xref: /titanic_52/usr/src/uts/common/io/e1000g/e1000g_main.c (revision bced1f3360e021f30656c586a265fdfd0cab790f)
1 /*
2  * This file is provided under a CDDLv1 license.  When using or
3  * redistributing this file, you may do so under this license.
4  * In redistributing this file this license must be included
5  * and no other modification of this header file is permitted.
6  *
7  * CDDL LICENSE SUMMARY
8  *
9  * Copyright(c) 1999 - 2008 Intel Corporation. All rights reserved.
10  *
11  * The contents of this file are subject to the terms of Version
12  * 1.0 of the Common Development and Distribution License (the "License").
13  *
14  * You should have received a copy of the License with this software.
15  * You can obtain a copy of the License at
16  *	http://www.opensolaris.org/os/licensing.
17  * See the License for the specific language governing permissions
18  * and limitations under the License.
19  */
20 
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 /*
29  * **********************************************************************
30  *									*
31  * Module Name:								*
32  *   e1000g_main.c							*
33  *									*
34  * Abstract:								*
35  *   This file contains the interface routines for the solaris OS.	*
36  *   It has all DDI entry point routines and GLD entry point routines.	*
37  *									*
38  *   This file also contains routines that take care of initialization	*
39  *   uninit routine and interrupt routine.				*
40  *									*
41  * **********************************************************************
42  */
43 
44 #include <sys/dlpi.h>
45 #include <sys/mac.h>
46 #include "e1000g_sw.h"
47 #include "e1000g_debug.h"
48 
49 static char ident[] = "Intel PRO/1000 Ethernet 5.2.10";
50 static char e1000g_string[] = "Intel(R) PRO/1000 Network Connection";
51 static char e1000g_version[] = "Driver Ver. 5.2.10";
52 
53 /*
54  * Proto types for DDI entry points
55  */
56 static int e1000g_attach(dev_info_t *, ddi_attach_cmd_t);
57 static int e1000g_detach(dev_info_t *, ddi_detach_cmd_t);
58 
59 /*
60  * init and intr routines prototype
61  */
62 static int e1000g_resume(dev_info_t *);
63 static int e1000g_suspend(dev_info_t *);
64 static uint_t e1000g_intr_pciexpress(caddr_t);
65 static uint_t e1000g_intr(caddr_t);
66 static void e1000g_intr_work(struct e1000g *, uint32_t);
67 #pragma inline(e1000g_intr_work)
68 static uint32_t e1000g_get_itr(uint32_t, uint32_t, uint32_t);
69 #pragma inline(e1000g_get_itr)
70 static int e1000g_init(struct e1000g *);
71 static int e1000g_start(struct e1000g *, boolean_t);
72 static void e1000g_stop(struct e1000g *, boolean_t);
73 static int e1000g_m_start(void *);
74 static void e1000g_m_stop(void *);
75 static int e1000g_m_promisc(void *, boolean_t);
76 static boolean_t e1000g_m_getcapab(void *, mac_capab_t, void *);
77 static int e1000g_m_unicst(void *, const uint8_t *);
78 static int e1000g_m_unicst_add(void *, mac_multi_addr_t *);
79 static int e1000g_m_unicst_remove(void *, mac_addr_slot_t);
80 static int e1000g_m_unicst_modify(void *, mac_multi_addr_t *);
81 static int e1000g_m_unicst_get(void *, mac_multi_addr_t *);
82 static int e1000g_m_multicst(void *, boolean_t, const uint8_t *);
83 static void e1000g_m_ioctl(void *, queue_t *, mblk_t *);
84 static int e1000g_m_setprop(void *, const char *, mac_prop_id_t,
85     uint_t, const void *);
86 static int e1000g_m_getprop(void *, const char *, mac_prop_id_t,
87     uint_t, uint_t, void *);
88 static int e1000g_set_priv_prop(struct e1000g *, const char *, uint_t,
89     const void *);
90 static int e1000g_get_priv_prop(struct e1000g *, const char *, uint_t,
91     uint_t, void *);
92 static void e1000g_init_locks(struct e1000g *);
93 static void e1000g_destroy_locks(struct e1000g *);
94 static int e1000g_identify_hardware(struct e1000g *);
95 static int e1000g_regs_map(struct e1000g *);
96 static int e1000g_set_driver_params(struct e1000g *);
97 static void e1000g_set_bufsize(struct e1000g *);
98 static int e1000g_register_mac(struct e1000g *);
99 static boolean_t e1000g_rx_drain(struct e1000g *);
100 static boolean_t e1000g_tx_drain(struct e1000g *);
101 static void e1000g_init_unicst(struct e1000g *);
102 static int e1000g_unicst_set(struct e1000g *, const uint8_t *, mac_addr_slot_t);
103 
104 /*
105  * Local routines
106  */
107 static void e1000g_tx_clean(struct e1000g *);
108 static void e1000g_rx_clean(struct e1000g *);
109 static void e1000g_link_timer(void *);
110 static void e1000g_local_timer(void *);
111 static boolean_t e1000g_link_check(struct e1000g *);
112 static boolean_t e1000g_stall_check(struct e1000g *);
113 static void e1000g_smartspeed(struct e1000g *);
114 static void e1000g_get_conf(struct e1000g *);
115 static int e1000g_get_prop(struct e1000g *, char *, int, int, int);
116 static void enable_watchdog_timer(struct e1000g *);
117 static void disable_watchdog_timer(struct e1000g *);
118 static void start_watchdog_timer(struct e1000g *);
119 static void restart_watchdog_timer(struct e1000g *);
120 static void stop_watchdog_timer(struct e1000g *);
121 static void stop_link_timer(struct e1000g *);
122 static void stop_82547_timer(e1000g_tx_ring_t *);
123 static void e1000g_force_speed_duplex(struct e1000g *);
124 static void e1000g_get_max_frame_size(struct e1000g *);
125 static boolean_t is_valid_mac_addr(uint8_t *);
126 static void e1000g_unattach(dev_info_t *, struct e1000g *);
127 #ifdef E1000G_DEBUG
128 static void e1000g_ioc_peek_reg(struct e1000g *, e1000g_peekpoke_t *);
129 static void e1000g_ioc_poke_reg(struct e1000g *, e1000g_peekpoke_t *);
130 static void e1000g_ioc_peek_mem(struct e1000g *, e1000g_peekpoke_t *);
131 static void e1000g_ioc_poke_mem(struct e1000g *, e1000g_peekpoke_t *);
132 static enum ioc_reply e1000g_pp_ioctl(struct e1000g *,
133     struct iocblk *, mblk_t *);
134 #endif
135 static enum ioc_reply e1000g_loopback_ioctl(struct e1000g *,
136     struct iocblk *, mblk_t *);
137 static boolean_t e1000g_set_loopback_mode(struct e1000g *, uint32_t);
138 static void e1000g_set_internal_loopback(struct e1000g *);
139 static void e1000g_set_external_loopback_1000(struct e1000g *);
140 static void e1000g_set_external_loopback_100(struct e1000g *);
141 static void e1000g_set_external_loopback_10(struct e1000g *);
142 static int e1000g_add_intrs(struct e1000g *);
143 static int e1000g_intr_add(struct e1000g *, int);
144 static int e1000g_rem_intrs(struct e1000g *);
145 static int e1000g_enable_intrs(struct e1000g *);
146 static int e1000g_disable_intrs(struct e1000g *);
147 static boolean_t e1000g_link_up(struct e1000g *);
148 #ifdef __sparc
149 static boolean_t e1000g_find_mac_address(struct e1000g *);
150 #endif
151 static void e1000g_get_phy_state(struct e1000g *);
152 static void e1000g_free_priv_devi_node(struct e1000g *, boolean_t);
153 static int e1000g_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err,
154     const void *impl_data);
155 static void e1000g_fm_init(struct e1000g *Adapter);
156 static void e1000g_fm_fini(struct e1000g *Adapter);
157 static int e1000g_get_def_val(struct e1000g *, mac_prop_id_t, uint_t, void *);
158 static void e1000g_param_sync(struct e1000g *);
159 
160 mac_priv_prop_t e1000g_priv_props[] = {
161 	{"_tx_bcopy_threshold", MAC_PROP_PERM_RW},
162 	{"_tx_interrupt_enable", MAC_PROP_PERM_RW},
163 	{"_tx_intr_delay", MAC_PROP_PERM_RW},
164 	{"_tx_intr_abs_delay", MAC_PROP_PERM_RW},
165 	{"_rx_bcopy_threshold", MAC_PROP_PERM_RW},
166 	{"_max_num_rcv_packets", MAC_PROP_PERM_RW},
167 	{"_rx_intr_delay", MAC_PROP_PERM_RW},
168 	{"_rx_intr_abs_delay", MAC_PROP_PERM_RW},
169 	{"_intr_throttling_rate", MAC_PROP_PERM_RW},
170 	{"_intr_adaptive", MAC_PROP_PERM_RW},
171 	{"_tx_recycle_thresh", MAC_PROP_PERM_RW},
172 	{"_adv_pause_cap", MAC_PROP_PERM_READ},
173 	{"_adv_asym_pause_cap", MAC_PROP_PERM_READ},
174 	{"_tx_recycle_num", MAC_PROP_PERM_RW}
175 };
176 #define	E1000G_MAX_PRIV_PROPS	\
177 	(sizeof (e1000g_priv_props)/sizeof (mac_priv_prop_t))
178 
179 
180 static struct cb_ops cb_ws_ops = {
181 	nulldev,		/* cb_open */
182 	nulldev,		/* cb_close */
183 	nodev,			/* cb_strategy */
184 	nodev,			/* cb_print */
185 	nodev,			/* cb_dump */
186 	nodev,			/* cb_read */
187 	nodev,			/* cb_write */
188 	nodev,			/* cb_ioctl */
189 	nodev,			/* cb_devmap */
190 	nodev,			/* cb_mmap */
191 	nodev,			/* cb_segmap */
192 	nochpoll,		/* cb_chpoll */
193 	ddi_prop_op,		/* cb_prop_op */
194 	NULL,			/* cb_stream */
195 	D_MP | D_HOTPLUG,	/* cb_flag */
196 	CB_REV,			/* cb_rev */
197 	nodev,			/* cb_aread */
198 	nodev			/* cb_awrite */
199 };
200 
201 static struct dev_ops ws_ops = {
202 	DEVO_REV,		/* devo_rev */
203 	0,			/* devo_refcnt */
204 	NULL,			/* devo_getinfo */
205 	nulldev,		/* devo_identify */
206 	nulldev,		/* devo_probe */
207 	e1000g_attach,		/* devo_attach */
208 	e1000g_detach,		/* devo_detach */
209 	nodev,			/* devo_reset */
210 	&cb_ws_ops,		/* devo_cb_ops */
211 	NULL,			/* devo_bus_ops */
212 	ddi_power		/* devo_power */
213 };
214 
215 static struct modldrv modldrv = {
216 	&mod_driverops,		/* Type of module.  This one is a driver */
217 	ident,			/* Discription string */
218 	&ws_ops,		/* driver ops */
219 };
220 
221 static struct modlinkage modlinkage = {
222 	MODREV_1, &modldrv, NULL
223 };
224 
225 /* Access attributes for register mapping */
226 static ddi_device_acc_attr_t e1000g_regs_acc_attr = {
227 	DDI_DEVICE_ATTR_V0,
228 	DDI_STRUCTURE_LE_ACC,
229 	DDI_STRICTORDER_ACC,
230 	DDI_FLAGERR_ACC
231 };
232 
233 #define	E1000G_M_CALLBACK_FLAGS \
234 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP)
235 
236 static mac_callbacks_t e1000g_m_callbacks = {
237 	E1000G_M_CALLBACK_FLAGS,
238 	e1000g_m_stat,
239 	e1000g_m_start,
240 	e1000g_m_stop,
241 	e1000g_m_promisc,
242 	e1000g_m_multicst,
243 	e1000g_m_unicst,
244 	e1000g_m_tx,
245 	NULL,
246 	e1000g_m_ioctl,
247 	e1000g_m_getcapab,
248 	NULL,
249 	NULL,
250 	e1000g_m_setprop,
251 	e1000g_m_getprop
252 };
253 
254 /*
255  * Global variables
256  */
257 uint32_t e1000g_mblks_pending = 0;
258 /*
259  * Workaround for Dynamic Reconfiguration support, for x86 platform only.
260  * Here we maintain a private dev_info list if e1000g_force_detach is
261  * enabled. If we force the driver to detach while there are still some
262  * rx buffers retained in the upper layer, we have to keep a copy of the
263  * dev_info. In some cases (Dynamic Reconfiguration), the dev_info data
264  * structure will be freed after the driver is detached. However when we
265  * finally free those rx buffers released by the upper layer, we need to
266  * refer to the dev_info to free the dma buffers. So we save a copy of
267  * the dev_info for this purpose. On x86 platform, we assume this copy
268  * of dev_info is always valid, but on SPARC platform, it could be invalid
269  * after the system board level DR operation. For this reason, the global
270  * variable e1000g_force_detach must be B_FALSE on SPARC platform.
271  */
272 #ifdef __sparc
273 boolean_t e1000g_force_detach = B_FALSE;
274 #else
275 boolean_t e1000g_force_detach = B_TRUE;
276 #endif
277 private_devi_list_t *e1000g_private_devi_list = NULL;
278 
279 /*
280  * The rwlock is defined to protect the whole processing of rx recycling
281  * and the rx packets release in detach processing to make them mutually
282  * exclusive.
283  * The rx recycling processes different rx packets in different threads,
284  * so it will be protected with RW_READER and it won't block any other rx
285  * recycling threads.
286  * While the detach processing will be protected with RW_WRITER to make
287  * it mutually exclusive with the rx recycling.
288  */
289 krwlock_t e1000g_rx_detach_lock;
290 /*
291  * The rwlock e1000g_dma_type_lock is defined to protect the global flag
292  * e1000g_dma_type. For SPARC, the initial value of the flag is "USE_DVMA".
293  * If there are many e1000g instances, the system may run out of DVMA
294  * resources during the initialization of the instances, then the flag will
295  * be changed to "USE_DMA". Because different e1000g instances are initialized
296  * in parallel, we need to use this lock to protect the flag.
297  */
298 krwlock_t e1000g_dma_type_lock;
299 
300 
301 /*
302  * Loadable module configuration entry points for the driver
303  */
304 
305 /*
306  * _init - module initialization
307  */
308 int
309 _init(void)
310 {
311 	int status;
312 
313 	mac_init_ops(&ws_ops, WSNAME);
314 	status = mod_install(&modlinkage);
315 	if (status != DDI_SUCCESS)
316 		mac_fini_ops(&ws_ops);
317 	else {
318 		rw_init(&e1000g_rx_detach_lock, NULL, RW_DRIVER, NULL);
319 		rw_init(&e1000g_dma_type_lock, NULL, RW_DRIVER, NULL);
320 	}
321 
322 	return (status);
323 }
324 
325 /*
326  * _fini - module finalization
327  */
328 int
329 _fini(void)
330 {
331 	int status;
332 
333 	rw_enter(&e1000g_rx_detach_lock, RW_READER);
334 	if (e1000g_mblks_pending != 0) {
335 		rw_exit(&e1000g_rx_detach_lock);
336 		return (EBUSY);
337 	}
338 	rw_exit(&e1000g_rx_detach_lock);
339 
340 	status = mod_remove(&modlinkage);
341 	if (status == DDI_SUCCESS) {
342 		mac_fini_ops(&ws_ops);
343 
344 		if (e1000g_force_detach) {
345 			private_devi_list_t *devi_node;
346 
347 			rw_enter(&e1000g_rx_detach_lock, RW_WRITER);
348 			while (e1000g_private_devi_list != NULL) {
349 				devi_node = e1000g_private_devi_list;
350 				e1000g_private_devi_list =
351 				    e1000g_private_devi_list->next;
352 
353 				kmem_free(devi_node->priv_dip,
354 				    sizeof (struct dev_info));
355 				kmem_free(devi_node,
356 				    sizeof (private_devi_list_t));
357 			}
358 			rw_exit(&e1000g_rx_detach_lock);
359 		}
360 
361 		rw_destroy(&e1000g_rx_detach_lock);
362 		rw_destroy(&e1000g_dma_type_lock);
363 	}
364 
365 	return (status);
366 }
367 
368 /*
369  * _info - module information
370  */
371 int
372 _info(struct modinfo *modinfop)
373 {
374 	return (mod_info(&modlinkage, modinfop));
375 }
376 
377 /*
378  * e1000g_attach - driver attach
379  *
380  * This function is the device-specific initialization entry
381  * point. This entry point is required and must be written.
382  * The DDI_ATTACH command must be provided in the attach entry
383  * point. When attach() is called with cmd set to DDI_ATTACH,
384  * all normal kernel services (such as kmem_alloc(9F)) are
385  * available for use by the driver.
386  *
387  * The attach() function will be called once for each instance
388  * of  the  device  on  the  system with cmd set to DDI_ATTACH.
389  * Until attach() succeeds, the only driver entry points which
390  * may be called are open(9E) and getinfo(9E).
391  */
392 static int
393 e1000g_attach(dev_info_t *devinfo, ddi_attach_cmd_t cmd)
394 {
395 	struct e1000g *Adapter;
396 	struct e1000_hw *hw;
397 	struct e1000g_osdep *osdep;
398 	int instance;
399 
400 	switch (cmd) {
401 	default:
402 		e1000g_log(NULL, CE_WARN,
403 		    "Unsupported command send to e1000g_attach... ");
404 		return (DDI_FAILURE);
405 
406 	case DDI_RESUME:
407 		return (e1000g_resume(devinfo));
408 
409 	case DDI_ATTACH:
410 		break;
411 	}
412 
413 	/*
414 	 * get device instance number
415 	 */
416 	instance = ddi_get_instance(devinfo);
417 
418 	/*
419 	 * Allocate soft data structure
420 	 */
421 	Adapter =
422 	    (struct e1000g *)kmem_zalloc(sizeof (*Adapter), KM_SLEEP);
423 
424 	Adapter->dip = devinfo;
425 	Adapter->instance = instance;
426 	Adapter->tx_ring->adapter = Adapter;
427 	Adapter->rx_ring->adapter = Adapter;
428 
429 	hw = &Adapter->shared;
430 	osdep = &Adapter->osdep;
431 	hw->back = osdep;
432 	osdep->adapter = Adapter;
433 
434 	ddi_set_driver_private(devinfo, (caddr_t)Adapter);
435 
436 	/*
437 	 * Initialize for fma support
438 	 */
439 	Adapter->fm_capabilities = e1000g_get_prop(Adapter, "fm-capable",
440 	    0, 0x0f,
441 	    DDI_FM_EREPORT_CAPABLE | DDI_FM_ACCCHK_CAPABLE |
442 	    DDI_FM_DMACHK_CAPABLE | DDI_FM_ERRCB_CAPABLE);
443 	e1000g_fm_init(Adapter);
444 	Adapter->attach_progress |= ATTACH_PROGRESS_FMINIT;
445 
446 	/*
447 	 * PCI Configure
448 	 */
449 	if (pci_config_setup(devinfo, &osdep->cfg_handle) != DDI_SUCCESS) {
450 		e1000g_log(Adapter, CE_WARN, "PCI configuration failed");
451 		goto attach_fail;
452 	}
453 	Adapter->attach_progress |= ATTACH_PROGRESS_PCI_CONFIG;
454 
455 	/*
456 	 * Setup hardware
457 	 */
458 	if (e1000g_identify_hardware(Adapter) != DDI_SUCCESS) {
459 		e1000g_log(Adapter, CE_WARN, "Identify hardware failed");
460 		goto attach_fail;
461 	}
462 
463 	/*
464 	 * Map in the device registers.
465 	 */
466 	if (e1000g_regs_map(Adapter) != DDI_SUCCESS) {
467 		e1000g_log(Adapter, CE_WARN, "Mapping registers failed");
468 		goto attach_fail;
469 	}
470 	Adapter->attach_progress |= ATTACH_PROGRESS_REGS_MAP;
471 
472 	/*
473 	 * Initialize driver parameters
474 	 */
475 	if (e1000g_set_driver_params(Adapter) != DDI_SUCCESS) {
476 		goto attach_fail;
477 	}
478 	Adapter->attach_progress |= ATTACH_PROGRESS_SETUP;
479 
480 	if (e1000g_check_acc_handle(Adapter->osdep.cfg_handle) != DDI_FM_OK) {
481 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_LOST);
482 		goto attach_fail;
483 	}
484 
485 	/*
486 	 * Initialize interrupts
487 	 */
488 	if (e1000g_add_intrs(Adapter) != DDI_SUCCESS) {
489 		e1000g_log(Adapter, CE_WARN, "Add interrupts failed");
490 		goto attach_fail;
491 	}
492 	Adapter->attach_progress |= ATTACH_PROGRESS_ADD_INTR;
493 
494 	/*
495 	 * Initialize mutex's for this device.
496 	 * Do this before enabling the interrupt handler and
497 	 * register the softint to avoid the condition where
498 	 * interrupt handler can try using uninitialized mutex
499 	 */
500 	e1000g_init_locks(Adapter);
501 	Adapter->attach_progress |= ATTACH_PROGRESS_LOCKS;
502 
503 	/*
504 	 * Initialize Driver Counters
505 	 */
506 	if (e1000g_init_stats(Adapter) != DDI_SUCCESS) {
507 		e1000g_log(Adapter, CE_WARN, "Init stats failed");
508 		goto attach_fail;
509 	}
510 	Adapter->attach_progress |= ATTACH_PROGRESS_KSTATS;
511 
512 	/*
513 	 * Initialize chip hardware and software structures
514 	 */
515 	if (e1000g_init(Adapter) != DDI_SUCCESS) {
516 		e1000g_log(Adapter, CE_WARN, "Adapter initialization failed");
517 		goto attach_fail;
518 	}
519 	Adapter->attach_progress |= ATTACH_PROGRESS_INIT;
520 
521 	/*
522 	 * Register the driver to the MAC
523 	 */
524 	if (e1000g_register_mac(Adapter) != DDI_SUCCESS) {
525 		e1000g_log(Adapter, CE_WARN, "Register MAC failed");
526 		goto attach_fail;
527 	}
528 	Adapter->attach_progress |= ATTACH_PROGRESS_MAC;
529 
530 	/*
531 	 * Now that mutex locks are initialized, and the chip is also
532 	 * initialized, enable interrupts.
533 	 */
534 	if (e1000g_enable_intrs(Adapter) != DDI_SUCCESS) {
535 		e1000g_log(Adapter, CE_WARN, "Enable DDI interrupts failed");
536 		goto attach_fail;
537 	}
538 	Adapter->attach_progress |= ATTACH_PROGRESS_ENABLE_INTR;
539 
540 	/*
541 	 * If e1000g_force_detach is enabled, in global private dip list,
542 	 * we will create a new entry, which maintains the priv_dip for DR
543 	 * supports after driver detached.
544 	 */
545 	if (e1000g_force_detach) {
546 		private_devi_list_t *devi_node;
547 
548 		Adapter->priv_dip =
549 		    kmem_zalloc(sizeof (struct dev_info), KM_SLEEP);
550 		bcopy(DEVI(devinfo), DEVI(Adapter->priv_dip),
551 		    sizeof (struct dev_info));
552 
553 		devi_node =
554 		    kmem_zalloc(sizeof (private_devi_list_t), KM_SLEEP);
555 
556 		rw_enter(&e1000g_rx_detach_lock, RW_WRITER);
557 		devi_node->priv_dip = Adapter->priv_dip;
558 		devi_node->flag = E1000G_PRIV_DEVI_ATTACH;
559 		devi_node->next = e1000g_private_devi_list;
560 		e1000g_private_devi_list = devi_node;
561 		rw_exit(&e1000g_rx_detach_lock);
562 	}
563 
564 	cmn_err(CE_CONT, "!%s, %s\n", e1000g_string, e1000g_version);
565 
566 	return (DDI_SUCCESS);
567 
568 attach_fail:
569 	e1000g_unattach(devinfo, Adapter);
570 	return (DDI_FAILURE);
571 }
572 
573 static int
574 e1000g_register_mac(struct e1000g *Adapter)
575 {
576 	struct e1000_hw *hw = &Adapter->shared;
577 	mac_register_t *mac;
578 	int err;
579 
580 	if ((mac = mac_alloc(MAC_VERSION)) == NULL)
581 		return (DDI_FAILURE);
582 
583 	mac->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
584 	mac->m_driver = Adapter;
585 	mac->m_dip = Adapter->dip;
586 	mac->m_src_addr = hw->mac.addr;
587 	mac->m_callbacks = &e1000g_m_callbacks;
588 	mac->m_min_sdu = 0;
589 	mac->m_max_sdu = Adapter->default_mtu;
590 	mac->m_margin = VLAN_TAGSZ;
591 	mac->m_priv_props = e1000g_priv_props;
592 	mac->m_priv_prop_count = E1000G_MAX_PRIV_PROPS;
593 
594 	err = mac_register(mac, &Adapter->mh);
595 	mac_free(mac);
596 
597 	return (err == 0 ? DDI_SUCCESS : DDI_FAILURE);
598 }
599 
600 static int
601 e1000g_identify_hardware(struct e1000g *Adapter)
602 {
603 	struct e1000_hw *hw = &Adapter->shared;
604 	struct e1000g_osdep *osdep = &Adapter->osdep;
605 
606 	/* Get the device id */
607 	hw->vendor_id =
608 	    pci_config_get16(osdep->cfg_handle, PCI_CONF_VENID);
609 	hw->device_id =
610 	    pci_config_get16(osdep->cfg_handle, PCI_CONF_DEVID);
611 	hw->revision_id =
612 	    pci_config_get8(osdep->cfg_handle, PCI_CONF_REVID);
613 	hw->subsystem_device_id =
614 	    pci_config_get16(osdep->cfg_handle, PCI_CONF_SUBSYSID);
615 	hw->subsystem_vendor_id =
616 	    pci_config_get16(osdep->cfg_handle, PCI_CONF_SUBVENID);
617 
618 	if (e1000_set_mac_type(hw) != E1000_SUCCESS) {
619 		E1000G_DEBUGLOG_0(Adapter, E1000G_INFO_LEVEL,
620 		    "MAC type could not be set properly.");
621 		return (DDI_FAILURE);
622 	}
623 
624 	return (DDI_SUCCESS);
625 }
626 
627 static int
628 e1000g_regs_map(struct e1000g *Adapter)
629 {
630 	dev_info_t *devinfo = Adapter->dip;
631 	struct e1000_hw *hw = &Adapter->shared;
632 	struct e1000g_osdep *osdep = &Adapter->osdep;
633 	off_t mem_size;
634 
635 	/*
636 	 * first get the size of device register to be mapped. The
637 	 * second parameter is the register we are interested. I our
638 	 * wiseman 0 is for config registers and 1 is for memory mapped
639 	 * registers Mem size should have memory mapped region size
640 	 */
641 	if (ddi_dev_regsize(devinfo, 1, &mem_size) != DDI_SUCCESS) {
642 		E1000G_DEBUGLOG_0(Adapter, CE_WARN,
643 		    "ddi_dev_regsize for registers failed");
644 		return (DDI_FAILURE);
645 	}
646 
647 	if ((ddi_regs_map_setup(devinfo, 1, /* register of interest */
648 	    (caddr_t *)&hw->hw_addr, 0, mem_size, &e1000g_regs_acc_attr,
649 	    &osdep->reg_handle)) != DDI_SUCCESS) {
650 		E1000G_DEBUGLOG_0(Adapter, CE_WARN,
651 		    "ddi_regs_map_setup for registers failed");
652 		goto regs_map_fail;
653 	}
654 
655 	/* ICH needs to map flash memory */
656 	if (hw->mac.type == e1000_ich8lan || hw->mac.type == e1000_ich9lan) {
657 		/* get flash size */
658 		if (ddi_dev_regsize(devinfo, ICH_FLASH_REG_SET,
659 		    &mem_size) != DDI_SUCCESS) {
660 			E1000G_DEBUGLOG_0(Adapter, CE_WARN,
661 			    "ddi_dev_regsize for ICH flash failed");
662 			goto regs_map_fail;
663 		}
664 
665 		/* map flash in */
666 		if (ddi_regs_map_setup(devinfo, ICH_FLASH_REG_SET,
667 		    (caddr_t *)&hw->flash_address, 0,
668 		    mem_size, &e1000g_regs_acc_attr,
669 		    &osdep->ich_flash_handle) != DDI_SUCCESS) {
670 			E1000G_DEBUGLOG_0(Adapter, CE_WARN,
671 			    "ddi_regs_map_setup for ICH flash failed");
672 			goto regs_map_fail;
673 		}
674 	}
675 
676 	return (DDI_SUCCESS);
677 
678 regs_map_fail:
679 	if (osdep->reg_handle != NULL)
680 		ddi_regs_map_free(&osdep->reg_handle);
681 
682 	return (DDI_FAILURE);
683 }
684 
685 static int
686 e1000g_set_driver_params(struct e1000g *Adapter)
687 {
688 	struct e1000_hw *hw;
689 	uint32_t mem_bar, io_bar, bar64;
690 
691 	hw = &Adapter->shared;
692 
693 	/* Set MAC type and initialize hardware functions */
694 	if (e1000_setup_init_funcs(hw, B_TRUE) != E1000_SUCCESS) {
695 		E1000G_DEBUGLOG_0(Adapter, CE_WARN,
696 		    "Could not setup hardware functions");
697 		return (DDI_FAILURE);
698 	}
699 
700 	/* Get bus information */
701 	if (e1000_get_bus_info(hw) != E1000_SUCCESS) {
702 		E1000G_DEBUGLOG_0(Adapter, CE_WARN,
703 		    "Could not get bus information");
704 		return (DDI_FAILURE);
705 	}
706 
707 	/* get mem_base addr */
708 	mem_bar = pci_config_get32(Adapter->osdep.cfg_handle, PCI_CONF_BASE0);
709 	bar64 = mem_bar & PCI_BASE_TYPE_ALL;
710 
711 	/* get io_base addr */
712 	if (hw->mac.type >= e1000_82544) {
713 		if (bar64) {
714 			/* IO BAR is different for 64 bit BAR mode */
715 			io_bar = pci_config_get32(Adapter->osdep.cfg_handle,
716 			    PCI_CONF_BASE4);
717 		} else {
718 			/* normal 32-bit BAR mode */
719 			io_bar = pci_config_get32(Adapter->osdep.cfg_handle,
720 			    PCI_CONF_BASE2);
721 		}
722 		hw->io_base = io_bar & PCI_BASE_IO_ADDR_M;
723 	} else {
724 		/* no I/O access for adapters prior to 82544 */
725 		hw->io_base = 0x0;
726 	}
727 
728 	e1000_read_pci_cfg(hw, PCI_COMMAND_REGISTER, &hw->bus.pci_cmd_word);
729 
730 	hw->mac.autoneg_failed = B_TRUE;
731 
732 	/* Set the autoneg_wait_to_complete flag to B_FALSE */
733 	hw->phy.autoneg_wait_to_complete = B_FALSE;
734 
735 	/* Adaptive IFS related changes */
736 	hw->mac.adaptive_ifs = B_TRUE;
737 
738 	/* Enable phy init script for IGP phy of 82541/82547 */
739 	if ((hw->mac.type == e1000_82547) ||
740 	    (hw->mac.type == e1000_82541) ||
741 	    (hw->mac.type == e1000_82547_rev_2) ||
742 	    (hw->mac.type == e1000_82541_rev_2))
743 		e1000_init_script_state_82541(hw, B_TRUE);
744 
745 	/* Enable the TTL workaround for 82541/82547 */
746 	e1000_set_ttl_workaround_state_82541(hw, B_TRUE);
747 
748 #ifdef __sparc
749 	Adapter->strip_crc = B_TRUE;
750 #else
751 	Adapter->strip_crc = B_FALSE;
752 #endif
753 
754 	/* Get conf file properties */
755 	e1000g_get_conf(Adapter);
756 
757 	/* Get speed/duplex settings in conf file */
758 	hw->mac.forced_speed_duplex = ADVERTISE_100_FULL;
759 	hw->phy.autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT;
760 	e1000g_force_speed_duplex(Adapter);
761 
762 	/* Get Jumbo Frames settings in conf file */
763 	e1000g_get_max_frame_size(Adapter);
764 
765 	/* Set Rx/Tx buffer size */
766 	e1000g_set_bufsize(Adapter);
767 
768 	/* Master Latency Timer */
769 	Adapter->master_latency_timer = DEFAULT_MASTER_LATENCY_TIMER;
770 
771 	/* copper options */
772 	if (hw->phy.media_type == e1000_media_type_copper) {
773 		hw->phy.mdix = 0;	/* AUTO_ALL_MODES */
774 		hw->phy.disable_polarity_correction = B_FALSE;
775 		hw->phy.ms_type = e1000_ms_hw_default;	/* E1000_MASTER_SLAVE */
776 	}
777 
778 	/* The initial link state should be "unknown" */
779 	Adapter->link_state = LINK_STATE_UNKNOWN;
780 
781 	/* Initialize rx parameters */
782 	Adapter->rx_intr_delay = DEFAULT_RX_INTR_DELAY;
783 	Adapter->rx_intr_abs_delay = DEFAULT_RX_INTR_ABS_DELAY;
784 
785 	/* Initialize tx parameters */
786 	Adapter->tx_intr_enable = DEFAULT_TX_INTR_ENABLE;
787 	Adapter->tx_bcopy_thresh = DEFAULT_TX_BCOPY_THRESHOLD;
788 	Adapter->tx_intr_delay = DEFAULT_TX_INTR_DELAY;
789 	Adapter->tx_intr_abs_delay = DEFAULT_TX_INTR_ABS_DELAY;
790 
791 	/* Initialize rx parameters */
792 	Adapter->rx_bcopy_thresh = DEFAULT_RX_BCOPY_THRESHOLD;
793 
794 	return (DDI_SUCCESS);
795 }
796 
797 static void
798 e1000g_set_bufsize(struct e1000g *Adapter)
799 {
800 	struct e1000_mac_info *mac = &Adapter->shared.mac;
801 	uint64_t rx_size;
802 	uint64_t tx_size;
803 
804 #ifdef __sparc
805 	dev_info_t *devinfo = Adapter->dip;
806 	ulong_t iommu_pagesize;
807 
808 	/* Get the system page size */
809 	Adapter->sys_page_sz = ddi_ptob(devinfo, (ulong_t)1);
810 	iommu_pagesize = dvma_pagesize(devinfo);
811 	if (iommu_pagesize != 0) {
812 		if (Adapter->sys_page_sz == iommu_pagesize) {
813 			if (iommu_pagesize > 0x4000)
814 				Adapter->sys_page_sz = 0x4000;
815 		} else {
816 			if (Adapter->sys_page_sz > iommu_pagesize)
817 				Adapter->sys_page_sz = iommu_pagesize;
818 		}
819 	}
820 	if (Adapter->lso_enable) {
821 		Adapter->dvma_page_num = E1000_LSO_MAXLEN /
822 		    Adapter->sys_page_sz + E1000G_DEFAULT_DVMA_PAGE_NUM;
823 	} else {
824 		Adapter->dvma_page_num = Adapter->max_frame_size /
825 		    Adapter->sys_page_sz + E1000G_DEFAULT_DVMA_PAGE_NUM;
826 	}
827 	ASSERT(Adapter->dvma_page_num >= E1000G_DEFAULT_DVMA_PAGE_NUM);
828 #endif
829 
830 	Adapter->min_frame_size = ETHERMIN + ETHERFCSL;
831 
832 	rx_size = Adapter->max_frame_size + E1000G_IPALIGNPRESERVEROOM;
833 	if ((rx_size > FRAME_SIZE_UPTO_2K) && (rx_size <= FRAME_SIZE_UPTO_4K))
834 		Adapter->rx_buffer_size = E1000_RX_BUFFER_SIZE_4K;
835 	else if ((rx_size > FRAME_SIZE_UPTO_4K) &&
836 	    (rx_size <= FRAME_SIZE_UPTO_8K))
837 		Adapter->rx_buffer_size = E1000_RX_BUFFER_SIZE_8K;
838 	else if ((rx_size > FRAME_SIZE_UPTO_8K) &&
839 	    (rx_size <= FRAME_SIZE_UPTO_16K))
840 		Adapter->rx_buffer_size = E1000_RX_BUFFER_SIZE_16K;
841 	else
842 		Adapter->rx_buffer_size = E1000_RX_BUFFER_SIZE_2K;
843 
844 	tx_size = Adapter->max_frame_size;
845 	if ((tx_size > FRAME_SIZE_UPTO_2K) && (tx_size <= FRAME_SIZE_UPTO_4K))
846 		Adapter->tx_buffer_size = E1000_TX_BUFFER_SIZE_4K;
847 	else if ((tx_size > FRAME_SIZE_UPTO_4K) &&
848 	    (tx_size <= FRAME_SIZE_UPTO_8K))
849 		Adapter->tx_buffer_size = E1000_TX_BUFFER_SIZE_8K;
850 	else if ((tx_size > FRAME_SIZE_UPTO_8K) &&
851 	    (tx_size <= FRAME_SIZE_UPTO_16K))
852 		Adapter->tx_buffer_size = E1000_TX_BUFFER_SIZE_16K;
853 	else
854 		Adapter->tx_buffer_size = E1000_TX_BUFFER_SIZE_2K;
855 
856 	/*
857 	 * For Wiseman adapters we have an requirement of having receive
858 	 * buffers aligned at 256 byte boundary. Since Livengood does not
859 	 * require this and forcing it for all hardwares will have
860 	 * performance implications, I am making it applicable only for
861 	 * Wiseman and for Jumbo frames enabled mode as rest of the time,
862 	 * it is okay to have normal frames...but it does involve a
863 	 * potential risk where we may loose data if buffer is not
864 	 * aligned...so all wiseman boards to have 256 byte aligned
865 	 * buffers
866 	 */
867 	if (mac->type < e1000_82543)
868 		Adapter->rx_buf_align = RECEIVE_BUFFER_ALIGN_SIZE;
869 	else
870 		Adapter->rx_buf_align = 1;
871 }
872 
873 /*
874  * e1000g_detach - driver detach
875  *
876  * The detach() function is the complement of the attach routine.
877  * If cmd is set to DDI_DETACH, detach() is used to remove  the
878  * state  associated  with  a  given  instance of a device node
879  * prior to the removal of that instance from the system.
880  *
881  * The detach() function will be called once for each  instance
882  * of the device for which there has been a successful attach()
883  * once there are no longer  any  opens  on  the  device.
884  *
885  * Interrupts routine are disabled, All memory allocated by this
886  * driver are freed.
887  */
888 static int
889 e1000g_detach(dev_info_t *devinfo, ddi_detach_cmd_t cmd)
890 {
891 	struct e1000g *Adapter;
892 	boolean_t rx_drain;
893 
894 	switch (cmd) {
895 	default:
896 		return (DDI_FAILURE);
897 
898 	case DDI_SUSPEND:
899 		return (e1000g_suspend(devinfo));
900 
901 	case DDI_DETACH:
902 		break;
903 	}
904 
905 	Adapter = (struct e1000g *)ddi_get_driver_private(devinfo);
906 	if (Adapter == NULL)
907 		return (DDI_FAILURE);
908 
909 	if (mac_unregister(Adapter->mh) != 0) {
910 		e1000g_log(Adapter, CE_WARN, "Unregister MAC failed");
911 		return (DDI_FAILURE);
912 	}
913 	Adapter->attach_progress &= ~ATTACH_PROGRESS_MAC;
914 
915 
916 	if (Adapter->chip_state != E1000G_STOP)
917 		e1000g_stop(Adapter, B_TRUE);
918 
919 	rx_drain = e1000g_rx_drain(Adapter);
920 
921 	/*
922 	 * If e1000g_force_detach is enabled, driver detach is safe.
923 	 * We will let e1000g_free_priv_devi_node routine determine
924 	 * whether we need to free the priv_dip entry for current
925 	 * driver instance.
926 	 */
927 	if (e1000g_force_detach) {
928 		e1000g_free_priv_devi_node(Adapter, rx_drain);
929 	} else {
930 		if (!rx_drain)
931 			return (DDI_FAILURE);
932 	}
933 
934 	e1000g_unattach(devinfo, Adapter);
935 
936 	return (DDI_SUCCESS);
937 }
938 
939 /*
940  * e1000g_free_priv_devi_node - free a priv_dip entry for driver instance
941  *
942  * If free_flag is true, that indicates the upper layer is not holding
943  * the rx buffers, we could free the priv_dip entry safely.
944  *
945  * Otherwise, we have to keep this entry even after driver detached,
946  * and we also need to mark this entry with E1000G_PRIV_DEVI_DETACH flag,
947  * so that driver could free it while all of rx buffers are returned
948  * by upper layer later.
949  */
950 static void
951 e1000g_free_priv_devi_node(struct e1000g *Adapter, boolean_t free_flag)
952 {
953 	private_devi_list_t *devi_node, *devi_del;
954 
955 	rw_enter(&e1000g_rx_detach_lock, RW_WRITER);
956 	ASSERT(e1000g_private_devi_list != NULL);
957 	ASSERT(Adapter->priv_dip != NULL);
958 
959 	devi_node = e1000g_private_devi_list;
960 	if (devi_node->priv_dip == Adapter->priv_dip) {
961 		if (free_flag) {
962 			e1000g_private_devi_list =
963 			    devi_node->next;
964 			kmem_free(devi_node->priv_dip,
965 			    sizeof (struct dev_info));
966 			kmem_free(devi_node,
967 			    sizeof (private_devi_list_t));
968 		} else {
969 			ASSERT(e1000g_mblks_pending != 0);
970 			devi_node->flag =
971 			    E1000G_PRIV_DEVI_DETACH;
972 		}
973 		rw_exit(&e1000g_rx_detach_lock);
974 		return;
975 	}
976 
977 	devi_node = e1000g_private_devi_list;
978 	while (devi_node->next != NULL) {
979 		if (devi_node->next->priv_dip == Adapter->priv_dip) {
980 			if (free_flag) {
981 				devi_del = devi_node->next;
982 				devi_node->next = devi_del->next;
983 				kmem_free(devi_del->priv_dip,
984 				    sizeof (struct dev_info));
985 				kmem_free(devi_del,
986 				    sizeof (private_devi_list_t));
987 			} else {
988 				ASSERT(e1000g_mblks_pending != 0);
989 				devi_node->next->flag =
990 				    E1000G_PRIV_DEVI_DETACH;
991 			}
992 			break;
993 		}
994 		devi_node = devi_node->next;
995 	}
996 	rw_exit(&e1000g_rx_detach_lock);
997 }
998 
999 static void
1000 e1000g_unattach(dev_info_t *devinfo, struct e1000g *Adapter)
1001 {
1002 	if (Adapter->attach_progress & ATTACH_PROGRESS_ENABLE_INTR) {
1003 		(void) e1000g_disable_intrs(Adapter);
1004 	}
1005 
1006 	if (Adapter->attach_progress & ATTACH_PROGRESS_MAC) {
1007 		(void) mac_unregister(Adapter->mh);
1008 	}
1009 
1010 	if (Adapter->attach_progress & ATTACH_PROGRESS_ADD_INTR) {
1011 		(void) e1000g_rem_intrs(Adapter);
1012 	}
1013 
1014 	if (Adapter->attach_progress & ATTACH_PROGRESS_SETUP) {
1015 		(void) ddi_prop_remove_all(devinfo);
1016 	}
1017 
1018 	if (Adapter->attach_progress & ATTACH_PROGRESS_KSTATS) {
1019 		kstat_delete((kstat_t *)Adapter->e1000g_ksp);
1020 	}
1021 
1022 	if (Adapter->attach_progress & ATTACH_PROGRESS_INIT) {
1023 		stop_link_timer(Adapter);
1024 		if (e1000_reset_hw(&Adapter->shared) != 0) {
1025 			e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1026 			ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_LOST);
1027 		}
1028 	}
1029 
1030 	if (Adapter->attach_progress & ATTACH_PROGRESS_REGS_MAP) {
1031 		if (Adapter->osdep.reg_handle != NULL)
1032 			ddi_regs_map_free(&Adapter->osdep.reg_handle);
1033 		if (Adapter->osdep.ich_flash_handle != NULL)
1034 			ddi_regs_map_free(&Adapter->osdep.ich_flash_handle);
1035 	}
1036 
1037 	if (Adapter->attach_progress & ATTACH_PROGRESS_PCI_CONFIG) {
1038 		if (Adapter->osdep.cfg_handle != NULL)
1039 			pci_config_teardown(&Adapter->osdep.cfg_handle);
1040 	}
1041 
1042 	if (Adapter->attach_progress & ATTACH_PROGRESS_LOCKS) {
1043 		e1000g_destroy_locks(Adapter);
1044 	}
1045 
1046 	if (Adapter->attach_progress & ATTACH_PROGRESS_FMINIT) {
1047 		e1000g_fm_fini(Adapter);
1048 	}
1049 
1050 	e1000_remove_device(&Adapter->shared);
1051 
1052 	kmem_free((caddr_t)Adapter, sizeof (struct e1000g));
1053 
1054 	/*
1055 	 * Another hotplug spec requirement,
1056 	 * run ddi_set_driver_private(devinfo, null);
1057 	 */
1058 	ddi_set_driver_private(devinfo, NULL);
1059 }
1060 
1061 static void
1062 e1000g_init_locks(struct e1000g *Adapter)
1063 {
1064 	e1000g_tx_ring_t *tx_ring;
1065 	e1000g_rx_ring_t *rx_ring;
1066 
1067 	rw_init(&Adapter->chip_lock, NULL,
1068 	    RW_DRIVER, DDI_INTR_PRI(Adapter->intr_pri));
1069 	mutex_init(&Adapter->link_lock, NULL,
1070 	    MUTEX_DRIVER, DDI_INTR_PRI(Adapter->intr_pri));
1071 	mutex_init(&Adapter->watchdog_lock, NULL,
1072 	    MUTEX_DRIVER, DDI_INTR_PRI(Adapter->intr_pri));
1073 
1074 	tx_ring = Adapter->tx_ring;
1075 
1076 	mutex_init(&tx_ring->tx_lock, NULL,
1077 	    MUTEX_DRIVER, DDI_INTR_PRI(Adapter->intr_pri));
1078 	mutex_init(&tx_ring->usedlist_lock, NULL,
1079 	    MUTEX_DRIVER, DDI_INTR_PRI(Adapter->intr_pri));
1080 	mutex_init(&tx_ring->freelist_lock, NULL,
1081 	    MUTEX_DRIVER, DDI_INTR_PRI(Adapter->intr_pri));
1082 
1083 	rx_ring = Adapter->rx_ring;
1084 
1085 	mutex_init(&rx_ring->freelist_lock, NULL,
1086 	    MUTEX_DRIVER, DDI_INTR_PRI(Adapter->intr_pri));
1087 }
1088 
1089 static void
1090 e1000g_destroy_locks(struct e1000g *Adapter)
1091 {
1092 	e1000g_tx_ring_t *tx_ring;
1093 	e1000g_rx_ring_t *rx_ring;
1094 
1095 	tx_ring = Adapter->tx_ring;
1096 	mutex_destroy(&tx_ring->tx_lock);
1097 	mutex_destroy(&tx_ring->usedlist_lock);
1098 	mutex_destroy(&tx_ring->freelist_lock);
1099 
1100 	rx_ring = Adapter->rx_ring;
1101 	mutex_destroy(&rx_ring->freelist_lock);
1102 
1103 	mutex_destroy(&Adapter->link_lock);
1104 	mutex_destroy(&Adapter->watchdog_lock);
1105 	rw_destroy(&Adapter->chip_lock);
1106 }
1107 
1108 static int
1109 e1000g_resume(dev_info_t *devinfo)
1110 {
1111 	struct e1000g *Adapter;
1112 
1113 	Adapter = (struct e1000g *)ddi_get_driver_private(devinfo);
1114 	if (Adapter == NULL)
1115 		return (DDI_FAILURE);
1116 
1117 	if (e1000g_start(Adapter, B_TRUE))
1118 		return (DDI_FAILURE);
1119 
1120 	return (DDI_SUCCESS);
1121 }
1122 
1123 static int
1124 e1000g_suspend(dev_info_t *devinfo)
1125 {
1126 	struct e1000g *Adapter;
1127 
1128 	Adapter = (struct e1000g *)ddi_get_driver_private(devinfo);
1129 	if (Adapter == NULL)
1130 		return (DDI_FAILURE);
1131 
1132 	e1000g_stop(Adapter, B_TRUE);
1133 
1134 	return (DDI_SUCCESS);
1135 }
1136 
1137 static int
1138 e1000g_init(struct e1000g *Adapter)
1139 {
1140 	uint32_t pba;
1141 	uint32_t high_water;
1142 	struct e1000_hw *hw;
1143 	clock_t link_timeout;
1144 
1145 	hw = &Adapter->shared;
1146 
1147 	rw_enter(&Adapter->chip_lock, RW_WRITER);
1148 
1149 	/*
1150 	 * reset to put the hardware in a known state
1151 	 * before we try to do anything with the eeprom
1152 	 */
1153 	if (e1000_reset_hw(hw) != 0) {
1154 		e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1155 		goto init_fail;
1156 	}
1157 
1158 	if (e1000_validate_nvm_checksum(hw) < 0) {
1159 		/*
1160 		 * Some PCI-E parts fail the first check due to
1161 		 * the link being in sleep state.  Call it again,
1162 		 * if it fails a second time its a real issue.
1163 		 */
1164 		if (e1000_validate_nvm_checksum(hw) < 0) {
1165 			e1000g_log(Adapter, CE_WARN,
1166 			    "Invalid NVM checksum. Please contact "
1167 			    "the vendor to update the NVM.");
1168 			e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1169 			goto init_fail;
1170 		}
1171 	}
1172 
1173 #ifdef __sparc
1174 	/*
1175 	 * Firstly, we try to get the local ethernet address from OBP. If
1176 	 * fail, we get from EEPROM of NIC card.
1177 	 */
1178 	if (!e1000g_find_mac_address(Adapter)) {
1179 		if (e1000_read_mac_addr(hw) < 0) {
1180 			e1000g_log(Adapter, CE_WARN, "Read mac addr failed");
1181 			e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1182 			goto init_fail;
1183 		}
1184 	}
1185 #else
1186 	/* Get the local ethernet address. */
1187 	if (e1000_read_mac_addr(hw) < 0) {
1188 		e1000g_log(Adapter, CE_WARN, "Read mac addr failed");
1189 		e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1190 		goto init_fail;
1191 	}
1192 #endif
1193 
1194 	/* check for valid mac address */
1195 	if (!is_valid_mac_addr(hw->mac.addr)) {
1196 		e1000g_log(Adapter, CE_WARN, "Invalid mac addr");
1197 		e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1198 		goto init_fail;
1199 	}
1200 
1201 	/* Set LAA state for 82571 chipset */
1202 	e1000_set_laa_state_82571(hw, B_TRUE);
1203 
1204 	/* Master Latency Timer implementation */
1205 	if (Adapter->master_latency_timer) {
1206 		pci_config_put8(Adapter->osdep.cfg_handle,
1207 		    PCI_CONF_LATENCY_TIMER, Adapter->master_latency_timer);
1208 	}
1209 
1210 	if (hw->mac.type < e1000_82547) {
1211 		/*
1212 		 * Total FIFO is 64K
1213 		 */
1214 		if (Adapter->max_frame_size > FRAME_SIZE_UPTO_8K)
1215 			pba = E1000_PBA_40K;	/* 40K for Rx, 24K for Tx */
1216 		else
1217 			pba = E1000_PBA_48K;	/* 48K for Rx, 16K for Tx */
1218 	} else if (hw->mac.type >= e1000_82571 &&
1219 	    hw->mac.type <= e1000_82572) {
1220 		/*
1221 		 * Total FIFO is 48K
1222 		 */
1223 		if (Adapter->max_frame_size > FRAME_SIZE_UPTO_8K)
1224 			pba = E1000_PBA_30K;	/* 30K for Rx, 18K for Tx */
1225 		else
1226 			pba = E1000_PBA_38K;	/* 38K for Rx, 10K for Tx */
1227 	} else if (hw->mac.type == e1000_ich8lan) {
1228 		pba = E1000_PBA_8K;		/* 8K for Rx, 12K for Tx */
1229 	} else if (hw->mac.type == e1000_ich9lan) {
1230 		pba = E1000_PBA_12K;
1231 	} else {
1232 		/*
1233 		 * Total FIFO is 40K
1234 		 */
1235 		if (Adapter->max_frame_size > FRAME_SIZE_UPTO_8K)
1236 			pba = E1000_PBA_22K;	/* 22K for Rx, 18K for Tx */
1237 		else
1238 			pba = E1000_PBA_30K;	/* 30K for Rx, 10K for Tx */
1239 	}
1240 	E1000_WRITE_REG(hw, E1000_PBA, pba);
1241 
1242 	/*
1243 	 * These parameters set thresholds for the adapter's generation(Tx)
1244 	 * and response(Rx) to Ethernet PAUSE frames.  These are just threshold
1245 	 * settings.  Flow control is enabled or disabled in the configuration
1246 	 * file.
1247 	 * High-water mark is set down from the top of the rx fifo (not
1248 	 * sensitive to max_frame_size) and low-water is set just below
1249 	 * high-water mark.
1250 	 * The high water mark must be low enough to fit one full frame above
1251 	 * it in the rx FIFO.  Should be the lower of:
1252 	 * 90% of the Rx FIFO size and the full Rx FIFO size minus the early
1253 	 * receive size (assuming ERT set to E1000_ERT_2048), or the full
1254 	 * Rx FIFO size minus one full frame.
1255 	 */
1256 	high_water = min(((pba << 10) * 9 / 10),
1257 	    ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_ich9lan) ?
1258 	    ((pba << 10) - (E1000_ERT_2048 << 3)) :
1259 	    ((pba << 10) - Adapter->max_frame_size)));
1260 
1261 	hw->fc.high_water = high_water & 0xFFF8;
1262 	hw->fc.low_water = hw->fc.high_water - 8;
1263 
1264 	if (hw->mac.type == e1000_80003es2lan)
1265 		hw->fc.pause_time = 0xFFFF;
1266 	else
1267 		hw->fc.pause_time = E1000_FC_PAUSE_TIME;
1268 	hw->fc.send_xon = B_TRUE;
1269 
1270 	/*
1271 	 * Reset the adapter hardware the second time.
1272 	 */
1273 	if (e1000_reset_hw(hw) != 0) {
1274 		e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1275 		goto init_fail;
1276 	}
1277 
1278 	/* disable wakeup control by default */
1279 	if (hw->mac.type >= e1000_82544)
1280 		E1000_WRITE_REG(hw, E1000_WUC, 0);
1281 
1282 	/* MWI setup */
1283 	e1000_pci_set_mwi(hw);
1284 
1285 	/*
1286 	 * Configure/Initialize hardware
1287 	 */
1288 	if (e1000_init_hw(hw) < 0) {
1289 		e1000g_log(Adapter, CE_WARN, "Initialize hw failed");
1290 		e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1291 		goto init_fail;
1292 	}
1293 
1294 	/* Disable Smart Power Down */
1295 	phy_spd_state(hw, B_FALSE);
1296 
1297 	/* Make sure driver has control */
1298 	e1000g_get_driver_control(hw);
1299 
1300 	/*
1301 	 * Initialize unicast addresses.
1302 	 */
1303 	e1000g_init_unicst(Adapter);
1304 
1305 	/*
1306 	 * Setup and initialize the mctable structures.  After this routine
1307 	 * completes  Multicast table will be set
1308 	 */
1309 	e1000g_setup_multicast(Adapter);
1310 	msec_delay(5);
1311 
1312 	/*
1313 	 * Implement Adaptive IFS
1314 	 */
1315 	e1000_reset_adaptive(hw);
1316 
1317 	/* Setup Interrupt Throttling Register */
1318 	if (hw->mac.type >= e1000_82540) {
1319 		E1000_WRITE_REG(hw, E1000_ITR, Adapter->intr_throttling_rate);
1320 	} else
1321 		Adapter->intr_adaptive = B_FALSE;
1322 
1323 	/* Start the timer for link setup */
1324 	if (hw->mac.autoneg)
1325 		link_timeout = PHY_AUTO_NEG_LIMIT * drv_usectohz(100000);
1326 	else
1327 		link_timeout = PHY_FORCE_LIMIT * drv_usectohz(100000);
1328 
1329 	mutex_enter(&Adapter->link_lock);
1330 	if (hw->phy.autoneg_wait_to_complete) {
1331 		Adapter->link_complete = B_TRUE;
1332 	} else {
1333 		Adapter->link_complete = B_FALSE;
1334 		Adapter->link_tid = timeout(e1000g_link_timer,
1335 		    (void *)Adapter, link_timeout);
1336 	}
1337 	mutex_exit(&Adapter->link_lock);
1338 
1339 	/* Enable PCI-Ex master */
1340 	if (hw->bus.type == e1000_bus_type_pci_express) {
1341 		e1000_enable_pciex_master(hw);
1342 	}
1343 
1344 	/* Save the state of the phy */
1345 	e1000g_get_phy_state(Adapter);
1346 
1347 	e1000g_param_sync(Adapter);
1348 
1349 	Adapter->init_count++;
1350 
1351 	if (e1000g_check_acc_handle(Adapter->osdep.cfg_handle) != DDI_FM_OK) {
1352 		goto init_fail;
1353 	}
1354 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK) {
1355 		goto init_fail;
1356 	}
1357 
1358 	rw_exit(&Adapter->chip_lock);
1359 
1360 	return (DDI_SUCCESS);
1361 
1362 init_fail:
1363 	rw_exit(&Adapter->chip_lock);
1364 	ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_LOST);
1365 	return (DDI_FAILURE);
1366 }
1367 
1368 /*
1369  * Check if the link is up
1370  */
1371 static boolean_t
1372 e1000g_link_up(struct e1000g *Adapter)
1373 {
1374 	struct e1000_hw *hw;
1375 	boolean_t link_up;
1376 
1377 	hw = &Adapter->shared;
1378 
1379 	e1000_check_for_link(hw);
1380 
1381 	if ((E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU) ||
1382 	    ((!hw->mac.get_link_status) && (hw->mac.type == e1000_82543)) ||
1383 	    ((hw->phy.media_type == e1000_media_type_internal_serdes) &&
1384 	    (hw->mac.serdes_has_link))) {
1385 		link_up = B_TRUE;
1386 	} else {
1387 		link_up = B_FALSE;
1388 	}
1389 
1390 	return (link_up);
1391 }
1392 
1393 static void
1394 e1000g_m_ioctl(void *arg, queue_t *q, mblk_t *mp)
1395 {
1396 	struct iocblk *iocp;
1397 	struct e1000g *e1000gp;
1398 	enum ioc_reply status;
1399 	int err;
1400 
1401 	iocp = (struct iocblk *)mp->b_rptr;
1402 	iocp->ioc_error = 0;
1403 	e1000gp = (struct e1000g *)arg;
1404 
1405 	ASSERT(e1000gp);
1406 	if (e1000gp == NULL) {
1407 		miocnak(q, mp, 0, EINVAL);
1408 		return;
1409 	}
1410 
1411 	switch (iocp->ioc_cmd) {
1412 
1413 	case LB_GET_INFO_SIZE:
1414 	case LB_GET_INFO:
1415 	case LB_GET_MODE:
1416 	case LB_SET_MODE:
1417 		status = e1000g_loopback_ioctl(e1000gp, iocp, mp);
1418 		break;
1419 
1420 
1421 #ifdef E1000G_DEBUG
1422 	case E1000G_IOC_REG_PEEK:
1423 	case E1000G_IOC_REG_POKE:
1424 		status = e1000g_pp_ioctl(e1000gp, iocp, mp);
1425 		break;
1426 	case E1000G_IOC_CHIP_RESET:
1427 		e1000gp->reset_count++;
1428 		if (e1000g_reset(e1000gp))
1429 			status = IOC_ACK;
1430 		else
1431 			status = IOC_INVAL;
1432 		break;
1433 #endif
1434 	default:
1435 		status = IOC_INVAL;
1436 		break;
1437 	}
1438 
1439 	/*
1440 	 * Decide how to reply
1441 	 */
1442 	switch (status) {
1443 	default:
1444 	case IOC_INVAL:
1445 		/*
1446 		 * Error, reply with a NAK and EINVAL or the specified error
1447 		 */
1448 		miocnak(q, mp, 0, iocp->ioc_error == 0 ?
1449 		    EINVAL : iocp->ioc_error);
1450 		break;
1451 
1452 	case IOC_DONE:
1453 		/*
1454 		 * OK, reply already sent
1455 		 */
1456 		break;
1457 
1458 	case IOC_ACK:
1459 		/*
1460 		 * OK, reply with an ACK
1461 		 */
1462 		miocack(q, mp, 0, 0);
1463 		break;
1464 
1465 	case IOC_REPLY:
1466 		/*
1467 		 * OK, send prepared reply as ACK or NAK
1468 		 */
1469 		mp->b_datap->db_type = iocp->ioc_error == 0 ?
1470 		    M_IOCACK : M_IOCNAK;
1471 		qreply(q, mp);
1472 		break;
1473 	}
1474 }
1475 
1476 static int
1477 e1000g_m_start(void *arg)
1478 {
1479 	struct e1000g *Adapter = (struct e1000g *)arg;
1480 
1481 	return (e1000g_start(Adapter, B_TRUE));
1482 }
1483 
1484 static int
1485 e1000g_start(struct e1000g *Adapter, boolean_t global)
1486 {
1487 	if (global) {
1488 		/* Allocate dma resources for descriptors and buffers */
1489 		if (e1000g_alloc_dma_resources(Adapter) != DDI_SUCCESS) {
1490 			e1000g_log(Adapter, CE_WARN,
1491 			    "Alloc DMA resources failed");
1492 			return (ENOTACTIVE);
1493 		}
1494 		Adapter->rx_buffer_setup = B_FALSE;
1495 	}
1496 
1497 	if (!(Adapter->attach_progress & ATTACH_PROGRESS_INIT)) {
1498 		if (e1000g_init(Adapter) != DDI_SUCCESS) {
1499 			e1000g_log(Adapter, CE_WARN,
1500 			    "Adapter initialization failed");
1501 			if (global)
1502 				e1000g_release_dma_resources(Adapter);
1503 			return (ENOTACTIVE);
1504 		}
1505 	}
1506 
1507 	rw_enter(&Adapter->chip_lock, RW_WRITER);
1508 
1509 	/* Setup and initialize the transmit structures */
1510 	e1000g_tx_setup(Adapter);
1511 	msec_delay(5);
1512 
1513 	/* Setup and initialize the receive structures */
1514 	e1000g_rx_setup(Adapter);
1515 	msec_delay(5);
1516 
1517 	e1000g_mask_interrupt(Adapter);
1518 
1519 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK) {
1520 		rw_exit(&Adapter->chip_lock);
1521 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_LOST);
1522 		return (ENOTACTIVE);
1523 	}
1524 
1525 	Adapter->chip_state = E1000G_START;
1526 	Adapter->attach_progress |= ATTACH_PROGRESS_INIT;
1527 
1528 	rw_exit(&Adapter->chip_lock);
1529 
1530 	/* Enable and start the watchdog timer */
1531 	enable_watchdog_timer(Adapter);
1532 
1533 	return (0);
1534 }
1535 
1536 static void
1537 e1000g_m_stop(void *arg)
1538 {
1539 	struct e1000g *Adapter = (struct e1000g *)arg;
1540 
1541 	e1000g_stop(Adapter, B_TRUE);
1542 }
1543 
1544 static void
1545 e1000g_stop(struct e1000g *Adapter, boolean_t global)
1546 {
1547 	/* Set stop flags */
1548 	rw_enter(&Adapter->chip_lock, RW_WRITER);
1549 
1550 	Adapter->chip_state = E1000G_STOP;
1551 	Adapter->attach_progress &= ~ATTACH_PROGRESS_INIT;
1552 
1553 	rw_exit(&Adapter->chip_lock);
1554 
1555 	/* Drain tx sessions */
1556 	(void) e1000g_tx_drain(Adapter);
1557 
1558 	/* Disable and stop all the timers */
1559 	disable_watchdog_timer(Adapter);
1560 	stop_link_timer(Adapter);
1561 	stop_82547_timer(Adapter->tx_ring);
1562 
1563 	/* Stop the chip and release pending resources */
1564 	rw_enter(&Adapter->chip_lock, RW_WRITER);
1565 
1566 	e1000g_clear_all_interrupts(Adapter);
1567 	if (e1000_reset_hw(&Adapter->shared) != 0) {
1568 		e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_INVAL_STATE);
1569 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_LOST);
1570 	}
1571 
1572 	/* Release resources still held by the TX descriptors */
1573 	e1000g_tx_clean(Adapter);
1574 
1575 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK)
1576 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_LOST);
1577 
1578 	/* Clean the pending rx jumbo packet fragment */
1579 	e1000g_rx_clean(Adapter);
1580 
1581 	rw_exit(&Adapter->chip_lock);
1582 
1583 	if (global)
1584 		e1000g_release_dma_resources(Adapter);
1585 }
1586 
1587 static void
1588 e1000g_rx_clean(struct e1000g *Adapter)
1589 {
1590 	e1000g_rx_ring_t *rx_ring = Adapter->rx_ring;
1591 
1592 	if (rx_ring->rx_mblk != NULL) {
1593 		freemsg(rx_ring->rx_mblk);
1594 		rx_ring->rx_mblk = NULL;
1595 		rx_ring->rx_mblk_tail = NULL;
1596 		rx_ring->rx_mblk_len = 0;
1597 	}
1598 }
1599 
1600 static void
1601 e1000g_tx_clean(struct e1000g *Adapter)
1602 {
1603 	e1000g_tx_ring_t *tx_ring;
1604 	p_tx_sw_packet_t packet;
1605 	mblk_t *mp;
1606 	mblk_t *nmp;
1607 	uint32_t packet_count;
1608 
1609 	tx_ring = Adapter->tx_ring;
1610 
1611 	/*
1612 	 * Here we don't need to protect the lists using
1613 	 * the usedlist_lock and freelist_lock, for they
1614 	 * have been protected by the chip_lock.
1615 	 */
1616 	mp = NULL;
1617 	nmp = NULL;
1618 	packet_count = 0;
1619 	packet = (p_tx_sw_packet_t)QUEUE_GET_HEAD(&tx_ring->used_list);
1620 	while (packet != NULL) {
1621 		if (packet->mp != NULL) {
1622 			/* Assemble the message chain */
1623 			if (mp == NULL) {
1624 				mp = packet->mp;
1625 				nmp = packet->mp;
1626 			} else {
1627 				nmp->b_next = packet->mp;
1628 				nmp = packet->mp;
1629 			}
1630 			/* Disconnect the message from the sw packet */
1631 			packet->mp = NULL;
1632 		}
1633 
1634 		e1000g_free_tx_swpkt(packet);
1635 		packet_count++;
1636 
1637 		packet = (p_tx_sw_packet_t)
1638 		    QUEUE_GET_NEXT(&tx_ring->used_list, &packet->Link);
1639 	}
1640 
1641 	if (mp != NULL)
1642 		freemsgchain(mp);
1643 
1644 	if (packet_count > 0) {
1645 		QUEUE_APPEND(&tx_ring->free_list, &tx_ring->used_list);
1646 		QUEUE_INIT_LIST(&tx_ring->used_list);
1647 
1648 		/* Setup TX descriptor pointers */
1649 		tx_ring->tbd_next = tx_ring->tbd_first;
1650 		tx_ring->tbd_oldest = tx_ring->tbd_first;
1651 
1652 		/* Setup our HW Tx Head & Tail descriptor pointers */
1653 		E1000_WRITE_REG(&Adapter->shared, E1000_TDH(0), 0);
1654 		E1000_WRITE_REG(&Adapter->shared, E1000_TDT(0), 0);
1655 	}
1656 }
1657 
1658 static boolean_t
1659 e1000g_tx_drain(struct e1000g *Adapter)
1660 {
1661 	int i;
1662 	boolean_t done;
1663 	e1000g_tx_ring_t *tx_ring;
1664 
1665 	tx_ring = Adapter->tx_ring;
1666 
1667 	/* Allow up to 'wsdraintime' for pending xmit's to complete. */
1668 	for (i = 0; i < TX_DRAIN_TIME; i++) {
1669 		mutex_enter(&tx_ring->usedlist_lock);
1670 		done = IS_QUEUE_EMPTY(&tx_ring->used_list);
1671 		mutex_exit(&tx_ring->usedlist_lock);
1672 
1673 		if (done)
1674 			break;
1675 
1676 		msec_delay(1);
1677 	}
1678 
1679 	return (done);
1680 }
1681 
1682 static boolean_t
1683 e1000g_rx_drain(struct e1000g *Adapter)
1684 {
1685 	e1000g_rx_ring_t *rx_ring;
1686 	p_rx_sw_packet_t packet;
1687 	boolean_t done;
1688 
1689 	rx_ring = Adapter->rx_ring;
1690 	done = B_TRUE;
1691 
1692 	rw_enter(&e1000g_rx_detach_lock, RW_WRITER);
1693 
1694 	while (rx_ring->pending_list != NULL) {
1695 		packet = rx_ring->pending_list;
1696 		rx_ring->pending_list =
1697 		    rx_ring->pending_list->next;
1698 
1699 		if (packet->flag == E1000G_RX_SW_STOP) {
1700 			packet->flag = E1000G_RX_SW_DETACH;
1701 			done = B_FALSE;
1702 		} else {
1703 			ASSERT(packet->flag == E1000G_RX_SW_FREE);
1704 			ASSERT(packet->mp == NULL);
1705 			e1000g_free_rx_sw_packet(packet);
1706 		}
1707 	}
1708 
1709 	rw_exit(&e1000g_rx_detach_lock);
1710 
1711 	return (done);
1712 }
1713 
1714 boolean_t
1715 e1000g_reset(struct e1000g *Adapter)
1716 {
1717 	e1000g_stop(Adapter, B_FALSE);
1718 
1719 	if (e1000g_start(Adapter, B_FALSE)) {
1720 		e1000g_log(Adapter, CE_WARN, "Reset failed");
1721 		return (B_FALSE);
1722 	}
1723 
1724 	return (B_TRUE);
1725 }
1726 
1727 boolean_t
1728 e1000g_global_reset(struct e1000g *Adapter)
1729 {
1730 	e1000g_stop(Adapter, B_TRUE);
1731 
1732 	Adapter->init_count = 0;
1733 
1734 	if (e1000g_start(Adapter, B_TRUE)) {
1735 		e1000g_log(Adapter, CE_WARN, "Reset failed");
1736 		return (B_FALSE);
1737 	}
1738 
1739 	return (B_TRUE);
1740 }
1741 
1742 /*
1743  * e1000g_intr_pciexpress - ISR for PCI Express chipsets
1744  *
1745  * This interrupt service routine is for PCI-Express adapters.
1746  * The ICR contents is valid only when the E1000_ICR_INT_ASSERTED
1747  * bit is set.
1748  */
1749 static uint_t
1750 e1000g_intr_pciexpress(caddr_t arg)
1751 {
1752 	struct e1000g *Adapter;
1753 	uint32_t icr;
1754 
1755 	Adapter = (struct e1000g *)arg;
1756 	icr = E1000_READ_REG(&Adapter->shared, E1000_ICR);
1757 
1758 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK)
1759 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
1760 
1761 	if (icr & E1000_ICR_INT_ASSERTED) {
1762 		/*
1763 		 * E1000_ICR_INT_ASSERTED bit was set:
1764 		 * Read(Clear) the ICR, claim this interrupt,
1765 		 * look for work to do.
1766 		 */
1767 		e1000g_intr_work(Adapter, icr);
1768 		return (DDI_INTR_CLAIMED);
1769 	} else {
1770 		/*
1771 		 * E1000_ICR_INT_ASSERTED bit was not set:
1772 		 * Don't claim this interrupt, return immediately.
1773 		 */
1774 		return (DDI_INTR_UNCLAIMED);
1775 	}
1776 }
1777 
1778 /*
1779  * e1000g_intr - ISR for PCI/PCI-X chipsets
1780  *
1781  * This interrupt service routine is for PCI/PCI-X adapters.
1782  * We check the ICR contents no matter the E1000_ICR_INT_ASSERTED
1783  * bit is set or not.
1784  */
1785 static uint_t
1786 e1000g_intr(caddr_t arg)
1787 {
1788 	struct e1000g *Adapter;
1789 	uint32_t icr;
1790 
1791 	Adapter = (struct e1000g *)arg;
1792 	icr = E1000_READ_REG(&Adapter->shared, E1000_ICR);
1793 
1794 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK)
1795 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
1796 
1797 	if (icr) {
1798 		/*
1799 		 * Any bit was set in ICR:
1800 		 * Read(Clear) the ICR, claim this interrupt,
1801 		 * look for work to do.
1802 		 */
1803 		e1000g_intr_work(Adapter, icr);
1804 		return (DDI_INTR_CLAIMED);
1805 	} else {
1806 		/*
1807 		 * No bit was set in ICR:
1808 		 * Don't claim this interrupt, return immediately.
1809 		 */
1810 		return (DDI_INTR_UNCLAIMED);
1811 	}
1812 }
1813 
1814 /*
1815  * e1000g_intr_work - actual processing of ISR
1816  *
1817  * Read(clear) the ICR contents and call appropriate interrupt
1818  * processing routines.
1819  */
1820 static void
1821 e1000g_intr_work(struct e1000g *Adapter, uint32_t icr)
1822 {
1823 	struct e1000_hw *hw;
1824 	hw = &Adapter->shared;
1825 	e1000g_tx_ring_t *tx_ring = Adapter->tx_ring;
1826 	uint32_t itr;
1827 
1828 	Adapter->rx_pkt_cnt = 0;
1829 	Adapter->tx_pkt_cnt = 0;
1830 
1831 	rw_enter(&Adapter->chip_lock, RW_READER);
1832 	/*
1833 	 * Here we need to check the "chip_state" flag within the chip_lock to
1834 	 * ensure the receive routine will not execute when the adapter is
1835 	 * being reset.
1836 	 */
1837 	if (Adapter->chip_state != E1000G_START) {
1838 		rw_exit(&Adapter->chip_lock);
1839 		return;
1840 	}
1841 
1842 	if (icr & E1000_ICR_RXT0) {
1843 		mblk_t *mp;
1844 
1845 		mutex_enter(&Adapter->rx_ring->rx_lock);
1846 		mp = e1000g_receive(Adapter);
1847 		mutex_exit(&Adapter->rx_ring->rx_lock);
1848 
1849 		rw_exit(&Adapter->chip_lock);
1850 
1851 		if (mp != NULL)
1852 			mac_rx(Adapter->mh, Adapter->mrh, mp);
1853 	} else
1854 		rw_exit(&Adapter->chip_lock);
1855 
1856 	if (icr & E1000_ICR_TXDW) {
1857 		if (!Adapter->tx_intr_enable)
1858 			e1000g_clear_tx_interrupt(Adapter);
1859 
1860 		/* Recycle the tx descriptors */
1861 		rw_enter(&Adapter->chip_lock, RW_READER);
1862 		e1000g_recycle(tx_ring);
1863 		E1000G_DEBUG_STAT(tx_ring->stat_recycle_intr);
1864 		rw_exit(&Adapter->chip_lock);
1865 
1866 		/* Schedule the re-transmit */
1867 		if (tx_ring->resched_needed &&
1868 		    (tx_ring->tbd_avail > DEFAULT_TX_UPDATE_THRESHOLD)) {
1869 			tx_ring->resched_needed = B_FALSE;
1870 			mac_tx_update(Adapter->mh);
1871 			E1000G_STAT(tx_ring->stat_reschedule);
1872 		}
1873 	}
1874 
1875 	if (Adapter->intr_adaptive) {
1876 		itr = e1000g_get_itr(Adapter->rx_pkt_cnt, Adapter->tx_pkt_cnt,
1877 		    Adapter->intr_throttling_rate);
1878 		if (itr) {
1879 			E1000_WRITE_REG(hw, E1000_ITR, itr);
1880 			Adapter->intr_throttling_rate = itr;
1881 		}
1882 	}
1883 
1884 	/*
1885 	 * The Receive Sequence errors RXSEQ and the link status change LSC
1886 	 * are checked to detect that the cable has been pulled out. For
1887 	 * the Wiseman 2.0 silicon, the receive sequence errors interrupt
1888 	 * are an indication that cable is not connected.
1889 	 */
1890 	if ((icr & E1000_ICR_RXSEQ) ||
1891 	    (icr & E1000_ICR_LSC) ||
1892 	    (icr & E1000_ICR_GPI_EN1)) {
1893 		boolean_t link_changed;
1894 		timeout_id_t tid = 0;
1895 
1896 		stop_watchdog_timer(Adapter);
1897 
1898 		rw_enter(&Adapter->chip_lock, RW_WRITER);
1899 
1900 		/*
1901 		 * Because we got a link-status-change interrupt, force
1902 		 * e1000_check_for_link() to look at phy
1903 		 */
1904 		Adapter->shared.mac.get_link_status = B_TRUE;
1905 
1906 		/* e1000g_link_check takes care of link status change */
1907 		link_changed = e1000g_link_check(Adapter);
1908 
1909 		/* Get new phy state */
1910 		e1000g_get_phy_state(Adapter);
1911 
1912 		/*
1913 		 * If the link timer has not timed out, we'll not notify
1914 		 * the upper layer with any link state until the link is up.
1915 		 */
1916 		if (link_changed && !Adapter->link_complete) {
1917 			if (Adapter->link_state == LINK_STATE_UP) {
1918 				mutex_enter(&Adapter->link_lock);
1919 				Adapter->link_complete = B_TRUE;
1920 				tid = Adapter->link_tid;
1921 				Adapter->link_tid = 0;
1922 				mutex_exit(&Adapter->link_lock);
1923 			} else {
1924 				link_changed = B_FALSE;
1925 			}
1926 		}
1927 		rw_exit(&Adapter->chip_lock);
1928 
1929 		if (link_changed) {
1930 			if (tid != 0)
1931 				(void) untimeout(tid);
1932 
1933 			/*
1934 			 * Workaround for esb2. Data stuck in fifo on a link
1935 			 * down event. Reset the adapter to recover it.
1936 			 */
1937 			if ((Adapter->link_state == LINK_STATE_DOWN) &&
1938 			    (Adapter->shared.mac.type == e1000_80003es2lan))
1939 				(void) e1000g_reset(Adapter);
1940 
1941 			mac_link_update(Adapter->mh, Adapter->link_state);
1942 		}
1943 
1944 		start_watchdog_timer(Adapter);
1945 	}
1946 }
1947 
1948 static uint32_t
1949 e1000g_get_itr(uint32_t rx_packet, uint32_t tx_packet, uint32_t cur_itr)
1950 {
1951 	uint32_t new_itr;
1952 
1953 	/*
1954 	 * Determine a propper itr according to rx/tx packet count
1955 	 * per interrupt, the value of itr are based on document
1956 	 * and testing.
1957 	 */
1958 	if ((rx_packet < DEFAULT_INTR_PACKET_LOW) ||
1959 	    (tx_packet < DEFAULT_INTR_PACKET_LOW)) {
1960 		new_itr = DEFAULT_INTR_THROTTLING_LOW;
1961 		goto itr_done;
1962 	}
1963 	if ((rx_packet > DEFAULT_INTR_PACKET_HIGH) ||
1964 	    (tx_packet > DEFAULT_INTR_PACKET_HIGH)) {
1965 		new_itr = DEFAULT_INTR_THROTTLING_LOW;
1966 		goto itr_done;
1967 	}
1968 	if (cur_itr < DEFAULT_INTR_THROTTLING_HIGH) {
1969 		new_itr = cur_itr + (DEFAULT_INTR_THROTTLING_HIGH >> 2);
1970 		if (new_itr > DEFAULT_INTR_THROTTLING_HIGH)
1971 			new_itr = DEFAULT_INTR_THROTTLING_HIGH;
1972 	} else
1973 		new_itr = DEFAULT_INTR_THROTTLING_HIGH;
1974 
1975 itr_done:
1976 	if (cur_itr == new_itr)
1977 		return (0);
1978 	else
1979 		return (new_itr);
1980 }
1981 
1982 static void
1983 e1000g_init_unicst(struct e1000g *Adapter)
1984 {
1985 	struct e1000_hw *hw;
1986 	int slot;
1987 
1988 	hw = &Adapter->shared;
1989 
1990 	if (!Adapter->unicst_init) {
1991 		/* Initialize the multiple unicast addresses */
1992 		Adapter->unicst_total = MAX_NUM_UNICAST_ADDRESSES;
1993 
1994 		if ((hw->mac.type == e1000_82571) &&
1995 		    (e1000_get_laa_state_82571(hw) == B_TRUE))
1996 			Adapter->unicst_total--;
1997 
1998 		Adapter->unicst_avail = Adapter->unicst_total - 1;
1999 
2000 		/* Store the default mac address */
2001 		e1000_rar_set(hw, hw->mac.addr, 0);
2002 		if ((hw->mac.type == e1000_82571) &&
2003 		    (e1000_get_laa_state_82571(hw) == B_TRUE))
2004 			e1000_rar_set(hw, hw->mac.addr, LAST_RAR_ENTRY);
2005 
2006 		bcopy(hw->mac.addr, Adapter->unicst_addr[0].mac.addr,
2007 		    ETHERADDRL);
2008 		Adapter->unicst_addr[0].mac.set = 1;
2009 
2010 		for (slot = 1; slot < Adapter->unicst_total; slot++)
2011 			Adapter->unicst_addr[slot].mac.set = 0;
2012 
2013 		Adapter->unicst_init = B_TRUE;
2014 	} else {
2015 		/* Recover the default mac address */
2016 		bcopy(Adapter->unicst_addr[0].mac.addr, hw->mac.addr,
2017 		    ETHERADDRL);
2018 
2019 		/* Store the default mac address */
2020 		e1000_rar_set(hw, hw->mac.addr, 0);
2021 		if ((hw->mac.type == e1000_82571) &&
2022 		    (e1000_get_laa_state_82571(hw) == B_TRUE))
2023 			e1000_rar_set(hw, hw->mac.addr, LAST_RAR_ENTRY);
2024 
2025 		/* Re-configure the RAR registers */
2026 		for (slot = 1; slot < Adapter->unicst_total; slot++)
2027 			e1000_rar_set(hw,
2028 			    Adapter->unicst_addr[slot].mac.addr, slot);
2029 	}
2030 
2031 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK)
2032 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
2033 }
2034 
2035 static int
2036 e1000g_m_unicst(void *arg, const uint8_t *mac_addr)
2037 {
2038 	struct e1000g *Adapter;
2039 
2040 	Adapter = (struct e1000g *)arg;
2041 
2042 	/* Store the default MAC address */
2043 	bcopy(mac_addr, Adapter->shared.mac.addr, ETHERADDRL);
2044 
2045 	/* Set MAC address in address slot 0, which is the default address */
2046 	return (e1000g_unicst_set(Adapter, mac_addr, 0));
2047 }
2048 
2049 static int
2050 e1000g_unicst_set(struct e1000g *Adapter, const uint8_t *mac_addr,
2051     mac_addr_slot_t slot)
2052 {
2053 	struct e1000_hw *hw;
2054 
2055 	hw = &Adapter->shared;
2056 
2057 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2058 
2059 	/*
2060 	 * The first revision of Wiseman silicon (rev 2.0) has an errata
2061 	 * that requires the receiver to be in reset when any of the
2062 	 * receive address registers (RAR regs) are accessed.  The first
2063 	 * rev of Wiseman silicon also requires MWI to be disabled when
2064 	 * a global reset or a receive reset is issued.  So before we
2065 	 * initialize the RARs, we check the rev of the Wiseman controller
2066 	 * and work around any necessary HW errata.
2067 	 */
2068 	if ((hw->mac.type == e1000_82542) &&
2069 	    (hw->revision_id == E1000_REVISION_2)) {
2070 		e1000_pci_clear_mwi(hw);
2071 		E1000_WRITE_REG(hw, E1000_RCTL, E1000_RCTL_RST);
2072 		msec_delay(5);
2073 	}
2074 
2075 	bcopy(mac_addr, Adapter->unicst_addr[slot].mac.addr, ETHERADDRL);
2076 	e1000_rar_set(hw, (uint8_t *)mac_addr, slot);
2077 
2078 	if (slot == 0) {
2079 		if ((hw->mac.type == e1000_82571) &&
2080 		    (e1000_get_laa_state_82571(hw) == B_TRUE))
2081 			e1000_rar_set(hw, (uint8_t *)mac_addr, LAST_RAR_ENTRY);
2082 	}
2083 
2084 	/*
2085 	 * If we are using Wiseman rev 2.0 silicon, we will have previously
2086 	 * put the receive in reset, and disabled MWI, to work around some
2087 	 * HW errata.  Now we should take the receiver out of reset, and
2088 	 * re-enabled if MWI if it was previously enabled by the PCI BIOS.
2089 	 */
2090 	if ((hw->mac.type == e1000_82542) &&
2091 	    (hw->revision_id == E1000_REVISION_2)) {
2092 		E1000_WRITE_REG(hw, E1000_RCTL, 0);
2093 		msec_delay(1);
2094 		if (hw->bus.pci_cmd_word & CMD_MEM_WRT_INVALIDATE)
2095 			e1000_pci_set_mwi(hw);
2096 		e1000g_rx_setup(Adapter);
2097 	}
2098 
2099 	rw_exit(&Adapter->chip_lock);
2100 
2101 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK) {
2102 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
2103 		return (EIO);
2104 	}
2105 
2106 	return (0);
2107 }
2108 
2109 /*
2110  * e1000g_m_unicst_add() - will find an unused address slot, set the
2111  * address value to the one specified, reserve that slot and enable
2112  * the NIC to start filtering on the new MAC address.
2113  * Returns 0 on success.
2114  */
2115 static int
2116 e1000g_m_unicst_add(void *arg, mac_multi_addr_t *maddr)
2117 {
2118 	struct e1000g *Adapter = (struct e1000g *)arg;
2119 	mac_addr_slot_t slot;
2120 	int err;
2121 
2122 	if (mac_unicst_verify(Adapter->mh,
2123 	    maddr->mma_addr, maddr->mma_addrlen) == B_FALSE)
2124 		return (EINVAL);
2125 
2126 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2127 	if (Adapter->unicst_avail == 0) {
2128 		/* no slots available */
2129 		rw_exit(&Adapter->chip_lock);
2130 		return (ENOSPC);
2131 	}
2132 
2133 	/*
2134 	 * Primary/default address is in slot 0. The next addresses
2135 	 * are the multiple MAC addresses. So multiple MAC address 0
2136 	 * is in slot 1, 1 in slot 2, and so on. So the first multiple
2137 	 * MAC address resides in slot 1.
2138 	 */
2139 	for (slot = 1; slot < Adapter->unicst_total; slot++) {
2140 		if (Adapter->unicst_addr[slot].mac.set == 0) {
2141 			Adapter->unicst_addr[slot].mac.set = 1;
2142 			break;
2143 		}
2144 	}
2145 
2146 	ASSERT((slot > 0) && (slot < Adapter->unicst_total));
2147 
2148 	Adapter->unicst_avail--;
2149 	rw_exit(&Adapter->chip_lock);
2150 
2151 	maddr->mma_slot = slot;
2152 
2153 	if ((err = e1000g_unicst_set(Adapter, maddr->mma_addr, slot)) != 0) {
2154 		rw_enter(&Adapter->chip_lock, RW_WRITER);
2155 		Adapter->unicst_addr[slot].mac.set = 0;
2156 		Adapter->unicst_avail++;
2157 		rw_exit(&Adapter->chip_lock);
2158 	}
2159 
2160 	return (err);
2161 }
2162 
2163 /*
2164  * e1000g_m_unicst_remove() - removes a MAC address that was added by a
2165  * call to e1000g_m_unicst_add(). The slot number that was returned in
2166  * e1000g_m_unicst_add() is passed in the call to remove the address.
2167  * Returns 0 on success.
2168  */
2169 static int
2170 e1000g_m_unicst_remove(void *arg, mac_addr_slot_t slot)
2171 {
2172 	struct e1000g *Adapter = (struct e1000g *)arg;
2173 	int err;
2174 
2175 	if ((slot <= 0) || (slot >= Adapter->unicst_total))
2176 		return (EINVAL);
2177 
2178 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2179 	if (Adapter->unicst_addr[slot].mac.set == 1) {
2180 		Adapter->unicst_addr[slot].mac.set = 0;
2181 		Adapter->unicst_avail++;
2182 		rw_exit(&Adapter->chip_lock);
2183 
2184 		/* Copy the default address to the passed slot */
2185 		if (err = e1000g_unicst_set(Adapter,
2186 		    Adapter->unicst_addr[0].mac.addr, slot) != 0) {
2187 			rw_enter(&Adapter->chip_lock, RW_WRITER);
2188 			Adapter->unicst_addr[slot].mac.set = 1;
2189 			Adapter->unicst_avail--;
2190 			rw_exit(&Adapter->chip_lock);
2191 		}
2192 		return (err);
2193 	}
2194 	rw_exit(&Adapter->chip_lock);
2195 
2196 	return (EINVAL);
2197 }
2198 
2199 /*
2200  * e1000g_m_unicst_modify() - modifies the value of an address that
2201  * has been added by e1000g_m_unicst_add(). The new address, address
2202  * length and the slot number that was returned in the call to add
2203  * should be passed to e1000g_m_unicst_modify(). mma_flags should be
2204  * set to 0. Returns 0 on success.
2205  */
2206 static int
2207 e1000g_m_unicst_modify(void *arg, mac_multi_addr_t *maddr)
2208 {
2209 	struct e1000g *Adapter = (struct e1000g *)arg;
2210 	mac_addr_slot_t slot;
2211 
2212 	if (mac_unicst_verify(Adapter->mh,
2213 	    maddr->mma_addr, maddr->mma_addrlen) == B_FALSE)
2214 		return (EINVAL);
2215 
2216 	slot = maddr->mma_slot;
2217 
2218 	if ((slot <= 0) || (slot >= Adapter->unicst_total))
2219 		return (EINVAL);
2220 
2221 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2222 	if (Adapter->unicst_addr[slot].mac.set == 1) {
2223 		rw_exit(&Adapter->chip_lock);
2224 
2225 		return (e1000g_unicst_set(Adapter, maddr->mma_addr, slot));
2226 	}
2227 	rw_exit(&Adapter->chip_lock);
2228 
2229 	return (EINVAL);
2230 }
2231 
2232 /*
2233  * e1000g_m_unicst_get() - will get the MAC address and all other
2234  * information related to the address slot passed in mac_multi_addr_t.
2235  * mma_flags should be set to 0 in the call.
2236  * On return, mma_flags can take the following values:
2237  * 1) MMAC_SLOT_UNUSED
2238  * 2) MMAC_SLOT_USED | MMAC_VENDOR_ADDR
2239  * 3) MMAC_SLOT_UNUSED | MMAC_VENDOR_ADDR
2240  * 4) MMAC_SLOT_USED
2241  */
2242 static int
2243 e1000g_m_unicst_get(void *arg, mac_multi_addr_t *maddr)
2244 {
2245 	struct e1000g *Adapter = (struct e1000g *)arg;
2246 	mac_addr_slot_t slot;
2247 
2248 	slot = maddr->mma_slot;
2249 
2250 	if ((slot <= 0) || (slot >= Adapter->unicst_total))
2251 		return (EINVAL);
2252 
2253 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2254 	if (Adapter->unicst_addr[slot].mac.set == 1) {
2255 		bcopy(Adapter->unicst_addr[slot].mac.addr,
2256 		    maddr->mma_addr, ETHERADDRL);
2257 		maddr->mma_flags = MMAC_SLOT_USED;
2258 	} else {
2259 		maddr->mma_flags = MMAC_SLOT_UNUSED;
2260 	}
2261 	rw_exit(&Adapter->chip_lock);
2262 
2263 	return (0);
2264 }
2265 
2266 static int
2267 multicst_add(struct e1000g *Adapter, const uint8_t *multiaddr)
2268 {
2269 	struct e1000_hw *hw = &Adapter->shared;
2270 	unsigned i;
2271 	int res = 0;
2272 
2273 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2274 
2275 	if ((multiaddr[0] & 01) == 0) {
2276 		res = EINVAL;
2277 		goto done;
2278 	}
2279 
2280 	if (Adapter->mcast_count >= MAX_NUM_MULTICAST_ADDRESSES) {
2281 		res = ENOENT;
2282 		goto done;
2283 	}
2284 
2285 	bcopy(multiaddr,
2286 	    &Adapter->mcast_table[Adapter->mcast_count], ETHERADDRL);
2287 	Adapter->mcast_count++;
2288 
2289 	/*
2290 	 * Update the MC table in the hardware
2291 	 */
2292 	e1000g_clear_interrupt(Adapter);
2293 
2294 	e1000g_setup_multicast(Adapter);
2295 
2296 	if ((hw->mac.type == e1000_82542) &&
2297 	    (hw->revision_id == E1000_REVISION_2))
2298 		e1000g_rx_setup(Adapter);
2299 
2300 	e1000g_mask_interrupt(Adapter);
2301 
2302 done:
2303 	rw_exit(&Adapter->chip_lock);
2304 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK) {
2305 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
2306 		res = EIO;
2307 	}
2308 
2309 	return (res);
2310 }
2311 
2312 static int
2313 multicst_remove(struct e1000g *Adapter, const uint8_t *multiaddr)
2314 {
2315 	struct e1000_hw *hw = &Adapter->shared;
2316 	unsigned i;
2317 
2318 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2319 
2320 	for (i = 0; i < Adapter->mcast_count; i++) {
2321 		if (bcmp(multiaddr, &Adapter->mcast_table[i],
2322 		    ETHERADDRL) == 0) {
2323 			for (i++; i < Adapter->mcast_count; i++) {
2324 				Adapter->mcast_table[i - 1] =
2325 				    Adapter->mcast_table[i];
2326 			}
2327 			Adapter->mcast_count--;
2328 			break;
2329 		}
2330 	}
2331 
2332 	/*
2333 	 * Update the MC table in the hardware
2334 	 */
2335 	e1000g_clear_interrupt(Adapter);
2336 
2337 	e1000g_setup_multicast(Adapter);
2338 
2339 	if ((hw->mac.type == e1000_82542) &&
2340 	    (hw->revision_id == E1000_REVISION_2))
2341 		e1000g_rx_setup(Adapter);
2342 
2343 	e1000g_mask_interrupt(Adapter);
2344 
2345 done:
2346 	rw_exit(&Adapter->chip_lock);
2347 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK) {
2348 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
2349 		return (EIO);
2350 	}
2351 
2352 	return (0);
2353 }
2354 
2355 /*
2356  * e1000g_setup_multicast - setup multicast data structures
2357  *
2358  * This routine initializes all of the multicast related structures.
2359  */
2360 void
2361 e1000g_setup_multicast(struct e1000g *Adapter)
2362 {
2363 	uint8_t *mc_addr_list;
2364 	uint32_t mc_addr_count;
2365 	uint32_t rctl;
2366 	struct e1000_hw *hw;
2367 
2368 	hw = &Adapter->shared;
2369 
2370 	/*
2371 	 * The e1000g has the ability to do perfect filtering of 16
2372 	 * addresses. The driver uses one of the e1000g's 16 receive
2373 	 * address registers for its node/network/mac/individual address.
2374 	 * So, we have room for up to 15 multicast addresses in the CAM,
2375 	 * additional MC addresses are handled by the MTA (Multicast Table
2376 	 * Array)
2377 	 */
2378 
2379 	rctl = E1000_READ_REG(hw, E1000_RCTL);
2380 
2381 	mc_addr_list = (uint8_t *)Adapter->mcast_table;
2382 
2383 	if (Adapter->mcast_count > MAX_NUM_MULTICAST_ADDRESSES) {
2384 		E1000G_DEBUGLOG_1(Adapter, CE_WARN,
2385 		    "Adapter requested more than %d MC Addresses.\n",
2386 		    MAX_NUM_MULTICAST_ADDRESSES);
2387 		mc_addr_count = MAX_NUM_MULTICAST_ADDRESSES;
2388 	} else {
2389 		/*
2390 		 * Set the number of MC addresses that we are being
2391 		 * requested to use
2392 		 */
2393 		mc_addr_count = Adapter->mcast_count;
2394 	}
2395 	/*
2396 	 * The Wiseman 2.0 silicon has an errata by which the receiver will
2397 	 * hang  while writing to the receive address registers if the receiver
2398 	 * is not in reset before writing to the registers. Updating the RAR
2399 	 * is done during the setting up of the multicast table, hence the
2400 	 * receiver has to be put in reset before updating the multicast table
2401 	 * and then taken out of reset at the end
2402 	 */
2403 	/*
2404 	 * if WMI was enabled then dis able it before issueing the global
2405 	 * reset to the hardware.
2406 	 */
2407 	/*
2408 	 * Only required for WISEMAN_2_0
2409 	 */
2410 	if ((hw->mac.type == e1000_82542) &&
2411 	    (hw->revision_id == E1000_REVISION_2)) {
2412 		e1000_pci_clear_mwi(hw);
2413 		/*
2414 		 * The e1000g must be in reset before changing any RA
2415 		 * registers. Reset receive unit.  The chip will remain in
2416 		 * the reset state until software explicitly restarts it.
2417 		 */
2418 		E1000_WRITE_REG(hw, E1000_RCTL, E1000_RCTL_RST);
2419 		/* Allow receiver time to go in to reset */
2420 		msec_delay(5);
2421 	}
2422 
2423 	e1000_update_mc_addr_list(hw, mc_addr_list, mc_addr_count,
2424 	    Adapter->unicst_total, hw->mac.rar_entry_count);
2425 
2426 	/*
2427 	 * Only for Wiseman_2_0
2428 	 * If MWI was enabled then re-enable it after issueing (as we
2429 	 * disabled it up there) the receive reset command.
2430 	 * Wainwright does not have a receive reset command and only thing
2431 	 * close to it is global reset which will require tx setup also
2432 	 */
2433 	if ((hw->mac.type == e1000_82542) &&
2434 	    (hw->revision_id == E1000_REVISION_2)) {
2435 		/*
2436 		 * if WMI was enabled then reenable it after issueing the
2437 		 * global or receive reset to the hardware.
2438 		 */
2439 
2440 		/*
2441 		 * Take receiver out of reset
2442 		 * clear E1000_RCTL_RST bit (and all others)
2443 		 */
2444 		E1000_WRITE_REG(hw, E1000_RCTL, 0);
2445 		msec_delay(5);
2446 		if (hw->bus.pci_cmd_word & CMD_MEM_WRT_INVALIDATE)
2447 			e1000_pci_set_mwi(hw);
2448 	}
2449 
2450 	/*
2451 	 * Restore original value
2452 	 */
2453 	E1000_WRITE_REG(hw, E1000_RCTL, rctl);
2454 }
2455 
2456 int
2457 e1000g_m_multicst(void *arg, boolean_t add, const uint8_t *addr)
2458 {
2459 	struct e1000g *Adapter = (struct e1000g *)arg;
2460 
2461 	return ((add) ? multicst_add(Adapter, addr)
2462 	    : multicst_remove(Adapter, addr));
2463 }
2464 
2465 int
2466 e1000g_m_promisc(void *arg, boolean_t on)
2467 {
2468 	struct e1000g *Adapter = (struct e1000g *)arg;
2469 	uint32_t rctl;
2470 
2471 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2472 
2473 	rctl = E1000_READ_REG(&Adapter->shared, E1000_RCTL);
2474 
2475 	if (on)
2476 		rctl |=
2477 		    (E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_BAM);
2478 	else
2479 		rctl &= (~(E1000_RCTL_UPE | E1000_RCTL_MPE));
2480 
2481 	E1000_WRITE_REG(&Adapter->shared, E1000_RCTL, rctl);
2482 
2483 	Adapter->e1000g_promisc = on;
2484 
2485 	rw_exit(&Adapter->chip_lock);
2486 
2487 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK) {
2488 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
2489 		return (EIO);
2490 	}
2491 
2492 	return (0);
2493 }
2494 
2495 static boolean_t
2496 e1000g_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
2497 {
2498 	struct e1000g *Adapter = (struct e1000g *)arg;
2499 	struct e1000_hw *hw = &Adapter->shared;
2500 
2501 	switch (cap) {
2502 	case MAC_CAPAB_HCKSUM: {
2503 		uint32_t *txflags = cap_data;
2504 
2505 		if (Adapter->tx_hcksum_enable)
2506 			*txflags = HCKSUM_IPHDRCKSUM |
2507 			    HCKSUM_INET_PARTIAL;
2508 		else
2509 			return (B_FALSE);
2510 		break;
2511 	}
2512 	case MAC_CAPAB_POLL:
2513 		/*
2514 		 * There's nothing for us to fill in, simply returning
2515 		 * B_TRUE stating that we support polling is sufficient.
2516 		 */
2517 		break;
2518 
2519 	case MAC_CAPAB_MULTIADDRESS: {
2520 		multiaddress_capab_t *mmacp = cap_data;
2521 
2522 		/*
2523 		 * The number of MAC addresses made available by
2524 		 * this capability is one less than the total as
2525 		 * the primary address in slot 0 is counted in
2526 		 * the total.
2527 		 */
2528 		mmacp->maddr_naddr = Adapter->unicst_total - 1;
2529 		mmacp->maddr_naddrfree = Adapter->unicst_avail;
2530 		/* No multiple factory addresses, set mma_flag to 0 */
2531 		mmacp->maddr_flag = 0;
2532 		mmacp->maddr_handle = Adapter;
2533 		mmacp->maddr_add = e1000g_m_unicst_add;
2534 		mmacp->maddr_remove = e1000g_m_unicst_remove;
2535 		mmacp->maddr_modify = e1000g_m_unicst_modify;
2536 		mmacp->maddr_get = e1000g_m_unicst_get;
2537 		mmacp->maddr_reserve = NULL;
2538 		break;
2539 	}
2540 
2541 	case MAC_CAPAB_LSO: {
2542 		mac_capab_lso_t *cap_lso = cap_data;
2543 
2544 		if (Adapter->lso_enable) {
2545 			cap_lso->lso_flags = LSO_TX_BASIC_TCP_IPV4;
2546 			cap_lso->lso_basic_tcp_ipv4.lso_max =
2547 			    E1000_LSO_MAXLEN;
2548 		} else
2549 			return (B_FALSE);
2550 		break;
2551 	}
2552 
2553 	default:
2554 		return (B_FALSE);
2555 	}
2556 	return (B_TRUE);
2557 }
2558 
2559 static boolean_t
2560 e1000g_param_locked(mac_prop_id_t pr_num)
2561 {
2562 	/*
2563 	 * All en_* parameters are locked (read-only) while
2564 	 * the device is in any sort of loopback mode ...
2565 	 */
2566 	switch (pr_num) {
2567 		case MAC_PROP_EN_1000FDX_CAP:
2568 		case MAC_PROP_EN_1000HDX_CAP:
2569 		case MAC_PROP_EN_100FDX_CAP:
2570 		case MAC_PROP_EN_100HDX_CAP:
2571 		case MAC_PROP_EN_10FDX_CAP:
2572 		case MAC_PROP_EN_10HDX_CAP:
2573 		case MAC_PROP_AUTONEG:
2574 		case MAC_PROP_FLOWCTRL:
2575 			return (B_TRUE);
2576 	}
2577 	return (B_FALSE);
2578 }
2579 
2580 /*
2581  * callback function for set/get of properties
2582  */
2583 static int
2584 e1000g_m_setprop(void *arg, const char *pr_name, mac_prop_id_t pr_num,
2585     uint_t pr_valsize, const void *pr_val)
2586 {
2587 	struct e1000g *Adapter = arg;
2588 	struct e1000_mac_info *mac = &Adapter->shared.mac;
2589 	struct e1000_phy_info *phy = &Adapter->shared.phy;
2590 	struct e1000_fc_info *fc = &Adapter->shared.fc;
2591 	int err = 0;
2592 	link_flowctrl_t flowctrl;
2593 	uint32_t cur_mtu, new_mtu;
2594 	uint64_t tmp = 0;
2595 
2596 	rw_enter(&Adapter->chip_lock, RW_WRITER);
2597 	if (Adapter->loopback_mode != E1000G_LB_NONE &&
2598 	    e1000g_param_locked(pr_num)) {
2599 		/*
2600 		 * All en_* parameters are locked (read-only)
2601 		 * while the device is in any sort of loopback mode.
2602 		 */
2603 		rw_exit(&Adapter->chip_lock);
2604 		return (EBUSY);
2605 	}
2606 
2607 	switch (pr_num) {
2608 		case MAC_PROP_EN_1000FDX_CAP:
2609 			Adapter->param_en_1000fdx = *(uint8_t *)pr_val;
2610 			Adapter->param_adv_1000fdx = *(uint8_t *)pr_val;
2611 			goto reset;
2612 		case MAC_PROP_EN_1000HDX_CAP:
2613 			Adapter->param_en_1000hdx = *(uint8_t *)pr_val;
2614 			Adapter->param_adv_1000hdx = *(uint8_t *)pr_val;
2615 			goto reset;
2616 		case MAC_PROP_EN_100FDX_CAP:
2617 			Adapter->param_en_100fdx = *(uint8_t *)pr_val;
2618 			Adapter->param_adv_100fdx = *(uint8_t *)pr_val;
2619 			goto reset;
2620 		case MAC_PROP_EN_100HDX_CAP:
2621 			Adapter->param_en_100hdx = *(uint8_t *)pr_val;
2622 			Adapter->param_adv_100hdx = *(uint8_t *)pr_val;
2623 			goto reset;
2624 		case MAC_PROP_EN_10FDX_CAP:
2625 			Adapter->param_en_10fdx = *(uint8_t *)pr_val;
2626 			Adapter->param_adv_10fdx = *(uint8_t *)pr_val;
2627 			goto reset;
2628 		case MAC_PROP_EN_10HDX_CAP:
2629 			Adapter->param_en_10hdx = *(uint8_t *)pr_val;
2630 			Adapter->param_adv_10hdx = *(uint8_t *)pr_val;
2631 			goto reset;
2632 		case MAC_PROP_AUTONEG:
2633 			Adapter->param_adv_autoneg = *(uint8_t *)pr_val;
2634 			goto reset;
2635 		case MAC_PROP_FLOWCTRL:
2636 			fc->send_xon = B_TRUE;
2637 			bcopy(pr_val, &flowctrl, sizeof (flowctrl));
2638 
2639 			switch (flowctrl) {
2640 			default:
2641 				err = EINVAL;
2642 				break;
2643 			case LINK_FLOWCTRL_NONE:
2644 				fc->type = e1000_fc_none;
2645 				break;
2646 			case LINK_FLOWCTRL_RX:
2647 				fc->type = e1000_fc_rx_pause;
2648 				break;
2649 			case LINK_FLOWCTRL_TX:
2650 				fc->type = e1000_fc_tx_pause;
2651 				break;
2652 			case LINK_FLOWCTRL_BI:
2653 				fc->type = e1000_fc_full;
2654 				break;
2655 			}
2656 reset:
2657 			if (err == 0) {
2658 				if (e1000g_reset_link(Adapter) != DDI_SUCCESS)
2659 					err = EINVAL;
2660 			}
2661 			break;
2662 		case MAC_PROP_ADV_1000FDX_CAP:
2663 		case MAC_PROP_ADV_1000HDX_CAP:
2664 		case MAC_PROP_ADV_100FDX_CAP:
2665 		case MAC_PROP_ADV_100HDX_CAP:
2666 		case MAC_PROP_ADV_10FDX_CAP:
2667 		case MAC_PROP_ADV_10HDX_CAP:
2668 		case MAC_PROP_STATUS:
2669 		case MAC_PROP_SPEED:
2670 		case MAC_PROP_DUPLEX:
2671 			err = ENOTSUP; /* read-only prop. Can't set this. */
2672 			break;
2673 		case MAC_PROP_MTU:
2674 			cur_mtu = Adapter->default_mtu;
2675 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
2676 			if (new_mtu == cur_mtu) {
2677 				err = 0;
2678 				break;
2679 			}
2680 
2681 			tmp = new_mtu + sizeof (struct ether_vlan_header) +
2682 			    ETHERFCSL;
2683 			if ((tmp < DEFAULT_FRAME_SIZE) ||
2684 			    (tmp > MAXIMUM_FRAME_SIZE)) {
2685 				err = EINVAL;
2686 				break;
2687 			}
2688 
2689 			/* ich8 doed not support jumbo frames */
2690 			if ((mac->type == e1000_ich8lan) &&
2691 			    (tmp > DEFAULT_FRAME_SIZE)) {
2692 				err = EINVAL;
2693 				break;
2694 			}
2695 			/* ich9 does not do jumbo frames on one phy type */
2696 			if ((mac->type == e1000_ich9lan) &&
2697 			    (phy->type == e1000_phy_ife) &&
2698 			    (tmp > DEFAULT_FRAME_SIZE)) {
2699 				err = EINVAL;
2700 				break;
2701 			}
2702 			if (Adapter->chip_state != E1000G_STOP) {
2703 				err = EBUSY;
2704 				break;
2705 			}
2706 
2707 			err = mac_maxsdu_update(Adapter->mh, new_mtu);
2708 			if (err == 0) {
2709 				Adapter->max_frame_size = tmp;
2710 				Adapter->default_mtu = new_mtu;
2711 				e1000g_set_bufsize(Adapter);
2712 			}
2713 			break;
2714 		case MAC_PROP_PRIVATE:
2715 			err = e1000g_set_priv_prop(Adapter, pr_name,
2716 			    pr_valsize, pr_val);
2717 			break;
2718 		default:
2719 			err = ENOTSUP;
2720 			break;
2721 	}
2722 	rw_exit(&Adapter->chip_lock);
2723 	return (err);
2724 }
2725 
2726 static int
2727 e1000g_m_getprop(void *arg, const char *pr_name, mac_prop_id_t pr_num,
2728     uint_t pr_flags, uint_t pr_valsize, void *pr_val)
2729 {
2730 	struct e1000g *Adapter = arg;
2731 	struct e1000_mac_info *mac = &Adapter->shared.mac;
2732 	struct e1000_fc_info *fc = &Adapter->shared.fc;
2733 	int err = 0;
2734 	link_flowctrl_t flowctrl;
2735 	uint64_t tmp = 0;
2736 
2737 	if (pr_valsize == 0)
2738 		return (EINVAL);
2739 
2740 	bzero(pr_val, pr_valsize);
2741 	if ((pr_flags & MAC_PROP_DEFAULT) && (pr_num != MAC_PROP_PRIVATE)) {
2742 		return (e1000g_get_def_val(Adapter, pr_num,
2743 		    pr_valsize, pr_val));
2744 	}
2745 
2746 	switch (pr_num) {
2747 		case MAC_PROP_DUPLEX:
2748 			if (pr_valsize >= sizeof (link_duplex_t)) {
2749 				bcopy(&Adapter->link_duplex, pr_val,
2750 				    sizeof (link_duplex_t));
2751 			} else
2752 				err = EINVAL;
2753 			break;
2754 		case MAC_PROP_SPEED:
2755 			if (pr_valsize >= sizeof (uint64_t)) {
2756 				tmp = Adapter->link_speed * 1000000ull;
2757 				bcopy(&tmp, pr_val, sizeof (tmp));
2758 			} else
2759 				err = EINVAL;
2760 			break;
2761 		case MAC_PROP_AUTONEG:
2762 			*(uint8_t *)pr_val = Adapter->param_adv_autoneg;
2763 			break;
2764 		case MAC_PROP_FLOWCTRL:
2765 			if (pr_valsize >= sizeof (link_flowctrl_t)) {
2766 				switch (fc->type) {
2767 					case e1000_fc_none:
2768 						flowctrl = LINK_FLOWCTRL_NONE;
2769 						break;
2770 					case e1000_fc_rx_pause:
2771 						flowctrl = LINK_FLOWCTRL_RX;
2772 						break;
2773 					case e1000_fc_tx_pause:
2774 						flowctrl = LINK_FLOWCTRL_TX;
2775 						break;
2776 					case e1000_fc_full:
2777 						flowctrl = LINK_FLOWCTRL_BI;
2778 						break;
2779 				}
2780 				bcopy(&flowctrl, pr_val, sizeof (flowctrl));
2781 			} else
2782 				err = EINVAL;
2783 			break;
2784 		case MAC_PROP_ADV_1000FDX_CAP:
2785 			*(uint8_t *)pr_val = Adapter->param_adv_1000fdx;
2786 			break;
2787 		case MAC_PROP_EN_1000FDX_CAP:
2788 			*(uint8_t *)pr_val = Adapter->param_en_1000fdx;
2789 			break;
2790 		case MAC_PROP_ADV_1000HDX_CAP:
2791 			*(uint8_t *)pr_val = Adapter->param_adv_1000hdx;
2792 			break;
2793 		case MAC_PROP_EN_1000HDX_CAP:
2794 			*(uint8_t *)pr_val = Adapter->param_en_1000hdx;
2795 			break;
2796 		case MAC_PROP_ADV_100FDX_CAP:
2797 			*(uint8_t *)pr_val = Adapter->param_adv_100fdx;
2798 			break;
2799 		case MAC_PROP_EN_100FDX_CAP:
2800 			*(uint8_t *)pr_val = Adapter->param_en_100fdx;
2801 			break;
2802 		case MAC_PROP_ADV_100HDX_CAP:
2803 			*(uint8_t *)pr_val = Adapter->param_adv_100hdx;
2804 			break;
2805 		case MAC_PROP_EN_100HDX_CAP:
2806 			*(uint8_t *)pr_val = Adapter->param_en_100hdx;
2807 			break;
2808 		case MAC_PROP_ADV_10FDX_CAP:
2809 			*(uint8_t *)pr_val = Adapter->param_adv_10fdx;
2810 			break;
2811 		case MAC_PROP_EN_10FDX_CAP:
2812 			*(uint8_t *)pr_val = Adapter->param_en_10fdx;
2813 			break;
2814 		case MAC_PROP_ADV_10HDX_CAP:
2815 			*(uint8_t *)pr_val = Adapter->param_adv_10hdx;
2816 			break;
2817 		case MAC_PROP_EN_10HDX_CAP:
2818 			*(uint8_t *)pr_val = Adapter->param_en_10hdx;
2819 			break;
2820 		case MAC_PROP_ADV_100T4_CAP:
2821 		case MAC_PROP_EN_100T4_CAP:
2822 			*(uint8_t *)pr_val = Adapter->param_adv_100t4;
2823 			break;
2824 		case MAC_PROP_PRIVATE:
2825 			err = e1000g_get_priv_prop(Adapter, pr_name,
2826 			    pr_flags, pr_valsize, pr_val);
2827 			break;
2828 		default:
2829 			err = ENOTSUP;
2830 			break;
2831 	}
2832 	return (err);
2833 }
2834 
2835 /* ARGUSED */
2836 static int
2837 e1000g_set_priv_prop(struct e1000g *Adapter, const char *pr_name,
2838     uint_t pr_valsize, const void *pr_val)
2839 {
2840 	int err = 0;
2841 	long result;
2842 	struct e1000_hw *hw = &Adapter->shared;
2843 
2844 	if (strcmp(pr_name, "_tx_bcopy_threshold") == 0) {
2845 		if (pr_val == NULL) {
2846 			err = EINVAL;
2847 			return (err);
2848 		}
2849 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2850 		if (result < MIN_TX_BCOPY_THRESHOLD ||
2851 		    result > MAX_TX_BCOPY_THRESHOLD)
2852 			err = EINVAL;
2853 		else {
2854 			Adapter->tx_bcopy_thresh = (uint32_t)result;
2855 		}
2856 		return (err);
2857 	}
2858 	if (strcmp(pr_name, "_tx_interrupt_enable") == 0) {
2859 		if (pr_val == NULL) {
2860 			err = EINVAL;
2861 			return (err);
2862 		}
2863 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2864 		if (result < 0 || result > 1)
2865 			err = EINVAL;
2866 		else {
2867 			Adapter->tx_intr_enable = (result == 1) ?
2868 			    B_TRUE: B_FALSE;
2869 			if (Adapter->tx_intr_enable)
2870 				e1000g_mask_tx_interrupt(Adapter);
2871 			else
2872 				e1000g_clear_tx_interrupt(Adapter);
2873 			if (e1000g_check_acc_handle(
2874 			    Adapter->osdep.reg_handle) != DDI_FM_OK)
2875 				ddi_fm_service_impact(Adapter->dip,
2876 				    DDI_SERVICE_DEGRADED);
2877 		}
2878 		return (err);
2879 	}
2880 	if (strcmp(pr_name, "_tx_intr_delay") == 0) {
2881 		if (pr_val == NULL) {
2882 			err = EINVAL;
2883 			return (err);
2884 		}
2885 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2886 		if (result < MIN_TX_INTR_DELAY ||
2887 		    result > MAX_TX_INTR_DELAY)
2888 			err = EINVAL;
2889 		else {
2890 			Adapter->tx_intr_delay = (uint32_t)result;
2891 			E1000_WRITE_REG(hw, E1000_TIDV, Adapter->tx_intr_delay);
2892 			if (e1000g_check_acc_handle(
2893 			    Adapter->osdep.reg_handle) != DDI_FM_OK)
2894 				ddi_fm_service_impact(Adapter->dip,
2895 				    DDI_SERVICE_DEGRADED);
2896 		}
2897 		return (err);
2898 	}
2899 	if (strcmp(pr_name, "_tx_intr_abs_delay") == 0) {
2900 		if (pr_val == NULL) {
2901 			err = EINVAL;
2902 			return (err);
2903 		}
2904 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2905 		if (result < MIN_TX_INTR_ABS_DELAY ||
2906 		    result > MAX_TX_INTR_ABS_DELAY)
2907 			err = EINVAL;
2908 		else {
2909 			Adapter->tx_intr_abs_delay = (uint32_t)result;
2910 			E1000_WRITE_REG(hw, E1000_TADV,
2911 			    Adapter->tx_intr_abs_delay);
2912 			if (e1000g_check_acc_handle(
2913 			    Adapter->osdep.reg_handle) != DDI_FM_OK)
2914 				ddi_fm_service_impact(Adapter->dip,
2915 				    DDI_SERVICE_DEGRADED);
2916 		}
2917 		return (err);
2918 	}
2919 	if (strcmp(pr_name, "_rx_bcopy_threshold") == 0) {
2920 		if (pr_val == NULL) {
2921 			err = EINVAL;
2922 			return (err);
2923 		}
2924 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2925 		if (result < MIN_RX_BCOPY_THRESHOLD ||
2926 		    result > MAX_RX_BCOPY_THRESHOLD)
2927 			err = EINVAL;
2928 		else
2929 			Adapter->rx_bcopy_thresh = (uint32_t)result;
2930 		return (err);
2931 	}
2932 	if (strcmp(pr_name, "_max_num_rcv_packets") == 0) {
2933 		if (pr_val == NULL) {
2934 			err = EINVAL;
2935 			return (err);
2936 		}
2937 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2938 		if (result < MIN_RX_LIMIT_ON_INTR ||
2939 		    result > MAX_RX_LIMIT_ON_INTR)
2940 			err = EINVAL;
2941 		else
2942 			Adapter->rx_limit_onintr = (uint32_t)result;
2943 		return (err);
2944 	}
2945 	if (strcmp(pr_name, "_rx_intr_delay") == 0) {
2946 		if (pr_val == NULL) {
2947 			err = EINVAL;
2948 			return (err);
2949 		}
2950 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2951 		if (result < MIN_RX_INTR_DELAY ||
2952 		    result > MAX_RX_INTR_DELAY)
2953 			err = EINVAL;
2954 		else {
2955 			Adapter->rx_intr_delay = (uint32_t)result;
2956 			E1000_WRITE_REG(hw, E1000_RDTR, Adapter->rx_intr_delay);
2957 			if (e1000g_check_acc_handle(
2958 			    Adapter->osdep.reg_handle) != DDI_FM_OK)
2959 				ddi_fm_service_impact(Adapter->dip,
2960 				    DDI_SERVICE_DEGRADED);
2961 		}
2962 		return (err);
2963 	}
2964 	if (strcmp(pr_name, "_rx_intr_abs_delay") == 0) {
2965 		if (pr_val == NULL) {
2966 			err = EINVAL;
2967 			return (err);
2968 		}
2969 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2970 		if (result < MIN_RX_INTR_ABS_DELAY ||
2971 		    result > MAX_RX_INTR_ABS_DELAY)
2972 			err = EINVAL;
2973 		else {
2974 			Adapter->rx_intr_abs_delay = (uint32_t)result;
2975 			E1000_WRITE_REG(hw, E1000_RADV,
2976 			    Adapter->rx_intr_abs_delay);
2977 			if (e1000g_check_acc_handle(
2978 			    Adapter->osdep.reg_handle) != DDI_FM_OK)
2979 				ddi_fm_service_impact(Adapter->dip,
2980 				    DDI_SERVICE_DEGRADED);
2981 		}
2982 		return (err);
2983 	}
2984 	if (strcmp(pr_name, "_intr_throttling_rate") == 0) {
2985 		if (pr_val == NULL) {
2986 			err = EINVAL;
2987 			return (err);
2988 		}
2989 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
2990 		if (result < MIN_INTR_THROTTLING ||
2991 		    result > MAX_INTR_THROTTLING)
2992 			err = EINVAL;
2993 		else {
2994 			if (hw->mac.type >= e1000_82540) {
2995 				Adapter->intr_throttling_rate =
2996 				    (uint32_t)result;
2997 				E1000_WRITE_REG(hw, E1000_ITR,
2998 				    Adapter->intr_throttling_rate);
2999 				if (e1000g_check_acc_handle(
3000 				    Adapter->osdep.reg_handle) != DDI_FM_OK)
3001 					ddi_fm_service_impact(Adapter->dip,
3002 					    DDI_SERVICE_DEGRADED);
3003 			} else
3004 				err = EINVAL;
3005 		}
3006 		return (err);
3007 	}
3008 	if (strcmp(pr_name, "_intr_adaptive") == 0) {
3009 		if (pr_val == NULL) {
3010 			err = EINVAL;
3011 			return (err);
3012 		}
3013 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
3014 		if (result < 0 || result > 1)
3015 			err = EINVAL;
3016 		else {
3017 			if (hw->mac.type >= e1000_82540) {
3018 				Adapter->intr_adaptive = (result == 1) ?
3019 				    B_TRUE : B_FALSE;
3020 			} else {
3021 				err = EINVAL;
3022 			}
3023 		}
3024 		return (err);
3025 	}
3026 	if (strcmp(pr_name, "_tx_recycle_thresh") == 0) {
3027 		if (pr_val == NULL) {
3028 			err = EINVAL;
3029 			return (err);
3030 		}
3031 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
3032 		if (result < MIN_TX_RECYCLE_THRESHOLD ||
3033 		    result > MAX_TX_RECYCLE_THRESHOLD)
3034 			err = EINVAL;
3035 		else
3036 			Adapter->tx_recycle_thresh = (uint32_t)result;
3037 		return (err);
3038 	}
3039 	if (strcmp(pr_name, "_tx_recycle_num") == 0) {
3040 		if (pr_val == NULL) {
3041 			err = EINVAL;
3042 			return (err);
3043 		}
3044 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
3045 		if (result < MIN_TX_RECYCLE_NUM ||
3046 		    result > MAX_TX_RECYCLE_NUM)
3047 			err = EINVAL;
3048 		else
3049 			Adapter->tx_recycle_num = (uint32_t)result;
3050 		return (err);
3051 	}
3052 	return (ENOTSUP);
3053 }
3054 
3055 static int
3056 e1000g_get_priv_prop(struct e1000g *Adapter, const char *pr_name,
3057     uint_t pr_flags, uint_t pr_valsize, void *pr_val)
3058 {
3059 	char valstr[MAXNAMELEN];
3060 	int err = ENOTSUP;
3061 	uint_t strsize;
3062 	boolean_t is_default = (pr_flags & MAC_PROP_DEFAULT);
3063 	int value;
3064 
3065 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
3066 		if (is_default)
3067 			goto done;
3068 		value = Adapter->param_adv_pause;
3069 		err = 0;
3070 		goto done;
3071 	}
3072 	if (strcmp(pr_name, "_adv_asym_pause_cap") == 0) {
3073 		if (is_default)
3074 			goto done;
3075 		value = Adapter->param_adv_asym_pause;
3076 		err = 0;
3077 		goto done;
3078 	}
3079 	if (strcmp(pr_name, "_tx_bcopy_threshold") == 0) {
3080 		value = (is_default ? DEFAULT_TX_BCOPY_THRESHOLD :
3081 		    Adapter->tx_bcopy_thresh);
3082 		err = 0;
3083 		goto done;
3084 	}
3085 	if (strcmp(pr_name, "_tx_interrupt_enable") == 0) {
3086 		value = (is_default ? DEFAULT_TX_INTR_ENABLE :
3087 		    Adapter->tx_intr_enable);
3088 		err = 0;
3089 		goto done;
3090 	}
3091 	if (strcmp(pr_name, "_tx_intr_delay") == 0) {
3092 		value = (is_default ? DEFAULT_TX_INTR_DELAY :
3093 		    Adapter->tx_intr_delay);
3094 		err = 0;
3095 		goto done;
3096 	}
3097 	if (strcmp(pr_name, "_tx_intr_abs_delay") == 0) {
3098 		value = (is_default ? DEFAULT_TX_INTR_ABS_DELAY :
3099 		    Adapter->tx_intr_abs_delay);
3100 		err = 0;
3101 		goto done;
3102 	}
3103 	if (strcmp(pr_name, "_rx_bcopy_threshold") == 0) {
3104 		value = (is_default ? DEFAULT_RX_BCOPY_THRESHOLD :
3105 		    Adapter->rx_bcopy_thresh);
3106 		err = 0;
3107 		goto done;
3108 	}
3109 	if (strcmp(pr_name, "_max_num_rcv_packets") == 0) {
3110 		value = (is_default ? DEFAULT_RX_LIMIT_ON_INTR :
3111 		    Adapter->rx_limit_onintr);
3112 		err = 0;
3113 		goto done;
3114 	}
3115 	if (strcmp(pr_name, "_rx_intr_delay") == 0) {
3116 		value = (is_default ? DEFAULT_RX_INTR_DELAY :
3117 		    Adapter->rx_intr_delay);
3118 		err = 0;
3119 		goto done;
3120 	}
3121 	if (strcmp(pr_name, "_rx_intr_abs_delay") == 0) {
3122 		value = (is_default ? DEFAULT_RX_INTR_ABS_DELAY :
3123 		    Adapter->rx_intr_abs_delay);
3124 		err = 0;
3125 		goto done;
3126 	}
3127 	if (strcmp(pr_name, "_intr_throttling_rate") == 0) {
3128 		value = (is_default ? DEFAULT_INTR_THROTTLING :
3129 		    Adapter->intr_throttling_rate);
3130 		err = 0;
3131 		goto done;
3132 	}
3133 	if (strcmp(pr_name, "_intr_adaptive") == 0) {
3134 		value = (is_default ? 1 : Adapter->intr_adaptive);
3135 		err = 0;
3136 		goto done;
3137 	}
3138 	if (strcmp(pr_name, "_tx_recycle_thresh") == 0) {
3139 		value = (is_default ? DEFAULT_TX_RECYCLE_THRESHOLD :
3140 		    Adapter->tx_recycle_thresh);
3141 		err = 0;
3142 		goto done;
3143 	}
3144 	if (strcmp(pr_name, "_tx_recycle_num") == 0) {
3145 		value = (is_default ? DEFAULT_TX_RECYCLE_NUM :
3146 		    Adapter->tx_recycle_num);
3147 		err = 0;
3148 		goto done;
3149 	}
3150 done:
3151 	if (err == 0) {
3152 		(void) snprintf(pr_val, pr_valsize, "%d", value);
3153 	}
3154 	return (err);
3155 }
3156 
3157 /*
3158  * e1000g_get_conf - get configurations set in e1000g.conf
3159  * This routine gets user-configured values out of the configuration
3160  * file e1000g.conf.
3161  *
3162  * For each configurable value, there is a minimum, a maximum, and a
3163  * default.
3164  * If user does not configure a value, use the default.
3165  * If user configures below the minimum, use the minumum.
3166  * If user configures above the maximum, use the maxumum.
3167  */
3168 static void
3169 e1000g_get_conf(struct e1000g *Adapter)
3170 {
3171 	struct e1000_hw *hw = &Adapter->shared;
3172 	boolean_t tbi_compatibility = B_FALSE;
3173 
3174 	/*
3175 	 * get each configurable property from e1000g.conf
3176 	 */
3177 
3178 	/*
3179 	 * NumTxDescriptors
3180 	 */
3181 	Adapter->tx_desc_num =
3182 	    e1000g_get_prop(Adapter, "NumTxDescriptors",
3183 	    MIN_NUM_TX_DESCRIPTOR, MAX_NUM_TX_DESCRIPTOR,
3184 	    DEFAULT_NUM_TX_DESCRIPTOR);
3185 
3186 	/*
3187 	 * NumRxDescriptors
3188 	 */
3189 	Adapter->rx_desc_num =
3190 	    e1000g_get_prop(Adapter, "NumRxDescriptors",
3191 	    MIN_NUM_RX_DESCRIPTOR, MAX_NUM_RX_DESCRIPTOR,
3192 	    DEFAULT_NUM_RX_DESCRIPTOR);
3193 
3194 	/*
3195 	 * NumRxFreeList
3196 	 */
3197 	Adapter->rx_freelist_num =
3198 	    e1000g_get_prop(Adapter, "NumRxFreeList",
3199 	    MIN_NUM_RX_FREELIST, MAX_NUM_RX_FREELIST,
3200 	    DEFAULT_NUM_RX_FREELIST);
3201 
3202 	/*
3203 	 * NumTxPacketList
3204 	 */
3205 	Adapter->tx_freelist_num =
3206 	    e1000g_get_prop(Adapter, "NumTxPacketList",
3207 	    MIN_NUM_TX_FREELIST, MAX_NUM_TX_FREELIST,
3208 	    DEFAULT_NUM_TX_FREELIST);
3209 
3210 	/*
3211 	 * FlowControl
3212 	 */
3213 	hw->fc.send_xon = B_TRUE;
3214 	hw->fc.type =
3215 	    e1000g_get_prop(Adapter, "FlowControl",
3216 	    e1000_fc_none, 4, DEFAULT_FLOW_CONTROL);
3217 	/* 4 is the setting that says "let the eeprom decide" */
3218 	if (hw->fc.type == 4)
3219 		hw->fc.type = e1000_fc_default;
3220 
3221 	/*
3222 	 * Max Num Receive Packets on Interrupt
3223 	 */
3224 	Adapter->rx_limit_onintr =
3225 	    e1000g_get_prop(Adapter, "MaxNumReceivePackets",
3226 	    MIN_RX_LIMIT_ON_INTR, MAX_RX_LIMIT_ON_INTR,
3227 	    DEFAULT_RX_LIMIT_ON_INTR);
3228 
3229 	/*
3230 	 * PHY master slave setting
3231 	 */
3232 	hw->phy.ms_type =
3233 	    e1000g_get_prop(Adapter, "SetMasterSlave",
3234 	    e1000_ms_hw_default, e1000_ms_auto,
3235 	    e1000_ms_hw_default);
3236 
3237 	/*
3238 	 * Parameter which controls TBI mode workaround, which is only
3239 	 * needed on certain switches such as Cisco 6500/Foundry
3240 	 */
3241 	tbi_compatibility =
3242 	    e1000g_get_prop(Adapter, "TbiCompatibilityEnable",
3243 	    0, 1, DEFAULT_TBI_COMPAT_ENABLE);
3244 	e1000_set_tbi_compatibility_82543(hw, tbi_compatibility);
3245 
3246 	/*
3247 	 * MSI Enable
3248 	 */
3249 	Adapter->msi_enable =
3250 	    e1000g_get_prop(Adapter, "MSIEnable",
3251 	    0, 1, DEFAULT_MSI_ENABLE);
3252 
3253 	/*
3254 	 * Interrupt Throttling Rate
3255 	 */
3256 	Adapter->intr_throttling_rate =
3257 	    e1000g_get_prop(Adapter, "intr_throttling_rate",
3258 	    MIN_INTR_THROTTLING, MAX_INTR_THROTTLING,
3259 	    DEFAULT_INTR_THROTTLING);
3260 
3261 	/*
3262 	 * Adaptive Interrupt Blanking Enable/Disable
3263 	 * It is enabled by default
3264 	 */
3265 	Adapter->intr_adaptive =
3266 	    (e1000g_get_prop(Adapter, "intr_adaptive", 0, 1, 1) == 1) ?
3267 	    B_TRUE : B_FALSE;
3268 
3269 	/*
3270 	 * Tx recycle threshold
3271 	 */
3272 	Adapter->tx_recycle_thresh =
3273 	    e1000g_get_prop(Adapter, "tx_recycle_thresh",
3274 	    MIN_TX_RECYCLE_THRESHOLD, MAX_TX_RECYCLE_THRESHOLD,
3275 	    DEFAULT_TX_RECYCLE_THRESHOLD);
3276 
3277 	/*
3278 	 * Tx recycle descriptor number
3279 	 */
3280 	Adapter->tx_recycle_num =
3281 	    e1000g_get_prop(Adapter, "tx_recycle_num",
3282 	    MIN_TX_RECYCLE_NUM, MAX_TX_RECYCLE_NUM,
3283 	    DEFAULT_TX_RECYCLE_NUM);
3284 
3285 	/*
3286 	 * Hardware checksum enable/disable parameter
3287 	 */
3288 	Adapter->tx_hcksum_enable =
3289 	    e1000g_get_prop(Adapter, "tx_hcksum_enable",
3290 	    0, 1, DEFAULT_TX_HCKSUM_ENABLE);
3291 	/*
3292 	 * Checksum on/off selection via global parameters.
3293 	 *
3294 	 * If the chip is flagged as not capable of (correctly)
3295 	 * handling checksumming, we don't enable it on either
3296 	 * Rx or Tx side.  Otherwise, we take this chip's settings
3297 	 * from the patchable global defaults.
3298 	 *
3299 	 * We advertise our capabilities only if TX offload is
3300 	 * enabled.  On receive, the stack will accept checksummed
3301 	 * packets anyway, even if we haven't said we can deliver
3302 	 * them.
3303 	 */
3304 	switch (hw->mac.type) {
3305 		case e1000_82540:
3306 		case e1000_82544:
3307 		case e1000_82545:
3308 		case e1000_82545_rev_3:
3309 		case e1000_82546:
3310 		case e1000_82546_rev_3:
3311 		case e1000_82571:
3312 		case e1000_82572:
3313 		case e1000_82573:
3314 		case e1000_80003es2lan:
3315 			break;
3316 		/*
3317 		 * For the following Intel PRO/1000 chipsets, we have not
3318 		 * tested the hardware checksum offload capability, so we
3319 		 * disable the capability for them.
3320 		 *	e1000_82542,
3321 		 *	e1000_82543,
3322 		 *	e1000_82541,
3323 		 *	e1000_82541_rev_2,
3324 		 *	e1000_82547,
3325 		 *	e1000_82547_rev_2,
3326 		 */
3327 		default:
3328 			Adapter->tx_hcksum_enable = B_FALSE;
3329 	}
3330 
3331 	/*
3332 	 * Large Send Offloading(LSO) Enable/Disable
3333 	 * If the tx hardware checksum is not enabled, LSO should be
3334 	 * disabled.
3335 	 */
3336 	Adapter->lso_enable =
3337 	    e1000g_get_prop(Adapter, "lso_enable",
3338 	    0, 1, DEFAULT_LSO_ENABLE);
3339 
3340 	switch (hw->mac.type) {
3341 		case e1000_82546:
3342 		case e1000_82546_rev_3:
3343 			if (Adapter->lso_enable)
3344 				Adapter->lso_premature_issue = B_TRUE;
3345 		case e1000_82571:
3346 		case e1000_82572:
3347 		case e1000_82573:
3348 			break;
3349 		default:
3350 			Adapter->lso_enable = B_FALSE;
3351 	}
3352 
3353 	if (!Adapter->tx_hcksum_enable) {
3354 		Adapter->lso_premature_issue = B_FALSE;
3355 		Adapter->lso_enable = B_FALSE;
3356 	}
3357 }
3358 
3359 /*
3360  * e1000g_get_prop - routine to read properties
3361  *
3362  * Get a user-configure property value out of the configuration
3363  * file e1000g.conf.
3364  *
3365  * Caller provides name of the property, a default value, a minimum
3366  * value, and a maximum value.
3367  *
3368  * Return configured value of the property, with default, minimum and
3369  * maximum properly applied.
3370  */
3371 static int
3372 e1000g_get_prop(struct e1000g *Adapter,	/* point to per-adapter structure */
3373     char *propname,		/* name of the property */
3374     int minval,			/* minimum acceptable value */
3375     int maxval,			/* maximim acceptable value */
3376     int defval)			/* default value */
3377 {
3378 	int propval;		/* value returned for requested property */
3379 	int *props;		/* point to array of properties returned */
3380 	uint_t nprops;		/* number of property value returned */
3381 
3382 	/*
3383 	 * get the array of properties from the config file
3384 	 */
3385 	if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, Adapter->dip,
3386 	    DDI_PROP_DONTPASS, propname, &props, &nprops) == DDI_PROP_SUCCESS) {
3387 		/* got some properties, test if we got enough */
3388 		if (Adapter->instance < nprops) {
3389 			propval = props[Adapter->instance];
3390 		} else {
3391 			/* not enough properties configured */
3392 			propval = defval;
3393 			E1000G_DEBUGLOG_2(Adapter, E1000G_INFO_LEVEL,
3394 			    "Not Enough %s values found in e1000g.conf"
3395 			    " - set to %d\n",
3396 			    propname, propval);
3397 		}
3398 
3399 		/* free memory allocated for properties */
3400 		ddi_prop_free(props);
3401 
3402 	} else {
3403 		propval = defval;
3404 	}
3405 
3406 	/*
3407 	 * enforce limits
3408 	 */
3409 	if (propval > maxval) {
3410 		propval = maxval;
3411 		E1000G_DEBUGLOG_2(Adapter, E1000G_INFO_LEVEL,
3412 		    "Too High %s value in e1000g.conf - set to %d\n",
3413 		    propname, propval);
3414 	}
3415 
3416 	if (propval < minval) {
3417 		propval = minval;
3418 		E1000G_DEBUGLOG_2(Adapter, E1000G_INFO_LEVEL,
3419 		    "Too Low %s value in e1000g.conf - set to %d\n",
3420 		    propname, propval);
3421 	}
3422 
3423 	return (propval);
3424 }
3425 
3426 static boolean_t
3427 e1000g_link_check(struct e1000g *Adapter)
3428 {
3429 	uint16_t speed, duplex, phydata;
3430 	boolean_t link_changed = B_FALSE;
3431 	struct e1000_hw *hw;
3432 	uint32_t reg_tarc;
3433 
3434 	hw = &Adapter->shared;
3435 
3436 	if (e1000g_link_up(Adapter)) {
3437 		/*
3438 		 * The Link is up, check whether it was marked as down earlier
3439 		 */
3440 		if (Adapter->link_state != LINK_STATE_UP) {
3441 			e1000_get_speed_and_duplex(hw, &speed, &duplex);
3442 			Adapter->link_speed = speed;
3443 			Adapter->link_duplex = duplex;
3444 			Adapter->link_state = LINK_STATE_UP;
3445 			link_changed = B_TRUE;
3446 
3447 			Adapter->tx_link_down_timeout = 0;
3448 
3449 			if ((hw->mac.type == e1000_82571) ||
3450 			    (hw->mac.type == e1000_82572)) {
3451 				reg_tarc = E1000_READ_REG(hw, E1000_TARC(0));
3452 				if (speed == SPEED_1000)
3453 					reg_tarc |= (1 << 21);
3454 				else
3455 					reg_tarc &= ~(1 << 21);
3456 				E1000_WRITE_REG(hw, E1000_TARC(0), reg_tarc);
3457 			}
3458 		}
3459 		Adapter->smartspeed = 0;
3460 	} else {
3461 		if (Adapter->link_state != LINK_STATE_DOWN) {
3462 			Adapter->link_speed = 0;
3463 			Adapter->link_duplex = 0;
3464 			Adapter->link_state = LINK_STATE_DOWN;
3465 			link_changed = B_TRUE;
3466 
3467 			/*
3468 			 * SmartSpeed workaround for Tabor/TanaX, When the
3469 			 * driver loses link disable auto master/slave
3470 			 * resolution.
3471 			 */
3472 			if (hw->phy.type == e1000_phy_igp) {
3473 				e1000_read_phy_reg(hw,
3474 				    PHY_1000T_CTRL, &phydata);
3475 				phydata |= CR_1000T_MS_ENABLE;
3476 				e1000_write_phy_reg(hw,
3477 				    PHY_1000T_CTRL, phydata);
3478 			}
3479 		} else {
3480 			e1000g_smartspeed(Adapter);
3481 		}
3482 
3483 		if (Adapter->chip_state == E1000G_START) {
3484 			if (Adapter->tx_link_down_timeout <
3485 			    MAX_TX_LINK_DOWN_TIMEOUT) {
3486 				Adapter->tx_link_down_timeout++;
3487 			} else if (Adapter->tx_link_down_timeout ==
3488 			    MAX_TX_LINK_DOWN_TIMEOUT) {
3489 				e1000g_tx_clean(Adapter);
3490 				Adapter->tx_link_down_timeout++;
3491 			}
3492 		}
3493 	}
3494 
3495 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK)
3496 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
3497 
3498 	return (link_changed);
3499 }
3500 
3501 /*
3502  * e1000g_reset_link - Using the link properties to setup the link
3503  */
3504 int
3505 e1000g_reset_link(struct e1000g *Adapter)
3506 {
3507 	struct e1000_mac_info *mac;
3508 	struct e1000_phy_info *phy;
3509 	boolean_t invalid;
3510 
3511 	mac = &Adapter->shared.mac;
3512 	phy = &Adapter->shared.phy;
3513 	invalid = B_FALSE;
3514 
3515 	if (Adapter->param_adv_autoneg == 1) {
3516 		mac->autoneg = B_TRUE;
3517 		phy->autoneg_advertised = 0;
3518 
3519 		/*
3520 		 * 1000hdx is not supported for autonegotiation
3521 		 */
3522 		if (Adapter->param_adv_1000fdx == 1)
3523 			phy->autoneg_advertised |= ADVERTISE_1000_FULL;
3524 
3525 		if (Adapter->param_adv_100fdx == 1)
3526 			phy->autoneg_advertised |= ADVERTISE_100_FULL;
3527 
3528 		if (Adapter->param_adv_100hdx == 1)
3529 			phy->autoneg_advertised |= ADVERTISE_100_HALF;
3530 
3531 		if (Adapter->param_adv_10fdx == 1)
3532 			phy->autoneg_advertised |= ADVERTISE_10_FULL;
3533 
3534 		if (Adapter->param_adv_10hdx == 1)
3535 			phy->autoneg_advertised |= ADVERTISE_10_HALF;
3536 
3537 		if (phy->autoneg_advertised == 0)
3538 			invalid = B_TRUE;
3539 	} else {
3540 		mac->autoneg = B_FALSE;
3541 
3542 		/*
3543 		 * 1000fdx and 1000hdx are not supported for forced link
3544 		 */
3545 		if (Adapter->param_adv_100fdx == 1)
3546 			mac->forced_speed_duplex = ADVERTISE_100_FULL;
3547 		else if (Adapter->param_adv_100hdx == 1)
3548 			mac->forced_speed_duplex = ADVERTISE_100_HALF;
3549 		else if (Adapter->param_adv_10fdx == 1)
3550 			mac->forced_speed_duplex = ADVERTISE_10_FULL;
3551 		else if (Adapter->param_adv_10hdx == 1)
3552 			mac->forced_speed_duplex = ADVERTISE_10_HALF;
3553 		else
3554 			invalid = B_TRUE;
3555 
3556 	}
3557 
3558 	if (invalid) {
3559 		e1000g_log(Adapter, CE_WARN,
3560 		    "Invalid link sets. Setup link to"
3561 		    "support autonegotiation with all link capabilities.");
3562 		mac->autoneg = B_TRUE;
3563 		phy->autoneg_advertised = ADVERTISE_1000_FULL |
3564 		    ADVERTISE_100_FULL | ADVERTISE_100_HALF |
3565 		    ADVERTISE_10_FULL | ADVERTISE_10_HALF;
3566 	}
3567 
3568 	return (e1000_setup_link(&Adapter->shared));
3569 }
3570 
3571 static void
3572 e1000g_local_timer(void *ws)
3573 {
3574 	struct e1000g *Adapter = (struct e1000g *)ws;
3575 	struct e1000_hw *hw;
3576 	e1000g_ether_addr_t ether_addr;
3577 	boolean_t link_changed;
3578 
3579 	hw = &Adapter->shared;
3580 
3581 	if (Adapter->chip_state == E1000G_ERROR) {
3582 		Adapter->reset_count++;
3583 		if (e1000g_global_reset(Adapter))
3584 			ddi_fm_service_impact(Adapter->dip,
3585 			    DDI_SERVICE_RESTORED);
3586 		else
3587 			ddi_fm_service_impact(Adapter->dip,
3588 			    DDI_SERVICE_LOST);
3589 		return;
3590 	}
3591 
3592 	if (e1000g_stall_check(Adapter)) {
3593 		E1000G_DEBUGLOG_0(Adapter, E1000G_INFO_LEVEL,
3594 		    "Tx stall detected. Activate automatic recovery.\n");
3595 		e1000g_fm_ereport(Adapter, DDI_FM_DEVICE_STALL);
3596 		Adapter->reset_count++;
3597 		if (e1000g_reset(Adapter))
3598 			ddi_fm_service_impact(Adapter->dip,
3599 			    DDI_SERVICE_RESTORED);
3600 		else
3601 			ddi_fm_service_impact(Adapter->dip,
3602 			    DDI_SERVICE_LOST);
3603 		return;
3604 	}
3605 
3606 	link_changed = B_FALSE;
3607 	rw_enter(&Adapter->chip_lock, RW_READER);
3608 	if (Adapter->link_complete)
3609 		link_changed = e1000g_link_check(Adapter);
3610 	rw_exit(&Adapter->chip_lock);
3611 
3612 	if (link_changed) {
3613 		/*
3614 		 * Workaround for esb2. Data stuck in fifo on a link
3615 		 * down event. Reset the adapter to recover it.
3616 		 */
3617 		if ((Adapter->link_state == LINK_STATE_DOWN) &&
3618 		    (hw->mac.type == e1000_80003es2lan))
3619 			(void) e1000g_reset(Adapter);
3620 
3621 		mac_link_update(Adapter->mh, Adapter->link_state);
3622 	}
3623 
3624 	/*
3625 	 * With 82571 controllers, any locally administered address will
3626 	 * be overwritten when there is a reset on the other port.
3627 	 * Detect this circumstance and correct it.
3628 	 */
3629 	if ((hw->mac.type == e1000_82571) &&
3630 	    (e1000_get_laa_state_82571(hw) == B_TRUE)) {
3631 		ether_addr.reg.low = E1000_READ_REG_ARRAY(hw, E1000_RA, 0);
3632 		ether_addr.reg.high = E1000_READ_REG_ARRAY(hw, E1000_RA, 1);
3633 
3634 		ether_addr.reg.low = ntohl(ether_addr.reg.low);
3635 		ether_addr.reg.high = ntohl(ether_addr.reg.high);
3636 
3637 		if ((ether_addr.mac.addr[5] != hw->mac.addr[0]) ||
3638 		    (ether_addr.mac.addr[4] != hw->mac.addr[1]) ||
3639 		    (ether_addr.mac.addr[3] != hw->mac.addr[2]) ||
3640 		    (ether_addr.mac.addr[2] != hw->mac.addr[3]) ||
3641 		    (ether_addr.mac.addr[1] != hw->mac.addr[4]) ||
3642 		    (ether_addr.mac.addr[0] != hw->mac.addr[5])) {
3643 			e1000_rar_set(hw, hw->mac.addr, 0);
3644 		}
3645 	}
3646 
3647 	/*
3648 	 * Long TTL workaround for 82541/82547
3649 	 */
3650 	e1000_igp_ttl_workaround_82547(hw);
3651 
3652 	/*
3653 	 * Check for Adaptive IFS settings If there are lots of collisions
3654 	 * change the value in steps...
3655 	 * These properties should only be set for 10/100
3656 	 */
3657 	if ((hw->phy.media_type == e1000_media_type_copper) &&
3658 	    ((Adapter->link_speed == SPEED_100) ||
3659 	    (Adapter->link_speed == SPEED_10))) {
3660 		e1000_update_adaptive(hw);
3661 	}
3662 	/*
3663 	 * Set Timer Interrupts
3664 	 */
3665 	E1000_WRITE_REG(hw, E1000_ICS, E1000_IMS_RXT0);
3666 
3667 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK)
3668 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
3669 
3670 	restart_watchdog_timer(Adapter);
3671 }
3672 
3673 /*
3674  * The function e1000g_link_timer() is called when the timer for link setup
3675  * is expired, which indicates the completion of the link setup. The link
3676  * state will not be updated until the link setup is completed. And the
3677  * link state will not be sent to the upper layer through mac_link_update()
3678  * in this function. It will be updated in the local timer routine or the
3679  * interrupt service routine after the interface is started (plumbed).
3680  */
3681 static void
3682 e1000g_link_timer(void *arg)
3683 {
3684 	struct e1000g *Adapter = (struct e1000g *)arg;
3685 
3686 	mutex_enter(&Adapter->link_lock);
3687 	Adapter->link_complete = B_TRUE;
3688 	Adapter->link_tid = 0;
3689 	mutex_exit(&Adapter->link_lock);
3690 }
3691 
3692 /*
3693  * e1000g_force_speed_duplex - read forced speed/duplex out of e1000g.conf
3694  *
3695  * This function read the forced speed and duplex for 10/100 Mbps speeds
3696  * and also for 1000 Mbps speeds from the e1000g.conf file
3697  */
3698 static void
3699 e1000g_force_speed_duplex(struct e1000g *Adapter)
3700 {
3701 	int forced;
3702 	struct e1000_mac_info *mac = &Adapter->shared.mac;
3703 	struct e1000_phy_info *phy = &Adapter->shared.phy;
3704 
3705 	/*
3706 	 * get value out of config file
3707 	 */
3708 	forced = e1000g_get_prop(Adapter, "ForceSpeedDuplex",
3709 	    GDIAG_10_HALF, GDIAG_ANY, GDIAG_ANY);
3710 
3711 	switch (forced) {
3712 	case GDIAG_10_HALF:
3713 		/*
3714 		 * Disable Auto Negotiation
3715 		 */
3716 		mac->autoneg = B_FALSE;
3717 		mac->forced_speed_duplex = ADVERTISE_10_HALF;
3718 		break;
3719 	case GDIAG_10_FULL:
3720 		/*
3721 		 * Disable Auto Negotiation
3722 		 */
3723 		mac->autoneg = B_FALSE;
3724 		mac->forced_speed_duplex = ADVERTISE_10_FULL;
3725 		break;
3726 	case GDIAG_100_HALF:
3727 		/*
3728 		 * Disable Auto Negotiation
3729 		 */
3730 		mac->autoneg = B_FALSE;
3731 		mac->forced_speed_duplex = ADVERTISE_100_HALF;
3732 		break;
3733 	case GDIAG_100_FULL:
3734 		/*
3735 		 * Disable Auto Negotiation
3736 		 */
3737 		mac->autoneg = B_FALSE;
3738 		mac->forced_speed_duplex = ADVERTISE_100_FULL;
3739 		break;
3740 	case GDIAG_1000_FULL:
3741 		/*
3742 		 * The gigabit spec requires autonegotiation.  Therefore,
3743 		 * when the user wants to force the speed to 1000Mbps, we
3744 		 * enable AutoNeg, but only allow the harware to advertise
3745 		 * 1000Mbps.  This is different from 10/100 operation, where
3746 		 * we are allowed to link without any negotiation.
3747 		 */
3748 		mac->autoneg = B_TRUE;
3749 		phy->autoneg_advertised = ADVERTISE_1000_FULL;
3750 		break;
3751 	default:	/* obey the setting of AutoNegAdvertised */
3752 		mac->autoneg = B_TRUE;
3753 		phy->autoneg_advertised =
3754 		    (uint16_t)e1000g_get_prop(Adapter, "AutoNegAdvertised",
3755 		    0, AUTONEG_ADVERTISE_SPEED_DEFAULT,
3756 		    AUTONEG_ADVERTISE_SPEED_DEFAULT);
3757 		break;
3758 	}	/* switch */
3759 }
3760 
3761 /*
3762  * e1000g_get_max_frame_size - get jumbo frame setting from e1000g.conf
3763  *
3764  * This function reads MaxFrameSize from e1000g.conf
3765  */
3766 static void
3767 e1000g_get_max_frame_size(struct e1000g *Adapter)
3768 {
3769 	int max_frame;
3770 	struct e1000_mac_info *mac = &Adapter->shared.mac;
3771 	struct e1000_phy_info *phy = &Adapter->shared.phy;
3772 
3773 	/*
3774 	 * get value out of config file
3775 	 */
3776 	max_frame = e1000g_get_prop(Adapter, "MaxFrameSize", 0, 3, 0);
3777 
3778 	switch (max_frame) {
3779 	case 0:
3780 		Adapter->default_mtu = ETHERMTU;
3781 		break;
3782 	/*
3783 	 * To avoid excessive memory allocation for rx buffers,
3784 	 * the bytes of E1000G_IPALIGNPRESERVEROOM are reserved.
3785 	 */
3786 	case 1:
3787 		Adapter->default_mtu = FRAME_SIZE_UPTO_4K -
3788 		    sizeof (struct ether_vlan_header) - ETHERFCSL -
3789 		    E1000G_IPALIGNPRESERVEROOM;
3790 		break;
3791 	case 2:
3792 		Adapter->default_mtu = FRAME_SIZE_UPTO_8K -
3793 		    sizeof (struct ether_vlan_header) - ETHERFCSL -
3794 		    E1000G_IPALIGNPRESERVEROOM;
3795 		break;
3796 	case 3:
3797 		if (mac->type >= e1000_82571)
3798 			Adapter->default_mtu = MAXIMUM_MTU;
3799 		else
3800 			Adapter->default_mtu = FRAME_SIZE_UPTO_16K -
3801 			    sizeof (struct ether_vlan_header) - ETHERFCSL -
3802 			    E1000G_IPALIGNPRESERVEROOM;
3803 		break;
3804 	default:
3805 		Adapter->default_mtu = ETHERMTU;
3806 		break;
3807 	}	/* switch */
3808 
3809 	Adapter->max_frame_size = Adapter->default_mtu +
3810 	    sizeof (struct ether_vlan_header) + ETHERFCSL;
3811 
3812 	/* ich8 does not do jumbo frames */
3813 	if (mac->type == e1000_ich8lan) {
3814 		Adapter->max_frame_size = ETHERMAX;
3815 	}
3816 
3817 	/* ich9 does not do jumbo frames on one phy type */
3818 	if ((mac->type == e1000_ich9lan) &&
3819 	    (phy->type == e1000_phy_ife)) {
3820 		Adapter->max_frame_size = ETHERMAX;
3821 	}
3822 }
3823 
3824 static void
3825 arm_watchdog_timer(struct e1000g *Adapter)
3826 {
3827 	Adapter->watchdog_tid =
3828 	    timeout(e1000g_local_timer,
3829 	    (void *)Adapter, 1 * drv_usectohz(1000000));
3830 }
3831 #pragma inline(arm_watchdog_timer)
3832 
3833 static void
3834 enable_watchdog_timer(struct e1000g *Adapter)
3835 {
3836 	mutex_enter(&Adapter->watchdog_lock);
3837 
3838 	if (!Adapter->watchdog_timer_enabled) {
3839 		Adapter->watchdog_timer_enabled = B_TRUE;
3840 		Adapter->watchdog_timer_started = B_TRUE;
3841 		arm_watchdog_timer(Adapter);
3842 	}
3843 
3844 	mutex_exit(&Adapter->watchdog_lock);
3845 }
3846 
3847 static void
3848 disable_watchdog_timer(struct e1000g *Adapter)
3849 {
3850 	timeout_id_t tid;
3851 
3852 	mutex_enter(&Adapter->watchdog_lock);
3853 
3854 	Adapter->watchdog_timer_enabled = B_FALSE;
3855 	Adapter->watchdog_timer_started = B_FALSE;
3856 	tid = Adapter->watchdog_tid;
3857 	Adapter->watchdog_tid = 0;
3858 
3859 	mutex_exit(&Adapter->watchdog_lock);
3860 
3861 	if (tid != 0)
3862 		(void) untimeout(tid);
3863 }
3864 
3865 static void
3866 start_watchdog_timer(struct e1000g *Adapter)
3867 {
3868 	mutex_enter(&Adapter->watchdog_lock);
3869 
3870 	if (Adapter->watchdog_timer_enabled) {
3871 		if (!Adapter->watchdog_timer_started) {
3872 			Adapter->watchdog_timer_started = B_TRUE;
3873 			arm_watchdog_timer(Adapter);
3874 		}
3875 	}
3876 
3877 	mutex_exit(&Adapter->watchdog_lock);
3878 }
3879 
3880 static void
3881 restart_watchdog_timer(struct e1000g *Adapter)
3882 {
3883 	mutex_enter(&Adapter->watchdog_lock);
3884 
3885 	if (Adapter->watchdog_timer_started)
3886 		arm_watchdog_timer(Adapter);
3887 
3888 	mutex_exit(&Adapter->watchdog_lock);
3889 }
3890 
3891 static void
3892 stop_watchdog_timer(struct e1000g *Adapter)
3893 {
3894 	timeout_id_t tid;
3895 
3896 	mutex_enter(&Adapter->watchdog_lock);
3897 
3898 	Adapter->watchdog_timer_started = B_FALSE;
3899 	tid = Adapter->watchdog_tid;
3900 	Adapter->watchdog_tid = 0;
3901 
3902 	mutex_exit(&Adapter->watchdog_lock);
3903 
3904 	if (tid != 0)
3905 		(void) untimeout(tid);
3906 }
3907 
3908 static void
3909 stop_link_timer(struct e1000g *Adapter)
3910 {
3911 	timeout_id_t tid;
3912 
3913 	/* Disable the link timer */
3914 	mutex_enter(&Adapter->link_lock);
3915 
3916 	tid = Adapter->link_tid;
3917 	Adapter->link_tid = 0;
3918 
3919 	mutex_exit(&Adapter->link_lock);
3920 
3921 	if (tid != 0)
3922 		(void) untimeout(tid);
3923 }
3924 
3925 static void
3926 stop_82547_timer(e1000g_tx_ring_t *tx_ring)
3927 {
3928 	timeout_id_t tid;
3929 
3930 	/* Disable the tx timer for 82547 chipset */
3931 	mutex_enter(&tx_ring->tx_lock);
3932 
3933 	tx_ring->timer_enable_82547 = B_FALSE;
3934 	tid = tx_ring->timer_id_82547;
3935 	tx_ring->timer_id_82547 = 0;
3936 
3937 	mutex_exit(&tx_ring->tx_lock);
3938 
3939 	if (tid != 0)
3940 		(void) untimeout(tid);
3941 }
3942 
3943 void
3944 e1000g_clear_interrupt(struct e1000g *Adapter)
3945 {
3946 	E1000_WRITE_REG(&Adapter->shared, E1000_IMC,
3947 	    0xffffffff & ~E1000_IMS_RXSEQ);
3948 }
3949 
3950 void
3951 e1000g_mask_interrupt(struct e1000g *Adapter)
3952 {
3953 	E1000_WRITE_REG(&Adapter->shared, E1000_IMS,
3954 	    IMS_ENABLE_MASK & ~E1000_IMS_TXDW);
3955 
3956 	if (Adapter->tx_intr_enable)
3957 		e1000g_mask_tx_interrupt(Adapter);
3958 }
3959 
3960 void
3961 e1000g_clear_all_interrupts(struct e1000g *Adapter)
3962 {
3963 	E1000_WRITE_REG(&Adapter->shared, E1000_IMC, 0xffffffff);
3964 }
3965 
3966 void
3967 e1000g_mask_tx_interrupt(struct e1000g *Adapter)
3968 {
3969 	E1000_WRITE_REG(&Adapter->shared, E1000_IMS, E1000_IMS_TXDW);
3970 }
3971 
3972 void
3973 e1000g_clear_tx_interrupt(struct e1000g *Adapter)
3974 {
3975 	E1000_WRITE_REG(&Adapter->shared, E1000_IMC, E1000_IMS_TXDW);
3976 }
3977 
3978 static void
3979 e1000g_smartspeed(struct e1000g *Adapter)
3980 {
3981 	struct e1000_hw *hw = &Adapter->shared;
3982 	uint16_t phy_status;
3983 	uint16_t phy_ctrl;
3984 
3985 	/*
3986 	 * If we're not T-or-T, or we're not autoneg'ing, or we're not
3987 	 * advertising 1000Full, we don't even use the workaround
3988 	 */
3989 	if ((hw->phy.type != e1000_phy_igp) ||
3990 	    !hw->mac.autoneg ||
3991 	    !(hw->phy.autoneg_advertised & ADVERTISE_1000_FULL))
3992 		return;
3993 
3994 	/*
3995 	 * True if this is the first call of this function or after every
3996 	 * 30 seconds of not having link
3997 	 */
3998 	if (Adapter->smartspeed == 0) {
3999 		/*
4000 		 * If Master/Slave config fault is asserted twice, we
4001 		 * assume back-to-back
4002 		 */
4003 		e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
4004 		if (!(phy_status & SR_1000T_MS_CONFIG_FAULT))
4005 			return;
4006 
4007 		e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
4008 		if (!(phy_status & SR_1000T_MS_CONFIG_FAULT))
4009 			return;
4010 		/*
4011 		 * We're assuming back-2-back because our status register
4012 		 * insists! there's a fault in the master/slave
4013 		 * relationship that was "negotiated"
4014 		 */
4015 		e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
4016 		/*
4017 		 * Is the phy configured for manual configuration of
4018 		 * master/slave?
4019 		 */
4020 		if (phy_ctrl & CR_1000T_MS_ENABLE) {
4021 			/*
4022 			 * Yes.  Then disable manual configuration (enable
4023 			 * auto configuration) of master/slave
4024 			 */
4025 			phy_ctrl &= ~CR_1000T_MS_ENABLE;
4026 			e1000_write_phy_reg(hw,
4027 			    PHY_1000T_CTRL, phy_ctrl);
4028 			/*
4029 			 * Effectively starting the clock
4030 			 */
4031 			Adapter->smartspeed++;
4032 			/*
4033 			 * Restart autonegotiation
4034 			 */
4035 			if (!e1000_phy_setup_autoneg(hw) &&
4036 			    !e1000_read_phy_reg(hw, PHY_CONTROL, &phy_ctrl)) {
4037 				phy_ctrl |= (MII_CR_AUTO_NEG_EN |
4038 				    MII_CR_RESTART_AUTO_NEG);
4039 				e1000_write_phy_reg(hw,
4040 				    PHY_CONTROL, phy_ctrl);
4041 			}
4042 		}
4043 		return;
4044 		/*
4045 		 * Has 6 seconds transpired still without link? Remember,
4046 		 * you should reset the smartspeed counter once you obtain
4047 		 * link
4048 		 */
4049 	} else if (Adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) {
4050 		/*
4051 		 * Yes.  Remember, we did at the start determine that
4052 		 * there's a master/slave configuration fault, so we're
4053 		 * still assuming there's someone on the other end, but we
4054 		 * just haven't yet been able to talk to it. We then
4055 		 * re-enable auto configuration of master/slave to see if
4056 		 * we're running 2/3 pair cables.
4057 		 */
4058 		/*
4059 		 * If still no link, perhaps using 2/3 pair cable
4060 		 */
4061 		e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
4062 		phy_ctrl |= CR_1000T_MS_ENABLE;
4063 		e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl);
4064 		/*
4065 		 * Restart autoneg with phy enabled for manual
4066 		 * configuration of master/slave
4067 		 */
4068 		if (!e1000_phy_setup_autoneg(hw) &&
4069 		    !e1000_read_phy_reg(hw, PHY_CONTROL, &phy_ctrl)) {
4070 			phy_ctrl |=
4071 			    (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG);
4072 			e1000_write_phy_reg(hw, PHY_CONTROL, phy_ctrl);
4073 		}
4074 		/*
4075 		 * Hopefully, there are no more faults and we've obtained
4076 		 * link as a result.
4077 		 */
4078 	}
4079 	/*
4080 	 * Restart process after E1000_SMARTSPEED_MAX iterations (30
4081 	 * seconds)
4082 	 */
4083 	if (Adapter->smartspeed++ == E1000_SMARTSPEED_MAX)
4084 		Adapter->smartspeed = 0;
4085 }
4086 
4087 static boolean_t
4088 is_valid_mac_addr(uint8_t *mac_addr)
4089 {
4090 	const uint8_t addr_test1[6] = { 0, 0, 0, 0, 0, 0 };
4091 	const uint8_t addr_test2[6] =
4092 	    { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
4093 
4094 	if (!(bcmp(addr_test1, mac_addr, ETHERADDRL)) ||
4095 	    !(bcmp(addr_test2, mac_addr, ETHERADDRL)))
4096 		return (B_FALSE);
4097 
4098 	return (B_TRUE);
4099 }
4100 
4101 /*
4102  * e1000g_stall_check - check for tx stall
4103  *
4104  * This function checks if the adapter is stalled (in transmit).
4105  *
4106  * It is called each time the watchdog timeout is invoked.
4107  * If the transmit descriptor reclaim continuously fails,
4108  * the watchdog value will increment by 1. If the watchdog
4109  * value exceeds the threshold, the adapter is assumed to
4110  * have stalled and need to be reset.
4111  */
4112 static boolean_t
4113 e1000g_stall_check(struct e1000g *Adapter)
4114 {
4115 	e1000g_tx_ring_t *tx_ring;
4116 
4117 	tx_ring = Adapter->tx_ring;
4118 
4119 	if (Adapter->link_state != LINK_STATE_UP)
4120 		return (B_FALSE);
4121 
4122 	if (tx_ring->recycle_fail > 0)
4123 		tx_ring->stall_watchdog++;
4124 	else
4125 		tx_ring->stall_watchdog = 0;
4126 
4127 	if (tx_ring->stall_watchdog < E1000G_STALL_WATCHDOG_COUNT)
4128 		return (B_FALSE);
4129 
4130 	tx_ring->stall_watchdog = 0;
4131 	tx_ring->recycle_fail = 0;
4132 
4133 	return (B_TRUE);
4134 }
4135 
4136 #ifdef E1000G_DEBUG
4137 static enum ioc_reply
4138 e1000g_pp_ioctl(struct e1000g *e1000gp, struct iocblk *iocp, mblk_t *mp)
4139 {
4140 	void (*ppfn)(struct e1000g *e1000gp, e1000g_peekpoke_t *ppd);
4141 	e1000g_peekpoke_t *ppd;
4142 	uint64_t mem_va;
4143 	uint64_t maxoff;
4144 	boolean_t peek;
4145 
4146 	switch (iocp->ioc_cmd) {
4147 
4148 	case E1000G_IOC_REG_PEEK:
4149 		peek = B_TRUE;
4150 		break;
4151 
4152 	case E1000G_IOC_REG_POKE:
4153 		peek = B_FALSE;
4154 		break;
4155 
4156 	deault:
4157 		E1000G_DEBUGLOG_1(e1000gp, E1000G_INFO_LEVEL,
4158 		    "e1000g_diag_ioctl: invalid ioctl command 0x%X\n",
4159 		    iocp->ioc_cmd);
4160 		return (IOC_INVAL);
4161 	}
4162 
4163 	/*
4164 	 * Validate format of ioctl
4165 	 */
4166 	if (iocp->ioc_count != sizeof (e1000g_peekpoke_t))
4167 		return (IOC_INVAL);
4168 	if (mp->b_cont == NULL)
4169 		return (IOC_INVAL);
4170 
4171 	ppd = (e1000g_peekpoke_t *)mp->b_cont->b_rptr;
4172 
4173 	/*
4174 	 * Validate request parameters
4175 	 */
4176 	switch (ppd->pp_acc_space) {
4177 
4178 	default:
4179 		E1000G_DEBUGLOG_1(e1000gp, E1000G_INFO_LEVEL,
4180 		    "e1000g_diag_ioctl: invalid access space 0x%X\n",
4181 		    ppd->pp_acc_space);
4182 		return (IOC_INVAL);
4183 
4184 	case E1000G_PP_SPACE_REG:
4185 		/*
4186 		 * Memory-mapped I/O space
4187 		 */
4188 		ASSERT(ppd->pp_acc_size == 4);
4189 		if (ppd->pp_acc_size != 4)
4190 			return (IOC_INVAL);
4191 
4192 		if ((ppd->pp_acc_offset % ppd->pp_acc_size) != 0)
4193 			return (IOC_INVAL);
4194 
4195 		mem_va = 0;
4196 		maxoff = 0x10000;
4197 		ppfn = peek ? e1000g_ioc_peek_reg : e1000g_ioc_poke_reg;
4198 		break;
4199 
4200 	case E1000G_PP_SPACE_E1000G:
4201 		/*
4202 		 * E1000g data structure!
4203 		 */
4204 		mem_va = (uintptr_t)e1000gp;
4205 		maxoff = sizeof (struct e1000g);
4206 		ppfn = peek ? e1000g_ioc_peek_mem : e1000g_ioc_poke_mem;
4207 		break;
4208 
4209 	}
4210 
4211 	if (ppd->pp_acc_offset >= maxoff)
4212 		return (IOC_INVAL);
4213 
4214 	if (ppd->pp_acc_offset + ppd->pp_acc_size > maxoff)
4215 		return (IOC_INVAL);
4216 
4217 	/*
4218 	 * All OK - go!
4219 	 */
4220 	ppd->pp_acc_offset += mem_va;
4221 	(*ppfn)(e1000gp, ppd);
4222 	return (peek ? IOC_REPLY : IOC_ACK);
4223 }
4224 
4225 static void
4226 e1000g_ioc_peek_reg(struct e1000g *e1000gp, e1000g_peekpoke_t *ppd)
4227 {
4228 	ddi_acc_handle_t handle;
4229 	uint32_t *regaddr;
4230 
4231 	handle = e1000gp->osdep.reg_handle;
4232 	regaddr =
4233 	    (uint32_t *)(e1000gp->shared.hw_addr + ppd->pp_acc_offset);
4234 
4235 	ppd->pp_acc_data = ddi_get32(handle, regaddr);
4236 }
4237 
4238 static void
4239 e1000g_ioc_poke_reg(struct e1000g *e1000gp, e1000g_peekpoke_t *ppd)
4240 {
4241 	ddi_acc_handle_t handle;
4242 	uint32_t *regaddr;
4243 	uint32_t value;
4244 
4245 	handle = e1000gp->osdep.reg_handle;
4246 	regaddr =
4247 	    (uint32_t *)(e1000gp->shared.hw_addr + ppd->pp_acc_offset);
4248 	value = (uint32_t)ppd->pp_acc_data;
4249 
4250 	ddi_put32(handle, regaddr, value);
4251 }
4252 
4253 static void
4254 e1000g_ioc_peek_mem(struct e1000g *e1000gp, e1000g_peekpoke_t *ppd)
4255 {
4256 	uint64_t value;
4257 	void *vaddr;
4258 
4259 	vaddr = (void *)(uintptr_t)ppd->pp_acc_offset;
4260 
4261 	switch (ppd->pp_acc_size) {
4262 	case 1:
4263 		value = *(uint8_t *)vaddr;
4264 		break;
4265 
4266 	case 2:
4267 		value = *(uint16_t *)vaddr;
4268 		break;
4269 
4270 	case 4:
4271 		value = *(uint32_t *)vaddr;
4272 		break;
4273 
4274 	case 8:
4275 		value = *(uint64_t *)vaddr;
4276 		break;
4277 	}
4278 
4279 	E1000G_DEBUGLOG_4(e1000gp, E1000G_INFO_LEVEL,
4280 	    "e1000g_ioc_peek_mem($%p, $%p) peeked 0x%llx from $%p\n",
4281 	    (void *)e1000gp, (void *)ppd, value, vaddr);
4282 
4283 	ppd->pp_acc_data = value;
4284 }
4285 
4286 static void
4287 e1000g_ioc_poke_mem(struct e1000g *e1000gp, e1000g_peekpoke_t *ppd)
4288 {
4289 	uint64_t value;
4290 	void *vaddr;
4291 
4292 	vaddr = (void *)(uintptr_t)ppd->pp_acc_offset;
4293 	value = ppd->pp_acc_data;
4294 
4295 	E1000G_DEBUGLOG_4(e1000gp, E1000G_INFO_LEVEL,
4296 	    "e1000g_ioc_poke_mem($%p, $%p) poking 0x%llx at $%p\n",
4297 	    (void *)e1000gp, (void *)ppd, value, vaddr);
4298 
4299 	switch (ppd->pp_acc_size) {
4300 	case 1:
4301 		*(uint8_t *)vaddr = (uint8_t)value;
4302 		break;
4303 
4304 	case 2:
4305 		*(uint16_t *)vaddr = (uint16_t)value;
4306 		break;
4307 
4308 	case 4:
4309 		*(uint32_t *)vaddr = (uint32_t)value;
4310 		break;
4311 
4312 	case 8:
4313 		*(uint64_t *)vaddr = (uint64_t)value;
4314 		break;
4315 	}
4316 }
4317 #endif
4318 
4319 /*
4320  * Loopback Support
4321  */
4322 static lb_property_t lb_normal =
4323 	{ normal,	"normal",	E1000G_LB_NONE		};
4324 static lb_property_t lb_external1000 =
4325 	{ external,	"1000Mbps",	E1000G_LB_EXTERNAL_1000	};
4326 static lb_property_t lb_external100 =
4327 	{ external,	"100Mbps",	E1000G_LB_EXTERNAL_100	};
4328 static lb_property_t lb_external10 =
4329 	{ external,	"10Mbps",	E1000G_LB_EXTERNAL_10	};
4330 static lb_property_t lb_phy =
4331 	{ internal,	"PHY",		E1000G_LB_INTERNAL_PHY	};
4332 
4333 static enum ioc_reply
4334 e1000g_loopback_ioctl(struct e1000g *Adapter, struct iocblk *iocp, mblk_t *mp)
4335 {
4336 	lb_info_sz_t *lbsp;
4337 	lb_property_t *lbpp;
4338 	struct e1000_hw *hw;
4339 	uint32_t *lbmp;
4340 	uint32_t size;
4341 	uint32_t value;
4342 
4343 	hw = &Adapter->shared;
4344 
4345 	if (mp->b_cont == NULL)
4346 		return (IOC_INVAL);
4347 
4348 	switch (iocp->ioc_cmd) {
4349 	default:
4350 		return (IOC_INVAL);
4351 
4352 	case LB_GET_INFO_SIZE:
4353 		size = sizeof (lb_info_sz_t);
4354 		if (iocp->ioc_count != size)
4355 			return (IOC_INVAL);
4356 
4357 		rw_enter(&Adapter->chip_lock, RW_WRITER);
4358 		e1000g_get_phy_state(Adapter);
4359 
4360 		/*
4361 		 * Workaround for hardware faults. In order to get a stable
4362 		 * state of phy, we will wait for a specific interval and
4363 		 * try again. The time delay is an experiential value based
4364 		 * on our testing.
4365 		 */
4366 		msec_delay(100);
4367 		e1000g_get_phy_state(Adapter);
4368 		rw_exit(&Adapter->chip_lock);
4369 
4370 		value = sizeof (lb_normal);
4371 		if ((Adapter->phy_ext_status & IEEE_ESR_1000T_FD_CAPS) ||
4372 		    (Adapter->phy_ext_status & IEEE_ESR_1000X_FD_CAPS) ||
4373 		    (hw->phy.media_type == e1000_media_type_fiber) ||
4374 		    (hw->phy.media_type == e1000_media_type_internal_serdes)) {
4375 			value += sizeof (lb_phy);
4376 			switch (hw->mac.type) {
4377 			case e1000_82571:
4378 			case e1000_82572:
4379 				value += sizeof (lb_external1000);
4380 				break;
4381 			}
4382 		}
4383 		if ((Adapter->phy_status & MII_SR_100X_FD_CAPS) ||
4384 		    (Adapter->phy_status & MII_SR_100T2_FD_CAPS))
4385 			value += sizeof (lb_external100);
4386 		if (Adapter->phy_status & MII_SR_10T_FD_CAPS)
4387 			value += sizeof (lb_external10);
4388 
4389 		lbsp = (lb_info_sz_t *)mp->b_cont->b_rptr;
4390 		*lbsp = value;
4391 		break;
4392 
4393 	case LB_GET_INFO:
4394 		value = sizeof (lb_normal);
4395 		if ((Adapter->phy_ext_status & IEEE_ESR_1000T_FD_CAPS) ||
4396 		    (Adapter->phy_ext_status & IEEE_ESR_1000X_FD_CAPS) ||
4397 		    (hw->phy.media_type == e1000_media_type_fiber) ||
4398 		    (hw->phy.media_type == e1000_media_type_internal_serdes)) {
4399 			value += sizeof (lb_phy);
4400 			switch (hw->mac.type) {
4401 			case e1000_82571:
4402 			case e1000_82572:
4403 				value += sizeof (lb_external1000);
4404 				break;
4405 			}
4406 		}
4407 		if ((Adapter->phy_status & MII_SR_100X_FD_CAPS) ||
4408 		    (Adapter->phy_status & MII_SR_100T2_FD_CAPS))
4409 			value += sizeof (lb_external100);
4410 		if (Adapter->phy_status & MII_SR_10T_FD_CAPS)
4411 			value += sizeof (lb_external10);
4412 
4413 		size = value;
4414 		if (iocp->ioc_count != size)
4415 			return (IOC_INVAL);
4416 
4417 		value = 0;
4418 		lbpp = (lb_property_t *)mp->b_cont->b_rptr;
4419 		lbpp[value++] = lb_normal;
4420 		if ((Adapter->phy_ext_status & IEEE_ESR_1000T_FD_CAPS) ||
4421 		    (Adapter->phy_ext_status & IEEE_ESR_1000X_FD_CAPS) ||
4422 		    (hw->phy.media_type == e1000_media_type_fiber) ||
4423 		    (hw->phy.media_type == e1000_media_type_internal_serdes)) {
4424 			lbpp[value++] = lb_phy;
4425 			switch (hw->mac.type) {
4426 			case e1000_82571:
4427 			case e1000_82572:
4428 				lbpp[value++] = lb_external1000;
4429 				break;
4430 			}
4431 		}
4432 		if ((Adapter->phy_status & MII_SR_100X_FD_CAPS) ||
4433 		    (Adapter->phy_status & MII_SR_100T2_FD_CAPS))
4434 			lbpp[value++] = lb_external100;
4435 		if (Adapter->phy_status & MII_SR_10T_FD_CAPS)
4436 			lbpp[value++] = lb_external10;
4437 		break;
4438 
4439 	case LB_GET_MODE:
4440 		size = sizeof (uint32_t);
4441 		if (iocp->ioc_count != size)
4442 			return (IOC_INVAL);
4443 
4444 		lbmp = (uint32_t *)mp->b_cont->b_rptr;
4445 		*lbmp = Adapter->loopback_mode;
4446 		break;
4447 
4448 	case LB_SET_MODE:
4449 		size = 0;
4450 		if (iocp->ioc_count != sizeof (uint32_t))
4451 			return (IOC_INVAL);
4452 
4453 		lbmp = (uint32_t *)mp->b_cont->b_rptr;
4454 		if (!e1000g_set_loopback_mode(Adapter, *lbmp))
4455 			return (IOC_INVAL);
4456 		break;
4457 	}
4458 
4459 	iocp->ioc_count = size;
4460 	iocp->ioc_error = 0;
4461 
4462 	if (e1000g_check_acc_handle(Adapter->osdep.reg_handle) != DDI_FM_OK) {
4463 		ddi_fm_service_impact(Adapter->dip, DDI_SERVICE_DEGRADED);
4464 		return (IOC_INVAL);
4465 	}
4466 
4467 	return (IOC_REPLY);
4468 }
4469 
4470 static boolean_t
4471 e1000g_set_loopback_mode(struct e1000g *Adapter, uint32_t mode)
4472 {
4473 	struct e1000_hw *hw;
4474 	int i, times;
4475 	boolean_t link_up;
4476 
4477 	if (mode == Adapter->loopback_mode)
4478 		return (B_TRUE);
4479 
4480 	hw = &Adapter->shared;
4481 	times = 0;
4482 
4483 	Adapter->loopback_mode = mode;
4484 
4485 	if (mode == E1000G_LB_NONE) {
4486 		/* Reset the chip */
4487 		hw->phy.autoneg_wait_to_complete = B_TRUE;
4488 		(void) e1000g_reset(Adapter);
4489 		hw->phy.autoneg_wait_to_complete = B_FALSE;
4490 		return (B_TRUE);
4491 	}
4492 
4493 again:
4494 
4495 	rw_enter(&Adapter->chip_lock, RW_WRITER);
4496 
4497 	switch (mode) {
4498 	default:
4499 		rw_exit(&Adapter->chip_lock);
4500 		return (B_FALSE);
4501 
4502 	case E1000G_LB_EXTERNAL_1000:
4503 		e1000g_set_external_loopback_1000(Adapter);
4504 		break;
4505 
4506 	case E1000G_LB_EXTERNAL_100:
4507 		e1000g_set_external_loopback_100(Adapter);
4508 		break;
4509 
4510 	case E1000G_LB_EXTERNAL_10:
4511 		e1000g_set_external_loopback_10(Adapter);
4512 		break;
4513 
4514 	case E1000G_LB_INTERNAL_PHY:
4515 		e1000g_set_internal_loopback(Adapter);
4516 		break;
4517 	}
4518 
4519 	times++;
4520 
4521 	rw_exit(&Adapter->chip_lock);
4522 
4523 	/* Wait for link up */
4524 	for (i = (PHY_FORCE_LIMIT * 2); i > 0; i--)
4525 		msec_delay(100);
4526 
4527 	rw_enter(&Adapter->chip_lock, RW_WRITER);
4528 
4529 	link_up = e1000g_link_up(Adapter);
4530 
4531 	rw_exit(&Adapter->chip_lock);
4532 
4533 	if (!link_up) {
4534 		E1000G_DEBUGLOG_0(Adapter, E1000G_INFO_LEVEL,
4535 		    "Failed to get the link up");
4536 		if (times < 2) {
4537 			/* Reset the link */
4538 			E1000G_DEBUGLOG_0(Adapter, E1000G_INFO_LEVEL,
4539 			    "Reset the link ...");
4540 			(void) e1000g_reset(Adapter);
4541 			goto again;
4542 		}
4543 	}
4544 
4545 	return (B_TRUE);
4546 }
4547 
4548 /*
4549  * The following loopback settings are from Intel's technical
4550  * document - "How To Loopback". All the register settings and
4551  * time delay values are directly inherited from the document
4552  * without more explanations available.
4553  */
4554 static void
4555 e1000g_set_internal_loopback(struct e1000g *Adapter)
4556 {
4557 	struct e1000_hw *hw;
4558 	uint32_t ctrl;
4559 	uint32_t status;
4560 	uint16_t phy_ctrl;
4561 	uint32_t txcw;
4562 
4563 	hw = &Adapter->shared;
4564 
4565 	/* Disable Smart Power Down */
4566 	phy_spd_state(hw, B_FALSE);
4567 
4568 	e1000_read_phy_reg(hw, PHY_CONTROL, &phy_ctrl);
4569 	phy_ctrl &= ~(MII_CR_AUTO_NEG_EN | MII_CR_SPEED_100 | MII_CR_SPEED_10);
4570 	phy_ctrl |= MII_CR_FULL_DUPLEX | MII_CR_SPEED_1000;
4571 
4572 	switch (hw->mac.type) {
4573 	case e1000_82540:
4574 	case e1000_82545:
4575 	case e1000_82545_rev_3:
4576 	case e1000_82546:
4577 	case e1000_82546_rev_3:
4578 	case e1000_82573:
4579 		/* Auto-MDI/MDIX off */
4580 		e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
4581 		/* Reset PHY to update Auto-MDI/MDIX */
4582 		e1000_write_phy_reg(hw, PHY_CONTROL,
4583 		    phy_ctrl | MII_CR_RESET | MII_CR_AUTO_NEG_EN);
4584 		/* Reset PHY to auto-neg off and force 1000 */
4585 		e1000_write_phy_reg(hw, PHY_CONTROL,
4586 		    phy_ctrl | MII_CR_RESET);
4587 		/*
4588 		 * Disable PHY receiver for 82540/545/546 and 82573 Family.
4589 		 * See comments above e1000g_set_internal_loopback() for the
4590 		 * background.
4591 		 */
4592 		e1000_write_phy_reg(hw, 29, 0x001F);
4593 		e1000_write_phy_reg(hw, 30, 0x8FFC);
4594 		e1000_write_phy_reg(hw, 29, 0x001A);
4595 		e1000_write_phy_reg(hw, 30, 0x8FF0);
4596 		break;
4597 	}
4598 
4599 	/* Set loopback */
4600 	e1000_write_phy_reg(hw, PHY_CONTROL, phy_ctrl | MII_CR_LOOPBACK);
4601 
4602 	msec_delay(250);
4603 
4604 	/* Now set up the MAC to the same speed/duplex as the PHY. */
4605 	ctrl = E1000_READ_REG(hw, E1000_CTRL);
4606 	ctrl &= ~E1000_CTRL_SPD_SEL;	/* Clear the speed sel bits */
4607 	ctrl |= (E1000_CTRL_FRCSPD |	/* Set the Force Speed Bit */
4608 	    E1000_CTRL_FRCDPX |		/* Set the Force Duplex Bit */
4609 	    E1000_CTRL_SPD_1000 |	/* Force Speed to 1000 */
4610 	    E1000_CTRL_FD);		/* Force Duplex to FULL */
4611 
4612 	switch (hw->mac.type) {
4613 	case e1000_82540:
4614 	case e1000_82545:
4615 	case e1000_82545_rev_3:
4616 	case e1000_82546:
4617 	case e1000_82546_rev_3:
4618 		/*
4619 		 * For some serdes we'll need to commit the writes now
4620 		 * so that the status is updated on link
4621 		 */
4622 		if (hw->phy.media_type == e1000_media_type_internal_serdes) {
4623 			E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
4624 			msec_delay(100);
4625 			ctrl = E1000_READ_REG(hw, E1000_CTRL);
4626 		}
4627 
4628 		if (hw->phy.media_type == e1000_media_type_copper) {
4629 			/* Invert Loss of Signal */
4630 			ctrl |= E1000_CTRL_ILOS;
4631 		} else {
4632 			/* Set ILOS on fiber nic if half duplex is detected */
4633 			status = E1000_READ_REG(hw, E1000_STATUS);
4634 			if ((status & E1000_STATUS_FD) == 0)
4635 				ctrl |= E1000_CTRL_ILOS | E1000_CTRL_SLU;
4636 		}
4637 		break;
4638 
4639 	case e1000_82571:
4640 	case e1000_82572:
4641 		/*
4642 		 * The fiber/SerDes versions of this adapter do not contain an
4643 		 * accessible PHY. Therefore, loopback beyond MAC must be done
4644 		 * using SerDes analog loopback.
4645 		 */
4646 		if (hw->phy.media_type != e1000_media_type_copper) {
4647 			status = E1000_READ_REG(hw, E1000_STATUS);
4648 			/* Set ILOS on fiber nic if half duplex is detected */
4649 			if (((status & E1000_STATUS_LU) == 0) ||
4650 			    ((status & E1000_STATUS_FD) == 0) ||
4651 			    (hw->phy.media_type ==
4652 			    e1000_media_type_internal_serdes))
4653 				ctrl |= E1000_CTRL_ILOS | E1000_CTRL_SLU;
4654 
4655 			/* Disable autoneg by setting bit 31 of TXCW to zero */
4656 			txcw = E1000_READ_REG(hw, E1000_TXCW);
4657 			txcw &= ~((uint32_t)1 << 31);
4658 			E1000_WRITE_REG(hw, E1000_TXCW, txcw);
4659 
4660 			/*
4661 			 * Write 0x410 to Serdes Control register
4662 			 * to enable Serdes analog loopback
4663 			 */
4664 			E1000_WRITE_REG(hw, E1000_SCTL, 0x0410);
4665 			msec_delay(10);
4666 		}
4667 		break;
4668 
4669 	case e1000_82573:
4670 		ctrl |= E1000_CTRL_ILOS;
4671 		break;
4672 	}
4673 
4674 	E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
4675 
4676 }
4677 
4678 static void
4679 e1000g_set_external_loopback_1000(struct e1000g *Adapter)
4680 {
4681 	struct e1000_hw *hw;
4682 	uint32_t rctl;
4683 	uint32_t ctrl_ext;
4684 	uint32_t ctrl;
4685 	uint32_t status;
4686 	uint32_t txcw;
4687 
4688 	hw = &Adapter->shared;
4689 
4690 	/* Disable Smart Power Down */
4691 	phy_spd_state(hw, B_FALSE);
4692 
4693 	switch (hw->phy.media_type) {
4694 	case e1000_media_type_copper:
4695 		/* Force link up (Must be done before the PHY writes) */
4696 		ctrl = E1000_READ_REG(hw, E1000_CTRL);
4697 		ctrl |= E1000_CTRL_SLU;	/* Force Link Up */
4698 		E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
4699 
4700 		rctl = E1000_READ_REG(hw, E1000_RCTL);
4701 		rctl |= (E1000_RCTL_EN |
4702 		    E1000_RCTL_SBP |
4703 		    E1000_RCTL_UPE |
4704 		    E1000_RCTL_MPE |
4705 		    E1000_RCTL_LPE |
4706 		    E1000_RCTL_BAM);		/* 0x803E */
4707 		E1000_WRITE_REG(hw, E1000_RCTL, rctl);
4708 
4709 		ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
4710 		ctrl_ext |= (E1000_CTRL_EXT_SDP4_DATA |
4711 		    E1000_CTRL_EXT_SDP6_DATA |
4712 		    E1000_CTRL_EXT_SDP7_DATA |
4713 		    E1000_CTRL_EXT_SDP4_DIR |
4714 		    E1000_CTRL_EXT_SDP6_DIR |
4715 		    E1000_CTRL_EXT_SDP7_DIR);	/* 0x0DD0 */
4716 		E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
4717 
4718 		/*
4719 		 * This sequence tunes the PHY's SDP and no customer
4720 		 * settable values. For background, see comments above
4721 		 * e1000g_set_internal_loopback().
4722 		 */
4723 		e1000_write_phy_reg(hw, 0x0, 0x140);
4724 		msec_delay(10);
4725 		e1000_write_phy_reg(hw, 0x9, 0x1A00);
4726 		e1000_write_phy_reg(hw, 0x12, 0xC10);
4727 		e1000_write_phy_reg(hw, 0x12, 0x1C10);
4728 		e1000_write_phy_reg(hw, 0x1F37, 0x76);
4729 		e1000_write_phy_reg(hw, 0x1F33, 0x1);
4730 		e1000_write_phy_reg(hw, 0x1F33, 0x0);
4731 
4732 		e1000_write_phy_reg(hw, 0x1F35, 0x65);
4733 		e1000_write_phy_reg(hw, 0x1837, 0x3F7C);
4734 		e1000_write_phy_reg(hw, 0x1437, 0x3FDC);
4735 		e1000_write_phy_reg(hw, 0x1237, 0x3F7C);
4736 		e1000_write_phy_reg(hw, 0x1137, 0x3FDC);
4737 
4738 		msec_delay(50);
4739 		break;
4740 	case e1000_media_type_fiber:
4741 	case e1000_media_type_internal_serdes:
4742 		status = E1000_READ_REG(hw, E1000_STATUS);
4743 		if (((status & E1000_STATUS_LU) == 0) ||
4744 		    (hw->phy.media_type == e1000_media_type_internal_serdes)) {
4745 			ctrl = E1000_READ_REG(hw, E1000_CTRL);
4746 			ctrl |= E1000_CTRL_ILOS | E1000_CTRL_SLU;
4747 			E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
4748 		}
4749 
4750 		/* Disable autoneg by setting bit 31 of TXCW to zero */
4751 		txcw = E1000_READ_REG(hw, E1000_TXCW);
4752 		txcw &= ~((uint32_t)1 << 31);
4753 		E1000_WRITE_REG(hw, E1000_TXCW, txcw);
4754 
4755 		/*
4756 		 * Write 0x410 to Serdes Control register
4757 		 * to enable Serdes analog loopback
4758 		 */
4759 		E1000_WRITE_REG(hw, E1000_SCTL, 0x0410);
4760 		msec_delay(10);
4761 		break;
4762 	default:
4763 		break;
4764 	}
4765 }
4766 
4767 static void
4768 e1000g_set_external_loopback_100(struct e1000g *Adapter)
4769 {
4770 	struct e1000_hw *hw;
4771 	uint32_t ctrl;
4772 	uint16_t phy_ctrl;
4773 
4774 	hw = &Adapter->shared;
4775 
4776 	/* Disable Smart Power Down */
4777 	phy_spd_state(hw, B_FALSE);
4778 
4779 	phy_ctrl = (MII_CR_FULL_DUPLEX |
4780 	    MII_CR_SPEED_100);
4781 
4782 	/* Force 100/FD, reset PHY */
4783 	e1000_write_phy_reg(hw, PHY_CONTROL,
4784 	    phy_ctrl | MII_CR_RESET);	/* 0xA100 */
4785 	msec_delay(10);
4786 
4787 	/* Force 100/FD */
4788 	e1000_write_phy_reg(hw, PHY_CONTROL,
4789 	    phy_ctrl);			/* 0x2100 */
4790 	msec_delay(10);
4791 
4792 	/* Now setup the MAC to the same speed/duplex as the PHY. */
4793 	ctrl = E1000_READ_REG(hw, E1000_CTRL);
4794 	ctrl &= ~E1000_CTRL_SPD_SEL;	/* Clear the speed sel bits */
4795 	ctrl |= (E1000_CTRL_SLU |	/* Force Link Up */
4796 	    E1000_CTRL_FRCSPD |		/* Set the Force Speed Bit */
4797 	    E1000_CTRL_FRCDPX |		/* Set the Force Duplex Bit */
4798 	    E1000_CTRL_SPD_100 |	/* Force Speed to 100 */
4799 	    E1000_CTRL_FD);		/* Force Duplex to FULL */
4800 
4801 	E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
4802 }
4803 
4804 static void
4805 e1000g_set_external_loopback_10(struct e1000g *Adapter)
4806 {
4807 	struct e1000_hw *hw;
4808 	uint32_t ctrl;
4809 	uint16_t phy_ctrl;
4810 
4811 	hw = &Adapter->shared;
4812 
4813 	/* Disable Smart Power Down */
4814 	phy_spd_state(hw, B_FALSE);
4815 
4816 	phy_ctrl = (MII_CR_FULL_DUPLEX |
4817 	    MII_CR_SPEED_10);
4818 
4819 	/* Force 10/FD, reset PHY */
4820 	e1000_write_phy_reg(hw, PHY_CONTROL,
4821 	    phy_ctrl | MII_CR_RESET);	/* 0x8100 */
4822 	msec_delay(10);
4823 
4824 	/* Force 10/FD */
4825 	e1000_write_phy_reg(hw, PHY_CONTROL,
4826 	    phy_ctrl);			/* 0x0100 */
4827 	msec_delay(10);
4828 
4829 	/* Now setup the MAC to the same speed/duplex as the PHY. */
4830 	ctrl = E1000_READ_REG(hw, E1000_CTRL);
4831 	ctrl &= ~E1000_CTRL_SPD_SEL;	/* Clear the speed sel bits */
4832 	ctrl |= (E1000_CTRL_SLU |	/* Force Link Up */
4833 	    E1000_CTRL_FRCSPD |		/* Set the Force Speed Bit */
4834 	    E1000_CTRL_FRCDPX |		/* Set the Force Duplex Bit */
4835 	    E1000_CTRL_SPD_10 |		/* Force Speed to 10 */
4836 	    E1000_CTRL_FD);		/* Force Duplex to FULL */
4837 
4838 	E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
4839 }
4840 
4841 #ifdef __sparc
4842 static boolean_t
4843 e1000g_find_mac_address(struct e1000g *Adapter)
4844 {
4845 	struct e1000_hw *hw = &Adapter->shared;
4846 	uchar_t *bytes;
4847 	struct ether_addr sysaddr;
4848 	uint_t nelts;
4849 	int err;
4850 	boolean_t found = B_FALSE;
4851 
4852 	/*
4853 	 * The "vendor's factory-set address" may already have
4854 	 * been extracted from the chip, but if the property
4855 	 * "local-mac-address" is set we use that instead.
4856 	 *
4857 	 * We check whether it looks like an array of 6
4858 	 * bytes (which it should, if OBP set it).  If we can't
4859 	 * make sense of it this way, we'll ignore it.
4860 	 */
4861 	err = ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, Adapter->dip,
4862 	    DDI_PROP_DONTPASS, "local-mac-address", &bytes, &nelts);
4863 	if (err == DDI_PROP_SUCCESS) {
4864 		if (nelts == ETHERADDRL) {
4865 			while (nelts--)
4866 				hw->mac.addr[nelts] = bytes[nelts];
4867 			found = B_TRUE;
4868 		}
4869 		ddi_prop_free(bytes);
4870 	}
4871 
4872 	/*
4873 	 * Look up the OBP property "local-mac-address?". If the user has set
4874 	 * 'local-mac-address? = false', use "the system address" instead.
4875 	 */
4876 	if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, Adapter->dip, 0,
4877 	    "local-mac-address?", &bytes, &nelts) == DDI_PROP_SUCCESS) {
4878 		if (strncmp("false", (caddr_t)bytes, (size_t)nelts) == 0) {
4879 			if (localetheraddr(NULL, &sysaddr) != 0) {
4880 				bcopy(&sysaddr, hw->mac.addr, ETHERADDRL);
4881 				found = B_TRUE;
4882 			}
4883 		}
4884 		ddi_prop_free(bytes);
4885 	}
4886 
4887 	/*
4888 	 * Finally(!), if there's a valid "mac-address" property (created
4889 	 * if we netbooted from this interface), we must use this instead
4890 	 * of any of the above to ensure that the NFS/install server doesn't
4891 	 * get confused by the address changing as Solaris takes over!
4892 	 */
4893 	err = ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, Adapter->dip,
4894 	    DDI_PROP_DONTPASS, "mac-address", &bytes, &nelts);
4895 	if (err == DDI_PROP_SUCCESS) {
4896 		if (nelts == ETHERADDRL) {
4897 			while (nelts--)
4898 				hw->mac.addr[nelts] = bytes[nelts];
4899 			found = B_TRUE;
4900 		}
4901 		ddi_prop_free(bytes);
4902 	}
4903 
4904 	if (found) {
4905 		bcopy(hw->mac.addr, hw->mac.perm_addr,
4906 		    ETHERADDRL);
4907 	}
4908 
4909 	return (found);
4910 }
4911 #endif
4912 
4913 static int
4914 e1000g_add_intrs(struct e1000g *Adapter)
4915 {
4916 	dev_info_t *devinfo;
4917 	int intr_types;
4918 	int rc;
4919 
4920 	devinfo = Adapter->dip;
4921 
4922 	/* Get supported interrupt types */
4923 	rc = ddi_intr_get_supported_types(devinfo, &intr_types);
4924 
4925 	if (rc != DDI_SUCCESS) {
4926 		E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
4927 		    "Get supported interrupt types failed: %d\n", rc);
4928 		return (DDI_FAILURE);
4929 	}
4930 
4931 	/*
4932 	 * Based on Intel Technical Advisory document (TA-160), there are some
4933 	 * cases where some older Intel PCI-X NICs may "advertise" to the OS
4934 	 * that it supports MSI, but in fact has problems.
4935 	 * So we should only enable MSI for PCI-E NICs and disable MSI for old
4936 	 * PCI/PCI-X NICs.
4937 	 */
4938 	if (Adapter->shared.mac.type < e1000_82571)
4939 		Adapter->msi_enable = B_FALSE;
4940 
4941 	if ((intr_types & DDI_INTR_TYPE_MSI) && Adapter->msi_enable) {
4942 		rc = e1000g_intr_add(Adapter, DDI_INTR_TYPE_MSI);
4943 
4944 		if (rc != DDI_SUCCESS) {
4945 			E1000G_DEBUGLOG_0(Adapter, E1000G_WARN_LEVEL,
4946 			    "Add MSI failed, trying Legacy interrupts\n");
4947 		} else {
4948 			Adapter->intr_type = DDI_INTR_TYPE_MSI;
4949 		}
4950 	}
4951 
4952 	if ((Adapter->intr_type == 0) &&
4953 	    (intr_types & DDI_INTR_TYPE_FIXED)) {
4954 		rc = e1000g_intr_add(Adapter, DDI_INTR_TYPE_FIXED);
4955 
4956 		if (rc != DDI_SUCCESS) {
4957 			E1000G_DEBUGLOG_0(Adapter, E1000G_WARN_LEVEL,
4958 			    "Add Legacy interrupts failed\n");
4959 			return (DDI_FAILURE);
4960 		}
4961 
4962 		Adapter->intr_type = DDI_INTR_TYPE_FIXED;
4963 	}
4964 
4965 	if (Adapter->intr_type == 0) {
4966 		E1000G_DEBUGLOG_0(Adapter, E1000G_WARN_LEVEL,
4967 		    "No interrupts registered\n");
4968 		return (DDI_FAILURE);
4969 	}
4970 
4971 	return (DDI_SUCCESS);
4972 }
4973 
4974 /*
4975  * e1000g_intr_add() handles MSI/Legacy interrupts
4976  */
4977 static int
4978 e1000g_intr_add(struct e1000g *Adapter, int intr_type)
4979 {
4980 	dev_info_t *devinfo;
4981 	int count, avail, actual;
4982 	int x, y, rc, inum = 0;
4983 	int flag;
4984 	ddi_intr_handler_t *intr_handler;
4985 
4986 	devinfo = Adapter->dip;
4987 
4988 	/* get number of interrupts */
4989 	rc = ddi_intr_get_nintrs(devinfo, intr_type, &count);
4990 	if ((rc != DDI_SUCCESS) || (count == 0)) {
4991 		E1000G_DEBUGLOG_2(Adapter, E1000G_WARN_LEVEL,
4992 		    "Get interrupt number failed. Return: %d, count: %d\n",
4993 		    rc, count);
4994 		return (DDI_FAILURE);
4995 	}
4996 
4997 	/* get number of available interrupts */
4998 	rc = ddi_intr_get_navail(devinfo, intr_type, &avail);
4999 	if ((rc != DDI_SUCCESS) || (avail == 0)) {
5000 		E1000G_DEBUGLOG_2(Adapter, E1000G_WARN_LEVEL,
5001 		    "Get interrupt available number failed. "
5002 		    "Return: %d, available: %d\n", rc, avail);
5003 		return (DDI_FAILURE);
5004 	}
5005 
5006 	if (avail < count) {
5007 		E1000G_DEBUGLOG_2(Adapter, E1000G_WARN_LEVEL,
5008 		    "Interrupts count: %d, available: %d\n",
5009 		    count, avail);
5010 	}
5011 
5012 	/* Allocate an array of interrupt handles */
5013 	Adapter->intr_size = count * sizeof (ddi_intr_handle_t);
5014 	Adapter->htable = kmem_alloc(Adapter->intr_size, KM_SLEEP);
5015 
5016 	/* Set NORMAL behavior for both MSI and FIXED interrupt */
5017 	flag = DDI_INTR_ALLOC_NORMAL;
5018 
5019 	/* call ddi_intr_alloc() */
5020 	rc = ddi_intr_alloc(devinfo, Adapter->htable, intr_type, inum,
5021 	    count, &actual, flag);
5022 
5023 	if ((rc != DDI_SUCCESS) || (actual == 0)) {
5024 		E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5025 		    "Allocate interrupts failed: %d\n", rc);
5026 
5027 		kmem_free(Adapter->htable, Adapter->intr_size);
5028 		return (DDI_FAILURE);
5029 	}
5030 
5031 	if (actual < count) {
5032 		E1000G_DEBUGLOG_2(Adapter, E1000G_WARN_LEVEL,
5033 		    "Interrupts requested: %d, received: %d\n",
5034 		    count, actual);
5035 	}
5036 
5037 	Adapter->intr_cnt = actual;
5038 
5039 	/* Get priority for first msi, assume remaining are all the same */
5040 	rc = ddi_intr_get_pri(Adapter->htable[0], &Adapter->intr_pri);
5041 
5042 	if (rc != DDI_SUCCESS) {
5043 		E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5044 		    "Get interrupt priority failed: %d\n", rc);
5045 
5046 		/* Free already allocated intr */
5047 		for (y = 0; y < actual; y++)
5048 			(void) ddi_intr_free(Adapter->htable[y]);
5049 
5050 		kmem_free(Adapter->htable, Adapter->intr_size);
5051 		return (DDI_FAILURE);
5052 	}
5053 
5054 	/*
5055 	 * In Legacy Interrupt mode, for PCI-Express adapters, we should
5056 	 * use the interrupt service routine e1000g_intr_pciexpress()
5057 	 * to avoid interrupt stealing when sharing interrupt with other
5058 	 * devices.
5059 	 */
5060 	if (Adapter->shared.mac.type < e1000_82571)
5061 		intr_handler = (ddi_intr_handler_t *)e1000g_intr;
5062 	else
5063 		intr_handler = (ddi_intr_handler_t *)e1000g_intr_pciexpress;
5064 
5065 	/* Call ddi_intr_add_handler() */
5066 	for (x = 0; x < actual; x++) {
5067 		rc = ddi_intr_add_handler(Adapter->htable[x],
5068 		    intr_handler, (caddr_t)Adapter, NULL);
5069 
5070 		if (rc != DDI_SUCCESS) {
5071 			E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5072 			    "Add interrupt handler failed: %d\n", rc);
5073 
5074 			/* Remove already added handler */
5075 			for (y = 0; y < x; y++)
5076 				(void) ddi_intr_remove_handler(
5077 				    Adapter->htable[y]);
5078 
5079 			/* Free already allocated intr */
5080 			for (y = 0; y < actual; y++)
5081 				(void) ddi_intr_free(Adapter->htable[y]);
5082 
5083 			kmem_free(Adapter->htable, Adapter->intr_size);
5084 			return (DDI_FAILURE);
5085 		}
5086 	}
5087 
5088 	rc = ddi_intr_get_cap(Adapter->htable[0], &Adapter->intr_cap);
5089 
5090 	if (rc != DDI_SUCCESS) {
5091 		E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5092 		    "Get interrupt cap failed: %d\n", rc);
5093 
5094 		/* Free already allocated intr */
5095 		for (y = 0; y < actual; y++) {
5096 			(void) ddi_intr_remove_handler(Adapter->htable[y]);
5097 			(void) ddi_intr_free(Adapter->htable[y]);
5098 		}
5099 
5100 		kmem_free(Adapter->htable, Adapter->intr_size);
5101 		return (DDI_FAILURE);
5102 	}
5103 
5104 	return (DDI_SUCCESS);
5105 }
5106 
5107 static int
5108 e1000g_rem_intrs(struct e1000g *Adapter)
5109 {
5110 	int x;
5111 	int rc;
5112 
5113 	for (x = 0; x < Adapter->intr_cnt; x++) {
5114 		rc = ddi_intr_remove_handler(Adapter->htable[x]);
5115 		if (rc != DDI_SUCCESS) {
5116 			E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5117 			    "Remove intr handler failed: %d\n", rc);
5118 			return (DDI_FAILURE);
5119 		}
5120 
5121 		rc = ddi_intr_free(Adapter->htable[x]);
5122 		if (rc != DDI_SUCCESS) {
5123 			E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5124 			    "Free intr failed: %d\n", rc);
5125 			return (DDI_FAILURE);
5126 		}
5127 	}
5128 
5129 	kmem_free(Adapter->htable, Adapter->intr_size);
5130 
5131 	return (DDI_SUCCESS);
5132 }
5133 
5134 static int
5135 e1000g_enable_intrs(struct e1000g *Adapter)
5136 {
5137 	int x;
5138 	int rc;
5139 
5140 	/* Enable interrupts */
5141 	if (Adapter->intr_cap & DDI_INTR_FLAG_BLOCK) {
5142 		/* Call ddi_intr_block_enable() for MSI */
5143 		rc = ddi_intr_block_enable(Adapter->htable,
5144 		    Adapter->intr_cnt);
5145 		if (rc != DDI_SUCCESS) {
5146 			E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5147 			    "Enable block intr failed: %d\n", rc);
5148 			return (DDI_FAILURE);
5149 		}
5150 	} else {
5151 		/* Call ddi_intr_enable() for Legacy/MSI non block enable */
5152 		for (x = 0; x < Adapter->intr_cnt; x++) {
5153 			rc = ddi_intr_enable(Adapter->htable[x]);
5154 			if (rc != DDI_SUCCESS) {
5155 				E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5156 				    "Enable intr failed: %d\n", rc);
5157 				return (DDI_FAILURE);
5158 			}
5159 		}
5160 	}
5161 
5162 	return (DDI_SUCCESS);
5163 }
5164 
5165 static int
5166 e1000g_disable_intrs(struct e1000g *Adapter)
5167 {
5168 	int x;
5169 	int rc;
5170 
5171 	/* Disable all interrupts */
5172 	if (Adapter->intr_cap & DDI_INTR_FLAG_BLOCK) {
5173 		rc = ddi_intr_block_disable(Adapter->htable,
5174 		    Adapter->intr_cnt);
5175 		if (rc != DDI_SUCCESS) {
5176 			E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5177 			    "Disable block intr failed: %d\n", rc);
5178 			return (DDI_FAILURE);
5179 		}
5180 	} else {
5181 		for (x = 0; x < Adapter->intr_cnt; x++) {
5182 			rc = ddi_intr_disable(Adapter->htable[x]);
5183 			if (rc != DDI_SUCCESS) {
5184 				E1000G_DEBUGLOG_1(Adapter, E1000G_WARN_LEVEL,
5185 				    "Disable intr failed: %d\n", rc);
5186 				return (DDI_FAILURE);
5187 			}
5188 		}
5189 	}
5190 
5191 	return (DDI_SUCCESS);
5192 }
5193 
5194 /*
5195  * e1000g_get_phy_state - get the state of PHY registers, save in the adapter
5196  */
5197 static void
5198 e1000g_get_phy_state(struct e1000g *Adapter)
5199 {
5200 	struct e1000_hw *hw = &Adapter->shared;
5201 
5202 	e1000_read_phy_reg(hw, PHY_CONTROL, &Adapter->phy_ctrl);
5203 	e1000_read_phy_reg(hw, PHY_STATUS, &Adapter->phy_status);
5204 	e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &Adapter->phy_an_adv);
5205 	e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &Adapter->phy_an_exp);
5206 	e1000_read_phy_reg(hw, PHY_EXT_STATUS, &Adapter->phy_ext_status);
5207 	e1000_read_phy_reg(hw, PHY_1000T_CTRL, &Adapter->phy_1000t_ctrl);
5208 	e1000_read_phy_reg(hw, PHY_1000T_STATUS, &Adapter->phy_1000t_status);
5209 	e1000_read_phy_reg(hw, PHY_LP_ABILITY, &Adapter->phy_lp_able);
5210 
5211 	Adapter->param_autoneg_cap =
5212 	    (Adapter->phy_status & MII_SR_AUTONEG_CAPS) ? 1 : 0;
5213 	Adapter->param_pause_cap =
5214 	    (Adapter->phy_an_adv & NWAY_AR_PAUSE) ? 1 : 0;
5215 	Adapter->param_asym_pause_cap =
5216 	    (Adapter->phy_an_adv & NWAY_AR_ASM_DIR) ? 1 : 0;
5217 	Adapter->param_1000fdx_cap =
5218 	    ((Adapter->phy_ext_status & IEEE_ESR_1000T_FD_CAPS) ||
5219 	    (Adapter->phy_ext_status & IEEE_ESR_1000X_FD_CAPS)) ? 1 : 0;
5220 	Adapter->param_1000hdx_cap =
5221 	    ((Adapter->phy_ext_status & IEEE_ESR_1000T_HD_CAPS) ||
5222 	    (Adapter->phy_ext_status & IEEE_ESR_1000X_HD_CAPS)) ? 1 : 0;
5223 	Adapter->param_100t4_cap =
5224 	    (Adapter->phy_status & MII_SR_100T4_CAPS) ? 1 : 0;
5225 	Adapter->param_100fdx_cap =
5226 	    ((Adapter->phy_status & MII_SR_100X_FD_CAPS) ||
5227 	    (Adapter->phy_status & MII_SR_100T2_FD_CAPS)) ? 1 : 0;
5228 	Adapter->param_100hdx_cap =
5229 	    ((Adapter->phy_status & MII_SR_100X_HD_CAPS) ||
5230 	    (Adapter->phy_status & MII_SR_100T2_HD_CAPS)) ? 1 : 0;
5231 	Adapter->param_10fdx_cap =
5232 	    (Adapter->phy_status & MII_SR_10T_FD_CAPS) ? 1 : 0;
5233 	Adapter->param_10hdx_cap =
5234 	    (Adapter->phy_status & MII_SR_10T_HD_CAPS) ? 1 : 0;
5235 
5236 	Adapter->param_adv_autoneg = hw->mac.autoneg;
5237 	Adapter->param_adv_pause =
5238 	    (Adapter->phy_an_adv & NWAY_AR_PAUSE) ? 1 : 0;
5239 	Adapter->param_adv_asym_pause =
5240 	    (Adapter->phy_an_adv & NWAY_AR_ASM_DIR) ? 1 : 0;
5241 	Adapter->param_adv_1000hdx =
5242 	    (Adapter->phy_1000t_ctrl & CR_1000T_HD_CAPS) ? 1 : 0;
5243 	Adapter->param_adv_100t4 =
5244 	    (Adapter->phy_an_adv & NWAY_AR_100T4_CAPS) ? 1 : 0;
5245 	if (Adapter->param_adv_autoneg == 1) {
5246 		Adapter->param_adv_1000fdx =
5247 		    (Adapter->phy_1000t_ctrl & CR_1000T_FD_CAPS) ? 1 : 0;
5248 		Adapter->param_adv_100fdx =
5249 		    (Adapter->phy_an_adv & NWAY_AR_100TX_FD_CAPS) ? 1 : 0;
5250 		Adapter->param_adv_100hdx =
5251 		    (Adapter->phy_an_adv & NWAY_AR_100TX_HD_CAPS) ? 1 : 0;
5252 		Adapter->param_adv_10fdx =
5253 		    (Adapter->phy_an_adv & NWAY_AR_10T_FD_CAPS) ? 1 : 0;
5254 		Adapter->param_adv_10hdx =
5255 		    (Adapter->phy_an_adv & NWAY_AR_10T_HD_CAPS) ? 1 : 0;
5256 	}
5257 
5258 	Adapter->param_lp_autoneg =
5259 	    (Adapter->phy_an_exp & NWAY_ER_LP_NWAY_CAPS) ? 1 : 0;
5260 	Adapter->param_lp_pause =
5261 	    (Adapter->phy_lp_able & NWAY_LPAR_PAUSE) ? 1 : 0;
5262 	Adapter->param_lp_asym_pause =
5263 	    (Adapter->phy_lp_able & NWAY_LPAR_ASM_DIR) ? 1 : 0;
5264 	Adapter->param_lp_1000fdx =
5265 	    (Adapter->phy_1000t_status & SR_1000T_LP_FD_CAPS) ? 1 : 0;
5266 	Adapter->param_lp_1000hdx =
5267 	    (Adapter->phy_1000t_status & SR_1000T_LP_HD_CAPS) ? 1 : 0;
5268 	Adapter->param_lp_100t4 =
5269 	    (Adapter->phy_lp_able & NWAY_LPAR_100T4_CAPS) ? 1 : 0;
5270 	Adapter->param_lp_100fdx =
5271 	    (Adapter->phy_lp_able & NWAY_LPAR_100TX_FD_CAPS) ? 1 : 0;
5272 	Adapter->param_lp_100hdx =
5273 	    (Adapter->phy_lp_able & NWAY_LPAR_100TX_HD_CAPS) ? 1 : 0;
5274 	Adapter->param_lp_10fdx =
5275 	    (Adapter->phy_lp_able & NWAY_LPAR_10T_FD_CAPS) ? 1 : 0;
5276 	Adapter->param_lp_10hdx =
5277 	    (Adapter->phy_lp_able & NWAY_LPAR_10T_HD_CAPS) ? 1 : 0;
5278 }
5279 
5280 /*
5281  * FMA support
5282  */
5283 
5284 int
5285 e1000g_check_acc_handle(ddi_acc_handle_t handle)
5286 {
5287 	ddi_fm_error_t de;
5288 
5289 	ddi_fm_acc_err_get(handle, &de, DDI_FME_VERSION);
5290 	ddi_fm_acc_err_clear(handle, DDI_FME_VERSION);
5291 	return (de.fme_status);
5292 }
5293 
5294 int
5295 e1000g_check_dma_handle(ddi_dma_handle_t handle)
5296 {
5297 	ddi_fm_error_t de;
5298 
5299 	ddi_fm_dma_err_get(handle, &de, DDI_FME_VERSION);
5300 	return (de.fme_status);
5301 }
5302 
5303 /*
5304  * The IO fault service error handling callback function
5305  */
5306 static int
5307 e1000g_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err, const void *impl_data)
5308 {
5309 	/*
5310 	 * as the driver can always deal with an error in any dma or
5311 	 * access handle, we can just return the fme_status value.
5312 	 */
5313 	pci_ereport_post(dip, err, NULL);
5314 	return (err->fme_status);
5315 }
5316 
5317 static void
5318 e1000g_fm_init(struct e1000g *Adapter)
5319 {
5320 	ddi_iblock_cookie_t iblk;
5321 	int fma_acc_flag, fma_dma_flag;
5322 
5323 	/* Only register with IO Fault Services if we have some capability */
5324 	if (Adapter->fm_capabilities & DDI_FM_ACCCHK_CAPABLE) {
5325 		e1000g_regs_acc_attr.devacc_attr_access = DDI_FLAGERR_ACC;
5326 		fma_acc_flag = 1;
5327 	} else {
5328 		e1000g_regs_acc_attr.devacc_attr_access = DDI_DEFAULT_ACC;
5329 		fma_acc_flag = 0;
5330 	}
5331 
5332 	if (Adapter->fm_capabilities & DDI_FM_DMACHK_CAPABLE) {
5333 		fma_dma_flag = 1;
5334 	} else {
5335 		fma_dma_flag = 0;
5336 	}
5337 
5338 	(void) e1000g_set_fma_flags(Adapter, fma_acc_flag, fma_dma_flag);
5339 
5340 	if (Adapter->fm_capabilities) {
5341 
5342 		/* Register capabilities with IO Fault Services */
5343 		ddi_fm_init(Adapter->dip, &Adapter->fm_capabilities, &iblk);
5344 
5345 		/*
5346 		 * Initialize pci ereport capabilities if ereport capable
5347 		 */
5348 		if (DDI_FM_EREPORT_CAP(Adapter->fm_capabilities) ||
5349 		    DDI_FM_ERRCB_CAP(Adapter->fm_capabilities))
5350 			pci_ereport_setup(Adapter->dip);
5351 
5352 		/*
5353 		 * Register error callback if error callback capable
5354 		 */
5355 		if (DDI_FM_ERRCB_CAP(Adapter->fm_capabilities))
5356 			ddi_fm_handler_register(Adapter->dip,
5357 			    e1000g_fm_error_cb, (void*) Adapter);
5358 	}
5359 }
5360 
5361 static void
5362 e1000g_fm_fini(struct e1000g *Adapter)
5363 {
5364 	/* Only unregister FMA capabilities if we registered some */
5365 	if (Adapter->fm_capabilities) {
5366 
5367 		/*
5368 		 * Release any resources allocated by pci_ereport_setup()
5369 		 */
5370 		if (DDI_FM_EREPORT_CAP(Adapter->fm_capabilities) ||
5371 		    DDI_FM_ERRCB_CAP(Adapter->fm_capabilities))
5372 			pci_ereport_teardown(Adapter->dip);
5373 
5374 		/*
5375 		 * Un-register error callback if error callback capable
5376 		 */
5377 		if (DDI_FM_ERRCB_CAP(Adapter->fm_capabilities))
5378 			ddi_fm_handler_unregister(Adapter->dip);
5379 
5380 		/* Unregister from IO Fault Services */
5381 		ddi_fm_fini(Adapter->dip);
5382 	}
5383 }
5384 
5385 void
5386 e1000g_fm_ereport(struct e1000g *Adapter, char *detail)
5387 {
5388 	uint64_t ena;
5389 	char buf[FM_MAX_CLASS];
5390 
5391 	(void) snprintf(buf, FM_MAX_CLASS, "%s.%s", DDI_FM_DEVICE, detail);
5392 	ena = fm_ena_generate(0, FM_ENA_FMT1);
5393 	if (DDI_FM_EREPORT_CAP(Adapter->fm_capabilities)) {
5394 		ddi_fm_ereport_post(Adapter->dip, buf, ena, DDI_NOSLEEP,
5395 		    FM_VERSION, DATA_TYPE_UINT8, FM_EREPORT_VERS0, NULL);
5396 	}
5397 }
5398 
5399 static int
5400 e1000g_get_def_val(struct e1000g *Adapter, mac_prop_id_t pr_num,
5401     uint_t pr_valsize, void *pr_val)
5402 {
5403 	link_flowctrl_t fl;
5404 	uint32_t fc;
5405 	int err = 0;
5406 
5407 	ASSERT(pr_valsize > 0);
5408 	switch (pr_num) {
5409 	case MAC_PROP_AUTONEG:
5410 		*(uint8_t *)pr_val =
5411 		    ((Adapter->phy_status & MII_SR_AUTONEG_CAPS) ? 1 : 0);
5412 		break;
5413 	case MAC_PROP_FLOWCTRL:
5414 		if (pr_valsize < sizeof (link_flowctrl_t))
5415 			return (EINVAL);
5416 		fl = LINK_FLOWCTRL_BI;
5417 		bcopy(&fl, pr_val, sizeof (fl));
5418 		break;
5419 	case MAC_PROP_ADV_1000FDX_CAP:
5420 	case MAC_PROP_EN_1000FDX_CAP:
5421 		*(uint8_t *)pr_val =
5422 		    ((Adapter->phy_ext_status & IEEE_ESR_1000T_FD_CAPS) ||
5423 		    (Adapter->phy_ext_status & IEEE_ESR_1000X_FD_CAPS)) ? 1 : 0;
5424 		break;
5425 	case MAC_PROP_ADV_1000HDX_CAP:
5426 	case MAC_PROP_EN_1000HDX_CAP:
5427 		*(uint8_t *)pr_val =
5428 		    ((Adapter->phy_ext_status & IEEE_ESR_1000T_HD_CAPS) ||
5429 		    (Adapter->phy_ext_status & IEEE_ESR_1000X_HD_CAPS)) ? 1 : 0;
5430 		break;
5431 	case MAC_PROP_ADV_100FDX_CAP:
5432 	case MAC_PROP_EN_100FDX_CAP:
5433 		*(uint8_t *)pr_val =
5434 		    ((Adapter->phy_status & MII_SR_100X_FD_CAPS) ||
5435 		    (Adapter->phy_status & MII_SR_100T2_FD_CAPS)) ? 1 : 0;
5436 	case MAC_PROP_ADV_100HDX_CAP:
5437 	case MAC_PROP_EN_100HDX_CAP:
5438 		*(uint8_t *)pr_val =
5439 		    ((Adapter->phy_status & MII_SR_100X_HD_CAPS) ||
5440 		    (Adapter->phy_status & MII_SR_100T2_HD_CAPS)) ? 1 : 0;
5441 		break;
5442 	case MAC_PROP_ADV_10FDX_CAP:
5443 	case MAC_PROP_EN_10FDX_CAP:
5444 		*(uint8_t *)pr_val =
5445 		    (Adapter->phy_status & MII_SR_10T_FD_CAPS) ? 1 : 0;
5446 		break;
5447 	case MAC_PROP_ADV_10HDX_CAP:
5448 	case MAC_PROP_EN_10HDX_CAP:
5449 		*(uint8_t *)pr_val =
5450 		    (Adapter->phy_status & MII_SR_10T_HD_CAPS) ? 1 : 0;
5451 		break;
5452 	default:
5453 		err = ENOTSUP;
5454 		break;
5455 	}
5456 	return (err);
5457 }
5458 
5459 /*
5460  * synchronize the adv* and en* parameters.
5461  *
5462  * See comments in <sys/dld.h> for details of the *_en_*
5463  * parameters. The usage of ndd for setting adv parameters will
5464  * synchronize all the en parameters with the e1000g parameters,
5465  * implicity disalbing any settings made via dladm.
5466  */
5467 static void
5468 e1000g_param_sync(struct e1000g *Adapter)
5469 {
5470 	Adapter->param_en_1000fdx = Adapter->param_adv_1000fdx;
5471 	Adapter->param_en_1000hdx = Adapter->param_adv_1000hdx;
5472 	Adapter->param_en_100fdx = Adapter->param_adv_100fdx;
5473 	Adapter->param_en_100hdx = Adapter->param_adv_100hdx;
5474 	Adapter->param_en_10fdx = Adapter->param_adv_10fdx;
5475 	Adapter->param_en_10hdx = Adapter->param_adv_10hdx;
5476 }
5477