diff options
| author | Ching Huang <ching2048@areca.com.tw> | 2018-03-15 14:37:40 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-03-21 18:46:30 -0400 |
| commit | c2c62ebca18bc48cb7312f519e132b79cf42ea0e (patch) | |
| tree | b94281852b9d5456d6853a025ed70ac5685d6c45 /drivers/scsi | |
| parent | c4c1adb3490ea4b8b13da2dae8d563350ded4988 (diff) | |
| download | linux-c2c62ebca18bc48cb7312f519e132b79cf42ea0e.tar.bz2 | |
scsi: arcmsr: Sleep to avoid CPU stuck too long for waiting adapter ready
Sleep to avoid CPU stuck too long for waiting adapter ready.
Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/arcmsr/arcmsr_hba.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 2f52c53e4faa..732b5d9242f1 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -3807,6 +3807,8 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb) case ACB_ADAPTER_TYPE_A: { struct MessageUnit_A __iomem *reg = acb->pmuA; do { + if (!(acb->acb_flags & ACB_F_IOP_INITED)) + msleep(20); firmware_state = readl(®->outbound_msgaddr1); } while ((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0); } @@ -3815,6 +3817,8 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb) case ACB_ADAPTER_TYPE_B: { struct MessageUnit_B *reg = acb->pmuB; do { + if (!(acb->acb_flags & ACB_F_IOP_INITED)) + msleep(20); firmware_state = readl(reg->iop2drv_doorbell); } while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) == 0); writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell); @@ -3823,6 +3827,8 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb) case ACB_ADAPTER_TYPE_C: { struct MessageUnit_C __iomem *reg = acb->pmuC; do { + if (!(acb->acb_flags & ACB_F_IOP_INITED)) + msleep(20); firmware_state = readl(®->outbound_msgaddr1); } while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0); } @@ -3830,6 +3836,8 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb) case ACB_ADAPTER_TYPE_D: { struct MessageUnit_D *reg = acb->pmuD; do { + if (!(acb->acb_flags & ACB_F_IOP_INITED)) + msleep(20); firmware_state = readl(reg->outbound_msgaddr1); } while ((firmware_state & ARCMSR_ARC1214_MESSAGE_FIRMWARE_OK) == 0); @@ -3838,6 +3846,8 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb) case ACB_ADAPTER_TYPE_E: { struct MessageUnit_E __iomem *reg = acb->pmuE; do { + if (!(acb->acb_flags & ACB_F_IOP_INITED)) + msleep(20); firmware_state = readl(®->outbound_msgaddr1); } while ((firmware_state & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0); } |