linux/drivers/scsi/snic/cq_desc.h

/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright 2014 Cisco Systems, Inc.  All rights reserved. */

#ifndef _CQ_DESC_H_
#define _CQ_DESC_H_

/*
 * Completion queue descriptor types
 */
enum cq_desc_types { … };

/* Completion queue descriptor: 16B
 *
 * All completion queues have this basic layout.  The
 * type_specific area is unique for each completion
 * queue type.
 */
struct cq_desc { … };

#define CQ_DESC_TYPE_BITS …
#define CQ_DESC_TYPE_MASK …
#define CQ_DESC_COLOR_MASK …
#define CQ_DESC_COLOR_SHIFT …
#define CQ_DESC_Q_NUM_BITS …
#define CQ_DESC_Q_NUM_MASK …
#define CQ_DESC_COMP_NDX_BITS …
#define CQ_DESC_COMP_NDX_MASK …

static inline void cq_desc_dec(const struct cq_desc *desc_arg,
	u8 *type, u8 *color, u16 *q_number, u16 *completed_index)
{ … }

#endif /* _CQ_DESC_H_ */