0aeed3e993
Freescale's QorIQ line includes a new ethernet controller, based on their Datapath Acceleration Architecture (DPAA). This uses a combination of a Frame manager, Buffer manager, and Queue manager to improve performance across all interfaces by being able to pass data directly between hardware acceleration interfaces. As part of this import, Freescale's Netcomm Software (ncsw) driver is imported. This was an attempt by Freescale to create an OS-agnostic sub-driver for managing the hardware, using shims to interface to the OS-specific APIs. This work was abandoned, and Freescale's primary work is in the Linux driver (dual BSD/GPL license). Hence, this was imported directly to sys/contrib, rather than going through the vendor area. Going forward, FreeBSD-specific changes may be made to the ncsw code, diverging from the upstream in potentially incompatible ways. An alternative could be to import the Linux driver itself, using the linuxKPI layer, as that would maintain parity with the vendor-maintained driver. However, the Linux driver has not been evaluated for reliability yet, and may have issues with the import, whereas the ncsw-based driver in this commit was completed by Semihalf 4 years ago, and is very stable. Other SoC modules based on DPAA, which could be added in the future: * Security and Encryption engine (SEC4.x, SEC5.x) * RAID engine Additional work to be done: * Implement polling mode * Test vlan support * Add support for the Pattern Matching Engine, which can do regular expression matching on packets. This driver has been tested on the P5020 QorIQ SoC. Others listed in the dtsec(4) manual page are expected to work as the same DPAA engine is included in all. Obtained from: Semihalf Relnotes: Yes Sponsored by: Alex Perez/Inertial Computing
447 lines
17 KiB
C
447 lines
17 KiB
C
/* Copyright (c) 2008-2011 Freescale Semiconductor, Inc.
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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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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * 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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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**************************************************************************//**
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@File endian_ext.h
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@Description Big/little endian swapping routines.
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*//***************************************************************************/
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#ifndef __ENDIAN_EXT_H
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#define __ENDIAN_EXT_H
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#include "std_ext.h"
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/**************************************************************************//**
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@Group gen_id General Drivers Utilities
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@Description General usage API. This API is intended for usage by both the
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internal modules and the user's application.
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@{
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*//***************************************************************************/
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/**************************************************************************//**
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@Group endian_id Big/Little-Endian Conversion
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@Description Routines and macros for Big/Little-Endian conversion and
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general byte swapping.
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All routines and macros are expecting unsigned values as
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parameters, but will generate the correct result also for
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signed values. Therefore, signed/unsigned casting is allowed.
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@{
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*//***************************************************************************/
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/**************************************************************************//**
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@Collection Byte-Swap Macros
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Macros for swapping byte order.
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@Cautions The parameters of these macros are evaluated multiple times.
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For calculated expressions or expressions that contain function
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calls it is recommended to use the byte-swap routines.
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@{
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*//***************************************************************************/
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/**************************************************************************//**
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@Description Swaps the byte order of a given 16-bit value.
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@Param[in] val - The 16-bit value to swap.
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@Return The byte-swapped value..
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@Cautions The given value is evaluated multiple times by this macro.
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For calculated expressions or expressions that contain function
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calls it is recommended to use the SwapUint16() routine.
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@hideinitializer
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*//***************************************************************************/
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#define SWAP_UINT16(val) \
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((uint16_t)((((val) & 0x00FF) << 8) | (((val) & 0xFF00) >> 8)))
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/**************************************************************************//**
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@Description Swaps the byte order of a given 32-bit value.
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@Param[in] val - The 32-bit value to swap.
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@Return The byte-swapped value..
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@Cautions The given value is evaluated multiple times by this macro.
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For calculated expressions or expressions that contain function
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calls it is recommended to use the SwapUint32() routine.
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@hideinitializer
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*//***************************************************************************/
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#define SWAP_UINT32(val) \
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((uint32_t)((((val) & 0x000000FF) << 24) | \
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(((val) & 0x0000FF00) << 8) | \
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(((val) & 0x00FF0000) >> 8) | \
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(((val) & 0xFF000000) >> 24)))
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/**************************************************************************//**
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@Description Swaps the byte order of a given 64-bit value.
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@Param[in] val - The 64-bit value to swap.
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@Return The byte-swapped value..
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@Cautions The given value is evaluated multiple times by this macro.
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For calculated expressions or expressions that contain function
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calls it is recommended to use the SwapUint64() routine.
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@hideinitializer
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*//***************************************************************************/
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#define SWAP_UINT64(val) \
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((uint64_t)((((val) & 0x00000000000000FFULL) << 56) | \
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(((val) & 0x000000000000FF00ULL) << 40) | \
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(((val) & 0x0000000000FF0000ULL) << 24) | \
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(((val) & 0x00000000FF000000ULL) << 8) | \
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(((val) & 0x000000FF00000000ULL) >> 8) | \
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(((val) & 0x0000FF0000000000ULL) >> 24) | \
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(((val) & 0x00FF000000000000ULL) >> 40) | \
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(((val) & 0xFF00000000000000ULL) >> 56)))
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/* @} */
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/**************************************************************************//**
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@Collection Byte-Swap Routines
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Routines for swapping the byte order of a given parameter and
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returning the swapped value.
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These inline routines are safer than the byte-swap macros,
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because they evaluate the parameter expression only once.
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@{
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*//***************************************************************************/
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/**************************************************************************//**
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@Function SwapUint16
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@Description Returns the byte-swapped value of a given 16-bit value.
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@Param[in] val - The 16-bit value.
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@Return The byte-swapped value of the parameter.
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*//***************************************************************************/
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static __inline__ uint16_t SwapUint16(uint16_t val)
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{
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return (uint16_t)(((val & 0x00FF) << 8) |
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((val & 0xFF00) >> 8));
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}
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/**************************************************************************//**
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@Function SwapUint32
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@Description Returns the byte-swapped value of a given 32-bit value.
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@Param[in] val - The 32-bit value.
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@Return The byte-swapped value of the parameter.
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*//***************************************************************************/
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static __inline__ uint32_t SwapUint32(uint32_t val)
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{
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return (uint32_t)(((val & 0x000000FF) << 24) |
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((val & 0x0000FF00) << 8) |
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((val & 0x00FF0000) >> 8) |
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((val & 0xFF000000) >> 24));
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}
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/**************************************************************************//**
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@Function SwapUint64
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@Description Returns the byte-swapped value of a given 64-bit value.
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@Param[in] val - The 64-bit value.
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@Return The byte-swapped value of the parameter.
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*//***************************************************************************/
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static __inline__ uint64_t SwapUint64(uint64_t val)
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{
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return (uint64_t)(((val & 0x00000000000000FFULL) << 56) |
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((val & 0x000000000000FF00ULL) << 40) |
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((val & 0x0000000000FF0000ULL) << 24) |
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((val & 0x00000000FF000000ULL) << 8) |
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((val & 0x000000FF00000000ULL) >> 8) |
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((val & 0x0000FF0000000000ULL) >> 24) |
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((val & 0x00FF000000000000ULL) >> 40) |
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((val & 0xFF00000000000000ULL) >> 56));
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}
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/* @} */
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/**************************************************************************//**
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@Collection In-place Byte-Swap-And-Set Routines
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Routines for swapping the byte order of a given variable and
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setting the swapped value back to the same variable.
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@{
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*//***************************************************************************/
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/**************************************************************************//**
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@Function SwapUint16P
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@Description Swaps the byte order of a given 16-bit variable.
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@Param[in] p_Val - Pointer to the 16-bit variable.
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@Return None.
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*//***************************************************************************/
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static __inline__ void SwapUint16P(uint16_t *p_Val)
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{
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*p_Val = SwapUint16(*p_Val);
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}
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/**************************************************************************//**
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@Function SwapUint32P
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@Description Swaps the byte order of a given 32-bit variable.
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@Param[in] p_Val - Pointer to the 32-bit variable.
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@Return None.
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*//***************************************************************************/
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static __inline__ void SwapUint32P(uint32_t *p_Val)
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{
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*p_Val = SwapUint32(*p_Val);
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}
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/**************************************************************************//**
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@Function SwapUint64P
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@Description Swaps the byte order of a given 64-bit variable.
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@Param[in] p_Val - Pointer to the 64-bit variable.
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@Return None.
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*//***************************************************************************/
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static __inline__ void SwapUint64P(uint64_t *p_Val)
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{
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*p_Val = SwapUint64(*p_Val);
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}
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/* @} */
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/**************************************************************************//**
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@Collection Little-Endian Conversion Macros
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These macros convert given parameters to or from Little-Endian
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format. Use these macros when you want to read or write a specific
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Little-Endian value in memory, without a-priori knowing the CPU
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byte order.
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These macros use the byte-swap routines. For conversion of
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constants in initialization structures, you may use the CONST
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versions of these macros (see below), which are using the
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byte-swap macros instead.
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@{
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*//***************************************************************************/
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/**************************************************************************//**
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@Description Converts a given 16-bit value from CPU byte order to
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Little-Endian byte order.
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@Param[in] val - The 16-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CPU_TO_LE16(val) SwapUint16(val)
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/**************************************************************************//**
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@Description Converts a given 32-bit value from CPU byte order to
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Little-Endian byte order.
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@Param[in] val - The 32-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CPU_TO_LE32(val) SwapUint32(val)
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/**************************************************************************//**
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@Description Converts a given 64-bit value from CPU byte order to
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Little-Endian byte order.
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@Param[in] val - The 64-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CPU_TO_LE64(val) SwapUint64(val)
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/**************************************************************************//**
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@Description Converts a given 16-bit value from Little-Endian byte order to
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CPU byte order.
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@Param[in] val - The 16-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define LE16_TO_CPU(val) CPU_TO_LE16(val)
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/**************************************************************************//**
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@Description Converts a given 32-bit value from Little-Endian byte order to
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CPU byte order.
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@Param[in] val - The 32-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define LE32_TO_CPU(val) CPU_TO_LE32(val)
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/**************************************************************************//**
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@Description Converts a given 64-bit value from Little-Endian byte order to
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CPU byte order.
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@Param[in] val - The 64-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define LE64_TO_CPU(val) CPU_TO_LE64(val)
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/* @} */
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/**************************************************************************//**
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@Collection Little-Endian Constant Conversion Macros
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These macros convert given constants to or from Little-Endian
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format. Use these macros when you want to read or write a specific
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Little-Endian constant in memory, without a-priori knowing the
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CPU byte order.
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These macros use the byte-swap macros, therefore can be used for
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conversion of constants in initialization structures.
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@Cautions The parameters of these macros are evaluated multiple times.
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For non-constant expressions, use the non-CONST macro versions.
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@{
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*//***************************************************************************/
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/**************************************************************************//**
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@Description Converts a given 16-bit constant from CPU byte order to
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Little-Endian byte order.
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@Param[in] val - The 16-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CONST_CPU_TO_LE16(val) SWAP_UINT16(val)
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/**************************************************************************//**
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@Description Converts a given 32-bit constant from CPU byte order to
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Little-Endian byte order.
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@Param[in] val - The 32-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CONST_CPU_TO_LE32(val) SWAP_UINT32(val)
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/**************************************************************************//**
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@Description Converts a given 64-bit constant from CPU byte order to
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Little-Endian byte order.
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@Param[in] val - The 64-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CONST_CPU_TO_LE64(val) SWAP_UINT64(val)
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/**************************************************************************//**
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@Description Converts a given 16-bit constant from Little-Endian byte order
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to CPU byte order.
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@Param[in] val - The 16-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CONST_LE16_TO_CPU(val) CONST_CPU_TO_LE16(val)
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/**************************************************************************//**
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@Description Converts a given 32-bit constant from Little-Endian byte order
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to CPU byte order.
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@Param[in] val - The 32-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CONST_LE32_TO_CPU(val) CONST_CPU_TO_LE32(val)
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/**************************************************************************//**
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@Description Converts a given 64-bit constant from Little-Endian byte order
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to CPU byte order.
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@Param[in] val - The 64-bit value to convert.
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@Return The converted value.
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@hideinitializer
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*//***************************************************************************/
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#define CONST_LE64_TO_CPU(val) CONST_CPU_TO_LE64(val)
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/* @} */
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/** @} */ /* end of endian_id group */
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/** @} */ /* end of gen_id group */
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#endif /* __ENDIAN_EXT_H */
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