| 8f3d044b | 13-Oct-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: pd692x0: Preserve PSE configuration across reboots
Detect when PSE hardware is already configured (user byte == 42) and
skip hardware initialization to prevent power interruption to con
net: pse-pd: pd692x0: Preserve PSE configuration across reboots
Detect when PSE hardware is already configured (user byte == 42) and
skip hardware initialization to prevent power interruption to connected
devices during system reboots.
Previously, the driver would always reconfigure the PSE hardware on
probe, causing a port matrix reflash that resulted in temporary power
loss to all connected devices. This change maintains power continuity
by preserving existing configuration when the PSE has been previously
initialized.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013-feature_pd692x0_reboot_keep_conf-v2-3-68ab082a93dd@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| 6fa1f8b6 | 13-Oct-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: pd692x0: Separate configuration parsing from hardware setup
Cache the port matrix configuration in driver private data to enable
PSE controller reconfiguration. This refactoring separat
net: pse-pd: pd692x0: Separate configuration parsing from hardware setup
Cache the port matrix configuration in driver private data to enable
PSE controller reconfiguration. This refactoring separates device tree
parsing from hardware configuration application, allowing settings to be
reapplied without reparsing the device tree.
This refactoring is a prerequisite for preserving PSE configuration
across reboots to prevent power disruption to connected devices.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013-feature_pd692x0_reboot_keep_conf-v2-2-68ab082a93dd@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| 7ef35387 | 20-Aug-2025 |
Kory Maincent <kory.maincent@bootlin.com> |
net: pse-pd: pd692x0: Skip power budget configuration when undefined
If the power supply's power budget is not defined in the device tree,
the current code still requests power and configures the PS
net: pse-pd: pd692x0: Skip power budget configuration when undefined
If the power supply's power budget is not defined in the device tree,
the current code still requests power and configures the PSE manager
with a 0W power limit, which is undesirable behavior.
Skip power budget configuration entirely when the budget is zero,
avoiding unnecessary power requests and preventing invalid 0W limits
from being set on the PSE manager.
Fixes: 359754013e6a ("net: pse-pd: pd692x0: Add support for PSE PI priority feature")
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250820133321.841054-1-kory.maincent@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| 56cfc976 | 17-Jun-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: tps23881: Add support for static port priority feature
This patch enhances PSE callbacks by introducing support for the static
port priority feature. It extends interrupt management to
net: pse-pd: tps23881: Add support for static port priority feature
This patch enhances PSE callbacks by introducing support for the static
port priority feature. It extends interrupt management to handle and report
detection, classification, and disconnection events. Additionally, it
introduces the pi_get_pw_req() callback, which provides information about
the power requested by the Powered Devices.
Interrupt support is essential for the proper functioning of the TPS23881
controller. Without it, after a power-on (PWON), the controller will
no longer perform detection and classification. This could lead to
potential hazards, such as connecting a non-PoE device after a PoE device,
which might result in magic smoke.
Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-12-78a1a645e2ee@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| 24a4e3a0 | 17-Jun-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: pd692x0: Add support for controller and manager power supplies
Add support for managing the VDD and VDDA power supplies for the PD692x0
PSE controller, as well as the VAUX5 and VAUX3P3
net: pse-pd: pd692x0: Add support for controller and manager power supplies
Add support for managing the VDD and VDDA power supplies for the PD692x0
PSE controller, as well as the VAUX5 and VAUX3P3 power supplies for the
PD6920x PSE managers.
Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-10-78a1a645e2ee@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| 35975401 | 17-Jun-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: pd692x0: Add support for PSE PI priority feature
This patch extends the PSE callbacks by adding support for the newly
introduced pi_set_prio() callback, enabling the configuration of PS
net: pse-pd: pd692x0: Add support for PSE PI priority feature
This patch extends the PSE callbacks by adding support for the newly
introduced pi_set_prio() callback, enabling the configuration of PSE PI
priorities. The current port priority is now also included in the status
information returned to users.
Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-9-78a1a645e2ee@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| ffef61d6 | 17-Jun-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: Add support for budget evaluation strategies
This patch introduces the ability to configure the PSE PI budget evaluation
strategies. Budget evaluation strategies is utilized by PSE cont
net: pse-pd: Add support for budget evaluation strategies
This patch introduces the ability to configure the PSE PI budget evaluation
strategies. Budget evaluation strategies is utilized by PSE controllers to
determine which ports to turn off first in scenarios such as power budget
exceedance.
The pis_prio_max value is used to define the maximum priority level
supported by the controller. Both the current priority and the maximum
priority are exposed to the user through the pse_ethtool_get_status call.
This patch add support for two mode of budget evaluation strategies.
1. Static Method:
This method involves distributing power based on PD classification.
It’s straightforward and stable, the PSE core keeping track of the
budget and subtracting the power requested by each PD’s class.
Advantages: Every PD gets its promised power at any time, which
guarantees reliability.
Disadvantages: PD classification steps are large, meaning devices
request much more power than they actually need. As a result, the power
supply may only operate at, say, 50% capacity, which is inefficient and
wastes money.
Priority max value is matching the number of PSE PIs within the PSE.
2. Dynamic Method:
To address the inefficiencies of the static method, vendors like
Microchip have introduced dynamic power budgeting, as seen in the
PD692x0 firmware. This method monitors the current consumption per port
and subtracts it from the available power budget. When the budget is
exceeded, lower-priority ports are shut down.
Advantages: This method optimizes resource utilization, saving costs.
Disadvantages: Low-priority devices may experience instability.
Priority max value is set by the PSE controller driver.
For now, budget evaluation methods are not configurable and cannot be
mixed. They are hardcoded in the PSE driver itself, as no current PSE
controller supports both methods.
Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-7-78a1a645e2ee@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| c394e757 | 17-Jun-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: Add helper to report hardware enable status of the PI
Refactor code by introducing a helper function to retrieve the hardware
enabled state of the PI, avoiding redundant implementations
net: pse-pd: Add helper to report hardware enable status of the PI
Refactor code by introducing a helper function to retrieve the hardware
enabled state of the PI, avoiding redundant implementations in the
future.
Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-6-78a1a645e2ee@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| 1176978e | 17-Jun-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: ethtool: Add support for new power domains index description
Report the index of the newly introduced PSE power domain to the user,
enabling improved management of the power budget for PSE devi
net: ethtool: Add support for new power domains index description
Report the index of the newly introduced PSE power domain to the user,
enabling improved management of the power budget for PSE devices.
Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-5-78a1a645e2ee@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| 50f8b341 | 17-Jun-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: Add support for PSE power domains
Introduce PSE power domain support as groundwork for upcoming port
priority features. Multiple PSE PIs can now be grouped under a single
PSE power doma
net: pse-pd: Add support for PSE power domains
Introduce PSE power domain support as groundwork for upcoming port
priority features. Multiple PSE PIs can now be grouped under a single
PSE power domain, enabling future enhancements like defining available
power budgets, port priority modes, and disconnection policies. This
setup will allow the system to assess whether activating a port would
exceed the available power budget, preventing over-budget states
proactively.
Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-4-78a1a645e2ee@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| f5e7aeca | 17-Jun-2025 |
Kory Maincent (Dent Project) <kory.maincent@bootlin.com> |
net: pse-pd: tps23881: Add support for PSE events and interrupts
Add support for PSE event reporting through interrupts. Set up the newly
introduced devm_pse_irq_helper helper to register the interr
net: pse-pd: tps23881: Add support for PSE events and interrupts
Add support for PSE event reporting through interrupts. Set up the newly
introduced devm_pse_irq_helper helper to register the interrupt. Events are
reported for over-current and over-temperature conditions.
Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250617-feature_poe_port_prio-v14-3-78a1a645e2ee@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| 5385f1e1 | 10-Jan-2025 |
Kory Maincent <kory.maincent@bootlin.com> |
net: pse-pd: Clean ethtool header of PSE structures
Remove PSE-specific structures from the ethtool header to improve code
modularity, maintain independent headers, and reduce incremental build
time
net: pse-pd: Clean ethtool header of PSE structures
Remove PSE-specific structures from the ethtool header to improve code
modularity, maintain independent headers, and reduce incremental build
time.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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| 10276f3e | 10-Jan-2025 |
Kory Maincent <kory.maincent@bootlin.com> |
net: pse-pd: Fix missing PI of_node description
The PI of_node was not assigned in the regulator_config structure, leading
to failures in resolving the correct supply when different power supplies
a
net: pse-pd: Fix missing PI of_node description
The PI of_node was not assigned in the regulator_config structure, leading
to failures in resolving the correct supply when different power supplies
are assigned to multiple PIs of a PSE controller. This fix ensures that the
of_node is properly set in the regulator_config, allowing accurate supply
resolution for each PI.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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| 7f076ce3 | 10-Jan-2025 |
Kory Maincent <kory.maincent@bootlin.com> |
net: pse-pd: tps23881: Add support for power limit and measurement features
Expand PSE callbacks to support the newly introduced
pi_get/set_pw_limit() and pi_get_voltage() functions. These callbacks
net: pse-pd: tps23881: Add support for power limit and measurement features
Expand PSE callbacks to support the newly introduced
pi_get/set_pw_limit() and pi_get_voltage() functions. These callbacks
allow for power limit configuration in the TPS23881 controller.
Additionally, the patch includes the pi_get_pw_class() the
pi_get_actual_pw(), and the pi_get_pw_limit_ranges') callbacks providing
more comprehensive PoE status reporting.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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| 4640a1f0 | 10-Jan-2025 |
Kory Maincent <kory.maincent@bootlin.com> |
net: pse-pd: Remove is_enabled callback from drivers
The is_enabled callback is now redundant as the admin_state can be obtained
directly from the driver and provides the same information.
To simpl
net: pse-pd: Remove is_enabled callback from drivers
The is_enabled callback is now redundant as the admin_state can be obtained
directly from the driver and provides the same information.
To simplify functionality, the core will handle this internally, making
the is_enabled callback unnecessary at the driver level. Remove the
callback from all drivers.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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