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path: root/drivers/crypto/caam/caamalg.c
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* crypto: caam - chaining supportYuan Kang2012-06-271-44/+70
| | | | | | | | | | | | | support chained scatterlists for aead, ablkcipher and ahash. Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com> - fix dma unmap leak - un-unlikely src == dst, due to experience with AF_ALG Signed-off-by: Kudupudi Ugendreshwar <B38865@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - link_tbl renameYuan Kang2012-06-271-113/+113
| | | | | | | | | | | - rename scatterlist and link_tbl functions - link_tbl changed to sec4_sg - sg_to_link_tbl_one changed to dma_to_sec4_sg_one, since no scatterlist is use 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>
* crypto: caam - refactor key_gen, sgYuan Kang2012-06-271-189/+8
| | | | | | | | create separate files for split key generation and scatterlist functions. 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>
* crypto: caam - remove jr register/deregisterYuan Kang2012-06-271-28/+2
| | | | | | | | | remove caam_jr_register and caam_jr_deregister to allow sharing of job rings. 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>
* crypto: caam - support external seq in/out lengthsYuan Kang2012-06-271-2/+3
| | | | | | | | | | | | | | functions for external storage of seq in/out lengths, i.e., for 32-bit lengths. These type-dependent functions automatically determine whether to store the length internally (embedded in the command header word) or externally (after the address pointer), based on size of the type given. 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>
* crypto: caam - remove line continuations from ablkcipher_append_src_dstKim Phillips2012-06-271-5/+5
| | | | | | | presumably leftovers from possible macro development. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - add backward compatible string sec4.0Shengzhou Liu2012-03-291-4/+10
| | | | | | | | | | In some device trees of previous version, there were string "fsl,sec4.0". To be backward compatible with device trees, we have CAAM driver first check "fsl,sec-v4.0", if it fails, then check for "fsl,sec4.0". Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Acked-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - be less noisy on startupKim Phillips2012-01-131-4/+4
| | | | | | | | | | | sha224 and 384 support extends caam noise to 21 lines. Do the same as commit 5b859b6 "crypto: talitos - be less noisy on startup", but for caam, and display: caam ffe300000.crypto: fsl,sec-v4.0 algorithms registered in /proc/crypto Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - add sha224 and sha384 variants to existing AEAD algorithmsHemant Agrawal2012-01-131-0/+115
| | | | | | Signed-off-by: Hemant Agrawal <hemant@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: Add CRYPTO_ALG_KERN_DRIVER_ONLY flagNikos Mavrogiannopoulos2012-01-131-1/+2
| | | | | | | | | | The added CRYPTO_ALG_KERN_DRIVER_ONLY indicates whether a cipher is only available via a kernel driver. If the cipher implementation might be available by using an instruction set or by porting the kernel code, then it must not be set. Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - fix polarity of "propagate error" logicKim Phillips2011-12-201-5/+5
| | | | | | | | 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>
* crypto: caam - add support for MD5 algorithm variantsKim Phillips2011-11-211-0/+57
| | | | | | | | | | | 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>
* crypto: caam - ablkcipher supportYuan Kang2011-07-151-0/+510
| | | | | | | | | 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>
* crypto: caam - faster aead implementationYuan Kang2011-07-151-329/+775
| | | | | | | | | | | | | | | 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>
* crypto: caam - structure renamingYuan Kang2011-07-151-21/+43
| | | | | | | | | | | | 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>
* crypto: caam - shorter namesYuan Kang2011-07-151-137/+137
| | | | | | | | | | | | | | "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>
* crypto: caam - fix operator precedence in shared descriptor allocationKim Phillips2011-06-301-3/+3
| | | | | | | | | | 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>
* crypto: caam - add support for sha512 variants of existing AEAD algorithmsKim Phillips2011-05-191-13/+106
| | | | | | | | | | | | 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>
* crypto: caam - remove unused authkeylen from caam_ctxKim Phillips2011-05-191-2/+0
| | | | | Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - fix decryption shared vs. non-shared key settingKim Phillips2011-05-191-4/+22
| | | | | | | | | | | | | | | | | | | | | | 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>
* crypto: caam - fix printk recursion for long error textsKim Phillips2011-05-041-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | during recent descriptor development, an Invalid Sequence Command error triggered a: BUG: recent printk recursion! due to insufficient memory allocated for the error text. The Invalid Sequence Command error text is the longest. The length of the maximum error string is computed as the sum of: "DECO: ": 6 "jump tgt desc idx 255: ": 23 Invalid Sequence Command text: 272 zero termination character: 1 i.e, 302 characters. Define this maximum error string length in error.h and fix caam_jr_strstatus callsites. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - remove unused keylen from session contextKim Phillips2011-05-041-2/+0
| | | | | Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - remove duplicate dev_errKim Phillips2011-05-031-1/+0
| | | | | | | | keep the hex error value reporting version (a) to be consistent with decrypt_done(), and (b) to keep our hardware guys happy. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - remove WAIT-FOR-COMPLETIONs from givencrypt descriptorKim Phillips2011-05-031-4/+2
| | | | | | | remains from descriptor debugging - not required for normal operation. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - introduce missing kfreeJulia Lawall2011-04-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Error handling code following a kmalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - dereferencing ERR_PTR on allocation failureDan Carpenter2011-03-271-1/+1
| | | | | | | | t_alg is an ERR_PTR here so we can't dereference it. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - standardize device tree naming convention to utilize '-vX.Y'Kim Phillips2011-03-271-2/+2
| | | | | | | | | | | | | | | | Help clarify that the number trailing in compatible nomenclature is the version number of the device, i.e., change: "fsl,p4080-sec4.0", "fsl,sec4.0"; to: "fsl,p4080-sec-v4.0", "fsl,sec-v4.0"; Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Kumar Gala <kumar.gala@freescale.com> Cc: Steve Cornelius <sec@pobox.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - Add support for the Freescale SEC4/CAAMKim Phillips2011-03-271-0/+1163
The SEC4 supercedes the SEC2.x/3.x as Freescale's Integrated Security Engine. Its programming model is incompatible with all prior versions of the SEC (talitos). The SEC4 is also known as the Cryptographic Accelerator and Assurance Module (CAAM); this driver is named caam. This initial submission does not include support for Data Path mode operation - AEAD descriptors are submitted via the job ring interface, while the Queue Interface (QI) is enabled for use by others. Only AEAD algorithms are implemented at this time, for use with IPsec. Many thanks to the Freescale STC team for their contributions to this driver. Signed-off-by: Steve Cornelius <sec@pobox.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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