[P4-dev] P4-dev Digest, Vol 13, Issue 1

Sarath Kamisetty sarath.kamisetty at gmail.com
Thu Sep 1 19:53:18 EDT 2016


Hi,

#1. for bmv2, I had to do "make install" at the end (instead of just
"make") to install it in the standard location (this was pointed by Antonin
as well).

#2. I wasn't aware of "git submodule update --init --recursive" as you
pointed out. I ended up doing the hard way ... did git clone manually under
the subdirs based on the errors I was seeing for p4-build/ (otherwise it
was empty) and also under switchsai/submodules/ to get SAI header files).

Thanks for these consolidated steps, I now have a working setup.

Thanks,
Sarat

On Thu, Sep 1, 2016 at 1:39 PM, Jon Castro <castro.jon at gmail.com> wrote:

> Did you execute git submodule update --init --recursive scripts?
>
> I use following commands to install all modules Ubuntu Trusty:
>
> sudo apt-get update
> sudo apt-get install python-dev python-pip git make -y
> sudo pip install scapy thrift networkx ctypesgen
>
> git clone https://github.com/p4lang/ptf
> cd ptf
> sudo python setup.py install
> cd ..
>
> git clone https://github.com/p4lang/p4c-bm.git p4c-bmv2
> cd p4c-bmv2
> sudo pip install -r requirements.txt
> sudo python setup.py install
> cd ..
>
>
> git clone https://github.com/p4lang/behavioral-model.git bmv2
> cd bmv2
> ./install_deps.sh
> ./autogen.sh
> ./configure --with-pdfixed
> make
> cd ..
>
> git clone https://github.com/p4lang/switch
> cd switch
> git submodule update --init --recursive
> ./autogen.sh
> ./configure --with-bmv2 --with-switchsai
>  make
>
> Kind regards,
> Jon
>
> On Fri, Sep 2, 2016 at 2:00 AM, <p4-dev-request at lists.p4.org> wrote:
>
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>> Today's Topics:
>>
>>    1. Installing P4 sample switch (Sarath Kamisetty)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 31 Aug 2016 19:44:56 -0700
>> From: Sarath Kamisetty <sarath.kamisetty at gmail.com>
>> To: p4-dev at lists.p4.org
>> Subject: [P4-dev] Installing P4 sample switch
>> Message-ID:
>>         <CANxZJknKss5yNhTV-ybAKmUkh4bdNKKRQ4qnz4x62Vx8-8X=hQ at mail.gm
>> ail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Hi,
>>
>> I am trying to follow the instructions posted in
>> https://github.com/p4lang/switch to compile and run the switch
>> (switch.p4).
>> Is there one single script that performs all the steps ? I couldn't find
>> one. Any other documentation to get this up and running will be helpful.
>>
>> I did the following:
>>
>> #1) Installed PTF
>> #2) Installed p4c-bmv2
>> #3) Compiled bmv2 with --with-pdfixed option. Where do I install this ?
>> Instructions at https://github.com/p4lang/behavioral-model only mention
>> how
>> to compile, not about installing it in any location. It is unclear how
>> this
>> switch.p4 will use this path I compiled bmv2 in.
>>
>> At this point, I did the following under the switch/ directory
>>
>> ./autogen.sh
>>  ./configure --with-bmv2 --with-switchsai
>>  make
>>
>> And "make" failed promptly with the following error:
>>
>> [saratk at ubuntu:~/Projects/ws1/Closet/p4/matrix/apps/switch]make
>> make  all-recursive
>> make[1]: Entering directory
>> `/home/saratk/Projects/ws1/Closet/p4/matrix/apps/switch'
>> Making all in p4-build
>> make[2]: Entering directory
>> `/home/saratk/Projects/ws1/Closet/p4/matrix/apps/switch/p4-build'
>> make[2]: *** No rule to make target `all'.  Stop.
>> make[2]: Leaving directory
>> `/home/saratk/Projects/ws1/Closet/p4/matrix/apps/switch/p4-build'
>> make[1]: *** [all-recursive] Error 1
>> make[1]: Leaving directory
>> `/home/saratk/Projects/ws1/Closet/p4/matrix/apps/switch'
>> make: *** [all] Error 2
>> [saratk at ubuntu:~/Projects/ws1/Closet/p4/matrix/apps/switch]
>>
>> Suspecting something wrong with p4-build/, I followed instructions at
>> https://github.com/p4lang/p4-build/ under switch/p4-build/ and
>> "configure"
>> step failed:
>>
>> ./configure --with-bmv2 P4_NAME=switch
>> P4_PATH=/home/<user>/p4-apps/switch/p4src/switch.p4
>>
>> ...
>> ...
>> checking for vector... yes
>> checking for p4c-bmv2... /usr/local/bin/p4c-bmv2
>> *checking bm/pdfixed/pd_common.h usability... no*
>> *checking bm/pdfixed/pd_common.h presence... no*
>> *checking for bm/pdfixed/pd_common.h... no*
>> *configure: error: bmv2 pdfixed headers not found*
>> *configure: error: ./co**nfigure failed for p4-build*
>>
>> However, I do see these files from step 3 in different path. Is there some
>> environment variable that I need to set so this step succeeds ? Pls. help.
>>
>> Thanks,
>> Sarat
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