"watchdog timeout" a "obsoleted if_watchdog interface"

[Dan Lukes]

Jan Stary napsal/wrote, On 11/08/08 11:36:
> Konecne jsem se dostal k nasledujicimu problemu:
> na mem 7.0-RELEASE-p5 (dmesg dole) mi sitovka vr0
> pri vetsim trafficu rika
> 
> 	vr0: watchdog timeout

Me to dela vge0 na 6.3, vetsi traffic na to ani nepotrebuje a zapnuti 
poolingu situaci zhorsi - nejenze "timeouty" nezmizi, ale v tehle 
konfiguraci se z toho stavu navic nedokaze vzpamatovat.

Jeste jsem to ale neresil, nejdriv se budu venovat tomu, proc nejde 
vypnout hardwarova akcelerace (txcsum/rxcsum), ktera se jim po nejake 
dobe provozu taky podela a pak nektere pakety neprochazeji (protoze jim 
karta spocita blbe checksum).

Nicmene, i kdybych to resil, asi by ti to stejne nepomohlo - pres 
urcitou podobnost v priznacich to nejspis nebude stejny problem.

> 	ifconfig vr0 ... polling
> v nastaveni interfacu. Tim prvni problem skutecne zmizel, tj. sitove
> prodlevy a hlaska o "watchdog timeout" zmizely, nicmene zustava mi tato
> otazka: (nove) dmesg rika o moji vr0 toto (stare dmesg pokracovalo
> sekvenci hlasek "vr0: watchdog timeout"):
> 
> vr0: <VIA VT6102 Rhine II 10/100BaseTX> port 0xd400-0xd4ff mem 0xdffffe00-0xdffffeff irq 23 at device 18.0 on pci0
> vr0: Quirks: 0x0
...
> vr0: using obsoleted if_watchdog interface
> vr0: Ethernet address: 00:0c:76:55:85:56
> vr0: [ITHREAD]
> 
> 1) Co jsou quirks?

V tomto pripade je vyznam "bitiky oznacujici potrebu specialniho chovani 
v konkretni situaci". Ovladac vr0 ve skutecnosti podporuje vic ruznych 
karet, ktere jsou si sice hodne podobne, ale nejsou preci jen uplne 
stejne - nektere maji hardwarove pocitani checksumu, nektere vyzaduji 
aby predavana data byla jen na zarovannych adresach, ...

Tak tyhle bitiky obsahuji informace o tehle "zvlastnich" pozadavcich 
konkretni karty.


> 2) Znamena "obsoleted if_watchdog interface", ze zrovna vr driver
>    pouziva obsoleted if_watchdog interface, zatimco jine drivery
>    pouzivaji if_watchdog intarface, ktery neni obsoleted,
>    anebo to znamena, ze if_watchdog interface jako takovy
>    je obsoleted? Podle /usr/src/sys/net/if.c, ktere rika
> 
> 	if (ifp->if_watchdog != NULL)
> 		if_printf(ifp, "using obsoleted if_watchdog interface\n");
> 
>    bych rekl, ze spis to druhe.

No, ja v tom nevidim velky rozdil - jestli existuje stare interface a 
nove interface a ovladac pouziva stare, pak je skoro jiste stary. A nebo 
je sice novy, ale programator ma "stare" znalosti, coz je z hlediska 
vysledku takrka totez ...

> 3) Jelito skutecne tak, znamena to pro me neco? V krajnim pripade,
>    je snad v nejakem ohledu lepsi pouzivat kartu, ktera (resp: jejiz driver)
>    nepouziva tento obsoleted interface?

Urcite to neco znamena. "Stary" ovladac znamena, ze tu kartu moc lidi 
nepouziva. nebo, ze neco jineho brani "udrzbe" ovladacu. To znamena, ze 
karta je pravdepodobne mene vyzkousena, takze tam s vyssi 
pravdepodobnosti budou ruzne chyby (na ktere se kvuli male pouzivanosti 
dosud neprislo). Nebo prislo, ale protoze neco brani udrzbe ovladace, 
zustavaji neopravene.

Ovladac pro VR je podle vseho dlouhodobe neudrzovany, maximalne se do 
nej dobastli to, co je potrebne, aby fungoval na nove verzi FreeBSD - 
dosud dokonce ani neni presunut v adresarove strukture k ostatnim 
ovladacum sitovek a zustava tam, kde ovladace byly kdysi.

Otazka, jestli to znamena neco konkretne pro tebe ale neni otazka, 
kterou ti zodpovi nekdo jiny. Ted, kdyz's vyresil problem s timeouty - 
funguje ta karta tak, ze s ohledem na to, v jakem stroji je, postacuje 
na to, co se po ni chce ? Pak neznamena.

						Dan



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> FreeBSD 7.0-RELEASE-p5 #0: Sat Nov  8 09:25:28 CET 2008
>     root at hans.stare.cz:/usr/obj/usr/src/sys/HANS
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: AMD Athlon(tm) XP 2500+ (1837.51-MHz 686-class CPU)
>   Origin = "AuthenticAMD"  Id = 0x6a0  Stepping = 0
>   Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
>   AMD Features=0xc0400800<SYSCALL,MMX+,3DNow!+,3DNow!>
> real memory  = 1073676288 (1023 MB)
> avail memory = 1041489920 (993 MB)
> ACPI APIC Table: <AMIINT VIA_K7  >
> ioapic0 <Version 0.3> irqs 0-23 on motherboard
> kbd1 at kbdmux0
> acpi0: <AMIINT VIA_K7> on motherboard
> acpi0: [ITHREAD]
> acpi0: Power Button (fixed)
> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
> cpu0: <ACPI CPU> on acpi0
> acpi_button0: <Power Button> on acpi0
> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
> pci0: <ACPI PCI bus> on pcib0
> agp0: <VIA 8377 (Apollo KT400/KT400A/KT600) host to PCI bridge> on hostb0
> agp0: aperture size is 128M
> pcib1: <PCI-PCI bridge> at device 1.0 on pci0
> pci1: <PCI bus> on pcib1
> vgapci0: <VGA-compatible display> mem 0xde000000-0xdeffffff,0xd8000000-0xdbffffff irq 16 at device 0.0 on pci1
> pcm0: <Creative EMU10K1> port 0xe800-0xe81f irq 17 at device 6.0 on pci0
> pcm0: <TriTech TR28602 AC97 Codec>
> pcm0: [ITHREAD]
> uhci0: <VIA 83C572 USB controller> port 0xdc00-0xdc1f irq 21 at device 16.0 on pci0
> uhci0: [GIANT-LOCKED]
> uhci0: [ITHREAD]
> usb0: <VIA 83C572 USB controller> on uhci0
> usb0: USB revision 1.0
> uhub0: <VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
> uhub0: 2 ports with 2 removable, self powered
> uhci1: <VIA 83C572 USB controller> port 0xe000-0xe01f irq 21 at device 16.1 on pci0
> uhci1: [GIANT-LOCKED]
> uhci1: [ITHREAD]
> usb1: <VIA 83C572 USB controller> on uhci1
> usb1: USB revision 1.0
> uhub1: <VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
> uhub1: 2 ports with 2 removable, self powered
> uhci2: <VIA 83C572 USB controller> port 0xe400-0xe41f irq 21 at device 16.2 on pci0
> uhci2: [GIANT-LOCKED]
> uhci2: [ITHREAD]
> usb2: <VIA 83C572 USB controller> on uhci2
> usb2: USB revision 1.0
> uhub2: <VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2
> uhub2: 2 ports with 2 removable, self powered
> ehci0: <VIA VT6202 USB 2.0 controller> mem 0xdfffff00-0xdfffffff irq 21 at device 16.3 on pci0
> ehci0: [GIANT-LOCKED]
> ehci0: [ITHREAD]
> usb3: EHCI version 1.0
> usb3: companion controllers, 2 ports each: usb0 usb1 usb2
> usb3: <VIA VT6202 USB 2.0 controller> on ehci0
> usb3: USB revision 2.0
> uhub3: <VIA EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb3
> uhub3: 6 ports with 6 removable, self powered
> isab0: <PCI-ISA bridge> at device 17.0 on pci0
> isa0: <ISA bus> on isab0
> atapci0: <VIA 8235 UDMA133 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfc00-0xfc0f at device 17.1 on pci0
> ata0: <ATA channel 0> on atapci0
> ata0: [ITHREAD]
> ata1: <ATA channel 1> on atapci0
> ata1: [ITHREAD]
> pci0: <multimedia, audio> at device 17.5 (no driver attached)
> vr0: <VIA VT6102 Rhine II 10/100BaseTX> port 0xd400-0xd4ff mem 0xdffffe00-0xdffffeff irq 23 at device 18.0 on pci0
> vr0: Quirks: 0x0
> miibus0: <MII bus> on vr0
> ukphy0: <Generic IEEE 802.3u media interface> PHY 1 on miibus0
> ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
> vr0: using obsoleted if_watchdog interface
> vr0: Ethernet address: 00:0c:76:55:85:56
> vr0: [ITHREAD]
> acpi_button1: <Sleep Button> on acpi0
> atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
> atkbd0: <AT Keyboard> irq 1 on atkbdc0
> kbd0 at atkbd0
> atkbd0: [GIANT-LOCKED]
> atkbd0: [ITHREAD]
> psm0: <PS/2 Mouse> irq 12 on atkbdc0
> psm0: [GIANT-LOCKED]
> psm0: [ITHREAD]
> psm0: model NetMouse/NetScroll Optical, device ID 0
> fdc0: <floppy drive controller> port 0x3f2-0x3f3,0x3f4-0x3f5,0x3f7 irq 6 drq 2 on acpi0
> fdc0: [FILTER]
> fd0: <1440-KB 3.5" drive> on fdc0 drive 0
> sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
> sio0: type 16550A
> sio0: [FILTER]
> sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
> sio1: type 16550A
> sio1: [FILTER]
> ppc0: <Parallel port> port 0x378-0x37f,0x778-0x77b irq 7 drq 3 on acpi0
> ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
> ppc0: FIFO with 16/16/9 bytes threshold
> ppbus0: <Parallel port bus> on ppc0
> ppbus0: [ITHREAD]
> lpt0: <Printer> on ppbus0
> lpt0: Interrupt-driven port
> ppc0: [GIANT-LOCKED]
> ppc0: [ITHREAD]
> pmtimer0 on isa0
> sc0: <System console> at flags 0x100 on isa0
> sc0: VGA <16 virtual consoles, flags=0x300>
> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
> Timecounter "TSC" frequency 1837514906 Hz quality 800
> Timecounters tick every 1.000 msec
> ad0: 19092MB <Seagate ST320011A 3.05> at ata0-master UDMA100
> acd0: DMA limited to UDMA33, device found non-ATA66 cable
> acd0: DVDR <LITE-ON DVDRW SOHW-1693S/KS06> at ata0-slave UDMA33
> ad2: 286188MB <Maxtor 6L300R0 BAJ41G20> at ata1-master UDMA133
> ad3: 152626MB <Seagate ST3160023A 8.01> at ata1-slave UDMA100
> acd0: FAILURE - INQUIRY ILLEGAL REQUEST asc=0x24 ascq=0x00 
> acd0: FAILURE - INQUIRY ILLEGAL REQUEST asc=0x24 ascq=0x00 
> cd0 at ata0 bus 0 target 1 lun 0
> cd0: <LITE-ON DVDRW SOHW-1693S KS06> Removable CD-ROM SCSI-0 device 
> cd0: 33.000MB/s transfers
> cd0: cd present [3262504 x 2048 byte records]
> Trying to mount root from ufs:/dev/ad0s1a
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