| Michael Chan | a588e45 | 2016-12-07 00:26:21 -0500 | [diff] [blame] | 1 | /* Broadcom NetXtreme-C/E network driver. |
| 2 | * |
| 3 | * Copyright (c) 2016 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_OTHER_ULP 1 |
| 15 | #define BNXT_MAX_ULP 2 |
| 16 | |
| 17 | #define BNXT_MIN_ROCE_CP_RINGS 2 |
| 18 | #define BNXT_MIN_ROCE_STAT_CTXS 1 |
| 19 | |
| 20 | struct hwrm_async_event_cmpl; |
| 21 | struct bnxt; |
| 22 | |
| 23 | struct bnxt_ulp_ops { |
| 24 | /* async_notifier() cannot sleep (in BH context) */ |
| 25 | void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *); |
| 26 | void (*ulp_stop)(void *); |
| 27 | void (*ulp_start)(void *); |
| 28 | void (*ulp_sriov_config)(void *, int); |
| 29 | }; |
| 30 | |
| 31 | struct bnxt_msix_entry { |
| 32 | u32 vector; |
| 33 | u32 ring_idx; |
| 34 | u32 db_offset; |
| 35 | }; |
| 36 | |
| 37 | struct bnxt_fw_msg { |
| 38 | void *msg; |
| 39 | int msg_len; |
| 40 | void *resp; |
| 41 | int resp_max_len; |
| 42 | int timeout; |
| 43 | }; |
| 44 | |
| 45 | struct 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 | |
| 54 | struct bnxt_en_dev { |
| 55 | struct net_device *net; |
| 56 | struct pci_dev *pdev; |
| 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 | const struct bnxt_en_ops *en_ops; |
| 63 | struct bnxt_ulp ulp_tbl[BNXT_MAX_ULP]; |
| 64 | }; |
| 65 | |
| 66 | struct bnxt_en_ops { |
| 67 | int (*bnxt_register_device)(struct bnxt_en_dev *, int, |
| 68 | struct bnxt_ulp_ops *, void *); |
| 69 | int (*bnxt_unregister_device)(struct bnxt_en_dev *, int); |
| 70 | int (*bnxt_request_msix)(struct bnxt_en_dev *, int, |
| 71 | struct bnxt_msix_entry *, int); |
| 72 | int (*bnxt_free_msix)(struct bnxt_en_dev *, int); |
| 73 | int (*bnxt_send_fw_msg)(struct bnxt_en_dev *, int, |
| 74 | struct bnxt_fw_msg *); |
| 75 | int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *, int, |
| 76 | unsigned long *, u16); |
| 77 | }; |
| 78 | |
| 79 | static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id) |
| 80 | { |
| 81 | if (edev && rcu_access_pointer(edev->ulp_tbl[ulp_id].ulp_ops)) |
| 82 | return true; |
| 83 | return false; |
| 84 | } |
| 85 | |
| 86 | void bnxt_subtract_ulp_resources(struct bnxt *bp, int ulp_id); |
| 87 | void bnxt_ulp_stop(struct bnxt *bp); |
| 88 | void bnxt_ulp_start(struct bnxt *bp); |
| 89 | void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs); |
| 90 | void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl); |
| 91 | struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev); |
| 92 | |
| 93 | #endif |