Messages in this thread | | | Date | Tue, 24 Apr 2001 15:59:50 -0600 | From | Richard Gooch <> | Subject | Re: [PATCH] adding PCI bus information to SCSI layer |
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Matt Domsch writes: > Thanks everyone for your input again. I've made the changes suggested, and > would appreciate this being applied to Linus' and Alan's trees. This is > necessary for solving the "what disk does BIOS think is my boot disk" > problem on IA-64, and I hope to extend it to IA-32 when BIOSs permit. > > Jeff Garzik recommended the IOCTL return pci_dev::slot_name, so now it does, > and this simplifies the ioctl greatly. > Doug Gilbert recommended wrapping things in #ifdef's, so I created a new > CONFIG_SCSI_PCI_INFO define.
As I said to Matt privately, I think adding this kind of ioctl is ugly. We have enough ioctl's as it is. All Matt is trying to do is to access drives via location, so exposing location-based device nodes via devfs is IMNSHO cleaner.
The plan I have (which I hope to get started on soon, now that I'm back from travels), is to change /dev/scsi/host# from a directory into a symbolic link to a directory called: /dev/bus/pci0/slot1/function0. Thus, to access a partition via location, one would use the path: /dev/bus/pci0/slot1/function0/bus0/target1/lun2/part3.
Regards,
Richard.... Permanent: rgooch@atnf.csiro.au Current: rgooch@ras.ucalgary.ca - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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