{"id":3376,"date":"2022-12-20T17:02:30","date_gmt":"2022-12-20T20:02:30","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/ethtool-man8\/"},"modified":"2022-12-20T17:02:30","modified_gmt":"2022-12-20T20:02:30","slug":"ethtool-man8","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/ethtool-man8\/","title":{"rendered":"ETHTOOL (man8)"},"content":{"rendered":"

ETHTOOL<\/h1>\n

NAME<\/a>
SYNOPSIS<\/a>
DESCRIPTION<\/a>
OPTIONS<\/a>
BUGS<\/a>
AUTHOR<\/a>
AVAILABILITY<\/a> <\/p>\n

\n

NAME <\/a> <\/h2>\n

ethtool \u2212 query or control network driver and hardware settings<\/p>\n

SYNOPSIS <\/a> <\/h2>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

\u2212h|\u2212\u2212help<\/b><\/p>\n

ethtool \u2212\u2212version<\/b><\/p>\n

ethtool<\/b><\/p>\n

[–debug\u00a0<\/b>N<\/i>] args<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool [–json]<\/b><\/p>\n<\/td>\n

<\/td>\n\n

args<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool [-I |<\/b><\/p>\n<\/td>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

–include-statistics]<\/b> args<\/i><\/p>\n

ethtool \u2212\u2212monitor<\/b> [ command<\/i> ] [ devname<\/i> ]<\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\u2212a|\u2212\u2212show\u2212pause<\/b> devname<\/i><\/p>\n

ethtool \u2212A|\u2212\u2212pause<\/b> devname<\/i> [autoneg\u00a0on<\/b>|off<\/b>] [rx\u00a0on<\/b>|off<\/b>] [tx\u00a0on<\/b>|off<\/b>]<\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\u2212c|\u2212\u2212show\u2212coalesce<\/b> devname<\/i><\/p>\n

ethtool \u2212C|\u2212\u2212coalesce<\/b> devname<\/i> [adaptive\u2212rx\u00a0on<\/b>|off<\/b>] [adaptive\u2212tx\u00a0on<\/b>|off<\/b>]<\/p>\n

[rx\u2212usecs\u00a0<\/b>N<\/i>] [rx\u2212frames\u00a0<\/b>N<\/i>] [rx\u2212usecs\u2212irq\u00a0<\/b>N<\/i>] [rx\u2212frames\u2212irq\u00a0<\/b>N<\/i>] [tx\u2212usecs\u00a0<\/b>N<\/i>] [tx\u2212frames\u00a0<\/b>N<\/i>] [tx\u2212usecs\u2212irq\u00a0<\/b>N<\/i>] [tx\u2212frames\u2212irq\u00a0<\/b>N<\/i>] [stats\u2212block\u2212usecs\u00a0<\/b>N<\/i>] [pkt\u2212rate\u2212low\u00a0<\/b>N<\/i>] [rx\u2212usecs\u2212low\u00a0<\/b>N<\/i>] [rx\u2212frames\u2212low\u00a0<\/b>N<\/i>] [tx\u2212usecs\u2212low\u00a0<\/b>N<\/i>] [tx\u2212frames\u2212low\u00a0<\/b>N<\/i>] [pkt\u2212rate\u2212high\u00a0<\/b>N<\/i>] [rx\u2212usecs\u2212high\u00a0<\/b>N<\/i>] [rx\u2212frames\u2212high\u00a0<\/b>N<\/i>] [tx\u2212usecs\u2212high\u00a0<\/b>N<\/i>] [tx\u2212frames\u2212high\u00a0<\/b>N<\/i>] [sample\u2212interval\u00a0<\/b>N<\/i>] [cqe\u2212mode\u2212rx\u00a0on<\/b>|off<\/b>] [cqe\u2212mode\u2212tx\u00a0on<\/b>|off<\/b>]<\/p>\n\n\n\n\n
<\/td>\n\n

ethtool \u2212g|\u2212\u2212show\u2212ring<\/b><\/p>\n<\/td>\n

\n

devname<\/i><\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

ethtool \u2212G|\u2212\u2212set\u2212ring<\/b><\/p>\n<\/td>\n

\n

devname<\/i> [rx\u00a0<\/b>N<\/i>] [rx\u2212mini\u00a0<\/b>N<\/i>] [rx\u2212jumbo\u00a0<\/b>N<\/i>] [tx\u00a0<\/b>N<\/i>]<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

ethtool \u2212i|\u2212\u2212driver<\/b><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

devname<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool \u2212d|\u2212\u2212register\u2212dump<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [raw\u00a0on<\/b>|off<\/b>] [hex\u00a0on<\/b>|off<\/b>] [file<\/b><\/p>\n<\/td>\n<\/tr>\n<\/table>\n

name<\/i>]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212e|\u2212\u2212eeprom\u2212dump<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [raw\u00a0on<\/b>|off<\/b>] [offset\u00a0<\/b>N<\/i>] [length\u00a0<\/b>N<\/i>]<\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

\u2212E|\u2212\u2212change\u2212eeprom<\/b> devname<\/i> [magic\u00a0<\/b>N<\/i>] [offset\u00a0<\/b>N<\/i>] [length\u00a0<\/b>N<\/i>] [value\u00a0<\/b>N<\/i>]<\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\u2212k|\u2212\u2212show\u2212features|\u2212\u2212show\u2212offload<\/b> devname<\/i><\/p>\n

ethtool \u2212K|\u2212\u2212features|\u2212\u2212offload<\/b> devname feature<\/i> on<\/b>|off<\/b> …<\/p>\n

ethtool \u2212p|\u2212\u2212identify<\/b><\/p>\n

devname<\/i> [N<\/i>]<\/p>\n\n\n\n
<\/td>\n\n

ethtool \u2212P|\u2212\u2212show\u2212permaddr<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

ethtool \u2212r|\u2212\u2212negotiate<\/b><\/p>\n<\/td>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

devname<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool \u2212S|\u2212\u2212statistics<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [\u2212\u2212all\u2212groups<\/b>|\u2212\u2212groups<\/b> [eth\u2212phy<\/b>]<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

[eth\u2212mac<\/b>] [eth\u2212ctrl<\/b>] ]<\/p>\n\n\n\n
<\/td>\n\n

ethtool \u2212\u2212phy\u2212statistics<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

ethtool \u2212t|\u2212\u2212test<\/b><\/p>\n<\/td>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

devname<\/i> [offline<\/b>|online<\/b>|external_lb<\/b>]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212s<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [speed\u00a0<\/b>N<\/i>] [lanes\u00a0<\/b>N<\/i>] [duplex\u00a0half<\/b>|full<\/b>]<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

[port\u00a0tp<\/b>|aui<\/b>|bnc<\/b>|mii<\/b>] [mdix\u00a0auto<\/b>|on<\/b>|off<\/b>] [autoneg\u00a0on<\/b>|off<\/b>] [advertise\u00a0<\/b>N<\/i>[\/<\/b>M<\/i>] | advertise\u00a0<\/b>mode<\/i> on<\/b>|off<\/b> …] [phyad\u00a0<\/b>N<\/i>] [xcvr\u00a0internal<\/b>|external<\/b>] [wol\u00a0<\/b>N<\/i>[\/<\/b>M<\/i>] |\u00a0wol\u00a0p<\/b>|u<\/b>|m<\/b>|b<\/b>|a<\/b>|g<\/b>|s<\/b>|f|d…]<\/b> [sopass\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>] [master-slave\u00a0preferred-master<\/b>|preferred-slave<\/b>|forced-master<\/b>|forced-slave<\/b>] [msglvl<\/b> N<\/i>[\/M<\/i>]\u00a0| msglvl\u00a0<\/b>type<\/i> on<\/b>|off<\/b> …]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212n|\u2212u|\u2212\u2212show\u2212nfc|\u2212\u2212show\u2212ntuple<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

[\u00a0rx\u2212flow\u2212hash\u00a0tcp4<\/b>|udp4<\/b>|ah4<\/b>|esp4<\/b>|sctp4<\/b>|tcp6<\/b>|udp6<\/b>|ah6<\/b>|esp6<\/b>|sctp6\u00a0|<\/b><\/p>\n

rule\u00a0<\/b>N<\/i> ]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212N|\u2212U|\u2212\u2212config\u2212nfc|\u2212\u2212config\u2212ntuple<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

rx\u2212flow\u2212hash\u00a0tcp4<\/b>|udp4<\/b>|ah4<\/b>|esp4<\/b>|sctp4<\/b>|tcp6<\/b>|udp6<\/b>|ah6<\/b>|esp6<\/b>|sctp6\u00a0 m<\/b>|v<\/b>|t<\/b>|s<\/b>|d<\/b>|f<\/b>|n<\/b>|r<\/b>…\u00a0|<\/b><\/p>\n

flow\u2212type ether|ip4|tcp4|udp4|sctp4|ah4|esp4|ip6|tcp6|udp6|ah6|esp6|sctp6<\/b> [src\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc\u00a0<\/i>[m\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>]] [dst\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc\u00a0<\/i>[m\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>]] [proto\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [src\u2212ip\u00a0<\/b>ip-address\u00a0<\/i>[m\u00a0<\/b>ip-address<\/i>]] [dst\u2212ip\u00a0<\/b>ip-address\u00a0<\/i>[m\u00a0<\/b>ip-address<\/i>]] [tos\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [tclass\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [l4proto\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [src\u2212port\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [dst\u2212port\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [spi\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [l4data\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [vlan\u2212etype\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [vlan\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [user\u2212def\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]] [dst-mac\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc\u00a0<\/i>[m\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>]] [action\u00a0<\/b>N<\/i>] [context\u00a0<\/b>N<\/i>] [loc\u00a0<\/b>N<\/i>] |
delete\u00a0<\/b>N<\/i><\/p>\n\n\n\n
<\/td>\n\n

ethtool \u2212w|\u2212\u2212get\u2212dump<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [data<\/b> filename<\/i>]<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

ethtool\u00a0\u2212W|\u2212\u2212set\u2212dump<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname N<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\u2212T|\u2212\u2212show\u2212time\u2212stamping<\/b> devname<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\u2212x|\u2212\u2212show\u2212rxfh\u2212indir|\u2212\u2212show\u2212rxfh<\/b> devname<\/i><\/p>\n

ethtool \u2212X|\u2212\u2212set\u2212rxfh\u2212indir|\u2212\u2212rxfh<\/b> devname<\/i> [hkey\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>:…]<\/p>\n

[start<\/b> N<\/i>] [\u00a0equal<\/b> N\u00a0<\/i>| weight\u00a0<\/b>W0 W1<\/i> …\u00a0|\u00a0default\u00a0<\/b>] [hfunc<\/b> FUNC<\/i>] [context<\/b> CTX<\/i> |\u00a0new<\/b>] [delete<\/b>]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212f|\u2212\u2212flash<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname file<\/i> [N<\/i>]<\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\u2212l|\u2212\u2212show\u2212channels<\/b> devname<\/i><\/p>\n

ethtool \u2212L|\u2212\u2212set\u2212channels<\/b> devname<\/i> [rx\u00a0<\/b>N<\/i>] [tx\u00a0<\/b>N<\/i>] [other\u00a0<\/b>N<\/i>] [combined\u00a0<\/b>N<\/i>]<\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

\u2212m|\u2212\u2212dump\u2212module\u2212eeprom|\u2212\u2212module\u2212info<\/b> devname<\/i> [raw\u00a0on<\/b>|off<\/b>] [hex\u00a0on<\/b>|off<\/b>] [offset\u00a0<\/b>N<\/i>] [length\u00a0<\/b>N<\/i>] [page\u00a0<\/b>N<\/i>] [bank\u00a0<\/b>N<\/i>] [i2c\u00a0<\/b>N<\/i>]<\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\u2212\u2212show\u2212priv\u2212flags<\/b> devname<\/i><\/p>\n

ethtool \u2212\u2212set\u2212priv\u2212flags<\/b> devname flag<\/i> on<\/b>|off<\/b> …<\/p>\n

ethtool \u2212\u2212show\u2212eee<\/b><\/p>\n

devname<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool \u2212\u2212set\u2212eee<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [eee\u00a0on<\/b>|off<\/b>] [tx-lpi\u00a0on<\/b>|off<\/b>] [tx-timer\u00a0<\/b>N<\/i>]<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

[advertise\u00a0<\/b>N<\/i>]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212\u2212set\u2212phy\u2212tunable<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [ downshift on<\/b>|off<\/b> [count\u00a0<\/b>N<\/i>] ] [<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

fast\u2212link\u2212down on<\/b>|off<\/b> [msecs\u00a0<\/b>N<\/i>] ] [ energy\u2212detect\u2212power\u2212down on<\/b>|off<\/b> [msecs\u00a0<\/b>N<\/i>] ]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212\u2212get\u2212phy\u2212tunable<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [downshift<\/b>] [fast-link-down<\/b>]<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

[energy-detect-power-down<\/b>]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212\u2212get\u2212tunable<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [rx-copybreak<\/b>] [tx-copybreak<\/b>]<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

[pfc-prevention-tout<\/b>]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212\u2212set\u2212tunable<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [rx\u2212copybreak\u00a0<\/b>N<\/i>] [tx\u2212copybreak\u00a0<\/b>N<\/i>]<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

[pfc\u2212prevention\u2212tout\u00a0<\/b>N<\/i>]<\/p>\n\n\n
<\/td>\n\n

ethtool \u2212\u2212reset<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i> [flags\u00a0<\/b>N<\/i>] [mgmt<\/b>] [mgmt-shared<\/b>] [irq<\/b>]<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

[irq-shared<\/b>] [dma<\/b>] [dma-shared<\/b>] [filter<\/b>] [filter-shared<\/b>] [offload<\/b>] [offload-shared<\/b>] [mac<\/b>] [mac-shared<\/b>] [phy<\/b>] [phy-shared<\/b>] [ram<\/b>] [ram-shared<\/b>] [ap<\/b>] [ap-shared<\/b>] [dedicated<\/b>] [all<\/b>]<\/p>\n\n\n\n
<\/td>\n\n

ethtool \u2212\u2212show\u2212fec<\/b><\/p>\n<\/td>\n

\n

devname<\/i><\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

ethtool \u2212\u2212set\u2212fec<\/b><\/p>\n<\/td>\n

\n

devname<\/i> encoding auto<\/b>|off<\/b>|rs<\/b>|baser<\/b>|llrs\u00a0<\/b>[…]<\/p>\n\n\n

ethtool<\/b><\/p>\n<\/table>\n

\u2212Q|\u2212\u2212per\u2212queue<\/b> devname<\/i> [queue_mask<\/b> %x<\/i>] sub_command<\/i> …<\/p>\n

.<\/p>\n

\n\n
<\/td>\n\n

ethtool \u2212\u2212cable\u2212test<\/b><\/p>\n<\/td>\n

<\/td>\n\n

devname<\/i><\/p>\n\n\n
<\/td>\n\n

ethtool<\/b><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\u2212\u2212cable\u2212test\u2212tdr<\/b> devname<\/i> [first\u00a0<\/b>N<\/i>] [last\u00a0<\/b>N<\/i>] [step\u00a0<\/b>N<\/i>] [pair\u00a0<\/b>N<\/i>]<\/p>\n

ethtool \u2212\u2212show\u2212tunnels<\/b> devname<\/i><\/p>\n

DESCRIPTION <\/a> <\/h2>\n

ethtool<\/b><\/i> is used to query and control network device driver and hardware settings, particularly for wired Ethernet devices.<\/p>\n

devname<\/i> is the name of the network device on which ethtool should operate.<\/p>\n

OPTIONS <\/a> <\/h2>\n

ethtool<\/b> with a single argument specifying the device name prints current settings of the specified device.
\u2212h \u2212\u2212help<\/b><\/p>\n

Shows a short help message.<\/p>\n

\u2212\u2212version<\/b><\/p>\n

Shows the ethtool version number.<\/p>\n

\u2212\u2212debug\u00a0<\/b>N<\/i><\/p>\n

Turns on debugging messages. Argument is interpreted as a mask:<\/p>\n\n\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\"Image<\/p>\n\n\n
<\/td>\n\n

\u2212\u2212json<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Output results in JavaScript Object Notation (JSON). Only a subset of options support this. Those which do not will continue to output plain text in the presence of this option.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

\u2212I \u2212\u2212include\u2212statistics<\/b><\/p>\n

Include command-related statistics in the output. This option allows displaying relevant device statistics for selected get commands.<\/p>\n

\u2212a \u2212\u2212show\u2212pause<\/b><\/p>\n

Queries the specified Ethernet device for pause parameter information.<\/p>\n

\u2212A \u2212\u2212pause<\/b><\/p>\n

Changes the pause parameters of the specified Ethernet device.<\/p>\n

autoneg\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether pause autonegotiation should be enabled.<\/p>\n

rx\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether RX pause should be enabled.<\/p>\n

tx\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether TX pause should be enabled.<\/p>\n

\u2212c \u2212\u2212show\u2212coalesce<\/b><\/p>\n

Queries the specified network device for coalescing information.<\/p>\n

\u2212C \u2212\u2212coalesce<\/b><\/p>\n

Changes the coalescing settings of the specified network device.<\/p>\n

\u2212g \u2212\u2212show\u2212ring<\/b><\/p>\n

Queries the specified network device for rx\/tx ring parameter information.<\/p>\n

\u2212G \u2212\u2212set\u2212ring<\/b><\/p>\n

Changes the rx\/tx ring parameters of the specified network device.<\/p>\n\n\n
<\/td>\n\n

rx\u00a0<\/b>N<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Changes the number of ring entries for the Rx ring.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

rx\u2212mini\u00a0<\/b>N<\/i><\/p>\n

Changes the number of ring entries for the Rx Mini ring.<\/p>\n

rx\u2212jumbo\u00a0<\/b>N<\/i><\/p>\n

Changes the number of ring entries for the Rx Jumbo ring.<\/p>\n\n\n
<\/td>\n\n

tx\u00a0<\/b>N<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Changes the number of ring entries for the Tx ring.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

\u2212i \u2212\u2212driver<\/b><\/p>\n

Queries the specified network device for associated driver information.<\/p>\n

\u2212d \u2212\u2212register\u2212dump<\/b><\/p>\n

Retrieves and prints a register dump for the specified network device. The register format for some devices is known and decoded others are printed in hex. When raw<\/i> is enabled, then ethtool dumps the raw register data to stdout. If file<\/i> is specified, then use contents of previous raw register dump, rather than reading from the device.<\/p>\n

\u2212e \u2212\u2212eeprom\u2212dump<\/b><\/p>\n

Retrieves and prints an EEPROM dump for the specified network device. When raw is enabled, then it dumps the raw EEPROM data to stdout. The length and offset parameters allow dumping certain portions of the EEPROM. Default is to dump the entire EEPROM.<\/p>\n

raw\u00a0<\/b>on|off<\/i>
offset\u00a0<\/b>N<\/i>
length\u00a0<\/b>N<\/i><\/p>\n

\u2212E \u2212\u2212change\u2212eeprom<\/b><\/p>\n

If value is specified, changes EEPROM byte for the specified network device. offset and value specify which byte and it\u2019s new value. If value is not specified, stdin is read and written to the EEPROM. The length and offset parameters allow writing to certain portions of the EEPROM. Because of the persistent nature of writing to the EEPROM, a device-specific magic key must be specified to prevent the accidental writing to the EEPROM.<\/p>\n

\u2212k \u2212\u2212show\u2212features \u2212\u2212show\u2212offload<\/b><\/p>\n

Queries the specified network device for the state of protocol offload and other features.<\/p>\n

\u2212K \u2212\u2212features \u2212\u2212offload<\/b><\/p>\n

Changes the offload parameters and other features of the specified network device. The following feature names are built-in and others may be defined by the kernel.<\/p>\n

rx\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether RX checksumming should be enabled.<\/p>\n

tx\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether TX checksumming should be enabled.<\/p>\n

sg\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether scatter-gather should be enabled.<\/p>\n

tso\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether TCP segmentation offload should be enabled.<\/p>\n

ufo\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether UDP fragmentation offload should be enabled<\/p>\n

gso\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether generic segmentation offload should be enabled<\/p>\n

gro\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether generic receive offload should be enabled<\/p>\n

lro\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether large receive offload should be enabled<\/p>\n

rxvlan\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether RX VLAN acceleration should be enabled<\/p>\n

txvlan\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether TX VLAN acceleration should be enabled<\/p>\n

ntuple\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether Rx ntuple filters and actions should be enabled<\/p>\n

rxhash\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether receive hashing offload should be enabled<\/p>\n

\u2212p \u2212\u2212identify<\/b><\/p>\n

Initiates adapter-specific action intended to enable an operator to easily identify the adapter by sight. Typically this involves blinking one or more LEDs on the specific network port.<\/p>\n\n\n
<\/td>\n\n

[\u00a0N<\/i>]<\/p>\n<\/td>\n

<\/td>\n\n

Length of time to perform phys-id, in seconds.<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

\u2212P \u2212\u2212show\u2212permaddr<\/b><\/p>\n

Queries the specified network device for permanent hardware address.<\/p>\n

\u2212r \u2212\u2212negotiate<\/b><\/p>\n

Restarts auto-negotiation on the specified Ethernet device, if auto-negotiation is enabled.<\/p>\n

\u2212S \u2212\u2212statistics<\/b><\/p>\n

Queries the specified network device for standard (IEEE, IETF, etc.), or NIC- and driver-specific statistics. NIC- and driver-specific statistics are requested when no group of statistics is specified.<\/p>\n

NIC- and driver-specific statistics and standard statistics are independent, devices may implement either, both or none. There is little commonality between naming of NIC- and driver-specific statistics across vendors.<\/p>\n

\u2212\u2212all\u2212groups
\u2212\u2212groups [eth\u2212phy] [eth\u2212mac] [eth\u2212ctrl] [rmon]<\/b><\/p>\n

Request groups of standard device statistics.<\/p>\n

\u2212\u2212phy\u2212statistics<\/b><\/p>\n

Queries the specified network device for PHY specific statistics.<\/p>\n

\u2212t \u2212\u2212test<\/b><\/p>\n

Executes adapter selftest on the specified network device. Possible test modes are:<\/p>\n

offline<\/b><\/p>\n

Perform full set of tests, possibly interrupting normal operation during the tests,<\/p>\n\n\n
<\/td>\n\n

online<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Perform limited set of tests, not interrupting normal operation,<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

external_lb<\/b><\/p>\n

Perform full set of tests, as for offline<\/b>, and additionally an external-loopback test.<\/p>\n

\u2212s \u2212\u2212change<\/b><\/p>\n

Allows changing some or all settings of the specified network device. All following options only apply if \u2212s<\/b> was specified.<\/p>\n

speed\u00a0<\/b>N<\/i><\/p>\n

Set speed in Mb\/s. ethtool<\/b> with just the device name as an argument will show you the supported device speeds.<\/p>\n

lanes\u00a0<\/b>N<\/i><\/p>\n

Set number of lanes.<\/p>\n

duplex\u00a0half<\/b>|full<\/b><\/p>\n

Sets full or half duplex mode.<\/p>\n

port\u00a0tp<\/b>|aui<\/b>|bnc<\/b>|mii<\/b><\/p>\n

Selects device port.<\/p>\n

master-slave\u00a0preferred-master<\/b>|preferred-slave<\/b>|forced-master<\/b>|forced-slave<\/b><\/p>\n

Configure MASTER\/SLAVE role of the PHY. When the PHY is configured as MASTER, the PMA Transmit function shall source TX_TCLK from a local clock source. When configured as SLAVE, the PMA Transmit function shall source TX_TCLK from the clock recovered from data stream provided by MASTER. Not all devices support this.<\/p>\n

\"Image<\/p>\n

mdix\u00a0auto<\/b>|on<\/b>|off<\/b><\/p>\n

Selects MDI-X mode for port. May be used to override the automatic detection feature of most adapters. An argument of auto<\/b> means automatic detection of MDI status, on<\/b> forces MDI-X (crossover) mode, while off<\/b> means MDI (straight through) mode. The driver should guarantee that this command takes effect immediately, and if necessary may reset the link to cause the change to take effect.<\/p>\n

autoneg\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether autonegotiation should be enabled. Autonegotiation is enabled by default, but in some network devices may have trouble with it, so you can disable it if really necessary.<\/p>\n

advertise\u00a0<\/b>N<\/i><\/p>\n

Sets the speed and duplex advertised by autonegotiation. The argument is a hexadecimal value using one or a combination of the following values:<\/p>\n

\"Image<\/p>\n

phyad\u00a0<\/b>N<\/i><\/p>\n

PHY address.<\/p>\n

xcvr\u00a0internal<\/b>|external<\/b><\/p>\n

Selects transceiver type. Currently only internal and external can be specified, in the future further types might be added.<\/p>\n

wol\u00a0p<\/b>|u<\/b>|m<\/b>|b<\/b>|a<\/b>|g<\/b>|s<\/b>|f|d…<\/b><\/p>\n

Sets Wake-on-LAN options. Not all devices support this. The argument to this option is a string of characters specifying which options to enable.<\/p>\n

\"Image<\/p>\n

sopass<\/b> xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i><\/p>\n

Sets the SecureOn\u2122 password. The argument to this option must be 6 bytes in Ethernet MAC hex format (xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>).<\/p>\n

msglvl\u00a0<\/b>N<\/i>
msglvl\u00a0<\/b>type<\/i> on<\/b>|off<\/b> …<\/p>\n

Sets the driver message type flags by name or number. type<\/i> names the type of message to enable or disable; N<\/i> specifies the new flags numerically. The defined type names and numbers are:<\/p>\n

\"Image<\/p>\n

The precise meanings of these type flags differ between drivers.<\/p>\n

\u2212n \u2212u \u2212\u2212show\u2212nfc \u2212\u2212show\u2212ntuple<\/b><\/p>\n

Retrieves receive network flow classification options or rules.<\/p>\n

rx\u2212flow\u2212hash\u00a0tcp4<\/b>|udp4<\/b>|ah4<\/b>|esp4<\/b>|sctp4<\/b>|tcp6<\/b>|udp6<\/b>|ah6<\/b>|esp6<\/b>|sctp6<\/b><\/p>\n

Retrieves the hash options for the specified flow type.<\/p>\n

\"Image<\/p>\n\n\n
<\/td>\n\n

rule\u00a0<\/b>N<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Retrieves the RX classification rule with the given ID.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

\u2212N \u2212U \u2212\u2212config\u2212nfc \u2212\u2212config\u2212ntuple<\/b><\/p>\n

Configures receive network flow classification options or rules.<\/p>\n

rx\u2212flow\u2212hash\u00a0tcp4<\/b>|udp4<\/b>|ah4<\/b>|esp4<\/b>|sctp4<\/b>|tcp6<\/b>|udp6<\/b>|ah6<\/b>|esp6<\/b>|sctp6
m<\/b>|v<\/b>|t<\/b>|s<\/b>|d<\/b>|f<\/b>|n<\/b>|r<\/b>…<\/p>\n

Configures the hash options for the specified flow type.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\"Image<\/p>\n

flow\u2212type
ether|ip4|tcp4|udp4|sctp4|ah4|esp4|ip6|tcp6|udp6|ah6|esp6|sctp6<\/b><\/p>\n

Inserts or updates a classification rule for the specified flow type.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\"Image<\/p>\n

For all fields that allow both a value and a mask to be specified, the mask may be specified immediately after the value using the m<\/b> keyword, or separately using the field name keyword with -mask<\/b> appended, e.g. src-mask<\/b>.
src\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc\u00a0<\/i>[m\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>]<\/p>\n

Includes the source MAC address, specified as 6 bytes in hexadecimal separated by colons, along with an optional mask. Valid only for flow-type ether.<\/p>\n

dst\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc\u00a0<\/i>[m\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>]<\/p>\n

Includes the destination MAC address, specified as 6 bytes in hexadecimal separated by colons, along with an optional mask. Valid only for flow-type ether.<\/p>\n

proto\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Includes the Ethernet protocol number (ethertype) and an optional mask. Valid only for flow-type ether.<\/p>\n

src\u2212ip\u00a0<\/b>ip-address\u00a0<\/i>[m\u00a0<\/b>ip-address<\/i>]<\/p>\n

Specify the source IP address of the incoming packet to match along with an optional mask. Valid for all IP based flow-types.<\/p>\n

dst\u2212ip\u00a0<\/b>ip-address\u00a0<\/i>[m\u00a0<\/b>ip-address<\/i>]<\/p>\n

Specify the destination IP address of the incoming packet to match along with an optional mask. Valid for all IP based flow-types.<\/p>\n

tos\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Specify the value of the Type of Service field in the incoming packet to match along with an optional mask. Applies to all IPv4 based flow-types.<\/p>\n

tclass\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Specify the value of the Traffic Class field in the incoming packet to match along with an optional mask. Applies to all IPv6 based flow-types.<\/p>\n

l4proto\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Includes the layer 4 protocol number and optional mask. Valid only for flow-types ip4 and ip6.<\/p>\n

src\u2212port\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Specify the value of the source port field (applicable to TCP\/UDP packets) in the incoming packet to match along with an optional mask. Valid for flow-types ip4, tcp4, udp4, and sctp4 and their IPv6 equivalents.<\/p>\n

dst\u2212port\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Specify the value of the destination port field (applicable to TCP\/UDP packets)in the incoming packet to match along with an optional mask. Valid for flow-types ip4, tcp4, udp4, and sctp4 and their IPv6 equivalents.<\/p>\n

spi\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Specify the value of the security parameter index field (applicable to AH\/ESP packets)in the incoming packet to match along with an optional mask. Valid for flow-types ip4, ah4, and esp4 and their IPv6 equivalents.<\/p>\n

l4data\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Specify the value of the first 4 Bytes of Layer 4 in the incoming packet to match along with an optional mask. Valid for ip4 and ip6 flow-types.<\/p>\n

vlan\u2212etype\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Includes the VLAN tag Ethertype and an optional mask.<\/p>\n

vlan\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Includes the VLAN tag and an optional mask.<\/p>\n

user\u2212def\u00a0<\/b>N\u00a0<\/i>[m\u00a0<\/b>N<\/i>]<\/p>\n

Includes 64-bits of user-specific data and an optional mask.<\/p>\n

dst-mac\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc\u00a0<\/i>[m\u00a0<\/b>xx<\/i>:<\/b>yy<\/i>:<\/b>zz<\/i>:<\/b>aa<\/i>:<\/b>bb<\/i>:<\/b>cc<\/i>]<\/p>\n

Includes the destination MAC address, specified as 6 bytes in hexadecimal separated by colons, along with an optional mask. Valid for all IP based flow-types.<\/p>\n

action\u00a0<\/b>N<\/i><\/p>\n

Specifies the Rx queue to send packets to, or some other action.<\/p>\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

\"Image<\/p>\n

context\u00a0<\/b>N<\/i><\/p>\n

Specifies the RSS context to spread packets over multiple queues; either 0<\/b> for the default RSS context, or a value returned by ethtool\u00a0-X\u00a0<\/b>…\u00a0<\/i>context new<\/b>.<\/p>\n\n\n
<\/td>\n\n

vf\u00a0<\/b>N<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Specifies the Virtual Function the filter applies to. Not compatible with action.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

queue\u00a0<\/b>N<\/i><\/p>\n

Specifies the Rx queue to send packets to. Not compatible with action.<\/p>\n\n\n
<\/td>\n\n

loc\u00a0<\/b>N<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Specify the location\/ID to insert the rule. This will overwrite any rule present in that location and will not go through any of the rule ordering process.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

delete\u00a0<\/b>N<\/i><\/p>\n

Deletes the RX classification rule with the given ID.<\/p>\n

\u2212w \u2212\u2212get\u2212dump<\/b><\/p>\n

Retrieves and prints firmware dump for the specified network device. By default, it prints out the dump flag, version and length of the dump data. When data<\/i> is indicated, then ethtool fetches the dump data and directs it to a file.<\/i><\/p>\n

\u2212W \u2212\u2212set\u2212dump<\/b><\/p>\n

Sets the dump flag for the device.<\/p>\n

\u2212T \u2212\u2212show\u2212time\u2212stamping<\/b><\/p>\n

Show the device\u2019s time stamping capabilities and associated PTP hardware clock.<\/p>\n

\u2212x \u2212\u2212show\u2212rxfh\u2212indir \u2212\u2212show\u2212rxfh<\/b><\/p>\n

Retrieves the receive flow hash indirection table and\/or RSS hash key.<\/p>\n

\u2212X \u2212\u2212set\u2212rxfh\u2212indir \u2212\u2212rxfh<\/b><\/p>\n

Configures the receive flow hash indirection table and\/or RSS hash key.<\/p>\n\n\n\n
<\/td>\n\n

hkey<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Sets RSS hash key of the specified network device. RSS hash key should be of device supported length. Hash key format must be in xx:yy:zz:aa:bb:cc format meaning both the nibbles of a byte should be mentioned even if a nibble is zero.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

hfunc<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Sets RSS hash function of the specified network device. List of RSS hash functions which kernel supports is shown as a part of the –show-rxfh command output.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

start\u00a0<\/b>N<\/i><\/p>\n

For the equal<\/b> and weight<\/b> options, sets the starting receive queue for spreading flows to N<\/i>.<\/p>\n

equal\u00a0<\/b>N<\/i><\/p>\n

Sets the receive flow hash indirection table to spread flows evenly between the first N<\/i> receive queues.<\/p>\n

weight<\/b> W0 W1<\/i> …<\/p>\n

Sets the receive flow hash indirection table to spread flows between receive queues according to the given weights. The sum of the weights must be non-zero and must not exceed the size of the indirection table.<\/p>\n

default<\/b><\/p>\n

Sets the receive flow hash indirection table to its default value.<\/p>\n

context<\/b> CTX<\/i> | new<\/b><\/p>\n

Specifies an RSS context to act on; either new<\/b> to allocate a new RSS context, or CTX<\/i>, a value returned by a previous …\u00a0<\/i>context new<\/b>.<\/p>\n\n\n
<\/td>\n\n

delete<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Delete the specified RSS context. May only be used in conjunction with context<\/b> and a non-zero CTX<\/i> value.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

\u2212f \u2212\u2212flash<\/b><\/p>\n

Write a firmware image to flash or other non-volatile memory on the device.<\/p>\n\n\n\n
<\/td>\n\n

file<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Specifies the filename of the firmware image. The firmware must first be installed in one of the directories where the kernel firmware loader or firmware agent will look, such as \/lib\/firmware.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

N<\/i><\/p>\n<\/td>\n

<\/td>\n\n

If the device stores multiple firmware images in separate regions of non-volatile memory, this parameter may be used to specify which region is to be written. The default is 0, requesting that all regions are written. All other values are driver-dependent.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

\u2212l \u2212\u2212show\u2212channels<\/b><\/p>\n

Queries the specified network device for the numbers of channels it has. A channel is an IRQ and the set of queues that can trigger that IRQ.<\/p>\n

\u2212L \u2212\u2212set\u2212channels<\/b><\/p>\n

Changes the numbers of channels of the specified network device.<\/p>\n\n\n\n
<\/td>\n\n

rx\u00a0<\/b>N<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Changes the number of channels with only receive queues.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

tx\u00a0<\/b>N<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Changes the number of channels with only transmit queues.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

other\u00a0<\/b>N<\/i><\/p>\n

Changes the number of channels used only for other purposes e.g. link interrupts or SR-IOV co-ordination.<\/p>\n

combined\u00a0<\/b>N<\/i><\/p>\n

Changes the number of multi-purpose channels.<\/p>\n

\u2212m \u2212\u2212dump\u2212module\u2212eeprom \u2212\u2212module\u2212info<\/b><\/p>\n

Retrieves and if possible decodes the EEPROM from plugin modules, e.g SFP+, QSFP. If the driver and module support it, the optical diagnostic information is also read and decoded. When either one of page, bank<\/i> or i2c<\/i> parameters is specified, dumps only of a single page or its portion is allowed. In such a case offset<\/i> and length<\/i> parameters are treated relatively to EEPROM page boundaries.<\/p>\n

\u2212\u2212show\u2212priv\u2212flags<\/b><\/p>\n

Queries the specified network device for its private flags. The names and meanings of private flags (if any) are defined by each network device driver.<\/p>\n

\u2212\u2212set\u2212priv\u2212flags<\/b><\/p>\n

Sets the device\u2019s private flags as specified.<\/p>\n

flag<\/i> on<\/b>|off<\/b> Sets the state of the named private flag.<\/p>\n

\u2212\u2212show\u2212eee<\/b><\/p>\n

Queries the specified network device for its support of Energy-Efficient Ethernet (according to the IEEE 802.3az specifications)<\/p>\n

\u2212\u2212set\u2212eee<\/b><\/p>\n

Sets the device EEE behaviour.<\/p>\n

eee\u00a0on<\/b>|off<\/b><\/p>\n

Enables\/disables the device support of EEE.<\/p>\n

tx-lpi\u00a0on<\/b>|off<\/b><\/p>\n

Determines whether the device should assert its Tx LPI.<\/p>\n

advertise\u00a0<\/b>N<\/i><\/p>\n

Sets the speeds for which the device should advertise EEE capabilities. Values are as for \u2212\u2212change advertise<\/b><\/p>\n

tx-timer\u00a0<\/b>N<\/i><\/p>\n

Sets the amount of time the device should stay in idle mode prior to asserting its Tx LPI (in microseconds). This has meaning only when Tx LPI is enabled.<\/p>\n

\u2212\u2212set\u2212phy\u2212tunable<\/b><\/p>\n

Sets the PHY tunable parameters.<\/p>\n

downshift\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether downshift should be enabled.<\/p>\n

\u00a0<\/p>\n

\"Image<\/p>\n

fast-link-down\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether Fast Link Down should be enabled and time until link down (if supported).<\/p>\n

\u00a0<\/p>\n

\"Image<\/p>\n

energy-detect-power-down\u00a0on<\/b>|off<\/b><\/p>\n

Specifies whether Energy Detect Power Down (EDPD) should be enabled (if supported). This will put the RX and TX circuit blocks into a low power mode, and the PHY will wake up periodically to send link pulses to avoid any lock-up situation with a peer PHY that may also have EDPD enabled. By default, this setting will also enable the periodic transmission of TX pulses.<\/p>\n

\u00a0<\/p>\n

\"Image<\/p>\n

\u2212\u2212get\u2212phy\u2212tunable<\/b><\/p>\n

Gets the PHY tunable parameters.<\/p>\n

downshift<\/b><\/p>\n

For operation in cabling environments that are incompatible with 1000BASE-T, PHY device provides an automatic link speed downshift operation. Link speed downshift after N failed 1000BASE-T auto-negotiation attempts. Downshift is useful where cable does not have the 4 pairs instance.<\/p>\n

Gets the PHY downshift count\/status.<\/p>\n

fast\u2212link\u2212down<\/b><\/p>\n

Depending on the mode it may take 0.5s – 1s until a broken link is reported as down. In certain use cases a link-down event needs to be reported as soon as possible. Some PHYs support a Fast Link Down Feature and may allow configuration of the delay before a broken link is reported as being down.<\/p>\n

Gets the PHY Fast Link Down status \/ period.<\/p>\n

energy\u2212detect\u2212power\u2212down<\/b><\/p>\n

Gets the current configured setting for Energy Detect Power Down (if supported).<\/p>\n

\u2212\u2212get\u2212tunable<\/b><\/p>\n

Get the tunable parameters.<\/p>\n

rx\u2212copybreak<\/b><\/p>\n

Get the current rx copybreak value in bytes.<\/p>\n

tx\u2212copybreak<\/b><\/p>\n

Get the current tx copybreak value in bytes.<\/p>\n

pfc\u2212prevention\u2212tout<\/b><\/p>\n

Get the current pfc prevention timeout value in msecs.<\/p>\n

\u2212\u2212set\u2212tunable<\/b><\/p>\n

Set driver\u2019s tunable parameters.<\/p>\n

rx\u2212copybreak\u00a0<\/b>N<\/i><\/p>\n

Set the rx copybreak value in bytes.<\/p>\n

tx\u2212copybreak\u00a0<\/b>N<\/i><\/p>\n

Set the tx copybreak value in bytes.<\/p>\n

pfc\u2212prevention\u2212tout\u00a0<\/b>N<\/i><\/p>\n

Set pfc prevention timeout in msecs. Value of 0 means disable and 65535 means auto.<\/p>\n

\u2212\u2212reset<\/b><\/p>\n

Reset hardware components specified by flags and components listed below<\/p>\n

flags\u00a0<\/b>N<\/i><\/p>\n

Resets the components based on direct flags mask<\/p>\n\n\n\n\n\n
<\/td>\n\n

mgmt<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Management processor<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

irq<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Interrupt requester<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

dma<\/b><\/p>\n<\/td>\n

<\/td>\n\n

DMA engine<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

filter<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Filtering\/flow direction<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

offload<\/b><\/p>\n

Protocol offload<\/p>\n\n\n\n\n
<\/td>\n\n

mac<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Media access controller<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

phy<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Transceiver\/PHY<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

ram<\/b><\/p>\n<\/td>\n

<\/td>\n\n

RAM shared between multiple components ap<\/b> Application Processor<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

dedicated<\/b><\/p>\n

All components dedicated to this interface<\/p>\n\n\n
<\/td>\n\n

all<\/b><\/p>\n<\/td>\n

<\/td>\n\n

All components used by this interface, even if shared<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

\u2212\u2212show\u2212fec<\/b><\/p>\n

Queries the specified network device for its support of Forward Error Correction.<\/p>\n

\u2212\u2212set\u2212fec<\/b><\/p>\n

Configures Forward Error Correction for the specified network device.<\/p>\n

Forward Error Correction modes selected by a user are expected to be persisted after any hotplug events. If a module is swapped that does not support the current FEC mode, the driver or firmware must take the link down administratively and report the problem in the system logs for users to correct.<\/p>\n

encoding\u00a0auto<\/b>|off<\/b>|rs<\/b>|baser<\/b>|llrs\u00a0<\/b>[…]<\/p>\n

Sets the FEC encoding for the device. Combinations of options are specified as e.g. encoding auto rs<\/b> ; the semantics of such combinations vary between drivers.<\/p>\n

\"Image<\/p>\n

\u2212Q|\u2212\u2212per\u2212queue<\/b><\/p>\n

Applies provided sub command to specific queues.<\/p>\n

queue_mask %x<\/b><\/p>\n

Sets the specific queues which the sub command is applied to. If queue_mask is not set, the sub command will be applied to all queues.<\/p>\n

sub_command<\/b><\/p>\n

Sub command to apply. The supported sub commands include –show-coalesce and –coalesce.<\/p>\n

q.B \u2212\u2212cable\u2212test<\/p>\n

Perform a cable test and report the results. What results are returned depends on the capabilities of the network interface. Typically open pairs and shorted pairs can be reported, along with pairs being O.K. When a fault is detected the approximate distance to the fault may be reported.<\/p>\n

\u2212\u2212cable\u2212test\u2212tdr<\/b><\/p>\n

Perform a cable test and report the raw Time Domain Reflectometer data. A pulse is sent down a cable pair and the amplitude of the reflection, for a given distance, is reported. A break in the cable returns a big reflection. Minor damage to the cable returns a small reflection. If the cable is shorted, the amplitude of the reflection can be negative. By default, data is returned for lengths between 0 and 150m at 1m steps, for all pairs. However parameters can be passed to restrict the collection of data. It should be noted, that the interface will round the distances to whatever granularity is actually implemented. This is often 0.8 of a meter. The results should include the actual rounded first and last distance and step size.<\/p>\n

first \u00a0N<\/b><\/p>\n

Distance along the cable, in meters, where the first measurement should be made.<\/p>\n

last \u00a0N<\/b><\/p>\n

Distance along the cable, in meters, where the last measurement should be made.<\/p>\n

step \u00a0N<\/b><\/p>\n

Distance, in meters, between each measurement.<\/p>\n

pair \u00a0N<\/b><\/p>\n

Which pair should be measured. Typically a cable has 4 pairs. 0 = Pair A, 1 = Pair B, …<\/p>\n

\u2212\u2212monitor<\/b><\/p>\n

Listens to netlink notification and displays them.<\/p>\n

command<\/i><\/p>\n

If argument matching a command is used, ethtool only shows notifications of this type. Without such argument or with –all, all notification types are shown.<\/p>\n

devname<\/i><\/p>\n

If a device name is used as argument, only notification for this device are shown. Default is to show notifications for all devices.<\/p>\n

\u2212\u2212show\u2212tunnels<\/b><\/p>\n

Show tunnel-related device capabilities and state. List UDP ports kernel has programmed the device to parse as VxLAN, or GENEVE tunnels.<\/p>\n

BUGS <\/a> <\/h2>\n

Not supported (in part or whole) on all network drivers.<\/p>\n

AUTHOR <\/a> <\/h2>\n

ethtool<\/b> was written by David Miller.<\/p>\n

Modifications by Jeff Garzik, Tim Hockin, Jakub Jelinek, Andre Majorel, Eli Kupermann, Scott Feldman, Andi Kleen, Alexander Duyck, Sucheta Chakraborty, Jesse Brandeburg, Ben Hutchings, Scott Branden.<\/p>\n

AVAILABILITY <\/a> <\/h2>\n

ethtool<\/b> is available from http:\/\/www.kernel.org\/pub\/software\/network\/ethtool\/<\/a><\/p>\n

\n","protected":false},"excerpt":{"rendered":"

ethtool \u2212 query or control network driver and hardware settings <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[5,52,504,4],"class_list":["post-3376","post","type-post","status-publish","format-standard","hentry","category-8-administracion-del-sistema","tag-5","tag-administracion","tag-ethtool","tag-man8"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/3376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=3376"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/3376\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=3376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=3376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=3376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}