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Currently, conversion of SW S/G table into HW S/G layout relies on
nents returned by sg_nents_for_len(sg, len).
However this leaves the possibility of HW S/G referencing more data
then needed: since buffer length in HW S/G entries is filled using
sg_dma_len(sg), the last entry in HW S/G table might have a length
that is bigger than needed for the crypto request.
This way of S/G table conversion is fine, unless after converting a table
more entries have to be appended to the HW S/G table.
In this case, crypto engine would access data from the S/G entry having
the incorrect length, instead of advancing in the S/G table.
This situation doesn't exist, but the upcoming implementation of
IV update for skcipher algorithms needs to add a S/G entry after
req->dst S/G (corresponding to output IV).
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Previously, a tree-wide change added SPDX license identifiers to
files lacking licensing information:
b24413180f56 ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license")
To be consistent update the rest of the files:
-files with license specified by means of MODULE_LICENSE()
-files with complete license text
-Kconfig
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add support to submit ablkcipher and authenc algorithms
via the QI backend:
-ablkcipher:
cbc({aes,des,des3_ede})
ctr(aes), rfc3686(ctr(aes))
xts(aes)
-authenc:
authenc(hmac(md5),cbc({aes,des,des3_ede}))
authenc(hmac(sha*),cbc({aes,des,des3_ede}))
caam/qi being a new driver, let's wait some time to settle down without
interfering with existing caam/jr driver.
Accordingly, for now all caam/qi algorithms (caamalg_qi module) are
marked to be of lower priority than caam/jr ones (caamalg module).
Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: Alex Porosanu <alexandru.porosanu@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Horia Geantă