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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | /* Broadcom NetXtreme-C/E network driver. * * Copyright (c) 2016-2018 Broadcom Limited * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation. */ #ifndef BNXT_ULP_H #define BNXT_ULP_H #define BNXT_ROCE_ULP 0 #define BNXT_MAX_ULP 1 #define BNXT_MIN_ROCE_CP_RINGS 2 #define BNXT_MIN_ROCE_STAT_CTXS 1 struct hwrm_async_event_cmpl; struct bnxt; struct bnxt_msix_entry { u32 vector; u32 ring_idx; u32 db_offset; }; struct bnxt_ulp_ops { /* async_notifier() cannot sleep (in BH context) */ void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *); void (*ulp_stop)(void *); void (*ulp_start)(void *); void (*ulp_sriov_config)(void *, int); void (*ulp_shutdown)(void *); void (*ulp_irq_stop)(void *); void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *); }; struct bnxt_fw_msg { void *msg; int msg_len; void *resp; int resp_max_len; int timeout; }; struct bnxt_ulp { void *handle; struct bnxt_ulp_ops __rcu *ulp_ops; unsigned long *async_events_bmap; u16 max_async_event_id; u16 msix_requested; u16 msix_base; atomic_t ref_count; }; struct bnxt_en_dev { struct net_device *net; struct pci_dev *pdev; u32 flags; #define BNXT_EN_FLAG_ROCEV1_CAP 0x1 #define BNXT_EN_FLAG_ROCEV2_CAP 0x2 #define BNXT_EN_FLAG_ROCE_CAP (BNXT_EN_FLAG_ROCEV1_CAP | \ BNXT_EN_FLAG_ROCEV2_CAP) #define BNXT_EN_FLAG_MSIX_REQUESTED 0x4 #define BNXT_EN_FLAG_ULP_STOPPED 0x8 const struct bnxt_en_ops *en_ops; struct bnxt_ulp ulp_tbl[BNXT_MAX_ULP]; int l2_db_size; /* Doorbell BAR size in * bytes mapped by L2 * driver. */ int l2_db_size_nc; /* Doorbell BAR size in * bytes mapped as non- * cacheable. */ }; struct bnxt_en_ops { int (*bnxt_register_device)(struct bnxt_en_dev *, unsigned int, struct bnxt_ulp_ops *, void *); int (*bnxt_unregister_device)(struct bnxt_en_dev *, unsigned int); int (*bnxt_request_msix)(struct bnxt_en_dev *, unsigned int, struct bnxt_msix_entry *, int); int (*bnxt_free_msix)(struct bnxt_en_dev *, unsigned int); int (*bnxt_send_fw_msg)(struct bnxt_en_dev *, unsigned int, struct bnxt_fw_msg *); int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *, unsigned int, unsigned long *, u16); }; static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id) { if (edev && rcu_access_pointer(edev->ulp_tbl[ulp_id].ulp_ops)) return true; return false; } int bnxt_get_ulp_msix_num(struct bnxt *bp); int bnxt_get_ulp_msix_base(struct bnxt *bp); int bnxt_get_ulp_stat_ctxs(struct bnxt *bp); void bnxt_ulp_stop(struct bnxt *bp); void bnxt_ulp_start(struct bnxt *bp, int err); void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs); void bnxt_ulp_shutdown(struct bnxt *bp); void bnxt_ulp_irq_stop(struct bnxt *bp); void bnxt_ulp_irq_restart(struct bnxt *bp, int err); void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl); struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev); #endif |