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linux/drivers/scsi/libsas
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Yihang Li 684500f29f scsi: libsas: Align SMP request allocation to ARCH_DMA_MINALIGN 
[ Upstream commit e675a4fd6d ]

This series [1] reduced the kmalloc() minimum alignment on arm64 to 8 bytes
(from 128). In libsas, this will cause SMP requests to be 8-byte aligned
through kmalloc() allocation. However, for hisi_sas hardware, all command
addresses must be 16-byte-aligned. Otherwise, the commands fail to be
executed.

ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA
operations, so use ARCH_DMA_MINALIGN as the alignment for SMP request.

Link: https://lkml.kernel.org/r/20230612153201.554742-1-catalin.marinas@arm.com [1]
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Link: https://lore.kernel.org/r/20240328090626.621147-1-liyihang9@huawei.com
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-17 12:02:12 +02:00
..
Kconfig scsi: libsas: Drop BLK_DEV_BSGLIB selection 2021-07-27 00:06:42 -04:00
Makefile scsi: libsas: Allow libsas to include SCSI header files directly 2021-07-20 23:11:17 -04:00
sas_ata.c ata changes for 6.6 2023-09-05 12:37:28 -07:00
sas_discover.c ata changes for 6.6 2023-09-05 12:37:28 -07:00
sas_event.c scsi: libsas: Use bool for queue_work() return code 2022-02-27 21:48:30 -05:00
sas_expander.c scsi: libsas: Align SMP request allocation to ARCH_DMA_MINALIGN 2024-05-17 12:02:12 +02:00
sas_host_smp.c scsi: libsas: Delete struct scsi_core 2023-08-21 17:50:58 -04:00
sas_init.c scsi: libsas: Delete struct scsi_core 2023-08-21 17:50:58 -04:00
sas_internal.h scsi: libsas: Delete enum sas_class 2023-08-21 17:50:57 -04:00
sas_phy.c scsi: libsas: Delete struct scsi_core 2023-08-21 17:50:58 -04:00
sas_port.c scsi: libsas: Delete struct scsi_core 2023-08-21 17:50:58 -04:00
sas_scsi_host.c scsi: libsas: Simplify sas_queue_reset() and remove unused code 2023-08-30 21:24:50 -04:00
sas_task.c scsi: libsas: Use enum for response frame DATAPRES field 2022-02-19 15:59:34 -05:00