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-rw-r--r--libtransport/src/io_modules/memif/memif_vapi.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/libtransport/src/io_modules/memif/memif_vapi.c b/libtransport/src/io_modules/memif/memif_vapi.c
new file mode 100644
index 000000000..b3da2b012
--- /dev/null
+++ b/libtransport/src/io_modules/memif/memif_vapi.c
@@ -0,0 +1,127 @@
+/*
+ * 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 <fcntl.h>
+#include <hicn/transport/config.h>
+#include <inttypes.h>
+#include <io_modules/memif/memif_vapi.h>
+#include <semaphore.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <vapi/vapi_safe.h>
+#include <vppinfra/clib.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_lock();
+ vapi_msg_memif_dump *msg = vapi_alloc_memif_dump(ctx);
+ int ret = vapi_memif_dump(ctx, msg, memif_details_cb, memif_id);
+ vapi_unlock();
+ return ret;
+}
+
+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_lock();
+ vapi_msg_memif_create *msg = vapi_alloc_memif_create(ctx);
+
+ int ret = 0;
+ if (input_params->socket_id == ~0) {
+ // invalid socket-id
+ ret = -1;
+ goto END;
+ }
+
+ if (!is_pow2(input_params->ring_size)) {
+ // ring size must be power of 2
+ ret = -1;
+ goto END;
+ }
+
+ if (input_params->rx_queues > 255 || input_params->rx_queues < 1) {
+ // rx queue must be between 1 - 255
+ ret = -1;
+ goto END;
+ }
+
+ if (input_params->tx_queues > 255 || input_params->tx_queues < 1) {
+ // tx queue must be between 1 - 255
+ ret = -1;
+ goto END;
+ }
+
+ 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;
+
+ ret = vapi_memif_create(ctx, msg, memif_create_cb, output_params);
+END:
+ vapi_unlock();
+ return ret;
+}
+
+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_lock();
+ vapi_msg_memif_delete *msg = vapi_alloc_memif_delete(ctx);
+
+ msg->payload.sw_if_index = sw_if_index;
+
+ int ret = vapi_memif_delete(ctx, msg, memif_delete_cb, NULL);
+ vapi_unlock();
+ return ret;
+}