diff options
Diffstat (limited to 'examples/bbdev_app/main.c')
| -rw-r--r-- | examples/bbdev_app/main.c | 1162 |
1 files changed, 1162 insertions, 0 deletions
diff --git a/examples/bbdev_app/main.c b/examples/bbdev_app/main.c new file mode 100644 index 00000000..3c452569 --- /dev/null +++ b/examples/bbdev_app/main.c @@ -0,0 +1,1162 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2017 Intel Corporation + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdint.h> +#include <inttypes.h> +#include <sys/types.h> +#include <sys/unistd.h> +#include <sys/queue.h> +#include <stdarg.h> +#include <ctype.h> +#include <errno.h> +#include <math.h> +#include <assert.h> +#include <getopt.h> +#include <signal.h> + +#include "rte_atomic.h" +#include "rte_common.h" +#include "rte_eal.h" +#include "rte_cycles.h" +#include "rte_ether.h" +#include "rte_ethdev.h" +#include "rte_ip.h" +#include "rte_lcore.h" +#include "rte_malloc.h" +#include "rte_mbuf.h" +#include "rte_memory.h" +#include "rte_mempool.h" +#include "rte_log.h" +#include "rte_bbdev.h" +#include "rte_bbdev_op.h" + +/* LLR values - negative value for '1' bit */ +#define LLR_1_BIT 0x81 +#define LLR_0_BIT 0x7F + +#define MAX_PKT_BURST 32 +#define NB_MBUF 8191 +#define MEMPOOL_CACHE_SIZE 256 + +/* Hardcoded K value */ +#define K 40 +#define NCB (3 * RTE_ALIGN_CEIL(K + 4, 32)) + +#define CRC_24B_LEN 3 + +/* Configurable number of RX/TX ring descriptors */ +#define RTE_TEST_RX_DESC_DEFAULT 128 +#define RTE_TEST_TX_DESC_DEFAULT 512 + +#define BBDEV_ASSERT(a) do { \ + if (!(a)) { \ + usage(prgname); \ + return -1; \ + } \ +} while (0) + +static const struct rte_eth_conf port_conf = { + .rxmode = { + .mq_mode = ETH_MQ_RX_NONE, + .max_rx_pkt_len = ETHER_MAX_LEN, + .split_hdr_size = 0, + .header_split = 0, /**< Header Split disabled */ + .hw_ip_checksum = 0, /**< IP checksum offload disabled */ + .hw_vlan_filter = 0, /**< VLAN filtering disabled */ + .jumbo_frame = 0, /**< Jumbo Frame Support disabled */ + .hw_strip_crc = 0, /**< CRC stripped by hardware */ + }, + .txmode = { + .mq_mode = ETH_MQ_TX_NONE, + }, +}; + +struct rte_bbdev_op_turbo_enc def_op_enc = { + /* These values are arbitrarily put, and does not map to the real + * values for the data received from ethdev ports + */ + .rv_index = 0, + .code_block_mode = 1, + .cb_params = { + .k = K, + }, + .op_flags = RTE_BBDEV_TURBO_CRC_24A_ATTACH +}; + +struct rte_bbdev_op_turbo_dec def_op_dec = { + /* These values are arbitrarily put, and does not map to the real + * values for the data received from ethdev ports + */ + .code_block_mode = 1, + .cb_params = { + .k = K, + }, + .rv_index = 0, + .iter_max = 8, + .iter_min = 4, + .ext_scale = 15, + .num_maps = 0, + .op_flags = RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN +}; + +struct app_config_params { + /* Placeholders for app params */ + uint16_t port_id; + uint16_t bbdev_id; + uint64_t enc_core_mask; + uint64_t dec_core_mask; + + /* Values filled during init time */ + uint16_t enc_queue_ids[RTE_MAX_LCORE]; + uint16_t dec_queue_ids[RTE_MAX_LCORE]; + uint16_t num_enc_cores; + uint16_t num_dec_cores; +}; + +struct lcore_statistics { + unsigned int enqueued; + unsigned int dequeued; + unsigned int rx_lost_packets; + unsigned int enc_to_dec_lost_packets; + unsigned int tx_lost_packets; +} __rte_cache_aligned; + +/** each lcore configuration */ +struct lcore_conf { + uint64_t core_type; + + unsigned int port_id; + unsigned int rx_queue_id; + unsigned int tx_queue_id; + + unsigned int bbdev_id; + unsigned int enc_queue_id; + unsigned int dec_queue_id; + + uint8_t llr_temp_buf[NCB]; + + struct rte_mempool *bbdev_dec_op_pool; + struct rte_mempool *bbdev_enc_op_pool; + struct rte_mempool *enc_out_pool; + struct rte_ring *enc_to_dec_ring; + + struct lcore_statistics *lcore_stats; +} __rte_cache_aligned; + +struct stats_lcore_params { + struct lcore_conf *lconf; + struct app_config_params *app_params; +}; + + +static const struct app_config_params def_app_config = { + .port_id = 0, + .bbdev_id = 0, + .enc_core_mask = 0x2, + .dec_core_mask = 0x4, + .num_enc_cores = 1, + .num_dec_cores = 1, +}; + +static rte_atomic16_t global_exit_flag; + +/* display usage */ +static inline void +usage(const char *prgname) +{ + printf("%s [EAL options] " + " --\n" + " --enc_cores - number of encoding cores (default = 0x2)\n" + " --dec_cores - number of decoding cores (default = 0x4)\n" + " --port_id - Ethernet port ID (default = 0)\n" + " --bbdev_id - BBDev ID (default = 0)\n" + "\n", prgname); +} + +/* parse core mask */ +static inline +uint16_t bbdev_parse_mask(const char *mask) +{ + char *end = NULL; + unsigned long pm; + + /* parse hexadecimal string */ + pm = strtoul(mask, &end, 16); + if ((mask[0] == '\0') || (end == NULL) || (*end != '\0')) + return 0; + + return pm; +} + +/* parse core mask */ +static inline +uint16_t bbdev_parse_number(const char *mask) +{ + char *end = NULL; + unsigned long pm; + + /* parse hexadecimal string */ + pm = strtoul(mask, &end, 10); + if ((mask[0] == '\0') || (end == NULL) || (*end != '\0')) + return 0; + + return pm; +} + +static int +bbdev_parse_args(int argc, char **argv, + struct app_config_params *app_params) +{ + int optind = 0; + int opt; + int opt_indx = 0; + char *prgname = argv[0]; + + static struct option lgopts[] = { + { "enc_core_mask", required_argument, 0, 'e' }, + { "dec_core_mask", required_argument, 0, 'd' }, + { "port_id", required_argument, 0, 'p' }, + { "bbdev_id", required_argument, 0, 'b' }, + { NULL, 0, 0, 0 } + }; + + BBDEV_ASSERT(argc != 0); + BBDEV_ASSERT(argv != NULL); + BBDEV_ASSERT(app_params != NULL); + + while ((opt = getopt_long(argc, argv, "e:d:p:b:", lgopts, &opt_indx)) != + EOF) { + switch (opt) { + case 'e': + app_params->enc_core_mask = + bbdev_parse_mask(optarg); + if (app_params->enc_core_mask == 0) { + usage(prgname); + return -1; + } + app_params->num_enc_cores = + __builtin_popcount(app_params->enc_core_mask); + break; + + case 'd': + app_params->dec_core_mask = + bbdev_parse_mask(optarg); + if (app_params->dec_core_mask == 0) { + usage(prgname); + return -1; + } + app_params->num_dec_cores = + __builtin_popcount(app_params->dec_core_mask); + break; + + case 'p': + app_params->port_id = bbdev_parse_number(optarg); + break; + + case 'b': + app_params->bbdev_id = bbdev_parse_number(optarg); + break; + + default: + usage(prgname); + return -1; + } + } + optind = 0; + return optind; +} + +static void +signal_handler(int signum) +{ + printf("\nSignal %d received\n", signum); + rte_atomic16_set(&global_exit_flag, 1); +} + +static void +print_mac(unsigned int portid, struct ether_addr *bbdev_ports_eth_address) +{ + printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", + (unsigned int) portid, + bbdev_ports_eth_address->addr_bytes[0], + bbdev_ports_eth_address->addr_bytes[1], + bbdev_ports_eth_address->addr_bytes[2], + bbdev_ports_eth_address->addr_bytes[3], + bbdev_ports_eth_address->addr_bytes[4], + bbdev_ports_eth_address->addr_bytes[5]); +} + +static inline void +pktmbuf_free_bulk(struct rte_mbuf **mbufs, unsigned int nb_to_free) +{ + unsigned int i; + for (i = 0; i < nb_to_free; ++i) + rte_pktmbuf_free(mbufs[i]); +} + +static inline void +pktmbuf_userdata_free_bulk(struct rte_mbuf **mbufs, unsigned int nb_to_free) +{ + unsigned int i; + for (i = 0; i < nb_to_free; ++i) { + struct rte_mbuf *rx_pkt = mbufs[i]->userdata; + rte_pktmbuf_free(rx_pkt); + rte_pktmbuf_free(mbufs[i]); + } +} + +/* Check the link status of all ports in up to 9s, and print them finally */ +static int +check_port_link_status(uint16_t port_id) +{ +#define CHECK_INTERVAL 100 /* 100ms */ +#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ + uint8_t count; + struct rte_eth_link link; + + printf("\nChecking link status."); + fflush(stdout); + + for (count = 0; count <= MAX_CHECK_TIME && + !rte_atomic16_read(&global_exit_flag); count++) { + memset(&link, 0, sizeof(link)); + rte_eth_link_get_nowait(port_id, &link); + + if (link.link_status) { + const char *dp = (link.link_duplex == + ETH_LINK_FULL_DUPLEX) ? + "full-duplex" : "half-duplex"; + printf("\nPort %u Link Up - speed %u Mbps - %s\n", + port_id, link.link_speed, dp); + return 0; + } + printf("."); + fflush(stdout); + rte_delay_ms(CHECK_INTERVAL); + } + + printf("\nPort %d Link Down\n", port_id); + return 0; +} + +static inline void +add_ether_hdr(struct rte_mbuf *pkt_src, struct rte_mbuf *pkt_dst) +{ + struct ether_hdr *eth_from; + struct ether_hdr *eth_to; + + eth_from = rte_pktmbuf_mtod(pkt_src, struct ether_hdr *); + eth_to = rte_pktmbuf_mtod(pkt_dst, struct ether_hdr *); + + /* copy header */ + rte_memcpy(eth_to, eth_from, sizeof(struct ether_hdr)); +} + +static inline void +add_awgn(struct rte_mbuf **mbufs, uint16_t num_pkts) +{ + RTE_SET_USED(mbufs); + RTE_SET_USED(num_pkts); +} + +/* Encoder output to Decoder input adapter. The Decoder accepts only soft input + * so each bit of the encoder output must be translated into one byte of LLR. If + * Sub-block Deinterleaver is bypassed, which is the case, the padding bytes + * must additionally be insterted at the end of each sub-block. + */ +static inline void +transform_enc_out_dec_in(struct rte_mbuf **mbufs, uint8_t *temp_buf, + uint16_t num_pkts, uint16_t k) +{ + uint16_t i, l, j; + uint16_t start_bit_idx; + uint16_t out_idx; + uint16_t d = k + 4; + uint16_t kpi = RTE_ALIGN_CEIL(d, 32); + uint16_t nd = kpi - d; + uint16_t ncb = 3 * kpi; + + for (i = 0; i < num_pkts; ++i) { + uint16_t pkt_data_len = rte_pktmbuf_data_len(mbufs[i]) - + sizeof(struct ether_hdr); + + /* Resize the packet if needed */ + if (pkt_data_len < ncb) { + char *data = rte_pktmbuf_append(mbufs[i], + ncb - pkt_data_len); + if (data == NULL) + printf( + "Not enough space in decoder input packet"); + } + + /* Translate each bit into 1 LLR byte. */ + start_bit_idx = 0; + out_idx = 0; + for (j = 0; j < 3; ++j) { + for (l = start_bit_idx; l < start_bit_idx + d; ++l) { + uint8_t *data = rte_pktmbuf_mtod_offset( + mbufs[i], uint8_t *, + sizeof(struct ether_hdr) + (l >> 3)); + if (*data & (0x80 >> (l & 7))) + temp_buf[out_idx] = LLR_1_BIT; + else + temp_buf[out_idx] = LLR_0_BIT; + ++out_idx; + } + /* Padding bytes should be at the end of the sub-block. + */ + memset(&temp_buf[out_idx], 0, nd); + out_idx += nd; + start_bit_idx += d; + } + + rte_memcpy(rte_pktmbuf_mtod_offset(mbufs[i], uint8_t *, + sizeof(struct ether_hdr)), temp_buf, ncb); + } +} + +static inline void +verify_data(struct rte_mbuf **mbufs, uint16_t num_pkts) +{ + uint16_t i; + for (i = 0; i < num_pkts; ++i) { + struct rte_mbuf *out = mbufs[i]; + struct rte_mbuf *in = out->userdata; + + if (memcmp(rte_pktmbuf_mtod_offset(in, uint8_t *, + sizeof(struct ether_hdr)), + rte_pktmbuf_mtod_offset(out, uint8_t *, + sizeof(struct ether_hdr)), + K / 8 - CRC_24B_LEN)) + printf("Input and output buffers are not equal!\n"); + } +} + +static int +initialize_ports(struct app_config_params *app_params, + struct rte_mempool *ethdev_mbuf_mempool) +{ + int ret; + uint16_t port_id = app_params->port_id; + uint16_t q; + /* ethernet addresses of ports */ + struct ether_addr bbdev_port_eth_addr; + + /* initialize ports */ + printf("\nInitializing port %u...\n", app_params->port_id); + ret = rte_eth_dev_configure(port_id, app_params->num_enc_cores, + app_params->num_dec_cores, &port_conf); + + if (ret < 0) { + printf("Cannot configure device: err=%d, port=%u\n", + ret, port_id); + return -1; + } + + /* initialize RX queues for encoder */ + for (q = 0; q < app_params->num_enc_cores; q++) { + ret = rte_eth_rx_queue_setup(port_id, q, + RTE_TEST_RX_DESC_DEFAULT, + rte_eth_dev_socket_id(port_id), + NULL, ethdev_mbuf_mempool); + if (ret < 0) { + printf("rte_eth_rx_queue_setup: err=%d, queue=%u\n", + ret, q); + return -1; + } + } + /* initialize TX queues for decoder */ + for (q = 0; q < app_params->num_dec_cores; q++) { + ret = rte_eth_tx_queue_setup(port_id, q, + RTE_TEST_TX_DESC_DEFAULT, + rte_eth_dev_socket_id(port_id), NULL); + if (ret < 0) { + printf("rte_eth_tx_queue_setup: err=%d, queue=%u\n", + ret, q); + return -1; + } + } + + rte_eth_promiscuous_enable(port_id); + + rte_eth_macaddr_get(port_id, &bbdev_port_eth_addr); + print_mac(port_id, &bbdev_port_eth_addr); + + return 0; +} + +static void +lcore_conf_init(struct app_config_params *app_params, + struct lcore_conf *lcore_conf, + struct rte_mempool **bbdev_op_pools, + struct rte_mempool *bbdev_mbuf_mempool, + struct rte_ring *enc_to_dec_ring, + struct lcore_statistics *lcore_stats) +{ + unsigned int lcore_id; + struct lcore_conf *lconf; + uint16_t rx_queue_id = 0; + uint16_t tx_queue_id = 0; + uint16_t enc_q_id = 0; + uint16_t dec_q_id = 0; + + /* Configure lcores */ + for (lcore_id = 0; lcore_id < 8 * sizeof(uint64_t); ++lcore_id) { + lconf = &lcore_conf[lcore_id]; + lconf->core_type = 0; + + if ((1ULL << lcore_id) & app_params->enc_core_mask) { + lconf->core_type |= (1 << RTE_BBDEV_OP_TURBO_ENC); + lconf->rx_queue_id = rx_queue_id++; + lconf->enc_queue_id = + app_params->enc_queue_ids[enc_q_id++]; + } + + if ((1ULL << lcore_id) & app_params->dec_core_mask) { + lconf->core_type |= (1 << RTE_BBDEV_OP_TURBO_DEC); + lconf->tx_queue_id = tx_queue_id++; + lconf->dec_queue_id = + app_params->dec_queue_ids[dec_q_id++]; + } + + lconf->bbdev_enc_op_pool = + bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC]; + lconf->bbdev_dec_op_pool = + bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC]; + lconf->bbdev_id = app_params->bbdev_id; + lconf->port_id = app_params->port_id; + lconf->enc_out_pool = bbdev_mbuf_mempool; + lconf->enc_to_dec_ring = enc_to_dec_ring; + lconf->lcore_stats = &lcore_stats[lcore_id]; + } +} + +static void +print_lcore_stats(struct lcore_statistics *lstats, unsigned int lcore_id) +{ + static const char *stats_border = "_______"; + + printf("\nLcore %d: %s enqueued count:\t\t%u\n", + lcore_id, stats_border, lstats->enqueued); + printf("Lcore %d: %s dequeued count:\t\t%u\n", + lcore_id, stats_border, lstats->dequeued); + printf("Lcore %d: %s RX lost packets count:\t\t%u\n", + lcore_id, stats_border, lstats->rx_lost_packets); + printf("Lcore %d: %s encoder-to-decoder lost count:\t%u\n", + lcore_id, stats_border, + lstats->enc_to_dec_lost_packets); + printf("Lcore %d: %s TX lost packets count:\t\t%u\n", + lcore_id, stats_border, lstats->tx_lost_packets); +} + +static void +print_stats(struct stats_lcore_params *stats_lcore) +{ + unsigned int l_id; + unsigned int bbdev_id = stats_lcore->app_params->bbdev_id; + unsigned int port_id = stats_lcore->app_params->port_id; + int len, ret, i; + + struct rte_eth_xstat *xstats; + struct rte_eth_xstat_name *xstats_names; + struct rte_bbdev_stats bbstats; + static const char *stats_border = "_______"; + + const char clr[] = { 27, '[', '2', 'J', '\0' }; + const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' }; + + /* Clear screen and move to top left */ + printf("%s%s", clr, topLeft); + + printf("PORT STATISTICS:\n================\n"); + len = rte_eth_xstats_get(port_id, NULL, 0); + if (len < 0) + rte_exit(EXIT_FAILURE, + "rte_eth_xstats_get(%u) failed: %d", port_id, + len); + + xstats = calloc(len, sizeof(*xstats)); + if (xstats == NULL) + rte_exit(EXIT_FAILURE, + "Failed to calloc memory for xstats"); + + ret = rte_eth_xstats_get(port_id, xstats, len); + if (ret < 0 || ret > len) { + free(xstats); + rte_exit(EXIT_FAILURE, + "rte_eth_xstats_get(%u) len%i failed: %d", + port_id, len, ret); + } + + xstats_names = calloc(len, sizeof(*xstats_names)); + if (xstats_names == NULL) { + free(xstats); + rte_exit(EXIT_FAILURE, + "Failed to calloc memory for xstats_names"); + } + + ret = rte_eth_xstats_get_names(port_id, xstats_names, len); + if (ret < 0 || ret > len) { + free(xstats); + free(xstats_names); + rte_exit(EXIT_FAILURE, + "rte_eth_xstats_get_names(%u) len%i failed: %d", + port_id, len, ret); + } + + for (i = 0; i < len; i++) { + if (xstats[i].value > 0) + printf("Port %u: %s %s:\t\t%"PRIu64"\n", + port_id, stats_border, + xstats_names[i].name, + xstats[i].value); + } + + ret = rte_bbdev_stats_get(bbdev_id, &bbstats); + if (ret < 0) { + free(xstats); + free(xstats_names); + rte_exit(EXIT_FAILURE, + "ERROR(%d): Failure to get BBDEV %u statistics\n", + ret, bbdev_id); + } + + printf("\nBBDEV STATISTICS:\n=================\n"); + printf("BBDEV %u: %s enqueue count:\t\t%"PRIu64"\n", + bbdev_id, stats_border, + bbstats.enqueued_count); + printf("BBDEV %u: %s dequeue count:\t\t%"PRIu64"\n", + bbdev_id, stats_border, + bbstats.dequeued_count); + printf("BBDEV %u: %s enqueue error count:\t\t%"PRIu64"\n", + bbdev_id, stats_border, + bbstats.enqueue_err_count); + printf("BBDEV %u: %s dequeue error count:\t\t%"PRIu64"\n\n", + bbdev_id, stats_border, + bbstats.dequeue_err_count); + + printf("LCORE STATISTICS:\n=================\n"); + for (l_id = 0; l_id < RTE_MAX_LCORE; ++l_id) { + if (stats_lcore->lconf[l_id].core_type == 0) + continue; + print_lcore_stats(stats_lcore->lconf[l_id].lcore_stats, l_id); + } + + free(xstats); + free(xstats_names); +} + +static int +stats_loop(void *arg) +{ + struct stats_lcore_params *stats_lcore = arg; + + while (!rte_atomic16_read(&global_exit_flag)) { + print_stats(stats_lcore); + rte_delay_ms(500); + } + + return 0; +} + +static inline void +run_encoding(struct lcore_conf *lcore_conf) +{ + uint16_t i; + uint16_t port_id, rx_queue_id; + uint16_t bbdev_id, enc_queue_id; + uint16_t nb_rx, nb_enq, nb_deq, nb_sent; + struct rte_mbuf *rx_pkts_burst[MAX_PKT_BURST]; + struct rte_mbuf *enc_out_pkts[MAX_PKT_BURST]; + struct rte_bbdev_enc_op *bbdev_ops_burst[MAX_PKT_BURST]; + struct lcore_statistics *lcore_stats; + struct rte_mempool *bbdev_op_pool, *enc_out_pool; + struct rte_ring *enc_to_dec_ring; + const int in_data_len = (def_op_enc.cb_params.k / 8) - CRC_24B_LEN; + + lcore_stats = lcore_conf->lcore_stats; + port_id = lcore_conf->port_id; + rx_queue_id = lcore_conf->rx_queue_id; + bbdev_id = lcore_conf->bbdev_id; + enc_queue_id = lcore_conf->enc_queue_id; + bbdev_op_pool = lcore_conf->bbdev_enc_op_pool; + enc_out_pool = lcore_conf->enc_out_pool; + enc_to_dec_ring = lcore_conf->enc_to_dec_ring; + + /* Read packet from RX queues*/ + nb_rx = rte_eth_rx_burst(port_id, rx_queue_id, rx_pkts_burst, + MAX_PKT_BURST); + if (!nb_rx) + return; + + if (unlikely(rte_mempool_get_bulk(enc_out_pool, (void **)enc_out_pkts, + nb_rx) != 0)) { + pktmbuf_free_bulk(rx_pkts_burst, nb_rx); + lcore_stats->rx_lost_packets += nb_rx; + return; + } + + if (unlikely(rte_bbdev_enc_op_alloc_bulk(bbdev_op_pool, bbdev_ops_burst, + nb_rx) != 0)) { + pktmbuf_free_bulk(enc_out_pkts, nb_rx); + pktmbuf_free_bulk(rx_pkts_burst, nb_rx); + lcore_stats->rx_lost_packets += nb_rx; + return; + } + + for (i = 0; i < nb_rx; i++) { + char *data; + const uint16_t pkt_data_len = + rte_pktmbuf_data_len(rx_pkts_burst[i]) - + sizeof(struct ether_hdr); + /* save input mbuf pointer for later comparison */ + enc_out_pkts[i]->userdata = rx_pkts_burst[i]; + + /* copy ethernet header */ + rte_pktmbuf_reset(enc_out_pkts[i]); + data = rte_pktmbuf_append(enc_out_pkts[i], + sizeof(struct ether_hdr)); + if (data == NULL) { + printf( + "Not enough space for ethernet header in encoder output mbuf\n"); + continue; + } + add_ether_hdr(rx_pkts_burst[i], enc_out_pkts[i]); + + /* set op */ + bbdev_ops_burst[i]->turbo_enc = def_op_enc; + + bbdev_ops_burst[i]->turbo_enc.input.data = + rx_pkts_burst[i]; + bbdev_ops_burst[i]->turbo_enc.input.offset = + sizeof(struct ether_hdr); + /* Encoder will attach the CRC24B, adjust the length */ + bbdev_ops_burst[i]->turbo_enc.input.length = in_data_len; + + if (in_data_len < pkt_data_len) + rte_pktmbuf_trim(rx_pkts_burst[i], pkt_data_len - + in_data_len); + else if (in_data_len > pkt_data_len) { + data = rte_pktmbuf_append(rx_pkts_burst[i], + in_data_len - pkt_data_len); + if (data == NULL) + printf( + "Not enough storage in mbuf to perform the encoding\n"); + } + + bbdev_ops_burst[i]->turbo_enc.output.data = + enc_out_pkts[i]; + bbdev_ops_burst[i]->turbo_enc.output.offset = + sizeof(struct ether_hdr); + } + + /* Enqueue packets on BBDevice */ + nb_enq = rte_bbdev_enqueue_enc_ops(bbdev_id, enc_queue_id, + bbdev_ops_burst, nb_rx); + if (unlikely(nb_enq < nb_rx)) { + pktmbuf_userdata_free_bulk(&enc_out_pkts[nb_enq], + nb_rx - nb_enq); + rte_bbdev_enc_op_free_bulk(&bbdev_ops_burst[nb_enq], + nb_rx - nb_enq); + lcore_stats->rx_lost_packets += nb_rx - nb_enq; + + if (!nb_enq) + return; + } + + lcore_stats->enqueued += nb_enq; + + /* Dequeue packets from bbdev device*/ + nb_deq = 0; + do { + nb_deq += rte_bbdev_dequeue_enc_ops(bbdev_id, enc_queue_id, + &bbdev_ops_burst[nb_deq], nb_enq - nb_deq); + } while (unlikely(nb_deq < nb_enq)); + + lcore_stats->dequeued += nb_deq; + + /* Generate and add AWGN */ + add_awgn(enc_out_pkts, nb_deq); + + rte_bbdev_enc_op_free_bulk(bbdev_ops_burst, nb_deq); + + /* Enqueue packets to encoder-to-decoder ring */ + nb_sent = rte_ring_enqueue_burst(enc_to_dec_ring, (void **)enc_out_pkts, + nb_deq, NULL); + if (unlikely(nb_sent < nb_deq)) { + pktmbuf_userdata_free_bulk(&enc_out_pkts[nb_sent], + nb_deq - nb_sent); + lcore_stats->enc_to_dec_lost_packets += nb_deq - nb_sent; + } +} + +static void +run_decoding(struct lcore_conf *lcore_conf) +{ + uint16_t i; + uint16_t port_id, tx_queue_id; + uint16_t bbdev_id, bbdev_queue_id; + uint16_t nb_recv, nb_enq, nb_deq, nb_tx; + uint8_t *llr_temp_buf; + struct rte_mbuf *recv_pkts_burst[MAX_PKT_BURST]; + struct rte_bbdev_dec_op *bbdev_ops_burst[MAX_PKT_BURST]; + struct lcore_statistics *lcore_stats; + struct rte_mempool *bbdev_op_pool; + struct rte_ring *enc_to_dec_ring; + + lcore_stats = lcore_conf->lcore_stats; + port_id = lcore_conf->port_id; + tx_queue_id = lcore_conf->tx_queue_id; + bbdev_id = lcore_conf->bbdev_id; + bbdev_queue_id = lcore_conf->dec_queue_id; + bbdev_op_pool = lcore_conf->bbdev_dec_op_pool; + enc_to_dec_ring = lcore_conf->enc_to_dec_ring; + llr_temp_buf = lcore_conf->llr_temp_buf; + + /* Dequeue packets from the ring */ + nb_recv = rte_ring_dequeue_burst(enc_to_dec_ring, + (void **)recv_pkts_burst, MAX_PKT_BURST, NULL); + if (!nb_recv) + return; + + if (unlikely(rte_bbdev_dec_op_alloc_bulk(bbdev_op_pool, bbdev_ops_burst, + nb_recv) != 0)) { + pktmbuf_userdata_free_bulk(recv_pkts_burst, nb_recv); + lcore_stats->rx_lost_packets += nb_recv; + return; + } + + transform_enc_out_dec_in(recv_pkts_burst, llr_temp_buf, nb_recv, + def_op_dec.cb_params.k); + + for (i = 0; i < nb_recv; i++) { + /* set op */ + bbdev_ops_burst[i]->turbo_dec = def_op_dec; + + bbdev_ops_burst[i]->turbo_dec.input.data = recv_pkts_burst[i]; + bbdev_ops_burst[i]->turbo_dec.input.offset = + sizeof(struct ether_hdr); + bbdev_ops_burst[i]->turbo_dec.input.length = + rte_pktmbuf_data_len(recv_pkts_burst[i]) + - sizeof(struct ether_hdr); + + bbdev_ops_burst[i]->turbo_dec.hard_output.data = + recv_pkts_burst[i]; + bbdev_ops_burst[i]->turbo_dec.hard_output.offset = + sizeof(struct ether_hdr); + } + + /* Enqueue packets on BBDevice */ + nb_enq = rte_bbdev_enqueue_dec_ops(bbdev_id, bbdev_queue_id, + bbdev_ops_burst, nb_recv); + if (unlikely(nb_enq < nb_recv)) { + pktmbuf_userdata_free_bulk(&recv_pkts_burst[nb_enq], + nb_recv - nb_enq); + rte_bbdev_dec_op_free_bulk(&bbdev_ops_burst[nb_enq], + nb_recv - nb_enq); + lcore_stats->rx_lost_packets += nb_recv - nb_enq; + + if (!nb_enq) + return; + } + + lcore_stats->enqueued += nb_enq; + + /* Dequeue packets from BBDevice */ + nb_deq = 0; + do { + nb_deq += rte_bbdev_dequeue_dec_ops(bbdev_id, bbdev_queue_id, + &bbdev_ops_burst[nb_deq], nb_enq - nb_deq); + } while (unlikely(nb_deq < nb_enq)); + + lcore_stats->dequeued += nb_deq; + + rte_bbdev_dec_op_free_bulk(bbdev_ops_burst, nb_deq); + + verify_data(recv_pkts_burst, nb_deq); + + /* Free the RX mbufs after verification */ + for (i = 0; i < nb_deq; ++i) + rte_pktmbuf_free(recv_pkts_burst[i]->userdata); + + /* Transmit the packets */ + nb_tx = rte_eth_tx_burst(port_id, tx_queue_id, recv_pkts_burst, nb_deq); + if (unlikely(nb_tx < nb_deq)) { + pktmbuf_userdata_free_bulk(&recv_pkts_burst[nb_tx], + nb_deq - nb_tx); + lcore_stats->tx_lost_packets += nb_deq - nb_tx; + } +} + +static int +processing_loop(void *arg) +{ + struct lcore_conf *lcore_conf = arg; + const bool run_encoder = (lcore_conf->core_type & + (1 << RTE_BBDEV_OP_TURBO_ENC)); + const bool run_decoder = (lcore_conf->core_type & + (1 << RTE_BBDEV_OP_TURBO_DEC)); + + while (!rte_atomic16_read(&global_exit_flag)) { + if (run_encoder) + run_encoding(lcore_conf); + if (run_decoder) + run_decoding(lcore_conf); + } + + return 0; +} + +static int +prepare_bbdev_device(unsigned int dev_id, struct rte_bbdev_info *info, + struct app_config_params *app_params) +{ + int ret; + unsigned int q_id, dec_q_id, enc_q_id; + struct rte_bbdev_queue_conf qconf = {0}; + uint16_t dec_qs_nb = app_params->num_dec_cores; + uint16_t enc_qs_nb = app_params->num_enc_cores; + uint16_t tot_qs = dec_qs_nb + enc_qs_nb; + + ret = rte_bbdev_setup_queues(dev_id, tot_qs, info->socket_id); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "ERROR(%d): BBDEV %u not configured properly\n", + ret, dev_id); + + /* setup device DEC queues */ + qconf.socket = info->socket_id; + qconf.queue_size = info->drv.queue_size_lim; + qconf.op_type = RTE_BBDEV_OP_TURBO_DEC; + + for (q_id = 0, dec_q_id = 0; q_id < dec_qs_nb; q_id++) { + ret = rte_bbdev_queue_configure(dev_id, q_id, &qconf); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "ERROR(%d): BBDEV %u DEC queue %u not configured properly\n", + ret, dev_id, q_id); + app_params->dec_queue_ids[dec_q_id++] = q_id; + } + + /* setup device ENC queues */ + qconf.op_type = RTE_BBDEV_OP_TURBO_ENC; + + for (q_id = dec_qs_nb, enc_q_id = 0; q_id < tot_qs; q_id++) { + ret = rte_bbdev_queue_configure(dev_id, q_id, &qconf); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "ERROR(%d): BBDEV %u ENC queue %u not configured properly\n", + ret, dev_id, q_id); + app_params->enc_queue_ids[enc_q_id++] = q_id; + } + + ret = rte_bbdev_start(dev_id); + + if (ret != 0) + rte_exit(EXIT_FAILURE, "ERROR(%d): BBDEV %u not started\n", + ret, dev_id); + + printf("BBdev %u started\n", dev_id); + + return 0; +} + +static inline bool +check_matching_capabilities(uint64_t mask, uint64_t required_mask) +{ + return (mask & required_mask) == required_mask; +} + +static void +enable_bbdev(struct app_config_params *app_params) +{ + struct rte_bbdev_info dev_info; + const struct rte_bbdev_op_cap *op_cap; + uint16_t bbdev_id = app_params->bbdev_id; + bool encoder_capable = false; + bool decoder_capable = false; + + rte_bbdev_info_get(bbdev_id, &dev_info); + op_cap = dev_info.drv.capabilities; + + while (op_cap->type != RTE_BBDEV_OP_NONE) { + if (op_cap->type == RTE_BBDEV_OP_TURBO_ENC) { + if (check_matching_capabilities( + op_cap->cap.turbo_enc.capability_flags, + def_op_enc.op_flags)) + encoder_capable = true; + } + + if (op_cap->type == RTE_BBDEV_OP_TURBO_DEC) { + if (check_matching_capabilities( + op_cap->cap.turbo_dec.capability_flags, + def_op_dec.op_flags)) + decoder_capable = true; + } + + op_cap++; + } + + if (encoder_capable == false) + rte_exit(EXIT_FAILURE, + "The specified BBDev %u doesn't have required encoder capabilities!\n", + bbdev_id); + if (decoder_capable == false) + rte_exit(EXIT_FAILURE, + "The specified BBDev %u doesn't have required decoder capabilities!\n", + bbdev_id); + + prepare_bbdev_device(bbdev_id, &dev_info, app_params); +} + +int +main(int argc, char **argv) +{ + int ret; + unsigned int nb_bbdevs, nb_ports, flags, lcore_id; + void *sigret; + struct app_config_params app_params = def_app_config; + struct rte_mempool *ethdev_mbuf_mempool, *bbdev_mbuf_mempool; + struct rte_mempool *bbdev_op_pools[RTE_BBDEV_OP_TYPE_COUNT]; + struct lcore_conf lcore_conf[RTE_MAX_LCORE] = { {0} }; + struct lcore_statistics lcore_stats[RTE_MAX_LCORE] = { {0} }; + struct stats_lcore_params stats_lcore; + struct rte_ring *enc_to_dec_ring; + bool stats_thread_started = false; + unsigned int master_lcore_id = rte_get_master_lcore(); + + rte_atomic16_init(&global_exit_flag); + + sigret = signal(SIGTERM, signal_handler); + if (sigret == SIG_ERR) + rte_exit(EXIT_FAILURE, "signal(%d, ...) failed", SIGTERM); + + sigret = signal(SIGINT, signal_handler); + if (sigret == SIG_ERR) + rte_exit(EXIT_FAILURE, "signal(%d, ...) failed", SIGINT); + + ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); + + argc -= ret; + argv += ret; + + /* parse application arguments (after the EAL ones) */ + ret = bbdev_parse_args(argc, argv, &app_params); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Invalid BBDEV arguments\n"); + + /*create bbdev op pools*/ + bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC] = + rte_bbdev_op_pool_create("bbdev_op_pool_dec", + RTE_BBDEV_OP_TURBO_DEC, NB_MBUF, 128, rte_socket_id()); + bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC] = + rte_bbdev_op_pool_create("bbdev_op_pool_enc", + RTE_BBDEV_OP_TURBO_ENC, NB_MBUF, 128, rte_socket_id()); + + if ((bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC] == NULL) || + (bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC] == NULL)) + rte_exit(EXIT_FAILURE, "Cannot create bbdev op pools\n"); + + /* Create encoder to decoder ring */ + flags = (app_params.num_enc_cores == 1) ? RING_F_SP_ENQ : 0; + if (app_params.num_dec_cores == 1) + flags |= RING_F_SC_DEQ; + + enc_to_dec_ring = rte_ring_create("enc_to_dec_ring", + rte_align32pow2(NB_MBUF), rte_socket_id(), flags); + + /* Get the number of available bbdev devices */ + nb_bbdevs = rte_bbdev_count(); + if (nb_bbdevs <= app_params.bbdev_id) + rte_exit(EXIT_FAILURE, + "%u BBDevs detected, cannot use BBDev with ID %u!\n", + nb_bbdevs, app_params.bbdev_id); + printf("Number of bbdevs detected: %d\n", nb_bbdevs); + + /* Get the number of available ethdev devices */ + nb_ports = rte_eth_dev_count(); + if (nb_ports <= app_params.port_id) + rte_exit(EXIT_FAILURE, + "%u ports detected, cannot use port with ID %u!\n", + nb_ports, app_params.port_id); + + /* create the mbuf mempool for ethdev pkts */ + ethdev_mbuf_mempool = rte_pktmbuf_pool_create("ethdev_mbuf_pool", + NB_MBUF, MEMPOOL_CACHE_SIZE, 0, + RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); + if (ethdev_mbuf_mempool == NULL) + rte_exit(EXIT_FAILURE, "Cannot create ethdev mbuf mempool\n"); + + /* create the mbuf mempool for encoder output */ + bbdev_mbuf_mempool = rte_pktmbuf_pool_create("bbdev_mbuf_pool", + NB_MBUF, MEMPOOL_CACHE_SIZE, 0, + RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); + if (bbdev_mbuf_mempool == NULL) + rte_exit(EXIT_FAILURE, "Cannot create ethdev mbuf mempool\n"); + + /* initialize ports */ + ret = initialize_ports(&app_params, ethdev_mbuf_mempool); + + /* Check if all requested lcores are available */ + for (lcore_id = 0; lcore_id < 8 * sizeof(uint64_t); ++lcore_id) + if (((1ULL << lcore_id) & app_params.enc_core_mask) || + ((1ULL << lcore_id) & app_params.dec_core_mask)) + if (!rte_lcore_is_enabled(lcore_id)) + rte_exit(EXIT_FAILURE, + "Requested lcore_id %u is not enabled!\n", + lcore_id); + + /* Start ethernet port */ + ret = rte_eth_dev_start(app_params.port_id); + if (ret < 0) + rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", + ret, app_params.port_id); + + ret = check_port_link_status(app_params.port_id); + if (ret < 0) + exit(EXIT_FAILURE); + + /* start BBDevice and save BBDev queue IDs */ + enable_bbdev(&app_params); + + /* Initialize the port/queue configuration of each logical core */ + lcore_conf_init(&app_params, lcore_conf, bbdev_op_pools, + bbdev_mbuf_mempool, enc_to_dec_ring, lcore_stats); + + stats_lcore.app_params = &app_params; + stats_lcore.lconf = lcore_conf; + + RTE_LCORE_FOREACH_SLAVE(lcore_id) { + if (lcore_conf[lcore_id].core_type != 0) + /* launch per-lcore processing loop on slave lcores */ + rte_eal_remote_launch(processing_loop, + &lcore_conf[lcore_id], lcore_id); + else if (!stats_thread_started) { + /* launch statistics printing loop */ + rte_eal_remote_launch(stats_loop, &stats_lcore, + lcore_id); + stats_thread_started = true; + } + } + + if (!stats_thread_started && + lcore_conf[master_lcore_id].core_type != 0) + rte_exit(EXIT_FAILURE, + "Not enough lcores to run the statistics printing loop!"); + else if (lcore_conf[master_lcore_id].core_type != 0) + processing_loop(&lcore_conf[master_lcore_id]); + else if (!stats_thread_started) + stats_loop(&stats_lcore); + + RTE_LCORE_FOREACH_SLAVE(lcore_id) { + ret |= rte_eal_wait_lcore(lcore_id); + } + + return ret; +} |