1 files changed, 195 insertions, 0 deletions

diff --git a/include/net/devlink.h b/include/net/devlink.h
index e336ea9c73df..b9b89d6604d4 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -27,6 +27,9 @@ struct devlink {
         struct list_head sb_list;
         struct list_head dpipe_table_list;
         struct list_head resource_list;
+        struct list_head param_list;
+        struct list_head region_list;
+        u32 snapshot_id;
         struct devlink_dpipe_headers *dpipe_headers;
         const struct devlink_ops *ops;
         struct device *dev;
@@ -295,6 +298,115 @@ struct devlink_resource {
 
 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
 
+#define DEVLINK_PARAM_MAX_STRING_VALUE 32
+enum devlink_param_type {
+        DEVLINK_PARAM_TYPE_U8,
+        DEVLINK_PARAM_TYPE_U16,
+        DEVLINK_PARAM_TYPE_U32,
+        DEVLINK_PARAM_TYPE_STRING,
+        DEVLINK_PARAM_TYPE_BOOL,
+};
+
+union devlink_param_value {
+        u8 vu8;
+        u16 vu16;
+        u32 vu32;
+        const char *vstr;
+        bool vbool;
+};
+
+struct devlink_param_gset_ctx {
+        union devlink_param_value val;
+        enum devlink_param_cmode cmode;
+};
+
+/**
+ * struct devlink_param - devlink configuration parameter data
+ * @name: name of the parameter
+ * @generic: indicates if the parameter is generic or driver specific
+ * @type: parameter type
+ * @supported_cmodes: bitmap of supported configuration modes
+ * @get: get parameter value, used for runtime and permanent
+ *       configuration modes
+ * @set: set parameter value, used for runtime and permanent
+ *       configuration modes
+ * @validate: validate input value is applicable (within value range, etc.)
+ *
+ * This struct should be used by the driver to fill the data for
+ * a parameter it registers.
+ */
+struct devlink_param {
+        u32 id;
+        const char *name;
+        bool generic;
+        enum devlink_param_type type;
+        unsigned long supported_cmodes;
+        int (*get)(struct devlink *devlink, u32 id,
+                   struct devlink_param_gset_ctx *ctx);
+        int (*set)(struct devlink *devlink, u32 id,
+                   struct devlink_param_gset_ctx *ctx);
+        int (*validate)(struct devlink *devlink, u32 id,
+                        union devlink_param_value val,
+                        struct netlink_ext_ack *extack);
+};
+
+struct devlink_param_item {
+        struct list_head list;
+        const struct devlink_param *param;
+        union devlink_param_value driverinit_value;
+        bool driverinit_value_valid;
+};
+
+enum devlink_param_generic_id {
+        DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
+        DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
+        DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
+        DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
+
+        /* add new param generic ids above here*/
+        __DEVLINK_PARAM_GENERIC_ID_MAX,
+        DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
+};
+
+#define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
+#define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
+
+#define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
+#define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32
+
+#define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
+#define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL
+
+#define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
+#define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL
+
+#define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)      \
+{                                                                       \
+        .id = DEVLINK_PARAM_GENERIC_ID_##_id,                           \
+        .name = DEVLINK_PARAM_GENERIC_##_id##_NAME,                     \
+        .type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,                     \
+        .generic = true,                                                \
+        .supported_cmodes = _cmodes,                                    \
+        .get = _get,                                                    \
+        .set = _set,                                                    \
+        .validate = _validate,                                          \
+}
+
+#define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \
+{                                                                       \
+        .id = _id,                                                      \
+        .name = _name,                                                  \
+        .type = _type,                                                  \
+        .supported_cmodes = _cmodes,                                    \
+        .get = _get,                                                    \
+        .set = _set,                                                    \
+        .validate = _validate,                                          \
+}
+
+struct devlink_region;
+
+typedef void devlink_snapshot_data_dest_t(const void *data);
+
 struct devlink_ops {
         int (*reload)(struct devlink *devlink, struct netlink_ext_ack *extack);
         int (*port_type_set)(struct devlink_port *devlink_port,
@@ -430,6 +542,26 @@ void devlink_resource_occ_get_register(struct devlink *devlink,
                                        void *occ_get_priv);
 void devlink_resource_occ_get_unregister(struct devlink *devlink,
                                          u64 resource_id);
+int devlink_params_register(struct devlink *devlink,
+                            const struct devlink_param *params,
+                            size_t params_count);
+void devlink_params_unregister(struct devlink *devlink,
+                               const struct devlink_param *params,
+                               size_t params_count);
+int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
+                                       union devlink_param_value *init_val);
+int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
+                                       union devlink_param_value init_val);
+void devlink_param_value_changed(struct devlink *devlink, u32 param_id);
+struct devlink_region *devlink_region_create(struct devlink *devlink,
+                                             const char *region_name,
+                                             u32 region_max_snapshots,
+                                             u64 region_size);
+void devlink_region_destroy(struct devlink_region *region);
+u32 devlink_region_shapshot_id_get(struct devlink *devlink);
+int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len,
+                                   u8 *data, u32 snapshot_id,
+                                   devlink_snapshot_data_dest_t *data_destructor);
 
 #else
 
@@ -622,6 +754,69 @@ devlink_resource_occ_get_unregister(struct devlink *devlink,
 {
 }
 
+static inline int
+devlink_params_register(struct devlink *devlink,
+                        const struct devlink_param *params,
+                        size_t params_count)
+{
+        return 0;
+}
+
+static inline void
+devlink_params_unregister(struct devlink *devlink,
+                          const struct devlink_param *params,
+                          size_t params_count)
+{
+
+}
+
+static inline int
+devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
+                                   union devlink_param_value *init_val)
+{
+        return -EOPNOTSUPP;
+}
+
+static inline int
+devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
+                                   union devlink_param_value init_val)
+{
+        return -EOPNOTSUPP;
+}
+
+static inline void
+devlink_param_value_changed(struct devlink *devlink, u32 param_id)
+{
+}
+
+static inline struct devlink_region *
+devlink_region_create(struct devlink *devlink,
+                      const char *region_name,
+                      u32 region_max_snapshots,
+                      u64 region_size)
+{
+        return NULL;
+}
+
+static inline void
+devlink_region_destroy(struct devlink_region *region)
+{
+}
+
+static inline u32
+devlink_region_shapshot_id_get(struct devlink *devlink)
+{
+        return 0;
+}
+
+static inline int
+devlink_region_snapshot_create(struct devlink_region *region, u64 data_len,
+                               u8 *data, u32 snapshot_id,
+                               devlink_snapshot_data_dest_t *data_destructor)
+{
+        return 0;
+}
+
 #endif
 
 #endif /* _NET_DEVLINK_H_ */