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Offload parameters for Ethernet Card

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Operating Systems Linux Offload parameters for Ethernet Card
# 1  
Old 06-02-2009
Question Offload parameters for Ethernet Card
Hi,

Actually i want to see Offload parameter for my Eth card.

Quote:
# /sbin/ip a
1: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:14:4f:e4:db:00 brd ff:ff:ff:ff:ff:ff
inet 172.28.16.211/26 brd 172.28.16.255 scope global eth0
inet6 fe80::214:4fff:fee4:db00/64 scope link
valid_lft forever preferred_lft forever
2: eth4: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:21:28:2e:4a:46 brd ff:ff:ff:ff:ff:ff
inet 172.24.212.1/24 scope global eth4
inet 172.24.212.3/32 scope global eth4
inet6 fe80::221:28ff:fe2e:4a46/64 scope link
valid_lft forever preferred_lft forever
Then after i try using this command

Quote:
# /usr/sbin/ethtool -k eth0
Offload parameters for eth0:
Cannot get device rx csum settings: Operation not supported
Cannot get device tx csum settings: Operation not supported
Cannot get device scatter-gather settings: Operation not supported
Cannot get device tcp segmentation offload settings: Operation not supported
no offload info available
# /usr/sbin/ethtool -k eth4
Offload parameters for eth4:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp segmentation offload: on

Quote:
# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:14:4F:E4SmilieB:00
inet addr:172.28.16.211 Bcast:172.28.16.255 Mask:255.255.255.192
inet6 addr: fe80::214:4fff:fee4:db00/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:196444186 errors:0 dropped:0 overruns:0 frame:0
TX packets:126560360 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:20990958642 (20018.5 Mb) TX bytes:417131891096 (397807.9 Mb)
Interrupt:58 Base address:0xe000

eth4 Link encap:Ethernet HWaddr 00:21:28:2E:4A:46
inet addr:172.24.212.1 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::221:28ff:fe2e:4a46/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17926243883 errors:0 dropped:0 overruns:0 frame:0
TX packets:21495604703 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4256785781687 (4059587.2 Mb) TX bytes:19173831591954 (18285590.7 Mb)
Interrupt:82

Anybody can explain ?
Is there any problem with my eth card ?
# 2  
Old 06-04-2009
Operation not supported, means operation not supported. Not all network cards support all features possible in a Linux driver.
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