stmmac: update normal descriptor structure (v2)
[linux-2.6.git] / drivers / net / ethernet / stmicro / stmmac / stmmac_ethtool.c
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(vlan_tag),
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(sa_filter_fail),
63         STMMAC_STAT(overflow_error),
64         STMMAC_STAT(ipc_csum_error),
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 }