[dpdk-dev] [PATCH 06/17] vhost: introduce API to fetch negotiated features

Yuanhan Liu yuanhan.liu at linux.intel.com
Fri Mar 3 10:51:11 CET 2017


Signed-off-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>
---
 lib/librte_vhost/rte_vhost_version.map |  1 +
 lib/librte_vhost/rte_virtio_net.h      |  1 +
 lib/librte_vhost/vhost.c               | 12 ++++++++++++
 3 files changed, 14 insertions(+)

diff --git a/lib/librte_vhost/rte_vhost_version.map b/lib/librte_vhost/rte_vhost_version.map
index b890da6..85a2796 100644
--- a/lib/librte_vhost/rte_vhost_version.map
+++ b/lib/librte_vhost/rte_vhost_version.map
@@ -35,6 +35,7 @@ DPDK_17.05 {
 	rte_vhost_driver_enable_features;
 	rte_vhost_driver_get_features;
 	rte_vhost_driver_set_features;
+	rte_vhost_get_negotiated_features
 	rte_vhost_get_vhost_memory;
 
 } DPDK_16.07;
diff --git a/lib/librte_vhost/rte_virtio_net.h b/lib/librte_vhost/rte_virtio_net.h
index eddf0f4..e7b1599 100644
--- a/lib/librte_vhost/rte_virtio_net.h
+++ b/lib/librte_vhost/rte_virtio_net.h
@@ -210,5 +210,6 @@ uint16_t rte_vhost_dequeue_burst(int vid, uint16_t queue_id,
 	struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count);
 
 int rte_vhost_get_vhost_memory(int vid, struct rte_vhost_memory **mem);
+uint64_t rte_vhost_get_negotiated_features(int vid);
 
 #endif /* _VIRTIO_NET_H_ */
diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index eee229a..8046aef 100644
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.c
@@ -340,6 +340,18 @@ struct virtio_net *
 	return 0;
 }
 
+uint64_t
+rte_vhost_get_negotiated_features(int vid)
+{
+	struct virtio_net *dev;
+
+	dev = get_device(vid);
+	if (!dev)
+		return -1;
+
+	return dev->features;
+}
+
 int
 rte_vhost_get_vhost_memory(int vid, struct rte_vhost_memory **mem)
 {
-- 
1.9.0



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