1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
* Intel MIC Platform Software Stack (MPSS)
*
* Copyright(c) 2013 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Intel MIC Host driver.
*
*/
#include <linux/debugfs.h>
#include <linux/pci.h>
#include <linux/seq_file.h>
#include <linux/mic_common.h>
#include "../common/mic_dev.h"
#include "mic_device.h"
#include "mic_smpt.h"
/* Debugfs parent dir */
static struct dentry *mic_dbg;
static int mic_smpt_show(struct seq_file *s, void *pos)
{
int i;
struct mic_device *mdev = s->private;
unsigned long flags;
seq_printf(s, "MIC %-2d |%-10s| %-14s %-10s\n",
mdev->id, "SMPT entry", "SW DMA addr", "RefCount");
seq_puts(s, "====================================================\n");
if (mdev->smpt) {
struct mic_smpt_info *smpt_info = mdev->smpt;
spin_lock_irqsave(&smpt_info->smpt_lock, flags);
for (i = 0; i < smpt_info->info.num_reg; i++) {
seq_printf(s, "%9s|%-10d| %-#14llx %-10lld\n",
" ", i, smpt_info->entry[i].dma_addr,
smpt_info->entry[i].ref_count);
}
spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
}
seq_puts(s, "====================================================\n");
return 0;
}
DEFINE_SHOW_ATTRIBUTE(mic_smpt);
static int mic_post_code_show(struct seq_file *s, void *pos)
{
struct mic_device *mdev = s->private;
u32 reg = mdev->ops->get_postcode(mdev);
seq_printf(s, "%c%c", reg & 0xff, (reg >> 8) & 0xff);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(mic_post_code);
static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
{
struct mic_device *mdev = s->private;
int reg;
int i, j;
u16 entry;
u16 vector;
struct pci_dev *pdev = mdev->pdev;
if (pci_dev_msi_enabled(pdev)) {
for (i = 0; i < mdev->irq_info.num_vectors; i++) {
if (pdev->msix_enabled) {
entry = mdev->irq_info.msix_entries[i].entry;
vector = mdev->irq_info.msix_entries[i].vector;
} else {
entry = 0;
vector = pdev->irq;
}
reg = mdev->intr_ops->read_msi_to_src_map(mdev, entry);
seq_printf(s, "%s %-10d %s %-10d MXAR[%d]: %08X\n",
"IRQ:", vector, "Entry:", entry, i, reg);
seq_printf(s, "%-10s", "offset:");
for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
seq_printf(s, "%4d ", j);
seq_puts(s, "\n");
seq_printf(s, "%-10s", "count:");
for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
seq_printf(s, "%4d ",
(mdev->irq_info.mic_msi_map[i] &
BIT(j)) ? 1 : 0);
seq_puts(s, "\n\n");
}
} else {
seq_puts(s, "MSI/MSIx interrupts not enabled\n");
}
return 0;
}
DEFINE_SHOW_ATTRIBUTE(mic_msi_irq_info);
/**
* mic_create_debug_dir - Initialize MIC debugfs entries.
*/
void mic_create_debug_dir(struct mic_device *mdev)
{
char name[16];
if (!mic_dbg)
return;
scnprintf(name, sizeof(name), "mic%d", mdev->id);
mdev->dbg_dir = debugfs_create_dir(name, mic_dbg);
if (!mdev->dbg_dir)
return;
debugfs_create_file("smpt", 0444, mdev->dbg_dir, mdev,
&mic_smpt_fops);
debugfs_create_file("post_code", 0444, mdev->dbg_dir, mdev,
&mic_post_code_fops);
debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir, mdev,
&mic_msi_irq_info_fops);
}
/**
* mic_delete_debug_dir - Uninitialize MIC debugfs entries.
*/
void mic_delete_debug_dir(struct mic_device *mdev)
{
if (!mdev->dbg_dir)
return;
debugfs_remove_recursive(mdev->dbg_dir);
}
/**
* mic_init_debugfs - Initialize global debugfs entry.
*/
void __init mic_init_debugfs(void)
{
mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
if (!mic_dbg)
pr_err("can't create debugfs dir\n");
}
/**
* mic_exit_debugfs - Uninitialize global debugfs entry
*/
void mic_exit_debugfs(void)
{
debugfs_remove(mic_dbg);
}
|
