summaryrefslogtreecommitdiff
path: root/drivers/crypto
AgeCommit message (Collapse)Author
2012-08-12ENGR00216259 caam: improve RNG4 initialization processSteve Cornelius
Early versions of this driver used a set of entropy generation parameters inherited from QorIQ devices. Those parameters were a hardcoded set based upon internally-suggested values, and worked well on QorIQ. However, for certain mx6 devices, oscillator values were found to be exceeding the upper limit, and so RNG instantiation was failing in those cases. This code improves initialization by (a) making sure the oscillator divider is set to a known value, and (b) converting the parameter selection to a symbolic compiler-generated form, instead of using embedded magic number constants. The calculation is now based on the definition of RNG4_ENT_CLOCKS_SAMPLE, which defaults to 1600 unless overridden by something. The lower limit is then set as /4, and the upper limit set to *8. Tested-by: Minnick Michael-B21710 <b21710@freescale.com> Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Jason Liu <r64343@freescale.com>
2012-08-06ENGR00219164: caam: limit AXI pipeline depth = 1 on mx6 for errataSteve Cornelius
This patch limits AXI pipeline depth to 1 as a workaround for errta TKT134813, the write concurrency problem on mx6. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-25ENGR00215945-3: caam: Improve error recovery on failed RNG4 kickstartSteve Cornelius
RNG4 requires a kickstart process to transition into running mode. In the case that this kickstart process errors, the driver is shut back down (under the assumption that internal random padding of keys or data cannot occur). In an isolated case, the kickstart failed to start the RNG, an error was returned, and the driver attempted to de-register an RNG function that never completed, causing a crash. (This is difficult to test for without manual intervention). Therefore, amended the driver shutdown process to only de-register the hardware RNG when an instance kickstarted without error. This does NOT correct the kickstart problem, only the consequences. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-25ENGR00215945-2: Fix directions in cache coherence functionsSteve Cornelius
During a bug search, a review turned up two places where the wrong direction was used in dma_sync function calls. In practice. these compiled away to be inconsequential on the platform in question, but this may not be true on all platforms. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-25ENGR00215945-1: Rework scatterlist handling for bi-endian platformsSteve Cornelius
Former versions of this (ARM) branch of this driver reworked the hardware- readable scatter/gather list to operate as a set of 32-bit integers, rather than a packed structure of smaller sizes, which cannot burst-read correctly on a little-endian platform. Integration of caamhash.c revealed subtle ways in which the ordering of items written to a hardware s/g list could create bugs, such as the "final" bit being written to an entry that would later be updated with a size, inadvertently erasing the bit (e.g. such as sg_to_sec4_sg_last() before sg_to_sec4_sg()). 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: Terry Lv <r65388@freescale.com>
2012-07-25ENGR00217306-1: Add DCP/RNGB driver supportTerry Lv
This patch will add driver menu support. And also, for rng don't need to enable clock, we add operation when no clock is specified for rng. Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00215492-3: Detect HW features during alg registrationSteve Cornelius
i.MX6 instantiates a CAAM with a low-power MDHA block, which does not compute digests larger than 256 bits. Since the driver installs handlers for hashes longer than 256 bits in several places, added the ability to read and interpret the CHA version and instantiations registers, and then only register handlers that it can support. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00215492-2: Add SGT error to formerly reserved entrySteve Cornelius
Add SGT error to formerly reserved entry. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00215492-1: Fix DMA size in extended descriptor for ahash_digest()Steve Cornelius
Save of DMA size in extended descriptor was missing, thus crashes could occur during post-request unmapping. Also, removed lingering DEBUG def that shouldn't have been there. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00215228-16: Add API module for asynchronous hashingSteve Cornelius
Add API module for asynchronous hashing Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00215228-15: Add API module for /dev/hw_randomSteve Cornelius
Add API module for /dev/hw_random Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00215228-14: Add in RNG4 kickstart functionSteve Cornelius
Add in RNG4 kickstart function Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-13: Add cache coherence to externalized key generationSteve Cornelius
Add cache coherence to externalized key generation Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-12: Move scatter/gather cache coherence into chained function.Steve Cornelius
Last driver revisions began to incorporate optimized mapping functions for scatter/gather list management, and then centralized them as inlinable functions usable from multiple modules. Since these became more globally useful, moved the coupled cache-coherence functions out of the mainline code and into the inlined ones for simplification. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-11: Enable ahash and rng configurationsSteve Cornelius
Add in ahash and rng options for build. Note that because of the way platform devices detect (as opposed to of-based detection), modularization of API interfaces is suppressed. Once CONFIG_OF is possible, this can go away. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-10: Descriptor optimizations, misc whitespace fixes.Steve Cornelius
Descriptor optimizations, misc whitespace fixes. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00215228-9: Add hash and RNG initializers for non-OF buildsSteve Cornelius
Inserted explicit initializers for split-out startup and shutdown functions needed for kernels using platform devices in place of OF-device-tree initialization and detection. Also added necessary ahash algorithm list head to driver private storage block. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-8: Add pointer length extensions, non-error-propgation definition.Steve Cornelius
Add pointer length extensions, non-error-propgation definition. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-7: Externalize SG lists plus split-key generationSteve Cornelius
Split out inline scatter-gather list handlers into an external header, and moved key generation into standalone source. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00215228-6: Externalize scatter-gather handling for multiple API modules.Steve Cornelius
Moved scatter-gather list management outside of single API module in anticipation of multiple API modules which may be switch selectable. This includes a number of list management optimizations, as well as some aead descriptor optimizations. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-5: Add <md5.h> inclusion for expanded aead processing.Steve Cornelius
Add <md5.h> inclusion for expanded aead processing. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-4: Synchronize scatter/gather table definitions with QorIQ defsSteve Cornelius
Update scatter/gather definitions to more closely correspond with those in the QorIQ 1.2 release tree. Note that the definition of the CAAM-local scatter-gather table for QorIQ/Power-based devices assumed big-endian, and therefore does not burst-read properly into an ARM-based little-endian instantiation. Therefore, applied close-as-practical definitions to at least get close until a merge can be accomplished. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-3: Merge in RNGB changesSteve Cornelius
Added in register changes to enable RNGB initialization when it is present. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-2: Add era4 amendments and whitespace fixesSteve Cornelius
Added in era4 additions, and merged in whitespace fixes so as to be closed to QorIQ 1.2 staged-for-release code base. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00215228-1: Remove unused DECO base pointerSteve Cornelius
Remove unused DECO base pointer to be consistent with staged-for-1.2 QorIQ release. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00212512: Fix caam build error when being built as moduleTerry Lv
Fix caam build error when being built as module. Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00180943-14: Update internal definition of hardware link table listSteve Cornelius
Update internal definition of hardware link table list such that it can work properly on both big and little endian 32-bit configurations. This required pointer resizing, reserved-field initialization, and the combination of both buffer-pool ID and offset fields into a common 32-bit value that can burst-read correctly. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00180943-13: Extend for ARM/iMX6 compatibilitySteve Cornelius
Extend for ARM/iMX6 compatibility, including: - Cache coherence for all streaming buffer mappings - Initialization from non-OF-dependent lower-level drivers Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00180943-12: Extend to include support for ARM targets on iMX6 platformsSteve Cornelius
Extend to include support for ARM targets on iMX6 platforms, including: - platform property detection when OF device properties unavailable - ring entry direction clarification for DMA API access - cache coherence for rings Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00180943-11: Add non-device-tree platform property detectionSteve Cornelius
Add non-device-tree platform property detection for driver startup and initialization for iMX6 family, including clock control, job ring detection and initialization, and interrupt mapping. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00180943-10: Add register I/O primitives for ARM compatibilitySteve Cornelius
Add register I/O primitives for ARM compatibility. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00180943-9: Include referenced for clock controlSteve Cornelius
Include referenced for clock control, and define "empty" IRQ function that's not provided on ARM platforms. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00180943-8: Differentiate inclusions for OF versus non-OF platformsSteve Cornelius
Differentiate inclusions for OF versus non-OF platforms, and include clock control subsystems for ARM targets. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00180943-2: Enable MXC devices to select CAAM driver in KconfigSteve Cornelius
Enable MXC devices to select CAAM driver in Kconfig. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com>
2012-07-20ENGR00180943-1: Backport in current 3.2 code tested on Power for ARMSteve Cornelius
Backport in current 3.2 code tested on Power for ARM redevelopment. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
2012-07-20ENGR00141399-3 DCP: add dcp driver supportFrank Li
upgrade to 2.6.38 Signed-off-by: Frank Li <Frank.Li@freescale.com>
2012-05-21crypto: mv_cesa requires on CRYPTO_HASH to buildAlexander Clouter
commit 1ebfefcf37a6e308266a8d786e8cfea0a454058c upstream. Without CRYPTO_HASH being selected, mv_cesa has a lot of hooks into undefined exports. ---- MODPOST 81 modules Kernel: arch/arm/boot/Image is ready AS arch/arm/boot/compressed/head.o GZIP arch/arm/boot/compressed/piggy.gzip CC arch/arm/boot/compressed/misc.o CC arch/arm/boot/compressed/decompress.o ERROR: "crypto_ahash_type" [drivers/crypto/mv_cesa.ko] undefined! ERROR: "crypto_shash_final" [drivers/crypto/mv_cesa.ko] undefined! ERROR: "crypto_register_ahash" [drivers/crypto/mv_cesa.ko] undefined! ERROR: "crypto_unregister_ahash" [drivers/crypto/mv_cesa.ko] undefined! ERROR: "crypto_shash_update" [drivers/crypto/mv_cesa.ko] undefined! ERROR: "crypto_shash_digest" [drivers/crypto/mv_cesa.ko] undefined! ERROR: "crypto_shash_setkey" [drivers/crypto/mv_cesa.ko] undefined! ERROR: "crypto_alloc_shash" [drivers/crypto/mv_cesa.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 make: *** Waiting for unfinished jobs.... ---- Signed-off-by: Alexander Clouter <alex@digriz.org.uk> Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-12crypto: mv_cesa - fix final callback not ignoring input dataPhil Sutter
commit f8f54e190ddb4ed697036b60f5e2ae6dd45b801c upstream. Broken by commit 6ef84509f3d439ed2d43ea40080643efec37f54f for users passing a request with non-zero 'nbytes' field, like e.g. testmgr. Signed-off-by: Phil Sutter <phil.sutter@viprinet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-12-09crypto: mv_cesa - fix hashing of chunks > 1920 bytesPhil Sutter
commit 274252862f386b7868f35bf5ceaa5391a8ccfdf3 upstream. This was broken by commit 7759995c75ae0cbd4c861582908449f6b6208e7a (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> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-30crypto: caam - fix operator precedence in shared descriptor allocationKim Phillips
setkey allocates 16 bytes (CAAM_CMD_SZ * DESC_AEAD_SHARED_TEXT_LEN) shy of what is needed to store the shared descriptor, resulting in memory corruption. Fix this. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-23[S390] ap: skip device registration on type probe failureHolger Dengler
The registration of an ap device will be skipped, if the device type probing fails. Add names of current crypto adapters to the Kconfig help. Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (45 commits) crypto: caam - add support for sha512 variants of existing AEAD algorithms crypto: caam - remove unused authkeylen from caam_ctx crypto: caam - fix decryption shared vs. non-shared key setting crypto: caam - platform_bus_type migration crypto: aesni-intel - fix aesni build on i386 crypto: aesni-intel - Merge with fpu.ko crypto: mv_cesa - make count_sgs() null-pointer proof crypto: mv_cesa - copy remaining bytes to SRAM only when needed crypto: mv_cesa - move digest state initialisation to a better place crypto: mv_cesa - fill inner/outer IV fields only in HMAC case crypto: mv_cesa - refactor copy_src_to_buf() crypto: mv_cesa - no need to save digest state after the last chunk crypto: mv_cesa - print a warning when registration of AES algos fail crypto: mv_cesa - drop this call to mv_hash_final from mv_hash_finup crypto: mv_cesa - the descriptor pointer register needs to be set just once crypto: mv_cesa - use ablkcipher_request_cast instead of the manual container_of crypto: caam - fix printk recursion for long error texts crypto: caam - remove unused keylen from session context hwrng: amd - enable AMD hw rnd driver for Maple PPC boards hwrng: amd - manage resource allocation ...
2011-05-19crypto: caam - add support for sha512 variants of existing AEAD algorithmsKim Phillips
In doing so, sha512 sized keys would not fit with the current descriptor inlining mechanism, so we now calculate whether keys should be referenced instead by pointers in the shared descriptor. also, use symbols for descriptor text lengths, and, ahem, unmap and free key i/o memory in cra_exit. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-19crypto: caam - remove unused authkeylen from caam_ctxKim Phillips
Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-19crypto: caam - fix decryption shared vs. non-shared key settingKim Phillips
Key sharing is enabled by default in the shared descriptor. Using CBC decrypt, AES has to alter the key in order to decrypt. During high traffic decryption rates, i.e, when sharing starts to take place, we need to use a different OPERATION option to tell AES that the key was already altered by the PRIOR descriptor - we need the following kind of logic: if ( shared ) operation where AES uses decryption key (DK=1) else operation where AES uses encryption key (DK=0) this patch implements this logic using a conditional and a non-conditional local jump within the decryption job descriptor. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-19crypto: caam - platform_bus_type migrationKim Phillips
this fixes a build error since cryptodev-2.6 got rebased to include commit d714d1979d7b4df7e2c127407f4014ce71f73cd0 "dt: eliminate of_platform_driver shim code". Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-11crypto: mv_cesa - make count_sgs() null-pointer proofPhil Sutter
This also makes the dummy scatterlist in mv_hash_final() needless, so drop it. XXX: should this routine be made pulicly available? There are probably other users with their own implementations. Signed-off-by: Phil Sutter <phil.sutter@viprinet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-11crypto: mv_cesa - copy remaining bytes to SRAM only when neededPhil Sutter
Signed-off-by: Phil Sutter <phil.sutter@viprinet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-11crypto: mv_cesa - move digest state initialisation to a better placePhil Sutter
On one hand, the digest state registers need to be set only when actually using the crypto engine. On the other hand, there is a check for ctx->first_hash in mv_process_hash_current() already, so use that. Signed-off-by: Phil Sutter <phil.sutter@viprinet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-11crypto: mv_cesa - fill inner/outer IV fields only in HMAC casePhil Sutter
Signed-off-by: Phil Sutter <phil.sutter@viprinet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-12 01:14:57 +0000