Commit Graph

558 Commits

Author SHA1 Message Date
Linus Torvalds 746fc76b82 SCSI misc on 20220804
Updates to the usual drivers (ufs, qla2xx, target, lpfc, smartpqi,
 mpi3mr).  The main driver change that might cause issues on down the
 road is the conversion of some of our oldest surviving drivers to the
 DMA API (should only affect m68k).  The only major core change is the
 rework of async resume; the rest are either completely trivial or for
 updating deprecated APIs.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYuvakyYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishfvOAP4m0N6b
 e3JwoBtB1c0JMKv6G4gka8suEG8p5f4khDu8wwD+LfGUCzG49Y5Ts7rByXfEiGgO
 krSdwsAZiV6yKg/HuPw=
 =Ak9L
 -----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:
 "Updates to the usual drivers (ufs, qla2xx, target, lpfc, smartpqi,
  mpi3mr).

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

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

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits)
  scsi: target: Remove XDWRITEREAD emulated support
  scsi: megaraid: Remove the static variable initialisation
  scsi: ch: Do not initialise statics to 0
  scsi: ufs: core: Fix spelling mistake "Cannnot" -> "Cannot"
  scsi: target: iscsi: Do not require target authentication
  scsi: target: iscsi: Allow AuthMethod=None
  scsi: target: iscsi: Support base64 in CHAP
  scsi: target: iscsi: Add support for extended CDB AHS
  scsi: ufs: dt-bindings: Add SC8280XP binding
  scsi: target: iscsi: Fix clang -Wformat warnings
  scsi: ufs: core: Read device property for ref clock
  scsi: libsas: Resume SAS host for phy reset or enable via sysfs
  scsi: hisi_sas: Modify v3 HW SATA completion error processing
  scsi: hisi_sas: Relocate DMA unmap of SMP task
  scsi: hisi_sas: Remove unnecessary variable to hold DMA map elements
  scsi: hisi_sas: Call hisi_sas_slave_configure() from slave_configure_v3_hw()
  scsi: mpi3mr: Delete a stray tab
  scsi: mpi3mr: Unlock on error path
  scsi: mpi3mr: Reduce VD queue depth on detecting throttling
  scsi: mpi3mr: Resource Based Metering
  ...
2022-08-04 19:47:37 -07:00
David Jeffery 0fde22c542 scsi: mpt3sas: Stop fw fault watchdog work item during system shutdown
During system shutdown or reboot, mpt3sas will reset the firmware back to
ready state. However, the driver leaves running a watchdog work item
intended to keep the firmware in operational state. This causes a second,
unneeded reset on shutdown and moves the firmware back to operational
instead of in ready state as intended. And if the mpt3sas_fwfault_debug
module parameter is set, this extra reset also panics the system.

mpt3sas's scsih_shutdown needs to stop the watchdog before resetting the
firmware back to ready state.

Link: https://lore.kernel.org/r/20220722142448.6289-1-djeffery@redhat.com
Fixes: fae21608c3 ("scsi: mpt3sas: Transition IOC to Ready state during shutdown")
Tested-by: Laurence Oberman <loberman@redhat.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: David Jeffery <djeffery@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-26 21:40:43 -04:00
Martin K. Petersen 11e50ed239 Merge branch '5.19/scsi-fixes' into 5.20/scsi-staging
Bring in fixes to resolve a merge conflict in the lpfc driver update.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07 17:20:43 -04:00
Tetsuo Handa 90c3ca3f24 scsi: mpt3sas: Remove flush_scheduled_work() call
It seems to me that mpt3sas driver is using dedicated workqueues and is not
calling schedule{,_delayed}_work{,_on}(). Then, there will be no work to
flush using flush_scheduled_work().

Link: https://lore.kernel.org/r/f3b97c7c-1094-4e46-20d8-4321716d6f3f@I-love.SAKURA.ne.jp
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-21 21:52:44 -04:00
Zhang Jiaming efef34cb45 scsi: mpt3sas: Fix whitespace and spelling mistake
There is a spelling mistake in _base_sas_ioc_info(). Change 'cant' to
'can't'.

Also fix up whitespace.

Link: https://lore.kernel.org/r/20220617101103.3162-1-jiaming@nfschina.com
Signed-off-by: Zhang Jiaming <jiaming@nfschina.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-21 21:31:44 -04:00
Ren Yu 13d2d34287 scsi: mpt3sas: Fix typo in comment
Spelling mistake in comment: non-succesfull -> non-successful.

Link: https://lore.kernel.org/r/20220617081557.9009-1-renyu@nfschina.com
Signed-off-by: Ren Yu <renyu@nfschina.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-21 21:29:35 -04:00
Helge Deller 120f1d95ef scsi: mpt3sas: Fix out-of-bounds compiler warning
I'm facing this warning when building for the parisc64 architecture:

drivers/scsi/mpt3sas/mpt3sas_base.c: In function ‘_base_make_ioc_operational’:
drivers/scsi/mpt3sas/mpt3sas_base.c:5396:40: warning: array subscript ‘Mpi2SasIOUnitPage1_t {aka struct _MPI2_CONFIG_PAGE_SASIOUNIT_1}[0]’ is partly outside array bounds of ‘unsigned char[20]’ [-Warray-bounds]
 5396 |             (le16_to_cpu(sas_iounit_pg1->SASWideMaxQueueDepth)) ?
drivers/scsi/mpt3sas/mpt3sas_base.c:5382:26: note: referencing an object of size 20 allocated by ‘kzalloc’
 5382 |         sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
      |                          ^~~~~~~~~~~~~~~~~~~~~~~

The problem is, that only 20 bytes are allocated with kmalloc(), which is
sufficient to hold the bytes which are needed.  Nevertheless, gcc complains
because the whole Mpi2SasIOUnitPage1_t struct is 32 bytes in size and thus
doesn't fit into those 20 bytes.

This patch simply allocates all 32 bytes (instead of 20) and thus avoids
the warning. There is no functional change introduced by this patch.

While touching the code I cleaned up to calculation of max_wideport_qd,
max_narrowport_qd and max_sata_qd to make it easier readable.

Test successfully tested on a HP C8000 PA-RISC workstation with 64-bit
kernel.

Link: https://lore.kernel.org/r/YpZ197iZdDZSCzrT@p100
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-07 22:01:41 -04:00
Sreekanth Reddy 53d5088def scsi: mpt3sas: Update driver version to 42.100.00.00
Update driver version to 42.100.00.00.

Link: https://lore.kernel.org/r/20220511072621.30657-2-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-19 20:16:25 -04:00
Sreekanth Reddy 8e129add48 scsi: mpt3sas: Fix junk chars displayed while printing ChipName
Terminate string after copying 16 bytes of ChipName data from Manufacturing
Page0 to prevent %s from printing junk characters.

Link: https://lore.kernel.org/r/20220511072621.30657-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-19 20:16:25 -04:00
Martin K. Petersen dc1178767c scsi: mpt3sas: Use cached ATA Information VPD page
We now cache VPD page 0x89 (ATA Information) so there is no need to request
it from the hardware. Make mpt3sas use the cached page.

Link: https://lore.kernel.org/r/20220302053559.32147-2-martin.petersen@oracle.com
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02 16:59:10 -04:00
Damien Le Moal fe413ab32b scsi: mpt3sas: Fix adapter replyPostRegisterIndex declaration
The replyPostRegisterIndex array of struct MPT3SAS_ADAPTER stores iomem
resource addresses. Fix its declaration to annotate it with __iomem to
avoid sparse warnings for writel() calls using the stored addresses.

Link: https://lore.kernel.org/r/20220307234854.148145-6-damien.lemoal@opensource.wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 22:30:05 -04:00
Damien Le Moal 82b4420c28 scsi: mpt3sas: Fix event callback log_code value handling
In mpt3sas_scsih_event_callback(), fix a sparse warning when testing the
event log code value by replacing the use of a pointer to the address
storing the event log code with a log code local variable. Doing so,
le32_to_cpu() is used when the log code value is assigned, avoiding a
sparse warning.

Link: https://lore.kernel.org/r/20220307234854.148145-5-damien.lemoal@opensource.wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 22:30:04 -04:00
Damien Le Moal 7ab4d2441b scsi: mpt3sas: Fix ioc->base_readl() use
The functions _base_readl_aero() and _base_readl() used for an adapter
base_readl() method are implemented using a regular readl() call which
internally performs a conversion to CPU endianness (le32_to_cpu()) of
the values read. The users of the ioc base_readl() method should thus
not convert again the values read using le16_to_cpu().
Fixing this removes sparse warnings.

Link: https://lore.kernel.org/r/20220307234854.148145-4-damien.lemoal@opensource.wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 22:30:04 -04:00
Damien Le Moal b4efbec4c2 scsi: mpt3sas: Fix writel() use
writel() internally executes cpu_to_le32() to convert the value being
written to little endian. The caller should thus not use this conversion
function for the value passed to writel(). Remove the cpu_to_le32() calls
in _base_put_smid_scsi_io_atomic(), _base_put_smid_fast_path_atomic(),
_base_put_smid_hi_priority_atomic() _base_put_smid_default_atomic() and
_base_handshake_req_reply_wait().

Link: https://lore.kernel.org/r/20220307234854.148145-3-damien.lemoal@opensource.wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 22:30:04 -04:00
Damien Le Moal dceaef94a4 scsi: mpt3sas: Fix _ctl_set_task_mid() TaskMID check
The TaskMID field of struct Mpi2SCSITaskManagementRequest_t is a 16-bit
little endian value. Fix the search loop in _ctl_set_task_mid() to add a
cpu_to_le16() conversion before checking the value of TaskMID to avoid
sparse warnings. While at it, simplify the search loop code to remove an
unnecessarily complicated if condition.

Link: https://lore.kernel.org/r/20220307234854.148145-2-damien.lemoal@opensource.wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 22:30:04 -04:00
Sreekanth Reddy f61eb1216c scsi: mpt3sas: Fail reset operation if config request timed out
As part of controller reset operation the driver issues a config request
command. If this command gets times out, then fail the controller reset
operation instead of retrying it.

Link: https://lore.kernel.org/r/20220405120637.20528-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-06 22:14:09 -04:00
Damien Le Moal 6eaa77144b scsi: mpt3sas: Fix mpt3sas_check_same_4gb_region() kdoc comment
The start_addres argument of mpt3sas_check_same_4gb_region() was misnamed
in the function kdoc comment, resulting in the following warning when
compiling with W=1.

drivers/scsi/mpt3sas/mpt3sas_base.c:5728: warning: Function parameter or
member 'start_address' not described in 'mpt3sas_check_same_4gb_region'
drivers/scsi/mpt3sas/mpt3sas_base.c:5728: warning: Excess function
parameter 'reply_pool_start_address' description in
'mpt3sas_check_same_4gb_region'

Fix the argument name in the function kdoc comment to avoid it. While at
it, remove a useless blank line between the kdoc and function code.

Link: https://lore.kernel.org/r/20220404050041.594774-1-damien.lemoal@opensource.wdc.com
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-06 22:07:30 -04:00
Martin K. Petersen 5f3ecd7447 Merge branch '5.18/scsi-queue' into 5.18/scsi-fixes
Pull the remaining commits from 5.18/scsi-queue into fixes.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-06 21:46:54 -04:00
Damien Le Moal 87d663d408 scsi: mpt3sas: Fix use after free in _scsih_expander_node_remove()
The function mpt3sas_transport_port_remove() called in
_scsih_expander_node_remove() frees the port field of the sas_expander
structure, leading to the following use-after-free splat from KASAN when
the ioc_info() call following that function is executed (e.g. when doing
rmmod of the driver module):

[ 3479.371167] ==================================================================
[ 3479.378496] BUG: KASAN: use-after-free in _scsih_expander_node_remove+0x710/0x750 [mpt3sas]
[ 3479.386936] Read of size 1 at addr ffff8881c037691c by task rmmod/1531
[ 3479.393524]
[ 3479.395035] CPU: 18 PID: 1531 Comm: rmmod Not tainted 5.17.0-rc8+ #1436
[ 3479.401712] Hardware name: Supermicro Super Server/H12SSL-NT, BIOS 2.1 06/02/2021
[ 3479.409263] Call Trace:
[ 3479.411743]  <TASK>
[ 3479.413875]  dump_stack_lvl+0x45/0x59
[ 3479.417582]  print_address_description.constprop.0+0x1f/0x120
[ 3479.423389]  ? _scsih_expander_node_remove+0x710/0x750 [mpt3sas]
[ 3479.429469]  kasan_report.cold+0x83/0xdf
[ 3479.433438]  ? _scsih_expander_node_remove+0x710/0x750 [mpt3sas]
[ 3479.439514]  _scsih_expander_node_remove+0x710/0x750 [mpt3sas]
[ 3479.445411]  ? _raw_spin_unlock_irqrestore+0x2d/0x40
[ 3479.452032]  scsih_remove+0x525/0xc90 [mpt3sas]
[ 3479.458212]  ? mpt3sas_expander_remove+0x1d0/0x1d0 [mpt3sas]
[ 3479.465529]  ? down_write+0xde/0x150
[ 3479.470746]  ? up_write+0x14d/0x460
[ 3479.475840]  ? kernfs_find_ns+0x137/0x310
[ 3479.481438]  pci_device_remove+0x65/0x110
[ 3479.487013]  __device_release_driver+0x316/0x680
[ 3479.493180]  driver_detach+0x1ec/0x2d0
[ 3479.498499]  bus_remove_driver+0xe7/0x2d0
[ 3479.504081]  pci_unregister_driver+0x26/0x250
[ 3479.510033]  _mpt3sas_exit+0x2b/0x6cf [mpt3sas]
[ 3479.516144]  __x64_sys_delete_module+0x2fd/0x510
[ 3479.522315]  ? free_module+0xaa0/0xaa0
[ 3479.527593]  ? __cond_resched+0x1c/0x90
[ 3479.532951]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
[ 3479.539607]  ? syscall_enter_from_user_mode+0x21/0x70
[ 3479.546161]  ? trace_hardirqs_on+0x1c/0x110
[ 3479.551828]  do_syscall_64+0x35/0x80
[ 3479.556884]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 3479.563402] RIP: 0033:0x7f1fc482483b
...
[ 3479.943087] ==================================================================

Fix this by introducing the local variable port_id to store the port ID
value before executing mpt3sas_transport_port_remove(). This local variable
is then used in the call to ioc_info() instead of dereferencing the freed
port structure.

Link: https://lore.kernel.org/r/20220322055702.95276-1-damien.lemoal@opensource.wdc.com
Fixes: 7d310f2410 ("scsi: mpt3sas: Get device objects using sas_address & portID")
Cc: stable@vger.kernel.org
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-29 22:53:24 -04:00
Linus Torvalds 6f2689a766 SCSI misc on 20220324
This series consists of the usual driver updates (qla2xxx, pm8001,
 libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates
 and bug fixes.  The high blast radius core update is the removal of
 write same, which affects block and several non-SCSI devices.  The
 other big change, which is more local, is the removal of the SCSI
 pointer.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYjzDQyYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishQMYAQDEWUGV
 6U0+736AHVtOfiMNfiRN79B1HfXVoHvemnPcTwD/UlndwFfy/3GGOtoZmqEpc73J
 Ec1HDuUCE18H1H2QAh0=
 =/Ty9
 -----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 series consists of the usual driver updates (qla2xxx, pm8001,
  libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates
  and bug fixes.

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

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (281 commits)
  scsi: scsi_ioctl: Drop needless assignment in sg_io()
  scsi: bsg: Drop needless assignment in scsi_bsg_sg_io_fn()
  scsi: lpfc: Copyright updates for 14.2.0.0 patches
  scsi: lpfc: Update lpfc version to 14.2.0.0
  scsi: lpfc: SLI path split: Refactor BSG paths
  scsi: lpfc: SLI path split: Refactor Abort paths
  scsi: lpfc: SLI path split: Refactor SCSI paths
  scsi: lpfc: SLI path split: Refactor CT paths
  scsi: lpfc: SLI path split: Refactor misc ELS paths
  scsi: lpfc: SLI path split: Refactor VMID paths
  scsi: lpfc: SLI path split: Refactor FDISC paths
  scsi: lpfc: SLI path split: Refactor LS_RJT paths
  scsi: lpfc: SLI path split: Refactor LS_ACC paths
  scsi: lpfc: SLI path split: Refactor the RSCN/SCR/RDF/EDC/FARPR paths
  scsi: lpfc: SLI path split: Refactor PLOGI/PRLI/ADISC/LOGO paths
  scsi: lpfc: SLI path split: Refactor base ELS paths and the FLOGI path
  scsi: lpfc: SLI path split: Introduce lpfc_prep_wqe
  scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4
  scsi: lpfc: SLI path split: Refactor lpfc_iocbq
  scsi: lpfc: Use kcalloc()
  ...
2022-03-24 19:37:53 -07:00
Matt Lupfer 69ad4ef868 scsi: mpt3sas: Page fault in reply q processing
A page fault was encountered in mpt3sas on a LUN reset error path:

[  145.763216] mpt3sas_cm1: Task abort tm failed: handle(0x0002),timeout(30) tr_method(0x0) smid(3) msix_index(0)
[  145.778932] scsi 1:0:0:0: task abort: FAILED scmd(0x0000000024ba29a2)
[  145.817307] scsi 1:0:0:0: attempting device reset! scmd(0x0000000024ba29a2)
[  145.827253] scsi 1:0:0:0: [sg1] tag#2 CDB: Receive Diagnostic 1c 01 01 ff fc 00
[  145.837617] scsi target1:0:0: handle(0x0002), sas_address(0x500605b0000272b9), phy(0)
[  145.848598] scsi target1:0:0: enclosure logical id(0x500605b0000272b8), slot(0)
[  149.858378] mpt3sas_cm1: Poll ReplyDescriptor queues for completion of smid(0), task_type(0x05), handle(0x0002)
[  149.875202] BUG: unable to handle page fault for address: 00000007fffc445d
[  149.885617] #PF: supervisor read access in kernel mode
[  149.894346] #PF: error_code(0x0000) - not-present page
[  149.903123] PGD 0 P4D 0
[  149.909387] Oops: 0000 [#1] PREEMPT SMP NOPTI
[  149.917417] CPU: 24 PID: 3512 Comm: scsi_eh_1 Kdump: loaded Tainted: G S         O      5.10.89-altav-1 #1
[  149.934327] Hardware name: DDN           200NVX2             /200NVX2-MB          , BIOS ATHG2.2.02.01 09/10/2021
[  149.951871] RIP: 0010:_base_process_reply_queue+0x4b/0x900 [mpt3sas]
[  149.961889] Code: 0f 84 22 02 00 00 8d 48 01 49 89 fd 48 8d 57 38 f0 0f b1 4f 38 0f 85 d8 01 00 00 49 8b 45 10 45 31 e4 41 8b 55 0c 48 8d 1c d0 <0f> b6 03 83 e0 0f 3c 0f 0f 85 a2 00 00 00 e9 e6 01 00 00 0f b7 ee
[  149.991952] RSP: 0018:ffffc9000f1ebcb8 EFLAGS: 00010246
[  150.000937] RAX: 0000000000000055 RBX: 00000007fffc445d RCX: 000000002548f071
[  150.011841] RDX: 00000000ffff8881 RSI: 0000000000000001 RDI: ffff888125ed50d8
[  150.022670] RBP: 0000000000000000 R08: 0000000000000000 R09: c0000000ffff7fff
[  150.033445] R10: ffffc9000f1ebb68 R11: ffffc9000f1ebb60 R12: 0000000000000000
[  150.044204] R13: ffff888125ed50d8 R14: 0000000000000080 R15: 34cdc00034cdea80
[  150.054963] FS:  0000000000000000(0000) GS:ffff88dfaf200000(0000) knlGS:0000000000000000
[  150.066715] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  150.076078] CR2: 00000007fffc445d CR3: 000000012448a006 CR4: 0000000000770ee0
[  150.086887] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  150.097670] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  150.108323] PKRU: 55555554
[  150.114690] Call Trace:
[  150.120497]  ? printk+0x48/0x4a
[  150.127049]  mpt3sas_scsih_issue_tm.cold.114+0x2e/0x2b3 [mpt3sas]
[  150.136453]  mpt3sas_scsih_issue_locked_tm+0x86/0xb0 [mpt3sas]
[  150.145759]  scsih_dev_reset+0xea/0x300 [mpt3sas]
[  150.153891]  scsi_eh_ready_devs+0x541/0x9e0 [scsi_mod]
[  150.162206]  ? __scsi_host_match+0x20/0x20 [scsi_mod]
[  150.170406]  ? scsi_try_target_reset+0x90/0x90 [scsi_mod]
[  150.178925]  ? blk_mq_tagset_busy_iter+0x45/0x60
[  150.186638]  ? scsi_try_target_reset+0x90/0x90 [scsi_mod]
[  150.195087]  scsi_error_handler+0x3a5/0x4a0 [scsi_mod]
[  150.203206]  ? __schedule+0x1e9/0x610
[  150.209783]  ? scsi_eh_get_sense+0x210/0x210 [scsi_mod]
[  150.217924]  kthread+0x12e/0x150
[  150.224041]  ? kthread_worker_fn+0x130/0x130
[  150.231206]  ret_from_fork+0x1f/0x30

This is caused by mpt3sas_base_sync_reply_irqs() using an invalid reply_q
pointer outside of the list_for_each_entry() loop. At the end of the full
list traversal the pointer is invalid.

Move the _base_process_reply_queue() call inside of the loop.

Link: https://lore.kernel.org/r/d625deae-a958-0ace-2ba3-0888dd0a415b@ddn.com
Fixes: 711a923c14 ("scsi: mpt3sas: Postprocessing of target and LUN reset")
Cc: stable@vger.kernel.org
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Matt Lupfer <mlupfer@ddn.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-14 23:45:19 -04:00
Sreekanth Reddy 208cc9fe6f scsi: mpt3sas: Fix incorrect 4GB boundary check
The driver must perform its 4GB boundary check using the pool's DMA address
instead of using the virtual address.

Link: https://lore.kernel.org/r/20220303140230.13098-1-sreekanth.reddy@broadcom.com
Fixes: d6adc251dd ("scsi: mpt3sas: Force PCIe scatterlist allocations to be within same 4 GB region")
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-08 22:37:22 -05:00
Sreekanth Reddy 0c25422d34 scsi: mpt3sas: Remove scsi_dma_map() error messages
When scsi_dma_map() fails by returning a sges_left value less than zero,
the amount of logging produced can be extremely high.  In a recent end-user
environment, 1200 messages per second were being sent to the log buffer.
This eventually overwhelmed the system and it stalled.

These error messages are not needed. Remove them.

Link: https://lore.kernel.org/r/20220303140203.12642-1-sreekanth.reddy@broadcom.com
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-08 22:34:46 -05:00
Kees Cook d20b3dae63 scsi: mpt3sas: Convert to flexible arrays
This converts to a flexible array instead of the old-style 1-element
arrays. The existing code already did the correct math for finding the size
of the resulting flexible array structure, so there is no binary
difference.

The other two structures converted to use flexible arrays appear to have no
users at all.

Link: https://lore.kernel.org/r/20220201223948.1455637-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-07 23:16:34 -05:00
Linus Torvalds 369af20a2c SCSI misc on 20220121
This series is all the stragglers that didn't quite make the first
 merge window pull.  It's mostly minor updates and bug fixes of merge
 window code.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYetVgSYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishfElAQD/OZPx
 dceTIXQixYGuHhGI3Il8O5ASYQVIU86gv+jRrgEA/MN4EWj4VsYaocrUdtTCBON1
 wJYcC7VUekfNBX6KdeY=
 =DcbH
 -----END PGP SIGNATURE-----

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

Pull more SCSI updates from James Bottomley:
 "This series is all the stragglers that didn't quite make the first
  merge window pull. It's mostly minor updates and bug fixes of merge
  window code"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: nsp_cs: Check of ioremap return value
  scsi: ufs: ufs-mediatek: Fix error checking in ufs_mtk_init_va09_pwr_ctrl()
  scsi: ufs: Modify Tactive time setting conditions
  scsi: efct: Remove useless DMA-32 fallback configuration
  scsi: message: fusion: mptctl: Use dma_alloc_coherent()
  scsi: message: fusion: mptsas: Use dma_alloc_coherent()
  scsi: message: fusion: Use dma_alloc_coherent() in mptsas_exp_repmanufacture_info()
  scsi: message: fusion: mptbase: Use dma_alloc_coherent()
  scsi: message: fusion: Use dma_alloc_coherent() in mpt_alloc_fw_memory()
  scsi: message: fusion: Remove usage of the deprecated "pci-dma-compat.h" API
  scsi: megaraid: Avoid mismatched storage type sizes
  scsi: hisi_sas: Remove unused variable and check in hisi_sas_send_ata_reset_each_phy()
  scsi: aic79xx: Remove redundant error variable
  scsi: pm80xx: Port reset timeout error handling correction
  scsi: mpi3mr: Fix formatting problems in some kernel-doc comments
  scsi: mpi3mr: Fix some spelling mistakes
  scsi: mpt3sas: Update persistent trigger pages from sysfs interface
  scsi: core: Fix scsi_mode_select() interface
  scsi: aacraid: Fix spelling of "its"
  scsi: qedf: Fix potential dereference of NULL pointer
2022-01-22 10:24:02 +02:00
Suganath Prabu S 9211faa39a scsi: mpt3sas: Update persistent trigger pages from sysfs interface
Store sysfs-provided trigger values into the corresponding persistent
trigger pages. Otherwise trigger entries are not persistent across system
reboots.

Link: https://lore.kernel.org/r/20211227053055.289537-1-suganath-prabu.subramani@broadcom.com
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-05 00:31:39 -05:00
Nitesh Narayan Lal fdb8ed13a7 scsi: mpt3sas: Use irq_set_affinity_and_hint()
The driver uses irq_set_affinity_hint() specifically for the high IOPS
queue interrupts for two purposes:

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

 - To apply an affinity that it provides

The driver enforces its own affinity to bind the high IOPS queue interrupts
to the local NUMA node. However, irq_set_affinity_hint() applying the
provided cpumask as an affinity (if not NULL) for the interrupt is an
undocumented side effect.

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

Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Link: https://lore.kernel.org/r/20210903152430.244937-6-nitesh@redhat.com
2021-12-10 20:47:38 +01:00
Sreekanth Reddy 5ecae9f8c7 scsi: mpt3sas: Fix incorrect system timestamp
For updating the IOC firmware's timestamp with system timestamp, the driver
issues the Mpi26IoUnitControlRequest message. While framing the
Mpi26IoUnitControlRequest, the driver should copy the lower 32 bits of the
current timestamp into IOCParameterValue field and the higher 32 bits into
Reserved7 field.

Link: https://lore.kernel.org/r/20211117123215.25487-1-sreekanth.reddy@broadcom.com
Fixes: f98790c003 ("scsi: mpt3sas: Sync time periodically between driver and firmware")
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-18 22:44:11 -05:00
Sreekanth Reddy 91202a01a2 scsi: mpt3sas: Fix system going into read-only mode
While determining the SAS address of a drive, the driver checks whether the
handle number is less than the HBA phy count or not. If the handle number
is less than the HBA phy count then driver assumes that this handle belongs
to HBA and hence it assigns the HBA SAS address.

During IOC firmware downgrade operation, if the number of HBA phys is
reduced and the OS drive's device handle drops below the phy count while
determining the drive's SAS address, the driver ends up using the HBA's SAS
address. This leads to a mismatch of drive's SAS address and hence the
driver unregisters the OS drive and the system goes into read-only mode.

Update the IOC's num_phys to the HBA phy count provided by actual loaded
firmware.

Link: https://lore.kernel.org/r/20211117105058.3505-1-sreekanth.reddy@broadcom.com
Fixes: a5e99fda01 ("scsi: mpt3sas: Update hba_port objects after host reset")
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-18 22:38:59 -05:00
Sreekanth Reddy 0ee4ba13e0 scsi: mpt3sas: Fix kernel panic during drive powercycle test
While looping over shost's sdev list it is possible that one
of the drives is getting removed and its sas_target object is
freed but its sdev object remains intact.

Consequently, a kernel panic can occur while the driver is trying to access
the sas_address field of sas_target object without also checking the
sas_target object for NULL.

Link: https://lore.kernel.org/r/20211117104909.2069-1-sreekanth.reddy@broadcom.com
Fixes: f92363d123 ("[SCSI] mpt3sas: add new driver supporting 12GB SAS")
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-18 22:25:06 -05:00
Linus Torvalds fe91c4725a SCSI misc on 20211105
This series consists of the usual driver updates (ufs, smartpqi, lpfc,
 target, megaraid_sas, hisi_sas, qla2xxx) and minor updates and bug
 fixes.  Notable core changes are the removal of scsi->tag which caused
 some churn in obsolete drivers and a sweep through all drivers to call
 scsi_done() directly instead of scsi->done() which removes a pointer
 indirection from the hot path and a move to register core sysfs files
 earlier, which means they're available to KOBJ_ADD processing, which
 necessitates switching all drivers to using attribute groups.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYYUfBCYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishbUJAQDZt4oc
 vUx9JpyrdHxxTCuOzVFd8W1oJn0k5ltCBuz4yAD8DNbGhGm93raMSJ3FOOlzLEbP
 RG8vBdpxMudlvxAPi/A=
 =BSFz
 -----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 consists of the usual driver updates (ufs, smartpqi, lpfc,
  target, megaraid_sas, hisi_sas, qla2xxx) and minor updates and bug
  fixes.

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

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
  scsi: lpfc: Update lpfc version to 14.0.0.3
  scsi: lpfc: Allow fabric node recovery if recovery is in progress before devloss
  scsi: lpfc: Fix link down processing to address NULL pointer dereference
  scsi: lpfc: Allow PLOGI retry if previous PLOGI was aborted
  scsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine
  scsi: lpfc: Correct sysfs reporting of loop support after SFP status change
  scsi: lpfc: Wait for successful restart of SLI3 adapter during host sg_reset
  scsi: lpfc: Revert LOG_TRACE_EVENT back to LOG_INIT prior to driver_resource_setup()
  scsi: ufs: ufshcd-pltfrm: Fix memory leak due to probe defer
  scsi: ufs: mediatek: Avoid sched_clock() misuse
  scsi: mpt3sas: Make mpt3sas_dev_attrs static
  scsi: scsi_transport_sas: Add 22.5 Gbps link rate definitions
  scsi: target: core: Stop using bdevname()
  scsi: aha1542: Use memcpy_{from,to}_bvec()
  scsi: sr: Add error handling support for add_disk()
  scsi: sd: Add error handling support for add_disk()
  scsi: target: Perform ALUA group changes in one step
  scsi: target: Replace lun_tg_pt_gp_lock with rcu in I/O path
  scsi: target: Fix alua_tg_pt_gps_count tracking
  scsi: target: Fix ordered tag handling
  ...
2021-11-05 08:42:02 -07:00
Martin K. Petersen 61a9f252c1 scsi: mpt3sas: Fix reference tag handling for WRITE_INSERT
Testing revealed a problem with how the reference tag was handled for
a WRITE_INSERT operation. The SCSI_PROT_REF_CHECK flag is not set when
the controller is asked to generate the protection information
(i.e. not DIX). And as a result the initial reference tag would not be
set in the WRITE_INSERT case.

Separate handling of the REF_CHECK and REF_INCREMENT flags to align
with both the DIX spec and the MPI implementation.

Link: https://lore.kernel.org/r/20211028034202.24225-1-martin.petersen@oracle.com
Fixes: b3e2c72af1 ("scsi: mpt3sas: Use the proper SCSI midlayer interfaces for PI")
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-29 14:03:58 -04:00
Jiapeng Chong 0ae8f47851 scsi: mpt3sas: Make mpt3sas_dev_attrs static
This symbol is not used outside of mpt3sas_ctl.c, mark it static.

Fixes the following sparse warning:

drivers/scsi/mpt3sas/mpt3sas_ctl.c:3988:18: warning: symbol
'mpt3sas_dev_attrs' was not declared. Should it be static?

Link: https://lore.kernel.org/r/1634639239-2892-1-git-send-email-jiapeng.chong@linux.alibaba.com
Fixes: 1bb3ca27d2 ("scsi: mpt3sas: Switch to attribute groups")
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-20 22:57:27 -04:00
Bart Van Assche 1bb3ca27d2 scsi: mpt3sas: Switch to attribute groups
struct device supports attribute groups directly but does not support
struct device_attribute directly. Hence switch to attribute groups.

Link: https://lore.kernel.org/r/20211012233558.4066756-30-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:45:57 -04:00
Bart Van Assche b0c3007922 scsi: mpt3sas: Call scsi_done() directly
Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Link: https://lore.kernel.org/r/20211007202923.2174984-53-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16 21:29:15 -04:00
Colin Ian King 04c260bdae scsi: mpt3sas: Clean up some inconsistent indenting
There are a couple of statements where the indentation is not correct,
clean these up. Remove a redundant break statement.

Link: https://lore.kernel.org/r/20210902224215.57286-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13 22:15:51 -04:00
Sreekanth Reddy e4953a9310 scsi: mpt3sas: Call cpu_relax() before calling udelay()
Call cpu_relax() while waiting for the current blk-mq polling instance to
complete.

Link: https://lore.kernel.org/r/20210901152542.27866-1-sreekanth.reddy@broadcom.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13 22:15:44 -04:00
Linus Torvalds a9c9a6f741 SCSI misc on 20210902
This series consists of the usual driver updates (ufs, qla2xxx,
 target, smartpqi, lpfc, mpt3sas).  The core change causing the most
 churn was replacing the command request field request with a macro,
 allowing us to offset map to it and remove the redundant field; the
 same was also done for the tag field.  The most impactful change is
 the final removal of scsi_ioctl, which has been deprecated for over a
 decade.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYTD/TiYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishdUkAQCjb3Ux
 4K9438mMelHlzM4er1S1IJ0WNnvObaVMNO9LBwD+JUz+rHsrKvuEX9j3g3C3u6JH
 hC3BUEW8f2LLnujWanQ=
 =lC5o
 -----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 series consists of the usual driver updates (ufs, qla2xxx,
  target, smartpqi, lpfc, mpt3sas).

  The core change causing the most churn was replacing the command
  request field request with a macro, allowing us to offset map to it
  and remove the redundant field; the same was also done for the tag
  field.

  The most impactful change is the final removal of scsi_ioctl, which
  has been deprecated for over a decade"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (293 commits)
  scsi: ufs: Fix ufshcd_request_sense_async() for Samsung KLUFG8RHDA-B2D1
  scsi: ufs: ufs-exynos: Fix static checker warning
  scsi: mpt3sas: Use the proper SCSI midlayer interfaces for PI
  scsi: lpfc: Use the proper SCSI midlayer interfaces for PI
  scsi: lpfc: Copyright updates for 14.0.0.1 patches
  scsi: lpfc: Update lpfc version to 14.0.0.1
  scsi: lpfc: Add bsg support for retrieving adapter cmf data
  scsi: lpfc: Add cmf_info sysfs entry
  scsi: lpfc: Add debugfs support for cm framework buffers
  scsi: lpfc: Add support for maintaining the cm statistics buffer
  scsi: lpfc: Add rx monitoring statistics
  scsi: lpfc: Add support for the CM framework
  scsi: lpfc: Add cmfsync WQE support
  scsi: lpfc: Add support for cm enablement buffer
  scsi: lpfc: Add cm statistics buffer support
  scsi: lpfc: Add EDC ELS support
  scsi: lpfc: Expand FPIN and RDF receive logging
  scsi: lpfc: Add MIB feature enablement support
  scsi: lpfc: Add SET_HOST_DATA mbox cmd to pass date/time info to firmware
  scsi: fc: Add EDC ELS definition
  ...
2021-09-02 15:09:46 -07:00
Martin K. Petersen b3e2c72af1 scsi: mpt3sas: Use the proper SCSI midlayer interfaces for PI
Use the SCSI midlayer interfaces to query protection interval, reference
tag, and per-command DIX flags.

Link: https://lore.kernel.org/r/20210817025014.12085-2-martin.petersen@oracle.com
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-24 23:10:14 -04:00
Martin K. Petersen 315480209b Merge branch '5.14/scsi-fixes' into 5.15/scsi-staging
Resolve mpt3sas conflict between 5.14/scsi-fixes and 5.15/scsi-staging
reported by sfr.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-11 22:37:22 -04:00
Bart Van Assche 24b3c922bc scsi: mpt3sas: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
Prepare for removal of the request pointer by using scsi_cmd_to_rq()
instead. This patch does not change any functionality.

Link: https://lore.kernel.org/r/20210809230355.8186-31-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-11 22:25:40 -04:00
Colin Ian King 40d3272793 scsi: mpt3sas: Fix incorrectly assigned error return and check
Currently the call to _base_static_config_pages() is assigning the error
return to variable 'rc' but checking the error return in error 'r'. Fix
this by assigning the error return to variable 'r' instead of 'rc'.

Link: https://lore.kernel.org/r/20210804134940.114011-1-colin.king@canonical.com
Fixes: 19a622c39a ("scsi: mpt3sas: Handle firmware faults during first half of IOC init")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")
2021-08-09 23:46:19 -04:00
Damien Le Moal 4758fd91d5 scsi: mpt3sas: Introduce sas_ncq_prio_supported sysfs sttribute
Similarly to AHCI, introduce the device sysfs attribute
sas_ncq_prio_supported to advertise if a SATA device supports the NCQ
priority feature. Without this new attribute, the user can only discover if
a SATA device supports NCQ priority by trying to enable the feature use
with the sas_ncq_prio_enable sysfs device attribute, which fails when the
device does not support high prioity commands.

Link: https://lore.kernel.org/r/20210807041859.579409-11-damien.lemoal@wdc.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-09 23:10:58 -04:00
Suganath Prabu S cdc1767698 scsi: mpt3sas: Update driver version to 39.100.00.00
Update driver version to 39.100.00.00.

Link: https://lore.kernel.org/r/20210809072639.21228-3-suganath-prabu.subramani@broadcom.com
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-09 23:07:04 -04:00
Suganath Prabu S 787f2448c2 scsi: mpt3sas: Use firmware recommended queue depth
Currently, the mpt3sas driver sets the default queue depth based on the
physical interface of the attached device:

 - SAS : 254
 - SATA:  32
 - NVMe: 128

The IOC firmware provides a recommended queue depth for each device through
SAS IO Unit Page1 for SAS/SATA and PCIe IO Unit Page 1 for NVMe devices.

If the host sets the queue depth greater than the firmware recommended
value, then the IOC places the I/Os above the recommended queue depth in an
internal pending queue. This consumes outstanding host-credit/resources,
thereby leading to potential starvation of other devices.

To avoid this, use the device depth recommended by the IOC firmware.

Link: https://lore.kernel.org/r/20210809072639.21228-2-suganath-prabu.subramani@broadcom.com
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-09 23:07:04 -04:00
Sreekanth Reddy 44f88ef3c9 scsi: mpt3sas: Bump driver version to 38.100.00.00
Bump driver version to 38.100.00.00.

Link: https://lore.kernel.org/r/20210803065134.19090-1-sreekanth.reddy@broadcom.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-09 22:58:08 -04:00
Sreekanth Reddy 432bc7caef scsi: mpt3sas: Add io_uring iopoll support
Enable the driver to work in non-IRQ mode, i.e. there will not be any MSI-X
vectors associated with queues dedicated to polling. The IOC hardware is
single submission queue and multiple reply queue. However, using the shared
host tagset support it is possible to simulate multiple hardware queues.

When poll_queues are enabled through the module parameter, the driver will
allocate extra reply queues without an MSI-X association. All I/O
completion on these queues will be done through the iopoll interface.

Link: https://lore.kernel.org/r/20210727081212.2742-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-09 22:55:50 -04:00
Sreekanth Reddy fae21608c3 scsi: mpt3sas: Transition IOC to Ready state during shutdown
The IOC firmware assumes that the host driver is still alive after shutdown
and continues to post events to host memory (due to faulty expander phy
links, etc). This leads to 0x2666 (a bus fault occurred during a host-IOC
memory access).

Perform an IOC soft reset as part of shutdown to disable event posting.

Link: https://lore.kernel.org/r/20210705145951.32258-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-19 21:57:15 -04:00
Zhen Lei d6c2ce435f scsi: mpt3sas: Fix error return value in _scsih_expander_add()
When an expander does not contain any 'phys', an appropriate error code -1
should be returned, as done elsewhere in this function. However, we
currently do not explicitly assign this error code to 'rc'. As a result, 0
was incorrectly returned.

Link: https://lore.kernel.org/r/20210514081300.6650-1-thunder.leizhen@huawei.com
Fixes: f92363d123 ("[SCSI] mpt3sas: add new driver supporting 12GB SAS")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:03 -04:00
Suganath Prabu S cf750be8e6 scsi: mpt3sas: Fix Coverity reported issue
Fix the structurally dead code (UNREACHABLE) type of error reported by
Coverity.

Link: https://lore.kernel.org/r/20210618155506.2609112-1-suganath-prabu.subramani@broadcom.com
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18 23:01:03 -04:00