John Garry fab09aaee8 scsi: hisi_sas: Stop using queue #0 always for v2 hw ... In commit 8d98416a55 ("scsi: hisi_sas: Switch v3 hw to MQ"), the dispatch function was changed to choose the delivery queue based on the request tag HW queue index. This heavily degrades performance for v2 hw, since the HW queues are not exposed there, and, as such, HW queue #0 is used for every command. Revert to previous behaviour for when nr_hw_queues is not set, that being to choose the HW queue based on target device index. Link: https://lore.kernel.org/r/1602750425-240341-1-git-send-email-john.garry@huawei.com Fixes: 8d98416a55 ("scsi: hisi_sas: Switch v3 hw to MQ") Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>		2020-10-26 17:34:27 -04:00
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hisi_sas.h	SCSI misc on 20201013	2020-10-14 15:15:35 -07:00
hisi_sas_main.c	scsi: hisi_sas: Stop using queue #0 always for v2 hw	2020-10-26 17:34:27 -04:00
hisi_sas_v1_hw.c	scsi: hisi_sas: Add missing newlines	2020-09-02 22:49:08 -04:00
hisi_sas_v2_hw.c	scsi: hisi_sas: Code style cleanup	2020-09-02 22:49:08 -04:00
hisi_sas_v3_hw.c	SCSI misc on 20201013	2020-10-14 15:15:35 -07:00
Kconfig	scsi: hisi_sas: Add check for methods _PS0 and _PR0	2020-10-06 20:47:06 -04:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00