diff --git a/MAINTAINERS b/MAINTAINERS
index 6b7625f..246ddd7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8973,6 +8973,16 @@ F:	net/ipv6/
 F:	include/net/ip*
 F:	arch/x86/net/*
 
+NETWORKING [TLS]
+M:	Ilya Lesokhin <ilyal@mellanox.com>
+M:	Aviad Yehezkel <aviadye@mellanox.com>
+M:	Dave Watson <davejwatson@fb.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	net/tls/*
+F:	include/uapi/linux/tls.h
+F:	include/net/tls.h
+
 NETWORKING [IPSEC]
 M:	Steffen Klassert <steffen.klassert@secunet.com>
 M:	Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 0820274..8b13db5 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -334,6 +334,7 @@ struct ucred {
 #define SOL_ALG		279
 #define SOL_NFC		280
 #define SOL_KCM		281
+#define SOL_TLS		282
 
 /* IPX options */
 #define IPX_TYPE	1
diff --git a/include/net/tls.h b/include/net/tls.h
new file mode 100644
index 0000000..b20fd2f
--- /dev/null
+++ b/include/net/tls.h
@@ -0,0 +1,222 @@
+/*
+ * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016-2017, Dave Watson <davejwatson@fb.com>. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _TLS_OFFLOAD_H
+#define _TLS_OFFLOAD_H
+
+#include <linux/types.h>
+
+#include <uapi/linux/tls.h>
+
+
+/* Maximum data size carried in a TLS record */
+#define TLS_MAX_PAYLOAD_SIZE		((size_t)1 << 14)
+
+#define TLS_HEADER_SIZE			5
+#define TLS_NONCE_OFFSET		TLS_HEADER_SIZE
+
+#define TLS_CRYPTO_INFO_READY(info)	((info)->cipher_type)
+
+#define TLS_RECORD_TYPE_DATA		0x17
+
+#define TLS_AAD_SPACE_SIZE		13
+
+struct tls_sw_context {
+	struct crypto_aead *aead_send;
+
+	/* Sending context */
+	char aad_space[TLS_AAD_SPACE_SIZE];
+
+	unsigned int sg_plaintext_size;
+	int sg_plaintext_num_elem;
+	struct scatterlist sg_plaintext_data[MAX_SKB_FRAGS];
+
+	unsigned int sg_encrypted_size;
+	int sg_encrypted_num_elem;
+	struct scatterlist sg_encrypted_data[MAX_SKB_FRAGS];
+
+	/* AAD | sg_plaintext_data | sg_tag */
+	struct scatterlist sg_aead_in[2];
+	/* AAD | sg_encrypted_data (data contain overhead for hdr&iv&tag) */
+	struct scatterlist sg_aead_out[2];
+};
+
+enum {
+	TLS_PENDING_CLOSED_RECORD
+};
+
+struct tls_context {
+	union {
+		struct tls_crypto_info crypto_send;
+		struct tls12_crypto_info_aes_gcm_128 crypto_send_aes_gcm_128;
+	};
+
+	void *priv_ctx;
+
+	u16 prepend_size;
+	u16 tag_size;
+	u16 overhead_size;
+	u16 iv_size;
+	char *iv;
+	u16 rec_seq_size;
+	char *rec_seq;
+
+	struct scatterlist *partially_sent_record;
+	u16 partially_sent_offset;
+	unsigned long flags;
+
+	u16 pending_open_record_frags;
+	int (*push_pending_record)(struct sock *sk, int flags);
+
+	void (*sk_write_space)(struct sock *sk);
+	void (*sk_destruct)(struct sock *sk);
+
+	void (*sk_proto_close)(struct sock *sk, long timeout);
+
+	int  (*setsockopt)(struct sock *sk, int level,
+			   int optname, char __user *optval,
+			   unsigned int optlen);
+	int  (*getsockopt)(struct sock *sk, int level,
+			   int optname, char __user *optval,
+			   int __user *optlen);
+};
+
+int tls_sk_query(struct sock *sk, int optname, char __user *optval,
+		int __user *optlen);
+int tls_sk_attach(struct sock *sk, int optname, char __user *optval,
+		  unsigned int optlen);
+
+
+int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx);
+int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
+int tls_sw_sendpage(struct sock *sk, struct page *page,
+		    int offset, size_t size, int flags);
+void tls_sw_close(struct sock *sk, long timeout);
+
+void tls_sk_destruct(struct sock *sk, struct tls_context *ctx);
+void tls_icsk_clean_acked(struct sock *sk);
+
+int tls_push_sg(struct sock *sk, struct tls_context *ctx,
+		struct scatterlist *sg, u16 first_offset,
+		int flags);
+int tls_push_pending_closed_record(struct sock *sk, struct tls_context *ctx,
+				   int flags, long *timeo);
+
+static inline bool tls_is_pending_closed_record(struct tls_context *ctx)
+{
+	return test_bit(TLS_PENDING_CLOSED_RECORD, &ctx->flags);
+}
+
+static inline bool tls_is_partially_sent_record(struct tls_context *ctx)
+{
+	return !!ctx->partially_sent_record;
+}
+
+static inline bool tls_is_pending_open_record(struct tls_context *tls_ctx)
+{
+	return tls_ctx->pending_open_record_frags;
+}
+
+static inline void tls_err_abort(struct sock *sk)
+{
+	sk->sk_err = -EBADMSG;
+	sk->sk_error_report(sk);
+}
+
+static inline bool tls_bigint_increment(unsigned char *seq, int len)
+{
+	int i;
+
+	for (i = len - 1; i >= 0; i--) {
+		++seq[i];
+		if (seq[i] != 0)
+			break;
+	}
+
+	return (i == -1);
+}
+
+static inline void tls_advance_record_sn(struct sock *sk,
+					 struct tls_context *ctx)
+{
+	if (tls_bigint_increment(ctx->rec_seq, ctx->rec_seq_size))
+		tls_err_abort(sk);
+	tls_bigint_increment(ctx->iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE,
+			     ctx->iv_size);
+}
+
+static inline void tls_fill_prepend(struct tls_context *ctx,
+			     char *buf,
+			     size_t plaintext_len,
+			     unsigned char record_type)
+{
+	size_t pkt_len, iv_size = ctx->iv_size;
+
+	pkt_len = plaintext_len + iv_size + ctx->tag_size;
+
+	/* we cover nonce explicit here as well, so buf should be of
+	 * size KTLS_DTLS_HEADER_SIZE + KTLS_DTLS_NONCE_EXPLICIT_SIZE
+	 */
+	buf[0] = record_type;
+	buf[1] = TLS_VERSION_MINOR(ctx->crypto_send.version);
+	buf[2] = TLS_VERSION_MAJOR(ctx->crypto_send.version);
+	/* we can use IV for nonce explicit according to spec */
+	buf[3] = pkt_len >> 8;
+	buf[4] = pkt_len & 0xFF;
+	memcpy(buf + TLS_NONCE_OFFSET,
+	       ctx->iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE, iv_size);
+}
+
+static inline struct tls_context *tls_get_ctx(const struct sock *sk)
+{
+	struct inet_connection_sock *icsk = inet_csk(sk);
+
+	return icsk->icsk_ulp_data;
+}
+
+static inline struct tls_sw_context *tls_sw_ctx(
+		const struct tls_context *tls_ctx)
+{
+	return (struct tls_sw_context *)tls_ctx->priv_ctx;
+}
+
+static inline struct tls_offload_context *tls_offload_ctx(
+		const struct tls_context *tls_ctx)
+{
+	return (struct tls_offload_context *)tls_ctx->priv_ctx;
+}
+
+int tls_proccess_cmsg(struct sock *sk, struct msghdr *msg,
+		      unsigned char *record_type);
+
+#endif /* _TLS_OFFLOAD_H */
diff --git a/include/uapi/linux/tls.h b/include/uapi/linux/tls.h
new file mode 100644
index 0000000..cc1d21d
--- /dev/null
+++ b/include/uapi/linux/tls.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _UAPI_LINUX_TLS_H
+#define _UAPI_LINUX_TLS_H
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <linux/socket.h>
+#include <linux/tcp.h>
+#include <net/tcp.h>
+
+/* TLS socket options */
+#define TLS_TX			1	/* Set transmit parameters */
+
+/* Supported versions */
+#define TLS_VERSION_MINOR(ver)	((ver) & 0xFF)
+#define TLS_VERSION_MAJOR(ver)	(((ver) >> 8) & 0xFF)
+
+#define TLS_VERSION_NUMBER(id)	((((id##_VERSION_MAJOR) & 0xFF) << 8) |	\
+				 ((id##_VERSION_MINOR) & 0xFF))
+
+#define TLS_1_2_VERSION_MAJOR	0x3
+#define TLS_1_2_VERSION_MINOR	0x3
+#define TLS_1_2_VERSION		TLS_VERSION_NUMBER(TLS_1_2)
+
+/* Supported ciphers */
+#define TLS_CIPHER_AES_GCM_128				51
+#define TLS_CIPHER_AES_GCM_128_IV_SIZE			8
+#define TLS_CIPHER_AES_GCM_128_KEY_SIZE		16
+#define TLS_CIPHER_AES_GCM_128_SALT_SIZE		4
+#define TLS_CIPHER_AES_GCM_128_TAG_SIZE		16
+#define TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE		8
+
+#define TLS_SET_RECORD_TYPE	1
+
+struct tls_crypto_info {
+	__u16 version;
+	__u16 cipher_type;
+};
+
+struct tls12_crypto_info_aes_gcm_128 {
+	struct tls_crypto_info info;
+	unsigned char iv[TLS_CIPHER_AES_GCM_128_IV_SIZE];
+	unsigned char key[TLS_CIPHER_AES_GCM_128_KEY_SIZE];
+	unsigned char salt[TLS_CIPHER_AES_GCM_128_SALT_SIZE];
+	unsigned char rec_seq[TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE];
+};
+
+#endif /* _UAPI_LINUX_TLS_H */
diff --git a/net/Kconfig b/net/Kconfig
index 102f781..7d57ef3 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -55,6 +55,7 @@ menu "Networking options"
 
 source "net/packet/Kconfig"
 source "net/unix/Kconfig"
+source "net/tls/Kconfig"
 source "net/xfrm/Kconfig"
 source "net/iucv/Kconfig"
 source "net/smc/Kconfig"
diff --git a/net/Makefile b/net/Makefile
index 9086ffb..bed80fa 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_LLC)		+= llc/
 obj-$(CONFIG_NET)		+= ethernet/ 802/ sched/ netlink/ bpf/
 obj-$(CONFIG_NETFILTER)		+= netfilter/
 obj-$(CONFIG_INET)		+= ipv4/
+obj-$(CONFIG_TLS)		+= tls/
 obj-$(CONFIG_XFRM)		+= xfrm/
 obj-$(CONFIG_UNIX)		+= unix/
 obj-$(CONFIG_NET)		+= ipv6/
diff --git a/net/tls/Kconfig b/net/tls/Kconfig
new file mode 100644
index 0000000..61e5329
--- /dev/null
+++ b/net/tls/Kconfig
@@ -0,0 +1,12 @@
+#
+# TLS configuration
+#
+config TLS
+	tristate "Transport Layer Security support"
+	depends on NET
+	default m
+	---help---
+	Enable kernel support for TLS protocol. This allows symmetric
+	encryption handling of the TLS protocol to be done in-kernel.
+
+	If unsure, say M.
diff --git a/net/tls/Makefile b/net/tls/Makefile
new file mode 100644
index 0000000..a930fd1
--- /dev/null
+++ b/net/tls/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the TLS subsystem.
+#
+
+obj-$(CONFIG_TLS) += tls.o
+
+tls-y := tls_main.o tls_sw.o
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
new file mode 100644
index 0000000..82937d4
--- /dev/null
+++ b/net/tls/tls_main.c
@@ -0,0 +1,485 @@
+/*
+ * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016-2017, Dave Watson <davejwatson@fb.com>. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/module.h>
+
+#include <net/tcp.h>
+#include <net/inet_common.h>
+#include <linux/highmem.h>
+#include <linux/netdevice.h>
+#include <linux/sched/signal.h>
+
+#include <net/tls.h>
+
+MODULE_AUTHOR("Mellanox Technologies");
+MODULE_DESCRIPTION("Transport Layer Security Support");
+MODULE_LICENSE("Dual BSD/GPL");
+
+static struct proto tls_base_prot;
+static struct proto tls_sw_prot;
+
+static int wait_on_pending_writer(struct sock *sk, long *timeo)
+{
+	int rc = 0;
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
+
+	add_wait_queue(sk_sleep(sk), &wait);
+	while (1) {
+		if (!*timeo) {
+			rc = -EAGAIN;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			rc = sock_intr_errno(*timeo);
+			break;
+		}
+
+		if (sk_wait_event(sk, timeo, !sk->sk_write_pending, &wait))
+			break;
+	}
+	remove_wait_queue(sk_sleep(sk), &wait);
+	return rc;
+}
+
+int tls_push_sg(struct sock *sk,
+		struct tls_context *ctx,
+		struct scatterlist *sg,
+		u16 first_offset,
+		int flags)
+{
+	int sendpage_flags = flags | MSG_SENDPAGE_NOTLAST;
+	int ret = 0;
+	struct page *p;
+	size_t size;
+	int offset = first_offset;
+
+	size = sg->length - offset;
+	offset += sg->offset;
+
+	while (1) {
+		if (sg_is_last(sg))
+			sendpage_flags = flags;
+
+		/* is sending application-limited? */
+		tcp_rate_check_app_limited(sk);
+		p = sg_page(sg);
+retry:
+		ret = do_tcp_sendpages(sk, p, offset, size, sendpage_flags);
+
+		if (ret != size) {
+			if (ret > 0) {
+				offset += ret;
+				size -= ret;
+				goto retry;
+			}
+
+			offset -= sg->offset;
+			ctx->partially_sent_offset = offset;
+			ctx->partially_sent_record = (void *)sg;
+			return ret;
+		}
+
+		put_page(p);
+		sk_mem_uncharge(sk, sg->length);
+		sg = sg_next(sg);
+		if (!sg)
+			break;
+
+		offset = sg->offset;
+		size = sg->length;
+	}
+
+	clear_bit(TLS_PENDING_CLOSED_RECORD, &ctx->flags);
+
+	return 0;
+}
+
+static int tls_handle_open_record(struct sock *sk, int flags)
+{
+	struct tls_context *ctx = tls_get_ctx(sk);
+
+	if (tls_is_pending_open_record(ctx))
+		return ctx->push_pending_record(sk, flags);
+
+	return 0;
+}
+
+int tls_proccess_cmsg(struct sock *sk, struct msghdr *msg,
+		      unsigned char *record_type)
+{
+	struct cmsghdr *cmsg;
+	int rc = -EINVAL;
+
+	for_each_cmsghdr(cmsg, msg) {
+		if (!CMSG_OK(msg, cmsg))
+			return -EINVAL;
+		if (cmsg->cmsg_level != SOL_TLS)
+			continue;
+
+		switch (cmsg->cmsg_type) {
+		case TLS_SET_RECORD_TYPE:
+			if (cmsg->cmsg_len < CMSG_LEN(sizeof(*record_type)))
+				return -EINVAL;
+
+			if (msg->msg_flags & MSG_MORE)
+				return -EINVAL;
+
+			rc = tls_handle_open_record(sk, msg->msg_flags);
+			if (rc)
+				return rc;
+
+			*record_type = *(unsigned char *)CMSG_DATA(cmsg);
+			rc = 0;
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	return rc;
+}
+
+int tls_push_pending_closed_record(struct sock *sk, struct tls_context *ctx,
+				   int flags, long *timeo)
+{
+	struct scatterlist *sg;
+	u16 offset;
+	int rc;
+
+	if (unlikely(sk->sk_write_pending)) {
+		rc = wait_on_pending_writer(sk, timeo);
+		if (rc)
+			return rc;
+	}
+
+	if (!tls_is_partially_sent_record(ctx))
+		return ctx->push_pending_record(sk, flags);
+
+	sg = ctx->partially_sent_record;
+	offset = ctx->partially_sent_offset;
+
+	ctx->partially_sent_record = NULL;
+	return tls_push_sg(sk, ctx, sg, offset, flags);
+}
+
+static void tls_write_space(struct sock *sk)
+{
+	struct tls_context *ctx = tls_get_ctx(sk);
+
+	if (!sk->sk_write_pending && tls_is_pending_closed_record(ctx)) {
+		gfp_t sk_allocation = sk->sk_allocation;
+		int rc;
+		long timeo = 0;
+
+		sk->sk_allocation = GFP_ATOMIC;
+		rc = tls_push_pending_closed_record(sk, ctx,
+						    MSG_DONTWAIT |
+						    MSG_NOSIGNAL,
+						    &timeo);
+		sk->sk_allocation = sk_allocation;
+
+		if (rc < 0)
+			return;
+	}
+
+	ctx->sk_write_space(sk);
+}
+
+static void tls_sk_proto_close(struct sock *sk, long timeout)
+{
+	struct tls_context *ctx = tls_get_ctx(sk);
+
+	lock_sock(sk);
+	if (tls_is_pending_closed_record(ctx)) {
+		long timeo = sock_sndtimeo(sk, 0);
+
+		tls_push_pending_closed_record(sk, ctx, 0, &timeo);
+	}
+	tls_handle_open_record(sk, 0);
+	release_sock(sk);
+	ctx->sk_proto_close(sk, timeout);
+}
+
+static int do_tls_getsockopt_tx(struct sock *sk, char __user *optval,
+				int __user *optlen)
+{
+	int rc = 0;
+	struct tls_context *ctx = tls_get_ctx(sk);
+	struct tls_crypto_info *crypto_info;
+	int len;
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	if (!optval || (len < sizeof(*crypto_info))) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	if (!ctx) {
+		rc = -EBUSY;
+		goto out;
+	}
+
+	/* get user crypto info */
+	crypto_info = &ctx->crypto_send;
+
+	if (!TLS_CRYPTO_INFO_READY(crypto_info)) {
+		rc = -EBUSY;
+		goto out;
+	}
+
+	if (len == sizeof(crypto_info)) {
+		rc = copy_to_user(optval, crypto_info, sizeof(*crypto_info));
+		goto out;
+	}
+
+	switch (crypto_info->cipher_type) {
+	case TLS_CIPHER_AES_GCM_128: {
+		struct tls12_crypto_info_aes_gcm_128 *
+		  crypto_info_aes_gcm_128 =
+		  container_of(crypto_info,
+			       struct tls12_crypto_info_aes_gcm_128,
+			       info);
+
+		if (len != sizeof(*crypto_info_aes_gcm_128)) {
+			rc = -EINVAL;
+			goto out;
+		}
+		lock_sock(sk);
+		memcpy(crypto_info_aes_gcm_128->iv, ctx->iv,
+		       TLS_CIPHER_AES_GCM_128_IV_SIZE);
+		release_sock(sk);
+		rc = copy_to_user(optval,
+				  crypto_info_aes_gcm_128,
+				  sizeof(*crypto_info_aes_gcm_128));
+		break;
+	}
+	default:
+		rc = -EINVAL;
+	}
+
+out:
+	return rc;
+}
+
+static int do_tls_getsockopt(struct sock *sk, int optname,
+			     char __user *optval, int __user *optlen)
+{
+	int rc = 0;
+
+	switch (optname) {
+	case TLS_TX:
+		rc = do_tls_getsockopt_tx(sk, optval, optlen);
+		break;
+	default:
+		rc = -ENOPROTOOPT;
+		break;
+	}
+	return rc;
+}
+
+static int tls_getsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int __user *optlen)
+{
+	struct tls_context *ctx = tls_get_ctx(sk);
+
+	if (level != SOL_TLS)
+		return ctx->getsockopt(sk, level, optname, optval, optlen);
+
+	return do_tls_getsockopt(sk, optname, optval, optlen);
+}
+
+static int do_tls_setsockopt_tx(struct sock *sk, char __user *optval,
+				unsigned int optlen)
+{
+	struct tls_crypto_info *crypto_info, tmp_crypto_info;
+	struct tls_context *ctx = tls_get_ctx(sk);
+	struct proto *prot = NULL;
+	int rc = 0;
+
+	if (!optval || (optlen < sizeof(*crypto_info))) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	rc = copy_from_user(&tmp_crypto_info, optval, sizeof(*crypto_info));
+	if (rc) {
+		rc = -EFAULT;
+		goto out;
+	}
+
+	/* check version */
+	if (tmp_crypto_info.version != TLS_1_2_VERSION) {
+		rc = -ENOTSUPP;
+		goto out;
+	}
+
+	/* get user crypto info */
+	crypto_info = &ctx->crypto_send;
+
+	/* Currently we don't support set crypto info more than one time */
+	if (TLS_CRYPTO_INFO_READY(crypto_info))
+		goto out;
+
+	switch (tmp_crypto_info.cipher_type) {
+	case TLS_CIPHER_AES_GCM_128: {
+		if (optlen != sizeof(struct tls12_crypto_info_aes_gcm_128)) {
+			rc = -EINVAL;
+			goto out;
+		}
+		rc = copy_from_user(
+		  crypto_info,
+		  optval,
+		  sizeof(struct tls12_crypto_info_aes_gcm_128));
+
+		if (rc) {
+			rc = -EFAULT;
+			goto err_crypto_info;
+		}
+		break;
+	}
+	default:
+		rc = -EINVAL;
+		goto out;
+	}
+
+	ctx->sk_write_space = sk->sk_write_space;
+	sk->sk_write_space = tls_write_space;
+
+	ctx->sk_destruct = sk->sk_destruct;
+
+	ctx->sk_proto_close = sk->sk_prot->close;
+
+	/* currently SW is default, we will have ethtool in future */
+	rc = tls_set_sw_offload(sk, ctx);
+	prot = &tls_sw_prot;
+	if (rc)
+		goto err_crypto_info;
+
+	sk->sk_prot = prot;
+	goto out;
+
+err_crypto_info:
+	memset(crypto_info, 0, sizeof(*crypto_info));
+out:
+	return rc;
+}
+
+static int do_tls_setsockopt(struct sock *sk, int optname,
+			     char __user *optval, unsigned int optlen)
+{
+	int rc = 0;
+
+	switch (optname) {
+	case TLS_TX:
+		lock_sock(sk);
+		rc = do_tls_setsockopt_tx(sk, optval, optlen);
+		release_sock(sk);
+		break;
+	default:
+		rc = -ENOPROTOOPT;
+		break;
+	}
+	return rc;
+}
+
+static int tls_setsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, unsigned int optlen)
+{
+	struct tls_context *ctx = tls_get_ctx(sk);
+
+	if (level != SOL_TLS)
+		return ctx->setsockopt(sk, level, optname, optval, optlen);
+
+	return do_tls_setsockopt(sk, optname, optval, optlen);
+}
+
+void tls_sk_destruct(struct sock *sk, struct tls_context *ctx)
+{
+	ctx->sk_destruct(sk);
+	kfree(ctx->rec_seq);
+	kfree(ctx->iv);
+	kfree(ctx);
+}
+
+static int tls_init(struct sock *sk)
+{
+	struct inet_connection_sock *icsk = inet_csk(sk);
+	struct tls_context *ctx;
+	int rc = 0;
+
+	/* allocate tls context */
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx) {
+		rc = -ENOMEM;
+		goto out;
+	}
+	icsk->icsk_ulp_data = ctx;
+	ctx->setsockopt = sk->sk_prot->setsockopt;
+	ctx->getsockopt = sk->sk_prot->getsockopt;
+	sk->sk_prot = &tls_base_prot;
+out:
+	return rc;
+}
+
+static struct tcp_ulp_ops tcp_tls_ulp_ops __read_mostly = {
+	.name			= "tls",
+	.owner			= THIS_MODULE,
+	.init			= tls_init,
+};
+
+static int __init tls_register(void)
+{
+	tls_base_prot			= tcp_prot;
+	tls_base_prot.setsockopt	= tls_setsockopt;
+	tls_base_prot.getsockopt	= tls_getsockopt;
+
+	tls_sw_prot			= tls_base_prot;
+	tls_sw_prot.sendmsg		= tls_sw_sendmsg;
+	tls_sw_prot.sendpage            = tls_sw_sendpage;
+	tls_sw_prot.close               = tls_sk_proto_close;
+
+	tcp_register_ulp(&tcp_tls_ulp_ops);
+
+	return 0;
+}
+
+static void __exit tls_unregister(void)
+{
+	tcp_unregister_ulp(&tcp_tls_ulp_ops);
+}
+
+module_init(tls_register);
+module_exit(tls_unregister);
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
new file mode 100644
index 0000000..86802f4
--- /dev/null
+++ b/net/tls/tls_sw.c
@@ -0,0 +1,794 @@
+/*
+ * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016-2017, Dave Watson <davejwatson@fb.com>. All rights reserved.
+ * Copyright (c) 2016-2017, Lance Chao <lancerchao@fb.com>. All rights reserved.
+ * Copyright (c) 2016, Fridolin Pokorny <fridolin.pokorny@gmail.com>. All rights reserved.
+ * Copyright (c) 2016, Nikos Mavrogiannopoulos <nmav@gnults.org>. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <crypto/aead.h>
+
+#include <net/tls.h>
+
+static inline void tls_make_aad(int recv,
+				char *buf,
+				size_t size,
+				char *record_sequence,
+				int record_sequence_size,
+				unsigned char record_type)
+{
+	memcpy(buf, record_sequence, record_sequence_size);
+
+	buf[8] = record_type;
+	buf[9] = TLS_1_2_VERSION_MAJOR;
+	buf[10] = TLS_1_2_VERSION_MINOR;
+	buf[11] = size >> 8;
+	buf[12] = size & 0xFF;
+}
+
+static void trim_sg(struct sock *sk, struct scatterlist *sg,
+		    int *sg_num_elem, unsigned int *sg_size, int target_size)
+{
+	int i = *sg_num_elem - 1;
+	int trim = *sg_size - target_size;
+
+	if (trim <= 0) {
+		WARN_ON(trim < 0);
+		return;
+	}
+
+	*sg_size = target_size;
+	while (trim >= sg[i].length) {
+		trim -= sg[i].length;
+		sk_mem_uncharge(sk, sg[i].length);
+		put_page(sg_page(&sg[i]));
+		i--;
+
+		if (i < 0)
+			goto out;
+	}
+
+	sg[i].length -= trim;
+	sk_mem_uncharge(sk, trim);
+
+out:
+	*sg_num_elem = i + 1;
+}
+
+static void trim_both_sgl(struct sock *sk, int target_size)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+
+	trim_sg(sk, ctx->sg_plaintext_data,
+		&ctx->sg_plaintext_num_elem,
+		&ctx->sg_plaintext_size,
+		target_size);
+
+	if (target_size > 0)
+		target_size += tls_ctx->overhead_size;
+
+	trim_sg(sk, ctx->sg_encrypted_data,
+		&ctx->sg_encrypted_num_elem,
+		&ctx->sg_encrypted_size,
+		target_size);
+}
+
+static int alloc_sg(struct sock *sk, int len, struct scatterlist *sg,
+		    int *sg_num_elem, unsigned int *sg_size,
+		    int first_coalesce)
+{
+	struct page_frag *pfrag;
+	unsigned int size = *sg_size;
+	int num_elem = *sg_num_elem, use = 0, rc = 0;
+	struct scatterlist *sge;
+	unsigned int orig_offset;
+
+	len -= size;
+	pfrag = sk_page_frag(sk);
+
+	while (len > 0) {
+		if (!sk_page_frag_refill(sk, pfrag)) {
+			rc = -ENOMEM;
+			goto out;
+		}
+
+		use = min_t(int, len, pfrag->size - pfrag->offset);
+
+		if (!sk_wmem_schedule(sk, use)) {
+			rc = -ENOMEM;
+			goto out;
+		}
+
+		sk_mem_charge(sk, use);
+		size += use;
+		orig_offset = pfrag->offset;
+		pfrag->offset += use;
+
+		sge = sg + num_elem - 1;
+		if (num_elem > first_coalesce && sg_page(sg) == pfrag->page &&
+		    sg->offset + sg->length == orig_offset) {
+			sg->length += use;
+		} else {
+			sge++;
+			sg_unmark_end(sge);
+			sg_set_page(sge, pfrag->page, use, orig_offset);
+			get_page(pfrag->page);
+			++num_elem;
+			if (num_elem == MAX_SKB_FRAGS) {
+				rc = -ENOSPC;
+				break;
+			}
+		}
+
+		len -= use;
+	}
+	goto out;
+
+out:
+	*sg_size = size;
+	*sg_num_elem = num_elem;
+	return rc;
+}
+
+static int alloc_encrypted_sg(struct sock *sk, int len)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+	int rc = 0;
+
+	rc = alloc_sg(sk, len, ctx->sg_encrypted_data,
+		      &ctx->sg_encrypted_num_elem, &ctx->sg_encrypted_size, 0);
+
+	return rc;
+}
+
+static int alloc_plaintext_sg(struct sock *sk, int len)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+	int rc = 0;
+
+	rc = alloc_sg(sk, len, ctx->sg_plaintext_data,
+		      &ctx->sg_plaintext_num_elem, &ctx->sg_plaintext_size,
+		      tls_ctx->pending_open_record_frags);
+
+	return rc;
+}
+
+static void free_sg(struct sock *sk, struct scatterlist *sg,
+		    int *sg_num_elem, unsigned int *sg_size)
+{
+	int i, n = *sg_num_elem;
+
+	for (i = 0; i < n; ++i) {
+		sk_mem_uncharge(sk, sg[i].length);
+		put_page(sg_page(&sg[i]));
+	}
+	*sg_num_elem = 0;
+	*sg_size = 0;
+}
+
+static void tls_free_both_sg(struct sock *sk)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+
+	free_sg(sk, ctx->sg_encrypted_data, &ctx->sg_encrypted_num_elem,
+		&ctx->sg_encrypted_size);
+
+	free_sg(sk, ctx->sg_plaintext_data, &ctx->sg_plaintext_num_elem,
+		&ctx->sg_plaintext_size);
+}
+
+static int tls_do_encryption(struct tls_context *tls_ctx,
+			     struct tls_sw_context *ctx, size_t data_len,
+			     gfp_t flags)
+{
+	unsigned int req_size = sizeof(struct aead_request) +
+		crypto_aead_reqsize(ctx->aead_send);
+	struct aead_request *aead_req;
+	int rc;
+
+	aead_req = kmalloc(req_size, flags);
+	if (!aead_req)
+		return -ENOMEM;
+
+	ctx->sg_encrypted_data[0].offset += tls_ctx->prepend_size;
+	ctx->sg_encrypted_data[0].length -= tls_ctx->prepend_size;
+
+	aead_request_set_tfm(aead_req, ctx->aead_send);
+	aead_request_set_ad(aead_req, TLS_AAD_SPACE_SIZE);
+	aead_request_set_crypt(aead_req, ctx->sg_aead_in, ctx->sg_aead_out,
+			       data_len, tls_ctx->iv);
+	rc = crypto_aead_encrypt(aead_req);
+
+	ctx->sg_encrypted_data[0].offset -= tls_ctx->prepend_size;
+	ctx->sg_encrypted_data[0].length += tls_ctx->prepend_size;
+
+	kfree(aead_req);
+	return rc;
+}
+
+static int tls_push_record(struct sock *sk, int flags,
+			   unsigned char record_type)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+	int rc;
+
+	sg_mark_end(ctx->sg_plaintext_data + ctx->sg_plaintext_num_elem - 1);
+	sg_mark_end(ctx->sg_encrypted_data + ctx->sg_encrypted_num_elem - 1);
+
+	tls_make_aad(0, ctx->aad_space, ctx->sg_plaintext_size,
+		     tls_ctx->rec_seq, tls_ctx->rec_seq_size,
+		     record_type);
+
+	tls_fill_prepend(tls_ctx,
+			 page_address(sg_page(&ctx->sg_encrypted_data[0])) +
+			 ctx->sg_encrypted_data[0].offset,
+			 ctx->sg_plaintext_size, record_type);
+
+	tls_ctx->pending_open_record_frags = 0;
+	set_bit(TLS_PENDING_CLOSED_RECORD, &tls_ctx->flags);
+
+	rc = tls_do_encryption(tls_ctx, ctx, ctx->sg_plaintext_size,
+			       sk->sk_allocation);
+	if (rc < 0) {
+		/* If we are called from write_space and
+		 * we fail, we need to set this SOCK_NOSPACE
+		 * to trigger another write_space in the future.
+		 */
+		set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
+		return rc;
+	}
+
+	free_sg(sk, ctx->sg_plaintext_data, &ctx->sg_plaintext_num_elem,
+		&ctx->sg_plaintext_size);
+
+	ctx->sg_encrypted_num_elem = 0;
+	ctx->sg_encrypted_size = 0;
+
+	/* Only pass through MSG_DONTWAIT and MSG_NOSIGNAL flags */
+	rc = tls_push_sg(sk, tls_ctx, ctx->sg_encrypted_data, 0, flags);
+	if (rc < 0 && rc != -EAGAIN)
+		tls_err_abort(sk);
+
+	tls_advance_record_sn(sk, tls_ctx);
+	return rc;
+}
+
+static int tls_sw_push_pending_record(struct sock *sk, int flags)
+{
+	return tls_push_record(sk, flags, TLS_RECORD_TYPE_DATA);
+}
+
+static int zerocopy_from_iter(struct sock *sk, struct iov_iter *from,
+			      int length)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+	struct page *pages[MAX_SKB_FRAGS];
+
+	size_t offset;
+	ssize_t copied, use;
+	int i = 0;
+	unsigned int size = ctx->sg_plaintext_size;
+	int num_elem = ctx->sg_plaintext_num_elem;
+	int rc = 0;
+	int maxpages;
+
+	while (length > 0) {
+		i = 0;
+		maxpages = ARRAY_SIZE(ctx->sg_plaintext_data) - num_elem;
+		if (maxpages == 0) {
+			rc = -EFAULT;
+			goto out;
+		}
+		copied = iov_iter_get_pages(from, pages,
+					    length,
+					    maxpages, &offset);
+		if (copied <= 0) {
+			rc = -EFAULT;
+			goto out;
+		}
+
+		iov_iter_advance(from, copied);
+
+		length -= copied;
+		size += copied;
+		while (copied) {
+			use = min_t(int, copied, PAGE_SIZE - offset);
+
+			sg_set_page(&ctx->sg_plaintext_data[num_elem],
+				    pages[i], use, offset);
+			sg_unmark_end(&ctx->sg_plaintext_data[num_elem]);
+			sk_mem_charge(sk, use);
+
+			offset = 0;
+			copied -= use;
+
+			++i;
+			++num_elem;
+		}
+	}
+
+out:
+	ctx->sg_plaintext_size = size;
+	ctx->sg_plaintext_num_elem = num_elem;
+	return rc;
+}
+
+static int memcopy_from_iter(struct sock *sk, struct iov_iter *from,
+			     int bytes)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+	struct scatterlist *sg = ctx->sg_plaintext_data;
+	int copy, i, rc = 0;
+
+	for (i = tls_ctx->pending_open_record_frags;
+	     i < ctx->sg_plaintext_num_elem; ++i) {
+		copy = sg[i].length;
+		if (copy_from_iter(
+				page_address(sg_page(&sg[i])) + sg[i].offset,
+				copy, from) != copy) {
+			rc = -EFAULT;
+			goto out;
+		}
+		bytes -= copy;
+
+		++tls_ctx->pending_open_record_frags;
+
+		if (!bytes)
+			break;
+	}
+
+out:
+	return rc;
+}
+
+int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+	int ret = 0;
+	int required_size;
+	long timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT);
+	bool eor = !(msg->msg_flags & MSG_MORE);
+	size_t try_to_copy, copied = 0;
+	unsigned char record_type = TLS_RECORD_TYPE_DATA;
+	int record_room;
+	bool full_record;
+	int orig_size;
+
+	if (msg->msg_flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL))
+		return -ENOTSUPP;
+
+	lock_sock(sk);
+
+	if (tls_is_pending_closed_record(tls_ctx)) {
+		ret = tls_push_pending_closed_record(sk, tls_ctx,
+						     msg->msg_flags,
+						     &timeo);
+		if (ret < 0)
+			goto send_end;
+	}
+
+	if (unlikely(msg->msg_controllen)) {
+		ret = tls_proccess_cmsg(sk, msg, &record_type);
+		if (ret)
+			goto send_end;
+	}
+
+	while (msg_data_left(msg)) {
+		if (sk->sk_err) {
+			ret = sk->sk_err;
+			goto send_end;
+		}
+
+		orig_size = ctx->sg_plaintext_size;
+		full_record = false;
+		try_to_copy = msg_data_left(msg);
+		record_room = TLS_MAX_PAYLOAD_SIZE - ctx->sg_plaintext_size;
+		if (try_to_copy >= record_room) {
+			try_to_copy = record_room;
+			full_record = true;
+		}
+
+		required_size = ctx->sg_plaintext_size + try_to_copy +
+				tls_ctx->overhead_size;
+
+		if (!sk_stream_memory_free(sk))
+			goto wait_for_sndbuf;
+alloc_encrypted:
+		ret = alloc_encrypted_sg(sk, required_size);
+		if (ret) {
+			if (ret != -ENOSPC)
+				goto wait_for_memory;
+
+			/* Adjust try_to_copy according to the amount that was
+			 * actually allocated. The difference is due
+			 * to max sg elements limit
+			 */
+			try_to_copy -= required_size - ctx->sg_encrypted_size;
+			full_record = true;
+		}
+
+		if (full_record || eor) {
+			ret = zerocopy_from_iter(sk, &msg->msg_iter,
+						 try_to_copy);
+			if (ret)
+				goto fallback_to_reg_send;
+
+			copied += try_to_copy;
+			ret = tls_push_record(sk, msg->msg_flags, record_type);
+			if (!ret)
+				continue;
+			if (ret == -EAGAIN)
+				goto send_end;
+
+			copied -= try_to_copy;
+fallback_to_reg_send:
+			iov_iter_revert(&msg->msg_iter,
+					ctx->sg_plaintext_size - orig_size);
+			trim_sg(sk, ctx->sg_plaintext_data,
+				&ctx->sg_plaintext_num_elem,
+				&ctx->sg_plaintext_size,
+				orig_size);
+		}
+
+		required_size = ctx->sg_plaintext_size + try_to_copy;
+alloc_plaintext:
+		ret = alloc_plaintext_sg(sk, required_size);
+		if (ret) {
+			if (ret != -ENOSPC)
+				goto wait_for_memory;
+
+			/* Adjust try_to_copy according to the amount that was
+			 * actually allocated. The difference is due
+			 * to max sg elements limit
+			 */
+			try_to_copy -= required_size - ctx->sg_plaintext_size;
+			full_record = true;
+
+			trim_sg(sk, ctx->sg_encrypted_data,
+				&ctx->sg_encrypted_num_elem,
+				&ctx->sg_encrypted_size,
+				ctx->sg_plaintext_size +
+				tls_ctx->overhead_size);
+		}
+
+		ret = memcopy_from_iter(sk, &msg->msg_iter, try_to_copy);
+		if (ret)
+			goto trim_sgl;
+
+		copied += try_to_copy;
+		if (full_record || eor) {
+push_record:
+			ret = tls_push_record(sk, msg->msg_flags, record_type);
+			if (ret) {
+				if (ret == -ENOMEM)
+					goto wait_for_memory;
+
+				goto send_end;
+			}
+		}
+
+		continue;
+
+wait_for_sndbuf:
+		set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
+wait_for_memory:
+		ret = sk_stream_wait_memory(sk, &timeo);
+		if (ret) {
+trim_sgl:
+			trim_both_sgl(sk, orig_size);
+			goto send_end;
+		}
+
+		if (tls_is_pending_closed_record(tls_ctx))
+			goto push_record;
+
+		if (ctx->sg_encrypted_size < required_size)
+			goto alloc_encrypted;
+
+		goto alloc_plaintext;
+	}
+
+send_end:
+	ret = sk_stream_error(sk, msg->msg_flags, ret);
+
+	release_sock(sk);
+	return copied ? copied : ret;
+}
+
+int tls_sw_sendpage(struct sock *sk, struct page *page,
+		    int offset, size_t size, int flags)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+	int ret = 0;
+	long timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT);
+	bool eor;
+	size_t orig_size = size;
+	unsigned char record_type = TLS_RECORD_TYPE_DATA;
+	struct scatterlist *sg;
+	bool full_record;
+	int record_room;
+
+	if (flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL |
+		      MSG_SENDPAGE_NOTLAST))
+		return -ENOTSUPP;
+
+	/* No MSG_EOR from splice, only look at MSG_MORE */
+	eor = !(flags & (MSG_MORE | MSG_SENDPAGE_NOTLAST));
+
+	lock_sock(sk);
+
+	sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
+
+	if (tls_is_pending_closed_record(tls_ctx)) {
+		ret = tls_push_pending_closed_record(sk, tls_ctx, flags,
+						     &timeo);
+		if (ret < 0)
+			goto sendpage_end;
+	}
+
+	/* Call the sk_stream functions to manage the sndbuf mem. */
+	while (size > 0) {
+		size_t copy, required_size;
+
+		if (sk->sk_err) {
+			ret = sk->sk_err;
+			goto sendpage_end;
+		}
+
+		full_record = false;
+		record_room = TLS_MAX_PAYLOAD_SIZE - ctx->sg_plaintext_size;
+		copy = size;
+		if (copy >= record_room) {
+			copy = record_room;
+			full_record = true;
+		}
+		required_size = ctx->sg_plaintext_size + copy +
+			      tls_ctx->overhead_size;
+
+		if (!sk_stream_memory_free(sk))
+			goto wait_for_sndbuf;
+alloc_payload:
+		ret = alloc_encrypted_sg(sk, required_size);
+		if (ret) {
+			if (ret != -ENOSPC)
+				goto wait_for_memory;
+
+			/* Adjust copy according to the amount that was
+			 * actually allocated. The difference is due
+			 * to max sg elements limit
+			 */
+			copy -= required_size - ctx->sg_plaintext_size;
+			full_record = true;
+		}
+
+		get_page(page);
+		sg = ctx->sg_plaintext_data + ctx->sg_plaintext_num_elem;
+		sg_set_page(sg, page, copy, offset);
+		ctx->sg_plaintext_num_elem++;
+
+		sk_mem_charge(sk, copy);
+		offset += copy;
+		size -= copy;
+		ctx->sg_plaintext_size += copy;
+		tls_ctx->pending_open_record_frags = ctx->sg_plaintext_num_elem;
+
+		if (full_record || eor ||
+		    ctx->sg_plaintext_num_elem ==
+		    ARRAY_SIZE(ctx->sg_plaintext_data)) {
+push_record:
+			ret = tls_push_record(sk, flags, record_type);
+			if (ret) {
+				if (ret == -ENOMEM)
+					goto wait_for_memory;
+
+				goto sendpage_end;
+			}
+		}
+		continue;
+wait_for_sndbuf:
+		set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
+wait_for_memory:
+		ret = sk_stream_wait_memory(sk, &timeo);
+		if (ret) {
+			trim_both_sgl(sk, ctx->sg_plaintext_size);
+			goto sendpage_end;
+		}
+
+		if (tls_is_pending_closed_record(tls_ctx))
+			goto push_record;
+
+		goto alloc_payload;
+	}
+
+sendpage_end:
+	if (orig_size > size)
+		ret = orig_size - size;
+	else
+		ret = sk_stream_error(sk, flags, ret);
+
+	release_sock(sk);
+	return ret;
+}
+
+void tls_sw_sk_destruct(struct sock *sk)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
+
+	if (ctx->aead_send)
+		crypto_free_aead(ctx->aead_send);
+
+	tls_free_both_sg(sk);
+	if (tls_ctx->partially_sent_record) {
+		struct scatterlist *sg = tls_ctx->partially_sent_record;
+
+		while (1) {
+			put_page(sg_page(sg));
+			sk_mem_uncharge(sk, sg->length);
+
+			if (sg_is_last(sg))
+				break;
+			sg++;
+		}
+	}
+
+	kfree(ctx);
+	tls_sk_destruct(sk, tls_ctx);
+}
+
+int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx)
+{
+	char keyval[TLS_CIPHER_AES_GCM_128_KEY_SIZE];
+	struct tls_crypto_info *crypto_info;
+	struct tls12_crypto_info_aes_gcm_128 *gcm_128_info;
+	struct tls_sw_context *sw_ctx;
+	u16 nonce_size, tag_size, iv_size, rec_seq_size;
+	char *iv, *rec_seq;
+	int rc = 0;
+
+	if (!ctx) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	if (ctx->priv_ctx) {
+		rc = -EEXIST;
+		goto out;
+	}
+
+	sw_ctx = kzalloc(sizeof(*sw_ctx), GFP_KERNEL);
+	if (!sw_ctx) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	ctx->priv_ctx = (struct tls_offload_context *)sw_ctx;
+
+	crypto_info = &ctx->crypto_send;
+	switch (crypto_info->cipher_type) {
+	case TLS_CIPHER_AES_GCM_128: {
+		nonce_size = TLS_CIPHER_AES_GCM_128_IV_SIZE;
+		tag_size = TLS_CIPHER_AES_GCM_128_TAG_SIZE;
+		iv_size = TLS_CIPHER_AES_GCM_128_IV_SIZE;
+		iv = ((struct tls12_crypto_info_aes_gcm_128 *)crypto_info)->iv;
+		rec_seq_size = TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE;
+		rec_seq =
+		 ((struct tls12_crypto_info_aes_gcm_128 *)crypto_info)->rec_seq;
+		gcm_128_info =
+			(struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
+		break;
+	}
+	default:
+		rc = -EINVAL;
+		goto out;
+	}
+
+	ctx->prepend_size = TLS_HEADER_SIZE + nonce_size;
+	ctx->tag_size = tag_size;
+	ctx->overhead_size = ctx->prepend_size + ctx->tag_size;
+	ctx->iv_size = iv_size;
+	ctx->iv = kmalloc(iv_size + TLS_CIPHER_AES_GCM_128_SALT_SIZE,
+			  GFP_KERNEL);
+	if (!ctx->iv) {
+		rc = -ENOMEM;
+		goto out;
+	}
+	memcpy(ctx->iv, gcm_128_info->salt, TLS_CIPHER_AES_GCM_128_SALT_SIZE);
+	memcpy(ctx->iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE, iv, iv_size);
+	ctx->rec_seq_size = rec_seq_size;
+	ctx->rec_seq = kmalloc(rec_seq_size, GFP_KERNEL);
+	if (!ctx->rec_seq) {
+		rc = -ENOMEM;
+		goto free_iv;
+	}
+	memcpy(ctx->rec_seq, rec_seq, rec_seq_size);
+
+	sg_init_table(sw_ctx->sg_encrypted_data,
+		      ARRAY_SIZE(sw_ctx->sg_encrypted_data));
+	sg_init_table(sw_ctx->sg_plaintext_data,
+		      ARRAY_SIZE(sw_ctx->sg_plaintext_data));
+
+	sg_init_table(sw_ctx->sg_aead_in, 2);
+	sg_set_buf(&sw_ctx->sg_aead_in[0], sw_ctx->aad_space,
+		   sizeof(sw_ctx->aad_space));
+	sg_unmark_end(&sw_ctx->sg_aead_in[1]);
+	sg_chain(sw_ctx->sg_aead_in, 2, sw_ctx->sg_plaintext_data);
+	sg_init_table(sw_ctx->sg_aead_out, 2);
+	sg_set_buf(&sw_ctx->sg_aead_out[0], sw_ctx->aad_space,
+		   sizeof(sw_ctx->aad_space));
+	sg_unmark_end(&sw_ctx->sg_aead_out[1]);
+	sg_chain(sw_ctx->sg_aead_out, 2, sw_ctx->sg_encrypted_data);
+
+	if (!sw_ctx->aead_send) {
+		sw_ctx->aead_send = crypto_alloc_aead("gcm(aes)", 0, 0);
+		if (IS_ERR(sw_ctx->aead_send)) {
+			rc = PTR_ERR(sw_ctx->aead_send);
+			sw_ctx->aead_send = NULL;
+			goto free_rec_seq;
+		}
+	}
+
+	sk->sk_destruct = tls_sw_sk_destruct;
+	ctx->push_pending_record = tls_sw_push_pending_record;
+
+	memcpy(keyval, gcm_128_info->key, TLS_CIPHER_AES_GCM_128_KEY_SIZE);
+
+	rc = crypto_aead_setkey(sw_ctx->aead_send, keyval,
+				TLS_CIPHER_AES_GCM_128_KEY_SIZE);
+	if (rc)
+		goto free_aead;
+
+	rc = crypto_aead_setauthsize(sw_ctx->aead_send, ctx->tag_size);
+	if (!rc)
+		goto out;
+
+free_aead:
+	crypto_free_aead(sw_ctx->aead_send);
+	sw_ctx->aead_send = NULL;
+free_rec_seq:
+	kfree(ctx->rec_seq);
+	ctx->rec_seq = NULL;
+free_iv:
+	kfree(ctx->iv);
+	ctx->iv = NULL;
+out:
+	return rc;
+}
