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Current Path: /usr/src/sys/dev/axgbe

📁 ..
📄 if_axgbe.c(16.34 KB)
📄 if_axgbe_pci.c(79.21 KB)
📄 xgbe-common.h(59.35 KB)
📄 xgbe-dcb.c(9.68 KB)
📄 xgbe-desc.c(8.17 KB)
📄 xgbe-dev.c(76.7 KB)
📄 xgbe-drv.c(13.67 KB)
📄 xgbe-i2c.c(15.47 KB)
📄 xgbe-mdio.c(41.64 KB)
📄 xgbe-phy-v1.c(21.06 KB)
📄 xgbe-phy-v2.c(98.71 KB)
📄 xgbe-ptp.c(9.9 KB)
📄 xgbe-sysctl.c(44.14 KB)
📄 xgbe-txrx.c(24.13 KB)
📄 xgbe.h(39.2 KB)
📄 xgbe_osdep.c(1.91 KB)
📄 xgbe_osdep.h(8.59 KB)

Editing: xgbe_osdep.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2020 Advanced Micro Devices, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * Contact Information :
 * Rajesh Kumar <rajesh1.kumar@amd.com>
 *
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include "xgbe.h"
#include "xgbe_osdep.h"

/* Bit Reversal - http://aggregate.org/MAGIC/#Bit%20Reversal */
uint32_t bitrev32(uint32_t x)
{
        x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1));
        x = (((x & 0xcccccccc) >> 2) | ((x & 0x33333333) << 2));
        x = (((x & 0xf0f0f0f0) >> 4) | ((x & 0x0f0f0f0f) << 4));
        x = (((x & 0xff00ff00) >> 8) | ((x & 0x00ff00ff) << 8));

return ((x >> 16) | (x << 16));
}

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Editing: xgbe_osdep.c

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