[PATCH net-next 08/12] net: pse-pd: pd692x0: Add support for PSE PI priority feature

Kory Maincent
2024-10-02T16:29:12Z

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.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
drivers/net/pse-pd/pd692x0.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/drivers/net/pse-pd/pd692x0.c b/drivers/net/pse-pd/pd692x0.c
index 0af7db80b2f8..3a4a9836d621 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 +1508,7 @@ 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.pis_prio_max = 2;
ret = devm_pse_controller_register(dev, &priv->pcdev);
if (ret)
return dev_err_probe(dev, ret,

--
2.34.1