This allows claiming of non-RAID channels as a private channel. This prevents breakage of MDRAID using the IOATDMA channels via async_tx but also allows agents such as NTB to claim channels exclusively for its usages. Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx> --- drivers/dma/ioat/dma_v3.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index 64790a4..8fbffd0 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -1694,6 +1694,9 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca) } } + if (!(device->cap & (IOAT_CAP_XOR | IOAT_CAP_PQ))) + dma_cap_set(DMA_PRIVATE, dma->cap_mask); + err = ioat_probe(device); if (err) return err; -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
