From patchwork Mon Oct 12 20:38:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 269560 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AEBB2C433E7 for ; Mon, 12 Oct 2020 20:39:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7FFED2145D for ; Mon, 12 Oct 2020 20:39:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730664AbgJLUjf (ORCPT ); Mon, 12 Oct 2020 16:39:35 -0400 Received: from mga09.intel.com ([134.134.136.24]:34024 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730636AbgJLUjf (ORCPT ); Mon, 12 Oct 2020 16:39:35 -0400 IronPort-SDR: ReHo/Mu8KFQEeFlIrhOeMca7QUKDK93Y4saPXr16IAHQ6nOY/1NRd+6E8s3bP/aRfMP3RB+QMm hQ2jpI28YNsQ== X-IronPort-AV: E=McAfee;i="6000,8403,9772"; a="165913143" X-IronPort-AV: E=Sophos;i="5.77,367,1596524400"; d="scan'208";a="165913143" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2020 13:39:35 -0700 IronPort-SDR: /N/o9DxB8r8bdZKCK4ZMxDOdLBC6Qiboox3szO14i7vgMy3GxOB2LBczPheQgp6/TDfVa5jbtf PfRdt7JxzRqQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,367,1596524400"; d="scan'208";a="299328210" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.51]) by fmsmga007.fm.intel.com with ESMTP; 12 Oct 2020 13:39:33 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, Giovanni Cabiddu , Wojciech Ziemba , Fiona Trahe , Andy Shevchenko Subject: [PATCH 17/31] crypto: qat - register crypto instances based on capability Date: Mon, 12 Oct 2020 21:38:33 +0100 Message-Id: <20201012203847.340030-18-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201012203847.340030-1-giovanni.cabiddu@intel.com> References: <20201012203847.340030-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Introduce the function adf_hw_dev_has_crypto() that returns true if a device supports symmetric crypto, asymmetric crypto and authentication services. If a device has crypto capabilities, add crypto instances to the configuration. This is done since the function that allows to retrieve crypto instances, qat_crypto_get_instance_node(), return instances that support all crypto services. Signed-off-by: Giovanni Cabiddu Reviewed-by: Wojciech Ziemba Reviewed-by: Fiona Trahe Reviewed-by: Andy Shevchenko --- drivers/crypto/qat/qat_common/qat_crypto.c | 7 ++++++- drivers/crypto/qat/qat_common/qat_crypto.h | 15 +++++++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/qat/qat_common/qat_crypto.c b/drivers/crypto/qat/qat_common/qat_crypto.c index ab621b7dbd20..089d5d7b738e 100644 --- a/drivers/crypto/qat/qat_common/qat_crypto.c +++ b/drivers/crypto/qat/qat_common/qat_crypto.c @@ -117,10 +117,15 @@ int qat_crypto_dev_config(struct adf_accel_dev *accel_dev) { int cpus = num_online_cpus(); int banks = GET_MAX_BANKS(accel_dev); - int instances = min(cpus, banks); char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES]; int i; unsigned long val; + int instances; + + if (adf_hw_dev_has_crypto(accel_dev)) + instances = min(cpus, banks); + else + instances = 0; if (adf_cfg_section_add(accel_dev, ADF_KERNEL_SEC)) goto err; diff --git a/drivers/crypto/qat/qat_common/qat_crypto.h b/drivers/crypto/qat/qat_common/qat_crypto.h index 8d11e94cbf08..b6a4c95ae003 100644 --- a/drivers/crypto/qat/qat_common/qat_crypto.h +++ b/drivers/crypto/qat/qat_common/qat_crypto.h @@ -55,4 +55,19 @@ struct qat_crypto_request { bool encryption; }; +static inline bool adf_hw_dev_has_crypto(struct adf_accel_dev *accel_dev) +{ + struct adf_hw_device_data *hw_device = accel_dev->hw_device; + u32 mask = ~hw_device->accel_capabilities_mask; + + if (mask & ADF_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC) + return false; + if (mask & ADF_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC) + return false; + if (mask & ADF_ACCEL_CAPABILITIES_AUTHENTICATION) + return false; + + return true; +} + #endif