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libata: report protocol and full CDB on error 

Protocol and CDB allocation size field are important in determining
what went wrong with ATAPI commands.  Report them on failure.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-11-28 23:16:09 +09:00 committed by Jeff Garzik
parent 1c20a493ca
commit abb6a88974
1 changed files with 33 additions and 9 deletions
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42
drivers/ata/libata-eh.c
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@ -1850,30 +1850,54 @@ static void ata_eh_link_report(struct ata_link *link)
ehc->i.serror & SERR_DEV_XCHG ? "DevExch " : "");
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
static const char *dma_str[] = {
[DMA_BIDIRECTIONAL] = "bidi",
[DMA_TO_DEVICE] = "out",
[DMA_FROM_DEVICE] = "in",
[DMA_NONE] = "",
};
struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag);
struct ata_taskfile *cmd = &qc->tf, *res = &qc->result_tf;
const u8 *cdb = qc->cdb;
char data_buf[20] = "";
char cdb_buf[70] = "";
if (!(qc->flags & ATA_QCFLAG_FAILED) ||
qc->dev->link != link || !qc->err_mask)
continue;
if (qc->dma_dir != DMA_NONE) {
static const char *dma_str[] = {
[DMA_BIDIRECTIONAL] = "bidi",
[DMA_TO_DEVICE] = "out",
[DMA_FROM_DEVICE] = "in",
};
static const char *prot_str[] = {
[ATA_PROT_PIO] = "pio",
[ATA_PROT_DMA] = "dma",
[ATA_PROT_NCQ] = "ncq",
[ATA_PROT_ATAPI] = "pio",
[ATA_PROT_ATAPI_DMA] = "dma",
};
snprintf(data_buf, sizeof(data_buf), " %s %u %s",
prot_str[qc->tf.protocol], qc->nbytes,
dma_str[qc->dma_dir]);
}
if (is_atapi_taskfile(&qc->tf))
snprintf(cdb_buf, sizeof(cdb_buf),
"cdb %02x %02x %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x\n ",
cdb[0], cdb[1], cdb[2], cdb[3],
cdb[4], cdb[5], cdb[6], cdb[7],
cdb[8], cdb[9], cdb[10], cdb[11],
cdb[12], cdb[13], cdb[14], cdb[15]);
ata_dev_printk(qc->dev, KERN_ERR,
"cmd %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x "
"tag %d cdb 0x%x data %u %s\n "
"tag %d%s\n %s"
"res %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x "
"Emask 0x%x (%s)%s\n",
cmd->command, cmd->feature, cmd->nsect,
cmd->lbal, cmd->lbam, cmd->lbah,
cmd->hob_feature, cmd->hob_nsect,
cmd->hob_lbal, cmd->hob_lbam, cmd->hob_lbah,
cmd->device, qc->tag, qc->cdb[0], qc->nbytes,
dma_str[qc->dma_dir],
cmd->device, qc->tag, data_buf, cdb_buf,
res->command, res->feature, res->nsect,
res->lbal, res->lbam, res->lbah,
res->hob_feature, res->hob_nsect,