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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>
50 #include <rte_mempool.h>
51 #include <rte_cycles.h>
61 struct ipv4_l3fwd_lpm_route {
67 struct ipv6_l3fwd_lpm_route {
73 static struct ipv4_l3fwd_lpm_route ipv4_l3fwd_lpm_route_array[] = {
74 {IPv4(1, 1, 1, 0), 24, 0},
75 {IPv4(2, 1, 1, 0), 24, 1},
76 {IPv4(3, 1, 1, 0), 24, 2},
77 {IPv4(4, 1, 1, 0), 24, 3},
78 {IPv4(5, 1, 1, 0), 24, 4},
79 {IPv4(6, 1, 1, 0), 24, 5},
80 {IPv4(7, 1, 1, 0), 24, 6},
81 {IPv4(8, 1, 1, 0), 24, 7},
84 static struct ipv6_l3fwd_lpm_route ipv6_l3fwd_lpm_route_array[] = {
85 {{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 0},
86 {{2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 1},
87 {{3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 2},
88 {{4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 3},
89 {{5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 4},
90 {{6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 5},
91 {{7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 6},
92 {{8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 7},
95 #define IPV4_L3FWD_LPM_NUM_ROUTES \
96 (sizeof(ipv4_l3fwd_lpm_route_array) / sizeof(ipv4_l3fwd_lpm_route_array[0]))
97 #define IPV6_L3FWD_LPM_NUM_ROUTES \
98 (sizeof(ipv6_l3fwd_lpm_route_array) / sizeof(ipv6_l3fwd_lpm_route_array[0]))
100 #define IPV4_L3FWD_LPM_MAX_RULES 1024
101 #define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
102 #define IPV6_L3FWD_LPM_MAX_RULES 1024
103 #define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
105 struct rte_lpm *ipv4_l3fwd_lpm_lookup_struct[NB_SOCKETS];
106 struct rte_lpm6 *ipv6_l3fwd_lpm_lookup_struct[NB_SOCKETS];
108 #if defined(__SSE4_1__)
109 #include "l3fwd_lpm_sse.h"
111 #include "l3fwd_lpm.h"
114 /* main processing loop */
116 lpm_main_loop(__attribute__((unused)) void *dummy)
118 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
120 uint64_t prev_tsc, diff_tsc, cur_tsc;
122 uint8_t portid, queueid;
123 struct lcore_conf *qconf;
124 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
125 US_PER_S * BURST_TX_DRAIN_US;
129 lcore_id = rte_lcore_id();
130 qconf = &lcore_conf[lcore_id];
132 if (qconf->n_rx_queue == 0) {
133 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
137 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
139 for (i = 0; i < qconf->n_rx_queue; i++) {
141 portid = qconf->rx_queue_list[i].port_id;
142 queueid = qconf->rx_queue_list[i].queue_id;
144 " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n",
145 lcore_id, portid, queueid);
148 while (!force_quit) {
150 cur_tsc = rte_rdtsc();
153 * TX burst queue drain
155 diff_tsc = cur_tsc - prev_tsc;
156 if (unlikely(diff_tsc > drain_tsc)) {
158 for (i = 0; i < qconf->n_tx_port; ++i) {
159 portid = qconf->tx_port_id[i];
160 if (qconf->tx_mbufs[portid].len == 0)
163 qconf->tx_mbufs[portid].len,
165 qconf->tx_mbufs[portid].len = 0;
172 * Read packet from RX queues
174 for (i = 0; i < qconf->n_rx_queue; ++i) {
175 portid = qconf->rx_queue_list[i].port_id;
176 queueid = qconf->rx_queue_list[i].queue_id;
177 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
182 #if defined(__SSE4_1__)
183 l3fwd_lpm_send_packets(nb_rx, pkts_burst,
186 l3fwd_lpm_no_opt_send_packets(nb_rx, pkts_burst,
188 #endif /* __SSE_4_1__ */
196 setup_lpm(const int socketid)
198 struct rte_lpm6_config config;
199 struct rte_lpm_config config_ipv4;
204 /* create the LPM table */
205 config_ipv4.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
206 config_ipv4.number_tbl8s = IPV4_L3FWD_LPM_NUMBER_TBL8S;
207 config_ipv4.flags = 0;
208 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
209 ipv4_l3fwd_lpm_lookup_struct[socketid] =
210 rte_lpm_create(s, socketid, &config_ipv4);
211 if (ipv4_l3fwd_lpm_lookup_struct[socketid] == NULL)
212 rte_exit(EXIT_FAILURE,
213 "Unable to create the l3fwd LPM table on socket %d\n",
216 /* populate the LPM table */
217 for (i = 0; i < IPV4_L3FWD_LPM_NUM_ROUTES; i++) {
219 /* skip unused ports */
220 if ((1 << ipv4_l3fwd_lpm_route_array[i].if_out &
221 enabled_port_mask) == 0)
224 ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid],
225 ipv4_l3fwd_lpm_route_array[i].ip,
226 ipv4_l3fwd_lpm_route_array[i].depth,
227 ipv4_l3fwd_lpm_route_array[i].if_out);
230 rte_exit(EXIT_FAILURE,
231 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
235 printf("LPM: Adding route 0x%08x / %d (%d)\n",
236 (unsigned)ipv4_l3fwd_lpm_route_array[i].ip,
237 ipv4_l3fwd_lpm_route_array[i].depth,
238 ipv4_l3fwd_lpm_route_array[i].if_out);
241 /* create the LPM6 table */
242 snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid);
244 config.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
245 config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
247 ipv6_l3fwd_lpm_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
249 if (ipv6_l3fwd_lpm_lookup_struct[socketid] == NULL)
250 rte_exit(EXIT_FAILURE,
251 "Unable to create the l3fwd LPM table on socket %d\n",
254 /* populate the LPM table */
255 for (i = 0; i < IPV6_L3FWD_LPM_NUM_ROUTES; i++) {
257 /* skip unused ports */
258 if ((1 << ipv6_l3fwd_lpm_route_array[i].if_out &
259 enabled_port_mask) == 0)
262 ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid],
263 ipv6_l3fwd_lpm_route_array[i].ip,
264 ipv6_l3fwd_lpm_route_array[i].depth,
265 ipv6_l3fwd_lpm_route_array[i].if_out);
268 rte_exit(EXIT_FAILURE,
269 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
273 printf("LPM: Adding route %s / %d (%d)\n",
275 ipv6_l3fwd_lpm_route_array[i].depth,
276 ipv6_l3fwd_lpm_route_array[i].if_out);
281 lpm_check_ptype(int portid)
284 int ptype_l3_ipv4 = 0, ptype_l3_ipv6 = 0;
285 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
287 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
291 uint32_t ptypes[ret];
293 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
294 for (i = 0; i < ret; ++i) {
295 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
297 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
301 if (ptype_l3_ipv4 == 0)
302 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
304 if (ptype_l3_ipv6 == 0)
305 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
307 if (ptype_l3_ipv4 && ptype_l3_ipv6)
315 lpm_parse_ptype(struct rte_mbuf *m)
317 struct ether_hdr *eth_hdr;
318 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
321 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
322 ether_type = eth_hdr->ether_type;
323 if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
324 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
325 else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
326 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
328 m->packet_type = packet_type;
332 lpm_cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused,
333 struct rte_mbuf *pkts[], uint16_t nb_pkts,
334 uint16_t max_pkts __rte_unused,
335 void *user_param __rte_unused)
339 for (i = 0; i < nb_pkts; ++i)
340 lpm_parse_ptype(pkts[i]);
345 /* Return ipv4/ipv6 lpm fwd lookup struct. */
347 lpm_get_ipv4_l3fwd_lookup_struct(const int socketid)
349 return ipv4_l3fwd_lpm_lookup_struct[socketid];
353 lpm_get_ipv6_l3fwd_lookup_struct(const int socketid)
355 return ipv6_l3fwd_lpm_lookup_struct[socketid];