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| author | Srinivas <satyasrinivasp@hcl.in> | 2010-02-15 00:00:00 -0600 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-04-11 14:44:01 -0500 |
| commit | 9dc9fd9484c5168d23fe855e6c56543d96b6695b (patch) | |
| tree | 514bbe305138f21af247441f535e20430c3829b6 /drivers/scsi/mvsas/mv_64xx.c | |
| parent | c8032216c9607ee8c62a39484711750c1445c6a4 (diff) | |
| download | linux-9dc9fd9484c5168d23fe855e6c56543d96b6695b.tar.bz2 | |
[SCSI] mvsas: fix hot plug handling and IO issues
This patch adds a bunch of fixes
1. Reduce sg table size to 64 (SG_MX) instead of default SG_ALL
2. clear task lists on phy down events
3. release all tasks on port deformation
4. release current task for device gone notification
5. Add sata abort handing
6. Add 10ms delay to each port reset (currently done serially and with
interrupts disabled)
[jejb: whitespace fixes and clean ups plus added description
added dummy 94xx_clear_srs_irq function just to prevent the
mismatch in the mvs_dispatch structure killing 94xx cards]
Signed-off-by: Srinivas <satyasrinivasp@hcl.in>
Cc: Andy Yan <ayan@marvell.com>
Cc: qswang@marvell.com
Cc: jfeng@marvell.com
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/mvsas/mv_64xx.c')
| -rw-r--r-- | drivers/scsi/mvsas/mv_64xx.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/scsi/mvsas/mv_64xx.c b/drivers/scsi/mvsas/mv_64xx.c index 10a5077b6aed..afc7f6f3a13e 100644 --- a/drivers/scsi/mvsas/mv_64xx.c +++ b/drivers/scsi/mvsas/mv_64xx.c @@ -132,9 +132,9 @@ static void mvs_64xx_phy_reset(struct mvs_info *mvi, u32 phy_id, int hard) tmp &= ~PHYEV_RDY_CH; mvs_write_port_irq_stat(mvi, phy_id, tmp); tmp = mvs_read_phy_ctl(mvi, phy_id); - if (hard) + if (hard == 1) tmp |= PHY_RST_HARD; - else + else if (hard == 0) tmp |= PHY_RST; mvs_write_phy_ctl(mvi, phy_id, tmp); if (hard) { @@ -144,6 +144,26 @@ static void mvs_64xx_phy_reset(struct mvs_info *mvi, u32 phy_id, int hard) } } +void mvs_64xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all) +{ + void __iomem *regs = mvi->regs; + u32 tmp; + if (clear_all) { + tmp = mr32(MVS_INT_STAT_SRS_0); + if (tmp) { + printk(KERN_DEBUG "check SRS 0 %08X.\n", tmp); + mw32(MVS_INT_STAT_SRS_0, tmp); + } + } else { + tmp = mr32(MVS_INT_STAT_SRS_0); + if (tmp & (1 << (reg_set % 32))) { + printk(KERN_DEBUG "register set 0x%x was stopped.\n", + reg_set); + mw32(MVS_INT_STAT_SRS_0, 1 << (reg_set % 32)); + } + } +} + static int __devinit mvs_64xx_chip_reset(struct mvs_info *mvi) { void __iomem *regs = mvi->regs; @@ -761,6 +781,7 @@ const struct mvs_dispatch mvs_64xx_dispatch = { mvs_write_port_irq_mask, mvs_get_sas_addr, mvs_64xx_command_active, + mvs_64xx_clear_srs_irq, mvs_64xx_issue_stop, mvs_start_delivery, mvs_rx_update, |