Re: [PATCH RFC] RDMA/core: Store zero GIDs in some cases

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On Fri, Apr 28, 2023 at 01:42:24PM +0000, Chuck Lever III wrote:
> 
> 
> > On Apr 28, 2023, at 9:39 AM, Jason Gunthorpe <jgg@xxxxxxxx> wrote:
> > 
> > On Thu, Apr 27, 2023 at 01:14:43PM -0400, Chuck Lever wrote:
> >> From: Bernard Metzler <bmt@xxxxxxxxxxxxxx>
> >> 
> >> Tunnel devices have zero GIDs, so skip the zero GID check when
> >> setting up soft iWARP over a tunnel device.
> > 
> > Huh? Why? How does that make any sense?
> 
> Read it as a cry for help.
> 
> The scenario is attempting to set up a soft iWARP device
> with a slave that is a tunnel device. The set up seems to
> work, but when connecting, the ULP gets an ADDR_ERROR
> because the setup did not add an entry to the GID table.

Don't assign a 0 IP to the tunnel?

Jason



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