1 /* SPDX-License-Identifier: BSD-3-Clause */
2 /* Copyright(c) 2007-2025 Intel Corporation */
3 #include "adf_c4xxx_hw_data.h"
4 #include "adf_c4xxx_misc_error_stats.h"
5 #include "adf_common_drv.h"
6 #include "adf_cfg_common.h"
7 #include <sys/sbuf.h>
8 #include <sys/sysctl.h>
9 #include <sys/priv.h>
10
11 #define MISC_ERROR_DBG_FILE "misc_error_stats"
12 #define LINE \
13 "+-----------------------------------------------------------------+\n"
14 #define BANNER \
15 "| Miscellaneous Error Statistics for Qat Device |\n"
16
17 static void *misc_counter;
18
19 struct adf_dev_miscellaneous_stats {
20 u64 misc_counter;
21 };
22
qat_misc_error_show(SYSCTL_HANDLER_ARGS)23 static int qat_misc_error_show(SYSCTL_HANDLER_ARGS)
24 {
25 struct sbuf sb;
26
27 if (priv_check(curthread, PRIV_DRIVER) != 0)
28 return EPERM;
29
30 sbuf_new_for_sysctl(&sb, NULL, 256, req);
31 sbuf_printf(&sb, "\n");
32 sbuf_printf(&sb, LINE);
33 sbuf_printf(&sb,
34 "| Miscellaneous Error: %40llu |\n",
35 (unsigned long long)((struct adf_dev_miscellaneous_stats *)
36 misc_counter)
37 ->misc_counter);
38
39 sbuf_finish(&sb);
40 SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb));
41 sbuf_delete(&sb);
42
43 return 0;
44 }
45
46 /**
47 * adf_misc_error_add_c4xxx() - Create debugfs entry for
48 * acceleration device Freq counters.
49 * @accel_dev: Pointer to acceleration device.
50 *
51 * Return: 0 on success, error code otherwise.
52 */
53 int
adf_misc_error_add_c4xxx(struct adf_accel_dev * accel_dev)54 adf_misc_error_add_c4xxx(struct adf_accel_dev *accel_dev)
55 {
56 struct sysctl_ctx_list *qat_sysctl_ctx = NULL;
57 struct sysctl_oid *qat_sysctl_tree = NULL;
58 struct sysctl_oid *misc_er_file = NULL;
59
60 qat_sysctl_ctx =
61 device_get_sysctl_ctx(accel_dev->accel_pci_dev.pci_dev);
62 qat_sysctl_tree =
63 device_get_sysctl_tree(accel_dev->accel_pci_dev.pci_dev);
64
65 misc_er_file = SYSCTL_ADD_PROC(qat_sysctl_ctx,
66 SYSCTL_CHILDREN(qat_sysctl_tree),
67 OID_AUTO,
68 MISC_ERROR_DBG_FILE,
69 CTLTYPE_STRING | CTLFLAG_RD,
70 accel_dev,
71 0,
72 qat_misc_error_show,
73 "A",
74 "QAT Miscellaneous Error Statistics");
75 accel_dev->misc_error_dbgfile = misc_er_file;
76 if (!accel_dev->misc_error_dbgfile) {
77 device_printf(
78 GET_DEV(accel_dev),
79 "Failed to create qat miscellaneous error debugfs entry.\n");
80 return ENOENT;
81 }
82
83 misc_counter = kmalloc(PAGE_SIZE, GFP_KERNEL);
84 if (!misc_counter)
85 return ENOMEM;
86
87 memset(misc_counter, 0, PAGE_SIZE);
88
89 return 0;
90 }
91
92 /**
93 * adf_misc_error_remove_c4xxx() - Remove debugfs entry for
94 * acceleration device misc error counter.
95 * @accel_dev: Pointer to acceleration device.
96 *
97 * Return: void
98 */
99 void
adf_misc_error_remove_c4xxx(struct adf_accel_dev * accel_dev)100 adf_misc_error_remove_c4xxx(struct adf_accel_dev *accel_dev)
101 {
102 if (accel_dev->misc_error_dbgfile) {
103 remove_oid(accel_dev, accel_dev->misc_error_dbgfile);
104 accel_dev->misc_error_dbgfile = NULL;
105 }
106
107 kfree(misc_counter);
108 misc_counter = NULL;
109 }
110