system/devices/radxa-rock5a-server.nix

@@ -5,14 +5,12 @@
 , ... }:
 
 let
-  uuids.enc = "15945050-df48-418b-b736-827749b9262a";
+  encUuid = "15945050-df48-418b-b736-827749b9262a";
-  uuids.oldroot = "de454394-8cc1-4267-b62b-1e25062f7cf4";
+  encPart = "/dev/disk/by-uuid/${encUuid}";
-  uuids.boot = "0603-5955";
+  rootUuid = "de454394-8cc1-4267-b62b-1e25062f7cf4";
-  uuids.bch0 = "9f10b9ac-3102-4816-8f2c-e0526c2aa65b";
+  rootPart = "/dev/disk/by-uuid/${rootUuid}";
-  uuids.bch1 = "4ffed814-057c-4f9f-9a12-9d8ac6331e62";
+  bootUuid = "0603-5955";
-  uuids.bch2 = "e761df86-35ce-4586-9349-2d646fcb1b2a";
+  bootPart = "/dev/disk/by-uuid/${bootUuid}";
-  uuids.bch = "088a3d70-b54c-4437-8e01-feda6bfb7236";
-  parts = builtins.mapAttrs (k: v: "/dev/disk/by-uuid/${v}") uuids;
 in
 
 {
@@ -30,43 +28,8 @@ in
   ];
 
   networking.useDHCP = true;
-  /*
-  # as expected, systemd initrd and networking didn't work well, and i really cba to debug it
-  networking.useDHCP = false;
-  networking.useNetworkd = true;
-  systemd.network = {
-    enable = true;
-    links."10-mac" = {
-      matchConfig.OriginalName = "e*";
-      linkConfig = {
-        MACAddressPolicy = "none";
-        MACAddress = router-config.router-settings.serverMac;
-      };
-    };
-    networks."10-dhcp" = {
-      DHCP = "yes";
-      name = "e*";
-    };
-  };*/
 
   boot.initrd = {
-    /*systemd = {
-      enable = true;
-      network = {
-        enable = true;
-        links."10-mac" = {
-          matchConfig.OriginalName = "e*";
-          linkConfig = {
-            MACAddressPolicy = "none";
-            MACAddress = router-config.router-settings.serverInitrdMac;
-          };
-        };
-        networks."10-dhcp" = {
-          DHCP = "yes";
-          name = "e*";
-        };
-      };
-    };*/
     preLVMCommands = lib.mkOrder 499 ''
       ip link set eth0 address ${router-config.router-settings.serverInitrdMac} || true
     '';
@@ -85,8 +48,8 @@ in
       ];
       # shell = "/bin/cryptsetup-askpass";
     };
-    luks.devices.cryptroot = {
+    luks.devices."cryptroot" = {
-      device = parts.enc;
+      device = encPart;
       # idk whether this is needed but it works
       preLVM = true;
       # see https://asalor.blogspot.de/2011/08/trim-dm-crypt-problems.html before enabling
@@ -94,27 +57,27 @@ in
       # improve SSD performance
       bypassWorkqueues = true;
     };
-    luks.devices.bch0 = { device = parts.bch0; preLVM = true; allowDiscards = true; bypassWorkqueues = true; };
-    luks.devices.bch1 = { device = parts.bch1; preLVM = true; allowDiscards = true; bypassWorkqueues = true; };
-    luks.devices.bch2 = { device = parts.bch2; preLVM = true; allowDiscards = true; bypassWorkqueues = true; };
   };
 
   boot.supportedFilesystems = [ "bcachefs" ];
 
   fileSystems = let
+    device = rootPart;
+    fsType = "btrfs";
     neededForBoot = true;
+    compress = "compress=zstd";
+    discard = "discard=async";
   in {
     "/" =    { device = "none"; fsType = "tmpfs"; inherit neededForBoot;
                options = [ "defaults" "size=2G" "mode=755" ]; };
+    # TODO: switch to bcachefs?
+    # I wanna do it some day, but maybe starting with the next disk I get for this server
     "/persist" =
-              { device = "UUID=${uuids.bch}"; fsType = "bcachefs"; inherit neededForBoot;
+              { inherit device fsType neededForBoot;
-                options = [ "errors=ro" ]; };
+                options = [ discard compress "subvol=@" ]; };
-    #"/persist" =
+    "/swap" = { inherit device fsType neededForBoot;
-    #          { device = parts.oldroot; fsType = "btrfs"; inherit neededForBoot;
+                options = [ discard "subvol=@swap" "noatime" ]; };
-    #            options = [ "discard=async" "compress=zstd" "subvol=@" ]; };
+    "/boot" = { device = bootPart; fsType = "vfat"; inherit neededForBoot; };
-    "/swap" = { device = parts.oldroot; fsType = "btrfs"; inherit neededForBoot;
-                options = [ "discard=async" "subvol=@swap" "noatime" ]; };
-    "/boot" = { device = parts.boot; fsType = "vfat"; inherit neededForBoot; };
   };
 
   swapDevices = [ { device = "/swap/swapfile"; } ];

system/hardware/bpi-r3/pkgs.nix

@@ -117,7 +117,6 @@ in rec {
     fixupPhase = "true";
   };
   linux_bpiR3 = pkgs.linux_latest.override {
-    ignoreConfigErrors = false;
     # there's probably more enabled-by-default configs that are better left disabled, but whatever
     structuredExtraConfig = with lib.kernel; {
       /* "Select this option if you are building a kernel for a server or
@@ -126,6 +125,7 @@ in rec {
           latencies." */
       PREEMPT_NONE = yes;
       # disable the other preempts
+      PREEMPTION = no;
       PREEMPT_VOLUNTARY = lib.mkForce no;
       PREEMPT = no;
 
@@ -134,10 +134,12 @@ in rec {
       CPU_FREQ_DEFAULT_GOV_PERFORMANCE = lib.mkForce no;
       CPU_FREQ_GOV_CONSERVATIVE = yes;
       # disable virtualisation stuff
+      PARAVIRT = lib.mkForce no;
       VIRTUALIZATION = no;
       XEN = lib.mkForce no;
       # zstd
-      # MODULE_COMPRESS_ZSTD = yes;
+      KERNEL_ZSTD = yes;
+      MODULE_COMPRESS_ZSTD = yes;
       MODULE_DECOMPRESS = yes;
       FW_LOADER_COMPRESS_ZSTD = yes;
       # zram
@@ -297,50 +299,13 @@ in rec {
       MT76_CORE  = module;
       MT76_LEDS = yes;
       MT76_CONNAC_LIB = module;
+      MT7815E = module;
       MT7915E = module;
-      MT798X_WMAC = yes;
+      MT7986_WMAC = yes;
       SPI_MT65XX = yes;
       SPI_MTK_NOR = yes;
       SPI_MTK_SNFI = yes;
       MMC_MTK = yes;
-
-      # keys that are unused in this case
-      # used because i got bitten by config keys changing once
-      "9P_FSCACHE".tristate = lib.mkForce null; CROS_EC_ISHTP.tristate = lib.mkForce null; CROS_EC_LPC.tristate = lib.mkForce null;
-      DRM_AMDGPU_CIK.tristate = lib.mkForce null; DRM_AMDGPU_SI.tristate = lib.mkForce null; DRM_AMDGPU_USERPTR.tristate = lib.mkForce null;
-      DRM_AMD_DC_FP.tristate = lib.mkForce null; DRM_AMD_DC_SI.tristate = lib.mkForce null; DRM_DP_AUX_CHARDEV.tristate = lib.mkForce null;
-      DRM_FBDEV_EMULATION.tristate = lib.mkForce null; DRM_GMA500.tristate = lib.mkForce null; DRM_LEGACY.tristate = lib.mkForce null;
-      DRM_LOAD_EDID_FIRMWARE.tristate = lib.mkForce null; DRM_SIMPLEDRM.tristate = lib.mkForce null; DRM_VBOXVIDEO.tristate = lib.mkForce null;
-      DRM_VC4_HDMI_CEC.tristate = lib.mkForce null; FB_3DFX_ACCEL.tristate = lib.mkForce null; FB_ATY_CT.tristate = lib.mkForce null;
-      FB_ATY_GX.tristate = lib.mkForce null; FB_EFI.tristate = lib.mkForce null; FB_NVIDIA_I2C.tristate = lib.mkForce null;
-      FB_RIVA_I2C.tristate = lib.mkForce null; FB_SAVAGE_ACCEL.tristate = lib.mkForce null; FB_SAVAGE_I2C.tristate = lib.mkForce null;
-      FB_SIMPLE.tristate = lib.mkForce null; FB_SIS_300.tristate = lib.mkForce null; FB_SIS_315.tristate = lib.mkForce null;
-      FB_VESA.tristate = lib.mkForce null; FONTS.tristate = lib.mkForce null; FONT_8x8.tristate = lib.mkForce null;
-      FONT_TER16x32.tristate = lib.mkForce null; FRAMEBUFFER_CONSOLE.tristate = lib.mkForce null;
-      FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER.tristate = lib.mkForce null;
-      FRAMEBUFFER_CONSOLE_DETECT_PRIMARY.tristate = lib.mkForce null; FRAMEBUFFER_CONSOLE_ROTATION.tristate = lib.mkForce null;
-      HMM_MIRROR.tristate = lib.mkForce null; HSA_AMD.tristate = lib.mkForce null; HYPERVISOR_GUEST.tristate = lib.mkForce null;
-      INFINIBAND_IPOIB.tristate = lib.mkForce null; INFINIBAND_IPOIB_CM.tristate = lib.mkForce null;
-      IP_MROUTE_MULTIPLE_TABLES.tristate = lib.mkForce null; JOYSTICK_PSXPAD_SPI_FF.tristate = lib.mkForce null;
-      KERNEL_ZSTD.tristate = lib.mkForce null; KEYBOARD_APPLESPI.tristate = lib.mkForce null; KVM_ASYNC_PF.tristate = lib.mkForce null;
-      KVM_GENERIC_DIRTYLOG_READ_PROTECT.tristate = lib.mkForce null; KVM_GUEST.tristate = lib.mkForce null; KVM_MMIO.tristate = lib.mkForce null;
-      KVM_VFIO.tristate = lib.mkForce null; LOGO.tristate = lib.mkForce null; MICROCODE.tristate = lib.mkForce null;
-      MOUSE_PS2_VMMOUSE.tristate = lib.mkForce null; MTRR_SANITIZER.tristate = lib.mkForce null; NFS_FSCACHE.tristate = lib.mkForce null;
-      PINCTRL_BAYTRAIL.tristate = lib.mkForce null;
-      PINCTRL_CHERRYVIEW.tristate = lib.mkForce null; PM_ADVANCED_DEBUG.tristate = lib.mkForce null; PM_TRACE_RTC.tristate = lib.mkForce null;
-      SND_AC97_POWER_SAVE.tristate = lib.mkForce null; SND_DYNAMIC_MINORS.tristate = lib.mkForce null;
-      SND_HDA_INPUT_BEEP.tristate = lib.mkForce null; SND_HDA_PATCH_LOADER.tristate = lib.mkForce null;
-      SND_HDA_RECONFIG.tristate = lib.mkForce null; SND_OSSEMUL.tristate = lib.mkForce null; SND_USB_CAIAQ_INPUT.tristate = lib.mkForce null;
-      VFIO_PCI_VGA.tristate = lib.mkForce null; VGA_SWITCHEROO.tristate = lib.mkForce null; X86_AMD_PLATFORM_DEVICE.tristate = lib.mkForce null;
-      X86_CHECK_BIOS_CORRUPTION.tristate = lib.mkForce null; X86_MCE.tristate = lib.mkForce null;
-      X86_PLATFORM_DRIVERS_DELL.tristate = lib.mkForce null; X86_PLATFORM_DRIVERS_HP.tristate = lib.mkForce null;
-      JOYSTICK_XPAD_FF.tristate = lib.mkForce null; JOYSTICK_XPAD_LEDS.tristate = lib.mkForce null; KEXEC_JUMP.tristate = lib.mkForce null;
-      PERF_EVENTS_AMD_BRS.tristate = lib.mkForce null; HVC_XEN.tristate = lib.mkForce null; HVC_XEN_FRONTEND.tristate = lib.mkForce null;
-      PARAVIRT_SPINLOCKS.tristate = lib.mkForce null; PCI_XEN.tristate = lib.mkForce null; SWIOTLB_XEN.tristate = lib.mkForce null;
-      VBOXGUEST.tristate = lib.mkForce null; XEN_BACKEND.tristate = lib.mkForce null; XEN_BALLOON.tristate = lib.mkForce null;
-      XEN_BALLOON_MEMORY_HOTPLUG.tristate = lib.mkForce null; XEN_DOM0.tristate = lib.mkForce null; XEN_EFI.tristate = lib.mkForce null;
-      XEN_HAVE_PVMMU.tristate = lib.mkForce null; XEN_MCE_LOG.tristate = lib.mkForce null; XEN_PVH.tristate = lib.mkForce null;
-      XEN_PVHVM.tristate = lib.mkForce null; XEN_SAVE_RESTORE.tristate = lib.mkForce null; XEN_SYS_HYPERVISOR.tristate = lib.mkForce null;
     };
   };
   linuxPackages_bpiR3 = pkgs.linuxPackagesFor linux_bpiR3;

system/hosts/server/default.nix

@@ -32,6 +32,7 @@ in {
     { directory = /var/www; }
     { directory = /secrets; mode = "0755"; }
   ];
+  networking.useDHCP = true;
   networking.firewall = {
     enable = true;
     allowedTCPPorts = lib.mkMerge [

system/hosts/server/home.nix

@@ -166,6 +166,7 @@ in {
   nix.distributedBuilds = true;
   # limit CI CPU usage to 30%
   # systemd.services.nix-daemon.serviceConfig.CPUQuota = "240%";
+  # TODO: check if LimitNICE should be used instead
   systemd.services.nix-daemon.serviceConfig.Nice = "19";
   nix.daemonCPUSchedPolicy = "idle";
   nix.daemonIOSchedClass = "idle";