tree 5f9ca421ac948de9a6119870d7e2f7a4867b1132
parent b66e2397cd277cf2bec2628b3ed35865df2609e5
author Matthew Vick <matthew.vick@intel.com> 1355383234 +0000
committer Jeff Kirsher <jeffrey.t.kirsher@intel.com> 1358513771 -0800

igb: Add timeout for PTP Tx work item

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>