From: Chengwen Feng fengchengwen@huawei.com
Currently, the number of Tx send bytes is obtained by accumulating the length of the batch 'mbuf' packets of the current loop cycle. Unfortunately, it uses svcntd (which means all lane, regardless of whether the corresponding lane is valid) which may lead to overflow, and thus refers to an invalid mbuf.
Because the SVE xmit algorithm applies only to a single mbuf, the mbuf's data_len is equal pkt_len, so this patch fixes it by using svaddv_u64(svbool_t pg, svuint64_t data_len) which only adds valid lanes.
Fixes: fdcd6a3e0246 ("net/hns3: add bytes stats") Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng fengchengwen@huawei.com Signed-off-by: Dongdong Liu liudongdong3@huawei.com --- drivers/net/hns3/hns3_rxtx_vec_sve.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/net/hns3/hns3_rxtx_vec_sve.c b/drivers/net/hns3/hns3_rxtx_vec_sve.c index be1fdbcdf0..b0dfb052bb 100644 --- a/drivers/net/hns3/hns3_rxtx_vec_sve.c +++ b/drivers/net/hns3/hns3_rxtx_vec_sve.c @@ -435,9 +435,8 @@ hns3_tx_fill_hw_ring_sve(struct hns3_tx_queue *txq, offsets, svdup_n_u64(valid_bit));
/* Increment bytes counter */ - uint32_t idx; - for (idx = 0; idx < svcntd(); idx++) - txq->basic_stats.bytes += pkts[idx]->pkt_len; + txq->basic_stats.bytes += + (svaddv_u64(pg, data_len) >> HNS3_UINT16_BIT);
/* update index for next loop */ i += svcntd();