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| author | Tejun Heo <htejun@gmail.com> | 2007-08-06 13:36:22 +0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 22:55:30 +0400 |
| commit | 9af5c9c97dc9d599281778864c72b385f0c63341 (patch) | |
| tree | 8359986bd42c4a9a5b1993078aa9ee4c7971ac3d /drivers/ata/pdc_adma.c | |
| parent | 640fdb504941fa2b9f6f274716fc9f97f2bf6bff (diff) | |
| download | linux-9af5c9c97dc9d599281778864c72b385f0c63341.tar.xz | |
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.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c index c95c1bf7df37..064a3b505609 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); |