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[SCSI] megaraid_sas: use the firmware boot timeout when waiting for commands 

use the constant MEGASAS_RESET_WAIT_TIME when waiting for firmware
commands to complete (currently 3 minutes).

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Yang, Bo 2009-10-06 14:52:20 -06:00 committed by James Bottomley
parent 7b2519afa1
commit 7218df69e3
1 changed files with 17 additions and 11 deletions
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28
drivers/scsi/megaraid/megaraid_sas.c
View File

@ -1820,6 +1820,7 @@ megasas_transition_to_ready(struct megasas_instance* instance)
u8 max_wait;
u32 fw_state;
u32 cur_state;
u32 abs_state, curr_abs_state;
fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
@ -1829,6 +1830,9 @@ megasas_transition_to_ready(struct megasas_instance* instance)
while (fw_state != MFI_STATE_READY) {
abs_state =
instance->instancet->read_fw_status_reg(instance->reg_set);
switch (fw_state) {
case MFI_STATE_FAULT:
@ -1854,7 +1858,7 @@ megasas_transition_to_ready(struct megasas_instance* instance)
&instance->reg_set->inbound_doorbell);
}
max_wait = 2;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_WAIT_HANDSHAKE;
break;
@ -1869,7 +1873,7 @@ megasas_transition_to_ready(struct megasas_instance* instance)
writel(MFI_INIT_HOTPLUG,
&instance->reg_set->inbound_doorbell);
max_wait = 10;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_BOOT_MESSAGE_PENDING;
break;
@ -1888,7 +1892,7 @@ megasas_transition_to_ready(struct megasas_instance* instance)
writel(MFI_RESET_FLAGS,
&instance->reg_set->inbound_doorbell);
max_wait = 60;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_OPERATIONAL;
break;
@ -1896,32 +1900,32 @@ megasas_transition_to_ready(struct megasas_instance* instance)
/*
* This state should not last for more than 2 seconds
*/
max_wait = 2;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_UNDEFINED;
break;
case MFI_STATE_BB_INIT:
max_wait = 2;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_BB_INIT;
break;
case MFI_STATE_FW_INIT:
max_wait = 20;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_FW_INIT;
break;
case MFI_STATE_FW_INIT_2:
max_wait = 20;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_FW_INIT_2;
break;
case MFI_STATE_DEVICE_SCAN:
max_wait = 20;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_DEVICE_SCAN;
break;
case MFI_STATE_FLUSH_CACHE:
max_wait = 20;
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_FLUSH_CACHE;
break;
@ -1937,8 +1941,10 @@ megasas_transition_to_ready(struct megasas_instance* instance)
for (i = 0; i < (max_wait * 1000); i++) {
fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) &
MFI_STATE_MASK ;
curr_abs_state =
instance->instancet->read_fw_status_reg(instance->reg_set);
if (fw_state == cur_state) {
if (abs_state == curr_abs_state) {
msleep(1);
} else
break;
@ -1947,7 +1953,7 @@ megasas_transition_to_ready(struct megasas_instance* instance)
/*
* Return error if fw_state hasn't changed after max_wait
*/
if (fw_state == cur_state) {
if (curr_abs_state == abs_state) {
printk(KERN_DEBUG "FW state [%d] hasn't changed "
"in %d secs\n", fw_state, max_wait);
return -ENODEV;