xref: /kernel/linux/linux-5.10/include/linux/qed/qede_rdma.h

/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
/* QLogic qedr NIC Driver
 * Copyright (c) 2015-2017  QLogic Corporation
 * Copyright (c) 2019-2020 Marvell International Ltd.
 */

#ifndef QEDE_ROCE_H
#define QEDE_ROCE_H

#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/workqueue.h>

struct qedr_dev;
struct qed_dev;
struct qede_dev;

enum qede_rdma_event {
	QEDE_UP,
	QEDE_DOWN,
	QEDE_CHANGE_ADDR,
	QEDE_CLOSE,
	QEDE_CHANGE_MTU,
};

struct qede_rdma_event_work {
	struct list_head list;
	struct work_struct work;
	void *ptr;
	enum qede_rdma_event event;
};

struct qedr_driver {
	unsigned char name[32];

	struct qedr_dev* (*add)(struct qed_dev *, struct pci_dev *,
				struct net_device *);

	void (*remove)(struct qedr_dev *);
	void (*notify)(struct qedr_dev *, enum qede_rdma_event);
};

/* APIs for RDMA driver to register callback handlers,
 * which will be invoked when device is added, removed, ifup, ifdown
 */
int qede_rdma_register_driver(struct qedr_driver *drv);
void qede_rdma_unregister_driver(struct qedr_driver *drv);

bool qede_rdma_supported(struct qede_dev *dev);

#if IS_ENABLED(CONFIG_QED_RDMA)
int qede_rdma_dev_add(struct qede_dev *dev, bool recovery);
void qede_rdma_dev_event_open(struct qede_dev *dev);
void qede_rdma_dev_event_close(struct qede_dev *dev);
void qede_rdma_dev_remove(struct qede_dev *dev, bool recovery);
void qede_rdma_event_changeaddr(struct qede_dev *edr);
void qede_rdma_event_change_mtu(struct qede_dev *edev);

#else
static inline int qede_rdma_dev_add(struct qede_dev *dev,
				    bool recovery)
{
	return 0;
}

static inline void qede_rdma_dev_event_open(struct qede_dev *dev) {}
static inline void qede_rdma_dev_event_close(struct qede_dev *dev) {}
static inline void qede_rdma_dev_remove(struct qede_dev *dev,
					bool recovery) {}
static inline void qede_rdma_event_changeaddr(struct qede_dev *edr) {}
#endif
#endif