From: Martin Hicks Subject: [PATCH 0/5] crypto: talitos: Add crypto async queue handling Date: Fri, 20 Feb 2015 11:21:11 -0500 Message-ID: <1424449276-5288-1-git-send-email-mort@bork.org> Cc: linuxppc-dev@lists.ozlabs.org, linux-crypto@vger.kernel.org, Martin Hicks To: Kim Phillips , Scott Wood , Kumar Gala Return-path: Received: from mail-ig0-f169.google.com ([209.85.213.169]:36201 "EHLO mail-ig0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752004AbbBTQVp (ORCPT ); Fri, 20 Feb 2015 11:21:45 -0500 Received: by mail-ig0-f169.google.com with SMTP id hl2so8098501igb.0 for ; Fri, 20 Feb 2015 08:21:45 -0800 (PST) Sender: linux-crypto-owner@vger.kernel.org List-ID: I was testing dm-crypt performance with a Freescale P1022 board with a recent kernel and was getting IO errors while doing testing with LUKS. Investigation showed that all hardware FIFO slots were filling and the driver was returning EAGAIN to the block layer, which is not an expected response for an async crypto implementation. The following patch series adds a few small fixes, and reworks the submission path to use the crypto_queue mechanism to handle the request backlog. Martin Hicks (5): crypto: talitos: Simplify per-channel initialization crypto: talitos: Remove MD5_BLOCK_SIZE crypto: talitos: Fix off-by-one and use all hardware slots crypto: talitos: Reorganize request submission data structures crypto: talitos: Add software backlog queue handling drivers/crypto/talitos.c | 189 ++++++++++++++++++++++++---------------------- drivers/crypto/talitos.h | 44 +++++++++-- 2 files changed, 137 insertions(+), 96 deletions(-) -- 1.7.10.4