From: Bowers, AndrewX <andrewx.bowers@intel.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [PATCH S30 8/9] ice: add build_skb() support
Date: Tue, 15 Oct 2019 23:16:41 +0000 [thread overview]
Message-ID: <9031c60af3a54619966290fdf458d51b@intel.com> (raw)
In-Reply-To: <20191009140925.13997-8-anthony.l.nguyen@intel.com>
> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Tony Nguyen
> Sent: Wednesday, October 9, 2019 7:09 AM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH S30 8/9] ice: add build_skb() support
>
> From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
>
> Driver is now prepared for building the skb around the existing Rx buffer, so
> introduce the ice_build_skb responsible for it. Make use of XDP's data_meta
> as well.
>
> I've observed around 30% less CPU consumption with build_skb Rx path, in
> comparison to legacy Rx. What stands behind such result is the avoidance of
> flow_dissector (which we were diving into via eth_get_headlen) and no
> memcpy calls.
>
> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
> ---
> drivers/net/ethernet/intel/ice/ice_txrx.c | 60 ++++++++++++++++++++++-
> 1 file changed, 59 insertions(+), 1 deletion(-)
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
next prev parent reply other threads:[~2019-10-15 23:16 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-09 14:09 [Intel-wired-lan] [PATCH S30 1/9] ice: Introduce ice_base.c Tony Nguyen
2019-10-09 14:09 ` [Intel-wired-lan] [PATCH S30 2/9] ice: get rid of per-tc flow in Tx queue configuration routines Tony Nguyen
2019-10-15 18:18 ` Bowers, AndrewX
2019-10-15 23:13 ` Bowers, AndrewX
2019-10-09 14:09 ` [Intel-wired-lan] [PATCH S30 3/9] ice: Add support for XDP Tony Nguyen
2019-10-15 23:14 ` Bowers, AndrewX
2019-10-09 14:09 ` [Intel-wired-lan] [PATCH S30 4/9] ice: Move common functions to ice_txrx_lib.c Tony Nguyen
2019-10-15 23:14 ` Bowers, AndrewX
2019-10-09 14:09 ` [Intel-wired-lan] [PATCH S30 5/9] ice: Add support for AF_XDP Tony Nguyen
2019-10-15 23:15 ` Bowers, AndrewX
2019-10-09 14:09 ` [Intel-wired-lan] [PATCH S30 6/9] ice: introduce legacy rx flag Tony Nguyen
2019-10-15 23:15 ` Bowers, AndrewX
2019-10-09 14:09 ` [Intel-wired-lan] [PATCH S30 7/9] ice: introduce frame padding computation logic Tony Nguyen
2019-10-15 23:16 ` Bowers, AndrewX
2019-10-09 14:09 ` [Intel-wired-lan] [PATCH S30 8/9] ice: add build_skb() support Tony Nguyen
2019-10-15 23:16 ` Bowers, AndrewX [this message]
2019-10-09 14:09 ` [Intel-wired-lan] [PATCH S30 9/9] ice: allow 3k MTU for XDP Tony Nguyen
2019-10-15 23:17 ` Bowers, AndrewX
2019-10-15 23:13 ` [Intel-wired-lan] [PATCH S30 1/9] ice: Introduce ice_base.c Bowers, AndrewX
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