From mboxrd@z Thu Jan 1 00:00:00 1970 From: Somnath Kotur Subject: [PATCH v3 for-next 25/33] IB/mlx4: Implement ib_device callback - get_netdev Date: Thu, 26 Mar 2015 02:50:14 +0530 Message-ID: <87913518-05db-4c2b-9cf9-587d5dae1517@CMEXHTCAS2.ad.emulex.com> References: <1427318422-12004-1-git-send-email-somnath.kotur@emulex.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1427318422-12004-1-git-send-email-somnath.kotur-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Moni Shoua , Somnath Kotur List-Id: linux-rdma@vger.kernel.org From: Moni Shoua This is a new callback that is required for RoCEv2 support. In port aggregation mode it is required to return the netdev of the active port so support in mlx4 core driver to figure out that port identity is required. Signed-off-by: Moni Shoua Signed-off-by: Somnath Kotur --- drivers/infiniband/hw/mlx4/main.c | 29 +++++++++++++++++++++++++++++ drivers/net/ethernet/mellanox/mlx4/main.c | 18 ++++++++++++++++++ include/linux/mlx4/driver.h | 1 + 3 files changed, 48 insertions(+) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index bf87a95..04e6603 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -47,6 +47,8 @@ #include #include +#include + #include #include #include @@ -1527,6 +1529,32 @@ unlock: mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]); } +static struct net_device *mlx4_ib_get_netdev(struct ib_device *device, u8 port_num) +{ + struct mlx4_ib_dev *ibdev = to_mdev(device); + + if (mlx4_is_bonded(ibdev->dev)) { + struct net_device *dev; + struct net_device *upper = NULL; + + rcu_read_lock(); + + dev = mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num); + if (dev) + upper = netdev_master_upper_dev_get_rcu(dev); + else + goto unlock; + if (upper) + dev = bond_option_active_slave_get_rcu(netdev_priv(upper)); +unlock: + rcu_read_unlock(); + + return dev; + } + + return mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num); +} + static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, struct net_device *dev, unsigned long event) @@ -1806,6 +1834,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; ibdev->ib_dev.process_mad = mlx4_ib_process_mad; + ibdev->ib_dev.get_netdev = mlx4_ib_get_netdev; if (!mlx4_is_slave(ibdev->dev)) { ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 29c60fd..3f469d3 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1241,6 +1241,24 @@ int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p) } EXPORT_SYMBOL_GPL(mlx4_port_map_set); +int mlx4_port_map_get(struct mlx4_dev *dev, u8 vport, u8 *pport) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + + if (!pport) + return -EINVAL; + *pport = 0; + + if (vport == 1) + *pport = priv->v2p.port1; + else if (vport == 2) + *pport = priv->v2p.port2; + if (!*pport) + return -EINVAL; + return 0; +} +EXPORT_SYMBOL_GPL(mlx4_port_map_get); + static int mlx4_load_fw(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h index 5a06d96..a992971 100644 --- a/include/linux/mlx4/driver.h +++ b/include/linux/mlx4/driver.h @@ -81,6 +81,7 @@ struct mlx4_port_map { }; int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p); +int mlx4_port_map_get(struct mlx4_dev *dev, u8 vport, u8 *pport); void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html