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| author | Tejun Heo <htejun@gmail.com> | 2007-08-06 18:36:22 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 14:55:30 -0400 |
| commit | 9af5c9c97dc9d599281778864c72b385f0c63341 (patch) | |
| tree | 8359986bd42c4a9a5b1993078aa9ee4c7971ac3d /drivers/ata/sata_inic162x.c | |
| parent | 640fdb504941fa2b9f6f274716fc9f97f2bf6bff (diff) | |
| download | linux-9af5c9c97dc9d599281778864c72b385f0c63341.tar.gz linux-9af5c9c97dc9d599281778864c72b385f0c63341.tar.bz2 linux-9af5c9c97dc9d599281778864c72b385f0c63341.zip | |
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/sata_inic162x.c')
| -rw-r--r-- | drivers/ata/sata_inic162x.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index fdbed8ecdfc2..3c0ef7a2f2fe 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -285,7 +285,7 @@ static void inic_irq_clear(struct ata_port *ap) static void inic_host_intr(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); - struct ata_eh_info *ehi = &ap->eh_info; + struct ata_eh_info *ehi = &ap->link.eh_info; u8 irq_stat; /* fetch and clear irq */ @@ -293,7 +293,8 @@ static void inic_host_intr(struct ata_port *ap) writeb(irq_stat, port_base + PORT_IRQ_STAT); if (likely(!(irq_stat & PIRQ_ERR))) { - struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag); + struct ata_queued_cmd *qc = + ata_qc_from_tag(ap, ap->link.active_tag); if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) { ata_chk_status(ap); /* clear ATA interrupt */ @@ -421,7 +422,7 @@ static int inic_hardreset(struct ata_port *ap, unsigned int *class, { void __iomem *port_base = inic_port_base(ap); void __iomem *idma_ctl = port_base + PORT_IDMA_CTL; - const unsigned long *timing = sata_ehc_deb_timing(&ap->eh_context); + const unsigned long *timing = sata_ehc_deb_timing(&ap->link.eh_context); u16 val; int rc; |