FD.io VPP  v18.10-34-gcce845e
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 #ifndef TIME_UTC
51 #define TIME_UTC 1
52 #endif
53 
54 #include <libmemif.h>
55 #include <icmp_proto.h>
56 
57 #define APP_NAME "ICMP_Responder"
58 #define IF_NAME "memif_connection"
59 
60 
61 #ifdef ICMP_DBG
62 #define DBG(...) do { \
63  printf (APP_NAME":%s:%d: ", __func__, __LINE__); \
64  printf (__VA_ARGS__); \
65  printf ("\n"); \
66  } while (0)
67 #define LOG(...) do { \
68  if (enable_log) { \
69  dprintf (out_fd, __VA_ARGS__); \
70  dprintf (out_fd, "\n"); \
71  } \
72  } while (0)
73 #define LOG_FILE "/tmp/memif_time_test.txt"
74 #else
75 #define DBG(...)
76 #define LOG(...)
77 #endif
78 
79 #define INFO(...) do { \
80  printf ("INFO: "__VA_ARGS__); \
81  printf ("\n"); \
82  } while (0)
83 
84 
85 /* maximum tx/rx memif buffers */
86 #define MAX_MEMIF_BUFS 256
87 #define MAX_CONNS 50
88 
89 #define ICMPR_HEADROOM 64
90 
91 int epfd;
92 int out_fd;
93 uint8_t enable_log;
94 
95 typedef struct
96 {
97  uint16_t index;
98  /* memif conenction handle */
100  /* tx buffers */
101  memif_buffer_t *tx_bufs;
102  /* allocated tx buffers counter */
103  /* number of tx buffers pointing to shared memory */
104  uint16_t tx_buf_num;
105  /* rx buffers */
106  memif_buffer_t *rx_bufs;
107  /* allcoated rx buffers counter */
108  /* number of rx buffers pointing to shared memory */
109  uint16_t rx_buf_num;
110  /* interface ip address */
111  uint8_t ip_addr[4];
112  uint16_t seq;
113  uint64_t tx_counter, rx_counter, tx_err_counter;
114  uint64_t t_sec, t_nsec;
116 
117 typedef struct
118 {
119  uint16_t index;
120  uint64_t packet_num;
121  uint8_t ip_daddr[4];
122  uint8_t hw_daddr[6];
124 
125 memif_connection_t memif_connection[MAX_CONNS];
126 icmpr_thread_data_t icmpr_thread_data[MAX_CONNS];
127 pthread_t thread[MAX_CONNS];
129 
130 /* print details for all memif connections */
131 static void
133 {
134  memif_details_t md;
135  ssize_t buflen;
136  char *buf;
137  int err, i, e;
138  buflen = 2048;
139  buf = malloc (buflen);
140  printf ("MEMIF DETAILS\n");
141  printf ("==============================\n");
142  for (i = 0; i < MAX_CONNS; i++)
143  {
144  memif_connection_t *c = &memif_connection[i];
145 
146  memset (&md, 0, sizeof (md));
147  memset (buf, 0, buflen);
148 
149  err = memif_get_details (c->conn, &md, buf, buflen);
150  if (err != MEMIF_ERR_SUCCESS)
151  {
152  if (err != MEMIF_ERR_NOCONN)
153  INFO ("%s", memif_strerror (err));
154  continue;
155  }
156 
157  printf ("interface index: %d\n", i);
158 
159  printf ("\tinterface ip: %u.%u.%u.%u\n",
160  c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
161  printf ("\tinterface name: %s\n", (char *) md.if_name);
162  printf ("\tapp name: %s\n", (char *) md.inst_name);
163  printf ("\tremote interface name: %s\n", (char *) md.remote_if_name);
164  printf ("\tremote app name: %s\n", (char *) md.remote_inst_name);
165  printf ("\tid: %u\n", md.id);
166  printf ("\tsecret: %s\n", (char *) md.secret);
167  printf ("\trole: ");
168  if (md.role)
169  printf ("slave\n");
170  else
171  printf ("master\n");
172  printf ("\tmode: ");
173  switch (md.mode)
174  {
175  case 0:
176  printf ("ethernet\n");
177  break;
178  case 1:
179  printf ("ip\n");
180  break;
181  case 2:
182  printf ("punt/inject\n");
183  break;
184  default:
185  printf ("unknown\n");
186  break;
187  }
188  printf ("\tsocket filename: %s\n", (char *) md.socket_filename);
189  printf ("\trx queues:\n");
190  for (e = 0; e < md.rx_queues_num; e++)
191  {
192  printf ("\t\tqueue id: %u\n", md.rx_queues[e].qid);
193  printf ("\t\tring size: %u\n", md.rx_queues[e].ring_size);
194  printf ("\t\tring rx mode: %s\n",
195  md.rx_queues[e].flags ? "polling" : "interrupt");
196  printf ("\t\tring head: %u\n", md.rx_queues[e].head);
197  printf ("\t\tring tail: %u\n", md.rx_queues[e].tail);
198  printf ("\t\tbuffer size: %u\n", md.rx_queues[e].buffer_size);
199  }
200  printf ("\ttx queues:\n");
201  for (e = 0; e < md.tx_queues_num; e++)
202  {
203  printf ("\t\tqueue id: %u\n", md.tx_queues[e].qid);
204  printf ("\t\tring size: %u\n", md.tx_queues[e].ring_size);
205  printf ("\t\tring rx mode: %s\n",
206  md.tx_queues[e].flags ? "polling" : "interrupt");
207  printf ("\t\tring head: %u\n", md.tx_queues[e].head);
208  printf ("\t\tring tail: %u\n", md.tx_queues[e].tail);
209  printf ("\t\tbuffer size: %u\n", md.tx_queues[e].buffer_size);
210  }
211  printf ("\tlink: ");
212  if (md.link_up_down)
213  printf ("up\n");
214  else
215  {
216  printf ("down\n");
217  printf ("\treason: %s\n", md.error);
218  }
219  }
220  free (buf);
221 }
222 
223 int
224 add_epoll_fd (int fd, uint32_t events)
225 {
226  if (fd < 0)
227  {
228  DBG ("invalid fd %d", fd);
229  return -1;
230  }
231  struct epoll_event evt;
232  memset (&evt, 0, sizeof (evt));
233  evt.events = events;
234  evt.data.fd = fd;
235  if (epoll_ctl (epfd, EPOLL_CTL_ADD, fd, &evt) < 0)
236  {
237  DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
238  return -1;
239  }
240  DBG ("fd %d added to epoll", fd);
241  return 0;
242 }
243 
244 int
245 mod_epoll_fd (int fd, uint32_t events)
246 {
247  if (fd < 0)
248  {
249  DBG ("invalid fd %d", fd);
250  return -1;
251  }
252  struct epoll_event evt;
253  memset (&evt, 0, sizeof (evt));
254  evt.events = events;
255  evt.data.fd = fd;
256  if (epoll_ctl (epfd, EPOLL_CTL_MOD, fd, &evt) < 0)
257  {
258  DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
259  return -1;
260  }
261  DBG ("fd %d moddified on epoll", fd);
262  return 0;
263 }
264 
265 int
266 del_epoll_fd (int fd)
267 {
268  if (fd < 0)
269  {
270  DBG ("invalid fd %d", fd);
271  return -1;
272  }
273  struct epoll_event evt;
274  memset (&evt, 0, sizeof (evt));
275  if (epoll_ctl (epfd, EPOLL_CTL_DEL, fd, &evt) < 0)
276  {
277  DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
278  return -1;
279  }
280  DBG ("fd %d removed from epoll", fd);
281  return 0;
282 }
283 
284 /* informs user about connected status. private_ctx is used by user to identify connection
285  (multiple connections WIP) */
286 int
287 on_connect (memif_conn_handle_t conn, void *private_ctx)
288 {
289  INFO ("memif connected!");
290  memif_refill_queue (conn, 0, -1, ICMPR_HEADROOM);
291  enable_log = 1;
292  return 0;
293 }
294 
295 /* informs user about disconnected status. private_ctx is used by user to identify connection
296  (multiple connections WIP) */
297 int
298 on_disconnect (memif_conn_handle_t conn, void *private_ctx)
299 {
300  INFO ("memif disconnected!");
301  return 0;
302 }
303 
304 /* user needs to watch new fd or stop watching fd that is about to be closed.
305  control fd will be modified during connection establishment to minimize CPU usage */
306 int
307 control_fd_update (int fd, uint8_t events)
308 {
309  /* convert memif event definitions to epoll events */
310  if (events & MEMIF_FD_EVENT_DEL)
311  return del_epoll_fd (fd);
312 
313  uint32_t evt = 0;
314  if (events & MEMIF_FD_EVENT_READ)
315  evt |= EPOLLIN;
316  if (events & MEMIF_FD_EVENT_WRITE)
317  evt |= EPOLLOUT;
318 
319  if (events & MEMIF_FD_EVENT_MOD)
320  return mod_epoll_fd (fd, evt);
321 
322  return add_epoll_fd (fd, evt);
323 }
324 
325 int
326 icmpr_buffer_alloc (long index, long n, uint16_t * r, uint16_t i,
327  uint16_t qid)
328 {
329  memif_connection_t *c = &memif_connection[index];
330  int err;
331  /* set data pointer to shared memory and set buffer_len to shared mmeory buffer len */
332  err = memif_buffer_alloc (c->conn, qid, c->tx_bufs + i, n, r, 128);
333  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
334  {
335  INFO ("memif_buffer_alloc: %s", memif_strerror (err));
336  return -1;
337  }
338  c->tx_buf_num += *r;
339  DBG ("allocated %d/%ld buffers, %u free buffers", *r, n,
341  return 0;
342 }
343 
344 int
345 icmpr_tx_burst (long index, uint16_t qid)
346 {
347  memif_connection_t *c = &memif_connection[index];
348  int err;
349  uint16_t r;
350  /* inform peer memif interface about data in shared memory buffers */
351  /* mark memif buffers as free */
352  err = memif_tx_burst (c->conn, qid, c->tx_bufs, c->tx_buf_num, &r);
353  if (err != MEMIF_ERR_SUCCESS)
354  INFO ("memif_tx_burst: %s", memif_strerror (err));
355  c->tx_buf_num -= r;
356  c->tx_counter += r;
357  return 0;
358 }
359 
360 /* called when event is polled on interrupt file descriptor.
361  there are packets in shared memory ready to be received */
362 int
363 on_interrupt (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
364 {
365  long index = *((long *) private_ctx);
366  memif_connection_t *c = &memif_connection[index];
367  if (c->index != index)
368  {
369  INFO ("invalid context: %ld/%u", index, c->index);
370  return 0;
371  }
372 
373  int err = MEMIF_ERR_SUCCESS, ret_val;
374  uint16_t rx = 0, tx = 0;
375  uint16_t fb = 0;
376  int i = 0; /* rx buffer iterator */
377  int j = 0; /* tx bufferiterator */
378 
379  /* loop while there are packets in shm */
380  do
381  {
382  /* receive data from shared memory buffers */
383  err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
384  ret_val = err;
385  c->rx_counter += rx;
386  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
387  {
388  INFO ("memif_rx_burst: %s", memif_strerror (err));
389  goto error;
390  }
391 
392  i = 0;
393  memset (c->tx_bufs, 0, sizeof (memif_buffer_t) * rx);
394  err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 128);
395  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
396  {
397  INFO ("memif_buffer_alloc: %s", memif_strerror (err));
398  goto error;
399  }
400  j = 0;
401  c->tx_err_counter += rx - tx;
402 
403  while (tx)
404  {
405  resolve_packet ((void *) (c->rx_bufs + i)->data,
406  (c->rx_bufs + i)->len,
407  (void *) (c->tx_bufs + j)->data,
408  &(c->tx_bufs + j)->len, c->ip_addr);
409  i++;
410  j++;
411  tx--;
412  }
413 
414  err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
415  if (err != MEMIF_ERR_SUCCESS)
416  INFO ("memif_buffer_free: %s", memif_strerror (err));
417  rx -= rx;
418 
419  DBG ("%u/%u alloc/free buffers", rx, MAX_MEMIF_BUFS - rx);
420 
421  err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
422  if (err != MEMIF_ERR_SUCCESS)
423  {
424  INFO ("memif_tx_burst: %s", memif_strerror (err));
425  goto error;
426  }
427  c->tx_counter += tx;
428 
429  }
430  while (ret_val == MEMIF_ERR_NOBUF);
431 
432  return 0;
433 
434 error:
435  err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
436  if (err != MEMIF_ERR_SUCCESS)
437  INFO ("memif_buffer_free: %s", memif_strerror (err));
438  c->rx_buf_num -= rx;
439  DBG ("freed %d buffers. %u/%u alloc/free buffers",
440  fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
441  return 0;
442 }
443 
444 /* called when event is polled on interrupt file descriptor.
445  there are packets in shared memory ready to be received */
446 /* dev test modification: loop until TX == RX (don't drop buffers) */
447 int
448 on_interrupt0 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
449 {
450  long index = *((long *) private_ctx);
451  memif_connection_t *c = &memif_connection[index];
452  if (c->index != index)
453  {
454  INFO ("invalid context: %ld/%u", index, c->index);
455  return 0;
456  }
457 
458  int err = MEMIF_ERR_SUCCESS, ret_val;
459  uint16_t rx = 0, tx = 0;
460  uint16_t fb;
461  int i; /* rx buffer iterator */
462  int j; /* tx bufferiterator */
463  int prev_i; /* first allocated rx buffer */
464 
465  /* loop while there are packets in shm */
466  do
467  {
468  /* receive data from shared memory buffers */
469  err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
470  ret_val = err;
471  c->rx_counter += rx;
472  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
473  {
474  INFO ("memif_rx_burst: %s", memif_strerror (err));
475  goto error;
476  }
477 
478  prev_i = i = 0;
479 
480  /* loop while there are RX buffers to be processed */
481  while (rx)
482  {
483 
484  /* try to alloc required number of buffers buffers */
485  err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 128);
486  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
487  {
488  INFO ("memif_buffer_alloc: %s", memif_strerror (err));
489  goto error;
490  }
491  j = 0;
492 
493  /* process bufers */
494  while (tx)
495  {
496  while (tx > 2)
497  {
498  resolve_packet ((void *) (c->rx_bufs + i)->data,
499  (c->rx_bufs + i)->len,
500  (void *) (c->tx_bufs + j)->data,
501  &(c->tx_bufs + j)->len, c->ip_addr);
502  resolve_packet ((void *) (c->rx_bufs + i + 1)->data,
503  (c->rx_bufs + i + 1)->len,
504  (void *) (c->tx_bufs + j + 1)->data,
505  &(c->tx_bufs + j + 1)->len, c->ip_addr);
506 
507  i += 2;
508  j += 2;
509  tx -= 2;
510  }
511  resolve_packet ((void *) (c->rx_bufs + i)->data,
512  (c->rx_bufs + i)->len,
513  (void *) (c->tx_bufs + j)->data,
514  &(c->tx_bufs + j)->len, c->ip_addr);
515  i++;
516  j++;
517  tx--;
518  }
519  /* mark memif buffers and shared memory buffers as free */
520  /* free processed buffers */
521  err = memif_refill_queue (c->conn, qid, j, ICMPR_HEADROOM);
522  if (err != MEMIF_ERR_SUCCESS)
523  INFO ("memif_buffer_free: %s", memif_strerror (err));
524  rx -= j;
525  prev_i = i;
526 
527  DBG ("freed %d buffers. %u/%u alloc/free buffers",
528  fb, rx, MAX_MEMIF_BUFS - rx);
529 
530  /* transmit allocated buffers */
531  err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
532  if (err != MEMIF_ERR_SUCCESS)
533  {
534  INFO ("memif_tx_burst: %s", memif_strerror (err));
535  goto error;
536  }
537  c->tx_counter += tx;
538 
539  }
540 
541  }
542  while (ret_val == MEMIF_ERR_NOBUF);
543 
544  return 0;
545 
546 error:
547  err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
548  if (err != MEMIF_ERR_SUCCESS)
549  INFO ("memif_buffer_free: %s", memif_strerror (err));
550  c->rx_buf_num -= rx;
551  DBG ("freed %d buffers. %u/%u alloc/free buffers",
552  fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
553  return 0;
554 }
555 
556 /* called when event is polled on interrupt file descriptor.
557  there are packets in shared memory ready to be received */
558 /* dev test modification: handle only ARP requests */
559 int
560 on_interrupt1 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
561 {
562  long index = *((long *) private_ctx);
563  memif_connection_t *c = &memif_connection[index];
564  if (c->index != index)
565  {
566  INFO ("invalid context: %ld/%u", index, c->index);
567  return 0;
568  }
569 
570  int err = MEMIF_ERR_SUCCESS, ret_val;
571  int i;
572  uint16_t rx, tx;
573  uint16_t fb;
574  uint16_t pck_seq;
575 
576  do
577  {
578  /* receive data from shared memory buffers */
579  err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
580  ret_val = err;
581  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
582  {
583  INFO ("memif_rx_burst: %s", memif_strerror (err));
584  goto error;
585  }
586  c->rx_buf_num += rx;
587  c->rx_counter += rx;
588 
589  for (i = 0; i < rx; i++)
590  {
591  if (((struct ether_header *) (c->rx_bufs + i)->data)->ether_type ==
592  0x0608)
593  {
594  if (icmpr_buffer_alloc (c->index, 1, &tx, i, qid) < 0)
595  break;
596  resolve_packet ((void *) (c->rx_bufs + i)->data,
597  (c->rx_bufs + i)->len,
598  (void *) (c->tx_bufs + i)->data,
599  &(c->tx_bufs + i)->len, c->ip_addr);
600  icmpr_tx_burst (c->index, qid);
601  }
602  }
603 
604  err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
605  if (err != MEMIF_ERR_SUCCESS)
606  INFO ("memif_buffer_free: %s", memif_strerror (err));
607  c->rx_buf_num -= rx;
608 
609 
610  }
611  while (ret_val == MEMIF_ERR_NOBUF);
612 
613  return 0;
614 
615 error:
616  err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
617  if (err != MEMIF_ERR_SUCCESS)
618  INFO ("memif_buffer_free: %s", memif_strerror (err));
619  c->rx_buf_num -= rx;
620  DBG ("freed %d buffers. %u/%u alloc/free buffers",
621  fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
622  return 0;
623 }
624 
625 int
626 icmpr_memif_create (long index, long mode, char *s)
627 {
628  if (index >= MAX_CONNS)
629  {
630  INFO ("connection array overflow");
631  return 0;
632  }
633  if (index < 0)
634  {
635  INFO ("don't even try...");
636  return 0;
637  }
638  memif_connection_t *c = &memif_connection[index];
639 
640  /* setting memif connection arguments */
641  memif_conn_args_t args;
642  int fd = -1;
643  memset (&args, 0, sizeof (args));
644  args.is_master = mode;
645  args.log2_ring_size = 11;
646  args.buffer_size = 2048;
647  args.num_s2m_rings = 1;
648  args.num_m2s_rings = 1;
649  strncpy ((char *) args.interface_name, IF_NAME, strlen (IF_NAME));
650  args.mode = 0;
651  /* socket filename is not specified, because this app is supposed to
652  connect to VPP over memif. so default socket filename will be used */
653  /* default socketfile = /run/vpp/memif.sock */
654 
655  args.interface_id = index;
656  /* last argument for memif_create (void * private_ctx) is used by user
657  to identify connection. this context is returned with callbacks */
658  int err;
659  /* default interrupt */
660  if (s == NULL)
661  {
662  err = memif_create (&c->conn,
664  &ctx[index]);
665  if (err != MEMIF_ERR_SUCCESS)
666  {
667  INFO ("memif_create: %s", memif_strerror (err));
668  return 0;
669  }
670  }
671  else
672  {
673  if (strncmp (s, "0", 1) == 0)
674  {
675  err = memif_create (&c->conn,
677  &ctx[index]);
678  if (err != MEMIF_ERR_SUCCESS)
679  {
680  INFO ("memif_create: %s", memif_strerror (err));
681  return 0;
682  }
683  }
684  else if (strncmp (s, "1", 1) == 0)
685  {
686  err = memif_create (&c->conn,
688  &ctx[index]);
689  if (err != MEMIF_ERR_SUCCESS)
690  {
691  INFO ("memif_create: %s", memif_strerror (err));
692  return 0;
693  }
694  }
695  else
696  {
697  INFO ("Unknown interrupt descriptor");
698  goto done;
699  }
700  }
701 
702  c->index = index;
703  /* alloc memif buffers */
704  c->rx_buf_num = 0;
705  c->rx_bufs =
706  (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
707  c->tx_buf_num = 0;
708  c->tx_bufs =
709  (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
710 
711  c->ip_addr[0] = 192;
712  c->ip_addr[1] = 168;
713  c->ip_addr[2] = c->index + 1;
714  c->ip_addr[3] = 2;
715 
716  c->seq = c->tx_err_counter = c->tx_counter = c->rx_counter = 0;
717 
718 done:
719  return 0;
720 }
721 
722 int
723 icmpr_memif_delete (long index)
724 {
725  if (index >= MAX_CONNS)
726  {
727  INFO ("connection array overflow");
728  return 0;
729  }
730  if (index < 0)
731  {
732  INFO ("don't even try...");
733  return 0;
734  }
735  memif_connection_t *c = &memif_connection[index];
736 
737  if (c->rx_bufs)
738  free (c->rx_bufs);
739  c->rx_bufs = NULL;
740  c->rx_buf_num = 0;
741  if (c->tx_bufs)
742  free (c->tx_bufs);
743  c->tx_bufs = NULL;
744  c->tx_buf_num = 0;
745 
746  int err;
747  /* disconenct then delete memif connection */
748  err = memif_delete (&c->conn);
749  if (err != MEMIF_ERR_SUCCESS)
750  INFO ("memif_delete: %s", memif_strerror (err));
751  if (c->conn != NULL)
752  INFO ("memif delete fail");
753  return 0;
754 }
755 
756 void
758 {
759  printf ("LIBMEMIF EXAMPLE APP: %s", APP_NAME);
760 #ifdef ICMP_DBG
761  printf (" (debug)");
762 #endif
763  printf ("\n");
764  printf ("==============================\n");
765  printf ("libmemif version: %s", LIBMEMIF_VERSION);
766 #ifdef MEMIF_DBG
767  printf (" (debug)");
768 #endif
769  printf ("\n");
770  printf ("memif version: %d\n", memif_get_version ());
771  printf ("commands:\n");
772  printf ("\thelp - prints this help\n");
773  printf ("\texit - exit app\n");
774  printf
775  ("\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");
776  printf ("\tdel <index> - delete memif\n");
777  printf ("\tshow - show connection details\n");
778  printf ("\tip-set <index> <ip-addr> - set interface ip address\n");
779  printf
780  ("\trx-mode <index> <qid> <polling|interrupt> - set queue rx mode\n");
781  printf ("\tsh-count - print counters\n");
782  printf ("\tcl-count - clear counters\n");
783  printf ("\tsend <index> <tx> <ip> <mac> - send icmp\n");
784 }
785 
786 int
788 {
789  /* application cleanup */
790  int err;
791  long i;
792  if (out_fd > 0)
793  close (out_fd);
794  out_fd = -1;
795  for (i = 0; i < MAX_CONNS; i++)
796  {
797  memif_connection_t *c = &memif_connection[i];
798  if (c->conn)
799  icmpr_memif_delete (i);
800  }
801 
802  err = memif_cleanup ();
803  if (err != MEMIF_ERR_SUCCESS)
804  INFO ("memif_delete: %s", memif_strerror (err));
805 
806  return 0;
807 }
808 
809 int
810 icmpr_set_ip (long index, char *ip)
811 {
812  if (index >= MAX_CONNS)
813  {
814  INFO ("connection array overflow");
815  return 0;
816  }
817  if (index < 0)
818  {
819  INFO ("don't even try...");
820  return 0;
821  }
822  memif_connection_t *c = &memif_connection[index];
823  if (c->conn == NULL)
824  {
825  INFO ("no connection at index %ld", index);
826  return 0;
827  }
828 
829  char *end;
830  char *ui;
831  uint8_t tmp[4];
832  ui = strtok (ip, ".");
833  if (ui == NULL)
834  goto error;
835  tmp[0] = strtol (ui, &end, 10);
836 
837  ui = strtok (NULL, ".");
838  if (ui == NULL)
839  goto error;
840  tmp[1] = strtol (ui, &end, 10);
841 
842  ui = strtok (NULL, ".");
843  if (ui == NULL)
844  goto error;
845  tmp[2] = strtol (ui, &end, 10);
846 
847  ui = strtok (NULL, ".");
848  if (ui == NULL)
849  goto error;
850  tmp[3] = strtol (ui, &end, 10);
851 
852  c->ip_addr[0] = tmp[0];
853  c->ip_addr[1] = tmp[1];
854  c->ip_addr[2] = tmp[2];
855  c->ip_addr[3] = tmp[3];
856 
857  INFO ("memif %ld ip address set to %u.%u.%u.%u",
858  index, c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
859 
860  return 0;
861 
862 error:
863  INFO ("invalid ip address");
864  return 0;
865 }
866 
867 int
868 icmpr_set_rx_mode (long index, long qid, char *mode)
869 {
870  if (index >= MAX_CONNS)
871  {
872  INFO ("connection array overflow");
873  return 0;
874  }
875  if (index < 0)
876  {
877  INFO ("don't even try...");
878  return 0;
879  }
880  memif_connection_t *c = &memif_connection[index];
881 
882  if (c->conn == NULL)
883  {
884  INFO ("no connection at index %ld", index);
885  return 0;
886  }
887 
888  if (strncmp (mode, "interrupt", 9) == 0)
889  {
891  }
892 
893  else if (strncmp (mode, "polling", 7) == 0)
894  {
896  }
897  else
898  INFO ("expected rx mode <interrupt|polling>");
899  return 0;
900 }
901 
902 void
904 {
905  int i;
906  for (i = 0; i < MAX_CONNS; i++)
907  {
908  memif_connection_t *c = &memif_connection[i];
909  if (c->conn == NULL)
910  continue;
911  printf ("===============================\n");
912  printf ("interface index: %d\n", c->index);
913  printf ("\trx: %lu\n", c->rx_counter);
914  printf ("\ttx: %lu\n", c->tx_counter);
915  printf ("\ttx_err: %lu\n", c->tx_err_counter);
916  printf ("\tts: %lus %luns\n", c->t_sec, c->t_nsec);
917  }
918 }
919 
920 void
922 {
923  int i;
924  for (i = 0; i < MAX_CONNS; i++)
925  {
926  memif_connection_t *c = &memif_connection[i];
927  if (c->conn == NULL)
928  continue;
929  c->t_sec = c->t_nsec = c->tx_err_counter = c->tx_counter =
930  c->rx_counter = 0;
931  }
932 }
933 
934 void *
935 icmpr_send_proc (void *data)
936 {
938  int index = d->index;
939  uint64_t count = d->packet_num;
940  memif_connection_t *c = &memif_connection[index];
941  if (c->conn == NULL)
942  {
943  INFO ("No connection at index %d. Thread exiting...\n", index);
944  pthread_exit (NULL);
945  }
946  uint16_t tx, i;
947  int err = MEMIF_ERR_SUCCESS;
948  uint32_t seq = 0;
949  struct timespec start, end;
950  memset (&start, 0, sizeof (start));
951  memset (&end, 0, sizeof (end));
952 
953  timespec_get (&start, TIME_UTC);
954  while (count)
955  {
956  i = 0;
957  err = memif_buffer_alloc (c->conn, 0, c->tx_bufs,
959  count ? count : MAX_MEMIF_BUFS, &tx, 128);
960  if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
961  {
962  INFO ("memif_buffer_alloc: %s Thread exiting...\n",
963  memif_strerror (err));
964  pthread_exit (NULL);
965  }
966  c->tx_buf_num += tx;
967 
968  while (tx)
969  {
970  while (tx > 2)
971  {
972  generate_packet ((void *) c->tx_bufs[i].data,
973  &c->tx_bufs[i].len, c->ip_addr,
974  d->ip_daddr, d->hw_daddr, seq++);
975  generate_packet ((void *) c->tx_bufs[i + 1].data,
976  &c->tx_bufs[i + 1].len, c->ip_addr,
977  d->ip_daddr, d->hw_daddr, seq++);
978  i += 2;
979  tx -= 2;
980  }
981  generate_packet ((void *) c->tx_bufs[i].data,
982  &c->tx_bufs[i].len, c->ip_addr,
983  d->ip_daddr, d->hw_daddr, seq++);
984  i++;
985  tx--;
986  }
987  err = memif_tx_burst (c->conn, 0, c->tx_bufs, c->tx_buf_num, &tx);
988  if (err != MEMIF_ERR_SUCCESS)
989  {
990  INFO ("memif_tx_burst: %s Thread exiting...\n",
991  memif_strerror (err));
992  pthread_exit (NULL);
993  }
994  c->tx_buf_num -= tx;
995  c->tx_counter += tx;
996  count -= tx;
997  }
998  timespec_get (&end, TIME_UTC);
999  printf ("\n\n");
1000  INFO ("Pakcet sequence finished!");
1001  INFO ("Seq len: %u", seq);
1002  uint64_t t1 = end.tv_sec - start.tv_sec;
1003  uint64_t t2;
1004  if (end.tv_nsec > start.tv_nsec)
1005  {
1006  t2 = end.tv_nsec - start.tv_nsec;
1007  }
1008  else
1009  {
1010  t2 = start.tv_nsec - end.tv_nsec;
1011  t1--;
1012  }
1013  c->t_sec = t1;
1014  c->t_nsec = t2;
1015  INFO ("Seq time: %lus %luns", t1, t2);
1016  double tmp = t1;
1017  tmp += t2 / 1e+9;
1018  tmp = seq / tmp;
1019  INFO ("Average pps: %f", tmp);
1020  INFO ("Thread exiting...");
1021  pthread_exit (NULL);
1022 }
1023 
1024 int
1025 icmpr_send (long index, long packet_num, char *hw, char *ip)
1026 {
1027  memif_connection_t *c = &memif_connection[index];
1028  char *end;
1029  char *ui;
1030  uint8_t tmp[6];
1031  if (c->conn == NULL)
1032  return -1;
1033  c->seq = 0;
1034  icmpr_thread_data_t *data = &icmpr_thread_data[index];
1035  data->index = index;
1036  data->packet_num = packet_num;
1037  INFO ("PN: %lu", data->packet_num);
1038  printf ("%s\n", ip);
1039  printf ("%s\n", hw);
1040 
1041  ui = strtok (ip, ".");
1042  if (ui == NULL)
1043  goto error;
1044  tmp[0] = strtol (ui, &end, 10);
1045 
1046  ui = strtok (NULL, ".");
1047  if (ui == NULL)
1048  goto error;
1049  tmp[1] = strtol (ui, &end, 10);
1050 
1051  ui = strtok (NULL, ".");
1052  if (ui == NULL)
1053  goto error;
1054  tmp[2] = strtol (ui, &end, 10);
1055 
1056  ui = strtok (NULL, ".");
1057  if (ui == NULL)
1058  goto error;
1059  tmp[3] = strtol (ui, &end, 10);
1060 
1061  data->ip_daddr[0] = tmp[0];
1062  data->ip_daddr[1] = tmp[1];
1063  data->ip_daddr[2] = tmp[2];
1064  data->ip_daddr[3] = tmp[3];
1065 
1066  ui = strtok (hw, ":");
1067  if (ui == NULL)
1068  goto error;
1069  tmp[0] = strtol (ui, &end, 16);
1070  ui = strtok (NULL, ":");
1071  if (ui == NULL)
1072  goto error;
1073  tmp[1] = strtol (ui, &end, 16);
1074  ui = strtok (NULL, ":");
1075  if (ui == NULL)
1076  goto error;
1077  tmp[2] = strtol (ui, &end, 16);
1078  ui = strtok (NULL, ":");
1079  if (ui == NULL)
1080  goto error;
1081  tmp[3] = strtol (ui, &end, 16);
1082  ui = strtok (NULL, ":");
1083  if (ui == NULL)
1084  goto error;
1085  tmp[4] = strtol (ui, &end, 16);
1086  ui = strtok (NULL, ":");
1087  if (ui == NULL)
1088  goto error;
1089  tmp[5] = strtol (ui, &end, 16);
1090 
1091  data->hw_daddr[0] = tmp[0];
1092  data->hw_daddr[1] = tmp[1];
1093  data->hw_daddr[2] = tmp[2];
1094  data->hw_daddr[3] = tmp[3];
1095  data->hw_daddr[4] = tmp[4];
1096  data->hw_daddr[5] = tmp[5];
1097 
1098  pthread_create (&thread[index], NULL, icmpr_send_proc, (void *) data);
1099  return 0;
1100 
1101 error:
1102  INFO ("Invalid input\n");
1103  return 0;
1104 }
1105 
1106 int
1108 {
1109  int i;
1110  char *in = (char *) malloc (256);
1111  char *ui = fgets (in, 256, stdin);
1112  char *end;
1113  long a;
1114  if (in[0] == '\n')
1115  goto done;
1116  ui = strtok (in, " ");
1117  if (strncmp (ui, "exit", 4) == 0)
1118  {
1119  free (in);
1120  icmpr_free ();
1121  exit (EXIT_SUCCESS);
1122  }
1123  else if (strncmp (ui, "help", 4) == 0)
1124  {
1125  print_help ();
1126  goto done;
1127  }
1128  else if (strncmp (ui, "conn", 4) == 0)
1129  {
1130  ui = strtok (NULL, " ");
1131  if (ui != NULL)
1132  a = strtol (ui, &end, 10);
1133  else
1134  {
1135  INFO ("expected id");
1136  goto done;
1137  }
1138  ui = strtok (NULL, " ");
1139  if (ui != NULL)
1140  icmpr_memif_create (a, strtol (ui, &end, 10), strtok (NULL, " "));
1141  else
1142  INFO ("expected mode <0|1>");
1143  goto done;
1144  }
1145  else if (strncmp (ui, "del", 3) == 0)
1146  {
1147  ui = strtok (NULL, " ");
1148  if (ui != NULL)
1149  icmpr_memif_delete (strtol (ui, &end, 10));
1150  else
1151  INFO ("expected id");
1152  goto done;
1153  }
1154  else if (strncmp (ui, "show", 4) == 0)
1155  {
1157  goto done;
1158  }
1159  else if (strncmp (ui, "ip-set", 6) == 0)
1160  {
1161  ui = strtok (NULL, " ");
1162  if (ui != NULL)
1163  icmpr_set_ip (strtol (ui, &end, 10), strtok (NULL, " "));
1164  else
1165  INFO ("expected id");
1166  goto done;
1167  }
1168  else if (strncmp (ui, "rx-mode", 7) == 0)
1169  {
1170  ui = strtok (NULL, " ");
1171  if (ui != NULL)
1172  a = strtol (ui, &end, 10);
1173  else
1174  {
1175  INFO ("expected id");
1176  goto done;
1177  }
1178  ui = strtok (NULL, " ");
1179  if (ui != NULL)
1180  icmpr_set_rx_mode (a, strtol (ui, &end, 10), strtok (NULL, " "));
1181  else
1182  INFO ("expected qid");
1183  goto done;
1184  }
1185  else if (strncmp (ui, "sh-count", 8) == 0)
1186  {
1188  }
1189  else if (strncmp (ui, "cl-count", 8) == 0)
1190  {
1192  }
1193  else if (strncmp (ui, "send", 4) == 0)
1194  {
1195  ui = strtok (NULL, " ");
1196  if (ui != NULL)
1197  a = strtol (ui, &end, 10);
1198  else
1199  {
1200  INFO ("expected id");
1201  goto done;
1202  }
1203  ui = strtok (NULL, " ");
1204  if (ui != NULL)
1205  icmpr_send (a, strtol (ui, &end, 10), strtok (NULL, " "),
1206  strtok (NULL, " "));
1207  else
1208  INFO ("expected count");
1209  goto done;
1210  }
1211  else
1212  {
1213  INFO ("unknown command: %s", ui);
1214  goto done;
1215  }
1216 
1217  return 0;
1218 done:
1219  free (in);
1220  return 0;
1221 }
1222 
1223 int
1224 poll_event (int timeout)
1225 {
1226  struct epoll_event evt, *e;
1227  int app_err = 0, memif_err = 0, en = 0;
1228  int tmp, nfd;
1229  uint32_t events = 0;
1230  struct timespec start, end;
1231  memset (&evt, 0, sizeof (evt));
1232  evt.events = EPOLLIN | EPOLLOUT;
1233  sigset_t sigset;
1234  sigemptyset (&sigset);
1235  en = epoll_pwait (epfd, &evt, 1, timeout, &sigset);
1236  /* id event polled */
1237  timespec_get (&start, TIME_UTC);
1238  if (en < 0)
1239  {
1240  DBG ("epoll_pwait: %s", strerror (errno));
1241  return -1;
1242  }
1243  if (en > 0)
1244  {
1245  /* this app does not use any other file descriptors than stds and memif control fds */
1246  if (evt.data.fd > 2)
1247  {
1248  /* event of memif control fd */
1249  /* convert epolle events to memif events */
1250  if (evt.events & EPOLLIN)
1251  events |= MEMIF_FD_EVENT_READ;
1252  if (evt.events & EPOLLOUT)
1253  events |= MEMIF_FD_EVENT_WRITE;
1254  if (evt.events & EPOLLERR)
1255  events |= MEMIF_FD_EVENT_ERROR;
1256  memif_err = memif_control_fd_handler (evt.data.fd, events);
1257  if (memif_err != MEMIF_ERR_SUCCESS)
1258  INFO ("memif_control_fd_handler: %s", memif_strerror (memif_err));
1259  }
1260  else if (evt.data.fd == 0)
1261  {
1262  app_err = user_input_handler ();
1263  }
1264  else
1265  {
1266  DBG ("unexpected event at memif_epfd. fd %d", evt.data.fd);
1267  }
1268  }
1269 
1270  timespec_get (&end, TIME_UTC);
1271  LOG ("interrupt: %ld", end.tv_nsec - start.tv_nsec);
1272 
1273  if ((app_err < 0) || (memif_err < 0))
1274  {
1275  if (app_err < 0)
1276  DBG ("user input handler error");
1277  if (memif_err < 0)
1278  DBG ("memif control fd handler error");
1279  return -1;
1280  }
1281 
1282  return 0;
1283 }
1284 
1285 int
1287 {
1288  epfd = epoll_create (1);
1289  add_epoll_fd (0, EPOLLIN);
1290 
1291 #ifdef LOG_FILE
1292  remove (LOG_FILE);
1293  enable_log = 0;
1294 
1295  out_fd = open (LOG_FILE, O_WRONLY | O_CREAT, S_IRWXO);
1296  if (out_fd < 0)
1297  INFO ("Error opening log file: %s", strerror (errno));
1298 #endif /* LOG_FILE */
1299 
1300  /* initialize memory interface */
1301  int err, i;
1302  /* if valid callback is passed as argument, fd event polling will be done by user
1303  all file descriptors and events will be passed to user in this callback */
1304  /* if callback is set to NULL libmemif will handle fd event polling */
1306  if (err != MEMIF_ERR_SUCCESS)
1307  {
1308  INFO ("memif_init: %s", memif_strerror (err));
1309  icmpr_free ();
1310  exit (-1);
1311  }
1312 
1313  for (i = 0; i < MAX_CONNS; i++)
1314  {
1315  memset (&memif_connection[i], 0, sizeof (memif_connection_t));
1316  ctx[i] = i;
1317  }
1318 
1319  print_help ();
1320 
1321  /* main loop */
1322  while (1)
1323  {
1324  if (poll_event (-1) < 0)
1325  {
1326  DBG ("poll_event error!");
1327  }
1328  }
1329 }
uint64_t rx_counter
Definition: main.c:129
void * icmpr_send_proc(void *data)
Definition: main.c:721
uint8_t ip_daddr[4]
Definition: main.c:137
#define IF_NAME
Definition: main.c:58
int icmpr_memif_delete()
Definition: main.c:193
void print_help()
Definition: main.c:204
int add_epoll_fd(int fd, uint32_t events)
Definition: main.c:302
a
Definition: bitmap.h:538
uint8_t * inst_name
Definition: libmemif.h:364
uint8_t * secret
Definition: libmemif.h:369
int on_disconnect(memif_conn_handle_t conn, void *private_ctx)
Definition: main.c:186
uint16_t seq
Definition: main.c:112
#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:448
uint8_t num_m2s_rings
Definition: libmemif.h:259
int del_epoll_fd(int fd)
Definition: main.c:344
#define NULL
Definition: clib.h:57
uint16_t buffer_size
Definition: libmemif.h:260
int on_interrupt1(memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
Definition: main.c:569
uint32_t interface_id
Definition: libmemif.h:264
int i
int out_fd
Definition: main.c:92
void icmpr_print_counters()
Definition: main.c:272
int icmpr_set_ip(long index, char *ip)
Definition: main.c:810
uint8_t * remote_inst_name
Definition: libmemif.h:366
int poll_event(int timeout)
Definition: main.c:978
#define ICMPR_HEADROOM
Definition: main.c:89
#define LIBMEMIF_VERSION
Libmemif version.
Definition: libmemif.h:26
int memif_refill_queue(memif_conn_handle_t conn, uint16_t qid, uint16_t count, uint16_t headroom)
Memif refill ring.
Definition: main.c:1780
int on_connect(memif_conn_handle_t conn, void *private_ctx)
Definition: main.c:177
uint8_t num_s2m_rings
Definition: libmemif.h:258
memset(h->entries, 0, sizeof(h->entries[0])*entries)
uint32_t len
Definition: libmemif.h:287
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:1986
int icmpr_set_rx_mode(long index, long qid, char *mode)
Definition: main.c:868
memif_interface_mode_t mode
Definition: libmemif.h:266
uint8_t mode
Definition: libmemif.h:371
uint8_t link_up_down
Definition: libmemif.h:381
char * memif_strerror(int err_code)
Memif strerror.
Definition: main.c:159
int icmpr_memif_create(int is_master)
Definition: main.c:337
memif_conn_handle_t conn
Definition: main.c:76
pthread_t thread[MAX_CONNS]
Definition: main.c:142
#define TIME_UTC
Definition: main.c:51
#define APP_NAME
Definition: main.c:57
#define MAX_MEMIF_BUFS
Definition: main.c:86
uint8_t ip_addr[4]
Definition: main.c:90
uint16_t rx_buf_num
Definition: main.c:88
#define MAX_CONNS
Definition: main.c:87
uint8_t interface_name[32]
Definition: libmemif.h:265
uint8_t * error
Definition: libmemif.h:380
void * data
Definition: libmemif.h:293
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:208
uint16_t buffer_size
Definition: libmemif.h:323
int user_input_handler()
Definition: main.c:897
uint8_t * socket_filename
Definition: libmemif.h:372
#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:611
long ctx[MAX_CONNS]
Definition: main.c:144
struct memif_connection memif_connection_t
uint8_t is_master
Definition: libmemif.h:262
uint8_t rx_queues_num
Definition: libmemif.h:375
int memif_init(memif_control_fd_update_t *on_control_fd_update, char *app_name, memif_alloc_t *memif_alloc, memif_realloc_t *memif_realloc, memif_free_t *memif_free)
Memif initialization.
Definition: main.c:455
#define DBG(...)
Definition: main.c:75
uint64_t tx_counter
Definition: main.c:129
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:1834
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:1653
memif_queue_details_t * rx_queues
Definition: libmemif.h:377
uint8_t role
Definition: libmemif.h:370
#define INFO(...)
Definition: main.c:79
uint8_t enable_log
Definition: main.c:93
int memif_cleanup()
Memif cleanup.
Definition: main.c:2167
#define LOG(...)
Definition: main.c:76
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:629
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:314
uint64_t t_sec
Definition: main.c:130
uint8_t tx_queues_num
Definition: libmemif.h:376
size_t count
Definition: vapi.c:46
uint16_t index
Definition: main.c:135
void * memif_conn_handle_t
Memif connection handle pointer of type void, pointing to internal structure.
Definition: libmemif.h:101
uint64_t packet_num
Definition: main.c:136
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:893
int mod_epoll_fd(int fd, uint32_t events)
Definition: main.c:323
int control_fd_update(int fd, uint8_t events)
Definition: main.c:378
uint8_t log2_ring_size
Definition: libmemif.h:261
void icmpr_reset_counters()
Definition: main.c:289
uint64_t tx_err_counter
Definition: main.c:129
int epfd
Definition: main.c:94
uint32_t id
Definition: libmemif.h:368
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:1901
uint64_t t_nsec
Definition: main.c:130
int memif_delete(memif_conn_handle_t *conn)
Memif delete.
Definition: main.c:1230
static void print_memif_details()
Definition: main.c:132
#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:96
int icmpr_send(long index, long packet_num, char *hw, char *ip)
Definition: main.c:818
memif_queue_details_t * tx_queues
Definition: libmemif.h:378
uint8_t * if_name
Definition: libmemif.h:363
uint8_t hw_daddr[6]
Definition: main.c:138
uint16_t index
Definition: main.c:74
Memif buffer.
Definition: libmemif.h:283
#define MEMIF_FD_EVENT_WRITE
Definition: libmemif.h:89
uint16_t memif_get_version()
Memif get version.
Definition: main.c:176
memif_buffer_t * tx_bufs
Definition: main.c:80
Memif connection arguments.
Definition: libmemif.h:253
Memif details.
Definition: libmemif.h:361
uint8_t * remote_if_name
Definition: libmemif.h:365
memif_buffer_t * rx_bufs
Definition: main.c:85