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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hinic_hw_io.h (2605B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Huawei HiNIC PCI Express Linux driver
      4 * Copyright(c) 2017 Huawei Technologies Co., Ltd
      5 */
      6
      7#ifndef HINIC_HW_IO_H
      8#define HINIC_HW_IO_H
      9
     10#include <linux/types.h>
     11#include <linux/pci.h>
     12#include <linux/semaphore.h>
     13#include <linux/sizes.h>
     14
     15#include "hinic_hw_if.h"
     16#include "hinic_hw_eqs.h"
     17#include "hinic_hw_wq.h"
     18#include "hinic_hw_cmdq.h"
     19#include "hinic_hw_qp.h"
     20
     21#define HINIC_DB_PAGE_SIZE      SZ_4K
     22#define HINIC_DB_SIZE           SZ_4M
     23#define HINIC_HW_WQ_PAGE_SIZE	SZ_4K
     24#define HINIC_DEFAULT_WQ_PAGE_SIZE SZ_256K
     25
     26#define HINIC_DB_MAX_AREAS      (HINIC_DB_SIZE / HINIC_DB_PAGE_SIZE)
     27
     28enum hinic_db_type {
     29	HINIC_DB_CMDQ_TYPE,
     30	HINIC_DB_SQ_TYPE,
     31};
     32
     33enum hinic_io_path {
     34	HINIC_CTRL_PATH,
     35	HINIC_DATA_PATH,
     36};
     37
     38struct hinic_free_db_area {
     39	int             db_idx[HINIC_DB_MAX_AREAS];
     40
     41	int             alloc_pos;
     42	int             return_pos;
     43
     44	int             num_free;
     45
     46	/* Lock for getting db area */
     47	struct semaphore        idx_lock;
     48};
     49
     50struct hinic_nic_cfg {
     51	/* lock for getting nic cfg */
     52	struct mutex		cfg_mutex;
     53	bool			pause_set;
     54	u32			auto_neg;
     55	u32			rx_pause;
     56	u32			tx_pause;
     57};
     58
     59struct hinic_func_to_io {
     60	struct hinic_hwif       *hwif;
     61	struct hinic_hwdev      *hwdev;
     62	u16			global_qpn;
     63	struct hinic_ceqs       ceqs;
     64
     65	struct hinic_wqs        wqs;
     66
     67	struct hinic_wq         *sq_wq;
     68	struct hinic_wq         *rq_wq;
     69
     70	struct hinic_qp         *qps;
     71	u16                     max_qps;
     72
     73	u16			sq_depth;
     74	u16			rq_depth;
     75
     76	void __iomem            **sq_db;
     77	void __iomem            *db_base;
     78
     79	void                    *ci_addr_base;
     80	dma_addr_t              ci_dma_base;
     81
     82	struct hinic_free_db_area       free_db_area;
     83
     84	void __iomem                    *cmdq_db_area[HINIC_MAX_CMDQ_TYPES];
     85
     86	struct hinic_cmdqs              cmdqs;
     87
     88	u16			max_vfs;
     89	struct vf_data_storage	*vf_infos;
     90	u8			link_status;
     91	struct hinic_nic_cfg	nic_cfg;
     92};
     93
     94struct hinic_wq_page_size {
     95	u8	status;
     96	u8	version;
     97	u8	rsvd0[6];
     98
     99	u16	func_idx;
    100	u8	ppf_idx;
    101	u8	page_size;
    102
    103	u32	rsvd1;
    104};
    105
    106int hinic_set_wq_page_size(struct hinic_hwdev *hwdev, u16 func_idx,
    107			   u32 page_size);
    108
    109int hinic_io_create_qps(struct hinic_func_to_io *func_to_io,
    110			u16 base_qpn, int num_qps,
    111			struct msix_entry *sq_msix_entries,
    112			struct msix_entry *rq_msix_entries);
    113
    114void hinic_io_destroy_qps(struct hinic_func_to_io *func_to_io,
    115			  int num_qps);
    116
    117int hinic_io_init(struct hinic_func_to_io *func_to_io,
    118		  struct hinic_hwif *hwif, u16 max_qps, int num_ceqs,
    119		  struct msix_entry *ceq_msix_entries);
    120
    121void hinic_io_free(struct hinic_func_to_io *func_to_io);
    122
    123#endif