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[SCSI] mvsas: fixed SMP request watchdog timeout issue.
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set SMP link timeout value to maximum.

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Xiangliang Yu authored and James Bottomley committed Oct 2, 2011
1 parent 3a4b7ef commit 40d3921
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Showing 2 changed files with 5 additions and 0 deletions.
4 changes: 4 additions & 0 deletions drivers/scsi/mvsas/mv_94xx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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);
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1 change: 1 addition & 0 deletions drivers/scsi/mvsas/mv_defs.h
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Expand Up @@ -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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