linux_dsm_epyc7002/drivers/scsi/hisi_sas
Luo Jiaxing 2c4d582322 scsi: hisi_sas: Add BIST support for phy FFE
Add BIST support for phy FFE (Feed forward equalizer) setting. The user can
configure FFE through the new debugfs interface.

FFE is a parameter used for link layer control. It will affect the link
quality between the SAS controller and the backplane. In the BIST test, the
FFE interface is provided to assist board testers in optimizing link
parameters.

The modification of the FFE parameter will affect the test after BIST or
the normal running of the board. The user should save the initial FFE
values and restore them after BIST test is complete.

Link: https://lore.kernel.org/r/1598958790-232272-6-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-02 22:49:08 -04:00
..
hisi_sas_main.c scsi: hisi_sas: Add BIST support for phy FFE 2020-09-02 22:49:08 -04:00
hisi_sas_v1_hw.c SCSI misc on 20200806 2020-08-06 16:50:07 -07:00
hisi_sas_v2_hw.c SCSI misc on 20200806 2020-08-06 16:50:07 -07:00
hisi_sas_v3_hw.c scsi: hisi_sas: Add BIST support for phy FFE 2020-09-02 22:49:08 -04:00
hisi_sas.h scsi: hisi_sas: Add BIST support for phy FFE 2020-09-02 22:49:08 -04:00
Kconfig scsi: hisi_sas: Fix build error without SATA_HOST 2020-04-13 13:28:13 -04:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00