Merge branch 'net-tls-Combined-memory-allocation-for-decryption-request'

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Vakul Garg says:

====================
net/tls: Combined memory allocation for decryption request

This patch does a combined memory allocation from heap for scatterlists,
aead_request, aad and iv for the tls record decryption path. In present
code, aead_request is allocated from heap, scatterlists on a conditional
basis are allocated on heap or on stack. This is inefficient as it may
requires multiple kmalloc/kfree.

The initialization vector passed in cryption request is allocated on
stack. This is a problem since the stack memory is not dma-able from
crypto accelerators.

Doing one combined memory allocation for each decryption request fixes
both the above issues. It also paves a way to be able to submit multiple
async decryption requests while the previous one is pending i.e. being
processed or queued.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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David S. Miller 2018-08-13 08:41:09 -07:00

parent 78cbac647e 0b243d004e

commit 8f78004442

2 changed files with 142 additions and 100 deletions

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4

include/net/tls.h

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236

net/tls/tls_sw.c

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