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 | |
47 | struct efct_intr_context { |
48 | struct efct *efct; |
49 | u32 index; |
50 | }; |
51 | |
52 | struct 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 | |
99 | struct efct_fw_write_result { |
100 | struct completion done; |
101 | int status; |
102 | u32 actual_xfer; |
103 | u32 change_status; |
104 | }; |
105 | |
106 | extern struct list_head efct_devices; |
107 | |
108 | #endif /* __EFCT_DRIVER_H__ */ |
109 | |