From: Stephen Hemminger <shemm...@brocade.com> Want to be able to build with RTE_SCHED_RED enabled but allow disabling RED on a per-queue basis at runtime.
RED is disabled unless min/max thresholds set. Signed-off-by: Stephen Hemmminger <stephen at networkplumber.org> --- lib/librte_sched/rte_sched.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/lib/librte_sched/rte_sched.c b/lib/librte_sched/rte_sched.c index 95dee27..3b5acd1 100644 --- a/lib/librte_sched/rte_sched.c +++ b/lib/librte_sched/rte_sched.c @@ -636,6 +636,12 @@ rte_sched_port_config(struct rte_sched_port_params *params) uint32_t j; for (j = 0; j < e_RTE_METER_COLORS; j++) { + /* if min/max are both zero, then RED is disabled */ + if ((params->red_params[i][j].min_th | + params->red_params[i][j].max_th) == 0) { + continue; + } + if (rte_red_config_init(&port->red_config[i][j], params->red_params[i][j].wq_log2, params->red_params[i][j].min_th, @@ -1069,6 +1075,9 @@ rte_sched_port_red_drop(struct rte_sched_port *port, struct rte_mbuf *pkt, uint3 color = rte_sched_port_pkt_read_color(pkt); red_cfg = &port->red_config[tc_index][color]; + if ((red_cfg->min_th | red_cfg->max_th) == 0) + return 0; + qe = port->queue_extra + qindex; red = &qe->red; -- 2.1.4