[Intel-wired-lan] [net-next v6 3/4] igb: support RX flow classification by VLAN priority

From: Intel-wired-lan [mailto:intel-wired-lan-bounces at lists.osuosl.org] On
Behalf Of Gangfeng
Sent: Tuesday, July 5, 2016 10:23 PM
To: intel-wired-lan at lists.osuosl.org
Cc: Gangfeng Huang <redacted>; Ruhao Gao
[off-list ref]
Subject: [Intel-wired-lan] [net-next v6 3/4] igb: support RX flow classification
by VLAN priority

From: Gangfeng Huang <redacted>

This patch is meant to allow for RX network flow classification to insert
and remove VLAN priority filter by ethtool

Example:
Add an VLAN priority filter:
$ ethtool -N eth0 flow-type ether vlan 0x6000 vlan-mask 0x1FFF action 2 loc 1

Show all filters:
$ ethtool -n eth0
4 RX rings available
Total 1 rules

Filter: 1
	Flow Type: Raw Ethernet
	Src MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF
	Dest MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF
	Ethertype: 0x0 mask: 0xFFFF
	VLAN EtherType: 0x0 mask: 0xffff
	VLAN: 0x6000 mask: 0x1fff
	User-defined: 0x0 mask: 0xffffffffffffffff
	Action: Direct to queue 2

Delete the filter by location:
$ ethtool -N delete 1

Signed-off-by: Ruhao Gao <redacted>
Signed-off-by: Gangfeng Huang <redacted>
---
 drivers/net/ethernet/intel/igb/e1000_defines.h |  4 ++
 drivers/net/ethernet/intel/igb/e1000_regs.h    |  1 +
 drivers/net/ethernet/intel/igb/igb.h           |  3 +
 drivers/net/ethernet/intel/igb/igb_ethtool.c   | 91
++++++++++++++++++++++++--
 4 files changed, 92 insertions(+), 7 deletions(-)

Tested-by: Aaron Brown <redacted>