Tejun Heo wrote:
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@xxxxxxxxx> Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxx> --- drivers/ata/ahci.c | 18 +++--- drivers/ata/ata_generic.c | 2 +- drivers/ata/libata-acpi.c | 21 +++--- drivers/ata/libata-core.c | 157 ++++++++++++++++++++++------------------- drivers/ata/libata-eh.c | 100 +++++++++++++------------- drivers/ata/libata-scsi.c | 41 ++++++----- drivers/ata/libata-sff.c | 4 +- drivers/ata/pata_it821x.c | 4 +- drivers/ata/pata_ixp4xx_cf.c | 4 +- drivers/ata/pata_legacy.c | 4 +- drivers/ata/pata_optidma.c | 4 +- drivers/ata/pata_pcmcia.c | 4 +- drivers/ata/pata_pdc2027x.c | 2 +- drivers/ata/pata_platform.c | 2 +- drivers/ata/pata_qdi.c | 2 +- drivers/ata/pata_rz1000.c | 2 +- drivers/ata/pata_scc.c | 2 +- drivers/ata/pata_sis.c | 2 +- drivers/ata/pata_winbond.c | 2 +- drivers/ata/pdc_adma.c | 9 ++- drivers/ata/sata_inic162x.c | 7 +- drivers/ata/sata_mv.c | 14 ++-- drivers/ata/sata_nv.c | 26 ++++---- drivers/ata/sata_promise.c | 6 +- drivers/ata/sata_qstor.c | 4 +- drivers/ata/sata_sil.c | 14 ++-- drivers/ata/sata_sil24.c | 14 ++-- drivers/ata/sata_sx4.c | 4 +- drivers/ata/sata_via.c | 2 +- drivers/ata/sata_vsc.c | 2 +- drivers/scsi/ipr.c | 6 +- drivers/scsi/libsas/sas_ata.c | 10 ++-- include/linux/libata.h | 40 +++++++---- 33 files changed, 280 insertions(+), 255 deletions(-)
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