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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_cycles.h>
59 struct ipv4_l3fwd_lpm_route {
65 struct ipv6_l3fwd_lpm_route {
71 static struct ipv4_l3fwd_lpm_route ipv4_l3fwd_lpm_route_array[] = {
72 {IPv4(1, 1, 1, 0), 24, 0},
73 {IPv4(2, 1, 1, 0), 24, 1},
74 {IPv4(3, 1, 1, 0), 24, 2},
75 {IPv4(4, 1, 1, 0), 24, 3},
76 {IPv4(5, 1, 1, 0), 24, 4},
77 {IPv4(6, 1, 1, 0), 24, 5},
78 {IPv4(7, 1, 1, 0), 24, 6},
79 {IPv4(8, 1, 1, 0), 24, 7},
82 static struct ipv6_l3fwd_lpm_route ipv6_l3fwd_lpm_route_array[] = {
83 {{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 0},
84 {{2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 1},
85 {{3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 2},
86 {{4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 3},
87 {{5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 4},
88 {{6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 5},
89 {{7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 6},
90 {{8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 7},
93 #define IPV4_L3FWD_LPM_NUM_ROUTES \
94 (sizeof(ipv4_l3fwd_lpm_route_array) / sizeof(ipv4_l3fwd_lpm_route_array[0]))
95 #define IPV6_L3FWD_LPM_NUM_ROUTES \
96 (sizeof(ipv6_l3fwd_lpm_route_array) / sizeof(ipv6_l3fwd_lpm_route_array[0]))
98 #define IPV4_L3FWD_LPM_MAX_RULES 1024
99 #define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
100 #define IPV6_L3FWD_LPM_MAX_RULES 1024
101 #define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
103 struct rte_lpm *ipv4_l3fwd_lpm_lookup_struct[NB_SOCKETS];
104 struct rte_lpm6 *ipv6_l3fwd_lpm_lookup_struct[NB_SOCKETS];
106 #if defined(__SSE4_1__)
107 #include "l3fwd_lpm_sse.h"
109 #include "l3fwd_lpm.h"
112 /* main processing loop */
114 lpm_main_loop(__attribute__((unused)) void *dummy)
116 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
118 uint64_t prev_tsc, diff_tsc, cur_tsc;
120 uint8_t portid, queueid;
121 struct lcore_conf *qconf;
122 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
123 US_PER_S * BURST_TX_DRAIN_US;
127 lcore_id = rte_lcore_id();
128 qconf = &lcore_conf[lcore_id];
130 if (qconf->n_rx_queue == 0) {
131 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
135 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
137 for (i = 0; i < qconf->n_rx_queue; i++) {
139 portid = qconf->rx_queue_list[i].port_id;
140 queueid = qconf->rx_queue_list[i].queue_id;
142 " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n",
143 lcore_id, portid, queueid);
146 while (!force_quit) {
148 cur_tsc = rte_rdtsc();
151 * TX burst queue drain
153 diff_tsc = cur_tsc - prev_tsc;
154 if (unlikely(diff_tsc > drain_tsc)) {
156 for (i = 0; i < qconf->n_tx_port; ++i) {
157 portid = qconf->tx_port_id[i];
158 if (qconf->tx_mbufs[portid].len == 0)
161 qconf->tx_mbufs[portid].len,
163 qconf->tx_mbufs[portid].len = 0;
170 * Read packet from RX queues
172 for (i = 0; i < qconf->n_rx_queue; ++i) {
173 portid = qconf->rx_queue_list[i].port_id;
174 queueid = qconf->rx_queue_list[i].queue_id;
175 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
180 #if defined(__SSE4_1__)
181 l3fwd_lpm_send_packets(nb_rx, pkts_burst,
184 l3fwd_lpm_no_opt_send_packets(nb_rx, pkts_burst,
186 #endif /* __SSE_4_1__ */
194 setup_lpm(const int socketid)
196 struct rte_lpm6_config config;
197 struct rte_lpm_config config_ipv4;
202 /* create the LPM table */
203 config_ipv4.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
204 config_ipv4.number_tbl8s = IPV4_L3FWD_LPM_NUMBER_TBL8S;
205 config_ipv4.flags = 0;
206 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
207 ipv4_l3fwd_lpm_lookup_struct[socketid] =
208 rte_lpm_create(s, socketid, &config_ipv4);
209 if (ipv4_l3fwd_lpm_lookup_struct[socketid] == NULL)
210 rte_exit(EXIT_FAILURE,
211 "Unable to create the l3fwd LPM table on socket %d\n",
214 /* populate the LPM table */
215 for (i = 0; i < IPV4_L3FWD_LPM_NUM_ROUTES; i++) {
217 /* skip unused ports */
218 if ((1 << ipv4_l3fwd_lpm_route_array[i].if_out &
219 enabled_port_mask) == 0)
222 ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid],
223 ipv4_l3fwd_lpm_route_array[i].ip,
224 ipv4_l3fwd_lpm_route_array[i].depth,
225 ipv4_l3fwd_lpm_route_array[i].if_out);
228 rte_exit(EXIT_FAILURE,
229 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
233 printf("LPM: Adding route 0x%08x / %d (%d)\n",
234 (unsigned)ipv4_l3fwd_lpm_route_array[i].ip,
235 ipv4_l3fwd_lpm_route_array[i].depth,
236 ipv4_l3fwd_lpm_route_array[i].if_out);
239 /* create the LPM6 table */
240 snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid);
242 config.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
243 config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
245 ipv6_l3fwd_lpm_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
247 if (ipv6_l3fwd_lpm_lookup_struct[socketid] == NULL)
248 rte_exit(EXIT_FAILURE,
249 "Unable to create the l3fwd LPM table on socket %d\n",
252 /* populate the LPM table */
253 for (i = 0; i < IPV6_L3FWD_LPM_NUM_ROUTES; i++) {
255 /* skip unused ports */
256 if ((1 << ipv6_l3fwd_lpm_route_array[i].if_out &
257 enabled_port_mask) == 0)
260 ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid],
261 ipv6_l3fwd_lpm_route_array[i].ip,
262 ipv6_l3fwd_lpm_route_array[i].depth,
263 ipv6_l3fwd_lpm_route_array[i].if_out);
266 rte_exit(EXIT_FAILURE,
267 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
271 printf("LPM: Adding route %s / %d (%d)\n",
273 ipv6_l3fwd_lpm_route_array[i].depth,
274 ipv6_l3fwd_lpm_route_array[i].if_out);
279 lpm_check_ptype(int portid)
282 int ptype_l3_ipv4 = 0, ptype_l3_ipv6 = 0;
283 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
285 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
289 uint32_t ptypes[ret];
291 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
292 for (i = 0; i < ret; ++i) {
293 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
295 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
299 if (ptype_l3_ipv4 == 0)
300 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
302 if (ptype_l3_ipv6 == 0)
303 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
305 if (ptype_l3_ipv4 && ptype_l3_ipv6)
313 lpm_parse_ptype(struct rte_mbuf *m)
315 struct ether_hdr *eth_hdr;
316 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
319 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
320 ether_type = eth_hdr->ether_type;
321 if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
322 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
323 else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
324 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
326 m->packet_type = packet_type;
330 lpm_cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused,
331 struct rte_mbuf *pkts[], uint16_t nb_pkts,
332 uint16_t max_pkts __rte_unused,
333 void *user_param __rte_unused)
337 for (i = 0; i < nb_pkts; ++i)
338 lpm_parse_ptype(pkts[i]);
343 /* Return ipv4/ipv6 lpm fwd lookup struct. */
345 lpm_get_ipv4_l3fwd_lookup_struct(const int socketid)
347 return ipv4_l3fwd_lpm_lookup_struct[socketid];
351 lpm_get_ipv6_l3fwd_lookup_struct(const int socketid)
353 return ipv6_l3fwd_lpm_lookup_struct[socketid];