On Thu, 2006-06-29 at 12:46 -0700, David Miller wrote: > From: Roland Dreier <[EMAIL PROTECTED]> > Date: Thu, 29 Jun 2006 09:54:37 -0700 > > > In any case I think we need to find a way for Linux to support iWARP > > hardware, since there are users that want this, and (some of) the > > vendors are working hard to do things the right way (including cc'ing > > netdev on the conversation). I don't think it's good for Linux for > > the answer to just be, "sorry, you're wrong to want to use that hardware." > > We give the same response for TOE stuff.
What does the word "we" represent in this context? Is it the Linux community at large, Linux and Andrew, you? I'm not trying to be argumentative, I just want to understand how carefully and by whom iWARP technology has been considered. > > The integration of iWARP with the Linux networking, while much better > than TOE, is still heavily flawed. > > What most people might not realize when using this stuff is that: Agreed, the patch improves some things, but doesn't address others. But isn't this position a condemnation of the good to spite the bad? > > 1) None of their firewall rules will apply to the iWARP communications. > 2) None of their packet scheduling configurations can be applied to > the iWARP communications. > 3) It is not possible to encapsulate iWARP traffic in IPSEC > > And the list goes on and on. It does, however, this position statement makes things worse, not better. By this I mean that deep adapters (iSCSI, iWARP) are even more debilitated by not being able to snoop MTU changes, etc... and are therefore forced to duplicate sub-systems (e.g. ARP, ICMP, ...) already ably implemented in host software. > This is what we don't like about technologies that implement their own > networking stack in the card firmware. Doesn't this position force vendors to build deeper adapters, not shallower adapters? Isn't this exactly the opposite of what is intended? > > - > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
