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Message-Id: <20240607-feature_poe_power_cap-v2-4-c03c2deb83ab@bootlin.com>
Date: Fri, 07 Jun 2024 09:30:21 +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 net-next v2 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 extended state information.
Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
---
Change in v2:
- Move in from string status message to c33_pse_ext_state_info.
---
drivers/net/pse-pd/pd692x0.c | 92 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 92 insertions(+)
diff --git a/drivers/net/pse-pd/pd692x0.c b/drivers/net/pse-pd/pd692x0.c
index 6488b941703c..6b7367d009d6 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 +442,75 @@ static int pd692x0_pi_is_enabled(struct pse_controller_dev *pcdev, int id)
}
}
+struct pd692x0_pse_ext_state_mapping {
+ u32 status_code;
+ enum ethtool_c33_pse_ext_state pse_ext_state;
+ u8 pse_ext_substate;
+};
+
+static const struct pd692x0_pse_ext_state_mapping
+pd692x0_pse_ext_state_map[] = {
+ {0x06, ETHTOOL_C33_PSE_EXT_STATE_VOLTAGE_ISSUE,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_V_OVERVOLTAGE},
+ {0x07, ETHTOOL_C33_PSE_EXT_STATE_VOLTAGE_ISSUE,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_V_UNDERVOLTAGE},
+ {0x08, ETHTOOL_C33_PSE_EXT_STATE_HARDWARE_ISSUE, 0},
+ {0x0C, ETHTOOL_C33_PSE_EXT_STATE_CONFIG,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_CFG_UNDEFINED},
+ {0x11, ETHTOOL_C33_PSE_EXT_STATE_CONFIG,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_CFG_UNDEFINED},
+ {0x12, ETHTOOL_C33_PSE_EXT_STATE_HARDWARE_ISSUE, 0},
+ {0x1B, ETHTOOL_C33_PSE_EXT_STATE_DETECTION,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_DET_IN_PROGRESS},
+ {0x1C, ETHTOOL_C33_PSE_EXT_STATE_DETECTION,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_DET_FAILURE},
+ {0x1E, ETHTOOL_C33_PSE_EXT_STATE_CURRENT_ISSUE,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_CRT_UNDERLOAD},
+ {0x1F, ETHTOOL_C33_PSE_EXT_STATE_CURRENT_ISSUE,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_CRT_OVERLOAD},
+ {0x20, ETHTOOL_C33_PSE_EXT_STATE_POWER_BUDGET_EXCEEDED, 0},
+ {0x21, ETHTOOL_C33_PSE_EXT_STATE_HARDWARE_ISSUE, 0},
+ {0x22, ETHTOOL_C33_PSE_EXT_STATE_CONFIG,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_CFG_CHANGED},
+ {0x24, ETHTOOL_C33_PSE_EXT_STATE_VOLTAGE_ISSUE,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_V_INJECTION},
+ {0x25, ETHTOOL_C33_PSE_EXT_STATE_DETECTION,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_DET_FAILURE},
+ {0x26, ETHTOOL_C33_PSE_EXT_STATE_VOLTAGE_ISSUE, 0},
+ {0x34, ETHTOOL_C33_PSE_EXT_STATE_VOLTAGE_ISSUE,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_V_SHORT_DETECTED},
+ {0x35, ETHTOOL_C33_PSE_EXT_STATE_TEMP_ISSUE, 0},
+ {0x36, ETHTOOL_C33_PSE_EXT_STATE_TEMP_ISSUE, 0},
+ {0x37, ETHTOOL_C33_PSE_EXT_STATE_UNKNOWN, 0},
+ {0x3C, ETHTOOL_C33_PSE_EXT_STATE_POWER_BUDGET_EXCEEDED, 0},
+ {0x3D, ETHTOOL_C33_PSE_EXT_STATE_POWER_BUDGET_EXCEEDED, 0},
+ {0x41, ETHTOOL_C33_PSE_EXT_STATE_POWER_BUDGET_EXCEEDED, 0},
+ {0x43, ETHTOOL_C33_PSE_EXT_STATE_CLASSIFICATION_FAILURE, 0},
+ {0xA0, ETHTOOL_C33_PSE_EXT_STATE_HARDWARE_ISSUE, 0},
+ {0xA7, ETHTOOL_C33_PSE_EXT_STATE_DETECTION,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_DET_FAILURE},
+ {0xA8, ETHTOOL_C33_PSE_EXT_STATE_VOLTAGE_ISSUE,
+ ETHTOOL_C33_PSE_EXT_SUBSTATE_V_OPEN},
+ { /* sentinel */ }
+};
+
+static void
+pd692x0_get_ext_state(struct ethtool_c33_pse_ext_state_info *c33_ext_state_info,
+ u32 status_code)
+{
+ const struct pd692x0_pse_ext_state_mapping *ext_state_map;
+
+ ext_state_map = pd692x0_pse_ext_state_map;
+ while (ext_state_map->status_code) {
+ if (ext_state_map->status_code == status_code) {
+ c33_ext_state_info->c33_pse_ext_state = ext_state_map->pse_ext_state;
+ c33_ext_state_info->__c33_pse_ext_substate = ext_state_map->pse_ext_state;
+ return;
+ }
+ ext_state_map++;
+ }
+}
+
static int pd692x0_ethtool_get_status(struct pse_controller_dev *pcdev,
unsigned long id,
struct netlink_ext_ack *extack,
@@ -442,6 +518,7 @@ 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 +548,21 @@ static int pd692x0_ethtool_get_status(struct pse_controller_dev *pcdev,
priv->admin_state[id] = status->c33_admin_state;
+ pd692x0_get_ext_state(&status->c33_ext_state_info, 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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