Re: [RFC PATCH 00/10] Device Memory TCP

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On Tue, 18 Jul 2023 12:20:59 -0600 David Ahern wrote:
> On 7/18/23 12:15 PM, Jakub Kicinski wrote:
> > On Tue, 18 Jul 2023 15:06:29 -0300 Jason Gunthorpe wrote:  
> >> netlink feels like a weird API choice for that, in particular it would
> >> be really wrong to somehow bind the lifecycle of a netlink object to a
> >> process.  
> > 
> > Netlink is the right API, life cycle of objects can be easily tied to
> > a netlink socket.  
> 
> That is an untuitive connection -- memory references, h/w queues, flow
> steering should be tied to the datapath socket, not a control plane socket.

There's one RSS context for may datapath sockets. Plus a lot of the
APIs already exist, and it's more of a question of packaging them up 
at the user space level. For things which do not have an API, however,
netlink, please.



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