| /* |
| *------------------------------------------------------------------ |
| * vhost-user_api.c - vhost-user api |
| * |
| * Copyright (c) 2016 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 <vnet/vnet.h> |
| #include <vlibmemory/api.h> |
| |
| #include <vnet/interface.h> |
| #include <vnet/api_errno.h> |
| #include <vhost/vhost_user.h> |
| #include <vnet/ethernet/ethernet.h> |
| #include <vnet/ethernet/ethernet_types_api.h> |
| |
| #include <vnet/format_fns.h> |
| #include <vhost/vhost_user.api_enum.h> |
| #include <vhost/vhost_user.api_types.h> |
| |
| #define REPLY_MSG_ID_BASE msg_id_base |
| #include <vlibapi/api_helper_macros.h> |
| |
| static u16 msg_id_base; |
| |
| static void |
| vl_api_create_vhost_user_if_t_handler (vl_api_create_vhost_user_if_t * mp) |
| { |
| int rv = 0; |
| vl_api_create_vhost_user_if_reply_t *rmp; |
| vnet_main_t *vnm = vnet_get_main (); |
| vlib_main_t *vm = vlib_get_main (); |
| u64 disabled_features = (u64) (0ULL); |
| vhost_user_create_if_args_t args = { 0 }; |
| |
| args.sw_if_index = (u32) ~ 0; |
| args.feature_mask = (u64) ~ (0ULL); |
| if (mp->disable_mrg_rxbuf) |
| disabled_features = VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF); |
| |
| if (mp->disable_indirect_desc) |
| disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC); |
| |
| /* |
| * GSO and PACKED are not supported by feature mask via binary API. We |
| * disable GSO and PACKED feature in the feature mask. They may be enabled |
| * explicitly via enable_gso and enable_packed argument |
| */ |
| disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS | |
| VIRTIO_FEATURE (VIRTIO_F_RING_PACKED); |
| |
| /* EVENT_IDX is disabled by default */ |
| disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX); |
| args.feature_mask &= ~disabled_features; |
| |
| if (mp->use_custom_mac) |
| mac_address_decode (mp->mac_address, (mac_address_t *) args.hwaddr); |
| |
| args.use_custom_mac = mp->use_custom_mac; |
| args.is_server = mp->is_server; |
| args.sock_filename = (char *) mp->sock_filename; |
| args.renumber = mp->renumber; |
| args.custom_dev_instance = ntohl (mp->custom_dev_instance); |
| args.enable_gso = mp->enable_gso; |
| args.enable_packed = mp->enable_packed; |
| rv = vhost_user_create_if (vnm, vm, &args); |
| |
| /* Remember an interface tag for the new interface */ |
| if (rv == 0) |
| { |
| /* If a tag was supplied... */ |
| if (mp->tag[0]) |
| { |
| /* Make sure it's a proper C-string */ |
| mp->tag[ARRAY_LEN (mp->tag) - 1] = 0; |
| u8 *tag = format (0, "%s%c", mp->tag, 0); |
| vnet_set_sw_interface_tag (vnm, tag, args.sw_if_index); |
| } |
| } |
| |
| /* *INDENT-OFF* */ |
| REPLY_MACRO2(VL_API_CREATE_VHOST_USER_IF_REPLY, |
| ({ |
| rmp->sw_if_index = ntohl (args.sw_if_index); |
| })); |
| /* *INDENT-ON* */ |
| } |
| |
| static void |
| vl_api_modify_vhost_user_if_t_handler (vl_api_modify_vhost_user_if_t * mp) |
| { |
| int rv = 0; |
| vl_api_modify_vhost_user_if_reply_t *rmp; |
| u64 disabled_features = (u64) (0ULL); |
| vhost_user_create_if_args_t args = { 0 }; |
| vnet_main_t *vnm = vnet_get_main (); |
| vlib_main_t *vm = vlib_get_main (); |
| |
| args.feature_mask = (u64) ~ (0ULL); |
| /* |
| * GSO and PACKED are not supported by feature mask via binary API. We |
| * disable GSO and PACKED feature in the feature mask. They may be enabled |
| * explicitly via enable_gso and enable_packed argument |
| */ |
| disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS | |
| VIRTIO_FEATURE (VIRTIO_F_RING_PACKED); |
| |
| /* EVENT_IDX is disabled by default */ |
| disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX); |
| args.feature_mask &= ~disabled_features; |
| |
| args.sw_if_index = ntohl (mp->sw_if_index); |
| args.sock_filename = (char *) mp->sock_filename; |
| args.is_server = mp->is_server; |
| args.renumber = mp->renumber; |
| args.custom_dev_instance = ntohl (mp->custom_dev_instance); |
| args.enable_gso = mp->enable_gso; |
| args.enable_packed = mp->enable_packed; |
| rv = vhost_user_modify_if (vnm, vm, &args); |
| |
| REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_REPLY); |
| } |
| |
| static void |
| vl_api_create_vhost_user_if_v2_t_handler (vl_api_create_vhost_user_if_v2_t * |
| mp) |
| { |
| int rv = 0; |
| vl_api_create_vhost_user_if_v2_reply_t *rmp; |
| vnet_main_t *vnm = vnet_get_main (); |
| vlib_main_t *vm = vlib_get_main (); |
| u64 disabled_features = (u64) (0ULL); |
| vhost_user_create_if_args_t args = { 0 }; |
| |
| args.sw_if_index = (u32) ~ 0; |
| args.feature_mask = (u64) ~ (0ULL); |
| if (mp->disable_mrg_rxbuf) |
| disabled_features = VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF); |
| |
| if (mp->disable_indirect_desc) |
| disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC); |
| |
| /* |
| * GSO and PACKED are not supported by feature mask via binary API. We |
| * disable GSO and PACKED feature in the feature mask. They may be enabled |
| * explicitly via enable_gso and enable_packed argument |
| */ |
| disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS | |
| VIRTIO_FEATURE (VIRTIO_F_RING_PACKED); |
| |
| /* EVENT_IDX is disabled by default */ |
| disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX); |
| args.feature_mask &= ~disabled_features; |
| |
| if (mp->use_custom_mac) |
| mac_address_decode (mp->mac_address, (mac_address_t *) args.hwaddr); |
| |
| args.use_custom_mac = mp->use_custom_mac; |
| args.is_server = mp->is_server; |
| args.sock_filename = (char *) mp->sock_filename; |
| args.renumber = mp->renumber; |
| args.custom_dev_instance = ntohl (mp->custom_dev_instance); |
| args.enable_gso = mp->enable_gso; |
| args.enable_packed = mp->enable_packed; |
| args.enable_event_idx = mp->enable_event_idx; |
| rv = vhost_user_create_if (vnm, vm, &args); |
| |
| /* Remember an interface tag for the new interface */ |
| if (rv == 0) |
| { |
| /* If a tag was supplied... */ |
| if (mp->tag[0]) |
| { |
| /* Make sure it's a proper C-string */ |
| mp->tag[ARRAY_LEN (mp->tag) - 1] = 0; |
| u8 *tag = format (0, "%s%c", mp->tag, 0); |
| vnet_set_sw_interface_tag (vnm, tag, args.sw_if_index); |
| } |
| } |
| |
| /* *INDENT-OFF* */ |
| REPLY_MACRO2(VL_API_CREATE_VHOST_USER_IF_V2_REPLY, |
| ({ |
| rmp->sw_if_index = ntohl (args.sw_if_index); |
| })); |
| /* *INDENT-ON* */ |
| } |
| |
| static void |
| vl_api_modify_vhost_user_if_v2_t_handler (vl_api_modify_vhost_user_if_v2_t * |
| mp) |
| { |
| int rv = 0; |
| vl_api_modify_vhost_user_if_v2_reply_t *rmp; |
| u64 disabled_features = (u64) (0ULL); |
| vhost_user_create_if_args_t args = { 0 }; |
| vnet_main_t *vnm = vnet_get_main (); |
| vlib_main_t *vm = vlib_get_main (); |
| |
| args.feature_mask = (u64) ~ (0ULL); |
| /* |
| * GSO and PACKED are not supported by feature mask via binary API. We |
| * disable GSO and PACKED feature in the feature mask. They may be enabled |
| * explicitly via enable_gso and enable_packed argument |
| */ |
| disabled_features |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS | |
| VIRTIO_FEATURE (VIRTIO_F_RING_PACKED); |
| |
| /* EVENT_IDX is disabled by default */ |
| disabled_features |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX); |
| args.feature_mask &= ~disabled_features; |
| |
| args.sw_if_index = ntohl (mp->sw_if_index); |
| args.sock_filename = (char *) mp->sock_filename; |
| args.is_server = mp->is_server; |
| args.renumber = mp->renumber; |
| args.custom_dev_instance = ntohl (mp->custom_dev_instance); |
| args.enable_gso = mp->enable_gso; |
| args.enable_packed = mp->enable_packed; |
| args.enable_event_idx = mp->enable_event_idx; |
| rv = vhost_user_modify_if (vnm, vm, &args); |
| |
| REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_V2_REPLY); |
| } |
| |
| static void |
| vl_api_delete_vhost_user_if_t_handler (vl_api_delete_vhost_user_if_t * mp) |
| { |
| int rv = 0; |
| vl_api_delete_vhost_user_if_reply_t *rmp; |
| u32 sw_if_index = ntohl (mp->sw_if_index); |
| vl_api_registration_t *reg; |
| |
| vnet_main_t *vnm = vnet_get_main (); |
| vlib_main_t *vm = vlib_get_main (); |
| |
| rv = vhost_user_delete_if (vnm, vm, sw_if_index); |
| |
| REPLY_MACRO (VL_API_DELETE_VHOST_USER_IF_REPLY); |
| if (!rv) |
| { |
| reg = vl_api_client_index_to_registration (mp->client_index); |
| if (!reg) |
| return; |
| |
| vnet_clear_sw_interface_tag (vnm, sw_if_index); |
| } |
| } |
| |
| static void |
| vhost_user_features_encode (u64 features, u32 *first, u32 *last) |
| { |
| *first = clib_net_to_host_u32 (features); |
| *last = clib_net_to_host_u32 (features >> 32); |
| } |
| |
| static void |
| send_sw_interface_vhost_user_details (vpe_api_main_t * am, |
| vl_api_registration_t * reg, |
| vhost_user_intf_details_t * vui, |
| u32 context) |
| { |
| vl_api_sw_interface_vhost_user_details_t *mp; |
| |
| mp = vl_msg_api_alloc (sizeof (*mp)); |
| clib_memset (mp, 0, sizeof (*mp)); |
| mp->_vl_msg_id = |
| ntohs (REPLY_MSG_ID_BASE + VL_API_SW_INTERFACE_VHOST_USER_DETAILS); |
| mp->sw_if_index = ntohl (vui->sw_if_index); |
| mp->virtio_net_hdr_sz = ntohl (vui->virtio_net_hdr_sz); |
| vhost_user_features_encode (vui->features, (u32 *) &mp->features_first_32, |
| (u32 *) &mp->features_last_32); |
| mp->is_server = vui->is_server; |
| mp->num_regions = ntohl (vui->num_regions); |
| mp->sock_errno = ntohl (vui->sock_errno); |
| mp->context = context; |
| |
| strncpy ((char *) mp->sock_filename, |
| (char *) vui->sock_filename, ARRAY_LEN (mp->sock_filename) - 1); |
| strncpy ((char *) mp->interface_name, |
| (char *) vui->if_name, ARRAY_LEN (mp->interface_name) - 1); |
| |
| vl_api_send_msg (reg, (u8 *) mp); |
| } |
| |
| static void |
| vl_api_sw_interface_vhost_user_dump_t_handler |
| (vl_api_sw_interface_vhost_user_dump_t * mp) |
| { |
| int rv = 0; |
| vpe_api_main_t *am = &vpe_api_main; |
| vnet_main_t *vnm = vnet_get_main (); |
| vlib_main_t *vm = vlib_get_main (); |
| vhost_user_intf_details_t *ifaces = NULL; |
| vhost_user_intf_details_t *vuid = NULL; |
| vl_api_registration_t *reg; |
| u32 filter_sw_if_index; |
| |
| reg = vl_api_client_index_to_registration (mp->client_index); |
| if (!reg) |
| return; |
| |
| filter_sw_if_index = htonl (mp->sw_if_index); |
| if (filter_sw_if_index != ~0) |
| VALIDATE_SW_IF_INDEX (mp); |
| |
| rv = vhost_user_dump_ifs (vnm, vm, &ifaces); |
| if (rv) |
| return; |
| |
| vec_foreach (vuid, ifaces) |
| { |
| if ((filter_sw_if_index == ~0) || |
| (vuid->sw_if_index == filter_sw_if_index)) |
| send_sw_interface_vhost_user_details (am, reg, vuid, mp->context); |
| } |
| BAD_SW_IF_INDEX_LABEL; |
| vec_free (ifaces); |
| } |
| |
| #include <vhost/vhost_user.api.c> |
| static clib_error_t * |
| vhost_user_api_hookup (vlib_main_t * vm) |
| { |
| api_main_t *am = vlibapi_get_main (); |
| |
| /* |
| * Set up the (msg_name, crc, message-id) table |
| */ |
| REPLY_MSG_ID_BASE = setup_message_id_table (); |
| |
| /* Mark CREATE_VHOST_USER_IF as mp safe */ |
| vl_api_set_msg_thread_safe ( |
| am, REPLY_MSG_ID_BASE + VL_API_CREATE_VHOST_USER_IF, 1); |
| vl_api_set_msg_thread_safe ( |
| am, REPLY_MSG_ID_BASE + VL_API_CREATE_VHOST_USER_IF_V2, 1); |
| |
| return 0; |
| } |
| |
| VLIB_API_INIT_FUNCTION (vhost_user_api_hookup); |
| |
| /* |
| * fd.io coding-style-patch-verification: ON |
| * |
| * Local Variables: |
| * eval: (c-set-style "gnu") |
| * End: |
| */ |