- 17 Sep, 2018 1 commit
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Vivek Gautam authored
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: 401f1e44 ("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>
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- 12 Sep, 2018 39 commits
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Colin Ian King authored
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:
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Deepak Ukey authored
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:
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Deepak Ukey authored
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:
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Deepak Ukey authored
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:
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Deepak Ukey authored
Added proper mask for phy id in mpi_phy_stop_resp(). Signed-off-by:
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Colin Ian King authored
Trivial fix to typo in debug message text. Signed-off-by:
Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by:
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Colin Ian King authored
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:
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YueHaibing authored
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:
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Geert Uytterhoeven authored
Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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George Kennedy authored
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:
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James Smart authored
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:
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James Smart authored
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:
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James Smart authored
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:
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James Smart authored
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:
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James Smart authored
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:
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James Smart authored
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:
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James Smart authored
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:
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James Smart authored
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:
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James Smart authored
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: -
James Smart authored
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:
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James Smart authored
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:
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Himanshu Madhani authored
Signed-off-by:
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Quinn Tran authored
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:
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Quinn Tran authored
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:
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Quinn Tran authored
Remove stale debug trace. Fixes: 1eb42f96 ("qla2xxx: Make trace flags more readable") Cc: stable@vger.kernel.org #4.10 Signed-off-by:
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Quinn Tran authored
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:
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Quinn Tran authored
Reject bsg request if chip is down. This prevent erroneous timeout. Fixes: d051a5aa ("[SCSI] qla2xxx: Add an "is reset active" helper.") Cc: stable@vger.kernel.org # 4.10 Signed-off-by:
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Quinn Tran authored
If chip unable to fully initialize, use full shutdown sequence to clear out any stale FW state. Fixes: e315cd28 ("[SCSI] qla2xxx: Code changes for qla data structure refactoring") Cc: stable@vger.kernel.org #4.10 Signed-off-by:
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Quinn Tran authored
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:
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Quinn Tran authored
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: f6145e86 ("scsi: qla2xxx: Fix race between switch cmd completion and timeout") Cc: stable@vger.kernel.org # 4.19 Signed-off-by:
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Quinn Tran authored
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:
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Quinn Tran authored
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:
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Quinn Tran authored
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:
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Quinn Tran authored
Clear port speed value on chip reset. Signed-off-by:
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Sawan Chandak authored
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:
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Quinn Tran authored
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:
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Darren Trapp authored
This patch allows FC-NVMe under-run to be handled by transport Signed-off-by:
Darren Trapp <darren.trapp@cavium.com> Signed-off-by:
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Himanshu Madhani authored
Signed-off-by:
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Quinn Tran authored
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:
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