xa_alloc_cyclic() can return 1, which isn't an error. To prevent
situation when the caller of this function will treat it as no error do
a check only for negative here.
Fixes: 3849687869 ("net: phy: Introduce ethernet link topology representation")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should not be configuring the PHYs clock-stop settings unless the
MAC supports phylink managed EEE. Make this dependent on MAC support.
This was noticed in a suspicious RCU usage report from the kernel
test robot (the suspicious RCU usage due to calling phy_detach()
remains unaddressed, but is triggered by the error this was
generating.)
Fixes: 03abf2a7c6 ("net: phylink: add EEE management")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1tgjNn-003q0w-Pw@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In application note (AN13663) for TJA1120, on page 30, there's a figure
with average PHY startup timing values following software reset.
The time it takes for SMI to become operational after software reset
ranges roughly from 500 us to 1500 us.
This commit adds 2000 us delay after MDIO write which triggers software
reset. Without this delay, soft_reset function returns an error and
prevents successful PHY init.
Cc: stable@vger.kernel.org
Fixes: b050f2f15e ("phy: nxp-c45: add driver for tja1103")
Signed-off-by: Milos Reljin <milos_reljin@outlook.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/AM8P250MB0124D258E5A71041AF2CC322E1E32@AM8P250MB0124.EURP250.PROD.OUTLOOK.COM
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When using temperature measurement on Marvell 88Q2XXX devices and the
reset-gpios property is set in DT, the device does a hardware reset when
interface is brought down and up again. That means that the content of
the register MDIO_MMD_PCS_MV_TEMP_SENSOR2 is reset to default and that
leads to permanent deactivation of the temperature measurement, because
activation is done in mv88q2xxx_probe. To fix this move activation of
temperature measurement to mv88q222x_config_init.
Fixes: a557a92e68 ("net: phy: marvell-88q2xxx: add support for temperature sensor")
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250118-marvell-88q2xxx-fix-hwmon-v2-1-402e62ba2dcb@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
HWMON support has been added for the RTL8221/8251 PHYs integrated together
with the MAC inside the RTL8125/8126 chips. This patch extends temperature
reading support for standalone variants of the mentioned PHYs.
I don't know whether the earlier revisions of the RTL8226 also have a
built-in temperature sensor, so they have been skipped for now.
Tested on RTL8221B-VB-CG.
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Clear NBase-T link partner advertisement before calling
rtlgen_read_status() to avoid phy_resolve_aneg_linkmode() wrongly
setting speed and duplex.
This fixes bogus 2.5G/5G/10G link partner advertisement and thus
speed and duplex being set by phy_resolve_aneg_linkmode() due to stale
NBase-T lpa.
Fixes: 68d5cd09e8 ("net: phy: realtek: change order of calls in C22 read_status()")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
rtlgen_decode_physr() which sets master_slave_state isn't called in case
the link is down and other than rtlgen_read_status(),
rtl822x_c45_read_status() doesn't implicitely clear master_slave_state.
Avoid stale master_slave_state by always setting it to
MASTER_SLAVE_STATE_UNKNOWN in rtl822x_c45_read_status() in case the link
is down.
Fixes: 081c9c0265 ("net: phy: realtek: read duplex and gbit master from PHYSR register")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Only read 1000Base-T link partner advertisement if autonegotiation has
completed and otherwise 1000Base-T link partner advertisement bits.
This fixes bogus 1000Base-T link partner advertisement after link goes
down (eg. by disconnecting the wire).
Fixes: 5cb409b396 ("net: phy: realtek: clear 1000Base-T link partner advertisement")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add EEE management to phylink, making use of the phylib implementation.
This will only be used where a MAC driver populates the methods and
capabilities bitfield, otherwise we keep our old behaviour.
Phylink will keep track of the EEE configuration, including the clock
stop abilities at each end of the MAC to PHY link, programming the PHY
appropriately and preserving the LPI configuration should the PHY go
away.
Phylink will call into the MAC driver when LPI needs to be enabled or
disabled, with the requirement that the MAC have LPI disabled prior
to the netdev being brought up (in other words, it will only call
mac_disable_tx_lpi() if it has already called mac_enable_tx_lpi().)
Support for phylink managed EEE is enabled by populating both tx_lpi
MAC operations method pointers, and filling in both LPI interfaces
and capabilities. If the methods are provided but the LPI interfaces
or capabilities remain empty, this indicates to phylink that EEE is
implemented by the driver but the hardware it is driving does not
support EEE, and thus the ethtool set_eee() and get_eee() methods will
return EOPNOTSUPP.
No validation of the LPI timer value is performed by this patch.
For interface modes which do not support LPI, we make no attempt to
manipulate the phylib EEE advertisement, but instead refuse to
activate LPI at the MAC, noting it at debug message level.
We also restrict the advertisement and reported userspace support
linkmode masks according to the lpi_capabilities provided to
phylink by the MAC driver.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/E1tYADq-0014Pn-J1@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
