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authoradam radford <aradford@gmail.com>2011-02-24 20:57:15 -0800
committerJames Bottomley <James.Bottomley@suse.de>2011-02-28 12:04:14 -0600
commitebf054b00b0a6dfa81dc4472d8b19301318b7f47 (patch)
tree9043de5cb98203203b5335332e2a12df4fcae84a /drivers/scsi
parent42a8d2b34d107df34533ea4840daf8d62bdc90aa (diff)
[SCSI] megaraid_sas: Fix iMR OCR support to work correctly
Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_base.c62
1 files changed, 37 insertions, 25 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 960b88cb4ff6..970d635574b3 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -134,7 +134,11 @@ spinlock_t poll_aen_lock;
void
megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
u8 alt_status);
-
+static u32
+megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
+static int
+megasas_adp_reset_gen2(struct megasas_instance *instance,
+ struct megasas_register_set __iomem *reg_set);
static irqreturn_t megasas_isr(int irq, void *devp);
static u32
megasas_init_adapter_mfi(struct megasas_instance *instance);
@@ -554,6 +558,8 @@ static int
megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
{
u32 status;
+ u32 mfiStatus = 0;
+
/*
* Check if it is our interrupt
*/
@@ -564,6 +570,15 @@ megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
}
/*
+ * Check if it is our interrupt
+ */
+ if ((megasas_read_fw_status_reg_gen2(regs) & MFI_STATE_MASK) ==
+ MFI_STATE_FAULT) {
+ mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
+ } else
+ mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
+
+ /*
* Clear the interrupt by writing back the same value
*/
writel(status, &regs->outbound_intr_status);
@@ -573,7 +588,7 @@ megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
*/
readl(&regs->outbound_intr_status);
- return 1;
+ return mfiStatus;
}
/**
@@ -597,17 +612,6 @@ megasas_fire_cmd_skinny(struct megasas_instance *instance,
}
/**
- * megasas_adp_reset_skinny - For controller reset
- * @regs: MFI register set
- */
-static int
-megasas_adp_reset_skinny(struct megasas_instance *instance,
- struct megasas_register_set __iomem *regs)
-{
- return 0;
-}
-
-/**
* megasas_check_reset_skinny - For controller reset check
* @regs: MFI register set
*/
@@ -625,7 +629,7 @@ static struct megasas_instance_template megasas_instance_template_skinny = {
.disable_intr = megasas_disable_intr_skinny,
.clear_intr = megasas_clear_intr_skinny,
.read_fw_status_reg = megasas_read_fw_status_reg_skinny,
- .adp_reset = megasas_adp_reset_skinny,
+ .adp_reset = megasas_adp_reset_gen2,
.check_reset = megasas_check_reset_skinny,
.service_isr = megasas_isr,
.tasklet = megasas_complete_cmd_dpc,
@@ -740,20 +744,28 @@ megasas_adp_reset_gen2(struct megasas_instance *instance,
{
u32 retry = 0 ;
u32 HostDiag;
+ u32 *seq_offset = &reg_set->seq_offset;
+ u32 *hostdiag_offset = &reg_set->host_diag;
+
+ if (instance->instancet == &megasas_instance_template_skinny) {
+ seq_offset = &reg_set->fusion_seq_offset;
+ hostdiag_offset = &reg_set->fusion_host_diag;
+ }
+
+ writel(0, seq_offset);
+ writel(4, seq_offset);
+ writel(0xb, seq_offset);
+ writel(2, seq_offset);
+ writel(7, seq_offset);
+ writel(0xd, seq_offset);
- writel(0, &reg_set->seq_offset);
- writel(4, &reg_set->seq_offset);
- writel(0xb, &reg_set->seq_offset);
- writel(2, &reg_set->seq_offset);
- writel(7, &reg_set->seq_offset);
- writel(0xd, &reg_set->seq_offset);
msleep(1000);
- HostDiag = (u32)readl(&reg_set->host_diag);
+ HostDiag = (u32)readl(hostdiag_offset);
while ( !( HostDiag & DIAG_WRITE_ENABLE) ) {
msleep(100);
- HostDiag = (u32)readl(&reg_set->host_diag);
+ HostDiag = (u32)readl(hostdiag_offset);
printk(KERN_NOTICE "RESETGEN2: retry=%x, hostdiag=%x\n",
retry, HostDiag);
@@ -764,14 +776,14 @@ megasas_adp_reset_gen2(struct megasas_instance *instance,
printk(KERN_NOTICE "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
- writel((HostDiag | DIAG_RESET_ADAPTER), &reg_set->host_diag);
+ writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
ssleep(10);
- HostDiag = (u32)readl(&reg_set->host_diag);
+ HostDiag = (u32)readl(hostdiag_offset);
while ( ( HostDiag & DIAG_RESET_ADAPTER) ) {
msleep(100);
- HostDiag = (u32)readl(&reg_set->host_diag);
+ HostDiag = (u32)readl(hostdiag_offset);
printk(KERN_NOTICE "RESET_GEN2: retry=%x, hostdiag=%x\n",
retry, HostDiag);