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Open Source and information security mailing list archives
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Date: Tue, 5 Jan 2016 13:49:39 +0100 From: Richard Cochran <richardcochran@...il.com> To: Saeed Mahameed <saeedm@...lanox.com> Cc: "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>, Eran Ben Elisha <eranbe@...lanox.com>, Tal Alon <talal@...lanox.com>, Majd Dibbiny <majd@...lanox.com>, Achiad Shochat <achiad@...lanox.com>, saeedm@....mellanox.co.il Subject: Re: [PATCH net-next V3 4/4] net/mlx5e: Add PTP Hardware Clock (PHC) support On Tue, Dec 29, 2015 at 02:58:32PM +0200, Saeed Mahameed wrote: > From: Eran Ben Elisha <eranbe@...lanox.com> > > 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 driver has been tested with both Documentation/ptp/testptp and the > linuxptp project (http://linuxptp.sourceforge.net/) on a Mellanox > ConnectX-4 card. > > Signed-off-by: Eran Ben Elisha <eranbe@...lanox.com> > Cc: Richard Cochran <richardcochran@...il.com> > Signed-off-by: Saeed Mahameed <saeedm@...lanox.com> Acked-by: Richard Cochran <richardcochran@...il.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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