From da298bde46abb855cbdf7818bb34a0b5339060cc Mon Sep 17 00:00:00 2001
From: Alberto Compagno <acompagn+fdio@cisco.com>
Date: Mon, 2 Dec 2019 19:41:05 +0000
Subject: [HICN-427] Producer and consumer socket created with vapi

Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>
Change-Id: I44142385b191b4c9b5c4bb418bfbd06a5e102eec
---
 libtransport/src/hicn/transport/core/memif_vapi.c | 130 ++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 libtransport/src/hicn/transport/core/memif_vapi.c

(limited to 'libtransport/src/hicn/transport/core/memif_vapi.c')

diff --git a/libtransport/src/hicn/transport/core/memif_vapi.c b/libtransport/src/hicn/transport/core/memif_vapi.c
new file mode 100644
index 000000000..b0bf77e40
--- /dev/null
+++ b/libtransport/src/hicn/transport/core/memif_vapi.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <hicn/transport/config.h>
+
+#ifdef __vpp__
+
+#include <vppinfra/clib.h>
+#include <hicn/transport/core/memif_vapi.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <semaphore.h>
+#include <string.h>
+#include <sys/stat.h>
+
+DEFINE_VAPI_MSG_IDS_MEMIF_API_JSON
+
+static vapi_error_e memif_details_cb(vapi_ctx_t ctx,
+                                     void *callback_ctx,
+                                     vapi_error_e rv,
+                                     bool is_last,
+                                     vapi_payload_memif_details *reply) {
+  uint32_t *last_memif_id = (uint32_t *)callback_ctx;
+  uint32_t current_memif_id = 0;
+  if (reply != NULL) {
+    current_memif_id = reply->id;
+  }
+  else {
+    return rv;
+  }
+
+  if (current_memif_id >= *last_memif_id) {
+    *last_memif_id = current_memif_id + 1;
+  }
+
+  return rv;
+}
+
+int memif_vapi_get_next_memif_id(vapi_ctx_t ctx,
+                                uint32_t *memif_id) {
+
+  vapi_msg_memif_dump * msg = vapi_alloc_memif_dump(ctx);
+  return vapi_memif_dump(ctx, msg, memif_details_cb, memif_id);
+}
+
+static vapi_error_e memif_create_cb(vapi_ctx_t ctx,
+                              void *callback_ctx,
+                              vapi_error_e rv,
+                              bool is_last,
+                              vapi_payload_memif_create_reply *reply) {
+  memif_output_params_t *output_params = (memif_output_params_t *)callback_ctx;
+
+  if (reply == NULL)
+    return rv;
+
+  output_params->sw_if_index = reply->sw_if_index;
+
+  return rv;
+}
+
+int memif_vapi_create_memif(vapi_ctx_t ctx,
+                            memif_create_params_t *input_params,
+                            memif_output_params_t *output_params) {
+  vapi_msg_memif_create * msg = vapi_alloc_memif_create(ctx);
+
+  if (input_params->socket_id == ~0) {
+    // invalid socket-id
+    return -1;
+  }
+
+  if (!is_pow2(input_params->ring_size)) {
+    // ring size must be power of 2
+    return -1;
+  }
+
+  if (input_params->rx_queues > 255 || input_params->rx_queues < 1) {
+    // rx queue must be between 1 - 255
+    return -1;
+  }
+
+  if (input_params->tx_queues > 255 || input_params->tx_queues < 1) {
+    // tx queue must be between 1 - 255
+    return -1;
+  }
+
+  msg->payload.role = input_params->role;
+  msg->payload.mode = input_params->mode;
+  msg->payload.rx_queues = input_params->rx_queues;
+  msg->payload.tx_queues = input_params->tx_queues;
+  msg->payload.id = input_params->id;
+  msg->payload.socket_id = input_params->socket_id;
+  msg->payload.ring_size = input_params->ring_size;
+  msg->payload.buffer_size = input_params->buffer_size;
+
+  return vapi_memif_create(ctx, msg, memif_create_cb, output_params);
+
+}
+
+static vapi_error_e memif_delete_cb(vapi_ctx_t ctx,
+                              void *callback_ctx,
+                              vapi_error_e rv,
+                              bool is_last,
+                              vapi_payload_memif_delete_reply *reply) {
+  if(reply == NULL)
+    return rv;
+  
+  return reply->retval;
+}
+
+int memif_vapi_delete_memif(vapi_ctx_t ctx,
+                                  uint32_t sw_if_index) {
+  vapi_msg_memif_delete * msg = vapi_alloc_memif_delete(ctx);
+
+  msg->payload.sw_if_index = sw_if_index;
+
+  return vapi_memif_delete(ctx, msg, memif_delete_cb, NULL);
+}
+
+#endif  // __vpp__
\ No newline at end of file
-- 
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