From: Jens Freimann <jfreimann@redhat.com>
Date: Fri, 6 Jul 2018 07:07:08 +0000 (+0200)
Subject: vhost: add virtio packed virtqueue defines
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=297b1e7350f6933114e0945ca00a1814a258acae;p=dpdk.git

vhost: add virtio packed virtqueue defines

Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Acked-by: Tiwei Bie <tiwei.bie@intel.com>
---

diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 79e3117d2c..83c028a1b5 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -192,6 +192,26 @@ struct vhost_msg {
  #define VIRTIO_F_VERSION_1 32
 #endif
 
+/* Declare packed ring related bits for older kernels */
+#ifndef VIRTIO_F_RING_PACKED
+
+#define VIRTIO_F_RING_PACKED 34
+
+#define VRING_DESC_F_NEXT	1
+#define VRING_DESC_F_WRITE	2
+#define VRING_DESC_F_INDIRECT	4
+
+#define VRING_DESC_F_AVAIL	(1ULL << 7)
+#define VRING_DESC_F_USED	(1ULL << 15)
+
+struct vring_packed_desc {
+	uint64_t addr;
+	uint32_t len;
+	uint16_t id;
+	uint16_t flags;
+};
+#endif
+
 /*
  * Available and used descs are in same order
  */