diff options
Diffstat (limited to 'drivers/dma/ioat/dma.h')
| -rw-r--r-- | drivers/dma/ioat/dma.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h index 5f2f9fbcf184..57a9b83db455 100644 --- a/drivers/dma/ioat/dma.h +++ b/drivers/dma/ioat/dma.h @@ -62,7 +62,6 @@ enum ioat_irq_mode { * struct ioatdma_device - internal representation of a IOAT device * @pdev: PCI-Express device * @reg_base: MMIO register space base address - * @dma_pool: for allocating DMA descriptors * @completion_pool: DMA buffers for completion ops * @sed_hw_pool: DMA super descriptor pools * @dma_dev: embedded struct dma_device @@ -76,7 +75,6 @@ enum ioat_irq_mode { struct ioatdma_device { struct pci_dev *pdev; void __iomem *reg_base; - struct dma_pool *dma_pool; struct dma_pool *completion_pool; #define MAX_SED_POOLS 5 struct dma_pool *sed_hw_pool[MAX_SED_POOLS]; @@ -90,6 +88,11 @@ struct ioatdma_device { u32 cap; }; +struct ioat_descs { + void *virt; + dma_addr_t hw; +}; + struct ioatdma_chan { struct dma_chan dma_chan; void __iomem *reg_base; @@ -132,6 +135,8 @@ struct ioatdma_chan { u16 produce; struct ioat_ring_ent **ring; spinlock_t prep_lock; + struct ioat_descs descs[2]; + int desc_chunks; }; struct ioat_sysfs_entry { @@ -301,6 +306,8 @@ static inline bool is_ioat_bug(unsigned long err) } #define IOAT_MAX_ORDER 16 +#define IOAT_MAX_DESCS 65536 +#define IOAT_DESCS_PER_2M 32768 static inline u32 ioat_ring_size(struct ioatdma_chan *ioat_chan) { |