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 u16 chip_num; 77 u16 hw_ring_stats_size; 78 u16 pf_port_id; 79 unsigned long en_state; /* Could be checked in 80 * RoCE driver suspend 81 * mode only. Will be 82 * updated in resume. 83 */ 84 void __iomem *bar0; 85 }; 86 87 static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev) 88 { 89 if (edev && edev->ulp_tbl) 90 return true; 91 return false; 92 } 93 94 int bnxt_get_ulp_msix_num(struct bnxt *bp); 95 int bnxt_get_ulp_msix_base(struct bnxt *bp); 96 int bnxt_get_ulp_stat_ctxs(struct bnxt *bp); 97 void bnxt_ulp_stop(struct bnxt *bp); 98 void bnxt_ulp_start(struct bnxt *bp, int err); 99 void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs); 100 void bnxt_ulp_irq_stop(struct bnxt *bp); 101 void bnxt_ulp_irq_restart(struct bnxt *bp, int err); 102 void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl); 103 void bnxt_rdma_aux_device_uninit(struct bnxt *bp); 104 void bnxt_rdma_aux_device_init(struct bnxt *bp); 105 int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops, 106 void *handle); 107 void bnxt_unregister_dev(struct bnxt_en_dev *edev); 108 int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg); 109 int bnxt_register_async_events(struct bnxt_en_dev *edev, 110 unsigned long *events_bmap, u16 max_id); 111 #endif 112