dma_v2.h File Reference

#include <linux/dmaengine.h>
#include <linux/circ_buf.h>
#include "dma.h"
#include "hw.h"

Go to the source code of this file.

Data Structures
struct	ioat2_dma_chan
struct	ioat_ring_ent

Macros
#define	NULL_DESC_BUFFER_SIZE   1
#define	IOAT_MAX_ORDER   16
#define	ioat_get_alloc_order()   (min(ioat_ring_alloc_order, IOAT_MAX_ORDER))
#define	ioat_get_max_alloc_order()   (min(ioat_ring_max_alloc_order, IOAT_MAX_ORDER))

Functions
int __devinit	ioat2_dma_probe (struct ioatdma_device *dev, int dca)
int __devinit	ioat3_dma_probe (struct ioatdma_device *dev, int dca)
struct dca_provider *__devinit	ioat2_dca_init (struct pci_dev *pdev, void __iomem *iobase)
struct dca_provider *__devinit	ioat3_dca_init (struct pci_dev *pdev, void __iomem *iobase)
int	ioat2_check_space_lock (struct ioat2_dma_chan *ioat, int num_descs)
int	ioat2_enumerate_channels (struct ioatdma_device *device)
struct dma_async_tx_descriptor *	ioat2_dma_prep_memcpy_lock (struct dma_chan *c, dma_addr_t dma_dest, dma_addr_t dma_src, size_t len, unsigned long flags)
void	ioat2_issue_pending (struct dma_chan *chan)
int	ioat2_alloc_chan_resources (struct dma_chan *c)
void	ioat2_free_chan_resources (struct dma_chan *c)
void	__ioat2_restart_chan (struct ioat2_dma_chan *ioat)
bool	reshape_ring (struct ioat2_dma_chan *ioat, int order)
void	__ioat2_issue_pending (struct ioat2_dma_chan *ioat)
void	ioat2_cleanup_event (unsigned long data)
void	ioat2_timer_event (unsigned long data)
int	ioat2_quiesce (struct ioat_chan_common *chan, unsigned long tmo)
int	ioat2_reset_sync (struct ioat_chan_common *chan, unsigned long tmo)

Variables
int	ioat_pending_level
int	ioat_ring_alloc_order
struct kobj_type	ioat2_ktype
struct kmem_cache *	ioat2_cache

Macro Definition Documentation

#define ioat_get_alloc_order

(

)

(min(ioat_ring_alloc_order, IOAT_MAX_ORDER))

Definition at line 40 of file dma_v2.h.

#define ioat_get_max_alloc_order

(

)

(min(ioat_ring_max_alloc_order, IOAT_MAX_ORDER))

Definition at line 42 of file dma_v2.h.

#define IOAT_MAX_ORDER   16

Definition at line 39 of file dma_v2.h.

#define NULL_DESC_BUFFER_SIZE   1

Definition at line 37 of file dma_v2.h.

Function Documentation

void __ioat2_issue_pending

(

struct ioat2_dma_chan *

ioat

)

Definition at line 56 of file dma_v2.c.

void __ioat2_restart_chan

(

struct ioat2_dma_chan *

ioat

)

Definition at line 198 of file dma_v2.c.

int ioat2_alloc_chan_resources

(

struct dma_chan *

c

)

Definition at line 500 of file dma_v2.c.

int ioat2_check_space_lock	(	struct ioat2_dma_chan *	ioat,
		int	num_descs
	)

ioat2_check_space_lock - verify space and grab ring producer lock : ioat2,3 channel (ring) to operate on : allocation length

Definition at line 678 of file dma_v2.c.

void ioat2_cleanup_event

(

unsigned long

data

)

Definition at line 190 of file dma_v2.c.

struct dca_provider* __devinit ioat2_dca_init ( struct pci_dev *  pdev, void __iomem *  iobase  )

read

Definition at line 412 of file dca.c.

struct dma_async_tx_descriptor* ioat2_dma_prep_memcpy_lock ( struct dma_chan *  c, dma_addr_t  dma_dest, dma_addr_t  dma_src, size_t  len, unsigned long  flags  )

read

Definition at line 732 of file dma_v2.c.

int __devinit ioat2_dma_probe	(	struct ioatdma_device *	dev,
		int	dca
	)

Definition at line 865 of file dma_v2.c.

int ioat2_enumerate_channels

(

struct ioatdma_device *

device

)

ioat2_enumerate_channels - find and initialize the device's channels : the device to be enumerated

Definition at line 353 of file dma_v2.c.

void ioat2_free_chan_resources

(

struct dma_chan *

c

)

ioat2_free_chan_resources - release all the descriptors : the channel to be cleaned

Definition at line 781 of file dma_v2.c.

void ioat2_issue_pending

(

struct dma_chan *

chan

)

Definition at line 68 of file dma_v2.c.

int ioat2_quiesce	(	struct ioat_chan_common *	chan,
		unsigned long	tmo
	)

Definition at line 222 of file dma_v2.c.

int ioat2_reset_sync	(	struct ioat_chan_common *	chan,
		unsigned long	tmo
	)

Definition at line 243 of file dma_v2.c.

void ioat2_timer_event

(

unsigned long

data

)

Definition at line 272 of file dma_v2.c.

struct dca_provider* __devinit ioat3_dca_init ( struct pci_dev *  pdev, void __iomem *  iobase  )

read

Definition at line 608 of file dca.c.

int __devinit ioat3_dma_probe	(	struct ioatdma_device *	dev,
		int	dca
	)

Definition at line 1190 of file dma_v3.c.

bool reshape_ring	(	struct ioat2_dma_chan *	ioat,
		int	order
	)

Definition at line 566 of file dma_v2.c.

Variable Documentation

struct kmem_cache* ioat2_cache

Definition at line 120 of file pci.c.

struct kobj_type ioat2_ktype

Definition at line 860 of file dma_v2.c.

int ioat_pending_level

Definition at line 45 of file dma.c.

int ioat_ring_alloc_order

Definition at line 46 of file dma_v2.c.