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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 | ||
e14deea0 | 31 | #include "dp-packet.h" |
8a9562d2 PS |
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" | |
94143fc4 | 39 | #include "ovs-numa.h" |
8a9562d2 PS |
40 | #include "ovs-thread.h" |
41 | #include "ovs-rcu.h" | |
42 | #include "packets.h" | |
43 | #include "shash.h" | |
8a9562d2 PS |
44 | #include "sset.h" |
45 | #include "unaligned.h" | |
46 | #include "timeval.h" | |
47 | #include "unixctl.h" | |
e6211adc | 48 | #include "openvswitch/vlog.h" |
8a9562d2 | 49 | |
b8e57534 MK |
50 | #include "rte_config.h" |
51 | #include "rte_mbuf.h" | |
58397e6c | 52 | #include "rte_virtio_net.h" |
b8e57534 | 53 | |
8a9562d2 PS |
54 | VLOG_DEFINE_THIS_MODULE(dpdk); |
55 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20); | |
56 | ||
57 | #define DPDK_PORT_WATCHDOG_INTERVAL 5 | |
58 | ||
59 | #define OVS_CACHE_LINE_SIZE CACHE_LINE_SIZE | |
60 | #define OVS_VPORT_DPDK "ovs_dpdk" | |
61 | ||
62 | /* | |
63 | * need to reserve tons of extra space in the mbufs so we can align the | |
64 | * DMA addresses to 4KB. | |
65 | */ | |
66 | ||
67 | #define MTU_TO_MAX_LEN(mtu) ((mtu) + ETHER_HDR_LEN + ETHER_CRC_LEN) | |
68 | #define MBUF_SIZE(mtu) (MTU_TO_MAX_LEN(mtu) + (512) + \ | |
69 | sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM) | |
70 | ||
da79ce2b DDP |
71 | /* Max and min number of packets in the mempool. OVS tries to allocate a |
72 | * mempool with MAX_NB_MBUF: if this fails (because the system doesn't have | |
73 | * enough hugepages) we keep halving the number until the allocation succeeds | |
74 | * or we reach MIN_NB_MBUF */ | |
75 | ||
76 | #define MAX_NB_MBUF (4096 * 64) | |
77 | #define MIN_NB_MBUF (4096 * 4) | |
78 | #define MP_CACHE_SZ RTE_MEMPOOL_CACHE_MAX_SIZE | |
79 | ||
80 | /* MAX_NB_MBUF can be divided by 2 many times, until MIN_NB_MBUF */ | |
81 | BUILD_ASSERT_DECL(MAX_NB_MBUF % ROUND_DOWN_POW2(MAX_NB_MBUF/MIN_NB_MBUF) == 0); | |
82 | ||
83 | /* The smallest possible NB_MBUF that we're going to try should be a multiple | |
84 | * of MP_CACHE_SZ. This is advised by DPDK documentation. */ | |
85 | BUILD_ASSERT_DECL((MAX_NB_MBUF / ROUND_DOWN_POW2(MAX_NB_MBUF/MIN_NB_MBUF)) | |
86 | % MP_CACHE_SZ == 0); | |
87 | ||
8a9562d2 PS |
88 | #define SOCKET0 0 |
89 | ||
79f5354c PM |
90 | #define NIC_PORT_RX_Q_SIZE 2048 /* Size of Physical NIC RX Queue, Max (n+32<=4096)*/ |
91 | #define NIC_PORT_TX_Q_SIZE 2048 /* Size of Physical NIC TX Queue, Max (n+32<=4096)*/ | |
92 | ||
645b8934 | 93 | /* XXX: Needs per NIC value for these constants. */ |
8a9562d2 PS |
94 | #define RX_PTHRESH 32 /* Default values of RX prefetch threshold reg. */ |
95 | #define RX_HTHRESH 32 /* Default values of RX host threshold reg. */ | |
96 | #define RX_WTHRESH 16 /* Default values of RX write-back threshold reg. */ | |
97 | ||
98 | #define TX_PTHRESH 36 /* Default values of TX prefetch threshold reg. */ | |
99 | #define TX_HTHRESH 0 /* Default values of TX host threshold reg. */ | |
100 | #define TX_WTHRESH 0 /* Default values of TX write-back threshold reg. */ | |
101 | ||
58397e6c KT |
102 | #define MAX_PKT_BURST 32 /* Max burst size for RX/TX */ |
103 | ||
104 | /* Character device cuse_dev_name. */ | |
105 | char *cuse_dev_name = NULL; | |
106 | ||
8a9562d2 | 107 | static const struct rte_eth_conf port_conf = { |
a28ddd11 DDP |
108 | .rxmode = { |
109 | .mq_mode = ETH_MQ_RX_RSS, | |
110 | .split_hdr_size = 0, | |
111 | .header_split = 0, /* Header Split disabled */ | |
112 | .hw_ip_checksum = 0, /* IP checksum offload disabled */ | |
113 | .hw_vlan_filter = 0, /* VLAN filtering disabled */ | |
114 | .jumbo_frame = 0, /* Jumbo Frame Support disabled */ | |
115 | .hw_strip_crc = 0, | |
116 | }, | |
117 | .rx_adv_conf = { | |
118 | .rss_conf = { | |
119 | .rss_key = NULL, | |
61a2647e DDP |
120 | .rss_hf = ETH_RSS_IPV4_TCP | ETH_RSS_IPV4 | ETH_RSS_IPV6 |
121 | | ETH_RSS_IPV4_UDP | ETH_RSS_IPV6_TCP | ETH_RSS_IPV6_UDP, | |
8a9562d2 | 122 | }, |
a28ddd11 DDP |
123 | }, |
124 | .txmode = { | |
125 | .mq_mode = ETH_MQ_TX_NONE, | |
126 | }, | |
8a9562d2 PS |
127 | }; |
128 | ||
129 | static const struct rte_eth_rxconf rx_conf = { | |
a28ddd11 DDP |
130 | .rx_thresh = { |
131 | .pthresh = RX_PTHRESH, | |
132 | .hthresh = RX_HTHRESH, | |
133 | .wthresh = RX_WTHRESH, | |
134 | }, | |
8a9562d2 PS |
135 | }; |
136 | ||
137 | static const struct rte_eth_txconf tx_conf = { | |
a28ddd11 DDP |
138 | .tx_thresh = { |
139 | .pthresh = TX_PTHRESH, | |
140 | .hthresh = TX_HTHRESH, | |
141 | .wthresh = TX_WTHRESH, | |
142 | }, | |
143 | .tx_free_thresh = 0, | |
144 | .tx_rs_thresh = 0, | |
94777510 | 145 | .txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS|ETH_TXQ_FLAGS_NOOFFLOADS, |
8a9562d2 PS |
146 | }; |
147 | ||
3a100265 DDP |
148 | enum { MAX_RX_QUEUE_LEN = 192 }; |
149 | enum { MAX_TX_QUEUE_LEN = 384 }; | |
58f7c37b DDP |
150 | enum { DPDK_RING_SIZE = 256 }; |
151 | BUILD_ASSERT_DECL(IS_POW2(DPDK_RING_SIZE)); | |
8a9562d2 PS |
152 | enum { DRAIN_TSC = 200000ULL }; |
153 | ||
58397e6c KT |
154 | enum dpdk_dev_type { |
155 | DPDK_DEV_ETH = 0, | |
156 | DPDK_DEV_VHOST = 1 | |
157 | }; | |
158 | ||
8a9562d2 PS |
159 | static int rte_eal_init_ret = ENODEV; |
160 | ||
161 | static struct ovs_mutex dpdk_mutex = OVS_MUTEX_INITIALIZER; | |
162 | ||
163 | /* Contains all 'struct dpdk_dev's. */ | |
ca6ba700 | 164 | static struct ovs_list dpdk_list OVS_GUARDED_BY(dpdk_mutex) |
55951e15 | 165 | = OVS_LIST_INITIALIZER(&dpdk_list); |
8a9562d2 | 166 | |
ca6ba700 | 167 | static struct ovs_list dpdk_mp_list OVS_GUARDED_BY(dpdk_mutex) |
55951e15 | 168 | = OVS_LIST_INITIALIZER(&dpdk_mp_list); |
8a9562d2 | 169 | |
db73f716 DDP |
170 | /* This mutex must be used by non pmd threads when allocating or freeing |
171 | * mbufs through mempools. Since dpdk_queue_pkts() and dpdk_queue_flush() may | |
172 | * use mempools, a non pmd thread should hold this mutex while calling them */ | |
173 | struct ovs_mutex nonpmd_mempool_mutex = OVS_MUTEX_INITIALIZER; | |
174 | ||
8a9562d2 PS |
175 | struct dpdk_mp { |
176 | struct rte_mempool *mp; | |
177 | int mtu; | |
178 | int socket_id; | |
179 | int refcount; | |
ca6ba700 | 180 | struct ovs_list list_node OVS_GUARDED_BY(dpdk_mutex); |
8a9562d2 PS |
181 | }; |
182 | ||
5a034064 AW |
183 | /* There should be one 'struct dpdk_tx_queue' created for |
184 | * each cpu core. */ | |
8a9562d2 | 185 | struct dpdk_tx_queue { |
94143fc4 AW |
186 | bool flush_tx; /* Set to true to flush queue everytime */ |
187 | /* pkts are queued. */ | |
8a9562d2 PS |
188 | int count; |
189 | uint64_t tsc; | |
190 | struct rte_mbuf *burst_pkts[MAX_TX_QUEUE_LEN]; | |
191 | }; | |
192 | ||
95fb793a | 193 | /* dpdk has no way to remove dpdk ring ethernet devices |
194 | so we have to keep them around once they've been created | |
195 | */ | |
196 | ||
ca6ba700 | 197 | static struct ovs_list dpdk_ring_list OVS_GUARDED_BY(dpdk_mutex) |
55951e15 | 198 | = OVS_LIST_INITIALIZER(&dpdk_ring_list); |
95fb793a | 199 | |
200 | struct dpdk_ring { | |
201 | /* For the client rings */ | |
202 | struct rte_ring *cring_tx; | |
203 | struct rte_ring *cring_rx; | |
204 | int user_port_id; /* User given port no, parsed from port name */ | |
205 | int eth_port_id; /* ethernet device port id */ | |
ca6ba700 | 206 | struct ovs_list list_node OVS_GUARDED_BY(dpdk_mutex); |
95fb793a | 207 | }; |
208 | ||
8a9562d2 PS |
209 | struct netdev_dpdk { |
210 | struct netdev up; | |
211 | int port_id; | |
212 | int max_packet_len; | |
58397e6c | 213 | enum dpdk_dev_type type; |
8a9562d2 | 214 | |
5a034064 | 215 | struct dpdk_tx_queue *tx_q; |
8a9562d2 PS |
216 | |
217 | struct ovs_mutex mutex OVS_ACQ_AFTER(dpdk_mutex); | |
218 | ||
219 | struct dpdk_mp *dpdk_mp; | |
220 | int mtu; | |
221 | int socket_id; | |
222 | int buf_size; | |
8a9562d2 PS |
223 | struct netdev_stats stats; |
224 | ||
225 | uint8_t hwaddr[ETH_ADDR_LEN]; | |
226 | enum netdev_flags flags; | |
227 | ||
228 | struct rte_eth_link link; | |
229 | int link_reset_cnt; | |
230 | ||
58397e6c KT |
231 | /* virtio-net structure for vhost device */ |
232 | OVSRCU_TYPE(struct virtio_net *) virtio_dev; | |
233 | ||
8a9562d2 | 234 | /* In dpdk_list. */ |
ca6ba700 | 235 | struct ovs_list list_node OVS_GUARDED_BY(dpdk_mutex); |
58397e6c | 236 | rte_spinlock_t txq_lock; |
8a9562d2 PS |
237 | }; |
238 | ||
239 | struct netdev_rxq_dpdk { | |
240 | struct netdev_rxq up; | |
241 | int port_id; | |
242 | }; | |
243 | ||
db73f716 DDP |
244 | static bool thread_is_pmd(void); |
245 | ||
8a9562d2 PS |
246 | static int netdev_dpdk_construct(struct netdev *); |
247 | ||
58397e6c KT |
248 | struct virtio_net * netdev_dpdk_get_virtio(const struct netdev_dpdk *dev); |
249 | ||
8a9562d2 PS |
250 | static bool |
251 | is_dpdk_class(const struct netdev_class *class) | |
252 | { | |
253 | return class->construct == netdev_dpdk_construct; | |
254 | } | |
255 | ||
58397e6c KT |
256 | /* XXX: use dpdk malloc for entire OVS. in fact huge page should be used |
257 | * for all other segments data, bss and text. */ | |
8a9562d2 PS |
258 | |
259 | static void * | |
260 | dpdk_rte_mzalloc(size_t sz) | |
261 | { | |
262 | void *ptr; | |
263 | ||
264 | ptr = rte_zmalloc(OVS_VPORT_DPDK, sz, OVS_CACHE_LINE_SIZE); | |
265 | if (ptr == NULL) { | |
266 | out_of_memory(); | |
267 | } | |
268 | return ptr; | |
269 | } | |
270 | ||
db73f716 DDP |
271 | /* XXX this function should be called only by pmd threads (or by non pmd |
272 | * threads holding the nonpmd_mempool_mutex) */ | |
8a9562d2 | 273 | void |
e14deea0 | 274 | free_dpdk_buf(struct dp_packet *p) |
8a9562d2 | 275 | { |
db73f716 | 276 | struct rte_mbuf *pkt = (struct rte_mbuf *) p; |
8a9562d2 | 277 | |
db73f716 | 278 | rte_pktmbuf_free_seg(pkt); |
8a9562d2 PS |
279 | } |
280 | ||
b3cd9f9d PS |
281 | static void |
282 | __rte_pktmbuf_init(struct rte_mempool *mp, | |
283 | void *opaque_arg OVS_UNUSED, | |
284 | void *_m, | |
285 | unsigned i OVS_UNUSED) | |
286 | { | |
287 | struct rte_mbuf *m = _m; | |
e14deea0 | 288 | uint32_t buf_len = mp->elt_size - sizeof(struct dp_packet); |
b3cd9f9d | 289 | |
e14deea0 | 290 | RTE_MBUF_ASSERT(mp->elt_size >= sizeof(struct dp_packet)); |
b3cd9f9d PS |
291 | |
292 | memset(m, 0, mp->elt_size); | |
293 | ||
294 | /* start of buffer is just after mbuf structure */ | |
e14deea0 | 295 | m->buf_addr = (char *)m + sizeof(struct dp_packet); |
b3cd9f9d | 296 | m->buf_physaddr = rte_mempool_virt2phy(mp, m) + |
e14deea0 | 297 | sizeof(struct dp_packet); |
b3cd9f9d PS |
298 | m->buf_len = (uint16_t)buf_len; |
299 | ||
300 | /* keep some headroom between start of buffer and data */ | |
b8e57534 | 301 | m->data_off = RTE_MIN(RTE_PKTMBUF_HEADROOM, m->buf_len); |
b3cd9f9d PS |
302 | |
303 | /* init some constant fields */ | |
b3cd9f9d | 304 | m->pool = mp; |
b8e57534 MK |
305 | m->nb_segs = 1; |
306 | m->port = 0xff; | |
b3cd9f9d PS |
307 | } |
308 | ||
309 | static void | |
310 | ovs_rte_pktmbuf_init(struct rte_mempool *mp, | |
311 | void *opaque_arg OVS_UNUSED, | |
312 | void *_m, | |
313 | unsigned i OVS_UNUSED) | |
314 | { | |
315 | struct rte_mbuf *m = _m; | |
316 | ||
317 | __rte_pktmbuf_init(mp, opaque_arg, _m, i); | |
318 | ||
cf62fa4c | 319 | dp_packet_init_dpdk((struct dp_packet *) m, m->buf_len); |
b3cd9f9d PS |
320 | } |
321 | ||
8a9562d2 PS |
322 | static struct dpdk_mp * |
323 | dpdk_mp_get(int socket_id, int mtu) OVS_REQUIRES(dpdk_mutex) | |
324 | { | |
325 | struct dpdk_mp *dmp = NULL; | |
326 | char mp_name[RTE_MEMPOOL_NAMESIZE]; | |
da79ce2b | 327 | unsigned mp_size; |
8a9562d2 PS |
328 | |
329 | LIST_FOR_EACH (dmp, list_node, &dpdk_mp_list) { | |
330 | if (dmp->socket_id == socket_id && dmp->mtu == mtu) { | |
331 | dmp->refcount++; | |
332 | return dmp; | |
333 | } | |
334 | } | |
335 | ||
336 | dmp = dpdk_rte_mzalloc(sizeof *dmp); | |
337 | dmp->socket_id = socket_id; | |
338 | dmp->mtu = mtu; | |
339 | dmp->refcount = 1; | |
340 | ||
da79ce2b DDP |
341 | mp_size = MAX_NB_MBUF; |
342 | do { | |
343 | if (snprintf(mp_name, RTE_MEMPOOL_NAMESIZE, "ovs_mp_%d_%d_%u", | |
344 | dmp->mtu, dmp->socket_id, mp_size) < 0) { | |
345 | return NULL; | |
346 | } | |
95fb793a | 347 | |
da79ce2b DDP |
348 | dmp->mp = rte_mempool_create(mp_name, mp_size, MBUF_SIZE(mtu), |
349 | MP_CACHE_SZ, | |
350 | sizeof(struct rte_pktmbuf_pool_private), | |
351 | rte_pktmbuf_pool_init, NULL, | |
352 | ovs_rte_pktmbuf_init, NULL, | |
353 | socket_id, 0); | |
354 | } while (!dmp->mp && rte_errno == ENOMEM && (mp_size /= 2) >= MIN_NB_MBUF); | |
8a9562d2 PS |
355 | |
356 | if (dmp->mp == NULL) { | |
357 | return NULL; | |
da79ce2b DDP |
358 | } else { |
359 | VLOG_DBG("Allocated \"%s\" mempool with %u mbufs", mp_name, mp_size ); | |
8a9562d2 PS |
360 | } |
361 | ||
362 | list_push_back(&dpdk_mp_list, &dmp->list_node); | |
363 | return dmp; | |
364 | } | |
365 | ||
366 | static void | |
367 | dpdk_mp_put(struct dpdk_mp *dmp) | |
368 | { | |
369 | ||
370 | if (!dmp) { | |
371 | return; | |
372 | } | |
373 | ||
374 | dmp->refcount--; | |
375 | ovs_assert(dmp->refcount >= 0); | |
376 | ||
377 | #if 0 | |
378 | /* I could not find any API to destroy mp. */ | |
379 | if (dmp->refcount == 0) { | |
380 | list_delete(dmp->list_node); | |
381 | /* destroy mp-pool. */ | |
382 | } | |
383 | #endif | |
384 | } | |
385 | ||
386 | static void | |
387 | check_link_status(struct netdev_dpdk *dev) | |
388 | { | |
389 | struct rte_eth_link link; | |
390 | ||
391 | rte_eth_link_get_nowait(dev->port_id, &link); | |
392 | ||
393 | if (dev->link.link_status != link.link_status) { | |
3e912ffc | 394 | netdev_change_seq_changed(&dev->up); |
8a9562d2 PS |
395 | |
396 | dev->link_reset_cnt++; | |
397 | dev->link = link; | |
398 | if (dev->link.link_status) { | |
399 | VLOG_DBG_RL(&rl, "Port %d Link Up - speed %u Mbps - %s", | |
400 | dev->port_id, (unsigned)dev->link.link_speed, | |
401 | (dev->link.link_duplex == ETH_LINK_FULL_DUPLEX) ? | |
402 | ("full-duplex") : ("half-duplex")); | |
403 | } else { | |
404 | VLOG_DBG_RL(&rl, "Port %d Link Down", dev->port_id); | |
405 | } | |
406 | } | |
407 | } | |
408 | ||
409 | static void * | |
410 | dpdk_watchdog(void *dummy OVS_UNUSED) | |
411 | { | |
412 | struct netdev_dpdk *dev; | |
413 | ||
414 | pthread_detach(pthread_self()); | |
415 | ||
416 | for (;;) { | |
417 | ovs_mutex_lock(&dpdk_mutex); | |
418 | LIST_FOR_EACH (dev, list_node, &dpdk_list) { | |
419 | ovs_mutex_lock(&dev->mutex); | |
420 | check_link_status(dev); | |
421 | ovs_mutex_unlock(&dev->mutex); | |
422 | } | |
423 | ovs_mutex_unlock(&dpdk_mutex); | |
424 | xsleep(DPDK_PORT_WATCHDOG_INTERVAL); | |
425 | } | |
426 | ||
427 | return NULL; | |
428 | } | |
429 | ||
430 | static int | |
431 | dpdk_eth_dev_init(struct netdev_dpdk *dev) OVS_REQUIRES(dpdk_mutex) | |
432 | { | |
433 | struct rte_pktmbuf_pool_private *mbp_priv; | |
434 | struct ether_addr eth_addr; | |
435 | int diag; | |
436 | int i; | |
437 | ||
438 | if (dev->port_id < 0 || dev->port_id >= rte_eth_dev_count()) { | |
95fb793a | 439 | return ENODEV; |
8a9562d2 PS |
440 | } |
441 | ||
5496878c AW |
442 | diag = rte_eth_dev_configure(dev->port_id, dev->up.n_rxq, dev->up.n_txq, |
443 | &port_conf); | |
8a9562d2 PS |
444 | if (diag) { |
445 | VLOG_ERR("eth dev config error %d",diag); | |
95fb793a | 446 | return -diag; |
8a9562d2 PS |
447 | } |
448 | ||
5496878c | 449 | for (i = 0; i < dev->up.n_txq; i++) { |
79f5354c | 450 | diag = rte_eth_tx_queue_setup(dev->port_id, i, NIC_PORT_TX_Q_SIZE, |
d221ffa1 | 451 | dev->socket_id, &tx_conf); |
8a9562d2 PS |
452 | if (diag) { |
453 | VLOG_ERR("eth dev tx queue setup error %d",diag); | |
95fb793a | 454 | return -diag; |
8a9562d2 PS |
455 | } |
456 | } | |
457 | ||
5496878c | 458 | for (i = 0; i < dev->up.n_rxq; i++) { |
79f5354c | 459 | diag = rte_eth_rx_queue_setup(dev->port_id, i, NIC_PORT_RX_Q_SIZE, |
d221ffa1 | 460 | dev->socket_id, |
a715f600 | 461 | &rx_conf, dev->dpdk_mp->mp); |
8a9562d2 PS |
462 | if (diag) { |
463 | VLOG_ERR("eth dev rx queue setup error %d",diag); | |
95fb793a | 464 | return -diag; |
8a9562d2 PS |
465 | } |
466 | } | |
467 | ||
468 | diag = rte_eth_dev_start(dev->port_id); | |
469 | if (diag) { | |
470 | VLOG_ERR("eth dev start error %d",diag); | |
95fb793a | 471 | return -diag; |
8a9562d2 PS |
472 | } |
473 | ||
474 | rte_eth_promiscuous_enable(dev->port_id); | |
475 | rte_eth_allmulticast_enable(dev->port_id); | |
476 | ||
477 | memset(ð_addr, 0x0, sizeof(eth_addr)); | |
478 | rte_eth_macaddr_get(dev->port_id, ð_addr); | |
479 | VLOG_INFO_RL(&rl, "Port %d: "ETH_ADDR_FMT"", | |
480 | dev->port_id, ETH_ADDR_ARGS(eth_addr.addr_bytes)); | |
481 | ||
482 | memcpy(dev->hwaddr, eth_addr.addr_bytes, ETH_ADDR_LEN); | |
483 | rte_eth_link_get_nowait(dev->port_id, &dev->link); | |
484 | ||
485 | mbp_priv = rte_mempool_get_priv(dev->dpdk_mp->mp); | |
486 | dev->buf_size = mbp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM; | |
487 | ||
488 | dev->flags = NETDEV_UP | NETDEV_PROMISC; | |
489 | return 0; | |
490 | } | |
491 | ||
492 | static struct netdev_dpdk * | |
493 | netdev_dpdk_cast(const struct netdev *netdev) | |
494 | { | |
495 | return CONTAINER_OF(netdev, struct netdev_dpdk, up); | |
496 | } | |
497 | ||
498 | static struct netdev * | |
499 | netdev_dpdk_alloc(void) | |
500 | { | |
501 | struct netdev_dpdk *netdev = dpdk_rte_mzalloc(sizeof *netdev); | |
502 | return &netdev->up; | |
503 | } | |
504 | ||
5a034064 | 505 | static void |
91968eb0 | 506 | netdev_dpdk_alloc_txq(struct netdev_dpdk *netdev, unsigned int n_txqs) |
5a034064 AW |
507 | { |
508 | int i; | |
509 | ||
510 | netdev->tx_q = dpdk_rte_mzalloc(n_txqs * sizeof *netdev->tx_q); | |
94143fc4 AW |
511 | /* Each index is considered as a cpu core id, since there should |
512 | * be one tx queue for each cpu core. */ | |
5a034064 | 513 | for (i = 0; i < n_txqs; i++) { |
ba0358a1 | 514 | int numa_id = ovs_numa_get_numa_id(i); |
94143fc4 | 515 | |
94143fc4 AW |
516 | /* If the corresponding core is not on the same numa node |
517 | * as 'netdev', flags the 'flush_tx'. */ | |
ba0358a1 | 518 | netdev->tx_q[i].flush_tx = netdev->socket_id == numa_id; |
5a034064 AW |
519 | } |
520 | } | |
521 | ||
8a9562d2 | 522 | static int |
58397e6c KT |
523 | netdev_dpdk_init(struct netdev *netdev_, unsigned int port_no, |
524 | enum dpdk_dev_type type) | |
5a034064 | 525 | OVS_REQUIRES(dpdk_mutex) |
8a9562d2 PS |
526 | { |
527 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
1b7a04e0 | 528 | int sid; |
95fb793a | 529 | int err = 0; |
8a9562d2 | 530 | |
95fb793a | 531 | ovs_mutex_init(&netdev->mutex); |
95fb793a | 532 | ovs_mutex_lock(&netdev->mutex); |
8a9562d2 | 533 | |
1b7a04e0 AW |
534 | /* If the 'sid' is negative, it means that the kernel fails |
535 | * to obtain the pci numa info. In that situation, always | |
536 | * use 'SOCKET0'. */ | |
58397e6c KT |
537 | if (type == DPDK_DEV_ETH) { |
538 | sid = rte_eth_dev_socket_id(port_no); | |
539 | } else { | |
540 | sid = rte_lcore_to_socket_id(rte_get_master_lcore()); | |
541 | } | |
542 | ||
1b7a04e0 | 543 | netdev->socket_id = sid < 0 ? SOCKET0 : sid; |
95fb793a | 544 | netdev->port_id = port_no; |
58397e6c | 545 | netdev->type = type; |
8a9562d2 | 546 | netdev->flags = 0; |
8a9562d2 PS |
547 | netdev->mtu = ETHER_MTU; |
548 | netdev->max_packet_len = MTU_TO_MAX_LEN(netdev->mtu); | |
58397e6c | 549 | rte_spinlock_init(&netdev->txq_lock); |
8a9562d2 | 550 | |
8a9562d2 PS |
551 | netdev->dpdk_mp = dpdk_mp_get(netdev->socket_id, netdev->mtu); |
552 | if (!netdev->dpdk_mp) { | |
553 | err = ENOMEM; | |
95fb793a | 554 | goto unlock; |
8a9562d2 PS |
555 | } |
556 | ||
5496878c AW |
557 | netdev_->n_txq = NR_QUEUE; |
558 | netdev_->n_rxq = NR_QUEUE; | |
58397e6c KT |
559 | |
560 | if (type == DPDK_DEV_ETH) { | |
561 | netdev_dpdk_alloc_txq(netdev, NR_QUEUE); | |
562 | err = dpdk_eth_dev_init(netdev); | |
563 | if (err) { | |
564 | goto unlock; | |
565 | } | |
8a9562d2 | 566 | } |
8a9562d2 PS |
567 | |
568 | list_push_back(&dpdk_list, &netdev->list_node); | |
569 | ||
95fb793a | 570 | unlock: |
5a034064 AW |
571 | if (err) { |
572 | rte_free(netdev->tx_q); | |
573 | } | |
8a9562d2 | 574 | ovs_mutex_unlock(&netdev->mutex); |
95fb793a | 575 | return err; |
576 | } | |
577 | ||
578 | static int | |
579 | dpdk_dev_parse_name(const char dev_name[], const char prefix[], | |
580 | unsigned int *port_no) | |
581 | { | |
582 | const char *cport; | |
583 | ||
584 | if (strncmp(dev_name, prefix, strlen(prefix))) { | |
585 | return ENODEV; | |
586 | } | |
587 | ||
588 | cport = dev_name + strlen(prefix); | |
589 | *port_no = strtol(cport, 0, 0); /* string must be null terminated */ | |
590 | return 0; | |
591 | } | |
592 | ||
58397e6c KT |
593 | static int |
594 | netdev_dpdk_vhost_construct(struct netdev *netdev_) | |
595 | { | |
596 | int err; | |
597 | ||
598 | if (rte_eal_init_ret) { | |
599 | return rte_eal_init_ret; | |
600 | } | |
601 | ||
602 | ovs_mutex_lock(&dpdk_mutex); | |
603 | err = netdev_dpdk_init(netdev_, -1, DPDK_DEV_VHOST); | |
604 | ovs_mutex_unlock(&dpdk_mutex); | |
605 | ||
606 | return err; | |
607 | } | |
608 | ||
95fb793a | 609 | static int |
610 | netdev_dpdk_construct(struct netdev *netdev) | |
611 | { | |
612 | unsigned int port_no; | |
613 | int err; | |
614 | ||
615 | if (rte_eal_init_ret) { | |
616 | return rte_eal_init_ret; | |
617 | } | |
618 | ||
619 | /* Names always start with "dpdk" */ | |
620 | err = dpdk_dev_parse_name(netdev->name, "dpdk", &port_no); | |
621 | if (err) { | |
622 | return err; | |
623 | } | |
624 | ||
625 | ovs_mutex_lock(&dpdk_mutex); | |
58397e6c | 626 | err = netdev_dpdk_init(netdev, port_no, DPDK_DEV_ETH); |
8a9562d2 PS |
627 | ovs_mutex_unlock(&dpdk_mutex); |
628 | return err; | |
629 | } | |
630 | ||
631 | static void | |
632 | netdev_dpdk_destruct(struct netdev *netdev_) | |
633 | { | |
634 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
635 | ||
636 | ovs_mutex_lock(&dev->mutex); | |
637 | rte_eth_dev_stop(dev->port_id); | |
638 | ovs_mutex_unlock(&dev->mutex); | |
639 | ||
640 | ovs_mutex_lock(&dpdk_mutex); | |
5a034064 | 641 | rte_free(dev->tx_q); |
8a9562d2 PS |
642 | list_remove(&dev->list_node); |
643 | dpdk_mp_put(dev->dpdk_mp); | |
644 | ovs_mutex_unlock(&dpdk_mutex); | |
58397e6c | 645 | } |
8a9562d2 | 646 | |
58397e6c KT |
647 | static void |
648 | netdev_dpdk_vhost_destruct(struct netdev *netdev_) | |
649 | { | |
650 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
651 | ||
652 | /* Can't remove a port while a guest is attached to it. */ | |
653 | if (netdev_dpdk_get_virtio(dev) != NULL) { | |
654 | VLOG_ERR("Can not remove port, vhost device still attached"); | |
655 | return; | |
656 | } | |
657 | ||
658 | ovs_mutex_lock(&dpdk_mutex); | |
659 | list_remove(&dev->list_node); | |
660 | dpdk_mp_put(dev->dpdk_mp); | |
661 | ovs_mutex_unlock(&dpdk_mutex); | |
8a9562d2 PS |
662 | } |
663 | ||
664 | static void | |
665 | netdev_dpdk_dealloc(struct netdev *netdev_) | |
666 | { | |
667 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
668 | ||
669 | rte_free(netdev); | |
670 | } | |
671 | ||
672 | static int | |
673 | netdev_dpdk_get_config(const struct netdev *netdev_, struct smap *args) | |
674 | { | |
675 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
676 | ||
677 | ovs_mutex_lock(&dev->mutex); | |
678 | ||
47659062 AW |
679 | smap_add_format(args, "configured_rx_queues", "%d", netdev_->n_rxq); |
680 | smap_add_format(args, "configured_tx_queues", "%d", netdev_->n_txq); | |
8a9562d2 PS |
681 | ovs_mutex_unlock(&dev->mutex); |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
7dec44fe AW |
686 | static int |
687 | netdev_dpdk_get_numa_id(const struct netdev *netdev_) | |
688 | { | |
689 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
690 | ||
691 | return netdev->socket_id; | |
692 | } | |
693 | ||
5496878c AW |
694 | /* Sets the number of tx queues and rx queues for the dpdk interface. |
695 | * If the configuration fails, do not try restoring its old configuration | |
696 | * and just returns the error. */ | |
697 | static int | |
698 | netdev_dpdk_set_multiq(struct netdev *netdev_, unsigned int n_txq, | |
699 | unsigned int n_rxq) | |
700 | { | |
701 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
702 | int err = 0; | |
703 | ||
704 | if (netdev->up.n_txq == n_txq && netdev->up.n_rxq == n_rxq) { | |
705 | return err; | |
706 | } | |
707 | ||
b7ccaf67 | 708 | ovs_mutex_lock(&dpdk_mutex); |
5496878c | 709 | ovs_mutex_lock(&netdev->mutex); |
91968eb0 | 710 | |
5496878c | 711 | rte_eth_dev_stop(netdev->port_id); |
91968eb0 | 712 | |
5496878c AW |
713 | netdev->up.n_txq = n_txq; |
714 | netdev->up.n_rxq = n_rxq; | |
58397e6c | 715 | |
91968eb0 AW |
716 | rte_free(netdev->tx_q); |
717 | netdev_dpdk_alloc_txq(netdev, n_txq); | |
5496878c | 718 | err = dpdk_eth_dev_init(netdev); |
91968eb0 | 719 | |
5496878c | 720 | ovs_mutex_unlock(&netdev->mutex); |
b7ccaf67 | 721 | ovs_mutex_unlock(&dpdk_mutex); |
5496878c AW |
722 | |
723 | return err; | |
724 | } | |
725 | ||
58397e6c KT |
726 | static int |
727 | netdev_dpdk_vhost_set_multiq(struct netdev *netdev_, unsigned int n_txq, | |
728 | unsigned int n_rxq) | |
729 | { | |
730 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
731 | int err = 0; | |
732 | ||
733 | if (netdev->up.n_txq == n_txq && netdev->up.n_rxq == n_rxq) { | |
734 | return err; | |
735 | } | |
736 | ||
737 | ovs_mutex_lock(&dpdk_mutex); | |
738 | ovs_mutex_lock(&netdev->mutex); | |
739 | ||
740 | netdev->up.n_txq = n_txq; | |
741 | netdev->up.n_rxq = n_rxq; | |
742 | ||
743 | ovs_mutex_unlock(&netdev->mutex); | |
744 | ovs_mutex_unlock(&dpdk_mutex); | |
745 | ||
746 | return err; | |
747 | } | |
748 | ||
8a9562d2 PS |
749 | static struct netdev_rxq * |
750 | netdev_dpdk_rxq_alloc(void) | |
751 | { | |
752 | struct netdev_rxq_dpdk *rx = dpdk_rte_mzalloc(sizeof *rx); | |
753 | ||
754 | return &rx->up; | |
755 | } | |
756 | ||
757 | static struct netdev_rxq_dpdk * | |
758 | netdev_rxq_dpdk_cast(const struct netdev_rxq *rx) | |
759 | { | |
760 | return CONTAINER_OF(rx, struct netdev_rxq_dpdk, up); | |
761 | } | |
762 | ||
763 | static int | |
764 | netdev_dpdk_rxq_construct(struct netdev_rxq *rxq_) | |
765 | { | |
766 | struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_); | |
767 | struct netdev_dpdk *netdev = netdev_dpdk_cast(rx->up.netdev); | |
768 | ||
769 | ovs_mutex_lock(&netdev->mutex); | |
770 | rx->port_id = netdev->port_id; | |
771 | ovs_mutex_unlock(&netdev->mutex); | |
772 | ||
773 | return 0; | |
774 | } | |
775 | ||
776 | static void | |
777 | netdev_dpdk_rxq_destruct(struct netdev_rxq *rxq_ OVS_UNUSED) | |
778 | { | |
779 | } | |
780 | ||
781 | static void | |
782 | netdev_dpdk_rxq_dealloc(struct netdev_rxq *rxq_) | |
783 | { | |
784 | struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_); | |
785 | ||
786 | rte_free(rx); | |
787 | } | |
788 | ||
b170db2a RW |
789 | static inline void |
790 | dpdk_queue_flush__(struct netdev_dpdk *dev, int qid) | |
8a9562d2 PS |
791 | { |
792 | struct dpdk_tx_queue *txq = &dev->tx_q[qid]; | |
1304f1f8 DDP |
793 | uint32_t nb_tx = 0; |
794 | ||
795 | while (nb_tx != txq->count) { | |
796 | uint32_t ret; | |
797 | ||
798 | ret = rte_eth_tx_burst(dev->port_id, qid, txq->burst_pkts + nb_tx, | |
799 | txq->count - nb_tx); | |
800 | if (!ret) { | |
801 | break; | |
802 | } | |
803 | ||
804 | nb_tx += ret; | |
805 | } | |
8a9562d2 | 806 | |
b170db2a | 807 | if (OVS_UNLIKELY(nb_tx != txq->count)) { |
db73f716 DDP |
808 | /* free buffers, which we couldn't transmit, one at a time (each |
809 | * packet could come from a different mempool) */ | |
810 | int i; | |
811 | ||
812 | for (i = nb_tx; i < txq->count; i++) { | |
813 | rte_pktmbuf_free_seg(txq->burst_pkts[i]); | |
814 | } | |
1304f1f8 DDP |
815 | ovs_mutex_lock(&dev->mutex); |
816 | dev->stats.tx_dropped += txq->count-nb_tx; | |
817 | ovs_mutex_unlock(&dev->mutex); | |
8a9562d2 | 818 | } |
1304f1f8 | 819 | |
8a9562d2 | 820 | txq->count = 0; |
844f2d74 | 821 | txq->tsc = rte_get_timer_cycles(); |
b170db2a RW |
822 | } |
823 | ||
824 | static inline void | |
825 | dpdk_queue_flush(struct netdev_dpdk *dev, int qid) | |
826 | { | |
827 | struct dpdk_tx_queue *txq = &dev->tx_q[qid]; | |
828 | ||
829 | if (txq->count == 0) { | |
830 | return; | |
831 | } | |
b170db2a | 832 | dpdk_queue_flush__(dev, qid); |
8a9562d2 PS |
833 | } |
834 | ||
58397e6c KT |
835 | static bool |
836 | is_vhost_running(struct virtio_net *dev) | |
837 | { | |
838 | return (dev != NULL && (dev->flags & VIRTIO_DEV_RUNNING)); | |
839 | } | |
840 | ||
841 | /* | |
842 | * The receive path for the vhost port is the TX path out from guest. | |
843 | */ | |
844 | static int | |
845 | netdev_dpdk_vhost_rxq_recv(struct netdev_rxq *rxq_, | |
846 | struct dp_packet **packets, int *c) | |
847 | { | |
848 | struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_); | |
849 | struct netdev *netdev = rx->up.netdev; | |
850 | struct netdev_dpdk *vhost_dev = netdev_dpdk_cast(netdev); | |
851 | struct virtio_net *virtio_dev = netdev_dpdk_get_virtio(vhost_dev); | |
852 | int qid = 1; | |
853 | uint16_t nb_rx = 0; | |
854 | ||
855 | if (OVS_UNLIKELY(!is_vhost_running(virtio_dev))) { | |
856 | return EAGAIN; | |
857 | } | |
858 | ||
859 | nb_rx = rte_vhost_dequeue_burst(virtio_dev, qid, | |
860 | vhost_dev->dpdk_mp->mp, | |
861 | (struct rte_mbuf **)packets, | |
862 | MAX_PKT_BURST); | |
863 | if (!nb_rx) { | |
864 | return EAGAIN; | |
865 | } | |
866 | ||
867 | vhost_dev->stats.rx_packets += (uint64_t)nb_rx; | |
868 | *c = (int) nb_rx; | |
869 | return 0; | |
870 | } | |
871 | ||
8a9562d2 | 872 | static int |
e14deea0 | 873 | netdev_dpdk_rxq_recv(struct netdev_rxq *rxq_, struct dp_packet **packets, |
91088554 | 874 | int *c) |
8a9562d2 PS |
875 | { |
876 | struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_); | |
877 | struct netdev *netdev = rx->up.netdev; | |
878 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
8a9562d2 | 879 | int nb_rx; |
8a9562d2 | 880 | |
5496878c AW |
881 | /* There is only one tx queue for this core. Do not flush other |
882 | * queueus. */ | |
883 | if (rxq_->queue_id == rte_lcore_id()) { | |
884 | dpdk_queue_flush(dev, rxq_->queue_id); | |
885 | } | |
8a9562d2 PS |
886 | |
887 | nb_rx = rte_eth_rx_burst(rx->port_id, rxq_->queue_id, | |
7d08d53e DDP |
888 | (struct rte_mbuf **) packets, |
889 | MIN((int)NETDEV_MAX_RX_BATCH, | |
890 | (int)MAX_RX_QUEUE_LEN)); | |
8a9562d2 PS |
891 | if (!nb_rx) { |
892 | return EAGAIN; | |
893 | } | |
894 | ||
8a9562d2 PS |
895 | *c = nb_rx; |
896 | ||
897 | return 0; | |
898 | } | |
899 | ||
58397e6c KT |
900 | static void |
901 | __netdev_dpdk_vhost_send(struct netdev *netdev, struct dp_packet **pkts, | |
902 | int cnt, bool may_steal) | |
903 | { | |
904 | struct netdev_dpdk *vhost_dev = netdev_dpdk_cast(netdev); | |
905 | struct virtio_net *virtio_dev = netdev_dpdk_get_virtio(vhost_dev); | |
906 | int tx_pkts, i; | |
907 | ||
908 | if (OVS_UNLIKELY(!is_vhost_running(virtio_dev))) { | |
909 | ovs_mutex_lock(&vhost_dev->mutex); | |
910 | vhost_dev->stats.tx_dropped+= cnt; | |
911 | ovs_mutex_unlock(&vhost_dev->mutex); | |
912 | goto out; | |
913 | } | |
914 | ||
915 | /* There is vHost TX single queue, So we need to lock it for TX. */ | |
916 | rte_spinlock_lock(&vhost_dev->txq_lock); | |
917 | tx_pkts = rte_vhost_enqueue_burst(virtio_dev, VIRTIO_RXQ, | |
918 | (struct rte_mbuf **)pkts, cnt); | |
919 | ||
920 | vhost_dev->stats.tx_packets += tx_pkts; | |
921 | vhost_dev->stats.tx_dropped += (cnt - tx_pkts); | |
922 | rte_spinlock_unlock(&vhost_dev->txq_lock); | |
923 | ||
924 | out: | |
925 | if (may_steal) { | |
926 | for (i = 0; i < cnt; i++) { | |
927 | dp_packet_delete(pkts[i]); | |
928 | } | |
929 | } | |
930 | } | |
931 | ||
8a9562d2 | 932 | inline static void |
f4fd623c DDP |
933 | dpdk_queue_pkts(struct netdev_dpdk *dev, int qid, |
934 | struct rte_mbuf **pkts, int cnt) | |
8a9562d2 PS |
935 | { |
936 | struct dpdk_tx_queue *txq = &dev->tx_q[qid]; | |
937 | uint64_t diff_tsc; | |
8a9562d2 | 938 | |
f4fd623c DDP |
939 | int i = 0; |
940 | ||
f4fd623c DDP |
941 | while (i < cnt) { |
942 | int freeslots = MAX_TX_QUEUE_LEN - txq->count; | |
943 | int tocopy = MIN(freeslots, cnt-i); | |
8a9562d2 | 944 | |
f4fd623c DDP |
945 | memcpy(&txq->burst_pkts[txq->count], &pkts[i], |
946 | tocopy * sizeof (struct rte_mbuf *)); | |
947 | ||
948 | txq->count += tocopy; | |
949 | i += tocopy; | |
950 | ||
94143fc4 | 951 | if (txq->count == MAX_TX_QUEUE_LEN || txq->flush_tx) { |
b170db2a | 952 | dpdk_queue_flush__(dev, qid); |
f4fd623c | 953 | } |
844f2d74 | 954 | diff_tsc = rte_get_timer_cycles() - txq->tsc; |
f4fd623c | 955 | if (diff_tsc >= DRAIN_TSC) { |
b170db2a | 956 | dpdk_queue_flush__(dev, qid); |
f4fd623c | 957 | } |
8a9562d2 | 958 | } |
8a9562d2 PS |
959 | } |
960 | ||
961 | /* Tx function. Transmit packets indefinitely */ | |
962 | static void | |
58397e6c | 963 | dpdk_do_tx_copy(struct netdev *netdev, int qid, struct dp_packet **pkts, |
2654cc33 | 964 | int cnt) |
db73f716 | 965 | OVS_NO_THREAD_SAFETY_ANALYSIS |
8a9562d2 PS |
966 | { |
967 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
f4fd623c | 968 | struct rte_mbuf *mbufs[cnt]; |
175cf4de RW |
969 | int dropped = 0; |
970 | int newcnt = 0; | |
971 | int i; | |
8a9562d2 | 972 | |
db73f716 DDP |
973 | /* If we are on a non pmd thread we have to use the mempool mutex, because |
974 | * every non pmd thread shares the same mempool cache */ | |
975 | ||
976 | if (!thread_is_pmd()) { | |
977 | ovs_mutex_lock(&nonpmd_mempool_mutex); | |
978 | } | |
979 | ||
f4fd623c | 980 | for (i = 0; i < cnt; i++) { |
cf62fa4c | 981 | int size = dp_packet_size(pkts[i]); |
95fb793a | 982 | |
f98d7864 | 983 | if (OVS_UNLIKELY(size > dev->max_packet_len)) { |
f4fd623c DDP |
984 | VLOG_WARN_RL(&rl, "Too big size %d max_packet_len %d", |
985 | (int)size , dev->max_packet_len); | |
986 | ||
175cf4de | 987 | dropped++; |
f4fd623c DDP |
988 | continue; |
989 | } | |
8a9562d2 | 990 | |
f4fd623c | 991 | mbufs[newcnt] = rte_pktmbuf_alloc(dev->dpdk_mp->mp); |
8a9562d2 | 992 | |
f4fd623c | 993 | if (!mbufs[newcnt]) { |
175cf4de RW |
994 | dropped += cnt - i; |
995 | break; | |
f4fd623c DDP |
996 | } |
997 | ||
998 | /* We have to do a copy for now */ | |
b8e57534 | 999 | memcpy(rte_pktmbuf_mtod(mbufs[newcnt], void *), dp_packet_data(pkts[i]), size); |
f4fd623c DDP |
1000 | |
1001 | rte_pktmbuf_data_len(mbufs[newcnt]) = size; | |
1002 | rte_pktmbuf_pkt_len(mbufs[newcnt]) = size; | |
1003 | ||
1004 | newcnt++; | |
1005 | } | |
8a9562d2 | 1006 | |
f98d7864 | 1007 | if (OVS_UNLIKELY(dropped)) { |
175cf4de RW |
1008 | ovs_mutex_lock(&dev->mutex); |
1009 | dev->stats.tx_dropped += dropped; | |
1010 | ovs_mutex_unlock(&dev->mutex); | |
1011 | } | |
1012 | ||
58397e6c KT |
1013 | if (dev->type == DPDK_DEV_VHOST) { |
1014 | __netdev_dpdk_vhost_send(netdev, (struct dp_packet **) mbufs, newcnt, true); | |
1015 | } else { | |
1016 | dpdk_queue_pkts(dev, qid, mbufs, newcnt); | |
1017 | dpdk_queue_flush(dev, qid); | |
1018 | } | |
db73f716 DDP |
1019 | |
1020 | if (!thread_is_pmd()) { | |
1021 | ovs_mutex_unlock(&nonpmd_mempool_mutex); | |
1022 | } | |
8a9562d2 PS |
1023 | } |
1024 | ||
58397e6c KT |
1025 | static int |
1026 | netdev_dpdk_vhost_send(struct netdev *netdev, int qid OVS_UNUSED, struct dp_packet **pkts, | |
1027 | int cnt, bool may_steal) | |
1028 | { | |
1029 | if (OVS_UNLIKELY(pkts[0]->source != DPBUF_DPDK)) { | |
1030 | int i; | |
1031 | ||
1032 | dpdk_do_tx_copy(netdev, qid, pkts, cnt); | |
1033 | if (may_steal) { | |
1034 | for (i = 0; i < cnt; i++) { | |
1035 | dp_packet_delete(pkts[i]); | |
1036 | } | |
1037 | } | |
1038 | } else { | |
1039 | __netdev_dpdk_vhost_send(netdev, pkts, cnt, may_steal); | |
1040 | } | |
1041 | return 0; | |
1042 | } | |
1043 | ||
7251515e DV |
1044 | static inline void |
1045 | netdev_dpdk_send__(struct netdev_dpdk *dev, int qid, | |
e14deea0 | 1046 | struct dp_packet **pkts, int cnt, bool may_steal) |
8a9562d2 | 1047 | { |
f4fd623c | 1048 | int i; |
8a9562d2 | 1049 | |
7251515e | 1050 | if (OVS_UNLIKELY(!may_steal || |
cf62fa4c | 1051 | pkts[0]->source != DPBUF_DPDK)) { |
7251515e DV |
1052 | struct netdev *netdev = &dev->up; |
1053 | ||
2654cc33 | 1054 | dpdk_do_tx_copy(netdev, qid, pkts, cnt); |
b3cd9f9d PS |
1055 | |
1056 | if (may_steal) { | |
f4fd623c | 1057 | for (i = 0; i < cnt; i++) { |
e14deea0 | 1058 | dp_packet_delete(pkts[i]); |
f4fd623c | 1059 | } |
b3cd9f9d | 1060 | } |
8a9562d2 | 1061 | } else { |
f4fd623c DDP |
1062 | int next_tx_idx = 0; |
1063 | int dropped = 0; | |
8a9562d2 | 1064 | |
f4fd623c | 1065 | for (i = 0; i < cnt; i++) { |
cf62fa4c | 1066 | int size = dp_packet_size(pkts[i]); |
f4fd623c DDP |
1067 | if (OVS_UNLIKELY(size > dev->max_packet_len)) { |
1068 | if (next_tx_idx != i) { | |
1069 | dpdk_queue_pkts(dev, qid, | |
1070 | (struct rte_mbuf **)&pkts[next_tx_idx], | |
1071 | i-next_tx_idx); | |
1ebfe1ac | 1072 | } |
f4fd623c | 1073 | |
1ebfe1ac DDP |
1074 | VLOG_WARN_RL(&rl, "Too big size %d max_packet_len %d", |
1075 | (int)size , dev->max_packet_len); | |
f4fd623c | 1076 | |
e14deea0 | 1077 | dp_packet_delete(pkts[i]); |
1ebfe1ac | 1078 | dropped++; |
f4fd623c DDP |
1079 | next_tx_idx = i + 1; |
1080 | } | |
1081 | } | |
1082 | if (next_tx_idx != cnt) { | |
1083 | dpdk_queue_pkts(dev, qid, | |
1084 | (struct rte_mbuf **)&pkts[next_tx_idx], | |
1085 | cnt-next_tx_idx); | |
1086 | } | |
8a9562d2 | 1087 | |
f4fd623c DDP |
1088 | if (OVS_UNLIKELY(dropped)) { |
1089 | ovs_mutex_lock(&dev->mutex); | |
1090 | dev->stats.tx_dropped += dropped; | |
1091 | ovs_mutex_unlock(&dev->mutex); | |
1092 | } | |
8a9562d2 | 1093 | } |
7251515e DV |
1094 | } |
1095 | ||
1096 | static int | |
1097 | netdev_dpdk_eth_send(struct netdev *netdev, int qid, | |
e14deea0 | 1098 | struct dp_packet **pkts, int cnt, bool may_steal) |
7251515e DV |
1099 | { |
1100 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
8a9562d2 | 1101 | |
7251515e DV |
1102 | netdev_dpdk_send__(dev, qid, pkts, cnt, may_steal); |
1103 | return 0; | |
8a9562d2 PS |
1104 | } |
1105 | ||
1106 | static int | |
1107 | netdev_dpdk_set_etheraddr(struct netdev *netdev, | |
1108 | const uint8_t mac[ETH_ADDR_LEN]) | |
1109 | { | |
1110 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
1111 | ||
1112 | ovs_mutex_lock(&dev->mutex); | |
1113 | if (!eth_addr_equals(dev->hwaddr, mac)) { | |
1114 | memcpy(dev->hwaddr, mac, ETH_ADDR_LEN); | |
045c0d1a | 1115 | netdev_change_seq_changed(netdev); |
8a9562d2 PS |
1116 | } |
1117 | ovs_mutex_unlock(&dev->mutex); | |
1118 | ||
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | static int | |
1123 | netdev_dpdk_get_etheraddr(const struct netdev *netdev, | |
1124 | uint8_t mac[ETH_ADDR_LEN]) | |
1125 | { | |
1126 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
1127 | ||
1128 | ovs_mutex_lock(&dev->mutex); | |
1129 | memcpy(mac, dev->hwaddr, ETH_ADDR_LEN); | |
1130 | ovs_mutex_unlock(&dev->mutex); | |
1131 | ||
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | static int | |
1136 | netdev_dpdk_get_mtu(const struct netdev *netdev, int *mtup) | |
1137 | { | |
1138 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
1139 | ||
1140 | ovs_mutex_lock(&dev->mutex); | |
1141 | *mtup = dev->mtu; | |
1142 | ovs_mutex_unlock(&dev->mutex); | |
1143 | ||
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | static int | |
1148 | netdev_dpdk_set_mtu(const struct netdev *netdev, int mtu) | |
1149 | { | |
1150 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
1151 | int old_mtu, err; | |
1152 | struct dpdk_mp *old_mp; | |
1153 | struct dpdk_mp *mp; | |
1154 | ||
1155 | ovs_mutex_lock(&dpdk_mutex); | |
1156 | ovs_mutex_lock(&dev->mutex); | |
1157 | if (dev->mtu == mtu) { | |
1158 | err = 0; | |
1159 | goto out; | |
1160 | } | |
1161 | ||
1162 | mp = dpdk_mp_get(dev->socket_id, dev->mtu); | |
1163 | if (!mp) { | |
1164 | err = ENOMEM; | |
1165 | goto out; | |
1166 | } | |
1167 | ||
1168 | rte_eth_dev_stop(dev->port_id); | |
1169 | ||
1170 | old_mtu = dev->mtu; | |
1171 | old_mp = dev->dpdk_mp; | |
1172 | dev->dpdk_mp = mp; | |
1173 | dev->mtu = mtu; | |
1174 | dev->max_packet_len = MTU_TO_MAX_LEN(dev->mtu); | |
1175 | ||
1176 | err = dpdk_eth_dev_init(dev); | |
1177 | if (err) { | |
8a9562d2 PS |
1178 | dpdk_mp_put(mp); |
1179 | dev->mtu = old_mtu; | |
1180 | dev->dpdk_mp = old_mp; | |
1181 | dev->max_packet_len = MTU_TO_MAX_LEN(dev->mtu); | |
1182 | dpdk_eth_dev_init(dev); | |
1183 | goto out; | |
1184 | } | |
1185 | ||
1186 | dpdk_mp_put(old_mp); | |
045c0d1a | 1187 | netdev_change_seq_changed(netdev); |
8a9562d2 PS |
1188 | out: |
1189 | ovs_mutex_unlock(&dev->mutex); | |
1190 | ovs_mutex_unlock(&dpdk_mutex); | |
1191 | return err; | |
1192 | } | |
1193 | ||
1194 | static int | |
1195 | netdev_dpdk_get_carrier(const struct netdev *netdev_, bool *carrier); | |
1196 | ||
58397e6c KT |
1197 | static int |
1198 | netdev_dpdk_vhost_get_stats(const struct netdev *netdev, | |
1199 | struct netdev_stats *stats) | |
1200 | { | |
1201 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
1202 | ||
1203 | ovs_mutex_lock(&dev->mutex); | |
1204 | memset(stats, 0, sizeof(*stats)); | |
1205 | /* Unsupported Stats */ | |
1206 | stats->rx_errors = UINT64_MAX; | |
1207 | stats->tx_errors = UINT64_MAX; | |
1208 | stats->multicast = UINT64_MAX; | |
1209 | stats->collisions = UINT64_MAX; | |
1210 | stats->rx_crc_errors = UINT64_MAX; | |
1211 | stats->rx_fifo_errors = UINT64_MAX; | |
1212 | stats->rx_frame_errors = UINT64_MAX; | |
1213 | stats->rx_length_errors = UINT64_MAX; | |
1214 | stats->rx_missed_errors = UINT64_MAX; | |
1215 | stats->rx_over_errors = UINT64_MAX; | |
1216 | stats->tx_aborted_errors = UINT64_MAX; | |
1217 | stats->tx_carrier_errors = UINT64_MAX; | |
1218 | stats->tx_errors = UINT64_MAX; | |
1219 | stats->tx_fifo_errors = UINT64_MAX; | |
1220 | stats->tx_heartbeat_errors = UINT64_MAX; | |
1221 | stats->tx_window_errors = UINT64_MAX; | |
1222 | stats->rx_bytes += UINT64_MAX; | |
1223 | stats->rx_dropped += UINT64_MAX; | |
1224 | stats->tx_bytes += UINT64_MAX; | |
1225 | ||
1226 | /* Supported Stats */ | |
1227 | stats->rx_packets += dev->stats.rx_packets; | |
1228 | stats->tx_packets += dev->stats.tx_packets; | |
1229 | stats->tx_dropped += dev->stats.tx_dropped; | |
1230 | ovs_mutex_unlock(&dev->mutex); | |
1231 | ||
1232 | return 0; | |
1233 | } | |
1234 | ||
8a9562d2 PS |
1235 | static int |
1236 | netdev_dpdk_get_stats(const struct netdev *netdev, struct netdev_stats *stats) | |
1237 | { | |
1238 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
1239 | struct rte_eth_stats rte_stats; | |
1240 | bool gg; | |
1241 | ||
1242 | netdev_dpdk_get_carrier(netdev, &gg); | |
1243 | ovs_mutex_lock(&dev->mutex); | |
1244 | rte_eth_stats_get(dev->port_id, &rte_stats); | |
1245 | ||
2f9dd77f | 1246 | memset(stats, 0, sizeof(*stats)); |
8a9562d2 | 1247 | |
2f9dd77f PS |
1248 | stats->rx_packets = rte_stats.ipackets; |
1249 | stats->tx_packets = rte_stats.opackets; | |
1250 | stats->rx_bytes = rte_stats.ibytes; | |
1251 | stats->tx_bytes = rte_stats.obytes; | |
1252 | stats->rx_errors = rte_stats.ierrors; | |
1253 | stats->tx_errors = rte_stats.oerrors; | |
1254 | stats->multicast = rte_stats.imcasts; | |
8a9562d2 | 1255 | |
2f9dd77f | 1256 | stats->tx_dropped = dev->stats.tx_dropped; |
8a9562d2 PS |
1257 | ovs_mutex_unlock(&dev->mutex); |
1258 | ||
1259 | return 0; | |
1260 | } | |
1261 | ||
1262 | static int | |
1263 | netdev_dpdk_get_features(const struct netdev *netdev_, | |
1264 | enum netdev_features *current, | |
1265 | enum netdev_features *advertised OVS_UNUSED, | |
1266 | enum netdev_features *supported OVS_UNUSED, | |
1267 | enum netdev_features *peer OVS_UNUSED) | |
1268 | { | |
1269 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
1270 | struct rte_eth_link link; | |
1271 | ||
1272 | ovs_mutex_lock(&dev->mutex); | |
1273 | link = dev->link; | |
1274 | ovs_mutex_unlock(&dev->mutex); | |
1275 | ||
1276 | if (link.link_duplex == ETH_LINK_AUTONEG_DUPLEX) { | |
1277 | if (link.link_speed == ETH_LINK_SPEED_AUTONEG) { | |
1278 | *current = NETDEV_F_AUTONEG; | |
1279 | } | |
1280 | } else if (link.link_duplex == ETH_LINK_HALF_DUPLEX) { | |
1281 | if (link.link_speed == ETH_LINK_SPEED_10) { | |
1282 | *current = NETDEV_F_10MB_HD; | |
1283 | } | |
1284 | if (link.link_speed == ETH_LINK_SPEED_100) { | |
1285 | *current = NETDEV_F_100MB_HD; | |
1286 | } | |
1287 | if (link.link_speed == ETH_LINK_SPEED_1000) { | |
1288 | *current = NETDEV_F_1GB_HD; | |
1289 | } | |
1290 | } else if (link.link_duplex == ETH_LINK_FULL_DUPLEX) { | |
1291 | if (link.link_speed == ETH_LINK_SPEED_10) { | |
1292 | *current = NETDEV_F_10MB_FD; | |
1293 | } | |
1294 | if (link.link_speed == ETH_LINK_SPEED_100) { | |
1295 | *current = NETDEV_F_100MB_FD; | |
1296 | } | |
1297 | if (link.link_speed == ETH_LINK_SPEED_1000) { | |
1298 | *current = NETDEV_F_1GB_FD; | |
1299 | } | |
1300 | if (link.link_speed == ETH_LINK_SPEED_10000) { | |
1301 | *current = NETDEV_F_10GB_FD; | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | return 0; | |
1306 | } | |
1307 | ||
1308 | static int | |
1309 | netdev_dpdk_get_ifindex(const struct netdev *netdev) | |
1310 | { | |
1311 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
1312 | int ifindex; | |
1313 | ||
1314 | ovs_mutex_lock(&dev->mutex); | |
1315 | ifindex = dev->port_id; | |
1316 | ovs_mutex_unlock(&dev->mutex); | |
1317 | ||
1318 | return ifindex; | |
1319 | } | |
1320 | ||
1321 | static int | |
1322 | netdev_dpdk_get_carrier(const struct netdev *netdev_, bool *carrier) | |
1323 | { | |
1324 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
1325 | ||
1326 | ovs_mutex_lock(&dev->mutex); | |
1327 | check_link_status(dev); | |
1328 | *carrier = dev->link.link_status; | |
58397e6c KT |
1329 | |
1330 | ovs_mutex_unlock(&dev->mutex); | |
1331 | ||
1332 | return 0; | |
1333 | } | |
1334 | ||
1335 | static int | |
1336 | netdev_dpdk_vhost_get_carrier(const struct netdev *netdev_, bool *carrier) | |
1337 | { | |
1338 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
1339 | struct virtio_net *virtio_dev = netdev_dpdk_get_virtio(dev); | |
1340 | ||
1341 | ovs_mutex_lock(&dev->mutex); | |
1342 | ||
1343 | if (is_vhost_running(virtio_dev)) { | |
1344 | *carrier = 1; | |
1345 | } else { | |
1346 | *carrier = 0; | |
1347 | } | |
1348 | ||
8a9562d2 PS |
1349 | ovs_mutex_unlock(&dev->mutex); |
1350 | ||
1351 | return 0; | |
1352 | } | |
1353 | ||
1354 | static long long int | |
1355 | netdev_dpdk_get_carrier_resets(const struct netdev *netdev_) | |
1356 | { | |
1357 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
1358 | long long int carrier_resets; | |
1359 | ||
1360 | ovs_mutex_lock(&dev->mutex); | |
1361 | carrier_resets = dev->link_reset_cnt; | |
1362 | ovs_mutex_unlock(&dev->mutex); | |
1363 | ||
1364 | return carrier_resets; | |
1365 | } | |
1366 | ||
1367 | static int | |
1368 | netdev_dpdk_set_miimon(struct netdev *netdev_ OVS_UNUSED, | |
1369 | long long int interval OVS_UNUSED) | |
1370 | { | |
ee32150e | 1371 | return EOPNOTSUPP; |
8a9562d2 PS |
1372 | } |
1373 | ||
1374 | static int | |
1375 | netdev_dpdk_update_flags__(struct netdev_dpdk *dev, | |
1376 | enum netdev_flags off, enum netdev_flags on, | |
95fb793a | 1377 | enum netdev_flags *old_flagsp) OVS_REQUIRES(dev->mutex) |
8a9562d2 PS |
1378 | { |
1379 | int err; | |
1380 | ||
1381 | if ((off | on) & ~(NETDEV_UP | NETDEV_PROMISC)) { | |
1382 | return EINVAL; | |
1383 | } | |
1384 | ||
1385 | *old_flagsp = dev->flags; | |
1386 | dev->flags |= on; | |
1387 | dev->flags &= ~off; | |
1388 | ||
1389 | if (dev->flags == *old_flagsp) { | |
1390 | return 0; | |
1391 | } | |
1392 | ||
58397e6c KT |
1393 | if (dev->type == DPDK_DEV_ETH) { |
1394 | if (dev->flags & NETDEV_UP) { | |
1395 | err = rte_eth_dev_start(dev->port_id); | |
1396 | if (err) | |
1397 | return -err; | |
1398 | } | |
8a9562d2 | 1399 | |
58397e6c KT |
1400 | if (dev->flags & NETDEV_PROMISC) { |
1401 | rte_eth_promiscuous_enable(dev->port_id); | |
1402 | } | |
8a9562d2 | 1403 | |
58397e6c KT |
1404 | if (!(dev->flags & NETDEV_UP)) { |
1405 | rte_eth_dev_stop(dev->port_id); | |
1406 | } | |
8a9562d2 PS |
1407 | } |
1408 | ||
1409 | return 0; | |
1410 | } | |
1411 | ||
1412 | static int | |
1413 | netdev_dpdk_update_flags(struct netdev *netdev_, | |
1414 | enum netdev_flags off, enum netdev_flags on, | |
1415 | enum netdev_flags *old_flagsp) | |
1416 | { | |
1417 | struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_); | |
1418 | int error; | |
1419 | ||
1420 | ovs_mutex_lock(&netdev->mutex); | |
1421 | error = netdev_dpdk_update_flags__(netdev, off, on, old_flagsp); | |
1422 | ovs_mutex_unlock(&netdev->mutex); | |
1423 | ||
1424 | return error; | |
1425 | } | |
1426 | ||
1427 | static int | |
1428 | netdev_dpdk_get_status(const struct netdev *netdev_, struct smap *args) | |
1429 | { | |
1430 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_); | |
1431 | struct rte_eth_dev_info dev_info; | |
1432 | ||
e0a801c7 | 1433 | if (dev->port_id < 0) |
8a9562d2 PS |
1434 | return ENODEV; |
1435 | ||
1436 | ovs_mutex_lock(&dev->mutex); | |
1437 | rte_eth_dev_info_get(dev->port_id, &dev_info); | |
1438 | ovs_mutex_unlock(&dev->mutex); | |
1439 | ||
1440 | smap_add_format(args, "driver_name", "%s", dev_info.driver_name); | |
1441 | ||
95fb793a | 1442 | smap_add_format(args, "port_no", "%d", dev->port_id); |
8a9562d2 PS |
1443 | smap_add_format(args, "numa_id", "%d", rte_eth_dev_socket_id(dev->port_id)); |
1444 | smap_add_format(args, "driver_name", "%s", dev_info.driver_name); | |
1445 | smap_add_format(args, "min_rx_bufsize", "%u", dev_info.min_rx_bufsize); | |
1446 | smap_add_format(args, "max_rx_pktlen", "%u", dev_info.max_rx_pktlen); | |
1447 | smap_add_format(args, "max_rx_queues", "%u", dev_info.max_rx_queues); | |
1448 | smap_add_format(args, "max_tx_queues", "%u", dev_info.max_tx_queues); | |
1449 | smap_add_format(args, "max_mac_addrs", "%u", dev_info.max_mac_addrs); | |
1450 | smap_add_format(args, "max_hash_mac_addrs", "%u", dev_info.max_hash_mac_addrs); | |
1451 | smap_add_format(args, "max_vfs", "%u", dev_info.max_vfs); | |
1452 | smap_add_format(args, "max_vmdq_pools", "%u", dev_info.max_vmdq_pools); | |
1453 | ||
1454 | smap_add_format(args, "pci-vendor_id", "0x%u", dev_info.pci_dev->id.vendor_id); | |
1455 | smap_add_format(args, "pci-device_id", "0x%x", dev_info.pci_dev->id.device_id); | |
1456 | ||
1457 | return 0; | |
1458 | } | |
1459 | ||
1460 | static void | |
1461 | netdev_dpdk_set_admin_state__(struct netdev_dpdk *dev, bool admin_state) | |
1462 | OVS_REQUIRES(dev->mutex) | |
1463 | { | |
1464 | enum netdev_flags old_flags; | |
1465 | ||
1466 | if (admin_state) { | |
1467 | netdev_dpdk_update_flags__(dev, 0, NETDEV_UP, &old_flags); | |
1468 | } else { | |
1469 | netdev_dpdk_update_flags__(dev, NETDEV_UP, 0, &old_flags); | |
1470 | } | |
1471 | } | |
1472 | ||
1473 | static void | |
1474 | netdev_dpdk_set_admin_state(struct unixctl_conn *conn, int argc, | |
1475 | const char *argv[], void *aux OVS_UNUSED) | |
1476 | { | |
1477 | bool up; | |
1478 | ||
1479 | if (!strcasecmp(argv[argc - 1], "up")) { | |
1480 | up = true; | |
1481 | } else if ( !strcasecmp(argv[argc - 1], "down")) { | |
1482 | up = false; | |
1483 | } else { | |
1484 | unixctl_command_reply_error(conn, "Invalid Admin State"); | |
1485 | return; | |
1486 | } | |
1487 | ||
1488 | if (argc > 2) { | |
1489 | struct netdev *netdev = netdev_from_name(argv[1]); | |
1490 | if (netdev && is_dpdk_class(netdev->netdev_class)) { | |
1491 | struct netdev_dpdk *dpdk_dev = netdev_dpdk_cast(netdev); | |
1492 | ||
1493 | ovs_mutex_lock(&dpdk_dev->mutex); | |
1494 | netdev_dpdk_set_admin_state__(dpdk_dev, up); | |
1495 | ovs_mutex_unlock(&dpdk_dev->mutex); | |
1496 | ||
1497 | netdev_close(netdev); | |
1498 | } else { | |
1499 | unixctl_command_reply_error(conn, "Not a DPDK Interface"); | |
1500 | netdev_close(netdev); | |
1501 | return; | |
1502 | } | |
1503 | } else { | |
1504 | struct netdev_dpdk *netdev; | |
1505 | ||
1506 | ovs_mutex_lock(&dpdk_mutex); | |
1507 | LIST_FOR_EACH (netdev, list_node, &dpdk_list) { | |
1508 | ovs_mutex_lock(&netdev->mutex); | |
1509 | netdev_dpdk_set_admin_state__(netdev, up); | |
1510 | ovs_mutex_unlock(&netdev->mutex); | |
1511 | } | |
1512 | ovs_mutex_unlock(&dpdk_mutex); | |
1513 | } | |
1514 | unixctl_command_reply(conn, "OK"); | |
1515 | } | |
1516 | ||
58397e6c KT |
1517 | /* |
1518 | * Set virtqueue flags so that we do not receive interrupts. | |
1519 | */ | |
1520 | static void | |
1521 | set_irq_status(struct virtio_net *dev) | |
1522 | { | |
1523 | dev->virtqueue[VIRTIO_RXQ]->used->flags = VRING_USED_F_NO_NOTIFY; | |
1524 | dev->virtqueue[VIRTIO_TXQ]->used->flags = VRING_USED_F_NO_NOTIFY; | |
1525 | } | |
1526 | ||
1527 | /* | |
1528 | * A new virtio-net device is added to a vhost port. | |
1529 | */ | |
1530 | static int | |
1531 | new_device(struct virtio_net *dev) | |
1532 | { | |
1533 | struct netdev_dpdk *netdev; | |
1534 | bool exists = false; | |
1535 | ||
1536 | ovs_mutex_lock(&dpdk_mutex); | |
1537 | /* Add device to the vhost port with the same name as that passed down. */ | |
1538 | LIST_FOR_EACH(netdev, list_node, &dpdk_list) { | |
1539 | if (strncmp(dev->ifname, netdev->up.name, IFNAMSIZ) == 0) { | |
1540 | ovs_mutex_lock(&netdev->mutex); | |
1541 | ovsrcu_set(&netdev->virtio_dev, dev); | |
1542 | ovs_mutex_unlock(&netdev->mutex); | |
1543 | exists = true; | |
1544 | dev->flags |= VIRTIO_DEV_RUNNING; | |
1545 | /* Disable notifications. */ | |
1546 | set_irq_status(dev); | |
1547 | break; | |
1548 | } | |
1549 | } | |
1550 | ovs_mutex_unlock(&dpdk_mutex); | |
1551 | ||
1552 | if (!exists) { | |
1553 | VLOG_INFO("vHost Device '%s' (%ld) can't be added - name not found", | |
1554 | dev->ifname, dev->device_fh); | |
1555 | ||
1556 | return -1; | |
1557 | } | |
1558 | ||
1559 | VLOG_INFO("vHost Device '%s' (%ld) has been added", | |
1560 | dev->ifname, dev->device_fh); | |
1561 | return 0; | |
1562 | } | |
1563 | ||
1564 | /* | |
1565 | * Remove a virtio-net device from the specific vhost port. Use dev->remove | |
1566 | * flag to stop any more packets from being sent or received to/from a VM and | |
1567 | * ensure all currently queued packets have been sent/received before removing | |
1568 | * the device. | |
1569 | */ | |
1570 | static void | |
1571 | destroy_device(volatile struct virtio_net *dev) | |
1572 | { | |
1573 | struct netdev_dpdk *vhost_dev; | |
1574 | ||
1575 | ovs_mutex_lock(&dpdk_mutex); | |
1576 | LIST_FOR_EACH (vhost_dev, list_node, &dpdk_list) { | |
1577 | if (netdev_dpdk_get_virtio(vhost_dev) == dev) { | |
1578 | ||
1579 | ovs_mutex_lock(&vhost_dev->mutex); | |
1580 | dev->flags &= ~VIRTIO_DEV_RUNNING; | |
1581 | ovsrcu_set(&vhost_dev->virtio_dev, NULL); | |
1582 | ovs_mutex_unlock(&vhost_dev->mutex); | |
1583 | ||
1584 | /* | |
1585 | * Wait for other threads to quiesce before | |
1586 | * setting the virtio_dev to NULL. | |
1587 | */ | |
1588 | ovsrcu_synchronize(); | |
618f44f7 KT |
1589 | /* |
1590 | * As call to ovsrcu_synchronize() will end the quiescent state, | |
1591 | * put thread back into quiescent state before returning. | |
1592 | */ | |
1593 | ovsrcu_quiesce_start(); | |
58397e6c KT |
1594 | } |
1595 | } | |
1596 | ovs_mutex_unlock(&dpdk_mutex); | |
1597 | ||
1598 | VLOG_INFO("vHost Device '%s' (%ld) has been removed", | |
1599 | dev->ifname, dev->device_fh); | |
1600 | } | |
1601 | ||
1602 | struct virtio_net * | |
1603 | netdev_dpdk_get_virtio(const struct netdev_dpdk *dev) | |
1604 | { | |
1605 | return ovsrcu_get(struct virtio_net *, &dev->virtio_dev); | |
1606 | } | |
1607 | ||
1608 | /* | |
1609 | * These callbacks allow virtio-net devices to be added to vhost ports when | |
1610 | * configuration has been fully complete. | |
1611 | */ | |
1612 | const struct virtio_net_device_ops virtio_net_device_ops = | |
1613 | { | |
1614 | .new_device = new_device, | |
1615 | .destroy_device = destroy_device, | |
1616 | }; | |
1617 | ||
1618 | static void * | |
1619 | start_cuse_session_loop(void *dummy OVS_UNUSED) | |
1620 | { | |
1621 | pthread_detach(pthread_self()); | |
618f44f7 KT |
1622 | /* Put the cuse thread into quiescent state. */ |
1623 | ovsrcu_quiesce_start(); | |
58397e6c KT |
1624 | rte_vhost_driver_session_start(); |
1625 | return NULL; | |
1626 | } | |
1627 | ||
1628 | static int | |
1629 | dpdk_vhost_class_init(void) | |
1630 | { | |
58397e6c KT |
1631 | int err = -1; |
1632 | ||
1633 | rte_vhost_driver_callback_register(&virtio_net_device_ops); | |
1634 | ||
1635 | /* Register CUSE device to handle IOCTLs. | |
1636 | * Unless otherwise specified on the vswitchd command line, cuse_dev_name | |
1637 | * is set to vhost-net. | |
1638 | */ | |
1639 | err = rte_vhost_driver_register(cuse_dev_name); | |
1640 | ||
1641 | if (err != 0) { | |
1642 | VLOG_ERR("CUSE device setup failure."); | |
1643 | return -1; | |
1644 | } | |
1645 | ||
618f44f7 KT |
1646 | ovs_thread_create("cuse_thread", start_cuse_session_loop, NULL); |
1647 | return 0; | |
58397e6c KT |
1648 | } |
1649 | ||
033e9df2 DDP |
1650 | static void |
1651 | dpdk_common_init(void) | |
1652 | { | |
1653 | unixctl_command_register("netdev-dpdk/set-admin-state", | |
1654 | "[netdev] up|down", 1, 2, | |
1655 | netdev_dpdk_set_admin_state, NULL); | |
1656 | ||
1657 | ovs_thread_create("dpdk_watchdog", dpdk_watchdog, NULL); | |
1658 | } | |
1659 | ||
95fb793a | 1660 | /* Client Rings */ |
1661 | ||
95fb793a | 1662 | static int |
1663 | dpdk_ring_create(const char dev_name[], unsigned int port_no, | |
1664 | unsigned int *eth_port_id) | |
1665 | { | |
1666 | struct dpdk_ring *ivshmem; | |
1667 | char ring_name[10]; | |
1668 | int err; | |
1669 | ||
1670 | ivshmem = dpdk_rte_mzalloc(sizeof *ivshmem); | |
1671 | if (ivshmem == NULL) { | |
1672 | return ENOMEM; | |
1673 | } | |
1674 | ||
7251515e | 1675 | /* XXX: Add support for multiquque ring. */ |
95fb793a | 1676 | err = snprintf(ring_name, 10, "%s_tx", dev_name); |
1677 | if (err < 0) { | |
1678 | return -err; | |
1679 | } | |
1680 | ||
7251515e DV |
1681 | /* Create single consumer/producer rings, netdev does explicit locking. */ |
1682 | ivshmem->cring_tx = rte_ring_create(ring_name, DPDK_RING_SIZE, SOCKET0, | |
1683 | RING_F_SP_ENQ | RING_F_SC_DEQ); | |
95fb793a | 1684 | if (ivshmem->cring_tx == NULL) { |
1685 | rte_free(ivshmem); | |
1686 | return ENOMEM; | |
1687 | } | |
1688 | ||
1689 | err = snprintf(ring_name, 10, "%s_rx", dev_name); | |
1690 | if (err < 0) { | |
1691 | return -err; | |
1692 | } | |
1693 | ||
7251515e DV |
1694 | /* Create single consumer/producer rings, netdev does explicit locking. */ |
1695 | ivshmem->cring_rx = rte_ring_create(ring_name, DPDK_RING_SIZE, SOCKET0, | |
1696 | RING_F_SP_ENQ | RING_F_SC_DEQ); | |
95fb793a | 1697 | if (ivshmem->cring_rx == NULL) { |
1698 | rte_free(ivshmem); | |
1699 | return ENOMEM; | |
1700 | } | |
1701 | ||
d7310583 DDP |
1702 | err = rte_eth_from_rings(dev_name, &ivshmem->cring_rx, 1, |
1703 | &ivshmem->cring_tx, 1, SOCKET0); | |
1704 | ||
95fb793a | 1705 | if (err < 0) { |
1706 | rte_free(ivshmem); | |
1707 | return ENODEV; | |
1708 | } | |
1709 | ||
1710 | ivshmem->user_port_id = port_no; | |
1711 | ivshmem->eth_port_id = rte_eth_dev_count() - 1; | |
1712 | list_push_back(&dpdk_ring_list, &ivshmem->list_node); | |
1713 | ||
1714 | *eth_port_id = ivshmem->eth_port_id; | |
1715 | return 0; | |
1716 | } | |
1717 | ||
1718 | static int | |
1719 | dpdk_ring_open(const char dev_name[], unsigned int *eth_port_id) OVS_REQUIRES(dpdk_mutex) | |
1720 | { | |
1721 | struct dpdk_ring *ivshmem; | |
1722 | unsigned int port_no; | |
1723 | int err = 0; | |
1724 | ||
1725 | /* Names always start with "dpdkr" */ | |
1726 | err = dpdk_dev_parse_name(dev_name, "dpdkr", &port_no); | |
1727 | if (err) { | |
1728 | return err; | |
1729 | } | |
1730 | ||
1731 | /* look through our list to find the device */ | |
1732 | LIST_FOR_EACH (ivshmem, list_node, &dpdk_ring_list) { | |
1733 | if (ivshmem->user_port_id == port_no) { | |
58397e6c | 1734 | VLOG_INFO("Found dpdk ring device %s:", dev_name); |
95fb793a | 1735 | *eth_port_id = ivshmem->eth_port_id; /* really all that is needed */ |
1736 | return 0; | |
1737 | } | |
1738 | } | |
1739 | /* Need to create the device rings */ | |
1740 | return dpdk_ring_create(dev_name, port_no, eth_port_id); | |
1741 | } | |
1742 | ||
7251515e DV |
1743 | static int |
1744 | netdev_dpdk_ring_send(struct netdev *netdev, int qid OVS_UNUSED, | |
e14deea0 | 1745 | struct dp_packet **pkts, int cnt, bool may_steal) |
7251515e DV |
1746 | { |
1747 | struct netdev_dpdk *dev = netdev_dpdk_cast(netdev); | |
1748 | ||
1749 | /* DPDK Rings have a single TX queue, Therefore needs locking. */ | |
58397e6c | 1750 | rte_spinlock_lock(&dev->txq_lock); |
7251515e | 1751 | netdev_dpdk_send__(dev, 0, pkts, cnt, may_steal); |
58397e6c | 1752 | rte_spinlock_unlock(&dev->txq_lock); |
7251515e DV |
1753 | return 0; |
1754 | } | |
1755 | ||
95fb793a | 1756 | static int |
1757 | netdev_dpdk_ring_construct(struct netdev *netdev) | |
1758 | { | |
1759 | unsigned int port_no = 0; | |
1760 | int err = 0; | |
1761 | ||
1762 | if (rte_eal_init_ret) { | |
1763 | return rte_eal_init_ret; | |
1764 | } | |
1765 | ||
1766 | ovs_mutex_lock(&dpdk_mutex); | |
1767 | ||
1768 | err = dpdk_ring_open(netdev->name, &port_no); | |
1769 | if (err) { | |
1770 | goto unlock_dpdk; | |
1771 | } | |
1772 | ||
58397e6c | 1773 | err = netdev_dpdk_init(netdev, port_no, DPDK_DEV_ETH); |
95fb793a | 1774 | |
1775 | unlock_dpdk: | |
1776 | ovs_mutex_unlock(&dpdk_mutex); | |
1777 | return err; | |
1778 | } | |
1779 | ||
58397e6c KT |
1780 | #define NETDEV_DPDK_CLASS(NAME, INIT, CONSTRUCT, DESTRUCT, MULTIQ, SEND, \ |
1781 | GET_CARRIER, GET_STATS, GET_FEATURES, GET_STATUS, RXQ_RECV) \ | |
95fb793a | 1782 | { \ |
1783 | NAME, \ | |
1784 | INIT, /* init */ \ | |
1785 | NULL, /* netdev_dpdk_run */ \ | |
1786 | NULL, /* netdev_dpdk_wait */ \ | |
1787 | \ | |
1788 | netdev_dpdk_alloc, \ | |
1789 | CONSTRUCT, \ | |
58397e6c | 1790 | DESTRUCT, \ |
95fb793a | 1791 | netdev_dpdk_dealloc, \ |
1792 | netdev_dpdk_get_config, \ | |
1793 | NULL, /* netdev_dpdk_set_config */ \ | |
1794 | NULL, /* get_tunnel_config */ \ | |
58397e6c KT |
1795 | NULL, /* build header */ \ |
1796 | NULL, /* push header */ \ | |
1797 | NULL, /* pop header */ \ | |
7dec44fe | 1798 | netdev_dpdk_get_numa_id, /* get_numa_id */ \ |
5496878c | 1799 | MULTIQ, /* set_multiq */ \ |
95fb793a | 1800 | \ |
7251515e | 1801 | SEND, /* send */ \ |
95fb793a | 1802 | NULL, /* send_wait */ \ |
1803 | \ | |
1804 | netdev_dpdk_set_etheraddr, \ | |
1805 | netdev_dpdk_get_etheraddr, \ | |
1806 | netdev_dpdk_get_mtu, \ | |
1807 | netdev_dpdk_set_mtu, \ | |
1808 | netdev_dpdk_get_ifindex, \ | |
58397e6c | 1809 | GET_CARRIER, \ |
95fb793a | 1810 | netdev_dpdk_get_carrier_resets, \ |
1811 | netdev_dpdk_set_miimon, \ | |
58397e6c KT |
1812 | GET_STATS, \ |
1813 | GET_FEATURES, \ | |
95fb793a | 1814 | NULL, /* set_advertisements */ \ |
1815 | \ | |
1816 | NULL, /* set_policing */ \ | |
1817 | NULL, /* get_qos_types */ \ | |
1818 | NULL, /* get_qos_capabilities */ \ | |
1819 | NULL, /* get_qos */ \ | |
1820 | NULL, /* set_qos */ \ | |
1821 | NULL, /* get_queue */ \ | |
1822 | NULL, /* set_queue */ \ | |
1823 | NULL, /* delete_queue */ \ | |
1824 | NULL, /* get_queue_stats */ \ | |
1825 | NULL, /* queue_dump_start */ \ | |
1826 | NULL, /* queue_dump_next */ \ | |
1827 | NULL, /* queue_dump_done */ \ | |
1828 | NULL, /* dump_queue_stats */ \ | |
1829 | \ | |
1830 | NULL, /* get_in4 */ \ | |
1831 | NULL, /* set_in4 */ \ | |
1832 | NULL, /* get_in6 */ \ | |
1833 | NULL, /* add_router */ \ | |
1834 | NULL, /* get_next_hop */ \ | |
58397e6c | 1835 | GET_STATUS, \ |
95fb793a | 1836 | NULL, /* arp_lookup */ \ |
1837 | \ | |
1838 | netdev_dpdk_update_flags, \ | |
1839 | \ | |
1840 | netdev_dpdk_rxq_alloc, \ | |
1841 | netdev_dpdk_rxq_construct, \ | |
1842 | netdev_dpdk_rxq_destruct, \ | |
1843 | netdev_dpdk_rxq_dealloc, \ | |
58397e6c | 1844 | RXQ_RECV, \ |
95fb793a | 1845 | NULL, /* rx_wait */ \ |
1846 | NULL, /* rxq_drain */ \ | |
1847 | } | |
8a9562d2 PS |
1848 | |
1849 | int | |
1850 | dpdk_init(int argc, char **argv) | |
1851 | { | |
1852 | int result; | |
58397e6c KT |
1853 | int base = 0; |
1854 | char *pragram_name = argv[0]; | |
8a9562d2 | 1855 | |
9441caf3 | 1856 | if (argc < 2 || strcmp(argv[1], "--dpdk")) |
8a9562d2 PS |
1857 | return 0; |
1858 | ||
58397e6c | 1859 | /* Remove the --dpdk argument from arg list.*/ |
8a9562d2 PS |
1860 | argc--; |
1861 | argv++; | |
1862 | ||
58397e6c KT |
1863 | /* If the cuse_dev_name parameter has been provided, set 'cuse_dev_name' to |
1864 | * this string if it meets the correct criteria. Otherwise, set it to the | |
1865 | * default (vhost-net). | |
1866 | */ | |
1867 | if (!strcmp(argv[1], "--cuse_dev_name") && | |
1868 | (strlen(argv[2]) <= NAME_MAX)) { | |
1869 | ||
1870 | cuse_dev_name = strdup(argv[2]); | |
1871 | ||
1872 | /* Remove the cuse_dev_name configuration parameters from the argument | |
1873 | * list, so that the correct elements are passed to the DPDK | |
1874 | * initialization function | |
1875 | */ | |
1876 | argc -= 2; | |
1877 | argv += 2; /* Increment by two to bypass the cuse_dev_name arguments */ | |
1878 | base = 2; | |
1879 | ||
1880 | VLOG_ERR("User-provided cuse_dev_name in use: /dev/%s", cuse_dev_name); | |
1881 | } else { | |
1882 | cuse_dev_name = "vhost-net"; | |
1883 | VLOG_INFO("No cuse_dev_name provided - defaulting to /dev/vhost-net"); | |
1884 | } | |
1885 | ||
1886 | /* Keep the program name argument as this is needed for call to | |
1887 | * rte_eal_init() | |
1888 | */ | |
1889 | argv[0] = pragram_name; | |
1890 | ||
8a9562d2 PS |
1891 | /* Make sure things are initialized ... */ |
1892 | result = rte_eal_init(argc, argv); | |
451450fa | 1893 | if (result < 0) { |
58397e6c | 1894 | ovs_abort(result, "Cannot init EAL"); |
451450fa | 1895 | } |
8a9562d2 | 1896 | |
d7310583 | 1897 | rte_memzone_dump(stdout); |
8a9562d2 PS |
1898 | rte_eal_init_ret = 0; |
1899 | ||
451450fa | 1900 | if (argc > result) { |
9441caf3 | 1901 | argv[result] = argv[0]; |
451450fa | 1902 | } |
9441caf3 | 1903 | |
db73f716 DDP |
1904 | /* We are called from the main thread here */ |
1905 | thread_set_nonpmd(); | |
1906 | ||
58397e6c | 1907 | return result + 1 + base; |
8a9562d2 PS |
1908 | } |
1909 | ||
95fb793a | 1910 | const struct netdev_class dpdk_class = |
1911 | NETDEV_DPDK_CLASS( | |
1912 | "dpdk", | |
b8e57534 | 1913 | NULL, |
5496878c | 1914 | netdev_dpdk_construct, |
58397e6c | 1915 | netdev_dpdk_destruct, |
7251515e | 1916 | netdev_dpdk_set_multiq, |
58397e6c KT |
1917 | netdev_dpdk_eth_send, |
1918 | netdev_dpdk_get_carrier, | |
1919 | netdev_dpdk_get_stats, | |
1920 | netdev_dpdk_get_features, | |
1921 | netdev_dpdk_get_status, | |
1922 | netdev_dpdk_rxq_recv); | |
95fb793a | 1923 | |
1924 | const struct netdev_class dpdk_ring_class = | |
1925 | NETDEV_DPDK_CLASS( | |
1926 | "dpdkr", | |
033e9df2 | 1927 | NULL, |
5496878c | 1928 | netdev_dpdk_ring_construct, |
58397e6c KT |
1929 | netdev_dpdk_destruct, |
1930 | NULL, | |
1931 | netdev_dpdk_ring_send, | |
1932 | netdev_dpdk_get_carrier, | |
1933 | netdev_dpdk_get_stats, | |
1934 | netdev_dpdk_get_features, | |
1935 | netdev_dpdk_get_status, | |
1936 | netdev_dpdk_rxq_recv); | |
1937 | ||
1938 | const struct netdev_class dpdk_vhost_class = | |
1939 | NETDEV_DPDK_CLASS( | |
1940 | "dpdkvhost", | |
1941 | dpdk_vhost_class_init, | |
1942 | netdev_dpdk_vhost_construct, | |
1943 | netdev_dpdk_vhost_destruct, | |
1944 | netdev_dpdk_vhost_set_multiq, | |
1945 | netdev_dpdk_vhost_send, | |
1946 | netdev_dpdk_vhost_get_carrier, | |
1947 | netdev_dpdk_vhost_get_stats, | |
1948 | NULL, | |
7251515e | 1949 | NULL, |
58397e6c | 1950 | netdev_dpdk_vhost_rxq_recv); |
95fb793a | 1951 | |
8a9562d2 PS |
1952 | void |
1953 | netdev_dpdk_register(void) | |
1954 | { | |
95fb793a | 1955 | static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER; |
1956 | ||
033e9df2 DDP |
1957 | if (rte_eal_init_ret) { |
1958 | return; | |
1959 | } | |
1960 | ||
95fb793a | 1961 | if (ovsthread_once_start(&once)) { |
033e9df2 | 1962 | dpdk_common_init(); |
95fb793a | 1963 | netdev_register_provider(&dpdk_class); |
1964 | netdev_register_provider(&dpdk_ring_class); | |
58397e6c | 1965 | netdev_register_provider(&dpdk_vhost_class); |
95fb793a | 1966 | ovsthread_once_done(&once); |
1967 | } | |
8a9562d2 | 1968 | } |
8617afff PS |
1969 | |
1970 | int | |
1971 | pmd_thread_setaffinity_cpu(int cpu) | |
1972 | { | |
1973 | cpu_set_t cpuset; | |
1974 | int err; | |
1975 | ||
1976 | CPU_ZERO(&cpuset); | |
1977 | CPU_SET(cpu, &cpuset); | |
1978 | err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset); | |
1979 | if (err) { | |
1980 | VLOG_ERR("Thread affinity error %d",err); | |
1981 | return err; | |
1982 | } | |
abb5943d AW |
1983 | /* NON_PMD_CORE_ID is reserved for use by non pmd threads. */ |
1984 | ovs_assert(cpu != NON_PMD_CORE_ID); | |
65f13b50 | 1985 | RTE_PER_LCORE(_lcore_id) = cpu; |
8617afff PS |
1986 | |
1987 | return 0; | |
1988 | } | |
db73f716 DDP |
1989 | |
1990 | void | |
1991 | thread_set_nonpmd(void) | |
1992 | { | |
abb5943d AW |
1993 | /* We have to use NON_PMD_CORE_ID to allow non-pmd threads to perform |
1994 | * certain DPDK operations, like rte_eth_dev_configure(). */ | |
1995 | RTE_PER_LCORE(_lcore_id) = NON_PMD_CORE_ID; | |
db73f716 DDP |
1996 | } |
1997 | ||
1998 | static bool | |
1999 | thread_is_pmd(void) | |
2000 | { | |
abb5943d | 2001 | return rte_lcore_id() != NON_PMD_CORE_ID; |
db73f716 | 2002 | } |