Commit Graph

577 Commits

Author SHA1 Message Date
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
Martin K. Petersen
11e50ed239 Merge branch '5.19/scsi-fixes' into 5.20/scsi-staging
Bring in fixes to resolve a merge conflict in the lpfc driver update.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07 17:20:43 -04:00
Bart Van Assche
88f1669019 scsi: sd: Rework asynchronous resume support
For some technologies, e.g. an ATA bus, resuming can take multiple
seconds. Waiting for resume to finish can cause a very noticeable delay.
Hence this commit that restores the behavior from before "scsi: core: pm:
Rely on the device driver core for async power management" for most SCSI
devices.

This commit introduces a behavior change: if the START command fails, do
not consider this as a SCSI disk resume failure.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215880
Link: https://lore.kernel.org/r/20220630195703.10155-3-bvanassche@acm.org
Fixes: a19a93e4c6 ("scsi: core: pm: Rely on the device driver core for async power management")
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: John Garry <john.garry@huawei.com>
Cc: ericspero@icloud.com
Cc: jason600.groome@gmail.com
Tested-by: jason600.groome@gmail.com
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07 17:06:39 -04:00
Christoph Hellwig
6b2bd27474 block: pass a gendisk to blk_queue_set_zoned
Prepare for storing the zone related field in struct gendisk instead
of struct request_queue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220706070350.1703384-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-06 06:46:26 -06:00
Christoph Hellwig
6f8191fdf4 block: simplify disk shutdown
Set the queue dying flag and call blk_mq_exit_queue from del_gendisk for
all disks that do not have separately allocated queues, and thus remove
the need to call blk_cleanup_queue for them.

Rename blk_cleanup_disk to blk_mq_destroy_queue to make it clear that
this function is intended only for separately allocated blk-mq queues.

This saves an extra queue freeze for devices without a separately
allocated queue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-06-28 06:30:26 -06:00
Tyler Erickson
f92de9d110 scsi: sd: Fix interpretation of VPD B9h length
Fixing the interpretation of the length of the B9h VPD page (Concurrent
Positioning Ranges). Adding 4 is necessary as the first 4 bytes of the page
is the header with page number and length information.  Adding 3 was likely
a misinterpretation of the SBC-5 specification which sets all offsets
starting at zero.

This fixes the error in dmesg:

[ 9.014456] sd 1:0:0:0: [sda] Invalid Concurrent Positioning Ranges VPD page

Link: https://lore.kernel.org/r/20220602225113.10218-4-tyler.erickson@seagate.com
Fixes: e815d36548 ("scsi: sd: add concurrent positioning ranges support")
Cc: stable@vger.kernel.org
Tested-by: Michael English <michael.english@seagate.com>
Reviewed-by: Muhammad Ahmad <muhammad.ahmad@seagate.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tyler Erickson <tyler.erickson@seagate.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-07 21:26:29 -04:00
Linus Torvalds
b2c9a83d26 SCSI misc on 20220604
Mostly small bug fixes plus other trivial updates.  The major change
 of note is moving ufs out of scsi and a minor update to lpfc vmid
 handling.
 
 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 plus other trivial updates.

  The major change of note is moving ufs out of scsi and a minor update
  to lpfc vmid handling"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (24 commits)
  scsi: qla2xxx: Remove unused 'ql_dm_tgt_ex_pct' parameter
  scsi: qla2xxx: Remove setting of 'req' and 'rsp' parameters
  scsi: mpi3mr: Fix kernel-doc
  scsi: lpfc: Add support for ATTO Fibre Channel devices
  scsi: core: Return BLK_STS_TRANSPORT for ALUA transitioning
  scsi: sd_zbc: Prevent zone information memory leak
  scsi: sd: Fix potential NULL pointer dereference
  scsi: mpi3mr: Rework mrioc->bsg_device model to fix warnings
  scsi: myrb: Fix up null pointer access on myrb_cleanup()
  scsi: core: Unexport scsi_bus_type
  scsi: sd: Don't call blk_cleanup_disk() in sd_probe()
  scsi: ufs: ufshcd: Delete unnecessary NULL check
  scsi: isci: Fix typo in comment
  scsi: pmcraid: Fix typo in comment
  scsi: smartpqi: Fix typo in comment
  scsi: qedf: Fix typo in comment
  scsi: esas2r: Fix typo in comment
  scsi: storvsc: Fix typo in comment
  scsi: ufs: Split the drivers/scsi/ufs directory
  scsi: qla1280: Remove redundant variable
  ...
2022-06-05 09:25:12 -07:00
Damien Le Moal
30c4fdc3dc scsi: sd_zbc: Prevent zone information memory leak
Make sure to always free a scsi disk zone information, even for regular
disks. This ensures that there is no memory leak, even in the case of a
zoned disk changing type to a regular disk (e.g. with a reformat using the
FORMAT WITH PRESET command or other vendor proprietary command).

To do this, rename sd_zbc_clear_zone_info() to sd_zbc_free_zone_info() and
remove sd_zbc_release_disk(). A call to sd_zbc_free_zone_info() is added to
sd_zbc_read_zones() for drives for which sd_is_zoned() returns
false. Furthermore, sd_zbc_free_zone_info() code make s sure that the sdkp
rev_mutex is never used while not being initialized by gating the cleanup
code with a a check on the zone_wp_update_buf field as it is never NULL
when rev_mutex has been initialized.

Link: https://lore.kernel.org/r/20220601062544.905141-3-damien.lemoal@opensource.wdc.com
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-01 22:36:44 -04:00
Damien Le Moal
05fbde3a77 scsi: sd: Fix potential NULL pointer dereference
If sd_probe() sees an early error before sdkp->device is initialized,
sd_zbc_release_disk() is called. This causes a NULL pointer dereference
when sd_is_zoned() is called inside that function. Avoid this by removing
the call to sd_zbc_release_disk() in sd_probe() error path.

This change is safe and does not result in zone information memory leakage
because the zone information for a zoned disk is allocated only when
sd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set,
resulting in sd_disk_release() being called when needed to cleanup a disk
zone information using sd_zbc_release_disk().

Link: https://lore.kernel.org/r/20220601062544.905141-2-damien.lemoal@opensource.wdc.com
Fixes: 89d9475610 ("sd: Implement support for ZBC devices")
Reported-by: Dongliang Mu <mudongliangabcd@gmail.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-01 22:36:44 -04:00
Linus Torvalds
fbe86daca0 SCSI misc on 20220524
This series consists of a small set of driver updates (lpfc, ufs,
 mpt3sas mpi3mr, iscsi target).  Apart from that this is mostly small
 fixes with very few core changes (the biggest one being VPD caching.
 
 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 a small set of driver updates (lpfc, ufs, mpt3sas
  mpi3mr, iscsi target). Apart from that this is mostly small fixes with
  very few core changes (the biggest one being VPD caching)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (177 commits)
  scsi: target: tcmu: Avoid holding XArray lock when calling lock_page
  scsi: elx: efct: Remove NULL check after calling container_of()
  scsi: dpt_i2o: Drop redundant spinlock initialization
  scsi: qedf: Remove redundant variable op
  scsi: hisi_sas: Fix memory ordering in hisi_sas_task_deliver()
  scsi: fnic: Replace DMA mask of 64 bits with 47 bits
  scsi: mpi3mr: Add target device related sysfs attributes
  scsi: mpi3mr: Add shost related sysfs attributes
  scsi: elx: efct: Remove redundant memset() statement
  scsi: megaraid_sas: Remove redundant memset() statement
  scsi: mpi3mr: Return error if dma_alloc_coherent() fails
  scsi: hisi_sas: Fix rescan after deleting a disk
  scsi: hisi_sas: Use sas_ata_wait_after_reset() in IT nexus reset
  scsi: libsas: Refactor sas_ata_hard_reset()
  scsi: mpt3sas: Update driver version to 42.100.00.00
  scsi: mpt3sas: Fix junk chars displayed while printing ChipName
  scsi: ipr: Use kobj_to_dev()
  scsi: mpi3mr: Fix a NULL vs IS_ERR() bug in mpi3mr_bsg_init()
  scsi: bnx2fc: Avoid using get_cpu() in bnx2fc_cmd_alloc()
  scsi: libfc: Remove get_cpu() semantics in fc_exch_em_alloc()
  ...
2022-05-25 19:09:48 -07:00
Christoph Hellwig
7274ce0558 scsi: sd: Don't call blk_cleanup_disk() in sd_probe()
In SCSI the midlayer has ownership of the request_queue, so on probe
failure we must only put the gendisk, but leave the request_queue alone.

Link: https://lore.kernel.org/r/20220523083813.227935-1-hch@lst.de
Fixes: 03252259e1 ("scsi: sd: Clean up gendisk if device_add_disk() failed")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-23 23:24:10 -04:00
Martin K. Petersen
1e029397d1 scsi: sd: Reorganize DIF/DIX code to avoid calling revalidate twice
During device discovery we ended up calling revalidate twice and thus
requested the same parameters multiple times. This was originally necessary
due to the request_queue and gendisk needing to be instantiated to
configure the block integrity profile.

Since this dependency no longer exists, reorganize the integrity probing
code so it can be run once at the end of discovery and drop the superfluous
revalidate call. Postponing the registration step involves splitting
sd_read_protection() into two functions, one to read the device protection
type and one to configure the mode of operation.

As part of this cleanup, make the printing code a bit less verbose.

Link: https://lore.kernel.org/r/20220302053559.32147-14-martin.petersen@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02 16:59:11 -04:00
Martin K. Petersen
631669a256 scsi: sd: Optimal I/O size should be a multiple of reported granularity
Commit a83da8a450 ("scsi: sd: Optimal I/O size should be a multiple of
physical block size") validated the reported optimal I/O size against the
physical block size to overcome problems with devices reporting nonsensical
transfer sizes.

However, some devices claim conformity to older SCSI versions that predate
the physical block size being reported. Other devices do not report a
physical block size at all. We need to be able to validate the optimal I/O
size on those devices as well.

Many devices report an OPTIMAL TRANSFER LENGTH GRANULARITY in the same VPD
page as the OPTIMAL TRANSFER LENGTH. Use this value to validate the optimal
I/O size. Also check that the reported granularity is a multiple of the
physical block size, if supported.

Link: https://lore.kernel.org/r/33fb522e-4f61-1b76-914f-c9e6a3553c9b@gmail.com
Link: https://lore.kernel.org/r/20220302053559.32147-9-martin.petersen@oracle.com
Reported-by: Bernhard Sulzer <micraft.b@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02 16:59:11 -04:00
Martin K. Petersen
7fb019c46e scsi: sd: Switch to using scsi_device VPD pages
Use the VPD pages already provided by the SCSI midlayer. No need to request
them individually in the SCSI disk driver.

Link: https://lore.kernel.org/r/20220302053559.32147-8-martin.petersen@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02 16:59:11 -04:00
Martin K. Petersen
e38d9e83a3 scsi: sd: Use cached ATA Information VPD page
Since the ATA Information VPD is now cached at device discovery time it is
no longer necessary to request this page when we configure WRITE SAME.
Instead use the cached information to determine if this disk sits behind a
SCSI-ATA translation layer.

Link: https://lore.kernel.org/r/20220302053559.32147-7-martin.petersen@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02 16:59:11 -04:00
Christoph Hellwig
70200574cc block: remove QUEUE_FLAG_DISCARD
Just use a non-zero max_discard_sectors as an indicator for discard
support, similar to what is done for write zeroes.

The only places where needs special attention is the RAID5 driver,
which must clear discard support for security reasons by default,
even if the default stacking rules would allow for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> [drbd]
Acked-by: Jan Höppner <hoeppner@linux.ibm.com> [s390]
Acked-by: Coly Li <colyli@suse.de> [bcache]
Acked-by: David Sterba <dsterba@suse.com> [btrfs]
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-25-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-17 19:49:59 -06:00
Wenchao Hao
03252259e1 scsi: sd: Clean up gendisk if device_add_disk() failed
We forgot to call blk_cleanup_disk() when device_add_disk() failed.  This
would cause a memory leak of gendisk and sched_tags allocated in
elevator_init_mq()

Reference:https://syzkaller.appspot.com/x/log.txt?x=13b41dcb700000
Reported-and-tested-by: syzbot+f08c77040fa163a75a46@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20220401011018.1026553-1-haowenchao@huawei.com
Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-06 22:37:49 -04:00
Martin K. Petersen
1700714b1f scsi: sd: sd_read_cpr() requires VPD pages
As such it should be called inside the scsi_device_supports_vpd()
conditional.

Link: https://lore.kernel.org/r/20220302053559.32147-13-martin.petersen@oracle.com
Fixes: e815d36548 ("scsi: sd: add concurrent positioning ranges support")
Cc: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-06 22:21:50 -04:00
Linus Torvalds
6f2689a766 SCSI misc on 20220324
This series consists of the usual driver updates (qla2xxx, pm8001,
 libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates
 and bug fixes.  The high blast radius core update is the removal of
 write same, which affects block and several non-SCSI devices.  The
 other big change, which is more local, is the removal of the SCSI
 pointer.
 
 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 (qla2xxx, pm8001,
  libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates
  and bug fixes.

  The high blast radius core update is the removal of write same, which
  affects block and several non-SCSI devices. The other big change,
  which is more local, is the removal of the SCSI pointer"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (281 commits)
  scsi: scsi_ioctl: Drop needless assignment in sg_io()
  scsi: bsg: Drop needless assignment in scsi_bsg_sg_io_fn()
  scsi: lpfc: Copyright updates for 14.2.0.0 patches
  scsi: lpfc: Update lpfc version to 14.2.0.0
  scsi: lpfc: SLI path split: Refactor BSG paths
  scsi: lpfc: SLI path split: Refactor Abort paths
  scsi: lpfc: SLI path split: Refactor SCSI paths
  scsi: lpfc: SLI path split: Refactor CT paths
  scsi: lpfc: SLI path split: Refactor misc ELS paths
  scsi: lpfc: SLI path split: Refactor VMID paths
  scsi: lpfc: SLI path split: Refactor FDISC paths
  scsi: lpfc: SLI path split: Refactor LS_RJT paths
  scsi: lpfc: SLI path split: Refactor LS_ACC paths
  scsi: lpfc: SLI path split: Refactor the RSCN/SCR/RDF/EDC/FARPR paths
  scsi: lpfc: SLI path split: Refactor PLOGI/PRLI/ADISC/LOGO paths
  scsi: lpfc: SLI path split: Refactor base ELS paths and the FLOGI path
  scsi: lpfc: SLI path split: Introduce lpfc_prep_wqe
  scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4
  scsi: lpfc: SLI path split: Refactor lpfc_iocbq
  scsi: lpfc: Use kcalloc()
  ...
2022-03-24 19:37:53 -07:00
Christoph Hellwig
9c63f7f6ff sd: implement ->free_disk to simplify refcounting
Implement the ->free_disk method to to put struct scsi_disk when the last
gendisk reference count goes away.  This removes the need to clear
->private_data and thus freeze the queue on unbind.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220308055200.735835-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08 19:40:01 -07:00
Christoph Hellwig
534cf52aa9 sd: delay calling free_opal_dev
Call free_opal_dev from scsi_disk_release as the opal_dev field is accessed
from the ioctl handler, which isn't synchronized vs sd_release and thus
can be accessed during or after sd_release was called.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220308055200.735835-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08 19:40:01 -07:00
Christoph Hellwig
c76c46fa04 sd: call sd_zbc_release_disk before releasing the scsi_device reference
sd_zbc_release_disk accesses disk->device, so ensure that actually still has
a valid reference.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220308055200.735835-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08 19:40:01 -07:00
Christoph Hellwig
fad45c3007 sd: rename the scsi_disk.dev field
dev is very hard to grep for.  Give the field a more descriptive name and
documents its purpose.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220308055200.735835-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08 19:40:00 -07:00
Christoph Hellwig
e7f7655227 scsi: don't use disk->private_data to find the scsi_driver
Requiring every ULP to have the scsi_drive as first member of the
private data is rather fragile and not necessary anyway.  Just use
the driver hanging off the SCSI device instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220308055200.735835-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08 19:40:00 -07:00
Adrian Hunter
af4edb1d50 scsi: core: sd: Add silence_suspend flag to suppress some PM messages
Kernel messages produced during runtime PM can cause a never-ending cycle
because user space utilities (e.g. journald or rsyslog) write the messages
back to storage, causing runtime resume, more messages, and so on.

Messages that tell of things that are expected to happen are arguably
unnecessary, so add a flag to suppress them. This flag is used by the UFS
driver.

Link: https://lore.kernel.org/r/20220228113652.970857-2-adrian.hunter@intel.com
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-01 23:56:29 -05:00
Christoph Hellwig
ce70fd9a55 scsi: core: Remove the cmd field from struct scsi_request
Now that each scsi_request is backed by a scsi_cmnd, there is no need to
indirect the CDB storage.  Change all submitters of SCSI passthrough
requests to store the CDB information directly in the scsi_cmnd, and while
doing so allocate the full 32 bytes that cover all Linux supported SCSI
hosts instead of requiring dynamic allocation for > 16 byte CDBs.  On
64-bit systems this does not change the size of the scsi_cmnd at all, while
on 32-bit systems it slightly increases it for now, but that increase will
be made up by the removal of the remaining scsi_request fields.

Link: https://lore.kernel.org/r/20220224175552.988286-4-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-01 22:21:49 -05:00
Christoph Hellwig
e383e16e84 scsi: sd: Remove WRITE_SAME support
There are no more end-users of REQ_OP_WRITE_SAME left, so we can start
deleting it.

Link: https://lore.kernel.org/r/20220209082828.2629273-5-hch@lst.de
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22 21:11:08 -05:00
Christoph Hellwig
322cbb50de block: remove genhd.h
There is no good reason to keep genhd.h separate from the main blkdev.h
header that includes it.  So fold the contents of genhd.h into blkdev.h
and remove genhd.h entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220124093913.742411-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-02-02 07:49:59 -07:00
Linus Torvalds
369af20a2c SCSI misc on 20220121
This series is all the stragglers that didn't quite make the first
 merge window pull.  It's mostly minor updates and bug fixes of merge
 window code.
 
 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:
 "This series is all the stragglers that didn't quite make the first
  merge window pull. It's mostly minor updates and bug fixes of merge
  window code"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: nsp_cs: Check of ioremap return value
  scsi: ufs: ufs-mediatek: Fix error checking in ufs_mtk_init_va09_pwr_ctrl()
  scsi: ufs: Modify Tactive time setting conditions
  scsi: efct: Remove useless DMA-32 fallback configuration
  scsi: message: fusion: mptctl: Use dma_alloc_coherent()
  scsi: message: fusion: mptsas: Use dma_alloc_coherent()
  scsi: message: fusion: Use dma_alloc_coherent() in mptsas_exp_repmanufacture_info()
  scsi: message: fusion: mptbase: Use dma_alloc_coherent()
  scsi: message: fusion: Use dma_alloc_coherent() in mpt_alloc_fw_memory()
  scsi: message: fusion: Remove usage of the deprecated "pci-dma-compat.h" API
  scsi: megaraid: Avoid mismatched storage type sizes
  scsi: hisi_sas: Remove unused variable and check in hisi_sas_send_ata_reset_each_phy()
  scsi: aic79xx: Remove redundant error variable
  scsi: pm80xx: Port reset timeout error handling correction
  scsi: mpi3mr: Fix formatting problems in some kernel-doc comments
  scsi: mpi3mr: Fix some spelling mistakes
  scsi: mpt3sas: Update persistent trigger pages from sysfs interface
  scsi: core: Fix scsi_mode_select() interface
  scsi: aacraid: Fix spelling of "its"
  scsi: qedf: Fix potential dereference of NULL pointer
2022-01-22 10:24:02 +02:00
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
Damien Le Moal
81d3f500ee scsi: core: Fix scsi_mode_select() interface
The modepage argument is unused. Remove it.

Link: https://lore.kernel.org/r/20210929091744.706003-3-damien.lemoal@wdc.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-05 00:26:08 -05:00
Bart Van Assche
db33028647 scsi: Remove superfluous #include <linux/async.h> directives
Remove this include directive from code that does not use any functionality
from kernel/async.c.

Link: https://lore.kernel.org/r/20211129194609.3466071-13-bvanassche@acm.org
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-29 23:02:15 -05:00
Christoph Hellwig
a30e344132 scsi: remove the gendisk argument to scsi_ioctl
Now that blk_execute_rq does not take a gendisk argument there is no need
to pass it through the scsi_ioctl callchain either.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20211126121802.2090656-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-29 06:41:29 -07:00
Christoph Hellwig
f3fa33acca block: remove the ->rq_disk field in struct request
Just use the disk attached to the request_queue instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20211126121802.2090656-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-29 06:41:29 -07:00
Christoph Hellwig
1ebe2e5f9d block: remove GENHD_FL_EXT_DEVT
All modern drivers can support extra partitions using the extended
dev_t.  In fact except for the ioctl method drivers never even see
partitions in normal operation.

So remove the GENHD_FL_EXT_DEVT and allow extra partitions for all
block devices that do support partitions, and require those that
do not support partitions to explicit disallow them using
GENHD_FL_NO_PART.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211122130625.1136848-12-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-29 06:38:35 -07:00
Linus Torvalds
fe91c4725a SCSI misc on 20211105
This series consists of the usual driver updates (ufs, smartpqi, lpfc,
 target, megaraid_sas, hisi_sas, qla2xxx) and minor updates and bug
 fixes.  Notable core changes are the removal of scsi->tag which caused
 some churn in obsolete drivers and a sweep through all drivers to call
 scsi_done() directly instead of scsi->done() which removes a pointer
 indirection from the hot path and a move to register core sysfs files
 earlier, which means they're available to KOBJ_ADD processing, which
 necessitates switching all drivers to using attribute groups.
 
 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, smartpqi, lpfc,
  target, megaraid_sas, hisi_sas, qla2xxx) and minor updates and bug
  fixes.

  Notable core changes are the removal of scsi->tag which caused some
  churn in obsolete drivers and a sweep through all drivers to call
  scsi_done() directly instead of scsi->done() which removes a pointer
  indirection from the hot path and a move to register core sysfs files
  earlier, which means they're available to KOBJ_ADD processing, which
  necessitates switching all drivers to using attribute groups"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
  scsi: lpfc: Update lpfc version to 14.0.0.3
  scsi: lpfc: Allow fabric node recovery if recovery is in progress before devloss
  scsi: lpfc: Fix link down processing to address NULL pointer dereference
  scsi: lpfc: Allow PLOGI retry if previous PLOGI was aborted
  scsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine
  scsi: lpfc: Correct sysfs reporting of loop support after SFP status change
  scsi: lpfc: Wait for successful restart of SLI3 adapter during host sg_reset
  scsi: lpfc: Revert LOG_TRACE_EVENT back to LOG_INIT prior to driver_resource_setup()
  scsi: ufs: ufshcd-pltfrm: Fix memory leak due to probe defer
  scsi: ufs: mediatek: Avoid sched_clock() misuse
  scsi: mpt3sas: Make mpt3sas_dev_attrs static
  scsi: scsi_transport_sas: Add 22.5 Gbps link rate definitions
  scsi: target: core: Stop using bdevname()
  scsi: aha1542: Use memcpy_{from,to}_bvec()
  scsi: sr: Add error handling support for add_disk()
  scsi: sd: Add error handling support for add_disk()
  scsi: target: Perform ALUA group changes in one step
  scsi: target: Replace lun_tg_pt_gp_lock with rcu in I/O path
  scsi: target: Fix alua_tg_pt_gps_count tracking
  scsi: target: Fix ordered tag handling
  ...
2021-11-05 08:42:02 -07:00
Linus Torvalds
71ae42629e for-5.16/passthrough-flag-2021-10-29
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Merge tag 'for-5.16/passthrough-flag-2021-10-29' of git://git.kernel.dk/linux-block

Pull QUEUE_FLAG_SCSI_PASSTHROUGH removal from Jens Axboe:
 "This contains a series leading to the removal of the
  QUEUE_FLAG_SCSI_PASSTHROUGH queue flag"

* tag 'for-5.16/passthrough-flag-2021-10-29' of git://git.kernel.dk/linux-block:
  block: remove blk_{get,put}_request
  block: remove QUEUE_FLAG_SCSI_PASSTHROUGH
  block: remove the initialize_rq_fn blk_mq_ops method
  scsi: add a scsi_alloc_request helper
  bsg-lib: initialize the bsg_job in bsg_transport_sg_io_fn
  nfsd/blocklayout: use ->get_unique_id instead of sending SCSI commands
  sd: implement ->get_unique_id
  block: add a ->get_unique_id method
2021-11-01 10:12:44 -07:00
Linus Torvalds
fcaec17b36 for-5.16/scsi-ma-2021-10-29
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Merge tag 'for-5.16/scsi-ma-2021-10-29' of git://git.kernel.dk/linux-block

Pull SCSI multi-actuator support from Jens Axboe:
 "This adds SCSI support for the recently merged block multi-actuator
  support. Since this was sitting on top of the block tree, the SCSI
  side asked me to queue it up."

* tag 'for-5.16/scsi-ma-2021-10-29' of git://git.kernel.dk/linux-block:
  doc: Fix typo in request queue sysfs documentation
  doc: document sysfs queue/independent_access_ranges attributes
  libata: support concurrent positioning ranges log
  scsi: sd: add concurrent positioning ranges support
2021-11-01 10:07:26 -07:00
Linus Torvalds
33c8846c81 for-5.16/block-2021-10-29
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Merge tag 'for-5.16/block-2021-10-29' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - mq-deadline accounting improvements (Bart)

 - blk-wbt timer fix (Andrea)

 - Untangle the block layer includes (Christoph)

 - Rework the poll support to be bio based, which will enable adding
   support for polling for bio based drivers (Christoph)

 - Block layer core support for multi-actuator drives (Damien)

 - blk-crypto improvements (Eric)

 - Batched tag allocation support (me)

 - Request completion batching support (me)

 - Plugging improvements (me)

 - Shared tag set improvements (John)

 - Concurrent queue quiesce support (Ming)

 - Cache bdev in ->private_data for block devices (Pavel)

 - bdev dio improvements (Pavel)

 - Block device invalidation and block size improvements (Xie)

 - Various cleanups, fixes, and improvements (Christoph, Jackie,
   Masahira, Tejun, Yu, Pavel, Zheng, me)

* tag 'for-5.16/block-2021-10-29' of git://git.kernel.dk/linux-block: (174 commits)
  blk-mq-debugfs: Show active requests per queue for shared tags
  block: improve readability of blk_mq_end_request_batch()
  virtio-blk: Use blk_validate_block_size() to validate block size
  loop: Use blk_validate_block_size() to validate block size
  nbd: Use blk_validate_block_size() to validate block size
  block: Add a helper to validate the block size
  block: re-flow blk_mq_rq_ctx_init()
  block: prefetch request to be initialized
  block: pass in blk_mq_tags to blk_mq_rq_ctx_init()
  block: add rq_flags to struct blk_mq_alloc_data
  block: add async version of bio_set_polled
  block: kill DIO_MULTI_BIO
  block: kill unused polling bits in __blkdev_direct_IO()
  block: avoid extra iter advance with async iocb
  block: Add independent access ranges support
  blk-mq: don't issue request directly in case that current is to be blocked
  sbitmap: silence data race warning
  blk-cgroup: synchronize blkg creation against policy deactivation
  block: refactor bio_iov_bvec_set()
  block: add single bio async direct IO helper
  ...
2021-11-01 09:19:50 -07:00
Damien Le Moal
e815d36548 scsi: sd: add concurrent positioning ranges support
Add the sd_read_cpr() function to the sd scsi disk driver to discover
if a device has multiple concurrent positioning ranges (i.e. multiple
actuators on an HDD). The existence of VPD page B9h indicates if a
device has multiple concurrent positioning ranges. The page content
describes each range supported by the device.

sd_read_cpr() is called from sd_revalidate_disk() and uses the block
layer functions disk_alloc_independent_access_ranges() and
disk_set_independent_access_ranges() to represent the set of actuators
of the device as independent access ranges.

The format of the Concurrent Positioning Ranges VPD page B9h is defined
in section 6.6.6 of SBC-5.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20211027022223.183838-3-damien.lemoal@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-26 21:01:48 -06:00
Christoph Hellwig
b83ce214af sd: implement ->get_unique_id
Add the method to query for a uniqueue ID of a given type by looking
it up in the cached device identification VPD page.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20211021060607.264371-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-22 08:33:57 -06:00
Luis Chamberlain
2a7a891f4c scsi: sd: Add error handling support for add_disk()
We never checked for errors on add_disk() as this function returned
void. Now that this is fixed, use the shiny new error handling.

As with the error handling for device_add() we follow the same logic and
just put the device so that cleanup is done via the scsi_disk_release().

Link: https://lore.kernel.org/r/20211015233028.2167651-2-mcgrof@kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-18 22:51:34 -04:00
Martin Kepplinger
c4da120575 scsi: sd: Print write through due to no caching mode page as warning
For SD cardreaders it is extremely common not to have a cache.
Consequently, the following messages do not point to a real error one could
try to fix but rather describe how the disk works:

  sd 0:0:0:0: [sda] No Caching mode page found
  sd 0:0:0:0: [sda] Assuming drive cache: write through

Print these messages as warnings instead of errors.

Link: https://lore.kernel.org/r/20211013075050.3870354-1-martin.kepplinger@puri.sm
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-18 22:38:34 -04:00
Christoph Hellwig
b81e0c2372 block: drop unused includes in <linux/genhd.h>
Drop various include not actually used in genhd.h itself, and
move the remaning includes closer together.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20210920123328.1399408-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18 06:17:02 -06:00
Miles Chen
85374b6392 scsi: sd: Fix crashes in sd_resume_runtime()
After commit ed4246d37f ("scsi: sd: REQUEST SENSE for
BLIST_IGN_MEDIA_CHANGE devices in runtime_resume()"), the following crash
was observed.

static int sd_resume_runtime(struct device *dev)
{
        struct scsi_disk *sdkp = dev_get_drvdata(dev);
        struct scsi_device *sdp = sdkp->device; // sdkp == NULL and crash

        if (sdp->ignore_media_change) {
	...
}

It is possible for sdkp to be NULL in sd_resume_runtime(). To fix this
crash, follow sd_resume() to test if sdkp is NULL before dereferencing it.

Crash:
[    4.695171][  T151] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
[    4.696591][  T151] Mem abort info:
[    4.697919][  T151]   ESR = 0x96000005
[    4.699692][  T151]   EC = 0x25: DABT (current EL), IL = 32 bits
[    4.701990][  T151]   SET = 0, FnV = 0
[    4.702513][  T151]   EA = 0, S1PTW = 0
[    4.704431][  T151]   FSC = 0x05: level 1 translation fault
[    4.705254][  T151] Data abort info:
[    4.705806][  T151]   ISV = 0, ISS = 0x00000005
[    4.706484][  T151]   CM = 0, WnR = 0
[    4.707048][  T151] [0000000000000008] user address but active_mm is swapper
[    4.710577][  T151] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[    4.832361][  T151] Kernel Offset: 0x12acc80000 from 0xffffffc010000000
[    4.833254][  T151] PHYS_OFFSET: 0x40000000
[    4.833814][  T151] pstate: 80400005 (Nzcv daif +PAN -UAO)
[    4.834546][  T151] pc : sd_resume_runtime+0x20/0x14c
[    4.835227][  T151] lr : scsi_runtime_resume+0x84/0xe4
[    4.835916][  T151] sp : ffffffc0110db8d0
[    4.836450][  T151] x29: ffffffc0110db8d0 x28: 0000000000000001
[    4.837258][  T151] x27: ffffff80c0bd1ac0 x26: ffffff80c0bd1ad0
[    4.838063][  T151] x25: ffffff80cea7e448 x24: ffffffd2bf961000
[    4.838867][  T151] x23: ffffffd2be69f838 x22: ffffffd2bd9dfb4c
[    4.839670][  T151] x21: 0000000000000000 x20: ffffff80cea7e000
[    4.840474][  T151] x19: ffffff80cea7e260 x18: ffffffc0110dd078
[    4.841277][  T151] x17: 00000000658783d9 x16: 0000000051469dac
[    4.842081][  T151] x15: 00000000b87f6327 x14: 0000000068fd680d
[    4.842885][  T151] x13: ffffff80c0bd2470 x12: ffffffd2bfa7f5f0
[    4.843688][  T151] x11: 0000000000000078 x10: 0000000000000001
[    4.844492][  T151] x9 : 00000000000000b1 x8 : ffffffd2be69f88c
[    4.845295][  T151] x7 : ffffffd2bd9e0e5c x6 : 0000000000000000
[    4.846099][  T151] x5 : 0000000000000080 x4 : 0000000000000001
[    4.846902][  T151] x3 : 68fd680dfe4ebe5e x2 : 0000000000000003
[    4.847706][  T151] x1 : ffffffd2bf7f9380 x0 : ffffff80cea7e260
[    4.856708][  T151]  die+0x16c/0x59c
[    4.857191][  T151]  __do_kernel_fault+0x1e8/0x210
[    4.857833][  T151]  do_page_fault+0xa4/0x654
[    4.858418][  T151]  do_translation_fault+0x6c/0x1b0
[    4.859083][  T151]  do_mem_abort+0x68/0x10c
[    4.859655][  T151]  el1_abort+0x40/0x64
[    4.860182][  T151]  el1h_64_sync_handler+0x54/0x88
[    4.860834][  T151]  el1h_64_sync+0x7c/0x80
[    4.861395][  T151]  sd_resume_runtime+0x20/0x14c
[    4.862025][  T151]  scsi_runtime_resume+0x84/0xe4
[    4.862667][  T151]  __rpm_callback+0x1f4/0x8cc
[    4.863275][  T151]  rpm_resume+0x7e8/0xaa4
[    4.863836][  T151]  __pm_runtime_resume+0xa0/0x110
[    4.864489][  T151]  sd_probe+0x30/0x428
[    4.865016][  T151]  really_probe+0x14c/0x500
[    4.865602][  T151]  __driver_probe_device+0xb4/0x18c
[    4.866278][  T151]  driver_probe_device+0x60/0x2c4
[    4.866931][  T151]  __device_attach_driver+0x228/0x2bc
[    4.867630][  T151]  __device_attach_async_helper+0x154/0x21c
[    4.868398][  T151]  async_run_entry_fn+0x5c/0x1c4
[    4.869038][  T151]  process_one_work+0x3ac/0x590
[    4.869670][  T151]  worker_thread+0x320/0x758
[    4.870265][  T151]  kthread+0x2e8/0x35c
[    4.870792][  T151]  ret_from_fork+0x10/0x20

Link: https://lore.kernel.org/r/20211015074654.19615-1-miles.chen@mediatek.com
Fixes: ed4246d37f ("scsi: sd: REQUEST SENSE for BLIST_IGN_MEDIA_CHANGE devices in runtime_resume()")
Cc: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 22:25:23 -04:00
Bart Van Assche
9131bff6a9 scsi: core: pm: Only runtime resume if necessary
The following query shows which drivers define callbacks that are called by
the power management support code in the SCSI core (scsi_pm.c):

$ git grep -nHEwA16 "$(echo $(git grep -h 'scsi_register_driver(&' |
      sed 's/.*&//;s/\..*//') | sed 's/ /|/g')" |
    grep '\.pm[[:blank:]]*=[[:blank:]]'
drivers/scsi/sd.c-620-			.pm = &sd_pm_ops,
drivers/scsi/sr.c-100-			.pm = &sr_pm_ops,
drivers/scsi/ufs/ufshcd.c-9765-		.pm = &ufshcd_wl_pm_ops,

Since unconditionally runtime resuming a device during system resume is not
necessary, remove that code. Modify the SCSI disk (sd) driver such that it
follows the same approach as the UFS driver, namely to skip system suspend
and resume for devices that are runtime suspended. The CD-ROM code does not
need to be updated since its PM callbacks do not affect the device power
state.

This patch has been tested as follows:

[ shell 1 ]

cd /sys/kernel/debug/tracing
grep -E 'blk_(pre|post)_runtime|runtime_(suspend|resume)|autosuspend_delay|pm_runtime_(get|put)' available_filter_functions |
  while read a b; do echo "$a"; done |
  grep -v __pm_runtime_resume >set_ftrace_filter
echo function > current_tracer
echo 1 > tracing_on
cat trace_pipe

[ shell 2 ]

cd /sys/block/sr0
 # Increase the event poll interval to make it easier to derive from the
 # tracing output whether runtime power actions are the result of sg_inq.
echo 30000 > events_poll_msecs
cd device/power
 # Enable runtime power management.
echo auto > control
echo 1000 > autosuspend_delay_ms
sleep 1
 # Verify in shell 1 that sr0 has been runtime suspended
sg_inq /dev/sr0
eject /dev/sr0
sg_inq /dev/sr0
 # Disable runtime power management.
echo on > control

cd /sys/block/sda/device/power
echo auto > control
echo 1000 > autosuspend_delay_ms
sleep 1
 # Verify in shell 1 that sr0 has been runtime suspended
sg_inq /dev/sda

Link: https://lore.kernel.org/r/20211006215453.3318929-4-bvanassche@acm.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Martin Kepplinger <martin.kepplinger@puri.sm>
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:08:39 -04:00
Bart Van Assche
1c9575326a scsi: sd: Rename sd_resume() into sd_resume_system()
This patch does not change any functionality but makes the next patch in
this series easier to read.

Link: https://lore.kernel.org/r/20211006215453.3318929-3-bvanassche@acm.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:08:39 -04:00
Bart Van Assche
a19a93e4c6 scsi: core: pm: Rely on the device driver core for async power management
Instead of implementing asynchronous resume support in the SCSI core, rely
on the device driver core for resuming SCSI devices asynchronously.
Instead of only supporting asynchronous resumes, also support asynchronous
suspends.

Link: https://lore.kernel.org/r/20211006215453.3318929-2-bvanassche@acm.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:08:39 -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
Damien Le Moal
c749301ebe scsi: sd: Fix sd_do_mode_sense() buffer length handling
For devices that explicitly asked for MODE SENSE(10) use, make sure that
scsi_mode_sense() is called with a buffer of at least 8 bytes so that the
sense header fits.

Link: https://lore.kernel.org/r/20210820070255.682775-4-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-29 00:10:57 -04:00