vhost: improve performance by supporting large buffer

[dpdk.git] / lib / librte_vhost / rte_vhost.h

diff --git a/lib/librte_vhost/rte_vhost.h b/lib/librte_vhost/rte_vhost.h
index 140d79c..7b5dc87 100644 (file)
--- a/lib/librte_vhost/rte_vhost.h
+++ b/lib/librte_vhost/rte_vhost.h
@@ -30,6 +30,10 @@ extern "C" {
 #define RTE_VHOST_USER_DEQUEUE_ZERO_COPY       (1ULL << 2)
 #define RTE_VHOST_USER_IOMMU_SUPPORT   (1ULL << 3)
 #define RTE_VHOST_USER_POSTCOPY_SUPPORT                (1ULL << 4)
+/* support mbuf with external buffer attached */
+#define RTE_VHOST_USER_EXTBUF_SUPPORT  (1ULL << 5)
+/* support only linear buffers (no chained mbufs) */
+#define RTE_VHOST_USER_LINEARBUF_SUPPORT       (1ULL << 6)
 
 /** Protocol features. */
 #ifndef VHOST_USER_PROTOCOL_F_MQ