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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / ethernet / atheros / atl1e / atl1e_ethtool.c
blobc6b9e7ea8e38f34226e793618ddf0fecb887577f
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright(c) 2007 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 "atl1e.h"
14
15 static int atl1e_get_link_ksettings(struct net_device *netdev,
16 struct ethtool_link_ksettings *cmd)
17 {
18 struct atl1e_adapter *adapter = netdev_priv(netdev);
19 struct atl1e_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->nic_type == athr_l1e)
29 supported |= SUPPORTED_1000baseT_Full;
30
31 advertising = ADVERTISED_TP;
32
33 advertising |= ADVERTISED_Autoneg;
34 advertising |= hw->autoneg_advertised;
35
36 cmd->base.port = PORT_TP;
37 cmd->base.phy_address = 0;
38
39 if (adapter->link_speed != SPEED_0) {
40 cmd->base.speed = adapter->link_speed;
41 if (adapter->link_duplex == FULL_DUPLEX)
42 cmd->base.duplex = DUPLEX_FULL;
43 else
44 cmd->base.duplex = DUPLEX_HALF;
45 } else {
46 cmd->base.speed = SPEED_UNKNOWN;
47 cmd->base.duplex = DUPLEX_UNKNOWN;
48 }
49
50 cmd->base.autoneg = AUTONEG_ENABLE;
51
52 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
53 supported);
54 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
55 advertising);
56
57 return 0;
58 }
59
60 static int atl1e_set_link_ksettings(struct net_device *netdev,
61 const struct ethtool_link_ksettings *cmd)
62 {
63 struct atl1e_adapter *adapter = netdev_priv(netdev);
64 struct atl1e_hw *hw = &adapter->hw;
65 u32 advertising;
66
67 ethtool_convert_link_mode_to_legacy_u32(&advertising,
68 cmd->link_modes.advertising);
69
70 while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
71 msleep(1);
72
73 if (cmd->base.autoneg == AUTONEG_ENABLE) {
74 u16 adv4, adv9;
75
76 if (advertising & ADVERTISE_1000_FULL) {
77 if (hw->nic_type == athr_l1e) {
78 hw->autoneg_advertised =
79 advertising & AT_ADV_MASK;
80 } else {
81 clear_bit(__AT_RESETTING, &adapter->flags);
82 return -EINVAL;
83 }
84 } else if (advertising & ADVERTISE_1000_HALF) {
85 clear_bit(__AT_RESETTING, &adapter->flags);
86 return -EINVAL;
87 } else {
88 hw->autoneg_advertised =
89 advertising & AT_ADV_MASK;
90 }
91 advertising = hw->autoneg_advertised |
92 ADVERTISED_TP | ADVERTISED_Autoneg;
93
94 adv4 = hw->mii_autoneg_adv_reg & ~ADVERTISE_ALL;
95 adv9 = hw->mii_1000t_ctrl_reg & ~MII_AT001_CR_1000T_SPEED_MASK;
96 if (hw->autoneg_advertised & ADVERTISE_10_HALF)
97 adv4 |= ADVERTISE_10HALF;
98 if (hw->autoneg_advertised & ADVERTISE_10_FULL)
99 adv4 |= ADVERTISE_10FULL;
100 if (hw->autoneg_advertised & ADVERTISE_100_HALF)
101 adv4 |= ADVERTISE_100HALF;
102 if (hw->autoneg_advertised & ADVERTISE_100_FULL)
103 adv4 |= ADVERTISE_100FULL;
104 if (hw->autoneg_advertised & ADVERTISE_1000_FULL)
105 adv9 |= ADVERTISE_1000FULL;
106
107 if (adv4 != hw->mii_autoneg_adv_reg ||
108 adv9 != hw->mii_1000t_ctrl_reg) {
109 hw->mii_autoneg_adv_reg = adv4;
110 hw->mii_1000t_ctrl_reg = adv9;
111 hw->re_autoneg = true;
112 }
113
114 } else {
115 clear_bit(__AT_RESETTING, &adapter->flags);
116 return -EINVAL;
117 }
118
119 /* reset the link */
120
121 if (netif_running(adapter->netdev)) {
122 atl1e_down(adapter);
123 atl1e_up(adapter);
124 } else
125 atl1e_reset_hw(&adapter->hw);
126
127 clear_bit(__AT_RESETTING, &adapter->flags);
128 return 0;
129 }
130
131 static u32 atl1e_get_msglevel(struct net_device *netdev)
132 {
133 #ifdef DBG
134 return 1;
135 #else
136 return 0;
137 #endif
138 }
139
140 static int atl1e_get_regs_len(struct net_device *netdev)
141 {
142 return AT_REGS_LEN * sizeof(u32);
143 }
144
145 static void atl1e_get_regs(struct net_device *netdev,
146 struct ethtool_regs *regs, void *p)
147 {
148 struct atl1e_adapter *adapter = netdev_priv(netdev);
149 struct atl1e_hw *hw = &adapter->hw;
150 u32 *regs_buff = p;
151 u16 phy_data;
152
153 memset(p, 0, AT_REGS_LEN * sizeof(u32));
154
155 regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
156
157 regs_buff[0] = AT_READ_REG(hw, REG_VPD_CAP);
158 regs_buff[1] = AT_READ_REG(hw, REG_SPI_FLASH_CTRL);
159 regs_buff[2] = AT_READ_REG(hw, REG_SPI_FLASH_CONFIG);
160 regs_buff[3] = AT_READ_REG(hw, REG_TWSI_CTRL);
161 regs_buff[4] = AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
162 regs_buff[5] = AT_READ_REG(hw, REG_MASTER_CTRL);
163 regs_buff[6] = AT_READ_REG(hw, REG_MANUAL_TIMER_INIT);
164 regs_buff[7] = AT_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
165 regs_buff[8] = AT_READ_REG(hw, REG_GPHY_CTRL);
166 regs_buff[9] = AT_READ_REG(hw, REG_CMBDISDMA_TIMER);
167 regs_buff[10] = AT_READ_REG(hw, REG_IDLE_STATUS);
168 regs_buff[11] = AT_READ_REG(hw, REG_MDIO_CTRL);
169 regs_buff[12] = AT_READ_REG(hw, REG_SERDES_LOCK);
170 regs_buff[13] = AT_READ_REG(hw, REG_MAC_CTRL);
171 regs_buff[14] = AT_READ_REG(hw, REG_MAC_IPG_IFG);
172 regs_buff[15] = AT_READ_REG(hw, REG_MAC_STA_ADDR);
173 regs_buff[16] = AT_READ_REG(hw, REG_MAC_STA_ADDR+4);
174 regs_buff[17] = AT_READ_REG(hw, REG_RX_HASH_TABLE);
175 regs_buff[18] = AT_READ_REG(hw, REG_RX_HASH_TABLE+4);
176 regs_buff[19] = AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
177 regs_buff[20] = AT_READ_REG(hw, REG_MTU);
178 regs_buff[21] = AT_READ_REG(hw, REG_WOL_CTRL);
179 regs_buff[22] = AT_READ_REG(hw, REG_SRAM_TRD_ADDR);
180 regs_buff[23] = AT_READ_REG(hw, REG_SRAM_TRD_LEN);
181 regs_buff[24] = AT_READ_REG(hw, REG_SRAM_RXF_ADDR);
182 regs_buff[25] = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
183 regs_buff[26] = AT_READ_REG(hw, REG_SRAM_TXF_ADDR);
184 regs_buff[27] = AT_READ_REG(hw, REG_SRAM_TXF_LEN);
185 regs_buff[28] = AT_READ_REG(hw, REG_SRAM_TCPH_ADDR);
186 regs_buff[29] = AT_READ_REG(hw, REG_SRAM_PKTH_ADDR);
187
188 atl1e_read_phy_reg(hw, MII_BMCR, &phy_data);
189 regs_buff[73] = (u32)phy_data;
190 atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
191 regs_buff[74] = (u32)phy_data;
192 }
193
194 static int atl1e_get_eeprom_len(struct net_device *netdev)
195 {
196 struct atl1e_adapter *adapter = netdev_priv(netdev);
197
198 if (!atl1e_check_eeprom_exist(&adapter->hw))
199 return AT_EEPROM_LEN;
200 else
201 return 0;
202 }
203
204 static int atl1e_get_eeprom(struct net_device *netdev,
205 struct ethtool_eeprom *eeprom, u8 *bytes)
206 {
207 struct atl1e_adapter *adapter = netdev_priv(netdev);
208 struct atl1e_hw *hw = &adapter->hw;
209 u32 *eeprom_buff;
210 int first_dword, last_dword;
211 int ret_val = 0;
212 int i;
213
214 if (eeprom->len == 0)
215 return -EINVAL;
216
217 if (atl1e_check_eeprom_exist(hw)) /* not exist */
218 return -EINVAL;
219
220 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
221
222 first_dword = eeprom->offset >> 2;
223 last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
224
225 eeprom_buff = kmalloc_array(last_dword - first_dword + 1, sizeof(u32),
226 GFP_KERNEL);
227 if (eeprom_buff == NULL)
228 return -ENOMEM;
229
230 for (i = first_dword; i < last_dword; i++) {
231 if (!atl1e_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
232 kfree(eeprom_buff);
233 return -EIO;
234 }
235 }
236
237 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
238 eeprom->len);
239 kfree(eeprom_buff);
240
241 return ret_val;
242 }
243
244 static int atl1e_set_eeprom(struct net_device *netdev,
245 struct ethtool_eeprom *eeprom, u8 *bytes)
246 {
247 struct atl1e_adapter *adapter = netdev_priv(netdev);
248 struct atl1e_hw *hw = &adapter->hw;
249 u32 *eeprom_buff;
250 u32 *ptr;
251 int first_dword, last_dword;
252 int ret_val = 0;
253 int i;
254
255 if (eeprom->len == 0)
256 return -EOPNOTSUPP;
257
258 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
259 return -EINVAL;
260
261 first_dword = eeprom->offset >> 2;
262 last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
263 eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL);
264 if (eeprom_buff == NULL)
265 return -ENOMEM;
266
267 ptr = eeprom_buff;
268
269 if (eeprom->offset & 3) {
270 /* need read/modify/write of first changed EEPROM word */
271 /* only the second byte of the word is being modified */
272 if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) {
273 ret_val = -EIO;
274 goto out;
275 }
276 ptr++;
277 }
278 if (((eeprom->offset + eeprom->len) & 3)) {
279 /* need read/modify/write of last changed EEPROM word */
280 /* only the first byte of the word is being modified */
281
282 if (!atl1e_read_eeprom(hw, last_dword * 4,
283 &(eeprom_buff[last_dword - first_dword]))) {
284 ret_val = -EIO;
285 goto out;
286 }
287 }
288
289 /* Device's eeprom is always little-endian, word addressable */
290 memcpy(ptr, bytes, eeprom->len);
291
292 for (i = 0; i < last_dword - first_dword + 1; i++) {
293 if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4),
294 eeprom_buff[i])) {
295 ret_val = -EIO;
296 goto out;
297 }
298 }
299 out:
300 kfree(eeprom_buff);
301 return ret_val;
302 }
303
304 static void atl1e_get_drvinfo(struct net_device *netdev,
305 struct ethtool_drvinfo *drvinfo)
306 {
307 struct atl1e_adapter *adapter = netdev_priv(netdev);
308
309 strlcpy(drvinfo->driver, atl1e_driver_name, sizeof(drvinfo->driver));
310 strlcpy(drvinfo->version, atl1e_driver_version,
311 sizeof(drvinfo->version));
312 strlcpy(drvinfo->fw_version, "L1e", sizeof(drvinfo->fw_version));
313 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
314 sizeof(drvinfo->bus_info));
315 }
316
317 static void atl1e_get_wol(struct net_device *netdev,
318 struct ethtool_wolinfo *wol)
319 {
320 struct atl1e_adapter *adapter = netdev_priv(netdev);
321
322 wol->supported = WAKE_MAGIC | WAKE_PHY;
323 wol->wolopts = 0;
324
325 if (adapter->wol & AT_WUFC_EX)
326 wol->wolopts |= WAKE_UCAST;
327 if (adapter->wol & AT_WUFC_MC)
328 wol->wolopts |= WAKE_MCAST;
329 if (adapter->wol & AT_WUFC_BC)
330 wol->wolopts |= WAKE_BCAST;
331 if (adapter->wol & AT_WUFC_MAG)
332 wol->wolopts |= WAKE_MAGIC;
333 if (adapter->wol & AT_WUFC_LNKC)
334 wol->wolopts |= WAKE_PHY;
335 }
336
337 static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
338 {
339 struct atl1e_adapter *adapter = netdev_priv(netdev);
340
341 if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
342 WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
343 return -EOPNOTSUPP;
344 /* these settings will always override what we currently have */
345 adapter->wol = 0;
346
347 if (wol->wolopts & WAKE_MAGIC)
348 adapter->wol |= AT_WUFC_MAG;
349 if (wol->wolopts & WAKE_PHY)
350 adapter->wol |= AT_WUFC_LNKC;
351
352 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
353
354 return 0;
355 }
356
357 static int atl1e_nway_reset(struct net_device *netdev)
358 {
359 struct atl1e_adapter *adapter = netdev_priv(netdev);
360 if (netif_running(netdev))
361 atl1e_reinit_locked(adapter);
362 return 0;
363 }
364
365 static const struct ethtool_ops atl1e_ethtool_ops = {
366 .get_drvinfo = atl1e_get_drvinfo,
367 .get_regs_len = atl1e_get_regs_len,
368 .get_regs = atl1e_get_regs,
369 .get_wol = atl1e_get_wol,
370 .set_wol = atl1e_set_wol,
371 .get_msglevel = atl1e_get_msglevel,
372 .nway_reset = atl1e_nway_reset,
373 .get_link = ethtool_op_get_link,
374 .get_eeprom_len = atl1e_get_eeprom_len,
375 .get_eeprom = atl1e_get_eeprom,
376 .set_eeprom = atl1e_set_eeprom,
377 .get_link_ksettings = atl1e_get_link_ksettings,
378 .set_link_ksettings = atl1e_set_link_ksettings,
379 };
380
381 void atl1e_set_ethtool_ops(struct net_device *netdev)
382 {
383 netdev->ethtool_ops = &atl1e_ethtool_ops;
384 }
Linux with added FPC-III support