linux-stable.git/crypto/tcrypt.c, branch v4.16.2

crypto: tcrypt - free xoutbuf instead of axbuf

2018-01-12T12:03:07+00:00

There seems to be a cut-n-paste bug with the name of the buffer being
free'd, xoutbuf should be used instead of axbuf.

Detected by CoverityScan, CID#1463420 ("Copy-paste error")

Fixes: 427988d981c4 ("crypto: tcrypt - add multibuf aead speed test")
Signed-off-by: Colin Ian King 
Signed-off-by: Herbert Xu

crypto: tcrypt - fix spelling mistake: "bufufer"-> "buffer"

2018-01-12T12:03:06+00:00

Trivial fix to spelling mistakes in pr_err error message text.

Signed-off-by: Colin Ian King 
Signed-off-by: Herbert Xu

crypto: tcrypt - add multibuf aead speed test

2017-12-28T06:56:42+00:00

The performance of some aead tfm providers is affected by
the amount of parallelism possible with the processing.

Introduce an async aead concurrent multiple buffer
processing speed test to be able to test performance of such
tfm providers.

Signed-off-by: Gilad Ben-Yossef 
Signed-off-by: Herbert Xu

crypto: tcrypt - add multibuf skcipher speed test

2017-12-28T06:56:41+00:00

The performance of some skcipher tfm providers is affected by
the amount of parallelism possible with the processing.

Introduce an async skcipher concurrent multiple buffer
processing speed test to be able to test performance of such
tfm providers.

Signed-off-by: Gilad Ben-Yossef 
Signed-off-by: Herbert Xu

crypto: tcrypt - add multi buf ahash jiffies test

2017-12-28T06:56:41+00:00

The multi buffer concurrent requests ahash speed test only
supported the cycles mode. Add support for the so called
jiffies mode that test performance of bytes/sec.

We only add support for digest mode at the moment.

Signed-off-by: Gilad Ben-Yossef 
Signed-off-by: Herbert Xu

crypto: tcrypt - allow setting num of bufs

2017-12-28T06:56:40+00:00

For multiple buffers speed tests, the number of buffers, or
requests, used actually sets the level of parallelism a tfm
provider may utilize to hide latency. The existing number
(of 8) is good for some software based providers but not
enough for many HW providers with deep FIFOs.

Add a module parameter that allows setting the number of
multiple buffers/requests used, leaving the default at 8.

Signed-off-by: Gilad Ben-Yossef 
Signed-off-by: Herbert Xu

crypto: tcrypt - fix AEAD decryption speed test

2017-12-28T06:56:39+00:00

The AEAD speed test pretended to support decryption, however that support
was broken as decryption requires a valid auth field which the test did
not provide.

Fix this by running the encryption path once with inout/output sgls
switched to calculate the auth field prior to performing decryption
speed tests.

Signed-off-by: Gilad Ben-Yossef 
Signed-off-by: Herbert Xu

crypto: tcrypt - use multi buf for ahash mb test

2017-12-28T06:56:39+00:00

The multi buffer ahash speed test was allocating multiple
buffers for use with the multiple outstanding requests
it was starting but never actually using them (except
to free them), instead using a different single statically
allocated buffer for all requests.

Fix this by actually using the allocated buffers for the test.

It is noted that it may seem tempting to instead remove the
allocation and free of the multiple buffers and leave things as
they are since this is a hash test where the input is read
only. However, after consideration I believe that multiple
buffers better reflect real life scenario with regard
to data cache and TLB behaviours etc.

Signed-off-by: Gilad Ben-Yossef 
Signed-off-by: Herbert Xu

crypto: tcrypt - set assoc in sg_init_aead()

2017-11-29T06:33:26+00:00

Results better code readability.

Signed-off-by: Tudor Ambarus 
Reviewed-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: tcrypt - fix S/G table for test_aead_speed()

2017-11-29T05:43:40+00:00

In case buffer length is a multiple of PAGE_SIZE,
the S/G table is incorrectly generated.
Fix this by handling buflen = k * PAGE_SIZE separately.

Signed-off-by: Robert Baronescu 
Signed-off-by: Herbert Xu