[dpdk-dev] [PATCH 33/37] net/txgbe: add IPsec context creation

[Jiawen Wu <jiawenwu@trustnetic.com>]

Initialize securiry context, and add support to get
security capabilities.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
 doc/guides/nics/features/txgbe.ini |   1 +
 drivers/net/txgbe/meson.build      |   3 +-
 drivers/net/txgbe/txgbe_ethdev.c   |  13 +++
 drivers/net/txgbe/txgbe_ethdev.h   |   3 +
 drivers/net/txgbe/txgbe_ipsec.c    | 181 +++++++++++++++++++++++++++++
 drivers/net/txgbe/txgbe_ipsec.h    |  13 +++
 6 files changed, 213 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/txgbe/txgbe_ipsec.c
 create mode 100644 drivers/net/txgbe/txgbe_ipsec.h

diff --git a/doc/guides/nics/features/txgbe.ini b/doc/guides/nics/features/txgbe.ini
index d6705f7aa..54daa382a 100644
--- a/doc/guides/nics/features/txgbe.ini
+++ b/doc/guides/nics/features/txgbe.ini
@@ -29,6 +29,7 @@ Flow control         = Y
 Flow API             = Y
 Rate limitation      = Y
 Traffic mirroring    = Y
+Inline crypto        = Y
 CRC offload          = P
 VLAN offload         = P
 QinQ offload         = P
diff --git a/drivers/net/txgbe/meson.build b/drivers/net/txgbe/meson.build
index 352baad8b..f6a51a998 100644
--- a/drivers/net/txgbe/meson.build
+++ b/drivers/net/txgbe/meson.build
@@ -8,13 +8,14 @@ sources = files(
 	'txgbe_ethdev.c',
 	'txgbe_fdir.c',
 	'txgbe_flow.c',
+	'txgbe_ipsec.c',
 	'txgbe_ptypes.c',
 	'txgbe_pf.c',
 	'txgbe_rxtx.c',
 	'txgbe_tm.c',
 )
 
-deps += ['hash']
+deps += ['hash', 'security']
 
 includes += include_directories('base')
 
diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c
index c92a4aa5f..c0582e264 100644
--- a/drivers/net/txgbe/txgbe_ethdev.c
+++ b/drivers/net/txgbe/txgbe_ethdev.c
@@ -16,6 +16,9 @@
 #include <rte_memory.h>
 #include <rte_eal.h>
 #include <rte_alarm.h>
+#ifdef RTE_LIB_SECURITY
+#include <rte_security_driver.h>
+#endif
 
 #include "txgbe_logs.h"
 #include "base/txgbe.h"
@@ -549,6 +552,12 @@ eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 	/* Unlock any pending hardware semaphore */
 	txgbe_swfw_lock_reset(hw);
 
+#ifdef RTE_LIB_SECURITY
+	/* Initialize security_ctx only for primary process*/
+	if (txgbe_ipsec_ctx_create(eth_dev))
+		return -ENOMEM;
+#endif
+
 	/* Initialize DCB configuration*/
 	memset(dcb_config, 0, sizeof(struct txgbe_dcb_config));
 	txgbe_dcb_init(hw, dcb_config);
@@ -1971,6 +1980,10 @@ txgbe_dev_close(struct rte_eth_dev *dev)
 	/* Remove all Traffic Manager configuration */
 	txgbe_tm_conf_uninit(dev);
 
+#ifdef RTE_LIB_SECURITY
+	rte_free(dev->security_ctx);
+#endif
+
 	return ret;
 }
 
diff --git a/drivers/net/txgbe/txgbe_ethdev.h b/drivers/net/txgbe/txgbe_ethdev.h
index 2d15e1ac3..1e7fa1f87 100644
--- a/drivers/net/txgbe/txgbe_ethdev.h
+++ b/drivers/net/txgbe/txgbe_ethdev.h
@@ -9,6 +9,9 @@
 
 #include "base/txgbe.h"
 #include "txgbe_ptypes.h"
+#ifdef RTE_LIB_SECURITY
+#include "txgbe_ipsec.h"
+#endif
 #include <rte_flow.h>
 #include <rte_time.h>
 #include <rte_hash.h>
diff --git a/drivers/net/txgbe/txgbe_ipsec.c b/drivers/net/txgbe/txgbe_ipsec.c
new file mode 100644
index 000000000..b21bba237
--- /dev/null
+++ b/drivers/net/txgbe/txgbe_ipsec.c
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2015-2020
+ */
+
+#include <rte_ethdev_pci.h>
+#include <rte_ip.h>
+#include <rte_jhash.h>
+#include <rte_security_driver.h>
+#include <rte_cryptodev.h>
+#include <rte_flow.h>
+
+#include "base/txgbe.h"
+#include "txgbe_ethdev.h"
+#include "txgbe_ipsec.h"
+
+static const struct rte_security_capability *
+txgbe_crypto_capabilities_get(void *device __rte_unused)
+{
+	static const struct rte_cryptodev_capabilities
+	aes_gcm_gmac_crypto_capabilities[] = {
+		{	/* AES GMAC (128-bit) */
+			.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+			{.sym = {
+				.xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
+				{.auth = {
+					.algo = RTE_CRYPTO_AUTH_AES_GMAC,
+					.block_size = 16,
+					.key_size = {
+						.min = 16,
+						.max = 16,
+						.increment = 0
+					},
+					.digest_size = {
+						.min = 16,
+						.max = 16,
+						.increment = 0
+					},
+					.iv_size = {
+						.min = 12,
+						.max = 12,
+						.increment = 0
+					}
+				}, }
+			}, }
+		},
+		{	/* AES GCM (128-bit) */
+			.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+			{.sym = {
+				.xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
+				{.aead = {
+					.algo = RTE_CRYPTO_AEAD_AES_GCM,
+					.block_size = 16,
+					.key_size = {
+						.min = 16,
+						.max = 16,
+						.increment = 0
+					},
+					.digest_size = {
+						.min = 16,
+						.max = 16,
+						.increment = 0
+					},
+					.aad_size = {
+						.min = 0,
+						.max = 65535,
+						.increment = 1
+					},
+					.iv_size = {
+						.min = 12,
+						.max = 12,
+						.increment = 0
+					}
+				}, }
+			}, }
+		},
+		{
+			.op = RTE_CRYPTO_OP_TYPE_UNDEFINED,
+			{.sym = {
+				.xform_type = RTE_CRYPTO_SYM_XFORM_NOT_SPECIFIED
+			}, }
+		},
+	};
+
+	static const struct rte_security_capability
+	txgbe_security_capabilities[] = {
+		{ /* IPsec Inline Crypto ESP Transport Egress */
+			.action = RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO,
+			.protocol = RTE_SECURITY_PROTOCOL_IPSEC,
+			{.ipsec = {
+				.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
+				.mode = RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
+				.direction = RTE_SECURITY_IPSEC_SA_DIR_EGRESS,
+				.options = { 0 }
+			} },
+			.crypto_capabilities = aes_gcm_gmac_crypto_capabilities,
+			.ol_flags = RTE_SECURITY_TX_OLOAD_NEED_MDATA
+		},
+		{ /* IPsec Inline Crypto ESP Transport Ingress */
+			.action = RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO,
+			.protocol = RTE_SECURITY_PROTOCOL_IPSEC,
+			{.ipsec = {
+				.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
+				.mode = RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
+				.direction = RTE_SECURITY_IPSEC_SA_DIR_INGRESS,
+				.options = { 0 }
+			} },
+			.crypto_capabilities = aes_gcm_gmac_crypto_capabilities,
+			.ol_flags = 0
+		},
+		{ /* IPsec Inline Crypto ESP Tunnel Egress */
+			.action = RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO,
+			.protocol = RTE_SECURITY_PROTOCOL_IPSEC,
+			{.ipsec = {
+				.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
+				.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL,
+				.direction = RTE_SECURITY_IPSEC_SA_DIR_EGRESS,
+				.options = { 0 }
+			} },
+			.crypto_capabilities = aes_gcm_gmac_crypto_capabilities,
+			.ol_flags = RTE_SECURITY_TX_OLOAD_NEED_MDATA
+		},
+		{ /* IPsec Inline Crypto ESP Tunnel Ingress */
+			.action = RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO,
+			.protocol = RTE_SECURITY_PROTOCOL_IPSEC,
+			{.ipsec = {
+				.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
+				.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL,
+				.direction = RTE_SECURITY_IPSEC_SA_DIR_INGRESS,
+				.options = { 0 }
+			} },
+			.crypto_capabilities = aes_gcm_gmac_crypto_capabilities,
+			.ol_flags = 0
+		},
+		{
+			.action = RTE_SECURITY_ACTION_TYPE_NONE
+		}
+	};
+
+	return txgbe_security_capabilities;
+}
+
+static struct rte_security_ops txgbe_security_ops = {
+	.capabilities_get = txgbe_crypto_capabilities_get
+};
+
+static int
+txgbe_crypto_capable(struct rte_eth_dev *dev)
+{
+	struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+	uint32_t reg_i, reg, capable = 1;
+	/* test if rx crypto can be enabled and then write back initial value*/
+	reg_i = rd32(hw, TXGBE_SECRXCTL);
+	wr32m(hw, TXGBE_SECRXCTL, TXGBE_SECRXCTL_ODSA, 0);
+	reg = rd32m(hw, TXGBE_SECRXCTL, TXGBE_SECRXCTL_ODSA);
+	if (reg != 0)
+		capable = 0;
+	wr32(hw, TXGBE_SECRXCTL, reg_i);
+	return capable;
+}
+
+int
+txgbe_ipsec_ctx_create(struct rte_eth_dev *dev)
+{
+	struct rte_security_ctx *ctx = NULL;
+
+	if (txgbe_crypto_capable(dev)) {
+		ctx = rte_malloc("rte_security_instances_ops",
+				 sizeof(struct rte_security_ctx), 0);
+		if (ctx) {
+			ctx->device = (void *)dev;
+			ctx->ops = &txgbe_security_ops;
+			ctx->sess_cnt = 0;
+			dev->security_ctx = ctx;
+		} else {
+			return -ENOMEM;
+		}
+	}
+	if (rte_security_dynfield_register() < 0)
+		return -rte_errno;
+	return 0;
+}
diff --git a/drivers/net/txgbe/txgbe_ipsec.h b/drivers/net/txgbe/txgbe_ipsec.h
new file mode 100644
index 000000000..f58ebab3d
--- /dev/null
+++ b/drivers/net/txgbe/txgbe_ipsec.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2015-2020
+ */
+
+#ifndef TXGBE_IPSEC_H_
+#define TXGBE_IPSEC_H_
+
+#include <rte_ethdev_core.h>
+#include <rte_security.h>
+
+int txgbe_ipsec_ctx_create(struct rte_eth_dev *dev);
+
+#endif /*TXGBE_IPSEC_H_*/
-- 
2.18.4