diff options
| author | Tejun Heo <htejun@gmail.com> | 2006-04-02 17:54:46 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-04-02 10:02:57 -0400 |
| commit | 90dac02c08dabd471927f151b8393eb51e3e020e (patch) | |
| tree | fb799ab84c4fec00dba52c0180f24bd84a6ba69a /drivers/scsi/libata-core.c | |
| parent | 1c3fae4d7eb121933341443c37d3bbee43c0fb68 (diff) | |
[PATCH] libata: use SATA speed down in ata_drive_probe_reset()
Make ata_drive_probe_reset() use SATA SPD configuration. Hardreset
will be force if speed renegotiation is necessary. Also, if a
hardreset fails, PHY speed is stepped down and hardreset is retried
until the lowest speed is reached.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/scsi/libata-core.c')
| -rw-r--r-- | drivers/scsi/libata-core.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 63488673765..4fd24075afd 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2578,7 +2578,7 @@ int ata_drive_probe_reset(struct ata_port *ap, ata_probeinit_fn_t probeinit, if (probeinit) probeinit(ap); - if (softreset) { + if (softreset && !ata_set_sata_spd_needed(ap)) { rc = ata_do_reset(ap, softreset, postreset, 0, classes); if (rc == 0 && classes[0] != ATA_DEV_UNKNOWN) goto done; @@ -2587,9 +2587,17 @@ int ata_drive_probe_reset(struct ata_port *ap, ata_probeinit_fn_t probeinit, if (!hardreset) goto done; - rc = ata_do_reset(ap, hardreset, postreset, 0, classes); - if (rc || classes[0] != ATA_DEV_UNKNOWN) - goto done; + while (1) { + rc = ata_do_reset(ap, hardreset, postreset, 0, classes); + if (rc == 0) { + if (classes[0] != ATA_DEV_UNKNOWN) + goto done; + break; + } + + if (ata_down_sata_spd_limit(ap)) + goto done; + } if (softreset) rc = ata_do_reset(ap, softreset, postreset, 0, classes); |