Commit Graph

389 Commits

Author SHA1 Message Date
James Bottomley
2441500a41 Merge branch 'fixes' into misc 2017-09-07 12:12:43 -07:00
weiping zhang
5f800c87da scsi: sd: remove duplicated setting of gd->minors
gd->minors has been set when call alloc_disk() in sd_probe.

Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:26:08 -04:00
Bart Van Assche
830cc351bc scsi: sd: Remove a useless comparison
This patch avoids that gcc reports the following warning when
building with W=1:

drivers/scsi/sd.c:315:10: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
  if (val >= 0 && val <= T10_PI_TYPE3_PROTECTION)

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche
ed91f7ed38 scsi: sd: Fix indentation
This patch avoids that smatch reports the following:

drivers/scsi/sd.c:3540: sd_suspend_common() warn: inconsistent indenting

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche
0624cbb1e2 scsi: sd: sr: Convert two assignments into warning statements
Before scsi_prep_fn() calls the ULP .init_command() callback
function it stores the SCSI command pointer in request.special.
This means that the SCpnt = rq->special assignments in the sd
and sr drivers assign a pointer to itself. Hence convert these
two assignment statements into warning statements.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Damien Le Moal
70e42fd02c scsi: sd_zbc: Write unlock zone from sd_uninit_cmnd()
Releasing a zone write lock only when the write commnand that acquired
the lock completes can cause deadlocks due to potential command
reordering if the lock owning request is requeued and not executed. This
problem exists only with the scsi-mq path as, unlike the legacy path,
requests are moved out of the dispatch queue before being prepared and
so before locking a zone for a write command.

Since sd_uninit_cmnd() is now always called when a request is requeued,
call sd_zbc_write_unlock_zone() from that function for write requests
that acquired a zone lock instead of from sd_done(). Acquisition of a zone
lock by a write command is indicated using the new command
flag SCMD_ZONE_WRITE_LOCK.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <Bart.VanAssche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-16 20:01:31 -04:00
Linus Torvalds
9031114841 SCSI misc on 20170704
This is mostly updates of the usual suspects: lpfc, qla2xxx, bnx2fc,
 qedf, hpsa, hisi_sas, smartpqi, cxlflash, aacraid, csiostor along with
 a host of minor and miscellaneous changes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJZW7JMAAoJEAVr7HOZEZN4IM4P/AqBtvH+6Lo1Eb+3A/HnHskK
 hIxVxgBxaw3fhW5AegDfVCvrdVTTEkCB/g5CIKN8NCWEx6OGmCX0Lu6lnjld9BOZ
 cTlPtzNwFGlgHrz34LwCc3vlc5ovMpTQBrpGAQpGGWoAZIP+c3ilEihIYTEMNCsN
 dmjI71AigDE5g6X1OT361IJ1gydkjfG41IcRe/jlMtEgRNdy3B2JVIdATL89Pw4b
 0uZO3uUTn8EGEKUdyJZCNpie7sGZv8u2LhA+Znby2C4h3bwWNV/d0p7ped4xrQY5
 yVpZEUbYVdcOOYBgeBJlfwOhvjRQTdxeK4d7W9XTb+AQf30F3DgSepdMCdf3BjVt
 KnQvBOTxyidB8xsCL46wlxxNew3qoUtaKoY88WUOOnnJwU5U7hlRtPkf/eO2i5QF
 +k7fxUpFfkBTS4I2gXnyGWpmSoxwJerd0knojSOjrjJcAlcgM65+pocUAea/0Dpr
 SsfL2sTb12gk6bkF9UlRv8/4aSsWYb92WW1nbTt2nFRXncPNN5Qzc3lGj//36O+b
 2bka+aSKVAFoNAnQ1pUE8EJxSboy5q7y4509iZzO/Fom+pVuzBROm5fmrpcOE5dP
 IjW7gqSFB6578tnNiK049rrrPja5wkUa+Ptc8s0FjPAVyIDrp2RN+f2nljOBBhW8
 3Z1nXMG0eFqvb5taLtfZ
 =D9QX
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is mostly updates of the usual suspects: lpfc, qla2xxx, bnx2fc,
  qedf, hpsa, hisi_sas, smartpqi, cxlflash, aacraid, csiostor along with
  a host of minor and miscellaneous changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (276 commits)
  qla2xxx: Fix NVMe entry_type for iocb packet on BE system
  scsi: qla2xxx: avoid unused-function warning
  scsi: snic: fix a couple of spelling mistakes/typos
  scsi: qla2xxx: fix a bunch of typos and spelling mistakes
  scsi: lpfc: don't double count abort errors
  scsi: lpfc: spin_lock_irq() is not nestable
  scsi: hisi_sas: optimise DMA slot memory
  scsi: ibmvfc: constify dev_pm_ops structures.
  scsi: ibmvscsi: constify dev_pm_ops structures.
  scsi: cxlflash: Update debug prints in reset handlers
  scsi: cxlflash: Update send_tmf() parameters
  scsi: cxlflash: Avoid double free of character device
  scsi: Add STARGET_CREATED_REMOVE state to scsi_target_state
  scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails.
  scsi: ufs: flush eh_work when eh_work scheduled.
  scsi: qla2xxx: Protect access to qpair members with qpair->qp_lock
  scsi: sun_esp: fix device reference leaks
  scsi: fnic: changing queue command to return result DID_IMM_RETRY when rport is init
  scsi: fnic: correct speed display and add support for 25,40 and 100G
  scsi: fnic: added timestamp reporting in fnic debug stats
  ...
2017-07-06 12:10:33 -07:00
Linus Torvalds
109a5db504 Merge branch 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:

 - Christoph added support for TCG OPAL self encrypting disks

 - Minwoo added support for ATA PASS-THROUGH(32)

 - Linus Walleij removed spurious drvdata assignments in some drivers

 - Support for a few new device and other fixes

* 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (33 commits)
  sd: add support for TCG OPAL self encrypting disks
  libata: fix build warning from unused goto label
  libata: Support for an ATA PASS-THROUGH(32) command.
  ahci: Add Device ID for ASMedia 1061R and 1062R
  sata_via: Enable optional hotplug on VT6420
  ata: ahci_brcm: Avoid writing to read-only registers
  libata: Add the AHCI_HFLAG_NO_WRITE_TO_RO flag
  libata: Add the AHCI_HFLAG_YES_ALPM flag
  ata: ftide010: fix resource printing
  libata: make the function name in comment match the actual function
  ata: sata_rcar: make of_device_ids const.
  ata: pata_octeon_cf: make of_device_ids const.
  libata: Convert bare printks to pr_cont
  libahci: wrong comments in ahci_do_softreset()
  ata: declare ata_port_info structures as const
  ata: Add driver for Faraday Technology FTIDE010
  ata: Add DT bindings for the Gemini SATA bridge
  ata: Add DT bindings for Faraday Technology FTIDE010
  libata: implement SECURITY PROTOCOL IN/OUT
  libata: factor out a ata_identify_page_supported helper
  ...
2017-07-06 09:41:58 -07:00
Christoph Hellwig
d80210f25f sd: add support for TCG OPAL self encrypting disks
Just wire up the generic TCG OPAL infrastructure to the SCSI disk driver
and the Security In/Out commands.

Note that I don't know of any actual SCSI disks that do support TCG OPAL,
but this is required to support ATA disks through libata.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2017-06-29 10:21:15 -04:00
Martin K. Petersen
4c11712ad0 scsi: sd: Use sysfs_match_string()
Avoid unnecessary snprintf() when formatting variables for display in
sysfs and switch to sysfs_match_string() for validating user input.

Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-26 15:00:58 -04:00
Bart Van Assche
0db6ca8a5e scsi: Protect SCSI device state changes with a mutex
Serializing SCSI device state changes avoids that two state changes can
occur concurrently, e.g. the state changes in scsi_target_block() and
__scsi_remove_device(). This serialization is essential to make patch
"Make __scsi_remove_device go straight from BLOCKED to DEL" work
reliably.

Enable this mechanism for all scsi_target_*block() callers but not for
the scsi_internal_device_unblock() calls from the mpt3sas driver because
that driver can call scsi_internal_device_unblock() from atomic context.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-12 20:55:59 -04:00
Derek Basehore
4fa8324461 scsi: sd: Ignore sync cache failures when not supported
Some external hard drives don't support the sync command even though the
hard drive has write cache enabled. In this case, upon suspend request,
sync cache failures are ignored if the error code in the sense header is
ILLEGAL_REQUEST. There's not much we can do for these drives, so we
shouldn't fail to suspend for this error case. The drive may stay
powered if that's the setup for the port it's plugged into.

Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-05-16 21:07:24 -04:00
Damien Le Moal
ed44fd7fd8 scsi: sd: Write lock zone for REQ_OP_WRITE_ZEROES
For a zoned block device, sd_zbc_complete() handles zone write unlock on
completion of a REQ_OP_WRITE_ZEROES command but the zone write locking
is missing from sd_setup_write_zeroes_cmnd(). This patch fixes this
problem by locking the target zone of a REQ_OP_WRITE_ZEROES request.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-05-11 23:11:49 -04:00
Damien Le Moal
29f6ca6916 scsi: sd: Unlock zone in case of error in sd_setup_write_same_cmnd()
scsi_io_init() may fail, leaving a zone of a zoned block device locked.
Fix this by properly unlocking the write same request target zone if
scsi_io_init() fails.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-05-11 23:10:03 -04:00
Linus Torvalds
8d5e72dfdf SCSI misc on 20170503
This update includes the usual round of major driver updates
 (hisi_sas, ufs, fnic, cxlflash, be2iscsi, ipr, stex).  There's also
 the usual amount of cosmetic and spelling stuff.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJZClQkAAoJEAVr7HOZEZN4OmkP/j/JJx2ImGzTgil5S8yeSWPY
 5Gqb8IK9rCQ+OJgCZYCz3JsLZZnwY4ODZ9tC1lO/3he6VfjIhcEs2/eXbTnEfsZx
 D3EwWEVR3wYBNZN0d4hQoudVbdCf6UuvsUvM1hDFO7by10qFEs0DqsufccpDlpG/
 us96BWf7PgiNzHYSvZIlmsfEDzNDRRg7Dm1NuLOQvXw56zFGsrysCO6Tqg7/ScJm
 Unz/VlEe1DE7zE9QotsKNCht7xHkmn1vfuva1wqG2wMp7EHf0rKnavRYrWUrxiEy
 2ig6GpR7mIHmVHS8PAMNhyS6iNxGQ3e50sAvZdqDlq42P73AEwbrOo5YhgsTJxWT
 vCpRAzSuHwPOPY3W2Aa1yJ10iOpoPKxXs2xSZuzpcz8XJ3RjHy+l90Y0VT4Jrvzv
 +dSY1cynshFccZmw2HQanlt1Ly9G3U8xmx8KIbnsIPCdSIQaQQD27H+Ip0YZ0fKt
 aLmMcQzffma3UP/LPmRAQ45bwx8rLi9M3DWbWOGmSkIRY3etPCXqNuDcC6h5p9TF
 4W74oVcELTql/u8ATZNSbdHBsWAg3GATIkAgdqwLTk/CU/0OgGY8epILr3EM2bc6
 vVbglwP9DiyVOikTLhVNJdZA97qHjZ1WXNo03eefFTBfPDcUlkZw4j2gufGuNFh2
 5vA4C/aSl9uxaLInr3aC
 =kj7u
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This update includes the usual round of major driver updates
  (hisi_sas, ufs, fnic, cxlflash, be2iscsi, ipr, stex). There's also the
  usual amount of cosmetic and spelling stuff"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (155 commits)
  scsi: qla4xxx: fix spelling mistake: "Tempalate" -> "Template"
  scsi: stex: make S6flag static
  scsi: mac_esp: fix to pass correct device identity to free_irq()
  scsi: aacraid: pci_alloc_consistent() failures on ARM64
  scsi: ufs: make ufshcd_get_lists_status() register operation obvious
  scsi: ufs: use MASK_EE_STATUS
  scsi: mac_esp: Replace bogus memory barrier with spinlock
  scsi: fcoe: make fcoe_e_d_tov and fcoe_r_a_tov static
  scsi: sd_zbc: Do not write lock zones for reset
  scsi: sd_zbc: Remove superfluous assignments
  scsi: sd: sd_zbc: Rename sd_zbc_setup_write_cmnd
  scsi: Improve scsi_get_sense_info_fld
  scsi: sd: Cleanup sd_done sense data handling
  scsi: sd: Improve sd_completed_bytes
  scsi: sd: Fix function descriptions
  scsi: mpt3sas: remove redundant wmb
  scsi: mpt: Move scsi_remove_host() out of mptscsih_remove_host()
  scsi: sg: reset 'res_in_use' after unlinking reserved array
  scsi: mvumi: remove code handling zero scsi_sg_count(scmd) case
  scsi: fusion: fix spelling mistake: "Persistancy" -> "Persistency"
  ...
2017-05-04 12:19:44 -07:00
Linus Torvalds
694752922b Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe:

 - Add BFQ IO scheduler under the new blk-mq scheduling framework. BFQ
   was initially a fork of CFQ, but subsequently changed to implement
   fairness based on B-WF2Q+, a modified variant of WF2Q. BFQ is meant
   to be used on desktop type single drives, providing good fairness.
   From Paolo.

 - Add Kyber IO scheduler. This is a full multiqueue aware scheduler,
   using a scalable token based algorithm that throttles IO based on
   live completion IO stats, similary to blk-wbt. From Omar.

 - A series from Jan, moving users to separately allocated backing
   devices. This continues the work of separating backing device life
   times, solving various problems with hot removal.

 - A series of updates for lightnvm, mostly from Javier. Includes a
   'pblk' target that exposes an open channel SSD as a physical block
   device.

 - A series of fixes and improvements for nbd from Josef.

 - A series from Omar, removing queue sharing between devices on mostly
   legacy drivers. This helps us clean up other bits, if we know that a
   queue only has a single device backing. This has been overdue for
   more than a decade.

 - Fixes for the blk-stats, and improvements to unify the stats and user
   windows. This both improves blk-wbt, and enables other users to
   register a need to receive IO stats for a device. From Omar.

 - blk-throttle improvements from Shaohua. This provides a scalable
   framework for implementing scalable priotization - particularly for
   blk-mq, but applicable to any type of block device. The interface is
   marked experimental for now.

 - Bucketized IO stats for IO polling from Stephen Bates. This improves
   efficiency of polled workloads in the presence of mixed block size
   IO.

 - A few fixes for opal, from Scott.

 - A few pulls for NVMe, including a lot of fixes for NVMe-over-fabrics.
   From a variety of folks, mostly Sagi and James Smart.

 - A series from Bart, improving our exposed info and capabilities from
   the blk-mq debugfs support.

 - A series from Christoph, cleaning up how handle WRITE_ZEROES.

 - A series from Christoph, cleaning up the block layer handling of how
   we track errors in a request. On top of being a nice cleanup, it also
   shrinks the size of struct request a bit.

 - Removal of mg_disk and hd (sorry Linus) by Christoph. The former was
   never used by platforms, and the latter has outlived it's usefulness.

 - Various little bug fixes and cleanups from a wide variety of folks.

* 'for-4.12/block' of git://git.kernel.dk/linux-block: (329 commits)
  block: hide badblocks attribute by default
  blk-mq: unify hctx delay_work and run_work
  block: add kblock_mod_delayed_work_on()
  blk-mq: unify hctx delayed_run_work and run_work
  nbd: fix use after free on module unload
  MAINTAINERS: bfq: Add Paolo as maintainer for the BFQ I/O scheduler
  blk-mq-sched: alloate reserved tags out of normal pool
  mtip32xx: use runtime tag to initialize command header
  scsi: Implement blk_mq_ops.show_rq()
  blk-mq: Add blk_mq_ops.show_rq()
  blk-mq: Show operation, cmd_flags and rq_flags names
  blk-mq: Make blk_flags_show() callers append a newline character
  blk-mq: Move the "state" debugfs attribute one level down
  blk-mq: Unregister debugfs attributes earlier
  blk-mq: Only unregister hctxs for which registration succeeded
  blk-mq-debugfs: Rename functions for registering and unregistering the mq directory
  blk-mq: Let blk_mq_debugfs_register() look up the queue name
  blk-mq: Register <dev>/queue/mq after having registered <dev>/queue
  ide-pm: always pass 0 error to ide_complete_rq in ide_do_devset
  ide-pm: always pass 0 error to __blk_end_request_all
  ..
2017-05-01 10:39:57 -07:00
Damien Le Moal
a90dfdc2de scsi: sd: sd_zbc: Rename sd_zbc_setup_write_cmnd
Rename sd_zbc_setup_write_cmnd() to sd_zbc_write_lock_zone() to be clear
about what the function actually does. To be consistent, also rename
sd_zbc_cancel_write_cmnd() to sd_zbc_write_unlock_zone().

No functional change is introduced by this patch.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-25 13:00:57 -04:00
Christoph Hellwig
d227ec267f scsi: sd: Cleanup sd_done sense data handling
Use a switch for the sense key, and remove two pointless variables that
are only used once.

[mkp: Added UNMAP comment and removed good_bytes based on comment from
Damien]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-25 13:00:39 -04:00
Damien Le Moal
6eadc61224 scsi: sd: Improve sd_completed_bytes
Re-shuffle the code to be more efficient by not initializing variables
upfront (i.e. do it only when necessary).  Also replace the do_div calls
with calls to sectors_to_logical().

No functional change is introduced by this patch.

[mkp: bytes_to_logical()]

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-24 19:00:29 -04:00
Damien Le Moal
7529fbb008 scsi: sd: Fix function descriptions
Fix argument names and description of function documentation comments.
No functional change is introduced by this patch.

[mkp: verbify]

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-24 18:38:30 -04:00
Linus Torvalds
403a39f8b0 SCSI fixes on 20170415
This is seven small fixes which are all for user visible issues that
 fortunately only occur in rare circumstances.  The most serious is the
 sr one in which QEMU can cause us to read beyond the end of a buffer
 (I don't think it's exploitable, but just in case).  The next is the
 sd capacity fix which means all non 512 byte sector drives greater
 than 2TB fail to be correctly sized.  The rest are either in new
 drivers (qedf) or on error legs.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJY8krDAAoJEAVr7HOZEZN4BpoQAKKwu5Y7jRS6JNoS94pT2L33
 Rz8dEQNdSmr7JvVQphoQDw7YQjYsGV+4f3FdGMrjMzU0Ew3QR1w2SPwK9ww3wUj6
 eHrIdnkd77FJgWyyy/wLTcf55YwGqhIKCSVv3tQmZN/xiuM7x12ZsW8Kb8ydAbKR
 824+VU49dSx3rpnzUPUI/+eb8u5MgLHoNpzDzRWb4Au+05LOkgthDMfC6GdmOnyx
 Asko/u4UNL69cT+xeYNmryMI+OHdqkRILMadefySJ8QTBfvZHsazYqb4YtWA0qf9
 1VAmuvQzToGC7waAHj2X0FSPEISUx+NehXgQjIOZ9aVD2L1XDFm1wRpI3CsIFRA1
 2IrgGYpR7rQ2Uj6z7VI+uU+0O/fs13Tctyv6C1wuqkjM+itBLQ5IGuG9shBPXazP
 UrD9R+SZfMsGXa1ABlcYJE7M+xEusoN2TKGj5yR5D9kt+a/JcqF2GEmY/KpNkEkT
 rmdqAgHqL/bvIc/qyfU4ZayR1MlGe38oPfm9D+vYqJk/V+drlWt66PkamRowfyej
 WufO4l4mB8bpR+HLjRXK4Nh0wHzh8WDgZUrRJXBmOqpig6v3HCJzUejvFTBjzdjx
 uOUlN41RGnOI1L6OpY6IAc2GPw7IwMHKXaIKL0OwyaK+lxvVMO1jRg3TieXzdSp1
 wF7GqfOw2WFVvX1n5xX3
 =vOpC
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is seven small fixes which are all for user visible issues that
  fortunately only occur in rare circumstances.

  The most serious is the sr one in which QEMU can cause us to read
  beyond the end of a buffer (I don't think it's exploitable, but just
  in case).

  The next is the sd capacity fix which means all non 512 byte sector
  drives greater than 2TB fail to be correctly sized.

  The rest are either in new drivers (qedf) or on error legs"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ipr: do not set DID_PASSTHROUGH on CHECK CONDITION
  scsi: aacraid: fix PCI error recovery path
  scsi: sd: Fix capacity calculation with 32-bit sector_t
  scsi: qla2xxx: Add fix to read correct register value for ISP82xx.
  scsi: qedf: Fix crash due to unsolicited FIP VLAN response.
  scsi: sr: Sanity check returned mode data
  scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable
2017-04-15 09:42:14 -07:00
Martin K. Petersen
bcd069bb25 scsi: sd: Remove LBPRZ dependency for discards
Separating discards and zeroout operations allows us to remove the LBPRZ
block zeroing constraints from discards and honor the device preferences
for UNMAP commands.

If supported by the device, we'll also choose UNMAP over one of the
WRITE SAME variants for discards.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Martin K. Petersen
e6bd931284 scsi: sd: Separate zeroout and discard command choices
Now that zeroout and discards are distinct operations we need to
separate the policy of choosing the appropriate command. Create a
zeroing_mode which can be one of:

write:			Zeroout assist not present, use regular WRITE
writesame:		Allow WRITE SAME(10/16) with a zeroed payload
writesame_16_unmap:	Allow WRITE SAME(16) with UNMAP
writesame_10_unmap:	Allow WRITE SAME(10) with UNMAP

The last two are conditional on the device being thin provisioned with
LBPRZ=1 and LBPWS=1 or LBPWS10=1 respectively.

Whether to set the UNMAP bit or not depends on the REQ_NOUNMAP flag. And
if none of the _unmap variants are supported, regular WRITE SAME will be
used if the device supports it.

The zeroout_mode is exported in sysfs and the detected mode for a given
device can be overridden using the string constants above.

With this change in place we can now issue WRITE SAME(16) with UNMAP set
for block zeroing applications that require hard guarantees and
logical_block_size granularity. And at the same time use the UNMAP
command with the device's preferred granulary and alignment for discard
operations.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Christoph Hellwig
48920ff2a5 block: remove the discard_zeroes_data flag
Now that we use the proper REQ_OP_WRITE_ZEROES operation everywhere we can
kill this hack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Christoph Hellwig
e4b878371b sd: implement unmapping Write Zeroes
Try to use a write same with unmap bit variant if the device supports it
and the caller allows for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Christoph Hellwig
02d261034f sd: implement REQ_OP_WRITE_ZEROES
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Christoph Hellwig
81d926e8b5 sd: split sd_setup_discard_cmnd
Split sd_setup_discard_cmnd into one function per provisioning type.  While
this creates some very slight duplication of boilerplate code it keeps the
code modular for additions of new provisioning types, and for reusing the
write same functions for the upcoming scsi implementation of the Write Zeroes
operation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Martin K. Petersen
7c856152cb scsi: sd: Fix capacity calculation with 32-bit sector_t
We previously made sure that the reported disk capacity was less than
0xffffffff blocks when the kernel was not compiled with large sector_t
support (CONFIG_LBDAF). However, this check assumed that the capacity
was reported in units of 512 bytes.

Add a sanity check function to ensure that we only enable disks if the
entire reported capacity can be expressed in terms of sector_t.

Cc: <stable@vger.kernel.org>
Reported-by: Steve Magnani <steve.magnani@digidescorp.com>
Cc: Bart Van Assche <Bart.VanAssche@sandisk.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-07 17:07:16 -04:00
Fam Zheng
6780414519 scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable
If device reports a small max_xfer_blocks and a zero opt_xfer_blocks, we
end up using BLK_DEF_MAX_SECTORS, which is wrong and r/w of that size
may get error.

[mkp: tweaked to avoid setting rw_max twice and added typecast]

Cc: <stable@vger.kernel.org> # v4.4+
Fixes: ca369d51b3 ("block/sd: Fix device-imposed transfer length limits")
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-07 17:05:15 -04:00
Hannes Reinecke
e8f8d50e07 scsi: sd: Return SUCCESS in sd_eh_action() after device offline
If sd_eh_action() decides to take the device offline there is
no point in returning FAILED, as taking the device offline
is the ultimate step in SCSI EH anyway.
So further escalation via SCSI EH is not likely to make a
difference and we can as well return SUCCESS.

Cc: Benjamin Block <bblock@linux.vnet.ibm.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-06 13:07:32 -04:00
Hannes Reinecke
7a38dc0bfb scsi: scsi_error: count medium access timeout only once per EH run
The current medium access timeout counter will be increased for
each command, so if there are enough failed commands we'll hit
the medium access timeout for even a single device failure and
the following kernel message is displayed:

sd H:C:T:L: [sdXY] Medium access timeout failure. Offlining disk!

Fix this by making the timeout per EH run, ie the counter will
only be increased once per device and EH run.

Fixes: 18a4d0a ("[SCSI] Handle disk devices which can not process medium access commands")
Cc: Ewan Milne <emilne@redhat.com>
Cc: Lawrence Obermann <loberman@redhat.com>
Cc: Benjamin Block <bblock@linux.vnet.ibm.com>
Cc: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-06 13:07:32 -04:00
Linus Torvalds
95422dec6b SCSI fixes on 20170315
This is a rather large set of fixes.  The bulk are for lpfc correcting
 a lot of issues in the new NVME driver code which just went in in the
 merge window.  The others are: fix a hang in the vmware paravirt
 driver caused by incorrect handling of the new MSI vector allocation.
 A long standing bug in storvsc, which recent block changes turned from
 being a harmless annoyance into a hang and yet more fallout (in
 mpt3sas) from the changes to device blocking.  The remainder are small
 fixes and updates.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJYyXW+AAoJEAVr7HOZEZN4yzIP/R2qDzwoXw3dl5xHs2AQuxWU
 P7mbUqtN2meU0klIKNCaYq6WO797WvGblSldrPwB08M7QOg8vy7boNiCYmwdEs6W
 Ftihj99OwEp0598MldNw1hBtMqjJ1WSu/kLK/I3pjLjltyPbQunuvaEwSNvxD1r7
 8BRmngYLFPb3KQDSO74ILBdZ5DqsriIXDHlngKSKfrpjO5IWXHrmzhZTmU2qpE40
 H4C4+Kn3/iZKGRiMm4rsikRDEGty9aVo7f4CIrwWslLkaJWf/AS4Kf3rd5qqclRj
 crjP/axqXheuwggKaHNhnxX5oSGt61ZCH9lGMmSNV/q6pUtNsrhO2uZuBIP0vtDB
 y7Pfw0Z3MGnbsOmBhZLRnUYC9PgSZPysy3TuS6/BgGx2ZFPnFxXjA1T73YaUil9q
 zcCOV2E7WHjIFGrpF2jNmoGsh1360TUOjg8YXdLi8pC2sEqSU331nvB5W9xAw3EG
 ewusZFetumxV8pykSyuDknU5gAMVYhHv+I+eNP8SB0eUZTLeKlcZpWIt3QYSYRdJ
 KbCc4CSi28J+DghB86eRZC64QqFiYMP546zUPpD1Enh/HXtVrTYzRN9/Qwo2FJRZ
 s5E3aC6tPceSuOmqn4aL9+Il7NXDj1Y/M9Qwe6Dzjp7q8hLCb7J1TWY3G5ImBWI7
 TfdyBrvZerqpxga+6j5g
 =0mha
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a rather large set of fixes. The bulk are for lpfc correcting
  a lot of issues in the new NVME driver code which just went in in the
  merge window.

  The others are:

   - fix a hang in the vmware paravirt driver caused by incorrect
     handling of the new MSI vector allocation

   - long standing bug in storvsc, which recent block changes turned
     from being a harmless annoyance into a hang

   - yet more fallout (in mpt3sas) from the changes to device blocking

  The remainder are small fixes and updates"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (34 commits)
  scsi: lpfc: Add shutdown method for kexec
  scsi: storvsc: Workaround for virtual DVD SCSI version
  scsi: lpfc: revise version number to 11.2.0.10
  scsi: lpfc: code cleanups in NVME initiator discovery
  scsi: lpfc: code cleanups in NVME initiator base
  scsi: lpfc: correct rdp diag portnames
  scsi: lpfc: remove dead sli3 nvme code
  scsi: lpfc: correct double print
  scsi: lpfc: Rename LPFC_MAX_EQ_DELAY to LPFC_MAX_EQ_DELAY_EQID_CNT
  scsi: lpfc: Rework lpfc Kconfig for NVME options
  scsi: lpfc: add transport eh_timed_out reference
  scsi: lpfc: Fix eh_deadline setting for sli3 adapters.
  scsi: lpfc: add NVME exchange aborts
  scsi: lpfc: Fix nvme allocation bug on failed nvme_fc_register_localport
  scsi: lpfc: Fix IO submission if WQ is full
  scsi: lpfc: Fix NVME CMD IU byte swapped word 1 problem
  scsi: lpfc: Fix RCTL value on NVME LS request and response
  scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters
  scsi: lpfc: fix missing spin_unlock on sql_list_lock
  scsi: lpfc: don't dereference dma_buf->iocbq before null check
  ...
2017-03-15 10:44:19 -07:00
Jan Kara
c01228db4b Revert "scsi, block: fix duplicate bdi name registration crashes"
This reverts commit 0dba1314d4. It causes
leaking of device numbers for SCSI when SCSI registers multiple gendisks
for one request_queue in succession. It can be easily reproduced using
Omar's script [1] on kernel with CONFIG_DEBUG_TEST_DRIVER_REMOVE.
Furthermore the protection provided by this commit is not needed anymore
as the problem it was fixing got also fixed by commit 165a5e22fa
"block: Move bdi_unregister() to del_gendisk()".

[1]: http://marc.info/?l=linux-block&m=148554717109098&w=2

Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-08 10:55:17 -07:00
Damien Le Moal
c46f09175d scsi: sd: Check for unaligned partial completion
Commit <f2e767bb5d6e> ("mpt3sas: Force request partial completion
alignment") was not considering the case of commands not operating on
logical block size units (e.g. REQ_OP_ZONE_REPORT and its 64B aligned
partial replies). In this case, forcing alignment of resid to the device
logical block size can break the command result, e.g. in the case of
REQ_OP_ZONE_REPORT, the exact number of zone reported by the device.

Move the partial completion alignement check of mpt3sas to a generic
implementation in sd_done(). The check is added within the default
section of the initial req_op() switch case so that the report and reset
zone commands are ignored. In addition, as sd_done() is not called for
passthrough requests, resid corrections are not done as intended by the
initial mpt3sas patch.

Fixes: f2e767bb5d ("mpt3sas: Force request partial completion alignment")
Cc: <stable@vger.kernel.org> # v4.10
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-01 21:46:11 -05:00
Christoph Hellwig
fcbfffe2c5 scsi: remove scsi_execute_req_flags
And switch all callers to use scsi_execute instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-23 16:57:36 -05:00
Christoph Hellwig
6fa2b8f9e3 scsi: sd: improve TUR handling in sd_check_events
Remove bogus evaluations of retval and sshdr when the device is offline,
and fix a possible NULL pointer dereference by allocating the 8 byte
sized sense header on stack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-22 19:34:17 -05:00
Colin Ian King
f170396c14 scsi: fix memory leak of sdpk on when gd fails to allocate
On an allocation failure of gd, the current exit path is via
out_free_devt which leaves sdpk still allocated and hence it gets
leaked. Fix this by correcting the order of resource free'ing with a
change in the error exit path labels.

Detected by CoverityScan, CID#1399519 ("Resource Leak")

Fixes: 0dba1314d4 ("scsi, block: fix duplicate bdi name registration crashes")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-22 19:20:32 -05:00
Wei Yongjun
8bfcd1bf86 scsi: sd: make sd_devt_release() static
Fixes the following sparse warning:

drivers/scsi/sd.c:3087:6: warning:
 symbol 'sd_devt_release' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-22 19:13:54 -05:00
Linus Torvalds
cdc194705d SCSI misc on 20170220
This update includes the usual round of major driver updates (ncr5380,
 ufs, lpfc, be2iscsi, hisi_sas, storvsc, cxlflash, aacraid,
 megaraid_sas, ).  There's also an assortment of minor fixes and the
 major update of switching a bunch of drivers to pci_alloc_irq_vectors
 from Christoph.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJYq5adAAoJEAVr7HOZEZN4bjUP/Atk7CSZVnC75pcYmncbEGCx
 ysOlEHK4uW2HhiAYk3PlYMk+pKrMHet2zsbbM9PHJfopdOHZ7Sq1+UZZVeqE1Zun
 8pe0NhON+fZx7XAnevdEvnSSULQZ+AGfjZO72iUwkJiN3ozYaFtCITOyn49l4GpR
 ra9emskBh7CQOFW2voGn1AKeDijPYGx3+TO4AUrWjVMiByR06gb1bmImx+ljiUrs
 jzRJPfrt90ORcTdpMateyN2EXxudcASMhX03SJ6fRI84hPAhMCROMbTv8RnzOTE4
 DPbnvbYUowlHt43iUhJHSwGdkRRaRBnkzQENBp1fNrNzZgF6vB7+kShxbonrYB2p
 gC4ewaJr0BNj+HsUnvTpe3WseiPOcfsnBsKilPLKBlm2dCKEXqFox/dj/T1uexxg
 HoyFrl3u8fyEqVHrzRS4M9t/njWh0NFmXxb0wBdj+lkVFTRErGSKQ8SfOqshuSGs
 P8NN88jy8vC7uqgzKBJ+UH3ehzn3qfBxasFHIC/e2awY9FqKjHGTxKMmSVpjXVxy
 wCvE2FQ3k/qEj2XSM6f7/NGytlSOlju5q1rFtHPW2M+TFSh0LJWCnmVjR/Zle9em
 pBWmtIgCv8W5b41zL2H94nLWAZbfdrrNU/XnX88l47LKnmorte/PGhpxu36NEsMS
 VCgreQmFMdMRY+WzDWl1
 =cBQx
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This update includes the usual round of major driver updates (ncr5380,
  ufs, lpfc, be2iscsi, hisi_sas, storvsc, cxlflash, aacraid,
  megaraid_sas, ...).

  There's also an assortment of minor fixes and the major update of
  switching a bunch of drivers to pci_alloc_irq_vectors from Christoph"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (188 commits)
  scsi: megaraid_sas: handle dma_addr_t right on 32-bit
  scsi: megaraid_sas: array overflow in megasas_dump_frame()
  scsi: snic: switch to pci_irq_alloc_vectors
  scsi: megaraid_sas: driver version upgrade
  scsi: megaraid_sas: Change RAID_1_10_RMW_CMDS to RAID_1_PEER_CMDS and set value to 2
  scsi: megaraid_sas: Indentation and smatch warning fixes
  scsi: megaraid_sas: Cleanup VD_EXT_DEBUG and SPAN_DEBUG related debug prints
  scsi: megaraid_sas: Increase internal command pool
  scsi: megaraid_sas: Use synchronize_irq to wait for IRQs to complete
  scsi: megaraid_sas: Bail out the driver load if ld_list_query fails
  scsi: megaraid_sas: Change build_mpt_mfi_pass_thru to return void
  scsi: megaraid_sas: During OCR, if get_ctrl_info fails do not continue with OCR
  scsi: megaraid_sas: Do not set fp_possible if TM capable for non-RW syspdIO, change fp_possible to bool
  scsi: megaraid_sas: Remove unused pd_index from megasas_build_ld_nonrw_fusion
  scsi: megaraid_sas: megasas_return_cmd does not memset IO frame to zero
  scsi: megaraid_sas: max_fw_cmds are decremented twice, remove duplicate
  scsi: megaraid_sas: update can_queue only if the new value is less
  scsi: megaraid_sas: Change max_cmd from u32 to u16 in all functions
  scsi: megaraid_sas: set pd_after_lb from MR_BuildRaidContext and initialize pDevHandle to MR_DEVHANDLE_INVALID
  scsi: megaraid_sas: latest controller OCR capability from FW before sending shutdown DCMD
  ...
2017-02-21 11:51:42 -08:00
Jens Axboe
818551e2b2 Merge branch 'for-4.11/next' into for-4.11/linus-merge
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-17 14:08:19 -07:00
Dan Williams
0dba1314d4 scsi, block: fix duplicate bdi name registration crashes
Warnings of the following form occur because scsi reuses a devt number
while the block layer still has it referenced as the name of the bdi
[1]:

 WARNING: CPU: 1 PID: 93 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x62/0x80
 sysfs: cannot create duplicate filename '/devices/virtual/bdi/8:192'
 [..]
 Call Trace:
  dump_stack+0x86/0xc3
  __warn+0xcb/0xf0
  warn_slowpath_fmt+0x5f/0x80
  ? kernfs_path_from_node+0x4f/0x60
  sysfs_warn_dup+0x62/0x80
  sysfs_create_dir_ns+0x77/0x90
  kobject_add_internal+0xb2/0x350
  kobject_add+0x75/0xd0
  device_add+0x15a/0x650
  device_create_groups_vargs+0xe0/0xf0
  device_create_vargs+0x1c/0x20
  bdi_register+0x90/0x240
  ? lockdep_init_map+0x57/0x200
  bdi_register_owner+0x36/0x60
  device_add_disk+0x1bb/0x4e0
  ? __pm_runtime_use_autosuspend+0x5c/0x70
  sd_probe_async+0x10d/0x1c0
  async_run_entry_fn+0x39/0x170

This is a brute-force fix to pass the devt release information from
sd_probe() to the locations where we register the bdi,
device_add_disk(), and unregister the bdi, blk_cleanup_queue().

Thanks to Omar for the quick reproducer script [2]. This patch survives
where an unmodified kernel fails in a few seconds.

[1]: https://marc.info/?l=linux-scsi&m=147116857810716&w=4
[2]: http://marc.info/?l=linux-block&m=148554717109098&w=2

Cc: James Bottomley <James.Bottomley@hansenpartnership.com>
Cc: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Jan Kara <jack@suse.cz>
Reported-by: Omar Sandoval <osandov@osandov.com>
Tested-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-02 08:23:19 -07:00
Christoph Hellwig
68b568c797 ѕd: remove pointless REQ_TYPE_FS check
->done can only be called for fs requests, so no need to check again here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-31 14:00:04 -07:00
Christoph Hellwig
82ed4db499 block: split scsi_request out of struct request
And require all drivers that want to support BLOCK_PC to allocate it
as the first thing of their private data.  To support this the legacy
IDE and BSG code is switched to set cmd_size on their queues to let
the block layer allocate the additional space.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-27 15:08:35 -07:00
Bart Van Assche
08965c2eba Revert "sd: remove __data_len hack for WRITE SAME"
This patch reverts commit f80de881d8 and avoids that sending a
WRITE SAME command to the iSCSI initiator triggers the following:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000014
TARGET_CORE[iSCSI]: Expected Transfer Length: 260096 does not match SCSI CDB Length: 512 for SAM Opcode: 0x41
IP: iscsi_tcp_segment_done+0x20b/0x310 [libiscsi_tcp]

Oops: 0000 [#1] SMP
Modules linked in: target_core_user uio target_core_iblock target_core_file iscsi_target_mod target_core_mod netconsole configfs crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 crypto_simd cryptd glue_helper virtio_console virtio_rng virtio_balloon serio_raw i2c_piix4 acpi_cpufreq button iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ext4 jbd2 mbcache virtio_blk virtio_net psmouse floppy drm_kms_helper syscopyarea
sysfillrect sysimgblt fb_sys_fops ttm drm virtio_pci
CPU: 2 PID: 5 Comm: kworker/u8:0 Not tainted 4.10.0-rc5-debug+ #3
Workqueue: iscsi_q_0 iscsi_xmitworker [libiscsi]
RIP: 0010:iscsi_tcp_segment_done+0x20b/0x310 [libiscsi_tcp]
Call Trace:
 iscsi_sw_tcp_xmit_segment+0x84/0x120 [iscsi_tcp]
 iscsi_sw_tcp_pdu_xmit+0x51/0x180 [iscsi_tcp]
 iscsi_tcp_task_xmit+0xb3/0x290 [libiscsi_tcp]
 iscsi_xmit_task+0x4e/0xc0 [libiscsi]
 iscsi_xmitworker+0x243/0x330 [libiscsi]
 process_one_work+0x1d8/0x4b0
 worker_thread+0x49/0x4a0
 kthread+0x102/0x140

Fixes: f80de881d8 ("sd: remove __data_len hack for WRITE SAME")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Jens Axboe <axboe@fb.com>
Cc: Lee Duncan <lduncan@suse.com>
Cc: Chris Leech <cleech@redhat.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-26 10:01:20 -07:00
John Pittman
f2a3313d65 scsi: sd: Cleaned up comment references to @sdp argument explanation.
In sd.c there are two comment references to 'struct scsi_device *sdp' as
an argument.  One of the references has a typo and the other should be a
reference to 'struct device *dev' instead.

Fixed by correcting the typo in the first and changing the explanation
in the second.

Signed-off-by: John Pittman <jpittman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-20 16:59:03 -05:00
Linus Torvalds
f09ff1de63 SCSI fixes on 20170119
This is a set of 12 fixes including the mpt3sas one that was causing
 hangs on ATA passthrough.  The others are a couple of zoned block
 device fixes, a SAS device detection bug which lead to SATA drives not
 being matched to bays, two qla2xxx MSI fixes, a qla2xxx req for rsp
 confusion caused by cut and paste, and a few other minor fixes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJYgY/0AAoJEAVr7HOZEZN4avAP/1WxoiNBoQV16CsAyvSlbf0A
 ZQ7cR0O/cWjI7ccoLUKHxbTJ57GzMTelfmrdRsVIbNeH74NGSP4+IxzshItSwKG0
 /hz0MkCqAxRs/pxliZW8DM12cEbKDIm/t4XWjDst1KBdqakluigmAIniWitKnLE3
 IeA0am4/KDf/n5tQm7CI+7GOT7g0QuRqAlfAM1MFXZGAzjw2RZcSQOVkPr6vW2I+
 bvDUzmWDHOZ/3g5CRrgA6pGC/1FBVbYPF5iOQicCUuMjpniR4IVvcwek5ULUkCYl
 5yZnx7dg/FEXcFawp3fTQ8SbxM6Dhkqkb5/Xe/E+wjjAOwF1I3lDwdV39nQk3aBK
 TwIFgeZY8CS3Z+7e9rtlRFUL2kFWwKy5uhFM/6qmY9cpXFYnPN5JsrChq/7Tgb9t
 XW3/4CoS2ijcNuvxGymvyJG2FpZsLaJfLfXw4kkEUtn0W3Dzbub2PrMfPUUn7hQO
 rmk3ZEuoSANvsZ9n647Gpvo7iQBbC7blNf8krSLJvoopN6SUUmLCsePXEHxorBxz
 r7xAkHFqapOjBn28u4JAn5po7aVa3/fQwBuUF6UvfuVJKbvnobl4Qx0O/Fqadd7s
 bix9OfCG1GMyEnUBLEWPpBg0jS2JZbLupeXVssiATks93KV2SefiQlEhYwA5hOS5
 6+PykxkIEjEmU7asjQJ0
 =8y3/
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of 12 fixes including the mpt3sas one that was causing
  hangs on ATA passthrough.

  The others are a couple of zoned block device fixes, a SAS device
  detection bug which lead to SATA drives not being matched to bays, two
  qla2xxx MSI fixes, a qla2xxx req for rsp confusion caused by cut and
  paste, and a few other minor fixes"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mpt3sas: fix hang on ata passthrough commands
  scsi: lpfc: Set elsiocb contexts to NULL after freeing it
  scsi: sd: Ignore zoned field for host-managed devices
  scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type
  scsi: bfa: fix wrongly initialized variable in bfad_im_bsg_els_ct_request()
  scsi: ses: Fix SAS device detection in enclosure
  scsi: libfc: Fix variable name in fc_set_wwpn
  scsi: lpfc: avoid double free of resource identifiers
  scsi: qla2xxx: remove irq_affinity_notifier
  scsi: qla2xxx: fix MSI-X vector affinity
  scsi: qla2xxx: Fix apparent cut-n-paste error.
  scsi: qla2xxx: Get mutex lock before checking optrom_state
2017-01-20 11:47:18 -08:00
James Bottomley
9208b75e04 Merge remote-tracking branch 'mkp-scsi/fixes' into fixes 2017-01-17 17:32:54 -05:00
Damien Le Moal
68af412c77 scsi: sd: Ignore zoned field for host-managed devices
There is no good match of the zoned field of the block device
characteristics page for host-managed devices. For these devices, the
zoning model is derived directly from the device type. So ignore the
zoned field for these drives.

[mkp: typo]

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-17 14:06:22 -05:00
Damien Le Moal
26f2819772 scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type
Zoned block devices force the use of READ/WRITE(16) commands by setting
sdkp->use_16_for_rw and clearing sdkp->use_10_for_rw. This result in
DPOFUA always being disabled for these drives as the assumed use of
the deprecated READ/WRITE(6) commands only looks at sdkp->use_10_for_rw.
Strenghten the test by also checking that sdkp->use_16_for_rw is false.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-17 14:05:02 -05:00
Christoph Hellwig
f80de881d8 sd: remove __data_len hack for WRITE SAME
Now that we have the blk_rq_payload_bytes helper available to determine
the actual I/O size we don't need to mess around with __data_len for
WRITE SAME.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-13 15:17:04 -07:00