1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later
2 /*
3 * Copyright 2008 - 2016 Freescale Semiconductor Inc.
4 */
5
6 #include <linux/init.h>
7 #include <linux/module.h>
8 #include <linux/io.h>
9 #include <linux/of_net.h>
10 #include "dpaa_eth.h"
11 #include "mac.h"
12
dpaa_eth_show_addr(struct device * dev,struct device_attribute * attr,char * buf)13 static ssize_t dpaa_eth_show_addr(struct device *dev,
14 struct device_attribute *attr, char *buf)
15 {
16 struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
17 struct mac_device *mac_dev = priv->mac_dev;
18
19 if (mac_dev)
20 return sprintf(buf, "%llx",
21 (unsigned long long)mac_dev->res->start);
22 else
23 return sprintf(buf, "none");
24 }
25
dpaa_eth_show_fqids(struct device * dev,struct device_attribute * attr,char * buf)26 static ssize_t dpaa_eth_show_fqids(struct device *dev,
27 struct device_attribute *attr, char *buf)
28 {
29 struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
30 struct dpaa_fq *prev = NULL;
31 char *prevstr = NULL;
32 struct dpaa_fq *tmp;
33 struct dpaa_fq *fq;
34 u32 first_fqid = 0;
35 u32 last_fqid = 0;
36 ssize_t bytes = 0;
37 char *str;
38 int i = 0;
39
40 list_for_each_entry_safe(fq, tmp, &priv->dpaa_fq_list, list) {
41 switch (fq->fq_type) {
42 case FQ_TYPE_RX_DEFAULT:
43 str = "Rx default";
44 break;
45 case FQ_TYPE_RX_ERROR:
46 str = "Rx error";
47 break;
48 case FQ_TYPE_RX_PCD:
49 str = "Rx PCD";
50 break;
51 case FQ_TYPE_TX_CONFIRM:
52 str = "Tx default confirmation";
53 break;
54 case FQ_TYPE_TX_CONF_MQ:
55 str = "Tx confirmation (mq)";
56 break;
57 case FQ_TYPE_TX_ERROR:
58 str = "Tx error";
59 break;
60 case FQ_TYPE_TX:
61 str = "Tx";
62 break;
63 default:
64 str = "Unknown";
65 }
66
67 if (prev && (abs(fq->fqid - prev->fqid) != 1 ||
68 str != prevstr)) {
69 if (last_fqid == first_fqid)
70 bytes += sprintf(buf + bytes,
71 "%s: %d\n", prevstr, prev->fqid);
72 else
73 bytes += sprintf(buf + bytes,
74 "%s: %d - %d\n", prevstr,
75 first_fqid, last_fqid);
76 }
77
78 if (prev && abs(fq->fqid - prev->fqid) == 1 &&
79 str == prevstr) {
80 last_fqid = fq->fqid;
81 } else {
82 first_fqid = fq->fqid;
83 last_fqid = fq->fqid;
84 }
85
86 prev = fq;
87 prevstr = str;
88 i++;
89 }
90
91 if (prev) {
92 if (last_fqid == first_fqid)
93 bytes += sprintf(buf + bytes, "%s: %d\n", prevstr,
94 prev->fqid);
95 else
96 bytes += sprintf(buf + bytes, "%s: %d - %d\n", prevstr,
97 first_fqid, last_fqid);
98 }
99
100 return bytes;
101 }
102
dpaa_eth_show_bpids(struct device * dev,struct device_attribute * attr,char * buf)103 static ssize_t dpaa_eth_show_bpids(struct device *dev,
104 struct device_attribute *attr, char *buf)
105 {
106 struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
107 ssize_t bytes = 0;
108
109 bytes += snprintf(buf + bytes, PAGE_SIZE - bytes, "%u\n",
110 priv->dpaa_bp->bpid);
111
112 return bytes;
113 }
114
115 static struct device_attribute dpaa_eth_attrs[] = {
116 __ATTR(device_addr, 0444, dpaa_eth_show_addr, NULL),
117 __ATTR(fqids, 0444, dpaa_eth_show_fqids, NULL),
118 __ATTR(bpids, 0444, dpaa_eth_show_bpids, NULL),
119 };
120
dpaa_eth_sysfs_init(struct device * dev)121 void dpaa_eth_sysfs_init(struct device *dev)
122 {
123 int i;
124
125 for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
126 if (device_create_file(dev, &dpaa_eth_attrs[i])) {
127 dev_err(dev, "Error creating sysfs file\n");
128 while (i > 0)
129 device_remove_file(dev, &dpaa_eth_attrs[--i]);
130 return;
131 }
132 }
133
dpaa_eth_sysfs_remove(struct device * dev)134 void dpaa_eth_sysfs_remove(struct device *dev)
135 {
136 int i;
137
138 for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
139 device_remove_file(dev, &dpaa_eth_attrs[i]);
140 }
141