cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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bnxt_ulp.h (3111B)

      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
     19struct hwrm_async_event_cmpl;
     20struct bnxt;
     21
     22struct bnxt_msix_entry {
     23	u32	vector;
     24	u32	ring_idx;
     25	u32	db_offset;
     26};
     27
     28struct bnxt_ulp_ops {
     29	/* async_notifier() cannot sleep (in BH context) */
     30	void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *);
     31	void (*ulp_stop)(void *);
     32	void (*ulp_start)(void *);
     33	void (*ulp_sriov_config)(void *, int);
     34	void (*ulp_shutdown)(void *);
     35	void (*ulp_irq_stop)(void *);
     36	void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *);
     37};
     38
     39struct bnxt_fw_msg {
     40	void	*msg;
     41	int	msg_len;
     42	void	*resp;
     43	int	resp_max_len;
     44	int	timeout;
     45};
     46
     47struct bnxt_ulp {
     48	void		*handle;
     49	struct bnxt_ulp_ops __rcu *ulp_ops;
     50	unsigned long	*async_events_bmap;
     51	u16		max_async_event_id;
     52	u16		msix_requested;
     53	u16		msix_base;
     54	atomic_t	ref_count;
     55};
     56
     57struct bnxt_en_dev {
     58	struct net_device *net;
     59	struct pci_dev *pdev;
     60	u32 flags;
     61	#define BNXT_EN_FLAG_ROCEV1_CAP		0x1
     62	#define BNXT_EN_FLAG_ROCEV2_CAP		0x2
     63	#define BNXT_EN_FLAG_ROCE_CAP		(BNXT_EN_FLAG_ROCEV1_CAP | \
     64						 BNXT_EN_FLAG_ROCEV2_CAP)
     65	#define BNXT_EN_FLAG_MSIX_REQUESTED	0x4
     66	#define BNXT_EN_FLAG_ULP_STOPPED	0x8
     67	const struct bnxt_en_ops	*en_ops;
     68	struct bnxt_ulp			ulp_tbl[BNXT_MAX_ULP];
     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};
     78
     79struct bnxt_en_ops {
     80	int (*bnxt_register_device)(struct bnxt_en_dev *, unsigned int,
     81				    struct bnxt_ulp_ops *, void *);
     82	int (*bnxt_unregister_device)(struct bnxt_en_dev *, unsigned int);
     83	int (*bnxt_request_msix)(struct bnxt_en_dev *, unsigned int,
     84				 struct bnxt_msix_entry *, int);
     85	int (*bnxt_free_msix)(struct bnxt_en_dev *, unsigned int);
     86	int (*bnxt_send_fw_msg)(struct bnxt_en_dev *, unsigned int,
     87				struct bnxt_fw_msg *);
     88	int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *, unsigned int,
     89					     unsigned long *, u16);
     90};
     91
     92static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id)
     93{
     94	if (edev && rcu_access_pointer(edev->ulp_tbl[ulp_id].ulp_ops))
     95		return true;
     96	return false;
     97}
     98
     99int bnxt_get_ulp_msix_num(struct bnxt *bp);
    100int bnxt_get_ulp_msix_base(struct bnxt *bp);
    101int bnxt_get_ulp_stat_ctxs(struct bnxt *bp);
    102void bnxt_ulp_stop(struct bnxt *bp);
    103void bnxt_ulp_start(struct bnxt *bp, int err);
    104void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs);
    105void bnxt_ulp_shutdown(struct bnxt *bp);
    106void bnxt_ulp_irq_stop(struct bnxt *bp);
    107void bnxt_ulp_irq_restart(struct bnxt *bp, int err);
    108void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl);
    109struct bnxt_en_dev *bnxt_ulp_probe(struct net_device *dev);
    110
    111#endif