From: Martin Wilck <mwilck@xxxxxxxx>
On SAS expanders, node id's have 3 digits. sysfs paths look like this:
/sys/devices/pci0000:80/0000:80:02.0/0000:8b:00.0/0000:8c:09.0/0000:8f:00.0/host9/port-9:0/expander-9:0/port-9:0:13/expander-9:1/port-9:1:12/expander-9:2/port-9:2:4/end_device-9:2:4/target9:0:29/9:0:29:0/block/sdac
In that case, we should use the last digit as transport id.
Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
---
libmultipath/discovery.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index e818585..f3ce3f8 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -358,9 +358,16 @@ sysfs_get_tgt_nodename(struct path *pp, char *node)
if (value) {
tgtdev = udev_device_get_parent(parent);
while (tgtdev) {
+ char c;
+
tgtname = udev_device_get_sysname(tgtdev);
- if (tgtname && sscanf(tgtname, "end_device-%d:%d",
- &host, &tgtid) == 2)
+ if (!tgtname)
+ continue;
+ if (sscanf(tgtname, "end_device-%d:%d:%d%c",
+ &host, &channel, &tgtid, &c) == 3)
+ break;
+ if (sscanf(tgtname, "end_device-%d:%d%c",
+ &host, &tgtid, &c) == 2)
break;
tgtdev = udev_device_get_parent(tgtdev);
tgtid = -1;
--
2.29.2
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