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Message-ID: <ade0ed87-be4f-e3c7-5e01-4bfdb78fae07@molgen.mpg.de>
Date: Wed, 16 Mar 2022 06:33:44 +0100
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Jakub Kicinski <kuba@...nel.org>, Michal Kubecek <mkubecek@...e.cz>
Cc: Ariel Elior <aelior@...vell.com>,
Sudarsana Kalluru <skalluru@...vell.com>,
Manish Chopra <manishc@...vell.com>, netdev@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org, it+netdev@...gen.mpg.de
Subject: Re: bnx2x: ppc64le: Unable to set message level greater than 0x7fff
Dear Jakub,
Sorry, one more addition.
Am 16.03.22 um 06:16 schrieb Paul Menzel:
> 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 */
Testing this on the x86_64 Dell OptiPlex 5055 with a Broadcom NetXtreme
BCM5762 Gigabit Ethernet PCIe [14e4:1687], it still works.
```
$ uname -a
Linux serotimor.molgen.mpg.de 5.17.0-rc5.mx64.428 #1 SMP PREEMPT Mon Feb
21 04:00:47 CET 2022 x86_64 GNU/Linux
$ sudo ethtool -s net00 msglvl 0x0100000
$ ethtool net00
Settings for net00:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
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
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00100000 (1048576)
0x100000
Link detected: yes
$ sudo ethtool -s net00 msglvl 0xfffffff
$ ethtool net00
Settings for net00:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
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
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x0fffffff (268435455)
drv probe link timer ifdown ifup rx_err tx_err tx_queued intr
tx_done rx_status pktdata hw wol 0xfff8000
Link detected: yes
```
Kind regards,
Paul
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