- 05 Apr, 2017 8 commits
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Fabien DESSENNE authored
Enable the CRC (CRC32 crypto) on stm32746g-eval board Signed-off-by:
Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au>
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Fabien DESSENNE authored
Add CRC (CRC32 crypto) support to stm32f746. Signed-off-by:
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Fabien DESSENNE authored
This module registers a CRC32 ("Ethernet") and a CRC32C (Castagnoli) algorithm that make use of the STMicroelectronics STM32 crypto hardware. Theses algorithms are compatible with the little-endian generic ones. Both algorithms use ~0 as default seed (key). With CRC32C the output is xored with ~0. Using TCRYPT CRC32C speed test, this shows up to 900% speedup compared to the crc32c-generic algorithm. Signed-off-by: -
Fabien DESSENNE authored
Document device tree bindings for the STM32 CRC (crypto CRC32) Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Herbert Xu authored
Merge the crypto tree to resolve conflict between caam changes.
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Horia Geantă authored
RNG instantiation was previously fixed by commit 62743a41 ("crypto: caam - fix RNG init descriptor ret. code checking") while deinstantiation was not addressed. Since the descriptors used are similar, in the sense that they both end with a JUMP HALT command, checking for errors should be similar too, i.e. status code 7000_0000h should be considered successful. Cc: <stable@vger.kernel.org> # 3.13+ Fixes: 1005bccd ("crypto: caam - enable instantiation of all RNG4 state handles") Signed-off-by:
Horia Geantă <horia.geanta@nxp.com> Signed-off-by:
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Horia Geantă authored
In case caam_jr_alloc() fails, ctx->dev carries the error code, thus accessing it with dev_err() is incorrect. Cc: <stable@vger.kernel.org> # 4.8+ Fixes: 8c419778 ("crypto: caam - add support for RSA algorithm") Signed-off-by:
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Horia Geantă authored
The way Job Ring platform devices are created and released does not allow for multiple create-release cycles. JR0 Platform device creation error JR0 Platform device creation error caam 2100000.caam: no queues configured, terminating caam: probe of 2100000.caam failed with error -12 The reason is that platform devices are created for each job ring: for_each_available_child_of_node(nprop, np) if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") || of_device_is_compatible(np, "fsl,sec4.0-job-ring")) { ctrlpriv->jrpdev[ring] = of_platform_device_create(np, NULL, dev); which sets OF_POPULATED on the device node, but then it cleans these up: /* Remove platform devices for JobRs */ for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) { if (ctrlpriv->jrpdev[ring]) of_device_unregister(ctrlpriv->jrpdev[ring]); } which leaves OF_POPULATED set. Use of_platform_populate / of_platform_depopulate instead. This allows for a bit of driver clean-up, jrpdev is no longer needed. Logic changes a bit too: -exit in case of_platform_populate fails, since currently even QI backend depends on JR; true, we no longer support the case when "some" of the JR DT nodes are incorrect -when cleaning up, caam_remove() would also depopulate RTIC in case it would have been populated somewhere else - not the case for now Cc: <stable@vger.kernel.org> Fixes: 313ea293 ("crypto: caam - Add Platform driver for Job Ring") Reported-by:Russell King <rmk+kernel@armlinux.org.uk> Suggested-by:
Rob Herring <robh+dt@kernel.org> Signed-off-by:
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- 24 Mar, 2017 29 commits
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Geliang Tang authored
Use sg_virt() instead of open-coding it. Signed-off-by:
Geliang Tang <geliangtang@gmail.com> Acked-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Stephan Mueller authored
An SGL to be initialized only once even when its buffers are written to several times. Signed-off-by:
Stephan Mueller <smueller@chronox.de> Signed-off-by:
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Marcelo Cerri authored
3DES is missing the fips_allowed flag for CTR mode. Signed-off-by:
Marcelo Henrique Cerri <marcelo.cerri@canonical.com> Acked-by:
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Arnd Bergmann authored
kernelci.org reports a build-time regression on linux-next, with a harmless warning in x86 allmodconfig: drivers/crypto/cavium/zip/zip_main.c:489:18: warning: format '%ld' expects argument of type 'long int', but argument 7 has type 'long long int' [-Wformat=] drivers/crypto/cavium/zip/zip_main.c:489:18: warning: format '%ld' expects argument of type 'long int', but argument 6 has type 'long long int' [-Wformat=] drivers/crypto/cavium/zip/zip_main.c:489:18: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'long long int' [-Wformat=] The return type for atomic64_read() unfortunately differs between architectures, with some defining it as atomic_long_read() and others returning a 64-bit type explicitly. Fixing this in general would be nice, but also require changing other users of these functions, so the simpler workaround is to add a cast here that avoids the warnings on the default build. Fixes: 09ae5d37 ("crypto: zip - Add Compression/Decompression statistics") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Dan Carpenter authored
There is a typo here. It should be "stats" instead of "state". The impact is that we clear 224 bytes instead of 80 and we zero out memory that we shouldn't. Fixes: 09ae5d37 ("crypto: zip - Add Compression/Decompression statistics") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Krzysztof Kozlowski authored
Add kernel-doc to s5p_aes_dev structure. Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by:
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Krzysztof Kozlowski authored
The driver uses type of device (variant) only during probe so there is no need to store it for later. Signed-off-by:
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Krzysztof Kozlowski authored
Driver is capable of handling only one request at a time and it stores it in its state container struct s5p_aes_dev. This stored request must be protected between concurrent invocations (e.g. completing current request and scheduling new one). Combination of lock and "busy" field is used for that purpose. When "busy" field is true, the driver will not accept new request thus it will not overwrite currently handled data. However commit 28b62b14 ("crypto: s5p-sss - Fix spinlock recursion on LRW(AES)") moved some of the write to "busy" field out of a lock protected critical section. This might lead to potential race between completing current request and scheduling a new one. Effectively the request completion might try to operate on new crypto request. Cc: <stable@vger.kernel.org> # v4.10.x Fixes: 28b62b14 ("crypto: s5p-sss - Fix spinlock recursion on LRW(AES)") Signed-off-by:
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Horia Geantă authored
Add support to submit ablkcipher and authenc algorithms via the QI backend: -ablkcipher: cbc({aes,des,des3_ede}) ctr(aes), rfc3686(ctr(aes)) xts(aes) -authenc: authenc(hmac(md5),cbc({aes,des,des3_ede})) authenc(hmac(sha*),cbc({aes,des,des3_ede})) caam/qi being a new driver, let's wait some time to settle down without interfering with existing caam/jr driver. Accordingly, for now all caam/qi algorithms (caamalg_qi module) are marked to be of lower priority than caam/jr ones (caamalg module). Signed-off-by:Vakul Garg <vakul.garg@nxp.com> Signed-off-by:
Alex Porosanu <alexandru.porosanu@nxp.com> Signed-off-by:
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Horia Geantă authored
CAAM engine supports two interfaces for crypto job submission: -job ring interface - already existing caam/jr driver -Queue Interface (QI) - caam/qi driver added in current patch QI is present in CAAM engines found on DPAA platforms. QI gets its I/O (frame descriptors) from QMan (Queue Manager) queues. This patch adds a platform device for accessing CAAM's queue interface. The requests are submitted to CAAM using one frame queue per cryptographic context. Each crypto context has one shared descriptor. This shared descriptor is attached to frame queue associated with corresponding driver context using context_a. The driver hides the mechanics of FQ creation, initialisation from its applications. Each cryptographic context needs to be associated with driver context which houses the FQ to be used to transport the job to CAAM. The driver provides API for: (a) Context creation (b) Job submission (c) Context deletion (d) Congestion indication - whether path to/from CAAM is congested The driver supports affining its context to a particular CPU. This means that any responses from CAAM for the context in question would arrive at the given CPU. This helps in implementing one CPU per packet round trip in IPsec application. The driver processes CAAM responses under NAPI contexts. NAPI contexts are instantiated only on cores with affined portals since only cores having their own portal can receive responses from DQRR. The responses from CAAM for all cryptographic contexts ride on a fixed set of FQs. We use one response FQ per portal owning core. The response FQ is configured in each core's and thus portal's dedicated channel. This gives the flexibility to direct CAAM's responses for a crypto context on a given core. Signed-off-by:
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Horia Geantă authored
Signed-off-by:
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Horia Geantă authored
A few other things need to be added in soc/qman, such that caam/qi won't open-code them. Signed-off-by:
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Horia Geantă authored
Export qman_query_fq_np() function and related structures. This will be needed in the caam/qi driver, where "queue empty" condition will be decided based on the frm_cnt. Signed-off-by:
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Horia Geantă authored
Add and export the ID of the channel serviced by the CAAM (Cryptographic Acceleration and Assurance Module) DCP. Signed-off-by:
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Horia Geantă authored
Since qman_volatile_dequeue() is already exported, move the related structures into the public header too. Signed-off-by:
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Jason A. Donenfeld authored
The md5_transform function is no longer used any where in the tree, except for the crypto api's actual implementation of md5, so we can drop the function from lib and put it as a static function of the crypto file, where it belongs. There should be no new users of md5_transform, anyway, since there are more modern ways of doing what it once achieved. Signed-off-by:
Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by:
Eric Biggers <ebiggers@google.com> Signed-off-by:
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Michael Davidson authored
aes_ctrby8_avx-x86_64.S uses the C preprocessor for token pasting of character sequences that are not valid preprocessor tokens. While this is allowed when preprocessing assembler files it exposes an incompatibilty between the clang and gcc preprocessors where clang does not strip leading white space from macro parameters, leading to the CONCAT(%xmm, i) macro expansion on line 96 resulting in a token with a space character embedded in it. While this could be resolved by deleting the offending space character, the assembler is perfectly capable of doing the token pasting correctly for itself so we can just get rid of the preprocessor macros. Signed-off-by:
Michael Davidson <md@google.com> Signed-off-by:
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Gary R Hook authored
A version 5 device provides the primitive commands required for AES GCM. This patch adds support for en/decryption. Signed-off-by:
Gary R Hook <gary.hook@amd.com> Signed-off-by:
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Gary R Hook authored
Wire up support for Triple DES in ECB mode. Signed-off-by:
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Gary R Hook authored
Incorporate 384-bit and 512-bit hashing for a version 5 CCP device Signed-off-by:
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Daniel Axtens authored
vpmsum implementations often don't kick in for short test vectors. This is a simple test module that does a configurable number of random tests, each up to 64kB and each with random offsets. Both CRC-T10DIF and CRC32C are tested. Cc: Anton Blanchard <anton@samba.org> Signed-off-by:
Daniel Axtens <dja@axtens.net> Signed-off-by:
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Daniel Axtens authored
T10DIF is a CRC16 used heavily in NVMe. It turns out we can accelerate it with a CRC32 library and a few little tricks. Provide the accelerator based the refactored CRC32 code. Cc: Anton Blanchard <anton@samba.org> Thanks-to: Hong Bo Peng <penghb@cn.ibm.com> Signed-off-by:
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Daniel Axtens authored
When CRC32c was included in the kernel, Anton ripped out the #ifdefs around reflected polynomials, because CRC32c is always reflected. However, not all CRCs use reflection so we'd like to make it optional. Restore the REFLECT parts from Anton's original CRC32 implementation (https://github.com/antonblanchard/crc32-vpmsum) That implementation is available under GPLv2+, so we're OK from a licensing point of view: https://github.com/antonblanchard/crc32-vpmsum/blob/master/LICENSE.TXT As CRC32c requires REFLECT, add that #define. Cc: Anton Blanchard <anton@samba.org> Signed-off-by:
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Daniel Axtens authored
The core nuts and bolts of the crc32c vpmsum algorithm will also work for a number of other CRC algorithms with different polynomials. Factor out the function into a new asm file. To handle multiple users of the function, a user simply provides constants, defines the name of their CRC function, and then #includes the core algorithm file. Cc: Anton Blanchard <anton@samba.org> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linuxHerbert Xu authored
Merging 4.11-rc3 to pick up md5 removal from /dev/random.
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Eric Biggers authored
In the generic XTS and LRW algorithms, for input data > 128 bytes, a temporary buffer is allocated to hold the values to be XOR'ed with the data before and after encryption or decryption. If the allocation fails, the fixed-size buffer embedded in the request buffer is meant to be used as a fallback --- resulting in more calls to the ECB algorithm, but still producing the correct result. However, we weren't correctly limiting subreq->cryptlen in this case, resulting in pre_crypt() overrunning the embedded buffer. Fix this by setting subreq->cryptlen correctly. Fixes: f1c131b4 ("crypto: xts - Convert to skcipher") Fixes: 700cb3f5 ("crypto: lrw - Convert to skcipher") Cc: stable@vger.kernel.org # v4.10+ Reported-by:
Dmitry Vyukov <dvyukov@google.com> Signed-off-by:
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Gary R Hook authored
The CCP registers its queues as channels capable of handling general DMA operations. The NTB driver will use DMA if directed, but as public channels can be reserved for use in asynchronous operations some channels should be held back as private. Since the public/private determination is handled at a device level, reserve the "other" (secondary) CCP channels as private. Add a module parameter that allows for override, to be applied to all channels on all devices. CC: <stable@vger.kernel.org> # 4.10.x- Signed-off-by:
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Jason A. Donenfeld authored
Under extremely heavy uses of padata, crashes occur, and with list debugging turned on, this happens instead: [87487.298728] WARNING: CPU: 1 PID: 882 at lib/list_debug.c:33 __list_add+0xae/0x130 [87487.301868] list_add corruption. prev->next should be next (ffffb17abfc043d0), but was ffff8dba70872c80. (prev=ffff8dba70872b00). [87487.339011] [<ffffffff9a53d075>] dump_stack+0x68/0xa3 [87487.342198] [<ffffffff99e119a1>] ? console_unlock+0x281/0x6d0 [87487.345364] [<ffffffff99d6b91f>] __warn+0xff/0x140 [87487.348513] [<ffffffff99d6b9aa>] warn_slowpath_fmt+0x4a/0x50 [87487.351659] [<ffffffff9a58b5de>] __list_add+0xae/0x130 [87487.354772] [<ffffffff9add5094>] ? _raw_spin_lock+0x64/0x70 [87487.357915] [<ffffffff99eefd66>] padata_reorder+0x1e6/0x420 [87487.361084] [<ffffffff99ef0055>] padata_do_serial+0xa5/0x120 padata_reorder calls list_add_tail with the list to which its adding locked, which seems correct: spin_lock(&squeue->serial.lock); list_add_tail(&padata->list, &squeue->serial.list); spin_unlock(&squeue->serial.lock); This therefore leaves only place where such inconsistency could occur: if padata->list is added at the same time on two different threads. This pdata pointer comes from the function call to padata_get_next(pd), which has in it the following block: next_queue = per_cpu_ptr(pd->pqueue, cpu); padata = NULL; reorder = &next_queue->reorder; if (!list_empty(&reorder->list)) { padata = list_entry(reorder->list.next, struct padata_priv, list); spin_lock(&reorder->lock); list_del_init(&padata->list); atomic_dec(&pd->reorder_objects); spin_unlock(&reorder->lock); pd->processed++; goto out; } out: return padata; I strongly suspect that the problem here is that two threads can race on reorder list. Even though the deletion is locked, call to list_entry is not locked, which means it's feasible that two threads pick up the same padata object and subsequently call list_add_tail on them at the same time. The fix is thus be hoist that lock outside of that block. Signed-off-by:Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by:
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Thomas Petazzoni authored
Commit 52060836 ("dt-bindings: omap-rng: Document SafeXcel IP-76 device variant") update the omap_rng Device Tree binding to add support for the IP-76 variation of the IP. As part of this change, a "clocks" property was added, but is indicated as "Required", without indicated it's actually only required for some compatible strings. This commit fixes that, by explicitly stating that the clocks property is only required with the inside-secure,safexcel-eip76 compatible string. Fixes: 52060836 ("dt-bindings: omap-rng: Document SafeXcel IP-76 device variant") Cc: <stable@vger.kernel.org> Signed-off-by:
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by:
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- 20 Mar, 2017 3 commits
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Linus Torvalds authored
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Linus Torvalds authored
This BUG_ON() triggered for me once at shutdown, and I don't see a reason for the check. The code correctly checks whether the swap slot cache is usable or not, so an uninitialized swap slot cache is not actually problematic afaik. I've temporarily just switched the BUG_ON() to a WARN_ON_ONCE(), since I'm not sure why that seemingly pointless check was there. I suspect the real fix is to just remove it entirely, but for now we'll warn about it but not bring the machine down. Cc: "Huang, Ying" <ying.huang@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull more powerpc fixes from Michael Ellerman: "A couple of minor powerpc fixes for 4.11: - wire up statx() syscall - don't print a warning on memory hotplug when HPT resizing isn't available Thanks to: David Gibson, Chandan Rajendra" * tag 'powerpc-4.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/pseries: Don't give a warning when HPT resizing isn't available powerpc: Wire up statx() syscall
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