[PDDF] Add multi PCIE FPGA controlled PSU

platform/pddf/i2c/debian/rules

@@ -19,7 +19,7 @@ PACKAGE_PRE_NAME := sonic-platform-pddf
 KVERSION   ?= $(shell uname -r)
 KERNEL_SRC :=  /lib/modules/$(KVERSION)
 MOD_SRC_DIR:= $(shell pwd)
-MODULE_DIRS:= client cpld cpld/driver cpldmux cpldmux/driver fpgai2c fpgai2c/driver fpgapci fpgapci/driver fpgapci/algos fan fan/driver mux gpio led psu psu/driver sysstatus xcvr xcvr/driver
+MODULE_DIRS:= client cpld cpld/driver cpldmux cpldmux/driver fpgai2c fpgai2c/driver fpgapci fpgapci/driver fpgapci/algos multifpgapci multifpgapci/driver multifpgapci/i2c fan fan/driver mux gpio led psu psu/driver sysstatus xcvr xcvr/driver
 MODULE_DIR:= modules
 UTILS_DIR := utils
 SERVICE_DIR := service

platform/pddf/i2c/modules/Makefile

@@ -1 +1 @@
-obj-m := client/ cpld/ cpldmux/ fpgai2c/ fpgapci/ xcvr/ mux/ gpio/ psu/ fan/ led/ sysstatus/
+obj-m := client/ cpld/ cpldmux/ fpgai2c/ fpgapci/ multifpgapci/ xcvr/ mux/ gpio/ psu/ fan/ led/ sysstatus/

platform/pddf/i2c/modules/client/pddf_client_module.c

@@ -179,12 +179,12 @@ ssize_t store_pddf_data(struct device *dev, struct device_attribute *da, const c
                 *(int *)(ptr->addr) = num;
             break;
         case PDDF_USHORT:
-            ret = kstrtoint(buf,16,&num);
+            ret = kstrtouint(buf,16,&num);
             if (ret==0)
                 *(unsigned short *)(ptr->addr) = (unsigned short)num;
             break;
         case PDDF_UINT32:
-            ret = kstrtoint(buf,16,&num);
+            ret = kstrtouint(buf,16,&num);
             if (ret==0)
                 *(uint32_t *)(ptr->addr) = (uint32_t)num;
             break;

platform/pddf/i2c/modules/include/pddf_client_defs.h

@@ -34,6 +34,7 @@
 #define SYSSTATUS "PDDF_SYSSTATUS"
 #define XCVR "PDDF_XCVR"
 #define FPGA "PDDF_FPGAPCI"
+#define MULTIFPGA "PDDF_MULTIFPGAPCI"
 
 
 #define PDDF_DEBUG

platform/pddf/i2c/modules/include/pddf_i2c_algo.h

@@ -9,7 +9,7 @@
 #include "pddf_client_defs.h"
 
 /* max number of adapters */
-#define I2C_PCI_MAX_BUS 16
+#define I2C_PCI_MAX_BUS 512
 
 /**
  * struct fpgapci_devdata - PCI device data structure

platform/pddf/i2c/modules/include/pddf_multifpgapci_defs.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2025 Nexthop Systems Inc.
+ *
+ * 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:
+ *	Platform MULTIFPGAPCI defines/structures header file
+ */
+
+#ifndef __PDDF_MULTIFPGAPCI_DEFS_H__
+#define __PDDF_MULTIFPGAPCI_DEFS_H__
+
+#include "linux/types.h"
+#include <linux/pci.h>
+
+#include "pddf_multifpgapci_i2c_defs.h"
+
+#define NAME_SIZE 32
+#define KOBJ_FREE(obj) \
+	if (obj)       \
+		kobject_put(obj);
+
+struct pddf_multifpgapci_drvdata {
+	struct pci_dev *pci_dev;
+	resource_size_t bar_start;
+	void *__iomem fpga_data_base_addr;
+	// i2c
+	size_t bar_length;
+	struct kobject *i2c_kobj;
+	struct i2c_adapter_drvdata i2c_adapter_drvdata;
+	bool i2c_adapter_drvdata_initialized;
+};
+
+// FPGA
+typedef struct {
+	uint32_t data_base_offset;
+	uint32_t data_size;
+} FPGA_OPS_DATA;
+
+struct pddf_multi_fpgapci_ops_t {
+	int (*post_device_operation)(struct pci_dev *);
+};
+
+extern struct pddf_multi_fpgapci_ops_t pddf_multi_fpgapci_ops;
+
+extern int (*ptr_multifpgapci_readpci)(struct pci_dev *, uint32_t, uint32_t *);
+extern int (*ptr_multifpgapci_writepci)(struct pci_dev *, uint32_t, uint32_t);
+
+#endif

platform/pddf/i2c/modules/include/pddf_multifpgapci_i2c_defs.h

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2025 Nexthop Systems Inc.
+ *
+ * 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.
+ */
+
+#ifndef __PDDF_MULTIFPGAPCI_I2C_DEFS_H__
+#define __PDDF_MULTIFPGAPCI_I2C_DEFS_H__
+
+#include <linux/i2c.h>
+#include "linux/types.h"
+#include <linux/kobject.h>
+#include <linux/pci.h>
+#include <linux/sysfs.h>
+
+#include "pddf_client_defs.h"
+
+#define I2C_PCI_MAX_BUS 512
+
+struct i2c_adapter_attrs {
+	PDDF_ATTR attr_virt_bus;
+	PDDF_ATTR attr_ch_base_offset;
+	PDDF_ATTR attr_ch_size;
+	PDDF_ATTR attr_num_virt_ch;
+	PDDF_ATTR attr_new_i2c_adapter;
+	PDDF_ATTR attr_del_i2c_adapter;
+};
+
+#define NUM_I2C_ADAPTER_ATTRS \
+	(sizeof(struct i2c_adapter_attrs) / sizeof(PDDF_ATTR))
+
+struct i2c_adapter_sysfs_vals {
+	uint32_t virt_bus;
+	uint32_t ch_base_offset;
+	uint32_t ch_size;
+	uint32_t num_virt_ch;
+};
+
+struct i2c_adapter_drvdata {
+	// temp_sysfs_vals store temporary values provided by sysfs,
+	// which are eventually copied/saved to I2C adapter platform data.
+	struct i2c_adapter_sysfs_vals temp_sysfs_vals;
+
+	// platform data
+	struct i2c_adapter i2c_adapters[I2C_PCI_MAX_BUS];
+	bool i2c_adapter_registered[I2C_PCI_MAX_BUS];
+	int virt_bus;
+	void *__iomem ch_base_addr;
+	int ch_size;
+	int num_virt_ch;
+
+	// sysfs attrs
+	struct i2c_adapter_attrs attrs;
+	struct attribute *i2c_adapter_attrs[NUM_I2C_ADAPTER_ATTRS + 1];
+	struct attribute_group i2c_adapter_attr_group;
+};
+
+extern int pddf_multifpgapci_i2c_module_init(struct pci_dev *pci_dev,
+					     struct kobject *kobj);
+
+// Only called if multifpgapci_i2c_module_init succeeded
+extern void pddf_multifpgapci_i2c_module_exit(struct pci_dev *pci_dev,
+					      struct kobject *kobj);
+
+#endif

platform/pddf/i2c/modules/include/pddf_psu_defs.h

@@ -41,7 +41,6 @@ typedef struct PSU_DATA_ATTR
     uint32_t cmpval;
     uint32_t len;
     void *access_data;
-
 }PSU_DATA_ATTR;
 
 typedef struct PSU_SYSFS_ATTR_DATA

platform/pddf/i2c/modules/multifpgapci/Makefile

@@ -0,0 +1,4 @@
+obj-m := driver/ i2c/
+obj-m += pddf_multifpgapci_module.o
+
+ccflags-y:= -I$(M)/modules/include

platform/pddf/i2c/modules/multifpgapci/driver/Makefile

@@ -0,0 +1,4 @@
+TARGET = pddf_multifpgapci_driver
+obj-m := $(TARGET).o
+
+ccflags-y := -I$(M)/modules/include