[dpdk-dev] [PATCH 28/32] net/ngbe: add IPsec context creation

[Jiawen Wu <jiawenwu@trustnetic.com>]

Initialize securiry context, and support to get security
capabilities.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
 doc/guides/nics/features/ngbe.ini |   1 +
 drivers/net/ngbe/meson.build      |   3 +-
 drivers/net/ngbe/ngbe_ethdev.c    |  10 ++
 drivers/net/ngbe/ngbe_ethdev.h    |   4 +
 drivers/net/ngbe/ngbe_ipsec.c     | 178 ++++++++++++++++++++++++++++++
 5 files changed, 195 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/ngbe/ngbe_ipsec.c

diff --git a/doc/guides/nics/features/ngbe.ini b/doc/guides/nics/features/ngbe.ini
index 56d5d71ea8..facdb5f006 100644
--- a/doc/guides/nics/features/ngbe.ini
+++ b/doc/guides/nics/features/ngbe.ini
@@ -23,6 +23,7 @@ RSS reta update      = Y
 SR-IOV               = Y
 VLAN filter          = Y
 Flow control         = Y
+Inline crypto        = Y
 CRC offload          = P
 VLAN offload         = P
 QinQ offload         = P
diff --git a/drivers/net/ngbe/meson.build b/drivers/net/ngbe/meson.build
index b276ec3341..f222595b19 100644
--- a/drivers/net/ngbe/meson.build
+++ b/drivers/net/ngbe/meson.build
@@ -12,12 +12,13 @@ objs = [base_objs]
 
 sources = files(
         'ngbe_ethdev.c',
+        'ngbe_ipsec.c',
         'ngbe_ptypes.c',
         'ngbe_pf.c',
         'ngbe_rxtx.c',
 )
 
-deps += ['hash']
+deps += ['hash', 'security']
 
 includes += include_directories('base')
 
diff --git a/drivers/net/ngbe/ngbe_ethdev.c b/drivers/net/ngbe/ngbe_ethdev.c
index 4eaf9b0724..b0e0f7411e 100644
--- a/drivers/net/ngbe/ngbe_ethdev.c
+++ b/drivers/net/ngbe/ngbe_ethdev.c
@@ -430,6 +430,12 @@ eth_ngbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 	/* Unlock any pending hardware semaphore */
 	ngbe_swfw_lock_reset(hw);
 
+#ifdef RTE_LIB_SECURITY
+	/* Initialize security_ctx only for primary process*/
+	if (ngbe_ipsec_ctx_create(eth_dev))
+		return -ENOMEM;
+#endif
+
 	/* Get Hardware Flow Control setting */
 	hw->fc.requested_mode = ngbe_fc_full;
 	hw->fc.current_mode = ngbe_fc_full;
@@ -1282,6 +1288,10 @@ ngbe_dev_close(struct rte_eth_dev *dev)
 	rte_free(dev->data->hash_mac_addrs);
 	dev->data->hash_mac_addrs = NULL;
 
+#ifdef RTE_LIB_SECURITY
+	rte_free(dev->security_ctx);
+#endif
+
 	return ret;
 }
 
diff --git a/drivers/net/ngbe/ngbe_ethdev.h b/drivers/net/ngbe/ngbe_ethdev.h
index aacc0b68b2..9eda024d65 100644
--- a/drivers/net/ngbe/ngbe_ethdev.h
+++ b/drivers/net/ngbe/ngbe_ethdev.h
@@ -264,6 +264,10 @@ void ngbe_pf_mbx_process(struct rte_eth_dev *eth_dev);
 
 int ngbe_pf_host_configure(struct rte_eth_dev *eth_dev);
 
+#ifdef RTE_LIB_SECURITY
+int ngbe_ipsec_ctx_create(struct rte_eth_dev *dev);
+#endif
+
 /* High threshold controlling when to start sending XOFF frames. */
 #define NGBE_FC_XOFF_HITH              128 /*KB*/
 /* Low threshold controlling when to start sending XON frames. */
diff --git a/drivers/net/ngbe/ngbe_ipsec.c b/drivers/net/ngbe/ngbe_ipsec.c
new file mode 100644
index 0000000000..5f8b0bab29
--- /dev/null
+++ b/drivers/net/ngbe/ngbe_ipsec.c
@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018-2021 Beijing WangXun Technology Co., Ltd.
+ * Copyright(c) 2010-2017 Intel Corporation
+ */
+
+#include <ethdev_pci.h>
+#include <rte_security_driver.h>
+#include <rte_cryptodev.h>
+
+#include "base/ngbe.h"
+#include "ngbe_ethdev.h"
+
+static const struct rte_security_capability *
+ngbe_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
+	ngbe_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 ngbe_security_capabilities;
+}
+
+static struct rte_security_ops ngbe_security_ops = {
+	.capabilities_get = ngbe_crypto_capabilities_get
+};
+
+static int
+ngbe_crypto_capable(struct rte_eth_dev *dev)
+{
+	struct ngbe_hw *hw = ngbe_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, NGBE_SECRXCTL);
+	wr32m(hw, NGBE_SECRXCTL, NGBE_SECRXCTL_ODSA, 0);
+	reg = rd32m(hw, NGBE_SECRXCTL, NGBE_SECRXCTL_ODSA);
+	if (reg != 0)
+		capable = 0;
+	wr32(hw, NGBE_SECRXCTL, reg_i);
+	return capable;
+}
+
+int
+ngbe_ipsec_ctx_create(struct rte_eth_dev *dev)
+{
+	struct rte_security_ctx *ctx = NULL;
+
+	if (ngbe_crypto_capable(dev)) {
+		ctx = rte_malloc("rte_security_instances_ops",
+				 sizeof(struct rte_security_ctx), 0);
+		if (ctx) {
+			ctx->device = (void *)dev;
+			ctx->ops = &ngbe_security_ops;
+			ctx->sess_cnt = 0;
+			dev->security_ctx = ctx;
+		} else {
+			return -ENOMEM;
+		}
+	}
+	if (rte_security_dynfield_register() < 0)
+		return -rte_errno;
+	return 0;
+}
-- 
2.21.0.windows.1