4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5 * Copyright 2014 6WIND S.A.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
18 * * Neither the name of Intel Corporation nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 #include <sys/queue.h>
45 #include <rte_common.h>
46 #include <rte_byteorder.h>
48 #include <rte_debug.h>
49 #include <rte_cycles.h>
50 #include <rte_memory.h>
51 #include <rte_memcpy.h>
52 #include <rte_memzone.h>
53 #include <rte_launch.h>
55 #include <rte_per_lcore.h>
56 #include <rte_lcore.h>
57 #include <rte_atomic.h>
58 #include <rte_branch_prediction.h>
60 #include <rte_memory.h>
61 #include <rte_mempool.h>
63 #include <rte_memcpy.h>
64 #include <rte_interrupts.h>
66 #include <rte_ether.h>
67 #include <rte_ethdev.h>
72 #include <rte_prefetch.h>
73 #include <rte_string_fns.h>
76 #define IP_DEFTTL 64 /* from RFC 1340. */
77 #define IP_VERSION 0x40
78 #define IP_HDRLEN 0x05 /* default IP header length == five 32-bits words. */
79 #define IP_VHL_DEF (IP_VERSION | IP_HDRLEN)
81 #define GRE_KEY_PRESENT 0x2000
83 #define GRE_SUPPORTED_FIELDS GRE_KEY_PRESENT
85 /* We cannot use rte_cpu_to_be_16() on a constant in a switch/case */
86 #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
87 #define _htons(x) ((uint16_t)((((x) & 0x00ffU) << 8) | (((x) & 0xff00U) >> 8)))
92 /* structure that caches offload info for the current packet */
93 struct testpmd_offload_info {
100 uint16_t outer_ethertype;
101 uint16_t outer_l2_len;
102 uint16_t outer_l3_len;
103 uint8_t outer_l4_proto;
107 /* simplified GRE header */
108 struct simple_gre_hdr {
111 } __attribute__((__packed__));
114 get_psd_sum(void *l3_hdr, uint16_t ethertype, uint64_t ol_flags)
116 if (ethertype == _htons(ETHER_TYPE_IPv4))
117 return rte_ipv4_phdr_cksum(l3_hdr, ol_flags);
118 else /* assume ethertype == ETHER_TYPE_IPv6 */
119 return rte_ipv6_phdr_cksum(l3_hdr, ol_flags);
123 get_udptcp_checksum(void *l3_hdr, void *l4_hdr, uint16_t ethertype)
125 if (ethertype == _htons(ETHER_TYPE_IPv4))
126 return rte_ipv4_udptcp_cksum(l3_hdr, l4_hdr);
127 else /* assume ethertype == ETHER_TYPE_IPv6 */
128 return rte_ipv6_udptcp_cksum(l3_hdr, l4_hdr);
131 /* Parse an IPv4 header to fill l3_len, l4_len, and l4_proto */
133 parse_ipv4(struct ipv4_hdr *ipv4_hdr, struct testpmd_offload_info *info)
135 struct tcp_hdr *tcp_hdr;
137 info->l3_len = (ipv4_hdr->version_ihl & 0x0f) * 4;
138 info->l4_proto = ipv4_hdr->next_proto_id;
140 /* only fill l4_len for TCP, it's useful for TSO */
141 if (info->l4_proto == IPPROTO_TCP) {
142 tcp_hdr = (struct tcp_hdr *)((char *)ipv4_hdr + info->l3_len);
143 info->l4_len = (tcp_hdr->data_off & 0xf0) >> 2;
148 /* Parse an IPv6 header to fill l3_len, l4_len, and l4_proto */
150 parse_ipv6(struct ipv6_hdr *ipv6_hdr, struct testpmd_offload_info *info)
152 struct tcp_hdr *tcp_hdr;
154 info->l3_len = sizeof(struct ipv6_hdr);
155 info->l4_proto = ipv6_hdr->proto;
157 /* only fill l4_len for TCP, it's useful for TSO */
158 if (info->l4_proto == IPPROTO_TCP) {
159 tcp_hdr = (struct tcp_hdr *)((char *)ipv6_hdr + info->l3_len);
160 info->l4_len = (tcp_hdr->data_off & 0xf0) >> 2;
166 * Parse an ethernet header to fill the ethertype, l2_len, l3_len and
167 * ipproto. This function is able to recognize IPv4/IPv6 with one optional vlan
168 * header. The l4_len argument is only set in case of TCP (useful for TSO).
171 parse_ethernet(struct ether_hdr *eth_hdr, struct testpmd_offload_info *info)
173 struct ipv4_hdr *ipv4_hdr;
174 struct ipv6_hdr *ipv6_hdr;
176 info->l2_len = sizeof(struct ether_hdr);
177 info->ethertype = eth_hdr->ether_type;
179 if (info->ethertype == _htons(ETHER_TYPE_VLAN)) {
180 struct vlan_hdr *vlan_hdr = (struct vlan_hdr *)(eth_hdr + 1);
182 info->l2_len += sizeof(struct vlan_hdr);
183 info->ethertype = vlan_hdr->eth_proto;
186 switch (info->ethertype) {
187 case _htons(ETHER_TYPE_IPv4):
188 ipv4_hdr = (struct ipv4_hdr *) ((char *)eth_hdr + info->l2_len);
189 parse_ipv4(ipv4_hdr, info);
191 case _htons(ETHER_TYPE_IPv6):
192 ipv6_hdr = (struct ipv6_hdr *) ((char *)eth_hdr + info->l2_len);
193 parse_ipv6(ipv6_hdr, info);
203 /* Parse a vxlan header */
205 parse_vxlan(struct udp_hdr *udp_hdr,
206 struct testpmd_offload_info *info,
209 struct ether_hdr *eth_hdr;
211 /* check udp destination port, 4789 is the default vxlan port
212 * (rfc7348) or that the rx offload flag is set (i40e only
214 if (udp_hdr->dst_port != _htons(4789) &&
215 RTE_ETH_IS_TUNNEL_PKT(pkt_type) == 0)
219 info->outer_ethertype = info->ethertype;
220 info->outer_l2_len = info->l2_len;
221 info->outer_l3_len = info->l3_len;
222 info->outer_l4_proto = info->l4_proto;
224 eth_hdr = (struct ether_hdr *)((char *)udp_hdr +
225 sizeof(struct udp_hdr) +
226 sizeof(struct vxlan_hdr));
228 parse_ethernet(eth_hdr, info);
229 info->l2_len += ETHER_VXLAN_HLEN; /* add udp + vxlan */
232 /* Parse a gre header */
234 parse_gre(struct simple_gre_hdr *gre_hdr, struct testpmd_offload_info *info)
236 struct ether_hdr *eth_hdr;
237 struct ipv4_hdr *ipv4_hdr;
238 struct ipv6_hdr *ipv6_hdr;
241 /* check which fields are supported */
242 if ((gre_hdr->flags & _htons(~GRE_SUPPORTED_FIELDS)) != 0)
245 gre_len += sizeof(struct simple_gre_hdr);
247 if (gre_hdr->flags & _htons(GRE_KEY_PRESENT))
248 gre_len += GRE_KEY_LEN;
250 if (gre_hdr->proto == _htons(ETHER_TYPE_IPv4)) {
252 info->outer_ethertype = info->ethertype;
253 info->outer_l2_len = info->l2_len;
254 info->outer_l3_len = info->l3_len;
255 info->outer_l4_proto = info->l4_proto;
257 ipv4_hdr = (struct ipv4_hdr *)((char *)gre_hdr + gre_len);
259 parse_ipv4(ipv4_hdr, info);
260 info->ethertype = _htons(ETHER_TYPE_IPv4);
263 } else if (gre_hdr->proto == _htons(ETHER_TYPE_IPv6)) {
265 info->outer_ethertype = info->ethertype;
266 info->outer_l2_len = info->l2_len;
267 info->outer_l3_len = info->l3_len;
268 info->outer_l4_proto = info->l4_proto;
270 ipv6_hdr = (struct ipv6_hdr *)((char *)gre_hdr + gre_len);
272 info->ethertype = _htons(ETHER_TYPE_IPv6);
273 parse_ipv6(ipv6_hdr, info);
276 } else if (gre_hdr->proto == _htons(ETHER_TYPE_TEB)) {
278 info->outer_ethertype = info->ethertype;
279 info->outer_l2_len = info->l2_len;
280 info->outer_l3_len = info->l3_len;
281 info->outer_l4_proto = info->l4_proto;
283 eth_hdr = (struct ether_hdr *)((char *)gre_hdr + gre_len);
285 parse_ethernet(eth_hdr, info);
289 info->l2_len += gre_len;
293 /* Parse an encapsulated ip or ipv6 header */
295 parse_encap_ip(void *encap_ip, struct testpmd_offload_info *info)
297 struct ipv4_hdr *ipv4_hdr = encap_ip;
298 struct ipv6_hdr *ipv6_hdr = encap_ip;
301 ip_version = (ipv4_hdr->version_ihl & 0xf0) >> 4;
303 if (ip_version != 4 && ip_version != 6)
307 info->outer_ethertype = info->ethertype;
308 info->outer_l2_len = info->l2_len;
309 info->outer_l3_len = info->l3_len;
311 if (ip_version == 4) {
312 parse_ipv4(ipv4_hdr, info);
313 info->ethertype = _htons(ETHER_TYPE_IPv4);
315 parse_ipv6(ipv6_hdr, info);
316 info->ethertype = _htons(ETHER_TYPE_IPv6);
321 /* modify the IPv4 or IPv4 source address of a packet */
323 change_ip_addresses(void *l3_hdr, uint16_t ethertype)
325 struct ipv4_hdr *ipv4_hdr = l3_hdr;
326 struct ipv6_hdr *ipv6_hdr = l3_hdr;
328 if (ethertype == _htons(ETHER_TYPE_IPv4)) {
330 rte_cpu_to_be_32(rte_be_to_cpu_32(ipv4_hdr->src_addr) + 1);
331 } else if (ethertype == _htons(ETHER_TYPE_IPv6)) {
332 ipv6_hdr->src_addr[15] = ipv6_hdr->src_addr[15] + 1;
336 /* if possible, calculate the checksum of a packet in hw or sw,
337 * depending on the testpmd command line configuration */
339 process_inner_cksums(void *l3_hdr, const struct testpmd_offload_info *info,
340 uint16_t testpmd_ol_flags)
342 struct ipv4_hdr *ipv4_hdr = l3_hdr;
343 struct udp_hdr *udp_hdr;
344 struct tcp_hdr *tcp_hdr;
345 struct sctp_hdr *sctp_hdr;
346 uint64_t ol_flags = 0;
348 if (info->ethertype == _htons(ETHER_TYPE_IPv4)) {
350 ipv4_hdr->hdr_checksum = 0;
352 ol_flags |= PKT_TX_IPV4;
353 if (info->tso_segsz != 0 && info->l4_proto == IPPROTO_TCP) {
354 ol_flags |= PKT_TX_IP_CKSUM;
356 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_IP_CKSUM)
357 ol_flags |= PKT_TX_IP_CKSUM;
359 ipv4_hdr->hdr_checksum =
360 rte_ipv4_cksum(ipv4_hdr);
362 } else if (info->ethertype == _htons(ETHER_TYPE_IPv6))
363 ol_flags |= PKT_TX_IPV6;
365 return 0; /* packet type not supported, nothing to do */
367 if (info->l4_proto == IPPROTO_UDP) {
368 udp_hdr = (struct udp_hdr *)((char *)l3_hdr + info->l3_len);
369 /* do not recalculate udp cksum if it was 0 */
370 if (udp_hdr->dgram_cksum != 0) {
371 udp_hdr->dgram_cksum = 0;
372 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_UDP_CKSUM) {
373 ol_flags |= PKT_TX_UDP_CKSUM;
374 udp_hdr->dgram_cksum = get_psd_sum(l3_hdr,
375 info->ethertype, ol_flags);
377 udp_hdr->dgram_cksum =
378 get_udptcp_checksum(l3_hdr, udp_hdr,
382 } else if (info->l4_proto == IPPROTO_TCP) {
383 tcp_hdr = (struct tcp_hdr *)((char *)l3_hdr + info->l3_len);
385 if (info->tso_segsz != 0) {
386 ol_flags |= PKT_TX_TCP_SEG;
387 tcp_hdr->cksum = get_psd_sum(l3_hdr, info->ethertype,
389 } else if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_TCP_CKSUM) {
390 ol_flags |= PKT_TX_TCP_CKSUM;
391 tcp_hdr->cksum = get_psd_sum(l3_hdr, info->ethertype,
395 get_udptcp_checksum(l3_hdr, tcp_hdr,
398 } else if (info->l4_proto == IPPROTO_SCTP) {
399 sctp_hdr = (struct sctp_hdr *)((char *)l3_hdr + info->l3_len);
401 /* sctp payload must be a multiple of 4 to be
403 if ((testpmd_ol_flags & TESTPMD_TX_OFFLOAD_SCTP_CKSUM) &&
404 ((ipv4_hdr->total_length & 0x3) == 0)) {
405 ol_flags |= PKT_TX_SCTP_CKSUM;
407 /* XXX implement CRC32c, example available in
415 /* Calculate the checksum of outer header (only vxlan is supported,
416 * meaning IP + UDP). The caller already checked that it's a vxlan
419 process_outer_cksums(void *outer_l3_hdr, struct testpmd_offload_info *info,
420 uint16_t testpmd_ol_flags)
422 struct ipv4_hdr *ipv4_hdr = outer_l3_hdr;
423 struct ipv6_hdr *ipv6_hdr = outer_l3_hdr;
424 struct udp_hdr *udp_hdr;
425 uint64_t ol_flags = 0;
427 if (info->outer_ethertype == _htons(ETHER_TYPE_IPv4)) {
428 ipv4_hdr->hdr_checksum = 0;
429 ol_flags |= PKT_TX_OUTER_IPV4;
431 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM)
432 ol_flags |= PKT_TX_OUTER_IP_CKSUM;
434 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
435 } else if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM)
436 ol_flags |= PKT_TX_OUTER_IPV6;
438 if (info->outer_l4_proto != IPPROTO_UDP)
441 /* outer UDP checksum is always done in software as we have no
442 * hardware supporting it today, and no API for it. */
444 udp_hdr = (struct udp_hdr *)((char *)outer_l3_hdr + info->outer_l3_len);
445 /* do not recalculate udp cksum if it was 0 */
446 if (udp_hdr->dgram_cksum != 0) {
447 udp_hdr->dgram_cksum = 0;
448 if (info->outer_ethertype == _htons(ETHER_TYPE_IPv4))
449 udp_hdr->dgram_cksum =
450 rte_ipv4_udptcp_cksum(ipv4_hdr, udp_hdr);
452 udp_hdr->dgram_cksum =
453 rte_ipv6_udptcp_cksum(ipv6_hdr, udp_hdr);
460 * Receive a burst of packets, and for each packet:
461 * - parse packet, and try to recognize a supported packet type (1)
462 * - if it's not a supported packet type, don't touch the packet, else:
463 * - modify the IPs in inner headers and in outer headers if any
464 * - reprocess the checksum of all supported layers. This is done in SW
465 * or HW, depending on testpmd command line configuration
466 * - if TSO is enabled in testpmd command line, also flag the mbuf for TCP
467 * segmentation offload (this implies HW TCP checksum)
468 * Then transmit packets on the output port.
470 * (1) Supported packets are:
471 * Ether / (vlan) / IP|IP6 / UDP|TCP|SCTP .
472 * Ether / (vlan) / outer IP|IP6 / outer UDP / VxLAN / Ether / IP|IP6 /
474 * Ether / (vlan) / outer IP|IP6 / GRE / Ether / IP|IP6 / UDP|TCP|SCTP
475 * Ether / (vlan) / outer IP|IP6 / GRE / IP|IP6 / UDP|TCP|SCTP
476 * Ether / (vlan) / outer IP|IP6 / IP|IP6 / UDP|TCP|SCTP
478 * The testpmd command line for this forward engine sets the flags
479 * TESTPMD_TX_OFFLOAD_* in ports[tx_port].tx_ol_flags. They control
480 * wether a checksum must be calculated in software or in hardware. The
481 * IP, UDP, TCP and SCTP flags always concern the inner layer. The
482 * OUTER_IP is only useful for tunnel packets.
485 pkt_burst_checksum_forward(struct fwd_stream *fs)
487 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
488 struct rte_port *txp;
490 struct ether_hdr *eth_hdr;
491 void *l3_hdr = NULL, *outer_l3_hdr = NULL; /* can be IPv4 or IPv6 */
496 uint16_t testpmd_ol_flags;
497 uint32_t rx_bad_ip_csum;
498 uint32_t rx_bad_l4_csum;
499 struct testpmd_offload_info info;
501 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
504 uint64_t core_cycles;
507 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
508 start_tsc = rte_rdtsc();
511 /* receive a burst of packet */
512 nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
514 if (unlikely(nb_rx == 0))
517 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
518 fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
520 fs->rx_packets += nb_rx;
524 txp = &ports[fs->tx_port];
525 testpmd_ol_flags = txp->tx_ol_flags;
526 memset(&info, 0, sizeof(info));
527 info.tso_segsz = txp->tso_segsz;
529 for (i = 0; i < nb_rx; i++) {
535 /* Update the L3/L4 checksum error packet statistics */
536 rx_bad_ip_csum += ((m->ol_flags & PKT_RX_IP_CKSUM_BAD) != 0);
537 rx_bad_l4_csum += ((m->ol_flags & PKT_RX_L4_CKSUM_BAD) != 0);
539 /* step 1: dissect packet, parsing optional vlan, ip4/ip6, vxlan
540 * and inner headers */
542 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
543 ether_addr_copy(&peer_eth_addrs[fs->peer_addr],
545 ether_addr_copy(&ports[fs->tx_port].eth_addr,
547 parse_ethernet(eth_hdr, &info);
548 l3_hdr = (char *)eth_hdr + info.l2_len;
550 /* check if it's a supported tunnel */
551 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_PARSE_TUNNEL) {
552 if (info.l4_proto == IPPROTO_UDP) {
553 struct udp_hdr *udp_hdr;
554 udp_hdr = (struct udp_hdr *)((char *)l3_hdr +
556 parse_vxlan(udp_hdr, &info, m->packet_type);
557 } else if (info.l4_proto == IPPROTO_GRE) {
558 struct simple_gre_hdr *gre_hdr;
559 gre_hdr = (struct simple_gre_hdr *)
560 ((char *)l3_hdr + info.l3_len);
561 parse_gre(gre_hdr, &info);
562 } else if (info.l4_proto == IPPROTO_IPIP) {
564 encap_ip_hdr = (char *)l3_hdr + info.l3_len;
565 parse_encap_ip(encap_ip_hdr, &info);
569 /* update l3_hdr and outer_l3_hdr if a tunnel was parsed */
570 if (info.is_tunnel) {
571 outer_l3_hdr = l3_hdr;
572 l3_hdr = (char *)l3_hdr + info.outer_l3_len + info.l2_len;
575 /* step 2: change all source IPs (v4 or v6) so we need
576 * to recompute the chksums even if they were correct */
578 change_ip_addresses(l3_hdr, info.ethertype);
579 if (info.is_tunnel == 1)
580 change_ip_addresses(outer_l3_hdr, info.outer_ethertype);
582 /* step 3: depending on user command line configuration,
583 * recompute checksum either in software or flag the
584 * mbuf to offload the calculation to the NIC. If TSO
585 * is configured, prepare the mbuf for TCP segmentation. */
587 /* process checksums of inner headers first */
588 ol_flags |= process_inner_cksums(l3_hdr, &info, testpmd_ol_flags);
590 /* Then process outer headers if any. Note that the software
591 * checksum will be wrong if one of the inner checksums is
592 * processed in hardware. */
593 if (info.is_tunnel == 1) {
594 ol_flags |= process_outer_cksums(outer_l3_hdr, &info,
598 /* step 4: fill the mbuf meta data (flags and header lengths) */
600 if (info.is_tunnel == 1) {
601 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM) {
602 m->outer_l2_len = info.outer_l2_len;
603 m->outer_l3_len = info.outer_l3_len;
604 m->l2_len = info.l2_len;
605 m->l3_len = info.l3_len;
606 m->l4_len = info.l4_len;
609 /* if there is a outer UDP cksum
610 processed in sw and the inner in hw,
611 the outer checksum will be wrong as
612 the payload will be modified by the
614 m->l2_len = info.outer_l2_len +
615 info.outer_l3_len + info.l2_len;
616 m->l3_len = info.l3_len;
617 m->l4_len = info.l4_len;
620 /* this is only useful if an offload flag is
621 * set, but it does not hurt to fill it in any
623 m->l2_len = info.l2_len;
624 m->l3_len = info.l3_len;
625 m->l4_len = info.l4_len;
627 m->tso_segsz = info.tso_segsz;
628 m->ol_flags = ol_flags;
630 /* if verbose mode is enabled, dump debug info */
631 if (verbose_level > 0) {
636 { PKT_TX_IP_CKSUM, PKT_TX_IP_CKSUM },
637 { PKT_TX_UDP_CKSUM, PKT_TX_L4_MASK },
638 { PKT_TX_TCP_CKSUM, PKT_TX_L4_MASK },
639 { PKT_TX_SCTP_CKSUM, PKT_TX_L4_MASK },
640 { PKT_TX_IPV4, PKT_TX_IPV4 },
641 { PKT_TX_IPV6, PKT_TX_IPV6 },
642 { PKT_TX_OUTER_IP_CKSUM, PKT_TX_OUTER_IP_CKSUM },
643 { PKT_TX_OUTER_IPV4, PKT_TX_OUTER_IPV4 },
644 { PKT_TX_OUTER_IPV6, PKT_TX_OUTER_IPV6 },
645 { PKT_TX_TCP_SEG, PKT_TX_TCP_SEG },
650 printf("-----------------\n");
651 /* dump rx parsed packet info */
652 printf("rx: l2_len=%d ethertype=%x l3_len=%d "
653 "l4_proto=%d l4_len=%d\n",
654 info.l2_len, rte_be_to_cpu_16(info.ethertype),
655 info.l3_len, info.l4_proto, info.l4_len);
656 if (info.is_tunnel == 1)
657 printf("rx: outer_l2_len=%d outer_ethertype=%x "
658 "outer_l3_len=%d\n", info.outer_l2_len,
659 rte_be_to_cpu_16(info.outer_ethertype),
661 /* dump tx packet info */
662 if ((testpmd_ol_flags & (TESTPMD_TX_OFFLOAD_IP_CKSUM |
663 TESTPMD_TX_OFFLOAD_UDP_CKSUM |
664 TESTPMD_TX_OFFLOAD_TCP_CKSUM |
665 TESTPMD_TX_OFFLOAD_SCTP_CKSUM)) ||
667 printf("tx: m->l2_len=%d m->l3_len=%d "
669 m->l2_len, m->l3_len, m->l4_len);
670 if ((info.is_tunnel == 1) &&
671 (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM))
672 printf("tx: m->outer_l2_len=%d m->outer_l3_len=%d\n",
673 m->outer_l2_len, m->outer_l3_len);
674 if (info.tso_segsz != 0)
675 printf("tx: m->tso_segsz=%d\n", m->tso_segsz);
676 printf("tx: flags=");
677 for (j = 0; j < sizeof(tx_flags)/sizeof(*tx_flags); j++) {
678 name = rte_get_tx_ol_flag_name(tx_flags[j].flag);
679 if ((m->ol_flags & tx_flags[j].mask) ==
686 nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
687 fs->tx_packets += nb_tx;
688 fs->rx_bad_ip_csum += rx_bad_ip_csum;
689 fs->rx_bad_l4_csum += rx_bad_l4_csum;
691 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
692 fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
694 if (unlikely(nb_tx < nb_rx)) {
695 fs->fwd_dropped += (nb_rx - nb_tx);
697 rte_pktmbuf_free(pkts_burst[nb_tx]);
698 } while (++nb_tx < nb_rx);
700 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
701 end_tsc = rte_rdtsc();
702 core_cycles = (end_tsc - start_tsc);
703 fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
707 struct fwd_engine csum_fwd_engine = {
708 .fwd_mode_name = "csum",
709 .port_fwd_begin = NULL,
710 .port_fwd_end = NULL,
711 .packet_fwd = pkt_burst_checksum_forward,