scsi: qedi: Protect active command list to avoid list corruption
Protect active command list for non-I/O commands like login response,
logout response, text response, and recovery cleanup of active list to
avoid list corruption.
scsi: qedi: Fix list_del corruption while removing active I/O
While aborting the I/O, the firmware cleanup task timed out and driver
deleted the I/O from active command list. Some time later the firmware
sent the cleanup task response and driver again deleted the I/O from
active command list causing firmware to send completion for non-existent
I/O and list_del corruption of active command list.
Add fix to check if I/O is present before deleting it from the active
command list to ensure firmware sends valid I/O completion and protect
against list_del corruption.
scsi: qedi: Skip firmware connection termination for PCI shutdown handler
In boot from SAN scenario when qedi PCI shutdown handler is called with
active iSCSI sessions, sometimes target takes too long time to respond to
firmware connection termination request. Instead skip sending termination
ramrod and progress with unload path.
scsi: qedi: Use qed count from set_fp_int in msix allocation
To avoid unnecessary vector allocation when the number of fast-path queues
is less then available msix vectors, use return count from module
qed->set_fp_int.
Nícolas F. R. A. Prado [Sat, 5 Sep 2020 21:03:00 +0000 (21:03 +0000)]
scsi: docs: Remove obsolete scsi typedef text from scsi_mid_low_api
Commit 91ebc1facd77 ("scsi: core: remove Scsi_Cmnd typedef") removed the
Scsi_cmnd typedef but it was still mentioned in a paragraph in the "SCSI
mid_level - lower_level driver interface" documentation page. Remove this
obsolete paragraph.
Link: https://lore.kernel.org/r/20200905210211.2286172-1-nfraprado@protonmail.com Suggested-by: Randy Dunlap <rdunlap@infradead.org> Suggested-by: Jonathan Corbet <corbet@lwn.net> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi: ibmvfc: Interface updates for future FPIN and MQ support
VIOS partitions with SLI-4 enabled Emulex adapters will be capable of
driving I/O in parallel through mulitple work queues or channels, and with
new hypervisor firmware that supports multiple interrupt sources an ibmvfc
NPIV single initiator can be modified to exploit end-to-end channelization
in a PowerVM environment.
VIOS hosts will also be able to expose fabric perfromance impact
notifications (FPIN) via a new asynchronous event to ibmvfc clients that
advertise support via IBMVFC_CAN_HANDLE_FPIN in their capabilities flag
during NPIV_LOGIN.
This patch introduces three new Management Datagrams (MADs) for
channelization support negotiation as well as the FPIN asynchronous
event and FPIN status flags. Follow up work is required to plumb the
ibmvfc client driver to use these new interfaces.
scsi: ibmvfc: Use compiler attribute defines instead of __attribute__()
Update ibmvfc.h structs to use the preferred __packed and __aligned()
attribute macros defined in include/linux/compiler_attributes.h in place of
__attribute__().
Bao D. Nguyen [Sat, 29 Aug 2020 01:05:13 +0000 (18:05 -0700)]
scsi: ufshcd: Allow specifying an Auto-Hibernate Timer value of zero
Setting the Auto-Hibernate Timer to zero is a valid setting which indicates
the Auto-Hibernate feature being disabled. Correctly support this setting.
In addition, when the timer value is queried from sysfs, read from the host
controller's register and return that value instead of using the RAM value.
John Pittman [Wed, 2 Sep 2020 21:14:34 +0000 (17:14 -0400)]
scsi: scsi_debug: Make sdebug_build_parts() respect virtual_gb
If virtual_gb is passed while using num_parts, when creating the
partitions, virtual_gb is not respected. Set num_sectors using
get_sdebug_capacity() to pull virtual_gb if set.
John Pittman [Wed, 2 Sep 2020 21:14:33 +0000 (17:14 -0400)]
scsi: scsi_debug: Adjust num_parts to create equally sized partitions
Currently when using the num_parts parameter, partitions are aligned and
the end sector is one prior to the next start. This creates different
sized partitions. Create instead equally sized partitions by trimming the
end of each partition to the size of the smallest partition. This aligns
better with what one would expect from automatically created partitions and
can be helpful with testing things such as raid which often expect legs of
the same size. Minimal space is lost as the initial partition starting
size is calculated by dividing num_sectors by sdebug_num_parts.
Luo Jiaxing [Tue, 1 Sep 2020 11:13:07 +0000 (19:13 +0800)]
scsi: hisi_sas: Add BIST support for phy FFE
Add BIST support for phy FFE (Feed forward equalizer) setting. The user can
configure FFE through the new debugfs interface.
FFE is a parameter used for link layer control. It will affect the link
quality between the SAS controller and the backplane. In the BIST test, the
FFE interface is provided to assist board testers in optimizing link
parameters.
The modification of the FFE parameter will affect the test after BIST or
the normal running of the board. The user should save the initial FFE
values and restore them after BIST test is complete.
Luo Jiaxing [Tue, 1 Sep 2020 11:13:05 +0000 (19:13 +0800)]
scsi: hisi_sas: Do not modify upper fields of PROG_PHY_LINK_RATE reg
When updating PROG_PHY_LINK_RATE to set linkrate for a phy we used a
hard-coded initial value instead of getting the current value from the
register. The assumption was that this register would not be modified, but
in fact it was partially modified in a new version of hardware. The
hard-coded value we used changed the default value of the register to a an
incorrect setting and as a result the SAS controller could not change
linkrate for the phy.
Delete hard-coded value and always read the latest value of register before
updating it.
scsi: hisi_sas: Avoid accessing to SSP task for SMP I/Os
hisi_sas_slot_task_free() attempts to dereference SSP task for non-ATA
tasks. If the task is SMP, the code may reference the wrong structure
although this may not cause any problems.
To avoid this, only access to SSP task when slot->n_elem_dif is not 0 which
indicates this is an SSP task.
Jason Yan [Mon, 31 Aug 2020 08:11:26 +0000 (16:11 +0800)]
scsi: fnic: Remove set but not used 'eth_hdrs_stripped'
This addresses the following gcc warning with "make W=1":
drivers/scsi/fnic/fnic_fcs.c: In function ‘fnic_rq_cmpl_frame_recv’:
drivers/scsi/fnic/fnic_fcs.c:840:15: warning: variable
‘eth_hdrs_stripped’ set but not used [-Wunused-but-set-variable]
840 | unsigned int eth_hdrs_stripped;
| ^~~~~~~~~~~~~~~~~
Jason Yan [Mon, 31 Aug 2020 08:11:25 +0000 (16:11 +0800)]
scsi: fnic: Remove set but not used 'fr_len'
This addresses the following gcc warning with "make W=1":
drivers/scsi/fnic/fnic_fcs.c: In function ‘fnic_fcoe_send_vlan_req’:
drivers/scsi/fnic/fnic_fcs.c:379:6: warning: variable ‘fr_len’ set but
not used [-Wunused-but-set-variable]
379 | int fr_len;
| ^~~~~~
Jason Yan [Mon, 31 Aug 2020 08:11:24 +0000 (16:11 +0800)]
scsi: fnic: Remove set but not used variable in is_fnic_fip_flogi_reject()
This addresses the following gcc warning with "make W=1":
drivers/scsi/fnic/fnic_fcs.c: In function ‘is_fnic_fip_flogi_reject’:
drivers/scsi/fnic/fnic_fcs.c:317:9: warning: variable ‘els_len’ set but
not used [-Wunused-but-set-variable]
317 | size_t els_len = 0;
| ^~~~~~~
drivers/scsi/fnic/fnic_fcs.c:312:21: warning: variable ‘els_dtype’ set
but not used [-Wunused-but-set-variable]
312 | enum fip_desc_type els_dtype = 0;
| ^~~~~~~~~
Jason Yan [Mon, 31 Aug 2020 08:11:23 +0000 (16:11 +0800)]
scsi: fnic: Remove set but not used 'old_vlan'
This addresses the following gcc warning with "make W=1":
drivers/scsi/fnic/fnic_main.c: In function ‘fnic_set_vlan’:
drivers/scsi/fnic/fnic_main.c:555:6: warning: variable ‘old_vlan’ set
but not used [-Wunused-but-set-variable]
555 | u16 old_vlan;
| ^~~~~~~~
Sergey Shtylyov [Sat, 29 Aug 2020 20:19:42 +0000 (23:19 +0300)]
scsi: fdomain_isa: Merge branches in fdomain_isa_match()
The *else* branch of the *if* (base) statement in fdomain_isa_match() is
immediately followed by the *if* (!base) statement. Simplify the code by
removing the unneeded *if*.
Can Guo [Tue, 25 Aug 2020 02:07:06 +0000 (19:07 -0700)]
scsi: ufs: Handle LINERESET indication in err handler
PA Layer issues a LINERESET to the PHY at the recovery step in the Power
Mode change operation. If it happens during auto or manual hibern8 enter,
even if hibern8 enter succeeds, UFS power mode shall be set to PWM-G1 mode
and kept in that mode after exit from hibern8, leading to bad performance.
Handle the LINERESET in the eh_work by restoring power mode to HS mode
after all pending reqs and tasks are cleared from doorbell.
Can Guo [Tue, 25 Aug 2020 02:07:05 +0000 (19:07 -0700)]
scsi: ufs: Abort tasks before clearing them from doorbell
To recover non-fatal errors, no full reset is required, err_handler only
clears those pending TRs/TMRs so that SCSI layer can re-issue them. In
current err_handler, TRs are directly cleared from UFS host's doorbell but
not aborted from device side. However, according to the UFSHCI JEDEC spec,
the host software shall use UTP Transfer Request List Clear Register to
clear a task from UFS host's doorbell only when a UTP Transfer Request is
expected to not be completed, e.g. when the host software receives a
“FUNCTION COMPLETE” Task Management response which means a Transfer Request
was aborted. To follow the UFSHCI JEDEC spec, in err_handler, abort one TR
before clearing it from doorbell.
Jason Yan [Thu, 27 Aug 2020 12:59:25 +0000 (20:59 +0800)]
scsi: mptscsih: Remove set but not used 'timeleft'
This addresses the following gcc warning with "make W=1":
drivers/message/fusion/mptscsih.c: In function ‘mptscsih_IssueTaskMgmt’:
drivers/message/fusion/mptscsih.c:1519:17: warning: variable ‘timeleft’
set but not used [-Wunused-but-set-variable]
1519 | unsigned long timeleft;
| ^~~~~~~~
Jason Yan [Thu, 27 Aug 2020 12:58:51 +0000 (20:58 +0800)]
scsi: isci: Remove set but not used 'index'
This addresses the following gcc warning with "make W=1":
drivers/scsi/isci/host.c: In function ‘sci_controller_complete_io’:
drivers/scsi/isci/host.c:2674:6: warning: variable ‘index’ set but not
used [-Wunused-but-set-variable]
2674 | u16 index;
| ^~~~~
Jason Yan [Thu, 27 Aug 2020 12:58:12 +0000 (20:58 +0800)]
scsi: dpt_i2o: Remove set but not used 'pHba'
This addresses the following gcc warning with "make W=1":
drivers/scsi/dpt_i2o.c: In function ‘adpt_slave_configure’:
drivers/scsi/dpt_i2o.c:411:12: warning: variable ‘pHba’ set but not used
[-Wunused-but-set-variable]
411 | adpt_hba* pHba;
| ^~~~
Eric Biggers [Wed, 26 Aug 2020 02:10:40 +0000 (19:10 -0700)]
scsi: ufs: Make ufshcd_print_trs() consider UFSHCD_QUIRK_PRDT_BYTE_GRAN
Fix ufshcd_print_trs() to consider UFSHCD_QUIRK_PRDT_BYTE_GRAN when using
utp_transfer_req_desc::prd_table_length, so that it doesn't treat the
number of bytes as the number of entries.
Originally from Kiwoong Kim
(https://lkml.kernel.org/r/20200218233115.8185-1-kwmad.kim@samsung.com).
Link: https://lore.kernel.org/r/20200826021040.152148-1-ebiggers@kernel.org Fixes: 26f968d7de82 ("scsi: ufs: Introduce UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk") Cc: Alim Akhtar <alim.akhtar@samsung.com> Cc: Kiwoong Kim <kwmad.kim@samsung.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Douglas Gilbert [Fri, 21 Aug 2020 04:22:49 +0000 (00:22 -0400)]
scsi: scsi_debug: Implement lun_format
Implement 'flat space LUN addressing', which allows us to raise the max_lun
limitation to 16384. The maximum number of LUNs prior to this patch was
256.
Kiwoong Kim [Tue, 25 Aug 2020 01:43:15 +0000 (10:43 +0900)]
scsi: ufs: Introduce skipping manual flush for Write Booster
We have two knobs to control flush for write booster,
fWriteBoosterBufferFlushDuringHibernate and fWriteBoosterBufferFlushEn.
Some vendors use only fWriteBoosterBufferFlushDuringHibernate because this
can reportedly cover most scenarios. Also, there have been some reports
that flush by fWriteBoosterBufferFlushEn could lead to increased power
consumption thanks to unexpected internal operations. Consequently, we need
a way to enable or disable fWriteBoosterEn operations. Add quirk to bypass
manual flush.
The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.
The patch has been generated with the coccinelle script below. And has
been hand modified to replace each GFP_ with a correct flag depending upon
the context. Compile tested.
The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.
The patch has been generated with the coccinelle script below. Compile
tested.
The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.
The patch has been generated with the coccinelle script below. Compile
tested.
The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.
The patch has been generated with the coccinelle script below. Compile
tested.
The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.
The patch has been generated with the coccinelle script below.
Compile tested.
The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.
The patch has been generated with the coccinelle script below. And has
been hand modified to replace each GFP_ with the correct flag depending
upon the context. Compile-tested.
The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.
The patch has been generated with the coccinelle script below.
Compile-tested.
Denis Efremov [Sat, 1 Aug 2020 13:31:23 +0000 (16:31 +0300)]
scsi: libcxgbi: Use kvzalloc instead of opencoded kzalloc/vzalloc
Remove cxgbi_alloc_big_mem(), cxgbi_free_big_mem() functions and use
kvzalloc/kvfree instead. __GFP_NOWARN added to kvzalloc() call because we
already print a warning in case of allocation fail.
Li Heng [Thu, 30 Jul 2020 03:31:56 +0000 (11:31 +0800)]
scsi: pmcraid: Remove superfluous memset()
Fixes coccicheck warning:
./drivers/scsi/pmcraid.c:4709:3-21: WARNING: dma_alloc_coherent use in pinstance -> hrrq_start [ i ] already zeroes out memory, so memset is not needed
dma_alloc_coherent() already zeroes out memory so memset() is not needed.
Li Heng [Thu, 30 Jul 2020 03:03:55 +0000 (11:03 +0800)]
scsi: mvsas: Remove superfluous memset()
Fixes coccicheck warning:
./drivers/scsi/mvsas/mv_init.c:244:11-29: WARNING: dma_alloc_coherent use in mvi -> tx already zeroes out memory, so memset is not needed
./drivers/scsi/mvsas/mv_init.c:250:15-33: WARNING: dma_alloc_coherent use in mvi -> rx_fis already zeroes out memory, so memset is not needed
./drivers/scsi/mvsas/mv_init.c:256:11-29: WARNING: dma_alloc_coherent use in mvi -> rx already zeroes out memory, so memset is not needed
./drivers/scsi/mvsas/mv_init.c:265:13-31: WARNING: dma_alloc_coherent use in mvi -> slot already zeroes out memory, so memset is not needed
dma_alloc_coherent() already zeroes out memory so memset() is not needed.
Li Heng [Wed, 29 Jul 2020 09:19:50 +0000 (17:19 +0800)]
scsi: mptctl: Remove unneeded cast from memory allocation
Remove casting the values returned by memory allocation function.
Coccinelle emits WARNING:
./drivers/message/fusion/mptctl.c:2596:14-31: WARNING: casting value returned by memory allocation function to (SCSIDevicePage0_t *) is useless.
./drivers/message/fusion/mptctl.c:2660:15-32: WARNING: casting value returned by memory allocation function to (SCSIDevicePage3_t *) is useless.
Li Heng [Wed, 29 Jul 2020 09:19:14 +0000 (17:19 +0800)]
scsi: mptfc: Remove unneeded cast from memory allocation
Remove casting the values returned by memory allocation function.
Coccinelle emits WARNING:
./drivers/message/fusion/mptfc.c:766:17-30: WARNING: casting value returned by memory allocation function to (FCPortPage0_t *) is useless.
./drivers/message/fusion/mptfc.c:907:17-30: WARNING: casting value returned by memory allocation function to (FCPortPage1_t *) is useless.
Andy Teng [Wed, 19 Aug 2020 08:43:40 +0000 (16:43 +0800)]
scsi: ufs: ufs-mediatek: Modify the minimum RX/TX lane count to 2
MediaTek UFS host now supports 2 lanes. Modify the lane count to 2.
This modification shall not impact old 1-lane host because
PA_CONNECTEDRXDATALANES and PA_CONNECTEDTXDATALANES will limit the target
lanes properly during power mode change. So we could relax the limitation
in ufs_dev_params.
Link: https://lore.kernel.org/r/20200819084340.7021-1-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Andy Teng <andy.teng@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Can Guo [Wed, 19 Aug 2020 01:02:29 +0000 (18:02 -0700)]
scsi: ufs: Remove an unpaired ufshcd_scsi_unblock_requests() in err_handler()
Commit 5586dd8ea250 ("scsi: ufs: Fix a race condition between error handler
and runtime PM ops") moves the ufshcd_scsi_block_requests() inside
err_handler() but forgets to remove the ufshcd_scsi_unblock_requests() in
the early return path. Correct the mistake.
Link: https://lore.kernel.org/r/1597798958-24322-1-git-send-email-cang@codeaurora.org Fixes: 5586dd8ea250 ("scsi: ufs: Fix a race condition between error handler and runtime PM ops") Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Hongwu Su<hongwus@codeaurora.org> Signed-off-by: Can Guo <cang@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bean Huo [Fri, 14 Aug 2020 09:50:34 +0000 (11:50 +0200)]
scsi: ufs: Remove several redundant goto statements
Link: https://lore.kernel.org/r/20200814095034.20709-3-huobean@gmail.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bean Huo [Fri, 14 Aug 2020 09:50:33 +0000 (11:50 +0200)]
scsi: ufs: Change ufshcd_comp_devman_upiu() to ufshcd_compose_devman_upiu()
ufshcd_comp_devman_upiu() was poorly named leading people to think it was a
completion function. Rename it to ufshcd_compose_devman_upiu().
Link: https://lore.kernel.org/r/20200814095034.20709-2-huobean@gmail.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Acked-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Saurav Kashyap [Fri, 7 Aug 2020 11:06:50 +0000 (04:06 -0700)]
scsi: qedf: Check for port type and role before processing an event
The rport lock gets initialized during offload. If a non-FCP or non-target
rport got logout then this rport will be uninitialized. KASAN was
complaining because of it.
=========
[ 14.384434] the code is fine but needs lockdep annotation.
[ 14.384482] turning off the locking correctness validator.
========
Sai Prakash Ranjan [Tue, 4 Aug 2020 16:10:33 +0000 (21:40 +0530)]
scsi: ufs-qcom: Remove unused MSM bus scaling APIs
MSM bus scaling has moved on to use interconnect framework and downstream
bus scaling APIs like msm_bus_scale*() do not exist anymore in the
kernel. Currently they are guarded by a config which also does not exist
and hence there are no build failures reported. Remove these unused
interfaces as they are currently no-ops and the scaling support that may be
added in future will use interconnect API.
Don Brace [Fri, 31 Jul 2020 21:01:50 +0000 (16:01 -0500)]
scsi: smartpqi: Bump version to 1.2.16-010
Link: https://lore.kernel.org/r/159622931040.30579.9167901134341507088.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Gerry Morong <gerry.morong@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Kevin Barnett [Fri, 31 Jul 2020 21:01:44 +0000 (16:01 -0500)]
scsi: smartpqi: Add RAID bypass counter
Add a counter to assist in verifying when RAID bypass is being used.
Link: https://lore.kernel.org/r/159622930468.30579.13153724465552773544.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Kevin Barnett [Fri, 31 Jul 2020 21:01:38 +0000 (16:01 -0500)]
scsi: smartpqi: Support device deletion via sysfs
Support device deletion via sysfs.
I.e: echo 1 > /sys/block/sd<X>/device/delete
Link: https://lore.kernel.org/r/159622929885.30579.2727491506675011534.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Kevin Barnett [Fri, 31 Jul 2020 21:01:33 +0000 (16:01 -0500)]
scsi: smartpqi: Avoid crashing kernel for controller issues
Eliminate kernel panics when getting invalid responses from controller.
Take controller offline instead of causing kernel panics.
Link: https://lore.kernel.org/r/159622929306.30579.16523318707596752828.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Prasad Munirathnam <Prasad.Munirathnam@microsemi.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi: smartpqi: Update logical volume size after expansion
Have OS rescan after logical volume expansion to reflect new size.
Link: https://lore.kernel.org/r/159622928727.30579.298277463169866711.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi: smartpqi: Add id support for SmartRAID 3152-8i
VID_9005, DID_028F, SVID_9005 and SDID_080A.
Link: https://lore.kernel.org/r/159622928143.30579.14769183842894725454.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Kevin Barnett [Fri, 31 Jul 2020 21:01:11 +0000 (16:01 -0500)]
scsi: smartpqi: Identify physical devices without issuing INQUIRY
Eliminate issuing INQUIRYs to problematic devices by using information
provided by controller.
Link: https://lore.kernel.org/r/159622927172.30579.3960527536810532094.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Suganath Prabu S [Thu, 30 Jul 2020 08:03:48 +0000 (13:33 +0530)]
scsi: mpt3sas: Postprocessing of target and LUN reset
If driver has not received the interrupt for the aborted SCSI command
before processing the TM reply, driver polls all the reply descriptor pools
looking for the reply for the aborted SCSI command before marking TM as
FAILED. If it finds the reply, then it marks the TM as SUCCESS otherwise it
marks it FAILED.
scsih_tm_cmd_map_status() checks whether TM has aborted the timed out SCSI
command or not. If TM has aborted the IO, then it returns SUCCESS else it
returns FAILED.
Suganath Prabu S [Thu, 30 Jul 2020 08:03:46 +0000 (13:33 +0530)]
scsi: mpt3sas: Rename and export interrupt mask/unmask functions
Rename Function _base_unmask_interrupts() to
mpt3sas_base_unmask_interrupts() and _base_mask_interrupts() to
mpt3sas_base_mask_interrupts(). Also add function declarion to
mpt3sas_base.h
Suganath Prabu S [Thu, 30 Jul 2020 08:03:45 +0000 (13:33 +0530)]
scsi: mpt3sas: Cancel the running work during host reset
It is not recommended to issue back-to-back host reset without any delay.
However, if someone issues back-to-back host reset then we observe that
target devices get unregistered and re-register with SML. And if OS drive
is behind the HBA when it gets unregistered, then file-system goes into
read-only mode.
Normally during host reset, driver marks accessible target devices as
responding and triggers the event MPT3SAS_REMOVE_UNRESPONDING_DEVICES to
remove any non-responding devices through FW worker thread. While
processing this event, driver unregisters the non-responding devices and
clears the responding flag for all the devices.
Currently, during host reset, driver is cancelling only those Firmware
event works which are pending in Firmware event workqueue. It is not
cancelling work which is currently running. Change the driver to cancel all
events.
Suganath Prabu S [Thu, 30 Jul 2020 08:03:44 +0000 (13:33 +0530)]
scsi: mpt3sas: Dump system registers for debugging
When controller fails to transition to READY state during driver probe,
dump the system interface register set. This will give snapshot of the
firmware status for debugging driver load issues.
Suganath Prabu S [Thu, 30 Jul 2020 08:03:43 +0000 (13:33 +0530)]
scsi: mpt3sas: Memset config_cmds.reply buffer with zeros
Currently config_cmds.reply buffer is not memset to zero before posting
config page request message. In some cases, for the current config
request, the previous config reply is getting processed and we will observe
PageType mismatch between request to reply buffer. It will be difficult to
debug this type of issue and it confuses by thinking that HBA Firmware
itself posted the wrong config reply. So it is better to memset the
config_cmds.reply buffer with zeros before issuing the config request.
Can Guo [Sun, 9 Aug 2020 12:15:55 +0000 (05:15 -0700)]
scsi: ufs: Properly release resources if a task is aborted successfully
In current UFS task abort hook, namely ufshcd_abort(), if one task is
aborted successfully, clk_gating.active_reqs held by this task is not
decreased, which makes clk_gating.active_reqs stay above zero forever, thus
clock gating would never happen. Instead of releasing resources of one task
"manually", use the existing func __ufshcd_transfer_req_compl(). This
change also eliminates a possible race of scsi_dma_unmap() from the real
completion in IRQ handler path.
Link: https://lore.kernel.org/r/1596975355-39813-10-git-send-email-cang@codeaurora.org Fixes: 1ab27c9cf8b6 ("ufs: Add support for clock gating") CC: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Can Guo <cang@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Can Guo [Sun, 9 Aug 2020 12:15:54 +0000 (05:15 -0700)]
scsi: ufs: Fix a race condition between error handler and runtime PM ops
The current IRQ handler blocks SCSI requests before scheduling eh_work,
when error handler calls pm_runtime_get_sync, if ufshcd_suspend/resume
sends a SCSI cmd, most likely the SSU cmd, since SCSI requests are blocked,
pm_runtime_get_sync() will never return because ufshcd_suspend/resume is
blocked by the SCSI cmd.
- In queuecommand path, hba->ufshcd_state check and ufshcd_send_command
should stay under the same spin lock. This is to make sure that no more
commands leak into doorbell after hba->ufshcd_state is changed.
- Don't block SCSI requests before error handler starts to run, let error
handler block SCSI requests when it is ready to start error recovery.
- Don't let SCSI layer keep requeuing the SCSI cmds sent from HBA runtime
PM ops, let them pass or fail them. Let them pass if eh_work is
scheduled due to non-fatal errors. Fail them if eh_work is scheduled due
to fatal errors, otherwise the cmds may eventually time out since UFS is
in bad state, which gets error handler blocked for too long. If we fail
the SCSI cmds sent from HBA runtime PM ops, HBA runtime PM ops fails
too, but it does not hurt since error handler can recover HBA runtime PM
error.
Can Guo [Sun, 9 Aug 2020 12:15:52 +0000 (05:15 -0700)]
scsi: ufs: Recover HBA runtime PM error in error handler
The current error handler can not recover HBA runtime PM error if
ufshcd_suspend/resume has failed due to UFS errors, e.g. hibern8 enter/exit
error or SSU cmd error. When this happens, error handler may fail
performing a full reset and restore because error handler always assumes
that power, IRQs and clocks are ready after pm_runtime_get_sync returns,
but actually they are not if ufshcd_resume fails[1].
If ufschd_suspend/resume fails due to UFS errors, runtime PM framework
saves the error value to dev.power.runtime_error. After that, HBA dev
runtime suspend/resume would not be invoked anymore unless runtime_error is
cleared[2].
In case of ufshcd_suspend/resume fails due to UFS errors, for scenario [1],
error handler cannot assume anything of pm_runtime_get_sync, meaning error
handler should explicitly turn ON powers, IRQs and clocks again. To get the
HBA runtime PM work as regard for scenario [2], error handler can clear the
runtime_error by calling pm_runtime_set_active() if full reset and restore
succeeds. And, more important, if pm_runtime_set_active() returns no error,
which means runtime_error has been cleared, we also need to resume those
scsi devices under HBA in case any of them has failed to be resumed due to
HBA runtime resume failure. This is to unblock blk_queue_enter in case
there are bios waiting inside it.
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