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authorTejun Heo <htejun@gmail.com>2007-08-06 18:36:22 +0900
committerJeff Garzik <jeff@garzik.org>2007-10-12 14:55:30 -0400
commit9af5c9c97dc9d599281778864c72b385f0c63341 (patch)
tree8359986bd42c4a9a5b1993078aa9ee4c7971ac3d /drivers/ata/pdc_adma.c
parent640fdb504941fa2b9f6f274716fc9f97f2bf6bff (diff)
downloadop-kernel-dev-9af5c9c97dc9d599281778864c72b385f0c63341.zip
op-kernel-dev-9af5c9c97dc9d599281778864c72b385f0c63341.tar.gz
libata-link: introduce ata_link
Introduce ata_link. It abstracts PHY and sits between ata_port and ata_device. This new level of abstraction is necessary to support SATA Port Multiplier, which basically adds a bunch of links (PHYs) to a ATA host port. Fields related to command execution, spd_limit and EH are per-link and thus moved to ata_link. This patch only defines the host link. Multiple link handling will be added later. Also, a lot of ap->link derefences are added but many of them will be removed as each part is converted to deal directly with ata_link instead of ata_port. This patch introduces no behavior change. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pdc_adma.c')
-rw-r--r--drivers/ata/pdc_adma.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
index c95c1bf..064a3b5 100644
--- a/drivers/ata/pdc_adma.c
+++ b/drivers/ata/pdc_adma.c
@@ -485,7 +485,7 @@ static inline unsigned int adma_intr_pkt(struct ata_host *host)
pp = ap->private_data;
if (!pp || pp->state != adma_state_pkt)
continue;
- qc = ata_qc_from_tag(ap, ap->active_tag);
+ qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) {
if (status & aPERR)
qc->err_mask |= AC_ERR_HOST_BUS;
@@ -500,7 +500,7 @@ static inline unsigned int adma_intr_pkt(struct ata_host *host)
if (!qc->err_mask)
ata_qc_complete(qc);
else {
- struct ata_eh_info *ehi = &ap->eh_info;
+ struct ata_eh_info *ehi = &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
ata_ehi_push_desc(ehi,
"ADMA-status 0x%02X", status);
@@ -529,7 +529,7 @@ static inline unsigned int adma_intr_mmio(struct ata_host *host)
struct adma_port_priv *pp = ap->private_data;
if (!pp || pp->state != adma_state_mmio)
continue;
- qc = ata_qc_from_tag(ap, ap->active_tag);
+ qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) {
/* check main status, clearing INTRQ */
@@ -545,7 +545,8 @@ static inline unsigned int adma_intr_mmio(struct ata_host *host)
if (!qc->err_mask)
ata_qc_complete(qc);
else {
- struct ata_eh_info *ehi = &ap->eh_info;
+ struct ata_eh_info *ehi =
+ &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
ata_ehi_push_desc(ehi,
"status 0x%02X", status);
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