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55d7de9d WH |
1 | /* |
2 | * Copyright (C) 2015 Microchip Technology | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version 2 | |
7 | * of the License, or (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | #include <linux/version.h> | |
18 | #include <linux/module.h> | |
19 | #include <linux/netdevice.h> | |
20 | #include <linux/etherdevice.h> | |
21 | #include <linux/ethtool.h> | |
55d7de9d WH |
22 | #include <linux/usb.h> |
23 | #include <linux/crc32.h> | |
24 | #include <linux/signal.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/if_vlan.h> | |
27 | #include <linux/uaccess.h> | |
28 | #include <linux/list.h> | |
29 | #include <linux/ip.h> | |
30 | #include <linux/ipv6.h> | |
31 | #include <linux/mdio.h> | |
c6e970a0 | 32 | #include <linux/phy.h> |
55d7de9d | 33 | #include <net/ip6_checksum.h> |
d6502fc2 | 34 | #include <net/vxlan.h> |
cc89c323 WH |
35 | #include <linux/interrupt.h> |
36 | #include <linux/irqdomain.h> | |
37 | #include <linux/irq.h> | |
38 | #include <linux/irqchip/chained_irq.h> | |
bdfba55e | 39 | #include <linux/microchipphy.h> |
8c56ea41 | 40 | #include <linux/phy.h> |
a4977f3e | 41 | #include <linux/of_net.h> |
55d7de9d WH |
42 | #include "lan78xx.h" |
43 | ||
44 | #define DRIVER_AUTHOR "WOOJUNG HUH <woojung.huh@microchip.com>" | |
45 | #define DRIVER_DESC "LAN78XX USB 3.0 Gigabit Ethernet Devices" | |
46 | #define DRIVER_NAME "lan78xx" | |
02dc1f3d | 47 | #define DRIVER_VERSION "1.0.6" |
55d7de9d WH |
48 | |
49 | #define TX_TIMEOUT_JIFFIES (5 * HZ) | |
50 | #define THROTTLE_JIFFIES (HZ / 8) | |
51 | #define UNLINK_TIMEOUT_MS 3 | |
52 | ||
53 | #define RX_MAX_QUEUE_MEMORY (60 * 1518) | |
54 | ||
55 | #define SS_USB_PKT_SIZE (1024) | |
56 | #define HS_USB_PKT_SIZE (512) | |
57 | #define FS_USB_PKT_SIZE (64) | |
58 | ||
59 | #define MAX_RX_FIFO_SIZE (12 * 1024) | |
60 | #define MAX_TX_FIFO_SIZE (12 * 1024) | |
61 | #define DEFAULT_BURST_CAP_SIZE (MAX_TX_FIFO_SIZE) | |
62 | #define DEFAULT_BULK_IN_DELAY (0x0800) | |
63 | #define MAX_SINGLE_PACKET_SIZE (9000) | |
64 | #define DEFAULT_TX_CSUM_ENABLE (true) | |
65 | #define DEFAULT_RX_CSUM_ENABLE (true) | |
66 | #define DEFAULT_TSO_CSUM_ENABLE (true) | |
67 | #define DEFAULT_VLAN_FILTER_ENABLE (true) | |
55d7de9d WH |
68 | #define TX_OVERHEAD (8) |
69 | #define RXW_PADDING 2 | |
70 | ||
71 | #define LAN78XX_USB_VENDOR_ID (0x0424) | |
72 | #define LAN7800_USB_PRODUCT_ID (0x7800) | |
73 | #define LAN7850_USB_PRODUCT_ID (0x7850) | |
02dc1f3d | 74 | #define LAN7801_USB_PRODUCT_ID (0x7801) |
55d7de9d WH |
75 | #define LAN78XX_EEPROM_MAGIC (0x78A5) |
76 | #define LAN78XX_OTP_MAGIC (0x78F3) | |
77 | ||
78 | #define MII_READ 1 | |
79 | #define MII_WRITE 0 | |
80 | ||
81 | #define EEPROM_INDICATOR (0xA5) | |
82 | #define EEPROM_MAC_OFFSET (0x01) | |
83 | #define MAX_EEPROM_SIZE 512 | |
84 | #define OTP_INDICATOR_1 (0xF3) | |
85 | #define OTP_INDICATOR_2 (0xF7) | |
86 | ||
87 | #define WAKE_ALL (WAKE_PHY | WAKE_UCAST | \ | |
88 | WAKE_MCAST | WAKE_BCAST | \ | |
89 | WAKE_ARP | WAKE_MAGIC) | |
90 | ||
91 | /* USB related defines */ | |
92 | #define BULK_IN_PIPE 1 | |
93 | #define BULK_OUT_PIPE 2 | |
94 | ||
95 | /* default autosuspend delay (mSec)*/ | |
96 | #define DEFAULT_AUTOSUSPEND_DELAY (10 * 1000) | |
97 | ||
20ff5565 WH |
98 | /* statistic update interval (mSec) */ |
99 | #define STAT_UPDATE_TIMER (1 * 1000) | |
100 | ||
cc89c323 WH |
101 | /* defines interrupts from interrupt EP */ |
102 | #define MAX_INT_EP (32) | |
103 | #define INT_EP_INTEP (31) | |
104 | #define INT_EP_OTP_WR_DONE (28) | |
105 | #define INT_EP_EEE_TX_LPI_START (26) | |
106 | #define INT_EP_EEE_TX_LPI_STOP (25) | |
107 | #define INT_EP_EEE_RX_LPI (24) | |
108 | #define INT_EP_MAC_RESET_TIMEOUT (23) | |
109 | #define INT_EP_RDFO (22) | |
110 | #define INT_EP_TXE (21) | |
111 | #define INT_EP_USB_STATUS (20) | |
112 | #define INT_EP_TX_DIS (19) | |
113 | #define INT_EP_RX_DIS (18) | |
114 | #define INT_EP_PHY (17) | |
115 | #define INT_EP_DP (16) | |
116 | #define INT_EP_MAC_ERR (15) | |
117 | #define INT_EP_TDFU (14) | |
118 | #define INT_EP_TDFO (13) | |
119 | #define INT_EP_UTX (12) | |
120 | #define INT_EP_GPIO_11 (11) | |
121 | #define INT_EP_GPIO_10 (10) | |
122 | #define INT_EP_GPIO_9 (9) | |
123 | #define INT_EP_GPIO_8 (8) | |
124 | #define INT_EP_GPIO_7 (7) | |
125 | #define INT_EP_GPIO_6 (6) | |
126 | #define INT_EP_GPIO_5 (5) | |
127 | #define INT_EP_GPIO_4 (4) | |
128 | #define INT_EP_GPIO_3 (3) | |
129 | #define INT_EP_GPIO_2 (2) | |
130 | #define INT_EP_GPIO_1 (1) | |
131 | #define INT_EP_GPIO_0 (0) | |
132 | ||
55d7de9d WH |
133 | static const char lan78xx_gstrings[][ETH_GSTRING_LEN] = { |
134 | "RX FCS Errors", | |
135 | "RX Alignment Errors", | |
136 | "Rx Fragment Errors", | |
137 | "RX Jabber Errors", | |
138 | "RX Undersize Frame Errors", | |
139 | "RX Oversize Frame Errors", | |
140 | "RX Dropped Frames", | |
141 | "RX Unicast Byte Count", | |
142 | "RX Broadcast Byte Count", | |
143 | "RX Multicast Byte Count", | |
144 | "RX Unicast Frames", | |
145 | "RX Broadcast Frames", | |
146 | "RX Multicast Frames", | |
147 | "RX Pause Frames", | |
148 | "RX 64 Byte Frames", | |
149 | "RX 65 - 127 Byte Frames", | |
150 | "RX 128 - 255 Byte Frames", | |
151 | "RX 256 - 511 Bytes Frames", | |
152 | "RX 512 - 1023 Byte Frames", | |
153 | "RX 1024 - 1518 Byte Frames", | |
154 | "RX Greater 1518 Byte Frames", | |
155 | "EEE RX LPI Transitions", | |
156 | "EEE RX LPI Time", | |
157 | "TX FCS Errors", | |
158 | "TX Excess Deferral Errors", | |
159 | "TX Carrier Errors", | |
160 | "TX Bad Byte Count", | |
161 | "TX Single Collisions", | |
162 | "TX Multiple Collisions", | |
163 | "TX Excessive Collision", | |
164 | "TX Late Collisions", | |
165 | "TX Unicast Byte Count", | |
166 | "TX Broadcast Byte Count", | |
167 | "TX Multicast Byte Count", | |
168 | "TX Unicast Frames", | |
169 | "TX Broadcast Frames", | |
170 | "TX Multicast Frames", | |
171 | "TX Pause Frames", | |
172 | "TX 64 Byte Frames", | |
173 | "TX 65 - 127 Byte Frames", | |
174 | "TX 128 - 255 Byte Frames", | |
175 | "TX 256 - 511 Bytes Frames", | |
176 | "TX 512 - 1023 Byte Frames", | |
177 | "TX 1024 - 1518 Byte Frames", | |
178 | "TX Greater 1518 Byte Frames", | |
179 | "EEE TX LPI Transitions", | |
180 | "EEE TX LPI Time", | |
181 | }; | |
182 | ||
183 | struct lan78xx_statstage { | |
184 | u32 rx_fcs_errors; | |
185 | u32 rx_alignment_errors; | |
186 | u32 rx_fragment_errors; | |
187 | u32 rx_jabber_errors; | |
188 | u32 rx_undersize_frame_errors; | |
189 | u32 rx_oversize_frame_errors; | |
190 | u32 rx_dropped_frames; | |
191 | u32 rx_unicast_byte_count; | |
192 | u32 rx_broadcast_byte_count; | |
193 | u32 rx_multicast_byte_count; | |
194 | u32 rx_unicast_frames; | |
195 | u32 rx_broadcast_frames; | |
196 | u32 rx_multicast_frames; | |
197 | u32 rx_pause_frames; | |
198 | u32 rx_64_byte_frames; | |
199 | u32 rx_65_127_byte_frames; | |
200 | u32 rx_128_255_byte_frames; | |
201 | u32 rx_256_511_bytes_frames; | |
202 | u32 rx_512_1023_byte_frames; | |
203 | u32 rx_1024_1518_byte_frames; | |
204 | u32 rx_greater_1518_byte_frames; | |
205 | u32 eee_rx_lpi_transitions; | |
206 | u32 eee_rx_lpi_time; | |
207 | u32 tx_fcs_errors; | |
208 | u32 tx_excess_deferral_errors; | |
209 | u32 tx_carrier_errors; | |
210 | u32 tx_bad_byte_count; | |
211 | u32 tx_single_collisions; | |
212 | u32 tx_multiple_collisions; | |
213 | u32 tx_excessive_collision; | |
214 | u32 tx_late_collisions; | |
215 | u32 tx_unicast_byte_count; | |
216 | u32 tx_broadcast_byte_count; | |
217 | u32 tx_multicast_byte_count; | |
218 | u32 tx_unicast_frames; | |
219 | u32 tx_broadcast_frames; | |
220 | u32 tx_multicast_frames; | |
221 | u32 tx_pause_frames; | |
222 | u32 tx_64_byte_frames; | |
223 | u32 tx_65_127_byte_frames; | |
224 | u32 tx_128_255_byte_frames; | |
225 | u32 tx_256_511_bytes_frames; | |
226 | u32 tx_512_1023_byte_frames; | |
227 | u32 tx_1024_1518_byte_frames; | |
228 | u32 tx_greater_1518_byte_frames; | |
229 | u32 eee_tx_lpi_transitions; | |
230 | u32 eee_tx_lpi_time; | |
231 | }; | |
232 | ||
20ff5565 WH |
233 | struct lan78xx_statstage64 { |
234 | u64 rx_fcs_errors; | |
235 | u64 rx_alignment_errors; | |
236 | u64 rx_fragment_errors; | |
237 | u64 rx_jabber_errors; | |
238 | u64 rx_undersize_frame_errors; | |
239 | u64 rx_oversize_frame_errors; | |
240 | u64 rx_dropped_frames; | |
241 | u64 rx_unicast_byte_count; | |
242 | u64 rx_broadcast_byte_count; | |
243 | u64 rx_multicast_byte_count; | |
244 | u64 rx_unicast_frames; | |
245 | u64 rx_broadcast_frames; | |
246 | u64 rx_multicast_frames; | |
247 | u64 rx_pause_frames; | |
248 | u64 rx_64_byte_frames; | |
249 | u64 rx_65_127_byte_frames; | |
250 | u64 rx_128_255_byte_frames; | |
251 | u64 rx_256_511_bytes_frames; | |
252 | u64 rx_512_1023_byte_frames; | |
253 | u64 rx_1024_1518_byte_frames; | |
254 | u64 rx_greater_1518_byte_frames; | |
255 | u64 eee_rx_lpi_transitions; | |
256 | u64 eee_rx_lpi_time; | |
257 | u64 tx_fcs_errors; | |
258 | u64 tx_excess_deferral_errors; | |
259 | u64 tx_carrier_errors; | |
260 | u64 tx_bad_byte_count; | |
261 | u64 tx_single_collisions; | |
262 | u64 tx_multiple_collisions; | |
263 | u64 tx_excessive_collision; | |
264 | u64 tx_late_collisions; | |
265 | u64 tx_unicast_byte_count; | |
266 | u64 tx_broadcast_byte_count; | |
267 | u64 tx_multicast_byte_count; | |
268 | u64 tx_unicast_frames; | |
269 | u64 tx_broadcast_frames; | |
270 | u64 tx_multicast_frames; | |
271 | u64 tx_pause_frames; | |
272 | u64 tx_64_byte_frames; | |
273 | u64 tx_65_127_byte_frames; | |
274 | u64 tx_128_255_byte_frames; | |
275 | u64 tx_256_511_bytes_frames; | |
276 | u64 tx_512_1023_byte_frames; | |
277 | u64 tx_1024_1518_byte_frames; | |
278 | u64 tx_greater_1518_byte_frames; | |
279 | u64 eee_tx_lpi_transitions; | |
280 | u64 eee_tx_lpi_time; | |
281 | }; | |
282 | ||
55d7de9d WH |
283 | struct lan78xx_net; |
284 | ||
285 | struct lan78xx_priv { | |
286 | struct lan78xx_net *dev; | |
287 | u32 rfe_ctl; | |
288 | u32 mchash_table[DP_SEL_VHF_HASH_LEN]; /* multicat hash table */ | |
289 | u32 pfilter_table[NUM_OF_MAF][2]; /* perfect filter table */ | |
290 | u32 vlan_table[DP_SEL_VHF_VLAN_LEN]; | |
291 | struct mutex dataport_mutex; /* for dataport access */ | |
292 | spinlock_t rfe_ctl_lock; /* for rfe register access */ | |
293 | struct work_struct set_multicast; | |
294 | struct work_struct set_vlan; | |
295 | u32 wol; | |
296 | }; | |
297 | ||
298 | enum skb_state { | |
299 | illegal = 0, | |
300 | tx_start, | |
301 | tx_done, | |
302 | rx_start, | |
303 | rx_done, | |
304 | rx_cleanup, | |
305 | unlink_start | |
306 | }; | |
307 | ||
308 | struct skb_data { /* skb->cb is one of these */ | |
309 | struct urb *urb; | |
310 | struct lan78xx_net *dev; | |
311 | enum skb_state state; | |
312 | size_t length; | |
74d79a2e | 313 | int num_of_packet; |
55d7de9d WH |
314 | }; |
315 | ||
316 | struct usb_context { | |
317 | struct usb_ctrlrequest req; | |
318 | struct lan78xx_net *dev; | |
319 | }; | |
320 | ||
321 | #define EVENT_TX_HALT 0 | |
322 | #define EVENT_RX_HALT 1 | |
323 | #define EVENT_RX_MEMORY 2 | |
324 | #define EVENT_STS_SPLIT 3 | |
325 | #define EVENT_LINK_RESET 4 | |
326 | #define EVENT_RX_PAUSED 5 | |
327 | #define EVENT_DEV_WAKING 6 | |
328 | #define EVENT_DEV_ASLEEP 7 | |
329 | #define EVENT_DEV_OPEN 8 | |
20ff5565 WH |
330 | #define EVENT_STAT_UPDATE 9 |
331 | ||
332 | struct statstage { | |
333 | struct mutex access_lock; /* for stats access */ | |
334 | struct lan78xx_statstage saved; | |
335 | struct lan78xx_statstage rollover_count; | |
336 | struct lan78xx_statstage rollover_max; | |
337 | struct lan78xx_statstage64 curr_stat; | |
338 | }; | |
55d7de9d | 339 | |
cc89c323 WH |
340 | struct irq_domain_data { |
341 | struct irq_domain *irqdomain; | |
342 | unsigned int phyirq; | |
343 | struct irq_chip *irqchip; | |
344 | irq_flow_handler_t irq_handler; | |
345 | u32 irqenable; | |
346 | struct mutex irq_lock; /* for irq bus access */ | |
347 | }; | |
348 | ||
55d7de9d WH |
349 | struct lan78xx_net { |
350 | struct net_device *net; | |
351 | struct usb_device *udev; | |
352 | struct usb_interface *intf; | |
353 | void *driver_priv; | |
354 | ||
355 | int rx_qlen; | |
356 | int tx_qlen; | |
357 | struct sk_buff_head rxq; | |
358 | struct sk_buff_head txq; | |
359 | struct sk_buff_head done; | |
360 | struct sk_buff_head rxq_pause; | |
361 | struct sk_buff_head txq_pend; | |
362 | ||
363 | struct tasklet_struct bh; | |
364 | struct delayed_work wq; | |
365 | ||
55d7de9d WH |
366 | int msg_enable; |
367 | ||
368 | struct urb *urb_intr; | |
369 | struct usb_anchor deferred; | |
370 | ||
371 | struct mutex phy_mutex; /* for phy access */ | |
372 | unsigned pipe_in, pipe_out, pipe_intr; | |
373 | ||
374 | u32 hard_mtu; /* count any extra framing */ | |
375 | size_t rx_urb_size; /* size for rx urbs */ | |
376 | ||
377 | unsigned long flags; | |
378 | ||
379 | wait_queue_head_t *wait; | |
380 | unsigned char suspend_count; | |
381 | ||
382 | unsigned maxpacket; | |
383 | struct timer_list delay; | |
20ff5565 | 384 | struct timer_list stat_monitor; |
55d7de9d WH |
385 | |
386 | unsigned long data[5]; | |
55d7de9d WH |
387 | |
388 | int link_on; | |
389 | u8 mdix_ctrl; | |
ce85e13a | 390 | |
87177ba6 WH |
391 | u32 chipid; |
392 | u32 chiprev; | |
ce85e13a | 393 | struct mii_bus *mdiobus; |
02dc1f3d | 394 | phy_interface_t interface; |
349e0c5e WH |
395 | |
396 | int fc_autoneg; | |
397 | u8 fc_request_control; | |
20ff5565 WH |
398 | |
399 | int delta; | |
400 | struct statstage stats; | |
cc89c323 WH |
401 | |
402 | struct irq_domain_data domain_data; | |
55d7de9d WH |
403 | }; |
404 | ||
02dc1f3d WH |
405 | /* define external phy id */ |
406 | #define PHY_LAN8835 (0x0007C130) | |
407 | #define PHY_KSZ9031RNX (0x00221620) | |
408 | ||
55d7de9d WH |
409 | /* use ethtool to change the level for any given device */ |
410 | static int msg_level = -1; | |
411 | module_param(msg_level, int, 0); | |
412 | MODULE_PARM_DESC(msg_level, "Override default message level"); | |
413 | ||
414 | static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data) | |
415 | { | |
416 | u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL); | |
417 | int ret; | |
418 | ||
55d7de9d WH |
419 | if (!buf) |
420 | return -ENOMEM; | |
421 | ||
422 | ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), | |
423 | USB_VENDOR_REQUEST_READ_REGISTER, | |
424 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
425 | 0, index, buf, 4, USB_CTRL_GET_TIMEOUT); | |
426 | if (likely(ret >= 0)) { | |
427 | le32_to_cpus(buf); | |
428 | *data = *buf; | |
429 | } else { | |
430 | netdev_warn(dev->net, | |
431 | "Failed to read register index 0x%08x. ret = %d", | |
432 | index, ret); | |
433 | } | |
434 | ||
435 | kfree(buf); | |
436 | ||
437 | return ret; | |
438 | } | |
439 | ||
440 | static int lan78xx_write_reg(struct lan78xx_net *dev, u32 index, u32 data) | |
441 | { | |
442 | u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL); | |
443 | int ret; | |
444 | ||
55d7de9d WH |
445 | if (!buf) |
446 | return -ENOMEM; | |
447 | ||
448 | *buf = data; | |
449 | cpu_to_le32s(buf); | |
450 | ||
451 | ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), | |
452 | USB_VENDOR_REQUEST_WRITE_REGISTER, | |
453 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
454 | 0, index, buf, 4, USB_CTRL_SET_TIMEOUT); | |
455 | if (unlikely(ret < 0)) { | |
456 | netdev_warn(dev->net, | |
457 | "Failed to write register index 0x%08x. ret = %d", | |
458 | index, ret); | |
459 | } | |
460 | ||
461 | kfree(buf); | |
462 | ||
463 | return ret; | |
464 | } | |
465 | ||
466 | static int lan78xx_read_stats(struct lan78xx_net *dev, | |
467 | struct lan78xx_statstage *data) | |
468 | { | |
469 | int ret = 0; | |
470 | int i; | |
471 | struct lan78xx_statstage *stats; | |
472 | u32 *src; | |
473 | u32 *dst; | |
474 | ||
55d7de9d WH |
475 | stats = kmalloc(sizeof(*stats), GFP_KERNEL); |
476 | if (!stats) | |
477 | return -ENOMEM; | |
478 | ||
479 | ret = usb_control_msg(dev->udev, | |
480 | usb_rcvctrlpipe(dev->udev, 0), | |
481 | USB_VENDOR_REQUEST_GET_STATS, | |
482 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
483 | 0, | |
484 | 0, | |
485 | (void *)stats, | |
486 | sizeof(*stats), | |
487 | USB_CTRL_SET_TIMEOUT); | |
488 | if (likely(ret >= 0)) { | |
489 | src = (u32 *)stats; | |
490 | dst = (u32 *)data; | |
491 | for (i = 0; i < sizeof(*stats)/sizeof(u32); i++) { | |
492 | le32_to_cpus(&src[i]); | |
493 | dst[i] = src[i]; | |
494 | } | |
495 | } else { | |
496 | netdev_warn(dev->net, | |
4f5cf943 | 497 | "Failed to read stat ret = %d", ret); |
55d7de9d WH |
498 | } |
499 | ||
500 | kfree(stats); | |
501 | ||
502 | return ret; | |
503 | } | |
504 | ||
20ff5565 WH |
505 | #define check_counter_rollover(struct1, dev_stats, member) { \ |
506 | if (struct1->member < dev_stats.saved.member) \ | |
507 | dev_stats.rollover_count.member++; \ | |
508 | } | |
509 | ||
510 | static void lan78xx_check_stat_rollover(struct lan78xx_net *dev, | |
511 | struct lan78xx_statstage *stats) | |
512 | { | |
513 | check_counter_rollover(stats, dev->stats, rx_fcs_errors); | |
514 | check_counter_rollover(stats, dev->stats, rx_alignment_errors); | |
515 | check_counter_rollover(stats, dev->stats, rx_fragment_errors); | |
516 | check_counter_rollover(stats, dev->stats, rx_jabber_errors); | |
517 | check_counter_rollover(stats, dev->stats, rx_undersize_frame_errors); | |
518 | check_counter_rollover(stats, dev->stats, rx_oversize_frame_errors); | |
519 | check_counter_rollover(stats, dev->stats, rx_dropped_frames); | |
520 | check_counter_rollover(stats, dev->stats, rx_unicast_byte_count); | |
521 | check_counter_rollover(stats, dev->stats, rx_broadcast_byte_count); | |
522 | check_counter_rollover(stats, dev->stats, rx_multicast_byte_count); | |
523 | check_counter_rollover(stats, dev->stats, rx_unicast_frames); | |
524 | check_counter_rollover(stats, dev->stats, rx_broadcast_frames); | |
525 | check_counter_rollover(stats, dev->stats, rx_multicast_frames); | |
526 | check_counter_rollover(stats, dev->stats, rx_pause_frames); | |
527 | check_counter_rollover(stats, dev->stats, rx_64_byte_frames); | |
528 | check_counter_rollover(stats, dev->stats, rx_65_127_byte_frames); | |
529 | check_counter_rollover(stats, dev->stats, rx_128_255_byte_frames); | |
530 | check_counter_rollover(stats, dev->stats, rx_256_511_bytes_frames); | |
531 | check_counter_rollover(stats, dev->stats, rx_512_1023_byte_frames); | |
532 | check_counter_rollover(stats, dev->stats, rx_1024_1518_byte_frames); | |
533 | check_counter_rollover(stats, dev->stats, rx_greater_1518_byte_frames); | |
534 | check_counter_rollover(stats, dev->stats, eee_rx_lpi_transitions); | |
535 | check_counter_rollover(stats, dev->stats, eee_rx_lpi_time); | |
536 | check_counter_rollover(stats, dev->stats, tx_fcs_errors); | |
537 | check_counter_rollover(stats, dev->stats, tx_excess_deferral_errors); | |
538 | check_counter_rollover(stats, dev->stats, tx_carrier_errors); | |
539 | check_counter_rollover(stats, dev->stats, tx_bad_byte_count); | |
540 | check_counter_rollover(stats, dev->stats, tx_single_collisions); | |
541 | check_counter_rollover(stats, dev->stats, tx_multiple_collisions); | |
542 | check_counter_rollover(stats, dev->stats, tx_excessive_collision); | |
543 | check_counter_rollover(stats, dev->stats, tx_late_collisions); | |
544 | check_counter_rollover(stats, dev->stats, tx_unicast_byte_count); | |
545 | check_counter_rollover(stats, dev->stats, tx_broadcast_byte_count); | |
546 | check_counter_rollover(stats, dev->stats, tx_multicast_byte_count); | |
547 | check_counter_rollover(stats, dev->stats, tx_unicast_frames); | |
548 | check_counter_rollover(stats, dev->stats, tx_broadcast_frames); | |
549 | check_counter_rollover(stats, dev->stats, tx_multicast_frames); | |
550 | check_counter_rollover(stats, dev->stats, tx_pause_frames); | |
551 | check_counter_rollover(stats, dev->stats, tx_64_byte_frames); | |
552 | check_counter_rollover(stats, dev->stats, tx_65_127_byte_frames); | |
553 | check_counter_rollover(stats, dev->stats, tx_128_255_byte_frames); | |
554 | check_counter_rollover(stats, dev->stats, tx_256_511_bytes_frames); | |
555 | check_counter_rollover(stats, dev->stats, tx_512_1023_byte_frames); | |
556 | check_counter_rollover(stats, dev->stats, tx_1024_1518_byte_frames); | |
557 | check_counter_rollover(stats, dev->stats, tx_greater_1518_byte_frames); | |
558 | check_counter_rollover(stats, dev->stats, eee_tx_lpi_transitions); | |
559 | check_counter_rollover(stats, dev->stats, eee_tx_lpi_time); | |
560 | ||
561 | memcpy(&dev->stats.saved, stats, sizeof(struct lan78xx_statstage)); | |
562 | } | |
563 | ||
564 | static void lan78xx_update_stats(struct lan78xx_net *dev) | |
565 | { | |
566 | u32 *p, *count, *max; | |
567 | u64 *data; | |
568 | int i; | |
569 | struct lan78xx_statstage lan78xx_stats; | |
570 | ||
571 | if (usb_autopm_get_interface(dev->intf) < 0) | |
572 | return; | |
573 | ||
574 | p = (u32 *)&lan78xx_stats; | |
575 | count = (u32 *)&dev->stats.rollover_count; | |
576 | max = (u32 *)&dev->stats.rollover_max; | |
577 | data = (u64 *)&dev->stats.curr_stat; | |
578 | ||
579 | mutex_lock(&dev->stats.access_lock); | |
580 | ||
581 | if (lan78xx_read_stats(dev, &lan78xx_stats) > 0) | |
582 | lan78xx_check_stat_rollover(dev, &lan78xx_stats); | |
583 | ||
584 | for (i = 0; i < (sizeof(lan78xx_stats) / (sizeof(u32))); i++) | |
585 | data[i] = (u64)p[i] + ((u64)count[i] * ((u64)max[i] + 1)); | |
586 | ||
587 | mutex_unlock(&dev->stats.access_lock); | |
588 | ||
589 | usb_autopm_put_interface(dev->intf); | |
590 | } | |
591 | ||
55d7de9d WH |
592 | /* Loop until the read is completed with timeout called with phy_mutex held */ |
593 | static int lan78xx_phy_wait_not_busy(struct lan78xx_net *dev) | |
594 | { | |
595 | unsigned long start_time = jiffies; | |
596 | u32 val; | |
597 | int ret; | |
598 | ||
599 | do { | |
600 | ret = lan78xx_read_reg(dev, MII_ACC, &val); | |
601 | if (unlikely(ret < 0)) | |
602 | return -EIO; | |
603 | ||
604 | if (!(val & MII_ACC_MII_BUSY_)) | |
605 | return 0; | |
606 | } while (!time_after(jiffies, start_time + HZ)); | |
607 | ||
608 | return -EIO; | |
609 | } | |
610 | ||
611 | static inline u32 mii_access(int id, int index, int read) | |
612 | { | |
613 | u32 ret; | |
614 | ||
615 | ret = ((u32)id << MII_ACC_PHY_ADDR_SHIFT_) & MII_ACC_PHY_ADDR_MASK_; | |
616 | ret |= ((u32)index << MII_ACC_MIIRINDA_SHIFT_) & MII_ACC_MIIRINDA_MASK_; | |
617 | if (read) | |
618 | ret |= MII_ACC_MII_READ_; | |
619 | else | |
620 | ret |= MII_ACC_MII_WRITE_; | |
621 | ret |= MII_ACC_MII_BUSY_; | |
622 | ||
623 | return ret; | |
624 | } | |
625 | ||
55d7de9d WH |
626 | static int lan78xx_wait_eeprom(struct lan78xx_net *dev) |
627 | { | |
628 | unsigned long start_time = jiffies; | |
629 | u32 val; | |
630 | int ret; | |
631 | ||
632 | do { | |
633 | ret = lan78xx_read_reg(dev, E2P_CMD, &val); | |
634 | if (unlikely(ret < 0)) | |
635 | return -EIO; | |
636 | ||
637 | if (!(val & E2P_CMD_EPC_BUSY_) || | |
638 | (val & E2P_CMD_EPC_TIMEOUT_)) | |
639 | break; | |
640 | usleep_range(40, 100); | |
641 | } while (!time_after(jiffies, start_time + HZ)); | |
642 | ||
643 | if (val & (E2P_CMD_EPC_TIMEOUT_ | E2P_CMD_EPC_BUSY_)) { | |
644 | netdev_warn(dev->net, "EEPROM read operation timeout"); | |
645 | return -EIO; | |
646 | } | |
647 | ||
648 | return 0; | |
649 | } | |
650 | ||
651 | static int lan78xx_eeprom_confirm_not_busy(struct lan78xx_net *dev) | |
652 | { | |
653 | unsigned long start_time = jiffies; | |
654 | u32 val; | |
655 | int ret; | |
656 | ||
657 | do { | |
658 | ret = lan78xx_read_reg(dev, E2P_CMD, &val); | |
659 | if (unlikely(ret < 0)) | |
660 | return -EIO; | |
661 | ||
662 | if (!(val & E2P_CMD_EPC_BUSY_)) | |
663 | return 0; | |
664 | ||
665 | usleep_range(40, 100); | |
666 | } while (!time_after(jiffies, start_time + HZ)); | |
667 | ||
668 | netdev_warn(dev->net, "EEPROM is busy"); | |
669 | return -EIO; | |
670 | } | |
671 | ||
672 | static int lan78xx_read_raw_eeprom(struct lan78xx_net *dev, u32 offset, | |
673 | u32 length, u8 *data) | |
674 | { | |
675 | u32 val; | |
a0db7d10 | 676 | u32 saved; |
55d7de9d | 677 | int i, ret; |
a0db7d10 WH |
678 | int retval; |
679 | ||
680 | /* depends on chip, some EEPROM pins are muxed with LED function. | |
681 | * disable & restore LED function to access EEPROM. | |
682 | */ | |
683 | ret = lan78xx_read_reg(dev, HW_CFG, &val); | |
684 | saved = val; | |
87177ba6 | 685 | if (dev->chipid == ID_REV_CHIP_ID_7800_) { |
a0db7d10 WH |
686 | val &= ~(HW_CFG_LED1_EN_ | HW_CFG_LED0_EN_); |
687 | ret = lan78xx_write_reg(dev, HW_CFG, val); | |
688 | } | |
55d7de9d | 689 | |
a0db7d10 WH |
690 | retval = lan78xx_eeprom_confirm_not_busy(dev); |
691 | if (retval) | |
692 | return retval; | |
55d7de9d WH |
693 | |
694 | for (i = 0; i < length; i++) { | |
695 | val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_READ_; | |
696 | val |= (offset & E2P_CMD_EPC_ADDR_MASK_); | |
697 | ret = lan78xx_write_reg(dev, E2P_CMD, val); | |
a0db7d10 WH |
698 | if (unlikely(ret < 0)) { |
699 | retval = -EIO; | |
700 | goto exit; | |
701 | } | |
55d7de9d | 702 | |
a0db7d10 WH |
703 | retval = lan78xx_wait_eeprom(dev); |
704 | if (retval < 0) | |
705 | goto exit; | |
55d7de9d WH |
706 | |
707 | ret = lan78xx_read_reg(dev, E2P_DATA, &val); | |
a0db7d10 WH |
708 | if (unlikely(ret < 0)) { |
709 | retval = -EIO; | |
710 | goto exit; | |
711 | } | |
55d7de9d WH |
712 | |
713 | data[i] = val & 0xFF; | |
714 | offset++; | |
715 | } | |
716 | ||
a0db7d10 WH |
717 | retval = 0; |
718 | exit: | |
87177ba6 | 719 | if (dev->chipid == ID_REV_CHIP_ID_7800_) |
a0db7d10 WH |
720 | ret = lan78xx_write_reg(dev, HW_CFG, saved); |
721 | ||
722 | return retval; | |
55d7de9d WH |
723 | } |
724 | ||
725 | static int lan78xx_read_eeprom(struct lan78xx_net *dev, u32 offset, | |
726 | u32 length, u8 *data) | |
727 | { | |
728 | u8 sig; | |
729 | int ret; | |
730 | ||
731 | ret = lan78xx_read_raw_eeprom(dev, 0, 1, &sig); | |
732 | if ((ret == 0) && (sig == EEPROM_INDICATOR)) | |
733 | ret = lan78xx_read_raw_eeprom(dev, offset, length, data); | |
734 | else | |
735 | ret = -EINVAL; | |
736 | ||
737 | return ret; | |
738 | } | |
739 | ||
740 | static int lan78xx_write_raw_eeprom(struct lan78xx_net *dev, u32 offset, | |
741 | u32 length, u8 *data) | |
742 | { | |
743 | u32 val; | |
a0db7d10 | 744 | u32 saved; |
55d7de9d | 745 | int i, ret; |
a0db7d10 WH |
746 | int retval; |
747 | ||
748 | /* depends on chip, some EEPROM pins are muxed with LED function. | |
749 | * disable & restore LED function to access EEPROM. | |
750 | */ | |
751 | ret = lan78xx_read_reg(dev, HW_CFG, &val); | |
752 | saved = val; | |
87177ba6 | 753 | if (dev->chipid == ID_REV_CHIP_ID_7800_) { |
a0db7d10 WH |
754 | val &= ~(HW_CFG_LED1_EN_ | HW_CFG_LED0_EN_); |
755 | ret = lan78xx_write_reg(dev, HW_CFG, val); | |
756 | } | |
55d7de9d | 757 | |
a0db7d10 WH |
758 | retval = lan78xx_eeprom_confirm_not_busy(dev); |
759 | if (retval) | |
760 | goto exit; | |
55d7de9d WH |
761 | |
762 | /* Issue write/erase enable command */ | |
763 | val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_EWEN_; | |
764 | ret = lan78xx_write_reg(dev, E2P_CMD, val); | |
a0db7d10 WH |
765 | if (unlikely(ret < 0)) { |
766 | retval = -EIO; | |
767 | goto exit; | |
768 | } | |
55d7de9d | 769 | |
a0db7d10 WH |
770 | retval = lan78xx_wait_eeprom(dev); |
771 | if (retval < 0) | |
772 | goto exit; | |
55d7de9d WH |
773 | |
774 | for (i = 0; i < length; i++) { | |
775 | /* Fill data register */ | |
776 | val = data[i]; | |
777 | ret = lan78xx_write_reg(dev, E2P_DATA, val); | |
a0db7d10 WH |
778 | if (ret < 0) { |
779 | retval = -EIO; | |
780 | goto exit; | |
781 | } | |
55d7de9d WH |
782 | |
783 | /* Send "write" command */ | |
784 | val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_WRITE_; | |
785 | val |= (offset & E2P_CMD_EPC_ADDR_MASK_); | |
786 | ret = lan78xx_write_reg(dev, E2P_CMD, val); | |
a0db7d10 WH |
787 | if (ret < 0) { |
788 | retval = -EIO; | |
789 | goto exit; | |
790 | } | |
55d7de9d | 791 | |
a0db7d10 WH |
792 | retval = lan78xx_wait_eeprom(dev); |
793 | if (retval < 0) | |
794 | goto exit; | |
55d7de9d WH |
795 | |
796 | offset++; | |
797 | } | |
798 | ||
a0db7d10 WH |
799 | retval = 0; |
800 | exit: | |
87177ba6 | 801 | if (dev->chipid == ID_REV_CHIP_ID_7800_) |
a0db7d10 WH |
802 | ret = lan78xx_write_reg(dev, HW_CFG, saved); |
803 | ||
804 | return retval; | |
55d7de9d WH |
805 | } |
806 | ||
807 | static int lan78xx_read_raw_otp(struct lan78xx_net *dev, u32 offset, | |
808 | u32 length, u8 *data) | |
809 | { | |
810 | int i; | |
811 | int ret; | |
812 | u32 buf; | |
813 | unsigned long timeout; | |
814 | ||
815 | ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); | |
816 | ||
817 | if (buf & OTP_PWR_DN_PWRDN_N_) { | |
818 | /* clear it and wait to be cleared */ | |
819 | ret = lan78xx_write_reg(dev, OTP_PWR_DN, 0); | |
820 | ||
821 | timeout = jiffies + HZ; | |
822 | do { | |
823 | usleep_range(1, 10); | |
824 | ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); | |
825 | if (time_after(jiffies, timeout)) { | |
826 | netdev_warn(dev->net, | |
827 | "timeout on OTP_PWR_DN"); | |
828 | return -EIO; | |
829 | } | |
830 | } while (buf & OTP_PWR_DN_PWRDN_N_); | |
831 | } | |
832 | ||
833 | for (i = 0; i < length; i++) { | |
834 | ret = lan78xx_write_reg(dev, OTP_ADDR1, | |
835 | ((offset + i) >> 8) & OTP_ADDR1_15_11); | |
836 | ret = lan78xx_write_reg(dev, OTP_ADDR2, | |
837 | ((offset + i) & OTP_ADDR2_10_3)); | |
838 | ||
839 | ret = lan78xx_write_reg(dev, OTP_FUNC_CMD, OTP_FUNC_CMD_READ_); | |
840 | ret = lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); | |
841 | ||
842 | timeout = jiffies + HZ; | |
843 | do { | |
844 | udelay(1); | |
845 | ret = lan78xx_read_reg(dev, OTP_STATUS, &buf); | |
846 | if (time_after(jiffies, timeout)) { | |
847 | netdev_warn(dev->net, | |
848 | "timeout on OTP_STATUS"); | |
849 | return -EIO; | |
850 | } | |
851 | } while (buf & OTP_STATUS_BUSY_); | |
852 | ||
853 | ret = lan78xx_read_reg(dev, OTP_RD_DATA, &buf); | |
854 | ||
855 | data[i] = (u8)(buf & 0xFF); | |
856 | } | |
857 | ||
858 | return 0; | |
859 | } | |
860 | ||
9fb6066d WH |
861 | static int lan78xx_write_raw_otp(struct lan78xx_net *dev, u32 offset, |
862 | u32 length, u8 *data) | |
863 | { | |
864 | int i; | |
865 | int ret; | |
866 | u32 buf; | |
867 | unsigned long timeout; | |
868 | ||
869 | ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); | |
870 | ||
871 | if (buf & OTP_PWR_DN_PWRDN_N_) { | |
872 | /* clear it and wait to be cleared */ | |
873 | ret = lan78xx_write_reg(dev, OTP_PWR_DN, 0); | |
874 | ||
875 | timeout = jiffies + HZ; | |
876 | do { | |
877 | udelay(1); | |
878 | ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); | |
879 | if (time_after(jiffies, timeout)) { | |
880 | netdev_warn(dev->net, | |
881 | "timeout on OTP_PWR_DN completion"); | |
882 | return -EIO; | |
883 | } | |
884 | } while (buf & OTP_PWR_DN_PWRDN_N_); | |
885 | } | |
886 | ||
887 | /* set to BYTE program mode */ | |
888 | ret = lan78xx_write_reg(dev, OTP_PRGM_MODE, OTP_PRGM_MODE_BYTE_); | |
889 | ||
890 | for (i = 0; i < length; i++) { | |
891 | ret = lan78xx_write_reg(dev, OTP_ADDR1, | |
892 | ((offset + i) >> 8) & OTP_ADDR1_15_11); | |
893 | ret = lan78xx_write_reg(dev, OTP_ADDR2, | |
894 | ((offset + i) & OTP_ADDR2_10_3)); | |
895 | ret = lan78xx_write_reg(dev, OTP_PRGM_DATA, data[i]); | |
896 | ret = lan78xx_write_reg(dev, OTP_TST_CMD, OTP_TST_CMD_PRGVRFY_); | |
897 | ret = lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); | |
898 | ||
899 | timeout = jiffies + HZ; | |
900 | do { | |
901 | udelay(1); | |
902 | ret = lan78xx_read_reg(dev, OTP_STATUS, &buf); | |
903 | if (time_after(jiffies, timeout)) { | |
904 | netdev_warn(dev->net, | |
905 | "Timeout on OTP_STATUS completion"); | |
906 | return -EIO; | |
907 | } | |
908 | } while (buf & OTP_STATUS_BUSY_); | |
909 | } | |
910 | ||
911 | return 0; | |
912 | } | |
913 | ||
55d7de9d WH |
914 | static int lan78xx_read_otp(struct lan78xx_net *dev, u32 offset, |
915 | u32 length, u8 *data) | |
916 | { | |
917 | u8 sig; | |
918 | int ret; | |
919 | ||
920 | ret = lan78xx_read_raw_otp(dev, 0, 1, &sig); | |
921 | ||
922 | if (ret == 0) { | |
923 | if (sig == OTP_INDICATOR_1) | |
924 | offset = offset; | |
925 | else if (sig == OTP_INDICATOR_2) | |
926 | offset += 0x100; | |
927 | else | |
928 | ret = -EINVAL; | |
c0e0cd65 PE |
929 | if (!ret) |
930 | ret = lan78xx_read_raw_otp(dev, offset, length, data); | |
55d7de9d WH |
931 | } |
932 | ||
933 | return ret; | |
934 | } | |
935 | ||
936 | static int lan78xx_dataport_wait_not_busy(struct lan78xx_net *dev) | |
937 | { | |
938 | int i, ret; | |
939 | ||
940 | for (i = 0; i < 100; i++) { | |
941 | u32 dp_sel; | |
942 | ||
943 | ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel); | |
944 | if (unlikely(ret < 0)) | |
945 | return -EIO; | |
946 | ||
947 | if (dp_sel & DP_SEL_DPRDY_) | |
948 | return 0; | |
949 | ||
950 | usleep_range(40, 100); | |
951 | } | |
952 | ||
953 | netdev_warn(dev->net, "lan78xx_dataport_wait_not_busy timed out"); | |
954 | ||
955 | return -EIO; | |
956 | } | |
957 | ||
958 | static int lan78xx_dataport_write(struct lan78xx_net *dev, u32 ram_select, | |
959 | u32 addr, u32 length, u32 *buf) | |
960 | { | |
961 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
962 | u32 dp_sel; | |
963 | int i, ret; | |
964 | ||
965 | if (usb_autopm_get_interface(dev->intf) < 0) | |
966 | return 0; | |
967 | ||
968 | mutex_lock(&pdata->dataport_mutex); | |
969 | ||
970 | ret = lan78xx_dataport_wait_not_busy(dev); | |
971 | if (ret < 0) | |
972 | goto done; | |
973 | ||
974 | ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel); | |
975 | ||
976 | dp_sel &= ~DP_SEL_RSEL_MASK_; | |
977 | dp_sel |= ram_select; | |
978 | ret = lan78xx_write_reg(dev, DP_SEL, dp_sel); | |
979 | ||
980 | for (i = 0; i < length; i++) { | |
981 | ret = lan78xx_write_reg(dev, DP_ADDR, addr + i); | |
982 | ||
983 | ret = lan78xx_write_reg(dev, DP_DATA, buf[i]); | |
984 | ||
985 | ret = lan78xx_write_reg(dev, DP_CMD, DP_CMD_WRITE_); | |
986 | ||
987 | ret = lan78xx_dataport_wait_not_busy(dev); | |
988 | if (ret < 0) | |
989 | goto done; | |
990 | } | |
991 | ||
992 | done: | |
993 | mutex_unlock(&pdata->dataport_mutex); | |
994 | usb_autopm_put_interface(dev->intf); | |
995 | ||
996 | return ret; | |
997 | } | |
998 | ||
999 | static void lan78xx_set_addr_filter(struct lan78xx_priv *pdata, | |
1000 | int index, u8 addr[ETH_ALEN]) | |
1001 | { | |
1002 | u32 temp; | |
1003 | ||
1004 | if ((pdata) && (index > 0) && (index < NUM_OF_MAF)) { | |
1005 | temp = addr[3]; | |
1006 | temp = addr[2] | (temp << 8); | |
1007 | temp = addr[1] | (temp << 8); | |
1008 | temp = addr[0] | (temp << 8); | |
1009 | pdata->pfilter_table[index][1] = temp; | |
1010 | temp = addr[5]; | |
1011 | temp = addr[4] | (temp << 8); | |
1012 | temp |= MAF_HI_VALID_ | MAF_HI_TYPE_DST_; | |
1013 | pdata->pfilter_table[index][0] = temp; | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | /* returns hash bit number for given MAC address */ | |
1018 | static inline u32 lan78xx_hash(char addr[ETH_ALEN]) | |
1019 | { | |
1020 | return (ether_crc(ETH_ALEN, addr) >> 23) & 0x1ff; | |
1021 | } | |
1022 | ||
1023 | static void lan78xx_deferred_multicast_write(struct work_struct *param) | |
1024 | { | |
1025 | struct lan78xx_priv *pdata = | |
1026 | container_of(param, struct lan78xx_priv, set_multicast); | |
1027 | struct lan78xx_net *dev = pdata->dev; | |
1028 | int i; | |
1029 | int ret; | |
1030 | ||
1031 | netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x\n", | |
1032 | pdata->rfe_ctl); | |
1033 | ||
1034 | lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, DP_SEL_VHF_VLAN_LEN, | |
1035 | DP_SEL_VHF_HASH_LEN, pdata->mchash_table); | |
1036 | ||
1037 | for (i = 1; i < NUM_OF_MAF; i++) { | |
1038 | ret = lan78xx_write_reg(dev, MAF_HI(i), 0); | |
1039 | ret = lan78xx_write_reg(dev, MAF_LO(i), | |
1040 | pdata->pfilter_table[i][1]); | |
1041 | ret = lan78xx_write_reg(dev, MAF_HI(i), | |
1042 | pdata->pfilter_table[i][0]); | |
1043 | } | |
1044 | ||
1045 | ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); | |
1046 | } | |
1047 | ||
1048 | static void lan78xx_set_multicast(struct net_device *netdev) | |
1049 | { | |
1050 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1051 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
1052 | unsigned long flags; | |
1053 | int i; | |
1054 | ||
1055 | spin_lock_irqsave(&pdata->rfe_ctl_lock, flags); | |
1056 | ||
1057 | pdata->rfe_ctl &= ~(RFE_CTL_UCAST_EN_ | RFE_CTL_MCAST_EN_ | | |
1058 | RFE_CTL_DA_PERFECT_ | RFE_CTL_MCAST_HASH_); | |
1059 | ||
1060 | for (i = 0; i < DP_SEL_VHF_HASH_LEN; i++) | |
1061 | pdata->mchash_table[i] = 0; | |
1062 | /* pfilter_table[0] has own HW address */ | |
1063 | for (i = 1; i < NUM_OF_MAF; i++) { | |
1064 | pdata->pfilter_table[i][0] = | |
1065 | pdata->pfilter_table[i][1] = 0; | |
1066 | } | |
1067 | ||
1068 | pdata->rfe_ctl |= RFE_CTL_BCAST_EN_; | |
1069 | ||
1070 | if (dev->net->flags & IFF_PROMISC) { | |
1071 | netif_dbg(dev, drv, dev->net, "promiscuous mode enabled"); | |
1072 | pdata->rfe_ctl |= RFE_CTL_MCAST_EN_ | RFE_CTL_UCAST_EN_; | |
1073 | } else { | |
1074 | if (dev->net->flags & IFF_ALLMULTI) { | |
1075 | netif_dbg(dev, drv, dev->net, | |
1076 | "receive all multicast enabled"); | |
1077 | pdata->rfe_ctl |= RFE_CTL_MCAST_EN_; | |
1078 | } | |
1079 | } | |
1080 | ||
1081 | if (netdev_mc_count(dev->net)) { | |
1082 | struct netdev_hw_addr *ha; | |
1083 | int i; | |
1084 | ||
1085 | netif_dbg(dev, drv, dev->net, "receive multicast hash filter"); | |
1086 | ||
1087 | pdata->rfe_ctl |= RFE_CTL_DA_PERFECT_; | |
1088 | ||
1089 | i = 1; | |
1090 | netdev_for_each_mc_addr(ha, netdev) { | |
1091 | /* set first 32 into Perfect Filter */ | |
1092 | if (i < 33) { | |
1093 | lan78xx_set_addr_filter(pdata, i, ha->addr); | |
1094 | } else { | |
1095 | u32 bitnum = lan78xx_hash(ha->addr); | |
1096 | ||
1097 | pdata->mchash_table[bitnum / 32] |= | |
1098 | (1 << (bitnum % 32)); | |
1099 | pdata->rfe_ctl |= RFE_CTL_MCAST_HASH_; | |
1100 | } | |
1101 | i++; | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); | |
1106 | ||
1107 | /* defer register writes to a sleepable context */ | |
1108 | schedule_work(&pdata->set_multicast); | |
1109 | } | |
1110 | ||
1111 | static int lan78xx_update_flowcontrol(struct lan78xx_net *dev, u8 duplex, | |
1112 | u16 lcladv, u16 rmtadv) | |
1113 | { | |
1114 | u32 flow = 0, fct_flow = 0; | |
1115 | int ret; | |
349e0c5e | 1116 | u8 cap; |
55d7de9d | 1117 | |
349e0c5e WH |
1118 | if (dev->fc_autoneg) |
1119 | cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv); | |
1120 | else | |
1121 | cap = dev->fc_request_control; | |
55d7de9d WH |
1122 | |
1123 | if (cap & FLOW_CTRL_TX) | |
349e0c5e | 1124 | flow |= (FLOW_CR_TX_FCEN_ | 0xFFFF); |
55d7de9d WH |
1125 | |
1126 | if (cap & FLOW_CTRL_RX) | |
1127 | flow |= FLOW_CR_RX_FCEN_; | |
1128 | ||
1129 | if (dev->udev->speed == USB_SPEED_SUPER) | |
1130 | fct_flow = 0x817; | |
1131 | else if (dev->udev->speed == USB_SPEED_HIGH) | |
1132 | fct_flow = 0x211; | |
1133 | ||
1134 | netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s", | |
1135 | (cap & FLOW_CTRL_RX ? "enabled" : "disabled"), | |
1136 | (cap & FLOW_CTRL_TX ? "enabled" : "disabled")); | |
1137 | ||
1138 | ret = lan78xx_write_reg(dev, FCT_FLOW, fct_flow); | |
1139 | ||
1140 | /* threshold value should be set before enabling flow */ | |
1141 | ret = lan78xx_write_reg(dev, FLOW, flow); | |
1142 | ||
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | static int lan78xx_link_reset(struct lan78xx_net *dev) | |
1147 | { | |
ce85e13a | 1148 | struct phy_device *phydev = dev->net->phydev; |
6e76510e | 1149 | struct ethtool_link_ksettings ecmd; |
99c79ece | 1150 | int ladv, radv, ret; |
55d7de9d WH |
1151 | u32 buf; |
1152 | ||
55d7de9d WH |
1153 | /* clear LAN78xx interrupt status */ |
1154 | ret = lan78xx_write_reg(dev, INT_STS, INT_STS_PHY_INT_); | |
1155 | if (unlikely(ret < 0)) | |
1156 | return -EIO; | |
1157 | ||
ce85e13a WH |
1158 | phy_read_status(phydev); |
1159 | ||
1160 | if (!phydev->link && dev->link_on) { | |
55d7de9d | 1161 | dev->link_on = false; |
55d7de9d WH |
1162 | |
1163 | /* reset MAC */ | |
1164 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); | |
1165 | if (unlikely(ret < 0)) | |
1166 | return -EIO; | |
1167 | buf |= MAC_CR_RST_; | |
1168 | ret = lan78xx_write_reg(dev, MAC_CR, buf); | |
1169 | if (unlikely(ret < 0)) | |
1170 | return -EIO; | |
e4953910 | 1171 | |
20ff5565 | 1172 | del_timer(&dev->stat_monitor); |
ce85e13a | 1173 | } else if (phydev->link && !dev->link_on) { |
55d7de9d WH |
1174 | dev->link_on = true; |
1175 | ||
6e76510e | 1176 | phy_ethtool_ksettings_get(phydev, &ecmd); |
55d7de9d | 1177 | |
55d7de9d | 1178 | if (dev->udev->speed == USB_SPEED_SUPER) { |
6e76510e | 1179 | if (ecmd.base.speed == 1000) { |
55d7de9d WH |
1180 | /* disable U2 */ |
1181 | ret = lan78xx_read_reg(dev, USB_CFG1, &buf); | |
1182 | buf &= ~USB_CFG1_DEV_U2_INIT_EN_; | |
1183 | ret = lan78xx_write_reg(dev, USB_CFG1, buf); | |
1184 | /* enable U1 */ | |
1185 | ret = lan78xx_read_reg(dev, USB_CFG1, &buf); | |
1186 | buf |= USB_CFG1_DEV_U1_INIT_EN_; | |
1187 | ret = lan78xx_write_reg(dev, USB_CFG1, buf); | |
1188 | } else { | |
1189 | /* enable U1 & U2 */ | |
1190 | ret = lan78xx_read_reg(dev, USB_CFG1, &buf); | |
1191 | buf |= USB_CFG1_DEV_U2_INIT_EN_; | |
1192 | buf |= USB_CFG1_DEV_U1_INIT_EN_; | |
1193 | ret = lan78xx_write_reg(dev, USB_CFG1, buf); | |
1194 | } | |
1195 | } | |
1196 | ||
ce85e13a | 1197 | ladv = phy_read(phydev, MII_ADVERTISE); |
99c79ece GU |
1198 | if (ladv < 0) |
1199 | return ladv; | |
55d7de9d | 1200 | |
ce85e13a | 1201 | radv = phy_read(phydev, MII_LPA); |
99c79ece GU |
1202 | if (radv < 0) |
1203 | return radv; | |
55d7de9d WH |
1204 | |
1205 | netif_dbg(dev, link, dev->net, | |
1206 | "speed: %u duplex: %d anadv: 0x%04x anlpa: 0x%04x", | |
6e76510e | 1207 | ecmd.base.speed, ecmd.base.duplex, ladv, radv); |
55d7de9d | 1208 | |
6e76510e PR |
1209 | ret = lan78xx_update_flowcontrol(dev, ecmd.base.duplex, ladv, |
1210 | radv); | |
20ff5565 WH |
1211 | |
1212 | if (!timer_pending(&dev->stat_monitor)) { | |
1213 | dev->delta = 1; | |
1214 | mod_timer(&dev->stat_monitor, | |
1215 | jiffies + STAT_UPDATE_TIMER); | |
1216 | } | |
ccdbe7e2 SW |
1217 | |
1218 | tasklet_schedule(&dev->bh); | |
55d7de9d WH |
1219 | } |
1220 | ||
1221 | return ret; | |
1222 | } | |
1223 | ||
1224 | /* some work can't be done in tasklets, so we use keventd | |
1225 | * | |
1226 | * NOTE: annoying asymmetry: if it's active, schedule_work() fails, | |
1227 | * but tasklet_schedule() doesn't. hope the failure is rare. | |
1228 | */ | |
e0c79ff6 | 1229 | static void lan78xx_defer_kevent(struct lan78xx_net *dev, int work) |
55d7de9d WH |
1230 | { |
1231 | set_bit(work, &dev->flags); | |
1232 | if (!schedule_delayed_work(&dev->wq, 0)) | |
1233 | netdev_err(dev->net, "kevent %d may have been dropped\n", work); | |
1234 | } | |
1235 | ||
1236 | static void lan78xx_status(struct lan78xx_net *dev, struct urb *urb) | |
1237 | { | |
1238 | u32 intdata; | |
1239 | ||
1240 | if (urb->actual_length != 4) { | |
1241 | netdev_warn(dev->net, | |
1242 | "unexpected urb length %d", urb->actual_length); | |
1243 | return; | |
1244 | } | |
1245 | ||
1246 | memcpy(&intdata, urb->transfer_buffer, 4); | |
1247 | le32_to_cpus(&intdata); | |
1248 | ||
1249 | if (intdata & INT_ENP_PHY_INT) { | |
1250 | netif_dbg(dev, link, dev->net, "PHY INTR: 0x%08x\n", intdata); | |
cc89c323 WH |
1251 | lan78xx_defer_kevent(dev, EVENT_LINK_RESET); |
1252 | ||
1253 | if (dev->domain_data.phyirq > 0) | |
1254 | generic_handle_irq(dev->domain_data.phyirq); | |
55d7de9d WH |
1255 | } else |
1256 | netdev_warn(dev->net, | |
1257 | "unexpected interrupt: 0x%08x\n", intdata); | |
1258 | } | |
1259 | ||
1260 | static int lan78xx_ethtool_get_eeprom_len(struct net_device *netdev) | |
1261 | { | |
1262 | return MAX_EEPROM_SIZE; | |
1263 | } | |
1264 | ||
1265 | static int lan78xx_ethtool_get_eeprom(struct net_device *netdev, | |
1266 | struct ethtool_eeprom *ee, u8 *data) | |
1267 | { | |
1268 | struct lan78xx_net *dev = netdev_priv(netdev); | |
8a7ffeb7 NS |
1269 | int ret; |
1270 | ||
1271 | ret = usb_autopm_get_interface(dev->intf); | |
1272 | if (ret) | |
1273 | return ret; | |
55d7de9d WH |
1274 | |
1275 | ee->magic = LAN78XX_EEPROM_MAGIC; | |
1276 | ||
8a7ffeb7 NS |
1277 | ret = lan78xx_read_raw_eeprom(dev, ee->offset, ee->len, data); |
1278 | ||
1279 | usb_autopm_put_interface(dev->intf); | |
1280 | ||
1281 | return ret; | |
55d7de9d WH |
1282 | } |
1283 | ||
1284 | static int lan78xx_ethtool_set_eeprom(struct net_device *netdev, | |
1285 | struct ethtool_eeprom *ee, u8 *data) | |
1286 | { | |
1287 | struct lan78xx_net *dev = netdev_priv(netdev); | |
8a7ffeb7 NS |
1288 | int ret; |
1289 | ||
1290 | ret = usb_autopm_get_interface(dev->intf); | |
1291 | if (ret) | |
1292 | return ret; | |
55d7de9d | 1293 | |
c0776822 NS |
1294 | /* Invalid EEPROM_INDICATOR at offset zero will result in a failure |
1295 | * to load data from EEPROM | |
1296 | */ | |
1297 | if (ee->magic == LAN78XX_EEPROM_MAGIC) | |
8a7ffeb7 | 1298 | ret = lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data); |
55d7de9d WH |
1299 | else if ((ee->magic == LAN78XX_OTP_MAGIC) && |
1300 | (ee->offset == 0) && | |
1301 | (ee->len == 512) && | |
1302 | (data[0] == OTP_INDICATOR_1)) | |
8a7ffeb7 | 1303 | ret = lan78xx_write_raw_otp(dev, ee->offset, ee->len, data); |
55d7de9d | 1304 | |
8a7ffeb7 NS |
1305 | usb_autopm_put_interface(dev->intf); |
1306 | ||
1307 | return ret; | |
55d7de9d WH |
1308 | } |
1309 | ||
1310 | static void lan78xx_get_strings(struct net_device *netdev, u32 stringset, | |
1311 | u8 *data) | |
1312 | { | |
1313 | if (stringset == ETH_SS_STATS) | |
1314 | memcpy(data, lan78xx_gstrings, sizeof(lan78xx_gstrings)); | |
1315 | } | |
1316 | ||
1317 | static int lan78xx_get_sset_count(struct net_device *netdev, int sset) | |
1318 | { | |
1319 | if (sset == ETH_SS_STATS) | |
1320 | return ARRAY_SIZE(lan78xx_gstrings); | |
1321 | else | |
1322 | return -EOPNOTSUPP; | |
1323 | } | |
1324 | ||
1325 | static void lan78xx_get_stats(struct net_device *netdev, | |
1326 | struct ethtool_stats *stats, u64 *data) | |
1327 | { | |
1328 | struct lan78xx_net *dev = netdev_priv(netdev); | |
55d7de9d | 1329 | |
20ff5565 | 1330 | lan78xx_update_stats(dev); |
55d7de9d | 1331 | |
20ff5565 WH |
1332 | mutex_lock(&dev->stats.access_lock); |
1333 | memcpy(data, &dev->stats.curr_stat, sizeof(dev->stats.curr_stat)); | |
1334 | mutex_unlock(&dev->stats.access_lock); | |
55d7de9d WH |
1335 | } |
1336 | ||
1337 | static void lan78xx_get_wol(struct net_device *netdev, | |
1338 | struct ethtool_wolinfo *wol) | |
1339 | { | |
1340 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1341 | int ret; | |
1342 | u32 buf; | |
1343 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
1344 | ||
1345 | if (usb_autopm_get_interface(dev->intf) < 0) | |
1346 | return; | |
1347 | ||
1348 | ret = lan78xx_read_reg(dev, USB_CFG0, &buf); | |
1349 | if (unlikely(ret < 0)) { | |
1350 | wol->supported = 0; | |
1351 | wol->wolopts = 0; | |
1352 | } else { | |
1353 | if (buf & USB_CFG_RMT_WKP_) { | |
1354 | wol->supported = WAKE_ALL; | |
1355 | wol->wolopts = pdata->wol; | |
1356 | } else { | |
1357 | wol->supported = 0; | |
1358 | wol->wolopts = 0; | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | usb_autopm_put_interface(dev->intf); | |
1363 | } | |
1364 | ||
1365 | static int lan78xx_set_wol(struct net_device *netdev, | |
1366 | struct ethtool_wolinfo *wol) | |
1367 | { | |
1368 | struct lan78xx_net *dev = netdev_priv(netdev); | |
1369 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
1370 | int ret; | |
1371 | ||
1372 | ret = usb_autopm_get_interface(dev->intf); | |
1373 | if (ret < 0) | |
1374 | return ret; | |
1375 | ||
9f0962c0 FF |
1376 | if (wol->wolopts & ~WAKE_ALL) |
1377 | return -EINVAL; | |
1378 | ||
1379 | pdata->wol = wol->wolopts; | |
55d7de9d WH |
1380 | |
1381 | device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts); | |
1382 | ||
ce85e13a WH |
1383 | phy_ethtool_set_wol(netdev->phydev, wol); |
1384 | ||
55d7de9d WH |
1385 | usb_autopm_put_interface(dev->intf); |
1386 | ||
1387 | return ret; | |
1388 | } | |
1389 | ||
1390 | static int lan78xx_get_eee(struct net_device *net, struct ethtool_eee *edata) | |
1391 | { | |
1392 | struct lan78xx_net *dev = netdev_priv(net); | |
ce85e13a | 1393 | struct phy_device *phydev = net->phydev; |
55d7de9d WH |
1394 | int ret; |
1395 | u32 buf; | |
55d7de9d WH |
1396 | |
1397 | ret = usb_autopm_get_interface(dev->intf); | |
1398 | if (ret < 0) | |
1399 | return ret; | |
1400 | ||
ce85e13a WH |
1401 | ret = phy_ethtool_get_eee(phydev, edata); |
1402 | if (ret < 0) | |
1403 | goto exit; | |
1404 | ||
55d7de9d WH |
1405 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); |
1406 | if (buf & MAC_CR_EEE_EN_) { | |
55d7de9d | 1407 | edata->eee_enabled = true; |
ce85e13a WH |
1408 | edata->eee_active = !!(edata->advertised & |
1409 | edata->lp_advertised); | |
55d7de9d WH |
1410 | edata->tx_lpi_enabled = true; |
1411 | /* EEE_TX_LPI_REQ_DLY & tx_lpi_timer are same uSec unit */ | |
1412 | ret = lan78xx_read_reg(dev, EEE_TX_LPI_REQ_DLY, &buf); | |
1413 | edata->tx_lpi_timer = buf; | |
1414 | } else { | |
55d7de9d WH |
1415 | edata->eee_enabled = false; |
1416 | edata->eee_active = false; | |
55d7de9d WH |
1417 | edata->tx_lpi_enabled = false; |
1418 | edata->tx_lpi_timer = 0; | |
1419 | } | |
1420 | ||
ce85e13a WH |
1421 | ret = 0; |
1422 | exit: | |
55d7de9d WH |
1423 | usb_autopm_put_interface(dev->intf); |
1424 | ||
ce85e13a | 1425 | return ret; |
55d7de9d WH |
1426 | } |
1427 | ||
1428 | static int lan78xx_set_eee(struct net_device *net, struct ethtool_eee *edata) | |
1429 | { | |
1430 | struct lan78xx_net *dev = netdev_priv(net); | |
1431 | int ret; | |
1432 | u32 buf; | |
1433 | ||
1434 | ret = usb_autopm_get_interface(dev->intf); | |
1435 | if (ret < 0) | |
1436 | return ret; | |
1437 | ||
1438 | if (edata->eee_enabled) { | |
1439 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); | |
1440 | buf |= MAC_CR_EEE_EN_; | |
1441 | ret = lan78xx_write_reg(dev, MAC_CR, buf); | |
1442 | ||
ce85e13a WH |
1443 | phy_ethtool_set_eee(net->phydev, edata); |
1444 | ||
1445 | buf = (u32)edata->tx_lpi_timer; | |
1446 | ret = lan78xx_write_reg(dev, EEE_TX_LPI_REQ_DLY, buf); | |
55d7de9d WH |
1447 | } else { |
1448 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); | |
1449 | buf &= ~MAC_CR_EEE_EN_; | |
1450 | ret = lan78xx_write_reg(dev, MAC_CR, buf); | |
1451 | } | |
1452 | ||
1453 | usb_autopm_put_interface(dev->intf); | |
1454 | ||
1455 | return 0; | |
1456 | } | |
1457 | ||
1458 | static u32 lan78xx_get_link(struct net_device *net) | |
1459 | { | |
ce85e13a | 1460 | phy_read_status(net->phydev); |
55d7de9d | 1461 | |
ce85e13a | 1462 | return net->phydev->link; |
55d7de9d WH |
1463 | } |
1464 | ||
55d7de9d WH |
1465 | static void lan78xx_get_drvinfo(struct net_device *net, |
1466 | struct ethtool_drvinfo *info) | |
1467 | { | |
1468 | struct lan78xx_net *dev = netdev_priv(net); | |
1469 | ||
1470 | strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); | |
1471 | strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
1472 | usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); | |
1473 | } | |
1474 | ||
1475 | static u32 lan78xx_get_msglevel(struct net_device *net) | |
1476 | { | |
1477 | struct lan78xx_net *dev = netdev_priv(net); | |
1478 | ||
1479 | return dev->msg_enable; | |
1480 | } | |
1481 | ||
1482 | static void lan78xx_set_msglevel(struct net_device *net, u32 level) | |
1483 | { | |
1484 | struct lan78xx_net *dev = netdev_priv(net); | |
1485 | ||
1486 | dev->msg_enable = level; | |
1487 | } | |
1488 | ||
6e76510e PR |
1489 | static int lan78xx_get_link_ksettings(struct net_device *net, |
1490 | struct ethtool_link_ksettings *cmd) | |
55d7de9d WH |
1491 | { |
1492 | struct lan78xx_net *dev = netdev_priv(net); | |
ce85e13a | 1493 | struct phy_device *phydev = net->phydev; |
55d7de9d | 1494 | int ret; |
55d7de9d | 1495 | |
55d7de9d WH |
1496 | ret = usb_autopm_get_interface(dev->intf); |
1497 | if (ret < 0) | |
1498 | return ret; | |
1499 | ||
5514174f | 1500 | phy_ethtool_ksettings_get(phydev, cmd); |
55d7de9d | 1501 | |
55d7de9d WH |
1502 | usb_autopm_put_interface(dev->intf); |
1503 | ||
1504 | return ret; | |
1505 | } | |
1506 | ||
6e76510e PR |
1507 | static int lan78xx_set_link_ksettings(struct net_device *net, |
1508 | const struct ethtool_link_ksettings *cmd) | |
55d7de9d WH |
1509 | { |
1510 | struct lan78xx_net *dev = netdev_priv(net); | |
ce85e13a | 1511 | struct phy_device *phydev = net->phydev; |
55d7de9d WH |
1512 | int ret = 0; |
1513 | int temp; | |
1514 | ||
55d7de9d WH |
1515 | ret = usb_autopm_get_interface(dev->intf); |
1516 | if (ret < 0) | |
1517 | return ret; | |
1518 | ||
55d7de9d | 1519 | /* change speed & duplex */ |
6e76510e | 1520 | ret = phy_ethtool_ksettings_set(phydev, cmd); |
55d7de9d | 1521 | |
6e76510e | 1522 | if (!cmd->base.autoneg) { |
55d7de9d | 1523 | /* force link down */ |
ce85e13a WH |
1524 | temp = phy_read(phydev, MII_BMCR); |
1525 | phy_write(phydev, MII_BMCR, temp | BMCR_LOOPBACK); | |
55d7de9d | 1526 | mdelay(1); |
ce85e13a | 1527 | phy_write(phydev, MII_BMCR, temp); |
55d7de9d WH |
1528 | } |
1529 | ||
1530 | usb_autopm_put_interface(dev->intf); | |
1531 | ||
1532 | return ret; | |
1533 | } | |
1534 | ||
349e0c5e WH |
1535 | static void lan78xx_get_pause(struct net_device *net, |
1536 | struct ethtool_pauseparam *pause) | |
1537 | { | |
1538 | struct lan78xx_net *dev = netdev_priv(net); | |
1539 | struct phy_device *phydev = net->phydev; | |
6e76510e | 1540 | struct ethtool_link_ksettings ecmd; |
349e0c5e | 1541 | |
6e76510e | 1542 | phy_ethtool_ksettings_get(phydev, &ecmd); |
349e0c5e WH |
1543 | |
1544 | pause->autoneg = dev->fc_autoneg; | |
1545 | ||
1546 | if (dev->fc_request_control & FLOW_CTRL_TX) | |
1547 | pause->tx_pause = 1; | |
1548 | ||
1549 | if (dev->fc_request_control & FLOW_CTRL_RX) | |
1550 | pause->rx_pause = 1; | |
1551 | } | |
1552 | ||
1553 | static int lan78xx_set_pause(struct net_device *net, | |
1554 | struct ethtool_pauseparam *pause) | |
1555 | { | |
1556 | struct lan78xx_net *dev = netdev_priv(net); | |
1557 | struct phy_device *phydev = net->phydev; | |
6e76510e | 1558 | struct ethtool_link_ksettings ecmd; |
349e0c5e WH |
1559 | int ret; |
1560 | ||
6e76510e | 1561 | phy_ethtool_ksettings_get(phydev, &ecmd); |
349e0c5e | 1562 | |
6e76510e | 1563 | if (pause->autoneg && !ecmd.base.autoneg) { |
349e0c5e WH |
1564 | ret = -EINVAL; |
1565 | goto exit; | |
1566 | } | |
1567 | ||
1568 | dev->fc_request_control = 0; | |
1569 | if (pause->rx_pause) | |
1570 | dev->fc_request_control |= FLOW_CTRL_RX; | |
1571 | ||
1572 | if (pause->tx_pause) | |
1573 | dev->fc_request_control |= FLOW_CTRL_TX; | |
1574 | ||
6e76510e | 1575 | if (ecmd.base.autoneg) { |
349e0c5e | 1576 | u32 mii_adv; |
6e76510e PR |
1577 | u32 advertising; |
1578 | ||
1579 | ethtool_convert_link_mode_to_legacy_u32( | |
1580 | &advertising, ecmd.link_modes.advertising); | |
349e0c5e | 1581 | |
6e76510e | 1582 | advertising &= ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause); |
349e0c5e | 1583 | mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control); |
6e76510e PR |
1584 | advertising |= mii_adv_to_ethtool_adv_t(mii_adv); |
1585 | ||
1586 | ethtool_convert_legacy_u32_to_link_mode( | |
1587 | ecmd.link_modes.advertising, advertising); | |
1588 | ||
1589 | phy_ethtool_ksettings_set(phydev, &ecmd); | |
349e0c5e WH |
1590 | } |
1591 | ||
1592 | dev->fc_autoneg = pause->autoneg; | |
1593 | ||
1594 | ret = 0; | |
1595 | exit: | |
1596 | return ret; | |
1597 | } | |
1598 | ||
55d7de9d WH |
1599 | static const struct ethtool_ops lan78xx_ethtool_ops = { |
1600 | .get_link = lan78xx_get_link, | |
860ce4b4 | 1601 | .nway_reset = phy_ethtool_nway_reset, |
55d7de9d WH |
1602 | .get_drvinfo = lan78xx_get_drvinfo, |
1603 | .get_msglevel = lan78xx_get_msglevel, | |
1604 | .set_msglevel = lan78xx_set_msglevel, | |
55d7de9d WH |
1605 | .get_eeprom_len = lan78xx_ethtool_get_eeprom_len, |
1606 | .get_eeprom = lan78xx_ethtool_get_eeprom, | |
1607 | .set_eeprom = lan78xx_ethtool_set_eeprom, | |
1608 | .get_ethtool_stats = lan78xx_get_stats, | |
1609 | .get_sset_count = lan78xx_get_sset_count, | |
1610 | .get_strings = lan78xx_get_strings, | |
1611 | .get_wol = lan78xx_get_wol, | |
1612 | .set_wol = lan78xx_set_wol, | |
1613 | .get_eee = lan78xx_get_eee, | |
1614 | .set_eee = lan78xx_set_eee, | |
349e0c5e WH |
1615 | .get_pauseparam = lan78xx_get_pause, |
1616 | .set_pauseparam = lan78xx_set_pause, | |
6e76510e PR |
1617 | .get_link_ksettings = lan78xx_get_link_ksettings, |
1618 | .set_link_ksettings = lan78xx_set_link_ksettings, | |
55d7de9d WH |
1619 | }; |
1620 | ||
1621 | static int lan78xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) | |
1622 | { | |
55d7de9d WH |
1623 | if (!netif_running(netdev)) |
1624 | return -EINVAL; | |
1625 | ||
ce85e13a | 1626 | return phy_mii_ioctl(netdev->phydev, rq, cmd); |
55d7de9d WH |
1627 | } |
1628 | ||
1629 | static void lan78xx_init_mac_address(struct lan78xx_net *dev) | |
1630 | { | |
1631 | u32 addr_lo, addr_hi; | |
1632 | int ret; | |
1633 | u8 addr[6]; | |
70e97827 | 1634 | const u8 *mac_addr; |
55d7de9d WH |
1635 | |
1636 | ret = lan78xx_read_reg(dev, RX_ADDRL, &addr_lo); | |
1637 | ret = lan78xx_read_reg(dev, RX_ADDRH, &addr_hi); | |
1638 | ||
1639 | addr[0] = addr_lo & 0xFF; | |
1640 | addr[1] = (addr_lo >> 8) & 0xFF; | |
1641 | addr[2] = (addr_lo >> 16) & 0xFF; | |
1642 | addr[3] = (addr_lo >> 24) & 0xFF; | |
1643 | addr[4] = addr_hi & 0xFF; | |
1644 | addr[5] = (addr_hi >> 8) & 0xFF; | |
1645 | ||
1646 | if (!is_valid_ether_addr(addr)) { | |
70e97827 AF |
1647 | /* maybe the boot loader passed the MAC address in devicetree */ |
1648 | mac_addr = of_get_mac_address(dev->udev->dev.of_node); | |
1649 | if (mac_addr) memcpy(addr, mac_addr, ETH_ALEN); | |
1650 | if (is_valid_ether_addr(addr)) { | |
a4977f3e | 1651 | netif_dbg(dev, ifup, dev->net, |
70e97827 AF |
1652 | "MAC address read from devicetree"); |
1653 | } | |
1654 | ||
1655 | if (!is_valid_ether_addr(addr)) { | |
1656 | /* reading mac address from EEPROM or OTP */ | |
1657 | if ((lan78xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN, | |
1658 | addr) == 0) || | |
1659 | (lan78xx_read_otp(dev, EEPROM_MAC_OFFSET, ETH_ALEN, | |
1660 | addr) == 0)) { | |
1661 | if (is_valid_ether_addr(addr)) { | |
1662 | /* eeprom values are valid so use them */ | |
1663 | netif_dbg(dev, ifup, dev->net, | |
1664 | "MAC address read from EEPROM"); | |
1665 | } | |
1666 | } | |
1667 | } | |
1668 | ||
1669 | if (!is_valid_ether_addr(addr)) { | |
55d7de9d WH |
1670 | /* generate random MAC */ |
1671 | random_ether_addr(addr); | |
1672 | netif_dbg(dev, ifup, dev->net, | |
70e97827 | 1673 | "MAC address set to random addr"); |
55d7de9d | 1674 | } |
a4977f3e PE |
1675 | |
1676 | addr_lo = addr[0] | (addr[1] << 8) | | |
1677 | (addr[2] << 16) | (addr[3] << 24); | |
1678 | addr_hi = addr[4] | (addr[5] << 8); | |
1679 | ||
1680 | ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo); | |
1681 | ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi); | |
55d7de9d WH |
1682 | } |
1683 | ||
1684 | ret = lan78xx_write_reg(dev, MAF_LO(0), addr_lo); | |
1685 | ret = lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); | |
1686 | ||
1687 | ether_addr_copy(dev->net->dev_addr, addr); | |
1688 | } | |
1689 | ||
ce85e13a WH |
1690 | /* MDIO read and write wrappers for phylib */ |
1691 | static int lan78xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx) | |
1692 | { | |
1693 | struct lan78xx_net *dev = bus->priv; | |
1694 | u32 val, addr; | |
1695 | int ret; | |
1696 | ||
1697 | ret = usb_autopm_get_interface(dev->intf); | |
1698 | if (ret < 0) | |
1699 | return ret; | |
1700 | ||
1701 | mutex_lock(&dev->phy_mutex); | |
1702 | ||
1703 | /* confirm MII not busy */ | |
1704 | ret = lan78xx_phy_wait_not_busy(dev); | |
1705 | if (ret < 0) | |
1706 | goto done; | |
1707 | ||
1708 | /* set the address, index & direction (read from PHY) */ | |
1709 | addr = mii_access(phy_id, idx, MII_READ); | |
1710 | ret = lan78xx_write_reg(dev, MII_ACC, addr); | |
1711 | ||
1712 | ret = lan78xx_phy_wait_not_busy(dev); | |
1713 | if (ret < 0) | |
1714 | goto done; | |
1715 | ||
1716 | ret = lan78xx_read_reg(dev, MII_DATA, &val); | |
1717 | ||
1718 | ret = (int)(val & 0xFFFF); | |
1719 | ||
1720 | done: | |
1721 | mutex_unlock(&dev->phy_mutex); | |
1722 | usb_autopm_put_interface(dev->intf); | |
02dc1f3d | 1723 | |
ce85e13a WH |
1724 | return ret; |
1725 | } | |
1726 | ||
1727 | static int lan78xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx, | |
1728 | u16 regval) | |
1729 | { | |
1730 | struct lan78xx_net *dev = bus->priv; | |
1731 | u32 val, addr; | |
1732 | int ret; | |
1733 | ||
1734 | ret = usb_autopm_get_interface(dev->intf); | |
1735 | if (ret < 0) | |
1736 | return ret; | |
1737 | ||
1738 | mutex_lock(&dev->phy_mutex); | |
1739 | ||
1740 | /* confirm MII not busy */ | |
1741 | ret = lan78xx_phy_wait_not_busy(dev); | |
1742 | if (ret < 0) | |
1743 | goto done; | |
1744 | ||
1745 | val = (u32)regval; | |
1746 | ret = lan78xx_write_reg(dev, MII_DATA, val); | |
1747 | ||
1748 | /* set the address, index & direction (write to PHY) */ | |
1749 | addr = mii_access(phy_id, idx, MII_WRITE); | |
1750 | ret = lan78xx_write_reg(dev, MII_ACC, addr); | |
1751 | ||
1752 | ret = lan78xx_phy_wait_not_busy(dev); | |
1753 | if (ret < 0) | |
1754 | goto done; | |
1755 | ||
1756 | done: | |
1757 | mutex_unlock(&dev->phy_mutex); | |
1758 | usb_autopm_put_interface(dev->intf); | |
1759 | return 0; | |
1760 | } | |
1761 | ||
1762 | static int lan78xx_mdio_init(struct lan78xx_net *dev) | |
55d7de9d | 1763 | { |
ce85e13a | 1764 | int ret; |
ce85e13a WH |
1765 | |
1766 | dev->mdiobus = mdiobus_alloc(); | |
1767 | if (!dev->mdiobus) { | |
1768 | netdev_err(dev->net, "can't allocate MDIO bus\n"); | |
1769 | return -ENOMEM; | |
1770 | } | |
1771 | ||
1772 | dev->mdiobus->priv = (void *)dev; | |
1773 | dev->mdiobus->read = lan78xx_mdiobus_read; | |
1774 | dev->mdiobus->write = lan78xx_mdiobus_write; | |
1775 | dev->mdiobus->name = "lan78xx-mdiobus"; | |
1e125b01 | 1776 | dev->mdiobus->parent = &dev->udev->dev; |
ce85e13a WH |
1777 | |
1778 | snprintf(dev->mdiobus->id, MII_BUS_ID_SIZE, "usb-%03d:%03d", | |
1779 | dev->udev->bus->busnum, dev->udev->devnum); | |
1780 | ||
87177ba6 WH |
1781 | switch (dev->chipid) { |
1782 | case ID_REV_CHIP_ID_7800_: | |
1783 | case ID_REV_CHIP_ID_7850_: | |
ce85e13a WH |
1784 | /* set to internal PHY id */ |
1785 | dev->mdiobus->phy_mask = ~(1 << 1); | |
1786 | break; | |
02dc1f3d WH |
1787 | case ID_REV_CHIP_ID_7801_: |
1788 | /* scan thru PHYAD[2..0] */ | |
1789 | dev->mdiobus->phy_mask = ~(0xFF); | |
1790 | break; | |
ce85e13a WH |
1791 | } |
1792 | ||
1793 | ret = mdiobus_register(dev->mdiobus); | |
1794 | if (ret) { | |
1795 | netdev_err(dev->net, "can't register MDIO bus\n"); | |
e7f4dc35 | 1796 | goto exit1; |
ce85e13a WH |
1797 | } |
1798 | ||
1799 | netdev_dbg(dev->net, "registered mdiobus bus %s\n", dev->mdiobus->id); | |
1800 | return 0; | |
ce85e13a WH |
1801 | exit1: |
1802 | mdiobus_free(dev->mdiobus); | |
1803 | return ret; | |
1804 | } | |
1805 | ||
1806 | static void lan78xx_remove_mdio(struct lan78xx_net *dev) | |
1807 | { | |
1808 | mdiobus_unregister(dev->mdiobus); | |
ce85e13a WH |
1809 | mdiobus_free(dev->mdiobus); |
1810 | } | |
1811 | ||
1812 | static void lan78xx_link_status_change(struct net_device *net) | |
1813 | { | |
14437e3f WH |
1814 | struct phy_device *phydev = net->phydev; |
1815 | int ret, temp; | |
1816 | ||
1817 | /* At forced 100 F/H mode, chip may fail to set mode correctly | |
1818 | * when cable is switched between long(~50+m) and short one. | |
1819 | * As workaround, set to 10 before setting to 100 | |
1820 | * at forced 100 F/H mode. | |
1821 | */ | |
1822 | if (!phydev->autoneg && (phydev->speed == 100)) { | |
1823 | /* disable phy interrupt */ | |
1824 | temp = phy_read(phydev, LAN88XX_INT_MASK); | |
1825 | temp &= ~LAN88XX_INT_MASK_MDINTPIN_EN_; | |
1826 | ret = phy_write(phydev, LAN88XX_INT_MASK, temp); | |
1827 | ||
1828 | temp = phy_read(phydev, MII_BMCR); | |
1829 | temp &= ~(BMCR_SPEED100 | BMCR_SPEED1000); | |
1830 | phy_write(phydev, MII_BMCR, temp); /* set to 10 first */ | |
1831 | temp |= BMCR_SPEED100; | |
1832 | phy_write(phydev, MII_BMCR, temp); /* set to 100 later */ | |
1833 | ||
1834 | /* clear pending interrupt generated while workaround */ | |
1835 | temp = phy_read(phydev, LAN88XX_INT_STS); | |
1836 | ||
1837 | /* enable phy interrupt back */ | |
1838 | temp = phy_read(phydev, LAN88XX_INT_MASK); | |
1839 | temp |= LAN88XX_INT_MASK_MDINTPIN_EN_; | |
1840 | ret = phy_write(phydev, LAN88XX_INT_MASK, temp); | |
1841 | } | |
55d7de9d WH |
1842 | } |
1843 | ||
cc89c323 WH |
1844 | static int irq_map(struct irq_domain *d, unsigned int irq, |
1845 | irq_hw_number_t hwirq) | |
1846 | { | |
1847 | struct irq_domain_data *data = d->host_data; | |
1848 | ||
1849 | irq_set_chip_data(irq, data); | |
1850 | irq_set_chip_and_handler(irq, data->irqchip, data->irq_handler); | |
1851 | irq_set_noprobe(irq); | |
1852 | ||
1853 | return 0; | |
1854 | } | |
1855 | ||
1856 | static void irq_unmap(struct irq_domain *d, unsigned int irq) | |
1857 | { | |
1858 | irq_set_chip_and_handler(irq, NULL, NULL); | |
1859 | irq_set_chip_data(irq, NULL); | |
1860 | } | |
1861 | ||
1862 | static const struct irq_domain_ops chip_domain_ops = { | |
1863 | .map = irq_map, | |
1864 | .unmap = irq_unmap, | |
1865 | }; | |
1866 | ||
1867 | static void lan78xx_irq_mask(struct irq_data *irqd) | |
1868 | { | |
1869 | struct irq_domain_data *data = irq_data_get_irq_chip_data(irqd); | |
1870 | ||
1871 | data->irqenable &= ~BIT(irqd_to_hwirq(irqd)); | |
1872 | } | |
1873 | ||
1874 | static void lan78xx_irq_unmask(struct irq_data *irqd) | |
1875 | { | |
1876 | struct irq_domain_data *data = irq_data_get_irq_chip_data(irqd); | |
1877 | ||
1878 | data->irqenable |= BIT(irqd_to_hwirq(irqd)); | |
1879 | } | |
1880 | ||
1881 | static void lan78xx_irq_bus_lock(struct irq_data *irqd) | |
1882 | { | |
1883 | struct irq_domain_data *data = irq_data_get_irq_chip_data(irqd); | |
1884 | ||
1885 | mutex_lock(&data->irq_lock); | |
1886 | } | |
1887 | ||
1888 | static void lan78xx_irq_bus_sync_unlock(struct irq_data *irqd) | |
1889 | { | |
1890 | struct irq_domain_data *data = irq_data_get_irq_chip_data(irqd); | |
1891 | struct lan78xx_net *dev = | |
1892 | container_of(data, struct lan78xx_net, domain_data); | |
1893 | u32 buf; | |
1894 | int ret; | |
1895 | ||
1896 | /* call register access here because irq_bus_lock & irq_bus_sync_unlock | |
1897 | * are only two callbacks executed in non-atomic contex. | |
1898 | */ | |
1899 | ret = lan78xx_read_reg(dev, INT_EP_CTL, &buf); | |
1900 | if (buf != data->irqenable) | |
1901 | ret = lan78xx_write_reg(dev, INT_EP_CTL, data->irqenable); | |
1902 | ||
1903 | mutex_unlock(&data->irq_lock); | |
1904 | } | |
1905 | ||
1906 | static struct irq_chip lan78xx_irqchip = { | |
1907 | .name = "lan78xx-irqs", | |
1908 | .irq_mask = lan78xx_irq_mask, | |
1909 | .irq_unmask = lan78xx_irq_unmask, | |
1910 | .irq_bus_lock = lan78xx_irq_bus_lock, | |
1911 | .irq_bus_sync_unlock = lan78xx_irq_bus_sync_unlock, | |
1912 | }; | |
1913 | ||
1914 | static int lan78xx_setup_irq_domain(struct lan78xx_net *dev) | |
1915 | { | |
1916 | struct device_node *of_node; | |
1917 | struct irq_domain *irqdomain; | |
1918 | unsigned int irqmap = 0; | |
1919 | u32 buf; | |
1920 | int ret = 0; | |
1921 | ||
1922 | of_node = dev->udev->dev.parent->of_node; | |
1923 | ||
1924 | mutex_init(&dev->domain_data.irq_lock); | |
1925 | ||
1926 | lan78xx_read_reg(dev, INT_EP_CTL, &buf); | |
1927 | dev->domain_data.irqenable = buf; | |
1928 | ||
1929 | dev->domain_data.irqchip = &lan78xx_irqchip; | |
1930 | dev->domain_data.irq_handler = handle_simple_irq; | |
1931 | ||
1932 | irqdomain = irq_domain_add_simple(of_node, MAX_INT_EP, 0, | |
1933 | &chip_domain_ops, &dev->domain_data); | |
1934 | if (irqdomain) { | |
1935 | /* create mapping for PHY interrupt */ | |
1936 | irqmap = irq_create_mapping(irqdomain, INT_EP_PHY); | |
1937 | if (!irqmap) { | |
1938 | irq_domain_remove(irqdomain); | |
1939 | ||
1940 | irqdomain = NULL; | |
1941 | ret = -EINVAL; | |
1942 | } | |
1943 | } else { | |
1944 | ret = -EINVAL; | |
1945 | } | |
1946 | ||
1947 | dev->domain_data.irqdomain = irqdomain; | |
1948 | dev->domain_data.phyirq = irqmap; | |
1949 | ||
1950 | return ret; | |
1951 | } | |
1952 | ||
1953 | static void lan78xx_remove_irq_domain(struct lan78xx_net *dev) | |
1954 | { | |
1955 | if (dev->domain_data.phyirq > 0) { | |
1956 | irq_dispose_mapping(dev->domain_data.phyirq); | |
1957 | ||
1958 | if (dev->domain_data.irqdomain) | |
1959 | irq_domain_remove(dev->domain_data.irqdomain); | |
1960 | } | |
1961 | dev->domain_data.phyirq = 0; | |
1962 | dev->domain_data.irqdomain = NULL; | |
1963 | } | |
1964 | ||
02dc1f3d WH |
1965 | static int lan8835_fixup(struct phy_device *phydev) |
1966 | { | |
1967 | int buf; | |
1968 | int ret; | |
1969 | struct lan78xx_net *dev = netdev_priv(phydev->attached_dev); | |
1970 | ||
1971 | /* LED2/PME_N/IRQ_N/RGMII_ID pin to IRQ_N mode */ | |
5f613677 | 1972 | buf = phy_read_mmd(phydev, MDIO_MMD_PCS, 0x8010); |
02dc1f3d WH |
1973 | buf &= ~0x1800; |
1974 | buf |= 0x0800; | |
5f613677 | 1975 | phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8010, buf); |
02dc1f3d WH |
1976 | |
1977 | /* RGMII MAC TXC Delay Enable */ | |
1978 | ret = lan78xx_write_reg(dev, MAC_RGMII_ID, | |
1979 | MAC_RGMII_ID_TXC_DELAY_EN_); | |
1980 | ||
1981 | /* RGMII TX DLL Tune Adjust */ | |
1982 | ret = lan78xx_write_reg(dev, RGMII_TX_BYP_DLL, 0x3D00); | |
1983 | ||
1984 | dev->interface = PHY_INTERFACE_MODE_RGMII_TXID; | |
1985 | ||
1986 | return 1; | |
1987 | } | |
1988 | ||
1989 | static int ksz9031rnx_fixup(struct phy_device *phydev) | |
1990 | { | |
1991 | struct lan78xx_net *dev = netdev_priv(phydev->attached_dev); | |
1992 | ||
1993 | /* Micrel9301RNX PHY configuration */ | |
1994 | /* RGMII Control Signal Pad Skew */ | |
5f613677 | 1995 | phy_write_mmd(phydev, MDIO_MMD_WIS, 4, 0x0077); |
02dc1f3d | 1996 | /* RGMII RX Data Pad Skew */ |
5f613677 | 1997 | phy_write_mmd(phydev, MDIO_MMD_WIS, 5, 0x7777); |
02dc1f3d | 1998 | /* RGMII RX Clock Pad Skew */ |
5f613677 | 1999 | phy_write_mmd(phydev, MDIO_MMD_WIS, 8, 0x1FF); |
02dc1f3d WH |
2000 | |
2001 | dev->interface = PHY_INTERFACE_MODE_RGMII_RXID; | |
2002 | ||
2003 | return 1; | |
2004 | } | |
2005 | ||
55d7de9d WH |
2006 | static int lan78xx_phy_init(struct lan78xx_net *dev) |
2007 | { | |
ce85e13a | 2008 | int ret; |
349e0c5e | 2009 | u32 mii_adv; |
ce85e13a | 2010 | struct phy_device *phydev = dev->net->phydev; |
55d7de9d | 2011 | |
ce85e13a WH |
2012 | phydev = phy_find_first(dev->mdiobus); |
2013 | if (!phydev) { | |
2014 | netdev_err(dev->net, "no PHY found\n"); | |
2015 | return -EIO; | |
2016 | } | |
55d7de9d | 2017 | |
02dc1f3d WH |
2018 | if ((dev->chipid == ID_REV_CHIP_ID_7800_) || |
2019 | (dev->chipid == ID_REV_CHIP_ID_7850_)) { | |
2020 | phydev->is_internal = true; | |
2021 | dev->interface = PHY_INTERFACE_MODE_GMII; | |
2022 | ||
2023 | } else if (dev->chipid == ID_REV_CHIP_ID_7801_) { | |
2024 | if (!phydev->drv) { | |
2025 | netdev_err(dev->net, "no PHY driver found\n"); | |
2026 | return -EIO; | |
2027 | } | |
2028 | ||
2029 | dev->interface = PHY_INTERFACE_MODE_RGMII; | |
2030 | ||
2031 | /* external PHY fixup for KSZ9031RNX */ | |
2032 | ret = phy_register_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0, | |
2033 | ksz9031rnx_fixup); | |
2034 | if (ret < 0) { | |
2035 | netdev_err(dev->net, "fail to register fixup\n"); | |
2036 | return ret; | |
2037 | } | |
2038 | /* external PHY fixup for LAN8835 */ | |
2039 | ret = phy_register_fixup_for_uid(PHY_LAN8835, 0xfffffff0, | |
2040 | lan8835_fixup); | |
2041 | if (ret < 0) { | |
2042 | netdev_err(dev->net, "fail to register fixup\n"); | |
2043 | return ret; | |
2044 | } | |
2045 | /* add more external PHY fixup here if needed */ | |
2046 | ||
2047 | phydev->is_internal = false; | |
2048 | } else { | |
2049 | netdev_err(dev->net, "unknown ID found\n"); | |
2050 | ret = -EIO; | |
2051 | goto error; | |
2052 | } | |
2053 | ||
cc89c323 WH |
2054 | /* if phyirq is not set, use polling mode in phylib */ |
2055 | if (dev->domain_data.phyirq > 0) | |
2056 | phydev->irq = dev->domain_data.phyirq; | |
2057 | else | |
2058 | phydev->irq = 0; | |
2059 | netdev_dbg(dev->net, "phydev->irq = %d\n", phydev->irq); | |
e4953910 | 2060 | |
f6e3ef3e WH |
2061 | /* set to AUTOMDIX */ |
2062 | phydev->mdix = ETH_TP_MDI_AUTO; | |
2063 | ||
ce85e13a WH |
2064 | ret = phy_connect_direct(dev->net, phydev, |
2065 | lan78xx_link_status_change, | |
02dc1f3d | 2066 | dev->interface); |
ce85e13a WH |
2067 | if (ret) { |
2068 | netdev_err(dev->net, "can't attach PHY to %s\n", | |
2069 | dev->mdiobus->id); | |
2070 | return -EIO; | |
2071 | } | |
55d7de9d | 2072 | |
ce85e13a WH |
2073 | /* MAC doesn't support 1000T Half */ |
2074 | phydev->supported &= ~SUPPORTED_1000baseT_Half; | |
e270b2db | 2075 | |
349e0c5e WH |
2076 | /* support both flow controls */ |
2077 | dev->fc_request_control = (FLOW_CTRL_RX | FLOW_CTRL_TX); | |
2078 | phydev->advertising &= ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause); | |
2079 | mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control); | |
2080 | phydev->advertising |= mii_adv_to_ethtool_adv_t(mii_adv); | |
2081 | ||
ce85e13a WH |
2082 | genphy_config_aneg(phydev); |
2083 | ||
349e0c5e WH |
2084 | dev->fc_autoneg = phydev->autoneg; |
2085 | ||
55d7de9d | 2086 | return 0; |
02dc1f3d WH |
2087 | |
2088 | error: | |
2089 | phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0); | |
2090 | phy_unregister_fixup_for_uid(PHY_LAN8835, 0xfffffff0); | |
2091 | ||
2092 | return ret; | |
55d7de9d WH |
2093 | } |
2094 | ||
2095 | static int lan78xx_set_rx_max_frame_length(struct lan78xx_net *dev, int size) | |
2096 | { | |
2097 | int ret = 0; | |
2098 | u32 buf; | |
2099 | bool rxenabled; | |
2100 | ||
2101 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
2102 | ||
2103 | rxenabled = ((buf & MAC_RX_RXEN_) != 0); | |
2104 | ||
2105 | if (rxenabled) { | |
2106 | buf &= ~MAC_RX_RXEN_; | |
2107 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
2108 | } | |
2109 | ||
2110 | /* add 4 to size for FCS */ | |
2111 | buf &= ~MAC_RX_MAX_SIZE_MASK_; | |
2112 | buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT_) & MAC_RX_MAX_SIZE_MASK_); | |
2113 | ||
2114 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
2115 | ||
2116 | if (rxenabled) { | |
2117 | buf |= MAC_RX_RXEN_; | |
2118 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
2119 | } | |
2120 | ||
2121 | return 0; | |
2122 | } | |
2123 | ||
2124 | static int unlink_urbs(struct lan78xx_net *dev, struct sk_buff_head *q) | |
2125 | { | |
2126 | struct sk_buff *skb; | |
2127 | unsigned long flags; | |
2128 | int count = 0; | |
2129 | ||
2130 | spin_lock_irqsave(&q->lock, flags); | |
2131 | while (!skb_queue_empty(q)) { | |
2132 | struct skb_data *entry; | |
2133 | struct urb *urb; | |
2134 | int ret; | |
2135 | ||
2136 | skb_queue_walk(q, skb) { | |
2137 | entry = (struct skb_data *)skb->cb; | |
2138 | if (entry->state != unlink_start) | |
2139 | goto found; | |
2140 | } | |
2141 | break; | |
2142 | found: | |
2143 | entry->state = unlink_start; | |
2144 | urb = entry->urb; | |
2145 | ||
2146 | /* Get reference count of the URB to avoid it to be | |
2147 | * freed during usb_unlink_urb, which may trigger | |
2148 | * use-after-free problem inside usb_unlink_urb since | |
2149 | * usb_unlink_urb is always racing with .complete | |
2150 | * handler(include defer_bh). | |
2151 | */ | |
2152 | usb_get_urb(urb); | |
2153 | spin_unlock_irqrestore(&q->lock, flags); | |
2154 | /* during some PM-driven resume scenarios, | |
2155 | * these (async) unlinks complete immediately | |
2156 | */ | |
2157 | ret = usb_unlink_urb(urb); | |
2158 | if (ret != -EINPROGRESS && ret != 0) | |
2159 | netdev_dbg(dev->net, "unlink urb err, %d\n", ret); | |
2160 | else | |
2161 | count++; | |
2162 | usb_put_urb(urb); | |
2163 | spin_lock_irqsave(&q->lock, flags); | |
2164 | } | |
2165 | spin_unlock_irqrestore(&q->lock, flags); | |
2166 | return count; | |
2167 | } | |
2168 | ||
2169 | static int lan78xx_change_mtu(struct net_device *netdev, int new_mtu) | |
2170 | { | |
2171 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2172 | int ll_mtu = new_mtu + netdev->hard_header_len; | |
2173 | int old_hard_mtu = dev->hard_mtu; | |
2174 | int old_rx_urb_size = dev->rx_urb_size; | |
2175 | int ret; | |
2176 | ||
55d7de9d WH |
2177 | /* no second zero-length packet read wanted after mtu-sized packets */ |
2178 | if ((ll_mtu % dev->maxpacket) == 0) | |
2179 | return -EDOM; | |
2180 | ||
2181 | ret = lan78xx_set_rx_max_frame_length(dev, new_mtu + ETH_HLEN); | |
2182 | ||
2183 | netdev->mtu = new_mtu; | |
2184 | ||
2185 | dev->hard_mtu = netdev->mtu + netdev->hard_header_len; | |
2186 | if (dev->rx_urb_size == old_hard_mtu) { | |
2187 | dev->rx_urb_size = dev->hard_mtu; | |
2188 | if (dev->rx_urb_size > old_rx_urb_size) { | |
2189 | if (netif_running(dev->net)) { | |
2190 | unlink_urbs(dev, &dev->rxq); | |
2191 | tasklet_schedule(&dev->bh); | |
2192 | } | |
2193 | } | |
2194 | } | |
2195 | ||
2196 | return 0; | |
2197 | } | |
2198 | ||
e0c79ff6 | 2199 | static int lan78xx_set_mac_addr(struct net_device *netdev, void *p) |
55d7de9d WH |
2200 | { |
2201 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2202 | struct sockaddr *addr = p; | |
2203 | u32 addr_lo, addr_hi; | |
2204 | int ret; | |
2205 | ||
2206 | if (netif_running(netdev)) | |
2207 | return -EBUSY; | |
2208 | ||
2209 | if (!is_valid_ether_addr(addr->sa_data)) | |
2210 | return -EADDRNOTAVAIL; | |
2211 | ||
2212 | ether_addr_copy(netdev->dev_addr, addr->sa_data); | |
2213 | ||
2214 | addr_lo = netdev->dev_addr[0] | | |
2215 | netdev->dev_addr[1] << 8 | | |
2216 | netdev->dev_addr[2] << 16 | | |
2217 | netdev->dev_addr[3] << 24; | |
2218 | addr_hi = netdev->dev_addr[4] | | |
2219 | netdev->dev_addr[5] << 8; | |
2220 | ||
2221 | ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo); | |
2222 | ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi); | |
2223 | ||
9c5239ee JM |
2224 | /* Added to support MAC address changes */ |
2225 | ret = lan78xx_write_reg(dev, MAF_LO(0), addr_lo); | |
2226 | ret = lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); | |
2227 | ||
55d7de9d WH |
2228 | return 0; |
2229 | } | |
2230 | ||
2231 | /* Enable or disable Rx checksum offload engine */ | |
2232 | static int lan78xx_set_features(struct net_device *netdev, | |
2233 | netdev_features_t features) | |
2234 | { | |
2235 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2236 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2237 | unsigned long flags; | |
2238 | int ret; | |
2239 | ||
2240 | spin_lock_irqsave(&pdata->rfe_ctl_lock, flags); | |
2241 | ||
2242 | if (features & NETIF_F_RXCSUM) { | |
2243 | pdata->rfe_ctl |= RFE_CTL_TCPUDP_COE_ | RFE_CTL_IP_COE_; | |
2244 | pdata->rfe_ctl |= RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_; | |
2245 | } else { | |
2246 | pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_COE_ | RFE_CTL_IP_COE_); | |
2247 | pdata->rfe_ctl &= ~(RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_); | |
2248 | } | |
2249 | ||
2250 | if (features & NETIF_F_HW_VLAN_CTAG_RX) | |
2251 | pdata->rfe_ctl |= RFE_CTL_VLAN_FILTER_; | |
2252 | else | |
2253 | pdata->rfe_ctl &= ~RFE_CTL_VLAN_FILTER_; | |
2254 | ||
2255 | spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); | |
2256 | ||
2257 | ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); | |
2258 | ||
2259 | return 0; | |
2260 | } | |
2261 | ||
2262 | static void lan78xx_deferred_vlan_write(struct work_struct *param) | |
2263 | { | |
2264 | struct lan78xx_priv *pdata = | |
2265 | container_of(param, struct lan78xx_priv, set_vlan); | |
2266 | struct lan78xx_net *dev = pdata->dev; | |
2267 | ||
2268 | lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, 0, | |
2269 | DP_SEL_VHF_VLAN_LEN, pdata->vlan_table); | |
2270 | } | |
2271 | ||
2272 | static int lan78xx_vlan_rx_add_vid(struct net_device *netdev, | |
2273 | __be16 proto, u16 vid) | |
2274 | { | |
2275 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2276 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2277 | u16 vid_bit_index; | |
2278 | u16 vid_dword_index; | |
2279 | ||
2280 | vid_dword_index = (vid >> 5) & 0x7F; | |
2281 | vid_bit_index = vid & 0x1F; | |
2282 | ||
2283 | pdata->vlan_table[vid_dword_index] |= (1 << vid_bit_index); | |
2284 | ||
2285 | /* defer register writes to a sleepable context */ | |
2286 | schedule_work(&pdata->set_vlan); | |
2287 | ||
2288 | return 0; | |
2289 | } | |
2290 | ||
2291 | static int lan78xx_vlan_rx_kill_vid(struct net_device *netdev, | |
2292 | __be16 proto, u16 vid) | |
2293 | { | |
2294 | struct lan78xx_net *dev = netdev_priv(netdev); | |
2295 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2296 | u16 vid_bit_index; | |
2297 | u16 vid_dword_index; | |
2298 | ||
2299 | vid_dword_index = (vid >> 5) & 0x7F; | |
2300 | vid_bit_index = vid & 0x1F; | |
2301 | ||
2302 | pdata->vlan_table[vid_dword_index] &= ~(1 << vid_bit_index); | |
2303 | ||
2304 | /* defer register writes to a sleepable context */ | |
2305 | schedule_work(&pdata->set_vlan); | |
2306 | ||
2307 | return 0; | |
2308 | } | |
2309 | ||
2310 | static void lan78xx_init_ltm(struct lan78xx_net *dev) | |
2311 | { | |
2312 | int ret; | |
2313 | u32 buf; | |
2314 | u32 regs[6] = { 0 }; | |
2315 | ||
2316 | ret = lan78xx_read_reg(dev, USB_CFG1, &buf); | |
2317 | if (buf & USB_CFG1_LTM_ENABLE_) { | |
2318 | u8 temp[2]; | |
2319 | /* Get values from EEPROM first */ | |
2320 | if (lan78xx_read_eeprom(dev, 0x3F, 2, temp) == 0) { | |
2321 | if (temp[0] == 24) { | |
2322 | ret = lan78xx_read_raw_eeprom(dev, | |
2323 | temp[1] * 2, | |
2324 | 24, | |
2325 | (u8 *)regs); | |
2326 | if (ret < 0) | |
2327 | return; | |
2328 | } | |
2329 | } else if (lan78xx_read_otp(dev, 0x3F, 2, temp) == 0) { | |
2330 | if (temp[0] == 24) { | |
2331 | ret = lan78xx_read_raw_otp(dev, | |
2332 | temp[1] * 2, | |
2333 | 24, | |
2334 | (u8 *)regs); | |
2335 | if (ret < 0) | |
2336 | return; | |
2337 | } | |
2338 | } | |
2339 | } | |
2340 | ||
2341 | lan78xx_write_reg(dev, LTM_BELT_IDLE0, regs[0]); | |
2342 | lan78xx_write_reg(dev, LTM_BELT_IDLE1, regs[1]); | |
2343 | lan78xx_write_reg(dev, LTM_BELT_ACT0, regs[2]); | |
2344 | lan78xx_write_reg(dev, LTM_BELT_ACT1, regs[3]); | |
2345 | lan78xx_write_reg(dev, LTM_INACTIVE0, regs[4]); | |
2346 | lan78xx_write_reg(dev, LTM_INACTIVE1, regs[5]); | |
2347 | } | |
2348 | ||
2349 | static int lan78xx_reset(struct lan78xx_net *dev) | |
2350 | { | |
2351 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2352 | u32 buf; | |
2353 | int ret = 0; | |
2354 | unsigned long timeout; | |
e78be20d | 2355 | u8 sig; |
55d7de9d WH |
2356 | |
2357 | ret = lan78xx_read_reg(dev, HW_CFG, &buf); | |
2358 | buf |= HW_CFG_LRST_; | |
2359 | ret = lan78xx_write_reg(dev, HW_CFG, buf); | |
2360 | ||
2361 | timeout = jiffies + HZ; | |
2362 | do { | |
2363 | mdelay(1); | |
2364 | ret = lan78xx_read_reg(dev, HW_CFG, &buf); | |
2365 | if (time_after(jiffies, timeout)) { | |
2366 | netdev_warn(dev->net, | |
2367 | "timeout on completion of LiteReset"); | |
2368 | return -EIO; | |
2369 | } | |
2370 | } while (buf & HW_CFG_LRST_); | |
2371 | ||
2372 | lan78xx_init_mac_address(dev); | |
2373 | ||
ce85e13a WH |
2374 | /* save DEVID for later usage */ |
2375 | ret = lan78xx_read_reg(dev, ID_REV, &buf); | |
87177ba6 WH |
2376 | dev->chipid = (buf & ID_REV_CHIP_ID_MASK_) >> 16; |
2377 | dev->chiprev = buf & ID_REV_CHIP_REV_MASK_; | |
ce85e13a | 2378 | |
55d7de9d WH |
2379 | /* Respond to the IN token with a NAK */ |
2380 | ret = lan78xx_read_reg(dev, USB_CFG0, &buf); | |
2381 | buf |= USB_CFG_BIR_; | |
2382 | ret = lan78xx_write_reg(dev, USB_CFG0, buf); | |
2383 | ||
2384 | /* Init LTM */ | |
2385 | lan78xx_init_ltm(dev); | |
2386 | ||
55d7de9d WH |
2387 | if (dev->udev->speed == USB_SPEED_SUPER) { |
2388 | buf = DEFAULT_BURST_CAP_SIZE / SS_USB_PKT_SIZE; | |
2389 | dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; | |
2390 | dev->rx_qlen = 4; | |
2391 | dev->tx_qlen = 4; | |
2392 | } else if (dev->udev->speed == USB_SPEED_HIGH) { | |
2393 | buf = DEFAULT_BURST_CAP_SIZE / HS_USB_PKT_SIZE; | |
2394 | dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; | |
2395 | dev->rx_qlen = RX_MAX_QUEUE_MEMORY / dev->rx_urb_size; | |
2396 | dev->tx_qlen = RX_MAX_QUEUE_MEMORY / dev->hard_mtu; | |
2397 | } else { | |
2398 | buf = DEFAULT_BURST_CAP_SIZE / FS_USB_PKT_SIZE; | |
2399 | dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; | |
2400 | dev->rx_qlen = 4; | |
2afdce2c | 2401 | dev->tx_qlen = 4; |
55d7de9d WH |
2402 | } |
2403 | ||
2404 | ret = lan78xx_write_reg(dev, BURST_CAP, buf); | |
2405 | ret = lan78xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY); | |
2406 | ||
2407 | ret = lan78xx_read_reg(dev, HW_CFG, &buf); | |
2408 | buf |= HW_CFG_MEF_; | |
2409 | ret = lan78xx_write_reg(dev, HW_CFG, buf); | |
2410 | ||
2411 | ret = lan78xx_read_reg(dev, USB_CFG0, &buf); | |
2412 | buf |= USB_CFG_BCE_; | |
2413 | ret = lan78xx_write_reg(dev, USB_CFG0, buf); | |
2414 | ||
2415 | /* set FIFO sizes */ | |
2416 | buf = (MAX_RX_FIFO_SIZE - 512) / 512; | |
2417 | ret = lan78xx_write_reg(dev, FCT_RX_FIFO_END, buf); | |
2418 | ||
2419 | buf = (MAX_TX_FIFO_SIZE - 512) / 512; | |
2420 | ret = lan78xx_write_reg(dev, FCT_TX_FIFO_END, buf); | |
2421 | ||
2422 | ret = lan78xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_); | |
2423 | ret = lan78xx_write_reg(dev, FLOW, 0); | |
2424 | ret = lan78xx_write_reg(dev, FCT_FLOW, 0); | |
2425 | ||
2426 | /* Don't need rfe_ctl_lock during initialisation */ | |
2427 | ret = lan78xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl); | |
2428 | pdata->rfe_ctl |= RFE_CTL_BCAST_EN_ | RFE_CTL_DA_PERFECT_; | |
2429 | ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); | |
2430 | ||
2431 | /* Enable or disable checksum offload engines */ | |
2432 | lan78xx_set_features(dev->net, dev->net->features); | |
2433 | ||
2434 | lan78xx_set_multicast(dev->net); | |
2435 | ||
2436 | /* reset PHY */ | |
2437 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
2438 | buf |= PMT_CTL_PHY_RST_; | |
2439 | ret = lan78xx_write_reg(dev, PMT_CTL, buf); | |
2440 | ||
2441 | timeout = jiffies + HZ; | |
2442 | do { | |
2443 | mdelay(1); | |
2444 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
2445 | if (time_after(jiffies, timeout)) { | |
2446 | netdev_warn(dev->net, "timeout waiting for PHY Reset"); | |
2447 | return -EIO; | |
2448 | } | |
6c595b03 | 2449 | } while ((buf & PMT_CTL_PHY_RST_) || !(buf & PMT_CTL_READY_)); |
55d7de9d | 2450 | |
55d7de9d | 2451 | ret = lan78xx_read_reg(dev, MAC_CR, &buf); |
02dc1f3d WH |
2452 | /* LAN7801 only has RGMII mode */ |
2453 | if (dev->chipid == ID_REV_CHIP_ID_7801_) | |
2454 | buf &= ~MAC_CR_GMII_EN_; | |
e78be20d RC |
2455 | |
2456 | if (dev->chipid == ID_REV_CHIP_ID_7800_) { | |
2457 | ret = lan78xx_read_raw_eeprom(dev, 0, 1, &sig); | |
2458 | if (!ret && sig != EEPROM_INDICATOR) { | |
2459 | /* Implies there is no external eeprom. Set mac speed */ | |
2460 | netdev_info(dev->net, "No External EEPROM. Setting MAC Speed\n"); | |
2461 | buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_; | |
2462 | } | |
2463 | } | |
55d7de9d WH |
2464 | ret = lan78xx_write_reg(dev, MAC_CR, buf); |
2465 | ||
55d7de9d WH |
2466 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); |
2467 | buf |= MAC_TX_TXEN_; | |
2468 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
2469 | ||
2470 | ret = lan78xx_read_reg(dev, FCT_TX_CTL, &buf); | |
2471 | buf |= FCT_TX_CTL_EN_; | |
2472 | ret = lan78xx_write_reg(dev, FCT_TX_CTL, buf); | |
2473 | ||
2474 | ret = lan78xx_set_rx_max_frame_length(dev, dev->net->mtu + ETH_HLEN); | |
2475 | ||
2476 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
2477 | buf |= MAC_RX_RXEN_; | |
2478 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
2479 | ||
2480 | ret = lan78xx_read_reg(dev, FCT_RX_CTL, &buf); | |
2481 | buf |= FCT_RX_CTL_EN_; | |
2482 | ret = lan78xx_write_reg(dev, FCT_RX_CTL, buf); | |
2483 | ||
55d7de9d WH |
2484 | return 0; |
2485 | } | |
2486 | ||
20ff5565 WH |
2487 | static void lan78xx_init_stats(struct lan78xx_net *dev) |
2488 | { | |
2489 | u32 *p; | |
2490 | int i; | |
2491 | ||
2492 | /* initialize for stats update | |
2493 | * some counters are 20bits and some are 32bits | |
2494 | */ | |
2495 | p = (u32 *)&dev->stats.rollover_max; | |
2496 | for (i = 0; i < (sizeof(dev->stats.rollover_max) / (sizeof(u32))); i++) | |
2497 | p[i] = 0xFFFFF; | |
2498 | ||
2499 | dev->stats.rollover_max.rx_unicast_byte_count = 0xFFFFFFFF; | |
2500 | dev->stats.rollover_max.rx_broadcast_byte_count = 0xFFFFFFFF; | |
2501 | dev->stats.rollover_max.rx_multicast_byte_count = 0xFFFFFFFF; | |
2502 | dev->stats.rollover_max.eee_rx_lpi_transitions = 0xFFFFFFFF; | |
2503 | dev->stats.rollover_max.eee_rx_lpi_time = 0xFFFFFFFF; | |
2504 | dev->stats.rollover_max.tx_unicast_byte_count = 0xFFFFFFFF; | |
2505 | dev->stats.rollover_max.tx_broadcast_byte_count = 0xFFFFFFFF; | |
2506 | dev->stats.rollover_max.tx_multicast_byte_count = 0xFFFFFFFF; | |
2507 | dev->stats.rollover_max.eee_tx_lpi_transitions = 0xFFFFFFFF; | |
2508 | dev->stats.rollover_max.eee_tx_lpi_time = 0xFFFFFFFF; | |
2509 | ||
0f02f2a5 | 2510 | set_bit(EVENT_STAT_UPDATE, &dev->flags); |
20ff5565 WH |
2511 | } |
2512 | ||
55d7de9d WH |
2513 | static int lan78xx_open(struct net_device *net) |
2514 | { | |
2515 | struct lan78xx_net *dev = netdev_priv(net); | |
2516 | int ret; | |
2517 | ||
2518 | ret = usb_autopm_get_interface(dev->intf); | |
2519 | if (ret < 0) | |
2520 | goto out; | |
2521 | ||
6d03ff16 AG |
2522 | phy_start(net->phydev); |
2523 | ||
2524 | netif_dbg(dev, ifup, dev->net, "phy initialised successfully"); | |
ce85e13a | 2525 | |
55d7de9d WH |
2526 | /* for Link Check */ |
2527 | if (dev->urb_intr) { | |
2528 | ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL); | |
2529 | if (ret < 0) { | |
2530 | netif_err(dev, ifup, dev->net, | |
2531 | "intr submit %d\n", ret); | |
2532 | goto done; | |
2533 | } | |
2534 | } | |
2535 | ||
20ff5565 WH |
2536 | lan78xx_init_stats(dev); |
2537 | ||
55d7de9d WH |
2538 | set_bit(EVENT_DEV_OPEN, &dev->flags); |
2539 | ||
2540 | netif_start_queue(net); | |
2541 | ||
2542 | dev->link_on = false; | |
2543 | ||
2544 | lan78xx_defer_kevent(dev, EVENT_LINK_RESET); | |
2545 | done: | |
2546 | usb_autopm_put_interface(dev->intf); | |
2547 | ||
2548 | out: | |
2549 | return ret; | |
2550 | } | |
2551 | ||
2552 | static void lan78xx_terminate_urbs(struct lan78xx_net *dev) | |
2553 | { | |
2554 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup); | |
2555 | DECLARE_WAITQUEUE(wait, current); | |
2556 | int temp; | |
2557 | ||
2558 | /* ensure there are no more active urbs */ | |
2559 | add_wait_queue(&unlink_wakeup, &wait); | |
2560 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2561 | dev->wait = &unlink_wakeup; | |
2562 | temp = unlink_urbs(dev, &dev->txq) + unlink_urbs(dev, &dev->rxq); | |
2563 | ||
2564 | /* maybe wait for deletions to finish. */ | |
2565 | while (!skb_queue_empty(&dev->rxq) && | |
2566 | !skb_queue_empty(&dev->txq) && | |
2567 | !skb_queue_empty(&dev->done)) { | |
2568 | schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); | |
2569 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2570 | netif_dbg(dev, ifdown, dev->net, | |
2571 | "waited for %d urb completions\n", temp); | |
2572 | } | |
2573 | set_current_state(TASK_RUNNING); | |
2574 | dev->wait = NULL; | |
2575 | remove_wait_queue(&unlink_wakeup, &wait); | |
2576 | } | |
2577 | ||
e0c79ff6 | 2578 | static int lan78xx_stop(struct net_device *net) |
55d7de9d WH |
2579 | { |
2580 | struct lan78xx_net *dev = netdev_priv(net); | |
2581 | ||
20ff5565 WH |
2582 | if (timer_pending(&dev->stat_monitor)) |
2583 | del_timer_sync(&dev->stat_monitor); | |
2584 | ||
6d03ff16 AG |
2585 | if (net->phydev) |
2586 | phy_stop(net->phydev); | |
ce85e13a | 2587 | |
55d7de9d WH |
2588 | clear_bit(EVENT_DEV_OPEN, &dev->flags); |
2589 | netif_stop_queue(net); | |
2590 | ||
2591 | netif_info(dev, ifdown, dev->net, | |
2592 | "stop stats: rx/tx %lu/%lu, errs %lu/%lu\n", | |
2593 | net->stats.rx_packets, net->stats.tx_packets, | |
2594 | net->stats.rx_errors, net->stats.tx_errors); | |
2595 | ||
2596 | lan78xx_terminate_urbs(dev); | |
2597 | ||
2598 | usb_kill_urb(dev->urb_intr); | |
2599 | ||
2600 | skb_queue_purge(&dev->rxq_pause); | |
2601 | ||
2602 | /* deferred work (task, timer, softirq) must also stop. | |
2603 | * can't flush_scheduled_work() until we drop rtnl (later), | |
2604 | * else workers could deadlock; so make workers a NOP. | |
2605 | */ | |
2606 | dev->flags = 0; | |
2607 | cancel_delayed_work_sync(&dev->wq); | |
2608 | tasklet_kill(&dev->bh); | |
2609 | ||
2610 | usb_autopm_put_interface(dev->intf); | |
2611 | ||
2612 | return 0; | |
2613 | } | |
2614 | ||
55d7de9d WH |
2615 | static struct sk_buff *lan78xx_tx_prep(struct lan78xx_net *dev, |
2616 | struct sk_buff *skb, gfp_t flags) | |
2617 | { | |
2618 | u32 tx_cmd_a, tx_cmd_b; | |
2619 | ||
d4ca7359 | 2620 | if (skb_cow_head(skb, TX_OVERHEAD)) { |
55d7de9d | 2621 | dev_kfree_skb_any(skb); |
d4ca7359 | 2622 | return NULL; |
55d7de9d WH |
2623 | } |
2624 | ||
a4533502 ED |
2625 | if (skb_linearize(skb)) { |
2626 | dev_kfree_skb_any(skb); | |
55d7de9d | 2627 | return NULL; |
a4533502 | 2628 | } |
55d7de9d WH |
2629 | |
2630 | tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN_MASK_) | TX_CMD_A_FCS_; | |
2631 | ||
2632 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2633 | tx_cmd_a |= TX_CMD_A_IPE_ | TX_CMD_A_TPE_; | |
2634 | ||
2635 | tx_cmd_b = 0; | |
2636 | if (skb_is_gso(skb)) { | |
2637 | u16 mss = max(skb_shinfo(skb)->gso_size, TX_CMD_B_MSS_MIN_); | |
2638 | ||
2639 | tx_cmd_b = (mss << TX_CMD_B_MSS_SHIFT_) & TX_CMD_B_MSS_MASK_; | |
2640 | ||
2641 | tx_cmd_a |= TX_CMD_A_LSO_; | |
2642 | } | |
2643 | ||
2644 | if (skb_vlan_tag_present(skb)) { | |
2645 | tx_cmd_a |= TX_CMD_A_IVTG_; | |
2646 | tx_cmd_b |= skb_vlan_tag_get(skb) & TX_CMD_B_VTAG_MASK_; | |
2647 | } | |
2648 | ||
2649 | skb_push(skb, 4); | |
2650 | cpu_to_le32s(&tx_cmd_b); | |
2651 | memcpy(skb->data, &tx_cmd_b, 4); | |
2652 | ||
2653 | skb_push(skb, 4); | |
2654 | cpu_to_le32s(&tx_cmd_a); | |
2655 | memcpy(skb->data, &tx_cmd_a, 4); | |
2656 | ||
2657 | return skb; | |
2658 | } | |
2659 | ||
2660 | static enum skb_state defer_bh(struct lan78xx_net *dev, struct sk_buff *skb, | |
2661 | struct sk_buff_head *list, enum skb_state state) | |
2662 | { | |
2663 | unsigned long flags; | |
2664 | enum skb_state old_state; | |
2665 | struct skb_data *entry = (struct skb_data *)skb->cb; | |
2666 | ||
2667 | spin_lock_irqsave(&list->lock, flags); | |
2668 | old_state = entry->state; | |
2669 | entry->state = state; | |
55d7de9d WH |
2670 | |
2671 | __skb_unlink(skb, list); | |
2672 | spin_unlock(&list->lock); | |
2673 | spin_lock(&dev->done.lock); | |
55d7de9d WH |
2674 | |
2675 | __skb_queue_tail(&dev->done, skb); | |
2676 | if (skb_queue_len(&dev->done) == 1) | |
2677 | tasklet_schedule(&dev->bh); | |
2678 | spin_unlock_irqrestore(&dev->done.lock, flags); | |
2679 | ||
2680 | return old_state; | |
2681 | } | |
2682 | ||
2683 | static void tx_complete(struct urb *urb) | |
2684 | { | |
2685 | struct sk_buff *skb = (struct sk_buff *)urb->context; | |
2686 | struct skb_data *entry = (struct skb_data *)skb->cb; | |
2687 | struct lan78xx_net *dev = entry->dev; | |
2688 | ||
2689 | if (urb->status == 0) { | |
74d79a2e | 2690 | dev->net->stats.tx_packets += entry->num_of_packet; |
55d7de9d WH |
2691 | dev->net->stats.tx_bytes += entry->length; |
2692 | } else { | |
2693 | dev->net->stats.tx_errors++; | |
2694 | ||
2695 | switch (urb->status) { | |
2696 | case -EPIPE: | |
2697 | lan78xx_defer_kevent(dev, EVENT_TX_HALT); | |
2698 | break; | |
2699 | ||
2700 | /* software-driven interface shutdown */ | |
2701 | case -ECONNRESET: | |
2702 | case -ESHUTDOWN: | |
2703 | break; | |
2704 | ||
2705 | case -EPROTO: | |
2706 | case -ETIME: | |
2707 | case -EILSEQ: | |
2708 | netif_stop_queue(dev->net); | |
2709 | break; | |
2710 | default: | |
2711 | netif_dbg(dev, tx_err, dev->net, | |
2712 | "tx err %d\n", entry->urb->status); | |
2713 | break; | |
2714 | } | |
2715 | } | |
2716 | ||
2717 | usb_autopm_put_interface_async(dev->intf); | |
2718 | ||
81c38e81 | 2719 | defer_bh(dev, skb, &dev->txq, tx_done); |
55d7de9d WH |
2720 | } |
2721 | ||
2722 | static void lan78xx_queue_skb(struct sk_buff_head *list, | |
2723 | struct sk_buff *newsk, enum skb_state state) | |
2724 | { | |
2725 | struct skb_data *entry = (struct skb_data *)newsk->cb; | |
2726 | ||
2727 | __skb_queue_tail(list, newsk); | |
2728 | entry->state = state; | |
2729 | } | |
2730 | ||
e0c79ff6 BX |
2731 | static netdev_tx_t |
2732 | lan78xx_start_xmit(struct sk_buff *skb, struct net_device *net) | |
55d7de9d WH |
2733 | { |
2734 | struct lan78xx_net *dev = netdev_priv(net); | |
81c38e81 | 2735 | struct sk_buff *skb2 = NULL; |
55d7de9d | 2736 | |
81c38e81 | 2737 | if (skb) { |
55d7de9d | 2738 | skb_tx_timestamp(skb); |
81c38e81 WH |
2739 | skb2 = lan78xx_tx_prep(dev, skb, GFP_ATOMIC); |
2740 | } | |
55d7de9d | 2741 | |
81c38e81 WH |
2742 | if (skb2) { |
2743 | skb_queue_tail(&dev->txq_pend, skb2); | |
55d7de9d | 2744 | |
4b2a4a96 WH |
2745 | /* throttle TX patch at slower than SUPER SPEED USB */ |
2746 | if ((dev->udev->speed < USB_SPEED_SUPER) && | |
2747 | (skb_queue_len(&dev->txq_pend) > 10)) | |
55d7de9d WH |
2748 | netif_stop_queue(net); |
2749 | } else { | |
2750 | netif_dbg(dev, tx_err, dev->net, | |
2751 | "lan78xx_tx_prep return NULL\n"); | |
2752 | dev->net->stats.tx_errors++; | |
2753 | dev->net->stats.tx_dropped++; | |
2754 | } | |
2755 | ||
2756 | tasklet_schedule(&dev->bh); | |
2757 | ||
2758 | return NETDEV_TX_OK; | |
2759 | } | |
2760 | ||
55d7de9d WH |
2761 | static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf) |
2762 | { | |
2763 | struct lan78xx_priv *pdata = NULL; | |
2764 | int ret; | |
2765 | int i; | |
2766 | ||
55d7de9d WH |
2767 | dev->data[0] = (unsigned long)kzalloc(sizeof(*pdata), GFP_KERNEL); |
2768 | ||
2769 | pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2770 | if (!pdata) { | |
2771 | netdev_warn(dev->net, "Unable to allocate lan78xx_priv"); | |
2772 | return -ENOMEM; | |
2773 | } | |
2774 | ||
2775 | pdata->dev = dev; | |
2776 | ||
2777 | spin_lock_init(&pdata->rfe_ctl_lock); | |
2778 | mutex_init(&pdata->dataport_mutex); | |
2779 | ||
2780 | INIT_WORK(&pdata->set_multicast, lan78xx_deferred_multicast_write); | |
2781 | ||
2782 | for (i = 0; i < DP_SEL_VHF_VLAN_LEN; i++) | |
2783 | pdata->vlan_table[i] = 0; | |
2784 | ||
2785 | INIT_WORK(&pdata->set_vlan, lan78xx_deferred_vlan_write); | |
2786 | ||
2787 | dev->net->features = 0; | |
2788 | ||
2789 | if (DEFAULT_TX_CSUM_ENABLE) | |
2790 | dev->net->features |= NETIF_F_HW_CSUM; | |
2791 | ||
2792 | if (DEFAULT_RX_CSUM_ENABLE) | |
2793 | dev->net->features |= NETIF_F_RXCSUM; | |
2794 | ||
2795 | if (DEFAULT_TSO_CSUM_ENABLE) | |
2796 | dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_SG; | |
2797 | ||
2798 | dev->net->hw_features = dev->net->features; | |
2799 | ||
cc89c323 WH |
2800 | ret = lan78xx_setup_irq_domain(dev); |
2801 | if (ret < 0) { | |
2802 | netdev_warn(dev->net, | |
2803 | "lan78xx_setup_irq_domain() failed : %d", ret); | |
629eeaac | 2804 | goto out1; |
cc89c323 WH |
2805 | } |
2806 | ||
0573f94b NS |
2807 | dev->net->hard_header_len += TX_OVERHEAD; |
2808 | dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; | |
2809 | ||
55d7de9d WH |
2810 | /* Init all registers */ |
2811 | ret = lan78xx_reset(dev); | |
629eeaac RC |
2812 | if (ret) { |
2813 | netdev_warn(dev->net, "Registers INIT FAILED...."); | |
2814 | goto out2; | |
2815 | } | |
55d7de9d | 2816 | |
fb52c3b5 | 2817 | ret = lan78xx_mdio_init(dev); |
629eeaac RC |
2818 | if (ret) { |
2819 | netdev_warn(dev->net, "MDIO INIT FAILED....."); | |
2820 | goto out2; | |
2821 | } | |
ce85e13a | 2822 | |
55d7de9d WH |
2823 | dev->net->flags |= IFF_MULTICAST; |
2824 | ||
2825 | pdata->wol = WAKE_MAGIC; | |
2826 | ||
fb52c3b5 | 2827 | return ret; |
629eeaac RC |
2828 | |
2829 | out2: | |
2830 | lan78xx_remove_irq_domain(dev); | |
2831 | ||
2832 | out1: | |
2833 | netdev_warn(dev->net, "Bind routine FAILED"); | |
2834 | cancel_work_sync(&pdata->set_multicast); | |
2835 | cancel_work_sync(&pdata->set_vlan); | |
2836 | kfree(pdata); | |
2837 | return ret; | |
55d7de9d WH |
2838 | } |
2839 | ||
2840 | static void lan78xx_unbind(struct lan78xx_net *dev, struct usb_interface *intf) | |
2841 | { | |
2842 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
2843 | ||
cc89c323 WH |
2844 | lan78xx_remove_irq_domain(dev); |
2845 | ||
ce85e13a WH |
2846 | lan78xx_remove_mdio(dev); |
2847 | ||
55d7de9d | 2848 | if (pdata) { |
629eeaac RC |
2849 | cancel_work_sync(&pdata->set_multicast); |
2850 | cancel_work_sync(&pdata->set_vlan); | |
55d7de9d WH |
2851 | netif_dbg(dev, ifdown, dev->net, "free pdata"); |
2852 | kfree(pdata); | |
2853 | pdata = NULL; | |
2854 | dev->data[0] = 0; | |
2855 | } | |
2856 | } | |
2857 | ||
2858 | static void lan78xx_rx_csum_offload(struct lan78xx_net *dev, | |
2859 | struct sk_buff *skb, | |
2860 | u32 rx_cmd_a, u32 rx_cmd_b) | |
2861 | { | |
2862 | if (!(dev->net->features & NETIF_F_RXCSUM) || | |
2863 | unlikely(rx_cmd_a & RX_CMD_A_ICSM_)) { | |
2864 | skb->ip_summed = CHECKSUM_NONE; | |
2865 | } else { | |
2866 | skb->csum = ntohs((u16)(rx_cmd_b >> RX_CMD_B_CSUM_SHIFT_)); | |
2867 | skb->ip_summed = CHECKSUM_COMPLETE; | |
2868 | } | |
2869 | } | |
2870 | ||
e0c79ff6 | 2871 | static void lan78xx_skb_return(struct lan78xx_net *dev, struct sk_buff *skb) |
55d7de9d WH |
2872 | { |
2873 | int status; | |
2874 | ||
2875 | if (test_bit(EVENT_RX_PAUSED, &dev->flags)) { | |
2876 | skb_queue_tail(&dev->rxq_pause, skb); | |
2877 | return; | |
2878 | } | |
2879 | ||
55d7de9d WH |
2880 | dev->net->stats.rx_packets++; |
2881 | dev->net->stats.rx_bytes += skb->len; | |
2882 | ||
74d79a2e WH |
2883 | skb->protocol = eth_type_trans(skb, dev->net); |
2884 | ||
55d7de9d WH |
2885 | netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n", |
2886 | skb->len + sizeof(struct ethhdr), skb->protocol); | |
2887 | memset(skb->cb, 0, sizeof(struct skb_data)); | |
2888 | ||
2889 | if (skb_defer_rx_timestamp(skb)) | |
2890 | return; | |
2891 | ||
2892 | status = netif_rx(skb); | |
2893 | if (status != NET_RX_SUCCESS) | |
2894 | netif_dbg(dev, rx_err, dev->net, | |
2895 | "netif_rx status %d\n", status); | |
2896 | } | |
2897 | ||
2898 | static int lan78xx_rx(struct lan78xx_net *dev, struct sk_buff *skb) | |
2899 | { | |
2900 | if (skb->len < dev->net->hard_header_len) | |
2901 | return 0; | |
2902 | ||
2903 | while (skb->len > 0) { | |
2904 | u32 rx_cmd_a, rx_cmd_b, align_count, size; | |
2905 | u16 rx_cmd_c; | |
2906 | struct sk_buff *skb2; | |
2907 | unsigned char *packet; | |
2908 | ||
2909 | memcpy(&rx_cmd_a, skb->data, sizeof(rx_cmd_a)); | |
2910 | le32_to_cpus(&rx_cmd_a); | |
2911 | skb_pull(skb, sizeof(rx_cmd_a)); | |
2912 | ||
2913 | memcpy(&rx_cmd_b, skb->data, sizeof(rx_cmd_b)); | |
2914 | le32_to_cpus(&rx_cmd_b); | |
2915 | skb_pull(skb, sizeof(rx_cmd_b)); | |
2916 | ||
2917 | memcpy(&rx_cmd_c, skb->data, sizeof(rx_cmd_c)); | |
2918 | le16_to_cpus(&rx_cmd_c); | |
2919 | skb_pull(skb, sizeof(rx_cmd_c)); | |
2920 | ||
2921 | packet = skb->data; | |
2922 | ||
2923 | /* get the packet length */ | |
2924 | size = (rx_cmd_a & RX_CMD_A_LEN_MASK_); | |
2925 | align_count = (4 - ((size + RXW_PADDING) % 4)) % 4; | |
2926 | ||
2927 | if (unlikely(rx_cmd_a & RX_CMD_A_RED_)) { | |
2928 | netif_dbg(dev, rx_err, dev->net, | |
2929 | "Error rx_cmd_a=0x%08x", rx_cmd_a); | |
2930 | } else { | |
2931 | /* last frame in this batch */ | |
2932 | if (skb->len == size) { | |
2933 | lan78xx_rx_csum_offload(dev, skb, | |
2934 | rx_cmd_a, rx_cmd_b); | |
2935 | ||
2936 | skb_trim(skb, skb->len - 4); /* remove fcs */ | |
2937 | skb->truesize = size + sizeof(struct sk_buff); | |
2938 | ||
2939 | return 1; | |
2940 | } | |
2941 | ||
2942 | skb2 = skb_clone(skb, GFP_ATOMIC); | |
2943 | if (unlikely(!skb2)) { | |
2944 | netdev_warn(dev->net, "Error allocating skb"); | |
2945 | return 0; | |
2946 | } | |
2947 | ||
2948 | skb2->len = size; | |
2949 | skb2->data = packet; | |
2950 | skb_set_tail_pointer(skb2, size); | |
2951 | ||
2952 | lan78xx_rx_csum_offload(dev, skb2, rx_cmd_a, rx_cmd_b); | |
2953 | ||
2954 | skb_trim(skb2, skb2->len - 4); /* remove fcs */ | |
2955 | skb2->truesize = size + sizeof(struct sk_buff); | |
2956 | ||
2957 | lan78xx_skb_return(dev, skb2); | |
2958 | } | |
2959 | ||
2960 | skb_pull(skb, size); | |
2961 | ||
2962 | /* padding bytes before the next frame starts */ | |
2963 | if (skb->len) | |
2964 | skb_pull(skb, align_count); | |
2965 | } | |
2966 | ||
55d7de9d WH |
2967 | return 1; |
2968 | } | |
2969 | ||
2970 | static inline void rx_process(struct lan78xx_net *dev, struct sk_buff *skb) | |
2971 | { | |
2972 | if (!lan78xx_rx(dev, skb)) { | |
2973 | dev->net->stats.rx_errors++; | |
2974 | goto done; | |
2975 | } | |
2976 | ||
2977 | if (skb->len) { | |
2978 | lan78xx_skb_return(dev, skb); | |
2979 | return; | |
2980 | } | |
2981 | ||
2982 | netif_dbg(dev, rx_err, dev->net, "drop\n"); | |
2983 | dev->net->stats.rx_errors++; | |
2984 | done: | |
2985 | skb_queue_tail(&dev->done, skb); | |
2986 | } | |
2987 | ||
2988 | static void rx_complete(struct urb *urb); | |
2989 | ||
2990 | static int rx_submit(struct lan78xx_net *dev, struct urb *urb, gfp_t flags) | |
2991 | { | |
2992 | struct sk_buff *skb; | |
2993 | struct skb_data *entry; | |
2994 | unsigned long lockflags; | |
2995 | size_t size = dev->rx_urb_size; | |
2996 | int ret = 0; | |
2997 | ||
2998 | skb = netdev_alloc_skb_ip_align(dev->net, size); | |
2999 | if (!skb) { | |
3000 | usb_free_urb(urb); | |
3001 | return -ENOMEM; | |
3002 | } | |
3003 | ||
3004 | entry = (struct skb_data *)skb->cb; | |
3005 | entry->urb = urb; | |
3006 | entry->dev = dev; | |
3007 | entry->length = 0; | |
3008 | ||
3009 | usb_fill_bulk_urb(urb, dev->udev, dev->pipe_in, | |
3010 | skb->data, size, rx_complete, skb); | |
3011 | ||
3012 | spin_lock_irqsave(&dev->rxq.lock, lockflags); | |
3013 | ||
3014 | if (netif_device_present(dev->net) && | |
3015 | netif_running(dev->net) && | |
3016 | !test_bit(EVENT_RX_HALT, &dev->flags) && | |
3017 | !test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { | |
3018 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
3019 | switch (ret) { | |
3020 | case 0: | |
3021 | lan78xx_queue_skb(&dev->rxq, skb, rx_start); | |
3022 | break; | |
3023 | case -EPIPE: | |
3024 | lan78xx_defer_kevent(dev, EVENT_RX_HALT); | |
3025 | break; | |
3026 | case -ENODEV: | |
3027 | netif_dbg(dev, ifdown, dev->net, "device gone\n"); | |
3028 | netif_device_detach(dev->net); | |
3029 | break; | |
3030 | case -EHOSTUNREACH: | |
3031 | ret = -ENOLINK; | |
3032 | break; | |
3033 | default: | |
3034 | netif_dbg(dev, rx_err, dev->net, | |
3035 | "rx submit, %d\n", ret); | |
3036 | tasklet_schedule(&dev->bh); | |
3037 | } | |
3038 | } else { | |
3039 | netif_dbg(dev, ifdown, dev->net, "rx: stopped\n"); | |
3040 | ret = -ENOLINK; | |
3041 | } | |
3042 | spin_unlock_irqrestore(&dev->rxq.lock, lockflags); | |
3043 | if (ret) { | |
3044 | dev_kfree_skb_any(skb); | |
3045 | usb_free_urb(urb); | |
3046 | } | |
3047 | return ret; | |
3048 | } | |
3049 | ||
3050 | static void rx_complete(struct urb *urb) | |
3051 | { | |
3052 | struct sk_buff *skb = (struct sk_buff *)urb->context; | |
3053 | struct skb_data *entry = (struct skb_data *)skb->cb; | |
3054 | struct lan78xx_net *dev = entry->dev; | |
3055 | int urb_status = urb->status; | |
3056 | enum skb_state state; | |
3057 | ||
3058 | skb_put(skb, urb->actual_length); | |
3059 | state = rx_done; | |
3060 | entry->urb = NULL; | |
3061 | ||
3062 | switch (urb_status) { | |
3063 | case 0: | |
3064 | if (skb->len < dev->net->hard_header_len) { | |
3065 | state = rx_cleanup; | |
3066 | dev->net->stats.rx_errors++; | |
3067 | dev->net->stats.rx_length_errors++; | |
3068 | netif_dbg(dev, rx_err, dev->net, | |
3069 | "rx length %d\n", skb->len); | |
3070 | } | |
3071 | usb_mark_last_busy(dev->udev); | |
3072 | break; | |
3073 | case -EPIPE: | |
3074 | dev->net->stats.rx_errors++; | |
3075 | lan78xx_defer_kevent(dev, EVENT_RX_HALT); | |
3076 | /* FALLTHROUGH */ | |
3077 | case -ECONNRESET: /* async unlink */ | |
3078 | case -ESHUTDOWN: /* hardware gone */ | |
3079 | netif_dbg(dev, ifdown, dev->net, | |
3080 | "rx shutdown, code %d\n", urb_status); | |
3081 | state = rx_cleanup; | |
3082 | entry->urb = urb; | |
3083 | urb = NULL; | |
3084 | break; | |
3085 | case -EPROTO: | |
3086 | case -ETIME: | |
3087 | case -EILSEQ: | |
3088 | dev->net->stats.rx_errors++; | |
3089 | state = rx_cleanup; | |
3090 | entry->urb = urb; | |
3091 | urb = NULL; | |
3092 | break; | |
3093 | ||
3094 | /* data overrun ... flush fifo? */ | |
3095 | case -EOVERFLOW: | |
3096 | dev->net->stats.rx_over_errors++; | |
3097 | /* FALLTHROUGH */ | |
3098 | ||
3099 | default: | |
3100 | state = rx_cleanup; | |
3101 | dev->net->stats.rx_errors++; | |
3102 | netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status); | |
3103 | break; | |
3104 | } | |
3105 | ||
3106 | state = defer_bh(dev, skb, &dev->rxq, state); | |
3107 | ||
3108 | if (urb) { | |
3109 | if (netif_running(dev->net) && | |
3110 | !test_bit(EVENT_RX_HALT, &dev->flags) && | |
3111 | state != unlink_start) { | |
3112 | rx_submit(dev, urb, GFP_ATOMIC); | |
3113 | return; | |
3114 | } | |
3115 | usb_free_urb(urb); | |
3116 | } | |
3117 | netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n"); | |
3118 | } | |
3119 | ||
3120 | static void lan78xx_tx_bh(struct lan78xx_net *dev) | |
3121 | { | |
3122 | int length; | |
3123 | struct urb *urb = NULL; | |
3124 | struct skb_data *entry; | |
3125 | unsigned long flags; | |
3126 | struct sk_buff_head *tqp = &dev->txq_pend; | |
3127 | struct sk_buff *skb, *skb2; | |
3128 | int ret; | |
3129 | int count, pos; | |
3130 | int skb_totallen, pkt_cnt; | |
3131 | ||
3132 | skb_totallen = 0; | |
3133 | pkt_cnt = 0; | |
74d79a2e WH |
3134 | count = 0; |
3135 | length = 0; | |
2be27d44 | 3136 | spin_lock_irqsave(&tqp->lock, flags); |
55d7de9d WH |
3137 | for (skb = tqp->next; pkt_cnt < tqp->qlen; skb = skb->next) { |
3138 | if (skb_is_gso(skb)) { | |
3139 | if (pkt_cnt) { | |
3140 | /* handle previous packets first */ | |
3141 | break; | |
3142 | } | |
74d79a2e WH |
3143 | count = 1; |
3144 | length = skb->len - TX_OVERHEAD; | |
2be27d44 SW |
3145 | __skb_unlink(skb, tqp); |
3146 | spin_unlock_irqrestore(&tqp->lock, flags); | |
55d7de9d WH |
3147 | goto gso_skb; |
3148 | } | |
3149 | ||
3150 | if ((skb_totallen + skb->len) > MAX_SINGLE_PACKET_SIZE) | |
3151 | break; | |
3152 | skb_totallen = skb->len + roundup(skb_totallen, sizeof(u32)); | |
3153 | pkt_cnt++; | |
3154 | } | |
2be27d44 | 3155 | spin_unlock_irqrestore(&tqp->lock, flags); |
55d7de9d WH |
3156 | |
3157 | /* copy to a single skb */ | |
3158 | skb = alloc_skb(skb_totallen, GFP_ATOMIC); | |
3159 | if (!skb) | |
3160 | goto drop; | |
3161 | ||
3162 | skb_put(skb, skb_totallen); | |
3163 | ||
3164 | for (count = pos = 0; count < pkt_cnt; count++) { | |
3165 | skb2 = skb_dequeue(tqp); | |
3166 | if (skb2) { | |
74d79a2e | 3167 | length += (skb2->len - TX_OVERHEAD); |
55d7de9d WH |
3168 | memcpy(skb->data + pos, skb2->data, skb2->len); |
3169 | pos += roundup(skb2->len, sizeof(u32)); | |
3170 | dev_kfree_skb(skb2); | |
55d7de9d WH |
3171 | } |
3172 | } | |
3173 | ||
55d7de9d WH |
3174 | gso_skb: |
3175 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
d7c4e84e | 3176 | if (!urb) |
55d7de9d | 3177 | goto drop; |
55d7de9d WH |
3178 | |
3179 | entry = (struct skb_data *)skb->cb; | |
3180 | entry->urb = urb; | |
3181 | entry->dev = dev; | |
3182 | entry->length = length; | |
74d79a2e | 3183 | entry->num_of_packet = count; |
55d7de9d WH |
3184 | |
3185 | spin_lock_irqsave(&dev->txq.lock, flags); | |
3186 | ret = usb_autopm_get_interface_async(dev->intf); | |
3187 | if (ret < 0) { | |
3188 | spin_unlock_irqrestore(&dev->txq.lock, flags); | |
3189 | goto drop; | |
3190 | } | |
3191 | ||
3192 | usb_fill_bulk_urb(urb, dev->udev, dev->pipe_out, | |
3193 | skb->data, skb->len, tx_complete, skb); | |
3194 | ||
3195 | if (length % dev->maxpacket == 0) { | |
3196 | /* send USB_ZERO_PACKET */ | |
3197 | urb->transfer_flags |= URB_ZERO_PACKET; | |
3198 | } | |
3199 | ||
3200 | #ifdef CONFIG_PM | |
3201 | /* if this triggers the device is still a sleep */ | |
3202 | if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { | |
3203 | /* transmission will be done in resume */ | |
3204 | usb_anchor_urb(urb, &dev->deferred); | |
3205 | /* no use to process more packets */ | |
3206 | netif_stop_queue(dev->net); | |
3207 | usb_put_urb(urb); | |
3208 | spin_unlock_irqrestore(&dev->txq.lock, flags); | |
3209 | netdev_dbg(dev->net, "Delaying transmission for resumption\n"); | |
3210 | return; | |
3211 | } | |
3212 | #endif | |
3213 | ||
3214 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
3215 | switch (ret) { | |
3216 | case 0: | |
860e9538 | 3217 | netif_trans_update(dev->net); |
55d7de9d WH |
3218 | lan78xx_queue_skb(&dev->txq, skb, tx_start); |
3219 | if (skb_queue_len(&dev->txq) >= dev->tx_qlen) | |
3220 | netif_stop_queue(dev->net); | |
3221 | break; | |
3222 | case -EPIPE: | |
3223 | netif_stop_queue(dev->net); | |
3224 | lan78xx_defer_kevent(dev, EVENT_TX_HALT); | |
3225 | usb_autopm_put_interface_async(dev->intf); | |
3226 | break; | |
3227 | default: | |
3228 | usb_autopm_put_interface_async(dev->intf); | |
3229 | netif_dbg(dev, tx_err, dev->net, | |
3230 | "tx: submit urb err %d\n", ret); | |
3231 | break; | |
3232 | } | |
3233 | ||
3234 | spin_unlock_irqrestore(&dev->txq.lock, flags); | |
3235 | ||
3236 | if (ret) { | |
3237 | netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", ret); | |
3238 | drop: | |
3239 | dev->net->stats.tx_dropped++; | |
3240 | if (skb) | |
3241 | dev_kfree_skb_any(skb); | |
3242 | usb_free_urb(urb); | |
3243 | } else | |
3244 | netif_dbg(dev, tx_queued, dev->net, | |
3245 | "> tx, len %d, type 0x%x\n", length, skb->protocol); | |
3246 | } | |
3247 | ||
3248 | static void lan78xx_rx_bh(struct lan78xx_net *dev) | |
3249 | { | |
3250 | struct urb *urb; | |
3251 | int i; | |
3252 | ||
3253 | if (skb_queue_len(&dev->rxq) < dev->rx_qlen) { | |
3254 | for (i = 0; i < 10; i++) { | |
3255 | if (skb_queue_len(&dev->rxq) >= dev->rx_qlen) | |
3256 | break; | |
3257 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
3258 | if (urb) | |
3259 | if (rx_submit(dev, urb, GFP_ATOMIC) == -ENOLINK) | |
3260 | return; | |
3261 | } | |
3262 | ||
3263 | if (skb_queue_len(&dev->rxq) < dev->rx_qlen) | |
3264 | tasklet_schedule(&dev->bh); | |
3265 | } | |
3266 | if (skb_queue_len(&dev->txq) < dev->tx_qlen) | |
3267 | netif_wake_queue(dev->net); | |
3268 | } | |
3269 | ||
3270 | static void lan78xx_bh(unsigned long param) | |
3271 | { | |
3272 | struct lan78xx_net *dev = (struct lan78xx_net *)param; | |
3273 | struct sk_buff *skb; | |
3274 | struct skb_data *entry; | |
3275 | ||
55d7de9d WH |
3276 | while ((skb = skb_dequeue(&dev->done))) { |
3277 | entry = (struct skb_data *)(skb->cb); | |
3278 | switch (entry->state) { | |
3279 | case rx_done: | |
3280 | entry->state = rx_cleanup; | |
3281 | rx_process(dev, skb); | |
3282 | continue; | |
3283 | case tx_done: | |
3284 | usb_free_urb(entry->urb); | |
3285 | dev_kfree_skb(skb); | |
3286 | continue; | |
3287 | case rx_cleanup: | |
3288 | usb_free_urb(entry->urb); | |
3289 | dev_kfree_skb(skb); | |
3290 | continue; | |
3291 | default: | |
3292 | netdev_dbg(dev->net, "skb state %d\n", entry->state); | |
3293 | return; | |
3294 | } | |
55d7de9d WH |
3295 | } |
3296 | ||
3297 | if (netif_device_present(dev->net) && netif_running(dev->net)) { | |
20ff5565 WH |
3298 | /* reset update timer delta */ |
3299 | if (timer_pending(&dev->stat_monitor) && (dev->delta != 1)) { | |
3300 | dev->delta = 1; | |
3301 | mod_timer(&dev->stat_monitor, | |
3302 | jiffies + STAT_UPDATE_TIMER); | |
3303 | } | |
3304 | ||
55d7de9d WH |
3305 | if (!skb_queue_empty(&dev->txq_pend)) |
3306 | lan78xx_tx_bh(dev); | |
3307 | ||
3308 | if (!timer_pending(&dev->delay) && | |
3309 | !test_bit(EVENT_RX_HALT, &dev->flags)) | |
3310 | lan78xx_rx_bh(dev); | |
3311 | } | |
3312 | } | |
3313 | ||
3314 | static void lan78xx_delayedwork(struct work_struct *work) | |
3315 | { | |
3316 | int status; | |
3317 | struct lan78xx_net *dev; | |
3318 | ||
3319 | dev = container_of(work, struct lan78xx_net, wq.work); | |
3320 | ||
3321 | if (test_bit(EVENT_TX_HALT, &dev->flags)) { | |
3322 | unlink_urbs(dev, &dev->txq); | |
3323 | status = usb_autopm_get_interface(dev->intf); | |
3324 | if (status < 0) | |
3325 | goto fail_pipe; | |
3326 | status = usb_clear_halt(dev->udev, dev->pipe_out); | |
3327 | usb_autopm_put_interface(dev->intf); | |
3328 | if (status < 0 && | |
3329 | status != -EPIPE && | |
3330 | status != -ESHUTDOWN) { | |
3331 | if (netif_msg_tx_err(dev)) | |
3332 | fail_pipe: | |
3333 | netdev_err(dev->net, | |
3334 | "can't clear tx halt, status %d\n", | |
3335 | status); | |
3336 | } else { | |
3337 | clear_bit(EVENT_TX_HALT, &dev->flags); | |
3338 | if (status != -ESHUTDOWN) | |
3339 | netif_wake_queue(dev->net); | |
3340 | } | |
3341 | } | |
3342 | if (test_bit(EVENT_RX_HALT, &dev->flags)) { | |
3343 | unlink_urbs(dev, &dev->rxq); | |
3344 | status = usb_autopm_get_interface(dev->intf); | |
3345 | if (status < 0) | |
3346 | goto fail_halt; | |
3347 | status = usb_clear_halt(dev->udev, dev->pipe_in); | |
3348 | usb_autopm_put_interface(dev->intf); | |
3349 | if (status < 0 && | |
3350 | status != -EPIPE && | |
3351 | status != -ESHUTDOWN) { | |
3352 | if (netif_msg_rx_err(dev)) | |
3353 | fail_halt: | |
3354 | netdev_err(dev->net, | |
3355 | "can't clear rx halt, status %d\n", | |
3356 | status); | |
3357 | } else { | |
3358 | clear_bit(EVENT_RX_HALT, &dev->flags); | |
3359 | tasklet_schedule(&dev->bh); | |
3360 | } | |
3361 | } | |
3362 | ||
3363 | if (test_bit(EVENT_LINK_RESET, &dev->flags)) { | |
3364 | int ret = 0; | |
3365 | ||
3366 | clear_bit(EVENT_LINK_RESET, &dev->flags); | |
3367 | status = usb_autopm_get_interface(dev->intf); | |
3368 | if (status < 0) | |
3369 | goto skip_reset; | |
3370 | if (lan78xx_link_reset(dev) < 0) { | |
3371 | usb_autopm_put_interface(dev->intf); | |
3372 | skip_reset: | |
3373 | netdev_info(dev->net, "link reset failed (%d)\n", | |
3374 | ret); | |
3375 | } else { | |
3376 | usb_autopm_put_interface(dev->intf); | |
3377 | } | |
3378 | } | |
20ff5565 WH |
3379 | |
3380 | if (test_bit(EVENT_STAT_UPDATE, &dev->flags)) { | |
3381 | lan78xx_update_stats(dev); | |
3382 | ||
3383 | clear_bit(EVENT_STAT_UPDATE, &dev->flags); | |
3384 | ||
3385 | mod_timer(&dev->stat_monitor, | |
3386 | jiffies + (STAT_UPDATE_TIMER * dev->delta)); | |
3387 | ||
3388 | dev->delta = min((dev->delta * 2), 50); | |
3389 | } | |
55d7de9d WH |
3390 | } |
3391 | ||
3392 | static void intr_complete(struct urb *urb) | |
3393 | { | |
3394 | struct lan78xx_net *dev = urb->context; | |
3395 | int status = urb->status; | |
3396 | ||
3397 | switch (status) { | |
3398 | /* success */ | |
3399 | case 0: | |
3400 | lan78xx_status(dev, urb); | |
3401 | break; | |
3402 | ||
3403 | /* software-driven interface shutdown */ | |
3404 | case -ENOENT: /* urb killed */ | |
3405 | case -ESHUTDOWN: /* hardware gone */ | |
3406 | netif_dbg(dev, ifdown, dev->net, | |
3407 | "intr shutdown, code %d\n", status); | |
3408 | return; | |
3409 | ||
3410 | /* NOTE: not throttling like RX/TX, since this endpoint | |
3411 | * already polls infrequently | |
3412 | */ | |
3413 | default: | |
3414 | netdev_dbg(dev->net, "intr status %d\n", status); | |
3415 | break; | |
3416 | } | |
3417 | ||
3418 | if (!netif_running(dev->net)) | |
3419 | return; | |
3420 | ||
3421 | memset(urb->transfer_buffer, 0, urb->transfer_buffer_length); | |
3422 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
3423 | if (status != 0) | |
3424 | netif_err(dev, timer, dev->net, | |
3425 | "intr resubmit --> %d\n", status); | |
3426 | } | |
3427 | ||
3428 | static void lan78xx_disconnect(struct usb_interface *intf) | |
3429 | { | |
3430 | struct lan78xx_net *dev; | |
3431 | struct usb_device *udev; | |
3432 | struct net_device *net; | |
3433 | ||
3434 | dev = usb_get_intfdata(intf); | |
3435 | usb_set_intfdata(intf, NULL); | |
3436 | if (!dev) | |
3437 | return; | |
3438 | ||
3439 | udev = interface_to_usbdev(intf); | |
55d7de9d | 3440 | net = dev->net; |
6d03ff16 AG |
3441 | |
3442 | phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0); | |
3443 | phy_unregister_fixup_for_uid(PHY_LAN8835, 0xfffffff0); | |
3444 | ||
3445 | phy_disconnect(net->phydev); | |
3446 | ||
55d7de9d WH |
3447 | unregister_netdev(net); |
3448 | ||
3449 | cancel_delayed_work_sync(&dev->wq); | |
3450 | ||
3451 | usb_scuttle_anchored_urbs(&dev->deferred); | |
3452 | ||
3453 | lan78xx_unbind(dev, intf); | |
3454 | ||
3455 | usb_kill_urb(dev->urb_intr); | |
3456 | usb_free_urb(dev->urb_intr); | |
3457 | ||
3458 | free_netdev(net); | |
3459 | usb_put_dev(udev); | |
3460 | } | |
3461 | ||
e0c79ff6 | 3462 | static void lan78xx_tx_timeout(struct net_device *net) |
55d7de9d WH |
3463 | { |
3464 | struct lan78xx_net *dev = netdev_priv(net); | |
3465 | ||
3466 | unlink_urbs(dev, &dev->txq); | |
3467 | tasklet_schedule(&dev->bh); | |
3468 | } | |
3469 | ||
d6502fc2 JH |
3470 | static netdev_features_t lan78xx_features_check(struct sk_buff *skb, |
3471 | struct net_device *netdev, | |
3472 | netdev_features_t features) | |
3473 | { | |
3474 | if (skb->len + TX_OVERHEAD > MAX_SINGLE_PACKET_SIZE) | |
3475 | features &= ~NETIF_F_GSO_MASK; | |
3476 | ||
3477 | features = vlan_features_check(skb, features); | |
3478 | features = vxlan_features_check(skb, features); | |
3479 | ||
3480 | return features; | |
3481 | } | |
3482 | ||
55d7de9d WH |
3483 | static const struct net_device_ops lan78xx_netdev_ops = { |
3484 | .ndo_open = lan78xx_open, | |
3485 | .ndo_stop = lan78xx_stop, | |
3486 | .ndo_start_xmit = lan78xx_start_xmit, | |
3487 | .ndo_tx_timeout = lan78xx_tx_timeout, | |
3488 | .ndo_change_mtu = lan78xx_change_mtu, | |
3489 | .ndo_set_mac_address = lan78xx_set_mac_addr, | |
3490 | .ndo_validate_addr = eth_validate_addr, | |
3491 | .ndo_do_ioctl = lan78xx_ioctl, | |
3492 | .ndo_set_rx_mode = lan78xx_set_multicast, | |
3493 | .ndo_set_features = lan78xx_set_features, | |
3494 | .ndo_vlan_rx_add_vid = lan78xx_vlan_rx_add_vid, | |
3495 | .ndo_vlan_rx_kill_vid = lan78xx_vlan_rx_kill_vid, | |
d6502fc2 | 3496 | .ndo_features_check = lan78xx_features_check, |
55d7de9d WH |
3497 | }; |
3498 | ||
20ff5565 WH |
3499 | static void lan78xx_stat_monitor(unsigned long param) |
3500 | { | |
3501 | struct lan78xx_net *dev; | |
3502 | ||
3503 | dev = (struct lan78xx_net *)param; | |
3504 | ||
3505 | lan78xx_defer_kevent(dev, EVENT_STAT_UPDATE); | |
3506 | } | |
3507 | ||
55d7de9d WH |
3508 | static int lan78xx_probe(struct usb_interface *intf, |
3509 | const struct usb_device_id *id) | |
3510 | { | |
7105bb40 | 3511 | struct usb_host_endpoint *ep_blkin, *ep_blkout, *ep_intr; |
55d7de9d WH |
3512 | struct lan78xx_net *dev; |
3513 | struct net_device *netdev; | |
3514 | struct usb_device *udev; | |
3515 | int ret; | |
3516 | unsigned maxp; | |
3517 | unsigned period; | |
3518 | u8 *buf = NULL; | |
3519 | ||
3520 | udev = interface_to_usbdev(intf); | |
3521 | udev = usb_get_dev(udev); | |
3522 | ||
55d7de9d WH |
3523 | netdev = alloc_etherdev(sizeof(struct lan78xx_net)); |
3524 | if (!netdev) { | |
fb52c3b5 NS |
3525 | dev_err(&intf->dev, "Error: OOM\n"); |
3526 | ret = -ENOMEM; | |
3527 | goto out1; | |
55d7de9d WH |
3528 | } |
3529 | ||
3530 | /* netdev_printk() needs this */ | |
3531 | SET_NETDEV_DEV(netdev, &intf->dev); | |
3532 | ||
3533 | dev = netdev_priv(netdev); | |
3534 | dev->udev = udev; | |
3535 | dev->intf = intf; | |
3536 | dev->net = netdev; | |
3537 | dev->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV | |
3538 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); | |
3539 | ||
3540 | skb_queue_head_init(&dev->rxq); | |
3541 | skb_queue_head_init(&dev->txq); | |
3542 | skb_queue_head_init(&dev->done); | |
3543 | skb_queue_head_init(&dev->rxq_pause); | |
3544 | skb_queue_head_init(&dev->txq_pend); | |
3545 | mutex_init(&dev->phy_mutex); | |
3546 | ||
3547 | tasklet_init(&dev->bh, lan78xx_bh, (unsigned long)dev); | |
3548 | INIT_DELAYED_WORK(&dev->wq, lan78xx_delayedwork); | |
3549 | init_usb_anchor(&dev->deferred); | |
3550 | ||
3551 | netdev->netdev_ops = &lan78xx_netdev_ops; | |
3552 | netdev->watchdog_timeo = TX_TIMEOUT_JIFFIES; | |
3553 | netdev->ethtool_ops = &lan78xx_ethtool_ops; | |
3554 | ||
20ff5565 WH |
3555 | dev->stat_monitor.function = lan78xx_stat_monitor; |
3556 | dev->stat_monitor.data = (unsigned long)dev; | |
3557 | dev->delta = 1; | |
3558 | init_timer(&dev->stat_monitor); | |
3559 | ||
3560 | mutex_init(&dev->stats.access_lock); | |
3561 | ||
7105bb40 JH |
3562 | if (intf->cur_altsetting->desc.bNumEndpoints < 3) { |
3563 | ret = -ENODEV; | |
3564 | goto out2; | |
3565 | } | |
3566 | ||
3567 | dev->pipe_in = usb_rcvbulkpipe(udev, BULK_IN_PIPE); | |
3568 | ep_blkin = usb_pipe_endpoint(udev, dev->pipe_in); | |
3569 | if (!ep_blkin || !usb_endpoint_is_bulk_in(&ep_blkin->desc)) { | |
3570 | ret = -ENODEV; | |
3571 | goto out2; | |
3572 | } | |
3573 | ||
3574 | dev->pipe_out = usb_sndbulkpipe(udev, BULK_OUT_PIPE); | |
3575 | ep_blkout = usb_pipe_endpoint(udev, dev->pipe_out); | |
3576 | if (!ep_blkout || !usb_endpoint_is_bulk_out(&ep_blkout->desc)) { | |
3577 | ret = -ENODEV; | |
3578 | goto out2; | |
3579 | } | |
3580 | ||
3581 | ep_intr = &intf->cur_altsetting->endpoint[2]; | |
3582 | if (!usb_endpoint_is_int_in(&ep_intr->desc)) { | |
3583 | ret = -ENODEV; | |
3584 | goto out2; | |
3585 | } | |
3586 | ||
3587 | dev->pipe_intr = usb_rcvintpipe(dev->udev, | |
3588 | usb_endpoint_num(&ep_intr->desc)); | |
3589 | ||
55d7de9d WH |
3590 | ret = lan78xx_bind(dev, intf); |
3591 | if (ret < 0) | |
3592 | goto out2; | |
3593 | strcpy(netdev->name, "eth%d"); | |
3594 | ||
3595 | if (netdev->mtu > (dev->hard_mtu - netdev->hard_header_len)) | |
3596 | netdev->mtu = dev->hard_mtu - netdev->hard_header_len; | |
3597 | ||
f77f0aee JW |
3598 | /* MTU range: 68 - 9000 */ |
3599 | netdev->max_mtu = MAX_SINGLE_PACKET_SIZE; | |
7ebdc211 | 3600 | netif_set_gso_max_size(netdev, MAX_SINGLE_PACKET_SIZE - MAX_HEADER); |
f77f0aee | 3601 | |
7105bb40 | 3602 | period = ep_intr->desc.bInterval; |
55d7de9d WH |
3603 | maxp = usb_maxpacket(dev->udev, dev->pipe_intr, 0); |
3604 | buf = kmalloc(maxp, GFP_KERNEL); | |
3605 | if (buf) { | |
3606 | dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL); | |
3607 | if (!dev->urb_intr) { | |
51920830 | 3608 | ret = -ENOMEM; |
55d7de9d WH |
3609 | kfree(buf); |
3610 | goto out3; | |
3611 | } else { | |
3612 | usb_fill_int_urb(dev->urb_intr, dev->udev, | |
3613 | dev->pipe_intr, buf, maxp, | |
3614 | intr_complete, dev, period); | |
3c00fe92 | 3615 | dev->urb_intr->transfer_flags |= URB_FREE_BUFFER; |
55d7de9d WH |
3616 | } |
3617 | } | |
3618 | ||
3619 | dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out, 1); | |
3620 | ||
3621 | /* driver requires remote-wakeup capability during autosuspend. */ | |
3622 | intf->needs_remote_wakeup = 1; | |
3623 | ||
03a70959 AL |
3624 | ret = lan78xx_phy_init(dev); |
3625 | if (ret < 0) | |
3626 | goto out4; | |
3627 | ||
55d7de9d WH |
3628 | ret = register_netdev(netdev); |
3629 | if (ret != 0) { | |
3630 | netif_err(dev, probe, netdev, "couldn't register the device\n"); | |
03a70959 | 3631 | goto out5; |
55d7de9d WH |
3632 | } |
3633 | ||
3634 | usb_set_intfdata(intf, dev); | |
3635 | ||
3636 | ret = device_set_wakeup_enable(&udev->dev, true); | |
3637 | ||
3638 | /* Default delay of 2sec has more overhead than advantage. | |
3639 | * Set to 10sec as default. | |
3640 | */ | |
3641 | pm_runtime_set_autosuspend_delay(&udev->dev, | |
3642 | DEFAULT_AUTOSUSPEND_DELAY); | |
3643 | ||
3644 | return 0; | |
3645 | ||
c62760f0 | 3646 | out5: |
03a70959 | 3647 | phy_disconnect(netdev->phydev); |
c62760f0 WW |
3648 | out4: |
3649 | usb_free_urb(dev->urb_intr); | |
55d7de9d WH |
3650 | out3: |
3651 | lan78xx_unbind(dev, intf); | |
3652 | out2: | |
3653 | free_netdev(netdev); | |
3654 | out1: | |
3655 | usb_put_dev(udev); | |
3656 | ||
3657 | return ret; | |
3658 | } | |
3659 | ||
3660 | static u16 lan78xx_wakeframe_crc16(const u8 *buf, int len) | |
3661 | { | |
3662 | const u16 crc16poly = 0x8005; | |
3663 | int i; | |
3664 | u16 bit, crc, msb; | |
3665 | u8 data; | |
3666 | ||
3667 | crc = 0xFFFF; | |
3668 | for (i = 0; i < len; i++) { | |
3669 | data = *buf++; | |
3670 | for (bit = 0; bit < 8; bit++) { | |
3671 | msb = crc >> 15; | |
3672 | crc <<= 1; | |
3673 | ||
3674 | if (msb ^ (u16)(data & 1)) { | |
3675 | crc ^= crc16poly; | |
3676 | crc |= (u16)0x0001U; | |
3677 | } | |
3678 | data >>= 1; | |
3679 | } | |
3680 | } | |
3681 | ||
3682 | return crc; | |
3683 | } | |
3684 | ||
3685 | static int lan78xx_set_suspend(struct lan78xx_net *dev, u32 wol) | |
3686 | { | |
3687 | u32 buf; | |
3688 | int ret; | |
3689 | int mask_index; | |
3690 | u16 crc; | |
3691 | u32 temp_wucsr; | |
3692 | u32 temp_pmt_ctl; | |
3693 | const u8 ipv4_multicast[3] = { 0x01, 0x00, 0x5E }; | |
3694 | const u8 ipv6_multicast[3] = { 0x33, 0x33 }; | |
3695 | const u8 arp_type[2] = { 0x08, 0x06 }; | |
3696 | ||
3697 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
3698 | buf &= ~MAC_TX_TXEN_; | |
3699 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
3700 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3701 | buf &= ~MAC_RX_RXEN_; | |
3702 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3703 | ||
3704 | ret = lan78xx_write_reg(dev, WUCSR, 0); | |
3705 | ret = lan78xx_write_reg(dev, WUCSR2, 0); | |
3706 | ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); | |
3707 | ||
3708 | temp_wucsr = 0; | |
3709 | ||
3710 | temp_pmt_ctl = 0; | |
3711 | ret = lan78xx_read_reg(dev, PMT_CTL, &temp_pmt_ctl); | |
3712 | temp_pmt_ctl &= ~PMT_CTL_RES_CLR_WKP_EN_; | |
3713 | temp_pmt_ctl |= PMT_CTL_RES_CLR_WKP_STS_; | |
3714 | ||
3715 | for (mask_index = 0; mask_index < NUM_OF_WUF_CFG; mask_index++) | |
3716 | ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), 0); | |
3717 | ||
3718 | mask_index = 0; | |
3719 | if (wol & WAKE_PHY) { | |
3720 | temp_pmt_ctl |= PMT_CTL_PHY_WAKE_EN_; | |
3721 | ||
3722 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3723 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3724 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3725 | } | |
3726 | if (wol & WAKE_MAGIC) { | |
3727 | temp_wucsr |= WUCSR_MPEN_; | |
3728 | ||
3729 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3730 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3731 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_3_; | |
3732 | } | |
3733 | if (wol & WAKE_BCAST) { | |
3734 | temp_wucsr |= WUCSR_BCST_EN_; | |
3735 | ||
3736 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3737 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3738 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3739 | } | |
3740 | if (wol & WAKE_MCAST) { | |
3741 | temp_wucsr |= WUCSR_WAKE_EN_; | |
3742 | ||
3743 | /* set WUF_CFG & WUF_MASK for IPv4 Multicast */ | |
3744 | crc = lan78xx_wakeframe_crc16(ipv4_multicast, 3); | |
3745 | ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), | |
3746 | WUF_CFGX_EN_ | | |
3747 | WUF_CFGX_TYPE_MCAST_ | | |
3748 | (0 << WUF_CFGX_OFFSET_SHIFT_) | | |
3749 | (crc & WUF_CFGX_CRC16_MASK_)); | |
3750 | ||
3751 | ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 7); | |
3752 | ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); | |
3753 | ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); | |
3754 | ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); | |
3755 | mask_index++; | |
3756 | ||
3757 | /* for IPv6 Multicast */ | |
3758 | crc = lan78xx_wakeframe_crc16(ipv6_multicast, 2); | |
3759 | ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), | |
3760 | WUF_CFGX_EN_ | | |
3761 | WUF_CFGX_TYPE_MCAST_ | | |
3762 | (0 << WUF_CFGX_OFFSET_SHIFT_) | | |
3763 | (crc & WUF_CFGX_CRC16_MASK_)); | |
3764 | ||
3765 | ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 3); | |
3766 | ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); | |
3767 | ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); | |
3768 | ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); | |
3769 | mask_index++; | |
3770 | ||
3771 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3772 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3773 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3774 | } | |
3775 | if (wol & WAKE_UCAST) { | |
3776 | temp_wucsr |= WUCSR_PFDA_EN_; | |
3777 | ||
3778 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3779 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3780 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3781 | } | |
3782 | if (wol & WAKE_ARP) { | |
3783 | temp_wucsr |= WUCSR_WAKE_EN_; | |
3784 | ||
3785 | /* set WUF_CFG & WUF_MASK | |
3786 | * for packettype (offset 12,13) = ARP (0x0806) | |
3787 | */ | |
3788 | crc = lan78xx_wakeframe_crc16(arp_type, 2); | |
3789 | ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), | |
3790 | WUF_CFGX_EN_ | | |
3791 | WUF_CFGX_TYPE_ALL_ | | |
3792 | (0 << WUF_CFGX_OFFSET_SHIFT_) | | |
3793 | (crc & WUF_CFGX_CRC16_MASK_)); | |
3794 | ||
3795 | ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 0x3000); | |
3796 | ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); | |
3797 | ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); | |
3798 | ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); | |
3799 | mask_index++; | |
3800 | ||
3801 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3802 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3803 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3804 | } | |
3805 | ||
3806 | ret = lan78xx_write_reg(dev, WUCSR, temp_wucsr); | |
3807 | ||
3808 | /* when multiple WOL bits are set */ | |
3809 | if (hweight_long((unsigned long)wol) > 1) { | |
3810 | temp_pmt_ctl |= PMT_CTL_WOL_EN_; | |
3811 | temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; | |
3812 | temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; | |
3813 | } | |
3814 | ret = lan78xx_write_reg(dev, PMT_CTL, temp_pmt_ctl); | |
3815 | ||
3816 | /* clear WUPS */ | |
3817 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
3818 | buf |= PMT_CTL_WUPS_MASK_; | |
3819 | ret = lan78xx_write_reg(dev, PMT_CTL, buf); | |
3820 | ||
3821 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3822 | buf |= MAC_RX_RXEN_; | |
3823 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3824 | ||
3825 | return 0; | |
3826 | } | |
3827 | ||
e0c79ff6 | 3828 | static int lan78xx_suspend(struct usb_interface *intf, pm_message_t message) |
55d7de9d WH |
3829 | { |
3830 | struct lan78xx_net *dev = usb_get_intfdata(intf); | |
3831 | struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); | |
3832 | u32 buf; | |
3833 | int ret; | |
3834 | int event; | |
3835 | ||
55d7de9d WH |
3836 | event = message.event; |
3837 | ||
3838 | if (!dev->suspend_count++) { | |
3839 | spin_lock_irq(&dev->txq.lock); | |
3840 | /* don't autosuspend while transmitting */ | |
3841 | if ((skb_queue_len(&dev->txq) || | |
3842 | skb_queue_len(&dev->txq_pend)) && | |
3843 | PMSG_IS_AUTO(message)) { | |
3844 | spin_unlock_irq(&dev->txq.lock); | |
3845 | ret = -EBUSY; | |
3846 | goto out; | |
3847 | } else { | |
3848 | set_bit(EVENT_DEV_ASLEEP, &dev->flags); | |
3849 | spin_unlock_irq(&dev->txq.lock); | |
3850 | } | |
3851 | ||
3852 | /* stop TX & RX */ | |
3853 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
3854 | buf &= ~MAC_TX_TXEN_; | |
3855 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
3856 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3857 | buf &= ~MAC_RX_RXEN_; | |
3858 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3859 | ||
3860 | /* empty out the rx and queues */ | |
3861 | netif_device_detach(dev->net); | |
3862 | lan78xx_terminate_urbs(dev); | |
3863 | usb_kill_urb(dev->urb_intr); | |
3864 | ||
3865 | /* reattach */ | |
3866 | netif_device_attach(dev->net); | |
3867 | } | |
3868 | ||
3869 | if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { | |
20ff5565 WH |
3870 | del_timer(&dev->stat_monitor); |
3871 | ||
55d7de9d WH |
3872 | if (PMSG_IS_AUTO(message)) { |
3873 | /* auto suspend (selective suspend) */ | |
3874 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
3875 | buf &= ~MAC_TX_TXEN_; | |
3876 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
3877 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3878 | buf &= ~MAC_RX_RXEN_; | |
3879 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3880 | ||
3881 | ret = lan78xx_write_reg(dev, WUCSR, 0); | |
3882 | ret = lan78xx_write_reg(dev, WUCSR2, 0); | |
3883 | ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); | |
3884 | ||
3885 | /* set goodframe wakeup */ | |
3886 | ret = lan78xx_read_reg(dev, WUCSR, &buf); | |
3887 | ||
3888 | buf |= WUCSR_RFE_WAKE_EN_; | |
3889 | buf |= WUCSR_STORE_WAKE_; | |
3890 | ||
3891 | ret = lan78xx_write_reg(dev, WUCSR, buf); | |
3892 | ||
3893 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
3894 | ||
3895 | buf &= ~PMT_CTL_RES_CLR_WKP_EN_; | |
3896 | buf |= PMT_CTL_RES_CLR_WKP_STS_; | |
3897 | ||
3898 | buf |= PMT_CTL_PHY_WAKE_EN_; | |
3899 | buf |= PMT_CTL_WOL_EN_; | |
3900 | buf &= ~PMT_CTL_SUS_MODE_MASK_; | |
3901 | buf |= PMT_CTL_SUS_MODE_3_; | |
3902 | ||
3903 | ret = lan78xx_write_reg(dev, PMT_CTL, buf); | |
3904 | ||
3905 | ret = lan78xx_read_reg(dev, PMT_CTL, &buf); | |
3906 | ||
3907 | buf |= PMT_CTL_WUPS_MASK_; | |
3908 | ||
3909 | ret = lan78xx_write_reg(dev, PMT_CTL, buf); | |
3910 | ||
3911 | ret = lan78xx_read_reg(dev, MAC_RX, &buf); | |
3912 | buf |= MAC_RX_RXEN_; | |
3913 | ret = lan78xx_write_reg(dev, MAC_RX, buf); | |
3914 | } else { | |
3915 | lan78xx_set_suspend(dev, pdata->wol); | |
3916 | } | |
3917 | } | |
3918 | ||
49d28b56 | 3919 | ret = 0; |
55d7de9d WH |
3920 | out: |
3921 | return ret; | |
3922 | } | |
3923 | ||
e0c79ff6 | 3924 | static int lan78xx_resume(struct usb_interface *intf) |
55d7de9d WH |
3925 | { |
3926 | struct lan78xx_net *dev = usb_get_intfdata(intf); | |
3927 | struct sk_buff *skb; | |
3928 | struct urb *res; | |
3929 | int ret; | |
3930 | u32 buf; | |
3931 | ||
20ff5565 WH |
3932 | if (!timer_pending(&dev->stat_monitor)) { |
3933 | dev->delta = 1; | |
3934 | mod_timer(&dev->stat_monitor, | |
3935 | jiffies + STAT_UPDATE_TIMER); | |
3936 | } | |
3937 | ||
55d7de9d WH |
3938 | if (!--dev->suspend_count) { |
3939 | /* resume interrupt URBs */ | |
3940 | if (dev->urb_intr && test_bit(EVENT_DEV_OPEN, &dev->flags)) | |
3941 | usb_submit_urb(dev->urb_intr, GFP_NOIO); | |
3942 | ||
3943 | spin_lock_irq(&dev->txq.lock); | |
3944 | while ((res = usb_get_from_anchor(&dev->deferred))) { | |
3945 | skb = (struct sk_buff *)res->context; | |
3946 | ret = usb_submit_urb(res, GFP_ATOMIC); | |
3947 | if (ret < 0) { | |
3948 | dev_kfree_skb_any(skb); | |
3949 | usb_free_urb(res); | |
3950 | usb_autopm_put_interface_async(dev->intf); | |
3951 | } else { | |
860e9538 | 3952 | netif_trans_update(dev->net); |
55d7de9d WH |
3953 | lan78xx_queue_skb(&dev->txq, skb, tx_start); |
3954 | } | |
3955 | } | |
3956 | ||
3957 | clear_bit(EVENT_DEV_ASLEEP, &dev->flags); | |
3958 | spin_unlock_irq(&dev->txq.lock); | |
3959 | ||
3960 | if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { | |
3961 | if (!(skb_queue_len(&dev->txq) >= dev->tx_qlen)) | |
3962 | netif_start_queue(dev->net); | |
3963 | tasklet_schedule(&dev->bh); | |
3964 | } | |
3965 | } | |
3966 | ||
3967 | ret = lan78xx_write_reg(dev, WUCSR2, 0); | |
3968 | ret = lan78xx_write_reg(dev, WUCSR, 0); | |
3969 | ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); | |
3970 | ||
3971 | ret = lan78xx_write_reg(dev, WUCSR2, WUCSR2_NS_RCD_ | | |
3972 | WUCSR2_ARP_RCD_ | | |
3973 | WUCSR2_IPV6_TCPSYN_RCD_ | | |
3974 | WUCSR2_IPV4_TCPSYN_RCD_); | |
3975 | ||
3976 | ret = lan78xx_write_reg(dev, WUCSR, WUCSR_EEE_TX_WAKE_ | | |
3977 | WUCSR_EEE_RX_WAKE_ | | |
3978 | WUCSR_PFDA_FR_ | | |
3979 | WUCSR_RFE_WAKE_FR_ | | |
3980 | WUCSR_WUFR_ | | |
3981 | WUCSR_MPR_ | | |
3982 | WUCSR_BCST_FR_); | |
3983 | ||
3984 | ret = lan78xx_read_reg(dev, MAC_TX, &buf); | |
3985 | buf |= MAC_TX_TXEN_; | |
3986 | ret = lan78xx_write_reg(dev, MAC_TX, buf); | |
3987 | ||
3988 | return 0; | |
3989 | } | |
3990 | ||
e0c79ff6 | 3991 | static int lan78xx_reset_resume(struct usb_interface *intf) |
55d7de9d WH |
3992 | { |
3993 | struct lan78xx_net *dev = usb_get_intfdata(intf); | |
3994 | ||
3995 | lan78xx_reset(dev); | |
ce85e13a | 3996 | |
6d03ff16 | 3997 | phy_start(dev->net->phydev); |
ce85e13a | 3998 | |
55d7de9d WH |
3999 | return lan78xx_resume(intf); |
4000 | } | |
4001 | ||
4002 | static const struct usb_device_id products[] = { | |
4003 | { | |
4004 | /* LAN7800 USB Gigabit Ethernet Device */ | |
4005 | USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7800_USB_PRODUCT_ID), | |
4006 | }, | |
4007 | { | |
4008 | /* LAN7850 USB Gigabit Ethernet Device */ | |
4009 | USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7850_USB_PRODUCT_ID), | |
4010 | }, | |
02dc1f3d WH |
4011 | { |
4012 | /* LAN7801 USB Gigabit Ethernet Device */ | |
4013 | USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7801_USB_PRODUCT_ID), | |
4014 | }, | |
55d7de9d WH |
4015 | {}, |
4016 | }; | |
4017 | MODULE_DEVICE_TABLE(usb, products); | |
4018 | ||
4019 | static struct usb_driver lan78xx_driver = { | |
4020 | .name = DRIVER_NAME, | |
4021 | .id_table = products, | |
4022 | .probe = lan78xx_probe, | |
4023 | .disconnect = lan78xx_disconnect, | |
4024 | .suspend = lan78xx_suspend, | |
4025 | .resume = lan78xx_resume, | |
4026 | .reset_resume = lan78xx_reset_resume, | |
4027 | .supports_autosuspend = 1, | |
4028 | .disable_hub_initiated_lpm = 1, | |
4029 | }; | |
4030 | ||
4031 | module_usb_driver(lan78xx_driver); | |
4032 | ||
4033 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
4034 | MODULE_DESCRIPTION(DRIVER_DESC); | |
4035 | MODULE_LICENSE("GPL"); |