FD.io VPP  v18.01.2-1-g9b554f3
Vector Packet Processing
main.c
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1 /*
2  *------------------------------------------------------------------
3  * Copyright (c) 2017 Cisco and/or its affiliates.
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at:
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *------------------------------------------------------------------
16  */
17 
18 #include <stdlib.h>
19 #include <stdint.h>
20 #include <net/if.h>
21 #include <sys/types.h>
22 #include <fcntl.h>
23 #include <sys/ioctl.h>
24 #include <sys/socket.h>
25 #include <sys/un.h>
26 #include <sys/uio.h>
27 #include <sys/mman.h>
28 #include <sys/prctl.h>
29 #include <inttypes.h>
30 #include <string.h>
31 #include <stdio.h>
32 #include <netdb.h>
33 #include <linux/ip.h>
34 #include <linux/icmp.h>
35 #include <arpa/inet.h>
36 #include <stdlib.h>
37 #include <netinet/if_ether.h>
38 #include <net/if_arp.h>
39 #include <asm/byteorder.h>
40 #include <byteswap.h>
41 #include <string.h>
42 #include <sys/epoll.h>
43 #include <errno.h>
44 #include <unistd.h>
45 #include <signal.h>
46 #include <pthread.h>
47 
48 #include <time.h>
49 
50 #include <libmemif.h>
51 #include <icmp_proto.h>
52 
53 #define APP_NAME "ICMP_Responder"
54 #define IF_NAME "memif_connection"
55 
56 
57 #ifdef ICMP_DBG
58 #define DBG(...) do { \
59  printf (APP_NAME":%s:%d: ", __func__, __LINE__); \
60  printf (__VA_ARGS__); \
61  printf ("\n"); \
62  } while (0)
63 #define LOG(...) do { \
64  if (enable_log) { \
65  dprintf (out_fd, __VA_ARGS__); \
66  dprintf (out_fd, "\n"); \
67  } \
68  } while (0)
69 #define LOG_FILE "/tmp/memif_time_test.txt"
70 #else
71 #define DBG(...)
72 #define LOG(...)
73 #endif
74 
75 #define INFO(...) do { \
76  printf ("INFO: "__VA_ARGS__); \
77  printf ("\n"); \
78  } while (0)
79 
80 
81 /* maximum tx/rx memif buffers */
82 #define MAX_MEMIF_BUFS 256
83 #define MAX_CONNS 50
84 
85 int epfd;
86 int out_fd;
87 uint8_t enable_log;
88 
89 typedef struct
90 {
91  uint16_t index;
92  /* memif conenction handle */
94  /* tx buffers */
95  memif_buffer_t *tx_bufs;
96  /* allocated tx buffers counter */
97  /* number of tx buffers pointing to shared memory */
98  uint16_t tx_buf_num;
99  /* rx buffers */
100  memif_buffer_t *rx_bufs;
101  /* allcoated rx buffers counter */
102  /* number of rx buffers pointing to shared memory */
103  uint16_t rx_buf_num;
104  /* interface ip address */
105  uint8_t ip_addr[4];
106  uint16_t seq;
107  uint64_t tx_counter, rx_counter, tx_err_counter;
108  uint64_t t_sec, t_nsec;
110 
111 typedef struct
112 {
113  uint16_t index;
114  uint64_t packet_num;
115  uint8_t ip_daddr[4];
116  uint8_t hw_daddr[6];
118 
119 memif_connection_t memif_connection[MAX_CONNS];
120 icmpr_thread_data_t icmpr_thread_data[MAX_CONNS];
121 pthread_t thread[MAX_CONNS];
123 
124 /* print details for all memif connections */
125 static void
127 {
128  memif_details_t md;
129  ssize_t buflen;
130  char *buf;
131  int err, i, e;
132  buflen = 2048;
133  buf = malloc (buflen);
134  printf ("MEMIF DETAILS\n");
135  printf ("==============================\n");
136  for (i = 0; i < MAX_CONNS; i++)
137  {
138  memif_connection_t *c = &memif_connection[i];
139 
140  memset (&md, 0, sizeof (md));
141  memset (buf, 0, buflen);
142 
143  err = memif_get_details (c->conn, &md, buf, buflen);
144  if (err != MEMIF_ERR_SUCCESS)
145  {
146  if (err != MEMIF_ERR_NOCONN)
147  INFO ("%s", memif_strerror (err));
148  continue;
149  }
150 
151  printf ("interface index: %d\n", i);
152 
153  printf ("\tinterface ip: %u.%u.%u.%u\n",
154  c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
155  printf ("\tinterface name: %s\n", (char *) md.if_name);
156  printf ("\tapp name: %s\n", (char *) md.inst_name);
157  printf ("\tremote interface name: %s\n", (char *) md.remote_if_name);
158  printf ("\tremote app name: %s\n", (char *) md.remote_inst_name);
159  printf ("\tid: %u\n", md.id);
160  printf ("\tsecret: %s\n", (char *) md.secret);
161  printf ("\trole: ");
162  if (md.role)
163  printf ("slave\n");
164  else
165  printf ("master\n");
166  printf ("\tmode: ");
167  switch (md.mode)
168  {
169  case 0:
170  printf ("ethernet\n");
171  break;
172  case 1:
173  printf ("ip\n");
174  break;
175  case 2:
176  printf ("punt/inject\n");
177  break;
178  default:
179  printf ("unknown\n");
180  break;
181  }
182  printf ("\tsocket filename: %s\n", (char *) md.socket_filename);
183  printf ("\trx queues:\n");
184  for (e = 0; e < md.rx_queues_num; e++)
185  {
186  printf ("\t\tqueue id: %u\n", md.rx_queues[e].qid);
187  printf ("\t\tring size: %u\n", md.rx_queues[e].ring_size);
188  printf ("\t\tring rx mode: %s\n",
189  md.rx_queues[e].flags ? "polling" : "interrupt");
190  printf ("\t\tring head: %u\n", md.rx_queues[e].head);
191  printf ("\t\tring tail: %u\n", md.rx_queues[e].tail);
192  printf ("\t\tbuffer size: %u\n", md.rx_queues[e].buffer_size);
193  }
194  printf ("\ttx queues:\n");
195  for (e = 0; e < md.tx_queues_num; e++)
196  {
197  printf ("\t\tqueue id: %u\n", md.tx_queues[e].qid);
198  printf ("\t\tring size: %u\n", md.tx_queues[e].ring_size);
199  printf ("\t\tring rx mode: %s\n",
200  md.tx_queues[e].flags ? "polling" : "interrupt");
201  printf ("\t\tring head: %u\n", md.tx_queues[e].head);
202  printf ("\t\tring tail: %u\n", md.tx_queues[e].tail);
203  printf ("\t\tbuffer size: %u\n", md.tx_queues[e].buffer_size);
204  }
205  printf ("\tlink: ");
206  if (md.link_up_down)
207  printf ("up\n");
208  else
209  printf ("down\n");
210  }
211  free (buf);
212 }
213 
214 int
215 add_epoll_fd (int fd, uint32_t events)
216 {
217  if (fd < 0)
218  {
219  DBG ("invalid fd %d", fd);
220  return -1;
221  }
222  struct epoll_event evt;
223  memset (&evt, 0, sizeof (evt));
224  evt.events = events;
225  evt.data.fd = fd;
226  if (epoll_ctl (epfd, EPOLL_CTL_ADD, fd, &evt) < 0)
227  {
228  DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
229  return -1;
230  }
231  DBG ("fd %d added to epoll", fd);
232  return 0;
233 }
234 
235 int
236 mod_epoll_fd (int fd, uint32_t events)
237 {
238  if (fd < 0)
239  {
240  DBG ("invalid fd %d", fd);
241  return -1;
242  }
243  struct epoll_event evt;
244  memset (&evt, 0, sizeof (evt));
245  evt.events = events;
246  evt.data.fd = fd;
247  if (epoll_ctl (epfd, EPOLL_CTL_MOD, fd, &evt) < 0)
248  {
249  DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
250  return -1;
251  }
252  DBG ("fd %d moddified on epoll", fd);
253  return 0;
254 }
255 
256 int
257 del_epoll_fd (int fd)
258 {
259  if (fd < 0)
260  {
261  DBG ("invalid fd %d", fd);
262  return -1;
263  }
264  struct epoll_event evt;
265  memset (&evt, 0, sizeof (evt));
266  if (epoll_ctl (epfd, EPOLL_CTL_DEL, fd, &evt) < 0)
267  {
268  DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
269  return -1;
270  }
271  DBG ("fd %d removed from epoll", fd);
272  return 0;
273 }
274 
275 /* informs user about connected status. private_ctx is used by user to identify connection
276  (multiple connections WIP) */
277 int
278 on_connect (memif_conn_handle_t conn, void *private_ctx)
279 {
280  INFO ("memif connected!");
281  enable_log = 1;
282  return 0;
283 }
284 
285 /* informs user about disconnected status. private_ctx is used by user to identify connection
286  (multiple connections WIP) */
287 int
288 on_disconnect (memif_conn_handle_t conn, void *private_ctx)
289 {
290  INFO ("memif disconnected!");
291  return 0;
292 }
293 
294 /* user needs to watch new fd or stop watching fd that is about to be closed.
295  control fd will be modified during connection establishment to minimize CPU usage */
296 int
297 control_fd_update (int fd, uint8_t events)
298 {
299  /* convert memif event definitions to epoll events */
300  if (events & MEMIF_FD_EVENT_DEL)
301  return del_epoll_fd (fd);
302 
303  uint32_t evt = 0;
304  if (events & MEMIF_FD_EVENT_READ)
305  evt |= EPOLLIN;
306  if (events & MEMIF_FD_EVENT_WRITE)
307  evt |= EPOLLOUT;
308 
309  if (events & MEMIF_FD_EVENT_MOD)
310  return mod_epoll_fd (fd, evt);
311 
312  return add_epoll_fd (fd, evt);
313 }
314 
315 int
316 icmpr_buffer_alloc (long index, long n, uint16_t * r, uint16_t i,
317  uint16_t qid)
318 {
319  memif_connection_t *c = &memif_connection[index];
320  int err;
321  /* set data pointer to shared memory and set buffer_len to shared mmeory buffer len */
322  err = memif_buffer_alloc (c->conn, qid, c->tx_bufs + i, n, r, 0);
323  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
324  {
325  INFO ("memif_buffer_alloc: %s", memif_strerror (err));
326  return -1;
327  }
328  c->tx_buf_num += *r;
329  DBG ("allocated %d/%ld buffers, %u free buffers", *r, n,
331  return 0;
332 }
333 
334 int
335 icmpr_tx_burst (long index, uint16_t qid)
336 {
337  memif_connection_t *c = &memif_connection[index];
338  int err;
339  uint16_t r;
340  /* inform peer memif interface about data in shared memory buffers */
341  /* mark memif buffers as free */
342  err = memif_tx_burst (c->conn, qid, c->tx_bufs, c->tx_buf_num, &r);
343  if (err != MEMIF_ERR_SUCCESS)
344  INFO ("memif_tx_burst: %s", memif_strerror (err));
345  c->tx_buf_num -= r;
346  c->tx_counter += r;
347  return 0;
348 }
349 
350 /* called when event is polled on interrupt file descriptor.
351  there are packets in shared memory ready to be received */
352 int
353 on_interrupt (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
354 {
355  long index = *((long *) private_ctx);
356  memif_connection_t *c = &memif_connection[index];
357  if (c->index != index)
358  {
359  INFO ("invalid context: %ld/%u", index, c->index);
360  return 0;
361  }
362 
363  int err = MEMIF_ERR_SUCCESS, ret_val;
364  uint16_t rx, tx;
365  uint16_t fb;
366  int i; /* rx buffer iterator */
367  int j; /* tx bufferiterator */
368 
369  /* loop while there are packets in shm */
370  do
371  {
372  /* receive data from shared memory buffers */
373  err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
374  ret_val = err;
375  c->rx_counter += rx;
376  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
377  {
378  INFO ("memif_rx_burst: %s", memif_strerror (err));
379  goto error;
380  }
381 
382  i = 0;
383 
384  /* try to alloc required number of buffers buffers */
385  err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 0);
386  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
387  {
388  INFO ("memif_buffer_alloc: %s", memif_strerror (err));
389  goto error;
390  }
391  j = 0;
392  c->tx_err_counter = rx - tx;
393 
394  /* process bufers */
395  while (tx)
396  {
397  while (tx > 2)
398  {
399  resolve_packet ((void *) (c->rx_bufs + i)->data,
400  (c->rx_bufs + i)->data_len,
401  (void *) (c->tx_bufs + j)->data,
402  &(c->tx_bufs + j)->data_len, c->ip_addr);
403  resolve_packet ((void *) (c->rx_bufs + i + 1)->data,
404  (c->rx_bufs + i + 1)->data_len,
405  (void *) (c->tx_bufs + j + 1)->data,
406  &(c->tx_bufs + j + 1)->data_len, c->ip_addr);
407 
408  i += 2;
409  j += 2;
410  tx -= 2;
411  }
412  resolve_packet ((void *) (c->rx_bufs + i)->data,
413  (c->rx_bufs + i)->data_len,
414  (void *) (c->tx_bufs + j)->data,
415  &(c->tx_bufs + j)->data_len, c->ip_addr);
416  i++;
417  j++;
418  tx--;
419  }
420  /* mark memif buffers and shared memory buffers as free */
421  /* free processed buffers */
422  err = memif_buffer_free (c->conn, qid, c->rx_bufs, rx, &fb);
423  if (err != MEMIF_ERR_SUCCESS)
424  INFO ("memif_buffer_free: %s", memif_strerror (err));
425  rx -= fb;
426 
427  DBG ("freed %d buffers. %u/%u alloc/free buffers",
428  fb, rx, MAX_MEMIF_BUFS - rx);
429 
430  /* transmit allocated buffers */
431  err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
432  if (err != MEMIF_ERR_SUCCESS)
433  {
434  INFO ("memif_tx_burst: %s", memif_strerror (err));
435  goto error;
436  }
437  c->tx_counter += tx;
438 
439  }
440  while (ret_val == MEMIF_ERR_NOBUF);
441 
442  return 0;
443 
444 error:
445  err = memif_buffer_free (c->conn, qid, c->rx_bufs, rx, &fb);
446  if (err != MEMIF_ERR_SUCCESS)
447  INFO ("memif_buffer_free: %s", memif_strerror (err));
448  c->rx_buf_num -= fb;
449  DBG ("freed %d buffers. %u/%u alloc/free buffers",
450  fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
451  return 0;
452 }
453 
454 /* called when event is polled on interrupt file descriptor.
455  there are packets in shared memory ready to be received */
456 /* dev test modification: loop until TX == RX (don't drop buffers) */
457 int
458 on_interrupt0 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
459 {
460  long index = *((long *) private_ctx);
461  memif_connection_t *c = &memif_connection[index];
462  if (c->index != index)
463  {
464  INFO ("invalid context: %ld/%u", index, c->index);
465  return 0;
466  }
467 
468  int err = MEMIF_ERR_SUCCESS, ret_val;
469  uint16_t rx, tx;
470  uint16_t fb;
471  int i; /* rx buffer iterator */
472  int j; /* tx bufferiterator */
473  int prev_i; /* first allocated rx buffer */
474 
475  /* loop while there are packets in shm */
476  do
477  {
478  /* receive data from shared memory buffers */
479  err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
480  ret_val = err;
481  c->rx_counter += rx;
482  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
483  {
484  INFO ("memif_rx_burst: %s", memif_strerror (err));
485  goto error;
486  }
487 
488  prev_i = i = 0;
489 
490  /* loop while there are RX buffers to be processed */
491  while (rx)
492  {
493 
494  /* try to alloc required number of buffers buffers */
495  err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 0);
496  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
497  {
498  INFO ("memif_buffer_alloc: %s", memif_strerror (err));
499  goto error;
500  }
501  j = 0;
502 
503  /* process bufers */
504  while (tx)
505  {
506  while (tx > 2)
507  {
508  resolve_packet ((void *) (c->rx_bufs + i)->data,
509  (c->rx_bufs + i)->data_len,
510  (void *) (c->tx_bufs + j)->data,
511  &(c->tx_bufs + j)->data_len, c->ip_addr);
512  resolve_packet ((void *) (c->rx_bufs + i + 1)->data,
513  (c->rx_bufs + i + 1)->data_len,
514  (void *) (c->tx_bufs + j + 1)->data,
515  &(c->tx_bufs + j + 1)->data_len,
516  c->ip_addr);
517 
518  i += 2;
519  j += 2;
520  tx -= 2;
521  }
522  resolve_packet ((void *) (c->rx_bufs + i)->data,
523  (c->rx_bufs + i)->data_len,
524  (void *) (c->tx_bufs + j)->data,
525  &(c->tx_bufs + j)->data_len, c->ip_addr);
526  i++;
527  j++;
528  tx--;
529  }
530  /* mark memif buffers and shared memory buffers as free */
531  /* free processed buffers */
532  err = memif_buffer_free (c->conn, qid, c->rx_bufs + prev_i, j, &fb);
533  if (err != MEMIF_ERR_SUCCESS)
534  INFO ("memif_buffer_free: %s", memif_strerror (err));
535  rx -= fb;
536  prev_i = i;
537 
538  DBG ("freed %d buffers. %u/%u alloc/free buffers",
539  fb, rx, MAX_MEMIF_BUFS - rx);
540 
541  /* transmit allocated buffers */
542  err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
543  if (err != MEMIF_ERR_SUCCESS)
544  {
545  INFO ("memif_tx_burst: %s", memif_strerror (err));
546  goto error;
547  }
548  c->tx_counter += tx;
549 
550  }
551 
552  }
553  while (ret_val == MEMIF_ERR_NOBUF);
554 
555  return 0;
556 
557 error:
558  err = memif_buffer_free (c->conn, qid, c->rx_bufs, rx, &fb);
559  if (err != MEMIF_ERR_SUCCESS)
560  INFO ("memif_buffer_free: %s", memif_strerror (err));
561  c->rx_buf_num -= fb;
562  DBG ("freed %d buffers. %u/%u alloc/free buffers",
563  fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
564  return 0;
565 }
566 
567 /* called when event is polled on interrupt file descriptor.
568  there are packets in shared memory ready to be received */
569 /* dev test modification: handle only ARP requests */
570 int
571 on_interrupt1 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
572 {
573  long index = *((long *) private_ctx);
574  memif_connection_t *c = &memif_connection[index];
575  if (c->index != index)
576  {
577  INFO ("invalid context: %ld/%u", index, c->index);
578  return 0;
579  }
580 
581  int err = MEMIF_ERR_SUCCESS, ret_val;
582  int i;
583  uint16_t rx, tx;
584  uint16_t fb;
585  uint16_t pck_seq;
586 
587  do
588  {
589  /* receive data from shared memory buffers */
590  err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
591  ret_val = err;
592  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
593  {
594  INFO ("memif_rx_burst: %s", memif_strerror (err));
595  goto error;
596  }
597  c->rx_buf_num += rx;
598  c->rx_counter += rx;
599 
600  for (i = 0; i < rx; i++)
601  {
602  if (((struct ether_header *) (c->rx_bufs + i)->data)->ether_type ==
603  0x0608)
604  {
605  if (icmpr_buffer_alloc (c->index, 1, &tx, i, qid) < 0)
606  break;
607  resolve_packet ((void *) (c->rx_bufs + i)->data,
608  (c->rx_bufs + i)->data_len,
609  (void *) (c->tx_bufs + i)->data,
610  &(c->tx_bufs + i)->data_len, c->ip_addr);
611  icmpr_tx_burst (c->index, qid);
612  }
613  }
614 
615  err = memif_buffer_free (c->conn, qid, c->rx_bufs, rx, &fb);
616  if (err != MEMIF_ERR_SUCCESS)
617  INFO ("memif_buffer_free: %s", memif_strerror (err));
618  c->rx_buf_num -= fb;
619 
620 
621  }
622  while (ret_val == MEMIF_ERR_NOBUF);
623 
624  return 0;
625 
626 error:
627  err = memif_buffer_free (c->conn, qid, c->rx_bufs, rx, &fb);
628  if (err != MEMIF_ERR_SUCCESS)
629  INFO ("memif_buffer_free: %s", memif_strerror (err));
630  c->rx_buf_num -= fb;
631  DBG ("freed %d buffers. %u/%u alloc/free buffers",
632  fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
633  return 0;
634 }
635 
636 int
637 icmpr_memif_create (long index, long mode, char *s)
638 {
639  if (index >= MAX_CONNS)
640  {
641  INFO ("connection array overflow");
642  return 0;
643  }
644  if (index < 0)
645  {
646  INFO ("don't even try...");
647  return 0;
648  }
649  memif_connection_t *c = &memif_connection[index];
650 
651  /* setting memif connection arguments */
652  memif_conn_args_t args;
653  int fd = -1;
654  memset (&args, 0, sizeof (args));
655  args.is_master = mode;
656  args.log2_ring_size = 11;
657  args.buffer_size = 2048;
658  args.num_s2m_rings = 2;
659  args.num_m2s_rings = 2;
660  strncpy ((char *) args.interface_name, IF_NAME, strlen (IF_NAME));
661  strncpy ((char *) args.instance_name, APP_NAME, strlen (APP_NAME));
662  args.mode = 0;
663  /* socket filename is not specified, because this app is supposed to
664  connect to VPP over memif. so default socket filename will be used */
665  /* default socketfile = /run/vpp/memif.sock */
666 
667  args.interface_id = index;
668  /* last argument for memif_create (void * private_ctx) is used by user
669  to identify connection. this context is returned with callbacks */
670  int err;
671  /* default interrupt */
672  if (s == NULL)
673  {
674  err = memif_create (&c->conn,
676  &ctx[index]);
677  if (err != MEMIF_ERR_SUCCESS)
678  {
679  INFO ("memif_create: %s", memif_strerror (err));
680  return 0;
681  }
682  }
683  else
684  {
685  if (strncmp (s, "0", 1) == 0)
686  {
687  err = memif_create (&c->conn,
689  &ctx[index]);
690  if (err != MEMIF_ERR_SUCCESS)
691  {
692  INFO ("memif_create: %s", memif_strerror (err));
693  return 0;
694  }
695  }
696  else if (strncmp (s, "1", 1) == 0)
697  {
698  err = memif_create (&c->conn,
700  &ctx[index]);
701  if (err != MEMIF_ERR_SUCCESS)
702  {
703  INFO ("memif_create: %s", memif_strerror (err));
704  return 0;
705  }
706  }
707  else
708  {
709  INFO ("Unknown interrupt descriptor");
710  goto done;
711  }
712  }
713 
714  c->index = index;
715  /* alloc memif buffers */
716  c->rx_buf_num = 0;
717  c->rx_bufs =
718  (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
719  c->tx_buf_num = 0;
720  c->tx_bufs =
721  (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
722 
723  c->ip_addr[0] = 192;
724  c->ip_addr[1] = 168;
725  c->ip_addr[2] = c->index + 1;
726  c->ip_addr[3] = 2;
727 
728  c->seq = c->tx_err_counter = c->tx_counter = c->rx_counter = 0;
729 
730 done:
731  return 0;
732 }
733 
734 int
735 icmpr_memif_delete (long index)
736 {
737  if (index >= MAX_CONNS)
738  {
739  INFO ("connection array overflow");
740  return 0;
741  }
742  if (index < 0)
743  {
744  INFO ("don't even try...");
745  return 0;
746  }
747  memif_connection_t *c = &memif_connection[index];
748 
749  if (c->rx_bufs)
750  free (c->rx_bufs);
751  c->rx_bufs = NULL;
752  c->rx_buf_num = 0;
753  if (c->tx_bufs)
754  free (c->tx_bufs);
755  c->tx_bufs = NULL;
756  c->tx_buf_num = 0;
757 
758  int err;
759  /* disconenct then delete memif connection */
760  err = memif_delete (&c->conn);
761  if (err != MEMIF_ERR_SUCCESS)
762  INFO ("memif_delete: %s", memif_strerror (err));
763  if (c->conn != NULL)
764  INFO ("memif delete fail");
765  return 0;
766 }
767 
768 void
770 {
771  printf ("LIBMEMIF EXAMPLE APP: %s", APP_NAME);
772 #ifdef ICMP_DBG
773  printf (" (debug)");
774 #endif
775  printf ("\n");
776  printf ("==============================\n");
777  printf ("libmemif version: %s", LIBMEMIF_VERSION);
778 #ifdef MEMIF_DBG
779  printf (" (debug)");
780 #endif
781  printf ("\n");
782  printf ("memif version: %d\n", MEMIF_VERSION);
783  printf ("commands:\n");
784  printf ("\thelp - prints this help\n");
785  printf ("\texit - exit app\n");
786  printf
787  ("\tconn <index> <mode> [<interrupt-desc>] - create memif. index is also used as interface id, mode 0 = slave 1 = master, interrupt-desc none = default 0 = if ring is full wait 1 = handle only ARP requests\n");
788  printf ("\tdel <index> - delete memif\n");
789  printf ("\tshow - show connection details\n");
790  printf ("\tip-set <index> <ip-addr> - set interface ip address\n");
791  printf
792  ("\trx-mode <index> <qid> <polling|interrupt> - set queue rx mode\n");
793  printf ("\tsh-count - print counters\n");
794  printf ("\tcl-count - clear counters\n");
795  printf ("\tsend <index> <tx> <ip> <mac> - send icmp\n");
796 }
797 
798 int
800 {
801  /* application cleanup */
802  int err;
803  long i;
804  if (out_fd > 0)
805  close (out_fd);
806  out_fd = -1;
807  for (i = 0; i < MAX_CONNS; i++)
808  {
809  memif_connection_t *c = &memif_connection[i];
810  if (c->conn)
811  icmpr_memif_delete (i);
812  }
813 
814  err = memif_cleanup ();
815  if (err != MEMIF_ERR_SUCCESS)
816  INFO ("memif_delete: %s", memif_strerror (err));
817 
818  return 0;
819 }
820 
821 int
822 icmpr_set_ip (long index, char *ip)
823 {
824  if (index >= MAX_CONNS)
825  {
826  INFO ("connection array overflow");
827  return 0;
828  }
829  if (index < 0)
830  {
831  INFO ("don't even try...");
832  return 0;
833  }
834  memif_connection_t *c = &memif_connection[index];
835  if (c->conn == NULL)
836  {
837  INFO ("no connection at index %ld", index);
838  return 0;
839  }
840 
841  char *end;
842  char *ui;
843  uint8_t tmp[4];
844  ui = strtok (ip, ".");
845  if (ui == NULL)
846  goto error;
847  tmp[0] = strtol (ui, &end, 10);
848 
849  ui = strtok (NULL, ".");
850  if (ui == NULL)
851  goto error;
852  tmp[1] = strtol (ui, &end, 10);
853 
854  ui = strtok (NULL, ".");
855  if (ui == NULL)
856  goto error;
857  tmp[2] = strtol (ui, &end, 10);
858 
859  ui = strtok (NULL, ".");
860  if (ui == NULL)
861  goto error;
862  tmp[3] = strtol (ui, &end, 10);
863 
864  c->ip_addr[0] = tmp[0];
865  c->ip_addr[1] = tmp[1];
866  c->ip_addr[2] = tmp[2];
867  c->ip_addr[3] = tmp[3];
868 
869  INFO ("memif %ld ip address set to %u.%u.%u.%u",
870  index, c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
871 
872  return 0;
873 
874 error:
875  INFO ("invalid ip address");
876  return 0;
877 }
878 
879 int
880 icmpr_set_rx_mode (long index, long qid, char *mode)
881 {
882  if (index >= MAX_CONNS)
883  {
884  INFO ("connection array overflow");
885  return 0;
886  }
887  if (index < 0)
888  {
889  INFO ("don't even try...");
890  return 0;
891  }
892  memif_connection_t *c = &memif_connection[index];
893 
894  if (c->conn == NULL)
895  {
896  INFO ("no connection at index %ld", index);
897  return 0;
898  }
899 
900  if (strncmp (mode, "interrupt", 9) == 0)
901  {
903  }
904 
905  else if (strncmp (mode, "polling", 7) == 0)
906  {
908  }
909  else
910  INFO ("expected rx mode <interrupt|polling>");
911  return 0;
912 }
913 
914 void
916 {
917  int i;
918  for (i = 0; i < MAX_CONNS; i++)
919  {
920  memif_connection_t *c = &memif_connection[i];
921  if (c->conn == NULL)
922  continue;
923  printf ("===============================\n");
924  printf ("interface index: %d\n", c->index);
925  printf ("\trx: %lu\n", c->rx_counter);
926  printf ("\ttx: %lu\n", c->tx_counter);
927  printf ("\ttx_err: %lu\n", c->tx_err_counter);
928  printf ("\tts: %lus %luns\n", c->t_sec, c->t_nsec);
929  }
930 }
931 
932 void
934 {
935  int i;
936  for (i = 0; i < MAX_CONNS; i++)
937  {
938  memif_connection_t *c = &memif_connection[i];
939  if (c->conn == NULL)
940  continue;
941  c->t_sec = c->t_nsec = c->tx_err_counter = c->tx_counter =
942  c->rx_counter = 0;
943  }
944 }
945 
946 void *
947 icmpr_send_proc (void *data)
948 {
950  int index = d->index;
951  uint64_t count = d->packet_num;
952  memif_connection_t *c = &memif_connection[index];
953  if (c->conn == NULL)
954  {
955  INFO ("No connection at index %d. Thread exiting...\n", index);
956  pthread_exit (NULL);
957  }
958  uint16_t tx, i;
959  int err = MEMIF_ERR_SUCCESS;
960  uint32_t seq = 0;
961  struct timespec start, end;
962  memset (&start, 0, sizeof (start));
963  memset (&end, 0, sizeof (end));
964 
965  timespec_get (&start, TIME_UTC);
966  while (count)
967  {
968  i = 0;
969  err = memif_buffer_alloc (c->conn, 0, c->tx_bufs,
971  count ? count : MAX_MEMIF_BUFS, &tx, 0);
972  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
973  {
974  INFO ("memif_buffer_alloc: %s Thread exiting...\n",
975  memif_strerror (err));
976  pthread_exit (NULL);
977  }
978  c->tx_buf_num += tx;
979 
980  while (tx)
981  {
982  while (tx > 2)
983  {
984  generate_packet ((void *) c->tx_bufs[i].data,
985  &c->tx_bufs[i].data_len, c->ip_addr,
986  d->ip_daddr, d->hw_daddr, seq++);
987  generate_packet ((void *) c->tx_bufs[i + 1].data,
988  &c->tx_bufs[i + 1].data_len, c->ip_addr,
989  d->ip_daddr, d->hw_daddr, seq++);
990  i += 2;
991  tx -= 2;
992  }
993  generate_packet ((void *) c->tx_bufs[i].data,
994  &c->tx_bufs[i].data_len, c->ip_addr,
995  d->ip_daddr, d->hw_daddr, seq++);
996  i++;
997  tx--;
998  }
999  err = memif_tx_burst (c->conn, 0, c->tx_bufs, c->tx_buf_num, &tx);
1000  if (err != MEMIF_ERR_SUCCESS)
1001  {
1002  INFO ("memif_tx_burst: %s Thread exiting...\n",
1003  memif_strerror (err));
1004  pthread_exit (NULL);
1005  }
1006  c->tx_buf_num -= tx;
1007  c->tx_counter += tx;
1008  count -= tx;
1009  }
1010  timespec_get (&end, TIME_UTC);
1011  INFO ("Pakcet sequence finished!");
1012  INFO ("Seq len: %u", seq);
1013  uint64_t t1 = end.tv_sec - start.tv_sec;
1014  uint64_t t2;
1015  if (end.tv_nsec > start.tv_nsec)
1016  {
1017  t2 = end.tv_nsec - start.tv_nsec;
1018  }
1019  else
1020  {
1021  t2 = start.tv_nsec - end.tv_nsec;
1022  t1--;
1023  }
1024  c->t_sec = t1;
1025  c->t_nsec = t2;
1026  INFO ("Seq time: %lus %luns", t1, t2);
1027  double tmp = t1;
1028  tmp += t2 / 1e+9;
1029  tmp = seq / tmp;
1030  INFO ("Average pps: %f", tmp);
1031  INFO ("Thread exiting...");
1032  pthread_exit (NULL);
1033 }
1034 
1035 int
1036 icmpr_send (long index, long packet_num, char *hw, char *ip)
1037 {
1038  memif_connection_t *c = &memif_connection[index];
1039  char *end;
1040  char *ui;
1041  uint8_t tmp[6];
1042  if (c->conn == NULL)
1043  return -1;
1044  c->seq = 0;
1045  icmpr_thread_data_t *data = &icmpr_thread_data[index];
1046  data->index = index;
1047  data->packet_num = packet_num;
1048  INFO ("PN: %lu", data->packet_num);
1049  printf ("%s\n", ip);
1050  printf ("%s\n", hw);
1051 
1052  ui = strtok (ip, ".");
1053  if (ui == NULL)
1054  goto error;
1055  tmp[0] = strtol (ui, &end, 10);
1056 
1057  ui = strtok (NULL, ".");
1058  if (ui == NULL)
1059  goto error;
1060  tmp[1] = strtol (ui, &end, 10);
1061 
1062  ui = strtok (NULL, ".");
1063  if (ui == NULL)
1064  goto error;
1065  tmp[2] = strtol (ui, &end, 10);
1066 
1067  ui = strtok (NULL, ".");
1068  if (ui == NULL)
1069  goto error;
1070  tmp[3] = strtol (ui, &end, 10);
1071 
1072  data->ip_daddr[0] = tmp[0];
1073  data->ip_daddr[1] = tmp[1];
1074  data->ip_daddr[2] = tmp[2];
1075  data->ip_daddr[3] = tmp[3];
1076 
1077  ui = strtok (hw, ":");
1078  if (ui == NULL)
1079  goto error;
1080  tmp[0] = strtol (ui, &end, 16);
1081  ui = strtok (NULL, ":");
1082  if (ui == NULL)
1083  goto error;
1084  tmp[1] = strtol (ui, &end, 16);
1085  ui = strtok (NULL, ":");
1086  if (ui == NULL)
1087  goto error;
1088  tmp[2] = strtol (ui, &end, 16);
1089  ui = strtok (NULL, ":");
1090  if (ui == NULL)
1091  goto error;
1092  tmp[3] = strtol (ui, &end, 16);
1093  ui = strtok (NULL, ":");
1094  if (ui == NULL)
1095  goto error;
1096  tmp[4] = strtol (ui, &end, 16);
1097  ui = strtok (NULL, ":");
1098  if (ui == NULL)
1099  goto error;
1100  tmp[5] = strtol (ui, &end, 16);
1101 
1102  data->hw_daddr[0] = tmp[0];
1103  data->hw_daddr[1] = tmp[1];
1104  data->hw_daddr[2] = tmp[2];
1105  data->hw_daddr[3] = tmp[3];
1106  data->hw_daddr[4] = tmp[4];
1107  data->hw_daddr[5] = tmp[5];
1108 
1109  pthread_create (&thread[index], NULL, icmpr_send_proc, (void *) data);
1110  return 0;
1111 
1112 error:
1113  INFO ("Invalid input\n");
1114  return 0;
1115 }
1116 
1117 int
1119 {
1120  int i;
1121  char *in = (char *) malloc (256);
1122  char *ui = fgets (in, 256, stdin);
1123  char *end;
1124  long a;
1125  if (in[0] == '\n')
1126  goto done;
1127  ui = strtok (in, " ");
1128  if (strncmp (ui, "exit", 4) == 0)
1129  {
1130  free (in);
1131  icmpr_free ();
1132  exit (EXIT_SUCCESS);
1133  }
1134  else if (strncmp (ui, "help", 4) == 0)
1135  {
1136  print_help ();
1137  goto done;
1138  }
1139  else if (strncmp (ui, "conn", 4) == 0)
1140  {
1141  ui = strtok (NULL, " ");
1142  if (ui != NULL)
1143  a = strtol (ui, &end, 10);
1144  else
1145  {
1146  INFO ("expected id");
1147  goto done;
1148  }
1149  ui = strtok (NULL, " ");
1150  if (ui != NULL)
1151  icmpr_memif_create (a, strtol (ui, &end, 10), strtok (NULL, " "));
1152  else
1153  INFO ("expected mode <0|1>");
1154  goto done;
1155  }
1156  else if (strncmp (ui, "del", 3) == 0)
1157  {
1158  ui = strtok (NULL, " ");
1159  if (ui != NULL)
1160  icmpr_memif_delete (strtol (ui, &end, 10));
1161  else
1162  INFO ("expected id");
1163  goto done;
1164  }
1165  else if (strncmp (ui, "show", 4) == 0)
1166  {
1168  goto done;
1169  }
1170  else if (strncmp (ui, "ip-set", 6) == 0)
1171  {
1172  ui = strtok (NULL, " ");
1173  if (ui != NULL)
1174  icmpr_set_ip (strtol (ui, &end, 10), strtok (NULL, " "));
1175  else
1176  INFO ("expected id");
1177  goto done;
1178  }
1179  else if (strncmp (ui, "rx-mode", 7) == 0)
1180  {
1181  ui = strtok (NULL, " ");
1182  if (ui != NULL)
1183  a = strtol (ui, &end, 10);
1184  else
1185  {
1186  INFO ("expected id");
1187  goto done;
1188  }
1189  ui = strtok (NULL, " ");
1190  if (ui != NULL)
1191  icmpr_set_rx_mode (a, strtol (ui, &end, 10), strtok (NULL, " "));
1192  else
1193  INFO ("expected qid");
1194  goto done;
1195  }
1196  else if (strncmp (ui, "sh-count", 8) == 0)
1197  {
1199  }
1200  else if (strncmp (ui, "cl-count", 8) == 0)
1201  {
1203  }
1204  else if (strncmp (ui, "send", 4) == 0)
1205  {
1206  ui = strtok (NULL, " ");
1207  if (ui != NULL)
1208  a = strtol (ui, &end, 10);
1209  else
1210  {
1211  INFO ("expected id");
1212  goto done;
1213  }
1214  ui = strtok (NULL, " ");
1215  if (ui != NULL)
1216  icmpr_send (a, strtol (ui, &end, 10), strtok (NULL, " "),
1217  strtok (NULL, " "));
1218  else
1219  INFO ("expected count");
1220  goto done;
1221  }
1222  else
1223  {
1224  INFO ("unknown command: %s", ui);
1225  goto done;
1226  }
1227 
1228  return 0;
1229 done:
1230  free (in);
1231  return 0;
1232 }
1233 
1234 int
1235 poll_event (int timeout)
1236 {
1237  struct epoll_event evt, *e;
1238  int app_err = 0, memif_err = 0, en = 0;
1239  int tmp, nfd;
1240  uint32_t events = 0;
1241  struct timespec start, end;
1242  memset (&evt, 0, sizeof (evt));
1243  evt.events = EPOLLIN | EPOLLOUT;
1244  sigset_t sigset;
1245  sigemptyset (&sigset);
1246  en = epoll_pwait (epfd, &evt, 1, timeout, &sigset);
1247  /* id event polled */
1248  timespec_get (&start, TIME_UTC);
1249  if (en < 0)
1250  {
1251  DBG ("epoll_pwait: %s", strerror (errno));
1252  return -1;
1253  }
1254  if (en > 0)
1255  {
1256  /* this app does not use any other file descriptors than stds and memif control fds */
1257  if (evt.data.fd > 2)
1258  {
1259  /* event of memif control fd */
1260  /* convert epolle events to memif events */
1261  if (evt.events & EPOLLIN)
1262  events |= MEMIF_FD_EVENT_READ;
1263  if (evt.events & EPOLLOUT)
1264  events |= MEMIF_FD_EVENT_WRITE;
1265  if (evt.events & EPOLLERR)
1266  events |= MEMIF_FD_EVENT_ERROR;
1267  memif_err = memif_control_fd_handler (evt.data.fd, events);
1268  if (memif_err != MEMIF_ERR_SUCCESS)
1269  INFO ("memif_control_fd_handler: %s", memif_strerror (memif_err));
1270  }
1271  else if (evt.data.fd == 0)
1272  {
1273  app_err = user_input_handler ();
1274  }
1275  else
1276  {
1277  DBG ("unexpected event at memif_epfd. fd %d", evt.data.fd);
1278  }
1279  }
1280 
1281  timespec_get (&end, TIME_UTC);
1282  LOG ("interrupt: %ld", end.tv_nsec - start.tv_nsec);
1283 
1284  if ((app_err < 0) || (memif_err < 0))
1285  {
1286  if (app_err < 0)
1287  DBG ("user input handler error");
1288  if (memif_err < 0)
1289  DBG ("memif control fd handler error");
1290  return -1;
1291  }
1292 
1293  return 0;
1294 }
1295 
1296 int
1298 {
1299  epfd = epoll_create (1);
1300  add_epoll_fd (0, EPOLLIN);
1301 
1302 #ifdef LOG_FILE
1303  remove (LOG_FILE);
1304  enable_log = 0;
1305 
1306  out_fd = open (LOG_FILE, O_WRONLY | O_CREAT, S_IRWXO);
1307  if (out_fd < 0)
1308  INFO ("Error opening log file: %s", strerror (errno));
1309 #endif /* LOG_FILE */
1310 
1311  /* initialize memory interface */
1312  int err, i;
1313  /* if valid callback is passed as argument, fd event polling will be done by user
1314  all file descriptors and events will be passed to user in this callback */
1315  /* if callback is set to NULL libmemif will handle fd event polling */
1317  if (err != MEMIF_ERR_SUCCESS)
1318  INFO ("memif_init: %s", memif_strerror (err));
1319 
1320  for (i = 0; i < MAX_CONNS; i++)
1321  {
1322  memif_connection[i].conn = NULL;
1323  ctx[i] = i;
1324  }
1325 
1326  print_help ();
1327 
1328  /* main loop */
1329  while (1)
1330  {
1331  if (poll_event (-1) < 0)
1332  {
1333  DBG ("poll_event error!");
1334  }
1335  }
1336 }
void icmpr_reset_counters()
Definition: main.c:933
uint64_t rx_counter
Definition: main.c:107
int on_interrupt1(memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
Definition: main.c:571
#define IF_NAME
Definition: main.c:54
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:337
int icmpr_memif_delete()
Definition: main.c:193
memif_log2_ring_size_t log2_ring_size
Definition: libmemif.h:167
int mod_epoll_fd(int fd, uint32_t events)
Definition: main.c:236
void print_help()
Definition: main.c:204
a
Definition: bitmap.h:516
uint8_t * inst_name
Definition: libmemif.h:244
uint8_t * secret
Definition: libmemif.h:249
void * icmpr_send_proc(void *data)
Definition: main.c:947
int on_disconnect(memif_conn_handle_t conn, void *private_ctx)
Definition: main.c:186
uint16_t seq
Definition: main.c:106
#define MEMIF_FD_EVENT_READ
user needs to set events that occured on fd and pass them to memif_control_fd_handler ...
Definition: libmemif.h:88
int on_interrupt0(memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
Definition: main.c:458
uint8_t num_m2s_rings
Definition: libmemif.h:165
int control_fd_update(int fd, uint8_t events)
Definition: main.c:297
#define NULL
Definition: clib.h:55
uint16_t buffer_size
Definition: libmemif.h:166
memif_interface_id_t interface_id
Definition: libmemif.h:170
int out_fd
Definition: main.c:86
int icmpr_set_ip(long index, char *ip)
Definition: main.c:822
uint8_t * remote_inst_name
Definition: libmemif.h:246
pthread_t thread[MAX_CONNS]
Definition: main.c:121
#define LIBMEMIF_VERSION
Libmemif version.
Definition: libmemif.h:26
int on_connect(memif_conn_handle_t conn, void *private_ctx)
Definition: main.c:177
uint8_t num_s2m_rings
Definition: libmemif.h:164
int icmpr_free()
Definition: main.c:258
int memif_get_details(memif_conn_handle_t conn, memif_details_t *md, char *buf, ssize_t buflen)
Memif get details.
Definition: main.c:1950
int icmpr_set_rx_mode(long index, long qid, char *mode)
Definition: main.c:880
memif_interface_mode_t mode
Definition: libmemif.h:173
int memif_buffer_free(memif_conn_handle_t conn, uint16_t qid, memif_buffer_t *bufs, uint16_t count, uint16_t *count_out)
Memif buffer free.
Definition: main.c:1493
uint8_t mode
Definition: libmemif.h:251
uint8_t link_up_down
Definition: libmemif.h:258
char * memif_strerror(int err_code)
Memif strerror.
Definition: main.c:153
int icmpr_memif_create(int is_master)
Definition: main.c:337
memif_conn_handle_t conn
Definition: main.c:76
#define APP_NAME
Definition: main.c:53
int del_epoll_fd(int fd)
Definition: main.c:257
#define MAX_MEMIF_BUFS
Definition: main.c:82
uint8_t ip_addr[4]
Definition: main.c:90
uint16_t rx_buf_num
Definition: main.c:88
#define MAX_CONNS
Definition: main.c:83
uint8_t interface_name[32]
Definition: libmemif.h:171
void * data
Definition: libmemif.h:194
int resolve_packet(void *in_pck, ssize_t in_size, void *out_pck, uint32_t *out_size, uint8_t ip_addr[4])
Definition: icmp_proto.c:207
uint16_t buffer_size
Definition: libmemif.h:222
uint8_t * socket_filename
Definition: libmemif.h:252
#define MEMIF_FD_EVENT_DEL
if set, informs that fd is going to be closed (user may want to stop watching for events on this fd) ...
Definition: libmemif.h:93
int memif_set_rx_mode(memif_conn_handle_t c, memif_rx_mode_t rx_mode, uint16_t qid)
Memif set rx mode.
Definition: main.c:520
struct memif_connection memif_connection_t
uint8_t hw_daddr[6]
Definition: main.c:116
uint8_t is_master
Definition: libmemif.h:168
uint8_t rx_queues_num
Definition: libmemif.h:253
#define DBG(...)
Definition: main.c:71
void icmpr_print_counters()
Definition: main.c:915
uint64_t tx_counter
Definition: main.c:107
int icmpr_tx_burst(uint16_t qid)
Definition: main.c:242
uint16_t tx_buf_num
Definition: main.c:83
int on_interrupt(memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
Definition: main.c:287
svmdb_client_t * c
int memif_tx_burst(memif_conn_handle_t conn, uint16_t qid, memif_buffer_t *bufs, uint16_t count, uint16_t *tx)
Memif transmit buffer burst.
Definition: main.c:1564
int memif_buffer_alloc(memif_conn_handle_t conn, uint16_t qid, memif_buffer_t *bufs, uint16_t count, uint16_t *count_out, uint16_t size)
Memif buffer alloc.
Definition: main.c:1380
int add_epoll_fd(int fd, uint32_t events)
Definition: main.c:215
memif_queue_details_t * rx_queues
Definition: libmemif.h:255
uint8_t role
Definition: libmemif.h:250
int icmpr_send(long index, long packet_num, char *hw, char *ip)
Definition: main.c:1036
#define INFO(...)
Definition: main.c:75
uint8_t instance_name[32]
Definition: libmemif.h:172
uint8_t enable_log
Definition: main.c:87
int memif_cleanup()
Memif cleanup.
Definition: main.c:2096
#define LOG(...)
Definition: main.c:72
uint8_t ip_daddr[4]
Definition: main.c:115
int memif_create(memif_conn_handle_t *c, memif_conn_args_t *args, memif_connection_update_t *on_connect, memif_connection_update_t *on_disconnect, memif_interrupt_t *on_interrupt, void *private_ctx)
Memory interface create function.
Definition: main.c:538
int generate_packet(void *pck, uint32_t *size, uint8_t saddr[4], uint8_t daddr[4], uint8_t hw_daddr[6], uint32_t seq)
Definition: icmp_proto.c:313
long ctx[MAX_CONNS]
Definition: main.c:122
#define MEMIF_VERSION
Definition: memif.h:28
int poll_event(int timeout)
Definition: main.c:1235
uint64_t t_sec
Definition: main.c:108
uint8_t tx_queues_num
Definition: libmemif.h:254
size_t count
Definition: vapi.c:42
uint16_t index
Definition: main.c:113
void * memif_conn_handle_t
*brief Memif connection handle pointer of type void, pointing to internal structure ...
Definition: libmemif.h:101
uint64_t packet_num
Definition: main.c:114
int icmpr_buffer_alloc(long n, uint16_t qid)
Definition: main.c:222
int memif_control_fd_handler(int fd, uint8_t events)
Memif control file descriptor handler.
Definition: main.c:787
uint64_t tx_err_counter
Definition: main.c:107
int epfd
Definition: main.c:94
int memif_init(memif_control_fd_update_t *on_control_fd_update, char *app_name)
Memif initialization.
Definition: main.c:405
uint32_t id
Definition: libmemif.h:248
int memif_rx_burst(memif_conn_handle_t conn, uint16_t qid, memif_buffer_t *bufs, uint16_t count, uint16_t *rx)
Memif receive buffer burst.
Definition: main.c:1787
uint64_t t_nsec
Definition: main.c:108
int memif_delete(memif_conn_handle_t *conn)
Memif delete.
Definition: main.c:1111
static void print_memif_details()
Definition: main.c:126
#define MEMIF_FD_EVENT_ERROR
inform libmemif that error occured on fd
Definition: libmemif.h:91
#define MEMIF_FD_EVENT_MOD
update events
Definition: libmemif.h:95
int main(int argc, char *argv[])
Definition: main.c:56
memif_queue_details_t * tx_queues
Definition: libmemif.h:256
uint8_t * if_name
Definition: libmemif.h:243
uint16_t index
Definition: main.c:74
Memif buffer.
Definition: libmemif.h:189
#define MEMIF_FD_EVENT_WRITE
Definition: libmemif.h:89
memif_buffer_t * tx_bufs
Definition: main.c:80
Memif connection arguments.
Definition: libmemif.h:159
int user_input_handler()
Definition: main.c:1118
Memif details.
Definition: libmemif.h:241
uint8_t * remote_if_name
Definition: libmemif.h:245
uint32_t data_len
Definition: libmemif.h:193
memif_buffer_t * rx_bufs
Definition: main.c:85