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-rw-r--r--Documentation/infiniband/ipoib.txt2
-rw-r--r--Documentation/infiniband/sysfs.txt12
2 files changed, 13 insertions, 1 deletions
diff --git a/Documentation/infiniband/ipoib.txt b/Documentation/infiniband/ipoib.txt
index f2cfe265e..47c1dd981 100644
--- a/Documentation/infiniband/ipoib.txt
+++ b/Documentation/infiniband/ipoib.txt
@@ -25,7 +25,7 @@ Partitions and P_Keys
main interface for a subinterface is in "parent."
Child interface create/delete can also be done using IPoIB's
- rtnl_link_ops, where childs created using either way behave the same.
+ rtnl_link_ops, where children created using either way behave the same.
Datagram vs Connected modes
diff --git a/Documentation/infiniband/sysfs.txt b/Documentation/infiniband/sysfs.txt
index 3ecf0c3a1..45bcafe6f 100644
--- a/Documentation/infiniband/sysfs.txt
+++ b/Documentation/infiniband/sysfs.txt
@@ -56,6 +56,18 @@ SYSFS FILES
ports/1/pkeys/10 contains the value at index 10 in port 1's P_Key
table.
+ There is an optional "hw_counters" subdirectory that may be under either
+ the parent device or the port subdirectories or both. If present,
+ there are a list of counters provided by the hardware. They may match
+ some of the counters in the counters directory, but they often include
+ many other counters. In addition to the various counters, there will
+ be a file named "lifespan" that configures how frequently the core
+ should update the counters when they are being accessed (counters are
+ not updated if they are not being accessed). The lifespan is in milli-
+ seconds and defaults to 10 unless set to something else by the driver.
+ Users may echo a value between 0 - 10000 to the lifespan file to set
+ the length of time between updates in milliseconds.
+
MTHCA
The Mellanox HCA driver also creates the files: