Doc,various
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Nico Schottelius
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9 changed files with 500 additions and 74 deletions
187
doc/appendix.tex
187
doc/appendix.tex
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@ -298,7 +298,192 @@ Step 4: ping test should translate, but fail with wrong checksum:
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\chapter{\label{appendixB}Appendix B?}
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\chapter{\label{appendixB}NetFPGA Logs}
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Majority of the log files are stored inside the source code directory
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stored at ``netpfga/logs''. It follows a selection of log files
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\section{\label{chapterB:netpfga-flasherror}NetFPGA Flash Errors}
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Sometimes flashing bitfiles to the NetFPGA will fail. A random amount
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of reboots (1 to 3) and a random amount of reflashing will fix this
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problem.
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Below can be found the log output from the flashing process.
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\begin{verbatim}
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nico@nsg-System:~/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/projects/minip4/simple_sume_switch/bitfiles$ sudo bash -c ". $HOME/master-thesis/netpfga/bashinit && $(pwd -P)/program_switch.sh"
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++ which vivado
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+ xilinx_tool_path=/opt/Xilinx/Vivado/2018.2/bin/vivado
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+ bitimage=minip4.bit
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+ configWrites=config_writes.sh
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+ '[' -z minip4.bit ']'
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+ '[' -z config_writes.sh ']'
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+ '[' /opt/Xilinx/Vivado/2018.2/bin/vivado == '' ']'
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+ rmmod sume_riffa
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+ xsct /home/nico/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/tools/run_xsct.tcl -tclargs minip4.bit
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rlwrap: warning: your $TERM is 'screen' but rlwrap couldn't find it in the terminfo database. Expect some problems.
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RUN loading image file.
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minip4.bit
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100% 19MB 1.7MB/s 00:11
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fpga configuration failed. DONE PIN is not HIGH
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invoked from within
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"::tcf::eval -progress ::xsdb::print_progress {::tcf::cache_enter tcfchan#0 {tcf_cache_eval {process_tcf_actions_cache_client ::tcfclient#0::arg}}}"
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(procedure "::tcf::cache_eval_with_progress" line 2)
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invoked from within
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"::tcf::cache_eval_with_progress [dict get $arg chan] [list process_tcf_actions_cache_client $argvar] $progress"
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(procedure "process_tcf_actions" line 1)
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invoked from within
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"process_tcf_actions $arg ::xsdb::print_progress"
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(procedure "fpga" line 430)
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invoked from within
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"fpga -f $bitimage"
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(file "/home/nico/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/tools/run_xsct.tcl" line 33)
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+ bash /home/nico/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/tools/pci_rescan_run.sh
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Check programming FPGA or Reboot machine !
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+ rmmod sume_riffa
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rmmod: ERROR: Module sume_riffa is not currently loaded
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+ modprobe sume_riffa
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+ ifconfig nf0 up
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nf0: ERROR while getting interface flags: No such device
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+ ifconfig nf1 up
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nf1: ERROR while getting interface flags: No such device
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+ ifconfig nf2 up
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nf2: ERROR while getting interface flags: No such device
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+ ifconfig nf3 up
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nf3: ERROR while getting interface flags: No such device
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+ bash config_writes.sh
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\end{verbatim}
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\section{\label{chapterB:netpfga-flashok}NetFPGA Flash Success}
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A successful flashing process also emits a couple of errors, however
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the message ``fpga configuration failed. DONE PIN is not HIGH'' and
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its succeeding lines are missing, as seen below.
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After that in all cases a reboot is required; the PCI rescan in no
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tested case showed the nf devices.
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\begin{verbatim}
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nico@nsg-System:~$ cd $NF_DESIGN_DIR/bitfiles/
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nico@nsg-System:~/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/projects/minip4/simple_sume_switch/bitfiles$ sudo bash -c ". $HOME/master-thesis/netpfga/bashinit && $(pwd -P)/program_switch.sh"
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++ which vivado
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+ xilinx_tool_path=/opt/Xilinx/Vivado/2018.2/bin/vivado
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+ bitimage=minip4.bit
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+ configWrites=config_writes.sh
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+ '[' -z minip4.bit ']'
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+ '[' -z config_writes.sh ']'
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+ '[' /opt/Xilinx/Vivado/2018.2/bin/vivado == '' ']'
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+ rmmod sume_riffa
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+ xsct /home/nico/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/tools/run_xsct.tcl -tclargs minip4.bit
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rlwrap: warning: your $TERM is 'xterm-256color' but rlwrap couldn't find it in the terminfo database. Expect some problems.
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RUN loading image file.
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minip4.bit
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attempting to launch hw_server
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****** Xilinx hw_server v2018.2
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**** Build date : Jun 14 2018-20:18:37
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** Copyright 1986-2018 Xilinx, Inc. All Rights Reserved.
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INFO: hw_server application started
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INFO: Use Ctrl-C to exit hw_server application
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INFO: To connect to this hw_server instance use url: TCP:127.0.0.1:3121
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100% 19MB 1.7MB/s 00:11
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+ bash /home/nico/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/tools/pci_rescan_run.sh
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Check programming FPGA or Reboot machine !
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+ rmmod sume_riffa
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rmmod: ERROR: Module sume_riffa is not currently loaded
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+ modprobe sume_riffa
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+ ifconfig nf0 up
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nf0: ERROR while getting interface flags: No such device
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+ ifconfig nf1 up
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nf1: ERROR while getting interface flags: No such device
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+ ifconfig nf2 up
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nf2: ERROR while getting interface flags: No such device
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+ ifconfig nf3 up
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nf3: ERROR while getting interface flags: No such device
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+ bash config_writes.sh
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nico@nsg-System:~/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/projects/minip4/simple_sume_switch/bitfiles$
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\end{verbatim}
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\section{\label{chapterB:netpfga-kernelmodule}NetFPGA Kernel module}
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After a successful flash, loading the kernel module will enable nf
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devices to appear in the operating system.
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\begin{verbatim}
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nico@nsg-System:~$ ip l
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1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
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link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
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2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
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link/ether 74:d0:2b:98:38:f6 brd ff:ff:ff:ff:ff:ff
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3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
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link/ether f8:f2:1e:41:44:9c brd ff:ff:ff:ff:ff:ff
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4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
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link/ether f8:f2:1e:41:44:9d brd ff:ff:ff:ff:ff:ff
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5: wg0: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1420 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
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link/none
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nico@nsg-System:~$ ~/master-thesis/bin/build-load-drivers.sh
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+ cd /home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0
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+ sudo modprobe -r sume_riffa
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+ make clean
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make -C /lib/modules/4.15.0-55-generic/build M=/home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0 clean
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make[1]: Entering directory '/usr/src/linux-headers-4.15.0-55-generic'
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CLEAN /home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0/.tmp_versions
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CLEAN /home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0/Module.symvers
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make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-55-generic'
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+ make all
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make -C /lib/modules/4.15.0-55-generic/build M=/home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0 modules
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make[1]: Entering directory '/usr/src/linux-headers-4.15.0-55-generic'
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CC [M] /home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0/sume_riffa.o
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Building modules, stage 2.
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MODPOST 1 modules
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CC /home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0/sume_riffa.mod.o
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LD [M] /home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0/sume_riffa.ko
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make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-55-generic'
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+ sudo make install
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make -C /lib/modules/4.15.0-55-generic/build M=/home/nico/projects/P4-NetFPGA/lib/sw/std/driver/sume_riffa_v1_0_0 modules
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make[1]: Entering directory '/usr/src/linux-headers-4.15.0-55-generic'
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Building modules, stage 2.
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MODPOST 1 modules
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make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-55-generic'
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install -o root -g root -m 0755 -d /lib/modules/4.15.0-55-generic/extra/sume_riffa/
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install -o root -g root -m 0755 sume_riffa.ko /lib/modules/4.15.0-55-generic/extra/sume_riffa/
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depmod -a 4.15.0-55-generic
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+ sudo modprobe sume_riffa
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+ grep sume_riffa
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+ lsmod
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sume_riffa 28672 0
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nico@nsg-System:~$
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nico@nsg-System:~$ ip l
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1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
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link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
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2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
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link/ether 74:d0:2b:98:38:f6 brd ff:ff:ff:ff:ff:ff
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3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
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link/ether f8:f2:1e:41:44:9c brd ff:ff:ff:ff:ff:ff
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4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
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link/ether f8:f2:1e:41:44:9d brd ff:ff:ff:ff:ff:ff
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5: wg0: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1420 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
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link/none
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6: nf0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
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link/ether 02:53:55:4d:45:00 brd ff:ff:ff:ff:ff:ff
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7: nf1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
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link/ether 02:53:55:4d:45:01 brd ff:ff:ff:ff:ff:ff
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8: nf2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
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link/ether 02:53:55:4d:45:02 brd ff:ff:ff:ff:ff:ff
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9: nf3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
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link/ether 02:53:55:4d:45:03 brd ff:ff:ff:ff:ff:ff
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nico@nsg-System:~$
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\end{verbatim}
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\section{\label{chapterB:netpfga-nftraffic}NetFPGA misses packets on nf*}
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While the nf devices appear in the operating system, packets emitted
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by the netpfga cannot be sniffed on the nf interfaces
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directly. Instead one has to sniff packets on a physical network card
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that is connected to the specific output port.
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%Entries for the list of abbrevations:
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