Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

datapath: Use bpftool for generating BPF feature macros #10019

Merged
merged 5 commits into from Mar 17, 2020
Merged

datapath: Use bpftool for generating BPF feature macros #10019

merged 5 commits into from Mar 17, 2020

Commits on Mar 16, 2020

  1. checker: Support partial regexp matches 

    Matches from gocheck doesn't support partial regexp matches and requires
expressions that match the full string. This change introduces the new
PartialMatches checker which solves that problem.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
    @vadorovsky
    vadorovsky committed Mar 16, 2020
    Configuration menu
    Copy the full SHA
    c68e6ca View commit details
    Browse the repository at this point in the history

  2. datapath: Use bpftool for generating BPF feature macros 

    To adjust BPF programs to different kernels containing different BPF
features, bpftool provides macros like i.e.:

  # bpftool feature probe macros
  /*** System call availability ***/
  #define HAVE_BPF_SYSCALL
  [...]
  /*** eBPF map types ***/
  #define HAVE_HASH_MAP_TYPE
  [...]

Cilium implemented similar macros on its own, but from this change it's
going to use the bpftool implementation. After this change, the output
of `bpftool feature probe macros` is written to the `bpf_features.h`.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
    @vadorovsky
    vadorovsky committed Mar 16, 2020
    Configuration menu
    Copy the full SHA
    c7c4f51 View commit details
    Browse the repository at this point in the history

  3. bpf: Use bpftool feature macros 

    Previous changed dropped our custom BPF feature probes in favor of
bpftool which also generates feature macros for BPF programs. This
change switches all BPF programs to them.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
    @vadorovsky
    vadorovsky committed Mar 16, 2020
    Configuration menu
    Copy the full SHA
    ea87ca7 View commit details
    Browse the repository at this point in the history

  4. bpf: Remove old style probes 

    Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
    @vadorovsky
    vadorovsky committed Mar 16, 2020
    Configuration menu
    Copy the full SHA
    c2c6bd3 View commit details
    Browse the repository at this point in the history

  5. doc: Remove information about probes logs in /var/run/cilium/state 

    Previous changes remove Cilium BPF feature probes in favor of bpftool
probes, which are executed by daemon in Go code and errors are included
in the cilium-agent log. Additional .log file is not created anymore.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
    @vadorovsky
    vadorovsky committed Mar 16, 2020
    Configuration menu
    Copy the full SHA
    c3a7a5d View commit details
    Browse the repository at this point in the history