From 26cf591e6dfc0d07495b7bcf20a557b316811f00 Mon Sep 17 00:00:00 2001 From: Douglas Gilbert Date: Sat, 18 Oct 2014 22:11:21 +0200 Subject: scsi: add SG_SCSI_RESET_NO_ESCALATE flag to SG_SCSI_RESET ioctl Further to a January 2013 thread titled: "[PATCH] SG_SCSI_RESET ioctl should only perform requested operation" by Jeremy Linton a patch (v3) is presented that expands the existing ioctl to include "no_escalate" versions to the existing resets. This requires no changes to SCSI low level drivers (LLDs); it adds several more finely tuned reset options to the user space. For example: /* This call remains the same, with the same escalating semantics * if the device (LU) reset fail. That is: on failure to try a * target reset and if that fails, try a bus reset, and if that fails * try a host (i.e. LLD) reset. */ val = SG_SCSI_RESET_DEVICE; res = ioctl(, SG_SCSI_RESET, &val); /* What follows is a new option introduced by this patch series. Only * a device reset is attempted. If that fails then an appropriate * error code is provided. N.B. There is no reset escalation. */ val = SG_SCSI_RESET_DEVICE | SG_SCSI_RESET_NO_ESCALATE; res = ioctl(, SG_SCSI_RESET, &val); Signed-off-by: Douglas Gilbert Reviewed-by: Jeremy Linton Reviewed-by: Hannes Reinecke Signed-off-by: Christoph Hellwig --- include/scsi/scsi_eh.h | 5 +++++ include/scsi/sg.h | 5 ++++- 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index 06a8790893ef..49af14ad5288 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -62,11 +62,16 @@ extern void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq); /* * Reset request from external source + * Note: if SCSI_TRY_RESET_DEVICE fails then it will escalate to + * SCSI_TRY_RESET_TARGET which if it fails will escalate to + * SCSI_TRY_RESET_BUS which if it fails will escalate to SCSI_TRY_RESET_HOST. + * To prevent escalation OR with SCSI_TRY_RESET_NO_ESCALATE. */ #define SCSI_TRY_RESET_DEVICE 1 #define SCSI_TRY_RESET_BUS 2 #define SCSI_TRY_RESET_HOST 3 #define SCSI_TRY_RESET_TARGET 4 +#define SCSI_TRY_RESET_NO_ESCALATE 0x100 /* OR-ed to prior defines */ extern int scsi_reset_provider(struct scsi_device *, int); diff --git a/include/scsi/sg.h b/include/scsi/sg.h index 750e5db7c6bf..3afec7032448 100644 --- a/include/scsi/sg.h +++ b/include/scsi/sg.h @@ -164,12 +164,15 @@ typedef struct sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */ /* Returns -EBUSY if occupied. 3rd argument pointer to int (see next) */ #define SG_SCSI_RESET 0x2284 -/* Associated values that can be given to SG_SCSI_RESET follow */ +/* Associated values that can be given to SG_SCSI_RESET follow. + * SG_SCSI_RESET_NO_ESCALATE may be OR-ed to the _DEVICE, _TARGET, _BUS + * or _HOST reset value so only that action is attempted. */ #define SG_SCSI_RESET_NOTHING 0 #define SG_SCSI_RESET_DEVICE 1 #define SG_SCSI_RESET_BUS 2 #define SG_SCSI_RESET_HOST 3 #define SG_SCSI_RESET_TARGET 4 +#define SG_SCSI_RESET_NO_ESCALATE 0x100 /* synchronous SCSI command ioctl, (only in version 3 interface) */ #define SG_IO 0x2285 /* similar effect as write() followed by read() */ -- cgit v1.2.3 From 639ae4d0337ce5bc6f5f6921ecb144841b617c26 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:26:41 +0200 Subject: scsi: remove scsi_cmd_print_sense_hdr() Unused. Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/constants.c | 14 -------------- include/scsi/scsi_dbg.h | 2 -- 2 files changed, 16 deletions(-) (limited to 'include') diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index d35a5d6c8d7c..2f447075adbb 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -1428,20 +1428,6 @@ scsi_print_sense_hdr(const char *name, struct scsi_sense_hdr *sshdr) } EXPORT_SYMBOL(scsi_print_sense_hdr); -/* - * Print normalized SCSI sense header with device information and a prefix. - */ -void -scsi_cmd_print_sense_hdr(struct scsi_cmnd *scmd, const char *desc, - struct scsi_sense_hdr *sshdr) -{ - scmd_printk(KERN_INFO, scmd, "%s: ", desc); - scsi_show_sense_hdr(sshdr); - scmd_printk(KERN_INFO, scmd, "%s: ", desc); - scsi_show_extd_sense(sshdr->asc, sshdr->ascq); -} -EXPORT_SYMBOL(scsi_cmd_print_sense_hdr); - static void scsi_decode_sense_buffer(const unsigned char *sense_buffer, int sense_len, struct scsi_sense_hdr *sshdr) diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index e89844cc2cd3..5a43a4cd96c6 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -9,8 +9,6 @@ extern void __scsi_print_command(unsigned char *); extern void scsi_show_extd_sense(unsigned char, unsigned char); extern void scsi_show_sense_hdr(struct scsi_sense_hdr *); extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *); -extern void scsi_cmd_print_sense_hdr(struct scsi_cmnd *, const char *, - struct scsi_sense_hdr *); extern void scsi_print_sense(char *, struct scsi_cmnd *); extern void __scsi_print_sense(const char *name, const unsigned char *sense_buffer, -- cgit v1.2.3 From 22e0d994151c3eac183625f8c1400c0c83ac414f Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:26:44 +0200 Subject: scsi: introduce sdev_prefix_printk() Like scmd_printk(), but the device name is passed in as a string. Can be used by eg ULDs which do not have access to the scsi_cmnd structure. Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/ch.c | 3 +-- drivers/scsi/sd.h | 6 +++--- drivers/scsi/sg.c | 4 ++-- drivers/scsi/sr.h | 3 +-- drivers/scsi/st.c | 3 +-- include/scsi/scsi_device.h | 9 +++++++++ 6 files changed, 17 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index ef5ae0d03616..52060e72b75d 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -85,8 +85,7 @@ static const char * vendor_labels[CH_TYPES-4] = { // module_param_string_array(vendor_labels, NULL, 0444); #define ch_printk(prefix, ch, fmt, a...) \ - sdev_printk(prefix, (ch)->device, "[%s] " fmt, \ - (ch)->name, ##a) + sdev_prefix_printk(prefix, (ch)->device, (ch)->name, fmt, ##a) #define DPRINTK(fmt, arg...) \ do { \ diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 467377884b63..63ba5ca7f9a1 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -103,9 +103,9 @@ static inline struct scsi_disk *scsi_disk(struct gendisk *disk) #define sd_printk(prefix, sdsk, fmt, a...) \ (sdsk)->disk ? \ - sdev_printk(prefix, (sdsk)->device, "[%s] " fmt, \ - (sdsk)->disk->disk_name, ##a) : \ - sdev_printk(prefix, (sdsk)->device, fmt, ##a) + sdev_prefix_printk(prefix, (sdsk)->device, \ + (sdsk)->disk->disk_name, fmt, ##a) : \ + sdev_printk(prefix, (sdsk)->device, fmt, ##a) #define sd_first_printk(prefix, sdsk, fmt, a...) \ do { \ diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index fe44c14f551e..55cbc6689d27 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -219,8 +219,8 @@ static void sg_device_destroy(struct kref *kref); #define SZ_SG_REQ_INFO sizeof(sg_req_info_t) #define sg_printk(prefix, sdp, fmt, a...) \ - sdev_printk(prefix, (sdp)->device, "[%s] " fmt, \ - (sdp)->disk->disk_name, ##a) + sdev_prefix_printk(prefix, (sdp)->device, \ + (sdp)->disk->disk_name, fmt, ##a) static int sg_allow_access(struct file *filp, unsigned char *cmd) { diff --git a/drivers/scsi/sr.h b/drivers/scsi/sr.h index 1d1f6f416c59..1de33719ad8e 100644 --- a/drivers/scsi/sr.h +++ b/drivers/scsi/sr.h @@ -57,8 +57,7 @@ typedef struct scsi_cd { } Scsi_CD; #define sr_printk(prefix, cd, fmt, a...) \ - sdev_printk(prefix, (cd)->device, "[%s] " fmt, \ - (cd)->cdi.name, ##a) + sdev_prefix_printk(prefix, (cd)->device, (cd)->cdi.name, fmt, ##a) int sr_do_ioctl(Scsi_CD *, struct packet_command *); diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 8d5f8b4f9a22..36ab023793ca 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -314,8 +314,7 @@ static inline char *tape_name(struct scsi_tape *tape) } #define st_printk(prefix, t, fmt, a...) \ - sdev_printk(prefix, (t)->device, "%s: " fmt, \ - tape_name(t), ##a) + sdev_prefix_printk(prefix, (t)->device, tape_name(t), fmt, ##a) #ifdef DEBUG #define DEBC_printk(t, fmt, a...) \ if (debugging) { st_printk(ST_DEB_MSG, t, fmt, ##a ); } diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 27ecee73bd72..0b18a097c1ba 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -244,6 +244,15 @@ struct scsi_dh_data { #define sdev_dbg(sdev, fmt, a...) \ dev_dbg(&(sdev)->sdev_gendev, fmt, ##a) +/* + * like scmd_printk, but the device name is passed in + * as a string pointer + */ +#define sdev_prefix_printk(l, sdev, p, fmt, a...) \ + (p) ? \ + sdev_printk(l, sdev, "[%s] " fmt, p, ##a) : \ + sdev_printk(l, sdev, fmt, ##a) + #define scmd_printk(prefix, scmd, fmt, a...) \ (scmd)->request->rq_disk ? \ sdev_printk(prefix, (scmd)->device, "[%s] " fmt, \ -- cgit v1.2.3 From d811b848ebb78a1135658aa20a80e31994df47f7 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:26:45 +0200 Subject: scsi: use sdev as argument for sense code printing We should be using the standard dev_printk() variants for sense code printing. [hch: remove __scsi_print_sense call in xen-scsiback, Acked by Juergen] [hch: folded bracing fix from Dan Carpenter] Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/53c700.c | 2 +- drivers/scsi/ch.c | 2 +- drivers/scsi/constants.c | 120 ++++++++++++++++++++++---------------------- drivers/scsi/osst.c | 8 +-- drivers/scsi/scsi.c | 2 +- drivers/scsi/scsi_error.c | 2 +- drivers/scsi/scsi_ioctl.c | 2 +- drivers/scsi/scsi_lib.c | 4 +- drivers/scsi/sd.c | 9 ++-- drivers/scsi/sg.c | 2 +- drivers/scsi/sr_ioctl.c | 6 +-- drivers/scsi/st.c | 6 ++- drivers/scsi/storvsc_drv.c | 3 +- drivers/scsi/ufs/ufshcd.c | 4 +- drivers/usb/storage/debug.c | 10 ++-- drivers/xen/xen-scsiback.c | 4 -- include/scsi/scsi_dbg.h | 17 ++++--- include/scsi/scsi_eh.h | 2 +- 18 files changed, 107 insertions(+), 98 deletions(-) (limited to 'include') diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index fabd4be2c985..68bf423008a4 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -602,7 +602,7 @@ NCR_700_scsi_done(struct NCR_700_Host_Parameters *hostdata, #ifdef NCR_700_DEBUG printk(" ORIGINAL CMD %p RETURNED %d, new return is %d sense is\n", SCp, SCp->cmnd[7], result); - scsi_print_sense("53c700", SCp); + scsi_print_sense(SCp); #endif dma_unmap_single(hostdata->dev, slot->dma_handle, diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index 52060e72b75d..53621a34c5f9 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -206,7 +206,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd, DPRINTK("result: 0x%x\n",result); if (driver_byte(result) & DRIVER_SENSE) { if (debug) - scsi_print_sense_hdr(ch->name, &sshdr); + scsi_print_sense_hdr(ch->device, ch->name, &sshdr); errno = ch_find_errno(&sshdr); switch(sshdr.sense_key) { diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 2f447075adbb..9065b6f8f51b 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -1292,18 +1292,19 @@ static const struct error_info additional[] = struct error_info2 { unsigned char code1, code2_min, code2_max; + const char * str; const char * fmt; }; static const struct error_info2 additional2[] = { - {0x40, 0x00, 0x7f, "Ram failure (%x)"}, - {0x40, 0x80, 0xff, "Diagnostic failure on component (%x)"}, - {0x41, 0x00, 0xff, "Data path failure (%x)"}, - {0x42, 0x00, 0xff, "Power-on or self-test failure (%x)"}, - {0x4D, 0x00, 0xff, "Tagged overlapped commands (task tag %x)"}, - {0x70, 0x00, 0xff, "Decompression exception short algorithm id of %x"}, - {0, 0, 0, NULL} + {0x40, 0x00, 0x7f, "Ram failure", ""}, + {0x40, 0x80, 0xff, "Diagnostic failure on component", ""}, + {0x41, 0x00, 0xff, "Data path failure", ""}, + {0x42, 0x00, 0xff, "Power-on or self-test failure", ""}, + {0x4D, 0x00, 0xff, "Tagged overlapped commands", "task tag "}, + {0x70, 0x00, 0xff, "Decompression exception", "short algorithm id of "}, + {0, 0, 0, NULL, NULL} }; /* description of the sense key values */ @@ -1349,7 +1350,8 @@ EXPORT_SYMBOL(scsi_sense_key_string); * This string may contain a "%x" and should be printed with ascq as arg. */ const char * -scsi_extd_sense_format(unsigned char asc, unsigned char ascq) { +scsi_extd_sense_format(unsigned char asc, unsigned char ascq, const char **fmt) +{ #ifdef CONFIG_SCSI_CONSTANTS int i; unsigned short code = ((asc << 8) | ascq); @@ -1360,8 +1362,10 @@ scsi_extd_sense_format(unsigned char asc, unsigned char ascq) { for (i = 0; additional2[i].fmt; i++) { if (additional2[i].code1 == asc && ascq >= additional2[i].code2_min && - ascq <= additional2[i].code2_max) - return additional2[i].fmt; + ascq <= additional2[i].code2_max) { + *fmt = additional2[i].fmt; + return additional2[i].str; + } } #endif return NULL; @@ -1369,49 +1373,53 @@ scsi_extd_sense_format(unsigned char asc, unsigned char ascq) { EXPORT_SYMBOL(scsi_extd_sense_format); void -scsi_show_extd_sense(unsigned char asc, unsigned char ascq) +scsi_show_extd_sense(const struct scsi_device *sdev, const char *name, + unsigned char asc, unsigned char ascq) { - const char *extd_sense_fmt = scsi_extd_sense_format(asc, ascq); + const char *extd_sense_fmt = NULL; + const char *extd_sense_str = scsi_extd_sense_format(asc, ascq, + &extd_sense_fmt); + + if (extd_sense_str) { + if (extd_sense_fmt) + sdev_prefix_printk(KERN_INFO, sdev, name, + "Add. Sense: %s (%s%x)", + extd_sense_str, extd_sense_fmt, + ascq); + else + sdev_prefix_printk(KERN_INFO, sdev, name, + "Add. Sense: %s", extd_sense_str); - if (extd_sense_fmt) { - if (strstr(extd_sense_fmt, "%x")) { - printk("Add. Sense: "); - printk(extd_sense_fmt, ascq); - } else - printk("Add. Sense: %s", extd_sense_fmt); } else { - if (asc >= 0x80) - printk("<> ASC=0x%x ASCQ=0x%x", asc, - ascq); - if (ascq >= 0x80) - printk("ASC=0x%x <> ASCQ=0x%x", asc, - ascq); - else - printk("ASC=0x%x ASCQ=0x%x", asc, ascq); + sdev_prefix_printk(KERN_INFO, sdev, name, + "%sASC=0x%x %sASCQ=0x%x\n", + asc >= 0x80 ? "<> " : "", asc, + ascq >= 0x80 ? "<> " : "", ascq); } - - printk("\n"); } EXPORT_SYMBOL(scsi_show_extd_sense); void -scsi_show_sense_hdr(struct scsi_sense_hdr *sshdr) +scsi_show_sense_hdr(const struct scsi_device *sdev, const char *name, + const struct scsi_sense_hdr *sshdr) { const char *sense_txt; sense_txt = scsi_sense_key_string(sshdr->sense_key); if (sense_txt) - printk("Sense Key : %s ", sense_txt); + sdev_prefix_printk(KERN_INFO, sdev, name, + "Sense Key : %s [%s]%s\n", sense_txt, + scsi_sense_is_deferred(sshdr) ? + "deferred" : "current", + sshdr->response_code >= 0x72 ? + " [descriptor]" : ""); else - printk("Sense Key : 0x%x ", sshdr->sense_key); - - printk("%s", scsi_sense_is_deferred(sshdr) ? "[deferred] " : - "[current] "); - - if (sshdr->response_code >= 0x72) - printk("[descriptor]"); - - printk("\n"); + sdev_prefix_printk(KERN_INFO, sdev, name, + "Sense Key : 0x%x [%s]%s", sshdr->sense_key, + scsi_sense_is_deferred(sshdr) ? + "deferred" : "current", + sshdr->response_code >= 0x72 ? + " [descriptor]" : ""); } EXPORT_SYMBOL(scsi_show_sense_hdr); @@ -1419,12 +1427,11 @@ EXPORT_SYMBOL(scsi_show_sense_hdr); * Print normalized SCSI sense header with a prefix. */ void -scsi_print_sense_hdr(const char *name, struct scsi_sense_hdr *sshdr) +scsi_print_sense_hdr(const struct scsi_device *sdev, const char *name, + const struct scsi_sense_hdr *sshdr) { - printk(KERN_INFO "%s: ", name); - scsi_show_sense_hdr(sshdr); - printk(KERN_INFO "%s: ", name); - scsi_show_extd_sense(sshdr->asc, sshdr->ascq); + scsi_show_sense_hdr(sdev, name, sshdr); + scsi_show_extd_sense(sdev, name, sshdr->asc, sshdr->ascq); } EXPORT_SYMBOL(scsi_print_sense_hdr); @@ -1513,33 +1520,26 @@ scsi_decode_sense_extras(const unsigned char *sense_buffer, int sense_len, } /* Normalize and print sense buffer with name prefix */ -void __scsi_print_sense(const char *name, const unsigned char *sense_buffer, - int sense_len) +void __scsi_print_sense(const struct scsi_device *sdev, const char *name, + const unsigned char *sense_buffer, int sense_len) { struct scsi_sense_hdr sshdr; - printk(KERN_INFO "%s: ", name); scsi_decode_sense_buffer(sense_buffer, sense_len, &sshdr); - scsi_show_sense_hdr(&sshdr); + scsi_show_sense_hdr(sdev, name, &sshdr); scsi_decode_sense_extras(sense_buffer, sense_len, &sshdr); - printk(KERN_INFO "%s: ", name); - scsi_show_extd_sense(sshdr.asc, sshdr.ascq); + scsi_show_extd_sense(sdev, name, sshdr.asc, sshdr.ascq); } EXPORT_SYMBOL(__scsi_print_sense); /* Normalize and print sense buffer in SCSI command */ -void scsi_print_sense(char *name, struct scsi_cmnd *cmd) +void scsi_print_sense(const struct scsi_cmnd *cmd) { - struct scsi_sense_hdr sshdr; + struct gendisk *disk = cmd->request->rq_disk; + const char *disk_name = disk ? disk->disk_name : NULL; - scmd_printk(KERN_INFO, cmd, " "); - scsi_decode_sense_buffer(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE, - &sshdr); - scsi_show_sense_hdr(&sshdr); - scsi_decode_sense_extras(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE, - &sshdr); - scmd_printk(KERN_INFO, cmd, " "); - scsi_show_extd_sense(sshdr.asc, sshdr.ascq); + __scsi_print_sense(cmd->device, disk_name, cmd->sense_buffer, + SCSI_SENSE_BUFFERSIZE); } EXPORT_SYMBOL(scsi_print_sense); diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index dff37a250d79..3d0d13c4da15 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -259,9 +259,10 @@ static int osst_chk_result(struct osst_tape * STp, struct osst_request * SRpnt) SRpnt->cmd[0], SRpnt->cmd[1], SRpnt->cmd[2], SRpnt->cmd[3], SRpnt->cmd[4], SRpnt->cmd[5]); if (scode) printk(OSST_DEB_MSG "%s:D: Sense: %02x, ASC: %02x, ASCQ: %02x\n", - name, scode, sense[12], sense[13]); + name, scode, sense[12], sense[13]); if (cmdstatp->have_sense) - __scsi_print_sense("osst ", SRpnt->sense, SCSI_SENSE_BUFFERSIZE); + __scsi_print_sense(STp->device, name, + SRpnt->sense, SCSI_SENSE_BUFFERSIZE); } else #endif @@ -275,7 +276,8 @@ static int osst_chk_result(struct osst_tape * STp, struct osst_request * SRpnt) SRpnt->cmd[0] != TEST_UNIT_READY)) { /* Abnormal conditions for tape */ if (cmdstatp->have_sense) { printk(KERN_WARNING "%s:W: Command with sense data:\n", name); - __scsi_print_sense("osst ", SRpnt->sense, SCSI_SENSE_BUFFERSIZE); + __scsi_print_sense(STp->device, name, + SRpnt->sense, SCSI_SENSE_BUFFERSIZE); } else { static int notyetprinted = 1; diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 79c77b485a67..32eaac03cf4e 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -606,7 +606,7 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) scsi_print_result(cmd); scsi_print_command(cmd); if (status_byte(cmd->result) & CHECK_CONDITION) - scsi_print_sense("", cmd); + scsi_print_sense(cmd); if (level > 3) scmd_printk(KERN_INFO, cmd, "scsi host busy %d failed %d\n", diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 0ed666112b4f..0084f0b21a91 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1180,7 +1180,7 @@ int scsi_eh_get_sense(struct list_head *work_q, SCSI_LOG_ERROR_RECOVERY(3, scmd_printk(KERN_INFO, scmd, "sense requested for %p result %x\n", scmd, scmd->result)); - SCSI_LOG_ERROR_RECOVERY(3, scsi_print_sense("bh", scmd)); + SCSI_LOG_ERROR_RECOVERY(3, scsi_print_sense(scmd)); rtn = scsi_decide_disposition(scmd); diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index 12fe676d1343..5207274574f5 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -126,7 +126,7 @@ static int ioctl_internal_command(struct scsi_device *sdev, char *cmd, sdev_printk(KERN_INFO, sdev, "ioctl_internal_command return code = %x\n", result); - scsi_print_sense_hdr(" ", &sshdr); + scsi_print_sense_hdr(sdev, NULL, &sshdr); break; } } diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 389bc6fd19ae..3c96e3923520 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -912,7 +912,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) if ((sshdr.asc == 0x0) && (sshdr.ascq == 0x1d)) ; else if (!(req->cmd_flags & REQ_QUIET)) - scsi_print_sense("", cmd); + scsi_print_sense(cmd); result = 0; /* BLOCK_PC may have set error */ error = 0; @@ -1041,7 +1041,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) if (!(req->cmd_flags & REQ_QUIET)) { scsi_print_result(cmd); if (driver_byte(result) & DRIVER_SENSE) - scsi_print_sense("", cmd); + scsi_print_sense(cmd); scsi_print_command(cmd); } if (!scsi_end_request(req, error, blk_rq_err_bytes(req), 0)) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 52b40b1e8c45..3ae75402809a 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3336,10 +3336,11 @@ module_exit(exit_sd); static void sd_print_sense_hdr(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr) { - sd_printk(KERN_INFO, sdkp, " "); - scsi_show_sense_hdr(sshdr); - sd_printk(KERN_INFO, sdkp, " "); - scsi_show_extd_sense(sshdr->asc, sshdr->ascq); + scsi_show_sense_hdr(sdkp->device, + sdkp->disk ? sdkp->disk->disk_name : NULL, sshdr); + scsi_show_extd_sense(sdkp->device, + sdkp->disk ? sdkp->disk->disk_name : NULL, + sshdr->asc, sshdr->ascq); } static void sd_print_result(struct scsi_disk *sdkp, int result) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 55cbc6689d27..2fe2701d86db 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1365,7 +1365,7 @@ sg_rq_end_io(struct request *rq, int uptodate) if ((sdp->sgdebug > 0) && ((CHECK_CONDITION == srp->header.masked_status) || (COMMAND_TERMINATED == srp->header.masked_status))) - __scsi_print_sense(__func__, sense, + __scsi_print_sense(sdp->device, __func__, sense, SCSI_SENSE_BUFFERSIZE); /* Following if statement is a patch supplied by Eric Youngdale */ diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c index 6389fcff12ec..17e0c2b28a99 100644 --- a/drivers/scsi/sr_ioctl.c +++ b/drivers/scsi/sr_ioctl.c @@ -246,7 +246,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc) "CDROM not ready. Make sure there " "is a disc in the drive.\n"); #ifdef DEBUG - scsi_print_sense_hdr("sr", &sshdr); + scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr); #endif err = -ENOMEDIUM; break; @@ -258,14 +258,14 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc) err = -EDRIVE_CANT_DO_THIS; #ifdef DEBUG __scsi_print_command(cgc->cmd); - scsi_print_sense_hdr("sr", &sshdr); + scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr); #endif break; default: sr_printk(KERN_ERR, cd, "CDROM (ioctl) error, command: "); __scsi_print_command(cgc->cmd); - scsi_print_sense_hdr("sr", &sshdr); + scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr); err = -EIO; } } diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 36ab023793ca..63c35ed3c88d 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -381,7 +381,8 @@ static int st_chk_result(struct scsi_tape *STp, struct st_request * SRpnt) SRpnt->cmd[0], SRpnt->cmd[1], SRpnt->cmd[2], SRpnt->cmd[3], SRpnt->cmd[4], SRpnt->cmd[5]); if (cmdstatp->have_sense) - __scsi_print_sense(name, SRpnt->sense, SCSI_SENSE_BUFFERSIZE); + __scsi_print_sense(STp->device, name, + SRpnt->sense, SCSI_SENSE_BUFFERSIZE); } ) /* end DEB */ if (!debugging) { /* Abnormal conditions for tape */ if (!cmdstatp->have_sense) @@ -397,7 +398,8 @@ static int st_chk_result(struct scsi_tape *STp, struct st_request * SRpnt) SRpnt->cmd[0] != MODE_SENSE && SRpnt->cmd[0] != TEST_UNIT_READY) { - __scsi_print_sense(name, SRpnt->sense, SCSI_SENSE_BUFFERSIZE); + __scsi_print_sense(STp->device, name, + SRpnt->sense, SCSI_SENSE_BUFFERSIZE); } } diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 733e5f759518..37f5fd8ed765 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1097,7 +1097,8 @@ static void storvsc_command_completion(struct storvsc_cmd_request *cmd_request) if (scmnd->result) { if (scsi_normalize_sense(scmnd->sense_buffer, SCSI_SENSE_BUFFERSIZE, &sense_hdr)) - scsi_print_sense_hdr("storvsc", &sense_hdr); + scsi_print_sense_hdr(scmnd->device, "storvsc", + &sense_hdr); } if (vm_srb->srb_status != SRB_STATUS_SUCCESS) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 497c38a4a866..eb3997ed8e73 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4710,8 +4710,8 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, "START_STOP failed for power mode: %d\n", pwr_mode); scsi_show_result(ret); if (driver_byte(ret) & DRIVER_SENSE) { - scsi_show_sense_hdr(&sshdr); - scsi_show_extd_sense(sshdr.asc, sshdr.ascq); + scsi_show_sense_hdr(sdp, NULL, &sshdr); + scsi_show_extd_sense(sdp, NULL, sshdr.asc, sshdr.ascq); } } diff --git a/drivers/usb/storage/debug.c b/drivers/usb/storage/debug.c index e08f64780e30..66a684a29938 100644 --- a/drivers/usb/storage/debug.c +++ b/drivers/usb/storage/debug.c @@ -164,10 +164,10 @@ void usb_stor_show_sense(const struct us_data *us, unsigned char asc, unsigned char ascq) { - const char *what, *keystr; + const char *what, *keystr, *fmt; keystr = scsi_sense_key_string(key); - what = scsi_extd_sense_format(asc, ascq); + what = scsi_extd_sense_format(asc, ascq, &fmt); if (keystr == NULL) keystr = "(Unknown Key)"; @@ -175,8 +175,10 @@ void usb_stor_show_sense(const struct us_data *us, what = "(unknown ASC/ASCQ)"; usb_stor_dbg(us, "%s: ", keystr); - US_DEBUGPX(what, ascq); - US_DEBUGPX("\n"); + if (fmt) + US_DEBUGPX("%s (%s%x)\n", what, fmt, ascq); + else + US_DEBUGPX("%s\n", what); } int usb_stor_dbg(const struct us_data *us, const char *fmt, ...) diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 3e32146472a5..50610a6acf3d 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -274,10 +274,6 @@ static void scsiback_print_status(char *sense_buffer, int errors, tpg->tport->tport_name, pending_req->v2p->lun, pending_req->cmnd[0], status_byte(errors), msg_byte(errors), host_byte(errors), driver_byte(errors)); - - if (CHECK_CONDITION & status_byte(errors)) - __scsi_print_sense("xen-pvscsi", sense_buffer, - SCSI_SENSE_BUFFERSIZE); } static void scsiback_fast_flush_area(struct vscsibk_pend *req) diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index 5a43a4cd96c6..6cbd179a17cc 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -2,21 +2,26 @@ #define _SCSI_SCSI_DBG_H struct scsi_cmnd; +struct scsi_device; struct scsi_sense_hdr; extern void scsi_print_command(struct scsi_cmnd *); extern void __scsi_print_command(unsigned char *); -extern void scsi_show_extd_sense(unsigned char, unsigned char); -extern void scsi_show_sense_hdr(struct scsi_sense_hdr *); -extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *); -extern void scsi_print_sense(char *, struct scsi_cmnd *); -extern void __scsi_print_sense(const char *name, +extern void scsi_show_extd_sense(const struct scsi_device *, const char *, + unsigned char, unsigned char); +extern void scsi_show_sense_hdr(const struct scsi_device *, const char *, + const struct scsi_sense_hdr *); +extern void scsi_print_sense_hdr(const struct scsi_device *, const char *, + const struct scsi_sense_hdr *); +extern void scsi_print_sense(const struct scsi_cmnd *); +extern void __scsi_print_sense(const struct scsi_device *, const char *name, const unsigned char *sense_buffer, int sense_len); extern void scsi_show_result(int); extern void scsi_print_result(struct scsi_cmnd *); extern void scsi_print_status(unsigned char); extern const char *scsi_sense_key_string(unsigned char); -extern const char *scsi_extd_sense_format(unsigned char, unsigned char); +extern const char *scsi_extd_sense_format(unsigned char, unsigned char, + const char **); #endif /* _SCSI_SCSI_DBG_H */ diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index 49af14ad5288..5e598f01143c 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -47,7 +47,7 @@ extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len, extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd, struct scsi_sense_hdr *sshdr); -static inline int scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr) +static inline int scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr) { return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1)); } -- cgit v1.2.3 From 4753cbc0a1286a60d2f859a7056f8e4873f494c8 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:26:52 +0200 Subject: scsi: use 'bool' as return value for scsi_normalize_sense() Convert scsi_normalize_sense() and friends to return 'bool' instead of an integer. Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Reviewed-by: Yoshihiro Yunomae Signed-off-by: Christoph Hellwig --- drivers/scsi/scsi_error.c | 16 ++++++++-------- drivers/scsi/scsi_lib.c | 2 +- include/scsi/scsi_eh.h | 14 +++++++------- 3 files changed, 16 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 0084f0b21a91..ab570f5cb6bb 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -2422,20 +2422,20 @@ EXPORT_SYMBOL(scsi_reset_provider); * responded to a SCSI command with the CHECK_CONDITION status. * * Return value: - * 1 if valid sense data information found, else 0; + * true if valid sense data information found, else false; */ -int scsi_normalize_sense(const u8 *sense_buffer, int sb_len, - struct scsi_sense_hdr *sshdr) +bool scsi_normalize_sense(const u8 *sense_buffer, int sb_len, + struct scsi_sense_hdr *sshdr) { if (!sense_buffer || !sb_len) - return 0; + return false; memset(sshdr, 0, sizeof(struct scsi_sense_hdr)); sshdr->response_code = (sense_buffer[0] & 0x7f); if (!scsi_sense_valid(sshdr)) - return 0; + return false; if (sshdr->response_code >= 0x72) { /* @@ -2465,12 +2465,12 @@ int scsi_normalize_sense(const u8 *sense_buffer, int sb_len, } } - return 1; + return true; } EXPORT_SYMBOL(scsi_normalize_sense); -int scsi_command_normalize_sense(struct scsi_cmnd *cmd, - struct scsi_sense_hdr *sshdr) +bool scsi_command_normalize_sense(const struct scsi_cmnd *cmd, + struct scsi_sense_hdr *sshdr) { return scsi_normalize_sense(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE, sshdr); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 3c96e3923520..30f51c11a279 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -831,7 +831,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) struct request *req = cmd->request; int error = 0; struct scsi_sense_hdr sshdr; - int sense_valid = 0; + bool sense_valid = false; int sense_deferred = 0; enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY, ACTION_DELAYED_RETRY} action; diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index 5e598f01143c..256248141322 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -27,10 +27,10 @@ struct scsi_sense_hdr { /* See SPC-3 section 4.5 */ u8 additional_length; /* always 0 for fixed sense format */ }; -static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr) +static inline bool scsi_sense_valid(const struct scsi_sense_hdr *sshdr) { if (!sshdr) - return 0; + return false; return (sshdr->response_code & 0x70) == 0x70; } @@ -42,12 +42,12 @@ extern void scsi_eh_flush_done_q(struct list_head *done_q); extern void scsi_report_bus_reset(struct Scsi_Host *, int); extern void scsi_report_device_reset(struct Scsi_Host *, int, int); extern int scsi_block_when_processing_errors(struct scsi_device *); -extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len, - struct scsi_sense_hdr *sshdr); -extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd, - struct scsi_sense_hdr *sshdr); +extern bool scsi_normalize_sense(const u8 *sense_buffer, int sb_len, + struct scsi_sense_hdr *sshdr); +extern bool scsi_command_normalize_sense(const struct scsi_cmnd *cmd, + struct scsi_sense_hdr *sshdr); -static inline int scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr) +static inline bool scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr) { return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1)); } -- cgit v1.2.3 From 7ac7076344d90b27e0b6dcbe1380b0841f70859b Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:26:53 +0200 Subject: scsi: remove scsi_print_status() Last caller is gone, so we can remove it. Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/constants.c | 35 ----------------------------------- include/scsi/scsi_dbg.h | 1 - 2 files changed, 36 deletions(-) (limited to 'include') diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 94c0642e2874..885c559164d0 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -433,41 +433,6 @@ void scsi_print_command(struct scsi_cmnd *cmd) } EXPORT_SYMBOL(scsi_print_command); -/** - * scsi_print_status - print scsi status description - * @scsi_status: scsi status value - * - * If the status is recognized, the description is printed. - * Otherwise "Unknown status" is output. No trailing space. - * If CONFIG_SCSI_CONSTANTS is not set, then print status in hex - * (e.g. "0x2" for Check Condition). - **/ -void -scsi_print_status(unsigned char scsi_status) { -#ifdef CONFIG_SCSI_CONSTANTS - const char * ccp; - - switch (scsi_status) { - case 0: ccp = "Good"; break; - case 0x2: ccp = "Check Condition"; break; - case 0x4: ccp = "Condition Met"; break; - case 0x8: ccp = "Busy"; break; - case 0x10: ccp = "Intermediate"; break; - case 0x14: ccp = "Intermediate-Condition Met"; break; - case 0x18: ccp = "Reservation Conflict"; break; - case 0x22: ccp = "Command Terminated"; break; /* obsolete */ - case 0x28: ccp = "Task set Full"; break; /* was: Queue Full */ - case 0x30: ccp = "ACA Active"; break; - case 0x40: ccp = "Task Aborted"; break; - default: ccp = "Unknown status"; - } - printk(KERN_INFO "%s", ccp); -#else - printk(KERN_INFO "0x%0x", scsi_status); -#endif -} -EXPORT_SYMBOL(scsi_print_status); - #ifdef CONFIG_SCSI_CONSTANTS struct error_info { diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index 6cbd179a17cc..386474ee53a1 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -19,7 +19,6 @@ extern void __scsi_print_sense(const struct scsi_device *, const char *name, int sense_len); extern void scsi_show_result(int); extern void scsi_print_result(struct scsi_cmnd *); -extern void scsi_print_status(unsigned char); extern const char *scsi_sense_key_string(unsigned char); extern const char *scsi_extd_sense_format(unsigned char, unsigned char, const char **); -- cgit v1.2.3 From a9a47bf58ac1d5525ae99922e055d8de87eeae78 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:26:57 +0200 Subject: scsi: repurpose the last argument from print_opcode_name() print_opcode_name() was only ever called with a '0' argument from LLDDs and ULDs which were _not_ supporting variable length CDBs, so the 'if' clause was never triggered. Instead we should be using the last argument to specify the cdb length to avoid accidental overflow when reading the cdb buffer. Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/arm/fas216.c | 2 +- drivers/scsi/ch.c | 24 +++++++++++++----------- drivers/scsi/constants.c | 25 ++++++++++--------------- drivers/scsi/sr_ioctl.c | 4 ++-- include/scsi/scsi_dbg.h | 2 +- 5 files changed, 27 insertions(+), 30 deletions(-) (limited to 'include') diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c index cea34633b90a..d2581cb41ec8 100644 --- a/drivers/scsi/arm/fas216.c +++ b/drivers/scsi/arm/fas216.c @@ -2424,7 +2424,7 @@ int fas216_eh_abort(struct scsi_cmnd *SCpnt) info->stats.aborts += 1; printk(KERN_WARNING "scsi%d: abort command ", info->host->host_no); - __scsi_print_command(SCpnt->cmnd); + __scsi_print_command(SCpnt->cmnd, SCpnt->cmd_len); print_debug_list(); fas216_dumpstate(info); diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index 53621a34c5f9..226ef771efff 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -182,7 +182,7 @@ static int ch_find_errno(struct scsi_sense_hdr *sshdr) } static int -ch_do_scsi(scsi_changer *ch, unsigned char *cmd, +ch_do_scsi(scsi_changer *ch, unsigned char *cmd, int cmd_len, void *buffer, unsigned buflength, enum dma_data_direction direction) { @@ -196,7 +196,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd, errno = 0; if (debug) { DPRINTK("command: "); - __scsi_print_command(cmd); + __scsi_print_command(cmd, cmd_len); } result = scsi_execute_req(ch->device, cmd, direction, buffer, @@ -257,7 +257,8 @@ ch_read_element_status(scsi_changer *ch, u_int elem, char *data) cmd[3] = elem & 0xff; cmd[5] = 1; cmd[9] = 255; - if (0 == (result = ch_do_scsi(ch, cmd, buffer, 256, DMA_FROM_DEVICE))) { + if (0 == (result = ch_do_scsi(ch, cmd, 12, + buffer, 256, DMA_FROM_DEVICE))) { if (((buffer[16] << 8) | buffer[17]) != elem) { DPRINTK("asked for element 0x%02x, got 0x%02x\n", elem,(buffer[16] << 8) | buffer[17]); @@ -287,7 +288,7 @@ ch_init_elem(scsi_changer *ch) memset(cmd,0,sizeof(cmd)); cmd[0] = INITIALIZE_ELEMENT_STATUS; cmd[1] = (ch->device->lun & 0x7) << 5; - err = ch_do_scsi(ch, cmd, NULL, 0, DMA_NONE); + err = ch_do_scsi(ch, cmd, 6, NULL, 0, DMA_NONE); VPRINTK(KERN_INFO, "... finished\n"); return err; } @@ -309,10 +310,10 @@ ch_readconfig(scsi_changer *ch) cmd[1] = (ch->device->lun & 0x7) << 5; cmd[2] = 0x1d; cmd[4] = 255; - result = ch_do_scsi(ch, cmd, buffer, 255, DMA_FROM_DEVICE); + result = ch_do_scsi(ch, cmd, 10, buffer, 255, DMA_FROM_DEVICE); if (0 != result) { cmd[1] |= (1<<3); - result = ch_do_scsi(ch, cmd, buffer, 255, DMA_FROM_DEVICE); + result = ch_do_scsi(ch, cmd, 10, buffer, 255, DMA_FROM_DEVICE); } if (0 == result) { ch->firsts[CHET_MT] = @@ -437,7 +438,7 @@ ch_position(scsi_changer *ch, u_int trans, u_int elem, int rotate) cmd[4] = (elem >> 8) & 0xff; cmd[5] = elem & 0xff; cmd[8] = rotate ? 1 : 0; - return ch_do_scsi(ch, cmd, NULL, 0, DMA_NONE); + return ch_do_scsi(ch, cmd, 10, NULL, 0, DMA_NONE); } static int @@ -458,7 +459,7 @@ ch_move(scsi_changer *ch, u_int trans, u_int src, u_int dest, int rotate) cmd[6] = (dest >> 8) & 0xff; cmd[7] = dest & 0xff; cmd[10] = rotate ? 1 : 0; - return ch_do_scsi(ch, cmd, NULL,0, DMA_NONE); + return ch_do_scsi(ch, cmd, 12, NULL,0, DMA_NONE); } static int @@ -484,7 +485,7 @@ ch_exchange(scsi_changer *ch, u_int trans, u_int src, cmd[9] = dest2 & 0xff; cmd[10] = (rotate1 ? 1 : 0) | (rotate2 ? 2 : 0); - return ch_do_scsi(ch, cmd, NULL,0, DMA_NONE); + return ch_do_scsi(ch, cmd, 12, NULL, 0, DMA_NONE); } static void @@ -534,7 +535,7 @@ ch_set_voltag(scsi_changer *ch, u_int elem, memcpy(buffer,tag,32); ch_check_voltag(buffer); - result = ch_do_scsi(ch, cmd, buffer, 256, DMA_TO_DEVICE); + result = ch_do_scsi(ch, cmd, 12, buffer, 256, DMA_TO_DEVICE); kfree(buffer); return result; } @@ -765,7 +766,8 @@ static long ch_ioctl(struct file *file, ch_cmd[5] = 1; ch_cmd[9] = 255; - result = ch_do_scsi(ch, ch_cmd, buffer, 256, DMA_FROM_DEVICE); + result = ch_do_scsi(ch, ch_cmd, 12, + buffer, 256, DMA_FROM_DEVICE); if (!result) { cge.cge_status = buffer[18]; cge.cge_flags = 0; diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index dc1b18c821ed..a84ced0de02b 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -320,25 +320,21 @@ static bool scsi_opcode_sa_name(int opcode, int service_action, return true; } -/* attempt to guess cdb length if cdb_len==0 . No trailing linefeed. */ -static void print_opcode_name(unsigned char * cdbp, int cdb_len) +static void print_opcode_name(const unsigned char *cdbp, size_t cdb_len) { - int sa, len, cdb0; + int sa, cdb0; const char *cdb_name = NULL, *sa_name = NULL; cdb0 = cdbp[0]; if (cdb0 == VARIABLE_LENGTH_CMD) { - len = scsi_varlen_cdb_length(cdbp); - if (len < 10) { - printk("short variable length command, " - "len=%d ext_len=%d", len, cdb_len); + if (cdb_len < 10) { + printk("short variable length command, len=%zu", + cdb_len); return; } sa = (cdbp[8] << 8) + cdbp[9]; - } else { + } else sa = cdbp[1] & 0x1f; - len = cdb_len; - } if (!scsi_opcode_sa_name(cdb0, sa, &cdb_name, &sa_name)) { if (cdb_name) @@ -356,18 +352,17 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len) printk("%s, sa=0x%x", cdb_name, sa); else printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa); - - if (cdb_len > 0 && len != cdb_len) - printk(", in_cdb_len=%d, ext_len=%d", len, cdb_len); } } -void __scsi_print_command(unsigned char *cdb) +void __scsi_print_command(const unsigned char *cdb, size_t cdb_len) { int k, len; - print_opcode_name(cdb, 0); + print_opcode_name(cdb, cdb_len); len = scsi_command_size(cdb); + if (cdb_len < len) + len = cdb_len; /* print out all bytes in cdb */ for (k = 0; k < len; ++k) printk(" %02x", cdb[k]); diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c index 17e0c2b28a99..fb929fac22ba 100644 --- a/drivers/scsi/sr_ioctl.c +++ b/drivers/scsi/sr_ioctl.c @@ -257,14 +257,14 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc) /* sense: Invalid command operation code */ err = -EDRIVE_CANT_DO_THIS; #ifdef DEBUG - __scsi_print_command(cgc->cmd); + __scsi_print_command(cgc->cmd, CDROM_PACKET_SIZE); scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr); #endif break; default: sr_printk(KERN_ERR, cd, "CDROM (ioctl) error, command: "); - __scsi_print_command(cgc->cmd); + __scsi_print_command(cgc->cmd, CDROM_PACKET_SIZE); scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr); err = -EIO; } diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index 386474ee53a1..81d041822229 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -6,7 +6,7 @@ struct scsi_device; struct scsi_sense_hdr; extern void scsi_print_command(struct scsi_cmnd *); -extern void __scsi_print_command(unsigned char *); +extern void __scsi_print_command(const unsigned char *, size_t); extern void scsi_show_extd_sense(const struct scsi_device *, const char *, unsigned char, unsigned char); extern void scsi_show_sense_hdr(const struct scsi_device *, const char *, -- cgit v1.2.3 From 3cc958cc19278de5fa090f3f7f1ed48b0170980a Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:26:59 +0200 Subject: scsi: separate out scsi_(host|driver)byte_string() Export functions for later use. Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/constants.c | 58 ++++++++++++++++++++++++++++++++++++------------ include/scsi/scsi_dbg.h | 2 ++ 2 files changed, 46 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index a84ced0de02b..541a8620929c 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -1407,38 +1407,68 @@ static const char * const hostbyte_table[]={ "DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE", "DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST", "DID_TARGET_FAILURE", "DID_NEXUS_FAILURE" }; -#define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table) static const char * const driverbyte_table[]={ "DRIVER_OK", "DRIVER_BUSY", "DRIVER_SOFT", "DRIVER_MEDIA", "DRIVER_ERROR", "DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"}; -#define NUM_DRIVERBYTE_STRS ARRAY_SIZE(driverbyte_table) -void scsi_show_result(int result) +#endif + +const char *scsi_hostbyte_string(int result) { + const char *hb_string = NULL; +#ifdef CONFIG_SCSI_CONSTANTS int hb = host_byte(result); - int db = driver_byte(result); - printk("Result: hostbyte=%s driverbyte=%s\n", - (hb < NUM_HOSTBYTE_STRS ? hostbyte_table[hb] : "invalid"), - (db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid")); + if (hb < ARRAY_SIZE(hostbyte_table)) + hb_string = hostbyte_table[hb]; +#endif + return hb_string; } +EXPORT_SYMBOL(scsi_hostbyte_string); -#else +const char *scsi_driverbyte_string(int result) +{ + const char *db_string = NULL; +#ifdef CONFIG_SCSI_CONSTANTS + int db = driver_byte(result); + + if (db < ARRAY_SIZE(driverbyte_table)) + db_string = driverbyte_table[db]; +#endif + return db_string; +} +EXPORT_SYMBOL(scsi_driverbyte_string); void scsi_show_result(int result) { - printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n", - host_byte(result), driver_byte(result)); -} + const char *hb_string = scsi_hostbyte_string(result); + const char *db_string = scsi_driverbyte_string(result); -#endif + if (hb_string || db_string) + printk("Result: hostbyte=%s driverbyte=%s\n", + hb_string ? hb_string : "invalid", + db_string ? db_string : "invalid"); + else + printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n", + host_byte(result), driver_byte(result)); +} EXPORT_SYMBOL(scsi_show_result); void scsi_print_result(struct scsi_cmnd *cmd) { - scmd_printk(KERN_INFO, cmd, " "); - scsi_show_result(cmd->result); + const char *hb_string = scsi_hostbyte_string(cmd->result); + const char *db_string = scsi_driverbyte_string(cmd->result); + + if (hb_string || db_string) + scmd_printk(KERN_INFO, cmd, + "Result: hostbyte=%s driverbyte=%s", + hb_string ? hb_string : "invalid", + db_string ? db_string : "invalid"); + else + scmd_printk(KERN_INFO, cmd, + "Result: hostbyte=0x%02x driverbyte=0x%02x", + host_byte(cmd->result), driver_byte(cmd->result)); } EXPORT_SYMBOL(scsi_print_result); diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index 81d041822229..50f4d8542ece 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -19,6 +19,8 @@ extern void __scsi_print_sense(const struct scsi_device *, const char *name, int sense_len); extern void scsi_show_result(int); extern void scsi_print_result(struct scsi_cmnd *); +extern const char *scsi_hostbyte_string(int); +extern const char *scsi_driverbyte_string(int); extern const char *scsi_sense_key_string(unsigned char); extern const char *scsi_extd_sense_format(unsigned char, unsigned char, const char **); -- cgit v1.2.3 From ef61329db7b8b4326b1c4e603806b2754fd2a692 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:27:00 +0200 Subject: scsi: remove scsi_show_result() Open-code scsi_print_result in sd.c, and cleanup logging to not print duplicate informations. Also remove the call to scsi_show_result() in ufshcd.c to be consistent with other callers of scsi_execute(). With that we can remove scsi_show_result in constants.c Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/constants.c | 16 --------------- drivers/scsi/sd.c | 50 ++++++++++++++++++++++++----------------------- drivers/scsi/ufs/ufshcd.c | 4 ++-- include/scsi/scsi_dbg.h | 1 - 4 files changed, 28 insertions(+), 43 deletions(-) (limited to 'include') diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 541a8620929c..2893464129b5 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -1440,22 +1440,6 @@ const char *scsi_driverbyte_string(int result) } EXPORT_SYMBOL(scsi_driverbyte_string); -void scsi_show_result(int result) -{ - const char *hb_string = scsi_hostbyte_string(result); - const char *db_string = scsi_driverbyte_string(result); - - if (hb_string || db_string) - printk("Result: hostbyte=%s driverbyte=%s\n", - hb_string ? hb_string : "invalid", - db_string ? db_string : "invalid"); - else - printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n", - host_byte(result), driver_byte(result)); -} -EXPORT_SYMBOL(scsi_show_result); - - void scsi_print_result(struct scsi_cmnd *cmd) { const char *hb_string = scsi_hostbyte_string(cmd->result); diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 3ae75402809a..242f9b177285 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -116,7 +116,7 @@ static int sd_eh_action(struct scsi_cmnd *, int); static void sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer); static void scsi_disk_release(struct device *cdev); static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *); -static void sd_print_result(struct scsi_disk *, int); +static void sd_print_result(const struct scsi_disk *, const char *, int); static DEFINE_SPINLOCK(sd_index_lock); static DEFINE_IDA(sd_index_ida); @@ -1492,7 +1492,7 @@ static int sd_sync_cache(struct scsi_disk *sdkp) } if (res) { - sd_print_result(sdkp, res); + sd_print_result(sdkp, "Synchronize Cache(10) failed", res); if (driver_byte(res) & DRIVER_SENSE) sd_print_sense_hdr(sdkp, &sshdr); @@ -1713,17 +1713,6 @@ static int sd_done(struct scsi_cmnd *SCpnt) if (sense_valid) sense_deferred = scsi_sense_is_deferred(&sshdr); } -#ifdef CONFIG_SCSI_LOGGING - SCSI_LOG_HLCOMPLETE(1, scsi_print_result(SCpnt)); - if (sense_valid) { - SCSI_LOG_HLCOMPLETE(1, scmd_printk(KERN_INFO, SCpnt, - "sd_done: sb[respc,sk,asc," - "ascq]=%x,%x,%x,%x\n", - sshdr.response_code, - sshdr.sense_key, sshdr.asc, - sshdr.ascq)); - } -#endif sdkp->medium_access_timed_out = 0; if (driver_byte(result) != DRIVER_SENSE && @@ -1778,6 +1767,10 @@ static int sd_done(struct scsi_cmnd *SCpnt) break; } out: + SCSI_LOG_HLCOMPLETE(1, scmd_printk(KERN_INFO, SCpnt, + "sd_done: completed %d of %d bytes\n", + good_bytes, scsi_bufflen(SCpnt))); + if (rq_data_dir(SCpnt->request) == READ && scsi_prot_sg_count(SCpnt)) sd_dif_complete(SCpnt, good_bytes); @@ -1833,12 +1826,12 @@ sd_spinup_disk(struct scsi_disk *sdkp) /* no sense, TUR either succeeded or failed * with a status error */ if(!spintime && !scsi_status_is_good(the_result)) { - sd_printk(KERN_NOTICE, sdkp, "Unit Not Ready\n"); - sd_print_result(sdkp, the_result); + sd_print_result(sdkp, "Test Unit Ready failed", + the_result); } break; } - + /* * The device does not want the automatic start to be issued. */ @@ -1954,7 +1947,6 @@ static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp, struct scsi_sense_hdr *sshdr, int sense_valid, int the_result) { - sd_print_result(sdkp, the_result); if (driver_byte(the_result) & DRIVER_SENSE) sd_print_sense_hdr(sdkp, sshdr); else @@ -2035,7 +2027,7 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp, } while (the_result && retries); if (the_result) { - sd_printk(KERN_NOTICE, sdkp, "READ CAPACITY(16) failed\n"); + sd_print_result(sdkp, "Read Capacity(16) failed", the_result); read_capacity_error(sdkp, sdp, &sshdr, sense_valid, the_result); return -EINVAL; } @@ -2117,7 +2109,7 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp, } while (the_result && retries); if (the_result) { - sd_printk(KERN_NOTICE, sdkp, "READ CAPACITY failed\n"); + sd_print_result(sdkp, "Read Capacity(10) failed", the_result); read_capacity_error(sdkp, sdp, &sshdr, sense_valid, the_result); return -EINVAL; } @@ -3141,8 +3133,7 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start) res = scsi_execute_req_flags(sdp, cmd, DMA_NONE, NULL, 0, &sshdr, SD_TIMEOUT, SD_MAX_RETRIES, NULL, REQ_PM); if (res) { - sd_printk(KERN_WARNING, sdkp, "START_STOP FAILED\n"); - sd_print_result(sdkp, res); + sd_print_result(sdkp, "Start/Stop Unit failed", res); if (driver_byte(res) & DRIVER_SENSE) sd_print_sense_hdr(sdkp, &sshdr); if (scsi_sense_valid(&sshdr) && @@ -3343,9 +3334,20 @@ static void sd_print_sense_hdr(struct scsi_disk *sdkp, sshdr->asc, sshdr->ascq); } -static void sd_print_result(struct scsi_disk *sdkp, int result) +static void sd_print_result(const struct scsi_disk *sdkp, const char *msg, + int result) { - sd_printk(KERN_INFO, sdkp, " "); - scsi_show_result(result); + const char *hb_string = scsi_hostbyte_string(result); + const char *db_string = scsi_driverbyte_string(result); + + if (hb_string || db_string) + sd_printk(KERN_INFO, sdkp, + "%s: Result: hostbyte=%s driverbyte=%s\n", msg, + hb_string ? hb_string : "invalid", + db_string ? db_string : "invalid"); + else + sd_printk(KERN_INFO, sdkp, + "%s: Result: hostbyte=0x%02x driverbyte=0x%02x\n", + msg, host_byte(result), driver_byte(result)); } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index eb3997ed8e73..9da319130da5 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4707,8 +4707,8 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, START_STOP_TIMEOUT, 0, NULL, REQ_PM); if (ret) { sdev_printk(KERN_WARNING, sdp, - "START_STOP failed for power mode: %d\n", pwr_mode); - scsi_show_result(ret); + "START_STOP failed for power mode: %d, result %x\n", + pwr_mode, ret); if (driver_byte(ret) & DRIVER_SENSE) { scsi_show_sense_hdr(sdp, NULL, &sshdr); scsi_show_extd_sense(sdp, NULL, sshdr.asc, sshdr.ascq); diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index 50f4d8542ece..f41a86bc1a8f 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -17,7 +17,6 @@ extern void scsi_print_sense(const struct scsi_cmnd *); extern void __scsi_print_sense(const struct scsi_device *, const char *name, const unsigned char *sense_buffer, int sense_len); -extern void scsi_show_result(int); extern void scsi_print_result(struct scsi_cmnd *); extern const char *scsi_hostbyte_string(int); extern const char *scsi_driverbyte_string(int); -- cgit v1.2.3 From c11c004b1c052fae77d3d0d14462d1f3a4e88d06 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 24 Oct 2014 14:27:01 +0200 Subject: scsi: simplify scsi_log_(send|completion) Simplify scsi_log_(send|completion) by externalizing scsi_mlreturn_string() and always print the command address. Signed-off-by: Hannes Reinecke Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/constants.c | 41 ++++++++++++++++++++++++++++++++++++++--- drivers/scsi/scsi.c | 43 ++++++------------------------------------- drivers/scsi/scsi_lib.c | 13 ++++++++++--- drivers/scsi/scsi_logging.h | 1 + include/scsi/scsi_dbg.h | 3 ++- 5 files changed, 57 insertions(+), 44 deletions(-) (limited to 'include') diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 2893464129b5..0cf43f6e464b 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -1440,19 +1440,54 @@ const char *scsi_driverbyte_string(int result) } EXPORT_SYMBOL(scsi_driverbyte_string); -void scsi_print_result(struct scsi_cmnd *cmd) +#ifdef CONFIG_SCSI_CONSTANTS +#define scsi_mlreturn_name(result) { result, #result } +static const struct value_name_pair scsi_mlreturn_arr[] = { + scsi_mlreturn_name(NEEDS_RETRY), + scsi_mlreturn_name(SUCCESS), + scsi_mlreturn_name(FAILED), + scsi_mlreturn_name(QUEUED), + scsi_mlreturn_name(SOFT_ERROR), + scsi_mlreturn_name(ADD_TO_MLQUEUE), + scsi_mlreturn_name(TIMEOUT_ERROR), + scsi_mlreturn_name(SCSI_RETURN_NOT_HANDLED), + scsi_mlreturn_name(FAST_IO_FAIL) +}; +#endif + +const char *scsi_mlreturn_string(int result) +{ +#ifdef CONFIG_SCSI_CONSTANTS + const struct value_name_pair *arr = scsi_mlreturn_arr; + int k; + + for (k = 0; k < ARRAY_SIZE(scsi_mlreturn_arr); ++k, ++arr) { + if (result == arr->value) + return arr->name; + } +#endif + return NULL; +} +EXPORT_SYMBOL(scsi_mlreturn_string); + +void scsi_print_result(struct scsi_cmnd *cmd, const char *msg, int disposition) { + const char *mlret_string = scsi_mlreturn_string(disposition); const char *hb_string = scsi_hostbyte_string(cmd->result); const char *db_string = scsi_driverbyte_string(cmd->result); if (hb_string || db_string) scmd_printk(KERN_INFO, cmd, - "Result: hostbyte=%s driverbyte=%s", + "%s%s Result: hostbyte=%s driverbyte=%s", + msg ? msg : "", + mlret_string ? mlret_string : "UNKNOWN", hb_string ? hb_string : "invalid", db_string ? db_string : "invalid"); else scmd_printk(KERN_INFO, cmd, - "Result: hostbyte=0x%02x driverbyte=0x%02x", + "%s%s Result: hostbyte=0x%02x driverbyte=0x%02x", + msg ? msg : "", + mlret_string ? mlret_string : "UNKNOWN", host_byte(cmd->result), driver_byte(cmd->result)); } EXPORT_SYMBOL(scsi_print_result); diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 32eaac03cf4e..bc52bbd97381 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -527,9 +527,9 @@ void scsi_log_send(struct scsi_cmnd *cmd) * * 1: nothing (match completion) * - * 2: log opcode + command of all commands + * 2: log opcode + command of all commands + cmd address * - * 3: same as 2 plus dump cmd address + * 3: same as 2 * * 4: same as 3 plus dump extra junk */ @@ -537,10 +537,8 @@ void scsi_log_send(struct scsi_cmnd *cmd) level = SCSI_LOG_LEVEL(SCSI_LOG_MLQUEUE_SHIFT, SCSI_LOG_MLQUEUE_BITS); if (level > 1) { - scmd_printk(KERN_INFO, cmd, "Send: "); - if (level > 2) - printk("0x%p ", cmd); - printk("\n"); + scmd_printk(KERN_INFO, cmd, + "Send: scmd 0x%p\n", cmd); scsi_print_command(cmd); if (level > 3) { printk(KERN_INFO "buffer = 0x%p, bufflen = %d," @@ -565,7 +563,7 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) * * 2: same as 1 but for all command completions. * - * 3: same as 2 plus dump cmd address + * 3: same as 2 * * 4: same as 3 plus dump extra junk */ @@ -574,36 +572,7 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) SCSI_LOG_MLCOMPLETE_BITS); if (((level > 0) && (cmd->result || disposition != SUCCESS)) || (level > 1)) { - scmd_printk(KERN_INFO, cmd, "Done: "); - if (level > 2) - printk("0x%p ", cmd); - /* - * Dump truncated values, so we usually fit within - * 80 chars. - */ - switch (disposition) { - case SUCCESS: - printk("SUCCESS\n"); - break; - case NEEDS_RETRY: - printk("RETRY\n"); - break; - case ADD_TO_MLQUEUE: - printk("MLQUEUE\n"); - break; - case FAILED: - printk("FAILED\n"); - break; - case TIMEOUT_ERROR: - /* - * If called via scsi_times_out. - */ - printk("TIMEOUT\n"); - break; - default: - printk("UNKNOWN\n"); - } - scsi_print_result(cmd); + scsi_print_result(cmd, "Done: ", disposition); scsi_print_command(cmd); if (status_byte(cmd->result) & CHECK_CONDITION) scsi_print_sense(cmd); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 30f51c11a279..26a57faf885b 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -832,7 +832,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) int error = 0; struct scsi_sense_hdr sshdr; bool sense_valid = false; - int sense_deferred = 0; + int sense_deferred = 0, level = 0; enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY, ACTION_DELAYED_RETRY} action; unsigned long wait_for = (cmd->allowed + 1) * req->timeout; @@ -1038,8 +1038,15 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) switch (action) { case ACTION_FAIL: /* Give up and fail the remainder of the request */ - if (!(req->cmd_flags & REQ_QUIET)) { - scsi_print_result(cmd); + if (unlikely(scsi_logging_level)) + level = SCSI_LOG_LEVEL(SCSI_LOG_MLQUEUE_SHIFT, + SCSI_LOG_MLQUEUE_BITS); + /* + * if logging is enabled the failure will be printed + * in scsi_log_completion(), so avoid duplicate messages + */ + if (!level && !(req->cmd_flags & REQ_QUIET)) { + scsi_print_result(cmd, NULL, FAILED); if (driver_byte(result) & DRIVER_SENSE) scsi_print_sense(cmd); scsi_print_command(cmd); diff --git a/drivers/scsi/scsi_logging.h b/drivers/scsi/scsi_logging.h index 1f65139e14f8..7fe64a847143 100644 --- a/drivers/scsi/scsi_logging.h +++ b/drivers/scsi/scsi_logging.h @@ -51,6 +51,7 @@ do { \ } while (0); \ } while (0) #else +#define SCSI_LOG_LEVEL(SHIFT, BITS) 0 #define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) #endif /* CONFIG_SCSI_LOGGING */ diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index f41a86bc1a8f..7982795df595 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -17,9 +17,10 @@ extern void scsi_print_sense(const struct scsi_cmnd *); extern void __scsi_print_sense(const struct scsi_device *, const char *name, const unsigned char *sense_buffer, int sense_len); -extern void scsi_print_result(struct scsi_cmnd *); +extern void scsi_print_result(struct scsi_cmnd *, const char *, int); extern const char *scsi_hostbyte_string(int); extern const char *scsi_driverbyte_string(int); +extern const char *scsi_mlreturn_string(int); extern const char *scsi_sense_key_string(unsigned char); extern const char *scsi_extd_sense_format(unsigned char, unsigned char, const char **); -- cgit v1.2.3 From 205fb5f5ba1d8edcf18009998ed05b80b7d186af Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 30 Oct 2014 14:45:11 +0100 Subject: blk-mq: add blk_mq_unique_tag() The queuecommand() callback functions in SCSI low-level drivers need to know which hardware context has been selected by the block layer. Since this information is not available in the request structure, and since passing the hctx pointer directly to the queuecommand callback function would require modification of all SCSI LLDs, add a function to the block layer that allows to query the hardware context index. Signed-off-by: Bart Van Assche Acked-by: Jens Axboe Reviewed-by: Sagi Grimberg Reviewed-by: Martin K. Petersen Signed-off-by: Christoph Hellwig --- block/blk-mq-tag.c | 28 ++++++++++++++++++++++++++++ block/blk-mq.c | 2 ++ include/linux/blk-mq.h | 17 +++++++++++++++++ 3 files changed, 47 insertions(+) (limited to 'include') diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index 8317175a3009..728b9a4d5f56 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -584,6 +584,34 @@ int blk_mq_tag_update_depth(struct blk_mq_tags *tags, unsigned int tdepth) return 0; } +/** + * blk_mq_unique_tag() - return a tag that is unique queue-wide + * @rq: request for which to compute a unique tag + * + * The tag field in struct request is unique per hardware queue but not over + * all hardware queues. Hence this function that returns a tag with the + * hardware context index in the upper bits and the per hardware queue tag in + * the lower bits. + * + * Note: When called for a request that is queued on a non-multiqueue request + * queue, the hardware context index is set to zero. + */ +u32 blk_mq_unique_tag(struct request *rq) +{ + struct request_queue *q = rq->q; + struct blk_mq_hw_ctx *hctx; + int hwq = 0; + + if (q->mq_ops) { + hctx = q->mq_ops->map_queue(q, rq->mq_ctx->cpu); + hwq = hctx->queue_num; + } + + return (hwq << BLK_MQ_UNIQUE_TAG_BITS) | + (rq->tag & BLK_MQ_UNIQUE_TAG_MASK); +} +EXPORT_SYMBOL(blk_mq_unique_tag); + ssize_t blk_mq_tag_sysfs_show(struct blk_mq_tags *tags, char *page) { char *orig_page = page; diff --git a/block/blk-mq.c b/block/blk-mq.c index 68929bad9a6a..b5896d436fc9 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2024,6 +2024,8 @@ static int blk_mq_alloc_rq_maps(struct blk_mq_tag_set *set) */ int blk_mq_alloc_tag_set(struct blk_mq_tag_set *set) { + BUILD_BUG_ON(BLK_MQ_MAX_DEPTH > 1 << BLK_MQ_UNIQUE_TAG_BITS); + if (!set->nr_hw_queues) return -EINVAL; if (!set->queue_depth) diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index c9be1589415a..15f7034aa377 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -167,6 +167,23 @@ struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp, bool reserved); struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag); +enum { + BLK_MQ_UNIQUE_TAG_BITS = 16, + BLK_MQ_UNIQUE_TAG_MASK = (1 << BLK_MQ_UNIQUE_TAG_BITS) - 1, +}; + +u32 blk_mq_unique_tag(struct request *rq); + +static inline u16 blk_mq_unique_tag_to_hwq(u32 unique_tag) +{ + return unique_tag >> BLK_MQ_UNIQUE_TAG_BITS; +} + +static inline u16 blk_mq_unique_tag_to_tag(u32 unique_tag) +{ + return unique_tag & BLK_MQ_UNIQUE_TAG_MASK; +} + struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *, const int ctx_index); struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_tag_set *, unsigned int, int); -- cgit v1.2.3 From efec4b90f1a9b4c80827e4b8c0863334e13b0bf1 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 30 Oct 2014 14:45:36 +0100 Subject: scsi: add support for multiple hardware queues Allow a SCSI LLD to declare how many hardware queues it supports by setting Scsi_Host.nr_hw_queues before calling scsi_add_host(). Signed-off-by: Bart Van Assche Reviewed-by: Sagi Grimberg Reviewed-by: Martin K. Petersen Signed-off-by: Christoph Hellwig --- drivers/scsi/scsi_lib.c | 2 +- include/scsi/scsi_host.h | 8 ++++++++ 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index fc0a8a0c0a34..38f8c85957b6 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2106,7 +2106,7 @@ int scsi_mq_setup_tags(struct Scsi_Host *shost) memset(&shost->tag_set, 0, sizeof(shost->tag_set)); shost->tag_set.ops = &scsi_mq_ops; - shost->tag_set.nr_hw_queues = 1; + shost->tag_set.nr_hw_queues = shost->nr_hw_queues ? : 1; shost->tag_set.queue_depth = shost->can_queue; shost->tag_set.cmd_size = cmd_size; shost->tag_set.numa_node = NUMA_NO_NODE; diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 5e362489ee88..bb9e27815be5 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -638,6 +638,14 @@ struct Scsi_Host { short unsigned int sg_prot_tablesize; unsigned int max_sectors; unsigned long dma_boundary; + /* + * In scsi-mq mode, the number of hardware queues supported by the LLD. + * + * Note: it is assumed that each hardware queue has a queue depth of + * can_queue. In other words, the total queue depth per host + * is nr_hw_queues * can_queue. + */ + unsigned nr_hw_queues; /* * Used to assign serial numbers to the cmds. * Protected by the host lock. -- cgit v1.2.3 From 1ee8e889d946b3b1c2cc8b99e29eac47d1581dfd Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 30 Oct 2014 14:46:00 +0100 Subject: scsi: add support for multiple hardware queues in scsi_(host_)find_tag Modify scsi_find_tag() and scsi_host_find_tag() such that these functions can translate a tag generated by blk_mq_unique_tag(). Signed-off-by: Bart Van Assche Reviewed-by: Martin K. Petersen Signed-off-by: Christoph Hellwig --- include/scsi/scsi_tcq.h | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index 56ed843969ca..7529c6acc231 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -111,18 +111,21 @@ static inline int scsi_populate_tag_msg(struct scsi_cmnd *cmd, char *msg) } static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost, - unsigned int hw_ctx, int tag) + int unique_tag) { - struct request *req; + u16 hwq = blk_mq_unique_tag_to_hwq(unique_tag); + struct request *req = NULL; - req = blk_mq_tag_to_rq(shost->tag_set.tags[hw_ctx], tag); + if (hwq < shost->tag_set.nr_hw_queues) + req = blk_mq_tag_to_rq(shost->tag_set.tags[hwq], + blk_mq_unique_tag_to_tag(unique_tag)); return req ? (struct scsi_cmnd *)req->special : NULL; } /** * scsi_find_tag - find a tagged command by device * @SDpnt: pointer to the ScSI device - * @tag: the tag number + * @tag: tag generated by blk_mq_unique_tag() * * Notes: * Only works with tags allocated by the generic blk layer. @@ -133,9 +136,9 @@ static inline struct scsi_cmnd *scsi_find_tag(struct scsi_device *sdev, int tag) if (tag != SCSI_NO_TAG) { if (shost_use_blk_mq(sdev->host)) - return scsi_mq_find_tag(sdev->host, 0, tag); + return scsi_mq_find_tag(sdev->host, tag); - req = blk_queue_find_tag(sdev->request_queue, tag); + req = blk_queue_find_tag(sdev->request_queue, tag); return req ? (struct scsi_cmnd *)req->special : NULL; } @@ -174,7 +177,7 @@ static inline int scsi_init_shared_tag_map(struct Scsi_Host *shost, int depth) /** * scsi_host_find_tag - find the tagged command by host * @shost: pointer to scsi_host - * @tag: tag of the scsi_cmnd + * @tag: tag generated by blk_mq_unique_tag() * * Notes: * Only works with tags allocated by the generic blk layer. @@ -186,7 +189,7 @@ static inline struct scsi_cmnd *scsi_host_find_tag(struct Scsi_Host *shost, if (tag != SCSI_NO_TAG) { if (shost_use_blk_mq(shost)) - return scsi_mq_find_tag(shost, 0, tag); + return scsi_mq_find_tag(shost, tag); req = blk_map_queue_find_tag(shost->bqt, tag); return req ? (struct scsi_cmnd *)req->special : NULL; } -- cgit v1.2.3 From 176aa9d6ee2db582e7e856dbe1983004a82869b4 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 11 Oct 2014 12:06:47 +0200 Subject: scsi: refactor scsi_reset_provider handling Pull the common code from the two callers into the function, and rename it to scsi_ioctl_reset. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke --- drivers/scsi/scsi_error.c | 76 ++++++++++++++++++++++------------------------- drivers/scsi/scsi_ioctl.c | 33 +------------------- drivers/scsi/sg.c | 34 ++------------------- include/scsi/scsi_eh.h | 15 +--------- 4 files changed, 41 insertions(+), 117 deletions(-) (limited to 'include') diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 95c9abb64183..a6f6b9222b51 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -36,6 +36,7 @@ #include #include #include +#include #include "scsi_priv.h" #include "scsi_logging.h" @@ -2311,39 +2312,36 @@ scsi_reset_provider_done_command(struct scsi_cmnd *scmd) { } -/* - * Function: scsi_reset_provider - * - * Purpose: Send requested reset to a bus or device at any phase. - * - * Arguments: device - device to send reset to - * flag - reset type (see scsi.h) - * - * Returns: SUCCESS/FAILURE. - * - * Notes: This is used by the SCSI Generic driver to provide - * Bus/Device reset capability. +/** + * scsi_ioctl_reset: explicitly reset a host/bus/target/device + * @dev: scsi_device to operate on + * @arg: reset type (see sg.h) */ int -scsi_reset_provider(struct scsi_device *dev, int flag) +scsi_ioctl_reset(struct scsi_device *dev, int __user *arg) { struct scsi_cmnd *scmd; struct Scsi_Host *shost = dev->host; struct request req; unsigned long flags; - int rtn; + int error = 0, rtn, val; + + if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) + return -EACCES; + + error = get_user(val, arg); + if (error) + return error; if (scsi_autopm_get_host(shost) < 0) - return FAILED; + return -EIO; - if (!get_device(&dev->sdev_gendev)) { - rtn = FAILED; + error = -EIO; + if (!get_device(&dev->sdev_gendev)) goto out_put_autopm_host; - } scmd = scsi_get_command(dev, GFP_KERNEL); if (!scmd) { - rtn = FAILED; put_device(&dev->sdev_gendev); goto out_put_autopm_host; } @@ -2364,39 +2362,37 @@ scsi_reset_provider(struct scsi_device *dev, int flag) shost->tmf_in_progress = 1; spin_unlock_irqrestore(shost->host_lock, flags); - switch (flag) { - case SCSI_TRY_RESET_DEVICE: + switch (val & ~SG_SCSI_RESET_NO_ESCALATE) { + case SG_SCSI_RESET_NOTHING: + rtn = SUCCESS; + break; + case SG_SCSI_RESET_DEVICE: rtn = scsi_try_bus_device_reset(scmd); - if (rtn == SUCCESS) + if (rtn == SUCCESS || (val & SG_SCSI_RESET_NO_ESCALATE)) break; /* FALLTHROUGH */ - case SCSI_TRY_RESET_TARGET: + case SG_SCSI_RESET_TARGET: rtn = scsi_try_target_reset(scmd); - if (rtn == SUCCESS) + if (rtn == SUCCESS || (val & SG_SCSI_RESET_NO_ESCALATE)) break; /* FALLTHROUGH */ - case SCSI_TRY_RESET_BUS: + case SG_SCSI_RESET_BUS: rtn = scsi_try_bus_reset(scmd); - if (rtn == SUCCESS) + if (rtn == SUCCESS || (val & SG_SCSI_RESET_NO_ESCALATE)) break; /* FALLTHROUGH */ - case SCSI_TRY_RESET_HOST: - case SCSI_TRY_RESET_HOST | SCSI_TRY_RESET_NO_ESCALATE: + case SG_SCSI_RESET_HOST: rtn = scsi_try_host_reset(scmd); - break; - case SCSI_TRY_RESET_DEVICE | SCSI_TRY_RESET_NO_ESCALATE: - rtn = scsi_try_bus_device_reset(scmd); - break; - case SCSI_TRY_RESET_TARGET | SCSI_TRY_RESET_NO_ESCALATE: - rtn = scsi_try_target_reset(scmd); - break; - case SCSI_TRY_RESET_BUS | SCSI_TRY_RESET_NO_ESCALATE: - rtn = scsi_try_bus_reset(scmd); - break; + if (rtn == SUCCESS) + break; default: + /* FALLTHROUGH */ rtn = FAILED; + break; } + error = (rtn == SUCCESS) ? 0 : -EIO; + spin_lock_irqsave(shost->host_lock, flags); shost->tmf_in_progress = 0; spin_unlock_irqrestore(shost->host_lock, flags); @@ -2416,9 +2412,9 @@ scsi_reset_provider(struct scsi_device *dev, int flag) scsi_next_command(scmd); out_put_autopm_host: scsi_autopm_put_host(shost); - return rtn; + return error; } -EXPORT_SYMBOL(scsi_reset_provider); +EXPORT_SYMBOL(scsi_ioctl_reset); /** * scsi_normalize_sense - normalize main elements from either fixed or diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index 5207274574f5..5ddc08f39987 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -292,8 +292,6 @@ EXPORT_SYMBOL(scsi_ioctl); int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd, void __user *arg, int ndelay) { - int val, val2, result; - /* The first set of iocts may be executed even if we're doing * error processing, as long as the device was opened * non-blocking */ @@ -305,36 +303,7 @@ int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd, switch (cmd) { case SG_SCSI_RESET: - result = get_user(val, (int __user *)arg); - if (result) - return result; - if (val & SG_SCSI_RESET_NO_ESCALATE) { - val &= ~SG_SCSI_RESET_NO_ESCALATE; - val2 = SCSI_TRY_RESET_NO_ESCALATE; - } else - val2 = 0; - if (val == SG_SCSI_RESET_NOTHING) - return 0; - switch (val) { - case SG_SCSI_RESET_DEVICE: - val2 |= SCSI_TRY_RESET_DEVICE; - break; - case SG_SCSI_RESET_TARGET: - val2 |= SCSI_TRY_RESET_TARGET; - break; - case SG_SCSI_RESET_BUS: - val2 |= SCSI_TRY_RESET_BUS; - break; - case SG_SCSI_RESET_HOST: - val2 |= SCSI_TRY_RESET_HOST; - break; - default: - return -EINVAL; - } - if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) - return -EACCES; - return (scsi_reset_provider(sdev, val2) == - SUCCESS) ? 0 : -EIO; + return scsi_ioctl_reset(sdev, arg); } return -ENODEV; } diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 2fe2701d86db..7c55cacceb7c 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -847,7 +847,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) { void __user *p = (void __user *)arg; int __user *ip = p; - int result, val, val2, read_only; + int result, val, read_only; Sg_device *sdp; Sg_fd *sfp; Sg_request *srp; @@ -1079,36 +1079,8 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) return -EBUSY; } else if (!scsi_block_when_processing_errors(sdp->device)) return -EBUSY; - result = get_user(val, ip); - if (result) - return result; - if (val & SG_SCSI_RESET_NO_ESCALATE) { - val &= ~SG_SCSI_RESET_NO_ESCALATE; - val2 = SCSI_TRY_RESET_NO_ESCALATE; - } else - val2 = 0; - if (SG_SCSI_RESET_NOTHING == val) - return 0; - switch (val) { - case SG_SCSI_RESET_DEVICE: - val2 |= SCSI_TRY_RESET_DEVICE; - break; - case SG_SCSI_RESET_TARGET: - val2 |= SCSI_TRY_RESET_TARGET; - break; - case SG_SCSI_RESET_BUS: - val2 |= SCSI_TRY_RESET_BUS; - break; - case SG_SCSI_RESET_HOST: - val2 |= SCSI_TRY_RESET_HOST; - break; - default: - return -EINVAL; - } - if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) - return -EACCES; - return (scsi_reset_provider(sdp->device, val2) == - SUCCESS) ? 0 : -EIO; + + return scsi_ioctl_reset(sdp->device, ip); case SCSI_IOCTL_SEND_COMMAND: if (atomic_read(&sdp->detaching)) return -ENODEV; diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index 256248141322..1e1421b06565 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -60,20 +60,7 @@ extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, extern void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq); -/* - * Reset request from external source - * Note: if SCSI_TRY_RESET_DEVICE fails then it will escalate to - * SCSI_TRY_RESET_TARGET which if it fails will escalate to - * SCSI_TRY_RESET_BUS which if it fails will escalate to SCSI_TRY_RESET_HOST. - * To prevent escalation OR with SCSI_TRY_RESET_NO_ESCALATE. - */ -#define SCSI_TRY_RESET_DEVICE 1 -#define SCSI_TRY_RESET_BUS 2 -#define SCSI_TRY_RESET_HOST 3 -#define SCSI_TRY_RESET_TARGET 4 -#define SCSI_TRY_RESET_NO_ESCALATE 0x100 /* OR-ed to prior defines */ - -extern int scsi_reset_provider(struct scsi_device *, int); +extern int scsi_ioctl_reset(struct scsi_device *, int __user *); struct scsi_eh_save { /* saved state */ -- cgit v1.2.3 From 906d15fbd23c1267addab361063c1c8119992215 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 11 Oct 2014 16:25:31 +0200 Subject: scsi: split scsi_nonblockable_ioctl The calling conventions for this function are bad as it could return -ENODEV both for a device not currently online and a not recognized ioctl. Add a new scsi_ioctl_block_when_processing_errors function that wraps scsi_block_when_processing_errors with the a special case for the SG_SCSI_RESET ioctl command, and handle the SG_SCSI_RESET case itself in scsi_ioctl. All callers of scsi_ioctl now must call the above helper to check for the EH state, so that the ioctl handler itself doesn't have to. Reported-by: Robert Elliott Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke --- drivers/scsi/ch.c | 5 +++++ drivers/scsi/osst.c | 6 +++--- drivers/scsi/scsi_ioctl.c | 47 +++++++++++++---------------------------------- drivers/scsi/sd.c | 6 +++--- drivers/scsi/sg.c | 33 +++++++++++++++------------------ drivers/scsi/sr.c | 15 +++++---------- drivers/scsi/st.c | 7 +++---- include/scsi/scsi_ioctl.h | 4 ++-- 8 files changed, 49 insertions(+), 74 deletions(-) (limited to 'include') diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index 226ef771efff..4f502f95f3b8 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -616,6 +616,11 @@ static long ch_ioctl(struct file *file, int retval; void __user *argp = (void __user *)arg; + retval = scsi_ioctl_block_when_processing_errors(ch->device, cmd, + file->f_flags & O_NDELAY); + if (retval) + return retval; + switch (cmd) { case CHIOGPARAMS: { diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index 3d0d13c4da15..b6d63d636692 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -4969,10 +4969,10 @@ static long osst_ioctl(struct file * file, * may try and take the device offline, in which case all further * access to the device is prohibited. */ - if( !scsi_block_when_processing_errors(STp->device) ) { - retval = (-ENXIO); + retval = scsi_ioctl_block_when_processing_errors(STp->device, cmd_in, + file->f_flags & O_NDELAY); + if (retval) goto out; - } cmd_type = _IOC_TYPE(cmd_in); cmd_nr = _IOC_NR(cmd_in); diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index 5ddc08f39987..712f159ebb69 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -200,19 +200,6 @@ int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) { char scsi_cmd[MAX_COMMAND_SIZE]; - /* No idea how this happens.... */ - if (!sdev) - return -ENXIO; - - /* - * If we are in the middle of error recovery, don't let anyone - * else try and use this device. Also, if error recovery fails, it - * may try and take the device offline, in which case all further - * access to the device is prohibited. - */ - if (!scsi_block_when_processing_errors(sdev)) - return -ENODEV; - /* Check for deprecated ioctls ... all the ioctls which don't * follow the new unique numbering scheme are deprecated */ switch (cmd) { @@ -273,6 +260,8 @@ int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) START_STOP_TIMEOUT, NORMAL_RETRIES); case SCSI_IOCTL_GET_PCI: return scsi_ioctl_get_pci(sdev, arg); + case SG_SCSI_RESET: + return scsi_ioctl_reset(sdev, arg); default: if (sdev->host->hostt->ioctl) return sdev->host->hostt->ioctl(sdev, cmd, arg); @@ -281,30 +270,20 @@ int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) } EXPORT_SYMBOL(scsi_ioctl); -/** - * scsi_nonblockable_ioctl() - Handle SG_SCSI_RESET - * @sdev: scsi device receiving ioctl - * @cmd: Must be SC_SCSI_RESET - * @arg: pointer to int containing SG_SCSI_RESET_{DEVICE,TARGET,BUS,HOST} - * possibly OR-ed with SG_SCSI_RESET_NO_ESCALATE - * @ndelay: file mode O_NDELAY flag +/* + * We can process a reset even when a device isn't fully operable. */ -int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd, - void __user *arg, int ndelay) +int scsi_ioctl_block_when_processing_errors(struct scsi_device *sdev, int cmd, + bool ndelay) { - /* The first set of iocts may be executed even if we're doing - * error processing, as long as the device was opened - * non-blocking */ - if (ndelay) { + if (cmd == SG_SCSI_RESET && ndelay) { if (scsi_host_in_recovery(sdev->host)) return -ENODEV; - } else if (!scsi_block_when_processing_errors(sdev)) - return -ENODEV; - - switch (cmd) { - case SG_SCSI_RESET: - return scsi_ioctl_reset(sdev, arg); + } else { + if (!scsi_block_when_processing_errors(sdev)) + return -ENODEV; } - return -ENODEV; + + return 0; } -EXPORT_SYMBOL(scsi_nonblockable_ioctl); +EXPORT_SYMBOL_GPL(scsi_ioctl_block_when_processing_errors); diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 242f9b177285..ddf763ad3b83 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1334,9 +1334,9 @@ static int sd_ioctl(struct block_device *bdev, fmode_t mode, * may try and take the device offline, in which case all further * access to the device is prohibited. */ - error = scsi_nonblockable_ioctl(sdp, cmd, p, - (mode & FMODE_NDELAY) != 0); - if (!scsi_block_when_processing_errors(sdp) || !error) + error = scsi_ioctl_block_when_processing_errors(sdp, cmd, + (mode & FMODE_NDELAY) != 0); + if (error) goto out; /* diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 7c55cacceb7c..b14f64cb9724 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1071,16 +1071,6 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) if (atomic_read(&sdp->detaching)) return -ENODEV; return put_user(sdp->device->host->hostt->emulated, ip); - case SG_SCSI_RESET: - if (atomic_read(&sdp->detaching)) - return -ENODEV; - if (filp->f_flags & O_NONBLOCK) { - if (scsi_host_in_recovery(sdp->device->host)) - return -EBUSY; - } else if (!scsi_block_when_processing_errors(sdp->device)) - return -EBUSY; - - return scsi_ioctl_reset(sdp->device, ip); case SCSI_IOCTL_SEND_COMMAND: if (atomic_read(&sdp->detaching)) return -ENODEV; @@ -1100,13 +1090,6 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) return result; sdp->sgdebug = (char) val; return 0; - case SCSI_IOCTL_GET_IDLUN: - case SCSI_IOCTL_GET_BUS_NUMBER: - case SCSI_IOCTL_PROBE_HOST: - case SG_GET_TRANSFORM: - if (atomic_read(&sdp->detaching)) - return -ENODEV; - return scsi_ioctl(sdp->device, cmd_in, p); case BLKSECTGET: return put_user(max_sectors_bytes(sdp->device->request_queue), ip); @@ -1122,11 +1105,25 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) return blk_trace_startstop(sdp->device->request_queue, 0); case BLKTRACETEARDOWN: return blk_trace_remove(sdp->device->request_queue); + case SCSI_IOCTL_GET_IDLUN: + case SCSI_IOCTL_GET_BUS_NUMBER: + case SCSI_IOCTL_PROBE_HOST: + case SG_GET_TRANSFORM: + case SG_SCSI_RESET: + if (atomic_read(&sdp->detaching)) + return -ENODEV; + break; default: if (read_only) return -EPERM; /* don't know so take safe approach */ - return scsi_ioctl(sdp->device, cmd_in, p); + break; } + + result = scsi_ioctl_block_when_processing_errors(sdp->device, + cmd_in, filp->f_flags & O_NDELAY); + if (result) + return result; + return scsi_ioctl(sdp->device, cmd_in, p); } #ifdef CONFIG_COMPAT diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 2de44cc58b1a..3d5399e341af 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -549,6 +549,11 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, mutex_lock(&sr_mutex); + ret = scsi_ioctl_block_when_processing_errors(sdev, cmd, + (mode & FMODE_NDELAY) != 0); + if (ret) + goto out; + /* * Send SCSI addressing ioctls directly to mid level, send other * ioctls to cdrom/block level. @@ -564,16 +569,6 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, if (ret != -ENOSYS) goto out; - /* - * ENODEV means that we didn't recognise the ioctl, or that we - * cannot execute it in the current device state. In either - * case fall through to scsi_ioctl, which will return ENDOEV again - * if it doesn't recognise the ioctl - */ - ret = scsi_nonblockable_ioctl(sdev, cmd, argp, - (mode & FMODE_NDELAY) != 0); - if (ret != -ENODEV) - goto out; ret = scsi_ioctl(sdev, cmd, argp); out: diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 63c35ed3c88d..7d2e036c75c1 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3376,11 +3376,10 @@ static long st_ioctl(struct file *file, unsigned int cmd_in, unsigned long arg) * may try and take the device offline, in which case all further * access to the device is prohibited. */ - retval = scsi_nonblockable_ioctl(STp->device, cmd_in, p, - file->f_flags & O_NDELAY); - if (!scsi_block_when_processing_errors(STp->device) || retval != -ENODEV) + retval = scsi_ioctl_block_when_processing_errors(STp->device, cmd_in, + file->f_flags & O_NDELAY); + if (retval) goto out; - retval = 0; cmd_type = _IOC_TYPE(cmd_in); cmd_nr = _IOC_NR(cmd_in); diff --git a/include/scsi/scsi_ioctl.h b/include/scsi/scsi_ioctl.h index b9006848b813..8d19d1d233c3 100644 --- a/include/scsi/scsi_ioctl.h +++ b/include/scsi/scsi_ioctl.h @@ -40,9 +40,9 @@ typedef struct scsi_fctargaddress { unsigned char host_wwn[8]; // include NULL term. } Scsi_FCTargAddress; +int scsi_ioctl_block_when_processing_errors(struct scsi_device *sdev, + int cmd, bool ndelay); extern int scsi_ioctl(struct scsi_device *, int, void __user *); -extern int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd, - void __user *arg, int ndelay); #endif /* __KERNEL__ */ #endif /* _SCSI_IOCTL_H */ -- cgit v1.2.3 From cd37743fc978a14fee75a4e662582e15d16038a3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 13 Sep 2014 19:59:51 -0700 Subject: scsi: use container_of to get at device handler private data Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke --- drivers/scsi/device_handler/scsi_dh_alua.c | 25 +++++++++---------------- drivers/scsi/device_handler/scsi_dh_emc.c | 24 ++++++++++-------------- drivers/scsi/device_handler/scsi_dh_hp_sw.c | 23 +++++++++-------------- drivers/scsi/device_handler/scsi_dh_rdac.c | 25 +++++++++---------------- include/scsi/scsi_device.h | 1 - 5 files changed, 37 insertions(+), 61 deletions(-) (limited to 'include') diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 9115c31f26e9..d9781045c4ee 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -62,6 +62,7 @@ #define ALUA_OPTIMIZE_STPG 1 struct alua_dh_data { + struct scsi_dh_data dh_data; int group_id; int rel_port; int tpgs; @@ -87,9 +88,7 @@ static int alua_check_sense(struct scsi_device *, struct scsi_sense_hdr *); static inline struct alua_dh_data *get_alua_data(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data = sdev->scsi_dh_data; - BUG_ON(scsi_dh_data == NULL); - return ((struct alua_dh_data *) scsi_dh_data->buf); + return container_of(sdev->scsi_dh_data, struct alua_dh_data, dh_data); } static int realloc_buffer(struct alua_dh_data *h, unsigned len) @@ -846,21 +845,18 @@ static struct scsi_device_handler alua_dh = { */ static int alua_bus_attach(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data; struct alua_dh_data *h; unsigned long flags; int err = SCSI_DH_OK; - scsi_dh_data = kzalloc(sizeof(*scsi_dh_data) - + sizeof(*h) , GFP_KERNEL); - if (!scsi_dh_data) { + h = kzalloc(sizeof(*h) , GFP_KERNEL); + if (!h) { sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", ALUA_DH_NAME); return -ENOMEM; } - scsi_dh_data->scsi_dh = &alua_dh; - h = (struct alua_dh_data *) scsi_dh_data->buf; + h->dh_data.scsi_dh = &alua_dh; h->tpgs = TPGS_MODE_UNINITIALIZED; h->state = TPGS_STATE_OPTIMIZED; h->group_id = -1; @@ -874,14 +870,14 @@ static int alua_bus_attach(struct scsi_device *sdev) goto failed; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = scsi_dh_data; + sdev->scsi_dh_data = &h->dh_data; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); sdev_printk(KERN_NOTICE, sdev, "%s: Attached\n", ALUA_DH_NAME); return 0; failed: - kfree(scsi_dh_data); + kfree(h); sdev_printk(KERN_ERR, sdev, "%s: not attached\n", ALUA_DH_NAME); return -EINVAL; } @@ -892,19 +888,16 @@ failed: */ static void alua_bus_detach(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data; - struct alua_dh_data *h; + struct alua_dh_data *h = get_alua_data(sdev); unsigned long flags; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - scsi_dh_data = sdev->scsi_dh_data; sdev->scsi_dh_data = NULL; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - h = (struct alua_dh_data *) scsi_dh_data->buf; if (h->buff && h->inq != h->buff) kfree(h->buff); - kfree(scsi_dh_data); + kfree(h); sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", ALUA_DH_NAME); } diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c index 153b4c3547a2..c2e26cdef21a 100644 --- a/drivers/scsi/device_handler/scsi_dh_emc.c +++ b/drivers/scsi/device_handler/scsi_dh_emc.c @@ -72,6 +72,7 @@ static const char * lun_state[] = }; struct clariion_dh_data { + struct scsi_dh_data dh_data; /* * Flags: * CLARIION_SHORT_TRESPASS @@ -116,9 +117,8 @@ struct clariion_dh_data { static inline struct clariion_dh_data *get_clariion_data(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data = sdev->scsi_dh_data; - BUG_ON(scsi_dh_data == NULL); - return ((struct clariion_dh_data *) scsi_dh_data->buf); + return container_of(sdev->scsi_dh_data, struct clariion_dh_data, + dh_data); } /* @@ -665,21 +665,18 @@ static struct scsi_device_handler clariion_dh = { static int clariion_bus_attach(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data; struct clariion_dh_data *h; unsigned long flags; int err; - scsi_dh_data = kzalloc(sizeof(*scsi_dh_data) - + sizeof(*h) , GFP_KERNEL); - if (!scsi_dh_data) { + h = kzalloc(sizeof(*h) , GFP_KERNEL); + if (!h) { sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", CLARIION_NAME); return -ENOMEM; } - scsi_dh_data->scsi_dh = &clariion_dh; - h = (struct clariion_dh_data *) scsi_dh_data->buf; + h->dh_data.scsi_dh = &clariion_dh; h->lun_state = CLARIION_LUN_UNINITIALIZED; h->default_sp = CLARIION_UNBOUND_LU; h->current_sp = CLARIION_UNBOUND_LU; @@ -693,7 +690,7 @@ static int clariion_bus_attach(struct scsi_device *sdev) goto failed; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = scsi_dh_data; + sdev->scsi_dh_data = &h->dh_data; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); sdev_printk(KERN_INFO, sdev, @@ -705,7 +702,7 @@ static int clariion_bus_attach(struct scsi_device *sdev) return 0; failed: - kfree(scsi_dh_data); + kfree(h); sdev_printk(KERN_ERR, sdev, "%s: not attached\n", CLARIION_NAME); return -EINVAL; @@ -713,18 +710,17 @@ failed: static void clariion_bus_detach(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data; + struct clariion_dh_data *h = get_clariion_data(sdev); unsigned long flags; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - scsi_dh_data = sdev->scsi_dh_data; sdev->scsi_dh_data = NULL; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", CLARIION_NAME); - kfree(scsi_dh_data); + kfree(h); } static int __init clariion_init(void) diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c index cf36557a1d4d..37dedcae0aa4 100644 --- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c +++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c @@ -38,6 +38,7 @@ #define HP_SW_PATH_PASSIVE 1 struct hp_sw_dh_data { + struct scsi_dh_data dh_data; unsigned char sense[SCSI_SENSE_BUFFERSIZE]; int path_state; int retries; @@ -51,9 +52,7 @@ static int hp_sw_start_stop(struct hp_sw_dh_data *); static inline struct hp_sw_dh_data *get_hp_sw_data(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data = sdev->scsi_dh_data; - BUG_ON(scsi_dh_data == NULL); - return ((struct hp_sw_dh_data *) scsi_dh_data->buf); + return container_of(sdev->scsi_dh_data, struct hp_sw_dh_data, dh_data); } /* @@ -354,21 +353,18 @@ static struct scsi_device_handler hp_sw_dh = { static int hp_sw_bus_attach(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data; struct hp_sw_dh_data *h; unsigned long flags; int ret; - scsi_dh_data = kzalloc(sizeof(*scsi_dh_data) - + sizeof(*h) , GFP_KERNEL); - if (!scsi_dh_data) { + h = kzalloc(sizeof(*h), GFP_KERNEL); + if (!h) { sdev_printk(KERN_ERR, sdev, "%s: Attach Failed\n", HP_SW_NAME); return -ENOMEM; } - scsi_dh_data->scsi_dh = &hp_sw_dh; - h = (struct hp_sw_dh_data *) scsi_dh_data->buf; + h->dh_data.scsi_dh = &hp_sw_dh; h->path_state = HP_SW_PATH_UNINITIALIZED; h->retries = HP_SW_RETRIES; h->sdev = sdev; @@ -378,7 +374,7 @@ static int hp_sw_bus_attach(struct scsi_device *sdev) goto failed; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = scsi_dh_data; + sdev->scsi_dh_data = &h->dh_data; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); sdev_printk(KERN_INFO, sdev, "%s: attached to %s path\n", @@ -388,7 +384,7 @@ static int hp_sw_bus_attach(struct scsi_device *sdev) return 0; failed: - kfree(scsi_dh_data); + kfree(h); sdev_printk(KERN_ERR, sdev, "%s: not attached\n", HP_SW_NAME); return -EINVAL; @@ -396,17 +392,16 @@ failed: static void hp_sw_bus_detach( struct scsi_device *sdev ) { - struct scsi_dh_data *scsi_dh_data; + struct hp_sw_dh_data *h = get_hp_sw_data(sdev); unsigned long flags; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - scsi_dh_data = sdev->scsi_dh_data; sdev->scsi_dh_data = NULL; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", HP_SW_NAME); - kfree(scsi_dh_data); + kfree(h); } static int __init hp_sw_init(void) diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index b850954c4e22..ef8caaaad76f 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -181,6 +181,7 @@ struct c2_inquiry { }; struct rdac_dh_data { + struct scsi_dh_data dh_data; struct rdac_controller *ctlr; #define UNINITIALIZED_LUN (1 << 8) unsigned lun; @@ -261,9 +262,7 @@ do { \ static inline struct rdac_dh_data *get_rdac_data(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data = sdev->scsi_dh_data; - BUG_ON(scsi_dh_data == NULL); - return ((struct rdac_dh_data *) scsi_dh_data->buf); + return container_of(sdev->scsi_dh_data, struct rdac_dh_data, dh_data); } static struct request *get_rdac_req(struct scsi_device *sdev, @@ -842,23 +841,20 @@ static struct scsi_device_handler rdac_dh = { static int rdac_bus_attach(struct scsi_device *sdev) { - struct scsi_dh_data *scsi_dh_data; struct rdac_dh_data *h; unsigned long flags; int err; char array_name[ARRAY_LABEL_LEN]; char array_id[UNIQUE_ID_LEN]; - scsi_dh_data = kzalloc(sizeof(*scsi_dh_data) - + sizeof(*h) , GFP_KERNEL); - if (!scsi_dh_data) { + h = kzalloc(sizeof(*h) , GFP_KERNEL); + if (!h) { sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", RDAC_NAME); return -ENOMEM; } - scsi_dh_data->scsi_dh = &rdac_dh; - h = (struct rdac_dh_data *) scsi_dh_data->buf; + h->dh_data.scsi_dh = &rdac_dh; h->lun = UNINITIALIZED_LUN; h->state = RDAC_STATE_ACTIVE; @@ -879,7 +875,7 @@ static int rdac_bus_attach(struct scsi_device *sdev) goto clean_ctlr; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = scsi_dh_data; + sdev->scsi_dh_data = &h->dh_data; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); sdev_printk(KERN_NOTICE, sdev, @@ -895,7 +891,7 @@ clean_ctlr: spin_unlock(&list_lock); failed: - kfree(scsi_dh_data); + kfree(h); sdev_printk(KERN_ERR, sdev, "%s: not attached\n", RDAC_NAME); return -EINVAL; @@ -903,12 +899,9 @@ failed: static void rdac_bus_detach( struct scsi_device *sdev ) { - struct scsi_dh_data *scsi_dh_data; - struct rdac_dh_data *h; + struct rdac_dh_data *h = get_rdac_data(sdev); unsigned long flags; - scsi_dh_data = sdev->scsi_dh_data; - h = (struct rdac_dh_data *) scsi_dh_data->buf; if (h->ctlr && h->ctlr->ms_queued) flush_workqueue(kmpath_rdacd); @@ -920,7 +913,7 @@ static void rdac_bus_detach( struct scsi_device *sdev ) if (h->ctlr) kref_put(&h->ctlr->kref, release_controller); spin_unlock(&list_lock); - kfree(scsi_dh_data); + kfree(h); sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", RDAC_NAME); } diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 0b18a097c1ba..04cd5ad8289e 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -228,7 +228,6 @@ struct scsi_dh_data { struct scsi_device_handler *scsi_dh; struct scsi_device *sdev; struct kref kref; - char buf[0]; }; #define to_scsi_device(d) \ -- cgit v1.2.3 From a64d01dcf8440846f3077a436344f99313c1396c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 13 Sep 2014 20:05:04 -0700 Subject: scsi: remove struct scsi_dh_devlist All drivers now do their own matching, so there is no more need to expose a device list as part of the interface. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke --- drivers/scsi/device_handler/scsi_dh_emc.c | 6 ++++-- drivers/scsi/device_handler/scsi_dh_hp_sw.c | 6 ++++-- drivers/scsi/device_handler/scsi_dh_rdac.c | 6 ++++-- include/scsi/scsi_device.h | 6 ------ 4 files changed, 12 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c index c2e26cdef21a..800deb75a111 100644 --- a/drivers/scsi/device_handler/scsi_dh_emc.c +++ b/drivers/scsi/device_handler/scsi_dh_emc.c @@ -622,7 +622,10 @@ done: return result; } -static const struct scsi_dh_devlist clariion_dev_list[] = { +static const struct { + char *vendor; + char *model; +} clariion_dev_list[] = { {"DGC", "RAID"}, {"DGC", "DISK"}, {"DGC", "VRAID"}, @@ -653,7 +656,6 @@ static void clariion_bus_detach(struct scsi_device *sdev); static struct scsi_device_handler clariion_dh = { .name = CLARIION_NAME, .module = THIS_MODULE, - .devlist = clariion_dev_list, .attach = clariion_bus_attach, .detach = clariion_bus_detach, .check_sense = clariion_check_sense, diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c index 37dedcae0aa4..471ffd19f2c5 100644 --- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c +++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c @@ -311,7 +311,10 @@ static int hp_sw_activate(struct scsi_device *sdev, return 0; } -static const struct scsi_dh_devlist hp_sw_dh_data_list[] = { +static const struct { + char *vendor; + char *model; +} hp_sw_dh_data_list[] = { {"COMPAQ", "MSA1000 VOLUME"}, {"COMPAQ", "HSV110"}, {"HP", "HSV100"}, @@ -343,7 +346,6 @@ static void hp_sw_bus_detach(struct scsi_device *sdev); static struct scsi_device_handler hp_sw_dh = { .name = HP_SW_NAME, .module = THIS_MODULE, - .devlist = hp_sw_dh_data_list, .attach = hp_sw_bus_attach, .detach = hp_sw_bus_detach, .activate = hp_sw_activate, diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index ef8caaaad76f..8b09528613d2 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -778,7 +778,10 @@ static int rdac_check_sense(struct scsi_device *sdev, return SCSI_RETURN_NOT_HANDLED; } -static const struct scsi_dh_devlist rdac_dev_list[] = { +static const struct { + char *vendor; + char *model; +} rdac_dev_list[] = { {"IBM", "1722"}, {"IBM", "1724"}, {"IBM", "1726"}, @@ -830,7 +833,6 @@ static void rdac_bus_detach(struct scsi_device *sdev); static struct scsi_device_handler rdac_dh = { .name = RDAC_NAME, .module = THIS_MODULE, - .devlist = rdac_dev_list, .prep_fn = rdac_prep_fn, .check_sense = rdac_check_sense, .attach = rdac_bus_attach, diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 04cd5ad8289e..2601c97fd8b9 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -201,11 +201,6 @@ struct scsi_device { unsigned long sdev_data[0]; } __attribute__((aligned(sizeof(unsigned long)))); -struct scsi_dh_devlist { - char *vendor; - char *model; -}; - typedef void (*activate_complete)(void *, int); struct scsi_device_handler { /* Used by the infrastructure */ @@ -214,7 +209,6 @@ struct scsi_device_handler { /* Filled by the hardware handler */ struct module *module; const char *name; - const struct scsi_dh_devlist *devlist; int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *); int (*attach)(struct scsi_device *); void (*detach)(struct scsi_device *); -- cgit v1.2.3 From 1d5203284d8acbdfdf9b478d434450b34f338f28 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 14 Sep 2014 11:08:21 -0700 Subject: scsi: handle more device handler setup/teardown in common code Move all code to set up and tear down sdev->scsi_dh_data to common code. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke --- drivers/scsi/device_handler/scsi_dh.c | 29 ++++++++++---- drivers/scsi/device_handler/scsi_dh_alua.c | 59 ++++++++++------------------- drivers/scsi/device_handler/scsi_dh_emc.c | 58 +++++++++------------------- drivers/scsi/device_handler/scsi_dh_hp_sw.c | 54 ++++++++------------------ drivers/scsi/device_handler/scsi_dh_rdac.c | 53 ++++++++------------------ include/scsi/scsi_device.h | 2 +- 6 files changed, 88 insertions(+), 167 deletions(-) (limited to 'include') diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c index d8a8aac2c3db..1dba62c5cf6a 100644 --- a/drivers/scsi/device_handler/scsi_dh.c +++ b/drivers/scsi/device_handler/scsi_dh.c @@ -98,7 +98,7 @@ device_handler_match(struct scsi_device_handler *scsi_dh, static int scsi_dh_handler_attach(struct scsi_device *sdev, struct scsi_device_handler *scsi_dh) { - int err = 0; + struct scsi_dh_data *d; if (sdev->scsi_dh_data) { if (sdev->scsi_dh_data->scsi_dh != scsi_dh) @@ -111,15 +111,22 @@ static int scsi_dh_handler_attach(struct scsi_device *sdev, if (!try_module_get(scsi_dh->module)) return -EINVAL; - err = scsi_dh->attach(sdev); - if (err) { + d = scsi_dh->attach(sdev); + if (IS_ERR(d)) { + sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%ld)\n", + scsi_dh->name, PTR_ERR(d)); module_put(scsi_dh->module); - return err; + return PTR_ERR(d); } - kref_init(&sdev->scsi_dh_data->kref); - sdev->scsi_dh_data->sdev = sdev; - return err; + d->scsi_dh = scsi_dh; + kref_init(&d->kref); + d->sdev = sdev; + + spin_lock_irq(sdev->request_queue->queue_lock); + sdev->scsi_dh_data = d; + spin_unlock_irq(sdev->request_queue->queue_lock); + return 0; } static void __detach_handler (struct kref *kref) @@ -127,8 +134,14 @@ static void __detach_handler (struct kref *kref) struct scsi_dh_data *scsi_dh_data = container_of(kref, struct scsi_dh_data, kref); struct scsi_device_handler *scsi_dh = scsi_dh_data->scsi_dh; + struct scsi_device *sdev = scsi_dh_data->sdev; + + spin_lock_irq(sdev->request_queue->queue_lock); + sdev->scsi_dh_data = NULL; + spin_unlock_irq(sdev->request_queue->queue_lock); - scsi_dh->detach(scsi_dh_data->sdev); + scsi_dh->detach(sdev); + sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", scsi_dh->name); module_put(scsi_dh->module); } diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index d9781045c4ee..854b568b9931 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -824,39 +824,18 @@ static bool alua_match(struct scsi_device *sdev) return (scsi_device_tpgs(sdev) != 0); } -static int alua_bus_attach(struct scsi_device *sdev); -static void alua_bus_detach(struct scsi_device *sdev); - -static struct scsi_device_handler alua_dh = { - .name = ALUA_DH_NAME, - .module = THIS_MODULE, - .attach = alua_bus_attach, - .detach = alua_bus_detach, - .prep_fn = alua_prep_fn, - .check_sense = alua_check_sense, - .activate = alua_activate, - .set_params = alua_set_params, - .match = alua_match, -}; - /* * alua_bus_attach - Attach device handler * @sdev: device to be attached to */ -static int alua_bus_attach(struct scsi_device *sdev) +static struct scsi_dh_data *alua_bus_attach(struct scsi_device *sdev) { struct alua_dh_data *h; - unsigned long flags; - int err = SCSI_DH_OK; + int err; h = kzalloc(sizeof(*h) , GFP_KERNEL); - if (!h) { - sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", - ALUA_DH_NAME); - return -ENOMEM; - } - - h->dh_data.scsi_dh = &alua_dh; + if (!h) + return ERR_PTR(-ENOMEM); h->tpgs = TPGS_MODE_UNINITIALIZED; h->state = TPGS_STATE_OPTIMIZED; h->group_id = -1; @@ -866,20 +845,14 @@ static int alua_bus_attach(struct scsi_device *sdev) h->sdev = sdev; err = alua_initialize(sdev, h); - if ((err != SCSI_DH_OK) && (err != SCSI_DH_DEV_OFFLINED)) + if (err != SCSI_DH_OK && err != SCSI_DH_DEV_OFFLINED) goto failed; - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = &h->dh_data; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); sdev_printk(KERN_NOTICE, sdev, "%s: Attached\n", ALUA_DH_NAME); - - return 0; - + return &h->dh_data; failed: kfree(h); - sdev_printk(KERN_ERR, sdev, "%s: not attached\n", ALUA_DH_NAME); - return -EINVAL; + return ERR_PTR(-EINVAL); } /* @@ -889,18 +862,24 @@ failed: static void alua_bus_detach(struct scsi_device *sdev) { struct alua_dh_data *h = get_alua_data(sdev); - unsigned long flags; - - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = NULL; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); if (h->buff && h->inq != h->buff) kfree(h->buff); kfree(h); - sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", ALUA_DH_NAME); } +static struct scsi_device_handler alua_dh = { + .name = ALUA_DH_NAME, + .module = THIS_MODULE, + .attach = alua_bus_attach, + .detach = alua_bus_detach, + .prep_fn = alua_prep_fn, + .check_sense = alua_check_sense, + .activate = alua_activate, + .set_params = alua_set_params, + .match = alua_match, +}; + static int __init alua_init(void) { int r; diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c index 800deb75a111..6ed1caadbc6a 100644 --- a/drivers/scsi/device_handler/scsi_dh_emc.c +++ b/drivers/scsi/device_handler/scsi_dh_emc.c @@ -650,35 +650,14 @@ static bool clariion_match(struct scsi_device *sdev) return false; } -static int clariion_bus_attach(struct scsi_device *sdev); -static void clariion_bus_detach(struct scsi_device *sdev); - -static struct scsi_device_handler clariion_dh = { - .name = CLARIION_NAME, - .module = THIS_MODULE, - .attach = clariion_bus_attach, - .detach = clariion_bus_detach, - .check_sense = clariion_check_sense, - .activate = clariion_activate, - .prep_fn = clariion_prep_fn, - .set_params = clariion_set_params, - .match = clariion_match, -}; - -static int clariion_bus_attach(struct scsi_device *sdev) +static struct scsi_dh_data *clariion_bus_attach(struct scsi_device *sdev) { struct clariion_dh_data *h; - unsigned long flags; int err; h = kzalloc(sizeof(*h) , GFP_KERNEL); - if (!h) { - sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", - CLARIION_NAME); - return -ENOMEM; - } - - h->dh_data.scsi_dh = &clariion_dh; + if (!h) + return ERR_PTR(-ENOMEM); h->lun_state = CLARIION_LUN_UNINITIALIZED; h->default_sp = CLARIION_UNBOUND_LU; h->current_sp = CLARIION_UNBOUND_LU; @@ -691,40 +670,37 @@ static int clariion_bus_attach(struct scsi_device *sdev) if (err != SCSI_DH_OK) goto failed; - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = &h->dh_data; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - sdev_printk(KERN_INFO, sdev, "%s: connected to SP %c Port %d (%s, default SP %c)\n", CLARIION_NAME, h->current_sp + 'A', h->port, lun_state[h->lun_state], h->default_sp + 'A'); - - return 0; + return &h->dh_data; failed: kfree(h); - sdev_printk(KERN_ERR, sdev, "%s: not attached\n", - CLARIION_NAME); - return -EINVAL; + return ERR_PTR(-EINVAL); } static void clariion_bus_detach(struct scsi_device *sdev) { struct clariion_dh_data *h = get_clariion_data(sdev); - unsigned long flags; - - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = NULL; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - - sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", - CLARIION_NAME); kfree(h); } +static struct scsi_device_handler clariion_dh = { + .name = CLARIION_NAME, + .module = THIS_MODULE, + .attach = clariion_bus_attach, + .detach = clariion_bus_detach, + .check_sense = clariion_check_sense, + .activate = clariion_activate, + .prep_fn = clariion_prep_fn, + .set_params = clariion_set_params, + .match = clariion_match, +}; + static int __init clariion_init(void) { int r; diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c index 471ffd19f2c5..485d99544a15 100644 --- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c +++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c @@ -340,33 +340,14 @@ static bool hp_sw_match(struct scsi_device *sdev) return false; } -static int hp_sw_bus_attach(struct scsi_device *sdev); -static void hp_sw_bus_detach(struct scsi_device *sdev); - -static struct scsi_device_handler hp_sw_dh = { - .name = HP_SW_NAME, - .module = THIS_MODULE, - .attach = hp_sw_bus_attach, - .detach = hp_sw_bus_detach, - .activate = hp_sw_activate, - .prep_fn = hp_sw_prep_fn, - .match = hp_sw_match, -}; - -static int hp_sw_bus_attach(struct scsi_device *sdev) +static struct scsi_dh_data *hp_sw_bus_attach(struct scsi_device *sdev) { struct hp_sw_dh_data *h; - unsigned long flags; int ret; h = kzalloc(sizeof(*h), GFP_KERNEL); - if (!h) { - sdev_printk(KERN_ERR, sdev, "%s: Attach Failed\n", - HP_SW_NAME); - return -ENOMEM; - } - - h->dh_data.scsi_dh = &hp_sw_dh; + if (!h) + return ERR_PTR(-ENOMEM); h->path_state = HP_SW_PATH_UNINITIALIZED; h->retries = HP_SW_RETRIES; h->sdev = sdev; @@ -375,37 +356,32 @@ static int hp_sw_bus_attach(struct scsi_device *sdev) if (ret != SCSI_DH_OK || h->path_state == HP_SW_PATH_UNINITIALIZED) goto failed; - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = &h->dh_data; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - sdev_printk(KERN_INFO, sdev, "%s: attached to %s path\n", HP_SW_NAME, h->path_state == HP_SW_PATH_ACTIVE? "active":"passive"); - - return 0; - + return &h->dh_data; failed: kfree(h); - sdev_printk(KERN_ERR, sdev, "%s: not attached\n", - HP_SW_NAME); - return -EINVAL; + return ERR_PTR(-EINVAL); } static void hp_sw_bus_detach( struct scsi_device *sdev ) { struct hp_sw_dh_data *h = get_hp_sw_data(sdev); - unsigned long flags; - - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = NULL; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - - sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", HP_SW_NAME); kfree(h); } +static struct scsi_device_handler hp_sw_dh = { + .name = HP_SW_NAME, + .module = THIS_MODULE, + .attach = hp_sw_bus_attach, + .detach = hp_sw_bus_detach, + .activate = hp_sw_activate, + .prep_fn = hp_sw_prep_fn, + .match = hp_sw_match, +}; + static int __init hp_sw_init(void) { return scsi_register_device_handler(&hp_sw_dh); diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index 8b09528613d2..b46ace3d4bf0 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -827,36 +827,16 @@ static bool rdac_match(struct scsi_device *sdev) return false; } -static int rdac_bus_attach(struct scsi_device *sdev); -static void rdac_bus_detach(struct scsi_device *sdev); - -static struct scsi_device_handler rdac_dh = { - .name = RDAC_NAME, - .module = THIS_MODULE, - .prep_fn = rdac_prep_fn, - .check_sense = rdac_check_sense, - .attach = rdac_bus_attach, - .detach = rdac_bus_detach, - .activate = rdac_activate, - .match = rdac_match, -}; - -static int rdac_bus_attach(struct scsi_device *sdev) +static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev) { struct rdac_dh_data *h; - unsigned long flags; int err; char array_name[ARRAY_LABEL_LEN]; char array_id[UNIQUE_ID_LEN]; h = kzalloc(sizeof(*h) , GFP_KERNEL); - if (!h) { - sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", - RDAC_NAME); - return -ENOMEM; - } - - h->dh_data.scsi_dh = &rdac_dh; + if (!h) + return ERR_PTR(-ENOMEM); h->lun = UNINITIALIZED_LUN; h->state = RDAC_STATE_ACTIVE; @@ -876,16 +856,12 @@ static int rdac_bus_attach(struct scsi_device *sdev) if (err != SCSI_DH_OK) goto clean_ctlr; - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = &h->dh_data; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - sdev_printk(KERN_NOTICE, sdev, "%s: LUN %d (%s) (%s)\n", RDAC_NAME, h->lun, mode[(int)h->mode], lun_state[(int)h->lun_state]); - return 0; + return &h->dh_data; clean_ctlr: spin_lock(&list_lock); @@ -894,32 +870,33 @@ clean_ctlr: failed: kfree(h); - sdev_printk(KERN_ERR, sdev, "%s: not attached\n", - RDAC_NAME); - return -EINVAL; + return ERR_PTR(-EINVAL); } static void rdac_bus_detach( struct scsi_device *sdev ) { struct rdac_dh_data *h = get_rdac_data(sdev); - unsigned long flags; if (h->ctlr && h->ctlr->ms_queued) flush_workqueue(kmpath_rdacd); - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = NULL; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - spin_lock(&list_lock); if (h->ctlr) kref_put(&h->ctlr->kref, release_controller); spin_unlock(&list_lock); kfree(h); - sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", RDAC_NAME); } - +static struct scsi_device_handler rdac_dh = { + .name = RDAC_NAME, + .module = THIS_MODULE, + .prep_fn = rdac_prep_fn, + .check_sense = rdac_check_sense, + .attach = rdac_bus_attach, + .detach = rdac_bus_detach, + .activate = rdac_activate, + .match = rdac_match, +}; static int __init rdac_init(void) { diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 2601c97fd8b9..50d47e6e89d1 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -210,7 +210,7 @@ struct scsi_device_handler { struct module *module; const char *name; int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *); - int (*attach)(struct scsi_device *); + struct scsi_dh_data *(*attach)(struct scsi_device *); void (*detach)(struct scsi_device *); int (*activate)(struct scsi_device *, activate_complete, void *); int (*prep_fn)(struct scsi_device *, struct request *); -- cgit v1.2.3 From a62182f338b39a22035531c6afc0a8d2928b1df2 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 2 Oct 2014 14:39:55 +0200 Subject: scsi: provide a generic change_queue_type method Most drivers use exactly the same implementation, so provide it as a library function. Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche Reviewed-by: Mike Christie Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke --- drivers/infiniband/ulp/srp/ib_srp.c | 24 +----------------------- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +- drivers/scsi/esas2r/esas2r.h | 1 - drivers/scsi/esas2r/esas2r_main.c | 20 +------------------- drivers/scsi/fcoe/fcoe.c | 2 +- drivers/scsi/fnic/fnic_main.c | 2 +- drivers/scsi/ibmvscsi/ibmvfc.c | 25 +------------------------ drivers/scsi/ipr.c | 20 +++----------------- drivers/scsi/libfc/fc_fcp.c | 20 -------------------- drivers/scsi/lpfc/lpfc_scsi.c | 24 ++---------------------- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 24 +----------------------- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 25 +------------------------ drivers/scsi/pmcraid.c | 14 ++++---------- drivers/scsi/qla2xxx/qla_os.c | 18 +----------------- drivers/scsi/scsi.c | 20 ++++++++++++++++++++ drivers/scsi/scsi_debug.c | 9 +-------- drivers/target/loopback/tcm_loop.c | 17 +---------------- include/scsi/libfc.h | 1 - include/scsi/scsi_tcq.h | 2 ++ 19 files changed, 42 insertions(+), 228 deletions(-) (limited to 'include') diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 62d2a18e1b41..51670d75ab78 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2258,28 +2258,6 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event) return 0; } -/** - * srp_change_queue_type - changing device queue tag type - * @sdev: scsi device struct - * @tag_type: requested tag type - * - * Returns queue tag type. - */ -static int -srp_change_queue_type(struct scsi_device *sdev, int tag_type) -{ - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - - return tag_type; -} - /** * srp_change_queue_depth - setting device queue depth * @sdev: scsi device struct @@ -2600,7 +2578,7 @@ static struct scsi_host_template srp_template = { .info = srp_target_info, .queuecommand = srp_queuecommand, .change_queue_depth = srp_change_queue_depth, - .change_queue_type = srp_change_queue_type, + .change_queue_type = scsi_change_queue_type, .eh_abort_handler = srp_abort, .eh_device_reset_handler = srp_reset_device, .eh_host_reset_handler = srp_reset_host, diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 79e5c94107a9..3c6dc8abc776 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2784,7 +2784,7 @@ static struct scsi_host_template bnx2fc_shost_template = { .eh_host_reset_handler = fc_eh_host_reset, .slave_alloc = fc_slave_alloc, .change_queue_depth = fc_change_queue_depth, - .change_queue_type = fc_change_queue_type, + .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h index 3fd305d6b67d..20ab211983f2 100644 --- a/drivers/scsi/esas2r/esas2r.h +++ b/drivers/scsi/esas2r/esas2r.h @@ -976,7 +976,6 @@ int esas2r_slave_alloc(struct scsi_device *dev); int esas2r_slave_configure(struct scsi_device *dev); void esas2r_slave_destroy(struct scsi_device *dev); int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason); -int esas2r_change_queue_type(struct scsi_device *dev, int type); long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); /* SCSI error handler (eh) functions */ diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index 45aa684f8b74..be09c628d034 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -258,7 +258,7 @@ static struct scsi_host_template driver_template = { .slave_alloc = esas2r_slave_alloc, .slave_destroy = esas2r_slave_destroy, .change_queue_depth = esas2r_change_queue_depth, - .change_queue_type = esas2r_change_queue_type, + .change_queue_type = scsi_change_queue_type, .max_sectors = 0xFFFF, }; @@ -1268,24 +1268,6 @@ int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason) return dev->queue_depth; } -int esas2r_change_queue_type(struct scsi_device *dev, int type) -{ - esas2r_log(ESAS2R_LOG_INFO, "change_queue_type %p, %d", dev, type); - - if (dev->tagged_supported) { - scsi_set_tag_type(dev, type); - - if (type) - scsi_activate_tcq(dev, dev->queue_depth); - else - scsi_deactivate_tcq(dev, dev->queue_depth); - } else { - type = 0; - } - - return type; -} - int esas2r_slave_alloc(struct scsi_device *dev) { return 0; diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 4a8ac7d8c76b..86956cc3448e 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -281,7 +281,7 @@ static struct scsi_host_template fcoe_shost_template = { .eh_host_reset_handler = fc_eh_host_reset, .slave_alloc = fc_slave_alloc, .change_queue_depth = fc_change_queue_depth, - .change_queue_type = fc_change_queue_type, + .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, .can_queue = FCOE_MAX_OUTSTANDING_COMMANDS, diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 8c56fdc3a456..8581ce662cf0 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -113,7 +113,7 @@ static struct scsi_host_template fnic_host_template = { .eh_host_reset_handler = fnic_host_reset, .slave_alloc = fnic_slave_alloc, .change_queue_depth = fc_change_queue_depth, - .change_queue_type = fc_change_queue_type, + .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, .can_queue = FNIC_DFLT_IO_REQ, diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 598c42cba5a8..48d19a3256ce 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2929,29 +2929,6 @@ static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth, return sdev->queue_depth; } -/** - * ibmvfc_change_queue_type - Change the device's queue type - * @sdev: scsi device struct - * @tag_type: type of tags to use - * - * Return value: - * actual queue type set - **/ -static int ibmvfc_change_queue_type(struct scsi_device *sdev, int tag_type) -{ - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - - return tag_type; -} - static ssize_t ibmvfc_show_host_partition_name(struct device *dev, struct device_attribute *attr, char *buf) { @@ -3133,7 +3110,7 @@ static struct scsi_host_template driver_template = { .target_alloc = ibmvfc_target_alloc, .scan_finished = ibmvfc_scan_finished, .change_queue_depth = ibmvfc_change_queue_depth, - .change_queue_type = ibmvfc_change_queue_type, + .change_queue_type = scsi_change_queue_type, .cmd_per_lun = 16, .can_queue = IBMVFC_MAX_REQUESTS_DEFAULT, .this_id = -1, diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 2a9578c116b7..3d689f6023e9 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4364,24 +4364,10 @@ static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); res = (struct ipr_resource_entry *)sdev->hostdata; - - if (res) { - if (ipr_is_gscsi(res) && sdev->tagged_supported) { - /* - * We don't bother quiescing the device here since the - * adapter firmware does it for us. - */ - scsi_set_tag_type(sdev, tag_type); - - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - } else + if (res && ipr_is_gscsi(res)) + tag_type = scsi_change_queue_type(sdev, tag_type); + else tag_type = 0; - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); return tag_type; } diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 1d7e76e8b447..f3043ad1f35d 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2195,26 +2195,6 @@ int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) } EXPORT_SYMBOL(fc_change_queue_depth); -/** - * fc_change_queue_type() - Change a device's queue type - * @sdev: The SCSI device whose queue depth is to change - * @tag_type: Identifier for queue type - */ -int fc_change_queue_type(struct scsi_device *sdev, int tag_type) -{ - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - - return tag_type; -} -EXPORT_SYMBOL(fc_change_queue_type); - /** * fc_fcp_destory() - Tear down the FCP layer for a given local port * @lport: The local port that no longer needs the FCP layer diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index b99399fe2548..2896e52ac6cd 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -344,26 +344,6 @@ lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) return sdev->queue_depth; } -/** - * lpfc_change_queue_type() - Change a device's scsi tag queuing type - * @sdev: Pointer the scsi device whose queue depth is to change - * @tag_type: Identifier for queue tag type - */ -static int -lpfc_change_queue_type(struct scsi_device *sdev, int tag_type) -{ - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - - return tag_type; -} - /** * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread * @phba: The Hba for which this call is being executed. @@ -6019,7 +5999,7 @@ struct scsi_host_template lpfc_template = { .max_sectors = 0xFFFF, .vendor_id = LPFC_NL_VENDOR_ID, .change_queue_depth = lpfc_change_queue_depth, - .change_queue_type = lpfc_change_queue_type, + .change_queue_type = scsi_change_queue_type, }; struct scsi_host_template lpfc_vport_template = { @@ -6042,5 +6022,5 @@ struct scsi_host_template lpfc_vport_template = { .shost_attrs = lpfc_vport_attrs, .max_sectors = 0xFFFF, .change_queue_depth = lpfc_change_queue_depth, - .change_queue_type = lpfc_change_queue_type, + .change_queue_type = scsi_change_queue_type, }; diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index c80ed0482649..ec36b91c880f 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1254,28 +1254,6 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) return sdev->queue_depth; } -/** - * _scsih_change_queue_type - changing device queue tag type - * @sdev: scsi device struct - * @tag_type: requested tag type - * - * Returns queue tag type. - */ -static int -_scsih_change_queue_type(struct scsi_device *sdev, int tag_type) -{ - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - - return tag_type; -} - /** * _scsih_target_alloc - target add routine * @starget: scsi target struct @@ -7653,7 +7631,7 @@ static struct scsi_host_template scsih_driver_template = { .scan_finished = _scsih_scan_finished, .scan_start = _scsih_scan_start, .change_queue_depth = _scsih_change_queue_depth, - .change_queue_type = _scsih_change_queue_type, + .change_queue_type = scsi_change_queue_type, .eh_abort_handler = _scsih_abort, .eh_device_reset_handler = _scsih_dev_reset, .eh_target_reset_handler = _scsih_target_reset, diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 857276b8880f..52464ace282b 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1122,29 +1122,6 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) return sdev->queue_depth; } -/** - * _scsih_change_queue_type - changing device queue tag type - * @sdev: scsi device struct - * @tag_type: requested tag type - * - * Returns queue tag type. - */ -static int -_scsih_change_queue_type(struct scsi_device *sdev, int tag_type) -{ - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - - return tag_type; -} - - /** * _scsih_target_alloc - target add routine * @starget: scsi target struct @@ -7284,7 +7261,7 @@ static struct scsi_host_template scsih_driver_template = { .scan_finished = _scsih_scan_finished, .scan_start = _scsih_scan_start, .change_queue_depth = _scsih_change_queue_depth, - .change_queue_type = _scsih_change_queue_type, + .change_queue_type = scsi_change_queue_type, .eh_abort_handler = _scsih_abort, .eh_device_reset_handler = _scsih_dev_reset, .eh_target_reset_handler = _scsih_target_reset, diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index bcb64eb1387f..2233ed6b89e3 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -321,16 +321,10 @@ static int pmcraid_change_queue_type(struct scsi_device *scsi_dev, int tag) struct pmcraid_resource_entry *res; res = (struct pmcraid_resource_entry *)scsi_dev->hostdata; - - if ((res) && scsi_dev->tagged_supported && - (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) { - scsi_set_tag_type(scsi_dev, tag); - - if (tag) - scsi_activate_tcq(scsi_dev, scsi_dev->queue_depth); - else - scsi_deactivate_tcq(scsi_dev, scsi_dev->queue_depth); - } else + if (res && scsi_dev->tagged_supported && + (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) + tag = scsi_change_queue_type(scsi_dev, tag); + else tag = 0; return tag; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index db3dbd999cb6..5e755747e073 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -237,7 +237,6 @@ static int qla2xxx_eh_bus_reset(struct scsi_cmnd *); static int qla2xxx_eh_host_reset(struct scsi_cmnd *); static int qla2x00_change_queue_depth(struct scsi_device *, int, int); -static int qla2x00_change_queue_type(struct scsi_device *, int); static void qla2x00_clear_drv_active(struct qla_hw_data *); static void qla2x00_free_device(scsi_qla_host_t *); static void qla83xx_disable_laser(scsi_qla_host_t *vha); @@ -260,7 +259,7 @@ struct scsi_host_template qla2xxx_driver_template = { .scan_finished = qla2xxx_scan_finished, .scan_start = qla2xxx_scan_start, .change_queue_depth = qla2x00_change_queue_depth, - .change_queue_type = qla2x00_change_queue_type, + .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, @@ -1473,21 +1472,6 @@ qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) return sdev->queue_depth; } -static int -qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type) -{ - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; - - return tag_type; -} - /** * qla2x00_config_dma_addressing() - Configure OS DMA addressing method. * @ha: HA context diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index bc52bbd97381..9baeff03dd9b 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -866,6 +866,26 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth) } EXPORT_SYMBOL(scsi_track_queue_full); +/** + * scsi_change_queue_type() - Change a device's queue type + * @sdev: The SCSI device whose queue depth is to change + * @tag_type: Identifier for queue type + */ +int scsi_change_queue_type(struct scsi_device *sdev, int tag_type) +{ + if (sdev->tagged_supported) { + scsi_set_tag_type(sdev, tag_type); + if (tag_type) + scsi_activate_tcq(sdev, sdev->queue_depth); + else + scsi_deactivate_tcq(sdev, sdev->queue_depth); + } else + tag_type = 0; + + return tag_type; +} +EXPORT_SYMBOL(scsi_change_queue_type); + /** * scsi_vpd_inquiry - Request a device provide us with a VPD page * @sdev: The device to ask diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 238e06f13b8a..7bcace2cdd53 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -4532,14 +4532,7 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) static int sdebug_change_qtype(struct scsi_device *sdev, int qtype) { - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, qtype); - if (qtype) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - qtype = 0; + qtype = scsi_change_queue_type(sdev, qtype); if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) { const char *cp; diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index ab3ab27d49b7..3b9c76835b45 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -135,21 +135,6 @@ static int tcm_loop_change_queue_depth( return sdev->queue_depth; } -static int tcm_loop_change_queue_type(struct scsi_device *sdev, int tag) -{ - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag); - - if (tag) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag = 0; - - return tag; -} - /* * Locate the SAM Task Attr from struct scsi_cmnd * */ @@ -451,7 +436,7 @@ static struct scsi_host_template tcm_loop_driver_template = { .name = "TCM_Loopback", .queuecommand = tcm_loop_queuecommand, .change_queue_depth = tcm_loop_change_queue_depth, - .change_queue_type = tcm_loop_change_queue_type, + .change_queue_type = scsi_change_queue_type, .eh_abort_handler = tcm_loop_abort_task, .eh_device_reset_handler = tcm_loop_device_reset, .eh_target_reset_handler = tcm_loop_target_reset, diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index 52beadf9a29b..2e0cf568a9c1 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -1106,7 +1106,6 @@ int fc_eh_device_reset(struct scsi_cmnd *); int fc_eh_host_reset(struct scsi_cmnd *); int fc_slave_alloc(struct scsi_device *); int fc_change_queue_depth(struct scsi_device *, int qdepth, int reason); -int fc_change_queue_type(struct scsi_device *, int tag_type); /* * ELS/CT interface diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index 7529c6acc231..1712dab6e00e 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -16,6 +16,8 @@ #ifdef CONFIG_BLOCK +int scsi_change_queue_type(struct scsi_device *sdev, int tag_type); + /** * scsi_get_tag_type - get the type of tag the device supports * @sdev: the scsi device -- cgit v1.2.3 From 125c99bc8b6b108d251169a86324a7ed3c6f3cce Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 3 Nov 2014 12:47:47 +0100 Subject: scsi: add new scsi-command flag for tagged commands Currently scsi piggy backs on the block layer to define the concept of a tagged command. But we want to be able to have block-level host-wide tags assigned even for untagged commands like the initial INQUIRY, so add a new SCSI-level flag for commands that are tagged at the scsi level, so that even commands without that set can have tags assigned to them. Note that this alredy is the case for the blk-mq code path, and this just lets the old path catch up with it. We also set this flag based upon sdev->simple_tags instead of the block queue flag, so that it is entirely independent of the block layer tagging, and thus always correct even if a driver doesn't use block level tagging yet. Also remove the old blk_rq_tagged; it was only used by SCSI drivers, and removing it forces them to look for the proper replacement. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke --- Documentation/block/biodoc.txt | 4 ---- block/blk-core.c | 4 ++-- drivers/scsi/53c700.c | 6 +++--- drivers/scsi/aic7xxx/aic7xxx_osm.c | 2 +- drivers/scsi/scsi_lib.c | 13 +++++++++---- drivers/usb/storage/uas.c | 2 +- include/linux/blkdev.h | 1 - include/scsi/scsi_cmnd.h | 4 ++++ include/scsi/scsi_tcq.h | 6 ++---- 9 files changed, 22 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index 2101e718670d..6b972b287795 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt @@ -827,10 +827,6 @@ but in the event of any barrier requests in the tag queue we need to ensure that requests are restarted in the order they were queue. This may happen if the driver needs to use blk_queue_invalidate_tags(). -Tagging also defines a new request flag, REQ_QUEUED. This is set whenever -a request is currently tagged. You should not use this flag directly, -blk_rq_tagged(rq) is the portable way to do so. - 3.3 I/O Submission The routine submit_bio() is used to submit a single io. Higher level i/o diff --git a/block/blk-core.c b/block/blk-core.c index 0421b53e6431..2e7424b42947 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1266,7 +1266,7 @@ void blk_requeue_request(struct request_queue *q, struct request *rq) blk_clear_rq_complete(rq); trace_block_rq_requeue(q, rq); - if (blk_rq_tagged(rq)) + if (rq->cmd_flags & REQ_QUEUED) blk_queue_end_tag(q, rq); BUG_ON(blk_queued_rq(rq)); @@ -2554,7 +2554,7 @@ EXPORT_SYMBOL_GPL(blk_unprep_request); */ void blk_finish_request(struct request *req, int error) { - if (blk_rq_tagged(req)) + if (req->cmd_flags & REQ_QUEUED) blk_queue_end_tag(req->q, req); BUG_ON(blk_queued_rq(req)); diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index 474cc6dc98e2..5143d3213e86 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -1767,7 +1767,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *) */ if(NCR_700_get_depth(SCp->device) != 0 && (!(hostdata->tag_negotiated & (1<request))) { + || !(SCp->flags & SCMD_TAGGED))) { CDEBUG(KERN_ERR, SCp, "has non zero depth %d\n", NCR_700_get_depth(SCp->device)); return SCSI_MLQUEUE_DEVICE_BUSY; @@ -1795,7 +1795,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *) printk("53c700: scsi%d, command ", SCp->device->host->host_no); scsi_print_command(SCp); #endif - if(blk_rq_tagged(SCp->request) + if ((SCp->flags & SCMD_TAGGED) && (hostdata->tag_negotiated &(1<device) == NCR_700_START_TAG_NEGOTIATION) { scmd_printk(KERN_ERR, SCp, "Enabling Tag Command Queuing\n"); @@ -1809,7 +1809,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *) * * FIXME: This will royally screw up on multiple LUN devices * */ - if(!blk_rq_tagged(SCp->request) + if (!(SCp->flags & SCMD_TAGGED) && (hostdata->tag_negotiated &(1<tag_negotiated &= ~(1<request) + if (!(cmd->flags & SCMD_TAGGED) && (ahc->features & AHC_SCB_BTT) == 0) { int target_offset; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 38f8c85957b6..994eb083fff9 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1740,7 +1740,7 @@ static void scsi_request_fn(struct request_queue *q) * we add the dev to the starved list so it eventually gets * a run when a tag is freed. */ - if (blk_queue_tagged(q) && !blk_rq_tagged(req)) { + if (blk_queue_tagged(q) && !(req->cmd_flags & REQ_QUEUED)) { spin_lock_irq(shost->host_lock); if (list_empty(&sdev->starved_entry)) list_add_tail(&sdev->starved_entry, @@ -1754,6 +1754,11 @@ static void scsi_request_fn(struct request_queue *q) if (!scsi_host_queue_ready(q, shost, sdev)) goto host_not_ready; + + if (sdev->simple_tags) + cmd->flags |= SCMD_TAGGED; + else + cmd->flags &= ~SCMD_TAGGED; /* * Finally, initialize any error handling parameters, and set up @@ -1908,10 +1913,10 @@ static int scsi_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *req, blk_mq_start_request(req); } - if (blk_queue_tagged(q)) - req->cmd_flags |= REQ_QUEUED; + if (sdev->simple_tags) + cmd->flags |= SCMD_TAGGED; else - req->cmd_flags &= ~REQ_QUEUED; + cmd->flags &= ~SCMD_TAGGED; scsi_init_cmd_errh(cmd); cmd->scsi_done = scsi_mq_done; diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 89b24349269e..b38bc1318a60 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -181,7 +181,7 @@ static int uas_get_tag(struct scsi_cmnd *cmnd) { int tag; - if (blk_rq_tagged(cmnd->request)) + if (cmnd->flags & SCMD_TAGGED) tag = cmnd->request->tag + 2; else tag = 1; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index aac0f9ea952a..6d76b8b4aa2b 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1136,7 +1136,6 @@ static inline bool blk_needs_flush_plug(struct task_struct *tsk) /* * tag stuff */ -#define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED) extern int blk_queue_start_tag(struct request_queue *, struct request *); extern struct request *blk_queue_find_tag(struct request_queue *, int); extern void blk_queue_end_tag(struct request_queue *, struct request *); diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 522a5f27f553..e119142e565e 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -53,6 +53,9 @@ struct scsi_pointer { volatile int phase; }; +/* for scmd->flags */ +#define SCMD_TAGGED (1 << 0) + struct scsi_cmnd { struct scsi_device *device; struct list_head list; /* scsi_cmnd participates in queue lists */ @@ -132,6 +135,7 @@ struct scsi_cmnd { * to be at an address < 16Mb). */ int result; /* Status code from lower level driver */ + int flags; /* Command flags */ unsigned char tag; /* SCSI-II queued command tag */ }; diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index 1712dab6e00e..032df74b66d7 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -101,11 +101,9 @@ static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth) **/ static inline int scsi_populate_tag_msg(struct scsi_cmnd *cmd, char *msg) { - struct request *req = cmd->request; - - if (blk_rq_tagged(req)) { + if (cmd->flags & SCMD_TAGGED) { *msg++ = MSG_SIMPLE_TAG; - *msg++ = req->tag; + *msg++ = cmd->request->tag; return 2; } -- cgit v1.2.3 From 609aa22f3be76d470a334f39cc2197112dc91bd7 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 30 Oct 2014 11:54:58 +0100 Subject: scsi: remove ordered_tags scsi_device field Remove the ordered_tags field, we haven't been issuing ordered tags based on it since the big barrier rework in 2010. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Bart Van Assche Reviewed-by: Martin K. Petersen --- drivers/message/fusion/mptscsih.c | 5 ++--- drivers/scsi/bfa/bfad_im.c | 11 +++-------- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 16 ++++------------ drivers/scsi/mpt3sas/mpt3sas_scsih.c | 15 +++------------ drivers/scsi/qla2xxx/qla_os.c | 5 +---- drivers/scsi/scsi.c | 13 ++----------- drivers/scsi/scsi_sysfs.c | 13 +++++++------ drivers/scsi/vmw_pvscsi.c | 4 ++-- drivers/target/loopback/tcm_loop.c | 14 +------------- include/scsi/scsi_device.h | 1 - include/scsi/scsi_tcq.h | 9 --------- 11 files changed, 25 insertions(+), 81 deletions(-) (limited to 'include') diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index e7dcb2583369..00bd13dc3dc4 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -2400,9 +2400,8 @@ mptscsih_slave_configure(struct scsi_device *sdev) mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH, SCSI_QDEPTH_DEFAULT); dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT - "tagged %d, simple %d, ordered %d\n", - ioc->name,sdev->tagged_supported, sdev->simple_tags, - sdev->ordered_tags)); + "tagged %d, simple %d\n", + ioc->name,sdev->tagged_supported, sdev->simple_tags)); blk_queue_dma_alignment (sdev->request_queue, 512 - 1); diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index f067332bf763..99280e89c289 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -868,14 +868,9 @@ bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { if (tmp_sdev->id != sdev->id) continue; - if (tmp_sdev->ordered_tags) - scsi_adjust_queue_depth(tmp_sdev, - MSG_ORDERED_TAG, - tmp_sdev->queue_depth + 1); - else - scsi_adjust_queue_depth(tmp_sdev, - MSG_SIMPLE_TAG, - tmp_sdev->queue_depth + 1); + scsi_adjust_queue_depth(tmp_sdev, + MSG_SIMPLE_TAG, + tmp_sdev->queue_depth + 1); itnim->last_ramp_up_time = jiffies; } diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index ec36b91c880f..69dc166b52bc 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1246,9 +1246,9 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), " - "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n", + "simple(%d), scsi_level(%d), cmd_que(%d)\n", sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags, - sdev->ordered_tags, sdev->scsi_level, + sdev->scsi_level, (sdev->inquiry[7] & 2) >> 1); return sdev->queue_depth; @@ -3944,16 +3944,8 @@ _scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd) mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER; /* set tags */ - if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) { - if (scmd->device->tagged_supported) { - if (scmd->device->ordered_tags) - mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ; - else - mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; - } else - mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; - } else - mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; + mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; + /* Make sure Device is not raid volume. * We do not expose raid functionality to upper layer for warpdrive. */ diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 52464ace282b..d3abf254341d 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1114,9 +1114,9 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), " \ - "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n", + "simple(%d), scsi_level(%d), cmd_que(%d)\n", sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags, - sdev->ordered_tags, sdev->scsi_level, + sdev->scsi_level, (sdev->inquiry[7] & 2) >> 1); return sdev->queue_depth; @@ -3563,16 +3563,7 @@ _scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd) mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER; /* set tags */ - if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) { - if (scmd->device->tagged_supported) { - if (scmd->device->ordered_tags) - mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ; - else - mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; - } else - mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; - } else - mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; + mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ; if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) && scmd->cmd_len != 32) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 5e755747e073..1e34fcf68e77 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1442,10 +1442,7 @@ static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth) if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth) return; - if (sdev->ordered_tags) - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth); - else - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth); + scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth); ql_dbg(ql_dbg_io, vha, 0x302a, "Queue depth adjusted-up to %d for nexus=%ld:%d:%llu.\n", diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 9baeff03dd9b..22c449e926fa 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -789,19 +789,13 @@ void scsi_adjust_queue_depth(struct scsi_device *sdev, int tagged, int tags) sdev->queue_depth = tags; switch (tagged) { case 0: - sdev->ordered_tags = 0; sdev->simple_tags = 0; break; case MSG_ORDERED_TAG: - sdev->ordered_tags = 1; - sdev->simple_tags = 1; - break; case MSG_SIMPLE_TAG: - sdev->ordered_tags = 0; sdev->simple_tags = 1; break; default: - sdev->ordered_tags = 0; sdev->simple_tags = 0; sdev_printk(KERN_WARNING, sdev, "scsi_adjust_queue_depth, bad queue type, " @@ -857,11 +851,8 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth) scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); return -1; } - - if (sdev->ordered_tags) - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth); - else - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth); + + scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth); return depth; } EXPORT_SYMBOL(scsi_track_queue_full); diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index f4cb7b3e9e23..35d93b0af82b 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -727,9 +727,7 @@ show_queue_type_field(struct device *dev, struct device_attribute *attr, struct scsi_device *sdev = to_scsi_device(dev); const char *name = "none"; - if (sdev->ordered_tags) - name = "ordered"; - else if (sdev->simple_tags) + if (sdev->simple_tags) name = "simple"; return snprintf(buf, 20, "%s\n", name); @@ -747,9 +745,12 @@ store_queue_type_field(struct device *dev, struct device_attribute *attr, if (!sdev->tagged_supported || !sht->change_queue_type) return -EINVAL; - if (strncmp(buf, "ordered", 7) == 0) - tag_type = MSG_ORDERED_TAG; - else if (strncmp(buf, "simple", 6) == 0) + /* + * We're never issueing order tags these days, but allow the value + * for backwards compatibility. + */ + if (strncmp(buf, "ordered", 7) == 0 || + strncmp(buf, "simple", 6) == 0) tag_type = MSG_SIMPLE_TAG; else if (strncmp(buf, "none", 4) != 0) return -EINVAL; diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c index 598f65efaaec..53a3eb6c0634 100644 --- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -526,9 +526,9 @@ static int pvscsi_change_queue_depth(struct scsi_device *sdev, if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, - "qdepth(%d), tagged(%d), simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n", + "qdepth(%d), tagged(%d), simple(%d), scsi_level(%d), cmd_que(%d)\n", sdev->queue_depth, sdev->tagged_supported, - sdev->simple_tags, sdev->ordered_tags, + sdev->simple_tags, sdev->scsi_level, (sdev->inquiry[7] & 2) >> 1); return sdev->queue_depth; } diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 3b9c76835b45..e30932f989a1 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -135,18 +135,6 @@ static int tcm_loop_change_queue_depth( return sdev->queue_depth; } -/* - * Locate the SAM Task Attr from struct scsi_cmnd * - */ -static int tcm_loop_sam_attr(struct scsi_cmnd *sc, int tag) -{ - if (sc->device->tagged_supported && - sc->device->ordered_tags && tag >= 0) - return MSG_ORDERED_TAG; - - return MSG_SIMPLE_TAG; -} - static void tcm_loop_submission_work(struct work_struct *work) { struct tcm_loop_cmd *tl_cmd = @@ -205,7 +193,7 @@ static void tcm_loop_submission_work(struct work_struct *work) rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd, &tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun, - transfer_length, tcm_loop_sam_attr(sc, tl_cmd->sc_cmd_tag), + transfer_length, MSG_SIMPLE_TAG, sc->sc_data_direction, 0, scsi_sglist(sc), scsi_sg_count(sc), sgl_bidi, sgl_bidi_count, diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 50d47e6e89d1..e8fecb5ea79a 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -141,7 +141,6 @@ struct scsi_device { unsigned ppr:1; /* Device supports PPR messages */ unsigned tagged_supported:1; /* Supports SCSI-II tagged queuing */ unsigned simple_tags:1; /* simple queue tag messages are enabled */ - unsigned ordered_tags:1;/* ordered queue tag messages are enabled */ unsigned was_reset:1; /* There was a bus reset on the bus for * this device */ unsigned expecting_cc_ua:1; /* Expecting a CHECK_CONDITION/UNIT_ATTN diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index 032df74b66d7..342f38c5b065 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -21,17 +21,11 @@ int scsi_change_queue_type(struct scsi_device *sdev, int tag_type); /** * scsi_get_tag_type - get the type of tag the device supports * @sdev: the scsi device - * - * Notes: - * If the drive only supports simple tags, returns MSG_SIMPLE_TAG - * if it supports all tag types, returns MSG_ORDERED_TAG. */ static inline int scsi_get_tag_type(struct scsi_device *sdev) { if (!sdev->tagged_supported) return 0; - if (sdev->ordered_tags) - return MSG_ORDERED_TAG; if (sdev->simple_tags) return MSG_SIMPLE_TAG; return 0; @@ -41,15 +35,12 @@ static inline void scsi_set_tag_type(struct scsi_device *sdev, int tag) { switch (tag) { case MSG_ORDERED_TAG: - sdev->ordered_tags = 1; - /* fall through */ case MSG_SIMPLE_TAG: sdev->simple_tags = 1; break; case 0: /* fall through */ default: - sdev->ordered_tags = 0; sdev->simple_tags = 0; break; } -- cgit v1.2.3 From abd0c533e37789ef56a73562d6d06d39897bd801 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 3 Nov 2014 14:47:07 +0100 Subject: scsi: remove ordered_tag host template field Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche Reviewed-by: Mike Christie Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke --- drivers/scsi/hosts.c | 1 - drivers/usb/storage/uas.c | 1 - include/scsi/scsi_host.h | 10 ---------- 3 files changed, 12 deletions(-) (limited to 'include') diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 06030e1ad696..8bb173e01084 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -418,7 +418,6 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) shost->cmd_per_lun = sht->cmd_per_lun; shost->unchecked_isa_dma = sht->unchecked_isa_dma; shost->use_clustering = sht->use_clustering; - shost->ordered_tag = sht->ordered_tag; shost->no_write_same = sht->no_write_same; if (shost_eh_deadline == -1 || !sht->eh_host_reset_handler) diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index b38bc1318a60..1bc5df4200a7 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -817,7 +817,6 @@ static struct scsi_host_template uas_host_template = { .sg_tablesize = SG_NONE, .cmd_per_lun = 1, /* until we override it */ .skip_settle_delay = 1, - .ordered_tag = 1, /* * The uas drivers expects tags not to be bigger than the maximum diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index bb9e27815be5..5b03ba9d7390 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -451,11 +451,6 @@ struct scsi_host_template { */ unsigned skip_settle_delay:1; - /* - * True if we are using ordered write support. - */ - unsigned ordered_tag:1; - /* True if the controller does not support WRITE SAME */ unsigned no_write_same:1; @@ -670,11 +665,6 @@ struct Scsi_Host { */ unsigned reverse_ordering:1; - /* - * Ordered write support - */ - unsigned ordered_tag:1; - /* Task mgmt function in progress */ unsigned tmf_in_progress:1; -- cgit v1.2.3 From 5066863337afdb0ad7323f424f7959d9f9f066da Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 30 Oct 2014 14:30:06 +0100 Subject: scsi: remove abuses of scsi_populate_tag Unless we want to build a SPI tag message we should just check SCMD_TAGGED instead of reverse engineering a tag type through the use of scsi_populate_tag_msg. Also rename the function to spi_populate_tag_msg, make it behave like the other spi message helpers, and move it to the spi transport class. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke --- drivers/s390/scsi/zfcp_fc.h | 14 +----- drivers/scsi/53c700.c | 2 +- drivers/scsi/aic7xxx/aic79xx_osm.c | 9 ---- drivers/scsi/aic7xxx/aic7xxx_osm.c | 10 +---- drivers/scsi/bnx2fc/bnx2fc_io.c | 18 ++------ drivers/scsi/csiostor/csio_scsi.c | 29 ++---------- drivers/scsi/esp_scsi.c | 2 +- drivers/scsi/fnic/fnic_scsi.c | 11 +---- drivers/scsi/ibmvscsi/ibmvfc.c | 16 ++----- drivers/scsi/ipr.c | 34 ++------------ drivers/scsi/lpfc/lpfc_scsi.c | 16 +------ drivers/scsi/pmcraid.c | 34 ++------------ drivers/scsi/qla2xxx/qla_iocb.c | 92 ++------------------------------------ drivers/scsi/qla2xxx/qla_mr.c | 13 ------ drivers/scsi/qla4xxx/ql4_iocb.c | 10 ----- drivers/scsi/scsi_transport_spi.c | 23 ++++++++++ drivers/scsi/tmscsim.c | 12 +++-- include/scsi/scsi_tcq.h | 21 --------- include/scsi/scsi_transport_spi.h | 1 + 19 files changed, 56 insertions(+), 311 deletions(-) (limited to 'include') diff --git a/drivers/s390/scsi/zfcp_fc.h b/drivers/s390/scsi/zfcp_fc.h index b1d2024ed513..df2b541c8287 100644 --- a/drivers/s390/scsi/zfcp_fc.h +++ b/drivers/s390/scsi/zfcp_fc.h @@ -212,8 +212,6 @@ static inline void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi, u8 tm_flags) { - char tag[2]; - int_to_scsilun(scsi->device->lun, (struct scsi_lun *) &fcp->fc_lun); if (unlikely(tm_flags)) { @@ -221,17 +219,7 @@ void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi, return; } - if (scsi_populate_tag_msg(scsi, tag)) { - switch (tag[0]) { - case MSG_ORDERED_TAG: - fcp->fc_pri_ta |= FCP_PTA_ORDERED; - break; - case MSG_SIMPLE_TAG: - fcp->fc_pri_ta |= FCP_PTA_SIMPLE; - break; - }; - } else - fcp->fc_pri_ta = FCP_PTA_SIMPLE; + fcp->fc_pri_ta = FCP_PTA_SIMPLE; if (scsi->sc_data_direction == DMA_FROM_DEVICE) fcp->fc_flags |= FCP_CFL_RDDATA; diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index 5143d3213e86..1b36fd3a6e62 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -1427,7 +1427,7 @@ NCR_700_start_command(struct scsi_cmnd *SCp) if((hostdata->tag_negotiated & (1<tag != SCSI_NO_TAG && SCp->cmnd[0] != REQUEST_SENSE && slot->flags != NCR_700_FLAG_AUTOSENSE)) { - count += scsi_populate_tag_msg(SCp, &hostdata->msgout[count]); + count += spi_populate_tag_msg(&hostdata->msgout[count], SCp); } if(hostdata->fast && diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index ed333669a7dc..d3b6d68107ea 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1619,15 +1619,6 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, } if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) { - int msg_bytes; - uint8_t tag_msgs[2]; - - msg_bytes = scsi_populate_tag_msg(cmd, tag_msgs); - if (msg_bytes && tag_msgs[0] != MSG_SIMPLE_TASK) { - hscb->control |= tag_msgs[0]; - if (tag_msgs[0] == MSG_ORDERED_TASK) - dev->commands_since_idle_or_otag = 0; - } else if (dev->commands_since_idle_or_otag == AHD_OTAG_THRESH && (dev->flags & AHD_DEV_Q_TAGGED) != 0) { hscb->control |= MSG_ORDERED_TASK; diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 63bae7c65c9f..33a5f959e86a 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -1501,15 +1501,7 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev, } if ((dev->flags & (AHC_DEV_Q_TAGGED|AHC_DEV_Q_BASIC)) != 0) { - int msg_bytes; - uint8_t tag_msgs[2]; - - msg_bytes = scsi_populate_tag_msg(cmd, tag_msgs); - if (msg_bytes && tag_msgs[0] != MSG_SIMPLE_TASK) { - hscb->control |= tag_msgs[0]; - if (tag_msgs[0] == MSG_ORDERED_TASK) - dev->commands_since_idle_or_otag = 0; - } else if (dev->commands_since_idle_or_otag == AHC_OTAG_THRESH + if (dev->commands_since_idle_or_otag == AHC_OTAG_THRESH && (dev->flags & AHC_DEV_Q_TAGGED) != 0) { hscb->control |= MSG_ORDERED_TASK; dev->commands_since_idle_or_otag = 0; diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index 5b99844ef6bf..4b56858c1df2 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -1725,7 +1725,6 @@ void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req, struct fcp_cmnd *fcp_cmnd) { struct scsi_cmnd *sc_cmd = io_req->sc_cmd; - char tag[2]; memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); @@ -1739,21 +1738,10 @@ void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req, fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags; fcp_cmnd->fc_flags = io_req->io_req_flags; - if (scsi_populate_tag_msg(sc_cmd, tag)) { - switch (tag[0]) { - case HEAD_OF_QUEUE_TAG: - fcp_cmnd->fc_pri_ta = FCP_PTA_HEADQ; - break; - case ORDERED_QUEUE_TAG: - fcp_cmnd->fc_pri_ta = FCP_PTA_ORDERED; - break; - default: - fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE; - break; - } - } else { + if (sc_cmd->flags & SCMD_TAGGED) + fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE; + else fcp_cmnd->fc_pri_ta = 0; - } } static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req, diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 86103c8475d8..8231505cce0a 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -152,28 +152,6 @@ csio_scsi_itnexus_loss_error(uint16_t error) return 0; } -static inline void -csio_scsi_tag(struct scsi_cmnd *scmnd, uint8_t *tag, uint8_t hq, - uint8_t oq, uint8_t sq) -{ - char stag[2]; - - if (scsi_populate_tag_msg(scmnd, stag)) { - switch (stag[0]) { - case HEAD_OF_QUEUE_TAG: - *tag = hq; - break; - case ORDERED_QUEUE_TAG: - *tag = oq; - break; - default: - *tag = sq; - break; - } - } else - *tag = 0; -} - /* * csio_scsi_fcp_cmnd - Frame the SCSI FCP command paylod. * @req: IO req structure. @@ -192,11 +170,12 @@ csio_scsi_fcp_cmnd(struct csio_ioreq *req, void *addr) int_to_scsilun(scmnd->device->lun, &fcp_cmnd->fc_lun); fcp_cmnd->fc_tm_flags = 0; fcp_cmnd->fc_cmdref = 0; - fcp_cmnd->fc_pri_ta = 0; memcpy(fcp_cmnd->fc_cdb, scmnd->cmnd, 16); - csio_scsi_tag(scmnd, &fcp_cmnd->fc_pri_ta, - FCP_PTA_HEADQ, FCP_PTA_ORDERED, FCP_PTA_SIMPLE); + if (scmnd->flags & SCMD_TAGGED) + fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE; + else + fcp_cmnd->fc_pri_ta = 0; fcp_cmnd->fc_dl = cpu_to_be32(scsi_bufflen(scmnd)); if (req->nsge) diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 55548dc5cec3..b23101b28bfa 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -663,7 +663,7 @@ static struct esp_cmd_entry *find_and_prep_issuable_command(struct esp *esp) return ent; } - if (!scsi_populate_tag_msg(cmd, &ent->tag[0])) { + if (!spi_populate_tag_msg(&ent->tag[0], cmd)) { ent->tag[0] = 0; ent->tag[1] = 0; } diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 961bdf5d31cd..10d5c6bbc9e7 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -325,13 +325,11 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, struct fc_rport_libfc_priv *rp = rport->dd_data; struct host_sg_desc *desc; struct misc_stats *misc_stats = &fnic->fnic_stats.misc_stats; - u8 pri_tag = 0; unsigned int i; unsigned long intr_flags; int flags; u8 exch_flags; struct scsi_lun fc_lun; - char msg[2]; if (sg_count) { /* For each SGE, create a device desc entry */ @@ -357,12 +355,6 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, int_to_scsilun(sc->device->lun, &fc_lun); - pri_tag = FCPIO_ICMND_PTA_SIMPLE; - msg[0] = MSG_SIMPLE_TAG; - scsi_populate_tag_msg(sc, msg); - if (msg[0] == MSG_ORDERED_TAG) - pri_tag = FCPIO_ICMND_PTA_ORDERED; - /* Enqueue the descriptor in the Copy WQ */ spin_lock_irqsave(&fnic->wq_copy_lock[0], intr_flags); @@ -394,7 +386,8 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, io_req->sgl_list_pa, io_req->sense_buf_pa, 0, /* scsi cmd ref, always 0 */ - pri_tag, /* scsi pri and tag */ + FCPIO_ICMND_PTA_SIMPLE, + /* scsi pri and tag */ flags, /* command flags */ sc->cmnd, sc->cmd_len, scsi_bufflen(sc), diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 48d19a3256ce..a964f8c85833 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -1643,19 +1643,9 @@ static int ibmvfc_queuecommand_lck(struct scsi_cmnd *cmnd, int_to_scsilun(cmnd->device->lun, &vfc_cmd->iu.lun); memcpy(vfc_cmd->iu.cdb, cmnd->cmnd, cmnd->cmd_len); - if (scsi_populate_tag_msg(cmnd, tag)) { - vfc_cmd->task_tag = cpu_to_be64(tag[1]); - switch (tag[0]) { - case MSG_SIMPLE_TAG: - vfc_cmd->iu.pri_task_attr = IBMVFC_SIMPLE_TASK; - break; - case MSG_HEAD_TAG: - vfc_cmd->iu.pri_task_attr = IBMVFC_HEAD_OF_QUEUE; - break; - case MSG_ORDERED_TAG: - vfc_cmd->iu.pri_task_attr = IBMVFC_ORDERED_TASK; - break; - }; + if (cmnd->flags & SCMD_TAGGED) { + vfc_cmd->task_tag = cpu_to_be64(cmnd->tag); + vfc_cmd->iu.pri_task_attr = IBMVFC_SIMPLE_TASK; } if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev)))) diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 3d689f6023e9..6b52feafa929 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -5658,35 +5658,6 @@ static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, return 0; } -/** - * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes - * @scsi_cmd: scsi command struct - * - * Return value: - * task attributes - **/ -static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) -{ - u8 tag[2]; - u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; - - if (scsi_populate_tag_msg(scsi_cmd, tag)) { - switch (tag[0]) { - case MSG_SIMPLE_TAG: - rc = IPR_FLAGS_LO_SIMPLE_TASK; - break; - case MSG_HEAD_TAG: - rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; - break; - case MSG_ORDERED_TAG: - rc = IPR_FLAGS_LO_ORDERED_TASK; - break; - }; - } - - return rc; -} - /** * ipr_erp_done - Process completion of ERP for a device * @ipr_cmd: ipr command struct @@ -6222,7 +6193,10 @@ static int ipr_queuecommand(struct Scsi_Host *shost, ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; } ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; - ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); + if (scsi_cmd->flags & SCMD_TAGGED) + ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK; + else + ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK; } if (scsi_cmd->cmnd[0] >= 0xC0 && diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 2896e52ac6cd..4a150063fb4d 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -4266,7 +4266,6 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); int datadir = scsi_cmnd->sc_data_direction; - char tag[2]; uint8_t *ptr; bool sli4; uint32_t fcpdl; @@ -4288,20 +4287,7 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len)); } - if (scsi_populate_tag_msg(scsi_cmnd, tag)) { - switch (tag[0]) { - case HEAD_OF_QUEUE_TAG: - fcp_cmnd->fcpCntl1 = HEAD_OF_Q; - break; - case ORDERED_QUEUE_TAG: - fcp_cmnd->fcpCntl1 = ORDERED_Q; - break; - default: - fcp_cmnd->fcpCntl1 = SIMPLE_Q; - break; - } - } else - fcp_cmnd->fcpCntl1 = SIMPLE_Q; + fcp_cmnd->fcpCntl1 = SIMPLE_Q; sli4 = (phba->sli_rev == LPFC_SLI_REV4); piocbq->iocb.un.fcpi.fcpi_XRdy = 0; diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index 2233ed6b89e3..d5fb31fa388b 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -3168,36 +3168,6 @@ static int pmcraid_eh_host_reset_handler(struct scsi_cmnd *scmd) return pmcraid_reset_bringup(pinstance) == 0 ? SUCCESS : FAILED; } -/** - * pmcraid_task_attributes - Translate SPI Q-Tags to task attributes - * @scsi_cmd: scsi command struct - * - * Return value - * number of tags or 0 if the task is not tagged - */ -static u8 pmcraid_task_attributes(struct scsi_cmnd *scsi_cmd) -{ - char tag[2]; - u8 rc = 0; - - if (scsi_populate_tag_msg(scsi_cmd, tag)) { - switch (tag[0]) { - case MSG_SIMPLE_TAG: - rc = TASK_TAG_SIMPLE; - break; - case MSG_HEAD_TAG: - rc = TASK_TAG_QUEUE_HEAD; - break; - case MSG_ORDERED_TAG: - rc = TASK_TAG_ORDERED; - break; - }; - } - - return rc; -} - - /** * pmcraid_init_ioadls - initializes IOADL related fields in IOARCB * @cmd: pmcraid command struct @@ -3553,7 +3523,9 @@ static int pmcraid_queuecommand_lck( } ioarcb->request_flags0 |= NO_LINK_DESCS; - ioarcb->request_flags1 |= pmcraid_task_attributes(scsi_cmd); + + if (scsi_cmd->flags & SCMD_TAGGED) + ioarcb->request_flags1 |= TASK_TAG_SIMPLE; if (RES_IS_GSCSI(res->cfg_entry)) ioarcb->request_flags1 |= DELAY_AFTER_RESET; diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index f0edb07f3198..a1ab25fca874 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -325,7 +325,6 @@ qla2x00_start_scsi(srb_t *sp) struct qla_hw_data *ha; struct req_que *req; struct rsp_que *rsp; - char tag[2]; /* Setup device pointers. */ ret = 0; @@ -404,26 +403,7 @@ qla2x00_start_scsi(srb_t *sp) /* Set target ID and LUN number*/ SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); cmd_pkt->lun = cpu_to_le16(cmd->device->lun); - - /* Update tagged queuing modifier */ - if (scsi_populate_tag_msg(cmd, tag)) { - switch (tag[0]) { - case HEAD_OF_QUEUE_TAG: - cmd_pkt->control_flags = - __constant_cpu_to_le16(CF_HEAD_TAG); - break; - case ORDERED_QUEUE_TAG: - cmd_pkt->control_flags = - __constant_cpu_to_le16(CF_ORDERED_TAG); - break; - default: - cmd_pkt->control_flags = - __constant_cpu_to_le16(CF_SIMPLE_TAG); - break; - } - } else { - cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); - } + cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); /* Load SCSI command packet. */ memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); @@ -1264,7 +1244,6 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, uint16_t fcp_cmnd_len; struct fcp_cmnd *fcp_cmnd; dma_addr_t crc_ctx_dma; - char tag[2]; cmd = GET_CMD_SP(sp); @@ -1356,25 +1335,7 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); fcp_cmnd->task_management = 0; - - /* - * Update tagged queuing modifier if using command tag queuing - */ - if (scsi_populate_tag_msg(cmd, tag)) { - switch (tag[0]) { - case HEAD_OF_QUEUE_TAG: - fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE; - break; - case ORDERED_QUEUE_TAG: - fcp_cmnd->task_attribute = TSK_ORDERED; - break; - default: - fcp_cmnd->task_attribute = TSK_SIMPLE; - break; - } - } else { - fcp_cmnd->task_attribute = TSK_SIMPLE; - } + fcp_cmnd->task_attribute = TSK_SIMPLE; cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ @@ -1495,7 +1456,6 @@ qla24xx_start_scsi(srb_t *sp) struct scsi_cmnd *cmd = GET_CMD_SP(sp); struct scsi_qla_host *vha = sp->fcport->vha; struct qla_hw_data *ha = vha->hw; - char tag[2]; /* Setup device pointers. */ ret = 0; @@ -1578,22 +1538,7 @@ qla24xx_start_scsi(srb_t *sp) int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); - /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ - if (scsi_populate_tag_msg(cmd, tag)) { - switch (tag[0]) { - case HEAD_OF_QUEUE_TAG: - cmd_pkt->task = TSK_HEAD_OF_QUEUE; - break; - case ORDERED_QUEUE_TAG: - cmd_pkt->task = TSK_ORDERED; - break; - default: - cmd_pkt->task = TSK_SIMPLE; - break; - } - } else { - cmd_pkt->task = TSK_SIMPLE; - } + cmd_pkt->task = TSK_SIMPLE; /* Load SCSI command packet. */ memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); @@ -2310,7 +2255,6 @@ qla82xx_start_scsi(srb_t *sp) struct qla_hw_data *ha = vha->hw; struct req_que *req = NULL; struct rsp_que *rsp = NULL; - char tag[2]; /* Setup device pointers. */ ret = 0; @@ -2489,22 +2433,6 @@ sufficient_dsds: else if (cmd->sc_data_direction == DMA_FROM_DEVICE) ctx->fcp_cmnd->additional_cdb_len |= 2; - /* - * Update tagged queuing modifier -- default is TSK_SIMPLE (0). - */ - if (scsi_populate_tag_msg(cmd, tag)) { - switch (tag[0]) { - case HEAD_OF_QUEUE_TAG: - ctx->fcp_cmnd->task_attribute = - TSK_HEAD_OF_QUEUE; - break; - case ORDERED_QUEUE_TAG: - ctx->fcp_cmnd->task_attribute = - TSK_ORDERED; - break; - } - } - /* Populate the FCP_PRIO. */ if (ha->flags.fcp_prio_enabled) ctx->fcp_cmnd->task_attribute |= @@ -2565,20 +2493,6 @@ sufficient_dsds: host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); - /* - * Update tagged queuing modifier -- default is TSK_SIMPLE (0). - */ - if (scsi_populate_tag_msg(cmd, tag)) { - switch (tag[0]) { - case HEAD_OF_QUEUE_TAG: - cmd_pkt->task = TSK_HEAD_OF_QUEUE; - break; - case ORDERED_QUEUE_TAG: - cmd_pkt->task = TSK_ORDERED; - break; - } - } - /* Populate the FCP_PRIO. */ if (ha->flags.fcp_prio_enabled) cmd_pkt->task |= sp->fcport->fcp_prio << 3; diff --git a/drivers/scsi/qla2xxx/qla_mr.c b/drivers/scsi/qla2xxx/qla_mr.c index 80867599527d..6d190b4b82a0 100644 --- a/drivers/scsi/qla2xxx/qla_mr.c +++ b/drivers/scsi/qla2xxx/qla_mr.c @@ -3086,7 +3086,6 @@ qlafx00_start_scsi(srb_t *sp) struct cmd_type_7_fx00 *cmd_pkt; struct cmd_type_7_fx00 lcmd_pkt; struct scsi_lun llun; - char tag[2]; /* Setup device pointers. */ ret = 0; @@ -3157,18 +3156,6 @@ qlafx00_start_scsi(srb_t *sp) host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun, sizeof(lcmd_pkt.lun)); - /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ - if (scsi_populate_tag_msg(cmd, tag)) { - switch (tag[0]) { - case HEAD_OF_QUEUE_TAG: - lcmd_pkt.task = TSK_HEAD_OF_QUEUE; - break; - case ORDERED_QUEUE_TAG: - lcmd_pkt.task = TSK_ORDERED; - break; - } - } - /* Load SCSI command packet. */ host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb)); lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c index 08ab6dac226d..17222eb49762 100644 --- a/drivers/scsi/qla4xxx/ql4_iocb.c +++ b/drivers/scsi/qla4xxx/ql4_iocb.c @@ -280,7 +280,6 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb) uint16_t req_cnt; unsigned long flags; uint32_t index; - char tag[2]; /* Get real lun and adapter */ ddb_entry = srb->ddb; @@ -352,15 +351,6 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb) /* Set tagged queueing control flags */ cmd_entry->control_flags |= CF_SIMPLE_TAG; - if (scsi_populate_tag_msg(cmd, tag)) - switch (tag[0]) { - case MSG_HEAD_TAG: - cmd_entry->control_flags |= CF_HEAD_TAG; - break; - case MSG_ORDERED_TAG: - cmd_entry->control_flags |= CF_ORDERED_TAG; - break; - } qla4xxx_advance_req_ring_ptr(ha); qla4xxx_build_scsi_iocbs(srb, cmd_entry, tot_dsds); diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c index cf08071a9b6e..fa2aece76cc2 100644 --- a/drivers/scsi/scsi_transport_spi.c +++ b/drivers/scsi/scsi_transport_spi.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -1207,6 +1208,28 @@ int spi_populate_ppr_msg(unsigned char *msg, int period, int offset, } EXPORT_SYMBOL_GPL(spi_populate_ppr_msg); +/** + * spi_populate_tag_msg - place a tag message in a buffer + * @msg: pointer to the area to place the tag + * @cmd: pointer to the scsi command for the tag + * + * Notes: + * designed to create the correct type of tag message for the + * particular request. Returns the size of the tag message. + * May return 0 if TCQ is disabled for this device. + **/ +int spi_populate_tag_msg(unsigned char *msg, struct scsi_cmnd *cmd) +{ + if (cmd->flags & SCMD_TAGGED) { + *msg++ = MSG_SIMPLE_TAG; + *msg++ = cmd->request->tag; + return 2; + } + + return 0; +} +EXPORT_SYMBOL_GPL(spi_populate_tag_msg); + #ifdef CONFIG_SCSI_CONSTANTS static const char * const one_byte_msgs[] = { /* 0x00 */ "Task Complete", NULL /* Extended Message */, "Save Pointers", diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 764575726c85..547812437a7c 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -243,7 +243,6 @@ #include #include - #define DC390_BANNER "Tekram DC390/AM53C974" #define DC390_VERSION "2.1d 2004-05-27" @@ -508,7 +507,6 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr struct scsi_cmnd *scmd = pSRB->pcmd; struct scsi_device *sdev = scmd->device; u8 cmd, disc_allowed, try_sync_nego; - char tag[2]; pSRB->ScsiPhase = SCSI_NOP0; @@ -560,11 +558,11 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr cmd = SEL_W_ATN; DC390_write8 (ScsiFifo, IDENTIFY(disc_allowed, pDCB->TargetLUN)); /* Change 99/05/31: Don't use tags when not disconnecting (BUSY) */ - if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && scsi_populate_tag_msg(scmd, tag)) { - DC390_write8(ScsiFifo, tag[0]); - pDCB->TagMask |= 1 << tag[1]; - pSRB->TagNumber = tag[1]; - DC390_write8(ScsiFifo, tag[1]); + if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && (scmd->flags & SCMD_TAGGED)) { + DC390_write8(ScsiFifo, MSG_SIMPLE_TAG); + pDCB->TagMask |= 1 << scmd->request->tag; + pSRB->TagNumber = scmd->request->tag; + DC390_write8(ScsiFifo, scmd->request->tag); DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for SRB %p, block tag %02x\n", pSRB, tag[1])); cmd = SEL_W_ATN3; } else { diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index 342f38c5b065..005f68da5adb 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -80,27 +80,6 @@ static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth) scsi_adjust_queue_depth(sdev, 0, depth); } -/** - * scsi_populate_tag_msg - place a tag message in a buffer - * @SCpnt: pointer to the Scsi_Cmnd for the tag - * @msg: pointer to the area to place the tag - * - * Notes: - * designed to create the correct type of tag message for the - * particular request. Returns the size of the tag message. - * May return 0 if TCQ is disabled for this device. - **/ -static inline int scsi_populate_tag_msg(struct scsi_cmnd *cmd, char *msg) -{ - if (cmd->flags & SCMD_TAGGED) { - *msg++ = MSG_SIMPLE_TAG; - *msg++ = cmd->request->tag; - return 2; - } - - return 0; -} - static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost, int unique_tag) { diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h index 7497a383b1a4..a4fa52b4d5c5 100644 --- a/include/scsi/scsi_transport_spi.h +++ b/include/scsi/scsi_transport_spi.h @@ -157,5 +157,6 @@ int spi_populate_width_msg(unsigned char *msg, int width); int spi_populate_sync_msg(unsigned char *msg, int period, int offset); int spi_populate_ppr_msg(unsigned char *msg, int period, int offset, int width, int options); +int spi_populate_tag_msg(unsigned char *msg, struct scsi_cmnd *cmd); #endif /* SCSI_TRANSPORT_SPI_H */ -- cgit v1.2.3 From e2eddf4d530df745019fded0fedfb78f6d3e33ca Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 4 Nov 2014 07:58:28 +0100 Subject: scsi: remove use_blk_tcq Scsi_Host field Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen --- include/scsi/scsi_host.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 5b03ba9d7390..d6bd65294009 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -650,7 +650,6 @@ struct Scsi_Host { unsigned active_mode:2; unsigned unchecked_isa_dma:1; unsigned use_clustering:1; - unsigned use_blk_tcq:1; /* * Host has requested that no further requests come through for the -- cgit v1.2.3 From 2ecb204d07ac8debe3893c362415919bc78bebd6 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 3 Nov 2014 14:09:02 +0100 Subject: scsi: always assign block layer tags if enabled Allow a driver to ask for block layer tags by setting .use_blk_tags in the host template, in which case it will always see a valid value in request->tag, similar to the behavior when using blk-mq. This means even SCSI "untagged" commands will now have a tag, which is especially useful when using a host-wide tag map. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke --- Documentation/scsi/scsi_mid_low_api.txt | 38 +-------------------------------- drivers/message/fusion/mptsas.c | 1 + drivers/scsi/53c700.c | 12 +++++------ drivers/scsi/aic7xxx/aic79xx_osm.c | 11 +++++----- drivers/scsi/aic7xxx/aic7xxx_osm.c | 11 +++++----- drivers/scsi/aic94xx/aic94xx_init.c | 1 + drivers/scsi/bfa/bfad_im.c | 8 +++---- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 1 + drivers/scsi/csiostor/csio_scsi.c | 8 +++---- drivers/scsi/esas2r/esas2r_main.c | 12 +++++------ drivers/scsi/esp_scsi.c | 6 +++--- drivers/scsi/fcoe/fcoe.c | 1 + drivers/scsi/fnic/fnic_main.c | 3 ++- drivers/scsi/ibmvscsi/ibmvfc.c | 11 +++++----- drivers/scsi/ipr.c | 1 + drivers/scsi/isci/init.c | 1 + drivers/scsi/libfc/fc_fcp.c | 7 +----- drivers/scsi/libsas/sas_scsi_host.c | 11 +++------- drivers/scsi/lpfc/lpfc_scsi.c | 7 +++--- drivers/scsi/mvsas/mv_init.c | 1 + drivers/scsi/pm8001/pm8001_init.c | 1 + drivers/scsi/pmcraid.c | 4 ++-- drivers/scsi/qla2xxx/qla_os.c | 6 ++---- drivers/scsi/qla4xxx/ql4_os.c | 10 ++------- drivers/scsi/scsi.c | 12 ++++------- drivers/scsi/scsi_scan.c | 6 ++++++ drivers/scsi/stex.c | 10 ++------- drivers/scsi/tmscsim.c | 3 ++- drivers/scsi/ufs/ufshcd.c | 5 +++-- drivers/target/loopback/tcm_loop.c | 2 +- drivers/usb/storage/uas.c | 4 ++-- include/scsi/scsi_host.h | 5 +++++ include/scsi/scsi_tcq.h | 34 ----------------------------- 33 files changed, 86 insertions(+), 168 deletions(-) (limited to 'include') diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index d6a9bdeee7f2..a67194209581 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -366,13 +366,11 @@ is initialized. The functions below are listed alphabetically and their names all start with "scsi_". Summary: - scsi_activate_tcq - turn on tag command queueing scsi_add_device - creates new scsi device (lu) instance scsi_add_host - perform sysfs registration and set up transport class scsi_adjust_queue_depth - change the queue depth on a SCSI device scsi_bios_ptable - return copy of block device's partition table scsi_block_requests - prevent further commands being queued to given host - scsi_deactivate_tcq - turn off tag command queueing scsi_host_alloc - return a new scsi_host instance whose refcount==1 scsi_host_get - increments Scsi_Host instance's refcount scsi_host_put - decrements Scsi_Host instance's refcount (free if 0) @@ -389,24 +387,6 @@ Summary: Details: -/** - * scsi_activate_tcq - turn on tag command queueing ("ordered" task attribute) - * @sdev: device to turn on TCQ for - * @depth: queue depth - * - * Returns nothing - * - * Might block: no - * - * Notes: Eventually, it is hoped depth would be the maximum depth - * the device could cope with and the real queue depth - * would be adjustable from 0 to depth. - * - * Defined (inline) in: include/scsi/scsi_tcq.h - **/ -void scsi_activate_tcq(struct scsi_device *sdev, int depth) - - /** * scsi_add_device - creates new scsi device (lu) instance * @shost: pointer to scsi host instance @@ -471,9 +451,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) * * Notes: Can be invoked any time on a SCSI device controlled by this * LLD. [Specifically during and after slave_configure() and prior to - * slave_destroy().] Can safely be invoked from interrupt code. Actual - * queue depth change may be delayed until the next command is being - * processed. See also scsi_activate_tcq() and scsi_deactivate_tcq(). + * slave_destroy().] Can safely be invoked from interrupt code. * * Defined in: drivers/scsi/scsi.c [see source code for more notes] * @@ -514,20 +492,6 @@ unsigned char *scsi_bios_ptable(struct block_device *dev) void scsi_block_requests(struct Scsi_Host * shost) -/** - * scsi_deactivate_tcq - turn off tag command queueing - * @sdev: device to turn off TCQ for - * @depth: queue depth (stored in sdev) - * - * Returns nothing - * - * Might block: no - * - * Defined (inline) in: include/scsi/scsi_tcq.h - **/ -void scsi_deactivate_tcq(struct scsi_device *sdev, int depth) - - /** * scsi_host_alloc - create a scsi host adapter instance and perform basic * initialization. diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 0707fa2c701b..5bdaae15a742 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1994,6 +1994,7 @@ static struct scsi_host_template mptsas_driver_template = { .cmd_per_lun = 7, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = mptscsih_host_attrs, + .use_blk_tags = 1, }; static int mptsas_get_linkerrors(struct sas_phy *phy) diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index 1b36fd3a6e62..497cbb1efd4b 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -327,6 +327,7 @@ NCR_700_detect(struct scsi_host_template *tpnt, tpnt->slave_alloc = NCR_700_slave_alloc; tpnt->change_queue_depth = NCR_700_change_queue_depth; tpnt->change_queue_type = NCR_700_change_queue_type; + tpnt->use_blk_tags = 1; if(tpnt->name == NULL) tpnt->name = "53c700"; @@ -902,7 +903,7 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata NCR_700_set_tag_neg_state(SCp->device, NCR_700_FINISHED_TAG_NEGOTIATION); hostdata->tag_negotiated &= ~(1<device->tagged_supported = 0; - scsi_deactivate_tcq(SCp->device, host->cmd_per_lun); + scsi_adjust_queue_depth(SCp->device, 0, host->cmd_per_lun); } else { shost_printk(KERN_WARNING, host, "(%d:%d) Unexpected REJECT Message %s\n", @@ -2049,8 +2050,7 @@ NCR_700_slave_configure(struct scsi_device *SDp) /* to do here: allocate memory; build a queue_full list */ if(SDp->tagged_supported) { - scsi_set_tag_type(SDp, MSG_ORDERED_TAG); - scsi_activate_tcq(SDp, NCR_700_DEFAULT_TAGS); + scsi_adjust_queue_depth(SDp, MSG_ORDERED_TAG, NCR_700_DEFAULT_TAGS); NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } else { /* initialise to default depth */ @@ -2094,8 +2094,6 @@ static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) struct NCR_700_Host_Parameters *hostdata = (struct NCR_700_Host_Parameters *)SDp->host->hostdata[0]; - scsi_set_tag_type(SDp, tag_type); - /* We have a global (per target) flag to track whether TCQ is * enabled, so we'll be turning it off for the entire target here. * our tag algorithm will fail if we mix tagged and untagged commands, @@ -2106,12 +2104,12 @@ static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) if (!tag_type) { /* shift back to the default unqueued number of commands * (the user can still raise this) */ - scsi_deactivate_tcq(SDp, SDp->host->cmd_per_lun); + scsi_adjust_queue_depth(SDp, 0, SDp->host->cmd_per_lun); hostdata->tag_negotiated &= ~(1 << sdev_id(SDp)); } else { /* Here, we cleared the negotiation flag above, so this * will force the driver to renegotiate */ - scsi_activate_tcq(SDp, SDp->queue_depth); + scsi_adjust_queue_depth(SDp, tag_type, SDp->queue_depth); if (change_tag) NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index d3b6d68107ea..9fd6b5618b25 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -925,6 +925,7 @@ struct scsi_host_template aic79xx_driver_template = { .slave_configure = ahd_linux_slave_configure, .target_alloc = ahd_linux_target_alloc, .target_destroy = ahd_linux_target_destroy, + .use_blk_tags = 1, }; /******************************** Bus DMA *************************************/ @@ -1468,12 +1469,12 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { case AHD_DEV_Q_BASIC: - scsi_set_tag_type(sdev, MSG_SIMPLE_TASK); - scsi_activate_tcq(sdev, dev->openings + dev->active); + scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TASK, + dev->openings + dev->active); break; case AHD_DEV_Q_TAGGED: - scsi_set_tag_type(sdev, MSG_ORDERED_TASK); - scsi_activate_tcq(sdev, dev->openings + dev->active); + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TASK, + dev->openings + dev->active); break; default: /* @@ -1482,7 +1483,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_deactivate_tcq(sdev, 1); + scsi_adjust_queue_depth(sdev, 0, 1); break; } } diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 33a5f959e86a..f18b6d69d3fb 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -812,6 +812,7 @@ struct scsi_host_template aic7xxx_driver_template = { .slave_configure = ahc_linux_slave_configure, .target_alloc = ahc_linux_target_alloc, .target_destroy = ahc_linux_target_destroy, + .use_blk_tags = 1, }; /**************************** Tasklet Handler *********************************/ @@ -1334,12 +1335,12 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, } switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) { case AHC_DEV_Q_BASIC: - scsi_set_tag_type(sdev, MSG_SIMPLE_TAG); - scsi_activate_tcq(sdev, dev->openings + dev->active); + scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TASK, + dev->openings + dev->active); break; case AHC_DEV_Q_TAGGED: - scsi_set_tag_type(sdev, MSG_ORDERED_TAG); - scsi_activate_tcq(sdev, dev->openings + dev->active); + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TASK, + dev->openings + dev->active); break; default: /* @@ -1348,7 +1349,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_deactivate_tcq(sdev, 2); + scsi_adjust_queue_depth(sdev, 0, 2); break; } } diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index c56741fc4b99..579dc2f460c4 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -83,6 +83,7 @@ static struct scsi_host_template aic94xx_sht = { .eh_bus_reset_handler = sas_eh_bus_reset_handler, .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, + .use_blk_tags = 1, }; static int asd_map_memio(struct asd_ha_struct *asd_ha) diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 99280e89c289..d8e43c81d19b 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -776,11 +776,7 @@ bfad_thread_workq(struct bfad_s *bfad) static int bfad_im_slave_configure(struct scsi_device *sdev) { - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, bfa_lun_queue_depth); - else - scsi_deactivate_tcq(sdev, bfa_lun_queue_depth); - + scsi_adjust_queue_depth(sdev, 0, bfa_lun_queue_depth); return 0; } @@ -804,6 +800,7 @@ struct scsi_host_template bfad_im_scsi_host_template = { .shost_attrs = bfad_im_host_attrs, .max_sectors = BFAD_MAX_SECTORS, .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, + .use_blk_tags = 1, }; struct scsi_host_template bfad_im_vport_template = { @@ -825,6 +822,7 @@ struct scsi_host_template bfad_im_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = bfad_im_vport_attrs, .max_sectors = BFAD_MAX_SECTORS, + .use_blk_tags = 1, }; bfa_status_t diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 3c6dc8abc776..cd2e61025926 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2790,6 +2790,7 @@ static struct scsi_host_template bnx2fc_shost_template = { .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, .max_sectors = 1024, + .use_blk_tags = 1, }; static struct libfc_function_template bnx2fc_libfc_fcn_templ = { diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 8231505cce0a..f73155db80a3 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2241,11 +2241,7 @@ csio_slave_alloc(struct scsi_device *sdev) static int csio_slave_configure(struct scsi_device *sdev) { - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, csio_lun_qdepth); - else - scsi_deactivate_tcq(sdev, csio_lun_qdepth); - + scsi_adjust_queue_depth(sdev, 0, csio_lun_qdepth); return 0; } @@ -2290,6 +2286,7 @@ struct scsi_host_template csio_fcoe_shost_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = csio_fcoe_lport_attrs, .max_sectors = CSIO_MAX_SECTOR_SIZE, + .use_blk_tags = 1, }; struct scsi_host_template csio_fcoe_shost_vport_template = { @@ -2309,6 +2306,7 @@ struct scsi_host_template csio_fcoe_shost_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = csio_fcoe_vport_attrs, .max_sectors = CSIO_MAX_SECTOR_SIZE, + .use_blk_tags = 1, }; /* diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index be09c628d034..a020b09ba347 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -260,6 +260,7 @@ static struct scsi_host_template driver_template = { .change_queue_depth = esas2r_change_queue_depth, .change_queue_type = scsi_change_queue_type, .max_sectors = 0xFFFF, + .use_blk_tags = 1, }; int sgl_page_size = 512; @@ -1278,13 +1279,10 @@ int esas2r_slave_configure(struct scsi_device *dev) esas2r_log_dev(ESAS2R_LOG_INFO, &(dev->sdev_gendev), "esas2r_slave_configure()"); - if (dev->tagged_supported) { - scsi_set_tag_type(dev, MSG_SIMPLE_TAG); - scsi_activate_tcq(dev, cmd_per_lun); - } else { - scsi_set_tag_type(dev, 0); - scsi_deactivate_tcq(dev, cmd_per_lun); - } + if (dev->tagged_supported) + scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, cmd_per_lun); + else + scsi_adjust_queue_depth(dev, 0, cmd_per_lun); return 0; } diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index b23101b28bfa..66b6ce10b259 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2419,10 +2419,9 @@ static int esp_slave_configure(struct scsi_device *dev) queue_depth = dev->host->cmd_per_lun; if (goal_tags) { - scsi_set_tag_type(dev, MSG_ORDERED_TAG); - scsi_activate_tcq(dev, queue_depth); + scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, queue_depth); } else { - scsi_deactivate_tcq(dev, queue_depth); + scsi_adjust_queue_depth(dev, 0, queue_depth); } tp->flags |= ESP_TGT_DISCONNECT; @@ -2631,6 +2630,7 @@ struct scsi_host_template scsi_esp_template = { .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0xffff, .skip_settle_delay = 1, + .use_blk_tags = 1, }; EXPORT_SYMBOL(scsi_esp_template); diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 86956cc3448e..a3eeb6842499 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -288,6 +288,7 @@ static struct scsi_host_template fcoe_shost_template = { .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = SG_ALL, .max_sectors = 0xffff, + .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 8581ce662cf0..2a6c98b7d4db 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -100,7 +100,7 @@ static int fnic_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_activate_tcq(sdev, fnic_max_qdepth); + scsi_adjust_queue_depth(sdev, 0, fnic_max_qdepth); return 0; } @@ -121,6 +121,7 @@ static struct scsi_host_template fnic_host_template = { .sg_tablesize = FNIC_MAX_SG_DESC_CNT, .max_sectors = 0xffff, .shost_attrs = fnic_attrs, + .use_blk_tags = 1, }; static void diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index a964f8c85833..4723d89df5ac 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2888,11 +2888,11 @@ static int ibmvfc_slave_configure(struct scsi_device *sdev) if (sdev->type == TYPE_DISK) sdev->allow_restart = 1; - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, MSG_SIMPLE_TAG); - scsi_activate_tcq(sdev, sdev->queue_depth); - } else - scsi_deactivate_tcq(sdev, sdev->queue_depth); + if (sdev->tagged_supported) + scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, + sdev->queue_depth); + else + scsi_adjust_queue_depth(sdev, 0, sdev->queue_depth); spin_unlock_irqrestore(shost->host_lock, flags); return 0; } @@ -3108,6 +3108,7 @@ static struct scsi_host_template driver_template = { .max_sectors = IBMVFC_MAX_SECTORS, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = ibmvfc_attrs, + .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 6b52feafa929..f84fcb9a6ed7 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -6317,6 +6317,7 @@ static struct scsi_host_template driver_template = { .sdev_attrs = ipr_dev_attrs, .proc_name = IPR_NAME, .no_write_same = 1, + .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 2e890b1e2526..897562056018 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -172,6 +172,7 @@ static struct scsi_host_template isci_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = isci_host_attrs, + .use_blk_tags = 1, }; static struct sas_domain_function_template isci_transport_ops = { diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index f3043ad1f35d..d4bb642f2681 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2160,12 +2160,7 @@ int fc_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, FC_FCP_DFLT_QUEUE_DEPTH); - else - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), - FC_FCP_DFLT_QUEUE_DEPTH); - + scsi_adjust_queue_depth(sdev, 0, FC_FCP_DFLT_QUEUE_DEPTH); return 0; } EXPORT_SYMBOL(fc_slave_alloc); diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 24e477d2ea70..eee21a060d93 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -940,15 +940,13 @@ int sas_slave_configure(struct scsi_device *scsi_dev) sas_read_port_mode_page(scsi_dev); if (scsi_dev->tagged_supported) { - scsi_set_tag_type(scsi_dev, MSG_SIMPLE_TAG); - scsi_activate_tcq(scsi_dev, SAS_DEF_QD); + scsi_adjust_queue_depth(scsi_dev, MSG_SIMPLE_TAG, SAS_DEF_QD); } else { SAS_DPRINTK("device %llx, LUN %llx doesn't support " "TCQ\n", SAS_ADDR(dev->sas_addr), scsi_dev->lun); scsi_dev->tagged_supported = 0; - scsi_set_tag_type(scsi_dev, 0); - scsi_deactivate_tcq(scsi_dev, 1); + scsi_adjust_queue_depth(scsi_dev, 0, 1); } scsi_dev->allow_restart = 1; @@ -991,10 +989,7 @@ int sas_change_queue_type(struct scsi_device *scsi_dev, int qt) if (!scsi_dev->tagged_supported) return 0; - scsi_deactivate_tcq(scsi_dev, 1); - - scsi_set_tag_type(scsi_dev, qt); - scsi_activate_tcq(scsi_dev, scsi_dev->queue_depth); + scsi_adjust_queue_depth(scsi_dev, qt, scsi_dev->queue_depth); return qt; } diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 4a150063fb4d..a24106a70968 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -5598,10 +5598,7 @@ lpfc_slave_configure(struct scsi_device *sdev) struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, vport->cfg_lun_queue_depth); - else - scsi_deactivate_tcq(sdev, vport->cfg_lun_queue_depth); + scsi_adjust_queue_depth(sdev, 0, vport->cfg_lun_queue_depth); if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_handle_fast_ring_event(phba, @@ -5986,6 +5983,7 @@ struct scsi_host_template lpfc_template = { .vendor_id = LPFC_NL_VENDOR_ID, .change_queue_depth = lpfc_change_queue_depth, .change_queue_type = scsi_change_queue_type, + .use_blk_tags = 1, }; struct scsi_host_template lpfc_vport_template = { @@ -6009,4 +6007,5 @@ struct scsi_host_template lpfc_vport_template = { .max_sectors = 0xFFFF, .change_queue_depth = lpfc_change_queue_depth, .change_queue_type = scsi_change_queue_type, + .use_blk_tags = 1, }; diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index eacee48a955c..d3c1fa5e76fb 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -76,6 +76,7 @@ static struct scsi_host_template mvs_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = mvst_host_attrs, + .use_blk_tags = 1, }; static struct sas_domain_function_template mvs_transport_ops = { diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 666bf5af06e2..3ff759a3b74d 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -89,6 +89,7 @@ static struct scsi_host_template pm8001_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = pm8001_host_attrs, + .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index d5fb31fa388b..71f9f59b13c6 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -251,7 +251,6 @@ static int pmcraid_slave_configure(struct scsi_device *scsi_dev) if (scsi_dev->tagged_supported && (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) { - scsi_activate_tcq(scsi_dev, scsi_dev->queue_depth); scsi_adjust_queue_depth(scsi_dev, MSG_SIMPLE_TAG, scsi_dev->host->cmd_per_lun); } else { @@ -4295,7 +4294,8 @@ static struct scsi_host_template pmcraid_host_template = { .cmd_per_lun = PMCRAID_MAX_CMD_PER_LUN, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = pmcraid_host_attrs, - .proc_name = PMCRAID_DRIVER_NAME + .proc_name = PMCRAID_DRIVER_NAME, + .use_blk_tags = 1, }; /* diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 1e34fcf68e77..eb0465305f8d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -269,6 +269,7 @@ struct scsi_host_template qla2xxx_driver_template = { .shost_attrs = qla2x00_host_attrs, .supported_mode = MODE_INITIATOR, + .use_blk_tags = 1, }; static struct scsi_transport_template *qla2xxx_transport_template = NULL; @@ -1404,10 +1405,7 @@ qla2xxx_slave_configure(struct scsi_device *sdev) if (IS_T10_PI_CAPABLE(vha->hw)) blk_queue_update_dma_alignment(sdev->request_queue, 0x7); - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, req->max_q_depth); - else - scsi_deactivate_tcq(sdev, req->max_q_depth); + scsi_adjust_queue_depth(sdev, 0, req->max_q_depth); return 0; } diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 199fcf79a051..f3119c144e29 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -163,7 +163,6 @@ static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); static int qla4xxx_slave_alloc(struct scsi_device *device); static int qla4xxx_slave_configure(struct scsi_device *device); -static void qla4xxx_slave_destroy(struct scsi_device *sdev); static umode_t qla4_attr_is_visible(int param_type, int param); static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, @@ -206,7 +205,6 @@ static struct scsi_host_template qla4xxx_driver_template = { .slave_configure = qla4xxx_slave_configure, .slave_alloc = qla4xxx_slave_alloc, - .slave_destroy = qla4xxx_slave_destroy, .change_queue_depth = qla4xxx_change_queue_depth, .this_id = -1, @@ -218,6 +216,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .shost_attrs = qla4xxx_host_attrs, .host_reset = qla4xxx_host_reset, .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, + .use_blk_tags = 1, }; static struct iscsi_transport qla4xxx_iscsi_transport = { @@ -9065,7 +9064,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) queue_depth = ql4xmaxqdepth; - scsi_activate_tcq(sdev, queue_depth); + scsi_adjust_queue_depth(sdev, 0, queue_depth); return 0; } @@ -9075,11 +9074,6 @@ static int qla4xxx_slave_configure(struct scsi_device *sdev) return 0; } -static void qla4xxx_slave_destroy(struct scsi_device *sdev) -{ - scsi_deactivate_tcq(sdev, 1); -} - static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 22c449e926fa..a3426f1bf0dd 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -864,16 +864,12 @@ EXPORT_SYMBOL(scsi_track_queue_full); */ int scsi_change_queue_type(struct scsi_device *sdev, int tag_type) { - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; + if (!sdev->tagged_supported) + return 0; + scsi_adjust_queue_depth(sdev, tag_type, sdev->queue_depth); return tag_type; + } EXPORT_SYMBOL(scsi_change_queue_type); diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index b1aa1646012a..408891cb14ff 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -286,6 +286,12 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, } WARN_ON_ONCE(!blk_get_queue(sdev->request_queue)); sdev->request_queue->queuedata = sdev; + + if (!shost_use_blk_mq(sdev->host) && + (shost->bqt || shost->hostt->use_blk_tags)) { + blk_queue_init_tags(sdev->request_queue, + sdev->host->cmd_per_lun, shost->bqt); + } scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); scsi_sysfs_device_initialize(sdev); diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 713af13b858e..b5eae4f6ba46 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -549,7 +549,7 @@ stex_slave_alloc(struct scsi_device *sdev) /* Cheat: usually extracted from Inquiry data */ sdev->tagged_supported = 1; - scsi_activate_tcq(sdev, sdev->host->can_queue); + scsi_adjust_queue_depth(sdev, 0, sdev->host->can_queue); return 0; } @@ -565,12 +565,6 @@ stex_slave_config(struct scsi_device *sdev) return 0; } -static void -stex_slave_destroy(struct scsi_device *sdev) -{ - scsi_deactivate_tcq(sdev, 1); -} - static int stex_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { @@ -1390,10 +1384,10 @@ static struct scsi_host_template driver_template = { .queuecommand = stex_queuecommand, .slave_alloc = stex_slave_alloc, .slave_configure = stex_slave_config, - .slave_destroy = stex_slave_destroy, .eh_abort_handler = stex_abort, .eh_host_reset_handler = stex_reset, .this_id = -1, + .use_blk_tags = 1, }; static struct pci_device_id stex_pci_tbl[] = { diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 547812437a7c..6369f9a282f1 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2187,7 +2187,7 @@ static int dc390_slave_configure(struct scsi_device *sdev) acb->scan_devices = 0; if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_activate_tcq(sdev, acb->TagMaxNum); + scsi_adjust_queue_depth(sdev, 0, acb->TagMaxNum); } return 0; @@ -2209,6 +2209,7 @@ static struct scsi_host_template driver_template = { .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0x4000, /* 8MiB = 16 * 1024 * 512 */ + .use_blk_tags = 1, }; /*********************************************************************** diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 9da319130da5..48c7f9e8f256 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2695,7 +2695,8 @@ static void ufshcd_set_queue_depth(struct scsi_device *sdev) dev_dbg(hba->dev, "%s: activate tcq with queue depth %d\n", __func__, lun_qdepth); - scsi_activate_tcq(sdev, lun_qdepth); + if (sdev->tagged_supported) + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), lun_qdepth); } /* @@ -2842,7 +2843,6 @@ static void ufshcd_slave_destroy(struct scsi_device *sdev) struct ufs_hba *hba; hba = shost_priv(sdev->host); - scsi_deactivate_tcq(sdev, hba->nutrs); /* Drop the reference as it won't be needed anymore */ if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) hba->sdev_ufs_device = NULL; @@ -4235,6 +4235,7 @@ static struct scsi_host_template ufshcd_driver_template = { .cmd_per_lun = UFSHCD_CMD_PER_LUN, .can_queue = UFSHCD_CAN_QUEUE, .max_host_blocked = 1, + .use_blk_tags = 1, }; static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg, diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index e30932f989a1..120a851df0d7 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -407,7 +407,6 @@ static int tcm_loop_slave_alloc(struct scsi_device *sd) static int tcm_loop_slave_configure(struct scsi_device *sd) { if (sd->tagged_supported) { - scsi_activate_tcq(sd, sd->queue_depth); scsi_adjust_queue_depth(sd, MSG_SIMPLE_TAG, sd->host->cmd_per_lun); } else { @@ -437,6 +436,7 @@ static struct scsi_host_template tcm_loop_driver_template = { .slave_alloc = tcm_loop_slave_alloc, .slave_configure = tcm_loop_slave_configure, .module = THIS_MODULE, + .use_blk_tags = 1, }; static int tcm_loop_driver_probe(struct device *dev) diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 1bc5df4200a7..ee69b82fc7d1 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -799,8 +799,7 @@ static int uas_slave_configure(struct scsi_device *sdev) if (devinfo->flags & US_FL_NO_REPORT_OPCODES) sdev->no_report_opcodes = 1; - scsi_set_tag_type(sdev, MSG_ORDERED_TAG); - scsi_activate_tcq(sdev, devinfo->qdepth - 2); + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, devinfo->qdepth - 2); return 0; } @@ -824,6 +823,7 @@ static struct scsi_host_template uas_host_template = { * allocator. */ .disable_blk_mq = true, + .use_blk_tags = 1, }; #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index d6bd65294009..61a81bf77e28 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -421,6 +421,11 @@ struct scsi_host_template { */ unsigned char present; + /* + * Let the block layer assigns tags to all commands. + */ + unsigned use_blk_tags:1; + /* * This specifies the mode that a LLD supports. */ diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index 005f68da5adb..fe4a70299419 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -45,40 +45,6 @@ static inline void scsi_set_tag_type(struct scsi_device *sdev, int tag) break; } } -/** - * scsi_activate_tcq - turn on tag command queueing - * @SDpnt: device to turn on TCQ for - * @depth: queue depth - * - * Notes: - * Eventually, I hope depth would be the maximum depth - * the device could cope with and the real queue depth - * would be adjustable from 0 to depth. - **/ -static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth) -{ - if (!sdev->tagged_supported) - return; - - if (shost_use_blk_mq(sdev->host)) - queue_flag_set_unlocked(QUEUE_FLAG_QUEUED, sdev->request_queue); - else if (!blk_queue_tagged(sdev->request_queue)) - blk_queue_init_tags(sdev->request_queue, depth, - sdev->host->bqt); - - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); -} - -/** - * scsi_deactivate_tcq - turn off tag command queueing - * @SDpnt: device to turn off TCQ for - **/ -static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth) -{ - if (blk_queue_tagged(sdev->request_queue)) - blk_queue_free_tags(sdev->request_queue); - scsi_adjust_queue_depth(sdev, 0, depth); -} static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost, int unique_tag) -- cgit v1.2.3 From c8b09f6fb67df7fc1b51ced1037fa9b677428149 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 3 Nov 2014 20:15:14 +0100 Subject: scsi: don't set tagging state from scsi_adjust_queue_depth Remove the tagged argument from scsi_adjust_queue_depth, and just let it handle the queue depth. For most drivers those two are fairly separate, given that most modern drivers don't care about the SCSI "tagged" status of a command at all, and many old drivers allow queuing of multiple untagged commands in the driver. Instead we start out with the ->simple_tags flag set before calling ->slave_configure, which is how all drivers actually looking at ->simple_tags except for one worke anyway. The one other case looks broken, but I've kept the behavior as-is for now. Except for that we only change ->simple_tags from the ->change_queue_type, and when rejecting a tag message in a single driver, so keeping this churn out of scsi_adjust_queue_depth is a clear win. Now that the usage of scsi_adjust_queue_depth is more obvious we can also remove all the trivial instances in ->slave_alloc or ->slave_configure that just set it to the cmd_per_lun default. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen --- Documentation/scsi/scsi_mid_low_api.txt | 12 ++++------ drivers/ata/libata-scsi.c | 4 ++-- drivers/infiniband/ulp/srp/ib_srp.c | 2 +- drivers/message/fusion/mptscsih.c | 2 +- drivers/s390/scsi/zfcp_scsi.c | 8 +++---- drivers/scsi/3w-9xxx.c | 2 +- drivers/scsi/3w-sas.c | 2 +- drivers/scsi/3w-xxxx.c | 2 +- drivers/scsi/53c700.c | 17 ++++++------- drivers/scsi/BusLogic.c | 4 ++-- drivers/scsi/aacraid/linit.c | 8 +++---- drivers/scsi/advansys.c | 7 ++---- drivers/scsi/aic7xxx/aic79xx_osm.c | 7 ++---- drivers/scsi/aic7xxx/aic7xxx_osm.c | 8 ++----- drivers/scsi/arcmsr/arcmsr_hba.c | 2 +- drivers/scsi/bfa/bfad_im.c | 3 +-- drivers/scsi/csiostor/csio_scsi.c | 2 +- drivers/scsi/dpt_i2o.c | 4 +--- drivers/scsi/eata.c | 8 +++---- drivers/scsi/esas2r/esas2r.h | 3 --- drivers/scsi/esas2r/esas2r_main.c | 29 +--------------------- drivers/scsi/esp_scsi.c | 17 ++----------- drivers/scsi/fnic/fnic_main.c | 2 +- drivers/scsi/gdth.c | 1 - drivers/scsi/hpsa.c | 2 +- drivers/scsi/hptiop.c | 2 +- drivers/scsi/ibmvscsi/ibmvfc.c | 8 +------ drivers/scsi/ibmvscsi/ibmvscsi.c | 3 +-- drivers/scsi/ipr.c | 8 +++---- drivers/scsi/ips.c | 2 +- drivers/scsi/libfc/fc_fcp.c | 6 ++--- drivers/scsi/libiscsi.c | 4 ++-- drivers/scsi/libsas/sas_scsi_host.c | 20 +++++----------- drivers/scsi/lpfc/lpfc_scsi.c | 4 ++-- drivers/scsi/megaraid/megaraid_mbox.c | 2 +- drivers/scsi/megaraid/megaraid_sas_base.c | 3 +-- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 2 +- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 2 +- drivers/scsi/ncr53c8xx.c | 5 +--- drivers/scsi/pmcraid.c | 40 ++++++------------------------- drivers/scsi/qla1280.c | 5 ++-- drivers/scsi/qla2xxx/qla_os.c | 6 ++--- drivers/scsi/qla4xxx/ql4_os.c | 2 +- drivers/scsi/scsi.c | 25 ++++--------------- drivers/scsi/scsi_debug.c | 7 ++---- drivers/scsi/scsi_scan.c | 6 +++-- drivers/scsi/stex.c | 2 -- drivers/scsi/storvsc_drv.c | 3 +-- drivers/scsi/sym53c8xx_2/sym_glue.c | 4 +--- drivers/scsi/tmscsim.c | 9 ++++++- drivers/scsi/u14-34f.c | 10 ++++---- drivers/scsi/ufs/ufshcd.c | 4 ++-- drivers/scsi/virtio_scsi.c | 4 +--- drivers/scsi/vmw_pvscsi.c | 2 +- drivers/target/loopback/tcm_loop.c | 18 ++------------ drivers/usb/storage/uas.c | 2 +- include/scsi/scsi_device.h | 2 +- 57 files changed, 120 insertions(+), 260 deletions(-) (limited to 'include') diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index a67194209581..bee7d86b9dcc 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -271,9 +271,9 @@ init_this_scsi_driver() ----+ slave_destroy() *** ------------------------------------------------------------ -The mid level invokes scsi_adjust_queue_depth() with tagged queuing off and -"cmd_per_lun" for that host as the queue length. These settings can be -overridden by a slave_configure() supplied by the LLD. +The mid level invokes scsi_adjust_queue_depth() with "cmd_per_lun" for that +host as the queue length. These settings can be overridden by a +slave_configure() supplied by the LLD. *** For scsi devices that the mid level tries to scan but do not respond, a slave_alloc(), slave_destroy() pair is called. @@ -438,9 +438,6 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) /** * scsi_adjust_queue_depth - allow LLD to change queue depth on a SCSI device * @sdev: pointer to SCSI device to change queue depth on - * @tagged: 0 - no tagged queuing - * MSG_SIMPLE_TAG - simple tagged queuing - * MSG_ORDERED_TAG - ordered tagged queuing * @tags Number of tags allowed if tagged queuing enabled, * or number of commands the LLD can queue up * in non-tagged mode (as per cmd_per_lun). @@ -456,8 +453,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) * Defined in: drivers/scsi/scsi.c [see source code for more notes] * **/ -void scsi_adjust_queue_depth(struct scsi_device * sdev, int tagged, - int tags) +void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) /** diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 0586f66d70fa..c8bb6abbf12c 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1164,7 +1164,7 @@ static int ata_scsi_dev_config(struct scsi_device *sdev, depth = min(sdev->host->can_queue, ata_id_queue_depth(dev->id)); depth = min(ATA_MAX_QUEUE - 1, depth); - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth); + scsi_adjust_queue_depth(sdev, depth); } blk_queue_flush_queueable(q, false); @@ -1282,7 +1282,7 @@ int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, if (sdev->queue_depth == queue_depth) return -EINVAL; - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 51670d75ab78..023a66f5ca14 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2278,7 +2278,7 @@ srp_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); } else if (reason == SCSI_QDEPTH_QFULL) scsi_track_queue_full(sdev, qdepth); else diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index c0d84a09db9a..dee06d6f0b68 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -2347,7 +2347,7 @@ mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 7b353647cb90..b5dfa51f396f 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -37,13 +37,13 @@ static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth, { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); break; case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; default: return -EOPNOTSUPP; @@ -66,9 +66,7 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdev) static int zfcp_scsi_slave_configure(struct scsi_device *sdp) { if (sdp->tagged_supported) - scsi_adjust_queue_depth(sdp, MSG_SIMPLE_TAG, default_depth); - else - scsi_adjust_queue_depth(sdp, 0, 1); + scsi_adjust_queue_depth(sdp, default_depth); return 0; } diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index 0a7325361d29..02021f5ca866 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -198,7 +198,7 @@ static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth, if (queue_depth > TW_Q_LENGTH-2) queue_depth = TW_Q_LENGTH-2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } /* End twa_change_queue_depth() */ diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c index 6da6cec9a651..ac0c2544a470 100644 --- a/drivers/scsi/3w-sas.c +++ b/drivers/scsi/3w-sas.c @@ -200,7 +200,7 @@ static int twl_change_queue_depth(struct scsi_device *sdev, int queue_depth, if (queue_depth > TW_Q_LENGTH-2) queue_depth = TW_Q_LENGTH-2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } /* End twl_change_queue_depth() */ diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 752624e6bc00..1ec9ad92b6c3 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -532,7 +532,7 @@ static int tw_change_queue_depth(struct scsi_device *sdev, int queue_depth, if (queue_depth > TW_Q_LENGTH-2) queue_depth = TW_Q_LENGTH-2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } /* End tw_change_queue_depth() */ diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index 497cbb1efd4b..d7557b932113 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -902,8 +902,10 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata /* we're done negotiating */ NCR_700_set_tag_neg_state(SCp->device, NCR_700_FINISHED_TAG_NEGOTIATION); hostdata->tag_negotiated &= ~(1<device->tagged_supported = 0; - scsi_adjust_queue_depth(SCp->device, 0, host->cmd_per_lun); + scsi_adjust_queue_depth(SCp->device, host->cmd_per_lun); + scsi_set_tag_type(SCp->device, 0); } else { shost_printk(KERN_WARNING, host, "(%d:%d) Unexpected REJECT Message %s\n", @@ -2050,12 +2052,10 @@ NCR_700_slave_configure(struct scsi_device *SDp) /* to do here: allocate memory; build a queue_full list */ if(SDp->tagged_supported) { - scsi_adjust_queue_depth(SDp, MSG_ORDERED_TAG, NCR_700_DEFAULT_TAGS); + scsi_adjust_queue_depth(SDp, NCR_700_DEFAULT_TAGS); NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); - } else { - /* initialise to default depth */ - scsi_adjust_queue_depth(SDp, 0, SDp->host->cmd_per_lun); } + if(hostdata->fast) { /* Find the correct offset and period via domain validation */ if (!spi_initial_dv(SDp->sdev_target)) @@ -2083,7 +2083,7 @@ NCR_700_change_queue_depth(struct scsi_device *SDp, int depth, int reason) if (depth > NCR_700_MAX_TAGS) depth = NCR_700_MAX_TAGS; - scsi_adjust_queue_depth(SDp, scsi_get_tag_type(SDp), depth); + scsi_adjust_queue_depth(SDp, depth); return depth; } @@ -2101,15 +2101,16 @@ static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) if (change_tag) scsi_target_quiesce(SDp->sdev_target); + scsi_set_tag_type(SDp, tag_type); if (!tag_type) { /* shift back to the default unqueued number of commands * (the user can still raise this) */ - scsi_adjust_queue_depth(SDp, 0, SDp->host->cmd_per_lun); + scsi_adjust_queue_depth(SDp, SDp->host->cmd_per_lun); hostdata->tag_negotiated &= ~(1 << sdev_id(SDp)); } else { /* Here, we cleared the negotiation flag above, so this * will force the driver to renegotiate */ - scsi_adjust_queue_depth(SDp, tag_type, SDp->queue_depth); + scsi_adjust_queue_depth(SDp, SDp->queue_depth); if (change_tag) NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index 64c75143c89a..5aa476b6b8a8 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -2327,12 +2327,12 @@ static int blogic_slaveconfig(struct scsi_device *dev) if (qdepth == 0) qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH; adapter->qdepth[tgt_id] = qdepth; - scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, qdepth); + scsi_adjust_queue_depth(dev, qdepth); } else { adapter->tagq_ok &= ~(1 << tgt_id); qdepth = adapter->untag_qdepth; adapter->qdepth[tgt_id] = qdepth; - scsi_adjust_queue_depth(dev, 0, qdepth); + scsi_adjust_queue_depth(dev, qdepth); } qdepth = 0; for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index a759cb2d4b15..41b9c68bca67 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -462,9 +462,9 @@ static int aac_slave_configure(struct scsi_device *sdev) depth = 256; else if (depth < 2) depth = 2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth); + scsi_adjust_queue_depth(sdev, depth); } else - scsi_adjust_queue_depth(sdev, 0, 1); + scsi_adjust_queue_depth(sdev, 1); return 0; } @@ -504,9 +504,9 @@ static int aac_change_queue_depth(struct scsi_device *sdev, int depth, depth = 256; else if (depth < 2) depth = 2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth); + scsi_adjust_queue_depth(sdev, depth); } else - scsi_adjust_queue_depth(sdev, 0, 1); + scsi_adjust_queue_depth(sdev, 1); return sdev->queue_depth; } diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 43761c1c46f0..ae4840e4c1c5 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -7706,7 +7706,7 @@ advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->can_tagged_qng |= tid_bit; asc_dvc->use_tagged_qng |= tid_bit; } - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + scsi_adjust_queue_depth(sdev, asc_dvc->max_dvc_qng[sdev->id]); } } else { @@ -7714,7 +7714,6 @@ advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->can_tagged_qng &= ~tid_bit; asc_dvc->use_tagged_qng &= ~tid_bit; } - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); } if ((sdev->lun == 0) && @@ -7849,10 +7848,8 @@ advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) } if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + scsi_adjust_queue_depth(sdev, adv_dvc->max_dvc_qng); - } else { - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); } } diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 9fd6b5618b25..80cb4fd7caaa 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1469,11 +1469,8 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { case AHD_DEV_Q_BASIC: - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TASK, - dev->openings + dev->active); - break; case AHD_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TASK, + scsi_adjust_queue_depth(sdev, dev->openings + dev->active); break; default: @@ -1483,7 +1480,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, 0, 1); + scsi_adjust_queue_depth(sdev, 1); break; } } diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index f18b6d69d3fb..a6a27d5398dd 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -1335,13 +1335,9 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, } switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) { case AHC_DEV_Q_BASIC: - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TASK, - dev->openings + dev->active); - break; case AHC_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TASK, + scsi_adjust_queue_depth(sdev, dev->openings + dev->active); - break; default: /* * We allow the OS to queue 2 untagged transactions to @@ -1349,7 +1345,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, 0, 2); + scsi_adjust_queue_depth(sdev, 2); break; } } diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 0b44fb5ee485..209f77162d06 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -122,7 +122,7 @@ static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, if (queue_depth > ARCMSR_MAX_CMD_PERLUN) queue_depth = ARCMSR_MAX_CMD_PERLUN; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index d8e43c81d19b..87b09cd232cc 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -776,7 +776,7 @@ bfad_thread_workq(struct bfad_s *bfad) static int bfad_im_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, 0, bfa_lun_queue_depth); + scsi_adjust_queue_depth(sdev, bfa_lun_queue_depth); return 0; } @@ -867,7 +867,6 @@ bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) if (tmp_sdev->id != sdev->id) continue; scsi_adjust_queue_depth(tmp_sdev, - MSG_SIMPLE_TAG, tmp_sdev->queue_depth + 1); itnim->last_ramp_up_time = jiffies; diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index f73155db80a3..44a8cc51428f 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2241,7 +2241,7 @@ csio_slave_alloc(struct scsi_device *sdev) static int csio_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, 0, csio_lun_qdepth); + scsi_adjust_queue_depth(sdev, csio_lun_qdepth); return 0; } diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 072f0ec2851e..1af8d54bcded 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -415,10 +415,8 @@ static int adpt_slave_configure(struct scsi_device * device) pHba = (adpt_hba *) host->hostdata[0]; if (host->can_queue && device->tagged_supported) { - scsi_adjust_queue_depth(device, MSG_SIMPLE_TAG, + scsi_adjust_queue_depth(device, host->can_queue - 1); - } else { - scsi_adjust_queue_depth(device, 0, 1); } return 0; } diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index 943ad3a19661..bc0f918f1729 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -946,20 +946,18 @@ static int eata2x_slave_configure(struct scsi_device *dev) if (TLDEV(dev->type) && dev->tagged_supported) { if (tag_mode == TAG_SIMPLE) { - scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, tqd); tag_suffix = ", simple tags"; } else if (tag_mode == TAG_ORDERED) { - scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, tqd); tag_suffix = ", ordered tags"; } else { - scsi_adjust_queue_depth(dev, 0, tqd); tag_suffix = ", no tags"; } + scsi_adjust_queue_depth(dev, tqd); } else if (TLDEV(dev->type) && linked_comm) { - scsi_adjust_queue_depth(dev, 0, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", untagged"; } else { - scsi_adjust_queue_depth(dev, 0, utqd); + scsi_adjust_queue_depth(dev, utqd); tag_suffix = ""; } diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h index 20ab211983f2..1941d837f6f2 100644 --- a/drivers/scsi/esas2r/esas2r.h +++ b/drivers/scsi/esas2r/esas2r.h @@ -972,9 +972,6 @@ u8 handle_hba_ioctl(struct esas2r_adapter *a, struct atto_ioctl *ioctl_hba); int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd); int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh); -int esas2r_slave_alloc(struct scsi_device *dev); -int esas2r_slave_configure(struct scsi_device *dev); -void esas2r_slave_destroy(struct scsi_device *dev); int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason); long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index a020b09ba347..30fce64faf75 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -254,9 +254,6 @@ static struct scsi_host_template driver_template = { .use_clustering = ENABLE_CLUSTERING, .emulated = 0, .proc_name = ESAS2R_DRVR_NAME, - .slave_configure = esas2r_slave_configure, - .slave_alloc = esas2r_slave_alloc, - .slave_destroy = esas2r_slave_destroy, .change_queue_depth = esas2r_change_queue_depth, .change_queue_type = scsi_change_queue_type, .max_sectors = 0xFFFF, @@ -1264,35 +1261,11 @@ int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason) { esas2r_log(ESAS2R_LOG_INFO, "change_queue_depth %p, %d", dev, depth); - scsi_adjust_queue_depth(dev, scsi_get_tag_type(dev), depth); + scsi_adjust_queue_depth(dev, depth); return dev->queue_depth; } -int esas2r_slave_alloc(struct scsi_device *dev) -{ - return 0; -} - -int esas2r_slave_configure(struct scsi_device *dev) -{ - esas2r_log_dev(ESAS2R_LOG_INFO, &(dev->sdev_gendev), - "esas2r_slave_configure()"); - - if (dev->tagged_supported) - scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, cmd_per_lun); - else - scsi_adjust_queue_depth(dev, 0, cmd_per_lun); - - return 0; -} - -void esas2r_slave_destroy(struct scsi_device *dev) -{ - esas2r_log_dev(ESAS2R_LOG_INFO, &(dev->sdev_gendev), - "esas2r_slave_destroy()"); -} - void esas2r_log_request_failure(struct esas2r_adapter *a, struct esas2r_request *rq) { diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 66b6ce10b259..38c23e0b73af 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2402,27 +2402,14 @@ static int esp_slave_configure(struct scsi_device *dev) { struct esp *esp = shost_priv(dev->host); struct esp_target_data *tp = &esp->target[dev->id]; - int goal_tags, queue_depth; - - goal_tags = 0; if (dev->tagged_supported) { /* XXX make this configurable somehow XXX */ - goal_tags = ESP_DEFAULT_TAGS; + int goal_tags = min(ESP_DEFAULT_TAGS, ESP_MAX_TAG); - if (goal_tags > ESP_MAX_TAG) - goal_tags = ESP_MAX_TAG; + scsi_adjust_queue_depth(dev, goal_tags); } - queue_depth = goal_tags; - if (queue_depth < dev->host->cmd_per_lun) - queue_depth = dev->host->cmd_per_lun; - - if (goal_tags) { - scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, queue_depth); - } else { - scsi_adjust_queue_depth(dev, 0, queue_depth); - } tp->flags |= ESP_TGT_DISCONNECT; if (!spi_initial_dv(dev->sdev_target)) diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 2a6c98b7d4db..0f29e3f89b26 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -100,7 +100,7 @@ static int fnic_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_adjust_queue_depth(sdev, 0, fnic_max_qdepth); + scsi_adjust_queue_depth(sdev, fnic_max_qdepth); return 0; } diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 0f1ae13ce7c7..4ebbeae161e2 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -4661,7 +4661,6 @@ static void gdth_flush(gdth_ha_str *ha) /* configure lun */ static int gdth_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); sdev->skip_ms_page_3f = 1; sdev->skip_ms_page_8 = 1; return 0; diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index cef5d49b59cd..18ea2e16e34f 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4165,7 +4165,7 @@ static int hpsa_change_queue_depth(struct scsi_device *sdev, else if (qdepth > h->nr_cmds) qdepth = h->nr_cmds; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index dedb62c21b29..151893148abd 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -1127,7 +1127,7 @@ static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, if (queue_depth > hba->max_requests) queue_depth = hba->max_requests; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 4723d89df5ac..147b80e07b00 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2887,12 +2887,6 @@ static int ibmvfc_slave_configure(struct scsi_device *sdev) spin_lock_irqsave(shost->host_lock, flags); if (sdev->type == TYPE_DISK) sdev->allow_restart = 1; - - if (sdev->tagged_supported) - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, - sdev->queue_depth); - else - scsi_adjust_queue_depth(sdev, 0, sdev->queue_depth); spin_unlock_irqrestore(shost->host_lock, flags); return 0; } @@ -2915,7 +2909,7 @@ static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth, if (qdepth > IBMVFC_MAX_CMDS_PER_LUN) qdepth = IBMVFC_MAX_CMDS_PER_LUN; - scsi_adjust_queue_depth(sdev, 0, qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 7b23f21f22f1..e8c3cdf0d03b 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1929,7 +1929,6 @@ static int ibmvscsi_slave_configure(struct scsi_device *sdev) blk_queue_rq_timeout(sdev->request_queue, 120 * HZ); } spin_unlock_irqrestore(shost->host_lock, lock_flags); - scsi_adjust_queue_depth(sdev, 0, shost->cmd_per_lun); return 0; } @@ -1951,7 +1950,7 @@ static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth, if (qdepth > IBMVSCSI_MAX_CMDS_PER_LUN) qdepth = IBMVSCSI_MAX_CMDS_PER_LUN; - scsi_adjust_queue_depth(sdev, 0, qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index f84fcb9a6ed7..256ef98f5c29 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4344,7 +4344,7 @@ static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, qdepth = IPR_MAX_CMD_PER_ATA_LUN; spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } @@ -4751,10 +4751,10 @@ static int ipr_slave_configure(struct scsi_device *sdev) spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); if (ap) { - scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); + scsi_adjust_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); ata_sas_slave_configure(sdev, ap); - } else - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } + if (ioa_cfg->sis64) sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", ipr_format_res_path(ioa_cfg, diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index e5afc3884d74..454741a8da45 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -1210,7 +1210,7 @@ ips_slave_configure(struct scsi_device * SDptr) min = ha->max_cmds / 2; if (ha->enq->ucLogDriveCount <= 2) min = ha->max_cmds - 1; - scsi_adjust_queue_depth(SDptr, MSG_ORDERED_TAG, min); + scsi_adjust_queue_depth(SDptr, min); } SDptr->skip_ms_page_8 = 1; diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index d4bb642f2681..bf954ee050f8 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2160,7 +2160,7 @@ int fc_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_adjust_queue_depth(sdev, 0, FC_FCP_DFLT_QUEUE_DEPTH); + scsi_adjust_queue_depth(sdev, FC_FCP_DFLT_QUEUE_DEPTH); return 0; } EXPORT_SYMBOL(fc_slave_alloc); @@ -2175,13 +2175,13 @@ int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, qdepth); break; case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); break; default: return -EOPNOTSUPP; diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 0d8bc6c66650..d521624dedfb 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1775,13 +1775,13 @@ int iscsi_change_queue_depth(struct scsi_device *sdev, int depth, int reason) { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); break; case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; default: return -EOPNOTSUPP; diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index eee21a060d93..56d698af073d 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -940,13 +940,13 @@ int sas_slave_configure(struct scsi_device *scsi_dev) sas_read_port_mode_page(scsi_dev); if (scsi_dev->tagged_supported) { - scsi_adjust_queue_depth(scsi_dev, MSG_SIMPLE_TAG, SAS_DEF_QD); + scsi_adjust_queue_depth(scsi_dev, SAS_DEF_QD); } else { SAS_DPRINTK("device %llx, LUN %llx doesn't support " "TCQ\n", SAS_ADDR(dev->sas_addr), scsi_dev->lun); scsi_dev->tagged_supported = 0; - scsi_adjust_queue_depth(scsi_dev, 0, 1); + scsi_adjust_queue_depth(scsi_dev, 1); } scsi_dev->allow_restart = 1; @@ -967,7 +967,7 @@ int sas_change_queue_depth(struct scsi_device *sdev, int depth, int reason) case SCSI_QDEPTH_RAMP_UP: if (!sdev->tagged_supported) depth = 1; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); @@ -979,19 +979,11 @@ int sas_change_queue_depth(struct scsi_device *sdev, int depth, int reason) return depth; } -int sas_change_queue_type(struct scsi_device *scsi_dev, int qt) +int sas_change_queue_type(struct scsi_device *scsi_dev, int type) { - struct domain_device *dev = sdev_to_domain_dev(scsi_dev); - - if (dev_is_sata(dev)) + if (dev_is_sata(sdev_to_domain_dev(scsi_dev))) return -EINVAL; - - if (!scsi_dev->tagged_supported) - return 0; - - scsi_adjust_queue_depth(scsi_dev, qt, scsi_dev->queue_depth); - - return qt; + return scsi_change_queue_type(scsi_dev, type); } int sas_bios_param(struct scsi_device *scsi_dev, diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index a24106a70968..8533ee9b818d 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -320,7 +320,7 @@ lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) case SCSI_QDEPTH_DEFAULT: /* change request from sysfs, fall through */ case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); break; case SCSI_QDEPTH_QFULL: if (scsi_track_queue_full(sdev, qdepth) == 0) @@ -5598,7 +5598,7 @@ lpfc_slave_configure(struct scsi_device *sdev) struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; - scsi_adjust_queue_depth(sdev, 0, vport->cfg_lun_queue_depth); + scsi_adjust_queue_depth(sdev, vport->cfg_lun_queue_depth); if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_handle_fast_ring_event(phba, diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 531dce419c18..6b077d839f2b 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -349,7 +349,7 @@ static int megaraid_change_queue_depth(struct scsi_device *sdev, int qdepth, if (qdepth > MBOX_MAX_SCSI_CMDS) qdepth = MBOX_MAX_SCSI_CMDS; - scsi_adjust_queue_depth(sdev, 0, qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 5640ad1c8214..107244cebd22 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -2594,8 +2594,7 @@ static int megasas_change_queue_depth(struct scsi_device *sdev, if (queue_depth > sdev->host->can_queue) queue_depth = sdev->host->can_queue; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), - queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 69dc166b52bc..42fef914d441 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1222,7 +1222,7 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); } /** diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index d3abf254341d..b23c2e7588e5 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1090,7 +1090,7 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); } /** diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c index a7305ffc359d..9c331b7bfdcd 100644 --- a/drivers/scsi/ncr53c8xx.c +++ b/drivers/scsi/ncr53c8xx.c @@ -7997,10 +7997,7 @@ static int ncr53c8xx_slave_configure(struct scsi_device *device) if (depth_to_use > MAX_TAGS) depth_to_use = MAX_TAGS; - scsi_adjust_queue_depth(device, - (device->tagged_supported ? - MSG_SIMPLE_TAG : 0), - depth_to_use); + scsi_adjust_queue_depth(device, depth_to_use); /* ** Since the queue depth is not tunable under Linux, diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index 71f9f59b13c6..d8b9ba251fbd 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -249,14 +249,11 @@ static int pmcraid_slave_configure(struct scsi_device *scsi_dev) PMCRAID_VSET_MAX_SECTORS); } - if (scsi_dev->tagged_supported && - (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) { - scsi_adjust_queue_depth(scsi_dev, MSG_SIMPLE_TAG, - scsi_dev->host->cmd_per_lun); - } else { - scsi_adjust_queue_depth(scsi_dev, 0, - scsi_dev->host->cmd_per_lun); - } + /* + * We never want to report TCQ support for these types of devices. + */ + if (!RES_IS_GSCSI(res->cfg_entry) && !RES_IS_VSET(res->cfg_entry)) + scsi_dev->tagged_supported = 0; return 0; } @@ -302,34 +299,11 @@ static int pmcraid_change_queue_depth(struct scsi_device *scsi_dev, int depth, if (depth > PMCRAID_MAX_CMD_PER_LUN) depth = PMCRAID_MAX_CMD_PER_LUN; - scsi_adjust_queue_depth(scsi_dev, scsi_get_tag_type(scsi_dev), depth); + scsi_adjust_queue_depth(scsi_dev, depth); return scsi_dev->queue_depth; } -/** - * pmcraid_change_queue_type - Change the device's queue type - * @scsi_dev: scsi device struct - * @tag: type of tags to use - * - * Return value: - * actual queue type set - */ -static int pmcraid_change_queue_type(struct scsi_device *scsi_dev, int tag) -{ - struct pmcraid_resource_entry *res; - - res = (struct pmcraid_resource_entry *)scsi_dev->hostdata; - if (res && scsi_dev->tagged_supported && - (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) - tag = scsi_change_queue_type(scsi_dev, tag); - else - tag = 0; - - return tag; -} - - /** * pmcraid_init_cmdblk - initializes a command block * @@ -4285,7 +4259,7 @@ static struct scsi_host_template pmcraid_host_template = { .slave_configure = pmcraid_slave_configure, .slave_destroy = pmcraid_slave_destroy, .change_queue_depth = pmcraid_change_queue_depth, - .change_queue_type = pmcraid_change_queue_type, + .change_queue_type = scsi_change_queue_type, .can_queue = PMCRAID_MAX_IO_CMD, .this_id = -1, .sg_tablesize = PMCRAID_MAX_IOADLS, diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 158020522dfb..adedb6ef8eec 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -1224,10 +1224,9 @@ qla1280_slave_configure(struct scsi_device *device) if (device->tagged_supported && (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { - scsi_adjust_queue_depth(device, MSG_ORDERED_TAG, - ha->bus_settings[bus].hiwat); + scsi_adjust_queue_depth(device, ha->bus_settings[bus].hiwat); } else { - scsi_adjust_queue_depth(device, 0, default_depth); + scsi_adjust_queue_depth(device, default_depth); } nv->bus[bus].target[target].parameter.enable_sync = device->sdtr; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index eb0465305f8d..33166ebec7d8 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1405,7 +1405,7 @@ qla2xxx_slave_configure(struct scsi_device *sdev) if (IS_T10_PI_CAPABLE(vha->hw)) blk_queue_update_dma_alignment(sdev->request_queue, 0x7); - scsi_adjust_queue_depth(sdev, 0, req->max_q_depth); + scsi_adjust_queue_depth(sdev, req->max_q_depth); return 0; } @@ -1440,7 +1440,7 @@ static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth) if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth) return; - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth); + scsi_adjust_queue_depth(sdev, qdepth); ql_dbg(ql_dbg_io, vha, 0x302a, "Queue depth adjusted-up to %d for nexus=%ld:%d:%llu.\n", @@ -1452,7 +1452,7 @@ qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); break; case SCSI_QDEPTH_QFULL: qla2x00_handle_queue_full(sdev, qdepth); diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index f3119c144e29..784f59e55510 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -9064,7 +9064,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) queue_depth = ql4xmaxqdepth; - scsi_adjust_queue_depth(sdev, 0, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return 0; } diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index a3426f1bf0dd..106fa2f886d2 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -744,8 +744,6 @@ void scsi_finish_command(struct scsi_cmnd *cmd) /** * scsi_adjust_queue_depth - Let low level drivers change a device's queue depth * @sdev: SCSI Device in question - * @tagged: Do we use tagged queueing (non-0) or do we treat - * this device as an untagged device (0) * @tags: Number of tags allowed if tagged queueing enabled, * or number of commands the low level driver can * queue up in non-tagged mode (as per cmd_per_lun). @@ -759,7 +757,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd) * currently active and whether or not it even has the * command blocks built yet. */ -void scsi_adjust_queue_depth(struct scsi_device *sdev, int tagged, int tags) +void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) { unsigned long flags; @@ -787,20 +785,6 @@ void scsi_adjust_queue_depth(struct scsi_device *sdev, int tagged, int tags) } sdev->queue_depth = tags; - switch (tagged) { - case 0: - sdev->simple_tags = 0; - break; - case MSG_ORDERED_TAG: - case MSG_SIMPLE_TAG: - sdev->simple_tags = 1; - break; - default: - sdev->simple_tags = 0; - sdev_printk(KERN_WARNING, sdev, - "scsi_adjust_queue_depth, bad queue type, " - "disabled\n"); - } out: spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); } @@ -848,11 +832,12 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth) return 0; if (sdev->last_queue_full_depth < 8) { /* Drop back to untagged */ - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + scsi_set_tag_type(sdev, 0); + scsi_adjust_queue_depth(sdev, sdev->host->cmd_per_lun); return -1; } - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth); + scsi_adjust_queue_depth(sdev, depth); return depth; } EXPORT_SYMBOL(scsi_track_queue_full); @@ -867,7 +852,7 @@ int scsi_change_queue_type(struct scsi_device *sdev, int tag_type) if (!sdev->tagged_supported) return 0; - scsi_adjust_queue_depth(sdev, tag_type, sdev->queue_depth); + scsi_set_tag_type(sdev, tag_type); return tag_type; } diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 7bcace2cdd53..fce4e47becc7 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -2700,11 +2700,8 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp) devip = devInfoReg(sdp); if (NULL == devip) return 1; /* no resources, will be marked offline */ - sdp->hostdata = devip; sdp->tagged_supported = 1; - if (sdp->host->cmd_per_lun) - scsi_adjust_queue_depth(sdp, DEF_TAGGED_QUEUING, - DEF_CMD_PER_LUN); + sdp->hostdata = devip; blk_queue_max_segment_size(sdp->request_queue, -1U); if (scsi_debug_no_uld) sdp->no_uld_attach = 1; @@ -4494,7 +4491,7 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) /* allow to exceed max host queued_arr elements for testing */ if (qdepth > SCSI_DEBUG_CANQUEUE + 10) qdepth = SCSI_DEBUG_CANQUEUE + 10; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); } else if (reason == SCSI_QDEPTH_QFULL) scsi_track_queue_full(sdev, qdepth); else diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 408891cb14ff..d97597e6337e 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -292,7 +292,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, blk_queue_init_tags(sdev->request_queue, sdev->host->cmd_per_lun, shost->bqt); } - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + scsi_adjust_queue_depth(sdev, sdev->host->cmd_per_lun); scsi_sysfs_device_initialize(sdev); @@ -880,8 +880,10 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, (inq_result[3] & 0x0f) == 1 ? " CCS" : ""); if ((sdev->scsi_level >= SCSI_2) && (inq_result[7] & 2) && - !(*bflags & BLIST_NOTQ)) + !(*bflags & BLIST_NOTQ)) { sdev->tagged_supported = 1; + sdev->simple_tags = 1; + } /* * Some devices (Texel CD ROM drives) have handshaking problems diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index b5eae4f6ba46..2bb8a9e74dac 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -549,8 +549,6 @@ stex_slave_alloc(struct scsi_device *sdev) /* Cheat: usually extracted from Inquiry data */ sdev->tagged_supported = 1; - scsi_adjust_queue_depth(sdev, 0, sdev->host->can_queue); - return 0; } diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 37f5fd8ed765..ff8befbdf17c 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1429,8 +1429,7 @@ static void storvsc_device_destroy(struct scsi_device *sdevice) static int storvsc_device_configure(struct scsi_device *sdevice) { - scsi_adjust_queue_depth(sdevice, MSG_SIMPLE_TAG, - STORVSC_MAX_IO_REQUESTS); + scsi_adjust_queue_depth(sdevice, STORVSC_MAX_IO_REQUESTS); blk_queue_max_segment_size(sdevice->request_queue, PAGE_SIZE); diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index e59e6f96b725..3557b385251a 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -820,9 +820,7 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev) if (reqtags > SYM_CONF_MAX_TAG) reqtags = SYM_CONF_MAX_TAG; depth_to_use = reqtags ? reqtags : 1; - scsi_adjust_queue_depth(sdev, - sdev->tagged_supported ? MSG_SIMPLE_TAG : 0, - depth_to_use); + scsi_adjust_queue_depth(sdev, depth_to_use); lp->s.scdev_depth = depth_to_use; sym_tune_dev_queuing(tp, sdev->lun, reqtags); diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 6369f9a282f1..844c9a048c00 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2185,9 +2185,16 @@ static int dc390_slave_configure(struct scsi_device *sdev) struct dc390_dcb *dcb = (struct dc390_dcb *)sdev->hostdata; acb->scan_devices = 0; + + /* + * XXX: Note that while this driver used to called scsi_activate_tcq, + * it never actually set a tag type, so emulate the old behavior. + */ + scsi_set_tag_type(sdev, 0); + if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_adjust_queue_depth(sdev, 0, acb->TagMaxNum); + scsi_adjust_queue_depth(sdev, acb->TagMaxNum); } return 0; diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index d8dcf36aed11..aa0f4035afaf 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -696,25 +696,25 @@ static int u14_34f_slave_configure(struct scsi_device *dev) { if (TLDEV(dev->type) && dev->tagged_supported) if (tag_mode == TAG_SIMPLE) { - scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", simple tags"; } else if (tag_mode == TAG_ORDERED) { - scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", ordered tags"; } else { - scsi_adjust_queue_depth(dev, 0, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", no tags"; } else if (TLDEV(dev->type) && linked_comm) { - scsi_adjust_queue_depth(dev, 0, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", untagged"; } else { - scsi_adjust_queue_depth(dev, 0, utqd); + scsi_adjust_queue_depth(dev, utqd); tag_suffix = ""; } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 48c7f9e8f256..5eb4931e2adc 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2696,7 +2696,7 @@ static void ufshcd_set_queue_depth(struct scsi_device *sdev) dev_dbg(hba->dev, "%s: activate tcq with queue depth %d\n", __func__, lun_qdepth); if (sdev->tagged_supported) - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), lun_qdepth); + scsi_adjust_queue_depth(sdev, lun_qdepth); } /* @@ -2808,7 +2808,7 @@ static int ufshcd_change_queue_depth(struct scsi_device *sdev, case SCSI_QDEPTH_RAMP_UP: if (!sdev->tagged_supported) depth = 1; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index b83846fc7859..355afbc7fde1 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -683,9 +683,7 @@ static int virtscsi_change_queue_depth(struct scsi_device *sdev, break; case SCSI_QDEPTH_RAMP_UP: /* Raise qdepth after BUSY state resolved */ case SCSI_QDEPTH_DEFAULT: /* Manual change via sysfs */ - scsi_adjust_queue_depth(sdev, - scsi_get_tag_type(sdev), - min(max_depth, qdepth)); + scsi_adjust_queue_depth(sdev, min(max_depth, qdepth)); break; default: return -EOPNOTSUPP; diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c index 53a3eb6c0634..c3b4f8b3a3a5 100644 --- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -522,7 +522,7 @@ static int pvscsi_change_queue_depth(struct scsi_device *sdev, max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 120a851df0d7..0ed96644ec94 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -121,13 +121,13 @@ static int tcm_loop_change_queue_depth( { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); break; case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; default: return -EOPNOTSUPP; @@ -404,19 +404,6 @@ static int tcm_loop_slave_alloc(struct scsi_device *sd) return 0; } -static int tcm_loop_slave_configure(struct scsi_device *sd) -{ - if (sd->tagged_supported) { - scsi_adjust_queue_depth(sd, MSG_SIMPLE_TAG, - sd->host->cmd_per_lun); - } else { - scsi_adjust_queue_depth(sd, 0, - sd->host->cmd_per_lun); - } - - return 0; -} - static struct scsi_host_template tcm_loop_driver_template = { .show_info = tcm_loop_show_info, .proc_name = "tcm_loopback", @@ -434,7 +421,6 @@ static struct scsi_host_template tcm_loop_driver_template = { .max_sectors = 0xFFFF, .use_clustering = DISABLE_CLUSTERING, .slave_alloc = tcm_loop_slave_alloc, - .slave_configure = tcm_loop_slave_configure, .module = THIS_MODULE, .use_blk_tags = 1, }; diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index ee69b82fc7d1..33f211b56a42 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -799,7 +799,7 @@ static int uas_slave_configure(struct scsi_device *sdev) if (devinfo->flags & US_FL_NO_REPORT_OPCODES) sdev->no_report_opcodes = 1; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, devinfo->qdepth - 2); + scsi_adjust_queue_depth(sdev, devinfo->qdepth - 2); return 0; } diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index e8fecb5ea79a..0aeaa003c3c1 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -380,7 +380,7 @@ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, #define __shost_for_each_device(sdev, shost) \ list_for_each_entry((sdev), &((shost)->__devices), siblings) -extern void scsi_adjust_queue_depth(struct scsi_device *, int, int); +extern void scsi_adjust_queue_depth(struct scsi_device *, int); extern int scsi_track_queue_full(struct scsi_device *, int); extern int scsi_set_medium_removal(struct scsi_device *, char); -- cgit v1.2.3 From c40ecc12cfdb630332198a04e2832ae8218a61f1 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 13 Nov 2014 14:25:11 +0100 Subject: scsi: avoid ->change_queue_depth indirection for queue full tracking All drivers use the implementation for ramping the queue up and down, so instead of overloading the change_queue_depth method call the implementation diretly if the driver opts into it by setting the track_queue_depth flag in the host template. Note that a few drivers validated the new queue depth in their change_queue_depth method, but as we never go over the queue depth set during slave_configure or the sysfs file this isn't nessecary and can safely be removed. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke Reviewed-by: Venkatesh Srinivas --- drivers/infiniband/ulp/iser/iscsi_iser.c | 1 + drivers/infiniband/ulp/srp/ib_srp.c | 20 ++++++------- drivers/s390/scsi/zfcp_scsi.c | 15 ++-------- drivers/scsi/aic94xx/aic94xx_init.c | 1 + drivers/scsi/be2iscsi/be_main.c | 2 +- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 1 + drivers/scsi/bnx2i/bnx2i_iscsi.c | 1 + drivers/scsi/cxgbi/cxgb3i/cxgb3i.c | 1 + drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 1 + drivers/scsi/fcoe/fcoe.c | 1 + drivers/scsi/fnic/fnic_main.c | 1 + drivers/scsi/ibmvscsi/ibmvfc.c | 1 + drivers/scsi/isci/init.c | 1 + drivers/scsi/iscsi_tcp.c | 1 + drivers/scsi/libfc/fc_fcp.c | 14 +-------- drivers/scsi/libiscsi.c | 14 +-------- drivers/scsi/libsas/sas_scsi_host.c | 17 ++--------- drivers/scsi/lpfc/lpfc_scsi.c | 23 ++------------- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 10 ++----- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 10 ++----- drivers/scsi/mvsas/mv_init.c | 1 + drivers/scsi/pm8001/pm8001_init.c | 1 + drivers/scsi/qla2xxx/qla_os.c | 48 ++----------------------------- drivers/scsi/qla4xxx/ql4_os.c | 16 +++-------- drivers/scsi/scsi_debug.c | 49 ++++++++------------------------ drivers/scsi/scsi_error.c | 15 ++++------ drivers/scsi/ufs/ufshcd.c | 14 ++------- drivers/scsi/virtio_scsi.c | 15 ++-------- drivers/target/loopback/tcm_loop.c | 15 ++-------- include/scsi/scsi_host.h | 7 +++-- 30 files changed, 73 insertions(+), 244 deletions(-) (limited to 'include') diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index f42ab14105ac..812a2891de58 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -922,6 +922,7 @@ static struct scsi_host_template iscsi_iser_sht = { .use_clustering = DISABLE_CLUSTERING, .proc_name = "iscsi_iser", .this_id = -1, + .track_queue_depth = 1, }; static struct iscsi_transport iscsi_iser_transport = { diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 57b5ff1bbcb6..98a303558930 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2402,7 +2402,7 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event) * srp_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP + * @reason: SCSI_QDEPTH_DEFAULT * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. @@ -2412,18 +2412,13 @@ srp_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { struct Scsi_Host *shost = sdev->host; int max_depth; - if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP) { - max_depth = shost->can_queue; - if (!sdev->tagged_supported) - max_depth = 1; - if (qdepth > max_depth) - qdepth = max_depth; - scsi_adjust_queue_depth(sdev, qdepth); - } else if (reason == SCSI_QDEPTH_QFULL) - scsi_track_queue_full(sdev, qdepth); - else - return -EOPNOTSUPP; + max_depth = shost->can_queue; + if (!sdev->tagged_supported) + max_depth = 1; + if (qdepth > max_depth) + qdepth = max_depth; + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } @@ -2766,6 +2761,7 @@ static struct scsi_host_template srp_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = srp_host_attrs, .use_blk_tags = 1, + .track_queue_depth = 1, }; static int srp_sdev_count(struct Scsi_Host *host) diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index b5dfa51f396f..179bf3d8af6c 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -35,19 +35,7 @@ MODULE_PARM_DESC(allow_lun_scan, "For NPIV, scan and attach all storage LUNs"); static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth, int reason) { - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, depth); - break; - case SCSI_QDEPTH_QFULL: - scsi_track_queue_full(sdev, depth); - break; - case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, depth); - break; - default: - return -EOPNOTSUPP; - } + scsi_adjust_queue_depth(sdev, depth); return sdev->queue_depth; } @@ -320,6 +308,7 @@ static struct scsi_host_template zfcp_scsi_host_template = { .use_clustering = 1, .shost_attrs = zfcp_sysfs_shost_attrs, .sdev_attrs = zfcp_sysfs_sdev_attrs, + .track_queue_depth = 1, }; /** diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 579dc2f460c4..a64cf932d03d 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -84,6 +84,7 @@ static struct scsi_host_template aic94xx_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .use_blk_tags = 1, + .track_queue_depth = 1, }; static int asd_map_memio(struct asd_ha_struct *asd_ha) diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 30d74a06b993..d9b999a3416f 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -570,7 +570,7 @@ static struct scsi_host_template beiscsi_sht = { .cmd_per_lun = BEISCSI_CMD_PER_LUN, .use_clustering = ENABLE_CLUSTERING, .vendor_id = SCSI_NL_VID_TYPE_PCI | BE_VENDOR_ID, - + .track_queue_depth = 1, }; static struct scsi_transport_template *beiscsi_scsi_transport; diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 2262c75f45d8..cc537972f3ea 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2792,6 +2792,7 @@ static struct scsi_host_template bnx2fc_shost_template = { .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, .max_sectors = 1024, .use_blk_tags = 1, + .track_queue_depth = 1, }; static struct libfc_function_template bnx2fc_libfc_fcn_templ = { diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index 7a36388822aa..9de1c20bb0f8 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -2268,6 +2268,7 @@ static struct scsi_host_template bnx2i_host_template = { .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = ISCSI_MAX_BDS_PER_CMD, .shost_attrs = bnx2i_dev_attributes, + .track_queue_depth = 1, }; struct iscsi_transport bnx2i_iscsi_transport = { diff --git a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c index 49692a1ac44a..99ea67dcdd2a 100644 --- a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c +++ b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c @@ -96,6 +96,7 @@ static struct scsi_host_template cxgb3i_host_template = { .target_alloc = iscsi_target_alloc, .use_clustering = DISABLE_CLUSTERING, .this_id = -1, + .track_queue_depth = 1, }; static struct iscsi_transport cxgb3i_iscsi_transport = { diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c index 81bb3bd7909d..af86e8f57b84 100644 --- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c @@ -99,6 +99,7 @@ static struct scsi_host_template cxgb4i_host_template = { .target_alloc = iscsi_target_alloc, .use_clustering = DISABLE_CLUSTERING, .this_id = -1, + .track_queue_depth = 1, }; static struct iscsi_transport cxgb4i_iscsi_transport = { diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index a3eeb6842499..97229860398f 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -289,6 +289,7 @@ static struct scsi_host_template fcoe_shost_template = { .sg_tablesize = SG_ALL, .max_sectors = 0xffff, .use_blk_tags = 1, + .track_queue_depth = 1, }; /** diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 1e5706ed9a40..86b496c8633d 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -120,6 +120,7 @@ static struct scsi_host_template fnic_host_template = { .max_sectors = 0xffff, .shost_attrs = fnic_attrs, .use_blk_tags = 1, + .track_queue_depth = 1, }; static void diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 147b80e07b00..381449d5be76 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -3103,6 +3103,7 @@ static struct scsi_host_template driver_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = ibmvfc_attrs, .use_blk_tags = 1, + .track_queue_depth = 1, }; /** diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 897562056018..a81e546595dd 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -173,6 +173,7 @@ static struct scsi_host_template isci_sht = { .ioctl = sas_ioctl, .shost_attrs = isci_host_attrs, .use_blk_tags = 1, + .track_queue_depth = 1, }; static struct sas_domain_function_template isci_transport_ops = { diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 427af0f24b0f..a575d845b667 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -966,6 +966,7 @@ static struct scsi_host_template iscsi_sw_tcp_sht = { .target_alloc = iscsi_target_alloc, .proc_name = "iscsi_tcp", .this_id = -1, + .track_queue_depth = 1, }; static struct iscsi_transport iscsi_sw_tcp_transport = { diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index bf954ee050f8..0d2d024e77c5 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2173,19 +2173,7 @@ EXPORT_SYMBOL(fc_slave_alloc); */ int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, qdepth); - break; - case SCSI_QDEPTH_QFULL: - scsi_track_queue_full(sdev, qdepth); - break; - case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, qdepth); - break; - default: - return -EOPNOTSUPP; - } + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } EXPORT_SYMBOL(fc_change_queue_depth); diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index d521624dedfb..79e977484ad5 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1773,19 +1773,7 @@ EXPORT_SYMBOL_GPL(iscsi_queuecommand); int iscsi_change_queue_depth(struct scsi_device *sdev, int depth, int reason) { - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, depth); - break; - case SCSI_QDEPTH_QFULL: - scsi_track_queue_full(sdev, depth); - break; - case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, depth); - break; - default: - return -EOPNOTSUPP; - } + scsi_adjust_queue_depth(sdev, depth); return sdev->queue_depth; } EXPORT_SYMBOL_GPL(iscsi_change_queue_depth); diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 89e8b687a679..914e41165137 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -961,20 +961,9 @@ int sas_change_queue_depth(struct scsi_device *sdev, int depth, int reason) return __ata_change_queue_depth(dev->sata_dev.ap, sdev, depth, reason); - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - case SCSI_QDEPTH_RAMP_UP: - if (!sdev->tagged_supported) - depth = 1; - scsi_adjust_queue_depth(sdev, depth); - break; - case SCSI_QDEPTH_QFULL: - scsi_track_queue_full(sdev, depth); - break; - default: - return -EOPNOTSUPP; - } - + if (!sdev->tagged_supported) + depth = 1; + scsi_adjust_queue_depth(sdev, depth); return depth; } diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 80351fff1a07..522854920369 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -255,26 +255,7 @@ lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) static int lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { - struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; - - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - /* change request from sysfs, fall through */ - case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, qdepth); - break; - case SCSI_QDEPTH_QFULL: - if (scsi_track_queue_full(sdev, qdepth) == 0) - return sdev->queue_depth; - - lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, - "0711 detected queue full - lun queue " - "depth adjusted to %d.\n", sdev->queue_depth); - break; - default: - return -EOPNOTSUPP; - } - + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } @@ -5918,6 +5899,7 @@ struct scsi_host_template lpfc_template = { .change_queue_depth = lpfc_change_queue_depth, .change_queue_type = scsi_change_queue_type, .use_blk_tags = 1, + .track_queue_depth = 1, }; struct scsi_host_template lpfc_vport_template = { @@ -5942,4 +5924,5 @@ struct scsi_host_template lpfc_vport_template = { .change_queue_depth = lpfc_change_queue_depth, .change_queue_type = scsi_change_queue_type, .use_blk_tags = 1, + .track_queue_depth = 1, }; diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 42fef914d441..b006e1e9fcb8 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1229,7 +1229,7 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) * _scsih_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP + * @reason: SCSI_QDEPTH_DEFAULT * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. @@ -1237,12 +1237,7 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) static int _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { - if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP) - _scsih_adjust_queue_depth(sdev, qdepth); - else if (reason == SCSI_QDEPTH_QFULL) - scsi_track_queue_full(sdev, qdepth); - else - return -EOPNOTSUPP; + _scsih_adjust_queue_depth(sdev, qdepth); if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), " @@ -7637,6 +7632,7 @@ static struct scsi_host_template scsih_driver_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = mpt2sas_host_attrs, .sdev_attrs = mpt2sas_dev_attrs, + .track_queue_depth = 1, }; /** diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index b23c2e7588e5..568dcaed36cb 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1097,7 +1097,7 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) * _scsih_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP + * @reason: SCSI_QDEPTH_DEFAULT * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. @@ -1105,12 +1105,7 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) static int _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { - if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP) - _scsih_adjust_queue_depth(sdev, qdepth); - else if (reason == SCSI_QDEPTH_QFULL) - scsi_track_queue_full(sdev, qdepth); - else - return -EOPNOTSUPP; + _scsih_adjust_queue_depth(sdev, qdepth); if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), " \ @@ -7266,6 +7261,7 @@ static struct scsi_host_template scsih_driver_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = mpt3sas_host_attrs, .sdev_attrs = mpt3sas_dev_attrs, + .track_queue_depth = 1, }; /** diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index d3c1fa5e76fb..ac7c03078409 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -77,6 +77,7 @@ static struct scsi_host_template mvs_sht = { .ioctl = sas_ioctl, .shost_attrs = mvst_host_attrs, .use_blk_tags = 1, + .track_queue_depth = 1, }; static struct sas_domain_function_template mvs_transport_ops = { diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 3ff759a3b74d..19ae6cab5e44 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -90,6 +90,7 @@ static struct scsi_host_template pm8001_sht = { .ioctl = sas_ioctl, .shost_attrs = pm8001_host_attrs, .use_blk_tags = 1, + .track_queue_depth = 1, }; /** diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 33166ebec7d8..20049b176b64 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -270,6 +270,7 @@ struct scsi_host_template qla2xxx_driver_template = { .supported_mode = MODE_INITIATOR, .use_blk_tags = 1, + .track_queue_depth = 1, }; static struct scsi_transport_template *qla2xxx_transport_template = NULL; @@ -1415,55 +1416,10 @@ qla2xxx_slave_destroy(struct scsi_device *sdev) sdev->hostdata = NULL; } -static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth) -{ - fc_port_t *fcport = (struct fc_port *) sdev->hostdata; - - if (!scsi_track_queue_full(sdev, qdepth)) - return; - - ql_dbg(ql_dbg_io, fcport->vha, 0x3029, - "Queue depth adjusted-down to %d for nexus=%ld:%d:%llu.\n", - sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun); -} - -static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth) -{ - fc_port_t *fcport = sdev->hostdata; - struct scsi_qla_host *vha = fcport->vha; - struct req_que *req = NULL; - - req = vha->req; - if (!req) - return; - - if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth) - return; - - scsi_adjust_queue_depth(sdev, qdepth); - - ql_dbg(ql_dbg_io, vha, 0x302a, - "Queue depth adjusted-up to %d for nexus=%ld:%d:%llu.\n", - sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun); -} - static int qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, qdepth); - break; - case SCSI_QDEPTH_QFULL: - qla2x00_handle_queue_full(sdev, qdepth); - break; - case SCSI_QDEPTH_RAMP_UP: - qla2x00_adjust_sdev_qdepth_up(sdev, qdepth); - break; - default: - return -EOPNOTSUPP; - } - + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index f8724f2e0158..2bfde373ea2b 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -164,8 +164,6 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); static int qla4xxx_slave_alloc(struct scsi_device *device); static umode_t qla4_attr_is_visible(int param_type, int param); static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); -static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason); /* * iSCSI Flash DDB sysfs entry points @@ -203,7 +201,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .eh_timed_out = qla4xxx_eh_cmd_timed_out, .slave_alloc = qla4xxx_slave_alloc, - .change_queue_depth = qla4xxx_change_queue_depth, + .change_queue_depth = iscsi_change_queue_depth, .this_id = -1, .cmd_per_lun = 3, @@ -9065,15 +9063,6 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) return 0; } -static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) -{ - if (!ql4xqfulltracking) - return -EOPNOTSUPP; - - return iscsi_change_queue_depth(sdev, qdepth, reason); -} - /** * qla4xxx_del_from_active_array - returns an active srb * @ha: Pointer to host adapter structure. @@ -9873,6 +9862,9 @@ static int __init qla4xxx_module_init(void) { int ret; + if (ql4xqfulltracking) + qla4xxx_driver_template.track_queue_depth = 1; + /* Allocate cache for SRBs. */ srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, SLAB_HWCACHE_ALIGN, NULL); diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index fce393f3e7e0..84cf82e0782d 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -4472,7 +4472,6 @@ static int sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) { int num_in_q = 0; - int bad = 0; unsigned long iflags; struct sdebug_dev_info *devip; @@ -4484,43 +4483,18 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) } num_in_q = atomic_read(&devip->num_in_q); spin_unlock_irqrestore(&queued_arr_lock, iflags); - if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP) { - if (qdepth < 1) - qdepth = 1; - /* allow to exceed max host queued_arr elements for testing */ - if (qdepth > SCSI_DEBUG_CANQUEUE + 10) - qdepth = SCSI_DEBUG_CANQUEUE + 10; - scsi_adjust_queue_depth(sdev, qdepth); - } else if (reason == SCSI_QDEPTH_QFULL) - scsi_track_queue_full(sdev, qdepth); - else - bad = 1; - if (bad) - sdev_printk(KERN_WARNING, sdev, - "%s: unknown reason=0x%x\n", __func__, reason); + + if (qdepth < 1) + qdepth = 1; + /* allow to exceed max host queued_arr elements for testing */ + if (qdepth > SCSI_DEBUG_CANQUEUE + 10) + qdepth = SCSI_DEBUG_CANQUEUE + 10; + scsi_adjust_queue_depth(sdev, qdepth); + if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) { - if (SCSI_QDEPTH_QFULL == reason) - sdev_printk(KERN_INFO, sdev, - "%s: -> %d, num_in_q=%d, reason: queue full\n", - __func__, qdepth, num_in_q); - else { - const char *cp; - - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - cp = "default (sysfs ?)"; - break; - case SCSI_QDEPTH_RAMP_UP: - cp = "ramp up"; - break; - default: - cp = "unknown"; - break; - } - sdev_printk(KERN_INFO, sdev, - "%s: qdepth=%d, num_in_q=%d, reason: %s\n", - __func__, qdepth, num_in_q, cp); - } + sdev_printk(KERN_INFO, sdev, + "%s: qdepth=%d, num_in_q=%d\n", + __func__, qdepth, num_in_q); } return sdev->queue_depth; } @@ -4576,6 +4550,7 @@ static struct scsi_host_template sdebug_driver_template = { .max_sectors = -1U, .use_clustering = DISABLE_CLUSTERING, .module = THIS_MODULE, + .track_queue_depth = 1, }; static int sdebug_driver_probe(struct device * dev) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index a6f6b9222b51..2d0f5155ee51 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -610,7 +610,7 @@ static void scsi_handle_queue_ramp_up(struct scsi_device *sdev) struct scsi_host_template *sht = sdev->host->hostt; struct scsi_device *tmp_sdev; - if (!sht->change_queue_depth || + if (!sht->track_queue_depth || sdev->queue_depth >= sdev->max_queue_depth) return; @@ -631,12 +631,8 @@ static void scsi_handle_queue_ramp_up(struct scsi_device *sdev) tmp_sdev->id != sdev->id || tmp_sdev->queue_depth == sdev->max_queue_depth) continue; - /* - * call back into LLD to increase queue_depth by one - * with ramp up reason code. - */ - sht->change_queue_depth(tmp_sdev, tmp_sdev->queue_depth + 1, - SCSI_QDEPTH_RAMP_UP); + + scsi_adjust_queue_depth(tmp_sdev, tmp_sdev->queue_depth + 1); sdev->last_queue_ramp_up = jiffies; } } @@ -646,7 +642,7 @@ static void scsi_handle_queue_full(struct scsi_device *sdev) struct scsi_host_template *sht = sdev->host->hostt; struct scsi_device *tmp_sdev; - if (!sht->change_queue_depth) + if (!sht->track_queue_depth) return; shost_for_each_device(tmp_sdev, sdev->host) { @@ -658,8 +654,7 @@ static void scsi_handle_queue_full(struct scsi_device *sdev) * the device when we got the queue full so we start * from the highest possible value and work our way down. */ - sht->change_queue_depth(tmp_sdev, tmp_sdev->queue_depth - 1, - SCSI_QDEPTH_QFULL); + scsi_track_queue_full(tmp_sdev, tmp_sdev->queue_depth - 1); } } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 362b818ad827..e96ab253e3e5 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2800,18 +2800,7 @@ static int ufshcd_change_queue_depth(struct scsi_device *sdev, if (depth > hba->nutrs) depth = hba->nutrs; - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, depth); - break; - case SCSI_QDEPTH_QFULL: - scsi_track_queue_full(sdev, depth); - break; - default: - return -EOPNOTSUPP; - } - + scsi_adjust_queue_depth(sdev, depth); return depth; } @@ -4231,6 +4220,7 @@ static struct scsi_host_template ufshcd_driver_template = { .can_queue = UFSHCD_CAN_QUEUE, .max_host_blocked = 1, .use_blk_tags = 1, + .track_queue_depth = 1, }; static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg, diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index 8e40347da0a8..0f7e4c7ff8c2 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -691,18 +691,7 @@ static int virtscsi_change_queue_depth(struct scsi_device *sdev, struct Scsi_Host *shost = sdev->host; int max_depth = shost->cmd_per_lun; - switch (reason) { - case SCSI_QDEPTH_QFULL: /* Drop qdepth in response to BUSY state */ - scsi_track_queue_full(sdev, qdepth); - break; - case SCSI_QDEPTH_RAMP_UP: /* Raise qdepth after BUSY state resolved */ - case SCSI_QDEPTH_DEFAULT: /* Manual change via sysfs */ - scsi_adjust_queue_depth(sdev, min(max_depth, qdepth)); - break; - default: - return -EOPNOTSUPP; - } - + scsi_adjust_queue_depth(sdev, min(max_depth, qdepth)); return sdev->queue_depth; } @@ -770,6 +759,7 @@ static struct scsi_host_template virtscsi_host_template_single = { .use_clustering = ENABLE_CLUSTERING, .target_alloc = virtscsi_target_alloc, .target_destroy = virtscsi_target_destroy, + .track_queue_depth = 1, }; static struct scsi_host_template virtscsi_host_template_multi = { @@ -788,6 +778,7 @@ static struct scsi_host_template virtscsi_host_template_multi = { .use_clustering = ENABLE_CLUSTERING, .target_alloc = virtscsi_target_alloc, .target_destroy = virtscsi_target_destroy, + .track_queue_depth = 1, }; #define virtscsi_config_get(vdev, fld) \ diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 0ed96644ec94..670b75a62243 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -119,19 +119,7 @@ static int tcm_loop_change_queue_depth( int depth, int reason) { - switch (reason) { - case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, depth); - break; - case SCSI_QDEPTH_QFULL: - scsi_track_queue_full(sdev, depth); - break; - case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, depth); - break; - default: - return -EOPNOTSUPP; - } + scsi_adjust_queue_depth(sdev, depth); return sdev->queue_depth; } @@ -423,6 +411,7 @@ static struct scsi_host_template tcm_loop_driver_template = { .slave_alloc = tcm_loop_slave_alloc, .module = THIS_MODULE, .use_blk_tags = 1, + .track_queue_depth = 1, }; static int tcm_loop_driver_probe(struct device *dev) diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 61a81bf77e28..a0b13a5cd25e 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -48,8 +48,6 @@ struct blk_queue_tags; enum { SCSI_QDEPTH_DEFAULT, /* default requested change, e.g. from sysfs */ - SCSI_QDEPTH_QFULL, /* scsi-ml requested due to queue full */ - SCSI_QDEPTH_RAMP_UP, /* scsi-ml requested due to threshold event */ }; struct scsi_host_template { @@ -426,6 +424,11 @@ struct scsi_host_template { */ unsigned use_blk_tags:1; + /* + * Track QUEUE_FULL events and reduce queue depth on demand. + */ + unsigned track_queue_depth:1; + /* * This specifies the mode that a LLD supports. */ -- cgit v1.2.3 From db5ed4dfd5dd0142ec36ff7b335e0ec3b836b3e6 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 13 Nov 2014 15:08:42 +0100 Subject: scsi: drop reason argument from ->change_queue_depth Drop the now unused reason argument from the ->change_queue_depth method. Also add a return value to scsi_adjust_queue_depth, and rename it to scsi_change_queue_depth now that it can be used as the default ->change_queue_depth implementation. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke --- Documentation/scsi/scsi_mid_low_api.txt | 20 +++++++-------- drivers/ata/libata-scsi.c | 17 ++++--------- drivers/ata/sata_nv.c | 2 +- drivers/infiniband/ulp/iser/iscsi_iser.c | 2 +- drivers/infiniband/ulp/srp/ib_srp.c | 7 ++---- drivers/message/fusion/mptscsih.c | 12 +++------ drivers/message/fusion/mptscsih.h | 3 +-- drivers/s390/scsi/zfcp_scsi.c | 11 ++------- drivers/scsi/3w-9xxx.c | 13 +--------- drivers/scsi/3w-sas.c | 13 +--------- drivers/scsi/3w-xxxx.c | 13 +--------- drivers/scsi/53c700.c | 19 ++++++-------- drivers/scsi/BusLogic.c | 4 +-- drivers/scsi/aacraid/linit.c | 18 ++++++-------- drivers/scsi/advansys.c | 8 +++--- drivers/scsi/aic7xxx/aic79xx_osm.c | 4 +-- drivers/scsi/aic7xxx/aic7xxx_osm.c | 4 +-- drivers/scsi/arcmsr/arcmsr_hba.c | 9 ++----- drivers/scsi/be2iscsi/be_main.c | 2 +- drivers/scsi/bfa/bfad_im.c | 4 +-- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +- drivers/scsi/bnx2i/bnx2i_iscsi.c | 2 +- drivers/scsi/csiostor/csio_scsi.c | 2 +- drivers/scsi/cxgbi/cxgb3i/cxgb3i.c | 2 +- drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 2 +- drivers/scsi/dpt_i2o.c | 2 +- drivers/scsi/eata.c | 6 ++--- drivers/scsi/esas2r/esas2r.h | 1 - drivers/scsi/esas2r/esas2r_main.c | 11 +-------- drivers/scsi/esp_scsi.c | 2 +- drivers/scsi/fcoe/fcoe.c | 2 +- drivers/scsi/fnic/fnic_main.c | 4 +-- drivers/scsi/hpsa.c | 16 +----------- drivers/scsi/hptiop.c | 8 ++---- drivers/scsi/ibmvscsi/ibmvfc.c | 9 ++----- drivers/scsi/ibmvscsi/ibmvscsi.c | 10 ++------ drivers/scsi/ipr.c | 10 +++----- drivers/scsi/ips.c | 2 +- drivers/scsi/iscsi_tcp.c | 2 +- drivers/scsi/libfc/fc_fcp.c | 15 +---------- drivers/scsi/libiscsi.c | 7 ------ drivers/scsi/libsas/sas_scsi_host.c | 12 ++++----- drivers/scsi/lpfc/lpfc_scsi.c | 26 +++----------------- drivers/scsi/megaraid/megaraid_mbox.c | 21 +--------------- drivers/scsi/megaraid/megaraid_sas_base.c | 13 +--------- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 10 +++----- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 10 +++----- drivers/scsi/ncr53c8xx.c | 2 +- drivers/scsi/pmcraid.c | 12 ++------- drivers/scsi/qla1280.c | 4 +-- drivers/scsi/qla2xxx/qla_os.c | 12 ++------- drivers/scsi/qla4xxx/ql4_os.c | 4 +-- drivers/scsi/scsi.c | 41 +++++++++++-------------------- drivers/scsi/scsi_debug.c | 4 +-- drivers/scsi/scsi_error.c | 2 +- drivers/scsi/scsi_scan.c | 2 +- drivers/scsi/scsi_sysfs.c | 3 +-- drivers/scsi/storvsc_drv.c | 2 +- drivers/scsi/sym53c8xx_2/sym_glue.c | 2 +- drivers/scsi/tmscsim.c | 2 +- drivers/scsi/u14-34f.c | 10 ++++---- drivers/scsi/ufs/ufshcd.c | 13 +++------- drivers/scsi/virtio_scsi.c | 8 ++---- drivers/scsi/vmw_pvscsi.c | 12 ++------- drivers/scsi/wd7000.c | 1 - drivers/target/loopback/tcm_loop.c | 15 +---------- drivers/usb/storage/uas.c | 2 +- include/linux/libata.h | 4 +-- include/scsi/libfc.h | 1 - include/scsi/libiscsi.h | 2 -- include/scsi/libsas.h | 3 +-- include/scsi/scsi_device.h | 2 +- include/scsi/scsi_host.h | 8 ++---- 73 files changed, 155 insertions(+), 412 deletions(-) (limited to 'include') diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index bee7d86b9dcc..731bc4f4c5e6 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -149,7 +149,7 @@ scsi_add_host() ----> scsi_scan_host() -------+ | slave_alloc() - slave_configure() --> scsi_adjust_queue_depth() + slave_configure() --> scsi_change_queue_depth() | slave_alloc() slave_configure() @@ -159,7 +159,7 @@ scsi_scan_host() -------+ ------------------------------------------------------------ If the LLD wants to adjust the default queue settings, it can invoke -scsi_adjust_queue_depth() in its slave_configure() routine. +scsi_change_queue_depth() in its slave_configure() routine. *** For scsi devices that the mid level tries to scan but do not respond, a slave_alloc(), slave_destroy() pair is called. @@ -203,7 +203,7 @@ LLD mid level LLD scsi_add_device() ------+ | slave_alloc() - slave_configure() [--> scsi_adjust_queue_depth()] + slave_configure() [--> scsi_change_queue_depth()] ------------------------------------------------------------ In a similar fashion, an LLD may become aware that a SCSI device has been @@ -261,7 +261,7 @@ init_this_scsi_driver() ----+ | scsi_register() | slave_alloc() - slave_configure() --> scsi_adjust_queue_depth() + slave_configure() --> scsi_change_queue_depth() slave_alloc() *** slave_destroy() *** | @@ -271,7 +271,7 @@ init_this_scsi_driver() ----+ slave_destroy() *** ------------------------------------------------------------ -The mid level invokes scsi_adjust_queue_depth() with "cmd_per_lun" for that +The mid level invokes scsi_change_queue_depth() with "cmd_per_lun" for that host as the queue length. These settings can be overridden by a slave_configure() supplied by the LLD. @@ -368,7 +368,7 @@ names all start with "scsi_". Summary: scsi_add_device - creates new scsi device (lu) instance scsi_add_host - perform sysfs registration and set up transport class - scsi_adjust_queue_depth - change the queue depth on a SCSI device + scsi_change_queue_depth - change the queue depth on a SCSI device scsi_bios_ptable - return copy of block device's partition table scsi_block_requests - prevent further commands being queued to given host scsi_host_alloc - return a new scsi_host instance whose refcount==1 @@ -436,7 +436,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) /** - * scsi_adjust_queue_depth - allow LLD to change queue depth on a SCSI device + * scsi_change_queue_depth - allow LLD to change queue depth on a SCSI device * @sdev: pointer to SCSI device to change queue depth on * @tags Number of tags allowed if tagged queuing enabled, * or number of commands the LLD can queue up @@ -453,7 +453,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) * Defined in: drivers/scsi/scsi.c [see source code for more notes] * **/ -void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) +int scsi_change_queue_depth(struct scsi_device *sdev, int tags) /** @@ -1214,7 +1214,7 @@ of interest: for disk firmware uploads. cmd_per_lun - maximum number of commands that can be queued on devices controlled by the host. Overridden by LLD calls to - scsi_adjust_queue_depth(). + scsi_change_queue_depth(). unchecked_isa_dma - 1=>only use bottom 16 MB of ram (ISA DMA addressing restriction), 0=>can use full 32 bit (or better) DMA address space @@ -1254,7 +1254,7 @@ struct scsi_cmnd Instances of this structure convey SCSI commands to the LLD and responses back to the mid level. The SCSI mid level will ensure that no more SCSI commands become queued against the LLD than are indicated by -scsi_adjust_queue_depth() (or struct Scsi_Host::cmd_per_lun). There will +scsi_change_queue_depth() (or struct Scsi_Host::cmd_per_lun). There will be at least one instance of struct scsi_cmnd available for each SCSI device. Members of interest: cmnd - array containing SCSI command diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index c8bb6abbf12c..de46385dbe71 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1164,7 +1164,7 @@ static int ata_scsi_dev_config(struct scsi_device *sdev, depth = min(sdev->host->can_queue, ata_id_queue_depth(dev->id)); depth = min(ATA_MAX_QUEUE - 1, depth); - scsi_adjust_queue_depth(sdev, depth); + scsi_change_queue_depth(sdev, depth); } blk_queue_flush_queueable(q, false); @@ -1243,21 +1243,17 @@ void ata_scsi_slave_destroy(struct scsi_device *sdev) * @ap: ATA port to which the device change the queue depth * @sdev: SCSI device to configure queue depth for * @queue_depth: new queue depth - * @reason: calling context * * libsas and libata have different approaches for associating a sdev to * its ata_port. * */ int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, - int queue_depth, int reason) + int queue_depth) { struct ata_device *dev; unsigned long flags; - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (queue_depth < 1 || queue_depth == sdev->queue_depth) return sdev->queue_depth; @@ -1282,15 +1278,13 @@ int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, if (sdev->queue_depth == queue_depth) return -EINVAL; - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; + return scsi_change_queue_depth(sdev, queue_depth); } /** * ata_scsi_change_queue_depth - SCSI callback for queue depth config * @sdev: SCSI device to configure queue depth for * @queue_depth: new queue depth - * @reason: calling context * * This is libata standard hostt->change_queue_depth callback. * SCSI will call into this callback when user tries to set queue @@ -1302,12 +1296,11 @@ int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, * RETURNS: * Newly configured queue depth. */ -int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth, - int reason) +int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth) { struct ata_port *ap = ata_shost_to_port(sdev->host); - return __ata_change_queue_depth(ap, sdev, queue_depth, reason); + return __ata_change_queue_depth(ap, sdev, queue_depth); } /** diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index cdf99fac139a..1db6f5ce5e89 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -1951,7 +1951,7 @@ static int nv_swncq_slave_config(struct scsi_device *sdev) ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num)); if (strncmp(model_num, "Maxtor", 6) == 0) { - ata_scsi_change_queue_depth(sdev, 1, SCSI_QDEPTH_DEFAULT); + ata_scsi_change_queue_depth(sdev, 1); ata_dev_notice(dev, "Disabling SWNCQ mode (depth %x)\n", sdev->queue_depth); } diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 812a2891de58..20ca6a619476 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -911,7 +911,7 @@ static struct scsi_host_template iscsi_iser_sht = { .module = THIS_MODULE, .name = "iSCSI Initiator over iSER", .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .sg_tablesize = ISCSI_ISER_SG_TABLESIZE, .max_sectors = 1024, .cmd_per_lun = ISER_DEF_CMD_PER_LUN, diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 8d13a19e04b2..5461924c9f10 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2402,18 +2402,15 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event) * srp_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT - * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. */ static int -srp_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +srp_change_queue_depth(struct scsi_device *sdev, int qdepth) { if (!sdev->tagged_supported) qdepth = 1; - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, qdepth); } static int srp_send_tsk_mgmt(struct srp_rdma_ch *ch, u64 req_tag, diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index dee06d6f0b68..6c9fc11efb87 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -2311,12 +2311,11 @@ mptscsih_slave_destroy(struct scsi_device *sdev) * mptscsih_change_queue_depth - This function will set a devices queue depth * @sdev: per scsi_device pointer * @qdepth: requested queue depth - * @reason: calling context * * Adding support for new 'change_queue_depth' api. */ int -mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth) { MPT_SCSI_HOST *hd = shost_priv(sdev->host); VirtTarget *vtarget; @@ -2327,9 +2326,6 @@ mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) starget = scsi_target(sdev); vtarget = starget->hostdata; - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (ioc->bus_type == SPI) { if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)) max_depth = 1; @@ -2347,8 +2343,7 @@ mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, qdepth); } /* @@ -2392,8 +2387,7 @@ mptscsih_slave_configure(struct scsi_device *sdev) ioc->name, vtarget->negoFlags, vtarget->maxOffset, vtarget->minSyncFactor)); - mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH, - SCSI_QDEPTH_DEFAULT); + mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH); dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT "tagged %d, simple %d\n", ioc->name,sdev->tagged_supported, sdev->simple_tags)); diff --git a/drivers/message/fusion/mptscsih.h b/drivers/message/fusion/mptscsih.h index e1b1a198a62a..2baeefd9be7a 100644 --- a/drivers/message/fusion/mptscsih.h +++ b/drivers/message/fusion/mptscsih.h @@ -128,8 +128,7 @@ extern int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_F extern int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); extern int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply); extern int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset); -extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason); +extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth); extern u8 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id); extern int mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id); extern struct device_attribute *mptscsih_host_attrs[]; diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 179bf3d8af6c..75f4bfc2b98a 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -32,13 +32,6 @@ static bool allow_lun_scan = 1; module_param(allow_lun_scan, bool, 0600); MODULE_PARM_DESC(allow_lun_scan, "For NPIV, scan and attach all storage LUNs"); -static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth, - int reason) -{ - scsi_adjust_queue_depth(sdev, depth); - return sdev->queue_depth; -} - static void zfcp_scsi_slave_destroy(struct scsi_device *sdev) { struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); @@ -54,7 +47,7 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdev) static int zfcp_scsi_slave_configure(struct scsi_device *sdp) { if (sdp->tagged_supported) - scsi_adjust_queue_depth(sdp, default_depth); + scsi_change_queue_depth(sdp, default_depth); return 0; } @@ -293,7 +286,7 @@ static struct scsi_host_template zfcp_scsi_host_template = { .slave_alloc = zfcp_scsi_slave_alloc, .slave_configure = zfcp_scsi_slave_configure, .slave_destroy = zfcp_scsi_slave_destroy, - .change_queue_depth = zfcp_scsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .proc_name = "zfcp", .can_queue = 4096, .this_id = -1, diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index 1cf37032290a..cd4129ff7ae4 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -189,17 +189,6 @@ static ssize_t twa_show_stats(struct device *dev, return len; } /* End twa_show_stats() */ -/* This function will set a devices queue depth */ -static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth, - int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; -} /* End twa_change_queue_depth() */ - /* Create sysfs 'stats' entry */ static struct device_attribute twa_host_stats_attr = { .attr = { @@ -2014,7 +2003,7 @@ static struct scsi_host_template driver_template = { .queuecommand = twa_scsi_queue, .eh_host_reset_handler = twa_scsi_eh_reset, .bios_param = twa_scsi_biosparam, - .change_queue_depth = twa_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .can_queue = TW_Q_LENGTH-2, .slave_configure = twa_slave_configure, .this_id = -1, diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c index 547756b7d5bf..2361772d5909 100644 --- a/drivers/scsi/3w-sas.c +++ b/drivers/scsi/3w-sas.c @@ -191,17 +191,6 @@ static ssize_t twl_show_stats(struct device *dev, return len; } /* End twl_show_stats() */ -/* This function will set a devices queue depth */ -static int twl_change_queue_depth(struct scsi_device *sdev, int queue_depth, - int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; -} /* End twl_change_queue_depth() */ - /* stats sysfs attribute initializer */ static struct device_attribute twl_host_stats_attr = { .attr = { @@ -1588,7 +1577,7 @@ static struct scsi_host_template driver_template = { .queuecommand = twl_scsi_queue, .eh_host_reset_handler = twl_scsi_eh_reset, .bios_param = twl_scsi_biosparam, - .change_queue_depth = twl_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .can_queue = TW_Q_LENGTH-2, .slave_configure = twl_slave_configure, .this_id = -1, diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 261a4c1da962..c75f2048319f 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -523,17 +523,6 @@ static ssize_t tw_show_stats(struct device *dev, struct device_attribute *attr, return len; } /* End tw_show_stats() */ -/* This function will set a devices queue depth */ -static int tw_change_queue_depth(struct scsi_device *sdev, int queue_depth, - int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; -} /* End tw_change_queue_depth() */ - /* Create sysfs 'stats' entry */ static struct device_attribute tw_host_stats_attr = { .attr = { @@ -2268,7 +2257,7 @@ static struct scsi_host_template driver_template = { .queuecommand = tw_scsi_queue, .eh_host_reset_handler = tw_scsi_eh_reset, .bios_param = tw_scsi_biosparam, - .change_queue_depth = tw_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .can_queue = TW_Q_LENGTH-2, .slave_configure = tw_slave_configure, .this_id = -1, diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index d7557b932113..aa915da2a5e5 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -175,7 +175,7 @@ STATIC void NCR_700_chip_reset(struct Scsi_Host *host); STATIC int NCR_700_slave_alloc(struct scsi_device *SDpnt); STATIC int NCR_700_slave_configure(struct scsi_device *SDpnt); STATIC void NCR_700_slave_destroy(struct scsi_device *SDpnt); -static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth, int reason); +static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth); static int NCR_700_change_queue_type(struct scsi_device *SDpnt, int depth); STATIC struct device_attribute *NCR_700_dev_attrs[]; @@ -904,7 +904,7 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata hostdata->tag_negotiated &= ~(1<device->tagged_supported = 0; - scsi_adjust_queue_depth(SCp->device, host->cmd_per_lun); + scsi_change_queue_depth(SCp->device, host->cmd_per_lun); scsi_set_tag_type(SCp->device, 0); } else { shost_printk(KERN_WARNING, host, @@ -2052,7 +2052,7 @@ NCR_700_slave_configure(struct scsi_device *SDp) /* to do here: allocate memory; build a queue_full list */ if(SDp->tagged_supported) { - scsi_adjust_queue_depth(SDp, NCR_700_DEFAULT_TAGS); + scsi_change_queue_depth(SDp, NCR_700_DEFAULT_TAGS); NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } @@ -2075,16 +2075,11 @@ NCR_700_slave_destroy(struct scsi_device *SDp) } static int -NCR_700_change_queue_depth(struct scsi_device *SDp, int depth, int reason) +NCR_700_change_queue_depth(struct scsi_device *SDp, int depth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (depth > NCR_700_MAX_TAGS) depth = NCR_700_MAX_TAGS; - - scsi_adjust_queue_depth(SDp, depth); - return depth; + return scsi_change_queue_depth(SDp, depth); } static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) @@ -2105,12 +2100,12 @@ static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) if (!tag_type) { /* shift back to the default unqueued number of commands * (the user can still raise this) */ - scsi_adjust_queue_depth(SDp, SDp->host->cmd_per_lun); + scsi_change_queue_depth(SDp, SDp->host->cmd_per_lun); hostdata->tag_negotiated &= ~(1 << sdev_id(SDp)); } else { /* Here, we cleared the negotiation flag above, so this * will force the driver to renegotiate */ - scsi_adjust_queue_depth(SDp, SDp->queue_depth); + scsi_change_queue_depth(SDp, SDp->queue_depth); if (change_tag) NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index 5aa476b6b8a8..8d66a6469e29 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -2327,12 +2327,12 @@ static int blogic_slaveconfig(struct scsi_device *dev) if (qdepth == 0) qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH; adapter->qdepth[tgt_id] = qdepth; - scsi_adjust_queue_depth(dev, qdepth); + scsi_change_queue_depth(dev, qdepth); } else { adapter->tagq_ok &= ~(1 << tgt_id); qdepth = adapter->untag_qdepth; adapter->qdepth[tgt_id] = qdepth; - scsi_adjust_queue_depth(dev, qdepth); + scsi_change_queue_depth(dev, qdepth); } qdepth = 0; for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 41b9c68bca67..d11c23aad046 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -462,9 +462,9 @@ static int aac_slave_configure(struct scsi_device *sdev) depth = 256; else if (depth < 2) depth = 2; - scsi_adjust_queue_depth(sdev, depth); + scsi_change_queue_depth(sdev, depth); } else - scsi_adjust_queue_depth(sdev, 1); + scsi_change_queue_depth(sdev, 1); return 0; } @@ -478,12 +478,8 @@ static int aac_slave_configure(struct scsi_device *sdev) * total capacity and the queue depth supported by the target device. */ -static int aac_change_queue_depth(struct scsi_device *sdev, int depth, - int reason) +static int aac_change_queue_depth(struct scsi_device *sdev, int depth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (sdev->tagged_supported && (sdev->type == TYPE_DISK) && (sdev_channel(sdev) == CONTAINER_CHANNEL)) { struct scsi_device * dev; @@ -504,10 +500,10 @@ static int aac_change_queue_depth(struct scsi_device *sdev, int depth, depth = 256; else if (depth < 2) depth = 2; - scsi_adjust_queue_depth(sdev, depth); - } else - scsi_adjust_queue_depth(sdev, 1); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, depth); + } + + return scsi_change_queue_depth(sdev, 1); } static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index ae4840e4c1c5..6719a3390ebd 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -7706,7 +7706,7 @@ advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->can_tagged_qng |= tid_bit; asc_dvc->use_tagged_qng |= tid_bit; } - scsi_adjust_queue_depth(sdev, + scsi_change_queue_depth(sdev, asc_dvc->max_dvc_qng[sdev->id]); } } else { @@ -7847,10 +7847,8 @@ advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) } } - if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { - scsi_adjust_queue_depth(sdev, - adv_dvc->max_dvc_qng); - } + if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) + scsi_change_queue_depth(sdev, adv_dvc->max_dvc_qng); } /* diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 80cb4fd7caaa..d5c7b193d8d3 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1470,7 +1470,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { case AHD_DEV_Q_BASIC: case AHD_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, + scsi_change_queue_depth(sdev, dev->openings + dev->active); break; default: @@ -1480,7 +1480,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, 1); + scsi_change_queue_depth(sdev, 1); break; } } diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index a6a27d5398dd..88360116dbcb 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -1336,7 +1336,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) { case AHC_DEV_Q_BASIC: case AHC_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, + scsi_change_queue_depth(sdev, dev->openings + dev->active); default: /* @@ -1345,7 +1345,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, 2); + scsi_change_queue_depth(sdev, 2); break; } } diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 209f77162d06..914c39f9f388 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -114,16 +114,11 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb); static const char *arcmsr_info(struct Scsi_Host *); static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb); static void arcmsr_free_irq(struct pci_dev *, struct AdapterControlBlock *); -static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, - int queue_depth, int reason) +static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (queue_depth > ARCMSR_MAX_CMD_PERLUN) queue_depth = ARCMSR_MAX_CMD_PERLUN; - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; + return scsi_change_queue_depth(sdev, queue_depth); } static struct scsi_host_template arcmsr_scsi_host_template = { diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index d9b999a3416f..f3193406776c 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -556,7 +556,7 @@ static struct scsi_host_template beiscsi_sht = { .name = "Emulex 10Gbe open-iscsi Initiator Driver", .proc_name = DRV_NAME, .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .slave_configure = beiscsi_slave_configure, .target_alloc = iscsi_target_alloc, .eh_abort_handler = beiscsi_eh_abort, diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 87b09cd232cc..7223b0006740 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -776,7 +776,7 @@ bfad_thread_workq(struct bfad_s *bfad) static int bfad_im_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, bfa_lun_queue_depth); + scsi_change_queue_depth(sdev, bfa_lun_queue_depth); return 0; } @@ -866,7 +866,7 @@ bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { if (tmp_sdev->id != sdev->id) continue; - scsi_adjust_queue_depth(tmp_sdev, + scsi_change_queue_depth(tmp_sdev, tmp_sdev->queue_depth + 1); itnim->last_ramp_up_time = jiffies; diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index cc537972f3ea..386c2cfad306 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2784,7 +2784,7 @@ static struct scsi_host_template bnx2fc_shost_template = { .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */ .eh_host_reset_handler = fc_eh_host_reset, .slave_alloc = fc_slave_alloc, - .change_queue_depth = fc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index 9de1c20bb0f8..e53078d03309 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -2259,7 +2259,7 @@ static struct scsi_host_template bnx2i_host_template = { .eh_abort_handler = iscsi_eh_abort, .eh_device_reset_handler = iscsi_eh_device_reset, .eh_target_reset_handler = iscsi_eh_recover_target, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .target_alloc = iscsi_target_alloc, .can_queue = 2048, .max_sectors = 127, diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 44a8cc51428f..4d0b6ce55f20 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2241,7 +2241,7 @@ csio_slave_alloc(struct scsi_device *sdev) static int csio_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, csio_lun_qdepth); + scsi_change_queue_depth(sdev, csio_lun_qdepth); return 0; } diff --git a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c index 99ea67dcdd2a..3db4c63978c5 100644 --- a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c +++ b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c @@ -86,7 +86,7 @@ static struct scsi_host_template cxgb3i_host_template = { .proc_name = DRV_MODULE_NAME, .can_queue = CXGB3I_SCSI_HOST_QDEPTH, .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c index af86e8f57b84..efe42ef7d92b 100644 --- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c @@ -89,7 +89,7 @@ static struct scsi_host_template cxgb4i_host_template = { .proc_name = DRV_MODULE_NAME, .can_queue = CXGB4I_SCSI_HOST_QDEPTH, .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 1af8d54bcded..0bf976936a10 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -415,7 +415,7 @@ static int adpt_slave_configure(struct scsi_device * device) pHba = (adpt_hba *) host->hostdata[0]; if (host->can_queue && device->tagged_supported) { - scsi_adjust_queue_depth(device, + scsi_change_queue_depth(device, host->can_queue - 1); } return 0; diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index bc0f918f1729..227dd2c2ec2f 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -952,12 +952,12 @@ static int eata2x_slave_configure(struct scsi_device *dev) } else { tag_suffix = ", no tags"; } - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); } else if (TLDEV(dev->type) && linked_comm) { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", untagged"; } else { - scsi_adjust_queue_depth(dev, utqd); + scsi_change_queue_depth(dev, utqd); tag_suffix = ""; } diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h index 1941d837f6f2..b6030e3edd01 100644 --- a/drivers/scsi/esas2r/esas2r.h +++ b/drivers/scsi/esas2r/esas2r.h @@ -972,7 +972,6 @@ u8 handle_hba_ioctl(struct esas2r_adapter *a, struct atto_ioctl *ioctl_hba); int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd); int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh); -int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason); long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); /* SCSI error handler (eh) functions */ diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index 30fce64faf75..593ff8a63c70 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -254,7 +254,7 @@ static struct scsi_host_template driver_template = { .use_clustering = ENABLE_CLUSTERING, .emulated = 0, .proc_name = ESAS2R_DRVR_NAME, - .change_queue_depth = esas2r_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .max_sectors = 0xFFFF, .use_blk_tags = 1, @@ -1257,15 +1257,6 @@ int esas2r_target_reset(struct scsi_cmnd *cmd) return esas2r_dev_targ_reset(cmd, true); } -int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason) -{ - esas2r_log(ESAS2R_LOG_INFO, "change_queue_depth %p, %d", dev, depth); - - scsi_adjust_queue_depth(dev, depth); - - return dev->queue_depth; -} - void esas2r_log_request_failure(struct esas2r_adapter *a, struct esas2r_request *rq) { diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 38c23e0b73af..7e7687f73deb 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2407,7 +2407,7 @@ static int esp_slave_configure(struct scsi_device *dev) /* XXX make this configurable somehow XXX */ int goal_tags = min(ESP_DEFAULT_TAGS, ESP_MAX_TAG); - scsi_adjust_queue_depth(dev, goal_tags); + scsi_change_queue_depth(dev, goal_tags); } tp->flags |= ESP_TGT_DISCONNECT; diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 97229860398f..308a016fdaea 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -280,7 +280,7 @@ static struct scsi_host_template fcoe_shost_template = { .eh_device_reset_handler = fc_eh_device_reset, .eh_host_reset_handler = fc_eh_host_reset, .slave_alloc = fc_slave_alloc, - .change_queue_depth = fc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 86b496c8633d..0c1f8177b5b7 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -98,7 +98,7 @@ static int fnic_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_adjust_queue_depth(sdev, fnic_max_qdepth); + scsi_change_queue_depth(sdev, fnic_max_qdepth); return 0; } @@ -110,7 +110,7 @@ static struct scsi_host_template fnic_host_template = { .eh_device_reset_handler = fnic_device_reset, .eh_host_reset_handler = fnic_host_reset, .slave_alloc = fnic_slave_alloc, - .change_queue_depth = fc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 617f218e2a16..6bb4611b238a 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -216,8 +216,6 @@ static int hpsa_scsi_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd); static void hpsa_scan_start(struct Scsi_Host *); static int hpsa_scan_finished(struct Scsi_Host *sh, unsigned long elapsed_time); -static int hpsa_change_queue_depth(struct scsi_device *sdev, - int qdepth, int reason); static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd); static int hpsa_eh_abort_handler(struct scsi_cmnd *scsicmd); @@ -673,7 +671,7 @@ static struct scsi_host_template hpsa_driver_template = { .queuecommand = hpsa_scsi_queue_command, .scan_start = hpsa_scan_start, .scan_finished = hpsa_scan_finished, - .change_queue_depth = hpsa_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .this_id = -1, .use_clustering = ENABLE_CLUSTERING, .eh_abort_handler = hpsa_eh_abort_handler, @@ -4074,18 +4072,6 @@ static int hpsa_scan_finished(struct Scsi_Host *sh, return finished; } -static int hpsa_change_queue_depth(struct scsi_device *sdev, - int qdepth, int reason) -{ - struct ctlr_info *h = sdev_to_hba(sdev); - - if (reason != SCSI_QDEPTH_DEFAULT) - return -ENOTSUPP; - - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} - static void hpsa_unregister_scsi(struct ctlr_info *h) { /* we are being forcibly unloaded, and may not refuse. */ diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index 151893148abd..e995218476ed 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -1118,17 +1118,13 @@ static int hptiop_reset(struct scsi_cmnd *scp) } static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, - int queue_depth, int reason) + int queue_depth) { struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata; - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (queue_depth > hba->max_requests) queue_depth = hba->max_requests; - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; + return scsi_change_queue_depth(sdev, queue_depth); } static ssize_t hptiop_show_version(struct device *dev, diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 381449d5be76..f58c6d8e0264 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2900,17 +2900,12 @@ static int ibmvfc_slave_configure(struct scsi_device *sdev) * Return value: * actual depth set **/ -static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) +static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (qdepth > IBMVFC_MAX_CMDS_PER_LUN) qdepth = IBMVFC_MAX_CMDS_PER_LUN; - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, qdepth); } static ssize_t ibmvfc_show_host_partition_name(struct device *dev, diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index e8c3cdf0d03b..acea5d6eebd0 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1941,17 +1941,11 @@ static int ibmvscsi_slave_configure(struct scsi_device *sdev) * Return value: * actual depth set **/ -static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) +static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (qdepth > IBMVSCSI_MAX_CMDS_PER_LUN) qdepth = IBMVSCSI_MAX_CMDS_PER_LUN; - - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, qdepth); } /* ------------------------------------------------------------ diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index d8d16625a876..540294389355 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4328,16 +4328,12 @@ static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; * Return value: * actual depth set **/ -static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) +static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) { struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; struct ipr_resource_entry *res; unsigned long lock_flags = 0; - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); res = (struct ipr_resource_entry *)sdev->hostdata; @@ -4345,7 +4341,7 @@ static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, qdepth = IPR_MAX_CMD_PER_ATA_LUN; spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); return sdev->queue_depth; } @@ -4752,7 +4748,7 @@ static int ipr_slave_configure(struct scsi_device *sdev) spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); if (ap) { - scsi_adjust_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); + scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); ata_sas_slave_configure(sdev, ap); } diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 454741a8da45..e5c28435d768 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -1210,7 +1210,7 @@ ips_slave_configure(struct scsi_device * SDptr) min = ha->max_cmds / 2; if (ha->enq->ucLogDriveCount <= 2) min = ha->max_cmds - 1; - scsi_adjust_queue_depth(SDptr, min); + scsi_change_queue_depth(SDptr, min); } SDptr->skip_ms_page_8 = 1; diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index a575d845b667..0b8af186e707 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -952,7 +952,7 @@ static struct scsi_host_template iscsi_sw_tcp_sht = { .module = THIS_MODULE, .name = "iSCSI Initiator over TCP/IP", .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .can_queue = ISCSI_DEF_XMIT_CMDS_MAX - 1, .sg_tablesize = 4096, .max_sectors = 0xFFFF, diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 0d2d024e77c5..c6795941b45d 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2160,24 +2160,11 @@ int fc_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_adjust_queue_depth(sdev, FC_FCP_DFLT_QUEUE_DEPTH); + scsi_change_queue_depth(sdev, FC_FCP_DFLT_QUEUE_DEPTH); return 0; } EXPORT_SYMBOL(fc_slave_alloc); -/** - * fc_change_queue_depth() - Change a device's queue depth - * @sdev: The SCSI device whose queue depth is to change - * @qdepth: The new queue depth - * @reason: The resason for the change - */ -int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) -{ - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} -EXPORT_SYMBOL(fc_change_queue_depth); - /** * fc_fcp_destory() - Tear down the FCP layer for a given local port * @lport: The local port that no longer needs the FCP layer diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 79e977484ad5..8053f24f0349 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1771,13 +1771,6 @@ fault: } EXPORT_SYMBOL_GPL(iscsi_queuecommand); -int iscsi_change_queue_depth(struct scsi_device *sdev, int depth, int reason) -{ - scsi_adjust_queue_depth(sdev, depth); - return sdev->queue_depth; -} -EXPORT_SYMBOL_GPL(iscsi_change_queue_depth); - int iscsi_target_alloc(struct scsi_target *starget) { struct iscsi_cls_session *cls_session = starget_to_session(starget); diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 914e41165137..b492293d51f2 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -940,12 +940,12 @@ int sas_slave_configure(struct scsi_device *scsi_dev) sas_read_port_mode_page(scsi_dev); if (scsi_dev->tagged_supported) { - scsi_adjust_queue_depth(scsi_dev, SAS_DEF_QD); + scsi_change_queue_depth(scsi_dev, SAS_DEF_QD); } else { SAS_DPRINTK("device %llx, LUN %llx doesn't support " "TCQ\n", SAS_ADDR(dev->sas_addr), scsi_dev->lun); - scsi_adjust_queue_depth(scsi_dev, 1); + scsi_change_queue_depth(scsi_dev, 1); } scsi_dev->allow_restart = 1; @@ -953,18 +953,16 @@ int sas_slave_configure(struct scsi_device *scsi_dev) return 0; } -int sas_change_queue_depth(struct scsi_device *sdev, int depth, int reason) +int sas_change_queue_depth(struct scsi_device *sdev, int depth) { struct domain_device *dev = sdev_to_domain_dev(sdev); if (dev_is_sata(dev)) - return __ata_change_queue_depth(dev->sata_dev.ap, sdev, depth, - reason); + return __ata_change_queue_depth(dev->sata_dev.ap, sdev, depth); if (!sdev->tagged_supported) depth = 1; - scsi_adjust_queue_depth(sdev, depth); - return depth; + return scsi_change_queue_depth(sdev, depth); } int sas_change_queue_type(struct scsi_device *scsi_dev, int type) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 522854920369..fd85952b621d 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -242,23 +242,6 @@ lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) spin_unlock_irqrestore(shost->host_lock, flags); } -/** - * lpfc_change_queue_depth - Alter scsi device queue depth - * @sdev: Pointer the scsi device on which to change the queue depth. - * @qdepth: New queue depth to set the sdev to. - * @reason: The reason for the queue depth change. - * - * This function is called by the midlayer and the LLD to alter the queue - * depth for a scsi device. This function sets the queue depth to the new - * value and sends an event out to log the queue depth change. - **/ -static int -lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) -{ - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} - /** * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread * @phba: The Hba for which this call is being executed. @@ -344,8 +327,7 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) else new_queue_depth = sdev->queue_depth - new_queue_depth; - lpfc_change_queue_depth(sdev, new_queue_depth, - SCSI_QDEPTH_DEFAULT); + scsi_change_queue_depth(sdev, new_queue_depth); } } lpfc_destroy_vport_work_array(phba, vports); @@ -5513,7 +5495,7 @@ lpfc_slave_configure(struct scsi_device *sdev) struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; - scsi_adjust_queue_depth(sdev, vport->cfg_lun_queue_depth); + scsi_change_queue_depth(sdev, vport->cfg_lun_queue_depth); if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_handle_fast_ring_event(phba, @@ -5896,7 +5878,7 @@ struct scsi_host_template lpfc_template = { .shost_attrs = lpfc_hba_attrs, .max_sectors = 0xFFFF, .vendor_id = LPFC_NL_VENDOR_ID, - .change_queue_depth = lpfc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .use_blk_tags = 1, .track_queue_depth = 1, @@ -5921,7 +5903,7 @@ struct scsi_host_template lpfc_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = lpfc_vport_attrs, .max_sectors = 0xFFFF, - .change_queue_depth = lpfc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .use_blk_tags = 1, .track_queue_depth = 1, diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index d56eb9d3d40c..f0987f22ea70 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -332,25 +332,6 @@ static struct device_attribute *megaraid_sdev_attrs[] = { NULL, }; -/** - * megaraid_change_queue_depth - Change the device's queue depth - * @sdev: scsi device struct - * @qdepth: depth to set - * @reason: calling context - * - * Return value: - * actual depth set - */ -static int megaraid_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} - /* * Scsi host template for megaraid unified driver */ @@ -363,7 +344,7 @@ static struct scsi_host_template megaraid_template_g = { .eh_device_reset_handler = megaraid_reset_handler, .eh_bus_reset_handler = megaraid_reset_handler, .eh_host_reset_handler = megaraid_reset_handler, - .change_queue_depth = megaraid_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .use_clustering = ENABLE_CLUSTERING, .no_write_same = 1, .sdev_attrs = megaraid_sdev_attrs, diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 69a9dd6ae04c..f05580e693d0 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -2591,17 +2591,6 @@ megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) } } -static int megasas_change_queue_depth(struct scsi_device *sdev, - int queue_depth, int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, queue_depth); - - return queue_depth; -} - static ssize_t megasas_fw_crash_buffer_store(struct device *cdev, struct device_attribute *attr, const char *buf, size_t count) @@ -2766,7 +2755,7 @@ static struct scsi_host_template megasas_template = { .shost_attrs = megaraid_host_attrs, .bios_param = megasas_bios_param, .use_clustering = ENABLE_CLUSTERING, - .change_queue_depth = megasas_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .no_write_same = 1, }; diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index b006e1e9fcb8..12229de433bf 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1222,20 +1222,18 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); } /** * _scsih_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT - * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. */ static int -_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth) { _scsih_adjust_queue_depth(sdev, qdepth); @@ -2077,7 +2075,7 @@ _scsih_slave_configure(struct scsi_device *sdev) r_level, raid_device->handle, (unsigned long long)raid_device->wwid, raid_device->num_pds, ds); - _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + _scsih_change_queue_depth(sdev, qdepth); /* raid transport support */ if (!ioc->is_warpdrive) _scsih_set_level(sdev, raid_device->volume_type); @@ -2142,7 +2140,7 @@ _scsih_slave_configure(struct scsi_device *sdev) _scsih_display_sata_capabilities(ioc, handle, sdev); - _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + _scsih_change_queue_depth(sdev, qdepth); if (ssp_target) { sas_read_port_mode_page(sdev); diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 568dcaed36cb..de175b9915e2 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1090,20 +1090,18 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); } /** * _scsih_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT - * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. */ static int -_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth) { _scsih_adjust_queue_depth(sdev, qdepth); @@ -1734,7 +1732,7 @@ _scsih_slave_configure(struct scsi_device *sdev) raid_device->num_pds, ds); - _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + _scsih_change_queue_depth(sdev, qdepth); /* raid transport support */ _scsih_set_level(sdev, raid_device->volume_type); @@ -1800,7 +1798,7 @@ _scsih_slave_configure(struct scsi_device *sdev) _scsih_display_sata_capabilities(ioc, handle, sdev); - _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + _scsih_change_queue_depth(sdev, qdepth); if (ssp_target) { sas_read_port_mode_page(sdev); diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c index 9c331b7bfdcd..5b93ed810f6e 100644 --- a/drivers/scsi/ncr53c8xx.c +++ b/drivers/scsi/ncr53c8xx.c @@ -7997,7 +7997,7 @@ static int ncr53c8xx_slave_configure(struct scsi_device *device) if (depth_to_use > MAX_TAGS) depth_to_use = MAX_TAGS; - scsi_adjust_queue_depth(device, depth_to_use); + scsi_change_queue_depth(device, depth_to_use); /* ** Since the queue depth is not tunable under Linux, diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index d8b9ba251fbd..b1b1f66b1ab7 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -285,23 +285,15 @@ static void pmcraid_slave_destroy(struct scsi_device *scsi_dev) * pmcraid_change_queue_depth - Change the device's queue depth * @scsi_dev: scsi device struct * @depth: depth to set - * @reason: calling context * * Return value * actual depth set */ -static int pmcraid_change_queue_depth(struct scsi_device *scsi_dev, int depth, - int reason) +static int pmcraid_change_queue_depth(struct scsi_device *scsi_dev, int depth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (depth > PMCRAID_MAX_CMD_PER_LUN) depth = PMCRAID_MAX_CMD_PER_LUN; - - scsi_adjust_queue_depth(scsi_dev, depth); - - return scsi_dev->queue_depth; + return scsi_change_queue_depth(scsi_dev, depth); } /** diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index adedb6ef8eec..c68a66e8cfc1 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -1224,9 +1224,9 @@ qla1280_slave_configure(struct scsi_device *device) if (device->tagged_supported && (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { - scsi_adjust_queue_depth(device, ha->bus_settings[bus].hiwat); + scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat); } else { - scsi_adjust_queue_depth(device, default_depth); + scsi_change_queue_depth(device, default_depth); } nv->bus[bus].target[target].parameter.enable_sync = device->sdtr; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 20049b176b64..6b4d9235368a 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -236,7 +236,6 @@ static int qla2xxx_eh_target_reset(struct scsi_cmnd *); static int qla2xxx_eh_bus_reset(struct scsi_cmnd *); static int qla2xxx_eh_host_reset(struct scsi_cmnd *); -static int qla2x00_change_queue_depth(struct scsi_device *, int, int); static void qla2x00_clear_drv_active(struct qla_hw_data *); static void qla2x00_free_device(scsi_qla_host_t *); static void qla83xx_disable_laser(scsi_qla_host_t *vha); @@ -258,7 +257,7 @@ struct scsi_host_template qla2xxx_driver_template = { .slave_destroy = qla2xxx_slave_destroy, .scan_finished = qla2xxx_scan_finished, .scan_start = qla2xxx_scan_start, - .change_queue_depth = qla2x00_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, @@ -1406,7 +1405,7 @@ qla2xxx_slave_configure(struct scsi_device *sdev) if (IS_T10_PI_CAPABLE(vha->hw)) blk_queue_update_dma_alignment(sdev->request_queue, 0x7); - scsi_adjust_queue_depth(sdev, req->max_q_depth); + scsi_change_queue_depth(sdev, req->max_q_depth); return 0; } @@ -1416,13 +1415,6 @@ qla2xxx_slave_destroy(struct scsi_device *sdev) sdev->hostdata = NULL; } -static int -qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) -{ - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} - /** * qla2x00_config_dma_addressing() - Configure OS DMA addressing method. * @ha: HA context diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 2bfde373ea2b..6d25879d87c8 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -201,7 +201,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .eh_timed_out = qla4xxx_eh_cmd_timed_out, .slave_alloc = qla4xxx_slave_alloc, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .this_id = -1, .cmd_per_lun = 3, @@ -9059,7 +9059,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) queue_depth = ql4xmaxqdepth; - scsi_adjust_queue_depth(sdev, queue_depth); + scsi_change_queue_depth(sdev, queue_depth); return 0; } diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 106fa2f886d2..5ea15fc7d2fb 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -742,30 +742,18 @@ void scsi_finish_command(struct scsi_cmnd *cmd) } /** - * scsi_adjust_queue_depth - Let low level drivers change a device's queue depth + * scsi_change_queue_depth - change a device's queue depth * @sdev: SCSI Device in question - * @tags: Number of tags allowed if tagged queueing enabled, - * or number of commands the low level driver can - * queue up in non-tagged mode (as per cmd_per_lun). + * @depth: number of commands allowed to be queued to the driver * - * Returns: Nothing - * - * Lock Status: None held on entry - * - * Notes: Low level drivers may call this at any time and we will do - * the right thing depending on whether or not the device is - * currently active and whether or not it even has the - * command blocks built yet. + * Sets the device queue depth and returns the new value. */ -void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) +int scsi_change_queue_depth(struct scsi_device *sdev, int depth) { unsigned long flags; - /* - * refuse to set tagged depth to an unworkable size - */ - if (tags <= 0) - return; + if (depth <= 0) + goto out; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); @@ -780,15 +768,17 @@ void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) */ if (!shost_use_blk_mq(sdev->host) && !sdev->host->bqt) { if (blk_queue_tagged(sdev->request_queue) && - blk_queue_resize_tags(sdev->request_queue, tags) != 0) - goto out; + blk_queue_resize_tags(sdev->request_queue, depth) != 0) + goto out_unlock; } - sdev->queue_depth = tags; - out: + sdev->queue_depth = depth; +out_unlock: spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); +out: + return sdev->queue_depth; } -EXPORT_SYMBOL(scsi_adjust_queue_depth); +EXPORT_SYMBOL(scsi_change_queue_depth); /** * scsi_track_queue_full - track QUEUE_FULL events to adjust queue depth @@ -833,12 +823,11 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth) if (sdev->last_queue_full_depth < 8) { /* Drop back to untagged */ scsi_set_tag_type(sdev, 0); - scsi_adjust_queue_depth(sdev, sdev->host->cmd_per_lun); + scsi_change_queue_depth(sdev, sdev->host->cmd_per_lun); return -1; } - scsi_adjust_queue_depth(sdev, depth); - return depth; + return scsi_change_queue_depth(sdev, depth); } EXPORT_SYMBOL(scsi_track_queue_full); diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 84cf82e0782d..ce71b6d4393c 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -4469,7 +4469,7 @@ sdebug_queuecommand_lock_or_not(struct Scsi_Host *shost, struct scsi_cmnd *cmd) } static int -sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) +sdebug_change_qdepth(struct scsi_device *sdev, int qdepth) { int num_in_q = 0; unsigned long iflags; @@ -4489,7 +4489,7 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) /* allow to exceed max host queued_arr elements for testing */ if (qdepth > SCSI_DEBUG_CANQUEUE + 10) qdepth = SCSI_DEBUG_CANQUEUE + 10; - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) { sdev_printk(KERN_INFO, sdev, diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 2d0f5155ee51..1f63559184b9 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -632,7 +632,7 @@ static void scsi_handle_queue_ramp_up(struct scsi_device *sdev) tmp_sdev->queue_depth == sdev->max_queue_depth) continue; - scsi_adjust_queue_depth(tmp_sdev, tmp_sdev->queue_depth + 1); + scsi_change_queue_depth(tmp_sdev, tmp_sdev->queue_depth + 1); sdev->last_queue_ramp_up = jiffies; } } diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index d97597e6337e..0af713375db5 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -292,7 +292,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, blk_queue_init_tags(sdev->request_queue, sdev->host->cmd_per_lun, shost->bqt); } - scsi_adjust_queue_depth(sdev, sdev->host->cmd_per_lun); + scsi_change_queue_depth(sdev, sdev->host->cmd_per_lun); scsi_sysfs_device_initialize(sdev); diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index bffd5abdcd1f..1cb64a8e18c9 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -880,8 +880,7 @@ sdev_store_queue_depth(struct device *dev, struct device_attribute *attr, if (depth < 1 || depth > sht->can_queue) return -EINVAL; - retval = sht->change_queue_depth(sdev, depth, - SCSI_QDEPTH_DEFAULT); + retval = sht->change_queue_depth(sdev, depth); if (retval < 0) return retval; diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index ff8befbdf17c..e3ba251fb6e7 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1429,7 +1429,7 @@ static void storvsc_device_destroy(struct scsi_device *sdevice) static int storvsc_device_configure(struct scsi_device *sdevice) { - scsi_adjust_queue_depth(sdevice, STORVSC_MAX_IO_REQUESTS); + scsi_change_queue_depth(sdevice, STORVSC_MAX_IO_REQUESTS); blk_queue_max_segment_size(sdevice->request_queue, PAGE_SIZE); diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 3557b385251a..5d00e514ff28 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -820,7 +820,7 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev) if (reqtags > SYM_CONF_MAX_TAG) reqtags = SYM_CONF_MAX_TAG; depth_to_use = reqtags ? reqtags : 1; - scsi_adjust_queue_depth(sdev, depth_to_use); + scsi_change_queue_depth(sdev, depth_to_use); lp->s.scdev_depth = depth_to_use; sym_tune_dev_queuing(tp, sdev->lun, reqtags); diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 844c9a048c00..6c3c2cef3891 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2194,7 +2194,7 @@ static int dc390_slave_configure(struct scsi_device *sdev) if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_adjust_queue_depth(sdev, acb->TagMaxNum); + scsi_change_queue_depth(sdev, acb->TagMaxNum); } return 0; diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index aa0f4035afaf..14eb50b95a1e 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -696,25 +696,25 @@ static int u14_34f_slave_configure(struct scsi_device *dev) { if (TLDEV(dev->type) && dev->tagged_supported) if (tag_mode == TAG_SIMPLE) { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", simple tags"; } else if (tag_mode == TAG_ORDERED) { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", ordered tags"; } else { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", no tags"; } else if (TLDEV(dev->type) && linked_comm) { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", untagged"; } else { - scsi_adjust_queue_depth(dev, utqd); + scsi_change_queue_depth(dev, utqd); tag_suffix = ""; } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index e96ab253e3e5..0c4f98ee6047 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2695,7 +2695,7 @@ static void ufshcd_set_queue_depth(struct scsi_device *sdev) dev_dbg(hba->dev, "%s: activate tcq with queue depth %d\n", __func__, lun_qdepth); - scsi_adjust_queue_depth(sdev, lun_qdepth); + scsi_change_queue_depth(sdev, lun_qdepth); } /* @@ -2787,21 +2787,16 @@ static int ufshcd_slave_alloc(struct scsi_device *sdev) * ufshcd_change_queue_depth - change queue depth * @sdev: pointer to SCSI device * @depth: required depth to set - * @reason: reason for changing the depth * - * Change queue depth according to the reason and make sure - * the max. limits are not crossed. + * Change queue depth and make sure the max. limits are not crossed. */ -static int ufshcd_change_queue_depth(struct scsi_device *sdev, - int depth, int reason) +static int ufshcd_change_queue_depth(struct scsi_device *sdev, int depth) { struct ufs_hba *hba = shost_priv(sdev->host); if (depth > hba->nutrs) depth = hba->nutrs; - - scsi_adjust_queue_depth(sdev, depth); - return depth; + return scsi_change_queue_depth(sdev, depth); } /** diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index 0f7e4c7ff8c2..22e70126425b 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -682,17 +682,13 @@ static int virtscsi_device_reset(struct scsi_cmnd *sc) * virtscsi_change_queue_depth() - Change a virtscsi target's queue depth * @sdev: Virtscsi target whose queue depth to change * @qdepth: New queue depth - * @reason: Reason for the queue depth change. */ -static int virtscsi_change_queue_depth(struct scsi_device *sdev, - int qdepth, - int reason) +static int virtscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) { struct Scsi_Host *shost = sdev->host; int max_depth = shost->cmd_per_lun; - scsi_adjust_queue_depth(sdev, min(max_depth, qdepth)); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, min(max_depth, qdepth)); } static int virtscsi_abort(struct scsi_cmnd *sc) diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c index 03ad24be728e..ade1f1d013b1 100644 --- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -504,19 +504,11 @@ static void pvscsi_setup_all_rings(const struct pvscsi_adapter *adapter) } } -static int pvscsi_change_queue_depth(struct scsi_device *sdev, - int qdepth, - int reason) +static int pvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) { - if (reason != SCSI_QDEPTH_DEFAULT) - /* - * We support only changing default. - */ - return -EOPNOTSUPP; - if (!sdev->tagged_supported) qdepth = 1; - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index 32674236fec7..f94d73611ab4 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -1653,7 +1653,6 @@ static struct scsi_host_template driver_template = { .can_queue = WD7000_Q, .this_id = 7, .sg_tablesize = WD7000_SG, - .cmd_per_lun = 1, .unchecked_isa_dma = 1, .use_clustering = ENABLE_CLUSTERING, }; diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 670b75a62243..4d1b7224a7f2 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -110,19 +110,6 @@ static struct device_driver tcm_loop_driverfs = { */ struct device *tcm_loop_primary; -/* - * Copied from drivers/scsi/libfc/fc_fcp.c:fc_change_queue_depth() and - * drivers/scsi/libiscsi.c:iscsi_change_queue_depth() - */ -static int tcm_loop_change_queue_depth( - struct scsi_device *sdev, - int depth, - int reason) -{ - scsi_adjust_queue_depth(sdev, depth); - return sdev->queue_depth; -} - static void tcm_loop_submission_work(struct work_struct *work) { struct tcm_loop_cmd *tl_cmd = @@ -397,7 +384,7 @@ static struct scsi_host_template tcm_loop_driver_template = { .proc_name = "tcm_loopback", .name = "TCM_Loopback", .queuecommand = tcm_loop_queuecommand, - .change_queue_depth = tcm_loop_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .eh_abort_handler = tcm_loop_abort_task, .eh_device_reset_handler = tcm_loop_device_reset, diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 33f211b56a42..4047edfb64e1 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -799,7 +799,7 @@ static int uas_slave_configure(struct scsi_device *sdev) if (devinfo->flags & US_FL_NO_REPORT_OPCODES) sdev->no_report_opcodes = 1; - scsi_adjust_queue_depth(sdev, devinfo->qdepth - 2); + scsi_change_queue_depth(sdev, devinfo->qdepth - 2); return 0; } diff --git a/include/linux/libata.h b/include/linux/libata.h index bd5fefeaf548..bfbc817c34ee 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1191,9 +1191,9 @@ extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); extern int ata_scsi_slave_config(struct scsi_device *sdev); extern void ata_scsi_slave_destroy(struct scsi_device *sdev); extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, - int queue_depth, int reason); + int queue_depth); extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, - int queue_depth, int reason); + int queue_depth); extern struct ata_device *ata_dev_pair(struct ata_device *adev); extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index 2e0cf568a9c1..93d14daf0994 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -1105,7 +1105,6 @@ int fc_eh_abort(struct scsi_cmnd *); int fc_eh_device_reset(struct scsi_cmnd *); int fc_eh_host_reset(struct scsi_cmnd *); int fc_slave_alloc(struct scsi_device *); -int fc_change_queue_depth(struct scsi_device *, int qdepth, int reason); /* * ELS/CT interface diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 728c9ad9feb0..4d1c46aac331 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -378,8 +378,6 @@ struct iscsi_host { /* * scsi host template */ -extern int iscsi_change_queue_depth(struct scsi_device *sdev, int depth, - int reason); extern int iscsi_eh_abort(struct scsi_cmnd *sc); extern int iscsi_eh_recover_target(struct scsi_cmnd *sc); extern int iscsi_eh_session_reset(struct scsi_cmnd *sc); diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index ef7872c20da9..1f8b33ec612f 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -704,8 +704,7 @@ int sas_queue_up(struct sas_task *task); extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *); extern int sas_target_alloc(struct scsi_target *); extern int sas_slave_configure(struct scsi_device *); -extern int sas_change_queue_depth(struct scsi_device *, int new_depth, - int reason); +extern int sas_change_queue_depth(struct scsi_device *, int new_depth); extern int sas_change_queue_type(struct scsi_device *, int qt); extern int sas_bios_param(struct scsi_device *, struct block_device *, diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 0aeaa003c3c1..6364e23454dd 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -380,7 +380,7 @@ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, #define __shost_for_each_device(sdev, shost) \ list_for_each_entry((sdev), &((shost)->__devices), siblings) -extern void scsi_adjust_queue_depth(struct scsi_device *, int); +extern int scsi_change_queue_depth(struct scsi_device *, int); extern int scsi_track_queue_full(struct scsi_device *, int); extern int scsi_set_medium_removal(struct scsi_device *, char); diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index a0b13a5cd25e..c8a462ef9a4e 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -46,10 +46,6 @@ struct blk_queue_tags; #define DISABLE_CLUSTERING 0 #define ENABLE_CLUSTERING 1 -enum { - SCSI_QDEPTH_DEFAULT, /* default requested change, e.g. from sysfs */ -}; - struct scsi_host_template { struct module *module; const char *name; @@ -193,7 +189,7 @@ struct scsi_host_template { * Things currently recommended to be handled at this time include: * * 1. Setting the device queue depth. Proper setting of this is - * described in the comments for scsi_adjust_queue_depth. + * described in the comments for scsi_change_queue_depth. * 2. Determining if the device supports the various synchronous * negotiation protocols. The device struct will already have * responded to INQUIRY and the results of the standard items @@ -279,7 +275,7 @@ struct scsi_host_template { * * Status: OPTIONAL */ - int (* change_queue_depth)(struct scsi_device *, int, int); + int (* change_queue_depth)(struct scsi_device *, int); /* * Fill in this function to allow the changing of tag types -- cgit v1.2.3 From 3c356bde19e9a728b26a231a23099c8057dbe881 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 5 Sep 2014 18:20:23 -0700 Subject: scsi: stop passing a gfp_mask argument down the command setup path There is no reason for ULDs to pass in a flag on how to allocate the S/G lists. While we don't need GFP_ATOMIC for the blk-mq case because we don't hold locks, that decision can be made way down the chain without having to pass a pointless gfp_mask argument. Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche Reviewed-by: Hannes Reinecke --- drivers/scsi/scsi_lib.c | 20 +++++++++----------- drivers/scsi/sd.c | 6 +++--- drivers/scsi/sr.c | 2 +- include/scsi/scsi_cmnd.h | 2 +- 4 files changed, 14 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 2179851cdaf3..fcdc585278bf 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -588,10 +588,10 @@ static void scsi_free_sgtable(struct scsi_data_buffer *sdb, bool mq) __sg_free_table(&sdb->table, SCSI_MAX_SG_SEGMENTS, mq, scsi_sg_free); } -static int scsi_alloc_sgtable(struct scsi_data_buffer *sdb, int nents, - gfp_t gfp_mask, bool mq) +static int scsi_alloc_sgtable(struct scsi_data_buffer *sdb, int nents, bool mq) { struct scatterlist *first_chunk = NULL; + gfp_t gfp_mask = mq ? GFP_NOIO : GFP_ATOMIC; int ret; BUG_ON(!nents); @@ -1077,8 +1077,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) } } -static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb, - gfp_t gfp_mask) +static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb) { int count; @@ -1086,7 +1085,7 @@ static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb, * If sg table allocation fails, requeue request later. */ if (unlikely(scsi_alloc_sgtable(sdb, req->nr_phys_segments, - gfp_mask, req->mq_ctx != NULL))) + req->mq_ctx != NULL))) return BLKPREP_DEFER; /* @@ -1111,7 +1110,7 @@ static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb, * BLKPREP_DEFER if the failure is retryable * BLKPREP_KILL if the failure is fatal */ -int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask) +int scsi_init_io(struct scsi_cmnd *cmd) { struct scsi_device *sdev = cmd->device; struct request *rq = cmd->request; @@ -1120,7 +1119,7 @@ int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask) BUG_ON(!rq->nr_phys_segments); - error = scsi_init_sgtable(rq, &cmd->sdb, gfp_mask); + error = scsi_init_sgtable(rq, &cmd->sdb); if (error) goto err_exit; @@ -1136,8 +1135,7 @@ int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask) rq->next_rq->special = bidi_sdb; } - error = scsi_init_sgtable(rq->next_rq, rq->next_rq->special, - GFP_ATOMIC); + error = scsi_init_sgtable(rq->next_rq, rq->next_rq->special); if (error) goto err_exit; } @@ -1149,7 +1147,7 @@ int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask) BUG_ON(prot_sdb == NULL); ivecs = blk_rq_count_integrity_sg(rq->q, rq->bio); - if (scsi_alloc_sgtable(prot_sdb, ivecs, gfp_mask, is_mq)) { + if (scsi_alloc_sgtable(prot_sdb, ivecs, is_mq)) { error = BLKPREP_DEFER; goto err_exit; } @@ -1218,7 +1216,7 @@ static int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req) * submit a request without an attached bio. */ if (req->bio) { - int ret = scsi_init_io(cmd, GFP_ATOMIC); + int ret = scsi_init_io(cmd); if (unlikely(ret)) return ret; } else { diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 95bfb7bfbb9d..f2e9b1dad574 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -786,7 +786,7 @@ static int sd_setup_discard_cmnd(struct scsi_cmnd *cmd) * amount of blocks described by the request. */ blk_add_request_payload(rq, page, len); - ret = scsi_init_io(cmd, GFP_ATOMIC); + ret = scsi_init_io(cmd); rq->__data_len = nr_bytes; out: @@ -880,7 +880,7 @@ static int sd_setup_write_same_cmnd(struct scsi_cmnd *cmd) * knows how much to actually write. */ rq->__data_len = sdp->sector_size; - ret = scsi_init_io(cmd, GFP_ATOMIC); + ret = scsi_init_io(cmd); rq->__data_len = nr_bytes; return ret; } @@ -914,7 +914,7 @@ static int sd_setup_read_write_cmnd(struct scsi_cmnd *SCpnt) int ret; unsigned char protect; - ret = scsi_init_io(SCpnt, GFP_ATOMIC); + ret = scsi_init_io(SCpnt); if (ret != BLKPREP_OK) goto out; SCpnt = rq->special; diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 3d5399e341af..5ebadc2ace9b 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -387,7 +387,7 @@ static int sr_init_command(struct scsi_cmnd *SCpnt) struct request *rq = SCpnt->request; int ret; - ret = scsi_init_io(SCpnt, GFP_ATOMIC); + ret = scsi_init_io(SCpnt); if (ret != BLKPREP_OK) goto out; SCpnt = rq->special; diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index e119142e565e..9fc1aecfc813 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -163,7 +163,7 @@ extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count, size_t *offset, size_t *len); extern void scsi_kunmap_atomic_sg(void *virt); -extern int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask); +extern int scsi_init_io(struct scsi_cmnd *cmd); extern int scsi_dma_map(struct scsi_cmnd *cmd); extern void scsi_dma_unmap(struct scsi_cmnd *cmd); -- cgit v1.2.3 From 3af6b35261182ff185db1f0fd271254147e2663e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 12 Nov 2014 18:34:51 +0100 Subject: scsi: remove scsi_driver owner field The driver core driver structure has grown an owner field and now requires it to be set for all modular drivers. Set it up for all scsi_driver instances and get rid of the now superflous scsi_driver owner field. Signed-off-by: Christoph Hellwig Reported-by: Shane M Seymour Reviewed-by: Ewan D. Milne --- drivers/scsi/ch.c | 2 +- drivers/scsi/osd/osd_uld.c | 2 +- drivers/scsi/osst.c | 2 +- drivers/scsi/scsi_scan.c | 9 ++++----- drivers/scsi/sd.c | 2 +- drivers/scsi/ses.c | 2 +- drivers/scsi/sr.c | 2 +- drivers/scsi/st.c | 2 +- include/scsi/scsi_driver.h | 1 - 9 files changed, 11 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index 4f502f95f3b8..6bac8a746ee2 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -972,9 +972,9 @@ static int ch_remove(struct device *dev) } static struct scsi_driver ch_template = { - .owner = THIS_MODULE, .gendrv = { .name = "ch", + .owner = THIS_MODULE, .probe = ch_probe, .remove = ch_remove, }, diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c index 92cdd4b06526..243eab3d10d0 100644 --- a/drivers/scsi/osd/osd_uld.c +++ b/drivers/scsi/osd/osd_uld.c @@ -540,9 +540,9 @@ static int osd_remove(struct device *dev) */ static struct scsi_driver osd_driver = { - .owner = THIS_MODULE, .gendrv = { .name = osd_name, + .owner = THIS_MODULE, .probe = osd_probe, .remove = osd_remove, } diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index 8c384648eef9..5033223f6287 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -172,9 +172,9 @@ static int osst_probe(struct device *); static int osst_remove(struct device *); static struct scsi_driver osst_template = { - .owner = THIS_MODULE, .gendrv = { .name = "osst", + .owner = THIS_MODULE, .probe = osst_probe, .remove = osst_remove, } diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index d97597e6337e..0cda53adfd35 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1593,16 +1593,15 @@ EXPORT_SYMBOL(scsi_add_device); void scsi_rescan_device(struct device *dev) { - struct scsi_driver *drv; - if (!dev->driver) return; - drv = to_scsi_driver(dev->driver); - if (try_module_get(drv->owner)) { + if (try_module_get(dev->driver->owner)) { + struct scsi_driver *drv = to_scsi_driver(dev->driver); + if (drv->rescan) drv->rescan(dev); - module_put(drv->owner); + module_put(dev->driver->owner); } } EXPORT_SYMBOL(scsi_rescan_device); diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index f2e9b1dad574..54abcb220ab4 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -510,9 +510,9 @@ static const struct dev_pm_ops sd_pm_ops = { }; static struct scsi_driver sd_template = { - .owner = THIS_MODULE, .gendrv = { .name = "sd", + .owner = THIS_MODULE, .probe = sd_probe, .remove = sd_remove, .shutdown = sd_shutdown, diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 80bfece1a2de..b7e79e7646ad 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -693,9 +693,9 @@ static struct class_interface ses_interface = { }; static struct scsi_driver ses_template = { - .owner = THIS_MODULE, .gendrv = { .name = "ses", + .owner = THIS_MODULE, .probe = ses_probe, .remove = ses_remove, }, diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 5ebadc2ace9b..8bd54a64efd6 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -88,9 +88,9 @@ static struct dev_pm_ops sr_pm_ops = { }; static struct scsi_driver sr_template = { - .owner = THIS_MODULE, .gendrv = { .name = "sr", + .owner = THIS_MODULE, .probe = sr_probe, .remove = sr_remove, .pm = &sr_pm_ops, diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index e46e02b24ba4..128d3b55bdd9 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -202,9 +202,9 @@ static int do_create_sysfs_files(void); static void do_remove_sysfs_files(void); static struct scsi_driver st_template = { - .owner = THIS_MODULE, .gendrv = { .name = "st", + .owner = THIS_MODULE, .probe = st_probe, .remove = st_remove, }, diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h index c2b759809d8a..891a658aa867 100644 --- a/include/scsi/scsi_driver.h +++ b/include/scsi/scsi_driver.h @@ -9,7 +9,6 @@ struct scsi_cmnd; struct scsi_device; struct scsi_driver { - struct module *owner; struct device_driver gendrv; void (*rescan)(struct device *); -- cgit v1.2.3 From eb846d9f147455e4e5e1863bfb5e31974bb69b7c Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 17 Nov 2014 14:25:19 +0100 Subject: scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 SPC-3 defines SERVICE ACTION IN(12) and SERVICE ACTION IN(16). So rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 to be consistent with SPC and to allow for better distinction. Signed-off-by: Hannes Reinecke Tested-by: Robert Elliott Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- block/scsi_ioctl.c | 2 +- drivers/ata/libata-scsi.c | 2 +- drivers/block/nvme-scsi.c | 4 ++-- drivers/scsi/aacraid/aachba.c | 4 ++-- drivers/scsi/aacraid/linit.c | 2 +- drivers/scsi/constants.c | 1 - drivers/scsi/gdth.c | 4 ++-- drivers/scsi/scsi_debug.c | 2 +- drivers/scsi/scsi_trace.c | 2 +- drivers/scsi/sd.c | 2 +- drivers/target/target_core_alua.c | 2 +- drivers/target/target_core_sbc.c | 2 +- drivers/usb/gadget/legacy/tcm_usb_gadget.c | 2 +- include/scsi/scsi.h | 2 +- include/trace/events/scsi.h | 2 +- include/trace/events/target.h | 2 +- tools/lib/traceevent/plugin_scsi.c | 4 ++-- 17 files changed, 20 insertions(+), 21 deletions(-) (limited to 'include') diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 1e053d911240..c7bbc190f16f 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -142,7 +142,7 @@ static void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter) __set_bit(GPCMD_VERIFY_10, filter->read_ok); __set_bit(VERIFY_16, filter->read_ok); __set_bit(REPORT_LUNS, filter->read_ok); - __set_bit(SERVICE_ACTION_IN, filter->read_ok); + __set_bit(SERVICE_ACTION_IN_16, filter->read_ok); __set_bit(RECEIVE_DIAGNOSTIC, filter->read_ok); __set_bit(MAINTENANCE_IN, filter->read_ok); __set_bit(GPCMD_READ_BUFFER_CAPACITY, filter->read_ok); diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index c8bb6abbf12c..fc6a60abe518 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3570,7 +3570,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd) ata_scsi_rbuf_fill(&args, ata_scsiop_read_cap); break; - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: if ((scsicmd[1] & 0x1f) == SAI_READ_CAPACITY_16) ata_scsi_rbuf_fill(&args, ata_scsiop_read_cap); else diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c index a4cd6d691c63..0b4b2775600e 100644 --- a/drivers/block/nvme-scsi.c +++ b/drivers/block/nvme-scsi.c @@ -329,7 +329,7 @@ INQUIRY_EVPD_BIT_MASK) ? 1 : 0) (GET_U32_FROM_CDB(cdb, READ_CAP_16_CDB_ALLOC_LENGTH_OFFSET)) #define IS_READ_CAP_16(cdb) \ -((cdb[0] == SERVICE_ACTION_IN && cdb[1] == SAI_READ_CAPACITY_16) ? 1 : 0) +((cdb[0] == SERVICE_ACTION_IN_16 && cdb[1] == SAI_READ_CAPACITY_16) ? 1 : 0) /* Request Sense Helper Macros */ #define GET_REQUEST_SENSE_ALLOC_LENGTH(cdb) \ @@ -2947,7 +2947,7 @@ static int nvme_scsi_translate(struct nvme_ns *ns, struct sg_io_hdr *hdr) case READ_CAPACITY: retcode = nvme_trans_read_capacity(ns, hdr, cmd); break; - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: if (IS_READ_CAP_16(cmd)) retcode = nvme_trans_read_capacity(ns, hdr, cmd); else diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 681434e2dfe9..b32e77db0c48 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -2181,7 +2181,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) (fsa_dev_ptr[cid].sense_data.sense_key == NOT_READY)) { switch (scsicmd->cmnd[0]) { - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: if (!(dev->raw_io_interface) || !(dev->raw_io_64) || ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16)) @@ -2309,7 +2309,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data)); return aac_get_container_name(scsicmd); } - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: if (!(dev->raw_io_interface) || !(dev->raw_io_64) || ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16)) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 41b9c68bca67..4c340d88c33d 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -555,7 +555,7 @@ static int aac_eh_abort(struct scsi_cmnd* cmd) AAC_DRIVERNAME, host->host_no, sdev_channel(dev), sdev_id(dev), dev->lun); switch (cmd->cmnd[0]) { - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: if (!(aac->raw_io_interface) || !(aac->raw_io_64) || ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16)) diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 0cf43f6e464b..52afabd23d9f 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -24,7 +24,6 @@ #define SERVICE_ACTION_IN_12 0xab #define SERVICE_ACTION_OUT_12 0xa9 #define SERVICE_ACTION_BIDIRECTIONAL 0x9d -#define SERVICE_ACTION_IN_16 0x9e #define SERVICE_ACTION_OUT_16 0x9f #define THIRD_PARTY_COPY_OUT 0x83 #define THIRD_PARTY_COPY_IN 0x84 diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 4ebbeae161e2..71e138044379 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -2159,7 +2159,7 @@ static void gdth_next(gdth_ha_str *ha) case VERIFY: case START_STOP: case MODE_SENSE: - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0], nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3], nscp->cmnd[4],nscp->cmnd[5])); @@ -2391,7 +2391,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data)); break; - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 && (ha->cache_feat & GDT_64BIT)) { gdth_rdcap16_data rdc16; diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index b02571390d01..378e0aae29ca 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -4210,7 +4210,7 @@ scsi_debug_queuecommand(struct scsi_cmnd *SCpnt) case READ_CAPACITY: errsts = resp_readcap(SCpnt, devip); break; - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: if (cmd[1] == SAI_READ_CAPACITY_16) errsts = resp_readcap16(SCpnt, devip); else if (cmd[1] == SAI_GET_LBA_STATUS) { diff --git a/drivers/scsi/scsi_trace.c b/drivers/scsi/scsi_trace.c index 503594e5f76d..82af28b90294 100644 --- a/drivers/scsi/scsi_trace.c +++ b/drivers/scsi/scsi_trace.c @@ -278,7 +278,7 @@ scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len) return scsi_trace_rw16(p, cdb, len); case UNMAP: return scsi_trace_unmap(p, cdb, len); - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: return scsi_trace_service_action_in(p, cdb, len); case VARIABLE_LENGTH_CMD: return scsi_trace_varlen(p, cdb, len); diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 54abcb220ab4..fedab3c21ddf 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1982,7 +1982,7 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp, do { memset(cmd, 0, 16); - cmd[0] = SERVICE_ACTION_IN; + cmd[0] = SERVICE_ACTION_IN_16; cmd[1] = SAI_READ_CAPACITY_16; cmd[13] = RC16_LEN; memset(buffer, 0, RC16_LEN); diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index fb87780929d2..75cbde1f7c5b 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -576,7 +576,7 @@ static inline int core_alua_state_standby( case SEND_DIAGNOSTIC: case READ_CAPACITY: return 0; - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: switch (cdb[1] & 0x1f) { case SAI_READ_CAPACITY_16: return 0; diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index ebe62afb957d..8d171ff77e75 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -852,7 +852,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) size = READ_CAP_LEN; cmd->execute_cmd = sbc_emulate_readcapacity; break; - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: switch (cmd->t_task_cdb[1] & 0x1f) { case SAI_READ_CAPACITY_16: cmd->execute_cmd = sbc_emulate_readcapacity_16; diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c index 6cdb7a534f23..024f58475a94 100644 --- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c +++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c @@ -912,7 +912,7 @@ static int get_cmd_dir(const unsigned char *cdb) case INQUIRY: case MODE_SENSE: case MODE_SENSE_10: - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: case MAINTENANCE_IN: case PERSISTENT_RESERVE_IN: case SECURITY_PROTOCOL_IN: diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index d17178e6fcdd..b354c0de324e 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -151,7 +151,7 @@ enum scsi_timeouts { #define VERIFY_16 0x8f #define SYNCHRONIZE_CACHE_16 0x91 #define WRITE_SAME_16 0x93 -#define SERVICE_ACTION_IN 0x9e +#define SERVICE_ACTION_IN_16 0x9e /* values for service action in */ #define SAI_READ_CAPACITY_16 0x10 #define SAI_GET_LBA_STATUS 0x12 diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h index db6c93510f74..079bd10a01b4 100644 --- a/include/trace/events/scsi.h +++ b/include/trace/events/scsi.h @@ -94,7 +94,7 @@ scsi_opcode_name(WRITE_16), \ scsi_opcode_name(VERIFY_16), \ scsi_opcode_name(WRITE_SAME_16), \ - scsi_opcode_name(SERVICE_ACTION_IN), \ + scsi_opcode_name(SERVICE_ACTION_IN_16), \ scsi_opcode_name(SAI_READ_CAPACITY_16), \ scsi_opcode_name(SAI_GET_LBA_STATUS), \ scsi_opcode_name(MI_REPORT_TARGET_PGS), \ diff --git a/include/trace/events/target.h b/include/trace/events/target.h index da9cc0f05c93..45403443dd82 100644 --- a/include/trace/events/target.h +++ b/include/trace/events/target.h @@ -96,7 +96,7 @@ scsi_opcode_name(WRITE_16), \ scsi_opcode_name(VERIFY_16), \ scsi_opcode_name(WRITE_SAME_16), \ - scsi_opcode_name(SERVICE_ACTION_IN), \ + scsi_opcode_name(SERVICE_ACTION_IN_16), \ scsi_opcode_name(SAI_READ_CAPACITY_16), \ scsi_opcode_name(SAI_GET_LBA_STATUS), \ scsi_opcode_name(MI_REPORT_TARGET_PGS), \ diff --git a/tools/lib/traceevent/plugin_scsi.c b/tools/lib/traceevent/plugin_scsi.c index eda326fc8620..c699f477a101 100644 --- a/tools/lib/traceevent/plugin_scsi.c +++ b/tools/lib/traceevent/plugin_scsi.c @@ -107,7 +107,7 @@ typedef unsigned int u32; #define VERIFY_16 0x8f #define SYNCHRONIZE_CACHE_16 0x91 #define WRITE_SAME_16 0x93 -#define SERVICE_ACTION_IN 0x9e +#define SERVICE_ACTION_IN_16 0x9e /* values for service action in */ #define SAI_READ_CAPACITY_16 0x10 #define SAI_GET_LBA_STATUS 0x12 @@ -393,7 +393,7 @@ scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len) return scsi_trace_rw16(p, cdb, len); case UNMAP: return scsi_trace_unmap(p, cdb, len); - case SERVICE_ACTION_IN: + case SERVICE_ACTION_IN_16: return scsi_trace_service_action_in(p, cdb, len); case VARIABLE_LENGTH_CMD: return scsi_trace_varlen(p, cdb, len); -- cgit v1.2.3 From 85686f696d81a4bcfa5e51ee9ee2b6aae5531c6f Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 17 Nov 2014 14:25:20 +0100 Subject: scsi: add SPC-3 command definitions SPC-3 defines SERVICE ACTION IN(12), SERVICE_ACTION OUT(12), SERVICE ACTION OUT(16), and SERVICE ACTION BIDIRECTIONAL. And READ MEDIA SERIAL NUMBER has long since been deprecated. So update callers to refer to the new cdb name. Signed-off-by: Hannes Reinecke Tested-by: Robert Elliott Reviewed-by: Robert Elliott Signed-off-by: Christoph Hellwig --- drivers/scsi/constants.c | 4 ---- drivers/target/target_core_pr.c | 2 +- include/scsi/scsi.h | 10 +++++++--- tools/lib/traceevent/plugin_scsi.c | 5 ++++- 4 files changed, 12 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 52afabd23d9f..aee62f60b43d 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -21,10 +21,6 @@ /* Commands with service actions that change the command name */ -#define SERVICE_ACTION_IN_12 0xab -#define SERVICE_ACTION_OUT_12 0xa9 -#define SERVICE_ACTION_BIDIRECTIONAL 0x9d -#define SERVICE_ACTION_OUT_16 0x9f #define THIRD_PARTY_COPY_OUT 0x83 #define THIRD_PARTY_COPY_IN 0x84 diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 8c60a1a1ae8d..806bfba894ca 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -459,7 +459,7 @@ static int core_scsi3_pr_seq_non_holder( case ACCESS_CONTROL_OUT: case INQUIRY: case LOG_SENSE: - case READ_MEDIA_SERIAL_NUMBER: + case SERVICE_ACTION_IN_12: case REPORT_LUNS: case REQUEST_SENSE: case PERSISTENT_RESERVE_IN: diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index b354c0de324e..8a7f8ad58aac 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -128,8 +128,10 @@ enum scsi_timeouts { #define MOVE_MEDIUM 0xa5 #define EXCHANGE_MEDIUM 0xa6 #define READ_12 0xa8 +#define SERVICE_ACTION_OUT_12 0xa9 #define WRITE_12 0xaa -#define READ_MEDIA_SERIAL_NUMBER 0xab +#define READ_MEDIA_SERIAL_NUMBER 0xab /* Obsolete with SPC-2 */ +#define SERVICE_ACTION_IN_12 0xab #define WRITE_VERIFY_12 0xae #define VERIFY_12 0xaf #define SEARCH_HIGH_12 0xb0 @@ -151,7 +153,9 @@ enum scsi_timeouts { #define VERIFY_16 0x8f #define SYNCHRONIZE_CACHE_16 0x91 #define WRITE_SAME_16 0x93 +#define SERVICE_ACTION_BIDIRECTIONAL 0x9d #define SERVICE_ACTION_IN_16 0x9e +#define SERVICE_ACTION_OUT_16 0x9f /* values for service action in */ #define SAI_READ_CAPACITY_16 0x10 #define SAI_GET_LBA_STATUS 0x12 @@ -165,8 +169,8 @@ enum scsi_timeouts { #define MI_REPORT_ALIASES 0x0b #define MI_REPORT_SUPPORTED_OPERATION_CODES 0x0c #define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0x0d -#define MI_REPORT_PRIORITY 0x0e -#define MI_REPORT_TIMESTAMP 0x0f +#define MI_REPORT_PRIORITY 0x0e +#define MI_REPORT_TIMESTAMP 0x0f #define MI_MANAGEMENT_PROTOCOL_IN 0x10 /* value for MI_REPORT_TARGET_PGS ext header */ #define MI_EXT_HDR_PARAM_FMT 0x20 diff --git a/tools/lib/traceevent/plugin_scsi.c b/tools/lib/traceevent/plugin_scsi.c index c699f477a101..3727de48c8d5 100644 --- a/tools/lib/traceevent/plugin_scsi.c +++ b/tools/lib/traceevent/plugin_scsi.c @@ -85,8 +85,9 @@ typedef unsigned int u32; #define MOVE_MEDIUM 0xa5 #define EXCHANGE_MEDIUM 0xa6 #define READ_12 0xa8 +#define SERVICE_ACTION_OUT_12 0xa9 #define WRITE_12 0xaa -#define READ_MEDIA_SERIAL_NUMBER 0xab +#define SERVICE_ACTION_IN_12 0xab #define WRITE_VERIFY_12 0xae #define VERIFY_12 0xaf #define SEARCH_HIGH_12 0xb0 @@ -107,7 +108,9 @@ typedef unsigned int u32; #define VERIFY_16 0x8f #define SYNCHRONIZE_CACHE_16 0x91 #define WRITE_SAME_16 0x93 +#define SERVICE_ACTION_BIDIRECTIONAL 0x9d #define SERVICE_ACTION_IN_16 0x9e +#define SERVICE_ACTION_OUT_16 0x9f /* values for service action in */ #define SAI_READ_CAPACITY_16 0x10 #define SAI_GET_LBA_STATUS 0x12 -- cgit v1.2.3 From 7ff28aee40c42676abc3baab122d45826726ea49 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Mon, 24 Nov 2014 23:24:40 +0100 Subject: eeprom-93cx6: Add (read-only) support for 8-bit mode Add read-only support for EEPROMs configured in 8-bit mode (ORG pin connected to GND). This will be used by wd719x driver. Signed-off-by: Ondrej Zary Reviewed-by: Hannes Reinecke Signed-off-by: Christoph Hellwig --- drivers/misc/eeprom/eeprom_93cx6.c | 62 +++++++++++++++++++++++++++++++++++++- include/linux/eeprom_93cx6.h | 4 +++ 2 files changed, 65 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/misc/eeprom/eeprom_93cx6.c b/drivers/misc/eeprom/eeprom_93cx6.c index 0ff4b02177be..0cf2c9d676be 100644 --- a/drivers/misc/eeprom/eeprom_93cx6.c +++ b/drivers/misc/eeprom/eeprom_93cx6.c @@ -170,7 +170,7 @@ static void eeprom_93cx6_read_bits(struct eeprom_93cx6 *eeprom, } /** - * eeprom_93cx6_read - Read multiple words from eeprom + * eeprom_93cx6_read - Read a word from eeprom * @eeprom: Pointer to eeprom structure * @word: Word index from where we should start reading * @data: target pointer where the information will have to be stored @@ -234,6 +234,66 @@ void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom, const u8 word, } EXPORT_SYMBOL_GPL(eeprom_93cx6_multiread); +/** + * eeprom_93cx6_readb - Read a byte from eeprom + * @eeprom: Pointer to eeprom structure + * @word: Byte index from where we should start reading + * @data: target pointer where the information will have to be stored + * + * This function will read a byte of the eeprom data + * into the given data pointer. + */ +void eeprom_93cx6_readb(struct eeprom_93cx6 *eeprom, const u8 byte, + u8 *data) +{ + u16 command; + u16 tmp; + + /* + * Initialize the eeprom register + */ + eeprom_93cx6_startup(eeprom); + + /* + * Select the read opcode and the byte to be read. + */ + command = (PCI_EEPROM_READ_OPCODE << (eeprom->width + 1)) | byte; + eeprom_93cx6_write_bits(eeprom, command, + PCI_EEPROM_WIDTH_OPCODE + eeprom->width + 1); + + /* + * Read the requested 8 bits. + */ + eeprom_93cx6_read_bits(eeprom, &tmp, 8); + *data = tmp & 0xff; + + /* + * Cleanup eeprom register. + */ + eeprom_93cx6_cleanup(eeprom); +} +EXPORT_SYMBOL_GPL(eeprom_93cx6_readb); + +/** + * eeprom_93cx6_multireadb - Read multiple bytes from eeprom + * @eeprom: Pointer to eeprom structure + * @byte: Index from where we should start reading + * @data: target pointer where the information will have to be stored + * @words: Number of bytes that should be read. + * + * This function will read all requested bytes from the eeprom, + * this is done by calling eeprom_93cx6_readb() multiple times. + */ +void eeprom_93cx6_multireadb(struct eeprom_93cx6 *eeprom, const u8 byte, + u8 *data, const u16 bytes) +{ + unsigned int i; + + for (i = 0; i < bytes; i++) + eeprom_93cx6_readb(eeprom, byte + i, &data[i]); +} +EXPORT_SYMBOL_GPL(eeprom_93cx6_multireadb); + /** * eeprom_93cx6_wren - set the write enable state * @eeprom: Pointer to eeprom structure diff --git a/include/linux/eeprom_93cx6.h b/include/linux/eeprom_93cx6.h index e50f98b0297a..eb0b1988050a 100644 --- a/include/linux/eeprom_93cx6.h +++ b/include/linux/eeprom_93cx6.h @@ -75,6 +75,10 @@ extern void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom, const u8 word, u16 *data); extern void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom, const u8 word, __le16 *data, const u16 words); +extern void eeprom_93cx6_readb(struct eeprom_93cx6 *eeprom, + const u8 byte, u8 *data); +extern void eeprom_93cx6_multireadb(struct eeprom_93cx6 *eeprom, + const u8 byte, u8 *data, const u16 bytes); extern void eeprom_93cx6_wren(struct eeprom_93cx6 *eeprom, bool enable); -- cgit v1.2.3 From 79855d178557cc3e3ffd179fd26a64cef48dfb30 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 5 Nov 2014 10:36:28 +0100 Subject: libsas: remove task_collector mode The task_collector mode (or "latency_injector", (C) Dan Willians) is an optional I/O path in libsas that queues up scsi commands instead of directly sending it to the hardware. It generall increases latencies to in the optiomal case slightly reduce mmio traffic to the hardware. Only the obsolete aic94xx driver and the mvsas driver allowed to use it without recompiling the kernel, and most drivers didn't support it at all. Remove the giant blob of code to allow better optimizations for scsi-mq in the future. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Acked-by: Dan Williams --- Documentation/scsi/libsas.txt | 82 +---------------- drivers/scsi/aic94xx/aic94xx.h | 2 +- drivers/scsi/aic94xx/aic94xx_hwi.c | 3 +- drivers/scsi/aic94xx/aic94xx_init.c | 11 --- drivers/scsi/aic94xx/aic94xx_task.c | 13 ++- drivers/scsi/isci/init.c | 2 - drivers/scsi/isci/task.c | 147 ++++++++++++++---------------- drivers/scsi/isci/task.h | 1 - drivers/scsi/libsas/sas_ata.c | 9 +- drivers/scsi/libsas/sas_expander.c | 2 +- drivers/scsi/libsas/sas_init.c | 21 ----- drivers/scsi/libsas/sas_internal.h | 2 - drivers/scsi/libsas/sas_scsi_host.c | 176 +----------------------------------- drivers/scsi/mvsas/mv_init.c | 22 ----- drivers/scsi/mvsas/mv_sas.c | 109 +--------------------- drivers/scsi/mvsas/mv_sas.h | 10 +- drivers/scsi/pm8001/pm8001_init.c | 2 - drivers/scsi/pm8001/pm8001_sas.c | 22 +---- drivers/scsi/pm8001/pm8001_sas.h | 3 +- include/scsi/libsas.h | 14 +-- 20 files changed, 97 insertions(+), 556 deletions(-) (limited to 'include') diff --git a/Documentation/scsi/libsas.txt b/Documentation/scsi/libsas.txt index 3cc9c7843e15..8cac6492aade 100644 --- a/Documentation/scsi/libsas.txt +++ b/Documentation/scsi/libsas.txt @@ -226,9 +226,6 @@ static int register_sas_ha(struct my_sas_ha *my_ha) my_ha->sas_ha.lldd_dev_found = my_dev_found; my_ha->sas_ha.lldd_dev_gone = my_dev_gone; - my_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num; (1) - - my_ha->sas_ha.lldd_queue_size = ha_can_queue; my_ha->sas_ha.lldd_execute_task = my_execute_task; my_ha->sas_ha.lldd_abort_task = my_abort_task; @@ -247,28 +244,6 @@ static int register_sas_ha(struct my_sas_ha *my_ha) return sas_register_ha(&my_ha->sas_ha); } -(1) This is normally a LLDD parameter, something of the -lines of a task collector. What it tells the SAS Layer is -whether the SAS layer should run in Direct Mode (default: -value 0 or 1) or Task Collector Mode (value greater than 1). - -In Direct Mode, the SAS Layer calls Execute Task as soon as -it has a command to send to the SDS, _and_ this is a single -command, i.e. not linked. - -Some hardware (e.g. aic94xx) has the capability to DMA more -than one task at a time (interrupt) from host memory. Task -Collector Mode is an optional feature for HAs which support -this in their hardware. (Again, it is completely optional -even if your hardware supports it.) - -In Task Collector Mode, the SAS Layer would do _natural_ -coalescing of tasks and at the appropriate moment it would -call your driver to DMA more than one task in a single HA -interrupt. DMBS may want to use this by insmod/modprobe -setting the lldd_max_execute_num to something greater than -1. - (2) SAS 1.1 does not define I_T Nexus Reset TMF. Events @@ -325,71 +300,22 @@ PHYE_SPINUP_HOLD -- SATA is present, COMWAKE not sent. The Execute Command SCSI RPC: - int (*lldd_execute_task)(struct sas_task *, int num, - unsigned long gfp_flags); + int (*lldd_execute_task)(struct sas_task *, gfp_t gfp_flags); -Used to queue a task to the SAS LLDD. @task is the tasks to -be executed. @num should be the number of tasks being -queued at this function call (they are linked listed via -task::list), @gfp_mask should be the gfp_mask defining the -context of the caller. +Used to queue a task to the SAS LLDD. @task is the task to be executed. +@gfp_mask is the gfp_mask defining the context of the caller. This function should implement the Execute Command SCSI RPC, -or if you're sending a SCSI Task as linked commands, you -should also use this function. -That is, when lldd_execute_task() is called, the command(s) +That is, when lldd_execute_task() is called, the command go out on the transport *immediately*. There is *no* queuing of any sort and at any level in a SAS LLDD. -The use of task::list is two-fold, one for linked commands, -the other discussed below. - -It is possible to queue up more than one task at a time, by -initializing the list element of struct sas_task, and -passing the number of tasks enlisted in this manner in num. - Returns: -SAS_QUEUE_FULL, -ENOMEM, nothing was queued; 0, the task(s) were queued. -If you want to pass num > 1, then either -A) you're the only caller of this function and keep track - of what you've queued to the LLDD, or -B) you know what you're doing and have a strategy of - retrying. - -As opposed to queuing one task at a time (function call), -batch queuing of tasks, by having num > 1, greatly -simplifies LLDD code, sequencer code, and _hardware design_, -and has some performance advantages in certain situations -(DBMS). - -The LLDD advertises if it can take more than one command at -a time at lldd_execute_task(), by setting the -lldd_max_execute_num parameter (controlled by "collector" -module parameter in aic94xx SAS LLDD). - -You should leave this to the default 1, unless you know what -you're doing. - -This is a function of the LLDD, to which the SAS layer can -cater to. - -int lldd_queue_size - The host adapter's queue size. This is the maximum -number of commands the lldd can have pending to domain -devices on behalf of all upper layers submitting through -lldd_execute_task(). - -You really want to set this to something (much) larger than -1. - -This _really_ has absolutely nothing to do with queuing. -There is no queuing in SAS LLDDs. - struct sas_task { dev -- the device this task is destined to - list -- must be initialized (INIT_LIST_HEAD) task_proto -- _one_ of enum sas_proto scatter -- pointer to scatter gather list array num_scatter -- number of elements in scatter diff --git a/drivers/scsi/aic94xx/aic94xx.h b/drivers/scsi/aic94xx/aic94xx.h index 66cda669b417..26d4ad9ede2e 100644 --- a/drivers/scsi/aic94xx/aic94xx.h +++ b/drivers/scsi/aic94xx/aic94xx.h @@ -78,7 +78,7 @@ void asd_dev_gone(struct domain_device *dev); void asd_invalidate_edb(struct asd_ascb *ascb, int edb_id); -int asd_execute_task(struct sas_task *, int num, gfp_t gfp_flags); +int asd_execute_task(struct sas_task *task, gfp_t gfp_flags); void asd_set_dmamode(struct domain_device *dev); diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c index 4df867e07b20..9f636a34d595 100644 --- a/drivers/scsi/aic94xx/aic94xx_hwi.c +++ b/drivers/scsi/aic94xx/aic94xx_hwi.c @@ -1200,8 +1200,7 @@ static void asd_start_scb_timers(struct list_head *list) * Case A: we can send the whole batch at once. Increment "pending" * in the beginning of this function, when it is checked, in order to * eliminate races when this function is called by multiple processes. - * Case B: should never happen if the managing layer considers - * lldd_queue_size. + * Case B: should never happen. */ int asd_post_ascb_list(struct asd_ha_struct *asd_ha, struct asd_ascb *ascb, int num) diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index a64cf932d03d..14fc018436c2 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -49,14 +49,6 @@ MODULE_PARM_DESC(use_msi, "\n" "\tEnable(1) or disable(0) using PCI MSI.\n" "\tDefault: 0"); -static int lldd_max_execute_num = 0; -module_param_named(collector, lldd_max_execute_num, int, S_IRUGO); -MODULE_PARM_DESC(collector, "\n" - "\tIf greater than one, tells the SAS Layer to run in Task Collector\n" - "\tMode. If 1 or 0, tells the SAS Layer to run in Direct Mode.\n" - "\tThe aic94xx SAS LLDD supports both modes.\n" - "\tDefault: 0 (Direct Mode).\n"); - static struct scsi_transport_template *aic94xx_transport_template; static int asd_scan_finished(struct Scsi_Host *, unsigned long); static void asd_scan_start(struct Scsi_Host *); @@ -711,9 +703,6 @@ static int asd_register_sas_ha(struct asd_ha_struct *asd_ha) asd_ha->sas_ha.sas_port= sas_ports; asd_ha->sas_ha.num_phys= ASD_MAX_PHYS; - asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue; - asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num; - return sas_register_ha(&asd_ha->sas_ha); } diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c index 59b86e260ce9..5ff1ce7ba1f4 100644 --- a/drivers/scsi/aic94xx/aic94xx_task.c +++ b/drivers/scsi/aic94xx/aic94xx_task.c @@ -543,8 +543,7 @@ static int asd_can_queue(struct asd_ha_struct *asd_ha, int num) return res; } -int asd_execute_task(struct sas_task *task, const int num, - gfp_t gfp_flags) +int asd_execute_task(struct sas_task *task, gfp_t gfp_flags) { int res = 0; LIST_HEAD(alist); @@ -553,11 +552,11 @@ int asd_execute_task(struct sas_task *task, const int num, struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha; unsigned long flags; - res = asd_can_queue(asd_ha, num); + res = asd_can_queue(asd_ha, 1); if (res) return res; - res = num; + res = 1; ascb = asd_ascb_alloc_list(asd_ha, &res, gfp_flags); if (res) { res = -ENOMEM; @@ -568,7 +567,7 @@ int asd_execute_task(struct sas_task *task, const int num, list_for_each_entry(a, &alist, list) { a->uldd_task = t; t->lldd_task = a; - t = list_entry(t->list.next, struct sas_task, list); + break; } list_for_each_entry(a, &alist, list) { t = a->uldd_task; @@ -601,7 +600,7 @@ int asd_execute_task(struct sas_task *task, const int num, } list_del_init(&alist); - res = asd_post_ascb_list(asd_ha, ascb, num); + res = asd_post_ascb_list(asd_ha, ascb, 1); if (unlikely(res)) { a = NULL; __list_add(&alist, ascb->list.prev, &ascb->list); @@ -639,6 +638,6 @@ out_err_unmap: out_err: if (ascb) asd_ascb_free_list(ascb); - asd_can_dequeue(asd_ha, num); + asd_can_dequeue(asd_ha, 1); return res; } diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index a81e546595dd..724c6265b667 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -260,8 +260,6 @@ static int isci_register_sas_ha(struct isci_host *isci_host) sas_ha->sas_port = sas_ports; sas_ha->num_phys = SCI_MAX_PHYS; - sas_ha->lldd_queue_size = ISCI_CAN_QUEUE_VAL; - sas_ha->lldd_max_execute_num = 1; sas_ha->strict_wide_ports = 1; sas_register_ha(sas_ha); diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 5d6fda72d659..3f63c6318b0d 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -117,104 +117,97 @@ static inline int isci_device_io_ready(struct isci_remote_device *idev, * functions. This function is called by libsas to send a task down to * hardware. * @task: This parameter specifies the SAS task to send. - * @num: This parameter specifies the number of tasks to queue. * @gfp_flags: This parameter specifies the context of this call. * * status, zero indicates success. */ -int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) +int isci_task_execute_task(struct sas_task *task, gfp_t gfp_flags) { struct isci_host *ihost = dev_to_ihost(task->dev); struct isci_remote_device *idev; unsigned long flags; + enum sci_status status = SCI_FAILURE; bool io_ready; u16 tag; - dev_dbg(&ihost->pdev->dev, "%s: num=%d\n", __func__, num); + spin_lock_irqsave(&ihost->scic_lock, flags); + idev = isci_lookup_device(task->dev); + io_ready = isci_device_io_ready(idev, task); + tag = isci_alloc_tag(ihost); + spin_unlock_irqrestore(&ihost->scic_lock, flags); - for_each_sas_task(num, task) { - enum sci_status status = SCI_FAILURE; + dev_dbg(&ihost->pdev->dev, + "task: %p, dev: %p idev: %p:%#lx cmd = %p\n", + task, task->dev, idev, idev ? idev->flags : 0, + task->uldd_task); - spin_lock_irqsave(&ihost->scic_lock, flags); - idev = isci_lookup_device(task->dev); - io_ready = isci_device_io_ready(idev, task); - tag = isci_alloc_tag(ihost); - spin_unlock_irqrestore(&ihost->scic_lock, flags); + if (!idev) { + isci_task_refuse(ihost, task, SAS_TASK_UNDELIVERED, + SAS_DEVICE_UNKNOWN); + } else if (!io_ready || tag == SCI_CONTROLLER_INVALID_IO_TAG) { + /* Indicate QUEUE_FULL so that the scsi midlayer + * retries. + */ + isci_task_refuse(ihost, task, SAS_TASK_COMPLETE, + SAS_QUEUE_FULL); + } else { + /* There is a device and it's ready for I/O. */ + spin_lock_irqsave(&task->task_state_lock, flags); - dev_dbg(&ihost->pdev->dev, - "task: %p, num: %d dev: %p idev: %p:%#lx cmd = %p\n", - task, num, task->dev, idev, idev ? idev->flags : 0, - task->uldd_task); - - if (!idev) { - isci_task_refuse(ihost, task, SAS_TASK_UNDELIVERED, - SAS_DEVICE_UNKNOWN); - } else if (!io_ready || tag == SCI_CONTROLLER_INVALID_IO_TAG) { - /* Indicate QUEUE_FULL so that the scsi midlayer - * retries. - */ - isci_task_refuse(ihost, task, SAS_TASK_COMPLETE, - SAS_QUEUE_FULL); + if (task->task_state_flags & SAS_TASK_STATE_ABORTED) { + /* The I/O was aborted. */ + spin_unlock_irqrestore(&task->task_state_lock, flags); + + isci_task_refuse(ihost, task, + SAS_TASK_UNDELIVERED, + SAM_STAT_TASK_ABORTED); } else { - /* There is a device and it's ready for I/O. */ - spin_lock_irqsave(&task->task_state_lock, flags); - - if (task->task_state_flags & SAS_TASK_STATE_ABORTED) { - /* The I/O was aborted. */ - spin_unlock_irqrestore(&task->task_state_lock, - flags); - - isci_task_refuse(ihost, task, - SAS_TASK_UNDELIVERED, - SAM_STAT_TASK_ABORTED); - } else { - task->task_state_flags |= SAS_TASK_AT_INITIATOR; + task->task_state_flags |= SAS_TASK_AT_INITIATOR; + spin_unlock_irqrestore(&task->task_state_lock, flags); + + /* build and send the request. */ + status = isci_request_execute(ihost, idev, task, tag); + + if (status != SCI_SUCCESS) { + spin_lock_irqsave(&task->task_state_lock, flags); + /* Did not really start this command. */ + task->task_state_flags &= ~SAS_TASK_AT_INITIATOR; spin_unlock_irqrestore(&task->task_state_lock, flags); - /* build and send the request. */ - status = isci_request_execute(ihost, idev, task, tag); - - if (status != SCI_SUCCESS) { - - spin_lock_irqsave(&task->task_state_lock, flags); - /* Did not really start this command. */ - task->task_state_flags &= ~SAS_TASK_AT_INITIATOR; - spin_unlock_irqrestore(&task->task_state_lock, flags); - - if (test_bit(IDEV_GONE, &idev->flags)) { - - /* Indicate that the device - * is gone. - */ - isci_task_refuse(ihost, task, - SAS_TASK_UNDELIVERED, - SAS_DEVICE_UNKNOWN); - } else { - /* Indicate QUEUE_FULL so that - * the scsi midlayer retries. - * If the request failed for - * remote device reasons, it - * gets returned as - * SAS_TASK_UNDELIVERED next - * time through. - */ - isci_task_refuse(ihost, task, - SAS_TASK_COMPLETE, - SAS_QUEUE_FULL); - } + if (test_bit(IDEV_GONE, &idev->flags)) { + /* Indicate that the device + * is gone. + */ + isci_task_refuse(ihost, task, + SAS_TASK_UNDELIVERED, + SAS_DEVICE_UNKNOWN); + } else { + /* Indicate QUEUE_FULL so that + * the scsi midlayer retries. + * If the request failed for + * remote device reasons, it + * gets returned as + * SAS_TASK_UNDELIVERED next + * time through. + */ + isci_task_refuse(ihost, task, + SAS_TASK_COMPLETE, + SAS_QUEUE_FULL); } } } - if (status != SCI_SUCCESS && tag != SCI_CONTROLLER_INVALID_IO_TAG) { - spin_lock_irqsave(&ihost->scic_lock, flags); - /* command never hit the device, so just free - * the tci and skip the sequence increment - */ - isci_tci_free(ihost, ISCI_TAG_TCI(tag)); - spin_unlock_irqrestore(&ihost->scic_lock, flags); - } - isci_put_device(idev); } + + if (status != SCI_SUCCESS && tag != SCI_CONTROLLER_INVALID_IO_TAG) { + spin_lock_irqsave(&ihost->scic_lock, flags); + /* command never hit the device, so just free + * the tci and skip the sequence increment + */ + isci_tci_free(ihost, ISCI_TAG_TCI(tag)); + spin_unlock_irqrestore(&ihost->scic_lock, flags); + } + + isci_put_device(idev); return 0; } diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index 9c06cbad1d26..8f4531f22ac2 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -131,7 +131,6 @@ static inline void isci_print_tmf(struct isci_host *ihost, struct isci_tmf *tmf) int isci_task_execute_task( struct sas_task *task, - int num, gfp_t gfp_flags); int isci_task_abort_task( diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 766098af4eb7..577770fdee86 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -171,7 +171,6 @@ static void sas_ata_task_done(struct sas_task *task) spin_unlock_irqrestore(ap->lock, flags); qc_already_gone: - list_del_init(&task->list); sas_free_task(task); } @@ -244,12 +243,7 @@ static unsigned int sas_ata_qc_issue(struct ata_queued_cmd *qc) if (qc->scsicmd) ASSIGN_SAS_TASK(qc->scsicmd, task); - if (sas_ha->lldd_max_execute_num < 2) - ret = i->dft->lldd_execute_task(task, 1, GFP_ATOMIC); - else - ret = sas_queue_up(task); - - /* Examine */ + ret = i->dft->lldd_execute_task(task, GFP_ATOMIC); if (ret) { SAS_DPRINTK("lldd_execute_task returned: %d\n", ret); @@ -485,7 +479,6 @@ static void sas_ata_internal_abort(struct sas_task *task) return; out: - list_del_init(&task->list); sas_free_task(task); } diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 0cac7d8fd0f7..022bb6e10d98 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -96,7 +96,7 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size, task->slow_task->timer.expires = jiffies + SMP_TIMEOUT*HZ; add_timer(&task->slow_task->timer); - res = i->dft->lldd_execute_task(task, 1, GFP_KERNEL); + res = i->dft->lldd_execute_task(task, GFP_KERNEL); if (res) { del_timer(&task->slow_task->timer); diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c index dbc8a793fd86..362da44f2948 100644 --- a/drivers/scsi/libsas/sas_init.c +++ b/drivers/scsi/libsas/sas_init.c @@ -45,7 +45,6 @@ struct sas_task *sas_alloc_task(gfp_t flags) struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags); if (task) { - INIT_LIST_HEAD(&task->list); spin_lock_init(&task->task_state_lock); task->task_state_flags = SAS_TASK_STATE_PENDING; } @@ -77,7 +76,6 @@ EXPORT_SYMBOL_GPL(sas_alloc_slow_task); void sas_free_task(struct sas_task *task) { if (task) { - BUG_ON(!list_empty(&task->list)); kfree(task->slow_task); kmem_cache_free(sas_task_cache, task); } @@ -127,11 +125,6 @@ int sas_register_ha(struct sas_ha_struct *sas_ha) spin_lock_init(&sas_ha->phy_port_lock); sas_hash_addr(sas_ha->hashed_sas_addr, sas_ha->sas_addr); - if (sas_ha->lldd_queue_size == 0) - sas_ha->lldd_queue_size = 1; - else if (sas_ha->lldd_queue_size == -1) - sas_ha->lldd_queue_size = 128; /* Sanity */ - set_bit(SAS_HA_REGISTERED, &sas_ha->state); spin_lock_init(&sas_ha->lock); mutex_init(&sas_ha->drain_mutex); @@ -157,15 +150,6 @@ int sas_register_ha(struct sas_ha_struct *sas_ha) goto Undo_ports; } - if (sas_ha->lldd_max_execute_num > 1) { - error = sas_init_queue(sas_ha); - if (error) { - printk(KERN_NOTICE "couldn't start queue thread:%d, " - "running in direct mode\n", error); - sas_ha->lldd_max_execute_num = 1; - } - } - INIT_LIST_HEAD(&sas_ha->eh_done_q); INIT_LIST_HEAD(&sas_ha->eh_ata_q); @@ -201,11 +185,6 @@ int sas_unregister_ha(struct sas_ha_struct *sas_ha) __sas_drain_work(sas_ha); mutex_unlock(&sas_ha->drain_mutex); - if (sas_ha->lldd_max_execute_num > 1) { - sas_shutdown_queue(sas_ha); - sas_ha->lldd_max_execute_num = 1; - } - return 0; } diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h index 7e7ba83f0a21..9cf0bc260b0e 100644 --- a/drivers/scsi/libsas/sas_internal.h +++ b/drivers/scsi/libsas/sas_internal.h @@ -66,9 +66,7 @@ void sas_unregister_ports(struct sas_ha_struct *sas_ha); enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *); -int sas_init_queue(struct sas_ha_struct *sas_ha); int sas_init_events(struct sas_ha_struct *sas_ha); -void sas_shutdown_queue(struct sas_ha_struct *sas_ha); void sas_disable_revalidation(struct sas_ha_struct *ha); void sas_enable_revalidation(struct sas_ha_struct *ha); void __sas_drain_work(struct sas_ha_struct *ha); diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index b492293d51f2..72918d227ead 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -112,7 +112,6 @@ static void sas_end_task(struct scsi_cmnd *sc, struct sas_task *task) sc->result = (hs << 16) | stat; ASSIGN_SAS_TASK(sc, NULL); - list_del_init(&task->list); sas_free_task(task); } @@ -138,7 +137,6 @@ static void sas_scsi_task_done(struct sas_task *task) if (unlikely(!sc)) { SAS_DPRINTK("task_done called with non existing SCSI cmnd!\n"); - list_del_init(&task->list); sas_free_task(task); return; } @@ -179,31 +177,10 @@ static struct sas_task *sas_create_task(struct scsi_cmnd *cmd, return task; } -int sas_queue_up(struct sas_task *task) -{ - struct sas_ha_struct *sas_ha = task->dev->port->ha; - struct scsi_core *core = &sas_ha->core; - unsigned long flags; - LIST_HEAD(list); - - spin_lock_irqsave(&core->task_queue_lock, flags); - if (sas_ha->lldd_queue_size < core->task_queue_size + 1) { - spin_unlock_irqrestore(&core->task_queue_lock, flags); - return -SAS_QUEUE_FULL; - } - list_add_tail(&task->list, &core->task_queue); - core->task_queue_size += 1; - spin_unlock_irqrestore(&core->task_queue_lock, flags); - wake_up_process(core->queue_thread); - - return 0; -} - int sas_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) { struct sas_internal *i = to_sas_internal(host->transportt); struct domain_device *dev = cmd_to_domain_dev(cmd); - struct sas_ha_struct *sas_ha = dev->port->ha; struct sas_task *task; int res = 0; @@ -224,12 +201,7 @@ int sas_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) if (!task) return SCSI_MLQUEUE_HOST_BUSY; - /* Queue up, Direct Mode or Task Collector Mode. */ - if (sas_ha->lldd_max_execute_num < 2) - res = i->dft->lldd_execute_task(task, 1, GFP_ATOMIC); - else - res = sas_queue_up(task); - + res = i->dft->lldd_execute_task(task, GFP_ATOMIC); if (res) goto out_free_task; return 0; @@ -323,37 +295,17 @@ enum task_disposition { TASK_IS_DONE, TASK_IS_ABORTED, TASK_IS_AT_LU, - TASK_IS_NOT_AT_HA, TASK_IS_NOT_AT_LU, TASK_ABORT_FAILED, }; static enum task_disposition sas_scsi_find_task(struct sas_task *task) { - struct sas_ha_struct *ha = task->dev->port->ha; unsigned long flags; int i, res; struct sas_internal *si = to_sas_internal(task->dev->port->ha->core.shost->transportt); - if (ha->lldd_max_execute_num > 1) { - struct scsi_core *core = &ha->core; - struct sas_task *t, *n; - - mutex_lock(&core->task_queue_flush); - spin_lock_irqsave(&core->task_queue_lock, flags); - list_for_each_entry_safe(t, n, &core->task_queue, list) - if (task == t) { - list_del_init(&t->list); - break; - } - spin_unlock_irqrestore(&core->task_queue_lock, flags); - mutex_unlock(&core->task_queue_flush); - - if (task == t) - return TASK_IS_NOT_AT_HA; - } - for (i = 0; i < 5; i++) { SAS_DPRINTK("%s: aborting task 0x%p\n", __func__, task); res = si->dft->lldd_abort_task(task); @@ -667,14 +619,6 @@ static void sas_eh_handle_sas_errors(struct Scsi_Host *shost, struct list_head * cmd->eh_eflags = 0; switch (res) { - case TASK_IS_NOT_AT_HA: - SAS_DPRINTK("%s: task 0x%p is not at ha: %s\n", - __func__, task, - cmd->retries ? "retry" : "aborted"); - if (cmd->retries) - cmd->retries--; - sas_eh_finish_cmd(cmd); - continue; case TASK_IS_DONE: SAS_DPRINTK("%s: task 0x%p is done\n", __func__, task); @@ -836,9 +780,6 @@ retry: scsi_eh_ready_devs(shost, &eh_work_q, &ha->eh_done_q); out: - if (ha->lldd_max_execute_num > 1) - wake_up_process(ha->core.queue_thread); - sas_eh_handle_resets(shost); /* now link into libata eh --- if we have any ata devices */ @@ -984,121 +925,6 @@ int sas_bios_param(struct scsi_device *scsi_dev, return 0; } -/* ---------- Task Collector Thread implementation ---------- */ - -static void sas_queue(struct sas_ha_struct *sas_ha) -{ - struct scsi_core *core = &sas_ha->core; - unsigned long flags; - LIST_HEAD(q); - int can_queue; - int res; - struct sas_internal *i = to_sas_internal(core->shost->transportt); - - mutex_lock(&core->task_queue_flush); - spin_lock_irqsave(&core->task_queue_lock, flags); - while (!kthread_should_stop() && - !list_empty(&core->task_queue) && - !test_bit(SAS_HA_FROZEN, &sas_ha->state)) { - - can_queue = sas_ha->lldd_queue_size - core->task_queue_size; - if (can_queue >= 0) { - can_queue = core->task_queue_size; - list_splice_init(&core->task_queue, &q); - } else { - struct list_head *a, *n; - - can_queue = sas_ha->lldd_queue_size; - list_for_each_safe(a, n, &core->task_queue) { - list_move_tail(a, &q); - if (--can_queue == 0) - break; - } - can_queue = sas_ha->lldd_queue_size; - } - core->task_queue_size -= can_queue; - spin_unlock_irqrestore(&core->task_queue_lock, flags); - { - struct sas_task *task = list_entry(q.next, - struct sas_task, - list); - list_del_init(&q); - res = i->dft->lldd_execute_task(task, can_queue, - GFP_KERNEL); - if (unlikely(res)) - __list_add(&q, task->list.prev, &task->list); - } - spin_lock_irqsave(&core->task_queue_lock, flags); - if (res) { - list_splice_init(&q, &core->task_queue); /*at head*/ - core->task_queue_size += can_queue; - } - } - spin_unlock_irqrestore(&core->task_queue_lock, flags); - mutex_unlock(&core->task_queue_flush); -} - -/** - * sas_queue_thread -- The Task Collector thread - * @_sas_ha: pointer to struct sas_ha - */ -static int sas_queue_thread(void *_sas_ha) -{ - struct sas_ha_struct *sas_ha = _sas_ha; - - while (1) { - set_current_state(TASK_INTERRUPTIBLE); - schedule(); - sas_queue(sas_ha); - if (kthread_should_stop()) - break; - } - - return 0; -} - -int sas_init_queue(struct sas_ha_struct *sas_ha) -{ - struct scsi_core *core = &sas_ha->core; - - spin_lock_init(&core->task_queue_lock); - mutex_init(&core->task_queue_flush); - core->task_queue_size = 0; - INIT_LIST_HEAD(&core->task_queue); - - core->queue_thread = kthread_run(sas_queue_thread, sas_ha, - "sas_queue_%d", core->shost->host_no); - if (IS_ERR(core->queue_thread)) - return PTR_ERR(core->queue_thread); - return 0; -} - -void sas_shutdown_queue(struct sas_ha_struct *sas_ha) -{ - unsigned long flags; - struct scsi_core *core = &sas_ha->core; - struct sas_task *task, *n; - - kthread_stop(core->queue_thread); - - if (!list_empty(&core->task_queue)) - SAS_DPRINTK("HA: %llx: scsi core task queue is NOT empty!?\n", - SAS_ADDR(sas_ha->sas_addr)); - - spin_lock_irqsave(&core->task_queue_lock, flags); - list_for_each_entry_safe(task, n, &core->task_queue, list) { - struct scsi_cmnd *cmd = task->uldd_task; - - list_del_init(&task->list); - - ASSIGN_SAS_TASK(cmd, NULL); - sas_free_task(task); - cmd->result = DID_ABORT << 16; - cmd->scsi_done(cmd); - } - spin_unlock_irqrestore(&core->task_queue_lock, flags); -} - /* * Tell an upper layer that it needs to initiate an abort for a given task. * This should only ever be called by an LLDD. diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index ac7c03078409..f15df3de6790 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -26,18 +26,9 @@ #include "mv_sas.h" -static int lldd_max_execute_num = 1; -module_param_named(collector, lldd_max_execute_num, int, S_IRUGO); -MODULE_PARM_DESC(collector, "\n" - "\tIf greater than one, tells the SAS Layer to run in Task Collector\n" - "\tMode. If 1 or 0, tells the SAS Layer to run in Direct Mode.\n" - "\tThe mvsas SAS LLDD supports both modes.\n" - "\tDefault: 1 (Direct Mode).\n"); - int interrupt_coalescing = 0x80; static struct scsi_transport_template *mvs_stt; -struct kmem_cache *mvs_task_list_cache; static const struct mvs_chip_info mvs_chips[] = { [chip_6320] = { 1, 2, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, }, [chip_6440] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, }, @@ -513,14 +504,11 @@ static void mvs_post_sas_ha_init(struct Scsi_Host *shost, sha->num_phys = nr_core * chip_info->n_phy; - sha->lldd_max_execute_num = lldd_max_execute_num; - if (mvi->flags & MVF_FLAG_SOC) can_queue = MVS_SOC_CAN_QUEUE; else can_queue = MVS_CHIP_SLOT_SZ; - sha->lldd_queue_size = can_queue; shost->sg_tablesize = min_t(u16, SG_ALL, MVS_MAX_SG); shost->can_queue = can_queue; mvi->shost->cmd_per_lun = MVS_QUEUE_SIZE; @@ -833,16 +821,7 @@ static int __init mvs_init(void) if (!mvs_stt) return -ENOMEM; - mvs_task_list_cache = kmem_cache_create("mvs_task_list", sizeof(struct mvs_task_list), - 0, SLAB_HWCACHE_ALIGN, NULL); - if (!mvs_task_list_cache) { - rc = -ENOMEM; - mv_printk("%s: mvs_task_list_cache alloc failed! \n", __func__); - goto err_out; - } - rc = pci_register_driver(&mvs_pci_driver); - if (rc) goto err_out; @@ -857,7 +836,6 @@ static void __exit mvs_exit(void) { pci_unregister_driver(&mvs_pci_driver); sas_release_transport(mvs_stt); - kmem_cache_destroy(mvs_task_list_cache); } struct device_attribute *mvst_host_attrs[] = { diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c index ac52f7c99513..85d86a5cdb60 100644 --- a/drivers/scsi/mvsas/mv_sas.c +++ b/drivers/scsi/mvsas/mv_sas.c @@ -852,43 +852,7 @@ prep_out: return rc; } -static struct mvs_task_list *mvs_task_alloc_list(int *num, gfp_t gfp_flags) -{ - struct mvs_task_list *first = NULL; - - for (; *num > 0; --*num) { - struct mvs_task_list *mvs_list = kmem_cache_zalloc(mvs_task_list_cache, gfp_flags); - - if (!mvs_list) - break; - - INIT_LIST_HEAD(&mvs_list->list); - if (!first) - first = mvs_list; - else - list_add_tail(&mvs_list->list, &first->list); - - } - - return first; -} - -static inline void mvs_task_free_list(struct mvs_task_list *mvs_list) -{ - LIST_HEAD(list); - struct list_head *pos, *a; - struct mvs_task_list *mlist = NULL; - - __list_add(&list, mvs_list->list.prev, &mvs_list->list); - - list_for_each_safe(pos, a, &list) { - list_del_init(pos); - mlist = list_entry(pos, struct mvs_task_list, list); - kmem_cache_free(mvs_task_list_cache, mlist); - } -} - -static int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, +static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags, struct completion *completion, int is_tmf, struct mvs_tmf_task *tmf) { @@ -912,74 +876,9 @@ static int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, return rc; } -static int mvs_collector_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, - struct completion *completion, int is_tmf, - struct mvs_tmf_task *tmf) +int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags) { - struct domain_device *dev = task->dev; - struct mvs_prv_info *mpi = dev->port->ha->lldd_ha; - struct mvs_info *mvi = NULL; - struct sas_task *t = task; - struct mvs_task_list *mvs_list = NULL, *a; - LIST_HEAD(q); - int pass[2] = {0}; - u32 rc = 0; - u32 n = num; - unsigned long flags = 0; - - mvs_list = mvs_task_alloc_list(&n, gfp_flags); - if (n) { - printk(KERN_ERR "%s: mvs alloc list failed.\n", __func__); - rc = -ENOMEM; - goto free_list; - } - - __list_add(&q, mvs_list->list.prev, &mvs_list->list); - - list_for_each_entry(a, &q, list) { - a->task = t; - t = list_entry(t->list.next, struct sas_task, list); - } - - list_for_each_entry(a, &q , list) { - - t = a->task; - mvi = ((struct mvs_device *)t->dev->lldd_dev)->mvi_info; - - spin_lock_irqsave(&mvi->lock, flags); - rc = mvs_task_prep(t, mvi, is_tmf, tmf, &pass[mvi->id]); - if (rc) - dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc); - spin_unlock_irqrestore(&mvi->lock, flags); - } - - if (likely(pass[0])) - MVS_CHIP_DISP->start_delivery(mpi->mvi[0], - (mpi->mvi[0]->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1)); - - if (likely(pass[1])) - MVS_CHIP_DISP->start_delivery(mpi->mvi[1], - (mpi->mvi[1]->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1)); - - list_del_init(&q); - -free_list: - if (mvs_list) - mvs_task_free_list(mvs_list); - - return rc; -} - -int mvs_queue_command(struct sas_task *task, const int num, - gfp_t gfp_flags) -{ - struct mvs_device *mvi_dev = task->dev->lldd_dev; - struct sas_ha_struct *sas = mvi_dev->mvi_info->sas; - - if (sas->lldd_max_execute_num < 2) - return mvs_task_exec(task, num, gfp_flags, NULL, 0, NULL); - else - return mvs_collector_task_exec(task, num, gfp_flags, NULL, 0, NULL); + return mvs_task_exec(task, gfp_flags, NULL, 0, NULL); } static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc) @@ -1411,7 +1310,7 @@ static int mvs_exec_internal_tmf_task(struct domain_device *dev, task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ; add_timer(&task->slow_task->timer); - res = mvs_task_exec(task, 1, GFP_KERNEL, NULL, 1, tmf); + res = mvs_task_exec(task, GFP_KERNEL, NULL, 1, tmf); if (res) { del_timer(&task->slow_task->timer); diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h index d6b19dc80bee..dc409c04747a 100644 --- a/drivers/scsi/mvsas/mv_sas.h +++ b/drivers/scsi/mvsas/mv_sas.h @@ -65,7 +65,6 @@ extern struct mvs_tgt_initiator mvs_tgt; extern struct mvs_info *tgt_mvi; extern const struct mvs_dispatch mvs_64xx_dispatch; extern const struct mvs_dispatch mvs_94xx_dispatch; -extern struct kmem_cache *mvs_task_list_cache; #define DEV_IS_EXPANDER(type) \ ((type == SAS_EDGE_EXPANDER_DEVICE) || (type == SAS_FANOUT_EXPANDER_DEVICE)) @@ -440,12 +439,6 @@ struct mvs_task_exec_info { int n_elem; }; -struct mvs_task_list { - struct sas_task *task; - struct list_head list; -}; - - /******************** function prototype *********************/ void mvs_get_sas_addr(void *buf, u32 buflen); void mvs_tag_clear(struct mvs_info *mvi, u32 tag); @@ -462,8 +455,7 @@ void mvs_set_sas_addr(struct mvs_info *mvi, int port_id, u32 off_lo, u32 off_hi, u64 sas_addr); void mvs_scan_start(struct Scsi_Host *shost); int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time); -int mvs_queue_command(struct sas_task *task, const int num, - gfp_t gfp_flags); +int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags); int mvs_abort_task(struct sas_task *task); int mvs_abort_task_set(struct domain_device *dev, u8 *lun); int mvs_clear_aca(struct domain_device *dev, u8 *lun); diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 19ae6cab5e44..329aba0083ab 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -601,8 +601,6 @@ static void pm8001_post_sas_ha_init(struct Scsi_Host *shost, sha->lldd_module = THIS_MODULE; sha->sas_addr = &pm8001_ha->sas_addr[0]; sha->num_phys = chip_info->n_phy; - sha->lldd_max_execute_num = 1; - sha->lldd_queue_size = PM8001_CAN_QUEUE; sha->core.shost = shost; } diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c index 76570e6a547d..b93f289b42b3 100644 --- a/drivers/scsi/pm8001/pm8001_sas.c +++ b/drivers/scsi/pm8001/pm8001_sas.c @@ -350,7 +350,7 @@ static int sas_find_local_port_id(struct domain_device *dev) */ #define DEV_IS_GONE(pm8001_dev) \ ((!pm8001_dev || (pm8001_dev->dev_type == SAS_PHY_UNUSED))) -static int pm8001_task_exec(struct sas_task *task, const int num, +static int pm8001_task_exec(struct sas_task *task, gfp_t gfp_flags, int is_tmf, struct pm8001_tmf_task *tmf) { struct domain_device *dev = task->dev; @@ -360,7 +360,6 @@ static int pm8001_task_exec(struct sas_task *task, const int num, struct sas_task *t = task; struct pm8001_ccb_info *ccb; u32 tag = 0xdeadbeef, rc, n_elem = 0; - u32 n = num; unsigned long flags = 0; if (!dev->port) { @@ -387,18 +386,12 @@ static int pm8001_task_exec(struct sas_task *task, const int num, spin_unlock_irqrestore(&pm8001_ha->lock, flags); t->task_done(t); spin_lock_irqsave(&pm8001_ha->lock, flags); - if (n > 1) - t = list_entry(t->list.next, - struct sas_task, list); continue; } else { struct task_status_struct *ts = &t->task_status; ts->resp = SAS_TASK_UNDELIVERED; ts->stat = SAS_PHY_DOWN; t->task_done(t); - if (n > 1) - t = list_entry(t->list.next, - struct sas_task, list); continue; } } @@ -460,9 +453,7 @@ static int pm8001_task_exec(struct sas_task *task, const int num, t->task_state_flags |= SAS_TASK_AT_INITIATOR; spin_unlock(&t->task_state_lock); pm8001_dev->running_req++; - if (n > 1) - t = list_entry(t->list.next, struct sas_task, list); - } while (--n); + } while (0); rc = 0; goto out_done; @@ -483,14 +474,11 @@ out_done: * pm8001_queue_command - register for upper layer used, all IO commands sent * to HBA are from this interface. * @task: the task to be execute. - * @num: if can_queue great than 1, the task can be queued up. for SMP task, - * we always execute one one time * @gfp_flags: gfp_flags */ -int pm8001_queue_command(struct sas_task *task, const int num, - gfp_t gfp_flags) +int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags) { - return pm8001_task_exec(task, num, gfp_flags, 0, NULL); + return pm8001_task_exec(task, gfp_flags, 0, NULL); } /** @@ -708,7 +696,7 @@ static int pm8001_exec_internal_tmf_task(struct domain_device *dev, task->slow_task->timer.expires = jiffies + PM8001_TASK_TIMEOUT*HZ; add_timer(&task->slow_task->timer); - res = pm8001_task_exec(task, 1, GFP_KERNEL, 1, tmf); + res = pm8001_task_exec(task, GFP_KERNEL, 1, tmf); if (res) { del_timer(&task->slow_task->timer); diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h index f6b2ac59dae4..8dd8b7840f04 100644 --- a/drivers/scsi/pm8001/pm8001_sas.h +++ b/drivers/scsi/pm8001/pm8001_sas.h @@ -623,8 +623,7 @@ int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, void *funcdata); void pm8001_scan_start(struct Scsi_Host *shost); int pm8001_scan_finished(struct Scsi_Host *shost, unsigned long time); -int pm8001_queue_command(struct sas_task *task, const int num, - gfp_t gfp_flags); +int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags); int pm8001_abort_task(struct sas_task *task); int pm8001_abort_task_set(struct domain_device *dev, u8 *lun); int pm8001_clear_aca(struct domain_device *dev, u8 *lun); diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index 1f8b33ec612f..832dcc9f86ec 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -365,12 +365,6 @@ struct asd_sas_phy { struct scsi_core { struct Scsi_Host *shost; - struct mutex task_queue_flush; - spinlock_t task_queue_lock; - struct list_head task_queue; - int task_queue_size; - - struct task_struct *queue_thread; }; struct sas_ha_event { @@ -422,9 +416,6 @@ struct sas_ha_struct { struct asd_sas_port **sas_port; /* array of valid pointers, must be set */ int num_phys; /* must be set, gt 0, static */ - /* The class calls this to send a task for execution. */ - int lldd_max_execute_num; - int lldd_queue_size; int strict_wide_ports; /* both sas_addr and attached_sas_addr must match * their siblings when forming wide ports */ @@ -612,7 +603,6 @@ struct sas_ssp_task { struct sas_task { struct domain_device *dev; - struct list_head list; spinlock_t task_state_lock; unsigned task_state_flags; @@ -665,8 +655,7 @@ struct sas_domain_function_template { int (*lldd_dev_found)(struct domain_device *); void (*lldd_dev_gone)(struct domain_device *); - int (*lldd_execute_task)(struct sas_task *, int num, - gfp_t gfp_flags); + int (*lldd_execute_task)(struct sas_task *, gfp_t gfp_flags); /* Task Management Functions. Must be called from process context. */ int (*lldd_abort_task)(struct sas_task *); @@ -700,7 +689,6 @@ extern void sas_suspend_ha(struct sas_ha_struct *sas_ha); int sas_set_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates); int sas_phy_reset(struct sas_phy *phy, int hard_reset); -int sas_queue_up(struct sas_task *task); extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *); extern int sas_target_alloc(struct scsi_target *); extern int sas_slave_configure(struct scsi_device *); -- cgit v1.2.3