vhost: Improve data path

[vpp.git] / vnet / vnet / devices / virtio / vhost-user.h

diff --git a/vnet/vnet/devices/virtio/vhost-user.h b/vnet/vnet/devices/virtio/vhost-user.h
index ab0128a..3083b61 100644 (file)
--- a/vnet/vnet/devices/virtio/vhost-user.h
+++ b/vnet/vnet/devices/virtio/vhost-user.h
@@ -257,14 +257,42 @@ typedef struct
   u16 qid;
 } vhost_iface_and_queue_t;
 
+typedef struct
+{
+  uword dst;
+  uword src;
+  u32 len;
+} vhost_copy_t;
+
+typedef struct
+{
+  u16 qid; /** The interface queue index (Not the virtio vring idx) */
+  u16 device_index; /** The device index */
+  u32 virtio_ring_flags; /** Runtime queue flags  **/
+  u16 first_desc_len; /** Length of the first data descriptor **/
+  virtio_net_hdr_mrg_rxbuf_t hdr; /** Virtio header **/
+} vhost_trace_t;
+
+
+#define VHOST_USER_RX_BUFFERS_N (2 * VLIB_FRAME_SIZE + 2)
+#define VHOST_USER_COPY_ARRAY_N (4 * VLIB_FRAME_SIZE)
+
 typedef struct
 {
   vhost_iface_and_queue_t *rx_queues;
+  u32 rx_buffers_len;
+  u32 rx_buffers[VHOST_USER_RX_BUFFERS_N];
+
+  virtio_net_hdr_mrg_rxbuf_t tx_headers[VLIB_FRAME_SIZE];
+  vhost_copy_t copy[VHOST_USER_COPY_ARRAY_N];
+
+  /* This is here so it doesn't end-up
+   * using stack or registers. */
+  vhost_trace_t *current_trace;
 } vhost_cpu_t;
 
 typedef struct
 {
-  u32 **rx_buffers;
   u32 mtu_bytes;
   vhost_user_intf_t *vhost_user_interfaces;
   u32 *show_dev_instance_by_real_dev_instance;