netdev - Why does e1000 (in net-2.6) have extra pseudo-netdevices

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Message-ID: <20080725120415.396e479a@extreme>
Date:	Fri, 25 Jul 2008 12:04:15 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	jeffery.t.kirsher@...el.com, jesse.brandeburg@...el.com,
	bruce.w.allan@...el.com, peterj.p.waskiewicz.jr@...el.com
Cc:	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net
Subject: Why does e1000 (in net-2.6) have extra pseudo-netdevices

Since we have multi-queue tx, and multi-napi, why does E1000 still
have extra fake network devices?


 static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
{
...
       adapter->polling_netdev = kcalloc(adapter->num_rx_queues,
                                          sizeof(struct net_device),
                                          GFP_KERNEL);
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