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

Pull crypto fixes from Herbert Xu:
 "This fixes three issues:

   - if ccp is loaded on a machine without ccp, it will incorrectly
     activate causing all requests to fail.  Fixed by preventing ccp
     from loading if hardware isn't available.

   - not all IRQs were enabled for the qat driver, leading to potential
     stalls when it is used

   - disabled buggy AVX CTR implementation in aesni"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: aesni - disable "by8" AVX CTR optimization
  crypto: ccp - Check for CCP before registering crypto algs
  crypto: qat - Enable all 32 IRQs
This commit is contained in:
Linus Torvalds 2014-09-24 09:37:35 -07:00
commit 2368a9426f
5 changed files with 33 additions and 3 deletions

View File

@ -481,7 +481,7 @@ static void ctr_crypt_final(struct crypto_aes_ctx *ctx,
crypto_inc(ctrblk, AES_BLOCK_SIZE);
}
#ifdef CONFIG_AS_AVX
#if 0 /* temporary disabled due to failing crypto tests */
static void aesni_ctr_enc_avx_tfm(struct crypto_aes_ctx *ctx, u8 *out,
const u8 *in, unsigned int len, u8 *iv)
{
@ -1522,7 +1522,7 @@ static int __init aesni_init(void)
aesni_gcm_dec_tfm = aesni_gcm_dec;
}
aesni_ctr_enc_tfm = aesni_ctr_enc;
#ifdef CONFIG_AS_AVX
#if 0 /* temporary disabled due to failing crypto tests */
if (cpu_has_avx) {
/* optimize performance of ctr mode encryption transform */
aesni_ctr_enc_tfm = aesni_ctr_enc_avx_tfm;

View File

@ -367,6 +367,10 @@ static int ccp_crypto_init(void)
{
int ret;
ret = ccp_present();
if (ret)
return ret;
spin_lock_init(&req_queue_lock);
INIT_LIST_HEAD(&req_queue.cmds);
req_queue.backlog = &req_queue.cmds;

View File

@ -54,6 +54,20 @@ static inline void ccp_del_device(struct ccp_device *ccp)
ccp_dev = NULL;
}
/**
* ccp_present - check if a CCP device is present
*
* Returns zero if a CCP device is present, -ENODEV otherwise.
*/
int ccp_present(void)
{
if (ccp_get_device())
return 0;
return -ENODEV;
}
EXPORT_SYMBOL_GPL(ccp_present);
/**
* ccp_enqueue_cmd - queue an operation for processing by the CCP
*

View File

@ -66,7 +66,7 @@
#define ADF_DH895XCC_ETR_MAX_BANKS 32
#define ADF_DH895XCC_SMIAPF0_MASK_OFFSET (0x3A000 + 0x28)
#define ADF_DH895XCC_SMIAPF1_MASK_OFFSET (0x3A000 + 0x30)
#define ADF_DH895XCC_SMIA0_MASK 0xFFFF
#define ADF_DH895XCC_SMIA0_MASK 0xFFFFFFFF
#define ADF_DH895XCC_SMIA1_MASK 0x1
/* Error detection and correction */
#define ADF_DH895XCC_AE_CTX_ENABLES(i) (i * 0x1000 + 0x20818)

View File

@ -26,6 +26,13 @@ struct ccp_cmd;
#if defined(CONFIG_CRYPTO_DEV_CCP_DD) || \
defined(CONFIG_CRYPTO_DEV_CCP_DD_MODULE)
/**
* ccp_present - check if a CCP device is present
*
* Returns zero if a CCP device is present, -ENODEV otherwise.
*/
int ccp_present(void);
/**
* ccp_enqueue_cmd - queue an operation for processing by the CCP
*
@ -53,6 +60,11 @@ int ccp_enqueue_cmd(struct ccp_cmd *cmd);
#else /* CONFIG_CRYPTO_DEV_CCP_DD is not enabled */
static inline int ccp_present(void)
{
return -ENODEV;
}
static inline int ccp_enqueue_cmd(struct ccp_cmd *cmd)
{
return -ENODEV;