commit f533440d69de4964b7ce89f617a41ff174d49f8a · pyrox.dev/nixpkgs

+100

nixos/modules/hardware/sata.nix

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       { config, lib, pkgs, ... }:

     

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       let

     

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         inherit (lib) mkEnableOption mkIf mkOption types;

     

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         cfg = config.hardware.sata.timeout;

     

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         buildRule = d:

     

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           lib.concatStringsSep ", " [

     

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             ''ACTION=="add"''

     

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             ''SUBSYSTEM=="block"''

     

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             ''ENV{ID_${lib.toUpper d.idBy}}=="${d.name}"''

     

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             ''TAG+="systemd"''

     

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             ''ENV{SYSTEMD_WANTS}="${unitName d}"''

     

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           ];

     

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         devicePath = device:

     

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           "/dev/disk/by-${device.idBy}/${device.name}";

     

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         unitName = device:

     

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           "sata-timeout-${lib.strings.sanitizeDerivationName device.name}";

     

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         startScript =

     

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           pkgs.writeShellScript "sata-timeout.sh" ''

     

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             set -eEuo pipefail

     

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             device="$1"

     

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             ${pkgs.smartmontools}/bin/smartctl \

     

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               -l scterc,${toString cfg.deciSeconds},${toString cfg.deciSeconds} \

     

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               --quietmode errorsonly \

     

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               "$device"

     

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           '';

     

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       in

     

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       {

     

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         meta.maintainers = with lib.maintainers; [ peterhoeg ];

     

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         options.hardware.sata.timeout = {

     

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           enable = mkEnableOption "SATA drive timeouts";

     

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           deciSeconds = mkOption {

     

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             example = "70";

     

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             type = types.int;

     

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             description = ''

     

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               Set SCT Error Recovery Control timeout in deciseconds for use in RAID configurations.

     

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               Values are as follows:

     

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                  0 = disable SCT ERT

     

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                 70 = default in consumer drives (7 seconds)

     

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               Maximum is disk dependant but probably 60 seconds.

     

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             '';

     

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           };

     

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           drives = mkOption {

     

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             description = "List of drives for which to configure the timeout.";

     

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             type = types.listOf

     

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               (types.submodule {

     

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                 options = {

     

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                   name = mkOption {

     

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                     description = "Drive name without the full path.";

     

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                     type = types.str;

     

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                   };

     

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                   idBy = mkOption {

     

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                     description = "The method to identify the drive.";

     

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                     type = types.enum [ "path" "wwn" ];

     

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                     default = "path";

     

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                   };

     

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                 };

     

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               });

     

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           };

     

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         };

     

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         config = mkIf cfg.enable {

     

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           services.udev.extraRules = lib.concatMapStringsSep "\n" buildRule cfg.drives;

     

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           systemd.services = lib.listToAttrs (map

     

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             (e:

     

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               lib.nameValuePair (unitName e) {

     

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                 description = "SATA timeout for ${e.name}";

     

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                 wantedBy = [ "sata-timeout.target" ];

     

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                 serviceConfig = {

     

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                   Type = "oneshot";

     

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                   ExecStart = "${startScript} '${devicePath e}'";

     

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                   PrivateTmp = true;

     

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                   PrivateNetwork = true;

     

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                   ProtectHome = "tmpfs";

     

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                   ProtectSystem = "strict";

     

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                 };

     

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               }

     

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             )

     

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             cfg.drives);

     

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           systemd.targets.sata-timeout = {

     

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             description = "SATA timeout";

     

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             wantedBy = [ "multi-user.target" ];

     

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           };

     

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         };

     

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       }

nixos/modules/module-list.nix

···

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         ./hardware/usb-wwan.nix

     

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         ./hardware/onlykey.nix

     

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         ./hardware/opentabletdriver.nix

     

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         ./hardware/sata.nix

     

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         ./hardware/wooting.nix

     

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         ./hardware/uinput.nix

     

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         ./hardware/video/amdgpu.nix