/* Broadcom NetXtreme-C/E network driver.
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*
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* Copyright (c) 2016-2018 Broadcom Limited
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*/
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#ifndef BNXT_ULP_H
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#define BNXT_ULP_H
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#define BNXT_ROCE_ULP 0
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#define BNXT_OTHER_ULP 1
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#define BNXT_MAX_ULP 2
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#define BNXT_MIN_ROCE_CP_RINGS 2
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#define BNXT_MIN_ROCE_STAT_CTXS 1
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struct hwrm_async_event_cmpl;
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struct bnxt;
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struct bnxt_msix_entry {
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u32 vector;
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u32 ring_idx;
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u32 db_offset;
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};
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struct bnxt_ulp_ops {
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/* async_notifier() cannot sleep (in BH context) */
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void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *);
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void (*ulp_stop)(void *);
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void (*ulp_start)(void *);
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void (*ulp_sriov_config)(void *, int);
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void (*ulp_shutdown)(void *);
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void (*ulp_irq_stop)(void *);
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void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *);
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};
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struct bnxt_fw_msg {
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void *msg;
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int msg_len;
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void *resp;
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int resp_max_len;
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int timeout;
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};
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struct bnxt_ulp {
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void *handle;
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struct bnxt_ulp_ops __rcu *ulp_ops;
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unsigned long *async_events_bmap;
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u16 max_async_event_id;
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u16 msix_requested;
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u16 msix_base;
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atomic_t ref_count;
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};
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struct bnxt_en_dev {
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struct net_device *net;
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struct pci_dev *pdev;
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u32 flags;
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#define BNXT_EN_FLAG_ROCEV1_CAP 0x1
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#define BNXT_EN_FLAG_ROCEV2_CAP 0x2
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#define BNXT_EN_FLAG_ROCE_CAP (BNXT_EN_FLAG_ROCEV1_CAP | \
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BNXT_EN_FLAG_ROCEV2_CAP)
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#define BNXT_EN_FLAG_MSIX_REQUESTED 0x4
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#define BNXT_EN_FLAG_ULP_STOPPED 0x8
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const struct bnxt_en_ops *en_ops;
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struct bnxt_ulp ulp_tbl[BNXT_MAX_ULP];
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int l2_db_size; /* Doorbell BAR size in
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* bytes mapped by L2
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* driver.
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*/
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int l2_db_size_nc; /* Doorbell BAR size in
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* bytes mapped as non-
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* cacheable.
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*/
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};
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struct bnxt_en_ops {
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int (*bnxt_register_device)(struct bnxt_en_dev *, int,
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struct bnxt_ulp_ops *, void *);
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int (*bnxt_unregister_device)(struct bnxt_en_dev *, int);
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int (*bnxt_request_msix)(struct bnxt_en_dev *, int,
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struct bnxt_msix_entry *, int);
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int (*bnxt_free_msix)(struct bnxt_en_dev *, int);
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int (*bnxt_send_fw_msg)(struct bnxt_en_dev *, int,
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struct bnxt_fw_msg *);
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int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *, int,
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unsigned long *, u16);
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};
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static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id)
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{
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if (edev && rcu_access_pointer(edev->ulp_tbl[ulp_id].ulp_ops))
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return true;
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return false;
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}
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int bnxt_get_ulp_msix_num(struct bnxt *bp);
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int bnxt_get_ulp_msix_base(struct bnxt *bp);
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int bnxt_get_ulp_stat_ctxs(struct bnxt *bp);
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void bnxt_ulp_stop(struct bnxt *bp);
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void bnxt_ulp_start(struct bnxt *bp, int err);
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void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs);
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void bnxt_ulp_shutdown(struct bnxt *bp);
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void bnxt_ulp_irq_stop(struct bnxt *bp);
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void bnxt_ulp_irq_restart(struct bnxt *bp, int err);
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void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl);
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struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev);
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#endif
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