From nobody Mon Feb 9 06:50:52 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A6A5E1F75A6; Sun, 25 Jan 2026 03:36:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769312174; cv=none; b=kuYnbT4ev+h8LwuFpkVCY9PWvHnwcdWuU7BOXUVCbdqSlDpsHWl+3LyszQvwkuS6cDt8FoX3F8jpHoo0Ph7XIoeJ99XGdths3hgK6hyt7hiVIBKAh5b86O6oltbkcJNOKuB6nS03vPKjW1i0DACBxFpywYz5NzkpFBoDSdSNSrA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769312174; c=relaxed/simple; bh=BTzto9LJZ4dLalRZ5djoz1jmTvw0aNZ/Qf035G+8x48=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Lg+Cg8R50yhvpyj5TqNGHeYLIYOM0n1OdiInQDgXlQBNzifMorZqSOt7OuLC0+oT9KbGQaTfA9F19gU4t6ZrhMIJI3476pRJBZYf9NY9FjxLiQmcd/oSw69kL7KBkQe9XONI8eHmKdloZ8URAhzxU/KY0UdVwWgcVX2JDmWqYyE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=imjyim9m; arc=none smtp.client-ip=192.198.163.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="imjyim9m" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1769312172; x=1800848172; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=BTzto9LJZ4dLalRZ5djoz1jmTvw0aNZ/Qf035G+8x48=; b=imjyim9mv//8z4MWJIbiVM+Vhf6G/ckGuihs+CAcPhToZpopBjuXFsbi SbNGWGrBfBXWjDQzR/jgH2HwyG6EAmIpdxDKgTpMQpztrU1gnDgJGNwg+ YOUVNs/dVM0Bqv2hUwApe1+2JaFmVEd8bnn9zSf7LoKp1OIBZXTV/Puoe NS1GFdbHWXRo9LG+0n6okVgkeTnzFKYZr6mICS1f6yT9ggNGW/Any4fkY DaxUmaNcQfNVcI9Wo/BjWWvs3nzM40OH5/2gpNMHB+u8Qi5CH3RfGbIVK f1iE30ThdPjqkW5TAxQFSMXgD0YxuJv/Is+Ph+c8m9JrOo+W54sghsYHu w==; X-CSE-ConnectionGUID: CSYlkDMqRvWT4D3fzuAFSg== X-CSE-MsgGUID: 273H3JUmQYK8MbF4zy78bA== X-IronPort-AV: E=McAfee;i="6800,10657,11681"; a="81887603" X-IronPort-AV: E=Sophos;i="6.21,252,1763452800"; d="scan'208";a="81887603" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2026 19:36:08 -0800 X-CSE-ConnectionGUID: asSjYB5sRwCnHWdNtxnXag== X-CSE-MsgGUID: KwOt10VzRiyXQir+QElPeQ== X-ExtLoop1: 1 Received: from jf5300-b11a338t.jf.intel.com ([10.242.51.115]) by fmviesa003.fm.intel.com with ESMTP; 24 Jan 2026 19:36:06 -0800 From: Kanchana P Sridhar To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, hannes@cmpxchg.org, yosry.ahmed@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, usamaarif642@gmail.com, ryan.roberts@arm.com, 21cnbao@gmail.com, ying.huang@linux.alibaba.com, akpm@linux-foundation.org, senozhatsky@chromium.org, sj@kernel.org, kasong@tencent.com, linux-crypto@vger.kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, clabbe@baylibre.com, ardb@kernel.org, ebiggers@google.com, surenb@google.com, kristen.c.accardi@intel.com, vinicius.gomes@intel.com, giovanni.cabiddu@intel.com Cc: wajdi.k.feghali@intel.com, kanchana.p.sridhar@intel.com Subject: [PATCH v14 20/26] crypto: iaa - Disable iaa_verify_compress by default. Date: Sat, 24 Jan 2026 19:35:31 -0800 Message-Id: <20260125033537.334628-21-kanchana.p.sridhar@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20260125033537.334628-1-kanchana.p.sridhar@intel.com> References: <20260125033537.334628-1-kanchana.p.sridhar@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This patch makes it easier for IAA hardware acceleration in the iaa_crypto driver to be loaded by default with "iaa_verify_compress" disabled, to facilitate performance comparisons with software compressors (which also do not run compress verification by default). Earlier, iaa_crypto compress verification used to be enabled by default. The iaa_crypto driver documentation has been updated with this change. With this patch, if users want to enable compress verification, they can do so with these steps: 1) disable all the IAA device/wq bindings that happen at boot time 2) rmmod iaa_crypto 3) modprobe iaa_crypto 4) echo 1 > /sys/bus/dsa/drivers/crypto/verify_compress 5) re-run initialization of the IAA devices and wqs Signed-off-by: Kanchana P Sridhar --- Documentation/driver-api/crypto/iaa/iaa-crypto.rst | 2 +- drivers/crypto/intel/iaa/iaa_crypto_main.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/driver-api/crypto/iaa/iaa-crypto.rst b/Documenta= tion/driver-api/crypto/iaa/iaa-crypto.rst index d5e610ef4612..81a7dbd15f8b 100644 --- a/Documentation/driver-api/crypto/iaa/iaa-crypto.rst +++ b/Documentation/driver-api/crypto/iaa/iaa-crypto.rst @@ -239,7 +239,7 @@ The available attributes are: =20 echo 0 > /sys/bus/dsa/drivers/crypto/verify_compress =20 - The default setting is '1' - verify all compresses. + The default setting is '0' - to not verify compresses. =20 - sync_mode =20 diff --git a/drivers/crypto/intel/iaa/iaa_crypto_main.c b/drivers/crypto/in= tel/iaa/iaa_crypto_main.c index f6e18f458fbf..7bc4a80bd68b 100644 --- a/drivers/crypto/intel/iaa/iaa_crypto_main.c +++ b/drivers/crypto/intel/iaa/iaa_crypto_main.c @@ -121,7 +121,7 @@ static bool iaa_distribute_decomps; static bool iaa_distribute_comps =3D true; =20 /* Verify results of IAA compress or not */ -static bool iaa_verify_compress =3D true; +static bool iaa_verify_compress; =20 /* * The iaa crypto driver supports three 'sync' methods determining how --=20 2.27.0