Commit Graph

866 Commits

Author SHA1 Message Date
Linus Torvalds
aa5ad10f6c SCSI misc on 20221213
Updates to the usual drivers (target, ufs, smartpqi, lpfc).  There are
 some core changes, mostly around reworking some of our user context
 assumptions in device put and moving some code around.  The remaining
 updates are bug fixes and minor changes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (target, ufs, smartpqi, lpfc).

  There are some core changes, mostly around reworking some of our user
  context assumptions in device put and moving some code around.

  The remaining updates are bug fixes and minor changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (138 commits)
  scsi: sg: Fix get_user() in call sg_scsi_ioctl()
  scsi: megaraid_sas: Fix some spelling mistakes in comment
  scsi: core: Use SCSI_SCAN_INITIAL in do_scsi_scan_host()
  scsi: core: Use SCSI_SCAN_RESCAN in __scsi_add_device()
  scsi: ufs: ufs-mediatek: Remove unnecessary return code
  scsi: ufs: core: Fix the polling implementation
  scsi: libsas: Do not export sas_ata_wait_after_reset()
  scsi: hisi_sas: Fix SATA devices missing issue during I_T nexus reset
  scsi: libsas: Add smp_ata_check_ready_type()
  scsi: Revert "scsi: hisi_sas: Don't send bcast events from HW during nexus HA reset"
  scsi: Revert "scsi: hisi_sas: Drain bcast events in hisi_sas_rescan_topology()"
  scsi: ufs: ufs-mediatek: Modify the return value
  scsi: ufs: ufs-mediatek: Remove unneeded code
  scsi: device_handler: alua: Call scsi_device_put() from non-atomic context
  scsi: device_handler: alua: Revert "Move a scsi_device_put() call out of alua_check_vpd()"
  scsi: snic: Fix possible UAF in snic_tgt_create()
  scsi: qla2xxx: Initialize vha->unknown_atio_[list, work] for NPIV hosts
  scsi: qla2xxx: Remove duplicate of vha->iocb_work initialization
  scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails
  scsi: sd: Use 16-byte SYNCHRONIZE CACHE on ZBC devices
  ...
2022-12-14 08:58:51 -08:00
Yu Zhe
76dc609556 scsi: megaraid_sas: Fix some spelling mistakes in comment
Fix typos in comment.

Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Link: https://lore.kernel.org/r/20221125020703.22216-1-yuzhe@nfschina.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-11-26 02:58:57 +00:00
Bart Van Assche
dee7121e8c scsi: core: Change the return type of .eh_timed_out()
Commit 6600593cbd ("block: rename BLK_EH_NOT_HANDLED to BLK_EH_DONE")
made it impossible for .eh_timed_out() implementations to call
scsi_done() without causing a crash.

Restore support for SCSI timeout handlers to call scsi_done() as follows:

 * Change all .eh_timed_out() handlers as follows:

   - Change the return type into enum scsi_timeout_action.
   - Change BLK_EH_RESET_TIMER into SCSI_EH_RESET_TIMER.
   - Change BLK_EH_DONE into SCSI_EH_NOT_HANDLED.

 * In scsi_timeout(), convert the SCSI_EH_* values into BLK_EH_* values.

Reviewed-by: Lee Duncan <lduncan@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mike Christie <michael.christie@oracle.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20221018202958.1902564-3-bvanassche@acm.org
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-22 03:25:59 +00:00
Martin K. Petersen
47eee861fa Merge branch '6.1/scsi-queue' into 6.1/scsi-fixes
Include the patches that weren't included in the 6.1 pull request.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-21 01:10:34 +00:00
Linus Torvalds
62e6e5940c SCSI misc on 20221007
Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr,
 mpt3sas, target); the biggest change (from my biased viewpoint) being
 that the mpi3mr now attached to the SAS transport class, making it the
 first fusion type device to do so.  Beyond the usual bug fixing and
 security class reworks, there aren't a huge number of core changes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr,
  mpt3sas, target). The biggest change (from my biased viewpoint) being
  that the mpi3mr now attached to the SAS transport class, making it the
  first fusion type device to do so.

  Beyond the usual bug fixing and security class reworks, there aren't a
  huge number of core changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (141 commits)
  scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()
  scsi: mpi3mr: Remove unnecessary cast
  scsi: stex: Properly zero out the passthrough command structure
  scsi: mpi3mr: Update driver version to 8.2.0.3.0
  scsi: mpi3mr: Fix scheduling while atomic type bug
  scsi: mpi3mr: Scan the devices during resume time
  scsi: mpi3mr: Free enclosure objects during driver unload
  scsi: mpi3mr: Handle 0xF003 Fault Code
  scsi: mpi3mr: Graceful handling of surprise removal of PCIe HBA
  scsi: mpi3mr: Schedule IRQ kthreads only on non-RT kernels
  scsi: mpi3mr: Support new power management framework
  scsi: mpi3mr: Update mpi3 header files
  scsi: mpt3sas: Revert "scsi: mpt3sas: Fix ioc->base_readl() use"
  scsi: mpt3sas: Revert "scsi: mpt3sas: Fix writel() use"
  scsi: wd33c93: Remove dead code related to the long-gone config WD33C93_PIO
  scsi: core: Add I/O timeout count for SCSI device
  scsi: qedf: Populate sysfs attributes for vport
  scsi: pm8001: Replace one-element array with flexible-array member
  scsi: 3w-xxxx: Replace one-element array with flexible-array member
  scsi: hptiop: Replace one-element array with flexible-array member in struct hpt_iop_request_ioctl_command()
  ...
2022-10-07 12:33:18 -07:00
Linus Torvalds
513389809e for-6.1/block-2022-10-03
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Merge tag 'for-6.1/block-2022-10-03' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - NVMe pull requests via Christoph:
      - handle number of queue changes in the TCP and RDMA drivers
        (Daniel Wagner)
      - allow changing the number of queues in nvmet (Daniel Wagner)
      - also consider host_iface when checking ip options (Daniel
        Wagner)
      - don't map pages which can't come from HIGHMEM (Fabio M. De
        Francesco)
      - avoid unnecessary flush bios in nvmet (Guixin Liu)
      - shrink and better pack the nvme_iod structure (Keith Busch)
      - add comment for unaligned "fake" nqn (Linjun Bao)
      - print actual source IP address through sysfs "address" attr
        (Martin Belanger)
      - various cleanups (Jackie Liu, Wolfram Sang, Genjian Zhang)
      - handle effects after freeing the request (Keith Busch)
      - copy firmware_rev on each init (Keith Busch)
      - restrict management ioctls to admin (Keith Busch)
      - ensure subsystem reset is single threaded (Keith Busch)
      - report the actual number of tagset maps in nvme-pci (Keith
        Busch)
      - small fabrics authentication fixups (Christoph Hellwig)
      - add common code for tagset allocation and freeing (Christoph
        Hellwig)
      - stop using the request_queue in nvmet (Christoph Hellwig)
      - set min_align_mask before calculating max_hw_sectors (Rishabh
        Bhatnagar)
      - send a rediscover uevent when a persistent discovery controller
        reconnects (Sagi Grimberg)
      - misc nvmet-tcp fixes (Varun Prakash, zhenwei pi)

 - MD pull request via Song:
      - Various raid5 fix and clean up, by Logan Gunthorpe and David
        Sloan.
      - Raid10 performance optimization, by Yu Kuai.

 - sbitmap wakeup hang fixes (Hugh, Keith, Jan, Yu)

 - IO scheduler switching quisce fix (Keith)

 - s390/dasd block driver updates (Stefan)

 - support for recovery for the ublk driver (ZiyangZhang)

 - rnbd drivers fixes and updates (Guoqing, Santosh, ye, Christoph)

 - blk-mq and null_blk map fixes (Bart)

 - various bcache fixes (Coly, Jilin, Jules)

 - nbd signal hang fix (Shigeru)

 - block writeback throttling fix (Yu)

 - optimize the passthrough mapping handling (me)

 - prepare block cgroups to being gendisk based (Christoph)

 - get rid of an old PSI hack in the block layer, moving it to the
   callers instead where it belongs (Christoph)

 - blk-throttle fixes and cleanups (Yu)

 - misc fixes and cleanups (Liu Shixin, Liu Song, Miaohe, Pankaj,
   Ping-Xiang, Wolfram, Saurabh, Li Jinlin, Li Lei, Lin, Li zeming,
   Miaohe, Bart, Coly, Gaosheng

* tag 'for-6.1/block-2022-10-03' of git://git.kernel.dk/linux: (162 commits)
  sbitmap: fix lockup while swapping
  block: add rationale for not using blk_mq_plug() when applicable
  block: adapt blk_mq_plug() to not plug for writes that require a zone lock
  s390/dasd: use blk_mq_alloc_disk
  blk-cgroup: don't update the blkg lookup hint in blkg_conf_prep
  nvmet: don't look at the request_queue in nvmet_bdev_set_limits
  nvmet: don't look at the request_queue in nvmet_bdev_zone_mgmt_emulate_all
  blk-mq: use quiesced elevator switch when reinitializing queues
  block: replace blk_queue_nowait with bdev_nowait
  nvme: remove nvme_ctrl_init_connect_q
  nvme-loop: use the tagset alloc/free helpers
  nvme-loop: store the generic nvme_ctrl in set->driver_data
  nvme-loop: initialize sqsize later
  nvme-fc: use the tagset alloc/free helpers
  nvme-fc: store the generic nvme_ctrl in set->driver_data
  nvme-fc: keep ctrl->sqsize in sync with opts->queue_size
  nvme-rdma: use the tagset alloc/free helpers
  nvme-rdma: store the generic nvme_ctrl in set->driver_data
  nvme-tcp: use the tagset alloc/free helpers
  nvme-tcp: store the generic nvme_ctrl in set->driver_data
  ...
2022-10-07 09:19:14 -07:00
Guixin Liu
27b571cc45 scsi: megaraid_sas: Move megasas_dbg_lvl init to megasas_init()
The megasas_dbg_lvl is a driver level parameter. Do not initialize it in
the probe path. Otherwise we will miss the debug print when binding a
new device to the megaraid driver.

Link: https://lore.kernel.org/r/1663145283-4872-6-git-send-email-kanie@linux.alibaba.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-01 05:21:31 -04:00
Guixin Liu
ad40d51992 scsi: megaraid_sas: Remove unnecessary memset()
Remove memset() of pd_list and ld_ids in megasas_get_device_list().

These lists will be cleared by megasas_host_device_list_query(),
megasas_get_pd_list(), and megasas_ld_list_query().

Link: https://lore.kernel.org/r/1663145283-4872-5-git-send-email-kanie@linux.alibaba.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-01 05:21:31 -04:00
Guixin Liu
17883cd59f scsi: megaraid_sas: Simplify megasas_update_device_list
Remove unnecessary dcmd_ret check and goto statement.

Link: https://lore.kernel.org/r/1663145283-4872-4-git-send-email-kanie@linux.alibaba.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-01 05:21:31 -04:00
Guixin Liu
9b201b5dff scsi: megaraid_sas: Correct an error message
Correct the error message logged when allocation of ioc_init_request fails.

Link: https://lore.kernel.org/r/1663145283-4872-3-git-send-email-kanie@linux.alibaba.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-01 05:21:30 -04:00
Guixin Liu
9b78d8fade scsi: megaraid_sas: Correct value passed to scsi_device_lookup()
The "id" parameter currently passed to scsi_device_lookup() when removing a
device is incorrect. It should be "ld_target_id %
MEGASAS_MAX_DEV_PER_CHANNEL".

Link: https://lore.kernel.org/r/1663145283-4872-2-git-send-email-kanie@linux.alibaba.com
Fixes: ae6874ba4b ("scsi: megaraid_sas: Early detection of VD deletion through RaidMap update")
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-01 05:21:30 -04:00
Xuezhi Zhang
68a97feb4b scsi: megaraid: Convert sysfs snprintf() to sysfs_emit()
Fix up sysfs show entries to use sysfs_emit()

Link: https://lore.kernel.org/r/20220831140325.396295-1-zhangxuezhi3@gmail.com
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Xuezhi Zhang <zhangxuezhi1@coolpad.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15 22:34:34 -04:00
Gustavo A. R. Silva
4865821320 scsi: megaraid_sas: Use struct_size() in code related to struct MR_PD_CFG_SEQ_NUM_SYNC
Prefer struct_size() over open-coded versions of idiom:

        sizeof(struct-with-flex-array) + sizeof(type-of-flex-array) * count

where count is the max number of items the flexible array is supposed to
have.

Link: https://github.com/KSPP/linux/issues/160
Link: https://lore.kernel.org/r/b215f4760f0e8fbe5fc35be20f2487e89924424d.1660592640.git.gustavoars@kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31 23:39:59 -04:00
Gustavo A. R. Silva
41e830269d scsi: megaraid_sas: Use struct_size() in code related to struct MR_FW_RAID_MAP
Prefer struct_size() over open-coded versions of idiom:

	sizeof(struct-with-flex-array) + sizeof(type-of-flex-array) * count

where count is the max number of items the flexible array is supposed to
have.

Link: https://github.com/KSPP/linux/issues/160
Link: https://lore.kernel.org/r/1211398fb8f7ab332a93f4f8f1a63e8168dbd002.1660592640.git.gustavoars@kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31 23:39:59 -04:00
Gustavo A. R. Silva
ee92366a84 scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_PD_CFG_SEQ_NUM_SYNC
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct MR_PD_CFG_SEQ_NUM_SYNC and refactor the rest of the code
accordingly.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy() and help us make progress towards globally enabling
-fstrict-flex-arrays [0].

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Link: Link: https://reviews.llvm.org/D126864 [0]
Link: https://lore.kernel.org/r/78e9261591db072b67fcf49f0216d7046a67ca6d.1660592640.git.gustavoars@kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31 23:39:59 -04:00
Gustavo A. R. Silva
eeb3bab772 scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_DRV_RAID_MAP
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct MR_DRV_RAID_MAP and refactor the code accordingly.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy().

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Link: https://lore.kernel.org/r/1448f387821833726b99f0ce13069ada89164eb5.1660592640.git.gustavoars@kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Enhanced-by: Kees Cook <keescook@chromium.org> # Change in struct MR_DRV_RAID_MAP_ALL
2022-08-31 23:39:59 -04:00
Gustavo A. R. Silva
204a29a169 scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_FW_RAID_MAP_DYNAMIC
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct MR_FW_RAID_MAP_DYNAMIC.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy().

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Link: https://lore.kernel.org/r/896476f8fe43cf83b491c6c13f59c9ace780d82c.1660592640.git.gustavoars@kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31 23:39:59 -04:00
Gustavo A. R. Silva
ac23b92b27 scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_FW_RAID_MAP
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct MR_DRV_RAID_MAP and refactor the the rest of the code
accordingly.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy().

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Link: https://lore.kernel.org/r/4495ce170c8ef088a10f1abe0e7c227368f43242.1660592640.git.gustavoars@kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Enhanced-by: Kees Cook <keescook@chromium.org> # Change in struct MR_FW_RAID_MAP_ALL
2022-08-31 23:39:59 -04:00
Colin Ian King
4e62671a9a scsi: megaraid: Remove redundant assignment to variable mfiStatus
The variable mfiStatus is assigned a value but it is never read. The
assignment is redundant and can be removed. Also remove { } as the return
statement does not need to be in its own code block.

Cleans up clang scan build warning:

drivers/scsi/megaraid/megaraid_sas_base.c:4026:7: warning: Although the
value stored to 'mfiStatus' is used in the enclosing expression, the
value is never actually read from 'mfiStatus' [deadcode.DeadStores]

Link: https://lore.kernel.org/r/20220805115042.2340400-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31 23:39:57 -04:00
Bart Van Assche
a4e1d0b76e block: Change the return type of blk_mq_map_queues() into void
Since blk_mq_map_queues() and the .map_queues() callbacks always return 0,
change their return type into void. Most callers ignore the returned value
anyway.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Keith Busch <kbusch@kernel.org>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Doug Gilbert <dgilbert@interlog.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.garry@huawei.com>
Acked-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Link: https://lore.kernel.org/r/20220815170043.19489-3-bvanassche@acm.org
[axboe: fold in fix from Bart]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-08-22 10:07:53 -06:00
Martin K. Petersen
27883605cf Merge branch '5.20/scsi-queue' into 6.0/scsi-fixes
Include commits that weren't submitted during the 6.0 merge window.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-19 17:28:54 -04:00
Linus Torvalds
e140f731f9 SCSI misc on 20220813
Mostly small bug fixes and trivial updates.  The major new core update
 is a change to the way device, target and host reference counting is
 done to try to make it more robust (this change has soaked for a while
 to try to winkle out any bugs).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "Mostly small bug fixes and trivial updates.

  The major new core update is a change to the way device, target and
  host reference counting is done to try to make it more robust (this
  change has soaked for a while to try to winkle out any bugs)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: pm8001: Fix typo 'the the' in comment
  scsi: megaraid_sas: Remove redundant variable cmd_type
  scsi: FlashPoint: Remove redundant variable bm_int_st
  scsi: zfcp: Fix missing auto port scan and thus missing target ports
  scsi: core: Call blk_mq_free_tag_set() earlier
  scsi: core: Simplify LLD module reference counting
  scsi: core: Make sure that hosts outlive targets
  scsi: core: Make sure that targets outlive devices
  scsi: ufs: ufs-pci: Correct check for RESET DSM
  scsi: target: core: De-RCU of se_lun and se_lun acl
  scsi: target: core: Fix race during ACL removal
  scsi: ufs: core: Correct ufshcd_shutdown() flow
  scsi: ufs: core: Increase the maximum data buffer size
  scsi: lpfc: Check the return value of alloc_workqueue()
2022-08-13 13:41:48 -07:00
Guixin Liu
7dd6f4af94 scsi: megaraid_sas: Remove unnecessary kfree()
When alloc ctrl mem fails, the reply_map will subsequently be freed in
megasas_free_ctrl_mem(). No need to free it in megasas_alloc_ctrl_mem().

Link: https://lore.kernel.org/r/1659424740-46918-1-git-send-email-kanie@linux.alibaba.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-11 22:13:18 -04:00
Guixin Liu
8c499e4924 scsi: megaraid_sas: Fix double kfree()
When allocating log_to_span fails, kfree(instance->ctrl_context) is called
twice. Remove redundant call.

Link: https://lore.kernel.org/r/1659424729-46502-1-git-send-email-kanie@linux.alibaba.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-11 22:11:18 -04:00
Linus Torvalds
746fc76b82 SCSI misc on 20220804
Updates to the usual drivers (ufs, qla2xx, target, lpfc, smartpqi,
 mpi3mr).  The main driver change that might cause issues on down the
 road is the conversion of some of our oldest surviving drivers to the
 DMA API (should only affect m68k).  The only major core change is the
 rework of async resume; the rest are either completely trivial or for
 updating deprecated APIs.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (ufs, qla2xx, target, lpfc, smartpqi,
  mpi3mr).

  The main driver change that might cause issues on down the road is the
  conversion of some of our oldest surviving drivers to the DMA API
  (should only affect m68k).

  The only major core change is the rework of async resume; the rest are
  either completely trivial or for updating deprecated APIs"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits)
  scsi: target: Remove XDWRITEREAD emulated support
  scsi: megaraid: Remove the static variable initialisation
  scsi: ch: Do not initialise statics to 0
  scsi: ufs: core: Fix spelling mistake "Cannnot" -> "Cannot"
  scsi: target: iscsi: Do not require target authentication
  scsi: target: iscsi: Allow AuthMethod=None
  scsi: target: iscsi: Support base64 in CHAP
  scsi: target: iscsi: Add support for extended CDB AHS
  scsi: ufs: dt-bindings: Add SC8280XP binding
  scsi: target: iscsi: Fix clang -Wformat warnings
  scsi: ufs: core: Read device property for ref clock
  scsi: libsas: Resume SAS host for phy reset or enable via sysfs
  scsi: hisi_sas: Modify v3 HW SATA completion error processing
  scsi: hisi_sas: Relocate DMA unmap of SMP task
  scsi: hisi_sas: Remove unnecessary variable to hold DMA map elements
  scsi: hisi_sas: Call hisi_sas_slave_configure() from slave_configure_v3_hw()
  scsi: mpi3mr: Delete a stray tab
  scsi: mpi3mr: Unlock on error path
  scsi: mpi3mr: Reduce VD queue depth on detecting throttling
  scsi: mpi3mr: Resource Based Metering
  ...
2022-08-04 19:47:37 -07:00
Colin Ian King
6464d5b8a2 scsi: megaraid_sas: Remove redundant variable cmd_type
The variable cmd_type is assigned a value but it is never read. The
variable and the assignment are redundant and can be removed.

Cleans up clang scan build warning:

 drivers/scsi/megaraid/megaraid_sas_fusion.c:3228:10: warning: Although
 the value stored to 'cmd_type' is used in the enclosing expression, the
 value is never actually read from 'cmd_type' [deadcode.DeadStores]

Link: https://lore.kernel.org/r/20220730124509.148457-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-01 19:53:18 -04:00
Jason Wang
68126eeb6d scsi: megaraid: Remove the static variable initialisation
Initialising global and static variables to 0 is unnecessary.  Remove the
initialisation.

Link: https://lore.kernel.org/r/20220723091620.5463-1-wangborong@cdjrlc.com
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-26 22:15:47 -04:00
Ming Lei
8312cd3a7b scsi: megaraid: Clear READ queue map's nr_queues
The megaraid SCSI driver sets set->nr_maps as 3 if poll_queues is > 0, and
blk-mq actually initializes each map's nr_queues as nr_hw_queues.
Consequently the driver has to clear READ queue map's nr_queues, otherwise
the queue map becomes broken if poll_queues is set as non-zero.

Link: https://lore.kernel.org/r/20220706125942.528533-1-ming.lei@redhat.com
Fixes: 9e4bec5b2a ("scsi: megaraid_sas: mq_poll support")
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: sumit.saxena@broadcom.com
Cc: chandrakanth.patil@broadcom.com
Cc: linux-block@vger.kernel.org
Cc: Hannes Reinecke <hare@suse.de>
Reported-by: Guangwu Zhang <guazhang@redhat.com>
Tested-by: Guangwu Zhang <guazhang@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-13 22:57:03 -04:00
Jiapeng Chong
acd1a2786c scsi: megaraid_sas: Clean up some inconsistent indenting
This was found by coccicheck:

drivers/scsi/megaraid/megaraid_sas_base.c:3950 process_fw_state_change_wq() warn: inconsistent indenting.

Link: https://lore.kernel.org/r/20220630074152.29171-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07 17:02:35 -04:00
Harshit Mogalapalli
2f9e9a7b0c scsi: megaraid_sas: Remove redundant memset() statement
As memset() of scmd->sense_buffer is immediately followed by a memcpy()
where scmd->sense_buffer is the destination. The memset() is redundant.

Link: https://lore.kernel.org/r/20220505143214.44908-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-19 20:16:26 -04:00
Martin K. Petersen
08c84a75dd Merge branch '5.18/scsi-fixes' into 5.19/scsi-staging
Pull in 5.18 fixes branch which contains a bunch of fixes required for
the lpfc driver update.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18 22:46:38 -04:00
Wan Jiabing
3a6a7187f0 scsi: megaraid_sas: Remove unnecessary memset
instance->cmd_list is allocated by kcalloc(). The memory is already set to
zero. It is unnecessary to call memset again.

Link: https://lore.kernel.org/r/20220407072442.4137977-1-wanjiabing@vivo.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-11 21:55:12 -04:00
Chandrakanth patil
56495f295d scsi: megaraid_sas: Target with invalid LUN ID is deleted during scan
The megaraid_sas driver supports single LUN for RAID devices. That is LUN
0. All other LUNs are unsupported. When a device scan on a logical target
with invalid LUN number is invoked through sysfs, that target ends up
getting removed.

Add LUN ID validation in the slave destroy function to avoid the target
deletion.

Link: https://lore.kernel.org/r/20220324094711.48833-1-chandrakanth.patil@broadcom.com
Signed-off-by: Chandrakanth patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-06 22:58:17 -04:00
Yang Li
7db304bd2a scsi: megasas: Clean up some inconsistent indenting
Eliminate the following smatch warning:
drivers/scsi/megaraid/megaraid_sas_fusion.c:5104 megasas_reset_fusion()
warn: inconsistent indenting

Link: https://lore.kernel.org/r/20220225011605.130927-1-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15 00:06:45 -04:00
Bart Van Assche
96e77a2743 scsi: megasas: Stop using the SCSI pointer
Set .cmd_size in the SCSI host template instead of using the SCSI pointer
from struct scsi_cmnd. This patch prepares for removal of the SCSI pointer
from struct scsi_cmnd.

Link: https://lore.kernel.org/r/20220218195117.25689-34-bvanassche@acm.org
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22 21:11:05 -05:00
Linus Torvalds
e1a7aa25ff SCSI misc on 20220113
This series consists of the usual driver updates (ufs, pm80xx, lpfc,
 mpi3mr, mpt3sas, hisi_sas, libsas) and minor updates and bug fixes.
 The most impactful change is likely the switch from GFP_DMA to
 GFP_KERNEL in a bunch of drivers, but even that shouldn't affect too
 many people.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This series consists of the usual driver updates (ufs, pm80xx, lpfc,
  mpi3mr, mpt3sas, hisi_sas, libsas) and minor updates and bug fixes.

  The most impactful change is likely the switch from GFP_DMA to
  GFP_KERNEL in a bunch of drivers, but even that shouldn't affect too
  many people"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (121 commits)
  scsi: mpi3mr: Bump driver version to 8.0.0.61.0
  scsi: mpi3mr: Fixes around reply request queues
  scsi: mpi3mr: Enhanced Task Management Support Reply handling
  scsi: mpi3mr: Use TM response codes from MPI3 headers
  scsi: mpi3mr: Add io_uring interface support in I/O-polled mode
  scsi: mpi3mr: Print cable mngnt and temp threshold events
  scsi: mpi3mr: Support Prepare for Reset event
  scsi: mpi3mr: Add Event acknowledgment logic
  scsi: mpi3mr: Gracefully handle online FW update operation
  scsi: mpi3mr: Detect async reset that occurred in firmware
  scsi: mpi3mr: Add IOC reinit function
  scsi: mpi3mr: Handle offline FW activation in graceful manner
  scsi: mpi3mr: Code refactor of IOC init - part2
  scsi: mpi3mr: Code refactor of IOC init - part1
  scsi: mpi3mr: Fault IOC when internal command gets timeout
  scsi: mpi3mr: Display IOC firmware package version
  scsi: mpi3mr: Handle unaligned PLL in unmap cmnds
  scsi: mpi3mr: Increase internal cmnds timeout to 60s
  scsi: mpi3mr: Do access status validation before adding devices
  scsi: mpi3mr: Add support for PCIe Managed Switch SES device
  ...
2022-01-14 14:37:34 +01:00
Nitesh Narayan Lal
8049da6f39 scsi: megaraid_sas: Use irq_set_affinity_and_hint()
The driver uses irq_set_affinity_hint() specifically for the high IOPS
queue interrupts for two purposes:

 - To set the affinity_hint which is consumed by the userspace for
   distributing the interrupts

 - To apply an affinity that it provides

The driver enforces its own affinity to bind the high IOPS queue interrupts
to the local NUMA node. However, irq_set_affinity_hint() applying the
provided cpumask as an affinity for the interrupt is an undocumented side
effect.

To remove this side effect irq_set_affinity_hint() has been marked
as deprecated and new interfaces have been introduced. Hence, replace the
irq_set_affinity_hint() with the new interface irq_set_affinity_and_hint()
where the provided mask needs to be applied as the affinity and
affinity_hint pointer needs to be set and replace with
irq_update_affinity_hint() where only affinity_hint needs to be updated.

Change the megasas_set_high_iops_queue_affinity_hint function name to
megasas_set_high_iops_queue_affinity_and_hint to clearly indicate that the
function is setting both affinity and affinity_hint.

Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Link: https://lore.kernel.org/r/20210903152430.244937-5-nitesh@redhat.com
2021-12-10 20:47:38 +01:00
Bart Van Assche
acad9c4324 scsi: megaraid: Fix a kernel-doc warning
Fix the following kernel-doc warning:

drivers/scsi/megaraid/megaraid_mbox.c:1439: warning: Excess function parameter 'done' description in 'megaraid_queue_command_lck'

Link: https://lore.kernel.org/r/20211129194609.3466071-10-bvanassche@acm.org
Fixes: af049dfd0b ("scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-29 23:02:14 -05:00
Bart Van Assche
09723bb252 scsi: megaraid_sas: Switch to attribute groups
struct device supports attribute groups directly but does not support
struct device_attribute directly. Hence switch to attribute groups.

Link: https://lore.kernel.org/r/20211012233558.4066756-29-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:45:57 -04:00
Bart Van Assche
ab53de242e scsi: megaraid_mbox: Switch to attribute groups
struct device supports attribute groups directly but does not support
struct device_attribute directly. Hence switch to attribute groups.

Link: https://lore.kernel.org/r/20211012233558.4066756-29-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:45:56 -04:00
Bart Van Assche
af049dfd0b scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions
The DEF_SCSI_QCMD() macro passes the addresses of the SCSI host lock and
also that of the scsi_done function to the queuecommand_lck() function
implementations. Remove the 'scsi_done' argument since its address is
now a constant and instead call 'scsi_done' directly from inside the
queuecommand_lck() functions.

Link: https://lore.kernel.org/r/20211007204618.2196847-14-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:32:16 -04:00
Bart Van Assche
012f14b269 scsi: megaraid_sas: Call scsi_done() directly
Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Link: https://lore.kernel.org/r/20211007202923.2174984-49-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:29:15 -04:00
Bart Van Assche
f1170b83df scsi: megaraid_mbox: Call scsi_done() directly
Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Link: https://lore.kernel.org/r/20211007202923.2174984-49-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:29:14 -04:00
Martin K. Petersen
ec65e6beb0 Merge branch '5.15/scsi-fixes' into 5.16/scsi-staging
Merge the 5.15/scsi-fixes branch into the staging tree to resolve UFS
conflict reported by sfr.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-12 11:58:12 -04:00
Sumit Saxena
cdf7f6a10d scsi: megaraid_sas: Driver version update to 07.719.03.00-rc1
Link: https://lore.kernel.org/r/20210929124022.24605-4-sumit.saxena@broadcom.com
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-04 23:20:10 -04:00
Sumit Saxena
4c32edc350 scsi: megaraid_sas: Add helper functions for irq_context
Adding helper functions for ISR access and release to improve readability.

Link: https://lore.kernel.org/r/20210929124022.24605-3-sumit.saxena@broadcom.com
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-04 23:20:09 -04:00
Sumit Saxena
e7dcc514a4 scsi: megaraid_sas: Fix concurrent access to ISR between IRQ polling and real interrupt
IRQ polling thread calls ISR after enable_irq() to handle any missed I/O
completion. The atomic flag "in_used" was added to have the synchronization
between the IRQ polling thread and the interrupt context. There is a bug
around it leading to a race condition.

Below is the sequence:

 - IRQ polling thread accesses ISR, fetches the reply descriptor.

 - Real interrupt arrives and pre-empts polling thread (enable_irq() is
   already called).

 - Interrupt context picks the same reply descriptor as fetched by polling
   thread, processes it, and exits.

 - Polling thread resumes and processes the descriptor which is already
   processed by interrupt thread leads to kernel crash.

Setting the "in_used" flag before fetching the reply descriptor ensures
synchronized access to ISR.

Link: https://www.spinics.net/lists/linux-scsi/msg159440.html
Link: https://lore.kernel.org/r/20210929124022.24605-2-sumit.saxena@broadcom.com
Fixes: 9bedd36e91 ("scsi: megaraid_sas: Handle missing interrupts while re-enabling IRQs")
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-04 23:20:09 -04:00
Colin Ian King
655a68b220 scsi: megaraid: Clean up some inconsistent indenting
There are a few statements where the indentation is not correct, clean
these up.

Link: https://lore.kernel.org/r/20210902223643.56979-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13 22:15:50 -04:00
jing yangyang
17dfd54d39 scsi: megaraid: Fix Coccinelle warning
WARNING !A || A && B is equivalent to !A || B

This issue was detected with the help of Coccinelle.

Link: https://lore.kernel.org/r/20210820030805.12383-1-jing.yangyang@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: jing yangyang <jing.yangyang@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13 22:15:48 -04:00
Martin K. Petersen
315480209b Merge branch '5.14/scsi-fixes' into 5.15/scsi-staging
Resolve mpt3sas conflict between 5.14/scsi-fixes and 5.15/scsi-staging
reported by sfr.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-11 22:37:22 -04:00
Bart Van Assche
4bccecf1c9 scsi: megaraid: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
Prepare for removal of the request pointer by using scsi_cmd_to_rq()
instead. This patch does not change any functionality.

Link: https://lore.kernel.org/r/20210809230355.8186-29-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-11 22:25:39 -04:00
Harshvardhan Jha
77541f78ea scsi: megaraid_mm: Fix end of loop tests for list_for_each_entry()
The list_for_each_entry() iterator, "adapter" in this code, can never be
NULL.  If we exit the loop without finding the correct adapter then
"adapter" points invalid memory that is an offset from the list head.  This
will eventually lead to memory corruption and presumably a kernel crash.

Link: https://lore.kernel.org/r/20210708074642.23599-1-harshvardhan.jha@oracle.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Harshvardhan Jha <harshvardhan.jha@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-28 23:29:09 -04:00
Zhen Lei
4c92f89802 scsi: megaraid_mbox: Use DEVICE_ATTR_ADMIN_RO() macro
Use DEVICE_ATTR_ADMIN_RO() macro helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.

Link: https://lore.kernel.org/r/20210616034419.725-4-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 23:00:02 -04:00
Martin K. Petersen
1ff28f229b Merge branch '5.14/scsi-result' into 5.14/scsi-staging
Include Hannes' SCSI command result rework in the staging branch.

[mkp: remove DRIVER_SENSE from mpi3mr]

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02 01:37:04 -04:00
Chandrakanth Patil
6143f6f620 scsi: megaraid_sas: Update driver version to 07.717.02.00-rc1
Link: https://lore.kernel.org/r/20210528131307.25683-6-chandrakanth.patil@broadcom.com
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02 01:06:33 -04:00
Chandrakanth Patil
9bedd36e91 scsi: megaraid_sas: Handle missing interrupts while re-enabling IRQs
While reenabling the IRQ after IRQ poll there may be a small window for the
firmware to post the replies with interrupts raised. In that case the
driver will not see the interrupts which leads to I/O timeout.

This issue only happens when there are many I/O completions on a single
reply queue. This forces the driver to switch between the interrupt and IRQ
context.

Make the driver process the reply queue one more time after enabling the
IRQ.

Link: https://lore.kernel.org/linux-scsi/20201102072746.27410-1-sreekanth.reddy@broadcom.com/
Link: https://lore.kernel.org/r/20210528131307.25683-5-chandrakanth.patil@broadcom.com
Cc: Tomas Henzl <thenzl@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02 01:06:33 -04:00
Kashyap Desai
ae6874ba4b scsi: megaraid_sas: Early detection of VD deletion through RaidMap update
Consider the case where a VD is deleted and the targetID of that VD is
assigned to a newly created VD. If the sequence of deletion/addition of VD
happens very quickly there is a possibility that second event (VD add)
occurs even before the driver processes the first event (VD delete).  As
event processing is done in deferred context the device list remains the
same (but targetID is re-used) so driver will not learn the VD
deletion/additon. I/Os meant for the older VD will be directed to new VD
which may lead to data corruption.

Make driver detect the deleted VD as soon as possible based on the RaidMap
update and block further I/O to that device.

Link: https://lore.kernel.org/r/20210528131307.25683-4-chandrakanth.patil@broadcom.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02 01:06:33 -04:00
Chandrakanth Patil
b5438f48fd scsi: megaraid_sas: Fix resource leak in case of probe failure
The driver doesn't clean up all the allocated resources properly when
scsi_add_host(), megasas_start_aen() function fails during the PCI device
probe.

Clean up all those resources.

Link: https://lore.kernel.org/r/20210528131307.25683-3-chandrakanth.patil@broadcom.com
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02 01:06:33 -04:00
Chandrakanth Patil
79db830162 scsi: megaraid_sas: Send all non-RW I/Os for TYPE_ENCLOSURE device through firmware
The driver issues all non-ReadWrite I/Os for TYPE_ENCLOSURE devices through
the fast path with invalid dev handle. Fast path in turn directs all the
I/Os to the firmware. As firmware stopped handling those I/Os from SAS3.5
generation of controllers (Ventura generation and onwards) this will lead
to I/O failures.

Switch the driver to issue all the non-ReadWrite I/Os for TYPE_ENCLOSURE
devices directly to firmware for SAS3.5 generation of controllers and
later.

Link: https://lore.kernel.org/r/20210528131307.25683-2-chandrakanth.patil@broadcom.com
Cc: <stable@vger.kernel.org> # v5.11+
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02 01:06:33 -04:00
Hannes Reinecke
3d45cefc8e scsi: core: Drop obsolete Linux-specific SCSI status codes
Originally the SCSI subsystem has been using 'special' SCSI status codes,
which were the SAM-specified ones but shifted by 1.  As most drivers have
now been modified to use the SAM-specified ones, having two nearly
identical sets of definitions only causes confusion.

The Linux-specifed SCSI status codes have been marked obsolete for several
years so drop them and use the SAM-specified status codes throughout.

Link: https://lore.kernel.org/r/20210427083046.31620-41-hare@suse.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31 23:59:18 -04:00
Hannes Reinecke
464a00c9e0 scsi: core: Kill DRIVER_SENSE
Replace the check for DRIVER_SENSE with a check for
scsi_status_is_check_condition().

Audit all callsites to ensure the SAM status is set correctly. For
backwards compability move the DRIVER_SENSE definition to sg.h, and update
sg, bsg, and scsi_ioctl to set the DRIVER_SENSE driver_status whenever
SAM_STAT_CHECK_CONDITION is present.

[mkp: fix zeroday srp warning]

Link: https://lore.kernel.org/r/20210427083046.31620-10-hare@suse.de
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

fix
2021-05-31 22:48:21 -04:00
Hannes Reinecke
f2b1e9c6f8 scsi: core: Introduce scsi_build_sense()
Introduce scsi_build_sense() as a wrapper around scsi_build_sense_buffer()
to format the buffer and set the correct SCSI status.

Link: https://lore.kernel.org/r/20210427083046.31620-8-hare@suse.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31 22:48:21 -04:00
Shixin Liu
311e87b709 scsi: megaraid_sas: Use DEFINE_SPINLOCK() for spinlock
spinlock can be initialized automatically with DEFINE_SPINLOCK() rather
than explicitly calling spin_lock_init().

Link: https://lore.kernel.org/r/20210329094532.4165147-1-liushixin2@huawei.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shixin Liu <liushixin2@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-10 13:24:07 -04:00
Colin Ian King
807b31d8e0 scsi: megaraid_mbox: Remove redundant initialization of pointer mbox
The pointer mbox is being initialized with a value that is never read and
it is being updated later with a new value.  The initialization is
redundant and can be removed.

Link: https://lore.kernel.org/r/20210420104919.376734-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")
2021-05-10 13:24:07 -04:00
Masahiro Yamada
fa60ce2cb4 treewide: remove editor modelines and cruft
The section "19) Editor modelines and other cruft" in
Documentation/process/coding-style.rst clearly says, "Do not include any
of these in source files."

I recently receive a patch to explicitly add a new one.

Let's do treewide cleanups, otherwise some people follow the existing code
and attempt to upstream their favoriate editor setups.

It is even nicer if scripts/checkpatch.pl can check it.

If we like to impose coding style in an editor-independent manner, I think
editorconfig (patch [1]) is a saner solution.

[1] https://lore.kernel.org/lkml/20200703073143.423557-1-danny@kdrag0n.dev/

Link: https://lkml.kernel.org/r/20210324054457.1477489-1-masahiroy@kernel.org
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>	[auxdisplay]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-05-07 00:26:34 -07:00
Lee Jones
d4f5ae2159 scsi: megaraid_mbox: Fix function name megaraid_queue_command_lck() in description
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/megaraid/megaraid_mbox.c:1438: warning: expecting prototype for megaraid_queue_command(). Prototype was for megaraid_queue_command_lck() instead

Link: https://lore.kernel.org/r/20210303144631.3175331-5-lee.jones@linaro.org
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Sumit Saxena <sumit.saxena@broadcom.com>
Cc: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Atul Mukker <Atul.Mukker@lsi.com>
Cc: Sreenivas Bagalkote <Sreenivas.Bagalkote@lsi.com>
Cc: Manoj Jose <Manoj.Jose@lsi.com>
Cc: megaraidlinux@lsi.com
Cc: megaraidlinux.pdl@broadcom.com
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-15 22:14:50 -04:00
Lee Jones
616f6d8d9e scsi: megaraid_sas: Fix a bunch of misnamed functions in their headers
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/megaraid/megaraid_sas_base.c:483: warning: expecting prototype for megasas_clear_interrupt_xscale(). Prototype was for megasas_clear_intr_xscale() instead
 drivers/scsi/megaraid/megaraid_sas_base.c:666: warning: expecting prototype for megasas_clear_interrupt_ppc(). Prototype was for megasas_clear_intr_ppc() instead
 drivers/scsi/megaraid/megaraid_sas_base.c:795: warning: expecting prototype for megasas_clear_interrupt_skinny(). Prototype was for megasas_clear_intr_skinny() instead
 drivers/scsi/megaraid/megaraid_sas_base.c:943: warning: expecting prototype for megasas_clear_interrupt_gen2(). Prototype was for megasas_clear_intr_gen2() instead
 drivers/scsi/megaraid/megaraid_sas_base.c:4902: warning: expecting prototype for opcode(). Prototype was for megasas_host_device_list_query() instead
 drivers/scsi/megaraid/megaraid_sas_base.c:5173: warning: expecting prototype for megasas_get_controller_info(). Prototype was for megasas_get_ctrl_info() instead

Link: https://lore.kernel.org/r/20210303144631.3175331-3-lee.jones@linaro.org
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Sumit Saxena <sumit.saxena@broadcom.com>
Cc: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: megaraidlinux.pdl@broadcom.com
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-15 22:14:50 -04:00
Lee Jones
bbb2c03745 scsi: megaraid_mm: Fix incorrect function name in header
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/megaraid/megaraid_mm.c:505: warning: expecting prototype for mraid_mm_attch_buf(). Prototype was for mraid_mm_attach_buf() instead

Link: https://lore.kernel.org/r/20210303144631.3175331-2-lee.jones@linaro.org
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Sumit Saxena <sumit.saxena@broadcom.com>
Cc: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: megaraidlinux.pdl@broadcom.com
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-15 22:14:49 -04:00
Kashyap Desai
9e4bec5b2a scsi: megaraid_sas: mq_poll support
Implement mq_poll interface support in megaraid_sas. This feature
requires shared host tag support in kernel and driver.

The driver can work in non-IRQ mode which means there will not be any MSI-x
vector associated for poll_queues. The MegaRAID hardware has a single
submission queue and multiple reply queues. However, using the shared host
tagset support will enable the driver to simulate multiple hardware queues.

Change driver to allocate some extra reply queues which will be marked as
poll_queues. These poll_queues will not have associated MSI-x vectors. All
I/O completions on these queues will be done through the IOPOLL interface.

megaraid_sas with 8 poll_queues and using the io_uring hiprio=1 setting can
reach 3.2M IOPS with zero interrupts generated by the hardware.

The IOPOLL feature can be enabled using module parameter poll_queues.

Link: https://lore.kernel.org/r/20210215074048.19424-3-kashyap.desai@broadcom.com
Cc: sumit.saxena@broadcom.com
Cc: chandrakanth.patil@broadcom.com
Cc: linux-block@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-04 17:37:03 -05:00
Kashyap Desai
6cb9b15238 scsi: megaraid_sas: Replace sdev_busy with local counter
Use local tracking of per-sdev outstanding command since sdev_busy in SCSI
mid layer is improved for performance reason using sbitmap (earlier it was
atomic variable).

Link: https://lore.kernel.org/r/20210122023317.687987-11-ming.lei@redhat.com
Cc: Omar Sandoval <osandov@fb.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Sumanesh Samanta <sumanesh.samanta@broadcom.com>
Cc: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-04 17:37:00 -05:00
dingsenjie
83e4a9b3db scsi: megaraid_mbox: Fix spelling of 'allocated'
allocted -> allocated

Link: https://lore.kernel.org/r/20210126054908.45468-1-dingsenjie@163.com
Signed-off-by: dingsenjie <dingsenjie@yulong.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-29 13:38:25 -05:00
Martin K. Petersen
4d82e9db42 Merge branch '5.11/scsi-fixes' into 5.12/scsi-queue
The UFS core has received a substantial rework this cycle. This in
turn has caused a merge conflict in linux-next. Merge 5.11/scsi-fixes
into 5.12/scsi-queue and resolve the conflict.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-26 21:52:58 -05:00
kernel test robot
12e3ef8b3e scsi: megaraid: Fix ifnullfree.cocci warnings
NULL check before vfree is not needed.

Generated by: scripts/coccinelle/free/ifnullfree.cocci

Link: https://lore.kernel.org/r/alpine.DEB.2.22.394.2012111113060.2669@hadrien
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-22 22:24:44 -05:00
Arnd Bergmann
b112036535 scsi: megaraid_sas: Fix MEGASAS_IOC_FIRMWARE regression
Phil Oester reported that a fix for a possible buffer overrun that I sent
caused a regression that manifests in this output:

 Event Message: A PCI parity error was detected on a component at bus 0 device 5 function 0.
 Severity: Critical
 Message ID: PCI1308

The original code tried to handle the sense data pointer differently when
using 32-bit 64-bit DMA addressing, which would lead to a 32-bit dma_addr_t
value of 0x11223344 to get stored

32-bit kernel:       44 33 22 11 ?? ?? ?? ??
64-bit LE kernel:    44 33 22 11 00 00 00 00
64-bit BE kernel:    00 00 00 00 44 33 22 11

or a 64-bit dma_addr_t value of 0x1122334455667788 to get stored as

32-bit kernel:       88 77 66 55 ?? ?? ?? ??
64-bit kernel:       88 77 66 55 44 33 22 11

In my patch, I tried to ensure that the same value is used on both 32-bit
and 64-bit kernels, and picked what seemed to be the most sensible
combination, storing 32-bit addresses in the first four bytes (as 32-bit
kernels already did), and 64-bit addresses in eight consecutive bytes (as
64-bit kernels already did), but evidently this was incorrect.

Always storing the dma_addr_t pointer as 64-bit little-endian,
i.e. initializing the second four bytes to zero in case of 32-bit
addressing, apparently solved the problem for Phil, and is consistent with
what all 64-bit little-endian machines did before.

I also checked in the history that in previous versions of the code, the
pointer was always in the first four bytes without padding, and that
previous attempts to fix 64-bit user space, big-endian architectures and
64-bit DMA were clearly flawed and seem to have introduced made this worse.

Link: https://lore.kernel.org/r/20210104234137.438275-1-arnd@kernel.org
Fixes: 381d34e376 ("scsi: megaraid_sas: Check user-provided offsets")
Fixes: 107a60dd71 ("scsi: megaraid_sas: Add support for 64bit consistent DMA")
Fixes: 94cd65ddf4 ("[SCSI] megaraid_sas: addded support for big endian architecture")
Fixes: 7b2519afa1 ("[SCSI] megaraid_sas: fix 64 bit sense pointer truncation")
Reported-by: Phil Oester <kernel@linuxace.com>
Tested-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-07 22:26:00 -05:00
Martin K. Petersen
a8f808839a Merge branch '5.11/scsi-postmerge' into 5.11/scsi-fixes
Merge two commits that had dependencies on other 5.11 trees (the block
and the irq trees respectively).

 - We reverted a megaraid_sas change in 5.10 due to missing block
   layer plumbing. Now that this is in place, reinstate the change.

 - The hisi_sas driver had a dependency on a driver core irq change
   that went in through Thomas' tree.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-04 13:27:39 -05:00
Martin K. Petersen
81e7eb5bf0 Revert "Revert "scsi: megaraid_sas: Added support for shared host tagset for cpuhotplug""
This reverts commit 1a0e1943d8.

Commit b3c6a59975 ("block: Fix a lockdep complaint triggered by
request queue flushing") has been reverted and commit fb01a2932e has
been introduced in its place. Consequently, it is now safe to
reinstate the megaraid_sas tagset changes that led to boot problems in
5.10.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-16 22:43:44 -05:00
Linus Torvalds
60f7c503d9 SCSI misc on 20201216
This series consists of the usual driver updates (ufs, qla2xxx,
 smartpqi, target, zfcp, fnic, mpt3sas, ibmvfc) plus a load of
 cleanups, a major power management rework and a load of assorted minor
 updates.  There are a few core updates (formatting fixes being the big
 one) but nothing major this cycle.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This consists of the usual driver updates (ufs, qla2xxx, smartpqi,
  target, zfcp, fnic, mpt3sas, ibmvfc) plus a load of cleanups, a major
  power management rework and a load of assorted minor updates.

  There are a few core updates (formatting fixes being the big one) but
  nothing major this cycle"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
  scsi: mpt3sas: Update driver version to 36.100.00.00
  scsi: mpt3sas: Handle trigger page after firmware update
  scsi: mpt3sas: Add persistent MPI trigger page
  scsi: mpt3sas: Add persistent SCSI sense trigger page
  scsi: mpt3sas: Add persistent Event trigger page
  scsi: mpt3sas: Add persistent Master trigger page
  scsi: mpt3sas: Add persistent trigger pages support
  scsi: mpt3sas: Sync time periodically between driver and firmware
  scsi: qla2xxx: Update version to 10.02.00.104-k
  scsi: qla2xxx: Fix device loss on 4G and older HBAs
  scsi: qla2xxx: If fcport is undergoing deletion complete I/O with retry
  scsi: qla2xxx: Fix the call trace for flush workqueue
  scsi: qla2xxx: Fix flash update in 28XX adapters on big endian machines
  scsi: qla2xxx: Handle aborts correctly for port undergoing deletion
  scsi: qla2xxx: Fix N2N and NVMe connect retry failure
  scsi: qla2xxx: Fix FW initialization error on big endian machines
  scsi: qla2xxx: Fix crash during driver load on big endian machines
  scsi: qla2xxx: Fix compilation issue in PPC systems
  scsi: qla2xxx: Don't check for fw_started while posting NVMe command
  scsi: qla2xxx: Tear down session if FW say it is down
  ...
2020-12-16 13:34:31 -08:00
Linus Torvalds
1a0e1943d8 Revert "scsi: megaraid_sas: Added support for shared host tagset for cpuhotplug"
This reverts commit 103fbf8e40.

It turns out that it causes long boot-time latencies (to the point of
timeouts and failed boots).

The cause is the increase in request queues, and a fix for that is
queued up for 5.11, but we're reverting this commit that triggered the
problem for now.

Reported-and-tested-by: John Garry <john.garry@huawei.com>
Reported-and-tested-by: Julia Lawall <julia.lawall@inria.fr>
Reported-by: Qian Cai <cai@redhat.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/linux-scsi/fe3dff7dae4494e5a88caffbb4d877bbf472dceb.camel@redhat.com/
Link: https://lore.kernel.org/lkml/alpine.DEB.2.22.394.2012081813310.2680@hadrien/
Link: https://lore.kernel.org/linux-block/20201203012638.543321-1-ming.lei@redhat.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-08 15:00:36 -08:00
Vaibhav Gupta
498854102c scsi: megaraid_sas: Update function description
Function parameter 'pdev 'is described as Generic Device Structure. It is a
PCI device structure.

Link: https://lore.kernel.org/r/20201102164730.324035-4-vaibhavgupta40@gmail.com
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-25 23:14:29 -05:00
Vaibhav Gupta
977001df03 scsi: megaraid_sas: Use generic power management
Drivers should do only device-specific jobs. But in general, drivers using
legacy PCI PM framework for .suspend()/.resume() have to manage many PCI
PM-related tasks themselves which can be done by PCI Core itself. This
brings extra load on the driver and it directly calls PCI helper functions
to handle them.

Switch to the new generic framework by updating function signatures and
define a "struct dev_pm_ops" variable to bind PM callbacks. Also, remove
unnecessary calls to the PCI Helper functions along with the legacy
.suspend & .resume bindings.

Link: https://lore.kernel.org/r/20201102164730.324035-3-vaibhavgupta40@gmail.com
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-25 23:14:29 -05:00
Vaibhav Gupta
8ed9d987c6 scsi: megaraid_sas: Drop PCI wakeup calls from .resume
The driver calls pci_enable_wake(...., false) in megasas_resume(), and
there is no corresponding pci_enable_wake(...., true) in megasas_suspend().
Either it should do enable-wake the device in .suspend() or should not
invoke pci_enable_wake() at all.

Concluding that this driver doesn't support enable-wake and PCI core calls
pci_enable_wake(pci_dev, PCI_D0, false) during resume, drop it from
megasas_resume().

Link: https://lore.kernel.org/r/20201102164730.324035-2-vaibhavgupta40@gmail.com
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-25 23:14:29 -05:00
Arnd Bergmann
bba84aecca scsi: megaraid_sas: Simplify compat_ioctl handling
There have been several attempts to fix serious problems in the compat
handling in megasas_mgmt_compat_ioctl_fw(), and it also uses the
compat_alloc_user_space() function.

Folding the compat handling into the regular ioctl function with
in_compat_syscall() simplifies it a lot and avoids some of the remaining
problems:

 - missing handling of unaligned pointers

 - overflowing the ioc->frame.raw array from invalid input

 - compat_alloc_user_space()

Link: https://lore.kernel.org/r/20201030164450.1253641-3-arnd@kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-04 21:56:17 -05:00
Arnd Bergmann
381d34e376 scsi: megaraid_sas: Check user-provided offsets
It sounds unwise to let user space pass an unchecked 32-bit offset into a
kernel structure in an ioctl. This is an unsigned variable, so checking the
upper bound for the size of the structure it points into is sufficient to
avoid data corruption, but as the pointer might also be unaligned, it has
to be written carefully as well.

While I stumbled over this problem by reading the code, I did not continue
checking the function for further problems like it.

Link: https://lore.kernel.org/r/20201030164450.1253641-2-arnd@kernel.org
Fixes: c4a3e0a529 ("[SCSI] MegaRAID SAS RAID: new driver")
Cc: <stable@vger.kernel.org> # v2.6.15+
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-04 21:56:17 -05:00
Linus Torvalds
55e0500eb5 SCSI misc on 20201013
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
 ibmvfc, lpfc, smartpqi, hisi_sas, qedi, qedf, mpt3sas) and minor bug
 fixes.  There are only three core changes: adding sense codes,
 cleaning up noretry and adding an option for limitless retries.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "The usual driver updates (ufs, qla2xxx, tcmu, ibmvfc, lpfc, smartpqi,
  hisi_sas, qedi, qedf, mpt3sas) and minor bug fixes.

  There are only three core changes: adding sense codes, cleaning up
  noretry and adding an option for limitless retries"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (226 commits)
  scsi: hisi_sas: Recover PHY state according to the status before reset
  scsi: hisi_sas: Filter out new PHY up events during suspend
  scsi: hisi_sas: Add device link between SCSI devices and hisi_hba
  scsi: hisi_sas: Add check for methods _PS0 and _PR0
  scsi: hisi_sas: Add controller runtime PM support for v3 hw
  scsi: hisi_sas: Switch to new framework to support suspend and resume
  scsi: hisi_sas: Use hisi_hba->cq_nvecs for calling calling synchronize_irq()
  scsi: qedf: Remove redundant assignment to variable 'rc'
  scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store()
  scsi: snic: Convert to use DEFINE_SEQ_ATTRIBUTE macro
  scsi: qla4xxx: Delete unneeded variable 'status' in qla4xxx_process_ddb_changed
  scsi: sun_esp: Use module_platform_driver to simplify the code
  scsi: sun3x_esp: Use module_platform_driver to simplify the code
  scsi: sni_53c710: Use module_platform_driver to simplify the code
  scsi: qlogicpti: Use module_platform_driver to simplify the code
  scsi: mac_esp: Use module_platform_driver to simplify the code
  scsi: jazz_esp: Use module_platform_driver to simplify the code
  scsi: mvumi: Fix error return in mvumi_io_attach()
  scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req()
  scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs()
  ...
2020-10-14 15:15:35 -07:00
Kashyap Desai
103fbf8e40 scsi: megaraid_sas: Added support for shared host tagset for cpuhotplug
Fusion adapters can steer completions to individual queues, and
we now have support for shared host-wide tags.
So we can enable multiqueue support for fusion adapters.

Once driver enable shared host-wide tags, cpu hotplug feature is also
supported as it was enabled using below patchsets -
commit bf0beec060 ("blk-mq: drain I/O when all CPUs in a hctx are
offline")

Currently driver has provision to disable host-wide tags using
"host_tagset_enable" module parameter.

Once we do not have any major performance regression using host-wide
tags, we will drop the hand-crafted interrupt affinity settings.

Performance is also meeting the expecatation - (used both none and
mq-deadline scheduler)
24 Drive SSD on Aero with/without this patch can get 3.1M IOPs
3 VDs consist of 8 SAS SSD on Aero with/without this patch can get 3.1M
IOPs.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Douglas Gilbert <dgilbert@interlog.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-06 08:33:44 -06:00
Jason Yan
62aa501dc9 scsi: megaraid: Make smp_affinity_enable static
This addresses the following sparse warning:

drivers/scsi/megaraid/megaraid_sas_base.c:80:5: warning: symbol
'smp_affinity_enable' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20200915083948.2826598-1-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-15 18:07:31 -04:00
Linus Torvalds
d6dc7e0682 SCSI fixes on 20200908
Eleven fixes, mostly in drivers or minor fixes in driver related
 infrastructure libraries (target, libfc and libsas).  Most of the bugs
 fixed only show up under rare circumstances, the exception being the
 endianness problem in qla2xxx which is used as a device on some sparc
 systems.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Eleven fixes, mostly in drivers or minor fixes in driver related
  infrastructure libraries (target, libfc and libsas).

  Most of the bugs fixed only show up under rare circumstances, the
  exception being the endianness problem in qla2xxx which is used as a
  device on some sparc systems"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mpt3sas: Don't call disable_irq from IRQ poll handler
  scsi: megaraid_sas: Don't call disable_irq from process IRQ poll
  scsi: target: iscsi: Fix hang in iscsit_access_np() when getting tpg->np_login_sem
  scsi: libsas: Set data_dir as DMA_NONE if libata marks qc as NODATA
  scsi: target: iscsi: Fix data digest calculation
  scsi: lpfc: Update lpfc version to 12.8.0.4
  scsi: lpfc: Extend the RDF FPIN Registration descriptor for additional events
  scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery
  scsi: lpfc: Fix setting IRQ affinity with an empty CPU mask
  scsi: qla2xxx: Fix regression on sparc64
  scsi: libfc: Fix for double free()
  scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort
2020-09-08 11:42:58 -07:00
Tomas Henzl
d2af39141e scsi: megaraid_sas: Don't call disable_irq from process IRQ poll
disable_irq() might sleep. Replace it with disable_irq_nosync() which is
sufficient as irq_poll_scheduled protects against concurrently running
complete_cmd_fusion() from megasas_irqpoll() and megasas_isr_fusion().

Link: https://lore.kernel.org/r/20200827165332.8432-1-thenzl@redhat.com
Fixes: a6ffd5bf68 scsi: megaraid_sas: Call disable_irq from process IRQ poll
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-02 21:59:44 -04:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Linus Torvalds
dfdf16ecfd SCSI misc on 20200806
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
 lpfc, hpsa, zfcp, scsi_debug) and minor bug fixes.  We also have a
 huge docbook fix update like most other subsystems and no major update
 to the core (the few non trivial updates are either minor fixes or
 removing an unused feature [scsi_sdb_cache]).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This consists of the usual driver updates (ufs, qla2xxx, tcmu, lpfc,
  hpsa, zfcp, scsi_debug) and minor bug fixes.

  We also have a huge docbook fix update like most other subsystems and
  no major update to the core (the few non trivial updates are either
  minor fixes or removing an unused feature [scsi_sdb_cache])"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (307 commits)
  scsi: scsi_transport_srp: Sanitize scsi_target_block/unblock sequences
  scsi: ufs-mediatek: Apply DELAY_AFTER_LPM quirk to Micron devices
  scsi: ufs: Introduce device quirk "DELAY_AFTER_LPM"
  scsi: virtio-scsi: Correctly handle the case where all LUNs are unplugged
  scsi: scsi_debug: Implement tur_ms_to_ready parameter
  scsi: scsi_debug: Fix request sense
  scsi: lpfc: Fix typo in comment for ULP
  scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
  scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
  scsi: hpsa: Correct ctrl queue depth
  scsi: target: tcmu: Make TMR notification optional
  scsi: target: tcmu: Implement tmr_notify callback
  scsi: target: tcmu: Fix and simplify timeout handling
  scsi: target: tcmu: Factor out new helper ring_insert_padding
  scsi: target: tcmu: Do not queue aborted commands
  scsi: target: tcmu: Use priv pointer in se_cmd
  scsi: target: Add tmr_notify backend function
  scsi: target: Modify core_tmr_abort_task()
  scsi: target: iscsi: Fix inconsistent debug message
  scsi: target: iscsi: Fix login error when receiving
  ...
2020-08-06 16:50:07 -07:00
Tomas Henzl
1eb81df5c5 scsi: megaraid_sas: Clear affinity hint
To avoid a warning in free_irq, clear the affinity hint.

Link: https://lore.kernel.org/r/20200709133144.8363-1-thenzl@redhat.com
Fixes: f0b9e7bdc3 ("scsi: megaraid_sas: Set affinity for high IOPS reply queues")
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:09:54 -04:00
Chandrakanth Patil
07d3f04550 scsi: megaraid_sas: Remove undefined ENABLE_IRQ_POLL macro
As the ENABLE_IRQ_POLL macro is undefined, the check for ENABLE_IRQ_POLL
macro in ISR will always be false. This leads to irq polling being
non-functional.

Remove ENABLE_IRQ_POLL check from ISR.

Link: https://lore.kernel.org/r/20200715120153.20512-1-chandrakanth.patil@broadcom.com
Fixes: a6ffd5bf68 ("scsi: megaraid_sas: Call disable_irq from process IRQ")
Cc: <stable@vger.kernel.org> # v5.3+
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 16:16:45 -04:00
Damien Le Moal
97eec79f6c scsi: megaraid: Remove set but unused variable
The variable remainder is unused in mega_div64_32(). Remove it to avoid a
compiler warning. While at it, also fix the function documentation
comments.

Link: https://lore.kernel.org/r/20200706123348.451871-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08 01:02:11 -04:00
Damien Le Moal
7b3c103508 scsi: megaraid: Fix compilation warnings
Move function declarations to megaraid_sas.h to avoid warnings such as:

	warning: no previous prototype for ‘xxx'

No functional changes.

Link: https://lore.kernel.org/r/20200706123346.451827-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08 01:01:30 -04:00
Damien Le Moal
2b46e5c142 scsi: megaraid: Fix kdoc comments format
Fix kernel documentation comments to avoid various warnings when compiling
with W=1.

No functional changes.

Link: https://lore.kernel.org/r/20200706123345.451783-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08 01:00:30 -04:00
Chandrakanth Patil
c1bb43e23c scsi: megaraid_sas: Update driver version to 07.714.04.00-rc1
Link: https://lore.kernel.org/r/20200508085314.23461-1-chandrakanth.patil@broadcom.com
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11 23:06:24 -04:00
Sumit Saxena
6fd8525a70 scsi: megaraid_sas: TM command refire leads to controller firmware crash
When TM command times out, driver invokes the controller reset. Post reset,
driver re-fires pended TM commands which leads to firmware crash.

Post controller reset, return pended TM commands back to OS.

Link: https://lore.kernel.org/r/20200508085242.23406-1-chandrakanth.patil@broadcom.com
Cc: stable@vger.kernel.org
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11 23:06:24 -04:00
Shivasharan S
b9d5e3e7f3 scsi: megaraid_sas: Replace undefined MFI_BIG_ENDIAN macro with __BIG_ENDIAN_BITFIELD macro
MFI_BIG_ENDIAN macro used in drivers structure bitfield to check the CPU
big endianness is undefined which would break the code on big endian
machine. __BIG_ENDIAN_BITFIELD kernel macro should be used in places of
MFI_BIG_ENDIAN macro.

Link: https://lore.kernel.org/r/20200508085130.23339-1-chandrakanth.patil@broadcom.com
Fixes: a7faf81d78 ("scsi: megaraid_sas: Set no_write_same only for Virtual Disk")
Cc: <stable@vger.kernel.org> # v5.6+
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11 23:06:24 -04:00
Sumit Saxena
84badfab0d scsi: megaraid_sas: Remove IO buffer hole detection logic
As blk_queue_virt_boundary() API in slave_configure ensures that no IOs
will come with holes/gaps. Hence, code logic to detect the holes/gaps in IO
buffer is not required.

Link: https://lore.kernel.org/r/20200508083838.22778-3-chandrakanth.patil@broadcom.com
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11 23:06:23 -04:00
Kashyap Desai
6c205a66d6 scsi: megaraid_sas: Limit device queue depth to controller queue depth
The driver currently assigns a pre-defined queue depth when the
firmware-provided device queue depth is greater than the controller queue
depth.

Use the controller queue depth if the reported target queue depth is too
large.

Link: https://lore.kernel.org/r/20200508083838.22778-2-chandrakanth.patil@broadcom.com
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11 23:06:23 -04:00