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| author | hrs <hrs@FreeBSD.org> | 2011-06-11 06:56:26 +0000 |
|---|---|---|
| committer | hrs <hrs@FreeBSD.org> | 2011-06-11 06:56:26 +0000 |
| commit | b2a6f5600367e61c439c79db2317d4619960e2ce (patch) | |
| tree | b813a06aa0583761055c631f2a5c54ae5943b77b /sys/xen/interface/io/xenbus.h | |
| parent | d4f481b2900357dc1f0d48b9f4e052a920909b02 (diff) | |
| parent | c8e3d11e24e29c032a1ed9d46c65d8f10e9f0030 (diff) | |
| download | FreeBSD-src-b2a6f5600367e61c439c79db2317d4619960e2ce.zip FreeBSD-src-b2a6f5600367e61c439c79db2317d4619960e2ce.tar.gz | |
Merge from HEAD@222975.
Diffstat (limited to 'sys/xen/interface/io/xenbus.h')
| -rw-r--r-- | sys/xen/interface/io/xenbus.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/xen/interface/io/xenbus.h b/sys/xen/interface/io/xenbus.h index 5e24f31..672c7d4 100644 --- a/sys/xen/interface/io/xenbus.h +++ b/sys/xen/interface/io/xenbus.h @@ -64,6 +64,15 @@ enum xenbus_state { /* * Closed: No connection exists between front and back end. + * + * For backend devices with the "online" attribute, the front can + * request a reconnect at any time. To handle this transition + * gracefully, backend devices must reinitialize any XenStore data + * used to negotiate features with a peer before transitioning to + * the closed state. When a reconnect request occurs, the + * XenBus backend support code will automatically transition the + * backend device from Closed to InitWait, kicking off the ring + * and feature negotiation process. */ XenbusStateClosed = 6, |
