diff options
| author | Leonid Ravich <Leonid.Ravich@emc.com> | 2020-04-16 20:06:21 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-04-17 17:28:39 +0530 |
| commit | bd2bf302eef21aafa6da2cf829b87a9e33150658 (patch) | |
| tree | 1887924dc5c14c2c3e5eec3d3f8289474e184c99 /drivers/dma/ioat/dma.h | |
| parent | 2fea2906b5cbeffe49911e4735451af62fc121b4 (diff) | |
dmaengine: ioat: fixing chunk sizing macros dependency
changing macros which assumption is chunk size of 2M,
which can be other size
prepare for changing allocation chunk size.
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Leonid Ravich <Leonid.Ravich@emc.com>
Link: https://lore.kernel.org/r/20200416170628.16196-1-leonid.ravich@dell.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/ioat/dma.h')
| -rw-r--r-- | drivers/dma/ioat/dma.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h index b8e8e0b9693c..5216c6b7c99e 100644 --- a/drivers/dma/ioat/dma.h +++ b/drivers/dma/ioat/dma.h @@ -81,6 +81,11 @@ struct ioatdma_device { u32 msixpba; }; +#define IOAT_MAX_ORDER 16 +#define IOAT_MAX_DESCS (1 << IOAT_MAX_ORDER) +#define IOAT_CHUNK_SIZE (SZ_2M) +#define IOAT_DESCS_PER_CHUNK (IOAT_CHUNK_SIZE / IOAT_DESC_SZ) + struct ioat_descs { void *virt; dma_addr_t hw; @@ -128,7 +133,7 @@ struct ioatdma_chan { u16 produce; struct ioat_ring_ent **ring; spinlock_t prep_lock; - struct ioat_descs descs[2]; + struct ioat_descs descs[IOAT_MAX_DESCS / IOAT_DESCS_PER_CHUNK]; int desc_chunks; int intr_coalesce; int prev_intr_coalesce; @@ -301,9 +306,6 @@ static inline bool is_ioat_bug(unsigned long err) return !!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) { |