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Message-Id: <20240529-feature_poe_power_cap-v1-4-0c4b1d5953b8@bootlin.com>
Date: Wed, 29 May 2024 16:09:31 +0200
From: Kory Maincent <kory.maincent@...tlin.com>
To: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, Donald Hunter <donald.hunter@...il.com>,
Oleksij Rempel <o.rempel@...gutronix.de>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
Dent Project <dentproject@...uxfoundation.org>, kernel@...gutronix.de,
Kory Maincent <kory.maincent@...tlin.com>
Subject: [PATCH 4/8] net: pse-pd: pd692x0: Expand ethtool status message
From: "Kory Maincent (Dent Project)" <kory.maincent@...tlin.com>
This update expands pd692x0_ethtool_get_status() callback with newly
introduced details such as the detected class, current power delivered,
and a detailed status message.
Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
---
drivers/net/pse-pd/pd692x0.c | 96 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 96 insertions(+)
diff --git a/drivers/net/pse-pd/pd692x0.c b/drivers/net/pse-pd/pd692x0.c
index 6488b941703c..017a8efc43c4 100644
--- a/drivers/net/pse-pd/pd692x0.c
+++ b/drivers/net/pse-pd/pd692x0.c
@@ -73,6 +73,7 @@ enum {
PD692X0_MSG_SET_PORT_PARAM,
PD692X0_MSG_GET_PORT_STATUS,
PD692X0_MSG_DOWNLOAD_CMD,
+ PD692X0_MSG_GET_PORT_CLASS,
/* add new message above here */
PD692X0_MSG_CNT
@@ -149,6 +150,12 @@ static const struct pd692x0_msg pd692x0_msg_template_list[PD692X0_MSG_CNT] = {
.data = {0x16, 0x16, 0x99, 0x4e,
0x4e, 0x4e, 0x4e, 0x4e},
},
+ [PD692X0_MSG_GET_PORT_CLASS] = {
+ .key = PD692X0_KEY_REQ,
+ .sub = {0x05, 0xc4},
+ .data = {0x4e, 0x4e, 0x4e, 0x4e,
+ 0x4e, 0x4e, 0x4e, 0x4e},
+ },
};
static u8 pd692x0_build_msg(struct pd692x0_msg *msg, u8 echo)
@@ -435,6 +442,79 @@ static int pd692x0_pi_is_enabled(struct pse_controller_dev *pcdev, int id)
}
}
+struct pd692x0_status_msg {
+ int id;
+ const char msg[63];
+};
+
+static const struct pd692x0_status_msg pd692x0_status_msg_list[] = {
+ {.id = 0x06, .msg = "Port is off: Main supply voltage is high."},
+ {.id = 0x07, .msg = "Port is off: Main supply voltage is low."},
+ {.id = 0x08, .msg = "Port is off: Disable all ports pin is active."},
+ {.id = 0x0C, .msg = "Port is off: Non-existing port number."},
+ {.id = 0x11, .msg = "Port is yet undefined."},
+ {.id = 0x12, .msg = "Port is off: Internal hardware fault."},
+ {.id = 0x1A, .msg = "Port is off: User setting."},
+ {.id = 0x1B, .msg = "Port is off: Detection is in process."},
+ {.id = 0x1C, .msg = "Port is off: Non-802.3AF/AT powered device."},
+ {.id = 0x1E, .msg = "Port is off: Underload state."},
+ {.id = 0x1F, .msg = "Port is off: Overload state."},
+ {.id = 0x20, .msg = "Port is off: Power budget exceeded."},
+ {.id = 0x21, .msg = "Port is off: Internal hardware routing error."},
+ {.id = 0x22, .msg = "Port is off: Configuration change."},
+ {.id = 0x24, .msg = "Port is off: Voltage injection into the port."},
+ {.id = 0x25, .msg = "Port is off: Improper Capacitor Detection"},
+ {.id = 0x26, .msg = "Port is off: Discharged load."},
+ {.id = 0x34, .msg = "Port is off: Short condition."},
+ {.id = 0x35, .msg = "Port is off: Over temperature at the port."},
+ {.id = 0x36, .msg = "Port is off: Device is too hot."},
+ {.id = 0x37, .msg = "Unknown device port status."},
+ {.id = 0x3C, .msg = "Power Management-Static."},
+ {.id = 0x3D, .msg = "Power Management-Static\u2014OVL."},
+ {.id = 0x41, .msg = "Power denied: Hardware power limit."},
+ {.id = 0x43, .msg = "Port is off: Class error."},
+ {.id = 0x44, .msg = "Port turn off during Host crash."},
+ {.id = 0x45, .msg = "Delivered power port was forced to be shut down at host crash."},
+ {.id = 0x46, .msg = "An enabled port was forced to be shut down at Host crash."},
+ {.id = 0x47, .msg = "Force Power Crash Error."},
+ {.id = 0x48, .msg = "Port is off: Recovery UDL."},
+ {.id = 0x49, .msg = "Port is off: Recovery PG Event."},
+ {.id = 0x4A, .msg = "Port is off: Recovery OVL."},
+ {.id = 0x4B, .msg = "Port is off: Recovery SC."},
+ {.id = 0x4C, .msg = "Port is off: Recovery Voltage injection."},
+ {.id = 0x80, .msg = "2P Port delivering non-IEEE."},
+ {.id = 0x81, .msg = "2P Port delivering IEEE."},
+ {.id = 0x82, .msg = "4P Port that deliver only 2 Pair non-IEEE."},
+ {.id = 0x83, .msg = "4P Port delivering 2P non-IEEE."},
+ {.id = 0x84, .msg = "4P Port delivering 4P non-IEEE."},
+ {.id = 0x85, .msg = "4P Port delivering 2P IEEE SSPD."},
+ {.id = 0x86, .msg = "4P Port delivering 4P IEEE SSPD."},
+ {.id = 0x87, .msg = "4P Port delivering 2P IEEE DSPD in the first phase."},
+ {.id = 0x88, .msg = "4P Port delivering 2P IEEE DSPD."},
+ {.id = 0x89, .msg = "4P Port delivering 4P IEEE DSPD."},
+ {.id = 0x90, .msg = "Force Power BT 2P."},
+ {.id = 0x91, .msg = "Force Power BT 4P."},
+ {.id = 0xA0, .msg = "Force Power BT error."},
+ {.id = 0xA7, .msg = "Connection Check error."},
+ {.id = 0xA8, .msg = "Open Port is not connected."},
+ { /* sentinel */ }
+};
+
+static const char *pd692x0_get_status_msg(int id)
+{
+ const struct pd692x0_status_msg *msg_list;
+
+ msg_list = pd692x0_status_msg_list;
+ while (msg_list->id) {
+ if (msg_list->id == id)
+ return msg_list->msg;
+
+ msg_list++;
+ }
+
+ return NULL;
+}
+
static int pd692x0_ethtool_get_status(struct pse_controller_dev *pcdev,
unsigned long id,
struct netlink_ext_ack *extack,
@@ -442,6 +522,7 @@ static int pd692x0_ethtool_get_status(struct pse_controller_dev *pcdev,
{
struct pd692x0_priv *priv = to_pd692x0_priv(pcdev);
struct pd692x0_msg msg, buf = {0};
+ u32 class;
int ret;
ret = pd692x0_fw_unavailable(priv);
@@ -471,6 +552,21 @@ static int pd692x0_ethtool_get_status(struct pse_controller_dev *pcdev,
priv->admin_state[id] = status->c33_admin_state;
+ status->c33_pw_status_msg = pd692x0_get_status_msg(buf.sub[0]);
+
+ status->c33_actual_pw = (buf.data[0] << 4 | buf.data[1]) * 100;
+
+ memset(&buf, 0, sizeof(buf));
+ msg = pd692x0_msg_template_list[PD692X0_MSG_GET_PORT_CLASS];
+ msg.sub[2] = id;
+ ret = pd692x0_sendrecv_msg(priv, &msg, &buf);
+ if (ret < 0)
+ return ret;
+
+ class = buf.data[3] >> 4;
+ if (class <= 8)
+ status->c33_pw_class = class;
+
return 0;
}
--
2.34.1
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