dxd::pci::scatter_gather< limit_t, alignment_t, page_size_t > Class Template Reference

#include <dxd_pci.h>

Public Member Functions
void	free ()
template<class sgl_t>
os_result	initialize (const pci &pci, ::MDL *mdl, unsigned int &pages, sgl_t &sgl, unsigned int limit=limit_t, unsigned int alignment=alignment_t, unsigned int page_size=page_size_t)
	scatter_gather ()=default
template<class sgl_t>
	scatter_gather (pci &pci, ::MDL *mdl, unsigned int &pages, sgl_t &sgl, unsigned int limit=limit_t, unsigned int alignment=alignment_t, unsigned int page_size=page_size_t)
virtual	~scatter_gather ()

Public Attributes
os_result	status =not_initialized

Detailed Description

template<unsigned int limit_t = 64, unsigned int alignment_t = 0, unsigned int page_size_t = 0>
class dxd::pci::scatter_gather< limit_t, alignment_t, page_size_t >

Todo

templatize endianism!

Constructor & Destructor Documentation

scatter_gather() [1/2]

template<unsigned int limit_t = 64, unsigned int alignment_t = 0, unsigned int page_size_t = 0>

dxd::pci::scatter_gather< limit_t, alignment_t, page_size_t >::scatter_gather ( )

default

scatter_gather() [2/2]

template<unsigned int limit_t = 64, unsigned int alignment_t = 0, unsigned int page_size_t = 0>

template<class sgl_t>

dxd::pci::scatter_gather< limit_t, alignment_t, page_size_t >::scatter_gather ( pci & pci, ::MDL * mdl, unsigned int & pages, sgl_t & sgl, unsigned int limit = limit_t, unsigned int alignment = alignment_t, unsigned int page_size = page_size_t )

inline

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~scatter_gather()

template<unsigned int limit_t = 64, unsigned int alignment_t = 0, unsigned int page_size_t = 0>

virtual dxd::pci::scatter_gather< limit_t, alignment_t, page_size_t >::~scatter_gather ( )

inline

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Member Function Documentation

free()

template<unsigned int limit_t = 64, unsigned int alignment_t = 0, unsigned int page_size_t = 0>

void dxd::pci::scatter_gather< limit_t, alignment_t, page_size_t >::free ( )

inline

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initialize()

template<unsigned int limit_t = 64, unsigned int alignment_t = 0, unsigned int page_size_t = 0>

template<class sgl_t>

os_result dxd::pci::scatter_gather< limit_t, alignment_t, page_size_t >::initialize ( const pci & pci, ::MDL * mdl, unsigned int & pages, sgl_t & sgl, unsigned int limit = limit_t, unsigned int alignment = alignment_t, unsigned int page_size = page_size_t )

inline

Allows re-initialization,

checks backing store,

checks and obtains DMA adapter from PCI device,

checks if DMA adapter operations are initialized,

Todo

iterate GetScatterGatherList over mdl size until map_registers*PAGE_SIZE: http://www.osronline.com/article.cfm?id=55

obtains and returns WDK SGL segments to callers local stack space

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Member Data Documentation

status

template<unsigned int limit_t = 64, unsigned int alignment_t = 0, unsigned int page_size_t = 0>

os_result dxd::pci::scatter_gather< limit_t, alignment_t, page_size_t >::status =not_initialized

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The documentation for this class was generated from the following file:

• dxd_pci.h