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

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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>
This commit is contained in:
Tariq Toukan 2018-05-22 17:06:38 +03:00 committed by Saeed Mahameed
parent d3398a4f18
commit 9a3956da1c
1 changed files with 4 additions and 6 deletions
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10
drivers/net/ethernet/mellanox/mlx5/core/en.h
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@ -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;