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Date:   Mon,  1 Apr 2019 16:42:15 +0200
From:   Florian Westphal <fw@...len.de>
To:     <netdev@...r.kernel.org>
Cc:     brouer@...hat.com, eric.dumazet@...il.com,
        Florian Westphal <fw@...len.de>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>,
        Boris Pismenny <borisp@...lanox.com>,
        Ilya Lesokhin <ilyal@...lanox.com>,
        Eran Ben Elisha <eranbe@...lanox.com>
Subject: [PATCH net-next 3/5] drivers: mellanox: use netdev_xmit_more() helper

skb->xmit_more hint is now always 0. This switches the mellanox drivers
to the netdev_xmit_more() helper.

Cc: Saeed Mahameed <saeedm@...lanox.com>
Cc: Leon Romanovsky <leon@...nel.org>
Cc: Boris Pismenny <borisp@...lanox.com>
Cc: Ilya Lesokhin <ilyal@...lanox.com>
Cc: Eran Ben Elisha <eranbe@...lanox.com>
Signed-off-by: Florian Westphal <fw@...len.de>
---
 drivers/net/ethernet/mellanox/mlx4/en_tx.c      |  2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en.h    |  2 +-
 .../mellanox/mlx5/core/en_accel/tls_rxtx.c      |  3 +--
 drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 17 +++++++++--------
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index fba54fb06e18..36a92b19e613 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -1042,7 +1042,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	send_doorbell = __netdev_tx_sent_queue(ring->tx_queue,
 					       tx_info->nr_bytes,
-					       skb->xmit_more);
+					       netdev_xmit_more());
 
 	real_size = (real_size / 16) & 0x3f;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 9e71cf03369c..3e1ea8b42c77 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -772,7 +772,7 @@ u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
 		       struct net_device *sb_dev);
 netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
 netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
-			  struct mlx5e_tx_wqe *wqe, u16 pi);
+			  struct mlx5e_tx_wqe *wqe, u16 pi, bool xmit_more);
 
 void mlx5e_completion_event(struct mlx5_core_cq *mcq);
 void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.c
index be137d4a9169..439bf5953885 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.c
@@ -181,7 +181,6 @@ static void mlx5e_tls_complete_sync_skb(struct sk_buff *skb,
 	 */
 	nskb->ip_summed = CHECKSUM_PARTIAL;
 
-	nskb->xmit_more = 1;
 	nskb->queue_mapping = skb->queue_mapping;
 }
 
@@ -248,7 +247,7 @@ mlx5e_tls_handle_ooo(struct mlx5e_tls_offload_context_tx *context,
 	sq->stats->tls_resync_bytes += nskb->len;
 	mlx5e_tls_complete_sync_skb(skb, nskb, tcp_seq, headln,
 				    cpu_to_be64(info.rcd_sn));
-	mlx5e_sq_xmit(sq, nskb, *wqe, *pi);
+	mlx5e_sq_xmit(sq, nskb, *wqe, *pi, true);
 	mlx5e_sq_fetch_wqe(sq, wqe, pi);
 	return skb;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index 41e2a01d3713..40f3f98aa279 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -297,7 +297,8 @@ static inline void mlx5e_fill_sq_frag_edge(struct mlx5e_txqsq *sq,
 static inline void
 mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 		     u8 opcode, u16 ds_cnt, u8 num_wqebbs, u32 num_bytes, u8 num_dma,
-		     struct mlx5e_tx_wqe_info *wi, struct mlx5_wqe_ctrl_seg *cseg)
+		     struct mlx5e_tx_wqe_info *wi, struct mlx5_wqe_ctrl_seg *cseg,
+		     bool xmit_more)
 {
 	struct mlx5_wq_cyc *wq = &sq->wq;
 
@@ -320,14 +321,14 @@ mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 		sq->stats->stopped++;
 	}
 
-	if (!skb->xmit_more || netif_xmit_stopped(sq->txq))
+	if (!xmit_more || netif_xmit_stopped(sq->txq))
 		mlx5e_notify_hw(wq, sq->pc, sq->uar_map, cseg);
 }
 
 #define INL_HDR_START_SZ (sizeof(((struct mlx5_wqe_eth_seg *)NULL)->inline_hdr.start))
 
 netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
-			  struct mlx5e_tx_wqe *wqe, u16 pi)
+			  struct mlx5e_tx_wqe *wqe, u16 pi, bool xmit_more)
 {
 	struct mlx5_wq_cyc *wq = &sq->wq;
 	struct mlx5_wqe_ctrl_seg *cseg;
@@ -360,7 +361,7 @@ netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 	}
 
 	stats->bytes     += num_bytes;
-	stats->xmit_more += skb->xmit_more;
+	stats->xmit_more += netdev_xmit_more();
 
 	headlen = skb->len - ihs - skb->data_len;
 	ds_cnt += !!headlen;
@@ -423,7 +424,7 @@ netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 		goto err_drop;
 
 	mlx5e_txwqe_complete(sq, skb, opcode, ds_cnt, num_wqebbs, num_bytes,
-			     num_dma, wi, cseg);
+			     num_dma, wi, cseg, xmit_more);
 
 	return NETDEV_TX_OK;
 
@@ -449,7 +450,7 @@ netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (unlikely(!skb))
 		return NETDEV_TX_OK;
 
-	return mlx5e_sq_xmit(sq, skb, wqe, pi);
+	return mlx5e_sq_xmit(sq, skb, wqe, pi, netdev_xmit_more());
 }
 
 static void mlx5e_dump_error_cqe(struct mlx5e_txqsq *sq,
@@ -659,7 +660,7 @@ netdev_tx_t mlx5i_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 	}
 
 	stats->bytes     += num_bytes;
-	stats->xmit_more += skb->xmit_more;
+	stats->xmit_more += netdev_xmit_more();
 
 	headlen = skb->len - ihs - skb->data_len;
 	ds_cnt += !!headlen;
@@ -704,7 +705,7 @@ netdev_tx_t mlx5i_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 		goto err_drop;
 
 	mlx5e_txwqe_complete(sq, skb, opcode, ds_cnt, num_wqebbs, num_bytes,
-			     num_dma, wi, cseg);
+			     num_dma, wi, cseg, false);
 
 	return NETDEV_TX_OK;
 
-- 
2.21.0

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