linux-dev/drivers/scsi/hisi_sas, branch master

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2022-10-07T19:33:18Z

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() ...

scsi: hisi_sas: Don't send bcast events from HW during nexus HA reset

2022-09-07T02:28:11Z

Remote devices may go missing from the per-device nexus reset part of the HA nexus, i.e after the controller reset. This is because libsas may find the devices to be gone as the phy may be temporarily down when processing the bcast event generated from the nexus reset. Filter out bcast events during this time to stop the devices being lost. Link: https://lore.kernel.org/r/1662378529-101489-6-git-send-email-john.garry@huawei.com Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: hisi_sas: Add helper to process bcast events

2022-09-07T02:28:11Z

Add a helper for bcast processing to reduce duplication. Link: https://lore.kernel.org/r/1662378529-101489-5-git-send-email-john.garry@huawei.com Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: hisi_sas: Drain bcast events in hisi_sas_rescan_topology()

2022-09-07T02:28:11Z

In resetting the controller, SATA devices may be lost. The issue is that when we insert the bcast events to rescan the topology in hisi_sas_rescan_topology(), when we subsequently nexus reset the SATA devices in hisi_sas_async_I_T_nexus_reset(), there is a small timing window in which the remote phy is down and we process the bcast event (meaning that libsas judges that the disk is lost). Ensure that all bcast events are processed prior to the nexus reset to close this window. Link: https://lore.kernel.org/r/1662378529-101489-4-git-send-email-john.garry@huawei.com Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: hisi_sas: Clear HISI_SAS_HW_FAULT_BIT earlier

2022-09-07T02:28:10Z

Once the controller HW has been reset then we can unset flag HISI_SAS_HW_FAULT_BIT. In clearing this flag earlier we can now successfully execute commands in hisi_sas_controller_reset_done(), like bcast processing. Link: https://lore.kernel.org/r/1662378529-101489-3-git-send-email-john.garry@huawei.com Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: hisi_sas: Revert change to limit max hw sectors for v3 HW

2022-09-07T02:28:10Z

Now that libsas and the SCSI core code limits the default sectors from commit 4cbfca5f7750 ("scsi: scsi_transport_sas: cap shost opt_sectors according to DMA optimal limit") and commit 608128d391fa ("scsi: sd: allow max_sectors be capped at DMA optimal size limit"), there is no need for the hack to limit the max HW sectors. Link: https://lore.kernel.org/r/1662378529-101489-2-git-send-email-john.garry@huawei.com Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

block: Change the return type of blk_mq_map_queues() into void

2022-08-22T16:07:53Z

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 Cc: Jason Wang Cc: Keith Busch Cc: Martin K. Petersen Cc: Doug Gilbert Cc: Michael S. Tsirkin Signed-off-by: Bart Van Assche Reviewed-by: John Garry Acked-by: Md Haris Iqbal Reviewed-by: Sagi Grimberg Link: https://lore.kernel.org/r/20220815170043.19489-3-bvanassche@acm.org [axboe: fold in fix from Bart] Signed-off-by: Jens Axboe

scsi: hisi_sas: Modify v3 HW SATA completion error processing

2022-07-19T03:04:12Z

If the I/O completion response frame returned by the target device has been written to the host memory and the err bit in the status field of the received fis is 1, ts->stat should set to SAS_PROTO_RESPONSE, and this will let EH analyze and further determine cause of failure. Link: https://lore.kernel.org/r/1657823002-139010-5-git-send-email-john.garry@huawei.com Signed-off-by: Xingui Yang Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: hisi_sas: Relocate DMA unmap of SMP task

2022-07-19T03:04:12Z

Currently SMP tasks are DMA unmapped only when cq of SMP I/O is returned normally. If the cq of SMP I/O is returned with exception actually SMP TAS is never unmapped. Relocate DMA unmap of SMP task to fix the issue. Link: https://lore.kernel.org/r/1657823002-139010-4-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: hisi_sas: Remove unnecessary variable to hold DMA map elements

2022-07-19T03:04:11Z

Use slot->n_elem to store the return value of dma_map_sg() for SSP and SMP IOs, and remove unnecessary variable n_elem_req. Link: https://lore.kernel.org/r/1657823002-139010-3-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen