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 | |
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, fmt: "%llx" , |
21 | (unsigned long long)mac_dev->res->start); |
22 | else |
23 | return sprintf(buf, fmt: "none" ); |
24 | } |
25 | |
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: buf + bytes, |
71 | fmt: "%s: %d\n" , prevstr, prev->fqid); |
72 | else |
73 | bytes += sprintf(buf: buf + bytes, |
74 | fmt: "%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: buf + bytes, fmt: "%s: %d\n" , prevstr, |
94 | prev->fqid); |
95 | else |
96 | bytes += sprintf(buf: buf + bytes, fmt: "%s: %d - %d\n" , prevstr, |
97 | first_fqid, last_fqid); |
98 | } |
99 | |
100 | return bytes; |
101 | } |
102 | |
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: buf + bytes, PAGE_SIZE - bytes, fmt: "%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 | |
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(device: dev, entry: &dpaa_eth_attrs[i])) { |
127 | dev_err(dev, "Error creating sysfs file\n" ); |
128 | while (i > 0) |
129 | device_remove_file(dev, attr: &dpaa_eth_attrs[--i]); |
130 | return; |
131 | } |
132 | } |
133 | |
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, attr: &dpaa_eth_attrs[i]); |
140 | } |
141 | |