tc: Update README and add config

Updated README.

Added config file that contains the minimum required features enabled to
run the tests currently present in the kernel.
This must be updated when new unittests are created and require their own
modules.
Signed-off-by: NKeara Leibovitz <kleib@mojatatu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

tools/testing/selftests/tc-testing/README

@@ -17,6 +17,10 @@ REQUIREMENTS
 *  The kernel must have veth support available, as a veth pair is created
    prior to running the tests.
 
+*  The kernel must have the appropriate infrastructure enabled to run all tdc
+   unit tests. See the config file in this directory for minimum required
+   features. As new tests will be added, config options list will be updated.
+
 *  All tc-related features being tested must be built in or available as
    modules.  To check what is required in current setup run:
    ./tdc.py -c
@@ -109,8 +113,8 @@ COMMAND LINE ARGUMENTS
 Run tdc.py -h to see the full list of available arguments.
 
 usage: tdc.py [-h] [-p PATH] [-D DIR [DIR ...]] [-f FILE [FILE ...]]
-              [-c [CATG [CATG ...]]] [-e ID [ID ...]] [-l] [-s] [-i] [-v]
-              [-d DEVICE] [-n NS] [-V]
+              [-c [CATG [CATG ...]]] [-e ID [ID ...]] [-l] [-s] [-i] [-v] [-N]
+              [-d DEVICE] [-P] [-n] [-V]
 
 Linux TC unit tests
 
@@ -118,8 +122,10 @@ optional arguments:
   -h, --help            show this help message and exit
   -p PATH, --path PATH  The full path to the tc executable to use
   -v, --verbose         Show the commands that are being run
+  -N, --notap           Suppress tap results for command under test
   -d DEVICE, --device DEVICE
                         Execute the test case in flower category
+  -P, --pause           Pause execution just before post-suite stage
 
 selection:
   select which test cases: files plus directories; filtered by categories
@@ -146,10 +152,10 @@ action:
   -i, --id              Generate ID numbers for new test cases
 
 netns:
-  options for nsPlugin(run commands in net namespace)
+  options for nsPlugin (run commands in net namespace)
 
-  -n NS, --namespace NS
-                        Run commands in namespace NS
+  -n, --namespace
+                        Run commands in namespace as specified in tdc_config.py
 
 valgrind:
   options for valgrindPlugin (run command under test under Valgrind)

tools/testing/selftests/tc-testing/config

+CONFIG_NET_SCHED=y
+
+#
+# Queueing/Scheduling
+#
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_SCH_INGRESS=m
+
+#
+# Classification
+#
+CONFIG_NET_CLS=y
+CONFIG_NET_CLS_FW=m
+CONFIG_NET_CLS_U32=m
+CONFIG_CLS_U32_PERF=y
+CONFIG_CLS_U32_MARK=y
+CONFIG_NET_EMATCH=y
+CONFIG_NET_EMATCH_STACK=32
+CONFIG_NET_EMATCH_CMP=m
+CONFIG_NET_EMATCH_NBYTE=m
+CONFIG_NET_EMATCH_U32=m
+CONFIG_NET_EMATCH_META=m
+CONFIG_NET_EMATCH_TEXT=m
+CONFIG_NET_EMATCH_IPSET=m
+CONFIG_NET_EMATCH_IPT=m
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_ACT_POLICE=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_GACT_PROB=y
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_SAMPLE=m
+CONFIG_NET_ACT_IPT=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_SIMP=m
+CONFIG_NET_ACT_SKBEDIT=m
+CONFIG_NET_ACT_CSUM=m
+CONFIG_NET_ACT_VLAN=m
+CONFIG_NET_ACT_BPF=m
+CONFIG_NET_ACT_CONNMARK=m
+CONFIG_NET_ACT_SKBMOD=m
+CONFIG_NET_ACT_IFE=m
+CONFIG_NET_ACT_TUNNEL_KEY=m
+CONFIG_NET_IFE_SKBMARK=m
+CONFIG_NET_IFE_SKBPRIO=m
+CONFIG_NET_IFE_SKBTCINDEX=m
+CONFIG_NET_CLS_IND=y
+CONFIG_NET_SCH_FIFO=y