X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=crypto%2FKconfig;h=87bbc9c1e681cb3b118aef05c9bc8f663550a277;hb=66893885bbf95b6c9030d97804cb678a70804edf;hp=00b5906f57b783232b689af4693d1a9e39b2ad39;hpb=b2d1965dcea148100ffc4e7199470bf5fad13871;p=deliverable%2Flinux.git

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 00b5906f57b7..87bbc9c1e681 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -158,6 +158,20 @@ config CRYPTO_CRYPTD
 	  converts an arbitrary synchronous software crypto algorithm
 	  into an asynchronous algorithm that executes in a kernel thread.
 
+config CRYPTO_MCRYPTD
+	tristate "Software async multi-buffer crypto daemon"
+	select CRYPTO_BLKCIPHER
+	select CRYPTO_HASH
+	select CRYPTO_MANAGER
+	select CRYPTO_WORKQUEUE
+	help
+	  This is a generic software asynchronous crypto daemon that
+	  provides the kernel thread to assist multi-buffer crypto
+	  algorithms for submitting jobs and flushing jobs in multi-buffer
+	  crypto algorithms.  Multi-buffer crypto algorithms are executed
+	  in the context of this kernel thread and drivers can post
+	  their crypto request asynchronously to be processed by this daemon.
+
 config CRYPTO_AUTHENC
 	tristate "Authenc support"
 	select CRYPTO_AEAD
@@ -543,7 +557,7 @@ config CRYPTO_SHA1_ARM
 
 config CRYPTO_SHA1_ARM_NEON
 	tristate "SHA1 digest algorithm (ARM NEON)"
-	depends on ARM && KERNEL_MODE_NEON && !CPU_BIG_ENDIAN
+	depends on ARM && KERNEL_MODE_NEON
 	select CRYPTO_SHA1_ARM
 	select CRYPTO_SHA1
 	select CRYPTO_HASH
@@ -559,6 +573,22 @@ config CRYPTO_SHA1_PPC
 	  This is the powerpc hardware accelerated implementation of the
 	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
 
+config CRYPTO_SHA1_MB
+	tristate "SHA1 digest algorithm (x86_64 Multi-Buffer, Experimental)"
+	depends on X86 && 64BIT
+	select CRYPTO_SHA1
+	select CRYPTO_HASH
+	select CRYPTO_MCRYPTD
+	help
+	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
+	  using multi-buffer technique.  This algorithm computes on
+	  multiple data lanes concurrently with SIMD instructions for
+	  better throughput.  It should not be enabled by default but
+	  used when there is significant amount of work to keep the keep
+	  the data lanes filled to get performance benefit.  If the data
+	  lanes remain unfilled, a flush operation will be initiated to
+	  process the crypto jobs, adding a slight latency.
+
 config CRYPTO_SHA256
 	tristate "SHA224 and SHA256 digest algorithm"
 	select CRYPTO_HASH
@@ -603,7 +633,7 @@ config CRYPTO_SHA512_SPARC64
 
 config CRYPTO_SHA512_ARM_NEON
 	tristate "SHA384 and SHA512 digest algorithm (ARM NEON)"
-	depends on ARM && KERNEL_MODE_NEON && !CPU_BIG_ENDIAN
+	depends on ARM && KERNEL_MODE_NEON
 	select CRYPTO_SHA512
 	select CRYPTO_HASH
 	help