xref: /freebsd/sys/dev/sfxge/sfxge.c (revision 29fc4075e69fd27de0cded313ac6000165d99f8b)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2010-2016 Solarflare Communications Inc.
5  * All rights reserved.
6  *
7  * This software was developed in part by Philip Paeps under contract for
8  * Solarflare Communications, Inc.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright notice,
14  *    this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright notice,
16  *    this list of conditions and the following disclaimer in the documentation
17  *    and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  *
31  * The views and conclusions contained in the software and documentation are
32  * those of the authors and should not be interpreted as representing official
33  * policies, either expressed or implied, of the FreeBSD Project.
34  */
35 
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38 
39 #include "opt_rss.h"
40 
41 #include <sys/param.h>
42 #include <sys/kernel.h>
43 #include <sys/bus.h>
44 #include <sys/rman.h>
45 #include <sys/lock.h>
46 #include <sys/module.h>
47 #include <sys/mutex.h>
48 #include <sys/smp.h>
49 #include <sys/socket.h>
50 #include <sys/taskqueue.h>
51 #include <sys/sockio.h>
52 #include <sys/sysctl.h>
53 #include <sys/priv.h>
54 #include <sys/syslog.h>
55 
56 #include <dev/pci/pcireg.h>
57 #include <dev/pci/pcivar.h>
58 
59 #include <net/ethernet.h>
60 #include <net/if.h>
61 #include <net/if_var.h>
62 #include <net/if_media.h>
63 #include <net/if_types.h>
64 
65 #ifdef RSS
66 #include <net/rss_config.h>
67 #endif
68 
69 #include "common/efx.h"
70 
71 #include "sfxge.h"
72 #include "sfxge_rx.h"
73 #include "sfxge_ioc.h"
74 #include "sfxge_version.h"
75 
76 #define	SFXGE_CAP (IFCAP_VLAN_MTU | IFCAP_VLAN_HWCSUM |			\
77 		   IFCAP_RXCSUM | IFCAP_TXCSUM |			\
78 		   IFCAP_RXCSUM_IPV6 | IFCAP_TXCSUM_IPV6 |		\
79 		   IFCAP_TSO4 | IFCAP_TSO6 |				\
80 		   IFCAP_JUMBO_MTU |					\
81 		   IFCAP_VLAN_HWTSO | IFCAP_LINKSTATE | IFCAP_HWSTATS)
82 #define	SFXGE_CAP_ENABLE SFXGE_CAP
83 #define	SFXGE_CAP_FIXED (IFCAP_VLAN_MTU |				\
84 			 IFCAP_JUMBO_MTU | IFCAP_LINKSTATE | IFCAP_HWSTATS)
85 
86 MALLOC_DEFINE(M_SFXGE, "sfxge", "Solarflare 10GigE driver");
87 
88 SYSCTL_NODE(_hw, OID_AUTO, sfxge, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
89     "SFXGE driver parameters");
90 
91 #define	SFXGE_PARAM_RX_RING	SFXGE_PARAM(rx_ring)
92 static int sfxge_rx_ring_entries = SFXGE_NDESCS;
93 TUNABLE_INT(SFXGE_PARAM_RX_RING, &sfxge_rx_ring_entries);
94 SYSCTL_INT(_hw_sfxge, OID_AUTO, rx_ring, CTLFLAG_RDTUN,
95 	   &sfxge_rx_ring_entries, 0,
96 	   "Maximum number of descriptors in a receive ring");
97 
98 #define	SFXGE_PARAM_TX_RING	SFXGE_PARAM(tx_ring)
99 static int sfxge_tx_ring_entries = SFXGE_NDESCS;
100 TUNABLE_INT(SFXGE_PARAM_TX_RING, &sfxge_tx_ring_entries);
101 SYSCTL_INT(_hw_sfxge, OID_AUTO, tx_ring, CTLFLAG_RDTUN,
102 	   &sfxge_tx_ring_entries, 0,
103 	   "Maximum number of descriptors in a transmit ring");
104 
105 #define	SFXGE_PARAM_RESTART_ATTEMPTS	SFXGE_PARAM(restart_attempts)
106 static int sfxge_restart_attempts = 3;
107 TUNABLE_INT(SFXGE_PARAM_RESTART_ATTEMPTS, &sfxge_restart_attempts);
108 SYSCTL_INT(_hw_sfxge, OID_AUTO, restart_attempts, CTLFLAG_RDTUN,
109 	   &sfxge_restart_attempts, 0,
110 	   "Maximum number of attempts to bring interface up after reset");
111 
112 #if EFSYS_OPT_MCDI_LOGGING
113 #define	SFXGE_PARAM_MCDI_LOGGING	SFXGE_PARAM(mcdi_logging)
114 static int sfxge_mcdi_logging = 0;
115 TUNABLE_INT(SFXGE_PARAM_MCDI_LOGGING, &sfxge_mcdi_logging);
116 #endif
117 
118 static void
119 sfxge_reset(void *arg, int npending);
120 
121 static int
122 sfxge_estimate_rsrc_limits(struct sfxge_softc *sc)
123 {
124 	efx_drv_limits_t limits;
125 	int rc;
126 	unsigned int evq_max;
127 	uint32_t evq_allocated;
128 	uint32_t rxq_allocated;
129 	uint32_t txq_allocated;
130 
131 	/*
132 	 * Limit the number of event queues to:
133 	 *  - number of CPUs
134 	 *  - hardwire maximum RSS channels
135 	 *  - administratively specified maximum RSS channels
136 	 */
137 #ifdef RSS
138 	/*
139 	 * Avoid extra limitations so that the number of queues
140 	 * may be configured at administrator's will
141 	 */
142 	evq_max = MIN(MAX(rss_getnumbuckets(), 1), EFX_MAXRSS);
143 #else
144 	evq_max = MIN(mp_ncpus, EFX_MAXRSS);
145 #endif
146 	if (sc->max_rss_channels > 0)
147 		evq_max = MIN(evq_max, sc->max_rss_channels);
148 
149 	memset(&limits, 0, sizeof(limits));
150 
151 	limits.edl_min_evq_count = 1;
152 	limits.edl_max_evq_count = evq_max;
153 	limits.edl_min_txq_count = SFXGE_EVQ0_N_TXQ(sc);
154 	limits.edl_max_txq_count = evq_max + SFXGE_EVQ0_N_TXQ(sc) - 1;
155 	limits.edl_min_rxq_count = 1;
156 	limits.edl_max_rxq_count = evq_max;
157 
158 	efx_nic_set_drv_limits(sc->enp, &limits);
159 
160 	if ((rc = efx_nic_init(sc->enp)) != 0)
161 		return (rc);
162 
163 	rc = efx_nic_get_vi_pool(sc->enp, &evq_allocated, &rxq_allocated,
164 				 &txq_allocated);
165 	if (rc != 0) {
166 		efx_nic_fini(sc->enp);
167 		return (rc);
168 	}
169 
170 	KASSERT(txq_allocated >= SFXGE_EVQ0_N_TXQ(sc),
171 		("txq_allocated < %u", SFXGE_EVQ0_N_TXQ(sc)));
172 
173 	sc->evq_max = MIN(evq_allocated, evq_max);
174 	sc->evq_max = MIN(rxq_allocated, sc->evq_max);
175 	sc->evq_max = MIN(txq_allocated - (SFXGE_EVQ0_N_TXQ(sc) - 1),
176 			  sc->evq_max);
177 
178 	KASSERT(sc->evq_max <= evq_max,
179 		("allocated more than maximum requested"));
180 
181 #ifdef RSS
182 	if (sc->evq_max < rss_getnumbuckets())
183 		device_printf(sc->dev, "The number of allocated queues (%u) "
184 			      "is less than the number of RSS buckets (%u); "
185 			      "performance degradation might be observed",
186 			      sc->evq_max, rss_getnumbuckets());
187 #endif
188 
189 	/*
190 	 * NIC is kept initialized in the case of success to be able to
191 	 * initialize port to find out media types.
192 	 */
193 	return (0);
194 }
195 
196 static int
197 sfxge_set_drv_limits(struct sfxge_softc *sc)
198 {
199 	efx_drv_limits_t limits;
200 
201 	memset(&limits, 0, sizeof(limits));
202 
203 	/* Limits are strict since take into account initial estimation */
204 	limits.edl_min_evq_count = limits.edl_max_evq_count =
205 	    sc->intr.n_alloc;
206 	limits.edl_min_txq_count = limits.edl_max_txq_count =
207 	    sc->intr.n_alloc + SFXGE_EVQ0_N_TXQ(sc) - 1;
208 	limits.edl_min_rxq_count = limits.edl_max_rxq_count =
209 	    sc->intr.n_alloc;
210 
211 	return (efx_nic_set_drv_limits(sc->enp, &limits));
212 }
213 
214 static int
215 sfxge_start(struct sfxge_softc *sc)
216 {
217 	int rc;
218 
219 	SFXGE_ADAPTER_LOCK_ASSERT_OWNED(sc);
220 
221 	if (sc->init_state == SFXGE_STARTED)
222 		return (0);
223 
224 	if (sc->init_state != SFXGE_REGISTERED) {
225 		rc = EINVAL;
226 		goto fail;
227 	}
228 
229 	/* Set required resource limits */
230 	if ((rc = sfxge_set_drv_limits(sc)) != 0)
231 		goto fail;
232 
233 	if ((rc = efx_nic_init(sc->enp)) != 0)
234 		goto fail;
235 
236 	/* Start processing interrupts. */
237 	if ((rc = sfxge_intr_start(sc)) != 0)
238 		goto fail2;
239 
240 	/* Start processing events. */
241 	if ((rc = sfxge_ev_start(sc)) != 0)
242 		goto fail3;
243 
244 	/* Fire up the port. */
245 	if ((rc = sfxge_port_start(sc)) != 0)
246 		goto fail4;
247 
248 	/* Start the receiver side. */
249 	if ((rc = sfxge_rx_start(sc)) != 0)
250 		goto fail5;
251 
252 	/* Start the transmitter side. */
253 	if ((rc = sfxge_tx_start(sc)) != 0)
254 		goto fail6;
255 
256 	sc->init_state = SFXGE_STARTED;
257 
258 	/* Tell the stack we're running. */
259 	sc->ifnet->if_drv_flags |= IFF_DRV_RUNNING;
260 	sc->ifnet->if_drv_flags &= ~IFF_DRV_OACTIVE;
261 
262 	return (0);
263 
264 fail6:
265 	sfxge_rx_stop(sc);
266 
267 fail5:
268 	sfxge_port_stop(sc);
269 
270 fail4:
271 	sfxge_ev_stop(sc);
272 
273 fail3:
274 	sfxge_intr_stop(sc);
275 
276 fail2:
277 	efx_nic_fini(sc->enp);
278 
279 fail:
280 	device_printf(sc->dev, "sfxge_start: %d\n", rc);
281 
282 	return (rc);
283 }
284 
285 static void
286 sfxge_if_init(void *arg)
287 {
288 	struct sfxge_softc *sc;
289 
290 	sc = (struct sfxge_softc *)arg;
291 
292 	SFXGE_ADAPTER_LOCK(sc);
293 	(void)sfxge_start(sc);
294 	SFXGE_ADAPTER_UNLOCK(sc);
295 }
296 
297 static void
298 sfxge_stop(struct sfxge_softc *sc)
299 {
300 	SFXGE_ADAPTER_LOCK_ASSERT_OWNED(sc);
301 
302 	if (sc->init_state != SFXGE_STARTED)
303 		return;
304 
305 	sc->init_state = SFXGE_REGISTERED;
306 
307 	/* Stop the transmitter. */
308 	sfxge_tx_stop(sc);
309 
310 	/* Stop the receiver. */
311 	sfxge_rx_stop(sc);
312 
313 	/* Stop the port. */
314 	sfxge_port_stop(sc);
315 
316 	/* Stop processing events. */
317 	sfxge_ev_stop(sc);
318 
319 	/* Stop processing interrupts. */
320 	sfxge_intr_stop(sc);
321 
322 	efx_nic_fini(sc->enp);
323 
324 	sc->ifnet->if_drv_flags &= ~IFF_DRV_RUNNING;
325 }
326 
327 static int
328 sfxge_vpd_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ioc)
329 {
330 	efx_vpd_value_t value;
331 	int rc = 0;
332 
333 	switch (ioc->u.vpd.op) {
334 	case SFXGE_VPD_OP_GET_KEYWORD:
335 		value.evv_tag = ioc->u.vpd.tag;
336 		value.evv_keyword = ioc->u.vpd.keyword;
337 		rc = efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value);
338 		if (rc != 0)
339 			break;
340 		ioc->u.vpd.len = MIN(ioc->u.vpd.len, value.evv_length);
341 		if (ioc->u.vpd.payload != 0) {
342 			rc = copyout(value.evv_value, ioc->u.vpd.payload,
343 				     ioc->u.vpd.len);
344 		}
345 		break;
346 	case SFXGE_VPD_OP_SET_KEYWORD:
347 		if (ioc->u.vpd.len > sizeof(value.evv_value))
348 			return (EINVAL);
349 		value.evv_tag = ioc->u.vpd.tag;
350 		value.evv_keyword = ioc->u.vpd.keyword;
351 		value.evv_length = ioc->u.vpd.len;
352 		rc = copyin(ioc->u.vpd.payload, value.evv_value, value.evv_length);
353 		if (rc != 0)
354 			break;
355 		rc = efx_vpd_set(sc->enp, sc->vpd_data, sc->vpd_size, &value);
356 		if (rc != 0)
357 			break;
358 		rc = efx_vpd_verify(sc->enp, sc->vpd_data, sc->vpd_size);
359 		if (rc != 0)
360 			break;
361 		rc = efx_vpd_write(sc->enp, sc->vpd_data, sc->vpd_size);
362 		break;
363 	default:
364 		rc = EOPNOTSUPP;
365 		break;
366 	}
367 
368 	return (rc);
369 }
370 
371 static int
372 sfxge_private_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ioc)
373 {
374 	switch (ioc->op) {
375 	case SFXGE_MCDI_IOC:
376 		return (sfxge_mcdi_ioctl(sc, ioc));
377 	case SFXGE_NVRAM_IOC:
378 		return (sfxge_nvram_ioctl(sc, ioc));
379 	case SFXGE_VPD_IOC:
380 		return (sfxge_vpd_ioctl(sc, ioc));
381 	default:
382 		return (EOPNOTSUPP);
383 	}
384 }
385 
386 static int
387 sfxge_if_ioctl(struct ifnet *ifp, unsigned long command, caddr_t data)
388 {
389 	struct sfxge_softc *sc;
390 	struct ifreq *ifr;
391 	sfxge_ioc_t ioc;
392 	int error;
393 
394 	ifr = (struct ifreq *)data;
395 	sc = ifp->if_softc;
396 	error = 0;
397 
398 	switch (command) {
399 	case SIOCSIFFLAGS:
400 		SFXGE_ADAPTER_LOCK(sc);
401 		if (ifp->if_flags & IFF_UP) {
402 			if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
403 				if ((ifp->if_flags ^ sc->if_flags) &
404 				    (IFF_PROMISC | IFF_ALLMULTI)) {
405 					sfxge_mac_filter_set(sc);
406 				}
407 			} else
408 				sfxge_start(sc);
409 		} else
410 			if (ifp->if_drv_flags & IFF_DRV_RUNNING)
411 				sfxge_stop(sc);
412 		sc->if_flags = ifp->if_flags;
413 		SFXGE_ADAPTER_UNLOCK(sc);
414 		break;
415 	case SIOCSIFMTU:
416 		if (ifr->ifr_mtu == ifp->if_mtu) {
417 			/* Nothing to do */
418 			error = 0;
419 		} else if (ifr->ifr_mtu > SFXGE_MAX_MTU) {
420 			error = EINVAL;
421 		} else if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
422 			ifp->if_mtu = ifr->ifr_mtu;
423 			error = 0;
424 		} else {
425 			/* Restart required */
426 			SFXGE_ADAPTER_LOCK(sc);
427 			sfxge_stop(sc);
428 			ifp->if_mtu = ifr->ifr_mtu;
429 			error = sfxge_start(sc);
430 			SFXGE_ADAPTER_UNLOCK(sc);
431 			if (error != 0) {
432 				ifp->if_flags &= ~IFF_UP;
433 				ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
434 				if_down(ifp);
435 			}
436 		}
437 		break;
438 	case SIOCADDMULTI:
439 	case SIOCDELMULTI:
440 		if (ifp->if_drv_flags & IFF_DRV_RUNNING)
441 			sfxge_mac_filter_set(sc);
442 		break;
443 	case SIOCSIFCAP:
444 	{
445 		int reqcap = ifr->ifr_reqcap;
446 		int capchg_mask;
447 
448 		SFXGE_ADAPTER_LOCK(sc);
449 
450 		/* Capabilities to be changed in accordance with request */
451 		capchg_mask = ifp->if_capenable ^ reqcap;
452 
453 		/*
454 		 * The networking core already rejects attempts to
455 		 * enable capabilities we don't have.  We still have
456 		 * to reject attempts to disable capabilities that we
457 		 * can't (yet) disable.
458 		 */
459 		KASSERT((reqcap & ~ifp->if_capabilities) == 0,
460 		    ("Unsupported capabilities 0x%x requested 0x%x vs "
461 		     "supported 0x%x",
462 		     reqcap & ~ifp->if_capabilities,
463 		     reqcap , ifp->if_capabilities));
464 		if (capchg_mask & SFXGE_CAP_FIXED) {
465 			error = EINVAL;
466 			SFXGE_ADAPTER_UNLOCK(sc);
467 			break;
468 		}
469 
470 		/* Check request before any changes */
471 		if ((capchg_mask & IFCAP_TSO4) &&
472 		    (reqcap & (IFCAP_TSO4 | IFCAP_TXCSUM)) == IFCAP_TSO4) {
473 			error = EAGAIN;
474 			SFXGE_ADAPTER_UNLOCK(sc);
475 			if_printf(ifp, "enable txcsum before tso4\n");
476 			break;
477 		}
478 		if ((capchg_mask & IFCAP_TSO6) &&
479 		    (reqcap & (IFCAP_TSO6 | IFCAP_TXCSUM_IPV6)) == IFCAP_TSO6) {
480 			error = EAGAIN;
481 			SFXGE_ADAPTER_UNLOCK(sc);
482 			if_printf(ifp, "enable txcsum6 before tso6\n");
483 			break;
484 		}
485 
486 		if (reqcap & IFCAP_TXCSUM) {
487 			ifp->if_hwassist |= (CSUM_IP | CSUM_TCP | CSUM_UDP);
488 		} else {
489 			ifp->if_hwassist &= ~(CSUM_IP | CSUM_TCP | CSUM_UDP);
490 			if (reqcap & IFCAP_TSO4) {
491 				reqcap &= ~IFCAP_TSO4;
492 				if_printf(ifp,
493 				    "tso4 disabled due to -txcsum\n");
494 			}
495 		}
496 		if (reqcap & IFCAP_TXCSUM_IPV6) {
497 			ifp->if_hwassist |= (CSUM_TCP_IPV6 | CSUM_UDP_IPV6);
498 		} else {
499 			ifp->if_hwassist &= ~(CSUM_TCP_IPV6 | CSUM_UDP_IPV6);
500 			if (reqcap & IFCAP_TSO6) {
501 				reqcap &= ~IFCAP_TSO6;
502 				if_printf(ifp,
503 				    "tso6 disabled due to -txcsum6\n");
504 			}
505 		}
506 
507 		/*
508 		 * The kernel takes both IFCAP_TSOx and CSUM_TSO into
509 		 * account before using TSO. So, we do not touch
510 		 * checksum flags when IFCAP_TSOx is modified.
511 		 * Note that CSUM_TSO is (CSUM_IP_TSO|CSUM_IP6_TSO),
512 		 * but both bits are set in IPv4 and IPv6 mbufs.
513 		 */
514 
515 		ifp->if_capenable = reqcap;
516 
517 		SFXGE_ADAPTER_UNLOCK(sc);
518 		break;
519 	}
520 	case SIOCSIFMEDIA:
521 	case SIOCGIFMEDIA:
522 		error = ifmedia_ioctl(ifp, ifr, &sc->media, command);
523 		break;
524 #ifdef SIOCGI2C
525 	case SIOCGI2C:
526 	{
527 		struct ifi2creq i2c;
528 
529 		error = copyin(ifr_data_get_ptr(ifr), &i2c, sizeof(i2c));
530 		if (error != 0)
531 			break;
532 
533 		if (i2c.len > sizeof(i2c.data)) {
534 			error = EINVAL;
535 			break;
536 		}
537 
538 		SFXGE_ADAPTER_LOCK(sc);
539 		error = efx_phy_module_get_info(sc->enp, i2c.dev_addr,
540 						i2c.offset, i2c.len,
541 						&i2c.data[0]);
542 		SFXGE_ADAPTER_UNLOCK(sc);
543 		if (error == 0)
544 			error = copyout(&i2c, ifr_data_get_ptr(ifr),
545 			    sizeof(i2c));
546 		break;
547 	}
548 #endif
549 	case SIOCGPRIVATE_0:
550 		error = priv_check(curthread, PRIV_DRIVER);
551 		if (error != 0)
552 			break;
553 		error = copyin(ifr_data_get_ptr(ifr), &ioc, sizeof(ioc));
554 		if (error != 0)
555 			return (error);
556 		error = sfxge_private_ioctl(sc, &ioc);
557 		if (error == 0) {
558 			error = copyout(&ioc, ifr_data_get_ptr(ifr),
559 			    sizeof(ioc));
560 		}
561 		break;
562 	default:
563 		error = ether_ioctl(ifp, command, data);
564 	}
565 
566 	return (error);
567 }
568 
569 static void
570 sfxge_ifnet_fini(struct ifnet *ifp)
571 {
572 	struct sfxge_softc *sc = ifp->if_softc;
573 
574 	SFXGE_ADAPTER_LOCK(sc);
575 	sfxge_stop(sc);
576 	SFXGE_ADAPTER_UNLOCK(sc);
577 
578 	ifmedia_removeall(&sc->media);
579 	ether_ifdetach(ifp);
580 	if_free(ifp);
581 }
582 
583 static int
584 sfxge_ifnet_init(struct ifnet *ifp, struct sfxge_softc *sc)
585 {
586 	const efx_nic_cfg_t *encp = efx_nic_cfg_get(sc->enp);
587 	device_t dev;
588 	int rc;
589 
590 	dev = sc->dev;
591 	sc->ifnet = ifp;
592 
593 	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
594 	ifp->if_init = sfxge_if_init;
595 	ifp->if_softc = sc;
596 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
597 	ifp->if_ioctl = sfxge_if_ioctl;
598 
599 	ifp->if_capabilities = SFXGE_CAP;
600 	ifp->if_capenable = SFXGE_CAP_ENABLE;
601 	ifp->if_hw_tsomax = SFXGE_TSO_MAX_SIZE;
602 	ifp->if_hw_tsomaxsegcount = SFXGE_TX_MAPPING_MAX_SEG;
603 	ifp->if_hw_tsomaxsegsize = PAGE_SIZE;
604 
605 #ifdef SFXGE_LRO
606 	ifp->if_capabilities |= IFCAP_LRO;
607 	ifp->if_capenable |= IFCAP_LRO;
608 #endif
609 
610 	if (encp->enc_hw_tx_insert_vlan_enabled) {
611 		ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING;
612 		ifp->if_capenable |= IFCAP_VLAN_HWTAGGING;
613 	}
614 	ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_IP | CSUM_TSO |
615 			   CSUM_TCP_IPV6 | CSUM_UDP_IPV6;
616 
617 	ether_ifattach(ifp, encp->enc_mac_addr);
618 
619 	ifp->if_transmit = sfxge_if_transmit;
620 	ifp->if_qflush = sfxge_if_qflush;
621 
622 	ifp->if_get_counter = sfxge_get_counter;
623 
624 	DBGPRINT(sc->dev, "ifmedia_init");
625 	if ((rc = sfxge_port_ifmedia_init(sc)) != 0)
626 		goto fail;
627 
628 	return (0);
629 
630 fail:
631 	ether_ifdetach(sc->ifnet);
632 	return (rc);
633 }
634 
635 void
636 sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n, uint32_t *idp)
637 {
638 	KASSERT(sc->buffer_table_next + n <=
639 		efx_nic_cfg_get(sc->enp)->enc_buftbl_limit,
640 		("buffer table full"));
641 
642 	*idp = sc->buffer_table_next;
643 	sc->buffer_table_next += n;
644 }
645 
646 static int
647 sfxge_bar_init(struct sfxge_softc *sc)
648 {
649 	efsys_bar_t *esbp = &sc->bar;
650 
651 	esbp->esb_rid = PCIR_BAR(sc->mem_bar);
652 	if ((esbp->esb_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY,
653 	    &esbp->esb_rid, RF_ACTIVE)) == NULL) {
654 		device_printf(sc->dev, "Cannot allocate BAR region %d\n",
655 		    sc->mem_bar);
656 		return (ENXIO);
657 	}
658 	esbp->esb_tag = rman_get_bustag(esbp->esb_res);
659 	esbp->esb_handle = rman_get_bushandle(esbp->esb_res);
660 
661 	SFXGE_BAR_LOCK_INIT(esbp, device_get_nameunit(sc->dev));
662 
663 	return (0);
664 }
665 
666 static void
667 sfxge_bar_fini(struct sfxge_softc *sc)
668 {
669 	efsys_bar_t *esbp = &sc->bar;
670 
671 	bus_release_resource(sc->dev, SYS_RES_MEMORY, esbp->esb_rid,
672 	    esbp->esb_res);
673 	SFXGE_BAR_LOCK_DESTROY(esbp);
674 }
675 
676 static int
677 sfxge_create(struct sfxge_softc *sc)
678 {
679 	device_t dev;
680 	efx_nic_t *enp;
681 	int error;
682 	char rss_param_name[sizeof(SFXGE_PARAM(%d.max_rss_channels))];
683 #if EFSYS_OPT_MCDI_LOGGING
684 	char mcdi_log_param_name[sizeof(SFXGE_PARAM(%d.mcdi_logging))];
685 #endif
686 
687 	dev = sc->dev;
688 
689 	SFXGE_ADAPTER_LOCK_INIT(sc, device_get_nameunit(sc->dev));
690 
691 	sc->max_rss_channels = 0;
692 	snprintf(rss_param_name, sizeof(rss_param_name),
693 		 SFXGE_PARAM(%d.max_rss_channels),
694 		 (int)device_get_unit(dev));
695 	TUNABLE_INT_FETCH(rss_param_name, &sc->max_rss_channels);
696 #if EFSYS_OPT_MCDI_LOGGING
697 	sc->mcdi_logging = sfxge_mcdi_logging;
698 	snprintf(mcdi_log_param_name, sizeof(mcdi_log_param_name),
699 		 SFXGE_PARAM(%d.mcdi_logging),
700 		 (int)device_get_unit(dev));
701 	TUNABLE_INT_FETCH(mcdi_log_param_name, &sc->mcdi_logging);
702 #endif
703 
704 	sc->stats_node = SYSCTL_ADD_NODE(device_get_sysctl_ctx(dev),
705 	    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
706 	    CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Statistics");
707 	if (sc->stats_node == NULL) {
708 		error = ENOMEM;
709 		goto fail;
710 	}
711 
712 	TASK_INIT(&sc->task_reset, 0, sfxge_reset, sc);
713 
714 	(void) pci_enable_busmaster(dev);
715 
716 	/* Initialize DMA mappings. */
717 	DBGPRINT(sc->dev, "dma_init...");
718 	if ((error = sfxge_dma_init(sc)) != 0)
719 		goto fail;
720 
721 	error = efx_family(pci_get_vendor(dev), pci_get_device(dev),
722 	    &sc->family, &sc->mem_bar);
723 	KASSERT(error == 0, ("Family should be filtered by sfxge_probe()"));
724 
725 	/* Map the device registers. */
726 	DBGPRINT(sc->dev, "bar_init...");
727 	if ((error = sfxge_bar_init(sc)) != 0)
728 		goto fail;
729 
730 	DBGPRINT(sc->dev, "nic_create...");
731 
732 	/* Create the common code nic object. */
733 	SFXGE_EFSYS_LOCK_INIT(&sc->enp_lock,
734 			      device_get_nameunit(sc->dev), "nic");
735 	if ((error = efx_nic_create(sc->family, (efsys_identifier_t *)sc,
736 	    &sc->bar, &sc->enp_lock, &enp)) != 0)
737 		goto fail3;
738 	sc->enp = enp;
739 
740 	/* Initialize MCDI to talk to the microcontroller. */
741 	DBGPRINT(sc->dev, "mcdi_init...");
742 	if ((error = sfxge_mcdi_init(sc)) != 0)
743 		goto fail4;
744 
745 	/* Probe the NIC and build the configuration data area. */
746 	DBGPRINT(sc->dev, "nic_probe...");
747 	if ((error = efx_nic_probe(enp, EFX_FW_VARIANT_DONT_CARE)) != 0)
748 		goto fail5;
749 
750 	if (!ISP2(sfxge_rx_ring_entries) ||
751 	    (sfxge_rx_ring_entries < EFX_RXQ_MINNDESCS) ||
752 	    (sfxge_rx_ring_entries > EFX_RXQ_MAXNDESCS)) {
753 		log(LOG_ERR, "%s=%d must be power of 2 from %u to %u",
754 		    SFXGE_PARAM_RX_RING, sfxge_rx_ring_entries,
755 		    EFX_RXQ_MINNDESCS, EFX_RXQ_MAXNDESCS);
756 		error = EINVAL;
757 		goto fail_rx_ring_entries;
758 	}
759 	sc->rxq_entries = sfxge_rx_ring_entries;
760 
761 	if (efx_nic_cfg_get(enp)->enc_features & EFX_FEATURE_TXQ_CKSUM_OP_DESC)
762 		sc->txq_dynamic_cksum_toggle_supported = B_TRUE;
763 	else
764 		sc->txq_dynamic_cksum_toggle_supported = B_FALSE;
765 
766 	if (!ISP2(sfxge_tx_ring_entries) ||
767 	    (sfxge_tx_ring_entries < EFX_TXQ_MINNDESCS) ||
768 	    (sfxge_tx_ring_entries > efx_nic_cfg_get(enp)->enc_txq_max_ndescs)) {
769 		log(LOG_ERR, "%s=%d must be power of 2 from %u to %u",
770 		    SFXGE_PARAM_TX_RING, sfxge_tx_ring_entries,
771 		    EFX_TXQ_MINNDESCS, efx_nic_cfg_get(enp)->enc_txq_max_ndescs);
772 		error = EINVAL;
773 		goto fail_tx_ring_entries;
774 	}
775 	sc->txq_entries = sfxge_tx_ring_entries;
776 
777 	SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
778 			  SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
779 			  OID_AUTO, "version", CTLFLAG_RD,
780 			  SFXGE_VERSION_STRING, 0,
781 			  "Driver version");
782 
783 	SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
784 			SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
785 			OID_AUTO, "phy_type", CTLFLAG_RD,
786 			NULL, efx_nic_cfg_get(enp)->enc_phy_type,
787 			"PHY type");
788 
789 	/* Initialize the NVRAM. */
790 	DBGPRINT(sc->dev, "nvram_init...");
791 	if ((error = efx_nvram_init(enp)) != 0)
792 		goto fail6;
793 
794 	/* Initialize the VPD. */
795 	DBGPRINT(sc->dev, "vpd_init...");
796 	if ((error = efx_vpd_init(enp)) != 0)
797 		goto fail7;
798 
799 	efx_mcdi_new_epoch(enp);
800 
801 	/* Reset the NIC. */
802 	DBGPRINT(sc->dev, "nic_reset...");
803 	if ((error = efx_nic_reset(enp)) != 0)
804 		goto fail8;
805 
806 	/* Initialize buffer table allocation. */
807 	sc->buffer_table_next = 0;
808 
809 	/*
810 	 * Guarantee minimum and estimate maximum number of event queues
811 	 * to take it into account when MSI-X interrupts are allocated.
812 	 * It initializes NIC and keeps it initialized on success.
813 	 */
814 	if ((error = sfxge_estimate_rsrc_limits(sc)) != 0)
815 		goto fail8;
816 
817 	/* Set up interrupts. */
818 	DBGPRINT(sc->dev, "intr_init...");
819 	if ((error = sfxge_intr_init(sc)) != 0)
820 		goto fail9;
821 
822 	/* Initialize event processing state. */
823 	DBGPRINT(sc->dev, "ev_init...");
824 	if ((error = sfxge_ev_init(sc)) != 0)
825 		goto fail11;
826 
827 	/* Initialize port state. */
828 	DBGPRINT(sc->dev, "port_init...");
829 	if ((error = sfxge_port_init(sc)) != 0)
830 		goto fail12;
831 
832 	/* Initialize receive state. */
833 	DBGPRINT(sc->dev, "rx_init...");
834 	if ((error = sfxge_rx_init(sc)) != 0)
835 		goto fail13;
836 
837 	/* Initialize transmit state. */
838 	DBGPRINT(sc->dev, "tx_init...");
839 	if ((error = sfxge_tx_init(sc)) != 0)
840 		goto fail14;
841 
842 	sc->init_state = SFXGE_INITIALIZED;
843 
844 	DBGPRINT(sc->dev, "success");
845 	return (0);
846 
847 fail14:
848 	sfxge_rx_fini(sc);
849 
850 fail13:
851 	sfxge_port_fini(sc);
852 
853 fail12:
854 	sfxge_ev_fini(sc);
855 
856 fail11:
857 	sfxge_intr_fini(sc);
858 
859 fail9:
860 	efx_nic_fini(sc->enp);
861 
862 fail8:
863 	efx_vpd_fini(enp);
864 
865 fail7:
866 	efx_nvram_fini(enp);
867 
868 fail6:
869 fail_tx_ring_entries:
870 fail_rx_ring_entries:
871 	efx_nic_unprobe(enp);
872 
873 fail5:
874 	sfxge_mcdi_fini(sc);
875 
876 fail4:
877 	sc->enp = NULL;
878 	efx_nic_destroy(enp);
879 	SFXGE_EFSYS_LOCK_DESTROY(&sc->enp_lock);
880 
881 fail3:
882 	sfxge_bar_fini(sc);
883 	(void) pci_disable_busmaster(sc->dev);
884 
885 fail:
886 	DBGPRINT(sc->dev, "failed %d", error);
887 	sc->dev = NULL;
888 	SFXGE_ADAPTER_LOCK_DESTROY(sc);
889 	return (error);
890 }
891 
892 static void
893 sfxge_destroy(struct sfxge_softc *sc)
894 {
895 	efx_nic_t *enp;
896 
897 	/* Clean up transmit state. */
898 	sfxge_tx_fini(sc);
899 
900 	/* Clean up receive state. */
901 	sfxge_rx_fini(sc);
902 
903 	/* Clean up port state. */
904 	sfxge_port_fini(sc);
905 
906 	/* Clean up event processing state. */
907 	sfxge_ev_fini(sc);
908 
909 	/* Clean up interrupts. */
910 	sfxge_intr_fini(sc);
911 
912 	/* Tear down common code subsystems. */
913 	efx_nic_reset(sc->enp);
914 	efx_vpd_fini(sc->enp);
915 	efx_nvram_fini(sc->enp);
916 	efx_nic_unprobe(sc->enp);
917 
918 	/* Tear down MCDI. */
919 	sfxge_mcdi_fini(sc);
920 
921 	/* Destroy common code context. */
922 	enp = sc->enp;
923 	sc->enp = NULL;
924 	efx_nic_destroy(enp);
925 
926 	/* Free DMA memory. */
927 	sfxge_dma_fini(sc);
928 
929 	/* Free mapped BARs. */
930 	sfxge_bar_fini(sc);
931 
932 	(void) pci_disable_busmaster(sc->dev);
933 
934 	taskqueue_drain(taskqueue_thread, &sc->task_reset);
935 
936 	/* Destroy the softc lock. */
937 	SFXGE_ADAPTER_LOCK_DESTROY(sc);
938 }
939 
940 static int
941 sfxge_vpd_handler(SYSCTL_HANDLER_ARGS)
942 {
943 	struct sfxge_softc *sc = arg1;
944 	efx_vpd_value_t value;
945 	int rc;
946 
947 	value.evv_tag = arg2 >> 16;
948 	value.evv_keyword = arg2 & 0xffff;
949 	if ((rc = efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value))
950 	    != 0)
951 		return (rc);
952 
953 	return (SYSCTL_OUT(req, value.evv_value, value.evv_length));
954 }
955 
956 static void
957 sfxge_vpd_try_add(struct sfxge_softc *sc, struct sysctl_oid_list *list,
958 		  efx_vpd_tag_t tag, const char *keyword)
959 {
960 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
961 	efx_vpd_value_t value;
962 
963 	/* Check whether VPD tag/keyword is present */
964 	value.evv_tag = tag;
965 	value.evv_keyword = EFX_VPD_KEYWORD(keyword[0], keyword[1]);
966 	if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) != 0)
967 		return;
968 
969 	SYSCTL_ADD_PROC(ctx, list, OID_AUTO, keyword,
970 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
971 	    sc, tag << 16 | EFX_VPD_KEYWORD(keyword[0], keyword[1]),
972 	    sfxge_vpd_handler, "A", "");
973 }
974 
975 static int
976 sfxge_vpd_init(struct sfxge_softc *sc)
977 {
978 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
979 	struct sysctl_oid *vpd_node;
980 	struct sysctl_oid_list *vpd_list;
981 	char keyword[3];
982 	efx_vpd_value_t value;
983 	int rc;
984 
985 	if ((rc = efx_vpd_size(sc->enp, &sc->vpd_size)) != 0) {
986 		/*
987 		 * Unprivileged functions deny VPD access.
988 		 * Simply skip VPD in this case.
989 		 */
990 		if (rc == EACCES)
991 			goto done;
992 		goto fail;
993 	}
994 	sc->vpd_data = malloc(sc->vpd_size, M_SFXGE, M_WAITOK);
995 	if ((rc = efx_vpd_read(sc->enp, sc->vpd_data, sc->vpd_size)) != 0)
996 		goto fail2;
997 
998 	/* Copy ID (product name) into device description, and log it. */
999 	value.evv_tag = EFX_VPD_ID;
1000 	if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) == 0) {
1001 		value.evv_value[value.evv_length] = 0;
1002 		device_set_desc_copy(sc->dev, value.evv_value);
1003 		device_printf(sc->dev, "%s\n", value.evv_value);
1004 	}
1005 
1006 	vpd_node = SYSCTL_ADD_NODE(ctx,
1007 	    SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO, "vpd",
1008 	    CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Vital Product Data");
1009 	vpd_list = SYSCTL_CHILDREN(vpd_node);
1010 
1011 	/* Add sysctls for all expected and any vendor-defined keywords. */
1012 	sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "PN");
1013 	sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "EC");
1014 	sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "SN");
1015 	keyword[0] = 'V';
1016 	keyword[2] = 0;
1017 	for (keyword[1] = '0'; keyword[1] <= '9'; keyword[1]++)
1018 		sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, keyword);
1019 	for (keyword[1] = 'A'; keyword[1] <= 'Z'; keyword[1]++)
1020 		sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, keyword);
1021 
1022 done:
1023 	return (0);
1024 
1025 fail2:
1026 	free(sc->vpd_data, M_SFXGE);
1027 fail:
1028 	return (rc);
1029 }
1030 
1031 static void
1032 sfxge_vpd_fini(struct sfxge_softc *sc)
1033 {
1034 	free(sc->vpd_data, M_SFXGE);
1035 }
1036 
1037 static void
1038 sfxge_reset(void *arg, int npending)
1039 {
1040 	struct sfxge_softc *sc;
1041 	int rc;
1042 	unsigned attempt;
1043 
1044 	(void)npending;
1045 
1046 	sc = (struct sfxge_softc *)arg;
1047 
1048 	SFXGE_ADAPTER_LOCK(sc);
1049 
1050 	if (sc->init_state != SFXGE_STARTED)
1051 		goto done;
1052 
1053 	sfxge_stop(sc);
1054 	efx_nic_reset(sc->enp);
1055 	for (attempt = 0; attempt < sfxge_restart_attempts; ++attempt) {
1056 		if ((rc = sfxge_start(sc)) == 0)
1057 			goto done;
1058 
1059 		device_printf(sc->dev, "start on reset failed (%d)\n", rc);
1060 		DELAY(100000);
1061 	}
1062 
1063 	device_printf(sc->dev, "reset failed; interface is now stopped\n");
1064 
1065 done:
1066 	SFXGE_ADAPTER_UNLOCK(sc);
1067 }
1068 
1069 void
1070 sfxge_schedule_reset(struct sfxge_softc *sc)
1071 {
1072 	taskqueue_enqueue(taskqueue_thread, &sc->task_reset);
1073 }
1074 
1075 static int
1076 sfxge_attach(device_t dev)
1077 {
1078 	struct sfxge_softc *sc;
1079 	struct ifnet *ifp;
1080 	int error;
1081 
1082 	sc = device_get_softc(dev);
1083 	sc->dev = dev;
1084 
1085 	/* Allocate ifnet. */
1086 	ifp = if_alloc(IFT_ETHER);
1087 	if (ifp == NULL) {
1088 		device_printf(dev, "Couldn't allocate ifnet\n");
1089 		error = ENOMEM;
1090 		goto fail;
1091 	}
1092 	sc->ifnet = ifp;
1093 
1094 	/* Initialize hardware. */
1095 	DBGPRINT(sc->dev, "create nic");
1096 	if ((error = sfxge_create(sc)) != 0)
1097 		goto fail2;
1098 
1099 	/* Create the ifnet for the port. */
1100 	DBGPRINT(sc->dev, "init ifnet");
1101 	if ((error = sfxge_ifnet_init(ifp, sc)) != 0)
1102 		goto fail3;
1103 
1104 	DBGPRINT(sc->dev, "init vpd");
1105 	if ((error = sfxge_vpd_init(sc)) != 0)
1106 		goto fail4;
1107 
1108 	/*
1109 	 * NIC is initialized inside sfxge_create() and kept inialized
1110 	 * to be able to initialize port to discover media types in
1111 	 * sfxge_ifnet_init().
1112 	 */
1113 	efx_nic_fini(sc->enp);
1114 
1115 	sc->init_state = SFXGE_REGISTERED;
1116 
1117 	DBGPRINT(sc->dev, "success");
1118 	return (0);
1119 
1120 fail4:
1121 	sfxge_ifnet_fini(ifp);
1122 fail3:
1123 	efx_nic_fini(sc->enp);
1124 	sfxge_destroy(sc);
1125 
1126 fail2:
1127 	if_free(sc->ifnet);
1128 
1129 fail:
1130 	DBGPRINT(sc->dev, "failed %d", error);
1131 	return (error);
1132 }
1133 
1134 static int
1135 sfxge_detach(device_t dev)
1136 {
1137 	struct sfxge_softc *sc;
1138 
1139 	sc = device_get_softc(dev);
1140 
1141 	sfxge_vpd_fini(sc);
1142 
1143 	/* Destroy the ifnet. */
1144 	sfxge_ifnet_fini(sc->ifnet);
1145 
1146 	/* Tear down hardware. */
1147 	sfxge_destroy(sc);
1148 
1149 	return (0);
1150 }
1151 
1152 static int
1153 sfxge_probe(device_t dev)
1154 {
1155 	uint16_t pci_vendor_id;
1156 	uint16_t pci_device_id;
1157 	efx_family_t family;
1158 	unsigned int mem_bar;
1159 	int rc;
1160 
1161 	pci_vendor_id = pci_get_vendor(dev);
1162 	pci_device_id = pci_get_device(dev);
1163 
1164 	DBGPRINT(dev, "PCI ID %04x:%04x", pci_vendor_id, pci_device_id);
1165 	rc = efx_family(pci_vendor_id, pci_device_id, &family, &mem_bar);
1166 	if (rc != 0) {
1167 		DBGPRINT(dev, "efx_family fail %d", rc);
1168 		return (ENXIO);
1169 	}
1170 
1171 	if (family == EFX_FAMILY_SIENA) {
1172 		device_set_desc(dev, "Solarflare SFC9000 family");
1173 		return (0);
1174 	}
1175 
1176 	if (family == EFX_FAMILY_HUNTINGTON) {
1177 		device_set_desc(dev, "Solarflare SFC9100 family");
1178 		return (0);
1179 	}
1180 
1181 	if (family == EFX_FAMILY_MEDFORD) {
1182 		device_set_desc(dev, "Solarflare SFC9200 family");
1183 		return (0);
1184 	}
1185 
1186 	if (family == EFX_FAMILY_MEDFORD2) {
1187 		device_set_desc(dev, "Solarflare SFC9250 family");
1188 		return (0);
1189 	}
1190 
1191 	DBGPRINT(dev, "impossible controller family %d", family);
1192 	return (ENXIO);
1193 }
1194 
1195 static device_method_t sfxge_methods[] = {
1196 	DEVMETHOD(device_probe,		sfxge_probe),
1197 	DEVMETHOD(device_attach,	sfxge_attach),
1198 	DEVMETHOD(device_detach,	sfxge_detach),
1199 
1200 	DEVMETHOD_END
1201 };
1202 
1203 static driver_t sfxge_driver = {
1204 	"sfxge",
1205 	sfxge_methods,
1206 	sizeof(struct sfxge_softc)
1207 };
1208 
1209 DRIVER_MODULE(sfxge, pci, sfxge_driver, 0, 0);
1210