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authorTejun Heo <htejun@gmail.com>2006-01-24 17:05:22 +0900
committerJeff Garzik <jgarzik@pobox.com>2006-01-26 23:20:14 -0500
commitc19ba8af4f104cca28d548cac55c128b28dd31fb (patch)
tree2624b544c0f8294a712b3255695b1e178943255a /include/linux/libata.h
parentb4dc7623c1bb258b66418261dab40f0e4cfc6d42 (diff)
[PATCH] libata: new ->probe_reset operation
Add new ->probe_reset operation to ata_port_operations obsoleting ->phy_reset. The main difference from ->phy_reset is that the new operation is not allowed to manipulate libata internals directly. It's not allowed to configure or disable the port or devices. It can only succeed or fail and classify attached devices into passed @classes. This change gives more control to higher level and eases sharing reset methods with EH. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 45646f6ebbf..a84d1c3a542 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -148,9 +148,9 @@ enum {
ATA_FLAG_PORT_DISABLED = (1 << 2), /* port is disabled, ignore it */
ATA_FLAG_SATA = (1 << 3),
ATA_FLAG_NO_LEGACY = (1 << 4), /* no legacy mode check */
- ATA_FLAG_SRST = (1 << 5), /* use ATA SRST, not E.D.D. */
+ ATA_FLAG_SRST = (1 << 5), /* (obsolete) use ATA SRST, not E.D.D. */
ATA_FLAG_MMIO = (1 << 6), /* use MMIO, not PIO */
- ATA_FLAG_SATA_RESET = (1 << 7), /* use COMRESET */
+ ATA_FLAG_SATA_RESET = (1 << 7), /* (obsolete) use COMRESET */
ATA_FLAG_PIO_DMA = (1 << 8), /* PIO cmds via DMA */
ATA_FLAG_NOINTR = (1 << 9), /* FIXME: Remove this once
* proper HSM is in place. */
@@ -419,7 +419,9 @@ struct ata_port_operations {
u8 (*check_altstatus)(struct ata_port *ap);
void (*dev_select)(struct ata_port *ap, unsigned int device);
- void (*phy_reset) (struct ata_port *ap);
+ void (*phy_reset) (struct ata_port *ap); /* obsolete */
+ int (*probe_reset) (struct ata_port *ap, unsigned int *classes);
+
void (*post_set_mode) (struct ata_port *ap);
int (*check_atapi_dma) (struct ata_queued_cmd *qc);