rvt_get_swqe_pkey_index
wc.pkey_index = rvt_get_swqe_pkey_index(swqe);
*pkey = hfi1_get_pkey(ibp, rvt_get_swqe_pkey_index(wqe));
pkey = hfi1_get_pkey(ibp, rvt_get_swqe_pkey_index(wqe));