ixgbe: fix check for split packets

The check for split packets to be reassembled in the vector ixgbe PMD
was incorrectly only checking the first 16 elements of the array instead
of all 32. This is fixed by changing the uint32_t values to be uint64_t
instead.

Fixes: cf4b4708a88a ("ixgbe: improve slow-path perf with vector scattered Rx")

Reported-by: Zoltan Kiss <zoltan.kiss@linaro.org>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>

diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec.c b/drivers/net/ixgbe/ixgbe_rxtx_vec.c
index 9c5390e..6c1647e 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec.c
@@ -549,10 +549,10 @@ ixgbe_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
                return 0;
 
        /* happy day case, full burst + no packets to be joined */
-       const uint32_t *split_fl32 = (uint32_t *)split_flags;
+       const uint64_t *split_fl64 = (uint64_t *)split_flags;
        if (rxq->pkt_first_seg == NULL &&
-                       split_fl32[0] == 0 && split_fl32[1] == 0 &&
-                       split_fl32[2] == 0 && split_fl32[3] == 0)
+                       split_fl64[0] == 0 && split_fl64[1] == 0 &&
+                       split_fl64[2] == 0 && split_fl64[3] == 0)
                return nb_bufs;
 
        /* reassemble any packets that need reassembly*/