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614c4892 | 1 | /* |
f72dff1a | 2 | * Copyright (c) 2010, 2011, 2012, 2013, 2015, 2016 Nicira, Inc. |
614c4892 BP |
3 | * |
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 | #include <config.h> | |
18 | ||
19 | #include "dummy.h" | |
20 | ||
21 | #include <errno.h> | |
f8cf6502 | 22 | #include <unistd.h> |
614c4892 | 23 | |
e14deea0 | 24 | #include "dp-packet.h" |
df1e5a3b | 25 | #include "dpif-netdev.h" |
fbac791a | 26 | #include "flow.h" |
614c4892 | 27 | #include "netdev-provider.h" |
c060c4cf | 28 | #include "netdev-vport.h" |
fbac791a | 29 | #include "odp-util.h" |
25d436fb BW |
30 | #include "openvswitch/dynamic-string.h" |
31 | #include "openvswitch/list.h" | |
32 | #include "openvswitch/ofp-print.h" | |
64c96779 | 33 | #include "openvswitch/ofpbuf.h" |
25d436fb | 34 | #include "openvswitch/vlog.h" |
5617ae6a | 35 | #include "ovs-atomic.h" |
614c4892 | 36 | #include "packets.h" |
55d87b06 | 37 | #include "pcap-file.h" |
fbac791a | 38 | #include "poll-loop.h" |
ee89ea7b | 39 | #include "openvswitch/shash.h" |
0cbfe35d | 40 | #include "sset.h" |
eab5611a BP |
41 | #include "stream.h" |
42 | #include "unaligned.h" | |
55d87b06 | 43 | #include "timeval.h" |
fbac791a | 44 | #include "unixctl.h" |
631486bd | 45 | #include "reconnect.h" |
614c4892 BP |
46 | |
47 | VLOG_DEFINE_THIS_MODULE(netdev_dummy); | |
48 | ||
631486bd AZ |
49 | struct reconnect; |
50 | ||
51 | struct dummy_packet_stream { | |
eab5611a | 52 | struct stream *stream; |
cf62fa4c | 53 | struct dp_packet rxbuf; |
ca6ba700 | 54 | struct ovs_list txq; |
eab5611a BP |
55 | }; |
56 | ||
631486bd AZ |
57 | enum dummy_packet_conn_type { |
58 | NONE, /* No connection is configured. */ | |
59 | PASSIVE, /* Listener. */ | |
60 | ACTIVE /* Connect to listener. */ | |
61 | }; | |
62 | ||
7d7fffe8 AZ |
63 | enum dummy_netdev_conn_state { |
64 | CONN_STATE_CONNECTED, /* Listener connected. */ | |
65 | CONN_STATE_NOT_CONNECTED, /* Listener not connected. */ | |
66 | CONN_STATE_UNKNOWN, /* No relavent information. */ | |
67 | }; | |
68 | ||
631486bd AZ |
69 | struct dummy_packet_pconn { |
70 | struct pstream *pstream; | |
7778360b | 71 | struct dummy_packet_stream **streams; |
631486bd AZ |
72 | size_t n_streams; |
73 | }; | |
74 | ||
75 | struct dummy_packet_rconn { | |
76 | struct dummy_packet_stream *rstream; | |
77 | struct reconnect *reconnect; | |
78 | }; | |
79 | ||
80 | struct dummy_packet_conn { | |
81 | enum dummy_packet_conn_type type; | |
82 | union { | |
83 | struct dummy_packet_pconn pconn; | |
84 | struct dummy_packet_rconn rconn; | |
85 | } u; | |
86 | }; | |
87 | ||
8613db65 DDP |
88 | struct pkt_list_node { |
89 | struct dp_packet *pkt; | |
90 | struct ovs_list list_node; | |
91 | }; | |
92 | ||
5e1de67f BP |
93 | /* Protects 'dummy_list'. */ |
94 | static struct ovs_mutex dummy_list_mutex = OVS_MUTEX_INITIALIZER; | |
95 | ||
96 | /* Contains all 'struct dummy_dev's. */ | |
ca6ba700 | 97 | static struct ovs_list dummy_list OVS_GUARDED_BY(dummy_list_mutex) |
55951e15 | 98 | = OVS_LIST_INITIALIZER(&dummy_list); |
5e1de67f | 99 | |
b5d57fc8 BP |
100 | struct netdev_dummy { |
101 | struct netdev up; | |
86383816 | 102 | |
5e1de67f | 103 | /* In dummy_list. */ |
ca6ba700 | 104 | struct ovs_list list_node OVS_GUARDED_BY(dummy_list_mutex); |
5e1de67f | 105 | |
86383816 | 106 | /* Protects all members below. */ |
5e1de67f | 107 | struct ovs_mutex mutex OVS_ACQ_AFTER(dummy_list_mutex); |
86383816 | 108 | |
74ff3298 | 109 | struct eth_addr hwaddr OVS_GUARDED; |
36e2140d BP |
110 | int mtu OVS_GUARDED; |
111 | struct netdev_stats stats OVS_GUARDED; | |
112 | enum netdev_flags flags OVS_GUARDED; | |
36e2140d | 113 | int ifindex OVS_GUARDED; |
d537e73a | 114 | int numa_id OVS_GUARDED; |
36e2140d | 115 | |
631486bd | 116 | struct dummy_packet_conn conn OVS_GUARDED; |
36e2140d | 117 | |
f7791740 | 118 | FILE *tx_pcap, *rxq_pcap OVS_GUARDED; |
55d87b06 | 119 | |
a36de779 | 120 | struct in_addr address, netmask; |
a8704b50 | 121 | struct in6_addr ipv6, ipv6_mask; |
ca6ba700 | 122 | struct ovs_list rxes OVS_GUARDED; /* List of child "netdev_rxq_dummy"s. */ |
9a81a637 IM |
123 | |
124 | /* The following properties are for dummy-pmd and they cannot be changed | |
125 | * when a device is running, so we remember the request and update them | |
126 | * next time netdev_dummy_reconfigure() is called. */ | |
d537e73a DDP |
127 | int requested_n_txq OVS_GUARDED; |
128 | int requested_n_rxq OVS_GUARDED; | |
129 | int requested_numa_id OVS_GUARDED; | |
614c4892 BP |
130 | }; |
131 | ||
e34cfdd9 BP |
132 | /* Max 'recv_queue_len' in struct netdev_dummy. */ |
133 | #define NETDEV_DUMMY_MAX_QUEUE 100 | |
134 | ||
f7791740 PS |
135 | struct netdev_rxq_dummy { |
136 | struct netdev_rxq up; | |
ca6ba700 TG |
137 | struct ovs_list node; /* In netdev_dummy's "rxes" list. */ |
138 | struct ovs_list recv_queue; | |
417e7e66 | 139 | int recv_queue_len; /* ovs_list_size(&recv_queue). */ |
98045eda | 140 | struct seq *seq; /* Reports newly queued packets. */ |
614c4892 BP |
141 | }; |
142 | ||
95d4ec33 | 143 | static unixctl_cb_func netdev_dummy_set_admin_state; |
9dc63482 | 144 | static int netdev_dummy_construct(struct netdev *); |
9a81a637 IM |
145 | static void netdev_dummy_queue_packet(struct netdev_dummy *, |
146 | struct dp_packet *, int); | |
eab5611a | 147 | |
631486bd | 148 | static void dummy_packet_stream_close(struct dummy_packet_stream *); |
614c4892 | 149 | |
8613db65 DDP |
150 | static void pkt_list_delete(struct ovs_list *); |
151 | ||
614c4892 BP |
152 | static bool |
153 | is_dummy_class(const struct netdev_class *class) | |
154 | { | |
9dc63482 | 155 | return class->construct == netdev_dummy_construct; |
614c4892 BP |
156 | } |
157 | ||
614c4892 BP |
158 | static struct netdev_dummy * |
159 | netdev_dummy_cast(const struct netdev *netdev) | |
160 | { | |
b5d57fc8 | 161 | ovs_assert(is_dummy_class(netdev_get_class(netdev))); |
180c6d0b | 162 | return CONTAINER_OF(netdev, struct netdev_dummy, up); |
614c4892 BP |
163 | } |
164 | ||
f7791740 PS |
165 | static struct netdev_rxq_dummy * |
166 | netdev_rxq_dummy_cast(const struct netdev_rxq *rx) | |
796223f5 | 167 | { |
9dc63482 | 168 | ovs_assert(is_dummy_class(netdev_get_class(rx->netdev))); |
f7791740 | 169 | return CONTAINER_OF(rx, struct netdev_rxq_dummy, up); |
796223f5 BP |
170 | } |
171 | ||
eab5611a | 172 | static void |
631486bd | 173 | dummy_packet_stream_init(struct dummy_packet_stream *s, struct stream *stream) |
eab5611a | 174 | { |
631486bd AZ |
175 | int rxbuf_size = stream ? 2048 : 0; |
176 | s->stream = stream; | |
cf62fa4c | 177 | dp_packet_init(&s->rxbuf, rxbuf_size); |
417e7e66 | 178 | ovs_list_init(&s->txq); |
631486bd | 179 | } |
eab5611a | 180 | |
631486bd AZ |
181 | static struct dummy_packet_stream * |
182 | dummy_packet_stream_create(struct stream *stream) | |
183 | { | |
184 | struct dummy_packet_stream *s; | |
eab5611a | 185 | |
631486bd AZ |
186 | s = xzalloc(sizeof *s); |
187 | dummy_packet_stream_init(s, stream); | |
86383816 | 188 | |
631486bd AZ |
189 | return s; |
190 | } | |
eab5611a | 191 | |
631486bd AZ |
192 | static void |
193 | dummy_packet_stream_wait(struct dummy_packet_stream *s) | |
194 | { | |
195 | stream_run_wait(s->stream); | |
417e7e66 | 196 | if (!ovs_list_is_empty(&s->txq)) { |
631486bd AZ |
197 | stream_send_wait(s->stream); |
198 | } | |
199 | stream_recv_wait(s->stream); | |
200 | } | |
eab5611a | 201 | |
631486bd AZ |
202 | static void |
203 | dummy_packet_stream_send(struct dummy_packet_stream *s, const void *buffer, size_t size) | |
204 | { | |
417e7e66 | 205 | if (ovs_list_size(&s->txq) < NETDEV_DUMMY_MAX_QUEUE) { |
cf62fa4c | 206 | struct dp_packet *b; |
8613db65 | 207 | struct pkt_list_node *node; |
eab5611a | 208 | |
cf62fa4c PS |
209 | b = dp_packet_clone_data_with_headroom(buffer, size, 2); |
210 | put_unaligned_be16(dp_packet_push_uninit(b, 2), htons(size)); | |
8613db65 DDP |
211 | |
212 | node = xmalloc(sizeof *node); | |
213 | node->pkt = b; | |
417e7e66 | 214 | ovs_list_push_back(&s->txq, &node->list_node); |
631486bd AZ |
215 | } |
216 | } | |
217 | ||
218 | static int | |
219 | dummy_packet_stream_run(struct netdev_dummy *dev, struct dummy_packet_stream *s) | |
220 | { | |
221 | int error = 0; | |
222 | size_t n; | |
223 | ||
224 | stream_run(s->stream); | |
225 | ||
417e7e66 | 226 | if (!ovs_list_is_empty(&s->txq)) { |
8613db65 | 227 | struct pkt_list_node *txbuf_node; |
cf62fa4c | 228 | struct dp_packet *txbuf; |
631486bd AZ |
229 | int retval; |
230 | ||
417e7e66 | 231 | ASSIGN_CONTAINER(txbuf_node, ovs_list_front(&s->txq), list_node); |
8613db65 | 232 | txbuf = txbuf_node->pkt; |
cf62fa4c | 233 | retval = stream_send(s->stream, dp_packet_data(txbuf), dp_packet_size(txbuf)); |
c0c4982f | 234 | |
631486bd | 235 | if (retval > 0) { |
cf62fa4c PS |
236 | dp_packet_pull(txbuf, retval); |
237 | if (!dp_packet_size(txbuf)) { | |
417e7e66 | 238 | ovs_list_remove(&txbuf_node->list_node); |
8613db65 | 239 | free(txbuf_node); |
cf62fa4c | 240 | dp_packet_delete(txbuf); |
eab5611a | 241 | } |
631486bd AZ |
242 | } else if (retval != -EAGAIN) { |
243 | error = -retval; | |
eab5611a | 244 | } |
631486bd | 245 | } |
86f1d032 | 246 | |
631486bd | 247 | if (!error) { |
cf62fa4c PS |
248 | if (dp_packet_size(&s->rxbuf) < 2) { |
249 | n = 2 - dp_packet_size(&s->rxbuf); | |
631486bd AZ |
250 | } else { |
251 | uint16_t frame_len; | |
252 | ||
cf62fa4c | 253 | frame_len = ntohs(get_unaligned_be16(dp_packet_data(&s->rxbuf))); |
631486bd AZ |
254 | if (frame_len < ETH_HEADER_LEN) { |
255 | error = EPROTO; | |
256 | n = 0; | |
257 | } else { | |
cf62fa4c | 258 | n = (2 + frame_len) - dp_packet_size(&s->rxbuf); |
631486bd AZ |
259 | } |
260 | } | |
eab5611a | 261 | } |
631486bd AZ |
262 | if (!error) { |
263 | int retval; | |
264 | ||
cf62fa4c PS |
265 | dp_packet_prealloc_tailroom(&s->rxbuf, n); |
266 | retval = stream_recv(s->stream, dp_packet_tail(&s->rxbuf), n); | |
c0c4982f | 267 | |
631486bd | 268 | if (retval > 0) { |
cf62fa4c PS |
269 | dp_packet_set_size(&s->rxbuf, dp_packet_size(&s->rxbuf) + retval); |
270 | if (retval == n && dp_packet_size(&s->rxbuf) > 2) { | |
271 | dp_packet_pull(&s->rxbuf, 2); | |
631486bd | 272 | netdev_dummy_queue_packet(dev, |
9a81a637 | 273 | dp_packet_clone(&s->rxbuf), 0); |
cf62fa4c | 274 | dp_packet_clear(&s->rxbuf); |
631486bd AZ |
275 | } |
276 | } else if (retval != -EAGAIN) { | |
277 | error = (retval < 0 ? -retval | |
cf62fa4c | 278 | : dp_packet_size(&s->rxbuf) ? EPROTO |
631486bd AZ |
279 | : EOF); |
280 | } | |
281 | } | |
282 | ||
283 | return error; | |
eab5611a BP |
284 | } |
285 | ||
286 | static void | |
631486bd | 287 | dummy_packet_stream_close(struct dummy_packet_stream *s) |
eab5611a BP |
288 | { |
289 | stream_close(s->stream); | |
cf62fa4c | 290 | dp_packet_uninit(&s->rxbuf); |
8613db65 | 291 | pkt_list_delete(&s->txq); |
eab5611a BP |
292 | } |
293 | ||
294 | static void | |
631486bd | 295 | dummy_packet_conn_init(struct dummy_packet_conn *conn) |
eab5611a | 296 | { |
631486bd AZ |
297 | memset(conn, 0, sizeof *conn); |
298 | conn->type = NONE; | |
299 | } | |
eab5611a | 300 | |
631486bd AZ |
301 | static void |
302 | dummy_packet_conn_get_config(struct dummy_packet_conn *conn, struct smap *args) | |
303 | { | |
eab5611a | 304 | |
631486bd AZ |
305 | switch (conn->type) { |
306 | case PASSIVE: | |
307 | smap_add(args, "pstream", pstream_get_name(conn->u.pconn.pstream)); | |
308 | break; | |
309 | ||
310 | case ACTIVE: | |
311 | smap_add(args, "stream", stream_get_name(conn->u.rconn.rstream->stream)); | |
312 | break; | |
313 | ||
314 | case NONE: | |
315 | default: | |
316 | break; | |
317 | } | |
318 | } | |
319 | ||
320 | static void | |
321 | dummy_packet_conn_close(struct dummy_packet_conn *conn) | |
322 | { | |
323 | int i; | |
324 | struct dummy_packet_pconn *pconn = &conn->u.pconn; | |
325 | struct dummy_packet_rconn *rconn = &conn->u.rconn; | |
326 | ||
327 | switch (conn->type) { | |
328 | case PASSIVE: | |
329 | pstream_close(pconn->pstream); | |
330 | for (i = 0; i < pconn->n_streams; i++) { | |
7778360b LR |
331 | dummy_packet_stream_close(pconn->streams[i]); |
332 | free(pconn->streams[i]); | |
631486bd AZ |
333 | } |
334 | free(pconn->streams); | |
335 | pconn->pstream = NULL; | |
336 | pconn->streams = NULL; | |
337 | break; | |
338 | ||
339 | case ACTIVE: | |
340 | dummy_packet_stream_close(rconn->rstream); | |
341 | free(rconn->rstream); | |
342 | rconn->rstream = NULL; | |
343 | reconnect_destroy(rconn->reconnect); | |
344 | rconn->reconnect = NULL; | |
345 | break; | |
346 | ||
347 | case NONE: | |
348 | default: | |
349 | break; | |
350 | } | |
351 | ||
352 | conn->type = NONE; | |
353 | memset(conn, 0, sizeof *conn); | |
354 | } | |
355 | ||
356 | static void | |
357 | dummy_packet_conn_set_config(struct dummy_packet_conn *conn, | |
358 | const struct smap *args) | |
359 | { | |
360 | const char *pstream = smap_get(args, "pstream"); | |
361 | const char *stream = smap_get(args, "stream"); | |
362 | ||
363 | if (pstream && stream) { | |
364 | VLOG_WARN("Open failed: both %s and %s are configured", | |
365 | pstream, stream); | |
366 | return; | |
367 | } | |
368 | ||
369 | switch (conn->type) { | |
370 | case PASSIVE: | |
966904d2 BP |
371 | if (pstream && |
372 | !strcmp(pstream_get_name(conn->u.pconn.pstream), pstream)) { | |
631486bd AZ |
373 | return; |
374 | } | |
375 | dummy_packet_conn_close(conn); | |
376 | break; | |
377 | case ACTIVE: | |
966904d2 BP |
378 | if (stream && |
379 | !strcmp(stream_get_name(conn->u.rconn.rstream->stream), stream)) { | |
631486bd AZ |
380 | return; |
381 | } | |
382 | dummy_packet_conn_close(conn); | |
383 | break; | |
384 | case NONE: | |
385 | default: | |
386 | break; | |
387 | } | |
388 | ||
389 | if (pstream) { | |
390 | int error; | |
391 | ||
392 | error = pstream_open(pstream, &conn->u.pconn.pstream, DSCP_DEFAULT); | |
393 | if (error) { | |
394 | VLOG_WARN("%s: open failed (%s)", pstream, ovs_strerror(error)); | |
395 | } else { | |
396 | conn->type = PASSIVE; | |
397 | } | |
398 | } | |
399 | ||
400 | if (stream) { | |
401 | int error; | |
402 | struct stream *active_stream; | |
ea53e3a8 | 403 | struct reconnect *reconnect; |
631486bd AZ |
404 | |
405 | reconnect = reconnect_create(time_msec()); | |
406 | reconnect_set_name(reconnect, stream); | |
407 | reconnect_set_passive(reconnect, false, time_msec()); | |
408 | reconnect_enable(reconnect, time_msec()); | |
fc24d64d | 409 | reconnect_set_backoff(reconnect, 100, INT_MAX); |
13af13b3 | 410 | reconnect_set_probe_interval(reconnect, 0); |
631486bd | 411 | conn->u.rconn.reconnect = reconnect; |
c0c4982f | 412 | conn->type = ACTIVE; |
631486bd AZ |
413 | |
414 | error = stream_open(stream, &active_stream, DSCP_DEFAULT); | |
415 | conn->u.rconn.rstream = dummy_packet_stream_create(active_stream); | |
416 | ||
417 | switch (error) { | |
418 | case 0: | |
c0c4982f | 419 | reconnect_connected(reconnect, time_msec()); |
631486bd AZ |
420 | break; |
421 | ||
422 | case EAGAIN: | |
c0c4982f | 423 | reconnect_connecting(reconnect, time_msec()); |
631486bd AZ |
424 | break; |
425 | ||
426 | default: | |
c0c4982f | 427 | reconnect_connect_failed(reconnect, time_msec(), error); |
631486bd | 428 | stream_close(active_stream); |
c0c4982f | 429 | conn->u.rconn.rstream->stream = NULL; |
631486bd AZ |
430 | break; |
431 | } | |
432 | } | |
433 | } | |
434 | ||
435 | static void | |
436 | dummy_pconn_run(struct netdev_dummy *dev) | |
437 | OVS_REQUIRES(dev->mutex) | |
438 | { | |
439 | struct stream *new_stream; | |
440 | struct dummy_packet_pconn *pconn = &dev->conn.u.pconn; | |
441 | int error; | |
442 | size_t i; | |
443 | ||
444 | error = pstream_accept(pconn->pstream, &new_stream); | |
445 | if (!error) { | |
446 | struct dummy_packet_stream *s; | |
447 | ||
448 | pconn->streams = xrealloc(pconn->streams, | |
449 | ((pconn->n_streams + 1) | |
7778360b LR |
450 | * sizeof s)); |
451 | s = xmalloc(sizeof *s); | |
452 | pconn->streams[pconn->n_streams++] = s; | |
631486bd AZ |
453 | dummy_packet_stream_init(s, new_stream); |
454 | } else if (error != EAGAIN) { | |
455 | VLOG_WARN("%s: accept failed (%s)", | |
456 | pstream_get_name(pconn->pstream), ovs_strerror(error)); | |
457 | pstream_close(pconn->pstream); | |
458 | pconn->pstream = NULL; | |
459 | dev->conn.type = NONE; | |
460 | } | |
461 | ||
7778360b LR |
462 | for (i = 0; i < pconn->n_streams; ) { |
463 | struct dummy_packet_stream *s = pconn->streams[i]; | |
631486bd AZ |
464 | |
465 | error = dummy_packet_stream_run(dev, s); | |
466 | if (error) { | |
467 | VLOG_DBG("%s: closing connection (%s)", | |
468 | stream_get_name(s->stream), | |
469 | ovs_retval_to_string(error)); | |
470 | dummy_packet_stream_close(s); | |
7778360b | 471 | free(s); |
631486bd | 472 | pconn->streams[i] = pconn->streams[--pconn->n_streams]; |
7778360b LR |
473 | } else { |
474 | i++; | |
eab5611a | 475 | } |
631486bd AZ |
476 | } |
477 | } | |
eab5611a | 478 | |
631486bd AZ |
479 | static void |
480 | dummy_rconn_run(struct netdev_dummy *dev) | |
481 | OVS_REQUIRES(dev->mutex) | |
482 | { | |
483 | struct dummy_packet_rconn *rconn = &dev->conn.u.rconn; | |
484 | ||
485 | switch (reconnect_run(rconn->reconnect, time_msec())) { | |
486 | case RECONNECT_CONNECT: | |
487 | { | |
c0c4982f AZ |
488 | int error; |
489 | ||
490 | if (rconn->rstream->stream) { | |
491 | error = stream_connect(rconn->rstream->stream); | |
492 | } else { | |
493 | error = stream_open(reconnect_get_name(rconn->reconnect), | |
494 | &rconn->rstream->stream, DSCP_DEFAULT); | |
495 | } | |
631486bd | 496 | |
c0c4982f AZ |
497 | switch (error) { |
498 | case 0: | |
631486bd | 499 | reconnect_connected(rconn->reconnect, time_msec()); |
631486bd AZ |
500 | break; |
501 | ||
502 | case EAGAIN: | |
503 | reconnect_connecting(rconn->reconnect, time_msec()); | |
c0c4982f | 504 | break; |
631486bd AZ |
505 | |
506 | default: | |
c0c4982f | 507 | reconnect_connect_failed(rconn->reconnect, time_msec(), error); |
631486bd | 508 | stream_close(rconn->rstream->stream); |
c0c4982f AZ |
509 | rconn->rstream->stream = NULL; |
510 | break; | |
eab5611a | 511 | } |
eab5611a | 512 | } |
631486bd AZ |
513 | break; |
514 | ||
515 | case RECONNECT_DISCONNECT: | |
516 | case RECONNECT_PROBE: | |
517 | default: | |
518 | break; | |
519 | } | |
520 | ||
521 | if (reconnect_is_connected(rconn->reconnect)) { | |
522 | int err; | |
523 | ||
524 | err = dummy_packet_stream_run(dev, rconn->rstream); | |
525 | ||
526 | if (err) { | |
527 | reconnect_disconnected(rconn->reconnect, time_msec(), err); | |
528 | stream_close(rconn->rstream->stream); | |
c0c4982f | 529 | rconn->rstream->stream = NULL; |
631486bd AZ |
530 | } |
531 | } | |
532 | } | |
533 | ||
534 | static void | |
535 | dummy_packet_conn_run(struct netdev_dummy *dev) | |
536 | OVS_REQUIRES(dev->mutex) | |
537 | { | |
538 | switch (dev->conn.type) { | |
539 | case PASSIVE: | |
540 | dummy_pconn_run(dev); | |
541 | break; | |
542 | ||
543 | case ACTIVE: | |
544 | dummy_rconn_run(dev); | |
545 | break; | |
546 | ||
547 | case NONE: | |
548 | default: | |
549 | break; | |
550 | } | |
551 | } | |
552 | ||
553 | static void | |
554 | dummy_packet_conn_wait(struct dummy_packet_conn *conn) | |
555 | { | |
556 | int i; | |
557 | switch (conn->type) { | |
558 | case PASSIVE: | |
559 | pstream_wait(conn->u.pconn.pstream); | |
560 | for (i = 0; i < conn->u.pconn.n_streams; i++) { | |
7778360b | 561 | struct dummy_packet_stream *s = conn->u.pconn.streams[i]; |
631486bd AZ |
562 | dummy_packet_stream_wait(s); |
563 | } | |
564 | break; | |
565 | case ACTIVE: | |
c0c4982f AZ |
566 | if (reconnect_is_connected(conn->u.rconn.reconnect)) { |
567 | dummy_packet_stream_wait(conn->u.rconn.rstream); | |
568 | } | |
631486bd AZ |
569 | break; |
570 | ||
571 | case NONE: | |
572 | default: | |
573 | break; | |
574 | } | |
575 | } | |
576 | ||
577 | static void | |
578 | dummy_packet_conn_send(struct dummy_packet_conn *conn, | |
579 | const void *buffer, size_t size) | |
580 | { | |
581 | int i; | |
582 | ||
583 | switch (conn->type) { | |
584 | case PASSIVE: | |
585 | for (i = 0; i < conn->u.pconn.n_streams; i++) { | |
7778360b | 586 | struct dummy_packet_stream *s = conn->u.pconn.streams[i]; |
631486bd AZ |
587 | |
588 | dummy_packet_stream_send(s, buffer, size); | |
589 | pstream_wait(conn->u.pconn.pstream); | |
590 | } | |
591 | break; | |
592 | ||
593 | case ACTIVE: | |
c0c4982f AZ |
594 | if (reconnect_is_connected(conn->u.rconn.reconnect)) { |
595 | dummy_packet_stream_send(conn->u.rconn.rstream, buffer, size); | |
596 | dummy_packet_stream_wait(conn->u.rconn.rstream); | |
597 | } | |
631486bd AZ |
598 | break; |
599 | ||
600 | case NONE: | |
601 | default: | |
602 | break; | |
603 | } | |
604 | } | |
605 | ||
7d7fffe8 AZ |
606 | static enum dummy_netdev_conn_state |
607 | dummy_netdev_get_conn_state(struct dummy_packet_conn *conn) | |
608 | { | |
609 | enum dummy_netdev_conn_state state; | |
610 | ||
611 | if (conn->type == ACTIVE) { | |
612 | if (reconnect_is_connected(conn->u.rconn.reconnect)) { | |
613 | state = CONN_STATE_CONNECTED; | |
614 | } else { | |
615 | state = CONN_STATE_NOT_CONNECTED; | |
616 | } | |
617 | } else { | |
618 | state = CONN_STATE_UNKNOWN; | |
619 | } | |
620 | ||
621 | return state; | |
622 | } | |
623 | ||
631486bd | 624 | static void |
e98d0cb3 | 625 | netdev_dummy_run(const struct netdev_class *netdev_class) |
631486bd AZ |
626 | { |
627 | struct netdev_dummy *dev; | |
628 | ||
629 | ovs_mutex_lock(&dummy_list_mutex); | |
630 | LIST_FOR_EACH (dev, list_node, &dummy_list) { | |
e98d0cb3 DDP |
631 | if (netdev_get_class(&dev->up) != netdev_class) { |
632 | continue; | |
633 | } | |
631486bd AZ |
634 | ovs_mutex_lock(&dev->mutex); |
635 | dummy_packet_conn_run(dev); | |
636 | ovs_mutex_unlock(&dev->mutex); | |
637 | } | |
638 | ovs_mutex_unlock(&dummy_list_mutex); | |
639 | } | |
640 | ||
641 | static void | |
e98d0cb3 | 642 | netdev_dummy_wait(const struct netdev_class *netdev_class) |
631486bd AZ |
643 | { |
644 | struct netdev_dummy *dev; | |
645 | ||
646 | ovs_mutex_lock(&dummy_list_mutex); | |
647 | LIST_FOR_EACH (dev, list_node, &dummy_list) { | |
e98d0cb3 DDP |
648 | if (netdev_get_class(&dev->up) != netdev_class) { |
649 | continue; | |
650 | } | |
631486bd AZ |
651 | ovs_mutex_lock(&dev->mutex); |
652 | dummy_packet_conn_wait(&dev->conn); | |
86383816 | 653 | ovs_mutex_unlock(&dev->mutex); |
eab5611a | 654 | } |
5e1de67f | 655 | ovs_mutex_unlock(&dummy_list_mutex); |
eab5611a BP |
656 | } |
657 | ||
9dc63482 BP |
658 | static struct netdev * |
659 | netdev_dummy_alloc(void) | |
660 | { | |
661 | struct netdev_dummy *netdev = xzalloc(sizeof *netdev); | |
662 | return &netdev->up; | |
663 | } | |
664 | ||
614c4892 | 665 | static int |
9dc63482 | 666 | netdev_dummy_construct(struct netdev *netdev_) |
614c4892 | 667 | { |
97e5b2e5 | 668 | static atomic_count next_n = ATOMIC_COUNT_INIT(0xaa550000); |
9dc63482 | 669 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); |
01cdb3a1 BP |
670 | unsigned int n; |
671 | ||
97e5b2e5 | 672 | n = atomic_count_inc(&next_n); |
86383816 | 673 | |
834d6caf | 674 | ovs_mutex_init(&netdev->mutex); |
36e2140d | 675 | ovs_mutex_lock(&netdev->mutex); |
74ff3298 JR |
676 | netdev->hwaddr.ea[0] = 0xaa; |
677 | netdev->hwaddr.ea[1] = 0x55; | |
678 | netdev->hwaddr.ea[2] = n >> 24; | |
679 | netdev->hwaddr.ea[3] = n >> 16; | |
680 | netdev->hwaddr.ea[4] = n >> 8; | |
681 | netdev->hwaddr.ea[5] = n; | |
b5d57fc8 BP |
682 | netdev->mtu = 1500; |
683 | netdev->flags = 0; | |
b5d57fc8 | 684 | netdev->ifindex = -EOPNOTSUPP; |
9a81a637 IM |
685 | netdev->requested_n_rxq = netdev_->n_rxq; |
686 | netdev->requested_n_txq = netdev_->n_txq; | |
d537e73a | 687 | netdev->numa_id = 0; |
eab5611a | 688 | |
631486bd | 689 | dummy_packet_conn_init(&netdev->conn); |
eab5611a | 690 | |
417e7e66 | 691 | ovs_list_init(&netdev->rxes); |
36e2140d | 692 | ovs_mutex_unlock(&netdev->mutex); |
b5d57fc8 | 693 | |
5e1de67f | 694 | ovs_mutex_lock(&dummy_list_mutex); |
417e7e66 | 695 | ovs_list_push_back(&dummy_list, &netdev->list_node); |
5e1de67f BP |
696 | ovs_mutex_unlock(&dummy_list_mutex); |
697 | ||
614c4892 BP |
698 | return 0; |
699 | } | |
700 | ||
701 | static void | |
9dc63482 | 702 | netdev_dummy_destruct(struct netdev *netdev_) |
614c4892 | 703 | { |
b5d57fc8 | 704 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); |
614c4892 | 705 | |
5e1de67f | 706 | ovs_mutex_lock(&dummy_list_mutex); |
417e7e66 | 707 | ovs_list_remove(&netdev->list_node); |
5e1de67f BP |
708 | ovs_mutex_unlock(&dummy_list_mutex); |
709 | ||
36e2140d | 710 | ovs_mutex_lock(&netdev->mutex); |
631486bd AZ |
711 | dummy_packet_conn_close(&netdev->conn); |
712 | netdev->conn.type = NONE; | |
713 | ||
36e2140d | 714 | ovs_mutex_unlock(&netdev->mutex); |
86383816 | 715 | ovs_mutex_destroy(&netdev->mutex); |
9dc63482 BP |
716 | } |
717 | ||
718 | static void | |
719 | netdev_dummy_dealloc(struct netdev *netdev_) | |
720 | { | |
721 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
722 | ||
b5d57fc8 | 723 | free(netdev); |
614c4892 BP |
724 | } |
725 | ||
8073dd31 | 726 | static int |
9a81a637 | 727 | netdev_dummy_get_config(const struct netdev *dev, struct smap *args) |
8073dd31 | 728 | { |
9a81a637 | 729 | struct netdev_dummy *netdev = netdev_dummy_cast(dev); |
8073dd31 | 730 | |
5a9bf514 | 731 | ovs_mutex_lock(&netdev->mutex); |
55d87b06 | 732 | |
b5d57fc8 BP |
733 | if (netdev->ifindex >= 0) { |
734 | smap_add_format(args, "ifindex", "%d", netdev->ifindex); | |
8073dd31 | 735 | } |
55d87b06 | 736 | |
631486bd | 737 | dummy_packet_conn_get_config(&netdev->conn, args); |
5a9bf514 | 738 | |
9a81a637 IM |
739 | /* 'dummy-pmd' specific config. */ |
740 | if (!netdev_is_pmd(dev)) { | |
741 | goto exit; | |
742 | } | |
743 | smap_add_format(args, "requested_rx_queues", "%d", netdev->requested_n_rxq); | |
744 | smap_add_format(args, "configured_rx_queues", "%d", dev->n_rxq); | |
745 | smap_add_format(args, "requested_tx_queues", "%d", netdev->requested_n_txq); | |
746 | smap_add_format(args, "configured_tx_queues", "%d", dev->n_txq); | |
747 | ||
748 | exit: | |
55d87b06 | 749 | ovs_mutex_unlock(&netdev->mutex); |
8073dd31 NM |
750 | return 0; |
751 | } | |
752 | ||
2af602f2 | 753 | static int |
a8704b50 PS |
754 | netdev_dummy_get_addr_list(const struct netdev *netdev_, struct in6_addr **paddr, |
755 | struct in6_addr **pmask, int *n_addr) | |
2af602f2 TLSC |
756 | { |
757 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
a8704b50 PS |
758 | int cnt = 0, i = 0, err = 0; |
759 | struct in6_addr *addr, *mask; | |
2af602f2 TLSC |
760 | |
761 | ovs_mutex_lock(&netdev->mutex); | |
a8704b50 PS |
762 | if (netdev->address.s_addr != INADDR_ANY) { |
763 | cnt++; | |
764 | } | |
765 | ||
766 | if (ipv6_addr_is_set(&netdev->ipv6)) { | |
767 | cnt++; | |
768 | } | |
769 | if (!cnt) { | |
770 | err = EADDRNOTAVAIL; | |
771 | goto out; | |
772 | } | |
773 | addr = xmalloc(sizeof *addr * cnt); | |
774 | mask = xmalloc(sizeof *mask * cnt); | |
775 | if (netdev->address.s_addr != INADDR_ANY) { | |
776 | in6_addr_set_mapped_ipv4(&addr[i], netdev->address.s_addr); | |
777 | in6_addr_set_mapped_ipv4(&mask[i], netdev->netmask.s_addr); | |
778 | i++; | |
779 | } | |
780 | ||
781 | if (ipv6_addr_is_set(&netdev->ipv6)) { | |
782 | memcpy(&addr[i], &netdev->ipv6, sizeof *addr); | |
783 | memcpy(&mask[i], &netdev->ipv6_mask, sizeof *mask); | |
784 | i++; | |
785 | } | |
786 | if (paddr) { | |
787 | *paddr = addr; | |
788 | *pmask = mask; | |
789 | *n_addr = cnt; | |
790 | } else { | |
791 | free(addr); | |
792 | free(mask); | |
793 | } | |
794 | out: | |
2af602f2 TLSC |
795 | ovs_mutex_unlock(&netdev->mutex); |
796 | ||
a8704b50 | 797 | return err; |
2af602f2 TLSC |
798 | } |
799 | ||
a36de779 PS |
800 | static int |
801 | netdev_dummy_set_in4(struct netdev *netdev_, struct in_addr address, | |
802 | struct in_addr netmask) | |
803 | { | |
804 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
805 | ||
806 | ovs_mutex_lock(&netdev->mutex); | |
807 | netdev->address = address; | |
808 | netdev->netmask = netmask; | |
d2b11b5b | 809 | netdev_change_seq_changed(netdev_); |
a36de779 PS |
810 | ovs_mutex_unlock(&netdev->mutex); |
811 | ||
812 | return 0; | |
813 | } | |
814 | ||
2af602f2 | 815 | static int |
a8704b50 PS |
816 | netdev_dummy_set_in6(struct netdev *netdev_, struct in6_addr *in6, |
817 | struct in6_addr *mask) | |
2af602f2 TLSC |
818 | { |
819 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
820 | ||
821 | ovs_mutex_lock(&netdev->mutex); | |
822 | netdev->ipv6 = *in6; | |
a8704b50 | 823 | netdev->ipv6_mask = *mask; |
d2b11b5b | 824 | netdev_change_seq_changed(netdev_); |
2af602f2 TLSC |
825 | ovs_mutex_unlock(&netdev->mutex); |
826 | ||
827 | return 0; | |
828 | } | |
829 | ||
8073dd31 | 830 | static int |
b5d57fc8 | 831 | netdev_dummy_set_config(struct netdev *netdev_, const struct smap *args) |
614c4892 | 832 | { |
b5d57fc8 | 833 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); |
55d87b06 | 834 | const char *pcap; |
d66e4a5e | 835 | int new_n_rxq, new_n_txq, new_numa_id; |
614c4892 | 836 | |
86383816 | 837 | ovs_mutex_lock(&netdev->mutex); |
b5d57fc8 | 838 | netdev->ifindex = smap_get_int(args, "ifindex", -EOPNOTSUPP); |
eab5611a | 839 | |
631486bd | 840 | dummy_packet_conn_set_config(&netdev->conn, args); |
55d87b06 | 841 | |
f7791740 PS |
842 | if (netdev->rxq_pcap) { |
843 | fclose(netdev->rxq_pcap); | |
55d87b06 | 844 | } |
f7791740 | 845 | if (netdev->tx_pcap && netdev->tx_pcap != netdev->rxq_pcap) { |
55d87b06 BP |
846 | fclose(netdev->tx_pcap); |
847 | } | |
f7791740 | 848 | netdev->rxq_pcap = netdev->tx_pcap = NULL; |
55d87b06 BP |
849 | pcap = smap_get(args, "pcap"); |
850 | if (pcap) { | |
f7791740 | 851 | netdev->rxq_pcap = netdev->tx_pcap = ovs_pcap_open(pcap, "ab"); |
55d87b06 | 852 | } else { |
f7791740 | 853 | const char *rxq_pcap = smap_get(args, "rxq_pcap"); |
55d87b06 BP |
854 | const char *tx_pcap = smap_get(args, "tx_pcap"); |
855 | ||
f7791740 PS |
856 | if (rxq_pcap) { |
857 | netdev->rxq_pcap = ovs_pcap_open(rxq_pcap, "ab"); | |
55d87b06 BP |
858 | } |
859 | if (tx_pcap) { | |
50aa0364 | 860 | netdev->tx_pcap = ovs_pcap_open(tx_pcap, "ab"); |
55d87b06 BP |
861 | } |
862 | } | |
863 | ||
9a81a637 IM |
864 | netdev_change_seq_changed(netdev_); |
865 | ||
866 | /* 'dummy-pmd' specific config. */ | |
867 | if (!netdev_->netdev_class->is_pmd) { | |
868 | goto exit; | |
869 | } | |
870 | ||
871 | new_n_rxq = MAX(smap_get_int(args, "n_rxq", netdev->requested_n_rxq), 1); | |
d66e4a5e | 872 | new_n_txq = MAX(smap_get_int(args, "n_txq", netdev->requested_n_txq), 1); |
d537e73a DDP |
873 | new_numa_id = smap_get_int(args, "numa_id", 0); |
874 | if (new_n_rxq != netdev->requested_n_rxq | |
d66e4a5e | 875 | || new_n_txq != netdev->requested_n_txq |
d537e73a | 876 | || new_numa_id != netdev->requested_numa_id) { |
9a81a637 | 877 | netdev->requested_n_rxq = new_n_rxq; |
d66e4a5e | 878 | netdev->requested_n_txq = new_n_txq; |
d537e73a | 879 | netdev->requested_numa_id = new_numa_id; |
9a81a637 IM |
880 | netdev_request_reconfigure(netdev_); |
881 | } | |
86383816 | 882 | |
9a81a637 IM |
883 | exit: |
884 | ovs_mutex_unlock(&netdev->mutex); | |
614c4892 BP |
885 | return 0; |
886 | } | |
887 | ||
f9176a3a | 888 | static int |
d537e73a | 889 | netdev_dummy_get_numa_id(const struct netdev *netdev_) |
f9176a3a | 890 | { |
d537e73a DDP |
891 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); |
892 | ||
893 | ovs_mutex_lock(&netdev->mutex); | |
894 | int numa_id = netdev->numa_id; | |
895 | ovs_mutex_unlock(&netdev->mutex); | |
896 | ||
897 | return numa_id; | |
f9176a3a IM |
898 | } |
899 | ||
9a81a637 IM |
900 | /* Sets the number of tx queues and rx queues for the dummy PMD interface. */ |
901 | static int | |
902 | netdev_dummy_reconfigure(struct netdev *netdev_) | |
903 | { | |
904 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
905 | ||
906 | ovs_mutex_lock(&netdev->mutex); | |
907 | ||
908 | netdev_->n_txq = netdev->requested_n_txq; | |
909 | netdev_->n_rxq = netdev->requested_n_rxq; | |
d537e73a | 910 | netdev->numa_id = netdev->requested_numa_id; |
9a81a637 IM |
911 | |
912 | ovs_mutex_unlock(&netdev->mutex); | |
913 | return 0; | |
914 | } | |
915 | ||
f7791740 PS |
916 | static struct netdev_rxq * |
917 | netdev_dummy_rxq_alloc(void) | |
9dc63482 | 918 | { |
f7791740 | 919 | struct netdev_rxq_dummy *rx = xzalloc(sizeof *rx); |
9dc63482 BP |
920 | return &rx->up; |
921 | } | |
922 | ||
7b6b0ef4 | 923 | static int |
f7791740 | 924 | netdev_dummy_rxq_construct(struct netdev_rxq *rxq_) |
7b6b0ef4 | 925 | { |
f7791740 | 926 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
9dc63482 | 927 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
796223f5 | 928 | |
86383816 | 929 | ovs_mutex_lock(&netdev->mutex); |
417e7e66 BW |
930 | ovs_list_push_back(&netdev->rxes, &rx->node); |
931 | ovs_list_init(&rx->recv_queue); | |
e34cfdd9 | 932 | rx->recv_queue_len = 0; |
98045eda | 933 | rx->seq = seq_create(); |
86383816 | 934 | ovs_mutex_unlock(&netdev->mutex); |
796223f5 | 935 | |
7b6b0ef4 BP |
936 | return 0; |
937 | } | |
938 | ||
9dc63482 | 939 | static void |
f7791740 | 940 | netdev_dummy_rxq_destruct(struct netdev_rxq *rxq_) |
9dc63482 | 941 | { |
f7791740 | 942 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
86383816 | 943 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
9dc63482 | 944 | |
86383816 | 945 | ovs_mutex_lock(&netdev->mutex); |
417e7e66 | 946 | ovs_list_remove(&rx->node); |
8613db65 | 947 | pkt_list_delete(&rx->recv_queue); |
86383816 | 948 | ovs_mutex_unlock(&netdev->mutex); |
98045eda | 949 | seq_destroy(rx->seq); |
9dc63482 BP |
950 | } |
951 | ||
952 | static void | |
f7791740 | 953 | netdev_dummy_rxq_dealloc(struct netdev_rxq *rxq_) |
9dc63482 | 954 | { |
f7791740 | 955 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
9dc63482 BP |
956 | |
957 | free(rx); | |
958 | } | |
959 | ||
7b6b0ef4 | 960 | static int |
64839cf4 | 961 | netdev_dummy_rxq_recv(struct netdev_rxq *rxq_, struct dp_packet_batch *batch) |
fbac791a | 962 | { |
f7791740 | 963 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
86383816 | 964 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
cf62fa4c | 965 | struct dp_packet *packet; |
fbac791a | 966 | |
86383816 | 967 | ovs_mutex_lock(&netdev->mutex); |
417e7e66 | 968 | if (!ovs_list_is_empty(&rx->recv_queue)) { |
8613db65 DDP |
969 | struct pkt_list_node *pkt_node; |
970 | ||
417e7e66 | 971 | ASSIGN_CONTAINER(pkt_node, ovs_list_pop_front(&rx->recv_queue), list_node); |
8613db65 DDP |
972 | packet = pkt_node->pkt; |
973 | free(pkt_node); | |
86383816 BP |
974 | rx->recv_queue_len--; |
975 | } else { | |
976 | packet = NULL; | |
977 | } | |
978 | ovs_mutex_unlock(&netdev->mutex); | |
979 | ||
980 | if (!packet) { | |
f8cf6502 DDP |
981 | if (netdev_is_pmd(&netdev->up)) { |
982 | /* If 'netdev' is a PMD device, this is called as part of the PMD | |
983 | * thread busy loop. We yield here (without quiescing) for two | |
984 | * reasons: | |
985 | * | |
986 | * - To reduce the CPU utilization during the testsuite | |
987 | * - To give valgrind a chance to switch thread. According | |
988 | * to the valgrind documentation, there's a big lock that | |
989 | * prevents multiple thread from being executed at the same | |
990 | * time. On my system, without this sleep, the pmd threads | |
991 | * testcases fail under valgrind, because ovs-vswitchd becomes | |
992 | * unresponsive. */ | |
993 | sched_yield(); | |
994 | } | |
bfd3367b | 995 | return EAGAIN; |
fbac791a | 996 | } |
df1e5a3b PS |
997 | ovs_mutex_lock(&netdev->mutex); |
998 | netdev->stats.rx_packets++; | |
cf62fa4c | 999 | netdev->stats.rx_bytes += dp_packet_size(packet); |
df1e5a3b | 1000 | ovs_mutex_unlock(&netdev->mutex); |
fbac791a | 1001 | |
64839cf4 WT |
1002 | batch->packets[0] = packet; |
1003 | batch->count = 1; | |
df1e5a3b | 1004 | return 0; |
fbac791a BP |
1005 | } |
1006 | ||
1007 | static void | |
f7791740 | 1008 | netdev_dummy_rxq_wait(struct netdev_rxq *rxq_) |
796223f5 | 1009 | { |
f7791740 | 1010 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
86383816 | 1011 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
98045eda | 1012 | uint64_t seq = seq_read(rx->seq); |
86383816 BP |
1013 | |
1014 | ovs_mutex_lock(&netdev->mutex); | |
417e7e66 | 1015 | if (!ovs_list_is_empty(&rx->recv_queue)) { |
fbac791a | 1016 | poll_immediate_wake(); |
98045eda BP |
1017 | } else { |
1018 | seq_wait(rx->seq, seq); | |
fbac791a | 1019 | } |
86383816 | 1020 | ovs_mutex_unlock(&netdev->mutex); |
fbac791a BP |
1021 | } |
1022 | ||
1023 | static int | |
f7791740 | 1024 | netdev_dummy_rxq_drain(struct netdev_rxq *rxq_) |
fbac791a | 1025 | { |
f7791740 | 1026 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
86383816 BP |
1027 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
1028 | ||
1029 | ovs_mutex_lock(&netdev->mutex); | |
8613db65 | 1030 | pkt_list_delete(&rx->recv_queue); |
e34cfdd9 | 1031 | rx->recv_queue_len = 0; |
86383816 BP |
1032 | ovs_mutex_unlock(&netdev->mutex); |
1033 | ||
98045eda BP |
1034 | seq_change(rx->seq); |
1035 | ||
fbac791a | 1036 | return 0; |
7b6b0ef4 BP |
1037 | } |
1038 | ||
02d5bfe3 | 1039 | static int |
f00fa8cb | 1040 | netdev_dummy_send(struct netdev *netdev, int qid OVS_UNUSED, |
324c8374 IM |
1041 | struct dp_packet_batch *batch, bool may_steal, |
1042 | bool concurrent_txq OVS_UNUSED) | |
02d5bfe3 | 1043 | { |
b5d57fc8 | 1044 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
f4fd623c DDP |
1045 | int error = 0; |
1046 | int i; | |
eab5611a | 1047 | |
64839cf4 WT |
1048 | for (i = 0; i < batch->count; i++) { |
1049 | const void *buffer = dp_packet_data(batch->packets[i]); | |
1050 | size_t size = dp_packet_size(batch->packets[i]); | |
eab5611a | 1051 | |
64839cf4 | 1052 | size -= dp_packet_get_cutlen(batch->packets[i]); |
aaca4fe0 | 1053 | |
f4fd623c DDP |
1054 | if (size < ETH_HEADER_LEN) { |
1055 | error = EMSGSIZE; | |
1056 | break; | |
1057 | } else { | |
1058 | const struct eth_header *eth = buffer; | |
1059 | int max_size; | |
36e2140d | 1060 | |
f4fd623c DDP |
1061 | ovs_mutex_lock(&dev->mutex); |
1062 | max_size = dev->mtu + ETH_HEADER_LEN; | |
1063 | ovs_mutex_unlock(&dev->mutex); | |
1064 | ||
1065 | if (eth->eth_type == htons(ETH_TYPE_VLAN)) { | |
1066 | max_size += VLAN_HEADER_LEN; | |
1067 | } | |
1068 | if (size > max_size) { | |
1069 | error = EMSGSIZE; | |
1070 | break; | |
1071 | } | |
eab5611a | 1072 | } |
02d5bfe3 | 1073 | |
f4fd623c DDP |
1074 | ovs_mutex_lock(&dev->mutex); |
1075 | dev->stats.tx_packets++; | |
1076 | dev->stats.tx_bytes += size; | |
1077 | ||
1078 | dummy_packet_conn_send(&dev->conn, buffer, size); | |
02d5bfe3 | 1079 | |
bde96a9a BP |
1080 | /* Reply to ARP requests for 'dev''s assigned IP address. */ |
1081 | if (dev->address.s_addr) { | |
1082 | struct dp_packet packet; | |
1083 | struct flow flow; | |
1084 | ||
1085 | dp_packet_use_const(&packet, buffer, size); | |
1086 | flow_extract(&packet, &flow); | |
1087 | if (flow.dl_type == htons(ETH_TYPE_ARP) | |
1088 | && flow.nw_proto == ARP_OP_REQUEST | |
1089 | && flow.nw_dst == dev->address.s_addr) { | |
1090 | struct dp_packet *reply = dp_packet_new(0); | |
1091 | compose_arp(reply, ARP_OP_REPLY, dev->hwaddr, flow.dl_src, | |
1092 | false, flow.nw_dst, flow.nw_src); | |
9a81a637 | 1093 | netdev_dummy_queue_packet(dev, reply, 0); |
bde96a9a BP |
1094 | } |
1095 | } | |
1096 | ||
f4fd623c | 1097 | if (dev->tx_pcap) { |
cf62fa4c | 1098 | struct dp_packet packet; |
631486bd | 1099 | |
cf62fa4c | 1100 | dp_packet_use_const(&packet, buffer, size); |
f4fd623c DDP |
1101 | ovs_pcap_write(dev->tx_pcap, &packet); |
1102 | fflush(dev->tx_pcap); | |
1103 | } | |
55d87b06 | 1104 | |
f4fd623c | 1105 | ovs_mutex_unlock(&dev->mutex); |
55d87b06 BP |
1106 | } |
1107 | ||
64839cf4 | 1108 | dp_packet_delete_batch(batch, may_steal); |
eab5611a | 1109 | |
f4fd623c | 1110 | return error; |
02d5bfe3 BP |
1111 | } |
1112 | ||
614c4892 | 1113 | static int |
74ff3298 | 1114 | netdev_dummy_set_etheraddr(struct netdev *netdev, const struct eth_addr mac) |
614c4892 | 1115 | { |
b5d57fc8 | 1116 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
614c4892 | 1117 | |
86383816 | 1118 | ovs_mutex_lock(&dev->mutex); |
614c4892 | 1119 | if (!eth_addr_equals(dev->hwaddr, mac)) { |
74ff3298 | 1120 | dev->hwaddr = mac; |
3e912ffc | 1121 | netdev_change_seq_changed(netdev); |
614c4892 | 1122 | } |
86383816 | 1123 | ovs_mutex_unlock(&dev->mutex); |
614c4892 BP |
1124 | |
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static int | |
74ff3298 | 1129 | netdev_dummy_get_etheraddr(const struct netdev *netdev, struct eth_addr *mac) |
614c4892 | 1130 | { |
86383816 | 1131 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
614c4892 | 1132 | |
86383816 | 1133 | ovs_mutex_lock(&dev->mutex); |
74ff3298 | 1134 | *mac = dev->hwaddr; |
86383816 BP |
1135 | ovs_mutex_unlock(&dev->mutex); |
1136 | ||
614c4892 BP |
1137 | return 0; |
1138 | } | |
1139 | ||
1140 | static int | |
1141 | netdev_dummy_get_mtu(const struct netdev *netdev, int *mtup) | |
1142 | { | |
86383816 | 1143 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
614c4892 | 1144 | |
86383816 | 1145 | ovs_mutex_lock(&dev->mutex); |
614c4892 | 1146 | *mtup = dev->mtu; |
86383816 BP |
1147 | ovs_mutex_unlock(&dev->mutex); |
1148 | ||
614c4892 BP |
1149 | return 0; |
1150 | } | |
1151 | ||
9b020780 | 1152 | static int |
4124cb12 | 1153 | netdev_dummy_set_mtu(struct netdev *netdev, int mtu) |
9b020780 | 1154 | { |
b5d57fc8 | 1155 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
9b020780 | 1156 | |
86383816 | 1157 | ovs_mutex_lock(&dev->mutex); |
ae59d134 DDP |
1158 | if (dev->mtu != mtu) { |
1159 | dev->mtu = mtu; | |
1160 | netdev_change_seq_changed(netdev); | |
1161 | } | |
86383816 BP |
1162 | ovs_mutex_unlock(&dev->mutex); |
1163 | ||
9b020780 PS |
1164 | return 0; |
1165 | } | |
1166 | ||
614c4892 BP |
1167 | static int |
1168 | netdev_dummy_get_stats(const struct netdev *netdev, struct netdev_stats *stats) | |
1169 | { | |
86383816 | 1170 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
614c4892 | 1171 | |
86383816 | 1172 | ovs_mutex_lock(&dev->mutex); |
d6e3feb5 | 1173 | /* Passing only collected counters */ |
1174 | stats->tx_packets = dev->stats.tx_packets; | |
1175 | stats->tx_bytes = dev->stats.tx_bytes; | |
1176 | stats->rx_packets = dev->stats.rx_packets; | |
1177 | stats->rx_bytes = dev->stats.rx_bytes; | |
86383816 BP |
1178 | ovs_mutex_unlock(&dev->mutex); |
1179 | ||
614c4892 BP |
1180 | return 0; |
1181 | } | |
1182 | ||
f72dff1a BP |
1183 | static int |
1184 | netdev_dummy_get_queue(const struct netdev *netdev OVS_UNUSED, | |
1185 | unsigned int queue_id, struct smap *details OVS_UNUSED) | |
1186 | { | |
1187 | if (queue_id == 0) { | |
1188 | return 0; | |
1189 | } else { | |
1190 | return EINVAL; | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | static void | |
1195 | netdev_dummy_init_queue_stats(struct netdev_queue_stats *stats) | |
1196 | { | |
1197 | *stats = (struct netdev_queue_stats) { | |
1198 | .tx_bytes = UINT64_MAX, | |
1199 | .tx_packets = UINT64_MAX, | |
1200 | .tx_errors = UINT64_MAX, | |
1201 | .created = LLONG_MIN, | |
1202 | }; | |
1203 | } | |
1204 | ||
1205 | static int | |
1206 | netdev_dummy_get_queue_stats(const struct netdev *netdev OVS_UNUSED, | |
1207 | unsigned int queue_id, | |
1208 | struct netdev_queue_stats *stats) | |
1209 | { | |
1210 | if (queue_id == 0) { | |
1211 | netdev_dummy_init_queue_stats(stats); | |
1212 | return 0; | |
1213 | } else { | |
1214 | return EINVAL; | |
1215 | } | |
1216 | } | |
1217 | ||
1218 | struct netdev_dummy_queue_state { | |
1219 | unsigned int next_queue; | |
1220 | }; | |
1221 | ||
1222 | static int | |
1223 | netdev_dummy_queue_dump_start(const struct netdev *netdev OVS_UNUSED, | |
1224 | void **statep) | |
1225 | { | |
1226 | struct netdev_dummy_queue_state *state = xmalloc(sizeof *state); | |
1227 | state->next_queue = 0; | |
1228 | *statep = state; | |
1229 | return 0; | |
1230 | } | |
1231 | ||
1232 | static int | |
1233 | netdev_dummy_queue_dump_next(const struct netdev *netdev OVS_UNUSED, | |
1234 | void *state_, | |
1235 | unsigned int *queue_id, | |
1236 | struct smap *details OVS_UNUSED) | |
1237 | { | |
1238 | struct netdev_dummy_queue_state *state = state_; | |
1239 | if (state->next_queue == 0) { | |
1240 | *queue_id = 0; | |
1241 | state->next_queue++; | |
1242 | return 0; | |
1243 | } else { | |
1244 | return EOF; | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | static int | |
1249 | netdev_dummy_queue_dump_done(const struct netdev *netdev OVS_UNUSED, | |
1250 | void *state) | |
1251 | { | |
1252 | free(state); | |
1253 | return 0; | |
1254 | } | |
1255 | ||
1256 | static int | |
1257 | netdev_dummy_dump_queue_stats(const struct netdev *netdev OVS_UNUSED, | |
1258 | void (*cb)(unsigned int queue_id, | |
1259 | struct netdev_queue_stats *, | |
1260 | void *aux), | |
1261 | void *aux) | |
1262 | { | |
1263 | struct netdev_queue_stats stats; | |
1264 | netdev_dummy_init_queue_stats(&stats); | |
1265 | cb(0, &stats, aux); | |
1266 | return 0; | |
1267 | } | |
1268 | ||
8073dd31 NM |
1269 | static int |
1270 | netdev_dummy_get_ifindex(const struct netdev *netdev) | |
1271 | { | |
b5d57fc8 | 1272 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
86383816 BP |
1273 | int ifindex; |
1274 | ||
1275 | ovs_mutex_lock(&dev->mutex); | |
1276 | ifindex = dev->ifindex; | |
1277 | ovs_mutex_unlock(&dev->mutex); | |
8073dd31 | 1278 | |
86383816 | 1279 | return ifindex; |
8073dd31 NM |
1280 | } |
1281 | ||
614c4892 | 1282 | static int |
86383816 BP |
1283 | netdev_dummy_update_flags__(struct netdev_dummy *netdev, |
1284 | enum netdev_flags off, enum netdev_flags on, | |
1285 | enum netdev_flags *old_flagsp) | |
1286 | OVS_REQUIRES(netdev->mutex) | |
614c4892 | 1287 | { |
614c4892 BP |
1288 | if ((off | on) & ~(NETDEV_UP | NETDEV_PROMISC)) { |
1289 | return EINVAL; | |
1290 | } | |
1291 | ||
b5d57fc8 BP |
1292 | *old_flagsp = netdev->flags; |
1293 | netdev->flags |= on; | |
1294 | netdev->flags &= ~off; | |
1295 | if (*old_flagsp != netdev->flags) { | |
3e912ffc | 1296 | netdev_change_seq_changed(&netdev->up); |
614c4892 | 1297 | } |
86383816 | 1298 | |
614c4892 BP |
1299 | return 0; |
1300 | } | |
1301 | ||
86383816 BP |
1302 | static int |
1303 | netdev_dummy_update_flags(struct netdev *netdev_, | |
1304 | enum netdev_flags off, enum netdev_flags on, | |
1305 | enum netdev_flags *old_flagsp) | |
1306 | { | |
1307 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
1308 | int error; | |
1309 | ||
1310 | ovs_mutex_lock(&netdev->mutex); | |
1311 | error = netdev_dummy_update_flags__(netdev, off, on, old_flagsp); | |
1312 | ovs_mutex_unlock(&netdev->mutex); | |
1313 | ||
1314 | return error; | |
1315 | } | |
614c4892 BP |
1316 | \f |
1317 | /* Helper functions. */ | |
1318 | ||
d66e4a5e | 1319 | #define NETDEV_DUMMY_CLASS(NAME, PMD, RECOFIGURE) \ |
f9176a3a IM |
1320 | { \ |
1321 | NAME, \ | |
1322 | PMD, /* is_pmd */ \ | |
1323 | NULL, /* init */ \ | |
1324 | netdev_dummy_run, \ | |
1325 | netdev_dummy_wait, \ | |
1326 | \ | |
1327 | netdev_dummy_alloc, \ | |
1328 | netdev_dummy_construct, \ | |
1329 | netdev_dummy_destruct, \ | |
1330 | netdev_dummy_dealloc, \ | |
1331 | netdev_dummy_get_config, \ | |
1332 | netdev_dummy_set_config, \ | |
1333 | NULL, /* get_tunnel_config */ \ | |
1334 | NULL, /* build header */ \ | |
1335 | NULL, /* push header */ \ | |
1336 | NULL, /* pop header */ \ | |
1337 | netdev_dummy_get_numa_id, \ | |
d66e4a5e | 1338 | NULL, /* set_tx_multiq */ \ |
f9176a3a IM |
1339 | \ |
1340 | netdev_dummy_send, /* send */ \ | |
1341 | NULL, /* send_wait */ \ | |
1342 | \ | |
1343 | netdev_dummy_set_etheraddr, \ | |
1344 | netdev_dummy_get_etheraddr, \ | |
1345 | netdev_dummy_get_mtu, \ | |
1346 | netdev_dummy_set_mtu, \ | |
1347 | netdev_dummy_get_ifindex, \ | |
1348 | NULL, /* get_carrier */ \ | |
1349 | NULL, /* get_carrier_resets */ \ | |
1350 | NULL, /* get_miimon */ \ | |
1351 | netdev_dummy_get_stats, \ | |
1352 | \ | |
1353 | NULL, /* get_features */ \ | |
1354 | NULL, /* set_advertisements */ \ | |
1355 | \ | |
1356 | NULL, /* set_policing */ \ | |
1357 | NULL, /* get_qos_types */ \ | |
1358 | NULL, /* get_qos_capabilities */ \ | |
1359 | NULL, /* get_qos */ \ | |
1360 | NULL, /* set_qos */ \ | |
1361 | netdev_dummy_get_queue, \ | |
1362 | NULL, /* set_queue */ \ | |
1363 | NULL, /* delete_queue */ \ | |
1364 | netdev_dummy_get_queue_stats, \ | |
1365 | netdev_dummy_queue_dump_start, \ | |
1366 | netdev_dummy_queue_dump_next, \ | |
1367 | netdev_dummy_queue_dump_done, \ | |
1368 | netdev_dummy_dump_queue_stats, \ | |
1369 | \ | |
1370 | NULL, /* set_in4 */ \ | |
1371 | netdev_dummy_get_addr_list, \ | |
1372 | NULL, /* add_router */ \ | |
1373 | NULL, /* get_next_hop */ \ | |
1374 | NULL, /* get_status */ \ | |
1375 | NULL, /* arp_lookup */ \ | |
1376 | \ | |
1377 | netdev_dummy_update_flags, \ | |
9a81a637 | 1378 | RECOFIGURE, \ |
f9176a3a IM |
1379 | \ |
1380 | netdev_dummy_rxq_alloc, \ | |
1381 | netdev_dummy_rxq_construct, \ | |
1382 | netdev_dummy_rxq_destruct, \ | |
1383 | netdev_dummy_rxq_dealloc, \ | |
1384 | netdev_dummy_rxq_recv, \ | |
1385 | netdev_dummy_rxq_wait, \ | |
1386 | netdev_dummy_rxq_drain, \ | |
1387 | } | |
1388 | ||
1389 | static const struct netdev_class dummy_class = | |
d66e4a5e | 1390 | NETDEV_DUMMY_CLASS("dummy", false, NULL); |
9a81a637 | 1391 | |
e98d0cb3 DDP |
1392 | static const struct netdev_class dummy_internal_class = |
1393 | NETDEV_DUMMY_CLASS("dummy-internal", false, NULL); | |
1394 | ||
f9176a3a | 1395 | static const struct netdev_class dummy_pmd_class = |
9a81a637 | 1396 | NETDEV_DUMMY_CLASS("dummy-pmd", true, |
9a81a637 | 1397 | netdev_dummy_reconfigure); |
796223f5 | 1398 | |
8613db65 DDP |
1399 | static void |
1400 | pkt_list_delete(struct ovs_list *l) | |
1401 | { | |
1402 | struct pkt_list_node *pkt; | |
1403 | ||
1404 | LIST_FOR_EACH_POP(pkt, list_node, l) { | |
1405 | dp_packet_delete(pkt->pkt); | |
1406 | free(pkt); | |
1407 | } | |
1408 | } | |
1409 | ||
cf62fa4c | 1410 | static struct dp_packet * |
fbac791a BP |
1411 | eth_from_packet_or_flow(const char *s) |
1412 | { | |
1413 | enum odp_key_fitness fitness; | |
cf62fa4c | 1414 | struct dp_packet *packet; |
fbac791a BP |
1415 | struct ofpbuf odp_key; |
1416 | struct flow flow; | |
1417 | int error; | |
1418 | ||
1419 | if (!eth_from_hex(s, &packet)) { | |
1420 | return packet; | |
1421 | } | |
1422 | ||
1423 | /* Convert string to datapath key. | |
1424 | * | |
1425 | * It would actually be nicer to parse an OpenFlow-like flow key here, but | |
1426 | * the code for that currently calls exit() on parse error. We have to | |
1427 | * settle for parsing a datapath key for now. | |
1428 | */ | |
1429 | ofpbuf_init(&odp_key, 0); | |
e6cc0bab | 1430 | error = odp_flow_from_string(s, NULL, &odp_key, NULL); |
fbac791a BP |
1431 | if (error) { |
1432 | ofpbuf_uninit(&odp_key); | |
1433 | return NULL; | |
1434 | } | |
1435 | ||
1436 | /* Convert odp_key to flow. */ | |
6fd6ed71 | 1437 | fitness = odp_flow_key_to_flow(odp_key.data, odp_key.size, &flow); |
fbac791a BP |
1438 | if (fitness == ODP_FIT_ERROR) { |
1439 | ofpbuf_uninit(&odp_key); | |
1440 | return NULL; | |
1441 | } | |
1442 | ||
cf62fa4c | 1443 | packet = dp_packet_new(0); |
fbac791a BP |
1444 | flow_compose(packet, &flow); |
1445 | ||
1446 | ofpbuf_uninit(&odp_key); | |
1447 | return packet; | |
1448 | } | |
1449 | ||
323cc924 | 1450 | static void |
cf62fa4c | 1451 | netdev_dummy_queue_packet__(struct netdev_rxq_dummy *rx, struct dp_packet *packet) |
2273ea5a | 1452 | { |
8613db65 DDP |
1453 | struct pkt_list_node *pkt_node = xmalloc(sizeof *pkt_node); |
1454 | ||
1455 | pkt_node->pkt = packet; | |
417e7e66 | 1456 | ovs_list_push_back(&rx->recv_queue, &pkt_node->list_node); |
eab5611a | 1457 | rx->recv_queue_len++; |
98045eda | 1458 | seq_change(rx->seq); |
eab5611a | 1459 | } |
2273ea5a | 1460 | |
eab5611a | 1461 | static void |
9a81a637 IM |
1462 | netdev_dummy_queue_packet(struct netdev_dummy *dummy, struct dp_packet *packet, |
1463 | int queue_id) | |
55d87b06 | 1464 | OVS_REQUIRES(dummy->mutex) |
eab5611a | 1465 | { |
f7791740 | 1466 | struct netdev_rxq_dummy *rx, *prev; |
eab5611a | 1467 | |
f7791740 PS |
1468 | if (dummy->rxq_pcap) { |
1469 | ovs_pcap_write(dummy->rxq_pcap, packet); | |
1470 | fflush(dummy->rxq_pcap); | |
55d87b06 | 1471 | } |
eab5611a | 1472 | prev = NULL; |
2273ea5a | 1473 | LIST_FOR_EACH (rx, node, &dummy->rxes) { |
9a81a637 IM |
1474 | if (rx->up.queue_id == queue_id && |
1475 | rx->recv_queue_len < NETDEV_DUMMY_MAX_QUEUE) { | |
eab5611a | 1476 | if (prev) { |
cf62fa4c | 1477 | netdev_dummy_queue_packet__(prev, dp_packet_clone(packet)); |
eab5611a BP |
1478 | } |
1479 | prev = rx; | |
2273ea5a BP |
1480 | } |
1481 | } | |
eab5611a BP |
1482 | if (prev) { |
1483 | netdev_dummy_queue_packet__(prev, packet); | |
1484 | } else { | |
cf62fa4c | 1485 | dp_packet_delete(packet); |
eab5611a | 1486 | } |
2273ea5a BP |
1487 | } |
1488 | ||
fbac791a BP |
1489 | static void |
1490 | netdev_dummy_receive(struct unixctl_conn *conn, | |
1491 | int argc, const char *argv[], void *aux OVS_UNUSED) | |
1492 | { | |
b5d57fc8 | 1493 | struct netdev_dummy *dummy_dev; |
86f1d032 | 1494 | struct netdev *netdev; |
9a81a637 | 1495 | int i, k = 1, rx_qid = 0; |
fbac791a | 1496 | |
9a81a637 | 1497 | netdev = netdev_from_name(argv[k++]); |
86f1d032 | 1498 | if (!netdev || !is_dummy_class(netdev->netdev_class)) { |
bde9f75d | 1499 | unixctl_command_reply_error(conn, "no such dummy netdev"); |
9a81a637 | 1500 | goto exit_netdev; |
fbac791a | 1501 | } |
86f1d032 | 1502 | dummy_dev = netdev_dummy_cast(netdev); |
fbac791a | 1503 | |
9a81a637 IM |
1504 | ovs_mutex_lock(&dummy_dev->mutex); |
1505 | ||
1506 | if (argc > k + 1 && !strcmp(argv[k], "--qid")) { | |
1507 | rx_qid = strtol(argv[k + 1], NULL, 10); | |
1508 | if (rx_qid < 0 || rx_qid >= netdev->n_rxq) { | |
1509 | unixctl_command_reply_error(conn, "bad rx queue id."); | |
1510 | goto exit; | |
1511 | } | |
1512 | k += 2; | |
1513 | } | |
1514 | ||
1515 | for (i = k; i < argc; i++) { | |
cf62fa4c | 1516 | struct dp_packet *packet; |
fbac791a BP |
1517 | |
1518 | packet = eth_from_packet_or_flow(argv[i]); | |
1519 | if (!packet) { | |
bde9f75d | 1520 | unixctl_command_reply_error(conn, "bad packet syntax"); |
86f1d032 | 1521 | goto exit; |
fbac791a BP |
1522 | } |
1523 | ||
9a81a637 | 1524 | netdev_dummy_queue_packet(dummy_dev, packet, rx_qid); |
fbac791a BP |
1525 | } |
1526 | ||
323cc924 | 1527 | unixctl_command_reply(conn, NULL); |
86f1d032 BP |
1528 | |
1529 | exit: | |
9a81a637 IM |
1530 | ovs_mutex_unlock(&dummy_dev->mutex); |
1531 | exit_netdev: | |
86f1d032 | 1532 | netdev_close(netdev); |
fbac791a BP |
1533 | } |
1534 | ||
95d4ec33 | 1535 | static void |
b5d57fc8 | 1536 | netdev_dummy_set_admin_state__(struct netdev_dummy *dev, bool admin_state) |
86383816 | 1537 | OVS_REQUIRES(dev->mutex) |
95d4ec33 EJ |
1538 | { |
1539 | enum netdev_flags old_flags; | |
1540 | ||
1541 | if (admin_state) { | |
86383816 | 1542 | netdev_dummy_update_flags__(dev, 0, NETDEV_UP, &old_flags); |
95d4ec33 | 1543 | } else { |
86383816 | 1544 | netdev_dummy_update_flags__(dev, NETDEV_UP, 0, &old_flags); |
95d4ec33 EJ |
1545 | } |
1546 | } | |
1547 | ||
1548 | static void | |
1549 | netdev_dummy_set_admin_state(struct unixctl_conn *conn, int argc, | |
1550 | const char *argv[], void *aux OVS_UNUSED) | |
1551 | { | |
1552 | bool up; | |
1553 | ||
1554 | if (!strcasecmp(argv[argc - 1], "up")) { | |
1555 | up = true; | |
1556 | } else if ( !strcasecmp(argv[argc - 1], "down")) { | |
1557 | up = false; | |
1558 | } else { | |
1559 | unixctl_command_reply_error(conn, "Invalid Admin State"); | |
1560 | return; | |
1561 | } | |
1562 | ||
1563 | if (argc > 2) { | |
86f1d032 BP |
1564 | struct netdev *netdev = netdev_from_name(argv[1]); |
1565 | if (netdev && is_dummy_class(netdev->netdev_class)) { | |
1566 | struct netdev_dummy *dummy_dev = netdev_dummy_cast(netdev); | |
95d4ec33 | 1567 | |
86383816 | 1568 | ovs_mutex_lock(&dummy_dev->mutex); |
b5d57fc8 | 1569 | netdev_dummy_set_admin_state__(dummy_dev, up); |
86383816 BP |
1570 | ovs_mutex_unlock(&dummy_dev->mutex); |
1571 | ||
86f1d032 | 1572 | netdev_close(netdev); |
95d4ec33 EJ |
1573 | } else { |
1574 | unixctl_command_reply_error(conn, "Unknown Dummy Interface"); | |
86f1d032 | 1575 | netdev_close(netdev); |
95d4ec33 EJ |
1576 | return; |
1577 | } | |
1578 | } else { | |
5e1de67f | 1579 | struct netdev_dummy *netdev; |
86383816 | 1580 | |
5e1de67f BP |
1581 | ovs_mutex_lock(&dummy_list_mutex); |
1582 | LIST_FOR_EACH (netdev, list_node, &dummy_list) { | |
86383816 BP |
1583 | ovs_mutex_lock(&netdev->mutex); |
1584 | netdev_dummy_set_admin_state__(netdev, up); | |
1585 | ovs_mutex_unlock(&netdev->mutex); | |
95d4ec33 | 1586 | } |
5e1de67f | 1587 | ovs_mutex_unlock(&dummy_list_mutex); |
95d4ec33 EJ |
1588 | } |
1589 | unixctl_command_reply(conn, "OK"); | |
1590 | } | |
1591 | ||
7d7fffe8 AZ |
1592 | static void |
1593 | display_conn_state__(struct ds *s, const char *name, | |
1594 | enum dummy_netdev_conn_state state) | |
1595 | { | |
1596 | ds_put_format(s, "%s: ", name); | |
1597 | ||
1598 | switch (state) { | |
1599 | case CONN_STATE_CONNECTED: | |
1600 | ds_put_cstr(s, "connected\n"); | |
1601 | break; | |
1602 | ||
1603 | case CONN_STATE_NOT_CONNECTED: | |
1604 | ds_put_cstr(s, "disconnected\n"); | |
1605 | break; | |
1606 | ||
1607 | case CONN_STATE_UNKNOWN: | |
1608 | default: | |
1609 | ds_put_cstr(s, "unknown\n"); | |
1610 | break; | |
1611 | }; | |
1612 | } | |
1613 | ||
1614 | static void | |
1615 | netdev_dummy_conn_state(struct unixctl_conn *conn, int argc, | |
1616 | const char *argv[], void *aux OVS_UNUSED) | |
1617 | { | |
1618 | enum dummy_netdev_conn_state state = CONN_STATE_UNKNOWN; | |
1619 | struct ds s; | |
1620 | ||
1621 | ds_init(&s); | |
1622 | ||
1623 | if (argc > 1) { | |
1624 | const char *dev_name = argv[1]; | |
1625 | struct netdev *netdev = netdev_from_name(dev_name); | |
1626 | ||
1627 | if (netdev && is_dummy_class(netdev->netdev_class)) { | |
1628 | struct netdev_dummy *dummy_dev = netdev_dummy_cast(netdev); | |
1629 | ||
1630 | ovs_mutex_lock(&dummy_dev->mutex); | |
1631 | state = dummy_netdev_get_conn_state(&dummy_dev->conn); | |
1632 | ovs_mutex_unlock(&dummy_dev->mutex); | |
1633 | ||
1634 | netdev_close(netdev); | |
1635 | } | |
1636 | display_conn_state__(&s, dev_name, state); | |
1637 | } else { | |
1638 | struct netdev_dummy *netdev; | |
1639 | ||
1640 | ovs_mutex_lock(&dummy_list_mutex); | |
1641 | LIST_FOR_EACH (netdev, list_node, &dummy_list) { | |
1642 | ovs_mutex_lock(&netdev->mutex); | |
1643 | state = dummy_netdev_get_conn_state(&netdev->conn); | |
1644 | ovs_mutex_unlock(&netdev->mutex); | |
1645 | if (state != CONN_STATE_UNKNOWN) { | |
1646 | display_conn_state__(&s, netdev->up.name, state); | |
1647 | } | |
1648 | } | |
1649 | ovs_mutex_unlock(&dummy_list_mutex); | |
1650 | } | |
1651 | ||
1652 | unixctl_command_reply(conn, ds_cstr(&s)); | |
1653 | ds_destroy(&s); | |
1654 | } | |
1655 | ||
a36de779 PS |
1656 | static void |
1657 | netdev_dummy_ip4addr(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
1658 | const char *argv[], void *aux OVS_UNUSED) | |
1659 | { | |
1660 | struct netdev *netdev = netdev_from_name(argv[1]); | |
1661 | ||
1662 | if (netdev && is_dummy_class(netdev->netdev_class)) { | |
e7695092 BP |
1663 | struct in_addr ip, mask; |
1664 | char *error; | |
a36de779 | 1665 | |
e7695092 BP |
1666 | error = ip_parse_masked(argv[2], &ip.s_addr, &mask.s_addr); |
1667 | if (!error) { | |
a36de779 PS |
1668 | netdev_dummy_set_in4(netdev, ip, mask); |
1669 | unixctl_command_reply(conn, "OK"); | |
1670 | } else { | |
e7695092 BP |
1671 | unixctl_command_reply_error(conn, error); |
1672 | free(error); | |
a36de779 | 1673 | } |
2af602f2 TLSC |
1674 | } else { |
1675 | unixctl_command_reply_error(conn, "Unknown Dummy Interface"); | |
1676 | } | |
1677 | ||
1678 | netdev_close(netdev); | |
1679 | } | |
1680 | ||
1681 | static void | |
1682 | netdev_dummy_ip6addr(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
1683 | const char *argv[], void *aux OVS_UNUSED) | |
1684 | { | |
1685 | struct netdev *netdev = netdev_from_name(argv[1]); | |
a36de779 | 1686 | |
2af602f2 | 1687 | if (netdev && is_dummy_class(netdev->netdev_class)) { |
2af602f2 | 1688 | struct in6_addr ip6; |
a8704b50 PS |
1689 | char *error; |
1690 | uint32_t plen; | |
2af602f2 | 1691 | |
a8704b50 PS |
1692 | error = ipv6_parse_cidr(argv[2], &ip6, &plen); |
1693 | if (!error) { | |
1694 | struct in6_addr mask; | |
1695 | ||
1696 | mask = ipv6_create_mask(plen); | |
1697 | netdev_dummy_set_in6(netdev, &ip6, &mask); | |
2af602f2 TLSC |
1698 | unixctl_command_reply(conn, "OK"); |
1699 | } else { | |
a8704b50 PS |
1700 | unixctl_command_reply_error(conn, error); |
1701 | free(error); | |
2af602f2 | 1702 | } |
a36de779 PS |
1703 | netdev_close(netdev); |
1704 | } else { | |
1705 | unixctl_command_reply_error(conn, "Unknown Dummy Interface"); | |
a36de779 PS |
1706 | } |
1707 | ||
2af602f2 | 1708 | netdev_close(netdev); |
a36de779 PS |
1709 | } |
1710 | ||
2af602f2 | 1711 | |
8420c7ad BP |
1712 | static void |
1713 | netdev_dummy_override(const char *type) | |
1714 | { | |
1715 | if (!netdev_unregister_provider(type)) { | |
1716 | struct netdev_class *class; | |
1717 | int error; | |
1718 | ||
1719 | class = xmemdup(&dummy_class, sizeof dummy_class); | |
1720 | class->type = xstrdup(type); | |
1721 | error = netdev_register_provider(class); | |
1722 | if (error) { | |
1723 | VLOG_ERR("%s: failed to register netdev provider (%s)", | |
1724 | type, ovs_strerror(error)); | |
1725 | free(CONST_CAST(char *, class->type)); | |
1726 | free(class); | |
1727 | } | |
1728 | } | |
1729 | } | |
1730 | ||
614c4892 | 1731 | void |
8420c7ad | 1732 | netdev_dummy_register(enum dummy_level level) |
614c4892 | 1733 | { |
9a81a637 IM |
1734 | unixctl_command_register("netdev-dummy/receive", |
1735 | "name [--qid queue_id] packet|flow...", | |
fbac791a | 1736 | 2, INT_MAX, netdev_dummy_receive, NULL); |
95d4ec33 EJ |
1737 | unixctl_command_register("netdev-dummy/set-admin-state", |
1738 | "[netdev] up|down", 1, 2, | |
1739 | netdev_dummy_set_admin_state, NULL); | |
7d7fffe8 AZ |
1740 | unixctl_command_register("netdev-dummy/conn-state", |
1741 | "[netdev]", 0, 1, | |
1742 | netdev_dummy_conn_state, NULL); | |
a36de779 PS |
1743 | unixctl_command_register("netdev-dummy/ip4addr", |
1744 | "[netdev] ipaddr/mask-prefix-len", 2, 2, | |
1745 | netdev_dummy_ip4addr, NULL); | |
2af602f2 TLSC |
1746 | unixctl_command_register("netdev-dummy/ip6addr", |
1747 | "[netdev] ip6addr", 2, 2, | |
1748 | netdev_dummy_ip6addr, NULL); | |
a36de779 | 1749 | |
8420c7ad | 1750 | if (level == DUMMY_OVERRIDE_ALL) { |
0cbfe35d BP |
1751 | struct sset types; |
1752 | const char *type; | |
1753 | ||
1754 | sset_init(&types); | |
1755 | netdev_enumerate_types(&types); | |
1756 | SSET_FOR_EACH (type, &types) { | |
8420c7ad BP |
1757 | if (strcmp(type, "patch")) { |
1758 | netdev_dummy_override(type); | |
0cbfe35d BP |
1759 | } |
1760 | } | |
1761 | sset_destroy(&types); | |
8420c7ad BP |
1762 | } else if (level == DUMMY_OVERRIDE_SYSTEM) { |
1763 | netdev_dummy_override("system"); | |
0cbfe35d BP |
1764 | } |
1765 | netdev_register_provider(&dummy_class); | |
e98d0cb3 | 1766 | netdev_register_provider(&dummy_internal_class); |
f9176a3a | 1767 | netdev_register_provider(&dummy_pmd_class); |
c060c4cf | 1768 | |
7c54c27f | 1769 | netdev_vport_tunnel_register(); |
614c4892 | 1770 | } |