[doc] egress works with table on NetFPGA

doc/Design.tex

@@ -4,3 +4,10 @@ Description of the theory/software/hardware that you designed.
 %               the architecture
 
 Maybe figures here? controller,
+
+\section{\label{Design:NetPFGA}NetFPGA}
+
+Netpfga live,
+Vivado
+SDNET
+xx k lines of supporting code

doc/Results.tex

@@ -18,11 +18,27 @@ test framework openvswitch
 
 
 \section{\label{Results:NetPFGA}NetFPGA}
-\subsection{\label{Results:NetPFGA:challenges}Challenges}
+General result: limited NAT64 is working, however
+
+\subsection{\label{Results:NetPFGA:challenge-checksum}No Payload checksumming}
+\subsection{\label{Results:NetPFGA:challenges}Other Challenges}
 Many workarounds
 
 Table size 63, table size 64,
 
+Table entries require arguments of all possible actions, not only used
+one.
+
+Compile time hours
+
+Silent errors
+
+Unclear errors: broken board
+
+Due to the very fragile nature of the build framework from the
+NetFPGA-Live repository,
+
+Reproducibility:
 
 \section{\label{Results:P4}P4}
 

doc/appendix.tex

@@ -1,5 +1,6 @@
 \chapter{\label{appendixA}Test descriptions}
-
+\section{\label{chapterA:netpfga-setup}NetFPGA Setup}
+Description of installation, commit of netpfga-live
 
 \section{\label{chapterA:section1}NetFPGA NAT64 Test cases}
 todo: add graphic of nsg <-> esprimo cabling
@@ -13,7 +14,24 @@ ip neigh add 10.0.0.42 lladdr f8:f2:1e:09:62:d1 dev enp2s0f0
 
 \end{verbatim}
 
-\subsection{Test 1: do IPv4 egress settings work}
+For all test cases the following network settings on esprimo:
+
+\begin{verbatim}
+12: enp2s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
+    link/ether f8:f2:1e:09:62:d0 brd ff:ff:ff:ff:ff:ff
+    inet 10.0.0.42/24 scope global enp2s0f0
+       valid_lft forever preferred_lft forever
+    inet6 fe80::faf2:1eff:fe09:62d0/64 scope link
+       valid_lft forever preferred_lft forever
+13: enp2s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
+    link/ether f8:f2:1e:09:62:d1 brd ff:ff:ff:ff:ff:ff
+    inet6 2001:db8:42::42/64 scope global
+       valid_lft forever preferred_lft forever
+    inet6 fe80::faf2:1eff:fe09:62d1/64 scope link
+       valid_lft forever preferred_lft forever
+\end{verbatim}
+
+\subsection{Test 1: IPv4 egress settings work}
 Scenario: simple egress port setting
 
 Step 1: getting correct values for table entries from python:
@@ -74,7 +92,7 @@ root@ESPRIMO-P956:~# ip neigh add 10.0.0.4 lladdr f8:f2:1e:09:62:d1 dev enp2s0f0
 Step 3: generating test packets, expecting 4 packets to show up on
 enp2s0f0:
 
-\begin{tiny}
+%\tvb
 \begin{verbatim}
 nico@ESPRIMO-P956:~$ sudo tcpdump -ni enp2s0f0
 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
@@ -84,11 +102,92 @@ listening on enp2s0f0, link-type EN10MB (Ethernet), capture size 262144 bytes
 10:49:29.222340 IP 10.0.0.42 > 10.0.0.4: ICMP echo request, id 4440, seq 2, length 64
 10:49:29.222418 IP 10.0.0.42 > 10.0.0.4: ICMP echo request, id 4440, seq 2, length 64
 \end{verbatim}
-\end{tiny}
+%\tve
 
 Result: sucess
 
 
+\subsection{Test 2: IPv6 egress}
+Similar to the IPv4 setting before, just for IPv6.
+
+Step 1: getting IP address values
+
+\begin{verbatim}
+>>> int(ipaddress.IPv6Address(u"2001:db8:42::4"))
+42540766411362381960998550477184434180L
+>>> int(ipaddress.IPv6Address(u"2001:db8:42::6"))
+42540766411362381960998550477184434182L
+>>> int(ipaddress.IPv6Address(u"2001:db8:42::42"))
+42540766411362381960998550477184434242L
+\end{verbatim}
+
+Step 2: setting table entries
+
+\begin{verbatim}
+>> table_cam_add_entry realmain_v6_networks_0 realmain.set_egress_port 42540766411362381960998550477184434182 => 64  0 0 0 0
+fields = [(u'hit', 1), (u'action_run', 3), (u'out_port', 8), (u'out_port', 8), (u'mac_addr', 48), (u'task', 16), (u'table_id', 16)]
+action_name = TopPipe.realmain.set_egress_port
+field_vals = [1, '64', '0', '0', '0', '0']
+CAM_Init_ValidateContext() - done
+WROTE 0x44020350 = 0x0006
+WROTE 0x44020354 = 0x0000
+WROTE 0x44020358 = 0x420000
+WROTE 0x4402035c = 0x20010db8
+WROTE 0x44020380 = 0x0000
+WROTE 0x44020384 = 0x0000
+WROTE 0x44020388 = 0x40000000
+WROTE 0x4402038c = 0x0001
+READ  0x44020344 = 0x0001
+WROTE 0x44020340 = 0x0001
+READ  0x44020344 = 0x0001
+READ  0x44020344 = 0x0001
+success
+>> table_cam_add_entry realmain_v6_networks_0 realmain.set_egress_port 42540766411362381960998550477184434242 => 64  0 0 0 0
+fields = [(u'hit', 1), (u'action_run', 3), (u'out_port', 8), (u'out_port', 8), (u'mac_addr', 48), (u'task', 16), (u'table_id', 16)]
+action_name = TopPipe.realmain.set_egress_port
+field_vals = [1, '64', '0', '0', '0', '0']
+CAM_Init_ValidateContext() - done
+WROTE 0x44020350 = 0x0042
+WROTE 0x44020354 = 0x0000
+WROTE 0x44020358 = 0x420000
+WROTE 0x4402035c = 0x20010db8
+WROTE 0x44020380 = 0x0000
+WROTE 0x44020384 = 0x0000
+WROTE 0x44020388 = 0x40000000
+WROTE 0x4402038c = 0x0001
+READ  0x44020344 = 0x0001
+WROTE 0x44020340 = 0x0001
+READ  0x44020344 = 0x0001
+READ  0x44020344 = 0x0001
+success
+>>
+\end{verbatim}
+
+Step 3: setting neighbor entries
+
+\begin{verbatim}
+nico@ESPRIMO-P956:~$ sudo ip -6 neigh add 2001:db8:42::6 lladdr f8:f2:1e:09:62:d0 dev enp2s0f1
+nico@ESPRIMO-P956:~$ sudo ip -6 neigh add 2001:db8:42::4 lladdr f8:f2:1e:09:62:d0 dev enp2s0f1
+\end{verbatim}
+
+Step 4: generating test packets
+
+\begin{verbatim}
+nico@ESPRIMO-P956:~$ ping6 -c2 2001:db8:42::6
+PING 2001:db8:42::6(2001:db8:42::6) 56 data bytes
+
+
+nico@ESPRIMO-P956:~$ sudo tcpdump -ni enp2s0f1
+tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
+listening on enp2s0f1, link-type EN10MB (Ethernet), capture size 262144 bytes
+11:30:17.287577 IP6 2001:db8:42::42 > 2001:db8:42::6: ICMP6, echo request, seq 1, length 64
+11:30:17.287599 IP6 2001:db8:42::42 > 2001:db8:42::6: ICMP6, echo request, seq 1, length 64
+11:30:18.310178 IP6 2001:db8:42::42 > 2001:db8:42::6: ICMP6, echo request, seq 2, length 64
+11:30:18.310258 IP6 2001:db8:42::42 > 2001:db8:42::6: ICMP6, echo request, seq 2, length 64
+
+\end{verbatim}
+
+Result: success, packet is seen twice.
 
 \chapter{\label{appendixB}Appendix B?}
 

doc/plan.org

@@ -7267,7 +7267,7 @@ success
 *** DONE 2019-07-28: ping6 test for getting packet: failure
     CLOSED: [2019-07-28 Sun 12:43]
 
-*** TODO 2019-07-28: !!!!!!! NETPFGA PORT MAPPINGS
+*** TODO 2019-07-28:  *NETPFGA PORT MAPPINGS*
 nf_port_map = {
     "nf0":0b00000001,
     "nf1":0b00000100,
@@ -7283,8 +7283,6 @@ nf_port_map = {
 | port 1 | 0b00000100 |  4 |                  |
 | port 2 | 0b00010000 | 16 | esprimo enp2s0f0 |
 | port 3 | 0b01000000 | 64 | esprimo enp2s0f1 |
-|        |            |    |                  |
-
 *** DONE 2019-07-28: testing with port = 64 (first or last in theory): LAST! WORKS!
     CLOSED: [2019-07-28 Sun 13:19]
 #+BEGIN_CENTER
@@ -8064,7 +8062,8 @@ listening on enp2s0f1, link-type EN10MB (Ethernet), capture size 262144 bytes
     - eth1 on nsg: seeing ipv4 and ipv6
     - eth1 on nsg: seeing icmp (ipv4)
     - enp2s0f0 SEES icmp6!
-*** TODO 2019-07-29: test table entries for moving to different port
+*** DONE 2019-07-29: test table entries for moving to different port
+    CLOSED: [2019-07-31 Wed 10:04]
 #+BEGIN_CENTER
 >> table_cam_add_entry realmain_dummy_table_for_netpfga_0 realmain.set_egress_port 34525 => 64
 fields = [(u'hit', 1), (u'action_run', 2), (u'out_port', 8)]
@@ -8092,6 +8091,60 @@ It works!!!!!
 
 *** DONE 2019-07-29: documentation: `portland.sty' not found: removed include
     CLOSED: [2019-07-29 Mon 20:27]
+*** TODO 2019-07-31: Test final NAT64 code: v6 egress
+#+BEGIN_CENTER
+>>> int(ipaddress.IPv6Address(u"2001:db8:42::70b4"))
+42540766411362381960998550477184463028L
+
+>>> int(ipaddress.IPv6Address(u"2001:db8:42::6"))
+42540766411362381960998550477184434182L
+
+>>> int(ipaddress.IPv4Address(u"10.0.0.42"))
+167772202
+
+>>> int(ipaddress.IPv4Address(u"10.0.0.42"))
+167772202
+
+>> table_cam_add_entry realmain_v4_networks_0 realmain.set_egress_port 167772202 => 16 0 0 0 0
+fields = [(u'hit', 1), (u'action_run', 3), (u'out_port', 8), (u'out_port', 8), (u'mac_addr', 48), (u'task', 16), (u'table_id', 16)]
+action_name = TopPipe.realmain.set_egress_port
+field_vals = [1, '16', '0', '0', '0', '0']
+CAM_Init_ValidateContext() - done
+WROTE 0x44020250 = 0xa00002a
+WROTE 0x44020280 = 0x0000
+WROTE 0x44020284 = 0x0000
+WROTE 0x44020288 = 0x10000000
+WROTE 0x4402028c = 0x0001
+READ  0x44020244 = 0x0001
+WROTE 0x44020240 = 0x0001
+READ  0x44020244 = 0x0001
+READ  0x44020244 = 0x0001
+success
+>>
+
+>>> int(ipaddress.IPv4Address(u"10.0.0.4"))
+167772164
+>> table_cam_add_entry realmain_v4_networks_0 realmain.set_egress_port 167772164 => 16 0 0 0 0
+fields = [(u'hit', 1), (u'action_run', 3), (u'out_port', 8), (u'out_port', 8), (u'mac_addr', 48), (u'task', 16), (u'table_id', 16)]
+action_name = TopPipe.realmain.set_egress_port
+field_vals = [1, '16', '0', '0', '0', '0']
+CAM_Init_ValidateContext() - done
+WROTE 0x44020250 = 0xa000004
+WROTE 0x44020280 = 0x0000
+WROTE 0x44020284 = 0x0000
+WROTE 0x44020288 = 0x10000000
+WROTE 0x4402028c = 0x0001
+READ  0x44020244 = 0x0001
+WROTE 0x44020240 = 0x0001
+READ  0x44020244 = 0x0001
+READ  0x44020244 = 0x0001
+success
+>>
+
+
+#+END_CENTER
+*** 2019-07-31: reading about \verb vs. \texttt
+    - probably want \verb, but cannot use in \newcommand
 ** The NetPFGA saga
 Problems encountered:
 - The logfile for a compile run is 10k+ lines

p4src/minip4_solution.p4

@@ -74,7 +74,6 @@ control RealMain(
 
         #include "netpfga_nat64.p4"
 
-
     }
 
 }

p4src/netpfga_nat64.p4

@@ -2,61 +2,61 @@ bool apply_v6networks = false;
 bool apply_v4networks = false;
 
 if(hdr.ipv6.isValid()) {
-            apply_v6networks = true;
+    apply_v6networks = true;
 
-            if(nat64.apply().hit) { /* generic / static nat64 done */
+    if(nat64.apply().hit) { /* generic / static nat64 done */
-                if(hdr.icmp6.isValid()) {
+        if(hdr.icmp6.isValid()) {
-                    nat64_icmp6_generic();
+            nat64_icmp6_generic();
 
-                    if(hdr.icmp6.type == ICMP6_ECHO_REPLY) {
+            if(hdr.icmp6.type == ICMP6_ECHO_REPLY) {
-                        hdr.icmp.type = ICMP_ECHO_REPLY;
+                hdr.icmp.type = ICMP_ECHO_REPLY;
-                        hdr.icmp.code = 0;
+                hdr.icmp.code = 0;
-                    }
-                    if(hdr.icmp6.type == ICMP6_ECHO_REQUEST) {
-                        hdr.icmp.type = ICMP_ECHO_REQUEST;
-                        hdr.icmp.code = 0;
-                    }
-                }
-
-                if(hdr.udp.isValid()) {
-                    delta_udp_from_v6_to_v4
-                }
-
-                if(hdr.tcp.isValid()) {
-                    delta_tcp_from_v6_to_v4
-                }
-                apply_v4networks = false;
-                apply_v6networks = true;
             }
-        } else if(hdr.ipv4.isValid()) {
+            if(hdr.icmp6.type == ICMP6_ECHO_REQUEST) {
-            apply_v4networks = true;
+                hdr.icmp.type = ICMP_ECHO_REQUEST;
-
+                hdr.icmp.code = 0;
-            if(nat46.apply().hit) {
-                if(hdr.icmp.isValid()) {
-                    nat46_icmp_generic();
-
-                    if(hdr.icmp.type == ICMP_ECHO_REPLY) {
-                        hdr.icmp6.type = ICMP6_ECHO_REPLY;
-                    }
-                    if(hdr.icmp.type == ICMP_ECHO_REQUEST) {
-                        hdr.icmp6.type = ICMP6_ECHO_REQUEST;
-                    }
-                }
-                if(hdr.udp.isValid()) {
-                    delta_udp_from_v4_to_v6
-                }
-                if(hdr.tcp.isValid()) {
-                    delta_tcp_from_v4_to_v6
-                }
-                apply_v4networks = true;
-                apply_v6networks = false;
             }
         }
 
-        if(apply_v4networks == true) {
+        if(hdr.udp.isValid()) {
-            v4_networks.apply();
+            delta_udp_from_v6_to_v4
         }
 
-        if(apply_v6networks == true) {
+        if(hdr.tcp.isValid()) {
-            v6_networks.apply();
+            delta_tcp_from_v6_to_v4
         }
+        apply_v4networks = false;
+        apply_v6networks = true;
+    }
+} else if(hdr.ipv4.isValid()) {
+    apply_v4networks = true;
+
+    if(nat46.apply().hit) {
+        if(hdr.icmp.isValid()) {
+            nat46_icmp_generic();
+
+            if(hdr.icmp.type == ICMP_ECHO_REPLY) {
+                hdr.icmp6.type = ICMP6_ECHO_REPLY;
+            }
+            if(hdr.icmp.type == ICMP_ECHO_REQUEST) {
+                hdr.icmp6.type = ICMP6_ECHO_REQUEST;
+            }
+        }
+        if(hdr.udp.isValid()) {
+            delta_udp_from_v4_to_v6
+        }
+        if(hdr.tcp.isValid()) {
+            delta_tcp_from_v4_to_v6
+        }
+        apply_v4networks = true;
+        apply_v6networks = false;
+    }
+}
+
+if(apply_v4networks == true) {
+    v4_networks.apply();
+}
+
+if(apply_v6networks == true) {
+    v6_networks.apply();
+}