linux-kernel - [PATCH][V2] scsi: smartpqi: Enable sas_address sysfs for SATA device type.

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Message-Id: <20211021062239.185327-1-jiping.ma2@windriver.com>
Date:   Wed, 20 Oct 2021 23:22:39 -0700
From:   Jiping Ma <jiping.ma2@...driver.com>
To:     jejb@...ux.ibm.com, martin.petersen@...cle.com,
        scott.benesh@...rochip.com, don.brace@...rochip.com,
        scott.teel@...rochip.com, kevin.barnett@...rochip.com,
        Murthy.Bhat@...rochip.com, jiping.ma2@...driver.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        yue.tao@...driver.com
Subject: [PATCH][V2] scsi: smartpqi: Enable sas_address sysfs for SATA device type.

We met the issue DM complains that it can't find the disk specified
in the deployment config file after we updated the Linux kernel to 5.10.
The error is "failed to find disk for path /dev/disk/by-path/
pci-0000:3b:00.0-sas-0x31402ec001d92983-lun-0"

This happens because device type SATA is excluded from being
processed with the function pqi_is_device_with_sas_address.
which causes all SATA type disk drives to appear the same, having
zeroes in the lun name. /dev/disk/by-path/
pci-0000:3b:00.0-sas-0x0000000000000000-lun-0

We can add type SA_DEVICE_TYPE_SATA to class device_with_sas_address,
since it will also get the sas_address from wwid. and works transparently
with the old kernel without gaps.

Signed-off-by: Jiping Ma <jiping.ma2@...driver.com>
---
 drivers/scsi/smartpqi/smartpqi_init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index ecb2af3f43ca..df16e0a27a41 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -2101,6 +2101,7 @@ static inline void pqi_mask_device(u8 *scsi3addr)
 static inline bool pqi_is_device_with_sas_address(struct pqi_scsi_dev *device)
 {
 	switch (device->device_type) {
+	case SA_DEVICE_TYPE_SATA:
 	case SA_DEVICE_TYPE_SAS:
 	case SA_DEVICE_TYPE_EXPANDER_SMP:
 	case SA_DEVICE_TYPE_SES:
-- 
2.31.1