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2020-03-10scsi: ipr: Fix softlockup when rescanning devices in petitbootWen Xiong
When trying to rescan disks in petitboot shell, we hit the following softlockup stacktrace: Kernel panic - not syncing: System is deadlocked on memory [ 241.223394] CPU: 32 PID: 693 Comm: sh Not tainted 5.4.16-openpower1 #1 [ 241.223406] Call Trace: [ 241.223415] [c0000003f07c3180] [c000000000493fc4] dump_stack+0xa4/0xd8 (unreliable) [ 241.223432] [c0000003f07c31c0] [c00000000007d4ac] panic+0x148/0x3cc [ 241.223446] [c0000003f07c3260] [c000000000114b10] out_of_memory+0x468/0x4c4 [ 241.223461] [c0000003f07c3300] [c0000000001472b0] __alloc_pages_slowpath+0x594/0x6d8 [ 241.223476] [c0000003f07c3420] [c00000000014757c] __alloc_pages_nodemask+0x188/0x1a4 [ 241.223492] [c0000003f07c34a0] [c000000000153e10] alloc_pages_current+0xcc/0xd8 [ 241.223508] [c0000003f07c34e0] [c0000000001577ac] alloc_slab_page+0x30/0x98 [ 241.223524] [c0000003f07c3520] [c0000000001597fc] new_slab+0x138/0x40c [ 241.223538] [c0000003f07c35f0] [c00000000015b204] ___slab_alloc+0x1e4/0x404 [ 241.223552] [c0000003f07c36c0] [c00000000015b450] __slab_alloc+0x2c/0x48 [ 241.223566] [c0000003f07c36f0] [c00000000015b754] kmem_cache_alloc_node+0x9c/0x1b4 [ 241.223582] [c0000003f07c3760] [c000000000218c48] blk_alloc_queue_node+0x34/0x270 [ 241.223599] [c0000003f07c37b0] [c000000000226574] blk_mq_init_queue+0x2c/0x78 [ 241.223615] [c0000003f07c37e0] [c0000000002ff710] scsi_mq_alloc_queue+0x28/0x70 [ 241.223631] [c0000003f07c3810] [c0000000003005b8] scsi_alloc_sdev+0x184/0x264 [ 241.223647] [c0000003f07c38a0] [c000000000300ba0] scsi_probe_and_add_lun+0x288/0xa3c [ 241.223663] [c0000003f07c3a00] [c000000000301768] __scsi_scan_target+0xcc/0x478 [ 241.223679] [c0000003f07c3b20] [c000000000301c64] scsi_scan_channel.part.9+0x74/0x7c [ 241.223696] [c0000003f07c3b70] [c000000000301df4] scsi_scan_host_selected+0xe0/0x158 [ 241.223712] [c0000003f07c3bd0] [c000000000303f04] store_scan+0x104/0x114 [ 241.223727] [c0000003f07c3cb0] [c0000000002d5ac4] dev_attr_store+0x30/0x4c [ 241.223741] [c0000003f07c3cd0] [c0000000001dbc34] sysfs_kf_write+0x64/0x78 [ 241.223756] [c0000003f07c3cf0] [c0000000001da858] kernfs_fop_write+0x170/0x1b8 [ 241.223773] [c0000003f07c3d40] [c0000000001621fc] __vfs_write+0x34/0x60 [ 241.223787] [c0000003f07c3d60] [c000000000163c2c] vfs_write+0xa8/0xcc [ 241.223802] [c0000003f07c3db0] [c000000000163df4] ksys_write+0x70/0xbc [ 241.223816] [c0000003f07c3e20] [c00000000000b40c] system_call+0x5c/0x68 As a part of the scan process Linux will allocate and configure a scsi_device for each target to be scanned. If the device is not present, then the scsi_device is torn down. As a part of scsi_device teardown a workqueue item will be scheduled and the lockups we see are because there are 250k workqueue items to be processed. Accoding to the specification of SIS-64 sas controller, max_channel should be decreased on SIS-64 adapters to 4. The patch fixes softlockup issue. Thanks for Oliver Halloran's help with debugging and explanation! Link: https://lore.kernel.org/r/1583510248-23672-1-git-send-email-wenxiong@linux.vnet.ibm.com Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-10scsi: ufs: Fix possible unclocked access to auto hibern8 timer registerCan Guo
Before access auto hibner8 timer register, make sure power and clock are properly configured to avoid unclocked register access. Link: https://lore.kernel.org/r/1583398391-14273-1-git-send-email-cang@codeaurora.org Fixes: ba7af5ec5126 ("scsi: ufs: export ufshcd_auto_hibern8_update for vendor usage") Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Can Guo <cang@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: compat_ioctl: cdrom: Replace .ioctl with .compat_ioctl in four ↵Adam Williamson
appropriate places Arnd Bergmann inadvertently typoed these in d320a9551e394 and 64cbfa96551a; they seem to be the cause of https://bugzilla.redhat.com/show_bug.cgi?id=1801353 , invalid SCSI commands when udev tries to query a DVD drive. [arnd] Found another instance of the same bug, also introduced in my compat_ioctl series. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1801353 Link: https://lore.kernel.org/r/20200219165139.3467320-1-arnd@arndb.de Fixes: c103d6ee69f9 ("compat_ioctl: ide: floppy: add handler") Fixes: 64cbfa96551a ("compat_ioctl: move cdrom commands into cdrom.c") Fixes: d320a9551e39 ("compat_ioctl: scsi: move ioctl handling into drivers") Bisected-by: Chris Murphy <bugzilla@colorremedies.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Adam Williamson <awilliam@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: sd_sbc: Fix sd_zbc_report_zones()Damien Le Moal
The block layer generic blk_revalidate_disk_zones() checks the validity of zone descriptors reported by a disk using the blk_revalidate_zone_cb() callback function executed for each zone descriptor. If a ZBC disk reports invalid zone descriptors, blk_revalidate_disk_zones() returns an error and sd_zbc_read_zones() changes the disk capacity to 0, which in turn results in the gendisk structure capacity to be set to 0. This all works well for the first revalidate pass on a disk and the block layer detects the capactiy change. On the second revalidate pass, blk_revalidate_disk_zones() is called again and sd_zbc_report_zones() executed to check the zones a second time. However, for this second pass, the gendisk capacity is now 0, which results in sd_zbc_report_zones() to do nothing and to report success and no zones. blk_revalidate_disk_zones() in turn returns success and sets the disk queue chunk_sectors limit with zero as no zones were checked, causing a oops to trigger on the BUG_ON(!is_power_of_2(chunk_sectors)) in blk_queue_chunk_sectors(). Fix this by using the sdkp capacity field rather than the gendisk capacity for the report zones loop in sd_zbc_report_zones(). Also add a check to return immediately an error if the sdkp capacity is 0. With this fix, invalid/buggy ZBC disk scan does not trigger a oops and are exposed with a 0 capacity. This change also preserve the chance for the disk to be correctly revalidated on the second revalidate pass as the scsi disk structure capacity field is always set to the disk reported value when sd_zbc_report_zones() is called. Link: https://lore.kernel.org/r/20200219063800.880834-1-damien.lemoal@wdc.com Fixes: d41003513e61 ("block: rework zone reporting") Cc: Cc: <stable@vger.kernel.org> # v5.5 Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-21scsi: libfc: free response frame from GPN_IDIgor Druzhinin
fc_disc_gpn_id_resp() should be the last function using it so free it here to avoid memory leak. Link: https://lore.kernel.org/r/1579013000-14570-2-git-send-email-igor.druzhinin@citrix.com Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-12scsi: megaraid_sas: silence a warningTomas Henzl
Add a flag to DMA memory allocation to silence a warning. This driver allocates DMA memory for IO frames. This allocation may exceed MAX_ORDER pages for few megaraid_sas controllers (controllers with very high queue depth). Consequently, the driver has logic to keep reducing the controller queue depth until the DMA memory allocation succeeds. On impacted megaraid_sas controllers there would be multiple DMA allocation failures until driver settled on an allocation that fit. These failed DMA allocation requests caused stack traces in system logs. These were not harmful and this patch silences those warnings/stack traces. [mkp: clarified commit desc] Link: https://lore.kernel.org/r/20200204152413.7107-1-thenzl@redhat.com Signed-off-by: Tomas Henzl <thenzl@redhat.com> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-08Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull misc SCSI fixes from James Bottomley: "Five small patches, all in drivers or doc, which missed the initial pull request. The qla2xxx and megaraid_sas are actual fixes and the rest are spelling and doc changes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: fix spelling mistake "initilized" -> "initialized" scsi: pm80xx: fix spelling mistake "to" -> "too" scsi: MAINTAINERS: ufs: remove pedrom.sousa@synopsys.com scsi: megaraid_sas: fixup MSIx interrupt setup during resume scsi: qla2xxx: Fix unbound NVME response length
2020-02-04proc: convert everything to "struct proc_ops"Alexey Dobriyan
The most notable change is DEFINE_SHOW_ATTRIBUTE macro split in seq_file.h. Conversion rule is: llseek => proc_lseek unlocked_ioctl => proc_ioctl xxx => proc_xxx delete ".owner = THIS_MODULE" line [akpm@linux-foundation.org: fix drivers/isdn/capi/kcapi_proc.c] [sfr@canb.auug.org.au: fix kernel/sched/psi.c] Link: http://lkml.kernel.org/r/20200122180545.36222f50@canb.auug.org.au Link: http://lkml.kernel.org/r/20191225172546.GB13378@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-30scsi: ufs: fix spelling mistake "initilized" -> "initialized"Colin Ian King
There is a spelling mistake in a pr_err message. Fix it. Link: https://lore.kernel.org/r/20200122091250.2777221-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-30scsi: pm80xx: fix spelling mistake "to" -> "too"Colin Ian King
There is a spelling mistake in a pm8001_printk message. Fix it. Link: https://lore.kernel.org/r/20200123005706.2834281-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-30scsi: megaraid_sas: fixup MSIx interrupt setup during resumeHannes Reinecke
Streamline resume workflow by using the same functions for enabling MSIx interrupts as used during initialisation. Without it the driver might crash during resume with: WARNING: CPU: 2 PID: 4306 at ../drivers/pci/msi.c:1303 pci_irq_get_affinity+0x3b/0x90 Link: https://lore.kernel.org/r/20200113132609.69536-1-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-30scsi: qla2xxx: Fix unbound NVME response lengthArun Easi
On certain cases when response length is less than 32, NVME response data is supplied inline in IOCB. This is indicated by some combination of state flags. There was an instance when a high, and incorrect, response length was indicated causing driver to overrun buffers. Fix this by checking and limiting the response payload length. Fixes: 7401bc18d1ee3 ("scsi: qla2xxx: Add FC-NVMe command handling") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200124045014.23554-1-hmadhani@marvell.com Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-29Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This series is slightly unusual because it includes Arnd's compat ioctl tree here: 1c46a2cf2dbd Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue Excluding Arnd's changes, this is mostly an update of the usual drivers: megaraid_sas, mpt3sas, qla2xxx, ufs, lpfc, hisi_sas. There are a couple of core and base updates around error propagation and atomicity in the attribute container base we use for the SCSI transport classes. The rest is minor changes and updates" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (149 commits) scsi: hisi_sas: Rename hisi_sas_cq.pci_irq_mask scsi: hisi_sas: Add prints for v3 hw interrupt converge and automatic affinity scsi: hisi_sas: Modify the file permissions of trigger_dump to write only scsi: hisi_sas: Replace magic number when handle channel interrupt scsi: hisi_sas: replace spin_lock_irqsave/spin_unlock_restore with spin_lock/spin_unlock scsi: hisi_sas: use threaded irq to process CQ interrupts scsi: ufs: Use UFS device indicated maximum LU number scsi: ufs: Add max_lu_supported in struct ufs_dev_info scsi: ufs: Delete is_init_prefetch from struct ufs_hba scsi: ufs: Inline two functions into their callers scsi: ufs: Move ufshcd_get_max_pwr_mode() to ufshcd_device_params_init() scsi: ufs: Split ufshcd_probe_hba() based on its called flow scsi: ufs: Delete struct ufs_dev_desc scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails scsi: ufs-mediatek: enable low-power mode for hibern8 state scsi: ufs: export some functions for vendor usage scsi: ufs-mediatek: add dbg_register_dump implementation scsi: qla2xxx: Fix a NULL pointer dereference in an error path scsi: qla1280: Make checking for 64bit support consistent scsi: megaraid_sas: Update driver version to 07.713.01.00-rc1 ...
2020-01-27Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremapLinus Torvalds
Pull ioremap updates from Christoph Hellwig: "Remove the ioremap_nocache API (plus wrappers) that are always identical to ioremap" * tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap: remove ioremap_nocache and devm_ioremap_nocache MIPS: define ioremap_nocache to ioremap
2020-01-27Merge tag 'for-5.6/block-2020-01-27' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull core block updates from Jens Axboe: "This may be the most quiet round we've had in years. I'm not complaining. Really not a lot to detail here, outside of spelling and documentation improvements/fixes, we have: - Allow t10-pi to be modular (Herbert) - Remove dead code in bfq (Alex) - Mark zone management requests with REQ_SYNC (Chaitanya) - BFQ division improvement (Wen) - Small series improving plugging (Pavel)" * tag 'for-5.6/block-2020-01-27' of git://git.kernel.dk/linux-block: partitions/ldm: fix spelling mistake "to" -> "too" block, bfq: improve arithmetic division in bfq_delta() block/bfq: remove unused bfq_class_rt which never used block: mark zone-mgmt bios with REQ_SYNC blk-mq: Document functions for sending request block: Allow t10-pi to be modular blk-mq: optimise blk_mq_flush_plug_list() list: introduce list_for_each_continue() blk-mq: optimise rq sort function
2020-01-26Merge tag 'block-5.5-2020-01-26' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fix from Jens Axboe: "Unfortunately this weekend we had a few last minute reports, one was for block. The partition disable for zoned devices was overly restrictive, it can work (and be supported) just fine for host-aware variants. Here's a fix ensuring that's the case so we don't break existing users of that" * tag 'block-5.5-2020-01-26' of git://git.kernel.dk/linux-block: block: allow partitions on host aware zone devices
2020-01-26Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Two last minute fixes, both in drivers. The fnic one is a highly unlikely condition, but the RDMA one is a recently introduced regression that causes a kernel warning to trigger in every RDMA logon, which would be unsightly if it got into the final release" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: RDMA/isert: Fix a recently introduced regression related to logout scsi: fnic: do not queue commands during fwreset
2020-01-26block: allow partitions on host aware zone devicesChristoph Hellwig
Host-aware SMR drives can be used with the commands to explicitly manage zone state, but they can also be used as normal disks. In the former case it makes perfect sense to allow partitions on them, in the latter it does not, just like for host managed devices. Add a check to add_partition to allow partitions on host aware devices, but give up any zone management capabilities in that case, which also catches the previously missed case of adding a partition vs just scanning it. Because sd can rescan the attribute at runtime it needs to check if a disk has partitions, for which a new helper is added to genhd.h. Fixes: 5eac3eb30c9a ("block: Remove partition support for zoned block devices") Reported-by: Borislav Petkov <bp@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-01-20scsi: fnic: do not queue commands during fwresetHannes Reinecke
When a link is going down the driver will be calling fnic_cleanup_io(), which will traverse all commands and calling 'done' for each found command. While the traversal is handled under the host_lock, calling 'done' happens after the host_lock is being dropped. As fnic_queuecommand_lck() is being called with the host_lock held, it might well be that it will pick the command being selected for abortion from the above routine and enqueue it for sending, but then 'done' is being called on that very command from the above routine. Which of course confuses the hell out of the scsi midlayer. So fix this by not queueing commands when fnic_cleanup_io is active. Link: https://lore.kernel.org/r/20200116102053.62755-1-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: hisi_sas: Rename hisi_sas_cq.pci_irq_maskJohn Garry
In future we will want to use hisi_sas_cq.pci_irq_mask for non-pci interrupt masks, so rename to be more general. Link: https://lore.kernel.org/r/1579522957-4393-7-git-send-email-john.garry@huawei.com Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: hisi_sas: Add prints for v3 hw interrupt converge and automatic affinityLuo Jiaxing
Add prints to inform the user of enabled features. Link: https://lore.kernel.org/r/1579522957-4393-6-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: hisi_sas: Modify the file permissions of trigger_dump to write onlyLuo Jiaxing
The trigger_dump file is only used to manually trigger the dump, and did not provide a read callback function for it, so its file permission setting to 600 is wrong,and should be changed to 200. Link: https://lore.kernel.org/r/1579522957-4393-5-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: hisi_sas: Replace magic number when handle channel interruptLuo Jiaxing
We use magic number as offset and mask when handle channel interrupt, so use macro to replace it. Link: https://lore.kernel.org/r/1579522957-4393-4-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: hisi_sas: replace spin_lock_irqsave/spin_unlock_restore with ↵Xiang Chen
spin_lock/spin_unlock After changing tasklet to workqueue or threaded irq, some critical resources are only used on threads (not in interrupt or bottom half of interrupt), so replace spin_lock_irqsave/spin_unlock_restore with spin_lock/spin_unlock to protect those critical resources. Link: https://lore.kernel.org/r/1579522957-4393-3-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: hisi_sas: use threaded irq to process CQ interruptsXiang Chen
Currently IRQ_EFFECTIVE_AFF_MASK is enabled for ARM_GIC and ARM_GIC3, so it only allows a single target CPU in the affinity mask to process interrupts and also interrupt thread, and the performance of using threaded irq is almost the same as tasklet. But if the config is not enabled, the interrupt thread will be allowed all the CPUs in the affinity mask. At that situation it improves the performance (about 20%). Note: IRQ_EFFECTIVE_AFF_MASK is configured differently for different architecture chip, and it seems to be better to make it be configured easily. Link: https://lore.kernel.org/r/1579522957-4393-2-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: Use UFS device indicated maximum LU numberBean Huo
According to Jedec standard UFS 3.0 and UFS 2.1 Spec, Maximum number of logical units supported by the UFS device is indicated by parameter bMaxNumberLU in Geometry Descriptor. This patch is to delete current hard code macro definition of UFS_UPIU_MAX_GENERAL_LUN, and switch to use device indicated number instead. Link: https://lore.kernel.org/r/20200120130820.1737-9-huobean@gmail.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: Add max_lu_supported in struct ufs_dev_infoBean Huo
Add one new parameter max_lu_supported in struct ufs_dev_info, which will be used to express exactly how many general LUs being supported by UFS device, and initialize it during booting stage. This patch also adds a new function ufshcd_device_geo_params_init() for initialization of UFS device geometry descriptor related parameters. Link: https://lore.kernel.org/r/20200120130820.1737-8-huobean@gmail.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: Delete is_init_prefetch from struct ufs_hbaBean Huo
Without variable is_init_prefetch, the current logic can guarantee ufshcd_init_icc_levels() will execute only once, delete it now. Link: https://lore.kernel.org/r/20200120130820.1737-7-huobean@gmail.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: Inline two functions into their callersBean Huo
Delete ufshcd_read_power_desc() and ufshcd_read_device_desc(), directly inline ufshcd_read_desc() into its callers. Link: https://lore.kernel.org/r/20200120130820.1737-6-huobean@gmail.com Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: Move ufshcd_get_max_pwr_mode() to ufshcd_device_params_init()Bean Huo
ufshcd_get_max_pwr_mode() only need to be called once while booting, take it out from ufshcd_probe_hba() and inline into ufshcd_device_params_init(). Link: https://lore.kernel.org/r/20200120130820.1737-5-huobean@gmail.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: Split ufshcd_probe_hba() based on its called flowBean Huo
This patch has two major non-functionality changes: 1. Take scanning host if-statement out from ufshcd_probe_hba(), and move into a new added function ufshcd_add_lus(). In this new function ufshcd_add_lus(), the main functionalitis include: ICC initialization, add well-known LUs, devfreq initialization, UFS bsg probe and scsi host scan. The reason for this change is that these functionalities only being called during booting stage flow ufshcd_init()->ufshcd_async_scan(). In the processes of error handling and power management ufshcd_suspend(), ufshcd_resume(), ufshcd_probe_hba() being called, but these functionalitis above metioned are not hit. 2. Move context of initialization of parameters associated with the UFS device to a new added function ufshcd_device_params_init(). The reason of this change is that all of these parameters are used by driver, but only need to be initialized once when booting. Combine them into an integral function, make them easier maintain. Link: https://lore.kernel.org/r/20200120130820.1737-4-huobean@gmail.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: Delete struct ufs_dev_descBean Huo
In consideration of UFS host driver uses parameters of struct ufs_dev_desc, move its parameters to struct ufs_dev_info, delete struct ufs_dev_desc. Link: https://lore.kernel.org/r/20200120130820.1737-3-huobean@gmail.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: Fix ufshcd_probe_hba() reture value in case ↵Bean Huo
ufshcd_scsi_add_wlus() fails A non-zero error value likely being returned by ufshcd_scsi_add_wlus() in case of failure of adding the WLs, but ufshcd_probe_hba() doesn't use this value, and doesn't report this failure to upper caller. This patch is to fix this issue. Fixes: 2a8fa600445c ("ufs: manually add well known logical units") Link: https://lore.kernel.org/r/20200120130820.1737-2-huobean@gmail.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs-mediatek: enable low-power mode for hibern8 stateStanley Chu
In MediaTek Chipsets, UniPro link and ufshci can enter proprietary low-power mode while link is in hibern8 state. Link: https://lore.kernel.org/r/20200117035108.19699-4-stanley.chu@mediatek.com Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs: export some functions for vendor usageStanley Chu
Export below functions for vendor usage: int ufshcd_hba_enable(struct ufs_hba *hba); int ufshcd_make_hba_operational(struct ufs_hba *hba); int ufshcd_uic_hibern8_exit(struct ufs_hba *hba); Link: https://lore.kernel.org/r/20200117035108.19699-3-stanley.chu@mediatek.com Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: ufs-mediatek: add dbg_register_dump implementationStanley Chu
Add dbg_register_dump variant vendor implementation in MediaTek UFS driver. Link: https://lore.kernel.org/r/20200117035108.19699-2-stanley.chu@mediatek.com Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: qla2xxx: Fix a NULL pointer dereference in an error pathBart Van Assche
This patch fixes the following Coverity complaint: FORWARD_NULL qla_init.c: 5275 in qla2x00_configure_local_loop() 5269 5270 if (fcport->scan_state == QLA_FCPORT_FOUND) 5271 qla24xx_fcport_handle_login(vha, fcport); 5272 } 5273 5274 cleanup_allocation: >>> CID 353340: (FORWARD_NULL) >>> Passing null pointer "new_fcport" to "qla2x00_free_fcport", which dereferences it. 5275 qla2x00_free_fcport(new_fcport); 5276 5277 if (rval != QLA_SUCCESS) { 5278 ql_dbg(ql_dbg_disc, vha, 0x2098, 5279 "Configure local loop error exit: rval=%x.\n", rval); 5280 } qla_init.c: 5275 in qla2x00_configure_local_loop() 5269 5270 if (fcport->scan_state == QLA_FCPORT_FOUND) 5271 qla24xx_fcport_handle_login(vha, fcport); 5272 } 5273 5274 cleanup_allocation: >>> CID 353340: (FORWARD_NULL) >>> Passing null pointer "new_fcport" to "qla2x00_free_fcport", which dereferences it. 5275 qla2x00_free_fcport(new_fcport); 5276 5277 if (rval != QLA_SUCCESS) { 5278 ql_dbg(ql_dbg_disc, vha, 0x2098, 5279 "Configure local loop error exit: rval=%x.\n", rval); 5280 } Fixes: 3dae220595ba ("scsi: qla2xxx: Use common routine to free fcport struct") Cc: Himanshu Madhani <hmadhani@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Daniel Wagner <dwagner@suse.de> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Link: https://lore.kernel.org/r/20200118042056.32232-1-bvanassche@acm.org Signed-off-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20scsi: qla1280: Make checking for 64bit support consistentThomas Bogendoerfer
Use #ifdef QLA_64BIT_PTR to check if 64bit support is enabled. This fixes ("scsi: qla1280: Fix dma firmware download, if dma address is 64bit"). Link: https://lore.kernel.org/r/20200117115628.13219-1-tbogendoerfer@suse.de Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-18Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three fixes in drivers with no impact to core code. The mptfusion fix is enormous because the driver API had to be rethreaded to pass down the necessary iocp pointer, but once that's done a significant chunk of code is deleted. The other two patches are small" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: mptfusion: Fix double fetch bug in ioctl scsi: storvsc: Correctly set number of hardware queues for IDE disk scsi: fnic: fix invalid stack access
2020-01-15scsi: megaraid_sas: Update driver version to 07.713.01.00-rc1Anand Lodnoor
Link: https://lore.kernel.org/r/1579000882-20246-12-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Use Block layer API to check SCSI device in-flight IO ↵Anand Lodnoor
requests Remove usage of device_busy counter from driver. Instead of device_busy counter now driver uses 'nr_active' counter of request_queue to get the number of inflight request for a LUN. Link: https://lore.kernel.org/r/1579000882-20246-11-git-send-email-anand.lodnoor@broadcom.com Link : https://patchwork.kernel.org/patch/11249297/ Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Limit the number of retries for the IOCTLs causing ↵Anand Lodnoor
firmware fault IOCTLs causing firmware fault may end up in failed controller resets and finally killing the adapter. This patch fixes this problem as stated below: In OCR sequence, driver will attempt refiring pended IOCTLs upto two times. If first two attempts fail, then in third attempt driver will return pended IOCTLs with EBUSY status to application. These changes are done to ensure if any of pended IOCTLs is causing firmware fault and resulting into OCR failure, then in last attempt of OCR driver will refrain firing it to firmware and saving adapter from being killed due to faulty IOCTL. Link: https://lore.kernel.org/r/1579000882-20246-10-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Do not initiate OCR if controller is not in ready stateAnand Lodnoor
Driver initiates OCR if a DCMD command times out. But there is a deadlock if the driver attempts to invoke another OCR before the mutex lock (reset_mutex) is released from the previous session of OCR. This patch takes care of the above scenario using new flag MEGASAS_FUSION_OCR_NOT_POSSIBLE to indicate if OCR is possible. Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1579000882-20246-9-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Re-Define enum DCMD_RETURN_STATUSAnand Lodnoor
DCMD_INIT is introduced to indicate the initial DCMD status, which was earlier set to MFI status. DCMD_BUSY indicates the resource is busy or locked. Link: https://lore.kernel.org/r/1579000882-20246-8-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Do not set HBA Operational if FW is not in operational stateAnand Lodnoor
After issuing a adapter reset, driver blindly used to set adprecovery flag to OPERATIONAL state. Add a check to see if the FW is operational before setting the flag and marking reset adapter successful. Link: https://lore.kernel.org/r/1579000882-20246-7-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Do not kill HBA if JBOD Seqence map or RAID map is disabledAnand Lodnoor
At the time of firmware initialization, if JBOD map or RAID map is not available, driver can function without these features in a limited functionality mode. Link: https://lore.kernel.org/r/1579000882-20246-6-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Do not kill host bus adapter, if adapter is already deadAnand Lodnoor
Link: https://lore.kernel.org/r/1579000882-20246-5-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Update optimal queue depth for SAS and NVMe devicesAnand Lodnoor
Ideally, optimal queue depth will be provided by firmware. The driver defines will be used as a fallback mechanism in case the FW assisted QD is not supported. The driver defined values provide optimal queue depth for most of the drives and the workloads, as is learned from the firmware assisted QD results. Link: https://lore.kernel.org/r/1579000882-20246-4-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Set no_write_same only for Virtual DiskAnand Lodnoor
Disable WRITE_SAME (no_write_same) for Virtual Disks only. For System PDs and EPDs (Enhanced PDs), WRITE_SAME need not be disabled by default. Link: https://lore.kernel.org/r/1579000882-20246-3-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Reset adapter if FW is not in READY state after device ↵Anand Lodnoor
resume After device resume we expect the firmware to be in READY state. Transition to READY might fail due to unhandled exceptions, such as an internal error or a hardware failure. Retry initiating chip reset and wait for the controller to come to ready state. Link: https://lore.kernel.org/r/1579000882-20246-2-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 11:24:12 +0000