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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
#define BNXT_MAX_ROCE_MSIX_VF 2
#define BNXT_MAX_ROCE_MSIX_NPAR_PF 5
#define BNXT_MAX_ROCE_MSIX 64
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_irq_stop)(void *, bool);
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;
atomic_t ref_count;
};
struct bnxt_en_dev {
struct net_device *net;
struct pci_dev *pdev;
struct bnxt_msix_entry msix_entries[BNXT_MAX_ROCE_MSIX];
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
#define BNXT_EN_FLAG_VF 0x10
#define BNXT_EN_VF(edev) ((edev)->flags & BNXT_EN_FLAG_VF)
#define BNXT_EN_FLAG_ROCE_VF_RES_MGMT 0x20
#define BNXT_EN_FLAG_SW_RES_LMT 0x40
#define BNXT_EN_SW_RES_LMT(edev) ((edev)->flags & BNXT_EN_FLAG_SW_RES_LMT)
struct bnxt_ulp *ulp_tbl;
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.
*/
int l2_db_offset; /* Doorbell offset in
* bytes within
* l2_db_size_nc.
*/
u16 chip_num;
u16 hw_ring_stats_size;
u16 pf_port_id;
unsigned long en_state; /* Could be checked in
* RoCE driver suspend
* mode only. Will be
* updated in resume.
*/
void __iomem *bar0;
u16 ulp_num_msix_vec;
u16 ulp_num_ctxs;
/* serialize ulp operations */
struct mutex en_dev_lock;
};
static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev)
{
if (edev && rcu_access_pointer(edev->ulp_tbl->ulp_ops))
return true;
return false;
}
int bnxt_get_ulp_msix_num(struct bnxt *bp);
int bnxt_get_ulp_msix_num_in_use(struct bnxt *bp);
void bnxt_set_ulp_msix_num(struct bnxt *bp, int num);
int bnxt_get_ulp_stat_ctxs(struct bnxt *bp);
void bnxt_set_ulp_stat_ctxs(struct bnxt *bp, int num_ctxs);
int bnxt_get_ulp_stat_ctxs_in_use(struct bnxt *bp);
void bnxt_set_dflt_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_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);
void bnxt_rdma_aux_device_uninit(struct bnxt *bp);
void bnxt_rdma_aux_device_del(struct bnxt *bp);
void bnxt_rdma_aux_device_add(struct bnxt *bp);
void bnxt_rdma_aux_device_init(struct bnxt *bp);
int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops,
void *handle);
void bnxt_unregister_dev(struct bnxt_en_dev *edev);
int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg);
void bnxt_register_async_events(struct bnxt_en_dev *edev,
unsigned long *events_bmap, u16 max_id);
#endif
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