From: Kevin Barnett <kevin.barnett@microchip.com>
Date: Tue, 1 Feb 2022 15:48:53 -0600
Subject: scsi: smartpqi: Expose SAS address for SATA drives
Patch-mainline: v5.18-rc1
Git-commit: 00598b056aa6d46c7a6819efa850ec9d0d690d76
References: jsc#PED-1557
Remove UNIQUE_WWID_IN_REPORT_PHYS_LUN PQI feature.
This feature was originally added to solve a problem with NVMe drives, but
this problem has since been solved a different way, so this PQI feature is
no longer required for any type of drive.
The kernel was not creating symbolic links in sysfs between SATA drives and
their enclosure.
The driver was enabling the UNIQUE_WWID_IN_REPORT_PHYS_LUN PQI feature,
which causes the FW to return a WWID for SATA drives that is derived from a
unique ID read from the SATA drive itself. The driver was exposing this
WWID as the drive's SAS address. However, because this SAS address does not
match the SAS address returned by an enclosure's SES Page 0xA data, the
Linux kernel was not able to match a SATA drive with its enclosure.
Link: https://lore.kernel.org/r/164375213346.440833.12379222470149882747.stgit@brunhilda.pdev.net
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Martin Wilck <mwilck@suse.com>
---
drivers/scsi/smartpqi/smartpqi.h | 2 -
drivers/scsi/smartpqi/smartpqi_init.c | 43 ++--------------------------------
2 files changed, 3 insertions(+), 42 deletions(-)
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -1141,7 +1141,6 @@ struct pqi_scsi_dev {
struct pqi_stream_data stream_data[NUM_STREAMS_PER_LUN];
atomic_t scsi_cmds_outstanding;
atomic_t raid_bypass_cnt;
- u8 page_83_identifier[16];
};
/* VPD inquiry pages */
@@ -1331,7 +1330,6 @@ struct pqi_ctrl_info {
u8 soft_reset_handshake_supported : 1;
u8 raid_iu_timeout_supported : 1;
u8 tmf_iu_timeout_supported : 1;
- u8 unique_wwid_in_report_phys_lun_supported : 1;
u8 firmware_triage_supported : 1;
u8 rpl_extended_format_4_5_supported : 1;
u8 enable_r1_writes : 1;
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -1588,9 +1588,6 @@ static int pqi_get_physical_device_info(
sizeof(device->phys_connector));
device->bay = id_phys->phys_bay_in_box;
- memcpy(&device->page_83_identifier, &id_phys->page_83_identifier,
- sizeof(device->page_83_identifier));
-
if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) &&
id_phys->phy_count)
device->phy_id =
@@ -2281,18 +2278,6 @@ static inline void pqi_mask_device(u8 *s
scsi3addr[3] |= 0xc0;
}
-static inline bool pqi_is_device_with_sas_address(struct pqi_scsi_dev *device)
-{
- switch (device->device_type) {
- case SA_DEVICE_TYPE_SAS:
- case SA_DEVICE_TYPE_EXPANDER_SMP:
- case SA_DEVICE_TYPE_SES:
- return true;
- }
-
- return false;
-}
-
static inline bool pqi_is_multipath_device(struct pqi_scsi_dev *device)
{
if (pqi_is_logical_device(device))
@@ -2306,17 +2291,6 @@ static inline bool pqi_expose_device(str
return !device->is_physical_device || !pqi_skip_device(device->scsi3addr);
}
-static inline void pqi_set_physical_device_wwid(struct pqi_ctrl_info *ctrl_info,
- struct pqi_scsi_dev *device, struct report_phys_lun_16byte_wwid *phys_lun)
-{
- if (ctrl_info->unique_wwid_in_report_phys_lun_supported ||
- ctrl_info->rpl_extended_format_4_5_supported ||
- pqi_is_device_with_sas_address(device))
- memcpy(device->wwid, phys_lun->wwid, sizeof(device->wwid));
- else
- memcpy(&device->wwid[8], device->page_83_identifier, 8);
-}
-
static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
{
int i;
@@ -2484,7 +2458,7 @@ static int pqi_update_scsi_devices(struc
pqi_assign_bus_target_lun(device);
if (device->is_physical_device) {
- pqi_set_physical_device_wwid(ctrl_info, device, phys_lun);
+ memcpy(device->wwid, phys_lun->wwid, sizeof(device->wwid));
if ((phys_lun->device_flags &
CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) &&
phys_lun->aio_handle) {
@@ -2497,8 +2471,7 @@ static int pqi_update_scsi_devices(struc
sizeof(device->volume_id));
}
- if (pqi_is_device_with_sas_address(device))
- device->sas_address = get_unaligned_be64(&device->wwid[8]);
+ device->sas_address = get_unaligned_be64(&device->wwid[8]);
new_device_list[num_valid_devices++] = device;
}
@@ -7087,7 +7060,7 @@ static ssize_t pqi_sas_address_show(stru
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
device = sdev->hostdata;
- if (!device || !pqi_is_device_with_sas_address(device)) {
+ if (!device) {
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
return -ENODEV;
}
@@ -7643,10 +7616,6 @@ static void pqi_ctrl_update_feature_flag
case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT:
ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled;
break;
- case PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN:
- ctrl_info->unique_wwid_in_report_phys_lun_supported =
- firmware_feature->enabled;
- break;
case PQI_FIRMWARE_FEATURE_FW_TRIAGE:
ctrl_info->firmware_triage_supported = firmware_feature->enabled;
pqi_save_fw_triage_setting(ctrl_info, firmware_feature->enabled);
@@ -7745,11 +7714,6 @@ static struct pqi_firmware_feature pqi_f
.feature_status = pqi_firmware_feature_status,
},
{
- .feature_name = "Unique WWID in Report Physical LUN",
- .feature_bit = PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN,
- .feature_status = pqi_ctrl_update_feature_flags,
- },
- {
.feature_name = "Firmware Triage",
.feature_bit = PQI_FIRMWARE_FEATURE_FW_TRIAGE,
.feature_status = pqi_ctrl_update_feature_flags,
@@ -7858,7 +7822,6 @@ static void pqi_ctrl_reset_config(struct
ctrl_info->enable_r6_writes = false;
ctrl_info->raid_iu_timeout_supported = false;
ctrl_info->tmf_iu_timeout_supported = false;
- ctrl_info->unique_wwid_in_report_phys_lun_supported = false;
ctrl_info->firmware_triage_supported = false;
ctrl_info->rpl_extended_format_4_5_supported = false;
}