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List:       linux-kernel
Subject:    Re: Sky2 - problems with VLANs - kernel 2.6.36
From:       David <david () unsolicited ! net>
Date:       2010-12-31 21:42:52
Message-ID: 4D1E4E5C.7030409 () unsolicited ! net
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On 31/12/10 18:13, Stephen Hemminger wrote:
> On Fri, 05 Nov 2010 23:06:14 +0000
> David <david@unsolicited.net> wrote:
> 
> > I've just installed a Lycom dual port gigabit ethernet card, picked up
> > as follows :-
> > 
> > 03:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8062 PCI-E
> > IPMI Gigabit Ethernet Controller (rev 14)
> > Subsystem: Marvell Technology Group Ltd. Device 6222
> > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> > Stepping- SERR+ FastB2B- DisINTx+
> > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> > <TAbort- <MAbort- >SERR- <PERR- INTx-
> > Latency: 0, Cache Line Size: 64 bytes
> > Interrupt: pin A routed to IRQ 41
> > Region 0: Memory at fe8fc000 (64-bit, non-prefetchable) [size=16K]
> > Region 2: I/O ports at c800 [size=256]
> > Expansion ROM at fe8c0000 [disabled] [size=128K]
> > Capabilities: <access denied>
> > Kernel driver in use: sky2
> > Kernel modules: sky2
> > 
> > I'm having a problem with VLANs. Outgoing packets are tagged correctly
> > and devices on the VLAN are responding. Unfortunately all of the
> > response packets stay on the raw device and are not allocated to the VLAN.
> > 
> > I've done some investigation (printks etc.), and have found that neither
> > of the following cases in sky2_status_intr() are being triggered...
> > 
> > case OP_RXVLAN:
> > printk("RXVLAN, length=%u, status=%u\n", length,
> > status);
> > sky2->rx_tag = length;
> > break;
> > 
> > case OP_RXCHKSVLAN:
> > printk("RXCHKSVLAN, length=%u, status=%u\n",
> > length, status);
> > sky2->rx_tag = length;
> > /* fall through */
> > 
> > ... however the status when calling sky2_skb_rx() does have GMR_FS_VLAN
> > set, it's just we haven't been able to find out which VLAN the packet
> > comes from (and sky2->rx_tag is zero). Does anyone have any suggestions
> > as to how I proceed from here? I'm happy to test patches etc.
> Did it work with older kernels? 
Unfortunately I don't know (as this was a new hardware setup). Since it was a while ago and no-one seemed \
to have any ideas, I fixed the problem by changing to an e1000 (which had no further issues). I've still \
got the offending hardware though, so it may be possible to throw some older distros at it to test.

Cheers
David

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