1/* Broadcom NetXtreme-C/E network driver.
2 *
3 * Copyright (c) 2016-2018 Broadcom Limited
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
8 */
9
10#ifndef BNXT_ULP_H
11#define BNXT_ULP_H
12
13#define BNXT_ROCE_ULP	0
14#define BNXT_MAX_ULP	1
15
16#define BNXT_MIN_ROCE_CP_RINGS	2
17#define BNXT_MIN_ROCE_STAT_CTXS	1
18#define BNXT_MAX_ROCE_MSIX	9
19#define BNXT_MAX_VF_ROCE_MSIX	2
20
21struct hwrm_async_event_cmpl;
22struct bnxt;
23
24struct bnxt_msix_entry {
25	u32	vector;
26	u32	ring_idx;
27	u32	db_offset;
28};
29
30struct bnxt_ulp_ops {
31	void (*ulp_irq_stop)(void *);
32	void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *);
33};
34
35struct bnxt_fw_msg {
36	void	*msg;
37	int	msg_len;
38	void	*resp;
39	int	resp_max_len;
40	int	timeout;
41};
42
43struct bnxt_ulp {
44	void		*handle;
45	struct bnxt_ulp_ops __rcu *ulp_ops;
46	unsigned long	*async_events_bmap;
47	u16		max_async_event_id;
48	u16		msix_requested;
49	u16		msix_base;
50	atomic_t	ref_count;
51};
52
53struct bnxt_en_dev {
54	struct net_device *net;
55	struct pci_dev *pdev;
56	struct bnxt_msix_entry			msix_entries[BNXT_MAX_ROCE_MSIX];
57	u32 flags;
58	#define BNXT_EN_FLAG_ROCEV1_CAP		0x1
59	#define BNXT_EN_FLAG_ROCEV2_CAP		0x2
60	#define BNXT_EN_FLAG_ROCE_CAP		(BNXT_EN_FLAG_ROCEV1_CAP | \
61						 BNXT_EN_FLAG_ROCEV2_CAP)
62	#define BNXT_EN_FLAG_MSIX_REQUESTED	0x4
63	#define BNXT_EN_FLAG_ULP_STOPPED	0x8
64	#define BNXT_EN_FLAG_VF			0x10
65#define BNXT_EN_VF(edev)	((edev)->flags & BNXT_EN_FLAG_VF)
66
67	struct bnxt_ulp			*ulp_tbl;
68	int				l2_db_size;	/* Doorbell BAR size in
69							 * bytes mapped by L2
70							 * driver.
71							 */
72	int				l2_db_size_nc;	/* Doorbell BAR size in
73							 * bytes mapped as non-
74							 * cacheable.
75							 */
76	int				l2_db_offset;	/* Doorbell offset in
77							 * bytes within
78							 * l2_db_size_nc.
79							 */
80	u16				chip_num;
81	u16				hw_ring_stats_size;
82	u16				pf_port_id;
83	unsigned long			en_state;	/* Could be checked in
84							 * RoCE driver suspend
85							 * mode only. Will be
86							 * updated in resume.
87							 */
88	void __iomem                    *bar0;
89};
90
91static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev)
92{
93	if (edev && edev->ulp_tbl)
94		return true;
95	return false;
96}
97
98int bnxt_get_ulp_msix_num(struct bnxt *bp);
99int bnxt_get_ulp_msix_base(struct bnxt *bp);
100int bnxt_get_ulp_stat_ctxs(struct bnxt *bp);
101void bnxt_ulp_stop(struct bnxt *bp);
102void bnxt_ulp_start(struct bnxt *bp, int err);
103void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs);
104void bnxt_ulp_irq_stop(struct bnxt *bp);
105void bnxt_ulp_irq_restart(struct bnxt *bp, int err);
106void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl);
107void bnxt_rdma_aux_device_uninit(struct bnxt *bp);
108void bnxt_rdma_aux_device_init(struct bnxt *bp);
109int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops,
110		      void *handle);
111void bnxt_unregister_dev(struct bnxt_en_dev *edev);
112int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg);
113int bnxt_register_async_events(struct bnxt_en_dev *edev,
114			       unsigned long *events_bmap, u16 max_id);
115#endif
116