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Diffstat (limited to 'gpxe/src/drivers/net/etherfabric.h')
| -rw-r--r-- | gpxe/src/drivers/net/etherfabric.h | 553 |
1 files changed, 0 insertions, 553 deletions
diff --git a/gpxe/src/drivers/net/etherfabric.h b/gpxe/src/drivers/net/etherfabric.h deleted file mode 100644 index 9657eb7e..00000000 --- a/gpxe/src/drivers/net/etherfabric.h +++ /dev/null @@ -1,553 +0,0 @@ -/************************************************************************** - * - * GPL net driver for Level 5 Etherfabric network cards - * - * Written by Michael Brown <mbrown@fensystems.co.uk> - * - * Copyright Fen Systems Ltd. 2005 - * Copyright Level 5 Networks Inc. 2005 - * - * This software may be used and distributed according to the terms of - * the GNU General Public License (GPL), incorporated herein by - * reference. Drivers based on or derived from this code fall under - * the GPL and must retain the authorship, copyright and license - * notice. This file is not a complete program and may only be used - * when the entire operating system is licensed under the GPL. - * - ************************************************************************** - */ - -FILE_LICENCE ( GPL_ANY ); - -#ifndef EFAB_BITFIELD_H -#define EFAB_BITFIELD_H - -/** @file - * - * Etherfabric bitfield access - * - * Etherfabric NICs make extensive use of bitfields up to 128 bits - * wide. Since there is no native 128-bit datatype on most systems, - * and since 64-bit datatypes are inefficient on 32-bit systems and - * vice versa, we wrap accesses in a way that uses the most efficient - * datatype. - * - * The NICs are PCI devices and therefore little-endian. Since most - * of the quantities that we deal with are DMAed to/from host memory, - * we define our datatypes (efab_oword_t, efab_qword_t and - * efab_dword_t) to be little-endian. - * - * In the less common case of using PIO for individual register - * writes, we construct the little-endian datatype in host memory and - * then use non-swapping equivalents of writel/writeq, rather than - * constructing a native-endian datatype and relying on the implicit - * byte-swapping done by writel/writeq. (We use a similar strategy - * for register reads.) - */ - -/** Dummy field low bit number */ -#define EFAB_DUMMY_FIELD_LBN 0 -/** Dummy field width */ -#define EFAB_DUMMY_FIELD_WIDTH 0 -/** Dword 0 low bit number */ -#define EFAB_DWORD_0_LBN 0 -/** Dword 0 width */ -#define EFAB_DWORD_0_WIDTH 32 -/** Dword 1 low bit number */ -#define EFAB_DWORD_1_LBN 32 -/** Dword 1 width */ -#define EFAB_DWORD_1_WIDTH 32 -/** Dword 2 low bit number */ -#define EFAB_DWORD_2_LBN 64 -/** Dword 2 width */ -#define EFAB_DWORD_2_WIDTH 32 -/** Dword 3 low bit number */ -#define EFAB_DWORD_3_LBN 96 -/** Dword 3 width */ -#define EFAB_DWORD_3_WIDTH 32 - -/** Specified attribute (e.g. LBN) of the specified field */ -#define EFAB_VAL(field,attribute) field ## _ ## attribute -/** Low bit number of the specified field */ -#define EFAB_LOW_BIT( field ) EFAB_VAL ( field, LBN ) -/** Bit width of the specified field */ -#define EFAB_WIDTH( field ) EFAB_VAL ( field, WIDTH ) -/** High bit number of the specified field */ -#define EFAB_HIGH_BIT(field) ( EFAB_LOW_BIT(field) + EFAB_WIDTH(field) - 1 ) -/** Mask equal in width to the specified field. - * - * For example, a field with width 5 would have a mask of 0x1f. - * - * The maximum width mask that can be generated is 64 bits. - */ -#define EFAB_MASK64( field ) \ - ( EFAB_WIDTH(field) == 64 ? ~( ( uint64_t ) 0 ) : \ - ( ( ( ( ( uint64_t ) 1 ) << EFAB_WIDTH(field) ) ) - 1 ) ) - -/** Mask equal in width to the specified field. - * - * For example, a field with width 5 would have a mask of 0x1f. - * - * The maximum width mask that can be generated is 32 bits. Use - * EFAB_MASK64 for higher width fields. - */ -#define EFAB_MASK32( field ) \ - ( EFAB_WIDTH(field) == 32 ? ~( ( uint32_t ) 0 ) : \ - ( ( ( ( ( uint32_t ) 1 ) << EFAB_WIDTH(field) ) ) - 1 ) ) - -/** A doubleword (i.e. 4 byte) datatype - * - * This datatype is defined to be little-endian. - */ -typedef union efab_dword { - uint32_t u32[1]; - uint32_t opaque; /* For bitwise operations between two efab_dwords */ -} efab_dword_t; - -/** A quadword (i.e. 8 byte) datatype - * - * This datatype is defined to be little-endian. - */ -typedef union efab_qword { - uint64_t u64[1]; - uint32_t u32[2]; - efab_dword_t dword[2]; -} efab_qword_t; - -/** - * An octword (eight-word, i.e. 16 byte) datatype - * - * This datatype is defined to be little-endian. - */ -typedef union efab_oword { - uint64_t u64[2]; - efab_qword_t qword[2]; - uint32_t u32[4]; - efab_dword_t dword[4]; -} efab_oword_t; - -/** Format string for printing an efab_dword_t */ -#define EFAB_DWORD_FMT "%08x" - -/** Format string for printing an efab_qword_t */ -#define EFAB_QWORD_FMT "%08x:%08x" - -/** Format string for printing an efab_oword_t */ -#define EFAB_OWORD_FMT "%08x:%08x:%08x:%08x" - -/** printk parameters for printing an efab_dword_t */ -#define EFAB_DWORD_VAL(dword) \ - ( ( unsigned int ) le32_to_cpu ( (dword).u32[0] ) ) - -/** printk parameters for printing an efab_qword_t */ -#define EFAB_QWORD_VAL(qword) \ - ( ( unsigned int ) le32_to_cpu ( (qword).u32[1] ) ), \ - ( ( unsigned int ) le32_to_cpu ( (qword).u32[0] ) ) - -/** printk parameters for printing an efab_oword_t */ -#define EFAB_OWORD_VAL(oword) \ - ( ( unsigned int ) le32_to_cpu ( (oword).u32[3] ) ), \ - ( ( unsigned int ) le32_to_cpu ( (oword).u32[2] ) ), \ - ( ( unsigned int ) le32_to_cpu ( (oword).u32[1] ) ), \ - ( ( unsigned int ) le32_to_cpu ( (oword).u32[0] ) ) - -/** - * Extract bit field portion [low,high) from the native-endian element - * which contains bits [min,max). - * - * For example, suppose "element" represents the high 32 bits of a - * 64-bit value, and we wish to extract the bits belonging to the bit - * field occupying bits 28-45 of this 64-bit value. - * - * Then EFAB_EXTRACT ( element, 32, 63, 28, 45 ) would give - * - * ( element ) << 4 - * - * The result will contain the relevant bits filled in in the range - * [0,high-low), with garbage in bits [high-low+1,...). - */ -#define EFAB_EXTRACT_NATIVE( native_element, min ,max ,low ,high ) \ - ( ( ( low > max ) || ( high < min ) ) ? 0 : \ - ( ( low > min ) ? \ - ( (native_element) >> ( low - min ) ) : \ - ( (native_element) << ( min - low ) ) ) ) - -/** - * Extract bit field portion [low,high) from the 64-bit little-endian - * element which contains bits [min,max) - */ -#define EFAB_EXTRACT64( element, min, max, low, high ) \ - EFAB_EXTRACT_NATIVE ( le64_to_cpu(element), min, max, low, high ) - -/** - * Extract bit field portion [low,high) from the 32-bit little-endian - * element which contains bits [min,max) - */ -#define EFAB_EXTRACT32( element, min, max, low, high ) \ - EFAB_EXTRACT_NATIVE ( le32_to_cpu(element), min, max, low, high ) - -#define EFAB_EXTRACT_OWORD64( oword, low, high ) \ - ( EFAB_EXTRACT64 ( (oword).u64[0], 0, 63, low, high ) | \ - EFAB_EXTRACT64 ( (oword).u64[1], 64, 127, low, high ) ) - -#define EFAB_EXTRACT_QWORD64( qword, low, high ) \ - ( EFAB_EXTRACT64 ( (qword).u64[0], 0, 63, low, high ) ) - -#define EFAB_EXTRACT_OWORD32( oword, low, high ) \ - ( EFAB_EXTRACT32 ( (oword).u32[0], 0, 31, low, high ) | \ - EFAB_EXTRACT32 ( (oword).u32[1], 32, 63, low, high ) | \ - EFAB_EXTRACT32 ( (oword).u32[2], 64, 95, low, high ) | \ - EFAB_EXTRACT32 ( (oword).u32[3], 96, 127, low, high ) ) - -#define EFAB_EXTRACT_QWORD32( qword, low, high ) \ - ( EFAB_EXTRACT32 ( (qword).u32[0], 0, 31, low, high ) | \ - EFAB_EXTRACT32 ( (qword).u32[1], 32, 63, low, high ) ) - -#define EFAB_EXTRACT_DWORD( dword, low, high ) \ - ( EFAB_EXTRACT32 ( (dword).u32[0], 0, 31, low, high ) ) - -#define EFAB_OWORD_FIELD64( oword, field ) \ - ( EFAB_EXTRACT_OWORD64 ( oword, EFAB_LOW_BIT ( field ), \ - EFAB_HIGH_BIT ( field ) ) & \ - EFAB_MASK64 ( field ) ) - -#define EFAB_QWORD_FIELD64( qword, field ) \ - ( EFAB_EXTRACT_QWORD64 ( qword, EFAB_LOW_BIT ( field ), \ - EFAB_HIGH_BIT ( field ) ) & \ - EFAB_MASK64 ( field ) ) - -#define EFAB_OWORD_FIELD32( oword, field ) \ - ( EFAB_EXTRACT_OWORD32 ( oword, EFAB_LOW_BIT ( field ), \ - EFAB_HIGH_BIT ( field ) ) & \ - EFAB_MASK32 ( field ) ) - -#define EFAB_QWORD_FIELD32( qword, field ) \ - ( EFAB_EXTRACT_QWORD32 ( qword, EFAB_LOW_BIT ( field ), \ - EFAB_HIGH_BIT ( field ) ) & \ - EFAB_MASK32 ( field ) ) - -#define EFAB_DWORD_FIELD( dword, field ) \ - ( EFAB_EXTRACT_DWORD ( dword, EFAB_LOW_BIT ( field ), \ - EFAB_HIGH_BIT ( field ) ) & \ - EFAB_MASK32 ( field ) ) - -#define EFAB_OWORD_IS_ZERO64( oword ) \ - ( ! ( (oword).u64[0] || (oword).u64[1] ) ) - -#define EFAB_QWORD_IS_ZERO64( qword ) \ - ( ! ( (qword).u64[0] ) ) - -#define EFAB_OWORD_IS_ZERO32( oword ) \ - ( ! ( (oword).u32[0] || (oword).u32[1] || \ - (oword).u32[2] || (oword).u32[3] ) ) - -#define EFAB_QWORD_IS_ZERO32( qword ) \ - ( ! ( (qword).u32[0] || (qword).u32[1] ) ) - -#define EFAB_DWORD_IS_ZERO( dword ) \ - ( ! ( (dword).u32[0] ) ) - -#define EFAB_OWORD_IS_ALL_ONES64( oword ) \ - ( ( (oword).u64[0] & (oword).u64[1] ) == ~( ( uint64_t ) 0 ) ) - -#define EFAB_QWORD_IS_ALL_ONES64( qword ) \ - ( (qword).u64[0] == ~( ( uint64_t ) 0 ) ) - -#define EFAB_OWORD_IS_ALL_ONES32( oword ) \ - ( ( (oword).u32[0] & (oword).u32[1] & \ - (oword).u32[2] & (oword).u32[3] ) == ~( ( uint32_t ) 0 ) ) - -#define EFAB_QWORD_IS_ALL_ONES32( qword ) \ - ( ( (qword).u32[0] & (qword).u32[1] ) == ~( ( uint32_t ) 0 ) ) - -#define EFAB_DWORD_IS_ALL_ONES( dword ) \ - ( (dword).u32[0] == ~( ( uint32_t ) 0 ) ) - -#if ( BITS_PER_LONG == 64 ) -#define EFAB_OWORD_FIELD EFAB_OWORD_FIELD64 -#define EFAB_QWORD_FIELD EFAB_QWORD_FIELD64 -#define EFAB_OWORD_IS_ZERO EFAB_OWORD_IS_ZERO64 -#define EFAB_QWORD_IS_ZERO EFAB_QWORD_IS_ZERO64 -#define EFAB_OWORD_IS_ALL_ONES EFAB_OWORD_IS_ALL_ONES64 -#define EFAB_QWORD_IS_ALL_ONES EFAB_QWORD_IS_ALL_ONES64 -#else -#define EFAB_OWORD_FIELD EFAB_OWORD_FIELD32 -#define EFAB_QWORD_FIELD EFAB_QWORD_FIELD32 -#define EFAB_OWORD_IS_ZERO EFAB_OWORD_IS_ZERO32 -#define EFAB_QWORD_IS_ZERO EFAB_QWORD_IS_ZERO32 -#define EFAB_OWORD_IS_ALL_ONES EFAB_OWORD_IS_ALL_ONES32 -#define EFAB_QWORD_IS_ALL_ONES EFAB_QWORD_IS_ALL_ONES32 -#endif - -/** - * Construct bit field portion - * - * Creates the portion of the bit field [low,high) that lies within - * the range [min,max). - */ -#define EFAB_INSERT_NATIVE64( min, max, low, high, value ) \ - ( ( ( low > max ) || ( high < min ) ) ? 0 : \ - ( ( low > min ) ? \ - ( ( ( uint64_t ) (value) ) << ( low - min ) ) : \ - ( ( ( uint64_t ) (value) ) >> ( min - low ) ) ) ) - -#define EFAB_INSERT_NATIVE32( min, max, low, high, value ) \ - ( ( ( low > max ) || ( high < min ) ) ? 0 : \ - ( ( low > min ) ? \ - ( ( ( uint32_t ) (value) ) << ( low - min ) ) : \ - ( ( ( uint32_t ) (value) ) >> ( min - low ) ) ) ) - -#define EFAB_INSERT_NATIVE( min, max, low, high, value ) \ - ( ( ( ( max - min ) >= 32 ) || \ - ( ( high - low ) >= 32 ) ) \ - ? EFAB_INSERT_NATIVE64 ( min, max, low, high, value ) \ - : EFAB_INSERT_NATIVE32 ( min, max, low, high, value ) ) - -/** - * Construct bit field portion - * - * Creates the portion of the named bit field that lies within the - * range [min,max). - */ -#define EFAB_INSERT_FIELD_NATIVE( min, max, field, value ) \ - EFAB_INSERT_NATIVE ( min, max, EFAB_LOW_BIT ( field ), \ - EFAB_HIGH_BIT ( field ), value ) - -/** - * Construct bit field - * - * Creates the portion of the named bit fields that lie within the - * range [min,max). - */ -#define EFAB_INSERT_FIELDS_NATIVE( min, max, \ - field1, value1, \ - field2, value2, \ - field3, value3, \ - field4, value4, \ - field5, value5, \ - field6, value6, \ - field7, value7, \ - field8, value8, \ - field9, value9, \ - field10, value10 ) \ - ( EFAB_INSERT_FIELD_NATIVE ( min, max, field1, value1 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field2, value2 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field3, value3 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field4, value4 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field5, value5 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field6, value6 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field7, value7 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field8, value8 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field9, value9 ) | \ - EFAB_INSERT_FIELD_NATIVE ( min, max, field10, value10 ) ) - -#define EFAB_INSERT_FIELDS64( ... ) \ - cpu_to_le64 ( EFAB_INSERT_FIELDS_NATIVE ( __VA_ARGS__ ) ) - -#define EFAB_INSERT_FIELDS32( ... ) \ - cpu_to_le32 ( EFAB_INSERT_FIELDS_NATIVE ( __VA_ARGS__ ) ) - -#define EFAB_POPULATE_OWORD64( oword, ... ) do { \ - (oword).u64[0] = EFAB_INSERT_FIELDS64 ( 0, 63, __VA_ARGS__ );\ - (oword).u64[1] = EFAB_INSERT_FIELDS64 ( 64, 127, __VA_ARGS__ );\ - } while ( 0 ) - -#define EFAB_POPULATE_QWORD64( qword, ... ) do { \ - (qword).u64[0] = EFAB_INSERT_FIELDS64 ( 0, 63, __VA_ARGS__ );\ - } while ( 0 ) - -#define EFAB_POPULATE_OWORD32( oword, ... ) do { \ - (oword).u32[0] = EFAB_INSERT_FIELDS32 ( 0, 31, __VA_ARGS__ );\ - (oword).u32[1] = EFAB_INSERT_FIELDS32 ( 32, 63, __VA_ARGS__ );\ - (oword).u32[2] = EFAB_INSERT_FIELDS32 ( 64, 95, __VA_ARGS__ );\ - (oword).u32[3] = EFAB_INSERT_FIELDS32 ( 96, 127, __VA_ARGS__ );\ - } while ( 0 ) - -#define EFAB_POPULATE_QWORD32( qword, ... ) do { \ - (qword).u32[0] = EFAB_INSERT_FIELDS32 ( 0, 31, __VA_ARGS__ );\ - (qword).u32[1] = EFAB_INSERT_FIELDS32 ( 32, 63, __VA_ARGS__ );\ - } while ( 0 ) - -#define EFAB_POPULATE_DWORD( dword, ... ) do { \ - (dword).u32[0] = EFAB_INSERT_FIELDS32 ( 0, 31, __VA_ARGS__ );\ - } while ( 0 ) - -#if ( BITS_PER_LONG == 64 ) -#define EFAB_POPULATE_OWORD EFAB_POPULATE_OWORD64 -#define EFAB_POPULATE_QWORD EFAB_POPULATE_QWORD64 -#else -#define EFAB_POPULATE_OWORD EFAB_POPULATE_OWORD32 -#define EFAB_POPULATE_QWORD EFAB_POPULATE_QWORD32 -#endif - -/* Populate an octword field with various numbers of arguments */ -#define EFAB_POPULATE_OWORD_10 EFAB_POPULATE_OWORD -#define EFAB_POPULATE_OWORD_9( oword, ... ) \ - EFAB_POPULATE_OWORD_10 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_OWORD_8( oword, ... ) \ - EFAB_POPULATE_OWORD_9 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_OWORD_7( oword, ... ) \ - EFAB_POPULATE_OWORD_8 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_OWORD_6( oword, ... ) \ - EFAB_POPULATE_OWORD_7 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_OWORD_5( oword, ... ) \ - EFAB_POPULATE_OWORD_6 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_OWORD_4( oword, ... ) \ - EFAB_POPULATE_OWORD_5 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_OWORD_3( oword, ... ) \ - EFAB_POPULATE_OWORD_4 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_OWORD_2( oword, ... ) \ - EFAB_POPULATE_OWORD_3 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_OWORD_1( oword, ... ) \ - EFAB_POPULATE_OWORD_2 ( oword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_ZERO_OWORD( oword ) \ - EFAB_POPULATE_OWORD_1 ( oword, EFAB_DUMMY_FIELD, 0 ) -#define EFAB_SET_OWORD( oword ) \ - EFAB_POPULATE_OWORD_4 ( oword, \ - EFAB_DWORD_0, 0xffffffff, \ - EFAB_DWORD_1, 0xffffffff, \ - EFAB_DWORD_2, 0xffffffff, \ - EFAB_DWORD_3, 0xffffffff ) - -/* Populate a quadword field with various numbers of arguments */ -#define EFAB_POPULATE_QWORD_10 EFAB_POPULATE_QWORD -#define EFAB_POPULATE_QWORD_9( qword, ... ) \ - EFAB_POPULATE_QWORD_10 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_QWORD_8( qword, ... ) \ - EFAB_POPULATE_QWORD_9 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_QWORD_7( qword, ... ) \ - EFAB_POPULATE_QWORD_8 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_QWORD_6( qword, ... ) \ - EFAB_POPULATE_QWORD_7 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_QWORD_5( qword, ... ) \ - EFAB_POPULATE_QWORD_6 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_QWORD_4( qword, ... ) \ - EFAB_POPULATE_QWORD_5 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_QWORD_3( qword, ... ) \ - EFAB_POPULATE_QWORD_4 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_QWORD_2( qword, ... ) \ - EFAB_POPULATE_QWORD_3 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_QWORD_1( qword, ... ) \ - EFAB_POPULATE_QWORD_2 ( qword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_ZERO_QWORD( qword ) \ - EFAB_POPULATE_QWORD_1 ( qword, EFAB_DUMMY_FIELD, 0 ) -#define EFAB_SET_QWORD( qword ) \ - EFAB_POPULATE_QWORD_2 ( qword, \ - EFAB_DWORD_0, 0xffffffff, \ - EFAB_DWORD_1, 0xffffffff ) - -/* Populate a dword field with various numbers of arguments */ -#define EFAB_POPULATE_DWORD_10 EFAB_POPULATE_DWORD -#define EFAB_POPULATE_DWORD_9( dword, ... ) \ - EFAB_POPULATE_DWORD_10 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_DWORD_8( dword, ... ) \ - EFAB_POPULATE_DWORD_9 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_DWORD_7( dword, ... ) \ - EFAB_POPULATE_DWORD_8 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_DWORD_6( dword, ... ) \ - EFAB_POPULATE_DWORD_7 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_DWORD_5( dword, ... ) \ - EFAB_POPULATE_DWORD_6 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_DWORD_4( dword, ... ) \ - EFAB_POPULATE_DWORD_5 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_DWORD_3( dword, ... ) \ - EFAB_POPULATE_DWORD_4 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_DWORD_2( dword, ... ) \ - EFAB_POPULATE_DWORD_3 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_POPULATE_DWORD_1( dword, ... ) \ - EFAB_POPULATE_DWORD_2 ( dword, EFAB_DUMMY_FIELD, 0, __VA_ARGS__ ) -#define EFAB_ZERO_DWORD( dword ) \ - EFAB_POPULATE_DWORD_1 ( dword, EFAB_DUMMY_FIELD, 0 ) -#define EFAB_SET_DWORD( dword ) \ - EFAB_POPULATE_DWORD_1 ( dword, EFAB_DWORD_0, 0xffffffff ) - -/* - * Modify a named field within an already-populated structure. Used - * for read-modify-write operations. - * - */ - -#define EFAB_INSERT_FIELD64( ... ) \ - cpu_to_le64 ( EFAB_INSERT_FIELD_NATIVE ( __VA_ARGS__ ) ) - -#define EFAB_INSERT_FIELD32( ... ) \ - cpu_to_le32 ( EFAB_INSERT_FIELD_NATIVE ( __VA_ARGS__ ) ) - -#define EFAB_INPLACE_MASK64( min, max, field ) \ - EFAB_INSERT_FIELD64 ( min, max, field, EFAB_MASK64 ( field ) ) - -#define EFAB_INPLACE_MASK32( min, max, field ) \ - EFAB_INSERT_FIELD32 ( min, max, field, EFAB_MASK32 ( field ) ) - -#define EFAB_SET_OWORD_FIELD64( oword, field, value ) do { \ - (oword).u64[0] = ( ( (oword).u64[0] \ - & ~EFAB_INPLACE_MASK64 ( 0, 63, field ) ) \ - | EFAB_INSERT_FIELD64 ( 0, 63, field, value ) ); \ - (oword).u64[1] = ( ( (oword).u64[1] \ - & ~EFAB_INPLACE_MASK64 ( 64, 127, field ) ) \ - | EFAB_INSERT_FIELD64 ( 64, 127, field, value ) ); \ - } while ( 0 ) - -#define EFAB_SET_QWORD_FIELD64( qword, field, value ) do { \ - (qword).u64[0] = ( ( (qword).u64[0] \ - & ~EFAB_INPLACE_MASK64 ( 0, 63, field ) ) \ - | EFAB_INSERT_FIELD64 ( 0, 63, field, value ) ); \ - } while ( 0 ) - -#define EFAB_SET_OWORD_FIELD32( oword, field, value ) do { \ - (oword).u32[0] = ( ( (oword).u32[0] \ - & ~EFAB_INPLACE_MASK32 ( 0, 31, field ) ) \ - | EFAB_INSERT_FIELD32 ( 0, 31, field, value ) ); \ - (oword).u32[1] = ( ( (oword).u32[1] \ - & ~EFAB_INPLACE_MASK32 ( 32, 63, field ) ) \ - | EFAB_INSERT_FIELD32 ( 32, 63, field, value ) ); \ - (oword).u32[2] = ( ( (oword).u32[2] \ - & ~EFAB_INPLACE_MASK32 ( 64, 95, field ) ) \ - | EFAB_INSERT_FIELD32 ( 64, 95, field, value ) ); \ - (oword).u32[3] = ( ( (oword).u32[3] \ - & ~EFAB_INPLACE_MASK32 ( 96, 127, field ) ) \ - | EFAB_INSERT_FIELD32 ( 96, 127, field, value ) ); \ - } while ( 0 ) - -#define EFAB_SET_QWORD_FIELD32( qword, field, value ) do { \ - (qword).u32[0] = ( ( (qword).u32[0] \ - & ~EFAB_INPLACE_MASK32 ( 0, 31, field ) ) \ - | EFAB_INSERT_FIELD32 ( 0, 31, field, value ) ); \ - (qword).u32[1] = ( ( (qword).u32[1] \ - & ~EFAB_INPLACE_MASK32 ( 32, 63, field ) ) \ - | EFAB_INSERT_FIELD32 ( 32, 63, field, value ) ); \ - } while ( 0 ) - -#define EFAB_SET_DWORD_FIELD( dword, field, value ) do { \ - (dword).u32[0] = ( ( (dword).u32[0] \ - & ~EFAB_INPLACE_MASK32 ( 0, 31, field ) ) \ - | EFAB_INSERT_FIELD32 ( 0, 31, field, value ) ); \ - } while ( 0 ) - -#if ( BITS_PER_LONG == 64 ) -#define EFAB_SET_OWORD_FIELD EFAB_SET_OWORD_FIELD64 -#define EFAB_SET_QWORD_FIELD EFAB_SET_QWORD_FIELD64 -#else -#define EFAB_SET_OWORD_FIELD EFAB_SET_OWORD_FIELD32 -#define EFAB_SET_QWORD_FIELD EFAB_SET_QWORD_FIELD32 -#endif - -/* Used to avoid compiler warnings about shift range exceeding width - * of the data types when dma_addr_t is only 32 bits wide. - */ -#define DMA_ADDR_T_WIDTH ( 8 * sizeof ( dma_addr_t ) ) -#define EFAB_DMA_TYPE_WIDTH( width ) \ - ( ( (width) < DMA_ADDR_T_WIDTH ) ? (width) : DMA_ADDR_T_WIDTH ) -#define EFAB_DMA_MAX_MASK ( ( DMA_ADDR_T_WIDTH == 64 ) ? \ - ~( ( uint64_t ) 0 ) : ~( ( uint32_t ) 0 ) ) -#define EFAB_DMA_MASK(mask) ( (mask) & EFAB_DMA_MAX_MASK ) - -#endif /* EFAB_BITFIELD_H */ - -/* - * Local variables: - * c-basic-offset: 8 - * c-indent-level: 8 - * tab-width: 8 - * End: - */ |