Subject: Re: kern/31303: wm(4) driver doesn't detect/attach to a fiber phy
To: None <kern-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: Dheeraj S <dheeraj@ece.gatech.edu>
List: netbsd-bugs
Date: 10/12/2005 05:47:02
The following reply was made to PR kern/31303; it has been noted by GNATS.

From: Dheeraj S <dheeraj@ece.gatech.edu>
To: Manuel Bouyer <bouyer@antioche.eu.org>
Cc: gnats-bugs@netbsd.org, thorpej@shagadelic.org
Subject: Re: kern/31303: wm(4) driver doesn't detect/attach to a fiber phy
Date: Wed, 12 Oct 2005 01:45:54 +0000

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 Content-Type: text/plain; charset=us-ascii
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 On Mon, Oct 10, 2005 at 06:31:53PM +0200, Manuel Bouyer wrote:
 
 > On Mon, Oct 10, 2005 at 12:28:49PM +0000, Dheeraj S wrote:
 > > > Now it looks like there's a negotiation problem with the other end.
 > > > Are you sure the link is working ?
 > > > 
 > > Yes I am sure since if I plug the same fiber into an adjacent freebsd box with
 > > exactly the same config , it works fine (em driver).
 > 
 > OK, so assuming it's not a hardware problem, it looks like an incompatibility
 > between the remote end and the NetBSD driver.
 > The debug messages would probably help a lot here.
 > 
 
 Hello Manuel,
    I am attaching the dmesg log after i executed the following commands.
 
 # ifconfig wm3 up
 # ifconfig wm0 up
 # dhclient wm0
 
 I also have dmesg logs after each operation too.
 
 truly
 dheeraj
 
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 Content-Type: text/plain; charset=us-ascii
 Content-Disposition: attachment; filename="after_dhclient_wm0.txt"
 
  Warning: Type override - [LEDP] had invalid type (String) for Scope operator, changed to (Scope)
     ACPI-0723: *** Warning: Type override - [GPEN] had invalid type (String) for Scope operator, changed to (Scope)
     ACPI-0723: *** Warning: Type override - [GPST] had invalid type (String) for Scope operator, changed to (Scope)
     ACPI-0723: *** Warning: Type override - [WUES] had invalid type (String) for Scope operator, changed to (Scope)
     ACPI-0723: *** Warning: Type override - [WUSE] had invalid type (String) for Scope operator, changed to (Scope)
     ACPI-0723: *** Warning: Type override - [SBID] had invalid type (String) for Scope operator, changed to (Scope)
     ACPI-0723: *** Warning: Type override - [SWCE] had invalid type (String) for Scope operator, changed to (Scope)
 cpu0 at mainbus0: apid 0 (boot processor)
 cpu0: Intel Xeon (686-class), 3056.97 MHz, id 0xf27
 cpu0: features bfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
 cpu0: features bfebfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX>
 cpu0: features bfebfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
 cpu0: features2 4400<CID,xTPR>
 cpu0: "Intel(R) Xeon(TM) CPU 3.06GHz"
 cpu0: I-cache 12K uOp cache 8-way, D-cache 8 KB 64B/line 4-way
 cpu0: L2 cache 512 KB 64B/line 8-way
 cpu0: ITLB 4K/4M: 64 entries
 cpu0: DTLB 4K/4M: 64 entries
 cpu0: using thermal monitor 1
 cpu0: calibrating local timer
 cpu0: apic clock running at 132 MHz
 cpu0: 16 page colors
 cpu1 at mainbus0: apid 6 (application processor)
 cpu1: starting
 cpu1: Intel Xeon (686-class), 3056.81 MHz, id 0xf27
 cpu1: features bfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
 cpu1: features bfebfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX>
 cpu1: features bfebfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
 cpu1: features2 4400<CID,xTPR>
 cpu1: "Intel(R) Xeon(TM) CPU 3.06GHz"
 cpu1: I-cache 12K uOp cache 8-way, D-cache 8 KB 64B/line 4-way
 cpu1: L2 cache 512 KB 64B/line 8-way
 cpu1: ITLB 4K/4M: 64 entries
 cpu1: DTLB 4K/4M: 64 entries
 cpu1: using thermal monitor 1
 ioapic0 at mainbus0 apid 8 (I/O APIC)
 ioapic0: pa 0xfec00000, version 20, 24 pins
 ioapic1 at mainbus0 apid 9 (I/O APIC)
 ioapic1: pa 0xfec81000, version 20, 24 pins
 ioapic2 at mainbus0 apid 10 (I/O APIC)
 ioapic2: pa 0xfec81400, version 20, 24 pins
 acpi0 at mainbus0
 acpi0: using Intel ACPI CA subsystem version 20050408
 acpi0: X/RSDT: OemId <INTEL ,SWV25   ,00000001>, AslId <MSFT,01000000>
 acpi0: SCI interrupting at int 9
 acpi0: fixed-feature power button present
 ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
 ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
 ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
 ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
 PNP0A03 [PCI Bus] at acpi0 not configured
 PNP0C02 [Plug and Play motherboard register resources] at acpi0 not configured
 PNP0000 [AT Interrupt Controller] at acpi0 not configured
 PNP0200 [AT DMA Controller] at acpi0 not configured
 attimer1 at acpi0 (PNP0100): AT Timer
 attimer1: io 0x40-0x43 irq 0
 PNP0B00 [AT Real-Time Clock] at acpi0 not configured
 pcppi1 at acpi0 (PNP0800)
 pcppi1: io 0x61
 midi0 at pcppi1: PC speaker
 spkr0 at pcppi1
 sysbeep0 at pcppi1
 npx0 at acpi0 (PNP0C04)
 npx0: io 0xf0-0xff irq 13
 npx0: using exception 16
 pckbc0 at acpi0 (PNP0303): kbd port
 pckbc0: io 0x60,0x64 irq 1
 acpiec0 at acpi0 (PNP0C09): ACPI Embedded Controller
 acpiec0: io 0xca6-0xca7
 acpiec0: unable to find csr register resource
 fdc0 at acpi0 (PNP0700)
 fdc0: io 0x3f2-0x3f5,0x3f7 irq 6 drq 2
 fdc0: expected buffer len of 20, got 5
 com0 at acpi0 (PNP0501-1)
 com0: io 0x3f8-0x3ff irq 4
 com0: ns16550a, working fifo
 com1 at acpi0 (PNP0501-2)
 com1: io 0x2f8-0x2ff irq 3
 com1: ns16550a, working fifo
 INT0800 at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 pcppi1: attached to attimer1
 pckbd0 at pckbc0 (kbd slot)
 pckbc0: using irq 1 for kbd slot
 wskbd0 at pckbd0: console keyboard
 pci0 at mainbus0 bus 0: configuration mode 1
 pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
 pchb0 at pci0 dev 0 function 0
 pchb0: Intel E7501 MCH Host (rev. 0x01)
 Intel E7500 MCH DRAM Controller (undefined subclass 0x00, revision 0x01) at pci0 dev 0 function 1 not configured
 ppb0 at pci0 dev 3 function 0: Intel E7500 MCH HI_C vppb 1 (rev. 0x01)
 pci1 at ppb0 bus 2
 pci1: i/o space, memory space enabled
 Intel 82870P2 P64H2 IOxAPIC (interrupt system, interface 0x20, revision 0x04) at pci1 dev 28 function 0 not configured
 ppb1 at pci1 dev 29 function 0: Intel 82870P2 P64H2 PCI-PCI Bridge (rev. 0x04)
 pci2 at ppb1 bus 4
 pci2: memory space enabled
 icp0 at pci2 dev 8 function 0: Intel Storage RAID controller
 icp0: interrupting at ioapic2 pin 0 (irq 9)
 icp0: model <SRCZCR>, firmware <Firmware>, 2 channel(s), 32MB memory
 icpsp0 at icp0 unit 100: physical SCSI channel 0
 scsibus0 at icpsp0: 16 targets, 8 luns per target
 icpsp1 at icp0 unit 101: physical SCSI channel 1
 scsibus1 at icpsp1: 16 targets, 8 luns per target
 ld0 at icp0 unit 0: <PD_B000>, type: JBOD, status: optimal
 ld0: 34696 MB, 8811 cyl, 128 head, 63 sec, 512 bytes/sect x 71058031 sectors
 ld1 at icp0 unit 1: <PD_B001>, type: JBOD, status: optimal
 ld1: 341 GB, 44601 cyl, 255 head, 63 sec, 512 bytes/sect x 716530688 sectors
 Intel 82870P2 P64H2 IOxAPIC (interrupt system, interface 0x20, revision 0x04) at pci1 dev 30 function 0 not configured
 ppb2 at pci1 dev 31 function 0: Intel 82870P2 P64H2 PCI-PCI Bridge (rev. 0x04)
 pci3 at ppb2 bus 3
 pci3: i/o space, memory space enabled
 wm0 at pci3 dev 7 function 0: Intel i82546EB 1000BASE-T Ethernet, rev. 1
 wm0: interrupting at ioapic1 pin 6 (irq 9)
 wm0: 64-bit 33MHz PCI bus
 SDR  wm0:  33 30 
 wm0: 256 word (8 address bits) MicroWire EEPROM
 wm0: Ethernet address 00:07:e9:05:86:44
 makphy0 at wm0 phy 1: Marvell 88E1011 Gigabit PHY, rev. 3
 makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
 wm1 at pci3 dev 7 function 1: Intel i82546EB 1000BASE-T Ethernet, rev. 1
 wm1: interrupting at ioapic1 pin 7 (irq 9)
 wm1: 64-bit 33MHz PCI bus
 SDR  wm1:  33 30 
 wm1: 256 word (8 address bits) MicroWire EEPROM
 wm1: Ethernet address 00:07:e9:05:86:45
 makphy1 at wm1 phy 1: Marvell 88E1011 Gigabit PHY, rev. 3
 makphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
 wm2 at pci3 dev 8 function 0: Intel i82542 1000BASE-X Ethernet, rev. 3
 wm2: interrupting at ioapic1 pin 0 (irq 9)
 SDR  wm2:  33 0 
 wm2: 64 word (6 address bits) MicroWire EEPROM
 wm2: Ethernet address 00:d0:b7:45:7b:34
 wm2: 1000baseSX, 1000baseSX-FDX, auto
 wm3 at pci3 dev 9 function 0: Intel i82542 1000BASE-X Ethernet, rev. 3
 wm3: interrupting at ioapic1 pin 3 (irq 9)
 SDR  wm3:  33 0 
 wm3: 64 word (6 address bits) MicroWire EEPROM
 wm3: Ethernet address 00:d0:b7:45:7c:35
 wm3: 1000baseSX, 1000baseSX-FDX, auto
 wm4 at pci3 dev 10 function 0: Intel i82542 1000BASE-X Ethernet, rev. 3
 wm4: interrupting at ioapic1 pin 4 (irq 9)
 SDR  wm4:  33 0 
 wm4: 64 word (6 address bits) MicroWire EEPROM
 wm4: Ethernet address 00:d0:b7:45:7c:64
 wm4: 1000baseSX, 1000baseSX-FDX, auto
 Intel E7500 MCH HI_C vppb 2 (undefined subclass 0x00, revision 0x01) at pci0 dev 3 function 1 not configured
 uhci0 at pci0 dev 29 function 0: Intel 82801CA USB Controller (rev. 0x02)
 uhci0: interrupting at ioapic0 pin 16 (irq 9)
 usb0 at uhci0: USB revision 1.0
 uhub0 at usb0
 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub0: 2 ports with 2 removable, self powered
 uhci1 at pci0 dev 29 function 1: Intel 82801CA USB Controller (rev. 0x02)
 uhci1: interrupting at ioapic0 pin 19 (irq 10)
 usb1 at uhci1: USB revision 1.0
 uhub1 at usb1
 uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub1: 2 ports with 2 removable, self powered
 ppb3 at pci0 dev 30 function 0: Intel 82801BA Hub-PCI Bridge (rev. 0x42)
 pci4 at ppb3 bus 1
 pci4: i/o space, memory space enabled
 vga0 at pci4 dev 12 function 0: ATI Technologies Rage XL (rev. 0x27)
 wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation), using wskbd0
 wsmux1: connecting to wsdisplay0
 pcib0 at pci0 dev 31 function 0
 pcib0: Intel 82801CA LPC Interface (rev. 0x02)
 piixide0 at pci0 dev 31 function 1
 piixide0: Intel 82801CA IDE Controller (ICH3) (rev. 0x02)
 piixide0: bus-master DMA support present
 piixide0: primary channel configured to compatibility mode
 piixide0: primary channel interrupting at ioapic0 pin 14 (irq 14)
 atabus0 at piixide0 channel 0
 piixide0: secondary channel configured to compatibility mode
 piixide0: secondary channel interrupting at ioapic0 pin 15 (irq 15)
 atabus1 at piixide0 channel 1
 Intel 82801CA SMBus Controller (SMBus serial bus, revision 0x02) at pci0 dev 31 function 3 not configured
 isa0 at pcib0
 isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
 isapnp0: no ISA Plug 'n Play devices found
 ioapic0: enabling
 ioapic1: enabling
 ioapic2: enabling
 fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
 atapibus0 at atabus1: 2 targets
 cd0 at atapibus0 drive 0: <SAMSUNG CD-ROM SN-124, , N101> cdrom removable
 cd0: 32-bit data port
 cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
 cd0(piixide0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA)
 ses0 at scsibus1 target 6 lun 0: <ESG-SHV, SCA HSBP M16, 0.05> processor fixed
 ses0: SAF-TE Compliant Device
 boot device: ld0
 root on ld0a dumps on ld0b
 root file system type: ffs
 cpu1: CPU 6 running
 wsdisplay0: screen 1 added (80x25, vt100 emulation)
 wsdisplay0: screen 2 added (80x25, vt100 emulation)
 wsdisplay0: screen 3 added (80x25, vt100 emulation)
 wsdisplay0: screen 4 added (80x25, vt100 emulation)
 wm3: LINK: set media -> link down
 wm3: TX: have packet to transmit: 0xc4ce3f00
 wm3: TX: packet has 3 (3) DMA segments
 wm3: TX: desc 0: low 0xecfe4fca, len 0x0036
 wm3: TX: desc 1: low 0xecfe4d20, len 0x0008
 wm3: TX: desc 2: low 0xecfe4e20, len 0x0018
 wm3: TX: desc 2: cmdlen 0x8b000018
 wm3: TX: TDT -> 3
 wm3: TX: finished transmitting packet, job 0
 wm3: TX: have packet to transmit: 0xc4ce3c00
 wm3: TX: packet has 3 (3) DMA segments
 wm3: TX: desc 3: low 0xecfe4cca, len 0x0036
 wm3: TX: desc 4: low 0xecfe4a20, len 0x0008
 wm3: TX: desc 5: low 0xecfe4b20, len 0x0018
 wm3: TX: desc 5: cmdlen 0x8b000018
 wm3: TX: TDT -> 6
 wm3: TX: finished transmitting packet, job 1
 wm3: RX: got Rx intr 0x00000010
 wm3: RX: checking descriptor 0
 wm3: RX: rxptr -> 0
 wm3: TX: got TXDW interrupt
 wm3: TX: checking job 0
 wm3: TX: job 0 done: descs 0..2
 wm3: TX: checking job 1
 wm3: TX: job 1 done: descs 3..5
 wm3: TX: txsdirty -> 2
 wm3: RX: checking descriptor 0
 wm3: RX: rxptr -> 0
 wm3: TX: got TXDW interrupt
 wm3: TX: txsdirty -> 2
 wm3: LINK: set media -> link down
 wm3: RX: got Rx intr 0x00000010
 wm3: RX: checking descriptor 0
 wm3: RX: rxptr -> 0
 wm3: TX: txsdirty -> 0
 wm3: TX: have packet to transmit: 0xc4ce3b00
 wm3: TX: packet has 1 (1) DMA segments
 wm3: TX: desc 0: low 0xecfe4b3a, len 0x004e
 wm3: TX: desc 0: cmdlen 0x8b00004e
 wm3: TX: TDT -> 1
 wm3: TX: finished transmitting packet, job 0
 wm3: RX: checking descriptor 0
 wm3: RX: rxptr -> 0
 wm3: TX: got TXDW interrupt
 wm3: TX: checking job 0
 wm3: TX: job 0 done: descs 0..0
 wm3: TX: txsdirty -> 1
 wm3: TX: have packet to transmit: 0xc4ce3b00
 wm3: TX: packet has 3 (3) DMA segments
 wm3: TX: desc 1: low 0xecfe4bca, len 0x0036
 wm3: TX: desc 2: low 0xecfe4c20, len 0x0008
 wm3: TX: desc 3: low 0xecfe4a20, len 0x0018
 wm3: TX: desc 3: cmdlen 0x8b000018
 wm3: TX: TDT -> 4
 wm3: TX: finished transmitting packet, job 1
 wm3: RX: checking descriptor 0
 wm3: RX: rxptr -> 0
 wm3: TX: got TXDW interrupt
 wm3: TX: checking job 1
 wm3: TX: job 1 done: descs 1..3
 wm3: TX: txsdirty -> 2
 wm3: TX: have packet to transmit: 0xc4ce3a00
 wm3: TX: packet has 3 (3) DMA segments
 wm3: TX: desc 4: low 0xecfe4aca, len 0x0036
 wm3: TX: desc 5: low 0xecfe4b20, len 0x0008
 wm3: TX: desc 6: low 0xecfe4c20, len 0x0018
 wm3: TX: desc 6: cmdlen 0x8b000018
 wm3: TX: TDT -> 7
 wm3: TX: finished transmitting packet, job 2
 wm3: RX: checking descriptor 0
 wm3: RX: rxptr -> 0
 wm3: TX: got TXDW interrupt
 wm3: TX: checking job 2
 wm3: TX: job 2 done: descs 4..6
 wm3: TX: txsdirty -> 3
 wm0: LINK: statchg: HDX
 wm0: TX: have packet to transmit: 0xc4cf3f00
 wm0: TX: packet has 3 (3) DMA segments
 wm0: TX: desc 0: low 0xeced5fca, len 0x0036
 wm0: TX: desc 1: low 0xeced5d20, len 0x0008
 wm0: TX: desc 2: low 0xeced5e20, len 0x0018
 wm0: TX: desc 2: cmdlen 0x8b000018
 wm0: TX: TDT -> 3
 wm0: TX: finished transmitting packet, job 0
 wm0: TX: have packet to transmit: 0xc4cf3c00
 wm0: TX: packet has 3 (3) DMA segments
 wm0: TX: desc 3: low 0xeced5cca, len 0x0036
 wm0: TX: desc 4: low 0xeced5a20, len 0x0008
 wm0: TX: desc 5: low 0xeced5b20, len 0x0018
 wm0: TX: desc 5: cmdlen 0x8b000018
 wm0: TX: TDT -> 6
 wm0: TX: finished transmitting packet, job 1
 wm0: RX: checking descriptor 0
 wm0: RX: rxptr -> 0
 wm0: TX: got TXDW interrupt
 wm0: TX: checking job 0
 wm0: TX: job 0 done: descs 0..2
 wm0: TX: checking job 1
 wm0: TX: job 1 done: descs 3..5
 wm0: TX: txsdirty -> 2
 wm0: LINK: LSC -> mii_tick
 wm0: LINK: statchg: HDX
 wm0: RX: checking descriptor 0
 wm0: RX: rxptr -> 0
 wm0: TX: txsdirty -> 0
 wm0: LINK: LSC -> mii_tick
 wm0: TX: have packet to transmit: 0xc4cf3b00
 wm0: TX: packet has 1 (1) DMA segments
 wm0: TX: desc 0: low 0xeced5b3a, len 0x004e
 wm0: TX: desc 0: cmdlen 0x8b00004e
 wm0: TX: TDT -> 1
 wm0: TX: finished transmitting packet, job 0
 wm0: RX: checking descriptor 0
 wm0: RX: rxptr -> 0
 wm0: TX: got TXDW interrupt
 wm0: TX: checking job 0
 wm0: TX: job 0 done: descs 0..0
 wm0: TX: txsdirty -> 1
 wm0: RX: checking descriptor 0
 wm0: RX: rxptr -> 0
 wm0: TX: txsdirty -> 1
 wm0: LINK: LSC -> mii_tick
 wm0: LINK: statchg: FDX
 wm0: TX: have packet to transmit: 0xc4cf3b00
 wm0: TX: packet has 3 (3) DMA segments
 wm0: TX: desc 1: low 0xeced5bca, len 0x0036
 wm0: TX: desc 2: low 0xeced5c20, len 0x0008
 wm0: TX: desc 3: low 0xeced5a20, len 0x0018
 wm0: TX: desc 3: cmdlen 0x8b000018
 wm0: TX: TDT -> 4
 wm0: TX: finished transmitting packet, job 1
 wm0: TX: have packet to transmit: 0xc4cf3e00
 wm0: TX: packet has 3 (3) DMA segments
 wm0: TX: desc 4: low 0xeced5eca, len 0x0036
 wm0: TX: desc 5: low 0xeced5f20, len 0x0008
 wm0: TX: desc 6: low 0xeced5d20, len 0x0018
 wm0: TX: desc 6: cmdlen 0x8b000018
 wm0: TX: TDT -> 7
 wm0: TX: finished transmitting packet, job 2
 wm0: RX: checking descriptor 0
 wm0: RX: rxptr -> 0
 wm0: TX: got TXDW interrupt
 wm0: TX: checking job 1
 wm0: TX: job 1 done: descs 1..3
 wm0: TX: checking job 2
 wm0: TX: job 2 done: descs 4..6
 wm0: TX: txsdirty -> 3
 wm0: RX: got Rx intr 0x00000080
 wm0: RX: checking descriptor 0
 wm0: RX: buffer at 0xcdeff800 len 64
 wm0: RX: have entire packet, len -> 60
 wm0: RX: checking descriptor 1
 wm0: RX: rxptr -> 1
 wm0: TX: txsdirty -> 3
 wm0: RX: got Rx intr 0x00000080
 wm0: RX: checking descriptor 1
 wm0: RX: buffer at 0xcdeff000 len 346
 wm0: RX: have entire packet, len -> 342
 wm0: RX: checking descriptor 2
 wm0: RX: rxptr -> 2
 wm0: TX: txsdirty -> 3
 wm0: LINK: statchg: HDX
 wm0: RX: checking descriptor 0
 wm0: RX: rxptr -> 0
 wm0: TX: txsdirty -> 0
 wm0: LINK: LSC -> mii_tick
 wm0: RX: checking descriptor 0
 wm0: RX: rxptr -> 0
 wm0: TX: txsdirty -> 0
 wm0: LINK: LSC -> mii_tick
 wm0: LINK: statchg: FDX
 wm0: TX: have packet to transmit: 0xc4cf3f00
 wm0: TX: packet has 1 (1) DMA segments
 wm0: TX: desc 0: low 0xececc002, len 0x0156
 wm0: TX: desc 0: cmdlen 0x8b000156
 wm0: TX: TDT -> 1
 wm0: TX: finished transmitting packet, job 0
 wm0: RX: checking descriptor 0
 wm0: RX: rxptr -> 0
 wm0: TX: got TXDW interrupt
 wm0: TX: checking job 0
 wm0: TX: job 0 done: descs 0..0
 wm0: TX: txsdirty -> 1
 wm0: RX: got Rx intr 0x00000080
 wm0: RX: checking descriptor 0
 wm0: RX: buffer at 0xcdf82800 len 377
 wm0: RX: have entire packet, len -> 373
 wm0: RX: checking descriptor 1
 wm0: RX: rxptr -> 1
 wm0: TX: txsdirty -> 1
 wm0: TX: have packet to transmit: 0xc4cf3a00
 wm0: TX: packet has 1 (1) DMA segments
 wm0: TX: desc 1: low 0xeced5ad6, len 0x002a
 wm0: TX: desc 1: cmdlen 0x8b00002a
 wm0: TX: TDT -> 2
 wm0: TX: finished transmitting packet, job 1
 wm0: RX: checking descriptor 1
 wm0: RX: rxptr -> 1
 wm0: TX: got TXDW interrupt
 wm0: TX: checking job 1
 wm0: TX: job 1 done: descs 1..1
 wm0: TX: txsdirty -> 2
 wm0: RX: got Rx intr 0x00000080
 wm0: RX: checking descriptor 1
 wm0: RX: buffer at 0xcdeff800 len 64
 wm0: RX: have entire packet, len -> 60
 wm0: RX: checking descriptor 2
 wm0: RX: rxptr -> 2
 wm0: TX: txsdirty -> 2
 
 --sm4nu43k4a2Rpi4c--