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   levels = [
  14     [0     0      57]
  15     [1     56     62]
  16     [2     61     65]
  17     [3     64     66]
  18     [4     65     68]
  19     [5     67     71]
  20     [6     70     76]
  21     [7     75     81]
  22     [127   80     32767]
  23   ];
  24 };
  25
  26 # https://bugzilla.kernel.org/show_bug.cgi?id=110941
  27 boot.kernelParams = [ "intel_pstate=no_hwp" ];
  28 boot.kernelModules = [ "kvm-intel" ];
  29 boot.cleanTmpDir = true;
  30 boot.tmpOnTmpfs = true;
  31 boot.extraModulePackages = [
  32   #config.boot.kernelPackages.exfat-nofuse
  33 ];
  34 boot.loader.grub = {
  35   enable  = true;
  36   version = 2;
  37   device  = "/dev/disk/by-id/ata-CT250MX500SSD1_2004E2849DD1";
  38   configurationLimit = 3;
  39   #zfsSupport = true;
  40   /*
  41   efiSupport = true;
  42   efi = {
  43     canTouchEfiVariables = false;
  44     efiSysMountPoint = "/boot/efi";
  45   };
  46   */
  47   #enableCryptodisk = true;
  48 };
  49 services.acpid = {
  50   enable = true;
  51   handlers = {
  52     brightnessDown = {
  53       event = "video/brightnessdown.*";
  54       action = "${pkgs.acpilight}/bin/xbacklight -dec 10";
  55     };
  56     brightnessUp = {
  57       event = "video/brightnessup.*";
  58       action = "${pkgs.acpilight}/bin/xbacklight -inc 10";
  59     };
  60     acAdapter = {
  61       event = "ac_adapter/*";
  62       action = ''
  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             ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g ondemand;;
  69         esac
  70       '';
  71     };
  72   };
  73 };
  74
  75 fileSystems."/boot" =
  76   { device = "/dev/disk/by-partlabel/${hostName}_ssd_boot";
  77     fsType = "ext2";
  78   };
  79 fileSystems."/boot/efi" =
  80   { device = "/dev/disk/by-partlabel/${hostName}_ssd_efi";
  81     fsType = "vfat";
  82   };
  83 swapDevices = [
  84   { device = "/dev/disk/by-partlabel/${hostName}_ssd_swap";
  85     randomEncryption = {
  86       enable = true;
  87       cipher = "aes-xts-plain64";
  88       source = "/dev/urandom";
  89     };
  90   }
  91 ];
  92 zramSwap = {
  93   enable = true;
  94   algorithm = lib.mkDefault "zstd";
  95   # There is little point creating a zram of greater
  96   # than twice the size of memory
  97   # since we expect a 2:1 compression ratio.
  98   # Note that zram uses about 0.1% of the size of the disk
  99   # when not in use so a huge zram is wasteful.
 100   memoryPercent = lib.mkDefault 150;
 101   # Linux supports multithreaded compression for 1 device since 3.15.
 102   # See https://lkml.org/lkml/2014/2/28/404 for details.
 103   swapDevices = lib.mkDefault 1;
 104 };
 105 boot.kernel.sysctl = {
 106   # Increase cache pressure, which increases the tendency of the kernel to
 107   # reclaim memory used for caching of directory and inode objects. You will use
 108   # less memory over a longer period of time. The performance hit is negated by
 109   # the downside of swapping sooner.
 110   "vm.vfs_cache_pressure" = lib.mkDefault 500;
 111
 112   # Increasing how aggressively the kernel will swap memory pages since we are
 113   # using ZRAM first.
 114   "vm.swappiness" = lib.mkDefault 100;
 115
 116   # Background processes will start writing right away when it hits the 1% limit
 117   "vm.dirty_background_ratio" = lib.mkDefault 1;
 118
 119   # The system won’t force synchronous I/O until it gets to 50% dirty_ratio.
 120   "vm.dirty_ratio" = lib.mkDefault 50;
 121 };
 122
 123 # The 32-bit host id of the host, formatted as 8 hexadecimal characters.
 124 # You should try to make this id unique among your hosts.
 125 # Manually generated with : head -c4 /dev/urandom | od -A none -t x4 | cut -d ' ' -f 2
 126 networking.hostId = "ec2adb40";
 127
 128 # none is the recommended elevator with ZFS (which has its own I/O scheduler)
 129 # and/or for SSD, whereas HDD could use mq-deadline.
 130 services.udev.extraRules = ''
 131   # set none scheduler for non-rotating disks
 132   ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="none"
 133 '';
 134
 135 boot.supportedFilesystems = [ "ntfs" "vfat" "zfs" ];
 136 boot.initrd.supportedFilesystems = [ "zfs" ];
 137 boot.initrd.availableKernelModules = [
 138   "ahci"
 139   "drbg"
 140   "ehci_pci"
 141   "gf128mul"
 142   "hmac"
 143   "sd_mod"
 144 ];
 145
 146 boot.zfs.forceImportAll  = false;
 147 boot.zfs.forceImportRoot = false;
 148 boot.zfs.enableUnstable = false;
 149 boot.zfs.requestEncryptionCredentials = [ hostName ];
 150 services.zfs.autoScrub.enable = true;
 151
 152 fileSystems."/" =
 153   { device = "${hostName}/root";
 154     fsType = "zfs";
 155   };
 156 fileSystems."/nix" =
 157   { device = "${hostName}/nix";
 158     fsType = "zfs";
 159   };
 160 fileSystems."/home/sevy" =
 161   { device = "${hostName}/home";
 162     fsType = "zfs";
 163   };
 164 fileSystems."/home/sevy/Documents" =
 165   { device = "${hostName}/home/Documents";
 166     fsType = "zfs";
 167   };
 168 fileSystems."/home/sevy/Images" =
 169   { device = "${hostName}/home/Images";
 170     fsType = "zfs";
 171   };
 172 fileSystems."/home/sevy/Téléchargements" =
 173   { device = "${hostName}/home/Downloads";
 174     fsType = "zfs";
 175   };
 176 fileSystems."/home/sevy/.thunderbird" =
 177   { device = "${hostName}/home/Mails";
 178     fsType = "zfs";
 179   };
 180 fileSystems."/home/sevy/Vidéos" =
 181   { device = "${hostName}/home/Videos";
 182     fsType = "zfs";
 183   };
 184 fileSystems."/var" =
 185   { device = "${hostName}/var";
 186     fsType = "zfs";
 187   };
 188 fileSystems."/var/cache" =
 189   { device = "${hostName}/var/cache";
 190     fsType = "zfs";
 191   };
 192 fileSystems."/var/log" =
 193   { device = "${hostName}/var/log";
 194     fsType = "zfs";
 195   };
 196 fileSystems."/var/tmp" =
 197   { device = "${hostName}/var/tmp";
 198     fsType = "zfs";
 199   };
 200
 201 }