From: Thor Lancelot Simon <tls@rek.tjls.com>
Subject: Re: iop0: unable to retrieve HRT
Date: Wed, 1 Feb 2006 13:08:24 -0500
Message-ID: <20060201180824.GA15739@panix.com>

tls> On Wed, Feb 01, 2006 at 05:01:36PM +0900, Kosaki Kotaro wrote:
tls> > 
tls> >  I also have a a Dell Poweredge 1400 with Dell PERC 2/DC 
tls> >  It is a Linux box.
tls> >  I have tried to install NetBSD-current on it whithout success.
tls> > 
tls> >  So  tested  a strange trick . ( whith success? )
tls> 
tls> Your attached patch is wrong.  

Yes I agree .

 tls>Instead of breaking the I2O code, why
 tls> don't you just switch the AMI RAID controller out of I2O mode?  On

tls> every one I have seen, it is a simple BIOS setting.

  I don't know who to do this.

tls> If it's impossible to switch it out of I2O mode, then you should not
tls> just ifdef out code necessary for other devices to work; you should
tls> add specific tests for it to the iop and amr drivers.
tls> 

Following code works for me. But I don't think they are  good .

----------------------------
amr.c
--------------------
static int
amr_match(struct device *parent, struct cfdata *match, void *aux)
{
        struct pci_attach_args *pa;
        pcireg_t s;
        int i;
        u_int product, vendor;

 
        pa = (struct pci_attach_args *)aux;
        
        /*
         * Don't match the device if it's operating in I2O mode.  In this
         * case it should be handled by the `iop' driver.
         */

        if (PCI_CLASS(pa->pa_class) == PCI_CLASS_I2O){
 
        vendor = PCI_VENDOR(pa->pa_id);
        product = PCI_PRODUCT(pa->pa_id);
        
        if (vendor == PCI_VENDOR_INTEL && product == PCI_PRODUCT_INTEL_80960_RP)
                s = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
        
        if (vendor == PCI_VENDOR_INTEL && product == PCI_PRODUCT_INTEL_80960_RP
                      && PCI_VENDOR(s) == PCI_VENDOR_DELL && PCI_PRODUCT(s)==0x467)
                        ; 
        else
                return (0);
        }
     

----------------------------------------------
iop_pci.c

---------------------------------------------
static int
iop_pci_match(struct device *parent, struct cfdata *match, void *aux)
{
        struct pci_attach_args *pa;
        u_int product, vendor;
        pcireg_t reg;

        pa = aux;

        vendor = PCI_VENDOR(pa->pa_id);
        product = PCI_PRODUCT(pa->pa_id);

        if (vendor == PCI_VENDOR_INTEL && product == PCI_PRODUCT_INTEL_80960_RP) {
                reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
                printf("PCI_VENDOR  %x PCI_PRODUCT  %x PCI_VENDOR_subsys %x PCI_PRODUCT_subsys %x \n"
                        ,vendor,product,PCI_VENDOR(reg),PCI_PRODUCT(reg));
                if (PCI_VENDOR(reg) == PCI_VENDOR_DELL && PCI_PRODUCT(reg)==0x467)
                        return (0);
        }
-------------------------------------------------------------------

Thank you for your kind advice. I expect more systematic and better solution.

Kosaki