netdev - [PATCH net-next 0/3] Improve tracing at the driver/core boundary

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Date:	Fri, 10 Jan 2014 22:15:39 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	David Miller <davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>
Subject: [PATCH net-next 0/3] Improve tracing at the driver/core boundary

These patches add static tracpeoints at the driver/core boundary which
record various skb fields likely to be useful for datapath debugging.
On the TX side the boundary is where the core calls ndo_start_xmit, and
on the RX side it is where any of the various exported receive functions
is called.

The set of skb fields is mostly based on what I thought would be
interesting for sfc.

These patches are basically the same as what I sent as an RFC in
November, but rebased.  They now depend on 'net: core: explicitly select
a txq before doing l2 forwarding', so please merge net into net-next
before trying to apply them.  The first patch fixes a code formatting
error left behind after that fix.

Ben.

Ben Hutchings (3):
  net: Fix indentation in dev_hard_start_xmit()
  net: Add net_dev_start_xmit trace event, exposing more skb fields
  net: Add trace events for all receive entry points, exposing more skb
    fields

 include/trace/events/net.h | 158 +++++++++++++++++++++++++++++++++++++++++++++
 net/core/dev.c             | 105 ++++++++++++++++++------------
 2 files changed, 222 insertions(+), 41 deletions(-)

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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