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authorH. Peter Anvin <hpa@zytor.com>2008-08-27 19:17:07 -0700
committerH. Peter Anvin <hpa@zytor.com>2008-08-27 19:17:07 -0700
commitb30a72a7edfc64c8929104d5c2178aca489aa559 (patch)
tree2b26c155c318d08d946bd2d70cf815dcdb29a243 /drivers/ata/sata_mv.c
parentf1c5d30e1d79bbfb60eaf189db862d3cb2bcac92 (diff)
parentc1b362e3b4d331a63915b268a33207311a439d60 (diff)
Merge branch 'x86/urgent' into x86/cpu
Conflicts: arch/x86/kernel/cpu/cyrix.c
Diffstat (limited to 'drivers/ata/sata_mv.c')
-rw-r--r--drivers/ata/sata_mv.c37
1 files changed, 12 insertions, 25 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index ad169ffbc4c..13c1d2af18a 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1134,30 +1134,16 @@ static int mv_qc_defer(struct ata_queued_cmd *qc)
if (ap->nr_active_links == 0)
return 0;
- if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) {
- /*
- * The port is operating in host queuing mode (EDMA).
- * It can accomodate a new qc if the qc protocol
- * is compatible with the current host queue mode.
- */
- if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) {
- /*
- * The host queue (EDMA) is in NCQ mode.
- * If the new qc is also an NCQ command,
- * then allow the new qc.
- */
- if (qc->tf.protocol == ATA_PROT_NCQ)
- return 0;
- } else {
- /*
- * The host queue (EDMA) is in non-NCQ, DMA mode.
- * If the new qc is also a non-NCQ, DMA command,
- * then allow the new qc.
- */
- if (qc->tf.protocol == ATA_PROT_DMA)
- return 0;
- }
- }
+ /*
+ * The port is operating in host queuing mode (EDMA) with NCQ
+ * enabled, allow multiple NCQ commands. EDMA also allows
+ * queueing multiple DMA commands but libata core currently
+ * doesn't allow it.
+ */
+ if ((pp->pp_flags & MV_PP_FLAG_EDMA_EN) &&
+ (pp->pp_flags & MV_PP_FLAG_NCQ_EN) && ata_is_ncq(qc->tf.protocol))
+ return 0;
+
return ATA_DEFER_PORT;
}
@@ -3036,7 +3022,8 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
break;
case chip_soc:
hpriv->ops = &mv_soc_ops;
- hp_flags |= MV_HP_FLAG_SOC | MV_HP_ERRATA_60X1C0;
+ hp_flags |= MV_HP_FLAG_SOC | MV_HP_GEN_IIE |
+ MV_HP_ERRATA_60X1C0;
break;
default: