R8169 driver missing init PCI IO memory

[macpacheco]

net_r8169_init:
	push rsi
	push rdx
	push rcx
	push rax

	; Set PCI Status/Command values
	mov dl, 0x01			; Read Status/Command
	call os_bus_read
	bts eax, 10			; Set Interrupt Disable
	bts eax, 2			; Enable Bus Master
	bts eax, 0			; Enable IO port Space
	call os_bus_write		; Write updated Status/Command

	; Grab the Base I/O Address of the device

Without that, the IO ports will return all ones all day long.

[IanSeyler]

Thanks! I've added that in the latest commit. Oddly this never came up with physical hardware. Perhaps the device or firmware already set it. Either way it's safer to enable it anyway.