net/i40e: fix segment number in reassemble process

When freeing up last mbuf, start->nb_segs should be decremented
by one. See also ixgbe process.

Fixes: 0e0da28cd888 ("i40e: add vector scatter Rx")
Signed-off-by: Chenghu Yao <yao.chenghu@zte.com.cn>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/drivers/net/i40e/i40e_rxtx_vec_common.h b/drivers/net/i40e/i40e_rxtx_vec_common.h
index 6cb5dce9f5f07fec0902386fba98ee8cf07c46d3..990520f3c14e221ced057cfba64e833fc17f6ce1 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx_vec_common.h
+++ b/drivers/net/i40e/i40e_rxtx_vec_common.h
@@ -71,6 +71,7 @@ reassemble_packets(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_bufs,
                                        /* free up last mbuf */
                                        struct rte_mbuf *secondlast = start;
 
+                                       start->nb_segs--;
                                        while (secondlast->next != end)
                                                secondlast = secondlast->next;
                                        secondlast->data_len -= (rxq->crc_len -