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| author | Xiangliang Yu <yuxiangl@marvell.com> | 2011-09-29 00:34:32 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-10-02 13:15:04 -0500 |
| commit | aa117dd14372e1b0bed651af2db1be670b595032 (patch) | |
| tree | b1156f20fdf22c9ac5bac962227d067dd87179b4 | |
| parent | 07f098e6f4a9a488605d6a3a13ce2805023a0384 (diff) | |
| download | op-kernel-dev-aa117dd14372e1b0bed651af2db1be670b595032.zip op-kernel-dev-aa117dd14372e1b0bed651af2db1be670b595032.tar.gz | |
[SCSI] mvsas: change SL mode0 register value
-- change connection behavior
-- set bit8 to 1 for performance tuning
-- set bit0 to 0 to enable retry for no_dest reject case.
Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/mvsas/mv_94xx.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c index ce4e970..016d3d4 100644 --- a/drivers/scsi/mvsas/mv_94xx.c +++ b/drivers/scsi/mvsas/mv_94xx.c @@ -510,6 +510,14 @@ static int __devinit mvs_94xx_init(struct mvs_info *mvi) tmp |= CINT_PHY_MASK; mw32(MVS_INT_MASK, tmp); + /* change the connection open-close behavior (bit 9) + * set bit8 to 1 for performance tuning */ + tmp = mvs_cr32(mvi, CMD_SL_MODE0); + tmp |= 0x00000300; + /* set bit0 to 0 to enable retry for no_dest reject case */ + tmp &= 0xFFFFFFFE; + mvs_cw32(mvi, CMD_SL_MODE0, tmp); + /* Enable SRS interrupt */ mw32(MVS_INT_MASK_SRS_0, 0xFFFF); |
