The shift left operation "pkt->vlan_tci << 16" gets vlan_tci extended
to signed type and may cause invalid descriptor. Also the same issue for
the "data_len" field. This patch fixes it by casting them to uint64_t.
Fixes: 21f13c541eb0 ("fm10k: add vector Tx")
Cc: sta...@dpdk.org
Signed-off-by: Xiao Wang <xiao.w.w...@intel.com>
---
drivers/net/fm10k/fm10k_rxtx_vec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/fm10k/fm10k_rxtx_vec.c
b/drivers/net/fm10k/fm10k_rxtx_vec.c
index 96b46a2bd..788e2484a 100644
--- a/drivers/net/fm10k/fm10k_rxtx_vec.c
+++ b/drivers/net/fm10k/fm10k_rxtx_vec.c
@@ -711,7 +711,7 @@ vtx1(volatile struct fm10k_tx_desc *txdp,
struct rte_mbuf *pkt, uint64_t flags)
{
__m128i descriptor = _mm_set_epi64x(flags << 56 |
- pkt->vlan_tci << 16 | pkt->data_len,
+ (uint64_t)pkt->vlan_tci << 16 | (uint64_t)pkt->data_len,
MBUF_DMA_ADDR(pkt));
_mm_store_si128((__m128i *)txdp, descriptor);
}
--
2.15.1
