[src/trunk]: src/sys/arch/sparc64/sparc64 Match firmware paths for the boot d...

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

details:   https://anonhg.NetBSD.org/src/rev/28c7cf241182
branches:  trunk
changeset: 801610:28c7cf241182
user:      martin <martin%NetBSD.org@localhost>
date:      Mon Aug 11 11:51:45 2014 +0000

description:
Match firmware paths for the boot device in Mac style, as used by
QEMU/OpenBIOS.

diffstat:

 sys/arch/sparc64/sparc64/autoconf.c |  29 ++++++++++++++++++++++++++---
 1 files changed, 26 insertions(+), 3 deletions(-)

diffs (64 lines):

diff -r 33e740f242e0 -r 28c7cf241182 sys/arch/sparc64/sparc64/autoconf.c
--- a/sys/arch/sparc64/sparc64/autoconf.c       Mon Aug 11 10:37:59 2014 +0000
+++ b/sys/arch/sparc64/sparc64/autoconf.c       Mon Aug 11 11:51:45 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: autoconf.c,v 1.198 2014/07/25 17:21:32 nakayama Exp $ */
+/*     $NetBSD: autoconf.c,v 1.199 2014/08/11 11:51:45 martin Exp $ */
 
 /*
  * Copyright (c) 1996
@@ -48,7 +48,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.198 2014/07/25 17:21:32 nakayama Exp $");
+__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.199 2014/08/11 11:51:45 martin Exp $");
 
 #include "opt_ddb.h"
 #include "opt_kgdb.h"
@@ -775,7 +775,7 @@
 dev_path_drive_match(device_t dev, int ctrlnode, int target,
     uint64_t wwn, int lun)
 {
-       int child = 0;
+       int child = 0, ide_node = 0;
        char buf[OFPATHLEN];
 
        DPRINTF(ACDB_BOOTDEV, ("dev_path_drive_match: %s, controller %x, "
@@ -791,6 +791,27 @@
                if (child == ofbootpackage)
                        break;
 
+       if (child != ofbootpackage) {
+               /*
+                * Try Mac firmware style (also used by QEMU/OpenBIOS):
+                * below the controller there is an intermediate node
+                * for each IDE channel, and individual targets always
+                * are "@0"
+                */
+               for (ide_node = prom_firstchild(ctrlnode); ide_node != 0;
+                   ide_node = prom_nextsibling(ide_node)) {
+                       const char * name = prom_getpropstring(ide_node,
+                           "device_type");
+                       if (strcmp(name, "ide") != 0) continue;
+                       for (child = prom_firstchild(ide_node); child != 0;
+                           child = prom_nextsibling(child))
+                               if (child == ofbootpackage)
+                                       break;
+                       if (child == ofbootpackage)
+                               break;
+               }
+       }
+
        if (child == ofbootpackage) {
                const char * name = prom_getpropstring(child, "name");
 
@@ -805,6 +826,8 @@
                if (wwn)
                        snprintf(buf, sizeof(buf), "%s@w%016" PRIx64 ",%d",
                            name, wwn, lun);
+               else if (ide_node)
+                       snprintf(buf, sizeof(buf), "%s@0", name);
                else
                        snprintf(buf, sizeof(buf), "%s@%d,%d",
                            name, target, lun);