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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / drivers / net / ethernet / stmicro / stmmac / stmmac_ethtool.c
blob406404f6e32193d5d7d1f5b06433a9bcb4d38ea0
1 /*******************************************************************************
2 STMMAC Ethtool support
3
4 Copyright (C) 2007-2009 STMicroelectronics Ltd
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
23 *******************************************************************************/
24
25 #include <linux/etherdevice.h>
26 #include <linux/ethtool.h>
27 #include <linux/interrupt.h>
28 #include <linux/mii.h>
29 #include <linux/phy.h>
30 #include <asm/io.h>
31
32 #include "stmmac.h"
33 #include "dwmac_dma.h"
34
35 #define REG_SPACE_SIZE 0x1054
36 #define MAC100_ETHTOOL_NAME "st_mac100"
37 #define GMAC_ETHTOOL_NAME "st_gmac"
38
39 struct stmmac_stats {
40 char stat_string[ETH_GSTRING_LEN];
41 int sizeof_stat;
42 int stat_offset;
43 };
44
45 #define STMMAC_STAT(m) \
46 { #m, FIELD_SIZEOF(struct stmmac_extra_stats, m), \
47 offsetof(struct stmmac_priv, xstats.m)}
48
49 static const struct stmmac_stats stmmac_gstrings_stats[] = {
50 STMMAC_STAT(tx_underflow),
51 STMMAC_STAT(tx_carrier),
52 STMMAC_STAT(tx_losscarrier),
53 STMMAC_STAT(tx_heartbeat),
54 STMMAC_STAT(tx_deferred),
55 STMMAC_STAT(tx_vlan),
56 STMMAC_STAT(rx_vlan),
57 STMMAC_STAT(tx_jabber),
58 STMMAC_STAT(tx_frame_flushed),
59 STMMAC_STAT(tx_payload_error),
60 STMMAC_STAT(tx_ip_header_error),
61 STMMAC_STAT(rx_desc),
62 STMMAC_STAT(rx_partial),
63 STMMAC_STAT(rx_runt),
64 STMMAC_STAT(rx_toolong),
65 STMMAC_STAT(rx_collision),
66 STMMAC_STAT(rx_crc),
67 STMMAC_STAT(rx_length),
68 STMMAC_STAT(rx_mii),
69 STMMAC_STAT(rx_multicast),
70 STMMAC_STAT(rx_gmac_overflow),
71 STMMAC_STAT(rx_watchdog),
72 STMMAC_STAT(da_rx_filter_fail),
73 STMMAC_STAT(sa_rx_filter_fail),
74 STMMAC_STAT(rx_missed_cntr),
75 STMMAC_STAT(rx_overflow_cntr),
76 STMMAC_STAT(tx_undeflow_irq),
77 STMMAC_STAT(tx_process_stopped_irq),
78 STMMAC_STAT(tx_jabber_irq),
79 STMMAC_STAT(rx_overflow_irq),
80 STMMAC_STAT(rx_buf_unav_irq),
81 STMMAC_STAT(rx_process_stopped_irq),
82 STMMAC_STAT(rx_watchdog_irq),
83 STMMAC_STAT(tx_early_irq),
84 STMMAC_STAT(fatal_bus_error_irq),
85 STMMAC_STAT(threshold),
86 STMMAC_STAT(tx_pkt_n),
87 STMMAC_STAT(rx_pkt_n),
88 STMMAC_STAT(poll_n),
89 STMMAC_STAT(sched_timer_n),
90 STMMAC_STAT(normal_irq_n),
91 };
92 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
93
94 /* HW MAC Management counters (if supported) */
95 #define STMMAC_MMC_STAT(m) \
96 { #m, FIELD_SIZEOF(struct stmmac_counters, m), \
97 offsetof(struct stmmac_priv, mmc.m)}
98
99 static const struct stmmac_stats stmmac_mmc[] = {
100 STMMAC_MMC_STAT(mmc_tx_octetcount_gb),
101 STMMAC_MMC_STAT(mmc_tx_framecount_gb),
102 STMMAC_MMC_STAT(mmc_tx_broadcastframe_g),
103 STMMAC_MMC_STAT(mmc_tx_multicastframe_g),
104 STMMAC_MMC_STAT(mmc_tx_64_octets_gb),
105 STMMAC_MMC_STAT(mmc_tx_65_to_127_octets_gb),
106 STMMAC_MMC_STAT(mmc_tx_128_to_255_octets_gb),
107 STMMAC_MMC_STAT(mmc_tx_256_to_511_octets_gb),
108 STMMAC_MMC_STAT(mmc_tx_512_to_1023_octets_gb),
109 STMMAC_MMC_STAT(mmc_tx_1024_to_max_octets_gb),
110 STMMAC_MMC_STAT(mmc_tx_unicast_gb),
111 STMMAC_MMC_STAT(mmc_tx_multicast_gb),
112 STMMAC_MMC_STAT(mmc_tx_broadcast_gb),
113 STMMAC_MMC_STAT(mmc_tx_underflow_error),
114 STMMAC_MMC_STAT(mmc_tx_singlecol_g),
115 STMMAC_MMC_STAT(mmc_tx_multicol_g),
116 STMMAC_MMC_STAT(mmc_tx_deferred),
117 STMMAC_MMC_STAT(mmc_tx_latecol),
118 STMMAC_MMC_STAT(mmc_tx_exesscol),
119 STMMAC_MMC_STAT(mmc_tx_carrier_error),
120 STMMAC_MMC_STAT(mmc_tx_octetcount_g),
121 STMMAC_MMC_STAT(mmc_tx_framecount_g),
122 STMMAC_MMC_STAT(mmc_tx_excessdef),
123 STMMAC_MMC_STAT(mmc_tx_pause_frame),
124 STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
125 STMMAC_MMC_STAT(mmc_rx_framecount_gb),
126 STMMAC_MMC_STAT(mmc_rx_octetcount_gb),
127 STMMAC_MMC_STAT(mmc_rx_octetcount_g),
128 STMMAC_MMC_STAT(mmc_rx_broadcastframe_g),
129 STMMAC_MMC_STAT(mmc_rx_multicastframe_g),
130 STMMAC_MMC_STAT(mmc_rx_crc_errror),
131 STMMAC_MMC_STAT(mmc_rx_align_error),
132 STMMAC_MMC_STAT(mmc_rx_run_error),
133 STMMAC_MMC_STAT(mmc_rx_jabber_error),
134 STMMAC_MMC_STAT(mmc_rx_undersize_g),
135 STMMAC_MMC_STAT(mmc_rx_oversize_g),
136 STMMAC_MMC_STAT(mmc_rx_64_octets_gb),
137 STMMAC_MMC_STAT(mmc_rx_65_to_127_octets_gb),
138 STMMAC_MMC_STAT(mmc_rx_128_to_255_octets_gb),
139 STMMAC_MMC_STAT(mmc_rx_256_to_511_octets_gb),
140 STMMAC_MMC_STAT(mmc_rx_512_to_1023_octets_gb),
141 STMMAC_MMC_STAT(mmc_rx_1024_to_max_octets_gb),
142 STMMAC_MMC_STAT(mmc_rx_unicast_g),
143 STMMAC_MMC_STAT(mmc_rx_length_error),
144 STMMAC_MMC_STAT(mmc_rx_autofrangetype),
145 STMMAC_MMC_STAT(mmc_rx_pause_frames),
146 STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
147 STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
148 STMMAC_MMC_STAT(mmc_rx_watchdog_error),
149 STMMAC_MMC_STAT(mmc_rx_ipc_intr_mask),
150 STMMAC_MMC_STAT(mmc_rx_ipc_intr),
151 STMMAC_MMC_STAT(mmc_rx_ipv4_gd),
152 STMMAC_MMC_STAT(mmc_rx_ipv4_hderr),
153 STMMAC_MMC_STAT(mmc_rx_ipv4_nopay),
154 STMMAC_MMC_STAT(mmc_rx_ipv4_frag),
155 STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl),
156 STMMAC_MMC_STAT(mmc_rx_ipv4_gd_octets),
157 STMMAC_MMC_STAT(mmc_rx_ipv4_hderr_octets),
158 STMMAC_MMC_STAT(mmc_rx_ipv4_nopay_octets),
159 STMMAC_MMC_STAT(mmc_rx_ipv4_frag_octets),
160 STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl_octets),
161 STMMAC_MMC_STAT(mmc_rx_ipv6_gd_octets),
162 STMMAC_MMC_STAT(mmc_rx_ipv6_hderr_octets),
163 STMMAC_MMC_STAT(mmc_rx_ipv6_nopay_octets),
164 STMMAC_MMC_STAT(mmc_rx_ipv6_gd),
165 STMMAC_MMC_STAT(mmc_rx_ipv6_hderr),
166 STMMAC_MMC_STAT(mmc_rx_ipv6_nopay),
167 STMMAC_MMC_STAT(mmc_rx_udp_gd),
168 STMMAC_MMC_STAT(mmc_rx_udp_err),
169 STMMAC_MMC_STAT(mmc_rx_tcp_gd),
170 STMMAC_MMC_STAT(mmc_rx_tcp_err),
171 STMMAC_MMC_STAT(mmc_rx_icmp_gd),
172 STMMAC_MMC_STAT(mmc_rx_icmp_err),
173 STMMAC_MMC_STAT(mmc_rx_udp_gd_octets),
174 STMMAC_MMC_STAT(mmc_rx_udp_err_octets),
175 STMMAC_MMC_STAT(mmc_rx_tcp_gd_octets),
176 STMMAC_MMC_STAT(mmc_rx_tcp_err_octets),
177 STMMAC_MMC_STAT(mmc_rx_icmp_gd_octets),
178 STMMAC_MMC_STAT(mmc_rx_icmp_err_octets),
179 };
180 #define STMMAC_MMC_STATS_LEN ARRAY_SIZE(stmmac_mmc)
181
182 static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
183 struct ethtool_drvinfo *info)
184 {
185 struct stmmac_priv *priv = netdev_priv(dev);
186
187 if (priv->plat->has_gmac)
188 strcpy(info->driver, GMAC_ETHTOOL_NAME);
189 else
190 strcpy(info->driver, MAC100_ETHTOOL_NAME);
191
192 strcpy(info->version, DRV_MODULE_VERSION);
193 info->fw_version[0] = '\0';
194 }
195
196 static int stmmac_ethtool_getsettings(struct net_device *dev,
197 struct ethtool_cmd *cmd)
198 {
199 struct stmmac_priv *priv = netdev_priv(dev);
200 struct phy_device *phy = priv->phydev;
201 int rc;
202 if (phy == NULL) {
203 pr_err("%s: %s: PHY is not registered\n",
204 __func__, dev->name);
205 return -ENODEV;
206 }
207 if (!netif_running(dev)) {
208 pr_err("%s: interface is disabled: we cannot track "
209 "link speed / duplex setting\n", dev->name);
210 return -EBUSY;
211 }
212 cmd->transceiver = XCVR_INTERNAL;
213 spin_lock_irq(&priv->lock);
214 rc = phy_ethtool_gset(phy, cmd);
215 spin_unlock_irq(&priv->lock);
216 return rc;
217 }
218
219 static int stmmac_ethtool_setsettings(struct net_device *dev,
220 struct ethtool_cmd *cmd)
221 {
222 struct stmmac_priv *priv = netdev_priv(dev);
223 struct phy_device *phy = priv->phydev;
224 int rc;
225
226 spin_lock(&priv->lock);
227 rc = phy_ethtool_sset(phy, cmd);
228 spin_unlock(&priv->lock);
229
230 return rc;
231 }
232
233 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
234 {
235 struct stmmac_priv *priv = netdev_priv(dev);
236 return priv->msg_enable;
237 }
238
239 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
240 {
241 struct stmmac_priv *priv = netdev_priv(dev);
242 priv->msg_enable = level;
243
244 }
245
246 static int stmmac_check_if_running(struct net_device *dev)
247 {
248 if (!netif_running(dev))
249 return -EBUSY;
250 return 0;
251 }
252
253 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
254 {
255 return REG_SPACE_SIZE;
256 }
257
258 static void stmmac_ethtool_gregs(struct net_device *dev,
259 struct ethtool_regs *regs, void *space)
260 {
261 int i;
262 u32 *reg_space = (u32 *) space;
263
264 struct stmmac_priv *priv = netdev_priv(dev);
265
266 memset(reg_space, 0x0, REG_SPACE_SIZE);
267
268 if (!priv->plat->has_gmac) {
269 /* MAC registers */
270 for (i = 0; i < 12; i++)
271 reg_space[i] = readl(priv->ioaddr + (i * 4));
272 /* DMA registers */
273 for (i = 0; i < 9; i++)
274 reg_space[i + 12] =
275 readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
276 reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
277 reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
278 } else {
279 /* MAC registers */
280 for (i = 0; i < 55; i++)
281 reg_space[i] = readl(priv->ioaddr + (i * 4));
282 /* DMA registers */
283 for (i = 0; i < 22; i++)
284 reg_space[i + 55] =
285 readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
286 }
287 }
288
289 static void
290 stmmac_get_pauseparam(struct net_device *netdev,
291 struct ethtool_pauseparam *pause)
292 {
293 struct stmmac_priv *priv = netdev_priv(netdev);
294
295 spin_lock(&priv->lock);
296
297 pause->rx_pause = 0;
298 pause->tx_pause = 0;
299 pause->autoneg = priv->phydev->autoneg;
300
301 if (priv->flow_ctrl & FLOW_RX)
302 pause->rx_pause = 1;
303 if (priv->flow_ctrl & FLOW_TX)
304 pause->tx_pause = 1;
305
306 spin_unlock(&priv->lock);
307 }
308
309 static int
310 stmmac_set_pauseparam(struct net_device *netdev,
311 struct ethtool_pauseparam *pause)
312 {
313 struct stmmac_priv *priv = netdev_priv(netdev);
314 struct phy_device *phy = priv->phydev;
315 int new_pause = FLOW_OFF;
316 int ret = 0;
317
318 spin_lock(&priv->lock);
319
320 if (pause->rx_pause)
321 new_pause |= FLOW_RX;
322 if (pause->tx_pause)
323 new_pause |= FLOW_TX;
324
325 priv->flow_ctrl = new_pause;
326 phy->autoneg = pause->autoneg;
327
328 if (phy->autoneg) {
329 if (netif_running(netdev))
330 ret = phy_start_aneg(phy);
331 } else
332 priv->hw->mac->flow_ctrl(priv->ioaddr, phy->duplex,
333 priv->flow_ctrl, priv->pause);
334 spin_unlock(&priv->lock);
335 return ret;
336 }
337
338 static void stmmac_get_ethtool_stats(struct net_device *dev,
339 struct ethtool_stats *dummy, u64 *data)
340 {
341 struct stmmac_priv *priv = netdev_priv(dev);
342 int i, j = 0;
343
344 /* Update the DMA HW counters for dwmac10/100 */
345 if (!priv->plat->has_gmac)
346 priv->hw->dma->dma_diagnostic_fr(&dev->stats,
347 (void *) &priv->xstats,
348 priv->ioaddr);
349 else {
350 /* If supported, for new GMAC chips expose the MMC counters */
351 if (priv->dma_cap.rmon) {
352 dwmac_mmc_read(priv->ioaddr, &priv->mmc);
353
354 for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
355 char *p;
356 p = (char *)priv + stmmac_mmc[i].stat_offset;
357
358 data[j++] = (stmmac_mmc[i].sizeof_stat ==
359 sizeof(u64)) ? (*(u64 *)p) :
360 (*(u32 *)p);
361 }
362 }
363 }
364 for (i = 0; i < STMMAC_STATS_LEN; i++) {
365 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
366 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
367 sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
368 }
369 }
370
371 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
372 {
373 struct stmmac_priv *priv = netdev_priv(netdev);
374 int len;
375
376 switch (sset) {
377 case ETH_SS_STATS:
378 len = STMMAC_STATS_LEN;
379
380 if (priv->dma_cap.rmon)
381 len += STMMAC_MMC_STATS_LEN;
382
383 return len;
384 default:
385 return -EOPNOTSUPP;
386 }
387 }
388
389 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
390 {
391 int i;
392 u8 *p = data;
393 struct stmmac_priv *priv = netdev_priv(dev);
394
395 switch (stringset) {
396 case ETH_SS_STATS:
397 if (priv->dma_cap.rmon)
398 for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
399 memcpy(p, stmmac_mmc[i].stat_string,
400 ETH_GSTRING_LEN);
401 p += ETH_GSTRING_LEN;
402 }
403 for (i = 0; i < STMMAC_STATS_LEN; i++) {
404 memcpy(p, stmmac_gstrings_stats[i].stat_string,
405 ETH_GSTRING_LEN);
406 p += ETH_GSTRING_LEN;
407 }
408 break;
409 default:
410 WARN_ON(1);
411 break;
412 }
413 }
414
415 /* Currently only support WOL through Magic packet. */
416 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
417 {
418 struct stmmac_priv *priv = netdev_priv(dev);
419
420 spin_lock_irq(&priv->lock);
421 if (device_can_wakeup(priv->device)) {
422 wol->supported = WAKE_MAGIC | WAKE_UCAST;
423 wol->wolopts = priv->wolopts;
424 }
425 spin_unlock_irq(&priv->lock);
426 }
427
428 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
429 {
430 struct stmmac_priv *priv = netdev_priv(dev);
431 u32 support = WAKE_MAGIC | WAKE_UCAST;
432
433 if (!device_can_wakeup(priv->device))
434 return -EINVAL;
435
436 if (wol->wolopts & ~support)
437 return -EINVAL;
438
439 if (wol->wolopts) {
440 pr_info("stmmac: wakeup enable\n");
441 device_set_wakeup_enable(priv->device, 1);
442 enable_irq_wake(priv->wol_irq);
443 } else {
444 device_set_wakeup_enable(priv->device, 0);
445 disable_irq_wake(priv->wol_irq);
446 }
447
448 spin_lock_irq(&priv->lock);
449 priv->wolopts = wol->wolopts;
450 spin_unlock_irq(&priv->lock);
451
452 return 0;
453 }
454
455 static struct ethtool_ops stmmac_ethtool_ops = {
456 .begin = stmmac_check_if_running,
457 .get_drvinfo = stmmac_ethtool_getdrvinfo,
458 .get_settings = stmmac_ethtool_getsettings,
459 .set_settings = stmmac_ethtool_setsettings,
460 .get_msglevel = stmmac_ethtool_getmsglevel,
461 .set_msglevel = stmmac_ethtool_setmsglevel,
462 .get_regs = stmmac_ethtool_gregs,
463 .get_regs_len = stmmac_ethtool_get_regs_len,
464 .get_link = ethtool_op_get_link,
465 .get_pauseparam = stmmac_get_pauseparam,
466 .set_pauseparam = stmmac_set_pauseparam,
467 .get_ethtool_stats = stmmac_get_ethtool_stats,
468 .get_strings = stmmac_get_strings,
469 .get_wol = stmmac_get_wol,
470 .set_wol = stmmac_set_wol,
471 .get_sset_count = stmmac_get_sset_count,
472 };
473
474 void stmmac_set_ethtool_ops(struct net_device *netdev)
475 {
476 SET_ETHTOOL_OPS(netdev, &stmmac_ethtool_ops);
477 }
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