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>
32 #include "dwmac_dma.h"
34 #define REG_SPACE_SIZE 0x1054
35 #define MAC100_ETHTOOL_NAME "st_mac100"
36 #define GMAC_ETHTOOL_NAME "st_gmac"
39 char stat_string[ETH_GSTRING_LEN];
44 #define STMMAC_STAT(m) \
45 { #m, FIELD_SIZEOF(struct stmmac_extra_stats, m), \
46 offsetof(struct stmmac_priv, xstats.m)}
48 static const struct stmmac_stats stmmac_gstrings_stats[] = {
49 STMMAC_STAT(tx_underflow),
50 STMMAC_STAT(tx_carrier),
51 STMMAC_STAT(tx_losscarrier),
52 STMMAC_STAT(tx_heartbeat),
53 STMMAC_STAT(tx_deferred),
56 STMMAC_STAT(tx_jabber),
57 STMMAC_STAT(tx_frame_flushed),
58 STMMAC_STAT(tx_payload_error),
59 STMMAC_STAT(tx_ip_header_error),
61 STMMAC_STAT(rx_partial),
63 STMMAC_STAT(rx_toolong),
64 STMMAC_STAT(rx_collision),
66 STMMAC_STAT(rx_length),
68 STMMAC_STAT(rx_multicast),
69 STMMAC_STAT(rx_gmac_overflow),
70 STMMAC_STAT(rx_watchdog),
71 STMMAC_STAT(da_rx_filter_fail),
72 STMMAC_STAT(sa_rx_filter_fail),
73 STMMAC_STAT(rx_missed_cntr),
74 STMMAC_STAT(rx_overflow_cntr),
75 STMMAC_STAT(tx_undeflow_irq),
76 STMMAC_STAT(tx_process_stopped_irq),
77 STMMAC_STAT(tx_jabber_irq),
78 STMMAC_STAT(rx_overflow_irq),
79 STMMAC_STAT(rx_buf_unav_irq),
80 STMMAC_STAT(rx_process_stopped_irq),
81 STMMAC_STAT(rx_watchdog_irq),
82 STMMAC_STAT(tx_early_irq),
83 STMMAC_STAT(fatal_bus_error_irq),
84 STMMAC_STAT(threshold),
85 STMMAC_STAT(tx_pkt_n),
86 STMMAC_STAT(rx_pkt_n),
88 STMMAC_STAT(sched_timer_n),
89 STMMAC_STAT(normal_irq_n),
91 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
93 static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
94 struct ethtool_drvinfo *info)
96 struct stmmac_priv *priv = netdev_priv(dev);
98 if (!priv->plat->has_gmac)
99 strcpy(info->driver, MAC100_ETHTOOL_NAME);
101 strcpy(info->driver, GMAC_ETHTOOL_NAME);
103 strcpy(info->version, DRV_MODULE_VERSION);
104 info->fw_version[0] = '\0';
105 info->n_stats = STMMAC_STATS_LEN;
108 static int stmmac_ethtool_getsettings(struct net_device *dev,
109 struct ethtool_cmd *cmd)
111 struct stmmac_priv *priv = netdev_priv(dev);
112 struct phy_device *phy = priv->phydev;
115 pr_err("%s: %s: PHY is not registered\n",
116 __func__, dev->name);
119 if (!netif_running(dev)) {
120 pr_err("%s: interface is disabled: we cannot track "
121 "link speed / duplex setting\n", dev->name);
124 cmd->transceiver = XCVR_INTERNAL;
125 spin_lock_irq(&priv->lock);
126 rc = phy_ethtool_gset(phy, cmd);
127 spin_unlock_irq(&priv->lock);
131 static int stmmac_ethtool_setsettings(struct net_device *dev,
132 struct ethtool_cmd *cmd)
134 struct stmmac_priv *priv = netdev_priv(dev);
135 struct phy_device *phy = priv->phydev;
138 spin_lock(&priv->lock);
139 rc = phy_ethtool_sset(phy, cmd);
140 spin_unlock(&priv->lock);
145 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
147 struct stmmac_priv *priv = netdev_priv(dev);
148 return priv->msg_enable;
151 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
153 struct stmmac_priv *priv = netdev_priv(dev);
154 priv->msg_enable = level;
158 static int stmmac_check_if_running(struct net_device *dev)
160 if (!netif_running(dev))
165 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
167 return REG_SPACE_SIZE;
170 static void stmmac_ethtool_gregs(struct net_device *dev,
171 struct ethtool_regs *regs, void *space)
174 u32 *reg_space = (u32 *) space;
176 struct stmmac_priv *priv = netdev_priv(dev);
178 memset(reg_space, 0x0, REG_SPACE_SIZE);
180 if (!priv->plat->has_gmac) {
182 for (i = 0; i < 12; i++)
183 reg_space[i] = readl(priv->ioaddr + (i * 4));
185 for (i = 0; i < 9; i++)
187 readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
188 reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
189 reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
192 for (i = 0; i < 55; i++)
193 reg_space[i] = readl(priv->ioaddr + (i * 4));
195 for (i = 0; i < 22; i++)
197 readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
202 stmmac_get_pauseparam(struct net_device *netdev,
203 struct ethtool_pauseparam *pause)
205 struct stmmac_priv *priv = netdev_priv(netdev);
207 spin_lock(&priv->lock);
211 pause->autoneg = priv->phydev->autoneg;
213 if (priv->flow_ctrl & FLOW_RX)
215 if (priv->flow_ctrl & FLOW_TX)
218 spin_unlock(&priv->lock);
222 stmmac_set_pauseparam(struct net_device *netdev,
223 struct ethtool_pauseparam *pause)
225 struct stmmac_priv *priv = netdev_priv(netdev);
226 struct phy_device *phy = priv->phydev;
227 int new_pause = FLOW_OFF;
230 spin_lock(&priv->lock);
233 new_pause |= FLOW_RX;
235 new_pause |= FLOW_TX;
237 priv->flow_ctrl = new_pause;
238 phy->autoneg = pause->autoneg;
241 if (netif_running(netdev))
242 ret = phy_start_aneg(phy);
244 priv->hw->mac->flow_ctrl(priv->ioaddr, phy->duplex,
245 priv->flow_ctrl, priv->pause);
246 spin_unlock(&priv->lock);
250 static void stmmac_get_ethtool_stats(struct net_device *dev,
251 struct ethtool_stats *dummy, u64 *data)
253 struct stmmac_priv *priv = netdev_priv(dev);
256 /* Update HW stats if supported */
257 priv->hw->dma->dma_diagnostic_fr(&dev->stats, (void *) &priv->xstats,
260 for (i = 0; i < STMMAC_STATS_LEN; i++) {
261 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
262 data[i] = (stmmac_gstrings_stats[i].sizeof_stat ==
263 sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
267 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
271 return STMMAC_STATS_LEN;
277 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
284 for (i = 0; i < STMMAC_STATS_LEN; i++) {
285 memcpy(p, stmmac_gstrings_stats[i].stat_string,
287 p += ETH_GSTRING_LEN;
296 /* Currently only support WOL through Magic packet. */
297 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
299 struct stmmac_priv *priv = netdev_priv(dev);
301 spin_lock_irq(&priv->lock);
302 if (device_can_wakeup(priv->device)) {
303 wol->supported = WAKE_MAGIC | WAKE_UCAST;
304 wol->wolopts = priv->wolopts;
306 spin_unlock_irq(&priv->lock);
309 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
311 struct stmmac_priv *priv = netdev_priv(dev);
312 u32 support = WAKE_MAGIC | WAKE_UCAST;
314 if (!device_can_wakeup(priv->device))
317 if (wol->wolopts & ~support)
321 pr_info("stmmac: wakeup enable\n");
322 device_set_wakeup_enable(priv->device, 1);
323 enable_irq_wake(dev->irq);
325 device_set_wakeup_enable(priv->device, 0);
326 disable_irq_wake(dev->irq);
329 spin_lock_irq(&priv->lock);
330 priv->wolopts = wol->wolopts;
331 spin_unlock_irq(&priv->lock);
336 static struct ethtool_ops stmmac_ethtool_ops = {
337 .begin = stmmac_check_if_running,
338 .get_drvinfo = stmmac_ethtool_getdrvinfo,
339 .get_settings = stmmac_ethtool_getsettings,
340 .set_settings = stmmac_ethtool_setsettings,
341 .get_msglevel = stmmac_ethtool_getmsglevel,
342 .set_msglevel = stmmac_ethtool_setmsglevel,
343 .get_regs = stmmac_ethtool_gregs,
344 .get_regs_len = stmmac_ethtool_get_regs_len,
345 .get_link = ethtool_op_get_link,
346 .get_pauseparam = stmmac_get_pauseparam,
347 .set_pauseparam = stmmac_set_pauseparam,
348 .get_ethtool_stats = stmmac_get_ethtool_stats,
349 .get_strings = stmmac_get_strings,
350 .get_wol = stmmac_get_wol,
351 .set_wol = stmmac_set_wol,
352 .get_sset_count = stmmac_get_sset_count,
355 void stmmac_set_ethtool_ops(struct net_device *netdev)
357 SET_ETHTOOL_OPS(netdev, &stmmac_ethtool_ops);