From 7ae0b3b750ca9b10ee0bcde2aee8fbf2a0c4daae Mon Sep 17 00:00:00 2001 From: Xiangliang Yu Date: Thu, 29 Sep 2011 00:34:55 -0700 Subject: [PATCH] --- yaml --- r: 271086 b: refs/heads/master c: 3a4b7efe7fa8ce3822f6139cddce4bae24c9ffe6 h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/drivers/scsi/mvsas/mv_94xx.c | 9 +++++++++ trunk/drivers/scsi/mvsas/mv_defs.h | 1 + 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/[refs] b/[refs] index c3be036ce2f9..825b643cf7b6 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: aa117dd14372e1b0bed651af2db1be670b595032 +refs/heads/master: 3a4b7efe7fa8ce3822f6139cddce4bae24c9ffe6 diff --git a/trunk/drivers/scsi/mvsas/mv_94xx.c b/trunk/drivers/scsi/mvsas/mv_94xx.c index 016d3d41f23a..130d8036a2b5 100644 --- a/trunk/drivers/scsi/mvsas/mv_94xx.c +++ b/trunk/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/trunk/drivers/scsi/mvsas/mv_defs.h b/trunk/drivers/scsi/mvsas/mv_defs.h index dec7cadb7485..8e21482367d2 100644 --- a/trunk/drivers/scsi/mvsas/mv_defs.h +++ b/trunk/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 {