1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2016-2018 Intel Corporation
5 #include <rte_memcpy.h>
7 #include <rte_ethdev.h>
10 #include <rte_errno.h>
11 #include <rte_string_fns.h>
13 #include "rte_pdump.h"
15 #define DEVICE_ID_SIZE 64
16 /* Macros for printing using RTE_LOG */
17 #define RTE_LOGTYPE_PDUMP RTE_LOGTYPE_USER1
19 /* Used for the multi-process communication */
20 #define PDUMP_MP "mp_pdump"
22 enum pdump_operation {
31 struct pdump_request {
37 char device[DEVICE_ID_SIZE];
39 struct rte_ring *ring;
40 struct rte_mempool *mp;
44 char device[DEVICE_ID_SIZE];
46 struct rte_ring *ring;
47 struct rte_mempool *mp;
53 struct pdump_response {
59 static struct pdump_rxtx_cbs {
60 struct rte_ring *ring;
61 struct rte_mempool *mp;
62 const struct rte_eth_rxtx_callback *cb;
64 } rx_cbs[RTE_MAX_ETHPORTS][RTE_MAX_QUEUES_PER_PORT],
65 tx_cbs[RTE_MAX_ETHPORTS][RTE_MAX_QUEUES_PER_PORT];
68 pdump_pktmbuf_copy_data(struct rte_mbuf *seg, const struct rte_mbuf *m)
70 if (rte_pktmbuf_tailroom(seg) < m->data_len) {
72 "User mempool: insufficient data_len of mbuf\n");
77 seg->vlan_tci = m->vlan_tci;
79 seg->tx_offload = m->tx_offload;
80 seg->ol_flags = m->ol_flags;
81 seg->packet_type = m->packet_type;
82 seg->vlan_tci_outer = m->vlan_tci_outer;
83 seg->data_len = m->data_len;
84 seg->pkt_len = seg->data_len;
85 rte_memcpy(rte_pktmbuf_mtod(seg, void *),
86 rte_pktmbuf_mtod(m, void *),
87 rte_pktmbuf_data_len(seg));
92 static inline struct rte_mbuf *
93 pdump_pktmbuf_copy(struct rte_mbuf *m, struct rte_mempool *mp)
95 struct rte_mbuf *m_dup, *seg, **prev;
99 m_dup = rte_pktmbuf_alloc(mp);
100 if (unlikely(m_dup == NULL))
110 if (pdump_pktmbuf_copy_data(seg, m) < 0) {
112 rte_pktmbuf_free_seg(seg);
113 rte_pktmbuf_free(m_dup);
118 } while ((m = m->next) != NULL &&
119 (seg = rte_pktmbuf_alloc(mp)) != NULL);
122 m_dup->nb_segs = nseg;
123 m_dup->pkt_len = pktlen;
125 /* Allocation of new indirect segment failed */
126 if (unlikely(seg == NULL)) {
127 rte_pktmbuf_free(m_dup);
131 __rte_mbuf_sanity_check(m_dup, 1);
136 pdump_copy(struct rte_mbuf **pkts, uint16_t nb_pkts, void *user_params)
141 struct rte_mbuf *dup_bufs[nb_pkts];
142 struct pdump_rxtx_cbs *cbs;
143 struct rte_ring *ring;
144 struct rte_mempool *mp;
150 for (i = 0; i < nb_pkts; i++) {
151 p = pdump_pktmbuf_copy(pkts[i], mp);
153 dup_bufs[d_pkts++] = p;
156 ring_enq = rte_ring_enqueue_burst(ring, (void *)dup_bufs, d_pkts, NULL);
157 if (unlikely(ring_enq < d_pkts)) {
158 RTE_LOG(DEBUG, PDUMP,
159 "only %d of packets enqueued to ring\n", ring_enq);
161 rte_pktmbuf_free(dup_bufs[ring_enq]);
162 } while (++ring_enq < d_pkts);
167 pdump_rx(uint16_t port __rte_unused, uint16_t qidx __rte_unused,
168 struct rte_mbuf **pkts, uint16_t nb_pkts,
169 uint16_t max_pkts __rte_unused,
172 pdump_copy(pkts, nb_pkts, user_params);
177 pdump_tx(uint16_t port __rte_unused, uint16_t qidx __rte_unused,
178 struct rte_mbuf **pkts, uint16_t nb_pkts, void *user_params)
180 pdump_copy(pkts, nb_pkts, user_params);
185 pdump_register_rx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
186 struct rte_ring *ring, struct rte_mempool *mp,
190 struct pdump_rxtx_cbs *cbs = NULL;
192 qid = (queue == RTE_PDUMP_ALL_QUEUES) ? 0 : queue;
193 for (; qid < end_q; qid++) {
194 cbs = &rx_cbs[port][qid];
195 if (cbs && operation == ENABLE) {
198 "failed to add rx callback for port=%d "
199 "and queue=%d, callback already exists\n",
205 cbs->cb = rte_eth_add_first_rx_callback(port, qid,
207 if (cbs->cb == NULL) {
209 "failed to add rx callback, errno=%d\n",
214 if (cbs && operation == DISABLE) {
217 if (cbs->cb == NULL) {
219 "failed to delete non existing rx "
220 "callback for port=%d and queue=%d\n",
224 ret = rte_eth_remove_rx_callback(port, qid, cbs->cb);
227 "failed to remove rx callback, errno=%d\n",
239 pdump_register_tx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
240 struct rte_ring *ring, struct rte_mempool *mp,
245 struct pdump_rxtx_cbs *cbs = NULL;
247 qid = (queue == RTE_PDUMP_ALL_QUEUES) ? 0 : queue;
248 for (; qid < end_q; qid++) {
249 cbs = &tx_cbs[port][qid];
250 if (cbs && operation == ENABLE) {
253 "failed to add tx callback for port=%d "
254 "and queue=%d, callback already exists\n",
260 cbs->cb = rte_eth_add_tx_callback(port, qid, pdump_tx,
262 if (cbs->cb == NULL) {
264 "failed to add tx callback, errno=%d\n",
269 if (cbs && operation == DISABLE) {
272 if (cbs->cb == NULL) {
274 "failed to delete non existing tx "
275 "callback for port=%d and queue=%d\n",
279 ret = rte_eth_remove_tx_callback(port, qid, cbs->cb);
282 "failed to remove tx callback, errno=%d\n",
294 set_pdump_rxtx_cbs(const struct pdump_request *p)
296 uint16_t nb_rx_q = 0, nb_tx_q = 0, end_q, queue;
301 struct rte_ring *ring;
302 struct rte_mempool *mp;
306 if (operation == ENABLE) {
307 ret = rte_eth_dev_get_port_by_name(p->data.en_v1.device,
311 "failed to get port id for device id=%s\n",
312 p->data.en_v1.device);
315 queue = p->data.en_v1.queue;
316 ring = p->data.en_v1.ring;
317 mp = p->data.en_v1.mp;
319 ret = rte_eth_dev_get_port_by_name(p->data.dis_v1.device,
323 "failed to get port id for device id=%s\n",
324 p->data.dis_v1.device);
327 queue = p->data.dis_v1.queue;
328 ring = p->data.dis_v1.ring;
329 mp = p->data.dis_v1.mp;
332 /* validation if packet capture is for all queues */
333 if (queue == RTE_PDUMP_ALL_QUEUES) {
334 struct rte_eth_dev_info dev_info;
336 ret = rte_eth_dev_info_get(port, &dev_info);
339 "Error during getting device (port %u) info: %s\n",
340 port, strerror(-ret));
344 nb_rx_q = dev_info.nb_rx_queues;
345 nb_tx_q = dev_info.nb_tx_queues;
346 if (nb_rx_q == 0 && flags & RTE_PDUMP_FLAG_RX) {
348 "number of rx queues cannot be 0\n");
351 if (nb_tx_q == 0 && flags & RTE_PDUMP_FLAG_TX) {
353 "number of tx queues cannot be 0\n");
356 if ((nb_tx_q == 0 || nb_rx_q == 0) &&
357 flags == RTE_PDUMP_FLAG_RXTX) {
359 "both tx&rx queues must be non zero\n");
364 /* register RX callback */
365 if (flags & RTE_PDUMP_FLAG_RX) {
366 end_q = (queue == RTE_PDUMP_ALL_QUEUES) ? nb_rx_q : queue + 1;
367 ret = pdump_register_rx_callbacks(end_q, port, queue, ring, mp,
373 /* register TX callback */
374 if (flags & RTE_PDUMP_FLAG_TX) {
375 end_q = (queue == RTE_PDUMP_ALL_QUEUES) ? nb_tx_q : queue + 1;
376 ret = pdump_register_tx_callbacks(end_q, port, queue, ring, mp,
386 pdump_server(const struct rte_mp_msg *mp_msg, const void *peer)
388 struct rte_mp_msg mp_resp;
389 const struct pdump_request *cli_req;
390 struct pdump_response *resp = (struct pdump_response *)&mp_resp.param;
392 /* recv client requests */
393 if (mp_msg->len_param != sizeof(*cli_req)) {
394 RTE_LOG(ERR, PDUMP, "failed to recv from client\n");
395 resp->err_value = -EINVAL;
397 cli_req = (const struct pdump_request *)mp_msg->param;
398 resp->ver = cli_req->ver;
399 resp->res_op = cli_req->op;
400 resp->err_value = set_pdump_rxtx_cbs(cli_req);
403 strlcpy(mp_resp.name, PDUMP_MP, RTE_MP_MAX_NAME_LEN);
404 mp_resp.len_param = sizeof(*resp);
406 if (rte_mp_reply(&mp_resp, peer) < 0) {
407 RTE_LOG(ERR, PDUMP, "failed to send to client:%s, %s:%d\n",
408 strerror(rte_errno), __func__, __LINE__);
418 int ret = rte_mp_action_register(PDUMP_MP, pdump_server);
419 if (ret && rte_errno != ENOTSUP)
425 rte_pdump_uninit(void)
427 rte_mp_action_unregister(PDUMP_MP);
433 pdump_validate_ring_mp(struct rte_ring *ring, struct rte_mempool *mp)
435 if (ring == NULL || mp == NULL) {
436 RTE_LOG(ERR, PDUMP, "NULL ring or mempool are passed %s:%d\n",
441 if (mp->flags & MEMPOOL_F_SP_PUT || mp->flags & MEMPOOL_F_SC_GET) {
442 RTE_LOG(ERR, PDUMP, "mempool with either SP or SC settings"
443 " is not valid for pdump, should have MP and MC settings\n");
447 if (ring->prod.single || ring->cons.single) {
448 RTE_LOG(ERR, PDUMP, "ring with either SP or SC settings"
449 " is not valid for pdump, should have MP and MC settings\n");
458 pdump_validate_flags(uint32_t flags)
460 if (flags != RTE_PDUMP_FLAG_RX && flags != RTE_PDUMP_FLAG_TX &&
461 flags != RTE_PDUMP_FLAG_RXTX) {
463 "invalid flags, should be either rx/tx/rxtx\n");
472 pdump_validate_port(uint16_t port, char *name)
476 if (port >= RTE_MAX_ETHPORTS) {
477 RTE_LOG(ERR, PDUMP, "Invalid port id %u, %s:%d\n", port,
483 ret = rte_eth_dev_get_name_by_port(port, name);
486 "port id to name mapping failed for port id=%u, %s:%d\n",
487 port, __func__, __LINE__);
496 pdump_prepare_client_request(char *device, uint16_t queue,
499 struct rte_ring *ring,
500 struct rte_mempool *mp,
504 struct rte_mp_msg mp_req, *mp_rep;
505 struct rte_mp_reply mp_reply;
506 struct timespec ts = {.tv_sec = 5, .tv_nsec = 0};
507 struct pdump_request *req = (struct pdump_request *)mp_req.param;
508 struct pdump_response *resp;
513 if ((operation & ENABLE) != 0) {
514 strlcpy(req->data.en_v1.device, device,
515 sizeof(req->data.en_v1.device));
516 req->data.en_v1.queue = queue;
517 req->data.en_v1.ring = ring;
518 req->data.en_v1.mp = mp;
519 req->data.en_v1.filter = filter;
521 strlcpy(req->data.dis_v1.device, device,
522 sizeof(req->data.dis_v1.device));
523 req->data.dis_v1.queue = queue;
524 req->data.dis_v1.ring = NULL;
525 req->data.dis_v1.mp = NULL;
526 req->data.dis_v1.filter = NULL;
529 strlcpy(mp_req.name, PDUMP_MP, RTE_MP_MAX_NAME_LEN);
530 mp_req.len_param = sizeof(*req);
532 if (rte_mp_request_sync(&mp_req, &mp_reply, &ts) == 0) {
533 mp_rep = &mp_reply.msgs[0];
534 resp = (struct pdump_response *)mp_rep->param;
535 rte_errno = resp->err_value;
536 if (!resp->err_value)
543 "client request for pdump enable/disable failed\n");
548 rte_pdump_enable(uint16_t port, uint16_t queue, uint32_t flags,
549 struct rte_ring *ring,
550 struct rte_mempool *mp,
555 char name[DEVICE_ID_SIZE];
557 ret = pdump_validate_port(port, name);
560 ret = pdump_validate_ring_mp(ring, mp);
563 ret = pdump_validate_flags(flags);
567 ret = pdump_prepare_client_request(name, queue, flags,
568 ENABLE, ring, mp, filter);
574 rte_pdump_enable_by_deviceid(char *device_id, uint16_t queue,
576 struct rte_ring *ring,
577 struct rte_mempool *mp,
582 ret = pdump_validate_ring_mp(ring, mp);
585 ret = pdump_validate_flags(flags);
589 ret = pdump_prepare_client_request(device_id, queue, flags,
590 ENABLE, ring, mp, filter);
596 rte_pdump_disable(uint16_t port, uint16_t queue, uint32_t flags)
599 char name[DEVICE_ID_SIZE];
601 ret = pdump_validate_port(port, name);
604 ret = pdump_validate_flags(flags);
608 ret = pdump_prepare_client_request(name, queue, flags,
609 DISABLE, NULL, NULL, NULL);
615 rte_pdump_disable_by_deviceid(char *device_id, uint16_t queue,
620 ret = pdump_validate_flags(flags);
624 ret = pdump_prepare_client_request(device_id, queue, flags,
625 DISABLE, NULL, NULL, NULL);