net/mlx5: fix CQE decompression for Arm and PowerPC

The recent Rx code refactoring moved the incrementing
of the CQ completion index out of the rxq_cq_decompress_v()
function to the rxq_burst_v() function.

The advancing of CQ completion index was removed in SSE
version only causing Neon and Altivec Rx bursts to stall.

Remove the incrementation of CQ completion index for all
the architectures in order to fix the stall.

Fixes: 1ded26239aa0 ("net/mlx5: refactor vectorized Rx")

Signed-off-by: Alexander Kozyrev <akozyrev@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_altivec.h b/drivers/net/mlx5/mlx5_rxtx_vec_altivec.h
index f15c4af..48b677e 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxtx_vec_altivec.h
+++ b/drivers/net/mlx5/mlx5_rxtx_vec_altivec.h
@@ -506,7 +506,6 @@ rxq_cq_decompress_v(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cq,
        rxq->stats.ibytes += rcvd_byte;
 #endif
 
-       rxq->cq_ci += mcqe_n;
        return mcqe_n;
 }
 

diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_neon.h b/drivers/net/mlx5/mlx5_rxtx_vec_neon.h
index 807e528..4c067d8 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxtx_vec_neon.h
+++ b/drivers/net/mlx5/mlx5_rxtx_vec_neon.h
@@ -369,7 +369,6 @@ rxq_cq_decompress_v(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cq,
        rxq->stats.ipackets += mcqe_n;
        rxq->stats.ibytes += rcvd_byte;
 #endif
-       rxq->cq_ci += mcqe_n;
        return mcqe_n;
 }