linux/drivers/net/ethernet/qlogic/qed/qed_ooo.h

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

#ifndef _QED_OOO_H
#define _QED_OOO_H
#include <linux/types.h>
#include <linux/list.h>
#include <linux/slab.h>
#include "qed.h"

#define QED_MAX_NUM_ISLES …
#define QED_MAX_NUM_OOO_HISTORY_ENTRIES …

#define QED_OOO_LEFT_BUF …
#define QED_OOO_RIGHT_BUF …

struct qed_ooo_buffer { … };

struct qed_ooo_isle { … };

struct qed_ooo_archipelago { … };

struct qed_ooo_history { … };

struct qed_ooo_info { … };

#if IS_ENABLED(CONFIG_QED_OOO)
void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
				struct qed_ooo_info *p_ooo_info,
				struct ooo_opaque *p_cqe);

int qed_ooo_alloc(struct qed_hwfn *p_hwfn);

void qed_ooo_setup(struct qed_hwfn *p_hwfn);

void qed_ooo_free(struct qed_hwfn *p_hwfn);

void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
				      struct qed_ooo_info *p_ooo_info,
				      u32 cid);

void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
			       struct qed_ooo_info *p_ooo_info);

void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
			     struct qed_ooo_info *p_ooo_info,
			     struct qed_ooo_buffer *p_buffer);

struct qed_ooo_buffer *
qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
			struct qed_ooo_info *p_ooo_info);

void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
			      struct qed_ooo_info *p_ooo_info,
			      struct qed_ooo_buffer *p_buffer, u8 on_tail);

struct qed_ooo_buffer *
qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
			 struct qed_ooo_info *p_ooo_info);

void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
			  struct qed_ooo_info *p_ooo_info,
			  u32 cid, u8 drop_isle, u8 drop_size);

void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
			  struct qed_ooo_info *p_ooo_info,
			  u32 cid,
			  u8 ooo_isle, struct qed_ooo_buffer *p_buffer);

void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
			    struct qed_ooo_info *p_ooo_info,
			    u32 cid,
			    u8 ooo_isle,
			    struct qed_ooo_buffer *p_buffer, u8 buffer_side);

void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
			struct qed_ooo_info *p_ooo_info, u32 cid,
			u8 left_isle);
#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
					      struct qed_ooo_info *p_ooo_info,
					      struct ooo_opaque *p_cqe) {}

static inline int qed_ooo_alloc(struct qed_hwfn *p_hwfn)
{
	return -EINVAL;
}

static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn) {}

static inline void qed_ooo_free(struct qed_hwfn *p_hwfn) {}

static inline void
qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
				 struct qed_ooo_info *p_ooo_info,
				 u32 cid) {}

static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
					     struct qed_ooo_info *p_ooo_info)
					     {}

static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
					   struct qed_ooo_info *p_ooo_info,
					   struct qed_ooo_buffer *p_buffer) {}

static inline struct qed_ooo_buffer *
qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
			struct qed_ooo_info *p_ooo_info) { return NULL; }

static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
					    struct qed_ooo_info *p_ooo_info,
					    struct qed_ooo_buffer *p_buffer,
					    u8 on_tail) {}

static inline struct qed_ooo_buffer *
qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
			 struct qed_ooo_info *p_ooo_info) { return NULL; }

static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
					struct qed_ooo_info *p_ooo_info,
					u32 cid, u8 drop_isle, u8 drop_size) {}

static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
					struct qed_ooo_info *p_ooo_info,
					u32 cid, u8 ooo_isle,
					struct qed_ooo_buffer *p_buffer) {}

static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
					  struct qed_ooo_info *p_ooo_info,
					  u32 cid, u8 ooo_isle,
					  struct qed_ooo_buffer *p_buffer,
					  u8 buffer_side) {}

static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
				      struct qed_ooo_info *p_ooo_info, u32 cid,
				      u8 left_isle) {}
#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */

#endif