summaryrefslogtreecommitdiff
path: root/gpxe/src/drivers/net/phantom/nx_bitops.h
diff options
context:
space:
mode:
Diffstat (limited to 'gpxe/src/drivers/net/phantom/nx_bitops.h')
-rw-r--r--gpxe/src/drivers/net/phantom/nx_bitops.h194
1 files changed, 0 insertions, 194 deletions
diff --git a/gpxe/src/drivers/net/phantom/nx_bitops.h b/gpxe/src/drivers/net/phantom/nx_bitops.h
deleted file mode 100644
index 40686326..00000000
--- a/gpxe/src/drivers/net/phantom/nx_bitops.h
+++ /dev/null
@@ -1,194 +0,0 @@
-#ifndef _NX_BITOPS_H
-#define _NX_BITOPS_H
-
-/*
- * Copyright (C) 2008 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
- *
- * NetXen bit operations
- *
- */
-
-/** Datatype used to represent a bit in the pseudo-structures */
-typedef unsigned char pseudo_bit_t;
-
-/**
- * Wrapper structure for pseudo_bit_t structures
- *
- * This structure provides a wrapper around pseudo_bit_t structures.
- * It has the correct size, and also encapsulates type information
- * about the underlying pseudo_bit_t-based structure, which allows the
- * NX_FILL etc. macros to work without requiring explicit type
- * information.
- */
-#define NX_PSEUDO_BIT_STRUCT( _structure ) \
- union { \
- uint8_t bytes[ sizeof ( _structure ) / 8 ]; \
- uint64_t qwords[ sizeof ( _structure ) / 64 ]; \
- _structure *dummy[0]; \
- } u;
-
-/** Get pseudo_bit_t structure type from wrapper structure pointer */
-#define NX_PSEUDO_STRUCT( _ptr ) \
- typeof ( *((_ptr)->u.dummy[0]) )
-
-/** Bit offset of a field within a pseudo_bit_t structure */
-#define NX_BIT_OFFSET( _ptr, _field ) \
- offsetof ( NX_PSEUDO_STRUCT ( _ptr ), _field )
-
-/** Bit width of a field within a pseudo_bit_t structure */
-#define NX_BIT_WIDTH( _ptr, _field ) \
- sizeof ( ( ( NX_PSEUDO_STRUCT ( _ptr ) * ) NULL )->_field )
-
-/** Qword offset of a field within a pseudo_bit_t structure */
-#define NX_QWORD_OFFSET( _ptr, _field ) \
- ( NX_BIT_OFFSET ( _ptr, _field ) / 64 )
-
-/** Qword bit offset of a field within a pseudo_bit_t structure
- *
- * Yes, using mod-64 would work, but would lose the check for the
- * error of specifying a mismatched field name and qword index.
- */
-#define NX_QWORD_BIT_OFFSET( _ptr, _index, _field ) \
- ( NX_BIT_OFFSET ( _ptr, _field ) - ( 64 * (_index) ) )
-
-/** Bit mask for a field within a pseudo_bit_t structure */
-#define NX_BIT_MASK( _ptr, _field ) \
- ( ( ~( ( uint64_t ) 0 ) ) >> \
- ( 64 - NX_BIT_WIDTH ( _ptr, _field ) ) )
-
-/*
- * Assemble native-endian qword from named fields and values
- *
- */
-
-#define NX_ASSEMBLE_1( _ptr, _index, _field, _value ) \
- ( ( ( uint64_t) (_value) ) << \
- NX_QWORD_BIT_OFFSET ( _ptr, _index, _field ) )
-
-#define NX_ASSEMBLE_2( _ptr, _index, _field, _value, ... ) \
- ( NX_ASSEMBLE_1 ( _ptr, _index, _field, _value ) | \
- NX_ASSEMBLE_1 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_ASSEMBLE_3( _ptr, _index, _field, _value, ... ) \
- ( NX_ASSEMBLE_1 ( _ptr, _index, _field, _value ) | \
- NX_ASSEMBLE_2 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_ASSEMBLE_4( _ptr, _index, _field, _value, ... ) \
- ( NX_ASSEMBLE_1 ( _ptr, _index, _field, _value ) | \
- NX_ASSEMBLE_3 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_ASSEMBLE_5( _ptr, _index, _field, _value, ... ) \
- ( NX_ASSEMBLE_1 ( _ptr, _index, _field, _value ) | \
- NX_ASSEMBLE_4 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_ASSEMBLE_6( _ptr, _index, _field, _value, ... ) \
- ( NX_ASSEMBLE_1 ( _ptr, _index, _field, _value ) | \
- NX_ASSEMBLE_5 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_ASSEMBLE_7( _ptr, _index, _field, _value, ... ) \
- ( NX_ASSEMBLE_1 ( _ptr, _index, _field, _value ) | \
- NX_ASSEMBLE_6 ( _ptr, _index, __VA_ARGS__ ) )
-
-/*
- * Build native-endian (positive) qword bitmasks from named fields
- *
- */
-
-#define NX_MASK_1( _ptr, _index, _field ) \
- ( NX_BIT_MASK ( _ptr, _field ) << \
- NX_QWORD_BIT_OFFSET ( _ptr, _index, _field ) )
-
-#define NX_MASK_2( _ptr, _index, _field, ... ) \
- ( NX_MASK_1 ( _ptr, _index, _field ) | \
- NX_MASK_1 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_MASK_3( _ptr, _index, _field, ... ) \
- ( NX_MASK_1 ( _ptr, _index, _field ) | \
- NX_MASK_2 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_MASK_4( _ptr, _index, _field, ... ) \
- ( NX_MASK_1 ( _ptr, _index, _field ) | \
- NX_MASK_3 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_MASK_5( _ptr, _index, _field, ... ) \
- ( NX_MASK_1 ( _ptr, _index, _field ) | \
- NX_MASK_4 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_MASK_6( _ptr, _index, _field, ... ) \
- ( NX_MASK_1 ( _ptr, _index, _field ) | \
- NX_MASK_5 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_MASK_7( _ptr, _index, _field, ... ) \
- ( NX_MASK_1 ( _ptr, _index, _field ) | \
- NX_MASK_6 ( _ptr, _index, __VA_ARGS__ ) )
-
-/*
- * Populate big-endian qwords from named fields and values
- *
- */
-
-#define NX_FILL( _ptr, _index, _assembled ) \
- do { \
- uint64_t *__ptr = &(_ptr)->u.qwords[(_index)]; \
- uint64_t __assembled = (_assembled); \
- *__ptr = cpu_to_le64 ( __assembled ); \
- } while ( 0 )
-
-#define NX_FILL_1( _ptr, _index, ... ) \
- NX_FILL ( _ptr, _index, NX_ASSEMBLE_1 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_FILL_2( _ptr, _index, ... ) \
- NX_FILL ( _ptr, _index, NX_ASSEMBLE_2 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_FILL_3( _ptr, _index, ... ) \
- NX_FILL ( _ptr, _index, NX_ASSEMBLE_3 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_FILL_4( _ptr, _index, ... ) \
- NX_FILL ( _ptr, _index, NX_ASSEMBLE_4 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_FILL_5( _ptr, _index, ... ) \
- NX_FILL ( _ptr, _index, NX_ASSEMBLE_5 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_FILL_6( _ptr, _index, ... ) \
- NX_FILL ( _ptr, _index, NX_ASSEMBLE_6 ( _ptr, _index, __VA_ARGS__ ) )
-
-#define NX_FILL_7( _ptr, _index, ... ) \
- NX_FILL ( _ptr, _index, NX_ASSEMBLE_7 ( _ptr, _index, __VA_ARGS__ ) )
-
-/** Extract value of named field */
-#define NX_GET64( _ptr, _field ) \
- ( { \
- unsigned int __index = NX_QWORD_OFFSET ( _ptr, _field ); \
- uint64_t *__ptr = &(_ptr)->u.qwords[__index]; \
- uint64_t __value = le64_to_cpu ( *__ptr ); \
- __value >>= \
- NX_QWORD_BIT_OFFSET ( _ptr, __index, _field ); \
- __value &= NX_BIT_MASK ( _ptr, _field ); \
- __value; \
- } )
-
-/** Extract value of named field (for fields up to the size of a long) */
-#define NX_GET( _ptr, _field ) \
- ( ( unsigned long ) NX_GET64 ( _ptr, _field ) )
-
-#endif /* _NX_BITOPS_H */
View Lorry Controller Status