On 9/23/2015 12:27 AM, Bart Van Assche wrote:
On 09/17/2015 02:42 AM, Sagi Grimberg wrote:+static int +mlx5_alloc_priv_descs(struct ib_device *device, + struct mlx5_ib_mr *mr, + int ndescs, + int desc_size) +{ + int size = ndescs * desc_size; + + mr->descs = dma_alloc_coherent(device->dma_device, size, + &mr->desc_map, GFP_KERNEL); + if (!mr->descs) + return -ENOMEM; + + return 0; +}Would it be possible to clarify the choice for coherent memory ?
No specific reason. I was just copying alloc_fastreg_page_list logic.
Would performance be better if non-coherent memory would be used and if memory would be synced after initialization of desc_map has finished ?
It probably would I assume. I'll change that. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
