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authorXiangliang Yu <yuxiangl@marvell.com>2011-09-29 00:35:15 -0700
committerJames Bottomley <JBottomley@Parallels.com>2011-10-02 13:18:01 -0500
commit40d3921f1dd4e1e53e10f064f0adf056f6e0f71a (patch)
tree53f08bedd0bc221149c656efb8760440e0a339e6 /drivers/scsi/mvsas
parent3a4b7efe7fa8ce3822f6139cddce4bae24c9ffe6 (diff)
[SCSI] mvsas: fixed SMP request watchdog timeout issue.
set SMP link timeout value to maximum. Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/mvsas')
-rw-r--r--drivers/scsi/mvsas/mv_94xx.c4
-rw-r--r--drivers/scsi/mvsas/mv_defs.h1
2 files changed, 5 insertions, 0 deletions
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 {