sli4_req_common_set_features_t
sli4_req_common_set_features_t *cmd = NULL;
sizeof (sli4_req_common_set_features_t),
cmd = (sli4_req_common_set_features_t *)((uint8_t *)buf + sli_config_off);
cmd->hdr.request_length = sizeof(sli4_req_common_set_features_t) - sizeof(sli4_req_hdr_t);
return(sli_config_off + sizeof(sli4_req_common_set_features_t));