Commit Graph

361 Commits

Author SHA1 Message Date
Linus Torvalds 2ce3f2b3b1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull from Herbert Xu:
  "This push fixes a bug in mv_cesa that causes all hash operations
   that supply data on a final operation to fail."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: mv_cesa - fix final callback not ignoring input data
2012-03-03 09:31:49 -08:00
Phil Sutter f8f54e190d crypto: mv_cesa - fix final callback not ignoring input data
Broken by commit 6ef84509f3 for users
passing a request with non-zero 'nbytes' field, like e.g. testmgr.

Cc: <stable@kernel.org> # 3.0+
Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-02-28 16:29:23 +08:00
Linus Torvalds 4f58cb90bc Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (54 commits)
  crypto: gf128mul - remove leftover "(EXPERIMENTAL)" in Kconfig
  crypto: serpent-sse2 - remove unneeded LRW/XTS #ifdefs
  crypto: serpent-sse2 - select LRW and XTS
  crypto: twofish-x86_64-3way - remove unneeded LRW/XTS #ifdefs
  crypto: twofish-x86_64-3way - select LRW and XTS
  crypto: xts - remove dependency on EXPERIMENTAL
  crypto: lrw - remove dependency on EXPERIMENTAL
  crypto: picoxcell - fix boolean and / or confusion
  crypto: caam - remove DECO access initialization code
  crypto: caam - fix polarity of "propagate error" logic
  crypto: caam - more desc.h cleanups
  crypto: caam - desc.h - convert spaces to tabs
  crypto: talitos - convert talitos_error to struct device
  crypto: talitos - remove NO_IRQ references
  crypto: talitos - fix bad kfree
  crypto: convert drivers/crypto/* to use module_platform_driver()
  char: hw_random: convert drivers/char/hw_random/* to use module_platform_driver()
  crypto: serpent-sse2 - should select CRYPTO_CRYPTD
  crypto: serpent - rename serpent.c to serpent_generic.c
  crypto: serpent - cleanup checkpatch errors and warnings
  ...
2012-01-10 22:01:27 -08:00
Jamie Iles a9c57a9c6a crypto: picoxcell - fix boolean and / or confusion
The AES engine only supports 128 and 256 bit keys so we should correctly
test for that.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:05 +08:00
Kim Phillips a1a38c4c6a crypto: caam - remove DECO access initialization code
Access to the SEC4 DECOs (DEscriptor COntrollers) (for debug purposes)
isn't supported or used, and its register access initialization code
erroneously makes illegal i/o accesses that show up as errors when
run under simulation.  Remove it until proper support (via DECORR)
is added.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:05 +08:00
Kim Phillips a2ecb155a3 crypto: caam - fix polarity of "propagate error" logic
the polarity of the definition for error propagation was reverse
in the initial desc.h.  Fix desc.h and its users.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:04 +08:00
Kim Phillips b028b546a6 crypto: caam - more desc.h cleanups
manual removal of double-spaces - no non-whitespace changes.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:04 +08:00
Kim Phillips 1582fa8147 crypto: caam - desc.h - convert spaces to tabs
this is the result of running unexpand -a on desc.h.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:03 +08:00
Kim Phillips 5e718a09e5 crypto: talitos - convert talitos_error to struct device
SEC2/3 h/w doesn't have a dedicated interrupt for errors,
and the only callsite for talitos_error has already done
the type conversion, so simplify talitos_error to take a
pointer to a struct device.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:02 +08:00
Kim Phillips 2cdba3cf6f crypto: talitos - remove NO_IRQ references
As prescribed by Linus:

https://lkml.org/lkml/2011/12/2/290

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:02 +08:00
Kim Phillips 0b2730d8d8 crypto: talitos - fix bad kfree
Fix a kfree to an invalid address which causes an oops when running
on SEC v2.0 h/w (introduced in commit 702331b "crypto: talitos - add
hmac algorithms").

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:01 +08:00
Axel Lin 741e8c2d81 crypto: convert drivers/crypto/* to use module_platform_driver()
This patch converts the drivers in drivers/crypto/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: James Hsiao <jhsiao@amcc.com>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-30 16:12:48 +08:00
Linus Torvalds dd38d29838 Merge git://github.com/herbertx/crypto
* git://github.com/herbertx/crypto:
  crypto: mv_cesa - fix hashing of chunks > 1920 bytes
2011-11-25 21:55:07 -08:00
Phil Sutter 274252862f crypto: mv_cesa - fix hashing of chunks > 1920 bytes
This was broken by commit 7759995c75 (yes,
myself). The basic problem here is since the digest state is only saved
after the last chunk, the state array is only valid when handling the
first chunk of the next buffer. Broken since linux-3.0.

Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Cc: <stable@kernel.org> # 3.1.x
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:23:08 +08:00
Kim Phillips 8b4d43a4e7 crypto: caam - add support for MD5 algorithm variants
specifically, add these algorithm combinations:

authenc-hmac-md5-cbc-aes-caam
authenc-hmac-md5-cbc-des3_ede-caam
authenc-hmac-md5-cbc-des-caam

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:21:53 +08:00
Kim Phillips c3e337f88a crypto: talitos - support for channel remap and 2nd IRQ
Some later SEC v3.x are equipped with a second IRQ line.
By correctly assigning IRQ affinity, this feature can be
used to increase performance on dual core parts, like the
MPC8572E and P2020E.

The existence of the 2nd IRQ is determined from the device
node's interrupt property.  If present, the driver remaps
two of four channels, which in turn makes those channels
trigger their interrupts on the 2nd line instead of the first.
To handle single- and dual-IRQ combinations efficiently,
talitos gets two new interrupt handlers and back-half workers.

[includes a fix to MCR_LO's address.]

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:21:51 +08:00
Kim Phillips ad42d5fc85 crypto: talitos - prepare driver for channel remap support
Add a reg member to the channel struct and use it to
access channels.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:21:50 +08:00
Kim Phillips 5b859b6ebb crypto: talitos - be less noisy on startup
talitos prints every algorithm it registers at module load time.
Algorithms are being added that make for an excessively noisy console
(latest HMACs patch makes an SEC 3.1 print 20 lines).
Instead, display the SEC h/w version number, and inform the
user of algorithm registration status in /proc/crypto, like so:

talitos ffe30000.crypto: fsl,sec3.1 algorithms registered in /proc/crypto

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:21:50 +08:00
Lee Nipper 79b3a418e0 crypto: talitos - add hmac algorithms
Add these hmac algorithms to talitos:
    hmac(md5),
    hmac(sha1),
    hmac(sha224),
    hmac(sha256),
    hmac(sha384),
    hmac(sha512).
These are all type ahash.

Signed-off-by: Lee Nipper <lee.nipper@gmail.com>

Fixed up to not register HMAC algorithms on sec2.0 devices.
Rationale (from Lee):

on an 8349E Rev1.1, there's a problem with hmac for any talitos
hmac sequence requiring an intermediate hash context (Pointer
DWORD 1); the result is an incorrect hmac.  An intermediate hash
context is required for something longer than (65536-blocksize),
and for other cases when update/finup/final are used inefficiently.
Interestingly, a normal hash (without hmac) works perfectly
when using an intermediate context.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:21:48 +08:00
Linus Torvalds 32aaeffbd4 Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include <linux/module.h>
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include <linux/module.h>
  net: sch_generic remove redundant use of <linux/module.h>
  net: inet_timewait_sock doesnt need <linux/module.h>
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
2011-11-06 19:44:47 -08:00
Paul Gortmaker 4bb33cc890 crypto: add module.h to those files that are explicitly using it
Part of the include cleanups means that the implicit
inclusion of module.h via device.h is going away.  So
fix things up in advance.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:11 -04:00
Kim Phillips 3e721aeb3d crypto: talitos - handle descriptor not found in error path
The CDPR (Current Descriptor Pointer Register) can be unreliable
when trying to locate an offending descriptor.  Handle that case by
(a) not OOPSing, and (b) reverting to the machine internal copy of
the descriptor header in order to report the correct execution unit
error.

Note: printing all execution units' ISRs is not effective because it
results in an internal time out (ITO) error and the EU resetting its
ISR value (at least when specifying an invalid key length on an SEC
2.2/MPC8313E).

Reported-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 15:20:28 +02:00
Richard Weinberger 75b766258e crypto: Make hifn_795x build depend on !ARCH_DMA_ADDR_T_64BIT
hifn_795x works only on 32 bit, remove the detection while loading
the module and catch non-32 bit systems at build time.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:28:57 +02:00
Jamie Iles fad8fa4782 crypto: picoxcell - add dependency on HAVE_CLK
The picoxcell crypto driver requires the clk API, but the platform in
mainline does not currently support it.  Add an explicit dependency on
HAVE_CLK to avoid build breakage.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-20 14:10:26 +02:00
Thomas Meyer e27303b256 crypto: n2 - Fix a get/put_cpu() imbalance
Fix a get/put_cpu() imbalance in the error case when qp == NULL

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-15 15:20:19 +08:00
Jamie Iles b64dc04beb crypto: picoxcell - fix possible invalid pointer dereference
The completion callback will free the request so we must remove it from
the completion list before calling the callback.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-10 19:00:27 +08:00
Jamie Iles 30343ef1de crypto: picoxcell - support for device tree matching
Allow the crypto engines to be matched from device tree bindings.

Cc: devicetree-discuss@lists.ozlabs.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-10 19:00:26 +08:00
Jamie Iles 4efae8c936 crypto: picoxcell - add connection ID to the clock name
For using the device tree probing we use a connection ID for the
clk_get() operation.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-10 19:00:24 +08:00
Jamie Iles c3f4200f57 crypto: picoxcell - convert to platform ID table
Use a platform ID table and a single platform_driver.  It's neater and
makes the device tree addition easier and more consistent.  Rename the
match values to be inline with what they'll be in the device tree
bindings.  There aren't any current in-tree users of the existing device
names.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-10 19:00:24 +08:00
Jonathan Nieder c39cc377f9 crypto: padlock-aes - Make module loading even quieter when hardware is missing
When loading aes via the module alias, a padlock module failing to
load due to missing hardware is not particularly notable.  With
v2.6.27-rc1~1107^2~14 (crypto: padlock - Make module loading quieter
when hardware isn't available, 2008-07-03), the padlock-aes module
suppresses the relevant messages when the "quiet" flag is in use; but
better to suppress this particular message completely, since the
administrator can already distinguish such errors by the absence of a
message indicating initialization failing or succeeding.

This avoids occasional messages in syslog of the form

	padlock_aes: VIA PadLock not detected.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-03 14:07:11 +08:00
David S. Miller eb7caf3595 n2_crypto: Attach on Niagara-T3.
A small modification was necessary since in the machine description
for 'n2cp' and 'ncp' nodes, there no longer is an 'intr' property.

That's OK because this property was always nothing more than an
array of integers '1' ... 'nr_inos + 1' so we can just compute it
in-place.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-28 01:30:07 -07:00
Linus Torvalds 0003230e82 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  fs: take the ACL checks to common code
  bury posix_acl_..._masq() variants
  kill boilerplates around posix_acl_create_masq()
  generic_acl: no need to clone acl just to push it to set_cached_acl()
  kill boilerplate around posix_acl_chmod_masq()
  reiserfs: cache negative ACLs for v1 stat format
  xfs: cache negative ACLs if there is no attribute fork
  9p: do no return 0 from ->check_acl without actually checking
  vfs: move ACL cache lookup into generic code
  CIFS: Fix oops while mounting with prefixpath
  xfs: Fix wrong return value of xfs_file_aio_write
  fix devtmpfs race
  caam: don't pass bogus S_IFCHR to debugfs_create_...()
  get rid of create_proc_entry() abuses - proc_mkdir() is there for purpose
  asus-wmi: ->is_visible() can't return negative
  fix jffs2 ACLs on big-endian with 16bit mode_t
  9p: close ACL leaks
  ocfs2_init_acl(): fix a leak
  VFS : mount lock scalability for internal mounts
2011-07-25 12:53:15 -07:00
Al Viro eda65cc6ce caam: don't pass bogus S_IFCHR to debugfs_create_...()
it will be replaced with S_IFREG anyway

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-24 10:12:42 -04:00
Yuan Kang acdca31dba crypto: caam - ablkcipher support
caam now supports encrypt and decrypt
for aes, des and 3des

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-15 11:21:42 +08:00
Yuan Kang 1acebad3d8 crypto: caam - faster aead implementation
Job descriptors only contain header and seq pointers.

Other commands are stored in separate shared descriptors
for encrypt, decrypt and givencrypt, stored as arrays
in caam_ctx.

This requires additional macros to create math commands
to calculate assoclen and cryptlen.

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-15 11:21:42 +08:00
Yuan Kang 885e9e2fd3 crypto: caam - structure renaming
caam_ctx.key_phys to key_dma

caam_alg_template supports multiple algorithm types
listed in union, which requires cases for
different types in function caam_alg_alloc

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-15 11:21:41 +08:00
Yuan Kang 0e47930020 crypto: caam - shorter names
"aead_authenc" and "ipsec_esp" changed to "aead,"
except for function "ipsec_esp," which is changed
to "init_aead_job."

Variable name of aead_request structures changed
to "req" and name of aead_givcrypt_request structure
changed to "areq"

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-15 11:21:41 +08:00
Kim Phillips 1c2b4abb19 crypto: talitos - don't bad_key in ablkcipher setkey
crypto/ablkcipher.c's setkey() has already checked against the min, max
key sizes before it calls here, and all max_keysize assignments in the
algorithm template array do not exceed TALITOS_MAX_KEY_SIZE.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-15 11:21:40 +08:00
Kim Phillips febec54286 crypto: talitos - remove unused giv from ablkcipher methods
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-15 11:21:39 +08:00
Kim Phillips 602dba5a81 crypto: talitos - don't set done notification in hot path
IRQ done notification is always set.  Remove its explicit
assignment from the hot path by including it in the
descriptor header template assignment in talitos_cra_init.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-15 11:21:39 +08:00
Kim Phillips 5228f0f79e crypto: talitos - ensure request ordering within a single tfm
Assign single target channel per tfm in talitos_cra_init instead of
performing channel scheduling dynamically during the encryption request.
This changes the talitos_submit interface to accept a new channel
number argument.  Without this, rapid bursts of misc. sized requests
could make it possible for IPsec packets to be encrypted out-of-order,
which would result in packet drops due to sequence numbers falling
outside the anti-reply window on a peer gateway.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-07-15 11:21:38 +08:00
Josh Boyer c5697462ae crypto: crypto4xx - Perform read/modify/write on device control register
The Security function on the AMCC SoCs has multiple engines within a
single MMIO range.  The crypto driver currently enables the 3DES
functionality by doing a blind write to the device control register.
This can unintentionally disable other functions like the PKA or TRNG
when the driver is loaded.

Perform a read/modify/write to enable the 3DES function instead.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:05 +08:00
Kim Phillips 23457bc956 crypto: caam - fix build warning when DEBUG_FS not configured
drivers/crypto/caam/ctrl.c: In function 'caam_probe':
drivers/crypto/caam/ctrl.c:55:23: warning: unused variable 'perfmon'

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:05 +08:00
Dmitry Kasatkin cd3f1d545c crypto: omap-sham - do not schedule tasklet if there is no active requests
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:05 +08:00
Dmitry Kasatkin 0efd4d8a6a crypto: omap-sham - clear device flags when finishing request
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:04 +08:00
Dmitry Kasatkin ed635cb85e crypto: omap-sham - irq handler must not clear error code
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:04 +08:00
Dmitry Kasatkin 6c63db821d crypto: omap-sham - irq and dma handling changes
It could be a situation, that tasklet is executed twice because of
certain delay between dma callback and irq handler execution.
In that case, second tasklet execution could actually corrupt the data
of the new started dma transactions.

This patch improves tasklet logic and prevents above described cases.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:04 +08:00
Dmitry Kasatkin 6cb3ffe100 crypto: omap-sham - remove dedicated queue handling tasklet
Calling omap_sham_handle_queue from "done" tasklet should be done
after irq scheduled tasklet completes.
Having additional tasklet does not solve that issue because it might
be execute before.
So queue handling tasklet has been removed and functionality integrated
into single tasklet.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:04 +08:00
Dmitry Kasatkin 171cb9a280 crypto: omap-sham - remove unnecessary local variable
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:03 +08:00
Dmitry Kasatkin ed3ea9a82b crypto: omap-sham - move some flags to device context
Couple of context flags have been moved to device flags.
IRQ and tasklet handlers does not need to access request
context anymore.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:03 +08:00