i40e: add counter for arq overflows

Browse source

Sometimes, ARQ overflows are a big deal and tell us that the
firmware/hardware/driver/something is having problems. But normally
they're no big deal. To assist in assessing this, add a counter to
our Ethtool stats. A handful of ARQ overflows during VF init is no
problem. A large, ever-growing number indicates that Something Bad is
happening.

Change-ID: Ie5348bfbc8a54a890559cb00279c28d976a55096
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

This commit is contained in:

Mitch Williams 2015-12-23 12:05:48 -08:00 • committed by Jeff Kirsher

parent a3d772a392

commit 1d0a4ada84

3 changed files with 3 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/net/ethernet/intel/i40e/i40e.h

View file

1

drivers/net/ethernet/intel/i40e/i40e_ethtool.c

View file

1

drivers/net/ethernet/intel/i40e/i40e_main.c

View file