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2022-10-07Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds7-55/+377
Pull SCSI updates from James Bottomley: "Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr, mpt3sas, target). The biggest change (from my biased viewpoint) being that the mpi3mr now attached to the SAS transport class, making it the first fusion type device to do so. Beyond the usual bug fixing and security class reworks, there aren't a huge number of core changes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (141 commits) scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() scsi: mpi3mr: Remove unnecessary cast scsi: stex: Properly zero out the passthrough command structure scsi: mpi3mr: Update driver version to 8.2.0.3.0 scsi: mpi3mr: Fix scheduling while atomic type bug scsi: mpi3mr: Scan the devices during resume time scsi: mpi3mr: Free enclosure objects during driver unload scsi: mpi3mr: Handle 0xF003 Fault Code scsi: mpi3mr: Graceful handling of surprise removal of PCIe HBA scsi: mpi3mr: Schedule IRQ kthreads only on non-RT kernels scsi: mpi3mr: Support new power management framework scsi: mpi3mr: Update mpi3 header files scsi: mpt3sas: Revert "scsi: mpt3sas: Fix ioc->base_readl() use" scsi: mpt3sas: Revert "scsi: mpt3sas: Fix writel() use" scsi: wd33c93: Remove dead code related to the long-gone config WD33C93_PIO scsi: core: Add I/O timeout count for SCSI device scsi: qedf: Populate sysfs attributes for vport scsi: pm8001: Replace one-element array with flexible-array member scsi: 3w-xxxx: Replace one-element array with flexible-array member scsi: hptiop: Replace one-element array with flexible-array member in struct hpt_iop_request_ioctl_command() ...
2022-09-30block: change request end_io handler to pass back a return valueJens Axboe1-2/+6
Everything is just converted to returning RQ_END_IO_NONE, and there should be no functional changes with this patch. In preparation for allowing the end_io handler to pass ownership back to the block layer, rather than retain ownership of the request. Reviewed-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-30Merge branch 'for-6.1/block' into for-6.1/passthroughJens Axboe1-6/+3
* for-6.1/block: (162 commits) sbitmap: fix lockup while swapping block: add rationale for not using blk_mq_plug() when applicable block: adapt blk_mq_plug() to not plug for writes that require a zone lock s390/dasd: use blk_mq_alloc_disk blk-cgroup: don't update the blkg lookup hint in blkg_conf_prep nvmet: don't look at the request_queue in nvmet_bdev_set_limits nvmet: don't look at the request_queue in nvmet_bdev_zone_mgmt_emulate_all blk-mq: use quiesced elevator switch when reinitializing queues block: replace blk_queue_nowait with bdev_nowait nvme: remove nvme_ctrl_init_connect_q nvme-loop: use the tagset alloc/free helpers nvme-loop: store the generic nvme_ctrl in set->driver_data nvme-loop: initialize sqsize later nvme-fc: use the tagset alloc/free helpers nvme-fc: store the generic nvme_ctrl in set->driver_data nvme-fc: keep ctrl->sqsize in sync with opts->queue_size nvme-rdma: use the tagset alloc/free helpers nvme-rdma: store the generic nvme_ctrl in set->driver_data nvme-tcp: use the tagset alloc/free helpers nvme-tcp: store the generic nvme_ctrl in set->driver_data ... Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-25scsi: ufs: core: Remove redundant function definitions from ufshcd.hArthur Simchaev1-0/+5
Remove Query-Request API function declarations from include/ufs/ufshcd.h and move them to the ufs core private header. Link: https://lore.kernel.org/r/1663761485-2532-1-git-send-email-Arthur.Simchaev@wdc.com Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Arthur Simchaev <Arthur.Simchaev@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-06scsi: ufs: core: Print UFSHCD capabilities in controller's sysfs nodeDaniil Lunev1-0/+35
Userspace may want to manually control when the data should go into WriteBooster buffer. The control happens via "wb_on" node, but presently, there is no simple way to check if WriteBooster is supported and enabled. Expose the Write Booster and Clock Scaling capabilities to be able to determine if the Write Booster is available and if its manual control is blocked by Clock Scaling mechanism. Link: https://lore.kernel.org/r/20220829081845.v8.1.Ibf9efc9be50783eeee55befa2270b7d38552354c@changeid Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Daniil Lunev <dlunev@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: wb: Modify messagesJinyoung Choi2-13/+12
Modify messages to fit the format of others. Link: https://lore.kernel.org/r/20220804075519epcms2p148b6ae956b172925b26304b50d6a0da9@epcms2p1 Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: wb: Introduce ufshcd_is_wb_buf_flush_allowed()Jinyoung Choi3-4/+10
The explicit flushing should check the following: - UFSHCD_CAP_WB_EN - UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL Add helper to improve readability. Link: https://lore.kernel.org/r/20220804075444epcms2p4a0520880262281f02be65ce0fe50602d@epcms2p4 Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Acked-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: wb: Add explicit flush sysfs attributeJinyoung Choi2-4/+51
There is the following quirk to bypass "WB Flush" in Write Booster. - UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL If this quirk is not set, there is no knob that can control "WB Flush". There are three flags that control Write Booster Feature: 1. WB ON/OFF 2. WB Hibern Flush ON/OFF (implicitly) 3. WB Flush ON/OFF (explicit) The sysfs attribute that controls the WB was implemented. (1) In the case of "Hibern Flush", it is always good to turn on. Control may not be required. (2) Finally, "Flush" may be necessary because the Auto-Hibern8 is not supported in a specific environment. So the sysfs attribute that controls this is necessary. (3) Link: https://lore.kernel.org/r/20220804075354epcms2p8c21c894b4e28840c5fc651875b7f435f@epcms2p8 Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: wb: Change function name and parameter namesJinyoung Choi1-13/+17
Change the parameter names of ufshcd_wb_toggle_flush_during_h8() to match the other toggle functions. Link: https://lore.kernel.org/r/20220804075058epcms2p550c578d743fe0a94888b3d71cc9076d4@epcms2p5 Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: wb: Change wb_enabled condition testJinyoung Choi1-4/+2
Change to improve readability. Link: https://lore.kernel.org/r/20220804074928epcms2p86582693a39597501b491400a28543a92@epcms2p8 Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: core: Allow host driver to disable wb toggling during clock scalingPeter Wang3-5/+8
Mediatek UFS does not want to toggle write booster during clock scaling. Permit host driver to disable wb toggling during clock scaling. Introduce a flag UFSHCD_CAP_WB_WITH_CLK_SCALING to decouple WB and clock scaling. UFSHCD_CAP_WB_WITH_CLK_SCALING is only valid when UFSHCD_CAP_CLK_SCALING is set. Just like UFSHCD_CAP_HIBERN8_WITH_CLK_GATING is valid only when UFSHCD_CAP_CLK_GATING set. Set UFSHCD_CAP_WB_WITH_CLK_SCALING for qcom to compatible legacy design at the same time. Link: https://lore.kernel.org/r/20220804025422.18803-1-peter.wang@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: core: Use local_clock() for debugging timestampsDaniil Lunev1-8/+12
CLOCK_MONOTONIC is not advanced when the system is in suspend. This becomes problematic when debugging issues related to suspend-resume: the timestamps printed by ufshcd_print_trs can not be correlated with dmesg entries, which are timestamped with local_clock(). Change the used clock to local_clock() for the informational timestamp variables and adds mirroring *_local_clock instances for variables used in subsequent derevations (to not change the semantics of those derevations). Link: https://lore.kernel.org/r/20220804065019.v5.1.I699244ea7efbd326a34a6dfd9b5a31e78400cf68@changeid Acked-by: Stanley Chu <stanley.chu@mediatek.com> Acked-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Daniil Lunev <dlunev@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: ufs-mediatek: Support clk-scaling to optimize power consumptionPo-Wen Kao3-2/+153
Provide clk-scaling feature in MediaTek UFS platforms. MediaTek platform supports clk-scaling by switching parent clock mux of UFSHCI main clocks: ufs_sel. The driver needs to prevent changing the rate of ufs_sel because its parent PLL clock may be shared between multiple IPs. In order to achieve this goal, the maximum and minimum clock rates of ufs_sel defined in dts should match the rate of "ufs_sel_max_src" and "ufs_sel_min_src" respectively. Link: https://lore.kernel.org/r/20220802235437.4547-6-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: ufs-mediatek: Fix performance scalingPeter Wang1-4/+14
If clk-scaling is enabled, performance scaling can be bound to the decision of clk-scaling to avoid unnecessary boosting. In addition, fix missing initialization of pm-qos request. Link: https://lore.kernel.org/r/20220802235437.4547-5-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: ufs-mediatek: Dump more registersPeter Wang1-2/+5
Dump more proprietary UFSHCI status registers for easier issue breakdown. Link: https://lore.kernel.org/r/20220802235437.4547-4-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: ufs-mediatek: Provide detailed description for UIC errorsStanley Chu1-0/+58
Provide detailed description in logs for UIC errors for easier issue breakdown. Link: https://lore.kernel.org/r/20220802235437.4547-3-stanley.chu@mediatek.com Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-22scsi: ufs: ufs-mediatek: Remove redundant header filesStanley Chu1-1/+0
Remove redundant #include of header file <linux/sched/clock.h>. Link: https://lore.kernel.org/r/20220802235437.4547-2-stanley.chu@mediatek.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> 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 Assche1-6/+3
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: ufs: core: Reduce the power mode change timeoutBart Van Assche1-1/+8
The current power mode change timeout (180 s) is so large that it can cause a watchdog timer to fire. Reduce the power mode change timeout to 10 seconds. Link: https://lore.kernel.org/r/20220811234401.1957911-1-bvanassche@acm.org Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-19Merge branch '5.20/scsi-queue' into 6.0/scsi-fixesMartin K. Petersen1-1/+1
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 Torvalds2-9/+15
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()
2022-08-11scsi: ufs: host: ufs-exynos: Make fsd_ufs_drvs staticAlim Akhtar1-1/+1
struct fsd_ufs_drvs is not used outside this file, so make it static. This fixes sparse warning: drivers/ufs/host/ufs-exynos.c:1721:28: sparse: sparse: symbol 'fsd_ufs_drvs' was not declared. Should it be static? Link: https://lore.kernel.org/r/20220811161053.54081-1-alim.akhtar@samsung.com Fixes: 216f74e8059a ("scsi: ufs: host: ufs-exynos: Add support for FSD UFS HCI") Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-04Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds13-136/+1007
Pull SCSI updates from James Bottomley: "Updates to the usual drivers (ufs, qla2xx, target, lpfc, smartpqi, mpi3mr). The main driver change that might cause issues on down the road is the conversion of some of our oldest surviving drivers to the DMA API (should only affect m68k). The only major core change is the rework of async resume; the rest are either completely trivial or for updating deprecated APIs" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits) scsi: target: Remove XDWRITEREAD emulated support scsi: megaraid: Remove the static variable initialisation scsi: ch: Do not initialise statics to 0 scsi: ufs: core: Fix spelling mistake "Cannnot" -> "Cannot" scsi: target: iscsi: Do not require target authentication scsi: target: iscsi: Allow AuthMethod=None scsi: target: iscsi: Support base64 in CHAP scsi: target: iscsi: Add support for extended CDB AHS scsi: ufs: dt-bindings: Add SC8280XP binding scsi: target: iscsi: Fix clang -Wformat warnings scsi: ufs: core: Read device property for ref clock scsi: libsas: Resume SAS host for phy reset or enable via sysfs scsi: hisi_sas: Modify v3 HW SATA completion error processing scsi: hisi_sas: Relocate DMA unmap of SMP task scsi: hisi_sas: Remove unnecessary variable to hold DMA map elements scsi: hisi_sas: Call hisi_sas_slave_configure() from slave_configure_v3_hw() scsi: mpi3mr: Delete a stray tab scsi: mpi3mr: Unlock on error path scsi: mpi3mr: Reduce VD queue depth on detecting throttling scsi: mpi3mr: Resource Based Metering ...
2022-08-02Merge tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-blockLinus Torvalds2-6/+5
Pull block updates from Jens Axboe: - Improve the type checking of request flags (Bart) - Ensure queue mapping for a single queues always picks the right queue (Bart) - Sanitize the io priority handling (Jan) - rq-qos race fix (Jinke) - Reserved tags handling improvements (John) - Separate memory alignment from file/disk offset aligment for O_DIRECT (Keith) - Add new ublk driver, userspace block driver using io_uring for communication with the userspace backend (Ming) - Use try_cmpxchg() to cleanup the code in various spots (Uros) - Finally remove bdevname() (Christoph) - Clean up the zoned device handling (Christoph) - Clean up independent access range support (Christoph) - Clean up and improve block sysfs handling (Christoph) - Clean up and improve teardown of block devices. This turns the usual two step process into something that is simpler to implement and handle in block drivers (Christoph) - Clean up chunk size handling (Christoph) - Misc cleanups and fixes (Bart, Bo, Dan, GuoYong, Jason, Keith, Liu, Ming, Sebastian, Yang, Ying) * tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block: (178 commits) ublk_drv: fix double shift bug ublk_drv: make sure that correct flags(features) returned to userspace ublk_drv: fix error handling of ublk_add_dev ublk_drv: fix lockdep warning block: remove __blk_get_queue block: call blk_mq_exit_queue from disk_release for never added disks blk-mq: fix error handling in __blk_mq_alloc_disk ublk: defer disk allocation ublk: rewrite ublk_ctrl_get_queue_affinity to not rely on hctx->cpumask ublk: fold __ublk_create_dev into ublk_ctrl_add_dev ublk: cleanup ublk_ctrl_uring_cmd ublk: simplify ublk_ch_open and ublk_ch_release ublk: remove the empty open and release block device operations ublk: remove UBLK_IO_F_PREFLUSH ublk: add a MAINTAINERS entry block: don't allow the same type rq_qos add more than once mmc: fix disk/queue leak in case of adding disk failure ublk_drv: fix an IS_ERR() vs NULL check ublk: remove UBLK_IO_F_INTEGRITY ublk_drv: remove unneeded semicolon ...
2022-08-01scsi: ufs: ufs-pci: Correct check for RESET DSMDaniil Lunev1-4/+13
dsm_fns is a bitmap, and it is 0-indexed according to the check in __intel_dsm function. But common initialization was checking it as if it was 1-indexed. This patch corrects the discrepancy. This change won't break any existing calls to the function, since before the change both bits 0 and 1 were checked and needed to be set. Link: https://lore.kernel.org/r/20220728111748.v3.1.I22460c4f4a9ccf2c96c3f9bb392b409926d80b2f@changeid Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Daniil Lunev <dlunev@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-01scsi: ufs: core: Correct ufshcd_shutdown() flowPeter Wang1-5/+1
After ufshcd_wl_shutdown() set device power off and link off, ufshcd_shutdown() could turn off clock/power. Also remove pm_runtime_get_sync. The reason why it is safe to remove pm_runtime_get_sync() is because: - ufshcd_wl_shutdown() -> pm_runtime_get_sync() will resume hba->dev too. - device resume(turn on clk/power) is not required, even if device is in RPM_SUSPENDED. Link: https://lore.kernel.org/r/20220727030526.31022-1-peter.wang@mediatek.com Fixes: b294ff3e3449 ("scsi: ufs: core: Enable power management for wlun") Cc: <stable@vger.kernel.org> # 5.15.x Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-01scsi: ufs: core: Increase the maximum data buffer sizeBart Van Assche1-0/+1
Measurements for one particular UFS controller + UFS device show a 25% higher read bandwidth if the maximum data buffer size is increased from 512 KiB to 1 MiB. Hence increase the maximum size of the data buffer associated with a single request from SCSI_DEFAULT_MAX_SECTORS (1024) * 512 bytes = 512 KiB to 1 MiB. Notes: - The maximum data buffer size supported by the UFSHCI specification is 65535 * 256 KiB or about 16 GiB. - The maximum data buffer size for READ(10) commands is 65535 logical blocks. To transfer more than 65535 * 4096 bytes = 255 MiB with a single SCSI command, the READ(16) command is required. Support for READ(16) is optional in the UFS 3.1 and UFS 4.0 standards. Link: https://lore.kernel.org/r/20220726225232.1362251-1-bvanassche@acm.org Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Avri Altman <avri.altman@wdc.com> Cc: Bean Huo <beanhuo@micron.com> Cc: Stanley Chu <stanley.chu@mediatek.com> Tested-by: Avri Altman <avri.altman@wdc.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>
2022-07-26scsi: ufs: core: Fix spelling mistake "Cannnot" -> "Cannot"Colin Ian King1-1/+1
There is a spelling mistake in a dev_dbg message. Fix it. Link: https://lore.kernel.org/r/20220719110649.759821-1-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>
2022-07-26scsi: ufs: core: Fix a race condition related to device managementBart Van Assche1-18/+40
If a device management command completion happens after wait_for_completion_timeout() times out and before ufshcd_clear_cmds() is called, then the completion code may crash on the complete() call in __ufshcd_transfer_req_compl(). Fix the following crash: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Call trace: complete+0x64/0x178 __ufshcd_transfer_req_compl+0x30c/0x9c0 ufshcd_poll+0xf0/0x208 ufshcd_sl_intr+0xb8/0xf0 ufshcd_intr+0x168/0x2f4 __handle_irq_event_percpu+0xa0/0x30c handle_irq_event+0x84/0x178 handle_fasteoi_irq+0x150/0x2e8 __handle_domain_irq+0x114/0x1e4 gic_handle_irq.31846+0x58/0x300 el1_irq+0xe4/0x1c0 efi_header_end+0x110/0x680 __irq_exit_rcu+0x108/0x124 __handle_domain_irq+0x118/0x1e4 gic_handle_irq.31846+0x58/0x300 el1_irq+0xe4/0x1c0 cpuidle_enter_state+0x3ac/0x8c4 do_idle+0x2fc/0x55c cpu_startup_entry+0x84/0x90 kernel_init+0x0/0x310 start_kernel+0x0/0x608 start_kernel+0x4ec/0x608 Link: https://lore.kernel.org/r/20220720170228.1598842-1-bvanassche@acm.org Fixes: 5a0b0cb9bee7 ("[SCSI] ufs: Add support for sending NOP OUT UPIU") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Avri Altman <avri.altman@wdc.com> Cc: Bean Huo <beanhuo@micron.com> Cc: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-26scsi: ufs: host: Hold reference returned by of_parse_phandle()Liang He1-2/+13
In ufshcd_populate_vreg(), we should hold the reference returned by of_parse_phandle() and then use it to call of_node_put() for refcount balance. Link: https://lore.kernel.org/r/20220719071529.1081166-1-windhl@126.com Fixes: aa4976130934 ("ufs: Add regulator enable support") Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Liang He <windhl@126.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-18scsi: ufs: core: Read device property for ref clockDaniil Lunev1-0/+16
UFS storage devices require bRefClkFreq attribute to be set to operate correctly at high speed mode. The necessary value is determined by what the SoC / board supports. The standard doesn't specify a method to query the value, so the information needs to be fed in separately. DT information feeds into setting up the clock framework, so platforms using DT can get the UFS reference clock frequency from the clock framework. A special node "ref_clk" from the clock array for the UFS controller node is used as the source for the information. On the platforms that do not use DT (e.g. Intel), the alternative mechanism to feed the intended reference clock frequency is necessary. Specifying the necessary information in DSD of the UFS controller ACPI node is an alternative mechanism proposed in this patch. Those can be accessed via firmware property facility in the kernel and in many ways simillar to querying properties defined in DT. This patch introduces a small helper function to query a predetermined ACPI supplied property of the UFS controller, and uses it to attempt retrieving reference clock value, unless that was already done by the clock infrastructure. Link: https://lore.kernel.org/r/20220715210230.1.I365d113d275117dee8fd055ce4fc7e6aebd0bce9@changeid Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Daniil Lunev <dlunev@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-14scsi/ufs: Rename a 'dir' argument into 'op'Bart Van Assche1-2/+2
Improve consistency of the kernel code by renaming a request operation argument from 'dir' into 'op'. Reviewed-by: Avri Altman <avri.altman@wdc.com> Cc: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20220714180729.1065367-44-bvanassche@acm.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-14treewide: Rename enum req_opf into enum req_opBart Van Assche1-3/+2
The type name enum req_opf is misleading since it suggests that values of this type include both an operation type and flags. Since values of this type represent an operation only, change the type name into enum req_op. Convert the enum req_op documentation into kernel-doc format. Move a few definitions such that the enum req_op documentation occurs just above the enum req_op definition. The name "req_opf" was introduced by commit ef295ecf090d ("block: better op and flags encoding"). Cc: Christoph Hellwig <hch@lst.de> Cc: Ming Lei <ming.lei@redhat.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Damien Le Moal <damien.lemoal@wdc.com> Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20220714180729.1065367-2-bvanassche@acm.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-13scsi: ufs: core: Fix missing clk change notification on host resetPo-Wen Kao1-1/+1
In ufshcd_host_reset_and_restore(), ufshcd_set_clk_freq() is called to scale clock rate. However, this did not call vops->clk_scale_notify() to inform platform driver of clock change. Call ufshcd_scale_clks() instead so that clock change can be properly handled. Link: https://lore.kernel.org/r/20220711144224.17916-2-powen.kao@mediatek.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-13scsi: ufs: core: Drop loglevel of WriteBoost messageBjorn Andersson1-1/+1
Commit '3b5f3c0d0548 ("scsi: ufs: core: Tidy up WB configuration code")' changed the log level of the write boost enable/disable notification from debug to info. This results in a lot of noise in the kernel log during normal operation. Drop it back to debug level to avoid this. Link: https://lore.kernel.org/r/20220709000027.3929970-1-bjorn.andersson@linaro.org Fixes: 3b5f3c0d0548 ("scsi: ufs: core: Tidy up WB configuration code") Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Acked-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-13scsi: ufs: core: Remove UIC_HIBERN8_ENTER_RETRIESKeoseong Park1-3/+0
Commit 4db7a2360597 ("scsi: ufs: Fix concurrency of error handler and other error recovery paths") removed all callers of UIC_HIBERN8_ENTER_RETRIES. Hence also remove the macro itself. Link: https://lore.kernel.org/r/20220708052006epcms2p2d1129dbf95fd77f46906200ccb0a9ccd@epcms2p2 Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Keoseong Park <keosung.park@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-13scsi: ufs: ufs-exynos: Change ufs phy control sequenceChanho Park1-7/+10
Since commit 1599069a62c6 ("phy: core: Warn when phy_power_on is called before phy_init"), the following warning has been reported: phy_power_on was called before phy_init To address this, we need to remove phy_power_on from exynos_ufs_phy_init() and move it after phy_init. phy_power_off and phy_exit are also necessary in exynos_ufs_remove(). Link: https://lore.kernel.org/r/20220706020255.151177-4-chanho61.park@samsung.com Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Chanho Park <chanho61.park@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07scsi: ufs: Skip last hci reset to get valid register valuesJunwoo Lee1-1/+1
Once the host link startup fails 3 times, all host registers are reset to default values except in ufshcd_hba_enable(). The ufs host controller is disabled and enabled in ufshcd_hba_enable(). Consequently we need to skip last hci reset to get valid host register values. e.g. [ 1.898026] [2: kworker/u16:2: 211] ufs: link startup failed 1 [ 1.898133] [2: kworker/u16:2: 211] host_regs: 00000000: 1383ff1f 00000000 00000300 00000000 [ 1.898141] [2: kworker/u16:2: 211] host_regs: 00000010: 00000106 000001ce 00000000 00000000 [ 1.898148] [2: kworker/u16:2: 211] host_regs: 00000020: 00000000 00000470 00000000 00000000 [ 1.898155] [2: kworker/u16:2: 211] host_regs: 00000030: 00000008 00000003 00000000 00000000 [ 1.898163] [2: kworker/u16:2: 211] host_regs: 00000040: 00000000 00000000 00000000 00000000 [ 1.898171] [2: kworker/u16:2: 211] host_regs: 00000050: 00000000 00000000 00000000 00000000 [ 1.898177] [2: kworker/u16:2: 211] host_regs: 00000060: 00000000 00000000 00000000 00000000 [ 1.898186] [2: kworker/u16:2: 211] host_regs: 00000070: 00000000 00000000 00000000 00000000 [ 1.898194] [2: kworker/u16:2: 211] host_regs: 00000080: 00000000 00000000 00000000 00000000 [ 1.898201] [2: kworker/u16:2: 211] host_regs: 00000090: 00000000 00000000 00000000 00000000 Link: https://lore.kernel.org/r/20220705083538.15143-1-sh043.lee@samsung.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Junwoo Lee <junwoo80.lee@samsung.com> Signed-off-by: Seunghui Lee <sh043.lee@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07scsi: ufs: ufs-pci: Enable WriteBooster capability on ADLDaniil Lunev1-0/+1
Sets the WriteBooster capability flag when ADL's UFS controller is used. Link: https://lore.kernel.org/r/20220705165316.v2.1.Ib5ebec952d9a59f5c69c89b694777f517d22466d@changeid Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Daniil Lunev <dlunev@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07Merge branch '5.19/scsi-fixes' into 5.20/scsi-stagingMartin K. Petersen1-28/+48
Bring in fixes to resolve a merge conflict in the lpfc driver update. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-28block: simplify disk shutdownChristoph Hellwig1-2/+2
Set the queue dying flag and call blk_mq_exit_queue from del_gendisk for all disks that do not have separately allocated queues, and thus remove the need to call blk_cleanup_queue for them. Rename blk_cleanup_disk to blk_mq_destroy_queue to make it clear that this function is intended only for separately allocated blk-mq queues. This saves an extra queue freeze for devices without a separately allocated queue. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20220619060552.1850436-6-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-06-27scsi: ufs: ufs-qcom: Remove unneeded codeChanWoo Lee1-23/+0
Checks information about tx_lanes, but is not used. Since commit 1e1e465c6d23 ("scsi/ufs: qcom: Remove ufs_qcom_phy_*() calls from host"), tx_lanes is deprecated. As a result, ufs_qcom_link_startup_notify -> POST_CHANGE action does nothing. If it is not going to be updated, it can be removed. Link: https://lore.kernel.org/r/20220627235545.16943-1-cw9316.lee@samsung.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: ChanWoo Lee <cw9316.lee@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-27scsi: ufs: ufs-mediatek: Fix invalid access to vccqxAlice Chao1-0/+1
NULL pointer access issue was found for the regulator released by ufs_mtk_vreg_fix_vccq(). Simply fix this issue by clearing the released vreg pointer in ufs_hba struct. Link: https://lore.kernel.org/r/20220623035052.18802-9-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Alice Chao <alice.chao@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-27scsi: ufs: ufs-mediatek: Support performance boostingPeter Wang2-8/+29
Add pm-qos request to support performance boosting in MediaTek UFS platforms. At the same time, adjust the order of function calls to be symmetric during the low-power control flow. Link: https://lore.kernel.org/r/20220623035052.18802-8-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-27scsi: ufs: ufs-mediatek: Support host power controlPo-Wen Kao2-0/+17
Add interfaces for controlling the host power to optimize the power consumption in MediaTek UFS platforms. Link: https://lore.kernel.org/r/20220623035052.18802-7-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-27scsi: ufs: ufs-mediatek: Disable reset confirm feature by UniProPo-Wen Kao1-0/+5
In MediaTek UFS platforms, UniPro will not return reset confirm if it is in POWERDOWN state thus hang issue may happen while disabling UFSHCI. Simply disable this feature before UniPro leaves POWERDOWN state. Link: https://lore.kernel.org/r/20220623035052.18802-6-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-27scsi: ufs: ufs-mediatek: Add stage information for ref-clk controlPeter Wang2-6/+7
Add "PRE_CHANGE" and "POST_CHANGE" information for ref-clk control to precisely configure the low-power state of the parent of ref-clk. Link: https://lore.kernel.org/r/20220623035052.18802-5-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-27scsi: ufs: ufs-mediatek: Prevent host hang by setting CLK_CG earlyPeter Wang2-0/+9
Some UFSHCI hosts in MediaTek UFS platform need workaround to prevent host hang issue by setting CLK_CG bit before host is enabled. This operation shall have no side effect on those platforms which do not support this bit. Link: https://lore.kernel.org/r/20220623035052.18802-4-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-27scsi: ufs: ufs-mediatek: Always add delays for VCC operationsPeter Wang1-2/+3
MediaTek decides to always add delays before and after VCC is turned-off. Link: https://lore.kernel.org/r/20220623035052.18802-3-stanley.chu@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-27scsi: ufs: ufs-mediatek: Fix build warningsStanley Chu1-4/+4
Fix build warnings: 1. ../drivers/ufs/host/ufs-mediatek.c:1375:5: error: no previous prototype for function 'ufs_mtk_system_suspend' [-Werror,-Wmissing-prototypes] int ufs_mtk_system_suspend(struct device *dev) ^ ../drivers/ufs/host/ufs-mediatek.c:1375:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ufs_mtk_system_suspend(struct device *dev) ^ static 2. ../drivers/ufs/host/ufs-mediatek.c:702:50: error: format specifies type 'unsigned long' but the argument has type 'int' [-Werror,-Wformat] snprintf(vcc_name, MAX_VCC_NAME, "vcc-ufs%lu", ver); ~~~ ^~~ %d Link: https://lore.kernel.org/r/20220623035052.18802-2-stanley.chu@mediatek.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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