scsi: pm80xx: Fixed kernel panic during error recovery for SATA drive

Disabling the SATA drive interface cause kernel panic. When the drive
Interface is disabled, device should be deregistered after aborting all
pending I/Os. Also changed the port recovery timeout to 10000 ms for
PM8006 controller.

Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
此提交包含在:
Deepak Ukey
2019-07-09 15:30:48 +05:30
提交者 Martin K. Petersen
父節點 9b79ee9773
當前提交 196ba6629c
共有 3 個檔案被更改,包括 8 行新增2 行删除

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@@ -888,6 +888,8 @@ static void pm8001_dev_gone_notify(struct domain_device *dev)
spin_unlock_irqrestore(&pm8001_ha->lock, flags);
pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev ,
dev, 1, 0);
while (pm8001_dev->running_req)
msleep(20);
spin_lock_irqsave(&pm8001_ha->lock, flags);
}
PM8001_CHIP_DISP->dereg_dev_req(pm8001_ha, device_id);
@@ -1256,8 +1258,10 @@ int pm8001_abort_task(struct sas_task *task)
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("Waiting for Port reset\n"));
wait_for_completion(&completion_reset);
if (phy->port_reset_status)
if (phy->port_reset_status) {
pm8001_dev_gone_notify(dev);
goto out;
}
/*
* 4. SATA Abort ALL

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@@ -604,7 +604,7 @@ static void update_main_config_table(struct pm8001_hba_info *pm8001_ha)
pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer &=
0x0000ffff;
pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer |=
0x140000;
CHIP_8006_PORT_RECOVERY_TIMEOUT;
}
pm8001_mw32(address, MAIN_PORT_RECOVERY_TIMER,
pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer);

查看文件

@@ -230,6 +230,8 @@
#define SAS_MAX_AIP 0x200000
#define IT_NEXUS_TIMEOUT 0x7D0
#define PORT_RECOVERY_TIMEOUT ((IT_NEXUS_TIMEOUT/100) + 30)
/* Port recovery timeout, 10000 ms for PM8006 controller */
#define CHIP_8006_PORT_RECOVERY_TIMEOUT 0x640000
#ifdef __LITTLE_ENDIAN_BITFIELD
struct sas_identify_frame_local {