Commit Graph

18962 Commits

Author SHA1 Message Date
Roman Bolshakov
58e39a2ce4 scsi: qla2xxx: Change discovery state before PLOGI
When a port sends PLOGI, discovery state should be changed to login
pending, otherwise RELOGIN_NEEDED bit is set in
qla24xx_handle_plogi_done_event(). RELOGIN_NEEDED triggers another PLOGI,
and it never goes out of the loop until login timer expires.

Fixes: 8777e4314d ("scsi: qla2xxx: Migrate NVME N2N handling into state machine")
Fixes: 8b5292bcfc ("scsi: qla2xxx: Fix Relogin to prevent modifying scan_state flag")
Cc: Quinn Tran <qutran@marvell.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191125165702.1013-6-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:29:06 -05:00
Roman Bolshakov
600954e6f2 scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
del_work is already initialized inside qla2x00_alloc_fcport, there's no
need to overwrite it. Indeed, it might prevent complete traversal of
workqueue list.

Fixes: a01c77d2cb ("scsi: qla2xxx: Move session delete to driver work queue")
Cc: Quinn Tran <qutran@marvell.com>
Link: https://lore.kernel.org/r/20191125165702.1013-5-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:29:01 -05:00
Roman Bolshakov
4c86b037a6 scsi: qla2xxx: Initialize free_work before flushing it
Target creation triggers a new BUG_ON introduced in in commit 4d43d395fe
("workqueue: Try to catch flush_work() without INIT_WORK().").  The BUG_ON
reveals an attempt to flush free_work in qla24xx_do_nack_work before it's
initialized in qlt_unreg_sess:

  WARNING: CPU: 7 PID: 211 at kernel/workqueue.c:3031 __flush_work.isra.38+0x40/0x2e0
  CPU: 7 PID: 211 Comm: kworker/7:1 Kdump: loaded Tainted: G            E     5.3.0-rc7-vanilla+ #2
  Workqueue: qla2xxx_wq qla2x00_iocb_work_fn [qla2xxx]
  NIP:  c000000000159620 LR: c0080000009d91b0 CTR: c0000000001598c0
  REGS: c000000005f3f730 TRAP: 0700   Tainted: G            E      (5.3.0-rc7-vanilla+)
  MSR:  800000000282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE>  CR: 24002222  XER: 00000000
  CFAR: c0000000001598d0 IRQMASK: 0
  GPR00: c0080000009d91b0 c000000005f3f9c0 c000000001670a00 c0000003f8655ca8
  GPR04: c0000003f8655c00 000000000000ffff 0000000000000011 ffffffffffffffff
  GPR08: c008000000949228 0000000000000000 0000000000000001 c0080000009e7780
  GPR12: 0000000000002200 c00000003fff6200 c000000000161bc8 0000000000000004
  GPR16: c0000003f9d68280 0000000002000000 0000000000000005 0000000000000003
  GPR20: 0000000000000002 000000000000ffff 0000000000000000 fffffffffffffef7
  GPR24: c000000004f73848 c000000004f73838 c000000004f73f28 c000000005f3fb60
  GPR28: c000000004f73e48 c000000004f73c80 c000000004f73818 c0000003f9d68280
  NIP [c000000000159620] __flush_work.isra.38+0x40/0x2e0
  LR [c0080000009d91b0] qla24xx_do_nack_work+0x88/0x180 [qla2xxx]
  Call Trace:
  [c000000005f3f9c0] [c000000000159644] __flush_work.isra.38+0x64/0x2e0 (unreliable)
  [c000000005f3fa50] [c0080000009d91a0] qla24xx_do_nack_work+0x78/0x180 [qla2xxx]
  [c000000005f3fae0] [c0080000009496ec] qla2x00_do_work+0x604/0xb90 [qla2xxx]
  [c000000005f3fc40] [c008000000949cd8] qla2x00_iocb_work_fn+0x60/0xe0 [qla2xxx]
  [c000000005f3fc80] [c000000000157bb8] process_one_work+0x2c8/0x5b0
  [c000000005f3fd10] [c000000000157f28] worker_thread+0x88/0x660
  [c000000005f3fdb0] [c000000000161d64] kthread+0x1a4/0x1b0
  [c000000005f3fe20] [c00000000000b960] ret_from_kernel_thread+0x5c/0x7c
  Instruction dump:
  3d22001d 892966b1 7d908026 91810008 f821ff71 69290001 0b090000 2e290000
  40920200 e9230018 7d2a0074 794ad182 <0b0a0000> 2fa90000 419e01e8 7c0802a6
  ---[ end trace 5ccf335d4f90fcb8 ]---

Fixes: 1021f0bc2f ("scsi: qla2xxx: allow session delete to finish before create.")
Cc: Quinn Tran <qutran@marvell.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191125165702.1013-4-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:28:43 -05:00
Quinn Tran
86196a8fa8 scsi: qla2xxx: Use explicit LOGO in target mode
Target makes implicit LOGO on session teardown. LOGO ELS is not send on the
wire and initiator is not aware that target no longer wants talking to
it. Initiator keeps sending I/O requests, target responds with BA_RJT, they
time out and then initiator sends ABORT TASK (ABTS-LS).

Current behaviour incurs unneeded I/O timeout and can be fixed for some
initiators by making explicit LOGO on session deletion.

Link: https://lore.kernel.org/r/20191125165702.1013-3-r.bolshakov@yadro.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:27:49 -05:00
Roman Bolshakov
f2c9ee54a5 scsi: qla2xxx: Ignore NULL pointer in tcm_qla2xxx_free_mcmd
If ABTS cannot be completed in target mode, the driver attempts to free
related management command and crashes:

  NIP [d000000019181ee8] tcm_qla2xxx_free_mcmd+0x40/0x80 [tcm_qla2xxx]
  LR [d00000001dc1e6f8] qlt_response_pkt+0x190/0xa10 [qla2xxx]
  Call Trace:
  [c000003fff27bb50] [c000003fff27bc10] 0xc000003fff27bc10 (unreliable)
  [c000003fff27bb70] [d00000001dc1e6f8] qlt_response_pkt+0x190/0xa10 [qla2xxx]
  [c000003fff27bc10] [d00000001dbc2be0] qla24xx_process_response_queue+0x5d8/0xbd0 [qla2xxx]
  [c000003fff27bd50] [d00000001dbc632c] qla24xx_msix_rsp_q+0x64/0x150 [qla2xxx]
  [c000003fff27bde0] [c000000000187200] __handle_irq_event_percpu+0x90/0x310
  [c000003fff27bea0] [c0000000001874b8] handle_irq_event_percpu+0x38/0x90
  [c000003fff27bee0] [c000000000187574] handle_irq_event+0x64/0xb0
  [c000003fff27bf10] [c00000000018cd38] handle_fasteoi_irq+0xe8/0x280
  [c000003fff27bf40] [c000000000185ccc] generic_handle_irq+0x4c/0x70
  [c000003fff27bf60] [c000000000016cec] __do_irq+0x7c/0x1d0
  [c000003fff27bf90] [c00000000002a530] call_do_irq+0x14/0x24
  [c00000207d2cba90] [c000000000016edc] do_IRQ+0x9c/0x130
  [c00000207d2cbae0] [c000000000008bf4] hardware_interrupt_common+0x114/0x120
  --- interrupt: 501 at arch_local_irq_restore+0x74/0x90
      LR = arch_local_irq_restore+0x74/0x90
  [c00000207d2cbdd0] [c0000000001c64fc] tick_broadcast_oneshot_control+0x4c/0x60 (unreliable)
  [c00000207d2cbdf0] [c0000000007ac840] cpuidle_enter_state+0xf0/0x450
  [c00000207d2cbe50] [c00000000016b81c] call_cpuidle+0x4c/0x90
  [c00000207d2cbe70] [c00000000016bc30] do_idle+0x2b0/0x330
  [c00000207d2cbec0] [c00000000016beec] cpu_startup_entry+0x3c/0x50
  [c00000207d2cbef0] [c00000000004a06c] start_secondary+0x63c/0x670
  [c00000207d2cbf90] [c00000000000aa6c] start_secondary_prolog+0x10/0x14

The crash can be triggered by ACL deletion when there's active I/O.

During ACL deletion, qla2xxx performs implicit LOGO that's invisible for
the initiator. Only the driver and firmware are aware of the logout.
Therefore the initiator continues to send SCSI commands and the target
always responds with SAM STATUS BUSY as it can't find the session.

The command times out after a while and initiator invokes ABORT TASK TMF
for the command. The TMF is mapped to ABTS-LS in FCP. The target can't find
session for S_ID originating ABTS-LS so it never allocates mcmd.  And since
N_Port handle was deleted after LOGO, it is no longer valid and ABTS
Response IOCB is returned from firmware with status 31. Then free_mcmd is
invoked on NULL pointer and the kernel crashes.

[ 7734.578642] qla2xxx [0000:00:0c.0]-e837:6: ABTS_RECV_24XX: instance 0
[ 7734.578644] qla2xxx [0000:00:0c.0]-f811:6: qla_target(0): task abort (s_id=1:2:0, tag=1209504, param=0)
[ 7734.578645] find_sess_by_s_id: 0x010200
[ 7734.578645] Unable to locate s_id: 0x010200
[ 7734.578646] qla2xxx [0000:00:0c.0]-f812:6: qla_target(0): task abort for non-existent session
[ 7734.578648] qla2xxx [0000:00:0c.0]-e806:6: Sending task mgmt ABTS response (ha=c0000000d5819000, atio=c0000000d3fd4700, status=4
[ 7734.578730] qla2xxx [0000:00:0c.0]-e838:6: ABTS_RESP_24XX: compl_status 31
[ 7734.578732] qla2xxx [0000:00:0c.0]-e863:6: qla_target(0): ABTS_RESP_24XX failed 31 (subcode 19:a)
[ 7734.578740] Unable to handle kernel paging request for data at address 0x00000200

Fixes: 6b0431d6fa ("scsi: qla2xxx: Fix out of order Termination and ABTS response")
Cc: Quinn Tran <qutran@marvell.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Thomas Abraham <tabraham@suse.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191125165702.1013-2-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:27:42 -05:00
Bo Wu
9a1b0b9a6d scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
When phba->mbox_ext_buf_ctx.seqNum != phba->mbox_ext_buf_ctx.numBuf,
dd_data should be freed before return SLI_CONFIG_HANDLED.

When lpfc_sli_issue_mbox func return fails, pmboxq should be also freed in
job_error tag.

Link: https://lore.kernel.org/r/EDBAAA0BBBA2AC4E9C8B6B81DEEE1D6915E7A966@DGGEML525-MBS.china.huawei.com
Signed-off-by: Bo Wu <wubo40@huawei.com>
Reviewed-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:07:34 -05:00
Michael Hernandez
c868907e1a scsi: qla2xxx: Fix incorrect SFUB length used for Secure Flash Update MB Cmd
SFUB length should be in DWORDs when passed to FW.

Fixes: 3f006ac342 ("scsi: qla2xxx: Secure flash update support for ISP28XX")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191203223657.22109-4-hmadhani@marvell.com
Signed-off-by: Michael Hernandez <mhernandez@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:03:07 -05:00
Michael Hernandez
a530bf691f scsi: qla2xxx: Added support for MPI and PEP regions for ISP28XX
This patch adds support for MPI/PEP region updates which is required with
secure flash updates for ISP28XX.

Fixes: 3f006ac342 ("scsi: qla2xxx: Secure flash update support for ISP28XX")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191203223657.22109-3-hmadhani@marvell.com
Signed-off-by: Michael Hernandez <mhernandez@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:03:07 -05:00
Himanshu Madhani
4e71dcae0c scsi: qla2xxx: Correctly retrieve and interpret active flash region
ISP27XX/28XX supports multiple flash regions. This patch fixes issue where
active flash region was not interpreted correctly during secure flash
update process.

[mkp: typo]

Fixes: 5fa8774c7f ("scsi: qla2xxx: Add 28xx flash primary/secondary status/image mechanism")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191203223657.22109-2-hmadhani@marvell.com
Signed-off-by: Michael Hernandez <mhernandez@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-09 18:03:07 -05:00
Linus Torvalds
138f371ddf SCSI misc on 20191207
11 patches, all in drivers (no core changes) that are either minor
 cleanups or small fixes.  They were late arriving, but still safe for
 -rc1.
 
 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:
 "Eleven patches, all in drivers (no core changes) that are either minor
  cleanups or small fixes.

  They were late arriving, but still safe for -rc1"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: MAINTAINERS: Add the linux-scsi mailing list to the ISCSI entry
  scsi: megaraid_sas: Make poll_aen_lock static
  scsi: sd_zbc: Improve report zones error printout
  scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI
  scsi: qla2xxx: unregister ports after GPN_FT failure
  scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan
  scsi: pm80xx: Remove unused include of linux/version.h
  scsi: pm80xx: fix logic to break out of loop when register value is 2 or 3
  scsi: scsi_transport_sas: Fix memory leak when removing devices
  scsi: lpfc: size cpu map by last cpu id set
  scsi: ibmvscsi_tgt: Remove unneeded variable rc
2019-12-08 12:23:42 -08:00
Linus Torvalds
9feb1af97e for-linus-20191205
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Merge tag 'for-linus-20191205' of git://git.kernel.dk/linux-block

Pull more block and io_uring updates from Jens Axboe:
 "I wasn't expecting this to be so big, and if I was, I would have used
  separate branches for this. Going forward I'll be doing separate
  branches for the current tree, just like for the next kernel version
  tree. In any case, this contains:

   - Series from Christoph that fixes an inherent race condition with
     zoned devices and revalidation.

   - null_blk zone size fix (Damien)

   - Fix for a regression in this merge window that caused busy spins by
     sending empty disk uevents (Eric)

   - Fix for a regression in this merge window for bfq stats (Hou)

   - Fix for io_uring creds allocation failure handling (me)

   - io_uring -ERESTARTSYS send/recvmsg fix (me)

   - Series that fixes the need for applications to retain state across
     async request punts for io_uring. This one is a bit larger than I
     would have hoped, but I think it's important we get this fixed for
     5.5.

   - connect(2) improvement for io_uring, handling EINPROGRESS instead
     of having applications needing to poll for it (me)

   - Have io_uring use a hash for poll requests instead of an rbtree.
     This turned out to work much better in practice, so I think we
     should make the switch now. For some workloads, even with a fair
     amount of cancellations, the insertion sort is just too expensive.
     (me)

   - Various little io_uring fixes (me, Jackie, Pavel, LimingWu)

   - Fix for brd unaligned IO, and a warning for the future (Ming)

   - Fix for a bio integrity data leak (Justin)

   - bvec_iter_advance() improvement (Pavel)

   - Xen blkback page unmap fix (SeongJae)

  The major items in here are all well tested, and on the liburing side
  we continue to add regression and feature test cases. We're up to 50
  topic cases now, each with anywhere from 1 to more than 10 cases in
  each"

* tag 'for-linus-20191205' of git://git.kernel.dk/linux-block: (33 commits)
  block: fix memleak of bio integrity data
  io_uring: fix a typo in a comment
  bfq-iosched: Ensure bio->bi_blkg is valid before using it
  io_uring: hook all linked requests via link_list
  io_uring: fix error handling in io_queue_link_head
  io_uring: use hash table for poll command lookups
  io-wq: clear node->next on list deletion
  io_uring: ensure deferred timeouts copy necessary data
  io_uring: allow IO_SQE_* flags on IORING_OP_TIMEOUT
  null_blk: remove unused variable warning on !CONFIG_BLK_DEV_ZONED
  brd: warn on un-aligned buffer
  brd: remove max_hw_sectors queue limit
  xen/blkback: Avoid unmapping unmapped grant pages
  io_uring: handle connect -EINPROGRESS like -EAGAIN
  block: set the zone size in blk_revalidate_disk_zones atomically
  block: don't handle bio based drivers in blk_revalidate_disk_zones
  block: allocate the zone bitmaps lazily
  block: replace seq_zones_bitmap with conv_zones_bitmap
  block: simplify blkdev_nr_zones
  block: remove the empty line at the end of blk-zoned.c
  ...
2019-12-06 10:08:59 -08:00
Linus Torvalds
c3bed3b20e pci-v5.5-changes
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Merge tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:

   - Warn if a host bridge has no NUMA info (Yunsheng Lin)

   - Add PCI_STD_NUM_BARS for the number of standard BARs (Denis
     Efremov)

  Resource management:

   - Fix boot-time Embedded Controller GPE storm caused by incorrect
     resource assignment after ACPI Bus Check Notification (Mika
     Westerberg)

   - Protect pci_reassign_bridge_resources() against concurrent
     addition/removal (Benjamin Herrenschmidt)

   - Fix bridge dma_ranges resource list cleanup (Rob Herring)

   - Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control
     the MMIO and prefetchable MMIO window sizes of hotplug bridges
     independently (Nicholas Johnson)

   - Fix MMIO/MMIO_PREF window assignment that assigned more space than
     desired (Nicholas Johnson)

   - Only enforce bus numbers from bridge EA if the bridge has EA
     devices downstream (Subbaraya Sundeep)

   - Consolidate DT "dma-ranges" parsing and convert all host drivers to
     use shared parsing (Rob Herring)

  Error reporting:

   - Restore AER capability after resume (Mayurkumar Patel)

   - Add PoisonTLPBlocked AER counter (Rajat Jain)

   - Use for_each_set_bit() to simplify AER code (Andy Shevchenko)

   - Fix AER kernel-doc (Andy Shevchenko)

   - Add "pcie_ports=dpc-native" parameter to allow native use of DPC
     even if platform didn't grant control over AER (Olof Johansson)

  Hotplug:

   - Avoid returning prematurely from sysfs requests to enable or
     disable a PCIe hotplug slot (Lukas Wunner)

   - Don't disable interrupts twice when suspending hotplug ports (Mika
     Westerberg)

   - Fix deadlocks when PCIe ports are hot-removed while suspended (Mika
     Westerberg)

  Power management:

   - Remove unnecessary ASPM locking (Bjorn Helgaas)

   - Add support for disabling L1 PM Substates (Heiner Kallweit)

   - Allow re-enabling Clock PM after it has been disabled (Heiner
     Kallweit)

   - Add sysfs attributes for controlling ASPM link states (Heiner
     Kallweit)

   - Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl"
     sysfs files (Heiner Kallweit)

   - Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on
     USB 2.0 or 1.1 connect events (Kai-Heng Feng)

   - Move power state check out of pci_msi_supported() (Bjorn Helgaas)

   - Fix incorrect MSI-X masking on resume and revert related nvme quirk
     for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan)

   - Always return devices to D0 when thawing to fix hibernation with
     drivers like mlx4 that used legacy power management (previously we
     only did it for drivers with new power management ops) (Dexuan Cui)

   - Clear PCIe PME Status even for legacy power management (Bjorn
     Helgaas)

   - Fix PCI PM documentation errors (Bjorn Helgaas)

   - Use dev_printk() for more power management messages (Bjorn Helgaas)

   - Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas)

   - Convert xen-platform from legacy to generic power management (Bjorn
     Helgaas)

   - Removed unused .resume_early() and .suspend_late() legacy power
     management hooks (Bjorn Helgaas)

   - Rearrange power management code for clarity (Rafael J. Wysocki)

   - Decode power states more clearly ("4" or "D4" really refers to
     "D3cold") (Bjorn Helgaas)

   - Notice when reading PM Control register returns an error (~0)
     instead of interpreting it as being in D3hot (Bjorn Helgaas)

   - Add missing link delays required by the PCIe spec (Mika Westerberg)

  Virtualization:

   - Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn
     Helgaas)

   - Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code
     previously didn't recognize that) (Kuppuswamy Sathyanarayanan)

   - Allow VFs to use PASID (the PF PASID capability is shared by the
     VFs, but the code previously didn't recognize that) (Kuppuswamy
     Sathyanarayanan)

   - Disconnect PF and VF ATS enablement, since ATS in PFs and
     associated VFs can be enabled independently (Kuppuswamy
     Sathyanarayanan)

   - Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan)

   - Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas)

   - Consolidate ATS declarations in linux/pci-ats.h (Krzysztof
     Wilczynski)

   - Remove unused PRI and PASID stubs (Bjorn Helgaas)

   - Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID
     interfaces that are only used by built-in IOMMU drivers (Bjorn
     Helgaas)

   - Hide PRI and PASID state restoration functions used only inside the
     PCI core (Bjorn Helgaas)

   - Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski)

   - Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut)

   - Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George
     Cherian)

   - Fix the UPDCR register address in the Intel ACS quirk (Steffen
     Liebergeld)

   - Unify ACS quirk implementations (Bjorn Helgaas)

  Amlogic Meson host bridge driver:

   - Fix meson PERST# GPIO polarity problem (Remi Pommarel)

   - Add DT bindings for Amlogic Meson G12A (Neil Armstrong)

   - Fix meson clock names to match DT bindings (Neil Armstrong)

   - Add meson support for Amlogic G12A SoC with separate shared PHY
     (Neil Armstrong)

   - Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe
     combo PHY (Neil Armstrong)

   - Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong)

   - Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT
     (Neil Armstrong)

  Broadcom iProc host bridge driver:

   - Invalidate iProc PAXB address mapping before programming it
     (Abhishek Shah)

   - Fix iproc-msi and mvebu __iomem annotations (Ben Dooks)

  Cadence host bridge driver:

   - Refactor Cadence PCIe host controller to use as a library for both
     host and endpoint (Tom Joseph)

  Freescale Layerscape host bridge driver:

   - Add layerscape LS1028a support (Xiaowei Bao)

  Intel VMD host bridge driver:

   - Add VMD bus 224-255 restriction decode (Jon Derrick)

   - Add VMD 8086:9A0B device ID (Jon Derrick)

   - Remove Keith from VMD maintainer list (Keith Busch)

  Marvell ARMADA 3700 / Aardvark host bridge driver:

   - Use LTSSM state to build link training flag since Aardvark doesn't
     implement the Link Training bit (Remi Pommarel)

   - Delay before training Aardvark link in case PERST# was asserted
     before the driver probe (Remi Pommarel)

   - Fix Aardvark issues with Root Control reads and writes (Remi
     Pommarel)

   - Don't rely on jiffies in Aardvark config access path since
     interrupts may be disabled (Remi Pommarel)

   - Fix Aardvark big-endian support (Grzegorz Jaszczyk)

  Marvell ARMADA 370 / XP host bridge driver:

   - Make mvebu_pci_bridge_emul_ops static (Ben Dooks)

  Microsoft Hyper-V host bridge driver:

   - Add hibernation support for Hyper-V virtual PCI devices (Dexuan
     Cui)

   - Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan
     Cui)

   - Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui)

  Mobiveil host bridge driver:

   - Change mobiveil csr_read()/write() function names that conflict
     with riscv arch functions (Kefeng Wang)

  NVIDIA Tegra host bridge driver:

   - Fix Tegra CLKREQ dependency programming (Vidya Sagar)

  Renesas R-Car host bridge driver:

   - Remove unnecessary header include from rcar (Andrew Murray)

   - Tighten register index checking for rcar inbound range programming
     (Marek Vasut)

   - Fix rcar inbound range alignment calculation to improve packing of
     multiple entries (Marek Vasut)

   - Update rcar MACCTLR setting to match documentation (Yoshihiro
     Shimoda)

   - Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual
     (Yoshihiro Shimoda)

   - Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon
     Horman)

  Rockchip host bridge driver:

   - Make rockchip 0V9 and 1V8 power regulators non-optional (Robin
     Murphy)

  Socionext UniPhier host bridge driver:

   - Set uniphier to host (RC) mode always (Kunihiko Hayashi)

  Endpoint drivers:

   - Fix endpoint driver sign extension problem when shifting page
     number to phys_addr_t (Alan Mikhak)

  Misc:

   - Add NumaChip SPDX header (Krzysztof Wilczynski)

   - Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski)

   - Remove unused includes (Krzysztof Wilczynski)

   - Removed unused sysfs attribute groups (Ben Dooks)

   - Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas)

   - Add PCIe Link Control 2 register field definitions to replace magic
     numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas)

   - Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and
     Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas)

   - Use pcie_capability_read_word() instead of pci_read_config_word()
     in AMDGPU and Radeon CIK/SI (Frederick Lawler)

   - Remove unused pci_irq_get_node() Greg Kroah-Hartman)

   - Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig
     (Palmer Dabbelt, Michal Simek)

   - Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe)

   - Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn
     Helgaas)

   - Fix bridge emulation big-endian support (Grzegorz Jaszczyk)

   - Fix dwc find_next_bit() usage (Niklas Cassel)

   - Fix pcitest.c fd leak (Hewenliang)

   - Fix typos and comments (Bjorn Helgaas)

   - Fix Kconfig whitespace errors (Krzysztof Kozlowski)"

* tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits)
  PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist
  asm-generic: Make msi.h a mandatory include/asm header
  Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T"
  PCI/MSI: Fix incorrect MSI-X masking on resume
  PCI/MSI: Move power state check out of pci_msi_supported()
  PCI/MSI: Remove unused pci_irq_get_node()
  PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer
  PCI: hv: Change pci_protocol_version to per-hbus
  PCI: hv: Add hibernation support
  PCI: hv: Reorganize the code in preparation of hibernation
  MAINTAINERS: Remove Keith from VMD maintainer
  PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code
  PCI/ASPM: Add sysfs attributes for controlling ASPM link states
  PCI: Fix indentation
  drm/radeon: Prefer pcie_capability_read_word()
  drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions
  drm/radeon: Correct Transmit Margin masks
  drm/amdgpu: Prefer pcie_capability_read_word()
  PCI: uniphier: Set mode register to host mode
  drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions
  ...
2019-12-03 13:58:22 -08:00
Christoph Hellwig
6c6b354914 block: set the zone size in blk_revalidate_disk_zones atomically
The current zone revalidation code has a major problem in that it
doesn't update the zone size and q->nr_zones atomically, leading
to a short window where an out of bounds access to the zone arrays
is possible.

To fix this move the setting of the zone size into the crticial
sections blk_revalidate_disk_zones so that it gets updated together
with the zone bitmaps and q->nr_zones.  This also slightly simplifies
the caller as it deducts the zone size from the report_zones.

This change also allows to check for a power of two zone size in generic
code.

Reported-by: Hans Holmberg <hans@owltronix.com>
Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 10:18:22 -07:00
Linus Torvalds
ef2cc88e2a SCSI misc on 20191130
This is mostly update of the usual drivers: aacraid, ufs, zfcp,
 NCR5380, lpfc, qla2xxx, smartpqi, hisi_sas, target, mpt3sas, pm80xx
 plus a whole load of minor updates and fixes.  The two major core
 changes are Al Viro's reworking of sg's handling of copy to/from user,
 Ming Lei's removal of the host busy counter to avoid contention in the
 multiqueue case and Damien Le Moal's fixing of residual tracking
 across error 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 SCSI updates from James Bottomley:
 "This is mostly update of the usual drivers: aacraid, ufs, zfcp,
  NCR5380, lpfc, qla2xxx, smartpqi, hisi_sas, target, mpt3sas, pm80xx
  plus a whole load of minor updates and fixes.

  The major core changes are Al Viro's reworking of sg's handling of
  copy to/from user, Ming Lei's removal of the host busy counter to
  avoid contention in the multiqueue case and Damien Le Moal's fixing of
  residual tracking across error handling"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (251 commits)
  scsi: bnx2fc: timeout calculation invalid for bnx2fc_eh_abort()
  scsi: target: core: Fix a pr_debug() argument
  scsi: iscsi: Don't send data to unbound connection
  scsi: target: iscsi: Wait for all commands to finish before freeing a session
  scsi: target: core: Release SPC-2 reservations when closing a session
  scsi: target: core: Document target_cmd_size_check()
  scsi: bnx2i: fix potential use after free
  Revert "scsi: qla2xxx: Fix memory leak when sending I/O fails"
  scsi: NCR5380: Add disconnect_mask module parameter
  scsi: NCR5380: Unconditionally clear ICR after do_abort()
  scsi: NCR5380: Call scsi_set_resid() on command completion
  scsi: scsi_debug: num_tgts must be >= 0
  scsi: lpfc: use hdwq assigned cpu for allocation
  scsi: arcmsr: fix indentation issues
  scsi: qla4xxx: fix double free bug
  scsi: pm80xx: Modified the logic to collect fatal dump
  scsi: pm80xx: Tie the interrupt name to the module instance
  scsi: pm80xx: Controller fatal error through sysfs
  scsi: pm80xx: Do not request 12G sas speeds
  scsi: pm80xx: Cleanup command when a reset times out
  ...
2019-12-02 13:37:02 -08:00
Linus Torvalds
31764f1b6d for-linus-20191129
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Merge tag 'for-linus-20191129' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "I wasn't going to send this one off so soon, but unfortunately one of
  the fixes from the previous pull broke the build on some archs. So I'm
  sending this sooner rather than later. This contains:

   - Add highmem.h include for io_uring, because of the kmap() additions
     from last round. For some reason the build bot didn't spot this
     even though it sat for days.

   - Three minor ';' removals

   - Add support for the Beurer CD-on-a-chip device

   - Make io_uring work on MMU-less archs"

* tag 'for-linus-20191129' of git://git.kernel.dk/linux-block:
  io_uring: fix missing kmap() declaration on powerpc
  ataflop: Remove unneeded semicolon
  block: sunvdc: Remove unneeded semicolon
  drbd: Remove unneeded semicolon
  io_uring: add mapping support for NOMMU archs
  sr_vendor: support Beurer GL50 evo CD-on-a-chip devices.
  cdrom: respect device capabilities during opening action
2019-12-01 18:26:56 -08:00
Linus Torvalds
0da522107e compat_ioctl: remove most of fs/compat_ioctl.c
As part of the cleanup of some remaining y2038 issues, I came to
 fs/compat_ioctl.c, which still has a couple of commands that need support
 for time64_t.
 
 In completely unrelated work, I spent time on cleaning up parts of this
 file in the past, moving things out into drivers instead.
 
 After Al Viro reviewed an earlier version of this series and did a lot
 more of that cleanup, I decided to try to completely eliminate the rest
 of it and move it all into drivers.
 
 This series incorporates some of Al's work and many patches of my own,
 but in the end stops short of actually removing the last part, which is
 the scsi ioctl handlers. I have patches for those as well, but they need
 more testing or possibly a rewrite.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground

Pull removal of most of fs/compat_ioctl.c from Arnd Bergmann:
 "As part of the cleanup of some remaining y2038 issues, I came to
  fs/compat_ioctl.c, which still has a couple of commands that need
  support for time64_t.

  In completely unrelated work, I spent time on cleaning up parts of
  this file in the past, moving things out into drivers instead.

  After Al Viro reviewed an earlier version of this series and did a lot
  more of that cleanup, I decided to try to completely eliminate the
  rest of it and move it all into drivers.

  This series incorporates some of Al's work and many patches of my own,
  but in the end stops short of actually removing the last part, which
  is the scsi ioctl handlers. I have patches for those as well, but they
  need more testing or possibly a rewrite"

* tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (42 commits)
  scsi: sd: enable compat ioctls for sed-opal
  pktcdvd: add compat_ioctl handler
  compat_ioctl: move SG_GET_REQUEST_TABLE handling
  compat_ioctl: ppp: move simple commands into ppp_generic.c
  compat_ioctl: handle PPPIOCGIDLE for 64-bit time_t
  compat_ioctl: move PPPIOCSCOMPRESS to ppp_generic
  compat_ioctl: unify copy-in of ppp filters
  tty: handle compat PPP ioctls
  compat_ioctl: move SIOCOUTQ out of compat_ioctl.c
  compat_ioctl: handle SIOCOUTQNSD
  af_unix: add compat_ioctl support
  compat_ioctl: reimplement SG_IO handling
  compat_ioctl: move WDIOC handling into wdt drivers
  fs: compat_ioctl: move FITRIM emulation into file systems
  gfs2: add compat_ioctl support
  compat_ioctl: remove unused convert_in_user macro
  compat_ioctl: remove last RAID handling code
  compat_ioctl: remove /dev/raw ioctl translation
  compat_ioctl: remove PCI ioctl translation
  compat_ioctl: remove joystick ioctl translation
  ...
2019-12-01 13:46:15 -08:00
Linus Torvalds
0dd0c8f7db - Support for new VMBus protocols (Andrea Parri).
- Hibernation support (Dexuan Cui).
 - Latency testing framework (Branden Bonaby).
 - Decoupling Hyper-V page size from guest page size (Himadri Pandya).
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Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull Hyper-V updates from Sasha Levin:

 - support for new VMBus protocols (Andrea Parri)

 - hibernation support (Dexuan Cui)

 - latency testing framework (Branden Bonaby)

 - decoupling Hyper-V page size from guest page size (Himadri Pandya)

* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (22 commits)
  Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic
  drivers/hv: Replace binary semaphore with mutex
  drivers: iommu: hyperv: Make HYPERV_IOMMU only available on x86
  HID: hyperv: Add the support of hibernation
  hv_balloon: Add the support of hibernation
  x86/hyperv: Implement hv_is_hibernation_supported()
  Drivers: hv: balloon: Remove dependencies on guest page size
  Drivers: hv: vmbus: Remove dependencies on guest page size
  x86: hv: Add function to allocate zeroed page for Hyper-V
  Drivers: hv: util: Specify ring buffer size using Hyper-V page size
  Drivers: hv: Specify receive buffer size using Hyper-V page size
  tools: hv: add vmbus testing tool
  drivers: hv: vmbus: Introduce latency testing
  video: hyperv: hyperv_fb: Support deferred IO for Hyper-V frame buffer driver
  video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host
  hv_netvsc: Add the support of hibernation
  hv_sock: Add the support of hibernation
  video: hyperv_fb: Add the support of hibernation
  scsi: storvsc: Add the support of hibernation
  Drivers: hv: vmbus: Add module parameter to cap the VMBus version
  ...
2019-11-30 14:50:51 -08:00
Bjorn Helgaas
774800cb09 Merge branch 'pci/resource'
- Protect pci_reassign_bridge_resources() against concurrent
    addition/removal (Benjamin Herrenschmidt)

  - Fix bridge dma_ranges resource list cleanup (Rob Herring)

  - Add PCI_STD_NUM_BARS for the number of standard BARs (Denis Efremov)

  - Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control the
    MMIO and prefetchable MMIO window sizes of hotplug bridges
    independently (Nicholas Johnson)

  - Fix MMIO/MMIO_PREF window assignment that assigned more space than
    desired (Nicholas Johnson)

  - Only enforce bus numbers from bridge EA if the bridge has EA devices
    downstream (Subbaraya Sundeep)

* pci/resource:
  PCI: Do not use bus number zero from EA capability
  PCI: Avoid double hpmemsize MMIO window assignment
  PCI: Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters
  PCI: Add PCI_STD_NUM_BARS for the number of standard BARs
  PCI: Fix missing bridge dma_ranges resource list cleanup
  PCI: Protect pci_reassign_bridge_resources() against concurrent addition/removal
2019-11-28 08:54:36 -06:00
YueHaibing
73374b39b0 scsi: megaraid_sas: Make poll_aen_lock static
Fix sparse warning:

drivers/scsi/megaraid/megaraid_sas_base.c:187:12:
 warning: symbol 'poll_aen_lock' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20191125144454.22680-1-yuehaibing@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-26 21:44:31 -05:00
Damien Le Moal
a35989a072 scsi: sd_zbc: Improve report zones error printout
In the case of a report zones command failure, instead of simply printing
the host_byte and driver_byte values returned, print a message that is more
human readable and useful, adding sense codes too.

To do so, use the already defined sd_print_sense_hdr() and
sd_print_result() functions by moving the declaration of these functions
into sd.h.

Link: https://lore.kernel.org/r/20191125070518.951717-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-26 21:43:22 -05:00
Huacai Chen
45dc8f2d9c scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI
Commit 4fa1834559 ("scsi: qla2xxx: Utilize pci_alloc_irq_vectors/
pci_free_irq_vectors calls.") use pci_alloc_irq_vectors() to replace
pci_enable_msi() but it didn't handle the return value correctly. This bug
make qla2x00 always fail to setup MSI if MSI-X fail, so fix it.

BTW, improve the log message of return value in qla2x00_request_irqs() to
avoid confusion.

Fixes: 4fa1834559 ("scsi: qla2xxx: Utilize pci_alloc_irq_vectors/pci_free_irq_vectors calls.")
Cc: Michael Hernandez <michael.hernandez@cavium.com>
Link: https://lore.kernel.org/r/1574314847-14280-1-git-send-email-chenhc@lemote.com
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-26 21:39:03 -05:00
Martin Wilck
c8a3479318 scsi: qla2xxx: unregister ports after GPN_FT failure
When ports are lost due to unzoning them, and the initiator port is
not part of any more zones, the GPN_FT command used for the fabric
scan may fail. In this case, the current code simply gives up after a
few retries. But if the zone is gone, all rports should actually be
marked as lost.

Fix this by jumping to the code that handles logout after GNN_FT after
scan retries are exhausted.

Fixes: f352eeb754 ("scsi: qla2xxx: Add ability to use GPNFT/GNNFT for RSCN handling")
Link: https://lore.kernel.org/r/20191122221912.20100-3-martin.wilck@suse.com
Tested-by: Jason Orendorf <orendorf@hpe.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-26 21:33:56 -05:00
Martin Wilck
d341e9a8f2 scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan
In qla2x00_find_all_fabric_devs(), fcport->flags & FCF_LOGIN_NEEDED is a
necessary condition for logging into new rports, but not for dropping lost
ones.

Fixes: 726b854870 ("qla2xxx: Add framework for async fabric discovery")
Link: https://lore.kernel.org/r/20191122221912.20100-2-martin.wilck@suse.com
Tested-by: David Bond <dbond@suse.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-26 21:33:17 -05:00
YueHaibing
69b41f141d scsi: pm80xx: Remove unused include of linux/version.h
Remove #include <linux/version.h>. Don't need it.

Link: https://lore.kernel.org/r/20191122020911.33269-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-26 21:31:46 -05:00
Colin Ian King
0e7c353e18 scsi: pm80xx: fix logic to break out of loop when register value is 2 or 3
The condition (reg_val != 2) || (reg_val != 3) will always be true because
reg_val cannot be equal to two different values at the same time. Fix this
by replacing the || operator with && so that the loop will loop if reg_val
is not a 2 and not a 3 as was originally intended.

Fixes: 50dc2f221455 ("scsi: pm80xx: Modified the logic to collect fatal dump")
Link: https://lore.kernel.org/r/20191120135031.270708-1-colin.king@canonical.com
Addresses-Coverity: ("Constant expression result")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-26 21:30:12 -05:00
Linus Torvalds
1ae78780ed Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Dynamic tick (nohz) updates, perhaps most notably changes to force
     the tick on when needed due to lengthy in-kernel execution on CPUs
     on which RCU is waiting.

   - Linux-kernel memory consistency model updates.

   - Replace rcu_swap_protected() with rcu_prepace_pointer().

   - Torture-test updates.

   - Documentation updates.

   - Miscellaneous fixes"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
  security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()
  net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()
  net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer()
  net/core: Replace rcu_swap_protected() with rcu_replace_pointer()
  bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
  fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer()
  drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()
  drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer()
  x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer()
  rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
  rcu: Suppress levelspread uninitialized messages
  rcu: Fix uninitialized variable in nocb_gp_wait()
  rcu: Update descriptions for rcu_future_grace_period tracepoint
  rcu: Update descriptions for rcu_nocb_wake tracepoint
  rcu: Remove obsolete descriptions for rcu_barrier tracepoint
  rcu: Ensure that ->rcu_urgent_qs is set before resched IPI
  workqueue: Convert for_each_wq to use built-in list check
  rcu: Several rcu_segcblist functions can be static
  rcu: Remove unused function hlist_bl_del_init_rcu()
  Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch()
  ...
2019-11-26 15:42:43 -08:00
Diego Elio Pettenò
396bbe1427 sr_vendor: support Beurer GL50 evo CD-on-a-chip devices.
The Beurer GL50 evo uses a Cygnal-manufactured CD-on-a-chip that only
accepts a subset of SCSI commands, and supports neither audio commands
nor generic packet commands.

Actually sending those commands bring the device to an unrecoverable
state that causes the device to hang and reset.

To: Jens Axboe <axboe@kernel.dk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-11-26 13:02:26 -07:00
Linus Torvalds
436b2a8039 Printk changes for 5.5
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Merge tag 'printk-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk

Pull printk updates from Petr Mladek:

 - Allow to print symbolic error names via new %pe modifier.

 - Use pr_warn() instead of the remaining pr_warning() calls. Fix
   formatting of the related lines.

 - Add VSPRINTF entry to MAINTAINERS.

* tag 'printk-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: (32 commits)
  checkpatch: don't warn about new vsprintf pointer extension '%pe'
  MAINTAINERS: Add VSPRINTF
  tools lib api: Renaming pr_warning to pr_warn
  ASoC: samsung: Use pr_warn instead of pr_warning
  lib: cpu_rmap: Use pr_warn instead of pr_warning
  trace: Use pr_warn instead of pr_warning
  dma-debug: Use pr_warn instead of pr_warning
  vgacon: Use pr_warn instead of pr_warning
  fs: afs: Use pr_warn instead of pr_warning
  sh/intc: Use pr_warn instead of pr_warning
  scsi: Use pr_warn instead of pr_warning
  platform/x86: intel_oaktrail: Use pr_warn instead of pr_warning
  platform/x86: asus-laptop: Use pr_warn instead of pr_warning
  platform/x86: eeepc-laptop: Use pr_warn instead of pr_warning
  oprofile: Use pr_warn instead of pr_warning
  of: Use pr_warn instead of pr_warning
  macintosh: Use pr_warn instead of pr_warning
  idsn: Use pr_warn instead of pr_warning
  ide: Use pr_warn instead of pr_warning
  crypto: n2: Use pr_warn instead of pr_warning
  ...
2019-11-25 19:40:40 -08:00
John Garry
82ea3e0e12 scsi: scsi_transport_sas: Fix memory leak when removing devices
Removing a non-host rphy causes a memory leak:

root@(none)$ echo 0 > /sys/devices/platform/HISI0162:01/host0/port-0:0/expander-0:0/port-0:0:10/phy-0:0:10/sas_phy/phy-0:0:10/enable
[   79.857888] hisi_sas_v2_hw HISI0162:01: dev[7:1] is gone
root@(none)$ echo scan > /sys/kernel/debug/kmemleak
[  131.656603] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
root@(none)$ more /sys/kernel/debug/kmemleak
unreferenced object 0xffff041da5c66000 (size 256):
  comm "kworker/u128:1", pid 549, jiffies 4294898543 (age 113.728s)
  hex dump (first 32 bytes):
    00 5e c6 a5 1d 04 ff ff 01 00 00 00 00 00 00 00  .^..............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<(____ptrval____)>] kmem_cache_alloc+0x188/0x260
    [<(____ptrval____)>] bsg_setup_queue+0x48/0x1a8
    [<(____ptrval____)>] sas_rphy_add+0x108/0x2d0
    [<(____ptrval____)>] sas_probe_devices+0x168/0x208
    [<(____ptrval____)>] sas_discover_domain+0x660/0x9c8
    [<(____ptrval____)>] process_one_work+0x3f8/0x690
    [<(____ptrval____)>] worker_thread+0x70/0x6a0
    [<(____ptrval____)>] kthread+0x1b8/0x1c0
    [<(____ptrval____)>] ret_from_fork+0x10/0x18
unreferenced object 0xffff041d8c075400 (size 128):
  comm "kworker/u128:1", pid 549, jiffies 4294898543 (age 113.728s)
  hex dump (first 32 bytes):
    00 40 25 97 1d 00 ff ff 00 00 00 00 00 00 00 00  .@%.............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<(____ptrval____)>] __kmalloc_node+0x1a8/0x2c8
    [<(____ptrval____)>] blk_mq_realloc_tag_set_tags.part.70+0x48/0xd8
    [<(____ptrval____)>] blk_mq_alloc_tag_set+0x1dc/0x530
    [<(____ptrval____)>] bsg_setup_queue+0xe8/0x1a8
    [<(____ptrval____)>] sas_rphy_add+0x108/0x2d0
    [<(____ptrval____)>] sas_probe_devices+0x168/0x208
    [<(____ptrval____)>] sas_discover_domain+0x660/0x9c8
    [<(____ptrval____)>] process_one_work+0x3f8/0x690
    [<(____ptrval____)>] worker_thread+0x70/0x6a0
    [<(____ptrval____)>] kthread+0x1b8/0x1c0
    [<(____ptrval____)>] ret_from_fork+0x10/0x18
unreferenced object 0xffff041da5c65e00 (size 256):
  comm "kworker/u128:1", pid 549, jiffies 4294898543 (age 113.728s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<(____ptrval____)>] __kmalloc_node+0x1a8/0x2c8
    [<(____ptrval____)>] blk_mq_alloc_tag_set+0x254/0x530
    [<(____ptrval____)>] bsg_setup_queue+0xe8/0x1a8
    [<(____ptrval____)>] sas_rphy_add+0x108/0x2d0
    [<(____ptrval____)>] sas_probe_devices+0x168/0x208
    [<(____ptrval____)>] sas_discover_domain+0x660/0x9c8
    [<(____ptrval____)>] process_one_work+0x3f8/0x690
    [<(____ptrval____)>] worker_thread+0x70/0x6a0
    [<(____ptrval____)>] kthread+0x1b8/0x1c0
    [<(____ptrval____)>] ret_from_fork+0x10/0x18
root@(none)$

It turns out that we don't clean up the request queue fully for bsg
devices, as the blk mq tags for the request queue are not freed.

Fix by doing the queue removal in one place - in sas_rphy_remove() -
instead of unregistering the queue in sas_rphy_remove() and finally
cleaning up the queue in calling blk_cleanup_queue() from
sas_end_device_release() or sas_expander_release().

Function bsg_remove_queue() can handle a NULL pointer q, so remove the
precheck in sas_rphy_remove().

Fixes: 651a013649 ("scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough")
Link: https://lore.kernel.org/r/1574242755-94156-1-git-send-email-john.garry@huawei.com
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-21 21:12:39 -05:00
James Smart
eede4970fb scsi: lpfc: size cpu map by last cpu id set
Currently the lpfc driver sizes its cpu_map array based on
num_possible_cpus(). However, that can be a value that is less than the
highest cpu id bit that is set. As such, if a thread runs on a cpu with a
larger cpu id, or for_each_possible_cpu() is used, the driver could index
off the end of the array and return garbage or GPF.

The driver maintains its own internal copy of the "num_possible" cpu value
and sizes arrays by it.

Fix by setting the driver's value to the value of the last cpu id bit set
in the possible_mask - plus 1. Thus cpu_map will be sized to allow access
by any cpu id possible.

Link: https://lore.kernel.org/r/20191121175556.18953-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-21 20:49:50 -05:00
Saurav Girepunje
75d886a993 scsi: ibmvscsi_tgt: Remove unneeded variable rc
Variable rc is not modified in ibmvscsis_srp_i_logout function.  So remove
unneeded variable rc.

Issue found using coccicheck tool.

Link: https://lore.kernel.org/r/20191101120407.GA9369@saurav
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-21 20:47:17 -05:00
Dexuan Cui
56fb105859 scsi: storvsc: Add the support of hibernation
When we're in storvsc_suspend(), we're sure the SCSI layer has quiesced the
scsi device by scsi_bus_suspend() -> ... -> scsi_device_quiesce(), so the
low level SCSI adapter driver only needs to suspend/resume its own state.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-21 20:10:44 -05:00
Laurence Oberman
65309ef6b2 scsi: bnx2fc: timeout calculation invalid for bnx2fc_eh_abort()
In the bnx2fc_eh_abort() function there is a calculation for
wait_for_completion that uses a HZ multiplier.  This is incorrect, it
scales the timeout by 1000 seconds instead of converting the ms value to
jiffies.  Therefore change the calculation.

Link: https://lore.kernel.org/r/1574178394-16635-1-git-send-email-loberman@redhat.com
Reported-by: David Jeffery <djeffery@redhat.com>
Reviewed-by: John Pittman <jpittman@redhat.com>
Reviewed-by: Chad Dupuis <cdupuis1@gmail.com>
Signed-off-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 22:31:18 -05:00
Anatol Pomazau
238191d65d scsi: iscsi: Don't send data to unbound connection
If a faulty initiator fails to bind the socket to the iSCSI connection
before emitting a command, for instance, a subsequent send_pdu, it will
crash the kernel due to a null pointer dereference in sock_sendmsg(), as
shown in the log below.  This patch makes sure the bind succeeded before
trying to use the socket.

BUG: kernel NULL pointer dereference, address: 0000000000000018
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.4.0-rc2.iscsi+ #13
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   24.158246] Workqueue: iscsi_q_0 iscsi_xmitworker
[   24.158883] RIP: 0010:apparmor_socket_sendmsg+0x5/0x20
[...]
[   24.161739] RSP: 0018:ffffab6440043ca0 EFLAGS: 00010282
[   24.162400] RAX: ffffffff891c1c00 RBX: ffffffff89d53968 RCX: 0000000000000001
[   24.163253] RDX: 0000000000000030 RSI: ffffab6440043d00 RDI: 0000000000000000
[   24.164104] RBP: 0000000000000030 R08: 0000000000000030 R09: 0000000000000030
[   24.165166] R10: ffffffff893e66a0 R11: 0000000000000018 R12: ffffab6440043d00
[   24.166038] R13: 0000000000000000 R14: 0000000000000000 R15: ffff9d5575a62e90
[   24.166919] FS:  0000000000000000(0000) GS:ffff9d557db80000(0000) knlGS:0000000000000000
[   24.167890] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.168587] CR2: 0000000000000018 CR3: 000000007a838000 CR4: 00000000000006e0
[   24.169451] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.170320] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.171214] Call Trace:
[   24.171537]  security_socket_sendmsg+0x3a/0x50
[   24.172079]  sock_sendmsg+0x16/0x60
[   24.172506]  iscsi_sw_tcp_xmit_segment+0x77/0x120
[   24.173076]  iscsi_sw_tcp_pdu_xmit+0x58/0x170
[   24.173604]  ? iscsi_dbg_trace+0x63/0x80
[   24.174087]  iscsi_tcp_task_xmit+0x101/0x280
[   24.174666]  iscsi_xmit_task+0x83/0x110
[   24.175206]  iscsi_xmitworker+0x57/0x380
[   24.175757]  ? __schedule+0x2a2/0x700
[   24.176273]  process_one_work+0x1b5/0x360
[   24.176837]  worker_thread+0x50/0x3c0
[   24.177353]  kthread+0xf9/0x130
[   24.177799]  ? process_one_work+0x360/0x360
[   24.178401]  ? kthread_park+0x90/0x90
[   24.178915]  ret_from_fork+0x35/0x40
[   24.179421] Modules linked in:
[   24.179856] CR2: 0000000000000018
[   24.180327] ---[ end trace b4b7674b6df5f480 ]---

Signed-off-by: Anatol Pomazau <anatol@google.com>
Co-developed-by: Frank Mayhar <fmayhar@google.com>
Signed-off-by: Frank Mayhar <fmayhar@google.com>
Co-developed-by: Bharath Ravi <rbharath@google.com>
Signed-off-by: Bharath Ravi <rbharath@google.com>
Co-developed-by: Khazhimsel Kumykov <khazhy@google.com>
Signed-off-by: Khazhimsel Kumykov <khazhy@google.com>
Co-developed-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:35 -05:00
Pan Bian
29d28f2b8d scsi: bnx2i: fix potential use after free
The member hba->pcidev may be used after its reference is dropped. Move the
put function to where it is never used to avoid potential use after free
issues.

Fixes: a771718065 ("[SCSI] bnx2i: Removed the reference to the netdev->base_addr")
Link: https://lore.kernel.org/r/1573043541-19126-1-git-send-email-bianpan2016@163.com
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Martin K. Petersen
5a993e507e Revert "scsi: qla2xxx: Fix memory leak when sending I/O fails"
This reverts commit 2f856d4e8c.

This patch was found to introduce a double free regression. The issue
it originally attempted to address was fixed in patch
f45bca8c50 ("scsi: qla2xxx: Fix double scsi_done for abort path").

Link: https://lore.kernel.org/r/4BDE2B95-835F-43BE-A32C-2629D7E03E0A@marvell.com
Requested-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Finn Thain
0b7a223552 scsi: NCR5380: Add disconnect_mask module parameter
Add a module parameter to inhibit disconnect/reselect for individual
targets. This gains compatibility with Aztec PowerMonster SCSI/SATA
adapters with buggy firmware. (No fix is available from the vendor.)

Apparently these adapters pass-through the product/vendor of the attached
SATA device. Since they can't be identified from the response to an INQUIRY
command, a device blacklist flag won't work.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Link: https://lore.kernel.org/r/993b17545990f31f9fa5a98202b51102a68e7594.1573875417.git.fthain@telegraphics.com.au
Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Finn Thain
d04fc41af2 scsi: NCR5380: Unconditionally clear ICR after do_abort()
When do_abort() succeeds, the target will go to BUS FREE phase and there
will be no connected command. Therefore, that function should clear the
Initiator Command Register before returning. It already does so in case of
NCR5380_poll_politely() failure; do the same for the other error case too,
that is, NCR5380_transfer_pio() failure.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Ondrej Zary <linux@zary.sk>
Link: https://lore.kernel.org/r/4277b28ee2551f884aefa85965ef3c498344f301.1573875417.git.fthain@telegraphics.com.au
Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Finn Thain
350767f20b scsi: NCR5380: Call scsi_set_resid() on command completion
Most NCR5380 drivers calculate the residual for every data transfer.
(A few drivers just set it to zero.) Pass this quantity back to the scsi
mid-layer on command completion.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Ondrej Zary <linux@zary.sk>
Link: https://lore.kernel.org/r/1f26ead9dd0dc053fcd27979d69a7ca74b6589b4.1573875417.git.fthain@telegraphics.com.au
Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Maurizio Lombardi
aa5334c4f3 scsi: scsi_debug: num_tgts must be >= 0
Passing the parameter "num_tgts=-1" will start an infinite loop that
exhausts the system memory

Link: https://lore.kernel.org/r/20191115163727.24626-1-mlombard@redhat.com
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
James Smart
4583a4f66b scsi: lpfc: use hdwq assigned cpu for allocation
Looking at the recent conversion from smp_processor_id() to
raw_smp_processor_id(), realized that the allocation should be based on the
cpu the hdwq is bound to, not the executing cpu.

Revise to pull cpu number from the hdwq

Fixes: 765ab6cdac ("scsi: lpfc: Fix a kernel warning triggered by lpfc_get_sgl_per_hdwq()")
Link: https://lore.kernel.org/r/20191116003847.6141-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Colin Ian King
9b44ffab49 scsi: arcmsr: fix indentation issues
There are a few statements that are indented incorrectly, fix these.

Link: https://lore.kernel.org/r/20191114180007.325856-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Pan Bian
3fe3d2428b scsi: qla4xxx: fix double free bug
The variable init_fw_cb is released twice, resulting in a double free
bug. The call to the function dma_free_coherent() before goto is removed to
get rid of potential double free.

Fixes: 2a49a78ed3 ("[SCSI] qla4xxx: added IPv6 support.")
Link: https://lore.kernel.org/r/1572945927-27796-1-git-send-email-bianpan2016@163.com
Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Deepak Ukey
044f59de3a scsi: pm80xx: Modified the logic to collect fatal dump
Added the correct method to collect the fatal dump.

Link: https://lore.kernel.org/r/20191114100910.6153-14-deepak.ukey@microchip.com
Reported-by: kbuild test robot <lkp@intel.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Vikram Auradkar
7295493682 scsi: pm80xx: Tie the interrupt name to the module instance
With MSI-x enabled, the interrupt instances are <prefix><index> where the
prefix is fixed for all module instances, making it a little harder to
track down what's what.

Link: https://lore.kernel.org/r/20191114100910.6153-13-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Vikram Auradkar <auradkar@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:34 -05:00
Deepak Ukey
e2773c67e2 scsi: pm80xx: Controller fatal error through sysfs
Added support to check controller fatal error through sysfs.

Link: https://lore.kernel.org/r/20191114100910.6153-12-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:33 -05:00
peter chang
3e253d9657 scsi: pm80xx: Do not request 12G sas speeds
Occasionally, 6G capable drives fail to train at 6G on links that look good
from a signal-integrity perspective. PMC suggests configuring the port to
not even expect 12G.

Link: https://lore.kernel.org/r/20191114100910.6153-11-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:33 -05:00
peter chang
51c1c5f6ed scsi: pm80xx: Cleanup command when a reset times out
Added the fix so the if driver properly sent the abort it tries to remove
it from the firmware's list of outstanding commands regardless of the abort
status. This means that the task gets freed 'now' rather than possibly
getting freed later when the scsi layer thinks it's leaked but still valid.

Link: https://lore.kernel.org/r/20191114100910.6153-10-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:33 -05:00
peter chang
91a43fa61f scsi: pm80xx: Fix command issue sizing
The commands to the controller are sent in fixed sized chunks which are set
per-chip-generation and stashed in iomb_size. The driver fills in structs
matching the register layout and memcpy this to memory shared with the
controller. However, there are two problem cases:

	1) Things like phy_start_req are too large because they share the
	sas_identify_frame definition with libsas, and it includes the crc
	word. This means that it's overwriting the start of the next
	command block, that's ok except if it happens at the end of the
	shared memory area.

	2) Things like set_nvm_data_req which are shared between the HAL
	layers. This means that it's sending 'random' data for things that
	are in the reserved area. So far we haven't found a case where the
	controller FW cares, but sending possible gibberish (for most of
	the structures this is in the reserved area so previously zeroed)
	is not recommended.

Link: https://lore.kernel.org/r/20191114100910.6153-9-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:33 -05:00
Vikram Auradkar
a88d9db94c scsi: pm80xx: Fix dereferencing dangling pointer
sas_task structure should not be used after task_done is called.  If the
device is gone or not attached, we call task_done on t and continue to use
in the sas_task in rest of the function. task_done is pointing to
sas_ata_task_done, may free the memory associated with the task before
returning.

Link: https://lore.kernel.org/r/20191114100910.6153-8-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Vikram Auradkar <auradkar@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19 21:37:33 -05:00