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nixos/rdma-core: add module for soft RoCE and test #34607

Merged
merged 2 commits into from
Feb 10, 2018
Merged

nixos/rdma-core: add module for soft RoCE and test #34607

merged 2 commits into from
Feb 10, 2018
+118 −0

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markuskowa
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Motivation for this change

This PR adds a nixos module that manages RDMA over converged ethernet (RoCE) interfaces. The test runs the basic test programs from rmda-core to ensure that RDMA communication between two nodes works properly.

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option build-use-sandbox in nix.conf on non-NixOS)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Fits CONTRIBUTING.md.

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@GrahamcOfBorg GrahamcOfBorg added 6.topic: nixos Issues or PRs affecting NixOS modules, or package usability issues specific to NixOS 8.has: module (update) This PR changes an existing module in `nixos/` 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin 10.rebuild-linux: 0 This PR does not cause any packages to rebuild on Linux labels Feb 5, 2018
@Mic92
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Mic92 commented Feb 9, 2018

@GrahamcOfBorg test rxe

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Success on x86_64-linux (full log)

Partial log (click to expand)

client: exit status 0
server: running command: sync
server: exit status 0
test script finished in 31.88s
cleaning up
killing client (pid 611)
killing server (pid 593)
vde_switch: EOF on stdin, cleaning up and exiting
vde_switch: Could not remove ctl dir '/tmp/nix-build-vm-test-run-rxe.drv-0/vde1.ctl': Directory not empty
/nix/store/mmjv7rnkqgl4dmas6yw54bhz1kvpnvam-vm-test-run-rxe

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Success on aarch64-linux (full log)

Partial log (click to expand)

client: exit status 0
server: running command: sync
server: exit status 0
test script finished in 52.68s
cleaning up
killing client (pid 645)
killing server (pid 627)
vde_switch: EOF on stdin, cleaning up and exiting
vde_switch: Could not remove ctl dir '/build/vde1.ctl': Directory not empty
/nix/store/q5jjaba4a62nqhg3d0gjskbg3931jnpz-vm-test-run-rxe

Mic92
Mic92 reviewed Feb 9, 2018
View reviewed changes
nixos/modules/services/networking/rxe.nix Outdated
wantedBy = [ "sysinit.target" ];
after = [ "systemd-modules-load.service" ];
wants = [ "network-pre.target" ];
before = [ "network-pre.target" ];
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network-pre.target is meant for firewalls, we create network interfaces after instead of before.
Since our network configuration depends on device units, it should wait before interfaces are up and created before addresses are assigned.

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I set it to after=network-online.target. That should be a safe bet since rxe gets transported over UDP.

Mic92
Mic92 reviewed Feb 9, 2018
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nixos/modules/services/networking/rxe.nix Outdated
path = with pkgs; [ kmod rdma-core ];
description = "RoCE interfaces";

wantedBy = [ "sysinit.target" ];
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Use multi-user.target here instead.

@Mic92 Mic92 merged commit bf53dc6 into NixOS:master Feb 10, 2018
@markuskowa
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Thanks for clearing the back log!

@markuskowa markuskowa deleted the rxe-module-pr branch February 11, 2018 09:04
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6.topic: nixos Issues or PRs affecting NixOS modules, or package usability issues specific to NixOS 8.has: module (update) This PR changes an existing module in `nixos/` 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin 10.rebuild-linux: 0 This PR does not cause any packages to rebuild on Linux
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