On 8/3/22 18:50, yohan.joung@xxxxxx wrote:
In block layer, max_segment_size is obtained from get_max_segment_size. seg_boundary_mask is set to PAGE_SIZE - 1 in the ufs driver. The segment size is the PAGE size, and the max buffer size is segment size * max segment count ( PAGE SIZE * 128 ) = 512 KiB in block layer Right?
Thanks for having reported this. I had overlooked that the UFS host controller driver sets the dma_boundary member of the host_template field. Is my understanding correct that UFS host controllers should support DMA segments that consist of multiple physical pages?
Thanks, Bart.
