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authorChing Huang <ching2048@areca.com.tw>2018-03-15 14:37:40 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2018-03-21 18:46:30 -0400
commitc2c62ebca18bc48cb7312f519e132b79cf42ea0e (patch)
treeb94281852b9d5456d6853a025ed70ac5685d6c45 /drivers/scsi
parentc4c1adb3490ea4b8b13da2dae8d563350ded4988 (diff)
downloadlinux-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.c10
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(&reg->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(&reg->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(&reg->outbound_msgaddr1);
} while ((firmware_state & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0);
}