libata-sff: separate out BMDMA EH
Some of error handling logic in ata_sff_error_handler() and all of
ata_sff_post_internal_cmd() are for BMDMA. Create
ata_bmdma_error_handler() and ata_bmdma_post_internal_cmd() and move
BMDMA part into those.
While at it, change DMA protocol check to ata_is_dma(), fix
post_internal_cmd to call ap->ops->bmdma_stop instead of directly
calling ata_bmdma_stop() and open code hardreset selection so that
ata_std_error_handler() doesn't have to know about sff hardreset.
As these two functions are BMDMA specific, there's no reason to check
for bmdma_addr before calling bmdma methods if the protocol of the
failed command is DMA. sata_mv and pata_mpc52xx now don't need to set
.post_internal_cmd to ATA_OP_NULL and pata_icside and sata_qstor don't
need to set it to their bmdma_stop routines.
ata_sff_post_internal_cmd() becomes noop and is removed.
This fixes p3 described in clean-up-BMDMA-initialization patch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index a007b20c..64e9982 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -1131,7 +1131,7 @@
struct nv_adma_port_priv *pp = qc->ap->private_data;
if (pp->flags & NV_ADMA_PORT_REGISTER_MODE)
- ata_sff_post_internal_cmd(qc);
+ ata_bmdma_post_internal_cmd(qc);
}
static int nv_adma_port_start(struct ata_port *ap)
@@ -1739,7 +1739,7 @@
readw(mmio + NV_ADMA_CTL); /* flush posted write */
}
- ata_sff_error_handler(ap);
+ ata_bmdma_error_handler(ap);
}
static void nv_swncq_qc_to_dq(struct ata_port *ap, struct ata_queued_cmd *qc)
@@ -1865,7 +1865,7 @@
ehc->i.action |= ATA_EH_RESET;
}
- ata_sff_error_handler(ap);
+ ata_bmdma_error_handler(ap);
}
#ifdef CONFIG_PM