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authorTejun Heo <htejun@gmail.com>2007-08-06 05:36:22 -0400
committerJeff Garzik <jeff@garzik.org>2007-10-12 14:55:30 -0400
commit9af5c9c97dc9d599281778864c72b385f0c63341 (patch)
tree8359986bd42c4a9a5b1993078aa9ee4c7971ac3d /drivers/ata/libata-sff.c
parent640fdb504941fa2b9f6f274716fc9f97f2bf6bff (diff)
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/libata-sff.c')
-rw-r--r--drivers/ata/libata-sff.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 8023167bbbeb..2100cd61ed69 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -445,7 +445,7 @@ void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
445 unsigned long flags; 445 unsigned long flags;
446 int thaw = 0; 446 int thaw = 0;
447 447
448 qc = __ata_qc_from_tag(ap, ap->active_tag); 448 qc = __ata_qc_from_tag(ap, ap->link.active_tag);
449 if (qc && !(qc->flags & ATA_QCFLAG_FAILED)) 449 if (qc && !(qc->flags & ATA_QCFLAG_FAILED))
450 qc = NULL; 450 qc = NULL;
451 451
@@ -909,7 +909,7 @@ unsigned long ata_pci_default_filter(struct ata_device *adev, unsigned long xfer
909 /* Filter out DMA modes if the device has been configured by 909 /* Filter out DMA modes if the device has been configured by
910 the BIOS as PIO only */ 910 the BIOS as PIO only */
911 911
912 if (adev->ap->ioaddr.bmdma_addr == 0) 912 if (adev->link->ap->ioaddr.bmdma_addr == 0)
913 xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA); 913 xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
914 return xfer_mask; 914 return xfer_mask;
915} 915}