From a54667f6728c2714a400f3c884727da74b6d1717 Mon Sep 17 00:00:00 2001
From: Vakul Garg <vakul.garg@nxp.com>
Date: Wed, 31 Jan 2018 21:34:37 +0530
Subject: tls: Add support for encryption using async offload accelerator

Async crypto accelerators (e.g. drivers/crypto/caam) support offloading
GCM operation. If they are enabled, crypto_aead_encrypt() return error
code -EINPROGRESS. In this case tls_do_encryption() needs to wait on a
completion till the time the response for crypto offload request is
received.

Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tls.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include/net')

diff --git a/include/net/tls.h b/include/net/tls.h
index 9185e53a743c..4913430ab807 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -36,6 +36,7 @@
 
 #include <linux/types.h>
 #include <asm/byteorder.h>
+#include <linux/crypto.h>
 #include <linux/socket.h>
 #include <linux/tcp.h>
 #include <net/tcp.h>
@@ -57,6 +58,7 @@
 
 struct tls_sw_context {
 	struct crypto_aead *aead_send;
+	struct crypto_wait async_wait;
 
 	/* Sending context */
 	char aad_space[TLS_AAD_SPACE_SIZE];
-- 
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