[SCSI] megaraid_sas: Continue booting immediately if FW in FAULT at driver load time

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

2 files changed, 13 insertions, 11 deletions

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 776d01988660..9d5a14a2c5b1 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -84,7 +84,7 @@ MODULE_VERSION(MEGASAS_VERSION);
 MODULE_AUTHOR("megaraidlinux@lsi.com");
 MODULE_DESCRIPTION("LSI MegaRAID SAS Driver");
 
-int megasas_transition_to_ready(struct megasas_instance *instance);
+int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
 static int megasas_get_pd_list(struct megasas_instance *instance);
 static int megasas_issue_init_mfi(struct megasas_instance *instance);
 static int megasas_register_aen(struct megasas_instance *instance,
@@ -2477,7 +2477,7 @@ process_fw_state_change_wq(struct work_struct *work)
                         msleep(1000);
                 }
 
-                if (megasas_transition_to_ready(instance)) {
+                if (megasas_transition_to_ready(instance, 1)) {
                         printk(KERN_NOTICE "megaraid_sas:adapter not ready\n");
 
                         megaraid_sas_kill_hba(instance);
@@ -2617,7 +2617,7 @@ static irqreturn_t megasas_isr(int irq, void *devp)
  * has to wait for the ready state.
  */
 int
-megasas_transition_to_ready(struct megasas_instance* instance)
+megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
 {
         int i;
         u8 max_wait;
@@ -2639,11 +2639,13 @@ megasas_transition_to_ready(struct megasas_instance* instance)
                 switch (fw_state) {
 
                 case MFI_STATE_FAULT:
-
                         printk(KERN_DEBUG "megasas: FW in FAULT state!!\n");
-                        max_wait = MEGASAS_RESET_WAIT_TIME;
-                        cur_state = MFI_STATE_FAULT;
-                        break;
+                        if (ocr) {
+                                max_wait = MEGASAS_RESET_WAIT_TIME;
+                                cur_state = MFI_STATE_FAULT;
+                                break;
+                        } else
+                                return -ENODEV;
 
                 case MFI_STATE_WAIT_HANDSHAKE:
                         /*
@@ -3520,7 +3522,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
         /*
          * We expect the FW state to be READY
          */
-        if (megasas_transition_to_ready(instance))
+        if (megasas_transition_to_ready(instance, 0))
                 goto fail_ready_state;
 
         /* Check if MSI-X is supported while in ready state */
@@ -4357,7 +4359,7 @@ megasas_resume(struct pci_dev *pdev)
         /*
          * We expect the FW state to be READY
          */
-        if (megasas_transition_to_ready(instance))
+        if (megasas_transition_to_ready(instance, 0))
                 goto fail_ready_state;
 
         /* Now re-enable MSI-X */
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index f13e7abd345a..392b49d93b55 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -89,7 +89,7 @@ u8 MR_ValidateMapInfo(struct MR_FW_RAID_MAP_ALL *map,
                       struct LD_LOAD_BALANCE_INFO *lbInfo);
 u16 get_updated_dev_handle(struct LD_LOAD_BALANCE_INFO *lbInfo,
                            struct IO_REQUEST_INFO *in_info);
-int megasas_transition_to_ready(struct megasas_instance *instance);
+int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
 void megaraid_sas_kill_hba(struct megasas_instance *instance);
 
 extern u32 megasas_dbg_lvl;
@@ -2173,7 +2173,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
                         }
 
                         /* Wait for FW to become ready */
-                        if (megasas_transition_to_ready(instance)) {
+                        if (megasas_transition_to_ready(instance, 1)) {
                                 printk(KERN_WARNING "megaraid_sas: Failed to "
                                        "transition controller to ready.\n");
                                 continue;