Re: [PATCH net-next V2 4/4] net/mlx5e: Add PTP Hardware Clock (PHC) support

2015-12-21 Thread Richard Cochran
On Sun, Dec 20, 2015 at 11:46:31PM +0200, Saeed Mahameed wrote: > From: Eran Ben Elisha > > 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

[PATCH net-next V2 4/4] net/mlx5e: Add PTP Hardware Clock (PHC) support

2015-12-20 Thread Saeed Mahameed
From: Eran Ben Elisha 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