Martin Wilck f1b0a8ea9f Revert "RDMA/rxe: Remove VLAN code leftovers from RXE" ... This reverts commit b2d2440430. It's true that creating rxe on top of 802.1q interfaces doesn't work. Thus, commit fd49ddaf7e ("RDMA/rxe: prevent rxe creation on top of vlan interface") was absolutely correct. But b2d2440430 was incorrect assuming that with this change, RDMA and VLAN don't work togehter at all. It just has to be set up differently. Rather than creating rxe on top of the VLAN interface, rxe must be created on top of the physical interface. RDMA then works just fine through VLAN interfaces on top of that physical interface, via the "upper device" logic. This is hard to see in the rxe logic because it never talks about vlan, but instead rxe carefully selects upper vlan netdevices when working with packets which in turn imply certain vlan tagging. This is all done correctly and interacts with the gid table with VLAN support the same as real HW does. b2d2440430 broke this setup deliberately and should thus be reverted. Also, b2d2440430 removed rxe_dma_device(), so adapt the revert to discard that hunk. Fixes: b2d2440430 ("RDMA/rxe: Remove VLAN code leftovers from RXE") Link: https://lore.kernel.org/r/20210120161913.7347-1-mwilck@suse.com Signed-off-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>		2021-01-20 13:29:28 -04:00
..
rdmavt	IB: Fix kernel-doc markups	2020-12-07 15:45:00 -04:00
rxe	Revert "RDMA/rxe: Remove VLAN code leftovers from RXE"	2021-01-20 13:29:28 -04:00
siw	RDMA/siw,rxe: Make emulated devices virtual in the device tree	2020-11-23 16:14:31 -04:00
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