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linux/drivers/crypto
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Gary R Hook f8d05099ec crypto: ccp - Change ISR handler method for a v5 CCP 
commit 6263b51eb3 upstream.

The CCP has the ability to perform several operations simultaneously,
but only one interrupt.  When implemented as a PCI device and using
MSI-X/MSI interrupts, use a tasklet model to service interrupts. By
disabling and enabling interrupts from the CCP, coupled with the
queuing that tasklets provide, we can ensure that all events
(occurring on the device) are recognized and serviced.

This change fixes a problem wherein 2 or more busy queues can cause
notification bits to change state while a (CCP) interrupt is being
serviced, but after the queue state has been evaluated. This results
in the event being 'lost' and the queue hanging, waiting to be
serviced. Since the status bits are never fully de-asserted, the
CCP never generates another interrupt (all bits zero -> one or more
bits one), and no further CCP operations will be executed.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-05-20 14:28:37 +02:00
..
amcc crypto4xx: integrate ppc4xx-rng into crypto4xx 2016-04-20 17:50:02 +08:00
caam crypto: caam - fix error path for ctx_dma mapping failure 2017-05-14 14:00:13 +02:00
ccp crypto: ccp - Change ISR handler method for a v5 CCP 2017-05-20 14:28:37 +02:00
chelsio crypto: chcr - Check device is allocated before use 2017-02-14 15:25:32 -08:00
marvell crypto: marvell - Don't corrupt state of an STD req for re-stepped ahash 2016-12-07 19:55:17 +08:00
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-10-10 11:19:47 +08:00
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 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-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 - Add missing npe_c release in error branches 2016-08-09 18:47:03 +08:00
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 - Use consistent indentation for variables and members 2016-05-31 17:52:30 +08:00
sahara.c crypto: sahara - Use skcipher for fallback 2016-07-01 23:45:10 +08:00
talitos.c crypto: talitos - templates for AEAD using HMAC_SNOOP_NO_AFEU 2016-06-08 16:20:04 +08:00
talitos.h crypto: talitos - add new crypto modes 2015-12-04 22:29:56 +08:00