- 16 Sep, 2020 2 commits
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Damien Le Moal authored
Make sure to call sd_zbc_init_disk() when the sdkp->zoned field is known, that is, once sd_read_block_characteristics() is executed in sd_revalidate_disk(), so that host-aware disks also get initialized. To do so, move sd_zbc_init_disk() call in sd_zbc_revalidate_zones() and make sure to execute it for all zoned disks, including for host-aware disks used as regular disks as these disk zoned model may be changed back to BLK_ZONED_HA when partitions are deleted. Link: https://lore.kernel.org/r/20200915073347.832424-3-damien.lemoal@wdc.com Fixes: 5795eb44 ("scsi: sd_zbc: emulate ZONE_APPEND commands") Cc: <stable@vger.kernel.org> # v5.8+ Reported-by:
Borislav Petkov <bp@alien8.de> Tested-by:
Borislav Petkov <bp@suse.de> Reviewed-by:
Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Damien Le Moal authored
When CONFIG_BLK_DEV_ZONED is disabled, allow using host-aware ZBC disks as regular disks. In this case, ensure that command completion is correctly executed by changing sd_zbc_complete() to return good_bytes instead of 0 and causing a hang during device probe (endless retries). When CONFIG_BLK_DEV_ZONED is enabled and a host-aware disk is detected to have partitions, it will be used as a regular disk. In this case, make sure to not do anything in sd_zbc_revalidate_zones() as that triggers warnings. Since all these different cases result in subtle settings of the disk queue zoned model, introduce the block layer helper function blk_queue_set_zoned() to generically implement setting up the effective zoned model according to the disk type, the presence of partitions on the disk and CONFIG_BLK_DEV_ZONED configuration. Link: https://lore.kernel.org/r/20200915073347.832424-2-damien.lemoal@wdc.com Fixes: b7205307 ("block: allow partitions on host aware zone devices") Cc: <stable@vger.kernel.org> Reported-by:
Christoph Hellwig <hch@infradead.org> Reviewed-by:
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- 15 Sep, 2020 1 commit
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James Smart authored
Initial FLOGIs are failing with the following message: lpfc 0000:13:00.1: 1:(0):0820 FLOGI Failed (x300). BBCredit Not Supported In a prior patch, the READ_SPARAM command was re-ordered to post after CONFIG_LINK as the driver is expected to update the driver's copy of the service parameters for the FLOGI payload. If the bb-credit recovery feature is enabled, this is fine. But on adapters were bb-credit recovery isn't enabled, it would cause the FLOGI to fail. Fix by restoring the original command order (READ_SPARAM before CONFIG_LINK), and after issuing CONFIG_LINK, detect bb-credit recovery support and reissuing READ_SPARAM to obtain the updated service parameters (effectively adding in the fix command order). [mkp: corrected SHA] Link: https://lore.kernel.org/r/20200911200147.110826-1-james.smart@broadcom.com Fixes: 835214f5 ("scsi: lpfc: Fix broken Credit Recovery after driver load") CC: <stable@vger.kernel.org> # v5.7+ Co-developed-by:
Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by:
James Smart <james.smart@broadcom.com> Signed-off-by:
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- 10 Sep, 2020 1 commit
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Dan Carpenter authored
In sas_notify_lldd_dev_found(), if we can't allocate the necessary resources, then it seems like the wrong thing to mark the device as found and to increment the reference count. None of the callers ever drop the reference in that situation. [mkp: tweaked commit desc based on feedback from John] Link: https://lore.kernel.org/r/20200905125836.GF183976@mwanda Fixes: 735f7d2f ("[SCSI] libsas: fix domain_device leak") Reviewed-by:
Jason Yan <yanaijie@huawei.com> Acked-by:
John Garry <john.garry@huawei.com> Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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- 03 Sep, 2020 3 commits
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Tomas Henzl authored
disable_irq() might sleep, replace it with disable_irq_nosync(). For synchronisation 'irq_poll_scheduled' is sufficient Fixes: 320e77ac scsi: mpt3sas: Irq poll to avoid CPU hard lockups Link: https://lore.kernel.org/r/20200901145026.12174-1-thenzl@redhat.comSigned-off-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
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Tomas Henzl authored
disable_irq() might sleep. Replace it with disable_irq_nosync() which is sufficient as irq_poll_scheduled protects against concurrently running complete_cmd_fusion() from megasas_irqpoll() and megasas_isr_fusion(). Link: https://lore.kernel.org/r/20200827165332.8432-1-thenzl@redhat.com Fixes: a6ffd5bf scsi: megaraid_sas: Call disable_irq from process IRQ poll Signed-off-by:
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Hou Pu authored
The iSCSI target login thread might get stuck with the following stack: cat /proc/`pidof iscsi_np`/stack [<0>] down_interruptible+0x42/0x50 [<0>] iscsit_access_np+0xe3/0x167 [<0>] iscsi_target_locate_portal+0x695/0x8ac [<0>] __iscsi_target_login_thread+0x855/0xb82 [<0>] iscsi_target_login_thread+0x2f/0x5a [<0>] kthread+0xfa/0x130 [<0>] ret_from_fork+0x1f/0x30 This can be reproduced via the following steps: 1. Initiator A tries to log in to iqn1-tpg1 on port 3260. After finishing PDU exchange in the login thread and before the negotiation is finished the the network link goes down. At this point A has not finished login and tpg->np_login_sem is held. 2. Initiator B tries to log in to iqn2-tpg1 on port 3260. After finishing PDU exchange in the login thread the target expects to process remaining login PDUs in workqueue context. 3. Initiator A' tries to log in to iqn1-tpg1 on port 3260 from a new socket. A' will wait for tpg->np_login_sem with np->np_login_timer loaded to wait for at most 15 seconds. The lock is held by A so A' eventually times out. 4. Before A' got timeout initiator B gets negotiation failed and calls iscsi_target_login_drop()->iscsi_target_login_sess_out(). The np->np_login_timer is canceled and initiator A' will hang forever. Because A' is now in the login thread, no new login requests can be serviced. Fix this by moving iscsi_stop_login_thread_timer() out of iscsi_target_login_sess_out(). Also remove iscsi_np parameter from iscsi_target_login_sess_out(). Link: https://lore.kernel.org/r/20200729130343.24976-1-houpu@bytedance.com Cc: stable@vger.kernel.org Reviewed-by:
Mike Christie <michael.christie@oracle.com> Signed-off-by:
Hou Pu <houpu@bytedance.com> Signed-off-by:
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- 02 Sep, 2020 2 commits
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Luo Jiaxing authored
It was discovered that sdparm will fail when attempting to disable write cache on a SATA disk connected via libsas. In the ATA command set the write cache state is controlled through the SET FEATURES operation. This is roughly corresponds to MODE SELECT in SCSI and the latter command is what is used in the SCSI-ATA translation layer. A subtle difference is that a MODE SELECT carries data whereas SET FEATURES is defined as a non-data command in ATA. Set the DMA data direction to DMA_NONE if the requested ATA command is identified as non-data. [mkp: commit desc] Fixes: fa1c1e8f ("[SCSI] Add SATA support to libsas") Link: https://lore.kernel.org/r/1598426666-54544-1-git-send-email-luojiaxing@huawei.comReviewed-by:
Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by:
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Varun Prakash authored
Current code does not consider 'page_off' in data digest calculation. To fix this, add a local variable 'first_sg' and set first_sg.offset to sg->offset + page_off. Link: https://lore.kernel.org/r/1598358910-3052-1-git-send-email-varun@chelsio.com Fixes: e48354ce ("iscsi-target: Add iSCSI fabric support for target v4.1") Cc: <stable@vger.kernel.org> Reviewed-by:
Mike Christie <michael.christie@oralce.com> Signed-off-by:
Varun Prakash <varun@chelsio.com> Signed-off-by:
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- 01 Sep, 2020 7 commits
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James Smart authored
Update lpfc version to 12.8.0.4 Link: https://lore.kernel.org/r/20200828175332.130300-5-james.smart@broadcom.comCo-developed-by:
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James Smart authored
Currently the driver registers for Link Integrity events only. This patch adds registration for the following FPIN types: - Delivery Notifications - Congestion Notification - Peer Congestion Notification Link: https://lore.kernel.org/r/20200828175332.130300-4-james.smart@broadcom.comCo-developed-by:
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James Smart authored
The driver is unable to successfully login with remote device. During pt2pt login, the driver completes its FLOGI request with the remote device having WWN precedence. The remote device issues its own (delayed) FLOGI after accepting the driver's and, upon transmitting the FLOGI, immediately recognizes it has already processed the driver's FLOGI thus it transitions to sending a PLOGI before waiting for an ACC to its FLOGI. In the driver, the FLOGI is received and an ACC sent, followed by the PLOGI being received and an ACC sent. The issue is that the PLOGI reception occurs before the response from the adapter from the FLOGI ACC is received. Processing of the PLOGI sets state flags to perform the REG_RPI mailbox command and proceed with the rest of discovery on the port. The same completion routine used by both FLOGI and PLOGI is generic in nature. One of the things it does is clear flags, and those flags happen to drive the rest of discovery. So what happened was the PLOGI processing set the flags, the FLOGI ACC completion cleared them, thus when the PLOGI ACC completes it doesn't see the flags and stops. Fix by modifying the generic completion routine to not clear the rest of discovery flag (NLP_ACC_REGLOGIN) unless the completion is also associated with performing a mailbox command as part of its handling. For things such as FLOGI ACC, there isn't a subsequent action to perform with the adapter, thus there is no mailbox cmd ptr. PLOGI ACC though will perform REG_RPI upon completion, thus there is a mailbox cmd ptr. Link: https://lore.kernel.org/r/20200828175332.130300-3-james.smart@broadcom.comCo-developed-by:
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James Smart authored
Some systems are reporting the following log message during driver unload or system shutdown: ics_rtas_set_affinity: No online cpus in the mask A prior commit introduced the writing of an empty affinity mask in calls to irq_set_affinity_hint() when disabling interrupts or when there are no remaining online CPUs to service an eq interrupt. At least some ppc64 systems are checking whether affinity masks are empty or not. Do not call irq_set_affinity_hint() with an empty CPU mask. Fixes: dcaa2136 ("scsi: lpfc: Change default IRQ model on AMD architectures") Link: https://lore.kernel.org/r/20200828175332.130300-2-james.smart@broadcom.com Cc: <stable@vger.kernel.org> # v5.5+ Co-developed-by:
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René Rebe authored
Commit 98aee70d ("qla2xxx: Add endianizer to max_payload_size modifier.") in 2014 broke qla2xxx on sparc64, e.g. as in the Sun Blade 1000 / 2000. Unbreak by partial revert to fix endianness in nvram firmware default initialization. Also mark the second frame_payload_size in nvram_t __le16 to avoid new sparse warnings. Link: https://lore.kernel.org/r/20200827.222729.1875148247374704975.rene@exactcode.com Fixes: 98aee70d ("qla2xxx: Add endianizer to max_payload_size modifier.") Reviewed-by:
Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by:
Bart Van Assche <bvanassche@acm.org> Acked-by:
Arun Easi <aeasi@marvell.com> Signed-off-by:
René Rebe <rene@exactcode.com> Signed-off-by:
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Javed Hasan authored
Fix for '&fp->skb' double free. Link: https://lore.kernel.org/r/20200825093940.19612-1-jhasan@marvell.comReported-by:
Javed Hasan <jhasan@marvell.com> Signed-off-by:
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Dinghao Liu authored
When pm8001_tag_alloc() fails, task should be freed just like it is done in the subsequent error paths. Link: https://lore.kernel.org/r/20200823091453.4782-1-dinghao.liu@zju.edu.cnAcked-by:
Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by:
Dinghao Liu <dinghao.liu@zju.edu.cn> Signed-off-by:
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- 25 Aug, 2020 3 commits
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Niklas Cassel authored
resp_open_zone() always calls zbc_open_zone() with parameter explicit set to true. If zbc_open_zone() is called with parameter explicit set to true, and the current zone state is implicit open, it will call zbc_close_zone() on the zone before proceeding. Therefore, there is no need for resp_open_zone() to call zbc_close_zone() on an implicitly open zone before calling zbc_open_zone(). Remove superfluous close zone in resp_open_zone(). Link: https://lore.kernel.org/r/20200821130007.39938-1-niklas.cassel@wdc.comReviewed-by:
Niklas Cassel <niklas.cassel@wdc.com> Signed-off-by:
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Dan Carpenter authored
We accidentally move this logging printk after the free, but that leads to a use after free. Link: https://lore.kernel.org/r/20200824085933.GD208317@mwanda Fixes: e33c2482 ("scsi: cxgb4i: Add support for iSCSI segmentation offload") Signed-off-by:
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Ye Bin authored
Link: https://lore.kernel.org/r/20200824033436.45570-1-yebin10@huawei.comAcked-by:
Saurav Kashyap <skashyap@marvell.com> Signed-off-by:
Ye Bin <yebin10@huawei.com> Signed-off-by:
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- 18 Aug, 2020 21 commits
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Quinn Tran authored
FCP T10-PI and NVMe features are independent of each other. This patch allows both features to co-exist. This reverts commit 5da05a26. Link: https://lore.kernel.org/r/20200806111014.28434-12-njavali@marvell.com Fixes: 5da05a26 ("scsi: qla2xxx: Disable T10-DIF feature with FC-NVMe during probe") Reviewed-by:
Quinn Tran <qutran@marvell.com> Signed-off-by:
Nilesh Javali <njavali@marvell.com> Signed-off-by:
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Saurav Kashyap authored
FCoE adapter initialization failed for ISP8021 with the following patch applied. In addition, reproduction of the issue the patch originally tried to address has been unsuccessful. This reverts commit 3cb182b3. Link: https://lore.kernel.org/r/20200806111014.28434-11-njavali@marvell.comReviewed-by:
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Quinn Tran authored
NVMEAsync command is being submitted to QLA while the same NVMe controller is in the middle of reset. The reset path has deleted the association and freed aen_op->fcp_req.private. Add a check for this private pointer before issuing the command. ... 6 [ffffb656ca11fce0] page_fault at ffffffff8c00114e [exception RIP: qla_nvme_post_cmd+394] RIP: ffffffffc0d012ba RSP: ffffb656ca11fd98 RFLAGS: 00010206 RAX: ffff8fb039eda228 RBX: ffff8fb039eda200 RCX: 00000000000da161 RDX: ffffffffc0d4d0f0 RSI: ffffffffc0d26c9b RDI: ffff8fb039eda220 RBP: 0000000000000013 R8: ffff8fb47ff6aa80 R9: 0000000000000002 R10: 0000000000000000 R11: ffffb656ca11fdc8 R12: ffff8fb27d04a3b0 R13: ffff8fc46dd98a58 R14: 0000000000000000 R15: ffff8fc4540f0000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 7 [ffffb656ca11fe08] nvme_fc_start_fcp_op at ffffffffc0241568 [nvme_fc] 8 [ffffb656ca11fe50] nvme_fc_submit_async_event at ffffffffc0241901 [nvme_fc] 9 [ffffb656ca11fe68] nvme_async_event_work at ffffffffc014543d [nvme_core] 10 [ffffb656ca11fe98] process_one_work at ffffffff8b6cd437 11 [ffffb656ca11fed8] worker_thread at ffffffff8b6cdcef 12 [ffffb656ca11ff10] kthread at ffffffff8b6d3402 13 [ffffb656ca11ff50] ret_from_fork at ffffffff8c000255 -- PID: 37824 TASK: ffff8fb033063d80 CPU: 20 COMMAND: "kworker/u97:451" 0 [ffffb656ce1abc28] __schedule at ffffffff8be629e3 1 [ffffb656ce1abcc8] schedule at ffffffff8be62fe8 2 [ffffb656ce1abcd0] schedule_timeout at ffffffff8be671ed 3 [ffffb656ce1abd70] wait_for_completion at ffffffff8be639cf 4 [ffffb656ce1abdd0] flush_work at ffffffff8b6ce2d5 5 [ffffb656ce1abe70] nvme_stop_ctrl at ffffffffc0144900 [nvme_core] 6 [ffffb656ce1abe80] nvme_fc_reset_ctrl_work at ffffffffc0243445 [nvme_fc] 7 [ffffb656ce1abe98] process_one_work at ffffffff8b6cd437 8 [ffffb656ce1abed8] worker_thread at ffffffff8b6cdb50 9 [ffffb656ce1abf10] kthread at ffffffff8b6d3402 10 [ffffb656ce1abf50] ret_from_fork at ffffffff8c000255 Link: https://lore.kernel.org/r/20200806111014.28434-10-njavali@marvell.comReviewed-by: -
Saurav Kashyap authored
OS boot during Boot from SAN was stuck at dracut emergency shell after enabling NVMe driver parameter. For non-MQ support the driver was enabling MQ. Add a check to confirm if FW supports MQ. Link: https://lore.kernel.org/r/20200806111014.28434-9-njavali@marvell.comReviewed-by:
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Arun Easi authored
qla_nvme_register_hba() puts out a warning when there are not enough queue pairs available for FC-NVME. Just fail the NVME registration rather than a WARNING + call Trace. Link: https://lore.kernel.org/r/20200806111014.28434-8-njavali@marvell.comReviewed-by:
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Arun Easi authored
ql2xextended_error_logging can now be set to 1 to get the default mask value, as opposed to at module load time only. Link: https://lore.kernel.org/r/20200806111014.28434-7-njavali@marvell.comReviewed-by:
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Quinn Tran authored
Update debug level and message for ELS IOCB done. Link: https://lore.kernel.org/r/20200806111014.28434-6-njavali@marvell.comReviewed-by:
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Quinn Tran authored
Multipath errors were seen during failback due to login timeout. The remote device sent LOGO, the local host tore down the session and did relogin. The RSCN arrived indicates remote device is going through failover after which the relogin is in a 20s timeout phase. At this point the driver is stuck in the relogin process. Add a fix to delete the session as part of abort/flush the login. Link: https://lore.kernel.org/r/20200806111014.28434-5-njavali@marvell.comReviewed-by:
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Quinn Tran authored
Correct the supported speeds for 16G Mezz card. Link: https://lore.kernel.org/r/20200806111014.28434-4-njavali@marvell.comReviewed-by:
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Quinn Tran authored
Perform implicit logout to flush I/O on zone disable. Link: https://lore.kernel.org/r/20200806111014.28434-3-njavali@marvell.comReviewed-by:
Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Quinn Tran authored
On Zone Disable, certain switches would ignore all commands. This causes timeout for both switch scan command and abort of that command. On detection of this condition, all sessions will be shutdown. Link: https://lore.kernel.org/r/20200806111014.28434-2-njavali@marvell.comReviewed-by:
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Enzo Matsumiya authored
Improves readability of qla_mbx.c. Link: https://lore.kernel.org/r/20200805200546.22497-1-ematsumiya@suse.deReviewed-by:
Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by:
Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by:
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Douglas Gilbert authored
John Garry reported 'sdebug_q_cmd_complete: scp is NULL' failures that were mainly seen on aarch64 machines (e.g. RPi 4 with four A72 CPUs). The problem was tracked down to a missing critical section on a "short circuit" path. Namely, the time to process the current command so far has already exceeded the requested command duration (i.e. the number of nanoseconds in the ndelay parameter). The random=1 parameter setting was pivotal in finding this error. The failure scenario involved first taking that "short circuit" path (due to a very short command duration) and then taking the more likely hrtimer_start() path (due to a longer command duration). With random=1 each command's duration is taken from the uniformly distributed [0..ndelay) interval. The fio utility also helped by reliably generating the error scenario at about once per minute on a RPi 4 (64 bit OS). Link: https://lore.kernel.org/r/20200813155738.109298-1-dgilbert@interlog.comReported-by:
Lee Duncan <lduncan@suse.com> Signed-off-by:
Douglas Gilbert <dgilbert@interlog.com> Signed-off-by:
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Steffen Maier authored
Before v4.15 commit 75492a51 ("s390/scsi: Convert timers to use timer_setup()"), we intentionally only passed zfcp_adapter as context argument to zfcp_fsf_request_timeout_handler(). Since we only trigger adapter recovery, it was unnecessary to sync against races between timeout and (late) completion. Likewise, we only passed zfcp_erp_action as context argument to zfcp_erp_timeout_handler(). Since we only wakeup an ERP action, it was unnecessary to sync against races between timeout and (late) completion. Meanwhile the timeout handlers get timer_list as context argument and do a timer-specific container-of to zfcp_fsf_req which can have been freed. Fix it by making sure that any request timeout handlers, that might just have started before del_timer(), are completed by using del_timer_sync() instead. This ensures the request free happens afterwards. Space time diagram of potential use-after-free: Basic idea is to have 2 or more pending requests whose timeouts run out at almost the same time. req 1 timeout ERP thread req 2 timeout ---------------- ---------------- --------------------------------------- zfcp_fsf_request_timeout_handler fsf_req = from_timer(fsf_req, t, timer) adapter = fsf_req->adapter zfcp_qdio_siosl(adapter) zfcp_erp_adapter_reopen(adapter,...) zfcp_erp_strategy ... zfcp_fsf_req_dismiss_all list_for_each_entry_safe zfcp_fsf_req_complete 1 del_timer 1 zfcp_fsf_req_free 1 zfcp_fsf_req_complete 2 zfcp_fsf_request_timeout_handler del_timer 2 fsf_req = from_timer(fsf_req, t, timer) zfcp_fsf_req_free 2 adapter = fsf_req->adapter ^^^^^^^ already freed Link: https://lore.kernel.org/r/20200813152856.50088-1-maier@linux.ibm.com Fixes: 75492a51 ("s390/scsi: Convert timers to use timer_setup()") Cc: <stable@vger.kernel.org> #4.15+ Suggested-by:
Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by:
Steffen Maier <maier@linux.ibm.com> Signed-off-by:
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Bean Huo authored
If the bit corresponding to a task in the Doorbell register has been cleared, no need to poll the status of the task on the device side and to send an Abort Task TM. Instead, let it directly goto cleanup. In addition, to keep original debug output, move the goto below the debug print. Link: https://lore.kernel.org/r/20200811141859.27399-3-huobean@gmail.comReviewed-by:
Stanley Chu <stanley.chu@mediatek.com> Reviewed-by:
Can Guo <cang@codeaurora.org> Signed-off-by:
Bean Huo <beanhuo@micron.com> Signed-off-by:
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Stanley Chu authored
If somehow no interrupt notification is raised for a completed request and its doorbell bit is cleared by host, UFS driver needs to cleanup its outstanding bit in ufshcd_abort(). Otherwise, system may behave abnormally in the following scenario: After ufshcd_abort() returns, this request will be requeued by SCSI layer with its outstanding bit set. Any future completed request will trigger ufshcd_transfer_req_compl() to handle all "completed outstanding bits". At this time the "abnormal outstanding bit" will be detected and the "requeued request" will be chosen to execute request post-processing flow. This is wrong because this request is still "alive". Link: https://lore.kernel.org/r/20200811141859.27399-2-huobean@gmail.comReviewed-by:
Avri Altman <avri.altman@wdc.com> Signed-off-by:
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Adrian Hunter authored
For shared interrupts, the interrupt status might be zero, so check that first. Link: https://lore.kernel.org/r/20200811133936.19171-2-adrian.hunter@intel.comReviewed-by:
Adrian Hunter <adrian.hunter@intel.com> Signed-off-by:
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Adrian Hunter authored
The interrupt might be shared, in which case it is not an error for the interrupt handler to be called when the interrupt status is zero, so don't print the message unless there was enabled interrupt status. Link: https://lore.kernel.org/r/20200811133936.19171-1-adrian.hunter@intel.com Fixes: 9333d775 ("scsi: ufs: Fix irq return code") Reviewed-by:
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Adrian Hunter authored
Intel EHL UFS host controller advertises auto-hibernate capability but it does not work correctly. Add a quirk for that. [mkp: checkpatch fix] Link: https://lore.kernel.org/r/20200810141024.28859-1-adrian.hunter@intel.com Fixes: 8c09d752 ("scsi: ufshdc-pci: Add Intel PCI IDs for EHL") Acked-by:
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Stanley Chu authored
Fix incorrect calculation of "ms" based waiting time in function ufs_mtk_setup_clocks(). Link: https://lore.kernel.org/r/20200809055702.20140-1-stanley.chu@mediatek.com Fixes: 9006e398 ("scsi: ufs-mediatek: Do not gate clocks if auto-hibern8 is not entered yet") Reviewed-by:
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Stanley Chu authored
In ufshcd_suspend(), after clk-gating is suspended and link is set as Hibern8 state, ufshcd_hold() is still possibly invoked before ufshcd_suspend() returns. For example, MediaTek's suspend vops may issue UIC commands which would call ufshcd_hold() during the command issuing flow. Now if UFSHCD_CAP_HIBERN8_WITH_CLK_GATING capability is enabled, then ufshcd_hold() may enter infinite loops because there is no clk-ungating work scheduled or pending. In this case, ufshcd_hold() shall just bypass, and keep the link as Hibern8 state. Link: https://lore.kernel.org/r/20200809050734.18740-1-stanley.chu@mediatek.comReviewed-by:
Andy Teng <andy.teng@mediatek.com> Signed-off-by:
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