>
> Add eventmode support to ipsec-secgw. This uses event helper to setup
> and use the eventmode capabilities. Add driver inbound worker.
>
> Example command:
> ./ipsec-secgw -c 0x1 -w 0002:02:00.0,ipsec_in_max_spi=100 -w 0002:07:00.0
> -w 0002:0e:00.0 -w 0002:10:00.1 -- -P -p 0x3 -u 0x1
> --config "(0,0,0),(1,0,0)" -f a-aes-gcm-msa.cfg --transfer-mode 1
> --schedule-type 2 --process-mode drv --process-dir in
>
> Signed-off-by: Anoob Joseph <ano...@marvell.com>
> Signed-off-by: Lukasz Bartosik <lbarto...@marvell.com>
> ---
> examples/ipsec-secgw/Makefile | 1 +
> examples/ipsec-secgw/event_helper.c | 3 +
> examples/ipsec-secgw/event_helper.h | 26 +++
> examples/ipsec-secgw/ipsec-secgw.c | 344
> +++++++++++++++++++++++++++++++++++-
> examples/ipsec-secgw/ipsec.h | 7 +
> examples/ipsec-secgw/ipsec_worker.c | 180 +++++++++++++++++++
> examples/ipsec-secgw/meson.build | 2 +-
> 7 files changed, 555 insertions(+), 8 deletions(-)
> create mode 100644 examples/ipsec-secgw/ipsec_worker.c
>
> diff --git a/examples/ipsec-secgw/Makefile b/examples/ipsec-secgw/Makefile
> index 09e3c5a..f6fd94c 100644
> --- a/examples/ipsec-secgw/Makefile
> +++ b/examples/ipsec-secgw/Makefile
> @@ -15,6 +15,7 @@ SRCS-y += sa.c
> SRCS-y += rt.c
> SRCS-y += ipsec_process.c
> SRCS-y += ipsec-secgw.c
> +SRCS-y += ipsec_worker.c
> SRCS-y += event_helper.c
>
> CFLAGS += -gdwarf-2
> diff --git a/examples/ipsec-secgw/event_helper.c
> b/examples/ipsec-secgw/event_helper.c
> index 6549875..44f997d 100644
> --- a/examples/ipsec-secgw/event_helper.c
> +++ b/examples/ipsec-secgw/event_helper.c
> @@ -984,6 +984,9 @@ eh_find_worker(uint32_t lcore_id, struct eh_conf *conf,
> else
> curr_conf.cap.burst = EH_RX_TYPE_NON_BURST;
>
> + curr_conf.cap.ipsec_mode = conf->ipsec_mode;
> + curr_conf.cap.ipsec_dir = conf->ipsec_dir;
> +
> /* Parse the passed list and see if we have matching capabilities */
>
> /* Initialize the pointer used to traverse the list */
> diff --git a/examples/ipsec-secgw/event_helper.h
> b/examples/ipsec-secgw/event_helper.h
> index 2895dfa..07849b0 100644
> --- a/examples/ipsec-secgw/event_helper.h
> +++ b/examples/ipsec-secgw/event_helper.h
> @@ -74,6 +74,22 @@ enum eh_tx_types {
> EH_TX_TYPE_NO_INTERNAL_PORT
> };
>
> +/**
> + * Event mode ipsec mode types
> + */
> +enum eh_ipsec_mode_types {
> + EH_IPSEC_MODE_TYPE_APP = 0,
> + EH_IPSEC_MODE_TYPE_DRIVER
> +};
> +
> +/**
> + * Event mode ipsec direction types
> + */
> +enum eh_ipsec_dir_types {
> + EH_IPSEC_DIR_TYPE_OUTBOUND = 0,
> + EH_IPSEC_DIR_TYPE_INBOUND,
> +};
> +
> /* Event dev params */
> struct eventdev_params {
> uint8_t eventdev_id;
> @@ -183,6 +199,12 @@ struct eh_conf {
> */
> void *mode_params;
> /**< Mode specific parameters */
> +
> + /** Application specific params */
> + enum eh_ipsec_mode_types ipsec_mode;
> + /**< Mode of ipsec run */
> + enum eh_ipsec_dir_types ipsec_dir;
> + /**< Direction of ipsec processing */
> };
>
> /* Workers registered by the application */
> @@ -194,6 +216,10 @@ struct eh_app_worker_params {
> /**< Specify status of rx type burst */
> uint64_t tx_internal_port : 1;
> /**< Specify whether tx internal port is available */
> + uint64_t ipsec_mode : 1;
> + /**< Specify ipsec processing level */
> + uint64_t ipsec_dir : 1;
> + /**< Specify direction of ipsec */
> };
> uint64_t u64;
> } cap;
> diff --git a/examples/ipsec-secgw/ipsec-secgw.c
> b/examples/ipsec-secgw/ipsec-secgw.c
> index 7506922..c5d95b9 100644
> --- a/examples/ipsec-secgw/ipsec-secgw.c
> +++ b/examples/ipsec-secgw/ipsec-secgw.c
> @@ -2,6 +2,7 @@
> * Copyright(c) 2016 Intel Corporation
> */
>
> +#include <stdbool.h>
> #include <stdio.h>
> #include <stdlib.h>
> #include <stdint.h>
> @@ -14,6 +15,7 @@
> #include <sys/queue.h>
> #include <stdarg.h>
> #include <errno.h>
> +#include <signal.h>
> #include <getopt.h>
>
> #include <rte_common.h>
> @@ -41,12 +43,17 @@
> #include <rte_jhash.h>
> #include <rte_cryptodev.h>
> #include <rte_security.h>
> +#include <rte_bitmap.h>
> +#include <rte_eventdev.h>
> #include <rte_ip.h>
> #include <rte_ip_frag.h>
>
> +#include "event_helper.h"
> #include "ipsec.h"
> #include "parser.h"
>
> +volatile bool force_quit;
> +
> #define RTE_LOGTYPE_IPSEC RTE_LOGTYPE_USER1
>
> #define MAX_JUMBO_PKT_LEN 9600
> @@ -133,12 +140,21 @@ struct flow_info flow_info_tbl[RTE_MAX_ETHPORTS];
> #define CMD_LINE_OPT_CONFIG "config"
> #define CMD_LINE_OPT_SINGLE_SA "single-sa"
> #define CMD_LINE_OPT_CRYPTODEV_MASK "cryptodev_mask"
> +#define CMD_LINE_OPT_TRANSFER_MODE "transfer-mode"
> +#define CMD_LINE_OPT_SCHEDULE_TYPE "schedule-type"
> +#define CMD_LINE_OPT_IPSEC_MODE "process-mode"
> +#define CMD_LINE_OPT_IPSEC_DIR "process-dir"
> #define CMD_LINE_OPT_RX_OFFLOAD "rxoffload"
> #define CMD_LINE_OPT_TX_OFFLOAD "txoffload"
> #define CMD_LINE_OPT_REASSEMBLE "reassemble"
> #define CMD_LINE_OPT_MTU "mtu"
> #define CMD_LINE_OPT_FRAG_TTL "frag-ttl"
>
> +#define CMD_LINE_ARG_APP "app"
> +#define CMD_LINE_ARG_DRV "drv"
> +#define CMD_LINE_ARG_INB "in"
> +#define CMD_LINE_ARG_OUT "out"
> +
> enum {
> /* long options mapped to a short option */
>
> @@ -149,7 +165,11 @@ enum {
> CMD_LINE_OPT_CONFIG_NUM,
> CMD_LINE_OPT_SINGLE_SA_NUM,
> CMD_LINE_OPT_CRYPTODEV_MASK_NUM,
> + CMD_LINE_OPT_TRANSFER_MODE_NUM,
> + CMD_LINE_OPT_SCHEDULE_TYPE_NUM,
> CMD_LINE_OPT_RX_OFFLOAD_NUM,
> + CMD_LINE_OPT_IPSEC_MODE_NUM,
> + CMD_LINE_OPT_IPSEC_DIR_NUM,
> CMD_LINE_OPT_TX_OFFLOAD_NUM,
> CMD_LINE_OPT_REASSEMBLE_NUM,
> CMD_LINE_OPT_MTU_NUM,
> @@ -160,6 +180,10 @@ static const struct option lgopts[] = {
> {CMD_LINE_OPT_CONFIG, 1, 0, CMD_LINE_OPT_CONFIG_NUM},
> {CMD_LINE_OPT_SINGLE_SA, 1, 0, CMD_LINE_OPT_SINGLE_SA_NUM},
> {CMD_LINE_OPT_CRYPTODEV_MASK, 1, 0, CMD_LINE_OPT_CRYPTODEV_MASK_NUM},
> + {CMD_LINE_OPT_TRANSFER_MODE, 1, 0, CMD_LINE_OPT_TRANSFER_MODE_NUM},
> + {CMD_LINE_OPT_SCHEDULE_TYPE, 1, 0, CMD_LINE_OPT_SCHEDULE_TYPE_NUM},
> + {CMD_LINE_OPT_IPSEC_MODE, 1, 0, CMD_LINE_OPT_IPSEC_MODE_NUM},
> + {CMD_LINE_OPT_IPSEC_DIR, 1, 0, CMD_LINE_OPT_IPSEC_DIR_NUM},
> {CMD_LINE_OPT_RX_OFFLOAD, 1, 0, CMD_LINE_OPT_RX_OFFLOAD_NUM},
> {CMD_LINE_OPT_TX_OFFLOAD, 1, 0, CMD_LINE_OPT_TX_OFFLOAD_NUM},
> {CMD_LINE_OPT_REASSEMBLE, 1, 0, CMD_LINE_OPT_REASSEMBLE_NUM},
> @@ -1094,8 +1118,8 @@ drain_outbound_crypto_queues(const struct lcore_conf
> *qconf,
> }
>
> /* main processing loop */
> -static int32_t
> -main_loop(__attribute__((unused)) void *dummy)
> +void
> +ipsec_poll_mode_worker(void)
> {
> struct rte_mbuf *pkts[MAX_PKT_BURST];
> uint32_t lcore_id;
> @@ -1137,7 +1161,7 @@ main_loop(__attribute__((unused)) void *dummy)
> if (qconf->nb_rx_queue == 0) {
> RTE_LOG(DEBUG, IPSEC, "lcore %u has nothing to do\n",
> lcore_id);
> - return 0;
> + return;
> }
>
> RTE_LOG(INFO, IPSEC, "entering main loop on lcore %u\n", lcore_id);
> @@ -1150,7 +1174,7 @@ main_loop(__attribute__((unused)) void *dummy)
> lcore_id, portid, queueid);
> }
>
> - while (1) {
> + while (!force_quit) {
> cur_tsc = rte_rdtsc();
>
> /* TX queue buffer drain */
> @@ -1277,6 +1301,10 @@ print_usage(const char *prgname)
> " --config (port,queue,lcore)[,(port,queue,lcore)]"
> " [--single-sa SAIDX]"
> " [--cryptodev_mask MASK]"
> + " [--transfer-mode MODE]"
> + " [--schedule-type TYPE]"
> + " [--process-mode MODE]"
> + " [--process-dir DIR]"
> " [--" CMD_LINE_OPT_RX_OFFLOAD " RX_OFFLOAD_MASK]"
> " [--" CMD_LINE_OPT_TX_OFFLOAD " TX_OFFLOAD_MASK]"
> " [--" CMD_LINE_OPT_REASSEMBLE " REASSEMBLE_TABLE_SIZE]"
> @@ -1298,6 +1326,22 @@ print_usage(const char *prgname)
> " bypassing the SP\n"
> " --cryptodev_mask MASK: Hexadecimal bitmask of the crypto\n"
> " devices to configure\n"
> + " --transfer-mode MODE\n"
> + " 0: Packet transfer via polling (default)\n"
> + " 1: Packet transfer via eventdev\n"
> + " --schedule-type TYPE queue schedule type, used only when\n"
> + " transfer mode is set to eventdev\n"
> + " 0: Ordered (default)\n"
> + " 1: Atomic\n"
> + " 2: Parallel\n"
For last two, why not something huma-readable?
I.E. == --tranfer-mode=(poll|event) or so.
Same for schedule-type.
> + " --process-mode MODE processing mode, used only when\n"
> + " transfer mode is set to eventdev\n"
> + " \"app\" : application mode (default)\n"
> + " \"drv\" : driver mode\n"
> + " --process-dir DIR processing direction, used only when\n"
> + " transfer mode is set to eventdev\n"
> + " \"out\" : outbound (default)\n"
> + " \"in\" : inbound\n"
Hmm and why in eventdev mode it is not possible to handle both inbound and
outbound traffic?
Where is the limitation: eventdev framework/PMD/ipsec-secgw?
> " --" CMD_LINE_OPT_RX_OFFLOAD
> ": bitmask of the RX HW offload capabilities to enable/use\n"
> " (DEV_RX_OFFLOAD_*)\n"
> @@ -1433,7 +1477,89 @@ print_app_sa_prm(const struct app_sa_prm *prm)
> }
>
> static int32_t
> -parse_args(int32_t argc, char **argv)
> +eh_parse_decimal(const char *str)
> +{
> + unsigned long num;
> + char *end = NULL;
> +
> + num = strtoul(str, &end, 10);
> + if ((str[0] == '\0') || (end == NULL) || (*end != '\0'))
> + return -EINVAL;
> +
> + return num;
> +}
There already exists parse_decimal(), why to create a dup?
> +
> +static int
> +parse_transfer_mode(struct eh_conf *conf, const char *optarg)
> +{
> + int32_t parsed_dec;
> +
> + parsed_dec = eh_parse_decimal(optarg);
> + if (parsed_dec != EH_PKT_TRANSFER_MODE_POLL &&
> + parsed_dec != EH_PKT_TRANSFER_MODE_EVENT) {
> + printf("Unsupported packet transfer mode");
> + return -EINVAL;
> + }
> + conf->mode = parsed_dec;
> + return 0;
> +}
> +
> +static int
> +parse_schedule_type(struct eh_conf *conf, const char *optarg)
> +{
> + struct eventmode_conf *em_conf = NULL;
> + int32_t parsed_dec;
> +
> + parsed_dec = eh_parse_decimal(optarg);
> + if (parsed_dec != RTE_SCHED_TYPE_ORDERED &&
> + parsed_dec != RTE_SCHED_TYPE_ATOMIC &&
> + parsed_dec != RTE_SCHED_TYPE_PARALLEL)
> + return -EINVAL;
> +
> + /* Get eventmode conf */
> + em_conf = (struct eventmode_conf *)(conf->mode_params);
> +
> + em_conf->ext_params.sched_type = parsed_dec;
> +
> + return 0;
> +}
> +
> +static int
> +parse_ipsec_mode(struct eh_conf *conf, const char *optarg)
> +{
> + if (!strncmp(CMD_LINE_ARG_APP, optarg, strlen(CMD_LINE_ARG_APP)) &&
> + strlen(optarg) == strlen(CMD_LINE_ARG_APP))
Ugh, that's an ugly construction, why not just:
if (strcmp(CMD_LINE_ARG_APP, optarg) == 0)
?
> + conf->ipsec_mode = EH_IPSEC_MODE_TYPE_APP;
> + else if (!strncmp(CMD_LINE_ARG_DRV, optarg, strlen(CMD_LINE_ARG_DRV)) &&
> + strlen(optarg) == strlen(CMD_LINE_ARG_DRV))
> + conf->ipsec_mode = EH_IPSEC_MODE_TYPE_DRIVER;
> + else {
> + printf("Unsupported ipsec mode\n");
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int
> +parse_ipsec_dir(struct eh_conf *conf, const char *optarg)
> +{
> + if (!strncmp(CMD_LINE_ARG_INB, optarg, strlen(CMD_LINE_ARG_INB)) &&
> + strlen(optarg) == strlen(CMD_LINE_ARG_INB))
> + conf->ipsec_dir = EH_IPSEC_DIR_TYPE_INBOUND;
> + else if (!strncmp(CMD_LINE_ARG_OUT, optarg, strlen(CMD_LINE_ARG_OUT)) &&
> + strlen(optarg) == strlen(CMD_LINE_ARG_OUT))
> + conf->ipsec_dir = EH_IPSEC_DIR_TYPE_OUTBOUND;
> + else {
> + printf("Unsupported ipsec direction\n");
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int32_t
> +parse_args(int32_t argc, char **argv, struct eh_conf *eh_conf)
> {
> int opt;
> int64_t ret;
> @@ -1536,6 +1662,43 @@ parse_args(int32_t argc, char **argv)
> /* else */
> enabled_cryptodev_mask = ret;
> break;
> +
> + case CMD_LINE_OPT_TRANSFER_MODE_NUM:
> + ret = parse_transfer_mode(eh_conf, optarg);
> + if (ret < 0) {
> + printf("Invalid packet transfer mode\n");
> + print_usage(prgname);
> + return -1;
> + }
> + break;
> +
> + case CMD_LINE_OPT_SCHEDULE_TYPE_NUM:
> + ret = parse_schedule_type(eh_conf, optarg);
> + if (ret < 0) {
> + printf("Invalid queue schedule type\n");
> + print_usage(prgname);
> + return -1;
> + }
> + break;
> +
> + case CMD_LINE_OPT_IPSEC_MODE_NUM:
> + ret = parse_ipsec_mode(eh_conf, optarg);
> + if (ret < 0) {
> + printf("Invalid ipsec mode\n");
> + print_usage(prgname);
> + return -1;
> + }
> + break;
> +
> + case CMD_LINE_OPT_IPSEC_DIR_NUM:
> + ret = parse_ipsec_dir(eh_conf, optarg);
> + if (ret < 0) {
> + printf("Invalid ipsec direction\n");
> + print_usage(prgname);
> + return -1;
> + }
> + break;
> +
> case CMD_LINE_OPT_RX_OFFLOAD_NUM:
> ret = parse_mask(optarg, &dev_rx_offload);
> if (ret != 0) {
> @@ -2457,6 +2620,132 @@ create_default_ipsec_flow(uint16_t port_id, uint64_t
> rx_offloads)
> return ret;
> }
>
> +static struct eh_conf *
> +eh_conf_init(void)
> +{
> + struct eventmode_conf *em_conf = NULL;
> + struct eh_conf *conf = NULL;
> + unsigned int eth_core_id;
> + uint32_t nb_bytes;
> + void *mem = NULL;
> +
> + /* Allocate memory for config */
> + conf = calloc(1, sizeof(struct eh_conf));
> + if (conf == NULL) {
> + printf("Failed to allocate memory for eventmode helper conf");
> + goto err;
> + }
> +
> + /* Set default conf */
> +
> + /* Packet transfer mode: poll */
> + conf->mode = EH_PKT_TRANSFER_MODE_POLL;
> + conf->ipsec_mode = EH_IPSEC_MODE_TYPE_APP;
> + conf->ipsec_dir = EH_IPSEC_DIR_TYPE_OUTBOUND;
> +
> + /* Keep all ethernet ports enabled by default */
> + conf->eth_portmask = -1;
> +
> + /* Allocate memory for event mode params */
> + conf->mode_params =
> + calloc(1, sizeof(struct eventmode_conf));
> + if (conf->mode_params == NULL) {
> + printf("Failed to allocate memory for event mode params");
> + goto err;
> + }
> +
> + /* Get eventmode conf */
> + em_conf = (struct eventmode_conf *)(conf->mode_params);
> +
> + /* Allocate and initialize bitmap for eth cores */
> + nb_bytes = rte_bitmap_get_memory_footprint(RTE_MAX_LCORE);
> + if (!nb_bytes) {
> + printf("Failed to get bitmap footprint");
> + goto err;
> + }
> +
> + mem = rte_zmalloc("event-helper-ethcore-bitmap", nb_bytes,
> + RTE_CACHE_LINE_SIZE);
> + if (!mem) {
> + printf("Failed to allocate memory for eth cores bitmap\n");
> + goto err;
> + }
> +
> + em_conf->eth_core_mask = rte_bitmap_init(RTE_MAX_LCORE, mem, nb_bytes);
> + if (!em_conf->eth_core_mask) {
> + printf("Failed to initialize bitmap");
> + goto err;
> + }
> +
> + /* Schedule type: ordered */
> + em_conf->ext_params.sched_type = RTE_SCHED_TYPE_ORDERED;
> +
> + /* Set two cores as eth cores for Rx & Tx */
> +
> + /* Use first core other than master core as Rx core */
> + eth_core_id = rte_get_next_lcore(0, /* curr core */
> + 1, /* skip master core */
> + 0 /* wrap */);
> +
> + rte_bitmap_set(em_conf->eth_core_mask, eth_core_id);
> +
> + /* Use next core as Tx core */
> + eth_core_id = rte_get_next_lcore(eth_core_id, /* curr core */
> + 1, /* skip master core */
> + 0 /* wrap */);
> +
> + rte_bitmap_set(em_conf->eth_core_mask, eth_core_id);
> +
> + return conf;
> +err:
> + rte_free(mem);
> + free(em_conf);
> + free(conf);
> + return NULL;
> +}
> +
> +static void
> +eh_conf_uninit(struct eh_conf *conf)
> +{
> + struct eventmode_conf *em_conf = NULL;
> +
> + /* Get eventmode conf */
> + em_conf = (struct eventmode_conf *)(conf->mode_params);
> +
> + /* Free evenmode configuration memory */
> + rte_free(em_conf->eth_core_mask);
> + free(em_conf);
> + free(conf);
> +}
> +
> +static void
> +signal_handler(int signum)
> +{
> + if (signum == SIGINT || signum == SIGTERM) {
> + uint16_t port_id;
> + printf("\n\nSignal %d received, preparing to exit...\n",
> + signum);
> + force_quit = true;
> +
> + /* Destroy the default ipsec flow */
> + RTE_ETH_FOREACH_DEV(port_id) {
> + if ((enabled_port_mask & (1 << port_id)) == 0)
> + continue;
> + if (flow_info_tbl[port_id].rx_def_flow) {
> + struct rte_flow_error err;
> + int ret;
As we are going to call dev_stop(), etc. at force_quit below,
is there any reason to call rte_flow_destroy() here?
Just curious.
> + ret = rte_flow_destroy(port_id,
> + flow_info_tbl[port_id].rx_def_flow,
> + &err);
> + if (ret)
> + RTE_LOG(ERR, IPSEC,
> + "Failed to destroy flow for port %u, "
> + "err msg: %s\n", port_id, err.message);
> + }
> + }
> + }
> +}
> +
> int32_t
> main(int32_t argc, char **argv)
> {
> @@ -2466,6 +2755,7 @@ main(int32_t argc, char **argv)
> uint8_t socket_id;
> uint16_t portid;
> uint64_t req_rx_offloads, req_tx_offloads;
> + struct eh_conf *eh_conf = NULL;
> size_t sess_sz;
>
> /* init EAL */
> @@ -2475,8 +2765,17 @@ main(int32_t argc, char **argv)
> argc -= ret;
> argv += ret;
>
> + force_quit = false;
> + signal(SIGINT, signal_handler);
> + signal(SIGTERM, signal_handler);
> +
> + /* initialize event helper configuration */
> + eh_conf = eh_conf_init();
> + if (eh_conf == NULL)
> + rte_exit(EXIT_FAILURE, "Failed to init event helper config");
> +
> /* parse application arguments (after the EAL ones) */
> - ret = parse_args(argc, argv);
> + ret = parse_args(argc, argv, eh_conf);
> if (ret < 0)
> rte_exit(EXIT_FAILURE, "Invalid parameters\n");
>
> @@ -2592,12 +2891,43 @@ main(int32_t argc, char **argv)
>
> check_all_ports_link_status(enabled_port_mask);
>
> + /*
> + * Set the enabled port mask in helper config for use by helper
> + * sub-system. This will be used while intializing devices using
> + * helper sub-system.
> + */
> + eh_conf->eth_portmask = enabled_port_mask;
> +
> + /* Initialize eventmode components */
> + ret = eh_devs_init(eh_conf);
> + if (ret < 0)
> + rte_exit(EXIT_FAILURE, "eh_devs_init failed, err=%d\n", ret);
> +
> /* launch per-lcore init on every lcore */
> - rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
> + rte_eal_mp_remote_launch(ipsec_launch_one_lcore, eh_conf, CALL_MASTER);
> +
> RTE_LCORE_FOREACH_SLAVE(lcore_id) {
> if (rte_eal_wait_lcore(lcore_id) < 0)
> return -1;
> }
>
> + /* Uninitialize eventmode components */
> + ret = eh_devs_uninit(eh_conf);
> + if (ret < 0)
> + rte_exit(EXIT_FAILURE, "eh_devs_uninit failed, err=%d\n", ret);
> +
> + /* Free eventmode configuration memory */
> + eh_conf_uninit(eh_conf);
> +
> + RTE_ETH_FOREACH_DEV(portid) {
> + if ((enabled_port_mask & (1 << portid)) == 0)
> + continue;
> + printf("Closing port %d...", portid);
> + rte_eth_dev_stop(portid);
> + rte_eth_dev_close(portid);
> + printf(" Done\n");
> + }
> + printf("Bye...\n");
> +
> return 0;
> }
