[dpdk-dev] [PATCH] vhost: log Virtio and Vhost-user negotiated features

[Maxime Coquelin <maxime.coquelin@redhat.com>]

Having this info logged by default when analysing bug reports
has proved to be useful.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 lib/librte_vhost/vhost_user.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index c9e29ece8..370864865 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -284,6 +284,8 @@ vhost_user_set_features(struct virtio_net **pdev, struct VhostUserMsg *msg,
 	} else {
 		dev->vhost_hlen = sizeof(struct virtio_net_hdr);
 	}
+	RTE_LOG(INFO, VHOST_CONFIG,
+		"Negotiated Virtio features: 0x%" PRIx64 "\n", dev->features);
 	VHOST_LOG_DEBUG(VHOST_CONFIG,
 		"(%d) mergeable RX buffers %s, virtio 1 %s\n",
 		dev->vid,
@@ -1406,6 +1408,9 @@ vhost_user_set_protocol_features(struct virtio_net **pdev,
 	}
 
 	dev->protocol_features = protocol_features;
+	RTE_LOG(INFO, VHOST_CONFIG,
+		"Negotiated Vhost-user protocol features: 0x%" PRIx64 "\n",
+		dev->protocol_features);
 
 	return RTE_VHOST_MSG_RESULT_OK;
 }
-- 
2.21.0