Dear Jakub,
Am 16.03.22 um 02:35 schrieb Jakub Kicinski:
On Tue, 15 Mar 2022 22:58:57 +0100 Paul Menzel wrote:
On the POWER8 server IBM S822LC (ppc64le), I am unable to set the
message level for the network device to 0x0100000 but it fails.
$ sudo ethtool -s enP1p1s0f2 msglvl 0x0100000
netlink error: cannot modify bits past kernel bitset size (offset 56)
netlink error: Invalid argument
Below is more information. 0x7fff is the largest value I am able to set.
```
$ sudo ethtool -i enP1p1s0f2
driver: bnx2x
version: 5.17.0-rc7+
firmware-version: bc 7.10.4
expansion-rom-version:
bus-info: 0001:01:00.2
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
$ sudo ethtool -s enP1p1s0f2 msglvl 0x7fff
$ sudo ethtool enP1p1s0f2
Settings for enP1p1s0f2:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
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/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Auto-negotiation: on
Port: Twisted Pair
PHYAD: 17
Transceiver: internal
MDI-X: Unknown
Supports Wake-on: g
Wake-on: d
Current message level: 0x00007fff (32767)
drv probe link timer ifdown ifup rx_err tx_err
tx_queued intr tx_done rx_status pktdata hw wol
Link detected: no
$ sudo ethtool -s enP1p1s0f2 msglvl 0x8000
netlink error: cannot modify bits past kernel bitset size (offset 56)
netlink error: Invalid argument
```
The new ethtool-over-netlink API limits the msg levels to the ones
officially defined by the kernel (NETIF_MSG_CLASS_COUNT).
CC: Michal
Thank you for the prompt reply. So, it’s unrelated to the architecture,
and to the Linux kernel version, as it works on x86_64 with Linux 5.10.x.
Michal, how do I turn on certain bnx2x messages?
$ git grep BNX2X_MSG_SP drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h:#define BNX2X_MSG_SP
0x0100000 /* was: NETIF_MSG_INTR */
Kind regards,
Paul
