From 9af5c9c97dc9d599281778864c72b385f0c63341 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 6 Aug 2007 18:36:22 +0900 Subject: 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 Cc: James Bottomley Signed-off-by: Jeff Garzik --- drivers/ata/sata_sx4.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/ata/sata_sx4.c') diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c index 97aefdd87be..12691f09193 100644 --- a/drivers/ata/sata_sx4.c +++ b/drivers/ata/sata_sx4.c @@ -854,7 +854,7 @@ static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance) !(ap->flags & ATA_FLAG_DISABLED)) { struct ata_queued_cmd *qc; - 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))) handled += pdc20621_host_intr(ap, qc, (i > 4), mmio_base); @@ -881,7 +881,7 @@ static void pdc_eng_timeout(struct ata_port *ap) spin_lock_irqsave(&host->lock, flags); - qc = ata_qc_from_tag(ap, ap->active_tag); + qc = ata_qc_from_tag(ap, ap->link.active_tag); switch (qc->tf.protocol) { case ATA_PROT_DMA: -- cgit v1.2.3