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   # FIXME: uncomment when updating to 21.05
  14   levels = ''
  15     (0,     0,      57)
  16     (1,     56,     62)
  17     (2,     61,     65)
  18     (3,     64,     66)
  19     (4,     65,     68)
  20     (5,     67,     71)
  21     (6,     70,     76)
  22     (7,     75,     81)
  23     (127,   80,     32767)
  24   '';
  25   /*
  26   levels = [
  27     [0     0      57]
  28     [1     56     62]
  29     [2     61     65]
  30     [3     64     66]
  31     [4     65     68]
  32     [5     67     71]
  33     [6     70     76]
  34     [7     75     81]
  35     [127   80     32767]
  36   ];
  37   */
  38 };
  39
  40 # https://bugzilla.kernel.org/show_bug.cgi?id=110941
  41 boot.kernelParams = [ "intel_pstate=no_hwp" ];
  42 boot.kernelModules = [ "kvm-intel" ];
  43 boot.cleanTmpDir = true;
  44 boot.tmpOnTmpfs = true;
  45 boot.extraModulePackages = [
  46   config.boot.kernelPackages.exfat-nofuse
  47 ];
  48 boot.loader.grub = {
  49   enable  = true;
  50   version = 2;
  51   device  = "/dev/disk/by-id/ata-CT250MX500SSD1_2004E2849DD1";
  52   configurationLimit = 3;
  53   #zfsSupport = true;
  54   /*
  55   efiSupport = true;
  56   efi = {
  57     canTouchEfiVariables = false;
  58     efiSysMountPoint = "/boot/efi";
  59   };
  60   */
  61   #enableCryptodisk = true;
  62 };
  63 services.acpid = {
  64   enable = true;
  65   handlers = {
  66     brightnessDown = {
  67       event = "video/brightnessdown.*";
  68       action = "${pkgs.acpilight}/bin/xbacklight -dec 10";
  69     };
  70     brightnessUp = {
  71       event = "video/brightnessup.*";
  72       action = "${pkgs.acpilight}/bin/xbacklight -inc 10";
  73     };
  74     acAdapter = {
  75       event = "ac_adapter/*";
  76       action = ''
  77         vals=($1)
  78         case ''${vals[3]} in
  79           00000000) # unplugged
  80             ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g powersave;;
  81           00000001) # plugged in
  82             ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g ondemand;;
  83         esac
  84       '';
  85     };
  86   };
  87 };
  88
  89 fileSystems."/boot" =
  90   { device = "/dev/disk/by-partlabel/${hostName}_ssd_boot";
  91     fsType = "ext2";
  92   };
  93 fileSystems."/boot/efi" =
  94   { device = "/dev/disk/by-partlabel/${hostName}_ssd_efi";
  95     fsType = "vfat";
  96   };
  97 swapDevices = [
  98   { device = "/dev/disk/by-partlabel/${hostName}_ssd_swap";
  99     randomEncryption = {
 100       enable = true;
 101       cipher = "aes-xts-plain64";
 102       source = "/dev/urandom";
 103     };
 104   }
 105 ];
 106 zramSwap = {
 107   enable = true;
 108   algorithm = lib.mkDefault "zstd";
 109   # There is little point creating a zram of greater
 110   # than twice the size of memory
 111   # since we expect a 2:1 compression ratio.
 112   # Note that zram uses about 0.1% of the size of the disk
 113   # when not in use so a huge zram is wasteful.
 114   memoryPercent = lib.mkDefault 150;
 115   # Linux supports multithreaded compression for 1 device since 3.15.
 116   # See https://lkml.org/lkml/2014/2/28/404 for details.
 117   swapDevices = lib.mkDefault 1;
 118 };
 119 boot.kernel.sysctl = {
 120   # Increase cache pressure, which increases the tendency of the kernel to
 121   # reclaim memory used for caching of directory and inode objects. You will use
 122   # less memory over a longer period of time. The performance hit is negated by
 123   # the downside of swapping sooner.
 124   "vm.vfs_cache_pressure" = lib.mkDefault 500;
 125
 126   # Increasing how aggressively the kernel will swap memory pages since we are
 127   # using ZRAM first.
 128   "vm.swappiness" = lib.mkDefault 100;
 129
 130   # Background processes will start writing right away when it hits the 1% limit
 131   "vm.dirty_background_ratio" = lib.mkDefault 1;
 132
 133   # The system won’t force synchronous I/O until it gets to 50% dirty_ratio.
 134   "vm.dirty_ratio" = lib.mkDefault 50;
 135 };
 136
 137 # The 32-bit host id of the host, formatted as 8 hexadecimal characters.
 138 # You should try to make this id unique among your hosts.
 139 # Manually generated with : head -c4 /dev/urandom | od -A none -t x4 | cut -d ' ' -f 2
 140 networking.hostId = "ec2adb40";
 141
 142 # none is the recommended elevator with ZFS (which has its own I/O scheduler)
 143 # and/or for SSD, whereas HDD could use mq-deadline.
 144 services.udev.extraRules = ''
 145   # set none scheduler for non-rotating disks
 146   ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="none"
 147 '';
 148
 149 boot.supportedFilesystems = [ "ntfs" "vfat" "zfs" ];
 150 boot.initrd.supportedFilesystems = [ "zfs" ];
 151 boot.initrd.availableKernelModules = [
 152   "ahci"
 153   "drbg"
 154   "ehci_pci"
 155   "gf128mul"
 156   "hmac"
 157   "sd_mod"
 158 ];
 159
 160 boot.zfs.forceImportAll  = false;
 161 boot.zfs.forceImportRoot = false;
 162 boot.zfs.enableUnstable = false;
 163 boot.zfs.requestEncryptionCredentials = [ hostName ];
 164 services.zfs.autoScrub.enable = true;
 165
 166 fileSystems."/" =
 167   { device = "${hostName}/root";
 168     fsType = "zfs";
 169   };
 170 fileSystems."/nix" =
 171   { device = "${hostName}/nix";
 172     fsType = "zfs";
 173   };
 174 fileSystems."/home/sevy" =
 175   { device = "${hostName}/home";
 176     fsType = "zfs";
 177   };
 178 fileSystems."/home/sevy/Documents" =
 179   { device = "${hostName}/home/Documents";
 180     fsType = "zfs";
 181   };
 182 fileSystems."/home/sevy/Images" =
 183   { device = "${hostName}/home/Images";
 184     fsType = "zfs";
 185   };
 186 fileSystems."/home/sevy/Téléchargements" =
 187   { device = "${hostName}/home/Downloads";
 188     fsType = "zfs";
 189   };
 190 fileSystems."/home/sevy/.thunderbird" =
 191   { device = "${hostName}/home/Mails";
 192     fsType = "zfs";
 193   };
 194 fileSystems."/home/sevy/Vidéos" =
 195   { device = "${hostName}/home/Videos";
 196     fsType = "zfs";
 197   };
 198 fileSystems."/var" =
 199   { device = "${hostName}/var";
 200     fsType = "zfs";
 201   };
 202 fileSystems."/var/cache" =
 203   { device = "${hostName}/var/cache";
 204     fsType = "zfs";
 205   };
 206 fileSystems."/var/log" =
 207   { device = "${hostName}/var/log";
 208     fsType = "zfs";
 209   };
 210 fileSystems."/var/tmp" =
 211   { device = "${hostName}/var/tmp";
 212     fsType = "zfs";
 213   };
 214
 215 }