#compdef ethtool

local curcontext="$curcontext"
local -a state line expl cmds
local -A opt_args

_arguments -C \
  "1:interface:_net_interfaces" \
  '*: :->args' \
  + '(cmds)' \
  '(1)'{-h,--help}'[display help information]' \
  '(1)--version[display version information]' \
  {-s,--change}'[allow changing some or all settings of the specified ethernet device]' \
  {-a,--show-pause}'[query the specified ethernet device for pause parameter information]' \
  {-A,--pause}'[change the pause parameters of the specified ethernet device]' \
  {-c,--show-coalesce}'[query the specified ethernet device for coalescing information]' \
  {-C,--coalesce}'[change the coalescing settings of the specified ethernet device]' \
  {-g,--show-ring}'[query the specified ethernet device for RX/TX ring parameter information]' \
  {-G,--set-ring}'[change the RX/TX ring parameters of the specified ethernet device]' \
  {-k,--show-features,--show-offload}'[query the specified ethernet device for offload information]' \
  {-K,--features,--offload}'[change the offload parameters of the specified ethernet device]' \
  {-i,--driver}'[query the specified ethernet device for associated driver information]' \
  {-d,--register-dump}'[retrieve and prints a register dump for the specified ethernet device]' \
  {-e,--eeprom-dump}'[retrieve and prints an EEPROM dump for the specified ethernet device]' \
  {-E,--change-eeprom}'[change EEPROM byte for the specified ethernet device]' \
  {-r,--negotiate}'[restart auto-negotiation on the specified ethernet device]' \
  {-p,--identify}'[initiate adapter-specific action intended to identify the adapter by sight]' \
  {-t,--test}'[execute adapter selftest on the specified ethernet device]' \
  {-S,--statistics}'[query specified ethernet device for NIC- and driver-specific statistics]' \
  '--phy-statistics[show phy statistics]' \
  {-n,--show-nfc,-u,--show-ntuple}'[retrieve receive network flow classification options or rules]' \
  {-N,--config-nfc,-U,--config-ntuple}'[configure receive network flow classification options or rules]' \
  {-T,--show-time-stamping}"[show device's time stamping capabilities]" \
  {-x,--show-rxfh-indir,--show-rxfh}'[show Rx flow hash indirection table and/or RSS hash key]' \
  {-X,--set-rxfh-indir,--rxfh}'[set Rx flow hash indirection table and/or RSS hash key]' \
  {-f,--flash}'[flash firmware image from the specified file]' \
  {-P,--show-permaddr}'[show permanent hardware address]' \
  {-w,--get-dump}'[get dump flag, data]' \
  {-W,--set-dump}'[set device dump flag]' \
  {-l,--show-channels}'[query channels]' \
  {-L,--set-channels}'[set channels]' \
  '--show-priv-flags[query private flags]' \
  '--set-priv-flags[set private flags]' \
  {-m,--dump-module-eeprom,--module-info}'[show module EEPROM information]' \
  '--show-eee[show EEE settings]' \
  '--set-eee[set EEE settings]' \
  '--set-phy-tunable[set PHY tunable]' \
  '--get-phy-tunable[get PHY tunable]' && return

if [[ -n $state ]]; then
  case $words[CURRENT-1] in
  rx|tx)
    if (( $+opt_args[cmds--G] + $+opt_args[cmds---set-ring] )); then
      _message -e numbers 'number of ring entries'
    elif (( $+opt_args[cmds--L] + $+opt_args[cmds---set-channels] )); then
      _message -e numbers 'number of channels'
    else
      _wanted onoff expl 'enabled' compadd off on
    fi
  ;;
  autoneg|adaptive-[rt]x|raw|hex|sg|tso|ufo|gso|lro|eee|tx-lpi|downshift)
    _wanted onoff expl 'enabled' compadd off on
  ;;
  rx-usecs|rx-frames|rx-usecs-irq|rx-frames-irq|tx-usecs|tx-frames) ;&
  tx-usecs-irq|tx-frames-irq|stats-block-usecs|pkt-rate-low|rx-usecs-low) ;&
  rx-frames-low|tx-usecs-low|tx-frames-low|pkt-rate-high|rx-usecs-high) ;&
  rx-frames-high|tx-usecs-high|tx-frames-high|sample-interval|dmac|rx-mini) ;&
  rx-jumbo|offset|length|magic|value|phyad|proto|tos|tclass|l4proto|src-port) ;&
  dst-port|spi|l4data|vlan-etype|vlan|user-def|action|vf|queue|loc|delete) ;&
  other|combined|tx-timer|count)
    _message -e numbers 'number'
  ;;
  speed)
        _wanted -x speed expl 'speed' compadd 10 100 1000
  ;;
  duplex)
    _wanted duplex expl 'duplex mode' compadd half full
  ;;
  port)
    _wanted port expl 'device port' compadd tp aui bnc mii fibre
  ;;
  advertise)
    _values 'hexadecimal value (or a combination of the following)' \
      '0x001[10 half]' \
      '0x002[10 full]' \
      '0x004[100 half]' \
      '0x008[100 full]' \
      '0x010[1000 half(not supported by IEEE standards)]' \
      '0x020[1000 full]' \
      '0x8000[2500 full(not supported by IEEE standards)]' \
      '0x800[10000 full]' \
      '0x03F[auto]'
  ;;
  xcvr)
    _wanted xcvr expl 'transceiver type' compadd internal external
  ;;
  wol)
    _values -s '' 'Wake-on-LAN option' \
      '(d)p[wake on phy activity]' \
      '(d)u[wake on unicast messages]' \
      '(d)m[wake on multicast messages]' \
      '(d)b[wake on broadcast messages]' \
      '(d)a[wake on ARP]' \
      '(d)g[wake on MagicPacket(tm)]' \
      '(d)s[enable SecureOn(tm) password for MagicPacket(tm)]' \
      '(p u m b a g s)d[disable (wake on nothing)]'
  ;;
  sopass)
    _message -e secureon 'password - 6 bytes in ethernet MAC hex format (xx:yy:zz:aa:bb:cc)'
  ;;
  data|file)
    _wanted files expl 'file' _files
  ;;
  rx-flow-hash)
    _wanted flow-types expl 'flow type' compadd {tcp,udp,ah,esp,sctp}{4,6}
  ;;
  rule)
    _message -e ids 'rule id'
  ;;
  flow-type)
    _wanted flow-types expl 'flow type' compadd ether {tcp,udp,ah,esp,sctp}{4,6}
  ;;
  src|src-ip|dst|dst-ip|dst-mac)
    _message -e addresses address
  ;;
  m)
    _message -e masks mask
  ;;
  hkey)
    _message -e keys expl 'hash key'
  ;;
  hfunc)
    _message -e functions expl 'hash function'
  ;;
  *)
    case $words[2] in
    -A|--pause)
      _values -S ' ' -w 'pause parameter' \
        'autoneg[specify if pause autonegotiation is enabled]' \
        'rx[specify if RX pause is enabled]' \
        'tx[specify if TX pause is enabled]'
    ;;
    -C|--coalesce)
      _wanted settings expl 'coalescing setting' compadd -F line -M 'r:|-=* r:|=*' - \
        adaptive-{r,t}x {r,t}x-{usecs,frames}{,-irq,-high,-low} \
        stats-block-usecs pkt-rate-{low,high} sample-interval dmac
    ;;
    -G|--set-ring)
      _values -S ' ' -w 'ring parameter' \
        'rx[change number of ring entries for the RX ring]' \
        'rx-mini[change number of ring entries for the RX Mini ring]' \
        'rx-jumbo[change number of ring entries for the RX Jumbo ring]' \
        'tx[change number of ring entries for the TX ring]'
    ;;
    -d|--register-dump)
      _values -S ' ' -w 'option' \
        'hex[dump hex register data]' \
        'raw[dump raw register data]' \
        'file[use contents from file rather than device]'
    ;;
    -e|--eeprom-dump)
      _values -S ' ' -w 'option' \
        'raw[dump raw EEPROM data]' \
        'offset' 'length'
    ;;
    -E|--change-eeprom)
      _values -S ' ' -w 'option' \
        'magic[device-specific key]' \
        'offset' 'length'
        'value[new value]'
    ;;
    -K|--features|--offload)
      if (( CURRENT % 2 )); then
        _wanted values expl enable compadd on off
      else
        _wanted features expl feature compadd -F line - \
            ${${${${(f)"$(_call_program features $words[1] -k $line[1])"}%%:*}#$'\t'}[2,-1]} \
            rx tx sg tso ufo gso gro rxvlan txvlan ntuple rxhash
      fi
    ;;
    -p|--identify)
      (( CURRENT = 4 )) && _message -e length 'duration (seconds)'
    ;;
    -t|--test)
      _values -S ' ' -w 'test mode' \
        '(online)offline:perform full set of tests possibly causing normal operation interruption (default)]' \
        '(offline)online:perform limited set of tests without interrupting normal adapter operation]' \
        'external_lb[perform full set of tests plus external-loopback test]'
    ;;
    -s|--change)
      if (( ! $words[(I)msglvl] )); then
        _values -S ' ' -w 'generic option' \
          'speed[set speed in Mb/s]' \
          'duplex[set full or half duplex mode]' \
          'port[select device port]' \
          'autoneg[specify if autonegotiation is enabled]' \
          'advertise[set the speed and duplex advertised by autonegotiation]' \
          'phyad[PHY address]' \
          'xcvr[select transceiver type]' \
          'wol[set Wake-on-LAN options]' \
          'sopass[set the SecureOn(tm) password]' \
          'msglvl[set the driver message level]'
      elif (( (CURRENT - $words[(I)msglvl]) % 2 )); then
        [[ -prefix [^0-9]## ]] || _message -e numbers number
        _wanted flags expl 'message type flag' compadd drv probe link timer \
            if{down,up} rx_{err,status} tx_{err,queued,done} intr pktdata hw wol
      else
        _wanted onoff expl 'enabled' compadd off on
      fi
          ;;
    -n|-u|--show-nfc|--show-ntuple)
      _wanted options expl option compadd -F line - rx-flow-hash rule
    ;;
    -N|-U|--config-nfc|--config-ntuple)
      if [[ $words[CURRENT-2] = rx-flow-hash ]]; then
        _values -S ' ' 'rx packet hash' \
          'm[layer 2 destination address]' \
          'v[VLAN tag]' \
          't[layer 3 protocol field]' \
          's[IP source address]' \
          'd[IP destination address]' \
          'f[bytes 0 and 1 of the Layer 4 header]' \
          'n[bytes 2 and 3 of the Layer 4 header]' \
          'r[discard all packets of this flow type]'
      else
        _wanted options expl option compadd -F line - rx-flow-hash flow-type \
            delete src dst proto src-ip dst-ip tos m tclass l4proto src-port \
            dst-port spi l4data vlan-etype vlan user-def dst-mac action vf \
            queue loc
      fi
    ;;
    -X|--set-rxfh-indir|--rxfh)
      _values -S ' ' -w 'option' \
        '(weight default)equal' \
        '(equal default)weight' \
        '(equal weight)default' \
        hkey hfunc
    ;;
    -f|--flash)
      if (( CURRENT = 4 )); then
        _files
      else
        _message -e regions region
      fi
    ;;
    -w|--get-dump)
      _wanted options expl option compadd data
    ;;
    -L|--set-channels)
      _wanted options expl option compadd -F line - rx tx other combined
    ;;
    --set-priv-flags)
      if (( CURRENT % 2 )); then
        _wanted values expl enable compadd on off
      else
        _message -e flags 'private flag'
      fi
    ;;
    -m|--dump-module-eeprom|--module-info)
      _wanted options expl option compadd -F line - raw hex offset length
    ;;
    --set-eee)
      _wanted behaviours expl behaviour compadd -F line - eee advertise tx-lpi tx-timer
    ;;
    --set-phy-tunable)
      _wanted options expl tunable compadd -F line - downshift count
    ;;
    --get-phy-tunable)
      _wanted options expl tunable compadd downshift
    ;;
    esac
  ;;
  esac
fi