user/sven/linux.git/include/uapi/rdma, branch v4.20.15

RDMA/vmw_pvrdma: Return the correct opcode when creating WR

2019-01-22T20:09:53Z

commit 6325e01b6cdf4636b721cf7259c1616e3cf28ce2 upstream. Since the IB_WR_REG_MR opcode value changed, let's set the PVRDMA device opcodes explicitly. Reported-by: Ruishuang Wang Fixes: 9a59739bd01f ("IB/rxe: Revise the ib_wr_opcode enum") Cc: stable@vger.kernel.org Reviewed-by: Bryan Tan Reviewed-by: Ruishuang Wang Reviewed-by: Vishnu Dasa Signed-off-by: Adit Ranadive Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman

IB/mlx5: Allow scatter to CQE without global signaled WRs

2018-10-17T15:25:41Z

Requester scatter to CQE is restricted to QPs configured to signal all WRs. This patch adds ability to enable scatter to cqe (force enable) in the requester without sig_all, for users who do not want all WRs signaled but rather just the ones whose data found in the CQE. Signed-off-by: Yonatan Cohen Reviewed-by: Guy Levi Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford

RDMA/nldev: Allow IB device rename through RDMA netlink

2018-10-16T17:37:16Z

Provide an option to rename IB device name through RDMA netlink and limit it to users with ADMIN capability only. Signed-off-by: Leon Romanovsky Reviewed-by: Parav Pandit Signed-off-by: Doug Ledford

RDMA/mlx5: Add support for flow tag to raw create flow

2018-10-16T06:24:45Z

A user can provide a hint which will be attached to the packet and written to the CQE on receive. This can be used as a way to offload operations into the HW, for example parsing a packet which is a tunneled packet, and if so, pass 0x1 as the hint. The software can use that hint to decapsulate the packet and parse only the inner headers thus saving CPU cycles. Signed-off-by: Mark Bloch Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

IB/mlx5: Expose RAW QP device handles to user space

2018-09-27T19:01:33Z

Expose RAW QP device handles to user space by extending the UHW part of mlx5_ib_create_qp_resp. This data is returned only when DEVX context is used where it may be applicable. Signed-off-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

Merge branch 'mlx5-vport-loopback' into rdma.get

2018-09-22T00:41:58Z

For dependencies, branch based on 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git mlx5 mcast/ucast loopback control enhancements from Leon Romanovsky: ==================== This is short series from Mark which extends handling of loopback traffic. Originally mlx5 IB dynamically enabled/disabled both unicast and multicast based on number of users. However RAW ethernet QPs need more granular access. ==================== Fixed failed automerge in mlx5_ib.h (minor context conflict issue) mlx5-vport-loopback branch: RDMA/mlx5: Enable vport loopback when user context or QP mandate RDMA/mlx5: Allow creating RAW ethernet QP with loopback support RDMA/mlx5: Refactor transport domain bookkeeping logic net/mlx5: Rename incorrect naming in IFC file Signed-off-by: Doug Ledford

RDMA/mlx5: Allow creating RAW ethernet QP with loopback support

2018-09-22T00:20:59Z

Expose two new flags: MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_UC MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_MC Those flags can be used at creation time in order to allow a QP to be able to receive loopback traffic (unicast and multicast). We store the state in the QP to be used on the destroy path to indicate with which flags the QP was created with. Signed-off-by: Mark Bloch Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford

IB/rxe: Revise the ib_wr_opcode enum

2018-09-17T23:06:02Z

This enum has become part of the uABI, as both RXE and the ib_uverbs_post_send() command expect userspace to supply values from this enum. So it should be properly placed in include/uapi/rdma. In userspace this enum is called 'enum ibv_wr_opcode' as part of libibverbs.h. That enum defines different values for IB_WR_LOCAL_INV, IB_WR_SEND_WITH_INV, and IB_WR_LSO. These were introduced (incorrectly, it turns out) into libiberbs in 2015. The kernel has changed its mind on the numbering for several of the IB_WC values over the years, but has remained stable on IB_WR_LOCAL_INV and below. Based on this we can conclude that there is no real user space user of the values beyond IB_WR_ATOMIC_FETCH_AND_ADD, as they have never worked via rdma-core. This is confirmed by inspection, only rxe uses the kernel enum and implements the latter operations. rxe has clearly never worked with these attributes from userspace. Other drivers that support these opcodes implement the functionality without calling out to the kernel. To make IB_WR_SEND_WITH_INV and related work for RXE in userspace we choose to renumber the IB_WR enum in the kernel to match the uABI that userspace has bee using since before Soft RoCE was merged. This is an overall simpler configuration for the whole software stack, and obviously can't break anything existing. Reported-by: Seth Howell Tested-by: Seth Howell Fixes: 8700e3e7c485 ("Soft RoCE driver") Cc: Signed-off-by: Jason Gunthorpe

RDMA/mlx5: Allow creating a matcher for a NIC TX flow table

2018-09-11T15:28:07Z

Currently a matcher can only be created and attached to a NIC RX flow table. Extend it to allow it on NIC TX flow tables as well. In order to achieve that, we: 1) Expose a new attribute: MLX5_IB_ATTR_FLOW_MATCHER_FLOW_FLAGS. enum ib_flow_flags is used as valid flags. Only IB_FLOW_ATTR_FLAGS_EGRESS is supported. 2) Remove the requirement to have a DEVX or QP destination when creating a flow. A flow added to NIC TX flow table will forward the packet outside of the vport (Wire or E-Switch in the SR-iOV case). Signed-off-by: Mark Bloch Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/mlx5: Add flow actions support to raw create flow

2018-09-11T15:28:07Z

Support attaching flow actions to a flow rule via raw create flow. For now only NIC RX path is supported. This change requires to export flow resources management functions so we can maintain proper bookkeeping of flow actions. Signed-off-by: Mark Bloch Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe