| What: /config/rdma_cm | |
| Date: November 29, 2015 | |
| KernelVersion: 4.4.0 | |
| Description: Interface is used to configure RDMA-cable HCAs in respect to | |
| RDMA-CM attributes. | |
| Attributes are visible only when configfs is mounted. To mount | |
| configfs in /config directory use: | |
| # mount -t configfs none /config/ | |
| In order to set parameters related to a specific HCA, a directory | |
| for this HCA has to be created: | |
| mkdir -p /config/rdma_cm/<hca> | |
| What: /config/rdma_cm/<hca>/ports/<port-num>/default_roce_mode | |
| Date: November 29, 2015 | |
| KernelVersion: 4.4.0 | |
| Description: RDMA-CM based connections from HCA <hca> at port <port-num> | |
| will be initiated with this RoCE type as default. | |
| The possible RoCE types are either "IB/RoCE v1" or "RoCE v2". | |
| This parameter has RW access. | |
| What: /config/rdma_cm/<hca>/ports/<port-num>/default_roce_tos | |
| Date: February 7, 2017 | |
| KernelVersion: 4.11.0 | |
| Description: RDMA-CM QPs from HCA <hca> at port <port-num> | |
| will be created with this TOS as default. | |
| This can be overridden by using the rdma_set_option API. | |
| The possible RoCE TOS values are 0-255. |