1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation 3 */ 4 5 #include <stdint.h> 6 7 #include <rte_log.h> 8 #include <rte_mbuf.h> 9 #include <rte_malloc.h> 10 #include <rte_cycles.h> 11 #include <rte_ethdev.h> 12 #include <rte_memcpy.h> 13 #include <rte_byteorder.h> 14 #include <rte_branch_prediction.h> 15 #include <rte_sched.h> 16 17 #include "main.h" 18 19 /* 20 * QoS parameters are encoded as follows: 21 * Outer VLAN ID defines subport 22 * Inner VLAN ID defines pipe 23 * Destination IP host (0.0.0.XXX) defines queue 24 * Values below define offset to each field from start of frame 25 */ 26 #define SUBPORT_OFFSET 7 27 #define PIPE_OFFSET 9 28 #define QUEUE_OFFSET 20 29 #define COLOR_OFFSET 19 30 31 static inline int 32 get_pkt_sched(struct rte_mbuf *m, uint32_t *subport, uint32_t *pipe, 33 uint32_t *traffic_class, uint32_t *queue, uint32_t *color) 34 { 35 uint16_t *pdata = rte_pktmbuf_mtod(m, uint16_t *); 36 uint16_t pipe_queue; 37 38 /* Outer VLAN ID*/ 39 *subport = (rte_be_to_cpu_16(pdata[SUBPORT_OFFSET]) & 0x0FFF) & 40 (port_params.n_subports_per_port - 1); 41 42 /* Inner VLAN ID */ 43 *pipe = (rte_be_to_cpu_16(pdata[PIPE_OFFSET]) & 0x0FFF) & 44 (subport_params[*subport].n_pipes_per_subport_enabled - 1); 45 46 pipe_queue = active_queues[(pdata[QUEUE_OFFSET] >> 8) % n_active_queues]; 47 48 /* Traffic class (Destination IP) */ 49 *traffic_class = pipe_queue > RTE_SCHED_TRAFFIC_CLASS_BE ? 50 RTE_SCHED_TRAFFIC_CLASS_BE : pipe_queue; 51 52 /* Traffic class queue (Destination IP) */ 53 *queue = pipe_queue - *traffic_class; 54 55 /* Color (Destination IP) */ 56 *color = pdata[COLOR_OFFSET] & 0x03; 57 58 return 0; 59 } 60 61 void 62 app_rx_thread(struct thread_conf **confs) 63 { 64 uint32_t i, nb_rx; 65 struct rte_mbuf *rx_mbufs[burst_conf.rx_burst] __rte_cache_aligned; 66 struct thread_conf *conf; 67 int conf_idx = 0; 68 69 uint32_t subport; 70 uint32_t pipe; 71 uint32_t traffic_class; 72 uint32_t queue; 73 uint32_t color; 74 75 while ((conf = confs[conf_idx])) { 76 nb_rx = rte_eth_rx_burst(conf->rx_port, conf->rx_queue, rx_mbufs, 77 burst_conf.rx_burst); 78 79 if (likely(nb_rx != 0)) { 80 APP_STATS_ADD(conf->stat.nb_rx, nb_rx); 81 82 for(i = 0; i < nb_rx; i++) { 83 get_pkt_sched(rx_mbufs[i], 84 &subport, &pipe, &traffic_class, &queue, &color); 85 rte_sched_port_pkt_write(conf->sched_port, 86 rx_mbufs[i], 87 subport, pipe, 88 traffic_class, queue, 89 (enum rte_color) color); 90 } 91 92 if (unlikely(rte_ring_sp_enqueue_bulk(conf->rx_ring, 93 (void **)rx_mbufs, nb_rx, NULL) == 0)) { 94 for(i = 0; i < nb_rx; i++) { 95 rte_pktmbuf_free(rx_mbufs[i]); 96 97 APP_STATS_ADD(conf->stat.nb_drop, 1); 98 } 99 } 100 } 101 conf_idx++; 102 if (confs[conf_idx] == NULL) 103 conf_idx = 0; 104 } 105 } 106 107 void 108 app_tx_thread(struct thread_conf **confs) 109 { 110 struct rte_mbuf *mbufs[burst_conf.qos_dequeue]; 111 struct thread_conf *conf; 112 int conf_idx = 0; 113 int nb_pkts; 114 115 while ((conf = confs[conf_idx])) { 116 nb_pkts = rte_ring_sc_dequeue_burst(conf->tx_ring, (void **)mbufs, 117 burst_conf.qos_dequeue, NULL); 118 if (likely(nb_pkts != 0)) { 119 uint16_t nb_tx = rte_eth_tx_burst(conf->tx_port, 0, mbufs, nb_pkts); 120 if (nb_pkts != nb_tx) 121 rte_pktmbuf_free_bulk(&mbufs[nb_pkts], nb_pkts - nb_tx); 122 } 123 124 conf_idx++; 125 if (confs[conf_idx] == NULL) 126 conf_idx = 0; 127 } 128 } 129 130 131 void 132 app_worker_thread(struct thread_conf **confs) 133 { 134 struct rte_mbuf *mbufs[burst_conf.ring_burst]; 135 struct thread_conf *conf; 136 int conf_idx = 0; 137 138 while ((conf = confs[conf_idx])) { 139 uint32_t nb_pkt; 140 141 /* Read packet from the ring */ 142 nb_pkt = rte_ring_sc_dequeue_burst(conf->rx_ring, (void **)mbufs, 143 burst_conf.ring_burst, NULL); 144 if (likely(nb_pkt)) { 145 int nb_sent = rte_sched_port_enqueue(conf->sched_port, mbufs, 146 nb_pkt); 147 148 APP_STATS_ADD(conf->stat.nb_drop, nb_pkt - nb_sent); 149 APP_STATS_ADD(conf->stat.nb_rx, nb_pkt); 150 } 151 152 nb_pkt = rte_sched_port_dequeue(conf->sched_port, mbufs, 153 burst_conf.qos_dequeue); 154 if (likely(nb_pkt > 0)) 155 while (rte_ring_sp_enqueue_bulk(conf->tx_ring, 156 (void **)mbufs, nb_pkt, NULL) == 0) 157 ; /* empty body */ 158 159 conf_idx++; 160 if (confs[conf_idx] == NULL) 161 conf_idx = 0; 162 } 163 } 164 165 166 void 167 app_mixed_thread(struct thread_conf **confs) 168 { 169 struct rte_mbuf *mbufs[burst_conf.ring_burst]; 170 struct thread_conf *conf; 171 int conf_idx = 0; 172 173 while ((conf = confs[conf_idx])) { 174 uint32_t nb_pkt; 175 176 /* Read packet from the ring */ 177 nb_pkt = rte_ring_sc_dequeue_burst(conf->rx_ring, (void **)mbufs, 178 burst_conf.ring_burst, NULL); 179 if (likely(nb_pkt)) { 180 int nb_sent = rte_sched_port_enqueue(conf->sched_port, mbufs, 181 nb_pkt); 182 183 APP_STATS_ADD(conf->stat.nb_drop, nb_pkt - nb_sent); 184 APP_STATS_ADD(conf->stat.nb_rx, nb_pkt); 185 } 186 187 188 nb_pkt = rte_sched_port_dequeue(conf->sched_port, mbufs, 189 burst_conf.qos_dequeue); 190 if (likely(nb_pkt > 0)) { 191 uint16_t nb_tx = rte_eth_tx_burst(conf->tx_port, 0, mbufs, nb_pkt); 192 if (nb_tx != nb_pkt) 193 rte_pktmbuf_free_bulk(&mbufs[nb_tx], nb_pkt - nb_tx); 194 } 195 196 conf_idx++; 197 if (confs[conf_idx] == NULL) 198 conf_idx = 0; 199 } 200 } 201