linux/drivers/infiniband/hw/efa/efa_com.h

/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
/*
 * Copyright 2018-2021 Amazon.com, Inc. or its affiliates. All rights reserved.
 */

#ifndef _EFA_COM_H_
#define _EFA_COM_H_

#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/semaphore.h>
#include <linux/sched.h>

#include <rdma/ib_verbs.h>

#include "efa_common_defs.h"
#include "efa_admin_defs.h"
#include "efa_admin_cmds_defs.h"
#include "efa_regs_defs.h"

#define EFA_MAX_HANDLERS …

struct efa_com_admin_cq { … };

struct efa_com_admin_sq { … };

/* Don't use anything other than atomic64 */
struct efa_com_stats_admin { … };

enum { … };

struct efa_com_admin_queue { … };

struct efa_aenq_handlers;
struct efa_com_eq;
efa_eqe_handler;

struct efa_com_aenq { … };

struct efa_com_mmio_read { … };

struct efa_com_dev { … };

struct efa_com_eq { … };

struct efa_com_create_eq_params { … };

struct efa_com_create_eq_result { … };

struct efa_com_destroy_eq_params { … };

efa_aenq_handler;

/* Holds aenq handlers. Indexed by AENQ event group */
struct efa_aenq_handlers { … };

void efa_com_set_dma_addr(dma_addr_t addr, u32 *addr_high, u32 *addr_low);
int efa_com_admin_init(struct efa_com_dev *edev,
		       struct efa_aenq_handlers *aenq_handlers);
void efa_com_admin_destroy(struct efa_com_dev *edev);
int efa_com_eq_init(struct efa_com_dev *edev, struct efa_com_eq *eeq,
		    efa_eqe_handler cb, u16 depth, u8 msix_vec);
void efa_com_eq_destroy(struct efa_com_dev *edev, struct efa_com_eq *eeq);
int efa_com_dev_reset(struct efa_com_dev *edev,
		      enum efa_regs_reset_reason_types reset_reason);
void efa_com_set_admin_polling_mode(struct efa_com_dev *edev, bool polling);
void efa_com_admin_q_comp_intr_handler(struct efa_com_dev *edev);
int efa_com_mmio_reg_read_init(struct efa_com_dev *edev);
void efa_com_mmio_reg_read_destroy(struct efa_com_dev *edev);

int efa_com_validate_version(struct efa_com_dev *edev);
int efa_com_get_dma_width(struct efa_com_dev *edev);

int efa_com_cmd_exec(struct efa_com_admin_queue *aq,
		     struct efa_admin_aq_entry *cmd,
		     size_t cmd_size,
		     struct efa_admin_acq_entry *comp,
		     size_t comp_size);
void efa_com_aenq_intr_handler(struct efa_com_dev *edev, void *data);
void efa_com_eq_comp_intr_handler(struct efa_com_dev *edev,
				  struct efa_com_eq *eeq);

#endif /* _EFA_COM_H_ */