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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / usb / aqc111.c
blob7e44110746dd00f11382b9a03d8c56e724e00c59
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Aquantia Corp. Aquantia AQtion USB to 5GbE Controller
3 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
4 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
5 * Copyright (C) 2002-2003 TiVo Inc.
6 * Copyright (C) 2017-2018 ASIX
7 * Copyright (C) 2018 Aquantia Corp.
8 */
9
10 #include <linux/module.h>
11 #include <linux/netdevice.h>
12 #include <linux/ethtool.h>
13 #include <linux/mii.h>
14 #include <linux/usb.h>
15 #include <linux/crc32.h>
16 #include <linux/if_vlan.h>
17 #include <linux/usb/cdc.h>
18 #include <linux/usb/usbnet.h>
19 #include <linux/linkmode.h>
20
21 #include "aqc111.h"
22
23 #define DRIVER_NAME "aqc111"
24
25 static int aqc111_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
26 u16 index, u16 size, void *data)
27 {
28 int ret;
29
30 ret = usbnet_read_cmd_nopm(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR |
31 USB_RECIP_DEVICE, value, index, data, size);
32
33 if (unlikely(ret < 0))
34 netdev_warn(dev->net,
35 "Failed to read(0x%x) reg index 0x%04x: %d\n",
36 cmd, index, ret);
37
38 return ret;
39 }
40
41 static int aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value,
42 u16 index, u16 size, void *data)
43 {
44 int ret;
45
46 ret = usbnet_read_cmd(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR |
47 USB_RECIP_DEVICE, value, index, data, size);
48
49 if (unlikely(ret < 0))
50 netdev_warn(dev->net,
51 "Failed to read(0x%x) reg index 0x%04x: %d\n",
52 cmd, index, ret);
53
54 return ret;
55 }
56
57 static int aqc111_read16_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
58 u16 index, u16 *data)
59 {
60 int ret = 0;
61
62 ret = aqc111_read_cmd_nopm(dev, cmd, value, index, sizeof(*data), data);
63 le16_to_cpus(data);
64
65 return ret;
66 }
67
68 static int aqc111_read16_cmd(struct usbnet *dev, u8 cmd, u16 value,
69 u16 index, u16 *data)
70 {
71 int ret = 0;
72
73 ret = aqc111_read_cmd(dev, cmd, value, index, sizeof(*data), data);
74 le16_to_cpus(data);
75
76 return ret;
77 }
78
79 static int __aqc111_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
80 u16 value, u16 index, u16 size, const void *data)
81 {
82 int err = -ENOMEM;
83 void *buf = NULL;
84
85 netdev_dbg(dev->net,
86 "%s cmd=%#x reqtype=%#x value=%#x index=%#x size=%d\n",
87 __func__, cmd, reqtype, value, index, size);
88
89 if (data) {
90 buf = kmemdup(data, size, GFP_KERNEL);
91 if (!buf)
92 goto out;
93 }
94
95 err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
96 cmd, reqtype, value, index, buf, size,
97 (cmd == AQ_PHY_POWER) ? AQ_USB_PHY_SET_TIMEOUT :
98 AQ_USB_SET_TIMEOUT);
99
100 if (unlikely(err < 0))
101 netdev_warn(dev->net,
102 "Failed to write(0x%x) reg index 0x%04x: %d\n",
103 cmd, index, err);
104 kfree(buf);
105
106 out:
107 return err;
108 }
109
110 static int aqc111_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
111 u16 index, u16 size, void *data)
112 {
113 int ret;
114
115 ret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
116 USB_RECIP_DEVICE, value, index, size, data);
117
118 return ret;
119 }
120
121 static int aqc111_write_cmd(struct usbnet *dev, u8 cmd, u16 value,
122 u16 index, u16 size, void *data)
123 {
124 int ret;
125
126 if (usb_autopm_get_interface(dev->intf) < 0)
127 return -ENODEV;
128
129 ret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
130 USB_RECIP_DEVICE, value, index, size, data);
131
132 usb_autopm_put_interface(dev->intf);
133
134 return ret;
135 }
136
137 static int aqc111_write16_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
138 u16 index, u16 *data)
139 {
140 u16 tmp = *data;
141
142 cpu_to_le16s(&tmp);
143
144 return aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), &tmp);
145 }
146
147 static int aqc111_write16_cmd(struct usbnet *dev, u8 cmd, u16 value,
148 u16 index, u16 *data)
149 {
150 u16 tmp = *data;
151
152 cpu_to_le16s(&tmp);
153
154 return aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), &tmp);
155 }
156
157 static int aqc111_write32_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
158 u16 index, u32 *data)
159 {
160 u32 tmp = *data;
161
162 cpu_to_le32s(&tmp);
163
164 return aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), &tmp);
165 }
166
167 static int aqc111_write32_cmd(struct usbnet *dev, u8 cmd, u16 value,
168 u16 index, u32 *data)
169 {
170 u32 tmp = *data;
171
172 cpu_to_le32s(&tmp);
173
174 return aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), &tmp);
175 }
176
177 static int aqc111_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
178 u16 index, u16 size, void *data)
179 {
180 return usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
181 USB_RECIP_DEVICE, value, index, data,
182 size);
183 }
184
185 static int aqc111_write16_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
186 u16 index, u16 *data)
187 {
188 u16 tmp = *data;
189
190 cpu_to_le16s(&tmp);
191
192 return aqc111_write_cmd_async(dev, cmd, value, index,
193 sizeof(tmp), &tmp);
194 }
195
196 static void aqc111_get_drvinfo(struct net_device *net,
197 struct ethtool_drvinfo *info)
198 {
199 struct usbnet *dev = netdev_priv(net);
200 struct aqc111_data *aqc111_data = dev->driver_priv;
201
202 /* Inherit standard device info */
203 usbnet_get_drvinfo(net, info);
204 strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
205 snprintf(info->fw_version, sizeof(info->fw_version), "%u.%u.%u",
206 aqc111_data->fw_ver.major,
207 aqc111_data->fw_ver.minor,
208 aqc111_data->fw_ver.rev);
209 info->eedump_len = 0x00;
210 info->regdump_len = 0x00;
211 }
212
213 static void aqc111_get_wol(struct net_device *net,
214 struct ethtool_wolinfo *wolinfo)
215 {
216 struct usbnet *dev = netdev_priv(net);
217 struct aqc111_data *aqc111_data = dev->driver_priv;
218
219 wolinfo->supported = WAKE_MAGIC;
220 wolinfo->wolopts = 0;
221
222 if (aqc111_data->wol_flags & AQ_WOL_FLAG_MP)
223 wolinfo->wolopts |= WAKE_MAGIC;
224 }
225
226 static int aqc111_set_wol(struct net_device *net,
227 struct ethtool_wolinfo *wolinfo)
228 {
229 struct usbnet *dev = netdev_priv(net);
230 struct aqc111_data *aqc111_data = dev->driver_priv;
231
232 if (wolinfo->wolopts & ~WAKE_MAGIC)
233 return -EINVAL;
234
235 aqc111_data->wol_flags = 0;
236 if (wolinfo->wolopts & WAKE_MAGIC)
237 aqc111_data->wol_flags |= AQ_WOL_FLAG_MP;
238
239 return 0;
240 }
241
242 static void aqc111_speed_to_link_mode(u32 speed,
243 struct ethtool_link_ksettings *elk)
244 {
245 switch (speed) {
246 case SPEED_5000:
247 ethtool_link_ksettings_add_link_mode(elk, advertising,
248 5000baseT_Full);
249 break;
250 case SPEED_2500:
251 ethtool_link_ksettings_add_link_mode(elk, advertising,
252 2500baseT_Full);
253 break;
254 case SPEED_1000:
255 ethtool_link_ksettings_add_link_mode(elk, advertising,
256 1000baseT_Full);
257 break;
258 case SPEED_100:
259 ethtool_link_ksettings_add_link_mode(elk, advertising,
260 100baseT_Full);
261 break;
262 }
263 }
264
265 static int aqc111_get_link_ksettings(struct net_device *net,
266 struct ethtool_link_ksettings *elk)
267 {
268 struct usbnet *dev = netdev_priv(net);
269 struct aqc111_data *aqc111_data = dev->driver_priv;
270 enum usb_device_speed usb_speed = dev->udev->speed;
271 u32 speed = SPEED_UNKNOWN;
272
273 ethtool_link_ksettings_zero_link_mode(elk, supported);
274 ethtool_link_ksettings_add_link_mode(elk, supported,
275 100baseT_Full);
276 ethtool_link_ksettings_add_link_mode(elk, supported,
277 1000baseT_Full);
278 if (usb_speed == USB_SPEED_SUPER) {
279 ethtool_link_ksettings_add_link_mode(elk, supported,
280 2500baseT_Full);
281 ethtool_link_ksettings_add_link_mode(elk, supported,
282 5000baseT_Full);
283 }
284 ethtool_link_ksettings_add_link_mode(elk, supported, TP);
285 ethtool_link_ksettings_add_link_mode(elk, supported, Autoneg);
286
287 elk->base.port = PORT_TP;
288 elk->base.transceiver = XCVR_INTERNAL;
289
290 elk->base.mdio_support = 0x00; /*Not supported*/
291
292 if (aqc111_data->autoneg)
293 linkmode_copy(elk->link_modes.advertising,
294 elk->link_modes.supported);
295 else
296 aqc111_speed_to_link_mode(aqc111_data->advertised_speed, elk);
297
298 elk->base.autoneg = aqc111_data->autoneg;
299
300 switch (aqc111_data->link_speed) {
301 case AQ_INT_SPEED_5G:
302 speed = SPEED_5000;
303 break;
304 case AQ_INT_SPEED_2_5G:
305 speed = SPEED_2500;
306 break;
307 case AQ_INT_SPEED_1G:
308 speed = SPEED_1000;
309 break;
310 case AQ_INT_SPEED_100M:
311 speed = SPEED_100;
312 break;
313 }
314 elk->base.duplex = DUPLEX_FULL;
315 elk->base.speed = speed;
316
317 return 0;
318 }
319
320 static void aqc111_set_phy_speed(struct usbnet *dev, u8 autoneg, u16 speed)
321 {
322 struct aqc111_data *aqc111_data = dev->driver_priv;
323
324 aqc111_data->phy_cfg &= ~AQ_ADV_MASK;
325 aqc111_data->phy_cfg |= AQ_PAUSE;
326 aqc111_data->phy_cfg |= AQ_ASYM_PAUSE;
327 aqc111_data->phy_cfg |= AQ_DOWNSHIFT;
328 aqc111_data->phy_cfg &= ~AQ_DSH_RETRIES_MASK;
329 aqc111_data->phy_cfg |= (3 << AQ_DSH_RETRIES_SHIFT) &
330 AQ_DSH_RETRIES_MASK;
331
332 if (autoneg == AUTONEG_ENABLE) {
333 switch (speed) {
334 case SPEED_5000:
335 aqc111_data->phy_cfg |= AQ_ADV_5G;
336 /* fall-through */
337 case SPEED_2500:
338 aqc111_data->phy_cfg |= AQ_ADV_2G5;
339 /* fall-through */
340 case SPEED_1000:
341 aqc111_data->phy_cfg |= AQ_ADV_1G;
342 /* fall-through */
343 case SPEED_100:
344 aqc111_data->phy_cfg |= AQ_ADV_100M;
345 /* fall-through */
346 }
347 } else {
348 switch (speed) {
349 case SPEED_5000:
350 aqc111_data->phy_cfg |= AQ_ADV_5G;
351 break;
352 case SPEED_2500:
353 aqc111_data->phy_cfg |= AQ_ADV_2G5;
354 break;
355 case SPEED_1000:
356 aqc111_data->phy_cfg |= AQ_ADV_1G;
357 break;
358 case SPEED_100:
359 aqc111_data->phy_cfg |= AQ_ADV_100M;
360 break;
361 }
362 }
363
364 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, &aqc111_data->phy_cfg);
365 }
366
367 static int aqc111_set_link_ksettings(struct net_device *net,
368 const struct ethtool_link_ksettings *elk)
369 {
370 struct usbnet *dev = netdev_priv(net);
371 struct aqc111_data *aqc111_data = dev->driver_priv;
372 enum usb_device_speed usb_speed = dev->udev->speed;
373 u8 autoneg = elk->base.autoneg;
374 u32 speed = elk->base.speed;
375
376 if (autoneg == AUTONEG_ENABLE) {
377 if (aqc111_data->autoneg != AUTONEG_ENABLE) {
378 aqc111_data->autoneg = AUTONEG_ENABLE;
379 aqc111_data->advertised_speed =
380 (usb_speed == USB_SPEED_SUPER) ?
381 SPEED_5000 : SPEED_1000;
382 aqc111_set_phy_speed(dev, aqc111_data->autoneg,
383 aqc111_data->advertised_speed);
384 }
385 } else {
386 if (speed != SPEED_100 &&
387 speed != SPEED_1000 &&
388 speed != SPEED_2500 &&
389 speed != SPEED_5000 &&
390 speed != SPEED_UNKNOWN)
391 return -EINVAL;
392
393 if (elk->base.duplex != DUPLEX_FULL)
394 return -EINVAL;
395
396 if (usb_speed != USB_SPEED_SUPER && speed > SPEED_1000)
397 return -EINVAL;
398
399 aqc111_data->autoneg = AUTONEG_DISABLE;
400 if (speed != SPEED_UNKNOWN)
401 aqc111_data->advertised_speed = speed;
402
403 aqc111_set_phy_speed(dev, aqc111_data->autoneg,
404 aqc111_data->advertised_speed);
405 }
406
407 return 0;
408 }
409
410 static const struct ethtool_ops aqc111_ethtool_ops = {
411 .get_drvinfo = aqc111_get_drvinfo,
412 .get_wol = aqc111_get_wol,
413 .set_wol = aqc111_set_wol,
414 .get_msglevel = usbnet_get_msglevel,
415 .set_msglevel = usbnet_set_msglevel,
416 .get_link = ethtool_op_get_link,
417 .get_link_ksettings = aqc111_get_link_ksettings,
418 .set_link_ksettings = aqc111_set_link_ksettings
419 };
420
421 static int aqc111_change_mtu(struct net_device *net, int new_mtu)
422 {
423 struct usbnet *dev = netdev_priv(net);
424 u16 reg16 = 0;
425 u8 buf[5];
426
427 net->mtu = new_mtu;
428 dev->hard_mtu = net->mtu + net->hard_header_len;
429
430 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
431 2, &reg16);
432 if (net->mtu > 1500)
433 reg16 |= SFR_MEDIUM_JUMBO_EN;
434 else
435 reg16 &= ~SFR_MEDIUM_JUMBO_EN;
436
437 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
438 2, &reg16);
439
440 if (dev->net->mtu > 12500) {
441 memcpy(buf, &AQC111_BULKIN_SIZE[2], 5);
442 /* RX bulk configuration */
443 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,
444 5, 5, buf);
445 }
446
447 /* Set high low water level */
448 if (dev->net->mtu <= 4500)
449 reg16 = 0x0810;
450 else if (dev->net->mtu <= 9500)
451 reg16 = 0x1020;
452 else if (dev->net->mtu <= 12500)
453 reg16 = 0x1420;
454 else
455 reg16 = 0x1A20;
456
457 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW,
458 2, &reg16);
459
460 return 0;
461 }
462
463 static int aqc111_set_mac_addr(struct net_device *net, void *p)
464 {
465 struct usbnet *dev = netdev_priv(net);
466 int ret = 0;
467
468 ret = eth_mac_addr(net, p);
469 if (ret < 0)
470 return ret;
471
472 /* Set the MAC address */
473 return aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,
474 ETH_ALEN, net->dev_addr);
475 }
476
477 static int aqc111_vlan_rx_kill_vid(struct net_device *net,
478 __be16 proto, u16 vid)
479 {
480 struct usbnet *dev = netdev_priv(net);
481 u8 vlan_ctrl = 0;
482 u16 reg16 = 0;
483 u8 reg8 = 0;
484
485 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, &reg8);
486 vlan_ctrl = reg8;
487
488 /* Address */
489 reg8 = (vid / 16);
490 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, &reg8);
491 /* Data */
492 reg8 = vlan_ctrl | SFR_VLAN_CONTROL_RD;
493 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, &reg8);
494 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, &reg16);
495 reg16 &= ~(1 << (vid % 16));
496 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, &reg16);
497 reg8 = vlan_ctrl | SFR_VLAN_CONTROL_WE;
498 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, &reg8);
499
500 return 0;
501 }
502
503 static int aqc111_vlan_rx_add_vid(struct net_device *net, __be16 proto, u16 vid)
504 {
505 struct usbnet *dev = netdev_priv(net);
506 u8 vlan_ctrl = 0;
507 u16 reg16 = 0;
508 u8 reg8 = 0;
509
510 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, &reg8);
511 vlan_ctrl = reg8;
512
513 /* Address */
514 reg8 = (vid / 16);
515 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, &reg8);
516 /* Data */
517 reg8 = vlan_ctrl | SFR_VLAN_CONTROL_RD;
518 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, &reg8);
519 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, &reg16);
520 reg16 |= (1 << (vid % 16));
521 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, &reg16);
522 reg8 = vlan_ctrl | SFR_VLAN_CONTROL_WE;
523 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, &reg8);
524
525 return 0;
526 }
527
528 static void aqc111_set_rx_mode(struct net_device *net)
529 {
530 struct usbnet *dev = netdev_priv(net);
531 struct aqc111_data *aqc111_data = dev->driver_priv;
532 int mc_count = 0;
533
534 mc_count = netdev_mc_count(net);
535
536 aqc111_data->rxctl &= ~(SFR_RX_CTL_PRO | SFR_RX_CTL_AMALL |
537 SFR_RX_CTL_AM);
538
539 if (net->flags & IFF_PROMISC) {
540 aqc111_data->rxctl |= SFR_RX_CTL_PRO;
541 } else if ((net->flags & IFF_ALLMULTI) || mc_count > AQ_MAX_MCAST) {
542 aqc111_data->rxctl |= SFR_RX_CTL_AMALL;
543 } else if (!netdev_mc_empty(net)) {
544 u8 m_filter[AQ_MCAST_FILTER_SIZE] = { 0 };
545 struct netdev_hw_addr *ha = NULL;
546 u32 crc_bits = 0;
547
548 netdev_for_each_mc_addr(ha, net) {
549 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
550 m_filter[crc_bits >> 3] |= BIT(crc_bits & 7);
551 }
552
553 aqc111_write_cmd_async(dev, AQ_ACCESS_MAC,
554 SFR_MULTI_FILTER_ARRY,
555 AQ_MCAST_FILTER_SIZE,
556 AQ_MCAST_FILTER_SIZE, m_filter);
557
558 aqc111_data->rxctl |= SFR_RX_CTL_AM;
559 }
560
561 aqc111_write16_cmd_async(dev, AQ_ACCESS_MAC, SFR_RX_CTL,
562 2, &aqc111_data->rxctl);
563 }
564
565 static int aqc111_set_features(struct net_device *net,
566 netdev_features_t features)
567 {
568 struct usbnet *dev = netdev_priv(net);
569 struct aqc111_data *aqc111_data = dev->driver_priv;
570 netdev_features_t changed = net->features ^ features;
571 u16 reg16 = 0;
572 u8 reg8 = 0;
573
574 if (changed & NETIF_F_IP_CSUM) {
575 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, &reg8);
576 reg8 ^= SFR_TXCOE_TCP | SFR_TXCOE_UDP;
577 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,
578 1, 1, &reg8);
579 }
580
581 if (changed & NETIF_F_IPV6_CSUM) {
582 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, &reg8);
583 reg8 ^= SFR_TXCOE_TCPV6 | SFR_TXCOE_UDPV6;
584 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,
585 1, 1, &reg8);
586 }
587
588 if (changed & NETIF_F_RXCSUM) {
589 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, &reg8);
590 if (features & NETIF_F_RXCSUM) {
591 aqc111_data->rx_checksum = 1;
592 reg8 &= ~(SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP |
593 SFR_RXCOE_TCPV6 | SFR_RXCOE_UDPV6);
594 } else {
595 aqc111_data->rx_checksum = 0;
596 reg8 |= SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP |
597 SFR_RXCOE_TCPV6 | SFR_RXCOE_UDPV6;
598 }
599
600 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL,
601 1, 1, &reg8);
602 }
603 if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) {
604 if (features & NETIF_F_HW_VLAN_CTAG_FILTER) {
605 u16 i = 0;
606
607 for (i = 0; i < 256; i++) {
608 /* Address */
609 reg8 = i;
610 aqc111_write_cmd(dev, AQ_ACCESS_MAC,
611 SFR_VLAN_ID_ADDRESS,
612 1, 1, &reg8);
613 /* Data */
614 aqc111_write16_cmd(dev, AQ_ACCESS_MAC,
615 SFR_VLAN_ID_DATA0,
616 2, &reg16);
617 reg8 = SFR_VLAN_CONTROL_WE;
618 aqc111_write_cmd(dev, AQ_ACCESS_MAC,
619 SFR_VLAN_ID_CONTROL,
620 1, 1, &reg8);
621 }
622 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,
623 1, 1, &reg8);
624 reg8 |= SFR_VLAN_CONTROL_VFE;
625 aqc111_write_cmd(dev, AQ_ACCESS_MAC,
626 SFR_VLAN_ID_CONTROL, 1, 1, &reg8);
627 } else {
628 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,
629 1, 1, &reg8);
630 reg8 &= ~SFR_VLAN_CONTROL_VFE;
631 aqc111_write_cmd(dev, AQ_ACCESS_MAC,
632 SFR_VLAN_ID_CONTROL, 1, 1, &reg8);
633 }
634 }
635
636 return 0;
637 }
638
639 static const struct net_device_ops aqc111_netdev_ops = {
640 .ndo_open = usbnet_open,
641 .ndo_stop = usbnet_stop,
642 .ndo_start_xmit = usbnet_start_xmit,
643 .ndo_tx_timeout = usbnet_tx_timeout,
644 .ndo_get_stats64 = usbnet_get_stats64,
645 .ndo_change_mtu = aqc111_change_mtu,
646 .ndo_set_mac_address = aqc111_set_mac_addr,
647 .ndo_validate_addr = eth_validate_addr,
648 .ndo_vlan_rx_add_vid = aqc111_vlan_rx_add_vid,
649 .ndo_vlan_rx_kill_vid = aqc111_vlan_rx_kill_vid,
650 .ndo_set_rx_mode = aqc111_set_rx_mode,
651 .ndo_set_features = aqc111_set_features,
652 };
653
654 static int aqc111_read_perm_mac(struct usbnet *dev)
655 {
656 u8 buf[ETH_ALEN];
657 int ret;
658
659 ret = aqc111_read_cmd(dev, AQ_FLASH_PARAMETERS, 0, 0, ETH_ALEN, buf);
660 if (ret < 0)
661 goto out;
662
663 ether_addr_copy(dev->net->perm_addr, buf);
664
665 return 0;
666 out:
667 return ret;
668 }
669
670 static void aqc111_read_fw_version(struct usbnet *dev,
671 struct aqc111_data *aqc111_data)
672 {
673 aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MAJOR,
674 1, 1, &aqc111_data->fw_ver.major);
675 aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MINOR,
676 1, 1, &aqc111_data->fw_ver.minor);
677 aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_REV,
678 1, 1, &aqc111_data->fw_ver.rev);
679
680 if (aqc111_data->fw_ver.major & 0x80)
681 aqc111_data->fw_ver.major &= ~0x80;
682 }
683
684 static int aqc111_bind(struct usbnet *dev, struct usb_interface *intf)
685 {
686 struct usb_device *udev = interface_to_usbdev(intf);
687 enum usb_device_speed usb_speed = udev->speed;
688 struct aqc111_data *aqc111_data;
689 int ret;
690
691 /* Check if vendor configuration */
692 if (udev->actconfig->desc.bConfigurationValue != 1) {
693 usb_driver_set_configuration(udev, 1);
694 return -ENODEV;
695 }
696
697 usb_reset_configuration(dev->udev);
698
699 ret = usbnet_get_endpoints(dev, intf);
700 if (ret < 0) {
701 netdev_dbg(dev->net, "usbnet_get_endpoints failed");
702 return ret;
703 }
704
705 aqc111_data = kzalloc(sizeof(*aqc111_data), GFP_KERNEL);
706 if (!aqc111_data)
707 return -ENOMEM;
708
709 /* store aqc111_data pointer in device data field */
710 dev->driver_priv = aqc111_data;
711
712 /* Init the MAC address */
713 ret = aqc111_read_perm_mac(dev);
714 if (ret)
715 goto out;
716
717 ether_addr_copy(dev->net->dev_addr, dev->net->perm_addr);
718
719 /* Set Rx urb size */
720 dev->rx_urb_size = URB_SIZE;
721
722 /* Set TX needed headroom & tailroom */
723 dev->net->needed_headroom += sizeof(u64);
724 dev->net->needed_tailroom += sizeof(u64);
725
726 dev->net->max_mtu = 16334;
727
728 dev->net->netdev_ops = &aqc111_netdev_ops;
729 dev->net->ethtool_ops = &aqc111_ethtool_ops;
730
731 if (usb_device_no_sg_constraint(dev->udev))
732 dev->can_dma_sg = 1;
733
734 dev->net->hw_features |= AQ_SUPPORT_HW_FEATURE;
735 dev->net->features |= AQ_SUPPORT_FEATURE;
736 dev->net->vlan_features |= AQ_SUPPORT_VLAN_FEATURE;
737
738 netif_set_gso_max_size(dev->net, 65535);
739
740 aqc111_read_fw_version(dev, aqc111_data);
741 aqc111_data->autoneg = AUTONEG_ENABLE;
742 aqc111_data->advertised_speed = (usb_speed == USB_SPEED_SUPER) ?
743 SPEED_5000 : SPEED_1000;
744
745 return 0;
746
747 out:
748 kfree(aqc111_data);
749 return ret;
750 }
751
752 static void aqc111_unbind(struct usbnet *dev, struct usb_interface *intf)
753 {
754 struct aqc111_data *aqc111_data = dev->driver_priv;
755 u16 reg16;
756
757 /* Force bz */
758 reg16 = SFR_PHYPWR_RSTCTL_BZ;
759 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,
760 2, &reg16);
761 reg16 = 0;
762 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,
763 2, &reg16);
764
765 /* Power down ethernet PHY */
766 aqc111_data->phy_cfg &= ~AQ_ADV_MASK;
767 aqc111_data->phy_cfg |= AQ_LOW_POWER;
768 aqc111_data->phy_cfg &= ~AQ_PHY_POWER_EN;
769 aqc111_write32_cmd_nopm(dev, AQ_PHY_OPS, 0, 0,
770 &aqc111_data->phy_cfg);
771
772 kfree(aqc111_data);
773 }
774
775 static void aqc111_status(struct usbnet *dev, struct urb *urb)
776 {
777 struct aqc111_data *aqc111_data = dev->driver_priv;
778 u64 *event_data = NULL;
779 int link = 0;
780
781 if (urb->actual_length < sizeof(*event_data))
782 return;
783
784 event_data = urb->transfer_buffer;
785 le64_to_cpus(event_data);
786
787 if (*event_data & AQ_LS_MASK)
788 link = 1;
789 else
790 link = 0;
791
792 aqc111_data->link_speed = (*event_data & AQ_SPEED_MASK) >>
793 AQ_SPEED_SHIFT;
794 aqc111_data->link = link;
795
796 if (netif_carrier_ok(dev->net) != link)
797 usbnet_defer_kevent(dev, EVENT_LINK_RESET);
798 }
799
800 static void aqc111_configure_rx(struct usbnet *dev,
801 struct aqc111_data *aqc111_data)
802 {
803 enum usb_device_speed usb_speed = dev->udev->speed;
804 u16 link_speed = 0, usb_host = 0;
805 u8 buf[5] = { 0 };
806 u8 queue_num = 0;
807 u16 reg16 = 0;
808 u8 reg8 = 0;
809
810 buf[0] = 0x00;
811 buf[1] = 0xF8;
812 buf[2] = 0x07;
813 switch (aqc111_data->link_speed) {
814 case AQ_INT_SPEED_5G:
815 link_speed = 5000;
816 reg8 = 0x05;
817 reg16 = 0x001F;
818 break;
819 case AQ_INT_SPEED_2_5G:
820 link_speed = 2500;
821 reg16 = 0x003F;
822 break;
823 case AQ_INT_SPEED_1G:
824 link_speed = 1000;
825 reg16 = 0x009F;
826 break;
827 case AQ_INT_SPEED_100M:
828 link_speed = 100;
829 queue_num = 1;
830 reg16 = 0x063F;
831 buf[1] = 0xFB;
832 buf[2] = 0x4;
833 break;
834 }
835
836 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_INTER_PACKET_GAP_0,
837 1, 1, &reg8);
838
839 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TX_PAUSE_RESEND_T, 3, 3, buf);
840
841 switch (usb_speed) {
842 case USB_SPEED_SUPER:
843 usb_host = 3;
844 break;
845 case USB_SPEED_HIGH:
846 usb_host = 2;
847 break;
848 case USB_SPEED_FULL:
849 case USB_SPEED_LOW:
850 usb_host = 1;
851 queue_num = 0;
852 break;
853 default:
854 usb_host = 0;
855 break;
856 }
857
858 if (dev->net->mtu > 12500 && dev->net->mtu <= 16334)
859 queue_num = 2; /* For Jumbo packet 16KB */
860
861 memcpy(buf, &AQC111_BULKIN_SIZE[queue_num], 5);
862 /* RX bulk configuration */
863 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL, 5, 5, buf);
864
865 /* Set high low water level */
866 if (dev->net->mtu <= 4500)
867 reg16 = 0x0810;
868 else if (dev->net->mtu <= 9500)
869 reg16 = 0x1020;
870 else if (dev->net->mtu <= 12500)
871 reg16 = 0x1420;
872 else if (dev->net->mtu <= 16334)
873 reg16 = 0x1A20;
874
875 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW,
876 2, &reg16);
877 netdev_info(dev->net, "Link Speed %d, USB %d", link_speed, usb_host);
878 }
879
880 static void aqc111_configure_csum_offload(struct usbnet *dev)
881 {
882 u8 reg8 = 0;
883
884 if (dev->net->features & NETIF_F_RXCSUM) {
885 reg8 |= SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP |
886 SFR_RXCOE_TCPV6 | SFR_RXCOE_UDPV6;
887 }
888 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, &reg8);
889
890 reg8 = 0;
891 if (dev->net->features & NETIF_F_IP_CSUM)
892 reg8 |= SFR_TXCOE_IP | SFR_TXCOE_TCP | SFR_TXCOE_UDP;
893
894 if (dev->net->features & NETIF_F_IPV6_CSUM)
895 reg8 |= SFR_TXCOE_TCPV6 | SFR_TXCOE_UDPV6;
896
897 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, &reg8);
898 }
899
900 static int aqc111_link_reset(struct usbnet *dev)
901 {
902 struct aqc111_data *aqc111_data = dev->driver_priv;
903 u16 reg16 = 0;
904 u8 reg8 = 0;
905
906 if (aqc111_data->link == 1) { /* Link up */
907 aqc111_configure_rx(dev, aqc111_data);
908
909 /* Vlan Tag Filter */
910 reg8 = SFR_VLAN_CONTROL_VSO;
911 if (dev->net->features & NETIF_F_HW_VLAN_CTAG_FILTER)
912 reg8 |= SFR_VLAN_CONTROL_VFE;
913
914 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,
915 1, 1, &reg8);
916
917 reg8 = 0x0;
918 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL,
919 1, 1, &reg8);
920
921 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMTX_DMA_CONTROL,
922 1, 1, &reg8);
923
924 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ARC_CTRL, 1, 1, &reg8);
925
926 reg16 = SFR_RX_CTL_IPE | SFR_RX_CTL_AB;
927 aqc111_data->rxctl = reg16;
928 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);
929
930 reg8 = SFR_RX_PATH_READY;
931 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,
932 1, 1, &reg8);
933
934 reg8 = SFR_BULK_OUT_EFF_EN;
935 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,
936 1, 1, &reg8);
937
938 reg16 = 0;
939 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
940 2, &reg16);
941
942 reg16 = SFR_MEDIUM_XGMIIMODE | SFR_MEDIUM_FULL_DUPLEX;
943 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
944 2, &reg16);
945
946 aqc111_configure_csum_offload(dev);
947
948 aqc111_set_rx_mode(dev->net);
949
950 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
951 2, &reg16);
952
953 if (dev->net->mtu > 1500)
954 reg16 |= SFR_MEDIUM_JUMBO_EN;
955
956 reg16 |= SFR_MEDIUM_RECEIVE_EN | SFR_MEDIUM_RXFLOW_CTRLEN |
957 SFR_MEDIUM_TXFLOW_CTRLEN;
958 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
959 2, &reg16);
960
961 aqc111_data->rxctl |= SFR_RX_CTL_START;
962 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL,
963 2, &aqc111_data->rxctl);
964
965 netif_carrier_on(dev->net);
966 } else {
967 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
968 2, &reg16);
969 reg16 &= ~SFR_MEDIUM_RECEIVE_EN;
970 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
971 2, &reg16);
972
973 aqc111_data->rxctl &= ~SFR_RX_CTL_START;
974 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL,
975 2, &aqc111_data->rxctl);
976
977 reg8 = SFR_BULK_OUT_FLUSH_EN | SFR_BULK_OUT_EFF_EN;
978 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,
979 1, 1, &reg8);
980 reg8 = SFR_BULK_OUT_EFF_EN;
981 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,
982 1, 1, &reg8);
983
984 netif_carrier_off(dev->net);
985 }
986 return 0;
987 }
988
989 static int aqc111_reset(struct usbnet *dev)
990 {
991 struct aqc111_data *aqc111_data = dev->driver_priv;
992 u8 reg8 = 0;
993
994 dev->rx_urb_size = URB_SIZE;
995
996 if (usb_device_no_sg_constraint(dev->udev))
997 dev->can_dma_sg = 1;
998
999 dev->net->hw_features |= AQ_SUPPORT_HW_FEATURE;
1000 dev->net->features |= AQ_SUPPORT_FEATURE;
1001 dev->net->vlan_features |= AQ_SUPPORT_VLAN_FEATURE;
1002
1003 /* Power up ethernet PHY */
1004 aqc111_data->phy_cfg = AQ_PHY_POWER_EN;
1005 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0,
1006 &aqc111_data->phy_cfg);
1007
1008 /* Set the MAC address */
1009 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,
1010 ETH_ALEN, dev->net->dev_addr);
1011
1012 reg8 = 0xFF;
1013 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK, 1, 1, &reg8);
1014
1015 reg8 = 0x0;
1016 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_SWP_CTRL, 1, 1, &reg8);
1017
1018 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_MONITOR_MODE, 1, 1, &reg8);
1019 reg8 &= ~(SFR_MONITOR_MODE_EPHYRW | SFR_MONITOR_MODE_RWLC |
1020 SFR_MONITOR_MODE_RWMP | SFR_MONITOR_MODE_RWWF |
1021 SFR_MONITOR_MODE_RW_FLAG);
1022 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_MONITOR_MODE, 1, 1, &reg8);
1023
1024 netif_carrier_off(dev->net);
1025
1026 /* Phy advertise */
1027 aqc111_set_phy_speed(dev, aqc111_data->autoneg,
1028 aqc111_data->advertised_speed);
1029
1030 return 0;
1031 }
1032
1033 static int aqc111_stop(struct usbnet *dev)
1034 {
1035 struct aqc111_data *aqc111_data = dev->driver_priv;
1036 u16 reg16 = 0;
1037
1038 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
1039 2, &reg16);
1040 reg16 &= ~SFR_MEDIUM_RECEIVE_EN;
1041 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
1042 2, &reg16);
1043 reg16 = 0;
1044 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);
1045
1046 /* Put PHY to low power*/
1047 aqc111_data->phy_cfg |= AQ_LOW_POWER;
1048 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0,
1049 &aqc111_data->phy_cfg);
1050
1051 netif_carrier_off(dev->net);
1052
1053 return 0;
1054 }
1055
1056 static void aqc111_rx_checksum(struct sk_buff *skb, u64 pkt_desc)
1057 {
1058 u32 pkt_type = 0;
1059
1060 skb->ip_summed = CHECKSUM_NONE;
1061 /* checksum error bit is set */
1062 if (pkt_desc & AQ_RX_PD_L4_ERR || pkt_desc & AQ_RX_PD_L3_ERR)
1063 return;
1064
1065 pkt_type = pkt_desc & AQ_RX_PD_L4_TYPE_MASK;
1066 /* It must be a TCP or UDP packet with a valid checksum */
1067 if (pkt_type == AQ_RX_PD_L4_TCP || pkt_type == AQ_RX_PD_L4_UDP)
1068 skb->ip_summed = CHECKSUM_UNNECESSARY;
1069 }
1070
1071 static int aqc111_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1072 {
1073 struct aqc111_data *aqc111_data = dev->driver_priv;
1074 struct sk_buff *new_skb = NULL;
1075 u32 pkt_total_offset = 0;
1076 u64 *pkt_desc_ptr = NULL;
1077 u32 start_of_descs = 0;
1078 u32 desc_offset = 0; /*RX Header Offset*/
1079 u16 pkt_count = 0;
1080 u64 desc_hdr = 0;
1081 u16 vlan_tag = 0;
1082 u32 skb_len = 0;
1083
1084 if (!skb)
1085 goto err;
1086
1087 if (skb->len == 0)
1088 goto err;
1089
1090 skb_len = skb->len;
1091 /* RX Descriptor Header */
1092 skb_trim(skb, skb->len - sizeof(desc_hdr));
1093 desc_hdr = le64_to_cpup((u64 *)skb_tail_pointer(skb));
1094
1095 /* Check these packets */
1096 desc_offset = (desc_hdr & AQ_RX_DH_DESC_OFFSET_MASK) >>
1097 AQ_RX_DH_DESC_OFFSET_SHIFT;
1098 pkt_count = desc_hdr & AQ_RX_DH_PKT_CNT_MASK;
1099 start_of_descs = skb_len - ((pkt_count + 1) * sizeof(desc_hdr));
1100
1101 /* self check descs position */
1102 if (start_of_descs != desc_offset)
1103 goto err;
1104
1105 /* self check desc_offset from header*/
1106 if (desc_offset >= skb_len)
1107 goto err;
1108
1109 if (pkt_count == 0)
1110 goto err;
1111
1112 /* Get the first RX packet descriptor */
1113 pkt_desc_ptr = (u64 *)(skb->data + desc_offset);
1114
1115 while (pkt_count--) {
1116 u64 pkt_desc = le64_to_cpup(pkt_desc_ptr);
1117 u32 pkt_len_with_padd = 0;
1118 u32 pkt_len = 0;
1119
1120 pkt_len = (u32)((pkt_desc & AQ_RX_PD_LEN_MASK) >>
1121 AQ_RX_PD_LEN_SHIFT);
1122 pkt_len_with_padd = ((pkt_len + 7) & 0x7FFF8);
1123
1124 pkt_total_offset += pkt_len_with_padd;
1125 if (pkt_total_offset > desc_offset ||
1126 (pkt_count == 0 && pkt_total_offset != desc_offset)) {
1127 goto err;
1128 }
1129
1130 if (pkt_desc & AQ_RX_PD_DROP ||
1131 !(pkt_desc & AQ_RX_PD_RX_OK) ||
1132 pkt_len > (dev->hard_mtu + AQ_RX_HW_PAD)) {
1133 skb_pull(skb, pkt_len_with_padd);
1134 /* Next RX Packet Descriptor */
1135 pkt_desc_ptr++;
1136 continue;
1137 }
1138
1139 /* Clone SKB */
1140 new_skb = skb_clone(skb, GFP_ATOMIC);
1141
1142 if (!new_skb)
1143 goto err;
1144
1145 new_skb->len = pkt_len;
1146 skb_pull(new_skb, AQ_RX_HW_PAD);
1147 skb_set_tail_pointer(new_skb, new_skb->len);
1148
1149 new_skb->truesize = SKB_TRUESIZE(new_skb->len);
1150 if (aqc111_data->rx_checksum)
1151 aqc111_rx_checksum(new_skb, pkt_desc);
1152
1153 if (pkt_desc & AQ_RX_PD_VLAN) {
1154 vlan_tag = pkt_desc >> AQ_RX_PD_VLAN_SHIFT;
1155 __vlan_hwaccel_put_tag(new_skb, htons(ETH_P_8021Q),
1156 vlan_tag & VLAN_VID_MASK);
1157 }
1158
1159 usbnet_skb_return(dev, new_skb);
1160 if (pkt_count == 0)
1161 break;
1162
1163 skb_pull(skb, pkt_len_with_padd);
1164
1165 /* Next RX Packet Header */
1166 pkt_desc_ptr++;
1167
1168 new_skb = NULL;
1169 }
1170
1171 return 1;
1172
1173 err:
1174 return 0;
1175 }
1176
1177 static struct sk_buff *aqc111_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
1178 gfp_t flags)
1179 {
1180 int frame_size = dev->maxpacket;
1181 struct sk_buff *new_skb = NULL;
1182 u64 *tx_desc_ptr = NULL;
1183 int padding_size = 0;
1184 int headroom = 0;
1185 int tailroom = 0;
1186 u64 tx_desc = 0;
1187 u16 tci = 0;
1188
1189 /*Length of actual data*/
1190 tx_desc |= skb->len & AQ_TX_DESC_LEN_MASK;
1191
1192 /* TSO MSS */
1193 tx_desc |= ((u64)(skb_shinfo(skb)->gso_size & AQ_TX_DESC_MSS_MASK)) <<
1194 AQ_TX_DESC_MSS_SHIFT;
1195
1196 headroom = (skb->len + sizeof(tx_desc)) % 8;
1197 if (headroom != 0)
1198 padding_size = 8 - headroom;
1199
1200 if (((skb->len + sizeof(tx_desc) + padding_size) % frame_size) == 0) {
1201 padding_size += 8;
1202 tx_desc |= AQ_TX_DESC_DROP_PADD;
1203 }
1204
1205 /* Vlan Tag */
1206 if (vlan_get_tag(skb, &tci) >= 0) {
1207 tx_desc |= AQ_TX_DESC_VLAN;
1208 tx_desc |= ((u64)tci & AQ_TX_DESC_VLAN_MASK) <<
1209 AQ_TX_DESC_VLAN_SHIFT;
1210 }
1211
1212 if (!dev->can_dma_sg && (dev->net->features & NETIF_F_SG) &&
1213 skb_linearize(skb))
1214 return NULL;
1215
1216 headroom = skb_headroom(skb);
1217 tailroom = skb_tailroom(skb);
1218
1219 if (!(headroom >= sizeof(tx_desc) && tailroom >= padding_size)) {
1220 new_skb = skb_copy_expand(skb, sizeof(tx_desc),
1221 padding_size, flags);
1222 dev_kfree_skb_any(skb);
1223 skb = new_skb;
1224 if (!skb)
1225 return NULL;
1226 }
1227 if (padding_size != 0)
1228 skb_put_zero(skb, padding_size);
1229 /* Copy TX header */
1230 tx_desc_ptr = skb_push(skb, sizeof(tx_desc));
1231 *tx_desc_ptr = cpu_to_le64(tx_desc);
1232
1233 usbnet_set_skb_tx_stats(skb, 1, 0);
1234
1235 return skb;
1236 }
1237
1238 static const struct driver_info aqc111_info = {
1239 .description = "Aquantia AQtion USB to 5GbE Controller",
1240 .bind = aqc111_bind,
1241 .unbind = aqc111_unbind,
1242 .status = aqc111_status,
1243 .link_reset = aqc111_link_reset,
1244 .reset = aqc111_reset,
1245 .stop = aqc111_stop,
1246 .flags = FLAG_ETHER | FLAG_FRAMING_AX |
1247 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET,
1248 .rx_fixup = aqc111_rx_fixup,
1249 .tx_fixup = aqc111_tx_fixup,
1250 };
1251
1252 #define ASIX111_DESC \
1253 "ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter"
1254
1255 static const struct driver_info asix111_info = {
1256 .description = ASIX111_DESC,
1257 .bind = aqc111_bind,
1258 .unbind = aqc111_unbind,
1259 .status = aqc111_status,
1260 .link_reset = aqc111_link_reset,
1261 .reset = aqc111_reset,
1262 .stop = aqc111_stop,
1263 .flags = FLAG_ETHER | FLAG_FRAMING_AX |
1264 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET,
1265 .rx_fixup = aqc111_rx_fixup,
1266 .tx_fixup = aqc111_tx_fixup,
1267 };
1268
1269 #undef ASIX111_DESC
1270
1271 #define ASIX112_DESC \
1272 "ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter"
1273
1274 static const struct driver_info asix112_info = {
1275 .description = ASIX112_DESC,
1276 .bind = aqc111_bind,
1277 .unbind = aqc111_unbind,
1278 .status = aqc111_status,
1279 .link_reset = aqc111_link_reset,
1280 .reset = aqc111_reset,
1281 .stop = aqc111_stop,
1282 .flags = FLAG_ETHER | FLAG_FRAMING_AX |
1283 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET,
1284 .rx_fixup = aqc111_rx_fixup,
1285 .tx_fixup = aqc111_tx_fixup,
1286 };
1287
1288 #undef ASIX112_DESC
1289
1290 static const struct driver_info trendnet_info = {
1291 .description = "USB-C 3.1 to 5GBASE-T Ethernet Adapter",
1292 .bind = aqc111_bind,
1293 .unbind = aqc111_unbind,
1294 .status = aqc111_status,
1295 .link_reset = aqc111_link_reset,
1296 .reset = aqc111_reset,
1297 .stop = aqc111_stop,
1298 .flags = FLAG_ETHER | FLAG_FRAMING_AX |
1299 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET,
1300 .rx_fixup = aqc111_rx_fixup,
1301 .tx_fixup = aqc111_tx_fixup,
1302 };
1303
1304 static const struct driver_info qnap_info = {
1305 .description = "QNAP QNA-UC5G1T USB to 5GbE Adapter",
1306 .bind = aqc111_bind,
1307 .unbind = aqc111_unbind,
1308 .status = aqc111_status,
1309 .link_reset = aqc111_link_reset,
1310 .reset = aqc111_reset,
1311 .stop = aqc111_stop,
1312 .flags = FLAG_ETHER | FLAG_FRAMING_AX |
1313 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET,
1314 .rx_fixup = aqc111_rx_fixup,
1315 .tx_fixup = aqc111_tx_fixup,
1316 };
1317
1318 static int aqc111_suspend(struct usb_interface *intf, pm_message_t message)
1319 {
1320 struct usbnet *dev = usb_get_intfdata(intf);
1321 struct aqc111_data *aqc111_data = dev->driver_priv;
1322 u16 temp_rx_ctrl = 0x00;
1323 u16 reg16;
1324 u8 reg8;
1325
1326 usbnet_suspend(intf, message);
1327
1328 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);
1329 temp_rx_ctrl = reg16;
1330 /* Stop RX operations*/
1331 reg16 &= ~SFR_RX_CTL_START;
1332 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);
1333 /* Force bz */
1334 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,
1335 2, &reg16);
1336 reg16 |= SFR_PHYPWR_RSTCTL_BZ;
1337 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,
1338 2, &reg16);
1339
1340 reg8 = SFR_BULK_OUT_EFF_EN;
1341 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,
1342 1, 1, &reg8);
1343
1344 temp_rx_ctrl &= ~(SFR_RX_CTL_START | SFR_RX_CTL_RF_WAK |
1345 SFR_RX_CTL_AP | SFR_RX_CTL_AM);
1346 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL,
1347 2, &temp_rx_ctrl);
1348
1349 reg8 = 0x00;
1350 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,
1351 1, 1, &reg8);
1352
1353 if (aqc111_data->wol_flags) {
1354 struct aqc111_wol_cfg wol_cfg;
1355
1356 memset(&wol_cfg, 0, sizeof(struct aqc111_wol_cfg));
1357
1358 aqc111_data->phy_cfg |= AQ_WOL;
1359 ether_addr_copy(wol_cfg.hw_addr, dev->net->dev_addr);
1360 wol_cfg.flags = aqc111_data->wol_flags;
1361
1362 temp_rx_ctrl |= (SFR_RX_CTL_AB | SFR_RX_CTL_START);
1363 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL,
1364 2, &temp_rx_ctrl);
1365 reg8 = 0x00;
1366 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK,
1367 1, 1, &reg8);
1368 reg8 = SFR_BMRX_DMA_EN;
1369 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL,
1370 1, 1, &reg8);
1371 reg8 = SFR_RX_PATH_READY;
1372 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,
1373 1, 1, &reg8);
1374 reg8 = 0x07;
1375 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,
1376 1, 1, &reg8);
1377 reg8 = 0x00;
1378 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC,
1379 SFR_RX_BULKIN_QTIMR_LOW, 1, 1, &reg8);
1380 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC,
1381 SFR_RX_BULKIN_QTIMR_HIGH, 1, 1, &reg8);
1382 reg8 = 0xFF;
1383 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QSIZE,
1384 1, 1, &reg8);
1385 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QIFG,
1386 1, 1, &reg8);
1387
1388 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC,
1389 SFR_MEDIUM_STATUS_MODE, 2, &reg16);
1390 reg16 |= SFR_MEDIUM_RECEIVE_EN;
1391 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC,
1392 SFR_MEDIUM_STATUS_MODE, 2, &reg16);
1393
1394 aqc111_write_cmd(dev, AQ_WOL_CFG, 0, 0,
1395 WOL_CFG_SIZE, &wol_cfg);
1396 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0,
1397 &aqc111_data->phy_cfg);
1398 } else {
1399 aqc111_data->phy_cfg |= AQ_LOW_POWER;
1400 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0,
1401 &aqc111_data->phy_cfg);
1402
1403 /* Disable RX path */
1404 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC,
1405 SFR_MEDIUM_STATUS_MODE, 2, &reg16);
1406 reg16 &= ~SFR_MEDIUM_RECEIVE_EN;
1407 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC,
1408 SFR_MEDIUM_STATUS_MODE, 2, &reg16);
1409 }
1410
1411 return 0;
1412 }
1413
1414 static int aqc111_resume(struct usb_interface *intf)
1415 {
1416 struct usbnet *dev = usb_get_intfdata(intf);
1417 struct aqc111_data *aqc111_data = dev->driver_priv;
1418 u16 reg16;
1419 u8 reg8;
1420
1421 netif_carrier_off(dev->net);
1422
1423 /* Power up ethernet PHY */
1424 aqc111_data->phy_cfg |= AQ_PHY_POWER_EN;
1425 aqc111_data->phy_cfg &= ~AQ_LOW_POWER;
1426 aqc111_data->phy_cfg &= ~AQ_WOL;
1427
1428 reg8 = 0xFF;
1429 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK,
1430 1, 1, &reg8);
1431 /* Configure RX control register => start operation */
1432 reg16 = aqc111_data->rxctl;
1433 reg16 &= ~SFR_RX_CTL_START;
1434 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);
1435
1436 reg16 |= SFR_RX_CTL_START;
1437 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, &reg16);
1438
1439 aqc111_set_phy_speed(dev, aqc111_data->autoneg,
1440 aqc111_data->advertised_speed);
1441
1442 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
1443 2, &reg16);
1444 reg16 |= SFR_MEDIUM_RECEIVE_EN;
1445 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,
1446 2, &reg16);
1447 reg8 = SFR_RX_PATH_READY;
1448 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,
1449 1, 1, &reg8);
1450 reg8 = 0x0;
1451 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, 1, 1, &reg8);
1452
1453 return usbnet_resume(intf);
1454 }
1455
1456 #define AQC111_USB_ETH_DEV(vid, pid, table) \
1457 USB_DEVICE_INTERFACE_CLASS((vid), (pid), USB_CLASS_VENDOR_SPEC), \
1458 .driver_info = (unsigned long)&(table) \
1459 }, \
1460 { \
1461 USB_DEVICE_AND_INTERFACE_INFO((vid), (pid), \
1462 USB_CLASS_COMM, \
1463 USB_CDC_SUBCLASS_ETHERNET, \
1464 USB_CDC_PROTO_NONE), \
1465 .driver_info = (unsigned long)&(table),
1466
1467 static const struct usb_device_id products[] = {
1468 {AQC111_USB_ETH_DEV(0x2eca, 0xc101, aqc111_info)},
1469 {AQC111_USB_ETH_DEV(0x0b95, 0x2790, asix111_info)},
1470 {AQC111_USB_ETH_DEV(0x0b95, 0x2791, asix112_info)},
1471 {AQC111_USB_ETH_DEV(0x20f4, 0xe05a, trendnet_info)},
1472 {AQC111_USB_ETH_DEV(0x1c04, 0x0015, qnap_info)},
1473 { },/* END */
1474 };
1475 MODULE_DEVICE_TABLE(usb, products);
1476
1477 static struct usb_driver aq_driver = {
1478 .name = "aqc111",
1479 .id_table = products,
1480 .probe = usbnet_probe,
1481 .suspend = aqc111_suspend,
1482 .resume = aqc111_resume,
1483 .disconnect = usbnet_disconnect,
1484 };
1485
1486 module_usb_driver(aq_driver);
1487
1488 MODULE_DESCRIPTION("Aquantia AQtion USB to 5/2.5GbE Controllers");
1489 MODULE_LICENSE("GPL");
Linux with added FPC-III support