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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 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];
108 * Include header file if SSE4_1 is enabled for
109 * buffer optimization i.e. ENABLE_MULTI_BUFFER_OPTIMIZE=1.
111 #if defined(__SSE4_1__)
112 #include "l3fwd_lpm_sse.h"
114 #include "l3fwd_lpm.h"
117 /* main processing loop */
119 lpm_main_loop(__attribute__((unused)) void *dummy)
121 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
123 uint64_t prev_tsc, diff_tsc, cur_tsc;
125 uint8_t portid, queueid;
126 struct lcore_conf *qconf;
127 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
128 US_PER_S * BURST_TX_DRAIN_US;
132 lcore_id = rte_lcore_id();
133 qconf = &lcore_conf[lcore_id];
135 if (qconf->n_rx_queue == 0) {
136 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
140 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
142 for (i = 0; i < qconf->n_rx_queue; i++) {
144 portid = qconf->rx_queue_list[i].port_id;
145 queueid = qconf->rx_queue_list[i].queue_id;
147 " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n",
148 lcore_id, portid, queueid);
151 while (!force_quit) {
153 cur_tsc = rte_rdtsc();
156 * TX burst queue drain
158 diff_tsc = cur_tsc - prev_tsc;
159 if (unlikely(diff_tsc > drain_tsc)) {
161 for (i = 0; i < qconf->n_rx_queue; i++) {
162 portid = qconf->rx_queue_list[i].port_id;
163 if (qconf->tx_mbufs[portid].len == 0)
166 qconf->tx_mbufs[portid].len,
168 qconf->tx_mbufs[portid].len = 0;
175 * Read packet from RX queues
177 for (i = 0; i < qconf->n_rx_queue; ++i) {
178 portid = qconf->rx_queue_list[i].port_id;
179 queueid = qconf->rx_queue_list[i].queue_id;
180 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
186 * For SSE4_1 use ENABLE_MULTI_BUFFER_OPTIMIZE=1
189 #if defined(__SSE4_1__)
190 l3fwd_lpm_send_packets(nb_rx, pkts_burst,
193 l3fwd_lpm_no_opt_send_packets(nb_rx, pkts_burst,
195 #endif /* __SSE_4_1__ */
203 setup_lpm(const int socketid)
205 struct rte_lpm6_config config;
210 /* create the LPM table */
211 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
212 ipv4_l3fwd_lpm_lookup_struct[socketid] = rte_lpm_create(s, socketid,
213 IPV4_L3FWD_LPM_MAX_RULES, 0);
214 if (ipv4_l3fwd_lpm_lookup_struct[socketid] == NULL)
215 rte_exit(EXIT_FAILURE,
216 "Unable to create the l3fwd LPM table on socket %d\n",
219 /* populate the LPM table */
220 for (i = 0; i < IPV4_L3FWD_LPM_NUM_ROUTES; i++) {
222 /* skip unused ports */
223 if ((1 << ipv4_l3fwd_lpm_route_array[i].if_out &
224 enabled_port_mask) == 0)
227 ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid],
228 ipv4_l3fwd_lpm_route_array[i].ip,
229 ipv4_l3fwd_lpm_route_array[i].depth,
230 ipv4_l3fwd_lpm_route_array[i].if_out);
233 rte_exit(EXIT_FAILURE,
234 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
238 printf("LPM: Adding route 0x%08x / %d (%d)\n",
239 (unsigned)ipv4_l3fwd_lpm_route_array[i].ip,
240 ipv4_l3fwd_lpm_route_array[i].depth,
241 ipv4_l3fwd_lpm_route_array[i].if_out);
244 /* create the LPM6 table */
245 snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid);
247 config.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
248 config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
250 ipv6_l3fwd_lpm_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
252 if (ipv6_l3fwd_lpm_lookup_struct[socketid] == NULL)
253 rte_exit(EXIT_FAILURE,
254 "Unable to create the l3fwd LPM table on socket %d\n",
257 /* populate the LPM table */
258 for (i = 0; i < IPV6_L3FWD_LPM_NUM_ROUTES; i++) {
260 /* skip unused ports */
261 if ((1 << ipv6_l3fwd_lpm_route_array[i].if_out &
262 enabled_port_mask) == 0)
265 ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid],
266 ipv6_l3fwd_lpm_route_array[i].ip,
267 ipv6_l3fwd_lpm_route_array[i].depth,
268 ipv6_l3fwd_lpm_route_array[i].if_out);
271 rte_exit(EXIT_FAILURE,
272 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
276 printf("LPM: Adding route %s / %d (%d)\n",
278 ipv6_l3fwd_lpm_route_array[i].depth,
279 ipv6_l3fwd_lpm_route_array[i].if_out);
283 /* Return ipv4/ipv6 lpm fwd lookup struct. */
285 lpm_get_ipv4_l3fwd_lookup_struct(const int socketid)
287 return ipv4_l3fwd_lpm_lookup_struct[socketid];
291 lpm_get_ipv6_l3fwd_lookup_struct(const int socketid)
293 return ipv6_l3fwd_lpm_lookup_struct[socketid];