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[RFC,net-next,v2,18/18] net: pse-pd: pd692x0: Add support for PSE PI priority feature

Message ID 20241030-feature_poe_port_prio-v2-18-9559622ee47a@bootlin.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series Add support for PSE port priority | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches
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, 142 insertions(+);
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: 5 this patch: 5
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 3 this patch: 3
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: 4 this patch: 4
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: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Kory Maincent Oct. 30, 2024, 4:53 p.m. UTC 
From: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>

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.

Reviewed-by: Kyle Swenson <kyle.swenson@est.tech>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
 drivers/net/pse-pd/pd692x0.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/pse-pd/pd692x0.c b/drivers/net/pse-pd/pd692x0.c
index 0af7db80b2f8..018b6559049f 100644
--- a/drivers/net/pse-pd/pd692x0.c
+++ b/drivers/net/pse-pd/pd692x0.c
@@ -685,6 +685,8 @@  static int pd692x0_ethtool_get_status(struct pse_controller_dev *pcdev,
 	if (ret < 0)
 		return ret;
 	status->c33_avail_pw_limit = ret;
+	/* PSE core priority start at 0 */
+	status->c33_prio = buf.data[2] - 1;
 
 	memset(&buf, 0, sizeof(buf));
 	msg = pd692x0_msg_template_list[PD692X0_MSG_GET_PORT_CLASS];
@@ -1061,6 +1063,25 @@  static int pd692x0_pi_set_current_limit(struct pse_controller_dev *pcdev,
 	return pd692x0_sendrecv_msg(priv, &msg, &buf);
 }
 
+static int pd692x0_pi_set_prio(struct pse_controller_dev *pcdev, int id,
+			       unsigned int prio)
+{
+	struct pd692x0_priv *priv = to_pd692x0_priv(pcdev);
+	struct pd692x0_msg msg, buf = {0};
+	int ret;
+
+	ret = pd692x0_fw_unavailable(priv);
+	if (ret)
+		return ret;
+
+	msg = pd692x0_msg_template_list[PD692X0_MSG_SET_PORT_PARAM];
+	msg.sub[2] = id;
+	/* Controller priority from 1 to 3 */
+	msg.data[4] = prio + 1;
+
+	return pd692x0_sendrecv_msg(priv, &msg, &buf);
+}
+
 static const struct pse_controller_ops pd692x0_ops = {
 	.setup_pi_matrix = pd692x0_setup_pi_matrix,
 	.ethtool_get_status = pd692x0_ethtool_get_status,
@@ -1070,6 +1091,7 @@  static const struct pse_controller_ops pd692x0_ops = {
 	.pi_get_voltage = pd692x0_pi_get_voltage,
 	.pi_get_current_limit = pd692x0_pi_get_current_limit,
 	.pi_set_current_limit = pd692x0_pi_set_current_limit,
+	.pi_set_prio = pd692x0_pi_set_prio,
 };
 
 #define PD692X0_FW_LINE_MAX_SZ 0xff
@@ -1486,6 +1508,8 @@  static int pd692x0_i2c_probe(struct i2c_client *client)
 	priv->pcdev.ops = &pd692x0_ops;
 	priv->pcdev.dev = dev;
 	priv->pcdev.types = ETHTOOL_PSE_C33;
+	priv->pcdev.port_prio_supp_modes = BIT(ETHTOOL_PSE_PORT_PRIO_DYNAMIC);
+	priv->pcdev.pis_prio_max = 2;
 	ret = devm_pse_controller_register(dev, &priv->pcdev);
 	if (ret)
 		return dev_err_probe(dev, ret,