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sata_mv ncq Use hqtag instead of ioid

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Simplify tag handling by using the cid/hqtag field instead of ioid,
as recommended by Marvell.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Mark Lord 2008-01-26 18:31:48 -05:00 committed by Jeff Garzik
parent 721091685f
commit 8c0aeb4a48
1 changed files with 3 additions and 10 deletions
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13
drivers/ata/sata_mv.c
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@ -1252,7 +1252,6 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
flags |= CRQB_FLAG_READ;
WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
flags |= qc->tag << CRQB_TAG_SHIFT;
flags |= qc->tag << CRQB_IOID_SHIFT; /* 50xx appears to ignore this*/
/* get current queue index from software */
in_index = pp->req_idx & MV_MAX_Q_DEPTH_MASK;
@ -1345,8 +1344,7 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
flags |= qc->tag << CRQB_TAG_SHIFT;
flags |= qc->tag << CRQB_IOID_SHIFT; /* "I/O Id" is -really-
what we use as our tag */
flags |= qc->tag << CRQB_HOSTQ_SHIFT;
/* get current queue index from software */
in_index = pp->req_idx & MV_MAX_Q_DEPTH_MASK;
@ -1587,13 +1585,8 @@ static void mv_intr_edma(struct ata_port *ap)
* support for queueing. this works transparently for
* queued and non-queued modes.
*/
else if (IS_GEN_II(hpriv))
tag = (le16_to_cpu(pp->crpb[out_index].id)
>> CRPB_IOID_SHIFT_6) & 0x3f;
else /* IS_GEN_IIE */
tag = (le16_to_cpu(pp->crpb[out_index].id)
>> CRPB_IOID_SHIFT_7) & 0x3f;
else
tag = le16_to_cpu(pp->crpb[out_index].id) & 0x1f;
qc = ata_qc_from_tag(ap, tag);