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/*
* Copyright (c) 2021 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>
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);
// Initialize memif id to 0
*memif_id = 0;
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;
}
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