1 /* SPDX-License-Identifier: BSD-3-Clause */
2 /* Copyright(c) 2007-2022 Intel Corporation */
3 /* $FreeBSD$ */
4 #include "adf_c4xxx_hw_data.h"
5 #include "adf_c4xxx_misc_error_stats.h"
6 #include "adf_common_drv.h"
7 #include "adf_cfg_common.h"
8 #include <sys/sbuf.h>
9 #include <sys/sysctl.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 
23 static int qat_misc_error_show(SYSCTL_HANDLER_ARGS)
24 {
25 	struct sbuf sb;
26 
27 	sbuf_new_for_sysctl(&sb, NULL, 256, req);
28 	sbuf_printf(&sb, "\n");
29 	sbuf_printf(&sb, LINE);
30 	sbuf_printf(&sb,
31 		    "| Miscellaneous Error:   %40llu |\n",
32 		    (unsigned long long)((struct adf_dev_miscellaneous_stats *)
33 					     misc_counter)
34 			->misc_counter);
35 
36 	sbuf_finish(&sb);
37 	SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb));
38 	sbuf_delete(&sb);
39 
40 	return 0;
41 }
42 
43 /**
44  * adf_misc_error_add_c4xxx() - Create debugfs entry for
45  * acceleration device Freq counters.
46  * @accel_dev:  Pointer to acceleration device.
47  *
48  * Return: 0 on success, error code otherwise.
49  */
50 int
51 adf_misc_error_add_c4xxx(struct adf_accel_dev *accel_dev)
52 {
53 	struct sysctl_ctx_list *qat_sysctl_ctx = NULL;
54 	struct sysctl_oid *qat_sysctl_tree = NULL;
55 	struct sysctl_oid *misc_er_file = NULL;
56 
57 	qat_sysctl_ctx =
58 	    device_get_sysctl_ctx(accel_dev->accel_pci_dev.pci_dev);
59 	qat_sysctl_tree =
60 	    device_get_sysctl_tree(accel_dev->accel_pci_dev.pci_dev);
61 
62 	misc_er_file = SYSCTL_ADD_PROC(qat_sysctl_ctx,
63 				       SYSCTL_CHILDREN(qat_sysctl_tree),
64 				       OID_AUTO,
65 				       MISC_ERROR_DBG_FILE,
66 				       CTLTYPE_STRING | CTLFLAG_RD,
67 				       accel_dev,
68 				       0,
69 				       qat_misc_error_show,
70 				       "A",
71 				       "QAT Miscellaneous Error Statistics");
72 	accel_dev->misc_error_dbgfile = misc_er_file;
73 	if (!accel_dev->misc_error_dbgfile) {
74 		device_printf(
75 		    GET_DEV(accel_dev),
76 		    "Failed to create qat miscellaneous error debugfs entry.\n");
77 		return ENOENT;
78 	}
79 
80 	misc_counter = kmalloc(PAGE_SIZE, GFP_KERNEL);
81 	if (!misc_counter)
82 		return ENOMEM;
83 
84 	memset(misc_counter, 0, PAGE_SIZE);
85 
86 	return 0;
87 }
88 
89 /**
90  * adf_misc_error_remove_c4xxx() - Remove debugfs entry for
91  * acceleration device misc error counter.
92  * @accel_dev:  Pointer to acceleration device.
93  *
94  * Return: void
95  */
96 void
97 adf_misc_error_remove_c4xxx(struct adf_accel_dev *accel_dev)
98 {
99 	if (accel_dev->misc_error_dbgfile) {
100 		remove_oid(accel_dev, accel_dev->misc_error_dbgfile);
101 		accel_dev->misc_error_dbgfile = NULL;
102 	}
103 
104 	kfree(misc_counter);
105 	misc_counter = NULL;
106 }
107