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Diffstat (limited to 'gpxe/src/drivers/infiniband/mlx_bitops.h')
| -rw-r--r-- | gpxe/src/drivers/infiniband/mlx_bitops.h | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/gpxe/src/drivers/infiniband/mlx_bitops.h b/gpxe/src/drivers/infiniband/mlx_bitops.h deleted file mode 100644 index 71a9bf1e..00000000 --- a/gpxe/src/drivers/infiniband/mlx_bitops.h +++ /dev/null @@ -1,223 +0,0 @@ -#ifndef _MLX_BITOPS_H -#define _MLX_BITOPS_H - -/* - * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -/** - * @file - * - * Mellanox bit operations - * - */ - -/* Datatype used to represent a bit in the Mellanox autogenerated headers */ -typedef unsigned char pseudo_bit_t; - -/** - * Wrapper structure for pseudo_bit_t structures - * - * This structure provides a wrapper around the autogenerated - * pseudo_bit_t structures. It has the correct size, and also - * encapsulates type information about the underlying pseudo_bit_t - * structure, which allows the MLX_FILL etc. macros to work without - * requiring explicit type information. - */ -#define MLX_DECLARE_STRUCT( _structure ) \ - _structure { \ - union { \ - uint8_t bytes[ sizeof ( struct _structure ## _st ) / 8 ]; \ - uint32_t dwords[ sizeof ( struct _structure ## _st ) / 32 ]; \ - struct _structure ## _st *dummy[0]; \ - } u; \ - } - -/** Get pseudo_bit_t structure type from wrapper structure pointer */ -#define MLX_PSEUDO_STRUCT( _ptr ) \ - typeof ( *((_ptr)->u.dummy[0]) ) - -/** Bit offset of a field within a pseudo_bit_t structure */ -#define MLX_BIT_OFFSET( _structure_st, _field ) \ - offsetof ( _structure_st, _field ) - -/** Dword offset of a field within a pseudo_bit_t structure */ -#define MLX_DWORD_OFFSET( _structure_st, _field ) \ - ( MLX_BIT_OFFSET ( _structure_st, _field ) / 32 ) - -/** Dword bit offset of a field within a pseudo_bit_t structure - * - * Yes, using mod-32 would work, but would lose the check for the - * error of specifying a mismatched field name and dword index. - */ -#define MLX_DWORD_BIT_OFFSET( _structure_st, _index, _field ) \ - ( MLX_BIT_OFFSET ( _structure_st, _field ) - ( 32 * (_index) ) ) - -/** Bit width of a field within a pseudo_bit_t structure */ -#define MLX_BIT_WIDTH( _structure_st, _field ) \ - sizeof ( ( ( _structure_st * ) NULL )->_field ) - -/** Bit mask for a field within a pseudo_bit_t structure */ -#define MLX_BIT_MASK( _structure_st, _field ) \ - ( ( ~( ( uint32_t ) 0 ) ) >> \ - ( 32 - MLX_BIT_WIDTH ( _structure_st, _field ) ) ) - -/* - * Assemble native-endian dword from named fields and values - * - */ - -#define MLX_ASSEMBLE_1( _structure_st, _index, _field, _value ) \ - ( (_value) << MLX_DWORD_BIT_OFFSET ( _structure_st, _index, _field ) ) - -#define MLX_ASSEMBLE_2( _structure_st, _index, _field, _value, ... ) \ - ( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) | \ - MLX_ASSEMBLE_1 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_ASSEMBLE_3( _structure_st, _index, _field, _value, ... ) \ - ( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) | \ - MLX_ASSEMBLE_2 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_ASSEMBLE_4( _structure_st, _index, _field, _value, ... ) \ - ( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) | \ - MLX_ASSEMBLE_3 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_ASSEMBLE_5( _structure_st, _index, _field, _value, ... ) \ - ( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) | \ - MLX_ASSEMBLE_4 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_ASSEMBLE_6( _structure_st, _index, _field, _value, ... ) \ - ( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) | \ - MLX_ASSEMBLE_5 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_ASSEMBLE_7( _structure_st, _index, _field, _value, ... ) \ - ( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) | \ - MLX_ASSEMBLE_6 ( _structure_st, _index, __VA_ARGS__ ) ) - -/* - * Build native-endian (positive) dword bitmasks from named fields - * - */ - -#define MLX_MASK_1( _structure_st, _index, _field ) \ - ( MLX_BIT_MASK ( _structure_st, _field ) << \ - MLX_DWORD_BIT_OFFSET ( _structure_st, _index, _field ) ) - -#define MLX_MASK_2( _structure_st, _index, _field, ... ) \ - ( MLX_MASK_1 ( _structure_st, _index, _field ) | \ - MLX_MASK_1 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_MASK_3( _structure_st, _index, _field, ... ) \ - ( MLX_MASK_1 ( _structure_st, _index, _field ) | \ - MLX_MASK_2 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_MASK_4( _structure_st, _index, _field, ... ) \ - ( MLX_MASK_1 ( _structure_st, _index, _field ) | \ - MLX_MASK_3 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_MASK_5( _structure_st, _index, _field, ... ) \ - ( MLX_MASK_1 ( _structure_st, _index, _field ) | \ - MLX_MASK_4 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_MASK_6( _structure_st, _index, _field, ... ) \ - ( MLX_MASK_1 ( _structure_st, _index, _field ) | \ - MLX_MASK_5 ( _structure_st, _index, __VA_ARGS__ ) ) - -#define MLX_MASK_7( _structure_st, _index, _field, ... ) \ - ( MLX_MASK_1 ( _structure_st, _index, _field ) | \ - MLX_MASK_6 ( _structure_st, _index, __VA_ARGS__ ) ) - -/* - * Populate big-endian dwords from named fields and values - * - */ - -#define MLX_FILL( _ptr, _index, _assembled ) \ - do { \ - uint32_t *__ptr = &(_ptr)->u.dwords[(_index)]; \ - uint32_t __assembled = (_assembled); \ - *__ptr = cpu_to_be32 ( __assembled ); \ - } while ( 0 ) - -#define MLX_FILL_1( _ptr, _index, ... ) \ - MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_1 ( MLX_PSEUDO_STRUCT ( _ptr ),\ - _index, __VA_ARGS__ ) ) - -#define MLX_FILL_2( _ptr, _index, ... ) \ - MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_2 ( MLX_PSEUDO_STRUCT ( _ptr ),\ - _index, __VA_ARGS__ ) ) - -#define MLX_FILL_3( _ptr, _index, ... ) \ - MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_3 ( MLX_PSEUDO_STRUCT ( _ptr ),\ - _index, __VA_ARGS__ ) ) - -#define MLX_FILL_4( _ptr, _index, ... ) \ - MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_4 ( MLX_PSEUDO_STRUCT ( _ptr ),\ - _index, __VA_ARGS__ ) ) - -#define MLX_FILL_5( _ptr, _index, ... ) \ - MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_5 ( MLX_PSEUDO_STRUCT ( _ptr ),\ - _index, __VA_ARGS__ ) ) - -#define MLX_FILL_6( _ptr, _index, ... ) \ - MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_6 ( MLX_PSEUDO_STRUCT ( _ptr ),\ - _index, __VA_ARGS__ ) ) - -#define MLX_FILL_7( _ptr, _index, ... ) \ - MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_7 ( MLX_PSEUDO_STRUCT ( _ptr ),\ - _index, __VA_ARGS__ ) ) - -/* - * Modify big-endian dword using named field and value - * - */ - -#define MLX_SET( _ptr, _field, _value ) \ - do { \ - unsigned int __index = \ - MLX_DWORD_OFFSET ( MLX_PSEUDO_STRUCT ( _ptr ), _field ); \ - uint32_t *__ptr = &(_ptr)->u.dwords[__index]; \ - uint32_t __value = be32_to_cpu ( *__ptr ); \ - __value &= ~( MLX_MASK_1 ( MLX_PSEUDO_STRUCT ( _ptr ), \ - __index, _field ) ); \ - __value |= MLX_ASSEMBLE_1 ( MLX_PSEUDO_STRUCT ( _ptr ), \ - __index, _field, _value ); \ - *__ptr = cpu_to_be32 ( __value ); \ - } while ( 0 ) - -/* - * Extract value of named field - * - */ - -#define MLX_GET( _ptr, _field ) \ - ( { \ - unsigned int __index = \ - MLX_DWORD_OFFSET ( MLX_PSEUDO_STRUCT ( _ptr ), _field ); \ - uint32_t *__ptr = &(_ptr)->u.dwords[__index]; \ - uint32_t __value = be32_to_cpu ( *__ptr ); \ - __value >>= \ - MLX_DWORD_BIT_OFFSET ( MLX_PSEUDO_STRUCT ( _ptr ), \ - __index, _field ); \ - __value &= \ - MLX_BIT_MASK ( MLX_PSEUDO_STRUCT ( _ptr ), _field ); \ - __value; \ - } ) - -#endif /* _MLX_BITOPS_H */ |