[ACCTON][AS9947-72XKB] Add new platform

packages/platforms/accton/x86-64/as9947-72xkb/.gitignore

@@ -0,0 +1,2 @@
+*x86*64*accton*as9947*72xkb*.mk
+onlpdump.mk

packages/platforms/accton/x86-64/as9947-72xkb/Makefile

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+include $(ONL)/make/pkg.mk

packages/platforms/accton/x86-64/as9947-72xkb/modules/Makefile

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+include $(ONL)/make/pkg.mk

packages/platforms/accton/x86-64/as9947-72xkb/modules/PKG.yml

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+!include $ONL_TEMPLATES/platform-modules.yml VENDOR=accton BASENAME=x86-64-accton-as9947-72xkb ARCH=amd64 KERNELS="onl-kernel-5.4-lts-x86-64-all:amd64"

packages/platforms/accton/x86-64/as9947-72xkb/modules/builds/.gitignore

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+lib

packages/platforms/accton/x86-64/as9947-72xkb/modules/builds/Makefile

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+KERNELS := onl-kernel-5.4-lts-x86-64-all:amd64
+KMODULES := src
+VENDOR := accton
+BASENAME := x86-64-accton-as9947-72xkb
+ARCH := x86_64
+include $(ONL)/make/kmodule.mk
+

packages/platforms/accton/x86-64/as9947-72xkb/modules/builds/src/Makefile

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+obj-m += accton_ipmi_intf.o
+obj-m += x86-64-accton-as9947-72xkb-i2c-ocores.o
+obj-m += x86-64-accton-as9947-72xkb-fpga.o
+obj-m += x86-64-accton-as9947-72xkb-fan.o
+obj-m += x86-64-accton-as9947-72xkb-thermal.o
+obj-m += x86-64-accton-as9947-72xkb-psu.o
+obj-m += x86-64-accton-as9947-72xkb-sys.o
+obj-m += x86-64-accton-as9947-72xkb-leds.o
+obj-m += x86-64-accton-as9947-72xkb-sfp.o
+

packages/platforms/accton/x86-64/as9947-72xkb/modules/builds/src/accton_ipmi_intf.c

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+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/*
+ * Copyright 2024 Accton Technology Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ *
+ * Description:
+ *  IPMI driver related interface implementation
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string_helpers.h>
+#include "accton_ipmi_intf.h"
+
+#define ACCTON_IPMI_NETFN 0x34
+#define IPMI_TIMEOUT (5 * HZ)
+#define IPMI_ERR_RETRY_TIMES 1
+#define RAW_CMD_BUF_SIZE 40
+
+static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data);
+
+/* Functions to talk to the IPMI layer */
+
+/* Initialize IPMI data structure and create a user interface for communication */
+int init_ipmi_data(struct ipmi_data *ipmi, int iface, struct device *dev)
+{
+	int err;
+
+	if (!ipmi || !dev)
+		return -EINVAL;
+
+	init_completion(&ipmi->read_complete);
+
+	// Initialize IPMI address
+	ipmi->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
+	ipmi->address.channel = IPMI_BMC_CHANNEL;
+	ipmi->address.data[0] = 0;
+	ipmi->interface = iface;
+	ipmi->dev = dev;	// Storing the device for future reference
+
+	// Initialize message buffers
+	ipmi->tx_msgid = 0;
+	ipmi->tx_message.netfn = ACCTON_IPMI_NETFN;
+
+	// Assign the message handler
+	ipmi->ipmi_hndlrs.ipmi_recv_hndl = ipmi_msg_handler;
+
+	// Create IPMI messaging interface user
+	err = ipmi_create_user(ipmi->interface, &ipmi->ipmi_hndlrs,
+			       ipmi, &ipmi->user);
+	if (err < 0) {
+		dev_err(dev,
+			"Unable to register user with IPMI interface %d, err: %d\n",
+			ipmi->interface, err);
+		return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(init_ipmi_data);
+
+/* Handler function for receiving IPMI messages */
+static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
+{
+	unsigned short rx_len;
+	struct ipmi_data *ipmi = user_msg_data;
+
+	// Check for message ID mismatch
+	if (msg->msgid != ipmi->tx_msgid) {
+		dev_err(ipmi->dev, "Mismatch between received msgid "
+			"(%02x) and transmitted msgid (%02x)!\n",
+			(int)msg->msgid, (int)ipmi->tx_msgid);
+		ipmi_free_recv_msg(msg);
+		return;
+	}
+
+	// Handle received message type
+	ipmi->rx_recv_type = msg->recv_type;
+
+	// Parse message data
+	if (msg->msg.data_len > 0)
+		ipmi->rx_result = msg->msg.data[0];
+	else
+		ipmi->rx_result = IPMI_UNKNOWN_ERR_COMPLETION_CODE;
+
+	// Copy remaining message data if available
+	if (msg->msg.data_len > 1) {
+		rx_len = msg->msg.data_len - 1;
+		if (ipmi->rx_msg_len < rx_len)
+			rx_len = ipmi->rx_msg_len;
+
+		ipmi->rx_msg_len = rx_len;
+		memcpy(ipmi->rx_msg_data, msg->msg.data + 1, ipmi->rx_msg_len);
+	} else {
+		ipmi->rx_msg_len = 0;
+	}
+
+	// Free the received message and signal completion
+	ipmi_free_recv_msg(msg);
+	complete(&ipmi->read_complete);
+}
+
+static void _ipmi_log_error(struct ipmi_data *ipmi, unsigned char cmd,
+			    unsigned char *tx_data, unsigned short tx_len,
+			    int status, int retry)
+{
+	int i, pos;
+	char *cmdline = NULL;
+	char raw_cmd[RAW_CMD_BUF_SIZE] = { 0 };
+
+	// Format the command and data into a raw command string
+	pos = snprintf(raw_cmd, sizeof(raw_cmd), "0x%02x", cmd);
+	for (i = 0; i < tx_len && pos < sizeof(raw_cmd); i++) {
+		pos += snprintf(raw_cmd + pos, sizeof(raw_cmd) - pos,
+				     " 0x%02x", tx_data[i]);
+	}
+
+	// Log the error message
+	cmdline = kstrdup_quotable_cmdline(current, GFP_KERNEL);
+	dev_err(ipmi->dev,
+		"ipmi_send_message: retry(%d), error(%d), cmd(%s) raw_cmd=[%s]\r\n",
+		retry, status, cmdline ? cmdline : "", raw_cmd);
+
+	if (cmdline) {
+		kfree(cmdline);
+	}
+}
+
+/* Send an IPMI command */
+static int _ipmi_send_message(struct ipmi_data *ipmi, unsigned char cmd,
+			      unsigned char *tx_data, unsigned short tx_len,
+			      unsigned char *rx_data, unsigned short rx_len)
+{
+	int err;
+
+	// Validate the input parameters
+	if ((tx_len && !tx_data) || (rx_len && !rx_data)) {
+		return -EINVAL;
+	}
+
+	// Initialize IPMI message
+	ipmi->tx_message.cmd = cmd;
+	ipmi->tx_message.data = tx_len ? tx_data : NULL;
+	ipmi->tx_message.data_len = tx_len;
+	ipmi->rx_msg_data = rx_len ? rx_data : NULL;
+	ipmi->rx_msg_len = rx_len;
+
+	// Validate the IPMI address
+	err = ipmi_validate_addr(&ipmi->address, sizeof(ipmi->address));
+	if (err) {
+		dev_err(ipmi->dev, "Invalid IPMI address: %x\n", err);
+		return err;
+	}
+
+	// Increment message ID and send the request
+	ipmi->tx_msgid++;
+	err = ipmi_request_settime(ipmi->user, &ipmi->address, ipmi->tx_msgid,
+				   &ipmi->tx_message, ipmi, 0, 0, 0);
+	if (err) {
+		dev_err(ipmi->dev, "IPMI request_settime failed: %x\n", err);
+		return err;
+	}
+
+	// Wait for the message to complete
+	err = wait_for_completion_timeout(&ipmi->read_complete, IPMI_TIMEOUT);
+	if (!err) {
+		dev_err(ipmi->dev, "IPMI command timeout\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+/* Send an IPMI command to the IPMI device and receive the response */
+int ipmi_send_message(struct ipmi_data *ipmi, unsigned char cmd,
+		      unsigned char *tx_data, unsigned short tx_len,
+		      unsigned char *rx_data, unsigned short rx_len)
+{
+	int status = 0, retry = 0;
+
+	// Validate the input parameters
+	if ((tx_len && !tx_data) || (rx_len && !rx_data)) {
+		return -EINVAL;
+	}
+
+	for (retry = 0; retry <= IPMI_ERR_RETRY_TIMES; retry++) {
+		status = _ipmi_send_message(ipmi, cmd, tx_data, tx_len, rx_data, rx_len);
+		if (unlikely(status != 0)) {
+			_ipmi_log_error(ipmi, cmd, tx_data, tx_len, status, retry);
+			continue;
+		}
+
+		if (unlikely(ipmi->rx_result != 0)) {
+			_ipmi_log_error(ipmi, cmd, tx_data, tx_len, status, retry);
+			continue;
+		}
+
+		// Success, exit the retry loop
+		break;
+	}
+
+	return status;
+}
+
+EXPORT_SYMBOL(ipmi_send_message);
+
+static int __init ipmi_module_init(void)
+{
+	printk(KERN_INFO "Accton IPMI Module loaded\n");
+	return 0;
+}
+
+static void __exit ipmi_module_exit(void)
+{
+	printk(KERN_INFO "Accton IPMI Module unloaded\n");
+}
+
+module_init(ipmi_module_init);
+module_exit(ipmi_module_exit);
+
+MODULE_AUTHOR("Brandon Chuang <brandon_chuang@accton.com.tw>");
+MODULE_DESCRIPTION("Accton IPMI messaging module");
+MODULE_LICENSE("GPL");

packages/platforms/accton/x86-64/as9947-72xkb/modules/builds/src/accton_ipmi_intf.h

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+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/*
+ * Copyright 2024 Accton Technology Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ *
+ * Description:
+ *  IPMI driver related interface declarations
+ */
+
+#ifndef ACCTON_IPMI_INTF_H
+#define ACCTON_IPMI_INTF_H
+
+#include <linux/ipmi.h>
+#include <linux/ipmi_smi.h>
+
+/* Structure to hold IPMI (Intelligent Platform Management Interface) data */
+struct ipmi_data {
+    struct completion read_complete;         // Synchronization primitive for signaling message read completion
+    struct ipmi_addr address;                // Structure to store the IPMI system interface address
+    struct ipmi_user *user;                  // Pointer to IPMI user created by the kernel
+    int interface;                           // Interface identifier for the IPMI system
+
+    struct kernel_ipmi_msg tx_message;       // Message structure for sending IPMI commands
+    long tx_msgid;                           // Message ID for tracking IPMI message transactions
+
+    void *rx_msg_data;                       // Pointer to buffer for storing received IPMI message data
+    unsigned short rx_msg_len;               // Length of the received IPMI message
+    unsigned char rx_result;                 // Result code from the received IPMI message
+    int rx_recv_type;                        // Type of the received message (e.g., system interface, LAN, etc.)
+
+    struct ipmi_user_hndl ipmi_hndlrs;       // IPMI handler structure for handling incoming IPMI messages
+    struct device *dev;                      // Device structure for logging errors
+};
+
+/* Function declarations */
+
+/* 
+ * Initialize IPMI data structure and create a user interface for communication.
+ * 
+ * @param ipmi: Pointer to ipmi_data structure to be initialized.
+ * @param iface: IPMI interface identifier.
+ * @param dev: Device structure for logging errors.
+ * @return 0 on success, or an error code on failure.
+ */
+extern int init_ipmi_data(struct ipmi_data *ipmi, int iface, struct device *dev);
+
+/* 
+ * Send an IPMI command to the IPMI device and receive the response.
+ * 
+ * @param ipmi: Pointer to ipmi_data structure containing IPMI communication information.
+ * @param cmd: IPMI command byte.
+ * @param tx_data: Pointer to data buffer for the command payload.
+ * @param tx_len: Length of the command payload data.
+ * @param rx_data: Pointer to buffer for storing the response data.
+ * @param rx_len: Length of the response data buffer.
+ * @return 0 on success, or an error code on failure.
+ */
+extern int ipmi_send_message(struct ipmi_data *ipmi, unsigned char cmd,
+                             unsigned char *tx_data, unsigned short tx_len,
+                             unsigned char *rx_data, unsigned short rx_len);
+
+#endif /* ACCTON_IPMI_INTF_H */