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2021-12-07scsi: lpfc: Change return code on I/Os received during link bounceJames Smart2-4/+6
During heavy I/O testing with issue_lip to bounce the link, occasionally I/O is terminated with status 3 result 9, which means the RPI is suspended. The I/O is completed and this type of error will result in immediate retry by the SCSI layer. The retry count expires and the I/O fails and returns error to the application. To avoid these quick retry/retries exhausted scenarios change the return code given to the midlayer to DID_REQUEUE rather than DID_ERROR. This gets them retried, and eventually succeed when the link recovers. Link: https://lore.kernel.org/r/20211204002644.116455-3-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>
2021-12-07scsi: lpfc: Fix leaked lpfc_dmabuf mbox allocations with NPIVJames Smart3-3/+17
During rmmod testing, messages appeared indicating lpfc_mbuf_pool entries were still busy. This situation was only seen doing rmmod after at least 1 vport (NPIV) instance was created and destroyed. The number of messages scaled with the number of vports created. When a vport is created, it can receive a PLOGI from another initiator Nport. When this happens, the driver prepares to ack the PLOGI and prepares an RPI for registration (via mbx cmd) which includes an mbuf allocation. During the unsolicited PLOGI processing and after the RPI preparation, the driver recognizes it is one of the vport instances and decides to reject the PLOGI. During the LS_RJT preparation for the PLOGI, the mailbox struct allocated for RPI registration is freed, but the mbuf that was also allocated is not released. Fix by freeing the mbuf with the mailbox struct in the LS_RJT path. As part of the code review to figure the issue out a couple of other areas where found that also would not have released the mbuf. Those are cleaned up as well. Link: https://lore.kernel.org/r/20211204002644.116455-2-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>
2021-12-07scsi: ufs: Implement polling supportBart Van Assche1-18/+67
The time spent in io_schedule() and also the interrupt latency are significant when submitting direct I/O to a UFS device. Hence this patch that implements polling support. User space software can enable polling by passing the RWF_HIPRI flag to the preadv2() system call or the IORING_SETUP_IOPOLL flag to the io_uring interface. Although the block layer supports to partition the tag space for interrupt-based completions (HCTX_TYPE_DEFAULT) purposes and polling (HCTX_TYPE_POLL), the choice has been made to use the same hardware queue for both hctx types because partitioning the tag space would negatively affect performance. On my test setup this patch increases IOPS from 2736 to 22000 (8x) for the following test: for hipri in 0 1; do fio --ioengine=io_uring --iodepth=1 --rw=randread \ --runtime=60 --time_based=1 --direct=1 --name=qd1 \ --filename=/dev/block/sda --ioscheduler=none --gtod_reduce=1 \ --norandommap --hipri=$hipri done Link: https://lore.kernel.org/r/20211203231950.193369-18-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Optimize the command queueing codeBart Van Assche2-10/+24
Remove the clock scaling lock from ufshcd_queuecommand() since it is a performance bottleneck. Instead check the SCSI device budget bitmaps in the code that waits for ongoing ufshcd_queuecommand() calls. A bit is set in sdev->budget_map just before scsi_queue_rq() is called and a bit is cleared from that bitmap if scsi_queue_rq() does not submit the request or after the request has finished. See also the blk_mq_{get,put}_dispatch_budget() calls in the block layer. There is no risk for a livelock since the block layer delays queue reruns if queueing a request fails because the SCSI host has been blocked. Link: https://lore.kernel.org/r/20211203231950.193369-17-bvanassche@acm.org Cc: Asutosh Das (asd) <asutoshd@codeaurora.org> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Stop using the clock scaling lock in the error handlerBart Van Assche1-2/+10
Instead of locking and unlocking the clock scaling lock, surround the command queueing code with an RCU reader lock and call synchronize_rcu(). This patch prepares for removal of the clock scaling lock. Link: https://lore.kernel.org/r/20211203231950.193369-16-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Fix a kernel crash during shutdownBart Van Assche1-5/+10
Fix the following kernel crash: Unable to handle kernel paging request at virtual address ffffffc91e735000 Call trace: __queue_work+0x26c/0x624 queue_work_on+0x6c/0xf0 ufshcd_hold+0x12c/0x210 __ufshcd_wl_suspend+0xc0/0x400 ufshcd_wl_shutdown+0xb8/0xcc device_shutdown+0x184/0x224 kernel_restart+0x4c/0x124 __arm64_sys_reboot+0x194/0x264 el0_svc_common+0xc8/0x1d4 do_el0_svc+0x30/0x8c el0_svc+0x20/0x30 el0_sync_handler+0x84/0xe4 el0_sync+0x1bc/0x1c0 Fix this crash by ungating the clock before destroying the work queue on which clock gating work is queued. Link: https://lore.kernel.org/r/20211203231950.193369-15-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Improve SCSI abort handling furtherBart Van Assche1-0/+12
Release resources when aborting a command. Make sure that aborted commands are completed once by clearing the corresponding tag bit from hba->outstanding_reqs. This patch is an improved version of commit 3ff1f6b6ba6f ("scsi: ufs: core: Improve SCSI abort handling"). Link: https://lore.kernel.org/r/20211203231950.193369-14-bvanassche@acm.org Fixes: 7a3e97b0dc4b ("[SCSI] ufshcd: UFS Host controller driver") Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Introduce ufshcd_release_scsi_cmd()Bart Van Assche1-8/+14
The only functional change in this patch is that scsi_done() is now called after ufshcd_release() and ufshcd_clk_scaling_update_busy() instead of before. The next patch in this series will introduce a call to ufshcd_release_scsi_cmd() in the abort handler. Link: https://lore.kernel.org/r/20211203231950.193369-13-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Remove the 'update_scaling' local variableBart Van Assche1-5/+2
This patch does not change any functionality but makes the next patch in this series easier to read. Link: https://lore.kernel.org/r/20211203231950.193369-12-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Remove hba->cmd_queueBart Van Assche2-12/+1
The previous patch removed all code that uses hba->cmd_queue. Hence also remove hba->cmd_queue itself. Link: https://lore.kernel.org/r/20211203231950.193369-11-bvanassche@acm.org Suggested-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Fix a deadlock in the error handlerBart Van Assche2-39/+16
The following deadlock has been observed on a test setup: - All tags allocated - The SCSI error handler calls ufshcd_eh_host_reset_handler() - ufshcd_eh_host_reset_handler() queues work that calls ufshcd_err_handler() - ufshcd_err_handler() locks up as follows: Workqueue: ufs_eh_wq_0 ufshcd_err_handler.cfi_jt Call trace: __switch_to+0x298/0x5d8 __schedule+0x6cc/0xa94 schedule+0x12c/0x298 blk_mq_get_tag+0x210/0x480 __blk_mq_alloc_request+0x1c8/0x284 blk_get_request+0x74/0x134 ufshcd_exec_dev_cmd+0x68/0x640 ufshcd_verify_dev_init+0x68/0x35c ufshcd_probe_hba+0x12c/0x1cb8 ufshcd_host_reset_and_restore+0x88/0x254 ufshcd_reset_and_restore+0xd0/0x354 ufshcd_err_handler+0x408/0xc58 process_one_work+0x24c/0x66c worker_thread+0x3e8/0xa4c kthread+0x150/0x1b4 ret_from_fork+0x10/0x30 Fix this lockup by making ufshcd_exec_dev_cmd() allocate a reserved request. Link: https://lore.kernel.org/r/20211203231950.193369-10-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Rework ufshcd_change_queue_depth()Bart Van Assche1-5/+1
Prepare for making sdev->host->can_queue less than hba->nutrs. This patch does not change any functionality. Link: https://lore.kernel.org/r/20211203231950.193369-9-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Remove ufshcd_any_tag_in_use()Bart Van Assche1-20/+1
Use hba->outstanding_reqs instead of ufshcd_any_tag_in_use(). This patch prepares for removal of the blk_mq_start_request() call from ufshcd_wait_for_dev_cmd(). blk_mq_tagset_busy_iter() only iterates over started requests. Link: https://lore.kernel.org/r/20211203231950.193369-8-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Fix race conditions related to driver dataBart Van Assche4-5/+7
The driver data pointer must be set before any callbacks are registered that use that pointer. Hence move the initialization of that pointer from after the ufshcd_init() call to inside ufshcd_init(). Link: https://lore.kernel.org/r/20211203231950.193369-7-bvanassche@acm.org Fixes: 3b1d05807a9a ("[SCSI] ufs: Segregate PCI Specific Code") Reported-by: Alexey Dobriyan <adobriyan@gmail.com> Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Remove dead codeBart Van Assche1-6/+1
Commit 7252a3603015 ("scsi: ufs: Avoid busy-waiting by eliminating tag conflicts") guarantees that 'tag' is not in use by any SCSI command. Remove the check that returns early if a conflict occurs. Link: https://lore.kernel.org/r/20211203231950.193369-6-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Acked-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Remove the sdev_rpmb memberBart Van Assche2-7/+6
Since the sdev_rpmb member of struct ufs_hba is only used inside ufshcd_scsi_add_wlus(), convert it into a local variable. Link: https://lore.kernel.org/r/20211203231950.193369-5-bvanassche@acm.org Suggested-by: Jaegeuk Kim <jaegeuk@kernel.org> Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Remove is_rpmb_wlun()Bart Van Assche1-5/+0
Commit edc0596cc04b ("scsi: ufs: core: Stop clearing UNIT ATTENTIONS") removed all callers of is_rpmb_wlun(). Hence also remove the function itself. Link: https://lore.kernel.org/r/20211203231950.193369-4-bvanassche@acm.org Reported-by: kernel test robot <lkp@intel.com> Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: ufs: Rename a function argumentBart Van Assche2-3/+4
The new name makes it clear what the meaning of the function argument is. Link: https://lore.kernel.org/r/20211203231950.193369-3-bvanassche@acm.org Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Keoseong Park <keosung.park@samsung.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Acked-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: core: Fix scsi_device_max_queue_depth()Bart Van Assche1-2/+2
The comment above scsi_device_max_queue_depth() and also the description of commit ca4453213951 ("scsi: core: Make sure sdev->queue_depth is <= max(shost->can_queue, 1024)") contradict the implementation of the function scsi_device_max_queue_depth(). Additionally, the maximum queue depth of a SCSI LUN never exceeds host->can_queue. Fix scsi_device_max_queue_depth() by changing max_t() into min_t(). Link: https://lore.kernel.org/r/20211203231950.193369-2-bvanassche@acm.org Fixes: ca4453213951 ("scsi: core: Make sure sdev->queue_depth is <= max(shost->can_queue, 1024)") Cc: Hannes Reinecke <hare@suse.de> Cc: Sumanesh Samanta <sumanesh.samanta@broadcom.com> Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: mptfusion: Remove redundant variable rColin Ian King1-4/+2
Variable r is being assigned a value that is never read. The assignment is redundant and so is the variable, so remove these. Remove unnecessary the {} braces in the if statement too. Link: https://lore.kernel.org/r/20211205225901.54362-1-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>
2021-12-07scsi: be2iscsi: Remove maintainersSebastian Andrzej Siewior1-2/+0
The email addresses of Subbu Seetharaman <subbu.seetharaman@broadcom.com> Jitendra Bhivare <jitendra.bhivare@broadcom.com> are no longer working. Remove Subbu and Jitendra as maintainers. Link: https://lore.kernel.org/r/20211202201141.cytqe73ish6oa356@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: qla4xxx: Format SYSFS_FLAG_FW_SEL_BOOT as byteFlorian Fainelli1-2/+2
qedi formats SYSFS_FLAG_FW_SEL_BOOT as a byte and the qla4xxx driver does exactly the same thing. Align them for consistency. Link: https://lore.kernel.org/r/20211130203813.12138-3-f.fainelli@gmail.com Suggested-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Manish Rangankar <mrangankar@marvell.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: qedi: Fix SYSFS_FLAG_FW_SEL_BOOT formattingFlorian Fainelli1-3/+2
The format used for formatting SYSFS_FLAG_FW_SEL_BOOT creates the following warning: drivers/scsi/qedi/qedi_main.c:2259:35: warning: format specifies type 'char' but the argument has type 'int' [-Wformat] rc = snprintf(buf, 3, "%hhd\n", SYSFS_FLAG_FW_SEL_BOOT); Fix this to cast the constant as a char since the intention is to print it via sysfs as a byte. Link: https://lore.kernel.org/r/20211130203813.12138-2-f.fainelli@gmail.com Reported-by: kernel test robot <lkp@intel.com> Acked-by: Manish Rangankar <mrangankar@marvell.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: hisi_sas: Use non-atomic bitmap functions when possibleChristophe JAILLET1-2/+2
All uses of the 'hisi_hba->slot_index_tags' bitmap are protected with the 'hisi_hba->lock' spinlock. Prefer the non-atomic '__[set|clear]_bit()' functions to save a few cycles. Link: https://lore.kernel.org/r/8ee33e463523db080e6a2c06f332e47abb69359b.1637961191.git.christophe.jaillet@wanadoo.fr Acked-by: John Garry <john.garry@huawei.com> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: hisi_sas: Remove some useless code in hisi_sas_alloc()Christophe JAILLET1-9/+0
The 'hisi_hba->slot_index_tags' bitmap is allocated with bitmap_zalloc() so it is already cleared. There is no need to clear it another time, one bit at a time. Remove the corresponding useless code. Link: https://lore.kernel.org/r/41c86e7e3e05a13bd586d8ee1b81296140b7a6eb.1637961191.git.christophe.jaillet@wanadoo.fr Acked-by: John Garry <john.garry@huawei.com> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-07scsi: hisi_sas: Use devm_bitmap_zalloc() when applicableChristophe JAILLET1-3/+2
'hisi_hba->slot_index_tags' is a bitmap. Use 'devm_bitmap_zalloc()' to simplify code, improve the semantic, and avoid some open-coded arithmetic in allocator arguments. Link: https://lore.kernel.org/r/4afa3f71e66c941c660627c7f5b0223b51968ebb.1637961191.git.christophe.jaillet@wanadoo.fr Acked-by: John Garry <john.garry@huawei.com> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-03scsi: sd_zbc: Clean up sd_zbc_parse_report() setting of wpNiklas Cassel1-1/+2
Make sd_zbc_parse_report() use if/else when setting the write pointer, instead of setting it unconditionally and then conditionally updating it. Link: https://lore.kernel.org/r/20211201142821.64650-2-Niklas.Cassel@wdc.com Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-03scsi: sd_zbc: Simplify zone full condition checkNiklas Cassel1-2/+1
According to the ZBC (and ZAC) specification, a zone that has Zone Type set to Conventional, must also have its Zone Condition set to "Not Write Pointer". Therefore, a conventional zone will never have Zone Condition set to "Full", which means that we can omit the non-conventional prerequisite from the zone full condition check. Link: https://lore.kernel.org/r/20211201142821.64650-1-Niklas.Cassel@wdc.com Suggested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: Remove superfluous #include <linux/async.h> directivesBart Van Assche7-7/+0
Remove this include directive from code that does not use any functionality from kernel/async.c. Link: https://lore.kernel.org/r/20211129194609.3466071-13-bvanassche@acm.org Reviewed-by: Daejun Park <daejun7.park@samsung.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: pmcraid: Fix a kernel-doc warningBart Van Assche1-1/+0
Fix the following kernel-doc warning: drivers/scsi/pmcraid.c:3317: warning: Excess function parameter 'done' description in 'pmcraid_queuecommand_lck' Link: https://lore.kernel.org/r/20211129194609.3466071-12-bvanassche@acm.org Fixes: af049dfd0b10 ("scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: pm8001: Fix kernel-doc warningsBart Van Assche1-12/+12
Fix the following kernel-doc warnings: drivers/scsi/pm8001/pm8001_ctl.c:900: warning: cannot understand function prototype: 'const char *const mpiStateText[] = ' drivers/scsi/pm8001/pm8001_ctl.c:930: warning: Function parameter or member 'attr' not described in 'ctl_hmi_error_show' drivers/scsi/pm8001/pm8001_ctl.c:951: warning: Function parameter or member 'attr' not described in 'ctl_raae_count_show' drivers/scsi/pm8001/pm8001_ctl.c:972: warning: Function parameter or member 'attr' not described in 'ctl_iop0_count_show' drivers/scsi/pm8001/pm8001_ctl.c:993: warning: Function parameter or member 'attr' not described in 'ctl_iop1_count_show' Link: https://lore.kernel.org/r/20211129194609.3466071-11-bvanassche@acm.org Fixes: 4ddbea1b6f51 ("scsi: pm80xx: Add sysfs attribute to check MPI state") Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: megaraid: Fix a kernel-doc warningBart Van Assche1-1/+0
Fix the following kernel-doc warning: drivers/scsi/megaraid/megaraid_mbox.c:1439: warning: Excess function parameter 'done' description in 'megaraid_queue_command_lck' Link: https://lore.kernel.org/r/20211129194609.3466071-10-bvanassche@acm.org Fixes: af049dfd0b10 ("scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: initio: Fix a kernel-doc warningBart Van Assche1-2/+0
Fix the following kernel-doc warning: drivers/scsi/initio.c:2613: warning: Excess function parameter 'done' description in 'i91u_queuecommand_lck' Link: https://lore.kernel.org/r/20211129194609.3466071-9-bvanassche@acm.org Fixes: af049dfd0b10 ("scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: dc395x: Fix a kernel-doc warningBart Van Assche1-2/+1
Fix the following kernel-doc warning: drivers/scsi/dc395x.c:964: warning: Excess function parameter 'done' description in 'dc395x_queue_command_lck' Link: https://lore.kernel.org/r/20211129194609.3466071-8-bvanassche@acm.org Fixes: af049dfd0b10 ("scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: bfa: Declare 'bfad_im_vport_attrs' staticBart Van Assche1-1/+1
Fix the following kernel-doc warning: 'bfad_im_vport_attrs' is only used in one source file. Hence declare this array static. Link: https://lore.kernel.org/r/20211129194609.3466071-7-bvanassche@acm.org Fixes: e73af234a1a2 ("scsi: bfa: Switch to attribute groups") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: atp870u: Fix a kernel-doc warningBart Van Assche1-1/+0
Fix the following kernel-doc warning: drivers/scsi/atp870u.c:622: warning: Excess function parameter 'done' description in 'atp870u_queuecommand_lck' Link: https://lore.kernel.org/r/20211129194609.3466071-6-bvanassche@acm.org Fixes: af049dfd0b10 ("scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: a100u2w: Fix a kernel-doc warningBart Van Assche1-2/+0
Fix the following kernel-doc warning: drivers/scsi/a100u2w.c:915: warning: Excess function parameter 'done' description in 'inia100_queue_lck' Link: https://lore.kernel.org/r/20211129194609.3466071-5-bvanassche@acm.org Fixes: af049dfd0b10 ("scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: core: Show SCMD_LAST in text formBart Van Assche1-0/+1
The SCSI debugfs code supports showing information about pending commands, including translating SCSI command flags from numeric into text format. Also convert the SCMD_LAST flag from numeric into text form. Link: https://lore.kernel.org/r/20211129194609.3466071-4-bvanassche@acm.org Fixes: 8930a6c20791 ("scsi: core: add support for request batching") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: core: Declare 'scsi_scan_type' staticBart Van Assche1-1/+1
'scsi_scan_type' is only used in one source file. Hence declare it static. Link: https://lore.kernel.org/r/20211129194609.3466071-3-bvanassche@acm.org Fixes: a19a93e4c6a9 ("scsi: core: pm: Rely on the device driver core for async power management") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: core: Suppress a kernel-doc warningBart Van Assche1-1/+1
Suppress the following kernel-doc warning: drivers/scsi/scsi_scan.c:129: warning: Function parameter or member 'dev' not described in 'scsi_enable_async_suspend' Link: https://lore.kernel.org/r/20211129194609.3466071-2-bvanassche@acm.org Fixes: a19a93e4c6a9 ("scsi: core: pm: Rely on the device driver core for async power management") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: qedi: Remove set but unused 'page' variableFlorian Fainelli1-3/+0
The variable 'page' is set but never used throughout qedi_alloc_bdq(). Therefore remove it. Link: https://lore.kernel.org/r/20211126201708.27140-2-f.fainelli@gmail.com Reported-by: kernel test robot <lkp@intel.com> Acked-by: Manish Rangankar <mrangankar@marvell.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-30scsi: ufs: Let devices remain runtime suspended during system suspendAdrian Hunter3-6/+58
If the UFS Device WLUN is runtime suspended and is in the same power mode, link state, and b_rpm_dev_flush_capable (BKOP or WB buffer flush etc) state, then it can remain runtime suspended instead of being runtime resumed and then system suspended. The following patch has cleared the way for that to happen: scsi: core: pm: Only runtime resume if necessary So amend the logic accordingly. Note, the ufs-hisi driver uses different RPM and SPM, but it is made explicit by a new parameter to suspend prepare. Link: https://lore.kernel.org/r/20211027130614.406985-2-adrian.hunter@intel.com Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-19scsi: ufs: Fix double space in SCSI_UFS_HWMON descriptionGeert Uytterhoeven1-1/+1
There's no reason to have a double space between "UFS" and "Temperature", hence drop it. Link: https://lore.kernel.org/r/20211106164741.1571206-1-geert@linux-m68k.org Fixes: e88e2d32200a ("scsi: ufs: core: Probe for temperature notification support") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-19scsi: ufs: Wrap Universal Flash Storage drivers in SCSI_UFSHCDGeert Uytterhoeven1-6/+7
The build only descends into drivers/scsi/ufs/ if SCSI_UFSHCD is enabled. Hence all later config symbols should depend on SCSI_UFSHCD to prevent asking the user about config symbols for driver code that won't be built anyway. Unfortunately not all symbols have that dependency. Fix this by wrapping them all into a big if/endif block. Remove the now superfluous explicit dependencies on SCSI_UFSHCD from all symbols that already had it. Link: https://lore.kernel.org/r/20211106164650.1571068-1-geert@linux-m68k.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-19scsi: pm80xx: Add pm80xx_mpi_build_cmd() tracepointChangyuan Lyu2-0/+33
pm8001_mpi_build_cmd() prepares and sends all commands to a controller. Having pm80xx_mpi_build_cmd tracepoint can help us with latency issues. this patch depends on patch "scsi: pm80xx: Add tracepoints". Link: https://lore.kernel.org/r/20211115215750.131696-3-changyuanl@google.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Co-developed-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Changyuan Lyu <changyuanl@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-19scsi: pm80xx: Add tracepointsChangyuan Lyu5-2/+123
Tracepoints for tracking controller and ATA commands issued and completed. Link: https://lore.kernel.org/r/20211115215750.131696-2-changyuanl@google.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Co-developed-by: Akshat Jain <akshatzen@google.com> Signed-off-by: Akshat Jain <akshatzen@google.com> Signed-off-by: Changyuan Lyu <changyuanl@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-19scsi: pm80xx: Use bitmap_zalloc() for tags bitmap allocationIgor Pylypiv1-2/+2
We used to allocate X bytes while we only need X bits. Link: https://lore.kernel.org/r/20211101232825.2350233-5-ipylypiv@google.com Reviewed-by: Vishakha Channapattan <vishakhavc@google.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-19scsi: pm80xx: Update WARN_ON check in pm8001_mpi_build_cmd()Igor Pylypiv1-1/+3
Starting from commit 05c6c029a44d ("scsi: pm80xx: Increase number of supported queues") driver initializes only max_q_num queues. Do not use an invalid queue if the WARN_ON condition is true. Link: https://lore.kernel.org/r/20211101232825.2350233-4-ipylypiv@google.com Fixes: 7640e1eb8c5d ("scsi: pm80xx: Make mpi_build_cmd locking consistent") Reviewed-by: Vishakha Channapattan <vishakhavc@google.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-19scsi: pm80xx: Do not check the address-of value for NULLIgor Pylypiv2-41/+12
Address-of operator cannot return NULL. Link: https://lore.kernel.org/r/20211101232825.2350233-3-ipylypiv@google.com Reviewed-by: Vishakha Channapattan <vishakhavc@google.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-19scsi: pm80xx: Apply byte mask for phy ID in mpi_phy_start_resp()Igor Pylypiv1-1/+1
Phy ID is located in the least significant byte of the 4-byte field. mpi_phy_stop_resp() already applies such mask. Link: https://lore.kernel.org/r/20211101232825.2350233-2-ipylypiv@google.com Reviewed-by: Vishakha Channapattan <vishakhavc@google.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-01 16:33:59 +0300