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Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -07001/*******************************************************************************
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/mii.h>
28#include <linux/phy.h>
29
30#include "stmmac.h"
Giuseppe CAVALLAROaec7ff22010-01-06 23:07:18 +000031#include "dwmac_dma.h"
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -070032
33#define REG_SPACE_SIZE 0x1054
34#define MAC100_ETHTOOL_NAME "st_mac100"
35#define GMAC_ETHTOOL_NAME "st_gmac"
36
37struct stmmac_stats {
38 char stat_string[ETH_GSTRING_LEN];
39 int sizeof_stat;
40 int stat_offset;
41};
42
43#define STMMAC_STAT(m) \
44 { #m, FIELD_SIZEOF(struct stmmac_extra_stats, m), \
45 offsetof(struct stmmac_priv, xstats.m)}
46
47static const struct stmmac_stats stmmac_gstrings_stats[] = {
48 STMMAC_STAT(tx_underflow),
49 STMMAC_STAT(tx_carrier),
50 STMMAC_STAT(tx_losscarrier),
51 STMMAC_STAT(tx_heartbeat),
52 STMMAC_STAT(tx_deferred),
53 STMMAC_STAT(tx_vlan),
54 STMMAC_STAT(rx_vlan),
55 STMMAC_STAT(tx_jabber),
56 STMMAC_STAT(tx_frame_flushed),
57 STMMAC_STAT(tx_payload_error),
58 STMMAC_STAT(tx_ip_header_error),
59 STMMAC_STAT(rx_desc),
60 STMMAC_STAT(rx_partial),
61 STMMAC_STAT(rx_runt),
62 STMMAC_STAT(rx_toolong),
63 STMMAC_STAT(rx_collision),
64 STMMAC_STAT(rx_crc),
Giuseppe Cavallaro1b924032010-02-04 09:33:21 -080065 STMMAC_STAT(rx_length),
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -070066 STMMAC_STAT(rx_mii),
67 STMMAC_STAT(rx_multicast),
68 STMMAC_STAT(rx_gmac_overflow),
69 STMMAC_STAT(rx_watchdog),
70 STMMAC_STAT(da_rx_filter_fail),
71 STMMAC_STAT(sa_rx_filter_fail),
72 STMMAC_STAT(rx_missed_cntr),
73 STMMAC_STAT(rx_overflow_cntr),
74 STMMAC_STAT(tx_undeflow_irq),
75 STMMAC_STAT(tx_process_stopped_irq),
76 STMMAC_STAT(tx_jabber_irq),
77 STMMAC_STAT(rx_overflow_irq),
78 STMMAC_STAT(rx_buf_unav_irq),
79 STMMAC_STAT(rx_process_stopped_irq),
80 STMMAC_STAT(rx_watchdog_irq),
81 STMMAC_STAT(tx_early_irq),
82 STMMAC_STAT(fatal_bus_error_irq),
83 STMMAC_STAT(threshold),
84 STMMAC_STAT(tx_pkt_n),
85 STMMAC_STAT(rx_pkt_n),
86 STMMAC_STAT(poll_n),
87 STMMAC_STAT(sched_timer_n),
88 STMMAC_STAT(normal_irq_n),
89};
90#define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
91
92void stmmac_ethtool_getdrvinfo(struct net_device *dev,
93 struct ethtool_drvinfo *info)
94{
95 struct stmmac_priv *priv = netdev_priv(dev);
96
97 if (!priv->is_gmac)
98 strcpy(info->driver, MAC100_ETHTOOL_NAME);
99 else
100 strcpy(info->driver, GMAC_ETHTOOL_NAME);
101
102 strcpy(info->version, DRV_MODULE_VERSION);
103 info->fw_version[0] = '\0';
104 info->n_stats = STMMAC_STATS_LEN;
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700105}
106
107int stmmac_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
108{
109 struct stmmac_priv *priv = netdev_priv(dev);
110 struct phy_device *phy = priv->phydev;
111 int rc;
112 if (phy == NULL) {
113 pr_err("%s: %s: PHY is not registered\n",
114 __func__, dev->name);
115 return -ENODEV;
116 }
117 if (!netif_running(dev)) {
118 pr_err("%s: interface is disabled: we cannot track "
119 "link speed / duplex setting\n", dev->name);
120 return -EBUSY;
121 }
122 cmd->transceiver = XCVR_INTERNAL;
123 spin_lock_irq(&priv->lock);
124 rc = phy_ethtool_gset(phy, cmd);
125 spin_unlock_irq(&priv->lock);
126 return rc;
127}
128
129int stmmac_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
130{
131 struct stmmac_priv *priv = netdev_priv(dev);
132 struct phy_device *phy = priv->phydev;
133 int rc;
134
135 spin_lock(&priv->lock);
136 rc = phy_ethtool_sset(phy, cmd);
137 spin_unlock(&priv->lock);
138
139 return rc;
140}
141
142u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
143{
144 struct stmmac_priv *priv = netdev_priv(dev);
145 return priv->msg_enable;
146}
147
148void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
149{
150 struct stmmac_priv *priv = netdev_priv(dev);
151 priv->msg_enable = level;
152
153}
154
155int stmmac_check_if_running(struct net_device *dev)
156{
157 if (!netif_running(dev))
158 return -EBUSY;
159 return 0;
160}
161
162int stmmac_ethtool_get_regs_len(struct net_device *dev)
163{
164 return REG_SPACE_SIZE;
165}
166
167void stmmac_ethtool_gregs(struct net_device *dev,
168 struct ethtool_regs *regs, void *space)
169{
170 int i;
171 u32 *reg_space = (u32 *) space;
172
173 struct stmmac_priv *priv = netdev_priv(dev);
174
175 memset(reg_space, 0x0, REG_SPACE_SIZE);
176
177 if (!priv->is_gmac) {
178 /* MAC registers */
179 for (i = 0; i < 12; i++)
180 reg_space[i] = readl(dev->base_addr + (i * 4));
181 /* DMA registers */
182 for (i = 0; i < 9; i++)
183 reg_space[i + 12] =
184 readl(dev->base_addr + (DMA_BUS_MODE + (i * 4)));
185 reg_space[22] = readl(dev->base_addr + DMA_CUR_TX_BUF_ADDR);
186 reg_space[23] = readl(dev->base_addr + DMA_CUR_RX_BUF_ADDR);
187 } else {
188 /* MAC registers */
189 for (i = 0; i < 55; i++)
190 reg_space[i] = readl(dev->base_addr + (i * 4));
191 /* DMA registers */
192 for (i = 0; i < 22; i++)
193 reg_space[i + 55] =
194 readl(dev->base_addr + (DMA_BUS_MODE + (i * 4)));
195 }
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700196}
197
198int stmmac_ethtool_set_tx_csum(struct net_device *netdev, u32 data)
199{
200 if (data)
201 netdev->features |= NETIF_F_HW_CSUM;
202 else
203 netdev->features &= ~NETIF_F_HW_CSUM;
204
205 return 0;
206}
207
208u32 stmmac_ethtool_get_rx_csum(struct net_device *dev)
209{
210 struct stmmac_priv *priv = netdev_priv(dev);
211
212 return priv->rx_csum;
213}
214
215static void
216stmmac_get_pauseparam(struct net_device *netdev,
217 struct ethtool_pauseparam *pause)
218{
219 struct stmmac_priv *priv = netdev_priv(netdev);
220
221 spin_lock(&priv->lock);
222
223 pause->rx_pause = 0;
224 pause->tx_pause = 0;
225 pause->autoneg = priv->phydev->autoneg;
226
227 if (priv->flow_ctrl & FLOW_RX)
228 pause->rx_pause = 1;
229 if (priv->flow_ctrl & FLOW_TX)
230 pause->tx_pause = 1;
231
232 spin_unlock(&priv->lock);
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700233}
234
235static int
236stmmac_set_pauseparam(struct net_device *netdev,
237 struct ethtool_pauseparam *pause)
238{
239 struct stmmac_priv *priv = netdev_priv(netdev);
240 struct phy_device *phy = priv->phydev;
241 int new_pause = FLOW_OFF;
242 int ret = 0;
243
244 spin_lock(&priv->lock);
245
246 if (pause->rx_pause)
247 new_pause |= FLOW_RX;
248 if (pause->tx_pause)
249 new_pause |= FLOW_TX;
250
251 priv->flow_ctrl = new_pause;
252
253 if (phy->autoneg) {
254 if (netif_running(netdev)) {
255 struct ethtool_cmd cmd;
256 /* auto-negotiation automatically restarted */
257 cmd.cmd = ETHTOOL_NWAY_RST;
258 cmd.supported = phy->supported;
259 cmd.advertising = phy->advertising;
260 cmd.autoneg = phy->autoneg;
261 cmd.speed = phy->speed;
262 cmd.duplex = phy->duplex;
263 cmd.phy_address = phy->addr;
264 ret = phy_ethtool_sset(phy, &cmd);
265 }
266 } else {
267 unsigned long ioaddr = netdev->base_addr;
Giuseppe CAVALLAROdb98a0b2010-01-06 23:07:17 +0000268 priv->hw->mac->flow_ctrl(ioaddr, phy->duplex,
269 priv->flow_ctrl, priv->pause);
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700270 }
271 spin_unlock(&priv->lock);
272 return ret;
273}
274
275static void stmmac_get_ethtool_stats(struct net_device *dev,
276 struct ethtool_stats *dummy, u64 *data)
277{
278 struct stmmac_priv *priv = netdev_priv(dev);
279 unsigned long ioaddr = dev->base_addr;
280 int i;
281
282 /* Update HW stats if supported */
Giuseppe CAVALLAROdb98a0b2010-01-06 23:07:17 +0000283 priv->hw->dma->dma_diagnostic_fr(&dev->stats, (void *) &priv->xstats,
284 ioaddr);
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700285
286 for (i = 0; i < STMMAC_STATS_LEN; i++) {
287 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
288 data[i] = (stmmac_gstrings_stats[i].sizeof_stat ==
289 sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
290 }
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700291}
292
293static int stmmac_get_sset_count(struct net_device *netdev, int sset)
294{
295 switch (sset) {
296 case ETH_SS_STATS:
297 return STMMAC_STATS_LEN;
298 default:
299 return -EOPNOTSUPP;
300 }
301}
302
303static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
304{
305 int i;
306 u8 *p = data;
307
308 switch (stringset) {
309 case ETH_SS_STATS:
310 for (i = 0; i < STMMAC_STATS_LEN; i++) {
311 memcpy(p, stmmac_gstrings_stats[i].stat_string,
312 ETH_GSTRING_LEN);
313 p += ETH_GSTRING_LEN;
314 }
315 break;
316 default:
317 WARN_ON(1);
318 break;
319 }
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700320}
321
322/* Currently only support WOL through Magic packet. */
323static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
324{
325 struct stmmac_priv *priv = netdev_priv(dev);
326
327 spin_lock_irq(&priv->lock);
328 if (priv->wolenabled == PMT_SUPPORTED) {
329 wol->supported = WAKE_MAGIC;
330 wol->wolopts = priv->wolopts;
331 }
332 spin_unlock_irq(&priv->lock);
333}
334
335static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
336{
337 struct stmmac_priv *priv = netdev_priv(dev);
338 u32 support = WAKE_MAGIC;
339
340 if (priv->wolenabled == PMT_NOT_SUPPORTED)
341 return -EINVAL;
342
343 if (wol->wolopts & ~support)
344 return -EINVAL;
345
346 if (wol->wolopts == 0)
347 device_set_wakeup_enable(priv->device, 0);
348 else
349 device_set_wakeup_enable(priv->device, 1);
350
351 spin_lock_irq(&priv->lock);
352 priv->wolopts = wol->wolopts;
353 spin_unlock_irq(&priv->lock);
354
355 return 0;
356}
357
358static struct ethtool_ops stmmac_ethtool_ops = {
359 .begin = stmmac_check_if_running,
360 .get_drvinfo = stmmac_ethtool_getdrvinfo,
361 .get_settings = stmmac_ethtool_getsettings,
362 .set_settings = stmmac_ethtool_setsettings,
363 .get_msglevel = stmmac_ethtool_getmsglevel,
364 .set_msglevel = stmmac_ethtool_setmsglevel,
365 .get_regs = stmmac_ethtool_gregs,
366 .get_regs_len = stmmac_ethtool_get_regs_len,
367 .get_link = ethtool_op_get_link,
368 .get_rx_csum = stmmac_ethtool_get_rx_csum,
369 .get_tx_csum = ethtool_op_get_tx_csum,
370 .set_tx_csum = stmmac_ethtool_set_tx_csum,
371 .get_sg = ethtool_op_get_sg,
372 .set_sg = ethtool_op_set_sg,
373 .get_pauseparam = stmmac_get_pauseparam,
374 .set_pauseparam = stmmac_set_pauseparam,
375 .get_ethtool_stats = stmmac_get_ethtool_stats,
376 .get_strings = stmmac_get_strings,
377 .get_wol = stmmac_get_wol,
378 .set_wol = stmmac_set_wol,
379 .get_sset_count = stmmac_get_sset_count,
380#ifdef NETIF_F_TSO
381 .get_tso = ethtool_op_get_tso,
382 .set_tso = ethtool_op_set_tso,
383#endif
384};
385
386void stmmac_set_ethtool_ops(struct net_device *netdev)
387{
388 SET_ETHTOOL_OPS(netdev, &stmmac_ethtool_ops);
389}