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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/rdma/rdma_counter.h
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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */

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/*

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 * Copyright (c) 2019 Mellanox Technologies. All rights reserved.

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 */

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#ifndef _RDMA_COUNTER_H_

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#define _RDMA_COUNTER_H_

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#include <linux/mutex.h>

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#include <linux/pid_namespace.h>

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#include <rdma/restrack.h>

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#include <rdma/rdma_netlink.h>

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struct ib_device;

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struct ib_qp;

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struct auto_mode_param {

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	int qp_type;

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};

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struct rdma_counter_mode {

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	enum rdma_nl_counter_mode mode;

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	enum rdma_nl_counter_mask mask;

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	struct auto_mode_param param;

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	bool bind_opcnt;

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};

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struct rdma_port_counter {

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	struct rdma_counter_mode mode;

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	struct rdma_hw_stats *hstats;

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	unsigned int num_counters;

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	struct mutex lock;

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};

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struct rdma_counter {

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	struct rdma_restrack_entry	res;

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	struct ib_device		*device;

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	uint32_t			id;

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	struct kref			kref;

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	struct rdma_counter_mode	mode;

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	struct mutex			lock;

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	struct rdma_hw_stats		*stats;

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	u32				port;

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};

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void rdma_counter_init(struct ib_device *dev);

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void rdma_counter_release(struct ib_device *dev);

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int rdma_counter_set_auto_mode(struct ib_device *dev, u32 port,

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			       enum rdma_nl_counter_mask mask,

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			       bool bind_opcnt,

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			       struct netlink_ext_ack *extack);

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int rdma_counter_bind_qp_auto(struct ib_qp *qp, u32 port);

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int rdma_counter_unbind_qp(struct ib_qp *qp, u32 port, bool force);

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int rdma_counter_query_stats(struct rdma_counter *counter);

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u64 rdma_counter_get_hwstat_value(struct ib_device *dev, u32 port, u32 index);

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int rdma_counter_bind_qpn(struct ib_device *dev, u32 port,

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			  u32 qp_num, u32 counter_id);

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int rdma_counter_bind_qpn_alloc(struct ib_device *dev, u32 port,

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				u32 qp_num, u32 *counter_id);

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int rdma_counter_unbind_qpn(struct ib_device *dev, u32 port,

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			    u32 qp_num, u32 counter_id);

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int rdma_counter_get_mode(struct ib_device *dev, u32 port,

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			  enum rdma_nl_counter_mode *mode,

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			  enum rdma_nl_counter_mask *mask,

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			  bool *opcnt);

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int rdma_counter_modify(struct ib_device *dev, u32 port,

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			unsigned int index, bool enable);

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#endif /* _RDMA_COUNTER_H_ */

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