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[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>
This commit is contained in:
adam radford 2011-02-24 20:57:15 -08:00 committed by James Bottomley
parent 42a8d2b34d
commit ebf054b00b
1 changed files with 37 additions and 25 deletions
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62
drivers/scsi/megaraid/megaraid_sas_base.c
View File

@ -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
*/
@ -563,6 +569,15 @@ megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
return 0;
}
/*
* 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
*/
@ -573,7 +588,7 @@ megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
*/
readl(&regs->outbound_intr_status);
return 1;
return mfiStatus;
}
/**
@ -596,17 +611,6 @@ megasas_fire_cmd_skinny(struct megasas_instance *instance,
spin_unlock_irqrestore(&instance->hba_lock, flags);
}
/**
* 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);