When the vector pmd was receiving a mix of packets of various sizes,
some of which were split across multiple mbufs, there was an issue
with reassembly of the jumbo frames. This was due to a skipped increment
when using "continue" in a while loop. Changing the loop to a "for"
loop fixes this problem, by ensuring the increment is always performed.
Reported-by: Prashant Upadhyaya <praupadhyaya at gmail.com>
Reported-by: Martin Weiser <martin.weiser at allegro-packets.com>
Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
Tested-by: Martin Weiser <martin.weiser at allegro-packets.com>
---
lib/librte_pmd_ixgbe/ixgbe_rxtx_vec.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx_vec.c
b/lib/librte_pmd_ixgbe/ixgbe_rxtx_vec.c
index b54cb19..dfaccee 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_rxtx_vec.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx_vec.c
@@ -402,10 +402,10 @@ reassemble_packets(struct igb_rx_queue *rxq, struct
rte_mbuf **rx_bufs,
struct rte_mbuf *pkts[RTE_IXGBE_VPMD_RX_BURST]; /*finished pkts*/
struct rte_mbuf *start = rxq->pkt_first_seg;
struct rte_mbuf *end = rxq->pkt_last_seg;
- unsigned pkt_idx = 0, buf_idx = 0;
+ unsigned pkt_idx, buf_idx;
- while (buf_idx < nb_bufs) {
+ for (buf_idx = 0, pkt_idx = 0; buf_idx < nb_bufs; buf_idx++) {
if (end != NULL) {
/* processing a split packet */
end->next = rx_bufs[buf_idx];
@@ -448,7 +448,6 @@ reassemble_packets(struct igb_rx_queue *rxq, struct
rte_mbuf **rx_bufs,
rx_bufs[buf_idx]->data_len += rxq->crc_len;
rx_bufs[buf_idx]->pkt_len += rxq->crc_len;
}
- buf_idx++;
}
/* save the partial packet for next time */
--
2.1.0
