[dpdk-dev] [PATCH v1] net/ice: fix incorrect ptype parsing

[dpdk-dev] [PATCH v1] net/ice: fix incorrect ptype parsing

[Ting Xu]

The ptype mask for flexible descriptor in Rx function ice_recv_pkts_vec
has a reversed order, which leads to an incorrect value of the final
ptype. This patch fix the mask to parse the correct ptype of RX packets.

Fixes: c68a52b8b38c ("net/ice: support vector SSE in Rx")
Cc: stable@dpdk.org

Signed-off-by: Ting Xu <ting.xu@intel.com>
---
 drivers/net/ice/ice_rxtx_vec_sse.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ice/ice_rxtx_vec_sse.c b/drivers/net/ice/ice_rxtx_vec_sse.c
index 382ef31f3a..64df5a8bbd 100644
--- a/drivers/net/ice/ice_rxtx_vec_sse.c
+++ b/drivers/net/ice/ice_rxtx_vec_sse.c
@@ -188,10 +188,10 @@ static inline void
 ice_rx_desc_to_ptype_v(__m128i descs[4], struct rte_mbuf **rx_pkts,
 		       uint32_t *ptype_tbl)
 {
-	const __m128i ptype_mask = _mm_set_epi16(0, ICE_RX_FLEX_DESC_PTYPE_M,
-						 0, ICE_RX_FLEX_DESC_PTYPE_M,
-						 0, ICE_RX_FLEX_DESC_PTYPE_M,
-						 0, ICE_RX_FLEX_DESC_PTYPE_M);
+	const __m128i ptype_mask = _mm_set_epi16(ICE_RX_FLEX_DESC_PTYPE_M, 0,
+						 ICE_RX_FLEX_DESC_PTYPE_M, 0,
+						 ICE_RX_FLEX_DESC_PTYPE_M, 0,
+						 ICE_RX_FLEX_DESC_PTYPE_M, 0);
 	__m128i ptype_01 = _mm_unpacklo_epi32(descs[0], descs[1]);
 	__m128i ptype_23 = _mm_unpacklo_epi32(descs[2], descs[3]);
 	__m128i ptype_all = _mm_unpacklo_epi64(ptype_01, ptype_23);
-- 
2.17.1

Re: [dpdk-dev] [PATCH v1] net/ice: fix incorrect ptype parsing

[Zhang, Qi Z]

> -----Original Message-----
> From: Xu, Ting <ting.xu@intel.com>
> Sent: Wednesday, September 16, 2020 11:02 AM
> To: dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Yang, Qiming
> <qiming.yang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Xu, Ting
> <ting.xu@intel.com>; stable@dpdk.org
> Subject: [PATCH v1] net/ice: fix incorrect ptype parsing
> 
> The ptype mask for flexible descriptor in Rx function ice_recv_pkts_vec has a
> reversed order, which leads to an incorrect value of the final ptype. This patch
> fix the mask to parse the correct ptype of RX packets.
> 
> Fixes: c68a52b8b38c ("net/ice: support vector SSE in Rx")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ting Xu <ting.xu@intel.com>

Acked-by: Qi Zhang <qi.z.zhang@intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi