[PATCH V2 11/15] aacraid: Skip IOP reset on controller panic(SMART Family)

Raghava Aditya Renukunta
2017-02-17T03:28:19Z

When the SMART family of controller panic (KERNEL_PANIC) , they do not
honor IOP resets. So better to skip it and directly perform a IWBR reset.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>

---
Changes in V2:
Removed unnecessary brackets and fixed a spelling mistake

drivers/scsi/aacraid/src.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index b23c818..9b11e1a 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -714,6 +714,12 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
pr_err("%s%d: adapter kernel panic'd %x.\n",
dev->name, dev->id, bled);

+ /*
+ * When there is a BlinkLED, IOP_RESET has not effect
+ */
+ if (bled >= 2 && dev->sa_firmware && reset_type & HW_IOP_RESET)
+ reset_type &= ~HW_IOP_RESET;
+
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;

switch (reset_type) {
--
2.7.4