Intel 82574L Gigabit Ethernet Controller

[Mike Tancsa]

At 06:03 AM 7/7/2010, Shtorm wrote:

> > Yow, 30 vlans, but only em1 is using vlans not em0?
> >
> > Is only em1 having watchdogs? I noticed you appear to
> > have flow control off, maybe turning it on would help.
> >
> > I would like to see the log messages from the watchdogs.
> > Jack
>
>Yes, em0 - plain untagged traffic to border router, em1 - tagged - one
>vlan per 200-300 pppoe clients. Anyway, I saw watchdogs on em0 too,
>there is no logs for it because remote syslog server connected via em0
>and it looses messages during card reset, will enable local logs to get
>some info.

I only have one board that has a pair of these NICs, but I noticed 
that in the BIOS, there is an option to enable or disable the Option 
ROM to do things like WOL, some sort of IPMI and other functions / 
features I am not familiar with and dont use.


|                                                    |ROM for the 
onboard      |
|  Maximize Memory below   [Disabled]                |network 
controllers.     |
|  Memory Mapped I/O abo   [Disabled]                |Warning: If 
[Disabled]   |
|  Onboard Video           [Enabled]                 |is selected, 
NIC2 can    |
|  Dual Monitor Video      [Disabled]                |not be used to 
boot or   |
|  Onboard NIC1 ROM        [Enabled]                 |wake the 
system.         |
|  Onboard NIC2 
ROM        [Enabled]                 |                         |
|  Onboard NIC iSCSI 
ROM   [Disabled]                |                         |
|                                                    | 
          |
|  NIC1 MAC Address        001517C84B98              |><     Select 
Screen     |
|  NIC2 MAC Address        001517C84B99              |^v     Select 
Item       |
|                                                    |+/-    Change 
Value      |

If you have such features, perhaps try disabling them in the BIOS ?

On mine, the two nics dont come up the same... Not sure if their 
capabilities are the same even ?

em2 at pci0:0:25:0:        class=0x020000 card=0x34ec8086 
chip=0x10ef8086 rev=0x05 hdr=0x00
     vendor     = 'Intel Corporation'
     class      = network
     subclass   = ethernet
     cap 01[c8] = powerspec 2  supports D0 D3  current D0
     cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
     cap 13[e0] = PCI Advanced Features: FLR TP


em3 at pci0:3:0:0: class=0x020000 card=0x34ec8086 chip=0x10d38086 
rev=0x00 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Intel 82574L Gigabit Ethernet Controller (82574L)'
     class      = network
     subclass   = ethernet
     cap 01[c8] = powerspec 2  supports D0 D3  current D0
     cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
     cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
     cap 11[a0] = MSI-X supports 5 messages in map 0x1c

em2: <Intel(R) PRO/1000 Network Connection 7.0.5> port 0x3040-0x305f 
mem 0xb1b00000-0xb1b1ffff,0xb1b25000-0xb1b25fff irq 16 at device 25.0 on pci0
em2: Using MSI interrupt
em2: [FILTER]
em2: Ethernet address: 00:15:17:c8:4b:99

em3: <Intel(R) PRO/1000 Network Connection 7.0.5> port 0x1000-0x101f 
mem 0xb1900000-0xb191ffff,0xb1920000-0xb1923fff irq 16 at device 0.0 on pci3
em3: Using MSI interrupt
em3: [FILTER]
em3: Ethernet address: 00:15:17:c8:4b:98


         ---Mike


--------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike at sentex.net
Providing Internet since 1994                    www.sentex.net
Cambridge, Ontario Canada                         www.sentex.net/mike