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2022-09-01scsi: qla2xxx: Revert "scsi: qla2xxx: Fix response queue handler reading ↵Arun Easi
stale packets" Reverting this commit so that a fixed up patch, without adding new module parameters, can be submitted. Link: https://lore.kernel.org/stable/166039743723771@kroah.com/ This reverts commit b1f707146923335849fb70237eec27d4d1ae7d62. Link: https://lore.kernel.org/r/20220826102559.17474-2-njavali@marvell.com Cc: stable@vger.kernel.org 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>
2022-09-01scsi: qla2xxx: Log message "skipping scsi_scan_host()" as informationalMauricio Faria de Oliveira
This message is helpful to troubleshoot missing LUNs/SAN boot errors. It'd be nice to log it by default instead of only being enabled with debug. This user had an accidental/forgotten file modprobe.d/qla2xxx.conf w/ option qlini_mode=disabled from experiments with FC target mode, and their boot LUN didn't come up, as it skips SCSI scan, of course. However, their boot log didn't provide any clues to help understand that. The issue/message could be figured out w/ ql2xextended_error_logging, but it would have been simpler (or even deflected/addressed by user) if it had been there by default. And it also would help support/triage/deflection tooling. Expected change: scsi host15: qla2xxx +qla2xxx [0000:3b:00.0]-00fb:15: skipping scsi_scan_host() for non-initiator port qla2xxx [0000:3b:00.0]-00fb:15: QLogic QLE2692 - QLE2692 Dual Port 16Gb FC to PCIe Gen3 x8 Adapter. According to: qla2x00_probe_one() ... ret = scsi_add_host(...); ... ql_log(ql_log_info, ... "skipping scsi_scan_host() for non-initiator port\n"); ... ql_log(ql_log_info, ... "QLogic %s - %s.\n", ha->model_number, ha->model_desc); Link: https://lore.kernel.org/r/20220825120159.275051-1-mfo@canonical.com Tested-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Mauricio Faria de Oliveira <mfo@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-01scsi: lpfc: Return DID_TRANSPORT_DISRUPTED instead of DID_REQUEUEHannes Reinecke
When the driver hits an internal error condition returning DID_REQUEUE the I/O will be retried on the same ITL nexus. This will inhibit multipathing, resulting in endless retries even if the error could have been resolved by using a different ITL nexus. Return DID_TRANSPORT_DISRUPTED to allow for multipath to engage and route I/O to another ITL nexus. Link: https://lore.kernel.org/r/20220824060033.138661-1-hare@suse.de Reviewed-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-01scsi: mpt3sas: Update driver version to 43.100.00.00Sreekanth Reddy
Update driver version to 43.100.00.00. Link: https://lore.kernel.org/r/20220825075457.16422-5-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-01scsi: mpt3sas: Increase cmd_per_lun to 128Sreekanth Reddy
With cmd_per_lun value 7, a higher number of cache lines (map_nr) are needed while allocating sdev->budget_map which is not reasonable and hence increase the cmd_per_lun value to 128. Link: https://lore.kernel.org/r/20220825075457.16422-4-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-01scsi: mpt3sas: Fix trace buffer registration failedSreekanth Reddy
The ExtendedType field was set to 1 in the diag buffer register command and hence MPT Endpoint firmware is failing the request with Invalid Field IOCStatus. memset the request frame to zero before framing the diag buffer register command. Link: https://lore.kernel.org/r/20220825075457.16422-3-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-01scsi: mpt3sas: Don't change DMA mask while reallocating poolsSreekanth Reddy
When a pool crosses the 4GB boundary region then before reallocating pools change the coherent DMA mask to 32 bits and keep the normal DMA mask set to 63/64 bits. Link: https://lore.kernel.org/r/20220825075457.16422-2-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-01scsi: mpt3sas: Prevent error handler escalation when device removedSreekanth Reddy
If SCSI error handling is taking place for timed out I/Os on a drive and the corresponding drive is removed, then stop escalating to higher level of reset by returning the TUR with "I_T NEXUS LOSS OCCURRED" sense key. Link: https://lore.kernel.org/r/20220816080801.13929-1-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: megaraid_sas: Use struct_size() in code related to struct ↵Gustavo A. R. Silva
MR_PD_CFG_SEQ_NUM_SYNC Prefer struct_size() over open-coded versions of idiom: sizeof(struct-with-flex-array) + sizeof(type-of-flex-array) * count where count is the max number of items the flexible array is supposed to have. Link: https://github.com/KSPP/linux/issues/160 Link: https://lore.kernel.org/r/b215f4760f0e8fbe5fc35be20f2487e89924424d.1660592640.git.gustavoars@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: megaraid_sas: Use struct_size() in code related to struct MR_FW_RAID_MAPGustavo A. R. Silva
Prefer struct_size() over open-coded versions of idiom: sizeof(struct-with-flex-array) + sizeof(type-of-flex-array) * count where count is the max number of items the flexible array is supposed to have. Link: https://github.com/KSPP/linux/issues/160 Link: https://lore.kernel.org/r/1211398fb8f7ab332a93f4f8f1a63e8168dbd002.1660592640.git.gustavoars@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: megaraid_sas: Replace one-element array with flexible-array member in ↵Gustavo A. R. Silva
MR_PD_CFG_SEQ_NUM_SYNC One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in struct MR_PD_CFG_SEQ_NUM_SYNC and refactor the rest of the code accordingly. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays [0]. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/109 Link: Link: https://reviews.llvm.org/D126864 [0] Link: https://lore.kernel.org/r/78e9261591db072b67fcf49f0216d7046a67ca6d.1660592640.git.gustavoars@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: megaraid_sas: Replace one-element array with flexible-array member in ↵Gustavo A. R. Silva
MR_DRV_RAID_MAP One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in struct MR_DRV_RAID_MAP and refactor the code accordingly. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy(). Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/109 Link: https://lore.kernel.org/r/1448f387821833726b99f0ce13069ada89164eb5.1660592640.git.gustavoars@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Enhanced-by: Kees Cook <keescook@chromium.org> # Change in struct MR_DRV_RAID_MAP_ALL
2022-08-31scsi: megaraid_sas: Replace one-element array with flexible-array member in ↵Gustavo A. R. Silva
MR_FW_RAID_MAP_DYNAMIC One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in struct MR_FW_RAID_MAP_DYNAMIC. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy(). Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/109 Link: https://lore.kernel.org/r/896476f8fe43cf83b491c6c13f59c9ace780d82c.1660592640.git.gustavoars@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: megaraid_sas: Replace one-element array with flexible-array member in ↵Gustavo A. R. Silva
MR_FW_RAID_MAP One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in struct MR_DRV_RAID_MAP and refactor the the rest of the code accordingly. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy(). Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/109 Link: https://lore.kernel.org/r/4495ce170c8ef088a10f1abe0e7c227368f43242.1660592640.git.gustavoars@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Enhanced-by: Kees Cook <keescook@chromium.org> # Change in struct MR_FW_RAID_MAP_ALL
2022-08-31scsi: qla2xxx: Avoid flush_scheduled_work() usageTetsuo Handa
Although qla2xxx driver is calling schedule_{,delayed}_work() from 10 locations, I assume that flush_scheduled_work() from qlt_stop_phase1() needs to flush only works scheduled by qlt_sched_sess_work(), for this loop continues while "struct qla_tgt"->sess_works_list is not empty. Link: https://lore.kernel.org/r/133c6723-90b6-5c8b-72b4-cc01eeb3a8c0@I-love.SAKURA.ne.jp Tested-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: qla2xxx: Always wait for qlt_sess_work_fn() from qlt_stop_phase1()Tetsuo Handa
Currently qlt_stop_phase1() may fail to call flush_scheduled_work(), for list_empty() may return true as soon as qlt_sess_work_fn() called list_del(). In order to close this race window, check list_empty() after calling flush_scheduled_work(). If this patch causes problems, please check commit c4f135d64382 ("workqueue: Wrap flush_workqueue() using a macro"). We are on the way to remove all flush_scheduled_work() calls from the kernel. Link: https://lore.kernel.org/r/7f24469d-9e39-3398-d851-329b54c0b923@I-love.SAKURA.ne.jp Tested-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: qla2xxx: Remove unused qlt_tmr_work()Tetsuo Handa
qlt_tmr_work() is no longer used since commit fb35265b12bb ("scsi: qla2xxx: Remove session creation redundant code"). Link: https://lore.kernel.org/r/a0e53c70-b801-adf5-0549-b2b1e421a819@I-love.SAKURA.ne.jp Tested-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: qla2xxx: Remove unused del_sess_list fieldTetsuo Handa
"struct qla_tgt"->del_sess_list is no longer used since commit 726b85487067 ("qla2xxx: Add framework for async fabric discovery"). Link: https://lore.kernel.org/r/0c335e86-5624-b599-5137-f1377419fb0c@I-love.SAKURA.ne.jp Tested-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: lpfc: Copyright updates for 14.2.0.6 patchesJames Smart
Update copyrights to 2022 for files modified in the 14.2.0.6 patch set. Link: https://lore.kernel.org/r/20220819011736.14141-8-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>
2022-08-31scsi: lpfc: Update lpfc version to 14.2.0.6James Smart
Update lpfc version to 14.2.0.6. Link: https://lore.kernel.org/r/20220819011736.14141-7-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>
2022-08-31scsi: lpfc: Remove SANDiags related codeJames Smart
The SANDiags feature is unused, and related code is removed. Link: https://lore.kernel.org/r/20220819011736.14141-6-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>
2022-08-31scsi: lpfc: Add warning notification period to CMF_SYNC_WQEJames Smart
Add capability to specify warning notification period to help firmware adjust to congestion accordingly. Link: https://lore.kernel.org/r/20220819011736.14141-5-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>
2022-08-31scsi: lpfc: Rework MIB Rx Monitor debug info logicJames Smart
The kernel test robot reported the following sparse warning: arch/arm64/include/asm/cmpxchg.h:88:1: sparse: sparse: cast truncates bits from constant value (369 becomes 69) On arm64, atomic_xchg only works on 8-bit byte fields. Thus, the macro usage of LPFC_RXMONITOR_TABLE_IN_USE can be unintentionally truncated leading to all logic involving the LPFC_RXMONITOR_TABLE_IN_USE macro to not work properly. Replace the Rx Table atomic_t indexing logic with a new lpfc_rx_info_monitor structure that holds a circular ring buffer. For locking semantics, a spinlock_t is used. Link: https://lore.kernel.org/r/20220819011736.14141-4-jsmart2021@gmail.com Fixes: 17b27ac59224 ("scsi: lpfc: Add rx monitoring statistics") Cc: <stable@vger.kernel.org> # v5.15+ 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>
2022-08-31scsi: lpfc: Fix null ndlp ptr dereference in abnormal exit path for GFT_IDJames Smart
An error case exit from lpfc_cmpl_ct_cmd_gft_id() results in a call to lpfc_nlp_put() with a null pointer to a nodelist structure. Changed lpfc_cmpl_ct_cmd_gft_id() to initialize nodelist pointer upon entry. Link: https://lore.kernel.org/r/20220819011736.14141-3-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>
2022-08-31scsi: lpfc: Fix unsolicited FLOGI receive handling during PT2PT discoveryJames Smart
During a stress offline/online test in PT2PT topology, target rediscovery can fail with a specific target vendor array. When the HBA transitions to online mode it is possible to receive an unsolicited FLOGI before processing the Link Up event. The received FLOGI will set the defer_flogi_acc_flag, which instructs the driver to wait until it transmits its own FLOGI before ACKing the received FLOGI. In this failure scenario, the link up processing clears the set defer_flogi_acc_flag before we have sent out the FLOGI. As the target has the higher WWPN and is responsible for sending the PLOGI, the target is stuck waiting for its FLOGI_ACC that the driver will never send. Remove the clear of defer_flogi_acc_flag from Link Up event processing. In this stress test case, the defer_flogi_acc_flag is cleared during the Link Down event processing anyways. Link: https://lore.kernel.org/r/20220819011736.14141-2-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>
2022-08-31scsi: st: Remove redundant variable pointer stpColin Ian King
Variable stp is assigned a value that is never read, the assignment and the variable stp are redundant and can be removed. Cleans up clang scan build warning: drivers/scsi/st.c:4253:7: warning: Although the value stored to 'stp' is used in the enclosing expression, the value is never actually read from 'stp' [deadcode.DeadStores] Link: https://lore.kernel.org/r/20220805115652.2340991-1-colin.i.king@gmail.com Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: megaraid: Remove redundant assignment to variable mfiStatusColin Ian King
The variable mfiStatus is assigned a value but it is never read. The assignment is redundant and can be removed. Also remove { } as the return statement does not need to be in its own code block. Cleans up clang scan build warning: drivers/scsi/megaraid/megaraid_sas_base.c:4026:7: warning: Although the value stored to 'mfiStatus' is used in the enclosing expression, the value is never actually read from 'mfiStatus' [deadcode.DeadStores] Link: https://lore.kernel.org/r/20220805115042.2340400-1-colin.i.king@gmail.com Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: initio: Remove redundant assignment to pointer scbColin Ian King
The variable scb is assigned a value but it is never read. The assignment is redundant and can be removed. Also replace the != NULL check with the more usual non-null check idiom. Cleans up clang scan build warning: drivers/scsi/initio.c:1169:9: warning: Although the value stored to 'scb' is used in the enclosing expression, the value is never actually read from 'scb' [deadcode.DeadStores] Link: https://lore.kernel.org/r/20220805114100.2339637-1-colin.i.king@gmail.com Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: mpt3sas: Disable MPI2_FUNCTION_FW_DOWNLOAD for ATTO devicesBradley Grove
Disable firmware download for ATTO devices where it is not supported. Link: https://lore.kernel.org/r/20220805174609.14830-2-bgrove@attotech.com Co-developed-by: Rob Crispo <rcrispo@attotech.com> Signed-off-by: Rob Crispo <rcrispo@attotech.com> Signed-off-by: Bradley Grove <bgrove@attotech.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: mpt3sas: Add support for ATTO ExpressSAS H12xx GT devicesBradley Grove
Add ATTO's PCI IDs and modify the driver to handle the unique NVRAM structure used by ATTO's devices. Link: https://lore.kernel.org/r/20220805174609.14830-1-bgrove@attotech.com Co-developed-by: Rob Crispo <rcrispo@attotech.com> Signed-off-by: Rob Crispo <rcrispo@attotech.com> Signed-off-by: Bradley Grove <bgrove@attotech.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: mpi3mr: Block I/Os while refreshing target dev objectsSreekanth Reddy
Block the I/Os on the target devices until corresponding target device's target dev objects are refreshed as part of post controller reset operation. Link: https://lore.kernel.org/r/20220804131226.16653-16-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: mpi3mr: Refresh SAS ports during soft resetSreekanth Reddy
Update the host's SAS ports if there is change in port id or phys. If the port id is changed, then the driver updates it. If some phys are enabled/disabled during reset, then driver updates them in STL. Check for the responding expander devices and update the device handle if it got changed. Register the expander with STL if it got added during reset and unregister the expander device if it got removed during reset. [mkp: include fix for zeroday warning] Link: https://lore.kernel.org/r/20220804131226.16653-15-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Support SAS transport class callbacksSreekanth Reddy
Add support for the following SAS transport class callbacks: - get_linkerrors - get_enclosure_identifier - get_bay_identifier - phy_reset - phy_enable - set_phy_speed - smp_handler Link: https://lore.kernel.org/r/20220804131226.16653-14-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add framework to issue MPT transport cmdsSreekanth Reddy
Add framework to issue MPT transport commands to controllers. Also issue the MPT transport commands to get the manufacturing info of SAS expander device. Link: https://lore.kernel.org/r/20220804131226.16653-13-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add SAS SATA end devices to STLSreekanth Reddy
Register/unregister the SAS, SATA devices to SCSI Transport Layer(STL) whenever the corresponding device is added/removed from topology. Link: https://lore.kernel.org/r/20220804131226.16653-12-sreekanth.reddy@broadcom.com Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Get target object based on rphySreekanth Reddy
When device is registered with the STL then get the corresponding device's target object using the rphy in below callback functions: - mpi3mr_target_alloc() - mpi3mr_slave_alloc() - mpi3mr_slave_configure() - mpi3mr_slave_destroy() Link: https://lore.kernel.org/r/20220804131226.16653-11-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add expander devices to STLSreekanth Reddy
Register/unregister the expander devices to SCSI Transport Layer(STL) whenever the corresponding expander is added/removed from topology. Link: https://lore.kernel.org/r/20220804131226.16653-10-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Enable STL on HBAs where multipath is disabledSreekanth Reddy
Register the SAS, SATA devices to SCSI Transport Layer (STL) only if multipath capability is disabled in the controller's firmware. Link: https://lore.kernel.org/r/20220804131226.16653-9-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add helper functions to manage device's portSreekanth Reddy
Add the following helper functions: - Update the host phys with STL - Remove the device's SAS port with STL Link: https://lore.kernel.org/r/20220804131226.16653-8-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add helper functions to retrieve device objectsSreekanth Reddy
Add the following helper functions: - Get the device's sas address by reading corresponding device's Device page0 - Get the expander object from expander list based on expander's handle - Get the target device object from target device list based on device's sas address - Get the expander device object from expander list based on expanders's sas address - Get hba port object from hba port table list based on port's port id Link: https://lore.kernel.org/r/20220804131226.16653-7-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add framework to add phys to STLSreekanth Reddy
Add framework to register and unregister the host and expander phys with SCSI Transport Layer (STL). Link: https://lore.kernel.org/r/20220804131226.16653-6-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Enable Enclosure device add eventSreekanth Reddy
Enable and process the Enclosure device add event. Link: https://lore.kernel.org/r/20220804131226.16653-5-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add helper functions to retrieve config pagesSreekanth Reddy
Add helper functions to retrieve below controller's config pages: - SAS IOUnit Page0 - SAS IOUnit Page1 - Driver Page1 - Device Page0 - SAS Phy Page0 - SAS Phy Page1 - SAS Expander Page0 - SAS Expander Page1 - Enclosure Page0 Also add the helper function to set SAS IOUnit Page1. Link: https://lore.kernel.org/r/20220804131226.16653-4-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add framework to issue config requestsSreekanth Reddy
Add framework to issue config requests commands to controller firmware. Link: https://lore.kernel.org/r/20220804131226.16653-3-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: mpi3mr: Add config and transport related debug flagsSreekanth Reddy
Add config and transport request related error & info debug flags and functions. Link: https://lore.kernel.org/r/20220804131226.16653-2-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: sd: Revert "Rework asynchronous resume support"Bart Van Assche
Although commit 88f1669019bd ("scsi: sd: Rework asynchronous resume support") eliminates a delay for some ATA disks after resume, it causes resume of ATA disks to fail on other setups. See also: * "Resume process hangs for 5-6 seconds starting sometime in 5.16" (https://bugzilla.kernel.org/show_bug.cgi?id=215880). * Geert's regression report (https://lore.kernel.org/linux-scsi/alpine.DEB.2.22.394.2207191125130.1006766@ramsan.of.borg/). This is what I understand about this issue: * During resume, ata_port_pm_resume() starts the SCSI error handler. This changes the SCSI host state into SHOST_RECOVERY and causes scsi_queue_rq() to return BLK_STS_RESOURCE. * sd_resume() calls sd_start_stop_device() for ATA devices. That function in turn calls sd_submit_start() which tries to submit a START STOP UNIT command. That command can only be submitted after the SCSI error handler has changed the SCSI host state back to SHOST_RUNNING. * The SCSI error handler runs on its own thread and calls schedule_work(&(ap->scsi_rescan_task)). That causes ata_scsi_dev_rescan() to be called from the context of a kernel workqueue. That call hangs in blk_mq_get_tag(). I'm not sure why - maybe because all available tags have been allocated by sd_submit_start() calls (this is a guess). Link: https://lore.kernel.org/r/20220816172638.538734-1-bvanassche@acm.org Fixes: 88f1669019bd ("scsi: sd: Rework asynchronous resume support") Cc: Damien Le Moal <damien.lemoal@opensource.wdc.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: gzhqyz@gmail.com Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Reported-by: gzhqyz@gmail.com Reported-and-tested-by: Vlastimil Babka <vbabka@suse.cz> Tested-by: John Garry <john.garry@huawei.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22block: Change the return type of blk_mq_map_queues() into voidBart Van Assche
Since blk_mq_map_queues() and the .map_queues() callbacks always return 0, change their return type into void. Most callers ignore the returned value anyway. Cc: Christoph Hellwig <hch@lst.de> Cc: Jason Wang <jasowang@redhat.com> Cc: Keith Busch <kbusch@kernel.org> Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: Doug Gilbert <dgilbert@interlog.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: John Garry <john.garry@huawei.com> Acked-by: Md Haris Iqbal <haris.iqbal@ionos.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Link: https://lore.kernel.org/r/20220815170043.19489-3-bvanassche@acm.org [axboe: fold in fix from Bart] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-08-19scsi: core: Fix passthrough retry counter handlingMike Christie
Passthrough users will set the scsi_cmnd->allowed value and were expecting up to $allowed retries. The problem is that before: commit 6aded12b10e0 ("scsi: core: Remove struct scsi_request") we used to set the retries on the scsi_request then copy them over to scsi_cmnd->allowed in scsi_setup_scsi_cmnd. With that patch we now set scsi_cmnd->allowed to 0 in scsi_prepare_cmd and overwrite what the passthrough user set. This moves the allowed initialization to after the blk_rq_is_passthrough() check so it's only done for the non-passthrough path where the ULD init_command will normally set an allowed value it prefers. Link: https://lore.kernel.org/r/20220812011206.9157-1-michael.christie@oracle.com Fixes: 6aded12b10e0 ("scsi: core: Remove struct scsi_request") Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-19Merge branch '5.20/scsi-queue' into 6.0/scsi-fixesMartin K. Petersen
Include commits that weren't submitted during the 6.0 merge window. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-13Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull more SCSI updates from James Bottomley: "Mostly small bug fixes and trivial updates. The major new core update is a change to the way device, target and host reference counting is done to try to make it more robust (this change has soaked for a while to try to winkle out any bugs)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: pm8001: Fix typo 'the the' in comment scsi: megaraid_sas: Remove redundant variable cmd_type scsi: FlashPoint: Remove redundant variable bm_int_st scsi: zfcp: Fix missing auto port scan and thus missing target ports scsi: core: Call blk_mq_free_tag_set() earlier scsi: core: Simplify LLD module reference counting scsi: core: Make sure that hosts outlive targets scsi: core: Make sure that targets outlive devices scsi: ufs: ufs-pci: Correct check for RESET DSM scsi: target: core: De-RCU of se_lun and se_lun acl scsi: target: core: Fix race during ACL removal scsi: ufs: core: Correct ufshcd_shutdown() flow scsi: ufs: core: Increase the maximum data buffer size scsi: lpfc: Check the return value of alloc_workqueue()
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