--- /dev/null
+/*
+ * memif VAT support
+ *
+ * Copyright (c) 2017 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 <inttypes.h>
+
+#include <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vppinfra/error.h>
+#include <vnet/ip/ip.h>
+#include <memif/memif.h>
+
+#define __plugin_msg_base memif_test_main.msg_id_base
+#include <vlibapi/vat_helper_macros.h>
+
+/* declare message IDs */
+#include <memif/memif_msg_enum.h>
+
+/* Get CRC codes of the messages defined outside of this plugin */
+#define vl_msg_name_crc_list
+#include <vpp/api/vpe_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+/* define message structures */
+#define vl_typedefs
+#include <vpp/api/vpe_all_api_h.h>
+#include <memif/memif_all_api_h.h>
+#undef vl_typedefs
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <memif/memif_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <memif/memif_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number. */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <memif/memif_all_api_h.h>
+#undef vl_api_version
+
+typedef struct
+{
+ /* API message ID base */
+ u16 msg_id_base;
+ u32 ping_id;
+ vat_main_t *vat_main;
+} memif_test_main_t;
+
+memif_test_main_t memif_test_main;
+
+/* standard reply handlers */
+#define foreach_standard_reply_retval_handler \
+_(memif_delete_reply)
+
+#define _(n) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = memif_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ }
+foreach_standard_reply_retval_handler;
+#undef _
+
+/*
+ * Table of message reply handlers, must include boilerplate handlers
+ * we just generated
+ */
+#define foreach_vpe_api_reply_msg \
+_(MEMIF_CREATE_REPLY, memif_create_reply) \
+_(MEMIF_DELETE_REPLY, memif_delete_reply) \
+_(MEMIF_DETAILS, memif_details)
+
+static uword
+unformat_memif_queues (unformat_input_t * input, va_list * args)
+{
+ u32 *rx_queues = va_arg (*args, u32 *);
+ u32 *tx_queues = va_arg (*args, u32 *);
+
+ if (unformat (input, "rx-queues %u", rx_queues))
+ ;
+ if (unformat (input, "tx-queues %u", tx_queues))
+ ;
+
+ return 1;
+}
+
+/* memif-create API */
+static int
+api_memif_create (vat_main_t * vam)
+{
+ unformat_input_t *i = vam->input;
+ vl_api_memif_create_t *mp;
+ u64 key = 0;
+ u8 *socket_filename = 0;
+ u8 role = 1;
+ u32 ring_size = 0;
+ u32 buffer_size = 0;
+ u8 hw_addr[6] = { 0 };
+ u32 rx_queues = MEMIF_DEFAULT_RX_QUEUES;
+ u32 tx_queues = MEMIF_DEFAULT_TX_QUEUES;
+ int ret;
+
+
+ while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (i, "key 0x%" PRIx64, &key))
+ ;
+ else if (unformat (i, "socket %s", &socket_filename))
+ ;
+ else if (unformat (i, "ring_size %u", &ring_size))
+ ;
+ else if (unformat (i, "buffer_size %u", &buffer_size))
+ ;
+ else if (unformat (i, "master"))
+ role = 0;
+ else if (unformat (i, "slave %U",
+ unformat_memif_queues, &rx_queues, &tx_queues))
+ role = 1;
+ else if (unformat (i, "hw_addr %U", unformat_ethernet_address, hw_addr))
+ ;
+ else
+ {
+ clib_warning ("unknown input '%U'", format_unformat_error, i);
+ return -99;
+ }
+ }
+
+ if (!is_pow2 (ring_size))
+ {
+ errmsg ("ring size must be power of 2\n");
+ return -99;
+ }
+
+ if (rx_queues > 255 || rx_queues < 1)
+ {
+ errmsg ("rx queue must be between 1 - 255\n");
+ return -99;
+ }
+
+ if (tx_queues > 255 || tx_queues < 1)
+ {
+ errmsg ("tx queue must be between 1 - 255\n");
+ return -99;
+ }
+
+ M (MEMIF_CREATE, mp);
+
+ mp->key = clib_host_to_net_u64 (key);
+ mp->role = role;
+ mp->ring_size = clib_host_to_net_u32 (ring_size);
+ mp->buffer_size = clib_host_to_net_u16 (buffer_size & 0xffff);
+ if (socket_filename != 0)
+ {
+ strncpy ((char *) mp->socket_filename, (char *) socket_filename, 127);
+ vec_free (socket_filename);
+ }
+ memcpy (mp->hw_addr, hw_addr, 6);
+ mp->rx_queues = rx_queues;
+ mp->tx_queues = tx_queues;
+
+ S (mp);
+ W (ret);
+ return ret;
+}
+
+/* memif-create reply handler */
+static void vl_api_memif_create_reply_t_handler
+ (vl_api_memif_create_reply_t * mp)
+{
+ vat_main_t *vam = memif_test_main.vat_main;
+ i32 retval = ntohl (mp->retval);
+
+ if (retval == 0)
+ {
+ fformat (vam->ofp, "created memif with sw_if_index %d\n",
+ ntohl (mp->sw_if_index));
+ }
+
+ vam->retval = retval;
+ vam->result_ready = 1;
+}
+
+/* memif-delete API */
+static int
+api_memif_delete (vat_main_t * vam)
+{
+ unformat_input_t *i = vam->input;
+ vl_api_memif_delete_t *mp;
+ u32 sw_if_index = 0;
+ u8 index_defined = 0;
+ int ret;
+
+ while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (i, "sw_if_index %u", &sw_if_index))
+ index_defined = 1;
+ else
+ {
+ clib_warning ("unknown input '%U'", format_unformat_error, i);
+ return -99;
+ }
+ }
+
+ if (!index_defined)
+ {
+ errmsg ("missing sw_if_index\n");
+ return -99;
+ }
+
+ M (MEMIF_DELETE, mp);
+
+ mp->sw_if_index = clib_host_to_net_u32 (sw_if_index);
+
+ S (mp);
+ W (ret);
+ return ret;
+}
+
+/* memif-dump API */
+static int
+api_memif_dump (vat_main_t * vam)
+{
+ memif_test_main_t *mm = &memif_test_main;
+ vl_api_memif_dump_t *mp;
+ vl_api_control_ping_t *mp_ping;
+ int ret;
+
+ if (vam->json_output)
+ {
+ clib_warning ("JSON output not supported for memif_dump");
+ return -99;
+ }
+
+ M (MEMIF_DUMP, mp);
+ S (mp);
+
+ /* Use a control ping for synchronization */
+ mp_ping = vl_msg_api_alloc_as_if_client (sizeof (*mp_ping));
+ mp_ping->_vl_msg_id = htons (mm->ping_id);
+ mp_ping->client_index = vam->my_client_index;
+
+ fformat (vam->ofp, "Sending ping id=%d\n", mm->ping_id);
+
+ vam->result_ready = 0;
+ S (mp_ping);
+
+ W (ret);
+ return ret;
+}
+
+/* memif-details message handler */
+static void vl_api_memif_details_t_handler (vl_api_memif_details_t * mp)
+{
+ vat_main_t *vam = memif_test_main.vat_main;
+
+ fformat (vam->ofp, "%s: sw_if_index %u mac %U\n"
+ " key 0x%" PRIx64 " socket %s role %s\n"
+ " ring_size %u buffer_size %u\n"
+ " state %s link %s\n",
+ mp->if_name, ntohl (mp->sw_if_index), format_ethernet_address,
+ mp->hw_addr, clib_net_to_host_u64 (mp->key), mp->socket_filename,
+ mp->role ? "slave" : "master",
+ ntohl (mp->ring_size), ntohs (mp->buffer_size),
+ mp->admin_up_down ? "up" : "down",
+ mp->link_up_down ? "up" : "down");
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \
+_(memif_create, "[key <key>] [socket <path>] [ring_size <size>] " \
+ "[buffer_size <size>] [hw_addr <mac_address>] " \
+ "<master|slave>") \
+_(memif_delete, "<sw_if_index>") \
+_(memif_dump, "")
+
+static void
+memif_vat_api_hookup (vat_main_t * vam)
+{
+ memif_test_main_t *mm __attribute__ ((unused)) = &memif_test_main;
+ /* Hook up handlers for replies from the data plane plug-in */
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + mm->msg_id_base), \
+ #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_reply_msg;
+#undef _
+
+ /* API messages we can send */
+#define _(n,h) \
+ hash_set_mem (vam->function_by_name, #n, api_##n);
+ foreach_vpe_api_msg;
+#undef _
+
+ /* Help strings */
+#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
+ foreach_vpe_api_msg;
+#undef _
+}
+
+clib_error_t *
+vat_plugin_register (vat_main_t * vam)
+{
+ memif_test_main_t *mm = &memif_test_main;
+ u8 *name;
+
+ mm->vat_main = vam;
+
+ /* Ask the vpp engine for the first assigned message-id */
+ name = format (0, "memif_%08x%c", api_version, 0);
+ mm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+ /* Get the control ping ID */
+#define _(id,n,crc) \
+ const char *id ## _CRC __attribute__ ((unused)) = #n "_" #crc;
+ foreach_vl_msg_name_crc_vpe;
+#undef _
+ mm->ping_id = vl_api_get_msg_index ((u8 *) (VL_API_CONTROL_PING_CRC));
+
+ if (mm->msg_id_base != (u16) ~0)
+ memif_vat_api_hookup (vam);
+
+ vec_free (name);
+
+ return 0;
+}
Code Review / vpp.git / commitdiff