This source file includes following definitions.
- qcaspi_info_show
- qcaspi_init_device_debugfs
- qcaspi_remove_device_debugfs
- qcaspi_init_device_debugfs
- qcaspi_remove_device_debugfs
- qcaspi_get_drvinfo
- qcaspi_get_link_ksettings
- qcaspi_get_ethtool_stats
- qcaspi_get_strings
- qcaspi_get_sset_count
- qcaspi_get_regs_len
- qcaspi_get_regs
- qcaspi_get_ringparam
- qcaspi_set_ringparam
- qcaspi_set_ethtool_ops
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23 #include <linux/debugfs.h>
24 #include <linux/ethtool.h>
25 #include <linux/seq_file.h>
26 #include <linux/types.h>
27
28 #include "qca_7k.h"
29 #include "qca_debug.h"
30
31 #define QCASPI_MAX_REGS 0x20
32
33 static const u16 qcaspi_spi_regs[] = {
34 SPI_REG_BFR_SIZE,
35 SPI_REG_WRBUF_SPC_AVA,
36 SPI_REG_RDBUF_BYTE_AVA,
37 SPI_REG_SPI_CONFIG,
38 SPI_REG_SPI_STATUS,
39 SPI_REG_INTR_CAUSE,
40 SPI_REG_INTR_ENABLE,
41 SPI_REG_RDBUF_WATERMARK,
42 SPI_REG_WRBUF_WATERMARK,
43 SPI_REG_SIGNATURE,
44 SPI_REG_ACTION_CTRL
45 };
46
47
48
49
50
51 static const char qcaspi_gstrings_stats[][ETH_GSTRING_LEN] = {
52 "Triggered resets",
53 "Device resets",
54 "Reset timeouts",
55 "Read errors",
56 "Write errors",
57 "Read buffer errors",
58 "Write buffer errors",
59 "Out of memory",
60 "Write buffer misses",
61 "Transmit ring full",
62 "SPI errors",
63 "Write verify errors",
64 "Buffer available errors",
65 };
66
67 #ifdef CONFIG_DEBUG_FS
68
69 static int
70 qcaspi_info_show(struct seq_file *s, void *what)
71 {
72 struct qcaspi *qca = s->private;
73
74 seq_printf(s, "RX buffer size : %lu\n",
75 (unsigned long)qca->buffer_size);
76
77 seq_puts(s, "TX ring state : ");
78
79 if (qca->txr.skb[qca->txr.head] == NULL)
80 seq_puts(s, "empty");
81 else if (qca->txr.skb[qca->txr.tail])
82 seq_puts(s, "full");
83 else
84 seq_puts(s, "in use");
85
86 seq_puts(s, "\n");
87
88 seq_printf(s, "TX ring size : %u\n",
89 qca->txr.size);
90
91 seq_printf(s, "Sync state : %u (",
92 (unsigned int)qca->sync);
93 switch (qca->sync) {
94 case QCASPI_SYNC_UNKNOWN:
95 seq_puts(s, "QCASPI_SYNC_UNKNOWN");
96 break;
97 case QCASPI_SYNC_RESET:
98 seq_puts(s, "QCASPI_SYNC_RESET");
99 break;
100 case QCASPI_SYNC_READY:
101 seq_puts(s, "QCASPI_SYNC_READY");
102 break;
103 default:
104 seq_puts(s, "INVALID");
105 break;
106 }
107 seq_puts(s, ")\n");
108
109 seq_printf(s, "IRQ : %d\n",
110 qca->spi_dev->irq);
111 seq_printf(s, "INTR REQ : %u\n",
112 qca->intr_req);
113 seq_printf(s, "INTR SVC : %u\n",
114 qca->intr_svc);
115
116 seq_printf(s, "SPI max speed : %lu\n",
117 (unsigned long)qca->spi_dev->max_speed_hz);
118 seq_printf(s, "SPI mode : %x\n",
119 qca->spi_dev->mode);
120 seq_printf(s, "SPI chip select : %u\n",
121 (unsigned int)qca->spi_dev->chip_select);
122 seq_printf(s, "SPI legacy mode : %u\n",
123 (unsigned int)qca->legacy_mode);
124 seq_printf(s, "SPI burst length : %u\n",
125 (unsigned int)qca->burst_len);
126
127 return 0;
128 }
129 DEFINE_SHOW_ATTRIBUTE(qcaspi_info);
130
131 void
132 qcaspi_init_device_debugfs(struct qcaspi *qca)
133 {
134 qca->device_root = debugfs_create_dir(dev_name(&qca->net_dev->dev),
135 NULL);
136
137 debugfs_create_file("info", S_IFREG | 0444, qca->device_root, qca,
138 &qcaspi_info_fops);
139 }
140
141 void
142 qcaspi_remove_device_debugfs(struct qcaspi *qca)
143 {
144 debugfs_remove_recursive(qca->device_root);
145 }
146
147 #else
148
149 void
150 qcaspi_init_device_debugfs(struct qcaspi *qca)
151 {
152 }
153
154 void
155 qcaspi_remove_device_debugfs(struct qcaspi *qca)
156 {
157 }
158
159 #endif
160
161 static void
162 qcaspi_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *p)
163 {
164 struct qcaspi *qca = netdev_priv(dev);
165
166 strlcpy(p->driver, QCASPI_DRV_NAME, sizeof(p->driver));
167 strlcpy(p->version, QCASPI_DRV_VERSION, sizeof(p->version));
168 strlcpy(p->fw_version, "QCA7000", sizeof(p->fw_version));
169 strlcpy(p->bus_info, dev_name(&qca->spi_dev->dev),
170 sizeof(p->bus_info));
171 }
172
173 static int
174 qcaspi_get_link_ksettings(struct net_device *dev,
175 struct ethtool_link_ksettings *cmd)
176 {
177 ethtool_link_ksettings_zero_link_mode(cmd, supported);
178 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
179
180 cmd->base.speed = SPEED_10;
181 cmd->base.duplex = DUPLEX_HALF;
182 cmd->base.port = PORT_OTHER;
183 cmd->base.autoneg = AUTONEG_DISABLE;
184
185 return 0;
186 }
187
188 static void
189 qcaspi_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *data)
190 {
191 struct qcaspi *qca = netdev_priv(dev);
192 struct qcaspi_stats *st = &qca->stats;
193
194 memcpy(data, st, ARRAY_SIZE(qcaspi_gstrings_stats) * sizeof(u64));
195 }
196
197 static void
198 qcaspi_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
199 {
200 switch (stringset) {
201 case ETH_SS_STATS:
202 memcpy(buf, &qcaspi_gstrings_stats,
203 sizeof(qcaspi_gstrings_stats));
204 break;
205 default:
206 WARN_ON(1);
207 break;
208 }
209 }
210
211 static int
212 qcaspi_get_sset_count(struct net_device *dev, int sset)
213 {
214 switch (sset) {
215 case ETH_SS_STATS:
216 return ARRAY_SIZE(qcaspi_gstrings_stats);
217 default:
218 return -EINVAL;
219 }
220 }
221
222 static int
223 qcaspi_get_regs_len(struct net_device *dev)
224 {
225 return sizeof(u32) * QCASPI_MAX_REGS;
226 }
227
228 static void
229 qcaspi_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
230 {
231 struct qcaspi *qca = netdev_priv(dev);
232 u32 *regs_buff = p;
233 unsigned int i;
234
235 regs->version = 1;
236 memset(regs_buff, 0, sizeof(u32) * QCASPI_MAX_REGS);
237
238 for (i = 0; i < ARRAY_SIZE(qcaspi_spi_regs); i++) {
239 u16 offset, value;
240
241 qcaspi_read_register(qca, qcaspi_spi_regs[i], &value);
242 offset = qcaspi_spi_regs[i] >> 8;
243 regs_buff[offset] = value;
244 }
245 }
246
247 static void
248 qcaspi_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring)
249 {
250 struct qcaspi *qca = netdev_priv(dev);
251
252 ring->rx_max_pending = 4;
253 ring->tx_max_pending = TX_RING_MAX_LEN;
254 ring->rx_pending = 4;
255 ring->tx_pending = qca->txr.count;
256 }
257
258 static int
259 qcaspi_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ring)
260 {
261 const struct net_device_ops *ops = dev->netdev_ops;
262 struct qcaspi *qca = netdev_priv(dev);
263
264 if ((ring->rx_pending) ||
265 (ring->rx_mini_pending) ||
266 (ring->rx_jumbo_pending))
267 return -EINVAL;
268
269 if (netif_running(dev))
270 ops->ndo_stop(dev);
271
272 qca->txr.count = max_t(u32, ring->tx_pending, TX_RING_MIN_LEN);
273 qca->txr.count = min_t(u16, qca->txr.count, TX_RING_MAX_LEN);
274
275 if (netif_running(dev))
276 ops->ndo_open(dev);
277
278 return 0;
279 }
280
281 static const struct ethtool_ops qcaspi_ethtool_ops = {
282 .get_drvinfo = qcaspi_get_drvinfo,
283 .get_link = ethtool_op_get_link,
284 .get_ethtool_stats = qcaspi_get_ethtool_stats,
285 .get_strings = qcaspi_get_strings,
286 .get_sset_count = qcaspi_get_sset_count,
287 .get_regs_len = qcaspi_get_regs_len,
288 .get_regs = qcaspi_get_regs,
289 .get_ringparam = qcaspi_get_ringparam,
290 .set_ringparam = qcaspi_set_ringparam,
291 .get_link_ksettings = qcaspi_get_link_ksettings,
292 };
293
294 void qcaspi_set_ethtool_ops(struct net_device *dev)
295 {
296 dev->ethtool_ops = &qcaspi_ethtool_ops;
297 }