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authorTejun Heo <htejun@gmail.com>2006-05-15 20:58:22 +0900
committerTejun Heo <htejun@gmail.com>2006-05-15 20:58:22 +0900
commit022bdb075b9e1f224088a0b268de56268d7bc5b6 (patch)
tree05878e28202f0a86bdcc32ae5d995db9f15042da /include/linux/libata.h
parentf3e81b19aac23c0e8c55d5961324ef7de44c23bb (diff)
[PATCH] libata-eh: implement new EH
Implement new EH. The exported interface is ata_do_eh() which is to be called from ->error_handler and performs the following steps to recover the failed port. ata_eh_autopsy() : analyze SError/TF, determine the cause of failure and required recovery actions and record it in ap->eh_context ata_eh_report() : report the failure to user ata_eh_recover() : perform recovery actions described in ap->eh_context ata_eh_finish() : finish failed qcs LLDDs can customize error handling by modifying eh_context before calling ata_do_eh() or, if necessary, doing so inbetween each major steps by calling each step explicitly. Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 298f9918e37..9fe46073cf8 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -247,6 +247,8 @@ enum {
/* how hard are we gonna try to probe/recover devices */
ATA_PROBE_MAX_TRIES = 3,
+ ATA_EH_RESET_TRIES = 3,
+ ATA_EH_DEV_TRIES = 3,
};
enum hsm_task_states {
@@ -727,6 +729,9 @@ extern void ata_eh_thaw_port(struct ata_port *ap);
extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
+extern void ata_do_eh(struct ata_port *ap, ata_reset_fn_t softreset,
+ ata_reset_fn_t hardreset, ata_postreset_fn_t postreset);
+
/*
* printk helpers
*/