NIC: CX-5
I use v4.5-1.0.1.0 driver before, and can set sniffer on by using: ethtool --set-priv-flags xxxxx sniffer on.
But when I upgrade to v5.8-2.0.3.0 LTS driver, I’m unable to do that, same command will return error:
# ethtool --set-priv-flags enp24s0f0np0 sniffer on
netlink error: bit name not found (offset 56)
netlink error: Operation not supported
I have compared the private flags in different driver version:
v4.5:
# ethtool --show-priv-flags enp23s0f0
Private flags for enp23s0f0:
rx_cqe_moder : on
tx_cqe_moder : off
rx_cqe_compress : off
rx_striding_rq : on
sniffer : off
dropless_rq : off
per_channel_stats : on
tx_xdp_hw_checksum: off
hw_lro : off
v5.8:
# ethtool --show-priv-flags enp23s0f0
Private flags for enp23s0f0:
rx_cqe_moder : on
tx_cqe_moder : off
rx_cqe_compress : off
tx_cqe_compress : off
rx_striding_rq : on
rx_no_csum_complete: off
xdp_tx_mpwqe : on
skb_tx_mpwqe : on
tx_port_ts : off
dropless_rq : off
per_channel_stats : on
hw_lro : on
tx_xdp_hw_checksum : off
skb_xmit_more : off
The sniffer is disapperaed in v5.8 driver. I wonder why and how to solve this problem?
Note: I want to set sniffer on due to I want to use tcpdump to capture offload network traffic. And the doc says I need to use ethtool --set-priv-flags xxxxx sniffer on for both v5.8 & v4.5 driver.