vhost: enable log_shmfd protocol feature

To claim that we support vhost-user live migration support:
SET_LOG_BASE request will be send only when this feature flag
is set.

Besides this flag, we actually need another feature flag set
to make vhost-user live migration work: VHOST_F_LOG_ALL.
Which, however, has been enabled long time ago.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Tested-by: Pavel Fedin <p.fedin@samsung.com>

diff --git a/doc/guides/rel_notes/release_16_04.rst b/doc/guides/rel_notes/release_16_04.rst
index eb1b3b2..5786f74 100644 (file)
--- a/doc/guides/rel_notes/release_16_04.rst
+++ b/doc/guides/rel_notes/release_16_04.rst
@@ -44,6 +44,8 @@ This section should contain new features added in this release. Sample format:
   Add the offload and negotiation of checksum and TSO between vhost-user and
   vanilla Linux virtio guest.
 
+* **Added vhost-user live migration support.**
+
 
 Resolved Issues
 ---------------

diff --git a/lib/librte_vhost/vhost_user/virtio-net-user.h b/lib/librte_vhost/vhost_user/virtio-net-user.h
index 1e9ff9a..28213f3 100644 (file)
--- a/lib/librte_vhost/vhost_user/virtio-net-user.h
+++ b/lib/librte_vhost/vhost_user/virtio-net-user.h
@@ -38,9 +38,11 @@
 #include "vhost-net-user.h"
 
 #define VHOST_USER_PROTOCOL_F_MQ       0
+#define VHOST_USER_PROTOCOL_F_LOG_SHMFD        1
 #define VHOST_USER_PROTOCOL_F_RARP     2
 
 #define VHOST_USER_PROTOCOL_FEATURES   ((1ULL << VHOST_USER_PROTOCOL_F_MQ) | \
+                                        (1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) |\
                                         (1ULL << VHOST_USER_PROTOCOL_F_RARP))
 
 int user_set_mem_table(struct vhost_device_ctx, struct VhostUserMsg *);