diff options
Diffstat (limited to 'src/spdk/dpdk/examples/multi_process')
26 files changed, 2367 insertions, 0 deletions
diff --git a/src/spdk/dpdk/examples/multi_process/Makefile b/src/spdk/dpdk/examples/multi_process/Makefile new file mode 100644 index 000000000..7f7e68d91 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/Makefile @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation + +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 $(RTE_SDK)/mk/rte.vars.mk + +DIRS-$(CONFIG_RTE_EXEC_ENV_LINUX) += client_server_mp +DIRS-$(CONFIG_RTE_EXEC_ENV_LINUX) += simple_mp +DIRS-$(CONFIG_RTE_EXEC_ENV_LINUX) += symmetric_mp +DIRS-$(CONFIG_RTE_EXEC_ENV_LINUX) += hotplug_mp + +include $(RTE_SDK)/mk/rte.extsubdir.mk diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/Makefile b/src/spdk/dpdk/examples/multi_process/client_server_mp/Makefile new file mode 100644 index 000000000..fe7a8af60 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/Makefile @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation + +ifeq ($(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 $(RTE_SDK)/mk/rte.vars.mk + +DIRS-$(CONFIG_RTE_EXEC_ENV_LINUX) += mp_client +DIRS-$(CONFIG_RTE_EXEC_ENV_LINUX) += mp_server + +include $(RTE_SDK)/mk/rte.extsubdir.mk diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/Makefile b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/Makefile new file mode 100644 index 000000000..7c447feba --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/Makefile @@ -0,0 +1,21 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation + +ifeq ($(RTE_SDK),) +$(error "Please define RTE_SDK environment variable") +endif + +# Default target, can be overridden by command line or environment +include $(RTE_SDK)/mk/rte.vars.mk + +# binary name +APP = mp_client + +# all source are stored in SRCS-y +SRCS-y := client.c + +CFLAGS += $(WERROR_FLAGS) -O3 +CFLAGS += -I$(SRCDIR)/../shared +CFLAGS += -DALLOW_EXPERIMENTAL_API + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/client.c b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/client.c new file mode 100644 index 000000000..361d90b54 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/client.c @@ -0,0 +1,271 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2016 Intel Corporation + */ + +#include <stdint.h> +#include <stdio.h> +#include <inttypes.h> +#include <stdarg.h> +#include <errno.h> +#include <sys/queue.h> +#include <stdlib.h> +#include <getopt.h> +#include <string.h> + +#include <rte_common.h> +#include <rte_malloc.h> +#include <rte_memory.h> +#include <rte_memzone.h> +#include <rte_eal.h> +#include <rte_atomic.h> +#include <rte_branch_prediction.h> +#include <rte_log.h> +#include <rte_per_lcore.h> +#include <rte_lcore.h> +#include <rte_ring.h> +#include <rte_launch.h> +#include <rte_debug.h> +#include <rte_mempool.h> +#include <rte_mbuf.h> +#include <rte_interrupts.h> +#include <rte_ether.h> +#include <rte_ethdev.h> +#include <rte_string_fns.h> + +#include "common.h" + +/* Number of packets to attempt to read from queue */ +#define PKT_READ_SIZE ((uint16_t)32) + +/* our client id number - tells us which rx queue to read, and NIC TX + * queue to write to. */ +static uint8_t client_id = 0; + +#define MBQ_CAPACITY 32 + +/* maps input ports to output ports for packets */ +static uint16_t output_ports[RTE_MAX_ETHPORTS]; + +/* buffers up a set of packet that are ready to send */ +struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; + +/* shared data from server. We update statistics here */ +static volatile struct tx_stats *tx_stats; + + +/* + * print a usage message + */ +static void +usage(const char *progname) +{ + printf("Usage: %s [EAL args] -- -n <client_id>\n\n", progname); +} + +/* + * Convert the client id number from a string to an int. + */ +static int +parse_client_num(const char *client) +{ + char *end = NULL; + unsigned long temp; + + if (client == NULL || *client == '\0') + return -1; + + temp = strtoul(client, &end, 10); + if (end == NULL || *end != '\0') + return -1; + + client_id = (uint8_t)temp; + return 0; +} + +/* + * Parse the application arguments to the client app. + */ +static int +parse_app_args(int argc, char *argv[]) +{ + int option_index, opt; + char **argvopt = argv; + const char *progname = NULL; + static struct option lgopts[] = { /* no long options */ + {NULL, 0, 0, 0 } + }; + progname = argv[0]; + + while ((opt = getopt_long(argc, argvopt, "n:", lgopts, + &option_index)) != EOF){ + switch (opt){ + case 'n': + if (parse_client_num(optarg) != 0){ + usage(progname); + return -1; + } + break; + default: + usage(progname); + return -1; + } + } + return 0; +} + +/* + * Tx buffer error callback + */ +static void +flush_tx_error_callback(struct rte_mbuf **unsent, uint16_t count, + void *userdata) { + int i; + uint16_t port_id = (uintptr_t)userdata; + + tx_stats->tx_drop[port_id] += count; + + /* free the mbufs which failed from transmit */ + for (i = 0; i < count; i++) + rte_pktmbuf_free(unsent[i]); + +} + +static void +configure_tx_buffer(uint16_t port_id, uint16_t size) +{ + int ret; + + /* Initialize TX buffers */ + tx_buffer[port_id] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(size), 0, + rte_eth_dev_socket_id(port_id)); + if (tx_buffer[port_id] == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", + port_id); + + rte_eth_tx_buffer_init(tx_buffer[port_id], size); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[port_id], + flush_tx_error_callback, (void *)(intptr_t)port_id); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "Cannot set error callback for tx buffer on port %u\n", + port_id); +} + +/* + * set up output ports so that all traffic on port gets sent out + * its paired port. Index using actual port numbers since that is + * what comes in the mbuf structure. + */ +static void +configure_output_ports(const struct port_info *ports) +{ + int i; + if (ports->num_ports > RTE_MAX_ETHPORTS) + rte_exit(EXIT_FAILURE, "Too many ethernet ports. RTE_MAX_ETHPORTS = %u\n", + (unsigned)RTE_MAX_ETHPORTS); + for (i = 0; i < ports->num_ports - 1; i+=2){ + uint16_t p1 = ports->id[i]; + uint16_t p2 = ports->id[i+1]; + output_ports[p1] = p2; + output_ports[p2] = p1; + + configure_tx_buffer(p1, MBQ_CAPACITY); + configure_tx_buffer(p2, MBQ_CAPACITY); + + } +} + +/* + * This function performs routing of packets + * Just sends each input packet out an output port based solely on the input + * port it arrived on. + */ +static void +handle_packet(struct rte_mbuf *buf) +{ + int sent; + const uint16_t in_port = buf->port; + const uint16_t out_port = output_ports[in_port]; + struct rte_eth_dev_tx_buffer *buffer = tx_buffer[out_port]; + + sent = rte_eth_tx_buffer(out_port, client_id, buffer, buf); + if (sent) + tx_stats->tx[out_port] += sent; + +} + +/* + * Application main function - loops through + * receiving and processing packets. Never returns + */ +int +main(int argc, char *argv[]) +{ + const struct rte_memzone *mz; + struct rte_ring *rx_ring; + struct rte_mempool *mp; + struct port_info *ports; + int need_flush = 0; /* indicates whether we have unsent packets */ + int retval; + void *pkts[PKT_READ_SIZE]; + uint16_t sent; + + if ((retval = rte_eal_init(argc, argv)) < 0) + return -1; + argc -= retval; + argv += retval; + + if (parse_app_args(argc, argv) < 0) + rte_exit(EXIT_FAILURE, "Invalid command-line arguments\n"); + + if (rte_eth_dev_count_avail() == 0) + rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); + + rx_ring = rte_ring_lookup(get_rx_queue_name(client_id)); + if (rx_ring == NULL) + rte_exit(EXIT_FAILURE, "Cannot get RX ring - is server process running?\n"); + + mp = rte_mempool_lookup(PKTMBUF_POOL_NAME); + if (mp == NULL) + rte_exit(EXIT_FAILURE, "Cannot get mempool for mbufs\n"); + + mz = rte_memzone_lookup(MZ_PORT_INFO); + if (mz == NULL) + rte_exit(EXIT_FAILURE, "Cannot get port info structure\n"); + ports = mz->addr; + tx_stats = &(ports->tx_stats[client_id]); + + configure_output_ports(ports); + + RTE_LOG(INFO, APP, "Finished Process Init.\n"); + + printf("\nClient process %d handling packets\n", client_id); + printf("[Press Ctrl-C to quit ...]\n"); + + for (;;) { + uint16_t i, rx_pkts; + + rx_pkts = rte_ring_dequeue_burst(rx_ring, pkts, + PKT_READ_SIZE, NULL); + + if (rx_pkts == 0 && need_flush) { + for (i = 0; i < ports->num_ports; i++) { + uint16_t port = ports->id[i]; + + sent = rte_eth_tx_buffer_flush(port, + client_id, + tx_buffer[port]); + tx_stats->tx[port] += sent; + } + need_flush = 0; + continue; + } + + for (i = 0; i < rx_pkts; i++) + handle_packet(pkts[i]); + + need_flush = 1; + } +} diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/meson.build b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/meson.build new file mode 100644 index 000000000..69c3d3bfb --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_client/meson.build @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright 2019 Mellanox Technologies, Ltd + +# 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' + +includes += include_directories('../shared') + +allow_experimental_apis = true +sources = files( + 'client.c' +) diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/Makefile b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/Makefile new file mode 100644 index 000000000..50ebf1d7d --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/Makefile @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation + +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 $(RTE_SDK)/mk/rte.vars.mk + +ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y) +$(error This application can only operate in a linux environment, \ +please change the definition of the RTE_TARGET environment variable) +endif + +# binary name +APP = mp_server + +# all source are stored in SRCS-y +SRCS-y := main.c init.c args.c + +INC := $(sort $(wildcard *.h)) + +CFLAGS += -DALLOW_EXPERIMENTAL_API +CFLAGS += $(WERROR_FLAGS) -O3 +CFLAGS += -I$(SRCDIR)/../shared + +# for newer gcc, e.g. 4.4, no-strict-aliasing may not be necessary +# and so the next line can be removed in those cases. +EXTRA_CFLAGS += -fno-strict-aliasing + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/args.c b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/args.c new file mode 100644 index 000000000..3c2ca266b --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/args.c @@ -0,0 +1,147 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <getopt.h> +#include <stdarg.h> +#include <errno.h> + +#include <rte_memory.h> +#include <rte_ethdev.h> +#include <rte_string_fns.h> + +#include "common.h" +#include "args.h" +#include "init.h" + +/* global var for number of clients - extern in header */ +uint8_t num_clients; + +static const char *progname; + +/** + * Prints out usage information to stdout + */ +static void +usage(void) +{ + printf( + "%s [EAL options] -- -p PORTMASK -n NUM_CLIENTS [-s NUM_SOCKETS]\n" + " -p PORTMASK: hexadecimal bitmask of ports to use\n" + " -n NUM_CLIENTS: number of client processes to use\n" + , progname); +} + +/** + * The ports to be used by the application are passed in + * the form of a bitmask. This function parses the bitmask + * and places the port numbers to be used into the port[] + * array variable + */ +static int +parse_portmask(const char *portmask) +{ + char *end = NULL; + unsigned long long pm; + uint16_t id; + + if (portmask == NULL || *portmask == '\0') + return -1; + + /* convert parameter to a number and verify */ + errno = 0; + pm = strtoull(portmask, &end, 16); + if (errno != 0 || end == NULL || *end != '\0') + return -1; + + RTE_ETH_FOREACH_DEV(id) { + unsigned long msk = 1u << id; + + if ((pm & msk) == 0) + continue; + + pm &= ~msk; + ports->id[ports->num_ports++] = id; + } + + if (pm != 0) { + printf("WARNING: leftover ports in mask %#llx - ignoring\n", + pm); + } + + return 0; +} + +/** + * Take the number of clients parameter passed to the app + * and convert to a number to store in the num_clients variable + */ +static int +parse_num_clients(const char *clients) +{ + char *end = NULL; + unsigned long temp; + + if (clients == NULL || *clients == '\0') + return -1; + + temp = strtoul(clients, &end, 10); + if (end == NULL || *end != '\0' || temp == 0) + return -1; + + num_clients = (uint8_t)temp; + return 0; +} + +/** + * The application specific arguments follow the DPDK-specific + * arguments which are stripped by the DPDK init. This function + * processes these application arguments, printing usage info + * on error. + */ +int +parse_app_args(int argc, char *argv[]) +{ + int option_index, opt; + char **argvopt = argv; + static struct option lgopts[] = { /* no long options */ + {NULL, 0, 0, 0 } + }; + progname = argv[0]; + + while ((opt = getopt_long(argc, argvopt, "n:p:", lgopts, + &option_index)) != EOF){ + switch (opt){ + case 'p': + if (parse_portmask(optarg) != 0) { + usage(); + return -1; + } + break; + case 'n': + if (parse_num_clients(optarg) != 0){ + usage(); + return -1; + } + break; + default: + printf("ERROR: Unknown option '%c'\n", opt); + usage(); + return -1; + } + } + + if (ports->num_ports == 0 || num_clients == 0){ + usage(); + return -1; + } + + if (ports->num_ports % 2 != 0){ + printf("ERROR: application requires an even number of ports to use\n"); + return -1; + } + return 0; +} diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/args.h b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/args.h new file mode 100644 index 000000000..52c8cc86e --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/args.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#ifndef _ARGS_H_ +#define _ARGS_H_ + +int parse_app_args(int argc, char *argv[]); + +#endif /* ifndef _ARGS_H_ */ diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/init.c b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/init.c new file mode 100644 index 000000000..c2ec07ac6 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/init.c @@ -0,0 +1,292 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <sys/queue.h> +#include <errno.h> +#include <stdarg.h> +#include <inttypes.h> + +#include <rte_common.h> +#include <rte_memory.h> +#include <rte_memzone.h> +#include <rte_eal.h> +#include <rte_byteorder.h> +#include <rte_atomic.h> +#include <rte_launch.h> +#include <rte_per_lcore.h> +#include <rte_lcore.h> +#include <rte_branch_prediction.h> +#include <rte_debug.h> +#include <rte_ring.h> +#include <rte_log.h> +#include <rte_mempool.h> +#include <rte_memcpy.h> +#include <rte_mbuf.h> +#include <rte_interrupts.h> +#include <rte_ether.h> +#include <rte_ethdev.h> +#include <rte_malloc.h> +#include <rte_string_fns.h> +#include <rte_cycles.h> + +#include "common.h" +#include "args.h" +#include "init.h" + +#define MBUF_CACHE_SIZE 512 + +#define RTE_MP_RX_DESC_DEFAULT 1024 +#define RTE_MP_TX_DESC_DEFAULT 1024 +#define CLIENT_QUEUE_RINGSIZE 128 + +#define NO_FLAGS 0 + +/* The mbuf pool for packet rx */ +struct rte_mempool *pktmbuf_pool; + +/* array of info/queues for clients */ +struct client *clients = NULL; + +/* the port details */ +struct port_info *ports; + +/** + * Initialise the mbuf pool for packet reception for the NIC, and any other + * buffer pools needed by the app - currently none. + */ +static int +init_mbuf_pools(void) +{ + const unsigned int num_mbufs_server = + RTE_MP_RX_DESC_DEFAULT * ports->num_ports; + const unsigned int num_mbufs_client = + num_clients * (CLIENT_QUEUE_RINGSIZE + + RTE_MP_TX_DESC_DEFAULT * ports->num_ports); + const unsigned int num_mbufs_mp_cache = + (num_clients + 1) * MBUF_CACHE_SIZE; + const unsigned int num_mbufs = + num_mbufs_server + num_mbufs_client + num_mbufs_mp_cache; + + /* don't pass single-producer/single-consumer flags to mbuf create as it + * seems faster to use a cache instead */ + printf("Creating mbuf pool '%s' [%u mbufs] ...\n", + PKTMBUF_POOL_NAME, num_mbufs); + pktmbuf_pool = rte_pktmbuf_pool_create(PKTMBUF_POOL_NAME, num_mbufs, + MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); + + return pktmbuf_pool == NULL; /* 0 on success */ +} + +/** + * Initialise an individual port: + * - configure number of rx and tx rings + * - set up each rx ring, to pull from the main mbuf pool + * - set up each tx ring + * - start the port and report its status to stdout + */ +static int +init_port(uint16_t port_num) +{ + /* for port configuration all features are off by default */ + const struct rte_eth_conf port_conf = { + .rxmode = { + .mq_mode = ETH_MQ_RX_RSS + } + }; + const uint16_t rx_rings = 1, tx_rings = num_clients; + uint16_t rx_ring_size = RTE_MP_RX_DESC_DEFAULT; + uint16_t tx_ring_size = RTE_MP_TX_DESC_DEFAULT; + + uint16_t q; + int retval; + + printf("Port %u init ... ", port_num); + fflush(stdout); + + /* Standard DPDK port initialisation - config port, then set up + * rx and tx rings */ + if ((retval = rte_eth_dev_configure(port_num, rx_rings, tx_rings, + &port_conf)) != 0) + return retval; + + retval = rte_eth_dev_adjust_nb_rx_tx_desc(port_num, &rx_ring_size, + &tx_ring_size); + if (retval != 0) + return retval; + + for (q = 0; q < rx_rings; q++) { + retval = rte_eth_rx_queue_setup(port_num, q, rx_ring_size, + rte_eth_dev_socket_id(port_num), + NULL, pktmbuf_pool); + if (retval < 0) return retval; + } + + for ( q = 0; q < tx_rings; q ++ ) { + retval = rte_eth_tx_queue_setup(port_num, q, tx_ring_size, + rte_eth_dev_socket_id(port_num), + NULL); + if (retval < 0) return retval; + } + + retval = rte_eth_promiscuous_enable(port_num); + if (retval < 0) + return retval; + + retval = rte_eth_dev_start(port_num); + if (retval < 0) return retval; + + printf( "done: \n"); + + return 0; +} + +/** + * Set up the DPDK rings which will be used to pass packets, via + * pointers, between the multi-process server and client processes. + * Each client needs one RX queue. + */ +static int +init_shm_rings(void) +{ + unsigned i; + unsigned socket_id; + const char * q_name; + const unsigned ringsize = CLIENT_QUEUE_RINGSIZE; + + clients = rte_malloc("client details", + sizeof(*clients) * num_clients, 0); + if (clients == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate memory for client program details\n"); + + for (i = 0; i < num_clients; i++) { + /* Create an RX queue for each client */ + socket_id = rte_socket_id(); + q_name = get_rx_queue_name(i); + clients[i].rx_q = rte_ring_create(q_name, + ringsize, socket_id, + RING_F_SP_ENQ | RING_F_SC_DEQ ); /* single prod, single cons */ + if (clients[i].rx_q == NULL) + rte_exit(EXIT_FAILURE, "Cannot create rx ring queue for client %u\n", i); + } + return 0; +} + +/* Check the link status of all ports in up to 9s, and print them finally */ +static void +check_all_ports_link_status(uint16_t port_num, uint32_t port_mask) +{ +#define CHECK_INTERVAL 100 /* 100ms */ +#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ + uint16_t portid; + uint8_t count, all_ports_up, print_flag = 0; + struct rte_eth_link link; + int ret; + + printf("\nChecking link status"); + fflush(stdout); + for (count = 0; count <= MAX_CHECK_TIME; count++) { + all_ports_up = 1; + for (portid = 0; portid < port_num; portid++) { + if ((port_mask & (1 << ports->id[portid])) == 0) + continue; + memset(&link, 0, sizeof(link)); + ret = rte_eth_link_get_nowait(ports->id[portid], &link); + if (ret < 0) { + all_ports_up = 0; + if (print_flag == 1) + printf("Port %u link get failed: %s\n", + portid, rte_strerror(-ret)); + continue; + } + /* print link status if flag set */ + if (print_flag == 1) { + if (link.link_status) + printf("Port %d Link Up - speed %u " + "Mbps - %s\n", ports->id[portid], + (unsigned)link.link_speed, + (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? + ("full-duplex") : ("half-duplex")); + else + printf("Port %d Link Down\n", + (uint8_t)ports->id[portid]); + continue; + } + /* clear all_ports_up flag if any link down */ + if (link.link_status == ETH_LINK_DOWN) { + all_ports_up = 0; + break; + } + } + /* after finally printing all link status, get out */ + if (print_flag == 1) + break; + + if (all_ports_up == 0) { + printf("."); + fflush(stdout); + rte_delay_ms(CHECK_INTERVAL); + } + + /* set the print_flag if all ports up or timeout */ + if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { + print_flag = 1; + printf("done\n"); + } + } +} + +/** + * Main init function for the multi-process server app, + * calls subfunctions to do each stage of the initialisation. + */ +int +init(int argc, char *argv[]) +{ + int retval; + const struct rte_memzone *mz; + uint16_t i; + + /* init EAL, parsing EAL args */ + retval = rte_eal_init(argc, argv); + if (retval < 0) + return -1; + argc -= retval; + argv += retval; + + /* set up array for port data */ + mz = rte_memzone_reserve(MZ_PORT_INFO, sizeof(*ports), + rte_socket_id(), NO_FLAGS); + if (mz == NULL) + rte_exit(EXIT_FAILURE, "Cannot reserve memory zone for port information\n"); + memset(mz->addr, 0, sizeof(*ports)); + ports = mz->addr; + + /* parse additional, application arguments */ + retval = parse_app_args(argc, argv); + if (retval != 0) + return -1; + + /* initialise mbuf pools */ + retval = init_mbuf_pools(); + if (retval != 0) + rte_exit(EXIT_FAILURE, "Cannot create needed mbuf pools\n"); + + /* now initialise the ports we will use */ + for (i = 0; i < ports->num_ports; i++) { + retval = init_port(ports->id[i]); + if (retval != 0) + rte_exit(EXIT_FAILURE, "Cannot initialise port %u\n", + (unsigned)i); + } + + check_all_ports_link_status(ports->num_ports, (~0x0)); + + /* initialise the client queues/rings for inter-eu comms */ + init_shm_rings(); + + return 0; +} diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/init.h b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/init.h new file mode 100644 index 000000000..de5049c02 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/init.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#ifndef _INIT_H_ +#define _INIT_H_ + +/* + * #include <rte_ring.h> + * #include "args.h" + */ + +/* + * Define a client structure with all needed info, including + * stats from the clients. + */ +struct client { + struct rte_ring *rx_q; + unsigned client_id; + /* these stats hold how many packets the client will actually receive, + * and how many packets were dropped because the client's queue was full. + * The port-info stats, in contrast, record how many packets were received + * or transmitted on an actual NIC port. + */ + struct { + volatile uint64_t rx; + volatile uint64_t rx_drop; + } stats; +}; + +extern struct client *clients; + +/* the shared port information: port numbers, rx and tx stats etc. */ +extern struct port_info *ports; + +extern struct rte_mempool *pktmbuf_pool; +extern uint8_t num_clients; +extern unsigned num_sockets; +extern struct port_info *ports; + +int init(int argc, char *argv[]); + +#endif /* ifndef _INIT_H_ */ diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/main.c b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/main.c new file mode 100644 index 000000000..280dab867 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/main.c @@ -0,0 +1,305 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <stdint.h> +#include <stdarg.h> +#include <inttypes.h> +#include <sys/queue.h> +#include <errno.h> +#include <signal.h> + +#include <rte_common.h> +#include <rte_memory.h> +#include <rte_eal.h> +#include <rte_launch.h> +#include <rte_per_lcore.h> +#include <rte_lcore.h> +#include <rte_branch_prediction.h> +#include <rte_atomic.h> +#include <rte_ring.h> +#include <rte_log.h> +#include <rte_debug.h> +#include <rte_mempool.h> +#include <rte_memcpy.h> +#include <rte_mbuf.h> +#include <rte_ether.h> +#include <rte_interrupts.h> +#include <rte_ethdev.h> +#include <rte_byteorder.h> +#include <rte_malloc.h> +#include <rte_string_fns.h> + +#include "common.h" +#include "args.h" +#include "init.h" + +/* + * When doing reads from the NIC or the client queues, + * use this batch size + */ +#define PACKET_READ_SIZE 32 + +/* + * Local buffers to put packets in, used to send packets in bursts to the + * clients + */ +struct client_rx_buf { + struct rte_mbuf *buffer[PACKET_READ_SIZE]; + uint16_t count; +}; + +/* One buffer per client rx queue - dynamically allocate array */ +static struct client_rx_buf *cl_rx_buf; + +static const char * +get_printable_mac_addr(uint16_t port) +{ + static const char err_address[] = "00:00:00:00:00:00"; + static char addresses[RTE_MAX_ETHPORTS][sizeof(err_address)]; + int ret; + + if (unlikely(port >= RTE_MAX_ETHPORTS)) + return err_address; + if (unlikely(addresses[port][0]=='\0')){ + struct rte_ether_addr mac; + ret = rte_eth_macaddr_get(port, &mac); + if (ret != 0) { + printf("Failed to get MAC address (port %u): %s\n", + port, rte_strerror(-ret)); + return err_address; + } + snprintf(addresses[port], sizeof(addresses[port]), + "%02x:%02x:%02x:%02x:%02x:%02x\n", + mac.addr_bytes[0], mac.addr_bytes[1], mac.addr_bytes[2], + mac.addr_bytes[3], mac.addr_bytes[4], mac.addr_bytes[5]); + } + return addresses[port]; +} + +/* + * This function displays the recorded statistics for each port + * and for each client. It uses ANSI terminal codes to clear + * screen when called. It is called from a single non-master + * thread in the server process, when the process is run with more + * than one lcore enabled. + */ +static void +do_stats_display(void) +{ + unsigned i, j; + const char clr[] = { 27, '[', '2', 'J', '\0' }; + const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' }; + uint64_t port_tx[RTE_MAX_ETHPORTS], port_tx_drop[RTE_MAX_ETHPORTS]; + uint64_t client_tx[MAX_CLIENTS], client_tx_drop[MAX_CLIENTS]; + + /* to get TX stats, we need to do some summing calculations */ + memset(port_tx, 0, sizeof(port_tx)); + memset(port_tx_drop, 0, sizeof(port_tx_drop)); + memset(client_tx, 0, sizeof(client_tx)); + memset(client_tx_drop, 0, sizeof(client_tx_drop)); + + for (i = 0; i < num_clients; i++){ + const volatile struct tx_stats *tx = &ports->tx_stats[i]; + for (j = 0; j < ports->num_ports; j++){ + /* assign to local variables here, save re-reading volatile vars */ + const uint64_t tx_val = tx->tx[ports->id[j]]; + const uint64_t drop_val = tx->tx_drop[ports->id[j]]; + port_tx[j] += tx_val; + port_tx_drop[j] += drop_val; + client_tx[i] += tx_val; + client_tx_drop[i] += drop_val; + } + } + + /* Clear screen and move to top left */ + printf("%s%s", clr, topLeft); + + printf("PORTS\n"); + printf("-----\n"); + for (i = 0; i < ports->num_ports; i++) + printf("Port %u: '%s'\t", (unsigned)ports->id[i], + get_printable_mac_addr(ports->id[i])); + printf("\n\n"); + for (i = 0; i < ports->num_ports; i++){ + printf("Port %u - rx: %9"PRIu64"\t" + "tx: %9"PRIu64"\n", + (unsigned)ports->id[i], ports->rx_stats.rx[i], + port_tx[i]); + } + + printf("\nCLIENTS\n"); + printf("-------\n"); + for (i = 0; i < num_clients; i++){ + const unsigned long long rx = clients[i].stats.rx; + const unsigned long long rx_drop = clients[i].stats.rx_drop; + printf("Client %2u - rx: %9llu, rx_drop: %9llu\n" + " tx: %9"PRIu64", tx_drop: %9"PRIu64"\n", + i, rx, rx_drop, client_tx[i], client_tx_drop[i]); + } + + printf("\n"); +} + +/* + * The function called from each non-master lcore used by the process. + * The test_and_set function is used to randomly pick a single lcore on which + * the code to display the statistics will run. Otherwise, the code just + * repeatedly sleeps. + */ +static int +sleep_lcore(__rte_unused void *dummy) +{ + /* Used to pick a display thread - static, so zero-initialised */ + static rte_atomic32_t display_stats; + + /* Only one core should display stats */ + if (rte_atomic32_test_and_set(&display_stats)) { + const unsigned sleeptime = 1; + printf("Core %u displaying statistics\n", rte_lcore_id()); + + /* Longer initial pause so above printf is seen */ + sleep(sleeptime * 3); + + /* Loop forever: sleep always returns 0 or <= param */ + while (sleep(sleeptime) <= sleeptime) + do_stats_display(); + } + return 0; +} + +/* + * Function to set all the client statistic values to zero. + * Called at program startup. + */ +static void +clear_stats(void) +{ + unsigned i; + + for (i = 0; i < num_clients; i++) + clients[i].stats.rx = clients[i].stats.rx_drop = 0; +} + +/* + * send a burst of traffic to a client, assuming there are packets + * available to be sent to this client + */ +static void +flush_rx_queue(uint16_t client) +{ + uint16_t j; + struct client *cl; + + if (cl_rx_buf[client].count == 0) + return; + + cl = &clients[client]; + if (rte_ring_enqueue_bulk(cl->rx_q, (void **)cl_rx_buf[client].buffer, + cl_rx_buf[client].count, NULL) == 0){ + for (j = 0; j < cl_rx_buf[client].count; j++) + rte_pktmbuf_free(cl_rx_buf[client].buffer[j]); + cl->stats.rx_drop += cl_rx_buf[client].count; + } + else + cl->stats.rx += cl_rx_buf[client].count; + + cl_rx_buf[client].count = 0; +} + +/* + * marks a packet down to be sent to a particular client process + */ +static inline void +enqueue_rx_packet(uint8_t client, struct rte_mbuf *buf) +{ + cl_rx_buf[client].buffer[cl_rx_buf[client].count++] = buf; +} + +/* + * This function takes a group of packets and routes them + * individually to the client process. Very simply round-robins the packets + * without checking any of the packet contents. + */ +static void +process_packets(uint32_t port_num __rte_unused, + struct rte_mbuf *pkts[], uint16_t rx_count) +{ + uint16_t i; + uint8_t client = 0; + + for (i = 0; i < rx_count; i++) { + enqueue_rx_packet(client, pkts[i]); + + if (++client == num_clients) + client = 0; + } + + for (i = 0; i < num_clients; i++) + flush_rx_queue(i); +} + +/* + * Function called by the master lcore of the DPDK process. + */ +static void +do_packet_forwarding(void) +{ + unsigned port_num = 0; /* indexes the port[] array */ + + for (;;) { + struct rte_mbuf *buf[PACKET_READ_SIZE]; + uint16_t rx_count; + + /* read a port */ + rx_count = rte_eth_rx_burst(ports->id[port_num], 0, \ + buf, PACKET_READ_SIZE); + ports->rx_stats.rx[port_num] += rx_count; + + /* Now process the NIC packets read */ + if (likely(rx_count > 0)) + process_packets(port_num, buf, rx_count); + + /* move to next port */ + if (++port_num == ports->num_ports) + port_num = 0; + } +} + +static void +signal_handler(int signal) +{ + uint16_t port_id; + + if (signal == SIGINT) + RTE_ETH_FOREACH_DEV(port_id) { + rte_eth_dev_stop(port_id); + rte_eth_dev_close(port_id); + } + exit(0); +} + +int +main(int argc, char *argv[]) +{ + signal(SIGINT, signal_handler); + /* initialise the system */ + if (init(argc, argv) < 0 ) + return -1; + RTE_LOG(INFO, APP, "Finished Process Init.\n"); + + cl_rx_buf = calloc(num_clients, sizeof(cl_rx_buf[0])); + + /* clear statistics */ + clear_stats(); + + /* put all other cores to sleep bar master */ + rte_eal_mp_remote_launch(sleep_lcore, NULL, SKIP_MASTER); + + do_packet_forwarding(); + return 0; +} diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/meson.build b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/meson.build new file mode 100644 index 000000000..0ef6424f4 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/mp_server/meson.build @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright 2019 Mellanox Technologies, Ltd + +# 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' + +includes += include_directories('../shared') + +allow_experimental_apis = true +sources = files( + 'args.c', 'init.c', 'main.c' +) diff --git a/src/spdk/dpdk/examples/multi_process/client_server_mp/shared/common.h b/src/spdk/dpdk/examples/multi_process/client_server_mp/shared/common.h new file mode 100644 index 000000000..6dd43fcac --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/client_server_mp/shared/common.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#ifndef _COMMON_H_ +#define _COMMON_H_ + +#define MAX_CLIENTS 16 + +/* + * Shared port info, including statistics information for display by server. + * Structure will be put in a memzone. + * - All port id values share one cache line as this data will be read-only + * during operation. + * - All rx statistic values share cache lines, as this data is written only + * by the server process. (rare reads by stats display) + * - The tx statistics have values for all ports per cache line, but the stats + * themselves are written by the clients, so we have a distinct set, on different + * cache lines for each client to use. + */ +struct rx_stats{ + uint64_t rx[RTE_MAX_ETHPORTS]; +} __rte_cache_aligned; + +struct tx_stats{ + uint64_t tx[RTE_MAX_ETHPORTS]; + uint64_t tx_drop[RTE_MAX_ETHPORTS]; +} __rte_cache_aligned; + +struct port_info { + uint16_t num_ports; + uint16_t id[RTE_MAX_ETHPORTS]; + volatile struct rx_stats rx_stats; + volatile struct tx_stats tx_stats[MAX_CLIENTS]; +}; + +/* define common names for structures shared between server and client */ +#define MP_CLIENT_RXQ_NAME "MProc_Client_%u_RX" +#define PKTMBUF_POOL_NAME "MProc_pktmbuf_pool" +#define MZ_PORT_INFO "MProc_port_info" + +/* + * Given the rx queue name template above, get the queue name + */ +static inline const char * +get_rx_queue_name(unsigned id) +{ + /* buffer for return value. Size calculated by %u being replaced + * by maximum 3 digits (plus an extra byte for safety) */ + static char buffer[sizeof(MP_CLIENT_RXQ_NAME) + 2]; + + snprintf(buffer, sizeof(buffer), MP_CLIENT_RXQ_NAME, id); + return buffer; +} + +#define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1 + +#endif diff --git a/src/spdk/dpdk/examples/multi_process/hotplug_mp/Makefile b/src/spdk/dpdk/examples/multi_process/hotplug_mp/Makefile new file mode 100644 index 000000000..1fd7aa085 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/hotplug_mp/Makefile @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2018 Intel Corporation + +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 + +# binary name +APP = hotplug_mp + +# all source are stored in SRCS-y +SRCS-y := main.c commands.c + +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) +CFLAGS += -DALLOW_EXPERIMENTAL_API + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/src/spdk/dpdk/examples/multi_process/hotplug_mp/commands.c b/src/spdk/dpdk/examples/multi_process/hotplug_mp/commands.c new file mode 100644 index 000000000..a8a39d07f --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/hotplug_mp/commands.c @@ -0,0 +1,214 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Intel Corporation. + */ + +#include <cmdline_rdline.h> +#include <cmdline_parse.h> +#include <cmdline_parse_ipaddr.h> +#include <cmdline_parse_num.h> +#include <cmdline_parse_string.h> +#include <cmdline.h> +#include <rte_ethdev.h> + +/**********************************************************/ + +struct cmd_help_result { + cmdline_fixed_string_t help; +}; + +static void cmd_help_parsed(__rte_unused void *parsed_result, + struct cmdline *cl, + __rte_unused void *data) +{ + cmdline_printf(cl, + "commands:\n" + "- attach <devargs>\n" + "- detach <devargs>\n" + "- list\n\n"); +} + +cmdline_parse_token_string_t cmd_help_help = + TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help"); + +cmdline_parse_inst_t cmd_help = { + .f = cmd_help_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "show help", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_help_help, + NULL, + }, +}; + +/**********************************************************/ + +struct cmd_quit_result { + cmdline_fixed_string_t quit; +}; + +static void cmd_quit_parsed(__rte_unused void *parsed_result, + struct cmdline *cl, + __rte_unused void *data) +{ + cmdline_quit(cl); +} + +cmdline_parse_token_string_t cmd_quit_quit = + TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit"); + +cmdline_parse_inst_t cmd_quit = { + .f = cmd_quit_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "quit", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_quit_quit, + NULL, + }, +}; + +/**********************************************************/ + +struct cmd_list_result { + cmdline_fixed_string_t list; +}; + +static void cmd_list_parsed(__rte_unused void *parsed_result, + struct cmdline *cl, + __rte_unused void *data) +{ + uint16_t port_id; + char dev_name[RTE_DEV_NAME_MAX_LEN]; + + cmdline_printf(cl, "list all etherdev\n"); + + RTE_ETH_FOREACH_DEV(port_id) { + rte_eth_dev_get_name_by_port(port_id, dev_name); + if (strlen(dev_name) > 0) + cmdline_printf(cl, "%d\t%s\n", port_id, dev_name); + else + printf("empty dev_name is not expected!\n"); + } +} + +cmdline_parse_token_string_t cmd_list_list = + TOKEN_STRING_INITIALIZER(struct cmd_list_result, list, "list"); + +cmdline_parse_inst_t cmd_list = { + .f = cmd_list_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "list all devices", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_list_list, + NULL, + }, +}; + +/**********************************************************/ + +struct cmd_dev_attach_result { + cmdline_fixed_string_t attach; + cmdline_fixed_string_t devargs; +}; + +static void cmd_dev_attach_parsed(void *parsed_result, + struct cmdline *cl, + __rte_unused void *data) +{ + struct cmd_dev_attach_result *res = parsed_result; + struct rte_devargs da; + + memset(&da, 0, sizeof(da)); + + if (rte_devargs_parsef(&da, "%s", res->devargs)) { + cmdline_printf(cl, "cannot parse devargs\n"); + if (da.args) + free(da.args); + return; + } + + if (!rte_eal_hotplug_add(da.bus->name, da.name, da.args)) + cmdline_printf(cl, "attached device %s\n", da.name); + else + cmdline_printf(cl, "failed to attached device %s\n", + da.name); +} + +cmdline_parse_token_string_t cmd_dev_attach_attach = + TOKEN_STRING_INITIALIZER(struct cmd_dev_attach_result, attach, + "attach"); +cmdline_parse_token_string_t cmd_dev_attach_devargs = + TOKEN_STRING_INITIALIZER(struct cmd_dev_attach_result, devargs, NULL); + +cmdline_parse_inst_t cmd_attach_device = { + .f = cmd_dev_attach_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "attach a device", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_dev_attach_attach, + (void *)&cmd_dev_attach_devargs, + NULL, + }, +}; + +/**********************************************************/ + +struct cmd_dev_detach_result { + cmdline_fixed_string_t detach; + cmdline_fixed_string_t devargs; +}; + +static void cmd_dev_detach_parsed(void *parsed_result, + struct cmdline *cl, + __rte_unused void *data) +{ + struct cmd_dev_detach_result *res = parsed_result; + struct rte_devargs da; + + memset(&da, 0, sizeof(da)); + + if (rte_devargs_parsef(&da, "%s", res->devargs)) { + cmdline_printf(cl, "cannot parse devargs\n"); + if (da.args) + free(da.args); + return; + } + + printf("detaching...\n"); + if (!rte_eal_hotplug_remove(da.bus->name, da.name)) + cmdline_printf(cl, "detached device %s\n", + da.name); + else + cmdline_printf(cl, "failed to dettach device %s\n", + da.name); +} + +cmdline_parse_token_string_t cmd_dev_detach_detach = + TOKEN_STRING_INITIALIZER(struct cmd_dev_detach_result, detach, + "detach"); + +cmdline_parse_token_string_t cmd_dev_detach_devargs = + TOKEN_STRING_INITIALIZER(struct cmd_dev_detach_result, devargs, NULL); + +cmdline_parse_inst_t cmd_detach_device = { + .f = cmd_dev_detach_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "detach a device", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_dev_detach_detach, + (void *)&cmd_dev_detach_devargs, + NULL, + }, +}; + +/**********************************************************/ +/**********************************************************/ +/****** CONTEXT (list of instruction) */ + +cmdline_parse_ctx_t main_ctx[] = { + (cmdline_parse_inst_t *)&cmd_help, + (cmdline_parse_inst_t *)&cmd_quit, + (cmdline_parse_inst_t *)&cmd_list, + (cmdline_parse_inst_t *)&cmd_attach_device, + (cmdline_parse_inst_t *)&cmd_detach_device, + NULL, +}; diff --git a/src/spdk/dpdk/examples/multi_process/hotplug_mp/commands.h b/src/spdk/dpdk/examples/multi_process/hotplug_mp/commands.h new file mode 100644 index 000000000..afcf177db --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/hotplug_mp/commands.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Intel Corporation + */ + +#ifndef _COMMANDS_H_ +#define _COMMANDS_H_ + +extern cmdline_parse_ctx_t main_ctx[]; + +#endif /* _COMMANDS_H_ */ diff --git a/src/spdk/dpdk/examples/multi_process/hotplug_mp/main.c b/src/spdk/dpdk/examples/multi_process/hotplug_mp/main.c new file mode 100644 index 000000000..d66858078 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/hotplug_mp/main.c @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Intel Corporation + */ + +#include <stdio.h> +#include <string.h> +#include <stdint.h> +#include <errno.h> +#include <termios.h> +#include <sys/queue.h> + +#include <cmdline_rdline.h> +#include <cmdline_parse.h> +#include <cmdline_socket.h> +#include <cmdline.h> + +#include <rte_memory.h> +#include <rte_eal.h> +#include <rte_debug.h> + +#include "commands.h" + +int main(int argc, char **argv) +{ + int ret; + struct cmdline *cl; + + ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_panic("Cannot init EAL\n"); + + cl = cmdline_stdin_new(main_ctx, "example> "); + if (cl == NULL) + rte_panic("Cannot create cmdline instance\n"); + cmdline_interact(cl); + cmdline_stdin_exit(cl); + + rte_eal_cleanup(); + + return 0; +} diff --git a/src/spdk/dpdk/examples/multi_process/hotplug_mp/meson.build b/src/spdk/dpdk/examples/multi_process/hotplug_mp/meson.build new file mode 100644 index 000000000..f82f4d48a --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/hotplug_mp/meson.build @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright 2019 Mellanox Technologies, Ltd + +# 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 +sources = files( + 'commands.c', 'main.c' +) diff --git a/src/spdk/dpdk/examples/multi_process/simple_mp/Makefile b/src/spdk/dpdk/examples/multi_process/simple_mp/Makefile new file mode 100644 index 000000000..f88b499bd --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/simple_mp/Makefile @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation + +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 + +# binary name +APP = simple_mp + +# all source are stored in SRCS-y +SRCS-y := main.c mp_commands.c + +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) +CFLAGS += -DALLOW_EXPERIMENTAL_API + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/src/spdk/dpdk/examples/multi_process/simple_mp/main.c b/src/spdk/dpdk/examples/multi_process/simple_mp/main.c new file mode 100644 index 000000000..fc7952846 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/simple_mp/main.c @@ -0,0 +1,125 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +/* + * This sample application is a simple multi-process application which + * demostrates sharing of queues and memory pools between processes, and + * using those queues/pools for communication between the processes. + * + * Application is designed to run with two processes, a primary and a + * secondary, and each accepts commands on the commandline, the most + * important of which is "send", which just sends a string to the other + * process. + */ + +#include <stdio.h> +#include <string.h> +#include <stdint.h> +#include <inttypes.h> +#include <stdarg.h> +#include <errno.h> +#include <unistd.h> +#include <termios.h> +#include <sys/queue.h> + +#include <rte_common.h> +#include <rte_memory.h> +#include <rte_launch.h> +#include <rte_eal.h> +#include <rte_per_lcore.h> +#include <rte_lcore.h> +#include <rte_debug.h> +#include <rte_atomic.h> +#include <rte_branch_prediction.h> +#include <rte_ring.h> +#include <rte_log.h> +#include <rte_mempool.h> +#include <cmdline_rdline.h> +#include <cmdline_parse.h> +#include <cmdline_parse_string.h> +#include <cmdline_socket.h> +#include <cmdline.h> +#include "mp_commands.h" + +#define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1 + +static const char *_MSG_POOL = "MSG_POOL"; +static const char *_SEC_2_PRI = "SEC_2_PRI"; +static const char *_PRI_2_SEC = "PRI_2_SEC"; + +struct rte_ring *send_ring, *recv_ring; +struct rte_mempool *message_pool; +volatile int quit = 0; + +static int +lcore_recv(__rte_unused void *arg) +{ + unsigned lcore_id = rte_lcore_id(); + + printf("Starting core %u\n", lcore_id); + while (!quit){ + void *msg; + if (rte_ring_dequeue(recv_ring, &msg) < 0){ + usleep(5); + continue; + } + printf("core %u: Received '%s'\n", lcore_id, (char *)msg); + rte_mempool_put(message_pool, msg); + } + + return 0; +} + +int +main(int argc, char **argv) +{ + const unsigned flags = 0; + const unsigned ring_size = 64; + const unsigned pool_size = 1024; + const unsigned pool_cache = 32; + const unsigned priv_data_sz = 0; + + int ret; + unsigned lcore_id; + + ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot init EAL\n"); + + if (rte_eal_process_type() == RTE_PROC_PRIMARY){ + send_ring = rte_ring_create(_PRI_2_SEC, ring_size, rte_socket_id(), flags); + recv_ring = rte_ring_create(_SEC_2_PRI, ring_size, rte_socket_id(), flags); + message_pool = rte_mempool_create(_MSG_POOL, pool_size, + STR_TOKEN_SIZE, pool_cache, priv_data_sz, + NULL, NULL, NULL, NULL, + rte_socket_id(), flags); + } else { + recv_ring = rte_ring_lookup(_PRI_2_SEC); + send_ring = rte_ring_lookup(_SEC_2_PRI); + message_pool = rte_mempool_lookup(_MSG_POOL); + } + if (send_ring == NULL) + rte_exit(EXIT_FAILURE, "Problem getting sending ring\n"); + if (recv_ring == NULL) + rte_exit(EXIT_FAILURE, "Problem getting receiving ring\n"); + if (message_pool == NULL) + rte_exit(EXIT_FAILURE, "Problem getting message pool\n"); + + RTE_LOG(INFO, APP, "Finished Process Init.\n"); + + /* call lcore_recv() on every slave lcore */ + RTE_LCORE_FOREACH_SLAVE(lcore_id) { + rte_eal_remote_launch(lcore_recv, NULL, lcore_id); + } + + /* call cmd prompt on master lcore */ + struct cmdline *cl = cmdline_stdin_new(simple_mp_ctx, "\nsimple_mp > "); + if (cl == NULL) + rte_exit(EXIT_FAILURE, "Cannot create cmdline instance\n"); + cmdline_interact(cl); + cmdline_stdin_exit(cl); + + rte_eal_mp_wait_lcore(); + return 0; +} diff --git a/src/spdk/dpdk/examples/multi_process/simple_mp/meson.build b/src/spdk/dpdk/examples/multi_process/simple_mp/meson.build new file mode 100644 index 000000000..cb02c65a6 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/simple_mp/meson.build @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright 2019 Mellanox Technologies, Ltd + +# 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 +sources = files( + 'mp_commands.c', 'main.c' +) diff --git a/src/spdk/dpdk/examples/multi_process/simple_mp/mp_commands.c b/src/spdk/dpdk/examples/multi_process/simple_mp/mp_commands.c new file mode 100644 index 000000000..311d0fe77 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/simple_mp/mp_commands.c @@ -0,0 +1,136 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ +#include <stdint.h> +#include <string.h> +#include <stdlib.h> +#include <stdarg.h> +#include <inttypes.h> +#include <stdio.h> +#include <termios.h> +#include <errno.h> +#include <sys/queue.h> + +#include <rte_common.h> +#include <rte_memory.h> +#include <rte_eal.h> +#include <rte_atomic.h> +#include <rte_branch_prediction.h> +#include <rte_launch.h> +#include <rte_log.h> +#include <rte_per_lcore.h> +#include <rte_lcore.h> +#include <rte_ring.h> +#include <rte_debug.h> +#include <rte_mempool.h> +#include <rte_string_fns.h> + +#include <cmdline_rdline.h> +#include <cmdline_parse.h> +#include <cmdline_parse_string.h> +#include <cmdline_socket.h> +#include <cmdline.h> +#include "mp_commands.h" + +/**********************************************************/ + +struct cmd_send_result { + cmdline_fixed_string_t action; + cmdline_fixed_string_t message; +}; + +static void cmd_send_parsed(void *parsed_result, + __rte_unused struct cmdline *cl, + __rte_unused void *data) +{ + void *msg = NULL; + struct cmd_send_result *res = parsed_result; + + if (rte_mempool_get(message_pool, &msg) < 0) + rte_panic("Failed to get message buffer\n"); + strlcpy((char *)msg, res->message, STR_TOKEN_SIZE); + if (rte_ring_enqueue(send_ring, msg) < 0) { + printf("Failed to send message - message discarded\n"); + rte_mempool_put(message_pool, msg); + } +} + +cmdline_parse_token_string_t cmd_send_action = + TOKEN_STRING_INITIALIZER(struct cmd_send_result, action, "send"); +cmdline_parse_token_string_t cmd_send_message = + TOKEN_STRING_INITIALIZER(struct cmd_send_result, message, NULL); + +cmdline_parse_inst_t cmd_send = { + .f = cmd_send_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "send a string to another process", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_send_action, + (void *)&cmd_send_message, + NULL, + }, +}; + +/**********************************************************/ + +struct cmd_quit_result { + cmdline_fixed_string_t quit; +}; + +static void cmd_quit_parsed(__rte_unused void *parsed_result, + struct cmdline *cl, + __rte_unused void *data) +{ + quit = 1; + cmdline_quit(cl); +} + +cmdline_parse_token_string_t cmd_quit_quit = + TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit"); + +cmdline_parse_inst_t cmd_quit = { + .f = cmd_quit_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "close the application", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_quit_quit, + NULL, + }, +}; + +/**********************************************************/ + +struct cmd_help_result { + cmdline_fixed_string_t help; +}; + +static void cmd_help_parsed(__rte_unused void *parsed_result, + struct cmdline *cl, + __rte_unused void *data) +{ + cmdline_printf(cl, "Simple demo example of multi-process in RTE\n\n" + "This is a readline-like interface that can be used to\n" + "send commands to the simple app. Commands supported are:\n\n" + "- send [string]\n" "- help\n" "- quit\n\n"); +} + +cmdline_parse_token_string_t cmd_help_help = + TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help"); + +cmdline_parse_inst_t cmd_help = { + .f = cmd_help_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "show help", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_help_help, + NULL, + }, +}; + +/****** CONTEXT (list of instruction) */ +cmdline_parse_ctx_t simple_mp_ctx[] = { + (cmdline_parse_inst_t *)&cmd_send, + (cmdline_parse_inst_t *)&cmd_quit, + (cmdline_parse_inst_t *)&cmd_help, + NULL, +}; diff --git a/src/spdk/dpdk/examples/multi_process/simple_mp/mp_commands.h b/src/spdk/dpdk/examples/multi_process/simple_mp/mp_commands.h new file mode 100644 index 000000000..5d67413e7 --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/simple_mp/mp_commands.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#ifndef _SIMPLE_MP_COMMANDS_H_ +#define _SIMPLE_MP_COMMANDS_H_ + +extern struct rte_ring *send_ring; +extern struct rte_mempool *message_pool; +extern volatile int quit; + +extern cmdline_parse_ctx_t simple_mp_ctx[]; + +#endif /* _SIMPLE_MP_COMMANDS_H_ */ diff --git a/src/spdk/dpdk/examples/multi_process/symmetric_mp/Makefile b/src/spdk/dpdk/examples/multi_process/symmetric_mp/Makefile new file mode 100644 index 000000000..b7544489b --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/symmetric_mp/Makefile @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation + +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 + +# binary name +APP = symmetric_mp + +# all source are stored in SRCS-y +SRCS-y := main.c + +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) +CFLAGS += -DALLOW_EXPERIMENTAL_API + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/src/spdk/dpdk/examples/multi_process/symmetric_mp/main.c b/src/spdk/dpdk/examples/multi_process/symmetric_mp/main.c new file mode 100644 index 000000000..9a16e198c --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/symmetric_mp/main.c @@ -0,0 +1,479 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +/* + * Sample application demostrating how to do packet I/O in a multi-process + * environment. The same code can be run as a primary process and as a + * secondary process, just with a different proc-id parameter in each case + * (apart from the EAL flag to indicate a secondary process). + * + * Each process will read from the same ports, given by the port-mask + * parameter, which should be the same in each case, just using a different + * queue per port as determined by the proc-id parameter. + */ + +#include <stdio.h> +#include <string.h> +#include <stdint.h> +#include <stdlib.h> +#include <stdarg.h> +#include <errno.h> +#include <sys/queue.h> +#include <getopt.h> +#include <signal.h> +#include <inttypes.h> + +#include <rte_common.h> +#include <rte_log.h> +#include <rte_memory.h> +#include <rte_launch.h> +#include <rte_eal.h> +#include <rte_per_lcore.h> +#include <rte_lcore.h> +#include <rte_atomic.h> +#include <rte_branch_prediction.h> +#include <rte_debug.h> +#include <rte_interrupts.h> +#include <rte_ether.h> +#include <rte_ethdev.h> +#include <rte_mempool.h> +#include <rte_memcpy.h> +#include <rte_mbuf.h> +#include <rte_string_fns.h> +#include <rte_cycles.h> + +#define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1 + +#define NB_MBUFS 64*1024 /* use 64k mbufs */ +#define MBUF_CACHE_SIZE 256 +#define PKT_BURST 32 +#define RX_RING_SIZE 1024 +#define TX_RING_SIZE 1024 + +#define PARAM_PROC_ID "proc-id" +#define PARAM_NUM_PROCS "num-procs" + +/* for each lcore, record the elements of the ports array to use */ +struct lcore_ports{ + unsigned start_port; + unsigned num_ports; +}; + +/* structure to record the rx and tx packets. Put two per cache line as ports + * used in pairs */ +struct port_stats{ + unsigned rx; + unsigned tx; + unsigned drop; +} __rte_aligned(RTE_CACHE_LINE_SIZE / 2); + +static int proc_id = -1; +static unsigned num_procs = 0; + +static uint16_t ports[RTE_MAX_ETHPORTS]; +static unsigned num_ports = 0; + +static struct lcore_ports lcore_ports[RTE_MAX_LCORE]; +static struct port_stats pstats[RTE_MAX_ETHPORTS]; + +/* prints the usage statement and quits with an error message */ +static void +smp_usage(const char *prgname, const char *errmsg) +{ + printf("\nError: %s\n",errmsg); + printf("\n%s [EAL options] -- -p <port mask> " + "--"PARAM_NUM_PROCS" <n>" + " --"PARAM_PROC_ID" <id>\n" + "-p : a hex bitmask indicating what ports are to be used\n" + "--num-procs: the number of processes which will be used\n" + "--proc-id : the id of the current process (id < num-procs)\n" + "\n", + prgname); + exit(1); +} + + +/* signal handler configured for SIGTERM and SIGINT to print stats on exit */ +static void +print_stats(int signum) +{ + unsigned i; + printf("\nExiting on signal %d\n\n", signum); + for (i = 0; i < num_ports; i++){ + const uint8_t p_num = ports[i]; + printf("Port %u: RX - %u, TX - %u, Drop - %u\n", (unsigned)p_num, + pstats[p_num].rx, pstats[p_num].tx, pstats[p_num].drop); + } + exit(0); +} + +/* Parse the argument given in the command line of the application */ +static int +smp_parse_args(int argc, char **argv) +{ + int opt, ret; + char **argvopt; + int option_index; + uint16_t i, port_mask = 0; + char *prgname = argv[0]; + static struct option lgopts[] = { + {PARAM_NUM_PROCS, 1, 0, 0}, + {PARAM_PROC_ID, 1, 0, 0}, + {NULL, 0, 0, 0} + }; + + argvopt = argv; + + while ((opt = getopt_long(argc, argvopt, "p:", \ + lgopts, &option_index)) != EOF) { + + switch (opt) { + case 'p': + port_mask = strtoull(optarg, NULL, 16); + break; + /* long options */ + case 0: + if (strncmp(lgopts[option_index].name, PARAM_NUM_PROCS, 8) == 0) + num_procs = atoi(optarg); + else if (strncmp(lgopts[option_index].name, PARAM_PROC_ID, 7) == 0) + proc_id = atoi(optarg); + break; + + default: + smp_usage(prgname, "Cannot parse all command-line arguments\n"); + } + } + + if (optind >= 0) + argv[optind-1] = prgname; + + if (proc_id < 0) + smp_usage(prgname, "Invalid or missing proc-id parameter\n"); + if (rte_eal_process_type() == RTE_PROC_PRIMARY && num_procs == 0) + smp_usage(prgname, "Invalid or missing num-procs parameter\n"); + if (port_mask == 0) + smp_usage(prgname, "Invalid or missing port mask\n"); + + /* get the port numbers from the port mask */ + RTE_ETH_FOREACH_DEV(i) + if(port_mask & (1 << i)) + ports[num_ports++] = (uint8_t)i; + + ret = optind-1; + optind = 1; /* reset getopt lib */ + + return ret; +} + +/* + * Initialises a given port using global settings and with the rx buffers + * coming from the mbuf_pool passed as parameter + */ +static inline int +smp_port_init(uint16_t port, struct rte_mempool *mbuf_pool, + uint16_t num_queues) +{ + struct rte_eth_conf port_conf = { + .rxmode = { + .mq_mode = ETH_MQ_RX_RSS, + .split_hdr_size = 0, + .offloads = DEV_RX_OFFLOAD_CHECKSUM, + }, + .rx_adv_conf = { + .rss_conf = { + .rss_key = NULL, + .rss_hf = ETH_RSS_IP, + }, + }, + .txmode = { + .mq_mode = ETH_MQ_TX_NONE, + } + }; + const uint16_t rx_rings = num_queues, tx_rings = num_queues; + struct rte_eth_dev_info info; + struct rte_eth_rxconf rxq_conf; + struct rte_eth_txconf txq_conf; + int retval; + uint16_t q; + uint16_t nb_rxd = RX_RING_SIZE; + uint16_t nb_txd = TX_RING_SIZE; + uint64_t rss_hf_tmp; + + if (rte_eal_process_type() == RTE_PROC_SECONDARY) + return 0; + + if (!rte_eth_dev_is_valid_port(port)) + return -1; + + printf("# Initialising port %u... ", port); + fflush(stdout); + + retval = rte_eth_dev_info_get(port, &info); + if (retval != 0) { + printf("Error during getting device (port %u) info: %s\n", + port, strerror(-retval)); + return retval; + } + + info.default_rxconf.rx_drop_en = 1; + + if (info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) + port_conf.txmode.offloads |= + DEV_TX_OFFLOAD_MBUF_FAST_FREE; + + rss_hf_tmp = port_conf.rx_adv_conf.rss_conf.rss_hf; + port_conf.rx_adv_conf.rss_conf.rss_hf &= info.flow_type_rss_offloads; + if (port_conf.rx_adv_conf.rss_conf.rss_hf != rss_hf_tmp) { + printf("Port %u modified RSS hash function based on hardware support," + "requested:%#"PRIx64" configured:%#"PRIx64"\n", + port, + rss_hf_tmp, + port_conf.rx_adv_conf.rss_conf.rss_hf); + } + + retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf); + if (retval < 0) + return retval; + + retval = rte_eth_dev_adjust_nb_rx_tx_desc(port, &nb_rxd, &nb_txd); + if (retval < 0) + return retval; + + rxq_conf = info.default_rxconf; + rxq_conf.offloads = port_conf.rxmode.offloads; + for (q = 0; q < rx_rings; q ++) { + retval = rte_eth_rx_queue_setup(port, q, nb_rxd, + rte_eth_dev_socket_id(port), + &rxq_conf, + mbuf_pool); + if (retval < 0) + return retval; + } + + txq_conf = info.default_txconf; + txq_conf.offloads = port_conf.txmode.offloads; + for (q = 0; q < tx_rings; q ++) { + retval = rte_eth_tx_queue_setup(port, q, nb_txd, + rte_eth_dev_socket_id(port), + &txq_conf); + if (retval < 0) + return retval; + } + + retval = rte_eth_promiscuous_enable(port); + if (retval != 0) + return retval; + + retval = rte_eth_dev_start(port); + if (retval < 0) + return retval; + + return 0; +} + +/* Goes through each of the lcores and calculates what ports should + * be used by that core. Fills in the global lcore_ports[] array. + */ +static void +assign_ports_to_cores(void) +{ + + const unsigned int lcores = rte_lcore_count(); + const unsigned port_pairs = num_ports / 2; + const unsigned pairs_per_lcore = port_pairs / lcores; + unsigned extra_pairs = port_pairs % lcores; + unsigned ports_assigned = 0; + unsigned i; + + RTE_LCORE_FOREACH(i) { + lcore_ports[i].start_port = ports_assigned; + lcore_ports[i].num_ports = pairs_per_lcore * 2; + if (extra_pairs > 0) { + lcore_ports[i].num_ports += 2; + extra_pairs--; + } + ports_assigned += lcore_ports[i].num_ports; + } +} + +/* Main function used by the processing threads. + * Prints out some configuration details for the thread and then begins + * performing packet RX and TX. + */ +static int +lcore_main(void *arg __rte_unused) +{ + const unsigned id = rte_lcore_id(); + const unsigned start_port = lcore_ports[id].start_port; + const unsigned end_port = start_port + lcore_ports[id].num_ports; + const uint16_t q_id = (uint16_t)proc_id; + unsigned p, i; + char msgbuf[256]; + int msgbufpos = 0; + + if (start_port == end_port){ + printf("Lcore %u has nothing to do\n", id); + return 0; + } + + /* build up message in msgbuf before printing to decrease likelihood + * of multi-core message interleaving. + */ + msgbufpos += snprintf(msgbuf, sizeof(msgbuf) - msgbufpos, + "Lcore %u using ports ", id); + for (p = start_port; p < end_port; p++){ + msgbufpos += snprintf(msgbuf + msgbufpos, sizeof(msgbuf) - msgbufpos, + "%u ", (unsigned)ports[p]); + } + printf("%s\n", msgbuf); + printf("lcore %u using queue %u of each port\n", id, (unsigned)q_id); + + /* handle packet I/O from the ports, reading and writing to the + * queue number corresponding to our process number (not lcore id) + */ + + for (;;) { + struct rte_mbuf *buf[PKT_BURST]; + + for (p = start_port; p < end_port; p++) { + const uint8_t src = ports[p]; + const uint8_t dst = ports[p ^ 1]; /* 0 <-> 1, 2 <-> 3 etc */ + const uint16_t rx_c = rte_eth_rx_burst(src, q_id, buf, PKT_BURST); + if (rx_c == 0) + continue; + pstats[src].rx += rx_c; + + const uint16_t tx_c = rte_eth_tx_burst(dst, q_id, buf, rx_c); + pstats[dst].tx += tx_c; + if (tx_c != rx_c) { + pstats[dst].drop += (rx_c - tx_c); + for (i = tx_c; i < rx_c; i++) + rte_pktmbuf_free(buf[i]); + } + } + } +} + +/* Check the link status of all ports in up to 9s, and print them finally */ +static void +check_all_ports_link_status(uint16_t port_num, uint32_t port_mask) +{ +#define CHECK_INTERVAL 100 /* 100ms */ +#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ + uint16_t portid; + uint8_t count, all_ports_up, print_flag = 0; + struct rte_eth_link link; + int ret; + + printf("\nChecking link status"); + fflush(stdout); + for (count = 0; count <= MAX_CHECK_TIME; count++) { + all_ports_up = 1; + for (portid = 0; portid < port_num; portid++) { + if ((port_mask & (1 << portid)) == 0) + continue; + memset(&link, 0, sizeof(link)); + ret = rte_eth_link_get_nowait(portid, &link); + if (ret < 0) { + all_ports_up = 0; + if (print_flag == 1) + printf("Port %u link get failed: %s\n", + portid, rte_strerror(-ret)); + continue; + } + /* print link status if flag set */ + if (print_flag == 1) { + 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")); + else + printf("Port %d Link Down\n", portid); + continue; + } + /* clear all_ports_up flag if any link down */ + if (link.link_status == ETH_LINK_DOWN) { + all_ports_up = 0; + break; + } + } + /* after finally printing all link status, get out */ + if (print_flag == 1) + break; + + if (all_ports_up == 0) { + printf("."); + fflush(stdout); + rte_delay_ms(CHECK_INTERVAL); + } + + /* set the print_flag if all ports up or timeout */ + if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { + print_flag = 1; + printf("done\n"); + } + } +} + +/* Main function. + * Performs initialisation and then calls the lcore_main on each core + * to do the packet-processing work. + */ +int +main(int argc, char **argv) +{ + static const char *_SMP_MBUF_POOL = "SMP_MBUF_POOL"; + int ret; + unsigned i; + enum rte_proc_type_t proc_type; + struct rte_mempool *mp; + + /* set up signal handlers to print stats on exit */ + signal(SIGINT, print_stats); + signal(SIGTERM, print_stats); + + /* initialise the EAL for all */ + ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot init EAL\n"); + argc -= ret; + argv += ret; + + /* determine the NIC devices available */ + if (rte_eth_dev_count_avail() == 0) + rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); + + /* parse application arguments (those after the EAL ones) */ + smp_parse_args(argc, argv); + + proc_type = rte_eal_process_type(); + mp = (proc_type == RTE_PROC_SECONDARY) ? + rte_mempool_lookup(_SMP_MBUF_POOL) : + rte_pktmbuf_pool_create(_SMP_MBUF_POOL, NB_MBUFS, + MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, + rte_socket_id()); + if (mp == NULL) + rte_exit(EXIT_FAILURE, "Cannot get memory pool for buffers\n"); + + if (num_ports & 1) + rte_exit(EXIT_FAILURE, "Application must use an even number of ports\n"); + for(i = 0; i < num_ports; i++){ + if(proc_type == RTE_PROC_PRIMARY) + if (smp_port_init(ports[i], mp, (uint16_t)num_procs) < 0) + rte_exit(EXIT_FAILURE, "Error initialising ports\n"); + } + + if (proc_type == RTE_PROC_PRIMARY) + check_all_ports_link_status((uint8_t)num_ports, (~0x0)); + + assign_ports_to_cores(); + + RTE_LOG(INFO, APP, "Finished Process Init.\n"); + + rte_eal_mp_remote_launch(lcore_main, NULL, CALL_MASTER); + + return 0; +} diff --git a/src/spdk/dpdk/examples/multi_process/symmetric_mp/meson.build b/src/spdk/dpdk/examples/multi_process/symmetric_mp/meson.build new file mode 100644 index 000000000..14167825b --- /dev/null +++ b/src/spdk/dpdk/examples/multi_process/symmetric_mp/meson.build @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright 2019 Mellanox Technologies, Ltd + +# 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 +sources = files( + 'main.c' +) |