When an FC-GS I/O is aborted by lpfc, the driver requires a node pointer
for a dereference operation. In the abort I/O routine, the driver miscasts
a context pointer to the wrong data type and overwrites a single byte
outside of the allocated space. This miscast is done in the abort I/O
function handler because the handler works on both FC-GS and FC-LS
commands. However, the code neglected to get the correct job location for
the node.
Fix this by acquiring the necessary node pointer from the correct job
structure depending on the I/O type.
Link: https://lore.kernel.org/r/20211004231210.35524-1-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
It's not holding the lock at this stage and the IRQ "flags" are not correct
so it would restore something bogus. Delete the unlock statement.
Link: https://lore.kernel.org/r/20211004103851.GE25015@kili
Fixes: 3e6414003b ("scsi: elx: efct: SCSI I/O handling routines")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
pm8001_mpi_get_nvmd_resp() handles a GET_NVMD_DATA response, not a
SET_NVMD_DATA response, as the log statement implies.
Fixes: 1f889b5871 ("scsi: pm80xx: Fix pm8001_mpi_get_nvmd_resp() race condition")
Link: https://lore.kernel.org/r/20210929025847.646999-1-ipylypiv@google.com
Reviewed-by: Changyuan Lyu <changyuanl@google.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is a follow up cleanup to the commit 924a3541ea ("scsi: libsas:
aic94xx: hisi_sas: mvsas: pm8001: Use dev_is_expander()")
Link: https://lore.kernel.org/r/20210929025807.646589-1-ipylypiv@google.com
Reviewed-by: Vishakha Channapattan <vishakhavc@google.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Make use of the struct_size() helper instead of an open-coded version, in
order to avoid any potential type mistakes or integer overflows that, in
the worst scenario, could lead to heap overflows.
Link: https://github.com/KSPP/linux/issues/160
Link: https://lore.kernel.org/r/20210927224344.GA190701@embeddedor
Reviewed-by: Bodo Stroesser <bostroesser@gmail.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Many fabric modules provide their own implementation of enable attribute in
tpg.
Provide a way to remove code duplication in the fabric modules and
automatically add "enable" attribute if a fabric module has an
implementation of fabric_enable_tpg().
Link: https://lore.kernel.org/r/20210910084133.17956-2-d.bogdanov@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
IRQ polling thread calls ISR after enable_irq() to handle any missed I/O
completion. The atomic flag "in_used" was added to have the synchronization
between the IRQ polling thread and the interrupt context. There is a bug
around it leading to a race condition.
Below is the sequence:
- IRQ polling thread accesses ISR, fetches the reply descriptor.
- Real interrupt arrives and pre-empts polling thread (enable_irq() is
already called).
- Interrupt context picks the same reply descriptor as fetched by polling
thread, processes it, and exits.
- Polling thread resumes and processes the descriptor which is already
processed by interrupt thread leads to kernel crash.
Setting the "in_used" flag before fetching the reply descriptor ensures
synchronized access to ISR.
Link: https://www.spinics.net/lists/linux-scsi/msg159440.html
Link: https://lore.kernel.org/r/20210929124022.24605-2-sumit.saxena@broadcom.com
Fixes: 9bedd36e91 ("scsi: megaraid_sas: Handle missing interrupts while re-enabling IRQs")
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pointers should be printed with %p or %px rather than cast to 'unsigned
long' and printed with %lx.
Change %lx to %p to print the hashed pointer.
Link: https://lore.kernel.org/r/20210929122538.1158235-1-qtxuning1999@sjtu.edu.cn
Signed-off-by: Guo Zhi <qtxuning1999@sjtu.edu.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change the log level of the following message to debug:
Unsupported SCSI Opcode 0xXX, sending CHECK_CONDITION.
This message is mostly helpful during debugging sessions in order to
understand errors on the initiator side. But most of the time it's just
useless and makes reading logs much harder.
It gets particularly annoying if there are many initiators that come and go
or if an initiator runs a program that does not care whether the command is
supported and just keeps sending it.
Link: https://lore.kernel.org/r/20210929114959.705852-1-k.shelekhin@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Konstantin Shelekhin <k.shelekhin@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Callers of ufshcd_err_handler() expect it to return in an operational
state. However, the code does not check the state before exiting.
Add a check for the state and perform retries until either success or the
maximum number of retries is reached.
Link: https://lore.kernel.org/r/20211002154550.128511-3-adrian.hunter@intel.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Callers of ufshcd_reset_and_restore() expect it to return in an operational
state. However, the code only checks direct errors and so the ufshcd_state
may not be UFSHCD_STATE_OPERATIONAL due to error interrupts.
Fix by also checking ufshcd_state, still allowing non-fatal errors which
are left for the error handler to deal with.
Link: https://lore.kernel.org/r/20211002154550.128511-2-adrian.hunter@intel.com
Reviewed-by: Avri altman <avri.altman@wdc.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit aa53f580e6 ("scsi: ufs: Minor adjustments to error handling")
introduced a ufshcd_clear_ua_wluns() call in
ufshcd_err_handling_unprepare(). As explained in detail by Adrian Hunter,
this can trigger a deadlock. Avoid that deadlock by removing the code that
clears the unit attention. This is safe because the only software that
relies on clearing unit attentions is the Android Trusty software and
because support for handling unit attentions has been added in the Trusty
software.
See also https://lore.kernel.org/linux-scsi/20210930124224.114031-2-adrian.hunter@intel.com/
Note that "scsi: ufs: Retry START_STOP on UNIT_ATTENTION" is a prerequisite
for this commit.
Link: https://lore.kernel.org/r/20211001182015.1347587-3-jaegeuk@kernel.org
Fixes: aa53f580e6 ("scsi: ufs: Minor adjustments to error handling")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 57d104c153 ("ufs: add UFS power management support") made the UFS
driver submit a REQUEST SENSE command before submitting a power management
command to a WLUN to clear the POWER ON unit attention. Instead of
submitting a REQUEST SENSE command before submitting a power management
command, retry the power management command until it succeeds.
This is the preparation to get rid of all UNIT ATTENTION code which should
be handled by users.
Link: https://lore.kernel.org/r/20211001182015.1347587-2-jaegeuk@kernel.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since commit 568dd99596 ("scsi: ufs: Rename the second ufshcd_probe_hba()
argument"), the second ufshcd_probe_hba() argument has been changed to
init_dev_params.
Link: https://lore.kernel.org/r/20210929200640.828611-3-huobean@gmail.com
Fixes: 568dd99596 ("scsi: ufs: Rename the second ufshcd_probe_hba() argument")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The UFS driver uses blk_mq_tagset_busy_iter() when identifying task
management requests to complete, however blk_mq_tagset_busy_iter() doesn't
work.
blk_mq_tagset_busy_iter() only iterates requests dispatched by the block
layer. That appears as if it might have started since commit 37f4a24c24
("blk-mq: centralise related handling into blk_mq_get_driver_tag") which
removed 'data->hctx->tags->rqs[rq->tag] = rq' from blk_mq_rq_ctx_init()
which gets called:
blk_get_request
blk_mq_alloc_request
__blk_mq_alloc_request
blk_mq_rq_ctx_init
Since UFS task management requests are not dispatched by the block layer,
hctx->tags->rqs[rq->tag] remains NULL, and since blk_mq_tagset_busy_iter()
relies on finding requests using hctx->tags->rqs[rq->tag], UFS task
management requests are never found by blk_mq_tagset_busy_iter().
By using blk_mq_tagset_busy_iter(), the UFS driver was relying on internal
details of the block layer, which was fragile and subsequently got
broken. Fix by removing the use of blk_mq_tagset_busy_iter() and having the
driver keep track of task management requests.
Link: https://lore.kernel.org/r/20210922091059.4040-1-adrian.hunter@intel.com
Fixes: 1235fc569e ("scsi: ufs: core: Fix task management request completion timeout")
Fixes: 69a6c269c0 ("scsi: ufs: Use blk_{get,put}_request() to allocate and free TMFs")
Cc: stable@vger.kernel.org
Tested-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 756fb6a895 ("scsi: acornscsi: Remove tagged queuing vestiges")
mistakenly introduced a reference to function scsi_cmd_to_tag(). This
function does not exist as it was removed from an earlier series version
when I upstreamed the named commit - originally authored By Hannes - but
this reference still remained.
Fix by replacing the reference to scsi_cmd_to_tag() with
scsi_cmd_to_rq(scsi_scmd)->tag, which scsi_cmd_to_tag() was a wrapper for.
Link: https://lore.kernel.org/r/1633002717-79765-1-git-send-email-john.garry@huawei.com
Fixes: 756fb6a895 ("scsi: acornscsi: Remove tagged queuing vestiges")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The typo in this source code comment makes the comment confusing. Clear up
the confusion by fixing the typo.
Link: https://lore.kernel.org/r/20210929182318.2060489-1-bvanassche@acm.org
Fixes: bc85dc500f ("scsi: remove scsi_end_request")
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For devices that explicitly asked for MODE SENSE(10) use, make sure that
scsi_mode_sense() is called with a buffer of at least 8 bytes so that the
sense header fits.
Link: https://lore.kernel.org/r/20210820070255.682775-4-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The MODE SELECT(6) command allows handling mode page buffers that are up to
255 bytes, including the 4 byte header needed in front of the page
buffer. For requests larger than this limit, automatically use the MODE
SELECT(10) command.
In both cases, since scsi_mode_select() adds the mode select page header,
checks on the buffer length value must include this header size to avoid
overflows of the command CDB allocation length field.
While at it, use put_unaligned_be16() for setting the header block
descriptor length and CDB allocation length when using MODE SELECT(10).
[mkp: fix MODE SENSE vs. MODE SELECT confusion]
Link: https://lore.kernel.org/r/20210820070255.682775-3-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Several problems exist with scsi_mode_sense() buffer length handling:
1) The allocation length field of the MODE SENSE(10) command is 16-bits,
occupying bytes 7 and 8 of the CDB. With this command, access to mode
pages larger than 255 bytes is thus possible. However, the CDB
allocation length field is set by assigning len to byte 8 only, thus
truncating buffer length larger than 255.
2) If scsi_mode_sense() is called with len smaller than 8 with
sdev->use_10_for_ms set, or smaller than 4 otherwise, the buffer length
is increased to 8 and 4 respectively, and the buffer is zero filled
with these increased values, thus corrupting the memory following the
buffer.
Fix these 2 problems by using put_unaligned_be16() to set the allocation
length field of MODE SENSE(10) CDB and by returning an error when len is
too small.
Furthermore, if len is larger than 255B, always try MODE SENSE(10) first,
even if the device driver did not set sdev->use_10_for_ms. In case of
invalid opcode error for MODE SENSE(10), access to mode pages larger than
255 bytes are not retried using MODE SENSE(6). To avoid buffer length
overflows for the MODE_SENSE(10) case, check that len is smaller than 65535
bytes.
While at it, also fix the folowing:
* Use get_unaligned_be16() to retrieve the mode data length and block
descriptor length fields of the mode sense reply header instead of using
an open coded calculation.
* Fix the kdoc dbd argument explanation: the DBD bit stands for Disable
Block Descriptor, which is the opposite of what the dbd argument
description was.
Link: https://lore.kernel.org/r/20210820070255.682775-2-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since commit 0653c358d2 ("scsi: Drop gdth driver"), functions
scsi_{get,free}_host_dev() no longer have any in-tree users, so delete
them.
Link: https://lore.kernel.org/r/1631528047-30150-1-git-send-email-john.garry@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Nacked-by: Hannes Reinecke <hare@suse.de>
Qualcomm controller needs to be in hibern8 before scaling clocks. This
change puts the controller in hibern8 state before scaling and brings it
out after scaling of clocks.
Link: https://lore.kernel.org/r/212b7aaf6d834c4a8c682fdac4a59b84013ed573.1632818942.git.nguyenb@codeaurora.org
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Bao D. Nguyen <nguyenb@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Qualcomm controllers need to be in hibern8 before scaling up or down the
clocks. Hence, export the hibern8 entry and exit functions.
Link: https://lore.kernel.org/r/a29bfdd0c8f1d1a3e5fb69e43ea277c97a7f0cb6.1632818942.git.nguyenb@codeaurora.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Bao D. Nguyen <nguyenb@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
At adapter attachment or SLI port initialization, read the SLIPORT_STATUS
register to check for pldv_enable. If found, the driver will perform a PCIe
configuration space write when attaching to an SLI port instance that is an
LPe32000 series adapter.
Link: https://lore.kernel.org/r/20210927183518.22130-1-jsmart2021@gmail.com
Co-developed-by: Nigel Kirkland <nkirkland2304@gmail.com>
Signed-off-by: Nigel Kirkland <nkirkland2304@gmail.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Both cxgb4 and csiostor drivers run on their own independent Physical
Function. But when cxgb4 and csiostor are both being loaded in parallel via
modprobe, there is a race when firmware upgrade is attempted by both the
drivers.
When the cxgb4 driver initiates the firmware upgrade, it halts the firmware
and the chip until upgrade is complete. When the csiostor driver is coming
up in parallel, the firmware mailbox communication fails with timeouts and
the csiostor driver probe fails.
Add a module soft dependency on cxgb4 driver to ensure loading csiostor
triggers cxgb4 to load first when available to avoid the firmware upgrade
race.
Link: https://lore.kernel.org/r/1632759248-15382-1-git-send-email-rahul.lakkireddy@chelsio.com
Fixes: a3667aaed5 ("[SCSI] csiostor: Chelsio FCoE offload driver")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When building an allmodconfig kernel, the following build error shows up:
aarch64-linux-gnu-ld: drivers/scsi/ufs/ufs-hwmon.o: in function `ufs_hwmon_probe':
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:177: undefined reference to `hwmon_device_register_with_info'
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:177:(.text+0x510): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `hwmon_device_register_with_info'
aarch64-linux-gnu-ld: drivers/scsi/ufs/ufs-hwmon.o: in function `ufs_hwmon_remove':
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:195: undefined reference to `hwmon_device_unregister'
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:195:(.text+0x5c8): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `hwmon_device_unregister'
aarch64-linux-gnu-ld: drivers/scsi/ufs/ufs-hwmon.o: in function `ufs_hwmon_notify_event':
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:206: undefined reference to `hwmon_notify_event'
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:206:(.text+0x64c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `hwmon_notify_event'
aarch64-linux-gnu-ld: /home/anders/src/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:209: undefined reference to `hwmon_notify_event'
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:209:(.text+0x66c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `hwmon_notify_event'
Since SCSI_UFS_HWMON can't be built as a module, SCSI_UFS_HWMON has to
depend on HWMON=y.
Link: https://lore.kernel.org/r/20210927084615.1938432-1-anders.roxell@linaro.org
Fixes: e88e2d3220 ("scsi: ufs: core: Probe for temperature notification support")
Also-reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Acked-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Function lpfc_sli4_perform_vport_cvl() returns a pointer to struct
lpfc_nodelist so returning a plain 0 integer isn't good practice. Fix this
by returning a NULL instead.
Link: https://lore.kernel.org/r/20210925224113.183040-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
As noted in the "Deprecated Interfaces, Language Features, Attributes, and
Conventions" documentation [1], size calculations (especially
multiplication) should not be performed in memory allocator (or similar)
function arguments due to the risk of them overflowing. This could lead to
values wrapping around and a smaller allocation being made than the caller
was expecting. Using those allocations could lead to linear overflows of
heap memory and other misbehaviors.
Use the struct_size() helper to do the arithmetic instead of the argument
"size + count * size" in the kzalloc() function.
This code was detected with the help of Coccinelle and audited and fixed
manually.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments
Link: https://lore.kernel.org/r/20210925114205.11377-1-len.baker@gmx.com
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Len Baker <len.baker@gmx.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Disable default logging of some I/O path messages. If desired, the messages
can be turned back on by setting ql2xextended_error_logging.
Link: https://lore.kernel.org/r/20210925035154.29815-1-njavali@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following coccicheck warning:
./drivers/scsi/ses.c:137:10-16: WARNING: Unsigned expression compared
with zero: result > 0.
Link: https://lore.kernel.org/r/1632477113-90378-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix incorrect index for UTMRD reference in ufshcd_add_tm_upiu_trace().
Link: https://lore.kernel.org/r/20210924085848.25500-1-jonathan.hsu@mediatek.com
Fixes: 4b42d557a8 ("scsi: ufs: core: Fix wrong Task Tag used in task management request UPIUs")
Cc: stable@vger.kernel.org
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jonathan Hsu <jonathan.hsu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Setting SCSI logging level with error=3, we saw some errors from enclosues:
[108017.360833] ses 0:0:9:0: tag#641 Done: NEEDS_RETRY Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
[108017.360838] ses 0:0:9:0: tag#641 CDB: Receive Diagnostic 1c 01 01 00 20 00
[108017.427778] ses 0:0:9:0: Power-on or device reset occurred
[108017.427784] ses 0:0:9:0: tag#641 Done: SUCCESS Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
[108017.427788] ses 0:0:9:0: tag#641 CDB: Receive Diagnostic 1c 01 01 00 20 00
[108017.427791] ses 0:0:9:0: tag#641 Sense Key : Unit Attention [current]
[108017.427793] ses 0:0:9:0: tag#641 Add. Sense: Bus device reset function occurred
[108017.427801] ses 0:0:9:0: Failed to get diagnostic page 0x1
[108017.427804] ses 0:0:9:0: Failed to bind enclosure -19
[108017.427895] ses 0:0:10:0: Attached Enclosure device
[108017.427942] ses 0:0:10:0: Attached scsi generic sg18 type 13
Retry if the Send/Receive Diagnostic commands complete with a transient
error status (NOT_READY or UNIT_ATTENTION with ASC 0x29).
Link: https://lore.kernel.org/r/1631849061-10210-2-git-send-email-wenxiong@linux.ibm.com
Reviewed-by: Brian King <brking@linux.ibm.com>
Reviewed-by: James Bottomley <jejb@linux.ibm.com>
Signed-off-by: Wen Xiong <wenxiong@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Contention for the mailbox interface may occur during driver initialization
(immediately after a function reset), between mailbox commands initiated
via ioctl (bsg) and those driver requested by the driver.
After setting SLI_ACTIVE flag for a port, there is a window in which the
driver will allow an ioctl to be initiated while the adapter is
initializing and issuing mailbox commands via polling. The polling logic
then gets confused.
Correct by having thread setting SLI_ACTIVE spot an active mailbox command
and allow it complete before proceeding.
Link: https://lore.kernel.org/r/20210921143008.64212-1-jsmart2021@gmail.com
Co-developed-by: Nigel Kirkland <nkirkland2304@gmail.com>
Signed-off-by: Nigel Kirkland <nkirkland2304@gmail.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
dc395x_init_one()->adapter_init() might fail. In this case, the acb is
already cleaned up by adapter_init(), no need to do that in
adapter_uninit(acb) again.
[ 1.252251] dc395x: adapter init failed
[ 1.254900] RIP: 0010:adapter_uninit+0x94/0x170 [dc395x]
[ 1.260307] Call Trace:
[ 1.260442] dc395x_init_one.cold+0x72a/0x9bb [dc395x]
Link: https://lore.kernel.org/r/20210907040702.1846409-1-ztong0001@gmail.com
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reviewed-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
