2 *------------------------------------------------------------------
3 * virtio_api.c - vnet virtio pci device driver API support
5 * Copyright (c) 2018 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <vnet/vnet.h>
21 #include <vlibmemory/api.h>
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vnet/ip/ip.h>
26 #include <vnet/devices/virtio/virtio.h>
27 #include <vnet/devices/virtio/pci.h>
29 #include <vnet/vnet_msg_enum.h>
31 #define vl_typedefs /* define message structures */
32 #include <vnet/vnet_all_api_h.h>
35 #define vl_endianfun /* define message structures */
36 #include <vnet/vnet_all_api_h.h>
39 /* instantiate all the print functions we know about */
40 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
42 #include <vnet/vnet_all_api_h.h>
45 #include <vlibapi/api_helper_macros.h>
47 #define foreach_virtio_pci_api_msg \
48 _(VIRTIO_PCI_CREATE, virtio_pci_create) \
49 _(VIRTIO_PCI_DELETE, virtio_pci_delete) \
50 _(SW_INTERFACE_VIRTIO_PCI_DUMP, sw_interface_virtio_pci_dump)
53 vl_api_virtio_pci_create_t_handler (vl_api_virtio_pci_create_t * mp)
55 vlib_main_t *vm = vlib_get_main ();
56 vl_api_virtio_pci_create_reply_t *rmp;
57 vl_api_registration_t *reg;
58 virtio_pci_create_if_args_t _a, *ap = &_a;
60 clib_memset (ap, 0, sizeof (*ap));
62 ap->addr = ntohl (mp->pci_addr);
63 if (!mp->use_random_mac)
65 clib_memcpy (ap->mac_addr, mp->mac_address, 6);
68 ap->sw_if_index = (u32) ~ 0;
69 ap->features = clib_net_to_host_u64 (mp->features);
71 virtio_pci_create_if (vm, ap);
73 reg = vl_api_client_index_to_registration (mp->client_index);
77 rmp = vl_msg_api_alloc (sizeof (*rmp));
78 rmp->_vl_msg_id = htons (VL_API_VIRTIO_PCI_CREATE_REPLY);
79 rmp->context = mp->context;
80 rmp->retval = htonl (ap->rv);
81 rmp->sw_if_index = htonl (ap->sw_if_index);
83 vl_api_send_msg (reg, (u8 *) rmp);
87 vl_api_virtio_pci_delete_t_handler (vl_api_virtio_pci_delete_t * mp)
89 vnet_main_t *vnm = vnet_get_main ();
90 vlib_main_t *vm = vlib_get_main ();
91 virtio_main_t *vim = &virtio_main;
93 vnet_hw_interface_t *hw;
95 vl_api_virtio_pci_delete_reply_t *rmp;
96 vl_api_registration_t *reg;
98 hw = vnet_get_sup_hw_interface (vnm, htonl (mp->sw_if_index));
99 if (hw == NULL || virtio_device_class.index != hw->dev_class_index)
101 rv = VNET_API_ERROR_INVALID_INTERFACE;
105 vif = pool_elt_at_index (vim->interfaces, hw->dev_instance);
107 rv = virtio_pci_delete_if (vm, vif);
110 reg = vl_api_client_index_to_registration (mp->client_index);
114 rmp = vl_msg_api_alloc (sizeof (*rmp));
115 rmp->_vl_msg_id = htons (VL_API_VIRTIO_PCI_DELETE_REPLY);
116 rmp->context = mp->context;
117 rmp->retval = htonl (rv);
119 vl_api_send_msg (reg, (u8 *) rmp);
123 virtio_pci_send_sw_interface_details (vpe_api_main_t * am,
124 vl_api_registration_t * reg,
125 virtio_if_t * vif, u32 context)
127 vl_api_sw_interface_virtio_pci_details_t *mp;
128 mp = vl_msg_api_alloc (sizeof (*mp));
130 clib_memset (mp, 0, sizeof (*mp));
132 mp->_vl_msg_id = htons (VL_API_SW_INTERFACE_VIRTIO_PCI_DETAILS);
133 mp->pci_addr = htonl (vif->pci_addr.as_u32);
134 mp->sw_if_index = htonl (vif->sw_if_index);
135 virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, 0);
136 mp->rx_ring_sz = htons (vring->size);
137 vring = vec_elt_at_index (vif->txq_vrings, 0);
138 mp->tx_ring_sz = htons (vring->size);
139 clib_memcpy (mp->mac_addr, vif->mac_addr, 6);
140 mp->features = clib_host_to_net_u64 (vif->features);
142 mp->context = context;
143 vl_api_send_msg (reg, (u8 *) mp);
147 vl_api_sw_interface_virtio_pci_dump_t_handler
148 (vl_api_sw_interface_virtio_pci_dump_t * mp)
150 vpe_api_main_t *am = &vpe_api_main;
151 vl_api_registration_t *reg;
152 virtio_main_t *vmx = &virtio_main;
155 reg = vl_api_client_index_to_registration (mp->client_index);
159 pool_foreach (vif, vmx->interfaces, (
161 if (vif->type == VIRTIO_IF_TYPE_PCI)
163 virtio_pci_send_sw_interface_details
164 (am, reg, vif, mp->context);}
169 #define vl_msg_name_crc_list
170 #include <vnet/vnet_all_api_h.h>
171 #undef vl_msg_name_crc_list
174 setup_message_id_table (api_main_t * am)
176 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
177 foreach_vl_msg_name_crc_virtio;
181 static clib_error_t *
182 virtio_pci_api_hookup (vlib_main_t * vm)
184 api_main_t *am = &api_main;
187 vl_msg_api_set_handlers(VL_API_##N, #n, \
188 vl_api_##n##_t_handler, \
190 vl_api_##n##_t_endian, \
191 vl_api_##n##_t_print, \
192 sizeof(vl_api_##n##_t), 1);
193 foreach_virtio_pci_api_msg;
197 * Set up the (msg_name, crc, message-id) table
199 setup_message_id_table (am);
204 VLIB_API_INIT_FUNCTION (virtio_pci_api_hookup);
207 * fd.io coding-style-patch-verification: ON
210 * eval: (c-set-style "gnu")