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Not able to fetch ring buffer settings using ethtool
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manu.rhel
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Joined: 11 Apr 2014
Posts: 22

PostPosted: Thu Sep 16, 2021 4:33 am    Post subject: Not able to fetch ring buffer settings using ethtool Reply with quote

Hi Everyone, for some reason, I am not able to fetch ring buffer settings for the Management 1G interface on the Server using ethtool and getting the below error -

Quote:
# ethtool -g enp6s0
Ring parameters for enp6s0:
Cannot get device ring settings: Operation not supported



Quote:
# ethtool -i enp6s0
driver: r8169
version:
firmware-version: rtl8168e-3_0.0.4 03/27/12
expansion-rom-version:
bus-info: 0000:06:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no



Quote:
# ethtool enp6s0
Settings for enp6s0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: external
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes


Is there some limitation with the Nic hardware or with the driver in this case ? Please suggest.
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