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path: root/drivers/scsi/lpfc
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2018-08-27scsi: lpfc: Correct MDS diag and nvmet configurationJames Smart
A recent change added some MDS processing in the lpfc_drain_txq routine that relies on the fcp_wq being allocated. For nvmet operation the fcp_wq is not allocated because it can only be an nvme-target. When the original MDS support was added LS_MDS_LOOPBACK was defined wrong, (0x16) it should have been 0x10 (decimal value used for hex setting). This incorrect value allowed MDS_LOOPBACK to be set simultaneously with LS_NPIV_FAB_SUPPORTED, causing the driver to crash when it accesses the non-existent fcp_wq. Correct the bad value setting for LS_MDS_LOOPBACK. Fixes: ae9e28f36a6c ("lpfc: Add MDS Diagnostic support.") Cc: <stable@vger.kernel.org> # v4.12+ Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Tested-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-27scsi: lpfc: Default fdmi_on to onJames Smart
Change default behavior for fdmi registration to on. [mkp: patch was mangled] Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-02scsi: lpfc: update driver version to 12.0.0.6James Smart
Update the driver version to 12.0.0.6 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-02scsi: lpfc: Remove lpfc_enable_pbde as module parameterJames Smart
Enablement of the PBDE optimization brought out some incompatible behaviors under error scenarios. Best to disable and remove the PBDE optimization. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-02scsi: lpfc: Correct LCB ACCept payloadJames Smart
After memory allocation for the LCB response frame, the memory wasn't zero initialized, and not all fields are set. Thus garbage shows up in the payload. Fix by zeroing the memory at allocation. Also properly set the Capability field based on duration support. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-02scsi: lpfc: Limit tracking of tgt queue depth in fast pathJames Smart
Performance is affected when target queue depth is tracked. An atomic counter is incremented on the submission path which competes with it being decremented on the completion path. In addition, multiple CPUs can simultaniously be manipulating this counter for the same ndlp. Reduce the overhead by only performing the target increment/decrement when the target queue depth is less than the overall adapter depth, thus is actually meaningful. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-02scsi: lpfc: Fix driver crash when re-registering NVME rports.James Smart
During remote port loss fault testing, the driver crashed with the following trace: general protection fault: 0000 [#1] SMP RIP: ... lpfc_nvme_register_port+0x250/0x480 [lpfc] Call Trace: lpfc_nlp_state_cleanup+0x1b3/0x7a0 [lpfc] lpfc_nlp_set_state+0xa6/0x1d0 [lpfc] lpfc_cmpl_prli_prli_issue+0x213/0x440 lpfc_disc_state_machine+0x7e/0x1e0 [lpfc] lpfc_cmpl_els_prli+0x18a/0x200 [lpfc] lpfc_sli_sp_handle_rspiocb+0x3b5/0x6f0 [lpfc] lpfc_sli_handle_slow_ring_event_s4+0x161/0x240 [lpfc] lpfc_work_done+0x948/0x14c0 [lpfc] lpfc_do_work+0x16f/0x180 [lpfc] kthread+0xc9/0xe0 ret_from_fork+0x55/0x80 After registering a new remoteport, the driver is pulling an ndlp pointer from the lpfc rport associated with the private area of a newly registered remoteport. The private area is uninitialized, so it's garbage. Correct by pulling the the lpfc rport pointer from the entering ndlp point, then ndlp value from at rport. Note the entering ndlp may be replacing by the rport->ndlp due to an address change swap. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-02scsi: lpfc: Fix list corruption on the completion queue.James Smart
Enabling list_debug showed the drivers txcmplq was suffering list corruption. The systems will eventually crash because the iocb free list gets crossed linked with the prings txcmplq. Most systems will run for a while after the corruption, but will eventually crash when a scsi eh reset occurs and the txcmplq is attempted to be flushed. The flush gets stuck in an endless loop. The problem is the abort handler does not hold the sli4 ring lock while validating the IO so the IO could complete while the driver is still preping the abort. The erroneously generated abort, when it completes, has pointers to the original IO that has already completed, and the IO manipulation (for the second time) corrupts the list. Correct by taking the ring lock early in the abort handler so the erroneous abort won't be sent if the io has/is completing. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-02scsi: lpfc: Fix sysfs Speed value on CNA portsJames Smart
CNA ports were showing speed as "unknown" even if the link is up. Add speed decoding for FCOE-based adapters. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-08-02scsi: lpfc: Fix ELS abort on SLI-3 adaptersJames Smart
For ABORT_XRI_CN command, firmware identifies XRI to abort by IOTAG and RPI combination. For ELS aborts, driver specifies IOTAG correctly but RPI is not specified. Fix by setting RPI in WQE. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-30scsi: lpfc: remove null check on nvmebufColin Ian King
The null checks on nvmebuf are redundant as nvmebuf is always obtained from a container_of() and hence can never be null. Remove all the redundant null checks. This also cleans up a static analysis warning. Detected by CoverityScan, CID#1471753 ("Dereference before null check") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: remove ScsiResult macroJohannes Thumshirn
Remove the ScsiResult macro and open code it on all call sites. This will make subsequent refactoring in this area easier. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: Revise copyright for new company languageJames Smart
Change references from "Broadcom Limited" to "Broadcom Inc." in the copyright message. Update copyright duration if not yet updated for 2018. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: update driver version to 12.0.0.5James Smart
Update the driver version to 12.0.0.5 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: devloss timeout race condition caused null pointer referenceJames Smart
A race condition between the context of devloss timeout handler and I/O completion caused devloss timeout handler de-referencing pointer that had been released. Added the check in lpfc_sli_validate_fcp_iocb() on LPFC_IO_ON_TXCMPLQ to capture the race condition of I/O completion and devloss timeout handler attemption for aborting the I/O. Also, added check on lpfc_cmd->rdata pointer before de-referenceing lpfc_cmd->rdata->pnode. Also, added protection in lpfc_sli_abort_iocb() routine on driver performed FCP I/O FLUSHING already under way before proceeding to aborting I/Os. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: Fix NVME Target crash in defer rcv logicJames Smart
Kernel occasionally crashed with the following ops on NVME Target: BUG: unable to handle kernel NULL pointer dereference at 0000000000000058 IP: [<ffffffffa042ee50>] lpfc_nvmet_defer_rcv+0x50/0x70 [lpfc] Callback routine was called for deferred rcv when it should be treated as a normal rcv. Added code in callback routine to detect this condition and log a message, then bail. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: Support duration field in Link Cable Beacon V1 commandJames Smart
Current implementation missed setting the duration field. Correct the code to set the field. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: Make PBDE optimizations configurableJames Smart
The PBDE optimizations aren't supported in all firmware revs. Make optimizations configurable in case there's a side effect on old firmware. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: Fix abort error path for NVMETJames Smart
rmmod of driver hangs As driver instances were being unloaded, the NVME target port was unloaded first. During the unload, the NVME initiator port sent a heartbeat IO. Because of the target port state, that IO was scheduled for an Abort; however, that abort subsequently failed. The failure was not cleaned up properly and lpfc_sli4_xri_exchange_busy_wait silently hung forever. Clean failed abort properly and make lpfc_sli4_xri_exchange_busy_wait not hangs silently while waiting for aborts to complete. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: Fix panic if driver unloaded when port is offlineJames Smart
System crashes when the lpfc module is unloaded after making the port offline The nvme queue pointers were freed during port offline, but were later accessed in pci remove path. Validate the pointers in pci remove path before accessing them. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: Fix driver not setting dpp bits correctly in doorbell wordJames Smart
Driver is incorrectly formatting a register on new hardware, using a format for an older chip. This can result in non-deterministic behavior. Ensure driver is not setting "workqueue index" in the WQ doorbell when making a non-dpp doorbell write. The field must be zero when non-dpp. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10scsi: lpfc: Add Buffer overflow check, when nvme_info larger than PAGE_SIZEJames Smart
Kernel crashes during fill_read_buffer when nvme_info sysfs file read. With multiple NVME targets, approx 40, nvme_info may grow larger than PAGE_SIZE bytes. snprintf(buf + len, PAGE_SIZE - len, ...) logic is flawed as PAGE_SIZE - len can be < 0 and is accepted by snprintf. This results in buffer overflow, and is detected with check from dev_attr_show and fill_read_buffer. Change to use scnprintf to a tmp array, before calling strlcat to ensure no buffer overflow over PAGE_SIZE bytes. Message "6314" created as a new message indicating when there is more nvme info, but is truncated to fit within PAGE_SIZE bytes. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-26scsi: lpfc: use monotonic timestamps for statisticsArnd Bergmann
The get_seconds() function suffers from a possible overflow in 2038 or 2106, as well as jitter due to settimeofday or leap second updates, and is deprecated. As we are interested in elapsed time only, using ktime_get_seconds() to read the CLOCK_MONOTONIC timebase is ideal here. This also lets us remove the hack that tries to deal with get_seconds() going slightly backwards, which cannot happen with montonic timestamps. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-12treewide: kzalloc() -> kcalloc()Kees Cook
The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12treewide: kmalloc() -> kmalloc_array()Kees Cook
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This patch replaces cases of: kmalloc(a * b, gfp) with: kmalloc_array(a * b, gfp) as well as handling cases of: kmalloc(a * b * c, gfp) with: kmalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kmalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kmalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The tools/ directory was manually excluded, since it has its own implementation of kmalloc(). The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(char) * COUNT + COUNT , ...) | kmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kmalloc + kmalloc_array ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kmalloc(C1 * C2 * C3, ...) | kmalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kmalloc(sizeof(THING) * C2, ...) | kmalloc(sizeof(TYPE) * C2, ...) | kmalloc(C1 * C2 * C3, ...) | kmalloc(C1 * C2, ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - (E1) * E2 + E1, E2 , ...) | - kmalloc + kmalloc_array ( - (E1) * (E2) + E1, E2 , ...) | - kmalloc + kmalloc_array ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-28scsi: lpfc: update driver version to 12.0.0.4James Smart
Update the driver version to 12.0.0.4 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-28scsi: lpfc: Fix port initialization failure.James Smart
The driver exits port setup after failing the lpfc_sli4_get_parameters command (messages 0356, 2541, & 1412). The older CNA adapters do not support the MBX command. In the past the code was allowed to fail and continue on with initialization. However a nvme change moved a closing bracket and now makes all failures terminal. Revise the logic so that terminal failure only occurs if the command failed on the newer adapters. Additionally, if parameters are set that require information from the command and the command failed, the parameters are erroneous and port set up should fail even on the older adapters. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-28scsi: lpfc: Fix 16gb hbas failing cq create.James Smart
The lancer G5 chip family fails the CQ create with 16k page size. The hardware incorrectly reports it supports large page sizes when it is actually limited to 4k pages. A prior patch resolved this for the A0 chip revision only. This patch excludes all revisions of the G5 asic from using large page sizes. As knowing the actual chip revision is unnecessary, the now unused definitions are removed Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-28scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfcJames Smart
modprobe -r lpfc produces the following: Call Trace: __blk_mq_run_hw_queue+0xa2/0xb0 __blk_mq_delay_run_hw_queue+0x9d/0xb0 ? blk_mq_hctx_has_pending+0x32/0x80 blk_mq_run_hw_queue+0x50/0xd0 blk_mq_sched_insert_request+0x110/0x1b0 blk_execute_rq_nowait+0x76/0x180 nvme_keep_alive_work+0x8a/0xd0 [nvme_core] process_one_work+0x17f/0x440 worker_thread+0x126/0x3c0 ? manage_workers.isra.24+0x2a0/0x2a0 kthread+0xd1/0xe0 ? insert_kthread_work+0x40/0x40 ret_from_fork_nospec_begin+0x21/0x21 ? insert_kthread_work+0x40/0x40 However, rmmod lpfc would run correctly. When an nvme remoteport is unregistered with the host nvme transport, it needs to set the remoteport->dev_loss_tmo value 0 to indicate an immediate termination of device loss and prevent any further keep alives to that rport. The driver was never setting dev_loss_tmo causing the nvme transport to continue to send the keep alive. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-28scsi: lpfc: correct oversubscription of nvme io requests for an adapterJames Smart
Under large configurations, the driver would start to log message 6065 - NVME out of buffers (exchanges). The driver is using the ndlp cmd_qdepth value when determining the max outstanding ios for an adapter. This value, by default, is set to 65536, which exceeds the maximum exchange counts supported on an adapter. The ndlp cmd_qdepth has no relevance and outstanding io count should be capped at the max exchange count with IO requests beyond that level getting bounced back with an EBUSY status so that they are retried by the block layer. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-28scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx)James Smart
MDS diagnostics fail because of frame count mismatch. Unavailability of SGL is the trigger for this issue. If ELS SGL is not available to process MDS frame, IOCB is put in FCP txq but not attempted to post afterwards. So, driver stops processing incoming frames as it runs out of IOCB. lpfc_drain_txq attempts to submit IOCBS that are queued in ELS txq but MDS frames are posted to FCP WQ. Attempt to submit IOCBs that are present in FCP txq when MDS loopback is running. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: fix spelling mistakes: "mabilbox" and "maibox"Colin Ian King
Trivial fix to spelling mistakes in lpfc_printf_log log message "mabilbox" -> "mailbox" "maibox" -> "mailbox" Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: Comment cleanup regarding Broadcom copyright headerJames Smart
Fix small formatting and wording nits in Broadcom copyright header Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: update driver version to 12.0.0.3James Smart
Update the driver version to 12.0.0.3 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: Enhance log messages when reporting CQE errorsJames Smart
Enhance log messages for CQEs as they were not reporting certain fields. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: Fix up log messages and stats counters in IO submit code pathJames Smart
Fix up log messages and add an fcp error stat counter in the IO submit code path to make diagnosing problems easier Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: Driver NVME load fails when CPU cnt > WQ resource cntJames Smart
If the cpu count is larger than the number of WQ resources available, adapter attachment eventually failes due to a WQ_CREATE failure. Calculate the number of WQs desired (which initializes to cpu count) after accounting for the number of queues the adapter supports and the number allocated to SCSI and the control/ELS path, and scale down if necessary. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: Handle new link fault code returned by adapter firmware.James Smart
The driver encounters a link event ACQE with a fault code it doesn't recognize, it logs an "Invalid" fault type and futher treats the unknown value as a mailbox command failure. First off, there is no "invalid" value, only values that are unknown. Secondly, the fault code doesn't indicate status - the rest of the ACQE contains that status so there is no reason to "fail the commands". Change the "Invalid" to "Unknown". There is no "invalid" code value. Separate fault code parsing and message genaration from any mbx handling status. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: Correct fw download error messageJames Smart
In situations when the firmware image in inappropriate for the chip type, initial validation checks were light, allowing the checks to pass, thus allowing the firmware to be downloaded. Eventually, after the download, the chip rejects the firmware but it is logged as a generic firmware download error. Revise the initial checks to validate the image vs asic type so that the correct message is displayed and the download process is avoided. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: enhance LE data structure copies to hardwareJames Smart
The driver builds the control structures in host memory using definitions that are based on 32-bit words. After building the structure it is then written to the adapter. This patch slightly optimizes LE hosts by copying the structures via 64-bit copies. This is doable as the adapter interface is LE thus there is no byteswapping as the copy is performed. The same optimization would be nice on BE systems, but when byteswapping occurs, it swaps 32-bit words as well, thus trashing the control structure. Given amount of code that is dependent upon the 32-bit word definition, it was decided to not change things for the minor optimization. Thus PPC 64-bit systems sticks with doing 32-bit copies. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: Change IO submit return to EBUSY if remote port is recoveringJames Smart
I/O submission paths in the lpfc nvme path are rejecting the io with an error code that reflects back to the callee as a hard io failure. Many of these conditions are transient and would likely resolve if retried. Correct by returning -EBUSY, which the FC transport triggers off of to return busy status codes to the blk-mq layer. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: update driver version to 12.0.0.2James Smart
Update the driver version to 12.0.0.2 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: Correct missing remoteport registration during link bouncesJames Smart
Remote port disappearance/reappearances would cause a series of RSCN events to be delivered to the driver. During the resulting GID_FT handling, the driver clears the fc4 settings on the remote port, which makes it skip registration. As such, the nvme associations eventually fail and return io errors to the applications. Correct by not clearng the nlp_fc4_types for all nodes in lpfc_issue_gidft. Instead, when the GID_FT response is handled, clear the nlp_fc4_types of FCP and NVME prior to evaluating the fc4_type returned by the GID_FT response. This approach leaves "skipped" nodes with their nlp_fc4_types intacted. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: Fix NULL pointer reference when resetting adapterJames Smart
Points referencing local port structures didn't accommodate cases where the localport may not be registered yet. Add NULL pointer checks to logic. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: Fix nvme remoteport registration race conditionsJames Smart
On tests adding and removing a remote port, calls to nvme_info would eventually show fewer target ports discovered than were present in the san. Additionally, the following error messages were seen: 6031 RemotePort Registration failed err: -116, DID x471301 There is a race condition that exists between the driver and the nvme transport on remote port unregister vs the confirmed deletion. It's possible that the driver may rediscover the remote port and reregister the remote port before a prior unregister delete callback was made (as it rebinded to the prior remoteport structure). However, the driver was coded to expect the callback before seeing the remote port again thus a new registration. The logic results in the driver having an invalid remoteport pointer set. Correct by tracking when waiting for the delete callback. In cases where the ndlp remoteport pointer is updated, it is only cleared when the wait has not been superceded by a prior registration. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: Fix driver not recovering NVME rports during target link faultsJames Smart
During target-side port faults, the driver would not recover all target port logins. This resulted in a loss of nvme device discovery. The driver is coded to wait for all GID_FT requests to complete before restarting discovery. A fault is seen where the outstanding GIT_FT counts are not properly decremented, thus discovery would never start. Another fault was found in the clearing of the gidft_inp counter that would be skipped in this condition. And a third fault found with lpfc_nvme_register_port that would remove a reverence on the ndlp which then allows a node swap on a port address change to prematurely remove the reference and release the ndlp. The following changes are made: - Correct the decrementing of the outstanding GID_FT counters. - In RSCN handling, no longer zero the counter before calling to issue another GID_FT. - No longer remove the reference on the dlp when the ndlp->nrport value is not yet null. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: Fix WQ/CQ creation for older asic's.James Smart
The patch to enlarge WQ/CQ creation keys off of an adapter response that indicates support for the larger values. Older adapters return an incorrect response and are limited in size. Thus the adapters fail the WQ creation steps. Augment the WQ sizing checks with a check on the older adapter types and limit them to the restricted sizes. Fixes: c176ffa0841c ("scsi: lpfc: Increase CQ and WQ sizes for SCSI") Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: Fix NULL pointer access in lpfc_nvme_info_showJames Smart
After making remoteport unregister requests, the ndlp nrport pointer was stale. Track when waiting for waiting for unregister completion callback and adjust nldp pointer assignment. Add a few safety checks for NULL pointer values. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: Fix lingering lpfc_wq resource after driver unloadJames Smart
After driver unloads, lpfc_wq remains active. The destroy_workqueue calls were not being made in driver unload. Additionally, SLI3 is allocating lpfc_wq resources, but never uses it. Make the destroy_workqueue calls on driver unload. Modify the SLI3 code path no longer allocate lpfc_wq resources. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-04-18scsi: lpfc: Fix Abort request WQ selectionJames Smart
When running loads that generated aborts, io errors where seen. Turns out the abort requests where not placed on the proper WQ resulting in the errors. Closer inspection inspection of this error also showed improper spinlock api use. Correct the WQ selection policy for the abort requests. Correct spin_lock/spin_lock_irq/spin_lock_irqsave usage. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-01 20:03:47 +0000