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Date:	Wed, 8 Apr 2009 01:25:59 -0500
From:	Robin Holt <holt@....com>
To:	Michael Chan <mchan@...adcom.com>
Cc:	'Robin Holt' <holt@....com>,
	Matthew Carlson <mcarlson@...adcom.com>,
	"David S. Miller" <davem@...emloft.net>,
	Benjamin Li <benli@...adcom.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Linux 2.6.30-rc1

On Tue, Apr 07, 2009 at 10:54:33PM -0700, Michael Chan wrote:
> Robin Holt wrote:
> 
> > Booting an ia64 box with a tg3 adapter results in no network.
> >  If I look
> > at the MAC address of the adapter, it has changed radically from the
> > original MAC.  The original MAC continues to be reported by EFI and
> > booting an old kernel gets the correct MAC.
> >
> > Good MAC:     08:00:69:13:E6:3C
> > Bad MAC:      00:00:3C:E6:13:69 (recreated from memory)
> 
> Looks like endian swapped.  Can you provide the entire tg3 signon
> string?  Please also dump the beginning part of the nvram:
> 
> ethtool -e eth0 length 0x90

>From a good boot (2.6.27):
tg3.c:v3.94 (August 14, 2008)
tg3 0006:00:01.0: PCI INT A -> GSI 65 (level, low) -> IRQ 65
eth0: Tigon3 [partno(9210292) rev 2003 PHY(5704)] (PCIX:133MHz:64-bit) 10/100/1000Base-T Ethernet 00:e0:ed:08:6c:18
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] WireSpeed[1] TSOcap[1]
eth0: dma_rwctrl[769f4000] dma_mask[64-bit] tg3 0006:00:01.1: PCI INT B -> GSI 66 (level, low) -> IRQ 66
eth1: Tigon3 [partno(9210292) rev 2003 PHY(5704)] (PCIX:133MHz:64-bit) 10/100/1000Base-T Ethernet 00:e0:ed:08:6c:19
eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] WireSpeed[1] TSOcap[1]
eth1: dma_rwctrl[769f4000] dma_mask[64-bit]
tg3 0001:00:04.0: PCI INT A -> GSI 62 (level, low) -> IRQ 62
eth2: Tigon3 [partno(030-1771-000) rev 0105 PHY(5701)] (PCI:66MHz:64-bit) 10/100/1000Base-T Ethernet 08:00:69:13:e6:3c
eth2: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] WireSpeed[1] TSOcap[0]

ethtool -e eth2 length 0x90
Address   	Data
----------	----
0x00000000	0x66
0x00000001	0x99
0x00000002	0x55
0x00000003	0xaa
0x00000004	0x08
0x00000005	0x00
0x00000006	0x00
0x00000007	0x00
0x00000008	0x00
0x00000009	0x00
0x0000000a	0x02
0x0000000b	0xa5
0x0000000c	0x00
0x0000000d	0x00
0x0000000e	0x02
0x0000000f	0x00
0x00000010	0x08
0x00000011	0xdf
0x00000012	0x2a
0x00000013	0xb1
0x00000014	0x00
0x00000015	0x01
0x00000016	0x00
0x00000017	0x00
0x00000018	0x00
0x00000019	0x00
0x0000001a	0x3c
0x0000001b	0x00
0x0000001c	0x00
0x0000001d	0x00
0x0000001e	0x10
0x0000001f	0x00
0x00000020	0x00
0x00000021	0x00
0x00000022	0x00
0x00000023	0x00
0x00000024	0x00
0x00000025	0x00
0x00000026	0x00
0x00000027	0x00
0x00000028	0x00
0x00000029	0x00
0x0000002a	0x00
0x0000002b	0x00
0x0000002c	0x00
0x0000002d	0x00
0x0000002e	0x00
0x0000002f	0x00
0x00000030	0x00
0x00000031	0x00
0x00000032	0x00
0x00000033	0x00
0x00000034	0x00
0x00000035	0x00
0x00000036	0x00
0x00000037	0x00
0x00000038	0x00
0x00000039	0x00
0x0000003a	0x00
0x0000003b	0x00
0x0000003c	0x00
0x0000003d	0x00
0x0000003e	0x00
0x0000003f	0x00
0x00000040	0x00
0x00000041	0x00
0x00000042	0x00
0x00000043	0x00
0x00000044	0x00
0x00000045	0x00
0x00000046	0x00
0x00000047	0x00
0x00000048	0x00
0x00000049	0x00
0x0000004a	0x00
0x0000004b	0x00
0x0000004c	0x00
0x0000004d	0x00
0x0000004e	0x00
0x0000004f	0x00
0x00000050	0x00
0x00000051	0x00
0x00000052	0x00
0x00000053	0x00
0x00000054	0x00
0x00000055	0x00
0x00000056	0x00
0x00000057	0x00
0x00000058	0x00
0x00000059	0x00
0x0000005a	0x00
0x0000005b	0x00
0x0000005c	0x00
0x0000005d	0x00
0x0000005e	0x00
0x0000005f	0x00
0x00000060	0x00
0x00000061	0x00
0x00000062	0x00
0x00000063	0x00
0x00000064	0x00
0x00000065	0x00
0x00000066	0x00
0x00000067	0x00
0x00000068	0x00
0x00000069	0x00
0x0000006a	0x00
0x0000006b	0x00
0x0000006c	0x00
0x0000006d	0x00
0x0000006e	0x00
0x0000006f	0x00
0x00000070	0x00
0x00000071	0x00
0x00000072	0x00
0x00000073	0x00
0x00000074	0x43
0x00000075	0x00
0x00000076	0x00
0x00000077	0x8c
0x00000078	0x00
0x00000079	0x00
0x0000007a	0x00
0x0000007b	0x01
0x0000007c	0x00
0x0000007d	0x00
0x0000007e	0x08
0x0000007f	0x00
0x00000080	0x69
0x00000081	0x13
0x00000082	0xe6
0x00000083	0x3c
0x00000084	0x33
0x00000085	0x43
0x00000086	0x39
0x00000087	0x39
0x00000088	0x36
0x00000089	0x42
0x0000008a	0x2d
0x0000008b	0x54
0x0000008c	0x00
0x0000008d	0x00
0x0000008e	0x00
0x0000008f	0x00


>From bad boot (v2.6.30-rc1):
tg3.c:v3.98 (February 25, 2009)
tg3 0006:00:01.0: PCI INT A -> GSI 65 (level, low) -> IRQ 65
tg3 0006:00:01.0: PME# disabled
eth0: Tigon3 [partno(9210292) rev 2003] (PCIX:133MHz:64-bit) MAC address 00:e0:ed:08:6c:18
eth0: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
eth0: dma_rwctrl[769f4000] dma_mask[64-bit]
tg3 0006:00:01.1: PCI INT B -> GSI 66 (level, low) -> IRQ 66
tg3 0006:00:01.1: PME# disabled
eth1: Tigon3 [partno(9210292) rev 2003] (PCIX:133MHz:64-bit) MAC address 00:e0:ed:08:6c:19
eth1: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
eth1: dma_rwctrl[769f4000] dma_mask[64-bit]
tg3 0001:00:04.0: PCI INT A -> GSI 62 (level, low) -> IRQ 62
tg3 0001:00:04.0: PME# disabled
eth2: Tigon3 [partno(030-1771-000) rev 0105] (PCI:66MHz:64-bit) MAC address 00:00:3c:e6:13:69
eth2: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth2: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
eth2: dma_rwctrl[76ff3f0f] dma_mask[64-bit]

ethtool -e eth2 length 0x90
Address   	Data
----------	----
0x00000000	0x66
0x00000001	0x99
0x00000002	0x55
0x00000003	0xaa
0x00000004	0x08
0x00000005	0x00
0x00000006	0x30
0x00000007	0x00
0x00000008	0x00
0x00000009	0x00
0x0000000a	0x03
0x0000000b	0x15
0x0000000c	0x00
0x0000000d	0x00
0x0000000e	0x02
0x0000000f	0xf8
0x00000010	0xaf
0x00000011	0xfc
0x00000012	0x24
0x00000013	0xb1
0x00000014	0x00
0x00000015	0x01
0x00000016	0x00
0x00000017	0x00
0x00000018	0x00
0x00000019	0x00
0x0000001a	0x3d
0x0000001b	0xaa
0x0000001c	0x00
0x0000001d	0x00
0x0000001e	0x1f
0x0000001f	0xb0
0x00000020	0x00
0x00000021	0x00
0x00000022	0x00
0x00000023	0x00
0x00000024	0x00
0x00000025	0x00
0x00000026	0x00
0x00000027	0x00
0x00000028	0x00
0x00000029	0x00
0x0000002a	0x00
0x0000002b	0x00
0x0000002c	0x00
0x0000002d	0x00
0x0000002e	0x00
0x0000002f	0x00
0x00000030	0x00
0x00000031	0x00
0x00000032	0x00
0x00000033	0x00
0x00000034	0x00
0x00000035	0x00
0x00000036	0x00
0x00000037	0x00
0x00000038	0x00
0x00000039	0x00
0x0000003a	0x00
0x0000003b	0x00
0x0000003c	0x00
0x0000003d	0x00
0x0000003e	0x00
0x0000003f	0x00
0x00000040	0x00
0x00000041	0x00
0x00000042	0x00
0x00000043	0x00
0x00000044	0x00
0x00000045	0x00
0x00000046	0x00
0x00000047	0x00
0x00000048	0x00
0x00000049	0x00
0x0000004a	0x00
0x0000004b	0x00
0x0000004c	0x00
0x0000004d	0x00
0x0000004e	0x00
0x0000004f	0x00
0x00000050	0x00
0x00000051	0x00
0x00000052	0x00
0x00000053	0x00
0x00000054	0x00
0x00000055	0x00
0x00000056	0x00
0x00000057	0x00
0x00000058	0x00
0x00000059	0x00
0x0000005a	0x00
0x0000005b	0x00
0x0000005c	0x00
0x0000005d	0x00
0x0000005e	0x00
0x0000005f	0x00
0x00000060	0x00
0x00000061	0x00
0x00000062	0x00
0x00000063	0x00
0x00000064	0x00
0x00000065	0x00
0x00000066	0x00
0x00000067	0x00
0x00000068	0x00
0x00000069	0x00
0x0000006a	0x00
0x0000006b	0x00
0x0000006c	0x00
0x0000006d	0x00
0x0000006e	0x00
0x0000006f	0x00
0x00000070	0x00
0x00000071	0x00
0x00000072	0x00
0x00000073	0x00
0x00000074	0x43
0x00000075	0x00
0x00000076	0x00
0x00000077	0x8c
0x00000078	0x00
0x00000079	0x20
0x0000007a	0x61
0x0000007b	0x10
0x0000007c	0x00
0x0000007d	0x00
0x0000007e	0x00
0x0000007f	0xe0
0x00000080	0xed
0x00000081	0x08
0x00000082	0x6c
0x00000083	0x18
0x00000084	0x39
0x00000085	0x32
0x00000086	0x31
0x00000087	0x30
0x00000088	0x32
0x00000089	0x39
0x0000008a	0x32
0x0000008b	0x00
0x0000008c	0x00
0x0000008d	0x00
0x0000008e	0x00
0x0000008f	0x00


> > If I set the MAC using ifconfig, then everything works normally.
> >
> 
> The bad MAC address that has been swapped is also a valid MAC address
> and should still work though.

Our network dhcp servers on this test network only hand out IPs to known
MACs so we detect situations like this.

Robin
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