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| author |   Michal Kubecek <mkubecek@suse.cz> | 2019-12-27 15:56:13 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-12-27 16:40:02 -0800 |
| commit | bfbcfe2032e70bd8598d680d39ac177d507e39ac (patch) | |
| tree | 327923c007619970e4b785454d66c592e7a83049 /Documentation/networking | |
| parent | ethtool: provide link mode information with LINKMODES_GET request (diff) | |
| download | linux-dev-bfbcfe2032e70bd8598d680d39ac177d507e39ac.tar.xz linux-dev-bfbcfe2032e70bd8598d680d39ac177d507e39ac.zip | |
ethtool: set link modes related data with LINKMODES_SET request
Implement LINKMODES_SET netlink request to set advertised linkmodes and
related attributes as ETHTOOL_SLINKSETTINGS and ETHTOOL_SSET commands do.
The request allows setting autonegotiation flag, speed, duplex and
advertised link modes.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/ethtool-netlink.rst | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst index 04c55be0264c..625c80183563 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -183,6 +183,7 @@ Userspace to kernel: ``ETHTOOL_MSG_LINKINFO_GET`` get link settings ``ETHTOOL_MSG_LINKINFO_SET`` set link settings ``ETHTOOL_MSG_LINKMODES_GET`` get link modes info + ``ETHTOOL_MSG_LINKMODES_SET`` set link modes info ===================================== ================================ Kernel to userspace: @@ -366,6 +367,30 @@ list. devices supporting the request). +LINKMODES_SET +============= + +Request contents: + + ==================================== ====== ========================== + ``ETHTOOL_A_LINKMODES_HEADER`` nested request header + ``ETHTOOL_A_LINKMODES_AUTONEG`` u8 autonegotiation status + ``ETHTOOL_A_LINKMODES_OURS`` bitset advertised link modes + ``ETHTOOL_A_LINKMODES_PEER`` bitset partner link modes + ``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s) + ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode + ==================================== ====== ========================== + +``ETHTOOL_A_LINKMODES_OURS`` bit set allows setting advertised link modes. If +autonegotiation is on (either set now or kept from before), advertised modes +are not changed (no ``ETHTOOL_A_LINKMODES_OURS`` attribute) and at least one +of speed and duplex is specified, kernel adjusts advertised modes to all +supported modes matching speed, duplex or both (whatever is specified). This +autoselection is done on ethtool side with ioctl interface, netlink interface +is supposed to allow requesting changes without knowing what exactly kernel +supports. + + Request translation =================== @@ -379,6 +404,7 @@ have their netlink replacement yet. ``ETHTOOL_GSET`` ``ETHTOOL_MSG_LINKINFO_GET`` ``ETHTOOL_MSG_LINKMODES_GET`` ``ETHTOOL_SSET`` ``ETHTOOL_MSG_LINKINFO_SET`` + ``ETHTOOL_MSG_LINKMODES_SET`` ``ETHTOOL_GDRVINFO`` n/a ``ETHTOOL_GREGS`` n/a ``ETHTOOL_GWOL`` n/a @@ -454,6 +480,7 @@ have their netlink replacement yet. ``ETHTOOL_GLINKSETTINGS`` ``ETHTOOL_MSG_LINKINFO_GET`` ``ETHTOOL_MSG_LINKMODES_GET`` ``ETHTOOL_SLINKSETTINGS`` ``ETHTOOL_MSG_LINKINFO_SET`` + ``ETHTOOL_MSG_LINKMODES_SET`` ``ETHTOOL_PHY_GTUNABLE`` n/a ``ETHTOOL_PHY_STUNABLE`` n/a ``ETHTOOL_GFECPARAM`` n/a |