Mahesh Rajashekhara c5641494cd scsi: smartpqi: Fix DMA direction for RAID requests ... [ Upstream commit 69695aeaa6 ] Correct a SOP READ and WRITE DMA flags for some requests. This update corrects DMA direction issues with SCSI commands removed from the controller's internal lookup table. Currently, SCSI READ BLOCK LIMITS (0x5) was removed from the controller lookup table and exposed a DMA direction flag issue. SCSI READ BLOCK LIMITS was recently removed from our controller lookup table so the controller uses the respective IU flag field to set the DMA data direction. Since the DMA direction is incorrect the FW never completes the request causing a hang. Some SCSI commands which use SCSI READ BLOCK LIMITS * sg_map * mt -f /dev/stX status After updating controller firmware, users may notice their tape units failing. This patch resolves the issue. Also, the AIO path DMA direction is correct. The DMA direction flag is a day-one bug with no reported BZ. Fixes: 6c223761eb ("smartpqi: initial commit of Microsemi smartpqi driver") Link: https://lore.kernel.org/r/165730605618.177165.9054223644512926624.stgit@brunhilda Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-08-17 14:23:51 +02:00
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Kconfig	scsi: smartpqi: Change Kconfig menu entry to Microchip	2021-07-19 22:00:56 -04:00
Makefile	scsi: smartpqi: add spdx	2019-03-18 16:48:28 -04:00
smartpqi.h	scsi: smartpqi: Replace one-element array with flexible-array member	2021-08-17 22:28:39 -04:00
smartpqi_init.c	scsi: smartpqi: Fix DMA direction for RAID requests	2022-08-17 14:23:51 +02:00
smartpqi_sas_transport.c	scsi: smartpqi: Update copyright notices	2021-07-19 22:00:56 -04:00
smartpqi_sis.c	scsi: smartpqi: Add controller handshake during kdump	2021-11-25 09:48:27 +01:00
smartpqi_sis.h	scsi: smartpqi: Add controller handshake during kdump	2021-11-25 09:48:27 +01:00