1 /*******************************************************************************
4 Copyright (C) 2007-2009 STMicroelectronics Ltd
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.
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
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.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
22 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
23 *******************************************************************************/
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>
33 #include "dwmac_dma.h"
35 #define REG_SPACE_SIZE 0x1054
36 #define MAC100_ETHTOOL_NAME "st_mac100"
37 #define GMAC_ETHTOOL_NAME "st_gmac"
40 char stat_string[ETH_GSTRING_LEN];
45 #define STMMAC_STAT(m) \
46 { #m, FIELD_SIZEOF(struct stmmac_extra_stats, m), \
47 offsetof(struct stmmac_priv, xstats.m)}
49 static const struct stmmac_stats stmmac_gstrings_stats[] = {
51 STMMAC_STAT(tx_underflow),
52 STMMAC_STAT(tx_carrier),
53 STMMAC_STAT(tx_losscarrier),
54 STMMAC_STAT(vlan_tag),
55 STMMAC_STAT(tx_deferred),
57 STMMAC_STAT(tx_jabber),
58 STMMAC_STAT(tx_frame_flushed),
59 STMMAC_STAT(tx_payload_error),
60 STMMAC_STAT(tx_ip_header_error),
63 STMMAC_STAT(sa_filter_fail),
64 STMMAC_STAT(overflow_error),
65 STMMAC_STAT(ipc_csum_error),
66 STMMAC_STAT(rx_collision),
68 STMMAC_STAT(dribbling_bit),
69 STMMAC_STAT(rx_length),
71 STMMAC_STAT(rx_multicast),
72 STMMAC_STAT(rx_gmac_overflow),
73 STMMAC_STAT(rx_watchdog),
74 STMMAC_STAT(da_rx_filter_fail),
75 STMMAC_STAT(sa_rx_filter_fail),
76 STMMAC_STAT(rx_missed_cntr),
77 STMMAC_STAT(rx_overflow_cntr),
79 /* Tx/Rx IRQ error info */
80 STMMAC_STAT(tx_undeflow_irq),
81 STMMAC_STAT(tx_process_stopped_irq),
82 STMMAC_STAT(tx_jabber_irq),
83 STMMAC_STAT(rx_overflow_irq),
84 STMMAC_STAT(rx_buf_unav_irq),
85 STMMAC_STAT(rx_process_stopped_irq),
86 STMMAC_STAT(rx_watchdog_irq),
87 STMMAC_STAT(tx_early_irq),
88 STMMAC_STAT(fatal_bus_error_irq),
89 /* Tx/Rx IRQ Events */
90 STMMAC_STAT(rx_early_irq),
91 STMMAC_STAT(threshold),
92 STMMAC_STAT(tx_pkt_n),
93 STMMAC_STAT(rx_pkt_n),
94 STMMAC_STAT(normal_irq_n),
95 STMMAC_STAT(rx_normal_irq_n),
96 STMMAC_STAT(napi_poll),
97 STMMAC_STAT(tx_normal_irq_n),
98 STMMAC_STAT(tx_clean),
99 STMMAC_STAT(tx_reset_ic_bit),
100 STMMAC_STAT(irq_receive_pmt_irq_n),
102 STMMAC_STAT(mmc_tx_irq_n),
103 STMMAC_STAT(mmc_rx_irq_n),
104 STMMAC_STAT(mmc_rx_csum_offload_irq_n),
106 STMMAC_STAT(irq_tx_path_in_lpi_mode_n),
107 STMMAC_STAT(irq_tx_path_exit_lpi_mode_n),
108 STMMAC_STAT(irq_rx_path_in_lpi_mode_n),
109 STMMAC_STAT(irq_rx_path_exit_lpi_mode_n),
110 STMMAC_STAT(phy_eee_wakeup_error_n),
112 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
114 /* HW MAC Management counters (if supported) */
115 #define STMMAC_MMC_STAT(m) \
116 { #m, FIELD_SIZEOF(struct stmmac_counters, m), \
117 offsetof(struct stmmac_priv, mmc.m)}
119 static const struct stmmac_stats stmmac_mmc[] = {
120 STMMAC_MMC_STAT(mmc_tx_octetcount_gb),
121 STMMAC_MMC_STAT(mmc_tx_framecount_gb),
122 STMMAC_MMC_STAT(mmc_tx_broadcastframe_g),
123 STMMAC_MMC_STAT(mmc_tx_multicastframe_g),
124 STMMAC_MMC_STAT(mmc_tx_64_octets_gb),
125 STMMAC_MMC_STAT(mmc_tx_65_to_127_octets_gb),
126 STMMAC_MMC_STAT(mmc_tx_128_to_255_octets_gb),
127 STMMAC_MMC_STAT(mmc_tx_256_to_511_octets_gb),
128 STMMAC_MMC_STAT(mmc_tx_512_to_1023_octets_gb),
129 STMMAC_MMC_STAT(mmc_tx_1024_to_max_octets_gb),
130 STMMAC_MMC_STAT(mmc_tx_unicast_gb),
131 STMMAC_MMC_STAT(mmc_tx_multicast_gb),
132 STMMAC_MMC_STAT(mmc_tx_broadcast_gb),
133 STMMAC_MMC_STAT(mmc_tx_underflow_error),
134 STMMAC_MMC_STAT(mmc_tx_singlecol_g),
135 STMMAC_MMC_STAT(mmc_tx_multicol_g),
136 STMMAC_MMC_STAT(mmc_tx_deferred),
137 STMMAC_MMC_STAT(mmc_tx_latecol),
138 STMMAC_MMC_STAT(mmc_tx_exesscol),
139 STMMAC_MMC_STAT(mmc_tx_carrier_error),
140 STMMAC_MMC_STAT(mmc_tx_octetcount_g),
141 STMMAC_MMC_STAT(mmc_tx_framecount_g),
142 STMMAC_MMC_STAT(mmc_tx_excessdef),
143 STMMAC_MMC_STAT(mmc_tx_pause_frame),
144 STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
145 STMMAC_MMC_STAT(mmc_rx_framecount_gb),
146 STMMAC_MMC_STAT(mmc_rx_octetcount_gb),
147 STMMAC_MMC_STAT(mmc_rx_octetcount_g),
148 STMMAC_MMC_STAT(mmc_rx_broadcastframe_g),
149 STMMAC_MMC_STAT(mmc_rx_multicastframe_g),
150 STMMAC_MMC_STAT(mmc_rx_crc_errror),
151 STMMAC_MMC_STAT(mmc_rx_align_error),
152 STMMAC_MMC_STAT(mmc_rx_run_error),
153 STMMAC_MMC_STAT(mmc_rx_jabber_error),
154 STMMAC_MMC_STAT(mmc_rx_undersize_g),
155 STMMAC_MMC_STAT(mmc_rx_oversize_g),
156 STMMAC_MMC_STAT(mmc_rx_64_octets_gb),
157 STMMAC_MMC_STAT(mmc_rx_65_to_127_octets_gb),
158 STMMAC_MMC_STAT(mmc_rx_128_to_255_octets_gb),
159 STMMAC_MMC_STAT(mmc_rx_256_to_511_octets_gb),
160 STMMAC_MMC_STAT(mmc_rx_512_to_1023_octets_gb),
161 STMMAC_MMC_STAT(mmc_rx_1024_to_max_octets_gb),
162 STMMAC_MMC_STAT(mmc_rx_unicast_g),
163 STMMAC_MMC_STAT(mmc_rx_length_error),
164 STMMAC_MMC_STAT(mmc_rx_autofrangetype),
165 STMMAC_MMC_STAT(mmc_rx_pause_frames),
166 STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
167 STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
168 STMMAC_MMC_STAT(mmc_rx_watchdog_error),
169 STMMAC_MMC_STAT(mmc_rx_ipc_intr_mask),
170 STMMAC_MMC_STAT(mmc_rx_ipc_intr),
171 STMMAC_MMC_STAT(mmc_rx_ipv4_gd),
172 STMMAC_MMC_STAT(mmc_rx_ipv4_hderr),
173 STMMAC_MMC_STAT(mmc_rx_ipv4_nopay),
174 STMMAC_MMC_STAT(mmc_rx_ipv4_frag),
175 STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl),
176 STMMAC_MMC_STAT(mmc_rx_ipv4_gd_octets),
177 STMMAC_MMC_STAT(mmc_rx_ipv4_hderr_octets),
178 STMMAC_MMC_STAT(mmc_rx_ipv4_nopay_octets),
179 STMMAC_MMC_STAT(mmc_rx_ipv4_frag_octets),
180 STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl_octets),
181 STMMAC_MMC_STAT(mmc_rx_ipv6_gd_octets),
182 STMMAC_MMC_STAT(mmc_rx_ipv6_hderr_octets),
183 STMMAC_MMC_STAT(mmc_rx_ipv6_nopay_octets),
184 STMMAC_MMC_STAT(mmc_rx_ipv6_gd),
185 STMMAC_MMC_STAT(mmc_rx_ipv6_hderr),
186 STMMAC_MMC_STAT(mmc_rx_ipv6_nopay),
187 STMMAC_MMC_STAT(mmc_rx_udp_gd),
188 STMMAC_MMC_STAT(mmc_rx_udp_err),
189 STMMAC_MMC_STAT(mmc_rx_tcp_gd),
190 STMMAC_MMC_STAT(mmc_rx_tcp_err),
191 STMMAC_MMC_STAT(mmc_rx_icmp_gd),
192 STMMAC_MMC_STAT(mmc_rx_icmp_err),
193 STMMAC_MMC_STAT(mmc_rx_udp_gd_octets),
194 STMMAC_MMC_STAT(mmc_rx_udp_err_octets),
195 STMMAC_MMC_STAT(mmc_rx_tcp_gd_octets),
196 STMMAC_MMC_STAT(mmc_rx_tcp_err_octets),
197 STMMAC_MMC_STAT(mmc_rx_icmp_gd_octets),
198 STMMAC_MMC_STAT(mmc_rx_icmp_err_octets),
200 #define STMMAC_MMC_STATS_LEN ARRAY_SIZE(stmmac_mmc)
202 static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
203 struct ethtool_drvinfo *info)
205 struct stmmac_priv *priv = netdev_priv(dev);
207 if (priv->plat->has_gmac)
208 strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
210 strlcpy(info->driver, MAC100_ETHTOOL_NAME,
211 sizeof(info->driver));
213 strcpy(info->version, DRV_MODULE_VERSION);
214 info->fw_version[0] = '\0';
217 static int stmmac_ethtool_getsettings(struct net_device *dev,
218 struct ethtool_cmd *cmd)
220 struct stmmac_priv *priv = netdev_priv(dev);
221 struct phy_device *phy = priv->phydev;
224 pr_err("%s: %s: PHY is not registered\n",
225 __func__, dev->name);
228 if (!netif_running(dev)) {
229 pr_err("%s: interface is disabled: we cannot track "
230 "link speed / duplex setting\n", dev->name);
233 cmd->transceiver = XCVR_INTERNAL;
234 spin_lock_irq(&priv->lock);
235 rc = phy_ethtool_gset(phy, cmd);
236 spin_unlock_irq(&priv->lock);
240 static int stmmac_ethtool_setsettings(struct net_device *dev,
241 struct ethtool_cmd *cmd)
243 struct stmmac_priv *priv = netdev_priv(dev);
244 struct phy_device *phy = priv->phydev;
247 spin_lock(&priv->lock);
248 rc = phy_ethtool_sset(phy, cmd);
249 spin_unlock(&priv->lock);
254 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
256 struct stmmac_priv *priv = netdev_priv(dev);
257 return priv->msg_enable;
260 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
262 struct stmmac_priv *priv = netdev_priv(dev);
263 priv->msg_enable = level;
267 static int stmmac_check_if_running(struct net_device *dev)
269 if (!netif_running(dev))
274 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
276 return REG_SPACE_SIZE;
279 static void stmmac_ethtool_gregs(struct net_device *dev,
280 struct ethtool_regs *regs, void *space)
283 u32 *reg_space = (u32 *) space;
285 struct stmmac_priv *priv = netdev_priv(dev);
287 memset(reg_space, 0x0, REG_SPACE_SIZE);
289 if (!priv->plat->has_gmac) {
291 for (i = 0; i < 12; i++)
292 reg_space[i] = readl(priv->ioaddr + (i * 4));
294 for (i = 0; i < 9; i++)
296 readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
297 reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
298 reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
301 for (i = 0; i < 55; i++)
302 reg_space[i] = readl(priv->ioaddr + (i * 4));
304 for (i = 0; i < 22; i++)
306 readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
311 stmmac_get_pauseparam(struct net_device *netdev,
312 struct ethtool_pauseparam *pause)
314 struct stmmac_priv *priv = netdev_priv(netdev);
316 spin_lock(&priv->lock);
320 pause->autoneg = priv->phydev->autoneg;
322 if (priv->flow_ctrl & FLOW_RX)
324 if (priv->flow_ctrl & FLOW_TX)
327 spin_unlock(&priv->lock);
331 stmmac_set_pauseparam(struct net_device *netdev,
332 struct ethtool_pauseparam *pause)
334 struct stmmac_priv *priv = netdev_priv(netdev);
335 struct phy_device *phy = priv->phydev;
336 int new_pause = FLOW_OFF;
339 spin_lock(&priv->lock);
342 new_pause |= FLOW_RX;
344 new_pause |= FLOW_TX;
346 priv->flow_ctrl = new_pause;
347 phy->autoneg = pause->autoneg;
350 if (netif_running(netdev))
351 ret = phy_start_aneg(phy);
353 priv->hw->mac->flow_ctrl(priv->ioaddr, phy->duplex,
354 priv->flow_ctrl, priv->pause);
355 spin_unlock(&priv->lock);
359 static void stmmac_get_ethtool_stats(struct net_device *dev,
360 struct ethtool_stats *dummy, u64 *data)
362 struct stmmac_priv *priv = netdev_priv(dev);
365 /* Update the DMA HW counters for dwmac10/100 */
366 if (!priv->plat->has_gmac)
367 priv->hw->dma->dma_diagnostic_fr(&dev->stats,
368 (void *) &priv->xstats,
371 /* If supported, for new GMAC chips expose the MMC counters */
372 if (priv->dma_cap.rmon) {
373 dwmac_mmc_read(priv->ioaddr, &priv->mmc);
375 for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
377 p = (char *)priv + stmmac_mmc[i].stat_offset;
379 data[j++] = (stmmac_mmc[i].sizeof_stat ==
380 sizeof(u64)) ? (*(u64 *)p) :
384 if (priv->eee_enabled) {
385 int val = phy_get_eee_err(priv->phydev);
387 priv->xstats.phy_eee_wakeup_error_n = val;
390 for (i = 0; i < STMMAC_STATS_LEN; i++) {
391 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
392 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
393 sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
397 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
399 struct stmmac_priv *priv = netdev_priv(netdev);
404 len = STMMAC_STATS_LEN;
406 if (priv->dma_cap.rmon)
407 len += STMMAC_MMC_STATS_LEN;
415 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
419 struct stmmac_priv *priv = netdev_priv(dev);
423 if (priv->dma_cap.rmon)
424 for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
425 memcpy(p, stmmac_mmc[i].stat_string,
427 p += ETH_GSTRING_LEN;
429 for (i = 0; i < STMMAC_STATS_LEN; i++) {
430 memcpy(p, stmmac_gstrings_stats[i].stat_string,
432 p += ETH_GSTRING_LEN;
441 /* Currently only support WOL through Magic packet. */
442 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
444 struct stmmac_priv *priv = netdev_priv(dev);
446 spin_lock_irq(&priv->lock);
447 if (device_can_wakeup(priv->device)) {
448 wol->supported = WAKE_MAGIC | WAKE_UCAST;
449 wol->wolopts = priv->wolopts;
451 spin_unlock_irq(&priv->lock);
454 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
456 struct stmmac_priv *priv = netdev_priv(dev);
457 u32 support = WAKE_MAGIC | WAKE_UCAST;
459 /* By default almost all GMAC devices support the WoL via
460 * magic frame but we can disable it if the HW capability
461 * register shows no support for pmt_magic_frame. */
462 if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
463 wol->wolopts &= ~WAKE_MAGIC;
465 if (!device_can_wakeup(priv->device))
468 if (wol->wolopts & ~support)
472 pr_info("stmmac: wakeup enable\n");
473 device_set_wakeup_enable(priv->device, 1);
474 enable_irq_wake(priv->wol_irq);
476 device_set_wakeup_enable(priv->device, 0);
477 disable_irq_wake(priv->wol_irq);
480 spin_lock_irq(&priv->lock);
481 priv->wolopts = wol->wolopts;
482 spin_unlock_irq(&priv->lock);
487 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
488 struct ethtool_eee *edata)
490 struct stmmac_priv *priv = netdev_priv(dev);
492 if (!priv->dma_cap.eee)
495 edata->eee_enabled = priv->eee_enabled;
496 edata->eee_active = priv->eee_active;
497 edata->tx_lpi_timer = priv->tx_lpi_timer;
499 return phy_ethtool_get_eee(priv->phydev, edata);
502 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
503 struct ethtool_eee *edata)
505 struct stmmac_priv *priv = netdev_priv(dev);
507 priv->eee_enabled = edata->eee_enabled;
509 if (!priv->eee_enabled)
510 stmmac_disable_eee_mode(priv);
512 /* We are asking for enabling the EEE but it is safe
513 * to verify all by invoking the eee_init function.
514 * In case of failure it will return an error.
516 priv->eee_enabled = stmmac_eee_init(priv);
517 if (!priv->eee_enabled)
520 /* Do not change tx_lpi_timer in case of failure */
521 priv->tx_lpi_timer = edata->tx_lpi_timer;
524 return phy_ethtool_set_eee(priv->phydev, edata);
527 static const struct ethtool_ops stmmac_ethtool_ops = {
528 .begin = stmmac_check_if_running,
529 .get_drvinfo = stmmac_ethtool_getdrvinfo,
530 .get_settings = stmmac_ethtool_getsettings,
531 .set_settings = stmmac_ethtool_setsettings,
532 .get_msglevel = stmmac_ethtool_getmsglevel,
533 .set_msglevel = stmmac_ethtool_setmsglevel,
534 .get_regs = stmmac_ethtool_gregs,
535 .get_regs_len = stmmac_ethtool_get_regs_len,
536 .get_link = ethtool_op_get_link,
537 .get_pauseparam = stmmac_get_pauseparam,
538 .set_pauseparam = stmmac_set_pauseparam,
539 .get_ethtool_stats = stmmac_get_ethtool_stats,
540 .get_strings = stmmac_get_strings,
541 .get_wol = stmmac_get_wol,
542 .set_wol = stmmac_set_wol,
543 .get_eee = stmmac_ethtool_op_get_eee,
544 .set_eee = stmmac_ethtool_op_set_eee,
545 .get_sset_count = stmmac_get_sset_count,
546 .get_ts_info = ethtool_op_get_ts_info,
549 void stmmac_set_ethtool_ops(struct net_device *netdev)
551 SET_ETHTOOL_OPS(netdev, &stmmac_ethtool_ops);