linux-kernel - [PATCH net-next 0/9] net: ethernet: ti: am65-cpsw: add network flow classification support

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Message-Id: <20250319-am65-cpsw-rx-class-v1-0-2bfded07490e@kernel.org>
Date: Wed, 19 Mar 2025 15:38:26 +0200
From: Roger Quadros <rogerq@...nel.org>
To: Siddharth Vadapalli <s-vadapalli@...com>, 
 Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Russell King <linux@...linux.org.uk>, danishanwar@...com
Cc: srk@...com, linux-omap@...r.kernel.org, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Roger Quadros <rogerq@...nel.org>
Subject: [PATCH net-next 0/9] net: ethernet: ti: am65-cpsw: add network
 flow classification support

Adds support for -N/--config-nfc ethtool command for
configuring RX classfiers.

Currently only raw Ethernet (flow-type ether) matching is added
based on source/destination addresses and VLAN Priority (PCP).

The ALE policer engine is used to perform the matching and routing to
a specific RX channel.

Test cases:

Increase number of RX channels to 8
ip link set eth1 down
ip link set eth0 down
ethtool -L eth0 rx 8

1) Ether source address test
	ethtool -N eth0 flow-type ether src xx:yy:zz:aa:bb:cc action 5

  Traffic from that address should route to channel 5

2) Ether destination address test
	ethtool -N eth0 flow-type ether src yy:zz:aa:bb:cc:dd action 4

  Traffic to that address should route to channel 4

3) Drop test
	ethtool -N end0 flow-type ether src xx:yy:zz:aa:bb:cc action -1

  Traffic from that address should be dropped

4) VLAN PCP test

on Remote create VLAN with ID 5 and all traffic mapping to required priority to test. e.g. 7
	sudo ip link add link eno1 name eno1.5 type vlan id 5 egress-qos-map 0:7 1:7 2:7 3:7 4:7 5:7 6:7 7:7
	sudo ifconfig eno1.5 192.168.10.1

on DUT create VLAN with id 5
	ip link add link end0 name end0.5 type vlan id 5
	ifconfig end0.5 192.168.10.5

VLAN pcp 7 vid 5 route to RX channel 6
	ethtool -N end0 flow-type ether vlan 0xe005 action 6

  Traffic from that VLAN with PCP 7 should route to channel 6

Signed-off-by: Roger Quadros <rogerq@...nel.org>
---
Roger Quadros (9):
      net: ethernet: ti: cpsw_ale: Update Policer fields for more ALE size/ports
      net: ethernet: ti: cpsw_ale: return ALE index in cpsw_ale_add_vlan()
      net: ethernet: ti: cpsw_ale: return ALE index in cpsw_ale_vlan_add_modify()
      net: ethernet: ti: cpsw_ale: return ALE index in cpsw_ale_add_ucast()
      net: ethernet: ti: cpsw_ale: add cpsw_ale_policer_reset_entry()
      net: ethernet: ti: cpsw_ale: add cpsw_ale_policer_set/clr_entry()
      net: ethernet: ti: cpsw_ale: add policer save restore for PM sleep
      net: ethernet: ti: am65-cpsw: add network flow classification support
      net: ethernet: ti: am65-cpsw: remove cpsw_ale_classifier_setup_default()

 drivers/net/ethernet/ti/am65-cpsw-ethtool.c   | 348 ++++++++++++++++++++++++++
 drivers/net/ethernet/ti/am65-cpsw-nuss.c      |  31 ++-
 drivers/net/ethernet/ti/am65-cpsw-nuss.h      |  16 ++
 drivers/net/ethernet/ti/am65-cpsw-switchdev.c |   6 +-
 drivers/net/ethernet/ti/cpsw.c                |   4 +-
 drivers/net/ethernet/ti/cpsw_ale.c            | 221 ++++++++++------
 drivers/net/ethernet/ti/cpsw_ale.h            |  37 ++-
 drivers/net/ethernet/ti/cpsw_new.c            |   4 +-
 drivers/net/ethernet/ti/cpsw_switchdev.c      |   6 +-
 9 files changed, 580 insertions(+), 93 deletions(-)
---
base-commit: 23c9ff659140f97d44bf6fb59f89526a168f2b86
change-id: 20250305-am65-cpsw-rx-class-666006fab9dd

Best regards,
-- 
Roger Quadros <rogerq@...nel.org>