Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d64b1592 authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

mlxsw: item: Add MLXSW_ITEM_BUF_INDEXED helper 



Add missing item helper which allows to access char bufs on multiple
offsets. This is needed by SFD and SFN register definitions.

Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7b0989b5

drivers/net/ethernet/mellanox/mlxsw/item.h

+40 −6
Original line number Diff line number Diff line
@@ -171,15 +171,21 @@ static inline void __mlxsw_item_set64(char *buf, struct mlxsw_item *item, 
}



static inline void __mlxsw_item_memcpy_from(char *buf, char *dst,

					    struct mlxsw_item *item)

					    struct mlxsw_item *item,

					    unsigned short index)

{

	memcpy(dst, &buf[item->offset], item->size.bytes);

	unsigned int offset = __mlxsw_item_offset(item, index, sizeof(char));



	memcpy(dst, &buf[offset], item->size.bytes);

}



static inline void __mlxsw_item_memcpy_to(char *buf, const char *src,

					  struct mlxsw_item *item)

					  struct mlxsw_item *item,

					  unsigned short index)

{

	memcpy(&buf[item->offset], src, item->size.bytes);

	unsigned int offset = __mlxsw_item_offset(item, index, sizeof(char));



	memcpy(&buf[offset], src, item->size.bytes);

}



static inline u16
@@ -371,12 +377,40 @@ static struct mlxsw_item __ITEM_NAME(_type, _cname, _iname) = { \ 
static inline void								\

mlxsw_##_type##_##_cname##_##_iname##_memcpy_from(char *buf, char *dst)		\

{										\

	__mlxsw_item_memcpy_from(buf, dst, &__ITEM_NAME(_type, _cname, _iname));\

	__mlxsw_item_memcpy_from(buf, dst,					\

				 &__ITEM_NAME(_type, _cname, _iname), 0);	\

}										\

static inline void								\

mlxsw_##_type##_##_cname##_##_iname##_memcpy_to(char *buf, const char *src)	\

{										\

	__mlxsw_item_memcpy_to(buf, src, &__ITEM_NAME(_type, _cname, _iname));	\

	__mlxsw_item_memcpy_to(buf, src,					\

			       &__ITEM_NAME(_type, _cname, _iname), 0);		\

}



#define MLXSW_ITEM_BUF_INDEXED(_type, _cname, _iname, _offset, _sizebytes,	\

			       _step, _instepoffset)				\

static struct mlxsw_item __ITEM_NAME(_type, _cname, _iname) = {			\

	.offset = _offset,							\

	.step = _step,								\

	.in_step_offset = _instepoffset,					\

	.size = {.bytes = _sizebytes,},						\

	.name = #_type "_" #_cname "_" #_iname,					\

};										\

static inline void								\

mlxsw_##_type##_##_cname##_##_iname##_memcpy_from(char *buf,			\

						  unsigned short index,		\

						  char *dst)			\

{										\

	__mlxsw_item_memcpy_from(buf, dst,					\

				 &__ITEM_NAME(_type, _cname, _iname), index);	\

}										\

static inline void								\

mlxsw_##_type##_##_cname##_##_iname##_memcpy_to(char *buf,			\

						unsigned short index,		\

						const char *src)		\

{										\

	__mlxsw_item_memcpy_to(buf, src,					\

			       &__ITEM_NAME(_type, _cname, _iname), index);	\

}



#define MLXSW_ITEM_BIT_ARRAY(_type, _cname, _iname, _offset, _sizebytes,	\