1What: 		/config/rdma_cm
2Date: 		November 29, 2015
3KernelVersion:  4.4.0
4Description: 	Interface is used to configure RDMA-cable HCAs in respect to
5		RDMA-CM attributes.
6
7		Attributes are visible only when configfs is mounted. To mount
8		configfs in /config directory use:
9		# mount -t configfs none /config/
10
11		In order to set parameters related to a specific HCA, a directory
12		for this HCA has to be created:
13		mkdir -p /config/rdma_cm/<hca>
14
15
16What: 		/config/rdma_cm/<hca>/ports/<port-num>/default_roce_mode
17Date: 		November 29, 2015
18KernelVersion:  4.4.0
19Description: 	RDMA-CM based connections from HCA <hca> at port <port-num>
20		will be initiated with this RoCE type as default.
21		The possible RoCE types are either "IB/RoCE v1" or "RoCE v2".
22		This parameter has RW access.
23
24What: 		/config/rdma_cm/<hca>/ports/<port-num>/default_roce_tos
25Date: 		February 7, 2017
26KernelVersion:  4.11.0
27Description: 	RDMA-CM QPs from HCA <hca> at port <port-num>
28		will be created with this TOS as default.
29		This can be overridden by using the rdma_set_option API.
30		The possible RoCE TOS values are 0-255.
31