Quoting r. Roland Dreier <[EMAIL PROTECTED]>: > Subject: Re: How about ib_send_page() ? > > Jeff> (side note: it would seem IPoIB could be re-written to > Jeff> dramatically improve it's performance). > > Out of curiousity, what would the rewrite change to obtain better > performance? > > Thanks, > Roland
I have some ideas worth investigating: 1. I think an option to enable zero copy would help for the send side. This means we have to set NETIF_F_NO_CSUM so it likely cant be done with current hardware without breaking IPoverIB spec compliance, but we dont need a spec just to write code. 2. I dont think NAPI was ever tried on gen2 code. Worth a try? Might help more in combination with (1). 3. There's a draft for connected mode. That would increase the MTU and so help the receive side as well. -- MST - Michael S. Tsirkin _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
