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 23 struct hwrm_async_event_cmpl; 24 struct bnxt; 25 26 struct bnxt_msix_entry { 27 u32 vector; 28 u32 ring_idx; 29 u32 db_offset; 30 }; 31 32 struct bnxt_ulp_ops { 33 void (*ulp_irq_stop)(void *); 34 void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *); 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 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 68 struct bnxt_ulp *ulp_tbl; 69 int l2_db_size; /* Doorbell BAR size in 70 * bytes mapped by L2 71 * driver. 72 */ 73 int l2_db_size_nc; /* Doorbell BAR size in 74 * bytes mapped as non- 75 * cacheable. 76 */ 77 int l2_db_offset; /* Doorbell offset in 78 * bytes within 79 * l2_db_size_nc. 80 */ 81 u16 chip_num; 82 u16 hw_ring_stats_size; 83 u16 pf_port_id; 84 unsigned long en_state; /* Could be checked in 85 * RoCE driver suspend 86 * mode only. Will be 87 * updated in resume. 88 */ 89 void __iomem *bar0; 90 91 u16 ulp_num_msix_vec; 92 u16 ulp_num_ctxs; 93 94 /* serialize ulp operations */ 95 struct mutex en_dev_lock; 96 }; 97 98 static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev) 99 { 100 if (edev && rcu_access_pointer(edev->ulp_tbl->ulp_ops)) 101 return true; 102 return false; 103 } 104 105 int bnxt_get_ulp_msix_num(struct bnxt *bp); 106 int bnxt_get_ulp_msix_num_in_use(struct bnxt *bp); 107 void bnxt_set_ulp_msix_num(struct bnxt *bp, int num); 108 int bnxt_get_ulp_stat_ctxs(struct bnxt *bp); 109 void bnxt_set_ulp_stat_ctxs(struct bnxt *bp, int num_ctxs); 110 int bnxt_get_ulp_stat_ctxs_in_use(struct bnxt *bp); 111 void bnxt_set_dflt_ulp_stat_ctxs(struct bnxt *bp); 112 void bnxt_ulp_stop(struct bnxt *bp); 113 void bnxt_ulp_start(struct bnxt *bp, int err); 114 void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs); 115 void bnxt_ulp_irq_stop(struct bnxt *bp); 116 void bnxt_ulp_irq_restart(struct bnxt *bp, int err); 117 void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl); 118 void bnxt_rdma_aux_device_uninit(struct bnxt *bp); 119 void bnxt_rdma_aux_device_del(struct bnxt *bp); 120 void bnxt_rdma_aux_device_add(struct bnxt *bp); 121 void bnxt_rdma_aux_device_init(struct bnxt *bp); 122 int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops, 123 void *handle); 124 void bnxt_unregister_dev(struct bnxt_en_dev *edev); 125 int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg); 126 int bnxt_register_async_events(struct bnxt_en_dev *edev, 127 unsigned long *events_bmap, u16 max_id); 128 #endif 129