bng_re.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2// Copyright (c) 2025 Broadcom.
 3
 4#ifndef __BNG_RE_H__
 5#define __BNG_RE_H__
 6
 7#include "bng_res.h"
 8
 9#define BNG_RE_ADEV_NAME		"bng_en"
10
11#define BNG_RE_DESC	"Broadcom 800G RoCE Driver"
12
13#define	rdev_to_dev(rdev)	((rdev) ? (&(rdev)->ibdev.dev) : NULL)
14
15#define BNG_RE_MIN_MSIX		2
16#define BNG_RE_MAX_MSIX		BNGE_MAX_ROCE_MSIX
17
18#define BNG_RE_CREQ_NQ_IDX	0
19
20#define BNGE_INVALID_STATS_CTX_ID	-1
21/* NQ specific structures  */
22struct bng_re_nq_db {
23	struct bng_re_reg_desc	reg;
24	struct bng_re_db_info	dbinfo;
25};
26
27struct bng_re_nq {
28	struct pci_dev			*pdev;
29	struct bng_re_res		*res;
30	char				*name;
31	struct bng_re_hwq		hwq;
32	struct bng_re_nq_db		nq_db;
33	u16				ring_id;
34	int				msix_vec;
35	cpumask_t			mask;
36	struct tasklet_struct		nq_tasklet;
37	bool				requested;
38	int				budget;
39	u32				load;
40
41	struct workqueue_struct		*cqn_wq;
42};
43
44struct bng_re_nq_record {
45	struct bnge_msix_info	msix_entries[BNG_RE_MAX_MSIX];
46	struct bng_re_nq	nq[BNG_RE_MAX_MSIX];
47	int			num_msix;
48	/* serialize NQ access */
49	struct mutex		load_lock;
50};
51
52struct bng_re_en_dev_info {
53	struct bng_re_dev *rdev;
54	struct bnge_auxr_dev *auxr_dev;
55};
56
57struct bng_re_ring_attr {
58	dma_addr_t	*dma_arr;
59	int		pages;
60	int		type;
61	u32		depth;
62	u32		lrid; /* Logical ring id */
63	u8		mode;
64};
65
66struct bng_re_dev {
67	struct ib_device		ibdev;
68	unsigned long			flags;
69#define BNG_RE_FLAG_NETDEV_REGISTERED		0
70#define BNG_RE_FLAG_RCFW_CHANNEL_EN		1
71	struct net_device		*netdev;
72	struct auxiliary_device         *adev;
73	struct bnge_auxr_dev		*aux_dev;
74	struct bng_re_chip_ctx		*chip_ctx;
75	int				fn_id;
76	struct bng_re_res		bng_res;
77	struct bng_re_rcfw		rcfw;
78	struct bng_re_nq_record		*nqr;
79	/* Device Resources */
80	struct bng_re_dev_attr		*dev_attr;
81	struct dentry			*dbg_root;
82	struct bng_re_stats		stats_ctx;
83};
84
85#endif