--- /dev/null
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Intel Corporation
+ */
+
+#include <string.h>
+#include <stdint.h>
+
+#include <rte_mbuf.h>
+#include <rte_malloc.h>
+
+#include "rte_port_eventdev.h"
+
+/*
+ * Port EVENTDEV Reader
+ */
+#ifdef RTE_PORT_STATS_COLLECT
+
+#define RTE_PORT_EVENTDEV_READER_STATS_PKTS_IN_ADD(port, val) \
+ do {port->stats.n_pkts_in += val;} while (0)
+#define RTE_PORT_EVENTDEV_READER_STATS_PKTS_DROP_ADD(port, val) \
+ do {port->stats.n_pkts_drop += val;} while (0)
+
+#else
+
+#define RTE_PORT_EVENTDEV_READER_STATS_PKTS_IN_ADD(port, val)
+#define RTE_PORT_EVENTDEV_READER_STATS_PKTS_DROP_ADD(port, val)
+
+#endif
+
+struct rte_port_eventdev_reader {
+ struct rte_port_in_stats stats;
+
+ uint8_t eventdev_id;
+ uint16_t port_id;
+
+ struct rte_event ev[RTE_PORT_IN_BURST_SIZE_MAX];
+};
+
+static void *
+rte_port_eventdev_reader_create(void *params, int socket_id)
+{
+ struct rte_port_eventdev_reader_params *conf =
+ params;
+ struct rte_port_eventdev_reader *port;
+
+ /* Check input parameters */
+ if (conf == NULL) {
+ RTE_LOG(ERR, PORT, "%s: params is NULL\n", __func__);
+ return NULL;
+ }
+
+ /* Memory allocation */
+ port = rte_zmalloc_socket("PORT", sizeof(*port),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (port == NULL) {
+ RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__);
+ return NULL;
+ }
+
+ /* Initialization */
+ port->eventdev_id = conf->eventdev_id;
+ port->port_id = conf->port_id;
+
+ return port;
+}
+
+static int
+rte_port_eventdev_reader_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts)
+{
+ struct rte_port_eventdev_reader *p = port;
+ uint16_t rx_evts_cnt, i;
+
+ rx_evts_cnt = rte_event_dequeue_burst(p->eventdev_id, p->port_id,
+ p->ev, n_pkts, 0);
+
+ for (i = 0; i < rx_evts_cnt; i++)
+ pkts[i] = p->ev[i].mbuf;
+
+ RTE_PORT_EVENTDEV_READER_STATS_PKTS_IN_ADD(p, rx_evts_cnt);
+
+ return rx_evts_cnt;
+}
+
+static int
+rte_port_eventdev_reader_free(void *port)
+{
+ if (port == NULL) {
+ RTE_LOG(ERR, PORT, "%s: port is NULL\n", __func__);
+ return -EINVAL;
+ }
+
+ rte_free(port);
+
+ return 0;
+}
+
+static int rte_port_eventdev_reader_stats_read(void *port,
+ struct rte_port_in_stats *stats, int clear)
+{
+ struct rte_port_eventdev_reader *p =
+ port;
+
+ if (stats != NULL)
+ memcpy(stats, &p->stats, sizeof(p->stats));
+
+ if (clear)
+ memset(&p->stats, 0, sizeof(p->stats));
+
+ return 0;
+}
+
+/*
+ * Port EVENTDEV Writer
+ */
+#ifdef RTE_PORT_STATS_COLLECT
+
+#define RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_IN_ADD(port, val) \
+ do {port->stats.n_pkts_in += val;} while (0)
+#define RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_DROP_ADD(port, val) \
+ do {port->stats.n_pkts_drop += val;} while (0)
+
+#else
+
+#define RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_IN_ADD(port, val)
+#define RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_DROP_ADD(port, val)
+
+#endif
+
+struct rte_port_eventdev_writer {
+ struct rte_port_out_stats stats;
+
+ struct rte_event ev[2 * RTE_PORT_IN_BURST_SIZE_MAX];
+
+ uint32_t enq_burst_sz;
+ uint32_t enq_buf_count;
+ uint64_t bsz_mask;
+
+ uint8_t eventdev_id;
+ uint8_t port_id;
+ uint8_t queue_id;
+ uint8_t sched_type;
+ uint8_t evt_op;
+};
+
+static void *
+rte_port_eventdev_writer_create(void *params, int socket_id)
+{
+ struct rte_port_eventdev_writer_params *conf =
+ params;
+ struct rte_port_eventdev_writer *port;
+ unsigned int i;
+
+ /* Check input parameters */
+ if ((conf == NULL) ||
+ (conf->enq_burst_sz == 0) ||
+ (conf->enq_burst_sz > RTE_PORT_IN_BURST_SIZE_MAX) ||
+ (!rte_is_power_of_2(conf->enq_burst_sz))) {
+ RTE_LOG(ERR, PORT, "%s: Invalid input parameters\n", __func__);
+ return NULL;
+ }
+
+ /* Memory allocation */
+ port = rte_zmalloc_socket("PORT", sizeof(*port),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (port == NULL) {
+ RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__);
+ return NULL;
+ }
+
+ /* Initialization */
+ port->enq_burst_sz = conf->enq_burst_sz;
+ port->enq_buf_count = 0;
+ port->bsz_mask = 1LLU << (conf->enq_burst_sz - 1);
+
+ port->eventdev_id = conf->eventdev_id;
+ port->port_id = conf->port_id;
+ port->queue_id = conf->queue_id;
+ port->sched_type = conf->sched_type;
+ port->evt_op = conf->evt_op;
+ memset(&port->ev, 0, sizeof(port->ev));
+
+ for (i = 0; i < ARRAY_SIZE(port->ev); i++) {
+ port->ev[i].queue_id = port->queue_id;
+ port->ev[i].sched_type = port->sched_type;
+ port->ev[i].op = port->evt_op;
+ }
+
+ return port;
+}
+
+static inline void
+send_burst(struct rte_port_eventdev_writer *p)
+{
+ uint32_t nb_enq;
+
+ nb_enq = rte_event_enqueue_burst(p->eventdev_id, p->port_id,
+ p->ev, p->enq_buf_count);
+
+ RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_DROP_ADD(p, p->enq_buf_count -
+ nb_enq);
+
+ for (; nb_enq < p->enq_buf_count; nb_enq++)
+ rte_pktmbuf_free(p->ev[nb_enq].mbuf);
+
+ p->enq_buf_count = 0;
+}
+
+static int
+rte_port_eventdev_writer_tx(void *port, struct rte_mbuf *pkt)
+{
+ struct rte_port_eventdev_writer *p = port;
+
+ p->ev[p->enq_buf_count++].mbuf = pkt;
+ RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_IN_ADD(p, 1);
+ if (p->enq_buf_count >= p->enq_burst_sz)
+ send_burst(p);
+
+ return 0;
+}
+
+static int
+rte_port_eventdev_writer_tx_bulk(void *port,
+ struct rte_mbuf **pkts,
+ uint64_t pkts_mask)
+{
+ struct rte_port_eventdev_writer *p =
+ port;
+ uint64_t bsz_mask = p->bsz_mask;
+ uint32_t enq_buf_count = p->enq_buf_count;
+ uint64_t expr = (pkts_mask & (pkts_mask + 1)) |
+ ((pkts_mask & bsz_mask) ^ bsz_mask);
+
+ if (expr == 0) {
+ uint64_t n_pkts = __builtin_popcountll(pkts_mask);
+ uint32_t i, n_enq_ok;
+
+ if (enq_buf_count)
+ send_burst(p);
+
+ RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_IN_ADD(p, n_pkts);
+
+ struct rte_event events[2 * RTE_PORT_IN_BURST_SIZE_MAX] = {};
+ for (i = 0; i < n_pkts; i++) {
+ events[i].mbuf = pkts[i];
+ events[i].queue_id = p->queue_id;
+ events[i].sched_type = p->sched_type;
+ events[i].op = p->evt_op;
+ }
+
+ n_enq_ok = rte_event_enqueue_burst(p->eventdev_id, p->port_id,
+ events, n_pkts);
+
+ RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_DROP_ADD(p,
+ n_pkts - n_enq_ok);
+ for (; n_enq_ok < n_pkts; n_enq_ok++)
+ rte_pktmbuf_free(pkts[n_enq_ok]);
+
+ } else {
+ for (; pkts_mask;) {
+ uint32_t pkt_index = __builtin_ctzll(pkts_mask);
+ uint64_t pkt_mask = 1LLU << pkt_index;
+
+ p->ev[enq_buf_count++].mbuf = pkts[pkt_index];
+
+ RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_IN_ADD(p, 1);
+ pkts_mask &= ~pkt_mask;
+ }
+
+ p->enq_buf_count = enq_buf_count;
+ if (enq_buf_count >= p->enq_burst_sz)
+ send_burst(p);
+ }
+
+ return 0;
+}
+
+static int
+rte_port_eventdev_writer_flush(void *port)
+{
+ struct rte_port_eventdev_writer *p =
+ port;
+
+ if (p->enq_buf_count > 0)
+ send_burst(p);
+
+ return 0;
+}
+
+static int
+rte_port_eventdev_writer_free(void *port)
+{
+ if (port == NULL) {
+ RTE_LOG(ERR, PORT, "%s: Port is NULL\n", __func__);
+ return -EINVAL;
+ }
+
+ rte_port_eventdev_writer_flush(port);
+ rte_free(port);
+
+ return 0;
+}
+
+static int rte_port_eventdev_writer_stats_read(void *port,
+ struct rte_port_out_stats *stats, int clear)
+{
+ struct rte_port_eventdev_writer *p =
+ port;
+
+ if (stats != NULL)
+ memcpy(stats, &p->stats, sizeof(p->stats));
+
+ if (clear)
+ memset(&p->stats, 0, sizeof(p->stats));
+
+ return 0;
+}
+
+/*
+ * Port EVENTDEV Writer Nodrop
+ */
+#ifdef RTE_PORT_STATS_COLLECT
+
+#define RTE_PORT_EVENTDEV_WRITER_NODROP_STATS_PKTS_IN_ADD(port, val) \
+ do {port->stats.n_pkts_in += val;} while (0)
+#define RTE_PORT_EVENTDEV_WRITER_NODROP_STATS_PKTS_DROP_ADD(port, val) \
+ do {port->stats.n_pkts_drop += val;} while (0)
+
+#else
+
+#define RTE_PORT_EVENTDEV_WRITER_NODROP_STATS_PKTS_IN_ADD(port, val)
+#define RTE_PORT_EVENTDEV_WRITER_NODROP_STATS_PKTS_DROP_ADD(port, val)
+
+#endif
+
+struct rte_port_eventdev_writer_nodrop {
+ struct rte_port_out_stats stats;
+
+ struct rte_event ev[2 * RTE_PORT_IN_BURST_SIZE_MAX];
+
+ uint32_t enq_burst_sz;
+ uint32_t enq_buf_count;
+ uint64_t bsz_mask;
+ uint64_t n_retries;
+ uint8_t eventdev_id;
+ uint8_t port_id;
+ uint8_t queue_id;
+ uint8_t sched_type;
+ uint8_t evt_op;
+};
+
+
+static void *
+rte_port_eventdev_writer_nodrop_create(void *params, int socket_id)
+{
+ struct rte_port_eventdev_writer_nodrop_params *conf =
+ params;
+ struct rte_port_eventdev_writer_nodrop *port;
+ unsigned int i;
+
+ /* Check input parameters */
+ if ((conf == NULL) ||
+ (conf->enq_burst_sz == 0) ||
+ (conf->enq_burst_sz > RTE_PORT_IN_BURST_SIZE_MAX) ||
+ (!rte_is_power_of_2(conf->enq_burst_sz))) {
+ RTE_LOG(ERR, PORT, "%s: Invalid input parameters\n", __func__);
+ return NULL;
+ }
+
+ /* Memory allocation */
+ port = rte_zmalloc_socket("PORT", sizeof(*port),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (port == NULL) {
+ RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__);
+ return NULL;
+ }
+
+ /* Initialization */
+ port->enq_burst_sz = conf->enq_burst_sz;
+ port->enq_buf_count = 0;
+ port->bsz_mask = 1LLU << (conf->enq_burst_sz - 1);
+
+ port->eventdev_id = conf->eventdev_id;
+ port->port_id = conf->port_id;
+ port->queue_id = conf->queue_id;
+ port->sched_type = conf->sched_type;
+ port->evt_op = conf->evt_op;
+ memset(&port->ev, 0, sizeof(port->ev));
+
+ for (i = 0; i < ARRAY_SIZE(port->ev); i++) {
+ port->ev[i].queue_id = port->queue_id;
+ port->ev[i].sched_type = port->sched_type;
+ port->ev[i].op = port->evt_op;
+ }
+ /*
+ * When n_retries is 0 it means that we should wait for every event to
+ * send no matter how many retries should it take. To limit number of
+ * branches in fast path, we use UINT64_MAX instead of branching.
+ */
+ port->n_retries = (conf->n_retries == 0) ? UINT64_MAX : conf->n_retries;
+
+ return port;
+}
+
+static inline void
+send_burst_nodrop(struct rte_port_eventdev_writer_nodrop *p)
+{
+ uint32_t nb_enq, i;
+
+ nb_enq = rte_event_enqueue_burst(p->eventdev_id, p->port_id,
+ p->ev, p->enq_buf_count);
+
+ /* We sent all the packets in a first try */
+ if (nb_enq >= p->enq_buf_count) {
+ p->enq_buf_count = 0;
+ return;
+ }
+
+ for (i = 0; i < p->n_retries; i++) {
+ nb_enq += rte_event_enqueue_burst(p->eventdev_id, p->port_id,
+ p->ev + nb_enq,
+ p->enq_buf_count - nb_enq);
+
+ /* We sent all the events in more than one try */
+ if (nb_enq >= p->enq_buf_count) {
+ p->enq_buf_count = 0;
+ return;
+ }
+ }
+ /* We didn't send the events in maximum allowed attempts */
+ RTE_PORT_EVENTDEV_WRITER_NODROP_STATS_PKTS_DROP_ADD(p,
+ p->enq_buf_count - nb_enq);
+ for (; nb_enq < p->enq_buf_count; nb_enq++)
+ rte_pktmbuf_free(p->ev[nb_enq].mbuf);
+
+ p->enq_buf_count = 0;
+}
+
+static int
+rte_port_eventdev_writer_nodrop_tx(void *port, struct rte_mbuf *pkt)
+{
+ struct rte_port_eventdev_writer_nodrop *p = port;
+
+ p->ev[p->enq_buf_count++].mbuf = pkt;
+
+ RTE_PORT_EVENTDEV_WRITER_NODROP_STATS_PKTS_IN_ADD(p, 1);
+ if (p->enq_buf_count >= p->enq_burst_sz)
+ send_burst_nodrop(p);
+
+ return 0;
+}
+
+static int
+rte_port_eventdev_writer_nodrop_tx_bulk(void *port,
+ struct rte_mbuf **pkts,
+ uint64_t pkts_mask)
+{
+ struct rte_port_eventdev_writer_nodrop *p =
+ port;
+
+ uint64_t bsz_mask = p->bsz_mask;
+ uint32_t enq_buf_count = p->enq_buf_count;
+ uint64_t expr = (pkts_mask & (pkts_mask + 1)) |
+ ((pkts_mask & bsz_mask) ^ bsz_mask);
+
+ if (expr == 0) {
+ uint64_t n_pkts = __builtin_popcountll(pkts_mask);
+ uint32_t i, n_enq_ok;
+
+ if (enq_buf_count)
+ send_burst_nodrop(p);
+
+ RTE_PORT_EVENTDEV_WRITER_NODROP_STATS_PKTS_IN_ADD(p, n_pkts);
+
+ struct rte_event events[RTE_PORT_IN_BURST_SIZE_MAX] = {};
+
+ for (i = 0; i < n_pkts; i++) {
+ events[i].mbuf = pkts[i];
+ events[i].queue_id = p->queue_id;
+ events[i].sched_type = p->sched_type;
+ events[i].op = p->evt_op;
+ }
+
+ n_enq_ok = rte_event_enqueue_burst(p->eventdev_id, p->port_id,
+ events, n_pkts);
+
+ if (n_enq_ok >= n_pkts)
+ return 0;
+
+ /*
+ * If we did not manage to enqueue all events in single burst,
+ * move remaining events to the buffer and call send burst.
+ */
+ for (; n_enq_ok < n_pkts; n_enq_ok++) {
+ struct rte_mbuf *pkt = pkts[n_enq_ok];
+ p->ev[p->enq_buf_count++].mbuf = pkt;
+ }
+ send_burst_nodrop(p);
+ } else {
+ for (; pkts_mask;) {
+ uint32_t pkt_index = __builtin_ctzll(pkts_mask);
+ uint64_t pkt_mask = 1LLU << pkt_index;
+
+ p->ev[enq_buf_count++].mbuf = pkts[pkt_index];
+
+ RTE_PORT_EVENTDEV_WRITER_STATS_PKTS_IN_ADD(p, 1);
+ pkts_mask &= ~pkt_mask;
+ }
+
+ p->enq_buf_count = enq_buf_count;
+ if (enq_buf_count >= p->enq_burst_sz)
+ send_burst_nodrop(p);
+ }
+
+ return 0;
+}
+
+static int
+rte_port_eventdev_writer_nodrop_flush(void *port)
+{
+ struct rte_port_eventdev_writer_nodrop *p =
+ port;
+
+ if (p->enq_buf_count > 0)
+ send_burst_nodrop(p);
+
+ return 0;
+}
+
+static int
+rte_port_eventdev_writer_nodrop_free(void *port)
+{
+ if (port == NULL) {
+ RTE_LOG(ERR, PORT, "%s: Port is NULL\n", __func__);
+ return -EINVAL;
+ }
+
+ rte_port_eventdev_writer_nodrop_flush(port);
+ rte_free(port);
+
+ return 0;
+}
+
+static int rte_port_eventdev_writer_nodrop_stats_read(void *port,
+ struct rte_port_out_stats *stats, int clear)
+{
+ struct rte_port_eventdev_writer_nodrop *p =
+ port;
+
+ if (stats != NULL)
+ memcpy(stats, &p->stats, sizeof(p->stats));
+
+ if (clear)
+ memset(&p->stats, 0, sizeof(p->stats));
+
+ return 0;
+}
+
+/*
+ * Summary of port operations
+ */
+struct rte_port_in_ops rte_port_eventdev_reader_ops = {
+ .f_create = rte_port_eventdev_reader_create,
+ .f_free = rte_port_eventdev_reader_free,
+ .f_rx = rte_port_eventdev_reader_rx,
+ .f_stats = rte_port_eventdev_reader_stats_read,
+};
+
+struct rte_port_out_ops rte_port_eventdev_writer_ops = {
+ .f_create = rte_port_eventdev_writer_create,
+ .f_free = rte_port_eventdev_writer_free,
+ .f_tx = rte_port_eventdev_writer_tx,
+ .f_tx_bulk = rte_port_eventdev_writer_tx_bulk,
+ .f_flush = rte_port_eventdev_writer_flush,
+ .f_stats = rte_port_eventdev_writer_stats_read,
+};
+
+struct rte_port_out_ops rte_port_eventdev_writer_nodrop_ops = {
+ .f_create = rte_port_eventdev_writer_nodrop_create,
+ .f_free = rte_port_eventdev_writer_nodrop_free,
+ .f_tx = rte_port_eventdev_writer_nodrop_tx,
+ .f_tx_bulk = rte_port_eventdev_writer_nodrop_tx_bulk,
+ .f_flush = rte_port_eventdev_writer_nodrop_flush,
+ .f_stats = rte_port_eventdev_writer_nodrop_stats_read,
+};
git.droids-corp.org / dpdk.git / commitdiff