Re: 4.9.0-rc8: tg3 dead after resume

On Fri, Dec 9, 2016 at 7:59 PM, Billy Shuman [off-list ref] wrote:

On Thu, Dec 8, 2016 at 4:03 AM, Siva Reddy Kallam
[off-list ref] wrote:

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On Thu, Dec 8, 2016 at 12:14 AM, Billy Shuman [off-list ref] wrote:

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On Wed, Dec 7, 2016 at 12:37 PM, Michael Chan [off-list ref] wrote:

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On Wed, Dec 7, 2016 at 7:20 AM, Billy Shuman [off-list ref] wrote:

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After resume on 4.9.0-rc8 tg3 is dead.

In logs I see:
kernel: tg3 0000:44:00.0: phy probe failed, err -19
kernel: tg3 0000:44:00.0: Problem fetching invariants of chip, aborting

-19 is -ENODEV which means tg3 cannot read the PHY ID.

If it's a true suspend/resume operation, the driver does not have to
go through probe during resume.  Please explain how you do
suspend/resume.

Sorry my previous message was accidentally sent to early.

I used systemd (systemctl suspend) to suspend.

We need more information to proceed further.
Without suspend, Are you able to use the tg3 port?

Yes the port works fine without suspend.

OK

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Which Broadcom card are you having in laptop?

The nic is a NetXtreme BCM57762 Gigabit Ethernet PCIe in a thunderbolt3 dock.

OK

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Please provide complete tg3 specific logs in dmesg.

[   32.084010] tg3.c:v3.137 (May 11, 2014)
[   32.124695] tg3 0000:44:00.0 eth0: Tigon3 [partno(BCM957762) rev
57766001] (PCI Express) MAC address 98:e7:f4:8b:13:19
[   32.124698] tg3 0000:44:00.0 eth0: attached PHY is 57765
(10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1])
[   32.124699] tg3 0000:44:00.0 eth0: RXcsums[1] LinkChgREG[0]
MIirq[0] ASF[0] TSOcap[1]
[   32.124700] tg3 0000:44:00.0 eth0: dma_rwctrl[00000001] dma_mask[64-bit]
[   32.219764] tg3 0000:44:00.0 enp68s0: renamed from eth0
[   36.219245] tg3 0000:44:00.0 enp68s0: Link is up at 1000 Mbps, full duplex
[   36.219250] tg3 0000:44:00.0 enp68s0: Flow control is on for TX and on for RX
[   36.219251] tg3 0000:44:00.0 enp68s0: EEE is disabled

after resume
[   92.292838] tg3 0000:44:00.0 enp68s0: No firmware running
[   93.521744] tg3 0000:44:00.0: tg3_abort_hw timed out,
TX_MODE_ENABLE will not clear MAC_TX_MODE=ffffffff
[  106.704655] tg3 0000:44:00.0 enp68s0: Link is down
[  108.370356] tg3 0000:44:00.0: tg3_abort_hw timed out,
TX_MODE_ENABLE will not clear MAC_TX_MODE=ffffffff

after rmmod, modprobe
[  570.933636] tg3 0000:44:00.0: tg3_abort_hw timed out,
TX_MODE_ENABLE will not clear MAC_TX_MODE=ffffffff
[  604.847215] tg3.c:v3.137 (May 11, 2014)
[  605.010075] tg3 0000:44:00.0: phy probe failed, err -19
[  605.010077] tg3 0000:44:00.0: Problem fetching invariants of chip, aborting

We will try to reproduce and update you on this.

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Did this work before?  There has been very few changes to tg3 recently.

This is a new laptop for me, but the same behavior is seen on 4.4.36 and 4.8.12.

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rmmod and modprobe does not fix the problem only a reboot resolves the issue.

Billy