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-rw-r--r--src/vnet/devices/virtio/vhost_user_api.c262
1 files changed, 262 insertions, 0 deletions
diff --git a/src/vnet/devices/virtio/vhost_user_api.c b/src/vnet/devices/virtio/vhost_user_api.c
new file mode 100644
index 00000000000..dd517c26f55
--- /dev/null
+++ b/src/vnet/devices/virtio/vhost_user_api.c
@@ -0,0 +1,262 @@
+/*
+ *------------------------------------------------------------------
+ * 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 <vnet/devices/virtio/vhost-user.h>
+
+#include <vnet/vnet_msg_enum.h>
+
+#define vl_typedefs /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <vnet/vnet_all_api_h.h>
+#undef vl_printfun
+
+#include <vlibapi/api_helper_macros.h>
+
+#define foreach_vpe_api_msg \
+_(CREATE_VHOST_USER_IF, create_vhost_user_if) \
+_(MODIFY_VHOST_USER_IF, modify_vhost_user_if) \
+_(DELETE_VHOST_USER_IF, delete_vhost_user_if) \
+_(SW_INTERFACE_VHOST_USER_DUMP, sw_interface_vhost_user_dump) \
+_(SW_INTERFACE_VHOST_USER_DETAILS, sw_interface_vhost_user_details)
+
+/*
+ * WARNING: replicated pending api refactor completion
+ */
+static void
+send_sw_interface_flags_deleted (vpe_api_main_t * am,
+ unix_shared_memory_queue_t * q,
+ u32 sw_if_index)
+{
+ vl_api_sw_interface_set_flags_t *mp;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_SET_FLAGS);
+ mp->sw_if_index = ntohl (sw_if_index);
+
+ mp->admin_up_down = 0;
+ mp->link_up_down = 0;
+ mp->deleted = 1;
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+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;
+ u32 sw_if_index = (u32) ~ 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ vlib_main_t *vm = vlib_get_main ();
+
+ rv = vhost_user_create_if (vnm, vm, (char *) mp->sock_filename,
+ mp->is_server, &sw_if_index, (u64) ~ 0,
+ mp->renumber, ntohl (mp->custom_dev_instance),
+ (mp->use_custom_mac) ? mp->mac_address : NULL);
+
+ /* 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, sw_if_index);
+ }
+ }
+
+ /* *INDENT-OFF* */
+ REPLY_MACRO2(VL_API_CREATE_VHOST_USER_IF_REPLY,
+ ({
+ rmp->sw_if_index = ntohl (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;
+ u32 sw_if_index = ntohl (mp->sw_if_index);
+
+ vnet_main_t *vnm = vnet_get_main ();
+ vlib_main_t *vm = vlib_get_main ();
+
+ rv = vhost_user_modify_if (vnm, vm, (char *) mp->sock_filename,
+ mp->is_server, sw_if_index, (u64) ~ 0,
+ mp->renumber, ntohl (mp->custom_dev_instance));
+
+ REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_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;
+ vpe_api_main_t *vam = &vpe_api_main;
+ u32 sw_if_index = ntohl (mp->sw_if_index);
+
+ 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)
+ {
+ unix_shared_memory_queue_t *q =
+ vl_api_client_index_to_input_queue (mp->client_index);
+ if (!q)
+ return;
+
+ vnet_clear_sw_interface_tag (vnm, sw_if_index);
+ send_sw_interface_flags_deleted (vam, q, sw_if_index);
+ }
+}
+
+static void
+ vl_api_sw_interface_vhost_user_details_t_handler
+ (vl_api_sw_interface_vhost_user_details_t * mp)
+{
+ clib_warning ("BUG");
+}
+
+static void
+send_sw_interface_vhost_user_details (vpe_api_main_t * am,
+ unix_shared_memory_queue_t * q,
+ vhost_user_intf_details_t * vui,
+ u32 context)
+{
+ vl_api_sw_interface_vhost_user_details_t *mp;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (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);
+ mp->features = clib_net_to_host_u64 (vui->features);
+ 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_msg_api_send_shmem (q, (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;
+ unix_shared_memory_queue_t *q;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ return;
+
+ rv = vhost_user_dump_ifs (vnm, vm, &ifaces);
+ if (rv)
+ return;
+
+ vec_foreach (vuid, ifaces)
+ {
+ send_sw_interface_vhost_user_details (am, q, vuid, mp->context);
+ }
+ vec_free (ifaces);
+}
+
+/*
+ * vhost-user_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has alread mapped shared memory and
+ * added the client registration handlers.
+ * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
+ */
+#define vl_msg_name_crc_list
+#include <vnet/vnet_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (api_main_t * am)
+{
+#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
+ foreach_vl_msg_name_crc_vhost_user;
+#undef _
+}
+
+static clib_error_t *
+vhost_user_api_hookup (vlib_main_t * vm)
+{
+ api_main_t *am = &api_main;
+
+#define _(N,n) \
+ vl_msg_api_set_handlers(VL_API_##N, #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vpe_api_msg;
+#undef _
+
+ /*
+ * Set up the (msg_name, crc, message-id) table
+ */
+ setup_message_id_table (am);
+
+ 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:
+ */