64 lines
1.6 KiB
Nix
64 lines
1.6 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.networking.rxe;
|
|
|
|
runRxeCmd = cmd: ifcs:
|
|
concatStrings ( map (x: "${pkgs.rdma-core}/bin/rxe_cfg -n ${cmd} ${x};") ifcs);
|
|
|
|
startScript = pkgs.writeShellScriptBin "rxe-start" ''
|
|
${pkgs.rdma-core}/bin/rxe_cfg -n start
|
|
${runRxeCmd "add" cfg.interfaces}
|
|
${pkgs.rdma-core}/bin/rxe_cfg
|
|
'';
|
|
|
|
stopScript = pkgs.writeShellScriptBin "rxe-stop" ''
|
|
${runRxeCmd "remove" cfg.interfaces }
|
|
${pkgs.rdma-core}/bin/rxe_cfg -n stop
|
|
'';
|
|
|
|
in {
|
|
###### interface
|
|
|
|
options = {
|
|
networking.rxe = {
|
|
enable = mkEnableOption "RDMA over converged ethernet";
|
|
interfaces = mkOption {
|
|
type = types.listOf types.str;
|
|
default = [ ];
|
|
example = [ "eth0" ];
|
|
description = ''
|
|
Enable RDMA on the listed interfaces. The corresponding virtual
|
|
RDMA interfaces will be named rxe0 ... rxeN where the ordering
|
|
will be as they are named in the list. UDP port 4791 must be
|
|
open on the respective ethernet interfaces.
|
|
'';
|
|
};
|
|
};
|
|
};
|
|
|
|
###### implementation
|
|
|
|
config = mkIf cfg.enable {
|
|
|
|
systemd.services.rxe = {
|
|
path = with pkgs; [ kmod rdma-core ];
|
|
description = "RoCE interfaces";
|
|
|
|
wantedBy = [ "multi-user.target" ];
|
|
after = [ "systemd-modules-load.service" "network-online.target" ];
|
|
wants = [ "network-pre.target" ];
|
|
|
|
serviceConfig = {
|
|
Type = "oneshot";
|
|
RemainAfterExit = true;
|
|
ExecStart = "${startScript}/bin/rxe-start";
|
|
ExecStop = "${stopScript}/bin/rxe-stop";
|
|
};
|
|
};
|
|
};
|
|
}
|
|
|