diff options
| -rw-r--r-- | drivers/scsi/mvsas/mv_94xx.c | 9 | ||||
| -rw-r--r-- | drivers/scsi/mvsas/mv_defs.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c index 016d3d4..130d803 100644 --- a/drivers/scsi/mvsas/mv_94xx.c +++ b/drivers/scsi/mvsas/mv_94xx.c @@ -510,6 +510,15 @@ static int __devinit mvs_94xx_init(struct mvs_info *mvi) tmp |= CINT_PHY_MASK; mw32(MVS_INT_MASK, tmp); + /* tune STP performance */ + tmp = 0x003F003F; + mvs_cw32(mvi, CMD_PL_TIMER, tmp); + + /* This can improve expander large block size seq write performance */ + tmp = mvs_cr32(mvi, CMD_PORT_LAYER_TIMER1); + tmp |= 0xFFFF007F; + mvs_cw32(mvi, CMD_PORT_LAYER_TIMER1, tmp); + /* change the connection open-close behavior (bit 9) * set bit8 to 1 for performance tuning */ tmp = mvs_cr32(mvi, CMD_SL_MODE0); diff --git a/drivers/scsi/mvsas/mv_defs.h b/drivers/scsi/mvsas/mv_defs.h index dec7cad..8e21482 100644 --- a/drivers/scsi/mvsas/mv_defs.h +++ b/drivers/scsi/mvsas/mv_defs.h @@ -387,6 +387,7 @@ enum sas_cmd_port_registers { CMD_SL_MODE0 = 0x1BC, /* SL Mode 0 */ 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 */ }; enum mvs_info_flags { |