On Mon, Apr 07, 2025 at 10:14:28AM -0400, Sean Anderson wrote: > On 4/7/25 03:10, Hannes Reinecke wrote: > > > > The driver surely can. You should be able to set 'max_segment_size' to > > the logical block size, and that should give you what you want. > > But couldn't I get segments smaller than that? max_segment_size seems like > it would only restrict the maximum size, leaving the possibility open for > smaller segments. If your driver never wants to see segments smaller than the logical block, you could update your queue_limits dma_alignment to be logical_block_size - 1. It is 511 by default so works for you only if logical block size == SECTOR_SIZE.
