net/mlx5e: TX, Move DB fields in TXQ-SQ struct

Pointers in DB are static, move them to read-only area so they
do not share a cacheline with fields modified in datapath.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 3f21cafe6be35e862ab44df3c253774593cacb1e..c41cfc2a4b701264187d14acf3c54c63245d52fe 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -365,16 +365,14 @@ struct mlx5e_txqsq {
 
        struct mlx5e_cq            cq;
 
-       /* write@xmit, read@completion */
-       struct {
-               struct mlx5e_sq_dma       *dma_fifo;
-               struct mlx5e_tx_wqe_info  *wqe_info;
-       } db;
-
        /* read only */
        struct mlx5_wq_cyc         wq;
        u32                        dma_fifo_mask;
        struct mlx5e_sq_stats     *stats;
+       struct {
+               struct mlx5e_sq_dma       *dma_fifo;
+               struct mlx5e_tx_wqe_info  *wqe_info;
+       } db;
        void __iomem              *uar_map;
        struct netdev_queue       *txq;
        u32                        sqn;