--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <netinet/in.h>
+
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_cycles.h>
+#include <rte_mbuf.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+#include <rte_hash.h>
+
+#include "l3fwd.h"
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#include <rte_hash_crc.h>
+#define DEFAULT_HASH_FUNC rte_hash_crc
+#else
+#include <rte_jhash.h>
+#define DEFAULT_HASH_FUNC rte_jhash
+#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+
+#define IPV6_ADDR_LEN 16
+
+struct ipv4_5tuple {
+ uint32_t ip_dst;
+ uint32_t ip_src;
+ uint16_t port_dst;
+ uint16_t port_src;
+ uint8_t proto;
+} __attribute__((__packed__));
+
+union ipv4_5tuple_host {
+ struct {
+ uint8_t pad0;
+ uint8_t proto;
+ uint16_t pad1;
+ uint32_t ip_src;
+ uint32_t ip_dst;
+ uint16_t port_src;
+ uint16_t port_dst;
+ };
+ xmm_t xmm;
+};
+
+#define XMM_NUM_IN_IPV6_5TUPLE 3
+
+struct ipv6_5tuple {
+ uint8_t ip_dst[IPV6_ADDR_LEN];
+ uint8_t ip_src[IPV6_ADDR_LEN];
+ uint16_t port_dst;
+ uint16_t port_src;
+ uint8_t proto;
+} __attribute__((__packed__));
+
+union ipv6_5tuple_host {
+ struct {
+ uint16_t pad0;
+ uint8_t proto;
+ uint8_t pad1;
+ uint8_t ip_src[IPV6_ADDR_LEN];
+ uint8_t ip_dst[IPV6_ADDR_LEN];
+ uint16_t port_src;
+ uint16_t port_dst;
+ uint64_t reserve;
+ };
+ xmm_t xmm[XMM_NUM_IN_IPV6_5TUPLE];
+};
+
+
+
+struct ipv4_l3fwd_em_route {
+ struct ipv4_5tuple key;
+ uint8_t if_out;
+};
+
+struct ipv6_l3fwd_em_route {
+ struct ipv6_5tuple key;
+ uint8_t if_out;
+};
+
+static struct ipv4_l3fwd_em_route ipv4_l3fwd_em_route_array[] = {
+ {{IPv4(101, 0, 0, 0), IPv4(100, 10, 0, 1), 101, 11, IPPROTO_TCP}, 0},
+ {{IPv4(201, 0, 0, 0), IPv4(200, 20, 0, 1), 102, 12, IPPROTO_TCP}, 1},
+ {{IPv4(111, 0, 0, 0), IPv4(100, 30, 0, 1), 101, 11, IPPROTO_TCP}, 2},
+ {{IPv4(211, 0, 0, 0), IPv4(200, 40, 0, 1), 102, 12, IPPROTO_TCP}, 3},
+};
+
+static struct ipv6_l3fwd_em_route ipv6_l3fwd_em_route_array[] = {
+ {{
+ {0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
+ {0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ 101, 11, IPPROTO_TCP}, 0},
+
+ {{
+ {0xfe, 0x90, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
+ {0xfe, 0x90, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ 102, 12, IPPROTO_TCP}, 1},
+
+ {{
+ {0xfe, 0xa0, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
+ {0xfe, 0xa0, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ 101, 11, IPPROTO_TCP}, 2},
+
+ {{
+ {0xfe, 0xb0, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
+ {0xfe, 0xb0, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ 102, 12, IPPROTO_TCP}, 3},
+};
+
+struct rte_hash *ipv4_l3fwd_em_lookup_struct[NB_SOCKETS];
+struct rte_hash *ipv6_l3fwd_em_lookup_struct[NB_SOCKETS];
+
+static inline uint32_t
+ipv4_hash_crc(const void *data, __rte_unused uint32_t data_len,
+ uint32_t init_val)
+{
+ const union ipv4_5tuple_host *k;
+ uint32_t t;
+ const uint32_t *p;
+
+ k = data;
+ t = k->proto;
+ p = (const uint32_t *)&k->port_src;
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+ init_val = rte_hash_crc_4byte(t, init_val);
+ init_val = rte_hash_crc_4byte(k->ip_src, init_val);
+ init_val = rte_hash_crc_4byte(k->ip_dst, init_val);
+ init_val = rte_hash_crc_4byte(*p, init_val);
+#else /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+ init_val = rte_jhash_1word(t, init_val);
+ init_val = rte_jhash_1word(k->ip_src, init_val);
+ init_val = rte_jhash_1word(k->ip_dst, init_val);
+ init_val = rte_jhash_1word(*p, init_val);
+#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+
+ return init_val;
+}
+
+static inline uint32_t
+ipv6_hash_crc(const void *data, __rte_unused uint32_t data_len,
+ uint32_t init_val)
+{
+ const union ipv6_5tuple_host *k;
+ uint32_t t;
+ const uint32_t *p;
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+ const uint32_t *ip_src0, *ip_src1, *ip_src2, *ip_src3;
+ const uint32_t *ip_dst0, *ip_dst1, *ip_dst2, *ip_dst3;
+#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+
+ k = data;
+ t = k->proto;
+ p = (const uint32_t *)&k->port_src;
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+ ip_src0 = (const uint32_t *) k->ip_src;
+ ip_src1 = (const uint32_t *)(k->ip_src+4);
+ ip_src2 = (const uint32_t *)(k->ip_src+8);
+ ip_src3 = (const uint32_t *)(k->ip_src+12);
+ ip_dst0 = (const uint32_t *) k->ip_dst;
+ ip_dst1 = (const uint32_t *)(k->ip_dst+4);
+ ip_dst2 = (const uint32_t *)(k->ip_dst+8);
+ ip_dst3 = (const uint32_t *)(k->ip_dst+12);
+ init_val = rte_hash_crc_4byte(t, init_val);
+ init_val = rte_hash_crc_4byte(*ip_src0, init_val);
+ init_val = rte_hash_crc_4byte(*ip_src1, init_val);
+ init_val = rte_hash_crc_4byte(*ip_src2, init_val);
+ init_val = rte_hash_crc_4byte(*ip_src3, init_val);
+ init_val = rte_hash_crc_4byte(*ip_dst0, init_val);
+ init_val = rte_hash_crc_4byte(*ip_dst1, init_val);
+ init_val = rte_hash_crc_4byte(*ip_dst2, init_val);
+ init_val = rte_hash_crc_4byte(*ip_dst3, init_val);
+ init_val = rte_hash_crc_4byte(*p, init_val);
+#else /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+ init_val = rte_jhash_1word(t, init_val);
+ init_val = rte_jhash(k->ip_src,
+ sizeof(uint8_t) * IPV6_ADDR_LEN, init_val);
+ init_val = rte_jhash(k->ip_dst,
+ sizeof(uint8_t) * IPV6_ADDR_LEN, init_val);
+ init_val = rte_jhash_1word(*p, init_val);
+#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+ return init_val;
+}
+
+#define IPV4_L3FWD_EM_NUM_ROUTES \
+ (sizeof(ipv4_l3fwd_em_route_array) / sizeof(ipv4_l3fwd_em_route_array[0]))
+
+#define IPV6_L3FWD_EM_NUM_ROUTES \
+ (sizeof(ipv6_l3fwd_em_route_array) / sizeof(ipv6_l3fwd_em_route_array[0]))
+
+static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
+static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
+
+static rte_xmm_t mask0;
+static rte_xmm_t mask1;
+static rte_xmm_t mask2;
+
+#if defined(__SSE2__)
+static inline xmm_t
+em_mask_key(void *key, xmm_t mask)
+{
+ __m128i data = _mm_loadu_si128((__m128i *)(key));
+
+ return _mm_and_si128(data, mask);
+}
+#elif defined(RTE_MACHINE_CPUFLAG_NEON)
+static inline xmm_t
+em_mask_key(void *key, xmm_t mask)
+{
+ int32x4_t data = vld1q_s32((int32_t *)key);
+
+ return vandq_s32(data, mask);
+}
+#endif
+
+static inline uint8_t
+em_get_ipv4_dst_port(void *ipv4_hdr, uint8_t portid, void *lookup_struct)
+{
+ int ret = 0;
+ union ipv4_5tuple_host key;
+ struct rte_hash *ipv4_l3fwd_lookup_struct =
+ (struct rte_hash *)lookup_struct;
+
+ ipv4_hdr = (uint8_t *)ipv4_hdr + offsetof(struct ipv4_hdr, time_to_live);
+
+ /*
+ * Get 5 tuple: dst port, src port, dst IP address,
+ * src IP address and protocol.
+ */
+ key.xmm = em_mask_key(ipv4_hdr, mask0.x);
+
+ /* Find destination port */
+ ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
+ return (uint8_t)((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
+}
+
+static inline uint8_t
+em_get_ipv6_dst_port(void *ipv6_hdr, uint8_t portid, void *lookup_struct)
+{
+ int ret = 0;
+ union ipv6_5tuple_host key;
+ struct rte_hash *ipv6_l3fwd_lookup_struct =
+ (struct rte_hash *)lookup_struct;
+
+ ipv6_hdr = (uint8_t *)ipv6_hdr + offsetof(struct ipv6_hdr, payload_len);
+ void *data0 = ipv6_hdr;
+ void *data1 = ((uint8_t *)ipv6_hdr) + sizeof(xmm_t);
+ void *data2 = ((uint8_t *)ipv6_hdr) + sizeof(xmm_t) + sizeof(xmm_t);
+
+ /* Get part of 5 tuple: src IP address lower 96 bits and protocol */
+ key.xmm[0] = em_mask_key(data0, mask1.x);
+
+ /*
+ * Get part of 5 tuple: dst IP address lower 96 bits
+ * and src IP address higher 32 bits.
+ */
+ key.xmm[1] = *(xmm_t *)data1;
+
+ /*
+ * Get part of 5 tuple: dst port and src port
+ * and dst IP address higher 32 bits.
+ */
+ key.xmm[2] = em_mask_key(data2, mask2.x);
+
+ /* Find destination port */
+ ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
+ return (uint8_t)((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
+}
+
+#if defined(__SSE4_1__)
+#if defined(NO_HASH_MULTI_LOOKUP)
+#include "l3fwd_em_sse.h"
+#else
+#include "l3fwd_em_hlm_sse.h"
+#endif
+#else
+#include "l3fwd_em.h"
+#endif
+
+static void
+convert_ipv4_5tuple(struct ipv4_5tuple *key1,
+ union ipv4_5tuple_host *key2)
+{
+ key2->ip_dst = rte_cpu_to_be_32(key1->ip_dst);
+ key2->ip_src = rte_cpu_to_be_32(key1->ip_src);
+ key2->port_dst = rte_cpu_to_be_16(key1->port_dst);
+ key2->port_src = rte_cpu_to_be_16(key1->port_src);
+ key2->proto = key1->proto;
+ key2->pad0 = 0;
+ key2->pad1 = 0;
+}
+
+static void
+convert_ipv6_5tuple(struct ipv6_5tuple *key1,
+ union ipv6_5tuple_host *key2)
+{
+ uint32_t i;
+
+ for (i = 0; i < 16; i++) {
+ key2->ip_dst[i] = key1->ip_dst[i];
+ key2->ip_src[i] = key1->ip_src[i];
+ }
+ key2->port_dst = rte_cpu_to_be_16(key1->port_dst);
+ key2->port_src = rte_cpu_to_be_16(key1->port_src);
+ key2->proto = key1->proto;
+ key2->pad0 = 0;
+ key2->pad1 = 0;
+ key2->reserve = 0;
+}
+
+#define BYTE_VALUE_MAX 256
+#define ALL_32_BITS 0xffffffff
+#define BIT_8_TO_15 0x0000ff00
+
+static inline void
+populate_ipv4_few_flow_into_table(const struct rte_hash *h)
+{
+ uint32_t i;
+ int32_t ret;
+
+ mask0 = (rte_xmm_t){.u32 = {BIT_8_TO_15, ALL_32_BITS,
+ ALL_32_BITS, ALL_32_BITS} };
+
+ for (i = 0; i < IPV4_L3FWD_EM_NUM_ROUTES; i++) {
+ struct ipv4_l3fwd_em_route entry;
+ union ipv4_5tuple_host newkey;
+
+ entry = ipv4_l3fwd_em_route_array[i];
+ convert_ipv4_5tuple(&entry.key, &newkey);
+ ret = rte_hash_add_key(h, (void *) &newkey);
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %" PRIu32
+ " to the l3fwd hash.\n", i);
+ }
+ ipv4_l3fwd_out_if[ret] = entry.if_out;
+ }
+ printf("Hash: Adding 0x%" PRIx64 " keys\n",
+ (uint64_t)IPV4_L3FWD_EM_NUM_ROUTES);
+}
+
+#define BIT_16_TO_23 0x00ff0000
+static inline void
+populate_ipv6_few_flow_into_table(const struct rte_hash *h)
+{
+ uint32_t i;
+ int32_t ret;
+
+ mask1 = (rte_xmm_t){.u32 = {BIT_16_TO_23, ALL_32_BITS,
+ ALL_32_BITS, ALL_32_BITS} };
+
+ mask2 = (rte_xmm_t){.u32 = {ALL_32_BITS, ALL_32_BITS, 0, 0} };
+
+ for (i = 0; i < IPV6_L3FWD_EM_NUM_ROUTES; i++) {
+ struct ipv6_l3fwd_em_route entry;
+ union ipv6_5tuple_host newkey;
+
+ entry = ipv6_l3fwd_em_route_array[i];
+ convert_ipv6_5tuple(&entry.key, &newkey);
+ ret = rte_hash_add_key(h, (void *) &newkey);
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %" PRIu32
+ " to the l3fwd hash.\n", i);
+ }
+ ipv6_l3fwd_out_if[ret] = entry.if_out;
+ }
+ printf("Hash: Adding 0x%" PRIx64 "keys\n",
+ (uint64_t)IPV6_L3FWD_EM_NUM_ROUTES);
+}
+
+#define NUMBER_PORT_USED 4
+static inline void
+populate_ipv4_many_flow_into_table(const struct rte_hash *h,
+ unsigned int nr_flow)
+{
+ unsigned i;
+
+ mask0 = (rte_xmm_t){.u32 = {BIT_8_TO_15, ALL_32_BITS,
+ ALL_32_BITS, ALL_32_BITS} };
+
+ for (i = 0; i < nr_flow; i++) {
+ struct ipv4_l3fwd_em_route entry;
+ union ipv4_5tuple_host newkey;
+
+ uint8_t a = (uint8_t)
+ ((i/NUMBER_PORT_USED)%BYTE_VALUE_MAX);
+ uint8_t b = (uint8_t)
+ (((i/NUMBER_PORT_USED)/BYTE_VALUE_MAX)%BYTE_VALUE_MAX);
+ uint8_t c = (uint8_t)
+ ((i/NUMBER_PORT_USED)/(BYTE_VALUE_MAX*BYTE_VALUE_MAX));
+
+ /* Create the ipv4 exact match flow */
+ memset(&entry, 0, sizeof(entry));
+ switch (i & (NUMBER_PORT_USED - 1)) {
+ case 0:
+ entry = ipv4_l3fwd_em_route_array[0];
+ entry.key.ip_dst = IPv4(101, c, b, a);
+ break;
+ case 1:
+ entry = ipv4_l3fwd_em_route_array[1];
+ entry.key.ip_dst = IPv4(201, c, b, a);
+ break;
+ case 2:
+ entry = ipv4_l3fwd_em_route_array[2];
+ entry.key.ip_dst = IPv4(111, c, b, a);
+ break;
+ case 3:
+ entry = ipv4_l3fwd_em_route_array[3];
+ entry.key.ip_dst = IPv4(211, c, b, a);
+ break;
+ };
+ convert_ipv4_5tuple(&entry.key, &newkey);
+ int32_t ret = rte_hash_add_key(h, (void *) &newkey);
+
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u\n", i);
+
+ ipv4_l3fwd_out_if[ret] = (uint8_t) entry.if_out;
+
+ }
+ printf("Hash: Adding 0x%x keys\n", nr_flow);
+}
+
+static inline void
+populate_ipv6_many_flow_into_table(const struct rte_hash *h,
+ unsigned int nr_flow)
+{
+ unsigned i;
+
+ mask1 = (rte_xmm_t){.u32 = {BIT_16_TO_23, ALL_32_BITS,
+ ALL_32_BITS, ALL_32_BITS} };
+ mask2 = (rte_xmm_t){.u32 = {ALL_32_BITS, ALL_32_BITS, 0, 0} };
+
+ for (i = 0; i < nr_flow; i++) {
+ struct ipv6_l3fwd_em_route entry;
+ union ipv6_5tuple_host newkey;
+
+ uint8_t a = (uint8_t)
+ ((i/NUMBER_PORT_USED)%BYTE_VALUE_MAX);
+ uint8_t b = (uint8_t)
+ (((i/NUMBER_PORT_USED)/BYTE_VALUE_MAX)%BYTE_VALUE_MAX);
+ uint8_t c = (uint8_t)
+ ((i/NUMBER_PORT_USED)/(BYTE_VALUE_MAX*BYTE_VALUE_MAX));
+
+ /* Create the ipv6 exact match flow */
+ memset(&entry, 0, sizeof(entry));
+ switch (i & (NUMBER_PORT_USED - 1)) {
+ case 0:
+ entry = ipv6_l3fwd_em_route_array[0];
+ break;
+ case 1:
+ entry = ipv6_l3fwd_em_route_array[1];
+ break;
+ case 2:
+ entry = ipv6_l3fwd_em_route_array[2];
+ break;
+ case 3:
+ entry = ipv6_l3fwd_em_route_array[3];
+ break;
+ };
+ entry.key.ip_dst[13] = c;
+ entry.key.ip_dst[14] = b;
+ entry.key.ip_dst[15] = a;
+ convert_ipv6_5tuple(&entry.key, &newkey);
+ int32_t ret = rte_hash_add_key(h, (void *) &newkey);
+
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u\n", i);
+
+ ipv6_l3fwd_out_if[ret] = (uint8_t) entry.if_out;
+
+ }
+ printf("Hash: Adding 0x%x keys\n", nr_flow);
+}
+
+/* Requirements:
+ * 1. IP packets without extension;
+ * 2. L4 payload should be either TCP or UDP.
+ */
+int
+em_check_ptype(int portid)
+{
+ int i, ret;
+ int ptype_l3_ipv4_ext = 0;
+ int ptype_l3_ipv6_ext = 0;
+ int ptype_l4_tcp = 0;
+ int ptype_l4_udp = 0;
+ uint32_t ptype_mask = RTE_PTYPE_L3_MASK | RTE_PTYPE_L4_MASK;
+
+ ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
+ if (ret <= 0)
+ return 0;
+
+ uint32_t ptypes[ret];
+
+ ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
+ for (i = 0; i < ret; ++i) {
+ switch (ptypes[i]) {
+ case RTE_PTYPE_L3_IPV4_EXT:
+ ptype_l3_ipv4_ext = 1;
+ break;
+ case RTE_PTYPE_L3_IPV6_EXT:
+ ptype_l3_ipv6_ext = 1;
+ break;
+ case RTE_PTYPE_L4_TCP:
+ ptype_l4_tcp = 1;
+ break;
+ case RTE_PTYPE_L4_UDP:
+ ptype_l4_udp = 1;
+ break;
+ }
+ }
+
+ if (ptype_l3_ipv4_ext == 0)
+ printf("port %d cannot parse RTE_PTYPE_L3_IPV4_EXT\n", portid);
+ if (ptype_l3_ipv6_ext == 0)
+ printf("port %d cannot parse RTE_PTYPE_L3_IPV6_EXT\n", portid);
+ if (!ptype_l3_ipv4_ext || !ptype_l3_ipv6_ext)
+ return 0;
+
+ if (ptype_l4_tcp == 0)
+ printf("port %d cannot parse RTE_PTYPE_L4_TCP\n", portid);
+ if (ptype_l4_udp == 0)
+ printf("port %d cannot parse RTE_PTYPE_L4_UDP\n", portid);
+ if (ptype_l4_tcp && ptype_l4_udp)
+ return 1;
+
+ return 0;
+}
+
+static inline void
+em_parse_ptype(struct rte_mbuf *m)
+{
+ struct ether_hdr *eth_hdr;
+ uint32_t packet_type = RTE_PTYPE_UNKNOWN;
+ uint16_t ether_type;
+ void *l3;
+ int hdr_len;
+ struct ipv4_hdr *ipv4_hdr;
+ struct ipv6_hdr *ipv6_hdr;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+ ether_type = eth_hdr->ether_type;
+ l3 = (uint8_t *)eth_hdr + sizeof(struct ether_hdr);
+ if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4)) {
+ ipv4_hdr = (struct ipv4_hdr *)l3;
+ hdr_len = (ipv4_hdr->version_ihl & IPV4_HDR_IHL_MASK) *
+ IPV4_IHL_MULTIPLIER;
+ if (hdr_len == sizeof(struct ipv4_hdr)) {
+ packet_type |= RTE_PTYPE_L3_IPV4;
+ if (ipv4_hdr->next_proto_id == IPPROTO_TCP)
+ packet_type |= RTE_PTYPE_L4_TCP;
+ else if (ipv4_hdr->next_proto_id == IPPROTO_UDP)
+ packet_type |= RTE_PTYPE_L4_UDP;
+ } else
+ packet_type |= RTE_PTYPE_L3_IPV4_EXT;
+ } else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4)) {
+ ipv6_hdr = (struct ipv6_hdr *)l3;
+ if (ipv6_hdr->proto == IPPROTO_TCP)
+ packet_type |= RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP;
+ else if (ipv6_hdr->proto == IPPROTO_UDP)
+ packet_type |= RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP;
+ else
+ packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+ }
+
+ m->packet_type = packet_type;
+}
+
+uint16_t
+em_cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused,
+ struct rte_mbuf *pkts[], uint16_t nb_pkts,
+ uint16_t max_pkts __rte_unused,
+ void *user_param __rte_unused)
+{
+ unsigned i;
+
+ for (i = 0; i < nb_pkts; ++i)
+ em_parse_ptype(pkts[i]);
+
+ return nb_pkts;
+}
+
+/* main processing loop */
+int
+em_main_loop(__attribute__((unused)) void *dummy)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ unsigned lcore_id;
+ uint64_t prev_tsc, diff_tsc, cur_tsc;
+ int i, nb_rx;
+ uint8_t portid, queueid;
+ struct lcore_conf *qconf;
+ const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
+ US_PER_S * BURST_TX_DRAIN_US;
+
+ prev_tsc = 0;
+
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_conf[lcore_id];
+
+ if (qconf->n_rx_queue == 0) {
+ RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
+ return 0;
+ }
+
+ RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
+
+ for (i = 0; i < qconf->n_rx_queue; i++) {
+
+ portid = qconf->rx_queue_list[i].port_id;
+ queueid = qconf->rx_queue_list[i].queue_id;
+ RTE_LOG(INFO, L3FWD,
+ " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n",
+ lcore_id, portid, queueid);
+ }
+
+ while (!force_quit) {
+
+ cur_tsc = rte_rdtsc();
+
+ /*
+ * TX burst queue drain
+ */
+ diff_tsc = cur_tsc - prev_tsc;
+ if (unlikely(diff_tsc > drain_tsc)) {
+
+ for (i = 0; i < qconf->n_tx_port; ++i) {
+ portid = qconf->tx_port_id[i];
+ if (qconf->tx_mbufs[portid].len == 0)
+ continue;
+ send_burst(qconf,
+ qconf->tx_mbufs[portid].len,
+ portid);
+ qconf->tx_mbufs[portid].len = 0;
+ }
+
+ prev_tsc = cur_tsc;
+ }
+
+ /*
+ * Read packet from RX queues
+ */
+ for (i = 0; i < qconf->n_rx_queue; ++i) {
+ portid = qconf->rx_queue_list[i].port_id;
+ queueid = qconf->rx_queue_list[i].queue_id;
+ nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
+ MAX_PKT_BURST);
+ if (nb_rx == 0)
+ continue;
+
+#if defined(__SSE4_1__)
+ l3fwd_em_send_packets(nb_rx, pkts_burst,
+ portid, qconf);
+#else
+ l3fwd_em_no_opt_send_packets(nb_rx, pkts_burst,
+ portid, qconf);
+#endif /* __SSE_4_1__ */
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Initialize exact match (hash) parameters.
+ */
+void
+setup_hash(const int socketid)
+{
+ struct rte_hash_parameters ipv4_l3fwd_hash_params = {
+ .name = NULL,
+ .entries = L3FWD_HASH_ENTRIES,
+ .key_len = sizeof(union ipv4_5tuple_host),
+ .hash_func = ipv4_hash_crc,
+ .hash_func_init_val = 0,
+ };
+
+ struct rte_hash_parameters ipv6_l3fwd_hash_params = {
+ .name = NULL,
+ .entries = L3FWD_HASH_ENTRIES,
+ .key_len = sizeof(union ipv6_5tuple_host),
+ .hash_func = ipv6_hash_crc,
+ .hash_func_init_val = 0,
+ };
+
+ char s[64];
+
+ /* create ipv4 hash */
+ snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
+ ipv4_l3fwd_hash_params.name = s;
+ ipv4_l3fwd_hash_params.socket_id = socketid;
+ ipv4_l3fwd_em_lookup_struct[socketid] =
+ rte_hash_create(&ipv4_l3fwd_hash_params);
+ if (ipv4_l3fwd_em_lookup_struct[socketid] == NULL)
+ rte_exit(EXIT_FAILURE,
+ "Unable to create the l3fwd hash on socket %d\n",
+ socketid);
+
+ /* create ipv6 hash */
+ snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
+ ipv6_l3fwd_hash_params.name = s;
+ ipv6_l3fwd_hash_params.socket_id = socketid;
+ ipv6_l3fwd_em_lookup_struct[socketid] =
+ rte_hash_create(&ipv6_l3fwd_hash_params);
+ if (ipv6_l3fwd_em_lookup_struct[socketid] == NULL)
+ rte_exit(EXIT_FAILURE,
+ "Unable to create the l3fwd hash on socket %d\n",
+ socketid);
+
+ if (hash_entry_number != HASH_ENTRY_NUMBER_DEFAULT) {
+ /* For testing hash matching with a large number of flows we
+ * generate millions of IP 5-tuples with an incremented dst
+ * address to initialize the hash table. */
+ if (ipv6 == 0) {
+ /* populate the ipv4 hash */
+ populate_ipv4_many_flow_into_table(
+ ipv4_l3fwd_em_lookup_struct[socketid],
+ hash_entry_number);
+ } else {
+ /* populate the ipv6 hash */
+ populate_ipv6_many_flow_into_table(
+ ipv6_l3fwd_em_lookup_struct[socketid],
+ hash_entry_number);
+ }
+ } else {
+ /*
+ * Use data in ipv4/ipv6 l3fwd lookup table
+ * directly to initialize the hash table.
+ */
+ if (ipv6 == 0) {
+ /* populate the ipv4 hash */
+ populate_ipv4_few_flow_into_table(
+ ipv4_l3fwd_em_lookup_struct[socketid]);
+ } else {
+ /* populate the ipv6 hash */
+ populate_ipv6_few_flow_into_table(
+ ipv6_l3fwd_em_lookup_struct[socketid]);
+ }
+ }
+}
+
+/* Return ipv4/ipv6 em fwd lookup struct. */
+void *
+em_get_ipv4_l3fwd_lookup_struct(const int socketid)
+{
+ return ipv4_l3fwd_em_lookup_struct[socketid];
+}
+
+void *
+em_get_ipv6_l3fwd_lookup_struct(const int socketid)
+{
+ return ipv6_l3fwd_em_lookup_struct[socketid];
+}
Code Review / deb_dpdk.git / blobdiff