From: Eric Dumazet <edumazet@google.com>
Date: Thu, 27 Mar 2014 15:45:56 +0000 (-0700)
Subject: net: net: add a core netdev->tx_dropped counter
X-Git-Tag: v3.15-rc1~113^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=015f0688f57ca4d499047d335b8052a733e17a4d;p=pandora-kernel.git

net: net: add a core netdev->tx_dropped counter

Dropping packets in __dev_queue_xmit() when transmit queue
is stopped (NIC TX ring buffer full or BQL limit reached) currently
outputs a syslog message.

It would be better to get a precise count of such events available in
netdevice stats so that monitoring tools can have a clue.

This extends the work done in caf586e5f23ce
("net: add a core netdev->rx_dropped counter")

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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