AFAIK, RoCE v2 is the known and official name. Why would we like to come
up with a customized name?
These are indeed two different protocols, thus the comparison to DHCP
assigned addresses and static addresses is (to say the least) a bit off.
Even when comparing IPv4 and IPv6, the most significant user change is
the sockaddr_in and sockaddr_in6 addresses. IMHO, since the GID format
is identical, the changes could be encoded in a gid_type argument. The
gid_type is an inherent part of the address, making identical gids with
different gid_types as two different addresses, as expected.
On 4/15/2015 7:21 PM, Suri Shelvapille wrote:
IMHO, it would be good to have a physical layer representation in the naming
convention.
-----Original Message-----
From: linux-rdma-ow...@vger.kernel.org
[mailto:linux-rdma-ow...@vger.kernel.org] On Behalf Of Hefty, Sean
Sent: Wednesday, April 15, 2015 12:08 PM
To: Somnath Kotur; Matan Barak; rol...@kernel.org
Cc: linux-rdma@vger.kernel.org
Subject: RE: [PATCH v3 for-next 01/33] IB/core: Add RoCE GID cache
It does not break every app, the choice of which GID type to use is
made by the RDMA-CM based on network topology hint obtained from the IP stack.
Please refer to patch 15/33: IB/Core: Changes to the IB Core
infrastructure for RoCEv2 support.
Of course, if the user does not want to go with this choice made by
the RDMA-CM, then there is the option of overriding it using the
configfs patch (PATCH 14/33) Hope that clarifies?
RoCE v2 is really Infiniband over UDP over IP. Why don't we just call it
IBoUDP like it is?
IBoUDP changes the Ethertype, replaces the network header, adds a new transport
protocol header, and layers IB over that. This change should be exposed
properly and not as just a new GID type.
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