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53 lines
1.2 KiB
Nix
53 lines
1.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.networking.rxe;
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in {
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###### interface
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options = {
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networking.rxe = {
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enable = mkEnableOption (lib.mdDoc "RDMA over converged ethernet");
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interfaces = mkOption {
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type = types.listOf types.str;
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default = [ ];
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example = [ "eth0" ];
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description = lib.mdDoc ''
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Enable RDMA on the listed interfaces. The corresponding virtual
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RDMA interfaces will be named rxe_\<interface\>.
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UDP port 4791 must be open on the respective ethernet interfaces.
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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systemd.services.rxe = {
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description = "RoCE interfaces";
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wantedBy = [ "multi-user.target" ];
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after = [ "systemd-modules-load.service" "network-online.target" ];
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wants = [ "network-pre.target" ];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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ExecStart = map ( x:
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"${pkgs.iproute2}/bin/rdma link add rxe_${x} type rxe netdev ${x}"
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) cfg.interfaces;
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ExecStop = map ( x:
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"${pkgs.iproute2}/bin/rdma link delete rxe_${x}"
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) cfg.interfaces;
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};
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};
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};
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}
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