crypto: sha256-mb - SHA256 multibuffer job manager and glue code

This patch introduces the multi-buffer job manager which is responsible for submitting scatter-gather buffers from several SHA256 jobs to the multi-buffer algorithm. It also contains the flush routine to that's called by the crypto daemon to complete the job when no new jobs arrive before the deadline of maximum latency of a SHA256 crypto job. The SHA256 multi-buffer crypto algorithm is defined and initialized in this patch. Signed-off-by: Megha Dey <megha.dey@linux.intel.com> Reviewed-by: Fenghua Yu <fenghua.yu@intel.com> Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
mariux64 · Jun 27, 2016 · f876f44 · f876f44
1 parent ab17787
commit f876f44
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diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
@@ -50,6 +50,7 @@ ifeq ($(avx2_supported),yes)
 	obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o
 	obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o
 	obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/
+	obj-$(CONFIG_CRYPTO_SHA256_MB) += sha256-mb/
 endif
 
 aes-i586-y := aes-i586-asm_32.o aes_glue.o

diff --git a/arch/x86/crypto/sha256-mb/Makefile b/arch/x86/crypto/sha256-mb/Makefile
@@ -0,0 +1,11 @@
+#
+# Arch-specific CryptoAPI modules.
+#
+
+avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
+                                $(comma)4)$(comma)%ymm2,yes,no)
+ifeq ($(avx2_supported),yes)
+	obj-$(CONFIG_CRYPTO_SHA256_MB) += sha256-mb.o
+	sha256-mb-y := sha256_mb.o sha256_mb_mgr_flush_avx2.o \
+	     sha256_mb_mgr_init_avx2.o sha256_mb_mgr_submit_avx2.o sha256_x8_avx2.o
+endif