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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2025 Broadcom */
#ifndef _BNGE_DB_H_
#define _BNGE_DB_H_
/* 64-bit doorbell */
#define DBR_EPOCH_SFT 24
#define DBR_TOGGLE_SFT 25
#define DBR_XID_SFT 32
#define DBR_PATH_L2 (0x1ULL << 56)
#define DBR_VALID (0x1ULL << 58)
#define DBR_TYPE_SQ (0x0ULL << 60)
#define DBR_TYPE_SRQ (0x2ULL << 60)
#define DBR_TYPE_CQ (0x4ULL << 60)
#define DBR_TYPE_CQ_ARMALL (0x6ULL << 60)
#define DBR_TYPE_NQ (0xaULL << 60)
#define DBR_TYPE_NQ_ARM (0xbULL << 60)
#define DBR_TYPE_NQ_MASK (0xeULL << 60)
struct bnge_db_info {
void __iomem *doorbell;
u64 db_key64;
u32 db_ring_mask;
u32 db_epoch_mask;
u8 db_epoch_shift;
};
#define DB_EPOCH(db, idx) (((idx) & (db)->db_epoch_mask) << \
((db)->db_epoch_shift))
#define DB_RING_IDX(db, idx) (((idx) & (db)->db_ring_mask) | \
DB_EPOCH(db, idx))
#endif /* _BNGE_DB_H_ */
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