kernel/linux.git/drivers/scsi/mvsas, branch v6.2.2

scsi: mvsas: Use sas_task_find_rq() for tagging

2022-10-22T03:02:52+00:00

The request associated with a SCSI command coming from the block layer has a unique tag, so use that when possible for getting a slot. Unfortunately we don't support reserved commands in the SCSI midlayer yet. As such, SMP tasks - as an example - will not have a request associated, so in the interim continue to manage those tags for that type of sas_task internally. We reserve an arbitrary 4 tags for these internal tags. Indeed, we already decrement MVS_RSVD_SLOTS by 2 for the shost can_queue when flag MVF_FLAG_SOC is set. This change was made in commit 20b09c2992fe ("[SCSI] mvsas: add support for 94xx; layout change; bug fixes"), but what those 2 slots are used for is not obvious. Also make the tag management functions static, where possible. Signed-off-by: John Garry Link: https://lore.kernel.org/r/1666091763-11023-8-git-send-email-john.garry@huawei.com Signed-off-by: Martin K. Petersen

scsi: mvsas: Delete mvs_tag_init()

2022-10-22T03:02:51+00:00

All mvs_tag_init() does is zero the tag bitmap, but this is already done with the kzalloc() call to alloc the tags, so delete this unneeded function. Signed-off-by: John Garry Link: https://lore.kernel.org/r/1666091763-11023-7-git-send-email-john.garry@huawei.com Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke Signed-off-by: Martin K. Petersen

scsi: mvsas: Use sas_find_attached_phy_id() instead of open coding it

2022-10-18T03:28:09+00:00

The attached phy finding is open coded. Replace it with sas_find_attached_phy_id(). To keep things consistent, the return value of mvs_dev_found_notify() is also changed to -ENODEV after calling sas_find_attathed_phy_id() failed. Signed-off-by: Jason Yan Link: https://lore.kernel.org/r/20220928070130.3657183-5-yanaijie@huawei.com Reviewed-by: Jack Wang Reviewed-by: Damien Le Moal Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen

scsi: mvsas: Add PCI ID of RocketRaid 2640

2022-04-07T02:27:08+00:00

The HighPoint RocketRaid 2640 is a low-cost SAS controller based on Marvell chip. The chip in question was already supported by the kernel, just the PCI ID of this particular board was missing. Link: https://lore.kernel.org/r/20220309212535.402987-1-agalakhov@gmail.com Signed-off-by: Alexey Galakhov Signed-off-by: Martin K. Petersen

scsi: mvsas: Fix a set-but-not-used warning

2022-02-23T02:11:06+00:00

This patch fixes the following compiler warning: drivers/scsi/mvsas/mv_init.c: In function ‘mvs_pci_init’: drivers/scsi/mvsas/mv_init.c:497:30: warning: variable ‘mpi’ set but not used [-Wunused-but-set-variable] 497 | struct mvs_prv_info *mpi; | ^~~ Link: https://lore.kernel.org/r/20220218195117.25689-36-bvanassche@acm.org Reviewed-by: Johannes Thumshirn Reviewed-by: John Garry Reviewed-by: Hannes Reinecke Reviewed-by: Himanshu Madhani Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen

scsi: libsas: Add sas_abort_task()

2022-02-19T20:59:36+00:00

Add a generic implementation of abort task TMF handler, and use in LLDDs. With that, some LLDDs custom TMF functions can now be deleted. Link: https://lore.kernel.org/r/1645112566-115804-18-git-send-email-john.garry@huawei.com Tested-by: Yihang Li Tested-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: libsas: Add sas_query_task()

2022-02-19T20:59:36+00:00

Add a generic implementation of query task TMF handler, and use in LLDDs. Link: https://lore.kernel.org/r/1645112566-115804-17-git-send-email-john.garry@huawei.com Tested-by: Yihang Li Tested-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: libsas: Add sas_lu_reset()

2022-02-19T20:59:36+00:00

Add a generic implementation of LU reset TMF handler, and use in LLDDs. Link: https://lore.kernel.org/r/1645112566-115804-16-git-send-email-john.garry@huawei.com Tested-by: Yihang Li Tested-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: libsas: Add sas_clear_task_set()

2022-02-19T20:59:36+00:00

Add a generic implementation of clear task set TMF handler, and use in LLDDs. Link: https://lore.kernel.org/r/1645112566-115804-15-git-send-email-john.garry@huawei.com Tested-by: Yihang Li Tested-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: John Garry Signed-off-by: Martin K. Petersen

scsi: libsas: Add sas_abort_task_set()

2022-02-19T20:59:36+00:00

Add a generic implementation of abort task set TMF handler, and use in LLDDs. Link: https://lore.kernel.org/r/1645112566-115804-14-git-send-email-john.garry@huawei.com Tested-by: Yihang Li Tested-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: John Garry Signed-off-by: Martin K. Petersen