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authorMichal Kubecek <mkubecek@suse.cz>2019-12-27 17:55:53 +0300
committerDavid S. Miller <davem@davemloft.net>2019-12-28 03:40:02 +0300
commita53f3d41e4d3df46aba254ba51e7fbe45470fece (patch)
treef627b68a30e26b61821519e9ef7d239b5cff2094 /Documentation/networking/ethtool-netlink.rst
parent459e0b81b37043545d90629fdfb243444151e77d (diff)
downloadlinux-a53f3d41e4d3df46aba254ba51e7fbe45470fece.tar.xz
ethtool: set link settings with LINKINFO_SET request
Implement LINKINFO_SET netlink request to set link settings queried by LINKINFO_GET message. Only physical port, phy MDIO address and MDI(-X) control can be set, attempt to modify MDI(-X) status and transceiver is rejected. 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/ethtool-netlink.rst')
-rw-r--r--Documentation/networking/ethtool-netlink.rst24
1 files changed, 22 insertions, 2 deletions
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
index 60684786a92c..39c4aba324c3 100644
--- a/Documentation/networking/ethtool-netlink.rst
+++ b/Documentation/networking/ethtool-netlink.rst
@@ -181,6 +181,7 @@ Userspace to kernel:
===================================== ================================
``ETHTOOL_MSG_STRSET_GET`` get string set
``ETHTOOL_MSG_LINKINFO_GET`` get link settings
+ ``ETHTOOL_MSG_LINKINFO_SET`` set link settings
===================================== ================================
Kernel to userspace:
@@ -311,6 +312,25 @@ corresponding ioctl structures.
devices supporting the request).
+LINKINFO_SET
+============
+
+``LINKINFO_SET`` request allows setting some of the attributes reported by
+``LINKINFO_GET``.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKINFO_HEADER`` nested request header
+ ``ETHTOOL_A_LINKINFO_PORT`` u8 physical port
+ ``ETHTOOL_A_LINKINFO_PHYADDR`` u8 phy MDIO address
+ ``ETHTOOL_A_LINKINFO_TP_MDIX_CTRL`` u8 MDI(-X) control
+ ==================================== ====== ==========================
+
+MDI(-X) status and transceiver cannot be set, request with the corresponding
+attributes is rejected.
+
+
Request translation
===================
@@ -322,7 +342,7 @@ have their netlink replacement yet.
ioctl command netlink command
=================================== =====================================
``ETHTOOL_GSET`` ``ETHTOOL_MSG_LINKINFO_GET``
- ``ETHTOOL_SSET`` n/a
+ ``ETHTOOL_SSET`` ``ETHTOOL_MSG_LINKINFO_SET``
``ETHTOOL_GDRVINFO`` n/a
``ETHTOOL_GREGS`` n/a
``ETHTOOL_GWOL`` n/a
@@ -396,7 +416,7 @@ have their netlink replacement yet.
``ETHTOOL_GPHYSTATS`` n/a
``ETHTOOL_PERQUEUE`` n/a
``ETHTOOL_GLINKSETTINGS`` ``ETHTOOL_MSG_LINKINFO_GET``
- ``ETHTOOL_SLINKSETTINGS`` n/a
+ ``ETHTOOL_SLINKSETTINGS`` ``ETHTOOL_MSG_LINKINFO_SET``
``ETHTOOL_PHY_GTUNABLE`` n/a
``ETHTOOL_PHY_STUNABLE`` n/a
``ETHTOOL_GFECPARAM`` n/a