diff options
Diffstat (limited to 'src/spdk/dpdk/examples/ioat')
| -rw-r--r-- | src/spdk/dpdk/examples/ioat/Makefile | 57 | ||||
| -rw-r--r-- | src/spdk/dpdk/examples/ioat/ioatfwd.c | 1016 | ||||
| -rw-r--r-- | src/spdk/dpdk/examples/ioat/meson.build | 16 |
3 files changed, 1089 insertions, 0 deletions
diff --git a/src/spdk/dpdk/examples/ioat/Makefile b/src/spdk/dpdk/examples/ioat/Makefile new file mode 100644 index 000000000..9b277eb7b --- /dev/null +++ b/src/spdk/dpdk/examples/ioat/Makefile @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2019 Intel Corporation + +# binary name +APP = ioatfwd + +# all source are stored in SRCS-y +SRCS-y := ioatfwd.c + +# Build using pkg-config variables if possible +ifeq ($(shell pkg-config --exists libdpdk && echo 0),0) + +all: shared +.PHONY: shared static +shared: build/$(APP)-shared + ln -sf $(APP)-shared build/$(APP) +static: build/$(APP)-static + ln -sf $(APP)-static build/$(APP) + +PKGCONF ?= pkg-config + +PC_FILE := $(shell $(PKGCONF) --path libdpdk 2>/dev/null) +CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk) +LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk) +LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk) + +build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build + $(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED) + +build/$(APP)-static: $(SRCS-y) Makefile $(PC_FILE) | build + $(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC) + +build: + @mkdir -p $@ + +.PHONY: clean +clean: + rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared + test -d build && rmdir -p build || true + +else # Build using legacy build system +ifeq ($(RTE_SDK),) +$(error "Please define RTE_SDK environment variable") +endif + +# Default target, detect a build directory, by looking for a path with a .config +RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard $(RTE_SDK)/*/.config))))) + +include $(RTE_SDK)/mk/rte.vars.mk + + +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) +CFLAGS += -DALLOW_EXPERIMENTAL_API + +include $(RTE_SDK)/mk/rte.extapp.mk +endif diff --git a/src/spdk/dpdk/examples/ioat/ioatfwd.c b/src/spdk/dpdk/examples/ioat/ioatfwd.c new file mode 100644 index 000000000..53de23179 --- /dev/null +++ b/src/spdk/dpdk/examples/ioat/ioatfwd.c @@ -0,0 +1,1016 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2019 Intel Corporation + */ + +#include <stdint.h> +#include <getopt.h> +#include <signal.h> +#include <stdbool.h> +#include <unistd.h> + +#include <rte_malloc.h> +#include <rte_ethdev.h> +#include <rte_rawdev.h> +#include <rte_ioat_rawdev.h> + +/* size of ring used for software copying between rx and tx. */ +#define RTE_LOGTYPE_IOAT RTE_LOGTYPE_USER1 +#define MAX_PKT_BURST 32 +#define MEMPOOL_CACHE_SIZE 512 +#define MIN_POOL_SIZE 65536U +#define CMD_LINE_OPT_MAC_UPDATING "mac-updating" +#define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" +#define CMD_LINE_OPT_PORTMASK "portmask" +#define CMD_LINE_OPT_NB_QUEUE "nb-queue" +#define CMD_LINE_OPT_COPY_TYPE "copy-type" +#define CMD_LINE_OPT_RING_SIZE "ring-size" + +/* configurable number of RX/TX ring descriptors */ +#define RX_DEFAULT_RINGSIZE 1024 +#define TX_DEFAULT_RINGSIZE 1024 + +/* max number of RX queues per port */ +#define MAX_RX_QUEUES_COUNT 8 + +struct rxtx_port_config { + /* common config */ + uint16_t rxtx_port; + uint16_t nb_queues; + /* for software copy mode */ + struct rte_ring *rx_to_tx_ring; + /* for IOAT rawdev copy mode */ + uint16_t ioat_ids[MAX_RX_QUEUES_COUNT]; +}; + +struct rxtx_transmission_config { + struct rxtx_port_config ports[RTE_MAX_ETHPORTS]; + uint16_t nb_ports; + uint16_t nb_lcores; +}; + +/* per-port statistics struct */ +struct ioat_port_statistics { + uint64_t rx[RTE_MAX_ETHPORTS]; + uint64_t tx[RTE_MAX_ETHPORTS]; + uint64_t tx_dropped[RTE_MAX_ETHPORTS]; + uint64_t copy_dropped[RTE_MAX_ETHPORTS]; +}; +struct ioat_port_statistics port_statistics; + +struct total_statistics { + uint64_t total_packets_dropped; + uint64_t total_packets_tx; + uint64_t total_packets_rx; + uint64_t total_successful_enqueues; + uint64_t total_failed_enqueues; +}; + +typedef enum copy_mode_t { +#define COPY_MODE_SW "sw" + COPY_MODE_SW_NUM, +#define COPY_MODE_IOAT "hw" + COPY_MODE_IOAT_NUM, + COPY_MODE_INVALID_NUM, + COPY_MODE_SIZE_NUM = COPY_MODE_INVALID_NUM +} copy_mode_t; + +/* mask of enabled ports */ +static uint32_t ioat_enabled_port_mask; + +/* number of RX queues per port */ +static uint16_t nb_queues = 1; + +/* MAC updating enabled by default. */ +static int mac_updating = 1; + +/* hardare copy mode enabled by default. */ +static copy_mode_t copy_mode = COPY_MODE_IOAT_NUM; + +/* size of IOAT rawdev ring for hardware copy mode or + * rte_ring for software copy mode + */ +static unsigned short ring_size = 2048; + +/* global transmission config */ +struct rxtx_transmission_config cfg; + +/* configurable number of RX/TX ring descriptors */ +static uint16_t nb_rxd = RX_DEFAULT_RINGSIZE; +static uint16_t nb_txd = TX_DEFAULT_RINGSIZE; + +static volatile bool force_quit; + +/* ethernet addresses of ports */ +static struct rte_ether_addr ioat_ports_eth_addr[RTE_MAX_ETHPORTS]; + +static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; +struct rte_mempool *ioat_pktmbuf_pool; + +/* Print out statistics for one port. */ +static void +print_port_stats(uint16_t port_id) +{ + printf("\nStatistics for port %u ------------------------------" + "\nPackets sent: %34"PRIu64 + "\nPackets received: %30"PRIu64 + "\nPackets dropped on tx: %25"PRIu64 + "\nPackets dropped on copy: %23"PRIu64, + port_id, + port_statistics.tx[port_id], + port_statistics.rx[port_id], + port_statistics.tx_dropped[port_id], + port_statistics.copy_dropped[port_id]); +} + +/* Print out statistics for one IOAT rawdev device. */ +static void +print_rawdev_stats(uint32_t dev_id, uint64_t *xstats, + unsigned int *ids_xstats, uint16_t nb_xstats, + struct rte_rawdev_xstats_name *names_xstats) +{ + uint16_t i; + + printf("\nIOAT channel %u", dev_id); + for (i = 0; i < nb_xstats; i++) + printf("\n\t %s: %*"PRIu64, + names_xstats[ids_xstats[i]].name, + (int)(37 - strlen(names_xstats[ids_xstats[i]].name)), + xstats[i]); +} + +static void +print_total_stats(struct total_statistics *ts) +{ + printf("\nAggregate statistics ===============================" + "\nTotal packets Tx: %24"PRIu64" [pps]" + "\nTotal packets Rx: %24"PRIu64" [pps]" + "\nTotal packets dropped: %19"PRIu64" [pps]", + ts->total_packets_tx, + ts->total_packets_rx, + ts->total_packets_dropped); + + if (copy_mode == COPY_MODE_IOAT_NUM) { + printf("\nTotal IOAT successful enqueues: %8"PRIu64" [enq/s]" + "\nTotal IOAT failed enqueues: %12"PRIu64" [enq/s]", + ts->total_successful_enqueues, + ts->total_failed_enqueues); + } + + printf("\n====================================================\n"); +} + +/* Print out statistics on packets dropped. */ +static void +print_stats(char *prgname) +{ + struct total_statistics ts, delta_ts; + uint32_t i, port_id, dev_id; + struct rte_rawdev_xstats_name *names_xstats; + uint64_t *xstats; + unsigned int *ids_xstats, nb_xstats; + char status_string[120]; /* to print at the top of the output */ + int status_strlen; + int ret; + + const char clr[] = { 27, '[', '2', 'J', '\0' }; + const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' }; + + status_strlen = snprintf(status_string, sizeof(status_string), + "%s, ", prgname); + status_strlen += snprintf(status_string + status_strlen, + sizeof(status_string) - status_strlen, + "Worker Threads = %d, ", + rte_lcore_count() > 2 ? 2 : 1); + status_strlen += snprintf(status_string + status_strlen, + sizeof(status_string) - status_strlen, + "Copy Mode = %s,\n", copy_mode == COPY_MODE_SW_NUM ? + COPY_MODE_SW : COPY_MODE_IOAT); + status_strlen += snprintf(status_string + status_strlen, + sizeof(status_string) - status_strlen, + "Updating MAC = %s, ", mac_updating ? + "enabled" : "disabled"); + status_strlen += snprintf(status_string + status_strlen, + sizeof(status_string) - status_strlen, + "Rx Queues = %d, ", nb_queues); + status_strlen += snprintf(status_string + status_strlen, + sizeof(status_string) - status_strlen, + "Ring Size = %d\n", ring_size); + + /* Allocate memory for xstats names and values */ + ret = rte_rawdev_xstats_names_get( + cfg.ports[0].ioat_ids[0], NULL, 0); + if (ret < 0) + return; + nb_xstats = (unsigned int)ret; + + names_xstats = malloc(sizeof(*names_xstats) * nb_xstats); + if (names_xstats == NULL) { + rte_exit(EXIT_FAILURE, + "Error allocating xstat names memory\n"); + } + rte_rawdev_xstats_names_get(cfg.ports[0].ioat_ids[0], + names_xstats, nb_xstats); + + ids_xstats = malloc(sizeof(*ids_xstats) * 2); + if (ids_xstats == NULL) { + rte_exit(EXIT_FAILURE, + "Error allocating xstat ids_xstats memory\n"); + } + + xstats = malloc(sizeof(*xstats) * 2); + if (xstats == NULL) { + rte_exit(EXIT_FAILURE, + "Error allocating xstat memory\n"); + } + + /* Get failed/successful enqueues stats index */ + ids_xstats[0] = ids_xstats[1] = nb_xstats; + for (i = 0; i < nb_xstats; i++) { + if (!strcmp(names_xstats[i].name, "failed_enqueues")) + ids_xstats[0] = i; + else if (!strcmp(names_xstats[i].name, "successful_enqueues")) + ids_xstats[1] = i; + if (ids_xstats[0] < nb_xstats && ids_xstats[1] < nb_xstats) + break; + } + if (ids_xstats[0] == nb_xstats || ids_xstats[1] == nb_xstats) { + rte_exit(EXIT_FAILURE, + "Error getting failed/successful enqueues stats index\n"); + } + + memset(&ts, 0, sizeof(struct total_statistics)); + + while (!force_quit) { + /* Sleep for 1 second each round - init sleep allows reading + * messages from app startup. + */ + sleep(1); + + /* Clear screen and move to top left */ + printf("%s%s", clr, topLeft); + + memset(&delta_ts, 0, sizeof(struct total_statistics)); + + printf("%s", status_string); + + for (i = 0; i < cfg.nb_ports; i++) { + port_id = cfg.ports[i].rxtx_port; + print_port_stats(port_id); + + delta_ts.total_packets_dropped += + port_statistics.tx_dropped[port_id] + + port_statistics.copy_dropped[port_id]; + delta_ts.total_packets_tx += + port_statistics.tx[port_id]; + delta_ts.total_packets_rx += + port_statistics.rx[port_id]; + + if (copy_mode == COPY_MODE_IOAT_NUM) { + uint32_t j; + + for (j = 0; j < cfg.ports[i].nb_queues; j++) { + dev_id = cfg.ports[i].ioat_ids[j]; + rte_rawdev_xstats_get(dev_id, + ids_xstats, xstats, 2); + + print_rawdev_stats(dev_id, xstats, + ids_xstats, 2, names_xstats); + + delta_ts.total_failed_enqueues += + xstats[ids_xstats[0]]; + delta_ts.total_successful_enqueues += + xstats[ids_xstats[1]]; + } + } + } + + delta_ts.total_packets_tx -= ts.total_packets_tx; + delta_ts.total_packets_rx -= ts.total_packets_rx; + delta_ts.total_packets_dropped -= ts.total_packets_dropped; + delta_ts.total_failed_enqueues -= ts.total_failed_enqueues; + delta_ts.total_successful_enqueues -= + ts.total_successful_enqueues; + + printf("\n"); + print_total_stats(&delta_ts); + + ts.total_packets_tx += delta_ts.total_packets_tx; + ts.total_packets_rx += delta_ts.total_packets_rx; + ts.total_packets_dropped += delta_ts.total_packets_dropped; + ts.total_failed_enqueues += delta_ts.total_failed_enqueues; + ts.total_successful_enqueues += + delta_ts.total_successful_enqueues; + } + + free(names_xstats); + free(xstats); + free(ids_xstats); +} + +static void +update_mac_addrs(struct rte_mbuf *m, uint32_t dest_portid) +{ + struct rte_ether_hdr *eth; + void *tmp; + + eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); + + /* 02:00:00:00:00:xx - overwriting 2 bytes of source address but + * it's acceptable cause it gets overwritten by rte_ether_addr_copy + */ + tmp = ð->d_addr.addr_bytes[0]; + *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40); + + /* src addr */ + rte_ether_addr_copy(&ioat_ports_eth_addr[dest_portid], ð->s_addr); +} + +static inline void +pktmbuf_sw_copy(struct rte_mbuf *src, struct rte_mbuf *dst) +{ + /* Copy packet metadata */ + rte_memcpy(&dst->rearm_data, + &src->rearm_data, + offsetof(struct rte_mbuf, cacheline1) + - offsetof(struct rte_mbuf, rearm_data)); + + /* Copy packet data */ + rte_memcpy(rte_pktmbuf_mtod(dst, char *), + rte_pktmbuf_mtod(src, char *), src->data_len); +} + +static uint32_t +ioat_enqueue_packets(struct rte_mbuf **pkts, + uint32_t nb_rx, uint16_t dev_id) +{ + int ret; + uint32_t i; + struct rte_mbuf *pkts_copy[MAX_PKT_BURST]; + + const uint64_t addr_offset = RTE_PTR_DIFF(pkts[0]->buf_addr, + &pkts[0]->rearm_data); + + ret = rte_mempool_get_bulk(ioat_pktmbuf_pool, + (void *)pkts_copy, nb_rx); + + if (unlikely(ret < 0)) + rte_exit(EXIT_FAILURE, "Unable to allocate memory.\n"); + + for (i = 0; i < nb_rx; i++) { + /* Perform data copy */ + ret = rte_ioat_enqueue_copy(dev_id, + pkts[i]->buf_iova + - addr_offset, + pkts_copy[i]->buf_iova + - addr_offset, + rte_pktmbuf_data_len(pkts[i]) + + addr_offset, + (uintptr_t)pkts[i], + (uintptr_t)pkts_copy[i], + 0 /* nofence */); + + if (ret != 1) + break; + } + + ret = i; + /* Free any not enqueued packets. */ + rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)&pkts[i], nb_rx - i); + rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)&pkts_copy[i], + nb_rx - i); + + return ret; +} + +/* Receive packets on one port and enqueue to IOAT rawdev or rte_ring. */ +static void +ioat_rx_port(struct rxtx_port_config *rx_config) +{ + uint32_t nb_rx, nb_enq, i, j; + struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; + + for (i = 0; i < rx_config->nb_queues; i++) { + + nb_rx = rte_eth_rx_burst(rx_config->rxtx_port, i, + pkts_burst, MAX_PKT_BURST); + + if (nb_rx == 0) + continue; + + port_statistics.rx[rx_config->rxtx_port] += nb_rx; + + if (copy_mode == COPY_MODE_IOAT_NUM) { + /* Perform packet hardware copy */ + nb_enq = ioat_enqueue_packets(pkts_burst, + nb_rx, rx_config->ioat_ids[i]); + if (nb_enq > 0) + rte_ioat_do_copies(rx_config->ioat_ids[i]); + } else { + /* Perform packet software copy, free source packets */ + int ret; + struct rte_mbuf *pkts_burst_copy[MAX_PKT_BURST]; + + ret = rte_mempool_get_bulk(ioat_pktmbuf_pool, + (void *)pkts_burst_copy, nb_rx); + + if (unlikely(ret < 0)) + rte_exit(EXIT_FAILURE, + "Unable to allocate memory.\n"); + + for (j = 0; j < nb_rx; j++) + pktmbuf_sw_copy(pkts_burst[j], + pkts_burst_copy[j]); + + rte_mempool_put_bulk(ioat_pktmbuf_pool, + (void *)pkts_burst, nb_rx); + + nb_enq = rte_ring_enqueue_burst( + rx_config->rx_to_tx_ring, + (void *)pkts_burst_copy, nb_rx, NULL); + + /* Free any not enqueued packets. */ + rte_mempool_put_bulk(ioat_pktmbuf_pool, + (void *)&pkts_burst_copy[nb_enq], + nb_rx - nb_enq); + } + + port_statistics.copy_dropped[rx_config->rxtx_port] += + (nb_rx - nb_enq); + } +} + +/* Transmit packets from IOAT rawdev/rte_ring for one port. */ +static void +ioat_tx_port(struct rxtx_port_config *tx_config) +{ + uint32_t i, j, nb_dq = 0; + struct rte_mbuf *mbufs_src[MAX_PKT_BURST]; + struct rte_mbuf *mbufs_dst[MAX_PKT_BURST]; + + for (i = 0; i < tx_config->nb_queues; i++) { + if (copy_mode == COPY_MODE_IOAT_NUM) { + /* Deque the mbufs from IOAT device. */ + nb_dq = rte_ioat_completed_copies( + tx_config->ioat_ids[i], MAX_PKT_BURST, + (void *)mbufs_src, (void *)mbufs_dst); + } else { + /* Deque the mbufs from rx_to_tx_ring. */ + nb_dq = rte_ring_dequeue_burst( + tx_config->rx_to_tx_ring, (void *)mbufs_dst, + MAX_PKT_BURST, NULL); + } + + if ((int32_t) nb_dq <= 0) + return; + + if (copy_mode == COPY_MODE_IOAT_NUM) + rte_mempool_put_bulk(ioat_pktmbuf_pool, + (void *)mbufs_src, nb_dq); + + /* Update macs if enabled */ + if (mac_updating) { + for (j = 0; j < nb_dq; j++) + update_mac_addrs(mbufs_dst[j], + tx_config->rxtx_port); + } + + const uint16_t nb_tx = rte_eth_tx_burst( + tx_config->rxtx_port, 0, + (void *)mbufs_dst, nb_dq); + + port_statistics.tx[tx_config->rxtx_port] += nb_tx; + + /* Free any unsent packets. */ + if (unlikely(nb_tx < nb_dq)) + rte_mempool_put_bulk(ioat_pktmbuf_pool, + (void *)&mbufs_dst[nb_tx], + nb_dq - nb_tx); + } +} + +/* Main rx processing loop for IOAT rawdev. */ +static void +rx_main_loop(void) +{ + uint16_t i; + uint16_t nb_ports = cfg.nb_ports; + + RTE_LOG(INFO, IOAT, "Entering main rx loop for copy on lcore %u\n", + rte_lcore_id()); + + while (!force_quit) + for (i = 0; i < nb_ports; i++) + ioat_rx_port(&cfg.ports[i]); +} + +/* Main tx processing loop for hardware copy. */ +static void +tx_main_loop(void) +{ + uint16_t i; + uint16_t nb_ports = cfg.nb_ports; + + RTE_LOG(INFO, IOAT, "Entering main tx loop for copy on lcore %u\n", + rte_lcore_id()); + + while (!force_quit) + for (i = 0; i < nb_ports; i++) + ioat_tx_port(&cfg.ports[i]); +} + +/* Main rx and tx loop if only one slave lcore available */ +static void +rxtx_main_loop(void) +{ + uint16_t i; + uint16_t nb_ports = cfg.nb_ports; + + RTE_LOG(INFO, IOAT, "Entering main rx and tx loop for copy on" + " lcore %u\n", rte_lcore_id()); + + while (!force_quit) + for (i = 0; i < nb_ports; i++) { + ioat_rx_port(&cfg.ports[i]); + ioat_tx_port(&cfg.ports[i]); + } +} + +static void start_forwarding_cores(void) +{ + uint32_t lcore_id = rte_lcore_id(); + + RTE_LOG(INFO, IOAT, "Entering %s on lcore %u\n", + __func__, rte_lcore_id()); + + if (cfg.nb_lcores == 1) { + lcore_id = rte_get_next_lcore(lcore_id, true, true); + rte_eal_remote_launch((lcore_function_t *)rxtx_main_loop, + NULL, lcore_id); + } else if (cfg.nb_lcores > 1) { + lcore_id = rte_get_next_lcore(lcore_id, true, true); + rte_eal_remote_launch((lcore_function_t *)rx_main_loop, + NULL, lcore_id); + + lcore_id = rte_get_next_lcore(lcore_id, true, true); + rte_eal_remote_launch((lcore_function_t *)tx_main_loop, NULL, + lcore_id); + } +} + +/* Display usage */ +static void +ioat_usage(const char *prgname) +{ + printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" + " -p --portmask: hexadecimal bitmask of ports to configure\n" + " -q NQ: number of RX queues per port (default is 1)\n" + " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n" + " When enabled:\n" + " - The source MAC address is replaced by the TX port MAC address\n" + " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n" + " -c --copy-type CT: type of copy: sw|hw\n" + " -s --ring-size RS: size of IOAT rawdev ring for hardware copy mode or rte_ring for software copy mode\n", + prgname); +} + +static int +ioat_parse_portmask(const char *portmask) +{ + char *end = NULL; + unsigned long pm; + + /* Parse hexadecimal string */ + pm = strtoul(portmask, &end, 16); + if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) + return -1; + + return pm; +} + +static copy_mode_t +ioat_parse_copy_mode(const char *copy_mode) +{ + if (strcmp(copy_mode, COPY_MODE_SW) == 0) + return COPY_MODE_SW_NUM; + else if (strcmp(copy_mode, COPY_MODE_IOAT) == 0) + return COPY_MODE_IOAT_NUM; + + return COPY_MODE_INVALID_NUM; +} + +/* Parse the argument given in the command line of the application */ +static int +ioat_parse_args(int argc, char **argv, unsigned int nb_ports) +{ + static const char short_options[] = + "p:" /* portmask */ + "q:" /* number of RX queues per port */ + "c:" /* copy type (sw|hw) */ + "s:" /* ring size */ + ; + + static const struct option lgopts[] = { + {CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1}, + {CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0}, + {CMD_LINE_OPT_PORTMASK, required_argument, NULL, 'p'}, + {CMD_LINE_OPT_NB_QUEUE, required_argument, NULL, 'q'}, + {CMD_LINE_OPT_COPY_TYPE, required_argument, NULL, 'c'}, + {CMD_LINE_OPT_RING_SIZE, required_argument, NULL, 's'}, + {NULL, 0, 0, 0} + }; + + const unsigned int default_port_mask = (1 << nb_ports) - 1; + int opt, ret; + char **argvopt; + int option_index; + char *prgname = argv[0]; + + ioat_enabled_port_mask = default_port_mask; + argvopt = argv; + + while ((opt = getopt_long(argc, argvopt, short_options, + lgopts, &option_index)) != EOF) { + + switch (opt) { + /* portmask */ + case 'p': + ioat_enabled_port_mask = ioat_parse_portmask(optarg); + if (ioat_enabled_port_mask & ~default_port_mask || + ioat_enabled_port_mask <= 0) { + printf("Invalid portmask, %s, suggest 0x%x\n", + optarg, default_port_mask); + ioat_usage(prgname); + return -1; + } + break; + + case 'q': + nb_queues = atoi(optarg); + if (nb_queues == 0 || nb_queues > MAX_RX_QUEUES_COUNT) { + printf("Invalid RX queues number %s. Max %u\n", + optarg, MAX_RX_QUEUES_COUNT); + ioat_usage(prgname); + return -1; + } + break; + + case 'c': + copy_mode = ioat_parse_copy_mode(optarg); + if (copy_mode == COPY_MODE_INVALID_NUM) { + printf("Invalid copy type. Use: sw, hw\n"); + ioat_usage(prgname); + return -1; + } + break; + + case 's': + ring_size = atoi(optarg); + if (ring_size == 0) { + printf("Invalid ring size, %s.\n", optarg); + ioat_usage(prgname); + return -1; + } + break; + + /* long options */ + case 0: + break; + + default: + ioat_usage(prgname); + return -1; + } + } + + printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled"); + if (optind >= 0) + argv[optind - 1] = prgname; + + ret = optind - 1; + optind = 1; /* reset getopt lib */ + return ret; +} + +/* check link status, return true if at least one port is up */ +static int +check_link_status(uint32_t port_mask) +{ + uint16_t portid; + struct rte_eth_link link; + int ret, link_status = 0; + + printf("\nChecking link status\n"); + RTE_ETH_FOREACH_DEV(portid) { + if ((port_mask & (1 << portid)) == 0) + continue; + + memset(&link, 0, sizeof(link)); + ret = rte_eth_link_get(portid, &link); + if (ret < 0) { + printf("Port %u link get failed: err=%d\n", + portid, ret); + continue; + } + + /* Print link status */ + if (link.link_status) { + printf( + "Port %d Link Up. Speed %u Mbps - %s\n", + portid, link.link_speed, + (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? + ("full-duplex") : ("half-duplex")); + link_status = 1; + } else + printf("Port %d Link Down\n", portid); + } + return link_status; +} + +static void +configure_rawdev_queue(uint32_t dev_id) +{ + struct rte_ioat_rawdev_config dev_config = { .ring_size = ring_size }; + struct rte_rawdev_info info = { .dev_private = &dev_config }; + + if (rte_rawdev_configure(dev_id, &info) != 0) { + rte_exit(EXIT_FAILURE, + "Error with rte_rawdev_configure()\n"); + } + if (rte_rawdev_start(dev_id) != 0) { + rte_exit(EXIT_FAILURE, + "Error with rte_rawdev_start()\n"); + } +} + +static void +assign_rawdevs(void) +{ + uint16_t nb_rawdev = 0, rdev_id = 0; + uint32_t i, j; + + for (i = 0; i < cfg.nb_ports; i++) { + for (j = 0; j < cfg.ports[i].nb_queues; j++) { + struct rte_rawdev_info rdev_info = { 0 }; + + do { + if (rdev_id == rte_rawdev_count()) + goto end; + rte_rawdev_info_get(rdev_id++, &rdev_info); + } while (rdev_info.driver_name == NULL || + strcmp(rdev_info.driver_name, + IOAT_PMD_RAWDEV_NAME_STR) != 0); + + cfg.ports[i].ioat_ids[j] = rdev_id - 1; + configure_rawdev_queue(cfg.ports[i].ioat_ids[j]); + ++nb_rawdev; + } + } +end: + if (nb_rawdev < cfg.nb_ports * cfg.ports[0].nb_queues) + rte_exit(EXIT_FAILURE, + "Not enough IOAT rawdevs (%u) for all queues (%u).\n", + nb_rawdev, cfg.nb_ports * cfg.ports[0].nb_queues); + RTE_LOG(INFO, IOAT, "Number of used rawdevs: %u.\n", nb_rawdev); +} + +static void +assign_rings(void) +{ + uint32_t i; + + for (i = 0; i < cfg.nb_ports; i++) { + char ring_name[RTE_RING_NAMESIZE]; + + snprintf(ring_name, sizeof(ring_name), "rx_to_tx_ring_%u", i); + /* Create ring for inter core communication */ + cfg.ports[i].rx_to_tx_ring = rte_ring_create( + ring_name, ring_size, + rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ); + + if (cfg.ports[i].rx_to_tx_ring == NULL) + rte_exit(EXIT_FAILURE, "Ring create failed: %s\n", + rte_strerror(rte_errno)); + } +} + +/* + * Initializes a given port using global settings and with the RX buffers + * coming from the mbuf_pool passed as a parameter. + */ +static inline void +port_init(uint16_t portid, struct rte_mempool *mbuf_pool, uint16_t nb_queues) +{ + /* configuring port to use RSS for multiple RX queues */ + static const struct rte_eth_conf port_conf = { + .rxmode = { + .mq_mode = ETH_MQ_RX_RSS, + .max_rx_pkt_len = RTE_ETHER_MAX_LEN + }, + .rx_adv_conf = { + .rss_conf = { + .rss_key = NULL, + .rss_hf = ETH_RSS_PROTO_MASK, + } + } + }; + + struct rte_eth_rxconf rxq_conf; + struct rte_eth_txconf txq_conf; + struct rte_eth_conf local_port_conf = port_conf; + struct rte_eth_dev_info dev_info; + int ret, i; + + /* Skip ports that are not enabled */ + if ((ioat_enabled_port_mask & (1 << portid)) == 0) { + printf("Skipping disabled port %u\n", portid); + return; + } + + /* Init port */ + printf("Initializing port %u... ", portid); + fflush(stdout); + ret = rte_eth_dev_info_get(portid, &dev_info); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot get device info: %s, port=%u\n", + rte_strerror(-ret), portid); + + local_port_conf.rx_adv_conf.rss_conf.rss_hf &= + dev_info.flow_type_rss_offloads; + if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) + local_port_conf.txmode.offloads |= + DEV_TX_OFFLOAD_MBUF_FAST_FREE; + ret = rte_eth_dev_configure(portid, nb_queues, 1, &local_port_conf); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot configure device:" + " err=%d, port=%u\n", ret, portid); + + ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, + &nb_txd); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "Cannot adjust number of descriptors: err=%d, port=%u\n", + ret, portid); + + rte_eth_macaddr_get(portid, &ioat_ports_eth_addr[portid]); + + /* Init RX queues */ + rxq_conf = dev_info.default_rxconf; + rxq_conf.offloads = local_port_conf.rxmode.offloads; + for (i = 0; i < nb_queues; i++) { + ret = rte_eth_rx_queue_setup(portid, i, nb_rxd, + rte_eth_dev_socket_id(portid), &rxq_conf, + mbuf_pool); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "rte_eth_rx_queue_setup:err=%d,port=%u, queue_id=%u\n", + ret, portid, i); + } + + /* Init one TX queue on each port */ + txq_conf = dev_info.default_txconf; + txq_conf.offloads = local_port_conf.txmode.offloads; + ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, + rte_eth_dev_socket_id(portid), + &txq_conf); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "rte_eth_tx_queue_setup:err=%d,port=%u\n", + ret, portid); + + /* Initialize TX buffers */ + tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, + rte_eth_dev_socket_id(portid)); + if (tx_buffer[portid] == NULL) + rte_exit(EXIT_FAILURE, + "Cannot allocate buffer for tx on port %u\n", + portid); + + rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], + rte_eth_tx_buffer_count_callback, + &port_statistics.tx_dropped[portid]); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "Cannot set error callback for tx buffer on port %u\n", + portid); + + /* Start device */ + ret = rte_eth_dev_start(portid); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "rte_eth_dev_start:err=%d, port=%u\n", + ret, portid); + + rte_eth_promiscuous_enable(portid); + + printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", + portid, + ioat_ports_eth_addr[portid].addr_bytes[0], + ioat_ports_eth_addr[portid].addr_bytes[1], + ioat_ports_eth_addr[portid].addr_bytes[2], + ioat_ports_eth_addr[portid].addr_bytes[3], + ioat_ports_eth_addr[portid].addr_bytes[4], + ioat_ports_eth_addr[portid].addr_bytes[5]); + + cfg.ports[cfg.nb_ports].rxtx_port = portid; + cfg.ports[cfg.nb_ports++].nb_queues = nb_queues; +} + +static void +signal_handler(int signum) +{ + if (signum == SIGINT || signum == SIGTERM) { + printf("\n\nSignal %d received, preparing to exit...\n", + signum); + force_quit = true; + } +} + +int +main(int argc, char **argv) +{ + int ret; + uint16_t nb_ports, portid; + uint32_t i; + unsigned int nb_mbufs; + + /* Init EAL */ + ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); + argc -= ret; + argv += ret; + + force_quit = false; + signal(SIGINT, signal_handler); + signal(SIGTERM, signal_handler); + + nb_ports = rte_eth_dev_count_avail(); + if (nb_ports == 0) + rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); + + /* Parse application arguments (after the EAL ones) */ + ret = ioat_parse_args(argc, argv, nb_ports); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Invalid IOAT arguments\n"); + + nb_mbufs = RTE_MAX(nb_ports * (nb_queues * (nb_rxd + nb_txd + + 4 * MAX_PKT_BURST) + rte_lcore_count() * MEMPOOL_CACHE_SIZE), + MIN_POOL_SIZE); + + /* Create the mbuf pool */ + ioat_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs, + MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, + rte_socket_id()); + if (ioat_pktmbuf_pool == NULL) + rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); + + /* Initialise each port */ + cfg.nb_ports = 0; + RTE_ETH_FOREACH_DEV(portid) + port_init(portid, ioat_pktmbuf_pool, nb_queues); + + /* Initialize port xstats */ + memset(&port_statistics, 0, sizeof(port_statistics)); + + while (!check_link_status(ioat_enabled_port_mask) && !force_quit) + sleep(1); + + /* Check if there is enough lcores for all ports. */ + cfg.nb_lcores = rte_lcore_count() - 1; + if (cfg.nb_lcores < 1) + rte_exit(EXIT_FAILURE, + "There should be at least one slave lcore.\n"); + + if (copy_mode == COPY_MODE_IOAT_NUM) + assign_rawdevs(); + else /* copy_mode == COPY_MODE_SW_NUM */ + assign_rings(); + + start_forwarding_cores(); + /* master core prints stats while other cores forward */ + print_stats(argv[0]); + + /* force_quit is true when we get here */ + rte_eal_mp_wait_lcore(); + + uint32_t j; + for (i = 0; i < cfg.nb_ports; i++) { + printf("Closing port %d\n", cfg.ports[i].rxtx_port); + rte_eth_dev_stop(cfg.ports[i].rxtx_port); + rte_eth_dev_close(cfg.ports[i].rxtx_port); + if (copy_mode == COPY_MODE_IOAT_NUM) { + for (j = 0; j < cfg.ports[i].nb_queues; j++) { + printf("Stopping rawdev %d\n", + cfg.ports[i].ioat_ids[j]); + rte_rawdev_stop(cfg.ports[i].ioat_ids[j]); + } + } else /* copy_mode == COPY_MODE_SW_NUM */ + rte_ring_free(cfg.ports[i].rx_to_tx_ring); + } + + printf("Bye...\n"); + return 0; +} diff --git a/src/spdk/dpdk/examples/ioat/meson.build b/src/spdk/dpdk/examples/ioat/meson.build new file mode 100644 index 000000000..f72cf70e7 --- /dev/null +++ b/src/spdk/dpdk/examples/ioat/meson.build @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2019 Intel Corporation + +# meson file, for building this example as part of a main DPDK build. +# +# To build this example as a standalone application with an already-installed +# DPDK instance, use 'make' + +allow_experimental_apis = true +build = dpdk_conf.has('RTE_LIBRTE_PMD_IOAT_RAWDEV') + +deps += ['rawdev_ioat'] + +sources = files( + 'ioatfwd.c' +) |