OSDN Git Service
Herbert Xu [Tue, 12 Jul 2016 05:17:48 +0000 (13:17 +0800)]
crypto: cts - Convert to skcipher
This patch converts cts over to the skcipher interface. It also
optimises the implementation to use one CBC operation for all but
the last block, which is then processed separately.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:47 +0000 (13:17 +0800)]
crypto: null - Remove default null blkcipher
The default null blkcipher is no longer used and can now be removed.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:46 +0000 (13:17 +0800)]
crypto: aead - Remove blkcipher null for IV generators
The blkcipher null object is no longer used and can now be removed.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:45 +0000 (13:17 +0800)]
crypto: seqiv - Use skcipher
This patch replaces use of the obsolete blkcipher with skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:43 +0000 (13:17 +0800)]
crypto: echainiv - Use skcipher
This patch replaces use of the obsolete blkcipher with skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:42 +0000 (13:17 +0800)]
crypto: aead - Add skcipher null for IV generators
This patch adds an skcipher null object alongside the existing
null blkcipher so that IV generators using it can switch over
to skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:40 +0000 (13:17 +0800)]
crypto: chacha20poly1305 - Use skcipher
This patch converts chacha20poly1305 to use the new skcipher
interface as opposed to ablkcipher.
It also fixes a buglet where we may end up with an async poly1305
when the user asks for a async algorithm. This shouldn't be a
problem yet as there aren't any async implementations of poly1305
out there.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:39 +0000 (13:17 +0800)]
crypto: gcm - Use skcipher
This patch converts gcm to use the new skcipher interface as opposed
to ablkcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:38 +0000 (13:17 +0800)]
crypto: ccm - Use skcipher
This patch converts ccm to use the new skcipher interface as opposed
to ablkcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:37 +0000 (13:17 +0800)]
crypto: ctr - Use skcipher in rfc3686
This patch converts rfc3686 to use the new skcipher interface as
opposed to ablkcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:35 +0000 (13:17 +0800)]
crypto: authencesn - Use skcipher
This patch converts authencesn to use the new skcipher interface as
opposed to ablkcipher.
It also fixes a little bug where if a sync version of authencesn
is requested we may still end up using an async ahash. This should
have no effect as none of the authencesn users can request for a
sync authencesn.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:34 +0000 (13:17 +0800)]
crypto: authenc - Use skcipher
This patch converts authenc to use the new skcipher interface as
opposed to ablkcipher.
It also fixes a little bug where if a sync version of authenc
is requested we may still end up using an async ahash. This should
have no effect as none of the authenc users can request for a
sync authenc.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:33 +0000 (13:17 +0800)]
crypto: aead - Add chunk size
This patch adds a chunk size parameter to aead algorithms, just
like the chunk size for skcipher algorithms.
However, unlike skcipher we do not currently export this to AEAD
users. It is only meant to be used by AEAD implementors for now.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:32 +0000 (13:17 +0800)]
crypto: null - Add new default null skcipher
Current the default null skcipher is actually a crypto_blkcipher.
This patch creates a synchronous crypto_skcipher version of the
null cipher which unfortunately has to settle for the name skcipher2.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 12 Jul 2016 05:17:31 +0000 (13:17 +0800)]
crypto: skcipher - Add low-level skcipher interface
This patch allows skcipher algorithms and instances to be created
and registered with the crypto API. They are accessible through
the top-level skcipher interface, along with ablkcipher/blkcipher
algorithms and instances.
This patch also introduces a new parameter called chunk size
which is meant for ciphers such as CTR and CTS which ostensibly
can handle arbitrary lengths, but still behave like block ciphers
in that you can only process a partial block at the very end.
For these ciphers the block size will continue to be set to 1
as it is now while the chunk size will be set to the underlying
block size.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tim Chen [Fri, 8 Jul 2016 16:28:03 +0000 (09:28 -0700)]
crypto: sha-mb - Cleanup code to use || instead of |
for condition comparison and cleanup multiline comment style
In sha*_ctx_mgr_submit, we currently use the | operator instead of ||
((ctx->partial_block_buffer_length) | (len < SHA1_BLOCK_SIZE))
Switching it to || and remove extraneous paranthesis to
adhere to coding style.
Also cleanup inconsistent multiline comment style.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Thu, 7 Jul 2016 14:52:17 +0000 (15:52 +0100)]
crypto: qat - Stop dropping leading zeros from RSA output
There is not need to drop leading zeros from the RSA output
operations results.
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Thu, 7 Jul 2016 14:27:29 +0000 (15:27 +0100)]
crypto: qat - Add DH support
Add DH support under kpp api. Drop struct qat_rsa_request and
introduce a more generic struct qat_asym_request and share it
between RSA and DH requests.
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Masanari Iida [Thu, 7 Jul 2016 12:58:16 +0000 (21:58 +0900)]
crypto: doc - Fix double words "the the" in crypto-API.tmpl
This patch fix double words "the the" in crypto-API.tmpl.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Mon, 4 Jul 2016 16:21:40 +0000 (17:21 +0100)]
crypto: qat - Add RSA CRT mode
Extend qat driver to use RSA CRT mode when all CRT related components are
present in the private key. Simplify code in qat_rsa_setkey by adding
qat_rsa_clear_ctx.
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Mon, 4 Jul 2016 16:21:39 +0000 (17:21 +0100)]
crypto: testmgr - Add 4K private key to RSA testvector
Key generated with openssl. It also contains all fields required
for testing CRT mode
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Mon, 4 Jul 2016 16:21:38 +0000 (17:21 +0100)]
crypto: rsa - Store rest of the private key components
When parsing a private key, store all non-optional fields. These
are required for enabling CRT mode for decrypt and verify
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Conor McLoughlin [Mon, 4 Jul 2016 15:26:00 +0000 (16:26 +0100)]
crypto: qat - Use alternative reset methods depending on the specific device
Different product families will use FLR or SBR.
Virtual Function devices have no reset method.
Signed-off-by: Conor McLoughlin <conor.mcloughlin@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Amitoj Kaur Chawla [Mon, 4 Jul 2016 13:00:21 +0000 (18:30 +0530)]
crypto: bfin_crc - Simplify use of devm_ioremap_resource
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to
devm_ioremap_resource.
The Coccinelle semantic patch that makes this change is as follows:
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tudor Ambarus [Mon, 4 Jul 2016 10:12:08 +0000 (13:12 +0300)]
crypto: caam - add support for RSA algorithm
Add RSA support to caam driver.
Initial author is Yashpal Dutta <yashpal.dutta@freescale.com>.
Signed-off-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Mon, 4 Jul 2016 09:52:34 +0000 (10:52 +0100)]
crypto: testmgr - Set err before proceeding
Report correct error in case of failure
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Mon, 4 Jul 2016 09:49:28 +0000 (10:49 +0100)]
crypto: qat - Switch to new rsa_helper functions
Drop all asn1 related code and use the new rsa_helper
functions rsa_parse_[pub|priv]_key for parsing the key
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Anton Blanchard [Thu, 30 Jun 2016 22:19:45 +0000 (08:19 +1000)]
crypto: powerpc - Add POWER8 optimised crc32c
Use the vector polynomial multiply-sum instructions in POWER8 to
speed up crc32c.
This is just over 41x faster than the slice-by-8 method that it
replaces. Measurements on a 4.1 GHz POWER8 show it sustaining
52 GiB/sec.
A simple btrfs write performance test:
dd if=/dev/zero of=/mnt/tmpfile bs=1M count=4096
sync
is over 3.7x faster.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Anton Blanchard [Thu, 30 Jun 2016 22:19:44 +0000 (08:19 +1000)]
powerpc: define FUNC_START/FUNC_END
gcc provides FUNC_START/FUNC_END macros to help with creating
assembly functions. Mirror these in the kernel so we can more easily
share code between userspace and the kernel. FUNC_END is just a
stub since we don't currently annotate the end of kernel functions.
It might make sense to do a wholesale search and replace, but for
now just create a couple of defines.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Sun, 3 Jul 2016 02:46:11 +0000 (10:46 +0800)]
crypto: rsa-pkcs1pad - Fix regression from leading zeros
As the software RSA implementation now produces fixed-length
output, we need to eliminate leading zeros in the calling code
instead.
This patch does just that for pkcs1pad signature verification.
Fixes:
9b45b7bba3d2 ("crypto: rsa - Generate fixed-length output")
Reported-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
raveendra padasalagi [Fri, 1 Jul 2016 05:46:54 +0000 (11:16 +0530)]
crypto: sha3 - Add HMAC-SHA3 test modes and test vectors
This patch adds HMAC-SHA3 test modes in tcrypt module
and related test vectors.
Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Bin Liu [Thu, 30 Jun 2016 19:04:11 +0000 (14:04 -0500)]
crypto: omap-sham - increase cra_proirity to 400
The arm-neon-sha implementations have cra_priority of 150...300, so
increase omap-sham priority to 400 to ensure it is on top of any
software alg.
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Thu, 30 Jun 2016 03:00:13 +0000 (11:00 +0800)]
crypto: tcrypt - Do not bail on EINPROGRESS in multibuffer hash test
The multibuffer hash speed test is incorrectly bailing because
of an EINPROGRESS return value. This patch fixes it by setting
ret to zero if it is equal to -EINPROGRESS.
Reported-by: Megha Dey <megha.dey@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 11:32:28 +0000 (19:32 +0800)]
crypto: rsa-pkcs1pad - Avoid copying output when possible
In the vast majority of cases (2^-32 on 32-bit and 2^-64 on 64-bit)
cases, the result from encryption/signing will require no padding.
This patch makes these two operations write their output directly
to the final destination. Only in the exceedingly rare cases where
fixup is needed to we copy it out and back to add the leading zeroes.
This patch also makes use of the crypto_akcipher_set_crypt API
instead of writing the akcipher request directly.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 11:32:27 +0000 (19:32 +0800)]
crypto: rsa-pkcs1pad - Move key size check to setkey
Rather than repeatedly checking the key size on each operation,
we should be checking it once when the key is set.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 11:32:26 +0000 (19:32 +0800)]
crypto: rsa-pkcs1pad - Always use GFP_KERNEL
We don't currently support using akcipher in atomic contexts,
so GFP_KERNEL should always be used.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 11:32:24 +0000 (19:32 +0800)]
crypto: rsa-pkcs1pad - Remove bogus page splitting
The helper pkcs1pad_sg_set_buf tries to split a buffer that crosses
a page boundary into two SG entries. This is unnecessary. This
patch removes that.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 11:32:23 +0000 (19:32 +0800)]
crypto: rsa-pkcs1pad - Require hash to be present
The only user of rsa-pkcs1pad always uses the hash so there is
no reason to support the case of not having a hash.
This patch also changes the digest info lookup so that it is
only done once during template instantiation rather than on each
operation.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 11:32:22 +0000 (19:32 +0800)]
lib/mpi: Do not do sg_virt
Currently the mpi SG helpers use sg_virt which is completely
broken. It happens to work with normal kernel memory but will
fail with anything that is not linearly mapped.
This patch fixes this by using the SG iterator helpers.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 11:32:21 +0000 (19:32 +0800)]
crypto: rsa - Generate fixed-length output
Every implementation of RSA that we have naturally generates
output with leading zeroes. The one and only user of RSA,
pkcs1pad wants to have those leading zeroes in place, in fact
because they are currently absent it has to write those zeroes
itself.
So we shouldn't be stripping leading zeroes in the first place.
In fact this patch makes rsa-generic produce output with fixed
length so that pkcs1pad does not need to do any extra work.
This patch also changes DH to use the new interface.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 11:32:20 +0000 (19:32 +0800)]
crypto: testmgr - Allow leading zeros in RSA
This patch allows RSA implementations to produce output with
leading zeroes. testmgr will skip leading zeroes when comparing
the output.
This patch also tries to make the RSA test function generic enough
to potentially handle other akcipher algorithms.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:04:14 +0000 (18:04 +0800)]
crypto: tcrypt - Add speed test for cts
This patch adds speed tests for cts(cbc(aes)).
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:04:13 +0000 (18:04 +0800)]
crypto: api - Add crypto_inst_setname
This patch adds the helper crypto_inst_setname because the current
helper crypto_alloc_instance2 is no longer useful given that we
now look up the algorithm after we allocate the instance object.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:04:07 +0000 (18:04 +0800)]
crypto: s390/aes - Use skcipher for fallback
This patch replaces use of the obsolete blkcipher with skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:04:05 +0000 (18:04 +0800)]
crypto: sahara - Use skcipher for fallback
This patch replaces use of the obsolete ablkcipher with skcipher.
It also removes shash_fallback which is totally unused.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:04:04 +0000 (18:04 +0800)]
crypto: qce - Use skcipher for fallback
This patch replaces use of the obsolete ablkcipher with skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:04:03 +0000 (18:04 +0800)]
crypto: picoxcell - Use skcipher for fallback
This patch replaces use of the obsolete ablkcipher with skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:04:02 +0000 (18:04 +0800)]
crypto: mxs-dcp - Use skcipher for fallback
This patch replaces use of the obsolete ablkcipher with skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:04:01 +0000 (18:04 +0800)]
crypto: ccp - Use skcipher for fallback
This patch replaces use of the obsolete ablkcipher with skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:03:59 +0000 (18:03 +0800)]
crypto: aesni - Use crypto_cipher to derive rfc4106 subkey
Currently aesni uses an async ctr(aes) to derive the rfc4106
subkey, which was presumably copied over from the generic rfc4106
code. Over there it's done that way because we already have a
ctr(aes) spawn. But it is simply overkill for aesni since we
have to go get a ctr(aes) from scratch anyway.
This patch simplifies the subkey derivation by using a straight
aes cipher instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:03:50 +0000 (18:03 +0800)]
crypto: tcrypt - Use skcipher
This patch converts tcrypt to use the new skcipher interface as
opposed to ablkcipher/blkcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:03:47 +0000 (18:03 +0800)]
crypto: ahash - Add padding in crypto_ahash_extsize
The function crypto_ahash_extsize did not include padding when
computing the tfm context size. This patch fixes this by using
the generic crypto_alg_extsize helper.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 29 Jun 2016 10:03:46 +0000 (18:03 +0800)]
crypto: authenc - Consider ahash ASYNC bit
As it is, if you get an async ahash with a sync skcipher you'll
end up with a sync authenc, which is wrong.
This patch fixes it by considering the ASYNC bit from ahash as
well.
It also fixes a little bug where if a sync version of authenc
is requested we may still end up using an async ahash.
Neither of them should have any effect as none of the authenc
users can request for a sync authenc.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Harsh Jain [Tue, 28 Jun 2016 18:54:43 +0000 (00:24 +0530)]
crypto: authenc - Remove redundant sg_init_table call.
Remove redundant sg_init_table call. scatterwalk_ffwd doing the same.
Signed-off-by: Harsh Jain <harshjain.prof@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 28 Jun 2016 12:33:52 +0000 (20:33 +0800)]
crypto: tcrypt - Fix memory leaks/crashes in multibuffer hash speed test
This patch resolves a number of issues with the mb speed test
function:
* The tfm is never freed.
* Memory is allocated even when we're not using mb.
* When an error occurs we don't wait for completion for other requests.
* When an error occurs during allocation we may leak memory.
* The test function ignores plen but still runs for plen != blen.
* The backlog flag is incorrectly used (may crash).
This patch tries to resolve all these issues as well as making
the code consistent with the existing hash speed testing function.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Herbert Xu [Tue, 28 Jun 2016 08:41:38 +0000 (16:41 +0800)]
crypto: tcrypt - Use unsigned long for mb ahash cycle counter
For the timescales we are working against there is no need to
go beyond unsigned long.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Krzysztof Kozlowski [Tue, 28 Jun 2016 07:23:06 +0000 (09:23 +0200)]
crypto: tcrypt - Fix mixing printk/pr_err and obvious indentation issues
The recently added test_mb_ahash_speed() has clearly serious coding
style issues. Try to fix some of them:
1. Don't mix pr_err() and printk();
2. Don't wrap strings;
3. Properly align goto statement in if() block;
4. Align wrapped arguments on new line;
5. Don't wrap functions on first argument;
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Mon, 27 Jun 2016 17:20:09 +0000 (10:20 -0700)]
crypto: tcrypt - Add new mode for sha512_mb
Add a new mode to calculate the speed of the sha512_mb algorithm
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Mon, 27 Jun 2016 17:20:08 +0000 (10:20 -0700)]
crypto: sha512-mb - Crypto computation (x4 AVX2)
This patch introduces the assembly routines to do SHA512 computation on
buffers belonging to several jobs at once. The assembly routines are
optimized with AVX2 instructions that have 4 data lanes and using AVX2
registers.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Mon, 27 Jun 2016 17:20:07 +0000 (10:20 -0700)]
crypto: sha512-mb - Algorithm data structures
This patch introduces the data structures and prototypes of functions
needed for computing SHA512 hash using multi-buffer. Included are the
structures of the multi-buffer SHA512 job, job scheduler in C and x86
assembly.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Mon, 27 Jun 2016 17:20:06 +0000 (10:20 -0700)]
crypto: sha512-mb - submit/flush routines for AVX2
This patch introduces the routines used to submit and flush buffers
belonging to SHA512 crypto jobs to the SHA512 multibuffer algorithm.
It is implemented mostly in assembly optimized with AVX2 instructions.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Mon, 27 Jun 2016 17:20:05 +0000 (10:20 -0700)]
crypto: sha512-mb - Enable SHA512 multibuffer support
Add the config CRYPTO_SHA512_MB which will enable the computation
using the SHA512 multi-buffer algorithm.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Mon, 27 Jun 2016 17:20:04 +0000 (10:20 -0700)]
crypto: sha512-mb - SHA512 multibuffer job manager and glue code
This patch introduces the multi-buffer job manager which is responsible
for submitting scatter-gather buffers from several SHA512 jobs to the
multi-buffer algorithm. It also contains the flush routine that's called
by the crypto daemon to complete the job when no new jobs arrive before
the deadline of maximum latency of a SHA512 crypto job.
The SHA512 multi-buffer crypto algorithm is defined and initialized in this
patch.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Arnd Bergmann [Mon, 27 Jun 2016 09:17:40 +0000 (11:17 +0200)]
crypto: ux500 - do not build with -O0
The ARM allmodconfig build currently warngs because of the
ux500 crypto driver not working well with the jump label
implementation that we started using for dynamic debug, which
breaks building with 'gcc -O0':
In file included from /git/arm-soc/include/linux/jump_label.h:105:0,
from /git/arm-soc/include/linux/dynamic_debug.h:5,
from /git/arm-soc/include/linux/printk.h:289,
from /git/arm-soc/include/linux/kernel.h:13,
from /git/arm-soc/include/linux/clk.h:16,
from /git/arm-soc/drivers/crypto/ux500/hash/hash_core.c:16:
/git/arm-soc/arch/arm/include/asm/jump_label.h: In function 'hash_set_dma_transfer':
/git/arm-soc/arch/arm/include/asm/jump_label.h:13:7: error: asm operand 0 probably doesn't match constraints [-Werror]
asm_volatile_goto("1:\n\t"
Turning off compiler optimizations has never really been supported
here, and it's only used when debugging the driver. I have not found
a good reason for doing this here, other than a misguided attempt
to produce more readable assembly output. Also, the driver is only
used in obsolete hardware that almost certainly nobody will spend
time debugging any more.
This just removes the -O0 flag from the compiler options.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Nishanth Menon [Fri, 24 Jun 2016 16:50:39 +0000 (11:50 -0500)]
hwrng: omap - Fix assumption that runtime_get_sync will always succeed
pm_runtime_get_sync does return a error value that must be checked for
error conditions, else, due to various reasons, the device maynot be
enabled and the system will crash due to lack of clock to the hardware
module.
Before:
12.562784] [
00000000] *pgd=
fe193835
12.562792] Internal error: : 1406 [#1] SMP ARM
[...]
12.562864] CPU: 1 PID: 241 Comm: modprobe Not tainted 4.7.0-rc4-next-
20160624 #2
12.562867] Hardware name: Generic DRA74X (Flattened Device Tree)
12.562872] task:
ed51f140 ti:
ed44c000 task.ti:
ed44c000
12.562886] PC is at omap4_rng_init+0x20/0x84 [omap_rng]
12.562899] LR is at set_current_rng+0xc0/0x154 [rng_core]
[...]
After the proper checks:
[ 94.366705] omap_rng
48090000.rng: _od_fail_runtime_resume: FIXME:
missing hwmod/omap_dev info
[ 94.375767] omap_rng
48090000.rng: Failed to runtime_get device -19
[ 94.382351] omap_rng
48090000.rng: initialization failed.
Fixes:
665d92fa85b5 ("hwrng: OMAP: convert to use runtime PM")
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tadeusz Struk [Fri, 24 Jun 2016 14:01:33 +0000 (07:01 -0700)]
MAINTAINERS: update maintainer for qat
Add Giovanni and Salvatore who will take over the qat maintenance.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Fri, 24 Jun 2016 01:40:48 +0000 (18:40 -0700)]
crypto: sha1-mb - rename sha-mb to sha1-mb
Until now, there was only support for the SHA1 multibuffer algorithm.
Hence, there was just one sha-mb folder. Now, with the introduction of
the SHA256 multi-buffer algorithm , it is logical to name the existing
folder as sha1-mb.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Fri, 24 Jun 2016 01:40:47 +0000 (18:40 -0700)]
crypto: tcrypt - Add speed tests for SHA multibuffer algorithms
The existing test suite to calculate the speed of the SHA algorithms
assumes serial (single buffer)) computation of data. With the SHA
multibuffer algorithms, we work on 8 lanes of data in parallel. Hence,
the need to introduce a new test suite to calculate the speed for these
algorithms.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Fri, 24 Jun 2016 01:40:46 +0000 (18:40 -0700)]
crypto: sha256-mb - Crypto computation (x8 AVX2)
This patch introduces the assembly routines to do SHA256 computation
on buffers belonging to several jobs at once. The assembly routines
are optimized with AVX2 instructions that have 8 data lanes and using
AVX2 registers.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Fri, 24 Jun 2016 01:40:45 +0000 (18:40 -0700)]
crypto: sha256-mb - Algorithm data structures
This patch introduces the data structures and prototypes of
functions needed for computing SHA256 hash using multi-buffer.
Included are the structures of the multi-buffer SHA256 job,
job scheduler in C and x86 assembly.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Fri, 24 Jun 2016 01:40:44 +0000 (18:40 -0700)]
crypto: sha256-mb - submit/flush routines for AVX2
This patch introduces the routines used to submit and flush buffers
belonging to SHA256 crypto jobs to the SHA256 multibuffer algorithm. It
is implemented mostly in assembly optimized with AVX2 instructions.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Fri, 24 Jun 2016 01:40:43 +0000 (18:40 -0700)]
crypto: sha256-mb - Enable multibuffer support
Add the config CRYPTO_SHA256_MB which will enable the computation using the
SHA256 multi-buffer algorithm.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Fri, 24 Jun 2016 01:40:42 +0000 (18:40 -0700)]
crypto: sha256-mb - SHA256 multibuffer job manager and glue code
This patch introduces the multi-buffer job manager which is responsible for
submitting scatter-gather buffers from several SHA256 jobs to the
multi-buffer algorithm. It also contains the flush routine to that's
called by the crypto daemon to complete the job when no new jobs arrive
before the deadline of maximum latency of a SHA256 crypto job.
The SHA256 multi-buffer crypto algorithm is defined and initialized in
this patch.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Florian Fainelli [Thu, 23 Jun 2016 00:27:01 +0000 (17:27 -0700)]
Documentation: devicetree: bindings: Add BCM5301x binding
Document the binding used by the Broadcom BCM5301x (Northstar) SoC
random number generator.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Stephen Rothwell [Fri, 24 Jun 2016 06:20:22 +0000 (16:20 +1000)]
crypto: ecdh - make ecdh_shared_secret unique
There is another ecdh_shared_secret in net/bluetooth/ecc.c
Fixes:
3c4b23901a0c ("crypto: ecdh - Add ECDH software support")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Florian Fainelli [Thu, 23 Jun 2016 00:27:02 +0000 (17:27 -0700)]
hwrng: bcm2835 - Add support for Broadcom BCM5301x
The Broadcom BCM5301x SoCs (Northstar) utilize the same random number
generator peripheral as Northstar Plus and BCM2835, but just like the
NSP SoC, we need to enable the interrupt.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Stephan Mueller [Wed, 22 Jun 2016 17:26:06 +0000 (19:26 +0200)]
crypto: jitterentropy - use ktime_get_ns as fallback
As part of the Y2038 development, __getnstimeofday is not supposed to be
used any more. It is now replaced with ktime_get_ns. The Jitter RNG uses
the time stamp to measure the execution time of a given code path and
tries to detect variations in the execution time. Therefore, the only
requirement the Jitter RNG has, is a sufficient high resolution to
detect these variations.
The change was tested on x86 to show an identical behavior as RDTSC. The
used test code simply measures the execution time of the heart of the
RNG:
jent_get_nstime(&time);
jent_memaccess(ec, min);
jent_fold_time(NULL, time, &folded, min);
jent_get_nstime(&time2);
return ((time2 - time));
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 22 Jun 2016 14:13:53 +0000 (22:13 +0800)]
KEYS: Use skcipher for big keys
This patch replaces use of the obsolete blkcipher with skcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: David Howells <dhowells@redhat.com>
Bin Liu [Wed, 22 Jun 2016 13:23:37 +0000 (16:23 +0300)]
crypto: omap-sham - set sw fallback to 240 bytes
Adds software fallback support for small crypto requests. In these cases,
it is undesirable to use DMA, as setting it up itself is rather heavy
operation. Gives about 40% extra performance in ipsec usecase.
Signed-off-by: Bin Liu <b-liu@ti.com>
[t-kristo@ti.com: dropped the extra traces, updated some comments
on the code]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Lokesh Vutla [Wed, 22 Jun 2016 13:23:36 +0000 (16:23 +0300)]
crypto: omap - do not call dmaengine_terminate_all
The extra call to dmaengine_terminate_all is not needed, as the DMA
is not running at this point. This improves performance slightly.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tero Kristo [Wed, 22 Jun 2016 13:23:35 +0000 (16:23 +0300)]
crypto: omap-sham - change queue size from 1 to 10
Change crypto queue size from 1 to 10 for omap SHA driver. This should
allow clients to enqueue requests more effectively to avoid serializing
whole crypto sequences, giving extra performance.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tero Kristo [Wed, 22 Jun 2016 13:23:34 +0000 (16:23 +0300)]
crypto: omap-sham - use runtime_pm autosuspend for clock handling
Calling runtime PM API for every block causes serious performance hit to
crypto operations that are done on a long buffer. As crypto is performed
on a page boundary, encrypting large buffers can cause a series of crypto
operations divided by page. The runtime PM API is also called those many
times.
Convert the driver to use runtime_pm autosuspend instead, with a default
timeout value of 1 second. This results in upto ~50% speedup.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Wed, 22 Jun 2016 16:49:15 +0000 (17:49 +0100)]
crypto: ecdh - Add ECDH software support
* Implement ECDH under kpp API
* Provide ECC software support for curve P-192 and
P-256.
* Add kpp test for ECDH with data generated by OpenSSL
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Wed, 22 Jun 2016 16:49:14 +0000 (17:49 +0100)]
crypto: dh - Add DH software implementation
* Implement MPI based Diffie-Hellman under kpp API
* Test provided uses data generad by OpenSSL
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Wed, 22 Jun 2016 16:49:13 +0000 (17:49 +0100)]
crypto: kpp - Key-agreement Protocol Primitives API (KPP)
Add key-agreement protocol primitives (kpp) API which allows to
implement primitives required by protocols such as DH and ECDH.
The API is composed mainly by the following functions
* set_secret() - It allows the user to set his secret, also
referred to as his private key, along with the parameters
known to both parties involved in the key-agreement session.
* generate_public_key() - It generates the public key to be sent to
the other counterpart involved in the key-agreement session. The
function has to be called after set_params() and set_secret()
* generate_secret() - It generates the shared secret for the session
Other functions such as init() and exit() are provided for allowing
cryptographic hardware to be inizialized properly before use
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Megha Dey [Wed, 22 Jun 2016 01:21:46 +0000 (18:21 -0700)]
crypto: sha1-mb - async implementation for sha1-mb
Herbert wants the sha1-mb algorithm to have an async implementation:
https://lkml.org/lkml/2016/4/5/286.
Currently, sha1-mb uses an async interface for the outer algorithm
and a sync interface for the inner algorithm. This patch introduces
a async interface for even the inner algorithm.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 21 Jun 2016 08:55:17 +0000 (16:55 +0800)]
crypto: ghash-ce - Fix cryptd reordering
This patch fixes an old bug where requests can be reordered because
some are processed by cryptd while others are processed directly
in softirq context.
The fix is to always postpone to cryptd if there are currently
requests outstanding from the same tfm.
This patch also removes the redundant use of cryptd in the async
init function as init never touches the FPU.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 21 Jun 2016 08:55:16 +0000 (16:55 +0800)]
crypto: ghash-clmulni - Fix cryptd reordering
This patch fixes an old bug where requests can be reordered because
some are processed by cryptd while others are processed directly
in softirq context.
The fix is to always postpone to cryptd if there are currently
requests outstanding from the same tfm.
This patch also removes the redundant use of cryptd in the async
init function as init never touches the FPU.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 21 Jun 2016 08:55:15 +0000 (16:55 +0800)]
crypto: ablk_helper - Fix cryptd reordering
This patch fixes an old bug where requests can be reordered because
some are processed by cryptd while others are processed directly
in softirq context.
The fix is to always postpone to cryptd if there are currently
requests outstanding from the same tfm.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 21 Jun 2016 08:55:14 +0000 (16:55 +0800)]
crypto: aesni - Fix cryptd reordering problem on gcm
This patch fixes an old bug where gcm requests can be reordered
because some are processed by cryptd while others are processed
directly in softirq context.
The fix is to always postpone to cryptd if there are currently
requests outstanding from the same tfm.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Tue, 21 Jun 2016 08:55:13 +0000 (16:55 +0800)]
crypto: cryptd - Add helpers to check whether a tfm is queued
This patch adds helpers to check whether a given tfm is currently
queued. This is meant to be used by ablk_helper and similar
entities to ensure that no reordering is introduced because of
requests queued in cryptd with respect to requests being processed
in softirq context.
The per-cpu queue length limit is also increased to 1000 in line
with network limits.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:40 +0000 (10:08 +0200)]
crypto: marvell - Increase the size of the crypto queue
Now that crypto requests are chained together at the DMA level, we
increase the size of the crypto queue for each engine. The result is
that as the backlog list is reached later, it does not stop the crypto
stack from sending asychronous requests, so more cryptographic tasks
are processed by the engines.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:39 +0000 (10:08 +0200)]
crypto: marvell - Add support for chaining crypto requests in TDMA mode
The Cryptographic Engines and Security Accelerators (CESA) supports the
Multi-Packet Chain Mode. With this mode enabled, multiple tdma requests
can be chained and processed by the hardware without software
intervention. This mode was already activated, however the crypto
requests were not chained together. By doing so, we reduce significantly
the number of IRQs. Instead of being interrupted at the end of each
crypto request, we are interrupted at the end of the last cryptographic
request processed by the engine.
This commits re-factorizes the code, changes the code architecture and
adds the required data structures to chain cryptographic requests
together before sending them to an engine (stopped or possibly already
running).
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:38 +0000 (10:08 +0200)]
crypto: marvell - Add load balancing between engines
This commits adds support for fine grained load balancing on
multi-engine IPs. The engine is pre-selected based on its current load
and on the weight of the crypto request that is about to be processed.
The global crypto queue is also moved to each engine. These changes are
required to allow chaining crypto requests at the DMA level. By using
a crypto queue per engine, we make sure that we keep the state of the
tdma chain synchronized with the crypto queue. We also reduce contention
on 'cesa_dev->lock' and improve parallelism.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:37 +0000 (10:08 +0200)]
crypto: marvell - Move SRAM I/O operations to step functions
Currently the crypto requests were sent to engines sequentially.
This commit moves the SRAM I/O operations from the prepare to the step
functions. It provides flexibility for future works and allow to prepare
a request while the engine is running.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:36 +0000 (10:08 +0200)]
crypto: marvell - Add a complete operation for async requests
So far, the 'process' operation was used to check if the current request
was correctly handled by the engine, if it was the case it copied
information from the SRAM to the main memory. Now, we split this
operation. We keep the 'process' operation, which still checks if the
request was correctly handled by the engine or not, then we add a new
operation for completion. The 'complete' method copies the content of
the SRAM to memory. This will soon become useful if we want to call
the process and the complete operations from different locations
depending on the type of the request (different cleanup logic).
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:35 +0000 (10:08 +0200)]
crypto: marvell - Move tdma chain out of mv_cesa_tdma_req and remove it
Currently, the only way to access the tdma chain is to use the 'req'
union from a mv_cesa_{ablkcipher,ahash}. This will soon become a problem
if we want to handle the TDMA chaining vs standard/non-DMA processing in
a generic way (with generic functions at the cesa.c level detecting
whether the request should be queued at the DMA level or not). Hence the
decision to move the chain field a the mv_cesa_req level at the expense
of adding 2 void * fields to all request contexts (including non-DMA
ones) and to remove the type completly. To limit the overhead, we get
rid of the type field, which can now be deduced from the req->chain.first
value. Once these changes are done the union is no longer needed, so
remove it and move mv_cesa_ablkcipher_std_req and mv_cesa_req
to mv_cesa_ablkcipher_req directly. There are also no needs to keep the
'base' field into the union of mv_cesa_ahash_req, so move it into the
upper structure.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:34 +0000 (10:08 +0200)]
crypto: marvell - Copy IV vectors by DMA transfers for acipher requests
Add a TDMA descriptor at the end of the request for copying the
output IV vector via a DMA transfer. This is a good way for offloading
as much as processing as possible to the DMA and the crypto engine.
This is also required for processing multiple cipher requests
in chained mode, otherwise the content of the IV vector would be
overwritten by the last processed request.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:33 +0000 (10:08 +0200)]
crypto: marvell - Fix wrong type check in dma functions
So far, the way that the type of a TDMA operation was checked was wrong.
We have to use the type mask in order to get the right part of the flag
containing the type of the operation.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Perier [Tue, 21 Jun 2016 08:08:32 +0000 (10:08 +0200)]
crypto: marvell - Check engine is not already running when enabling a req
Add a BUG_ON() call when the driver tries to launch a crypto request
while the engine is still processing the previous one. This replaces
a silent system hang by a verbose kernel panic with the associated
backtrace to let the user know that something went wrong in the CESA
driver.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>