Messages in this thread | | | Date | Tue, 17 Apr 2012 10:18:57 -0400 | From | Josh Boyer <> | Subject | tg3 'No PHY devices' loading issue |
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Hi Matt and Michael,
I'm seeing an odd issue with the tg3 driver on one of my development machines. I've tried kernels 3.2.10, 3.3.0, 3.3.1, 3.3.2 and 3.4-rc3 and they all seem to exhibit this issue now. When the machine boots and the tg3 driver is loaded, it fails to find a PHY and then reports 'Problem fetching invariants of chip'. If I do a rmmod/modprobe of tg3 after login, the probe seems to work fine and ethernet works as expected. You can see this in the dmesg below:
[jwboyer@vader ~]$ dmesg | grep tg3 [ 2.084969] tg3.c:v3.122 (December 7, 2011) [ 2.093511] tg3 mdio bus: probed [ 2.093513] tg3 0000:03:00.0: No PHY devices [ 2.093531] tg3 0000:03:00.0: Problem fetching invariants of chip, aborting [ 90.824697] tg3.c:v3.122 (December 7, 2011) [ 90.857068] tg3 mdio bus: probed [ 90.862540] tg3 0000:03:00.0: eth0: Tigon3 [partno(BCM57788) rev 57780001] (PCI Express) MAC address 18:03:73:e6:01:88 [ 90.862547] tg3 0000:03:00.0: eth0: attached PHY driver [Broadcom BCM57780] (mii_bus:phy_addr=300:01) [ 90.862552] tg3 0000:03:00.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1] [ 90.862557] tg3 0000:03:00.0: eth0: dma_rwctrl[76180000] dma_mask[64-bit] [ 90.919961] tg3 0000:03:00.0: irq 47 for MSI/MSI-X [ 91.863311] tg3 0000:03:00.0: p3p1: Link is down [ 92.864348] tg3 0000:03:00.0: p3p1: Link is up at 100 Mbps, full duplex [ 92.864352] tg3 0000:03:00.0: p3p1: Flow control is on for TX and on for RX
It has worked on some of the older kernels without the need for the manual rmmod/modprobe step, so it seems to be somewhat timing related. I'm not sure if there is a module load ordering issue, but that doesn't seem to be the case. I can't explain why a later modprobe would work just fine though.
Do you have any thoughts on how to go about debugging/fixing this? I'd be happy to test and provide whatever information you need.
josh
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