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authorMark Lord <liml@rtr.ca>2008-06-18 12:11:16 -0400
committerJeff Garzik <jgarzik@redhat.com>2008-06-18 20:27:55 -0400
commit3bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675b (patch)
tree4f97e1c8fc662dde53c218c87414bcbd15d36d9b
parent5895ef9a5b746e7cc9ebda50c87fbd11562da0a4 (diff)
downloadlinux-3bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675b.tar.gz
sata_mv: enable async_notify for 60x1 Rev.C0 and higher
The early chipsets cannot safely handle Async Notification (AN), but 6041/6081 chip revision "C0" (and newer) can handle it. So allow AN for "C0" and higher. This enables use of hotplug on PMP ports for the 6041/6081 PCI Rev.9 chips. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r--drivers/ata/sata_mv.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 60391e9a84d..75fde48e1a7 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1322,6 +1322,9 @@ static int mv_port_start(struct ata_port *ap)
goto out_port_free_dma_mem;
memset(pp->crpb, 0, MV_CRPB_Q_SZ);
+ /* 6041/6081 Rev. "C0" (and newer) are okay with async notify */
+ if (hpriv->hp_flags & MV_HP_ERRATA_60X1C0)
+ ap->flags |= ATA_FLAG_AN;
/*
* For GEN_I, there's no NCQ, so we only allocate a single sg_tbl.
* For later hardware, we need one unique sg_tbl per NCQ tag.