dma_common_get_sgtable

函数名称：Create scatter-list for the already allocated DMA buffer.

函数原型：int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, void *cpu_addr, dma_addr_t dma_addr, size_t size, unsigned long attrs)

返回类型：int

参数：

类型	参数	名称
struct device *	dev
struct sg_table *	sgt
void *	cpu_addr
dma_addr_t	dma_addr
size_t	size
unsigned long	attrs

115

page等于virt_to_page(kaddr) returns a valid pointer if and only if* virt_addr_valid(kaddr) returns true.(cpu_addr)

118

ret等于sg_alloc_table - Allocate and initialize an sg table*@table: The sg table header to use*@nents: Number of entries in sg list*@gfp_mask: GFP allocation mask* Description:* Allocate and initialize an sg table. If @nents@ is larger than

119

如果非ret则sg_set_page - Set sg entry to point at given page*@sg: SG entry*@page: The page*@len: Length of data*@offset: Offset into page* Description:* Use this function to set an sg entry pointing at a page, never assign* the page directly

121

返回:ret

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码