1
linux/drivers/crypto
Kim Phillips fe5720e2b7 crypto: talitos - Perform auth check in h/w if on sec 2.1 and above
SEC version 2.1 and above adds the capability to do the IPSec ICV
memcmp in h/w. Results of the cmp are written back in the descriptor
header, along with the done status.  A new callback is added that
checks these ICCR bits instead of performing the memcmp on the core,
and is enabled by h/w capability.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

After testing on different parts, another condition was added
before using h/w auth check because different
SEC revisions require different handling.

The SEC 3.0 allows a more flexible link table where
the auth data can span separate link table entries.
The SEC 2.4/2.1 does not support this case.
So a test was added in the decrypt routine
for a fragmented case; the h/w auth check is disallowed for
revisions not having the extent in the link table;
in this case the hw auth check is done by software.

A portion of a previous change for SEC 3.0 link table handling
was removed since it became dead code with the hw auth check supported.

This seems to be the best compromise for using hw auth check
on supporting SEC revisions; it keeps the link table logic
simpler for the fragmented cases.

Signed-off-by: Lee Nipper <lee.nipper@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:01:12 +11:00
..
geode-aes.c [CRYPTO] geode: Add __dev{init,exit} annotations 2008-01-11 08:16:38 +11:00
geode-aes.h [CRYPTO] geode: do not copy the IV too often 2008-01-11 08:16:26 +11:00
hifn_795x.c crypto: hifn - Disable driver when physical size exceeds 32 bits 2008-12-25 11:01:07 +11:00
ixp4xx_crypto.c [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
Kconfig crypto: ixp4xx - Select CRYPTO_AUTHENC 2008-07-13 20:12:11 +08:00
Makefile crypto: ixp4xx - Hardware crypto support for IXP4xx CPUs 2008-07-10 20:35:16 +08:00
padlock-aes.c crypto: padlock - fix VIA PadLock instruction usage with irq_ts_save/restore() 2008-08-13 22:02:26 +10:00
padlock-sha.c crypto: padlock - fix VIA PadLock instruction usage with irq_ts_save/restore() 2008-08-13 22:02:26 +10:00
padlock.h
talitos.c crypto: talitos - Perform auth check in h/w if on sec 2.1 and above 2008-12-25 11:01:12 +11:00
talitos.h crypto: talitos - Perform auth check in h/w if on sec 2.1 and above 2008-12-25 11:01:12 +11:00