linux-toradex.git/drivers/net/phy/marvell10g.c, branch v6.11

Revert "Introduce PHY listing and link_topology tracking"

2024-01-05T00:05:47+00:00

This reverts commit 32bb4515e34469975abc936deb0a116c4a445817.
This reverts commit d078d480639a4f3b5fc2d56247afa38e0956483a.
This reverts commit fcc4b105caa4b844bf043375bf799c20a9c99db1.
This reverts commit 345237dbc1bdbb274c9fb9ec38976261ff4a40b8.
This reverts commit 7db69ec9cfb8b4ab50420262631fb2d1908b25bf.
This reverts commit 95132a018f00f5dad38bdcfd4180d1af955d46f6.
This reverts commit 63d5eaf35ac36cad00cfb3809d794ef0078c822b.
This reverts commit c29451aefcb42359905d18678de38e52eccb3bb5.
This reverts commit 2ab0edb505faa9ac90dee1732571390f074e8113.
This reverts commit dedd702a35793ab462fce4c737eeba0badf9718e.
This reverts commit 034fcc210349b873ece7356905be5c6ca11eef2a.
This reverts commit 9c5625f559ad6fe9f6f733c11475bf470e637d34.
This reverts commit 02018c544ef113e980a2349eba89003d6f399d22.

Looks like we need more time for reviews, and incremental
changes will be hard to make sense of. So revert.

Link: https://lore.kernel.org/all/ZZP6FV5sXEf+xd58@shell.armlinux.org.uk/
Signed-off-by: Jakub Kicinski

net: phy: add helpers to handle sfp phy connect/disconnect

2024-01-01T18:38:56+00:00

There are a few PHY drivers that can handle SFP modules through their
sfp_upstream_ops. Introduce Phylib helpers to keep track of connected
SFP PHYs in a netdevice's namespace, by adding the SFP PHY to the
upstream PHY's netdev's namespace.

By doing so, these SFP PHYs can be enumerated and exposed to users,
which will be able to use their capabilities.

Signed-off-by: Maxime Chevallier 
Signed-off-by: David S. Miller

net: phy: marvell10g: fill in possible_interfaces

2023-11-28T02:04:11+00:00

Fill in the possible_interfaces member according to the selected
mactype mode.

Signed-off-by: Russell King (Oracle) 
Reviewed-by: Andrew Lunn 
Link: https://lore.kernel.org/r/E1r6VHv-00DDLZ-OL@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski

net: phy: marvell10g: table driven mactype decode

2023-11-28T02:04:11+00:00

Replace the code-based mactype decode with a table driven approach.
This will allow us to fill in the possible_interfaces cleanly.

Signed-off-by: Russell King (Oracle) 
Link: https://lore.kernel.org/r/E1r6VHq-00DDLT-In@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski

net: phy: marvell10g: fix 88x3310 power up

2023-07-23T10:47:07+00:00

Clear MV_V2_PORT_CTRL_PWRDOWN bit to set power up for 88x3310 PHY,
it sometimes does not take effect immediately. And a read of this
register causes the bit not to clear. This will cause mv3310_reset()
to time out, which will fail the config initialization. So add a delay
before the next access.

Fixes: c9cc1c815d36 ("net: phy: marvell10g: place in powersave mode at probe")
Signed-off-by: Jiawen Wu 
Reviewed-by: Russell King (Oracle) 
Signed-off-by: David S. Miller

net: phy: marvell: constify pointers to hwmon_channel_info

2023-04-10T02:02:09+00:00

Statically allocated array of pointed to hwmon_channel_info can be made
const for safety.

Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Andrew Lunn 
Link: https://lore.kernel.org/r/20230407145911.79642-5-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski

net: phy: marvell10g: select host interface configuration

2022-10-03T10:08:32+00:00

Select the host interface configuration according to the capabilities of
the host if the host provided them. This is currently provided only when
connecting PHY that is inside a SFP.

The PHY supports several configurations of host communication:
- always communicate with host in 10gbase-r, even if copper speed is
  lower (rate matching mode),
- the same as above but use xaui/rxaui instead of 10gbase-r,
- switch host SerDes mode between 10gbase-r, 5gbase-r, 2500base-x and
  sgmii according to copper speed,
- the same as above but use xaui/rxaui instead of 10gbase-r.

This mode of host communication, called MACTYPE, is by default selected
by strapping pins, but it can be changed in software.

This adds support for selecting this mode according to which modes are
supported by the host.

This allows the kernel to:
- support SFP modules with 88X33X0 or 88E21X0 inside them

Note: we use mv3310_select_mactype() for both 88X3310 and 88X3340,
although 88X3340 does not support XAUI. This is not a problem because
88X3340 does not declare XAUI in it's supported_interfaces, and so this
function will never choose that MACTYPE.

Signed-off-by: Russell King 
[ rebase, updated, also added support for 88E21X0 ]
Signed-off-by: Marek Behún 
Signed-off-by: David S. Miller

net: phy: marvell10g: Use tabs instead of spaces for indentation

2022-10-03T10:08:32+00:00

Some register definitions were defined with spaces used for indentation.
Change them to tabs.

Signed-off-by: Marek Behún 
Reviewed-by: Russell King (Oracle) 
Signed-off-by: David S. Miller

net: sfp: augment SFP parsing with phy_interface_t bitmap

2022-10-03T10:08:32+00:00

We currently parse the SFP EEPROM to a bitmap of ethtool link modes,
and then attempt to convert the link modes to a PHY interface mode.
While this works at present, there are cases where this is sub-optimal.
For example, where a module can operate with several different PHY
interface modes.

To start addressing this, arrange for the SFP EEPROM parsing to also
provide a bitmap of the possible PHY interface modes.

Signed-off-by: Russell King 
Signed-off-by: Marek Behún 
Signed-off-by: David S. Miller

net: phy: marvell10g: fix return value on error

2022-04-26T09:46:18+00:00

Return back the error value that we get from phy_read_mmd().

Fixes: c84786fa8f91 ("net: phy: marvell10g: read copper results from CSSR1")
Signed-off-by: Baruch Siach 
Reviewed-by: Marek Behún 
Reviewed-by: Russell King (Oracle) 
Link: https://lore.kernel.org/r/f47cb031aeae873bb008ba35001607304a171a20.1650868058.git.baruch@tkos.co.il
Signed-off-by: Paolo Abeni