]>
Commit | Line | Data |
---|---|---|
8a9562d2 PS |
1 | /* |
2 | * Copyright (c) 2014 Nicira, Inc. | |
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 <stdio.h> | |
20 | #include <string.h> | |
21 | #include <signal.h> | |
22 | #include <stdlib.h> | |
23 | #include <pthread.h> | |
24 | #include <config.h> | |
25 | #include <errno.h> | |
26 | #include <sched.h> | |
27 | #include <stdlib.h> | |
28 | #include <unistd.h> | |
29 | #include <stdio.h> | |
30 | ||
31 | #include "connectivity.h" | |
32 | #include "dpif-netdev.h" | |
33 | #include "list.h" | |
34 | #include "netdev-dpdk.h" | |
35 | #include "netdev-provider.h" | |
36 | #include "netdev-vport.h" | |
37 | #include "odp-util.h" | |
38 | #include "ofp-print.h" | |
39 | #include "ofpbuf.h" | |
40 | #include "ovs-thread.h" | |
41 | #include "ovs-rcu.h" | |
42 | #include "packets.h" | |
43 | #include "shash.h" | |
44 | #include "seq.h" | |
45 | #include "sset.h" | |
46 | #include "unaligned.h" | |
47 | #include "timeval.h" | |
48 | #include "unixctl.h" | |
49 | #include "vlog.h" | |
50 | ||
51 | VLOG_DEFINE_THIS_MODULE(dpdk); | |
52 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20); | |
53 | ||
54 | #define DPDK_PORT_WATCHDOG_INTERVAL 5 | |
55 | ||
56 | #define OVS_CACHE_LINE_SIZE CACHE_LINE_SIZE | |
57 | #define OVS_VPORT_DPDK "ovs_dpdk" | |
58 | ||
59 | /* | |
60 | * need to reserve tons of extra space in the mbufs so we can align the | |
61 | * DMA addresses to 4KB. | |
62 | */ | |
63 | ||
64 | #define MTU_TO_MAX_LEN(mtu) ((mtu) + ETHER_HDR_LEN + ETHER_CRC_LEN) | |
65 | #define MBUF_SIZE(mtu) (MTU_TO_MAX_LEN(mtu) + (512) + \ | |
66 | sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM) | |
67 | ||
68 | /* TODO: mempool size should be based on system resources. */ | |
69 | #define NB_MBUF (4096 * 64) | |
70 | #define MP_CACHE_SZ (256 * 2) | |
71 | #define SOCKET0 0 | |
72 | ||
73 | #define NON_PMD_THREAD_TX_QUEUE 0 | |
74 | ||
75 | /* TODO: Needs per NIC value for these constants. */ | |
76 | #define RX_PTHRESH 32 /* Default values of RX prefetch threshold reg. */ | |
77 | #define RX_HTHRESH 32 /* Default values of RX host threshold reg. */ | |
78 | #define RX_WTHRESH 16 /* Default values of RX write-back threshold reg. */ | |
79 | ||
80 | #define TX_PTHRESH 36 /* Default values of TX prefetch threshold reg. */ | |
81 | #define TX_HTHRESH 0 /* Default values of TX host threshold reg. */ | |
82 | #define TX_WTHRESH 0 /* Default values of TX write-back threshold reg. */ | |
83 | ||
84 | static const struct rte_eth_conf port_conf = { | |
85 | .rxmode = { | |
86 | .mq_mode = ETH_MQ_RX_RSS, | |
87 | .split_hdr_size = 0, | |
88 | .header_split = 0, /* Header Split disabled */ | |
89 | .hw_ip_checksum = 0, /* IP checksum offload disabled */ | |
90 | .hw_vlan_filter = 0, /* VLAN filtering disabled */ | |
91 | .jumbo_frame = 0, /* Jumbo Frame Support disabled */ | |
92 | .hw_strip_crc = 0, | |
93 | }, | |
94 | .rx_adv_conf = { | |
95 | .rss_conf = { | |
96 | .rss_key = NULL, | |
97 | .rss_hf = ETH_RSS_IPV4_TCP | ETH_RSS_IPV4 | ETH_RSS_IPV6, | |
98 | }, | |
99 | }, | |
100 | .txmode = { | |
101 | .mq_mode = ETH_MQ_TX_NONE, | |
102 | }, | |
103 | }; | |
104 | ||
105 | static const struct rte_eth_rxconf rx_conf = { | |
106 | .rx_thresh = { | |
107 | .pthresh = RX_PTHRESH, | |
108 | .hthresh = RX_HTHRESH, | |
109 | .wthresh = RX_WTHRESH, | |
110 | }, | |
111 | }; | |
112 | ||
113 | static const struct rte_eth_txconf tx_conf = { | |
114 | .tx_thresh = { | |
115 | .pthresh = TX_PTHRESH, | |
116 | .hthresh = TX_HTHRESH, | |
117 | .wthresh = TX_WTHRESH, | |
118 | }, | |
119 | .tx_free_thresh = 0, | |
120 | .tx_rs_thresh = 0, | |
121 | }; | |
122 | ||
123 | enum { MAX_RX_QUEUE_LEN = 64 }; | |
124 | enum { MAX_TX_QUEUE_LEN = 64 }; | |
125 | enum { DRAIN_TSC = 200000ULL }; | |
126 | ||
127 | static int rte_eal_init_ret = ENODEV; | |
128 | ||
129 | static struct ovs_mutex dpdk_mutex = OVS_MUTEX_INITIALIZER; | |
130 | ||
131 | /* Contains all 'struct dpdk_dev's. */ | |
132 | static struct list dpdk_list OVS_GUARDED_BY(dpdk_mutex) | |
133 | = LIST_INITIALIZER(&dpdk_list); | |
134 | ||
135 | static struct list dpdk_mp_list OVS_GUARDED_BY(dpdk_mutex) | |
136 | = LIST_INITIALIZER(&dpdk_mp_list); | |
137 | ||
138 | static pthread_t watchdog_thread; | |
139 | ||
140 | struct dpdk_mp { | |
141 | struct rte_mempool *mp; | |
142 | int mtu; | |
143 | int socket_id; | |
144 | int refcount; | |
145 | struct list list_node OVS_GUARDED_BY(dpdk_mutex); | |
146 | }; | |
147 | ||
148 | struct dpdk_tx_queue { | |
149 | rte_spinlock_t tx_lock; | |
150 | int count; | |
151 | uint64_t tsc; | |
152 | struct rte_mbuf *burst_pkts[MAX_TX_QUEUE_LEN]; | |
153 | }; | |
154 | ||
155 | struct netdev_dpdk { | |
156 | struct netdev up; | |
157 | int port_id; | |
158 | int max_packet_len; | |
159 | ||
160 | struct dpdk_tx_queue tx_q[NR_QUEUE]; | |
161 | ||
162 | struct ovs_mutex mutex OVS_ACQ_AFTER(dpdk_mutex); | |
163 | ||
164 | struct dpdk_mp *dpdk_mp; | |
165 | int mtu; | |
166 | int socket_id; | |
167 | int buf_size; | |
168 | struct netdev_stats stats_offset; | |
169 | struct netdev_stats stats; | |
170 | ||
171 | uint8_t hwaddr[ETH_ADDR_LEN]; | |
172 | enum netdev_flags flags; | |
173 | ||
174 | struct rte_eth_link link; | |
175 | int link_reset_cnt; | |
176 | ||
177 | /* In dpdk_list. */ | |
178 | struct list list_node OVS_GUARDED_BY(dpdk_mutex); | |
179 | }; | |
180 | ||
181 | struct netdev_rxq_dpdk { | |
182 | struct netdev_rxq up; | |
183 | int port_id; | |
184 | }; | |
185 | ||
186 | static int netdev_dpdk_construct(struct netdev *); | |
187 | ||
188 | static bool | |
189 | is_dpdk_class(const struct netdev_class *class) | |
190 | { | |
191 | return class->construct == netdev_dpdk_construct; | |
192 | } | |
193 | ||
194 | /* TODO: use dpdk malloc for entire OVS. infact huge page shld be used | |
195 | * for all other sengments data, bss and text. */ | |
196 | ||
197 | static void * | |
198 | dpdk_rte_mzalloc(size_t sz) | |
199 | { | |
200 | void *ptr; | |
201 | ||
202 | ptr = rte_zmalloc(OVS_VPORT_DPDK, sz, OVS_CACHE_LINE_SIZE); | |
203 | if (ptr == NULL) { | |
204 | out_of_memory(); | |
205 | } | |
206 | return ptr; | |
207 | } | |
208 | ||
209 | void | |
210 | free_dpdk_buf(struct ofpbuf *b) | |
211 | { | |
212 | struct rte_mbuf *pkt; | |
213 | ||
214 | pkt = b->private_p; | |
215 | if (!pkt) { | |
216 | return; | |
217 | } | |
218 | ||
219 | rte_mempool_put(pkt->pool, pkt); | |
220 | } | |
221 | ||
222 | static struct dpdk_mp * | |
223 | dpdk_mp_get(int socket_id, int mtu) OVS_REQUIRES(dpdk_mutex) | |
224 | { | |
225 | struct dpdk_mp *dmp = NULL; | |
226 | char mp_name[RTE_MEMPOOL_NAMESIZE]; | |
227 | ||
228 | LIST_FOR_EACH (dmp, list_node, &dpdk_mp_list) { | |
229 | if (dmp->socket_id == socket_id && dmp->mtu == mtu) { | |
230 | dmp->refcount++; | |
231 | return dmp; | |
232 | } | |
233 | } | |
234 | ||
235 | dmp = dpdk_rte_mzalloc(sizeof *dmp); | |
236 | dmp->socket_id = socket_id; | |
237 | dmp->mtu = mtu; | |
238 | dmp->refcount = 1; | |
239 | ||
240 | snprintf(mp_name, RTE_MEMPOOL_NAMESIZE, "ovs_mp_%d", dmp->mtu); | |
241 | dmp->mp = rte_mempool_create(mp_name, NB_MBUF, MBUF_SIZE(mtu), | |
242 | MP_CACHE_SZ, | |
243 | sizeof(struct rte_pktmbuf_pool_private), | |
244 | rte_pktmbuf_pool_init, NULL, | |
245 | rte_pktmbuf_init, NULL, | |
246 | socket_id, 0); | |
247 | ||
248 | if (dmp->mp == NULL) { | |
249 | return NULL; | |
250 | } | |
251 | ||
252 | list_push_back(&dpdk_mp_list, &dmp->list_node); | |
253 | return dmp; | |
254 | } | |
255 | ||
256 | static void | |
257 | dpdk_mp_put(struct dpdk_mp *dmp) | |
258 | { | |
259 | ||
260 | if (!dmp) { | |
261 | return; | |
262 | } | |
263 | ||
264 | dmp->refcount--; | |
265 | ovs_assert(dmp->refcount >= 0); | |
266 | ||
267 | #if 0 | |
268 | /* I could not find any API to destroy mp. */ | |
269 | if (dmp->refcount == 0) { | |
270 | list_delete(dmp->list_node); | |
271 | /* destroy mp-pool. */ | |
272 | } | |
273 | #endif | |
274 | } | |
275 | ||
276 | static void | |
277 | check_link_status(struct netdev_dpdk *dev) | |
278 | { | |
279 | struct rte_eth_link link; | |
280 | ||
281 | rte_eth_link_get_nowait(dev->port_id, &link); | |
282 | ||
283 | if (dev->link.link_status != link.link_status) { | |
284 | seq_change(connectivity_seq_get()); | |
285 | ||
286 | dev->link_reset_cnt++; | |
287 | dev->link = link; | |
288 | if (dev->link.link_status) { | |
289 | VLOG_DBG_RL(&rl, "Port %d Link Up - speed %u Mbps - %s", | |
290 | dev->port_id, (unsigned)dev->link.link_speed, | |
291 | (dev->link.link_duplex == ETH_LINK_FULL_DUPLEX) ? | |
292 | ("full-duplex") : ("half-duplex")); | |
293 | } else { | |
294 | VLOG_DBG_RL(&rl, "Port %d Link Down", dev->port_id); | |
295 | } | |
296 | } | |
297 | } | |
298 | ||
299 | static void * | |
300 | dpdk_watchdog(void *dummy OVS_UNUSED) | |
301 | { | |
302 | struct netdev_dpdk *dev; | |
303 | ||
304 | pthread_detach(pthread_self()); | |
305 | ||
306 | for (;;) { | |
307 | ovs_mutex_lock(&dpdk_mutex); | |
308 | LIST_FOR_EACH (dev, list_node, &dpdk_list) { | |
309 | ovs_mutex_lock(&dev->mutex); | |
310 | check_link_status(dev); | |
311 | ovs_mutex_unlock(&dev->mutex); | |
312 | } | |
313 | ovs_mutex_unlock(&dpdk_mutex); | |
314 | xsleep(DPDK_PORT_WATCHDOG_INTERVAL); | |
315 | } | |
316 | ||
317 | return NULL; | |
318 | } | |
319 | ||
320 | static int | |
321 | dpdk_eth_dev_init(struct netdev_dpdk *dev) OVS_REQUIRES(dpdk_mutex) | |
322 | { | |
323 | struct rte_pktmbuf_pool_private *mbp_priv; | |
324 | struct ether_addr eth_addr; | |
325 | int diag; | |
326 | int i; | |
327 | ||
328 | if (dev->port_id < 0 || dev->port_id >= rte_eth_dev_count()) { | |
329 | return -ENODEV; | |
330 | } | |
331 | ||
332 | diag = rte_eth_dev_configure(dev->port_id, NR_QUEUE, NR_QUEUE, &port_conf); | |
333 | if (diag) { | |
334 | VLOG_ERR("eth dev config error %d",diag); | |
335 | return diag; | |
336 | } | |
337 | ||
338 | for (i = 0; i < NR_QUEUE; i++) { | |
339 | diag = rte_eth_tx_queue_setup(dev->port_id, i, 64, 0, &tx_conf); | |
340 | if (diag) { | |
341 | VLOG_ERR("eth dev tx queue setup error %d",diag); | |
342 | return diag; | |
343 | } | |
344 | } | |
345 | ||
346 | for (i = 0; i < NR_QUEUE; i++) { | |
347 | diag = rte_eth_rx_queue_setup(dev->port_id, i, 64, 0, &rx_conf, | |
348 | dev->dpdk_mp->mp); | |
349 | if (diag) { | |
350 | VLOG_ERR("eth dev rx queue setup error %d",diag); | |
351 | return diag; | |
352 | } | |
353 | } | |
354 | ||
355 | diag = rte_eth_dev_start(dev->port_id); | |
356 | if (diag) { | |
357 | VLOG_ERR("eth dev start error %d",diag); | |
358 | return diag; | |
359 | } | |
360 | ||
361 | rte_eth_promiscuous_enable(dev->port_id); | |
362 | rte_eth_allmulticast_enable(dev->port_id); | |
363 | ||
364 | memset(ð_addr, 0x0, sizeof(eth_addr)); | |
365 | rte_eth_macaddr_get(dev->port_id, ð_addr); | |
366 | VLOG_INFO_RL(&rl, "Port %d: "ETH_ADDR_FMT"", | |
367 | dev->port_id, ETH_ADDR_ARGS(eth_addr.addr_bytes)); | |
368 | ||
369 | memcpy(dev->hwaddr, eth_addr.addr_bytes, ETH_ADDR_LEN); | |
370 | rte_eth_link_get_nowait(dev->port_id, &dev->link); | |
371 | ||
372 | mbp_priv = rte_mempool_get_priv(dev->dpdk_mp->mp); | |
373 | dev->buf_size = mbp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM; | |
374 | ||
375 | dev->flags = NETDEV_UP | NETDEV_PROMISC; | |
376 | return 0; | |
377 | } | |
378 | ||
379 | static struct netdev_dpdk * | |
380 | netdev_dpdk_cast(const struct netdev *netdev) | |
381 | { | |
382 | return CONTAINER_OF(netdev, struct netdev_dpdk, up); | |
383 | } | |
384 | ||
385 | static struct netdev * | |
386 | netdev_dpdk_alloc(void) | |
387 | { | |
388 | struct netdev_dpdk *netdev = dpdk_rte_mzalloc(sizeof *netdev); | |
389 | return &netdev->up; | |
390 | } | |
391 | ||
392 | static int | |
393 | netdev_dpdk_construct(struct netdev *netdev_) | |
394 | { | |
395 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
396 | unsigned int port_no; | |
397 | char *cport; | |
398 | int err; | |
399 | int i; | |
400 | ||
401 | if (rte_eal_init_ret) { | |
402 | return rte_eal_init_ret; | |
403 | } | |
404 | ||
405 | ovs_mutex_lock(&dpdk_mutex); | |
406 | cport = netdev_->name + 4; /* Names always start with "dpdk" */ | |
407 | ||
408 | if (strncmp(netdev_->name, "dpdk", 4)) { | |
409 | err = ENODEV; | |
410 | goto unlock_dpdk; | |
411 | } | |
412 | ||
413 | port_no = strtol(cport, 0, 0); /* string must be null terminated */ | |
414 | ||
415 | for (i = 0; i < NR_QUEUE; i++) { | |
416 | rte_spinlock_init(&netdev->tx_q[i].tx_lock); | |
417 | } | |
418 | ||
419 | ovs_mutex_init(&netdev->mutex); | |
420 | ||
421 | ovs_mutex_lock(&netdev->mutex); | |
422 | netdev->flags = 0; | |
423 | ||
424 | netdev->mtu = ETHER_MTU; | |
425 | netdev->max_packet_len = MTU_TO_MAX_LEN(netdev->mtu); | |
426 | ||
427 | /* TODO: need to discover device node at run time. */ | |
428 | netdev->socket_id = SOCKET0; | |
429 | netdev->port_id = port_no; | |
430 | ||
431 | netdev->dpdk_mp = dpdk_mp_get(netdev->socket_id, netdev->mtu); | |
432 | if (!netdev->dpdk_mp) { | |
433 | err = ENOMEM; | |
434 | goto unlock_dev; | |
435 | } | |
436 | ||
437 | err = dpdk_eth_dev_init(netdev); | |
438 | if (err) { | |
439 | goto unlock_dev; | |
440 | } | |
441 | netdev_->n_rxq = NR_QUEUE; | |
442 | ||
443 | list_push_back(&dpdk_list, &netdev->list_node); | |
444 | ||
445 | unlock_dev: | |
446 | ovs_mutex_unlock(&netdev->mutex); | |
447 | unlock_dpdk: | |
448 | ovs_mutex_unlock(&dpdk_mutex); | |
449 | return err; | |
450 | } | |
451 | ||
452 | static void | |
453 | netdev_dpdk_destruct(struct netdev *netdev_) | |
454 | { | |
455 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
456 | ||
457 | ovs_mutex_lock(&dev->mutex); | |
458 | rte_eth_dev_stop(dev->port_id); | |
459 | ovs_mutex_unlock(&dev->mutex); | |
460 | ||
461 | ovs_mutex_lock(&dpdk_mutex); | |
462 | list_remove(&dev->list_node); | |
463 | dpdk_mp_put(dev->dpdk_mp); | |
464 | ovs_mutex_unlock(&dpdk_mutex); | |
465 | ||
466 | ovs_mutex_destroy(&dev->mutex); | |
467 | } | |
468 | ||
469 | static void | |
470 | netdev_dpdk_dealloc(struct netdev *netdev_) | |
471 | { | |
472 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
473 | ||
474 | rte_free(netdev); | |
475 | } | |
476 | ||
477 | static int | |
478 | netdev_dpdk_get_config(const struct netdev *netdev_, struct smap *args) | |
479 | { | |
480 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
481 | ||
482 | ovs_mutex_lock(&dev->mutex); | |
483 | ||
484 | /* TODO: Allow to configure number of queues. */ | |
485 | smap_add_format(args, "configured_rx_queues", "%u", netdev_->n_rxq); | |
486 | smap_add_format(args, "configured_tx_queues", "%u", netdev_->n_rxq); | |
487 | ovs_mutex_unlock(&dev->mutex); | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
492 | static struct netdev_rxq * | |
493 | netdev_dpdk_rxq_alloc(void) | |
494 | { | |
495 | struct netdev_rxq_dpdk *rx = dpdk_rte_mzalloc(sizeof *rx); | |
496 | ||
497 | return &rx->up; | |
498 | } | |
499 | ||
500 | static struct netdev_rxq_dpdk * | |
501 | netdev_rxq_dpdk_cast(const struct netdev_rxq *rx) | |
502 | { | |
503 | return CONTAINER_OF(rx, struct netdev_rxq_dpdk, up); | |
504 | } | |
505 | ||
506 | static int | |
507 | netdev_dpdk_rxq_construct(struct netdev_rxq *rxq_) | |
508 | { | |
509 | struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_); | |
510 | struct netdev_dpdk *netdev = netdev_dpdk_cast(rx->up.netdev); | |
511 | ||
512 | ovs_mutex_lock(&netdev->mutex); | |
513 | rx->port_id = netdev->port_id; | |
514 | ovs_mutex_unlock(&netdev->mutex); | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
519 | static void | |
520 | netdev_dpdk_rxq_destruct(struct netdev_rxq *rxq_ OVS_UNUSED) | |
521 | { | |
522 | } | |
523 | ||
524 | static void | |
525 | netdev_dpdk_rxq_dealloc(struct netdev_rxq *rxq_) | |
526 | { | |
527 | struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_); | |
528 | ||
529 | rte_free(rx); | |
530 | } | |
531 | ||
532 | inline static void | |
533 | dpdk_queue_flush(struct netdev_dpdk *dev, int qid) | |
534 | { | |
535 | struct dpdk_tx_queue *txq = &dev->tx_q[qid]; | |
536 | uint32_t nb_tx; | |
537 | ||
538 | if (txq->count == 0) { | |
539 | return; | |
540 | } | |
541 | rte_spinlock_lock(&txq->tx_lock); | |
542 | nb_tx = rte_eth_tx_burst(dev->port_id, qid, txq->burst_pkts, txq->count); | |
543 | if (nb_tx != txq->count) { | |
544 | /* free buffers if we couldn't transmit packets */ | |
545 | rte_mempool_put_bulk(dev->dpdk_mp->mp, | |
546 | (void **) &txq->burst_pkts[nb_tx], | |
547 | (txq->count - nb_tx)); | |
548 | } | |
549 | txq->count = 0; | |
550 | rte_spinlock_unlock(&txq->tx_lock); | |
551 | } | |
552 | ||
553 | inline static struct ofpbuf * | |
554 | build_ofpbuf(struct rte_mbuf *pkt) | |
555 | { | |
556 | struct ofpbuf *b; | |
557 | ||
558 | b = ofpbuf_new(0); | |
559 | b->private_p = pkt; | |
560 | ||
1f317cb5 PS |
561 | ofpbuf_set_data(b, pkt->pkt.data); |
562 | ofpbuf_set_base(b, (char *)ofpbuf_data(b) - DP_NETDEV_HEADROOM - VLAN_ETH_HEADER_LEN); | |
563 | b->allocated = pkt->buf_len; | |
564 | ofpbuf_set_size(b, rte_pktmbuf_data_len(pkt)); | |
8a9562d2 | 565 | b->source = OFPBUF_DPDK; |
8a9562d2 PS |
566 | |
567 | dp_packet_pad(b); | |
568 | ||
569 | return b; | |
570 | } | |
571 | ||
572 | static int | |
573 | netdev_dpdk_rxq_recv(struct netdev_rxq *rxq_, struct ofpbuf **packet, int *c) | |
574 | { | |
575 | struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_); | |
576 | struct netdev *netdev = rx->up.netdev; | |
577 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
578 | struct rte_mbuf *burst_pkts[MAX_RX_QUEUE_LEN]; | |
579 | int nb_rx; | |
580 | int i; | |
581 | ||
582 | dpdk_queue_flush(dev, rxq_->queue_id); | |
583 | ||
584 | nb_rx = rte_eth_rx_burst(rx->port_id, rxq_->queue_id, | |
585 | burst_pkts, MAX_RX_QUEUE_LEN); | |
586 | if (!nb_rx) { | |
587 | return EAGAIN; | |
588 | } | |
589 | ||
590 | for (i = 0; i < nb_rx; i++) { | |
591 | packet[i] = build_ofpbuf(burst_pkts[i]); | |
592 | } | |
593 | ||
594 | *c = nb_rx; | |
595 | ||
596 | return 0; | |
597 | } | |
598 | ||
599 | inline static void | |
600 | dpdk_queue_pkt(struct netdev_dpdk *dev, int qid, | |
601 | struct rte_mbuf *pkt) | |
602 | { | |
603 | struct dpdk_tx_queue *txq = &dev->tx_q[qid]; | |
604 | uint64_t diff_tsc; | |
605 | uint64_t cur_tsc; | |
606 | uint32_t nb_tx; | |
607 | ||
608 | rte_spinlock_lock(&txq->tx_lock); | |
609 | txq->burst_pkts[txq->count++] = pkt; | |
610 | if (txq->count == MAX_TX_QUEUE_LEN) { | |
611 | goto flush; | |
612 | } | |
613 | cur_tsc = rte_get_timer_cycles(); | |
614 | if (txq->count == 1) { | |
615 | txq->tsc = cur_tsc; | |
616 | } | |
617 | diff_tsc = cur_tsc - txq->tsc; | |
618 | if (diff_tsc >= DRAIN_TSC) { | |
619 | goto flush; | |
620 | } | |
621 | rte_spinlock_unlock(&txq->tx_lock); | |
622 | return; | |
623 | ||
624 | flush: | |
625 | nb_tx = rte_eth_tx_burst(dev->port_id, qid, txq->burst_pkts, txq->count); | |
626 | if (nb_tx != txq->count) { | |
627 | /* free buffers if we couldn't transmit packets */ | |
628 | rte_mempool_put_bulk(dev->dpdk_mp->mp, | |
629 | (void **) &txq->burst_pkts[nb_tx], | |
630 | (txq->count - nb_tx)); | |
631 | } | |
632 | txq->count = 0; | |
633 | rte_spinlock_unlock(&txq->tx_lock); | |
634 | } | |
635 | ||
636 | /* Tx function. Transmit packets indefinitely */ | |
637 | static void | |
638 | dpdk_do_tx_copy(struct netdev *netdev, char *buf, int size) | |
639 | { | |
640 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
641 | struct rte_mbuf *pkt; | |
642 | ||
643 | pkt = rte_pktmbuf_alloc(dev->dpdk_mp->mp); | |
644 | if (!pkt) { | |
645 | ovs_mutex_lock(&dev->mutex); | |
646 | dev->stats.tx_dropped++; | |
647 | ovs_mutex_unlock(&dev->mutex); | |
648 | return; | |
649 | } | |
650 | ||
651 | /* We have to do a copy for now */ | |
652 | memcpy(pkt->pkt.data, buf, size); | |
653 | ||
654 | rte_pktmbuf_data_len(pkt) = size; | |
655 | rte_pktmbuf_pkt_len(pkt) = size; | |
656 | ||
657 | dpdk_queue_pkt(dev, NON_PMD_THREAD_TX_QUEUE, pkt); | |
658 | dpdk_queue_flush(dev, NON_PMD_THREAD_TX_QUEUE); | |
659 | } | |
660 | ||
661 | static int | |
662 | netdev_dpdk_send(struct netdev *netdev, | |
663 | struct ofpbuf *ofpbuf, bool may_steal) | |
664 | { | |
665 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
666 | int ret; | |
667 | ||
1f317cb5 | 668 | if (ofpbuf_size(ofpbuf) > dev->max_packet_len) { |
8a9562d2 | 669 | VLOG_WARN_RL(&rl, "Too big size %d max_packet_len %d", |
1f317cb5 | 670 | (int)ofpbuf_size(ofpbuf) , dev->max_packet_len); |
8a9562d2 PS |
671 | |
672 | ovs_mutex_lock(&dev->mutex); | |
673 | dev->stats.tx_dropped++; | |
674 | ovs_mutex_unlock(&dev->mutex); | |
675 | ||
676 | ret = E2BIG; | |
677 | goto out; | |
678 | } | |
679 | ||
680 | rte_prefetch0(&ofpbuf->private_p); | |
681 | if (!may_steal || | |
682 | !ofpbuf->private_p || ofpbuf->source != OFPBUF_DPDK) { | |
1f317cb5 | 683 | dpdk_do_tx_copy(netdev, (char *) ofpbuf_data(ofpbuf), ofpbuf_size(ofpbuf)); |
8a9562d2 PS |
684 | } else { |
685 | struct rte_mbuf *pkt; | |
686 | int qid; | |
687 | ||
688 | pkt = ofpbuf->private_p; | |
689 | ofpbuf->private_p = NULL; | |
1f317cb5 PS |
690 | rte_pktmbuf_data_len(pkt) = ofpbuf_size(ofpbuf); |
691 | rte_pktmbuf_pkt_len(pkt) = ofpbuf_size(ofpbuf); | |
8a9562d2 PS |
692 | |
693 | qid = rte_lcore_id() % NR_QUEUE; | |
694 | ||
695 | dpdk_queue_pkt(dev, qid, pkt); | |
696 | ||
697 | ofpbuf->private_p = NULL; | |
698 | } | |
699 | ret = 0; | |
700 | ||
701 | out: | |
702 | if (may_steal) { | |
703 | ofpbuf_delete(ofpbuf); | |
704 | } | |
705 | ||
706 | return ret; | |
707 | } | |
708 | ||
709 | static int | |
710 | netdev_dpdk_set_etheraddr(struct netdev *netdev, | |
711 | const uint8_t mac[ETH_ADDR_LEN]) | |
712 | { | |
713 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
714 | ||
715 | ovs_mutex_lock(&dev->mutex); | |
716 | if (!eth_addr_equals(dev->hwaddr, mac)) { | |
717 | memcpy(dev->hwaddr, mac, ETH_ADDR_LEN); | |
718 | } | |
719 | ovs_mutex_unlock(&dev->mutex); | |
720 | ||
721 | return 0; | |
722 | } | |
723 | ||
724 | static int | |
725 | netdev_dpdk_get_etheraddr(const struct netdev *netdev, | |
726 | uint8_t mac[ETH_ADDR_LEN]) | |
727 | { | |
728 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
729 | ||
730 | ovs_mutex_lock(&dev->mutex); | |
731 | memcpy(mac, dev->hwaddr, ETH_ADDR_LEN); | |
732 | ovs_mutex_unlock(&dev->mutex); | |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | static int | |
738 | netdev_dpdk_get_mtu(const struct netdev *netdev, int *mtup) | |
739 | { | |
740 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
741 | ||
742 | ovs_mutex_lock(&dev->mutex); | |
743 | *mtup = dev->mtu; | |
744 | ovs_mutex_unlock(&dev->mutex); | |
745 | ||
746 | return 0; | |
747 | } | |
748 | ||
749 | static int | |
750 | netdev_dpdk_set_mtu(const struct netdev *netdev, int mtu) | |
751 | { | |
752 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
753 | int old_mtu, err; | |
754 | struct dpdk_mp *old_mp; | |
755 | struct dpdk_mp *mp; | |
756 | ||
757 | ovs_mutex_lock(&dpdk_mutex); | |
758 | ovs_mutex_lock(&dev->mutex); | |
759 | if (dev->mtu == mtu) { | |
760 | err = 0; | |
761 | goto out; | |
762 | } | |
763 | ||
764 | mp = dpdk_mp_get(dev->socket_id, dev->mtu); | |
765 | if (!mp) { | |
766 | err = ENOMEM; | |
767 | goto out; | |
768 | } | |
769 | ||
770 | rte_eth_dev_stop(dev->port_id); | |
771 | ||
772 | old_mtu = dev->mtu; | |
773 | old_mp = dev->dpdk_mp; | |
774 | dev->dpdk_mp = mp; | |
775 | dev->mtu = mtu; | |
776 | dev->max_packet_len = MTU_TO_MAX_LEN(dev->mtu); | |
777 | ||
778 | err = dpdk_eth_dev_init(dev); | |
779 | if (err) { | |
780 | ||
781 | dpdk_mp_put(mp); | |
782 | dev->mtu = old_mtu; | |
783 | dev->dpdk_mp = old_mp; | |
784 | dev->max_packet_len = MTU_TO_MAX_LEN(dev->mtu); | |
785 | dpdk_eth_dev_init(dev); | |
786 | goto out; | |
787 | } | |
788 | ||
789 | dpdk_mp_put(old_mp); | |
790 | out: | |
791 | ovs_mutex_unlock(&dev->mutex); | |
792 | ovs_mutex_unlock(&dpdk_mutex); | |
793 | return err; | |
794 | } | |
795 | ||
796 | static int | |
797 | netdev_dpdk_get_carrier(const struct netdev *netdev_, bool *carrier); | |
798 | ||
799 | static int | |
800 | netdev_dpdk_get_stats(const struct netdev *netdev, struct netdev_stats *stats) | |
801 | { | |
802 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
803 | struct rte_eth_stats rte_stats; | |
804 | bool gg; | |
805 | ||
806 | netdev_dpdk_get_carrier(netdev, &gg); | |
807 | ovs_mutex_lock(&dev->mutex); | |
808 | rte_eth_stats_get(dev->port_id, &rte_stats); | |
809 | ||
810 | *stats = dev->stats_offset; | |
811 | ||
812 | stats->rx_packets += rte_stats.ipackets; | |
813 | stats->tx_packets += rte_stats.opackets; | |
814 | stats->rx_bytes += rte_stats.ibytes; | |
815 | stats->tx_bytes += rte_stats.obytes; | |
816 | stats->rx_errors += rte_stats.ierrors; | |
817 | stats->tx_errors += rte_stats.oerrors; | |
818 | stats->multicast += rte_stats.imcasts; | |
819 | ||
820 | stats->tx_dropped += dev->stats.tx_dropped; | |
821 | ovs_mutex_unlock(&dev->mutex); | |
822 | ||
823 | return 0; | |
824 | } | |
825 | ||
826 | static int | |
827 | netdev_dpdk_set_stats(struct netdev *netdev, const struct netdev_stats *stats) | |
828 | { | |
829 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
830 | ||
831 | ovs_mutex_lock(&dev->mutex); | |
832 | dev->stats_offset = *stats; | |
833 | ovs_mutex_unlock(&dev->mutex); | |
834 | ||
835 | return 0; | |
836 | } | |
837 | ||
838 | static int | |
839 | netdev_dpdk_get_features(const struct netdev *netdev_, | |
840 | enum netdev_features *current, | |
841 | enum netdev_features *advertised OVS_UNUSED, | |
842 | enum netdev_features *supported OVS_UNUSED, | |
843 | enum netdev_features *peer OVS_UNUSED) | |
844 | { | |
845 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
846 | struct rte_eth_link link; | |
847 | ||
848 | ovs_mutex_lock(&dev->mutex); | |
849 | link = dev->link; | |
850 | ovs_mutex_unlock(&dev->mutex); | |
851 | ||
852 | if (link.link_duplex == ETH_LINK_AUTONEG_DUPLEX) { | |
853 | if (link.link_speed == ETH_LINK_SPEED_AUTONEG) { | |
854 | *current = NETDEV_F_AUTONEG; | |
855 | } | |
856 | } else if (link.link_duplex == ETH_LINK_HALF_DUPLEX) { | |
857 | if (link.link_speed == ETH_LINK_SPEED_10) { | |
858 | *current = NETDEV_F_10MB_HD; | |
859 | } | |
860 | if (link.link_speed == ETH_LINK_SPEED_100) { | |
861 | *current = NETDEV_F_100MB_HD; | |
862 | } | |
863 | if (link.link_speed == ETH_LINK_SPEED_1000) { | |
864 | *current = NETDEV_F_1GB_HD; | |
865 | } | |
866 | } else if (link.link_duplex == ETH_LINK_FULL_DUPLEX) { | |
867 | if (link.link_speed == ETH_LINK_SPEED_10) { | |
868 | *current = NETDEV_F_10MB_FD; | |
869 | } | |
870 | if (link.link_speed == ETH_LINK_SPEED_100) { | |
871 | *current = NETDEV_F_100MB_FD; | |
872 | } | |
873 | if (link.link_speed == ETH_LINK_SPEED_1000) { | |
874 | *current = NETDEV_F_1GB_FD; | |
875 | } | |
876 | if (link.link_speed == ETH_LINK_SPEED_10000) { | |
877 | *current = NETDEV_F_10GB_FD; | |
878 | } | |
879 | } | |
880 | ||
881 | return 0; | |
882 | } | |
883 | ||
884 | static int | |
885 | netdev_dpdk_get_ifindex(const struct netdev *netdev) | |
886 | { | |
887 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
888 | int ifindex; | |
889 | ||
890 | ovs_mutex_lock(&dev->mutex); | |
891 | ifindex = dev->port_id; | |
892 | ovs_mutex_unlock(&dev->mutex); | |
893 | ||
894 | return ifindex; | |
895 | } | |
896 | ||
897 | static int | |
898 | netdev_dpdk_get_carrier(const struct netdev *netdev_, bool *carrier) | |
899 | { | |
900 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
901 | ||
902 | ovs_mutex_lock(&dev->mutex); | |
903 | check_link_status(dev); | |
904 | *carrier = dev->link.link_status; | |
905 | ovs_mutex_unlock(&dev->mutex); | |
906 | ||
907 | return 0; | |
908 | } | |
909 | ||
910 | static long long int | |
911 | netdev_dpdk_get_carrier_resets(const struct netdev *netdev_) | |
912 | { | |
913 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
914 | long long int carrier_resets; | |
915 | ||
916 | ovs_mutex_lock(&dev->mutex); | |
917 | carrier_resets = dev->link_reset_cnt; | |
918 | ovs_mutex_unlock(&dev->mutex); | |
919 | ||
920 | return carrier_resets; | |
921 | } | |
922 | ||
923 | static int | |
924 | netdev_dpdk_set_miimon(struct netdev *netdev_ OVS_UNUSED, | |
925 | long long int interval OVS_UNUSED) | |
926 | { | |
927 | return 0; | |
928 | } | |
929 | ||
930 | static int | |
931 | netdev_dpdk_update_flags__(struct netdev_dpdk *dev, | |
932 | enum netdev_flags off, enum netdev_flags on, | |
933 | enum netdev_flags *old_flagsp) | |
934 | OVS_REQUIRES(dev->mutex) | |
935 | { | |
936 | int err; | |
937 | ||
938 | if ((off | on) & ~(NETDEV_UP | NETDEV_PROMISC)) { | |
939 | return EINVAL; | |
940 | } | |
941 | ||
942 | *old_flagsp = dev->flags; | |
943 | dev->flags |= on; | |
944 | dev->flags &= ~off; | |
945 | ||
946 | if (dev->flags == *old_flagsp) { | |
947 | return 0; | |
948 | } | |
949 | ||
950 | if (dev->flags & NETDEV_UP) { | |
951 | err = rte_eth_dev_start(dev->port_id); | |
952 | if (err) | |
953 | return err; | |
954 | } | |
955 | ||
956 | if (dev->flags & NETDEV_PROMISC) { | |
957 | rte_eth_promiscuous_enable(dev->port_id); | |
958 | } | |
959 | ||
960 | if (!(dev->flags & NETDEV_UP)) { | |
961 | rte_eth_dev_stop(dev->port_id); | |
962 | } | |
963 | ||
964 | return 0; | |
965 | } | |
966 | ||
967 | static int | |
968 | netdev_dpdk_update_flags(struct netdev *netdev_, | |
969 | enum netdev_flags off, enum netdev_flags on, | |
970 | enum netdev_flags *old_flagsp) | |
971 | { | |
972 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
973 | int error; | |
974 | ||
975 | ovs_mutex_lock(&netdev->mutex); | |
976 | error = netdev_dpdk_update_flags__(netdev, off, on, old_flagsp); | |
977 | ovs_mutex_unlock(&netdev->mutex); | |
978 | ||
979 | return error; | |
980 | } | |
981 | ||
982 | static int | |
983 | netdev_dpdk_get_status(const struct netdev *netdev_, struct smap *args) | |
984 | { | |
985 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
986 | struct rte_eth_dev_info dev_info; | |
987 | ||
988 | if (dev->port_id <= 0) | |
989 | return ENODEV; | |
990 | ||
991 | ovs_mutex_lock(&dev->mutex); | |
992 | rte_eth_dev_info_get(dev->port_id, &dev_info); | |
993 | ovs_mutex_unlock(&dev->mutex); | |
994 | ||
995 | smap_add_format(args, "driver_name", "%s", dev_info.driver_name); | |
996 | ||
997 | smap_add_format(args, "numa_id", "%d", rte_eth_dev_socket_id(dev->port_id)); | |
998 | smap_add_format(args, "driver_name", "%s", dev_info.driver_name); | |
999 | smap_add_format(args, "min_rx_bufsize", "%u", dev_info.min_rx_bufsize); | |
1000 | smap_add_format(args, "max_rx_pktlen", "%u", dev_info.max_rx_pktlen); | |
1001 | smap_add_format(args, "max_rx_queues", "%u", dev_info.max_rx_queues); | |
1002 | smap_add_format(args, "max_tx_queues", "%u", dev_info.max_tx_queues); | |
1003 | smap_add_format(args, "max_mac_addrs", "%u", dev_info.max_mac_addrs); | |
1004 | smap_add_format(args, "max_hash_mac_addrs", "%u", dev_info.max_hash_mac_addrs); | |
1005 | smap_add_format(args, "max_vfs", "%u", dev_info.max_vfs); | |
1006 | smap_add_format(args, "max_vmdq_pools", "%u", dev_info.max_vmdq_pools); | |
1007 | ||
1008 | smap_add_format(args, "pci-vendor_id", "0x%u", dev_info.pci_dev->id.vendor_id); | |
1009 | smap_add_format(args, "pci-device_id", "0x%x", dev_info.pci_dev->id.device_id); | |
1010 | ||
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | static void | |
1015 | netdev_dpdk_set_admin_state__(struct netdev_dpdk *dev, bool admin_state) | |
1016 | OVS_REQUIRES(dev->mutex) | |
1017 | { | |
1018 | enum netdev_flags old_flags; | |
1019 | ||
1020 | if (admin_state) { | |
1021 | netdev_dpdk_update_flags__(dev, 0, NETDEV_UP, &old_flags); | |
1022 | } else { | |
1023 | netdev_dpdk_update_flags__(dev, NETDEV_UP, 0, &old_flags); | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | static void | |
1028 | netdev_dpdk_set_admin_state(struct unixctl_conn *conn, int argc, | |
1029 | const char *argv[], void *aux OVS_UNUSED) | |
1030 | { | |
1031 | bool up; | |
1032 | ||
1033 | if (!strcasecmp(argv[argc - 1], "up")) { | |
1034 | up = true; | |
1035 | } else if ( !strcasecmp(argv[argc - 1], "down")) { | |
1036 | up = false; | |
1037 | } else { | |
1038 | unixctl_command_reply_error(conn, "Invalid Admin State"); | |
1039 | return; | |
1040 | } | |
1041 | ||
1042 | if (argc > 2) { | |
1043 | struct netdev *netdev = netdev_from_name(argv[1]); | |
1044 | if (netdev && is_dpdk_class(netdev->netdev_class)) { | |
1045 | struct netdev_dpdk *dpdk_dev = netdev_dpdk_cast(netdev); | |
1046 | ||
1047 | ovs_mutex_lock(&dpdk_dev->mutex); | |
1048 | netdev_dpdk_set_admin_state__(dpdk_dev, up); | |
1049 | ovs_mutex_unlock(&dpdk_dev->mutex); | |
1050 | ||
1051 | netdev_close(netdev); | |
1052 | } else { | |
1053 | unixctl_command_reply_error(conn, "Not a DPDK Interface"); | |
1054 | netdev_close(netdev); | |
1055 | return; | |
1056 | } | |
1057 | } else { | |
1058 | struct netdev_dpdk *netdev; | |
1059 | ||
1060 | ovs_mutex_lock(&dpdk_mutex); | |
1061 | LIST_FOR_EACH (netdev, list_node, &dpdk_list) { | |
1062 | ovs_mutex_lock(&netdev->mutex); | |
1063 | netdev_dpdk_set_admin_state__(netdev, up); | |
1064 | ovs_mutex_unlock(&netdev->mutex); | |
1065 | } | |
1066 | ovs_mutex_unlock(&dpdk_mutex); | |
1067 | } | |
1068 | unixctl_command_reply(conn, "OK"); | |
1069 | } | |
1070 | ||
1071 | static int | |
1072 | dpdk_class_init(void) | |
1073 | { | |
1074 | int result; | |
1075 | ||
1076 | if (rte_eal_init_ret) { | |
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | result = rte_pmd_init_all(); | |
1081 | if (result) { | |
1082 | VLOG_ERR("Cannot init PMD"); | |
1083 | return result; | |
1084 | } | |
1085 | ||
1086 | result = rte_eal_pci_probe(); | |
1087 | if (result) { | |
1088 | VLOG_ERR("Cannot probe PCI"); | |
1089 | return result; | |
1090 | } | |
1091 | ||
1092 | if (rte_eth_dev_count() < 1) { | |
1093 | VLOG_ERR("No Ethernet devices found. Try assigning ports to UIO."); | |
1094 | } | |
1095 | ||
1096 | VLOG_INFO("Ethernet Device Count: %d", (int)rte_eth_dev_count()); | |
1097 | ||
1098 | list_init(&dpdk_list); | |
1099 | list_init(&dpdk_mp_list); | |
1100 | ||
1101 | unixctl_command_register("netdev-dpdk/set-admin-state", | |
1102 | "[netdev] up|down", 1, 2, | |
1103 | netdev_dpdk_set_admin_state, NULL); | |
1104 | ||
1105 | xpthread_create(&watchdog_thread, NULL, dpdk_watchdog, NULL); | |
1106 | return 0; | |
1107 | } | |
1108 | ||
1109 | static struct netdev_class netdev_dpdk_class = { | |
1110 | "dpdk", | |
1111 | dpdk_class_init, /* init */ | |
1112 | NULL, /* netdev_dpdk_run */ | |
1113 | NULL, /* netdev_dpdk_wait */ | |
1114 | ||
1115 | netdev_dpdk_alloc, | |
1116 | netdev_dpdk_construct, | |
1117 | netdev_dpdk_destruct, | |
1118 | netdev_dpdk_dealloc, | |
1119 | netdev_dpdk_get_config, | |
1120 | NULL, /* netdev_dpdk_set_config */ | |
1121 | NULL, /* get_tunnel_config */ | |
1122 | ||
1123 | netdev_dpdk_send, /* send */ | |
1124 | NULL, /* send_wait */ | |
1125 | ||
1126 | netdev_dpdk_set_etheraddr, | |
1127 | netdev_dpdk_get_etheraddr, | |
1128 | netdev_dpdk_get_mtu, | |
1129 | netdev_dpdk_set_mtu, | |
1130 | netdev_dpdk_get_ifindex, | |
1131 | netdev_dpdk_get_carrier, | |
1132 | netdev_dpdk_get_carrier_resets, | |
1133 | netdev_dpdk_set_miimon, | |
1134 | netdev_dpdk_get_stats, | |
1135 | netdev_dpdk_set_stats, | |
1136 | netdev_dpdk_get_features, | |
1137 | NULL, /* set_advertisements */ | |
1138 | ||
1139 | NULL, /* set_policing */ | |
1140 | NULL, /* get_qos_types */ | |
1141 | NULL, /* get_qos_capabilities */ | |
1142 | NULL, /* get_qos */ | |
1143 | NULL, /* set_qos */ | |
1144 | NULL, /* get_queue */ | |
1145 | NULL, /* set_queue */ | |
1146 | NULL, /* delete_queue */ | |
1147 | NULL, /* get_queue_stats */ | |
1148 | NULL, /* queue_dump_start */ | |
1149 | NULL, /* queue_dump_next */ | |
1150 | NULL, /* queue_dump_done */ | |
1151 | NULL, /* dump_queue_stats */ | |
1152 | ||
1153 | NULL, /* get_in4 */ | |
1154 | NULL, /* set_in4 */ | |
1155 | NULL, /* get_in6 */ | |
1156 | NULL, /* add_router */ | |
1157 | NULL, /* get_next_hop */ | |
1158 | netdev_dpdk_get_status, | |
1159 | NULL, /* arp_lookup */ | |
1160 | ||
1161 | netdev_dpdk_update_flags, | |
1162 | ||
1163 | netdev_dpdk_rxq_alloc, | |
1164 | netdev_dpdk_rxq_construct, | |
1165 | netdev_dpdk_rxq_destruct, | |
1166 | netdev_dpdk_rxq_dealloc, | |
1167 | netdev_dpdk_rxq_recv, | |
1168 | NULL, /* rxq_wait */ | |
1169 | NULL, /* rxq_drain */ | |
1170 | }; | |
1171 | ||
1172 | int | |
1173 | dpdk_init(int argc, char **argv) | |
1174 | { | |
1175 | int result; | |
1176 | ||
1177 | if (strcmp(argv[1], "--dpdk")) | |
1178 | return 0; | |
1179 | ||
1180 | argc--; | |
1181 | argv++; | |
1182 | ||
1183 | /* Make sure things are initialized ... */ | |
1184 | result = rte_eal_init(argc, argv); | |
1185 | if (result < 0) | |
1186 | ovs_abort(result, "Cannot init EAL\n"); | |
1187 | ||
1188 | rte_memzone_dump(); | |
1189 | rte_eal_init_ret = 0; | |
1190 | ||
1191 | return result; | |
1192 | } | |
1193 | ||
1194 | void | |
1195 | netdev_dpdk_register(void) | |
1196 | { | |
1197 | netdev_register_provider(&netdev_dpdk_class); | |
1198 | } | |
8617afff PS |
1199 | |
1200 | int | |
1201 | pmd_thread_setaffinity_cpu(int cpu) | |
1202 | { | |
1203 | cpu_set_t cpuset; | |
1204 | int err; | |
1205 | ||
1206 | CPU_ZERO(&cpuset); | |
1207 | CPU_SET(cpu, &cpuset); | |
1208 | err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset); | |
1209 | if (err) { | |
1210 | VLOG_ERR("Thread affinity error %d",err); | |
1211 | return err; | |
1212 | } | |
1213 | RTE_PER_LCORE(_lcore_id) = cpu; | |
1214 | ||
1215 | return 0; | |
1216 | } |