if_axen.c revision 1.71 1 /* $NetBSD: if_axen.c,v 1.71 2020/03/13 18:17:40 christos Exp $ */
2 /* $OpenBSD: if_axen.c,v 1.3 2013/10/21 10:10:22 yuo Exp $ */
3
4 /*
5 * Copyright (c) 2013 Yojiro UO <yuo (at) openbsd.org>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 /*
21 * ASIX Electronics AX88178a USB 2.0 ethernet and AX88179 USB 3.0 Ethernet
22 * driver.
23 */
24
25 #include <sys/cdefs.h>
26 __KERNEL_RCSID(0, "$NetBSD: if_axen.c,v 1.71 2020/03/13 18:17:40 christos Exp $");
27
28 #ifdef _KERNEL_OPT
29 #include "opt_usb.h"
30 #endif
31
32 #include <sys/param.h>
33
34 #include <netinet/in.h> /* XXX for netinet/ip.h */
35 #include <netinet/ip.h> /* XXX for IP_MAXPACKET */
36
37 #include <dev/usb/usbnet.h>
38
39 #include <dev/usb/if_axenreg.h>
40
41 #ifdef AXEN_DEBUG
42 #define DPRINTF(x) do { if (axendebug) printf x; } while (/*CONSTCOND*/0)
43 #define DPRINTFN(n, x) do { if (axendebug >= (n)) printf x; } while (/*CONSTCOND*/0)
44 int axendebug = 0;
45 #else
46 #define DPRINTF(x)
47 #define DPRINTFN(n, x)
48 #endif
49
50 struct axen_type {
51 struct usb_devno axen_devno;
52 uint16_t axen_flags;
53 #define AX178A 0x0001 /* AX88178a */
54 #define AX179 0x0002 /* AX88179 */
55 };
56
57 /*
58 * Various supported device vendors/products.
59 */
60 static const struct axen_type axen_devs[] = {
61 #if 0 /* not tested */
62 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88178A}, AX178A },
63 #endif
64 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88179}, AX179 },
65 { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUB1312}, AX179 }
66 };
67
68 #define axen_lookup(v, p) ((const struct axen_type *)usb_lookup(axen_devs, v, p))
69
70 static int axen_match(device_t, cfdata_t, void *);
71 static void axen_attach(device_t, device_t, void *);
72
73 CFATTACH_DECL_NEW(axen, sizeof(struct usbnet),
74 axen_match, axen_attach, usbnet_detach, usbnet_activate);
75
76 static int axen_cmd(struct usbnet *, int, int, int, void *);
77 static void axen_reset(struct usbnet *);
78 static int axen_get_eaddr(struct usbnet *, void *);
79 static void axen_ax88179_init(struct usbnet *);
80
81 static void axen_stop_cb(struct ifnet *, int);
82 static int axen_ioctl_cb(struct ifnet *, u_long, void *);
83 static int axen_mii_read_reg(struct usbnet *, int, int, uint16_t *);
84 static int axen_mii_write_reg(struct usbnet *, int, int, uint16_t);
85 static void axen_mii_statchg(struct ifnet *);
86 static void axen_rx_loop(struct usbnet *, struct usbnet_chain *, uint32_t);
87 static unsigned axen_tx_prepare(struct usbnet *, struct mbuf *,
88 struct usbnet_chain *);
89 static int axen_init(struct ifnet *);
90
91 static const struct usbnet_ops axen_ops = {
92 .uno_stop = axen_stop_cb,
93 .uno_ioctl = axen_ioctl_cb,
94 .uno_read_reg = axen_mii_read_reg,
95 .uno_write_reg = axen_mii_write_reg,
96 .uno_statchg = axen_mii_statchg,
97 .uno_tx_prepare = axen_tx_prepare,
98 .uno_rx_loop = axen_rx_loop,
99 .uno_init = axen_init,
100 };
101
102 static int
103 axen_cmd(struct usbnet *un, int cmd, int index, int val, void *buf)
104 {
105 usb_device_request_t req;
106 usbd_status err;
107
108 usbnet_isowned_mii(un);
109
110 if (usbnet_isdying(un))
111 return 0;
112
113 if (AXEN_CMD_DIR(cmd))
114 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
115 else
116 req.bmRequestType = UT_READ_VENDOR_DEVICE;
117 req.bRequest = AXEN_CMD_CMD(cmd);
118 USETW(req.wValue, val);
119 USETW(req.wIndex, index);
120 USETW(req.wLength, AXEN_CMD_LEN(cmd));
121
122 err = usbd_do_request(un->un_udev, &req, buf);
123 DPRINTFN(5, ("axen_cmd: cmd %#04x val %#04x len %d\n",
124 cmd, val, AXEN_CMD_LEN(cmd)));
125
126 if (err) {
127 DPRINTF(("%s: cmd: %d, error: %d\n", __func__, cmd, err));
128 return -1;
129 }
130
131 return 0;
132 }
133
134 static int
135 axen_mii_read_reg(struct usbnet *un, int phy, int reg, uint16_t *val)
136 {
137 uint16_t data;
138
139 if (un->un_phyno != phy)
140 return EINVAL;
141
142 usbd_status err = axen_cmd(un, AXEN_CMD_MII_READ_REG, reg, phy, &data);
143 if (err)
144 return EIO;
145
146 *val = le16toh(data);
147 if (reg == MII_BMSR)
148 *val &= ~BMSR_EXTCAP;
149
150 return 0;
151 }
152
153 static int
154 axen_mii_write_reg(struct usbnet *un, int phy, int reg, uint16_t val)
155 {
156 uint16_t uval = htole16(val);
157
158 if (un->un_phyno != phy)
159 return EINVAL;
160
161 usbd_status err = axen_cmd(un, AXEN_CMD_MII_WRITE_REG, reg, phy, &uval);
162 if (err)
163 return EIO;
164
165 return 0;
166 }
167
168 static void
169 axen_mii_statchg(struct ifnet *ifp)
170 {
171 struct usbnet * const un = ifp->if_softc;
172 struct mii_data * const mii = usbnet_mii(un);
173 int err;
174 uint16_t val;
175 uint16_t wval;
176
177 if (usbnet_isdying(un))
178 return;
179
180 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
181 (IFM_ACTIVE | IFM_AVALID)) {
182 switch (IFM_SUBTYPE(mii->mii_media_active)) {
183 case IFM_10_T:
184 case IFM_100_TX:
185 usbnet_set_link(un, true);
186 break;
187 case IFM_1000_T:
188 usbnet_set_link(un, true);
189 break;
190 default:
191 break;
192 }
193 }
194
195 /* Lost link, do nothing. */
196 if (!usbnet_havelink(un))
197 return;
198
199 val = 0;
200 if ((mii->mii_media_active & IFM_FDX) != 0)
201 val |= AXEN_MEDIUM_FDX;
202
203 val |= AXEN_MEDIUM_RXFLOW_CTRL_EN | AXEN_MEDIUM_TXFLOW_CTRL_EN |
204 AXEN_MEDIUM_RECV_EN;
205 switch (IFM_SUBTYPE(mii->mii_media_active)) {
206 case IFM_1000_T:
207 val |= AXEN_MEDIUM_GIGA | AXEN_MEDIUM_EN_125MHZ;
208 break;
209 case IFM_100_TX:
210 val |= AXEN_MEDIUM_PS;
211 break;
212 case IFM_10_T:
213 /* doesn't need to be handled */
214 break;
215 }
216
217 DPRINTF(("%s: val=%#x\n", __func__, val));
218 wval = htole16(val);
219 usbnet_lock_mii(un);
220 err = axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_MEDIUM_STATUS, &wval);
221 usbnet_unlock_mii(un);
222 if (err)
223 aprint_error_dev(un->un_dev, "media change failed\n");
224 }
225
226 static void
227 axen_setiff_locked(struct usbnet *un)
228 {
229 struct ifnet * const ifp = usbnet_ifp(un);
230 struct ethercom *ec = usbnet_ec(un);
231 struct ether_multi *enm;
232 struct ether_multistep step;
233 uint32_t h = 0;
234 uint16_t rxmode;
235 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
236 uint16_t wval;
237
238 if (usbnet_isdying(un))
239 return;
240
241 usbnet_isowned_mii(un);
242
243 rxmode = 0;
244
245 /* Enable receiver, set RX mode */
246 axen_cmd(un, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval);
247 rxmode = le16toh(wval);
248 rxmode &= ~(AXEN_RXCTL_ACPT_ALL_MCAST | AXEN_RXCTL_PROMISC |
249 AXEN_RXCTL_ACPT_MCAST);
250
251 if (ifp->if_flags & IFF_PROMISC) {
252 DPRINTF(("%s: promisc\n", device_xname(un->un_dev)));
253 rxmode |= AXEN_RXCTL_PROMISC;
254 allmulti:
255 ETHER_LOCK(ec);
256 ec->ec_flags |= ETHER_F_ALLMULTI;
257 ETHER_UNLOCK(ec);
258 rxmode |= AXEN_RXCTL_ACPT_ALL_MCAST
259 /* | AXEN_RXCTL_ACPT_PHY_MCAST */;
260 } else {
261 /* now program new ones */
262 DPRINTF(("%s: initializing hash table\n",
263 device_xname(un->un_dev)));
264 ETHER_LOCK(ec);
265 ec->ec_flags &= ~ETHER_F_ALLMULTI;
266
267 ETHER_FIRST_MULTI(step, ec, enm);
268 while (enm != NULL) {
269 if (memcmp(enm->enm_addrlo, enm->enm_addrhi,
270 ETHER_ADDR_LEN)) {
271 DPRINTF(("%s: allmulti\n",
272 device_xname(un->un_dev)));
273 memset(hashtbl, 0, sizeof(hashtbl));
274 ETHER_UNLOCK(ec);
275 goto allmulti;
276 }
277 h = ether_crc32_be(enm->enm_addrlo,
278 ETHER_ADDR_LEN) >> 26;
279 hashtbl[h / 8] |= 1 << (h % 8);
280 DPRINTF(("%s: %s added\n",
281 device_xname(un->un_dev),
282 ether_sprintf(enm->enm_addrlo)));
283 ETHER_NEXT_MULTI(step, enm);
284 }
285 ETHER_UNLOCK(ec);
286 rxmode |= AXEN_RXCTL_ACPT_MCAST;
287 }
288
289 axen_cmd(un, AXEN_CMD_MAC_WRITE_FILTER, 8, AXEN_FILTER_MULTI, hashtbl);
290 wval = htole16(rxmode);
291 axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval);
292 }
293
294 static void
295 axen_setiff(struct usbnet *un)
296 {
297 usbnet_lock_mii(un);
298 axen_setiff_locked(un);
299 usbnet_unlock_mii(un);
300 }
301
302 static void
303 axen_reset(struct usbnet *un)
304 {
305 usbnet_isowned(un);
306 if (usbnet_isdying(un))
307 return;
308 /* XXX What to reset? */
309
310 /* Wait a little while for the chip to get its brains in order. */
311 DELAY(1000);
312 }
313
314 static int
315 axen_get_eaddr(struct usbnet *un, void *addr)
316 {
317 #if 1
318 return axen_cmd(un, AXEN_CMD_MAC_READ_ETHER, 6, AXEN_CMD_MAC_NODE_ID,
319 addr);
320 #else
321 int i, retry;
322 uint8_t eeprom[20];
323 uint16_t csum;
324 uint16_t buf;
325
326 for (i = 0; i < 6; i++) {
327 /* set eeprom address */
328 buf = htole16(i);
329 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_MAC_EEPROM_ADDR, &buf);
330
331 /* set eeprom command */
332 buf = htole16(AXEN_EEPROM_READ);
333 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_MAC_EEPROM_CMD, &buf);
334
335 /* check the value is ready */
336 retry = 3;
337 do {
338 buf = htole16(AXEN_EEPROM_READ);
339 usbd_delay_ms(un->un_udev, 10);
340 axen_cmd(un, AXEN_CMD_MAC_READ, 1, AXEN_MAC_EEPROM_CMD,
341 &buf);
342 retry--;
343 if (retry < 0)
344 return EINVAL;
345 } while ((le16toh(buf) & 0xff) & AXEN_EEPROM_BUSY);
346
347 /* read data */
348 axen_cmd(un, AXEN_CMD_MAC_READ2, 2, AXEN_EEPROM_READ,
349 &eeprom[i * 2]);
350
351 /* sanity check */
352 if ((i == 0) && (eeprom[0] == 0xff))
353 return EINVAL;
354 }
355
356 /* check checksum */
357 csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];
358 csum = (csum >> 8) + (csum & 0xff) + eeprom[10];
359 if (csum != 0xff) {
360 printf("eeprom checksum mismatch(%#02x)\n", csum);
361 return EINVAL;
362 }
363
364 memcpy(addr, eeprom, ETHER_ADDR_LEN);
365 return 0;
366 #endif
367 }
368
369 static void
370 axen_ax88179_init(struct usbnet *un)
371 {
372 struct axen_qctrl qctrl;
373 uint16_t ctl, temp;
374 uint16_t wval;
375 uint8_t val;
376
377 usbnet_lock_mii(un);
378
379 /* XXX: ? */
380 axen_cmd(un, AXEN_CMD_MAC_READ, 1, AXEN_UNK_05, &val);
381 DPRINTFN(5, ("AXEN_CMD_MAC_READ(0x05): %#02x\n", val));
382
383 /* check AX88179 version, UA1 / UA2 */
384 axen_cmd(un, AXEN_CMD_MAC_READ, 1, AXEN_GENERAL_STATUS, &val);
385 /* UA1 */
386 if (!(val & AXEN_GENERAL_STATUS_MASK)) {
387 DPRINTF(("AX88179 ver. UA1\n"));
388 } else {
389 DPRINTF(("AX88179 ver. UA2\n"));
390 }
391
392 /* power up ethernet PHY */
393 wval = htole16(0);
394 axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval);
395
396 wval = htole16(AXEN_PHYPWR_RSTCTL_IPRL);
397 axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval);
398 usbd_delay_ms(un->un_udev, 200);
399
400 /* set clock mode */
401 val = AXEN_PHYCLK_ACS | AXEN_PHYCLK_BCS;
402 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val);
403 usbd_delay_ms(un->un_udev, 100);
404
405 /* set monitor mode (disable) */
406 val = AXEN_MONITOR_NONE;
407 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_MONITOR_MODE, &val);
408
409 /* enable auto detach */
410 axen_cmd(un, AXEN_CMD_EEPROM_READ, 2, AXEN_EEPROM_STAT, &wval);
411 temp = le16toh(wval);
412 DPRINTFN(2,("EEPROM0x43 = %#04x\n", temp));
413 if (!(temp == 0xffff) && !(temp & 0x0100)) {
414 /* Enable auto detach bit */
415 val = 0;
416 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val);
417 val = AXEN_PHYCLK_ULR;
418 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val);
419 usbd_delay_ms(un->un_udev, 100);
420
421 axen_cmd(un, AXEN_CMD_MAC_READ2, 2, AXEN_PHYPWR_RSTCTL, &wval);
422 ctl = le16toh(wval);
423 ctl |= AXEN_PHYPWR_RSTCTL_AUTODETACH;
424 wval = htole16(ctl);
425 axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval);
426 usbd_delay_ms(un->un_udev, 200);
427 aprint_error_dev(un->un_dev, "enable auto detach (%#04x)\n",
428 ctl);
429 }
430
431 /* bulkin queue setting */
432 axen_cmd(un, AXEN_CMD_MAC_READ, 1, AXEN_USB_UPLINK, &val);
433 switch (val) {
434 case AXEN_USB_FS:
435 DPRINTF(("uplink: USB1.1\n"));
436 qctrl.ctrl = 0x07;
437 qctrl.timer_low = 0xcc;
438 qctrl.timer_high = 0x4c;
439 qctrl.bufsize = AXEN_BUFSZ_LS - 1;
440 qctrl.ifg = 0x08;
441 break;
442 case AXEN_USB_HS:
443 DPRINTF(("uplink: USB2.0\n"));
444 qctrl.ctrl = 0x07;
445 qctrl.timer_low = 0x02;
446 qctrl.timer_high = 0xa0;
447 qctrl.bufsize = AXEN_BUFSZ_HS - 1;
448 qctrl.ifg = 0xff;
449 break;
450 case AXEN_USB_SS:
451 DPRINTF(("uplink: USB3.0\n"));
452 qctrl.ctrl = 0x07;
453 qctrl.timer_low = 0x4f;
454 qctrl.timer_high = 0x00;
455 qctrl.bufsize = AXEN_BUFSZ_SS - 1;
456 qctrl.ifg = 0xff;
457 break;
458 default:
459 aprint_error_dev(un->un_dev, "unknown uplink bus:%#02x\n",
460 val);
461 usbnet_unlock_mii(un);
462 return;
463 }
464 axen_cmd(un, AXEN_CMD_MAC_SET_RXSR, 5, AXEN_RX_BULKIN_QCTRL, &qctrl);
465
466 /*
467 * set buffer high/low watermark to pause/resume.
468 * write 2byte will set high/log simultaneous with AXEN_PAUSE_HIGH.
469 * XXX: what is the best value? OSX driver uses 0x3c-0x4c as LOW-HIGH
470 * watermark parameters.
471 */
472 val = 0x34;
473 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_PAUSE_LOW_WATERMARK, &val);
474 val = 0x52;
475 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_PAUSE_HIGH_WATERMARK, &val);
476
477 /* Set RX/TX configuration. */
478 /* Set RX control register */
479 ctl = AXEN_RXCTL_IPE | AXEN_RXCTL_DROPCRCERR | AXEN_RXCTL_AUTOB;
480 wval = htole16(ctl);
481 axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval);
482
483 /* set monitor mode (enable) */
484 val = AXEN_MONITOR_PMETYPE | AXEN_MONITOR_PMEPOL | AXEN_MONITOR_RWMP;
485 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_MONITOR_MODE, &val);
486 axen_cmd(un, AXEN_CMD_MAC_READ, 1, AXEN_MONITOR_MODE, &val);
487 DPRINTF(("axen: Monitor mode = %#02x\n", val));
488
489 /* set medium type */
490 ctl = AXEN_MEDIUM_GIGA | AXEN_MEDIUM_FDX | AXEN_MEDIUM_EN_125MHZ |
491 AXEN_MEDIUM_RXFLOW_CTRL_EN | AXEN_MEDIUM_TXFLOW_CTRL_EN |
492 AXEN_MEDIUM_RECV_EN;
493 wval = htole16(ctl);
494 DPRINTF(("axen: set to medium mode: %#04x\n", ctl));
495 axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_MEDIUM_STATUS, &wval);
496 usbd_delay_ms(un->un_udev, 100);
497
498 axen_cmd(un, AXEN_CMD_MAC_READ2, 2, AXEN_MEDIUM_STATUS, &wval);
499 DPRINTF(("axen: current medium mode: %#04x\n", le16toh(wval)));
500
501 usbnet_unlock_mii(un);
502
503 #if 0 /* XXX: TBD.... */
504 #define GMII_LED_ACTIVE 0x1a
505 #define GMII_PHY_PAGE_SEL 0x1e
506 #define GMII_PHY_PAGE_SEL 0x1f
507 #define GMII_PAGE_EXT 0x0007
508 usbnet_mii_writereg(un->un_dev, un->un_phyno, GMII_PHY_PAGE_SEL,
509 GMII_PAGE_EXT);
510 usbnet_mii_writereg(un->un_dev, un->un_phyno, GMII_PHY_PAGE,
511 0x002c);
512 #endif
513
514 #if 1 /* XXX: phy hack ? */
515 usbnet_mii_writereg(un->un_dev, un->un_phyno, 0x1F, 0x0005);
516 usbnet_mii_writereg(un->un_dev, un->un_phyno, 0x0C, 0x0000);
517 usbnet_mii_readreg(un->un_dev, un->un_phyno, 0x0001, &wval);
518 usbnet_mii_writereg(un->un_dev, un->un_phyno, 0x01, wval | 0x0080);
519 usbnet_mii_writereg(un->un_dev, un->un_phyno, 0x1F, 0x0000);
520 #endif
521 }
522
523 static void
524 axen_setoe_locked(struct usbnet *un)
525 {
526 struct ifnet * const ifp = usbnet_ifp(un);
527 uint64_t enabled = ifp->if_capenable;
528 uint8_t val;
529
530 usbnet_isowned_mii(un);
531
532 val = AXEN_RXCOE_OFF;
533 if (enabled & IFCAP_CSUM_IPv4_Rx)
534 val |= AXEN_RXCOE_IPv4;
535 if (enabled & IFCAP_CSUM_TCPv4_Rx)
536 val |= AXEN_RXCOE_TCPv4;
537 if (enabled & IFCAP_CSUM_UDPv4_Rx)
538 val |= AXEN_RXCOE_UDPv4;
539 if (enabled & IFCAP_CSUM_TCPv6_Rx)
540 val |= AXEN_RXCOE_TCPv6;
541 if (enabled & IFCAP_CSUM_UDPv6_Rx)
542 val |= AXEN_RXCOE_UDPv6;
543 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_RX_COE, &val);
544
545 val = AXEN_TXCOE_OFF;
546 if (enabled & IFCAP_CSUM_IPv4_Tx)
547 val |= AXEN_TXCOE_IPv4;
548 if (enabled & IFCAP_CSUM_TCPv4_Tx)
549 val |= AXEN_TXCOE_TCPv4;
550 if (enabled & IFCAP_CSUM_UDPv4_Tx)
551 val |= AXEN_TXCOE_UDPv4;
552 if (enabled & IFCAP_CSUM_TCPv6_Tx)
553 val |= AXEN_TXCOE_TCPv6;
554 if (enabled & IFCAP_CSUM_UDPv6_Tx)
555 val |= AXEN_TXCOE_UDPv6;
556 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_TX_COE, &val);
557 }
558
559 static void
560 axen_setoe(struct usbnet *un)
561 {
562
563 usbnet_lock_mii(un);
564 axen_setoe_locked(un);
565 usbnet_unlock_mii(un);
566 }
567
568 static int
569 axen_ioctl_cb(struct ifnet *ifp, u_long cmd, void *data)
570 {
571 struct usbnet * const un = ifp->if_softc;
572
573 switch (cmd) {
574 case SIOCSIFFLAGS:
575 case SIOCSETHERCAP:
576 case SIOCADDMULTI:
577 case SIOCDELMULTI:
578 axen_setiff(un);
579 break;
580 case SIOCSIFCAP:
581 axen_setoe(un);
582 break;
583 default:
584 break;
585 }
586
587 return 0;
588 }
589
590 static int
591 axen_match(device_t parent, cfdata_t match, void *aux)
592 {
593 struct usb_attach_arg *uaa = aux;
594
595 return axen_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ?
596 UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
597 }
598
599 static void
600 axen_attach(device_t parent, device_t self, void *aux)
601 {
602 USBNET_MII_DECL_DEFAULT(unm);
603 struct usbnet * const un = device_private(self);
604 struct usb_attach_arg *uaa = aux;
605 struct usbd_device *dev = uaa->uaa_device;
606 usbd_status err;
607 usb_interface_descriptor_t *id;
608 usb_endpoint_descriptor_t *ed;
609 char *devinfop;
610 uint16_t axen_flags;
611 int i;
612
613 aprint_naive("\n");
614 aprint_normal("\n");
615 devinfop = usbd_devinfo_alloc(dev, 0);
616 aprint_normal_dev(self, "%s\n", devinfop);
617 usbd_devinfo_free(devinfop);
618
619 un->un_dev = self;
620 un->un_udev = dev;
621 un->un_sc = un;
622 un->un_ops = &axen_ops;
623 un->un_rx_xfer_flags = USBD_SHORT_XFER_OK;
624 un->un_tx_xfer_flags = USBD_FORCE_SHORT_XFER;
625 un->un_rx_list_cnt = AXEN_RX_LIST_CNT;
626 un->un_tx_list_cnt = AXEN_TX_LIST_CNT;
627
628 err = usbd_set_config_no(dev, AXEN_CONFIG_NO, 1);
629 if (err) {
630 aprint_error_dev(self, "failed to set configuration"
631 ", err=%s\n", usbd_errstr(err));
632 return;
633 }
634
635 axen_flags = axen_lookup(uaa->uaa_vendor, uaa->uaa_product)->axen_flags;
636
637 err = usbd_device2interface_handle(dev, AXEN_IFACE_IDX, &un->un_iface);
638 if (err) {
639 aprint_error_dev(self, "getting interface handle failed\n");
640 return;
641 }
642
643 /* decide on what our bufsize will be */
644 switch (dev->ud_speed) {
645 case USB_SPEED_SUPER:
646 un->un_rx_bufsz = AXEN_BUFSZ_SS * 1024;
647 break;
648 case USB_SPEED_HIGH:
649 un->un_rx_bufsz = AXEN_BUFSZ_HS * 1024;
650 break;
651 default:
652 un->un_rx_bufsz = AXEN_BUFSZ_LS * 1024;
653 break;
654 }
655 un->un_tx_bufsz = IP_MAXPACKET + ETHER_HDR_LEN + ETHER_CRC_LEN +
656 ETHER_VLAN_ENCAP_LEN + sizeof(struct axen_sframe_hdr);
657
658 /* Find endpoints. */
659 id = usbd_get_interface_descriptor(un->un_iface);
660 for (i = 0; i < id->bNumEndpoints; i++) {
661 ed = usbd_interface2endpoint_descriptor(un->un_iface, i);
662 if (!ed) {
663 aprint_error_dev(self, "couldn't get ep %d\n", i);
664 return;
665 }
666 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
667 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
668 un->un_ed[USBNET_ENDPT_RX] = ed->bEndpointAddress;
669 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
670 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
671 un->un_ed[USBNET_ENDPT_TX] = ed->bEndpointAddress;
672 #if 0 /* not used yet */
673 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
674 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
675 un->un_ed[USBNET_ENDPT_INTR] = ed->bEndpointAddress;
676 #endif
677 }
678 }
679
680 /* Set these up now for axen_cmd(). */
681 usbnet_attach(un, "axendet");
682
683 un->un_phyno = AXEN_PHY_ID;
684 DPRINTF(("%s: phyno %d\n", device_xname(self), un->un_phyno));
685
686 /* Get station address. */
687 usbnet_lock_mii(un);
688 if (axen_get_eaddr(un, &un->un_eaddr)) {
689 usbnet_unlock_mii(un);
690 printf("EEPROM checksum error\n");
691 return;
692 }
693 usbnet_unlock_mii(un);
694
695 axen_ax88179_init(un);
696
697 /* An ASIX chip was detected. Inform the world. */
698 if (axen_flags & AX178A)
699 aprint_normal_dev(self, "AX88178a\n");
700 else if (axen_flags & AX179)
701 aprint_normal_dev(self, "AX88179\n");
702 else
703 aprint_normal_dev(self, "(unknown)\n");
704
705 struct ethercom *ec = usbnet_ec(un);
706 ec->ec_capabilities = ETHERCAP_VLAN_MTU;
707
708 /* Adapter does not support TSOv6 (They call it LSOv2). */
709 struct ifnet *ifp = usbnet_ifp(un);
710 ifp->if_capabilities |= IFCAP_TSOv4 |
711 IFCAP_CSUM_IPv4_Rx | IFCAP_CSUM_IPv4_Tx |
712 IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_TCPv4_Tx |
713 IFCAP_CSUM_UDPv4_Rx | IFCAP_CSUM_UDPv4_Tx |
714 IFCAP_CSUM_TCPv6_Rx | IFCAP_CSUM_TCPv6_Tx |
715 IFCAP_CSUM_UDPv6_Rx | IFCAP_CSUM_UDPv6_Tx;
716
717 usbnet_attach_ifp(un, IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST,
718 0, &unm);
719 }
720
721 static int
722 axen_csum_flags_rx(struct ifnet *ifp, uint32_t pkt_hdr)
723 {
724 int enabled_flags = ifp->if_csum_flags_rx;
725 int csum_flags = 0;
726 int l3_type, l4_type;
727
728 if (enabled_flags == 0)
729 return 0;
730
731 l3_type = (pkt_hdr & AXEN_RXHDR_L3_TYPE_MASK) >>
732 AXEN_RXHDR_L3_TYPE_OFFSET;
733
734 if (l3_type == AXEN_RXHDR_L3_TYPE_IPV4)
735 csum_flags |= M_CSUM_IPv4;
736
737 l4_type = (pkt_hdr & AXEN_RXHDR_L4_TYPE_MASK) >>
738 AXEN_RXHDR_L4_TYPE_OFFSET;
739
740 switch (l4_type) {
741 case AXEN_RXHDR_L4_TYPE_TCP:
742 if (l3_type == AXEN_RXHDR_L3_TYPE_IPV4)
743 csum_flags |= M_CSUM_TCPv4;
744 else
745 csum_flags |= M_CSUM_TCPv6;
746 break;
747 case AXEN_RXHDR_L4_TYPE_UDP:
748 if (l3_type == AXEN_RXHDR_L3_TYPE_IPV4)
749 csum_flags |= M_CSUM_UDPv4;
750 else
751 csum_flags |= M_CSUM_UDPv6;
752 break;
753 default:
754 break;
755 }
756
757 csum_flags &= enabled_flags;
758 if ((csum_flags & M_CSUM_IPv4) && (pkt_hdr & AXEN_RXHDR_L3CSUM_ERR))
759 csum_flags |= M_CSUM_IPv4_BAD;
760 if ((csum_flags & ~M_CSUM_IPv4) && (pkt_hdr & AXEN_RXHDR_L4CSUM_ERR))
761 csum_flags |= M_CSUM_TCP_UDP_BAD;
762
763 return csum_flags;
764 }
765
766 static void
767 axen_rx_loop(struct usbnet *un, struct usbnet_chain *c, uint32_t total_len)
768 {
769 struct ifnet *ifp = usbnet_ifp(un);
770 uint8_t *buf = c->unc_buf;
771 uint32_t rx_hdr, pkt_hdr;
772 uint32_t *hdr_p;
773 uint16_t hdr_offset, pkt_count;
774 size_t pkt_len;
775 size_t temp;
776
777 usbnet_isowned_rx(un);
778
779 if (total_len < sizeof(pkt_hdr)) {
780 aprint_error_dev(un->un_dev, "rxeof: too short transfer\n");
781 if_statinc(ifp, if_ierrors);
782 return;
783 }
784
785 /*
786 * buffer map
787 * [packet #0]...[packet #n][pkt hdr#0]..[pkt hdr#n][recv_hdr]
788 * each packet has 0xeeee as psuedo header..
789 */
790 hdr_p = (uint32_t *)(buf + total_len - sizeof(uint32_t));
791 rx_hdr = le32toh(*hdr_p);
792 hdr_offset = (uint16_t)(rx_hdr >> 16);
793 pkt_count = (uint16_t)(rx_hdr & 0xffff);
794
795 /* sanity check */
796 if (hdr_offset > total_len) {
797 aprint_error_dev(un->un_dev,
798 "rxeof: invalid hdr offset (%u > %u)\n",
799 hdr_offset, total_len);
800 if_statinc(ifp, if_ierrors);
801 usbd_delay_ms(un->un_udev, 100);
802 return;
803 }
804
805 /* point first packet header */
806 hdr_p = (uint32_t *)(buf + hdr_offset);
807
808 /*
809 * ax88179 will pack multiple ip packet to a USB transaction.
810 * process all of packets in the buffer
811 */
812
813 #if 1 /* XXX: paranoiac check. need to remove later */
814 #define AXEN_MAX_PACKED_PACKET 200
815 if (pkt_count > AXEN_MAX_PACKED_PACKET) {
816 DPRINTF(("%s: Too many packets (%d) in a transaction, discard.\n",
817 device_xname(un->un_dev), pkt_count));
818 return;
819 }
820 #endif
821
822 if (pkt_count)
823 rnd_add_uint32(usbnet_rndsrc(un), pkt_count);
824
825 do {
826 if ((buf[0] != 0xee) || (buf[1] != 0xee)) {
827 aprint_error_dev(un->un_dev,
828 "invalid buffer(pkt#%d), continue\n", pkt_count);
829 if_statadd(ifp, if_ierrors, pkt_count);
830 return;
831 }
832
833 pkt_hdr = le32toh(*hdr_p);
834 pkt_len = (pkt_hdr >> 16) & 0x1fff;
835 DPRINTFN(10,
836 ("%s: rxeof: packet#%d, pkt_hdr %#08x, pkt_len %zu\n",
837 device_xname(un->un_dev), pkt_count, pkt_hdr, pkt_len));
838
839 if (pkt_hdr & (AXEN_RXHDR_CRC_ERR | AXEN_RXHDR_DROP_ERR)) {
840 if_statinc(ifp, if_ierrors);
841 /* move to next pkt header */
842 DPRINTF(("%s: %s err (pkt#%d)\n",
843 device_xname(un->un_dev),
844 (pkt_hdr & AXEN_RXHDR_CRC_ERR) ? "crc" : "drop",
845 pkt_count));
846 goto nextpkt;
847 }
848
849 usbnet_enqueue(un, buf + ETHER_ALIGN, pkt_len - 6,
850 axen_csum_flags_rx(ifp, pkt_hdr), 0, 0);
851
852 nextpkt:
853 /*
854 * prepare next packet
855 * as each packet will be aligned 8byte boundary,
856 * need to fix up the start point of the buffer.
857 */
858 temp = ((pkt_len + 7) & 0xfff8);
859 buf = buf + temp;
860 hdr_p++;
861 pkt_count--;
862 } while (pkt_count > 0);
863 }
864
865 static unsigned
866 axen_tx_prepare(struct usbnet *un, struct mbuf *m, struct usbnet_chain *c)
867 {
868 struct axen_sframe_hdr hdr;
869 u_int length, boundary;
870
871 usbnet_isowned_tx(un);
872
873 if ((unsigned)m->m_pkthdr.len > un->un_tx_bufsz - sizeof(hdr))
874 return 0;
875 length = m->m_pkthdr.len + sizeof(hdr);
876
877 /* XXX Is this needed? wMaxPacketSize? */
878 switch (un->un_udev->ud_speed) {
879 case USB_SPEED_SUPER:
880 boundary = 4096;
881 break;
882 case USB_SPEED_HIGH:
883 boundary = 512;
884 break;
885 default:
886 boundary = 64;
887 break;
888 }
889
890 hdr.plen = htole32(m->m_pkthdr.len);
891
892 hdr.gso = (m->m_pkthdr.csum_flags & M_CSUM_TSOv4) ?
893 m->m_pkthdr.segsz : 0;
894 if ((length % boundary) == 0) {
895 DPRINTF(("%s: boundary hit\n", device_xname(un->un_dev)));
896 hdr.gso |= 0x80008000; /* XXX enable padding */
897 }
898 hdr.gso = htole32(hdr.gso);
899
900 memcpy(c->unc_buf, &hdr, sizeof(hdr));
901 m_copydata(m, 0, m->m_pkthdr.len, c->unc_buf + sizeof(hdr));
902
903 return length;
904 }
905
906 static int
907 axen_init_locked(struct ifnet *ifp)
908 {
909 struct usbnet * const un = ifp->if_softc;
910 uint16_t rxmode;
911 uint16_t wval;
912 uint8_t bval;
913
914 usbnet_isowned(un);
915
916 if (usbnet_isdying(un))
917 return EIO;
918
919 /* Cancel pending I/O */
920 usbnet_stop(un, ifp, 1);
921
922 /* Reset the ethernet interface. */
923 axen_reset(un);
924
925 usbnet_lock_mii_un_locked(un);
926
927 /* XXX: ? */
928 bval = 0x01;
929 axen_cmd(un, AXEN_CMD_MAC_WRITE, 1, AXEN_UNK_28, &bval);
930
931 /* Configure offloading engine. */
932 axen_setoe_locked(un);
933
934 /* Program promiscuous mode and multicast filters. */
935 axen_setiff_locked(un);
936
937 /* Enable receiver, set RX mode */
938 axen_cmd(un, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval);
939 rxmode = le16toh(wval);
940 rxmode |= AXEN_RXCTL_START;
941 wval = htole16(rxmode);
942 axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval);
943
944 usbnet_unlock_mii_un_locked(un);
945
946 return usbnet_init_rx_tx(un);
947 }
948
949 static int
950 axen_init(struct ifnet *ifp)
951 {
952 struct usbnet * const un = ifp->if_softc;
953
954 usbnet_lock(un);
955 int ret = axen_init_locked(ifp);
956 usbnet_unlock(un);
957
958 return ret;
959 }
960
961 static void
962 axen_stop_cb(struct ifnet *ifp, int disable)
963 {
964 struct usbnet * const un = ifp->if_softc;
965 uint16_t rxmode, wval;
966
967 axen_reset(un);
968
969 /* Disable receiver, set RX mode */
970 usbnet_lock_mii_un_locked(un);
971 axen_cmd(un, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval);
972 rxmode = le16toh(wval);
973 rxmode &= ~AXEN_RXCTL_START;
974 wval = htole16(rxmode);
975 axen_cmd(un, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval);
976 usbnet_unlock_mii_un_locked(un);
977 }
978
979 #ifdef _MODULE
980 #include "ioconf.c"
981 #endif
982
983 USBNET_MODULE(axen)
984