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38 #include <sys/types.h>
40 #include <sys/queue.h>
46 #include <rte_debug.h>
47 #include <rte_ether.h>
48 #include <rte_ethdev.h>
49 #include <rte_mempool.h>
50 #include <rte_cycles.h>
60 struct ipv4_l3fwd_lpm_route {
66 struct ipv6_l3fwd_lpm_route {
72 static struct ipv4_l3fwd_lpm_route ipv4_l3fwd_lpm_route_array[] = {
73 {IPv4(1, 1, 1, 0), 24, 0},
74 {IPv4(2, 1, 1, 0), 24, 1},
75 {IPv4(3, 1, 1, 0), 24, 2},
76 {IPv4(4, 1, 1, 0), 24, 3},
77 {IPv4(5, 1, 1, 0), 24, 4},
78 {IPv4(6, 1, 1, 0), 24, 5},
79 {IPv4(7, 1, 1, 0), 24, 6},
80 {IPv4(8, 1, 1, 0), 24, 7},
83 static struct ipv6_l3fwd_lpm_route ipv6_l3fwd_lpm_route_array[] = {
84 {{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 0},
85 {{2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 1},
86 {{3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 2},
87 {{4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 3},
88 {{5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 4},
89 {{6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 5},
90 {{7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 6},
91 {{8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 7},
94 #define IPV4_L3FWD_LPM_NUM_ROUTES \
95 (sizeof(ipv4_l3fwd_lpm_route_array) / sizeof(ipv4_l3fwd_lpm_route_array[0]))
96 #define IPV6_L3FWD_LPM_NUM_ROUTES \
97 (sizeof(ipv6_l3fwd_lpm_route_array) / sizeof(ipv6_l3fwd_lpm_route_array[0]))
99 #define IPV4_L3FWD_LPM_MAX_RULES 1024
100 #define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
101 #define IPV6_L3FWD_LPM_MAX_RULES 1024
102 #define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
104 struct rte_lpm *ipv4_l3fwd_lpm_lookup_struct[NB_SOCKETS];
105 struct rte_lpm6 *ipv6_l3fwd_lpm_lookup_struct[NB_SOCKETS];
107 #if defined(__SSE4_1__)
108 #include "l3fwd_lpm_sse.h"
110 #include "l3fwd_lpm.h"
113 /* main processing loop */
115 lpm_main_loop(__attribute__((unused)) void *dummy)
117 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
119 uint64_t prev_tsc, diff_tsc, cur_tsc;
121 uint8_t portid, queueid;
122 struct lcore_conf *qconf;
123 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
124 US_PER_S * BURST_TX_DRAIN_US;
128 lcore_id = rte_lcore_id();
129 qconf = &lcore_conf[lcore_id];
131 if (qconf->n_rx_queue == 0) {
132 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
136 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
138 for (i = 0; i < qconf->n_rx_queue; i++) {
140 portid = qconf->rx_queue_list[i].port_id;
141 queueid = qconf->rx_queue_list[i].queue_id;
143 " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n",
144 lcore_id, portid, queueid);
147 while (!force_quit) {
149 cur_tsc = rte_rdtsc();
152 * TX burst queue drain
154 diff_tsc = cur_tsc - prev_tsc;
155 if (unlikely(diff_tsc > drain_tsc)) {
157 for (i = 0; i < qconf->n_tx_port; ++i) {
158 portid = qconf->tx_port_id[i];
159 if (qconf->tx_mbufs[portid].len == 0)
162 qconf->tx_mbufs[portid].len,
164 qconf->tx_mbufs[portid].len = 0;
171 * Read packet from RX queues
173 for (i = 0; i < qconf->n_rx_queue; ++i) {
174 portid = qconf->rx_queue_list[i].port_id;
175 queueid = qconf->rx_queue_list[i].queue_id;
176 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
181 #if defined(__SSE4_1__)
182 l3fwd_lpm_send_packets(nb_rx, pkts_burst,
185 l3fwd_lpm_no_opt_send_packets(nb_rx, pkts_burst,
187 #endif /* __SSE_4_1__ */
195 setup_lpm(const int socketid)
197 struct rte_lpm6_config config;
198 struct rte_lpm_config config_ipv4;
203 /* create the LPM table */
204 config_ipv4.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
205 config_ipv4.number_tbl8s = IPV4_L3FWD_LPM_NUMBER_TBL8S;
206 config_ipv4.flags = 0;
207 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
208 ipv4_l3fwd_lpm_lookup_struct[socketid] =
209 rte_lpm_create(s, socketid, &config_ipv4);
210 if (ipv4_l3fwd_lpm_lookup_struct[socketid] == NULL)
211 rte_exit(EXIT_FAILURE,
212 "Unable to create the l3fwd LPM table on socket %d\n",
215 /* populate the LPM table */
216 for (i = 0; i < IPV4_L3FWD_LPM_NUM_ROUTES; i++) {
218 /* skip unused ports */
219 if ((1 << ipv4_l3fwd_lpm_route_array[i].if_out &
220 enabled_port_mask) == 0)
223 ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid],
224 ipv4_l3fwd_lpm_route_array[i].ip,
225 ipv4_l3fwd_lpm_route_array[i].depth,
226 ipv4_l3fwd_lpm_route_array[i].if_out);
229 rte_exit(EXIT_FAILURE,
230 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
234 printf("LPM: Adding route 0x%08x / %d (%d)\n",
235 (unsigned)ipv4_l3fwd_lpm_route_array[i].ip,
236 ipv4_l3fwd_lpm_route_array[i].depth,
237 ipv4_l3fwd_lpm_route_array[i].if_out);
240 /* create the LPM6 table */
241 snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid);
243 config.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
244 config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
246 ipv6_l3fwd_lpm_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
248 if (ipv6_l3fwd_lpm_lookup_struct[socketid] == NULL)
249 rte_exit(EXIT_FAILURE,
250 "Unable to create the l3fwd LPM table on socket %d\n",
253 /* populate the LPM table */
254 for (i = 0; i < IPV6_L3FWD_LPM_NUM_ROUTES; i++) {
256 /* skip unused ports */
257 if ((1 << ipv6_l3fwd_lpm_route_array[i].if_out &
258 enabled_port_mask) == 0)
261 ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid],
262 ipv6_l3fwd_lpm_route_array[i].ip,
263 ipv6_l3fwd_lpm_route_array[i].depth,
264 ipv6_l3fwd_lpm_route_array[i].if_out);
267 rte_exit(EXIT_FAILURE,
268 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
272 printf("LPM: Adding route %s / %d (%d)\n",
274 ipv6_l3fwd_lpm_route_array[i].depth,
275 ipv6_l3fwd_lpm_route_array[i].if_out);
280 lpm_check_ptype(int portid)
283 int ptype_l3_ipv4 = 0, ptype_l3_ipv6 = 0;
284 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
286 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
290 uint32_t ptypes[ret];
292 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
293 for (i = 0; i < ret; ++i) {
294 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
296 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
300 if (ptype_l3_ipv4 == 0)
301 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
303 if (ptype_l3_ipv6 == 0)
304 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
306 if (ptype_l3_ipv4 && ptype_l3_ipv6)
314 lpm_parse_ptype(struct rte_mbuf *m)
316 struct ether_hdr *eth_hdr;
317 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
320 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
321 ether_type = eth_hdr->ether_type;
322 if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
323 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
324 else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
325 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
327 m->packet_type = packet_type;
331 lpm_cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused,
332 struct rte_mbuf *pkts[], uint16_t nb_pkts,
333 uint16_t max_pkts __rte_unused,
334 void *user_param __rte_unused)
338 for (i = 0; i < nb_pkts; ++i)
339 lpm_parse_ptype(pkts[i]);
344 /* Return ipv4/ipv6 lpm fwd lookup struct. */
346 lpm_get_ipv4_l3fwd_lookup_struct(const int socketid)
348 return ipv4_l3fwd_lpm_lookup_struct[socketid];
352 lpm_get_ipv6_l3fwd_lookup_struct(const int socketid)
354 return ipv6_l3fwd_lpm_lookup_struct[socketid];