1*4882a593Smuzhiyun /* Broadcom NetXtreme-C/E network driver.
2*4882a593Smuzhiyun *
3*4882a593Smuzhiyun * Copyright (c) 2016-2018 Broadcom Limited
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or modify
6*4882a593Smuzhiyun * it under the terms of the GNU General Public License as published by
7*4882a593Smuzhiyun * the Free Software Foundation.
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #ifndef BNXT_ULP_H
11*4882a593Smuzhiyun #define BNXT_ULP_H
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #define BNXT_ROCE_ULP 0
14*4882a593Smuzhiyun #define BNXT_OTHER_ULP 1
15*4882a593Smuzhiyun #define BNXT_MAX_ULP 2
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #define BNXT_MIN_ROCE_CP_RINGS 2
18*4882a593Smuzhiyun #define BNXT_MIN_ROCE_STAT_CTXS 1
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun struct hwrm_async_event_cmpl;
21*4882a593Smuzhiyun struct bnxt;
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun struct bnxt_msix_entry {
24*4882a593Smuzhiyun u32 vector;
25*4882a593Smuzhiyun u32 ring_idx;
26*4882a593Smuzhiyun u32 db_offset;
27*4882a593Smuzhiyun };
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun struct bnxt_ulp_ops {
30*4882a593Smuzhiyun /* async_notifier() cannot sleep (in BH context) */
31*4882a593Smuzhiyun void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *);
32*4882a593Smuzhiyun void (*ulp_stop)(void *);
33*4882a593Smuzhiyun void (*ulp_start)(void *);
34*4882a593Smuzhiyun void (*ulp_sriov_config)(void *, int);
35*4882a593Smuzhiyun void (*ulp_shutdown)(void *);
36*4882a593Smuzhiyun void (*ulp_irq_stop)(void *);
37*4882a593Smuzhiyun void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *);
38*4882a593Smuzhiyun };
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun struct bnxt_fw_msg {
41*4882a593Smuzhiyun void *msg;
42*4882a593Smuzhiyun int msg_len;
43*4882a593Smuzhiyun void *resp;
44*4882a593Smuzhiyun int resp_max_len;
45*4882a593Smuzhiyun int timeout;
46*4882a593Smuzhiyun };
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun struct bnxt_ulp {
49*4882a593Smuzhiyun void *handle;
50*4882a593Smuzhiyun struct bnxt_ulp_ops __rcu *ulp_ops;
51*4882a593Smuzhiyun unsigned long *async_events_bmap;
52*4882a593Smuzhiyun u16 max_async_event_id;
53*4882a593Smuzhiyun u16 msix_requested;
54*4882a593Smuzhiyun u16 msix_base;
55*4882a593Smuzhiyun atomic_t ref_count;
56*4882a593Smuzhiyun };
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun struct bnxt_en_dev {
59*4882a593Smuzhiyun struct net_device *net;
60*4882a593Smuzhiyun struct pci_dev *pdev;
61*4882a593Smuzhiyun u32 flags;
62*4882a593Smuzhiyun #define BNXT_EN_FLAG_ROCEV1_CAP 0x1
63*4882a593Smuzhiyun #define BNXT_EN_FLAG_ROCEV2_CAP 0x2
64*4882a593Smuzhiyun #define BNXT_EN_FLAG_ROCE_CAP (BNXT_EN_FLAG_ROCEV1_CAP | \
65*4882a593Smuzhiyun BNXT_EN_FLAG_ROCEV2_CAP)
66*4882a593Smuzhiyun #define BNXT_EN_FLAG_MSIX_REQUESTED 0x4
67*4882a593Smuzhiyun #define BNXT_EN_FLAG_ULP_STOPPED 0x8
68*4882a593Smuzhiyun const struct bnxt_en_ops *en_ops;
69*4882a593Smuzhiyun struct bnxt_ulp ulp_tbl[BNXT_MAX_ULP];
70*4882a593Smuzhiyun int l2_db_size; /* Doorbell BAR size in
71*4882a593Smuzhiyun * bytes mapped by L2
72*4882a593Smuzhiyun * driver.
73*4882a593Smuzhiyun */
74*4882a593Smuzhiyun int l2_db_size_nc; /* Doorbell BAR size in
75*4882a593Smuzhiyun * bytes mapped as non-
76*4882a593Smuzhiyun * cacheable.
77*4882a593Smuzhiyun */
78*4882a593Smuzhiyun };
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun struct bnxt_en_ops {
81*4882a593Smuzhiyun int (*bnxt_register_device)(struct bnxt_en_dev *, int,
82*4882a593Smuzhiyun struct bnxt_ulp_ops *, void *);
83*4882a593Smuzhiyun int (*bnxt_unregister_device)(struct bnxt_en_dev *, int);
84*4882a593Smuzhiyun int (*bnxt_request_msix)(struct bnxt_en_dev *, int,
85*4882a593Smuzhiyun struct bnxt_msix_entry *, int);
86*4882a593Smuzhiyun int (*bnxt_free_msix)(struct bnxt_en_dev *, int);
87*4882a593Smuzhiyun int (*bnxt_send_fw_msg)(struct bnxt_en_dev *, int,
88*4882a593Smuzhiyun struct bnxt_fw_msg *);
89*4882a593Smuzhiyun int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *, int,
90*4882a593Smuzhiyun unsigned long *, u16);
91*4882a593Smuzhiyun };
92*4882a593Smuzhiyun
bnxt_ulp_registered(struct bnxt_en_dev * edev,int ulp_id)93*4882a593Smuzhiyun static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id)
94*4882a593Smuzhiyun {
95*4882a593Smuzhiyun if (edev && rcu_access_pointer(edev->ulp_tbl[ulp_id].ulp_ops))
96*4882a593Smuzhiyun return true;
97*4882a593Smuzhiyun return false;
98*4882a593Smuzhiyun }
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun int bnxt_get_ulp_msix_num(struct bnxt *bp);
101*4882a593Smuzhiyun int bnxt_get_ulp_msix_base(struct bnxt *bp);
102*4882a593Smuzhiyun int bnxt_get_ulp_stat_ctxs(struct bnxt *bp);
103*4882a593Smuzhiyun void bnxt_ulp_stop(struct bnxt *bp);
104*4882a593Smuzhiyun void bnxt_ulp_start(struct bnxt *bp, int err);
105*4882a593Smuzhiyun void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs);
106*4882a593Smuzhiyun void bnxt_ulp_shutdown(struct bnxt *bp);
107*4882a593Smuzhiyun void bnxt_ulp_irq_stop(struct bnxt *bp);
108*4882a593Smuzhiyun void bnxt_ulp_irq_restart(struct bnxt *bp, int err);
109*4882a593Smuzhiyun void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl);
110*4882a593Smuzhiyun struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev);
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun #endif
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