diff options
Diffstat (limited to 'examples/eventdev_pipeline_sw_pmd/main.c')
| -rw-r--r-- | examples/eventdev_pipeline_sw_pmd/main.c | 1017 |
1 files changed, 1017 insertions, 0 deletions
diff --git a/examples/eventdev_pipeline_sw_pmd/main.c b/examples/eventdev_pipeline_sw_pmd/main.c new file mode 100644 index 00000000..dd75cb7a --- /dev/null +++ b/examples/eventdev_pipeline_sw_pmd/main.c @@ -0,0 +1,1017 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2016-2017 Intel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <getopt.h> +#include <stdint.h> +#include <stdio.h> +#include <signal.h> +#include <sched.h> +#include <stdbool.h> + +#include <rte_eal.h> +#include <rte_mempool.h> +#include <rte_mbuf.h> +#include <rte_launch.h> +#include <rte_malloc.h> +#include <rte_random.h> +#include <rte_cycles.h> +#include <rte_ethdev.h> +#include <rte_eventdev.h> + +#define MAX_NUM_STAGES 8 +#define BATCH_SIZE 16 +#define MAX_NUM_CORE 64 + +struct prod_data { + uint8_t dev_id; + uint8_t port_id; + int32_t qid; + unsigned int num_nic_ports; +} __rte_cache_aligned; + +struct cons_data { + uint8_t dev_id; + uint8_t port_id; +} __rte_cache_aligned; + +static struct prod_data prod_data; +static struct cons_data cons_data; + +struct worker_data { + uint8_t dev_id; + uint8_t port_id; +} __rte_cache_aligned; + +struct fastpath_data { + volatile int done; + uint32_t rx_lock; + uint32_t tx_lock; + uint32_t sched_lock; + bool rx_single; + bool tx_single; + bool sched_single; + unsigned int rx_core[MAX_NUM_CORE]; + unsigned int tx_core[MAX_NUM_CORE]; + unsigned int sched_core[MAX_NUM_CORE]; + unsigned int worker_core[MAX_NUM_CORE]; + struct rte_eth_dev_tx_buffer *tx_buf[RTE_MAX_ETHPORTS]; +}; + +static struct fastpath_data *fdata; + +struct config_data { + unsigned int active_cores; + unsigned int num_workers; + int64_t num_packets; + unsigned int num_fids; + int queue_type; + int worker_cycles; + int enable_queue_priorities; + int quiet; + int dump_dev; + int dump_dev_signal; + unsigned int num_stages; + unsigned int worker_cq_depth; + int16_t next_qid[MAX_NUM_STAGES+2]; + int16_t qid[MAX_NUM_STAGES]; +}; + +static struct config_data cdata = { + .num_packets = (1L << 25), /* do ~32M packets */ + .num_fids = 512, + .queue_type = RTE_EVENT_QUEUE_CFG_ATOMIC_ONLY, + .next_qid = {-1}, + .qid = {-1}, + .num_stages = 1, + .worker_cq_depth = 16 +}; + +static bool +core_in_use(unsigned int lcore_id) { + return (fdata->rx_core[lcore_id] || fdata->sched_core[lcore_id] || + fdata->tx_core[lcore_id] || fdata->worker_core[lcore_id]); +} + +static void +eth_tx_buffer_retry(struct rte_mbuf **pkts, uint16_t unsent, + void *userdata) +{ + int port_id = (uintptr_t) userdata; + unsigned int _sent = 0; + + do { + /* Note: hard-coded TX queue */ + _sent += rte_eth_tx_burst(port_id, 0, &pkts[_sent], + unsent - _sent); + } while (_sent != unsent); +} + +static int +consumer(void) +{ + const uint64_t freq_khz = rte_get_timer_hz() / 1000; + struct rte_event packets[BATCH_SIZE]; + + static uint64_t received; + static uint64_t last_pkts; + static uint64_t last_time; + static uint64_t start_time; + unsigned int i, j; + uint8_t dev_id = cons_data.dev_id; + uint8_t port_id = cons_data.port_id; + + uint16_t n = rte_event_dequeue_burst(dev_id, port_id, + packets, RTE_DIM(packets), 0); + + if (n == 0) { + for (j = 0; j < rte_eth_dev_count(); j++) + rte_eth_tx_buffer_flush(j, 0, fdata->tx_buf[j]); + return 0; + } + if (start_time == 0) + last_time = start_time = rte_get_timer_cycles(); + + received += n; + for (i = 0; i < n; i++) { + uint8_t outport = packets[i].mbuf->port; + rte_eth_tx_buffer(outport, 0, fdata->tx_buf[outport], + packets[i].mbuf); + } + + /* Print out mpps every 1<22 packets */ + if (!cdata.quiet && received >= last_pkts + (1<<22)) { + const uint64_t now = rte_get_timer_cycles(); + const uint64_t total_ms = (now - start_time) / freq_khz; + const uint64_t delta_ms = (now - last_time) / freq_khz; + uint64_t delta_pkts = received - last_pkts; + + printf("# consumer RX=%"PRIu64", time %"PRIu64 "ms, " + "avg %.3f mpps [current %.3f mpps]\n", + received, + total_ms, + received / (total_ms * 1000.0), + delta_pkts / (delta_ms * 1000.0)); + last_pkts = received; + last_time = now; + } + + cdata.num_packets -= n; + if (cdata.num_packets <= 0) + fdata->done = 1; + + return 0; +} + +static int +producer(void) +{ + static uint8_t eth_port; + struct rte_mbuf *mbufs[BATCH_SIZE+2]; + struct rte_event ev[BATCH_SIZE+2]; + uint32_t i, num_ports = prod_data.num_nic_ports; + int32_t qid = prod_data.qid; + uint8_t dev_id = prod_data.dev_id; + uint8_t port_id = prod_data.port_id; + uint32_t prio_idx = 0; + + const uint16_t nb_rx = rte_eth_rx_burst(eth_port, 0, mbufs, BATCH_SIZE); + if (++eth_port == num_ports) + eth_port = 0; + if (nb_rx == 0) { + rte_pause(); + return 0; + } + + for (i = 0; i < nb_rx; i++) { + ev[i].flow_id = mbufs[i]->hash.rss; + ev[i].op = RTE_EVENT_OP_NEW; + ev[i].sched_type = cdata.queue_type; + ev[i].queue_id = qid; + ev[i].event_type = RTE_EVENT_TYPE_ETHDEV; + ev[i].sub_event_type = 0; + ev[i].priority = RTE_EVENT_DEV_PRIORITY_NORMAL; + ev[i].mbuf = mbufs[i]; + RTE_SET_USED(prio_idx); + } + + const int nb_tx = rte_event_enqueue_burst(dev_id, port_id, ev, nb_rx); + if (nb_tx != nb_rx) { + for (i = nb_tx; i < nb_rx; i++) + rte_pktmbuf_free(mbufs[i]); + } + + return 0; +} + +static inline void +schedule_devices(uint8_t dev_id, unsigned int lcore_id) +{ + if (fdata->rx_core[lcore_id] && (fdata->rx_single || + rte_atomic32_cmpset(&(fdata->rx_lock), 0, 1))) { + producer(); + rte_atomic32_clear((rte_atomic32_t *)&(fdata->rx_lock)); + } + + if (fdata->sched_core[lcore_id] && (fdata->sched_single || + rte_atomic32_cmpset(&(fdata->sched_lock), 0, 1))) { + rte_event_schedule(dev_id); + if (cdata.dump_dev_signal) { + rte_event_dev_dump(0, stdout); + cdata.dump_dev_signal = 0; + } + rte_atomic32_clear((rte_atomic32_t *)&(fdata->sched_lock)); + } + + if (fdata->tx_core[lcore_id] && (fdata->tx_single || + rte_atomic32_cmpset(&(fdata->tx_lock), 0, 1))) { + consumer(); + rte_atomic32_clear((rte_atomic32_t *)&(fdata->tx_lock)); + } +} + +static inline void +work(struct rte_mbuf *m) +{ + struct ether_hdr *eth; + struct ether_addr addr; + + /* change mac addresses on packet (to use mbuf data) */ + /* + * FIXME Swap mac address properly and also handle the + * case for both odd and even number of stages that the + * addresses end up the same at the end of the pipeline + */ + eth = rte_pktmbuf_mtod(m, struct ether_hdr *); + ether_addr_copy(ð->d_addr, &addr); + ether_addr_copy(&addr, ð->d_addr); + + /* do a number of cycles of work per packet */ + volatile uint64_t start_tsc = rte_rdtsc(); + while (rte_rdtsc() < start_tsc + cdata.worker_cycles) + rte_pause(); +} + +static int +worker(void *arg) +{ + struct rte_event events[BATCH_SIZE]; + + struct worker_data *data = (struct worker_data *)arg; + uint8_t dev_id = data->dev_id; + uint8_t port_id = data->port_id; + size_t sent = 0, received = 0; + unsigned int lcore_id = rte_lcore_id(); + + while (!fdata->done) { + uint16_t i; + + schedule_devices(dev_id, lcore_id); + + if (!fdata->worker_core[lcore_id]) { + rte_pause(); + continue; + } + + const uint16_t nb_rx = rte_event_dequeue_burst(dev_id, port_id, + events, RTE_DIM(events), 0); + + if (nb_rx == 0) { + rte_pause(); + continue; + } + received += nb_rx; + + for (i = 0; i < nb_rx; i++) { + + /* The first worker stage does classification */ + if (events[i].queue_id == cdata.qid[0]) + events[i].flow_id = events[i].mbuf->hash.rss + % cdata.num_fids; + + events[i].queue_id = cdata.next_qid[events[i].queue_id]; + events[i].op = RTE_EVENT_OP_FORWARD; + events[i].sched_type = cdata.queue_type; + + work(events[i].mbuf); + } + uint16_t nb_tx = rte_event_enqueue_burst(dev_id, port_id, + events, nb_rx); + while (nb_tx < nb_rx && !fdata->done) + nb_tx += rte_event_enqueue_burst(dev_id, port_id, + events + nb_tx, + nb_rx - nb_tx); + sent += nb_tx; + } + + if (!cdata.quiet) + printf(" worker %u thread done. RX=%zu TX=%zu\n", + rte_lcore_id(), received, sent); + + return 0; +} + +/* + * Parse the coremask given as argument (hexadecimal string) and fill + * the global configuration (core role and core count) with the parsed + * value. + */ +static int xdigit2val(unsigned char c) +{ + int val; + + if (isdigit(c)) + val = c - '0'; + else if (isupper(c)) + val = c - 'A' + 10; + else + val = c - 'a' + 10; + return val; +} + +static uint64_t +parse_coremask(const char *coremask) +{ + int i, j, idx = 0; + unsigned int count = 0; + char c; + int val; + uint64_t mask = 0; + const int32_t BITS_HEX = 4; + + if (coremask == NULL) + return -1; + /* Remove all blank characters ahead and after . + * Remove 0x/0X if exists. + */ + while (isblank(*coremask)) + coremask++; + if (coremask[0] == '0' && ((coremask[1] == 'x') + || (coremask[1] == 'X'))) + coremask += 2; + i = strlen(coremask); + while ((i > 0) && isblank(coremask[i - 1])) + i--; + if (i == 0) + return -1; + + for (i = i - 1; i >= 0 && idx < MAX_NUM_CORE; i--) { + c = coremask[i]; + if (isxdigit(c) == 0) { + /* invalid characters */ + return -1; + } + val = xdigit2val(c); + for (j = 0; j < BITS_HEX && idx < MAX_NUM_CORE; j++, idx++) { + if ((1 << j) & val) { + mask |= (1UL << idx); + count++; + } + } + } + for (; i >= 0; i--) + if (coremask[i] != '0') + return -1; + if (count == 0) + return -1; + return mask; +} + +static struct option long_options[] = { + {"workers", required_argument, 0, 'w'}, + {"packets", required_argument, 0, 'n'}, + {"atomic-flows", required_argument, 0, 'f'}, + {"num_stages", required_argument, 0, 's'}, + {"rx-mask", required_argument, 0, 'r'}, + {"tx-mask", required_argument, 0, 't'}, + {"sched-mask", required_argument, 0, 'e'}, + {"cq-depth", required_argument, 0, 'c'}, + {"work-cycles", required_argument, 0, 'W'}, + {"queue-priority", no_argument, 0, 'P'}, + {"parallel", no_argument, 0, 'p'}, + {"ordered", no_argument, 0, 'o'}, + {"quiet", no_argument, 0, 'q'}, + {"dump", no_argument, 0, 'D'}, + {0, 0, 0, 0} +}; + +static void +usage(void) +{ + const char *usage_str = + " Usage: eventdev_demo [options]\n" + " Options:\n" + " -n, --packets=N Send N packets (default ~32M), 0 implies no limit\n" + " -f, --atomic-flows=N Use N random flows from 1 to N (default 16)\n" + " -s, --num_stages=N Use N atomic stages (default 1)\n" + " -r, --rx-mask=core mask Run NIC rx on CPUs in core mask\n" + " -w, --worker-mask=core mask Run worker on CPUs in core mask\n" + " -t, --tx-mask=core mask Run NIC tx on CPUs in core mask\n" + " -e --sched-mask=core mask Run scheduler on CPUs in core mask\n" + " -c --cq-depth=N Worker CQ depth (default 16)\n" + " -W --work-cycles=N Worker cycles (default 0)\n" + " -P --queue-priority Enable scheduler queue prioritization\n" + " -o, --ordered Use ordered scheduling\n" + " -p, --parallel Use parallel scheduling\n" + " -q, --quiet Minimize printed output\n" + " -D, --dump Print detailed statistics before exit" + "\n"; + fprintf(stderr, "%s", usage_str); + exit(1); +} + +static void +parse_app_args(int argc, char **argv) +{ + /* Parse cli options*/ + int option_index; + int c; + opterr = 0; + uint64_t rx_lcore_mask = 0; + uint64_t tx_lcore_mask = 0; + uint64_t sched_lcore_mask = 0; + uint64_t worker_lcore_mask = 0; + int i; + + for (;;) { + c = getopt_long(argc, argv, "r:t:e:c:w:n:f:s:poPqDW:", + long_options, &option_index); + if (c == -1) + break; + + int popcnt = 0; + switch (c) { + case 'n': + cdata.num_packets = (int64_t)atol(optarg); + if (cdata.num_packets == 0) + cdata.num_packets = INT64_MAX; + break; + case 'f': + cdata.num_fids = (unsigned int)atoi(optarg); + break; + case 's': + cdata.num_stages = (unsigned int)atoi(optarg); + break; + case 'c': + cdata.worker_cq_depth = (unsigned int)atoi(optarg); + break; + case 'W': + cdata.worker_cycles = (unsigned int)atoi(optarg); + break; + case 'P': + cdata.enable_queue_priorities = 1; + break; + case 'o': + cdata.queue_type = RTE_EVENT_QUEUE_CFG_ORDERED_ONLY; + break; + case 'p': + cdata.queue_type = RTE_EVENT_QUEUE_CFG_PARALLEL_ONLY; + break; + case 'q': + cdata.quiet = 1; + break; + case 'D': + cdata.dump_dev = 1; + break; + case 'w': + worker_lcore_mask = parse_coremask(optarg); + break; + case 'r': + rx_lcore_mask = parse_coremask(optarg); + popcnt = __builtin_popcountll(rx_lcore_mask); + fdata->rx_single = (popcnt == 1); + break; + case 't': + tx_lcore_mask = parse_coremask(optarg); + popcnt = __builtin_popcountll(tx_lcore_mask); + fdata->tx_single = (popcnt == 1); + break; + case 'e': + sched_lcore_mask = parse_coremask(optarg); + popcnt = __builtin_popcountll(sched_lcore_mask); + fdata->sched_single = (popcnt == 1); + break; + default: + usage(); + } + } + + if (worker_lcore_mask == 0 || rx_lcore_mask == 0 || + sched_lcore_mask == 0 || tx_lcore_mask == 0) { + printf("Core part of pipeline was not assigned any cores. " + "This will stall the pipeline, please check core masks " + "(use -h for details on setting core masks):\n" + "\trx: %"PRIu64"\n\ttx: %"PRIu64"\n\tsched: %"PRIu64 + "\n\tworkers: %"PRIu64"\n", + rx_lcore_mask, tx_lcore_mask, sched_lcore_mask, + worker_lcore_mask); + rte_exit(-1, "Fix core masks\n"); + } + if (cdata.num_stages == 0 || cdata.num_stages > MAX_NUM_STAGES) + usage(); + + for (i = 0; i < MAX_NUM_CORE; i++) { + fdata->rx_core[i] = !!(rx_lcore_mask & (1UL << i)); + fdata->tx_core[i] = !!(tx_lcore_mask & (1UL << i)); + fdata->sched_core[i] = !!(sched_lcore_mask & (1UL << i)); + fdata->worker_core[i] = !!(worker_lcore_mask & (1UL << i)); + + if (fdata->worker_core[i]) + cdata.num_workers++; + if (core_in_use(i)) + cdata.active_cores++; + } +} + +/* + * Initializes a given port using global settings and with the RX buffers + * coming from the mbuf_pool passed as a parameter. + */ +static inline int +port_init(uint8_t port, struct rte_mempool *mbuf_pool) +{ + static const struct rte_eth_conf port_conf_default = { + .rxmode = { + .mq_mode = ETH_MQ_RX_RSS, + .max_rx_pkt_len = ETHER_MAX_LEN + }, + .rx_adv_conf = { + .rss_conf = { + .rss_hf = ETH_RSS_IP | + ETH_RSS_TCP | + ETH_RSS_UDP, + } + } + }; + const uint16_t rx_rings = 1, tx_rings = 1; + const uint16_t rx_ring_size = 512, tx_ring_size = 512; + struct rte_eth_conf port_conf = port_conf_default; + int retval; + uint16_t q; + + if (port >= rte_eth_dev_count()) + return -1; + + /* Configure the Ethernet device. */ + retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf); + if (retval != 0) + return retval; + + /* Allocate and set up 1 RX queue per Ethernet port. */ + for (q = 0; q < rx_rings; q++) { + retval = rte_eth_rx_queue_setup(port, q, rx_ring_size, + rte_eth_dev_socket_id(port), NULL, mbuf_pool); + if (retval < 0) + return retval; + } + + /* Allocate and set up 1 TX queue per Ethernet port. */ + for (q = 0; q < tx_rings; q++) { + retval = rte_eth_tx_queue_setup(port, q, tx_ring_size, + rte_eth_dev_socket_id(port), NULL); + if (retval < 0) + return retval; + } + + /* Start the Ethernet port. */ + retval = rte_eth_dev_start(port); + if (retval < 0) + return retval; + + /* Display the port MAC address. */ + struct ether_addr addr; + rte_eth_macaddr_get(port, &addr); + printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8 + " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n", + (unsigned int)port, + addr.addr_bytes[0], addr.addr_bytes[1], + addr.addr_bytes[2], addr.addr_bytes[3], + addr.addr_bytes[4], addr.addr_bytes[5]); + + /* Enable RX in promiscuous mode for the Ethernet device. */ + rte_eth_promiscuous_enable(port); + + return 0; +} + +static int +init_ports(unsigned int num_ports) +{ + uint8_t portid; + unsigned int i; + + struct rte_mempool *mp = rte_pktmbuf_pool_create("packet_pool", + /* mbufs */ 16384 * num_ports, + /* cache_size */ 512, + /* priv_size*/ 0, + /* data_room_size */ RTE_MBUF_DEFAULT_BUF_SIZE, + rte_socket_id()); + + for (portid = 0; portid < num_ports; portid++) + if (port_init(portid, mp) != 0) + rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8 "\n", + portid); + + for (i = 0; i < num_ports; i++) { + void *userdata = (void *)(uintptr_t) i; + fdata->tx_buf[i] = + rte_malloc(NULL, RTE_ETH_TX_BUFFER_SIZE(32), 0); + if (fdata->tx_buf[i] == NULL) + rte_panic("Out of memory\n"); + rte_eth_tx_buffer_init(fdata->tx_buf[i], 32); + rte_eth_tx_buffer_set_err_callback(fdata->tx_buf[i], + eth_tx_buffer_retry, + userdata); + } + + return 0; +} + +struct port_link { + uint8_t queue_id; + uint8_t priority; +}; + +static int +setup_eventdev(struct prod_data *prod_data, + struct cons_data *cons_data, + struct worker_data *worker_data) +{ + const uint8_t dev_id = 0; + /* +1 stages is for a SINGLE_LINK TX stage */ + const uint8_t nb_queues = cdata.num_stages + 1; + /* + 2 is one port for producer and one for consumer */ + const uint8_t nb_ports = cdata.num_workers + 2; + struct rte_event_dev_config config = { + .nb_event_queues = nb_queues, + .nb_event_ports = nb_ports, + .nb_events_limit = 4096, + .nb_event_queue_flows = 1024, + .nb_event_port_dequeue_depth = 128, + .nb_event_port_enqueue_depth = 128, + }; + struct rte_event_port_conf wkr_p_conf = { + .dequeue_depth = cdata.worker_cq_depth, + .enqueue_depth = 64, + .new_event_threshold = 4096, + }; + struct rte_event_queue_conf wkr_q_conf = { + .event_queue_cfg = cdata.queue_type, + .priority = RTE_EVENT_DEV_PRIORITY_NORMAL, + .nb_atomic_flows = 1024, + .nb_atomic_order_sequences = 1024, + }; + struct rte_event_port_conf tx_p_conf = { + .dequeue_depth = 128, + .enqueue_depth = 128, + .new_event_threshold = 4096, + }; + const struct rte_event_queue_conf tx_q_conf = { + .priority = RTE_EVENT_DEV_PRIORITY_HIGHEST, + .event_queue_cfg = + RTE_EVENT_QUEUE_CFG_ATOMIC_ONLY | + RTE_EVENT_QUEUE_CFG_SINGLE_LINK, + .nb_atomic_flows = 1024, + .nb_atomic_order_sequences = 1024, + }; + + struct port_link worker_queues[MAX_NUM_STAGES]; + struct port_link tx_queue; + unsigned int i; + + int ret, ndev = rte_event_dev_count(); + if (ndev < 1) { + printf("%d: No Eventdev Devices Found\n", __LINE__); + return -1; + } + + struct rte_event_dev_info dev_info; + ret = rte_event_dev_info_get(dev_id, &dev_info); + printf("\tEventdev %d: %s\n", dev_id, dev_info.driver_name); + + if (dev_info.max_event_port_dequeue_depth < + config.nb_event_port_dequeue_depth) + config.nb_event_port_dequeue_depth = + dev_info.max_event_port_dequeue_depth; + if (dev_info.max_event_port_enqueue_depth < + config.nb_event_port_enqueue_depth) + config.nb_event_port_enqueue_depth = + dev_info.max_event_port_enqueue_depth; + + ret = rte_event_dev_configure(dev_id, &config); + if (ret < 0) { + printf("%d: Error configuring device\n", __LINE__); + return -1; + } + + /* Q creation - one load balanced per pipeline stage*/ + printf(" Stages:\n"); + for (i = 0; i < cdata.num_stages; i++) { + if (rte_event_queue_setup(dev_id, i, &wkr_q_conf) < 0) { + printf("%d: error creating qid %d\n", __LINE__, i); + return -1; + } + cdata.qid[i] = i; + cdata.next_qid[i] = i+1; + worker_queues[i].queue_id = i; + if (cdata.enable_queue_priorities) { + /* calculate priority stepping for each stage, leaving + * headroom of 1 for the SINGLE_LINK TX below + */ + const uint32_t prio_delta = + (RTE_EVENT_DEV_PRIORITY_LOWEST-1) / nb_queues; + + /* higher priority for queues closer to tx */ + wkr_q_conf.priority = + RTE_EVENT_DEV_PRIORITY_LOWEST - prio_delta * i; + } + + const char *type_str = "Atomic"; + switch (wkr_q_conf.event_queue_cfg) { + case RTE_EVENT_QUEUE_CFG_ORDERED_ONLY: + type_str = "Ordered"; + break; + case RTE_EVENT_QUEUE_CFG_PARALLEL_ONLY: + type_str = "Parallel"; + break; + } + printf("\tStage %d, Type %s\tPriority = %d\n", i, type_str, + wkr_q_conf.priority); + } + printf("\n"); + + /* final queue for sending to TX core */ + if (rte_event_queue_setup(dev_id, i, &tx_q_conf) < 0) { + printf("%d: error creating qid %d\n", __LINE__, i); + return -1; + } + tx_queue.queue_id = i; + tx_queue.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST; + + if (wkr_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth) + wkr_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth; + if (wkr_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth) + wkr_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth; + + /* set up one port per worker, linking to all stage queues */ + for (i = 0; i < cdata.num_workers; i++) { + struct worker_data *w = &worker_data[i]; + w->dev_id = dev_id; + if (rte_event_port_setup(dev_id, i, &wkr_p_conf) < 0) { + printf("Error setting up port %d\n", i); + return -1; + } + + uint32_t s; + for (s = 0; s < cdata.num_stages; s++) { + if (rte_event_port_link(dev_id, i, + &worker_queues[s].queue_id, + &worker_queues[s].priority, + 1) != 1) { + printf("%d: error creating link for port %d\n", + __LINE__, i); + return -1; + } + } + w->port_id = i; + } + + if (tx_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth) + tx_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth; + if (tx_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth) + tx_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth; + + /* port for consumer, linked to TX queue */ + if (rte_event_port_setup(dev_id, i, &tx_p_conf) < 0) { + printf("Error setting up port %d\n", i); + return -1; + } + if (rte_event_port_link(dev_id, i, &tx_queue.queue_id, + &tx_queue.priority, 1) != 1) { + printf("%d: error creating link for port %d\n", + __LINE__, i); + return -1; + } + /* port for producer, no links */ + struct rte_event_port_conf rx_p_conf = { + .dequeue_depth = 8, + .enqueue_depth = 8, + .new_event_threshold = 1200, + }; + + if (rx_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth) + rx_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth; + if (rx_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth) + rx_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth; + + if (rte_event_port_setup(dev_id, i + 1, &rx_p_conf) < 0) { + printf("Error setting up port %d\n", i); + return -1; + } + + *prod_data = (struct prod_data){.dev_id = dev_id, + .port_id = i + 1, + .qid = cdata.qid[0] }; + *cons_data = (struct cons_data){.dev_id = dev_id, + .port_id = i }; + + if (rte_event_dev_start(dev_id) < 0) { + printf("Error starting eventdev\n"); + return -1; + } + + return dev_id; +} + +static void +signal_handler(int signum) +{ + if (fdata->done) + rte_exit(1, "Exiting on signal %d\n", signum); + if (signum == SIGINT || signum == SIGTERM) { + printf("\n\nSignal %d received, preparing to exit...\n", + signum); + fdata->done = 1; + } + if (signum == SIGTSTP) + rte_event_dev_dump(0, stdout); +} + +static inline uint64_t +port_stat(int dev_id, int32_t p) +{ + char statname[64]; + snprintf(statname, sizeof(statname), "port_%u_rx", p); + return rte_event_dev_xstats_by_name_get(dev_id, statname, NULL); +} + +int +main(int argc, char **argv) +{ + struct worker_data *worker_data; + unsigned int num_ports; + int lcore_id; + int err; + + signal(SIGINT, signal_handler); + signal(SIGTERM, signal_handler); + signal(SIGTSTP, signal_handler); + + err = rte_eal_init(argc, argv); + if (err < 0) + rte_panic("Invalid EAL arguments\n"); + + argc -= err; + argv += err; + + fdata = rte_malloc(NULL, sizeof(struct fastpath_data), 0); + if (fdata == NULL) + rte_panic("Out of memory\n"); + + /* Parse cli options*/ + parse_app_args(argc, argv); + + num_ports = rte_eth_dev_count(); + if (num_ports == 0) + rte_panic("No ethernet ports found\n"); + + const unsigned int cores_needed = cdata.active_cores; + + if (!cdata.quiet) { + printf(" Config:\n"); + printf("\tports: %u\n", num_ports); + printf("\tworkers: %u\n", cdata.num_workers); + printf("\tpackets: %"PRIi64"\n", cdata.num_packets); + printf("\tQueue-prio: %u\n", cdata.enable_queue_priorities); + if (cdata.queue_type == RTE_EVENT_QUEUE_CFG_ORDERED_ONLY) + printf("\tqid0 type: ordered\n"); + if (cdata.queue_type == RTE_EVENT_QUEUE_CFG_ATOMIC_ONLY) + printf("\tqid0 type: atomic\n"); + printf("\tCores available: %u\n", rte_lcore_count()); + printf("\tCores used: %u\n", cores_needed); + } + + if (rte_lcore_count() < cores_needed) + rte_panic("Too few cores (%d < %d)\n", rte_lcore_count(), + cores_needed); + + const unsigned int ndevs = rte_event_dev_count(); + if (ndevs == 0) + rte_panic("No dev_id devs found. Pasl in a --vdev eventdev.\n"); + if (ndevs > 1) + fprintf(stderr, "Warning: More than one eventdev, using idx 0"); + + worker_data = rte_calloc(0, cdata.num_workers, + sizeof(worker_data[0]), 0); + if (worker_data == NULL) + rte_panic("rte_calloc failed\n"); + + int dev_id = setup_eventdev(&prod_data, &cons_data, worker_data); + if (dev_id < 0) + rte_exit(EXIT_FAILURE, "Error setting up eventdev\n"); + + prod_data.num_nic_ports = num_ports; + init_ports(num_ports); + + int worker_idx = 0; + RTE_LCORE_FOREACH_SLAVE(lcore_id) { + if (lcore_id >= MAX_NUM_CORE) + break; + + if (!fdata->rx_core[lcore_id] && + !fdata->worker_core[lcore_id] && + !fdata->tx_core[lcore_id] && + !fdata->sched_core[lcore_id]) + continue; + + if (fdata->rx_core[lcore_id]) + printf( + "[%s()] lcore %d executing NIC Rx, and using eventdev port %u\n", + __func__, lcore_id, prod_data.port_id); + + if (fdata->tx_core[lcore_id]) + printf( + "[%s()] lcore %d executing NIC Tx, and using eventdev port %u\n", + __func__, lcore_id, cons_data.port_id); + + if (fdata->sched_core[lcore_id]) + printf("[%s()] lcore %d executing scheduler\n", + __func__, lcore_id); + + if (fdata->worker_core[lcore_id]) + printf( + "[%s()] lcore %d executing worker, using eventdev port %u\n", + __func__, lcore_id, + worker_data[worker_idx].port_id); + + err = rte_eal_remote_launch(worker, &worker_data[worker_idx], + lcore_id); + if (err) { + rte_panic("Failed to launch worker on core %d\n", + lcore_id); + continue; + } + if (fdata->worker_core[lcore_id]) + worker_idx++; + } + + lcore_id = rte_lcore_id(); + + if (core_in_use(lcore_id)) + worker(&worker_data[worker_idx++]); + + rte_eal_mp_wait_lcore(); + + if (cdata.dump_dev) + rte_event_dev_dump(dev_id, stdout); + + if (!cdata.quiet && (port_stat(dev_id, worker_data[0].port_id) != + (uint64_t)-ENOTSUP)) { + printf("\nPort Workload distribution:\n"); + uint32_t i; + uint64_t tot_pkts = 0; + uint64_t pkts_per_wkr[RTE_MAX_LCORE] = {0}; + for (i = 0; i < cdata.num_workers; i++) { + pkts_per_wkr[i] = + port_stat(dev_id, worker_data[i].port_id); + tot_pkts += pkts_per_wkr[i]; + } + for (i = 0; i < cdata.num_workers; i++) { + float pc = pkts_per_wkr[i] * 100 / + ((float)tot_pkts); + printf("worker %i :\t%.1f %% (%"PRIu64" pkts)\n", + i, pc, pkts_per_wkr[i]); + } + + } + + return 0; +} |