This patch fixes issue where driver clears NPort ID map instead of marking
handle in use. Once driver clears NPort ID from the database, it can reuse
the same NPort ID resulting in a PLOGI failure.
[mkp: fixed Himanshu's SoB]
Fixes: a084fd68e1 ("scsi: qla2xxx: Fix re-login for Nport Handle in use")
Cc: <stable@vger.kernel.org>
Signed-of-by: Quinn Tran <quinn.tran@cavium.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Himanshu Madhani <hmadhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The response data buffer used in switch scan is reused 4 times. (For example,
for commands GPN_FT, GNN_FT for FCP and FC-NVME) Before driver reuses this
buffer, clear it to prevent duplicate entries in our database.
Fixes: a4239945b8 ("scsi: qla2xxx: Add switch command to simplify fabric discovery"
Cc: <stable@vger.kernel.org>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch fixes issue when remoteport registers itself as both FCP and
FC-NVMe with the switch, driver will pick FC-NVMe personality as default when
scanning for targets.
Driver was using comaprative operator instead of bitwise operator to check for
fc4_type for both FCP and FC-NVME.
Fixes: 2b5b96473e ("scsi: qla2xxx: Fix FC-NVMe LUN discovery")
Cc: <stable@vger.kernel.org>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We shouldn't allow negative thresholds. I don't know what it would do
but it can't be good.
Fixes: 8b4673ba3a ("scsi: qla2xxx: Add support for ZIO6 interrupt threshold")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Default value of ql2xasynctmfenable for qla2xxx driver was set to 1 in
commit 043dc1d7e8 ("scsi: qla2xxx: Enable Async TMF processing") but
comment in MODULE_PARAM_DESC was not modified.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
csk leak can happen if a new TCP connection gets established after
cxgbit_accept_np() returns, to fix this leak free remaining csk in
cxgbit_free_np().
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When the lldd is processing the complete sas task in interrupt and set the
task stat as SAS_TASK_STATE_DONE, the smp timeout timer is able to be
triggered at the same time. And smp_task_timedout() will complete the task
wheter the SAS_TASK_STATE_DONE is set or not. Then the sas task may freed
before lldd end the interrupt process. Thus a use-after-free will happen.
Fix this by calling the complete() only when SAS_TASK_STATE_DONE is not
set. And remove the check of the return value of the del_timer(). Once the
LLDD sets DONE, it must call task->done(), which will call
smp_task_done()->complete() and the task will be completed and freed
correctly.
Reported-by: chenxiang <chenxiang66@hisilicon.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
CC: John Garry <john.garry@huawei.com>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
CC: Hannes Reinecke <hare@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When ata device IDENTIFY failed, the ata device status is ATA_DEV_UNKNOWN. The
libata reported like:
[113518.620433] ata5.00: qc timeout (cmd 0xec)
[113518.653646] ata5.00: failed to IDENTIFY (I/O error, err_mask=0x4)
But libsas verifies the device status by ata_dev_disabled(), which skipped
ATA_DEV_UNKNOWN. This will make libsas think the ata device probing succeed
the device cannot be actually brought up. And even the new bcast of this
device will be considered as flutter and will not probe this device again.
Change ata_dev_disabled() to !ata_dev_enabled() so that libsas can deal with
this if the ata device probe failed. New bcasts can let us try to probe the
device again and bring it up if it is fine to IDENTIFY.
Tested-by: Zhou Yupeng <zhouyupeng1@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
CC: John Garry <john.garry@huawei.com>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
CC: Hannes Reinecke <hare@suse.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If we went into sas_rediscover_dev() the attached_sas_addr was already insured
not to be zero. So it's unnecessary to check if the attached_sas_addr is zero.
And although if the sas address is not changed, we always have to unregister
the old device when we are going to register a new one. We cannot just leave
the device there and bring up the new.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
CC: chenxiang <chenxiang66@hisilicon.com>
CC: John Garry <john.garry@huawei.com>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
CC: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Now LLDDs have to implement lldd_port_deformed method otherwise NULL
dereference will happen. Make it optional and remove the dummy implementation
in hisi_sas.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
CC: John Garry <john.garry@huawei.com>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
CC: Hannes Reinecke <hare@suse.com>
Acked-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This code is dead and no clue implies that it will be back again.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
CC: John Garry <john.garry@huawei.com>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
CC: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Trivial fix to spelling mistake in warning message and comments
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Clang warns when multiple pairs of parentheses are used for a single
conditional statement.
In file included from drivers/scsi/BusLogic.c:57:
drivers/scsi/FlashPoint.c:2947:34: warning: equality comparison with extraneous parentheses [-Wparentheses-equality]
if ((currSCCB->Sccb_scsistat == SELECT_SN_ST)) {
~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
drivers/scsi/FlashPoint.c:2947:34: note: remove extraneous parentheses around the comparison to silence this warning
if ((currSCCB->Sccb_scsistat == SELECT_SN_ST)) {
~ ^ ~
drivers/scsi/FlashPoint.c:2947:34: note: use '=' to turn this equality comparison into an assignment
if ((currSCCB->Sccb_scsistat == SELECT_SN_ST)) {
^~
=
drivers/scsi/FlashPoint.c:2956:39: warning: equality comparison with extraneous parentheses [-Wparentheses-equality]
else if ((currSCCB->Sccb_scsistat ==
~~~~~~~~~~~~~~~~~~~~~~~~^~
drivers/scsi/FlashPoint.c:2956:39: note: remove extraneous parentheses around the comparison to silence this warning
else if ((currSCCB->Sccb_scsistat ==
~ ^
drivers/scsi/FlashPoint.c:2956:39: note: use '=' to turn this equality comparison into an assignment
else if ((currSCCB->Sccb_scsistat ==
^~
=
2 warnings generated.
Link: https://github.com/ClangBuiltLinux/linux/issues/156
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Khalid Aziz <khalid@gonehiking.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
vmemdup_user is better than duplicating its implementation, So just replace
the open code.
The issue is detected with the help of Coccinelle.
Tested-by: Don Brace <don.brace@microsemi.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Clang warns when multiple pairs of parentheses are used for a single
conditional statement.
drivers/scsi/advansys.c:6451:20: warning: equality comparison with
extraneous parentheses [-Wparentheses-equality]
if ((sdtr_data == 0xFF)) {
~~~~~~~~~~^~~~~~~
drivers/scsi/advansys.c:6451:20: note: remove extraneous parentheses
around the comparison to silence this warning
if ((sdtr_data == 0xFF)) {
~ ^ ~
drivers/scsi/advansys.c:6451:20: note: use '=' to turn this equality
comparison into an assignment
if ((sdtr_data == 0xFF)) {
^~
=
1 warning generated.
Link: https://github.com/ClangBuiltLinux/linux/issues/155
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When T10 PI is enabled on a backing device for the iblock backstore, the PI
SGL for the entire command is attached to the first bio only. This works fine
if the command is covered by a single bio, but can result in ref tag errors in
the client for the other bios in a multi-bio command, e.g.
[ 47.631236] sda: ref tag error at location 2048 (rcvd 0)
[ 47.637658] sda: ref tag error at location 4096 (rcvd 0)
[ 47.644228] sda: ref tag error at location 6144 (rcvd 0)
The command will be split into multiple bios if the number of data SG elements
exceeds BIO_MAX_PAGES (see iblock_get_bio()).
The bios may later be split again in the block layer on the host after
iblock_submit_bios(), depending on the queue limits of the backing device.
The block and SCSI layers will pass through the whole PI SGL down to the LLDD
however that first bio is split up, but the LLDD may only use the portion that
corresponds to the data length (depends on the LLDD, tested with scsi_debug).
Split the PI SGL across the bios in the command, so each bio's
bio_integrity_payload contains the protection information for the data in the
bio. Use an sg_mapping_iter to keep track of where we are in PI SGL, so we
know where to start with the next bio.
Signed-off-by: Greg Edwards <gedwards@ddn.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/qla2xxx/qla_iocb.c: In function 'qla24xx_els_dcmd2_iocb':
drivers/scsi/qla2xxx/qla_iocb.c:2644:13: warning:
variable 'ptr_dma' set but not used [-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/lpfc/lpfc_nvme.c: In function 'lpfc_new_nvme_buf':
drivers/scsi/lpfc/lpfc_nvme.c:2238:24: warning:
variable 'sgl_size' set but not used [-Wunused-but-set-variable]
int bcnt, num_posted, sgl_size;
^
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/bnx2fc/bnx2fc_fcoe.c: In function 'bnx2fc_rcv':
drivers/scsi/bnx2fc/bnx2fc_fcoe.c:435:17: warning:
variable 'oxid' set but not used [-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
BUG_ON() already contains an unlikely(), there is no need for another one.
Signed-off-by: Igor Stoppa <igor.stoppa@huawei.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: linux-scsi@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/aic7xxx/aic79xx_pci.c: In function 'ahd_pci_config':
drivers/scsi/aic7xxx/aic79xx_pci.c:291:19: warning:
variable 'shared_scb_data' set but not used [-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Trivial fix to spelling mistake in function name and comment
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
