[PATCH] net/core: use net_device dev_id to indicate port number
From: Eli Cohen <hidden>
Date: 2010-05-26 09:51:54
Also in:
linux-rdma
Subsystem:
networking drivers, networking [general], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Today, there are no means to know which port of a hardware device a netdev interface uses. struct net_device conatins a field, dev_id, that can be used for that. This patch adds a new macro, SET_NETDEV_DEV_ID(), to provide a standard way to set the value of this field. Also also make use of this feature in the mlx4_en driver to set the port number; port numbers are zero based. Signed-off-by: Eli Cohen <redacted> --- drivers/net/mlx4/en_netdev.c | 1 + include/linux/netdevice.h | 5 +++++ 2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c
index 6c2b15b..612df1e 100644
--- a/drivers/net/mlx4/en_netdev.c
+++ b/drivers/net/mlx4/en_netdev.c@@ -978,6 +978,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, } SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); + SET_NETDEV_DEV_ID(dev, port - 1); /* * Initialize driver private data
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3857517..8d5f2c7 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h@@ -1080,6 +1080,11 @@ static inline void *netdev_priv(const struct net_device *dev) */ #define SET_NETDEV_DEVTYPE(net, devtype) ((net)->dev.type = (devtype)) +/* + * Set the port number of the physical device that this port net device uses + */ +#define SET_NETDEV_DEV_ID(net, devid) ((net)->dev_id = (devid)) + /** * netif_napi_add - initialize a napi context * @dev: network device
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1.7.1