92 lines
3.2 KiB
C
92 lines
3.2 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause */
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/* Copyright (c) 2020, Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*$FreeBSD$*/
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/**
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* @file ice_features.h
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* @brief device feature controls
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*
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* Contains a list of various device features which could be enabled or
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* disabled.
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*/
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#ifndef _ICE_FEATURES_H_
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#define _ICE_FEATURES_H_
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/**
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* @enum feat_list
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* @brief driver feature enumeration
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*
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* Enumeration of possible device driver features that can be enabled or
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* disabled. Each possible value represents a different feature which can be
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* enabled or disabled.
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*
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* The driver stores a bitmap of the features that the device and OS are
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* capable of, as well as another bitmap indicating which features are
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* currently enabled for that device.
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*/
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enum feat_list {
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ICE_FEATURE_SRIOV,
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ICE_FEATURE_RSS,
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ICE_FEATURE_NETMAP,
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ICE_FEATURE_FDIR,
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ICE_FEATURE_MSI,
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ICE_FEATURE_MSIX,
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ICE_FEATURE_RDMA,
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ICE_FEATURE_SAFE_MODE,
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ICE_FEATURE_LENIENT_LINK_MODE,
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ICE_FEATURE_DEFAULT_OVERRIDE,
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/* Must be last entry */
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ICE_FEATURE_COUNT
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};
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/**
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* ice_disable_unsupported_features - Disable features not enabled by OS
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* @bitmap: the feature bitmap
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*
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* Check for OS support of various driver features. Clear the feature bit for
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* any feature which is not enabled by the OS. This should be called early
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* during driver attach after setting up the feature bitmap.
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*
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* @remark the bitmap parameter is marked as unused in order to avoid an
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* unused parameter warning in case none of the features need to be disabled.
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*/
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static inline void
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ice_disable_unsupported_features(ice_bitmap_t __unused *bitmap)
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{
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ice_clear_bit(ICE_FEATURE_SRIOV, bitmap);
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#ifndef DEV_NETMAP
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ice_clear_bit(ICE_FEATURE_NETMAP, bitmap);
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#endif
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}
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#endif
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