Re: [PATCH] net/core: Save the port number a netdevice uses

On Wed, May 26, 2010 at 01:39:26AM -0700, David Miller wrote:

From: Eli Cohen <eli-VPRAkNaXOzVS1MOuV/RT9w@public.gmane.org>
Date: Wed, 26 May 2010 11:17:02 +0300

quoted

Today, there are no means to know which port of a hardware device a netdev
interface uses. This patch adds a new field to struct net_device that is used
to store this value. The network driver should use the SET_NETDEV_PORT_NUM()
macro to set the port number for the device it manages. For drivers that do not
set a value, a default value of 1 is set at alloc_netdev_mq().
This patch also makes use of this feature in the mlx4_en driver.

Signed-off-by: Eli Cohen <eli-VPRAkNaXOzVS1MOuV/RT9w@public.gmane.org>

We have an existing dev_id, use it.

Do you think we should use dev_id also for the sysfs file name so
every driver can choose to interpret this field as it chooses to, or
should I keep the sysfs file name as "port_number"?
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