bitfield.h (75bf465f0bc33e9b776a46d6a1b9b990f5fb7c37) bitfield.h (bb4a0c88ae3108209c6a7144ccd0b456856cf316)
1/* SPDX-License-Identifier: GPL-2.0-only */
2/****************************************************************************
3 * Driver for Solarflare network controllers and boards
4 * Copyright 2005-2006 Fen Systems Ltd.
5 * Copyright 2006-2013 Solarflare Communications Inc.
6 */
7
8#ifndef EF4_BITFIELD_H

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112 * For example, suppose "element" represents the high 32 bits of a
113 * 64-bit value, and we wish to extract the bits belonging to the bit
114 * field occupying bits 28-45 of this 64-bit value.
115 *
116 * Then EF4_EXTRACT ( element, 32, 63, 28, 45 ) would give
117 *
118 * ( element ) << 4
119 *
1/* SPDX-License-Identifier: GPL-2.0-only */
2/****************************************************************************
3 * Driver for Solarflare network controllers and boards
4 * Copyright 2005-2006 Fen Systems Ltd.
5 * Copyright 2006-2013 Solarflare Communications Inc.
6 */
7
8#ifndef EF4_BITFIELD_H

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112 * For example, suppose "element" represents the high 32 bits of a
113 * 64-bit value, and we wish to extract the bits belonging to the bit
114 * field occupying bits 28-45 of this 64-bit value.
115 *
116 * Then EF4_EXTRACT ( element, 32, 63, 28, 45 ) would give
117 *
118 * ( element ) << 4
119 *
120 * The result will contain the relevant bits filled in in the range
120 * The result will contain the relevant bits filled in the range
121 * [0,high-low), with garbage in bits [high-low+1,...).
122 */
123#define EF4_EXTRACT_NATIVE(native_element, min, max, low, high) \
124 ((low) > (max) || (high) < (min) ? 0 : \
125 (low) > (min) ? \
126 (native_element) >> ((low) - (min)) : \
127 (native_element) << ((min) - (low)))
128

--- 411 unchanged lines hidden --- 		121 * [0,high-low), with garbage in bits [high-low+1,...).
122 */
123#define EF4_EXTRACT_NATIVE(native_element, min, max, low, high) \
124 ((low) > (max) || (high) < (min) ? 0 : \
125 (low) > (min) ? \
126 (native_element) >> ((low) - (min)) : \
127 (native_element) << ((min) - (low)))
128

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