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   };
  61   acEventCommands = ''
  62     vals=($1)
  63     case ''${vals[3]} in
  64       00000000) # unplugged
  65         ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g powersave;;
  66       00000001) # plugged in
  67         ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g ondemand;;
  68     esac
  69   '';
  70 };
  71
  72 fileSystems."/boot" =
  73   { device = "/dev/disk/by-partlabel/${hostName}_ssd_boot";
  74     fsType = "ext2";
  75   };
  76 fileSystems."/boot/efi" =
  77   { device = "/dev/disk/by-partlabel/${hostName}_ssd_efi";
  78     fsType = "vfat";
  79   };
  80 swapDevices = [
  81   { device = "/dev/disk/by-partlabel/${hostName}_ssd_swap";
  82     randomEncryption = {
  83       enable = true;
  84       cipher = "aes-xts-plain64";
  85       source = "/dev/urandom";
  86     };
  87   }
  88 ];
  89 zramSwap = {
  90   enable = true;
  91   algorithm = lib.mkDefault "zstd";
  92   # There is little point creating a zram of greater
  93   # than twice the size of memory
  94   # since we expect a 2:1 compression ratio.
  95   # Note that zram uses about 0.1% of the size of the disk
  96   # when not in use so a huge zram is wasteful.
  97   memoryPercent = lib.mkDefault 150;
  98   # Linux supports multithreaded compression for 1 device since 3.15.
  99   # See https://lkml.org/lkml/2014/2/28/404 for details.
 100   swapDevices = lib.mkDefault 1;
 101 };
 102 boot.kernel.sysctl = {
 103   # Increase cache pressure, which increases the tendency of the kernel to
 104   # reclaim memory used for caching of directory and inode objects. You will use
 105   # less memory over a longer period of time. The performance hit is negated by
 106   # the downside of swapping sooner.
 107   "vm.vfs_cache_pressure" = lib.mkDefault 500;
 108
 109   # Increasing how aggressively the kernel will swap memory pages since we are
 110   # using ZRAM first.
 111   "vm.swappiness" = lib.mkDefault 100;
 112
 113   # Background processes will start writing right away when it hits the 1% limit
 114   "vm.dirty_background_ratio" = lib.mkDefault 1;
 115
 116   # The system won’t force synchronous I/O until it gets to 50% dirty_ratio.
 117   "vm.dirty_ratio" = lib.mkDefault 50;
 118 };
 119
 120 # The 32-bit host id of the host, formatted as 8 hexadecimal characters.
 121 # You should try to make this id unique among your hosts.
 122 # Manually generated with : head -c4 /dev/urandom | od -A none -t x4 | cut -d ' ' -f 2
 123 networking.hostId = "ec2adb40";
 124
 125 # none is the recommended elevator with ZFS (which has its own I/O scheduler)
 126 # and/or for SSD, whereas HDD could use mq-deadline.
 127 services.udev.extraRules = ''
 128   # set none scheduler for non-rotating disks
 129   ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="none"
 130 '';
 131
 132 boot.supportedFilesystems = [ "ntfs" "vfat" "zfs" ];
 133 boot.initrd.supportedFilesystems = [ "zfs" ];
 134 boot.initrd.availableKernelModules = [
 135   "ahci"
 136   "drbg"
 137   "ehci_pci"
 138   "gf128mul"
 139   "hmac"
 140   "sd_mod"
 141 ];
 142
 143 boot.zfs.forceImportAll  = false;
 144 boot.zfs.forceImportRoot = false;
 145 boot.zfs.enableUnstable = false;
 146 boot.zfs.requestEncryptionCredentials = [ hostName ];
 147 services.zfs.autoScrub.enable = true;
 148
 149 fileSystems."/" =
 150   { device = "${hostName}/root";
 151     fsType = "zfs";
 152   };
 153 fileSystems."/nix" =
 154   { device = "${hostName}/nix";
 155     fsType = "zfs";
 156   };
 157 fileSystems."/home/sevy" =
 158   { device = "${hostName}/home";
 159     fsType = "zfs";
 160   };
 161 fileSystems."/home/sevy/Documents" =
 162   { device = "${hostName}/home/Documents";
 163     fsType = "zfs";
 164   };
 165 fileSystems."/home/sevy/Images" =
 166   { device = "${hostName}/home/Images";
 167     fsType = "zfs";
 168   };
 169 fileSystems."/home/sevy/Téléchargements" =
 170   { device = "${hostName}/home/Downloads";
 171     fsType = "zfs";
 172   };
 173 fileSystems."/home/sevy/.thunderbird" =
 174   { device = "${hostName}/home/Mails";
 175     fsType = "zfs";
 176   };
 177 fileSystems."/home/sevy/Vidéos" =
 178   { device = "${hostName}/home/Videos";
 179     fsType = "zfs";
 180   };
 181 fileSystems."/var" =
 182   { device = "${hostName}/var";
 183     fsType = "zfs";
 184   };
 185 fileSystems."/var/cache" =
 186   { device = "${hostName}/var/cache";
 187     fsType = "zfs";
 188   };
 189 fileSystems."/var/log" =
 190   { device = "${hostName}/var/log";
 191     fsType = "zfs";
 192   };
 193 fileSystems."/var/tmp" =
 194   { device = "${hostName}/var/tmp";
 195     fsType = "zfs";
 196   };
 197
 198 }