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Subject[PATCH][4/3] IPoIB: document conversion to debugfs
Update IPoIB documentation now that multicast debugging files have
moved from ipoibdebugfs to debugfs.

Signed-off-by: Roland Dreier <>

--- linux-export.orig/Documentation/infiniband/ipoib.txt 2005-03-31 19:07:01.000000000 -0800
+++ linux-export/Documentation/infiniband/ipoib.txt 2005-04-01 09:43:27.122520190 -0800
@@ -32,14 +32,13 @@
mcast_debug_level to 1. These parameters can be controlled at
runtime through files in /sys/module/ib_ipoib/.

- CONFIG_INFINIBAND_IPOIB_DEBUG also enables the "ipoib_debugfs"
+ CONFIG_INFINIBAND_IPOIB_DEBUG also enables files in the debugfs
virtual filesystem. By mounting this filesystem, for example with

- mkdir -p /ipoib_debugfs
- mount -t ipoib_debugfs none /ipoib_debufs
+ mount -t debugfs none /sys/kernel/debug

- it is possible to get statistics about multicast groups from the
- files /ipoib_debugfs/ib0_mcg and so on.
+ it is possible to get statistics about munlticast groups from the
+ files /sys/kernel/debug/ipoib/ib0_mcg and so on.

The performance impact of this option is negligible, so it
is safe to enable this option with debug_level set to 0 for normal
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