On Thu, Nov 02, 2017 at 02:01:58PM -0600, Jason Gunthorpe wrote: > On Mon, Oct 30, 2017 at 03:23:24PM +0000, Alex Margolin wrote: > > > We propose using the "reserved" range of QP types to serve the > > vendor-specific implementation, both within the Verbs API (API patch > > below) and the IB subsystem (ib_core). The solution requires minor > > changes to IB core, namely removing some restrictions that apply to > > standard QPs at creation, but most of the flow (and the one for > > modify and destroy) remains identical. > > > The changes to support such QPs will remain in the vendor-specific > > area of the API, i.e. Mellanox "Direct Verbs" portion, and the > > change in ib_core is to use specific IB_QPT_RESERVED* definitions to > > cut through some of the required checks (but still using most of the > > logic, where applicable). No change to libibverbs is required. > > Don't like the idea of a generic RESERVED. > > Add a type called IB_QPT_DIRECT_VERBS and put any other information +1 If we go in this route, it will be much easier for me to present QP types. root@mtr-leonro:~# /mnt/iproute2/rdma/rdma res show qp dev mlx5_1 QPN DEV USER/KERNEL TYPE STATE PID COMM 8 mlx5_1 USER UD RESET 1 rdma 7 mlx5_1 USER UD RTS 1 rdma 1 mlx5_1 USER GSI RTS 1 rdma 1 mlx5_1 USER GSI RTS 1 rdma 0 mlx5_1 USER SMI RTS 1 rdma Thanks
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