1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright(c) 2009 - 2009 Atheros Corporation. All rights reserved.
4 *
5 * Derived from Intel e1000 driver
6 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
7 */
8
9 #include <linux/netdevice.h>
10 #include <linux/ethtool.h>
11 #include <linux/slab.h>
12
13 #include "atl1c.h"
14
atl1c_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * cmd)15 static int atl1c_get_link_ksettings(struct net_device *netdev,
16 struct ethtool_link_ksettings *cmd)
17 {
18 struct atl1c_adapter *adapter = netdev_priv(netdev);
19 struct atl1c_hw *hw = &adapter->hw;
20 u32 supported, advertising;
21
22 supported = (SUPPORTED_10baseT_Half |
23 SUPPORTED_10baseT_Full |
24 SUPPORTED_100baseT_Half |
25 SUPPORTED_100baseT_Full |
26 SUPPORTED_Autoneg |
27 SUPPORTED_TP);
28 if (hw->link_cap_flags & ATL1C_LINK_CAP_1000M)
29 supported |= SUPPORTED_1000baseT_Full;
30
31 advertising = ADVERTISED_TP;
32
33 advertising |= hw->autoneg_advertised;
34
35 cmd->base.port = PORT_TP;
36 cmd->base.phy_address = 0;
37
38 if (adapter->link_speed != SPEED_0) {
39 cmd->base.speed = adapter->link_speed;
40 if (adapter->link_duplex == FULL_DUPLEX)
41 cmd->base.duplex = DUPLEX_FULL;
42 else
43 cmd->base.duplex = DUPLEX_HALF;
44 } else {
45 cmd->base.speed = SPEED_UNKNOWN;
46 cmd->base.duplex = DUPLEX_UNKNOWN;
47 }
48
49 cmd->base.autoneg = AUTONEG_ENABLE;
50
51 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
52 supported);
53 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
54 advertising);
55
56 return 0;
57 }
58
atl1c_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * cmd)59 static int atl1c_set_link_ksettings(struct net_device *netdev,
60 const struct ethtool_link_ksettings *cmd)
61 {
62 struct atl1c_adapter *adapter = netdev_priv(netdev);
63 struct atl1c_hw *hw = &adapter->hw;
64 u16 autoneg_advertised;
65
66 while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
67 msleep(1);
68
69 if (cmd->base.autoneg == AUTONEG_ENABLE) {
70 autoneg_advertised = ADVERTISED_Autoneg;
71 } else {
72 u32 speed = cmd->base.speed;
73 if (speed == SPEED_1000) {
74 if (cmd->base.duplex != DUPLEX_FULL) {
75 if (netif_msg_link(adapter))
76 dev_warn(&adapter->pdev->dev,
77 "1000M half is invalid\n");
78 clear_bit(__AT_RESETTING, &adapter->flags);
79 return -EINVAL;
80 }
81 autoneg_advertised = ADVERTISED_1000baseT_Full;
82 } else if (speed == SPEED_100) {
83 if (cmd->base.duplex == DUPLEX_FULL)
84 autoneg_advertised = ADVERTISED_100baseT_Full;
85 else
86 autoneg_advertised = ADVERTISED_100baseT_Half;
87 } else {
88 if (cmd->base.duplex == DUPLEX_FULL)
89 autoneg_advertised = ADVERTISED_10baseT_Full;
90 else
91 autoneg_advertised = ADVERTISED_10baseT_Half;
92 }
93 }
94
95 if (hw->autoneg_advertised != autoneg_advertised) {
96 hw->autoneg_advertised = autoneg_advertised;
97 if (atl1c_restart_autoneg(hw) != 0) {
98 if (netif_msg_link(adapter))
99 dev_warn(&adapter->pdev->dev,
100 "ethtool speed/duplex setting failed\n");
101 clear_bit(__AT_RESETTING, &adapter->flags);
102 return -EINVAL;
103 }
104 }
105 clear_bit(__AT_RESETTING, &adapter->flags);
106 return 0;
107 }
108
atl1c_get_msglevel(struct net_device * netdev)109 static u32 atl1c_get_msglevel(struct net_device *netdev)
110 {
111 struct atl1c_adapter *adapter = netdev_priv(netdev);
112 return adapter->msg_enable;
113 }
114
atl1c_set_msglevel(struct net_device * netdev,u32 data)115 static void atl1c_set_msglevel(struct net_device *netdev, u32 data)
116 {
117 struct atl1c_adapter *adapter = netdev_priv(netdev);
118 adapter->msg_enable = data;
119 }
120
atl1c_get_regs_len(struct net_device * netdev)121 static int atl1c_get_regs_len(struct net_device *netdev)
122 {
123 return AT_REGS_LEN;
124 }
125
atl1c_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)126 static void atl1c_get_regs(struct net_device *netdev,
127 struct ethtool_regs *regs, void *p)
128 {
129 struct atl1c_adapter *adapter = netdev_priv(netdev);
130 struct atl1c_hw *hw = &adapter->hw;
131 u32 *regs_buff = p;
132 u16 phy_data;
133
134 memset(p, 0, AT_REGS_LEN);
135
136 regs->version = 1;
137 AT_READ_REG(hw, REG_PM_CTRL, p++);
138 AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL, p++);
139 AT_READ_REG(hw, REG_TWSI_CTRL, p++);
140 AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL, p++);
141 AT_READ_REG(hw, REG_MASTER_CTRL, p++);
142 AT_READ_REG(hw, REG_MANUAL_TIMER_INIT, p++);
143 AT_READ_REG(hw, REG_IRQ_MODRT_TIMER_INIT, p++);
144 AT_READ_REG(hw, REG_GPHY_CTRL, p++);
145 AT_READ_REG(hw, REG_LINK_CTRL, p++);
146 AT_READ_REG(hw, REG_IDLE_STATUS, p++);
147 AT_READ_REG(hw, REG_MDIO_CTRL, p++);
148 AT_READ_REG(hw, REG_SERDES, p++);
149 AT_READ_REG(hw, REG_MAC_CTRL, p++);
150 AT_READ_REG(hw, REG_MAC_IPG_IFG, p++);
151 AT_READ_REG(hw, REG_MAC_STA_ADDR, p++);
152 AT_READ_REG(hw, REG_MAC_STA_ADDR+4, p++);
153 AT_READ_REG(hw, REG_RX_HASH_TABLE, p++);
154 AT_READ_REG(hw, REG_RX_HASH_TABLE+4, p++);
155 AT_READ_REG(hw, REG_RXQ_CTRL, p++);
156 AT_READ_REG(hw, REG_TXQ_CTRL, p++);
157 AT_READ_REG(hw, REG_MTU, p++);
158 AT_READ_REG(hw, REG_WOL_CTRL, p++);
159
160 atl1c_read_phy_reg(hw, MII_BMCR, &phy_data);
161 regs_buff[AT_REGS_LEN/sizeof(u32) - 2] = (u32) phy_data;
162 atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
163 regs_buff[AT_REGS_LEN/sizeof(u32) - 1] = (u32) phy_data;
164 }
165
atl1c_get_eeprom_len(struct net_device * netdev)166 static int atl1c_get_eeprom_len(struct net_device *netdev)
167 {
168 struct atl1c_adapter *adapter = netdev_priv(netdev);
169
170 if (atl1c_check_eeprom_exist(&adapter->hw))
171 return AT_EEPROM_LEN;
172 else
173 return 0;
174 }
175
atl1c_get_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)176 static int atl1c_get_eeprom(struct net_device *netdev,
177 struct ethtool_eeprom *eeprom, u8 *bytes)
178 {
179 struct atl1c_adapter *adapter = netdev_priv(netdev);
180 struct atl1c_hw *hw = &adapter->hw;
181 u32 *eeprom_buff;
182 int first_dword, last_dword;
183 int ret_val = 0;
184 int i;
185
186 if (eeprom->len == 0)
187 return -EINVAL;
188
189 if (!atl1c_check_eeprom_exist(hw)) /* not exist */
190 return -EINVAL;
191
192 eeprom->magic = adapter->pdev->vendor |
193 (adapter->pdev->device << 16);
194
195 first_dword = eeprom->offset >> 2;
196 last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
197
198 eeprom_buff = kmalloc_array(last_dword - first_dword + 1, sizeof(u32),
199 GFP_KERNEL);
200 if (eeprom_buff == NULL)
201 return -ENOMEM;
202
203 for (i = first_dword; i < last_dword; i++) {
204 if (!atl1c_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
205 kfree(eeprom_buff);
206 return -EIO;
207 }
208 }
209
210 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
211 eeprom->len);
212 kfree(eeprom_buff);
213
214 return ret_val;
215 return 0;
216 }
217
atl1c_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)218 static void atl1c_get_drvinfo(struct net_device *netdev,
219 struct ethtool_drvinfo *drvinfo)
220 {
221 struct atl1c_adapter *adapter = netdev_priv(netdev);
222
223 strscpy(drvinfo->driver, atl1c_driver_name, sizeof(drvinfo->driver));
224 strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
225 sizeof(drvinfo->bus_info));
226 }
227
atl1c_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)228 static void atl1c_get_wol(struct net_device *netdev,
229 struct ethtool_wolinfo *wol)
230 {
231 struct atl1c_adapter *adapter = netdev_priv(netdev);
232
233 wol->supported = WAKE_MAGIC | WAKE_PHY;
234 wol->wolopts = 0;
235
236 if (adapter->wol & AT_WUFC_EX)
237 wol->wolopts |= WAKE_UCAST;
238 if (adapter->wol & AT_WUFC_MC)
239 wol->wolopts |= WAKE_MCAST;
240 if (adapter->wol & AT_WUFC_BC)
241 wol->wolopts |= WAKE_BCAST;
242 if (adapter->wol & AT_WUFC_MAG)
243 wol->wolopts |= WAKE_MAGIC;
244 if (adapter->wol & AT_WUFC_LNKC)
245 wol->wolopts |= WAKE_PHY;
246 }
247
atl1c_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)248 static int atl1c_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
249 {
250 struct atl1c_adapter *adapter = netdev_priv(netdev);
251
252 if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
253 WAKE_UCAST | WAKE_BCAST | WAKE_MCAST))
254 return -EOPNOTSUPP;
255 /* these settings will always override what we currently have */
256 adapter->wol = 0;
257
258 if (wol->wolopts & WAKE_MAGIC)
259 adapter->wol |= AT_WUFC_MAG;
260 if (wol->wolopts & WAKE_PHY)
261 adapter->wol |= AT_WUFC_LNKC;
262
263 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
264
265 return 0;
266 }
267
atl1c_nway_reset(struct net_device * netdev)268 static int atl1c_nway_reset(struct net_device *netdev)
269 {
270 struct atl1c_adapter *adapter = netdev_priv(netdev);
271 if (netif_running(netdev))
272 atl1c_reinit_locked(adapter);
273 return 0;
274 }
275
276 static const struct ethtool_ops atl1c_ethtool_ops = {
277 .get_drvinfo = atl1c_get_drvinfo,
278 .get_regs_len = atl1c_get_regs_len,
279 .get_regs = atl1c_get_regs,
280 .get_wol = atl1c_get_wol,
281 .set_wol = atl1c_set_wol,
282 .get_msglevel = atl1c_get_msglevel,
283 .set_msglevel = atl1c_set_msglevel,
284 .nway_reset = atl1c_nway_reset,
285 .get_link = ethtool_op_get_link,
286 .get_eeprom_len = atl1c_get_eeprom_len,
287 .get_eeprom = atl1c_get_eeprom,
288 .get_link_ksettings = atl1c_get_link_ksettings,
289 .set_link_ksettings = atl1c_set_link_ksettings,
290 };
291
atl1c_set_ethtool_ops(struct net_device * netdev)292 void atl1c_set_ethtool_ops(struct net_device *netdev)
293 {
294 netdev->ethtool_ops = &atl1c_ethtool_ops;
295 }
296