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[net-next,v8,05/17] net: pse-pd: Introduce PSE types enumeration

Message ID 20240414-feature_poe-v8-5-e4bf1e860da5@bootlin.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series [net-next,v8,01/17] MAINTAINERS: net: Add Oleksij to pse-pd maintainers | expand

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Context Check Description
netdev/series_format fail Series does not have a cover letter; Series longer than 15 patches (and no cover letter)
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; GEN HAS DIFF 2 files changed, 96 insertions(+), 39 deletions(-);
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 2572 this patch: 2572
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/build_clang success Errors and warnings before: 1006 this patch: 1006
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 2753 this patch: 2753
netdev/checkpatch warning CHECK: From:/Signed-off-by: email comments mismatch: 'From: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>' != 'Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>'
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 6 this patch: 6
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-04-15--15-00 (tests: 961)

Commit Message

Kory Maincent April 14, 2024, 2:21 p.m. UTC 
From: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>

Introduce an enumeration to define PSE types (C33 or PoDL),
utilizing a bitfield for potential future support of both types.
Include 'pse_get_types' helper for external access to PSE type info.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---

Changes in v2:
- Rename PSE_POE to PSE_C33 to have naming consistency.
- Use "static inline" instead of simple static in the header

Changes in v3:
- Move the pse_type enum in uapi.
- Replace pse_get_types helper by pse_has_podl and pse_has_c33.

Changes in v5:
- Move the pse types enum in ethtool.
- Add ethtool prefix to the value.

Changes in v6:
- Fix a kdoc nit.
---
 drivers/net/pse-pd/pse_core.c      | 12 ++++++++++++
 drivers/net/pse-pd/pse_regulator.c |  1 +
 include/linux/pse-pd/pse.h         | 15 +++++++++++++++
 include/uapi/linux/ethtool.h       | 12 ++++++++++++
 4 files changed, 40 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/pse-pd/pse_core.c b/drivers/net/pse-pd/pse_core.c
index 146b81f08a89..fed006cbc185 100644
--- a/drivers/net/pse-pd/pse_core.c
+++ b/drivers/net/pse-pd/pse_core.c
@@ -312,3 +312,15 @@  int pse_ethtool_set_config(struct pse_control *psec,
 	return err;
 }
 EXPORT_SYMBOL_GPL(pse_ethtool_set_config);
+
+bool pse_has_podl(struct pse_control *psec)
+{
+	return psec->pcdev->types & ETHTOOL_PSE_PODL;
+}
+EXPORT_SYMBOL_GPL(pse_has_podl);
+
+bool pse_has_c33(struct pse_control *psec)
+{
+	return psec->pcdev->types & ETHTOOL_PSE_C33;
+}
+EXPORT_SYMBOL_GPL(pse_has_c33);
diff --git a/drivers/net/pse-pd/pse_regulator.c b/drivers/net/pse-pd/pse_regulator.c
index 1dedf4de296e..547af384764b 100644
--- a/drivers/net/pse-pd/pse_regulator.c
+++ b/drivers/net/pse-pd/pse_regulator.c
@@ -116,6 +116,7 @@  pse_reg_probe(struct platform_device *pdev)
 	priv->pcdev.owner = THIS_MODULE;
 	priv->pcdev.ops = &pse_reg_ops;
 	priv->pcdev.dev = dev;
+	priv->pcdev.types = ETHTOOL_PSE_PODL;
 	ret = devm_pse_controller_register(dev, &priv->pcdev);
 	if (ret) {
 		dev_err(dev, "failed to register PSE controller (%pe)\n",
diff --git a/include/linux/pse-pd/pse.h b/include/linux/pse-pd/pse.h
index be4e5754eb24..19589571157f 100644
--- a/include/linux/pse-pd/pse.h
+++ b/include/linux/pse-pd/pse.h
@@ -77,6 +77,7 @@  struct pse_control;
  *            device tree to id as given to the PSE control ops
  * @nr_lines: number of PSE controls in this controller device
  * @lock: Mutex for serialization access to the PSE controller
+ * @types: types of the PSE controller
  */
 struct pse_controller_dev {
 	const struct pse_controller_ops *ops;
@@ -89,6 +90,7 @@  struct pse_controller_dev {
 			const struct of_phandle_args *pse_spec);
 	unsigned int nr_lines;
 	struct mutex lock;
+	enum ethtool_pse_types types;
 };
 
 #if IS_ENABLED(CONFIG_PSE_CONTROLLER)
@@ -108,6 +110,9 @@  int pse_ethtool_set_config(struct pse_control *psec,
 			   struct netlink_ext_ack *extack,
 			   const struct pse_control_config *config);
 
+bool pse_has_podl(struct pse_control *psec);
+bool pse_has_c33(struct pse_control *psec);
+
 #else
 
 static inline struct pse_control *of_pse_control_get(struct device_node *node)
@@ -133,6 +138,16 @@  static inline int pse_ethtool_set_config(struct pse_control *psec,
 	return -ENOTSUPP;
 }
 
+static inline bool pse_has_podl(struct pse_control *psec)
+{
+	return false;
+}
+
+static inline bool pse_has_c33(struct pse_control *psec)
+{
+	return false;
+}
+
 #endif
 
 #endif
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 29ac06d66228..baf2b8e0d72f 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -752,6 +752,18 @@  enum ethtool_module_power_mode {
 	ETHTOOL_MODULE_POWER_MODE_HIGH,
 };
 
+/**
+ * enum ethtool_pse_types - Types of PSE controller.
+ * @ETHTOOL_PSE_UNKNOWN: Type of PSE controller is unknown
+ * @ETHTOOL_PSE_PODL: PSE controller which support PoDL
+ * @ETHTOOL_PSE_C33: PSE controller which support Clause 33 (PoE)
+ */
+enum ethtool_pse_types {
+	ETHTOOL_PSE_UNKNOWN =	1 << 0,
+	ETHTOOL_PSE_PODL =	1 << 1,
+	ETHTOOL_PSE_C33 =	1 << 2,
+};
+
 /**
  * enum ethtool_c33_pse_admin_state - operational state of the PoDL PSE
  *	functions. IEEE 802.3-2022 30.9.1.1.2 aPSEAdminState