bnx2: can't disable rx-vlan-offload?

bnx2: can't disable rx-vlan-offload?

[Lukas Tribus]

Hi!


For a passive, libpcap based sniffer I'm trying to disable rx vlan
offload on a bnx2 card (vlan capture filter in libpcap doesn't work
correctly), but I'm not able to:

disabling rxvlan fails:

root@sniffer:~# ethtool -K eth1 rxvlan off
Could not change any device features
root@sniffer:~#
root@sniffer:~# ethtool -k eth1
Features for eth1:
rx-checksumming: on
tx-checksumming: on
        tx-checksum-ipv4: on
        tx-checksum-ip-generic: off [fixed]
        tx-checksum-ipv6: on
        tx-checksum-fcoe-crc: off [fixed]
        tx-checksum-sctp: off [fixed]
scatter-gather: on
        tx-scatter-gather: on
        tx-scatter-gather-fraglist: off [fixed]
tcp-segmentation-offload: on
        tx-tcp-segmentation: on
        tx-tcp-ecn-segmentation: on
        tx-tcp6-segmentation: on
udp-fragmentation-offload: off [fixed]
generic-segmentation-offload: on
generic-receive-offload: on
large-receive-offload: off [fixed]
rx-vlan-offload: on [requested off]
tx-vlan-offload: on
ntuple-filters: off [fixed]
receive-hashing: on
highdma: on [fixed]
rx-vlan-filter: off [fixed]
vlan-challenged: off [fixed]
tx-lockless: off [fixed]
netns-local: off [fixed]
tx-gso-robust: off [fixed]
tx-fcoe-segmentation: off [fixed]
tx-gre-segmentation: off [fixed]
tx-ipip-segmentation: off [fixed]
tx-sit-segmentation: off [fixed]
tx-udp_tnl-segmentation: off [fixed]
tx-mpls-segmentation: off [fixed]
fcoe-mtu: off [fixed]
tx-nocache-copy: on
loopback: off [fixed]
rx-fcs: off [fixed]
rx-all: off [fixed]
tx-vlan-stag-hw-insert: off [fixed]
rx-vlan-stag-hw-parse: off [fixed]
rx-vlan-stag-filter: off [fixed]
l2-fwd-offload: off [fixed]
root@sniffer:~#
root@sniffer:~# ethtool -i eth1
driver: bnx2
version: 2.2.4
firmware-version: 5.0.9 bc 5.0.6 NCSI 2.0.3
bus-info: 0000:01:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
root@sniffer:~#

dmesg bnx2 lines:
[    6.974972] bnx2: Broadcom NetXtreme II Gigabit Ethernet Driver bnx2 v2.2.4 (Aug 05, 2013)
[    6.975681] bnx2 0000:01:00.0 eth0: Broadcom NetXtreme II BCM5716 1000Base-T (C0) PCI Express found at mem da000000, IRQ 36, node addr 00:26:b9:51:ba:59
[    6.976631] bnx2 0000:01:00.1 eth1: Broadcom NetXtreme II BCM5716 1000Base-T (C0) PCI Express found at mem dc000000, IRQ 48, node addr 00:26:b9:51:ba:5a


I'm using Ubuntus 3.13 kernel and ethtool version 3.13, but I previously
tried ethtool 3.1 on both ubuntu 3.8 kernel and a vanilla 3.14.21
kernel as well.


Any ideas or workarounds that may help disabling rx vlan acceleration?




Thanks!

Lukas


 		 	   		  

Re: bnx2: can't disable rx-vlan-offload?

[Vlad Yasevich]

On 10/14/2014 06:05 PM, Lukas Tribus wrote:
> Hi!
> 
> 
> For a passive, libpcap based sniffer I'm trying to disable rx vlan
> offload on a bnx2 card (vlan capture filter in libpcap doesn't work
> correctly), but I'm not able to:
> 
> disabling rxvlan fails:
> 
> root@sniffer:~# ethtool -K eth1 rxvlan off
> Could not change any device features
> root@sniffer:~#
> root@sniffer:~# ethtool -k eth1
> Features for eth1:
> rx-checksumming: on
> tx-checksumming: on
>         tx-checksum-ipv4: on
>         tx-checksum-ip-generic: off [fixed]
>         tx-checksum-ipv6: on
>         tx-checksum-fcoe-crc: off [fixed]
>         tx-checksum-sctp: off [fixed]
> scatter-gather: on
>         tx-scatter-gather: on
>         tx-scatter-gather-fraglist: off [fixed]
> tcp-segmentation-offload: on
>         tx-tcp-segmentation: on
>         tx-tcp-ecn-segmentation: on
>         tx-tcp6-segmentation: on
> udp-fragmentation-offload: off [fixed]
> generic-segmentation-offload: on
> generic-receive-offload: on
> large-receive-offload: off [fixed]
> rx-vlan-offload: on [requested off]
> tx-vlan-offload: on
> ntuple-filters: off [fixed]
> receive-hashing: on
> highdma: on [fixed]
> rx-vlan-filter: off [fixed]
> vlan-challenged: off [fixed]
> tx-lockless: off [fixed]
> netns-local: off [fixed]
> tx-gso-robust: off [fixed]
> tx-fcoe-segmentation: off [fixed]
> tx-gre-segmentation: off [fixed]
> tx-ipip-segmentation: off [fixed]
> tx-sit-segmentation: off [fixed]
> tx-udp_tnl-segmentation: off [fixed]
> tx-mpls-segmentation: off [fixed]
> fcoe-mtu: off [fixed]
> tx-nocache-copy: on
> loopback: off [fixed]
> rx-fcs: off [fixed]
> rx-all: off [fixed]
> tx-vlan-stag-hw-insert: off [fixed]
> rx-vlan-stag-hw-parse: off [fixed]
> rx-vlan-stag-filter: off [fixed]
> l2-fwd-offload: off [fixed]
> root@sniffer:~#
> root@sniffer:~# ethtool -i eth1
> driver: bnx2
> version: 2.2.4
> firmware-version: 5.0.9 bc 5.0.6 NCSI 2.0.3
> bus-info: 0000:01:00.1
> supports-statistics: yes
> supports-test: yes
> supports-eeprom-access: yes
> supports-register-dump: yes
> supports-priv-flags: no
> root@sniffer:~#
> 
> dmesg bnx2 lines:
> [    6.974972] bnx2: Broadcom NetXtreme II Gigabit Ethernet Driver bnx2 v2.2.4 (Aug 05, 2013)
> [    6.975681] bnx2 0000:01:00.0 eth0: Broadcom NetXtreme II BCM5716 1000Base-T (C0) PCI Express found at mem da000000, IRQ 36, node addr 00:26:b9:51:ba:59
> [    6.976631] bnx2 0000:01:00.1 eth1: Broadcom NetXtreme II BCM5716 1000Base-T (C0) PCI Express found at mem dc000000, IRQ 48, node addr 00:26:b9:51:ba:5a
> 
> 
> I'm using Ubuntus 3.13 kernel and ethtool version 3.13, but I previously
> tried ethtool 3.1 on both ubuntu 3.8 kernel and a vanilla 3.14.21
> kernel as well.
> 
> 
> Any ideas or workarounds that may help disabling rx vlan acceleration?

Try bringing the interface down first.  BNX2 is a bit strange in how it handles
vlan feature changes.

-vlad

> 
> 
> 
> 
> Thanks!
> 
> Lukas
> 
> 
>  		 	   		  --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

RE: bnx2: can't disable rx-vlan-offload?

[Lukas Tribus]

Hi Vlad,


>> Any ideas or workarounds that may help disabling rx vlan acceleration?
>
> Try bringing the interface down first. BNX2 is a bit strange in how it handles
> vlan feature changes.

I tried, doesn't work.


Anyway, I reproduced the original issue on e1000e with and without
rxvlan offload, so even if I would be able to disable this on bnx2, the
original problem would not go away.

I will do some more troubleshooting on the original issue with e1000e
and will come back in a new thread if it turns out to be a problem.



Thanks,

Lukas