From 40d3921f1dd4e1e53e10f064f0adf056f6e0f71a Mon Sep 17 00:00:00 2001 From: Xiangliang Yu Date: Thu, 29 Sep 2011 00:35:15 -0700 Subject: [PATCH] [SCSI] mvsas: fixed SMP request watchdog timeout issue. set SMP link timeout value to maximum. Signed-off-by: Xiangliang Yu Signed-off-by: James Bottomley --- drivers/scsi/mvsas/mv_94xx.c | 4 ++++ drivers/scsi/mvsas/mv_defs.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c index 130d8036a2b5..7e423e5ad5e1 100644 --- a/drivers/scsi/mvsas/mv_94xx.c +++ b/drivers/scsi/mvsas/mv_94xx.c @@ -510,6 +510,10 @@ 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 8e21482367d2..f5451940d289 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 { -- 2.34.1