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linux/drivers/crypto
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Christian Lamparter 1525e330d6 crypto: crypto4xx - increase context and scatter ring buffer elements 
[ Upstream commit 778f81d6cd ]

If crypto4xx is used in conjunction with dm-crypt, the available
ring buffer elements are not enough to handle the load properly.

On an aes-cbc-essiv:sha256 encrypted swap partition the read
performance is abyssal: (tested with hdparm -t)

/dev/mapper/swap_crypt:
 Timing buffered disk reads:  14 MB in  3.68 seconds =   3.81 MB/sec

The patch increases both PPC4XX_NUM_SD and PPC4XX_NUM_PD to 256.
This improves the performance considerably:

/dev/mapper/swap_crypt:
 Timing buffered disk reads: 104 MB in  3.03 seconds =  34.31 MB/sec

Furthermore, PPC4XX_LAST_SD, PPC4XX_LAST_GD and PPC4XX_LAST_PD
can be easily calculated from their respective PPC4XX_NUM_*
constant.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-12-25 14:23:43 +01:00
..
amcc crypto: crypto4xx - increase context and scatter ring buffer elements 2017-12-25 14:23:43 +01:00
caam Revert "crypto: caam - get rid of tasklet" 2017-12-09 22:01:46 +01:00
ccp crypto: ccp - Set the AES size field for all modes 2017-11-08 10:08:33 +01:00
chelsio crypto: chcr - Check device is allocated before use 2017-02-14 15:25:32 -08:00
marvell crypto: marvell - Copy IVDIG before launching partial DMA ahash requests 2017-11-30 08:39:14 +00:00
nx crypto: nx - off by one bug in nx_of_update_msc() 2016-07-19 12:01:47 +08:00
qat crypto: qat - zero esram only for DH85x devices 2017-02-14 15:25:33 -08:00
qce crypto: qce - Use skcipher for fallback 2016-07-01 23:45:09 +08:00
rockchip crypto: rockchip - use devm_add_action_or_reset() 2016-08-24 21:07:11 +08:00
sunxi-ss crypto: sun4i-ss - mark sun4i_hash() static 2016-09-22 18:32:48 +08:00
ux500 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-07-21 12:26:55 +08:00
vmx crypto: vmx - disable preemption to enable vsx in aes_ctr.c 2017-11-15 15:53:13 +01:00
atmel-aes-regs.h crypto: atmel-aes - add support to GCM mode 2015-12-23 18:19:58 +08:00
atmel-aes.c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-03-17 11:22:54 -07:00
atmel-sha-regs.h crypto: atmel-sha - fix context switches 2016-01-25 22:42:07 +08:00
atmel-sha.c crypto: atmel - only treat EBUSY as transient if backlog 2017-07-21 07:42:23 +02:00
atmel-tdes-regs.h crypto: atmel-tdes - add support for latest release of the IP (0x700) 2013-03-10 16:46:42 +08:00
atmel-tdes.c crypto: atmel - fix checks of error code returned by devm_ioremap_resource() 2016-03-11 21:19:19 +08:00
bfin_crc.c crypto: bfin_crc - Simplify use of devm_ioremap_resource 2016-07-05 23:05:24 +08:00
bfin_crc.h crypto: bfin_crc - access crc registers by readl and writel functions 2014-04-16 20:40:15 +08:00
geode-aes.c crypto: geode - Don't use tfm->__crt_alg->cra_name directly 2014-05-22 21:03:13 +08:00
geode-aes.h crypto: geode - Consistently use AES_KEYSIZE_128 2014-05-22 21:03:12 +08:00
hifn_795x.c crypto: squash lines for simple wrapper functions 2016-09-13 20:27:26 +08:00
img-hash.c crypto: img-hash - Fix set_reqsize call 2016-08-09 18:47:23 +08:00
ixp4xx_crypto.c crypto: ixp4xx - Fix error handling path in 'aead_perform()' 2017-08-24 17:12:18 -07:00
Kconfig Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-10-10 14:04:16 -07:00
Makefile crypto: Added Chelsio Menu to the Kconfig file 2016-08-19 00:00:37 -07:00
mv_cesa.c crypto: mv_cesa - remove NO_IRQ reference 2016-09-07 21:08:32 +08:00
mv_cesa.h crypto: mv_cesa - Add missing #define 2014-08-29 21:46:36 +08:00
mxc-scc.c crypto: mxc-scc - check clk_prepare_enable() error 2016-08-24 21:04:50 +08:00
mxs-dcp.c crypto: mxs-dcp - Use skcipher for fallback 2016-07-01 23:45:08 +08:00
n2_asm.S crypto: n2 - Add Niagara2 crypto driver 2010-05-19 14:14:04 +10:00
n2_core.c crypto: n2 - Remove return statement from void function 2016-04-05 20:35:44 +08:00
n2_core.h crypto: n2 - Add Niagara2 crypto driver 2010-05-19 14:14:04 +10:00
omap-aes.c crypto: omap-aes - fix error return code in omap_aes_probe() 2016-09-22 18:27:35 +08:00
omap-des.c crypto: omap-des - fix error return code in omap_des_probe() 2016-09-22 18:27:34 +08:00
omap-sham.c crypto: omap-sham - shrink the internal buffer size 2016-09-22 18:32:53 +08:00
padlock-aes.c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-01-12 18:51:14 -08:00
padlock-sha.c x86/cpufeature: Remove unused and seldomly used cpu_has_xx macros 2015-12-19 11:49:55 +01:00
picoxcell_crypto.c crypto: picoxcell - Use skcipher for fallback 2016-07-01 23:45:09 +08:00
picoxcell_crypto_regs.h crypto: picoxcell - add support for the picoxcell crypto engines 2011-02-21 22:42:40 +11:00
s5p-sss.c crypto: s5p-sss - Fix completing crypto request in IRQ handler 2017-12-14 09:28:21 +01:00
sahara.c crypto: sahara - Use skcipher for fallback 2016-07-01 23:45:10 +08:00
talitos.c crypto: talitos - fix ctr-aes-talitos 2017-12-14 09:28:15 +01:00
talitos.h crypto: talitos - add new crypto modes 2015-12-04 22:29:56 +08:00