net/sfc: fix getting accumulative SW xstat

Add missing initialisation of the accumulative SW xstat to
zero since it is sum of per-queue xstats.

Fixes: fdd7719eb3c1 ("net/sfc: add xstats for Rx/Tx doorbells")
Cc: stable@dpdk.org
Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>

diff --git a/drivers/net/sfc/sfc_sw_stats.c b/drivers/net/sfc/sfc_sw_stats.c
index 8489b60..2b28ba2 100644 (file)
--- a/drivers/net/sfc/sfc_sw_stats.c
+++ b/drivers/net/sfc/sfc_sw_stats.c
@@ -313,6 +313,7 @@ sfc_sw_xstat_get_values_by_id(struct sfc_adapter *sa,
        }
 
        if (count_accum_value) {
+               values[accum_value_idx] = 0;
                for (qid = 0; qid < nb_queues; ++qid) {
                        if (rte_bitmap_get(bmp, qid) != 0)
                                continue;