Re: [PATCH v7 04/11] dmaengine: Introduce max SG list entries capability

On 10-07-20, 19:14, Serge Semin wrote:

On Fri, Jul 10, 2020 at 02:51:33PM +0300, Peter Ujfalusi wrote:

quoted

Since we should be able to handle longer lists and this is kind of a
hint for clients that above this number of nents the list will be broken
up to smaller 'bursts', which when traversing could cause latency.

sg_chunk_len might be another candidate.

Ok. We've got four candidates:
- max_sg_nents_burst
- max_sg_burst
- max_sg_chain
- sg_chunk_len

@Vinod, @Andy, what do you think?

So IIUC your hw supports single sg and in that you would like to publish
the length of each chunk, is that correct? If so sg_chunk_len seems
apt..

-- 
~Vinod