From: Jason Gunthorpe <jgg@nvidia.com>
To: Bob Pearson <rpearsonhpe@gmail.com>
Cc: <linux-rdma@vger.kernel.org>
Subject: Re: pyverbs testing on rxe
Date: Fri, 4 Sep 2020 15:20:00 -0300 [thread overview]
Message-ID: <20200904182000.GA9166@nvidia.com> (raw)
In-Reply-To: <96da1311-18a6-f6a6-be18-9ca034ae1d7b@gmail.com>
On Fri, Sep 04, 2020 at 01:03:40PM -0500, Bob Pearson wrote:
> The unicast IPv4 address is 192.168.0.21 which does have a gid table
> entry. The multicast address is 230.168.0.21 which does
> not. Presumably the driver wants the gid table entry so it can use
> it to provide a source address for return traffic but that would
> just be the unicast address I think.
What is the call stack like around this?
It should be using a route lookup to get the src IP to map to a gid
address
> BTW I got around the other addressing problem I was having by just
> adding the eui48 IPV5 address by hand with ip addr add.
Hum, seems like this is still a core code bug that should be fixed
though
Jason
prev parent reply other threads:[~2020-09-04 18:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 18:03 pyverbs testing on rxe Bob Pearson
2020-09-04 18:20 ` Jason Gunthorpe [this message]
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