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[SCSI] megaraid_sas: Check MFI_REG_STATE.fault.resetAdapter 

The following patch for megaraid_sas fixes the function
megasas_reset_fusion() and makes the reset code check
MFI_REG_STATE.fault.resetAdapter.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
This commit is contained in:
adam radford 2011-05-11 18:34:08 -07:00 committed by James Bottomley
parent 70d031f36f
commit 7e70e73365
2 changed files with 18 additions and 12 deletions
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4
drivers/scsi/megaraid/megaraid_sas.h
View File

@ -76,8 +76,8 @@
#define MFI_STATE_READY 0xB0000000
#define MFI_STATE_OPERATIONAL 0xC0000000
#define MFI_STATE_FAULT 0xF0000000
#define MFI_RESET_REQUIRED 0x00000001
#define MFI_RESET_REQUIRED 0x00000001
#define MFI_RESET_ADAPTER 0x00000002
#define MEGAMFI_FRAME_SIZE 64
/*

26
drivers/scsi/megaraid/megaraid_sas_fusion.c
View File

@ -2010,17 +2010,11 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
struct fusion_context *fusion;
struct megasas_cmd *cmd_mfi;
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
u32 host_diag, abs_state;
u32 host_diag, abs_state, status_reg, reset_adapter;
instance = (struct megasas_instance *)shost->hostdata;
fusion = instance->ctrl_context;
mutex_lock(&instance->reset_mutex);
set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
instance->instancet->disable_intr(instance->reg_set);
msleep(1000);
if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
printk(KERN_WARNING "megaraid_sas: Hardware critical error, "
"returning FAILED.\n");
@ -2028,6 +2022,12 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
goto out;
}
mutex_lock(&instance->reset_mutex);
set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
instance->instancet->disable_intr(instance->reg_set);
msleep(1000);
/* First try waiting for commands to complete */
if (megasas_wait_for_outstanding_fusion(instance)) {
printk(KERN_WARNING "megaraid_sas: resetting fusion "
@ -2044,7 +2044,12 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
}
}
if (instance->disableOnlineCtrlReset == 1) {
status_reg = instance->instancet->read_fw_status_reg(
instance->reg_set);
abs_state = status_reg & MFI_STATE_MASK;
reset_adapter = status_reg & MFI_RESET_ADAPTER;
if (instance->disableOnlineCtrlReset ||
(abs_state == MFI_STATE_FAULT && !reset_adapter)) {
/* Reset not supported, kill adapter */
printk(KERN_WARNING "megaraid_sas: Reset not supported"
", killing adapter.\n");
@ -2073,6 +2078,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
/* Check that the diag write enable (DRWE) bit is on */
host_diag = readl(&instance->reg_set->fusion_host_diag);
retry = 0;
while (!(host_diag & HOST_DIAG_WRITE_ENABLE)) {
msleep(100);
host_diag =
@ -2110,7 +2116,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
abs_state =
instance->instancet->read_fw_status_reg(
instance->reg_set);
instance->reg_set) & MFI_STATE_MASK;
retry = 0;
while ((abs_state <= MFI_STATE_FW_INIT) &&
@ -2118,7 +2124,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
msleep(100);
abs_state =
instance->instancet->read_fw_status_reg(
instance->reg_set);
instance->reg_set) & MFI_STATE_MASK;
}
if (abs_state <= MFI_STATE_FW_INIT) {
printk(KERN_WARNING "megaraid_sas: firmware "