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1 | // SPDX-License-Identifier: GPL-2.0+ | |
2 | /* | |
3 | * Copyright (C) 2015 Microchip Technology | |
4 | */ | |
5 | #include <linux/version.h> | |
6 | #include <linux/module.h> | |
7 | #include <linux/netdevice.h> | |
8 | #include <linux/etherdevice.h> | |
9 | #include <linux/ethtool.h> | |
10 | #include <linux/usb.h> | |
11 | #include <linux/crc32.h> | |
12 | #include <linux/signal.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/if_vlan.h> | |
15 | #include <linux/uaccess.h> | |
16 | #include <linux/linkmode.h> | |
17 | #include <linux/list.h> | |
18 | #include <linux/ip.h> | |
19 | #include <linux/ipv6.h> | |
20 | #include <linux/mdio.h> | |
21 | #include <linux/phy.h> | |
22 | #include <net/ip6_checksum.h> | |
23 | #include <net/vxlan.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/irqdomain.h> | |
26 | #include <linux/irq.h> | |
27 | #include <linux/irqchip/chained_irq.h> | |
28 | #include <linux/microchipphy.h> | |
29 | #include <linux/phy_fixed.h> | |
30 | #include <linux/of_mdio.h> | |
31 | #include <linux/of_net.h> | |
32 | #include "lan78xx.h" | |
33 | ||
34 | #define DRIVER_AUTHOR "WOOJUNG HUH <woojung.huh@microchip.com>" | |
35 | #define DRIVER_DESC "LAN78XX USB 3.0 Gigabit Ethernet Devices" | |
36 | #define DRIVER_NAME "lan78xx" | |
37 | ||
38 | #define TX_TIMEOUT_JIFFIES (5 * HZ) | |
39 | #define THROTTLE_JIFFIES (HZ / 8) | |
40 | #define UNLINK_TIMEOUT_MS 3 | |
41 | ||
42 | #define RX_MAX_QUEUE_MEMORY (60 * 1518) | |
43 | ||
44 | #define SS_USB_PKT_SIZE (1024) | |
45 | #define HS_USB_PKT_SIZE (512) | |
46 | #define FS_USB_PKT_SIZE (64) | |
47 | ||
48 | #define MAX_RX_FIFO_SIZE (12 * 1024) | |
49 | #define MAX_TX_FIFO_SIZE (12 * 1024) | |
50 | #define DEFAULT_BURST_CAP_SIZE (MAX_TX_FIFO_SIZE) | |
51 | #define DEFAULT_BULK_IN_DELAY (0x0800) | |
52 | #define MAX_SINGLE_PACKET_SIZE (9000) | |
53 | #define DEFAULT_TX_CSUM_ENABLE (true) | |
54 | #define DEFAULT_RX_CSUM_ENABLE (true) | |
55 | #define DEFAULT_TSO_CSUM_ENABLE (true) | |
56 | #define DEFAULT_VLAN_FILTER_ENABLE (true) | |
57 | #define DEFAULT_VLAN_RX_OFFLOAD (true) | |
58 | #define TX_OVERHEAD (8) | |
59 | #define RXW_PADDING 2 | |
60 | ||
61 | #define LAN78XX_USB_VENDOR_ID (0x0424) | |
62 | #define LAN7800_USB_PRODUCT_ID (0x7800) | |
63 | #define LAN7850_USB_PRODUCT_ID (0x7850) | |
64 | #define LAN7801_USB_PRODUCT_ID (0x7801) | |
65 | #define LAN78XX_EEPROM_MAGIC (0x78A5) | |
66 | #define LAN78XX_OTP_MAGIC (0x78F3) | |
67 | ||
68 | #define MII_READ 1 | |
69 | #define MII_WRITE 0 | |
70 | ||
71 | #define EEPROM_INDICATOR (0xA5) | |
72 | #define EEPROM_MAC_OFFSET (0x01) | |
73 | #define MAX_EEPROM_SIZE 512 | |
74 | #define OTP_INDICATOR_1 (0xF3) | |
75 | #define OTP_INDICATOR_2 (0xF7) | |
76 | ||
77 | #define WAKE_ALL (WAKE_PHY | WAKE_UCAST | \ | |
78 | WAKE_MCAST | WAKE_BCAST | \ | |
79 | WAKE_ARP | WAKE_MAGIC) | |
80 | ||
81 | /* USB related defines */ | |
82 | #define BULK_IN_PIPE 1 | |
83 | #define BULK_OUT_PIPE 2 | |
84 | ||
85 | /* default autosuspend delay (mSec)*/ | |
86 | #define DEFAULT_AUTOSUSPEND_DELAY (10 * 1000) | |
87 | ||
88 | /* statistic update interval (mSec) */ | |
89 | #define STAT_UPDATE_TIMER (1 * 1000) | |
90 | ||
91 | /* defines interrupts from interrupt EP */ | |
92 | #define MAX_INT_EP (32) | |
93 | #define INT_EP_INTEP (31) | |
94 | #define INT_EP_OTP_WR_DONE (28) | |
95 | #define INT_EP_EEE_TX_LPI_START (26) | |
96 | #define INT_EP_EEE_TX_LPI_STOP (25) | |
97 | #define INT_EP_EEE_RX_LPI (24) | |
98 | #define INT_EP_MAC_RESET_TIMEOUT (23) | |
99 | #define INT_EP_RDFO (22) | |
100 | #define INT_EP_TXE (21) | |
101 | #define INT_EP_USB_STATUS (20) | |
102 | #define INT_EP_TX_DIS (19) | |
103 | #define INT_EP_RX_DIS (18) | |
104 | #define INT_EP_PHY (17) | |
105 | #define INT_EP_DP (16) | |
106 | #define INT_EP_MAC_ERR (15) | |
107 | #define INT_EP_TDFU (14) | |
108 | #define INT_EP_TDFO (13) | |
109 | #define INT_EP_UTX (12) | |
110 | #define INT_EP_GPIO_11 (11) | |
111 | #define INT_EP_GPIO_10 (10) | |
112 | #define INT_EP_GPIO_9 (9) | |
113 | #define INT_EP_GPIO_8 (8) | |
114 | #define INT_EP_GPIO_7 (7) | |
115 | #define INT_EP_GPIO_6 (6) | |
116 | #define INT_EP_GPIO_5 (5) | |
117 | #define INT_EP_GPIO_4 (4) | |
118 | #define INT_EP_GPIO_3 (3) | |
119 | #define INT_EP_GPIO_2 (2) | |
120 | #define INT_EP_GPIO_1 (1) | |
121 | #define INT_EP_GPIO_0 (0) | |
122 | ||
123 | static const char lan78xx_gstrings[][ETH_GSTRING_LEN] = { | |
124 | "RX FCS Errors", | |
125 | "RX Alignment Errors", | |
126 | "Rx Fragment Errors", | |
127 | "RX Jabber Errors", | |
128 | "RX Undersize Frame Errors", | |
129 | "RX Oversize Frame Errors", | |
130 | "RX Dropped Frames", | |
131 | "RX Unicast Byte Count", | |
132 | "RX Broadcast Byte Count", | |
133 | "RX Multicast Byte Count", | |
134 | "RX Unicast Frames", | |
135 | "RX Broadcast Frames", | |
136 | "RX Multicast Frames", | |
137 | "RX Pause Frames", | |
138 | "RX 64 Byte Frames", | |
139 | "RX 65 - 127 Byte Frames", | |
140 | "RX 128 - 255 Byte Frames", | |
141 | "RX 256 - 511 Bytes Frames", | |
142 | "RX 512 - 1023 Byte Frames", | |
143 | "RX 1024 - 1518 Byte Frames", | |
144 | "RX Greater 1518 Byte Frames", | |
145 | "EEE RX LPI Transitions", | |
146 | "EEE RX LPI Time", | |
147 | "TX FCS Errors", | |
148 | "TX Excess Deferral Errors", | |
149 | "TX Carrier Errors", | |
150 | "TX Bad Byte Count", | |
151 | "TX Single Collisions", | |
152 | "TX Multiple Collisions", | |
153 | "TX Excessive Collision", | |
154 | "TX Late Collisions", | |
155 | "TX Unicast Byte Count", | |
156 | "TX Broadcast Byte Count", | |
157 | "TX Multicast Byte Count", | |
158 | "TX Unicast Frames", | |
159 | "TX Broadcast Frames", | |
160 | "TX Multicast Frames", | |
161 | "TX Pause Frames", | |
162 | "TX 64 Byte Frames", | |
163 | "TX 65 - 127 Byte Frames", | |
164 | "TX 128 - 255 Byte Frames", | |
165 | "TX 256 - 511 Bytes Frames", | |
166 | "TX 512 - 1023 Byte Frames", | |
167 | "TX 1024 - 1518 Byte Frames", | |
168 | "TX Greater 1518 Byte Frames", | |
169 | "EEE TX LPI Transitions", | |
170 | "EEE TX LPI Time", | |
171 | }; | |
172 | ||
173 | struct lan78xx_statstage { | |
174 | u32 rx_fcs_errors; | |
175 | u32 rx_alignment_errors; | |
176 | u32 rx_fragment_errors; | |
177 | u32 rx_jabber_errors; | |
178 | u32 rx_undersize_frame_errors; | |
179 | u32 rx_oversize_frame_errors; | |
180 | u32 rx_dropped_frames; | |
181 | u32 rx_unicast_byte_count; | |
182 | u32 rx_broadcast_byte_count; | |
183 | u32 rx_multicast_byte_count; | |
184 | u32 rx_unicast_frames; | |
185 | u32 rx_broadcast_frames; | |
186 | u32 rx_multicast_frames; | |
187 | u32 rx_pause_frames; | |
188 | u32 rx_64_byte_frames; | |
189 | u32 rx_65_127_byte_frames; | |
190 | u32 rx_128_255_byte_frames; | |
191 | u32 rx_256_511_bytes_frames; | |
192 | u32 rx_512_1023_byte_frames; | |
193 | u32 rx_1024_1518_byte_frames; | |
194 | u32 rx_greater_1518_byte_frames; | |
195 | u32 eee_rx_lpi_transitions; | |
196 | u32 eee_rx_lpi_time; | |
197 | u32 tx_fcs_errors; | |
198 | u32 tx_excess_deferral_errors; | |
199 | u32 tx_carrier_errors; | |
200 | u32 tx_bad_byte_count; | |
201 | u32 tx_single_collisions; | |
202 | u32 tx_multiple_collisions; | |
203 | u32 tx_excessive_collision; | |
204 | u32 tx_late_collisions; | |
205 | u32 tx_unicast_byte_count; | |
206 | u32 tx_broadcast_byte_count; | |
207 | u32 tx_multicast_byte_count; | |
208 | u32 tx_unicast_frames; | |
209 | u32 tx_broadcast_frames; | |
210 | u32 tx_multicast_frames; | |
211 | u32 tx_pause_frames; | |
212 | u32 tx_64_byte_frames; | |
213 | u32 tx_65_127_byte_frames; | |
214 | u32 tx_128_255_byte_frames; | |
215 | u32 tx_256_511_bytes_frames; | |
216 | u32 tx_512_1023_byte_frames; | |
217 | u32 tx_1024_1518_byte_frames; | |
218 | u32 tx_greater_1518_byte_frames; | |
219 | u32 eee_tx_lpi_transitions; | |
220 | u32 eee_tx_lpi_time; | |
221 | }; | |
222 | ||
223 | struct lan78xx_statstage64 { | |
224 | u64 rx_fcs_errors; | |
225 | u64 rx_alignment_errors; | |
226 | u64 rx_fragment_errors; | |
227 | u64 rx_jabber_errors; | |
228 | u64 rx_undersize_frame_errors; | |
229 | u64 rx_oversize_frame_errors; | |
230 | u64 rx_dropped_frames; | |
231 | u64 rx_unicast_byte_count; | |
232 | u64 rx_broadcast_byte_count; | |
233 | u64 rx_multicast_byte_count; | |
234 | u64 rx_unicast_frames; | |
235 | u64 rx_broadcast_frames; | |
236 | u64 rx_multicast_frames; | |
237 | u64 rx_pause_frames; | |
238 | u64 rx_64_byte_frames; | |
239 | u64 rx_65_127_byte_frames; | |
240 | u64 rx_128_255_byte_frames; | |
241 | u64 rx_256_511_bytes_frames; | |
242 | u64 rx_512_1023_byte_frames; | |
243 | u64 rx_1024_1518_byte_frames; | |
244 | u64 rx_greater_1518_byte_frames; | |
245 | u64 eee_rx_lpi_transitions; | |
246 | u64 eee_rx_lpi_time; | |
247 | u64 tx_fcs_errors; | |
248 | u64 tx_excess_deferral_errors; | |
249 | u64 tx_carrier_errors; | |
250 | u64 tx_bad_byte_count; | |
251 | u64 tx_single_collisions; | |
252 | u64 tx_multiple_collisions; | |
253 | u64 tx_excessive_collision; | |
254 | u64 tx_late_collisions; | |
255 | u64 tx_unicast_byte_count; | |
256 | u64 tx_broadcast_byte_count; | |
257 | u64 tx_multicast_byte_count; | |
258 | u64 tx_unicast_frames; | |
259 | u64 tx_broadcast_frames; | |
260 | u64 tx_multicast_frames; | |
261 | u64 tx_pause_frames; | |
262 | u64 tx_64_byte_frames; | |
263 | u64 tx_65_127_byte_frames; | |
264 | u64 tx_128_255_byte_frames; | |
265 | u64 tx_256_511_bytes_frames; | |
266 | u64 tx_512_1023_byte_frames; | |
267 | u64 tx_1024_1518_byte_frames; | |
268 | u64 tx_greater_1518_byte_frames; | |
269 | u64 eee_tx_lpi_transitions; | |
270 | u64 eee_tx_lpi_time; | |
271 | }; | |
272 | ||
273 | static u32 lan78xx_regs[] = { | |
274 | ID_REV, | |
275 | INT_STS, | |
276 | HW_CFG, | |
277 | PMT_CTL, | |
278 | E2P_CMD, | |
279 | E2P_DATA, | |
280 | USB_STATUS, | |
281 | VLAN_TYPE, | |
282 | MAC_CR, | |
283 | MAC_RX, | |
284 | MAC_TX, | |
285 | FLOW, | |
286 | ERR_STS, | |
287 | MII_ACC, | |
288 | MII_DATA, | |
289 | EEE_TX_LPI_REQ_DLY, | |
290 | EEE_TW_TX_SYS, | |
291 | EEE_TX_LPI_REM_DLY, | |
292 | WUCSR | |
293 | }; | |
294 | ||
295 | #define PHY_REG_SIZE (32 * sizeof(u32)) | |
296 | ||
297 | struct lan78xx_net; | |
298 | ||
299 | struct lan78xx_priv { | |
300 | struct lan78xx_net *dev; | |
301 | u32 rfe_ctl; | |
302 | u32 mchash_table[DP_SEL_VHF_HASH_LEN]; /* multicat hash table */ | |
303 | u32 pfilter_table[NUM_OF_MAF][2]; /* perfect filter table */ | |
304 | u32 vlan_table[DP_SEL_VHF_VLAN_LEN]; | |
305 | struct mutex dataport_mutex; /* for dataport access */ | |
306 | spinlock_t rfe_ctl_lock; /* for rfe register access */ | |
307 | struct work_struct set_multicast; | |
308 | struct work_struct set_vlan; | |
309 | u32 wol; | |
310 | }; | |
311 | ||
312 | enum skb_state { | |
313 | illegal = 0, | |
314 | tx_start, | |
315 | tx_done, | |
316 | rx_start, | |
317 | rx_done, | |
318 | rx_cleanup, | |
319 | unlink_start | |
320 | }; | |
321 | ||
322 | struct skb_data { /* skb->cb is one of these */ | |
323 | struct urb *urb; | |
324 | struct lan78xx_net *dev; | |
325 | enum skb_state state; | |
326 | size_t length; | |
327 | int num_of_packet; | |
328 | }; | |
329 | ||
330 | struct usb_context { | |
331 | struct usb_ctrlrequest req; | |
332 | struct lan78xx_net *dev; | |
333 | }; | |
334 | ||
335 | #define EVENT_TX_HALT 0 | |
336 | #define EVENT_RX_HALT 1 | |
337 | #define EVENT_RX_MEMORY 2 | |
338 | #define EVENT_STS_SPLIT 3 | |
339 | #define EVENT_LINK_RESET 4 | |
340 | #define EVENT_RX_PAUSED 5 | |
341 | #define EVENT_DEV_WAKING 6 | |
342 | #define EVENT_DEV_ASLEEP 7 | |
343 | #define EVENT_DEV_OPEN 8 | |
344 | #define EVENT_STAT_UPDATE 9 | |
345 | ||
346 | struct statstage { | |
347 | struct mutex access_lock; /* for stats access */ | |
348 | struct lan78xx_statstage saved; | |
349 | struct lan78xx_statstage rollover_count; | |
350 | struct lan78xx_statstage rollover_max; | |
351 | struct lan78xx_statstage64 curr_stat; | |
352 | }; | |
353 | ||
354 | struct irq_domain_data { | |
355 | struct irq_domain *irqdomain; | |
356 | unsigned int phyirq; | |
357 | struct irq_chip *irqchip; | |
358 | irq_flow_handler_t irq_handler; | |
359 | u32 irqenable; | |
360 | struct mutex irq_lock; /* for irq bus access */ | |
361 | }; | |
362 | ||
363 | struct lan78xx_net { | |
364 | struct net_device *net; | |
365 | struct usb_device *udev; | |
366 | struct usb_interface *intf; | |
367 | void *driver_priv; | |
368 | ||
369 | int rx_qlen; | |
370 | int tx_qlen; | |
371 | struct sk_buff_head rxq; | |
372 | struct sk_buff_head txq; | |
373 | struct sk_buff_head done; | |
374 | struct sk_buff_head rxq_pause; | |
375 | struct sk_buff_head txq_pend; | |
376 | ||
377 | struct tasklet_struct bh; | |
378 | struct delayed_work wq; | |
379 | ||
380 | int msg_enable; | |
381 | ||
382 | struct urb *urb_intr; | |
383 | struct usb_anchor deferred; | |
384 | ||
385 | struct mutex phy_mutex; /* for phy access */ | |
386 | unsigned pipe_in, pipe_out, pipe_intr; | |
387 | ||
388 | u32 hard_mtu; /* count any extra framing */ | |
389 | size_t rx_urb_size; /* size for rx urbs */ | |
390 | ||
391 | unsigned long flags; | |
392 | ||
393 | wait_queue_head_t *wait; | |
394 | unsigned char suspend_count; | |
395 | ||
396 | unsigned maxpacket; | |
397 | struct timer_list delay; | |
398 | struct timer_list stat_monitor; | |
399 | ||
400 | unsigned long data[5]; | |
401 | ||
402 | int link_on; | |
403 | u8 mdix_ctrl; | |
404 | ||
405 | u32 chipid; | |
406 | u32 chiprev; | |
407 | struct mii_bus *mdiobus; | |
408 | phy_interface_t interface; | |
409 | ||
410 | int fc_autoneg; | |
411 | u8 fc_request_control; | |
412 | ||
413 | int delta; | |
414 | struct statstage stats; | |
415 | ||
416 | struct irq_domain_data domain_data; | |
417 | }; | |
418 | ||
419 | /* define external phy id */ | |
420 | #define PHY_LAN8835 (0x0007C130) | |
421 | #define PHY_KSZ9031RNX (0x00221620) | |
422 | ||
423 | /* use ethtool to change the level for any given device */ | |
424 | static int msg_level = -1; | |
425 | module_param(msg_level, int, 0); | |
426 | MODULE_PARM_DESC(msg_level, "Override default message level"); | |
427 | ||
428 | static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data) | |
429 | { | |
430 | u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL); | |
431 | int ret; | |
432 | ||
433 | if (!buf) | |
434 | return -ENOMEM; | |
435 | ||
436 | ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), | |
437 | USB_VENDOR_REQUEST_READ_REGISTER, | |
438 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
439 | 0, index, buf, 4, USB_CTRL_GET_TIMEOUT); | |
440 | if (likely(ret >= 0)) { | |
441 | le32_to_cpus(buf); | |
442 | *data = *buf; | |
443 | } else { | |
444 | netdev_warn(dev->net, | |
445 | "Failed to read register index 0x%08x. ret = %d", | |
446 | index, ret); | |
447 | } | |
448 | ||
449 | kfree(buf); | |
450 | ||
451 | return ret; | |
452 | } | |
453 | ||
454 | static int lan78xx_write_reg(struct lan78xx_net *dev, u32 index, u32 data) | |
455 | { | |
456 | u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL); | |
457 | int ret; | |
458 | ||
459 | if (!buf) | |
460 | return -ENOMEM; | |
461 | ||
462 | *buf = data; | |
463 | cpu_to_le32s(buf); | |
464 | ||
465 | ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), | |
466 | USB_VENDOR_REQUEST_WRITE_REGISTER, | |
467 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
468 | 0, index, buf, 4, USB_CTRL_SET_TIMEOUT); | |
469 | if (unlikely(ret < 0)) { | |
470 | netdev_warn(dev->net, | |
471 | "Failed to write register index 0x%08x. ret = %d", | |
472 | index, ret); | |
473 | } | |
474 | ||
475 | kfree(buf); | |
476 | ||
477 | return ret; | |
478 | } | |
479 | ||
480 | static int lan78xx_read_stats(struct lan78xx_net *dev, | |
481 | struct lan78xx_statstage *data) | |
482 | { | |
483 | int ret = 0; | |
484 | int i; | |
485 | struct lan78xx_statstage *stats; | |
486 | u32 *src; | |
487 | u32 *dst; | |
488 | ||
489 | stats = kmalloc(sizeof(*stats), GFP_KERNEL); | |
490 | if (!stats) | |
491 | return -ENOMEM; | |
492 | ||
493 | ret = usb_control_msg(dev->udev, | |
494 | usb_rcvctrlpipe(dev->udev, 0), | |
495 | USB_VENDOR_REQUEST_GET_STATS, | |
496 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
497 | 0, | |
498 | 0, | |
499 | (void *)stats, | |
500 | sizeof(*stats), | |
501 | USB_CTRL_SET_TIMEOUT); | |
502 | if (likely(ret >= 0)) { | |
503 | src = (u32 *)stats; | |
504 | dst = (u32 *)data; | |
505 | for (i = 0; i < sizeof(*stats)/sizeof(u32); i++) { | |
506 | le32_to_cpus(&src[i]); | |
507 | dst[i] = src[i]; | |
508 | } | |
509 | } else { | |
510 | netdev_warn(dev->net, | |
511 | "Failed to read stat ret = %d", ret); | |
512 | } | |
513 | ||
514 | kfree(stats); | |
515 | ||
516 | return ret; | |
517 | } | |
518 | ||
519 | #define check_counter_rollover(struct1, dev_stats, member) { \ | |
520 | if (struct1->member < dev_stats.saved.member) \ | |
521 | dev_stats.rollover_count.member++; \ | |
522 | } | |
523 | ||
524 | static void lan78xx_check_stat_rollover(struct lan78xx_net *dev, | |
525 | struct lan78xx_statstage *stats) | |
526 | { | |
527 | check_counter_rollover(stats, dev->stats, rx_fcs_errors); | |
528 | check_counter_rollover(stats, dev->stats, rx_alignment_errors); | |
529 | check_counter_rollover(stats, dev->stats, rx_fragment_errors); | |
530 | check_counter_rollover(stats, dev->stats, rx_jabber_errors); | |
531 | check_counter_rollover(stats, dev->stats, rx_undersize_frame_errors); | |
532 | check_counter_rollover(stats, dev->stats, rx_oversize_frame_errors); | |
533 | check_counter_rollover(stats, dev->stats, rx_dropped_frames); | |
534 | check_counter_rollover(stats, dev->stats, rx_unicast_byte_count); | |
535 | check_counter_rollover(stats, dev->stats, rx_broadcast_byte_count); | |
536 | check_counter_rollover(stats, dev->stats, rx_multicast_byte_count); | |
537 | check_counter_rollover(stats, dev->stats, rx_unicast_frames); | |
538 | check_counter_rollover(stats, dev->stats, rx_broadcast_frames); | |
539 | check_counter_rollover(stats, dev->stats, rx_multicast_frames); | |
540 | check_counter_rollover(stats, dev->stats, rx_pause_frames); | |
541 | check_counter_rollover(stats, dev->stats, rx_64_byte_frames); | |
542 | check_counter_rollover(stats, dev->stats, rx_65_127_byte_frames); | |
543 | check_counter_rollover(stats, dev->stats, rx_128_255_byte_frames); | |
544 | check_counter_rollover(stats, dev->stats, rx_256_511_bytes_frames); | |
545 | check_counter_rollover(stats, dev->stats, rx_512_1023_byte_frames); | |
546 | check_counter_rollover(stats, dev->stats, rx_1024_1518_byte_frames); | |
547 | check_counter_rollover(stats, dev->stats, rx_greater_1518_byte_frames); | |
548 | check_counter_rollover(stats, dev->stats, eee_rx_lpi_transitions); | |
549 | check_counter_rollover(stats, dev->stats, eee_rx_lpi_time); | |
550 | check_counter_rollover(stats, dev->stats, tx_fcs_errors); | |
551 | check_counter_rollover(stats, dev->stats, tx_excess_deferral_errors); | |
552 | check_counter_rollover(stats, dev->stats, tx_carrier_errors); | |
553 | check_counter_rollover(stats, dev->stats, tx_bad_byte_count); | |
554 | check_counter_rollover(stats, dev->stats, tx_single_collisions); | |
555 | check_counter_rollover(stats, dev->stats, tx_multiple_collisions); | |
556 | check_counter_rollover(stats, dev->stats, tx_excessive_collision); | |
557 | check_counter_rollover(stats, dev->stats, tx_late_collisions); | |
558 | check_counter_rollover(stats, dev->stats, tx_unicast_byte_count); | |
559 | check_counter_rollover(stats, dev->stats, tx_broadcast_byte_count); | |
560 | check_counter_rollover(stats, dev->stats, tx_multicast_byte_count); | |
561 | check_counter_rollover(stats, dev->stats, tx_unicast_frames); | |
562 | check_counter_rollover(stats, dev->stats, tx_broadcast_frames); | |
563 | check_counter_rollover(stats, dev->stats, tx_multicast_frames); | |
564 | check_counter_rollover(stats, dev->stats, tx_pause_frames); | |
565 | check_counter_rollover(stats, dev->stats, tx_64_byte_frames); | |
566 | check_counter_rollover(stats, dev->stats, tx_65_127_byte_frames); | |
567 | check_counter_rollover(stats, dev->stats, tx_128_255_byte_frames); | |
568 | check_counter_rollover(stats, dev->stats, tx_256_511_bytes_frames); | |
569 | check_counter_rollover(stats, dev->stats, tx_512_1023_byte_frames); | |
570 | check_counter_rollover(stats, dev->stats, tx_1024_1518_byte_frames); | |
571 | check_counter_rollover(stats, dev->stats, tx_greater_1518_byte_frames); | |
572 | check_counter_rollover(stats, dev->stats, eee_tx_lpi_transitions); | |
573 | check_counter_rollover(stats, dev->stats, eee_tx_lpi_time); | |
574 | ||
575 | memcpy(&dev->stats.saved, stats, sizeof(struct lan78xx_statstage)); | |
576 | } | |
577 | ||
578 | static void lan78xx_update_stats(struct lan78xx_net *dev) | |
579 | { | |
580 | u32 *p, *count, *max; | |
581 | u64 *data; | |
582 | int i; | |
583 | struct lan78xx_statstage lan78xx_stats; | |
584 | ||
585 | if (usb_autopm_get_interface(dev->intf) < 0) | |
586 | return; | |
587 | ||
588 | p = (u32 *)&lan78xx_stats; | |
589 | count = (u32 *)&dev->stats.rollover_count; | |
590 | max = (u32 *)&dev->stats.rollover_max; | |
591 | data = (u64 *)&dev->stats.curr_stat; | |
592 | ||
593 | mutex_lock(&dev->stats.access_lock); | |
594 | ||
595 | if (lan78xx_read_stats(dev, &lan78xx_stats) > 0) | |
596 | lan78xx_check_stat_rollover(dev, &lan78xx_stats); | |
597 | ||
598 | for (i = 0; i < (sizeof(lan78xx_stats) / (sizeof(u32))); i++) | |
599 | data[i] = (u64)p[i] + ((u64)count[i] * ((u64)max[i] + 1)); | |
600 | ||
601 | mutex_unlock(&dev->stats.access_lock); | |
602 | ||
603 | usb_autopm_put_interface(dev->intf); | |
604 | } | |
605 | ||
606 | /* Loop until the read is completed with timeout called with phy_mutex held */ | |
607 | static int lan78xx_phy_wait_not_busy(struct lan78xx_net *dev) | |
608 | { | |
609 | unsigned long start_time = jiffies; | |
610 | u32 val; | |
611 | int ret; | |
612 | ||
613 | do { | |
614 | ret = lan78xx_read_reg(dev, MII_ACC, &val); | |
615 | if (unlikely(ret < 0)) | |
616 | return -EIO; | |
617 | ||
618 | if (!(val & MII_ACC_MII_BUSY_)) | |
619 | return 0; | |
620 | } while (!time_after(jiffies, start_time + HZ)); | |
621 | ||
622 | return -EIO; | |
623 | } | |
624 | ||
625 | static inline u32 mii_access(int id, int index, int read) | |
626 | { | |
627 | u32 ret; | |
628 | ||
629 | ret = ((u32)id << MII_ACC_PHY_ADDR_SHIFT_) & MII_ACC_PHY_ADDR_MASK_; | |
630 | ret |= ((u32)index << MII_ACC_MIIRINDA_SHIFT_) & MII_ACC_MIIRINDA_MASK_; | |
631 | if (read) | |
632 | ret |= MII_ACC_MII_READ_; | |
633 | else | |
634 | ret |= MII_ACC_MII_WRITE_; | |
635 | ret |= MII_ACC_MII_BUSY_; | |
636 | ||
637 | return ret; | |
638 | } | |
639 | ||
640 | static int lan78xx_wait_eeprom(struct lan78xx_net *dev) | |
641 | { | |
642 | unsigned long start_time = jiffies; | |
643 | u32 val; | |
644 | int ret; | |
645 | ||
646 | do { | |
647 | ret = lan78xx_read_reg(dev, E2P_CMD, &val); | |
648 | if (unlikely(ret < 0)) | |
649 | return -EIO; | |
650 | ||
651 | if (!(val & E2P_CMD_EPC_BUSY_) || | |
652 | (val & E2P_CMD_EPC_TIMEOUT_)) | |
653 | break; | |
654 | usleep_range(40, 100); | |
655 | } while (!time_after(jiffies, start_time + HZ)); | |
656 | ||
657 | if (val & (E2P_CMD_EPC_TIMEOUT_ | E2P_CMD_EPC_BUSY_)) { | |
658 | netdev_warn(dev->net, "EEPROM read operation timeout"); | |
659 | return -EIO; | |
660 | } | |
661 | ||
662 | return 0; | |
663 | } | |
664 | ||
665 | static int lan78xx_eeprom_confirm_not_busy(struct lan78xx_net *dev) | |
666 | { | |
667 | unsigned long start_time = jiffies; | |
668 | u32 val; | |
669 | int ret; | |
670 | ||
671 | do { | |
672 | ret = lan78xx_read_reg(dev, E2P_CMD, &val); | |
673 | if (unlikely(ret < 0)) | |
674 | return -EIO; | |
675 | ||
676 | if (!(val & E2P_CMD_EPC_BUSY_)) | |
677 | return 0; | |
678 | ||
679 | usleep_range(40, 100); | |
680 | } while (!time_after(jiffies, start_time + HZ)); | |
681 | ||
682 | netdev_warn(dev->net, "EEPROM is busy"); | |
683 | return -EIO; | |
684 | } | |
685 | ||
686 | static int lan78xx_read_raw_eeprom(struct lan78xx_net *dev, u32 offset, | |
687 | u32 length, u8 *data) | |
688 | { | |
689 | u32 val; | |
690 | u32 saved; | |
691 | int i, ret; | |
692 | int retval; | |
693 | ||
694 | /* depends on chip, some EEPROM pins are muxed with LED function. | |
695 | * disable & restore LED function to access EEPROM. | |
696 | */ | |
697 | ret = lan78xx_read_reg(dev, HW_CFG, &val); | |
698 | saved = val; | |
699 | if (dev->chipid == ID_REV_CHIP_ID_7800_) { | |
700 | val &= ~(HW_CFG_LED1_EN_ | HW_CFG_LED0_EN_); | |
701 | ret = lan78xx_write_reg(dev, HW_CFG, val); | |
702 | } | |
703 | ||
704 | retval = lan78xx_eeprom_confirm_not_busy(dev); | |
705 | if (retval) | |
706 | return retval; | |
707 | ||
708 | for (i = 0; i < length; i++) { | |
709 | val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_READ_; | |
710 | val |= (offset & E2P_CMD_EPC_ADDR_MASK_); | |
711 | ret = lan78xx_write_reg(dev, E2P_CMD, val); | |
712 | if (unlikely(ret < 0)) { | |
713 | retval = -EIO; | |
714 | goto exit; | |
715 | } | |
716 | ||
717 | retval = lan78xx_wait_eeprom(dev); | |
718 | if (retval < 0) | |
719 | goto exit; | |
720 | ||
721 | ret = lan78xx_read_reg(dev, E2P_DATA, &val); | |
722 | if (unlikely(ret < 0)) { | |
723 | retval = -EIO; | |
724 | goto exit; | |
725 | } | |
726 | ||
727 | data[i] = val & 0xFF; | |
728 | offset++; | |
729 | } | |
730 | ||
731 | retval = 0; | |
732 | exit: | |
733 | if (dev->chipid == ID_REV_CHIP_ID_7800_) | |
734 | ret = lan78xx_write_reg(dev, HW_CFG, saved); | |
735 | ||
736 | return retval; | |
737 | } | |
738 | ||
739 | static int lan78xx_read_eeprom(struct lan78xx_net *dev, u32 offset, | |
740 | u32 length, u8 *data) | |
741 | { | |
742 | u8 sig; | |
743 | int ret; | |
744 | ||
745 | ret = lan78xx_read_raw_eeprom(dev, 0, 1, &sig); | |
746 | if ((ret == 0) && (sig == EEPROM_INDICATOR)) | |
747 | ret = lan78xx_read_raw_eeprom(dev, offset, length, data); | |
748 | else | |
749 | ret = -EINVAL; | |
750 | ||
751 | return ret; | |
752 | } | |
753 | ||
754 | static int lan78xx_write_raw_eeprom(struct lan78xx_net *dev, u32 offset, | |
755 | u32 length, u8 *data) | |
756 | { | |
757 | u32 val; | |
758 | u32 saved; | |
759 | int i, ret; | |
760 | int retval; | |
761 | ||
762 | /* depends on chip, some EEPROM pins are muxed with LED function. | |
763 | * disable & restore LED function to access EEPROM. | |
764 | */ | |
765 | ret = lan78xx_read_reg(dev, HW_CFG, &val); | |
766 | saved = val; | |
767 | if (dev->chipid == ID_REV_CHIP_ID_7800_) { | |
768 | val &= ~(HW_CFG_LED1_EN_ | HW_CFG_LED0_EN_); | |
769 | ret = lan78xx_write_reg(dev, HW_CFG, val); | |
770 | } | |
771 | ||
772 | retval = lan78xx_eeprom_confirm_not_busy(dev); | |
773 | if (retval) | |
774 | goto exit; | |
775 | ||
776 | /* Issue write/erase enable command */ | |
777 | val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_EWEN_; | |
778 | ret = lan78xx_write_reg(dev, E2P_CMD, val); | |
779 | if (unlikely(ret < 0)) { | |
780 | retval = -EIO; | |
781 | goto exit; | |
782 | } | |
783 | ||
784 | retval = lan78xx_wait_eeprom(dev); | |
785 | if (retval < 0) | |
786 | goto exit; | |
787 | ||
788 | for (i = 0; i < length; i++) { | |
789 | /* Fill data register */ | |
790 | val = data[i]; | |
791 | ret = lan78xx_write_reg(dev, E2P_DATA, val); | |
792 | if (ret < 0) { | |
793 | retval = -EIO; | |
794 | goto exit; | |
795 | } | |
796 | ||
797 | /* Send "write" command */ | |
798 | val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_WRITE_; | |
799 | val |= (offset & E2P_CMD_EPC_ADDR_MASK_); | |
800 | ret = lan78xx_write_reg(dev, E2P_CMD, val); | |
801 | if (ret < 0) { | |
802 | retval = -EIO; | |
803 | goto exit; | |
804 | } | |
805 | ||
806 | retval = lan78xx_wait_eeprom(dev); | |
807 | if (retval < 0) | |
808 | goto exit; | |
809 | ||
810 | offset++; | |
811 | } | |
812 | ||
813 | retval = 0; | |
814 | exit: | |
815 | if (dev->chipid == ID_REV_CHIP_ID_7800_) | |
816 | ret = lan78xx_write_reg(dev, HW_CFG, saved); | |
817 | ||
818 | return retval; | |
819 | } | |
820 | ||
821 | static int lan78xx_read_raw_otp(struct lan78xx_net *dev, u32 offset, | |
822 | u32 length, u8 *data) | |
823 | { | |
824 | int i; | |
825 | int ret; | |
826 | u32 buf; | |
827 | unsigned long timeout; | |
828 | ||
829 | ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); | |
830 | ||
831 | if (buf & OTP_PWR_DN_PWRDN_N_) { | |
832 | /* clear it and wait to be cleared */ | |
833 | ret = lan78xx_write_reg(dev, OTP_PWR_DN, 0); | |
834 | ||
835 | timeout = jiffies + HZ; | |
836 | do { | |
837 | usleep_range(1, 10); | |
838 | ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); | |
839 | if (time_after(jiffies, timeout)) { | |
840 | netdev_warn(dev->net, | |
841 | "timeout on OTP_PWR_DN"); | |
842 | return -EIO; | |
843 | } | |
844 | } while (buf & OTP_PWR_DN_PWRDN_N_); | |
845 | } | |
846 | ||
847 | for (i = 0; i < length; i++) { | |
848 | ret = lan78xx_write_reg(dev, OTP_ADDR1, | |
849 | ((offset + i) >> 8) & OTP_ADDR1_15_11); | |
850 | ret = lan78xx_write_reg(dev, OTP_ADDR2, | |
851 | ((offset + i) & OTP_ADDR2_10_3)); | |
852 | ||
853 | ret = lan78xx_write_reg(dev, OTP_FUNC_CMD, OTP_FUNC_CMD_READ_); | |
854 | ret = lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); | |
855 | ||
856 | timeout = jiffies + HZ; | |
857 | do { | |
858 | udelay(1); | |
859 | ret = lan78xx_read_reg(dev, OTP_STATUS, &buf); | |
860 | if (time_after(jiffies, timeout)) { | |
861 | netdev_warn(dev->net, | |
862 | "timeout on OTP_STATUS"); | |
863 | return -EIO; | |
864 | } | |
865 | } while (buf & OTP_STATUS_BUSY_); | |
866 | ||
867 | ret = lan78xx_read_reg(dev, OTP_RD_DATA, &buf); | |
868 | ||
869 | data[i] = (u8)(buf & 0xFF); | |
870 | } | |
871 | ||
872 | return 0; | |
873 | } | |
874 | ||
875 | static int lan78xx_write_raw_otp(struct lan78xx_net *dev, u32 offset, | |
876 | u32 length, u8 *data) | |
877 | { | |
878 | int i; | |
879 | int ret; | |
880 | u32 buf; | |
881 | unsigned long timeout; | |
882 | ||
883 | ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); | |
884 | ||
885 | if (buf & OTP_PWR_DN_PWRDN_N_) { | |
886 | /* clear it and wait to be cleared */ | |
887 | ret = lan78xx_write_reg(dev, OTP_PWR_DN, 0); | |
888 | ||
889 | timeout = jiffies + HZ; | |
890 | do { | |
891 | udelay(1); | |
892 | ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); | |
893 | if (time_after(jiffies, timeout)) { | |
894 | netdev_warn(dev->net, | |
895 | "timeout on OTP_PWR_DN completion"); | |
896 | return -EIO; | |
897 | } | |
898 | } while (buf & OTP_PWR_DN_PWRDN_N_); | |
899 | } | |
900 | ||
901 | /* set to BYTE program mode */ | |
902 | ret = lan78xx_write_reg(dev, OTP_PRGM_MODE, OTP_PRGM_MODE_BYTE_); | |
903 | ||
904 | for (i = 0; i < length; i++) { | |
905 | ret = lan78xx_write_reg(dev, OTP_ADDR1, | |
906 | ((offset + i) >> 8) & OTP_ADDR1_15_11); | |
907 | ret = lan78xx_write_reg(dev, OTP_ADDR2, | |
908 | ((offset + i) & OTP_ADDR2_10_3)); | |
909 | ret = lan78xx_write_reg(dev, OTP_PRGM_DATA, data[i]); | |
910 | ret = lan78xx_write_reg(dev, OTP_TST_CMD, OTP_TST_CMD_PRGVRFY_); | |
911 | ret = lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); | |
912 | ||
913 | timeout = jiffies + HZ; | |
914 | do { | |
915 | udelay(1); | |
916 | ret = lan78xx_read_reg(dev, OTP_STATUS, &buf); | |
917 | if (time_after(jiffies, timeout)) { | |
918 | netdev_warn(dev->net, | |
919 | "Timeout on OTP_STATUS completion"); | |
920 | return -EIO; | |
921 | } | |
922 | } while (buf & OTP_STATUS_BUSY_); | |
923 | } | |
924 | ||
925 | return 0; | |
926 | } | |
927 | ||
928 | static int lan78xx_read_otp(struct lan78xx_net *dev, u32 offset, | |
929 | u32 length, u8 *data) | |
930 | { | |
931 | u8 sig; | |
932 | int ret; | |
933 | ||
934 | ret = lan78xx_read_raw_otp(dev, 0, 1, &sig); | |
935 | ||
936 | if (ret == 0) { | |
937 | if (sig == OTP_INDICATOR_2) | |
938 | offset += 0x100; | |
939 | else if (sig != OTP_INDICATOR_1) | |
940 | ret = -EINVAL; | |
941 | if (!ret) | |
942 | ret = lan78xx_read_raw_otp(dev, offset, length, data); | |
943 | } | |
944 | ||
945 | return ret; | |
946 | } | |
947 | ||
948 | static int lan78xx_dataport_wait_not_busy(struct lan78xx_net *dev) | |
949 | { | |
950 | int i, ret; | |
951 | ||
952 | for (i = 0; i < 100; i++) { | |
953 | u32 dp_sel; | |
954 | ||
955 | ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel); | |
956 | if (unlikely(ret < 0)) | |
957 | return -EIO; | |
958 | ||
959 | if (dp_sel & DP_SEL_DPRDY_) | |
960 | return 0; | |
961 | ||
962 | usleep_range(40, 100); | |
963 | } | |
964 | ||
965 | netdev_warn(dev->net, "lan78xx_dataport_wait_not_busy timed out"); | |
966 | ||
967 | return -EIO; | |
968 | } | |
969 | ||
970 | static int lan78xx_dataport_write(struct lan78xx_net *dev, u32 ram_select, | |
971 | u32 addr, u32 length, u32 *buf) | |
972 | { | |
973 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
974 | u32 dp_sel; | |
975 | int i, ret; | |
976 | ||
977 | if (usb_autopm_get_interface(dev->intf) < 0) | |
978 | return 0; | |
979 | ||
980 | mutex_lock(&pdata->dataport_mutex); | |
981 | ||
982 | ret = lan78xx_dataport_wait_not_busy(dev); | |
983 | if (ret < 0) | |
984 | goto done; | |
985 | ||
986 | ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel); | |
987 | ||
988 | dp_sel &= ~DP_SEL_RSEL_MASK_; | |
989 | dp_sel |= ram_select; | |
990 | ret = lan78xx_write_reg(dev, DP_SEL, dp_sel); | |
991 | ||
992 | for (i = 0; i < length; i++) { | |
993 | ret = lan78xx_write_reg(dev, DP_ADDR, addr + i); | |
994 | ||
995 | ret = lan78xx_write_reg(dev, DP_DATA, buf[i]); | |
996 | ||
997 | ret = lan78xx_write_reg(dev, DP_CMD, DP_CMD_WRITE_); | |
998 | ||
999 | ret = lan78xx_dataport_wait_not_busy(dev); | |
1000 | if (ret < 0) | |
1001 | goto done; | |
1002 | } | |
1003 | ||
1004 | done: | |
1005 | mutex_unlock(&pdata->dataport_mutex); | |
1006 | usb_autopm_put_interface(dev->intf); | |
1007 | ||
1008 | return ret; | |
1009 | } | |
1010 | ||
1011 | static void lan78xx_set_addr_filter(struct lan78xx_priv *pdata, | |
1012 | int index, u8 addr[ETH_ALEN]) | |
1013 | { | |
1014 | u32 temp; | |
1015 | ||
1016 | if ((pdata) && (index > 0) && (index < NUM_OF_MAF)) { | |
1017 | temp = addr[3]; | |
1018 | temp = addr[2] | (temp << 8); | |
1019 | temp = addr[1] | (temp << 8); | |
1020 | temp = addr[0] | (temp << 8); | |
1021 | pdata->pfilter_table[index][1] = temp; | |
1022 | temp = addr[5]; | |
1023 | temp = addr[4] | (temp << 8); | |
1024 | temp |= MAF_HI_VALID_ | MAF_HI_TYPE_DST_; | |
1025 | pdata->pfilter_table[index][0] = temp; | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | /* returns hash bit number for given MAC address */ | |
1030 | static inline u32 lan78xx_hash(char addr[ETH_ALEN]) | |
1031 | { | |
1032 | return (ether_crc(ETH_ALEN, addr) >> 23) & 0x1ff; | |
1033 | } | |
1034 | ||
1035 | static void lan78xx_deferred_multicast_write(struct work_struct *param) | |
1036 | { | |
1037 | struct lan78xx_priv *pdata = | |
1038 | container_of(param, struct lan78xx_priv, set_multicast); | |
1039 | struct lan78xx_net *dev = pdata->dev; | |
1040 | int i; | |
1041 | int ret; | |
1042 | ||
1043 | netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x\n", | |
1044 | pdata->rfe_ctl); | |
1045 | ||
1046 | lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, DP_SEL_VHF_VLAN_LEN, | |
1047 | DP_SEL_VHF_HASH_LEN, pdata->mchash_table); | |
1048 | ||
1049 | for (i = 1; i < NUM_OF_MAF; i++) { | |
1050 | ret = lan78xx_write_reg(dev, MAF_HI(i), 0); | |
1051 | ret = lan78xx_write_reg(dev, MAF_LO(i), | |
1052 | pdata->pfilter_table[i][1]); | |
1053 | ret = lan78xx_write_reg(dev, MAF_HI(i), | |
1054 | pdata->pfilter_table[i][0]); | |
1055 | } | |
1056 | ||
1057 | ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); | |
1058 | } | |
1059 | ||
1060 | static void lan78xx_set_multicast(struct net_device *netdev) | |
1061 | { | |
1062 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1063 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
1064 | unsigned long flags; | |
1065 | int i; | |
1066 | ||
1067 | spin_lock_irqsave(&pdata->rfe_ctl_lock, flags); | |
1068 | ||
1069 | pdata->rfe_ctl &= ~(RFE_CTL_UCAST_EN_ | RFE_CTL_MCAST_EN_ | | |
1070 | RFE_CTL_DA_PERFECT_ | RFE_CTL_MCAST_HASH_); | |
1071 | ||
1072 | for (i = 0; i < DP_SEL_VHF_HASH_LEN; i++) | |
1073 | pdata->mchash_table[i] = 0; | |
1074 | /* pfilter_table[0] has own HW address */ | |
1075 | for (i = 1; i < NUM_OF_MAF; i++) { | |
1076 | pdata->pfilter_table[i][0] = | |
1077 | pdata->pfilter_table[i][1] = 0; | |
1078 | } | |
1079 | ||
1080 | pdata->rfe_ctl |= RFE_CTL_BCAST_EN_; | |
1081 | ||
1082 | if (dev->net->flags & IFF_PROMISC) { | |
1083 | netif_dbg(dev, drv, dev->net, "promiscuous mode enabled"); | |
1084 | pdata->rfe_ctl |= RFE_CTL_MCAST_EN_ | RFE_CTL_UCAST_EN_; | |
1085 | } else { | |
1086 | if (dev->net->flags & IFF_ALLMULTI) { | |
1087 | netif_dbg(dev, drv, dev->net, | |
1088 | "receive all multicast enabled"); | |
1089 | pdata->rfe_ctl |= RFE_CTL_MCAST_EN_; | |
1090 | } | |
1091 | } | |
1092 | ||
1093 | if (netdev_mc_count(dev->net)) { | |
1094 | struct netdev_hw_addr *ha; | |
1095 | int i; | |
1096 | ||
1097 | netif_dbg(dev, drv, dev->net, "receive multicast hash filter"); | |
1098 | ||
1099 | pdata->rfe_ctl |= RFE_CTL_DA_PERFECT_; | |
1100 | ||
1101 | i = 1; | |
1102 | netdev_for_each_mc_addr(ha, netdev) { | |
1103 | /* set first 32 into Perfect Filter */ | |
1104 | if (i < 33) { | |
1105 | lan78xx_set_addr_filter(pdata, i, ha->addr); | |
1106 | } else { | |
1107 | u32 bitnum = lan78xx_hash(ha->addr); | |
1108 | ||
1109 | pdata->mchash_table[bitnum / 32] |= | |
1110 | (1 << (bitnum % 32)); | |
1111 | pdata->rfe_ctl |= RFE_CTL_MCAST_HASH_; | |
1112 | } | |
1113 | i++; | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); | |
1118 | ||
1119 | /* defer register writes to a sleepable context */ | |
1120 | schedule_work(&pdata->set_multicast); | |
1121 | } | |
1122 | ||
1123 | static int lan78xx_update_flowcontrol(struct lan78xx_net *dev, u8 duplex, | |
1124 | u16 lcladv, u16 rmtadv) | |
1125 | { | |
1126 | u32 flow = 0, fct_flow = 0; | |
1127 | int ret; | |
1128 | u8 cap; | |
1129 | ||
1130 | if (dev->fc_autoneg) | |
1131 | cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv); | |
1132 | else | |
1133 | cap = dev->fc_request_control; | |
1134 | ||
1135 | if (cap & FLOW_CTRL_TX) | |
1136 | flow |= (FLOW_CR_TX_FCEN_ | 0xFFFF); | |
1137 | ||
1138 | if (cap & FLOW_CTRL_RX) | |
1139 | flow |= FLOW_CR_RX_FCEN_; | |
1140 | ||
1141 | if (dev->udev->speed == USB_SPEED_SUPER) | |
1142 | fct_flow = 0x817; | |
1143 | else if (dev->udev->speed == USB_SPEED_HIGH) | |
1144 | fct_flow = 0x211; | |
1145 | ||
1146 | netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s", | |
1147 | (cap & FLOW_CTRL_RX ? "enabled" : "disabled"), | |
1148 | (cap & FLOW_CTRL_TX ? "enabled" : "disabled")); | |
1149 | ||
1150 | ret = lan78xx_write_reg(dev, FCT_FLOW, fct_flow); | |
1151 | ||
1152 | /* threshold value should be set before enabling flow */ | |
1153 | ret = lan78xx_write_reg(dev, FLOW, flow); | |
1154 | ||
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | static int lan78xx_link_reset(struct lan78xx_net *dev) | |
1159 | { | |
1160 | struct phy_device *phydev = dev->net->phydev; | |
1161 | struct ethtool_link_ksettings ecmd; | |
1162 | int ladv, radv, ret; | |
1163 | u32 buf; | |
1164 | ||
1165 | /* clear LAN78xx interrupt status */ | |
1166 | ret = lan78xx_write_reg(dev, INT_STS, INT_STS_PHY_INT_); | |
1167 | if (unlikely(ret < 0)) | |
1168 | return -EIO; | |
1169 | ||
1170 | phy_read_status(phydev); | |
1171 | ||
1172 | if (!phydev->link && dev->link_on) { | |
1173 | dev->link_on = false; | |
1174 | ||
1175 | /* reset MAC */ | |
1176 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); | |
1177 | if (unlikely(ret < 0)) | |
1178 | return -EIO; | |
1179 | buf |= MAC_CR_RST_; | |
1180 | ret = lan78xx_write_reg(dev, MAC_CR, buf); | |
1181 | if (unlikely(ret < 0)) | |
1182 | return -EIO; | |
1183 | ||
1184 | del_timer(&dev->stat_monitor); | |
1185 | } else if (phydev->link && !dev->link_on) { | |
1186 | dev->link_on = true; | |
1187 | ||
1188 | phy_ethtool_ksettings_get(phydev, &ecmd); | |
1189 | ||
1190 | if (dev->udev->speed == USB_SPEED_SUPER) { | |
1191 | if (ecmd.base.speed == 1000) { | |
1192 | /* disable U2 */ | |
1193 | ret = lan78xx_read_reg(dev, USB_CFG1, &buf); | |
1194 | buf &= ~USB_CFG1_DEV_U2_INIT_EN_; | |
1195 | ret = lan78xx_write_reg(dev, USB_CFG1, buf); | |
1196 | /* enable U1 */ | |
1197 | ret = lan78xx_read_reg(dev, USB_CFG1, &buf); | |
1198 | buf |= USB_CFG1_DEV_U1_INIT_EN_; | |
1199 | ret = lan78xx_write_reg(dev, USB_CFG1, buf); | |
1200 | } else { | |
1201 | /* enable U1 & U2 */ | |
1202 | ret = lan78xx_read_reg(dev, USB_CFG1, &buf); | |
1203 | buf |= USB_CFG1_DEV_U2_INIT_EN_; | |
1204 | buf |= USB_CFG1_DEV_U1_INIT_EN_; | |
1205 | ret = lan78xx_write_reg(dev, USB_CFG1, buf); | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | ladv = phy_read(phydev, MII_ADVERTISE); | |
1210 | if (ladv < 0) | |
1211 | return ladv; | |
1212 | ||
1213 | radv = phy_read(phydev, MII_LPA); | |
1214 | if (radv < 0) | |
1215 | return radv; | |
1216 | ||
1217 | netif_dbg(dev, link, dev->net, | |
1218 | "speed: %u duplex: %d anadv: 0x%04x anlpa: 0x%04x", | |
1219 | ecmd.base.speed, ecmd.base.duplex, ladv, radv); | |
1220 | ||
1221 | ret = lan78xx_update_flowcontrol(dev, ecmd.base.duplex, ladv, | |
1222 | radv); | |
1223 | ||
1224 | if (!timer_pending(&dev->stat_monitor)) { | |
1225 | dev->delta = 1; | |
1226 | mod_timer(&dev->stat_monitor, | |
1227 | jiffies + STAT_UPDATE_TIMER); | |
1228 | } | |
1229 | ||
1230 | tasklet_schedule(&dev->bh); | |
1231 | } | |
1232 | ||
1233 | return ret; | |
1234 | } | |
1235 | ||
1236 | /* some work can't be done in tasklets, so we use keventd | |
1237 | * | |
1238 | * NOTE: annoying asymmetry: if it's active, schedule_work() fails, | |
1239 | * but tasklet_schedule() doesn't. hope the failure is rare. | |
1240 | */ | |
1241 | static void lan78xx_defer_kevent(struct lan78xx_net *dev, int work) | |
1242 | { | |
1243 | set_bit(work, &dev->flags); | |
1244 | if (!schedule_delayed_work(&dev->wq, 0)) | |
1245 | netdev_err(dev->net, "kevent %d may have been dropped\n", work); | |
1246 | } | |
1247 | ||
1248 | static void lan78xx_status(struct lan78xx_net *dev, struct urb *urb) | |
1249 | { | |
1250 | u32 intdata; | |
1251 | ||
1252 | if (urb->actual_length != 4) { | |
1253 | netdev_warn(dev->net, | |
1254 | "unexpected urb length %d", urb->actual_length); | |
1255 | return; | |
1256 | } | |
1257 | ||
1258 | intdata = get_unaligned_le32(urb->transfer_buffer); | |
1259 | ||
1260 | if (intdata & INT_ENP_PHY_INT) { | |
1261 | netif_dbg(dev, link, dev->net, "PHY INTR: 0x%08x\n", intdata); | |
1262 | lan78xx_defer_kevent(dev, EVENT_LINK_RESET); | |
1263 | ||
1264 | if (dev->domain_data.phyirq > 0) { | |
1265 | local_irq_disable(); | |
1266 | generic_handle_irq(dev->domain_data.phyirq); | |
1267 | local_irq_enable(); | |
1268 | } | |
1269 | } else | |
1270 | netdev_warn(dev->net, | |
1271 | "unexpected interrupt: 0x%08x\n", intdata); | |
1272 | } | |
1273 | ||
1274 | static int lan78xx_ethtool_get_eeprom_len(struct net_device *netdev) | |
1275 | { | |
1276 | return MAX_EEPROM_SIZE; | |
1277 | } | |
1278 | ||
1279 | static int lan78xx_ethtool_get_eeprom(struct net_device *netdev, | |
1280 | struct ethtool_eeprom *ee, u8 *data) | |
1281 | { | |
1282 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1283 | int ret; | |
1284 | ||
1285 | ret = usb_autopm_get_interface(dev->intf); | |
1286 | if (ret) | |
1287 | return ret; | |
1288 | ||
1289 | ee->magic = LAN78XX_EEPROM_MAGIC; | |
1290 | ||
1291 | ret = lan78xx_read_raw_eeprom(dev, ee->offset, ee->len, data); | |
1292 | ||
1293 | usb_autopm_put_interface(dev->intf); | |
1294 | ||
1295 | return ret; | |
1296 | } | |
1297 | ||
1298 | static int lan78xx_ethtool_set_eeprom(struct net_device *netdev, | |
1299 | struct ethtool_eeprom *ee, u8 *data) | |
1300 | { | |
1301 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1302 | int ret; | |
1303 | ||
1304 | ret = usb_autopm_get_interface(dev->intf); | |
1305 | if (ret) | |
1306 | return ret; | |
1307 | ||
1308 | /* Invalid EEPROM_INDICATOR at offset zero will result in a failure | |
1309 | * to load data from EEPROM | |
1310 | */ | |
1311 | if (ee->magic == LAN78XX_EEPROM_MAGIC) | |
1312 | ret = lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data); | |
1313 | else if ((ee->magic == LAN78XX_OTP_MAGIC) && | |
1314 | (ee->offset == 0) && | |
1315 | (ee->len == 512) && | |
1316 | (data[0] == OTP_INDICATOR_1)) | |
1317 | ret = lan78xx_write_raw_otp(dev, ee->offset, ee->len, data); | |
1318 | ||
1319 | usb_autopm_put_interface(dev->intf); | |
1320 | ||
1321 | return ret; | |
1322 | } | |
1323 | ||
1324 | static void lan78xx_get_strings(struct net_device *netdev, u32 stringset, | |
1325 | u8 *data) | |
1326 | { | |
1327 | if (stringset == ETH_SS_STATS) | |
1328 | memcpy(data, lan78xx_gstrings, sizeof(lan78xx_gstrings)); | |
1329 | } | |
1330 | ||
1331 | static int lan78xx_get_sset_count(struct net_device *netdev, int sset) | |
1332 | { | |
1333 | if (sset == ETH_SS_STATS) | |
1334 | return ARRAY_SIZE(lan78xx_gstrings); | |
1335 | else | |
1336 | return -EOPNOTSUPP; | |
1337 | } | |
1338 | ||
1339 | static void lan78xx_get_stats(struct net_device *netdev, | |
1340 | struct ethtool_stats *stats, u64 *data) | |
1341 | { | |
1342 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1343 | ||
1344 | lan78xx_update_stats(dev); | |
1345 | ||
1346 | mutex_lock(&dev->stats.access_lock); | |
1347 | memcpy(data, &dev->stats.curr_stat, sizeof(dev->stats.curr_stat)); | |
1348 | mutex_unlock(&dev->stats.access_lock); | |
1349 | } | |
1350 | ||
1351 | static void lan78xx_get_wol(struct net_device *netdev, | |
1352 | struct ethtool_wolinfo *wol) | |
1353 | { | |
1354 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1355 | int ret; | |
1356 | u32 buf; | |
1357 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
1358 | ||
1359 | if (usb_autopm_get_interface(dev->intf) < 0) | |
1360 | return; | |
1361 | ||
1362 | ret = lan78xx_read_reg(dev, USB_CFG0, &buf); | |
1363 | if (unlikely(ret < 0)) { | |
1364 | wol->supported = 0; | |
1365 | wol->wolopts = 0; | |
1366 | } else { | |
1367 | if (buf & USB_CFG_RMT_WKP_) { | |
1368 | wol->supported = WAKE_ALL; | |
1369 | wol->wolopts = pdata->wol; | |
1370 | } else { | |
1371 | wol->supported = 0; | |
1372 | wol->wolopts = 0; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | usb_autopm_put_interface(dev->intf); | |
1377 | } | |
1378 | ||
1379 | static int lan78xx_set_wol(struct net_device *netdev, | |
1380 | struct ethtool_wolinfo *wol) | |
1381 | { | |
1382 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1383 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
1384 | int ret; | |
1385 | ||
1386 | ret = usb_autopm_get_interface(dev->intf); | |
1387 | if (ret < 0) | |
1388 | return ret; | |
1389 | ||
1390 | if (wol->wolopts & ~WAKE_ALL) | |
1391 | return -EINVAL; | |
1392 | ||
1393 | pdata->wol = wol->wolopts; | |
1394 | ||
1395 | device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts); | |
1396 | ||
1397 | phy_ethtool_set_wol(netdev->phydev, wol); | |
1398 | ||
1399 | usb_autopm_put_interface(dev->intf); | |
1400 | ||
1401 | return ret; | |
1402 | } | |
1403 | ||
1404 | static int lan78xx_get_eee(struct net_device *net, struct ethtool_eee *edata) | |
1405 | { | |
1406 | struct lan78xx_net *dev = netdev_priv(net); | |
1407 | struct phy_device *phydev = net->phydev; | |
1408 | int ret; | |
1409 | u32 buf; | |
1410 | ||
1411 | ret = usb_autopm_get_interface(dev->intf); | |
1412 | if (ret < 0) | |
1413 | return ret; | |
1414 | ||
1415 | ret = phy_ethtool_get_eee(phydev, edata); | |
1416 | if (ret < 0) | |
1417 | goto exit; | |
1418 | ||
1419 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); | |
1420 | if (buf & MAC_CR_EEE_EN_) { | |
1421 | edata->eee_enabled = true; | |
1422 | edata->eee_active = !!(edata->advertised & | |
1423 | edata->lp_advertised); | |
1424 | edata->tx_lpi_enabled = true; | |
1425 | /* EEE_TX_LPI_REQ_DLY & tx_lpi_timer are same uSec unit */ | |
1426 | ret = lan78xx_read_reg(dev, EEE_TX_LPI_REQ_DLY, &buf); | |
1427 | edata->tx_lpi_timer = buf; | |
1428 | } else { | |
1429 | edata->eee_enabled = false; | |
1430 | edata->eee_active = false; | |
1431 | edata->tx_lpi_enabled = false; | |
1432 | edata->tx_lpi_timer = 0; | |
1433 | } | |
1434 | ||
1435 | ret = 0; | |
1436 | exit: | |
1437 | usb_autopm_put_interface(dev->intf); | |
1438 | ||
1439 | return ret; | |
1440 | } | |
1441 | ||
1442 | static int lan78xx_set_eee(struct net_device *net, struct ethtool_eee *edata) | |
1443 | { | |
1444 | struct lan78xx_net *dev = netdev_priv(net); | |
1445 | int ret; | |
1446 | u32 buf; | |
1447 | ||
1448 | ret = usb_autopm_get_interface(dev->intf); | |
1449 | if (ret < 0) | |
1450 | return ret; | |
1451 | ||
1452 | if (edata->eee_enabled) { | |
1453 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); | |
1454 | buf |= MAC_CR_EEE_EN_; | |
1455 | ret = lan78xx_write_reg(dev, MAC_CR, buf); | |
1456 | ||
1457 | phy_ethtool_set_eee(net->phydev, edata); | |
1458 | ||
1459 | buf = (u32)edata->tx_lpi_timer; | |
1460 | ret = lan78xx_write_reg(dev, EEE_TX_LPI_REQ_DLY, buf); | |
1461 | } else { | |
1462 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); | |
1463 | buf &= ~MAC_CR_EEE_EN_; | |
1464 | ret = lan78xx_write_reg(dev, MAC_CR, buf); | |
1465 | } | |
1466 | ||
1467 | usb_autopm_put_interface(dev->intf); | |
1468 | ||
1469 | return 0; | |
1470 | } | |
1471 | ||
1472 | static u32 lan78xx_get_link(struct net_device *net) | |
1473 | { | |
1474 | phy_read_status(net->phydev); | |
1475 | ||
1476 | return net->phydev->link; | |
1477 | } | |
1478 | ||
1479 | static void lan78xx_get_drvinfo(struct net_device *net, | |
1480 | struct ethtool_drvinfo *info) | |
1481 | { | |
1482 | struct lan78xx_net *dev = netdev_priv(net); | |
1483 | ||
1484 | strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); | |
1485 | usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); | |
1486 | } | |
1487 | ||
1488 | static u32 lan78xx_get_msglevel(struct net_device *net) | |
1489 | { | |
1490 | struct lan78xx_net *dev = netdev_priv(net); | |
1491 | ||
1492 | return dev->msg_enable; | |
1493 | } | |
1494 | ||
1495 | static void lan78xx_set_msglevel(struct net_device *net, u32 level) | |
1496 | { | |
1497 | struct lan78xx_net *dev = netdev_priv(net); | |
1498 | ||
1499 | dev->msg_enable = level; | |
1500 | } | |
1501 | ||
1502 | static int lan78xx_get_link_ksettings(struct net_device *net, | |
1503 | struct ethtool_link_ksettings *cmd) | |
1504 | { | |
1505 | struct lan78xx_net *dev = netdev_priv(net); | |
1506 | struct phy_device *phydev = net->phydev; | |
1507 | int ret; | |
1508 | ||
1509 | ret = usb_autopm_get_interface(dev->intf); | |
1510 | if (ret < 0) | |
1511 | return ret; | |
1512 | ||
1513 | phy_ethtool_ksettings_get(phydev, cmd); | |
1514 | ||
1515 | usb_autopm_put_interface(dev->intf); | |
1516 | ||
1517 | return ret; | |
1518 | } | |
1519 | ||
1520 | static int lan78xx_set_link_ksettings(struct net_device *net, | |
1521 | const struct ethtool_link_ksettings *cmd) | |
1522 | { | |
1523 | struct lan78xx_net *dev = netdev_priv(net); | |
1524 | struct phy_device *phydev = net->phydev; | |
1525 | int ret = 0; | |
1526 | int temp; | |
1527 | ||
1528 | ret = usb_autopm_get_interface(dev->intf); | |
1529 | if (ret < 0) | |
1530 | return ret; | |
1531 | ||
1532 | /* change speed & duplex */ | |
1533 | ret = phy_ethtool_ksettings_set(phydev, cmd); | |
1534 | ||
1535 | if (!cmd->base.autoneg) { | |
1536 | /* force link down */ | |
1537 | temp = phy_read(phydev, MII_BMCR); | |
1538 | phy_write(phydev, MII_BMCR, temp | BMCR_LOOPBACK); | |
1539 | mdelay(1); | |
1540 | phy_write(phydev, MII_BMCR, temp); | |
1541 | } | |
1542 | ||
1543 | usb_autopm_put_interface(dev->intf); | |
1544 | ||
1545 | return ret; | |
1546 | } | |
1547 | ||
1548 | static void lan78xx_get_pause(struct net_device *net, | |
1549 | struct ethtool_pauseparam *pause) | |
1550 | { | |
1551 | struct lan78xx_net *dev = netdev_priv(net); | |
1552 | struct phy_device *phydev = net->phydev; | |
1553 | struct ethtool_link_ksettings ecmd; | |
1554 | ||
1555 | phy_ethtool_ksettings_get(phydev, &ecmd); | |
1556 | ||
1557 | pause->autoneg = dev->fc_autoneg; | |
1558 | ||
1559 | if (dev->fc_request_control & FLOW_CTRL_TX) | |
1560 | pause->tx_pause = 1; | |
1561 | ||
1562 | if (dev->fc_request_control & FLOW_CTRL_RX) | |
1563 | pause->rx_pause = 1; | |
1564 | } | |
1565 | ||
1566 | static int lan78xx_set_pause(struct net_device *net, | |
1567 | struct ethtool_pauseparam *pause) | |
1568 | { | |
1569 | struct lan78xx_net *dev = netdev_priv(net); | |
1570 | struct phy_device *phydev = net->phydev; | |
1571 | struct ethtool_link_ksettings ecmd; | |
1572 | int ret; | |
1573 | ||
1574 | phy_ethtool_ksettings_get(phydev, &ecmd); | |
1575 | ||
1576 | if (pause->autoneg && !ecmd.base.autoneg) { | |
1577 | ret = -EINVAL; | |
1578 | goto exit; | |
1579 | } | |
1580 | ||
1581 | dev->fc_request_control = 0; | |
1582 | if (pause->rx_pause) | |
1583 | dev->fc_request_control |= FLOW_CTRL_RX; | |
1584 | ||
1585 | if (pause->tx_pause) | |
1586 | dev->fc_request_control |= FLOW_CTRL_TX; | |
1587 | ||
1588 | if (ecmd.base.autoneg) { | |
1589 | __ETHTOOL_DECLARE_LINK_MODE_MASK(fc) = { 0, }; | |
1590 | u32 mii_adv; | |
1591 | ||
1592 | linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, | |
1593 | ecmd.link_modes.advertising); | |
1594 | linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, | |
1595 | ecmd.link_modes.advertising); | |
1596 | mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control); | |
1597 | mii_adv_to_linkmode_adv_t(fc, mii_adv); | |
1598 | linkmode_or(ecmd.link_modes.advertising, fc, | |
1599 | ecmd.link_modes.advertising); | |
1600 | ||
1601 | phy_ethtool_ksettings_set(phydev, &ecmd); | |
1602 | } | |
1603 | ||
1604 | dev->fc_autoneg = pause->autoneg; | |
1605 | ||
1606 | ret = 0; | |
1607 | exit: | |
1608 | return ret; | |
1609 | } | |
1610 | ||
1611 | static int lan78xx_get_regs_len(struct net_device *netdev) | |
1612 | { | |
1613 | if (!netdev->phydev) | |
1614 | return (sizeof(lan78xx_regs)); | |
1615 | else | |
1616 | return (sizeof(lan78xx_regs) + PHY_REG_SIZE); | |
1617 | } | |
1618 | ||
1619 | static void | |
1620 | lan78xx_get_regs(struct net_device *netdev, struct ethtool_regs *regs, | |
1621 | void *buf) | |
1622 | { | |
1623 | u32 *data = buf; | |
1624 | int i, j; | |
1625 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1626 | ||
1627 | /* Read Device/MAC registers */ | |
1628 | for (i = 0; i < ARRAY_SIZE(lan78xx_regs); i++) | |
1629 | lan78xx_read_reg(dev, lan78xx_regs[i], &data[i]); | |
1630 | ||
1631 | if (!netdev->phydev) | |
1632 | return; | |
1633 | ||
1634 | /* Read PHY registers */ | |
1635 | for (j = 0; j < 32; i++, j++) | |
1636 | data[i] = phy_read(netdev->phydev, j); | |
1637 | } | |
1638 | ||
1639 | static const struct ethtool_ops lan78xx_ethtool_ops = { | |
1640 | .get_link = lan78xx_get_link, | |
1641 | .nway_reset = phy_ethtool_nway_reset, | |
1642 | .get_drvinfo = lan78xx_get_drvinfo, | |
1643 | .get_msglevel = lan78xx_get_msglevel, | |
1644 | .set_msglevel = lan78xx_set_msglevel, | |
1645 | .get_eeprom_len = lan78xx_ethtool_get_eeprom_len, | |
1646 | .get_eeprom = lan78xx_ethtool_get_eeprom, | |
1647 | .set_eeprom = lan78xx_ethtool_set_eeprom, | |
1648 | .get_ethtool_stats = lan78xx_get_stats, | |
1649 | .get_sset_count = lan78xx_get_sset_count, | |
1650 | .get_strings = lan78xx_get_strings, | |
1651 | .get_wol = lan78xx_get_wol, | |
1652 | .set_wol = lan78xx_set_wol, | |
1653 | .get_eee = lan78xx_get_eee, | |
1654 | .set_eee = lan78xx_set_eee, | |
1655 | .get_pauseparam = lan78xx_get_pause, | |
1656 | .set_pauseparam = lan78xx_set_pause, | |
1657 | .get_link_ksettings = lan78xx_get_link_ksettings, | |
1658 | .set_link_ksettings = lan78xx_set_link_ksettings, | |
1659 | .get_regs_len = lan78xx_get_regs_len, | |
1660 | .get_regs = lan78xx_get_regs, | |
1661 | }; | |
1662 | ||
1663 | static void lan78xx_init_mac_address(struct lan78xx_net *dev) | |
1664 | { | |
1665 | u32 addr_lo, addr_hi; | |
1666 | int ret; | |
1667 | u8 addr[6]; | |
1668 | ||
1669 | ret = lan78xx_read_reg(dev, RX_ADDRL, &addr_lo); | |
1670 | ret = lan78xx_read_reg(dev, RX_ADDRH, &addr_hi); | |
1671 | ||
1672 | addr[0] = addr_lo & 0xFF; | |
1673 | addr[1] = (addr_lo >> 8) & 0xFF; | |
1674 | addr[2] = (addr_lo >> 16) & 0xFF; | |
1675 | addr[3] = (addr_lo >> 24) & 0xFF; | |
1676 | addr[4] = addr_hi & 0xFF; | |
1677 | addr[5] = (addr_hi >> 8) & 0xFF; | |
1678 | ||
1679 | if (!is_valid_ether_addr(addr)) { | |
1680 | if (!eth_platform_get_mac_address(&dev->udev->dev, addr)) { | |
1681 | /* valid address present in Device Tree */ | |
1682 | netif_dbg(dev, ifup, dev->net, | |
1683 | "MAC address read from Device Tree"); | |
1684 | } else if (((lan78xx_read_eeprom(dev, EEPROM_MAC_OFFSET, | |
1685 | ETH_ALEN, addr) == 0) || | |
1686 | (lan78xx_read_otp(dev, EEPROM_MAC_OFFSET, | |
1687 | ETH_ALEN, addr) == 0)) && | |
1688 | is_valid_ether_addr(addr)) { | |
1689 | /* eeprom values are valid so use them */ | |
1690 | netif_dbg(dev, ifup, dev->net, | |
1691 | "MAC address read from EEPROM"); | |
1692 | } else { | |
1693 | /* generate random MAC */ | |
1694 | eth_random_addr(addr); | |
1695 | netif_dbg(dev, ifup, dev->net, | |
1696 | "MAC address set to random addr"); | |
1697 | } | |
1698 | ||
1699 | addr_lo = addr[0] | (addr[1] << 8) | | |
1700 | (addr[2] << 16) | (addr[3] << 24); | |
1701 | addr_hi = addr[4] | (addr[5] << 8); | |
1702 | ||
1703 | ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo); | |
1704 | ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi); | |
1705 | } | |
1706 | ||
1707 | ret = lan78xx_write_reg(dev, MAF_LO(0), addr_lo); | |
1708 | ret = lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); | |
1709 | ||
1710 | ether_addr_copy(dev->net->dev_addr, addr); | |
1711 | } | |
1712 | ||
1713 | /* MDIO read and write wrappers for phylib */ | |
1714 | static int lan78xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx) | |
1715 | { | |
1716 | struct lan78xx_net *dev = bus->priv; | |
1717 | u32 val, addr; | |
1718 | int ret; | |
1719 | ||
1720 | ret = usb_autopm_get_interface(dev->intf); | |
1721 | if (ret < 0) | |
1722 | return ret; | |
1723 | ||
1724 | mutex_lock(&dev->phy_mutex); | |
1725 | ||
1726 | /* confirm MII not busy */ | |
1727 | ret = lan78xx_phy_wait_not_busy(dev); | |
1728 | if (ret < 0) | |
1729 | goto done; | |
1730 | ||
1731 | /* set the address, index & direction (read from PHY) */ | |
1732 | addr = mii_access(phy_id, idx, MII_READ); | |
1733 | ret = lan78xx_write_reg(dev, MII_ACC, addr); | |
1734 | ||
1735 | ret = lan78xx_phy_wait_not_busy(dev); | |
1736 | if (ret < 0) | |
1737 | goto done; | |
1738 | ||
1739 | ret = lan78xx_read_reg(dev, MII_DATA, &val); | |
1740 | ||
1741 | ret = (int)(val & 0xFFFF); | |
1742 | ||
1743 | done: | |
1744 | mutex_unlock(&dev->phy_mutex); | |
1745 | usb_autopm_put_interface(dev->intf); | |
1746 | ||
1747 | return ret; | |
1748 | } | |
1749 | ||
1750 | static int lan78xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx, | |
1751 | u16 regval) | |
1752 | { | |
1753 | struct lan78xx_net *dev = bus->priv; | |
1754 | u32 val, addr; | |
1755 | int ret; | |
1756 | ||
1757 | ret = usb_autopm_get_interface(dev->intf); | |
1758 | if (ret < 0) | |
1759 | return ret; | |
1760 | ||
1761 | mutex_lock(&dev->phy_mutex); | |
1762 | ||
1763 | /* confirm MII not busy */ | |
1764 | ret = lan78xx_phy_wait_not_busy(dev); | |
1765 | if (ret < 0) | |
1766 | goto done; | |
1767 | ||
1768 | val = (u32)regval; | |
1769 | ret = lan78xx_write_reg(dev, MII_DATA, val); | |
1770 | ||
1771 | /* set the address, index & direction (write to PHY) */ | |
1772 | addr = mii_access(phy_id, idx, MII_WRITE); | |
1773 | ret = lan78xx_write_reg(dev, MII_ACC, addr); | |
1774 | ||
1775 | ret = lan78xx_phy_wait_not_busy(dev); | |
1776 | if (ret < 0) | |
1777 | goto done; | |
1778 | ||
1779 | done: | |
1780 | mutex_unlock(&dev->phy_mutex); | |
1781 | usb_autopm_put_interface(dev->intf); | |
1782 | return 0; | |
1783 | } | |
1784 | ||
1785 | static int lan78xx_mdio_init(struct lan78xx_net *dev) | |
1786 | { | |
1787 | struct device_node *node; | |
1788 | int ret; | |
1789 | ||
1790 | dev->mdiobus = mdiobus_alloc(); | |
1791 | if (!dev->mdiobus) { | |
1792 | netdev_err(dev->net, "can't allocate MDIO bus\n"); | |
1793 | return -ENOMEM; | |
1794 | } | |
1795 | ||
1796 | dev->mdiobus->priv = (void *)dev; | |
1797 | dev->mdiobus->read = lan78xx_mdiobus_read; | |
1798 | dev->mdiobus->write = lan78xx_mdiobus_write; | |
1799 | dev->mdiobus->name = "lan78xx-mdiobus"; | |
1800 | dev->mdiobus->parent = &dev->udev->dev; | |
1801 | ||
1802 | snprintf(dev->mdiobus->id, MII_BUS_ID_SIZE, "usb-%03d:%03d", | |
1803 | dev->udev->bus->busnum, dev->udev->devnum); | |
1804 | ||
1805 | switch (dev->chipid) { | |
1806 | case ID_REV_CHIP_ID_7800_: | |
1807 | case ID_REV_CHIP_ID_7850_: | |
1808 | /* set to internal PHY id */ | |
1809 | dev->mdiobus->phy_mask = ~(1 << 1); | |
1810 | break; | |
1811 | case ID_REV_CHIP_ID_7801_: | |
1812 | /* scan thru PHYAD[2..0] */ | |
1813 | dev->mdiobus->phy_mask = ~(0xFF); | |
1814 | break; | |
1815 | } | |
1816 | ||
1817 | node = of_get_child_by_name(dev->udev->dev.of_node, "mdio"); | |
1818 | ret = of_mdiobus_register(dev->mdiobus, node); | |
1819 | of_node_put(node); | |
1820 | if (ret) { | |
1821 | netdev_err(dev->net, "can't register MDIO bus\n"); | |
1822 | goto exit1; | |
1823 | } | |
1824 | ||
1825 | netdev_dbg(dev->net, "registered mdiobus bus %s\n", dev->mdiobus->id); | |
1826 | return 0; | |
1827 | exit1: | |
1828 | mdiobus_free(dev->mdiobus); | |
1829 | return ret; | |
1830 | } | |
1831 | ||
1832 | static void lan78xx_remove_mdio(struct lan78xx_net *dev) | |
1833 | { | |
1834 | mdiobus_unregister(dev->mdiobus); | |
1835 | mdiobus_free(dev->mdiobus); | |
1836 | } | |
1837 | ||
1838 | static void lan78xx_link_status_change(struct net_device *net) | |
1839 | { | |
1840 | struct phy_device *phydev = net->phydev; | |
1841 | int ret, temp; | |
1842 | ||
1843 | /* At forced 100 F/H mode, chip may fail to set mode correctly | |
1844 | * when cable is switched between long(~50+m) and short one. | |
1845 | * As workaround, set to 10 before setting to 100 | |
1846 | * at forced 100 F/H mode. | |
1847 | */ | |
1848 | if (!phydev->autoneg && (phydev->speed == 100)) { | |
1849 | /* disable phy interrupt */ | |
1850 | temp = phy_read(phydev, LAN88XX_INT_MASK); | |
1851 | temp &= ~LAN88XX_INT_MASK_MDINTPIN_EN_; | |
1852 | ret = phy_write(phydev, LAN88XX_INT_MASK, temp); | |
1853 | ||
1854 | temp = phy_read(phydev, MII_BMCR); | |
1855 | temp &= ~(BMCR_SPEED100 | BMCR_SPEED1000); | |
1856 | phy_write(phydev, MII_BMCR, temp); /* set to 10 first */ | |
1857 | temp |= BMCR_SPEED100; | |
1858 | phy_write(phydev, MII_BMCR, temp); /* set to 100 later */ | |
1859 | ||
1860 | /* clear pending interrupt generated while workaround */ | |
1861 | temp = phy_read(phydev, LAN88XX_INT_STS); | |
1862 | ||
1863 | /* enable phy interrupt back */ | |
1864 | temp = phy_read(phydev, LAN88XX_INT_MASK); | |
1865 | temp |= LAN88XX_INT_MASK_MDINTPIN_EN_; | |
1866 | ret = phy_write(phydev, LAN88XX_INT_MASK, temp); | |
1867 | } | |
1868 | } | |
1869 | ||
1870 | static int irq_map(struct irq_domain *d, unsigned int irq, | |
1871 | irq_hw_number_t hwirq) | |
1872 | { | |
1873 | struct irq_domain_data *data = d->host_data; | |
1874 | ||
1875 | irq_set_chip_data(irq, data); | |
1876 | irq_set_chip_and_handler(irq, data->irqchip, data->irq_handler); | |
1877 | irq_set_noprobe(irq); | |
1878 | ||
1879 | return 0; | |
1880 | } | |
1881 | ||
1882 | static void irq_unmap(struct irq_domain *d, unsigned int irq) | |
1883 | { | |
1884 | irq_set_chip_and_handler(irq, NULL, NULL); | |
1885 | irq_set_chip_data(irq, NULL); | |
1886 | } | |
1887 | ||
1888 | static const struct irq_domain_ops chip_domain_ops = { | |
1889 | .map = irq_map, | |
1890 | .unmap = irq_unmap, | |
1891 | }; | |
1892 | ||
1893 | static void lan78xx_irq_mask(struct irq_data *irqd) | |
1894 | { | |
1895 | struct irq_domain_data *data = irq_data_get_irq_chip_data(irqd); | |
1896 | ||
1897 | data->irqenable &= ~BIT(irqd_to_hwirq(irqd)); | |
1898 | } | |
1899 | ||
1900 | static void lan78xx_irq_unmask(struct irq_data *irqd) | |
1901 | { | |
1902 | struct irq_domain_data *data = irq_data_get_irq_chip_data(irqd); | |
1903 | ||
1904 | data->irqenable |= BIT(irqd_to_hwirq(irqd)); | |
1905 | } | |
1906 | ||
1907 | static void lan78xx_irq_bus_lock(struct irq_data *irqd) | |
1908 | { | |
1909 | struct irq_domain_data *data = irq_data_get_irq_chip_data(irqd); | |
1910 | ||
1911 | mutex_lock(&data->irq_lock); | |
1912 | } | |
1913 | ||
1914 | static void lan78xx_irq_bus_sync_unlock(struct irq_data *irqd) | |
1915 | { | |
1916 | struct irq_domain_data *data = irq_data_get_irq_chip_data(irqd); | |
1917 | struct lan78xx_net *dev = | |
1918 | container_of(data, struct lan78xx_net, domain_data); | |
1919 | u32 buf; | |
1920 | int ret; | |
1921 | ||
1922 | /* call register access here because irq_bus_lock & irq_bus_sync_unlock | |
1923 | * are only two callbacks executed in non-atomic contex. | |
1924 | */ | |
1925 | ret = lan78xx_read_reg(dev, INT_EP_CTL, &buf); | |
1926 | if (buf != data->irqenable) | |
1927 | ret = lan78xx_write_reg(dev, INT_EP_CTL, data->irqenable); | |
1928 | ||
1929 | mutex_unlock(&data->irq_lock); | |
1930 | } | |
1931 | ||
1932 | static struct irq_chip lan78xx_irqchip = { | |
1933 | .name = "lan78xx-irqs", | |
1934 | .irq_mask = lan78xx_irq_mask, | |
1935 | .irq_unmask = lan78xx_irq_unmask, | |
1936 | .irq_bus_lock = lan78xx_irq_bus_lock, | |
1937 | .irq_bus_sync_unlock = lan78xx_irq_bus_sync_unlock, | |
1938 | }; | |
1939 | ||
1940 | static int lan78xx_setup_irq_domain(struct lan78xx_net *dev) | |
1941 | { | |
1942 | struct device_node *of_node; | |
1943 | struct irq_domain *irqdomain; | |
1944 | unsigned int irqmap = 0; | |
1945 | u32 buf; | |
1946 | int ret = 0; | |
1947 | ||
1948 | of_node = dev->udev->dev.parent->of_node; | |
1949 | ||
1950 | mutex_init(&dev->domain_data.irq_lock); | |
1951 | ||
1952 | lan78xx_read_reg(dev, INT_EP_CTL, &buf); | |
1953 | dev->domain_data.irqenable = buf; | |
1954 | ||
1955 | dev->domain_data.irqchip = &lan78xx_irqchip; | |
1956 | dev->domain_data.irq_handler = handle_simple_irq; | |
1957 | ||
1958 | irqdomain = irq_domain_add_simple(of_node, MAX_INT_EP, 0, | |
1959 | &chip_domain_ops, &dev->domain_data); | |
1960 | if (irqdomain) { | |
1961 | /* create mapping for PHY interrupt */ | |
1962 | irqmap = irq_create_mapping(irqdomain, INT_EP_PHY); | |
1963 | if (!irqmap) { | |
1964 | irq_domain_remove(irqdomain); | |
1965 | ||
1966 | irqdomain = NULL; | |
1967 | ret = -EINVAL; | |
1968 | } | |
1969 | } else { | |
1970 | ret = -EINVAL; | |
1971 | } | |
1972 | ||
1973 | dev->domain_data.irqdomain = irqdomain; | |
1974 | dev->domain_data.phyirq = irqmap; | |
1975 | ||
1976 | return ret; | |
1977 | } | |
1978 | ||
1979 | static void lan78xx_remove_irq_domain(struct lan78xx_net *dev) | |
1980 | { | |
1981 | if (dev->domain_data.phyirq > 0) { | |
1982 | irq_dispose_mapping(dev->domain_data.phyirq); | |
1983 | ||
1984 | if (dev->domain_data.irqdomain) | |
1985 | irq_domain_remove(dev->domain_data.irqdomain); | |
1986 | } | |
1987 | dev->domain_data.phyirq = 0; | |
1988 | dev->domain_data.irqdomain = NULL; | |
1989 | } | |
1990 | ||
1991 | static int lan8835_fixup(struct phy_device *phydev) | |
1992 | { | |
1993 | int buf; | |
1994 | int ret; | |
1995 | struct lan78xx_net *dev = netdev_priv(phydev->attached_dev); | |
1996 | ||
1997 | /* LED2/PME_N/IRQ_N/RGMII_ID pin to IRQ_N mode */ | |
1998 | buf = phy_read_mmd(phydev, MDIO_MMD_PCS, 0x8010); | |
1999 | buf &= ~0x1800; | |
2000 | buf |= 0x0800; | |
2001 | phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8010, buf); | |
2002 | ||
2003 | /* RGMII MAC TXC Delay Enable */ | |
2004 | ret = lan78xx_write_reg(dev, MAC_RGMII_ID, | |
2005 | MAC_RGMII_ID_TXC_DELAY_EN_); | |
2006 | ||
2007 | /* RGMII TX DLL Tune Adjust */ | |
2008 | ret = lan78xx_write_reg(dev, RGMII_TX_BYP_DLL, 0x3D00); | |
2009 | ||
2010 | dev->interface = PHY_INTERFACE_MODE_RGMII_TXID; | |
2011 | ||
2012 | return 1; | |
2013 | } | |
2014 | ||
2015 | static int ksz9031rnx_fixup(struct phy_device *phydev) | |
2016 | { | |
2017 | struct lan78xx_net *dev = netdev_priv(phydev->attached_dev); | |
2018 | ||
2019 | /* Micrel9301RNX PHY configuration */ | |
2020 | /* RGMII Control Signal Pad Skew */ | |
2021 | phy_write_mmd(phydev, MDIO_MMD_WIS, 4, 0x0077); | |
2022 | /* RGMII RX Data Pad Skew */ | |
2023 | phy_write_mmd(phydev, MDIO_MMD_WIS, 5, 0x7777); | |
2024 | /* RGMII RX Clock Pad Skew */ | |
2025 | phy_write_mmd(phydev, MDIO_MMD_WIS, 8, 0x1FF); | |
2026 | ||
2027 | dev->interface = PHY_INTERFACE_MODE_RGMII_RXID; | |
2028 | ||
2029 | return 1; | |
2030 | } | |
2031 | ||
2032 | static struct phy_device *lan7801_phy_init(struct lan78xx_net *dev) | |
2033 | { | |
2034 | u32 buf; | |
2035 | int ret; | |
2036 | struct fixed_phy_status fphy_status = { | |
2037 | .link = 1, | |
2038 | .speed = SPEED_1000, | |
2039 | .duplex = DUPLEX_FULL, | |
2040 | }; | |
2041 | struct phy_device *phydev; | |
2042 | ||
2043 | phydev = phy_find_first(dev->mdiobus); | |
2044 | if (!phydev) { | |
2045 | netdev_dbg(dev->net, "PHY Not Found!! Registering Fixed PHY\n"); | |
2046 | phydev = fixed_phy_register(PHY_POLL, &fphy_status, NULL); | |
2047 | if (IS_ERR(phydev)) { | |
2048 | netdev_err(dev->net, "No PHY/fixed_PHY found\n"); | |
2049 | return NULL; | |
2050 | } | |
2051 | netdev_dbg(dev->net, "Registered FIXED PHY\n"); | |
2052 | dev->interface = PHY_INTERFACE_MODE_RGMII; | |
2053 | ret = lan78xx_write_reg(dev, MAC_RGMII_ID, | |
2054 | MAC_RGMII_ID_TXC_DELAY_EN_); | |
2055 | ret = lan78xx_write_reg(dev, RGMII_TX_BYP_DLL, 0x3D00); | |
2056 | ret = lan78xx_read_reg(dev, HW_CFG, &buf); | |
2057 | buf |= HW_CFG_CLK125_EN_; | |
2058 | buf |= HW_CFG_REFCLK25_EN_; | |
2059 | ret = lan78xx_write_reg(dev, HW_CFG, buf); | |
2060 | } else { | |
2061 | if (!phydev->drv) { | |
2062 | netdev_err(dev->net, "no PHY driver found\n"); | |
2063 | return NULL; | |
2064 | } | |
2065 | dev->interface = PHY_INTERFACE_MODE_RGMII; | |
2066 | /* external PHY fixup for KSZ9031RNX */ | |
2067 | ret = phy_register_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0, | |
2068 | ksz9031rnx_fixup); | |
2069 | if (ret < 0) { | |
2070 | netdev_err(dev->net, "Failed to register fixup for PHY_KSZ9031RNX\n"); | |
2071 | return NULL; | |
2072 | } | |
2073 | /* external PHY fixup for LAN8835 */ | |
2074 | ret = phy_register_fixup_for_uid(PHY_LAN8835, 0xfffffff0, | |
2075 | lan8835_fixup); | |
2076 | if (ret < 0) { | |
2077 | netdev_err(dev->net, "Failed to register fixup for PHY_LAN8835\n"); | |
2078 | return NULL; | |
2079 | } | |
2080 | /* add more external PHY fixup here if needed */ | |
2081 | ||
2082 | phydev->is_internal = false; | |
2083 | } | |
2084 | return phydev; | |
2085 | } | |
2086 | ||
2087 | static int lan78xx_phy_init(struct lan78xx_net *dev) | |
2088 | { | |
2089 | __ETHTOOL_DECLARE_LINK_MODE_MASK(fc) = { 0, }; | |
2090 | int ret; | |
2091 | u32 mii_adv; | |
2092 | struct phy_device *phydev; | |
2093 | ||
2094 | switch (dev->chipid) { | |
2095 | case ID_REV_CHIP_ID_7801_: | |
2096 | phydev = lan7801_phy_init(dev); | |
2097 | if (!phydev) { | |
2098 | netdev_err(dev->net, "lan7801: PHY Init Failed"); | |
2099 | return -EIO; | |
2100 | } | |
2101 | break; | |
2102 | ||
2103 | case ID_REV_CHIP_ID_7800_: | |
2104 | case ID_REV_CHIP_ID_7850_: | |
2105 | phydev = phy_find_first(dev->mdiobus); | |
2106 | if (!phydev) { | |
2107 | netdev_err(dev->net, "no PHY found\n"); | |
2108 | return -EIO; | |
2109 | } | |
2110 | phydev->is_internal = true; | |
2111 | dev->interface = PHY_INTERFACE_MODE_GMII; | |
2112 | break; | |
2113 | ||
2114 | default: | |
2115 | netdev_err(dev->net, "Unknown CHIP ID found\n"); | |
2116 | return -EIO; | |
2117 | } | |
2118 | ||
2119 | /* if phyirq is not set, use polling mode in phylib */ | |
2120 | if (dev->domain_data.phyirq > 0) | |
2121 | phydev->irq = dev->domain_data.phyirq; | |
2122 | else | |
2123 | phydev->irq = 0; | |
2124 | netdev_dbg(dev->net, "phydev->irq = %d\n", phydev->irq); | |
2125 | ||
2126 | /* set to AUTOMDIX */ | |
2127 | phydev->mdix = ETH_TP_MDI_AUTO; | |
2128 | ||
2129 | ret = phy_connect_direct(dev->net, phydev, | |
2130 | lan78xx_link_status_change, | |
2131 | dev->interface); | |
2132 | if (ret) { | |
2133 | netdev_err(dev->net, "can't attach PHY to %s\n", | |
2134 | dev->mdiobus->id); | |
2135 | if (dev->chipid == ID_REV_CHIP_ID_7801_) { | |
2136 | if (phy_is_pseudo_fixed_link(phydev)) { | |
2137 | fixed_phy_unregister(phydev); | |
2138 | } else { | |
2139 | phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, | |
2140 | 0xfffffff0); | |
2141 | phy_unregister_fixup_for_uid(PHY_LAN8835, | |
2142 | 0xfffffff0); | |
2143 | } | |
2144 | } | |
2145 | return -EIO; | |
2146 | } | |
2147 | ||
2148 | /* MAC doesn't support 1000T Half */ | |
2149 | phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT); | |
2150 | ||
2151 | /* support both flow controls */ | |
2152 | dev->fc_request_control = (FLOW_CTRL_RX | FLOW_CTRL_TX); | |
2153 | linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, | |
2154 | phydev->advertising); | |
2155 | linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, | |
2156 | phydev->advertising); | |
2157 | mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control); | |
2158 | mii_adv_to_linkmode_adv_t(fc, mii_adv); | |
2159 | linkmode_or(phydev->advertising, fc, phydev->advertising); | |
2160 | ||
2161 | if (phydev->mdio.dev.of_node) { | |
2162 | u32 reg; | |
2163 | int len; | |
2164 | ||
2165 | len = of_property_count_elems_of_size(phydev->mdio.dev.of_node, | |
2166 | "microchip,led-modes", | |
2167 | sizeof(u32)); | |
2168 | if (len >= 0) { | |
2169 | /* Ensure the appropriate LEDs are enabled */ | |
2170 | lan78xx_read_reg(dev, HW_CFG, ®); | |
2171 | reg &= ~(HW_CFG_LED0_EN_ | | |
2172 | HW_CFG_LED1_EN_ | | |
2173 | HW_CFG_LED2_EN_ | | |
2174 | HW_CFG_LED3_EN_); | |
2175 | reg |= (len > 0) * HW_CFG_LED0_EN_ | | |
2176 | (len > 1) * HW_CFG_LED1_EN_ | | |
2177 | (len > 2) * HW_CFG_LED2_EN_ | | |
2178 | (len > 3) * HW_CFG_LED3_EN_; | |
2179 | lan78xx_write_reg(dev, HW_CFG, reg); | |
2180 | } | |
2181 | } | |
2182 | ||
2183 | genphy_config_aneg(phydev); | |
2184 | ||
2185 | dev->fc_autoneg = phydev->autoneg; | |
2186 | ||
2187 | return 0; | |
2188 | } | |
2189 | ||
2190 | static int lan78xx_set_rx_max_frame_length(struct lan78xx_net *dev, int size) | |
2191 | { | |
2192 | int ret = 0; | |
2193 | u32 buf; | |
2194 | bool rxenabled; | |
2195 | ||
2196 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
2197 | ||
2198 | rxenabled = ((buf & MAC_RX_RXEN_) != 0); | |
2199 | ||
2200 | if (rxenabled) { | |
2201 | buf &= ~MAC_RX_RXEN_; | |
2202 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
2203 | } | |
2204 | ||
2205 | /* add 4 to size for FCS */ | |
2206 | buf &= ~MAC_RX_MAX_SIZE_MASK_; | |
2207 | buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT_) & MAC_RX_MAX_SIZE_MASK_); | |
2208 | ||
2209 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
2210 | ||
2211 | if (rxenabled) { | |
2212 | buf |= MAC_RX_RXEN_; | |
2213 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
2214 | } | |
2215 | ||
2216 | return 0; | |
2217 | } | |
2218 | ||
2219 | static int unlink_urbs(struct lan78xx_net *dev, struct sk_buff_head *q) | |
2220 | { | |
2221 | struct sk_buff *skb; | |
2222 | unsigned long flags; | |
2223 | int count = 0; | |
2224 | ||
2225 | spin_lock_irqsave(&q->lock, flags); | |
2226 | while (!skb_queue_empty(q)) { | |
2227 | struct skb_data *entry; | |
2228 | struct urb *urb; | |
2229 | int ret; | |
2230 | ||
2231 | skb_queue_walk(q, skb) { | |
2232 | entry = (struct skb_data *)skb->cb; | |
2233 | if (entry->state != unlink_start) | |
2234 | goto found; | |
2235 | } | |
2236 | break; | |
2237 | found: | |
2238 | entry->state = unlink_start; | |
2239 | urb = entry->urb; | |
2240 | ||
2241 | /* Get reference count of the URB to avoid it to be | |
2242 | * freed during usb_unlink_urb, which may trigger | |
2243 | * use-after-free problem inside usb_unlink_urb since | |
2244 | * usb_unlink_urb is always racing with .complete | |
2245 | * handler(include defer_bh). | |
2246 | */ | |
2247 | usb_get_urb(urb); | |
2248 | spin_unlock_irqrestore(&q->lock, flags); | |
2249 | /* during some PM-driven resume scenarios, | |
2250 | * these (async) unlinks complete immediately | |
2251 | */ | |
2252 | ret = usb_unlink_urb(urb); | |
2253 | if (ret != -EINPROGRESS && ret != 0) | |
2254 | netdev_dbg(dev->net, "unlink urb err, %d\n", ret); | |
2255 | else | |
2256 | count++; | |
2257 | usb_put_urb(urb); | |
2258 | spin_lock_irqsave(&q->lock, flags); | |
2259 | } | |
2260 | spin_unlock_irqrestore(&q->lock, flags); | |
2261 | return count; | |
2262 | } | |
2263 | ||
2264 | static int lan78xx_change_mtu(struct net_device *netdev, int new_mtu) | |
2265 | { | |
2266 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2267 | int ll_mtu = new_mtu + netdev->hard_header_len; | |
2268 | int old_hard_mtu = dev->hard_mtu; | |
2269 | int old_rx_urb_size = dev->rx_urb_size; | |
2270 | int ret; | |
2271 | ||
2272 | /* no second zero-length packet read wanted after mtu-sized packets */ | |
2273 | if ((ll_mtu % dev->maxpacket) == 0) | |
2274 | return -EDOM; | |
2275 | ||
2276 | ret = lan78xx_set_rx_max_frame_length(dev, new_mtu + VLAN_ETH_HLEN); | |
2277 | ||
2278 | netdev->mtu = new_mtu; | |
2279 | ||
2280 | dev->hard_mtu = netdev->mtu + netdev->hard_header_len; | |
2281 | if (dev->rx_urb_size == old_hard_mtu) { | |
2282 | dev->rx_urb_size = dev->hard_mtu; | |
2283 | if (dev->rx_urb_size > old_rx_urb_size) { | |
2284 | if (netif_running(dev->net)) { | |
2285 | unlink_urbs(dev, &dev->rxq); | |
2286 | tasklet_schedule(&dev->bh); | |
2287 | } | |
2288 | } | |
2289 | } | |
2290 | ||
2291 | return 0; | |
2292 | } | |
2293 | ||
2294 | static int lan78xx_set_mac_addr(struct net_device *netdev, void *p) | |
2295 | { | |
2296 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2297 | struct sockaddr *addr = p; | |
2298 | u32 addr_lo, addr_hi; | |
2299 | int ret; | |
2300 | ||
2301 | if (netif_running(netdev)) | |
2302 | return -EBUSY; | |
2303 | ||
2304 | if (!is_valid_ether_addr(addr->sa_data)) | |
2305 | return -EADDRNOTAVAIL; | |
2306 | ||
2307 | ether_addr_copy(netdev->dev_addr, addr->sa_data); | |
2308 | ||
2309 | addr_lo = netdev->dev_addr[0] | | |
2310 | netdev->dev_addr[1] << 8 | | |
2311 | netdev->dev_addr[2] << 16 | | |
2312 | netdev->dev_addr[3] << 24; | |
2313 | addr_hi = netdev->dev_addr[4] | | |
2314 | netdev->dev_addr[5] << 8; | |
2315 | ||
2316 | ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo); | |
2317 | ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi); | |
2318 | ||
2319 | /* Added to support MAC address changes */ | |
2320 | ret = lan78xx_write_reg(dev, MAF_LO(0), addr_lo); | |
2321 | ret = lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); | |
2322 | ||
2323 | return 0; | |
2324 | } | |
2325 | ||
2326 | /* Enable or disable Rx checksum offload engine */ | |
2327 | static int lan78xx_set_features(struct net_device *netdev, | |
2328 | netdev_features_t features) | |
2329 | { | |
2330 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2331 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2332 | unsigned long flags; | |
2333 | int ret; | |
2334 | ||
2335 | spin_lock_irqsave(&pdata->rfe_ctl_lock, flags); | |
2336 | ||
2337 | if (features & NETIF_F_RXCSUM) { | |
2338 | pdata->rfe_ctl |= RFE_CTL_TCPUDP_COE_ | RFE_CTL_IP_COE_; | |
2339 | pdata->rfe_ctl |= RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_; | |
2340 | } else { | |
2341 | pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_COE_ | RFE_CTL_IP_COE_); | |
2342 | pdata->rfe_ctl &= ~(RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_); | |
2343 | } | |
2344 | ||
2345 | if (features & NETIF_F_HW_VLAN_CTAG_RX) | |
2346 | pdata->rfe_ctl |= RFE_CTL_VLAN_STRIP_; | |
2347 | else | |
2348 | pdata->rfe_ctl &= ~RFE_CTL_VLAN_STRIP_; | |
2349 | ||
2350 | if (features & NETIF_F_HW_VLAN_CTAG_FILTER) | |
2351 | pdata->rfe_ctl |= RFE_CTL_VLAN_FILTER_; | |
2352 | else | |
2353 | pdata->rfe_ctl &= ~RFE_CTL_VLAN_FILTER_; | |
2354 | ||
2355 | spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); | |
2356 | ||
2357 | ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); | |
2358 | ||
2359 | return 0; | |
2360 | } | |
2361 | ||
2362 | static void lan78xx_deferred_vlan_write(struct work_struct *param) | |
2363 | { | |
2364 | struct lan78xx_priv *pdata = | |
2365 | container_of(param, struct lan78xx_priv, set_vlan); | |
2366 | struct lan78xx_net *dev = pdata->dev; | |
2367 | ||
2368 | lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, 0, | |
2369 | DP_SEL_VHF_VLAN_LEN, pdata->vlan_table); | |
2370 | } | |
2371 | ||
2372 | static int lan78xx_vlan_rx_add_vid(struct net_device *netdev, | |
2373 | __be16 proto, u16 vid) | |
2374 | { | |
2375 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2376 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2377 | u16 vid_bit_index; | |
2378 | u16 vid_dword_index; | |
2379 | ||
2380 | vid_dword_index = (vid >> 5) & 0x7F; | |
2381 | vid_bit_index = vid & 0x1F; | |
2382 | ||
2383 | pdata->vlan_table[vid_dword_index] |= (1 << vid_bit_index); | |
2384 | ||
2385 | /* defer register writes to a sleepable context */ | |
2386 | schedule_work(&pdata->set_vlan); | |
2387 | ||
2388 | return 0; | |
2389 | } | |
2390 | ||
2391 | static int lan78xx_vlan_rx_kill_vid(struct net_device *netdev, | |
2392 | __be16 proto, u16 vid) | |
2393 | { | |
2394 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2395 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2396 | u16 vid_bit_index; | |
2397 | u16 vid_dword_index; | |
2398 | ||
2399 | vid_dword_index = (vid >> 5) & 0x7F; | |
2400 | vid_bit_index = vid & 0x1F; | |
2401 | ||
2402 | pdata->vlan_table[vid_dword_index] &= ~(1 << vid_bit_index); | |
2403 | ||
2404 | /* defer register writes to a sleepable context */ | |
2405 | schedule_work(&pdata->set_vlan); | |
2406 | ||
2407 | return 0; | |
2408 | } | |
2409 | ||
2410 | static void lan78xx_init_ltm(struct lan78xx_net *dev) | |
2411 | { | |
2412 | int ret; | |
2413 | u32 buf; | |
2414 | u32 regs[6] = { 0 }; | |
2415 | ||
2416 | ret = lan78xx_read_reg(dev, USB_CFG1, &buf); | |
2417 | if (buf & USB_CFG1_LTM_ENABLE_) { | |
2418 | u8 temp[2]; | |
2419 | /* Get values from EEPROM first */ | |
2420 | if (lan78xx_read_eeprom(dev, 0x3F, 2, temp) == 0) { | |
2421 | if (temp[0] == 24) { | |
2422 | ret = lan78xx_read_raw_eeprom(dev, | |
2423 | temp[1] * 2, | |
2424 | 24, | |
2425 | (u8 *)regs); | |
2426 | if (ret < 0) | |
2427 | return; | |
2428 | } | |
2429 | } else if (lan78xx_read_otp(dev, 0x3F, 2, temp) == 0) { | |
2430 | if (temp[0] == 24) { | |
2431 | ret = lan78xx_read_raw_otp(dev, | |
2432 | temp[1] * 2, | |
2433 | 24, | |
2434 | (u8 *)regs); | |
2435 | if (ret < 0) | |
2436 | return; | |
2437 | } | |
2438 | } | |
2439 | } | |
2440 | ||
2441 | lan78xx_write_reg(dev, LTM_BELT_IDLE0, regs[0]); | |
2442 | lan78xx_write_reg(dev, LTM_BELT_IDLE1, regs[1]); | |
2443 | lan78xx_write_reg(dev, LTM_BELT_ACT0, regs[2]); | |
2444 | lan78xx_write_reg(dev, LTM_BELT_ACT1, regs[3]); | |
2445 | lan78xx_write_reg(dev, LTM_INACTIVE0, regs[4]); | |
2446 | lan78xx_write_reg(dev, LTM_INACTIVE1, regs[5]); | |
2447 | } | |
2448 | ||
2449 | static int lan78xx_reset(struct lan78xx_net *dev) | |
2450 | { | |
2451 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2452 | u32 buf; | |
2453 | int ret = 0; | |
2454 | unsigned long timeout; | |
2455 | u8 sig; | |
2456 | ||
2457 | ret = lan78xx_read_reg(dev, HW_CFG, &buf); | |
2458 | buf |= HW_CFG_LRST_; | |
2459 | ret = lan78xx_write_reg(dev, HW_CFG, buf); | |
2460 | ||
2461 | timeout = jiffies + HZ; | |
2462 | do { | |
2463 | mdelay(1); | |
2464 | ret = lan78xx_read_reg(dev, HW_CFG, &buf); | |
2465 | if (time_after(jiffies, timeout)) { | |
2466 | netdev_warn(dev->net, | |
2467 | "timeout on completion of LiteReset"); | |
2468 | return -EIO; | |
2469 | } | |
2470 | } while (buf & HW_CFG_LRST_); | |
2471 | ||
2472 | lan78xx_init_mac_address(dev); | |
2473 | ||
2474 | /* save DEVID for later usage */ | |
2475 | ret = lan78xx_read_reg(dev, ID_REV, &buf); | |
2476 | dev->chipid = (buf & ID_REV_CHIP_ID_MASK_) >> 16; | |
2477 | dev->chiprev = buf & ID_REV_CHIP_REV_MASK_; | |
2478 | ||
2479 | /* Respond to the IN token with a NAK */ | |
2480 | ret = lan78xx_read_reg(dev, USB_CFG0, &buf); | |
2481 | buf |= USB_CFG_BIR_; | |
2482 | ret = lan78xx_write_reg(dev, USB_CFG0, buf); | |
2483 | ||
2484 | /* Init LTM */ | |
2485 | lan78xx_init_ltm(dev); | |
2486 | ||
2487 | if (dev->udev->speed == USB_SPEED_SUPER) { | |
2488 | buf = DEFAULT_BURST_CAP_SIZE / SS_USB_PKT_SIZE; | |
2489 | dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; | |
2490 | dev->rx_qlen = 4; | |
2491 | dev->tx_qlen = 4; | |
2492 | } else if (dev->udev->speed == USB_SPEED_HIGH) { | |
2493 | buf = DEFAULT_BURST_CAP_SIZE / HS_USB_PKT_SIZE; | |
2494 | dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; | |
2495 | dev->rx_qlen = RX_MAX_QUEUE_MEMORY / dev->rx_urb_size; | |
2496 | dev->tx_qlen = RX_MAX_QUEUE_MEMORY / dev->hard_mtu; | |
2497 | } else { | |
2498 | buf = DEFAULT_BURST_CAP_SIZE / FS_USB_PKT_SIZE; | |
2499 | dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; | |
2500 | dev->rx_qlen = 4; | |
2501 | dev->tx_qlen = 4; | |
2502 | } | |
2503 | ||
2504 | ret = lan78xx_write_reg(dev, BURST_CAP, buf); | |
2505 | ret = lan78xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY); | |
2506 | ||
2507 | ret = lan78xx_read_reg(dev, HW_CFG, &buf); | |
2508 | buf |= HW_CFG_MEF_; | |
2509 | ret = lan78xx_write_reg(dev, HW_CFG, buf); | |
2510 | ||
2511 | ret = lan78xx_read_reg(dev, USB_CFG0, &buf); | |
2512 | buf |= USB_CFG_BCE_; | |
2513 | ret = lan78xx_write_reg(dev, USB_CFG0, buf); | |
2514 | ||
2515 | /* set FIFO sizes */ | |
2516 | buf = (MAX_RX_FIFO_SIZE - 512) / 512; | |
2517 | ret = lan78xx_write_reg(dev, FCT_RX_FIFO_END, buf); | |
2518 | ||
2519 | buf = (MAX_TX_FIFO_SIZE - 512) / 512; | |
2520 | ret = lan78xx_write_reg(dev, FCT_TX_FIFO_END, buf); | |
2521 | ||
2522 | ret = lan78xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_); | |
2523 | ret = lan78xx_write_reg(dev, FLOW, 0); | |
2524 | ret = lan78xx_write_reg(dev, FCT_FLOW, 0); | |
2525 | ||
2526 | /* Don't need rfe_ctl_lock during initialisation */ | |
2527 | ret = lan78xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl); | |
2528 | pdata->rfe_ctl |= RFE_CTL_BCAST_EN_ | RFE_CTL_DA_PERFECT_; | |
2529 | ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); | |
2530 | ||
2531 | /* Enable or disable checksum offload engines */ | |
2532 | lan78xx_set_features(dev->net, dev->net->features); | |
2533 | ||
2534 | lan78xx_set_multicast(dev->net); | |
2535 | ||
2536 | /* reset PHY */ | |
2537 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
2538 | buf |= PMT_CTL_PHY_RST_; | |
2539 | ret = lan78xx_write_reg(dev, PMT_CTL, buf); | |
2540 | ||
2541 | timeout = jiffies + HZ; | |
2542 | do { | |
2543 | mdelay(1); | |
2544 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
2545 | if (time_after(jiffies, timeout)) { | |
2546 | netdev_warn(dev->net, "timeout waiting for PHY Reset"); | |
2547 | return -EIO; | |
2548 | } | |
2549 | } while ((buf & PMT_CTL_PHY_RST_) || !(buf & PMT_CTL_READY_)); | |
2550 | ||
2551 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); | |
2552 | /* LAN7801 only has RGMII mode */ | |
2553 | if (dev->chipid == ID_REV_CHIP_ID_7801_) | |
2554 | buf &= ~MAC_CR_GMII_EN_; | |
2555 | ||
2556 | if (dev->chipid == ID_REV_CHIP_ID_7800_) { | |
2557 | ret = lan78xx_read_raw_eeprom(dev, 0, 1, &sig); | |
2558 | if (!ret && sig != EEPROM_INDICATOR) { | |
2559 | /* Implies there is no external eeprom. Set mac speed */ | |
2560 | netdev_info(dev->net, "No External EEPROM. Setting MAC Speed\n"); | |
2561 | buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_; | |
2562 | } | |
2563 | } | |
2564 | ret = lan78xx_write_reg(dev, MAC_CR, buf); | |
2565 | ||
2566 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
2567 | buf |= MAC_TX_TXEN_; | |
2568 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
2569 | ||
2570 | ret = lan78xx_read_reg(dev, FCT_TX_CTL, &buf); | |
2571 | buf |= FCT_TX_CTL_EN_; | |
2572 | ret = lan78xx_write_reg(dev, FCT_TX_CTL, buf); | |
2573 | ||
2574 | ret = lan78xx_set_rx_max_frame_length(dev, | |
2575 | dev->net->mtu + VLAN_ETH_HLEN); | |
2576 | ||
2577 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
2578 | buf |= MAC_RX_RXEN_; | |
2579 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
2580 | ||
2581 | ret = lan78xx_read_reg(dev, FCT_RX_CTL, &buf); | |
2582 | buf |= FCT_RX_CTL_EN_; | |
2583 | ret = lan78xx_write_reg(dev, FCT_RX_CTL, buf); | |
2584 | ||
2585 | return 0; | |
2586 | } | |
2587 | ||
2588 | static void lan78xx_init_stats(struct lan78xx_net *dev) | |
2589 | { | |
2590 | u32 *p; | |
2591 | int i; | |
2592 | ||
2593 | /* initialize for stats update | |
2594 | * some counters are 20bits and some are 32bits | |
2595 | */ | |
2596 | p = (u32 *)&dev->stats.rollover_max; | |
2597 | for (i = 0; i < (sizeof(dev->stats.rollover_max) / (sizeof(u32))); i++) | |
2598 | p[i] = 0xFFFFF; | |
2599 | ||
2600 | dev->stats.rollover_max.rx_unicast_byte_count = 0xFFFFFFFF; | |
2601 | dev->stats.rollover_max.rx_broadcast_byte_count = 0xFFFFFFFF; | |
2602 | dev->stats.rollover_max.rx_multicast_byte_count = 0xFFFFFFFF; | |
2603 | dev->stats.rollover_max.eee_rx_lpi_transitions = 0xFFFFFFFF; | |
2604 | dev->stats.rollover_max.eee_rx_lpi_time = 0xFFFFFFFF; | |
2605 | dev->stats.rollover_max.tx_unicast_byte_count = 0xFFFFFFFF; | |
2606 | dev->stats.rollover_max.tx_broadcast_byte_count = 0xFFFFFFFF; | |
2607 | dev->stats.rollover_max.tx_multicast_byte_count = 0xFFFFFFFF; | |
2608 | dev->stats.rollover_max.eee_tx_lpi_transitions = 0xFFFFFFFF; | |
2609 | dev->stats.rollover_max.eee_tx_lpi_time = 0xFFFFFFFF; | |
2610 | ||
2611 | set_bit(EVENT_STAT_UPDATE, &dev->flags); | |
2612 | } | |
2613 | ||
2614 | static int lan78xx_open(struct net_device *net) | |
2615 | { | |
2616 | struct lan78xx_net *dev = netdev_priv(net); | |
2617 | int ret; | |
2618 | ||
2619 | ret = usb_autopm_get_interface(dev->intf); | |
2620 | if (ret < 0) | |
2621 | goto out; | |
2622 | ||
2623 | phy_start(net->phydev); | |
2624 | ||
2625 | netif_dbg(dev, ifup, dev->net, "phy initialised successfully"); | |
2626 | ||
2627 | /* for Link Check */ | |
2628 | if (dev->urb_intr) { | |
2629 | ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL); | |
2630 | if (ret < 0) { | |
2631 | netif_err(dev, ifup, dev->net, | |
2632 | "intr submit %d\n", ret); | |
2633 | goto done; | |
2634 | } | |
2635 | } | |
2636 | ||
2637 | lan78xx_init_stats(dev); | |
2638 | ||
2639 | set_bit(EVENT_DEV_OPEN, &dev->flags); | |
2640 | ||
2641 | netif_start_queue(net); | |
2642 | ||
2643 | dev->link_on = false; | |
2644 | ||
2645 | lan78xx_defer_kevent(dev, EVENT_LINK_RESET); | |
2646 | done: | |
2647 | usb_autopm_put_interface(dev->intf); | |
2648 | ||
2649 | out: | |
2650 | return ret; | |
2651 | } | |
2652 | ||
2653 | static void lan78xx_terminate_urbs(struct lan78xx_net *dev) | |
2654 | { | |
2655 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup); | |
2656 | DECLARE_WAITQUEUE(wait, current); | |
2657 | int temp; | |
2658 | ||
2659 | /* ensure there are no more active urbs */ | |
2660 | add_wait_queue(&unlink_wakeup, &wait); | |
2661 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2662 | dev->wait = &unlink_wakeup; | |
2663 | temp = unlink_urbs(dev, &dev->txq) + unlink_urbs(dev, &dev->rxq); | |
2664 | ||
2665 | /* maybe wait for deletions to finish. */ | |
2666 | while (!skb_queue_empty(&dev->rxq) && | |
2667 | !skb_queue_empty(&dev->txq) && | |
2668 | !skb_queue_empty(&dev->done)) { | |
2669 | schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); | |
2670 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2671 | netif_dbg(dev, ifdown, dev->net, | |
2672 | "waited for %d urb completions\n", temp); | |
2673 | } | |
2674 | set_current_state(TASK_RUNNING); | |
2675 | dev->wait = NULL; | |
2676 | remove_wait_queue(&unlink_wakeup, &wait); | |
2677 | } | |
2678 | ||
2679 | static int lan78xx_stop(struct net_device *net) | |
2680 | { | |
2681 | struct lan78xx_net *dev = netdev_priv(net); | |
2682 | ||
2683 | if (timer_pending(&dev->stat_monitor)) | |
2684 | del_timer_sync(&dev->stat_monitor); | |
2685 | ||
2686 | if (net->phydev) | |
2687 | phy_stop(net->phydev); | |
2688 | ||
2689 | clear_bit(EVENT_DEV_OPEN, &dev->flags); | |
2690 | netif_stop_queue(net); | |
2691 | ||
2692 | netif_info(dev, ifdown, dev->net, | |
2693 | "stop stats: rx/tx %lu/%lu, errs %lu/%lu\n", | |
2694 | net->stats.rx_packets, net->stats.tx_packets, | |
2695 | net->stats.rx_errors, net->stats.tx_errors); | |
2696 | ||
2697 | lan78xx_terminate_urbs(dev); | |
2698 | ||
2699 | usb_kill_urb(dev->urb_intr); | |
2700 | ||
2701 | skb_queue_purge(&dev->rxq_pause); | |
2702 | ||
2703 | /* deferred work (task, timer, softirq) must also stop. | |
2704 | * can't flush_scheduled_work() until we drop rtnl (later), | |
2705 | * else workers could deadlock; so make workers a NOP. | |
2706 | */ | |
2707 | dev->flags = 0; | |
2708 | cancel_delayed_work_sync(&dev->wq); | |
2709 | tasklet_kill(&dev->bh); | |
2710 | ||
2711 | usb_autopm_put_interface(dev->intf); | |
2712 | ||
2713 | return 0; | |
2714 | } | |
2715 | ||
2716 | static struct sk_buff *lan78xx_tx_prep(struct lan78xx_net *dev, | |
2717 | struct sk_buff *skb, gfp_t flags) | |
2718 | { | |
2719 | u32 tx_cmd_a, tx_cmd_b; | |
2720 | void *ptr; | |
2721 | ||
2722 | if (skb_cow_head(skb, TX_OVERHEAD)) { | |
2723 | dev_kfree_skb_any(skb); | |
2724 | return NULL; | |
2725 | } | |
2726 | ||
2727 | if (skb_linearize(skb)) { | |
2728 | dev_kfree_skb_any(skb); | |
2729 | return NULL; | |
2730 | } | |
2731 | ||
2732 | tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN_MASK_) | TX_CMD_A_FCS_; | |
2733 | ||
2734 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2735 | tx_cmd_a |= TX_CMD_A_IPE_ | TX_CMD_A_TPE_; | |
2736 | ||
2737 | tx_cmd_b = 0; | |
2738 | if (skb_is_gso(skb)) { | |
2739 | u16 mss = max(skb_shinfo(skb)->gso_size, TX_CMD_B_MSS_MIN_); | |
2740 | ||
2741 | tx_cmd_b = (mss << TX_CMD_B_MSS_SHIFT_) & TX_CMD_B_MSS_MASK_; | |
2742 | ||
2743 | tx_cmd_a |= TX_CMD_A_LSO_; | |
2744 | } | |
2745 | ||
2746 | if (skb_vlan_tag_present(skb)) { | |
2747 | tx_cmd_a |= TX_CMD_A_IVTG_; | |
2748 | tx_cmd_b |= skb_vlan_tag_get(skb) & TX_CMD_B_VTAG_MASK_; | |
2749 | } | |
2750 | ||
2751 | ptr = skb_push(skb, 8); | |
2752 | put_unaligned_le32(tx_cmd_a, ptr); | |
2753 | put_unaligned_le32(tx_cmd_b, ptr + 4); | |
2754 | ||
2755 | return skb; | |
2756 | } | |
2757 | ||
2758 | static enum skb_state defer_bh(struct lan78xx_net *dev, struct sk_buff *skb, | |
2759 | struct sk_buff_head *list, enum skb_state state) | |
2760 | { | |
2761 | unsigned long flags; | |
2762 | enum skb_state old_state; | |
2763 | struct skb_data *entry = (struct skb_data *)skb->cb; | |
2764 | ||
2765 | spin_lock_irqsave(&list->lock, flags); | |
2766 | old_state = entry->state; | |
2767 | entry->state = state; | |
2768 | ||
2769 | __skb_unlink(skb, list); | |
2770 | spin_unlock(&list->lock); | |
2771 | spin_lock(&dev->done.lock); | |
2772 | ||
2773 | __skb_queue_tail(&dev->done, skb); | |
2774 | if (skb_queue_len(&dev->done) == 1) | |
2775 | tasklet_schedule(&dev->bh); | |
2776 | spin_unlock_irqrestore(&dev->done.lock, flags); | |
2777 | ||
2778 | return old_state; | |
2779 | } | |
2780 | ||
2781 | static void tx_complete(struct urb *urb) | |
2782 | { | |
2783 | struct sk_buff *skb = (struct sk_buff *)urb->context; | |
2784 | struct skb_data *entry = (struct skb_data *)skb->cb; | |
2785 | struct lan78xx_net *dev = entry->dev; | |
2786 | ||
2787 | if (urb->status == 0) { | |
2788 | dev->net->stats.tx_packets += entry->num_of_packet; | |
2789 | dev->net->stats.tx_bytes += entry->length; | |
2790 | } else { | |
2791 | dev->net->stats.tx_errors++; | |
2792 | ||
2793 | switch (urb->status) { | |
2794 | case -EPIPE: | |
2795 | lan78xx_defer_kevent(dev, EVENT_TX_HALT); | |
2796 | break; | |
2797 | ||
2798 | /* software-driven interface shutdown */ | |
2799 | case -ECONNRESET: | |
2800 | case -ESHUTDOWN: | |
2801 | break; | |
2802 | ||
2803 | case -EPROTO: | |
2804 | case -ETIME: | |
2805 | case -EILSEQ: | |
2806 | netif_stop_queue(dev->net); | |
2807 | break; | |
2808 | default: | |
2809 | netif_dbg(dev, tx_err, dev->net, | |
2810 | "tx err %d\n", entry->urb->status); | |
2811 | break; | |
2812 | } | |
2813 | } | |
2814 | ||
2815 | usb_autopm_put_interface_async(dev->intf); | |
2816 | ||
2817 | defer_bh(dev, skb, &dev->txq, tx_done); | |
2818 | } | |
2819 | ||
2820 | static void lan78xx_queue_skb(struct sk_buff_head *list, | |
2821 | struct sk_buff *newsk, enum skb_state state) | |
2822 | { | |
2823 | struct skb_data *entry = (struct skb_data *)newsk->cb; | |
2824 | ||
2825 | __skb_queue_tail(list, newsk); | |
2826 | entry->state = state; | |
2827 | } | |
2828 | ||
2829 | static netdev_tx_t | |
2830 | lan78xx_start_xmit(struct sk_buff *skb, struct net_device *net) | |
2831 | { | |
2832 | struct lan78xx_net *dev = netdev_priv(net); | |
2833 | struct sk_buff *skb2 = NULL; | |
2834 | ||
2835 | if (skb) { | |
2836 | skb_tx_timestamp(skb); | |
2837 | skb2 = lan78xx_tx_prep(dev, skb, GFP_ATOMIC); | |
2838 | } | |
2839 | ||
2840 | if (skb2) { | |
2841 | skb_queue_tail(&dev->txq_pend, skb2); | |
2842 | ||
2843 | /* throttle TX patch at slower than SUPER SPEED USB */ | |
2844 | if ((dev->udev->speed < USB_SPEED_SUPER) && | |
2845 | (skb_queue_len(&dev->txq_pend) > 10)) | |
2846 | netif_stop_queue(net); | |
2847 | } else { | |
2848 | netif_dbg(dev, tx_err, dev->net, | |
2849 | "lan78xx_tx_prep return NULL\n"); | |
2850 | dev->net->stats.tx_errors++; | |
2851 | dev->net->stats.tx_dropped++; | |
2852 | } | |
2853 | ||
2854 | tasklet_schedule(&dev->bh); | |
2855 | ||
2856 | return NETDEV_TX_OK; | |
2857 | } | |
2858 | ||
2859 | static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf) | |
2860 | { | |
2861 | struct lan78xx_priv *pdata = NULL; | |
2862 | int ret; | |
2863 | int i; | |
2864 | ||
2865 | dev->data[0] = (unsigned long)kzalloc(sizeof(*pdata), GFP_KERNEL); | |
2866 | ||
2867 | pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2868 | if (!pdata) { | |
2869 | netdev_warn(dev->net, "Unable to allocate lan78xx_priv"); | |
2870 | return -ENOMEM; | |
2871 | } | |
2872 | ||
2873 | pdata->dev = dev; | |
2874 | ||
2875 | spin_lock_init(&pdata->rfe_ctl_lock); | |
2876 | mutex_init(&pdata->dataport_mutex); | |
2877 | ||
2878 | INIT_WORK(&pdata->set_multicast, lan78xx_deferred_multicast_write); | |
2879 | ||
2880 | for (i = 0; i < DP_SEL_VHF_VLAN_LEN; i++) | |
2881 | pdata->vlan_table[i] = 0; | |
2882 | ||
2883 | INIT_WORK(&pdata->set_vlan, lan78xx_deferred_vlan_write); | |
2884 | ||
2885 | dev->net->features = 0; | |
2886 | ||
2887 | if (DEFAULT_TX_CSUM_ENABLE) | |
2888 | dev->net->features |= NETIF_F_HW_CSUM; | |
2889 | ||
2890 | if (DEFAULT_RX_CSUM_ENABLE) | |
2891 | dev->net->features |= NETIF_F_RXCSUM; | |
2892 | ||
2893 | if (DEFAULT_TSO_CSUM_ENABLE) | |
2894 | dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_SG; | |
2895 | ||
2896 | if (DEFAULT_VLAN_RX_OFFLOAD) | |
2897 | dev->net->features |= NETIF_F_HW_VLAN_CTAG_RX; | |
2898 | ||
2899 | if (DEFAULT_VLAN_FILTER_ENABLE) | |
2900 | dev->net->features |= NETIF_F_HW_VLAN_CTAG_FILTER; | |
2901 | ||
2902 | dev->net->hw_features = dev->net->features; | |
2903 | ||
2904 | ret = lan78xx_setup_irq_domain(dev); | |
2905 | if (ret < 0) { | |
2906 | netdev_warn(dev->net, | |
2907 | "lan78xx_setup_irq_domain() failed : %d", ret); | |
2908 | goto out1; | |
2909 | } | |
2910 | ||
2911 | dev->net->hard_header_len += TX_OVERHEAD; | |
2912 | dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; | |
2913 | ||
2914 | /* Init all registers */ | |
2915 | ret = lan78xx_reset(dev); | |
2916 | if (ret) { | |
2917 | netdev_warn(dev->net, "Registers INIT FAILED...."); | |
2918 | goto out2; | |
2919 | } | |
2920 | ||
2921 | ret = lan78xx_mdio_init(dev); | |
2922 | if (ret) { | |
2923 | netdev_warn(dev->net, "MDIO INIT FAILED....."); | |
2924 | goto out2; | |
2925 | } | |
2926 | ||
2927 | dev->net->flags |= IFF_MULTICAST; | |
2928 | ||
2929 | pdata->wol = WAKE_MAGIC; | |
2930 | ||
2931 | return ret; | |
2932 | ||
2933 | out2: | |
2934 | lan78xx_remove_irq_domain(dev); | |
2935 | ||
2936 | out1: | |
2937 | netdev_warn(dev->net, "Bind routine FAILED"); | |
2938 | cancel_work_sync(&pdata->set_multicast); | |
2939 | cancel_work_sync(&pdata->set_vlan); | |
2940 | kfree(pdata); | |
2941 | return ret; | |
2942 | } | |
2943 | ||
2944 | static void lan78xx_unbind(struct lan78xx_net *dev, struct usb_interface *intf) | |
2945 | { | |
2946 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2947 | ||
2948 | lan78xx_remove_irq_domain(dev); | |
2949 | ||
2950 | lan78xx_remove_mdio(dev); | |
2951 | ||
2952 | if (pdata) { | |
2953 | cancel_work_sync(&pdata->set_multicast); | |
2954 | cancel_work_sync(&pdata->set_vlan); | |
2955 | netif_dbg(dev, ifdown, dev->net, "free pdata"); | |
2956 | kfree(pdata); | |
2957 | pdata = NULL; | |
2958 | dev->data[0] = 0; | |
2959 | } | |
2960 | } | |
2961 | ||
2962 | static void lan78xx_rx_csum_offload(struct lan78xx_net *dev, | |
2963 | struct sk_buff *skb, | |
2964 | u32 rx_cmd_a, u32 rx_cmd_b) | |
2965 | { | |
2966 | /* HW Checksum offload appears to be flawed if used when not stripping | |
2967 | * VLAN headers. Drop back to S/W checksums under these conditions. | |
2968 | */ | |
2969 | if (!(dev->net->features & NETIF_F_RXCSUM) || | |
2970 | unlikely(rx_cmd_a & RX_CMD_A_ICSM_) || | |
2971 | ((rx_cmd_a & RX_CMD_A_FVTG_) && | |
2972 | !(dev->net->features & NETIF_F_HW_VLAN_CTAG_RX))) { | |
2973 | skb->ip_summed = CHECKSUM_NONE; | |
2974 | } else { | |
2975 | skb->csum = ntohs((u16)(rx_cmd_b >> RX_CMD_B_CSUM_SHIFT_)); | |
2976 | skb->ip_summed = CHECKSUM_COMPLETE; | |
2977 | } | |
2978 | } | |
2979 | ||
2980 | static void lan78xx_rx_vlan_offload(struct lan78xx_net *dev, | |
2981 | struct sk_buff *skb, | |
2982 | u32 rx_cmd_a, u32 rx_cmd_b) | |
2983 | { | |
2984 | if ((dev->net->features & NETIF_F_HW_VLAN_CTAG_RX) && | |
2985 | (rx_cmd_a & RX_CMD_A_FVTG_)) | |
2986 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), | |
2987 | (rx_cmd_b & 0xffff)); | |
2988 | } | |
2989 | ||
2990 | static void lan78xx_skb_return(struct lan78xx_net *dev, struct sk_buff *skb) | |
2991 | { | |
2992 | int status; | |
2993 | ||
2994 | if (test_bit(EVENT_RX_PAUSED, &dev->flags)) { | |
2995 | skb_queue_tail(&dev->rxq_pause, skb); | |
2996 | return; | |
2997 | } | |
2998 | ||
2999 | dev->net->stats.rx_packets++; | |
3000 | dev->net->stats.rx_bytes += skb->len; | |
3001 | ||
3002 | skb->protocol = eth_type_trans(skb, dev->net); | |
3003 | ||
3004 | netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n", | |
3005 | skb->len + sizeof(struct ethhdr), skb->protocol); | |
3006 | memset(skb->cb, 0, sizeof(struct skb_data)); | |
3007 | ||
3008 | if (skb_defer_rx_timestamp(skb)) | |
3009 | return; | |
3010 | ||
3011 | status = netif_rx(skb); | |
3012 | if (status != NET_RX_SUCCESS) | |
3013 | netif_dbg(dev, rx_err, dev->net, | |
3014 | "netif_rx status %d\n", status); | |
3015 | } | |
3016 | ||
3017 | static int lan78xx_rx(struct lan78xx_net *dev, struct sk_buff *skb) | |
3018 | { | |
3019 | if (skb->len < dev->net->hard_header_len) | |
3020 | return 0; | |
3021 | ||
3022 | while (skb->len > 0) { | |
3023 | u32 rx_cmd_a, rx_cmd_b, align_count, size; | |
3024 | u16 rx_cmd_c; | |
3025 | struct sk_buff *skb2; | |
3026 | unsigned char *packet; | |
3027 | ||
3028 | rx_cmd_a = get_unaligned_le32(skb->data); | |
3029 | skb_pull(skb, sizeof(rx_cmd_a)); | |
3030 | ||
3031 | rx_cmd_b = get_unaligned_le32(skb->data); | |
3032 | skb_pull(skb, sizeof(rx_cmd_b)); | |
3033 | ||
3034 | rx_cmd_c = get_unaligned_le16(skb->data); | |
3035 | skb_pull(skb, sizeof(rx_cmd_c)); | |
3036 | ||
3037 | packet = skb->data; | |
3038 | ||
3039 | /* get the packet length */ | |
3040 | size = (rx_cmd_a & RX_CMD_A_LEN_MASK_); | |
3041 | align_count = (4 - ((size + RXW_PADDING) % 4)) % 4; | |
3042 | ||
3043 | if (unlikely(rx_cmd_a & RX_CMD_A_RED_)) { | |
3044 | netif_dbg(dev, rx_err, dev->net, | |
3045 | "Error rx_cmd_a=0x%08x", rx_cmd_a); | |
3046 | } else { | |
3047 | /* last frame in this batch */ | |
3048 | if (skb->len == size) { | |
3049 | lan78xx_rx_csum_offload(dev, skb, | |
3050 | rx_cmd_a, rx_cmd_b); | |
3051 | lan78xx_rx_vlan_offload(dev, skb, | |
3052 | rx_cmd_a, rx_cmd_b); | |
3053 | ||
3054 | skb_trim(skb, skb->len - 4); /* remove fcs */ | |
3055 | skb->truesize = size + sizeof(struct sk_buff); | |
3056 | ||
3057 | return 1; | |
3058 | } | |
3059 | ||
3060 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
3061 | if (unlikely(!skb2)) { | |
3062 | netdev_warn(dev->net, "Error allocating skb"); | |
3063 | return 0; | |
3064 | } | |
3065 | ||
3066 | skb2->len = size; | |
3067 | skb2->data = packet; | |
3068 | skb_set_tail_pointer(skb2, size); | |
3069 | ||
3070 | lan78xx_rx_csum_offload(dev, skb2, rx_cmd_a, rx_cmd_b); | |
3071 | lan78xx_rx_vlan_offload(dev, skb2, rx_cmd_a, rx_cmd_b); | |
3072 | ||
3073 | skb_trim(skb2, skb2->len - 4); /* remove fcs */ | |
3074 | skb2->truesize = size + sizeof(struct sk_buff); | |
3075 | ||
3076 | lan78xx_skb_return(dev, skb2); | |
3077 | } | |
3078 | ||
3079 | skb_pull(skb, size); | |
3080 | ||
3081 | /* padding bytes before the next frame starts */ | |
3082 | if (skb->len) | |
3083 | skb_pull(skb, align_count); | |
3084 | } | |
3085 | ||
3086 | return 1; | |
3087 | } | |
3088 | ||
3089 | static inline void rx_process(struct lan78xx_net *dev, struct sk_buff *skb) | |
3090 | { | |
3091 | if (!lan78xx_rx(dev, skb)) { | |
3092 | dev->net->stats.rx_errors++; | |
3093 | goto done; | |
3094 | } | |
3095 | ||
3096 | if (skb->len) { | |
3097 | lan78xx_skb_return(dev, skb); | |
3098 | return; | |
3099 | } | |
3100 | ||
3101 | netif_dbg(dev, rx_err, dev->net, "drop\n"); | |
3102 | dev->net->stats.rx_errors++; | |
3103 | done: | |
3104 | skb_queue_tail(&dev->done, skb); | |
3105 | } | |
3106 | ||
3107 | static void rx_complete(struct urb *urb); | |
3108 | ||
3109 | static int rx_submit(struct lan78xx_net *dev, struct urb *urb, gfp_t flags) | |
3110 | { | |
3111 | struct sk_buff *skb; | |
3112 | struct skb_data *entry; | |
3113 | unsigned long lockflags; | |
3114 | size_t size = dev->rx_urb_size; | |
3115 | int ret = 0; | |
3116 | ||
3117 | skb = netdev_alloc_skb_ip_align(dev->net, size); | |
3118 | if (!skb) { | |
3119 | usb_free_urb(urb); | |
3120 | return -ENOMEM; | |
3121 | } | |
3122 | ||
3123 | entry = (struct skb_data *)skb->cb; | |
3124 | entry->urb = urb; | |
3125 | entry->dev = dev; | |
3126 | entry->length = 0; | |
3127 | ||
3128 | usb_fill_bulk_urb(urb, dev->udev, dev->pipe_in, | |
3129 | skb->data, size, rx_complete, skb); | |
3130 | ||
3131 | spin_lock_irqsave(&dev->rxq.lock, lockflags); | |
3132 | ||
3133 | if (netif_device_present(dev->net) && | |
3134 | netif_running(dev->net) && | |
3135 | !test_bit(EVENT_RX_HALT, &dev->flags) && | |
3136 | !test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { | |
3137 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
3138 | switch (ret) { | |
3139 | case 0: | |
3140 | lan78xx_queue_skb(&dev->rxq, skb, rx_start); | |
3141 | break; | |
3142 | case -EPIPE: | |
3143 | lan78xx_defer_kevent(dev, EVENT_RX_HALT); | |
3144 | break; | |
3145 | case -ENODEV: | |
3146 | netif_dbg(dev, ifdown, dev->net, "device gone\n"); | |
3147 | netif_device_detach(dev->net); | |
3148 | break; | |
3149 | case -EHOSTUNREACH: | |
3150 | ret = -ENOLINK; | |
3151 | break; | |
3152 | default: | |
3153 | netif_dbg(dev, rx_err, dev->net, | |
3154 | "rx submit, %d\n", ret); | |
3155 | tasklet_schedule(&dev->bh); | |
3156 | } | |
3157 | } else { | |
3158 | netif_dbg(dev, ifdown, dev->net, "rx: stopped\n"); | |
3159 | ret = -ENOLINK; | |
3160 | } | |
3161 | spin_unlock_irqrestore(&dev->rxq.lock, lockflags); | |
3162 | if (ret) { | |
3163 | dev_kfree_skb_any(skb); | |
3164 | usb_free_urb(urb); | |
3165 | } | |
3166 | return ret; | |
3167 | } | |
3168 | ||
3169 | static void rx_complete(struct urb *urb) | |
3170 | { | |
3171 | struct sk_buff *skb = (struct sk_buff *)urb->context; | |
3172 | struct skb_data *entry = (struct skb_data *)skb->cb; | |
3173 | struct lan78xx_net *dev = entry->dev; | |
3174 | int urb_status = urb->status; | |
3175 | enum skb_state state; | |
3176 | ||
3177 | skb_put(skb, urb->actual_length); | |
3178 | state = rx_done; | |
3179 | entry->urb = NULL; | |
3180 | ||
3181 | switch (urb_status) { | |
3182 | case 0: | |
3183 | if (skb->len < dev->net->hard_header_len) { | |
3184 | state = rx_cleanup; | |
3185 | dev->net->stats.rx_errors++; | |
3186 | dev->net->stats.rx_length_errors++; | |
3187 | netif_dbg(dev, rx_err, dev->net, | |
3188 | "rx length %d\n", skb->len); | |
3189 | } | |
3190 | usb_mark_last_busy(dev->udev); | |
3191 | break; | |
3192 | case -EPIPE: | |
3193 | dev->net->stats.rx_errors++; | |
3194 | lan78xx_defer_kevent(dev, EVENT_RX_HALT); | |
3195 | fallthrough; | |
3196 | case -ECONNRESET: /* async unlink */ | |
3197 | case -ESHUTDOWN: /* hardware gone */ | |
3198 | netif_dbg(dev, ifdown, dev->net, | |
3199 | "rx shutdown, code %d\n", urb_status); | |
3200 | state = rx_cleanup; | |
3201 | entry->urb = urb; | |
3202 | urb = NULL; | |
3203 | break; | |
3204 | case -EPROTO: | |
3205 | case -ETIME: | |
3206 | case -EILSEQ: | |
3207 | dev->net->stats.rx_errors++; | |
3208 | state = rx_cleanup; | |
3209 | entry->urb = urb; | |
3210 | urb = NULL; | |
3211 | break; | |
3212 | ||
3213 | /* data overrun ... flush fifo? */ | |
3214 | case -EOVERFLOW: | |
3215 | dev->net->stats.rx_over_errors++; | |
3216 | fallthrough; | |
3217 | ||
3218 | default: | |
3219 | state = rx_cleanup; | |
3220 | dev->net->stats.rx_errors++; | |
3221 | netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status); | |
3222 | break; | |
3223 | } | |
3224 | ||
3225 | state = defer_bh(dev, skb, &dev->rxq, state); | |
3226 | ||
3227 | if (urb) { | |
3228 | if (netif_running(dev->net) && | |
3229 | !test_bit(EVENT_RX_HALT, &dev->flags) && | |
3230 | state != unlink_start) { | |
3231 | rx_submit(dev, urb, GFP_ATOMIC); | |
3232 | return; | |
3233 | } | |
3234 | usb_free_urb(urb); | |
3235 | } | |
3236 | netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n"); | |
3237 | } | |
3238 | ||
3239 | static void lan78xx_tx_bh(struct lan78xx_net *dev) | |
3240 | { | |
3241 | int length; | |
3242 | struct urb *urb = NULL; | |
3243 | struct skb_data *entry; | |
3244 | unsigned long flags; | |
3245 | struct sk_buff_head *tqp = &dev->txq_pend; | |
3246 | struct sk_buff *skb, *skb2; | |
3247 | int ret; | |
3248 | int count, pos; | |
3249 | int skb_totallen, pkt_cnt; | |
3250 | ||
3251 | skb_totallen = 0; | |
3252 | pkt_cnt = 0; | |
3253 | count = 0; | |
3254 | length = 0; | |
3255 | spin_lock_irqsave(&tqp->lock, flags); | |
3256 | skb_queue_walk(tqp, skb) { | |
3257 | if (skb_is_gso(skb)) { | |
3258 | if (!skb_queue_is_first(tqp, skb)) { | |
3259 | /* handle previous packets first */ | |
3260 | break; | |
3261 | } | |
3262 | count = 1; | |
3263 | length = skb->len - TX_OVERHEAD; | |
3264 | __skb_unlink(skb, tqp); | |
3265 | spin_unlock_irqrestore(&tqp->lock, flags); | |
3266 | goto gso_skb; | |
3267 | } | |
3268 | ||
3269 | if ((skb_totallen + skb->len) > MAX_SINGLE_PACKET_SIZE) | |
3270 | break; | |
3271 | skb_totallen = skb->len + roundup(skb_totallen, sizeof(u32)); | |
3272 | pkt_cnt++; | |
3273 | } | |
3274 | spin_unlock_irqrestore(&tqp->lock, flags); | |
3275 | ||
3276 | /* copy to a single skb */ | |
3277 | skb = alloc_skb(skb_totallen, GFP_ATOMIC); | |
3278 | if (!skb) | |
3279 | goto drop; | |
3280 | ||
3281 | skb_put(skb, skb_totallen); | |
3282 | ||
3283 | for (count = pos = 0; count < pkt_cnt; count++) { | |
3284 | skb2 = skb_dequeue(tqp); | |
3285 | if (skb2) { | |
3286 | length += (skb2->len - TX_OVERHEAD); | |
3287 | memcpy(skb->data + pos, skb2->data, skb2->len); | |
3288 | pos += roundup(skb2->len, sizeof(u32)); | |
3289 | dev_kfree_skb(skb2); | |
3290 | } | |
3291 | } | |
3292 | ||
3293 | gso_skb: | |
3294 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
3295 | if (!urb) | |
3296 | goto drop; | |
3297 | ||
3298 | entry = (struct skb_data *)skb->cb; | |
3299 | entry->urb = urb; | |
3300 | entry->dev = dev; | |
3301 | entry->length = length; | |
3302 | entry->num_of_packet = count; | |
3303 | ||
3304 | spin_lock_irqsave(&dev->txq.lock, flags); | |
3305 | ret = usb_autopm_get_interface_async(dev->intf); | |
3306 | if (ret < 0) { | |
3307 | spin_unlock_irqrestore(&dev->txq.lock, flags); | |
3308 | goto drop; | |
3309 | } | |
3310 | ||
3311 | usb_fill_bulk_urb(urb, dev->udev, dev->pipe_out, | |
3312 | skb->data, skb->len, tx_complete, skb); | |
3313 | ||
3314 | if (length % dev->maxpacket == 0) { | |
3315 | /* send USB_ZERO_PACKET */ | |
3316 | urb->transfer_flags |= URB_ZERO_PACKET; | |
3317 | } | |
3318 | ||
3319 | #ifdef CONFIG_PM | |
3320 | /* if this triggers the device is still a sleep */ | |
3321 | if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { | |
3322 | /* transmission will be done in resume */ | |
3323 | usb_anchor_urb(urb, &dev->deferred); | |
3324 | /* no use to process more packets */ | |
3325 | netif_stop_queue(dev->net); | |
3326 | usb_put_urb(urb); | |
3327 | spin_unlock_irqrestore(&dev->txq.lock, flags); | |
3328 | netdev_dbg(dev->net, "Delaying transmission for resumption\n"); | |
3329 | return; | |
3330 | } | |
3331 | #endif | |
3332 | ||
3333 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
3334 | switch (ret) { | |
3335 | case 0: | |
3336 | netif_trans_update(dev->net); | |
3337 | lan78xx_queue_skb(&dev->txq, skb, tx_start); | |
3338 | if (skb_queue_len(&dev->txq) >= dev->tx_qlen) | |
3339 | netif_stop_queue(dev->net); | |
3340 | break; | |
3341 | case -EPIPE: | |
3342 | netif_stop_queue(dev->net); | |
3343 | lan78xx_defer_kevent(dev, EVENT_TX_HALT); | |
3344 | usb_autopm_put_interface_async(dev->intf); | |
3345 | break; | |
3346 | default: | |
3347 | usb_autopm_put_interface_async(dev->intf); | |
3348 | netif_dbg(dev, tx_err, dev->net, | |
3349 | "tx: submit urb err %d\n", ret); | |
3350 | break; | |
3351 | } | |
3352 | ||
3353 | spin_unlock_irqrestore(&dev->txq.lock, flags); | |
3354 | ||
3355 | if (ret) { | |
3356 | netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", ret); | |
3357 | drop: | |
3358 | dev->net->stats.tx_dropped++; | |
3359 | if (skb) | |
3360 | dev_kfree_skb_any(skb); | |
3361 | usb_free_urb(urb); | |
3362 | } else | |
3363 | netif_dbg(dev, tx_queued, dev->net, | |
3364 | "> tx, len %d, type 0x%x\n", length, skb->protocol); | |
3365 | } | |
3366 | ||
3367 | static void lan78xx_rx_bh(struct lan78xx_net *dev) | |
3368 | { | |
3369 | struct urb *urb; | |
3370 | int i; | |
3371 | ||
3372 | if (skb_queue_len(&dev->rxq) < dev->rx_qlen) { | |
3373 | for (i = 0; i < 10; i++) { | |
3374 | if (skb_queue_len(&dev->rxq) >= dev->rx_qlen) | |
3375 | break; | |
3376 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
3377 | if (urb) | |
3378 | if (rx_submit(dev, urb, GFP_ATOMIC) == -ENOLINK) | |
3379 | return; | |
3380 | } | |
3381 | ||
3382 | if (skb_queue_len(&dev->rxq) < dev->rx_qlen) | |
3383 | tasklet_schedule(&dev->bh); | |
3384 | } | |
3385 | if (skb_queue_len(&dev->txq) < dev->tx_qlen) | |
3386 | netif_wake_queue(dev->net); | |
3387 | } | |
3388 | ||
3389 | static void lan78xx_bh(unsigned long param) | |
3390 | { | |
3391 | struct lan78xx_net *dev = (struct lan78xx_net *)param; | |
3392 | struct sk_buff *skb; | |
3393 | struct skb_data *entry; | |
3394 | ||
3395 | while ((skb = skb_dequeue(&dev->done))) { | |
3396 | entry = (struct skb_data *)(skb->cb); | |
3397 | switch (entry->state) { | |
3398 | case rx_done: | |
3399 | entry->state = rx_cleanup; | |
3400 | rx_process(dev, skb); | |
3401 | continue; | |
3402 | case tx_done: | |
3403 | usb_free_urb(entry->urb); | |
3404 | dev_kfree_skb(skb); | |
3405 | continue; | |
3406 | case rx_cleanup: | |
3407 | usb_free_urb(entry->urb); | |
3408 | dev_kfree_skb(skb); | |
3409 | continue; | |
3410 | default: | |
3411 | netdev_dbg(dev->net, "skb state %d\n", entry->state); | |
3412 | return; | |
3413 | } | |
3414 | } | |
3415 | ||
3416 | if (netif_device_present(dev->net) && netif_running(dev->net)) { | |
3417 | /* reset update timer delta */ | |
3418 | if (timer_pending(&dev->stat_monitor) && (dev->delta != 1)) { | |
3419 | dev->delta = 1; | |
3420 | mod_timer(&dev->stat_monitor, | |
3421 | jiffies + STAT_UPDATE_TIMER); | |
3422 | } | |
3423 | ||
3424 | if (!skb_queue_empty(&dev->txq_pend)) | |
3425 | lan78xx_tx_bh(dev); | |
3426 | ||
3427 | if (!timer_pending(&dev->delay) && | |
3428 | !test_bit(EVENT_RX_HALT, &dev->flags)) | |
3429 | lan78xx_rx_bh(dev); | |
3430 | } | |
3431 | } | |
3432 | ||
3433 | static void lan78xx_delayedwork(struct work_struct *work) | |
3434 | { | |
3435 | int status; | |
3436 | struct lan78xx_net *dev; | |
3437 | ||
3438 | dev = container_of(work, struct lan78xx_net, wq.work); | |
3439 | ||
3440 | if (test_bit(EVENT_TX_HALT, &dev->flags)) { | |
3441 | unlink_urbs(dev, &dev->txq); | |
3442 | status = usb_autopm_get_interface(dev->intf); | |
3443 | if (status < 0) | |
3444 | goto fail_pipe; | |
3445 | status = usb_clear_halt(dev->udev, dev->pipe_out); | |
3446 | usb_autopm_put_interface(dev->intf); | |
3447 | if (status < 0 && | |
3448 | status != -EPIPE && | |
3449 | status != -ESHUTDOWN) { | |
3450 | if (netif_msg_tx_err(dev)) | |
3451 | fail_pipe: | |
3452 | netdev_err(dev->net, | |
3453 | "can't clear tx halt, status %d\n", | |
3454 | status); | |
3455 | } else { | |
3456 | clear_bit(EVENT_TX_HALT, &dev->flags); | |
3457 | if (status != -ESHUTDOWN) | |
3458 | netif_wake_queue(dev->net); | |
3459 | } | |
3460 | } | |
3461 | if (test_bit(EVENT_RX_HALT, &dev->flags)) { | |
3462 | unlink_urbs(dev, &dev->rxq); | |
3463 | status = usb_autopm_get_interface(dev->intf); | |
3464 | if (status < 0) | |
3465 | goto fail_halt; | |
3466 | status = usb_clear_halt(dev->udev, dev->pipe_in); | |
3467 | usb_autopm_put_interface(dev->intf); | |
3468 | if (status < 0 && | |
3469 | status != -EPIPE && | |
3470 | status != -ESHUTDOWN) { | |
3471 | if (netif_msg_rx_err(dev)) | |
3472 | fail_halt: | |
3473 | netdev_err(dev->net, | |
3474 | "can't clear rx halt, status %d\n", | |
3475 | status); | |
3476 | } else { | |
3477 | clear_bit(EVENT_RX_HALT, &dev->flags); | |
3478 | tasklet_schedule(&dev->bh); | |
3479 | } | |
3480 | } | |
3481 | ||
3482 | if (test_bit(EVENT_LINK_RESET, &dev->flags)) { | |
3483 | int ret = 0; | |
3484 | ||
3485 | clear_bit(EVENT_LINK_RESET, &dev->flags); | |
3486 | status = usb_autopm_get_interface(dev->intf); | |
3487 | if (status < 0) | |
3488 | goto skip_reset; | |
3489 | if (lan78xx_link_reset(dev) < 0) { | |
3490 | usb_autopm_put_interface(dev->intf); | |
3491 | skip_reset: | |
3492 | netdev_info(dev->net, "link reset failed (%d)\n", | |
3493 | ret); | |
3494 | } else { | |
3495 | usb_autopm_put_interface(dev->intf); | |
3496 | } | |
3497 | } | |
3498 | ||
3499 | if (test_bit(EVENT_STAT_UPDATE, &dev->flags)) { | |
3500 | lan78xx_update_stats(dev); | |
3501 | ||
3502 | clear_bit(EVENT_STAT_UPDATE, &dev->flags); | |
3503 | ||
3504 | mod_timer(&dev->stat_monitor, | |
3505 | jiffies + (STAT_UPDATE_TIMER * dev->delta)); | |
3506 | ||
3507 | dev->delta = min((dev->delta * 2), 50); | |
3508 | } | |
3509 | } | |
3510 | ||
3511 | static void intr_complete(struct urb *urb) | |
3512 | { | |
3513 | struct lan78xx_net *dev = urb->context; | |
3514 | int status = urb->status; | |
3515 | ||
3516 | switch (status) { | |
3517 | /* success */ | |
3518 | case 0: | |
3519 | lan78xx_status(dev, urb); | |
3520 | break; | |
3521 | ||
3522 | /* software-driven interface shutdown */ | |
3523 | case -ENOENT: /* urb killed */ | |
3524 | case -ESHUTDOWN: /* hardware gone */ | |
3525 | netif_dbg(dev, ifdown, dev->net, | |
3526 | "intr shutdown, code %d\n", status); | |
3527 | return; | |
3528 | ||
3529 | /* NOTE: not throttling like RX/TX, since this endpoint | |
3530 | * already polls infrequently | |
3531 | */ | |
3532 | default: | |
3533 | netdev_dbg(dev->net, "intr status %d\n", status); | |
3534 | break; | |
3535 | } | |
3536 | ||
3537 | if (!netif_running(dev->net)) | |
3538 | return; | |
3539 | ||
3540 | memset(urb->transfer_buffer, 0, urb->transfer_buffer_length); | |
3541 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
3542 | if (status != 0) | |
3543 | netif_err(dev, timer, dev->net, | |
3544 | "intr resubmit --> %d\n", status); | |
3545 | } | |
3546 | ||
3547 | static void lan78xx_disconnect(struct usb_interface *intf) | |
3548 | { | |
3549 | struct lan78xx_net *dev; | |
3550 | struct usb_device *udev; | |
3551 | struct net_device *net; | |
3552 | struct phy_device *phydev; | |
3553 | ||
3554 | dev = usb_get_intfdata(intf); | |
3555 | usb_set_intfdata(intf, NULL); | |
3556 | if (!dev) | |
3557 | return; | |
3558 | ||
3559 | udev = interface_to_usbdev(intf); | |
3560 | net = dev->net; | |
3561 | phydev = net->phydev; | |
3562 | ||
3563 | phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0); | |
3564 | phy_unregister_fixup_for_uid(PHY_LAN8835, 0xfffffff0); | |
3565 | ||
3566 | phy_disconnect(net->phydev); | |
3567 | ||
3568 | if (phy_is_pseudo_fixed_link(phydev)) | |
3569 | fixed_phy_unregister(phydev); | |
3570 | ||
3571 | unregister_netdev(net); | |
3572 | ||
3573 | cancel_delayed_work_sync(&dev->wq); | |
3574 | ||
3575 | usb_scuttle_anchored_urbs(&dev->deferred); | |
3576 | ||
3577 | lan78xx_unbind(dev, intf); | |
3578 | ||
3579 | usb_kill_urb(dev->urb_intr); | |
3580 | usb_free_urb(dev->urb_intr); | |
3581 | ||
3582 | free_netdev(net); | |
3583 | usb_put_dev(udev); | |
3584 | } | |
3585 | ||
3586 | static void lan78xx_tx_timeout(struct net_device *net, unsigned int txqueue) | |
3587 | { | |
3588 | struct lan78xx_net *dev = netdev_priv(net); | |
3589 | ||
3590 | unlink_urbs(dev, &dev->txq); | |
3591 | tasklet_schedule(&dev->bh); | |
3592 | } | |
3593 | ||
3594 | static netdev_features_t lan78xx_features_check(struct sk_buff *skb, | |
3595 | struct net_device *netdev, | |
3596 | netdev_features_t features) | |
3597 | { | |
3598 | if (skb->len + TX_OVERHEAD > MAX_SINGLE_PACKET_SIZE) | |
3599 | features &= ~NETIF_F_GSO_MASK; | |
3600 | ||
3601 | features = vlan_features_check(skb, features); | |
3602 | features = vxlan_features_check(skb, features); | |
3603 | ||
3604 | return features; | |
3605 | } | |
3606 | ||
3607 | static const struct net_device_ops lan78xx_netdev_ops = { | |
3608 | .ndo_open = lan78xx_open, | |
3609 | .ndo_stop = lan78xx_stop, | |
3610 | .ndo_start_xmit = lan78xx_start_xmit, | |
3611 | .ndo_tx_timeout = lan78xx_tx_timeout, | |
3612 | .ndo_change_mtu = lan78xx_change_mtu, | |
3613 | .ndo_set_mac_address = lan78xx_set_mac_addr, | |
3614 | .ndo_validate_addr = eth_validate_addr, | |
3615 | .ndo_do_ioctl = phy_do_ioctl_running, | |
3616 | .ndo_set_rx_mode = lan78xx_set_multicast, | |
3617 | .ndo_set_features = lan78xx_set_features, | |
3618 | .ndo_vlan_rx_add_vid = lan78xx_vlan_rx_add_vid, | |
3619 | .ndo_vlan_rx_kill_vid = lan78xx_vlan_rx_kill_vid, | |
3620 | .ndo_features_check = lan78xx_features_check, | |
3621 | }; | |
3622 | ||
3623 | static void lan78xx_stat_monitor(struct timer_list *t) | |
3624 | { | |
3625 | struct lan78xx_net *dev = from_timer(dev, t, stat_monitor); | |
3626 | ||
3627 | lan78xx_defer_kevent(dev, EVENT_STAT_UPDATE); | |
3628 | } | |
3629 | ||
3630 | static int lan78xx_probe(struct usb_interface *intf, | |
3631 | const struct usb_device_id *id) | |
3632 | { | |
3633 | struct usb_host_endpoint *ep_blkin, *ep_blkout, *ep_intr; | |
3634 | struct lan78xx_net *dev; | |
3635 | struct net_device *netdev; | |
3636 | struct usb_device *udev; | |
3637 | int ret; | |
3638 | unsigned maxp; | |
3639 | unsigned period; | |
3640 | u8 *buf = NULL; | |
3641 | ||
3642 | udev = interface_to_usbdev(intf); | |
3643 | udev = usb_get_dev(udev); | |
3644 | ||
3645 | netdev = alloc_etherdev(sizeof(struct lan78xx_net)); | |
3646 | if (!netdev) { | |
3647 | dev_err(&intf->dev, "Error: OOM\n"); | |
3648 | ret = -ENOMEM; | |
3649 | goto out1; | |
3650 | } | |
3651 | ||
3652 | /* netdev_printk() needs this */ | |
3653 | SET_NETDEV_DEV(netdev, &intf->dev); | |
3654 | ||
3655 | dev = netdev_priv(netdev); | |
3656 | dev->udev = udev; | |
3657 | dev->intf = intf; | |
3658 | dev->net = netdev; | |
3659 | dev->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV | |
3660 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); | |
3661 | ||
3662 | skb_queue_head_init(&dev->rxq); | |
3663 | skb_queue_head_init(&dev->txq); | |
3664 | skb_queue_head_init(&dev->done); | |
3665 | skb_queue_head_init(&dev->rxq_pause); | |
3666 | skb_queue_head_init(&dev->txq_pend); | |
3667 | mutex_init(&dev->phy_mutex); | |
3668 | ||
3669 | tasklet_init(&dev->bh, lan78xx_bh, (unsigned long)dev); | |
3670 | INIT_DELAYED_WORK(&dev->wq, lan78xx_delayedwork); | |
3671 | init_usb_anchor(&dev->deferred); | |
3672 | ||
3673 | netdev->netdev_ops = &lan78xx_netdev_ops; | |
3674 | netdev->watchdog_timeo = TX_TIMEOUT_JIFFIES; | |
3675 | netdev->ethtool_ops = &lan78xx_ethtool_ops; | |
3676 | ||
3677 | dev->delta = 1; | |
3678 | timer_setup(&dev->stat_monitor, lan78xx_stat_monitor, 0); | |
3679 | ||
3680 | mutex_init(&dev->stats.access_lock); | |
3681 | ||
3682 | if (intf->cur_altsetting->desc.bNumEndpoints < 3) { | |
3683 | ret = -ENODEV; | |
3684 | goto out2; | |
3685 | } | |
3686 | ||
3687 | dev->pipe_in = usb_rcvbulkpipe(udev, BULK_IN_PIPE); | |
3688 | ep_blkin = usb_pipe_endpoint(udev, dev->pipe_in); | |
3689 | if (!ep_blkin || !usb_endpoint_is_bulk_in(&ep_blkin->desc)) { | |
3690 | ret = -ENODEV; | |
3691 | goto out2; | |
3692 | } | |
3693 | ||
3694 | dev->pipe_out = usb_sndbulkpipe(udev, BULK_OUT_PIPE); | |
3695 | ep_blkout = usb_pipe_endpoint(udev, dev->pipe_out); | |
3696 | if (!ep_blkout || !usb_endpoint_is_bulk_out(&ep_blkout->desc)) { | |
3697 | ret = -ENODEV; | |
3698 | goto out2; | |
3699 | } | |
3700 | ||
3701 | ep_intr = &intf->cur_altsetting->endpoint[2]; | |
3702 | if (!usb_endpoint_is_int_in(&ep_intr->desc)) { | |
3703 | ret = -ENODEV; | |
3704 | goto out2; | |
3705 | } | |
3706 | ||
3707 | dev->pipe_intr = usb_rcvintpipe(dev->udev, | |
3708 | usb_endpoint_num(&ep_intr->desc)); | |
3709 | ||
3710 | ret = lan78xx_bind(dev, intf); | |
3711 | if (ret < 0) | |
3712 | goto out2; | |
3713 | ||
3714 | if (netdev->mtu > (dev->hard_mtu - netdev->hard_header_len)) | |
3715 | netdev->mtu = dev->hard_mtu - netdev->hard_header_len; | |
3716 | ||
3717 | /* MTU range: 68 - 9000 */ | |
3718 | netdev->max_mtu = MAX_SINGLE_PACKET_SIZE; | |
3719 | netif_set_gso_max_size(netdev, MAX_SINGLE_PACKET_SIZE - MAX_HEADER); | |
3720 | ||
3721 | period = ep_intr->desc.bInterval; | |
3722 | maxp = usb_maxpacket(dev->udev, dev->pipe_intr, 0); | |
3723 | buf = kmalloc(maxp, GFP_KERNEL); | |
3724 | if (buf) { | |
3725 | dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL); | |
3726 | if (!dev->urb_intr) { | |
3727 | ret = -ENOMEM; | |
3728 | kfree(buf); | |
3729 | goto out3; | |
3730 | } else { | |
3731 | usb_fill_int_urb(dev->urb_intr, dev->udev, | |
3732 | dev->pipe_intr, buf, maxp, | |
3733 | intr_complete, dev, period); | |
3734 | dev->urb_intr->transfer_flags |= URB_FREE_BUFFER; | |
3735 | } | |
3736 | } | |
3737 | ||
3738 | dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out, 1); | |
3739 | ||
3740 | /* driver requires remote-wakeup capability during autosuspend. */ | |
3741 | intf->needs_remote_wakeup = 1; | |
3742 | ||
3743 | ret = lan78xx_phy_init(dev); | |
3744 | if (ret < 0) | |
3745 | goto out4; | |
3746 | ||
3747 | ret = register_netdev(netdev); | |
3748 | if (ret != 0) { | |
3749 | netif_err(dev, probe, netdev, "couldn't register the device\n"); | |
3750 | goto out5; | |
3751 | } | |
3752 | ||
3753 | usb_set_intfdata(intf, dev); | |
3754 | ||
3755 | ret = device_set_wakeup_enable(&udev->dev, true); | |
3756 | ||
3757 | /* Default delay of 2sec has more overhead than advantage. | |
3758 | * Set to 10sec as default. | |
3759 | */ | |
3760 | pm_runtime_set_autosuspend_delay(&udev->dev, | |
3761 | DEFAULT_AUTOSUSPEND_DELAY); | |
3762 | ||
3763 | return 0; | |
3764 | ||
3765 | out5: | |
3766 | phy_disconnect(netdev->phydev); | |
3767 | out4: | |
3768 | usb_free_urb(dev->urb_intr); | |
3769 | out3: | |
3770 | lan78xx_unbind(dev, intf); | |
3771 | out2: | |
3772 | free_netdev(netdev); | |
3773 | out1: | |
3774 | usb_put_dev(udev); | |
3775 | ||
3776 | return ret; | |
3777 | } | |
3778 | ||
3779 | static u16 lan78xx_wakeframe_crc16(const u8 *buf, int len) | |
3780 | { | |
3781 | const u16 crc16poly = 0x8005; | |
3782 | int i; | |
3783 | u16 bit, crc, msb; | |
3784 | u8 data; | |
3785 | ||
3786 | crc = 0xFFFF; | |
3787 | for (i = 0; i < len; i++) { | |
3788 | data = *buf++; | |
3789 | for (bit = 0; bit < 8; bit++) { | |
3790 | msb = crc >> 15; | |
3791 | crc <<= 1; | |
3792 | ||
3793 | if (msb ^ (u16)(data & 1)) { | |
3794 | crc ^= crc16poly; | |
3795 | crc |= (u16)0x0001U; | |
3796 | } | |
3797 | data >>= 1; | |
3798 | } | |
3799 | } | |
3800 | ||
3801 | return crc; | |
3802 | } | |
3803 | ||
3804 | static int lan78xx_set_suspend(struct lan78xx_net *dev, u32 wol) | |
3805 | { | |
3806 | u32 buf; | |
3807 | int ret; | |
3808 | int mask_index; | |
3809 | u16 crc; | |
3810 | u32 temp_wucsr; | |
3811 | u32 temp_pmt_ctl; | |
3812 | const u8 ipv4_multicast[3] = { 0x01, 0x00, 0x5E }; | |
3813 | const u8 ipv6_multicast[3] = { 0x33, 0x33 }; | |
3814 | const u8 arp_type[2] = { 0x08, 0x06 }; | |
3815 | ||
3816 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
3817 | buf &= ~MAC_TX_TXEN_; | |
3818 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
3819 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3820 | buf &= ~MAC_RX_RXEN_; | |
3821 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3822 | ||
3823 | ret = lan78xx_write_reg(dev, WUCSR, 0); | |
3824 | ret = lan78xx_write_reg(dev, WUCSR2, 0); | |
3825 | ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); | |
3826 | ||
3827 | temp_wucsr = 0; | |
3828 | ||
3829 | temp_pmt_ctl = 0; | |
3830 | ret = lan78xx_read_reg(dev, PMT_CTL, &temp_pmt_ctl); | |
3831 | temp_pmt_ctl &= ~PMT_CTL_RES_CLR_WKP_EN_; | |
3832 | temp_pmt_ctl |= PMT_CTL_RES_CLR_WKP_STS_; | |
3833 | ||
3834 | for (mask_index = 0; mask_index < NUM_OF_WUF_CFG; mask_index++) | |
3835 | ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), 0); | |
3836 | ||
3837 | mask_index = 0; | |
3838 | if (wol & WAKE_PHY) { | |
3839 | temp_pmt_ctl |= PMT_CTL_PHY_WAKE_EN_; | |
3840 | ||
3841 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3842 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3843 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3844 | } | |
3845 | if (wol & WAKE_MAGIC) { | |
3846 | temp_wucsr |= WUCSR_MPEN_; | |
3847 | ||
3848 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3849 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3850 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_3_; | |
3851 | } | |
3852 | if (wol & WAKE_BCAST) { | |
3853 | temp_wucsr |= WUCSR_BCST_EN_; | |
3854 | ||
3855 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3856 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3857 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3858 | } | |
3859 | if (wol & WAKE_MCAST) { | |
3860 | temp_wucsr |= WUCSR_WAKE_EN_; | |
3861 | ||
3862 | /* set WUF_CFG & WUF_MASK for IPv4 Multicast */ | |
3863 | crc = lan78xx_wakeframe_crc16(ipv4_multicast, 3); | |
3864 | ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), | |
3865 | WUF_CFGX_EN_ | | |
3866 | WUF_CFGX_TYPE_MCAST_ | | |
3867 | (0 << WUF_CFGX_OFFSET_SHIFT_) | | |
3868 | (crc & WUF_CFGX_CRC16_MASK_)); | |
3869 | ||
3870 | ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 7); | |
3871 | ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); | |
3872 | ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); | |
3873 | ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); | |
3874 | mask_index++; | |
3875 | ||
3876 | /* for IPv6 Multicast */ | |
3877 | crc = lan78xx_wakeframe_crc16(ipv6_multicast, 2); | |
3878 | ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), | |
3879 | WUF_CFGX_EN_ | | |
3880 | WUF_CFGX_TYPE_MCAST_ | | |
3881 | (0 << WUF_CFGX_OFFSET_SHIFT_) | | |
3882 | (crc & WUF_CFGX_CRC16_MASK_)); | |
3883 | ||
3884 | ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 3); | |
3885 | ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); | |
3886 | ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); | |
3887 | ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); | |
3888 | mask_index++; | |
3889 | ||
3890 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3891 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3892 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3893 | } | |
3894 | if (wol & WAKE_UCAST) { | |
3895 | temp_wucsr |= WUCSR_PFDA_EN_; | |
3896 | ||
3897 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3898 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3899 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3900 | } | |
3901 | if (wol & WAKE_ARP) { | |
3902 | temp_wucsr |= WUCSR_WAKE_EN_; | |
3903 | ||
3904 | /* set WUF_CFG & WUF_MASK | |
3905 | * for packettype (offset 12,13) = ARP (0x0806) | |
3906 | */ | |
3907 | crc = lan78xx_wakeframe_crc16(arp_type, 2); | |
3908 | ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), | |
3909 | WUF_CFGX_EN_ | | |
3910 | WUF_CFGX_TYPE_ALL_ | | |
3911 | (0 << WUF_CFGX_OFFSET_SHIFT_) | | |
3912 | (crc & WUF_CFGX_CRC16_MASK_)); | |
3913 | ||
3914 | ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 0x3000); | |
3915 | ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); | |
3916 | ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); | |
3917 | ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); | |
3918 | mask_index++; | |
3919 | ||
3920 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3921 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3922 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3923 | } | |
3924 | ||
3925 | ret = lan78xx_write_reg(dev, WUCSR, temp_wucsr); | |
3926 | ||
3927 | /* when multiple WOL bits are set */ | |
3928 | if (hweight_long((unsigned long)wol) > 1) { | |
3929 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3930 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3931 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3932 | } | |
3933 | ret = lan78xx_write_reg(dev, PMT_CTL, temp_pmt_ctl); | |
3934 | ||
3935 | /* clear WUPS */ | |
3936 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
3937 | buf |= PMT_CTL_WUPS_MASK_; | |
3938 | ret = lan78xx_write_reg(dev, PMT_CTL, buf); | |
3939 | ||
3940 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3941 | buf |= MAC_RX_RXEN_; | |
3942 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3943 | ||
3944 | return 0; | |
3945 | } | |
3946 | ||
3947 | static int lan78xx_suspend(struct usb_interface *intf, pm_message_t message) | |
3948 | { | |
3949 | struct lan78xx_net *dev = usb_get_intfdata(intf); | |
3950 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
3951 | u32 buf; | |
3952 | int ret; | |
3953 | ||
3954 | if (!dev->suspend_count++) { | |
3955 | spin_lock_irq(&dev->txq.lock); | |
3956 | /* don't autosuspend while transmitting */ | |
3957 | if ((skb_queue_len(&dev->txq) || | |
3958 | skb_queue_len(&dev->txq_pend)) && | |
3959 | PMSG_IS_AUTO(message)) { | |
3960 | spin_unlock_irq(&dev->txq.lock); | |
3961 | ret = -EBUSY; | |
3962 | goto out; | |
3963 | } else { | |
3964 | set_bit(EVENT_DEV_ASLEEP, &dev->flags); | |
3965 | spin_unlock_irq(&dev->txq.lock); | |
3966 | } | |
3967 | ||
3968 | /* stop TX & RX */ | |
3969 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
3970 | buf &= ~MAC_TX_TXEN_; | |
3971 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
3972 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3973 | buf &= ~MAC_RX_RXEN_; | |
3974 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3975 | ||
3976 | /* empty out the rx and queues */ | |
3977 | netif_device_detach(dev->net); | |
3978 | lan78xx_terminate_urbs(dev); | |
3979 | usb_kill_urb(dev->urb_intr); | |
3980 | ||
3981 | /* reattach */ | |
3982 | netif_device_attach(dev->net); | |
3983 | } | |
3984 | ||
3985 | if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { | |
3986 | del_timer(&dev->stat_monitor); | |
3987 | ||
3988 | if (PMSG_IS_AUTO(message)) { | |
3989 | /* auto suspend (selective suspend) */ | |
3990 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
3991 | buf &= ~MAC_TX_TXEN_; | |
3992 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
3993 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3994 | buf &= ~MAC_RX_RXEN_; | |
3995 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3996 | ||
3997 | ret = lan78xx_write_reg(dev, WUCSR, 0); | |
3998 | ret = lan78xx_write_reg(dev, WUCSR2, 0); | |
3999 | ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); | |
4000 | ||
4001 | /* set goodframe wakeup */ | |
4002 | ret = lan78xx_read_reg(dev, WUCSR, &buf); | |
4003 | ||
4004 | buf |= WUCSR_RFE_WAKE_EN_; | |
4005 | buf |= WUCSR_STORE_WAKE_; | |
4006 | ||
4007 | ret = lan78xx_write_reg(dev, WUCSR, buf); | |
4008 | ||
4009 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
4010 | ||
4011 | buf &= ~PMT_CTL_RES_CLR_WKP_EN_; | |
4012 | buf |= PMT_CTL_RES_CLR_WKP_STS_; | |
4013 | ||
4014 | buf |= PMT_CTL_PHY_WAKE_EN_; | |
4015 | buf |= PMT_CTL_WOL_EN_; | |
4016 | buf &= ~PMT_CTL_SUS_MODE_MASK_; | |
4017 | buf |= PMT_CTL_SUS_MODE_3_; | |
4018 | ||
4019 | ret = lan78xx_write_reg(dev, PMT_CTL, buf); | |
4020 | ||
4021 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
4022 | ||
4023 | buf |= PMT_CTL_WUPS_MASK_; | |
4024 | ||
4025 | ret = lan78xx_write_reg(dev, PMT_CTL, buf); | |
4026 | ||
4027 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
4028 | buf |= MAC_RX_RXEN_; | |
4029 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
4030 | } else { | |
4031 | lan78xx_set_suspend(dev, pdata->wol); | |
4032 | } | |
4033 | } | |
4034 | ||
4035 | ret = 0; | |
4036 | out: | |
4037 | return ret; | |
4038 | } | |
4039 | ||
4040 | static int lan78xx_resume(struct usb_interface *intf) | |
4041 | { | |
4042 | struct lan78xx_net *dev = usb_get_intfdata(intf); | |
4043 | struct sk_buff *skb; | |
4044 | struct urb *res; | |
4045 | int ret; | |
4046 | u32 buf; | |
4047 | ||
4048 | if (!timer_pending(&dev->stat_monitor)) { | |
4049 | dev->delta = 1; | |
4050 | mod_timer(&dev->stat_monitor, | |
4051 | jiffies + STAT_UPDATE_TIMER); | |
4052 | } | |
4053 | ||
4054 | if (!--dev->suspend_count) { | |
4055 | /* resume interrupt URBs */ | |
4056 | if (dev->urb_intr && test_bit(EVENT_DEV_OPEN, &dev->flags)) | |
4057 | usb_submit_urb(dev->urb_intr, GFP_NOIO); | |
4058 | ||
4059 | spin_lock_irq(&dev->txq.lock); | |
4060 | while ((res = usb_get_from_anchor(&dev->deferred))) { | |
4061 | skb = (struct sk_buff *)res->context; | |
4062 | ret = usb_submit_urb(res, GFP_ATOMIC); | |
4063 | if (ret < 0) { | |
4064 | dev_kfree_skb_any(skb); | |
4065 | usb_free_urb(res); | |
4066 | usb_autopm_put_interface_async(dev->intf); | |
4067 | } else { | |
4068 | netif_trans_update(dev->net); | |
4069 | lan78xx_queue_skb(&dev->txq, skb, tx_start); | |
4070 | } | |
4071 | } | |
4072 | ||
4073 | clear_bit(EVENT_DEV_ASLEEP, &dev->flags); | |
4074 | spin_unlock_irq(&dev->txq.lock); | |
4075 | ||
4076 | if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { | |
4077 | if (!(skb_queue_len(&dev->txq) >= dev->tx_qlen)) | |
4078 | netif_start_queue(dev->net); | |
4079 | tasklet_schedule(&dev->bh); | |
4080 | } | |
4081 | } | |
4082 | ||
4083 | ret = lan78xx_write_reg(dev, WUCSR2, 0); | |
4084 | ret = lan78xx_write_reg(dev, WUCSR, 0); | |
4085 | ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); | |
4086 | ||
4087 | ret = lan78xx_write_reg(dev, WUCSR2, WUCSR2_NS_RCD_ | | |
4088 | WUCSR2_ARP_RCD_ | | |
4089 | WUCSR2_IPV6_TCPSYN_RCD_ | | |
4090 | WUCSR2_IPV4_TCPSYN_RCD_); | |
4091 | ||
4092 | ret = lan78xx_write_reg(dev, WUCSR, WUCSR_EEE_TX_WAKE_ | | |
4093 | WUCSR_EEE_RX_WAKE_ | | |
4094 | WUCSR_PFDA_FR_ | | |
4095 | WUCSR_RFE_WAKE_FR_ | | |
4096 | WUCSR_WUFR_ | | |
4097 | WUCSR_MPR_ | | |
4098 | WUCSR_BCST_FR_); | |
4099 | ||
4100 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
4101 | buf |= MAC_TX_TXEN_; | |
4102 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
4103 | ||
4104 | return 0; | |
4105 | } | |
4106 | ||
4107 | static int lan78xx_reset_resume(struct usb_interface *intf) | |
4108 | { | |
4109 | struct lan78xx_net *dev = usb_get_intfdata(intf); | |
4110 | ||
4111 | lan78xx_reset(dev); | |
4112 | ||
4113 | phy_start(dev->net->phydev); | |
4114 | ||
4115 | return lan78xx_resume(intf); | |
4116 | } | |
4117 | ||
4118 | static const struct usb_device_id products[] = { | |
4119 | { | |
4120 | /* LAN7800 USB Gigabit Ethernet Device */ | |
4121 | USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7800_USB_PRODUCT_ID), | |
4122 | }, | |
4123 | { | |
4124 | /* LAN7850 USB Gigabit Ethernet Device */ | |
4125 | USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7850_USB_PRODUCT_ID), | |
4126 | }, | |
4127 | { | |
4128 | /* LAN7801 USB Gigabit Ethernet Device */ | |
4129 | USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7801_USB_PRODUCT_ID), | |
4130 | }, | |
4131 | {}, | |
4132 | }; | |
4133 | MODULE_DEVICE_TABLE(usb, products); | |
4134 | ||
4135 | static struct usb_driver lan78xx_driver = { | |
4136 | .name = DRIVER_NAME, | |
4137 | .id_table = products, | |
4138 | .probe = lan78xx_probe, | |
4139 | .disconnect = lan78xx_disconnect, | |
4140 | .suspend = lan78xx_suspend, | |
4141 | .resume = lan78xx_resume, | |
4142 | .reset_resume = lan78xx_reset_resume, | |
4143 | .supports_autosuspend = 1, | |
4144 | .disable_hub_initiated_lpm = 1, | |
4145 | }; | |
4146 | ||
4147 | module_usb_driver(lan78xx_driver); | |
4148 | ||
4149 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
4150 | MODULE_DESCRIPTION(DRIVER_DESC); | |
4151 | MODULE_LICENSE("GPL"); |