1 /* SPDX-License-Identifier: BSD-3-Clause */ 2 /* Copyright (c) 2022, Intel Corporation 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * 3. Neither the name of the Intel Corporation nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /*$FreeBSD$*/ 32 33 /** 34 * @file ice_features.h 35 * @brief device feature controls 36 * 37 * Contains a list of various device features which could be enabled or 38 * disabled. 39 */ 40 41 #ifndef _ICE_FEATURES_H_ 42 #define _ICE_FEATURES_H_ 43 44 /** 45 * @enum feat_list 46 * @brief driver feature enumeration 47 * 48 * Enumeration of possible device driver features that can be enabled or 49 * disabled. Each possible value represents a different feature which can be 50 * enabled or disabled. 51 * 52 * The driver stores a bitmap of the features that the device and OS are 53 * capable of, as well as another bitmap indicating which features are 54 * currently enabled for that device. 55 */ 56 enum feat_list { 57 ICE_FEATURE_SRIOV, 58 ICE_FEATURE_RSS, 59 ICE_FEATURE_NETMAP, 60 ICE_FEATURE_FDIR, 61 ICE_FEATURE_MSI, 62 ICE_FEATURE_MSIX, 63 ICE_FEATURE_RDMA, 64 ICE_FEATURE_SAFE_MODE, 65 ICE_FEATURE_LENIENT_LINK_MODE, 66 ICE_FEATURE_LINK_MGMT_VER_1, 67 ICE_FEATURE_LINK_MGMT_VER_2, 68 ICE_FEATURE_HEALTH_STATUS, 69 ICE_FEATURE_FW_LOGGING, 70 ICE_FEATURE_HAS_PBA, 71 ICE_FEATURE_DCB, 72 ICE_FEATURE_TX_BALANCE, 73 /* Must be last entry */ 74 ICE_FEATURE_COUNT 75 }; 76 77 /** 78 * ice_disable_unsupported_features - Disable features not enabled by OS 79 * @bitmap: the feature bitmap 80 * 81 * Check for OS support of various driver features. Clear the feature bit for 82 * any feature which is not enabled by the OS. This should be called early 83 * during driver attach after setting up the feature bitmap. 84 * 85 * @remark the bitmap parameter is marked as unused in order to avoid an 86 * unused parameter warning in case none of the features need to be disabled. 87 */ 88 static inline void 89 ice_disable_unsupported_features(ice_bitmap_t __unused *bitmap) 90 { 91 ice_clear_bit(ICE_FEATURE_SRIOV, bitmap); 92 #ifndef DEV_NETMAP 93 ice_clear_bit(ICE_FEATURE_NETMAP, bitmap); 94 #endif 95 } 96 97 #endif 98