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Change control knob for /dev/crypto to only allow requests which 

will be hardware-accelerated. Avoids copyin()/copyout() overhead and
spending exceessive tie inside the kernel.

Pullup after: 24 hours, or confirmation by Jason Thorpe that this is the
consensus tech-kern agreed upon last summer.
This commit is contained in:
jonathan 2004-04-29 02:17:36 +00:00
parent e2d2459f58
commit a9d00c0805
1 changed files with 3 additions and 3 deletions
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6
sys/opencrypto/crypto.c
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@ -1,4 +1,4 @@
/* $NetBSD: crypto.c,v 1.8 2003/12/31 16:44:26 jonathan Exp $ */
/* $NetBSD: crypto.c,v 1.9 2004/04/29 02:17:36 jonathan Exp $ */
/* $FreeBSD: src/sys/opencrypto/crypto.c,v 1.4.2.5 2003/02/26 00:14:05 sam Exp $ */
/* $OpenBSD: crypto.c,v 1.41 2002/07/17 23:52:38 art Exp $ */
@ -24,7 +24,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: crypto.c,v 1.8 2003/12/31 16:44:26 jonathan Exp $");
__KERNEL_RCSID(0, "$NetBSD: crypto.c,v 1.9 2004/04/29 02:17:36 jonathan Exp $");
/* XXX FIXME: should be defopt'ed */
#define CRYPTO_TIMING /* enable cryptop timing stuff */
@ -117,7 +117,7 @@ int crypto_userasymcrypto = 1; /* userland may do asym crypto reqs */
* crypto_devallowsoft > 0: Allow user requests only for transforms which
* are hardware-accelerated.
*/
int crypto_devallowsoft = 0; /* only use hardware crypto for asym */
int crypto_devallowsoft = 1; /* only use hardware crypto */
#ifdef __FreeBSD__
SYSCTL_INT(_kern, OID_AUTO, usercrypto, CTLFLAG_RW,