Messages in this thread |  | | Date | Wed, 15 Jul 2020 16:43:15 +0530 | From | Vinod Koul <> | Subject | Re: [PATCH v7 04/11] dmaengine: Introduce max SG list entries capability |
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On 10-07-20, 19:14, Serge Semin wrote: > On Fri, Jul 10, 2020 at 02:51:33PM +0300, Peter Ujfalusi wrote:
> > 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
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