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| author | Gwendal Grignou <gwendal@google.com> | 2010-08-31 16:20:36 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-09-09 22:31:55 -0400 |
| commit | ea3c64506ea7965f86f030155e6fdef381de10e2 (patch) | |
| tree | e98d1fbe34fd0c1c81d0fb08b3314f6f059eb494 /include | |
| parent | e2f3d75fc0e4a0d03c61872bad39ffa2e74a04ff (diff) | |
| download | lwn-ea3c64506ea7965f86f030155e6fdef381de10e2.tar.gz lwn-ea3c64506ea7965f86f030155e6fdef381de10e2.zip | |
libata-sff: Reenable Port Multiplier after libata-sff remodeling.
Keep track of the link on the which the current request is in progress.
It allows support of links behind port multiplier.
Not all libata-sff is PMP compliant. Code for native BMDMA controller
does not take in accound PMP.
Tested on Marvell 7042 and Sil7526.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/libata.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 7de282d8bedf..45fb2967b66d 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -724,6 +724,7 @@ struct ata_port { struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */ u8 ctl; /* cache of ATA control register */ u8 last_ctl; /* Cache last written value */ + struct ata_link* sff_pio_task_link; /* link currently used */ struct delayed_work sff_pio_task; #ifdef CONFIG_ATA_BMDMA struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */ @@ -1595,7 +1596,7 @@ extern void ata_sff_irq_on(struct ata_port *ap); extern void ata_sff_irq_clear(struct ata_port *ap); extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, u8 status, int in_wq); -extern void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay); +extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay); extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc); extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc); extern unsigned int ata_sff_port_intr(struct ata_port *ap, |