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b087dfab4d
linux/drivers/crypto
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Patrick Steuer b087dfab4d s390/crypto: add SIMD implementation for ChaCha20 
Add an implementation of the ChaCha20 stream cipher (see e.g. RFC 7539)
that makes use of z13's vector instruction set extension.

The original implementation is by Andy Polyakov which is
adapted for kernel use.

Four to six blocks are processed in parallel resulting in a performance
gain for inputs >= 256 bytes.

chacha20-generic

1 operation in 622 cycles (256 bytes)
1 operation in 2346 cycles (1024 bytes)

chacha20-s390

1 operation in 218 cycles (256 bytes)
1 operation in 647 cycles (1024 bytes)

Cc: Andy Polyakov <appro@openssl.org>
Reviewed-by: Harald Freudenberger <freude@de.ibm.com>
Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-12-06 14:42:24 +01:00
..
allwinner crypto: sun8i-ce - use kfree_sensitive to clear and free sensitive data 2021-08-12 19:16:57 +08:00
amcc crypto: amcc - fix incorrect kernel-doc comment syntax in files 2021-03-26 20:15:58 +11:00
amlogic crypto: amlogic - Fix the parameter of dma_unmap_sg() 2021-03-26 20:02:34 +11:00
axis crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
bcm crypto: bcm - Fix a whole host of kernel-doc misdemeanours 2021-03-26 20:02:35 +11:00
caam crypto: caam - disable pkc for non-E SoCs 2021-09-24 16:03:04 +08:00
cavium PCI: Change the type of probe argument in reset functions 2021-08-18 17:32:42 -05:00
ccp Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-11-01 21:24:02 -07:00
ccree crypto: ccree - avoid out-of-range warnings from clang 2021-10-08 20:02:37 +08:00
chelsio treewide: Replace open-coded flex arrays in unions 2021-10-18 12:28:53 -07:00
gemini crypto: sl3516 - Typo s/Stormlink/Storlink/ 2021-06-28 11:28:08 +08:00
hisilicon pci-v5.16-changes 2021-11-06 14:36:12 -07:00
inside-secure crypto: inside-secure - Minor typo fix in the file safexcel.c 2021-03-26 20:02:35 +11:00
keembay crypto: keembay-ocs-ecc - Add Keem Bay OCS ECC Driver 2021-10-29 21:04:03 +08:00
marvell crypto: octeontx2 - set assoclen in aead_do_fallback() 2021-10-15 18:45:34 +08:00
nx powerpc updates for 5.14 2021-07-02 12:54:34 -07:00
qat pci-v5.16-changes 2021-11-06 14:36:12 -07:00
qce crypto: qce - fix error return code in qce_skcipher_async_req_handle() 2021-06-11 15:03:29 +08:00
rockchip crypto: rockchip - delete unneeded variable initialization 2021-04-09 17:45:13 +10:00
stm32 crypto: stm32/cryp - Fix PM reference leak on stm32-cryp.c 2021-04-16 21:16:33 +10:00
ux500 crypto: ux500 - Fix error return code in hash_hw_final() 2021-05-14 19:07:58 +08:00
virtio crypto: virtio - Replace deprecated CPU-hotplug functions. 2021-08-12 19:16:58 +08:00
vmx crypto: vmx - fix incorrect kernel-doc comment syntax in files 2021-03-26 20:15:58 +11:00
xilinx crypto: algapi - Remove skbuff.h inclusion 2020-08-20 14:04:28 +10:00
atmel-aes-regs.h
atmel-aes.c crypto: atmel-aes - use swap() 2021-07-30 10:58:37 +08:00
atmel-authenc.h crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
atmel-ecc.c crypto: atmel-ecc - Struct headers need to start with keyword 'struct' 2021-03-26 20:02:36 +11:00
atmel-i2c.c crypto: atmel - use the correct print format 2021-04-16 21:16:33 +10:00
atmel-i2c.h
atmel-sha204a.c
atmel-sha-regs.h
atmel-sha.c crypto: atmel - use the correct print format 2021-04-16 21:16:33 +10:00
atmel-tdes-regs.h
atmel-tdes.c crypto: atmel - Set OFB's blocksize to 1 2021-07-30 10:58:34 +08:00
exynos-rng.c
geode-aes.c crypto: geode - use DEFINE_SPINLOCK() for spinlock 2021-04-16 21:16:31 +10:00
geode-aes.h
hifn_795x.c crypto: drivers - use semicolons rather than commas to separate statements 2020-10-02 18:02:15 +10:00
img-hash.c crypto: img-hash - remove need for error return variable ret 2021-09-17 11:06:14 +08:00
ixp4xx_crypto.c ARM: SoC changes for 5.14 2021-07-10 09:22:44 -07:00
Kconfig s390/crypto: add SIMD implementation for ChaCha20 2021-12-06 14:42:24 +01:00
Makefile crypto: sl3516 - Add sl3516 crypto engine 2021-06-11 15:03:29 +08:00
mxs-dcp.c crypto: mxs-dcp - Use sg_mapping_iter to copy data 2021-07-16 15:49:34 +08:00
n2_asm.S
n2_core.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
n2_core.h
omap-aes-gcm.c
omap-aes.c crypto: omap - Fix inconsistent locking of device lists 2021-08-21 15:44:53 +08:00
omap-aes.h crypto: omap-aes - permit asynchronous skcipher as fallback 2020-07-16 21:49:02 +10:00
omap-crypto.c crypto: omap - Avoid redundant copy when using truncated sg list 2021-08-21 15:44:53 +08:00
omap-crypto.h
omap-des.c crypto: omap - Fix inconsistent locking of device lists 2021-08-21 15:44:53 +08:00
omap-sham.c crypto: omap - Fix inconsistent locking of device lists 2021-08-21 15:44:53 +08:00
padlock-aes.c crypto: algapi - Remove skbuff.h inclusion 2020-08-20 14:04:28 +10:00
padlock-sha.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
qcom-rng.c crypto: algapi - Remove skbuff.h inclusion 2020-08-20 14:04:28 +10:00
s5p-sss.c crypto: s5p-sss - Add error handling in s5p_aes_probe() 2021-10-29 21:04:03 +08:00
sa2ul.c crypto: sa2ul - Use the defined variable to clean code 2021-10-29 21:04:03 +08:00
sa2ul.h crypto: sa2ul - Add support for AM64 2021-04-22 17:31:30 +10:00
sahara.c crypto: sahara - Remove unused .id_table support 2021-01-03 08:41:34 +11:00
talitos.c crypto: talitos - Fix ctr(aes) on SEC1 2021-01-29 15:57:59 +11:00
talitos.h crypto: talitos - Work around SEC6 ERRATA (AES-CTR mode data size error) 2021-01-29 15:57:58 +11:00