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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
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
19#define BNXT_MAX_ROCE_MSIX_VF 2
20#define BNXT_MAX_ROCE_MSIX_NPAR_PF 5
21#define BNXT_MAX_ROCE_MSIX 64
22
23struct hwrm_async_event_cmpl;
24struct bnxt;
25
26struct bnxt_msix_entry {
27 u32 vector;
28 u32 ring_idx;
29 u32 db_offset;
30};
31
32struct bnxt_ulp_ops {
33 void (*ulp_irq_stop)(void *);
34 void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *);
35};
36
37struct bnxt_fw_msg {
38 void *msg;
39 int msg_len;
40 void *resp;
41 int resp_max_len;
42 int timeout;
43};
44
45struct bnxt_ulp {
46 void *handle;
47 struct bnxt_ulp_ops __rcu *ulp_ops;
48 unsigned long *async_events_bmap;
49 u16 max_async_event_id;
50 u16 msix_requested;
51 atomic_t ref_count;
52};
53
54struct bnxt_en_dev {
55 struct net_device *net;
56 struct pci_dev *pdev;
57 struct bnxt_msix_entry msix_entries[BNXT_MAX_ROCE_MSIX];
58 u32 flags;
59 #define BNXT_EN_FLAG_ROCEV1_CAP 0x1
60 #define BNXT_EN_FLAG_ROCEV2_CAP 0x2
61 #define BNXT_EN_FLAG_ROCE_CAP (BNXT_EN_FLAG_ROCEV1_CAP | \
62 BNXT_EN_FLAG_ROCEV2_CAP)
63 #define BNXT_EN_FLAG_MSIX_REQUESTED 0x4
64 #define BNXT_EN_FLAG_ULP_STOPPED 0x8
65 #define BNXT_EN_FLAG_VF 0x10
66#define BNXT_EN_VF(edev) ((edev)->flags & BNXT_EN_FLAG_VF)
67 #define BNXT_EN_FLAG_ROCE_VF_RES_MGMT 0x20
68
69 struct bnxt_ulp *ulp_tbl;
70 int l2_db_size; /* Doorbell BAR size in
71 * bytes mapped by L2
72 * driver.
73 */
74 int l2_db_size_nc; /* Doorbell BAR size in
75 * bytes mapped as non-
76 * cacheable.
77 */
78 int l2_db_offset; /* Doorbell offset in
79 * bytes within
80 * l2_db_size_nc.
81 */
82 u16 chip_num;
83 u16 hw_ring_stats_size;
84 u16 pf_port_id;
85 unsigned long en_state; /* Could be checked in
86 * RoCE driver suspend
87 * mode only. Will be
88 * updated in resume.
89 */
90 void __iomem *bar0;
91
92 u16 ulp_num_msix_vec;
93 u16 ulp_num_ctxs;
94
95 /* serialize ulp operations */
96 struct mutex en_dev_lock;
97};
98
99static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev)
100{
101 if (edev && rcu_access_pointer(edev->ulp_tbl->ulp_ops))
102 return true;
103 return false;
104}
105
106int bnxt_get_ulp_msix_num(struct bnxt *bp);
107int bnxt_get_ulp_msix_num_in_use(struct bnxt *bp);
108void bnxt_set_ulp_msix_num(struct bnxt *bp, int num);
109int bnxt_get_ulp_stat_ctxs(struct bnxt *bp);
110void bnxt_set_ulp_stat_ctxs(struct bnxt *bp, int num_ctxs);
111int bnxt_get_ulp_stat_ctxs_in_use(struct bnxt *bp);
112void bnxt_set_dflt_ulp_stat_ctxs(struct bnxt *bp);
113void bnxt_ulp_stop(struct bnxt *bp);
114void bnxt_ulp_start(struct bnxt *bp, int err);
115void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs);
116void bnxt_ulp_irq_stop(struct bnxt *bp);
117void bnxt_ulp_irq_restart(struct bnxt *bp, int err);
118void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl);
119void bnxt_rdma_aux_device_uninit(struct bnxt *bp);
120void bnxt_rdma_aux_device_del(struct bnxt *bp);
121void bnxt_rdma_aux_device_add(struct bnxt *bp);
122void bnxt_rdma_aux_device_init(struct bnxt *bp);
123int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops,
124 void *handle);
125void bnxt_unregister_dev(struct bnxt_en_dev *edev);
126int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg);
127int bnxt_register_async_events(struct bnxt_en_dev *edev,
128 unsigned long *events_bmap, u16 max_id);
129#endif