igb: Add timeout for PTP Tx work item

Browse source

When transmitting a packet that must return a Tx timestamp, a work item
gets scheduled to poll for the Tx timestamp being completed in hardware.
Add a timeout on this work item of 15 seconds from when the driver gets the
skb, after which it will stop polling. Report via stats and system log if
this occurs.

Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Acked-by: Jacob Keller <Jacob.e.keller@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

This commit is contained in:

Matthew Vick 2012-12-13 07:20:34 +00:00 • committed by Jeff Kirsher

parent b66e2397cd

commit 428f1f7151

4 changed files with 14 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

2

drivers/net/ethernet/intel/igb/igb.h

View file

1

drivers/net/ethernet/intel/igb/igb_ethtool.c

View file

1

drivers/net/ethernet/intel/igb/igb_main.c

View file

10

drivers/net/ethernet/intel/igb/igb_ptp.c

View file