I am using a Yocto Linux System
ID="poky"
NAME="Poky (Yocto Project Reference Distro)"
VERSION="3.0.4 (zeus)"
VERSION_ID="3.0.4"
PRETTY_NAME="Poky (Yocto Project Reference Distro) 3.0.4 (zeus)"
With this kernel 5.4.47-rt28
I am using a TQ MBLS1028A-IND with this network card "Ethernet controller: Freescale Semiconductor Inc Device e100"
With the ethtool of the interface I get the following info
ethtool eno0
Settings for eno0:
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: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 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: 3
Transceiver: internal
Auto-negotiation: on
Link detected: yes
When I try to run the following command to increase the ring buffer
# ethtool -G eno0 rx 4096
I get the following error
Cannot set device ring parameters: Operation not supported
In this question it was say that I can increase it with by editing one line of this file
/etc/sysconfig/network-scripts/ifcfg-eno0
But I dont have that file
Do you have hint of how I can do to increase the ring parameter?
Another output that can be of help
# ethtool -g eno0
Ring parameters for eno0:
Pre-set maximums:
RX: 0
RX Mini: 0
RX Jumbo: 0
TX: 0
Current hardware settings:
RX: 512
RX Mini: 0
RX Jumbo: 0
TX: 256
