Hi
I configure QoS in user mode using librdmacm call:
rdma_set_option(cm_id, RDMA_OPTION_ID,RDMA_OPTION_ID_TOS, &tos, sizeof _tos)
After the connection is established, i query ibv_query_qp (and also
cm_id->route.path_rec->sl) to check SL, which is correct as per the qos
choice from qos_policy.config settings.
But the data transfer is not happening in correct VL as per SL=>VL.
For example if SL is 3 the data transfer VL should be 3 (based on
SL2VLmaptable).
Instead data is always transfered on VL:0, irrepective of SL value.
Interestingly, the same thing is working properly in kernel mode when i
set tos using the call:
rdma_set_service_type(cm_id, conn->c_tos);
If i use kernel mode rdma cm, SL=>VL is correct, data transfer post send
takes place on VL based on SL.
Do you have clue why the user mode libibverb is not tranfering on VL
based on SL.
Thanks,
Prasanna
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