net/mlx5e: Remove mlx5e_cq.sqrq back-pointer

Use container_of() instead.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx5/core/en.h

@@ -208,7 +208,6 @@ enum cq_flags {
 struct mlx5e_cq {
 	/* data path - accessed per cqe */
 	struct mlx5_cqwq           wq;
-	void                      *sqrq;
 	unsigned long              flags;
 
 	/* data path - accessed per napi poll */

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -853,8 +853,6 @@ static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
 				    priv->params.tx_cq_moderation_pkts);
 		if (err)
 			goto err_close_tx_cqs;
-
-		c->sq[tc].cq.sqrq = &c->sq[tc];
 	}
 
 	return 0;
@@ -946,7 +944,6 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
 			    priv->params.rx_cq_moderation_pkts);
 	if (err)
 		goto err_close_tx_cqs;
-	c->rq.cq.sqrq = &c->rq;
 
 	napi_enable(&c->napi);
 

drivers/net/ethernet/mellanox/mlx5/core/en_rx.c

@@ -191,7 +191,7 @@ static inline void mlx5e_build_rx_skb(struct mlx5_cqe64 *cqe,
 
 bool mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget)
 {
-	struct mlx5e_rq *rq = cq->sqrq;
+	struct mlx5e_rq *rq = container_of(cq, struct mlx5e_rq, cq);
 	int i;
 
 	/* avoid accessing cq (dma coherent memory) if not needed */

drivers/net/ethernet/mellanox/mlx5/core/en_tx.c

@@ -266,7 +266,7 @@ bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq)
 	if (!test_and_clear_bit(MLX5E_CQ_HAS_CQES, &cq->flags))
 		return false;
 
-	sq = cq->sqrq;
+	sq = container_of(cq, struct mlx5e_sq, cq);
 
 	npkts = 0;
 	nbytes = 0;

drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c

@@ -65,7 +65,7 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget)
 
 	busy |= mlx5e_poll_rx_cq(&c->rq.cq, budget);
 
-	busy |= mlx5e_post_rx_wqes(c->rq.cq.sqrq);
+	busy |= mlx5e_post_rx_wqes(&c->rq);
 
 	if (busy)
 		return budget;