FreeBSD/Linux Kernel Cross Reference
sys/dev/sfxge/sfxge.c
1 /*-
2 * Copyright (c) 2010-2011 Solarflare Communications, Inc.
3 * All rights reserved.
4 *
5 * This software was developed in part by Philip Paeps under contract for
6 * Solarflare Communications, Inc.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD: releng/9.2/sys/dev/sfxge/sfxge.c 229093 2011-12-31 14:12:12Z hselasky $");
32
33 #include <sys/param.h>
34 #include <sys/kernel.h>
35 #include <sys/bus.h>
36 #include <sys/rman.h>
37 #include <sys/lock.h>
38 #include <sys/module.h>
39 #include <sys/mutex.h>
40 #include <sys/smp.h>
41 #include <sys/socket.h>
42 #include <sys/taskqueue.h>
43 #include <sys/sockio.h>
44 #include <sys/sysctl.h>
45
46 #include <dev/pci/pcireg.h>
47 #include <dev/pci/pcivar.h>
48
49 #include <net/ethernet.h>
50 #include <net/if.h>
51 #include <net/if_media.h>
52 #include <net/if_types.h>
53
54 #include "common/efx.h"
55
56 #include "sfxge.h"
57 #include "sfxge_rx.h"
58
59 #define SFXGE_CAP (IFCAP_VLAN_MTU | \
60 IFCAP_HWCSUM | IFCAP_VLAN_HWCSUM | IFCAP_TSO | \
61 IFCAP_JUMBO_MTU | IFCAP_LRO | \
62 IFCAP_VLAN_HWTSO | IFCAP_LINKSTATE)
63 #define SFXGE_CAP_ENABLE SFXGE_CAP
64 #define SFXGE_CAP_FIXED (IFCAP_VLAN_MTU | IFCAP_HWCSUM | IFCAP_VLAN_HWCSUM | \
65 IFCAP_JUMBO_MTU | IFCAP_LINKSTATE)
66
67 MALLOC_DEFINE(M_SFXGE, "sfxge", "Solarflare 10GigE driver");
68
69 static void
70 sfxge_reset(void *arg, int npending);
71
72 static int
73 sfxge_start(struct sfxge_softc *sc)
74 {
75 int rc;
76
77 sx_assert(&sc->softc_lock, LA_XLOCKED);
78
79 if (sc->init_state == SFXGE_STARTED)
80 return 0;
81
82 if (sc->init_state != SFXGE_REGISTERED) {
83 rc = EINVAL;
84 goto fail;
85 }
86
87 if ((rc = efx_nic_init(sc->enp)) != 0)
88 goto fail;
89
90 /* Start processing interrupts. */
91 if ((rc = sfxge_intr_start(sc)) != 0)
92 goto fail2;
93
94 /* Start processing events. */
95 if ((rc = sfxge_ev_start(sc)) != 0)
96 goto fail3;
97
98 /* Start the receiver side. */
99 if ((rc = sfxge_rx_start(sc)) != 0)
100 goto fail4;
101
102 /* Start the transmitter side. */
103 if ((rc = sfxge_tx_start(sc)) != 0)
104 goto fail5;
105
106 /* Fire up the port. */
107 if ((rc = sfxge_port_start(sc)) != 0)
108 goto fail6;
109
110 sc->init_state = SFXGE_STARTED;
111
112 /* Tell the stack we're running. */
113 sc->ifnet->if_drv_flags |= IFF_DRV_RUNNING;
114 sc->ifnet->if_drv_flags &= ~IFF_DRV_OACTIVE;
115
116 return (0);
117
118 fail6:
119 sfxge_tx_stop(sc);
120
121 fail5:
122 sfxge_rx_stop(sc);
123
124 fail4:
125 sfxge_ev_stop(sc);
126
127 fail3:
128 sfxge_intr_stop(sc);
129
130 fail2:
131 efx_nic_fini(sc->enp);
132
133 fail:
134 device_printf(sc->dev, "sfxge_start: %d\n", rc);
135
136 return (rc);
137 }
138
139 static void
140 sfxge_if_init(void *arg)
141 {
142 struct sfxge_softc *sc;
143
144 sc = (struct sfxge_softc *)arg;
145
146 sx_xlock(&sc->softc_lock);
147 (void)sfxge_start(sc);
148 sx_xunlock(&sc->softc_lock);
149 }
150
151 static void
152 sfxge_stop(struct sfxge_softc *sc)
153 {
154 sx_assert(&sc->softc_lock, LA_XLOCKED);
155
156 if (sc->init_state != SFXGE_STARTED)
157 return;
158
159 sc->init_state = SFXGE_REGISTERED;
160
161 /* Stop the port. */
162 sfxge_port_stop(sc);
163
164 /* Stop the transmitter. */
165 sfxge_tx_stop(sc);
166
167 /* Stop the receiver. */
168 sfxge_rx_stop(sc);
169
170 /* Stop processing events. */
171 sfxge_ev_stop(sc);
172
173 /* Stop processing interrupts. */
174 sfxge_intr_stop(sc);
175
176 efx_nic_fini(sc->enp);
177
178 sc->ifnet->if_drv_flags &= ~IFF_DRV_RUNNING;
179 }
180
181 static int
182 sfxge_if_ioctl(struct ifnet *ifp, unsigned long command, caddr_t data)
183 {
184 struct sfxge_softc *sc;
185 struct ifreq *ifr;
186 int error;
187
188 ifr = (struct ifreq *)data;
189 sc = ifp->if_softc;
190 error = 0;
191
192 switch (command) {
193 case SIOCSIFFLAGS:
194 sx_xlock(&sc->softc_lock);
195 if (ifp->if_flags & IFF_UP) {
196 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
197 if ((ifp->if_flags ^ sc->if_flags) &
198 (IFF_PROMISC | IFF_ALLMULTI)) {
199 sfxge_mac_filter_set(sc);
200 }
201 } else
202 sfxge_start(sc);
203 } else
204 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
205 sfxge_stop(sc);
206 sc->if_flags = ifp->if_flags;
207 sx_xunlock(&sc->softc_lock);
208 break;
209 case SIOCSIFMTU:
210 if (ifr->ifr_mtu == ifp->if_mtu) {
211 /* Nothing to do */
212 error = 0;
213 } else if (ifr->ifr_mtu > SFXGE_MAX_MTU) {
214 error = EINVAL;
215 } else if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
216 ifp->if_mtu = ifr->ifr_mtu;
217 error = 0;
218 } else {
219 /* Restart required */
220 sx_xlock(&sc->softc_lock);
221 sfxge_stop(sc);
222 ifp->if_mtu = ifr->ifr_mtu;
223 error = sfxge_start(sc);
224 sx_xunlock(&sc->softc_lock);
225 if (error) {
226 ifp->if_flags &= ~IFF_UP;
227 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
228 if_down(ifp);
229 }
230 }
231 break;
232 case SIOCADDMULTI:
233 case SIOCDELMULTI:
234 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
235 sfxge_mac_filter_set(sc);
236 break;
237 case SIOCSIFCAP:
238 sx_xlock(&sc->softc_lock);
239
240 /*
241 * The networking core already rejects attempts to
242 * enable capabilities we don't have. We still have
243 * to reject attempts to disable capabilities that we
244 * can't (yet) disable.
245 */
246 if (~ifr->ifr_reqcap & SFXGE_CAP_FIXED) {
247 error = EINVAL;
248 sx_xunlock(&sc->softc_lock);
249 break;
250 }
251
252 ifp->if_capenable = ifr->ifr_reqcap;
253 if (ifp->if_capenable & IFCAP_TXCSUM)
254 ifp->if_hwassist |= (CSUM_IP | CSUM_TCP | CSUM_UDP);
255 else
256 ifp->if_hwassist &= ~(CSUM_IP | CSUM_TCP | CSUM_UDP);
257 if (ifp->if_capenable & IFCAP_TSO)
258 ifp->if_hwassist |= CSUM_TSO;
259 else
260 ifp->if_hwassist &= ~CSUM_TSO;
261
262 sx_xunlock(&sc->softc_lock);
263 break;
264 case SIOCSIFMEDIA:
265 case SIOCGIFMEDIA:
266 error = ifmedia_ioctl(ifp, ifr, &sc->media, command);
267 break;
268 default:
269 error = ether_ioctl(ifp, command, data);
270 }
271
272 return (error);
273 }
274
275 static void
276 sfxge_ifnet_fini(struct ifnet *ifp)
277 {
278 struct sfxge_softc *sc = ifp->if_softc;
279
280 sx_xlock(&sc->softc_lock);
281 sfxge_stop(sc);
282 sx_xunlock(&sc->softc_lock);
283
284 ifmedia_removeall(&sc->media);
285 ether_ifdetach(ifp);
286 if_free(ifp);
287 }
288
289 static int
290 sfxge_ifnet_init(struct ifnet *ifp, struct sfxge_softc *sc)
291 {
292 const efx_nic_cfg_t *encp = efx_nic_cfg_get(sc->enp);
293 device_t dev;
294 int rc;
295
296 dev = sc->dev;
297 sc->ifnet = ifp;
298
299 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
300 ifp->if_init = sfxge_if_init;
301 ifp->if_softc = sc;
302 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
303 ifp->if_ioctl = sfxge_if_ioctl;
304
305 ifp->if_capabilities = SFXGE_CAP;
306 ifp->if_capenable = SFXGE_CAP_ENABLE;
307 ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_IP | CSUM_TSO;
308
309 ether_ifattach(ifp, encp->enc_mac_addr);
310
311 #ifdef SFXGE_HAVE_MQ
312 ifp->if_transmit = sfxge_if_transmit;
313 ifp->if_qflush = sfxge_if_qflush;
314 #else
315 ifp->if_start = sfxge_if_start;
316 IFQ_SET_MAXLEN(&ifp->if_snd, SFXGE_NDESCS - 1);
317 ifp->if_snd.ifq_drv_maxlen = SFXGE_NDESCS - 1;
318 IFQ_SET_READY(&ifp->if_snd);
319
320 mtx_init(&sc->tx_lock, "txq", NULL, MTX_DEF);
321 #endif
322
323 if ((rc = sfxge_port_ifmedia_init(sc)) != 0)
324 goto fail;
325
326 return 0;
327
328 fail:
329 ether_ifdetach(sc->ifnet);
330 return rc;
331 }
332
333 void
334 sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n, uint32_t *idp)
335 {
336 KASSERT(sc->buffer_table_next + n <=
337 efx_nic_cfg_get(sc->enp)->enc_buftbl_limit,
338 ("buffer table full"));
339
340 *idp = sc->buffer_table_next;
341 sc->buffer_table_next += n;
342 }
343
344 static int
345 sfxge_bar_init(struct sfxge_softc *sc)
346 {
347 efsys_bar_t *esbp = &sc->bar;
348
349 esbp->esb_rid = PCIR_BAR(EFX_MEM_BAR);
350 if ((esbp->esb_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY,
351 &esbp->esb_rid, RF_ACTIVE)) == NULL) {
352 device_printf(sc->dev, "Cannot allocate BAR region %d\n",
353 EFX_MEM_BAR);
354 return (ENXIO);
355 }
356 esbp->esb_tag = rman_get_bustag(esbp->esb_res);
357 esbp->esb_handle = rman_get_bushandle(esbp->esb_res);
358 mtx_init(&esbp->esb_lock, "sfxge_efsys_bar", NULL, MTX_DEF);
359
360 return (0);
361 }
362
363 static void
364 sfxge_bar_fini(struct sfxge_softc *sc)
365 {
366 efsys_bar_t *esbp = &sc->bar;
367
368 bus_release_resource(sc->dev, SYS_RES_MEMORY, esbp->esb_rid,
369 esbp->esb_res);
370 mtx_destroy(&esbp->esb_lock);
371 }
372
373 static int
374 sfxge_create(struct sfxge_softc *sc)
375 {
376 device_t dev;
377 efx_nic_t *enp;
378 int error;
379
380 dev = sc->dev;
381
382 sx_init(&sc->softc_lock, "sfxge_softc");
383
384 sc->stats_node = SYSCTL_ADD_NODE(
385 device_get_sysctl_ctx(dev),
386 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
387 OID_AUTO, "stats", CTLFLAG_RD, NULL, "Statistics");
388 if (!sc->stats_node) {
389 error = ENOMEM;
390 goto fail;
391 }
392
393 TASK_INIT(&sc->task_reset, 0, sfxge_reset, sc);
394
395 (void) pci_enable_busmaster(dev);
396
397 /* Initialize DMA mappings. */
398 if ((error = sfxge_dma_init(sc)) != 0)
399 goto fail;
400
401 /* Map the device registers. */
402 if ((error = sfxge_bar_init(sc)) != 0)
403 goto fail;
404
405 error = efx_family(pci_get_vendor(dev), pci_get_device(dev),
406 &sc->family);
407 KASSERT(error == 0, ("Family should be filtered by sfxge_probe()"));
408
409 /* Create the common code nic object. */
410 mtx_init(&sc->enp_lock, "sfxge_nic", NULL, MTX_DEF);
411 if ((error = efx_nic_create(sc->family, (efsys_identifier_t *)sc,
412 &sc->bar, &sc->enp_lock, &enp)) != 0)
413 goto fail3;
414 sc->enp = enp;
415
416 /* Initialize MCDI to talk to the microcontroller. */
417 if ((error = sfxge_mcdi_init(sc)) != 0)
418 goto fail4;
419
420 /* Probe the NIC and build the configuration data area. */
421 if ((error = efx_nic_probe(enp)) != 0)
422 goto fail5;
423
424 /* Initialize the NVRAM. */
425 if ((error = efx_nvram_init(enp)) != 0)
426 goto fail6;
427
428 /* Initialize the VPD. */
429 if ((error = efx_vpd_init(enp)) != 0)
430 goto fail7;
431
432 /* Reset the NIC. */
433 if ((error = efx_nic_reset(enp)) != 0)
434 goto fail8;
435
436 /* Initialize buffer table allocation. */
437 sc->buffer_table_next = 0;
438
439 /* Set up interrupts. */
440 if ((error = sfxge_intr_init(sc)) != 0)
441 goto fail8;
442
443 /* Initialize event processing state. */
444 if ((error = sfxge_ev_init(sc)) != 0)
445 goto fail11;
446
447 /* Initialize receive state. */
448 if ((error = sfxge_rx_init(sc)) != 0)
449 goto fail12;
450
451 /* Initialize transmit state. */
452 if ((error = sfxge_tx_init(sc)) != 0)
453 goto fail13;
454
455 /* Initialize port state. */
456 if ((error = sfxge_port_init(sc)) != 0)
457 goto fail14;
458
459 sc->init_state = SFXGE_INITIALIZED;
460
461 return (0);
462
463 fail14:
464 sfxge_tx_fini(sc);
465
466 fail13:
467 sfxge_rx_fini(sc);
468
469 fail12:
470 sfxge_ev_fini(sc);
471
472 fail11:
473 sfxge_intr_fini(sc);
474
475 fail8:
476 efx_vpd_fini(enp);
477
478 fail7:
479 efx_nvram_fini(enp);
480
481 fail6:
482 efx_nic_unprobe(enp);
483
484 fail5:
485 sfxge_mcdi_fini(sc);
486
487 fail4:
488 sc->enp = NULL;
489 efx_nic_destroy(enp);
490 mtx_destroy(&sc->enp_lock);
491
492 fail3:
493 sfxge_bar_fini(sc);
494 (void) pci_disable_busmaster(sc->dev);
495
496 fail:
497 sc->dev = NULL;
498 sx_destroy(&sc->softc_lock);
499 return (error);
500 }
501
502 static void
503 sfxge_destroy(struct sfxge_softc *sc)
504 {
505 efx_nic_t *enp;
506
507 /* Clean up port state. */
508 sfxge_port_fini(sc);
509
510 /* Clean up transmit state. */
511 sfxge_tx_fini(sc);
512
513 /* Clean up receive state. */
514 sfxge_rx_fini(sc);
515
516 /* Clean up event processing state. */
517 sfxge_ev_fini(sc);
518
519 /* Clean up interrupts. */
520 sfxge_intr_fini(sc);
521
522 /* Tear down common code subsystems. */
523 efx_nic_reset(sc->enp);
524 efx_vpd_fini(sc->enp);
525 efx_nvram_fini(sc->enp);
526 efx_nic_unprobe(sc->enp);
527
528 /* Tear down MCDI. */
529 sfxge_mcdi_fini(sc);
530
531 /* Destroy common code context. */
532 enp = sc->enp;
533 sc->enp = NULL;
534 efx_nic_destroy(enp);
535
536 /* Free DMA memory. */
537 sfxge_dma_fini(sc);
538
539 /* Free mapped BARs. */
540 sfxge_bar_fini(sc);
541
542 (void) pci_disable_busmaster(sc->dev);
543
544 taskqueue_drain(taskqueue_thread, &sc->task_reset);
545
546 /* Destroy the softc lock. */
547 sx_destroy(&sc->softc_lock);
548 }
549
550 static int
551 sfxge_vpd_handler(SYSCTL_HANDLER_ARGS)
552 {
553 struct sfxge_softc *sc = arg1;
554 efx_vpd_value_t value;
555 int rc;
556
557 value.evv_tag = arg2 >> 16;
558 value.evv_keyword = arg2 & 0xffff;
559 if ((rc = efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value))
560 != 0)
561 return rc;
562
563 return SYSCTL_OUT(req, value.evv_value, value.evv_length);
564 }
565
566 static void
567 sfxge_vpd_try_add(struct sfxge_softc *sc, struct sysctl_oid_list *list,
568 efx_vpd_tag_t tag, const char *keyword)
569 {
570 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
571 efx_vpd_value_t value;
572
573 /* Check whether VPD tag/keyword is present */
574 value.evv_tag = tag;
575 value.evv_keyword = EFX_VPD_KEYWORD(keyword[0], keyword[1]);
576 if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) != 0)
577 return;
578
579 SYSCTL_ADD_PROC(
580 ctx, list, OID_AUTO, keyword, CTLTYPE_STRING|CTLFLAG_RD,
581 sc, tag << 16 | EFX_VPD_KEYWORD(keyword[0], keyword[1]),
582 sfxge_vpd_handler, "A", "");
583 }
584
585 static int
586 sfxge_vpd_init(struct sfxge_softc *sc)
587 {
588 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
589 struct sysctl_oid *vpd_node;
590 struct sysctl_oid_list *vpd_list;
591 char keyword[3];
592 efx_vpd_value_t value;
593 int rc;
594
595 if ((rc = efx_vpd_size(sc->enp, &sc->vpd_size)) != 0)
596 goto fail;
597 sc->vpd_data = malloc(sc->vpd_size, M_SFXGE, M_WAITOK);
598 if ((rc = efx_vpd_read(sc->enp, sc->vpd_data, sc->vpd_size)) != 0)
599 goto fail2;
600
601 /* Copy ID (product name) into device description, and log it. */
602 value.evv_tag = EFX_VPD_ID;
603 if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) == 0) {
604 value.evv_value[value.evv_length] = 0;
605 device_set_desc_copy(sc->dev, value.evv_value);
606 device_printf(sc->dev, "%s\n", value.evv_value);
607 }
608
609 vpd_node = SYSCTL_ADD_NODE(
610 ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)),
611 OID_AUTO, "vpd", CTLFLAG_RD, NULL, "Vital Product Data");
612 vpd_list = SYSCTL_CHILDREN(vpd_node);
613
614 /* Add sysctls for all expected and any vendor-defined keywords. */
615 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "PN");
616 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "EC");
617 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "SN");
618 keyword[0] = 'V';
619 keyword[2] = 0;
620 for (keyword[1] = ''; keyword[1] <= '9'; keyword[1]++)
621 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, keyword);
622 for (keyword[1] = 'A'; keyword[1] <= 'Z'; keyword[1]++)
623 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, keyword);
624
625 return 0;
626
627 fail2:
628 free(sc->vpd_data, M_SFXGE);
629 fail:
630 return rc;
631 }
632
633 static void
634 sfxge_vpd_fini(struct sfxge_softc *sc)
635 {
636 free(sc->vpd_data, M_SFXGE);
637 }
638
639 static void
640 sfxge_reset(void *arg, int npending)
641 {
642 struct sfxge_softc *sc;
643 int rc;
644
645 (void)npending;
646
647 sc = (struct sfxge_softc *)arg;
648
649 sx_xlock(&sc->softc_lock);
650
651 if (sc->init_state != SFXGE_STARTED)
652 goto done;
653
654 sfxge_stop(sc);
655 efx_nic_reset(sc->enp);
656 if ((rc = sfxge_start(sc)) != 0)
657 device_printf(sc->dev,
658 "reset failed (%d); interface is now stopped\n",
659 rc);
660
661 done:
662 sx_xunlock(&sc->softc_lock);
663 }
664
665 void
666 sfxge_schedule_reset(struct sfxge_softc *sc)
667 {
668 taskqueue_enqueue(taskqueue_thread, &sc->task_reset);
669 }
670
671 static int
672 sfxge_attach(device_t dev)
673 {
674 struct sfxge_softc *sc;
675 struct ifnet *ifp;
676 int error;
677
678 sc = device_get_softc(dev);
679 sc->dev = dev;
680
681 /* Allocate ifnet. */
682 ifp = if_alloc(IFT_ETHER);
683 if (ifp == NULL) {
684 device_printf(dev, "Couldn't allocate ifnet\n");
685 error = ENOMEM;
686 goto fail;
687 }
688 sc->ifnet = ifp;
689
690 /* Initialize hardware. */
691 if ((error = sfxge_create(sc)) != 0)
692 goto fail2;
693
694 /* Create the ifnet for the port. */
695 if ((error = sfxge_ifnet_init(ifp, sc)) != 0)
696 goto fail3;
697
698 if ((error = sfxge_vpd_init(sc)) != 0)
699 goto fail4;
700
701 sc->init_state = SFXGE_REGISTERED;
702
703 return (0);
704
705 fail4:
706 sfxge_ifnet_fini(ifp);
707 fail3:
708 sfxge_destroy(sc);
709
710 fail2:
711 if_free(sc->ifnet);
712
713 fail:
714 return (error);
715 }
716
717 static int
718 sfxge_detach(device_t dev)
719 {
720 struct sfxge_softc *sc;
721
722 sc = device_get_softc(dev);
723
724 sfxge_vpd_fini(sc);
725
726 /* Destroy the ifnet. */
727 sfxge_ifnet_fini(sc->ifnet);
728
729 /* Tear down hardware. */
730 sfxge_destroy(sc);
731
732 return (0);
733 }
734
735 static int
736 sfxge_probe(device_t dev)
737 {
738 uint16_t pci_vendor_id;
739 uint16_t pci_device_id;
740 efx_family_t family;
741 int rc;
742
743 pci_vendor_id = pci_get_vendor(dev);
744 pci_device_id = pci_get_device(dev);
745
746 rc = efx_family(pci_vendor_id, pci_device_id, &family);
747 if (rc)
748 return ENXIO;
749
750 KASSERT(family == EFX_FAMILY_SIENA, ("impossible controller family"));
751 device_set_desc(dev, "Solarflare SFC9000 family");
752 return 0;
753 }
754
755 static device_method_t sfxge_methods[] = {
756 DEVMETHOD(device_probe, sfxge_probe),
757 DEVMETHOD(device_attach, sfxge_attach),
758 DEVMETHOD(device_detach, sfxge_detach),
759
760 DEVMETHOD_END
761 };
762
763 static devclass_t sfxge_devclass;
764
765 static driver_t sfxge_driver = {
766 "sfxge",
767 sfxge_methods,
768 sizeof(struct sfxge_softc)
769 };
770
771 DRIVER_MODULE(sfxge, pci, sfxge_driver, sfxge_devclass, 0, 0);
Cache object: 36aa6dee445dfb1ece13ed5b6d7f32b0
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