netdev - Re: [PATCH net-next 3/4] ixgbe: clean up rx time stamping code

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Date:	Tue, 01 Apr 2014 18:45:54 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	Jakub Kicinski <kubakici@...pl>
Cc:	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	Alexander Duyck <alexander.h.duyck@...el.com>,
	Jacob Keller <jacob.e.keller@...el.com>
Subject: Re: [PATCH net-next 3/4] ixgbe: clean up rx time stamping code

On Wed, 2014-04-02 at 02:52 +0200, Jakub Kicinski wrote:
> Time stamping resources are per-interface so there is no need
> to keep separate last_rx_timestamp for each rx ring, move
> last_rx_timestamp to the adapter structure.
> 
> With last_rx_timestamp inside adapter, ixgbe_ptp_rx_hwtstamp()
> inline function is reduced to a single if statement so it is
> no longer necessary. If statement is placed directly in
> ixgbe_process_skb_fields() fixing likely/unlikely marking.
> 
> Checks for q_vector or adapter to be NULL are superfluous.
> 
> Comment about taking I/O hit is a leftover from previous design.
> 
> Signed-off-by: Jakub Kicinski <kubakici@...pl>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe.h      | 21 ++--------------
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  3 ++-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c  | 36
> ++++++++-------------------
>  3 files changed, 15 insertions(+), 45 deletions(-)

Added to my queue, thanks!

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