[src/trunk]: src/sys/arch/x86/pci efiboot reports parent ppb bus/device/funct...

[nonaka <nonaka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/65511bee074d
branches:  trunk
changeset: 321954:65511bee074d
user:      nonaka <nonaka%NetBSD.org@localhost>
date:      Wed Apr 11 10:34:19 2018 +0000

description:
efiboot reports parent ppb bus/device/function of booted network inteface.

diffstat:

 sys/arch/x86/pci/pci_machdep.c |  29 ++++++++++++++++++++++++-----
 1 files changed, 24 insertions(+), 5 deletions(-)

diffs (80 lines):

diff -r 34642ef11bc5 -r 65511bee074d sys/arch/x86/pci/pci_machdep.c
--- a/sys/arch/x86/pci/pci_machdep.c    Wed Apr 11 10:32:09 2018 +0000
+++ b/sys/arch/x86/pci/pci_machdep.c    Wed Apr 11 10:34:19 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pci_machdep.c,v 1.79 2017/06/01 02:45:08 chs Exp $     */
+/*     $NetBSD: pci_machdep.c,v 1.80 2018/04/11 10:34:19 nonaka Exp $  */
 
 /*-
  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@@ -73,7 +73,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.79 2017/06/01 02:45:08 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.80 2018/04/11 10:34:19 nonaka Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -98,6 +98,7 @@
 #include <dev/pci/pcireg.h>
 #include <dev/pci/pccbbreg.h>
 #include <dev/pci/pcidevs.h>
+#include <dev/pci/ppbvar.h>
 #include <dev/pci/genfb_pcivar.h>
 
 #include <dev/wsfb/genfbvar.h>
@@ -149,6 +150,10 @@
 #include <dev/pci/puccn.h>
 #endif
 
+#ifndef XEN
+#include <x86/efi.h>
+#endif
+
 #include "opt_pci_conf_mode.h"
 
 #ifdef PCI_CONF_MODE
@@ -1016,6 +1021,7 @@
 device_pci_register(device_t dev, void *aux)
 {
        static bool found_console = false;
+       device_t parent = device_parent(dev);
 
        device_pci_props_register(dev, aux);
 
@@ -1037,8 +1043,7 @@
                 * information (checked below) must be sufficient to
                 * identify the device.
                 */
-               if (bin->bus == BI_BUS_PCI &&
-                   device_is_a(device_parent(dev), "pci")) {
+               if (bin->bus == BI_BUS_PCI && device_is_a(parent, "pci")) {
                        struct pci_attach_args *paa = aux;
                        int b, d, f;
 
@@ -1052,9 +1057,23 @@
                        pci_decompose_tag(paa->pa_pc, paa->pa_tag, &b, &d, &f);
                        if (bin->addr.tag == ((b << 8) | (d << 3) | f))
                                return dev;
+
+#ifndef XEN
+                       /*
+                        * efiboot reports parent ppb bus/device/function.
+                        */
+                       device_t grand = device_parent(parent);
+                       if (efi_probe() && grand && device_is_a(grand, "ppb")) {
+                               struct ppb_softc *ppb_sc = device_private(grand);
+                               pci_decompose_tag(ppb_sc->sc_pc, ppb_sc->sc_tag,
+                                   &b, &d, &f);
+                               if (bin->addr.tag == ((b << 8) | (d << 3) | f))
+                                       return dev;
+                       }
+#endif
                }
        }
-       if (device_parent(dev) && device_is_a(device_parent(dev), "pci") &&
+       if (parent && device_is_a(parent, "pci") &&
            found_console == false) {
                struct btinfo_framebuffer *fbinfo;
                struct pci_attach_args *pa = aux;