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authorJacob Keller <jacob.e.keller@intel.com>2017-05-03 20:28:59 +0300
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2017-06-06 11:02:05 +0300
commitc3b8f85ec24674896aac9a6e41235b8d38db3dde (patch)
tree65c17115c071d47dbb24da6f5cba7c99f50d10cc /drivers/net/ethernet/intel/igb/igb.h
parentcff57141456482b410a2312b88467ceb4c26d75d (diff)
downloadlinux-c3b8f85ec24674896aac9a6e41235b8d38db3dde.tar.xz
igb: add statistic indicating number of skipped Tx timestamps
The igb driver can only handle one Tx timestamp request at a time. This means it is possible for an application timestamp request to be ignored. There is no easy way for an administrator to determine if this occurred. Add a new statistic which tracks this, tx_hwtstamp_skipped. Signed-off-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>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb.h')
-rw-r--r--drivers/net/ethernet/intel/igb/igb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index bf9bf9056d0c..be35edcf6b08 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -563,6 +563,7 @@ struct igb_adapter {
struct cyclecounter cc;
struct timecounter tc;
u32 tx_hwtstamp_timeouts;
+ u32 tx_hwtstamp_skipped;
u32 rx_hwtstamp_cleared;
bool pps_sys_wrap_on;