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authorTejun Heo <htejun@gmail.com>2006-05-15 20:58:12 +0900
committerTejun Heo <htejun@gmail.com>2006-05-15 20:58:12 +0900
commitad9e27624479bd167dd7eac0cea4bb3ad13bc926 (patch)
tree47b863c91509a29c9b0f760faa52d60a95272ba6 /include/linux/libata.h
parentdafadcde8d4dc5ea8c742faa7ff4403336b542b8 (diff)
[PATCH] libata-eh-fw: update ata_scsi_error() for new EH
Update ata_scsi_error() for new EH. ata_scsi_error() is responsible for claiming timed out qcs and invoking ->error_handler in safe and synchronized manner. As the state of the controller is unknown if a qc has timed out, the port is frozen in such cases. Note that ata_scsi_timed_out() isn't used for new EH. This is because a timed out qc cannot be claimed by EH without freezing the port and freezing the port in ata_scsi_timed_out() results in unnecessary abortion of other active qcs. ata_scsi_timed_out() can be removed once all drivers are converted to new EH. While at it, add 'TODO: kill' comments to old EH functions. Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 6758b4d374a..5ad50163c8e 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -225,6 +225,9 @@ enum {
ATA_PORT_PRIMARY = (1 << 0),
ATA_PORT_SECONDARY = (1 << 1),
+ /* max repeat if error condition is still set after ->error_handler */
+ ATA_EH_MAX_REPEAT = 5,
+
/* how hard are we gonna try to probe/recover devices */
ATA_PROBE_MAX_TRIES = 3,
};