Commit Graph

781706 Commits

Author SHA1 Message Date
YueHaibing
fdd0a66b7a scsi: pm80xx: Remove set but not used variable 'page_code'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/pm8001/pm80xx_hwi.c: In function 'pm8001_set_phy_profile':
drivers/scsi/pm8001/pm80xx_hwi.c:4679:6: warning:
 variable 'page_code' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-17 02:26:15 -04:00
YueHaibing
78d85f3151 scsi: pm80xx: Remove set but not used variable 'device_id'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/pm8001/pm8001_sas.c: In function 'pm8001_I_T_nexus_event_handler':
drivers/scsi/pm8001/pm8001_sas.c:1052:6: warning:
 variable 'device_id' set but not used [-Wunused-but-set-variable]

drivers/scsi/pm8001/pm8001_sas.c: In function 'pm8001_abort_task':
drivers/scsi/pm8001/pm8001_sas.c:1191:6: warning:
 variable 'device_id' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-17 02:23:03 -04:00
Vivek Gautam
eebcc19646 scsi: ufshcd: Fix NULL pointer dereference for in ufshcd_init
Error paths in ufshcd_init() ufshcd_hba_exit() killed clk_scaling workqueue
when the workqueue is actually created quite late in ufshcd_init().  So, we
end up getting NULL pointer dereference in such error paths.  Fix this by
moving clk_scaling initialization and kill codes to two separate methods, and
call them at required places.

Fixes: 401f1e4490 ("scsi: ufs: don't suspend clock scaling during clock
gating")

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Subhash Jadavani <subhashj@codeaurora.org>
Cc: Matthias Kaehlcke <mka@chromium.org>
Cc: Evan Green <evgreen@chromium.org>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-17 02:04:14 -04:00
Colin Ian King
94e989dee2 scsi: message: fusion: fix a few trivial spelling mistakes
Trival fix to spelling mistakes:

 PrimativeSeqErrCount -> PrimitiveSeqErrCount
 Primative -> Primitive
 primative -> primitive
 mptsas_broadcast_primative_work -> mptsas_broadcast_primitive_work
 Broadcase -> Broadcast

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 21:18:06 -04:00
Deepak Ukey
b5dedc756d scsi: pm80xx: Update driver version to 0.1.39
Updated the driver version from 0.1.38 to 0.1.39.

Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 21:15:09 -04:00
Deepak Ukey
72349b62a5 scsi: pm80xx: Fixed system hang issue during kexec boot
When the firmware is not responding, execution of kexec boot causes a system
hang. When firmware assertion happened, driver get notified with interrupt
vector updated in MPI configuration table. Then, the driver will read
scratchpad register and set controller_fatal_error flag to true.

Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 21:14:38 -04:00
Deepak Ukey
76cb25b058 scsi: pm80xx: Corrected dma_unmap_sg() parameter
For the function dma_unmap_sg(), the <nents> parameter should be number of
elements in the scatter list prior to the mapping, not after the mapping.

Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 21:13:49 -04:00
Deepak Ukey
cd135754d8 scsi: pm80xx: Fix for phy enable/disable functionality
Added proper mask for phy id in mpi_phy_stop_resp().

Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 21:13:08 -04:00
Colin Ian King
0b1b1d8861 scsi: qla2xxx: fix typo "CT-PASSTRHU" -> "CT-PASSTHRU"
Trivial fix to typo in debug message text.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 21:10:19 -04:00
Colin Ian King
aed922fa73 scsi: aic7xxx: remove unused redundant variable num_chip_names
Variable num_chip_names is defined but not used, hence it is redundant and can
be removed.

Cleans up clang warning:
'num_chip_names' defined but not used [-Wunused-const-variable=]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 21:03:24 -04:00
YueHaibing
5b075efb42 scsi: libfc: remove set but not used variable 'rpriv'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/libfc/fc_fcp.c: In function 'fc_queuecommand':
drivers/scsi/libfc/fc_fcp.c:1875:30: warning:
 variable 'rpriv' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:59:11 -04:00
Geert Uytterhoeven
948dff7a41 scsi: arcmsr: Spelling s/rebulid/rebuild/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:58:29 -04:00
George Kennedy
288315e952 scsi: sym53c8xx: fix NULL pointer dereference panic in sym_int_sir()
sym_int_sir() in sym_hipd.c does not check the command pointer for NULL before
using it in debug message prints.

Suggested-by: Matthew Wilcox <matthew.wilcox@oracle.com>
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Reviewed-by: Mark Kanda <mark.kanda@oracle.com>
Acked-by: Matthew Wilcox <matthew.wilcox@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:54:02 -04:00
James Smart
6318cb7fb0 scsi: lpfc: update driver version to 12.0.0.7
Update the driver version to 12.0.0.7

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:34 -04:00
James Smart
d2cc9bcd7f scsi: lpfc: add support to retrieve firmware logs
This patch adds the ability to read firmware logs from the adapter. The driver
registers a buffer with the adapter that is then written to by the adapter.
The adapter posts CQEs to indicate content updates in the buffer. While the
adapter is writing to the buffer in a circular fashion, an application will
poll the driver to read the next amount of log data from the buffer.

Driver log buffer size is configurable via the ras_fwlog_buffsize sysfs
attribute. Verbosity to be used by firmware when logging to host memory is
controlled through the ras_fwlog_level attribute.  The ras_fwlog_func
attribute enables or disables loggy by firmware.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
18027a8ccc scsi: lpfc: reduce locking when updating statistics
Currently, on each io completion, the stats update routine indiscriminately
holds a lock. While holding the adapter-wide lock, checks are made to check
whether status are being tracked. When disabled (the default), the locking
wasted a lot of cycles.

Check for stats enablement before taking the lock.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
2879265f51 scsi: lpfc: Fix errors in log messages.
Message 6408 is displayed for each entry in an array, but the cpu and queue
numbers were incorrect for the entry.  Message 6001 includes an extraneous
character.

Resolve both issues

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
aad59d5d34 scsi: lpfc: Correct invalid EQ doorbell write on if_type=6
During attachment, the driver writes the EQ doorbell to disable potential
interrupts from an EQ. The current EQ doorbell format used for clearing the
interrupt is incorrect and uses an if_type=2 format, making the operation act
on the wrong EQ.

Correct the code to use the proper if_type=6 EQ doorbell format.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
523128e53b scsi: lpfc: Correct irq handling via locks when taking adapter offline
When taking the board offline while performing i/o, unsafe locking errors
occurred and irq level isn't properly managed.

In lpfc_sli_hba_down, spin_lock_irqsave(&phba->hbalock, flags) does not
disable softirqs raised from timer expiry.  It is possible that a softirq is
raised from the lpfc_els_retry_delay routine and recursively requests the same
phba->hbalock spinlock causing deadlock.

Address the deadlocks by creating a new port_list lock. The softirq behavior
can then be managed a level deeper into the calling sequences.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
0ef01a2d95 scsi: lpfc: Correct soft lockup when running mds diagnostics
When running an mds diagnostic that passes frames with the switch, soft
lockups are detected. The driver is in a CQE processing loop and has
sufficient amount of traffic that it never exits the ring processing routine,
thus the "lockup".

Cap the number of elements in the work processing routine to 64 elements. This
ensures that the cpu will be given up and the handler reschedule to process
additional items.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
ca7fb76e09 scsi: lpfc: Correct race with abort on completion path
On io completion, the driver is taking an adapter wide lock and nulling the
scsi command back pointer.  The nulling of the back pointer is to signify the
io was completed and the scsi_done() routine was called.  However, the routine
makes no check to see if the abort routine had done the same thing and
possibly nulled the pointer. Thus it may doubly-complete the io.

Make the following mods:

- Check to make sure forward progress (call scsi_done()) only happens if the
  command pointer was non-null.

- As the taking of the lock, which is adapter wide, is very costly on a system
  under load, null the pointer using an xchg operation rather than under lock.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
faf0a5f829 scsi: lpfc: Raise nvme defaults to support a larger io and more connectivity
When nvme is enabled, change the default for two parameters:
 sg_seg_cnt - raise the per-io sg list size so that 1MB ios are
     supported (based on a 4k buffer per element).
 iocb_cnt - raise the number of buffers used for things like
     NVME LS request/responses to allow more concurrent requests
     to for larger nvme configs.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
5b9e70b22c scsi: lpfc: raise sg count for nvme to use available sg resources
The driver allocates a sg list per io struture based on a fixed maximum
size. When it registers with the protocol transports and indicates the max sg
list size it supports, the driver manipulates the fixed value to report a
lesser amount so that it has reserved space for sg elements that are used for
DIF.

The driver initialization path sets the cfg_sg_seg_cnt field to the
manipulated value for scsi. NVME initialization ran afterward and capped it's
maximum by the manipulated value for SCSI. This erroneously made NVME report
the SCSI-reduce-for-DIF value that reduced the max io size for nvme and wasted
sg elements.

Rework the driver so that cfg_sg_seg_cnt becomes the overall maximum size and
allow the max size to be tunable.  A separate (new) scsi sg count is then
setup with the scsi-modified reduced value. NVME then initializes based off
the overall maximum.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:33 -04:00
James Smart
01a8aed6a0 scsi: lpfc: Fix GFT_ID and PRLI logic for RSCN
Driver only sends NVME PRLI to a device that also supports FCP.  This resuls
in remote ports that don't have fc_remote_ports created for them. The driver
is clearing the nlp_fc4_type for a ndlp at the wrong time.

Fix by moving the nlp_fc4_type clearing to the discovery engine in the
DEVICE_RECOVERY state. Also ensure that rport registration is done for all
nlp_fc4_types.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:37:32 -04:00
Himanshu Madhani
a64a290ec6 scsi: qla2xxx: Update driver version to 10.00.00.11-k
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
a110af851a scsi: qla2xxx: Fix double increment of switch scan retry count
This patch fixes issue when switch command fails, current code increments
retry count twice. This results in a smaller number of retries.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
f3a03ee110 scsi: qla2xxx: Fix duplicate switch's Nport ID entries
Current code relies on switch to provide a unique combination of WWPN +
NPORTID to tract an FC port.  This patch tries to detect a case where switch
data base can get corrupted where multiple WWPNs can have the same Nport ID.
The 1st Nport ID on the list will be kept while the duplicate Nport ID will be
discarded.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
7c388f91ec scsi: qla2xxx: Remove stale debug trace message from tcm_qla2xxx
Remove stale debug trace.

Fixes: 1eb42f965c ("qla2xxx: Make trace flags more readable")
Cc: stable@vger.kernel.org #4.10
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
d594db0187 scsi: qla2xxx: Fix premature command free
When qla2xxx and Target Core gets out of sync during command cleanup, qla2xxx
will not free command until it is out of firmware's hand and Target Core has
called the release on the command.

This patch adds synchronization using cmd_lock and release flag.  If the
release flag is set, then qla2xxx will free up the command using
qlt_free_cmd() otherwise transport_generic_free_cmd() will be responsible for
relase of the command.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
56d942de59 scsi: qla2xxx: Reject bsg request if chip is down.
Reject bsg request if chip is down.  This prevent erroneous timeout.

Fixes: d051a5aa1c ("[SCSI] qla2xxx: Add an "is reset active" helper.")
Cc: stable@vger.kernel.org # 4.10
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
1e4ac5d6fe scsi: qla2xxx: shutdown chip if reset fail
If chip unable to fully initialize, use full shutdown sequence to clear out
any stale FW state.

Fixes: e315cd28b9 ("[SCSI] qla2xxx: Code changes for qla data structure refactoring")
Cc: stable@vger.kernel.org  #4.10
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
861d483dcd scsi: qla2xxx: Fix stuck session in PLOGI state
On PLOGI complete + RSCN received, driver tries to handle RSCN but failed to
reset the session back to the beginning to restart the login process. Instead
the session was left in the Plogi complete without moving forward.  This patch
will push the session state back to the delete state and restart the
connection.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
8235f4b5ae scsi: qla2xxx: Fix early srb free on abort
Task abort can take 2 paths: 1) serial/synchronous abort where the calling
thread will put to sleep, wait for completion and free cmd resource.  2) async
abort where the cmd free will be free by the completion thread.  For path 2,
driver is freeing the SRB too early.

Fixes: f6145e86d2 ("scsi: qla2xxx: Fix race between switch cmd completion and timeout")
Cc: stable@vger.kernel.org # 4.19
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:10 -04:00
Quinn Tran
0645cb8350 scsi: qla2xxx: Add mode control for each physical port
Add ability to allow each physical port to control operating mode.  Current
code forces all ports to behave in one mode (i.e. initiator, target or
dual). This patch allows user to select the operating mode for each port.

- Driver must be loaded in dual mode to allow resource allocation

modprobe qla2xxx qlini_mode=dual

- In addition user can make adjustment to exchange resources using following
  command

echo 1024 > /sys/class/scsi_host/host<x>/ql2xiniexchg
echo 1024 > /sys/class/scsi_host/host<x>/ql2xexchoffld

- trigger mode change and new setting of ql2xexchoffld|ql2xiniexchg

echo [<value>] > /sys/class/scsi_host/host<x>/qlini_mode

where, value can be one of following
  - enabled
  - disabled
  - dual
  - exclusive

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Quinn Tran
0e324e949e scsi: qla2xxx: Fix race condition for resource cleanup
For Loop topology + Initiator, FW is in control of PLOGI/PRLI.  When link is
reset, driver will try to cleanup the session by doing an Implicit Logout.
Instead, the code is doing an Explicit Logout.  The explicit logout interferes
with FW state machine in trying to reconnect.  The implicit logout was meant
for FW to flush commands.  In loop, it is not needed because FW will auto
flush.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Quinn Tran
527b8ae394 scsi: qla2xxx: Fix dropped srb resource.
When FW rejects a command due to "entry_status" error (malform IOCB), the srb
resource needs to be returned back for cleanup.  The filter to catch this is
in the wrong location.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Quinn Tran
5d74c87a20 scsi: qla2xxx: Fix port speed display on chip reset
Clear port speed value on chip reset.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Sawan Chandak
f99c5d294b scsi: qla2xxx: Check for Register disconnect
During adapter shutdown process check for register disconnect before
proceeding to call PCI functions.

Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Quinn Tran
8bccfe0d21 scsi: qla2xxx: Increase abort timeout value
Abort IOCB request can take up to 40s or 2 ABTS timeout.  We will wait for
ABTS response for 20s. On a timeout, second ABTS can go out with another 20s
timeout. On 2nd ABTS timeout FW will automatically do Logout.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Darren Trapp
4072e1dcd8 scsi: qla2xxx: Allow FC-NVMe underrun to be handled by transport
This patch allows FC-NVMe under-run to be handled by transport

Signed-off-by: Darren Trapp <darren.trapp@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Himanshu Madhani
950c6ab7b5 scsi: qla2xxx: Update driver version to 10.00.00.10-k
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Quinn Tran
585def9b2f scsi: qla2xxx: Move ABTS code behind qpair
Current abort code defaults to legacy single queue where hardware_lock is used
to protect command search.  This patch moves this code behind the QPair where
the qp_lock_ptr will reference the appropriate lock for either legacy/single
queue or MQ.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Himanshu Madhani
5512e52332 scsi: qla2xxx: Remove stale ADISC_DONE event
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:09 -04:00
Quinn Tran
aecf043443 scsi: qla2xxx: Fix Remote port registration
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:08 -04:00
Himanshu Madhani
d4f7a16aec scsi: qla2xxx: Remove ASYNC GIDPN switch command
Using GPNFT/GNNFT command will be able to cover switch database with less
number of scans. This patch removes Get NportID with provided WWPN/GIDPN
switch command. By making this change, in large fabric with lots of remote
port or NPIV ports with noisy SAN, the number of GIDPN commands issued by a
port when it detects large number of remote ports going away or coming back,
can overwhelmn the switch and it can becomde unresponsive. In a case where the
fabric has not change, GIDPN is not required.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:08 -04:00
Quinn Tran
0aca77843e scsi: qla2xxx: Reduce holding sess_lock to prevent CPU lock-up
- Reduce sess_lock holding to prevent CPU Lock up. sess_lock was held across
  fc_port registration and deletion.  These calls can be blocked by upper
  layer. Sess_lock is also being accessed by interrupt thread.

- Reduce number of loops in processing work_list to prevent kernel complaint
  of CPU lockup or holding sess_lock.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:08 -04:00
Quinn Tran
6a62946892 scsi: qla2xxx: Move {get|rel}_sp to base_qpair struct
Currently, qla2x00_[get_sp|rel_sp] routines does {get|release} of srb
resource/srb_mempool directly from qla_hw_data.  qla2x00_start_sp() is used to
issue management commands through the default Request Q 0 & Response Q 0 or
base_qpair. This patch moves access of these resources through
base_qpair. Instead of having knowledge of specific Q number and lock to
rsp/req queue, this change will key off the qpair that is assigned to the srb
resource. This lays the ground work for other routines to see this resource
through the qpair.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:08 -04:00
Quinn Tran
8b4673ba3a scsi: qla2xxx: Add support for ZIO6 interrupt threshold
Add sysfs support to control zio6 interrupt threshold. Using this sysfs hook
user can set when to generate interrupts. This value will be used to tell
firmware to generate interrupt at a certain interval.  If the number of
exchanges/commands fall below defined setting, then the interrupt will be
generated immediately by the firmware.

By default ZIO6 will coalesce interrupts to a specified interval
regardless of low traffic or high traffic.

[mkp: fixed several typos]

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:08 -04:00
Quinn Tran
6b0431d6fa scsi: qla2xxx: Fix out of order Termination and ABTS response
Following changes are added by this patch

- Prevent ABTS Response from getting in front of Termination of exchange.
  Firmware requires driver to cleanup exchanges before ABTS response can be
  sent. This reduces ABTS response error which triggers extra command
  re-termination and re-sending of ABTS response.

- Add bits in driver and tracks CTIO/ATIO attribute bits for proper command
  Termination. A copy of the ATTR bits will be kept in the ABTS task
  management command as a back up copy, if an ABTS response encounters an
  error.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:08 -04:00
Quinn Tran
0691094ff3 scsi: qla2xxx: Add logic to detect ABTS hang and response completion
ABTS error completion can trigger an exchange cleanup from the driver and
another ABTS response will be generated.  This retry of ABTS response can
cause loop between driver trying to send ABTS and firmware returning error.

This patch fixes this issue by adding logic to check for unresolved exchanges
and clean up before ABTS is retried.  This patch also addes the fix to use the
same qpair as the ABTS completion for the terminatation of exchange as well as
retry of ABTS response.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11 20:28:08 -04:00