Commit b1ed8dab authored by Roland Dreier's avatar Roland Dreier Committed by Linus Torvalds

[PATCH] IPoIB: document conversion to debugfs

Update IPoIB documentation now that multicast debugging files have moved from
ipoibdebugfs to debugfs.
Signed-off-by: default avatarRoland Dreier <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 9adec1a8
......@@ -32,14 +32,13 @@ Debugging Information
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.
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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