memif: support dma option

[vpp.git] / src / plugins / memif / memif_api.c

diff --git a/src/plugins/memif/memif_api.c b/src/plugins/memif/memif_api.c
index 1a58e4c..16d3686 100644 (file)
--- a/src/plugins/memif/memif_api.c
+++ b/src/plugins/memif/memif_api.c
@@ -203,6 +203,98 @@ reply:
   /* *INDENT-ON* */
 }
 
+/**
+ * @brief Message handler for memif_create_v2 API.
+ * @param mp vl_api_memif_create_v2_t * mp the api message
+ */
+void
+vl_api_memif_create_v2_t_handler (vl_api_memif_create_v2_t *mp)
+{
+  memif_main_t *mm = &memif_main;
+  vlib_main_t *vm = vlib_get_main ();
+  vl_api_memif_create_reply_t *rmp;
+  memif_create_if_args_t args = { 0 };
+  u32 ring_size = MEMIF_DEFAULT_RING_SIZE;
+  static const u8 empty_hw_addr[6];
+  int rv = 0;
+  mac_address_t mac;
+
+  /* id */
+  args.id = clib_net_to_host_u32 (mp->id);
+
+  /* socket-id */
+  args.socket_id = clib_net_to_host_u32 (mp->socket_id);
+
+  /* secret */
+  mp->secret[ARRAY_LEN (mp->secret) - 1] = 0;
+  if (strlen ((char *) mp->secret) > 0)
+    {
+      vec_validate (args.secret, strlen ((char *) mp->secret));
+      strncpy ((char *) args.secret, (char *) mp->secret,
+              vec_len (args.secret));
+    }
+
+  /* role */
+  args.is_master = (ntohl (mp->role) == MEMIF_ROLE_API_MASTER);
+
+  /* mode */
+  args.mode = ntohl (mp->mode);
+
+  args.is_zero_copy = mp->no_zero_copy ? 0 : 1;
+
+  args.use_dma = mp->use_dma;
+
+  /* rx/tx queues */
+  if (args.is_master == 0)
+    {
+      args.rx_queues = MEMIF_DEFAULT_RX_QUEUES;
+      args.tx_queues = MEMIF_DEFAULT_TX_QUEUES;
+      if (mp->rx_queues)
+       {
+         args.rx_queues = mp->rx_queues;
+       }
+      if (mp->tx_queues)
+       {
+         args.tx_queues = mp->tx_queues;
+       }
+    }
+
+  /* ring size */
+  if (mp->ring_size)
+    {
+      ring_size = ntohl (mp->ring_size);
+    }
+  if (!is_pow2 (ring_size))
+    {
+      rv = VNET_API_ERROR_INVALID_ARGUMENT;
+      goto reply;
+    }
+  args.log2_ring_size = min_log2 (ring_size);
+
+  /* buffer size */
+  args.buffer_size = MEMIF_DEFAULT_BUFFER_SIZE;
+  if (mp->buffer_size)
+    {
+      args.buffer_size = ntohs (mp->buffer_size);
+    }
+
+  /* MAC address */
+  mac_address_decode (mp->hw_addr, &mac);
+  if (memcmp (&mac, empty_hw_addr, 6) != 0)
+    {
+      memcpy (args.hw_addr, &mac, 6);
+      args.hw_addr_set = 1;
+    }
+
+  rv = vnet_api_error (memif_create_if (vm, &args));
+
+  vec_free (args.secret);
+
+reply:
+  REPLY_MACRO2 (VL_API_MEMIF_CREATE_V2_REPLY,
+               ({ rmp->sw_if_index = htonl (args.sw_if_index); }));
+}
+
 /**
  * @brief Message handler for memif_delete API.
  * @param mp vl_api_memif_delete_t * mp the api message