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
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28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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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 */
206 parse_vxlan(struct udp_hdr *udp_hdr,
207 struct testpmd_offload_info *info,
210 parse_vxlan(struct udp_hdr *udp_hdr, struct testpmd_offload_info *info,
211 uint64_t mbuf_olflags)
214 struct ether_hdr *eth_hdr;
216 /* check udp destination port, 4789 is the default vxlan port
217 * (rfc7348) or that the rx offload flag is set (i40e only
219 if (udp_hdr->dst_port != _htons(4789) &&
221 RTE_ETH_IS_TUNNEL_PKT(pkt_type) == 0)
223 (mbuf_olflags & (PKT_RX_TUNNEL_IPV4_HDR |
224 PKT_RX_TUNNEL_IPV6_HDR)) == 0)
229 info->outer_ethertype = info->ethertype;
230 info->outer_l2_len = info->l2_len;
231 info->outer_l3_len = info->l3_len;
232 info->outer_l4_proto = info->l4_proto;
234 eth_hdr = (struct ether_hdr *)((char *)udp_hdr +
235 sizeof(struct udp_hdr) +
236 sizeof(struct vxlan_hdr));
238 parse_ethernet(eth_hdr, info);
239 info->l2_len += ETHER_VXLAN_HLEN; /* add udp + vxlan */
242 /* Parse a gre header */
244 parse_gre(struct simple_gre_hdr *gre_hdr, struct testpmd_offload_info *info)
246 struct ether_hdr *eth_hdr;
247 struct ipv4_hdr *ipv4_hdr;
248 struct ipv6_hdr *ipv6_hdr;
251 /* check which fields are supported */
252 if ((gre_hdr->flags & _htons(~GRE_SUPPORTED_FIELDS)) != 0)
255 gre_len += sizeof(struct simple_gre_hdr);
257 if (gre_hdr->flags & _htons(GRE_KEY_PRESENT))
258 gre_len += GRE_KEY_LEN;
260 if (gre_hdr->proto == _htons(ETHER_TYPE_IPv4)) {
262 info->outer_ethertype = info->ethertype;
263 info->outer_l2_len = info->l2_len;
264 info->outer_l3_len = info->l3_len;
265 info->outer_l4_proto = info->l4_proto;
267 ipv4_hdr = (struct ipv4_hdr *)((char *)gre_hdr + gre_len);
269 parse_ipv4(ipv4_hdr, info);
270 info->ethertype = _htons(ETHER_TYPE_IPv4);
273 } else if (gre_hdr->proto == _htons(ETHER_TYPE_IPv6)) {
275 info->outer_ethertype = info->ethertype;
276 info->outer_l2_len = info->l2_len;
277 info->outer_l3_len = info->l3_len;
278 info->outer_l4_proto = info->l4_proto;
280 ipv6_hdr = (struct ipv6_hdr *)((char *)gre_hdr + gre_len);
282 info->ethertype = _htons(ETHER_TYPE_IPv6);
283 parse_ipv6(ipv6_hdr, info);
286 } else if (gre_hdr->proto == _htons(ETHER_TYPE_TEB)) {
288 info->outer_ethertype = info->ethertype;
289 info->outer_l2_len = info->l2_len;
290 info->outer_l3_len = info->l3_len;
291 info->outer_l4_proto = info->l4_proto;
293 eth_hdr = (struct ether_hdr *)((char *)gre_hdr + gre_len);
295 parse_ethernet(eth_hdr, info);
299 info->l2_len += gre_len;
303 /* Parse an encapsulated ip or ipv6 header */
305 parse_encap_ip(void *encap_ip, struct testpmd_offload_info *info)
307 struct ipv4_hdr *ipv4_hdr = encap_ip;
308 struct ipv6_hdr *ipv6_hdr = encap_ip;
311 ip_version = (ipv4_hdr->version_ihl & 0xf0) >> 4;
313 if (ip_version != 4 && ip_version != 6)
317 info->outer_ethertype = info->ethertype;
318 info->outer_l2_len = info->l2_len;
319 info->outer_l3_len = info->l3_len;
321 if (ip_version == 4) {
322 parse_ipv4(ipv4_hdr, info);
323 info->ethertype = _htons(ETHER_TYPE_IPv4);
325 parse_ipv6(ipv6_hdr, info);
326 info->ethertype = _htons(ETHER_TYPE_IPv6);
331 /* modify the IPv4 or IPv4 source address of a packet */
333 change_ip_addresses(void *l3_hdr, uint16_t ethertype)
335 struct ipv4_hdr *ipv4_hdr = l3_hdr;
336 struct ipv6_hdr *ipv6_hdr = l3_hdr;
338 if (ethertype == _htons(ETHER_TYPE_IPv4)) {
340 rte_cpu_to_be_32(rte_be_to_cpu_32(ipv4_hdr->src_addr) + 1);
341 } else if (ethertype == _htons(ETHER_TYPE_IPv6)) {
342 ipv6_hdr->src_addr[15] = ipv6_hdr->src_addr[15] + 1;
346 /* if possible, calculate the checksum of a packet in hw or sw,
347 * depending on the testpmd command line configuration */
349 process_inner_cksums(void *l3_hdr, const struct testpmd_offload_info *info,
350 uint16_t testpmd_ol_flags)
352 struct ipv4_hdr *ipv4_hdr = l3_hdr;
353 struct udp_hdr *udp_hdr;
354 struct tcp_hdr *tcp_hdr;
355 struct sctp_hdr *sctp_hdr;
356 uint64_t ol_flags = 0;
358 if (info->ethertype == _htons(ETHER_TYPE_IPv4)) {
360 ipv4_hdr->hdr_checksum = 0;
362 ol_flags |= PKT_TX_IPV4;
363 if (info->tso_segsz != 0 && info->l4_proto == IPPROTO_TCP) {
364 ol_flags |= PKT_TX_IP_CKSUM;
366 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_IP_CKSUM)
367 ol_flags |= PKT_TX_IP_CKSUM;
369 ipv4_hdr->hdr_checksum =
370 rte_ipv4_cksum(ipv4_hdr);
372 } else if (info->ethertype == _htons(ETHER_TYPE_IPv6))
373 ol_flags |= PKT_TX_IPV6;
375 return 0; /* packet type not supported, nothing to do */
377 if (info->l4_proto == IPPROTO_UDP) {
378 udp_hdr = (struct udp_hdr *)((char *)l3_hdr + info->l3_len);
379 /* do not recalculate udp cksum if it was 0 */
380 if (udp_hdr->dgram_cksum != 0) {
381 udp_hdr->dgram_cksum = 0;
382 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_UDP_CKSUM) {
383 ol_flags |= PKT_TX_UDP_CKSUM;
384 udp_hdr->dgram_cksum = get_psd_sum(l3_hdr,
385 info->ethertype, ol_flags);
387 udp_hdr->dgram_cksum =
388 get_udptcp_checksum(l3_hdr, udp_hdr,
392 } else if (info->l4_proto == IPPROTO_TCP) {
393 tcp_hdr = (struct tcp_hdr *)((char *)l3_hdr + info->l3_len);
395 if (info->tso_segsz != 0) {
396 ol_flags |= PKT_TX_TCP_SEG;
397 tcp_hdr->cksum = get_psd_sum(l3_hdr, info->ethertype,
399 } else if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_TCP_CKSUM) {
400 ol_flags |= PKT_TX_TCP_CKSUM;
401 tcp_hdr->cksum = get_psd_sum(l3_hdr, info->ethertype,
405 get_udptcp_checksum(l3_hdr, tcp_hdr,
408 } else if (info->l4_proto == IPPROTO_SCTP) {
409 sctp_hdr = (struct sctp_hdr *)((char *)l3_hdr + info->l3_len);
411 /* sctp payload must be a multiple of 4 to be
413 if ((testpmd_ol_flags & TESTPMD_TX_OFFLOAD_SCTP_CKSUM) &&
414 ((ipv4_hdr->total_length & 0x3) == 0)) {
415 ol_flags |= PKT_TX_SCTP_CKSUM;
417 /* XXX implement CRC32c, example available in
425 /* Calculate the checksum of outer header (only vxlan is supported,
426 * meaning IP + UDP). The caller already checked that it's a vxlan
429 process_outer_cksums(void *outer_l3_hdr, struct testpmd_offload_info *info,
430 uint16_t testpmd_ol_flags)
432 struct ipv4_hdr *ipv4_hdr = outer_l3_hdr;
433 struct ipv6_hdr *ipv6_hdr = outer_l3_hdr;
434 struct udp_hdr *udp_hdr;
435 uint64_t ol_flags = 0;
437 if (info->outer_ethertype == _htons(ETHER_TYPE_IPv4)) {
438 ipv4_hdr->hdr_checksum = 0;
439 ol_flags |= PKT_TX_OUTER_IPV4;
441 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM)
442 ol_flags |= PKT_TX_OUTER_IP_CKSUM;
444 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
445 } else if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM)
446 ol_flags |= PKT_TX_OUTER_IPV6;
448 if (info->outer_l4_proto != IPPROTO_UDP)
451 /* outer UDP checksum is always done in software as we have no
452 * hardware supporting it today, and no API for it. */
454 udp_hdr = (struct udp_hdr *)((char *)outer_l3_hdr + info->outer_l3_len);
455 /* do not recalculate udp cksum if it was 0 */
456 if (udp_hdr->dgram_cksum != 0) {
457 udp_hdr->dgram_cksum = 0;
458 if (info->outer_ethertype == _htons(ETHER_TYPE_IPv4))
459 udp_hdr->dgram_cksum =
460 rte_ipv4_udptcp_cksum(ipv4_hdr, udp_hdr);
462 udp_hdr->dgram_cksum =
463 rte_ipv6_udptcp_cksum(ipv6_hdr, udp_hdr);
470 * Receive a burst of packets, and for each packet:
471 * - parse packet, and try to recognize a supported packet type (1)
472 * - if it's not a supported packet type, don't touch the packet, else:
473 * - modify the IPs in inner headers and in outer headers if any
474 * - reprocess the checksum of all supported layers. This is done in SW
475 * or HW, depending on testpmd command line configuration
476 * - if TSO is enabled in testpmd command line, also flag the mbuf for TCP
477 * segmentation offload (this implies HW TCP checksum)
478 * Then transmit packets on the output port.
480 * (1) Supported packets are:
481 * Ether / (vlan) / IP|IP6 / UDP|TCP|SCTP .
482 * Ether / (vlan) / outer IP|IP6 / outer UDP / VxLAN / Ether / IP|IP6 /
484 * Ether / (vlan) / outer IP|IP6 / GRE / Ether / IP|IP6 / UDP|TCP|SCTP
485 * Ether / (vlan) / outer IP|IP6 / GRE / IP|IP6 / UDP|TCP|SCTP
486 * Ether / (vlan) / outer IP|IP6 / IP|IP6 / UDP|TCP|SCTP
488 * The testpmd command line for this forward engine sets the flags
489 * TESTPMD_TX_OFFLOAD_* in ports[tx_port].tx_ol_flags. They control
490 * wether a checksum must be calculated in software or in hardware. The
491 * IP, UDP, TCP and SCTP flags always concern the inner layer. The
492 * OUTER_IP is only useful for tunnel packets.
495 pkt_burst_checksum_forward(struct fwd_stream *fs)
497 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
498 struct rte_port *txp;
500 struct ether_hdr *eth_hdr;
501 void *l3_hdr = NULL, *outer_l3_hdr = NULL; /* can be IPv4 or IPv6 */
506 uint16_t testpmd_ol_flags;
507 uint32_t rx_bad_ip_csum;
508 uint32_t rx_bad_l4_csum;
509 struct testpmd_offload_info info;
511 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
514 uint64_t core_cycles;
517 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
518 start_tsc = rte_rdtsc();
521 /* receive a burst of packet */
522 nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
524 if (unlikely(nb_rx == 0))
527 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
528 fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
530 fs->rx_packets += nb_rx;
534 txp = &ports[fs->tx_port];
535 testpmd_ol_flags = txp->tx_ol_flags;
536 memset(&info, 0, sizeof(info));
537 info.tso_segsz = txp->tso_segsz;
539 for (i = 0; i < nb_rx; i++) {
545 /* Update the L3/L4 checksum error packet statistics */
546 rx_bad_ip_csum += ((m->ol_flags & PKT_RX_IP_CKSUM_BAD) != 0);
547 rx_bad_l4_csum += ((m->ol_flags & PKT_RX_L4_CKSUM_BAD) != 0);
549 /* step 1: dissect packet, parsing optional vlan, ip4/ip6, vxlan
550 * and inner headers */
552 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
553 parse_ethernet(eth_hdr, &info);
554 l3_hdr = (char *)eth_hdr + info.l2_len;
556 /* check if it's a supported tunnel */
557 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_PARSE_TUNNEL) {
558 if (info.l4_proto == IPPROTO_UDP) {
559 struct udp_hdr *udp_hdr;
560 udp_hdr = (struct udp_hdr *)((char *)l3_hdr +
563 parse_vxlan(udp_hdr, &info, m->packet_type);
565 parse_vxlan(udp_hdr, &info, m->ol_flags);
567 } else if (info.l4_proto == IPPROTO_GRE) {
568 struct simple_gre_hdr *gre_hdr;
569 gre_hdr = (struct simple_gre_hdr *)
570 ((char *)l3_hdr + info.l3_len);
571 parse_gre(gre_hdr, &info);
572 } else if (info.l4_proto == IPPROTO_IPIP) {
574 encap_ip_hdr = (char *)l3_hdr + info.l3_len;
575 parse_encap_ip(encap_ip_hdr, &info);
579 /* update l3_hdr and outer_l3_hdr if a tunnel was parsed */
580 if (info.is_tunnel) {
581 outer_l3_hdr = l3_hdr;
582 l3_hdr = (char *)l3_hdr + info.outer_l3_len + info.l2_len;
585 /* step 2: change all source IPs (v4 or v6) so we need
586 * to recompute the chksums even if they were correct */
588 change_ip_addresses(l3_hdr, info.ethertype);
589 if (info.is_tunnel == 1)
590 change_ip_addresses(outer_l3_hdr, info.outer_ethertype);
592 /* step 3: depending on user command line configuration,
593 * recompute checksum either in software or flag the
594 * mbuf to offload the calculation to the NIC. If TSO
595 * is configured, prepare the mbuf for TCP segmentation. */
597 /* process checksums of inner headers first */
598 ol_flags |= process_inner_cksums(l3_hdr, &info, testpmd_ol_flags);
600 /* Then process outer headers if any. Note that the software
601 * checksum will be wrong if one of the inner checksums is
602 * processed in hardware. */
603 if (info.is_tunnel == 1) {
604 ol_flags |= process_outer_cksums(outer_l3_hdr, &info,
608 /* step 4: fill the mbuf meta data (flags and header lengths) */
610 if (info.is_tunnel == 1) {
611 if (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM) {
612 m->outer_l2_len = info.outer_l2_len;
613 m->outer_l3_len = info.outer_l3_len;
614 m->l2_len = info.l2_len;
615 m->l3_len = info.l3_len;
616 m->l4_len = info.l4_len;
619 /* if there is a outer UDP cksum
620 processed in sw and the inner in hw,
621 the outer checksum will be wrong as
622 the payload will be modified by the
624 m->l2_len = info.outer_l2_len +
625 info.outer_l3_len + info.l2_len;
626 m->l3_len = info.l3_len;
627 m->l4_len = info.l4_len;
630 /* this is only useful if an offload flag is
631 * set, but it does not hurt to fill it in any
633 m->l2_len = info.l2_len;
634 m->l3_len = info.l3_len;
635 m->l4_len = info.l4_len;
637 m->tso_segsz = info.tso_segsz;
638 m->ol_flags = ol_flags;
640 /* if verbose mode is enabled, dump debug info */
641 if (verbose_level > 0) {
646 { PKT_TX_IP_CKSUM, PKT_TX_IP_CKSUM },
647 { PKT_TX_UDP_CKSUM, PKT_TX_L4_MASK },
648 { PKT_TX_TCP_CKSUM, PKT_TX_L4_MASK },
649 { PKT_TX_SCTP_CKSUM, PKT_TX_L4_MASK },
650 { PKT_TX_IPV4, PKT_TX_IPV4 },
651 { PKT_TX_IPV6, PKT_TX_IPV6 },
652 { PKT_TX_OUTER_IP_CKSUM, PKT_TX_OUTER_IP_CKSUM },
653 { PKT_TX_OUTER_IPV4, PKT_TX_OUTER_IPV4 },
654 { PKT_TX_OUTER_IPV6, PKT_TX_OUTER_IPV6 },
655 { PKT_TX_TCP_SEG, PKT_TX_TCP_SEG },
660 printf("-----------------\n");
661 /* dump rx parsed packet info */
662 printf("rx: l2_len=%d ethertype=%x l3_len=%d "
663 "l4_proto=%d l4_len=%d\n",
664 info.l2_len, rte_be_to_cpu_16(info.ethertype),
665 info.l3_len, info.l4_proto, info.l4_len);
666 if (info.is_tunnel == 1)
667 printf("rx: outer_l2_len=%d outer_ethertype=%x "
668 "outer_l3_len=%d\n", info.outer_l2_len,
669 rte_be_to_cpu_16(info.outer_ethertype),
671 /* dump tx packet info */
672 if ((testpmd_ol_flags & (TESTPMD_TX_OFFLOAD_IP_CKSUM |
673 TESTPMD_TX_OFFLOAD_UDP_CKSUM |
674 TESTPMD_TX_OFFLOAD_TCP_CKSUM |
675 TESTPMD_TX_OFFLOAD_SCTP_CKSUM)) ||
677 printf("tx: m->l2_len=%d m->l3_len=%d "
679 m->l2_len, m->l3_len, m->l4_len);
680 if ((info.is_tunnel == 1) &&
681 (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_OUTER_IP_CKSUM))
682 printf("tx: m->outer_l2_len=%d m->outer_l3_len=%d\n",
683 m->outer_l2_len, m->outer_l3_len);
684 if (info.tso_segsz != 0)
685 printf("tx: m->tso_segsz=%d\n", m->tso_segsz);
686 printf("tx: flags=");
687 for (j = 0; j < sizeof(tx_flags)/sizeof(*tx_flags); j++) {
688 name = rte_get_tx_ol_flag_name(tx_flags[j].flag);
689 if ((m->ol_flags & tx_flags[j].mask) ==
696 nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
697 fs->tx_packets += nb_tx;
698 fs->rx_bad_ip_csum += rx_bad_ip_csum;
699 fs->rx_bad_l4_csum += rx_bad_l4_csum;
701 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
702 fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
704 if (unlikely(nb_tx < nb_rx)) {
705 fs->fwd_dropped += (nb_rx - nb_tx);
707 rte_pktmbuf_free(pkts_burst[nb_tx]);
708 } while (++nb_tx < nb_rx);
710 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
711 end_tsc = rte_rdtsc();
712 core_cycles = (end_tsc - start_tsc);
713 fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
717 struct fwd_engine csum_fwd_engine = {
718 .fwd_mode_name = "csum",
719 .port_fwd_begin = NULL,
720 .port_fwd_end = NULL,
721 .packet_fwd = pkt_burst_checksum_forward,