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scsi: arcmsr: simplify arcmsr_request_device_map routine 

Simplify arcmsr_request_device_map routine.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Ching Huang 2017-12-13 16:33:36 +08:00 коммит произвёл Martin K. Petersen
Родитель 1e9c81080d
Коммит 6ae9abe0bd
1 изменённых файлов: 48 добавлений и 149 удалений
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197
drivers/scsi/arcmsr/arcmsr_hba.c
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@ -122,9 +122,6 @@ static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
static void arcmsr_hbaA_flush_cache(struct AdapterControlBlock *acb);
static void arcmsr_hbaB_flush_cache(struct AdapterControlBlock *acb);
static void arcmsr_request_device_map(struct timer_list *t);
static void arcmsr_hbaA_request_device_map(struct AdapterControlBlock *acb);
static void arcmsr_hbaB_request_device_map(struct AdapterControlBlock *acb);
static void arcmsr_hbaC_request_device_map(struct AdapterControlBlock *acb);
static void arcmsr_message_isr_bh_fn(struct work_struct *work);
static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
@ -3789,159 +3786,61 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
}
}
static void arcmsr_hbaA_request_device_map(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
} else {
acb->fw_flag = FW_NORMAL;
if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)){
atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
if (atomic_dec_and_test(&acb->rq_map_token)) {
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
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;
}
static void arcmsr_hbaB_request_device_map(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
} else {
acb->fw_flag = FW_NORMAL;
if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
if (atomic_dec_and_test(&acb->rq_map_token)) {
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
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;
}
static void arcmsr_hbaC_request_device_map(struct AdapterControlBlock *acb)
{
struct MessageUnit_C __iomem *reg = acb->pmuC;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0) || ((acb->acb_flags & ACB_F_ABORT) != 0)) {
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
} else {
acb->fw_flag = FW_NORMAL;
if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
if (atomic_dec_and_test(&acb->rq_map_token)) {
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
}
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;
}
static void arcmsr_hbaD_request_device_map(struct AdapterControlBlock *acb)
{
struct MessageUnit_D *reg = acb->pmuD;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) ||
((acb->acb_flags & ACB_F_BUS_RESET) != 0) ||
((acb->acb_flags & ACB_F_ABORT) != 0)) {
mod_timer(&acb->eternal_timer,
jiffies + msecs_to_jiffies(6 * HZ));
} else {
acb->fw_flag = FW_NORMAL;
if (atomic_read(&acb->ante_token_value) ==
atomic_read(&acb->rq_map_token)) {
atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value,
atomic_read(&acb->rq_map_token));
if (atomic_dec_and_test(&acb->rq_map_token)) {
mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6 * HZ));
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));
}
}
static void arcmsr_hbaE_request_device_map(struct AdapterControlBlock *acb)
{
struct MessageUnit_E __iomem *reg = acb->pmuE;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) ||
((acb->acb_flags & ACB_F_BUS_RESET) != 0) ||
((acb->acb_flags & ACB_F_ABORT) != 0)) {
mod_timer(&acb->eternal_timer,
jiffies + msecs_to_jiffies(6 * HZ));
} else {
acb->fw_flag = FW_NORMAL;
if (atomic_read(&acb->ante_token_value) ==
atomic_read(&acb->rq_map_token)) {
atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value,
atomic_read(&acb->rq_map_token));
if (atomic_dec_and_test(&acb->rq_map_token)) {
mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6 * HZ));
return;
}
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));
}
}
static void arcmsr_request_device_map(struct timer_list *t)
{
struct AdapterControlBlock *acb = from_timer(acb, t, eternal_timer);
switch (acb->adapter_type) {
if (unlikely(atomic_read(&acb->rq_map_token) == 0) ||
(acb->acb_flags & ACB_F_BUS_RESET) ||
(acb->acb_flags & ACB_F_ABORT)) {
mod_timer(&acb->eternal_timer,
jiffies + msecs_to_jiffies(6 * HZ));
} else {
acb->fw_flag = FW_NORMAL;
if (atomic_read(&acb->ante_token_value) ==
atomic_read(&acb->rq_map_token)) {
atomic_set(&acb->rq_map_token, 16);
}
atomic_set(&acb->ante_token_value,
atomic_read(&acb->rq_map_token));
if (atomic_dec_and_test(&acb->rq_map_token)) {
mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6 * HZ));
return;
}
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
arcmsr_hbaA_request_device_map(acb);
}
break;
struct MessageUnit_A __iomem *reg = acb->pmuA;
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
break;
}
case ACB_ADAPTER_TYPE_B: {
arcmsr_hbaB_request_device_map(acb);
}
break;
struct MessageUnit_B *reg = acb->pmuB;
writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
break;
}
case ACB_ADAPTER_TYPE_C: {
arcmsr_hbaC_request_device_map(acb);
struct MessageUnit_C __iomem *reg = acb->pmuC;
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
break;
}
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, reg->inbound_msgaddr0);
break;
}
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
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);
break;
}
default:
return;
}
break;
case ACB_ADAPTER_TYPE_D:
arcmsr_hbaD_request_device_map(acb);
break;
case ACB_ADAPTER_TYPE_E:
arcmsr_hbaE_request_device_map(acb);
break;
acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
}
}