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author | David S. Miller <davem@davemloft.net> | 2022-03-14 10:36:15 +0000 |
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committer | David S. Miller <davem@davemloft.net> | 2022-03-14 10:36:15 +0000 |
commit | 92ebb2361e1b32d4b5975f017289473ed84ab86d (patch) | |
tree | f3b6c203244b3d33ad2a24a184be3929ec6a4189 /drivers/phy | |
parent | selftests: tc-testing: Increase timeout in tdc config file (diff) | |
parent | net: dsa: felix: configure default-prio and dscp priorities (diff) | |
download | linux-dev-92ebb2361e1b32d4b5975f017289473ed84ab86d.tar.xz linux-dev-92ebb2361e1b32d4b5975f017289473ed84ab86d.zip |
Merge branch 'dsa-felix-qos'
Vladimir Oltean says:
====================
Basic QoS classification on Felix DSA switch using dcbnl
Basic QoS classification for Ocelot switches means port-based default
priority, DSCP-based and VLAN PCP based. This is opposed to advanced QoS
classification which is done through the VCAP IS1 TCAM based engine.
The patch set is a logical continuation of this RFC which attempted to
describe the default-prio as a matchall entry placed at the end of a
series of offloaded tc filters:
https://patchwork.kernel.org/project/netdevbpf/cover/20210113154139.1803705-1-olteanv@gmail.com/
I have tried my best to satisfy the feedback that we should cater for
pre-configured QoS profiles. Ironically, the only pre-configured QoS
profile that the Felix switch driver has is for VLAN PCP (1:1 mapping
with QoS class), yet IEEE 802.1Q or dcbnl offer no mechanism for
reporting or changing that.
Testing was done with the iproute2 dcb app. The qos_class of packets was
dumped from net/dsa/tag_ocelot.c.
(1) $ dcb app show dev swp3
default-prio 0
(2) $ dcb app replace dev swp3 default-prio 3
(3) $ dcb app replace dev swp3 dscp-prio CS3:5
(4) $ dcb app replace dev swp3 dscp-prio CS2:2
(5) $ dcb app show dev swp3
default-prio 3
dscp-prio CS2:2 CS3:5
Traffic sent with "ping -Q 64 <ipaddr>", which means CS2.
These packets match qos_class 0 after command (1),
qos_class 3 after command (2),
qos_class 3 after command (3), and
qos_class 2 after command (2).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/phy')
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