[LEDE-DEV] Cake SQM killing my DIR-860L - was: [17.01] Kernel: bump to 4.4.51

[Sebastian Moeller]

Hi Stijn,


> On Mar 1, 2017, at 10:46, Stijn Segers <francesco.borromini at inventati.org> wrote:
> 
> Hi Baptiste,
> 
> Thanks for your input. I found this thread [1] however which suggests offloading capabilities:
> 
> "The GSW is found in all of the 1000mbit SoCs. it has 5 external ports,
> 1-2 cpu ports and 1 further port that the internal HW offloading engine
> connects to. The switch core used is a MT7530, which also exists as a
> standalone chip. [...]"
> 
> Johh, is there a way to disable offloading on MT7530?

If you run “ethtool -k $IFACE” ethtool should show you which offloads the device supports and which can be toggled. Here is an example from a wndr3700v2 (eth1 being the dedicated WAN interface not connected to a switch)

root at router:~# ethtool -k eth1
Features for eth1:
rx-checksumming: off [fixed]
tx-checksumming: off
	tx-checksum-ipv4: off [fixed]
	tx-checksum-ip-generic: off [fixed]
	tx-checksum-ipv6: off [fixed]
	tx-checksum-fcoe-crc: off [fixed]
	tx-checksum-sctp: off [fixed]
scatter-gather: off
	tx-scatter-gather: off [fixed]
	tx-scatter-gather-fraglist: off [fixed]
tcp-segmentation-offload: off
	tx-tcp-segmentation: off [fixed]
	tx-tcp-ecn-segmentation: off [fixed]
	tx-tcp6-segmentation: off [fixed]
udp-fragmentation-offload: off [fixed]
generic-segmentation-offload: off [requested on]
generic-receive-offload: on
large-receive-offload: off [fixed]
rx-vlan-offload: off [fixed]
tx-vlan-offload: off [fixed]
ntuple-filters: off [fixed]
receive-hashing: off [fixed]
highdma: off [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]
fcoe-mtu: off [fixed]
tx-nocache-copy: off
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]
busy-poll: off [fixed]

Best Regards
	Sebastian


> 
> Thanks!
> 
> Stijn
> 
> [1] https://lkml.org/lkml/2016/2/26/527
> 
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