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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-07-18 15:15:45 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-19 21:27:18 -0700 |
| commit | 91ba3c2128e9ee490a9f04bcd5b54749b18e4410 (patch) | |
| tree | c90f5711b990468dc684a8859cc9c498b8d4163d /arch/sparc64/kernel/vio.c | |
| parent | 48db7b7c50cdb06c85f0ff01b5c19ac34903048b (diff) | |
| download | linux-91ba3c2128e9ee490a9f04bcd5b54749b18e4410.tar.bz2 | |
[SPARC64]: Fix handling of multiple vdc-port nodes.
The "id" property in vdc-port nodes are not unique, they
are all zero. Therefore assign ID's using the parent's
"cfg-handle" property which will be unique.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/vio.c')
| -rw-r--r-- | arch/sparc64/kernel/vio.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c index 7e65b5a28bff..9ae1f61d4db9 100644 --- a/arch/sparc64/kernel/vio.c +++ b/arch/sparc64/kernel/vio.c @@ -221,6 +221,27 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, return NULL; } + if (!strcmp(type, "vdc-port")) { + u64 a; + + id = NULL; + mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_BACK) { + u64 target; + + target = mdesc_arc_target(hp, a); + id = mdesc_get_property(hp, target, + "cfg-handle", NULL); + if (id) + break; + } + if (!id) { + printk(KERN_ERR "VIO: vdc-prot lacks parent " + "cfg-handle.\n"); + return NULL; + } + } else + id = mdesc_get_property(hp, mp, "id", NULL); + bus_id_name = type; if (!strcmp(type, "domain-services-port")) bus_id_name = "ds"; @@ -260,13 +281,15 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, vio_fill_channel_info(hp, mp, vdev); - id = mdesc_get_property(hp, mp, "id", NULL); - if (!id) + if (!id) { snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%s", bus_id_name); - else + vdev->dev_no = ~(u64)0; + } else { snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%s-%lu", bus_id_name, *id); + vdev->dev_no = *id; + } vdev->dev.parent = parent; vdev->dev.bus = &vio_bus_type; |