[PATCH v2 3/4] net/ark: improve ring handling for segmented packets

[Ed Czeck]

handle case where complete packet is not yet available

Signed-off-by: Ed Czeck <ed.cz...@atomicrules.com>
---
 drivers/net/ark/ark_ethdev_rx.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ark/ark_ethdev_rx.c b/drivers/net/ark/ark_ethdev_rx.c
index 6077d98ae0..1b5c4b64a4 100644
--- a/drivers/net/ark/ark_ethdev_rx.c
+++ b/drivers/net/ark/ark_ethdev_rx.c
@@ -313,11 +313,15 @@ eth_ark_recv_pkts(void *rx_queue,
                        }
                }
 
-               if (unlikely(meta->pkt_len > queue->dataroom))
-                       cons_index = eth_ark_rx_jumbo
-                               (queue, meta, mbuf, cons_index + 1);
-               else
+               if (unlikely(meta->pkt_len > queue->dataroom)) {
+                       uint32_t tcons = eth_ark_rx_jumbo(queue, meta, mbuf, 
cons_index + 1);
+                       if ((int32_t)(prod_index - tcons) >= 0)
+                               cons_index = tcons; /* nominal condition */
+                       else
+                               break;
+               } else {
                        cons_index += 1;
+               }
 
                rx_pkts[nb] = mbuf;
                nb++;
-- 
2.34.1