[dpdk-dev] [PATCH v2 09/12] examples/ipsec-secgw: add eventmode to ipsec-secgw

[Anoob Joseph <anoobj@marvell.com>]

From: Lukasz Bartosik <lbartosik@marvell.com>

Add eventmode support to ipsec-secgw. With the aid of event helper
configure and use the eventmode capabilities.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Lukasz Bartosik <lbartosik@marvell.com>
---
 examples/ipsec-secgw/event_helper.c |   4 +-
 examples/ipsec-secgw/event_helper.h |  14 ++
 examples/ipsec-secgw/ipsec-secgw.c  | 341 +++++++++++++++++++++++++++++++++++-
 examples/ipsec-secgw/ipsec.h        |  11 ++
 examples/ipsec-secgw/sa.c           |  11 --
 5 files changed, 365 insertions(+), 16 deletions(-)

diff --git a/examples/ipsec-secgw/event_helper.c b/examples/ipsec-secgw/event_helper.c
index 9719ab4..54a98c9 100644
--- a/examples/ipsec-secgw/event_helper.c
+++ b/examples/ipsec-secgw/event_helper.c
@@ -966,6 +966,8 @@ 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;
+
 	/* Parse the passed list and see if we have matching capabilities */
 
 	/* Initialize the pointer used to traverse the list */
@@ -1625,7 +1627,7 @@ eh_launch_worker(struct eh_conf *conf, struct eh_app_worker_params *app_wrkr,
 	}
 
 	/* Get eventmode conf */
-	em_conf = (struct eventmode_conf *)(conf->mode_params);
+	em_conf = conf->mode_params;
 
 	/* Get core ID */
 	lcore_id = rte_lcore_id();
diff --git a/examples/ipsec-secgw/event_helper.h b/examples/ipsec-secgw/event_helper.h
index 15a7bd6..cf5d346 100644
--- a/examples/ipsec-secgw/event_helper.h
+++ b/examples/ipsec-secgw/event_helper.h
@@ -74,6 +74,14 @@ 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 dev params */
 struct eventdev_params {
 	uint8_t eventdev_id;
@@ -183,6 +191,10 @@ struct eh_conf {
 		 */
 	void *mode_params;
 		/**< Mode specific parameters */
+
+		/** Application specific params */
+	enum eh_ipsec_mode_types ipsec_mode;
+		/**< Mode of ipsec run */
 };
 
 /* Workers registered by the application */
@@ -194,6 +206,8 @@ 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 u64;
 	} cap;
diff --git a/examples/ipsec-secgw/ipsec-secgw.c b/examples/ipsec-secgw/ipsec-secgw.c
index d5e8fe5..f1cc3fb 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 +140,20 @@ 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_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_EVENT	"event"
+#define CMD_LINE_ARG_POLL	"poll"
+#define CMD_LINE_ARG_ORDERED	"ordered"
+#define CMD_LINE_ARG_ATOMIC	"atomic"
+#define CMD_LINE_ARG_PARALLEL	"parallel"
+
 enum {
 	/* long options mapped to a short option */
 
@@ -149,6 +164,8 @@ 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_TX_OFFLOAD_NUM,
 	CMD_LINE_OPT_REASSEMBLE_NUM,
@@ -160,6 +177,8 @@ 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_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},
@@ -177,6 +196,7 @@ static int32_t numa_on = 1; /**< NUMA is enabled by default. */
 static uint32_t nb_lcores;
 static uint32_t single_sa;
 static uint32_t single_sa_idx;
+static uint32_t schedule_type;
 
 /*
  * RX/TX HW offload capabilities to enable/use on ethernet ports.
@@ -1185,7 +1205,7 @@ main_loop(__attribute__((unused)) void *dummy)
 }
 
 static int32_t
-check_params(void)
+check_params(struct eh_conf *eh_conf)
 {
 	uint8_t lcore;
 	uint16_t portid;
@@ -1220,6 +1240,14 @@ check_params(void)
 			return -1;
 		}
 	}
+
+	if (eh_conf->mode == EH_PKT_TRANSFER_MODE_POLL) {
+		if (schedule_type) {
+			printf("error: option --schedule-type applies only to event mode\n");
+			return -1;
+		}
+	}
+
 	return 0;
 }
 
@@ -1277,6 +1305,8 @@ print_usage(const char *prgname)
 		" --config (port,queue,lcore)[,(port,queue,lcore)]"
 		" [--single-sa SAIDX]"
 		" [--cryptodev_mask MASK]"
+		" [--transfer-mode MODE]"
+		" [--schedule-type TYPE]"
 		" [--" 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 +1328,14 @@ 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"
+		"               \"poll\"  : Packet transfer via polling (default)\n"
+		"               \"event\" : Packet transfer via event device\n"
+		"  --schedule-type TYPE queue schedule type, used only when\n"
+		"                       transfer mode is set to event\n"
+		"               \"ordered\"  : Ordered (default)\n"
+		"               \"atomic\"   : Atomic\n"
+		"               \"parallel\" : Parallel\n"
 		"  --" CMD_LINE_OPT_RX_OFFLOAD
 		": bitmask of the RX HW offload capabilities to enable/use\n"
 		"                         (DEV_RX_OFFLOAD_*)\n"
@@ -1432,8 +1470,45 @@ print_app_sa_prm(const struct app_sa_prm *prm)
 	printf("Frag TTL: %" PRIu64 " ns\n", frag_ttl_ns);
 }
 
+static int
+parse_transfer_mode(struct eh_conf *conf, const char *optarg)
+{
+	if (!strcmp(CMD_LINE_ARG_POLL, optarg))
+		conf->mode = EH_PKT_TRANSFER_MODE_POLL;
+	else if (!strcmp(CMD_LINE_ARG_EVENT, optarg))
+		conf->mode = EH_PKT_TRANSFER_MODE_EVENT;
+	else {
+		printf("Unsupported packet transfer mode\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+parse_schedule_type(struct eh_conf *conf, const char *optarg)
+{
+	struct eventmode_conf *em_conf = NULL;
+
+	/* Get eventmode conf */
+	em_conf = conf->mode_params;
+
+	if (!strcmp(CMD_LINE_ARG_ORDERED, optarg))
+		em_conf->ext_params.sched_type = RTE_SCHED_TYPE_ORDERED;
+	else if (!strcmp(CMD_LINE_ARG_ATOMIC, optarg))
+		em_conf->ext_params.sched_type = RTE_SCHED_TYPE_ATOMIC;
+	else if (!strcmp(CMD_LINE_ARG_PARALLEL, optarg))
+		em_conf->ext_params.sched_type = RTE_SCHED_TYPE_PARALLEL;
+	else {
+		printf("Unsupported queue schedule type\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int32_t
-parse_args(int32_t argc, char **argv)
+parse_args(int32_t argc, char **argv, struct eh_conf *eh_conf)
 {
 	int opt;
 	int64_t ret;
@@ -1522,6 +1597,7 @@ parse_args(int32_t argc, char **argv)
 			/* else */
 			single_sa = 1;
 			single_sa_idx = ret;
+			eh_conf->ipsec_mode = EH_IPSEC_MODE_TYPE_DRIVER;
 			printf("Configured with single SA index %u\n",
 					single_sa_idx);
 			break;
@@ -1536,6 +1612,26 @@ 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;
+			}
+			schedule_type = 1;
+			break;
+
 		case CMD_LINE_OPT_RX_OFFLOAD_NUM:
 			ret = parse_mask(optarg, &dev_rx_offload);
 			if (ret != 0) {
@@ -2450,16 +2546,176 @@ create_default_ipsec_flow(uint16_t port_id, uint64_t rx_offloads)
 		port_id);
 }
 
+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;
+
+	/* 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 = 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 = 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) {
+		printf("\n\nSignal %d received, preparing to exit...\n",
+				signum);
+		force_quit = true;
+	}
+}
+
+static void
+inline_sessions_free(struct sa_ctx *sa_ctx)
+{
+	struct rte_ipsec_session *ips;
+	struct ipsec_sa *sa;
+	int32_t i, ret;
+
+	for (i = 0; i < IPSEC_SA_MAX_ENTRIES; i++) {
+
+		sa = &sa_ctx->sa[i];
+		if (!sa->spi)
+			continue;
+
+		ips = ipsec_get_primary_session(sa);
+		if (ips->type != RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL &&
+		    ips->type != RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO)
+			continue;
+
+		ret = rte_security_session_destroy(
+				rte_eth_dev_get_sec_ctx(sa->portid),
+				ips->security.ses);
+		if (ret)
+			RTE_LOG(ERR, IPSEC, "Failed to destroy security "
+					    "session type %d, spi %d\n",
+					    ips->type, sa->spi);
+	}
+}
+
+static void
+ev_mode_sess_verify(struct sa_ctx *sa_ctx)
+{
+	struct rte_ipsec_session *ips;
+	struct ipsec_sa *sa;
+	int32_t i;
+
+	if (!sa_ctx)
+		return;
+
+	for (i = 0; i < IPSEC_SA_MAX_ENTRIES; i++) {
+
+		sa = &sa_ctx->sa[i];
+		if (!sa->spi)
+			continue;
+
+		ips = ipsec_get_primary_session(sa);
+		if (ips->type != RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL)
+			rte_exit(EXIT_FAILURE, "Event mode supports only "
+				 "inline protocol sessions\n");
+	}
+
+}
+
 int32_t
 main(int32_t argc, char **argv)
 {
 	int32_t ret;
 	uint32_t lcore_id;
+	uint32_t cdev_id;
 	uint32_t i;
 	uint8_t socket_id;
 	uint16_t portid;
 	uint64_t req_rx_offloads[RTE_MAX_ETHPORTS];
 	uint64_t req_tx_offloads[RTE_MAX_ETHPORTS];
+	struct eh_conf *eh_conf = NULL;
 	size_t sess_sz;
 
 	/* init EAL */
@@ -2469,8 +2725,17 @@ 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");
 
@@ -2487,7 +2752,7 @@ main(int32_t argc, char **argv)
 		rte_exit(EXIT_FAILURE, "Invalid unprotected portmask 0x%x\n",
 				unprotected_port_mask);
 
-	if (check_params() < 0)
+	if (check_params(eh_conf) < 0)
 		rte_exit(EXIT_FAILURE, "check_params failed\n");
 
 	ret = init_lcore_rx_queues();
@@ -2529,6 +2794,18 @@ main(int32_t argc, char **argv)
 
 	cryptodevs_init();
 
+	/*
+	 * Set the enabled port mask in helper config for use by helper
+	 * sub-system. This will be used while initializing 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);
+
 	/* start ports */
 	RTE_ETH_FOREACH_DEV(portid) {
 		if ((enabled_port_mask & (1 << portid)) == 0)
@@ -2576,6 +2853,18 @@ main(int32_t argc, char **argv)
 			sp4_init(&socket_ctx[socket_id], socket_id);
 			sp6_init(&socket_ctx[socket_id], socket_id);
 			rt_init(&socket_ctx[socket_id], socket_id);
+
+			/*
+			 * Event mode currently supports only inline protocol
+			 * sessions. If there are other types of sessions
+			 * configured then exit with error.
+			 */
+			if (eh_conf->mode == EH_PKT_TRANSFER_MODE_EVENT) {
+				ev_mode_sess_verify(
+						socket_ctx[socket_id].sa_in);
+				ev_mode_sess_verify(
+						socket_ctx[socket_id].sa_out);
+			}
 		}
 	}
 
@@ -2583,10 +2872,54 @@ main(int32_t argc, char **argv)
 
 	/* launch per-lcore init on every lcore */
 	rte_eal_mp_remote_launch(main_loop, NULL, 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);
+
+	/* Destroy inline inbound and outbound sessions */
+	for (i = 0; i < NB_SOCKETS && i < rte_socket_count(); i++) {
+		socket_id = rte_socket_id_by_idx(i);
+		inline_sessions_free(socket_ctx[socket_id].sa_in);
+		inline_sessions_free(socket_ctx[socket_id].sa_out);
+	}
+
+	for (cdev_id = 0; cdev_id < rte_cryptodev_count(); cdev_id++) {
+		printf("Closing cryptodev %d...", cdev_id);
+		rte_cryptodev_stop(cdev_id);
+		rte_cryptodev_close(cdev_id);
+		printf(" Done\n");
+	}
+
+	RTE_ETH_FOREACH_DEV(portid) {
+		if ((enabled_port_mask & (1 << portid)) == 0)
+			continue;
+
+		printf("Closing port %d...", portid);
+		if (flow_info_tbl[portid].rx_def_flow) {
+			struct rte_flow_error err;
+
+			ret = rte_flow_destroy(portid,
+				flow_info_tbl[portid].rx_def_flow, &err);
+			if (ret)
+				RTE_LOG(ERR, IPSEC, "Failed to destroy flow "
+					" for port %u, err msg: %s\n", portid,
+					err.message);
+		}
+		rte_eth_dev_stop(portid);
+		rte_eth_dev_close(portid);
+		printf(" Done\n");
+	}
+	printf("Bye...\n");
+
 	return 0;
 }
diff --git a/examples/ipsec-secgw/ipsec.h b/examples/ipsec-secgw/ipsec.h
index 28ff07d..0539aec 100644
--- a/examples/ipsec-secgw/ipsec.h
+++ b/examples/ipsec-secgw/ipsec.h
@@ -153,6 +153,17 @@ struct ipsec_sa {
 	struct rte_security_session_conf sess_conf;
 } __rte_cache_aligned;
 
+struct sa_ctx {
+	void *satbl; /* pointer to array of rte_ipsec_sa objects*/
+	struct ipsec_sa sa[IPSEC_SA_MAX_ENTRIES];
+	union {
+		struct {
+			struct rte_crypto_sym_xform a;
+			struct rte_crypto_sym_xform b;
+		};
+	} xf[IPSEC_SA_MAX_ENTRIES];
+};
+
 struct ipsec_mbuf_metadata {
 	struct ipsec_sa *sa;
 	struct rte_crypto_op cop;
diff --git a/examples/ipsec-secgw/sa.c b/examples/ipsec-secgw/sa.c
index c75a5a1..2ec3e17 100644
--- a/examples/ipsec-secgw/sa.c
+++ b/examples/ipsec-secgw/sa.c
@@ -781,17 +781,6 @@ print_one_sa_rule(const struct ipsec_sa *sa, int inbound)
 	printf("\n");
 }
 
-struct sa_ctx {
-	void *satbl; /* pointer to array of rte_ipsec_sa objects*/
-	struct ipsec_sa sa[IPSEC_SA_MAX_ENTRIES];
-	union {
-		struct {
-			struct rte_crypto_sym_xform a;
-			struct rte_crypto_sym_xform b;
-		};
-	} xf[IPSEC_SA_MAX_ENTRIES];
-};
-
 static struct sa_ctx *
 sa_create(const char *name, int32_t socket_id)
 {
-- 
2.7.4