af_packet: move to plugin
Type: improvement Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I3ec857adb3a9e8a778072a202a4d23f4101e83b2
This commit is contained in:
Mohsin Kazmi
committed by
Dave Wallace
Dave Wallace
parent
bb98aac422
commit
bca76580b1
253
src/plugins/af_packet/af_packet_api.c
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253
src/plugins/af_packet/af_packet_api.c
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/*
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*------------------------------------------------------------------
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* af_packet_api.c - af-packet api
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*
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* Copyright (c) 2016 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*------------------------------------------------------------------
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*/
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#include <vnet/vnet.h>
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#include <vlibmemory/api.h>
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#include <vnet/interface.h>
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#include <vnet/api_errno.h>
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#include <af_packet/af_packet.h>
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#include <vnet/format_fns.h>
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#include <af_packet/af_packet.api_enum.h>
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#include <af_packet/af_packet.api_types.h>
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#define REPLY_MSG_ID_BASE msg_id_base
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#include <vlibapi/api_helper_macros.h>
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static u16 msg_id_base;
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static void
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vl_api_af_packet_create_t_handler (vl_api_af_packet_create_t * mp)
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{
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af_packet_create_if_arg_t _arg, *arg = &_arg;
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vl_api_af_packet_create_reply_t *rmp;
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int rv = 0;
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clib_memset (arg, 0, sizeof (*arg));
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arg->host_if_name = format (0, "%s", mp->host_if_name);
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vec_add1 (arg->host_if_name, 0);
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arg->hw_addr = mp->use_random_hw_addr ? 0 : mp->hw_addr;
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arg->mode = AF_PACKET_IF_MODE_ETHERNET;
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// Default flags
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arg->flags = AF_PACKET_IF_FLAGS_QDISC_BYPASS | AF_PACKET_IF_FLAGS_CKSUM_GSO;
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rv = af_packet_create_if (arg);
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vec_free (arg->host_if_name);
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REPLY_MACRO2 (VL_API_AF_PACKET_CREATE_REPLY, ({
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rmp->sw_if_index = clib_host_to_net_u32 (arg->sw_if_index);
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}));
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}
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static void
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vl_api_af_packet_create_v2_t_handler (vl_api_af_packet_create_v2_t *mp)
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{
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af_packet_create_if_arg_t _arg, *arg = &_arg;
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vl_api_af_packet_create_v2_reply_t *rmp;
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int rv = 0;
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clib_memset (arg, 0, sizeof (*arg));
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arg->host_if_name = format (0, "%s", mp->host_if_name);
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vec_add1 (arg->host_if_name, 0);
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// Default number of rx/tx queue(s)
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arg->num_rxqs = 1;
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arg->num_txqs = 1;
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arg->rx_frame_size = clib_net_to_host_u32 (mp->rx_frame_size);
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arg->tx_frame_size = clib_net_to_host_u32 (mp->tx_frame_size);
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arg->rx_frames_per_block = clib_net_to_host_u32 (mp->rx_frames_per_block);
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arg->tx_frames_per_block = clib_net_to_host_u32 (mp->tx_frames_per_block);
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arg->hw_addr = mp->use_random_hw_addr ? 0 : mp->hw_addr;
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arg->mode = AF_PACKET_IF_MODE_ETHERNET;
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// Default flags
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arg->flags = AF_PACKET_IF_FLAGS_QDISC_BYPASS | AF_PACKET_IF_FLAGS_CKSUM_GSO;
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if (mp->num_rx_queues > 1)
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arg->num_rxqs = clib_net_to_host_u16 (mp->num_rx_queues);
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rv = af_packet_create_if (arg);
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vec_free (arg->host_if_name);
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REPLY_MACRO2 (VL_API_AF_PACKET_CREATE_V2_REPLY, ({
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rmp->sw_if_index = clib_host_to_net_u32 (arg->sw_if_index);
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}));
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}
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static void
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vl_api_af_packet_create_v3_t_handler (vl_api_af_packet_create_v3_t *mp)
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{
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af_packet_create_if_arg_t _arg, *arg = &_arg;
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vl_api_af_packet_create_v3_reply_t *rmp;
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int rv = 0;
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clib_memset (arg, 0, sizeof (*arg));
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arg->host_if_name = format (0, "%s", mp->host_if_name);
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vec_add1 (arg->host_if_name, 0);
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// Default number of rx/tx queue(s)
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arg->num_rxqs = 1;
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arg->num_txqs = 1;
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arg->rx_frame_size = clib_net_to_host_u32 (mp->rx_frame_size);
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arg->tx_frame_size = clib_net_to_host_u32 (mp->tx_frame_size);
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arg->rx_frames_per_block = clib_net_to_host_u32 (mp->rx_frames_per_block);
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arg->tx_frames_per_block = clib_net_to_host_u32 (mp->tx_frames_per_block);
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arg->hw_addr = mp->use_random_hw_addr ? 0 : mp->hw_addr;
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switch (clib_net_to_host_u32 (mp->mode))
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{
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case AF_PACKET_API_MODE_ETHERNET:
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arg->mode = AF_PACKET_IF_MODE_ETHERNET;
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break;
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case AF_PACKET_API_MODE_IP:
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arg->mode = AF_PACKET_IF_MODE_IP;
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break;
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default:
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arg->sw_if_index = ~0;
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rv = VNET_ERR_INVALID_VALUE;
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goto error;
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}
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STATIC_ASSERT (((int) AF_PACKET_API_FLAG_QDISC_BYPASS ==
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(int) AF_PACKET_IF_FLAGS_QDISC_BYPASS),
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"af-packet qdisc-bypass api flag mismatch");
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STATIC_ASSERT (
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((int) AF_PACKET_API_FLAG_CKSUM_GSO == (int) AF_PACKET_IF_FLAGS_CKSUM_GSO),
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"af-packet checksum/gso offload api flag mismatch");
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STATIC_ASSERT (
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((int) AF_PACKET_API_FLAG_VERSION_2 == (int) AF_PACKET_IF_FLAGS_VERSION_2),
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"af-packet version 2 api flag mismatch");
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// Default flags
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arg->flags = clib_net_to_host_u32 (mp->flags);
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if (clib_net_to_host_u16 (mp->num_rx_queues) > 1)
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arg->num_rxqs = clib_net_to_host_u16 (mp->num_rx_queues);
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if (clib_net_to_host_u16 (mp->num_tx_queues) > 1)
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arg->num_txqs = clib_net_to_host_u16 (mp->num_tx_queues);
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arg->is_v2 = (arg->flags & AF_PACKET_API_FLAG_VERSION_2) ? 1 : 0;
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rv = af_packet_create_if (arg);
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error:
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vec_free (arg->host_if_name);
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REPLY_MACRO2 (VL_API_AF_PACKET_CREATE_V3_REPLY, ({
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rmp->sw_if_index = clib_host_to_net_u32 (arg->sw_if_index);
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}));
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}
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static void
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vl_api_af_packet_delete_t_handler (vl_api_af_packet_delete_t * mp)
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{
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vl_api_af_packet_delete_reply_t *rmp;
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int rv = 0;
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u8 *host_if_name = NULL;
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host_if_name = format (0, "%s", mp->host_if_name);
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vec_add1 (host_if_name, 0);
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rv = af_packet_delete_if (host_if_name);
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vec_free (host_if_name);
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REPLY_MACRO (VL_API_AF_PACKET_DELETE_REPLY);
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}
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static void
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vl_api_af_packet_set_l4_cksum_offload_t_handler
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(vl_api_af_packet_set_l4_cksum_offload_t * mp)
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{
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vl_api_af_packet_delete_reply_t *rmp;
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int rv = 0;
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rv = af_packet_set_l4_cksum_offload (ntohl (mp->sw_if_index), mp->set);
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REPLY_MACRO (VL_API_AF_PACKET_SET_L4_CKSUM_OFFLOAD_REPLY);
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}
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static void
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af_packet_send_details (vpe_api_main_t * am,
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vl_api_registration_t * reg,
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af_packet_if_detail_t * af_packet_if, u32 context)
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{
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vl_api_af_packet_details_t *mp;
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mp = vl_msg_api_alloc (sizeof (*mp));
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clib_memset (mp, 0, sizeof (*mp));
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mp->_vl_msg_id = htons (REPLY_MSG_ID_BASE + VL_API_AF_PACKET_DETAILS);
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mp->sw_if_index = htonl (af_packet_if->sw_if_index);
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clib_memcpy (mp->host_if_name, af_packet_if->host_if_name,
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MIN (ARRAY_LEN (mp->host_if_name) - 1,
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strlen ((const char *) af_packet_if->host_if_name)));
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mp->context = context;
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vl_api_send_msg (reg, (u8 *) mp);
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}
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static void
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vl_api_af_packet_dump_t_handler (vl_api_af_packet_dump_t * mp)
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{
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int rv;
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vpe_api_main_t *am = &vpe_api_main;
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vl_api_registration_t *reg;
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af_packet_if_detail_t *out_af_packet_ifs = NULL;
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af_packet_if_detail_t *af_packet_if = NULL;
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reg = vl_api_client_index_to_registration (mp->client_index);
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if (!reg)
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return;
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rv = af_packet_dump_ifs (&out_af_packet_ifs);
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if (rv)
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return;
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vec_foreach (af_packet_if, out_af_packet_ifs)
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{
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af_packet_send_details (am, reg, af_packet_if, mp->context);
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}
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vec_free (out_af_packet_ifs);
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}
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#include <af_packet/af_packet.api.c>
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static clib_error_t *
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af_packet_api_hookup (vlib_main_t * vm)
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{
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/*
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* Set up the (msg_name, crc, message-id) table
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*/
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REPLY_MSG_ID_BASE = setup_message_id_table ();
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return 0;
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}
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VLIB_API_INIT_FUNCTION (af_packet_api_hookup);
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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