diff options
| author | Mark Lord <liml@rtr.ca> | 2008-06-18 18:11:16 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-06-19 02:27:55 +0200 |
| commit | 3bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675b (patch) | |
| tree | 4f97e1c8fc662dde53c218c87414bcbd15d36d9b /drivers/ata/sata_mv.c | |
| parent | libata: don't check whether to use DMA or not for no data commands (diff) | |
| download | linux-3bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675b.tar.xz linux-3bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675b.zip | |
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>
Diffstat (limited to 'drivers/ata/sata_mv.c')
| -rw-r--r-- | drivers/ata/sata_mv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 60391e9a84db..75fde48e1a73 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. |