linux-stable.git/drivers/crypto/caam, branch v4.20.2

crypto: caam - add SPDX license identifier to all files

2018-10-17T06:16:18+00:00

Previously, a tree-wide change added SPDX license identifiers to
files lacking licensing information:
b24413180f56 ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license")

To be consistent update the rest of the files:
-files with license specified by means of MODULE_LICENSE()
-files with complete license text
-Kconfig

Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam/qi - simplify CGR allocation, freeing

2018-10-17T06:14:46+00:00

CGRs (Congestion Groups) have to be freed by the same CPU that
initialized them.
This is why currently the driver takes special measures; however, using
set_cpus_allowed_ptr() is incorrect - as reported by Sebastian.

Instead of the generic solution of replacing set_cpus_allowed_ptr() with
work_on_cpu_safe(), we use the qman_delete_cgr_safe() QBMan API instead
of qman_delete_cgr() - which internally takes care of proper CGR
deletion.

Link: https://lkml.kernel.org/r/20181005125443.dfhd2asqktm22ney@linutronix.de
Reported-by: Sebastian Andrzej Siewior 
Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam/qi2 - avoid double export

2018-10-08T05:45:41+00:00

Both the caam ctrl file and dpaa2_caam export a couple of flags. They
use an #ifdef check to make sure that each flag is only built once,
but this fails if they are both loadable modules:

WARNING: drivers/crypto/caam/dpaa2_caam: 'caam_little_end' exported twice. Previous export was in drivers/crypto/caam/caam.ko
WARNING: drivers/crypto/caam/dpaa2_caam: 'caam_imx' exported twice. Previous export was in drivers/crypto/caam/caam.ko

Change the #ifdef to an IS_ENABLED() check in order to make it work in
all configurations. It may be better to redesign this aspect of the
two drivers in a cleaner way.

Fixes: 8d818c105501 ("crypto: caam/qi2 - add DPAA2-CAAM driver")
Signed-off-by: Arnd Bergmann 
Acked-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam/qi2 - add CONFIG_NETDEVICES dependency

2018-10-05T02:22:48+00:00

This driver implements a (part of a) network driver, and fails to
build if we have turned off networking support:

drivers/crypto/caam/caamalg_qi2.o: In function `dpaa2_caam_fqdan_cb':
caamalg_qi2.c:(.text+0x577c): undefined reference to `napi_schedule_prep'
caamalg_qi2.c:(.text+0x578c): undefined reference to `__napi_schedule_irqoff'
drivers/crypto/caam/caamalg_qi2.o: In function `dpaa2_dpseci_poll':
caamalg_qi2.c:(.text+0x59b8): undefined reference to `napi_complete_done'
drivers/crypto/caam/caamalg_qi2.o: In function `dpaa2_caam_remove':
caamalg_qi2.c:(.text.unlikely+0x4e0): undefined reference to `napi_disable'
caamalg_qi2.c:(.text.unlikely+0x4e8): undefined reference to `netif_napi_del'
drivers/crypto/caam/caamalg_qi2.o: In function `dpaa2_dpseci_setup':
caamalg_qi2.c:(.text.unlikely+0xc98): undefined reference to `netif_napi_add'

From what I can tell, CONFIG_NETDEVICES is the correct dependency here,
and adding it fixes the randconfig failures.

Fixes: 8d818c105501 ("crypto: caam/qi2 - add DPAA2-CAAM driver")
Signed-off-by: Arnd Bergmann 
Acked-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam/qi2 - add support for ahash algorithms

2018-09-21T05:24:51+00:00

Add support for unkeyed and keyed (hmac) md5, sha algorithms.

Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam - export ahash shared descriptor generation

2018-09-21T05:24:51+00:00

caam/qi2 driver will support ahash algorithms,
thus move ahash descriptors generation in a shared location.

Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam/qi2 - add skcipher algorithms

2018-09-21T05:24:51+00:00

Add support to submit the following skcipher algorithms
via the DPSECI backend:
cbc({aes,des,des3_ede})
ctr(aes), rfc3686(ctr(aes))
xts(aes)

Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam/qi2 - add DPAA2-CAAM driver

2018-09-21T05:24:51+00:00

Add CAAM driver that works using the DPSECI backend, i.e. manages
DPSECI DPAA2 objects sitting on the Management Complex (MC) fsl-mc bus.

Data transfers (crypto requests) are sent/received to/from CAAM crypto
engine via Queue Interface (v2), this being similar to existing caam/qi.
OTOH, configuration/setup (obtaining virtual queue IDs, authorization
etc.) is done by sending commands to the MC f/w.

Note that the CAAM accelerator included in DPAA2 platforms still has
Job Rings. However, the driver being added does not handle access
via this backend. Kconfig & Makefile are updated such that DPAA2-CAAM
(a.k.a. "caam/qi2") driver does not depend on caam/jr or caam/qi
backends - which rely on platform bus support (ctrl.c).

Support for the following aead and authenc algorithms is also added
in this patch:
-aead:
gcm(aes)
rfc4106(gcm(aes))
rfc4543(gcm(aes))
-authenc:
authenc(hmac({md5,sha*}),cbc({aes,des,des3_ede}))
echainiv(authenc(hmac({md5,sha*}),cbc({aes,des,des3_ede})))
authenc(hmac({md5,sha*}),rfc3686(ctr(aes))
seqiv(authenc(hmac({md5,sha*}),rfc3686(ctr(aes)))

Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam - add Queue Interface v2 error codes

2018-09-21T05:24:51+00:00

Add support to translate error codes returned by QI v2, i.e.
Queue Interface present on DataPath Acceleration Architecture
v2 (DPAA2).

Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam - add DPAA2-CAAM (DPSECI) backend API

2018-09-21T05:24:51+00:00

Add the low-level API that allows to manage DPSECI DPAA2 objects
that sit on the Management Complex (MC) fsl-mc bus.

The API is compatible with MC firmware 10.2.0+.

Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu