mlx_bitops.h File Reference

Mellanox bit operations. More...

Go to the source code of this file.

Defines

#define MLX_DECLARE_STRUCT(_structure)
 Wrapper structure for pseudo_bit_t structures.
#define MLX_PSEUDO_STRUCT(_ptr)   typeof ( *((_ptr)->u.dummy[0]) )
 Get pseudo_bit_t structure type from wrapper structure pointer.
#define MLX_BIT_OFFSET(_structure_st, _field)   offsetof ( _structure_st, _field )
 Bit 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 offset of a field within a pseudo_bit_t structure.
#define MLX_DWORD_BIT_OFFSET(_structure_st, _index, _field)   ( MLX_BIT_OFFSET ( _structure_st, _field ) - ( 32 * (_index) ) )
 Dword bit offset of a field within a pseudo_bit_t structure.
#define MLX_BIT_WIDTH(_structure_st, _field)   sizeof ( ( ( _structure_st * ) NULL )->_field )
 Bit width of a field within a pseudo_bit_t structure.
#define MLX_BIT_MASK(_structure_st, _field)
 Bit mask for a field within a pseudo_bit_t structure.
#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,...)
#define MLX_ASSEMBLE_3(_structure_st, _index, _field, _value,...)
#define MLX_ASSEMBLE_4(_structure_st, _index, _field, _value,...)
#define MLX_ASSEMBLE_5(_structure_st, _index, _field, _value,...)
#define MLX_ASSEMBLE_6(_structure_st, _index, _field, _value,...)
#define MLX_ASSEMBLE_7(_structure_st, _index, _field, _value,...)
#define MLX_MASK_1(_structure_st, _index, _field)
#define MLX_MASK_2(_structure_st, _index, _field,...)
#define MLX_MASK_3(_structure_st, _index, _field,...)
#define MLX_MASK_4(_structure_st, _index, _field,...)
#define MLX_MASK_5(_structure_st, _index, _field,...)
#define MLX_MASK_6(_structure_st, _index, _field,...)
#define MLX_MASK_7(_structure_st, _index, _field,...)
#define MLX_FILL(_ptr, _index, _assembled)
#define MLX_FILL_1(_ptr, _index,...)
#define MLX_FILL_2(_ptr, _index,...)
#define MLX_FILL_3(_ptr, _index,...)
#define MLX_FILL_4(_ptr, _index,...)
#define MLX_FILL_5(_ptr, _index,...)
#define MLX_FILL_6(_ptr, _index,...)
#define MLX_FILL_7(_ptr, _index,...)
#define MLX_SET(_ptr, _field, _value)
#define MLX_GET(_ptr, _field)

Typedefs

typedef unsigned char pseudo_bit_t

Functions

 FILE_LICENCE (GPL2_OR_LATER)

Detailed Description

Mellanox bit operations.

Definition in file mlx_bitops.h.

Define Documentation

#define MLX_DECLARE_STRUCT ( _structure   ) 

Value:

_structure {                                                         \
            union {                                                          \
                uint8_t bytes[ sizeof ( struct _structure ## _st ) / 8 ];    \
                uint32_t dwords[ sizeof ( struct _structure ## _st ) / 32 ]; \
                struct _structure ## _st *dummy[0];                          \
            } u;                                                             \
        }
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.

Definition at line 43 of file mlx_bitops.h.

#define MLX_PSEUDO_STRUCT ( _ptr   )     typeof ( *((_ptr)->u.dummy[0]) )

Get pseudo_bit_t structure type from wrapper structure pointer.

Definition at line 53 of file mlx_bitops.h.

#define MLX_BIT_OFFSET ( _structure_st,
_field   )     offsetof ( _structure_st, _field )

Bit offset of a field within a pseudo_bit_t structure.

Definition at line 57 of file mlx_bitops.h.

#define MLX_DWORD_OFFSET ( _structure_st,
_field   )     ( MLX_BIT_OFFSET ( _structure_st, _field ) / 32 )

Dword offset of a field within a pseudo_bit_t structure.

Definition at line 61 of file mlx_bitops.h.

#define MLX_DWORD_BIT_OFFSET ( _structure_st,
_index,
_field   )     ( MLX_BIT_OFFSET ( _structure_st, _field ) - ( 32 * (_index) ) )

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.

Definition at line 69 of file mlx_bitops.h.

#define MLX_BIT_WIDTH ( _structure_st,
_field   )     sizeof ( ( ( _structure_st * ) NULL )->_field )

Bit width of a field within a pseudo_bit_t structure.

Definition at line 73 of file mlx_bitops.h.

#define MLX_BIT_MASK ( _structure_st,
_field   ) 

Value:

( ( ~( ( uint32_t ) 0 ) ) >>                                         \
          ( 32 - MLX_BIT_WIDTH ( _structure_st, _field ) ) )
Bit mask for a field within a pseudo_bit_t structure.

Definition at line 77 of file mlx_bitops.h.

#define MLX_ASSEMBLE_1 ( _structure_st,
_index,
_field,
_value   )     ( (_value) << MLX_DWORD_BIT_OFFSET ( _structure_st, _index, _field ) )

Definition at line 86 of file mlx_bitops.h.

#define MLX_ASSEMBLE_2 ( _structure_st,
_index,
_field,
_value,
...   ) 

Value:

( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) |         \
          MLX_ASSEMBLE_1 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 89 of file mlx_bitops.h.

#define MLX_ASSEMBLE_3 ( _structure_st,
_index,
_field,
_value,
...   ) 

Value:

( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) |         \
          MLX_ASSEMBLE_2 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 93 of file mlx_bitops.h.

#define MLX_ASSEMBLE_4 ( _structure_st,
_index,
_field,
_value,
...   ) 

Value:

( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) |         \
          MLX_ASSEMBLE_3 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 97 of file mlx_bitops.h.

#define MLX_ASSEMBLE_5 ( _structure_st,
_index,
_field,
_value,
...   ) 

Value:

( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) |         \
          MLX_ASSEMBLE_4 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 101 of file mlx_bitops.h.

#define MLX_ASSEMBLE_6 ( _structure_st,
_index,
_field,
_value,
...   ) 

Value:

( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) |         \
          MLX_ASSEMBLE_5 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 105 of file mlx_bitops.h.

#define MLX_ASSEMBLE_7 ( _structure_st,
_index,
_field,
_value,
...   ) 

Value:

( MLX_ASSEMBLE_1 ( _structure_st, _index, _field, _value ) |         \
          MLX_ASSEMBLE_6 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 109 of file mlx_bitops.h.

#define MLX_MASK_1 ( _structure_st,
_index,
_field   ) 

Value:

( MLX_BIT_MASK ( _structure_st, _field ) <<                          \
          MLX_DWORD_BIT_OFFSET ( _structure_st, _index, _field ) )

Definition at line 118 of file mlx_bitops.h.

#define MLX_MASK_2 ( _structure_st,
_index,
_field,
...   ) 

Value:

( MLX_MASK_1 ( _structure_st, _index, _field ) |                     \
          MLX_MASK_1 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 122 of file mlx_bitops.h.

#define MLX_MASK_3 ( _structure_st,
_index,
_field,
...   ) 

Value:

( MLX_MASK_1 ( _structure_st, _index, _field ) |                     \
          MLX_MASK_2 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 126 of file mlx_bitops.h.

#define MLX_MASK_4 ( _structure_st,
_index,
_field,
...   ) 

Value:

( MLX_MASK_1 ( _structure_st, _index, _field ) |                     \
          MLX_MASK_3 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 130 of file mlx_bitops.h.

#define MLX_MASK_5 ( _structure_st,
_index,
_field,
...   ) 

Value:

( MLX_MASK_1 ( _structure_st, _index, _field ) |                     \
          MLX_MASK_4 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 134 of file mlx_bitops.h.

#define MLX_MASK_6 ( _structure_st,
_index,
_field,
...   ) 

Value:

( MLX_MASK_1 ( _structure_st, _index, _field ) |                     \
          MLX_MASK_5 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 138 of file mlx_bitops.h.

#define MLX_MASK_7 ( _structure_st,
_index,
_field,
...   ) 

Value:

( MLX_MASK_1 ( _structure_st, _index, _field ) |                     \
          MLX_MASK_6 ( _structure_st, _index, __VA_ARGS__ ) )

Definition at line 142 of file mlx_bitops.h.

#define MLX_FILL ( _ptr,
_index,
_assembled   ) 

Value:

do {                                                                 \
                uint32_t *__ptr = &(_ptr)->u.dwords[(_index)];               \
                uint32_t __assembled = (_assembled);                         \
                *__ptr = cpu_to_be32 ( __assembled );                        \
        } while ( 0 )

Definition at line 151 of file mlx_bitops.h.

#define MLX_FILL_1 ( _ptr,
_index,
...   ) 

Value:

MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_1 ( MLX_PSEUDO_STRUCT ( _ptr ),\
                                                  _index, __VA_ARGS__ ) )

Definition at line 158 of file mlx_bitops.h.

Referenced by arbel_alloc_icm(), arbel_cmd(), arbel_complete(), arbel_create_cq(), arbel_create_eq(), arbel_create_qp(), arbel_create_recv_wq(), arbel_create_send_wq(), arbel_destroy_cq(), arbel_destroy_eq(), arbel_destroy_qp(), arbel_modify_qp(), arbel_open(), arbel_poll_cq(), arbel_poll_eq(), arbel_post_recv(), arbel_post_send(), arbel_probe(), arbel_setup_mpt(), hermon_alloc_icm(), hermon_alloc_mtt(), hermon_cmd(), hermon_create_cq(), hermon_create_eq(), hermon_create_qp(), hermon_destroy_eq(), hermon_fill_mlx_send_wqe(), hermon_fill_rc_send_wqe(), hermon_fill_ud_send_wqe(), hermon_free_icm(), hermon_map_vpm(), hermon_mcast_attach(), hermon_modify_qp(), hermon_open(), hermon_poll_cq(), hermon_poll_eq(), hermon_post_recv(), hermon_post_send(), hermon_probe(), and hermon_setup_mpt().

#define MLX_FILL_2 ( _ptr,
_index,
...   ) 

Value:

MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_2 ( MLX_PSEUDO_STRUCT ( _ptr ),\
                                                  _index, __VA_ARGS__ ) )

Definition at line 162 of file mlx_bitops.h.

Referenced by arbel_alloc_icm(), arbel_create_cq(), arbel_create_qp(), arbel_mcast_attach(), arbel_post_send(), arbel_start_firmware(), hermon_alloc_icm(), hermon_alloc_mtt(), hermon_create_cq(), hermon_create_qp(), hermon_fill_ud_send_wqe(), hermon_map_vpm(), hermon_modify_qp(), hermon_open(), and hermon_post_send().

#define MLX_FILL_3 ( _ptr,
_index,
...   ) 

Value:

MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_3 ( MLX_PSEUDO_STRUCT ( _ptr ),\
                                                  _index, __VA_ARGS__ ) )

Definition at line 166 of file mlx_bitops.h.

Referenced by arbel_cmd(), arbel_create_qp(), arbel_open(), and arbel_post_send().

#define MLX_FILL_4 ( _ptr,
_index,
...   ) 

Value:

MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_4 ( MLX_PSEUDO_STRUCT ( _ptr ),\
                                                  _index, __VA_ARGS__ ) )

Definition at line 170 of file mlx_bitops.h.

Referenced by arbel_post_send(), arbel_setup_mpt(), hermon_cmd(), and hermon_create_qp().

#define MLX_FILL_5 ( _ptr,
_index,
...   ) 

Value:

MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_5 ( MLX_PSEUDO_STRUCT ( _ptr ),\
                                                  _index, __VA_ARGS__ ) )

Definition at line 174 of file mlx_bitops.h.

Referenced by hermon_fill_mlx_send_wqe().

#define MLX_FILL_6 ( _ptr,
_index,
...   ) 

Value:

MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_6 ( MLX_PSEUDO_STRUCT ( _ptr ),\
                                                  _index, __VA_ARGS__ ) )

Definition at line 178 of file mlx_bitops.h.

Referenced by arbel_create_qp().

#define MLX_FILL_7 ( _ptr,
_index,
...   ) 

Value:

MLX_FILL ( _ptr, _index, MLX_ASSEMBLE_7 ( MLX_PSEUDO_STRUCT ( _ptr ),\
                                                  _index, __VA_ARGS__ ) )

Definition at line 182 of file mlx_bitops.h.

Referenced by hermon_setup_mpt().

#define MLX_SET ( _ptr,
_field,
_value   ) 

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 )

Definition at line 191 of file mlx_bitops.h.

Referenced by arbel_post_send().

#define MLX_GET ( _ptr,
_field   ) 

Value:

( {                                                                  \
                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;                                                     \
        } )

Definition at line 209 of file mlx_bitops.h.

Referenced by arbel_alloc_icm(), arbel_cmd(), arbel_cmd_wait(), arbel_complete(), arbel_event_port_state_change(), arbel_get_limits(), arbel_mcast_attach(), arbel_mcast_detach(), arbel_poll_cq(), arbel_poll_eq(), arbel_start_firmware(), hermon_alloc_icm(), hermon_cmd(), hermon_cmd_wait(), hermon_complete(), hermon_event_port_state_change(), hermon_get_cap(), hermon_mcast_attach(), hermon_mcast_detach(), hermon_poll_cq(), hermon_poll_eq(), hermon_sense_port_type(), and hermon_start_firmware().

Typedef Documentation

typedef unsigned char pseudo_bit_t

Definition at line 32 of file mlx_bitops.h.

Function Documentation

FILE_LICENCE ( GPL2_OR_LATER   ) 

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