Re: wm devices don't work under current amd64

[Jarle Greipsland <jarle%uninett.no@localhost>]

Masanobu SAITOH <msaitoh%execsw.org@localhost> writes:
> Hi.
> 
> On 2016/03/07 21:12, Tobias Nygren wrote:
>> On Mon, 7 Mar 2016 20:57:02 +0900
>> Masanobu SAITOH <msaitoh%execsw.org@localhost> wrote:
>>
>>> One of the possibility is that the multicast filter table and broadcast
>>> bit in a register aren't set correctly on ICH9.
>>
>> I'm not sure if this is relevant to the discussion, but I have a wm(4)
>> device (8086:1502) on -current that does not work after boot. It comes
>> to life only after running "tcpdump -n -i wm0" once. I am using vlan(4),
>> but haven't checked if that makes any difference. I usually run the
>> tcpdump command then forget about it until the next reboot.
> 
>  It must be a bug! Could you tell me how you set up network interface include
> vlan? (e.g. part of /etc/rc.conf, /etc/ifconfig.xxx, and the output of "ifconfig -a)

Was this problem ever fixed?  I am experiencing very similar
problems with -current as of yesterday.  My system is a
SuperMicro X7SPA-HF used as a router with a non-vlan interface
towards my ISP (wm1), and a vlan'ed interface for a number of
internal networks (wm0).

An old kernel 7.99.21 from October last year works fine:
[ ... ]
ppb0 at pci0 dev 28 function 0: vendor 8086 product 2940 (rev. 0x02)
ppb0: PCI Express capability version 1 <Root Port of PCI-E Root Complex> x4 @ 2.
5GT/s
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
ppb1 at pci0 dev 28 function 4: vendor 8086 product 2948 (rev. 0x02)
ppb1: PCI Express capability version 1 <Root Port of PCI-E Root Complex> x1 @ 2.
5GT/s
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
wm0 at pci2 dev 0 function 0: Intel i82574L (rev. 0x00)
wm0: for TX interrupting at msix0 vec 0 affinity to 0
wm0: for RX interrupting at msix0 vec 1 affinity to 1
wm0: for RX interrupting at msix0 vec 2 affinity to 2
wm0: for LINK interrupting at msix0 vec 3
wm0: PCI-Express bus
wm0: 2048 words (8 address bits) SPI EEPROM, version 1.9.0, Image Unique ID 0000ffff
wm0: Ethernet address 00:xx:xx:xx:xx:xx
makphy0 at wm0 phy 1: Marvell 88E1149 Gigabit PHY, rev. 1
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
ppb2 at pci0 dev 28 function 5: vendor 8086 product 294a (rev. 0x02)
ppb2: PCI Express capability version 1 <Root Port of PCI-E Root Complex> x1 @ 2.5GT/s
pci3 at ppb2 bus 3
pci3: i/o space, memory space enabled, rd/line, wr/inv ok
wm1 at pci3 dev 0 function 0: Intel i82574L (rev. 0x00)
wm1: for TX interrupting at msix1 vec 0 affinity to 0
wm1: for RX interrupting at msix1 vec 1 affinity to 1
wm1: for RX interrupting at msix1 vec 2 affinity to 2
wm1: for LINK interrupting at msix1 vec 3
wm1: PCI-Express bus
wm1: 512 words (8 address bits) SPI EEPROM, version 1.9.0, Image Unique ID 0000ffff
wm1: Ethernet address 00:yy:yy:yy:yy:yy
makphy1 at wm1 phy 1: Marvell 88E1149 Gigabit PHY, rev. 1
makphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto

With a current kernel from yesterday (7.99.42) however, the vlan
interfaces on wm0 do not work.  The dmesg also looks slightly different
(the interrupt routing seems different):

ppb0 at pci0 dev 28 function 0: vendor 8086 product 2940 (rev. 0x02)
ppb0: PCI Express capability version 1 <Root Port of PCI-E Root Complex> x4 @ 2.
5GT/s
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
ppb1 at pci0 dev 28 function 4: vendor 8086 product 2948 (rev. 0x02)
ppb1: PCI Express capability version 1 <Root Port of PCI-E Root Complex> x1 @ 2.
5GT/s
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
wm0 at pci2 dev 0 function 0: Intel i82574L (rev. 0x00)
wm0: for TX and RX interrupting at msix0 vec 0 affinity to 1
wm0: for TX and RX interrupting at msix0 vec 1 affinity to 2
wm0: for LINK interrupting at msix0 vec 2
wm0: PCI-Express bus
wm0: 2048 words (8 address bits) SPI EEPROM, version 1.9.0, Image Unique ID 0000ffff
wm0: Ethernet address 00:xx:xx:xx:xx:xx
makphy0 at wm0 phy 1: Marvell 88E1149 Gigabit PHY, rev. 1
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
ppb2 at pci0 dev 28 function 5: vendor 8086 product 294a (rev. 0x02)
ppb2: PCI Express capability version 1 <Root Port of PCI-E Root Complex> x1 @ 2.5GT/s
pci3 at ppb2 bus 3
pci3: i/o space, memory space enabled, rd/line, wr/inv ok
wm1 at pci3 dev 0 function 0: Intel i82574L (rev. 0x00)
wm1: for TX and RX interrupting at msix1 vec 0 affinity to 1
wm1: for TX and RX interrupting at msix1 vec 1 affinity to 2
wm1: for LINK interrupting at msix1 vec 2
wm1: PCI-Express bus
wm1: 512 words (8 address bits) SPI EEPROM, version 1.9.0, Image Unique ID 0000ffff
wm1: Ethernet address 00:yy:yy:yy:yy:yy
makphy1 at wm1 phy 1: Marvell 88E1149 Gigabit PHY, rev. 1
makphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto

With this kernel, I have to do a tcpdump of one or two packets on
wm0 until it starts to work, as suggest by tnn@ in his message
from March.

Any idea what might be the problem?
					-jarle