On Wed, Dec 16, 2015 at 06:46:34PM +0200, Saeed Mahameed wrote:

From: Eran Ben Elisha <redacted>

Add support for enable/disable HW timestamping for incoming and/or
outgoing packets. It adds and initializes all structs and callbacks
needed by kernel TS API.  To enable/disable HW timestamping appropriate
ioctl should be used.  Currently HWTSTAMP_FILTER_ALL/NONE and
HWTSAMP_TX_ON/OFF only are supported.  Make all relevant changes in
RX/TX flows to consider TS request and plant HW timestamps into
relevant structures.

Add a PHC support to the mlx5_en driver. Use reader/writer spinlocks to
protect the timecounter since every packet received needs to call
timecounter_cycle2time() when timestamping is enabled.  This can become
a performance bottleneck with RSS and multiple receive queues if normal
spinlocks are used.

The subject line doesn't mention PHC.  Please break this into two patches.

1. add hw time stamping
2. add phc support

Also, please CC the ptp maintainer for ptp patches.

Thanks,
Richard