diff options
| author | Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com> | 2018-12-19 02:39:07 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-12-20 06:27:52 +0300 |
| commit | 4fd22c13ad4409ee44a121b54855bb48d2afd58a (patch) | |
| tree | 12654a739003b43b0bd59400eea1d852cbd59b41 /drivers/scsi/smartpqi/smartpqi_sis.c | |
| parent | 65111785acccb836ec75263b03b0e33f21e74f47 (diff) | |
| download | linux-4fd22c13ad4409ee44a121b54855bb48d2afd58a.tar.xz | |
scsi: smartpqi: add ofa support
- when OFA event occurs, driver will stop traffic to RAID/HBA path. Driver
waits for all the outstanding requests to complete.
- Driver sends OFA event acknowledgment to firmware.
- Driver will wait until the new firmware is up and running.
- Driver will free up the resources.
- Driver calls SIS/PQI initialization and rescans the device list.
- Driver will resume the traffic to RAID/HBA path.
Reviewed-by: Murthy Bhat <murthy.bhat@microsemi.com>
Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/smartpqi/smartpqi_sis.c')
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_sis.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_sis.c b/drivers/scsi/smartpqi/smartpqi_sis.c index 9d3043df22af..dcd11c6418cc 100644 --- a/drivers/scsi/smartpqi/smartpqi_sis.c +++ b/drivers/scsi/smartpqi/smartpqi_sis.c @@ -34,6 +34,7 @@ #define SIS_REENABLE_SIS_MODE 0x1 #define SIS_ENABLE_MSIX 0x40 #define SIS_ENABLE_INTX 0x80 +#define SIS_SOFT_RESET 0x100 #define SIS_CMD_READY 0x200 #define SIS_TRIGGER_SHUTDOWN 0x800000 #define SIS_PQI_RESET_QUIESCE 0x1000000 @@ -90,7 +91,7 @@ static int sis_wait_for_ctrl_ready_with_timeout(struct pqi_ctrl_info *ctrl_info, unsigned long timeout; u32 status; - timeout = (timeout_secs * HZ) + jiffies; + timeout = (timeout_secs * PQI_HZ) + jiffies; while (1) { status = readl(&ctrl_info->registers->sis_firmware_status); @@ -202,7 +203,7 @@ static int sis_send_sync_cmd(struct pqi_ctrl_info *ctrl_info, * the top of the loop in order to give the controller time to start * processing the command before we start polling. */ - timeout = (SIS_CMD_COMPLETE_TIMEOUT_SECS * HZ) + jiffies; + timeout = (SIS_CMD_COMPLETE_TIMEOUT_SECS * PQI_HZ) + jiffies; while (1) { msleep(SIS_CMD_COMPLETE_POLL_INTERVAL_MSECS); doorbell = readl(®isters->sis_ctrl_to_host_doorbell); @@ -348,7 +349,7 @@ static int sis_wait_for_doorbell_bit_to_clear( u32 doorbell_register; unsigned long timeout; - timeout = (SIS_DOORBELL_BIT_CLEAR_TIMEOUT_SECS * HZ) + jiffies; + timeout = (SIS_DOORBELL_BIT_CLEAR_TIMEOUT_SECS * PQI_HZ) + jiffies; while (1) { doorbell_register = @@ -420,6 +421,12 @@ u32 sis_read_driver_scratch(struct pqi_ctrl_info *ctrl_info) return readl(&ctrl_info->registers->sis_driver_scratch); } +void sis_soft_reset(struct pqi_ctrl_info *ctrl_info) +{ + writel(SIS_SOFT_RESET, + &ctrl_info->registers->sis_host_to_ctrl_doorbell); +} + static void __attribute__((unused)) verify_structures(void) { BUILD_BUG_ON(offsetof(struct sis_base_struct, |