4 * Copyright(c) 2014 John W. Linville <linville@tuxdriver.com>
6 * Originally based upon librte_pmd_pcap code:
8 * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
9 * Copyright(c) 2014 6WIND S.A.
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * * Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * * Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in
20 * the documentation and/or other materials provided with the
22 * * Neither the name of Intel Corporation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 #include <rte_ethdev.h>
41 #include <rte_malloc.h>
42 #include <rte_kvargs.h>
45 #include <linux/if_ether.h>
46 #include <linux/if_packet.h>
47 #include <arpa/inet.h>
49 #include <sys/types.h>
50 #include <sys/socket.h>
51 #include <sys/ioctl.h>
56 #define ETH_AF_PACKET_IFACE_ARG "iface"
57 #define ETH_AF_PACKET_NUM_Q_ARG "qpairs"
58 #define ETH_AF_PACKET_BLOCKSIZE_ARG "blocksz"
59 #define ETH_AF_PACKET_FRAMESIZE_ARG "framesz"
60 #define ETH_AF_PACKET_FRAMECOUNT_ARG "framecnt"
62 #define DFLT_BLOCK_SIZE (1 << 12)
63 #define DFLT_FRAME_SIZE (1 << 11)
64 #define DFLT_FRAME_COUNT (1 << 9)
66 #define RTE_PMD_AF_PACKET_MAX_RINGS 16
73 unsigned int framecount;
74 unsigned int framenum;
76 struct rte_mempool *mb_pool;
79 volatile unsigned long rx_pkts;
80 volatile unsigned long err_pkts;
88 unsigned int framecount;
89 unsigned int framenum;
91 volatile unsigned long tx_pkts;
92 volatile unsigned long err_pkts;
95 struct pmd_internals {
99 struct ether_addr eth_addr;
101 struct tpacket_req req;
103 struct pkt_rx_queue rx_queue[RTE_PMD_AF_PACKET_MAX_RINGS];
104 struct pkt_tx_queue tx_queue[RTE_PMD_AF_PACKET_MAX_RINGS];
107 static const char *valid_arguments[] = {
108 ETH_AF_PACKET_IFACE_ARG,
109 ETH_AF_PACKET_NUM_Q_ARG,
110 ETH_AF_PACKET_BLOCKSIZE_ARG,
111 ETH_AF_PACKET_FRAMESIZE_ARG,
112 ETH_AF_PACKET_FRAMECOUNT_ARG,
116 static const char *drivername = "AF_PACKET PMD";
118 static struct rte_eth_link pmd_link = {
119 .link_speed = ETH_SPEED_NUM_10G,
120 .link_duplex = ETH_LINK_FULL_DUPLEX,
121 .link_status = ETH_LINK_DOWN,
122 .link_autoneg = ETH_LINK_SPEED_AUTONEG
126 eth_af_packet_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
129 struct tpacket2_hdr *ppd;
130 struct rte_mbuf *mbuf;
132 struct pkt_rx_queue *pkt_q = queue;
134 unsigned int framecount, framenum;
136 if (unlikely(nb_pkts == 0))
140 * Reads the given number of packets from the AF_PACKET socket one by
141 * one and copies the packet data into a newly allocated mbuf.
143 framecount = pkt_q->framecount;
144 framenum = pkt_q->framenum;
145 for (i = 0; i < nb_pkts; i++) {
146 /* point at the next incoming frame */
147 ppd = (struct tpacket2_hdr *) pkt_q->rd[framenum].iov_base;
148 if ((ppd->tp_status & TP_STATUS_USER) == 0)
151 /* allocate the next mbuf */
152 mbuf = rte_pktmbuf_alloc(pkt_q->mb_pool);
153 if (unlikely(mbuf == NULL))
156 /* packet will fit in the mbuf, go ahead and receive it */
157 rte_pktmbuf_pkt_len(mbuf) = rte_pktmbuf_data_len(mbuf) = ppd->tp_snaplen;
158 pbuf = (uint8_t *) ppd + ppd->tp_mac;
159 memcpy(rte_pktmbuf_mtod(mbuf, void *), pbuf, rte_pktmbuf_data_len(mbuf));
161 /* release incoming frame and advance ring buffer */
162 ppd->tp_status = TP_STATUS_KERNEL;
163 if (++framenum >= framecount)
165 mbuf->port = pkt_q->in_port;
167 /* account for the receive frame */
171 pkt_q->framenum = framenum;
172 pkt_q->rx_pkts += num_rx;
177 * Callback to handle sending packets through a real NIC.
180 eth_af_packet_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
182 struct tpacket2_hdr *ppd;
183 struct rte_mbuf *mbuf;
185 unsigned int framecount, framenum;
187 struct pkt_tx_queue *pkt_q = queue;
191 if (unlikely(nb_pkts == 0))
194 memset(&pfd, 0, sizeof(pfd));
195 pfd.fd = pkt_q->sockfd;
196 pfd.events = POLLOUT;
199 framecount = pkt_q->framecount;
200 framenum = pkt_q->framenum;
201 ppd = (struct tpacket2_hdr *) pkt_q->rd[framenum].iov_base;
202 for (i = 0; i < nb_pkts; i++) {
203 /* point at the next incoming frame */
204 if ((ppd->tp_status != TP_STATUS_AVAILABLE) &&
205 (poll(&pfd, 1, -1) < 0))
208 /* copy the tx frame data */
210 pbuf = (uint8_t *) ppd + TPACKET2_HDRLEN -
211 sizeof(struct sockaddr_ll);
212 memcpy(pbuf, rte_pktmbuf_mtod(mbuf, void*), rte_pktmbuf_data_len(mbuf));
213 ppd->tp_len = ppd->tp_snaplen = rte_pktmbuf_data_len(mbuf);
215 /* release incoming frame and advance ring buffer */
216 ppd->tp_status = TP_STATUS_SEND_REQUEST;
217 if (++framenum >= framecount)
219 ppd = (struct tpacket2_hdr *) pkt_q->rd[framenum].iov_base;
222 rte_pktmbuf_free(mbuf);
225 /* kick-off transmits */
226 if (sendto(pkt_q->sockfd, NULL, 0, MSG_DONTWAIT, NULL, 0) == -1)
227 return 0; /* error sending -- no packets transmitted */
229 pkt_q->framenum = framenum;
230 pkt_q->tx_pkts += num_tx;
231 pkt_q->err_pkts += nb_pkts - num_tx;
236 eth_dev_start(struct rte_eth_dev *dev)
238 dev->data->dev_link.link_status = ETH_LINK_UP;
243 * This function gets called when the current port gets stopped.
246 eth_dev_stop(struct rte_eth_dev *dev)
250 struct pmd_internals *internals = dev->data->dev_private;
252 for (i = 0; i < internals->nb_queues; i++) {
253 sockfd = internals->rx_queue[i].sockfd;
256 sockfd = internals->tx_queue[i].sockfd;
261 dev->data->dev_link.link_status = ETH_LINK_DOWN;
265 eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
271 eth_dev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
273 struct pmd_internals *internals = dev->data->dev_private;
275 dev_info->driver_name = drivername;
276 dev_info->if_index = internals->if_index;
277 dev_info->max_mac_addrs = 1;
278 dev_info->max_rx_pktlen = (uint32_t)ETH_FRAME_LEN;
279 dev_info->max_rx_queues = (uint16_t)internals->nb_queues;
280 dev_info->max_tx_queues = (uint16_t)internals->nb_queues;
281 dev_info->min_rx_bufsize = 0;
282 dev_info->pci_dev = NULL;
286 eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats)
289 unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
290 const struct pmd_internals *internal = dev->data->dev_private;
292 imax = (internal->nb_queues < RTE_ETHDEV_QUEUE_STAT_CNTRS ?
293 internal->nb_queues : RTE_ETHDEV_QUEUE_STAT_CNTRS);
294 for (i = 0; i < imax; i++) {
295 igb_stats->q_ipackets[i] = internal->rx_queue[i].rx_pkts;
296 rx_total += igb_stats->q_ipackets[i];
299 imax = (internal->nb_queues < RTE_ETHDEV_QUEUE_STAT_CNTRS ?
300 internal->nb_queues : RTE_ETHDEV_QUEUE_STAT_CNTRS);
301 for (i = 0; i < imax; i++) {
302 igb_stats->q_opackets[i] = internal->tx_queue[i].tx_pkts;
303 igb_stats->q_errors[i] = internal->tx_queue[i].err_pkts;
304 tx_total += igb_stats->q_opackets[i];
305 tx_err_total += igb_stats->q_errors[i];
308 igb_stats->ipackets = rx_total;
309 igb_stats->opackets = tx_total;
310 igb_stats->oerrors = tx_err_total;
314 eth_stats_reset(struct rte_eth_dev *dev)
317 struct pmd_internals *internal = dev->data->dev_private;
319 for (i = 0; i < internal->nb_queues; i++)
320 internal->rx_queue[i].rx_pkts = 0;
322 for (i = 0; i < internal->nb_queues; i++) {
323 internal->tx_queue[i].tx_pkts = 0;
324 internal->tx_queue[i].err_pkts = 0;
329 eth_dev_close(struct rte_eth_dev *dev __rte_unused)
334 eth_queue_release(void *q __rte_unused)
339 eth_link_update(struct rte_eth_dev *dev __rte_unused,
340 int wait_to_complete __rte_unused)
346 eth_rx_queue_setup(struct rte_eth_dev *dev,
347 uint16_t rx_queue_id,
348 uint16_t nb_rx_desc __rte_unused,
349 unsigned int socket_id __rte_unused,
350 const struct rte_eth_rxconf *rx_conf __rte_unused,
351 struct rte_mempool *mb_pool)
353 struct pmd_internals *internals = dev->data->dev_private;
354 struct pkt_rx_queue *pkt_q = &internals->rx_queue[rx_queue_id];
357 pkt_q->mb_pool = mb_pool;
359 /* Now get the space available for data in the mbuf */
360 buf_size = (uint16_t)(rte_pktmbuf_data_room_size(pkt_q->mb_pool) -
361 RTE_PKTMBUF_HEADROOM);
363 if (ETH_FRAME_LEN > buf_size) {
365 "%s: %d bytes will not fit in mbuf (%d bytes)\n",
366 dev->data->name, ETH_FRAME_LEN, buf_size);
370 dev->data->rx_queues[rx_queue_id] = pkt_q;
371 pkt_q->in_port = dev->data->port_id;
377 eth_tx_queue_setup(struct rte_eth_dev *dev,
378 uint16_t tx_queue_id,
379 uint16_t nb_tx_desc __rte_unused,
380 unsigned int socket_id __rte_unused,
381 const struct rte_eth_txconf *tx_conf __rte_unused)
384 struct pmd_internals *internals = dev->data->dev_private;
386 dev->data->tx_queues[tx_queue_id] = &internals->tx_queue[tx_queue_id];
390 static const struct eth_dev_ops ops = {
391 .dev_start = eth_dev_start,
392 .dev_stop = eth_dev_stop,
393 .dev_close = eth_dev_close,
394 .dev_configure = eth_dev_configure,
395 .dev_infos_get = eth_dev_info,
396 .rx_queue_setup = eth_rx_queue_setup,
397 .tx_queue_setup = eth_tx_queue_setup,
398 .rx_queue_release = eth_queue_release,
399 .tx_queue_release = eth_queue_release,
400 .link_update = eth_link_update,
401 .stats_get = eth_stats_get,
402 .stats_reset = eth_stats_reset,
406 * Opens an AF_PACKET socket
409 open_packet_iface(const char *key __rte_unused,
410 const char *value __rte_unused,
413 int *sockfd = extra_args;
415 /* Open an AF_PACKET socket... */
416 *sockfd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
418 RTE_LOG(ERR, PMD, "Could not open AF_PACKET socket\n");
426 rte_pmd_init_internals(const char *name,
428 const unsigned nb_queues,
429 unsigned int blocksize,
430 unsigned int blockcnt,
431 unsigned int framesize,
432 unsigned int framecnt,
433 const unsigned numa_node,
434 struct pmd_internals **internals,
435 struct rte_eth_dev **eth_dev,
436 struct rte_kvargs *kvlist)
438 struct rte_eth_dev_data *data = NULL;
439 struct rte_kvargs_pair *pair = NULL;
443 struct sockaddr_ll sockaddr;
444 struct tpacket_req *req;
445 struct pkt_rx_queue *rx_queue;
446 struct pkt_tx_queue *tx_queue;
447 int rc, tpver, discard;
449 unsigned int i, q, rdsize;
450 int fanout_arg __rte_unused, bypass __rte_unused;
452 for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
453 pair = &kvlist->pairs[k_idx];
454 if (strstr(pair->key, ETH_AF_PACKET_IFACE_ARG) != NULL)
459 "%s: no interface specified for AF_PACKET ethdev\n",
465 "%s: creating AF_PACKET-backed ethdev on numa socket %u\n",
469 * now do all data allocation - for eth_dev structure, dummy pci driver
470 * and internal (private) data
472 data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
476 *internals = rte_zmalloc_socket(name, sizeof(**internals),
478 if (*internals == NULL)
481 for (q = 0; q < nb_queues; q++) {
482 (*internals)->rx_queue[q].map = MAP_FAILED;
483 (*internals)->tx_queue[q].map = MAP_FAILED;
486 req = &((*internals)->req);
488 req->tp_block_size = blocksize;
489 req->tp_block_nr = blockcnt;
490 req->tp_frame_size = framesize;
491 req->tp_frame_nr = framecnt;
493 ifnamelen = strlen(pair->value);
494 if (ifnamelen < sizeof(ifr.ifr_name)) {
495 memcpy(ifr.ifr_name, pair->value, ifnamelen);
496 ifr.ifr_name[ifnamelen] = '\0';
499 "%s: I/F name too long (%s)\n",
503 if (ioctl(sockfd, SIOCGIFINDEX, &ifr) == -1) {
505 "%s: ioctl failed (SIOCGIFINDEX)\n",
509 (*internals)->if_index = ifr.ifr_ifindex;
511 if (ioctl(sockfd, SIOCGIFHWADDR, &ifr) == -1) {
513 "%s: ioctl failed (SIOCGIFHWADDR)\n",
517 memcpy(&(*internals)->eth_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
519 memset(&sockaddr, 0, sizeof(sockaddr));
520 sockaddr.sll_family = AF_PACKET;
521 sockaddr.sll_protocol = htons(ETH_P_ALL);
522 sockaddr.sll_ifindex = (*internals)->if_index;
524 #if defined(PACKET_FANOUT)
525 fanout_arg = (getpid() ^ (*internals)->if_index) & 0xffff;
526 fanout_arg |= (PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_DEFRAG) << 16;
527 #if defined(PACKET_FANOUT_FLAG_ROLLOVER)
528 fanout_arg |= PACKET_FANOUT_FLAG_ROLLOVER << 16;
532 for (q = 0; q < nb_queues; q++) {
533 /* Open an AF_PACKET socket for this queue... */
534 qsockfd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
537 "%s: could not open AF_PACKET socket\n",
543 rc = setsockopt(qsockfd, SOL_PACKET, PACKET_VERSION,
544 &tpver, sizeof(tpver));
547 "%s: could not set PACKET_VERSION on AF_PACKET "
548 "socket for %s\n", name, pair->value);
553 rc = setsockopt(qsockfd, SOL_PACKET, PACKET_LOSS,
554 &discard, sizeof(discard));
557 "%s: could not set PACKET_LOSS on "
558 "AF_PACKET socket for %s\n", name, pair->value);
562 #if defined(PACKET_QDISC_BYPASS)
564 rc = setsockopt(qsockfd, SOL_PACKET, PACKET_QDISC_BYPASS,
565 &bypass, sizeof(bypass));
568 "%s: could not set PACKET_QDISC_BYPASS "
569 "on AF_PACKET socket for %s\n", name,
575 rc = setsockopt(qsockfd, SOL_PACKET, PACKET_RX_RING, req, sizeof(*req));
578 "%s: could not set PACKET_RX_RING on AF_PACKET "
579 "socket for %s\n", name, pair->value);
583 rc = setsockopt(qsockfd, SOL_PACKET, PACKET_TX_RING, req, sizeof(*req));
586 "%s: could not set PACKET_TX_RING on AF_PACKET "
587 "socket for %s\n", name, pair->value);
591 rx_queue = &((*internals)->rx_queue[q]);
592 rx_queue->framecount = req->tp_frame_nr;
594 rx_queue->map = mmap(NULL, 2 * req->tp_block_size * req->tp_block_nr,
595 PROT_READ | PROT_WRITE, MAP_SHARED | MAP_LOCKED,
597 if (rx_queue->map == MAP_FAILED) {
599 "%s: call to mmap failed on AF_PACKET socket for %s\n",
604 /* rdsize is same for both Tx and Rx */
605 rdsize = req->tp_frame_nr * sizeof(*(rx_queue->rd));
607 rx_queue->rd = rte_zmalloc_socket(name, rdsize, 0, numa_node);
608 if (rx_queue->rd == NULL)
610 for (i = 0; i < req->tp_frame_nr; ++i) {
611 rx_queue->rd[i].iov_base = rx_queue->map + (i * framesize);
612 rx_queue->rd[i].iov_len = req->tp_frame_size;
614 rx_queue->sockfd = qsockfd;
616 tx_queue = &((*internals)->tx_queue[q]);
617 tx_queue->framecount = req->tp_frame_nr;
619 tx_queue->map = rx_queue->map + req->tp_block_size * req->tp_block_nr;
621 tx_queue->rd = rte_zmalloc_socket(name, rdsize, 0, numa_node);
622 if (tx_queue->rd == NULL)
624 for (i = 0; i < req->tp_frame_nr; ++i) {
625 tx_queue->rd[i].iov_base = tx_queue->map + (i * framesize);
626 tx_queue->rd[i].iov_len = req->tp_frame_size;
628 tx_queue->sockfd = qsockfd;
630 rc = bind(qsockfd, (const struct sockaddr*)&sockaddr, sizeof(sockaddr));
633 "%s: could not bind AF_PACKET socket to %s\n",
638 #if defined(PACKET_FANOUT)
639 rc = setsockopt(qsockfd, SOL_PACKET, PACKET_FANOUT,
640 &fanout_arg, sizeof(fanout_arg));
643 "%s: could not set PACKET_FANOUT on AF_PACKET socket "
644 "for %s\n", name, pair->value);
650 /* reserve an ethdev entry */
651 *eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_VIRTUAL);
652 if (*eth_dev == NULL)
656 * now put it all together
657 * - store queue data in internals,
658 * - store numa_node in eth_dev
659 * - point eth_dev_data to internals
660 * - and point eth_dev structure to new eth_dev_data structure
663 (*internals)->nb_queues = nb_queues;
665 data->dev_private = *internals;
666 data->port_id = (*eth_dev)->data->port_id;
667 data->nb_rx_queues = (uint16_t)nb_queues;
668 data->nb_tx_queues = (uint16_t)nb_queues;
669 data->dev_link = pmd_link;
670 data->mac_addrs = &(*internals)->eth_addr;
672 (*eth_dev)->data->name, strlen((*eth_dev)->data->name));
674 (*eth_dev)->data = data;
675 (*eth_dev)->dev_ops = &ops;
676 (*eth_dev)->driver = NULL;
677 (*eth_dev)->data->dev_flags = RTE_ETH_DEV_DETACHABLE;
678 (*eth_dev)->data->drv_name = drivername;
679 (*eth_dev)->data->kdrv = RTE_KDRV_NONE;
680 (*eth_dev)->data->numa_node = numa_node;
687 for (q = 0; q < nb_queues; q++) {
688 munmap((*internals)->rx_queue[q].map,
689 2 * req->tp_block_size * req->tp_block_nr);
691 rte_free((*internals)->rx_queue[q].rd);
692 rte_free((*internals)->tx_queue[q].rd);
693 if (((*internals)->rx_queue[q].sockfd != 0) &&
694 ((*internals)->rx_queue[q].sockfd != qsockfd))
695 close((*internals)->rx_queue[q].sockfd);
697 rte_free(*internals);
704 rte_eth_from_packet(const char *name,
706 const unsigned numa_node,
707 struct rte_kvargs *kvlist)
709 struct pmd_internals *internals = NULL;
710 struct rte_eth_dev *eth_dev = NULL;
711 struct rte_kvargs_pair *pair = NULL;
713 unsigned int blockcount;
714 unsigned int blocksize = DFLT_BLOCK_SIZE;
715 unsigned int framesize = DFLT_FRAME_SIZE;
716 unsigned int framecount = DFLT_FRAME_COUNT;
717 unsigned int qpairs = 1;
719 /* do some parameter checking */
724 * Walk arguments for configurable settings
726 for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
727 pair = &kvlist->pairs[k_idx];
728 if (strstr(pair->key, ETH_AF_PACKET_NUM_Q_ARG) != NULL) {
729 qpairs = atoi(pair->value);
731 qpairs > RTE_PMD_AF_PACKET_MAX_RINGS) {
733 "%s: invalid qpairs value\n",
739 if (strstr(pair->key, ETH_AF_PACKET_BLOCKSIZE_ARG) != NULL) {
740 blocksize = atoi(pair->value);
743 "%s: invalid blocksize value\n",
749 if (strstr(pair->key, ETH_AF_PACKET_FRAMESIZE_ARG) != NULL) {
750 framesize = atoi(pair->value);
753 "%s: invalid framesize value\n",
759 if (strstr(pair->key, ETH_AF_PACKET_FRAMECOUNT_ARG) != NULL) {
760 framecount = atoi(pair->value);
763 "%s: invalid framecount value\n",
771 if (framesize > blocksize) {
773 "%s: AF_PACKET MMAP frame size exceeds block size!\n",
778 blockcount = framecount / (blocksize / framesize);
781 "%s: invalid AF_PACKET MMAP parameters\n", name);
785 RTE_LOG(INFO, PMD, "%s: AF_PACKET MMAP parameters:\n", name);
786 RTE_LOG(INFO, PMD, "%s:\tblock size %d\n", name, blocksize);
787 RTE_LOG(INFO, PMD, "%s:\tblock count %d\n", name, blockcount);
788 RTE_LOG(INFO, PMD, "%s:\tframe size %d\n", name, framesize);
789 RTE_LOG(INFO, PMD, "%s:\tframe count %d\n", name, framecount);
791 if (rte_pmd_init_internals(name, *sockfd, qpairs,
792 blocksize, blockcount,
793 framesize, framecount,
794 numa_node, &internals, ð_dev,
798 eth_dev->rx_pkt_burst = eth_af_packet_rx;
799 eth_dev->tx_pkt_burst = eth_af_packet_tx;
805 rte_pmd_af_packet_devinit(const char *name, const char *params)
809 struct rte_kvargs *kvlist;
812 RTE_LOG(INFO, PMD, "Initializing pmd_af_packet for %s\n", name);
814 numa_node = rte_socket_id();
816 kvlist = rte_kvargs_parse(params, valid_arguments);
817 if (kvlist == NULL) {
823 * If iface argument is passed we open the NICs and use them for
826 if (rte_kvargs_count(kvlist, ETH_AF_PACKET_IFACE_ARG) == 1) {
828 ret = rte_kvargs_process(kvlist, ETH_AF_PACKET_IFACE_ARG,
829 &open_packet_iface, &sockfd);
834 ret = rte_eth_from_packet(name, &sockfd, numa_node, kvlist);
835 close(sockfd); /* no longer needed */
838 rte_kvargs_free(kvlist);
843 rte_pmd_af_packet_devuninit(const char *name)
845 struct rte_eth_dev *eth_dev = NULL;
846 struct pmd_internals *internals;
849 RTE_LOG(INFO, PMD, "Closing AF_PACKET ethdev on numa socket %u\n",
855 /* find the ethdev entry */
856 eth_dev = rte_eth_dev_allocated(name);
860 internals = eth_dev->data->dev_private;
861 for (q = 0; q < internals->nb_queues; q++) {
862 rte_free(internals->rx_queue[q].rd);
863 rte_free(internals->tx_queue[q].rd);
866 rte_free(eth_dev->data->dev_private);
867 rte_free(eth_dev->data);
869 rte_eth_dev_release_port(eth_dev);
874 static struct rte_driver pmd_af_packet_drv = {
875 .name = "eth_af_packet",
877 .init = rte_pmd_af_packet_devinit,
878 .uninit = rte_pmd_af_packet_devuninit,
881 PMD_REGISTER_DRIVER(pmd_af_packet_drv);