linux-stable.git/drivers/ufs, branch v6.3.4 Linux kernel stable tree scsi: ufs: ufs-pci: Add support for Intel Lunar Lake 2023-05-24T16:30:05+00:00 Adrian Hunter adrian.hunter@intel.com 2023-03-28T10:58:32+00:00 269d858757778fab335a7ed027f858f9f2f340a9 [ Upstream commit 0a07d3c7a1d205b47d9f3608ff4e9d1065d63b6d ] Add PCI ID to support Intel Lunar Lake, same as MTL. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20230328105832.3495-1-adrian.hunter@intel.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 0a07d3c7a1d205b47d9f3608ff4e9d1065d63b6d ]

Add PCI ID to support Intel Lunar Lake, same as MTL.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230328105832.3495-1-adrian.hunter@intel.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
scsi: ufs: core: Fix I/O hang that occurs when BKOPS fails in W-LUN suspend 2023-05-24T16:29:58+00:00 Keoseong Park keosung.park@samsung.com 2023-04-25T03:17:21+00:00 5afaca177c115a5f62d0b99e293cd88b206b704c [ Upstream commit 1a7edd041f2d252f251523ba3f2eaead076a8f8d ] Even when urgent BKOPS fails, the consumer will get stuck in runtime suspend status. Like commit 1a5665fc8d7a ("scsi: ufs: core: WLUN suspend SSU/enter hibern8 fail recovery"), trigger the error handler and return -EBUSY to break the suspend. Fixes: b294ff3e3449 ("scsi: ufs: core: Enable power management for wlun") Signed-off-by: Keoseong Park <keosung.park@samsung.com> Link: https://lore.kernel.org/r/20230425031721epcms2p5d4de65616478c967d466626e20c42a3a@epcms2p5 Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 1a7edd041f2d252f251523ba3f2eaead076a8f8d ]

Even when urgent BKOPS fails, the consumer will get stuck in runtime
suspend status. Like commit 1a5665fc8d7a ("scsi: ufs: core: WLUN suspend
SSU/enter hibern8 fail recovery"), trigger the error handler and return
-EBUSY to break the suspend.

Fixes: b294ff3e3449 ("scsi: ufs: core: Enable power management for wlun")
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Link: https://lore.kernel.org/r/20230425031721epcms2p5d4de65616478c967d466626e20c42a3a@epcms2p5
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
scsi: ufs: core: mcq: Fix &hwq->cq_lock deadlock issue 2023-05-17T12:01:36+00:00 Alice Chao alice.chao@mediatek.com 2023-04-24T08:03:56+00:00 2ce8c49c7b53e0a2258b833eeab16a6d78f732d1 [ Upstream commit 948afc69615167a3c82430f99bfd046332b89912 ] When ufshcd_err_handler() is executed, CQ event interrupt can enter waiting for the same lock. This can happen in ufshcd_handle_mcq_cq_events() and also in ufs_mtk_mcq_intr(). The following warning message will be generated when &hwq->cq_lock is used in IRQ context with IRQ enabled. Use ufshcd_mcq_poll_cqe_lock() with spin_lock_irqsave instead of spin_lock to resolve the deadlock issue. [name:lockdep&]WARNING: inconsistent lock state [name:lockdep&]-------------------------------- [name:lockdep&]inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage. [name:lockdep&]kworker/u16:4/260 [HC0[0]:SC0[0]:HE1:SE1] takes: ffffff8028444600 (&hwq->cq_lock){?.-.}-{2:2}, at: ufshcd_mcq_poll_cqe_lock+0x30/0xe0 [name:lockdep&]{IN-HARDIRQ-W} state was registered at: lock_acquire+0x17c/0x33c _raw_spin_lock+0x5c/0x7c ufshcd_mcq_poll_cqe_lock+0x30/0xe0 ufs_mtk_mcq_intr+0x60/0x1bc [ufs_mediatek_mod] __handle_irq_event_percpu+0x140/0x3ec handle_irq_event+0x50/0xd8 handle_fasteoi_irq+0x148/0x2b0 generic_handle_domain_irq+0x4c/0x6c gic_handle_irq+0x58/0x134 call_on_irq_stack+0x40/0x74 do_interrupt_handler+0x84/0xe4 el1_interrupt+0x3c/0x78 <snip> Possible unsafe locking scenario: CPU0 ---- lock(&hwq->cq_lock); <Interrupt> lock(&hwq->cq_lock); *** DEADLOCK *** 2 locks held by kworker/u16:4/260: [name:lockdep&] stack backtrace: CPU: 7 PID: 260 Comm: kworker/u16:4 Tainted: G S W OE 6.1.17-mainline-android14-2-g277223301adb #1 Workqueue: ufs_eh_wq_0 ufshcd_err_handler Call trace: dump_backtrace+0x10c/0x160 show_stack+0x20/0x30 dump_stack_lvl+0x98/0xd8 dump_stack+0x20/0x60 print_usage_bug+0x584/0x76c mark_lock_irq+0x488/0x510 mark_lock+0x1ec/0x25c __lock_acquire+0x4d8/0xffc lock_acquire+0x17c/0x33c _raw_spin_lock+0x5c/0x7c ufshcd_mcq_poll_cqe_lock+0x30/0xe0 ufshcd_poll+0x68/0x1b0 ufshcd_transfer_req_compl+0x9c/0xc8 ufshcd_err_handler+0x3bc/0xea0 process_one_work+0x2f4/0x7e8 worker_thread+0x234/0x450 kthread+0x110/0x134 ret_from_fork+0x10/0x20 Fixes: ed975065c31c ("scsi: ufs: core: mcq: Add completion support in poll") Reviewed-by: Can Guo <quic_cang@quicinc.com> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Alice Chao <alice.chao@mediatek.com> Link: https://lore.kernel.org/r/20230424080400.8955-1-alice.chao@mediatek.com Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 948afc69615167a3c82430f99bfd046332b89912 ]

When ufshcd_err_handler() is executed, CQ event interrupt can enter waiting
for the same lock. This can happen in ufshcd_handle_mcq_cq_events() and
also in ufs_mtk_mcq_intr(). The following warning message will be generated
when &hwq->cq_lock is used in IRQ context with IRQ enabled. Use
ufshcd_mcq_poll_cqe_lock() with spin_lock_irqsave instead of spin_lock to
resolve the deadlock issue.

[name:lockdep&]WARNING: inconsistent lock state
[name:lockdep&]--------------------------------
[name:lockdep&]inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
[name:lockdep&]kworker/u16:4/260 [HC0[0]:SC0[0]:HE1:SE1] takes:
  ffffff8028444600 (&hwq->cq_lock){?.-.}-{2:2}, at:
ufshcd_mcq_poll_cqe_lock+0x30/0xe0
[name:lockdep&]{IN-HARDIRQ-W} state was registered at:
  lock_acquire+0x17c/0x33c
  _raw_spin_lock+0x5c/0x7c
  ufshcd_mcq_poll_cqe_lock+0x30/0xe0
  ufs_mtk_mcq_intr+0x60/0x1bc [ufs_mediatek_mod]
  __handle_irq_event_percpu+0x140/0x3ec
  handle_irq_event+0x50/0xd8
  handle_fasteoi_irq+0x148/0x2b0
  generic_handle_domain_irq+0x4c/0x6c
  gic_handle_irq+0x58/0x134
  call_on_irq_stack+0x40/0x74
  do_interrupt_handler+0x84/0xe4
  el1_interrupt+0x3c/0x78
<snip>

Possible unsafe locking scenario:
       CPU0
       ----
  lock(&hwq->cq_lock);
  <Interrupt>
    lock(&hwq->cq_lock);
  *** DEADLOCK ***
2 locks held by kworker/u16:4/260:

[name:lockdep&]
 stack backtrace:
CPU: 7 PID: 260 Comm: kworker/u16:4 Tainted: G S      W  OE
6.1.17-mainline-android14-2-g277223301adb #1
Workqueue: ufs_eh_wq_0 ufshcd_err_handler

 Call trace:
  dump_backtrace+0x10c/0x160
  show_stack+0x20/0x30
  dump_stack_lvl+0x98/0xd8
  dump_stack+0x20/0x60
  print_usage_bug+0x584/0x76c
  mark_lock_irq+0x488/0x510
  mark_lock+0x1ec/0x25c
  __lock_acquire+0x4d8/0xffc
  lock_acquire+0x17c/0x33c
  _raw_spin_lock+0x5c/0x7c
  ufshcd_mcq_poll_cqe_lock+0x30/0xe0
  ufshcd_poll+0x68/0x1b0
  ufshcd_transfer_req_compl+0x9c/0xc8
  ufshcd_err_handler+0x3bc/0xea0
  process_one_work+0x2f4/0x7e8
  worker_thread+0x234/0x450
  kthread+0x110/0x134
  ret_from_fork+0x10/0x20

Fixes: ed975065c31c ("scsi: ufs: core: mcq: Add completion support in poll")
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Alice Chao <alice.chao@mediatek.com>
Link: https://lore.kernel.org/r/20230424080400.8955-1-alice.chao@mediatek.com
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
scsi: Revert "scsi: ufs: core: Initialize devfreq synchronously" 2023-04-03T01:12:34+00:00 Adrien Thierry athierry@redhat.com 2023-03-29T20:54:25+00:00 86eb94bf8006a85738f0ccf49e3ce894e03922a6 This reverts commit 7dafc3e007918384c8693ff8d70381b5c1e9c247. This patch introduced a regression [1] where hba->pwr_info is used before being initialized, which could create issues in ufshcd_scale_gear(). Revert it until a better solution is found. [1] https://lore.kernel.org/all/CAGaU9a_PMZhqv+YJ0r3w-hJMsR922oxW6Kg59vw+oen-NZ6Otw@mail.gmail.com Signed-off-by: Adrien Thierry <athierry@redhat.com> Link: https://lore.kernel.org/r/20230329205426.46393-1-athierry@redhat.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 
This reverts commit 7dafc3e007918384c8693ff8d70381b5c1e9c247.

This patch introduced a regression [1] where hba->pwr_info is used before
being initialized, which could create issues in ufshcd_scale_gear(). Revert
it until a better solution is found.

[1] https://lore.kernel.org/all/CAGaU9a_PMZhqv+YJ0r3w-hJMsR922oxW6Kg59vw+oen-NZ6Otw@mail.gmail.com

Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20230329205426.46393-1-athierry@redhat.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi: ufs: mcq: Use active_reqs to check busy in clock scaling 2023-03-10T02:09:28+00:00 Asutosh Das quic_asutoshd@quicinc.com 2023-03-08T23:13:23+00:00 c6001025d53ab56d7159cf313313c6b5bd250380 Multi Circular Queue doesn't use outstanding_reqs. However, the UFS clock scaling functions use outstanding_reqs to determine if there are requests pending. When MCQ is enabled, this check always returns false. Hence use active_reqs to check if there are pending requests. Fixes: eacb139b77ff ("scsi: ufs: core: mcq: Enable multi-circular queue") Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://lore.kernel.org/r/a24e0d646aac70eae0fc5e05fac0c58bb7e6e680.1678317160.git.quic_asutoshd@quicinc.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 
Multi Circular Queue doesn't use outstanding_reqs. However, the UFS clock
scaling functions use outstanding_reqs to determine if there are requests
pending. When MCQ is enabled, this check always returns false.

Hence use active_reqs to check if there are pending requests.

Fixes: eacb139b77ff ("scsi: ufs: core: mcq: Enable multi-circular queue")
Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/a24e0d646aac70eae0fc5e05fac0c58bb7e6e680.1678317160.git.quic_asutoshd@quicinc.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi: ufs: mcq: qcom: Clean the return path of ufs_qcom_mcq_config_resource() 2023-03-06T23:33:12+00:00 Asutosh Das quic_asutoshd@quicinc.com 2023-03-02T01:42:56+00:00 c9507eab9fa7af7ab4c80856eeafd1481ff16f7c Smatch static checker reported: drivers/ufs/host/ufs-qcom.c:1469 ufs_qcom_mcq_config_resource() info: returning a literal zero is cleaner Fix the above warning by returning in place instead of a jump to a label. Also remove the usage of devm_kfree() as it's unnecessary in this function. Fixes: c263b4ef737e ("scsi: ufs: core: mcq: Configure resource regions") Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com> Link: https://lore.kernel.org/r/3ebd2582af74b81ef7b57149f57c6a3bf0963953.1677721229.git.quic_asutoshd@quicinc.com Reviewed-by: Bjorn Andersson <andersson@kernel.org> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 
Smatch static checker reported:
drivers/ufs/host/ufs-qcom.c:1469
ufs_qcom_mcq_config_resource() info: returning a literal zero is
cleaner

Fix the above warning by returning in place instead of a jump to a label.
Also remove the usage of devm_kfree() as it's unnecessary in this function.

Fixes: c263b4ef737e ("scsi: ufs: core: mcq: Configure resource regions")
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
Link: https://lore.kernel.org/r/3ebd2582af74b81ef7b57149f57c6a3bf0963953.1677721229.git.quic_asutoshd@quicinc.com
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi: ufs: mcq: qcom: Fix passing zero to PTR_ERR 2023-03-06T23:33:12+00:00 Asutosh Das quic_asutoshd@quicinc.com 2023-03-02T01:41:06+00:00 c8be073bd2bced20f58e65276281fc116758c7cb Fix an error case in ufs_qcom_mcq_config_resource(), where the return value is set to 0 before passing it to PTR_ERR. This led to Smatch warning: drivers/ufs/host/ufs-qcom.c:1455 ufs_qcom_mcq_config_resource() warn: passing zero to 'PTR_ERR' Fixes: c263b4ef737e ("scsi: ufs: core: mcq: Configure resource regions") Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com> Link: https://lore.kernel.org/r/94ca99b327af634799ce5f25d0112c28cd00970d.1677721072.git.quic_asutoshd@quicinc.com Reviewed-by: Bjorn Andersson <andersson@kernel.org> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 
Fix an error case in ufs_qcom_mcq_config_resource(), where the return value
is set to 0 before passing it to PTR_ERR.

This led to Smatch warning:

drivers/ufs/host/ufs-qcom.c:1455 ufs_qcom_mcq_config_resource() warn:
passing zero to 'PTR_ERR'

Fixes: c263b4ef737e ("scsi: ufs: core: mcq: Configure resource regions")
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
Link: https://lore.kernel.org/r/94ca99b327af634799ce5f25d0112c28cd00970d.1677721072.git.quic_asutoshd@quicinc.com
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi: ufs: ufs-qcom: Remove impossible check 2023-03-06T23:33:12+00:00 Dan Carpenter error27@gmail.com 2023-02-27T10:07:26+00:00 fa8d32721a07d1349d963832400e97ebb515aa96 The "dev_req_params" pointer points to inside the middle of a struct so it can't be NULL. Removing this impossible condition is nice because now we don't need to consider the correct error code for that situation. Link: https://lore.kernel.org/r/Y/yA3niWUcGYgBU8@kili Fixes: f06fcc7155dc ("scsi: ufs-qcom: add QUniPro hardware support and power optimizations") Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 
The "dev_req_params" pointer points to inside the middle of a struct so it
can't be NULL.  Removing this impossible condition is nice because now we
don't need to consider the correct error code for that situation.

Link: https://lore.kernel.org/r/Y/yA3niWUcGYgBU8@kili
Fixes: f06fcc7155dc ("scsi: ufs-qcom: add QUniPro hardware support and power optimizations")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi: ufs: core: Add soft dependency on governor_simpleondemand 2023-03-06T23:33:12+00:00 Adrien Thierry athierry@redhat.com 2023-02-20T14:07:40+00:00 2ebe16155dc8bd4e602cad5b5f65458d2eaa1a75 The ufshcd driver uses simpleondemand governor for devfreq. Add it to the list of ufshcd softdeps to allow userspace initramfs tools like dracut to automatically pull the governor module into the initramfs together with UFS drivers. Link: https://lore.kernel.org/r/20230220140740.14379-1-athierry@redhat.com Signed-off-by: Adrien Thierry <athierry@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 
The ufshcd driver uses simpleondemand governor for devfreq. Add it to the
list of ufshcd softdeps to allow userspace initramfs tools like dracut to
automatically pull the governor module into the initramfs together with UFS
drivers.

Link: https://lore.kernel.org/r/20230220140740.14379-1-athierry@redhat.com
Signed-off-by: Adrien Thierry <athierry@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi 2023-03-03T22:41:50+00:00 Linus Torvalds torvalds@linux-foundation.org 2023-03-03T22:41:50+00:00 06caa751545512fae98c21f282006a7fff852daf Pull more SCSI updates from James Bottomley: "Updates that missed the first pull, mostly because of needing more soak time. Driver updates (zfcp, ufs, mpi3mr, plus two ipr bug fixes), an enclosure services (ses) update (mostly bug fixes) and other minor bug fixes and changes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (32 commits) scsi: zfcp: Trace when request remove fails after qdio send fails scsi: zfcp: Change the type of all fsf request id fields and variables to u64 scsi: zfcp: Make the type for accessing request hashtable buckets size_t scsi: ufs: core: Simplify ufshcd_execute_start_stop() scsi: ufs: core: Rely on the block layer for setting RQF_PM scsi: core: Extend struct scsi_exec_args scsi: lpfc: Fix double word in comments scsi: core: Remove the /proc/scsi/${proc_name} directory earlier scsi: core: Fix a source code comment scsi: cxgbi: Remove unneeded version.h include scsi: qedi: Remove unneeded version.h include scsi: mpi3mr: Remove unneeded version.h include scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization scsi: mpi3mr: Use number of bits to manage bitmap sizes scsi: mpi3mr: Remove unnecessary memcpy() to alltgt_info->dmi scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info() scsi: mpi3mr: Fix an issue found by KASAN scsi: mpi3mr: Replace 1-element array with flex-array scsi: ipr: Work around fortify-string warning scsi: ipr: Make ipr_probe_ioa_part2() return void ... 
Pull more SCSI updates from James Bottomley:
 "Updates that missed the first pull, mostly because of needing more
  soak time.

  Driver updates (zfcp, ufs, mpi3mr, plus two ipr bug fixes), an
  enclosure services (ses) update (mostly bug fixes) and other minor bug
  fixes and changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (32 commits)
  scsi: zfcp: Trace when request remove fails after qdio send fails
  scsi: zfcp: Change the type of all fsf request id fields and variables to u64
  scsi: zfcp: Make the type for accessing request hashtable buckets size_t
  scsi: ufs: core: Simplify ufshcd_execute_start_stop()
  scsi: ufs: core: Rely on the block layer for setting RQF_PM
  scsi: core: Extend struct scsi_exec_args
  scsi: lpfc: Fix double word in comments
  scsi: core: Remove the /proc/scsi/${proc_name} directory earlier
  scsi: core: Fix a source code comment
  scsi: cxgbi: Remove unneeded version.h include
  scsi: qedi: Remove unneeded version.h include
  scsi: mpi3mr: Remove unneeded version.h include
  scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization
  scsi: mpi3mr: Use number of bits to manage bitmap sizes
  scsi: mpi3mr: Remove unnecessary memcpy() to alltgt_info->dmi
  scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()
  scsi: mpi3mr: Fix an issue found by KASAN
  scsi: mpi3mr: Replace 1-element array with flex-array
  scsi: ipr: Work around fortify-string warning
  scsi: ipr: Make ipr_probe_ioa_part2() return void
  ...