Sweetcomb global cleanup

-Merge IETF and Openconfig to use SCVPP 2
-Move L2 bridge from sc_vpp_interface to sc_vpp_v3po
-Implement tav2 dump
-Make openconfig-interfaces functions static
-Try one more dispatch after failure in VAPI_CALL
-Add error return code for scvpp
-Remove unused length maccros
-Return appropriate error code for interface dump when interface not found
-Improve scvpp test suite
-Change get_interface_id prototype
-Use interface_dump_iface in openconfig_interface.
-No more vapi types in openconfig_interfaces.c
-Move openconfig_local_routing VAPI operations to sc_vpp_ip
-Implement a multiple dump with a stack data structure
-Comment out state_cb code from openconfig_local_routing to use new
functions later.
-Rename YANG model to their fully qualified name : <module>@<revision>
-Remove headers almost empty and put registration declaration in
sc_model.h
-Shorten vapi context global variable name
-Reorganize scvpp unit test suite
-Add instructions to Makefile to install/uninstall YANG models in sysrepo.
-Add this new instructions to README.md.
-Reimplement interface_dump_all
-Use a common message at INFO Log Level to know when sysrepo callbacks
are triggered
-Remove old structure to perform dump of all interfaces
-Reimplement get_interface_name and add scvpp test for it
-Clean sys_util
-Use UNUSED maccro everywhere to have lighter prototypes
-Have ietf-interfaces:interfaces-state work with new dump function
-Add setup and teardown for NAT tests
-Remove unused tapv2 dump
-Remove useless sysrepo module callback
-Remove xpath_find_first_key usage in openconfig-interfaces
-Remove xpath_find_first_key in oc_local_routing and in the rest of
sweetcomb
-Reorganize scvpp include dir and fix scvpp_test new warnings
-Fix scvpp tests for ip routes
-Factorize scvpp nat and test return code of its function
-Correct test_dump_if_all if there is an existing hardware interface
-Implement a per-prefix dump in scvpp
-free changes iterator in ietf-interfaces
-Add new XPATH in oc local-routing
-Introduce helper methods for sysrepo config callbacks
-Factorize config callback
-Refactor the openconfig-local-routing config callback
-Use common foreach_change to iterate over changes in all models
-Create a sample directory gathering example of configurations supposed
to work with sweetcomb
-Fix state callback of oc-local-routing
-Add new sample for get operation on next-hop
-foreach_elt maccro condition forgets to read one element

Change-Id: I8e87fce577a00337977588f057a6e095a20f457c
Signed-off-by: YohanPipereau <ypiperea@cisco.com>

1 files changed, 18 insertions, 6 deletions

diff --git a/README.md b/README.md
index 96a10b9..83e6864 100644
--- a/README.md
+++ b/README.md
@@ -28,24 +28,32 @@ Details of the changes leading up to this version of Sweetcomb can be found unde
 
 Make sure you have added FD.io repository using https://packagecloud.io/fdio/release/
 installation script.
-You should have a sight on the release package, the package name may be defferent in 
-rpm and deb on defferent version
-(such vpp-plugins.deb in 19.01 and vpp-plugin-core.deb and vpp-plugin-dpdk.deb in 19.04)
+You should have a sight on the release package, the package name may be different depending on the distribution.
+(ex: vpp-plugins.deb for VPP 19.01 and vpp-plugin-core.deb and vpp-plugin-dpdk.deb in 19.04)
 
 Firstly, please follow below steps to install dependencies and build code:
+```
    cd $/sweetcomb/
    make install-dep
    make install-dep-extra
    make install-vpp
    make build-scvpp
    make build-plugins
+```
+
+Next, install YANG models in sysrepo:
+```
+    make install-models
+```
 
 Then, please start each daemon one by one:
+```
    start vpp (for example on Ubuntu: systemctl start vpp)
    sysrepod
    sysrepo-plugind
    netopeer2-server
    netopeer2-cli
+```
 
 Now you can utilize Sweetcomb.
 
@@ -54,13 +62,16 @@ For example, if you want to configure ipv4 address on HW interface TenGigabitEth
 You can follow below steps to verify if Sweetcomb is working well.
 
 Firstly, set interface up:
-  vppctl set interface state TenGigabitEthernet5/0/0 up
+`vppctl set interface state TenGigabitEthernet5/0/0 up`
 
 Then, starting netopeer2-cli on any host:
   netopeer2-cli
+```
 > connect --host <ip address running Sweetcomb> --login <user>
 > edit-config --target running --config 
-## Press Enter and then past below XML example into the editor and quit
+```
+
+```
 <interfaces xmlns="urn:ietf:params:xml:ns:yang:ietf-interfaces">
   <interface>
     <name>TenGigabitEthernet5/0/0</name>
@@ -77,8 +88,9 @@ Then, starting netopeer2-cli on any host:
     <enabled>true</enabled>
   </interface>
 </interfaces>
+```
 
 Finally, check the configuration result.
-  vppctl show interface address
+    `vppctl show interface address`
 If you configure above successfully, you will get ip address set up on interface TenGigabitEthernet5/0/0.