1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices
4 *
5 * Copyright (C) 2011-2013 ASIX
6 */
7
8#include <linux/module.h>
9#include <linux/etherdevice.h>
10#include <linux/mii.h>
11#include <linux/usb.h>
12#include <linux/crc32.h>
13#include <linux/usb/usbnet.h>
14#include <uapi/linux/mdio.h>
15#include <linux/mdio.h>
16
17#define AX88179_PHY_ID				0x03
18#define AX_EEPROM_LEN				0x100
19#define AX88179_EEPROM_MAGIC			0x17900b95
20#define AX_MCAST_FLTSIZE			8
21#define AX_MAX_MCAST				64
22#define AX_INT_PPLS_LINK			((u32)BIT(16))
23#define AX_RXHDR_L4_TYPE_MASK			0x1c
24#define AX_RXHDR_L4_TYPE_UDP			4
25#define AX_RXHDR_L4_TYPE_TCP			16
26#define AX_RXHDR_L3CSUM_ERR			2
27#define AX_RXHDR_L4CSUM_ERR			1
28#define AX_RXHDR_CRC_ERR			((u32)BIT(29))
29#define AX_RXHDR_DROP_ERR			((u32)BIT(31))
30#define AX_ACCESS_MAC				0x01
31#define AX_ACCESS_PHY				0x02
32#define AX_ACCESS_EEPROM			0x04
33#define AX_ACCESS_EFUS				0x05
34#define AX_RELOAD_EEPROM_EFUSE			0x06
35#define AX_PAUSE_WATERLVL_HIGH			0x54
36#define AX_PAUSE_WATERLVL_LOW			0x55
37
38#define PHYSICAL_LINK_STATUS			0x02
39	#define	AX_USB_SS		0x04
40	#define	AX_USB_HS		0x02
41
42#define GENERAL_STATUS				0x03
43/* Check AX88179 version. UA1:Bit2 = 0,  UA2:Bit2 = 1 */
44	#define	AX_SECLD		0x04
45
46#define AX_SROM_ADDR				0x07
47#define AX_SROM_CMD				0x0a
48	#define EEP_RD			0x04
49	#define EEP_BUSY		0x10
50
51#define AX_SROM_DATA_LOW			0x08
52#define AX_SROM_DATA_HIGH			0x09
53
54#define AX_RX_CTL				0x0b
55	#define AX_RX_CTL_DROPCRCERR	0x0100
56	#define AX_RX_CTL_IPE		0x0200
57	#define AX_RX_CTL_START		0x0080
58	#define AX_RX_CTL_AP		0x0020
59	#define AX_RX_CTL_AM		0x0010
60	#define AX_RX_CTL_AB		0x0008
61	#define AX_RX_CTL_AMALL		0x0002
62	#define AX_RX_CTL_PRO		0x0001
63	#define AX_RX_CTL_STOP		0x0000
64
65#define AX_NODE_ID				0x10
66#define AX_MULFLTARY				0x16
67
68#define AX_MEDIUM_STATUS_MODE			0x22
69	#define AX_MEDIUM_GIGAMODE	0x01
70	#define AX_MEDIUM_FULL_DUPLEX	0x02
71	#define AX_MEDIUM_EN_125MHZ	0x08
72	#define AX_MEDIUM_RXFLOW_CTRLEN	0x10
73	#define AX_MEDIUM_TXFLOW_CTRLEN	0x20
74	#define AX_MEDIUM_RECEIVE_EN	0x100
75	#define AX_MEDIUM_PS		0x200
76	#define AX_MEDIUM_JUMBO_EN	0x8040
77
78#define AX_MONITOR_MOD				0x24
79	#define AX_MONITOR_MODE_RWLC	0x02
80	#define AX_MONITOR_MODE_RWMP	0x04
81	#define AX_MONITOR_MODE_PMEPOL	0x20
82	#define AX_MONITOR_MODE_PMETYPE	0x40
83
84#define AX_GPIO_CTRL				0x25
85	#define AX_GPIO_CTRL_GPIO3EN	0x80
86	#define AX_GPIO_CTRL_GPIO2EN	0x40
87	#define AX_GPIO_CTRL_GPIO1EN	0x20
88
89#define AX_PHYPWR_RSTCTL			0x26
90	#define AX_PHYPWR_RSTCTL_BZ	0x0010
91	#define AX_PHYPWR_RSTCTL_IPRL	0x0020
92	#define AX_PHYPWR_RSTCTL_AT	0x1000
93
94#define AX_RX_BULKIN_QCTRL			0x2e
95#define AX_CLK_SELECT				0x33
96	#define AX_CLK_SELECT_BCS	0x01
97	#define AX_CLK_SELECT_ACS	0x02
98	#define AX_CLK_SELECT_ULR	0x08
99
100#define AX_RXCOE_CTL				0x34
101	#define AX_RXCOE_IP		0x01
102	#define AX_RXCOE_TCP		0x02
103	#define AX_RXCOE_UDP		0x04
104	#define AX_RXCOE_TCPV6		0x20
105	#define AX_RXCOE_UDPV6		0x40
106
107#define AX_TXCOE_CTL				0x35
108	#define AX_TXCOE_IP		0x01
109	#define AX_TXCOE_TCP		0x02
110	#define AX_TXCOE_UDP		0x04
111	#define AX_TXCOE_TCPV6		0x20
112	#define AX_TXCOE_UDPV6		0x40
113
114#define AX_LEDCTRL				0x73
115
116#define GMII_PHY_PHYSR				0x11
117	#define GMII_PHY_PHYSR_SMASK	0xc000
118	#define GMII_PHY_PHYSR_GIGA	0x8000
119	#define GMII_PHY_PHYSR_100	0x4000
120	#define GMII_PHY_PHYSR_FULL	0x2000
121	#define GMII_PHY_PHYSR_LINK	0x400
122
123#define GMII_LED_ACT				0x1a
124	#define	GMII_LED_ACTIVE_MASK	0xff8f
125	#define	GMII_LED0_ACTIVE	BIT(4)
126	#define	GMII_LED1_ACTIVE	BIT(5)
127	#define	GMII_LED2_ACTIVE	BIT(6)
128
129#define GMII_LED_LINK				0x1c
130	#define	GMII_LED_LINK_MASK	0xf888
131	#define	GMII_LED0_LINK_10	BIT(0)
132	#define	GMII_LED0_LINK_100	BIT(1)
133	#define	GMII_LED0_LINK_1000	BIT(2)
134	#define	GMII_LED1_LINK_10	BIT(4)
135	#define	GMII_LED1_LINK_100	BIT(5)
136	#define	GMII_LED1_LINK_1000	BIT(6)
137	#define	GMII_LED2_LINK_10	BIT(8)
138	#define	GMII_LED2_LINK_100	BIT(9)
139	#define	GMII_LED2_LINK_1000	BIT(10)
140	#define	LED0_ACTIVE		BIT(0)
141	#define	LED0_LINK_10		BIT(1)
142	#define	LED0_LINK_100		BIT(2)
143	#define	LED0_LINK_1000		BIT(3)
144	#define	LED0_FD			BIT(4)
145	#define	LED0_USB3_MASK		0x001f
146	#define	LED1_ACTIVE		BIT(5)
147	#define	LED1_LINK_10		BIT(6)
148	#define	LED1_LINK_100		BIT(7)
149	#define	LED1_LINK_1000		BIT(8)
150	#define	LED1_FD			BIT(9)
151	#define	LED1_USB3_MASK		0x03e0
152	#define	LED2_ACTIVE		BIT(10)
153	#define	LED2_LINK_1000		BIT(13)
154	#define	LED2_LINK_100		BIT(12)
155	#define	LED2_LINK_10		BIT(11)
156	#define	LED2_FD			BIT(14)
157	#define	LED_VALID		BIT(15)
158	#define	LED2_USB3_MASK		0x7c00
159
160#define GMII_PHYPAGE				0x1e
161#define GMII_PHY_PAGE_SELECT			0x1f
162	#define GMII_PHY_PGSEL_EXT	0x0007
163	#define GMII_PHY_PGSEL_PAGE0	0x0000
164	#define GMII_PHY_PGSEL_PAGE3	0x0003
165	#define GMII_PHY_PGSEL_PAGE5	0x0005
166
167struct ax88179_data {
168	u8  eee_enabled;
169	u8  eee_active;
170	u16 rxctl;
171	u16 reserved;
172};
173
174struct ax88179_int_data {
175	__le32 intdata1;
176	__le32 intdata2;
177};
178
179static const struct {
180	unsigned char ctrl, timer_l, timer_h, size, ifg;
181} AX88179_BULKIN_SIZE[] =	{
182	{7, 0x4f, 0,	0x12, 0xff},
183	{7, 0x20, 3,	0x16, 0xff},
184	{7, 0xae, 7,	0x18, 0xff},
185	{7, 0xcc, 0x4c, 0x18, 8},
186};
187
188static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
189			      u16 size, void *data, int in_pm)
190{
191	int ret;
192	int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
193
194	BUG_ON(!dev);
195
196	if (!in_pm)
197		fn = usbnet_read_cmd;
198	else
199		fn = usbnet_read_cmd_nopm;
200
201	ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
202		 value, index, data, size);
203
204	if (unlikely(ret < 0))
205		netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
206			    index, ret);
207
208	return ret;
209}
210
211static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
212			       u16 size, void *data, int in_pm)
213{
214	int ret;
215	int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
216
217	BUG_ON(!dev);
218
219	if (!in_pm)
220		fn = usbnet_write_cmd;
221	else
222		fn = usbnet_write_cmd_nopm;
223
224	ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
225		 value, index, data, size);
226
227	if (unlikely(ret < 0))
228		netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
229			    index, ret);
230
231	return ret;
232}
233
234static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
235				    u16 index, u16 size, void *data)
236{
237	u16 buf;
238
239	if (2 == size) {
240		buf = *((u16 *)data);
241		cpu_to_le16s(&buf);
242		usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
243				       USB_RECIP_DEVICE, value, index, &buf,
244				       size);
245	} else {
246		usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
247				       USB_RECIP_DEVICE, value, index, data,
248				       size);
249	}
250}
251
252static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
253				 u16 index, u16 size, void *data)
254{
255	int ret;
256
257	if (2 == size) {
258		u16 buf;
259		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
260		le16_to_cpus(&buf);
261		*((u16 *)data) = buf;
262	} else if (4 == size) {
263		u32 buf;
264		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
265		le32_to_cpus(&buf);
266		*((u32 *)data) = buf;
267	} else {
268		ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1);
269	}
270
271	return ret;
272}
273
274static int ax88179_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
275				  u16 index, u16 size, void *data)
276{
277	int ret;
278
279	if (2 == size) {
280		u16 buf;
281		buf = *((u16 *)data);
282		cpu_to_le16s(&buf);
283		ret = __ax88179_write_cmd(dev, cmd, value, index,
284					  size, &buf, 1);
285	} else {
286		ret = __ax88179_write_cmd(dev, cmd, value, index,
287					  size, data, 1);
288	}
289
290	return ret;
291}
292
293static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
294			    u16 size, void *data)
295{
296	int ret;
297
298	if (2 == size) {
299		u16 buf = 0;
300		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
301		le16_to_cpus(&buf);
302		*((u16 *)data) = buf;
303	} else if (4 == size) {
304		u32 buf = 0;
305		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
306		le32_to_cpus(&buf);
307		*((u32 *)data) = buf;
308	} else {
309		ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 0);
310	}
311
312	return ret;
313}
314
315static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
316			     u16 size, void *data)
317{
318	int ret;
319
320	if (2 == size) {
321		u16 buf;
322		buf = *((u16 *)data);
323		cpu_to_le16s(&buf);
324		ret = __ax88179_write_cmd(dev, cmd, value, index,
325					  size, &buf, 0);
326	} else {
327		ret = __ax88179_write_cmd(dev, cmd, value, index,
328					  size, data, 0);
329	}
330
331	return ret;
332}
333
334static void ax88179_status(struct usbnet *dev, struct urb *urb)
335{
336	struct ax88179_int_data *event;
337	u32 link;
338
339	if (urb->actual_length < 8)
340		return;
341
342	event = urb->transfer_buffer;
343	le32_to_cpus((void *)&event->intdata1);
344
345	link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
346
347	if (netif_carrier_ok(dev->net) != link) {
348		usbnet_link_change(dev, link, 1);
349		netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
350	}
351}
352
353static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
354{
355	struct usbnet *dev = netdev_priv(netdev);
356	u16 res;
357
358	ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
359	return res;
360}
361
362static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
363			       int val)
364{
365	struct usbnet *dev = netdev_priv(netdev);
366	u16 res = (u16) val;
367
368	ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
369}
370
371static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
372					   u16 devad)
373{
374	u16 tmp16;
375	int ret;
376
377	tmp16 = devad;
378	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
379				MII_MMD_CTRL, 2, &tmp16);
380
381	tmp16 = prtad;
382	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
383				MII_MMD_DATA, 2, &tmp16);
384
385	tmp16 = devad | MII_MMD_CTRL_NOINCR;
386	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
387				MII_MMD_CTRL, 2, &tmp16);
388
389	return ret;
390}
391
392static int
393ax88179_phy_read_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad)
394{
395	int ret;
396	u16 tmp16;
397
398	ax88179_phy_mmd_indirect(dev, prtad, devad);
399
400	ret = ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
401			       MII_MMD_DATA, 2, &tmp16);
402	if (ret < 0)
403		return ret;
404
405	return tmp16;
406}
407
408static int
409ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad,
410			       u16 data)
411{
412	int ret;
413
414	ax88179_phy_mmd_indirect(dev, prtad, devad);
415
416	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
417				MII_MMD_DATA, 2, &data);
418
419	if (ret < 0)
420		return ret;
421
422	return 0;
423}
424
425static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
426{
427	struct usbnet *dev = usb_get_intfdata(intf);
428	u16 tmp16;
429	u8 tmp8;
430
431	usbnet_suspend(intf, message);
432
433	/* Disable RX path */
434	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
435			      2, 2, &tmp16);
436	tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
437	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
438			       2, 2, &tmp16);
439
440	/* Force bulk-in zero length */
441	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
442			      2, 2, &tmp16);
443
444	tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL;
445	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
446			       2, 2, &tmp16);
447
448	/* change clock */
449	tmp8 = 0;
450	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
451
452	/* Configure RX control register => stop operation */
453	tmp16 = AX_RX_CTL_STOP;
454	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
455
456	return 0;
457}
458
459/* This function is used to enable the autodetach function. */
460/* This function is determined by offset 0x43 of EEPROM */
461static int ax88179_auto_detach(struct usbnet *dev, int in_pm)
462{
463	u16 tmp16;
464	u8 tmp8;
465	int (*fnr)(struct usbnet *, u8, u16, u16, u16, void *);
466	int (*fnw)(struct usbnet *, u8, u16, u16, u16, void *);
467
468	if (!in_pm) {
469		fnr = ax88179_read_cmd;
470		fnw = ax88179_write_cmd;
471	} else {
472		fnr = ax88179_read_cmd_nopm;
473		fnw = ax88179_write_cmd_nopm;
474	}
475
476	if (fnr(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0)
477		return 0;
478
479	if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100)))
480		return 0;
481
482	/* Enable Auto Detach bit */
483	tmp8 = 0;
484	fnr(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
485	tmp8 |= AX_CLK_SELECT_ULR;
486	fnw(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
487
488	fnr(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
489	tmp16 |= AX_PHYPWR_RSTCTL_AT;
490	fnw(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
491
492	return 0;
493}
494
495static int ax88179_resume(struct usb_interface *intf)
496{
497	struct usbnet *dev = usb_get_intfdata(intf);
498	u16 tmp16;
499	u8 tmp8;
500
501	usbnet_link_change(dev, 0, 0);
502
503	/* Power up ethernet PHY */
504	tmp16 = 0;
505	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
506			       2, 2, &tmp16);
507	udelay(1000);
508
509	tmp16 = AX_PHYPWR_RSTCTL_IPRL;
510	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
511			       2, 2, &tmp16);
512	msleep(200);
513
514	/* Ethernet PHY Auto Detach*/
515	ax88179_auto_detach(dev, 1);
516
517	/* Enable clock */
518	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC,  AX_CLK_SELECT, 1, 1, &tmp8);
519	tmp8 |= AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
520	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
521	msleep(100);
522
523	/* Configure RX control register => start operation */
524	tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
525		AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
526	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
527
528	return usbnet_resume(intf);
529}
530
531static void
532ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
533{
534	struct usbnet *dev = netdev_priv(net);
535	u8 opt;
536
537	if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
538			     1, 1, &opt) < 0) {
539		wolinfo->supported = 0;
540		wolinfo->wolopts = 0;
541		return;
542	}
543
544	wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
545	wolinfo->wolopts = 0;
546	if (opt & AX_MONITOR_MODE_RWLC)
547		wolinfo->wolopts |= WAKE_PHY;
548	if (opt & AX_MONITOR_MODE_RWMP)
549		wolinfo->wolopts |= WAKE_MAGIC;
550}
551
552static int
553ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
554{
555	struct usbnet *dev = netdev_priv(net);
556	u8 opt = 0;
557
558	if (wolinfo->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
559		return -EINVAL;
560
561	if (wolinfo->wolopts & WAKE_PHY)
562		opt |= AX_MONITOR_MODE_RWLC;
563	if (wolinfo->wolopts & WAKE_MAGIC)
564		opt |= AX_MONITOR_MODE_RWMP;
565
566	if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
567			      1, 1, &opt) < 0)
568		return -EINVAL;
569
570	return 0;
571}
572
573static int ax88179_get_eeprom_len(struct net_device *net)
574{
575	return AX_EEPROM_LEN;
576}
577
578static int
579ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
580		   u8 *data)
581{
582	struct usbnet *dev = netdev_priv(net);
583	u16 *eeprom_buff;
584	int first_word, last_word;
585	int i, ret;
586
587	if (eeprom->len == 0)
588		return -EINVAL;
589
590	eeprom->magic = AX88179_EEPROM_MAGIC;
591
592	first_word = eeprom->offset >> 1;
593	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
594	eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
595				    GFP_KERNEL);
596	if (!eeprom_buff)
597		return -ENOMEM;
598
599	/* ax88179/178A returns 2 bytes from eeprom on read */
600	for (i = first_word; i <= last_word; i++) {
601		ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
602					 &eeprom_buff[i - first_word],
603					 0);
604		if (ret < 0) {
605			kfree(eeprom_buff);
606			return -EIO;
607		}
608	}
609
610	memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
611	kfree(eeprom_buff);
612	return 0;
613}
614
615static int
616ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
617		   u8 *data)
618{
619	struct usbnet *dev = netdev_priv(net);
620	u16 *eeprom_buff;
621	int first_word;
622	int last_word;
623	int ret;
624	int i;
625
626	netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
627		   eeprom->len, eeprom->offset, eeprom->magic);
628
629	if (eeprom->len == 0)
630		return -EINVAL;
631
632	if (eeprom->magic != AX88179_EEPROM_MAGIC)
633		return -EINVAL;
634
635	first_word = eeprom->offset >> 1;
636	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
637
638	eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
639				    GFP_KERNEL);
640	if (!eeprom_buff)
641		return -ENOMEM;
642
643	/* align data to 16 bit boundaries, read the missing data from
644	   the EEPROM */
645	if (eeprom->offset & 1) {
646		ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,
647				       &eeprom_buff[0]);
648		if (ret < 0) {
649			netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
650			goto free;
651		}
652	}
653
654	if ((eeprom->offset + eeprom->len) & 1) {
655		ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,
656				       &eeprom_buff[last_word - first_word]);
657		if (ret < 0) {
658			netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
659			goto free;
660		}
661	}
662
663	memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);
664
665	for (i = first_word; i <= last_word; i++) {
666		netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
667			   i, eeprom_buff[i - first_word]);
668		ret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
669					&eeprom_buff[i - first_word]);
670		if (ret < 0) {
671			netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", i);
672			goto free;
673		}
674		msleep(20);
675	}
676
677	/* reload EEPROM data */
678	ret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);
679	if (ret < 0) {
680		netdev_err(net, "Failed to reload EEPROM data\n");
681		goto free;
682	}
683
684	ret = 0;
685free:
686	kfree(eeprom_buff);
687	return ret;
688}
689
690static int ax88179_get_link_ksettings(struct net_device *net,
691				      struct ethtool_link_ksettings *cmd)
692{
693	struct usbnet *dev = netdev_priv(net);
694
695	mii_ethtool_get_link_ksettings(&dev->mii, cmd);
696
697	return 0;
698}
699
700static int ax88179_set_link_ksettings(struct net_device *net,
701				      const struct ethtool_link_ksettings *cmd)
702{
703	struct usbnet *dev = netdev_priv(net);
704	return mii_ethtool_set_link_ksettings(&dev->mii, cmd);
705}
706
707static int
708ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data)
709{
710	int val;
711
712	/* Get Supported EEE */
713	val = ax88179_phy_read_mmd_indirect(dev, MDIO_PCS_EEE_ABLE,
714					    MDIO_MMD_PCS);
715	if (val < 0)
716		return val;
717	data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
718
719	/* Get advertisement EEE */
720	val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
721					    MDIO_MMD_AN);
722	if (val < 0)
723		return val;
724	data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
725
726	/* Get LP advertisement EEE */
727	val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
728					    MDIO_MMD_AN);
729	if (val < 0)
730		return val;
731	data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
732
733	return 0;
734}
735
736static int
737ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data)
738{
739	u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
740
741	return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
742					      MDIO_MMD_AN, tmp16);
743}
744
745static int ax88179_chk_eee(struct usbnet *dev)
746{
747	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
748	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
749
750	mii_ethtool_gset(&dev->mii, &ecmd);
751
752	if (ecmd.duplex & DUPLEX_FULL) {
753		int eee_lp, eee_cap, eee_adv;
754		u32 lp, cap, adv, supported = 0;
755
756		eee_cap = ax88179_phy_read_mmd_indirect(dev,
757							MDIO_PCS_EEE_ABLE,
758							MDIO_MMD_PCS);
759		if (eee_cap < 0) {
760			priv->eee_active = 0;
761			return false;
762		}
763
764		cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
765		if (!cap) {
766			priv->eee_active = 0;
767			return false;
768		}
769
770		eee_lp = ax88179_phy_read_mmd_indirect(dev,
771						       MDIO_AN_EEE_LPABLE,
772						       MDIO_MMD_AN);
773		if (eee_lp < 0) {
774			priv->eee_active = 0;
775			return false;
776		}
777
778		eee_adv = ax88179_phy_read_mmd_indirect(dev,
779							MDIO_AN_EEE_ADV,
780							MDIO_MMD_AN);
781
782		if (eee_adv < 0) {
783			priv->eee_active = 0;
784			return false;
785		}
786
787		adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
788		lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
789		supported = (ecmd.speed == SPEED_1000) ?
790			     SUPPORTED_1000baseT_Full :
791			     SUPPORTED_100baseT_Full;
792
793		if (!(lp & adv & supported)) {
794			priv->eee_active = 0;
795			return false;
796		}
797
798		priv->eee_active = 1;
799		return true;
800	}
801
802	priv->eee_active = 0;
803	return false;
804}
805
806static void ax88179_disable_eee(struct usbnet *dev)
807{
808	u16 tmp16;
809
810	tmp16 = GMII_PHY_PGSEL_PAGE3;
811	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
812			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
813
814	tmp16 = 0x3246;
815	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
816			  MII_PHYADDR, 2, &tmp16);
817
818	tmp16 = GMII_PHY_PGSEL_PAGE0;
819	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
820			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
821}
822
823static void ax88179_enable_eee(struct usbnet *dev)
824{
825	u16 tmp16;
826
827	tmp16 = GMII_PHY_PGSEL_PAGE3;
828	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
829			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
830
831	tmp16 = 0x3247;
832	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
833			  MII_PHYADDR, 2, &tmp16);
834
835	tmp16 = GMII_PHY_PGSEL_PAGE5;
836	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
837			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
838
839	tmp16 = 0x0680;
840	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
841			  MII_BMSR, 2, &tmp16);
842
843	tmp16 = GMII_PHY_PGSEL_PAGE0;
844	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
845			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
846}
847
848static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata)
849{
850	struct usbnet *dev = netdev_priv(net);
851	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
852
853	edata->eee_enabled = priv->eee_enabled;
854	edata->eee_active = priv->eee_active;
855
856	return ax88179_ethtool_get_eee(dev, edata);
857}
858
859static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
860{
861	struct usbnet *dev = netdev_priv(net);
862	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
863	int ret;
864
865	priv->eee_enabled = edata->eee_enabled;
866	if (!priv->eee_enabled) {
867		ax88179_disable_eee(dev);
868	} else {
869		priv->eee_enabled = ax88179_chk_eee(dev);
870		if (!priv->eee_enabled)
871			return -EOPNOTSUPP;
872
873		ax88179_enable_eee(dev);
874	}
875
876	ret = ax88179_ethtool_set_eee(dev, edata);
877	if (ret)
878		return ret;
879
880	mii_nway_restart(&dev->mii);
881
882	usbnet_link_change(dev, 0, 0);
883
884	return ret;
885}
886
887static int ax88179_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
888{
889	struct usbnet *dev = netdev_priv(net);
890	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
891}
892
893static const struct ethtool_ops ax88179_ethtool_ops = {
894	.get_link		= ethtool_op_get_link,
895	.get_msglevel		= usbnet_get_msglevel,
896	.set_msglevel		= usbnet_set_msglevel,
897	.get_wol		= ax88179_get_wol,
898	.set_wol		= ax88179_set_wol,
899	.get_eeprom_len		= ax88179_get_eeprom_len,
900	.get_eeprom		= ax88179_get_eeprom,
901	.set_eeprom		= ax88179_set_eeprom,
902	.get_eee		= ax88179_get_eee,
903	.set_eee		= ax88179_set_eee,
904	.nway_reset		= usbnet_nway_reset,
905	.get_link_ksettings	= ax88179_get_link_ksettings,
906	.set_link_ksettings	= ax88179_set_link_ksettings,
907	.get_ts_info		= ethtool_op_get_ts_info,
908};
909
910static void ax88179_set_multicast(struct net_device *net)
911{
912	struct usbnet *dev = netdev_priv(net);
913	struct ax88179_data *data = (struct ax88179_data *)dev->data;
914	u8 *m_filter = ((u8 *)dev->data) + 12;
915
916	data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
917
918	if (net->flags & IFF_PROMISC) {
919		data->rxctl |= AX_RX_CTL_PRO;
920	} else if (net->flags & IFF_ALLMULTI ||
921		   netdev_mc_count(net) > AX_MAX_MCAST) {
922		data->rxctl |= AX_RX_CTL_AMALL;
923	} else if (netdev_mc_empty(net)) {
924		/* just broadcast and directed */
925	} else {
926		/* We use the 20 byte dev->data for our 8 byte filter buffer
927		 * to avoid allocating memory that is tricky to free later
928		 */
929		u32 crc_bits;
930		struct netdev_hw_addr *ha;
931
932		memset(m_filter, 0, AX_MCAST_FLTSIZE);
933
934		netdev_for_each_mc_addr(ha, net) {
935			crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
936			*(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
937		}
938
939		ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
940					AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
941					m_filter);
942
943		data->rxctl |= AX_RX_CTL_AM;
944	}
945
946	ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
947				2, 2, &data->rxctl);
948}
949
950static int
951ax88179_set_features(struct net_device *net, netdev_features_t features)
952{
953	u8 tmp;
954	struct usbnet *dev = netdev_priv(net);
955	netdev_features_t changed = net->features ^ features;
956
957	if (changed & NETIF_F_IP_CSUM) {
958		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
959		tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
960		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
961	}
962
963	if (changed & NETIF_F_IPV6_CSUM) {
964		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
965		tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
966		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
967	}
968
969	if (changed & NETIF_F_RXCSUM) {
970		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
971		tmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
972		       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
973		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
974	}
975
976	return 0;
977}
978
979static int ax88179_change_mtu(struct net_device *net, int new_mtu)
980{
981	struct usbnet *dev = netdev_priv(net);
982	u16 tmp16;
983
984	net->mtu = new_mtu;
985	dev->hard_mtu = net->mtu + net->hard_header_len;
986
987	if (net->mtu > 1500) {
988		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
989				 2, 2, &tmp16);
990		tmp16 |= AX_MEDIUM_JUMBO_EN;
991		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
992				  2, 2, &tmp16);
993	} else {
994		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
995				 2, 2, &tmp16);
996		tmp16 &= ~AX_MEDIUM_JUMBO_EN;
997		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
998				  2, 2, &tmp16);
999	}
1000
1001	/* max qlen depend on hard_mtu and rx_urb_size */
1002	usbnet_update_max_qlen(dev);
1003
1004	return 0;
1005}
1006
1007static int ax88179_set_mac_addr(struct net_device *net, void *p)
1008{
1009	struct usbnet *dev = netdev_priv(net);
1010	struct sockaddr *addr = p;
1011	int ret;
1012
1013	if (netif_running(net))
1014		return -EBUSY;
1015	if (!is_valid_ether_addr(addr->sa_data))
1016		return -EADDRNOTAVAIL;
1017
1018	memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
1019
1020	/* Set the MAC address */
1021	ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
1022				 ETH_ALEN, net->dev_addr);
1023	if (ret < 0)
1024		return ret;
1025
1026	return 0;
1027}
1028
1029static const struct net_device_ops ax88179_netdev_ops = {
1030	.ndo_open		= usbnet_open,
1031	.ndo_stop		= usbnet_stop,
1032	.ndo_start_xmit		= usbnet_start_xmit,
1033	.ndo_tx_timeout		= usbnet_tx_timeout,
1034	.ndo_get_stats64	= usbnet_get_stats64,
1035	.ndo_change_mtu		= ax88179_change_mtu,
1036	.ndo_set_mac_address	= ax88179_set_mac_addr,
1037	.ndo_validate_addr	= eth_validate_addr,
1038	.ndo_do_ioctl		= ax88179_ioctl,
1039	.ndo_set_rx_mode	= ax88179_set_multicast,
1040	.ndo_set_features	= ax88179_set_features,
1041};
1042
1043static int ax88179_check_eeprom(struct usbnet *dev)
1044{
1045	u8 i, buf, eeprom[20];
1046	u16 csum, delay = HZ / 10;
1047	unsigned long jtimeout;
1048
1049	/* Read EEPROM content */
1050	for (i = 0; i < 6; i++) {
1051		buf = i;
1052		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
1053				      1, 1, &buf) < 0)
1054			return -EINVAL;
1055
1056		buf = EEP_RD;
1057		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1058				      1, 1, &buf) < 0)
1059			return -EINVAL;
1060
1061		jtimeout = jiffies + delay;
1062		do {
1063			ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1064					 1, 1, &buf);
1065
1066			if (time_after(jiffies, jtimeout))
1067				return -EINVAL;
1068
1069		} while (buf & EEP_BUSY);
1070
1071		__ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
1072				   2, 2, &eeprom[i * 2], 0);
1073
1074		if ((i == 0) && (eeprom[0] == 0xFF))
1075			return -EINVAL;
1076	}
1077
1078	csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];
1079	csum = (csum >> 8) + (csum & 0xff);
1080	if ((csum + eeprom[10]) != 0xff)
1081		return -EINVAL;
1082
1083	return 0;
1084}
1085
1086static int ax88179_check_efuse(struct usbnet *dev, u16 *ledmode)
1087{
1088	u8	i;
1089	u8	efuse[64];
1090	u16	csum = 0;
1091
1092	if (ax88179_read_cmd(dev, AX_ACCESS_EFUS, 0, 64, 64, efuse) < 0)
1093		return -EINVAL;
1094
1095	if (*efuse == 0xFF)
1096		return -EINVAL;
1097
1098	for (i = 0; i < 64; i++)
1099		csum = csum + efuse[i];
1100
1101	while (csum > 255)
1102		csum = (csum & 0x00FF) + ((csum >> 8) & 0x00FF);
1103
1104	if (csum != 0xFF)
1105		return -EINVAL;
1106
1107	*ledmode = (efuse[51] << 8) | efuse[52];
1108
1109	return 0;
1110}
1111
1112static int ax88179_convert_old_led(struct usbnet *dev, u16 *ledvalue)
1113{
1114	u16 led;
1115
1116	/* Loaded the old eFuse LED Mode */
1117	if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x3C, 1, 2, &led) < 0)
1118		return -EINVAL;
1119
1120	led >>= 8;
1121	switch (led) {
1122	case 0xFF:
1123		led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
1124		      LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
1125		      LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
1126		break;
1127	case 0xFE:
1128		led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 | LED_VALID;
1129		break;
1130	case 0xFD:
1131		led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 |
1132		      LED2_LINK_10 | LED_VALID;
1133		break;
1134	case 0xFC:
1135		led = LED0_ACTIVE | LED1_ACTIVE | LED1_LINK_1000 | LED2_ACTIVE |
1136		      LED2_LINK_100 | LED2_LINK_10 | LED_VALID;
1137		break;
1138	default:
1139		led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
1140		      LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
1141		      LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
1142		break;
1143	}
1144
1145	*ledvalue = led;
1146
1147	return 0;
1148}
1149
1150static int ax88179_led_setting(struct usbnet *dev)
1151{
1152	u8 ledfd, value = 0;
1153	u16 tmp, ledact, ledlink, ledvalue = 0, delay = HZ / 10;
1154	unsigned long jtimeout;
1155
1156	/* Check AX88179 version. UA1 or UA2*/
1157	ax88179_read_cmd(dev, AX_ACCESS_MAC, GENERAL_STATUS, 1, 1, &value);
1158
1159	if (!(value & AX_SECLD)) {	/* UA1 */
1160		value = AX_GPIO_CTRL_GPIO3EN | AX_GPIO_CTRL_GPIO2EN |
1161			AX_GPIO_CTRL_GPIO1EN;
1162		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_GPIO_CTRL,
1163				      1, 1, &value) < 0)
1164			return -EINVAL;
1165	}
1166
1167	/* Check EEPROM */
1168	if (!ax88179_check_eeprom(dev)) {
1169		value = 0x42;
1170		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
1171				      1, 1, &value) < 0)
1172			return -EINVAL;
1173
1174		value = EEP_RD;
1175		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1176				      1, 1, &value) < 0)
1177			return -EINVAL;
1178
1179		jtimeout = jiffies + delay;
1180		do {
1181			ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1182					 1, 1, &value);
1183
1184			if (time_after(jiffies, jtimeout))
1185				return -EINVAL;
1186
1187		} while (value & EEP_BUSY);
1188
1189		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_HIGH,
1190				 1, 1, &value);
1191		ledvalue = (value << 8);
1192
1193		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
1194				 1, 1, &value);
1195		ledvalue |= value;
1196
1197		/* load internal ROM for defaule setting */
1198		if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
1199			ax88179_convert_old_led(dev, &ledvalue);
1200
1201	} else if (!ax88179_check_efuse(dev, &ledvalue)) {
1202		if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
1203			ax88179_convert_old_led(dev, &ledvalue);
1204	} else {
1205		ax88179_convert_old_led(dev, &ledvalue);
1206	}
1207
1208	tmp = GMII_PHY_PGSEL_EXT;
1209	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1210			  GMII_PHY_PAGE_SELECT, 2, &tmp);
1211
1212	tmp = 0x2c;
1213	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1214			  GMII_PHYPAGE, 2, &tmp);
1215
1216	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1217			 GMII_LED_ACT, 2, &ledact);
1218
1219	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1220			 GMII_LED_LINK, 2, &ledlink);
1221
1222	ledact &= GMII_LED_ACTIVE_MASK;
1223	ledlink &= GMII_LED_LINK_MASK;
1224
1225	if (ledvalue & LED0_ACTIVE)
1226		ledact |= GMII_LED0_ACTIVE;
1227
1228	if (ledvalue & LED1_ACTIVE)
1229		ledact |= GMII_LED1_ACTIVE;
1230
1231	if (ledvalue & LED2_ACTIVE)
1232		ledact |= GMII_LED2_ACTIVE;
1233
1234	if (ledvalue & LED0_LINK_10)
1235		ledlink |= GMII_LED0_LINK_10;
1236
1237	if (ledvalue & LED1_LINK_10)
1238		ledlink |= GMII_LED1_LINK_10;
1239
1240	if (ledvalue & LED2_LINK_10)
1241		ledlink |= GMII_LED2_LINK_10;
1242
1243	if (ledvalue & LED0_LINK_100)
1244		ledlink |= GMII_LED0_LINK_100;
1245
1246	if (ledvalue & LED1_LINK_100)
1247		ledlink |= GMII_LED1_LINK_100;
1248
1249	if (ledvalue & LED2_LINK_100)
1250		ledlink |= GMII_LED2_LINK_100;
1251
1252	if (ledvalue & LED0_LINK_1000)
1253		ledlink |= GMII_LED0_LINK_1000;
1254
1255	if (ledvalue & LED1_LINK_1000)
1256		ledlink |= GMII_LED1_LINK_1000;
1257
1258	if (ledvalue & LED2_LINK_1000)
1259		ledlink |= GMII_LED2_LINK_1000;
1260
1261	tmp = ledact;
1262	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1263			  GMII_LED_ACT, 2, &tmp);
1264
1265	tmp = ledlink;
1266	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1267			  GMII_LED_LINK, 2, &tmp);
1268
1269	tmp = GMII_PHY_PGSEL_PAGE0;
1270	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1271			  GMII_PHY_PAGE_SELECT, 2, &tmp);
1272
1273	/* LED full duplex setting */
1274	ledfd = 0;
1275	if (ledvalue & LED0_FD)
1276		ledfd |= 0x01;
1277	else if ((ledvalue & LED0_USB3_MASK) == 0)
1278		ledfd |= 0x02;
1279
1280	if (ledvalue & LED1_FD)
1281		ledfd |= 0x04;
1282	else if ((ledvalue & LED1_USB3_MASK) == 0)
1283		ledfd |= 0x08;
1284
1285	if (ledvalue & LED2_FD)
1286		ledfd |= 0x10;
1287	else if ((ledvalue & LED2_USB3_MASK) == 0)
1288		ledfd |= 0x20;
1289
1290	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_LEDCTRL, 1, 1, &ledfd);
1291
1292	return 0;
1293}
1294
1295static void ax88179_get_mac_addr(struct usbnet *dev)
1296{
1297	u8 mac[ETH_ALEN];
1298
1299	memset(mac, 0, sizeof(mac));
1300
1301	/* Maybe the boot loader passed the MAC address via device tree */
1302	if (!eth_platform_get_mac_address(&dev->udev->dev, mac)) {
1303		netif_dbg(dev, ifup, dev->net,
1304			  "MAC address read from device tree");
1305	} else {
1306		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
1307				 ETH_ALEN, mac);
1308		netif_dbg(dev, ifup, dev->net,
1309			  "MAC address read from ASIX chip");
1310	}
1311
1312	if (is_valid_ether_addr(mac)) {
1313		memcpy(dev->net->dev_addr, mac, ETH_ALEN);
1314	} else {
1315		netdev_info(dev->net, "invalid MAC address, using random\n");
1316		eth_hw_addr_random(dev->net);
1317	}
1318
1319	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
1320			  dev->net->dev_addr);
1321}
1322
1323static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
1324{
1325	u8 buf[5];
1326	u16 *tmp16;
1327	u8 *tmp;
1328	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1329	struct ethtool_eee eee_data;
1330
1331	usbnet_get_endpoints(dev, intf);
1332
1333	tmp16 = (u16 *)buf;
1334	tmp = (u8 *)buf;
1335
1336	memset(ax179_data, 0, sizeof(*ax179_data));
1337
1338	/* Power up ethernet PHY */
1339	*tmp16 = 0;
1340	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1341	*tmp16 = AX_PHYPWR_RSTCTL_IPRL;
1342	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1343	msleep(200);
1344
1345	*tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
1346	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1347	msleep(100);
1348
1349	/* Read MAC address from DTB or asix chip */
1350	ax88179_get_mac_addr(dev);
1351	memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
1352
1353	/* RX bulk configuration */
1354	memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1355	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1356
1357	dev->rx_urb_size = 1024 * 20;
1358
1359	*tmp = 0x34;
1360	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1361
1362	*tmp = 0x52;
1363	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1364			  1, 1, tmp);
1365
1366	dev->net->netdev_ops = &ax88179_netdev_ops;
1367	dev->net->ethtool_ops = &ax88179_ethtool_ops;
1368	dev->net->needed_headroom = 8;
1369	dev->net->max_mtu = 4088;
1370
1371	/* Initialize MII structure */
1372	dev->mii.dev = dev->net;
1373	dev->mii.mdio_read = ax88179_mdio_read;
1374	dev->mii.mdio_write = ax88179_mdio_write;
1375	dev->mii.phy_id_mask = 0xff;
1376	dev->mii.reg_num_mask = 0xff;
1377	dev->mii.phy_id = 0x03;
1378	dev->mii.supports_gmii = 1;
1379
1380	dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1381			      NETIF_F_RXCSUM;
1382
1383	dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1384				 NETIF_F_RXCSUM;
1385
1386	/* Enable checksum offload */
1387	*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1388	       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1389	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1390
1391	*tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1392	       AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1393	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1394
1395	/* Configure RX control register => start operation */
1396	*tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1397		 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1398	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1399
1400	*tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1401	       AX_MONITOR_MODE_RWMP;
1402	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1403
1404	/* Configure default medium type => giga */
1405	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1406		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1407		 AX_MEDIUM_GIGAMODE;
1408	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1409			  2, 2, tmp16);
1410
1411	ax88179_led_setting(dev);
1412
1413	ax179_data->eee_enabled = 0;
1414	ax179_data->eee_active = 0;
1415
1416	ax88179_disable_eee(dev);
1417
1418	ax88179_ethtool_get_eee(dev, &eee_data);
1419	eee_data.advertised = 0;
1420	ax88179_ethtool_set_eee(dev, &eee_data);
1421
1422	/* Restart autoneg */
1423	mii_nway_restart(&dev->mii);
1424
1425	usbnet_link_change(dev, 0, 0);
1426
1427	return 0;
1428}
1429
1430static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
1431{
1432	u16 tmp16;
1433
1434	/* Configure RX control register => stop operation */
1435	tmp16 = AX_RX_CTL_STOP;
1436	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
1437
1438	tmp16 = 0;
1439	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp16);
1440
1441	/* Power down ethernet PHY */
1442	tmp16 = 0;
1443	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
1444}
1445
1446static void
1447ax88179_rx_checksum(struct sk_buff *skb, u32 *pkt_hdr)
1448{
1449	skb->ip_summed = CHECKSUM_NONE;
1450
1451	/* checksum error bit is set */
1452	if ((*pkt_hdr & AX_RXHDR_L3CSUM_ERR) ||
1453	    (*pkt_hdr & AX_RXHDR_L4CSUM_ERR))
1454		return;
1455
1456	/* It must be a TCP or UDP packet with a valid checksum */
1457	if (((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_TCP) ||
1458	    ((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_UDP))
1459		skb->ip_summed = CHECKSUM_UNNECESSARY;
1460}
1461
1462static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1463{
1464	struct sk_buff *ax_skb;
1465	int pkt_cnt;
1466	u32 rx_hdr;
1467	u16 hdr_off;
1468	u32 *pkt_hdr;
1469
1470	/* At the end of the SKB, there's a header telling us how many packets
1471	 * are bundled into this buffer and where we can find an array of
1472	 * per-packet metadata (which contains elements encoded into u16).
1473	 */
1474
1475	/* SKB contents for current firmware:
1476	 *   <packet 1> <padding>
1477	 *   ...
1478	 *   <packet N> <padding>
1479	 *   <per-packet metadata entry 1> <dummy header>
1480	 *   ...
1481	 *   <per-packet metadata entry N> <dummy header>
1482	 *   <padding2> <rx_hdr>
1483	 *
1484	 * where:
1485	 *   <packet N> contains pkt_len bytes:
1486	 *		2 bytes of IP alignment pseudo header
1487	 *		packet received
1488	 *   <per-packet metadata entry N> contains 4 bytes:
1489	 *		pkt_len and fields AX_RXHDR_*
1490	 *   <padding>	0-7 bytes to terminate at
1491	 *		8 bytes boundary (64-bit).
1492	 *   <padding2> 4 bytes to make rx_hdr terminate at
1493	 *		8 bytes boundary (64-bit)
1494	 *   <dummy-header> contains 4 bytes:
1495	 *		pkt_len=0 and AX_RXHDR_DROP_ERR
1496	 *   <rx-hdr>	contains 4 bytes:
1497	 *		pkt_cnt and hdr_off (offset of
1498	 *		  <per-packet metadata entry 1>)
1499	 *
1500	 * pkt_cnt is number of entrys in the per-packet metadata.
1501	 * In current firmware there is 2 entrys per packet.
1502	 * The first points to the packet and the
1503	 *  second is a dummy header.
1504	 * This was done probably to align fields in 64-bit and
1505	 *  maintain compatibility with old firmware.
1506	 * This code assumes that <dummy header> and <padding2> are
1507	 *  optional.
1508	 */
1509
1510	if (skb->len < 4)
1511		return 0;
1512	skb_trim(skb, skb->len - 4);
1513	rx_hdr = get_unaligned_le32(skb_tail_pointer(skb));
1514	pkt_cnt = (u16)rx_hdr;
1515	hdr_off = (u16)(rx_hdr >> 16);
1516
1517	if (pkt_cnt == 0)
1518		return 0;
1519
1520	/* Make sure that the bounds of the metadata array are inside the SKB
1521	 * (and in front of the counter at the end).
1522	 */
1523	if (pkt_cnt * 4 + hdr_off > skb->len)
1524		return 0;
1525	pkt_hdr = (u32 *)(skb->data + hdr_off);
1526
1527	/* Packets must not overlap the metadata array */
1528	skb_trim(skb, hdr_off);
1529
1530	for (; pkt_cnt > 0; pkt_cnt--, pkt_hdr++) {
1531		u16 pkt_len_plus_padd;
1532		u16 pkt_len;
1533
1534		le32_to_cpus(pkt_hdr);
1535		pkt_len = (*pkt_hdr >> 16) & 0x1fff;
1536		pkt_len_plus_padd = (pkt_len + 7) & 0xfff8;
1537
1538		/* Skip dummy header used for alignment
1539		 */
1540		if (pkt_len == 0)
1541			continue;
1542
1543		if (pkt_len_plus_padd > skb->len)
1544			return 0;
1545
1546		/* Check CRC or runt packet */
1547		if ((*pkt_hdr & (AX_RXHDR_CRC_ERR | AX_RXHDR_DROP_ERR)) ||
1548		    pkt_len < 2 + ETH_HLEN) {
1549			dev->net->stats.rx_errors++;
1550			skb_pull(skb, pkt_len_plus_padd);
1551			continue;
1552		}
1553
1554		/* last packet */
1555		if (pkt_len_plus_padd == skb->len) {
1556			skb_trim(skb, pkt_len);
1557
1558			/* Skip IP alignment pseudo header */
1559			skb_pull(skb, 2);
1560
1561			skb->truesize = SKB_TRUESIZE(pkt_len_plus_padd);
1562			ax88179_rx_checksum(skb, pkt_hdr);
1563			return 1;
1564		}
1565
1566		ax_skb = skb_clone(skb, GFP_ATOMIC);
1567		if (!ax_skb)
1568			return 0;
1569		skb_trim(ax_skb, pkt_len);
1570
1571		/* Skip IP alignment pseudo header */
1572		skb_pull(ax_skb, 2);
1573
1574		skb->truesize = pkt_len_plus_padd +
1575				SKB_DATA_ALIGN(sizeof(struct sk_buff));
1576		ax88179_rx_checksum(ax_skb, pkt_hdr);
1577		usbnet_skb_return(dev, ax_skb);
1578
1579		skb_pull(skb, pkt_len_plus_padd);
1580	}
1581
1582	return 0;
1583}
1584
1585static struct sk_buff *
1586ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
1587{
1588	u32 tx_hdr1, tx_hdr2;
1589	int frame_size = dev->maxpacket;
1590	int mss = skb_shinfo(skb)->gso_size;
1591	int headroom;
1592	void *ptr;
1593
1594	tx_hdr1 = skb->len;
1595	tx_hdr2 = mss;
1596	if (((skb->len + 8) % frame_size) == 0)
1597		tx_hdr2 |= 0x80008000;	/* Enable padding */
1598
1599	headroom = skb_headroom(skb) - 8;
1600
1601	if ((skb_header_cloned(skb) || headroom < 0) &&
1602	    pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
1603		dev_kfree_skb_any(skb);
1604		return NULL;
1605	}
1606
1607	ptr = skb_push(skb, 8);
1608	put_unaligned_le32(tx_hdr1, ptr);
1609	put_unaligned_le32(tx_hdr2, ptr + 4);
1610
1611	return skb;
1612}
1613
1614static int ax88179_link_reset(struct usbnet *dev)
1615{
1616	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1617	u8 tmp[5], link_sts;
1618	u16 mode, tmp16, delay = HZ / 10;
1619	u32 tmp32 = 0x40000000;
1620	unsigned long jtimeout;
1621
1622	jtimeout = jiffies + delay;
1623	while (tmp32 & 0x40000000) {
1624		mode = 0;
1625		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &mode);
1626		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2,
1627				  &ax179_data->rxctl);
1628
1629		/*link up, check the usb device control TX FIFO full or empty*/
1630		ax88179_read_cmd(dev, 0x81, 0x8c, 0, 4, &tmp32);
1631
1632		if (time_after(jiffies, jtimeout))
1633			return 0;
1634	}
1635
1636	mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1637	       AX_MEDIUM_RXFLOW_CTRLEN;
1638
1639	ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS,
1640			 1, 1, &link_sts);
1641
1642	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1643			 GMII_PHY_PHYSR, 2, &tmp16);
1644
1645	if (!(tmp16 & GMII_PHY_PHYSR_LINK)) {
1646		return 0;
1647	} else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1648		mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ;
1649		if (dev->net->mtu > 1500)
1650			mode |= AX_MEDIUM_JUMBO_EN;
1651
1652		if (link_sts & AX_USB_SS)
1653			memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1654		else if (link_sts & AX_USB_HS)
1655			memcpy(tmp, &AX88179_BULKIN_SIZE[1], 5);
1656		else
1657			memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1658	} else if (GMII_PHY_PHYSR_100 == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1659		mode |= AX_MEDIUM_PS;
1660
1661		if (link_sts & (AX_USB_SS | AX_USB_HS))
1662			memcpy(tmp, &AX88179_BULKIN_SIZE[2], 5);
1663		else
1664			memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1665	} else {
1666		memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1667	}
1668
1669	/* RX bulk configuration */
1670	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1671
1672	dev->rx_urb_size = (1024 * (tmp[3] + 2));
1673
1674	if (tmp16 & GMII_PHY_PHYSR_FULL)
1675		mode |= AX_MEDIUM_FULL_DUPLEX;
1676	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1677			  2, 2, &mode);
1678
1679	ax179_data->eee_enabled = ax88179_chk_eee(dev);
1680
1681	netif_carrier_on(dev->net);
1682
1683	return 0;
1684}
1685
1686static int ax88179_reset(struct usbnet *dev)
1687{
1688	u8 buf[5];
1689	u16 *tmp16;
1690	u8 *tmp;
1691	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1692	struct ethtool_eee eee_data;
1693
1694	tmp16 = (u16 *)buf;
1695	tmp = (u8 *)buf;
1696
1697	/* Power up ethernet PHY */
1698	*tmp16 = 0;
1699	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1700
1701	*tmp16 = AX_PHYPWR_RSTCTL_IPRL;
1702	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1703	msleep(500);
1704
1705	*tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
1706	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1707	msleep(200);
1708
1709	/* Ethernet PHY Auto Detach*/
1710	ax88179_auto_detach(dev, 0);
1711
1712	/* Read MAC address from DTB or asix chip */
1713	ax88179_get_mac_addr(dev);
1714
1715	/* RX bulk configuration */
1716	memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1717	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1718
1719	dev->rx_urb_size = 1024 * 20;
1720
1721	*tmp = 0x34;
1722	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1723
1724	*tmp = 0x52;
1725	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1726			  1, 1, tmp);
1727
1728	dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1729			      NETIF_F_RXCSUM;
1730
1731	dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1732				 NETIF_F_RXCSUM;
1733
1734	/* Enable checksum offload */
1735	*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1736	       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1737	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1738
1739	*tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1740	       AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1741	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1742
1743	/* Configure RX control register => start operation */
1744	*tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1745		 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1746	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1747
1748	*tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1749	       AX_MONITOR_MODE_RWMP;
1750	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1751
1752	/* Configure default medium type => giga */
1753	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1754		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1755		 AX_MEDIUM_GIGAMODE;
1756	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1757			  2, 2, tmp16);
1758
1759	ax88179_led_setting(dev);
1760
1761	ax179_data->eee_enabled = 0;
1762	ax179_data->eee_active = 0;
1763
1764	ax88179_disable_eee(dev);
1765
1766	ax88179_ethtool_get_eee(dev, &eee_data);
1767	eee_data.advertised = 0;
1768	ax88179_ethtool_set_eee(dev, &eee_data);
1769
1770	/* Restart autoneg */
1771	mii_nway_restart(&dev->mii);
1772
1773	usbnet_link_change(dev, 0, 0);
1774
1775	return 0;
1776}
1777
1778static int ax88179_stop(struct usbnet *dev)
1779{
1780	u16 tmp16;
1781
1782	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1783			 2, 2, &tmp16);
1784	tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
1785	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1786			  2, 2, &tmp16);
1787
1788	return 0;
1789}
1790
1791static const struct driver_info ax88179_info = {
1792	.description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
1793	.bind = ax88179_bind,
1794	.unbind = ax88179_unbind,
1795	.status = ax88179_status,
1796	.link_reset = ax88179_link_reset,
1797	.reset = ax88179_reset,
1798	.stop = ax88179_stop,
1799	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1800	.rx_fixup = ax88179_rx_fixup,
1801	.tx_fixup = ax88179_tx_fixup,
1802};
1803
1804static const struct driver_info ax88178a_info = {
1805	.description = "ASIX AX88178A USB 2.0 Gigabit Ethernet",
1806	.bind = ax88179_bind,
1807	.unbind = ax88179_unbind,
1808	.status = ax88179_status,
1809	.link_reset = ax88179_link_reset,
1810	.reset = ax88179_reset,
1811	.stop = ax88179_stop,
1812	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1813	.rx_fixup = ax88179_rx_fixup,
1814	.tx_fixup = ax88179_tx_fixup,
1815};
1816
1817static const struct driver_info cypress_GX3_info = {
1818	.description = "Cypress GX3 SuperSpeed to Gigabit Ethernet Controller",
1819	.bind = ax88179_bind,
1820	.unbind = ax88179_unbind,
1821	.status = ax88179_status,
1822	.link_reset = ax88179_link_reset,
1823	.reset = ax88179_reset,
1824	.stop = ax88179_stop,
1825	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1826	.rx_fixup = ax88179_rx_fixup,
1827	.tx_fixup = ax88179_tx_fixup,
1828};
1829
1830static const struct driver_info dlink_dub1312_info = {
1831	.description = "D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter",
1832	.bind = ax88179_bind,
1833	.unbind = ax88179_unbind,
1834	.status = ax88179_status,
1835	.link_reset = ax88179_link_reset,
1836	.reset = ax88179_reset,
1837	.stop = ax88179_stop,
1838	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1839	.rx_fixup = ax88179_rx_fixup,
1840	.tx_fixup = ax88179_tx_fixup,
1841};
1842
1843static const struct driver_info sitecom_info = {
1844	.description = "Sitecom USB 3.0 to Gigabit Adapter",
1845	.bind = ax88179_bind,
1846	.unbind = ax88179_unbind,
1847	.status = ax88179_status,
1848	.link_reset = ax88179_link_reset,
1849	.reset = ax88179_reset,
1850	.stop = ax88179_stop,
1851	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1852	.rx_fixup = ax88179_rx_fixup,
1853	.tx_fixup = ax88179_tx_fixup,
1854};
1855
1856static const struct driver_info samsung_info = {
1857	.description = "Samsung USB Ethernet Adapter",
1858	.bind = ax88179_bind,
1859	.unbind = ax88179_unbind,
1860	.status = ax88179_status,
1861	.link_reset = ax88179_link_reset,
1862	.reset = ax88179_reset,
1863	.stop = ax88179_stop,
1864	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1865	.rx_fixup = ax88179_rx_fixup,
1866	.tx_fixup = ax88179_tx_fixup,
1867};
1868
1869static const struct driver_info lenovo_info = {
1870	.description = "Lenovo OneLinkDock Gigabit LAN",
1871	.bind = ax88179_bind,
1872	.unbind = ax88179_unbind,
1873	.status = ax88179_status,
1874	.link_reset = ax88179_link_reset,
1875	.reset = ax88179_reset,
1876	.stop = ax88179_stop,
1877	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1878	.rx_fixup = ax88179_rx_fixup,
1879	.tx_fixup = ax88179_tx_fixup,
1880};
1881
1882static const struct driver_info belkin_info = {
1883	.description = "Belkin USB Ethernet Adapter",
1884	.bind	= ax88179_bind,
1885	.unbind = ax88179_unbind,
1886	.status = ax88179_status,
1887	.link_reset = ax88179_link_reset,
1888	.reset	= ax88179_reset,
1889	.stop	= ax88179_stop,
1890	.flags	= FLAG_ETHER | FLAG_FRAMING_AX,
1891	.rx_fixup = ax88179_rx_fixup,
1892	.tx_fixup = ax88179_tx_fixup,
1893};
1894
1895static const struct driver_info toshiba_info = {
1896	.description = "Toshiba USB Ethernet Adapter",
1897	.bind	= ax88179_bind,
1898	.unbind = ax88179_unbind,
1899	.status = ax88179_status,
1900	.link_reset = ax88179_link_reset,
1901	.reset	= ax88179_reset,
1902	.stop = ax88179_stop,
1903	.flags	= FLAG_ETHER | FLAG_FRAMING_AX,
1904	.rx_fixup = ax88179_rx_fixup,
1905	.tx_fixup = ax88179_tx_fixup,
1906};
1907
1908static const struct driver_info mct_info = {
1909	.description = "MCT USB 3.0 Gigabit Ethernet Adapter",
1910	.bind	= ax88179_bind,
1911	.unbind	= ax88179_unbind,
1912	.status	= ax88179_status,
1913	.link_reset = ax88179_link_reset,
1914	.reset	= ax88179_reset,
1915	.stop	= ax88179_stop,
1916	.flags	= FLAG_ETHER | FLAG_FRAMING_AX,
1917	.rx_fixup = ax88179_rx_fixup,
1918	.tx_fixup = ax88179_tx_fixup,
1919};
1920
1921static const struct usb_device_id products[] = {
1922{
1923	/* ASIX AX88179 10/100/1000 */
1924	USB_DEVICE(0x0b95, 0x1790),
1925	.driver_info = (unsigned long)&ax88179_info,
1926}, {
1927	/* ASIX AX88178A 10/100/1000 */
1928	USB_DEVICE(0x0b95, 0x178a),
1929	.driver_info = (unsigned long)&ax88178a_info,
1930}, {
1931	/* Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge Controller */
1932	USB_DEVICE(0x04b4, 0x3610),
1933	.driver_info = (unsigned long)&cypress_GX3_info,
1934}, {
1935	/* D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter */
1936	USB_DEVICE(0x2001, 0x4a00),
1937	.driver_info = (unsigned long)&dlink_dub1312_info,
1938}, {
1939	/* Sitecom USB 3.0 to Gigabit Adapter */
1940	USB_DEVICE(0x0df6, 0x0072),
1941	.driver_info = (unsigned long)&sitecom_info,
1942}, {
1943	/* Samsung USB Ethernet Adapter */
1944	USB_DEVICE(0x04e8, 0xa100),
1945	.driver_info = (unsigned long)&samsung_info,
1946}, {
1947	/* Lenovo OneLinkDock Gigabit LAN */
1948	USB_DEVICE(0x17ef, 0x304b),
1949	.driver_info = (unsigned long)&lenovo_info,
1950}, {
1951	/* Belkin B2B128 USB 3.0 Hub + Gigabit Ethernet Adapter */
1952	USB_DEVICE(0x050d, 0x0128),
1953	.driver_info = (unsigned long)&belkin_info,
1954}, {
1955	/* Toshiba USB 3.0 GBit Ethernet Adapter */
1956	USB_DEVICE(0x0930, 0x0a13),
1957	.driver_info = (unsigned long)&toshiba_info,
1958}, {
1959	/* Magic Control Technology U3-A9003 USB 3.0 Gigabit Ethernet Adapter */
1960	USB_DEVICE(0x0711, 0x0179),
1961	.driver_info = (unsigned long)&mct_info,
1962},
1963	{ },
1964};
1965MODULE_DEVICE_TABLE(usb, products);
1966
1967static struct usb_driver ax88179_178a_driver = {
1968	.name =		"ax88179_178a",
1969	.id_table =	products,
1970	.probe =	usbnet_probe,
1971	.suspend =	ax88179_suspend,
1972	.resume =	ax88179_resume,
1973	.reset_resume =	ax88179_resume,
1974	.disconnect =	usbnet_disconnect,
1975	.supports_autosuspend = 1,
1976	.disable_hub_initiated_lpm = 1,
1977};
1978
1979module_usb_driver(ax88179_178a_driver);
1980
1981MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
1982MODULE_LICENSE("GPL");
1983