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Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of unicast traffic

From Andrew Lunn <andrew@lunn.ch>
Newsgroups linux.kernel
Subject Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of unicast traffic
Date 2017-09-23 16:40 +0200
Message-ID <usTL3-4el-7@gated-at.bofh.it> (permalink)
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> The point is: Once both external ports are in "forwarding", I see no way
> to prevent traffic flowing directly between the external ports.

Generally, there are port vectors. Port X can send frames only to Port
Y.

If you don't have that, there are possibilities with VLANs. Each port
is given a unique VLAN. All incoming untagged traffic is tagged with
the VLAN. You just need to keep the VLAN separated and add/remove the
VLAN tag in the dsa tag driver.

     Andrew

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Thread

[PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of unicast traffic Egil Hjelmeland <privat@egil-hjelmeland.no> - 2017-09-21 11:50 +0200
  Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of  unicast traffic Andrew Lunn <andrew@lunn.ch> - 2017-09-21 16:30 +0200
    Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of  unicast traffic Egil Hjelmeland <privat@egil-hjelmeland.no> - 2017-09-22 09:10 +0200
      Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of  unicast traffic Andrew Lunn <andrew@lunn.ch> - 2017-09-22 22:10 +0200
        Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of  unicast traffic Egil Hjelmeland <privat@egil-hjelmeland.no> - 2017-09-23 12:00 +0200
          Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of  unicast traffic Andrew Lunn <andrew@lunn.ch> - 2017-09-23 16:40 +0200
            Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of  unicast traffic Egil Hjelmeland <privat@egil-hjelmeland.no> - 2017-09-25 00:10 +0200
  Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of unicast traffic Vivien Didelot <vivien.didelot@savoirfairelinux.com> - 2017-09-21 16:40 +0200
    Re: [PATCH net-next 2/2] net: dsa: lan9303: Add basic offloading of  unicast traffic Egil Hjelmeland <privat@egil-hjelmeland.no> - 2017-09-22 09:30 +0200

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