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sata_nv: handle SError status indication 

ADMA-capable controllers provide a bit in the status register that appears
to indicate that the controller detected an SError condition. Update sata_nv
to detect this and trigger error handling in order to handle the fault.

Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Robert Hancock 2007-02-11 18:36:56 -06:00 committed by Jeff Garzik
parent 8361cd79f2
commit 5278b50cea
1 changed files with 5 additions and 1 deletions
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6
drivers/ata/sata_nv.c
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@ -827,7 +827,8 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
/* freeze if hotplugged or controller error */
if (unlikely(status & (NV_ADMA_STAT_HOTPLUG |
NV_ADMA_STAT_HOTUNPLUG |
NV_ADMA_STAT_TIMEOUT))) {
NV_ADMA_STAT_TIMEOUT |
NV_ADMA_STAT_SERROR))) {
struct ata_eh_info *ehi = &ap->eh_info;
ata_ehi_clear_desc(ehi);
@ -841,6 +842,9 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
} else if (status & NV_ADMA_STAT_HOTUNPLUG) {
ata_ehi_hotplugged(ehi);
ata_ehi_push_desc(ehi, ": hot unplug");
} else if (status & NV_ADMA_STAT_SERROR) {
/* let libata analyze SError and figure out the cause */
ata_ehi_push_desc(ehi, ": SError");
}
ata_port_freeze(ap);
continue;