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remarkable-linux/drivers/infiniband/sw
Zhu Yanjun 394df59143 IB/rxe: Drop QP0 silently
[ Upstream commit 536ca245c5 ]

According to "Annex A16: RDMA over Converged Ethernet (RoCE)":

A16.4.3 MANAGEMENT INTERFACES

As defined in the base specification, a special Queue Pair, QP0 is defined
solely for communication between subnet manager(s) and subnet management
agents. Since such an IB-defined subnet management architecture is outside
the scope of this annex, it follows that there is also no requirement that
a port which conforms to this annex be associated with a QP0. Thus, for
end nodes designed to conform to this annex, the concept of QP0 is
undefined and unused for any port connected to an Ethernet network.

CA16-8: A packet arriving at a RoCE port containing a BTH with the
destination QP field set to QP0 shall be silently dropped.

Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Acked-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-26 08:38:00 +02:00
..
rdmavt IB/hfi1: Optimize kthread pointer locking when queuing CQ entries 2018-07-03 11:24:54 +02:00
rxe IB/rxe: Drop QP0 silently 2018-09-26 08:38:00 +02:00
Makefile Soft RoCE driver 2016-08-04 11:13:12 -04:00