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
39 list_for_each_entry_safe(fq, tmp, &priv->dpaa_fq_list, list) {
40 switch (fq->fq_type) {
41 case FQ_TYPE_RX_DEFAULT:
42 str = "Rx default";
43 break;
44 case FQ_TYPE_RX_ERROR:
45 str = "Rx error";
46 break;
47 case FQ_TYPE_RX_PCD:
48 str = "Rx PCD";
49 break;
50 case FQ_TYPE_TX_CONFIRM:
51 str = "Tx default confirmation";
52 break;
53 case FQ_TYPE_TX_CONF_MQ:
54 str = "Tx confirmation (mq)";
55 break;
56 case FQ_TYPE_TX_ERROR:
57 str = "Tx error";
58 break;
59 case FQ_TYPE_TX:
60 str = "Tx";
61 break;
62 default:
63 str = "Unknown";
64 }
65
66 if (prev && (abs(fq->fqid - prev->fqid) != 1 ||
67 str != prevstr)) {
68 if (last_fqid == first_fqid)
69 bytes += sprintf(buf + bytes,
70 "%s: %d\n", prevstr, prev->fqid);
71 else
72 bytes += sprintf(buf + bytes,
73 "%s: %d - %d\n", prevstr,
74 first_fqid, last_fqid);
75 }
76
77 if (prev && abs(fq->fqid - prev->fqid) == 1 &&
78 str == prevstr) {
79 last_fqid = fq->fqid;
80 } else {
81 first_fqid = fq->fqid;
82 last_fqid = fq->fqid;
83 }
84
85 prev = fq;
86 prevstr = str;
87 }
88
89 if (prev) {
90 if (last_fqid == first_fqid)
91 bytes += sprintf(buf + bytes, "%s: %d\n", prevstr,
92 prev->fqid);
93 else
94 bytes += sprintf(buf + bytes, "%s: %d - %d\n", prevstr,
95 first_fqid, last_fqid);
96 }
97
98 return bytes;
99 }
100
dpaa_eth_show_bpids(struct device * dev,struct device_attribute * attr,char * buf)101 static ssize_t dpaa_eth_show_bpids(struct device *dev,
102 struct device_attribute *attr, char *buf)
103 {
104 struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
105 ssize_t bytes = 0;
106
107 bytes += snprintf(buf + bytes, PAGE_SIZE - bytes, "%u\n",
108 priv->dpaa_bp->bpid);
109
110 return bytes;
111 }
112
113 static struct device_attribute dpaa_eth_attrs[] = {
114 __ATTR(device_addr, 0444, dpaa_eth_show_addr, NULL),
115 __ATTR(fqids, 0444, dpaa_eth_show_fqids, NULL),
116 __ATTR(bpids, 0444, dpaa_eth_show_bpids, NULL),
117 };
118
dpaa_eth_sysfs_init(struct device * dev)119 void dpaa_eth_sysfs_init(struct device *dev)
120 {
121 int i;
122
123 for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
124 if (device_create_file(dev, &dpaa_eth_attrs[i])) {
125 dev_err(dev, "Error creating sysfs file\n");
126 while (i > 0)
127 device_remove_file(dev, &dpaa_eth_attrs[--i]);
128 return;
129 }
130 }
131
dpaa_eth_sysfs_remove(struct device * dev)132 void dpaa_eth_sysfs_remove(struct device *dev)
133 {
134 int i;
135
136 for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
137 device_remove_file(dev, &dpaa_eth_attrs[i]);
138 }
139