Date: Fri, 23 Jan 1998 17:40:38 -0800 From: Bill Rainey <brainey@cisco.com> To: hardware@FreeBSD.ORG Subject: Intel Pro 100/B Ethernet card - PCI irq assignment Message-ID: <199801240140.RAA18281@brainey-ss20.cisco.com>
next in thread | raw e-mail | index | archive | help
I've installed a EtherExpress Pro 100/B card and the system seems to be
running fine with it but I have a question about the way IRQs are
assigned for PCI devices.
I noticed after I config'd the kernel and installed the card that fxp0
was sharing IRQ 11 with the WinCast/TV and the Matrox Millenium
cards. It this reasonable (a feature of the PCI bus) or should it
really have its own IRQ ? How is IRQ assignment done for PCI cards ?
As I said, it seems to work okay so far.
Thanks,
Bill Rainey
-----------------------------------------------------------------------
FreeBSD 3.0-CURRENT #0: Fri Jan 23 03:36:15 PST 1998
brainey@avatar.cisco.com:/src/current/sys/compile/AVATAR
CPU: Pentium Pro (199.43-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x616 Stepping=6
Features=0xf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV>
real memory = 134217728 (131072K bytes)
avail memory = 127897600 (124900K bytes)
Probing for devices on PCI bus 0:
chip0: <Intel 82371FB PCI to ISA bridge> rev 0x02 on pci0.2.0
> bktr0: <BrookTree 848> rev 0x11 int a irq 11 on pci0.6.0
Hauppauge WinCast/TV, Philips NTSC tuner, dbx stereo.
> fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x02 int a irq 11 on pci0
.10.0
fxp0: Ethernet address 00:a0:c9:8e:ed:19
> vga0: <Matrox MGA 2064W graphics accelerator> rev 0x01 int a irq 11 on pci0.1
2.0
ahc0: <Adaptec 2940 Ultra SCSI host adapter> rev 0x00 int a irq 10 on pci0.14
.0
ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
-----------------------------------------------------------------------
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199801240140.RAA18281>