Document that only == and != predicates are supported for IPv4, IPv6 and MAC addresses.
For values > 8 bytes in size, only == and != filter predicates are supported; document this also.
Signed-off-by: Alan Maguire alan.maguire@oracle.com --- Documentation/trace/events.rst | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/Documentation/trace/events.rst b/Documentation/trace/events.rst index f5fcb8e1218f..6a75e4e256c9 100644 --- a/Documentation/trace/events.rst +++ b/Documentation/trace/events.rst @@ -182,10 +182,31 @@ The field-names available for use in filters can be found in the
The relational-operators depend on the type of the field being tested:
+For IPv4, IPv6 and MAC addresses, the available operators are: + +==, != + +For example + +"dst == 127.0.0.1" + +"src != ::1" + +"mac_addr == ab:cd:ef:12:34:56" + The operators available for numeric fields are:
==, !=, <, <=, >, >=, &
+For numeric fields larger than 8 bytes, only + +==, != + +...are allowed, and values for comparison must match field size exactly. +For example, to match the "::1" IPv6 address: + +"dst == 0x00000000000000000000000000000001" + And for string fields they are:
==, !=, ~