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sata_nv: add back some verbosity into ADMA error_handler

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Some debug output in the ADMA error_handler function was removed recently,
but it may be useful in certain cases, like NCQ commands timing out. Add it
back in, but make it a bit more intelligent so that it only prints if
command(s) are active and only prints the CPBs for those commands.
That way it won't spew at inappropriate times like suspend/resume.

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 18:34:44 -06:00 committed by Jeff Garzik
parent 4bb64fb981
commit 2cb27853b7
1 changed files with 20 additions and 0 deletions
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20
drivers/ata/sata_nv.c
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@ -1446,6 +1446,26 @@ static void nv_adma_error_handler(struct ata_port *ap)
void __iomem *mmio = pp->ctl_block;
int i;
u16 tmp;
if(ata_tag_valid(ap->active_tag) || ap->sactive) {
u32 notifier = readl(mmio + NV_ADMA_NOTIFIER);
u32 notifier_error = readl(mmio + NV_ADMA_NOTIFIER_ERROR);
u32 gen_ctl = readl(pp->gen_block + NV_ADMA_GEN_CTL);
u32 status = readw(mmio + NV_ADMA_STAT);
ata_port_printk(ap, KERN_ERR, "EH in ADMA mode, notifier 0x%X "
"notifier_error 0x%X gen_ctl 0x%X status 0x%X\n",
notifier, notifier_error, gen_ctl, status);
for( i=0;i<NV_ADMA_MAX_CPBS;i++) {
struct nv_adma_cpb *cpb = &pp->cpb[i];
if( (ata_tag_valid(ap->active_tag) && i == ap->active_tag) ||
ap->sactive & (1 << i) )
ata_port_printk(ap, KERN_ERR,
"CPB %d: ctl_flags 0x%x, resp_flags 0x%x\n",
i, cpb->ctl_flags, cpb->resp_flags);
}
}
/* Push us back into port register mode for error handling. */
nv_adma_register_mode(ap);