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authorXiangliang Yu <yuxiangl@marvell.com>2011-09-29 09:34:55 +0200
committerJames Bottomley <JBottomley@Parallels.com>2011-10-02 20:17:27 +0200
commit3a4b7efe7fa8ce3822f6139cddce4bae24c9ffe6 (patch)
treebfeb050365c5bcd7a40435e3a7b047c5fb6a7a1b /drivers/scsi/mvsas/mv_defs.h
parent[SCSI] mvsas: change SL mode0 register value (diff)
downloadlinux-3a4b7efe7fa8ce3822f6139cddce4bae24c9ffe6.tar.xz
linux-3a4b7efe7fa8ce3822f6139cddce4bae24c9ffe6.zip
[SCSI] mvsas: expander write performance enhancement
with 1 expander, connect 8 HDD, the write performance will be improved by 80%. Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/mvsas/mv_defs.h')
-rw-r--r--drivers/scsi/mvsas/mv_defs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/mvsas/mv_defs.h b/drivers/scsi/mvsas/mv_defs.h
index dec7cadb7485..8e21482367d2 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 {