diff options
Diffstat (limited to 'drivers/ata/libata-eh.c')
| -rw-r--r-- | drivers/ata/libata-eh.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 1f84e40fa6ae..5a2b2af4d0c1 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2557,7 +2557,11 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, /* reset */ if (reset) { - ata_eh_freeze_port(ap); + /* if PMP is attached, this function only deals with + * downstream links, port should stay thawed. + */ + if (!ap->nr_pmp_links) + ata_eh_freeze_port(ap); ata_port_for_each_link(link, ap) { struct ata_eh_context *ehc = &link->eh_context; @@ -2575,7 +2579,8 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, } } - ata_eh_thaw_port(ap); + if (!ap->nr_pmp_links) + ata_eh_thaw_port(ap); } /* the rest */ @@ -2610,8 +2615,14 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, if (ata_eh_handle_dev_fail(dev, rc)) nr_disabled_devs++; - if (ap->pflags & ATA_PFLAG_FROZEN) + if (ap->pflags & ATA_PFLAG_FROZEN) { + /* PMP reset requires working host port. + * Can't retry if it's frozen. + */ + if (ap->nr_pmp_links) + goto out; break; + } } if (nr_failed_devs) { |