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Subject[PATCH 8/13] scsi: arcmsr: add ACB_F_MSG_GET_CONFIG to acb->acb_flags for for message interrupt checking before schedule work for get device map
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From: Ching Huang <ching2048@areca.com.tw>

add ACB_F_MSG_GET_CONFIG to acb->acb_flags for for message interrupt checking before schedule work for get device map

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
---

diff -uprN a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h
--- a/drivers/scsi/arcmsr/arcmsr.h 2017-08-04 18:12:54.000000000 +0800
+++ b/drivers/scsi/arcmsr/arcmsr.h 2017-08-04 18:39:18.000000000 +0800
@@ -787,6 +787,7 @@ struct AdapterControlBlock
/* iop init */
#define ACB_F_ABORT 0x0200
#define ACB_F_FIRMWARE_TRAP 0x0400
+ #define ACB_F_MSG_GET_CONFIG 0x1000
struct CommandControlBlock * pccb_pool[ARCMSR_MAX_FREECCB_NUM];
/* used for memory free */
struct list_head ccb_free_list;
diff -uprN a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
--- a/drivers/scsi/arcmsr/arcmsr_hba.c 2017-11-08 18:52:48.000000000 +0800
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c 2017-11-08 18:53:30.000000000 +0800
@@ -743,6 +743,7 @@ static void arcmsr_message_isr_bh_fn(str
struct scsi_device *psdev;
char diff, temp;

+ acb->acb_flags &= ~ACB_F_MSG_GET_CONFIG;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
@@ -2332,7 +2333,8 @@ static void arcmsr_hbaA_message_isr(stru
struct MessageUnit_A __iomem *reg = acb->pmuA;
/*clear interrupt and message state*/
writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, &reg->outbound_intstatus);
- schedule_work(&acb->arcmsr_do_message_isr_bh);
+ if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+ schedule_work(&acb->arcmsr_do_message_isr_bh);
}
static void arcmsr_hbaB_message_isr(struct AdapterControlBlock *acb)
{
@@ -2340,7 +2342,8 @@ static void arcmsr_hbaB_message_isr(stru

/*clear interrupt and message state*/
writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
- schedule_work(&acb->arcmsr_do_message_isr_bh);
+ if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+ schedule_work(&acb->arcmsr_do_message_isr_bh);
}
/*
**********************************************************************************
@@ -2356,7 +2359,8 @@ static void arcmsr_hbaC_message_isr(stru
struct MessageUnit_C __iomem *reg = acb->pmuC;
/*clear interrupt and message state*/
writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &reg->outbound_doorbell_clear);
- schedule_work(&acb->arcmsr_do_message_isr_bh);
+ if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+ schedule_work(&acb->arcmsr_do_message_isr_bh);
}

static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb)
@@ -2365,7 +2369,8 @@ static void arcmsr_hbaD_message_isr(stru

writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE, reg->outbound_doorbell);
readl(reg->outbound_doorbell);
- schedule_work(&acb->arcmsr_do_message_isr_bh);
+ if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+ schedule_work(&acb->arcmsr_do_message_isr_bh);
}

static void arcmsr_hbaE_message_isr(struct AdapterControlBlock *acb)
@@ -2373,7 +2378,8 @@ static void arcmsr_hbaE_message_isr(stru
struct MessageUnit_E __iomem *reg = acb->pmuE;

writel(0, &reg->host_int_status);
- schedule_work(&acb->arcmsr_do_message_isr_bh);
+ if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+ schedule_work(&acb->arcmsr_do_message_isr_bh);
}

static int arcmsr_hbaA_handle_isr(struct AdapterControlBlock *acb)
@@ -3830,6 +3836,7 @@ static void arcmsr_hbaA_request_device_m
return;
}
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+ acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
}
return;
@@ -3852,6 +3859,7 @@ static void arcmsr_hbaB_request_device_m
return;
}
writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
+ acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
}
return;
@@ -3875,6 +3883,7 @@ static void arcmsr_hbaC_request_device_m
}
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
+ acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
}
return;
@@ -3904,6 +3913,7 @@ static void arcmsr_hbaD_request_device_m
}
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG,
reg->inbound_msgaddr0);
+ acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6 * HZ));
}
@@ -3934,6 +3944,7 @@ static void arcmsr_hbaE_request_device_m
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(acb->out_doorbell, &reg->iobound_doorbell);
+ acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6 * HZ));
}

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