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Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- The selftest overreads the IV test vector.
- Fix potential infinite loop in sunxi-ss driver.
- Fix powerpc build failure when VMX is set without VSX"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: testmgr - don't copy from source IV too much
crypto: sunxi-ss - Fix a possible driver hang with ciphers
crypto: vmx - VMX crypto should depend on CONFIG_VSX
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Instead of custom approach let's use recently introduced seq_hex_dump()
helper.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Tadeusz Struk <tadeusz.struk@intel.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Joe Perches <joe@perches.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The sun4i_ss_opti_poll function cipher data until the output miter have
a length of 0.
If the crypto API client, give more SGs than necessary this could result
in an infinite loop.
Fix it by checking for remaining bytes, just like sun4i_ss_cipher_poll().
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This code uses FP (floating point), Altivec and VSX (Vector-Scalar
Extension). It can just depend on CONFIG_VSX though, because that
already depends on FP and Altivec.
Otherwise we get lots of link errors such as:
drivers/built-in.o: In function `.p8_aes_setkey':
aes.c:(.text+0x2d325c): undefined reference to `.enable_kernel_altivec'
aes.c:(.text+0x2d326c): undefined reference to `.enable_kernel_vsx'
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Pull SG updates from Jens Axboe:
"This contains a set of scatter-gather related changes/fixes for 4.3:
- Add support for limited chaining of sg tables even for
architectures that do not set ARCH_HAS_SG_CHAIN. From Christoph.
- Add sg chain support to target_rd. From Christoph.
- Fixup open coded sg->page_link in crypto/omap-sham. From
Christoph.
- Fixup open coded crypto ->page_link manipulation. From Dan.
- Also from Dan, automated fixup of manual sg_unmark_end()
manipulations.
- Also from Dan, automated fixup of open coded sg_phys()
implementations.
- From Robert Jarzmik, addition of an sg table splitting helper that
drivers can use"
* 'for-4.3/sg' of git://git.kernel.dk/linux-block:
lib: scatterlist: add sg splitting function
scatterlist: use sg_phys()
crypto/omap-sham: remove an open coded access to ->page_link
scatterlist: remove open coded sg_unmark_end instances
crypto: replace scatterwalk_sg_chain with sg_chain
target/rd: always chain S/G list
scatterlist: allow limited chaining without ARCH_HAS_SG_CHAIN
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Pull crypto updates from Herbert Xu:
"Here is the crypto update for 4.3:
API:
- the AEAD interface transition is now complete.
- add top-level skcipher interface.
Drivers:
- x86-64 acceleration for chacha20/poly1305.
- add sunxi-ss Allwinner Security System crypto accelerator.
- add RSA algorithm to qat driver.
- add SRIOV support to qat driver.
- add LS1021A support to caam.
- add i.MX6 support to caam"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (163 commits)
crypto: algif_aead - fix for multiple operations on AF_ALG sockets
crypto: qat - enable legacy VFs
MPI: Fix mpi_read_buffer
crypto: qat - silence a static checker warning
crypto: vmx - Fixing opcode issue
crypto: caam - Use the preferred style for memory allocations
crypto: caam - Propagate the real error code in caam_probe
crypto: caam - Fix the error handling in caam_probe
crypto: caam - fix writing to JQCR_MS when using service interface
crypto: hash - Add AHASH_REQUEST_ON_STACK
crypto: testmgr - Use new skcipher interface
crypto: skcipher - Add top-level skcipher interface
crypto: cmac - allow usage in FIPS mode
crypto: sahara - Use dmam_alloc_coherent
crypto: caam - Add support for LS1021A
crypto: qat - Don't move data inside output buffer
crypto: vmx - Fixing GHASH Key issue on little endian
crypto: vmx - Fixing AES-CTR counter bug
crypto: null - Add missing Kconfig tristate for NULL2
crypto: nx - Add forward declaration for struct crypto_aead
...
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We need to support legacy VFs as well as VFs running on different OSes.
To do so the compatibility check need needs to be relaxed.
This patch moves the logic responsible for VF to PF version and
compatibility checking from adfsriov.c to adf_pf2vf_msg.c,
where it belongs, and changes the logic enable legacy VFs.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add range check for ring number.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In build time vadduqm opcode is not being mapped
correctly.
Adding a new map in ppc-xlate to do this.
Signed-off-by: Leonidas S Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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"The preferred form for passing a size of a struct is the following:
p = kmalloc(sizeof(*p), ...);
....
The preferred form for allocating a zeroed array is the following:
p = kcalloc(n, sizeof(...), ...); "
,so do as suggested.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Horia Geant? <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Instead of propagating a 'fake' error code, just propagate the real
one in the case of caam_drv_identify_clk() failure.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Horia Geant? <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In the error path we should disable the resources that were previously
acquired, so fix the error handling accordingly.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Horia Geant? <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Most significant part of JQCR (Job Queue Control Register) contains
bits that control endianness: ILE - Immediate Little Endian,
DWS - Double Word Swap.
The bits are automatically set by the Job Queue Controller HW.
Unfortunately these bits are cleared in SW when submitting descriptors
via the register-based service interface.
>From LS1021A:
JQCR_MS = 08080100 - before writing: ILE | DWS | SRC (JR0)
JQCR_MS = 30000100 - after writing: WHL | FOUR | SRC (JR0)
This would cause problems on little endian caam for descriptors
containing immediata data or double-word pointers.
Currently there is no problem since the only descriptors ran through
this interface are the ones that (un)instantiate RNG.
Signed-off-by: Horia Geant? <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch moves the data allocated using dma_alloc_coherent to the
corresponding managed interface. To be compatible with the change,
various gotos are replaced with direct returns and unneeded labels
are dropped.
Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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LS1021A is a QorIQ SoC having little endian CAAM.
There are a few differences b/w QorIQ and i.MX from CAAM perspective:
1. i.MX platforms are somewhat special wrt. 64-bit registers:
-big endian format at 64-bit level: MSW at address+0 and LSW at address+4
-little endian format at 32-bit level (within MSW and LSW)
and thus need special handling.
2. No CCM (clock controller module) for QorIQ.
No CAAM clocks to enable / disable.
A new Kconfig option - CRYPTO_DEV_FSL_CAAM_LE - is added to indicate
CAAM is little endian (*). It is hidden from the user (to avoid
misconfiguration); when adding support for a new platform with LE CAAM,
either the Kconfig needs to be updated or the corresponding defconfig
needs to indicate that CAAM is LE.
(*) Using a DT property to provide CAAM endianness would not allow
for the ifdeffery.
In order to keep changes to a minimum, the following changes
are postponed:
-endianness fix of the last word in the S/G (rsvd2, bpid, offset),
fields are always 0 anyway;
-S/G format fix for i.MX7 (yes, i.MX7 support was not added yet,
but still...)
Signed-off-by: Horia Geant? <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Change memcpy to memmove because the copy is done within the same buffer.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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GHASH table algorithm is using a big endian key.
In little endian machines key will be LE ordered.
After a lxvd2x instruction key is loaded as it is,
LE/BE order, in first case it'll generate a wrong
table resulting in wrong hashes from the algorithm.
Bug affects only LE machines.
In order to fix it we do a swap for loaded key.
Cc: stable@vger.kernel.org
Signed-off-by: Leonidas S Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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AES-CTR is using a counter 8bytes-8bytes what miss match with
kernel specs.
In the previous code a vadduwm was done to increment counter.
Replacing this for a vadduqm now considering both cases counter
8-8 bytes and full 16bytes.
Cc: stable@vger.kernel.org
Signed-off-by: Leonidas S Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Dan Williams <dan.j.williams@intel.com>
[hch: split from a larger patch by Dan]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Signed-off-by: Dan Williams <dan.j.williams@intel.com>
[hch: split from a larger patch by Dan]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The file nx.h has function prototypes that use struct crypto_aead.
However, as crypto/aead.h is not included we don't have a definition
for it. This patch adds a forward declaration to fix this.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Compare pointer-typed values to NULL rather than 0.
The semantic patch that makes this change is available
in scripts/coccinelle/null/badzero.cocci
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch removes the CRYPTO_ALG_AEAD_NEW flag now that everyone
has been converted.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The qat driver uses crypto_aead_crt in order to get the authsize.
This patch replaces it with the crypto_aead_authsize helper instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Variable 'ret' is only used for returning the value 0.
We can make it simpler and just return 0 instead.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/returnvar.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In the error paths we should free the resources that were
previously acquired, so fix it accordingly.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Horia Geant? <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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drivers/crypto/qat/qat_common/adf_sriov.c:258:1-4: WARNING: end returns can be simpified and declaration on line 212 can be dropped
Simplify a trivial if-return sequence. Possibly combine with a
preceding function call.
Generated by: scripts/coccinelle/misc/simple_return.cocci
CC: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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On sun6i and later platforms, the reset control is split out of the
clock gates. Add support for an optional reset control.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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When doing pointer operation for accessing the HW S/G table,
a value representing number of entries (and not number of bytes)
must be used.
Cc: <stable@vger.kernel.org> # 3.6+
Fixes: 045e36780f115 ("crypto: caam - ahash hmac support")
Signed-off-by: Horia Geant? <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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When both PF and VF drivers are build in linker complains about multiple
definition of adf_isr_resource_[alloc/free] functions.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Commit 000851119e80 changed sha256/512 update functions to
pass more data to nx_build_sg_list(), which ends with
sg list overflows and usually with update functions failing
for data larger than max_sg_len * NX_PAGE_SIZE.
This happens because:
- both "total" and "to_process" are updated, which leads to
"to_process" getting overflowed for some data lengths
For example:
In first iteration "total" is 50, and let's assume "to_process"
is 30 due to sg limits. At the end of first iteration "total" is
set to 20. At start of 2nd iteration "to_process" overflows on:
to_process = total - to_process;
- "in_sg" is not reset to nx_ctx->in_sg after each iteration
- nx_build_sg_list() is hitting overflow because the amount of data
passed to it would require more than sgmax elements
- as consequence of previous item, data stored in overflowed sg list
may no longer be aligned to SHA*_BLOCK_SIZE
This patch changes sha256/512 update functions so that "to_process"
respects sg limits and never tries to pass more data to
nx_build_sg_list() to avoid overflows. "to_process" is calculated
as minimum of "total" and sg limits at start of every iteration.
Fixes: 000851119e80 ("crypto: nx - Fix SHA concurrence issue and sg
limit bounds")
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Cc: stable@vger.kernel.org
Cc: Leonidas Da Silva Barbosa <leosilva@linux.vnet.ibm.com>
Cc: Marcelo Henrique Cerri <mhcerri@linux.vnet.ibm.com>
Cc: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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CTR hardware implementation does not match with kernel spec causing a counter bug
where just low 8 bytes are used for counter, when should be all 16bytes.
Since we already have other counter modes working according with specs
not worth to keep CTR itself on NX.
Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Some VF drivers need FW const table, so the PF driver needs to load it.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add code specific for the dh895xcc virtual function.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add code that enables SRIOV on dh895xcc devices.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Adf admin and HW arbiter function can be used by dh895xcc specific code
well as the new dh895xccvf and future devices so moving them to
qat_common so that they can be shared.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The probe error path for this driver, for all intents and purposes,
is the talitos_remove() function due to the common "goto err_out".
Without this patch applied, talitos_remove() will panic under these
two conditions:
1. If the RNG device hasn't been registered via
talitos_register_rng() prior to entry into talitos_remove(),
then the attempt to unregister the RNG "device" will cause a panic.
2. If the priv->chan array has not been allocated prior to entry
into talitos_remove(), then the per-channel FIFO cleanup will panic
because of the dereference of that NULL "array".
Both of the above scenarios occur if talitos_probe_irq() fails.
This patch resolves issue #1 by introducing a boolean to mask the
hwrng_unregister() call in talitos_unregister_rng() if RNG device
registration was unsuccessful.
It resolves issue #2 by checking that priv->chan is not NULL in the
per-channel FIFO cleanup for loop.
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Register only algorithms supported by CAAM hardware, using the CHA
version and instantiation registers to identify hardware capabilities.
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Allow CAAM to be selected in the kernel for Freescale i.MX devices if
ARCH_MXC is enabled.
Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Avoid moving the head of the scatterlist entry by using temporary
pointers to walk the scatterlist.
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This change fixes:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 456 at lib/dma-debug.c:1103 check_unmap+0x438/0x958()
caam_jr 2101000.jr0: DMA-API: device driver frees DMA memory with different size [device address=0x000000003a241080] [map ]
Modules linked in: tcrypt(+)
CPU: 0 PID: 456 Comm: insmod Not tainted 4.1.0-248766-gf823586-dirty #82
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[<80015e0c>] (unwind_backtrace) from [<80012764>] (show_stack+0x10/0x14)
[<80012764>] (show_stack) from [<806df8e8>] (dump_stack+0x84/0xc4)
[<806df8e8>] (dump_stack) from [<800266fc>] (warn_slowpath_common+0x84/0xb4)
[<800266fc>] (warn_slowpath_common) from [<8002675c>] (warn_slowpath_fmt+0x30/0x40)
[<8002675c>] (warn_slowpath_fmt) from [<802c7db8>] (check_unmap+0x438/0x958)
[<802c7db8>] (check_unmap) from [<802c835c>] (debug_dma_unmap_page+0x84/0x8c)
[<802c835c>] (debug_dma_unmap_page) from [<804d3b94>] (ahash_update_ctx+0xb08/0xec4)
[<804d3b94>] (ahash_update_ctx) from [<7f002984>] (test_ahash_pnum.isra.9.constprop.19+0x2b8/0x514 [tcrypt])
[<7f002984>] (test_ahash_pnum.isra.9.constprop.19 [tcrypt]) from [<7f005998>] (do_test+0x2db8/0x37cc [tcrypt])
[<7f005998>] (do_test [tcrypt]) from [<7f00b050>] (tcrypt_mod_init+0x50/0x9c [tcrypt])
[<7f00b050>] (tcrypt_mod_init [tcrypt]) from [<80009730>] (do_one_initcall+0x8c/0x1d4)
[<80009730>] (do_one_initcall) from [<806dda4c>] (do_init_module+0x5c/0x1a8)
[<806dda4c>] (do_init_module) from [<80085308>] (load_module+0x17e0/0x1da0)
[<80085308>] (load_module) from [<80085998>] (SyS_init_module+0xd0/0x120)
[<80085998>] (SyS_init_module) from [<8000f4c0>] (ret_fast_syscall+0x0/0x3c)
---[ end trace 60807cfb6521c79f ]---
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Since fields must be ORed in to operate correctly using any order of
operations, changed allocations of the combination of extended
descriptor structs + hardware scatterlists to use kzalloc() instead
of kmalloc(), so as to ensure that residue data would not be ORed in
with the correct data.
Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Modify the Scatter-Gather entry definitions for the Freescale
CAAM driver to include support for both 64- and 32-bit DMA pointers.
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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ARM-based systems may disable clocking to the CAAM device on the
Freescale i.MX platform for power management purposes. This patch
enables the required clocks when the CAAM module is initialized and
disables the required clocks when the CAAM module is shut down.
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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compatibility
Add set/clear 32-bit primitives for compatibility with ARM devices since
the primitives were previously only defined for the Power architecture.
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Freescale i.MX6 ARM platforms do not support hardware cache coherency.
This patch adds cache coherency support to the CAAM driver.
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch converts talitos to the new AEAD interface. IV generation
has been removed since it's equivalent to a software implementation.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch converts qat to the new AEAD interface. IV generation
has been removed since it's equivalent to a software implementation.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Tadeusz Struk <tadeusz.struk@intel.com>
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This patch converts picoxcell to the new AEAD interface. IV
generation has been removed since it's equivalent to a software
implementation.
As picoxcell cannot handle SG lists longer than 16 elements,
this patch has made the software fallback mandatory. If an SG
list comes in that exceeds the limit, we will simply use the
fallback.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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