Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 759 insertions, 0 deletions

diff --git a/Documentation/userspace-api/media/rc/rc-tables.rst b/Documentation/userspace-api/media/rc/rc-tables.rst
new file mode 100644
index 000000000..28ed94088
--- /dev/null
+++ b/Documentation/userspace-api/media/rc/rc-tables.rst
@@ -0,0 +1,759 @@
+.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
+
+.. _Remote_controllers_tables:
+
+************************
+Remote controller tables
+************************
+
+Unfortunately, for several years, there was no effort to create uniform
+IR keycodes for different devices. This caused the same IR keyname to be
+mapped completely differently on different IR devices. This resulted
+that the same IR keyname to be mapped completely different on different
+IR's. Due to that, V4L2 API now specifies a standard for mapping Media
+keys on IR.
+
+This standard should be used by both V4L/DVB drivers and userspace
+applications
+
+The modules register the remote as keyboard within the linux input
+layer. This means that the IR key strokes will look like normal keyboard
+key strokes (if CONFIG_INPUT_KEYBOARD is enabled). Using the event
+devices (CONFIG_INPUT_EVDEV) it is possible for applications to access
+the remote via /dev/input/event devices.
+
+
+.. _rc_standard_keymap:
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.5cm}|
+
+.. flat-table:: IR default keymapping
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+
+    -  .. row 1
+
+       -  Key code
+
+       -  Meaning
+
+       -  Key examples on IR
+
+    -  .. row 2
+
+       -  **Numeric keys**
+
+    -  .. row 3
+
+       -  ``KEY_NUMERIC_0``
+
+       -  Keyboard digit 0
+
+       -  0
+
+    -  .. row 4
+
+       -  ``KEY_NUMERIC_1``
+
+       -  Keyboard digit 1
+
+       -  1
+
+    -  .. row 5
+
+       -  ``KEY_NUMERIC_2``
+
+       -  Keyboard digit 2
+
+       -  2
+
+    -  .. row 6
+
+       -  ``KEY_NUMERIC_3``
+
+       -  Keyboard digit 3
+
+       -  3
+
+    -  .. row 7
+
+       -  ``KEY_NUMERIC_4``
+
+       -  Keyboard digit 4
+
+       -  4
+
+    -  .. row 8
+
+       -  ``KEY_NUMERIC_5``
+
+       -  Keyboard digit 5
+
+       -  5
+
+    -  .. row 9
+
+       -  ``KEY_NUMERIC_6``
+
+       -  Keyboard digit 6
+
+       -  6
+
+    -  .. row 10
+
+       -  ``KEY_NUMERIC_7``
+
+       -  Keyboard digit 7
+
+       -  7
+
+    -  .. row 11
+
+       -  ``KEY_NUMERIC_8``
+
+       -  Keyboard digit 8
+
+       -  8
+
+    -  .. row 12
+
+       -  ``KEY_NUMERIC_9``
+
+       -  Keyboard digit 9
+
+       -  9
+
+    -  .. row 13
+
+       -  **Movie play control**
+
+    -  .. row 14
+
+       -  ``KEY_FORWARD``
+
+       -  Instantly advance in time
+
+       -  >> / FORWARD
+
+    -  .. row 15
+
+       -  ``KEY_BACK``
+
+       -  Instantly go back in time
+
+       -  <<< / BACK
+
+    -  .. row 16
+
+       -  ``KEY_FASTFORWARD``
+
+       -  Play movie faster
+
+       -  >>> / FORWARD
+
+    -  .. row 17
+
+       -  ``KEY_REWIND``
+
+       -  Play movie back
+
+       -  REWIND / BACKWARD
+
+    -  .. row 18
+
+       -  ``KEY_NEXT``
+
+       -  Select next chapter / sub-chapter / interval
+
+       -  NEXT / SKIP
+
+    -  .. row 19
+
+       -  ``KEY_PREVIOUS``
+
+       -  Select previous chapter / sub-chapter / interval
+
+       -  << / PREV / PREVIOUS
+
+    -  .. row 20
+
+       -  ``KEY_AGAIN``
+
+       -  Repeat the video or a video interval
+
+       -  REPEAT / LOOP / RECALL
+
+    -  .. row 21
+
+       -  ``KEY_PAUSE``
+
+       -  Pause stream
+
+       -  PAUSE / FREEZE
+
+    -  .. row 22
+
+       -  ``KEY_PLAY``
+
+       -  Play movie at the normal timeshift
+
+       -  NORMAL TIMESHIFT / LIVE / >
+
+    -  .. row 23
+
+       -  ``KEY_PLAYPAUSE``
+
+       -  Alternate between play and pause
+
+       -  PLAY / PAUSE
+
+    -  .. row 24
+
+       -  ``KEY_STOP``
+
+       -  Stop stream
+
+       -  STOP
+
+    -  .. row 25
+
+       -  ``KEY_RECORD``
+
+       -  Start/stop recording stream
+
+       -  CAPTURE / REC / RECORD/PAUSE
+
+    -  .. row 26
+
+       -  ``KEY_CAMERA``
+
+       -  Take a picture of the image
+
+       -  CAMERA ICON / CAPTURE / SNAPSHOT
+
+    -  .. row 27
+
+       -  ``KEY_SHUFFLE``
+
+       -  Enable shuffle mode
+
+       -  SHUFFLE
+
+    -  .. row 28
+
+       -  ``KEY_TIME``
+
+       -  Activate time shift mode
+
+       -  TIME SHIFT
+
+    -  .. row 29
+
+       -  ``KEY_TITLE``
+
+       -  Allow changing the chapter
+
+       -  CHAPTER
+
+    -  .. row 30
+
+       -  ``KEY_SUBTITLE``
+
+       -  Allow changing the subtitle
+
+       -  SUBTITLE
+
+    -  .. row 31
+
+       -  **Image control**
+
+    -  .. row 32
+
+       -  ``KEY_BRIGHTNESSDOWN``
+
+       -  Decrease Brightness
+
+       -  BRIGHTNESS DECREASE
+
+    -  .. row 33
+
+       -  ``KEY_BRIGHTNESSUP``
+
+       -  Increase Brightness
+
+       -  BRIGHTNESS INCREASE
+
+    -  .. row 34
+
+       -  ``KEY_ANGLE``
+
+       -  Switch video camera angle (on videos with more than one angle
+	  stored)
+
+       -  ANGLE / SWAP
+
+    -  .. row 35
+
+       -  ``KEY_EPG``
+
+       -  Open the Elecrowonic Play Guide (EPG)
+
+       -  EPG / GUIDE
+
+    -  .. row 36
+
+       -  ``KEY_TEXT``
+
+       -  Activate/change closed caption mode
+
+       -  CLOSED CAPTION/TELETEXT / DVD TEXT / TELETEXT / TTX
+
+    -  .. row 37
+
+       -  **Audio control**
+
+    -  .. row 38
+
+       -  ``KEY_AUDIO``
+
+       -  Change audio source
+
+       -  AUDIO SOURCE / AUDIO / MUSIC
+
+    -  .. row 39
+
+       -  ``KEY_MUTE``
+
+       -  Mute/unmute audio
+
+       -  MUTE / DEMUTE / UNMUTE
+
+    -  .. row 40
+
+       -  ``KEY_VOLUMEDOWN``
+
+       -  Decrease volume
+
+       -  VOLUME- / VOLUME DOWN
+
+    -  .. row 41
+
+       -  ``KEY_VOLUMEUP``
+
+       -  Increase volume
+
+       -  VOLUME+ / VOLUME UP
+
+    -  .. row 42
+
+       -  ``KEY_MODE``
+
+       -  Change sound mode
+
+       -  MONO/STEREO
+
+    -  .. row 43
+
+       -  ``KEY_LANGUAGE``
+
+       -  Select Language
+
+       -  1ST / 2ND LANGUAGE / DVD LANG / MTS/SAP / MTS SEL
+
+    -  .. row 44
+
+       -  **Channel control**
+
+    -  .. row 45
+
+       -  ``KEY_CHANNEL``
+
+       -  Go to the next favorite channel
+
+       -  ALT / CHANNEL / CH SURFING / SURF / FAV
+
+    -  .. row 46
+
+       -  ``KEY_CHANNELDOWN``
+
+       -  Decrease channel sequentially
+
+       -  CHANNEL - / CHANNEL DOWN / DOWN
+
+    -  .. row 47
+
+       -  ``KEY_CHANNELUP``
+
+       -  Increase channel sequentially
+
+       -  CHANNEL + / CHANNEL UP / UP
+
+    -  .. row 48
+
+       -  ``KEY_DIGITS``
+
+       -  Use more than one digit for channel
+
+       -  PLUS / 100/ 1xx / xxx / -/-- / Single Double Triple Digit
+
+    -  .. row 49
+
+       -  ``KEY_SEARCH``
+
+       -  Start channel autoscan
+
+       -  SCAN / AUTOSCAN
+
+    -  .. row 50
+
+       -  **Colored keys**
+
+    -  .. row 51
+
+       -  ``KEY_BLUE``
+
+       -  IR Blue key
+
+       -  BLUE
+
+    -  .. row 52
+
+       -  ``KEY_GREEN``
+
+       -  IR Green Key
+
+       -  GREEN
+
+    -  .. row 53
+
+       -  ``KEY_RED``
+
+       -  IR Red key
+
+       -  RED
+
+    -  .. row 54
+
+       -  ``KEY_YELLOW``
+
+       -  IR Yellow key
+
+       -  YELLOW
+
+    -  .. row 55
+
+       -  **Media selection**
+
+    -  .. row 56
+
+       -  ``KEY_CD``
+
+       -  Change input source to Compact Disc
+
+       -  CD
+
+    -  .. row 57
+
+       -  ``KEY_DVD``
+
+       -  Change input to DVD
+
+       -  DVD / DVD MENU
+
+    -  .. row 58
+
+       -  ``KEY_EJECTCLOSECD``
+
+       -  Open/close the CD/DVD player
+
+       -  -> ) / CLOSE / OPEN
+
+    -  .. row 59
+
+       -  ``KEY_MEDIA``
+
+       -  Turn on/off Media application
+
+       -  PC/TV / TURN ON/OFF APP
+
+    -  .. row 60
+
+       -  ``KEY_PC``
+
+       -  Selects from TV to PC
+
+       -  PC
+
+    -  .. row 61
+
+       -  ``KEY_RADIO``
+
+       -  Put into AM/FM radio mode
+
+       -  RADIO / TV/FM / TV/RADIO / FM / FM/RADIO
+
+    -  .. row 62
+
+       -  ``KEY_TV``
+
+       -  Select tv mode
+
+       -  TV / LIVE TV
+
+    -  .. row 63
+
+       -  ``KEY_TV2``
+
+       -  Select Cable mode
+
+       -  AIR/CBL
+
+    -  .. row 64
+
+       -  ``KEY_VCR``
+
+       -  Select VCR mode
+
+       -  VCR MODE / DTR
+
+    -  .. row 65
+
+       -  ``KEY_VIDEO``
+
+       -  Alternate between input modes
+
+       -  SOURCE / SELECT / DISPLAY / SWITCH INPUTS / VIDEO
+
+    -  .. row 66
+
+       -  **Power control**
+
+    -  .. row 67
+
+       -  ``KEY_POWER``
+
+       -  Turn on/off computer
+
+       -  SYSTEM POWER / COMPUTER POWER
+
+    -  .. row 68
+
+       -  ``KEY_POWER2``
+
+       -  Turn on/off application
+
+       -  TV ON/OFF / POWER
+
+    -  .. row 69
+
+       -  ``KEY_SLEEP``
+
+       -  Activate sleep timer
+
+       -  SLEEP / SLEEP TIMER
+
+    -  .. row 70
+
+       -  ``KEY_SUSPEND``
+
+       -  Put computer into suspend mode
+
+       -  STANDBY / SUSPEND
+
+    -  .. row 71
+
+       -  **Window control**
+
+    -  .. row 72
+
+       -  ``KEY_CLEAR``
+
+       -  Stop stream and return to default input video/audio
+
+       -  CLEAR / RESET / BOSS KEY
+
+    -  .. row 73
+
+       -  ``KEY_CYCLEWINDOWS``
+
+       -  Minimize windows and move to the next one
+
+       -  ALT-TAB / MINIMIZE / DESKTOP
+
+    -  .. row 74
+
+       -  ``KEY_FAVORITES``
+
+       -  Open the favorites stream window
+
+       -  TV WALL / Favorites
+
+    -  .. row 75
+
+       -  ``KEY_MENU``
+
+       -  Call application menu
+
+       -  2ND CONTROLS (USA: MENU) / DVD/MENU / SHOW/HIDE CTRL
+
+    -  .. row 76
+
+       -  ``KEY_NEW``
+
+       -  Open/Close Picture in Picture
+
+       -  PIP
+
+    -  .. row 77
+
+       -  ``KEY_OK``
+
+       -  Send a confirmation code to application
+
+       -  OK / ENTER / RETURN
+
+    -  .. row 78
+
+       -  ``KEY_ASPECT_RATIO``
+
+       -  Select screen aspect ratio
+
+       -  4:3 16:9 SELECT
+
+    -  .. row 79
+
+       -  ``KEY_FULL_SCREEN``
+
+       -  Put device into zoom/full screen mode
+
+       -  ZOOM / FULL SCREEN / ZOOM+ / HIDE PANNEL / SWITCH
+
+    -  .. row 80
+
+       -  **Navigation keys**
+
+    -  .. row 81
+
+       -  ``KEY_ESC``
+
+       -  Cancel current operation
+
+       -  CANCEL / BACK
+
+    -  .. row 82
+
+       -  ``KEY_HELP``
+
+       -  Open a Help window
+
+       -  HELP
+
+    -  .. row 83
+
+       -  ``KEY_HOMEPAGE``
+
+       -  Navigate to Homepage
+
+       -  HOME
+
+    -  .. row 84
+
+       -  ``KEY_INFO``
+
+       -  Open On Screen Display
+
+       -  DISPLAY INFORMATION / OSD
+
+    -  .. row 85
+
+       -  ``KEY_WWW``
+
+       -  Open the default browser
+
+       -  WEB
+
+    -  .. row 86
+
+       -  ``KEY_UP``
+
+       -  Up key
+
+       -  UP
+
+    -  .. row 87
+
+       -  ``KEY_DOWN``
+
+       -  Down key
+
+       -  DOWN
+
+    -  .. row 88
+
+       -  ``KEY_LEFT``
+
+       -  Left key
+
+       -  LEFT
+
+    -  .. row 89
+
+       -  ``KEY_RIGHT``
+
+       -  Right key
+
+       -  RIGHT
+
+    -  .. row 90
+
+       -  **Miscellaneous keys**
+
+    -  .. row 91
+
+       -  ``KEY_DOT``
+
+       -  Return a dot
+
+       -  .
+
+    -  .. row 92
+
+       -  ``KEY_FN``
+
+       -  Select a function
+
+       -  FUNCTION
+
+
+It should be noted that, sometimes, there some fundamental missing keys
+at some cheaper IR's. Due to that, it is recommended to:
+
+
+.. _rc_keymap_notes:
+
+.. flat-table:: Notes
+    :header-rows:  0
+    :stub-columns: 0
+
+
+    -  .. row 1
+
+       -  On simpler IR's, without separate channel keys, you need to map UP
+	  as ``KEY_CHANNELUP``
+
+    -  .. row 2
+
+       -  On simpler IR's, without separate channel keys, you need to map
+	  DOWN as ``KEY_CHANNELDOWN``
+
+    -  .. row 3
+
+       -  On simpler IR's, without separate volume keys, you need to map
+	  LEFT as ``KEY_VOLUMEDOWN``
+
+    -  .. row 4
+
+       -  On simpler IR's, without separate volume keys, you need to map
+	  RIGHT as ``KEY_VOLUMEUP``