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Date: Thu, 8 Feb 2024 20:58:15 +0530
From: "Aithal, Srikanth" <sraithal@....com>
To: Heiner Kallweit <hkallweit1@...il.com>,
 Stephen Rothwell <sfr@...b.auug.org.au>, andrew@...n.ch,
 Jakub Kicinski <kuba@...nel.org>
Cc: Linux Next Mailing List <linux-next@...r.kernel.org>,
 Linux Regressions <regressions@...ts.linux.dev>,
 open list <linux-kernel@...r.kernel.org>
Subject: Re: linux-next20240208: tg3 driver nw interfaces not getting
 configured

On 2/8/2024 7:32 PM, Heiner Kallweit wrote:
> On 08.02.2024 12:05, Aithal, Srikanth wrote:
>> On 2/8/2024 4:16 PM, Heiner Kallweit wrote:
>>> On 08.02.2024 09:30, Aithal, Srikanth wrote:
>>>> Hi,
>>>>
>>>> On 6.8.0-rc3-next-20240208, the network interfaces are not getting configured.
>>>>
>>> Thanks for the report. Could you please elaborate on what "not getting
>>> configured" means in detail?
>>> - Any error in any log?
>>> - Any other error message?
>>> - Interface doesn't come up or which specific configuration are you missing?
>>>
>> I am not seeing any errors in the dmesg,
>>
>> [    4.019383] tg3 0000:c1:00.0 eth0: Tigon3 [partno(BCM95720) rev 5720000] (PCI Express) MAC address d0:8e:79:bb:95:90
>> [    4.019391] tg3 0000:c1:00.0 eth0: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1])
>> [    4.019394] tg3 0000:c1:00.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
>> [    4.019397] tg3 0000:c1:00.0 eth0: dma_rwctrl[00000001] dma_mask[64-bit]
>> [    4.041082] tg3 0000:c1:00.1 eth1: Tigon3 [partno(BCM95720) rev 5720000] (PCI Express) MAC address d0:8e:79:bb:95:91
>> [    4.041087] tg3 0000:c1:00.1 eth1: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1])
>> [    4.041090] tg3 0000:c1:00.1 eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
>> [    4.041092] tg3 0000:c1:00.1 eth1: dma_rwctrl[00000001] dma_mask[64-bit]
>> [    4.077483] tg3 0000:c1:00.1 eno8403: renamed from eth1
>> [    4.124657] tg3 0000:c1:00.0 eno8303: renamed from eth0
>>
>> nmcli says interfaces are disconnected:
>>
>> [root@...alhost ~]# nmcli
>> eno8303: disconnected
>>          "Broadcom and subsidiaries NetXtreme BCM5720"
>>          ethernet (tg3), D0:8E:79:BB:95:90, hw, mtu 1500
>>
>> eno8403: disconnected
>>          "Broadcom and subsidiaries NetXtreme BCM5720"
>>          ethernet (tg3), D0:8E:79:BB:95:91, hw, mtu 1500
>>
>> I am attaching host dmesg.
>>
> 
> Thanks. dmesg lists no error. Please send output from the following commands.
> 
> ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode 
DEFAULT group default qlen 1000
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eno8303: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state 
DOWN mode DEFAULT group default qlen 1000
     link/ether d0:8e:79:bb:95:90 brd ff:ff:ff:ff:ff:ff
     altname enp193s0f0
3: eno8403: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state 
DOWN mode DEFAULT group default qlen 1000
     link/ether d0:8e:79:bb:95:91 brd ff:ff:ff:ff:ff:ff
     altname enp193s0f1

> ethtool <if>
Settings for eno8303:
         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
         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
         Speed: Unknown!
         Duplex: Unknown! (255)
         Auto-negotiation: on
         Port: Twisted Pair
         PHYAD: 1
         Transceiver: internal
         MDI-X: Unknown
         Supports Wake-on: g
         Wake-on: d
         Current message level: 0x000000ff (255)
                                drv probe link timer ifdown ifup rx_err 
tx_err
         Link detected: no

Settings for eno8403:
         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
         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
         Speed: Unknown!
         Duplex: Unknown! (255)
         Auto-negotiation: on
         Port: Twisted Pair
         PHYAD: 2
         Transceiver: internal
         MDI-X: Unknown
         Supports Wake-on: g
         Wake-on: d
         Current message level: 0x000000ff (255)
                                drv probe link timer ifdown ifup rx_err 
tx_err
         Link detected: no

> ethtool --show-eee <if>
EEE settings for eno8403:
         EEE status: enabled - inactive
         Tx LPI: 2047 (us)
         Supported EEE link modes:  100baseT/Full
                                    1000baseT/Full
         Advertised EEE link modes:  100baseT/Full
                                     1000baseT/Full
         Link partner advertised EEE link modes:  Not reported

EEE settings for eno8303:
         EEE status: enabled - inactive
         Tx LPI: 2047 (us)
         Supported EEE link modes:  100baseT/Full
                                    1000baseT/Full
         Advertised EEE link modes:  100baseT/Full
                                     1000baseT/Full
         Link partner advertised EEE link modes:  Not reported

> 
> If the interfaces aren't up, please try to bring them up manually and see what happens.
> ip link set <if> up
Nothing happens.
[root@...alhost ~]# ip link set eno8303 up
[root@...alhost ~]# ip link set eno8403 up
[root@...alhost ~]# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode 
DEFAULT group default qlen 1000
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eno8303: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state 
DOWN mode DEFAULT group default qlen 1000
     link/ether d0:8e:79:bb:95:90 brd ff:ff:ff:ff:ff:ff
     altname enp193s0f0
3: eno8403: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state 
DOWN mode DEFAULT group default qlen 1000
     link/ether d0:8e:79:bb:95:91 brd ff:ff:ff:ff:ff:ff
     altname enp193s0f1

> 
> 
>>>> I have 'NetXtreme BCM5720 Gigabit Ethernet PCIe'
>>>>          configuration: autonegotiation=on broadcast=yes driver=tg3
>>>>
>>>> If I revert below commit I am able to get back the interfaces mentioned.
>>>>
>>>> commit 9bc791341bc9a5c22b94889aa37993bb69faa317
>>>> Author: Heiner Kallweit <hkallweit1@...il.com>
>>>> Date:   Sat Feb 3 22:12:50 2024 +0100
>>>>
>>>>       tg3: convert EEE handling to use linkmode bitmaps
>>>>
>>>>       Convert EEE handling to use linkmode bitmaps. This prepares for
>>>>       removing the legacy bitmaps from struct ethtool_keee.
>>>>       No functional change intended.
>>>>
>>>>       Note: The change to mii_eee_cap1_mod_linkmode_t(tp->eee.advertised, val)
>>>>       in tg3_phy_autoneg_cfg() isn't completely obvious, but it doesn't change
>>>>       the current functionality.
>>>>
>>>>       Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
>>>>       Reviewed-by: Andrew Lunn <andrew@...n.ch>
>>>>       Link: https://lore.kernel.org/r/0652b910-6bcc-421f-8769-38f7dae5037e@gmail.com
>>>>       Signed-off-by: Jakub Kicinski <kuba@...nel.org>
>>>>
>>>>
>>>> The same works fine on 6.8.0-rc3-next-20240207.
>>>>
>>>> Thanks,
>>>> Srikanth Aithal
>>>> sraithal@....com
>>> Heiner
> 


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