summaryrefslogtreecommitdiffstats
path: root/include/linux/libata.h
diff options
context:
space:
mode:
authorTejun Heo <htejun@gmail.com>2006-05-31 18:28:03 +0900
committerTejun Heo <htejun@gmail.com>2006-05-31 18:28:03 +0900
commit084fe639b81c4d418a2cf714acb0475e3713cb73 (patch)
tree55afc26dbb866488b69e49b1742863d1293f6612 /include/linux/libata.h
parent0ea035a3d1ad948096e205f08f350c03d5cea453 (diff)
downloadop-kernel-dev-084fe639b81c4d418a2cf714acb0475e3713cb73.zip
op-kernel-dev-084fe639b81c4d418a2cf714acb0475e3713cb73.tar.gz
[PATCH] libata-hp: implement hotplug
Implement ATA part of hotplug. To avoid probing broken devices over and over again, disabled devices are not automatically detached. They are detached only if probing is requested for the device or the associated port is offline. Also, to avoid infinite probing loop, Each device is probed only once per EH run. As SATA PHY status is fragile, devices are detached only after it has used up its recovery chances unless explicitly requested by LLDD or user (LLDD may request direct detach if, for example, it supports cold presence detection). Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a1ceb5b..5697194 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -824,6 +824,19 @@ extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
(ehi)->desc_len = 0; \
} while (0)
+static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi)
+{
+ if (ehi->flags & ATA_EHI_HOTPLUGGED)
+ return;
+
+ ehi->flags |= ATA_EHI_HOTPLUGGED;
+ ehi->hotplug_timestamp = jiffies;
+
+ ehi->err_mask |= AC_ERR_ATA_BUS;
+ ehi->action |= ATA_EH_SOFTRESET;
+ ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
+}
+
/*
* qc helpers
*/
OpenPOWER on IntegriCloud