svn commit: r306238 - stable/11/sys/dev/mlx5/mlx5_en

[Hans Petter Selasky]

Author: hselasky
Date: Fri Sep 23 08:23:11 2016
New Revision: 306238
URL: https://svnweb.freebsd.org/changeset/base/306238

Log:
  MFC r305872:
  mlx5en: Properly declare doorbell lock for 32-bit CPUs.
  
  Sponsored by:	Mellanox Technologies

Modified:
  stable/11/sys/dev/mlx5/mlx5_en/en.h
  stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/dev/mlx5/mlx5_en/en.h
==============================================================================
--- stable/11/sys/dev/mlx5/mlx5_en/en.h	Fri Sep 23 08:22:30 2016	(r306237)
+++ stable/11/sys/dev/mlx5/mlx5_en/en.h	Fri Sep 23 08:23:11 2016	(r306238)
@@ -662,6 +662,7 @@ struct mlx5e_priv {
 	struct work_struct update_stats_work;
 	struct work_struct update_carrier_work;
 	struct work_struct set_rx_mode_work;
+	MLX5_DECLARE_DOORBELL_LOCK(doorbell_lock)
 
 	struct mlx5_core_dev *mdev;
 	struct ifnet *ifp;
@@ -784,7 +785,8 @@ mlx5e_tx_notify_hw(struct mlx5e_sq *sq, 
 		wmb();
 
 	} else {
-		mlx5_write64(wqe, sq->uar.map + ofst, NULL);
+		mlx5_write64(wqe, sq->uar.map + ofst,
+		    MLX5_GET_DOORBELL_LOCK(&sq->priv->doorbell_lock));
 	}
 
 	sq->bf_offset ^= sq->bf_buf_size;

Modified: stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
==============================================================================
--- stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_main.c	Fri Sep 23 08:22:30 2016	(r306237)
+++ stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_main.c	Fri Sep 23 08:23:11 2016	(r306238)
@@ -2753,6 +2753,7 @@ mlx5e_priv_mtx_init(struct mlx5e_priv *p
 	mtx_init(&priv->async_events_mtx, "mlx5async", MTX_NETWORK_LOCK, MTX_DEF);
 	sx_init(&priv->state_lock, "mlx5state");
 	callout_init_mtx(&priv->watchdog, &priv->async_events_mtx, 0);
+	MLX5_INIT_DOORBELL_LOCK(&priv->doorbell_lock);
 }
 
 static void