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 94