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|
{
config,
lib,
pkgs,
...
}:
with lib;
let
cfg = config.networking.rxe;
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 rxe_\<interface\>.
UDP port 4791 must be open on the respective ethernet interfaces.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
systemd.services.rxe = {
description = "RoCE interfaces";
wantedBy = [ "multi-user.target" ];
after = [
"systemd-modules-load.service"
"network-online.target"
];
wants = [
"network-pre.target"
"network-online.target"
];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
ExecStart = map (
x: "${pkgs.iproute2}/bin/rdma link add rxe_${x} type rxe netdev ${x}"
) cfg.interfaces;
ExecStop = map (x: "${pkgs.iproute2}/bin/rdma link delete rxe_${x}") cfg.interfaces;
};
};
};
}
|
