Commit 3bd0a70e authored Jun 18, 2008 by Mark Lord Committed by Jeff Garzik Jun 18, 2008

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>

parent 5895ef9a

drivers/ata/sata_mv.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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.