hosts/patate/hardware.nix

   1 { config, lib, pkgs, hostName, ... }:
   2 {
   3 hardware.cpu.intel.updateMicrocode = true;
   4 hardware.opengl.extraPackages = [
   5   pkgs.intel-media-driver # LIBVA_DRIVER_NAME=iHD
   6   pkgs.vaapiIntel         # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
   7   pkgs.vaapiVdpau
   8   pkgs.libvdpau-va-gl
   9 ];
  10 powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
  11 services.thinkfan = {
  12   enable = true;
  13   smartSupport = true;
  14   levels = [
  15     [0     0      57]
  16     [1     56     60]
  17     [2     59     63]
  18     [3     62     65]
  19     [4     64     67]
  20     [5     66     72]
  21     [6     71     78]
  22     [7     77     82]
  23     [127   81     32767]
  24   ];
  25 };
  26
  27 # https://bugzilla.kernel.org/show_bug.cgi?id=110941
  28 boot.kernelParams = [ "intel_pstate=no_hwp" ];
  29 boot.kernelModules = [ "kvm-intel" ];
  30 boot.cleanTmpDir = true;
  31 boot.tmpOnTmpfs = true;
  32 boot.extraModulePackages = [
  33   #config.boot.kernelPackages.exfat-nofuse
  34 ];
  35 boot.loader.grub = {
  36   enable  = true;
  37   version = 2;
  38   device  = "/dev/disk/by-id/ata-CT250MX500SSD1_2004E2849DD1";
  39   configurationLimit = 3;
  40   #zfsSupport = true;
  41   /*
  42   efiSupport = true;
  43   efi = {
  44     canTouchEfiVariables = false;
  45     efiSysMountPoint = "/boot/efi";
  46   };
  47   */
  48   #enableCryptodisk = true;
  49 };
  50 services.acpid = {
  51   enable = true;
  52   handlers = {
  53     brightnessDown = {
  54       event = "video/brightnessdown.*";
  55       action = "${pkgs.acpilight}/bin/xbacklight -dec 10";
  56     };
  57     brightnessUp = {
  58       event = "video/brightnessup.*";
  59       action = "${pkgs.acpilight}/bin/xbacklight -inc 10";
  60     };
  61   };
  62   acEventCommands = ''
  63     vals=($1)
  64     case ''${vals[3]} in
  65       00000000) # unplugged
  66         ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g powersave;;
  67       00000001) # plugged in
  68         ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g ondemand;;
  69     esac
  70   '';
  71 };
  72
  73 fileSystems."/boot" =
  74   { device = "/dev/disk/by-partlabel/${hostName}_ssd_boot";
  75     fsType = "ext2";
  76   };
  77 fileSystems."/boot/efi" =
  78   { device = "/dev/disk/by-partlabel/${hostName}_ssd_efi";
  79     fsType = "vfat";
  80   };
  81 swapDevices = [
  82   { device = "/dev/disk/by-partlabel/${hostName}_ssd_swap";
  83     randomEncryption = {
  84       enable = true;
  85       cipher = "aes-xts-plain64";
  86       source = "/dev/urandom";
  87     };
  88   }
  89 ];
  90 zramSwap = {
  91   enable = true;
  92   algorithm = lib.mkDefault "zstd";
  93   # There is little point creating a zram of greater
  94   # than twice the size of memory
  95   # since we expect a 2:1 compression ratio.
  96   # Note that zram uses about 0.1% of the size of the disk
  97   # when not in use so a huge zram is wasteful.
  98   memoryPercent = lib.mkDefault 150;
  99   # Linux supports multithreaded compression for 1 device since 3.15.
 100   # See https://lkml.org/lkml/2014/2/28/404 for details.
 101   swapDevices = lib.mkDefault 1;
 102 };
 103 boot.kernel.sysctl = {
 104   # Increase cache pressure, which increases the tendency of the kernel to
 105   # reclaim memory used for caching of directory and inode objects. You will use
 106   # less memory over a longer period of time. The performance hit is negated by
 107   # the downside of swapping sooner.
 108   "vm.vfs_cache_pressure" = lib.mkDefault 500;
 109
 110   # Increasing how aggressively the kernel will swap memory pages since we are
 111   # using ZRAM first.
 112   "vm.swappiness" = lib.mkDefault 100;
 113
 114   # Background processes will start writing right away when it hits the 1% limit
 115   "vm.dirty_background_ratio" = lib.mkDefault 1;
 116
 117   # The system won’t force synchronous I/O until it gets to 50% dirty_ratio.
 118   "vm.dirty_ratio" = lib.mkDefault 50;
 119 };
 120
 121 # The 32-bit host id of the host, formatted as 8 hexadecimal characters.
 122 # You should try to make this id unique among your hosts.
 123 # Manually generated with : head -c4 /dev/urandom | od -A none -t x4 | cut -d ' ' -f 2
 124 networking.hostId = "ec2adb40";
 125
 126 # none is the recommended elevator with ZFS (which has its own I/O scheduler)
 127 # and/or for SSD, whereas HDD could use mq-deadline.
 128 services.udev.extraRules = ''
 129   # set none scheduler for non-rotating disks
 130   ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="none"
 131 '';
 132
 133 boot.supportedFilesystems = [ "ntfs" "vfat" "zfs" ];
 134 boot.initrd.supportedFilesystems = [ "zfs" ];
 135 boot.initrd.availableKernelModules = [
 136   "ahci"
 137   "drbg"
 138   "ehci_pci"
 139   "gf128mul"
 140   "hmac"
 141   "sd_mod"
 142 ];
 143
 144 boot.zfs.forceImportAll  = false;
 145 boot.zfs.forceImportRoot = false;
 146 boot.zfs.enableUnstable = false;
 147 boot.zfs.requestEncryptionCredentials = [ hostName ];
 148 services.zfs.autoScrub.enable = true;
 149
 150 fileSystems."/" =
 151   { device = "${hostName}/root";
 152     fsType = "zfs";
 153   };
 154 fileSystems."/nix" =
 155   { device = "${hostName}/nix";
 156     fsType = "zfs";
 157   };
 158 fileSystems."/home/sevy" =
 159   { device = "${hostName}/home";
 160     fsType = "zfs";
 161   };
 162 fileSystems."/home/sevy/Documents" =
 163   { device = "${hostName}/home/Documents";
 164     fsType = "zfs";
 165   };
 166 fileSystems."/home/sevy/Images" =
 167   { device = "${hostName}/home/Images";
 168     fsType = "zfs";
 169   };
 170 fileSystems."/home/sevy/Téléchargements" =
 171   { device = "${hostName}/home/Downloads";
 172     fsType = "zfs";
 173   };
 174 fileSystems."/home/sevy/.thunderbird" =
 175   { device = "${hostName}/home/Mails";
 176     fsType = "zfs";
 177   };
 178 fileSystems."/home/sevy/Vidéos" =
 179   { device = "${hostName}/home/Videos";
 180     fsType = "zfs";
 181   };
 182 fileSystems."/var" =
 183   { device = "${hostName}/var";
 184     fsType = "zfs";
 185   };
 186 fileSystems."/var/cache" =
 187   { device = "${hostName}/var/cache";
 188     fsType = "zfs";
 189   };
 190 fileSystems."/var/log" =
 191   { device = "${hostName}/var/log";
 192     fsType = "zfs";
 193   };
 194 fileSystems."/var/tmp" =
 195   { device = "${hostName}/var/tmp";
 196     fsType = "zfs";
 197   };
 198
 199 }