From: Andrew Lunn <andrew@lunn.ch>
To: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel@savoirfairelinux.com,
"David S. Miller" <davem@davemloft.net>,
Florian Fainelli <f.fainelli@gmail.com>
Subject: Re: [PATCH net-next 0/7] net: dsa: tagger simplification
Date: Tue, 30 May 2017 17:08:13 +0200 [thread overview]
Message-ID: <20170530150813.GE22758@lunn.ch> (raw)
In-Reply-To: <20170530142131.23568-1-vivien.didelot@savoirfairelinux.com>
On Tue, May 30, 2017 at 10:21:24AM -0400, Vivien Didelot wrote:
> The DSA layer has a dsa_device_ops structure containing two members to
> tag and untag the proprietary switch header, called xmit and rcv.
>
> The switch tree and slave private structures respectively hold a useless
> copy of the rcv and xmit functions. The tagging implementations use
> useless goto labels and only the rcv caller (partially) handles the SKB
> freeing. The rcv function also contains unused arguments.
>
> This patchset removes the copy of rcv and xmit functions, the unused
> arguments of the rcv signature and the useless labels, and handles
> freeing of the SKB in the xmit caller.
Hi Vivien
Since these changes are dealing with the hot path of the network
stack, it would be good to see some performance results. In
particular, from a high performance machine, 10Gbps interfaces, where
DSA is enabled, as a distro kernel might have.
Andrew
prev parent reply other threads:[~2017-05-30 15:08 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-30 14:21 [PATCH net-next 0/7] net: dsa: tagger simplification Vivien Didelot
2017-05-30 14:21 ` [PATCH net-next 1/7] net: dsa: hide dsa_uses_tagged_protocol code Vivien Didelot
2017-05-30 15:01 ` Andrew Lunn
2017-05-30 15:09 ` David Miller
2017-05-30 15:56 ` Vivien Didelot
2017-05-30 16:12 ` Andrew Lunn
2017-05-30 16:14 ` Vivien Didelot
2017-05-30 21:08 ` kbuild test robot
2017-05-30 14:21 ` [PATCH net-next 2/7] net: dsa: remove useless rcv copy in DSA tree Vivien Didelot
2017-05-30 15:05 ` Andrew Lunn
2017-05-30 15:09 ` David Miller
2017-05-30 14:21 ` [PATCH net-next 3/7] net: dsa: remove unused arguments of tagger rcv Vivien Didelot
2017-05-30 15:13 ` Andrew Lunn
2017-05-30 14:21 ` [PATCH net-next 4/7] net: dsa: free orig skb on rcv if reallocated Vivien Didelot
2017-05-30 15:25 ` Andrew Lunn
2017-05-30 15:41 ` Vivien Didelot
2017-05-30 16:26 ` Andrew Lunn
2017-05-30 14:21 ` [PATCH net-next 5/7] net: dsa: remove useless goto label in tagger rcv Vivien Didelot
2017-05-30 14:21 ` [PATCH net-next 6/7] net: dsa: remove useless copy of tagger xmit Vivien Didelot
2017-05-30 15:29 ` Andrew Lunn
2017-05-30 15:43 ` Vivien Didelot
2017-05-30 14:21 ` [PATCH net-next 7/7] net: dsa: factor skb freeing on xmit Vivien Didelot
2017-05-30 15:37 ` Andrew Lunn
2017-05-30 15:08 ` Andrew Lunn [this message]
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