No kidding, it is scheduled for a RAPE and BURN for a redesign for 2.5.
Until then do not make changes that cause problems with 'class' code ID's.
Cheers,
On Mon, 2 Oct 2000, Jeff Garzik wrote:
> Linus,
>
> Ug. Why do I feel like the IDE "driver" is code layered upon code
> layered upon code, through the ages, with nary a cleanup in between?
>
> My previous patch was a fix, but (brown paper bag time) standard IDE
> devices no longer called chipset init. People either had no IDE, or
> were stuck in legacy mode. This fixes it.
>
> The IDE layer is in serious need of a cleanup though, IMHO...
>
> With this tested patch full functionality should be restored, without
> reverting to the previously-crazy code found in test9-pre7 and before.
>
> Jeff
>
>
>
>
> Index: drivers/ide/ide-pci.c
> ===================================================================
> RCS file: /usr/jgarzik/cvslan/linux_2_3/drivers/ide/ide-pci.c,v
> retrieving revision 1.1.1.9
> diff -u -r1.1.1.9 ide-pci.c
> --- drivers/ide/ide-pci.c 2000/10/02 08:32:44 1.1.1.9
> +++ drivers/ide/ide-pci.c 2000/10/02 18:28:10
> @@ -493,6 +493,7 @@
> byte tmp = 0;
> ide_hwif_t *hwif, *mate = NULL;
> unsigned int class_rev;
> + int pci_class_ide;
>
> #ifdef CONFIG_IDEDMA_AUTO
> autodma = 1;
> @@ -538,7 +539,8 @@
> * Can we trust the reported IRQ?
> */
> pciirq = dev->irq;
> - if ((dev->class & ~(0xff)) != (PCI_CLASS_STORAGE_IDE << 8)) {
> + pci_class_ide = ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE);
> + if (!pci_class_ide) {
> printk("%s: not 100%% native mode: will probe irqs later\n", d->name);
> /*
> * This allows offboard ide-pci cards the enable a BIOS,
> @@ -548,11 +550,17 @@
> */
> pciirq = (d->init_chipset) ? d->init_chipset(dev, d->name) :
>ide_special_settings(dev, d->name);
> } else if (tried_config) {
> - printk("%s: will probe irqs later\n", d->name);
> + printk(KERN_INFO "%s: will probe irqs later\n", d->name);
> pciirq = 0;
> } else if (!pciirq) {
> - printk("%s: bad irq (%d): will probe later\n", d->name, pciirq);
> - pciirq = 0;
> + if (pci_class_ide) {
> + /* this is the normal path for most IDE devices */
> + if (d->init_chipset)
> + pciirq = d->init_chipset(dev, d->name);
> + else
> + printk(KERN_INFO "%s standard IDE storage device
>detected\n", d->name);
> + } else
> + printk(KERN_WARNING "%s: bad irq (0): will probe later\n",
>d->name);
> } else {
> if (d->init_chipset)
> (void) d->init_chipset(dev, d->name);
>
Andre Hedrick
The Linux ATA/IDE guy
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