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Nico Schottelius 2019-07-24 23:33:09 +02:00
parent fa28b46285
commit a3dd7ee106
1 changed files with 223 additions and 12 deletions
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@ -3330,14 +3330,15 @@ https://en.wikipedia.org/wiki/IPv4_header_checksum
| eth1 <--> nf3 |
** Compile log - VERSIONS
| 5.1. - 5.5 | failure due to variable renaming |
| 5.6 | subparser: compiled! |
| 5.7 | subcontrol: [nsg] |
| 5.6 | subparser: compiled: OK |
| 5.7 | subcontrol: [nsg]: OK |
| 5.8 | nat64 actions/table: OK |
| 5.9 | nat64+headers [esprimo]: |
| 6.1 | ARP: mixed matches in table, ABORT |
| 6.2 | No arp, Vivado Simulator kernel has encounted an exception, ABORT |
| 6.3 | Fixed lpm bug, ABORT |
| 6.4 | table size = 64, [nsg] |
| 5.9 | nat64+headers [esprimo]: OK |
| 6.1 | ARP: mixed matches in table: ABORT |
| 6.2 | No arp, Vivado Simulator kernel has encounted an exception: ABORT |
| 6.3 | Fixed lpm bug: ABORT |
| 6.4 | table size = 64, [nsg]: |
| 6.5 | udp in ipv6 integrated with ugly define [esprimo]: |
** TODO Benchmark/comparison
*** TODO Setup / Benchmark Jool
*** TODO Setup / Benchmark tayga
@ -6446,7 +6447,7 @@ release, use 'get_user_parameters' instead
**** TODO install mate for getting xlibraries
**** Install sdnet
*** DONE 2019-07-24: add features to netpfga: LPM tables cannot be 64
*** DONE 2019-07-24: LIMIT add features to netpfga: LPM tables cannot be 64
CLOSED: [2019-07-24 Wed 13:23]
#+BEGIN_CENTER
minip4_solution.p4(38): [--Wwarn=uninitialized_out_param] warning: out parameter meta may be uninitialized when RealParser terminates
@ -6476,7 +6477,7 @@ nico@nsg-System:~/master-thesis/netpfga/log$
#+END_CENTER
*** DONE 2019-07-24: table match types are not the same error
*** DONE 2019-07-24: LIMIT table match types are not the same error
CLOSED: [2019-07-24 Wed 22:35]
- Missing feature in
https://cs344-stanford.github.io/documentation/p4c-sdnet-missing-features.pdf
@ -6529,7 +6530,7 @@ ARP disabled:
}
#+END_CENTER
*** DONE 2019-07-24: Vivado Simulator kernel has encounted an exception from DPI C function: LPM_VerifyDataset
*** DONE 2019-07-24: BUG Vivado Simulator kernel has encounted an exception from DPI C function: LPM_VerifyDataset
CLOSED: [2019-07-24 Wed 22:41]
- maybe LPM problem -> rewrite tables
#+BEGIN_CENTER
@ -6541,7 +6542,7 @@ s/sume-sdnet-switch/projects/minip4/nf_sume_sdnet_ip/SimpleSumeSwitch/realmain_l
FATAL_ERROR: Vivado Simulator kernel has encounted an exception from DPI C function: LPM_VerifyDataset(). Please correct.
Time: 2016466 ps Iteration: 0 Process: /SimpleSumeSwitch_tb/LPM_VerifyDataset
File: /home/nico/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/projects/minip4/nf_sume_sdnet_ip/SimpleSumeSwitch/Testbench/SimpleSumeSwitch_tb.sv
*** DONE 2019-07-24: table size too small
*** DONE 2019-07-24: LIMIT table size too small
CLOSED: [2019-07-24 Wed 22:44]
- raising again - this is a total madness
@ -6561,7 +6562,8 @@ actions_nat64_generic.p4(173): error: could not not map table size size
#+END_CENTER
#+END_CENTER
*** TODO 2019-07-24: unsupported data plane arguments (BUG)
*** DONE 2019-07-24: BUG unsupported data plane arguments
CLOSED: [2019-07-24 Wed 22:54]
#+BEGIN_CENTER
actions_egress.p4(89): error: data-plane arguments in default_actions are currently unsupported: realmain_controller_debug_table_id_0
@ -6575,6 +6577,215 @@ Compiler Bug: actions_egress.p4(89): unhandled expression realmain_controller_de
#+END_CENTER
*** TODO 2019-07-24: BUG unhandled node: <IfStatement>(471564)
- Removing the call to " delta_udp_from_v6_to_v4()" fixes the
problem.
- Calling v4sum() only works
- Calling v4sum() and v6sum() works
- Calling delta_prepare() that calls v4sum() and v6sum() works
- Calling delta_prepare() and delta_udp_from_v6_to_v4() FAILS
- Renaming delta_udp_from_v6_to_v4() to stupid() FAILS
- Emptying delta_udp_from_v6_to_v4() WORKS
#+BEGIN_CENTER
minip4_solution.p4(39)
parser RealParser(
^^^^^^^^^^
terminate called after throwing an instance of 'Util::CompilerBug'
what(): In file: /wrk/hdscratch/staff/mohan/p4c_sdnet/build/p4c/extensions/sdnet/writers/pxWriter.h:20
Compiler Bug: unhandled node: <IfStatement>(471564)
Makefile:34: recipe for target 'all' failed
make[1]: *** [all] Error 134
make[1]: Leaving directory '/home/nico/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/projects/minip4/src'
Makefile:31: recipe for target 'frontend' failed
#+END_CENTER
Commenting out 2 ifs (not nested) makes it compile again:
#+BEGIN_CENTER
// if(hdr.udp.isValid()) {
// #ifdef USE_NICO_DELTA_CHECKSUM
// delta_udp_from_v6_to_v4();
// #else
// meta.chk_udp_v4 = 1;
// #endif
// }
// if(hdr.tcp.isValid()) {
// #ifdef USE_NICO_DELTA_CHECKSUM
// delta_tcp_from_v6_to_v4();
// #else
// meta.chk_tcp_v4 = 1;
// #endif
// }
#+END_CENTER
Only enabling the following triggers the bug again:
#+BEGIN_CENTER
if(hdr.udp.isValid()) {
#ifdef USE_NICO_DELTA_CHECKSUM
delta_udp_from_v6_to_v4();
#else
meta.chk_udp_v4 = 1;
#endif
}
#+END_CENTER
Even this code is enough:
#+BEGIN_CENTER
if(hdr.udp.isValid()) {
delta_udp_from_v6_to_v4();
}
#+END_CENTER
This apply block still triggers the bug:
#+BEGIN_CENTER
apply {
if(hdr.ipv6.isValid()) {
if(nat64.apply().hit) { /* generic / static nat64 done */
// if(hdr.icmp6.isValid()) {
// nat64_icmp6_generic();
// // if(hdr.icmp6.type == ICMP6_ECHO_REPLY) {
// // hdr.icmp.type = ICMP_ECHO_REPLY;
// // 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()) {
// #ifdef USE_NICO_DELTA_CHECKSUM
// delta_tcp_from_v6_to_v4();
// #else
// meta.chk_tcp_v4 = 1;
// #endif
// }
v4_networks.apply(); /* apply egress for IPv4 */
exit; /* no further v6 processing */
}
}
lookup_table.apply();
}
}
#+END_CENTER
This works:
#+BEGIN_CENTER
if(hdr.udp.isValid()) {
v4sum();
v6sum();
// delta_udp_from_v6_to_v4();
}
#+END_CENTER
This works:
#+BEGIN_CENTER
if(hdr.udp.isValid()) {
// v4sum();
// v6sum();
delta_prepare();
// delta_udp_from_v6_to_v4();
}
#+END_CENTER
This does not work:
#+BEGIN_CENTER
if(hdr.udp.isValid()) {
delta_prepare();
delta_udp_from_v6_to_v4();
}
#+END_CENTER
Also fails:
#+BEGIN_CENTER
if(hdr.udp.isValid()) {
//delta_prepare();
//delta_udp_from_v6_to_v4();
stupid();
}
#+END_CENTER
Works:
#+BEGIN_CENTER
action delta_udp_from_v6_to_v4() {}
#+END_CENTER
Works also:
#+BEGIN_CENTER
action delta_udp_from_v6_to_v4()
{
delta_prepare();
bit<17> tmp = (bit<17>) hdr.udp.checksum + (bit<17>) meta.v4sum;
// if (tmp[16:16] == 1) {
// tmp = tmp + 1;
// tmp[16:16] = 0;
// }
// tmp = tmp + (bit<17>) (0xffff - meta.v6sum);
// if (tmp[16:16] == 1) {
// tmp = tmp + 1;
// tmp[16:16] = 0;
// }
hdr.udp.checksum = (bit<16>) tmp;
}
#+END_CENTER
Fails:
#+BEGIN_CENTER
action delta_udp_from_v6_to_v4()
{
delta_prepare();
bit<17> tmp = (bit<17>) hdr.udp.checksum + (bit<17>) meta.v4sum;
if (tmp[16:16] == 1) {
tmp = tmp + 1;
tmp[16:16] = 0;
}
// tmp = tmp + (bit<17>) (0xffff - meta.v6sum);
// if (tmp[16:16] == 1) {
// tmp = tmp + 1;
// tmp[16:16] = 0;
// }
hdr.udp.checksum = (bit<16>) tmp;
}
#+END_CENTER
** The NetPFGA saga
Problems encountered:
- The logfile for a compile run is 10k+ lines