1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2016,2017 SoftIron Inc.
5 * Copyright (c) 2020 Advanced Micro Devices, Inc.
6 *
7 * This software was developed by Andrew Turner under
8 * the sponsorship of SoftIron Inc.
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 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/bus.h>
35 #include <sys/kernel.h>
36 #include <sys/lock.h>
37 #include <sys/malloc.h>
38 #include <sys/module.h>
39 #include <sys/mutex.h>
40 #include <sys/queue.h>
41 #include <sys/rman.h>
42 #include <sys/socket.h>
43 #include <sys/sockio.h>
44 #include <sys/sx.h>
45 #include <sys/taskqueue.h>
46
47 #include <net/ethernet.h>
48 #include <net/if.h>
49 #include <net/if_var.h>
50 #include <net/if_media.h>
51 #include <net/if_types.h>
52
53 #include <dev/ofw/openfirm.h>
54 #include <dev/ofw/ofw_bus.h>
55 #include <dev/ofw/ofw_bus_subr.h>
56
57 #include <machine/bus.h>
58
59 #include "miibus_if.h"
60
61 #include "xgbe.h"
62 #include "xgbe-common.h"
63
64 static device_probe_t axgbe_probe;
65 static device_attach_t axgbe_attach;
66
67 struct axgbe_softc {
68 /* Must be first */
69 struct xgbe_prv_data prv;
70
71 uint8_t mac_addr[ETHER_ADDR_LEN];
72 struct ifmedia media;
73 };
74
75 static struct ofw_compat_data compat_data[] = {
76 { "amd,xgbe-seattle-v1a", true },
77 { NULL, false }
78 };
79
80 static struct resource_spec old_phy_spec[] = {
81 { SYS_RES_MEMORY, 0, RF_ACTIVE }, /* Rx/Tx regs */
82 { SYS_RES_MEMORY, 1, RF_ACTIVE }, /* Integration regs */
83 { SYS_RES_MEMORY, 2, RF_ACTIVE }, /* Integration regs */
84 { SYS_RES_IRQ, 0, RF_ACTIVE }, /* Interrupt */
85 { -1, 0 }
86 };
87
88 static struct resource_spec old_mac_spec[] = {
89 { SYS_RES_MEMORY, 0, RF_ACTIVE }, /* MAC regs */
90 { SYS_RES_MEMORY, 1, RF_ACTIVE }, /* PCS regs */
91 { SYS_RES_IRQ, 0, RF_ACTIVE }, /* Device interrupt */
92 /* Per-channel interrupts */
93 { SYS_RES_IRQ, 1, RF_ACTIVE | RF_OPTIONAL },
94 { SYS_RES_IRQ, 2, RF_ACTIVE | RF_OPTIONAL },
95 { SYS_RES_IRQ, 3, RF_ACTIVE | RF_OPTIONAL },
96 { SYS_RES_IRQ, 4, RF_ACTIVE | RF_OPTIONAL },
97 { -1, 0 }
98 };
99
100 static struct resource_spec mac_spec[] = {
101 { SYS_RES_MEMORY, 0, RF_ACTIVE }, /* MAC regs */
102 { SYS_RES_MEMORY, 1, RF_ACTIVE }, /* PCS regs */
103 { SYS_RES_MEMORY, 2, RF_ACTIVE }, /* Rx/Tx regs */
104 { SYS_RES_MEMORY, 3, RF_ACTIVE }, /* Integration regs */
105 { SYS_RES_MEMORY, 4, RF_ACTIVE }, /* Integration regs */
106 { SYS_RES_IRQ, 0, RF_ACTIVE }, /* Device interrupt */
107 /* Per-channel and auto-negotiation interrupts */
108 { SYS_RES_IRQ, 1, RF_ACTIVE },
109 { SYS_RES_IRQ, 2, RF_ACTIVE | RF_OPTIONAL },
110 { SYS_RES_IRQ, 3, RF_ACTIVE | RF_OPTIONAL },
111 { SYS_RES_IRQ, 4, RF_ACTIVE | RF_OPTIONAL },
112 { SYS_RES_IRQ, 5, RF_ACTIVE | RF_OPTIONAL },
113 { -1, 0 }
114 };
115
116 static struct xgbe_version_data xgbe_v1 = {
117 .init_function_ptrs_phy_impl = xgbe_init_function_ptrs_phy_v1,
118 .xpcs_access = XGBE_XPCS_ACCESS_V1,
119 .tx_max_fifo_size = 81920,
120 .rx_max_fifo_size = 81920,
121 .tx_tstamp_workaround = 1,
122 };
123
124 MALLOC_DEFINE(M_AXGBE, "axgbe", "axgbe data");
125
126 static void
axgbe_init(void * p)127 axgbe_init(void *p)
128 {
129 struct axgbe_softc *sc;
130 if_t ifp;
131
132 sc = p;
133 ifp = sc->prv.netdev;
134 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING)
135 return;
136
137 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0);
138 }
139
140 static int
axgbe_ioctl(if_t ifp,unsigned long command,caddr_t data)141 axgbe_ioctl(if_t ifp, unsigned long command, caddr_t data)
142 {
143 struct axgbe_softc *sc = if_getsoftc(ifp);
144 struct ifreq *ifr = (struct ifreq *)data;
145 int error = 0;
146
147 switch(command) {
148 case SIOCSIFMTU:
149 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU_JUMBO)
150 error = EINVAL;
151 /* TODO - change it to iflib way */
152 break;
153 case SIOCSIFFLAGS:
154 error = 0;
155 break;
156 case SIOCSIFMEDIA:
157 case SIOCGIFMEDIA:
158 error = ifmedia_ioctl(ifp, ifr, &sc->media, command);
159 break;
160 default:
161 error = ether_ioctl(ifp, command, data);
162 break;
163 }
164
165 return (error);
166 }
167
168 static void
axgbe_qflush(if_t ifp)169 axgbe_qflush(if_t ifp)
170 {
171
172 if_qflush(ifp);
173 }
174
175 static int
axgbe_media_change(if_t ifp)176 axgbe_media_change(if_t ifp)
177 {
178 struct axgbe_softc *sc;
179 int cur_media;
180
181 sc = if_getsoftc(ifp);
182
183 sx_xlock(&sc->prv.an_mutex);
184 cur_media = sc->media.ifm_cur->ifm_media;
185
186 switch (IFM_SUBTYPE(cur_media)) {
187 case IFM_10G_KR:
188 sc->prv.phy.speed = SPEED_10000;
189 sc->prv.phy.autoneg = AUTONEG_DISABLE;
190 break;
191 case IFM_2500_KX:
192 sc->prv.phy.speed = SPEED_2500;
193 sc->prv.phy.autoneg = AUTONEG_DISABLE;
194 break;
195 case IFM_1000_KX:
196 sc->prv.phy.speed = SPEED_1000;
197 sc->prv.phy.autoneg = AUTONEG_DISABLE;
198 break;
199 case IFM_AUTO:
200 sc->prv.phy.autoneg = AUTONEG_ENABLE;
201 break;
202 }
203 sx_xunlock(&sc->prv.an_mutex);
204
205 return (-sc->prv.phy_if.phy_config_aneg(&sc->prv));
206 }
207
208 static void
axgbe_media_status(if_t ifp,struct ifmediareq * ifmr)209 axgbe_media_status(if_t ifp, struct ifmediareq *ifmr)
210 {
211 struct axgbe_softc *sc;
212
213 sc = if_getsoftc(ifp);
214
215 ifmr->ifm_status = IFM_AVALID;
216 if (!sc->prv.phy.link)
217 return;
218
219 ifmr->ifm_status |= IFM_ACTIVE;
220 ifmr->ifm_active = IFM_ETHER;
221
222 if (sc->prv.phy.duplex == DUPLEX_FULL)
223 ifmr->ifm_active |= IFM_FDX;
224 else
225 ifmr->ifm_active |= IFM_HDX;
226
227 switch (sc->prv.phy.speed) {
228 case SPEED_10000:
229 ifmr->ifm_active |= IFM_10G_KR;
230 break;
231 case SPEED_2500:
232 ifmr->ifm_active |= IFM_2500_KX;
233 break;
234 case SPEED_1000:
235 ifmr->ifm_active |= IFM_1000_KX;
236 break;
237 }
238 }
239
240 static uint64_t
axgbe_get_counter(if_t ifp,ift_counter c)241 axgbe_get_counter(if_t ifp, ift_counter c)
242 {
243 struct xgbe_prv_data *pdata = if_getsoftc(ifp);
244 struct xgbe_mmc_stats *pstats = &pdata->mmc_stats;
245
246 DBGPR("-->%s\n", __func__);
247
248 pdata->hw_if.read_mmc_stats(pdata);
249
250 switch(c) {
251 case IFCOUNTER_IPACKETS:
252 return (pstats->rxframecount_gb);
253 case IFCOUNTER_IERRORS:
254 return (pstats->rxframecount_gb -
255 pstats->rxbroadcastframes_g -
256 pstats->rxmulticastframes_g -
257 pstats->rxunicastframes_g);
258 case IFCOUNTER_OPACKETS:
259 return (pstats->txframecount_gb);
260 case IFCOUNTER_OERRORS:
261 return (pstats->txframecount_gb - pstats->txframecount_g);
262 case IFCOUNTER_IBYTES:
263 return (pstats->rxoctetcount_gb);
264 case IFCOUNTER_OBYTES:
265 return (pstats->txoctetcount_gb);
266 default:
267 return (if_get_counter_default(ifp, c));
268 }
269 }
270
271 static int
axgbe_probe(device_t dev)272 axgbe_probe(device_t dev)
273 {
274
275 if (!ofw_bus_status_okay(dev))
276 return (ENXIO);
277
278 if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
279 return (ENXIO);
280
281 device_set_desc(dev, "AMD 10 Gigabit Ethernet");
282 return (BUS_PROBE_DEFAULT);
283 }
284
285 static int
axgbe_get_optional_prop(device_t dev,phandle_t node,const char * name,int * data,size_t len)286 axgbe_get_optional_prop(device_t dev, phandle_t node, const char *name,
287 int *data, size_t len)
288 {
289
290 if (!OF_hasprop(node, name))
291 return (-1);
292
293 if (OF_getencprop(node, name, data, len) <= 0) {
294 device_printf(dev,"%s property is invalid\n", name);
295 return (ENXIO);
296 }
297
298 return (0);
299 }
300
301 static int
axgbe_attach(device_t dev)302 axgbe_attach(device_t dev)
303 {
304 struct axgbe_softc *sc;
305 if_t ifp;
306 pcell_t phy_handle;
307 device_t phydev;
308 phandle_t node, phy_node;
309 struct resource *mac_res[11];
310 struct resource *phy_res[4];
311 ssize_t len;
312 int error, i, j;
313
314 sc = device_get_softc(dev);
315
316 sc->prv.vdata = &xgbe_v1;
317 node = ofw_bus_get_node(dev);
318 if (OF_getencprop(node, "phy-handle", &phy_handle,
319 sizeof(phy_handle)) <= 0) {
320 phy_node = node;
321
322 if (bus_alloc_resources(dev, mac_spec, mac_res)) {
323 device_printf(dev,
324 "could not allocate phy resources\n");
325 return (ENXIO);
326 }
327
328 sc->prv.xgmac_res = mac_res[0];
329 sc->prv.xpcs_res = mac_res[1];
330 sc->prv.rxtx_res = mac_res[2];
331 sc->prv.sir0_res = mac_res[3];
332 sc->prv.sir1_res = mac_res[4];
333
334 sc->prv.dev_irq_res = mac_res[5];
335 sc->prv.per_channel_irq = OF_hasprop(node,
336 XGBE_DMA_IRQS_PROPERTY);
337 for (i = 0, j = 6; j < nitems(mac_res) - 1 &&
338 mac_res[j + 1] != NULL; i++, j++) {
339 if (sc->prv.per_channel_irq) {
340 sc->prv.chan_irq_res[i] = mac_res[j];
341 }
342 }
343
344 /* The last entry is the auto-negotiation interrupt */
345 sc->prv.an_irq_res = mac_res[j];
346 } else {
347 phydev = OF_device_from_xref(phy_handle);
348 phy_node = ofw_bus_get_node(phydev);
349
350 if (bus_alloc_resources(phydev, old_phy_spec, phy_res)) {
351 device_printf(dev,
352 "could not allocate phy resources\n");
353 return (ENXIO);
354 }
355
356 if (bus_alloc_resources(dev, old_mac_spec, mac_res)) {
357 device_printf(dev,
358 "could not allocate mac resources\n");
359 return (ENXIO);
360 }
361
362 sc->prv.rxtx_res = phy_res[0];
363 sc->prv.sir0_res = phy_res[1];
364 sc->prv.sir1_res = phy_res[2];
365 sc->prv.an_irq_res = phy_res[3];
366
367 sc->prv.xgmac_res = mac_res[0];
368 sc->prv.xpcs_res = mac_res[1];
369 sc->prv.dev_irq_res = mac_res[2];
370 sc->prv.per_channel_irq = OF_hasprop(node,
371 XGBE_DMA_IRQS_PROPERTY);
372 if (sc->prv.per_channel_irq) {
373 for (i = 0, j = 3; i < nitems(sc->prv.chan_irq_res) &&
374 mac_res[j] != NULL; i++, j++) {
375 sc->prv.chan_irq_res[i] = mac_res[j];
376 }
377 }
378 }
379
380 if ((len = OF_getproplen(node, "mac-address")) < 0) {
381 device_printf(dev, "No mac-address property\n");
382 return (EINVAL);
383 }
384
385 if (len != ETHER_ADDR_LEN)
386 return (EINVAL);
387
388 OF_getprop(node, "mac-address", sc->mac_addr, ETHER_ADDR_LEN);
389
390 sc->prv.netdev = ifp = if_alloc(IFT_ETHER);
391 sc->prv.dev = dev;
392 sc->prv.dmat = bus_get_dma_tag(dev);
393 sc->prv.phy.advertising = ADVERTISED_10000baseKR_Full |
394 ADVERTISED_1000baseKX_Full;
395
396
397 /*
398 * Read the needed properties from the phy node.
399 */
400
401 /* This is documented as optional, but Linux requires it */
402 if (OF_getencprop(phy_node, XGBE_SPEEDSET_PROPERTY, &sc->prv.speed_set,
403 sizeof(sc->prv.speed_set)) <= 0) {
404 device_printf(dev, "%s property is missing\n",
405 XGBE_SPEEDSET_PROPERTY);
406 return (EINVAL);
407 }
408
409 error = axgbe_get_optional_prop(dev, phy_node, XGBE_BLWC_PROPERTY,
410 sc->prv.serdes_blwc, sizeof(sc->prv.serdes_blwc));
411 if (error > 0) {
412 return (error);
413 } else if (error < 0) {
414 sc->prv.serdes_blwc[0] = XGBE_SPEED_1000_BLWC;
415 sc->prv.serdes_blwc[1] = XGBE_SPEED_2500_BLWC;
416 sc->prv.serdes_blwc[2] = XGBE_SPEED_10000_BLWC;
417 }
418
419 error = axgbe_get_optional_prop(dev, phy_node, XGBE_CDR_RATE_PROPERTY,
420 sc->prv.serdes_cdr_rate, sizeof(sc->prv.serdes_cdr_rate));
421 if (error > 0) {
422 return (error);
423 } else if (error < 0) {
424 sc->prv.serdes_cdr_rate[0] = XGBE_SPEED_1000_CDR;
425 sc->prv.serdes_cdr_rate[1] = XGBE_SPEED_2500_CDR;
426 sc->prv.serdes_cdr_rate[2] = XGBE_SPEED_10000_CDR;
427 }
428
429 error = axgbe_get_optional_prop(dev, phy_node, XGBE_PQ_SKEW_PROPERTY,
430 sc->prv.serdes_pq_skew, sizeof(sc->prv.serdes_pq_skew));
431 if (error > 0) {
432 return (error);
433 } else if (error < 0) {
434 sc->prv.serdes_pq_skew[0] = XGBE_SPEED_1000_PQ;
435 sc->prv.serdes_pq_skew[1] = XGBE_SPEED_2500_PQ;
436 sc->prv.serdes_pq_skew[2] = XGBE_SPEED_10000_PQ;
437 }
438
439 error = axgbe_get_optional_prop(dev, phy_node, XGBE_TX_AMP_PROPERTY,
440 sc->prv.serdes_tx_amp, sizeof(sc->prv.serdes_tx_amp));
441 if (error > 0) {
442 return (error);
443 } else if (error < 0) {
444 sc->prv.serdes_tx_amp[0] = XGBE_SPEED_1000_TXAMP;
445 sc->prv.serdes_tx_amp[1] = XGBE_SPEED_2500_TXAMP;
446 sc->prv.serdes_tx_amp[2] = XGBE_SPEED_10000_TXAMP;
447 }
448
449 error = axgbe_get_optional_prop(dev, phy_node, XGBE_DFE_CFG_PROPERTY,
450 sc->prv.serdes_dfe_tap_cfg, sizeof(sc->prv.serdes_dfe_tap_cfg));
451 if (error > 0) {
452 return (error);
453 } else if (error < 0) {
454 sc->prv.serdes_dfe_tap_cfg[0] = XGBE_SPEED_1000_DFE_TAP_CONFIG;
455 sc->prv.serdes_dfe_tap_cfg[1] = XGBE_SPEED_2500_DFE_TAP_CONFIG;
456 sc->prv.serdes_dfe_tap_cfg[2] = XGBE_SPEED_10000_DFE_TAP_CONFIG;
457 }
458
459 error = axgbe_get_optional_prop(dev, phy_node, XGBE_DFE_ENA_PROPERTY,
460 sc->prv.serdes_dfe_tap_ena, sizeof(sc->prv.serdes_dfe_tap_ena));
461 if (error > 0) {
462 return (error);
463 } else if (error < 0) {
464 sc->prv.serdes_dfe_tap_ena[0] = XGBE_SPEED_1000_DFE_TAP_ENABLE;
465 sc->prv.serdes_dfe_tap_ena[1] = XGBE_SPEED_2500_DFE_TAP_ENABLE;
466 sc->prv.serdes_dfe_tap_ena[2] = XGBE_SPEED_10000_DFE_TAP_ENABLE;
467 }
468
469 /* Check if the NIC is DMA coherent */
470 sc->prv.coherent = OF_hasprop(node, "dma-coherent");
471 if (sc->prv.coherent) {
472 sc->prv.arcr = XGBE_DMA_OS_ARCR;
473 sc->prv.awcr = XGBE_DMA_OS_AWCR;
474 } else {
475 sc->prv.arcr = XGBE_DMA_SYS_ARCR;
476 sc->prv.awcr = XGBE_DMA_SYS_AWCR;
477 }
478
479 /* Create the lock & workqueues */
480 spin_lock_init(&sc->prv.xpcs_lock);
481 sc->prv.dev_workqueue = taskqueue_create("axgbe", M_WAITOK,
482 taskqueue_thread_enqueue, &sc->prv.dev_workqueue);
483 taskqueue_start_threads(&sc->prv.dev_workqueue, 1, PI_NET,
484 "axgbe taskq");
485
486 /* Set the needed pointers */
487 xgbe_init_function_ptrs_phy(&sc->prv.phy_if);
488 xgbe_init_function_ptrs_dev(&sc->prv.hw_if);
489 xgbe_init_function_ptrs_desc(&sc->prv.desc_if);
490 sc->prv.vdata->init_function_ptrs_phy_impl(&sc->prv.phy_if);
491
492 /* Reset the hardware */
493 sc->prv.hw_if.exit(&sc->prv);
494
495 /* Read the hardware features */
496 xgbe_get_all_hw_features(&sc->prv);
497
498 /* Set default values */
499 sc->prv.tx_desc_count = XGBE_TX_DESC_CNT;
500 sc->prv.tx_sf_mode = MTL_TSF_ENABLE;
501 sc->prv.tx_threshold = MTL_TX_THRESHOLD_64;
502 sc->prv.tx_osp_mode = DMA_OSP_ENABLE;
503 sc->prv.rx_desc_count = XGBE_RX_DESC_CNT;
504 sc->prv.rx_sf_mode = MTL_RSF_DISABLE;
505 sc->prv.rx_threshold = MTL_RX_THRESHOLD_64;
506 sc->prv.pbl = DMA_PBL_128;
507 sc->prv.pause_autoneg = 1;
508 sc->prv.tx_pause = 1;
509 sc->prv.rx_pause = 1;
510 sc->prv.phy_speed = SPEED_UNKNOWN;
511 sc->prv.power_down = 0;
512
513 /* TODO: Limit to min(ncpus, hw rings) */
514 sc->prv.tx_ring_count = 1;
515 sc->prv.tx_q_count = 1;
516 sc->prv.rx_ring_count = 1;
517 sc->prv.rx_q_count = sc->prv.hw_feat.rx_q_cnt;
518
519 /* Init the PHY */
520 sc->prv.phy_if.phy_init(&sc->prv);
521
522 /* Set the coalescing */
523 xgbe_init_rx_coalesce(&sc->prv);
524 xgbe_init_tx_coalesce(&sc->prv);
525
526 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
527 if_setinitfn(ifp, axgbe_init);
528 if_setsoftc(ifp, sc);
529 if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
530 if_setioctlfn(ifp, axgbe_ioctl);
531 /* TODO - change it to iflib way */
532 if_setqflushfn(ifp, axgbe_qflush);
533 if_setgetcounterfn(ifp, axgbe_get_counter);
534
535 /* TODO: Support HW offload */
536 if_setcapabilities(ifp, 0);
537 if_setcapenable(ifp, 0);
538 if_sethwassist(ifp, 0);
539
540 ether_ifattach(ifp, sc->mac_addr);
541
542 ifmedia_init(&sc->media, IFM_IMASK, axgbe_media_change,
543 axgbe_media_status);
544 #ifdef notyet
545 ifmedia_add(&sc->media, IFM_ETHER | IFM_10G_KR, 0, NULL);
546 #endif
547 ifmedia_add(&sc->media, IFM_ETHER | IFM_1000_KX, 0, NULL);
548 ifmedia_add(&sc->media, IFM_ETHER | IFM_AUTO, 0, NULL);
549 ifmedia_set(&sc->media, IFM_ETHER | IFM_AUTO);
550
551 set_bit(XGBE_DOWN, &sc->prv.dev_state);
552
553 /* TODO - change it to iflib way */
554 return (0);
555 }
556
557 static device_method_t axgbe_methods[] = {
558 /* Device interface */
559 DEVMETHOD(device_probe, axgbe_probe),
560 DEVMETHOD(device_attach, axgbe_attach),
561
562 { 0, 0 }
563 };
564
565 DEFINE_CLASS_0(axgbe, axgbe_driver, axgbe_methods,
566 sizeof(struct axgbe_softc));
567 DRIVER_MODULE(axa, simplebus, axgbe_driver, 0, 0);
568
569
570 static struct ofw_compat_data phy_compat_data[] = {
571 { "amd,xgbe-phy-seattle-v1a", true },
572 { NULL, false }
573 };
574
575 static int
axgbephy_probe(device_t dev)576 axgbephy_probe(device_t dev)
577 {
578
579 if (!ofw_bus_status_okay(dev))
580 return (ENXIO);
581
582 if (!ofw_bus_search_compatible(dev, phy_compat_data)->ocd_data)
583 return (ENXIO);
584
585 device_set_desc(dev, "AMD 10 Gigabit Ethernet");
586 return (BUS_PROBE_DEFAULT);
587 }
588
589 static int
axgbephy_attach(device_t dev)590 axgbephy_attach(device_t dev)
591 {
592 phandle_t node;
593
594 node = ofw_bus_get_node(dev);
595 OF_device_register_xref(OF_xref_from_node(node), dev);
596
597 return (0);
598 }
599
600 static device_method_t axgbephy_methods[] = {
601 /* Device interface */
602 DEVMETHOD(device_probe, axgbephy_probe),
603 DEVMETHOD(device_attach, axgbephy_attach),
604
605 { 0, 0 }
606 };
607
608 DEFINE_CLASS_0(axgbephy, axgbephy_driver, axgbephy_methods, 0);
609 EARLY_DRIVER_MODULE(axgbephy, simplebus, axgbephy_driver,
610 0, 0, BUS_PASS_RESOURCE + BUS_PASS_ORDER_MIDDLE);
611