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| author | Xiangliang Yu <yuxiangl@marvell.com> | 2011-05-24 22:38:10 +0800 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-07-26 10:39:09 +0400 |
| commit | e144f7ef49ec85e9dfdf130f3a9a2372fe5fe39b (patch) | |
| tree | 1500ee564c2ca4f230afa548bbb023b91ffd88fb /drivers/scsi/mvsas/mv_94xx.c | |
| parent | 84fbd0cea11b80d7b7097343d5262004d42b8a9a (diff) | |
| download | linux-e144f7ef49ec85e9dfdf130f3a9a2372fe5fe39b.tar.bz2 | |
[SCSI] mvsas: update comments
Remove obsolete comments and add new comments
Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/mvsas/mv_94xx.c')
| -rw-r--r-- | drivers/scsi/mvsas/mv_94xx.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c index 1276e494b868..f4a995c29eb1 100644 --- a/drivers/scsi/mvsas/mv_94xx.c +++ b/drivers/scsi/mvsas/mv_94xx.c @@ -460,13 +460,7 @@ static int __devinit mvs_94xx_init(struct mvs_info *mvi) mvs_update_phyinfo(mvi, i, 1); } - /* FIXME: update wide port bitmaps */ - /* little endian for open address and command table, etc. */ - /* - * it seems that ( from the spec ) turning on big-endian won't - * do us any good on big-endian machines, need further confirmation - */ cctl = mr32(MVS_CTL); cctl |= CCTL_ENDIAN_CMD; cctl &= ~CCTL_ENDIAN_OPEN; @@ -478,8 +472,8 @@ static int __devinit mvs_94xx_init(struct mvs_info *mvi) tmp |= PCS_CMD_RST; tmp &= ~PCS_SELF_CLEAR; mw32(MVS_PCS, tmp); - /* interrupt coalescing may cause missing HW interrput in some case, - * and the max count is 0x1ff, while our max slot is 0x200, + /* + * the max count is 0x1ff, while our max slot is 0x200, * it will make count 0. */ tmp = 0; @@ -488,6 +482,7 @@ static int __devinit mvs_94xx_init(struct mvs_info *mvi) else mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ | COAL_EN); + /* default interrupt coalescing time is 128us */ tmp = 0x10000 | interrupt_coalescing; mw32(MVS_INT_COAL_TMOUT, tmp); @@ -745,7 +740,7 @@ static int mvs_94xx_oob_done(struct mvs_info *mvi, int i) { u32 phy_st; phy_st = mvs_read_phy_ctl(mvi, i); - if (phy_st & PHY_READY_MASK) /* phy ready */ + if (phy_st & PHY_READY_MASK) return 1; return 0; } @@ -770,7 +765,6 @@ static void mvs_94xx_get_att_identify_frame(struct mvs_info *mvi, int port_id, int i; u32 id_frame[7]; - /* mvs_hexdump(28, (u8 *)id_frame, 0); */ for (i = 0; i < 7; i++) { mvs_write_port_cfg_addr(mvi, port_id, CONFIG_ATT_ID_FRAME0 + i * 4); @@ -778,7 +772,6 @@ static void mvs_94xx_get_att_identify_frame(struct mvs_info *mvi, int port_id, mv_dprintk("94xx phy %d atta frame %d %x.\n", port_id + mvi->id * mvi->chip->n_phy, i, id_frame[i]); } - /* mvs_hexdump(28, (u8 *)id_frame, 0); */ memcpy(id, id_frame, 28); } @@ -962,8 +955,8 @@ static void mvs_94xx_tune_interrupt(struct mvs_info *mvi, u32 time) { void __iomem *regs = mvi->regs; u32 tmp = 0; - /* interrupt coalescing may cause missing HW interrput in some case, - * and the max count is 0x1ff, while our max slot is 0x200, + /* + * the max count is 0x1ff, while our max slot is 0x200, * it will make count 0. */ if (time == 0) { |