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Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

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* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (39 commits)
  random: Reorder struct entropy_store to remove padding on 64bits
  padata: update API documentation
  padata: Remove padata_get_cpumask
  crypto: pcrypt - Update pcrypt cpumask according to the padata cpumask notifier
  crypto: pcrypt - Rename pcrypt_instance
  padata: Pass the padata cpumasks to the cpumask_change_notifier chain
  padata: Rearrange set_cpumask functions
  padata: Rename padata_alloc functions
  crypto: pcrypt - Dont calulate a callback cpu on empty callback cpumask
  padata: Check for valid cpumasks
  padata: Allocate cpumask dependend recources in any case
  padata: Fix cpu index counting
  crypto: geode_aes - Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used)
  pcrypt: Added sysfs interface to pcrypt
  padata: Added sysfs primitives to padata subsystem
  padata: Make two separate cpumasks
  padata: update documentation
  padata: simplify serialization mechanism
  padata: make padata_do_parallel to return zero on success
  padata: Handle empty padata cpumasks
  ...
This commit is contained in:
Linus Torvalds
2010-08-04 15:23:14 -07:00
parent ffd386a9a8 4015d9a865
commit b7c8e55db7
23 changed files with 1311 additions and 712 deletions
Download Patch File Download Diff File Expand all files Collapse all files

75
drivers/crypto/talitos.c
View File

@ -720,7 +720,6 @@ struct talitos_ctx {
#define TALITOS_MDEU_MAX_CONTEXT_SIZE TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512
struct talitos_ahash_req_ctx {
u64 count;
u32 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE / sizeof(u32)];
unsigned int hw_context_size;
u8 buf[HASH_MAX_BLOCK_SIZE];
@ -729,6 +728,7 @@ struct talitos_ahash_req_ctx {
unsigned int first;
unsigned int last;
unsigned int to_hash_later;
u64 nbuf;
struct scatterlist bufsl[2];
struct scatterlist *psrc;
};
@ -1613,6 +1613,7 @@ static void ahash_done(struct device *dev,
if (!req_ctx->last && req_ctx->to_hash_later) {
/* Position any partial block for next update/final/finup */
memcpy(req_ctx->buf, req_ctx->bufnext, req_ctx->to_hash_later);
req_ctx->nbuf = req_ctx->to_hash_later;
}
common_nonsnoop_hash_unmap(dev, edesc, areq);
@ -1728,7 +1729,7 @@ static int ahash_init(struct ahash_request *areq)
struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
/* Initialize the context */
req_ctx->count = 0;
req_ctx->nbuf = 0;
req_ctx->first = 1; /* first indicates h/w must init its context */
req_ctx->swinit = 0; /* assume h/w init of context */
req_ctx->hw_context_size =
@ -1776,52 +1777,54 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
unsigned int nbytes_to_hash;
unsigned int to_hash_later;
unsigned int index;
unsigned int nsg;
int chained;
index = req_ctx->count & (blocksize - 1);
req_ctx->count += nbytes;
if (!req_ctx->last && (index + nbytes) < blocksize) {
/* Buffer the partial block */
if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) {
/* Buffer up to one whole block */
sg_copy_to_buffer(areq->src,
sg_count(areq->src, nbytes, &chained),
req_ctx->buf + index, nbytes);
req_ctx->buf + req_ctx->nbuf, nbytes);
req_ctx->nbuf += nbytes;
return 0;
}
if (index) {
/* partial block from previous update; chain it in. */
sg_init_table(req_ctx->bufsl, (nbytes) ? 2 : 1);
sg_set_buf(req_ctx->bufsl, req_ctx->buf, index);
if (nbytes)
scatterwalk_sg_chain(req_ctx->bufsl, 2,
areq->src);
/* At least (blocksize + 1) bytes are available to hash */
nbytes_to_hash = nbytes + req_ctx->nbuf;
to_hash_later = nbytes_to_hash & (blocksize - 1);
if (req_ctx->last)
to_hash_later = 0;
else if (to_hash_later)
/* There is a partial block. Hash the full block(s) now */
nbytes_to_hash -= to_hash_later;
else {
/* Keep one block buffered */
nbytes_to_hash -= blocksize;
to_hash_later = blocksize;
}
/* Chain in any previously buffered data */
if (req_ctx->nbuf) {
nsg = (req_ctx->nbuf < nbytes_to_hash) ? 2 : 1;
sg_init_table(req_ctx->bufsl, nsg);
sg_set_buf(req_ctx->bufsl, req_ctx->buf, req_ctx->nbuf);
if (nsg > 1)
scatterwalk_sg_chain(req_ctx->bufsl, 2, areq->src);
req_ctx->psrc = req_ctx->bufsl;
} else {
} else
req_ctx->psrc = areq->src;
}
nbytes_to_hash = index + nbytes;
if (!req_ctx->last) {
to_hash_later = (nbytes_to_hash & (blocksize - 1));
if (to_hash_later) {
int nents;
/* Must copy to_hash_later bytes from the end
* to bufnext (a partial block) for later.
*/
nents = sg_count(areq->src, nbytes, &chained);
sg_copy_end_to_buffer(areq->src, nents,
req_ctx->bufnext,
to_hash_later,
nbytes - to_hash_later);
/* Adjust count for what will be hashed now */
nbytes_to_hash -= to_hash_later;
}
req_ctx->to_hash_later = to_hash_later;
if (to_hash_later) {
int nents = sg_count(areq->src, nbytes, &chained);
sg_copy_end_to_buffer(areq->src, nents,
req_ctx->bufnext,
to_hash_later,
nbytes - to_hash_later);
}
req_ctx->to_hash_later = to_hash_later;
/* allocate extended descriptor */
/* Allocate extended descriptor */
edesc = ahash_edesc_alloc(areq, nbytes_to_hash);
if (IS_ERR(edesc))
return PTR_ERR(edesc);