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/* 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
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