diff options
Diffstat (limited to 'doc/guides/prog_guide/vhost_lib.rst')
| -rw-r--r-- | doc/guides/prog_guide/vhost_lib.rst | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/guides/prog_guide/vhost_lib.rst b/doc/guides/prog_guide/vhost_lib.rst index 14d5e675..6b0c6b26 100644 --- a/doc/guides/prog_guide/vhost_lib.rst +++ b/doc/guides/prog_guide/vhost_lib.rst @@ -189,7 +189,12 @@ vhost-user implementation has two options: When the DPDK vhost-user application restarts, DPDK vhost-user will try to connect to the server again. This is how the "reconnect" feature works. - Note: the "reconnect" feature requires **QEMU v2.7** (or above). + .. Note:: + * The "reconnect" feature requires **QEMU v2.7** (or above). + + * The vhost supported features must be exactly the same before and + after the restart. For example, if TSO is disabled and then enabled, + nothing will work and issues undefined might happen. No matter which mode is used, once a connection is established, DPDK vhost-user will start receiving and processing vhost messages from QEMU. |