xref: /dragonfly/sys/dev/netif/txp/if_txp.c (revision 685c703c)
1 /*	$OpenBSD: if_txp.c,v 1.48 2001/06/27 06:34:50 kjc Exp $	*/
2 /*	$FreeBSD: src/sys/dev/txp/if_txp.c,v 1.4.2.4 2001/12/14 19:50:43 jlemon Exp $ */
3 /*	$DragonFly: src/sys/dev/netif/txp/if_txp.c,v 1.37 2006/08/03 16:40:47 swildner Exp $ */
4 
5 /*
6  * Copyright (c) 2001
7  *	Jason L. Wright <jason@thought.net>, Theo de Raadt, and
8  *	Aaron Campbell <aaron@monkey.org>.  All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by Jason L. Wright,
21  *	Theo de Raadt and Aaron Campbell.
22  * 4. Neither the name of the author nor the names of any co-contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
27  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
28  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
36  * THE POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 /*
40  * Driver for 3c990 (Typhoon) Ethernet ASIC
41  */
42 
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/sockio.h>
46 #include <sys/mbuf.h>
47 #include <sys/malloc.h>
48 #include <sys/kernel.h>
49 #include <sys/socket.h>
50 #include <sys/serialize.h>
51 #include <sys/thread2.h>
52 
53 #include <net/if.h>
54 #include <net/ifq_var.h>
55 #include <net/if_arp.h>
56 #include <net/ethernet.h>
57 #include <net/if_dl.h>
58 #include <net/if_types.h>
59 #include <net/vlan/if_vlan_var.h>
60 
61 #include <netinet/in.h>
62 #include <netinet/in_systm.h>
63 #include <netinet/in_var.h>
64 #include <netinet/ip.h>
65 #include <netinet/if_ether.h>
66 #include <sys/in_cksum.h>
67 
68 #include <net/if_media.h>
69 
70 #include <net/bpf.h>
71 
72 #include <vm/vm.h>              /* for vtophys */
73 #include <vm/pmap.h>            /* for vtophys */
74 #include <machine/bus_pio.h>
75 #include <machine/bus_memio.h>
76 #include <machine/bus.h>
77 #include <machine/resource.h>
78 #include <sys/bus.h>
79 #include <sys/rman.h>
80 
81 #include "../mii_layer/mii.h"
82 #include "../mii_layer/miivar.h"
83 
84 #include <bus/pci/pcidevs.h>
85 #include <bus/pci/pcireg.h>
86 #include <bus/pci/pcivar.h>
87 
88 #define TXP_USEIOSPACE
89 #define __STRICT_ALIGNMENT
90 
91 #include "if_txpreg.h"
92 #include "3c990img.h"
93 
94 /*
95  * Various supported device vendors/types and their names.
96  */
97 static struct txp_type txp_devs[] = {
98 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CR990TX95,
99 	    "3Com 3cR990-TX-95 Etherlink with 3XP Processor" },
100 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CR990TX97,
101 	    "3Com 3cR990-TX-97 Etherlink with 3XP Processor" },
102 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C990B,
103 	    "3Com 3cR990B-TXM Etherlink with 3XP Processor" },
104 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CR990SVR95,
105 	    "3Com 3cR990-SRV-95 Etherlink Server with 3XP Processor" },
106 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CR990SVR97,
107 	    "3Com 3cR990-SRV-97 Etherlink Server with 3XP Processor" },
108 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C990BSVR,
109 	    "3Com 3cR990B-SRV Etherlink Server with 3XP Processor" },
110 	{ 0, 0, NULL }
111 };
112 
113 static int txp_probe	(device_t);
114 static int txp_attach	(device_t);
115 static int txp_detach	(device_t);
116 static void txp_intr	(void *);
117 static void txp_tick	(void *);
118 static int txp_shutdown	(device_t);
119 static int txp_ioctl	(struct ifnet *, u_long, caddr_t, struct ucred *);
120 static void txp_start	(struct ifnet *);
121 static void txp_stop	(struct txp_softc *);
122 static void txp_init	(void *);
123 static void txp_watchdog	(struct ifnet *);
124 
125 static void txp_release_resources (device_t);
126 static int txp_chip_init (struct txp_softc *);
127 static int txp_reset_adapter (struct txp_softc *);
128 static int txp_download_fw (struct txp_softc *);
129 static int txp_download_fw_wait (struct txp_softc *);
130 static int txp_download_fw_section (struct txp_softc *,
131     struct txp_fw_section_header *, int);
132 static int txp_alloc_rings (struct txp_softc *);
133 static int txp_rxring_fill (struct txp_softc *);
134 static void txp_rxring_empty (struct txp_softc *);
135 static void txp_set_filter (struct txp_softc *);
136 
137 static int txp_cmd_desc_numfree (struct txp_softc *);
138 static int txp_command (struct txp_softc *, u_int16_t, u_int16_t, u_int32_t,
139     u_int32_t, u_int16_t *, u_int32_t *, u_int32_t *, int);
140 static int txp_command2 (struct txp_softc *, u_int16_t, u_int16_t,
141     u_int32_t, u_int32_t, struct txp_ext_desc *, u_int8_t,
142     struct txp_rsp_desc **, int);
143 static int txp_response (struct txp_softc *, u_int32_t, u_int16_t, u_int16_t,
144     struct txp_rsp_desc **);
145 static void txp_rsp_fixup (struct txp_softc *, struct txp_rsp_desc *,
146     struct txp_rsp_desc *);
147 static void txp_capabilities (struct txp_softc *);
148 
149 static void txp_ifmedia_sts (struct ifnet *, struct ifmediareq *);
150 static int txp_ifmedia_upd (struct ifnet *);
151 #ifdef TXP_DEBUG
152 static void txp_show_descriptor (void *);
153 #endif
154 static void txp_tx_reclaim (struct txp_softc *, struct txp_tx_ring *);
155 static void txp_rxbuf_reclaim (struct txp_softc *);
156 static void txp_rx_reclaim (struct txp_softc *, struct txp_rx_ring *);
157 
158 #ifdef TXP_USEIOSPACE
159 #define TXP_RES			SYS_RES_IOPORT
160 #define TXP_RID			TXP_PCI_LOIO
161 #else
162 #define TXP_RES			SYS_RES_MEMORY
163 #define TXP_RID			TXP_PCI_LOMEM
164 #endif
165 
166 static device_method_t txp_methods[] = {
167         /* Device interface */
168 	DEVMETHOD(device_probe,		txp_probe),
169 	DEVMETHOD(device_attach,	txp_attach),
170 	DEVMETHOD(device_detach,	txp_detach),
171 	DEVMETHOD(device_shutdown,	txp_shutdown),
172 	{ 0, 0 }
173 };
174 
175 static driver_t txp_driver = {
176 	"txp",
177 	txp_methods,
178 	sizeof(struct txp_softc)
179 };
180 
181 static devclass_t txp_devclass;
182 
183 DECLARE_DUMMY_MODULE(if_txp);
184 DRIVER_MODULE(if_txp, pci, txp_driver, txp_devclass, 0, 0);
185 
186 static int
187 txp_probe(device_t dev)
188 {
189 	struct txp_type *t;
190 	uint16_t vid, did;
191 
192 	vid = pci_get_vendor(dev);
193 	did = pci_get_device(dev);
194 
195 	for (t = txp_devs; t->txp_name != NULL; ++t) {
196 		if ((vid == t->txp_vid) && (did == t->txp_did)) {
197 			device_set_desc(dev, t->txp_name);
198 			return(0);
199 		}
200 	}
201 
202 	return(ENXIO);
203 }
204 
205 static int
206 txp_attach(device_t dev)
207 {
208 	struct txp_softc *sc;
209 	struct ifnet *ifp;
210 	uint16_t p1;
211 	uint32_t p2;
212 	uint8_t enaddr[ETHER_ADDR_LEN];
213 	int error = 0, rid;
214 
215 	sc = device_get_softc(dev);
216 	callout_init(&sc->txp_stat_timer);
217 
218 	ifp = &sc->sc_arpcom.ac_if;
219 	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
220 
221 	pci_enable_busmaster(dev);
222 
223 	rid = TXP_RID;
224 	sc->sc_res = bus_alloc_resource_any(dev, TXP_RES, &rid, RF_ACTIVE);
225 
226 	if (sc->sc_res == NULL) {
227 		device_printf(dev, "couldn't map ports/memory\n");
228 		return(ENXIO);
229 	}
230 
231 	sc->sc_bt = rman_get_bustag(sc->sc_res);
232 	sc->sc_bh = rman_get_bushandle(sc->sc_res);
233 
234 	/* Allocate interrupt */
235 	rid = 0;
236 	sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
237 	    RF_SHAREABLE | RF_ACTIVE);
238 
239 	if (sc->sc_irq == NULL) {
240 		device_printf(dev, "couldn't map interrupt\n");
241 		error = ENXIO;
242 		goto fail;
243 	}
244 
245 	if (txp_chip_init(sc)) {
246 		error = ENXIO;
247 		goto fail;
248 	}
249 
250 	sc->sc_fwbuf = contigmalloc(32768, M_DEVBUF,
251 	    M_WAITOK, 0, 0xffffffff, PAGE_SIZE, 0);
252 	error = txp_download_fw(sc);
253 	contigfree(sc->sc_fwbuf, 32768, M_DEVBUF);
254 	sc->sc_fwbuf = NULL;
255 
256 	if (error)
257 		goto fail;
258 
259 	sc->sc_ldata = contigmalloc(sizeof(struct txp_ldata), M_DEVBUF,
260 	    M_WAITOK, 0, 0xffffffff, PAGE_SIZE, 0);
261 	bzero(sc->sc_ldata, sizeof(struct txp_ldata));
262 
263 	if (txp_alloc_rings(sc)) {
264 		error = ENXIO;
265 		goto fail;
266 	}
267 
268 	if (txp_command(sc, TXP_CMD_MAX_PKT_SIZE_WRITE, TXP_MAX_PKTLEN, 0, 0,
269 	    NULL, NULL, NULL, 1)) {
270 		error = ENXIO;
271 		goto fail;
272 	}
273 
274 	if (txp_command(sc, TXP_CMD_STATION_ADDRESS_READ, 0, 0, 0,
275 	    &p1, &p2, NULL, 1)) {
276 		error = ENXIO;
277 		goto fail;
278 	}
279 
280 	txp_set_filter(sc);
281 
282 	enaddr[0] = ((uint8_t *)&p1)[1];
283 	enaddr[1] = ((uint8_t *)&p1)[0];
284 	enaddr[2] = ((uint8_t *)&p2)[3];
285 	enaddr[3] = ((uint8_t *)&p2)[2];
286 	enaddr[4] = ((uint8_t *)&p2)[1];
287 	enaddr[5] = ((uint8_t *)&p2)[0];
288 
289 	ifmedia_init(&sc->sc_ifmedia, 0, txp_ifmedia_upd, txp_ifmedia_sts);
290 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
291 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
292 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
293 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
294 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX|IFM_HDX, 0, NULL);
295 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
296 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
297 
298 	sc->sc_xcvr = TXP_XCVR_AUTO;
299 	txp_command(sc, TXP_CMD_XCVR_SELECT, TXP_XCVR_AUTO, 0, 0,
300 	    NULL, NULL, NULL, 0);
301 	ifmedia_set(&sc->sc_ifmedia, IFM_ETHER|IFM_AUTO);
302 
303 	ifp->if_softc = sc;
304 	ifp->if_mtu = ETHERMTU;
305 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
306 	ifp->if_ioctl = txp_ioctl;
307 	ifp->if_start = txp_start;
308 	ifp->if_watchdog = txp_watchdog;
309 	ifp->if_init = txp_init;
310 	ifp->if_baudrate = 100000000;
311 	ifq_set_maxlen(&ifp->if_snd, TX_ENTRIES);
312 	ifq_set_ready(&ifp->if_snd);
313 	ifp->if_hwassist = 0;
314 	txp_capabilities(sc);
315 
316 	ether_ifattach(ifp, enaddr, NULL);
317 
318 	error = bus_setup_intr(dev, sc->sc_irq, INTR_NETSAFE,
319 			       txp_intr, sc, &sc->sc_intrhand,
320 			       ifp->if_serializer);
321 	if (error) {
322 		device_printf(dev, "couldn't set up irq\n");
323 		ether_ifdetach(ifp);
324 		goto fail;
325 	}
326 
327 	return(0);
328 
329 fail:
330 	txp_release_resources(dev);
331 	return(error);
332 }
333 
334 static int
335 txp_detach(device_t dev)
336 {
337 	struct txp_softc *sc = device_get_softc(dev);
338 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
339 	int i;
340 
341 	lwkt_serialize_enter(ifp->if_serializer);
342 
343 	txp_stop(sc);
344 	txp_shutdown(dev);
345 	bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand);
346 
347 	lwkt_serialize_exit(ifp->if_serializer);
348 
349 	ifmedia_removeall(&sc->sc_ifmedia);
350 	ether_ifdetach(ifp);
351 
352 	for (i = 0; i < RXBUF_ENTRIES; i++)
353 		free(sc->sc_rxbufs[i].rb_sd, M_DEVBUF);
354 
355 	txp_release_resources(dev);
356 
357 	return(0);
358 }
359 
360 static void
361 txp_release_resources(device_t dev)
362 {
363 	struct txp_softc *sc;
364 
365 	sc = device_get_softc(dev);
366 
367 	if (sc->sc_irq != NULL)
368 		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
369 
370 	if (sc->sc_res != NULL)
371 		bus_release_resource(dev, TXP_RES, TXP_RID, sc->sc_res);
372 
373 	if (sc->sc_ldata != NULL)
374 		contigfree(sc->sc_ldata, sizeof(struct txp_ldata), M_DEVBUF);
375 
376 	return;
377 }
378 
379 static int
380 txp_chip_init(struct txp_softc *sc)
381 {
382 	/* disable interrupts */
383 	WRITE_REG(sc, TXP_IER, 0);
384 	WRITE_REG(sc, TXP_IMR,
385 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
386 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
387 	    TXP_INT_LATCH);
388 
389 	/* ack all interrupts */
390 	WRITE_REG(sc, TXP_ISR, TXP_INT_RESERVED | TXP_INT_LATCH |
391 	    TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
392 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
393 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
394 	    TXP_INT_A2H_3 | TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0);
395 
396 	if (txp_reset_adapter(sc))
397 		return (-1);
398 
399 	/* disable interrupts */
400 	WRITE_REG(sc, TXP_IER, 0);
401 	WRITE_REG(sc, TXP_IMR,
402 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
403 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
404 	    TXP_INT_LATCH);
405 
406 	/* ack all interrupts */
407 	WRITE_REG(sc, TXP_ISR, TXP_INT_RESERVED | TXP_INT_LATCH |
408 	    TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
409 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
410 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
411 	    TXP_INT_A2H_3 | TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0);
412 
413 	return (0);
414 }
415 
416 static int
417 txp_reset_adapter(struct txp_softc *sc)
418 {
419 	u_int32_t r;
420 	int i;
421 
422 	WRITE_REG(sc, TXP_SRR, TXP_SRR_ALL);
423 	DELAY(1000);
424 	WRITE_REG(sc, TXP_SRR, 0);
425 
426 	/* Should wait max 6 seconds */
427 	for (i = 0; i < 6000; i++) {
428 		r = READ_REG(sc, TXP_A2H_0);
429 		if (r == STAT_WAITING_FOR_HOST_REQUEST)
430 			break;
431 		DELAY(1000);
432 	}
433 
434 	if (r != STAT_WAITING_FOR_HOST_REQUEST) {
435 		if_printf(&sc->sc_arpcom.ac_if, "reset hung\n");
436 		return (-1);
437 	}
438 
439 	return (0);
440 }
441 
442 static int
443 txp_download_fw(struct txp_softc *sc)
444 {
445 	struct txp_fw_file_header *fileheader;
446 	struct txp_fw_section_header *secthead;
447 	int sect;
448 	u_int32_t r, i, ier, imr;
449 
450 	ier = READ_REG(sc, TXP_IER);
451 	WRITE_REG(sc, TXP_IER, ier | TXP_INT_A2H_0);
452 
453 	imr = READ_REG(sc, TXP_IMR);
454 	WRITE_REG(sc, TXP_IMR, imr | TXP_INT_A2H_0);
455 
456 	for (i = 0; i < 10000; i++) {
457 		r = READ_REG(sc, TXP_A2H_0);
458 		if (r == STAT_WAITING_FOR_HOST_REQUEST)
459 			break;
460 		DELAY(50);
461 	}
462 	if (r != STAT_WAITING_FOR_HOST_REQUEST) {
463 		if_printf(&sc->sc_arpcom.ac_if,
464 			  "not waiting for host request\n");
465 		return (-1);
466 	}
467 
468 	/* Ack the status */
469 	WRITE_REG(sc, TXP_ISR, TXP_INT_A2H_0);
470 
471 	fileheader = (struct txp_fw_file_header *)tc990image;
472 	if (bcmp("TYPHOON", fileheader->magicid, sizeof(fileheader->magicid))) {
473 		if_printf(&sc->sc_arpcom.ac_if, "fw invalid magic\n");
474 		return (-1);
475 	}
476 
477 	/* Tell boot firmware to get ready for image */
478 	WRITE_REG(sc, TXP_H2A_1, fileheader->addr);
479 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_RUNTIME_IMAGE);
480 
481 	if (txp_download_fw_wait(sc)) {
482 		if_printf(&sc->sc_arpcom.ac_if, "fw wait failed, initial\n");
483 		return (-1);
484 	}
485 
486 	secthead = (struct txp_fw_section_header *)(((u_int8_t *)tc990image) +
487 	    sizeof(struct txp_fw_file_header));
488 
489 	for (sect = 0; sect < fileheader->nsections; sect++) {
490 		if (txp_download_fw_section(sc, secthead, sect))
491 			return (-1);
492 		secthead = (struct txp_fw_section_header *)
493 		    (((u_int8_t *)secthead) + secthead->nbytes +
494 		    sizeof(*secthead));
495 	}
496 
497 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_DOWNLOAD_COMPLETE);
498 
499 	for (i = 0; i < 10000; i++) {
500 		r = READ_REG(sc, TXP_A2H_0);
501 		if (r == STAT_WAITING_FOR_BOOT)
502 			break;
503 		DELAY(50);
504 	}
505 	if (r != STAT_WAITING_FOR_BOOT) {
506 		if_printf(&sc->sc_arpcom.ac_if, "not waiting for boot\n");
507 		return (-1);
508 	}
509 
510 	WRITE_REG(sc, TXP_IER, ier);
511 	WRITE_REG(sc, TXP_IMR, imr);
512 
513 	return (0);
514 }
515 
516 static int
517 txp_download_fw_wait(struct txp_softc *sc)
518 {
519 	u_int32_t i, r;
520 
521 	for (i = 0; i < 10000; i++) {
522 		r = READ_REG(sc, TXP_ISR);
523 		if (r & TXP_INT_A2H_0)
524 			break;
525 		DELAY(50);
526 	}
527 
528 	if (!(r & TXP_INT_A2H_0)) {
529 		if_printf(&sc->sc_arpcom.ac_if, "fw wait failed comm0\n");
530 		return (-1);
531 	}
532 
533 	WRITE_REG(sc, TXP_ISR, TXP_INT_A2H_0);
534 
535 	r = READ_REG(sc, TXP_A2H_0);
536 	if (r != STAT_WAITING_FOR_SEGMENT) {
537 		if_printf(&sc->sc_arpcom.ac_if, "fw not waiting for segment\n");
538 		return (-1);
539 	}
540 	return (0);
541 }
542 
543 static int
544 txp_download_fw_section(struct txp_softc *sc,
545 			struct txp_fw_section_header *sect, int sectnum)
546 {
547 	vm_offset_t dma;
548 	int rseg, err = 0;
549 	struct mbuf m;
550 	u_int16_t csum;
551 
552 	/* Skip zero length sections */
553 	if (sect->nbytes == 0)
554 		return (0);
555 
556 	/* Make sure we aren't past the end of the image */
557 	rseg = ((u_int8_t *)sect) - ((u_int8_t *)tc990image);
558 	if (rseg >= sizeof(tc990image)) {
559 		if_printf(&sc->sc_arpcom.ac_if, "fw invalid section address, "
560 		    "section %d\n", sectnum);
561 		return (-1);
562 	}
563 
564 	/* Make sure this section doesn't go past the end */
565 	rseg += sect->nbytes;
566 	if (rseg >= sizeof(tc990image)) {
567 		if_printf(&sc->sc_arpcom.ac_if, "fw truncated section %d\n",
568 		    sectnum);
569 		return (-1);
570 	}
571 
572 	bcopy(((u_int8_t *)sect) + sizeof(*sect), sc->sc_fwbuf, sect->nbytes);
573 	dma = vtophys(sc->sc_fwbuf);
574 
575 	/*
576 	 * dummy up mbuf and verify section checksum
577 	 */
578 	m.m_type = MT_DATA;
579 	m.m_next = m.m_nextpkt = NULL;
580 	m.m_len = sect->nbytes;
581 	m.m_data = sc->sc_fwbuf;
582 	m.m_flags = 0;
583 	csum = in_cksum(&m, sect->nbytes);
584 	if (csum != sect->cksum) {
585 		if_printf(&sc->sc_arpcom.ac_if, "fw section %d, bad "
586 		    "cksum (expected 0x%x got 0x%x)\n",
587 		    sectnum, sect->cksum, csum);
588 		err = -1;
589 		goto bail;
590 	}
591 
592 	WRITE_REG(sc, TXP_H2A_1, sect->nbytes);
593 	WRITE_REG(sc, TXP_H2A_2, sect->cksum);
594 	WRITE_REG(sc, TXP_H2A_3, sect->addr);
595 	WRITE_REG(sc, TXP_H2A_4, 0);
596 	WRITE_REG(sc, TXP_H2A_5, dma & 0xffffffff);
597 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_SEGMENT_AVAILABLE);
598 
599 	if (txp_download_fw_wait(sc)) {
600 		if_printf(&sc->sc_arpcom.ac_if, "fw wait failed, "
601 		    "section %d\n", sectnum);
602 		err = -1;
603 	}
604 
605 bail:
606 	return (err);
607 }
608 
609 static void
610 txp_intr(void *vsc)
611 {
612 	struct txp_softc *sc = vsc;
613 	struct txp_hostvar *hv = sc->sc_hostvar;
614 	u_int32_t isr;
615 
616 	/* mask all interrupts */
617 	WRITE_REG(sc, TXP_IMR, TXP_INT_RESERVED | TXP_INT_SELF |
618 	    TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
619 	    TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0 |
620 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
621 	    TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |  TXP_INT_LATCH);
622 
623 	isr = READ_REG(sc, TXP_ISR);
624 	while (isr) {
625 		WRITE_REG(sc, TXP_ISR, isr);
626 
627 		if ((*sc->sc_rxhir.r_roff) != (*sc->sc_rxhir.r_woff))
628 			txp_rx_reclaim(sc, &sc->sc_rxhir);
629 		if ((*sc->sc_rxlor.r_roff) != (*sc->sc_rxlor.r_woff))
630 			txp_rx_reclaim(sc, &sc->sc_rxlor);
631 
632 		if (hv->hv_rx_buf_write_idx == hv->hv_rx_buf_read_idx)
633 			txp_rxbuf_reclaim(sc);
634 
635 		if (sc->sc_txhir.r_cnt && (sc->sc_txhir.r_cons !=
636 		    TXP_OFFSET2IDX(*(sc->sc_txhir.r_off))))
637 			txp_tx_reclaim(sc, &sc->sc_txhir);
638 
639 		if (sc->sc_txlor.r_cnt && (sc->sc_txlor.r_cons !=
640 		    TXP_OFFSET2IDX(*(sc->sc_txlor.r_off))))
641 			txp_tx_reclaim(sc, &sc->sc_txlor);
642 
643 		isr = READ_REG(sc, TXP_ISR);
644 	}
645 
646 	/* unmask all interrupts */
647 	WRITE_REG(sc, TXP_IMR, TXP_INT_A2H_3);
648 
649 	txp_start(&sc->sc_arpcom.ac_if);
650 
651 	return;
652 }
653 
654 static void
655 txp_rx_reclaim(struct txp_softc *sc, struct txp_rx_ring *r)
656 {
657 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
658 	struct txp_rx_desc *rxd;
659 	struct mbuf *m;
660 	struct txp_swdesc *sd = NULL;
661 	u_int32_t roff, woff;
662 
663 	roff = *r->r_roff;
664 	woff = *r->r_woff;
665 	rxd = r->r_desc + (roff / sizeof(struct txp_rx_desc));
666 
667 	while (roff != woff) {
668 
669 		if (rxd->rx_flags & RX_FLAGS_ERROR) {
670 			if_printf(ifp, "error 0x%x\n", rxd->rx_stat);
671 			ifp->if_ierrors++;
672 			goto next;
673 		}
674 
675 		/* retrieve stashed pointer */
676 		sd = rxd->rx_sd;
677 
678 		m = sd->sd_mbuf;
679 		sd->sd_mbuf = NULL;
680 
681 		m->m_pkthdr.len = m->m_len = rxd->rx_len;
682 
683 #ifdef __STRICT_ALIGNMENT
684 		{
685 			/*
686 			 * XXX Nice chip, except it won't accept "off by 2"
687 			 * buffers, so we're force to copy.  Supposedly
688 			 * this will be fixed in a newer firmware rev
689 			 * and this will be temporary.
690 			 */
691 			struct mbuf *mnew;
692 
693 			MGETHDR(mnew, MB_DONTWAIT, MT_DATA);
694 			if (mnew == NULL) {
695 				m_freem(m);
696 				goto next;
697 			}
698 			if (m->m_len > (MHLEN - 2)) {
699 				MCLGET(mnew, MB_DONTWAIT);
700 				if (!(mnew->m_flags & M_EXT)) {
701 					m_freem(mnew);
702 					m_freem(m);
703 					goto next;
704 				}
705 			}
706 			mnew->m_pkthdr.rcvif = ifp;
707 			m_adj(mnew, 2);
708 			mnew->m_pkthdr.len = mnew->m_len = m->m_len;
709 			m_copydata(m, 0, m->m_pkthdr.len, mtod(mnew, caddr_t));
710 			m_freem(m);
711 			m = mnew;
712 		}
713 #endif
714 
715 		if (rxd->rx_stat & RX_STAT_IPCKSUMBAD)
716 			m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
717 		else if (rxd->rx_stat & RX_STAT_IPCKSUMGOOD)
718 		 	m->m_pkthdr.csum_flags |=
719 			    CSUM_IP_CHECKED|CSUM_IP_VALID;
720 
721 		if ((rxd->rx_stat & RX_STAT_TCPCKSUMGOOD) ||
722 		    (rxd->rx_stat & RX_STAT_UDPCKSUMGOOD)) {
723 			m->m_pkthdr.csum_flags |=
724 			    CSUM_DATA_VALID|CSUM_PSEUDO_HDR;
725 			m->m_pkthdr.csum_data = 0xffff;
726 		}
727 
728 		lwkt_serialize_enter(ifp->if_serializer);
729 		if (rxd->rx_stat & RX_STAT_VLAN)
730 			VLAN_INPUT_TAG(m, htons(rxd->rx_vlan >> 16));
731 		else
732 			ifp->if_input(ifp, m);
733 		lwkt_serialize_exit(ifp->if_serializer);
734 
735 next:
736 
737 		roff += sizeof(struct txp_rx_desc);
738 		if (roff == (RX_ENTRIES * sizeof(struct txp_rx_desc))) {
739 			roff = 0;
740 			rxd = r->r_desc;
741 		} else
742 			rxd++;
743 		woff = *r->r_woff;
744 	}
745 
746 	*r->r_roff = woff;
747 
748 	return;
749 }
750 
751 static void
752 txp_rxbuf_reclaim(struct txp_softc *sc)
753 {
754 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
755 	struct txp_hostvar *hv = sc->sc_hostvar;
756 	struct txp_rxbuf_desc *rbd;
757 	struct txp_swdesc *sd;
758 	u_int32_t i;
759 
760 	if (!(ifp->if_flags & IFF_RUNNING))
761 		return;
762 
763 	i = sc->sc_rxbufprod;
764 	rbd = sc->sc_rxbufs + i;
765 
766 	while (1) {
767 		sd = rbd->rb_sd;
768 		if (sd->sd_mbuf != NULL)
769 			break;
770 
771 		MGETHDR(sd->sd_mbuf, MB_DONTWAIT, MT_DATA);
772 		if (sd->sd_mbuf == NULL)
773 			goto err_sd;
774 
775 		MCLGET(sd->sd_mbuf, MB_DONTWAIT);
776 		if ((sd->sd_mbuf->m_flags & M_EXT) == 0)
777 			goto err_mbuf;
778 		sd->sd_mbuf->m_pkthdr.rcvif = ifp;
779 		sd->sd_mbuf->m_pkthdr.len = sd->sd_mbuf->m_len = MCLBYTES;
780 
781 		rbd->rb_paddrlo = vtophys(mtod(sd->sd_mbuf, vm_offset_t))
782 		    & 0xffffffff;
783 		rbd->rb_paddrhi = 0;
784 
785 		hv->hv_rx_buf_write_idx = TXP_IDX2OFFSET(i);
786 
787 		if (++i == RXBUF_ENTRIES) {
788 			i = 0;
789 			rbd = sc->sc_rxbufs;
790 		} else
791 			rbd++;
792 	}
793 
794 	sc->sc_rxbufprod = i;
795 
796 	return;
797 
798 err_mbuf:
799 	m_freem(sd->sd_mbuf);
800 err_sd:
801 	free(sd, M_DEVBUF);
802 }
803 
804 /*
805  * Reclaim mbufs and entries from a transmit ring.
806  */
807 static void
808 txp_tx_reclaim(struct txp_softc *sc, struct txp_tx_ring *r)
809 {
810 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
811 	u_int32_t idx = TXP_OFFSET2IDX(*(r->r_off));
812 	u_int32_t cons = r->r_cons, cnt = r->r_cnt;
813 	struct txp_tx_desc *txd = r->r_desc + cons;
814 	struct txp_swdesc *sd = sc->sc_txd + cons;
815 	struct mbuf *m;
816 
817 	while (cons != idx) {
818 		if (cnt == 0)
819 			break;
820 
821 		if ((txd->tx_flags & TX_FLAGS_TYPE_M) ==
822 		    TX_FLAGS_TYPE_DATA) {
823 			m = sd->sd_mbuf;
824 			if (m != NULL) {
825 				m_freem(m);
826 				txd->tx_addrlo = 0;
827 				txd->tx_addrhi = 0;
828 				ifp->if_opackets++;
829 			}
830 		}
831 		ifp->if_flags &= ~IFF_OACTIVE;
832 
833 		if (++cons == TX_ENTRIES) {
834 			txd = r->r_desc;
835 			cons = 0;
836 			sd = sc->sc_txd;
837 		} else {
838 			txd++;
839 			sd++;
840 		}
841 
842 		cnt--;
843 	}
844 
845 	r->r_cons = cons;
846 	r->r_cnt = cnt;
847 	if (cnt == 0)
848 		ifp->if_timer = 0;
849 }
850 
851 static int
852 txp_shutdown(device_t dev)
853 {
854 	struct txp_softc *sc;
855 	struct ifnet *ifp;
856 
857 	sc = device_get_softc(dev);
858 	ifp = &sc->sc_arpcom.ac_if;
859 	lwkt_serialize_enter(ifp->if_serializer);
860 
861 	/* mask all interrupts */
862 	WRITE_REG(sc, TXP_IMR,
863 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
864 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
865 	    TXP_INT_LATCH);
866 
867 	txp_command(sc, TXP_CMD_TX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 0);
868 	txp_command(sc, TXP_CMD_RX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 0);
869 	txp_command(sc, TXP_CMD_HALT, 0, 0, 0, NULL, NULL, NULL, 0);
870 
871 	lwkt_serialize_exit(ifp->if_serializer);
872 	return(0);
873 }
874 
875 static int
876 txp_alloc_rings(struct txp_softc *sc)
877 {
878 	struct txp_boot_record *boot;
879 	struct txp_ldata *ld;
880 	u_int32_t r;
881 	int i;
882 
883 	ld = sc->sc_ldata;
884 	boot = &ld->txp_boot;
885 
886 	/* boot record */
887 	sc->sc_boot = boot;
888 
889 	/* host variables */
890 	bzero(&ld->txp_hostvar, sizeof(struct txp_hostvar));
891 	boot->br_hostvar_lo = vtophys(&ld->txp_hostvar);
892 	boot->br_hostvar_hi = 0;
893 	sc->sc_hostvar = (struct txp_hostvar *)&ld->txp_hostvar;
894 
895 	/* hi priority tx ring */
896 	boot->br_txhipri_lo = vtophys(&ld->txp_txhiring);
897 	boot->br_txhipri_hi = 0;
898 	boot->br_txhipri_siz = TX_ENTRIES * sizeof(struct txp_tx_desc);
899 	sc->sc_txhir.r_reg = TXP_H2A_1;
900 	sc->sc_txhir.r_desc = (struct txp_tx_desc *)&ld->txp_txhiring;
901 	sc->sc_txhir.r_cons = sc->sc_txhir.r_prod = sc->sc_txhir.r_cnt = 0;
902 	sc->sc_txhir.r_off = &sc->sc_hostvar->hv_tx_hi_desc_read_idx;
903 
904 	/* lo priority tx ring */
905 	boot->br_txlopri_lo = vtophys(&ld->txp_txloring);
906 	boot->br_txlopri_hi = 0;
907 	boot->br_txlopri_siz = TX_ENTRIES * sizeof(struct txp_tx_desc);
908 	sc->sc_txlor.r_reg = TXP_H2A_3;
909 	sc->sc_txlor.r_desc = (struct txp_tx_desc *)&ld->txp_txloring;
910 	sc->sc_txlor.r_cons = sc->sc_txlor.r_prod = sc->sc_txlor.r_cnt = 0;
911 	sc->sc_txlor.r_off = &sc->sc_hostvar->hv_tx_lo_desc_read_idx;
912 
913 	/* high priority rx ring */
914 	boot->br_rxhipri_lo = vtophys(&ld->txp_rxhiring);
915 	boot->br_rxhipri_hi = 0;
916 	boot->br_rxhipri_siz = RX_ENTRIES * sizeof(struct txp_rx_desc);
917 	sc->sc_rxhir.r_desc = (struct txp_rx_desc *)&ld->txp_rxhiring;
918 	sc->sc_rxhir.r_roff = &sc->sc_hostvar->hv_rx_hi_read_idx;
919 	sc->sc_rxhir.r_woff = &sc->sc_hostvar->hv_rx_hi_write_idx;
920 
921 	/* low priority rx ring */
922 	boot->br_rxlopri_lo = vtophys(&ld->txp_rxloring);
923 	boot->br_rxlopri_hi = 0;
924 	boot->br_rxlopri_siz = RX_ENTRIES * sizeof(struct txp_rx_desc);
925 	sc->sc_rxlor.r_desc = (struct txp_rx_desc *)&ld->txp_rxloring;
926 	sc->sc_rxlor.r_roff = &sc->sc_hostvar->hv_rx_lo_read_idx;
927 	sc->sc_rxlor.r_woff = &sc->sc_hostvar->hv_rx_lo_write_idx;
928 
929 	/* command ring */
930 	bzero(&ld->txp_cmdring, sizeof(struct txp_cmd_desc) * CMD_ENTRIES);
931 	boot->br_cmd_lo = vtophys(&ld->txp_cmdring);
932 	boot->br_cmd_hi = 0;
933 	boot->br_cmd_siz = CMD_ENTRIES * sizeof(struct txp_cmd_desc);
934 	sc->sc_cmdring.base = (struct txp_cmd_desc *)&ld->txp_cmdring;
935 	sc->sc_cmdring.size = CMD_ENTRIES * sizeof(struct txp_cmd_desc);
936 	sc->sc_cmdring.lastwrite = 0;
937 
938 	/* response ring */
939 	bzero(&ld->txp_rspring, sizeof(struct txp_rsp_desc) * RSP_ENTRIES);
940 	boot->br_resp_lo = vtophys(&ld->txp_rspring);
941 	boot->br_resp_hi = 0;
942 	boot->br_resp_siz = CMD_ENTRIES * sizeof(struct txp_rsp_desc);
943 	sc->sc_rspring.base = (struct txp_rsp_desc *)&ld->txp_rspring;
944 	sc->sc_rspring.size = RSP_ENTRIES * sizeof(struct txp_rsp_desc);
945 	sc->sc_rspring.lastwrite = 0;
946 
947 	/* receive buffer ring */
948 	boot->br_rxbuf_lo = vtophys(&ld->txp_rxbufs);
949 	boot->br_rxbuf_hi = 0;
950 	boot->br_rxbuf_siz = RXBUF_ENTRIES * sizeof(struct txp_rxbuf_desc);
951 	sc->sc_rxbufs = (struct txp_rxbuf_desc *)&ld->txp_rxbufs;
952 
953 	for (i = 0; i < RXBUF_ENTRIES; i++) {
954 		struct txp_swdesc *sd;
955 		if (sc->sc_rxbufs[i].rb_sd != NULL)
956 			continue;
957 		sc->sc_rxbufs[i].rb_sd = malloc(sizeof(struct txp_swdesc),
958 		    M_DEVBUF, M_WAITOK);
959 		if (sc->sc_rxbufs[i].rb_sd == NULL)
960 			return(ENOBUFS);
961 		sd = sc->sc_rxbufs[i].rb_sd;
962 		sd->sd_mbuf = NULL;
963 	}
964 	sc->sc_rxbufprod = 0;
965 
966 	/* zero dma */
967 	bzero(&ld->txp_zero, sizeof(u_int32_t));
968 	boot->br_zero_lo = vtophys(&ld->txp_zero);
969 	boot->br_zero_hi = 0;
970 
971 	/* See if it's waiting for boot, and try to boot it */
972 	for (i = 0; i < 10000; i++) {
973 		r = READ_REG(sc, TXP_A2H_0);
974 		if (r == STAT_WAITING_FOR_BOOT)
975 			break;
976 		DELAY(50);
977 	}
978 
979 	if (r != STAT_WAITING_FOR_BOOT) {
980 		if_printf(&sc->sc_arpcom.ac_if, "not waiting for boot\n");
981 		return(ENXIO);
982 	}
983 
984 	WRITE_REG(sc, TXP_H2A_2, 0);
985 	WRITE_REG(sc, TXP_H2A_1, vtophys(sc->sc_boot));
986 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_REGISTER_BOOT_RECORD);
987 
988 	/* See if it booted */
989 	for (i = 0; i < 10000; i++) {
990 		r = READ_REG(sc, TXP_A2H_0);
991 		if (r == STAT_RUNNING)
992 			break;
993 		DELAY(50);
994 	}
995 	if (r != STAT_RUNNING) {
996 		if_printf(&sc->sc_arpcom.ac_if, "fw not running\n");
997 		return(ENXIO);
998 	}
999 
1000 	/* Clear TX and CMD ring write registers */
1001 	WRITE_REG(sc, TXP_H2A_1, TXP_BOOTCMD_NULL);
1002 	WRITE_REG(sc, TXP_H2A_2, TXP_BOOTCMD_NULL);
1003 	WRITE_REG(sc, TXP_H2A_3, TXP_BOOTCMD_NULL);
1004 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_NULL);
1005 
1006 	return (0);
1007 }
1008 
1009 static int
1010 txp_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
1011 {
1012 	struct txp_softc *sc = ifp->if_softc;
1013 	struct ifreq *ifr = (struct ifreq *)data;
1014 	int error = 0;
1015 
1016 	switch(command) {
1017 	case SIOCSIFFLAGS:
1018 		if (ifp->if_flags & IFF_UP) {
1019 			txp_init(sc);
1020 		} else {
1021 			if (ifp->if_flags & IFF_RUNNING)
1022 				txp_stop(sc);
1023 		}
1024 		break;
1025 	case SIOCADDMULTI:
1026 	case SIOCDELMULTI:
1027 		/*
1028 		 * Multicast list has changed; set the hardware
1029 		 * filter accordingly.
1030 		 */
1031 		txp_set_filter(sc);
1032 		error = 0;
1033 		break;
1034 	case SIOCGIFMEDIA:
1035 	case SIOCSIFMEDIA:
1036 		error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, command);
1037 		break;
1038 	default:
1039 		error = ether_ioctl(ifp, command, data);
1040 		break;
1041 	}
1042 	return(error);
1043 }
1044 
1045 static int
1046 txp_rxring_fill(struct txp_softc *sc)
1047 {
1048 	int i;
1049 	struct ifnet *ifp;
1050 	struct txp_swdesc *sd;
1051 
1052 	ifp = &sc->sc_arpcom.ac_if;
1053 
1054 	for (i = 0; i < RXBUF_ENTRIES; i++) {
1055 		sd = sc->sc_rxbufs[i].rb_sd;
1056 		MGETHDR(sd->sd_mbuf, MB_DONTWAIT, MT_DATA);
1057 		if (sd->sd_mbuf == NULL)
1058 			return(ENOBUFS);
1059 
1060 		MCLGET(sd->sd_mbuf, MB_DONTWAIT);
1061 		if ((sd->sd_mbuf->m_flags & M_EXT) == 0) {
1062 			m_freem(sd->sd_mbuf);
1063 			return(ENOBUFS);
1064 		}
1065 		sd->sd_mbuf->m_pkthdr.len = sd->sd_mbuf->m_len = MCLBYTES;
1066 		sd->sd_mbuf->m_pkthdr.rcvif = ifp;
1067 
1068 		sc->sc_rxbufs[i].rb_paddrlo =
1069 		    vtophys(mtod(sd->sd_mbuf, vm_offset_t));
1070 		sc->sc_rxbufs[i].rb_paddrhi = 0;
1071 	}
1072 
1073 	sc->sc_hostvar->hv_rx_buf_write_idx = (RXBUF_ENTRIES - 1) *
1074 	    sizeof(struct txp_rxbuf_desc);
1075 
1076 	return(0);
1077 }
1078 
1079 static void
1080 txp_rxring_empty(struct txp_softc *sc)
1081 {
1082 	int i;
1083 	struct txp_swdesc *sd;
1084 
1085 	if (sc->sc_rxbufs == NULL)
1086 		return;
1087 
1088 	for (i = 0; i < RXBUF_ENTRIES; i++) {
1089 		if (&sc->sc_rxbufs[i] == NULL)
1090 			continue;
1091 		sd = sc->sc_rxbufs[i].rb_sd;
1092 		if (sd == NULL)
1093 			continue;
1094 		if (sd->sd_mbuf != NULL) {
1095 			m_freem(sd->sd_mbuf);
1096 			sd->sd_mbuf = NULL;
1097 		}
1098 	}
1099 
1100 	return;
1101 }
1102 
1103 static void
1104 txp_init(void *xsc)
1105 {
1106 	struct txp_softc *sc;
1107 	struct ifnet *ifp;
1108 	u_int16_t p1;
1109 	u_int32_t p2;
1110 
1111 	sc = xsc;
1112 	ifp = &sc->sc_arpcom.ac_if;
1113 
1114 	if (ifp->if_flags & IFF_RUNNING)
1115 		return;
1116 
1117 	txp_stop(sc);
1118 
1119 	txp_command(sc, TXP_CMD_MAX_PKT_SIZE_WRITE, TXP_MAX_PKTLEN, 0, 0,
1120 	    NULL, NULL, NULL, 1);
1121 
1122 	/* Set station address. */
1123 	((u_int8_t *)&p1)[1] = sc->sc_arpcom.ac_enaddr[0];
1124 	((u_int8_t *)&p1)[0] = sc->sc_arpcom.ac_enaddr[1];
1125 	((u_int8_t *)&p2)[3] = sc->sc_arpcom.ac_enaddr[2];
1126 	((u_int8_t *)&p2)[2] = sc->sc_arpcom.ac_enaddr[3];
1127 	((u_int8_t *)&p2)[1] = sc->sc_arpcom.ac_enaddr[4];
1128 	((u_int8_t *)&p2)[0] = sc->sc_arpcom.ac_enaddr[5];
1129 	txp_command(sc, TXP_CMD_STATION_ADDRESS_WRITE, p1, p2, 0,
1130 	    NULL, NULL, NULL, 1);
1131 
1132 	txp_set_filter(sc);
1133 
1134 	txp_rxring_fill(sc);
1135 
1136 	txp_command(sc, TXP_CMD_TX_ENABLE, 0, 0, 0, NULL, NULL, NULL, 1);
1137 	txp_command(sc, TXP_CMD_RX_ENABLE, 0, 0, 0, NULL, NULL, NULL, 1);
1138 
1139 	WRITE_REG(sc, TXP_IER, TXP_INT_RESERVED | TXP_INT_SELF |
1140 	    TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
1141 	    TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0 |
1142 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
1143 	    TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |  TXP_INT_LATCH);
1144 	WRITE_REG(sc, TXP_IMR, TXP_INT_A2H_3);
1145 
1146 	ifp->if_flags |= IFF_RUNNING;
1147 	ifp->if_flags &= ~IFF_OACTIVE;
1148 	ifp->if_timer = 0;
1149 
1150 	callout_reset(&sc->txp_stat_timer, hz, txp_tick, sc);
1151 }
1152 
1153 static void
1154 txp_tick(void *vsc)
1155 {
1156 	struct txp_softc *sc = vsc;
1157 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
1158 	struct txp_rsp_desc *rsp = NULL;
1159 	struct txp_ext_desc *ext;
1160 
1161 	lwkt_serialize_enter(ifp->if_serializer);
1162 	txp_rxbuf_reclaim(sc);
1163 
1164 	if (txp_command2(sc, TXP_CMD_READ_STATISTICS, 0, 0, 0, NULL, 0,
1165 	    &rsp, 1))
1166 		goto out;
1167 	if (rsp->rsp_numdesc != 6)
1168 		goto out;
1169 	if (txp_command(sc, TXP_CMD_CLEAR_STATISTICS, 0, 0, 0,
1170 	    NULL, NULL, NULL, 1))
1171 		goto out;
1172 	ext = (struct txp_ext_desc *)(rsp + 1);
1173 
1174 	ifp->if_ierrors += ext[3].ext_2 + ext[3].ext_3 + ext[3].ext_4 +
1175 	    ext[4].ext_1 + ext[4].ext_4;
1176 	ifp->if_oerrors += ext[0].ext_1 + ext[1].ext_1 + ext[1].ext_4 +
1177 	    ext[2].ext_1;
1178 	ifp->if_collisions += ext[0].ext_2 + ext[0].ext_3 + ext[1].ext_2 +
1179 	    ext[1].ext_3;
1180 	ifp->if_opackets += rsp->rsp_par2;
1181 	ifp->if_ipackets += ext[2].ext_3;
1182 
1183 out:
1184 	if (rsp != NULL)
1185 		free(rsp, M_DEVBUF);
1186 
1187 	callout_reset(&sc->txp_stat_timer, hz, txp_tick, sc);
1188 	lwkt_serialize_exit(ifp->if_serializer);
1189 }
1190 
1191 static void
1192 txp_start(struct ifnet *ifp)
1193 {
1194 	struct txp_softc *sc = ifp->if_softc;
1195 	struct txp_tx_ring *r = &sc->sc_txhir;
1196 	struct txp_tx_desc *txd;
1197 	struct txp_frag_desc *fxd;
1198 	struct mbuf *m, *m0;
1199 	struct txp_swdesc *sd;
1200 	u_int32_t firstprod, firstcnt, prod, cnt;
1201 	struct ifvlan		*ifv;
1202 
1203 	if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
1204 		return;
1205 
1206 	prod = r->r_prod;
1207 	cnt = r->r_cnt;
1208 
1209 	while (1) {
1210 		m = ifq_poll(&ifp->if_snd);
1211 		if (m == NULL)
1212 			break;
1213 
1214 		firstprod = prod;
1215 		firstcnt = cnt;
1216 
1217 		sd = sc->sc_txd + prod;
1218 		sd->sd_mbuf = m;
1219 
1220 		if ((TX_ENTRIES - cnt) < 4)
1221 			goto oactive;
1222 
1223 		txd = r->r_desc + prod;
1224 
1225 		txd->tx_flags = TX_FLAGS_TYPE_DATA;
1226 		txd->tx_numdesc = 0;
1227 		txd->tx_addrlo = 0;
1228 		txd->tx_addrhi = 0;
1229 		txd->tx_totlen = 0;
1230 		txd->tx_pflags = 0;
1231 
1232 		if (++prod == TX_ENTRIES)
1233 			prod = 0;
1234 
1235 		if (++cnt >= (TX_ENTRIES - 4))
1236 			goto oactive;
1237 
1238 		if ((m->m_flags & (M_PROTO1|M_PKTHDR)) == (M_PROTO1|M_PKTHDR) &&
1239 		    m->m_pkthdr.rcvif != NULL) {
1240 			ifv = m->m_pkthdr.rcvif->if_softc;
1241 			txd->tx_pflags = TX_PFLAGS_VLAN |
1242 			    (htons(ifv->ifv_tag) << TX_PFLAGS_VLANTAG_S);
1243 		}
1244 
1245 		if (m->m_pkthdr.csum_flags & CSUM_IP)
1246 			txd->tx_pflags |= TX_PFLAGS_IPCKSUM;
1247 
1248 #if 0
1249 		if (m->m_pkthdr.csum_flags & CSUM_TCP)
1250 			txd->tx_pflags |= TX_PFLAGS_TCPCKSUM;
1251 		if (m->m_pkthdr.csum_flags & CSUM_UDP)
1252 			txd->tx_pflags |= TX_PFLAGS_UDPCKSUM;
1253 #endif
1254 
1255 		fxd = (struct txp_frag_desc *)(r->r_desc + prod);
1256 		for (m0 = m; m0 != NULL; m0 = m0->m_next) {
1257 			if (m0->m_len == 0)
1258 				continue;
1259 			if (++cnt >= (TX_ENTRIES - 4))
1260 				goto oactive;
1261 
1262 			txd->tx_numdesc++;
1263 
1264 			fxd->frag_flags = FRAG_FLAGS_TYPE_FRAG;
1265 			fxd->frag_rsvd1 = 0;
1266 			fxd->frag_len = m0->m_len;
1267 			fxd->frag_addrlo = vtophys(mtod(m0, vm_offset_t));
1268 			fxd->frag_addrhi = 0;
1269 			fxd->frag_rsvd2 = 0;
1270 
1271 			if (++prod == TX_ENTRIES) {
1272 				fxd = (struct txp_frag_desc *)r->r_desc;
1273 				prod = 0;
1274 			} else
1275 				fxd++;
1276 
1277 		}
1278 
1279 		ifp->if_timer = 5;
1280 
1281 		ifq_dequeue(&ifp->if_snd, m);
1282 		BPF_MTAP(ifp, m);
1283 		WRITE_REG(sc, r->r_reg, TXP_IDX2OFFSET(prod));
1284 	}
1285 
1286 	r->r_prod = prod;
1287 	r->r_cnt = cnt;
1288 	return;
1289 
1290 oactive:
1291 	ifp->if_flags |= IFF_OACTIVE;
1292 	r->r_prod = firstprod;
1293 	r->r_cnt = firstcnt;
1294 	return;
1295 }
1296 
1297 /*
1298  * Handle simple commands sent to the typhoon
1299  */
1300 static int
1301 txp_command(struct txp_softc *sc, u_int16_t id, u_int16_t in1, u_int32_t in2,
1302 	    u_int32_t in3, u_int16_t *out1, u_int32_t *out2, u_int32_t *out3,
1303 	    int wait)
1304 {
1305 	struct txp_rsp_desc *rsp = NULL;
1306 
1307 	if (txp_command2(sc, id, in1, in2, in3, NULL, 0, &rsp, wait))
1308 		return (-1);
1309 
1310 	if (!wait)
1311 		return (0);
1312 
1313 	if (out1 != NULL)
1314 		*out1 = rsp->rsp_par1;
1315 	if (out2 != NULL)
1316 		*out2 = rsp->rsp_par2;
1317 	if (out3 != NULL)
1318 		*out3 = rsp->rsp_par3;
1319 	free(rsp, M_DEVBUF);
1320 	return (0);
1321 }
1322 
1323 static int
1324 txp_command2(struct txp_softc *sc, u_int16_t id, u_int16_t in1, u_int32_t in2,
1325 	     u_int32_t in3, struct txp_ext_desc *in_extp, u_int8_t in_extn,
1326 	     struct txp_rsp_desc **rspp, int wait)
1327 {
1328 	struct txp_hostvar *hv = sc->sc_hostvar;
1329 	struct txp_cmd_desc *cmd;
1330 	struct txp_ext_desc *ext;
1331 	u_int32_t idx, i;
1332 	u_int16_t seq;
1333 
1334 	if (txp_cmd_desc_numfree(sc) < (in_extn + 1)) {
1335 		if_printf(&sc->sc_arpcom.ac_if, "no free cmd descriptors\n");
1336 		return (-1);
1337 	}
1338 
1339 	idx = sc->sc_cmdring.lastwrite;
1340 	cmd = (struct txp_cmd_desc *)(((u_int8_t *)sc->sc_cmdring.base) + idx);
1341 	bzero(cmd, sizeof(*cmd));
1342 
1343 	cmd->cmd_numdesc = in_extn;
1344 	cmd->cmd_seq = seq = sc->sc_seq++;
1345 	cmd->cmd_id = id;
1346 	cmd->cmd_par1 = in1;
1347 	cmd->cmd_par2 = in2;
1348 	cmd->cmd_par3 = in3;
1349 	cmd->cmd_flags = CMD_FLAGS_TYPE_CMD |
1350 	    (wait ? CMD_FLAGS_RESP : 0) | CMD_FLAGS_VALID;
1351 
1352 	idx += sizeof(struct txp_cmd_desc);
1353 	if (idx == sc->sc_cmdring.size)
1354 		idx = 0;
1355 
1356 	for (i = 0; i < in_extn; i++) {
1357 		ext = (struct txp_ext_desc *)(((u_int8_t *)sc->sc_cmdring.base) + idx);
1358 		bcopy(in_extp, ext, sizeof(struct txp_ext_desc));
1359 		in_extp++;
1360 		idx += sizeof(struct txp_cmd_desc);
1361 		if (idx == sc->sc_cmdring.size)
1362 			idx = 0;
1363 	}
1364 
1365 	sc->sc_cmdring.lastwrite = idx;
1366 
1367 	WRITE_REG(sc, TXP_H2A_2, sc->sc_cmdring.lastwrite);
1368 
1369 	if (!wait)
1370 		return (0);
1371 
1372 	for (i = 0; i < 10000; i++) {
1373 		idx = hv->hv_resp_read_idx;
1374 		if (idx != hv->hv_resp_write_idx) {
1375 			*rspp = NULL;
1376 			if (txp_response(sc, idx, id, seq, rspp))
1377 				return (-1);
1378 			if (*rspp != NULL)
1379 				break;
1380 		}
1381 		DELAY(50);
1382 	}
1383 	if (i == 1000 || (*rspp) == NULL) {
1384 		if_printf(&sc->sc_arpcom.ac_if, "0x%x command failed\n", id);
1385 		return (-1);
1386 	}
1387 
1388 	return (0);
1389 }
1390 
1391 static int
1392 txp_response(struct txp_softc *sc, u_int32_t ridx, u_int16_t id, u_int16_t seq,
1393 	     struct txp_rsp_desc **rspp)
1394 {
1395 	struct txp_hostvar *hv = sc->sc_hostvar;
1396 	struct txp_rsp_desc *rsp;
1397 
1398 	while (ridx != hv->hv_resp_write_idx) {
1399 		rsp = (struct txp_rsp_desc *)(((u_int8_t *)sc->sc_rspring.base) + ridx);
1400 
1401 		if (id == rsp->rsp_id && rsp->rsp_seq == seq) {
1402 			*rspp = (struct txp_rsp_desc *)malloc(
1403 			    sizeof(struct txp_rsp_desc) * (rsp->rsp_numdesc + 1),
1404 			    M_DEVBUF, M_INTWAIT);
1405 			if ((*rspp) == NULL)
1406 				return (-1);
1407 			txp_rsp_fixup(sc, rsp, *rspp);
1408 			return (0);
1409 		}
1410 
1411 		if (rsp->rsp_flags & RSP_FLAGS_ERROR) {
1412 			if_printf(&sc->sc_arpcom.ac_if, "response error!\n");
1413 			txp_rsp_fixup(sc, rsp, NULL);
1414 			ridx = hv->hv_resp_read_idx;
1415 			continue;
1416 		}
1417 
1418 		switch (rsp->rsp_id) {
1419 		case TXP_CMD_CYCLE_STATISTICS:
1420 		case TXP_CMD_MEDIA_STATUS_READ:
1421 			break;
1422 		case TXP_CMD_HELLO_RESPONSE:
1423 			if_printf(&sc->sc_arpcom.ac_if, "hello\n");
1424 			break;
1425 		default:
1426 			if_printf(&sc->sc_arpcom.ac_if, "unknown id(0x%x)\n",
1427 			    rsp->rsp_id);
1428 		}
1429 
1430 		txp_rsp_fixup(sc, rsp, NULL);
1431 		ridx = hv->hv_resp_read_idx;
1432 		hv->hv_resp_read_idx = ridx;
1433 	}
1434 
1435 	return (0);
1436 }
1437 
1438 static void
1439 txp_rsp_fixup(struct txp_softc *sc, struct txp_rsp_desc *rsp,
1440 	      struct txp_rsp_desc *dst)
1441 {
1442 	struct txp_rsp_desc *src = rsp;
1443 	struct txp_hostvar *hv = sc->sc_hostvar;
1444 	u_int32_t i, ridx;
1445 
1446 	ridx = hv->hv_resp_read_idx;
1447 
1448 	for (i = 0; i < rsp->rsp_numdesc + 1; i++) {
1449 		if (dst != NULL)
1450 			bcopy(src, dst++, sizeof(struct txp_rsp_desc));
1451 		ridx += sizeof(struct txp_rsp_desc);
1452 		if (ridx == sc->sc_rspring.size) {
1453 			src = sc->sc_rspring.base;
1454 			ridx = 0;
1455 		} else
1456 			src++;
1457 		sc->sc_rspring.lastwrite = hv->hv_resp_read_idx = ridx;
1458 	}
1459 
1460 	hv->hv_resp_read_idx = ridx;
1461 }
1462 
1463 static int
1464 txp_cmd_desc_numfree(struct txp_softc *sc)
1465 {
1466 	struct txp_hostvar *hv = sc->sc_hostvar;
1467 	struct txp_boot_record *br = sc->sc_boot;
1468 	u_int32_t widx, ridx, nfree;
1469 
1470 	widx = sc->sc_cmdring.lastwrite;
1471 	ridx = hv->hv_cmd_read_idx;
1472 
1473 	if (widx == ridx) {
1474 		/* Ring is completely free */
1475 		nfree = br->br_cmd_siz - sizeof(struct txp_cmd_desc);
1476 	} else {
1477 		if (widx > ridx)
1478 			nfree = br->br_cmd_siz -
1479 			    (widx - ridx + sizeof(struct txp_cmd_desc));
1480 		else
1481 			nfree = ridx - widx - sizeof(struct txp_cmd_desc);
1482 	}
1483 
1484 	return (nfree / sizeof(struct txp_cmd_desc));
1485 }
1486 
1487 static void
1488 txp_stop(struct txp_softc *sc)
1489 {
1490 	struct ifnet *ifp;
1491 
1492 	ifp = &sc->sc_arpcom.ac_if;
1493 
1494 	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1495 
1496 	callout_stop(&sc->txp_stat_timer);
1497 
1498 	txp_command(sc, TXP_CMD_TX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 1);
1499 	txp_command(sc, TXP_CMD_RX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 1);
1500 
1501 	txp_rxring_empty(sc);
1502 
1503 	return;
1504 }
1505 
1506 static void
1507 txp_watchdog(struct ifnet *ifp)
1508 {
1509 	return;
1510 }
1511 
1512 static int
1513 txp_ifmedia_upd(struct ifnet *ifp)
1514 {
1515 	struct txp_softc *sc = ifp->if_softc;
1516 	struct ifmedia *ifm = &sc->sc_ifmedia;
1517 	u_int16_t new_xcvr;
1518 
1519 	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1520 		return (EINVAL);
1521 
1522 	if (IFM_SUBTYPE(ifm->ifm_media) == IFM_10_T) {
1523 		if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
1524 			new_xcvr = TXP_XCVR_10_FDX;
1525 		else
1526 			new_xcvr = TXP_XCVR_10_HDX;
1527 	} else if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) {
1528 		if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
1529 			new_xcvr = TXP_XCVR_100_FDX;
1530 		else
1531 			new_xcvr = TXP_XCVR_100_HDX;
1532 	} else if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) {
1533 		new_xcvr = TXP_XCVR_AUTO;
1534 	} else
1535 		return (EINVAL);
1536 
1537 	/* nothing to do */
1538 	if (sc->sc_xcvr == new_xcvr)
1539 		return (0);
1540 
1541 	txp_command(sc, TXP_CMD_XCVR_SELECT, new_xcvr, 0, 0,
1542 	    NULL, NULL, NULL, 0);
1543 	sc->sc_xcvr = new_xcvr;
1544 
1545 	return (0);
1546 }
1547 
1548 static void
1549 txp_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
1550 {
1551 	struct txp_softc *sc = ifp->if_softc;
1552 	struct ifmedia *ifm = &sc->sc_ifmedia;
1553 	u_int16_t bmsr, bmcr, anlpar;
1554 
1555 	ifmr->ifm_status = IFM_AVALID;
1556 	ifmr->ifm_active = IFM_ETHER;
1557 
1558 	if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMSR, 0,
1559 	    &bmsr, NULL, NULL, 1))
1560 		goto bail;
1561 	if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMSR, 0,
1562 	    &bmsr, NULL, NULL, 1))
1563 		goto bail;
1564 
1565 	if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMCR, 0,
1566 	    &bmcr, NULL, NULL, 1))
1567 		goto bail;
1568 
1569 	if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_ANLPAR, 0,
1570 	    &anlpar, NULL, NULL, 1))
1571 		goto bail;
1572 
1573 	if (bmsr & BMSR_LINK)
1574 		ifmr->ifm_status |= IFM_ACTIVE;
1575 
1576 	if (bmcr & BMCR_ISO) {
1577 		ifmr->ifm_active |= IFM_NONE;
1578 		ifmr->ifm_status = 0;
1579 		return;
1580 	}
1581 
1582 	if (bmcr & BMCR_LOOP)
1583 		ifmr->ifm_active |= IFM_LOOP;
1584 
1585 	if (bmcr & BMCR_AUTOEN) {
1586 		if ((bmsr & BMSR_ACOMP) == 0) {
1587 			ifmr->ifm_active |= IFM_NONE;
1588 			return;
1589 		}
1590 
1591 		if (anlpar & ANLPAR_T4)
1592 			ifmr->ifm_active |= IFM_100_T4;
1593 		else if (anlpar & ANLPAR_TX_FD)
1594 			ifmr->ifm_active |= IFM_100_TX|IFM_FDX;
1595 		else if (anlpar & ANLPAR_TX)
1596 			ifmr->ifm_active |= IFM_100_TX;
1597 		else if (anlpar & ANLPAR_10_FD)
1598 			ifmr->ifm_active |= IFM_10_T|IFM_FDX;
1599 		else if (anlpar & ANLPAR_10)
1600 			ifmr->ifm_active |= IFM_10_T;
1601 		else
1602 			ifmr->ifm_active |= IFM_NONE;
1603 	} else
1604 		ifmr->ifm_active = ifm->ifm_cur->ifm_media;
1605 	return;
1606 
1607 bail:
1608 	ifmr->ifm_active |= IFM_NONE;
1609 	ifmr->ifm_status &= ~IFM_AVALID;
1610 }
1611 
1612 #ifdef TXP_DEBUG
1613 static void
1614 txp_show_descriptor(void *d)
1615 {
1616 	struct txp_cmd_desc *cmd = d;
1617 	struct txp_rsp_desc *rsp = d;
1618 	struct txp_tx_desc *txd = d;
1619 	struct txp_frag_desc *frgd = d;
1620 
1621 	switch (cmd->cmd_flags & CMD_FLAGS_TYPE_M) {
1622 	case CMD_FLAGS_TYPE_CMD:
1623 		/* command descriptor */
1624 		printf("[cmd flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
1625 		    cmd->cmd_flags, cmd->cmd_numdesc, cmd->cmd_id, cmd->cmd_seq,
1626 		    cmd->cmd_par1, cmd->cmd_par2, cmd->cmd_par3);
1627 		break;
1628 	case CMD_FLAGS_TYPE_RESP:
1629 		/* response descriptor */
1630 		printf("[rsp flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
1631 		    rsp->rsp_flags, rsp->rsp_numdesc, rsp->rsp_id, rsp->rsp_seq,
1632 		    rsp->rsp_par1, rsp->rsp_par2, rsp->rsp_par3);
1633 		break;
1634 	case CMD_FLAGS_TYPE_DATA:
1635 		/* data header (assuming tx for now) */
1636 		printf("[data flags 0x%x num %d totlen %d addr 0x%x/0x%x pflags 0x%x]",
1637 		    txd->tx_flags, txd->tx_numdesc, txd->tx_totlen,
1638 		    txd->tx_addrlo, txd->tx_addrhi, txd->tx_pflags);
1639 		break;
1640 	case CMD_FLAGS_TYPE_FRAG:
1641 		/* fragment descriptor */
1642 		printf("[frag flags 0x%x rsvd1 0x%x len %d addr 0x%x/0x%x rsvd2 0x%x]",
1643 		    frgd->frag_flags, frgd->frag_rsvd1, frgd->frag_len,
1644 		    frgd->frag_addrlo, frgd->frag_addrhi, frgd->frag_rsvd2);
1645 		break;
1646 	default:
1647 		printf("[unknown(%x) flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
1648 		    cmd->cmd_flags & CMD_FLAGS_TYPE_M,
1649 		    cmd->cmd_flags, cmd->cmd_numdesc, cmd->cmd_id, cmd->cmd_seq,
1650 		    cmd->cmd_par1, cmd->cmd_par2, cmd->cmd_par3);
1651 		break;
1652 	}
1653 }
1654 #endif
1655 
1656 static void
1657 txp_set_filter(struct txp_softc *sc)
1658 {
1659 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
1660 	uint16_t filter;
1661 	struct ifmultiaddr *ifma;
1662 
1663 	if (ifp->if_flags & IFF_PROMISC) {
1664 		filter = TXP_RXFILT_PROMISC;
1665 		goto setit;
1666 	}
1667 
1668 	filter = TXP_RXFILT_DIRECT;
1669 
1670 	if (ifp->if_flags & IFF_BROADCAST)
1671 		filter |= TXP_RXFILT_BROADCAST;
1672 
1673 	if (ifp->if_flags & IFF_ALLMULTI) {
1674 		filter |= TXP_RXFILT_ALLMULTI;
1675 	} else {
1676 		uint32_t hashbit, hash[2];
1677 		int mcnt = 0;
1678 
1679 		hash[0] = hash[1] = 0;
1680 
1681 		LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1682 			if (ifma->ifma_addr->sa_family != AF_LINK)
1683 				continue;
1684 
1685 			mcnt++;
1686 			hashbit = (uint16_t)(ether_crc32_be(
1687 			    LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1688 			    ETHER_ADDR_LEN) & (64 - 1));
1689 			hash[hashbit / 32] |= (1 << hashbit % 32);
1690 		}
1691 
1692 		if (mcnt > 0) {
1693 			filter |= TXP_RXFILT_HASHMULTI;
1694 			txp_command(sc, TXP_CMD_MCAST_HASH_MASK_WRITE,
1695 			    2, hash[0], hash[1], NULL, NULL, NULL, 0);
1696 		}
1697 	}
1698 
1699 setit:
1700 	txp_command(sc, TXP_CMD_RX_FILTER_WRITE, filter, 0, 0,
1701 	    NULL, NULL, NULL, 1);
1702 }
1703 
1704 static void
1705 txp_capabilities(struct txp_softc *sc)
1706 {
1707 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
1708 	struct txp_rsp_desc *rsp = NULL;
1709 	struct txp_ext_desc *ext;
1710 
1711 	if (txp_command2(sc, TXP_CMD_OFFLOAD_READ, 0, 0, 0, NULL, 0, &rsp, 1))
1712 		goto out;
1713 
1714 	if (rsp->rsp_numdesc != 1)
1715 		goto out;
1716 	ext = (struct txp_ext_desc *)(rsp + 1);
1717 
1718 	sc->sc_tx_capability = ext->ext_1 & OFFLOAD_MASK;
1719 	sc->sc_rx_capability = ext->ext_2 & OFFLOAD_MASK;
1720 	ifp->if_capabilities = 0;
1721 
1722 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_VLAN) {
1723 		sc->sc_tx_capability |= OFFLOAD_VLAN;
1724 		sc->sc_rx_capability |= OFFLOAD_VLAN;
1725 	}
1726 
1727 #if 0
1728 	/* not ready yet */
1729 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_IPSEC) {
1730 		sc->sc_tx_capability |= OFFLOAD_IPSEC;
1731 		sc->sc_rx_capability |= OFFLOAD_IPSEC;
1732 		ifp->if_capabilities |= IFCAP_IPSEC;
1733 	}
1734 #endif
1735 
1736 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_IPCKSUM) {
1737 		sc->sc_tx_capability |= OFFLOAD_IPCKSUM;
1738 		sc->sc_rx_capability |= OFFLOAD_IPCKSUM;
1739 		ifp->if_capabilities |= IFCAP_HWCSUM;
1740 		ifp->if_hwassist |= CSUM_IP;
1741 	}
1742 
1743 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_TCPCKSUM) {
1744 #if 0
1745 		sc->sc_tx_capability |= OFFLOAD_TCPCKSUM;
1746 #endif
1747 		sc->sc_rx_capability |= OFFLOAD_TCPCKSUM;
1748 		ifp->if_capabilities |= IFCAP_HWCSUM;
1749 	}
1750 
1751 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_UDPCKSUM) {
1752 #if 0
1753 		sc->sc_tx_capability |= OFFLOAD_UDPCKSUM;
1754 #endif
1755 		sc->sc_rx_capability |= OFFLOAD_UDPCKSUM;
1756 		ifp->if_capabilities |= IFCAP_HWCSUM;
1757 	}
1758 	ifp->if_capenable = ifp->if_capabilities;
1759 
1760 	if (txp_command(sc, TXP_CMD_OFFLOAD_WRITE, 0,
1761 	    sc->sc_tx_capability, sc->sc_rx_capability, NULL, NULL, NULL, 1))
1762 		goto out;
1763 
1764 out:
1765 	if (rsp != NULL)
1766 		free(rsp, M_DEVBUF);
1767 
1768 	return;
1769 }
1770