Linux-libre 4.7.1-gnupck-4.7.1-gnu

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: