Re: [PATCH v7 8/8] net: e1000e: Adds hardware supported cross timestamp on e1000e nic

2016-02-18 Thread Jeff Kirsher
On Fri, 2016-02-12 at 12:25 -0800, Christopher S. Hall wrote: > Modern Intel systems supports cross timestamping of the network > device > clock and Always Running Timer (ART) in hardware.  This allows the > device time and system time to be precisely correlated. The timestamp > pair is returned th

[PATCH v7 8/8] net: e1000e: Adds hardware supported cross timestamp on e1000e nic

2016-02-12 Thread Christopher S. Hall
Modern Intel systems supports cross timestamping of the network device clock and Always Running Timer (ART) in hardware. This allows the device time and system time to be precisely correlated. The timestamp pair is returned through e1000e_phc_get_syncdevicetime() used by get_system_device_crosstst