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From: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Subject: [PATCH 0/4] crypto: iaa - rework the WQ selection tables
Date: Mon, 19 Oct 2026 16:06:19 -0700
Message-Id: <20261019-iaa-crypto-wq-tables-v1-0-fab67b2a1538@intel.com>
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To: Kristen Accardi <kristen.c.accardi@intel.com>, 
 Herbert Xu <herbert@gondor.apana.org.au>, 
 "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, 
 Vinicius Costa Gomes <vinicius.gomes@intel.com>

iaa_crypto maps each CPU to a single IAA device through a flat CPU
index, which ignores packages (where the actual IAA devices live) and
leaves other IAA devices in the package idle.

Patches 1-2 make the request carry the IAA workqueue
representation ('iaa_wq') it holds a reference on, instead of looking
it up again. Patch 3 replaces the per-CPU WQ table with per-package
tables published with RCU, and patch 4 keeps each CPU on one WQ for
decompression.

Patches 1-3 are meant more of a simplification, to make the code
easier to reason about. Patch 4 is "low hanging" optimization (because
decompressions are very fast, they benefit when the same CPU uses the
same engine). Future work will introduce more complex optimizations.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
---
Vinicius Costa Gomes (4):
      crypto: iaa - carry the iaa_wq in the request
      crypto: iaa - take the WQ from the request in the submit helpers
      crypto: iaa - use RCU per-package WQ tables
      crypto: iaa - keep each CPU on one WQ for decompression

 drivers/crypto/intel/iaa/iaa_crypto.h      |   7 -
 drivers/crypto/intel/iaa/iaa_crypto_main.c | 393 ++++++++++++-----------------
 2 files changed, 157 insertions(+), 243 deletions(-)
---
base-commit: 178aff4cf425b3fc51ff09c571fa1bfbc1eb8ea4
base-tree: git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
change-id: 20261008-iaa-crypto-wq-tables-4e5911143017

Best regards,
--  
Vinicius