diff options
Diffstat (limited to 'ethtool.8.in')
| -rw-r--r-- | ethtool.8.in | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/ethtool.8.in b/ethtool.8.in index 7a3080f..8090f0f 100644 --- a/ethtool.8.in +++ b/ethtool.8.in @@ -117,7 +117,7 @@ . hy \\n(HY .. . -.TH ETHTOOL 8 "January 2024" "Ethtool version @VERSION@" +.TH ETHTOOL 8 "May 2024" "Ethtool version @VERSION@" .SH NAME ethtool \- query or control network driver and hardware settings . @@ -351,6 +351,7 @@ ethtool \- query or control network driver and hardware settings .RB ...\ | \ default \ ] .RB [ hfunc .IR FUNC ] +.B2 xfrm symmetric-xor none .RB [ context .I CTX .RB |\ new ] @@ -565,6 +566,10 @@ Turns on debugging messages. Argument is interpreted as a mask: nokeep; lB l. 0x01 Parser information +0x02 Summary of netlink messages +0x04 Hex dump of sent netlink messages +0x08 Hex dump of received netlink messages +0x10 Structure of netlink messages .TE .TP .BI \-\-json @@ -1201,6 +1206,19 @@ even if a nibble is zero. 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. .TP +.BI xfrm +Sets the RSS input transformation. Currently, only the +.B symmetric-xor +transformation is supported where the NIC XORs the L3 and/or L4 source and +destination fields (as selected by +.B --config-nfc rx-flow-hash +) before passing them to the hash algorithm. The RSS hash function will +then yield the same hash for the other flow direction where the source and +destination fields are swapped (i.e. Symmetric RSS). Note that XORing the +input parameters reduces the entropy of the input set and the hash algorithm +could potentially be exploited. Switch off (default) by +.B xfrm none. +.TP .BI start\ N For the \fBequal\fR and \fBweight\fR options, sets the starting receive queue for spreading flows to \fIN\fR. |