static void
cfgset8(uintptr_t p, uint8_t v, void* r)
{
Reg *ro = r;
Pcidev d;
d.tbdf = ro->tbdf;
pcicfgw8(&d, p, v);
}
static void
wpipci(void)
{
Pcidev *pdev;
pdev = nil;
while(pdev = pcimatch(pdev, 0x8086, 0)){
Ctlr *ctlr;
void *mem;
switch(pdev->did){
default:
continue;
case 0x4227:
break;
}
/* Clear device-specific "PCI retry timeout" register (41h). */
if(pcicfgr8(pdev, 0x41) != 0)
pcicfgw8(pdev, 0x41, 0);
pcisetbme(pdev);
pcisetpms(pdev, 0);
ctlr = malloc(sizeof(Ctlr));
if(ctlr == nil) {
print("wpi: unable to alloc Ctlr\n");
continue;
}
ctlr->port = pdev->mem[0].bar & ~0x0F;
mem = vmap(pdev->mem[0].bar & ~0x0F, pdev->mem[0].size);
if(mem == nil) {
print("wpi: can't map %8.8luX\n", pdev->mem[0].bar);
free(ctlr);
continue;
}
ctlr->nic = mem;
ctlr->pdev = pdev;
if(wpihead != nil)
wpitail->link = ctlr;
else
wpihead = ctlr;
wpitail = ctlr;
}
}
static void
i82563pci(void)
{
int port, type, cls;
Pcidev *p;
Ctlr *ctlr;
static int first = 1;
if (first)
first = 0;
else
return;
p = nil;
while(p = pcimatch(p, 0x8086, 0)){
if(p->ccrb != 0x02 || p->ccru != 0)
continue;
//print("i82563pci: did %4.4#x\n", p->did);
switch(p->did){
case 0x1096:
case 0x10ba:
type = i82563;
break;
case 0x1049: /* mm */
case 0x104a: /* dm */
case 0x104d: /* v */
case 0x10bd: /* dm */
type = i82566;
break;
case 0x10cd: /* lf */
type = i82567;
break;
case 0x10a4:
case 0x105e:
type = i82571;
break;
case 0x10b9: /* sic, 82572 */
type = i82572;
break;
case 0x108b: /* e */
case 0x108c: /* e (iamt) */
case 0x109a: /* l */
type = i82573;
break;
case 0x10a7: /* 82575eb */
type = i82575;
break;
default:
continue;
}
port = upamalloc(p->mem[0].bar & ~0x0F, p->mem[0].size, 0);
if(port == 0){
print("%s: can't map %d @ 0x%8.8lux\n", tname[type],
p->mem[0].size, p->mem[0].bar);
continue;
}
if(p->pcr & MemWrInv){
cls = pcicfgr8(p, PciCLS) * 4;
if(cls != CACHELINESZ)
pcicfgw8(p, PciCLS, CACHELINESZ/4);
}
cls = pcicfgr8(p, PciCLS);
switch(cls){
default:
print("%s: unexpected CLS - %d bytes\n",
tname[type], cls*sizeof(long));
break;
case 0x00:
case 0xFF:
/* alphapc 164lx returns 0 */
print("%s: unusable PciCLS: %d, using %d longs\n",
tname[type], cls, CACHELINESZ/sizeof(long));
cls = CACHELINESZ/sizeof(long);
pcicfgw8(p, PciCLS, cls);
break;
case 0x08:
case 0x10:
break;
}
ctlr = malloc(sizeof(Ctlr));
ctlr->port = port;
ctlr->pcidev = p;
ctlr->cls = cls*4;
ctlr->type = type;
ctlr->nic = KADDR(ctlr->port);
if(i82563reset(ctlr)){
free(ctlr);
continue;
}
pcisetbme(p);
if(ctlrhead != nil)
ctlrtail->next = ctlr;
else
ctlrhead = ctlr;
ctlrtail = ctlr;
}
}
