> > > There were discussions, and Mellanox even contributed code to the effort. > See Kamal's patches in the patch set I provided. > As far as I see it discussions were shallow and never produced an agreement. Kamal's patches should not be considered as as such. >> http://marc.info/?l=linux-rdma&m=144952098726776&w=2 presents a work >> that besides keeping the name RVT is far from the immature concept I >> mentioned earlier and its scope was changed from general purpose >> solution to Intel and HFI/QIB only. > > > The scope has never changed. Our goal is, and has always been to remove the > code duplication between qib and hfi1. We are doing that by way of rdmavt. > It is limited in scope to Intel's drivers currently for what I hope are > obvious reasons. > So you actually agree that rdmavt was intended to be a solution to Intel's specific drivers. Fair, but IMO this is not what we aimed for. In fact, if this is an Intel specific solution then why put it in drivers/infiniband/sw and why publish it when it is not ready? > I think it makes sense that soft-roce be added as well and hope that > Mellanox decides to contribute rather than reinventing the wheel. > > Is there something in rdmavt that would not work for soft-roce, or is > something fundamental missing? I have asked this a number of times and > nothing has been raised so I assume there are no issues. If there are lets > discuss them. > Interfaces between rdmavt and its backends are missing. I consider this as fundamental. Concerns were raised but answers were not provided, at least not satisfying answers. > Reading through your RFC here, perhaps something like the multicast add > and delete is concerning? This is something that is not really needed by > qib and hfi1 but may be for soft-roce. All that means is soft-roce needs to > provide it and it would be optional for qib and hfi1. The rdmavt > architecture is flexible and allows exactly this. > >> I therefore conclude that the >> concept of RVT, as it was supposed to be, was abandoned. > > > This is absolutely incorrect. As mentioned above, nothing has changed. > > > -Denny > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
