[PATCH 7/8] [SCSI] mvsas: fixed SMP request watchdog timeout issue.

yxlraid
2011-09-28T16:36:02Z

-- set SMP link timeout value to maximum.

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
---
drivers/scsi/mvsas/mv_94xx.c | 4 ++++
drivers/scsi/mvsas/mv_defs.h | 1 +
2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c
index ba667db..49088d5 100644
--- a/drivers/scsi/mvsas/mv_94xx.c
+++ b/drivers/scsi/mvsas/mv_94xx.c
@@ -511,6 +511,10 @@ static int __devinit mvs_94xx_init(struct mvs_info *mvi)
tmp |= CINT_PHY_MASK;
mw32(MVS_INT_MASK, tmp);

+ tmp = mvs_cr32(mvi, CMD_LINK_TIMER);
+ tmp |= 0xFFFF0000;
+ mvs_cw32(mvi, CMD_LINK_TIMER, tmp);
+
/* tune STP performance */
tmp = 0x003F003F;
mvs_cw32(mvi, CMD_PL_TIMER, tmp);
diff --git a/drivers/scsi/mvsas/mv_defs.h b/drivers/scsi/mvsas/mv_defs.h
index 8e21482..f545194 100644
--- a/drivers/scsi/mvsas/mv_defs.h
+++ b/drivers/scsi/mvsas/mv_defs.h
@@ -388,6 +388,7 @@ enum sas_cmd_port_registers {
CMD_SL_MODE1 = 0x1C0, /* SL Mode 1 */
CMD_PND_FIFO_CTL1 = 0x1C4, /* Pending FIFO Control 1 */
CMD_PORT_LAYER_TIMER1 = 0x1E0, /* Port Layer Timer 1 */
+ CMD_LINK_TIMER = 0x1E4, /* Link Timer */
};

enum mvs_info_flags {
--
1.7.4.4