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2009-01-05async_tx, dmaengine: document channel allocation and api reworkDan Williams1-52/+44
"Wouldn't it be better if the dmaengine layer made sure it didn't pass the same channel several times to a client? I mean, you seem concerned that the memcpy() API should be transparent and easy to use, but the whole registration interface is just ridiculously complicated..." - Haavard The dmaengine and async_tx registration/allocation interface is indeed needlessly complicated. This redesign has the following goals: 1/ Simplify reference counting: dma channels are not something one would expect to be hotplugged, it should be an exceptional event handled by drivers not something clients should be mandated to handle in a callback. The common case channel removal event is 'rmmod <dma driver>', which for simplicity should be disallowed if the channel is in use. 2/ Add an interface for requesting exclusive access to a channel suitable to device-to-memory users. 3/ Convert all memory-to-memory users over to a common allocator, the goal here is to not have competing channel allocation schemes. The only competition should be between device-to-memory exclusive allocations and the memory-to-memory usage case where channels are shared between multiple "clients". Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Neil Brown <neilb@suse.de> Cc: Jeff Garzik <jeff@garzik.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-01-11[CRYPTO] doc: Update api-intro.txtHerbert Xu1-25/+16
This patch updates the list of transforms we support and clarifies that the Block Ciphers interface in fact supports all ciphers including stream ciphers. It also removes the obsolete Configuration Notes section and adds the linux-crypto mailing list as the primary bug reporting address. Finally it documents the fact that setkey should only be called from user context. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-09-24async_tx: usage documentation and developer notes (v2)Dan Williams1-0/+219
Changes in v2: * cleanups from Randy and Shannon Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Reviewed-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2007-05-09documentation: convert the Documentation directory to UTF-8John Anthony Kazos Jr1-3/+3
Convert files within the Documentation directory to UTF-8. Adrian Bunk: small additional fixes Signed-off-by: John Anthony Kazos Jr. <jakj@j-a-k-j.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-03-21[CRYPTO] doc: Fix typo in hash exampleJohannes Schlumberger1-1/+1
there is a tiny bug in Documentation/crypto/api-intro.txt. The file has the following example code: struct scatterlist sg[2]; [...] if (crypto_hash_digest(&desc, &sg, 2, result)) which does not match the declaration of crypto_hash_digest() in include/linux/crypto.h. (static inline int crypto_hash_digest(struct hash_desc *desc, struct scatterlist *sg, unsigned int nbytes, u8 *out) The code in the example passes the address of a pointer (an array actually) as the second argument, while the function expects the pointer itself. I have attached a patch to fix this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-02-07[CRYPTO] doc: added the developer of Camellia cipherNoriaki TAKAMIYA1-0/+4
This patch adds the developer of Camellia cipher algorithm. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21[CRYPTO] doc: Update documentation for hash and meHerbert Xu1-14/+22
This patch updates the documentation to reflect the switch from digest to hash. It also replaces notes about emailing James Morris to refer to me instead. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2005-09-10[PATCH] Spelling fixes for Documentation/Tobias Klauser1-1/+1
The attached patch fixes the following spelling errors in Documentation/ - double "the" - Several misspellings of function/functionality - infomation - memeory - Recieved - wether and possibly others which I forgot ;-) Trailing whitespaces on the same line as the typo are also deleted. Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-01[CRYPTO]: Fix XTEA implementationAaron Grothe1-0/+1
The XTEA implementation was incorrect due to a misinterpretation of operator precedence. Because of the wide-spread nature of this error, the erroneous implementation will be kept, albeit under the new name of XETA. Signed-off-by: Aaron Grothe <ajgrothe@yahoo.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2-0/+596
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!