linux.git/include/uapi/linux/ethtool.h, branch v5.4.63

ethtool: implement Energy Detect Powerdown support via phy-tunable

2019-09-16T20:02:45+00:00

The `phy_tunable_id` has been named `ETHTOOL_PHY_EDPD` since it looks like
this feature is common across other PHYs (like EEE), and defining
`ETHTOOL_PHY_ENERGY_DETECT_POWER_DOWN` seems too long.

The way EDPD works, is that the RX block is put to a lower power mode,
except for link-pulse detection circuits. The TX block is also put to low
power mode, but the PHY wakes-up periodically to send link pulses, to avoid
lock-ups in case the other side is also in EDPD mode.

Currently, there are 2 PHY drivers that look like they could use this new
PHY tunable feature: the `adin` && `micrel` PHYs.

The ADIN's datasheet mentions that TX pulses are at intervals of 1 second
default each, and they can be disabled. For the Micrel KSZ9031 PHY, the
datasheet does not mention whether they can be disabled, but mentions that
they can modified.

The way this change is structured, is similar to the PHY tunable downshift
control:
* a `ETHTOOL_PHY_EDPD_DFLT_TX_MSECS` value is exposed to cover a default
  TX interval; some PHYs could specify a certain value that makes sense
* `ETHTOOL_PHY_EDPD_NO_TX` would disable TX when EDPD is enabled
* `ETHTOOL_PHY_EDPD_DISABLE` will disable EDPD

As noted by the `ETHTOOL_PHY_EDPD_DFLT_TX_MSECS` the interval unit is 1
millisecond, which should cover a reasonable range of intervals:
 - from 1 millisecond, which does not sound like much of a power-saver
 - to ~65 seconds which is quite a lot to wait for a link to come up when
   plugging a cable

Reviewed-by: Andrew Lunn 
Reviewed-by: Florian Fainelli 
Signed-off-by: Alexandru Ardelean 
Signed-off-by: David S. Miller

net: phy: Add support for 100BaseT1 and 1000BaseT1

2019-05-23T00:46:28+00:00

Add link modes for 100Mbps and 1Gbps over a single pair.

Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

ethtool: Add SFF-8436 and SFF-8636 max EEPROM length definitions

2019-05-01T21:39:16+00:00

Added max EEPROM length defines for ethtool usage:
 #define ETH_MODULE_SFF_8636_MAX_LEN     640
 #define ETH_MODULE_SFF_8436_MAX_LEN     640

These definitions are used to determine the EEPROM
data length when reading high eeprom pages.

For example, SFF-8636 EEPROM data from page 03h
needs to be stored at data[512] - data[639].

Signed-off-by: Erez Alfasi 
Signed-off-by: Saeed Mahameed

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2019-04-09T06:39:36+00:00

ethtool: avoid signed-unsigned comparison in ethtool_validate_speed()

2019-04-08T23:30:43+00:00

When building C++ userspace code that includes ethtool.h
with "-Werror -Wall", g++ complains about signed-unsigned comparison in
ethtool_validate_speed() due to definition of SPEED_UNKNOWN as -1.

Explicitly cast SPEED_UNKNOWN to __u32 to match type of
ethtool_validate_speed() argument.

Signed-off-by: Michael Zhivich 
Signed-off-by: David S. Miller

ethtool: add PHY Fast Link Down support

2019-03-27T20:51:49+00:00

This adds support for Fast Link Down as new PHY tunable.
Fast Link Down reduces the time until a link down event is reported
for 1000BaseT. According to the standard it's 750ms what is too long
for several use cases.

v2:
- add comment describing the constants

Signed-off-by: Heiner Kallweit 
Reviewed-by: Florian Fainelli 
Reviewed-by: Michal Kubecek 
Signed-off-by: David S. Miller

net: phy: improve definition of __ETHTOOL_LINK_MODE_MASK_NBITS

2019-02-25T01:33:59+00:00

The way to define __ETHTOOL_LINK_MODE_MASK_NBITS seems to be overly
complicated, go with a standard approach instead.
Whilst we're at it, move the comment to the right place.

v2:
- rebased

Signed-off-by: Heiner Kallweit 
Signed-off-by: David S. Miller

ethtool: Added support for 50Gbps per lane link modes

2019-02-19T22:15:02+00:00

Added support for 50Gbps per lane link modes. Define various 50G, 100G
and 200G link modes using it.

Signed-off-by: Aya Levin 
Reviewed-by: Eran Ben Elisha 
Signed-off-by: Saeed Mahameed

uapi/ethtool: fix spelling errors

2018-11-18T04:33:32+00:00

Trivial spelling errors found by codespell.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

ethtool: drop get_settings and set_settings callbacks

2018-08-30T02:46:10+00:00

Since [gs]et_settings ethtool_ops callbacks have been deprecated in
February 2016, all in tree NIC drivers have been converted to provide
[gs]et_link_ksettings() and out of tree drivers have had enough time to do
the same.

Drop get_settings() and set_settings() and implement both ETHTOOL_[GS]SET
and ETHTOOL_[GS]LINKSETTINGS only using [gs]et_link_ksettings().

Signed-off-by: Michal Kubecek 
Signed-off-by: David S. Miller