megaraid_sas: Disable controller reset for ppc

PATCH New Hannes Reinecke 1 participant 1 message Oct 2, 2013

Subsystems (2)

SCSI Megaraid SCSI/SAS drivers

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Hannes Reinecke

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2013-10-02 09:03 UTC #0 lore raw

PATCH 1/1 megaraid_sas: Disable controller reset for ppc

PPC (PCI ID 0x1000:0x0060) based HBAs will crash the firmware when an OCR is attempted. So disable it for these controllers.

Cc Sumit Saxena <[email protected]>

Cc Adam Radford <[email protected]>

Signed-off-by Hannes Reinecke <[email protected]>

---
 drivers/scsi/megaraid/megaraid_sas_base.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

drivers/scsi/megaraid/megaraid_sas_base.c +12 -1

index 0177295..fd75d6e 100644
@@ -516,6 +516,17 @@ megasas_check_reset_ppc(struct megasas_instance *instance,
 	return 0;
 }
 
+/**
+ * megasas_adp_reset_ppc -  For controller reset
+ * @regs:                              MFI register set
+ */
+static int
+megasas_adp_reset_ppc(struct megasas_instance *instance,
+	struct megasas_register_set __iomem *regs)
+{
+	return 0;
+}
+
 static struct megasas_instance_template megasas_instance_template_ppc = {
 
 	.fire_cmd = megasas_fire_cmd_ppc,

@@ -523,7 +534,7 @@ static struct megasas_instance_template megasas_instance_template_ppc = {
 	.disable_intr = megasas_disable_intr_ppc,
 	.clear_intr = megasas_clear_intr_ppc,
 	.read_fw_status_reg = megasas_read_fw_status_reg_ppc,
-	.adp_reset = megasas_adp_reset_xscale,
+	.adp_reset = megasas_adp_reset_ppc,
 	.check_reset = megasas_check_reset_ppc,
 	.service_isr = megasas_isr,
 	.tasklet = megasas_complete_cmd_dpc,

Signature · 1 line

1.7.12.4