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 | |
21 | struct hwrm_async_event_cmpl; |
22 | struct bnxt; |
23 | |
24 | struct bnxt_msix_entry { |
25 | u32 vector; |
26 | u32 ring_idx; |
27 | u32 db_offset; |
28 | }; |
29 | |
30 | struct bnxt_ulp_ops { |
31 | void (*ulp_irq_stop)(void *); |
32 | void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *); |
33 | }; |
34 | |
35 | struct bnxt_fw_msg { |
36 | void *msg; |
37 | int msg_len; |
38 | void *resp; |
39 | int resp_max_len; |
40 | int timeout; |
41 | }; |
42 | |
43 | struct 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 | |
53 | struct 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 | |
91 | static 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 | |
98 | int bnxt_get_ulp_msix_num(struct bnxt *bp); |
99 | int bnxt_get_ulp_msix_base(struct bnxt *bp); |
100 | int bnxt_get_ulp_stat_ctxs(struct bnxt *bp); |
101 | void bnxt_ulp_stop(struct bnxt *bp); |
102 | void bnxt_ulp_start(struct bnxt *bp, int err); |
103 | void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs); |
104 | void bnxt_ulp_irq_stop(struct bnxt *bp); |
105 | void bnxt_ulp_irq_restart(struct bnxt *bp, int err); |
106 | void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl); |
107 | void bnxt_rdma_aux_device_uninit(struct bnxt *bp); |
108 | void bnxt_rdma_aux_device_init(struct bnxt *bp); |
109 | int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops, |
110 | void *handle); |
111 | void bnxt_unregister_dev(struct bnxt_en_dev *edev); |
112 | int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg); |
113 | int bnxt_register_async_events(struct bnxt_en_dev *edev, |
114 | unsigned long *events_bmap, u16 max_id); |
115 | #endif |
116 | |