From patchwork Thu Feb 1 15:33:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xin Zeng X-Patchwork-Id: 13541273 X-Patchwork-Delegate: herbert@gondor.apana.org.au Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) (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 CA657626AC; Thu, 1 Feb 2024 15:42:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.55.52.93 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706802141; cv=none; b=CMZScYD2GVsuwYmp6rB8xQxHjjogaj+ndsa79R7UNNWLEaA9en+l2cNCpL3FhKf0fkegsiDDHeHDyQ1AYqA6mxr2ckEu4+VKZcwc/XobFRg1cyoyi+6hrI5+Ymmaslxn2LnLxIITIscJOqOX9o5hb8drPvobUagoGfkVG6fIeuA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706802141; c=relaxed/simple; bh=qREIhdjjgmLHUZ6ryz5BY0f/GWyi04lbYKKlcFezNAk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=CuKyq9FpBcU7pjt2g1F0VcHDL1ULoPmk9oWUxObBgxZV627clf74L1D6rtto3wXS/AJa8HNfrgOIGHHoVM0lEG+vzrzJkv4xxN0SkhYF2afkEKzTrIWHuN5VexsP+5RxegQtXhiBMu89V6kV6CxXT6tyFvuFDAcnHCwf3Hl9pvI= 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=LZ5DZjVR; arc=none smtp.client-ip=192.55.52.93 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="LZ5DZjVR" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706802139; x=1738338139; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=qREIhdjjgmLHUZ6ryz5BY0f/GWyi04lbYKKlcFezNAk=; b=LZ5DZjVRvkieHiqyAYbH3dQ2RQadFl8iMafWgb9j8okDH/zNJEptfhYB 23POQ3CQBEINge72J0pGwF55xijLGlyOOQmC6fhzHDX39rD6+mTaIhWXi oBdPUDNaV4UZp0iNYu7QmGoqY16GCDECIMqkxrCPJuqwXOsu00qUwebY2 8JQXigyz1BWMAYYiMaXXfRHsKvp6AxREhNojeFFNXGinVKuKf7+lkFlhi SEtAaqf1Ed0CIAEZC70Om6LuVXD7aufSsnrllXZfc5JfKaWv7IK2xjknE TjRdzny1H8e0M8Y8dKqSXgR8I6p4jAQEQjvoeGOBGl8m4cyFd4jGWSdRm w==; X-IronPort-AV: E=McAfee;i="6600,9927,10969"; a="401053028" X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="401053028" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2024 07:42:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="133359" Received: from qat-server-archercity1.sh.intel.com ([10.67.111.115]) by orviesa007.jf.intel.com with ESMTP; 01 Feb 2024 07:42:16 -0800 From: Xin Zeng To: herbert@gondor.apana.org.au, alex.williamson@redhat.com, jgg@nvidia.com, yishaih@nvidia.com, shameerali.kolothum.thodi@huawei.com, kevin.tian@intel.com Cc: linux-crypto@vger.kernel.org, kvm@vger.kernel.org, qat-linux@intel.com, Xin Zeng Subject: [PATCH 08/10] crypto: qat - add interface for live migration Date: Thu, 1 Feb 2024 23:33:35 +0800 Message-Id: <20240201153337.4033490-9-xin.zeng@intel.com> X-Mailer: git-send-email 2.18.2 In-Reply-To: <20240201153337.4033490-1-xin.zeng@intel.com> References: <20240201153337.4033490-1-xin.zeng@intel.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Extend the driver with a new interface to be used for VF live migration. This allows to create and destroy a qat_mig_dev object that contains a set of methods to allow to save and restore the state of QAT VF. This interface will be used by the qat-vfio-pci module. Signed-off-by: Xin Zeng Reviewed-by: Giovanni Cabiddu --- drivers/crypto/intel/qat/qat_common/Makefile | 2 +- .../intel/qat/qat_common/adf_accel_devices.h | 2 ++ .../crypto/intel/qat/qat_common/qat_mig_dev.c | 35 +++++++++++++++++++ include/linux/qat/qat_mig_dev.h | 31 ++++++++++++++++ 4 files changed, 69 insertions(+), 1 deletion(-) create mode 100644 drivers/crypto/intel/qat/qat_common/qat_mig_dev.c create mode 100644 include/linux/qat/qat_mig_dev.h diff --git a/drivers/crypto/intel/qat/qat_common/Makefile b/drivers/crypto/intel/qat/qat_common/Makefile index da4d806a9287..05cac8a9e463 100644 --- a/drivers/crypto/intel/qat/qat_common/Makefile +++ b/drivers/crypto/intel/qat/qat_common/Makefile @@ -54,4 +54,4 @@ intel_qat-$(CONFIG_DEBUG_FS) += adf_transport_debug.o \ intel_qat-$(CONFIG_PCI_IOV) += adf_sriov.o adf_vf_isr.o adf_pfvf_utils.o \ adf_pfvf_pf_msg.o adf_pfvf_pf_proto.o \ adf_pfvf_vf_msg.o adf_pfvf_vf_proto.o \ - adf_gen2_pfvf.o adf_gen4_pfvf.o + adf_gen2_pfvf.o adf_gen4_pfvf.o qat_mig_dev.o diff --git a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h index bdb026155f64..0fa52d20c131 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h +++ b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h @@ -9,6 +9,7 @@ #include #include #include +#include #include "adf_cfg_common.h" #include "adf_rl.h" #include "adf_telemetry.h" @@ -325,6 +326,7 @@ struct adf_hw_device_data { struct adf_dev_err_mask dev_err_mask; struct adf_rl_hw_data rl_data; struct adf_tl_hw_data tl_data; + struct qat_migdev_ops vfmig_ops; const char *fw_name; const char *fw_mmp_name; u32 fuses; diff --git a/drivers/crypto/intel/qat/qat_common/qat_mig_dev.c b/drivers/crypto/intel/qat/qat_common/qat_mig_dev.c new file mode 100644 index 000000000000..45520a715544 --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/qat_mig_dev.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright(c) 2024 Intel Corporation */ +#include +#include +#include +#include +#include +#include "adf_common_drv.h" + +struct qat_mig_dev *qat_vfmig_create(struct pci_dev *pdev, int vf_id) +{ + struct adf_accel_dev *accel_dev; + struct qat_mig_dev *mdev; + + accel_dev = adf_devmgr_pci_to_accel_dev(pdev); + if (!accel_dev) + return ERR_PTR(-ENODEV); + + mdev = kmalloc(sizeof(*mdev), GFP_KERNEL); + if (!mdev) + return ERR_PTR(-ENOMEM); + + mdev->vf_id = vf_id; + mdev->parent_accel_dev = accel_dev; + mdev->ops = &accel_dev->hw_device->vfmig_ops; + + return mdev; +} +EXPORT_SYMBOL_GPL(qat_vfmig_create); + +void qat_vfmig_destroy(struct qat_mig_dev *mdev) +{ + kfree(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_destroy); diff --git a/include/linux/qat/qat_mig_dev.h b/include/linux/qat/qat_mig_dev.h new file mode 100644 index 000000000000..229454efe3ba --- /dev/null +++ b/include/linux/qat/qat_mig_dev.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright(c) 2024 Intel Corporation */ +#ifndef QAT_MIG_DEV_H_ +#define QAT_MIG_DEV_H_ + +struct pci_dev; +struct qat_migdev_ops; + +struct qat_mig_dev { + void *parent_accel_dev; + struct qat_migdev_ops *ops; + u8 *state; + u32 state_size; + s32 vf_id; +}; + +struct qat_migdev_ops { + int (*init)(struct qat_mig_dev *mdev); + void (*cleanup)(struct qat_mig_dev *mdev); + int (*open)(struct qat_mig_dev *mdev); + void (*close)(struct qat_mig_dev *mdev); + int (*suspend)(struct qat_mig_dev *mdev); + int (*resume)(struct qat_mig_dev *mdev); + int (*save_state)(struct qat_mig_dev *mdev); + int (*load_state)(struct qat_mig_dev *mdev); +}; + +struct qat_mig_dev *qat_vfmig_create(struct pci_dev *pdev, int vf_id); +void qat_vfmig_destroy(struct qat_mig_dev *mdev); + +#endif /*QAT_MIG_DEV_H_*/