mvsas: fixed SMP request watchdog timeout issue.

PATCH New [email protected] 1 participant 1 message Sep 28, 2011 SCSI

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2011-09-28 16:36 UTC #0 lore raw

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

From: Xiangliang Yu <[email protected]>

-- set SMP link timeout value to maximum.

Signed-off-by Xiangliang Yu <[email protected]>

---
 drivers/scsi/mvsas/mv_94xx.c |    4 ++++
 drivers/scsi/mvsas/mv_defs.h |    1 +
 2 files changed, 5 insertions(+), 0 deletions(-)

drivers/scsi/mvsas/mv_94xx.c +4 -0

index ba667db..49088d5 100644
@@ -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);

drivers/scsi/mvsas/mv_defs.h +1 -0

index 8e21482..f545194 100644
@@ -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 {

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1.7.4.4