1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
|
/* $NetBSD: if_kue.c,v 1.119 2022/08/20 14:08:59 riastradh Exp $ */
/*
* Copyright (c) 1997, 1998, 1999, 2000
* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: src/sys/dev/usb/if_kue.c,v 1.14 2000/01/14 01:36:15 wpaul Exp $
*/
/*
* Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver.
*
* Written by Bill Paul <wpaul@ee.columbia.edu>
* Electrical Engineering Department
* Columbia University, New York City
*/
/*
* The KLSI USB to ethernet adapter chip contains an USB serial interface,
* ethernet MAC and embedded microcontroller (called the QT Engine).
* The chip must have firmware loaded into it before it will operate.
* Packets are passed between the chip and host via bulk transfers.
* There is an interrupt endpoint mentioned in the software spec, however
* it's currently unused. This device is 10Mbps half-duplex only, hence
* there is no media selection logic. The MAC supports a 128 entry
* multicast filter, though the exact size of the filter can depend
* on the firmware. Curiously, while the software spec describes various
* ethernet statistics counters, my sample adapter and firmware combination
* claims not to support any statistics counters at all.
*
* Note that once we load the firmware in the device, we have to be
* careful not to load it again: if you restart your computer but
* leave the adapter attached to the USB controller, it may remain
* powered on and retain its firmware. In this case, we don't need
* to load the firmware a second time.
*
* Special thanks to Rob Furr for providing an ADS Technologies
* adapter for development and testing. No monkeys were harmed during
* the development of this driver.
*/
/*
* Ported to NetBSD and somewhat rewritten by Lennart Augustsson.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_kue.c,v 1.119 2022/08/20 14:08:59 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
#include "opt_usb.h"
#endif
#include <sys/param.h>
#include <sys/kmem.h>
#include <dev/usb/usbnet.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#include <dev/usb/if_kuereg.h>
#include <dev/usb/kue_fw.h>
#ifdef KUE_DEBUG
#define DPRINTF(x) if (kuedebug) printf x
#define DPRINTFN(n, x) if (kuedebug >= (n)) printf x
int kuedebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n, x)
#endif
struct kue_type {
uint16_t kue_vid;
uint16_t kue_did;
};
struct kue_softc {
struct usbnet kue_un;
struct kue_ether_desc kue_desc;
uint16_t kue_rxfilt;
uint8_t *kue_mcfilters;
};
#define KUE_MCFILT(x, y) \
(uint8_t *)&(sc->kue_mcfilters[y * ETHER_ADDR_LEN])
#define KUE_BUFSZ 1536
#define KUE_MIN_FRAMELEN 60
#define KUE_RX_LIST_CNT 1
#define KUE_TX_LIST_CNT 1
/*
* Various supported device vendors/products.
*/
static const struct usb_devno kue_devs[] = {
{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 },
{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 },
{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 },
{ USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT },
{ USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BTX },
{ USB_VENDOR_ACTIONTEC, USB_PRODUCT_ACTIONTEC_AR9287 },
{ USB_VENDOR_ALLIEDTELESYN, USB_PRODUCT_ALLIEDTELESYN_AT_USB10 },
{ USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 },
{ USB_VENDOR_ASANTE, USB_PRODUCT_ASANTE_EA },
{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T },
{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_DSB650C },
{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T },
{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C },
{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 },
{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX1 },
{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX2 },
{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT },
{ USB_VENDOR_JATON, USB_PRODUCT_JATON_EDA },
{ USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_XX1 },
{ USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT },
{ USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN },
{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T },
{ USB_VENDOR_MOBILITY, USB_PRODUCT_MOBILITY_EA },
{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 },
{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101X },
{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET },
{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 },
{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 },
{ USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA8 },
{ USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA9 },
{ USB_VENDOR_PORTSMITH, USB_PRODUCT_PORTSMITH_EEA },
{ USB_VENDOR_SHARK, USB_PRODUCT_SHARK_PA },
{ USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_U2E },
{ USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_GPE },
{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB },
};
#define kue_lookup(v, p) (usb_lookup(kue_devs, v, p))
static int kue_match(device_t, cfdata_t, void *);
static void kue_attach(device_t, device_t, void *);
static int kue_detach(device_t, int);
CFATTACH_DECL_NEW(kue, sizeof(struct kue_softc), kue_match, kue_attach,
kue_detach, usbnet_activate);
static void kue_uno_rx_loop(struct usbnet *, struct usbnet_chain *, uint32_t);
static unsigned kue_uno_tx_prepare(struct usbnet *, struct mbuf *,
struct usbnet_chain *);
static void kue_uno_mcast(struct ifnet *);
static int kue_uno_init(struct ifnet *);
static const struct usbnet_ops kue_ops = {
.uno_mcast = kue_uno_mcast,
.uno_tx_prepare = kue_uno_tx_prepare,
.uno_rx_loop = kue_uno_rx_loop,
.uno_init = kue_uno_init,
};
static void kue_reset(struct usbnet *);
static usbd_status kue_ctl(struct usbnet *, int, uint8_t,
uint16_t, void *, uint32_t);
static int kue_load_fw(struct usbnet *);
static usbd_status
kue_setword(struct usbnet *un, uint8_t breq, uint16_t word)
{
usb_device_request_t req;
DPRINTFN(10,("%s: %s: enter\n", device_xname(un->un_dev),__func__));
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = breq;
USETW(req.wValue, word);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
return usbd_do_request(un->un_udev, &req, NULL);
}
static usbd_status
kue_ctl(struct usbnet *un, int rw, uint8_t breq, uint16_t val,
void *data, uint32_t len)
{
usb_device_request_t req;
DPRINTFN(10,("%s: %s: enter, len=%d\n", device_xname(un->un_dev),
__func__, len));
if (rw == KUE_CTL_WRITE)
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
else
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = breq;
USETW(req.wValue, val);
USETW(req.wIndex, 0);
USETW(req.wLength, len);
return usbd_do_request(un->un_udev, &req, data);
}
static int
kue_load_fw(struct usbnet *un)
{
usb_device_descriptor_t dd;
usbd_status err;
DPRINTFN(1,("%s: %s: enter\n", device_xname(un->un_dev), __func__));
/*
* First, check if we even need to load the firmware.
* If the device was still attached when the system was
* rebooted, it may already have firmware loaded in it.
* If this is the case, we don't need to do it again.
* And in fact, if we try to load it again, we'll hang,
* so we have to avoid this condition if we don't want
* to look stupid.
*
* We can test this quickly by checking the bcdRevision
* code. The NIC will return a different revision code if
* it's probed while the firmware is still loaded and
* running.
*/
if (usbd_get_device_desc(un->un_udev, &dd))
return EIO;
if (UGETW(dd.bcdDevice) == KUE_WARM_REV) {
printf("%s: warm boot, no firmware download\n",
device_xname(un->un_dev));
return 0;
}
printf("%s: cold boot, downloading firmware\n",
device_xname(un->un_dev));
/* Load code segment */
DPRINTFN(1,("%s: kue_load_fw: download code_seg\n",
device_xname(un->un_dev)));
/*XXXUNCONST*/
err = kue_ctl(un, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
0, __UNCONST(kue_code_seg), sizeof(kue_code_seg));
if (err) {
printf("%s: failed to load code segment: %s\n",
device_xname(un->un_dev), usbd_errstr(err));
return EIO;
}
/* Load fixup segment */
DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n",
device_xname(un->un_dev)));
/*XXXUNCONST*/
err = kue_ctl(un, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
0, __UNCONST(kue_fix_seg), sizeof(kue_fix_seg));
if (err) {
printf("%s: failed to load fixup segment: %s\n",
device_xname(un->un_dev), usbd_errstr(err));
return EIO;
}
/* Send trigger command. */
DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n",
device_xname(un->un_dev)));
/*XXXUNCONST*/
err = kue_ctl(un, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
0, __UNCONST(kue_trig_seg), sizeof(kue_trig_seg));
if (err) {
printf("%s: failed to load trigger segment: %s\n",
device_xname(un->un_dev), usbd_errstr(err));
return EIO;
}
usbd_delay_ms(un->un_udev, 10);
/*
* Reload device descriptor.
* Why? The chip without the firmware loaded returns
* one revision code. The chip with the firmware
* loaded and running returns a *different* revision
* code. This confuses the quirk mechanism, which is
* dependent on the revision data.
*/
(void)usbd_reload_device_desc(un->un_udev);
DPRINTFN(1,("%s: %s: done\n", device_xname(un->un_dev), __func__));
/* Reset the adapter. */
kue_reset(un);
return 0;
}
static void
kue_uno_mcast(struct ifnet *ifp)
{
struct usbnet * un = ifp->if_softc;
struct ethercom * ec = usbnet_ec(un);
struct kue_softc * sc = usbnet_softc(un);
struct ether_multi *enm;
struct ether_multistep step;
int i;
DPRINTFN(5,("%s: %s: enter\n", device_xname(un->un_dev), __func__));
/* If we want promiscuous mode, set the allframes bit. */
if (usbnet_ispromisc(un))
sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
else
sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC;
if (usbnet_ispromisc(un)) {
ETHER_LOCK(ec);
allmulti:
ec->ec_flags |= ETHER_F_ALLMULTI;
ETHER_UNLOCK(ec);
sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI|KUE_RXFILT_PROMISC;
sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST;
kue_setword(un, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
return;
}
sc->kue_rxfilt &= ~(KUE_RXFILT_ALLMULTI|KUE_RXFILT_PROMISC);
i = 0;
ETHER_LOCK(ec);
ETHER_FIRST_MULTI(step, ec, enm);
while (enm != NULL) {
if (i == KUE_MCFILTCNT(sc) ||
memcmp(enm->enm_addrlo, enm->enm_addrhi,
ETHER_ADDR_LEN) != 0) {
goto allmulti;
}
memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN);
ETHER_NEXT_MULTI(step, enm);
i++;
}
ec->ec_flags &= ~ETHER_F_ALLMULTI;
ETHER_UNLOCK(ec);
sc->kue_rxfilt |= KUE_RXFILT_MULTICAST;
kue_ctl(un, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS,
i, sc->kue_mcfilters, i * ETHER_ADDR_LEN);
kue_setword(un, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
}
/*
* Issue a SET_CONFIGURATION command to reset the MAC. This should be
* done after the firmware is loaded into the adapter in order to
* bring it into proper operation.
*/
static void
kue_reset(struct usbnet *un)
{
DPRINTFN(5,("%s: %s: enter\n", device_xname(un->un_dev), __func__));
if (usbd_set_config_no(un->un_udev, KUE_CONFIG_NO, 1) ||
usbd_device2interface_handle(un->un_udev, KUE_IFACE_IDX,
&un->un_iface))
printf("%s: reset failed\n", device_xname(un->un_dev));
/* Wait a little while for the chip to get its brains in order. */
usbd_delay_ms(un->un_udev, 10);
}
/*
* Probe for a KLSI chip.
*/
static int
kue_match(device_t parent, cfdata_t match, void *aux)
{
struct usb_attach_arg *uaa = aux;
DPRINTFN(25,("kue_match: enter\n"));
return kue_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
}
/*
* Attach the interface. Allocate softc structures, do
* setup and ethernet/BPF attach.
*/
static void
kue_attach(device_t parent, device_t self, void *aux)
{
struct kue_softc *sc = device_private(self);
struct usbnet * const un = &sc->kue_un;
struct usb_attach_arg *uaa = aux;
char *devinfop;
struct usbd_device * dev = uaa->uaa_device;
usbd_status err;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
int i;
KASSERT((void *)sc == un);
DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev));
aprint_naive("\n");
aprint_normal("\n");
devinfop = usbd_devinfo_alloc(dev, 0);
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
un->un_dev = self;
un->un_udev = dev;
un->un_sc = sc;
un->un_ops = &kue_ops;
un->un_rx_xfer_flags = USBD_SHORT_XFER_OK;
un->un_tx_xfer_flags = 0;
un->un_rx_list_cnt = KUE_RX_LIST_CNT;
un->un_tx_list_cnt = KUE_TX_LIST_CNT;
un->un_rx_bufsz = KUE_BUFSZ;
un->un_tx_bufsz = KUE_BUFSZ;
err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1);
if (err) {
aprint_error_dev(self, "failed to set configuration"
", err=%s\n", usbd_errstr(err));
return;
}
/* Load the firmware into the NIC. */
if (kue_load_fw(un)) {
aprint_error_dev(self, "loading firmware failed\n");
return;
}
err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &un->un_iface);
if (err) {
aprint_error_dev(self, "getting interface handle failed\n");
return;
}
id = usbd_get_interface_descriptor(un->un_iface);
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(un->un_iface, i);
if (ed == NULL) {
aprint_error_dev(self, "couldn't get ep %d\n", i);
return;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
un->un_ed[USBNET_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
un->un_ed[USBNET_ENDPT_TX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
/*
* The interrupt endpoint is currently unused by the
* KLSI part.
*/
un->un_ed[USBNET_ENDPT_INTR] = ed->bEndpointAddress;
}
}
if (un->un_ed[USBNET_ENDPT_RX] == 0 ||
un->un_ed[USBNET_ENDPT_TX] == 0) {
aprint_error_dev(self, "missing endpoint\n");
return;
}
/* First level attach, so kue_ctl() works. */
usbnet_attach(un);
/* Read ethernet descriptor */
err = kue_ctl(un, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR,
0, &sc->kue_desc, sizeof(sc->kue_desc));
if (err) {
aprint_error_dev(self, "could not read Ethernet descriptor\n");
return;
}
memcpy(un->un_eaddr, sc->kue_desc.kue_macaddr, sizeof(un->un_eaddr));
sc->kue_mcfilters = kmem_alloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN,
KM_SLEEP);
usbnet_attach_ifp(un, IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST,
0, NULL);
}
static int
kue_detach(device_t self, int flags)
{
struct kue_softc *sc = device_private(self);
if (sc->kue_mcfilters != NULL) {
kmem_free(sc->kue_mcfilters,
KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN);
sc->kue_mcfilters = NULL;
}
return usbnet_detach(self, flags);
}
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
*/
static void
kue_uno_rx_loop(struct usbnet *un, struct usbnet_chain *c, uint32_t total_len)
{
struct ifnet *ifp = usbnet_ifp(un);
uint8_t *buf = c->unc_buf;
unsigned pktlen;
if (total_len <= 1)
return;
DPRINTFN(10,("%s: %s: total_len=%d len=%d\n",
device_xname(un->un_dev), __func__,
total_len, le16dec(buf)));
pktlen = le16dec(buf);
if (pktlen > total_len - ETHER_ALIGN)
pktlen = total_len - ETHER_ALIGN;
if (pktlen < ETHER_MIN_LEN - ETHER_CRC_LEN ||
pktlen > MCLBYTES - ETHER_ALIGN) {
if_statinc(ifp, if_ierrors);
return;
}
DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(un->un_dev),
__func__, pktlen));
usbnet_enqueue(un, buf + 2, pktlen, 0, 0, 0);
}
static unsigned
kue_uno_tx_prepare(struct usbnet *un, struct mbuf *m, struct usbnet_chain *c)
{
unsigned total_len, pkt_len;
pkt_len = m->m_pkthdr.len + 2;
total_len = roundup2(pkt_len, 64);
if ((unsigned)total_len > un->un_tx_bufsz) {
DPRINTFN(10,("%s: %s: too big pktlen %u total %u\n",
device_xname(un->un_dev), __func__, pkt_len, total_len));
return 0;
}
/* Frame length is specified in the first 2 bytes of the buffer. */
le16enc(c->unc_buf, (uint16_t)m->m_pkthdr.len);
/*
* Copy the mbuf data into a contiguous buffer after the frame length,
* possibly zeroing the rest of the buffer.
*/
m_copydata(m, 0, m->m_pkthdr.len, c->unc_buf + 2);
if (total_len - pkt_len > 0)
memset(c->unc_buf + pkt_len, 0, total_len - pkt_len);
DPRINTFN(10,("%s: %s: enter pktlen %u total %u\n",
device_xname(un->un_dev), __func__, pkt_len, total_len));
return total_len;
}
static int
kue_uno_init(struct ifnet *ifp)
{
struct usbnet * const un = ifp->if_softc;
struct kue_softc *sc = usbnet_softc(un);
uint8_t eaddr[ETHER_ADDR_LEN];
DPRINTFN(5,("%s: %s: enter\n", device_xname(un->un_dev),__func__));
memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr));
/* Set MAC address */
kue_ctl(un, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN);
sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST;
/* I'm not sure how to tune these. */
#if 0
/*
* Leave this one alone for now; setting it
* wrong causes lockups on some machines/controllers.
*/
kue_setword(un, KUE_CMD_SET_SOFS, 1);
#endif
kue_setword(un, KUE_CMD_SET_URB_SIZE, 64);
return 0;
}
#ifdef _MODULE
#include "ioconf.c"
#endif
USBNET_MODULE(kue)
|