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Commit 1f27adc2 authored by Dan Williams's avatar Dan Williams
Browse files

ioat: move definitions to dma.h 



Some of these defines may be useful outside of dma.c and the header is
private so there are no namespace pollution concerns.

Signed-off-by: default avatarMaciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 584ec227

drivers/dma/ioat/dma.c

+0 −14
Original line number Diff line number Diff line
@@ -38,28 +38,14 @@ 
#include "registers.h"

#include "hw.h"



#define to_ioat_chan(chan) container_of(chan, struct ioat_dma_chan, common)

#define to_ioatdma_device(dev) container_of(dev, struct ioatdma_device, common)

#define to_ioat_desc(lh) container_of(lh, struct ioat_desc_sw, node)

#define tx_to_ioat_desc(tx) container_of(tx, struct ioat_desc_sw, async_tx)



#define chan_num(ch) ((int)((ch)->reg_base - (ch)->device->reg_base) / 0x80)

static int ioat_pending_level = 4;

module_param(ioat_pending_level, int, 0644);

MODULE_PARM_DESC(ioat_pending_level,

		 "high-water mark for pushing ioat descriptors (default: 4)");



#define RESET_DELAY  msecs_to_jiffies(100)

#define WATCHDOG_DELAY  round_jiffies(msecs_to_jiffies(2000))

static void ioat_dma_chan_reset_part2(struct work_struct *work);

static void ioat_dma_chan_watchdog(struct work_struct *work);



/*

 * workaround for IOAT ver.3.0 null descriptor issue

 * (channel returns error when size is 0)

 */

#define NULL_DESC_BUFFER_SIZE 1



/* internal functions */

static void ioat_dma_start_null_desc(struct ioat_dma_chan *ioat_chan);

static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan);

drivers/dma/ioat/dma.h

+16 −0
Original line number Diff line number Diff line
@@ -43,6 +43,22 @@ enum ioat_interrupt { 
#define IOAT_DMA_DCA_ANY_CPU		~0

#define IOAT_WATCHDOG_PERIOD		(2 * HZ)



#define to_ioat_chan(chan) container_of(chan, struct ioat_dma_chan, common)

#define to_ioatdma_device(dev) container_of(dev, struct ioatdma_device, common)

#define to_ioat_desc(lh) container_of(lh, struct ioat_desc_sw, node)

#define tx_to_ioat_desc(tx) container_of(tx, struct ioat_desc_sw, async_tx)



#define chan_num(ch) ((int)((ch)->reg_base - (ch)->device->reg_base) / 0x80)



#define RESET_DELAY  msecs_to_jiffies(100)

#define WATCHDOG_DELAY  round_jiffies(msecs_to_jiffies(2000))



/*

 * workaround for IOAT ver.3.0 null descriptor issue

 * (channel returns error when size is 0)

 */

#define NULL_DESC_BUFFER_SIZE 1





/**

 * struct ioatdma_device - internal representation of a IOAT device