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List:       linux-vlan
Subject:    Re: [VLAN] known good eepro100.c anyone?
From:       Krzysztof Adamski <k () adamski ! org>
Date:       2001-10-16 19:54:52
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You need to set the MTU to 1504 on the vlan interfaces.

K

On Tue, 16 Oct 2001, Doug Monroe wrote:

> Juan Pablo Abuyeres wrote:
> > 
> > this patch should do it:
> > 
> > --- linux-2.4.12/drivers/net/eepro100.c Sun Sep 30 15:26:08 2001
> > +++ linux-2.4.12-patched/drivers/net/eepro100.c Tue Oct 16 15:01:50 2001
> > @@ -505,12 +505,12 @@
> >  static const char i82557_config_cmd[CONFIG_DATA_SIZE] = {
> >   22, 0x08, 0, 0,  0, 0, 0x32, 0x03,  1, /* 1=Use MII  0=Use AUI */
> >   0, 0x2E, 0,  0x60, 0,
> > - 0xf2, 0x48,   0, 0x40, 0xf2, 0x80,   /* 0x40=Force full-duplex */
> > + 0xf2, 0x48,   0, 0x40, 0xfa, 0x80,   /* 0x40=Force full-duplex */
> >   0x3f, 0x05, };
> >  static const char i82558_config_cmd[CONFIG_DATA_SIZE] = {
> >   22, 0x08, 0, 1,  0, 0, 0x22, 0x03,  1, /* 1=Use MII  0=Use AUI */
> >   0, 0x2E, 0,  0x60, 0x08, 0x88,
> > - 0x68, 0, 0x40, 0xf2, 0x84,  /* Disable FC */
> > + 0x68, 0, 0x40, 0xfa, 0x84,  /* Disable FC */
> >   0x31, 0x05, };
> > 
> >  /* PHY media interface chips. */
> 
> many thanks.
> I applied this eepro100.c patch with vlan release 1.14 on linux-2.4.12 but
> pings greater than 1468 bytes fail to all VLAN interfaces while pings of any
> size are ok to untagged interfaces.
> I'm so close I can taste it...anyone have any insight to add or tests I can
> run to diagnose??
> Thanks
> Doug Monroe
> 
> FWIW-
> 
> created vlans using
> # ifconfig eth1 down
> # ifconfig eth1 192.168.1.254 up
> # vconfig add eth1 2
> # ifconfig eth1.2 192.168.2.254 up
> # vconfig add eth1 3
> # ifconfig eth1.3 192.168.3.254 up
> # vconfig add eth1 4
> # ifconfig eth1.4 192.168.4.254 up
> 
> $ ls /proc/net/vlan
> config  eth1.2  eth1.3  eth1.4
> 
> $ mii-tool
> eth0: negotiated 100baseTx-HD, link ok
> eth1: negotiated 100baseTx-FD, link ok
> 
> $ ifconfig -a
> eth1      Link encap:Ethernet  HWaddr 00:02:B3:65:C4:47  
>           inet addr:192.168.1.254  Bcast:192.168.1.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:127230 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:119458 errors:0 dropped:0 overruns:4 carrier:0
>           collisions:0 txqueuelen:100 
>           Interrupt:5 Base address:0x2000 
> 
> eth1.2    Link encap:Ethernet  HWaddr 00:02:B3:65:C4:47  
>           inet addr:192.168.2.254  Bcast:192.168.2.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:12387 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:12150 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0 
> 
> eth1.3    Link encap:Ethernet  HWaddr 00:02:B3:65:C4:47  
>           inet addr:192.168.3.254  Bcast:192.168.3.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0 
> 
> eth1.4    Link encap:Ethernet  HWaddr 00:02:B3:65:C4:47  
>           inet addr:192.168.4.254  Bcast:192.168.4.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
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