[dpdk-dev] [PATCH v2 2/7] examples/ip_pipeline: add cryptodev

[Fan Zhang <roy.fan.zhang@intel.com>]

From: "Zhang, Roy Fan" <roy.fan.zhang@intel.com>

This patch adds symmetric crypto device abstraction to ip_pipeline
sameple application.

Signed-off-by: Zhang, Roy Fan <roy.fan.zhang@intel.com>
Acked-by: Dumitrescu, Cristian <cristian.dumitrescu@intel.com>
---
 examples/ip_pipeline/Makefile    |   1 +
 examples/ip_pipeline/cryptodev.c | 117 +++++++++++++++++++++++++++++++++++++++
 examples/ip_pipeline/cryptodev.h |  43 ++++++++++++++
 examples/ip_pipeline/main.c      |   9 +++
 examples/ip_pipeline/meson.build |   3 +-
 5 files changed, 172 insertions(+), 1 deletion(-)
 create mode 100644 examples/ip_pipeline/cryptodev.c
 create mode 100644 examples/ip_pipeline/cryptodev.h

diff --git a/examples/ip_pipeline/Makefile b/examples/ip_pipeline/Makefile
index 3fb98ce3e..41ba7df2c 100644
--- a/examples/ip_pipeline/Makefile
+++ b/examples/ip_pipeline/Makefile
@@ -18,6 +18,7 @@ SRCS-y += swq.c
 SRCS-y += tap.c
 SRCS-y += thread.c
 SRCS-y += tmgr.c
+SRCS-y += cryptodev.c
 
 # Build using pkg-config variables if possible
 $(shell pkg-config --exists libdpdk)
diff --git a/examples/ip_pipeline/cryptodev.c b/examples/ip_pipeline/cryptodev.c
new file mode 100644
index 000000000..c4ba72bec
--- /dev/null
+++ b/examples/ip_pipeline/cryptodev.c
@@ -0,0 +1,117 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <rte_cryptodev.h>
+#include <rte_cryptodev_pmd.h>
+#include <rte_string_fns.h>
+
+#include "cryptodev.h"
+
+static struct cryptodev_list cryptodev_list;
+
+int
+cryptodev_init(void)
+{
+	TAILQ_INIT(&cryptodev_list);
+
+	return 0;
+}
+
+struct cryptodev *
+cryptodev_find(const char *name)
+{
+	struct cryptodev *cryptodev;
+
+	if (name == NULL)
+		return NULL;
+
+	TAILQ_FOREACH(cryptodev, &cryptodev_list, node)
+		if (strcmp(cryptodev->name, name) == 0)
+			return cryptodev;
+
+	return NULL;
+}
+
+struct cryptodev *
+cryptodev_next(struct cryptodev *cryptodev)
+{
+	return (cryptodev == NULL) ?
+			TAILQ_FIRST(&cryptodev_list) :
+			TAILQ_NEXT(cryptodev, node);
+}
+
+struct cryptodev *
+cryptodev_create(const char *name, struct cryptodev_params *params)
+{
+	struct rte_cryptodev_info dev_info;
+	struct rte_cryptodev_config dev_conf;
+	struct rte_cryptodev_qp_conf queue_conf;
+	struct cryptodev *cryptodev;
+	uint32_t dev_id, i;
+	uint32_t socket_id;
+	int status;
+
+	/* Check input params */
+	if ((name == NULL) ||
+		cryptodev_find(name) ||
+		(params->n_queues == 0) ||
+		(params->queue_size == 0))
+		return NULL;
+
+	if (params->dev_name) {
+		status = rte_cryptodev_get_dev_id(params->dev_name);
+		if (status == -1)
+			return NULL;
+
+		dev_id = (uint32_t)status;
+	} else {
+		if (rte_cryptodev_pmd_is_valid_dev(params->dev_id) == 0)
+			return NULL;
+
+		dev_id = params->dev_id;
+	}
+
+	socket_id = rte_cryptodev_socket_id(dev_id);
+	rte_cryptodev_info_get(dev_id, &dev_info);
+
+	if (dev_info.max_nb_queue_pairs < params->n_queues)
+		return NULL;
+	if (dev_info.feature_flags & RTE_CRYPTODEV_FF_HW_ACCELERATED)
+		return NULL;
+
+	dev_conf.socket_id = socket_id;
+	dev_conf.nb_queue_pairs = params->n_queues;
+
+	status = rte_cryptodev_configure(dev_id, &dev_conf);
+	if (status < 0)
+		return NULL;
+
+	queue_conf.nb_descriptors = params->queue_size;
+	for (i = 0; i < params->n_queues; i++) {
+		status = rte_cryptodev_queue_pair_setup(dev_id, i,
+				&queue_conf, socket_id, NULL);
+		if (status < 0)
+			return NULL;
+	}
+
+	if (rte_cryptodev_start(dev_id) < 0)
+		return NULL;
+
+	cryptodev = calloc(1, sizeof(struct cryptodev));
+	if (cryptodev == NULL) {
+		rte_cryptodev_stop(dev_id);
+		return NULL;
+	}
+
+	strlcpy(cryptodev->name, name, sizeof(cryptodev->name));
+	cryptodev->dev_id = dev_id;
+	cryptodev->n_queues = params->n_queues;
+
+	TAILQ_INSERT_TAIL(&cryptodev_list, cryptodev, node);
+
+	return cryptodev;
+}
diff --git a/examples/ip_pipeline/cryptodev.h b/examples/ip_pipeline/cryptodev.h
new file mode 100644
index 000000000..d06b3f2f1
--- /dev/null
+++ b/examples/ip_pipeline/cryptodev.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#ifndef _INCLUDE_SYM_C_H_
+#define _INCLUDE_SYM_C_H_
+
+#include <stdint.h>
+#include <sys/queue.h>
+
+#include <rte_cryptodev.h>
+
+#include "common.h"
+
+struct cryptodev {
+	TAILQ_ENTRY(cryptodev) node;
+	char name[NAME_SIZE];
+	uint16_t dev_id;
+	uint32_t n_queues;
+};
+
+TAILQ_HEAD(cryptodev_list, cryptodev);
+
+int
+cryptodev_init(void);
+
+struct cryptodev *
+cryptodev_find(const char *name);
+
+struct cryptodev *
+cryptodev_next(struct cryptodev *cryptodev);
+
+struct cryptodev_params {
+	const char *dev_name;
+	uint32_t dev_id; /**< Valid only when *dev_name* is NULL. */
+	uint32_t n_queues;
+	uint32_t queue_size;
+};
+
+struct cryptodev *
+cryptodev_create(const char *name, struct cryptodev_params *params);
+
+#endif
diff --git a/examples/ip_pipeline/main.c b/examples/ip_pipeline/main.c
index a69faceef..97d1e91c2 100644
--- a/examples/ip_pipeline/main.c
+++ b/examples/ip_pipeline/main.c
@@ -14,6 +14,7 @@
 #include "cli.h"
 #include "conn.h"
 #include "kni.h"
+#include "cryptodev.h"
 #include "link.h"
 #include "mempool.h"
 #include "pipeline.h"
@@ -210,6 +211,14 @@ main(int argc, char **argv)
 		return status;
 	}
 
+	/* Sym Crypto */
+	status = cryptodev_init();
+	if (status) {
+		printf("Error: Cryptodev initialization failed (%d)\n",
+				status);
+		return status;
+	}
+
 	/* Action */
 	status = port_in_action_profile_init();
 	if (status) {
diff --git a/examples/ip_pipeline/meson.build b/examples/ip_pipeline/meson.build
index a9f2ea447..5e5fe6479 100644
--- a/examples/ip_pipeline/meson.build
+++ b/examples/ip_pipeline/meson.build
@@ -21,5 +21,6 @@ sources = files(
 	'swq.c',
 	'tap.c',
 	'thread.c',
-	'tmgr.c'
+	'tmgr.c',
+	'cryptodev.c'
 )
-- 
2.13.6