1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2021 Broadcom. All Rights Reserved. The term
4 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
5 */
6
7#if !defined(__EFCT_DRIVER_H__)
8#define __EFCT_DRIVER_H__
9
10/***************************************************************************
11 * OS specific includes
12 */
13#include <linux/module.h>
14#include <linux/debugfs.h>
15#include <linux/firmware.h>
16#include "../include/efc_common.h"
17#include "../libefc/efclib.h"
18#include "efct_hw.h"
19#include "efct_io.h"
20#include "efct_xport.h"
21
22#define EFCT_DRIVER_NAME "efct"
23#define EFCT_DRIVER_VERSION "1.0.0.0"
24
25/* EFCT_DEFAULT_FILTER-
26 * MRQ filter to segregate the IO flow.
27 */
28#define EFCT_DEFAULT_FILTER "0x01ff22ff,0,0,0"
29
30/* EFCT_OS_MAX_ISR_TIME_MSEC -
31 * maximum time driver code should spend in an interrupt
32 * or kernel thread context without yielding
33 */
34#define EFCT_OS_MAX_ISR_TIME_MSEC 1000
35
36#define EFCT_FC_MAX_SGL 64
37#define EFCT_FC_DIF_SEED 0
38
39/* Watermark */
40#define EFCT_WATERMARK_HIGH_PCT 90
41#define EFCT_WATERMARK_LOW_PCT 80
42#define EFCT_IO_WATERMARK_PER_INITIATOR 8
43
44#define EFCT_PCI_MAX_REGS 6
45#define MAX_PCI_INTERRUPTS 16
46
47struct efct_intr_context {
48 struct efct *efct;
49 u32 index;
50};
51
52struct efct {
53 struct pci_dev *pci;
54 void __iomem *reg[EFCT_PCI_MAX_REGS];
55
56 u32 n_msix_vec;
57 bool attached;
58 bool soft_wwn_enable;
59 u8 efct_req_fw_upgrade;
60 struct efct_intr_context intr_context[MAX_PCI_INTERRUPTS];
61 u32 numa_node;
62
63 char name[EFC_NAME_LENGTH];
64 u32 instance_index;
65 struct list_head list_entry;
66 struct efct_scsi_tgt tgt_efct;
67 struct efct_xport *xport;
68 struct efc *efcport;
69 struct Scsi_Host *shost;
70 int logmask;
71 u32 max_isr_time_msec;
72
73 const char *desc;
74
75 const char *model;
76
77 struct efct_hw hw;
78
79 u32 rq_selection_policy;
80 char *filter_def;
81 int topology;
82
83 /* Look up for target node */
84 struct xarray lookup;
85
86 /*
87 * Target IO timer value:
88 * Zero: target command timeout disabled.
89 * Non-zero: Timeout value, in seconds, for target commands
90 */
91 u32 target_io_timer_sec;
92
93 int speed;
94 struct dentry *sess_debugfs_dir;
95};
96
97#define FW_WRITE_BUFSIZE (64 * 1024)
98
99struct efct_fw_write_result {
100 struct completion done;
101 int status;
102 u32 actual_xfer;
103 u32 change_status;
104};
105
106extern struct list_head efct_devices;
107
108#endif /* __EFCT_DRIVER_H__ */
109

source code of linux/drivers/scsi/elx/efct/efct_driver.h