Commit Graph

1777 Commits

Author SHA1 Message Date
Linus Torvalds 2d706e790f Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes a hash corruption bug in the marvell driver"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: marvell - Copy IVDIG before launching partial DMA ahash requests
2016-12-27 17:51:36 -08:00
Romain Perier 8759fec4af crypto: marvell - Copy IVDIG before launching partial DMA ahash requests
Currently, inner IV/DIGEST data are only copied once into the hash
engines and not set explicitly before launching a request that is not a
first frag. This is an issue especially when multiple ahash reqs are
computed in parallel or chained with cipher request, as the state of the
request being computed is not updated into the hash engine. It leads to
non-deterministic corrupted digest results.

Fixes: commit 2786cee8e5 ("crypto: marvell - Move SRAM I/O operations to step functions")
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-16 19:59:39 +08:00
Gonglei dbaf0624ff crypto: add virtio-crypto driver
This patch introduces virtio-crypto driver for Linux Kernel.

The virtio crypto device is a virtual cryptography device
as well as a kind of virtual hardware accelerator for
virtual machines. The encryption anddecryption requests
are placed in the data queue and are ultimately handled by
thebackend crypto accelerators. The second queue is the
control queue used to create or destroy sessions for
symmetric algorithms and will control some advanced features
in the future. The virtio crypto device provides the following
cryptoservices: CIPHER, MAC, HASH, and AEAD.

For more information about virtio-crypto device, please see:
  http://qemu-project.org/Features/VirtioCrypto

CC: Michael S. Tsirkin <mst@redhat.com>
CC: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: Halil Pasic <pasic@linux.vnet.ibm.com>
CC: David S. Miller <davem@davemloft.net>
CC: Zeng Xin <xin.zeng@intel.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-12-16 00:13:32 +02:00
Linus Torvalds 0f1d6dfe03 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 4.10:

  API:
   - add skcipher walk interface
   - add asynchronous compression (acomp) interface
   - fix algif_aed AIO handling of zero buffer

  Algorithms:
   - fix unaligned access in poly1305
   - fix DRBG output to large buffers

  Drivers:
   - add support for iMX6UL to caam
   - fix givenc descriptors (used by IPsec) in caam
   - accelerated SHA256/SHA512 for ARM64 from OpenSSL
   - add SSE CRCT10DIF and CRC32 to ARM/ARM64
   - add AEAD support to Chelsio chcr
   - add Armada 8K support to omap-rng"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (148 commits)
  crypto: testmgr - fix overlap in chunked tests again
  crypto: arm/crc32 - accelerated support based on x86 SSE implementation
  crypto: arm64/crc32 - accelerated support based on x86 SSE implementation
  crypto: arm/crct10dif - port x86 SSE implementation to ARM
  crypto: arm64/crct10dif - port x86 SSE implementation to arm64
  crypto: testmgr - add/enhance test cases for CRC-T10DIF
  crypto: testmgr - avoid overlap in chunked tests
  crypto: chcr - checking for IS_ERR() instead of NULL
  crypto: caam - check caam_emi_slow instead of re-lookup platform
  crypto: algif_aead - fix AIO handling of zero buffer
  crypto: aes-ce - Make aes_simd_algs static
  crypto: algif_skcipher - set error code when kcalloc fails
  crypto: caam - make aamalg_desc a proper module
  crypto: caam - pass key buffers with typesafe pointers
  crypto: arm64/aes-ce-ccm - Fix AEAD decryption length
  MAINTAINERS: add crypto headers to crypto entry
  crypt: doc - remove misleading mention of async API
  crypto: doc - fix header file name
  crypto: api - fix comment typo
  crypto: skcipher - Add separate walker for AEAD decryption
  ..
2016-12-14 13:31:29 -08:00
Linus Torvalds 518bacf5a5 Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 FPU updates from Ingo Molnar:
 "The main changes in this cycle were:

   - do a large round of simplifications after all CPUs do 'eager' FPU
     context switching in v4.9: remove CR0 twiddling, remove leftover
     eager/lazy bts, etc (Andy Lutomirski)

   - more FPU code simplifications: remove struct fpu::counter, clarify
     nomenclature, remove unnecessary arguments/functions and better
     structure the code (Rik van Riel)"

* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Remove clts()
  x86/fpu: Remove stts()
  x86/fpu: Handle #NM without FPU emulation as an error
  x86/fpu, lguest: Remove CR0.TS support
  x86/fpu, kvm: Remove host CR0.TS manipulation
  x86/fpu: Remove irq_ts_save() and irq_ts_restore()
  x86/fpu: Stop saving and restoring CR0.TS in fpu__init_check_bugs()
  x86/fpu: Get rid of two redundant clts() calls
  x86/fpu: Finish excising 'eagerfpu'
  x86/fpu: Split old_fpu & new_fpu handling into separate functions
  x86/fpu: Remove 'cpu' argument from __cpu_invalidate_fpregs_state()
  x86/fpu: Split old & new FPU code paths
  x86/fpu: Remove __fpregs_(de)activate()
  x86/fpu: Rename lazy restore functions to "register state valid"
  x86/fpu, kvm: Remove KVM vcpu->fpu_counter
  x86/fpu: Remove struct fpu::counter
  x86/fpu: Remove use_eager_fpu()
  x86/fpu: Remove the XFEATURE_MASK_EAGER/LAZY distinction
  x86/fpu: Hard-disable lazy FPU mode
  x86/crypto, x86/fpu: Remove X86_FEATURE_EAGER_FPU #ifdef from the crc32c code
2016-12-12 14:27:49 -08:00
David S. Miller 821781a9f4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
Dan Carpenter 9a97ffd49c crypto: chcr - checking for IS_ERR() instead of NULL
The create_hash_wr() function never returns error pointers.  It returns
NULL on error.

Fixes: 358961d1cd ("crypto: chcr - Added new structure chcr_wr")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-07 20:01:11 +08:00
Marcus Folkesson b80609a161 crypto: caam - check caam_emi_slow instead of re-lookup platform
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-07 20:01:08 +08:00
Horia Geantă 39eaf75946 crypto: caam - fix pointer size for AArch64 boot loader, AArch32 kernel
Start with a clean slate before dealing with bit 16 (pointer size)
of Master Configuration Register.
This fixes the case of AArch64 boot loader + AArch32 kernel, when
the boot loader might set MCFGR[PS] and kernel would fail to clear it.

Cc: <stable@vger.kernel.org>
Reported-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Reviewed-By: Alison Wang <Alison.wang@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-07 19:55:17 +08:00
Romain Perier 9e5f7a149e crypto: marvell - Don't corrupt state of an STD req for re-stepped ahash
mv_cesa_hash_std_step() copies the creq->state into the SRAM at each
step, but this is only required on the first one. By doing that, we
overwrite the engine state, and get erroneous results when the crypto
request is split in several chunks to fit in the internal SRAM.

This commit changes the function to copy the state only on the first
step.

Fixes: commit 2786cee8e5 ("crypto: marvell - Move SRAM I/O op...")
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-07 19:55:17 +08:00
Romain Perier 68c7f8c1c4 crypto: marvell - Don't copy hash operation twice into the SRAM
No need to copy the template of an hash operation twice into the SRAM
from the step function.

Fixes: commit 85030c5168 ("crypto: marvell - Add support for chai...")
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-07 19:55:16 +08:00
David S. Miller c63d352f05 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
Arnd Bergmann 37d8468108 crypto: caam - make aamalg_desc a proper module
The drivers/crypto/caam/ directory is entered during build only
for building modules when CONFIG_CRYPTO_DEV_FSL_CAAM=m, but
CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC is defined as a
'bool' symbol, meaning that caamalg_desc.c is always compiled
into built-in code, or not at all, leading to a link failure:

ERROR: "cnstr_shdsc_xts_ablkcipher_decap" [drivers/crypto/caam/caamalg.ko] undefined!
ERROR: "cnstr_shdsc_xts_ablkcipher_encap" [drivers/crypto/caam/caamalg.ko] undefined!
ERROR: "cnstr_shdsc_aead_givencap" [drivers/crypto/caam/caamalg.ko] undefined!
ERROR: "cnstr_shdsc_aead_decap" [drivers/crypto/caam/caamalg.ko] undefined!
ERROR: "cnstr_shdsc_aead_encap" [drivers/crypto/caam/caamalg.ko] undefined!
ERROR: "cnstr_shdsc_aead_null_decap" [drivers/crypto/caam/caamalg.ko] undefined!
ERROR: "cnstr_shdsc_aead_null_encap" [drivers/crypto/caam/caamalg.ko] undefined!
ERROR: "cnstr_shdsc_rfc4106_decap" [drivers/crypto/caam/caamalg.ko] undefined!
ERROR: "cnstr_shdsc_rfc4106_encap" [drivers/crypto/caam/caamalg.ko] undefined!
...

Making caamalg_desc itself a loadable module fixes this configuration
by ensuring the driver gets built. Aside from making the symbol
'tristate', I'm adding appropriate module metadata here.

Fixes: 8cea7b66b8 ("crypto: caam - refactor encryption descriptors generation")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-01 21:06:40 +08:00
Arnd Bergmann 9c0bc511e9 crypto: caam - pass key buffers with typesafe pointers
The 'key' field is defined as a 'u64' and used for two different
pieces of information: either to store a pointer or a dma_addr_t.
The former leads to a build error on 32-bit machines:

drivers/crypto/caam/caamalg_desc.c: In function 'cnstr_shdsc_aead_null_encap':
drivers/crypto/caam/caamalg_desc.c:67:27: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
drivers/crypto/caam/caamalg_desc.c: In function 'cnstr_shdsc_aead_null_decap':
drivers/crypto/caam/caamalg_desc.c:143:27: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]

Using a union to provide correct types gets rid of the warnings
and as well as a couple of redundant casts.

Fixes: db57656b00 ("crypto: caam - group algorithm related params")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-01 21:06:40 +08:00
Harsh Jain 2debd3325e crypto: chcr - Add AEAD algos.
Add support for following AEAD algos.
 GCM,CCM,RFC4106,RFC4309,authenc(hmac(shaXXX),cbc(aes)).

Reviewed-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:51 +08:00
Harsh Jain 5c86a8ff2e crypto: chcr - Move tfm ctx variable to request context
Move request specific data in request context.

Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:50 +08:00
Harsh Jain e7922729be crypto: chcr - Use SHASH_DESC_ON_STACK
Use SHASH_DESC_ON_STACK macro to allocate memory for ipad/opad
calculation.

Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:49 +08:00
Harsh Jain adf1ca6182 crypto: chcr - Adjust Dest. buffer size
Destination buffer size passed to hardware should not be greater
than crypto operation output.

Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:48 +08:00
Harsh Jain cc1b156df5 crypto: chcr - Calculate Reverse round key in setkey callback.
Move reverse round key calculation logic in setkey operation.

Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:47 +08:00
Harsh Jain 44fce12a34 crypto: chcr - Remove dynamic allocation
Remove malloc/free in hash operation and allocate
 memory in chcr_ahash_req_ctx structure.

Signed-off-by: Jitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:47 +08:00
Harsh Jain 18f0aa06a3 crypto: chcr - Fixes Unchecked dereference inside function
Fixes 324429d741, Unchecked dereference inside function.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:46 +08:00
Harsh Jain 358961d1cd crypto: chcr - Added new structure chcr_wr
Added new structure chcr_wr to populate Work Request Header.

Signed-off-by: Jitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:46 +08:00
Harsh Jain 39f91a34f3 crypto: chcr - Cosmetic change
Moves get_aes_decrypt_key function to .c file and declare inline for
"aes_ks_subword"

Signed-off-by: Jitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 20:01:45 +08:00
Herbert Xu 479d014de5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Merge the crypto tree to pull in chelsio chcr fix.
2016-11-30 19:53:12 +08:00
Harsh Jain 66bf093772 crypto: chcr - Fix memory corruption
Fix memory corruption done by  *((u32 *)dec_key + k)
 operation.

Signed-off-by: Jitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-30 19:46:44 +08:00
Horia Geantă 1a0166f199 crypto: caam - refactor ahash shared descriptor generation
Move ahash shared descriptor generation into a single function.
Currently there is no plan to support ahash on any other interface
besides the Job Ring, thus for now the functionality is not exported.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:23 +08:00
Horia Geantă 6655cb8e56 crypto: caam - consolidate split key length computation
Move split key length and padded length computation from caamalg.c
and caamhash.c to key_gen.c.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:23 +08:00
Horia Geantă 8cea7b66b8 crypto: caam - refactor encryption descriptors generation
Refactor the generation of the authenc, ablkcipher shared descriptors
and exports the functionality, such that they could be shared
with the upcoming caam/qi (Queue Interface) driver.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:23 +08:00
Horia Geantă 746f069038 crypto: caam - remove unneded dependencies on CRYPTO_DEV_FSL_CAAM
Remove dependency on CRYPTO_DEV_FSL_CAAM where superfluous:
depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
is equivalent to
depends on CRYPTO_DEV_FSL_CAAM_JR
since CRYPTO_DEV_FSL_CAAM_JR depends on CRYPTO_DEV_FSL_CAAM.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:23 +08:00
Horia Geantă 281669dfba crypto: caam - rewrite some generic inline append cmds
A few descriptor commands are generated using generic
inline append "append_cmd" function.
Rewrite them using specific inline append functions.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:22 +08:00
Horia Geantă 4cbe79ccb5 crypto: caam - improve key inlining
For authenc / stitched AEAD algorithms, check independently
each of the two (authentication, encryption) keys whether inlining
is possible.
Prioritize the inlining of the authentication key, since the length
of the (split) key is bigger than that of the encryption key.

For the other algorithms, compute only once per tfm the remaining
available bytes and decide whether key inlining is possible
based on this.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:22 +08:00
Horia Geantă 488ebc3a41 crypto: caam - remove superfluous alg_op algorithm param
Information carried by alg_op can be deduced from adata->algtype
plus some fixed flags.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:22 +08:00
Horia Geantă db57656b00 crypto: caam - group algorithm related params
In preparation of factoring out the shared descriptors,
struct alginfo is introduced to group the algorithm related
parameters.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:22 +08:00
Horia Geantă 64c9295b23 crypto: caam - move append_key_aead() into init_sh_desc_key_aead()
append_key_aead() is used in only one place, thus inline it.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28 21:23:21 +08:00
Ingo Molnar 064e6a8ba6 Merge branch 'linus' into x86/fpu, to resolve conflicts
Conflicts:
	arch/x86/kernel/fpu/core.c

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-11-23 07:18:09 +01:00
David S. Miller f9aa9dc7d2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
All conflicts were simple overlapping changes except perhaps
for the Thunder driver.

That driver has a change_mtu method explicitly for sending
a message to the hardware.  If that fails it returns an
error.

Normally a driver doesn't need an ndo_change_mtu method becuase those
are usually just range changes, which are now handled generically.
But since this extra operation is needed in the Thunder driver, it has
to stay.

However, if the message send fails we have to restore the original
MTU before the change because the entire call chain expects that if
an error is thrown by ndo_change_mtu then the MTU did not change.
Therefore code is added to nicvf_change_mtu to remember the original
MTU, and to restore it upon nicvf_update_hw_max_frs() failue.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22 13:27:16 -05:00
Hariprasad Shenai ab677ff4ad cxgb4: Allocate Tx queues dynamically
Allocate resources dynamically for Upper layer driver's (ULD) like
cxgbit, iw_cxgb4, cxgb4i and chcr. The resources allocated include Tx
queues which are allocated when ULD register with cxgb4 driver and freed
while un-registering. The Tx queues which are shared by ULD shall be
allocated by first registering driver and un-allocated by last
unregistering driver.

Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 14:04:29 -05:00
Naveen N. Rao 18f47f5e47 crypto: vmx - various build fixes
First up, clean up the generated .S files properly on a 'make clean'.
Secondly, force re-generation of these files when building for different
endian-ness than what was built previously. Finally, generate the new
files in the build tree, rather than the source tree.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-17 23:35:02 +08:00
Geliang Tang 9b50184ea5 crypto: nx - drop duplicate header types.h
Drop duplicate header types.h from nx.c.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-17 23:34:55 +08:00
Arnd Bergmann a5a40d4624 crypto: caam - fix type mismatch warning
Building the caam driver on arm64 produces a harmless warning:

drivers/crypto/caam/caamalg.c:140:139: warning: comparison of distinct pointer types lacks a cast

We can use min_t to tell the compiler which type we want it to use
here.

Fixes: 5ecf8ef910 ("crypto: caam - fix sg dump")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-17 22:14:21 +08:00
Horia Geantă 9a1a1c08dc crypto: caam - merge identical ahash_final/finup shared desc
Shared descriptors used by ahash_final() and ahash_finup()
are identical, thus get rid of one of them (sh_desc_finup).

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:16 +08:00
Horia Geantă 24a4f14f0a crypto: caam - constify pointer to descriptor buffer
The pointer to the descriptor buffer is not touched,
it always points to start of the descriptor buffer.
Thus, make it const.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:14 +08:00
Horia Geantă e25ff92e8f crypto: caam - move sec4_sg_entry to sg_sw_sec4.h
sec4_sg_entry structure is used only by helper functions in sg_sw_sec4.h.
Since SEC HW S/G entries are to be manipulated only indirectly, via these
functions, move sec4_sg_entry to the corresponding header.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:14 +08:00
Horia Geantă 2b163b5bce Revert "crypto: caam - get rid of tasklet"
This reverts commit 66d2e20280.

Quoting from Russell's findings:
https://www.mail-archive.com/linux-crypto@vger.kernel.org/msg21136.html

[quote]
Okay, I've re-tested, using a different way of measuring, because using
openssl speed is impractical for off-loaded engines.  I've decided to
use this way to measure the performance:

dd if=/dev/zero bs=1048576 count=128 | /usr/bin/time openssl dgst -md5

For the threaded IRQs case gives:

0.05user 2.74system 0:05.30elapsed 52%CPU (0avgtext+0avgdata 2400maxresident)k
0.06user 2.52system 0:05.18elapsed 49%CPU (0avgtext+0avgdata 2404maxresident)k
0.12user 2.60system 0:05.61elapsed 48%CPU (0avgtext+0avgdata 2460maxresident)k
	=> 5.36s => 25.0MB/s

and the tasklet case:

0.08user 2.53system 0:04.83elapsed 54%CPU (0avgtext+0avgdata 2468maxresident)k
0.09user 2.47system 0:05.16elapsed 49%CPU (0avgtext+0avgdata 2368maxresident)k
0.10user 2.51system 0:04.87elapsed 53%CPU (0avgtext+0avgdata 2460maxresident)k
	=> 4.95 => 27.1MB/s

which corresponds to an 8% slowdown for the threaded IRQ case.  So,
tasklets are indeed faster than threaded IRQs.

[...]

I think I've proven from the above that this patch needs to be reverted
due to the performance regression, and that there _is_ most definitely
a deterimental effect of switching from tasklets to threaded IRQs.
[/quote]

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:13 +08:00
Horia Geantă c73e36e82b crypto: caam - fix DMA API mapping leak in ablkcipher code
alkcipher_edesc_alloc() and ablkcipher_giv_edesc_alloc() don't
free / unmap resources on error path:
- dmap_map_sg() could fail, thus make sure the return value is checked
- unmap DMA mappings in case of error

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:13 +08:00
Horia Geantă 9305dff7ab crypto: caam - remove unreachable code in report_ccb_status()
ERRID is a 4-bit field.
Since err_id values are in [0..15] and err_id_list array size is 16,
the condition "err_id < ARRAY_SIZE(err_id_list)" is always true.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:12 +08:00
Horia Geantă 4ca7c7d8fe crypto: caam - trivial code clean-up
-replace offsetof with container_of
-remove unused "assoc_nents", "iv_dma" from aead_edesc
and fix comments
-remove unused CAAM_MAX_IV_LENGTH #define

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:12 +08:00
Horia Geantă 1b008eedb0 crypto: caam - remove unused command from aead givencrypt
REG3 no longer needs to be updated, since it's not used after that.
This shared descriptor command is a leftover of the conversion to
AEAD interface.

Fixes: 479bcc7c5b "crypto: caam - Convert authenc to new AEAD interface"
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:11 +08:00
Horia Geantă 00fef2b26a crypto: caam - remove unused may_sleep in dbg_dump_sg()
Fixes: 5ecf8ef910 "crypto: caam - fix sg dump"
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:09 +08:00
Horia Geantă c530e34140 crypto: caam - fix smatch warnings
Fix the following smatch warnings:

drivers/crypto/caam/caamalg.c:2350 aead_edesc_alloc() warn: we tested 'src_nents' before and it was 'true'
drivers/crypto/caam/caamrng.c:351 caam_rng_init() error: no modifiers for allocation.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-13 17:45:09 +08:00