linux/include/rdma, branch v4.5

IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers

2016-01-19T20:35:01Z

RoCEv2 packets are sent over IP/UDP protocols. The mlx4 driver uses a type of RAW QP to send packets for QP1 and therefore needs to build the network headers below BTH in software. This patch adds option to build QP1 packets with IP and UDP headers if RoCEv2 is requested. Signed-off-by: Moni Shoua Signed-off-by: Doug Ledford

IB/core: Add definition for the standard RoCE V2 UDP port

2016-01-19T20:35:01Z

This will be used in hardware device driver when building QP or AH contexts. Signed-off-by: Moni Shoua Signed-off-by: Matan Barak Signed-off-by: Doug Ledford

IB/core: Use hop-limit from IP stack for RoCE

2016-01-19T20:26:56Z

Previously, IPV6_DEFAULT_HOPLIMIT was used as the hop limit value for RoCE. Fixing that by taking ip4_dst_hoplimit and ip6_dst_hoplimit as hop limit values. Signed-off-by: Matan Barak Signed-off-by: Doug Ledford

IB/core: Rename rdma_addr_find_dmac_by_grh

2016-01-19T20:26:55Z

rdma_addr_find_dmac_by_grh resolves dmac, vlan_id and if_index and downsteram patch will also add hop_limit as an output parameter, thus we rename it to rdma_addr_find_l2_eth_by_grh. Signed-off-by: Matan Barak Signed-off-by: Doug Ledford

IB/mad: pass ib_mad_send_buf explicitly to the recv_handler

2016-01-19T20:25:36Z

Stop abusing wr_id and just pass the parameter explicitly. Signed-off-by: Christoph Hellwig Reviewed-by: Hal Rosenstock Reviewed-by: Ira Weiny Reviewed-by: Sagi Grimberg Signed-off-by: Doug Ledford

IB/core: Add cross-channel support

2015-12-24T04:33:14Z

The cross-channel feature allows to execute WQEs that involve synchronization of I/O operations’ on different QPs. This capability enables to program complex flows with a single function call, hereby significantly reducing overhead associated with I/O processing. Cross-channel operations support is indicated by HCA capability information. The queue pairs can be configured to work as a “sync master queue” or “sync slave queues”. The added flags are: 1. Device capability flag IB_DEVICE_CROSS_CHANNEL for the devices that can perform cross-channel operations. 2. CQ property flag IB_CQ_FLAGS_IGNORE_OVERRUN to disable CQ overrun check. This check is useless in cross-channel scenario. 3. QP property flags to indicate if queues are slave or master: * IB_QP_CREATE_MANAGED_SEND indicates that posted send work requests will not be executed immediately and requires enabling. * IB_QP_CREATE_MANAGED_RECV indicates that posted receive work requests will not be executed immediately and requires enabling. * IB_QP_CREATE_CROSS_CHANNEL declares the QP to work in cross-channel mode. If IB_QP_CREATE_MANAGED_SEND and IB_QP_CREATE_MANAGED_RECV are not provided, this QP will be sync master queue, else it will be sync slave. Reviewed-by: Sagi Grimberg Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford

IB/core: Align coding style of ib_device_cap_flags structure

2015-12-24T04:32:39Z

Modify enum ib_device_cap_flags such that other patches which add new enum values pass strict checkpatch.pl checks. Reviewed-by: Sagi Grimberg Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford

IB/core: Add ib_is_udata_cleared

2015-12-24T04:25:59Z

Extending core and vendor verb commands require us to check that the unknown part of the user's given command is all zeros. Adding ib_is_udata_cleared in order to do so. Signed-off-by: Matan Barak Reviewed-by: Haggai Eran Signed-off-by: Doug Ledford

IB/core: Display extended counter set if available

2015-12-23T20:58:30Z

Check if the extended counters are available and if so create the proper extended and additional counters. Signed-off-by: Christoph Lameter Reviewed-by: Ira Weiny Reviewed-by: Hal Rosenstock Signed-off-by: Doug Ledford

IB: remove the write-only usecnt field from struct ib_mr

2015-12-23T19:29:06Z

Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche Reviewed-by: Sagi Grimberg Signed-off-by: Doug Ledford