ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/include/rdma/restrack.h b/marvell/linux/include/rdma/restrack.h
new file mode 100644
index 0000000..83df1ec
--- /dev/null
+++ b/marvell/linux/include/rdma/restrack.h
@@ -0,0 +1,162 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef _RDMA_RESTRACK_H_
+#define _RDMA_RESTRACK_H_
+
+#include <linux/typecheck.h>
+#include <linux/sched.h>
+#include <linux/kref.h>
+#include <linux/completion.h>
+#include <linux/sched/task.h>
+#include <uapi/rdma/rdma_netlink.h>
+#include <linux/xarray.h>
+
+struct ib_device;
+struct sk_buff;
+
+/**
+ * enum rdma_restrack_type - HW objects to track
+ */
+enum rdma_restrack_type {
+ /**
+ * @RDMA_RESTRACK_PD: Protection domain (PD)
+ */
+ RDMA_RESTRACK_PD,
+ /**
+ * @RDMA_RESTRACK_CQ: Completion queue (CQ)
+ */
+ RDMA_RESTRACK_CQ,
+ /**
+ * @RDMA_RESTRACK_QP: Queue pair (QP)
+ */
+ RDMA_RESTRACK_QP,
+ /**
+ * @RDMA_RESTRACK_CM_ID: Connection Manager ID (CM_ID)
+ */
+ RDMA_RESTRACK_CM_ID,
+ /**
+ * @RDMA_RESTRACK_MR: Memory Region (MR)
+ */
+ RDMA_RESTRACK_MR,
+ /**
+ * @RDMA_RESTRACK_CTX: Verbs contexts (CTX)
+ */
+ RDMA_RESTRACK_CTX,
+ /**
+ * @RDMA_RESTRACK_COUNTER: Statistic Counter
+ */
+ RDMA_RESTRACK_COUNTER,
+ /**
+ * @RDMA_RESTRACK_MAX: Last entry, used for array dclarations
+ */
+ RDMA_RESTRACK_MAX
+};
+
+/**
+ * struct rdma_restrack_entry - metadata per-entry
+ */
+struct rdma_restrack_entry {
+ /**
+ * @valid: validity indicator
+ *
+ * The entries are filled during rdma_restrack_add,
+ * can be attempted to be free during rdma_restrack_del.
+ *
+ * As an example for that, see mlx5 QPs with type MLX5_IB_QPT_HW_GSI
+ */
+ bool valid;
+ /*
+ * @kref: Protect destroy of the resource
+ */
+ struct kref kref;
+ /*
+ * @comp: Signal that all consumers of resource are completed their work
+ */
+ struct completion comp;
+ /**
+ * @task: owner of resource tracking entity
+ *
+ * There are two types of entities: created by user and created
+ * by kernel.
+ *
+ * This is relevant for the entities created by users.
+ * For the entities created by kernel, this pointer will be NULL.
+ */
+ struct task_struct *task;
+ /**
+ * @kern_name: name of owner for the kernel created entities.
+ */
+ const char *kern_name;
+ /**
+ * @type: various objects in restrack database
+ */
+ enum rdma_restrack_type type;
+ /**
+ * @user: user resource
+ */
+ bool user;
+ /**
+ * @id: ID to expose to users
+ */
+ u32 id;
+};
+
+int rdma_restrack_count(struct ib_device *dev,
+ enum rdma_restrack_type type);
+
+void rdma_restrack_kadd(struct rdma_restrack_entry *res);
+void rdma_restrack_uadd(struct rdma_restrack_entry *res);
+
+/**
+ * rdma_restrack_del() - delete object from the reource tracking database
+ * @res: resource entry
+ * @type: actual type of object to operate
+ */
+void rdma_restrack_del(struct rdma_restrack_entry *res);
+
+/**
+ * rdma_is_kernel_res() - check the owner of resource
+ * @res: resource entry
+ */
+static inline bool rdma_is_kernel_res(struct rdma_restrack_entry *res)
+{
+ return !res->user;
+}
+
+/**
+ * rdma_restrack_get() - grab to protect resource from release
+ * @res: resource entry
+ */
+int __must_check rdma_restrack_get(struct rdma_restrack_entry *res);
+
+/**
+ * rdma_restrack_put() - release resource
+ * @res: resource entry
+ */
+int rdma_restrack_put(struct rdma_restrack_entry *res);
+
+/**
+ * rdma_restrack_set_task() - set the task for this resource
+ * @res: resource entry
+ * @caller: kernel name, the current task will be used if the caller is NULL.
+ */
+void rdma_restrack_set_task(struct rdma_restrack_entry *res,
+ const char *caller);
+
+/*
+ * Helper functions for rdma drivers when filling out
+ * nldev driver attributes.
+ */
+int rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name, u32 value);
+int rdma_nl_put_driver_u32_hex(struct sk_buff *msg, const char *name,
+ u32 value);
+int rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name, u64 value);
+int rdma_nl_put_driver_u64_hex(struct sk_buff *msg, const char *name,
+ u64 value);
+struct rdma_restrack_entry *rdma_restrack_get_byid(struct ib_device *dev,
+ enum rdma_restrack_type type,
+ u32 id);
+#endif /* _RDMA_RESTRACK_H_ */