linux-kernel - [PATCH 0/5] Remove CRYPTO_ALG_ALLOCATES

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Message-Id: <20230523153421.1528359-1-meenakshi.aggarwal@nxp.com>
Date:   Tue, 23 May 2023 17:34:16 +0200
From:   meenakshi.aggarwal@....com
To:     horia.geanta@....com, V.sethi@....com, pankaj.gupta@....com,
        gaurav.jain@....com, herbert@...dor.apana.org.au,
        davem@...emloft.net, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org, iuliana.prodan@....com
Cc:     Meenakshi Aggarwal <meenakshi.aggarwal@....com>
Subject: [PATCH 0/5] Remove CRYPTO_ALG_ALLOCATES_MEMORY flag

From: Meenakshi Aggarwal <meenakshi.aggarwal@....com>

This series includes patches to remove CRYPTO_ALG_ALLOCATES_MEMORY flag
and allocate the required memory within the crypto request object.

CRYPTO_ALG_ALLOCATES_MEMORY flag is limited only to dm-crypt use-cases,
which seems to be 4 entries maximum.
Therefore in reqsize we allocate memory for maximum 4 entries
for src and 1 for IV, and the same for dst, both aligned.
If the driver needs more than the 4 entries maximum, the memory
is dynamically allocated, at runtime.

Meenakshi Aggarwal (5):
  crypto:caam - avoid allocating memory at crypto request runtime for
    skcipher
  crypto:caam - avoid allocating memory at crypto request runtime for
    aead
  crypto: caam - avoid allocating memory at crypto request runtime for
    hash
  crypto: caam/qi - avoid allocating memory at crypto request runtime
  crypto: caam/qi2 - avoid allocating memory at crypto request runtime

 drivers/crypto/caam/caamalg.c     | 138 +++++++---
 drivers/crypto/caam/caamalg_qi.c  | 131 +++++++---
 drivers/crypto/caam/caamalg_qi2.c | 421 ++++++++++++++++++++----------
 drivers/crypto/caam/caamalg_qi2.h |   6 +
 drivers/crypto/caam/caamhash.c    |  77 ++++--
 5 files changed, 542 insertions(+), 231 deletions(-)

-- 
2.25.1