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37 #include <rte_malloc.h>
39 #include "rte_port_ring.h"
44 struct rte_port_ring_reader {
45 struct rte_ring *ring;
49 rte_port_ring_reader_create(void *params, int socket_id)
51 struct rte_port_ring_reader_params *conf =
52 (struct rte_port_ring_reader_params *) params;
53 struct rte_port_ring_reader *port;
55 /* Check input parameters */
57 RTE_LOG(ERR, PORT, "%s: params is NULL\n", __func__);
61 /* Memory allocation */
62 port = rte_zmalloc_socket("PORT", sizeof(*port),
63 RTE_CACHE_LINE_SIZE, socket_id);
65 RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__);
70 port->ring = conf->ring;
76 rte_port_ring_reader_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts)
78 struct rte_port_ring_reader *p = (struct rte_port_ring_reader *) port;
80 return rte_ring_sc_dequeue_burst(p->ring, (void **) pkts, n_pkts);
84 rte_port_ring_reader_free(void *port)
87 RTE_LOG(ERR, PORT, "%s: port is NULL\n", __func__);
99 struct rte_port_ring_writer {
100 struct rte_mbuf *tx_buf[RTE_PORT_IN_BURST_SIZE_MAX];
101 struct rte_ring *ring;
102 uint32_t tx_burst_sz;
103 uint32_t tx_buf_count;
108 rte_port_ring_writer_create(void *params, int socket_id)
110 struct rte_port_ring_writer_params *conf =
111 (struct rte_port_ring_writer_params *) params;
112 struct rte_port_ring_writer *port;
114 /* Check input parameters */
115 if ((conf == NULL) ||
116 (conf->ring == NULL) ||
117 (conf->tx_burst_sz > RTE_PORT_IN_BURST_SIZE_MAX)) {
118 RTE_LOG(ERR, PORT, "%s: Invalid Parameters\n", __func__);
122 /* Memory allocation */
123 port = rte_zmalloc_socket("PORT", sizeof(*port),
124 RTE_CACHE_LINE_SIZE, socket_id);
126 RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__);
131 port->ring = conf->ring;
132 port->tx_burst_sz = conf->tx_burst_sz;
133 port->tx_buf_count = 0;
134 port->bsz_mask = 1LLU << (conf->tx_burst_sz - 1);
140 send_burst(struct rte_port_ring_writer *p)
144 nb_tx = rte_ring_sp_enqueue_burst(p->ring, (void **)p->tx_buf,
147 for ( ; nb_tx < p->tx_buf_count; nb_tx++)
148 rte_pktmbuf_free(p->tx_buf[nb_tx]);
154 rte_port_ring_writer_tx(void *port, struct rte_mbuf *pkt)
156 struct rte_port_ring_writer *p = (struct rte_port_ring_writer *) port;
158 p->tx_buf[p->tx_buf_count++] = pkt;
159 if (p->tx_buf_count >= p->tx_burst_sz)
166 rte_port_ring_writer_tx_bulk(void *port,
167 struct rte_mbuf **pkts,
170 struct rte_port_ring_writer *p =
171 (struct rte_port_ring_writer *) port;
173 uint32_t bsz_mask = p->bsz_mask;
174 uint32_t tx_buf_count = p->tx_buf_count;
175 uint64_t expr = (pkts_mask & (pkts_mask + 1)) |
176 ((pkts_mask & bsz_mask) ^ bsz_mask);
179 uint64_t n_pkts = __builtin_popcountll(pkts_mask);
185 n_pkts_ok = rte_ring_sp_enqueue_burst(p->ring, (void **)pkts, n_pkts);
187 for ( ; n_pkts_ok < n_pkts; n_pkts_ok++) {
188 struct rte_mbuf *pkt = pkts[n_pkts_ok];
190 rte_pktmbuf_free(pkt);
193 for ( ; pkts_mask; ) {
194 uint32_t pkt_index = __builtin_ctzll(pkts_mask);
195 uint64_t pkt_mask = 1LLU << pkt_index;
196 struct rte_mbuf *pkt = pkts[pkt_index];
198 p->tx_buf[tx_buf_count++] = pkt;
199 pkts_mask &= ~pkt_mask;
202 p->tx_buf_count = tx_buf_count;
203 if (tx_buf_count >= p->tx_burst_sz)
211 rte_port_ring_writer_flush(void *port)
213 struct rte_port_ring_writer *p = (struct rte_port_ring_writer *) port;
215 if (p->tx_buf_count > 0)
222 rte_port_ring_writer_free(void *port)
225 RTE_LOG(ERR, PORT, "%s: Port is NULL\n", __func__);
229 rte_port_ring_writer_flush(port);
236 * Summary of port operations
238 struct rte_port_in_ops rte_port_ring_reader_ops = {
239 .f_create = rte_port_ring_reader_create,
240 .f_free = rte_port_ring_reader_free,
241 .f_rx = rte_port_ring_reader_rx,
244 struct rte_port_out_ops rte_port_ring_writer_ops = {
245 .f_create = rte_port_ring_writer_create,
246 .f_free = rte_port_ring_writer_free,
247 .f_tx = rte_port_ring_writer_tx,
248 .f_tx_bulk = rte_port_ring_writer_tx_bulk,
249 .f_flush = rte_port_ring_writer_flush,