Quoting r. Sean Hefty <[EMAIL PROTECTED]>: > Subject: Re: Re: Re: RFC: e2e credits > > Michael S. Tsirkin wrote: > >>Okay - I'm confused now. Why have this value at all? How does the > >>statement above match up with C9-150.2.1: For QPs that are not associated > >>with an SRQ, each HCA receive queue shall generate end-to-end flow > >>control credits? > > > > > >Donnu. > >All this is a bit theoretical since all ULPs today always post > >receive WQEs before remote side posts sends. > >So they all can just safely disable this bit and avoid the chance > >of getting into limited state. > > Right now, I'm leaning towards the idea of disabling flow control by > default, and enabling it by request. Are we sure that none of the ULPs > (SDP, SRP, iSCSI, etc.) make use of this? > > Making this a QP tunable parameter seems more difficult.
I can speak for SDP. It doesn't use this. Can SRP/iSCSI maintainers please speak up? -- Michael S. Tsirkin Staff Engineer, Mellanox Technologies _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
