1*4882a593SmuzhiyunWhat: /config/rdma_cm 2*4882a593SmuzhiyunDate: November 29, 2015 3*4882a593SmuzhiyunKernelVersion: 4.4.0 4*4882a593SmuzhiyunDescription: Interface is used to configure RDMA-cable HCAs in respect to 5*4882a593Smuzhiyun RDMA-CM attributes. 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun Attributes are visible only when configfs is mounted. To mount 8*4882a593Smuzhiyun configfs in /config directory use: 9*4882a593Smuzhiyun # mount -t configfs none /config/ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun In order to set parameters related to a specific HCA, a directory 12*4882a593Smuzhiyun for this HCA has to be created: 13*4882a593Smuzhiyun mkdir -p /config/rdma_cm/<hca> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun 16*4882a593SmuzhiyunWhat: /config/rdma_cm/<hca>/ports/<port-num>/default_roce_mode 17*4882a593SmuzhiyunDate: November 29, 2015 18*4882a593SmuzhiyunKernelVersion: 4.4.0 19*4882a593SmuzhiyunDescription: RDMA-CM based connections from HCA <hca> at port <port-num> 20*4882a593Smuzhiyun will be initiated with this RoCE type as default. 21*4882a593Smuzhiyun The possible RoCE types are either "IB/RoCE v1" or "RoCE v2". 22*4882a593Smuzhiyun This parameter has RW access. 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunWhat: /config/rdma_cm/<hca>/ports/<port-num>/default_roce_tos 25*4882a593SmuzhiyunDate: February 7, 2017 26*4882a593SmuzhiyunKernelVersion: 4.11.0 27*4882a593SmuzhiyunDescription: RDMA-CM QPs from HCA <hca> at port <port-num> 28*4882a593Smuzhiyun will be created with this TOS as default. 29*4882a593Smuzhiyun This can be overridden by using the rdma_set_option API. 30*4882a593Smuzhiyun The possible RoCE TOS values are 0-255. 31