| Message ID | 20230217161805.236319-2-dtsen@linux.ibm.com |
|---|---|
| State | New |
| Headers | show |
| Series | crypto: Accelerated AES/GCM stitched implementation | expand |
> +config CRYPTO_P10_AES_GCM > + tristate "Stitched AES/GCM acceleration support on P10+ CPU (PPC)" > + depends on PPC64 && POWER10_CPU && CPU_LITTLE_ENDIAN > + select CRYPTO_LIB_AES > + select CRYPTO_ALGAPI > + select CRYPTO_AEAD > + default m > + help > + Support for cryptographic acceleration instructions on Power10+ CPU. > + This module supports stitched acceleration for AES/GCM in > hardware. Is "Power10+" a specific architecture or does that mean "Power10 or later"? Please follow the newer wording conventions for the menu item and help text, more like: config CRYPTO_AES_GCM_PPC_P10 tristate "AEAD cipher: AES in GCM mode (Power10)" help AEAD cipher: AES cipher algorithms (FIPS-197) with GCM (Galois/Counter Mode) authenticated encryption mode (NIST SP800-38D) Architecture: powerpc64 using: - little-endian - Power10 features [some description here] Also, all the other powerpc cra_driver_names follow alg-arch not arch-alg so .base.cra_driver_name = "p10_aes_gcm", might be better as .base.cra_driver_name = "aes-gcm-p10", Patch 4 seems to have code for lots of other modes like CBC and XTS. Does the perl script strip out all of that?
Hi Robert, Power10+ means Power10 or later. Other modes were not stripped by the perl script. Thanks for the comments I will fix the suggestions. -Danny On 2/17/23 3:44 PM, Elliott, Robert (Servers) wrote: >> +config CRYPTO_P10_AES_GCM >> + tristate "Stitched AES/GCM acceleration support on P10+ CPU (PPC)" >> + depends on PPC64 && POWER10_CPU && CPU_LITTLE_ENDIAN >> + select CRYPTO_LIB_AES >> + select CRYPTO_ALGAPI >> + select CRYPTO_AEAD >> + default m >> + help >> + Support for cryptographic acceleration instructions on Power10+ CPU. >> + This module supports stitched acceleration for AES/GCM in >> hardware. > Is "Power10+" a specific architecture or does that mean "Power10 or later"? > > Please follow the newer wording conventions for the menu item and > help text, more like: > > config CRYPTO_AES_GCM_PPC_P10 > tristate "AEAD cipher: AES in GCM mode (Power10)" > > help > AEAD cipher: AES cipher algorithms (FIPS-197) with > GCM (Galois/Counter Mode) authenticated encryption mode (NIST SP800-38D) > > Architecture: powerpc64 using: > - little-endian > - Power10 features > > [some description here] > > Also, all the other powerpc cra_driver_names follow > alg-arch > not > arch-alg > > so > .base.cra_driver_name = "p10_aes_gcm", > might be better as > .base.cra_driver_name = "aes-gcm-p10", > > Patch 4 seems to have code for lots of other modes like CBC and XTS. > Does the perl script strip out all of that? > > >
diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig index c1b964447401..3a403b7aad82 100644 --- a/arch/powerpc/crypto/Kconfig +++ b/arch/powerpc/crypto/Kconfig @@ -94,4 +94,15 @@ config CRYPTO_AES_PPC_SPE architecture specific assembler implementations that work on 1KB tables or 256 bytes S-boxes. +config CRYPTO_P10_AES_GCM + tristate "Stitched AES/GCM acceleration support on P10+ CPU (PPC)" + depends on PPC64 && POWER10_CPU && CPU_LITTLE_ENDIAN + select CRYPTO_LIB_AES + select CRYPTO_ALGAPI + select CRYPTO_AEAD + default m + help + Support for cryptographic acceleration instructions on Power10+ CPU. + This module supports stitched acceleration for AES/GCM in hardware. + endmenu diff --git a/arch/powerpc/crypto/Makefile b/arch/powerpc/crypto/Makefile index 4808d97fede5..36373a028f0e 100644 --- a/arch/powerpc/crypto/Makefile +++ b/arch/powerpc/crypto/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_CRYPTO_SHA256_PPC_SPE) += sha256-ppc-spe.o obj-$(CONFIG_CRYPTO_CRC32C_VPMSUM) += crc32c-vpmsum.o obj-$(CONFIG_CRYPTO_CRCT10DIF_VPMSUM) += crct10dif-vpmsum.o obj-$(CONFIG_CRYPTO_VPMSUM_TESTER) += crc-vpmsum_test.o +obj-$(CONFIG_CRYPTO_P10_AES_GCM) += p10-aes-gcm-crypto.o aes-ppc-spe-y := aes-spe-core.o aes-spe-keys.o aes-tab-4k.o aes-spe-modes.o aes-spe-glue.o md5-ppc-y := md5-asm.o md5-glue.o @@ -21,3 +22,15 @@ sha1-ppc-spe-y := sha1-spe-asm.o sha1-spe-glue.o sha256-ppc-spe-y := sha256-spe-asm.o sha256-spe-glue.o crc32c-vpmsum-y := crc32c-vpmsum_asm.o crc32c-vpmsum_glue.o crct10dif-vpmsum-y := crct10dif-vpmsum_asm.o crct10dif-vpmsum_glue.o +p10-aes-gcm-crypto-y := p10-aes-gcm-glue.o p10_aes_gcm.o ghashp8-ppc.o aesp8-ppc.o + +quiet_cmd_perl = PERL $@ + cmd_perl = $(PERL) $< $(if $(CONFIG_CPU_LITTLE_ENDIAN), linux-ppc64le, linux-ppc64) > $@ + +targets += aesp8-ppc.S ghashp8-ppc.S + +$(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S: $(obj)/%.S: $(src)/%.pl FORCE + $(call if_changed,perl) + +OBJECT_FILES_NON_STANDARD_aesp8-ppc.o := y +OBJECT_FILES_NON_STANDARD_ghashp8-ppc.o := y
Defined CRYPTO_P10_AES_GCM in Kconfig to support AES/GCM stitched implementation for Power10+ CPU. Added a new module driver p10-aes-gcm-crypto. Signed-off-by: Danny Tsen <dtsen@linux.ibm.com> --- arch/powerpc/crypto/Kconfig | 11 +++++++++++ arch/powerpc/crypto/Makefile | 13 +++++++++++++ 2 files changed, 24 insertions(+)