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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.hardware.rasdaemon;
in
{
options.hardware.rasdaemon = {
enable = mkEnableOption "RAS logging daemon";
record = mkOption {
type = types.bool;
default = true;
description = lib.mdDoc "record events via sqlite3, required for ras-mc-ctl";
};
mainboard = mkOption {
type = types.lines;
default = "";
description = lib.mdDoc "Custom mainboard description, see {manpage}`ras-mc-ctl(8)` for more details.";
example = ''
vendor = ASRock
model = B450M Pro4
# it should default to such values from
# /sys/class/dmi/id/board_[vendor|name]
# alternatively one can supply a script
# that returns the same format as above
script = <path to script>
'';
};
# TODO, accept `rasdaemon.labels = " ";` or `rasdaemon.labels = { dell = " "; asrock = " "; };'
labels = mkOption {
type = types.lines;
default = "";
description = lib.mdDoc "Additional memory module label descriptions to be placed in /etc/ras/dimm_labels.d/labels";
example = ''
# vendor and model may be shown by 'ras-mc-ctl --mainboard'
vendor: ASRock
product: To Be Filled By O.E.M.
model: B450M Pro4
# these labels are names for the motherboard slots
# the numbers may be shown by `ras-mc-ctl --error-count`
# they are mc:csrow:channel
DDR4_A1: 0.2.0; DDR4_B1: 0.2.1;
DDR4_A2: 0.3.0; DDR4_B2: 0.3.1;
'';
};
config = mkOption {
type = types.lines;
default = "";
description = lib.mdDoc ''
rasdaemon configuration, currently only used for CE PFA
for details, read rasdaemon.outPath/etc/sysconfig/rasdaemon's comments
'';
example = ''
# defaults from included config
PAGE_CE_REFRESH_CYCLE="24h"
PAGE_CE_THRESHOLD="50"
PAGE_CE_ACTION="soft"
'';
};
extraModules = mkOption {
type = types.listOf types.str;
default = [];
description = lib.mdDoc "extra kernel modules to load";
example = [ "i7core_edac" ];
};
testing = mkEnableOption "error injection infrastructure";
};
config = mkIf cfg.enable {
environment.etc = {
"ras/mainboard" = {
enable = cfg.mainboard != "";
text = cfg.mainboard;
};
# TODO, handle multiple cfg.labels.brand = " ";
"ras/dimm_labels.d/labels" = {
enable = cfg.labels != "";
text = cfg.labels;
};
"sysconfig/rasdaemon" = {
enable = cfg.config != "";
text = cfg.config;
};
};
environment.systemPackages = [ pkgs.rasdaemon ]
++ optionals (cfg.testing) (with pkgs.error-inject; [
edac-inject
mce-inject
aer-inject
]);
boot.initrd.kernelModules = cfg.extraModules
++ optionals (cfg.testing) [
# edac_core and amd64_edac should get loaded automatically
# i7core_edac may not be, and may not be required, but should load successfully
"edac_core"
"amd64_edac"
"i7core_edac"
"mce-inject"
"aer-inject"
];
boot.kernelPatches = optionals (cfg.testing) [{
name = "rasdaemon-tests";
patch = null;
extraConfig = ''
EDAC_DEBUG y
X86_MCE_INJECT y
PCIEPORTBUS y
PCIEAER y
PCIEAER_INJECT y
'';
}];
# i tried to set up a group for this
# but rasdaemon needs higher permissions?
# `rasdaemon: Can't locate a mounted debugfs`
# most of this taken from src/misc/
systemd.services = {
rasdaemon = {
description = "the RAS logging daemon";
documentation = [ "man:rasdaemon(1)" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
StateDirectory = optionalString (cfg.record) "rasdaemon";
ExecStart = "${pkgs.rasdaemon}/bin/rasdaemon --foreground"
+ optionalString (cfg.record) " --record";
ExecStop = "${pkgs.rasdaemon}/bin/rasdaemon --disable";
Restart = "on-abort";
# src/misc/rasdaemon.service.in shows this:
# ExecStartPost = ${pkgs.rasdaemon}/bin/rasdaemon --enable
# but that results in unpredictable existence of the database
# and everything seems to be enabled without this...
};
};
ras-mc-ctl = mkIf (cfg.labels != "") {
description = "register DIMM labels on startup";
documentation = [ "man:ras-mc-ctl(8)" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "oneshot";
ExecStart = "${pkgs.rasdaemon}/bin/ras-mc-ctl --register-labels";
RemainAfterExit = true;
};
};
};
};
meta.maintainers = [ maintainers.evils ];
}
|