xref: /titanic_50/usr/src/uts/common/io/nxge/nxge_main.c (revision 2df1fe9ca32bb227b9158c67f5c00b54c20b10fd)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 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  * SunOs MT STREAMS NIU/Neptune 10Gb Ethernet Device Driver.
30  */
31 #include	<sys/nxge/nxge_impl.h>
32 #include	<sys/pcie.h>
33 
34 uint32_t 	nxge_use_partition = 0;		/* debug partition flag */
35 uint32_t 	nxge_dma_obp_props_only = 1;	/* use obp published props */
36 uint32_t 	nxge_use_rdc_intr = 1;		/* debug to assign rdc intr */
37 /*
38  * PSARC/2007/453 MSI-X interrupt limit override
39  * (This PSARC case is limited to MSI-X vectors
40  *  and SPARC platforms only).
41  */
42 #if defined(_BIG_ENDIAN)
43 uint32_t	nxge_msi_enable = 2;
44 #else
45 uint32_t	nxge_msi_enable = 1;
46 #endif
47 
48 /*
49  * Globals: tunable parameters (/etc/system or adb)
50  *
51  */
52 uint32_t 	nxge_rbr_size = NXGE_RBR_RBB_DEFAULT;
53 uint32_t 	nxge_rbr_spare_size = 0;
54 uint32_t 	nxge_rcr_size = NXGE_RCR_DEFAULT;
55 uint32_t 	nxge_tx_ring_size = NXGE_TX_RING_DEFAULT;
56 boolean_t 	nxge_no_msg = B_TRUE;		/* control message display */
57 uint32_t 	nxge_no_link_notify = 0;	/* control DL_NOTIFY */
58 uint32_t 	nxge_bcopy_thresh = TX_BCOPY_MAX;
59 uint32_t 	nxge_dvma_thresh = TX_FASTDVMA_MIN;
60 uint32_t 	nxge_dma_stream_thresh = TX_STREAM_MIN;
61 uint32_t	nxge_jumbo_mtu	= TX_JUMBO_MTU;
62 boolean_t	nxge_jumbo_enable = B_FALSE;
63 uint16_t	nxge_rcr_timeout = NXGE_RDC_RCR_TIMEOUT;
64 uint16_t	nxge_rcr_threshold = NXGE_RDC_RCR_THRESHOLD;
65 nxge_tx_mode_t	nxge_tx_scheme = NXGE_USE_SERIAL;
66 
67 /*
68  * Debugging flags:
69  *		nxge_no_tx_lb : transmit load balancing
70  *		nxge_tx_lb_policy: 0 - TCP port (default)
71  *				   3 - DEST MAC
72  */
73 uint32_t 	nxge_no_tx_lb = 0;
74 uint32_t 	nxge_tx_lb_policy = NXGE_TX_LB_TCPUDP;
75 
76 /*
77  * Add tunable to reduce the amount of time spent in the
78  * ISR doing Rx Processing.
79  */
80 uint32_t nxge_max_rx_pkts = 1024;
81 
82 /*
83  * Tunables to manage the receive buffer blocks.
84  *
85  * nxge_rx_threshold_hi: copy all buffers.
86  * nxge_rx_bcopy_size_type: receive buffer block size type.
87  * nxge_rx_threshold_lo: copy only up to tunable block size type.
88  */
89 nxge_rxbuf_threshold_t nxge_rx_threshold_hi = NXGE_RX_COPY_6;
90 nxge_rxbuf_type_t nxge_rx_buf_size_type = RCR_PKTBUFSZ_0;
91 nxge_rxbuf_threshold_t nxge_rx_threshold_lo = NXGE_RX_COPY_3;
92 
93 rtrace_t npi_rtracebuf;
94 
95 #if	defined(sun4v)
96 /*
97  * Hypervisor N2/NIU services information.
98  */
99 static hsvc_info_t niu_hsvc = {
100 	HSVC_REV_1, NULL, HSVC_GROUP_NIU, NIU_MAJOR_VER,
101 	NIU_MINOR_VER, "nxge"
102 };
103 #endif
104 
105 /*
106  * Function Prototypes
107  */
108 static int nxge_attach(dev_info_t *, ddi_attach_cmd_t);
109 static int nxge_detach(dev_info_t *, ddi_detach_cmd_t);
110 static void nxge_unattach(p_nxge_t);
111 
112 #if NXGE_PROPERTY
113 static void nxge_remove_hard_properties(p_nxge_t);
114 #endif
115 
116 static nxge_status_t nxge_setup_system_dma_pages(p_nxge_t);
117 
118 static nxge_status_t nxge_setup_mutexes(p_nxge_t);
119 static void nxge_destroy_mutexes(p_nxge_t);
120 
121 static nxge_status_t nxge_map_regs(p_nxge_t nxgep);
122 static void nxge_unmap_regs(p_nxge_t nxgep);
123 #ifdef	NXGE_DEBUG
124 static void nxge_test_map_regs(p_nxge_t nxgep);
125 #endif
126 
127 static nxge_status_t nxge_add_intrs(p_nxge_t nxgep);
128 static nxge_status_t nxge_add_soft_intrs(p_nxge_t nxgep);
129 static void nxge_remove_intrs(p_nxge_t nxgep);
130 static void nxge_remove_soft_intrs(p_nxge_t nxgep);
131 
132 static nxge_status_t nxge_add_intrs_adv(p_nxge_t nxgep);
133 static nxge_status_t nxge_add_intrs_adv_type(p_nxge_t, uint32_t);
134 static nxge_status_t nxge_add_intrs_adv_type_fix(p_nxge_t, uint32_t);
135 static void nxge_intrs_enable(p_nxge_t nxgep);
136 static void nxge_intrs_disable(p_nxge_t nxgep);
137 
138 static void nxge_suspend(p_nxge_t);
139 static nxge_status_t nxge_resume(p_nxge_t);
140 
141 static nxge_status_t nxge_setup_dev(p_nxge_t);
142 static void nxge_destroy_dev(p_nxge_t);
143 
144 static nxge_status_t nxge_alloc_mem_pool(p_nxge_t);
145 static void nxge_free_mem_pool(p_nxge_t);
146 
147 static nxge_status_t nxge_alloc_rx_mem_pool(p_nxge_t);
148 static void nxge_free_rx_mem_pool(p_nxge_t);
149 
150 static nxge_status_t nxge_alloc_tx_mem_pool(p_nxge_t);
151 static void nxge_free_tx_mem_pool(p_nxge_t);
152 
153 static nxge_status_t nxge_dma_mem_alloc(p_nxge_t, dma_method_t,
154 	struct ddi_dma_attr *,
155 	size_t, ddi_device_acc_attr_t *, uint_t,
156 	p_nxge_dma_common_t);
157 
158 static void nxge_dma_mem_free(p_nxge_dma_common_t);
159 
160 static nxge_status_t nxge_alloc_rx_buf_dma(p_nxge_t, uint16_t,
161 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
162 static void nxge_free_rx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
163 
164 static nxge_status_t nxge_alloc_rx_cntl_dma(p_nxge_t, uint16_t,
165 	p_nxge_dma_common_t *, size_t);
166 static void nxge_free_rx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
167 
168 static nxge_status_t nxge_alloc_tx_buf_dma(p_nxge_t, uint16_t,
169 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
170 static void nxge_free_tx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
171 
172 static nxge_status_t nxge_alloc_tx_cntl_dma(p_nxge_t, uint16_t,
173 	p_nxge_dma_common_t *,
174 	size_t);
175 static void nxge_free_tx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
176 
177 static int nxge_init_common_dev(p_nxge_t);
178 static void nxge_uninit_common_dev(p_nxge_t);
179 
180 /*
181  * The next declarations are for the GLDv3 interface.
182  */
183 static int nxge_m_start(void *);
184 static void nxge_m_stop(void *);
185 static int nxge_m_unicst(void *, const uint8_t *);
186 static int nxge_m_multicst(void *, boolean_t, const uint8_t *);
187 static int nxge_m_promisc(void *, boolean_t);
188 static void nxge_m_ioctl(void *, queue_t *, mblk_t *);
189 static void nxge_m_resources(void *);
190 mblk_t *nxge_m_tx(void *arg, mblk_t *);
191 static nxge_status_t nxge_mac_register(p_nxge_t);
192 static int nxge_altmac_set(p_nxge_t nxgep, uint8_t *mac_addr,
193 	mac_addr_slot_t slot);
194 static void nxge_mmac_kstat_update(p_nxge_t nxgep, mac_addr_slot_t slot,
195 	boolean_t factory);
196 static int nxge_m_mmac_add(void *arg, mac_multi_addr_t *maddr);
197 static int nxge_m_mmac_reserve(void *arg, mac_multi_addr_t *maddr);
198 static int nxge_m_mmac_remove(void *arg, mac_addr_slot_t slot);
199 static int nxge_m_mmac_modify(void *arg, mac_multi_addr_t *maddr);
200 static int nxge_m_mmac_get(void *arg, mac_multi_addr_t *maddr);
201 
202 #define	NXGE_NEPTUNE_MAGIC	0x4E584745UL
203 #define	MAX_DUMP_SZ 256
204 
205 #define	NXGE_M_CALLBACK_FLAGS	(MC_RESOURCES | MC_IOCTL | MC_GETCAPAB)
206 
207 static	boolean_t	nxge_m_getcapab(void *, mac_capab_t, void *);
208 static mac_callbacks_t nxge_m_callbacks = {
209 	NXGE_M_CALLBACK_FLAGS,
210 	nxge_m_stat,
211 	nxge_m_start,
212 	nxge_m_stop,
213 	nxge_m_promisc,
214 	nxge_m_multicst,
215 	nxge_m_unicst,
216 	nxge_m_tx,
217 	nxge_m_resources,
218 	nxge_m_ioctl,
219 	nxge_m_getcapab
220 };
221 
222 void
223 nxge_err_inject(p_nxge_t, queue_t *, mblk_t *);
224 
225 /* PSARC/2007/453 MSI-X interrupt limit override. */
226 #define	NXGE_MSIX_REQUEST_10G	8
227 #define	NXGE_MSIX_REQUEST_1G	2
228 static int nxge_create_msi_property(p_nxge_t);
229 
230 /*
231  * These global variables control the message
232  * output.
233  */
234 out_dbgmsg_t nxge_dbgmsg_out = DBG_CONSOLE | STR_LOG;
235 uint64_t nxge_debug_level = 0;
236 
237 /*
238  * This list contains the instance structures for the Neptune
239  * devices present in the system. The lock exists to guarantee
240  * mutually exclusive access to the list.
241  */
242 void 			*nxge_list = NULL;
243 
244 void			*nxge_hw_list = NULL;
245 nxge_os_mutex_t 	nxge_common_lock;
246 
247 nxge_os_mutex_t		nxge_mii_lock;
248 static uint32_t		nxge_mii_lock_init = 0;
249 nxge_os_mutex_t		nxge_mdio_lock;
250 static uint32_t		nxge_mdio_lock_init = 0;
251 
252 extern uint64_t 	npi_debug_level;
253 
254 extern nxge_status_t	nxge_ldgv_init(p_nxge_t, int *, int *);
255 extern nxge_status_t	nxge_ldgv_init_n2(p_nxge_t, int *, int *);
256 extern nxge_status_t	nxge_ldgv_uninit(p_nxge_t);
257 extern nxge_status_t	nxge_intr_ldgv_init(p_nxge_t);
258 extern void		nxge_fm_init(p_nxge_t,
259 					ddi_device_acc_attr_t *,
260 					ddi_device_acc_attr_t *,
261 					ddi_dma_attr_t *);
262 extern void		nxge_fm_fini(p_nxge_t);
263 extern npi_status_t	npi_mac_altaddr_disable(npi_handle_t, uint8_t, uint8_t);
264 
265 /*
266  * Count used to maintain the number of buffers being used
267  * by Neptune instances and loaned up to the upper layers.
268  */
269 uint32_t nxge_mblks_pending = 0;
270 
271 /*
272  * Device register access attributes for PIO.
273  */
274 static ddi_device_acc_attr_t nxge_dev_reg_acc_attr = {
275 	DDI_DEVICE_ATTR_V0,
276 	DDI_STRUCTURE_LE_ACC,
277 	DDI_STRICTORDER_ACC,
278 };
279 
280 /*
281  * Device descriptor access attributes for DMA.
282  */
283 static ddi_device_acc_attr_t nxge_dev_desc_dma_acc_attr = {
284 	DDI_DEVICE_ATTR_V0,
285 	DDI_STRUCTURE_LE_ACC,
286 	DDI_STRICTORDER_ACC
287 };
288 
289 /*
290  * Device buffer access attributes for DMA.
291  */
292 static ddi_device_acc_attr_t nxge_dev_buf_dma_acc_attr = {
293 	DDI_DEVICE_ATTR_V0,
294 	DDI_STRUCTURE_BE_ACC,
295 	DDI_STRICTORDER_ACC
296 };
297 
298 ddi_dma_attr_t nxge_desc_dma_attr = {
299 	DMA_ATTR_V0,		/* version number. */
300 	0,			/* low address */
301 	0xffffffffffffffff,	/* high address */
302 	0xffffffffffffffff,	/* address counter max */
303 #ifndef NIU_PA_WORKAROUND
304 	0x100000,		/* alignment */
305 #else
306 	0x2000,
307 #endif
308 	0xfc00fc,		/* dlim_burstsizes */
309 	0x1,			/* minimum transfer size */
310 	0xffffffffffffffff,	/* maximum transfer size */
311 	0xffffffffffffffff,	/* maximum segment size */
312 	1,			/* scatter/gather list length */
313 	(unsigned int) 1,	/* granularity */
314 	0			/* attribute flags */
315 };
316 
317 ddi_dma_attr_t nxge_tx_dma_attr = {
318 	DMA_ATTR_V0,		/* version number. */
319 	0,			/* low address */
320 	0xffffffffffffffff,	/* high address */
321 	0xffffffffffffffff,	/* address counter max */
322 #if defined(_BIG_ENDIAN)
323 	0x2000,			/* alignment */
324 #else
325 	0x1000,			/* alignment */
326 #endif
327 	0xfc00fc,		/* dlim_burstsizes */
328 	0x1,			/* minimum transfer size */
329 	0xffffffffffffffff,	/* maximum transfer size */
330 	0xffffffffffffffff,	/* maximum segment size */
331 	5,			/* scatter/gather list length */
332 	(unsigned int) 1,	/* granularity */
333 	0			/* attribute flags */
334 };
335 
336 ddi_dma_attr_t nxge_rx_dma_attr = {
337 	DMA_ATTR_V0,		/* version number. */
338 	0,			/* low address */
339 	0xffffffffffffffff,	/* high address */
340 	0xffffffffffffffff,	/* address counter max */
341 	0x2000,			/* alignment */
342 	0xfc00fc,		/* dlim_burstsizes */
343 	0x1,			/* minimum transfer size */
344 	0xffffffffffffffff,	/* maximum transfer size */
345 	0xffffffffffffffff,	/* maximum segment size */
346 	1,			/* scatter/gather list length */
347 	(unsigned int) 1,	/* granularity */
348 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
349 };
350 
351 ddi_dma_lim_t nxge_dma_limits = {
352 	(uint_t)0,		/* dlim_addr_lo */
353 	(uint_t)0xffffffff,	/* dlim_addr_hi */
354 	(uint_t)0xffffffff,	/* dlim_cntr_max */
355 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
356 	0x1,			/* dlim_minxfer */
357 	1024			/* dlim_speed */
358 };
359 
360 dma_method_t nxge_force_dma = DVMA;
361 
362 /*
363  * dma chunk sizes.
364  *
365  * Try to allocate the largest possible size
366  * so that fewer number of dma chunks would be managed
367  */
368 #ifdef NIU_PA_WORKAROUND
369 size_t alloc_sizes [] = {0x2000};
370 #else
371 size_t alloc_sizes [] = {0x1000, 0x2000, 0x4000, 0x8000,
372 		0x10000, 0x20000, 0x40000, 0x80000,
373 		0x100000, 0x200000, 0x400000, 0x800000, 0x1000000};
374 #endif
375 
376 /*
377  * Translate "dev_t" to a pointer to the associated "dev_info_t".
378  */
379 
380 static int
381 nxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
382 {
383 	p_nxge_t	nxgep = NULL;
384 	int		instance;
385 	int		status = DDI_SUCCESS;
386 	uint8_t		portn;
387 	nxge_mmac_t	*mmac_info;
388 
389 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_attach"));
390 
391 	/*
392 	 * Get the device instance since we'll need to setup
393 	 * or retrieve a soft state for this instance.
394 	 */
395 	instance = ddi_get_instance(dip);
396 
397 	switch (cmd) {
398 	case DDI_ATTACH:
399 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_ATTACH"));
400 		break;
401 
402 	case DDI_RESUME:
403 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_RESUME"));
404 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
405 		if (nxgep == NULL) {
406 			status = DDI_FAILURE;
407 			break;
408 		}
409 		if (nxgep->dip != dip) {
410 			status = DDI_FAILURE;
411 			break;
412 		}
413 		if (nxgep->suspended == DDI_PM_SUSPEND) {
414 			status = ddi_dev_is_needed(nxgep->dip, 0, 1);
415 		} else {
416 			status = nxge_resume(nxgep);
417 		}
418 		goto nxge_attach_exit;
419 
420 	case DDI_PM_RESUME:
421 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_RESUME"));
422 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
423 		if (nxgep == NULL) {
424 			status = DDI_FAILURE;
425 			break;
426 		}
427 		if (nxgep->dip != dip) {
428 			status = DDI_FAILURE;
429 			break;
430 		}
431 		status = nxge_resume(nxgep);
432 		goto nxge_attach_exit;
433 
434 	default:
435 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing unknown"));
436 		status = DDI_FAILURE;
437 		goto nxge_attach_exit;
438 	}
439 
440 
441 	if (ddi_soft_state_zalloc(nxge_list, instance) == DDI_FAILURE) {
442 		status = DDI_FAILURE;
443 		goto nxge_attach_exit;
444 	}
445 
446 	nxgep = ddi_get_soft_state(nxge_list, instance);
447 	if (nxgep == NULL) {
448 		status = NXGE_ERROR;
449 		goto nxge_attach_fail2;
450 	}
451 
452 	nxgep->nxge_magic = NXGE_MAGIC;
453 
454 	nxgep->drv_state = 0;
455 	nxgep->dip = dip;
456 	nxgep->instance = instance;
457 	nxgep->p_dip = ddi_get_parent(dip);
458 	nxgep->nxge_debug_level = nxge_debug_level;
459 	npi_debug_level = nxge_debug_level;
460 
461 	nxge_fm_init(nxgep, &nxge_dev_reg_acc_attr, &nxge_dev_desc_dma_acc_attr,
462 				&nxge_rx_dma_attr);
463 
464 	status = nxge_map_regs(nxgep);
465 	if (status != NXGE_OK) {
466 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_map_regs failed"));
467 		goto nxge_attach_fail3;
468 	}
469 
470 	status = nxge_init_common_dev(nxgep);
471 	if (status != NXGE_OK) {
472 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
473 			"nxge_init_common_dev failed"));
474 		goto nxge_attach_fail4;
475 	}
476 
477 	if (nxgep->niu_type == NEPTUNE_2_10GF) {
478 		if (nxgep->function_num > 1) {
479 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "Unsupported"
480 			    " function %d. Only functions 0 and 1 are "
481 			    "supported for this card.", nxgep->function_num));
482 			status = NXGE_ERROR;
483 			goto nxge_attach_fail4;
484 		}
485 	}
486 
487 	portn = NXGE_GET_PORT_NUM(nxgep->function_num);
488 	nxgep->mac.portnum = portn;
489 	if ((portn == 0) || (portn == 1))
490 		nxgep->mac.porttype = PORT_TYPE_XMAC;
491 	else
492 		nxgep->mac.porttype = PORT_TYPE_BMAC;
493 	/*
494 	 * Neptune has 4 ports, the first 2 ports use XMAC (10G MAC)
495 	 * internally, the rest 2 ports use BMAC (1G "Big" MAC).
496 	 * The two types of MACs have different characterizations.
497 	 */
498 	mmac_info = &nxgep->nxge_mmac_info;
499 	if (nxgep->function_num < 2) {
500 		mmac_info->num_mmac = XMAC_MAX_ALT_ADDR_ENTRY;
501 		mmac_info->naddrfree = XMAC_MAX_ALT_ADDR_ENTRY;
502 	} else {
503 		mmac_info->num_mmac = BMAC_MAX_ALT_ADDR_ENTRY;
504 		mmac_info->naddrfree = BMAC_MAX_ALT_ADDR_ENTRY;
505 	}
506 	/*
507 	 * Setup the Ndd parameters for the this instance.
508 	 */
509 	nxge_init_param(nxgep);
510 
511 	/*
512 	 * Setup Register Tracing Buffer.
513 	 */
514 	npi_rtrace_buf_init((rtrace_t *)&npi_rtracebuf);
515 
516 	/* init stats ptr */
517 	nxge_init_statsp(nxgep);
518 
519 	/*
520 	 * read the vpd info from the eeprom into local data
521 	 * structure and check for the VPD info validity
522 	 */
523 	nxge_vpd_info_get(nxgep);
524 
525 	status = nxge_xcvr_find(nxgep);
526 
527 	if (status != NXGE_OK) {
528 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_attach: "
529 				    " Couldn't determine card type"
530 				    " .... exit "));
531 		goto nxge_attach_fail5;
532 	}
533 
534 	status = nxge_get_config_properties(nxgep);
535 
536 	if (status != NXGE_OK) {
537 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "get_hw create failed"));
538 		goto nxge_attach_fail;
539 	}
540 
541 	/*
542 	 * Setup the Kstats for the driver.
543 	 */
544 	nxge_setup_kstats(nxgep);
545 
546 	nxge_setup_param(nxgep);
547 
548 	status = nxge_setup_system_dma_pages(nxgep);
549 	if (status != NXGE_OK) {
550 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "set dma page failed"));
551 		goto nxge_attach_fail;
552 	}
553 
554 #if	defined(sun4v)
555 	if (nxgep->niu_type == N2_NIU) {
556 		nxgep->niu_hsvc_available = B_FALSE;
557 		bcopy(&niu_hsvc, &nxgep->niu_hsvc, sizeof (hsvc_info_t));
558 		if ((status =
559 			hsvc_register(&nxgep->niu_hsvc,
560 					&nxgep->niu_min_ver)) != 0) {
561 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
562 					"nxge_attach: "
563 					"%s: cannot negotiate "
564 					"hypervisor services "
565 					"revision %d "
566 					"group: 0x%lx "
567 					"major: 0x%lx minor: 0x%lx "
568 					"errno: %d",
569 					niu_hsvc.hsvc_modname,
570 					niu_hsvc.hsvc_rev,
571 					niu_hsvc.hsvc_group,
572 					niu_hsvc.hsvc_major,
573 					niu_hsvc.hsvc_minor,
574 					status));
575 				status = DDI_FAILURE;
576 				goto nxge_attach_fail;
577 		}
578 
579 		nxgep->niu_hsvc_available = B_TRUE;
580 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
581 			"NIU Hypervisor service enabled"));
582 	}
583 #endif
584 
585 	nxge_hw_id_init(nxgep);
586 	nxge_hw_init_niu_common(nxgep);
587 
588 	status = nxge_setup_mutexes(nxgep);
589 	if (status != NXGE_OK) {
590 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set mutex failed"));
591 		goto nxge_attach_fail;
592 	}
593 
594 	status = nxge_setup_dev(nxgep);
595 	if (status != DDI_SUCCESS) {
596 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set dev failed"));
597 		goto nxge_attach_fail;
598 	}
599 
600 	status = nxge_add_intrs(nxgep);
601 	if (status != DDI_SUCCESS) {
602 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "add_intr failed"));
603 		goto nxge_attach_fail;
604 	}
605 	status = nxge_add_soft_intrs(nxgep);
606 	if (status != DDI_SUCCESS) {
607 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "add_soft_intr failed"));
608 		goto nxge_attach_fail;
609 	}
610 
611 	/*
612 	 * Enable interrupts.
613 	 */
614 	nxge_intrs_enable(nxgep);
615 
616 	if ((status = nxge_mac_register(nxgep)) != NXGE_OK) {
617 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
618 			"unable to register to mac layer (%d)", status));
619 		goto nxge_attach_fail;
620 	}
621 
622 	mac_link_update(nxgep->mach, LINK_STATE_UNKNOWN);
623 
624 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "registered to mac (instance %d)",
625 		instance));
626 
627 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
628 
629 	goto nxge_attach_exit;
630 
631 nxge_attach_fail:
632 	nxge_unattach(nxgep);
633 	goto nxge_attach_fail1;
634 
635 nxge_attach_fail5:
636 	/*
637 	 * Tear down the ndd parameters setup.
638 	 */
639 	nxge_destroy_param(nxgep);
640 
641 	/*
642 	 * Tear down the kstat setup.
643 	 */
644 	nxge_destroy_kstats(nxgep);
645 
646 nxge_attach_fail4:
647 	if (nxgep->nxge_hw_p) {
648 		nxge_uninit_common_dev(nxgep);
649 		nxgep->nxge_hw_p = NULL;
650 	}
651 
652 nxge_attach_fail3:
653 	/*
654 	 * Unmap the register setup.
655 	 */
656 	nxge_unmap_regs(nxgep);
657 
658 	nxge_fm_fini(nxgep);
659 
660 nxge_attach_fail2:
661 	ddi_soft_state_free(nxge_list, nxgep->instance);
662 
663 nxge_attach_fail1:
664 	if (status != NXGE_OK)
665 		status = (NXGE_ERROR | NXGE_DDI_FAILED);
666 	nxgep = NULL;
667 
668 nxge_attach_exit:
669 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_attach status = 0x%08x",
670 		status));
671 
672 	return (status);
673 }
674 
675 static int
676 nxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
677 {
678 	int 		status = DDI_SUCCESS;
679 	int 		instance;
680 	p_nxge_t 	nxgep = NULL;
681 
682 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_detach"));
683 	instance = ddi_get_instance(dip);
684 	nxgep = ddi_get_soft_state(nxge_list, instance);
685 	if (nxgep == NULL) {
686 		status = DDI_FAILURE;
687 		goto nxge_detach_exit;
688 	}
689 
690 	switch (cmd) {
691 	case DDI_DETACH:
692 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_DETACH"));
693 		break;
694 
695 	case DDI_PM_SUSPEND:
696 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
697 		nxgep->suspended = DDI_PM_SUSPEND;
698 		nxge_suspend(nxgep);
699 		break;
700 
701 	case DDI_SUSPEND:
702 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_SUSPEND"));
703 		if (nxgep->suspended != DDI_PM_SUSPEND) {
704 			nxgep->suspended = DDI_SUSPEND;
705 			nxge_suspend(nxgep);
706 		}
707 		break;
708 
709 	default:
710 		status = DDI_FAILURE;
711 	}
712 
713 	if (cmd != DDI_DETACH)
714 		goto nxge_detach_exit;
715 
716 	/*
717 	 * Stop the xcvr polling.
718 	 */
719 	nxgep->suspended = cmd;
720 
721 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
722 
723 	if (nxgep->mach && (status = mac_unregister(nxgep->mach)) != 0) {
724 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
725 			"<== nxge_detach status = 0x%08X", status));
726 		return (DDI_FAILURE);
727 	}
728 
729 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
730 		"<== nxge_detach (mac_unregister) status = 0x%08X", status));
731 
732 	nxge_unattach(nxgep);
733 	nxgep = NULL;
734 
735 nxge_detach_exit:
736 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_detach status = 0x%08X",
737 		status));
738 
739 	return (status);
740 }
741 
742 static void
743 nxge_unattach(p_nxge_t nxgep)
744 {
745 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unattach"));
746 
747 	if (nxgep == NULL || nxgep->dev_regs == NULL) {
748 		return;
749 	}
750 
751 	nxgep->nxge_magic = 0;
752 
753 	if (nxgep->nxge_hw_p) {
754 		nxge_uninit_common_dev(nxgep);
755 		nxgep->nxge_hw_p = NULL;
756 	}
757 
758 	if (nxgep->nxge_timerid) {
759 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
760 		nxgep->nxge_timerid = 0;
761 	}
762 
763 #if	defined(sun4v)
764 	if (nxgep->niu_type == N2_NIU && nxgep->niu_hsvc_available == B_TRUE) {
765 		(void) hsvc_unregister(&nxgep->niu_hsvc);
766 		nxgep->niu_hsvc_available = B_FALSE;
767 	}
768 #endif
769 	/*
770 	 * Stop any further interrupts.
771 	 */
772 	nxge_remove_intrs(nxgep);
773 
774 	/* remove soft interrups */
775 	nxge_remove_soft_intrs(nxgep);
776 
777 	/*
778 	 * Stop the device and free resources.
779 	 */
780 	nxge_destroy_dev(nxgep);
781 
782 	/*
783 	 * Tear down the ndd parameters setup.
784 	 */
785 	nxge_destroy_param(nxgep);
786 
787 	/*
788 	 * Tear down the kstat setup.
789 	 */
790 	nxge_destroy_kstats(nxgep);
791 
792 	/*
793 	 * Destroy all mutexes.
794 	 */
795 	nxge_destroy_mutexes(nxgep);
796 
797 	/*
798 	 * Remove the list of ndd parameters which
799 	 * were setup during attach.
800 	 */
801 	if (nxgep->dip) {
802 		NXGE_DEBUG_MSG((nxgep, OBP_CTL,
803 				    " nxge_unattach: remove all properties"));
804 
805 		(void) ddi_prop_remove_all(nxgep->dip);
806 	}
807 
808 #if NXGE_PROPERTY
809 	nxge_remove_hard_properties(nxgep);
810 #endif
811 
812 	/*
813 	 * Unmap the register setup.
814 	 */
815 	nxge_unmap_regs(nxgep);
816 
817 	nxge_fm_fini(nxgep);
818 
819 	ddi_soft_state_free(nxge_list, nxgep->instance);
820 
821 	NXGE_DEBUG_MSG((NULL, DDI_CTL, "<== nxge_unattach"));
822 }
823 
824 static char n2_siu_name[] = "niu";
825 
826 static nxge_status_t
827 nxge_map_regs(p_nxge_t nxgep)
828 {
829 	int		ddi_status = DDI_SUCCESS;
830 	p_dev_regs_t 	dev_regs;
831 	char		buf[MAXPATHLEN + 1];
832 	char 		*devname;
833 #ifdef	NXGE_DEBUG
834 	char 		*sysname;
835 #endif
836 	off_t		regsize;
837 	nxge_status_t	status = NXGE_OK;
838 #if !defined(_BIG_ENDIAN)
839 	off_t pci_offset;
840 	uint16_t pcie_devctl;
841 #endif
842 
843 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_map_regs"));
844 	nxgep->dev_regs = NULL;
845 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
846 	dev_regs->nxge_regh = NULL;
847 	dev_regs->nxge_pciregh = NULL;
848 	dev_regs->nxge_msix_regh = NULL;
849 	dev_regs->nxge_vir_regh = NULL;
850 	dev_regs->nxge_vir2_regh = NULL;
851 	nxgep->niu_type = NIU_TYPE_NONE;
852 
853 	devname = ddi_pathname(nxgep->dip, buf);
854 	ASSERT(strlen(devname) > 0);
855 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
856 		"nxge_map_regs: pathname devname %s", devname));
857 
858 	if (strstr(devname, n2_siu_name)) {
859 		/* N2/NIU */
860 		nxgep->niu_type = N2_NIU;
861 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
862 			"nxge_map_regs: N2/NIU devname %s", devname));
863 		/* get function number */
864 		nxgep->function_num =
865 			(devname[strlen(devname) -1] == '1' ? 1 : 0);
866 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
867 			"nxge_map_regs: N2/NIU function number %d",
868 			nxgep->function_num));
869 	} else {
870 		int		*prop_val;
871 		uint_t 		prop_len;
872 		uint8_t 	func_num;
873 
874 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, nxgep->dip,
875 				0, "reg",
876 				&prop_val, &prop_len) != DDI_PROP_SUCCESS) {
877 			NXGE_DEBUG_MSG((nxgep, VPD_CTL,
878 				"Reg property not found"));
879 			ddi_status = DDI_FAILURE;
880 			goto nxge_map_regs_fail0;
881 
882 		} else {
883 			func_num = (prop_val[0] >> 8) & 0x7;
884 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
885 				"Reg property found: fun # %d",
886 				func_num));
887 			nxgep->function_num = func_num;
888 			ddi_prop_free(prop_val);
889 		}
890 	}
891 
892 	switch (nxgep->niu_type) {
893 	default:
894 		(void) ddi_dev_regsize(nxgep->dip, 0, &regsize);
895 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
896 			"nxge_map_regs: pci config size 0x%x", regsize));
897 
898 		ddi_status = ddi_regs_map_setup(nxgep->dip, 0,
899 			(caddr_t *)&(dev_regs->nxge_pciregp), 0, 0,
900 			&nxge_dev_reg_acc_attr, &dev_regs->nxge_pciregh);
901 		if (ddi_status != DDI_SUCCESS) {
902 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
903 				"ddi_map_regs, nxge bus config regs failed"));
904 			goto nxge_map_regs_fail0;
905 		}
906 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
907 			"nxge_map_reg: PCI config addr 0x%0llx "
908 			" handle 0x%0llx", dev_regs->nxge_pciregp,
909 			dev_regs->nxge_pciregh));
910 			/*
911 			 * IMP IMP
912 			 * workaround  for bit swapping bug in HW
913 			 * which ends up in no-snoop = yes
914 			 * resulting, in DMA not synched properly
915 			 */
916 #if !defined(_BIG_ENDIAN)
917 		/* workarounds for x86 systems */
918 		pci_offset = 0x80 + PCIE_DEVCTL;
919 		pcie_devctl = 0x0;
920 		pcie_devctl &= PCIE_DEVCTL_ENABLE_NO_SNOOP;
921 		pcie_devctl |= PCIE_DEVCTL_RO_EN;
922 		pci_config_put16(dev_regs->nxge_pciregh, pci_offset,
923 				    pcie_devctl);
924 #endif
925 
926 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
927 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
928 			"nxge_map_regs: pio size 0x%x", regsize));
929 		/* set up the device mapped register */
930 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
931 			(caddr_t *)&(dev_regs->nxge_regp), 0, 0,
932 			&nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
933 		if (ddi_status != DDI_SUCCESS) {
934 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
935 				"ddi_map_regs for Neptune global reg failed"));
936 			goto nxge_map_regs_fail1;
937 		}
938 
939 		/* set up the msi/msi-x mapped register */
940 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
941 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
942 			"nxge_map_regs: msix size 0x%x", regsize));
943 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
944 			(caddr_t *)&(dev_regs->nxge_msix_regp), 0, 0,
945 			&nxge_dev_reg_acc_attr, &dev_regs->nxge_msix_regh);
946 		if (ddi_status != DDI_SUCCESS) {
947 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
948 				"ddi_map_regs for msi reg failed"));
949 			goto nxge_map_regs_fail2;
950 		}
951 
952 		/* set up the vio region mapped register */
953 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
954 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
955 			"nxge_map_regs: vio size 0x%x", regsize));
956 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
957 			(caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
958 			&nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
959 
960 		if (ddi_status != DDI_SUCCESS) {
961 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
962 				"ddi_map_regs for nxge vio reg failed"));
963 			goto nxge_map_regs_fail3;
964 		}
965 		nxgep->dev_regs = dev_regs;
966 
967 		NPI_PCI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_pciregh);
968 		NPI_PCI_ADD_HANDLE_SET(nxgep,
969 			(npi_reg_ptr_t)dev_regs->nxge_pciregp);
970 		NPI_MSI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_msix_regh);
971 		NPI_MSI_ADD_HANDLE_SET(nxgep,
972 			(npi_reg_ptr_t)dev_regs->nxge_msix_regp);
973 
974 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
975 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
976 
977 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
978 		NPI_REG_ADD_HANDLE_SET(nxgep,
979 			(npi_reg_ptr_t)dev_regs->nxge_regp);
980 
981 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
982 		NPI_VREG_ADD_HANDLE_SET(nxgep,
983 			(npi_reg_ptr_t)dev_regs->nxge_vir_regp);
984 
985 		break;
986 
987 	case N2_NIU:
988 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "ddi_map_regs, NIU"));
989 		/*
990 		 * Set up the device mapped register (FWARC 2006/556)
991 		 * (changed back to 1: reg starts at 1!)
992 		 */
993 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
994 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
995 			"nxge_map_regs: dev size 0x%x", regsize));
996 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
997 				(caddr_t *)&(dev_regs->nxge_regp), 0, 0,
998 				&nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
999 
1000 		if (ddi_status != DDI_SUCCESS) {
1001 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1002 				"ddi_map_regs for N2/NIU, global reg failed "));
1003 			goto nxge_map_regs_fail1;
1004 		}
1005 
1006 		/* set up the vio region mapped register */
1007 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1008 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1009 			"nxge_map_regs: vio (1) size 0x%x", regsize));
1010 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1011 			(caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1012 			&nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1013 
1014 		if (ddi_status != DDI_SUCCESS) {
1015 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1016 				"ddi_map_regs for nxge vio reg failed"));
1017 			goto nxge_map_regs_fail2;
1018 		}
1019 		/* set up the vio region mapped register */
1020 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1021 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1022 			"nxge_map_regs: vio (3) size 0x%x", regsize));
1023 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1024 			(caddr_t *)&(dev_regs->nxge_vir2_regp), 0, 0,
1025 			&nxge_dev_reg_acc_attr, &dev_regs->nxge_vir2_regh);
1026 
1027 		if (ddi_status != DDI_SUCCESS) {
1028 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1029 				"ddi_map_regs for nxge vio2 reg failed"));
1030 			goto nxge_map_regs_fail3;
1031 		}
1032 		nxgep->dev_regs = dev_regs;
1033 
1034 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1035 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1036 
1037 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1038 		NPI_REG_ADD_HANDLE_SET(nxgep,
1039 			(npi_reg_ptr_t)dev_regs->nxge_regp);
1040 
1041 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1042 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1043 			(npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1044 
1045 		NPI_V2REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir2_regh);
1046 		NPI_V2REG_ADD_HANDLE_SET(nxgep,
1047 			(npi_reg_ptr_t)dev_regs->nxge_vir2_regp);
1048 
1049 		break;
1050 	}
1051 
1052 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "nxge_map_reg: hardware addr 0x%0llx "
1053 		" handle 0x%0llx", dev_regs->nxge_regp, dev_regs->nxge_regh));
1054 
1055 	goto nxge_map_regs_exit;
1056 nxge_map_regs_fail3:
1057 	if (dev_regs->nxge_msix_regh) {
1058 		ddi_regs_map_free(&dev_regs->nxge_msix_regh);
1059 	}
1060 	if (dev_regs->nxge_vir_regh) {
1061 		ddi_regs_map_free(&dev_regs->nxge_regh);
1062 	}
1063 nxge_map_regs_fail2:
1064 	if (dev_regs->nxge_regh) {
1065 		ddi_regs_map_free(&dev_regs->nxge_regh);
1066 	}
1067 nxge_map_regs_fail1:
1068 	if (dev_regs->nxge_pciregh) {
1069 		ddi_regs_map_free(&dev_regs->nxge_pciregh);
1070 	}
1071 nxge_map_regs_fail0:
1072 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Freeing register set memory"));
1073 	kmem_free(dev_regs, sizeof (dev_regs_t));
1074 
1075 nxge_map_regs_exit:
1076 	if (ddi_status != DDI_SUCCESS)
1077 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1078 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_map_regs"));
1079 	return (status);
1080 }
1081 
1082 static void
1083 nxge_unmap_regs(p_nxge_t nxgep)
1084 {
1085 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unmap_regs"));
1086 	if (nxgep->dev_regs) {
1087 		if (nxgep->dev_regs->nxge_pciregh) {
1088 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1089 				"==> nxge_unmap_regs: bus"));
1090 			ddi_regs_map_free(&nxgep->dev_regs->nxge_pciregh);
1091 			nxgep->dev_regs->nxge_pciregh = NULL;
1092 		}
1093 		if (nxgep->dev_regs->nxge_regh) {
1094 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1095 				"==> nxge_unmap_regs: device registers"));
1096 			ddi_regs_map_free(&nxgep->dev_regs->nxge_regh);
1097 			nxgep->dev_regs->nxge_regh = NULL;
1098 		}
1099 		if (nxgep->dev_regs->nxge_msix_regh) {
1100 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1101 				"==> nxge_unmap_regs: device interrupts"));
1102 			ddi_regs_map_free(&nxgep->dev_regs->nxge_msix_regh);
1103 			nxgep->dev_regs->nxge_msix_regh = NULL;
1104 		}
1105 		if (nxgep->dev_regs->nxge_vir_regh) {
1106 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1107 				"==> nxge_unmap_regs: vio region"));
1108 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir_regh);
1109 			nxgep->dev_regs->nxge_vir_regh = NULL;
1110 		}
1111 		if (nxgep->dev_regs->nxge_vir2_regh) {
1112 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1113 				"==> nxge_unmap_regs: vio2 region"));
1114 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir2_regh);
1115 			nxgep->dev_regs->nxge_vir2_regh = NULL;
1116 		}
1117 
1118 		kmem_free(nxgep->dev_regs, sizeof (dev_regs_t));
1119 		nxgep->dev_regs = NULL;
1120 	}
1121 
1122 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_unmap_regs"));
1123 }
1124 
1125 static nxge_status_t
1126 nxge_setup_mutexes(p_nxge_t nxgep)
1127 {
1128 	int ddi_status = DDI_SUCCESS;
1129 	nxge_status_t status = NXGE_OK;
1130 	nxge_classify_t *classify_ptr;
1131 	int partition;
1132 
1133 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_mutexes"));
1134 
1135 	/*
1136 	 * Get the interrupt cookie so the mutexes can be
1137 	 * Initialized.
1138 	 */
1139 	ddi_status = ddi_get_iblock_cookie(nxgep->dip, 0,
1140 					&nxgep->interrupt_cookie);
1141 	if (ddi_status != DDI_SUCCESS) {
1142 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1143 			"<== nxge_setup_mutexes: failed 0x%x", ddi_status));
1144 		goto nxge_setup_mutexes_exit;
1145 	}
1146 
1147 	/* Initialize global mutex */
1148 
1149 	if (nxge_mdio_lock_init == 0) {
1150 		MUTEX_INIT(&nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
1151 	}
1152 	atomic_add_32(&nxge_mdio_lock_init, 1);
1153 
1154 	if (nxge_mii_lock_init == 0) {
1155 		MUTEX_INIT(&nxge_mii_lock, NULL, MUTEX_DRIVER, NULL);
1156 	}
1157 	atomic_add_32(&nxge_mii_lock_init, 1);
1158 
1159 	nxgep->drv_state |= STATE_MDIO_LOCK_INIT;
1160 	nxgep->drv_state |= STATE_MII_LOCK_INIT;
1161 
1162 	cv_init(&nxgep->poll_cv, NULL, CV_DRIVER, NULL);
1163 	MUTEX_INIT(&nxgep->poll_lock, NULL,
1164 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1165 
1166 	/*
1167 	 * Initialize mutexes for this device.
1168 	 */
1169 	MUTEX_INIT(nxgep->genlock, NULL,
1170 		MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1171 	MUTEX_INIT(&nxgep->ouraddr_lock, NULL,
1172 		MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1173 	MUTEX_INIT(&nxgep->mif_lock, NULL,
1174 		MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1175 	RW_INIT(&nxgep->filter_lock, NULL,
1176 		RW_DRIVER, (void *)nxgep->interrupt_cookie);
1177 
1178 	classify_ptr = &nxgep->classifier;
1179 		/*
1180 		 * FFLP Mutexes are never used in interrupt context
1181 		 * as fflp operation can take very long time to
1182 		 * complete and hence not suitable to invoke from interrupt
1183 		 * handlers.
1184 		 */
1185 	MUTEX_INIT(&classify_ptr->tcam_lock, NULL,
1186 	    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1187 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1188 		MUTEX_INIT(&classify_ptr->fcram_lock, NULL,
1189 		    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1190 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1191 			MUTEX_INIT(&classify_ptr->hash_lock[partition], NULL,
1192 			    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1193 		}
1194 	}
1195 
1196 nxge_setup_mutexes_exit:
1197 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1198 	    "<== nxge_setup_mutexes status = %x", status));
1199 
1200 	if (ddi_status != DDI_SUCCESS)
1201 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1202 
1203 	return (status);
1204 }
1205 
1206 static void
1207 nxge_destroy_mutexes(p_nxge_t nxgep)
1208 {
1209 	int partition;
1210 	nxge_classify_t *classify_ptr;
1211 
1212 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_mutexes"));
1213 	RW_DESTROY(&nxgep->filter_lock);
1214 	MUTEX_DESTROY(&nxgep->mif_lock);
1215 	MUTEX_DESTROY(&nxgep->ouraddr_lock);
1216 	MUTEX_DESTROY(nxgep->genlock);
1217 
1218 	classify_ptr = &nxgep->classifier;
1219 	MUTEX_DESTROY(&classify_ptr->tcam_lock);
1220 
1221 	/* Destroy all polling resources. */
1222 	MUTEX_DESTROY(&nxgep->poll_lock);
1223 	cv_destroy(&nxgep->poll_cv);
1224 
1225 	/* free data structures, based on HW type */
1226 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1227 		MUTEX_DESTROY(&classify_ptr->fcram_lock);
1228 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1229 			MUTEX_DESTROY(&classify_ptr->hash_lock[partition]);
1230 		}
1231 	}
1232 	if (nxgep->drv_state & STATE_MDIO_LOCK_INIT) {
1233 		if (nxge_mdio_lock_init == 1) {
1234 			MUTEX_DESTROY(&nxge_mdio_lock);
1235 		}
1236 		atomic_add_32(&nxge_mdio_lock_init, -1);
1237 	}
1238 	if (nxgep->drv_state & STATE_MII_LOCK_INIT) {
1239 		if (nxge_mii_lock_init == 1) {
1240 			MUTEX_DESTROY(&nxge_mii_lock);
1241 		}
1242 		atomic_add_32(&nxge_mii_lock_init, -1);
1243 	}
1244 
1245 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_mutexes"));
1246 }
1247 
1248 nxge_status_t
1249 nxge_init(p_nxge_t nxgep)
1250 {
1251 	nxge_status_t	status = NXGE_OK;
1252 
1253 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_init"));
1254 
1255 	if (nxgep->drv_state & STATE_HW_INITIALIZED) {
1256 		return (status);
1257 	}
1258 
1259 	/*
1260 	 * Allocate system memory for the receive/transmit buffer blocks
1261 	 * and receive/transmit descriptor rings.
1262 	 */
1263 	status = nxge_alloc_mem_pool(nxgep);
1264 	if (status != NXGE_OK) {
1265 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "alloc mem failed\n"));
1266 		goto nxge_init_fail1;
1267 	}
1268 
1269 	/*
1270 	 * Initialize and enable TXC registers
1271 	 * (Globally enable TX controller,
1272 	 *  enable a port, configure dma channel bitmap,
1273 	 *  configure the max burst size).
1274 	 */
1275 	status = nxge_txc_init(nxgep);
1276 	if (status != NXGE_OK) {
1277 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init txc failed\n"));
1278 		goto nxge_init_fail2;
1279 	}
1280 
1281 	/*
1282 	 * Initialize and enable TXDMA channels.
1283 	 */
1284 	status = nxge_init_txdma_channels(nxgep);
1285 	if (status != NXGE_OK) {
1286 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init txdma failed\n"));
1287 		goto nxge_init_fail3;
1288 	}
1289 
1290 	/*
1291 	 * Initialize and enable RXDMA channels.
1292 	 */
1293 	status = nxge_init_rxdma_channels(nxgep);
1294 	if (status != NXGE_OK) {
1295 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init rxdma failed\n"));
1296 		goto nxge_init_fail4;
1297 	}
1298 
1299 	/*
1300 	 * Initialize TCAM and FCRAM (Neptune).
1301 	 */
1302 	status = nxge_classify_init(nxgep);
1303 	if (status != NXGE_OK) {
1304 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init classify failed\n"));
1305 		goto nxge_init_fail5;
1306 	}
1307 
1308 	/*
1309 	 * Initialize ZCP
1310 	 */
1311 	status = nxge_zcp_init(nxgep);
1312 	if (status != NXGE_OK) {
1313 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init ZCP failed\n"));
1314 		goto nxge_init_fail5;
1315 	}
1316 
1317 	/*
1318 	 * Initialize IPP.
1319 	 */
1320 	status = nxge_ipp_init(nxgep);
1321 	if (status != NXGE_OK) {
1322 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init IPP failed\n"));
1323 		goto nxge_init_fail5;
1324 	}
1325 
1326 	/*
1327 	 * Initialize the MAC block.
1328 	 */
1329 	status = nxge_mac_init(nxgep);
1330 	if (status != NXGE_OK) {
1331 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init MAC failed\n"));
1332 		goto nxge_init_fail5;
1333 	}
1334 
1335 	nxge_intrs_enable(nxgep);
1336 
1337 	/*
1338 	 * Enable hardware interrupts.
1339 	 */
1340 	nxge_intr_hw_enable(nxgep);
1341 	nxgep->drv_state |= STATE_HW_INITIALIZED;
1342 
1343 	goto nxge_init_exit;
1344 
1345 nxge_init_fail5:
1346 	nxge_uninit_rxdma_channels(nxgep);
1347 nxge_init_fail4:
1348 	nxge_uninit_txdma_channels(nxgep);
1349 nxge_init_fail3:
1350 	(void) nxge_txc_uninit(nxgep);
1351 nxge_init_fail2:
1352 	nxge_free_mem_pool(nxgep);
1353 nxge_init_fail1:
1354 	NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1355 		"<== nxge_init status (failed) = 0x%08x", status));
1356 	return (status);
1357 
1358 nxge_init_exit:
1359 
1360 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_init status = 0x%08x",
1361 		status));
1362 	return (status);
1363 }
1364 
1365 
1366 timeout_id_t
1367 nxge_start_timer(p_nxge_t nxgep, fptrv_t func, int msec)
1368 {
1369 	if ((nxgep->suspended == 0) ||
1370 			(nxgep->suspended == DDI_RESUME)) {
1371 		return (timeout(func, (caddr_t)nxgep,
1372 			drv_usectohz(1000 * msec)));
1373 	}
1374 	return (NULL);
1375 }
1376 
1377 /*ARGSUSED*/
1378 void
1379 nxge_stop_timer(p_nxge_t nxgep, timeout_id_t timerid)
1380 {
1381 	if (timerid) {
1382 		(void) untimeout(timerid);
1383 	}
1384 }
1385 
1386 void
1387 nxge_uninit(p_nxge_t nxgep)
1388 {
1389 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_uninit"));
1390 
1391 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
1392 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1393 			"==> nxge_uninit: not initialized"));
1394 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1395 			"<== nxge_uninit"));
1396 		return;
1397 	}
1398 
1399 	/* stop timer */
1400 	if (nxgep->nxge_timerid) {
1401 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1402 		nxgep->nxge_timerid = 0;
1403 	}
1404 
1405 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
1406 	(void) nxge_intr_hw_disable(nxgep);
1407 
1408 	/*
1409 	 * Reset the receive MAC side.
1410 	 */
1411 	(void) nxge_rx_mac_disable(nxgep);
1412 
1413 	/* Disable and soft reset the IPP */
1414 	(void) nxge_ipp_disable(nxgep);
1415 
1416 	/* Free classification resources */
1417 	(void) nxge_classify_uninit(nxgep);
1418 
1419 	/*
1420 	 * Reset the transmit/receive DMA side.
1421 	 */
1422 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
1423 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
1424 
1425 	nxge_uninit_txdma_channels(nxgep);
1426 	nxge_uninit_rxdma_channels(nxgep);
1427 
1428 	/*
1429 	 * Reset the transmit MAC side.
1430 	 */
1431 	(void) nxge_tx_mac_disable(nxgep);
1432 
1433 	nxge_free_mem_pool(nxgep);
1434 
1435 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1436 
1437 	nxgep->drv_state &= ~STATE_HW_INITIALIZED;
1438 
1439 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_uninit: "
1440 		"nxge_mblks_pending %d", nxge_mblks_pending));
1441 }
1442 
1443 void
1444 nxge_get64(p_nxge_t nxgep, p_mblk_t mp)
1445 {
1446 #if defined(__i386)
1447 	size_t		reg;
1448 #else
1449 	uint64_t	reg;
1450 #endif
1451 	uint64_t	regdata;
1452 	int		i, retry;
1453 
1454 	bcopy((char *)mp->b_rptr, (char *)&reg, sizeof (uint64_t));
1455 	regdata = 0;
1456 	retry = 1;
1457 
1458 	for (i = 0; i < retry; i++) {
1459 		NXGE_REG_RD64(nxgep->npi_handle, reg, &regdata);
1460 	}
1461 	bcopy((char *)&regdata, (char *)mp->b_rptr, sizeof (uint64_t));
1462 }
1463 
1464 void
1465 nxge_put64(p_nxge_t nxgep, p_mblk_t mp)
1466 {
1467 #if defined(__i386)
1468 	size_t		reg;
1469 #else
1470 	uint64_t	reg;
1471 #endif
1472 	uint64_t	buf[2];
1473 
1474 	bcopy((char *)mp->b_rptr, (char *)&buf[0], 2 * sizeof (uint64_t));
1475 #if defined(__i386)
1476 	reg = (size_t)buf[0];
1477 #else
1478 	reg = buf[0];
1479 #endif
1480 
1481 	NXGE_NPI_PIO_WRITE64(nxgep->npi_handle, reg, buf[1]);
1482 }
1483 
1484 
1485 nxge_os_mutex_t nxgedebuglock;
1486 int nxge_debug_init = 0;
1487 
1488 /*ARGSUSED*/
1489 /*VARARGS*/
1490 void
1491 nxge_debug_msg(p_nxge_t nxgep, uint64_t level, char *fmt, ...)
1492 {
1493 	char msg_buffer[1048];
1494 	char prefix_buffer[32];
1495 	int instance;
1496 	uint64_t debug_level;
1497 	int cmn_level = CE_CONT;
1498 	va_list ap;
1499 
1500 	debug_level = (nxgep == NULL) ? nxge_debug_level :
1501 		nxgep->nxge_debug_level;
1502 
1503 	if ((level & debug_level) ||
1504 		(level == NXGE_NOTE) ||
1505 		(level == NXGE_ERR_CTL)) {
1506 		/* do the msg processing */
1507 		if (nxge_debug_init == 0) {
1508 			MUTEX_INIT(&nxgedebuglock, NULL, MUTEX_DRIVER, NULL);
1509 			nxge_debug_init = 1;
1510 		}
1511 
1512 		MUTEX_ENTER(&nxgedebuglock);
1513 
1514 		if ((level & NXGE_NOTE)) {
1515 			cmn_level = CE_NOTE;
1516 		}
1517 
1518 		if (level & NXGE_ERR_CTL) {
1519 			cmn_level = CE_WARN;
1520 		}
1521 
1522 		va_start(ap, fmt);
1523 		(void) vsprintf(msg_buffer, fmt, ap);
1524 		va_end(ap);
1525 		if (nxgep == NULL) {
1526 			instance = -1;
1527 			(void) sprintf(prefix_buffer, "%s :", "nxge");
1528 		} else {
1529 			instance = nxgep->instance;
1530 			(void) sprintf(prefix_buffer,
1531 						    "%s%d :", "nxge", instance);
1532 		}
1533 
1534 		MUTEX_EXIT(&nxgedebuglock);
1535 		cmn_err(cmn_level, "!%s %s\n",
1536 				prefix_buffer, msg_buffer);
1537 
1538 	}
1539 }
1540 
1541 char *
1542 nxge_dump_packet(char *addr, int size)
1543 {
1544 	uchar_t *ap = (uchar_t *)addr;
1545 	int i;
1546 	static char etherbuf[1024];
1547 	char *cp = etherbuf;
1548 	char digits[] = "0123456789abcdef";
1549 
1550 	if (!size)
1551 		size = 60;
1552 
1553 	if (size > MAX_DUMP_SZ) {
1554 		/* Dump the leading bytes */
1555 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1556 			if (*ap > 0x0f)
1557 				*cp++ = digits[*ap >> 4];
1558 			*cp++ = digits[*ap++ & 0xf];
1559 			*cp++ = ':';
1560 		}
1561 		for (i = 0; i < 20; i++)
1562 			*cp++ = '.';
1563 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1564 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ/2));
1565 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1566 			if (*ap > 0x0f)
1567 				*cp++ = digits[*ap >> 4];
1568 			*cp++ = digits[*ap++ & 0xf];
1569 			*cp++ = ':';
1570 		}
1571 	} else {
1572 		for (i = 0; i < size; i++) {
1573 			if (*ap > 0x0f)
1574 				*cp++ = digits[*ap >> 4];
1575 			*cp++ = digits[*ap++ & 0xf];
1576 			*cp++ = ':';
1577 		}
1578 	}
1579 	*--cp = 0;
1580 	return (etherbuf);
1581 }
1582 
1583 #ifdef	NXGE_DEBUG
1584 static void
1585 nxge_test_map_regs(p_nxge_t nxgep)
1586 {
1587 	ddi_acc_handle_t cfg_handle;
1588 	p_pci_cfg_t	cfg_ptr;
1589 	ddi_acc_handle_t dev_handle;
1590 	char		*dev_ptr;
1591 	ddi_acc_handle_t pci_config_handle;
1592 	uint32_t	regval;
1593 	int		i;
1594 
1595 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_test_map_regs"));
1596 
1597 	dev_handle = nxgep->dev_regs->nxge_regh;
1598 	dev_ptr = (char *)nxgep->dev_regs->nxge_regp;
1599 
1600 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1601 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1602 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1603 
1604 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1605 		    "Neptune PCI regp cfg_ptr 0x%llx", (char *)cfg_ptr));
1606 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1607 		    "Neptune PCI cfg_ptr vendor id ptr 0x%llx",
1608 		    &cfg_ptr->vendorid));
1609 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1610 		    "\tvendorid 0x%x devid 0x%x",
1611 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->vendorid, 0),
1612 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->devid,    0)));
1613 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1614 		    "PCI BAR: base 0x%x base14 0x%x base 18 0x%x "
1615 		    "bar1c 0x%x",
1616 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base,   0),
1617 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base14, 0),
1618 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base18, 0),
1619 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base1c, 0)));
1620 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1621 		    "\nNeptune PCI BAR: base20 0x%x base24 0x%x "
1622 		    "base 28 0x%x bar2c 0x%x\n",
1623 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base20, 0),
1624 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base24, 0),
1625 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base28, 0),
1626 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base2c, 0)));
1627 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1628 		    "\nNeptune PCI BAR: base30 0x%x\n",
1629 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base30, 0)));
1630 
1631 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1632 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1633 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1634 		    "first  0x%llx second 0x%llx third 0x%llx "
1635 		    "last 0x%llx ",
1636 		    NXGE_PIO_READ64(dev_handle,
1637 		    (uint64_t *)(dev_ptr + 0),  0),
1638 		    NXGE_PIO_READ64(dev_handle,
1639 		    (uint64_t *)(dev_ptr + 8),  0),
1640 		    NXGE_PIO_READ64(dev_handle,
1641 		    (uint64_t *)(dev_ptr + 16), 0),
1642 		    NXGE_PIO_READ64(cfg_handle,
1643 		    (uint64_t *)(dev_ptr + 24), 0)));
1644 	}
1645 }
1646 
1647 #endif
1648 
1649 static void
1650 nxge_suspend(p_nxge_t nxgep)
1651 {
1652 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_suspend"));
1653 
1654 	nxge_intrs_disable(nxgep);
1655 	nxge_destroy_dev(nxgep);
1656 
1657 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_suspend"));
1658 }
1659 
1660 static nxge_status_t
1661 nxge_resume(p_nxge_t nxgep)
1662 {
1663 	nxge_status_t status = NXGE_OK;
1664 
1665 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_resume"));
1666 
1667 	nxgep->suspended = DDI_RESUME;
1668 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1669 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_START);
1670 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_START);
1671 	(void) nxge_rx_mac_enable(nxgep);
1672 	(void) nxge_tx_mac_enable(nxgep);
1673 	nxge_intrs_enable(nxgep);
1674 	nxgep->suspended = 0;
1675 
1676 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1677 			"<== nxge_resume status = 0x%x", status));
1678 	return (status);
1679 }
1680 
1681 static nxge_status_t
1682 nxge_setup_dev(p_nxge_t nxgep)
1683 {
1684 	nxge_status_t	status = NXGE_OK;
1685 
1686 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_dev port %d",
1687 	    nxgep->mac.portnum));
1688 
1689 	status = nxge_link_init(nxgep);
1690 
1691 	if (fm_check_acc_handle(nxgep->dev_regs->nxge_regh) != DDI_FM_OK) {
1692 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1693 			"port%d Bad register acc handle", nxgep->mac.portnum));
1694 		status = NXGE_ERROR;
1695 	}
1696 
1697 	if (status != NXGE_OK) {
1698 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1699 			    " nxge_setup_dev status "
1700 			    "(xcvr init 0x%08x)", status));
1701 		goto nxge_setup_dev_exit;
1702 	}
1703 
1704 nxge_setup_dev_exit:
1705 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1706 		"<== nxge_setup_dev port %d status = 0x%08x",
1707 		nxgep->mac.portnum, status));
1708 
1709 	return (status);
1710 }
1711 
1712 static void
1713 nxge_destroy_dev(p_nxge_t nxgep)
1714 {
1715 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_dev"));
1716 
1717 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
1718 
1719 	(void) nxge_hw_stop(nxgep);
1720 
1721 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_dev"));
1722 }
1723 
1724 static nxge_status_t
1725 nxge_setup_system_dma_pages(p_nxge_t nxgep)
1726 {
1727 	int 			ddi_status = DDI_SUCCESS;
1728 	uint_t 			count;
1729 	ddi_dma_cookie_t 	cookie;
1730 	uint_t 			iommu_pagesize;
1731 	nxge_status_t		status = NXGE_OK;
1732 
1733 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_system_dma_pages"));
1734 	nxgep->sys_page_sz = ddi_ptob(nxgep->dip, (ulong_t)1);
1735 	if (nxgep->niu_type != N2_NIU) {
1736 		iommu_pagesize = dvma_pagesize(nxgep->dip);
1737 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1738 			" nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
1739 			" default_block_size %d iommu_pagesize %d",
1740 			nxgep->sys_page_sz,
1741 			ddi_ptob(nxgep->dip, (ulong_t)1),
1742 			nxgep->rx_default_block_size,
1743 			iommu_pagesize));
1744 
1745 		if (iommu_pagesize != 0) {
1746 			if (nxgep->sys_page_sz == iommu_pagesize) {
1747 				if (iommu_pagesize > 0x4000)
1748 					nxgep->sys_page_sz = 0x4000;
1749 			} else {
1750 				if (nxgep->sys_page_sz > iommu_pagesize)
1751 					nxgep->sys_page_sz = iommu_pagesize;
1752 			}
1753 		}
1754 	}
1755 	nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
1756 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1757 		"==> nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
1758 		"default_block_size %d page mask %d",
1759 		nxgep->sys_page_sz,
1760 		ddi_ptob(nxgep->dip, (ulong_t)1),
1761 		nxgep->rx_default_block_size,
1762 		nxgep->sys_page_mask));
1763 
1764 
1765 	switch (nxgep->sys_page_sz) {
1766 	default:
1767 		nxgep->sys_page_sz = 0x1000;
1768 		nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
1769 		nxgep->rx_default_block_size = 0x1000;
1770 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
1771 		break;
1772 	case 0x1000:
1773 		nxgep->rx_default_block_size = 0x1000;
1774 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
1775 		break;
1776 	case 0x2000:
1777 		nxgep->rx_default_block_size = 0x2000;
1778 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
1779 		break;
1780 	case 0x4000:
1781 		nxgep->rx_default_block_size = 0x4000;
1782 		nxgep->rx_bksize_code = RBR_BKSIZE_16K;
1783 		break;
1784 	case 0x8000:
1785 		nxgep->rx_default_block_size = 0x8000;
1786 		nxgep->rx_bksize_code = RBR_BKSIZE_32K;
1787 		break;
1788 	}
1789 
1790 #ifndef USE_RX_BIG_BUF
1791 	nxge_rx_dma_attr.dma_attr_align = nxgep->sys_page_sz;
1792 #else
1793 		nxgep->rx_default_block_size = 0x2000;
1794 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
1795 #endif
1796 	/*
1797 	 * Get the system DMA burst size.
1798 	 */
1799 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, &nxge_tx_dma_attr,
1800 			DDI_DMA_DONTWAIT, 0,
1801 			&nxgep->dmasparehandle);
1802 	if (ddi_status != DDI_SUCCESS) {
1803 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1804 			"ddi_dma_alloc_handle: failed "
1805 			" status 0x%x", ddi_status));
1806 		goto nxge_get_soft_properties_exit;
1807 	}
1808 
1809 	ddi_status = ddi_dma_addr_bind_handle(nxgep->dmasparehandle, NULL,
1810 				(caddr_t)nxgep->dmasparehandle,
1811 				sizeof (nxgep->dmasparehandle),
1812 				DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
1813 				DDI_DMA_DONTWAIT, 0,
1814 				&cookie, &count);
1815 	if (ddi_status != DDI_DMA_MAPPED) {
1816 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1817 			"Binding spare handle to find system"
1818 			" burstsize failed."));
1819 		ddi_status = DDI_FAILURE;
1820 		goto nxge_get_soft_properties_fail1;
1821 	}
1822 
1823 	nxgep->sys_burst_sz = ddi_dma_burstsizes(nxgep->dmasparehandle);
1824 	(void) ddi_dma_unbind_handle(nxgep->dmasparehandle);
1825 
1826 nxge_get_soft_properties_fail1:
1827 	ddi_dma_free_handle(&nxgep->dmasparehandle);
1828 
1829 nxge_get_soft_properties_exit:
1830 
1831 	if (ddi_status != DDI_SUCCESS)
1832 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1833 
1834 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1835 		"<== nxge_setup_system_dma_pages status = 0x%08x", status));
1836 	return (status);
1837 }
1838 
1839 static nxge_status_t
1840 nxge_alloc_mem_pool(p_nxge_t nxgep)
1841 {
1842 	nxge_status_t	status = NXGE_OK;
1843 
1844 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_alloc_mem_pool"));
1845 
1846 	status = nxge_alloc_rx_mem_pool(nxgep);
1847 	if (status != NXGE_OK) {
1848 		return (NXGE_ERROR);
1849 	}
1850 
1851 	status = nxge_alloc_tx_mem_pool(nxgep);
1852 	if (status != NXGE_OK) {
1853 		nxge_free_rx_mem_pool(nxgep);
1854 		return (NXGE_ERROR);
1855 	}
1856 
1857 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_alloc_mem_pool"));
1858 	return (NXGE_OK);
1859 }
1860 
1861 static void
1862 nxge_free_mem_pool(p_nxge_t nxgep)
1863 {
1864 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_mem_pool"));
1865 
1866 	nxge_free_rx_mem_pool(nxgep);
1867 	nxge_free_tx_mem_pool(nxgep);
1868 
1869 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_mem_pool"));
1870 }
1871 
1872 static nxge_status_t
1873 nxge_alloc_rx_mem_pool(p_nxge_t nxgep)
1874 {
1875 	int			i, j;
1876 	uint32_t		ndmas, st_rdc;
1877 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
1878 	p_nxge_hw_pt_cfg_t	p_cfgp;
1879 	p_nxge_dma_pool_t	dma_poolp;
1880 	p_nxge_dma_common_t	*dma_buf_p;
1881 	p_nxge_dma_pool_t	dma_cntl_poolp;
1882 	p_nxge_dma_common_t	*dma_cntl_p;
1883 	size_t			rx_buf_alloc_size;
1884 	size_t			rx_cntl_alloc_size;
1885 	uint32_t 		*num_chunks; /* per dma */
1886 	nxge_status_t		status = NXGE_OK;
1887 
1888 	uint32_t		nxge_port_rbr_size;
1889 	uint32_t		nxge_port_rbr_spare_size;
1890 	uint32_t		nxge_port_rcr_size;
1891 
1892 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_mem_pool"));
1893 
1894 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
1895 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
1896 	st_rdc = p_cfgp->start_rdc;
1897 	ndmas = p_cfgp->max_rdcs;
1898 
1899 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
1900 		" nxge_alloc_rx_mem_pool st_rdc %d ndmas %d", st_rdc, ndmas));
1901 
1902 	/*
1903 	 * Allocate memory for each receive DMA channel.
1904 	 */
1905 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
1906 			KM_SLEEP);
1907 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
1908 			sizeof (p_nxge_dma_common_t) * ndmas, KM_SLEEP);
1909 
1910 	dma_cntl_poolp = (p_nxge_dma_pool_t)
1911 				KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
1912 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
1913 			sizeof (p_nxge_dma_common_t) * ndmas, KM_SLEEP);
1914 
1915 	num_chunks = (uint32_t *)KMEM_ZALLOC(
1916 			sizeof (uint32_t) * ndmas, KM_SLEEP);
1917 
1918 	/*
1919 	 * Assume that each DMA channel will be configured with default
1920 	 * block size.
1921 	 * rbr block counts are mod of batch count (16).
1922 	 */
1923 	nxge_port_rbr_size = p_all_cfgp->rbr_size;
1924 	nxge_port_rcr_size = p_all_cfgp->rcr_size;
1925 
1926 	if (!nxge_port_rbr_size) {
1927 		nxge_port_rbr_size = NXGE_RBR_RBB_DEFAULT;
1928 	}
1929 	if (nxge_port_rbr_size % NXGE_RXDMA_POST_BATCH) {
1930 		nxge_port_rbr_size = (NXGE_RXDMA_POST_BATCH *
1931 			(nxge_port_rbr_size / NXGE_RXDMA_POST_BATCH + 1));
1932 	}
1933 
1934 	p_all_cfgp->rbr_size = nxge_port_rbr_size;
1935 	nxge_port_rbr_spare_size = nxge_rbr_spare_size;
1936 
1937 	if (nxge_port_rbr_spare_size % NXGE_RXDMA_POST_BATCH) {
1938 		nxge_port_rbr_spare_size = (NXGE_RXDMA_POST_BATCH *
1939 			(nxge_port_rbr_spare_size / NXGE_RXDMA_POST_BATCH + 1));
1940 	}
1941 
1942 	/*
1943 	 * N2/NIU has limitation on the descriptor sizes (contiguous
1944 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
1945 	 * and little endian for control buffers (must use the ddi/dki mem alloc
1946 	 * function).
1947 	 */
1948 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
1949 	if (nxgep->niu_type == N2_NIU) {
1950 		nxge_port_rbr_spare_size = 0;
1951 		if ((nxge_port_rbr_size > NXGE_NIU_CONTIG_RBR_MAX) ||
1952 				(!ISP2(nxge_port_rbr_size))) {
1953 			nxge_port_rbr_size = NXGE_NIU_CONTIG_RBR_MAX;
1954 		}
1955 		if ((nxge_port_rcr_size > NXGE_NIU_CONTIG_RCR_MAX) ||
1956 				(!ISP2(nxge_port_rcr_size))) {
1957 			nxge_port_rcr_size = NXGE_NIU_CONTIG_RCR_MAX;
1958 		}
1959 	}
1960 #endif
1961 
1962 	rx_buf_alloc_size = (nxgep->rx_default_block_size *
1963 		(nxge_port_rbr_size + nxge_port_rbr_spare_size));
1964 
1965 	/*
1966 	 * Addresses of receive block ring, receive completion ring and the
1967 	 * mailbox must be all cache-aligned (64 bytes).
1968 	 */
1969 	rx_cntl_alloc_size = nxge_port_rbr_size + nxge_port_rbr_spare_size;
1970 	rx_cntl_alloc_size *= (sizeof (rx_desc_t));
1971 	rx_cntl_alloc_size += (sizeof (rcr_entry_t) * nxge_port_rcr_size);
1972 	rx_cntl_alloc_size += sizeof (rxdma_mailbox_t);
1973 
1974 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_alloc_rx_mem_pool: "
1975 		"nxge_port_rbr_size = %d nxge_port_rbr_spare_size = %d "
1976 		"nxge_port_rcr_size = %d "
1977 		"rx_cntl_alloc_size = %d",
1978 		nxge_port_rbr_size, nxge_port_rbr_spare_size,
1979 		nxge_port_rcr_size,
1980 		rx_cntl_alloc_size));
1981 
1982 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
1983 	if (nxgep->niu_type == N2_NIU) {
1984 		if (!ISP2(rx_buf_alloc_size)) {
1985 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1986 				"==> nxge_alloc_rx_mem_pool: "
1987 				" must be power of 2"));
1988 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1989 			goto nxge_alloc_rx_mem_pool_exit;
1990 		}
1991 
1992 		if (rx_buf_alloc_size > (1 << 22)) {
1993 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1994 				"==> nxge_alloc_rx_mem_pool: "
1995 				" limit size to 4M"));
1996 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1997 			goto nxge_alloc_rx_mem_pool_exit;
1998 		}
1999 
2000 		if (rx_cntl_alloc_size < 0x2000) {
2001 			rx_cntl_alloc_size = 0x2000;
2002 		}
2003 	}
2004 #endif
2005 	nxgep->nxge_port_rbr_size = nxge_port_rbr_size;
2006 	nxgep->nxge_port_rcr_size = nxge_port_rcr_size;
2007 
2008 	/*
2009 	 * Allocate memory for receive buffers and descriptor rings.
2010 	 * Replace allocation functions with interface functions provided
2011 	 * by the partition manager when it is available.
2012 	 */
2013 	/*
2014 	 * Allocate memory for the receive buffer blocks.
2015 	 */
2016 	for (i = 0; i < ndmas; i++) {
2017 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2018 			" nxge_alloc_rx_mem_pool to alloc mem: "
2019 			" dma %d dma_buf_p %llx &dma_buf_p %llx",
2020 			i, dma_buf_p[i], &dma_buf_p[i]));
2021 		num_chunks[i] = 0;
2022 		status = nxge_alloc_rx_buf_dma(nxgep, st_rdc, &dma_buf_p[i],
2023 				rx_buf_alloc_size,
2024 				nxgep->rx_default_block_size, &num_chunks[i]);
2025 		if (status != NXGE_OK) {
2026 			break;
2027 		}
2028 		st_rdc++;
2029 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2030 			" nxge_alloc_rx_mem_pool DONE  alloc mem: "
2031 			"dma %d dma_buf_p %llx &dma_buf_p %llx", i,
2032 			dma_buf_p[i], &dma_buf_p[i]));
2033 	}
2034 	if (i < ndmas) {
2035 		goto nxge_alloc_rx_mem_fail1;
2036 	}
2037 	/*
2038 	 * Allocate memory for descriptor rings and mailbox.
2039 	 */
2040 	st_rdc = p_cfgp->start_rdc;
2041 	for (j = 0; j < ndmas; j++) {
2042 		status = nxge_alloc_rx_cntl_dma(nxgep, st_rdc, &dma_cntl_p[j],
2043 					rx_cntl_alloc_size);
2044 		if (status != NXGE_OK) {
2045 			break;
2046 		}
2047 		st_rdc++;
2048 	}
2049 	if (j < ndmas) {
2050 		goto nxge_alloc_rx_mem_fail2;
2051 	}
2052 
2053 	dma_poolp->ndmas = ndmas;
2054 	dma_poolp->num_chunks = num_chunks;
2055 	dma_poolp->buf_allocated = B_TRUE;
2056 	nxgep->rx_buf_pool_p = dma_poolp;
2057 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2058 
2059 	dma_cntl_poolp->ndmas = ndmas;
2060 	dma_cntl_poolp->buf_allocated = B_TRUE;
2061 	nxgep->rx_cntl_pool_p = dma_cntl_poolp;
2062 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2063 
2064 	goto nxge_alloc_rx_mem_pool_exit;
2065 
2066 nxge_alloc_rx_mem_fail2:
2067 	/* Free control buffers */
2068 	j--;
2069 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2070 		"==> nxge_alloc_rx_mem_pool: freeing control bufs (%d)", j));
2071 	for (; j >= 0; j--) {
2072 		nxge_free_rx_cntl_dma(nxgep,
2073 			(p_nxge_dma_common_t)dma_cntl_p[j]);
2074 		NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2075 			"==> nxge_alloc_rx_mem_pool: control bufs freed (%d)",
2076 			j));
2077 	}
2078 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2079 		"==> nxge_alloc_rx_mem_pool: control bufs freed (%d)", j));
2080 
2081 nxge_alloc_rx_mem_fail1:
2082 	/* Free data buffers */
2083 	i--;
2084 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2085 		"==> nxge_alloc_rx_mem_pool: freeing data bufs (%d)", i));
2086 	for (; i >= 0; i--) {
2087 		nxge_free_rx_buf_dma(nxgep, (p_nxge_dma_common_t)dma_buf_p[i],
2088 			num_chunks[i]);
2089 	}
2090 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2091 		"==> nxge_alloc_rx_mem_pool: data bufs freed (%d)", i));
2092 
2093 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
2094 	KMEM_FREE(dma_poolp, sizeof (nxge_dma_pool_t));
2095 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_nxge_dma_common_t));
2096 	KMEM_FREE(dma_cntl_poolp, sizeof (nxge_dma_pool_t));
2097 	KMEM_FREE(dma_cntl_p, ndmas * sizeof (p_nxge_dma_common_t));
2098 
2099 nxge_alloc_rx_mem_pool_exit:
2100 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2101 		"<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2102 
2103 	return (status);
2104 }
2105 
2106 static void
2107 nxge_free_rx_mem_pool(p_nxge_t nxgep)
2108 {
2109 	uint32_t		i, ndmas;
2110 	p_nxge_dma_pool_t	dma_poolp;
2111 	p_nxge_dma_common_t	*dma_buf_p;
2112 	p_nxge_dma_pool_t	dma_cntl_poolp;
2113 	p_nxge_dma_common_t	*dma_cntl_p;
2114 	uint32_t 		*num_chunks;
2115 
2116 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_mem_pool"));
2117 
2118 	dma_poolp = nxgep->rx_buf_pool_p;
2119 	if (dma_poolp == NULL || (!dma_poolp->buf_allocated)) {
2120 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2121 			"<== nxge_free_rx_mem_pool "
2122 			"(null rx buf pool or buf not allocated"));
2123 		return;
2124 	}
2125 
2126 	dma_cntl_poolp = nxgep->rx_cntl_pool_p;
2127 	if (dma_cntl_poolp == NULL || (!dma_cntl_poolp->buf_allocated)) {
2128 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2129 			"<== nxge_free_rx_mem_pool "
2130 			"(null rx cntl buf pool or cntl buf not allocated"));
2131 		return;
2132 	}
2133 
2134 	dma_buf_p = dma_poolp->dma_buf_pool_p;
2135 	num_chunks = dma_poolp->num_chunks;
2136 
2137 	dma_cntl_p = dma_cntl_poolp->dma_buf_pool_p;
2138 	ndmas = dma_cntl_poolp->ndmas;
2139 
2140 	for (i = 0; i < ndmas; i++) {
2141 		nxge_free_rx_buf_dma(nxgep, dma_buf_p[i], num_chunks[i]);
2142 	}
2143 
2144 	for (i = 0; i < ndmas; i++) {
2145 		nxge_free_rx_cntl_dma(nxgep, dma_cntl_p[i]);
2146 	}
2147 
2148 	for (i = 0; i < ndmas; i++) {
2149 		KMEM_FREE(dma_buf_p[i],
2150 			sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2151 		KMEM_FREE(dma_cntl_p[i], sizeof (nxge_dma_common_t));
2152 	}
2153 
2154 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
2155 	KMEM_FREE(dma_cntl_p, ndmas * sizeof (p_nxge_dma_common_t));
2156 	KMEM_FREE(dma_cntl_poolp, sizeof (nxge_dma_pool_t));
2157 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_nxge_dma_common_t));
2158 	KMEM_FREE(dma_poolp, sizeof (nxge_dma_pool_t));
2159 
2160 	nxgep->rx_buf_pool_p = NULL;
2161 	nxgep->rx_cntl_pool_p = NULL;
2162 
2163 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_rx_mem_pool"));
2164 }
2165 
2166 
2167 static nxge_status_t
2168 nxge_alloc_rx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2169 	p_nxge_dma_common_t *dmap,
2170 	size_t alloc_size, size_t block_size, uint32_t *num_chunks)
2171 {
2172 	p_nxge_dma_common_t 	rx_dmap;
2173 	nxge_status_t		status = NXGE_OK;
2174 	size_t			total_alloc_size;
2175 	size_t			allocated = 0;
2176 	int			i, size_index, array_size;
2177 
2178 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_buf_dma"));
2179 
2180 	rx_dmap = (p_nxge_dma_common_t)
2181 			KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2182 			KM_SLEEP);
2183 
2184 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2185 		" alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
2186 		dma_channel, alloc_size, block_size, dmap));
2187 
2188 	total_alloc_size = alloc_size;
2189 
2190 #if defined(RX_USE_RECLAIM_POST)
2191 	total_alloc_size = alloc_size + alloc_size/4;
2192 #endif
2193 
2194 	i = 0;
2195 	size_index = 0;
2196 	array_size =  sizeof (alloc_sizes)/sizeof (size_t);
2197 	while ((alloc_sizes[size_index] < alloc_size) &&
2198 			(size_index < array_size))
2199 			size_index++;
2200 	if (size_index >= array_size) {
2201 		size_index = array_size - 1;
2202 	}
2203 
2204 	while ((allocated < total_alloc_size) &&
2205 			(size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2206 		rx_dmap[i].dma_chunk_index = i;
2207 		rx_dmap[i].block_size = block_size;
2208 		rx_dmap[i].alength = alloc_sizes[size_index];
2209 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
2210 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2211 		rx_dmap[i].dma_channel = dma_channel;
2212 		rx_dmap[i].contig_alloc_type = B_FALSE;
2213 
2214 		/*
2215 		 * N2/NIU: data buffers must be contiguous as the driver
2216 		 *	   needs to call Hypervisor api to set up
2217 		 *	   logical pages.
2218 		 */
2219 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2220 			rx_dmap[i].contig_alloc_type = B_TRUE;
2221 		}
2222 
2223 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2224 			"alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
2225 			"i %d nblocks %d alength %d",
2226 			dma_channel, i, &rx_dmap[i], block_size,
2227 			i, rx_dmap[i].nblocks,
2228 			rx_dmap[i].alength));
2229 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2230 			&nxge_rx_dma_attr,
2231 			rx_dmap[i].alength,
2232 			&nxge_dev_buf_dma_acc_attr,
2233 			DDI_DMA_READ | DDI_DMA_STREAMING,
2234 			(p_nxge_dma_common_t)(&rx_dmap[i]));
2235 		if (status != NXGE_OK) {
2236 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2237 				" nxge_alloc_rx_buf_dma: Alloc Failed "));
2238 			size_index--;
2239 		} else {
2240 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2241 				" alloc_rx_buf_dma allocated rdc %d "
2242 				"chunk %d size %x dvma %x bufp %llx ",
2243 				dma_channel, i, rx_dmap[i].alength,
2244 				rx_dmap[i].ioaddr_pp, &rx_dmap[i]));
2245 			i++;
2246 			allocated += alloc_sizes[size_index];
2247 		}
2248 	}
2249 
2250 
2251 	if (allocated < total_alloc_size) {
2252 		goto nxge_alloc_rx_mem_fail1;
2253 	}
2254 
2255 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2256 		" alloc_rx_buf_dma rdc %d allocated %d chunks",
2257 		dma_channel, i));
2258 	*num_chunks = i;
2259 	*dmap = rx_dmap;
2260 
2261 	goto nxge_alloc_rx_mem_exit;
2262 
2263 nxge_alloc_rx_mem_fail1:
2264 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2265 
2266 nxge_alloc_rx_mem_exit:
2267 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2268 		"<== nxge_alloc_rx_buf_dma status 0x%08x", status));
2269 
2270 	return (status);
2271 }
2272 
2273 /*ARGSUSED*/
2274 static void
2275 nxge_free_rx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2276     uint32_t num_chunks)
2277 {
2278 	int		i;
2279 
2280 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2281 		"==> nxge_free_rx_buf_dma: # of chunks %d", num_chunks));
2282 
2283 	for (i = 0; i < num_chunks; i++) {
2284 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2285 			"==> nxge_free_rx_buf_dma: chunk %d dmap 0x%llx",
2286 				i, dmap));
2287 		nxge_dma_mem_free(dmap++);
2288 	}
2289 
2290 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_buf_dma"));
2291 }
2292 
2293 /*ARGSUSED*/
2294 static nxge_status_t
2295 nxge_alloc_rx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2296     p_nxge_dma_common_t *dmap, size_t size)
2297 {
2298 	p_nxge_dma_common_t 	rx_dmap;
2299 	nxge_status_t		status = NXGE_OK;
2300 
2301 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_cntl_dma"));
2302 
2303 	rx_dmap = (p_nxge_dma_common_t)
2304 			KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2305 
2306 	rx_dmap->contig_alloc_type = B_FALSE;
2307 
2308 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2309 			&nxge_desc_dma_attr,
2310 			size,
2311 			&nxge_dev_desc_dma_acc_attr,
2312 			DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2313 			rx_dmap);
2314 	if (status != NXGE_OK) {
2315 		goto nxge_alloc_rx_cntl_dma_fail1;
2316 	}
2317 
2318 	*dmap = rx_dmap;
2319 	goto nxge_alloc_rx_cntl_dma_exit;
2320 
2321 nxge_alloc_rx_cntl_dma_fail1:
2322 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t));
2323 
2324 nxge_alloc_rx_cntl_dma_exit:
2325 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2326 		"<== nxge_alloc_rx_cntl_dma status 0x%08x", status));
2327 
2328 	return (status);
2329 }
2330 
2331 /*ARGSUSED*/
2332 static void
2333 nxge_free_rx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2334 {
2335 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_rx_cntl_dma"));
2336 
2337 	nxge_dma_mem_free(dmap);
2338 
2339 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_rx_cntl_dma"));
2340 }
2341 
2342 static nxge_status_t
2343 nxge_alloc_tx_mem_pool(p_nxge_t nxgep)
2344 {
2345 	nxge_status_t		status = NXGE_OK;
2346 	int			i, j;
2347 	uint32_t		ndmas, st_tdc;
2348 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
2349 	p_nxge_hw_pt_cfg_t	p_cfgp;
2350 	p_nxge_dma_pool_t	dma_poolp;
2351 	p_nxge_dma_common_t	*dma_buf_p;
2352 	p_nxge_dma_pool_t	dma_cntl_poolp;
2353 	p_nxge_dma_common_t	*dma_cntl_p;
2354 	size_t			tx_buf_alloc_size;
2355 	size_t			tx_cntl_alloc_size;
2356 	uint32_t		*num_chunks; /* per dma */
2357 	uint32_t		bcopy_thresh;
2358 
2359 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool"));
2360 
2361 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
2362 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
2363 	st_tdc = p_cfgp->start_tdc;
2364 	ndmas = p_cfgp->max_tdcs;
2365 
2366 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool: "
2367 		"p_cfgp 0x%016llx start_tdc %d ndmas %d nxgep->max_tdcs %d",
2368 		p_cfgp, p_cfgp->start_tdc, p_cfgp->max_tdcs, nxgep->max_tdcs));
2369 	/*
2370 	 * Allocate memory for each transmit DMA channel.
2371 	 */
2372 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2373 			KM_SLEEP);
2374 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2375 			sizeof (p_nxge_dma_common_t) * ndmas, KM_SLEEP);
2376 
2377 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2378 			KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2379 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2380 			sizeof (p_nxge_dma_common_t) * ndmas, KM_SLEEP);
2381 
2382 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2383 	/*
2384 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2385 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2386 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2387 	 * function). The transmit ring is limited to 8K (includes the
2388 	 * mailbox).
2389 	 */
2390 	if (nxgep->niu_type == N2_NIU) {
2391 		if ((nxge_tx_ring_size > NXGE_NIU_CONTIG_TX_MAX) ||
2392 			(!ISP2(nxge_tx_ring_size))) {
2393 			nxge_tx_ring_size = NXGE_NIU_CONTIG_TX_MAX;
2394 		}
2395 	}
2396 #endif
2397 
2398 	nxgep->nxge_port_tx_ring_size = nxge_tx_ring_size;
2399 
2400 	/*
2401 	 * Assume that each DMA channel will be configured with default
2402 	 * transmit bufer size for copying transmit data.
2403 	 * (For packet payload over this limit, packets will not be
2404 	 *  copied.)
2405 	 */
2406 	if (nxgep->niu_type == N2_NIU) {
2407 		bcopy_thresh = TX_BCOPY_SIZE;
2408 	} else {
2409 		bcopy_thresh = nxge_bcopy_thresh;
2410 	}
2411 	tx_buf_alloc_size = (bcopy_thresh * nxge_tx_ring_size);
2412 
2413 	/*
2414 	 * Addresses of transmit descriptor ring and the
2415 	 * mailbox must be all cache-aligned (64 bytes).
2416 	 */
2417 	tx_cntl_alloc_size = nxge_tx_ring_size;
2418 	tx_cntl_alloc_size *= (sizeof (tx_desc_t));
2419 	tx_cntl_alloc_size += sizeof (txdma_mailbox_t);
2420 
2421 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2422 	if (nxgep->niu_type == N2_NIU) {
2423 		if (!ISP2(tx_buf_alloc_size)) {
2424 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2425 				"==> nxge_alloc_tx_mem_pool: "
2426 				" must be power of 2"));
2427 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2428 			goto nxge_alloc_tx_mem_pool_exit;
2429 		}
2430 
2431 		if (tx_buf_alloc_size > (1 << 22)) {
2432 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2433 				"==> nxge_alloc_tx_mem_pool: "
2434 				" limit size to 4M"));
2435 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2436 			goto nxge_alloc_tx_mem_pool_exit;
2437 		}
2438 
2439 		if (tx_cntl_alloc_size < 0x2000) {
2440 			tx_cntl_alloc_size = 0x2000;
2441 		}
2442 	}
2443 #endif
2444 
2445 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2446 			sizeof (uint32_t) * ndmas, KM_SLEEP);
2447 
2448 	/*
2449 	 * Allocate memory for transmit buffers and descriptor rings.
2450 	 * Replace allocation functions with interface functions provided
2451 	 * by the partition manager when it is available.
2452 	 *
2453 	 * Allocate memory for the transmit buffer pool.
2454 	 */
2455 	for (i = 0; i < ndmas; i++) {
2456 		num_chunks[i] = 0;
2457 		status = nxge_alloc_tx_buf_dma(nxgep, st_tdc, &dma_buf_p[i],
2458 					tx_buf_alloc_size,
2459 					bcopy_thresh, &num_chunks[i]);
2460 		if (status != NXGE_OK) {
2461 			break;
2462 		}
2463 		st_tdc++;
2464 	}
2465 	if (i < ndmas) {
2466 		goto nxge_alloc_tx_mem_pool_fail1;
2467 	}
2468 
2469 	st_tdc = p_cfgp->start_tdc;
2470 	/*
2471 	 * Allocate memory for descriptor rings and mailbox.
2472 	 */
2473 	for (j = 0; j < ndmas; j++) {
2474 		status = nxge_alloc_tx_cntl_dma(nxgep, st_tdc, &dma_cntl_p[j],
2475 					tx_cntl_alloc_size);
2476 		if (status != NXGE_OK) {
2477 			break;
2478 		}
2479 		st_tdc++;
2480 	}
2481 	if (j < ndmas) {
2482 		goto nxge_alloc_tx_mem_pool_fail2;
2483 	}
2484 
2485 	dma_poolp->ndmas = ndmas;
2486 	dma_poolp->num_chunks = num_chunks;
2487 	dma_poolp->buf_allocated = B_TRUE;
2488 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2489 	nxgep->tx_buf_pool_p = dma_poolp;
2490 
2491 	dma_cntl_poolp->ndmas = ndmas;
2492 	dma_cntl_poolp->buf_allocated = B_TRUE;
2493 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2494 	nxgep->tx_cntl_pool_p = dma_cntl_poolp;
2495 
2496 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2497 		"==> nxge_alloc_tx_mem_pool: start_tdc %d "
2498 		"ndmas %d poolp->ndmas %d",
2499 		st_tdc, ndmas, dma_poolp->ndmas));
2500 
2501 	goto nxge_alloc_tx_mem_pool_exit;
2502 
2503 nxge_alloc_tx_mem_pool_fail2:
2504 	/* Free control buffers */
2505 	j--;
2506 	for (; j >= 0; j--) {
2507 		nxge_free_tx_cntl_dma(nxgep,
2508 			(p_nxge_dma_common_t)dma_cntl_p[j]);
2509 	}
2510 
2511 nxge_alloc_tx_mem_pool_fail1:
2512 	/* Free data buffers */
2513 	i--;
2514 	for (; i >= 0; i--) {
2515 		nxge_free_tx_buf_dma(nxgep, (p_nxge_dma_common_t)dma_buf_p[i],
2516 			num_chunks[i]);
2517 	}
2518 
2519 	KMEM_FREE(dma_poolp, sizeof (nxge_dma_pool_t));
2520 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_nxge_dma_common_t));
2521 	KMEM_FREE(dma_cntl_poolp, sizeof (nxge_dma_pool_t));
2522 	KMEM_FREE(dma_cntl_p, ndmas * sizeof (p_nxge_dma_common_t));
2523 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
2524 
2525 nxge_alloc_tx_mem_pool_exit:
2526 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2527 		"<== nxge_alloc_tx_mem_pool:status 0x%08x", status));
2528 
2529 	return (status);
2530 }
2531 
2532 static nxge_status_t
2533 nxge_alloc_tx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2534     p_nxge_dma_common_t *dmap, size_t alloc_size,
2535     size_t block_size, uint32_t *num_chunks)
2536 {
2537 	p_nxge_dma_common_t 	tx_dmap;
2538 	nxge_status_t		status = NXGE_OK;
2539 	size_t			total_alloc_size;
2540 	size_t			allocated = 0;
2541 	int			i, size_index, array_size;
2542 
2543 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_buf_dma"));
2544 
2545 	tx_dmap = (p_nxge_dma_common_t)
2546 		KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2547 			KM_SLEEP);
2548 
2549 	total_alloc_size = alloc_size;
2550 	i = 0;
2551 	size_index = 0;
2552 	array_size =  sizeof (alloc_sizes) /  sizeof (size_t);
2553 	while ((alloc_sizes[size_index] < alloc_size) &&
2554 		(size_index < array_size))
2555 		size_index++;
2556 	if (size_index >= array_size) {
2557 		size_index = array_size - 1;
2558 	}
2559 
2560 	while ((allocated < total_alloc_size) &&
2561 			(size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2562 
2563 		tx_dmap[i].dma_chunk_index = i;
2564 		tx_dmap[i].block_size = block_size;
2565 		tx_dmap[i].alength = alloc_sizes[size_index];
2566 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
2567 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2568 		tx_dmap[i].dma_channel = dma_channel;
2569 		tx_dmap[i].contig_alloc_type = B_FALSE;
2570 
2571 		/*
2572 		 * N2/NIU: data buffers must be contiguous as the driver
2573 		 *	   needs to call Hypervisor api to set up
2574 		 *	   logical pages.
2575 		 */
2576 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2577 			tx_dmap[i].contig_alloc_type = B_TRUE;
2578 		}
2579 
2580 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2581 			&nxge_tx_dma_attr,
2582 			tx_dmap[i].alength,
2583 			&nxge_dev_buf_dma_acc_attr,
2584 			DDI_DMA_WRITE | DDI_DMA_STREAMING,
2585 			(p_nxge_dma_common_t)(&tx_dmap[i]));
2586 		if (status != NXGE_OK) {
2587 			size_index--;
2588 		} else {
2589 			i++;
2590 			allocated += alloc_sizes[size_index];
2591 		}
2592 	}
2593 
2594 	if (allocated < total_alloc_size) {
2595 		goto nxge_alloc_tx_mem_fail1;
2596 	}
2597 
2598 	*num_chunks = i;
2599 	*dmap = tx_dmap;
2600 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2601 		"==> nxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
2602 		*dmap, i));
2603 	goto nxge_alloc_tx_mem_exit;
2604 
2605 nxge_alloc_tx_mem_fail1:
2606 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2607 
2608 nxge_alloc_tx_mem_exit:
2609 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2610 		"<== nxge_alloc_tx_buf_dma status 0x%08x", status));
2611 
2612 	return (status);
2613 }
2614 
2615 /*ARGSUSED*/
2616 static void
2617 nxge_free_tx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2618     uint32_t num_chunks)
2619 {
2620 	int		i;
2621 
2622 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_tx_buf_dma"));
2623 
2624 	for (i = 0; i < num_chunks; i++) {
2625 		nxge_dma_mem_free(dmap++);
2626 	}
2627 
2628 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_tx_buf_dma"));
2629 }
2630 
2631 /*ARGSUSED*/
2632 static nxge_status_t
2633 nxge_alloc_tx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2634     p_nxge_dma_common_t *dmap, size_t size)
2635 {
2636 	p_nxge_dma_common_t 	tx_dmap;
2637 	nxge_status_t		status = NXGE_OK;
2638 
2639 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_cntl_dma"));
2640 	tx_dmap = (p_nxge_dma_common_t)
2641 			KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2642 
2643 	tx_dmap->contig_alloc_type = B_FALSE;
2644 
2645 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2646 			&nxge_desc_dma_attr,
2647 			size,
2648 			&nxge_dev_desc_dma_acc_attr,
2649 			DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2650 			tx_dmap);
2651 	if (status != NXGE_OK) {
2652 		goto nxge_alloc_tx_cntl_dma_fail1;
2653 	}
2654 
2655 	*dmap = tx_dmap;
2656 	goto nxge_alloc_tx_cntl_dma_exit;
2657 
2658 nxge_alloc_tx_cntl_dma_fail1:
2659 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t));
2660 
2661 nxge_alloc_tx_cntl_dma_exit:
2662 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2663 		"<== nxge_alloc_tx_cntl_dma status 0x%08x", status));
2664 
2665 	return (status);
2666 }
2667 
2668 /*ARGSUSED*/
2669 static void
2670 nxge_free_tx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2671 {
2672 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_tx_cntl_dma"));
2673 
2674 	nxge_dma_mem_free(dmap);
2675 
2676 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_tx_cntl_dma"));
2677 }
2678 
2679 static void
2680 nxge_free_tx_mem_pool(p_nxge_t nxgep)
2681 {
2682 	uint32_t		i, ndmas;
2683 	p_nxge_dma_pool_t	dma_poolp;
2684 	p_nxge_dma_common_t	*dma_buf_p;
2685 	p_nxge_dma_pool_t	dma_cntl_poolp;
2686 	p_nxge_dma_common_t	*dma_cntl_p;
2687 	uint32_t 		*num_chunks;
2688 
2689 	NXGE_DEBUG_MSG((nxgep, MEM3_CTL, "==> nxge_free_tx_mem_pool"));
2690 
2691 	dma_poolp = nxgep->tx_buf_pool_p;
2692 	if (dma_poolp == NULL || (!dma_poolp->buf_allocated)) {
2693 		NXGE_DEBUG_MSG((nxgep, MEM3_CTL,
2694 			"<== nxge_free_tx_mem_pool "
2695 			"(null rx buf pool or buf not allocated"));
2696 		return;
2697 	}
2698 
2699 	dma_cntl_poolp = nxgep->tx_cntl_pool_p;
2700 	if (dma_cntl_poolp == NULL || (!dma_cntl_poolp->buf_allocated)) {
2701 		NXGE_DEBUG_MSG((nxgep, MEM3_CTL,
2702 			"<== nxge_free_tx_mem_pool "
2703 			"(null tx cntl buf pool or cntl buf not allocated"));
2704 		return;
2705 	}
2706 
2707 	dma_buf_p = dma_poolp->dma_buf_pool_p;
2708 	num_chunks = dma_poolp->num_chunks;
2709 
2710 	dma_cntl_p = dma_cntl_poolp->dma_buf_pool_p;
2711 	ndmas = dma_cntl_poolp->ndmas;
2712 
2713 	for (i = 0; i < ndmas; i++) {
2714 		nxge_free_tx_buf_dma(nxgep, dma_buf_p[i], num_chunks[i]);
2715 	}
2716 
2717 	for (i = 0; i < ndmas; i++) {
2718 		nxge_free_tx_cntl_dma(nxgep, dma_cntl_p[i]);
2719 	}
2720 
2721 	for (i = 0; i < ndmas; i++) {
2722 		KMEM_FREE(dma_buf_p[i],
2723 			sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2724 		KMEM_FREE(dma_cntl_p[i], sizeof (nxge_dma_common_t));
2725 	}
2726 
2727 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
2728 	KMEM_FREE(dma_cntl_p, ndmas * sizeof (p_nxge_dma_common_t));
2729 	KMEM_FREE(dma_cntl_poolp, sizeof (nxge_dma_pool_t));
2730 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_nxge_dma_common_t));
2731 	KMEM_FREE(dma_poolp, sizeof (nxge_dma_pool_t));
2732 
2733 	nxgep->tx_buf_pool_p = NULL;
2734 	nxgep->tx_cntl_pool_p = NULL;
2735 
2736 	NXGE_DEBUG_MSG((nxgep, MEM3_CTL, "<== nxge_free_tx_mem_pool"));
2737 }
2738 
2739 /*ARGSUSED*/
2740 static nxge_status_t
2741 nxge_dma_mem_alloc(p_nxge_t nxgep, dma_method_t method,
2742 	struct ddi_dma_attr *dma_attrp,
2743 	size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
2744 	p_nxge_dma_common_t dma_p)
2745 {
2746 	caddr_t 		kaddrp;
2747 	int			ddi_status = DDI_SUCCESS;
2748 	boolean_t		contig_alloc_type;
2749 
2750 	contig_alloc_type = dma_p->contig_alloc_type;
2751 
2752 	if (contig_alloc_type && (nxgep->niu_type != N2_NIU)) {
2753 		/*
2754 		 * contig_alloc_type for contiguous memory only allowed
2755 		 * for N2/NIU.
2756 		 */
2757 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2758 			"nxge_dma_mem_alloc: alloc type not allows (%d)",
2759 			dma_p->contig_alloc_type));
2760 		return (NXGE_ERROR | NXGE_DDI_FAILED);
2761 	}
2762 
2763 	dma_p->dma_handle = NULL;
2764 	dma_p->acc_handle = NULL;
2765 	dma_p->kaddrp = dma_p->last_kaddrp = NULL;
2766 	dma_p->first_ioaddr_pp = dma_p->last_ioaddr_pp = NULL;
2767 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, dma_attrp,
2768 		DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
2769 	if (ddi_status != DDI_SUCCESS) {
2770 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2771 			"nxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
2772 		return (NXGE_ERROR | NXGE_DDI_FAILED);
2773 	}
2774 
2775 	switch (contig_alloc_type) {
2776 	case B_FALSE:
2777 		ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle, length,
2778 			acc_attr_p,
2779 			xfer_flags,
2780 			DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
2781 			&dma_p->acc_handle);
2782 		if (ddi_status != DDI_SUCCESS) {
2783 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2784 				"nxge_dma_mem_alloc:ddi_dma_mem_alloc failed"));
2785 			ddi_dma_free_handle(&dma_p->dma_handle);
2786 			dma_p->dma_handle = NULL;
2787 			return (NXGE_ERROR | NXGE_DDI_FAILED);
2788 		}
2789 		if (dma_p->alength < length) {
2790 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2791 				"nxge_dma_mem_alloc:ddi_dma_mem_alloc "
2792 				"< length."));
2793 			ddi_dma_mem_free(&dma_p->acc_handle);
2794 			ddi_dma_free_handle(&dma_p->dma_handle);
2795 			dma_p->acc_handle = NULL;
2796 			dma_p->dma_handle = NULL;
2797 			return (NXGE_ERROR);
2798 		}
2799 
2800 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
2801 			kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
2802 			&dma_p->dma_cookie, &dma_p->ncookies);
2803 		if (ddi_status != DDI_DMA_MAPPED) {
2804 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2805 				"nxge_dma_mem_alloc:di_dma_addr_bind failed "
2806 				"(staus 0x%x ncookies %d.)", ddi_status,
2807 				dma_p->ncookies));
2808 			if (dma_p->acc_handle) {
2809 				ddi_dma_mem_free(&dma_p->acc_handle);
2810 				dma_p->acc_handle = NULL;
2811 			}
2812 			ddi_dma_free_handle(&dma_p->dma_handle);
2813 			dma_p->dma_handle = NULL;
2814 			return (NXGE_ERROR | NXGE_DDI_FAILED);
2815 		}
2816 
2817 		if (dma_p->ncookies != 1) {
2818 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2819 				"nxge_dma_mem_alloc:ddi_dma_addr_bind "
2820 				"> 1 cookie"
2821 				"(staus 0x%x ncookies %d.)", ddi_status,
2822 				dma_p->ncookies));
2823 			if (dma_p->acc_handle) {
2824 				ddi_dma_mem_free(&dma_p->acc_handle);
2825 				dma_p->acc_handle = NULL;
2826 			}
2827 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
2828 			ddi_dma_free_handle(&dma_p->dma_handle);
2829 			dma_p->dma_handle = NULL;
2830 			return (NXGE_ERROR);
2831 		}
2832 		break;
2833 
2834 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2835 	case B_TRUE:
2836 		kaddrp = (caddr_t)contig_mem_alloc(length);
2837 		if (kaddrp == NULL) {
2838 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2839 				"nxge_dma_mem_alloc:contig_mem_alloc failed."));
2840 			ddi_dma_free_handle(&dma_p->dma_handle);
2841 			return (NXGE_ERROR | NXGE_DDI_FAILED);
2842 		}
2843 
2844 		dma_p->alength = length;
2845 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
2846 			kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
2847 			&dma_p->dma_cookie, &dma_p->ncookies);
2848 		if (ddi_status != DDI_DMA_MAPPED) {
2849 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2850 				"nxge_dma_mem_alloc:di_dma_addr_bind failed "
2851 				"(status 0x%x ncookies %d.)", ddi_status,
2852 				dma_p->ncookies));
2853 
2854 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2855 				"==> nxge_dma_mem_alloc: (not mapped)"
2856 				"length %lu (0x%x) "
2857 				"free contig kaddrp $%p "
2858 				"va_to_pa $%p",
2859 				length, length,
2860 				kaddrp,
2861 				va_to_pa(kaddrp)));
2862 
2863 
2864 			contig_mem_free((void *)kaddrp, length);
2865 			ddi_dma_free_handle(&dma_p->dma_handle);
2866 
2867 			dma_p->dma_handle = NULL;
2868 			dma_p->acc_handle = NULL;
2869 			dma_p->alength = NULL;
2870 			dma_p->kaddrp = NULL;
2871 
2872 			return (NXGE_ERROR | NXGE_DDI_FAILED);
2873 		}
2874 
2875 		if (dma_p->ncookies != 1 ||
2876 			(dma_p->dma_cookie.dmac_laddress == NULL)) {
2877 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2878 				"nxge_dma_mem_alloc:di_dma_addr_bind > 1 "
2879 				"cookie or "
2880 				"dmac_laddress is NULL $%p size %d "
2881 				" (status 0x%x ncookies %d.)",
2882 				ddi_status,
2883 				dma_p->dma_cookie.dmac_laddress,
2884 				dma_p->dma_cookie.dmac_size,
2885 				dma_p->ncookies));
2886 
2887 			contig_mem_free((void *)kaddrp, length);
2888 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
2889 			ddi_dma_free_handle(&dma_p->dma_handle);
2890 
2891 			dma_p->alength = 0;
2892 			dma_p->dma_handle = NULL;
2893 			dma_p->acc_handle = NULL;
2894 			dma_p->kaddrp = NULL;
2895 
2896 			return (NXGE_ERROR | NXGE_DDI_FAILED);
2897 		}
2898 		break;
2899 
2900 #else
2901 	case B_TRUE:
2902 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2903 			"nxge_dma_mem_alloc: invalid alloc type for !sun4v"));
2904 		return (NXGE_ERROR | NXGE_DDI_FAILED);
2905 #endif
2906 	}
2907 
2908 	dma_p->kaddrp = kaddrp;
2909 	dma_p->last_kaddrp = (unsigned char *)kaddrp +
2910 			dma_p->alength - RXBUF_64B_ALIGNED;
2911 #if defined(__i386)
2912 	dma_p->ioaddr_pp =
2913 		(unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
2914 #else
2915 	dma_p->ioaddr_pp = (unsigned char *)dma_p->dma_cookie.dmac_laddress;
2916 #endif
2917 	dma_p->last_ioaddr_pp =
2918 #if defined(__i386)
2919 		(unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress +
2920 #else
2921 		(unsigned char *)dma_p->dma_cookie.dmac_laddress +
2922 #endif
2923 				dma_p->alength - RXBUF_64B_ALIGNED;
2924 
2925 	NPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
2926 
2927 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2928 	dma_p->orig_ioaddr_pp =
2929 		(unsigned char *)dma_p->dma_cookie.dmac_laddress;
2930 	dma_p->orig_alength = length;
2931 	dma_p->orig_kaddrp = kaddrp;
2932 	dma_p->orig_vatopa = (uint64_t)va_to_pa(kaddrp);
2933 #endif
2934 
2935 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_dma_mem_alloc: "
2936 		"dma buffer allocated: dma_p $%p "
2937 		"return dmac_ladress from cookie $%p cookie dmac_size %d "
2938 		"dma_p->ioaddr_p $%p "
2939 		"dma_p->orig_ioaddr_p $%p "
2940 		"orig_vatopa $%p "
2941 		"alength %d (0x%x) "
2942 		"kaddrp $%p "
2943 		"length %d (0x%x)",
2944 		dma_p,
2945 		dma_p->dma_cookie.dmac_laddress, dma_p->dma_cookie.dmac_size,
2946 		dma_p->ioaddr_pp,
2947 		dma_p->orig_ioaddr_pp,
2948 		dma_p->orig_vatopa,
2949 		dma_p->alength, dma_p->alength,
2950 		kaddrp,
2951 		length, length));
2952 
2953 	return (NXGE_OK);
2954 }
2955 
2956 static void
2957 nxge_dma_mem_free(p_nxge_dma_common_t dma_p)
2958 {
2959 	if (dma_p->dma_handle != NULL) {
2960 		if (dma_p->ncookies) {
2961 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
2962 			dma_p->ncookies = 0;
2963 		}
2964 		ddi_dma_free_handle(&dma_p->dma_handle);
2965 		dma_p->dma_handle = NULL;
2966 	}
2967 
2968 	if (dma_p->acc_handle != NULL) {
2969 		ddi_dma_mem_free(&dma_p->acc_handle);
2970 		dma_p->acc_handle = NULL;
2971 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
2972 	}
2973 
2974 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2975 	if (dma_p->contig_alloc_type &&
2976 			dma_p->orig_kaddrp && dma_p->orig_alength) {
2977 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_mem_free: "
2978 			"kaddrp $%p (orig_kaddrp $%p)"
2979 			"mem type %d ",
2980 			"orig_alength %d "
2981 			"alength 0x%x (%d)",
2982 			dma_p->kaddrp,
2983 			dma_p->orig_kaddrp,
2984 			dma_p->contig_alloc_type,
2985 			dma_p->orig_alength,
2986 			dma_p->alength, dma_p->alength));
2987 
2988 		contig_mem_free(dma_p->orig_kaddrp, dma_p->orig_alength);
2989 		dma_p->orig_alength = NULL;
2990 		dma_p->orig_kaddrp = NULL;
2991 		dma_p->contig_alloc_type = B_FALSE;
2992 	}
2993 #endif
2994 	dma_p->kaddrp = NULL;
2995 	dma_p->alength = NULL;
2996 }
2997 
2998 /*
2999  *	nxge_m_start() -- start transmitting and receiving.
3000  *
3001  *	This function is called by the MAC layer when the first
3002  *	stream is open to prepare the hardware ready for sending
3003  *	and transmitting packets.
3004  */
3005 static int
3006 nxge_m_start(void *arg)
3007 {
3008 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3009 
3010 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_start"));
3011 
3012 	MUTEX_ENTER(nxgep->genlock);
3013 	if (nxge_init(nxgep) != NXGE_OK) {
3014 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3015 			"<== nxge_m_start: initialization failed"));
3016 		MUTEX_EXIT(nxgep->genlock);
3017 		return (EIO);
3018 	}
3019 
3020 	if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
3021 		goto nxge_m_start_exit;
3022 	/*
3023 	 * Start timer to check the system error and tx hangs
3024 	 */
3025 	nxgep->nxge_timerid = nxge_start_timer(nxgep, nxge_check_hw_state,
3026 		NXGE_CHECK_TIMER);
3027 
3028 	nxgep->link_notify = B_TRUE;
3029 
3030 	nxgep->nxge_mac_state = NXGE_MAC_STARTED;
3031 
3032 nxge_m_start_exit:
3033 	MUTEX_EXIT(nxgep->genlock);
3034 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_start"));
3035 	return (0);
3036 }
3037 
3038 /*
3039  *	nxge_m_stop(): stop transmitting and receiving.
3040  */
3041 static void
3042 nxge_m_stop(void *arg)
3043 {
3044 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3045 
3046 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_stop"));
3047 
3048 	if (nxgep->nxge_timerid) {
3049 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
3050 		nxgep->nxge_timerid = 0;
3051 	}
3052 
3053 	MUTEX_ENTER(nxgep->genlock);
3054 	nxge_uninit(nxgep);
3055 
3056 	nxgep->nxge_mac_state = NXGE_MAC_STOPPED;
3057 
3058 	MUTEX_EXIT(nxgep->genlock);
3059 
3060 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_stop"));
3061 }
3062 
3063 static int
3064 nxge_m_unicst(void *arg, const uint8_t *macaddr)
3065 {
3066 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3067 	struct 		ether_addr addrp;
3068 
3069 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "==> nxge_m_unicst"));
3070 
3071 	bcopy(macaddr, (uint8_t *)&addrp, ETHERADDRL);
3072 	if (nxge_set_mac_addr(nxgep, &addrp)) {
3073 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3074 			"<== nxge_m_unicst: set unitcast failed"));
3075 		return (EINVAL);
3076 	}
3077 
3078 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_unicst"));
3079 
3080 	return (0);
3081 }
3082 
3083 static int
3084 nxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
3085 {
3086 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3087 	struct 		ether_addr addrp;
3088 
3089 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3090 		"==> nxge_m_multicst: add %d", add));
3091 
3092 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
3093 	if (add) {
3094 		if (nxge_add_mcast_addr(nxgep, &addrp)) {
3095 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3096 				"<== nxge_m_multicst: add multicast failed"));
3097 			return (EINVAL);
3098 		}
3099 	} else {
3100 		if (nxge_del_mcast_addr(nxgep, &addrp)) {
3101 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3102 				"<== nxge_m_multicst: del multicast failed"));
3103 			return (EINVAL);
3104 		}
3105 	}
3106 
3107 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_multicst"));
3108 
3109 	return (0);
3110 }
3111 
3112 static int
3113 nxge_m_promisc(void *arg, boolean_t on)
3114 {
3115 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3116 
3117 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3118 		"==> nxge_m_promisc: on %d", on));
3119 
3120 	if (nxge_set_promisc(nxgep, on)) {
3121 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3122 			"<== nxge_m_promisc: set promisc failed"));
3123 		return (EINVAL);
3124 	}
3125 
3126 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3127 		"<== nxge_m_promisc: on %d", on));
3128 
3129 	return (0);
3130 }
3131 
3132 static void
3133 nxge_m_ioctl(void *arg,  queue_t *wq, mblk_t *mp)
3134 {
3135 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3136 	struct 		iocblk *iocp;
3137 	boolean_t 	need_privilege;
3138 	int 		err;
3139 	int 		cmd;
3140 
3141 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl"));
3142 
3143 	iocp = (struct iocblk *)mp->b_rptr;
3144 	iocp->ioc_error = 0;
3145 	need_privilege = B_TRUE;
3146 	cmd = iocp->ioc_cmd;
3147 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl: cmd 0x%08x", cmd));
3148 	switch (cmd) {
3149 	default:
3150 		miocnak(wq, mp, 0, EINVAL);
3151 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl: invalid"));
3152 		return;
3153 
3154 	case LB_GET_INFO_SIZE:
3155 	case LB_GET_INFO:
3156 	case LB_GET_MODE:
3157 		need_privilege = B_FALSE;
3158 		break;
3159 	case LB_SET_MODE:
3160 		break;
3161 
3162 	case ND_GET:
3163 		need_privilege = B_FALSE;
3164 		break;
3165 	case ND_SET:
3166 		break;
3167 
3168 	case NXGE_GET_MII:
3169 	case NXGE_PUT_MII:
3170 	case NXGE_GET64:
3171 	case NXGE_PUT64:
3172 	case NXGE_GET_TX_RING_SZ:
3173 	case NXGE_GET_TX_DESC:
3174 	case NXGE_TX_SIDE_RESET:
3175 	case NXGE_RX_SIDE_RESET:
3176 	case NXGE_GLOBAL_RESET:
3177 	case NXGE_RESET_MAC:
3178 	case NXGE_TX_REGS_DUMP:
3179 	case NXGE_RX_REGS_DUMP:
3180 	case NXGE_INT_REGS_DUMP:
3181 	case NXGE_VIR_INT_REGS_DUMP:
3182 	case NXGE_PUT_TCAM:
3183 	case NXGE_GET_TCAM:
3184 	case NXGE_RTRACE:
3185 	case NXGE_RDUMP:
3186 
3187 		need_privilege = B_FALSE;
3188 		break;
3189 	case NXGE_INJECT_ERR:
3190 		cmn_err(CE_NOTE, "!nxge_m_ioctl: Inject error\n");
3191 		nxge_err_inject(nxgep, wq, mp);
3192 		break;
3193 	}
3194 
3195 	if (need_privilege) {
3196 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
3197 		if (err != 0) {
3198 			miocnak(wq, mp, 0, err);
3199 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3200 				"<== nxge_m_ioctl: no priv"));
3201 			return;
3202 		}
3203 	}
3204 
3205 	switch (cmd) {
3206 	case ND_GET:
3207 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "ND_GET command"));
3208 	case ND_SET:
3209 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "ND_SET command"));
3210 		nxge_param_ioctl(nxgep, wq, mp, iocp);
3211 		break;
3212 
3213 	case LB_GET_MODE:
3214 	case LB_SET_MODE:
3215 	case LB_GET_INFO_SIZE:
3216 	case LB_GET_INFO:
3217 		nxge_loopback_ioctl(nxgep, wq, mp, iocp);
3218 		break;
3219 
3220 	case NXGE_GET_MII:
3221 	case NXGE_PUT_MII:
3222 	case NXGE_PUT_TCAM:
3223 	case NXGE_GET_TCAM:
3224 	case NXGE_GET64:
3225 	case NXGE_PUT64:
3226 	case NXGE_GET_TX_RING_SZ:
3227 	case NXGE_GET_TX_DESC:
3228 	case NXGE_TX_SIDE_RESET:
3229 	case NXGE_RX_SIDE_RESET:
3230 	case NXGE_GLOBAL_RESET:
3231 	case NXGE_RESET_MAC:
3232 	case NXGE_TX_REGS_DUMP:
3233 	case NXGE_RX_REGS_DUMP:
3234 	case NXGE_INT_REGS_DUMP:
3235 	case NXGE_VIR_INT_REGS_DUMP:
3236 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
3237 			"==> nxge_m_ioctl: cmd 0x%x", cmd));
3238 		nxge_hw_ioctl(nxgep, wq, mp, iocp);
3239 		break;
3240 	}
3241 
3242 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl"));
3243 }
3244 
3245 extern void nxge_rx_hw_blank(void *arg, time_t ticks, uint_t count);
3246 
3247 static void
3248 nxge_m_resources(void *arg)
3249 {
3250 	p_nxge_t		nxgep = arg;
3251 	mac_rx_fifo_t 		mrf;
3252 	p_rx_rcr_rings_t	rcr_rings;
3253 	p_rx_rcr_ring_t		*rcr_p;
3254 	uint32_t		i, ndmas;
3255 	nxge_status_t		status;
3256 
3257 	NXGE_DEBUG_MSG((nxgep, RX_CTL, "==> nxge_m_resources"));
3258 
3259 	MUTEX_ENTER(nxgep->genlock);
3260 
3261 	/*
3262 	 * CR 6492541 Check to see if the drv_state has been initialized,
3263 	 * if not * call nxge_init().
3264 	 */
3265 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
3266 		status = nxge_init(nxgep);
3267 		if (status != NXGE_OK)
3268 			goto nxge_m_resources_exit;
3269 	}
3270 
3271 	mrf.mrf_type = MAC_RX_FIFO;
3272 	mrf.mrf_blank = nxge_rx_hw_blank;
3273 	mrf.mrf_arg = (void *)nxgep;
3274 
3275 	mrf.mrf_normal_blank_time = 128;
3276 	mrf.mrf_normal_pkt_count = 8;
3277 	rcr_rings = nxgep->rx_rcr_rings;
3278 	rcr_p = rcr_rings->rcr_rings;
3279 	ndmas = rcr_rings->ndmas;
3280 
3281 	/*
3282 	 * Export our receive resources to the MAC layer.
3283 	 */
3284 	for (i = 0; i < ndmas; i++) {
3285 		((p_rx_rcr_ring_t)rcr_p[i])->rcr_mac_handle =
3286 				mac_resource_add(nxgep->mach,
3287 				    (mac_resource_t *)&mrf);
3288 
3289 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
3290 			"==> nxge_m_resources: vdma %d dma %d "
3291 			"rcrptr 0x%016llx mac_handle 0x%016llx",
3292 			i, ((p_rx_rcr_ring_t)rcr_p[i])->rdc,
3293 			rcr_p[i],
3294 			((p_rx_rcr_ring_t)rcr_p[i])->rcr_mac_handle));
3295 	}
3296 
3297 nxge_m_resources_exit:
3298 	MUTEX_EXIT(nxgep->genlock);
3299 	NXGE_DEBUG_MSG((nxgep, RX_CTL, "<== nxge_m_resources"));
3300 }
3301 
3302 static void
3303 nxge_mmac_kstat_update(p_nxge_t nxgep, mac_addr_slot_t slot, boolean_t factory)
3304 {
3305 	p_nxge_mmac_stats_t mmac_stats;
3306 	int i;
3307 	nxge_mmac_t *mmac_info;
3308 
3309 	mmac_info = &nxgep->nxge_mmac_info;
3310 
3311 	mmac_stats = &nxgep->statsp->mmac_stats;
3312 	mmac_stats->mmac_max_cnt = mmac_info->num_mmac;
3313 	mmac_stats->mmac_avail_cnt = mmac_info->naddrfree;
3314 
3315 	for (i = 0; i < ETHERADDRL; i++) {
3316 		if (factory) {
3317 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3318 			= mmac_info->factory_mac_pool[slot][(ETHERADDRL-1) - i];
3319 		} else {
3320 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3321 			= mmac_info->mac_pool[slot].addr[(ETHERADDRL - 1) - i];
3322 		}
3323 	}
3324 }
3325 
3326 /*
3327  * nxge_altmac_set() -- Set an alternate MAC address
3328  */
3329 static int
3330 nxge_altmac_set(p_nxge_t nxgep, uint8_t *maddr, mac_addr_slot_t slot)
3331 {
3332 	uint8_t addrn;
3333 	uint8_t portn;
3334 	npi_mac_addr_t altmac;
3335 	hostinfo_t mac_rdc;
3336 	p_nxge_class_pt_cfg_t clscfgp;
3337 
3338 	altmac.w2 = ((uint16_t)maddr[0] << 8) | ((uint16_t)maddr[1] & 0x0ff);
3339 	altmac.w1 = ((uint16_t)maddr[2] << 8) | ((uint16_t)maddr[3] & 0x0ff);
3340 	altmac.w0 = ((uint16_t)maddr[4] << 8) | ((uint16_t)maddr[5] & 0x0ff);
3341 
3342 	portn = nxgep->mac.portnum;
3343 	addrn = (uint8_t)slot - 1;
3344 
3345 	if (npi_mac_altaddr_entry(nxgep->npi_handle, OP_SET, portn,
3346 		addrn, &altmac) != NPI_SUCCESS)
3347 		return (EIO);
3348 
3349 	/*
3350 	 * Set the rdc table number for the host info entry
3351 	 * for this mac address slot.
3352 	 */
3353 	clscfgp = (p_nxge_class_pt_cfg_t)&nxgep->class_config;
3354 	mac_rdc.value = 0;
3355 	mac_rdc.bits.w0.rdc_tbl_num = clscfgp->mac_host_info[addrn].rdctbl;
3356 	mac_rdc.bits.w0.mac_pref = clscfgp->mac_host_info[addrn].mpr_npr;
3357 
3358 	if (npi_mac_hostinfo_entry(nxgep->npi_handle, OP_SET,
3359 	    nxgep->function_num, addrn, &mac_rdc) != NPI_SUCCESS) {
3360 		return (EIO);
3361 	}
3362 
3363 	/*
3364 	 * Enable comparison with the alternate MAC address.
3365 	 * While the first alternate addr is enabled by bit 1 of register
3366 	 * BMAC_ALTAD_CMPEN, it is enabled by bit 0 of register
3367 	 * XMAC_ADDR_CMPEN, so slot needs to be converted to addrn
3368 	 * accordingly before calling npi_mac_altaddr_entry.
3369 	 */
3370 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
3371 		addrn = (uint8_t)slot - 1;
3372 	else
3373 		addrn = (uint8_t)slot;
3374 
3375 	if (npi_mac_altaddr_enable(nxgep->npi_handle, portn, addrn)
3376 		!= NPI_SUCCESS)
3377 		return (EIO);
3378 
3379 	return (0);
3380 }
3381 
3382 /*
3383  * nxeg_m_mmac_add() - find an unused address slot, set the address
3384  * value to the one specified, enable the port to start filtering on
3385  * the new MAC address.  Returns 0 on success.
3386  */
3387 static int
3388 nxge_m_mmac_add(void *arg, mac_multi_addr_t *maddr)
3389 {
3390 	p_nxge_t nxgep = arg;
3391 	mac_addr_slot_t slot;
3392 	nxge_mmac_t *mmac_info;
3393 	int err;
3394 	nxge_status_t status;
3395 
3396 	mutex_enter(nxgep->genlock);
3397 
3398 	/*
3399 	 * Make sure that nxge is initialized, if _start() has
3400 	 * not been called.
3401 	 */
3402 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
3403 		status = nxge_init(nxgep);
3404 		if (status != NXGE_OK) {
3405 			mutex_exit(nxgep->genlock);
3406 			return (ENXIO);
3407 		}
3408 	}
3409 
3410 	mmac_info = &nxgep->nxge_mmac_info;
3411 	if (mmac_info->naddrfree == 0) {
3412 		mutex_exit(nxgep->genlock);
3413 		return (ENOSPC);
3414 	}
3415 	if (!mac_unicst_verify(nxgep->mach, maddr->mma_addr,
3416 		maddr->mma_addrlen)) {
3417 		mutex_exit(nxgep->genlock);
3418 		return (EINVAL);
3419 	}
3420 	/*
3421 	 * 	Search for the first available slot. Because naddrfree
3422 	 * is not zero, we are guaranteed to find one.
3423 	 * 	Slot 0 is for unique (primary) MAC. The first alternate
3424 	 * MAC slot is slot 1.
3425 	 *	Each of the first two ports of Neptune has 16 alternate
3426 	 * MAC slots but only the first 7 (or 15) slots have assigned factory
3427 	 * MAC addresses. We first search among the slots without bundled
3428 	 * factory MACs. If we fail to find one in that range, then we
3429 	 * search the slots with bundled factory MACs.  A factory MAC
3430 	 * will be wasted while the slot is used with a user MAC address.
3431 	 * But the slot could be used by factory MAC again after calling
3432 	 * nxge_m_mmac_remove and nxge_m_mmac_reserve.
3433 	 */
3434 	if (mmac_info->num_factory_mmac < mmac_info->num_mmac) {
3435 		for (slot = mmac_info->num_factory_mmac + 1;
3436 			slot <= mmac_info->num_mmac; slot++) {
3437 			if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
3438 				break;
3439 		}
3440 		if (slot > mmac_info->num_mmac) {
3441 			for (slot = 1; slot <= mmac_info->num_factory_mmac;
3442 				slot++) {
3443 				if (!(mmac_info->mac_pool[slot].flags
3444 					& MMAC_SLOT_USED))
3445 					break;
3446 			}
3447 		}
3448 	} else {
3449 		for (slot = 1; slot <= mmac_info->num_mmac; slot++) {
3450 			if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
3451 				break;
3452 		}
3453 	}
3454 	ASSERT(slot <= mmac_info->num_mmac);
3455 	if ((err = nxge_altmac_set(nxgep, maddr->mma_addr, slot)) != 0) {
3456 		mutex_exit(nxgep->genlock);
3457 		return (err);
3458 	}
3459 	bcopy(maddr->mma_addr, mmac_info->mac_pool[slot].addr, ETHERADDRL);
3460 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED;
3461 	mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
3462 	mmac_info->naddrfree--;
3463 	nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
3464 
3465 	maddr->mma_slot = slot;
3466 
3467 	mutex_exit(nxgep->genlock);
3468 	return (0);
3469 }
3470 
3471 /*
3472  * This function reserves an unused slot and programs the slot and the HW
3473  * with a factory mac address.
3474  */
3475 static int
3476 nxge_m_mmac_reserve(void *arg, mac_multi_addr_t *maddr)
3477 {
3478 	p_nxge_t nxgep = arg;
3479 	mac_addr_slot_t slot;
3480 	nxge_mmac_t *mmac_info;
3481 	int err;
3482 	nxge_status_t status;
3483 
3484 	mutex_enter(nxgep->genlock);
3485 
3486 	/*
3487 	 * Make sure that nxge is initialized, if _start() has
3488 	 * not been called.
3489 	 */
3490 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
3491 		status = nxge_init(nxgep);
3492 		if (status != NXGE_OK) {
3493 			mutex_exit(nxgep->genlock);
3494 			return (ENXIO);
3495 		}
3496 	}
3497 
3498 	mmac_info = &nxgep->nxge_mmac_info;
3499 	if (mmac_info->naddrfree == 0) {
3500 		mutex_exit(nxgep->genlock);
3501 		return (ENOSPC);
3502 	}
3503 
3504 	slot = maddr->mma_slot;
3505 	if (slot == -1) {  /* -1: Take the first available slot */
3506 		for (slot = 1; slot <= mmac_info->num_factory_mmac; slot++) {
3507 			if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
3508 				break;
3509 		}
3510 		if (slot > mmac_info->num_factory_mmac) {
3511 			mutex_exit(nxgep->genlock);
3512 			return (ENOSPC);
3513 		}
3514 	}
3515 	if (slot < 1 || slot > mmac_info->num_factory_mmac) {
3516 		/*
3517 		 * Do not support factory MAC at a slot greater than
3518 		 * num_factory_mmac even when there are available factory
3519 		 * MAC addresses because the alternate MACs are bundled with
3520 		 * slot[1] through slot[num_factory_mmac]
3521 		 */
3522 		mutex_exit(nxgep->genlock);
3523 		return (EINVAL);
3524 	}
3525 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
3526 		mutex_exit(nxgep->genlock);
3527 		return (EBUSY);
3528 	}
3529 	/* Verify the address to be reserved */
3530 	if (!mac_unicst_verify(nxgep->mach,
3531 		mmac_info->factory_mac_pool[slot], ETHERADDRL)) {
3532 		mutex_exit(nxgep->genlock);
3533 		return (EINVAL);
3534 	}
3535 	if (err = nxge_altmac_set(nxgep,
3536 		mmac_info->factory_mac_pool[slot], slot)) {
3537 		mutex_exit(nxgep->genlock);
3538 		return (err);
3539 	}
3540 	bcopy(mmac_info->factory_mac_pool[slot], maddr->mma_addr, ETHERADDRL);
3541 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED | MMAC_VENDOR_ADDR;
3542 	mmac_info->naddrfree--;
3543 
3544 	nxge_mmac_kstat_update(nxgep, slot, B_TRUE);
3545 	mutex_exit(nxgep->genlock);
3546 
3547 	/* Pass info back to the caller */
3548 	maddr->mma_slot = slot;
3549 	maddr->mma_addrlen = ETHERADDRL;
3550 	maddr->mma_flags = MMAC_SLOT_USED | MMAC_VENDOR_ADDR;
3551 
3552 	return (0);
3553 }
3554 
3555 /*
3556  * Remove the specified mac address and update the HW not to filter
3557  * the mac address anymore.
3558  */
3559 static int
3560 nxge_m_mmac_remove(void *arg, mac_addr_slot_t slot)
3561 {
3562 	p_nxge_t nxgep = arg;
3563 	nxge_mmac_t *mmac_info;
3564 	uint8_t addrn;
3565 	uint8_t portn;
3566 	int err = 0;
3567 	nxge_status_t status;
3568 
3569 	mutex_enter(nxgep->genlock);
3570 
3571 	/*
3572 	 * Make sure that nxge is initialized, if _start() has
3573 	 * not been called.
3574 	 */
3575 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
3576 		status = nxge_init(nxgep);
3577 		if (status != NXGE_OK) {
3578 			mutex_exit(nxgep->genlock);
3579 			return (ENXIO);
3580 		}
3581 	}
3582 
3583 	mmac_info = &nxgep->nxge_mmac_info;
3584 	if (slot < 1 || slot > mmac_info->num_mmac) {
3585 		mutex_exit(nxgep->genlock);
3586 		return (EINVAL);
3587 	}
3588 
3589 	portn = nxgep->mac.portnum;
3590 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
3591 		addrn = (uint8_t)slot - 1;
3592 	else
3593 		addrn = (uint8_t)slot;
3594 
3595 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
3596 		if (npi_mac_altaddr_disable(nxgep->npi_handle, portn, addrn)
3597 				== NPI_SUCCESS) {
3598 			mmac_info->naddrfree++;
3599 			mmac_info->mac_pool[slot].flags &= ~MMAC_SLOT_USED;
3600 			/*
3601 			 * Regardless if the MAC we just stopped filtering
3602 			 * is a user addr or a facory addr, we must set
3603 			 * the MMAC_VENDOR_ADDR flag if this slot has an
3604 			 * associated factory MAC to indicate that a factory
3605 			 * MAC is available.
3606 			 */
3607 			if (slot <= mmac_info->num_factory_mmac) {
3608 				mmac_info->mac_pool[slot].flags
3609 					|= MMAC_VENDOR_ADDR;
3610 			}
3611 			/*
3612 			 * Clear mac_pool[slot].addr so that kstat shows 0
3613 			 * alternate MAC address if the slot is not used.
3614 			 * (But nxge_m_mmac_get returns the factory MAC even
3615 			 * when the slot is not used!)
3616 			 */
3617 			bzero(mmac_info->mac_pool[slot].addr, ETHERADDRL);
3618 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
3619 		} else {
3620 			err = EIO;
3621 		}
3622 	} else {
3623 		err = EINVAL;
3624 	}
3625 
3626 	mutex_exit(nxgep->genlock);
3627 	return (err);
3628 }
3629 
3630 
3631 /*
3632  * Modify a mac address added by nxge_m_mmac_add or nxge_m_mmac_reserve().
3633  */
3634 static int
3635 nxge_m_mmac_modify(void *arg, mac_multi_addr_t *maddr)
3636 {
3637 	p_nxge_t nxgep = arg;
3638 	mac_addr_slot_t slot;
3639 	nxge_mmac_t *mmac_info;
3640 	int err = 0;
3641 	nxge_status_t status;
3642 
3643 	if (!mac_unicst_verify(nxgep->mach, maddr->mma_addr,
3644 			maddr->mma_addrlen))
3645 		return (EINVAL);
3646 
3647 	slot = maddr->mma_slot;
3648 
3649 	mutex_enter(nxgep->genlock);
3650 
3651 	/*
3652 	 * Make sure that nxge is initialized, if _start() has
3653 	 * not been called.
3654 	 */
3655 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
3656 		status = nxge_init(nxgep);
3657 		if (status != NXGE_OK) {
3658 			mutex_exit(nxgep->genlock);
3659 			return (ENXIO);
3660 		}
3661 	}
3662 
3663 	mmac_info = &nxgep->nxge_mmac_info;
3664 	if (slot < 1 || slot > mmac_info->num_mmac) {
3665 		mutex_exit(nxgep->genlock);
3666 		return (EINVAL);
3667 	}
3668 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
3669 		if ((err = nxge_altmac_set(nxgep, maddr->mma_addr, slot))
3670 			!= 0) {
3671 			bcopy(maddr->mma_addr, mmac_info->mac_pool[slot].addr,
3672 				ETHERADDRL);
3673 			/*
3674 			 * Assume that the MAC passed down from the caller
3675 			 * is not a factory MAC address (The user should
3676 			 * call mmac_remove followed by mmac_reserve if
3677 			 * he wants to use the factory MAC for this slot).
3678 			 */
3679 			mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
3680 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
3681 		}
3682 	} else {
3683 		err = EINVAL;
3684 	}
3685 	mutex_exit(nxgep->genlock);
3686 	return (err);
3687 }
3688 
3689 /*
3690  * nxge_m_mmac_get() - Get the MAC address and other information
3691  * related to the slot.  mma_flags should be set to 0 in the call.
3692  * Note: although kstat shows MAC address as zero when a slot is
3693  * not used, Crossbow expects nxge_m_mmac_get to copy factory MAC
3694  * to the caller as long as the slot is not using a user MAC address.
3695  * The following table shows the rules,
3696  *
3697  *				   USED    VENDOR    mma_addr
3698  * ------------------------------------------------------------
3699  * (1) Slot uses a user MAC:        yes      no     user MAC
3700  * (2) Slot uses a factory MAC:     yes      yes    factory MAC
3701  * (3) Slot is not used but is
3702  *     factory MAC capable:         no       yes    factory MAC
3703  * (4) Slot is not used and is
3704  *     not factory MAC capable:     no       no        0
3705  * ------------------------------------------------------------
3706  */
3707 static int
3708 nxge_m_mmac_get(void *arg, mac_multi_addr_t *maddr)
3709 {
3710 	nxge_t *nxgep = arg;
3711 	mac_addr_slot_t slot;
3712 	nxge_mmac_t *mmac_info;
3713 	nxge_status_t status;
3714 
3715 	slot = maddr->mma_slot;
3716 
3717 	mutex_enter(nxgep->genlock);
3718 
3719 	/*
3720 	 * Make sure that nxge is initialized, if _start() has
3721 	 * not been called.
3722 	 */
3723 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
3724 		status = nxge_init(nxgep);
3725 		if (status != NXGE_OK) {
3726 			mutex_exit(nxgep->genlock);
3727 			return (ENXIO);
3728 		}
3729 	}
3730 
3731 	mmac_info = &nxgep->nxge_mmac_info;
3732 
3733 	if (slot < 1 || slot > mmac_info->num_mmac) {
3734 		mutex_exit(nxgep->genlock);
3735 		return (EINVAL);
3736 	}
3737 	maddr->mma_flags = 0;
3738 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED)
3739 		maddr->mma_flags |= MMAC_SLOT_USED;
3740 
3741 	if (mmac_info->mac_pool[slot].flags & MMAC_VENDOR_ADDR) {
3742 		maddr->mma_flags |= MMAC_VENDOR_ADDR;
3743 		bcopy(mmac_info->factory_mac_pool[slot],
3744 			maddr->mma_addr, ETHERADDRL);
3745 		maddr->mma_addrlen = ETHERADDRL;
3746 	} else {
3747 		if (maddr->mma_flags & MMAC_SLOT_USED) {
3748 			bcopy(mmac_info->mac_pool[slot].addr,
3749 				maddr->mma_addr, ETHERADDRL);
3750 			maddr->mma_addrlen = ETHERADDRL;
3751 		} else {
3752 			bzero(maddr->mma_addr, ETHERADDRL);
3753 			maddr->mma_addrlen = 0;
3754 		}
3755 	}
3756 	mutex_exit(nxgep->genlock);
3757 	return (0);
3758 }
3759 
3760 
3761 static boolean_t
3762 nxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
3763 {
3764 	nxge_t *nxgep = arg;
3765 	uint32_t *txflags = cap_data;
3766 	multiaddress_capab_t *mmacp = cap_data;
3767 
3768 	switch (cap) {
3769 	case MAC_CAPAB_HCKSUM:
3770 		*txflags = HCKSUM_INET_PARTIAL;
3771 		break;
3772 	case MAC_CAPAB_POLL:
3773 		/*
3774 		 * There's nothing for us to fill in, simply returning
3775 		 * B_TRUE stating that we support polling is sufficient.
3776 		 */
3777 		break;
3778 
3779 	case MAC_CAPAB_MULTIADDRESS:
3780 		mutex_enter(nxgep->genlock);
3781 
3782 		mmacp->maddr_naddr = nxgep->nxge_mmac_info.num_mmac;
3783 		mmacp->maddr_naddrfree = nxgep->nxge_mmac_info.naddrfree;
3784 		mmacp->maddr_flag = 0; /* 0 is requried by PSARC2006/265 */
3785 		/*
3786 		 * maddr_handle is driver's private data, passed back to
3787 		 * entry point functions as arg.
3788 		 */
3789 		mmacp->maddr_handle	= nxgep;
3790 		mmacp->maddr_add	= nxge_m_mmac_add;
3791 		mmacp->maddr_remove	= nxge_m_mmac_remove;
3792 		mmacp->maddr_modify	= nxge_m_mmac_modify;
3793 		mmacp->maddr_get	= nxge_m_mmac_get;
3794 		mmacp->maddr_reserve	= nxge_m_mmac_reserve;
3795 
3796 		mutex_exit(nxgep->genlock);
3797 		break;
3798 	default:
3799 		return (B_FALSE);
3800 	}
3801 	return (B_TRUE);
3802 }
3803 
3804 /*
3805  * Module loading and removing entry points.
3806  */
3807 
3808 static	struct cb_ops 	nxge_cb_ops = {
3809 	nodev,			/* cb_open */
3810 	nodev,			/* cb_close */
3811 	nodev,			/* cb_strategy */
3812 	nodev,			/* cb_print */
3813 	nodev,			/* cb_dump */
3814 	nodev,			/* cb_read */
3815 	nodev,			/* cb_write */
3816 	nodev,			/* cb_ioctl */
3817 	nodev,			/* cb_devmap */
3818 	nodev,			/* cb_mmap */
3819 	nodev,			/* cb_segmap */
3820 	nochpoll,		/* cb_chpoll */
3821 	ddi_prop_op,		/* cb_prop_op */
3822 	NULL,
3823 	D_MP, 			/* cb_flag */
3824 	CB_REV,			/* rev */
3825 	nodev,			/* int (*cb_aread)() */
3826 	nodev			/* int (*cb_awrite)() */
3827 };
3828 
3829 static struct dev_ops nxge_dev_ops = {
3830 	DEVO_REV,		/* devo_rev */
3831 	0,			/* devo_refcnt */
3832 	nulldev,
3833 	nulldev,		/* devo_identify */
3834 	nulldev,		/* devo_probe */
3835 	nxge_attach,		/* devo_attach */
3836 	nxge_detach,		/* devo_detach */
3837 	nodev,			/* devo_reset */
3838 	&nxge_cb_ops,		/* devo_cb_ops */
3839 	(struct bus_ops *)NULL, /* devo_bus_ops	*/
3840 	ddi_power		/* devo_power */
3841 };
3842 
3843 extern	struct	mod_ops	mod_driverops;
3844 
3845 #define	NXGE_DESC_VER		"Sun NIU 10Gb Ethernet"
3846 
3847 /*
3848  * Module linkage information for the kernel.
3849  */
3850 static struct modldrv 	nxge_modldrv = {
3851 	&mod_driverops,
3852 	NXGE_DESC_VER,
3853 	&nxge_dev_ops
3854 };
3855 
3856 static struct modlinkage modlinkage = {
3857 	MODREV_1, (void *) &nxge_modldrv, NULL
3858 };
3859 
3860 int
3861 _init(void)
3862 {
3863 	int		status;
3864 
3865 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
3866 	mac_init_ops(&nxge_dev_ops, "nxge");
3867 	status = ddi_soft_state_init(&nxge_list, sizeof (nxge_t), 0);
3868 	if (status != 0) {
3869 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL,
3870 			"failed to init device soft state"));
3871 		goto _init_exit;
3872 	}
3873 
3874 	status = mod_install(&modlinkage);
3875 	if (status != 0) {
3876 		ddi_soft_state_fini(&nxge_list);
3877 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL, "Mod install failed"));
3878 		goto _init_exit;
3879 	}
3880 
3881 	MUTEX_INIT(&nxge_common_lock, NULL, MUTEX_DRIVER, NULL);
3882 
3883 _init_exit:
3884 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_init status = 0x%X", status));
3885 
3886 	return (status);
3887 }
3888 
3889 int
3890 _fini(void)
3891 {
3892 	int		status;
3893 
3894 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
3895 
3896 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
3897 
3898 	if (nxge_mblks_pending)
3899 		return (EBUSY);
3900 
3901 	status = mod_remove(&modlinkage);
3902 	if (status != DDI_SUCCESS) {
3903 		NXGE_DEBUG_MSG((NULL, MOD_CTL,
3904 			    "Module removal failed 0x%08x",
3905 			    status));
3906 		goto _fini_exit;
3907 	}
3908 
3909 	mac_fini_ops(&nxge_dev_ops);
3910 
3911 	ddi_soft_state_fini(&nxge_list);
3912 
3913 	MUTEX_DESTROY(&nxge_common_lock);
3914 _fini_exit:
3915 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_fini status = 0x%08x", status));
3916 
3917 	return (status);
3918 }
3919 
3920 int
3921 _info(struct modinfo *modinfop)
3922 {
3923 	int		status;
3924 
3925 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
3926 	status = mod_info(&modlinkage, modinfop);
3927 	NXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
3928 
3929 	return (status);
3930 }
3931 
3932 /*ARGSUSED*/
3933 static nxge_status_t
3934 nxge_add_intrs(p_nxge_t nxgep)
3935 {
3936 
3937 	int		intr_types;
3938 	int		type = 0;
3939 	int		ddi_status = DDI_SUCCESS;
3940 	nxge_status_t	status = NXGE_OK;
3941 
3942 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs"));
3943 
3944 	nxgep->nxge_intr_type.intr_registered = B_FALSE;
3945 	nxgep->nxge_intr_type.intr_enabled = B_FALSE;
3946 	nxgep->nxge_intr_type.msi_intx_cnt = 0;
3947 	nxgep->nxge_intr_type.intr_added = 0;
3948 	nxgep->nxge_intr_type.niu_msi_enable = B_FALSE;
3949 	nxgep->nxge_intr_type.intr_type = 0;
3950 
3951 	if (nxgep->niu_type == N2_NIU) {
3952 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
3953 	} else if (nxge_msi_enable) {
3954 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
3955 	}
3956 
3957 	/* Get the supported interrupt types */
3958 	if ((ddi_status = ddi_intr_get_supported_types(nxgep->dip, &intr_types))
3959 			!= DDI_SUCCESS) {
3960 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_intrs: "
3961 			"ddi_intr_get_supported_types failed: status 0x%08x",
3962 			ddi_status));
3963 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3964 	}
3965 	nxgep->nxge_intr_type.intr_types = intr_types;
3966 
3967 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
3968 		"ddi_intr_get_supported_types: 0x%08x", intr_types));
3969 
3970 	/*
3971 	 * Solaris MSIX is not supported yet. use MSI for now.
3972 	 * nxge_msi_enable (1):
3973 	 *	1 - MSI		2 - MSI-X	others - FIXED
3974 	 */
3975 	switch (nxge_msi_enable) {
3976 	default:
3977 		type = DDI_INTR_TYPE_FIXED;
3978 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
3979 			"use fixed (intx emulation) type %08x",
3980 			type));
3981 		break;
3982 
3983 	case 2:
3984 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
3985 			"ddi_intr_get_supported_types: 0x%08x", intr_types));
3986 		if (intr_types & DDI_INTR_TYPE_MSIX) {
3987 			type = DDI_INTR_TYPE_MSIX;
3988 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
3989 				"ddi_intr_get_supported_types: MSIX 0x%08x",
3990 				type));
3991 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
3992 			type = DDI_INTR_TYPE_MSI;
3993 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
3994 				"ddi_intr_get_supported_types: MSI 0x%08x",
3995 				type));
3996 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
3997 			type = DDI_INTR_TYPE_FIXED;
3998 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
3999 				"ddi_intr_get_supported_types: MSXED0x%08x",
4000 				type));
4001 		}
4002 		break;
4003 
4004 	case 1:
4005 		if (intr_types & DDI_INTR_TYPE_MSI) {
4006 			type = DDI_INTR_TYPE_MSI;
4007 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
4008 				"ddi_intr_get_supported_types: MSI 0x%08x",
4009 				type));
4010 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
4011 			type = DDI_INTR_TYPE_MSIX;
4012 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
4013 				"ddi_intr_get_supported_types: MSIX 0x%08x",
4014 				type));
4015 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
4016 			type = DDI_INTR_TYPE_FIXED;
4017 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
4018 				"ddi_intr_get_supported_types: MSXED0x%08x",
4019 				type));
4020 		}
4021 	}
4022 
4023 	nxgep->nxge_intr_type.intr_type = type;
4024 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
4025 		type == DDI_INTR_TYPE_FIXED) &&
4026 			nxgep->nxge_intr_type.niu_msi_enable) {
4027 		if ((status = nxge_add_intrs_adv(nxgep)) != DDI_SUCCESS) {
4028 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4029 				    " nxge_add_intrs: "
4030 				    " nxge_add_intrs_adv failed: status 0x%08x",
4031 				    status));
4032 			return (status);
4033 		} else {
4034 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
4035 			"interrupts registered : type %d", type));
4036 			nxgep->nxge_intr_type.intr_registered = B_TRUE;
4037 
4038 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
4039 				"\nAdded advanced nxge add_intr_adv "
4040 					"intr type 0x%x\n", type));
4041 
4042 			return (status);
4043 		}
4044 	}
4045 
4046 	if (!nxgep->nxge_intr_type.intr_registered) {
4047 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_add_intrs: "
4048 			"failed to register interrupts"));
4049 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4050 	}
4051 
4052 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_add_intrs"));
4053 	return (status);
4054 }
4055 
4056 /*ARGSUSED*/
4057 static nxge_status_t
4058 nxge_add_soft_intrs(p_nxge_t nxgep)
4059 {
4060 
4061 	int		ddi_status = DDI_SUCCESS;
4062 	nxge_status_t	status = NXGE_OK;
4063 
4064 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_soft_intrs"));
4065 
4066 	nxgep->resched_id = NULL;
4067 	nxgep->resched_running = B_FALSE;
4068 	ddi_status = ddi_add_softintr(nxgep->dip, DDI_SOFTINT_LOW,
4069 			&nxgep->resched_id,
4070 		NULL, NULL, nxge_reschedule, (caddr_t)nxgep);
4071 	if (ddi_status != DDI_SUCCESS) {
4072 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_soft_intrs: "
4073 			"ddi_add_softintrs failed: status 0x%08x",
4074 			ddi_status));
4075 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4076 	}
4077 
4078 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_ddi_add_soft_intrs"));
4079 
4080 	return (status);
4081 }
4082 
4083 static nxge_status_t
4084 nxge_add_intrs_adv(p_nxge_t nxgep)
4085 {
4086 	int		intr_type;
4087 	p_nxge_intr_t	intrp;
4088 
4089 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv"));
4090 
4091 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
4092 	intr_type = intrp->intr_type;
4093 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv: type 0x%x",
4094 		intr_type));
4095 
4096 	switch (intr_type) {
4097 	case DDI_INTR_TYPE_MSI: /* 0x2 */
4098 	case DDI_INTR_TYPE_MSIX: /* 0x4 */
4099 		return (nxge_add_intrs_adv_type(nxgep, intr_type));
4100 
4101 	case DDI_INTR_TYPE_FIXED: /* 0x1 */
4102 		return (nxge_add_intrs_adv_type_fix(nxgep, intr_type));
4103 
4104 	default:
4105 		return (NXGE_ERROR);
4106 	}
4107 }
4108 
4109 
4110 /*ARGSUSED*/
4111 static nxge_status_t
4112 nxge_add_intrs_adv_type(p_nxge_t nxgep, uint32_t int_type)
4113 {
4114 	dev_info_t		*dip = nxgep->dip;
4115 	p_nxge_ldg_t		ldgp;
4116 	p_nxge_intr_t		intrp;
4117 	uint_t			*inthandler;
4118 	void			*arg1, *arg2;
4119 	int			behavior;
4120 	int			nintrs, navail, nrequest;
4121 	int			nactual, nrequired;
4122 	int			inum = 0;
4123 	int			x, y;
4124 	int			ddi_status = DDI_SUCCESS;
4125 	nxge_status_t		status = NXGE_OK;
4126 
4127 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type"));
4128 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
4129 	intrp->start_inum = 0;
4130 
4131 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
4132 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
4133 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4134 			"ddi_intr_get_nintrs() failed, status: 0x%x%, "
4135 			    "nintrs: %d", ddi_status, nintrs));
4136 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4137 	}
4138 
4139 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
4140 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
4141 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4142 			"ddi_intr_get_navail() failed, status: 0x%x%, "
4143 			    "nintrs: %d", ddi_status, navail));
4144 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4145 	}
4146 
4147 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
4148 		"ddi_intr_get_navail() returned: nintrs %d, navail %d",
4149 		    nintrs, navail));
4150 
4151 	/* PSARC/2007/453 MSI-X interrupt limit override */
4152 	if (int_type == DDI_INTR_TYPE_MSIX) {
4153 		nrequest = nxge_create_msi_property(nxgep);
4154 		if (nrequest < navail) {
4155 			navail = nrequest;
4156 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
4157 			    "nxge_add_intrs_adv_type: nintrs %d "
4158 			    "navail %d (nrequest %d)",
4159 			    nintrs, navail, nrequest));
4160 		}
4161 	}
4162 
4163 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
4164 		/* MSI must be power of 2 */
4165 		if ((navail & 16) == 16) {
4166 			navail = 16;
4167 		} else if ((navail & 8) == 8) {
4168 			navail = 8;
4169 		} else if ((navail & 4) == 4) {
4170 			navail = 4;
4171 		} else if ((navail & 2) == 2) {
4172 			navail = 2;
4173 		} else {
4174 			navail = 1;
4175 		}
4176 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
4177 			"ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
4178 			"navail %d", nintrs, navail));
4179 	}
4180 
4181 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
4182 			DDI_INTR_ALLOC_NORMAL);
4183 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
4184 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
4185 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
4186 		    navail, &nactual, behavior);
4187 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
4188 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4189 				    " ddi_intr_alloc() failed: %d",
4190 				    ddi_status));
4191 		kmem_free(intrp->htable, intrp->intr_size);
4192 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4193 	}
4194 
4195 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
4196 			(uint_t *)&intrp->pri)) != DDI_SUCCESS) {
4197 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4198 				    " ddi_intr_get_pri() failed: %d",
4199 				    ddi_status));
4200 		/* Free already allocated interrupts */
4201 		for (y = 0; y < nactual; y++) {
4202 			(void) ddi_intr_free(intrp->htable[y]);
4203 		}
4204 
4205 		kmem_free(intrp->htable, intrp->intr_size);
4206 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4207 	}
4208 
4209 	nrequired = 0;
4210 	switch (nxgep->niu_type) {
4211 	default:
4212 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
4213 		break;
4214 
4215 	case N2_NIU:
4216 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
4217 		break;
4218 	}
4219 
4220 	if (status != NXGE_OK) {
4221 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4222 			"nxge_add_intrs_adv_typ:nxge_ldgv_init "
4223 			"failed: 0x%x", status));
4224 		/* Free already allocated interrupts */
4225 		for (y = 0; y < nactual; y++) {
4226 			(void) ddi_intr_free(intrp->htable[y]);
4227 		}
4228 
4229 		kmem_free(intrp->htable, intrp->intr_size);
4230 		return (status);
4231 	}
4232 
4233 	ldgp = nxgep->ldgvp->ldgp;
4234 	for (x = 0; x < nrequired; x++, ldgp++) {
4235 		ldgp->vector = (uint8_t)x;
4236 		ldgp->intdata = SID_DATA(ldgp->func, x);
4237 		arg1 = ldgp->ldvp;
4238 		arg2 = nxgep;
4239 		if (ldgp->nldvs == 1) {
4240 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
4241 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
4242 				"nxge_add_intrs_adv_type: "
4243 				"arg1 0x%x arg2 0x%x: "
4244 				"1-1 int handler (entry %d intdata 0x%x)\n",
4245 				arg1, arg2,
4246 				x, ldgp->intdata));
4247 		} else if (ldgp->nldvs > 1) {
4248 			inthandler = (uint_t *)ldgp->sys_intr_handler;
4249 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
4250 				"nxge_add_intrs_adv_type: "
4251 				"arg1 0x%x arg2 0x%x: "
4252 				"nldevs %d int handler "
4253 				"(entry %d intdata 0x%x)\n",
4254 				arg1, arg2,
4255 				ldgp->nldvs, x, ldgp->intdata));
4256 		}
4257 
4258 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
4259 			"==> nxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
4260 			"htable 0x%llx", x, intrp->htable[x]));
4261 
4262 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
4263 			(ddi_intr_handler_t *)inthandler, arg1, arg2))
4264 				!= DDI_SUCCESS) {
4265 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4266 				"==> nxge_add_intrs_adv_type: failed #%d "
4267 				"status 0x%x", x, ddi_status));
4268 			for (y = 0; y < intrp->intr_added; y++) {
4269 				(void) ddi_intr_remove_handler(
4270 						intrp->htable[y]);
4271 			}
4272 			/* Free already allocated intr */
4273 			for (y = 0; y < nactual; y++) {
4274 				(void) ddi_intr_free(intrp->htable[y]);
4275 			}
4276 			kmem_free(intrp->htable, intrp->intr_size);
4277 
4278 			(void) nxge_ldgv_uninit(nxgep);
4279 
4280 			return (NXGE_ERROR | NXGE_DDI_FAILED);
4281 		}
4282 		intrp->intr_added++;
4283 	}
4284 
4285 	intrp->msi_intx_cnt = nactual;
4286 
4287 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
4288 		"Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
4289 		navail, nactual,
4290 		intrp->msi_intx_cnt,
4291 		intrp->intr_added));
4292 
4293 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
4294 
4295 	(void) nxge_intr_ldgv_init(nxgep);
4296 
4297 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type"));
4298 
4299 	return (status);
4300 }
4301 
4302 /*ARGSUSED*/
4303 static nxge_status_t
4304 nxge_add_intrs_adv_type_fix(p_nxge_t nxgep, uint32_t int_type)
4305 {
4306 	dev_info_t		*dip = nxgep->dip;
4307 	p_nxge_ldg_t		ldgp;
4308 	p_nxge_intr_t		intrp;
4309 	uint_t			*inthandler;
4310 	void			*arg1, *arg2;
4311 	int			behavior;
4312 	int			nintrs, navail;
4313 	int			nactual, nrequired;
4314 	int			inum = 0;
4315 	int			x, y;
4316 	int			ddi_status = DDI_SUCCESS;
4317 	nxge_status_t		status = NXGE_OK;
4318 
4319 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type_fix"));
4320 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
4321 	intrp->start_inum = 0;
4322 
4323 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
4324 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
4325 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
4326 			"ddi_intr_get_nintrs() failed, status: 0x%x%, "
4327 			    "nintrs: %d", status, nintrs));
4328 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4329 	}
4330 
4331 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
4332 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
4333 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4334 			"ddi_intr_get_navail() failed, status: 0x%x%, "
4335 			    "nintrs: %d", ddi_status, navail));
4336 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4337 	}
4338 
4339 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
4340 		"ddi_intr_get_navail() returned: nintrs %d, naavail %d",
4341 		    nintrs, navail));
4342 
4343 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
4344 			DDI_INTR_ALLOC_NORMAL);
4345 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
4346 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
4347 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
4348 		    navail, &nactual, behavior);
4349 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
4350 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4351 			    " ddi_intr_alloc() failed: %d",
4352 			    ddi_status));
4353 		kmem_free(intrp->htable, intrp->intr_size);
4354 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4355 	}
4356 
4357 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
4358 			(uint_t *)&intrp->pri)) != DDI_SUCCESS) {
4359 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4360 				    " ddi_intr_get_pri() failed: %d",
4361 				    ddi_status));
4362 		/* Free already allocated interrupts */
4363 		for (y = 0; y < nactual; y++) {
4364 			(void) ddi_intr_free(intrp->htable[y]);
4365 		}
4366 
4367 		kmem_free(intrp->htable, intrp->intr_size);
4368 		return (NXGE_ERROR | NXGE_DDI_FAILED);
4369 	}
4370 
4371 	nrequired = 0;
4372 	switch (nxgep->niu_type) {
4373 	default:
4374 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
4375 		break;
4376 
4377 	case N2_NIU:
4378 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
4379 		break;
4380 	}
4381 
4382 	if (status != NXGE_OK) {
4383 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4384 			"nxge_add_intrs_adv_type_fix:nxge_ldgv_init "
4385 			"failed: 0x%x", status));
4386 		/* Free already allocated interrupts */
4387 		for (y = 0; y < nactual; y++) {
4388 			(void) ddi_intr_free(intrp->htable[y]);
4389 		}
4390 
4391 		kmem_free(intrp->htable, intrp->intr_size);
4392 		return (status);
4393 	}
4394 
4395 	ldgp = nxgep->ldgvp->ldgp;
4396 	for (x = 0; x < nrequired; x++, ldgp++) {
4397 		ldgp->vector = (uint8_t)x;
4398 		if (nxgep->niu_type != N2_NIU) {
4399 			ldgp->intdata = SID_DATA(ldgp->func, x);
4400 		}
4401 
4402 		arg1 = ldgp->ldvp;
4403 		arg2 = nxgep;
4404 		if (ldgp->nldvs == 1) {
4405 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
4406 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
4407 				"nxge_add_intrs_adv_type_fix: "
4408 				"1-1 int handler(%d) ldg %d ldv %d "
4409 				"arg1 $%p arg2 $%p\n",
4410 				x, ldgp->ldg, ldgp->ldvp->ldv,
4411 				arg1, arg2));
4412 		} else if (ldgp->nldvs > 1) {
4413 			inthandler = (uint_t *)ldgp->sys_intr_handler;
4414 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
4415 				"nxge_add_intrs_adv_type_fix: "
4416 				"shared ldv %d int handler(%d) ldv %d ldg %d"
4417 				"arg1 0x%016llx arg2 0x%016llx\n",
4418 				x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
4419 				arg1, arg2));
4420 		}
4421 
4422 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
4423 			(ddi_intr_handler_t *)inthandler, arg1, arg2))
4424 				!= DDI_SUCCESS) {
4425 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4426 				"==> nxge_add_intrs_adv_type_fix: failed #%d "
4427 				"status 0x%x", x, ddi_status));
4428 			for (y = 0; y < intrp->intr_added; y++) {
4429 				(void) ddi_intr_remove_handler(
4430 						intrp->htable[y]);
4431 			}
4432 			for (y = 0; y < nactual; y++) {
4433 				(void) ddi_intr_free(intrp->htable[y]);
4434 			}
4435 			/* Free already allocated intr */
4436 			kmem_free(intrp->htable, intrp->intr_size);
4437 
4438 			(void) nxge_ldgv_uninit(nxgep);
4439 
4440 			return (NXGE_ERROR | NXGE_DDI_FAILED);
4441 		}
4442 		intrp->intr_added++;
4443 	}
4444 
4445 	intrp->msi_intx_cnt = nactual;
4446 
4447 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
4448 
4449 	status = nxge_intr_ldgv_init(nxgep);
4450 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type_fix"));
4451 
4452 	return (status);
4453 }
4454 
4455 static void
4456 nxge_remove_intrs(p_nxge_t nxgep)
4457 {
4458 	int		i, inum;
4459 	p_nxge_intr_t	intrp;
4460 
4461 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs"));
4462 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
4463 	if (!intrp->intr_registered) {
4464 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
4465 			"<== nxge_remove_intrs: interrupts not registered"));
4466 		return;
4467 	}
4468 
4469 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs:advanced"));
4470 
4471 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
4472 		(void) ddi_intr_block_disable(intrp->htable,
4473 			intrp->intr_added);
4474 	} else {
4475 		for (i = 0; i < intrp->intr_added; i++) {
4476 			(void) ddi_intr_disable(intrp->htable[i]);
4477 		}
4478 	}
4479 
4480 	for (inum = 0; inum < intrp->intr_added; inum++) {
4481 		if (intrp->htable[inum]) {
4482 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
4483 		}
4484 	}
4485 
4486 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
4487 		if (intrp->htable[inum]) {
4488 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
4489 				"nxge_remove_intrs: ddi_intr_free inum %d "
4490 				"msi_intx_cnt %d intr_added %d",
4491 				inum,
4492 				intrp->msi_intx_cnt,
4493 				intrp->intr_added));
4494 
4495 			(void) ddi_intr_free(intrp->htable[inum]);
4496 		}
4497 	}
4498 
4499 	kmem_free(intrp->htable, intrp->intr_size);
4500 	intrp->intr_registered = B_FALSE;
4501 	intrp->intr_enabled = B_FALSE;
4502 	intrp->msi_intx_cnt = 0;
4503 	intrp->intr_added = 0;
4504 
4505 	(void) nxge_ldgv_uninit(nxgep);
4506 
4507 	(void) ddi_prop_remove(DDI_DEV_T_NONE, nxgep->dip,
4508 	    "#msix-request");
4509 
4510 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_intrs"));
4511 }
4512 
4513 /*ARGSUSED*/
4514 static void
4515 nxge_remove_soft_intrs(p_nxge_t nxgep)
4516 {
4517 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_soft_intrs"));
4518 	if (nxgep->resched_id) {
4519 		ddi_remove_softintr(nxgep->resched_id);
4520 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
4521 			"==> nxge_remove_soft_intrs: removed"));
4522 		nxgep->resched_id = NULL;
4523 	}
4524 
4525 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_soft_intrs"));
4526 }
4527 
4528 /*ARGSUSED*/
4529 static void
4530 nxge_intrs_enable(p_nxge_t nxgep)
4531 {
4532 	p_nxge_intr_t	intrp;
4533 	int		i;
4534 	int		status;
4535 
4536 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable"));
4537 
4538 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
4539 
4540 	if (!intrp->intr_registered) {
4541 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_intrs_enable: "
4542 			"interrupts are not registered"));
4543 		return;
4544 	}
4545 
4546 	if (intrp->intr_enabled) {
4547 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
4548 			"<== nxge_intrs_enable: already enabled"));
4549 		return;
4550 	}
4551 
4552 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
4553 		status = ddi_intr_block_enable(intrp->htable,
4554 			intrp->intr_added);
4555 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
4556 			"block enable - status 0x%x total inums #%d\n",
4557 			status, intrp->intr_added));
4558 	} else {
4559 		for (i = 0; i < intrp->intr_added; i++) {
4560 			status = ddi_intr_enable(intrp->htable[i]);
4561 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
4562 				"ddi_intr_enable:enable - status 0x%x "
4563 				"total inums %d enable inum #%d\n",
4564 				status, intrp->intr_added, i));
4565 			if (status == DDI_SUCCESS) {
4566 				intrp->intr_enabled = B_TRUE;
4567 			}
4568 		}
4569 	}
4570 
4571 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_enable"));
4572 }
4573 
4574 /*ARGSUSED*/
4575 static void
4576 nxge_intrs_disable(p_nxge_t nxgep)
4577 {
4578 	p_nxge_intr_t	intrp;
4579 	int		i;
4580 
4581 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_disable"));
4582 
4583 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
4584 
4585 	if (!intrp->intr_registered) {
4586 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable: "
4587 			"interrupts are not registered"));
4588 		return;
4589 	}
4590 
4591 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
4592 		(void) ddi_intr_block_disable(intrp->htable,
4593 			intrp->intr_added);
4594 	} else {
4595 		for (i = 0; i < intrp->intr_added; i++) {
4596 			(void) ddi_intr_disable(intrp->htable[i]);
4597 		}
4598 	}
4599 
4600 	intrp->intr_enabled = B_FALSE;
4601 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable"));
4602 }
4603 
4604 static nxge_status_t
4605 nxge_mac_register(p_nxge_t nxgep)
4606 {
4607 	mac_register_t *macp;
4608 	int		status;
4609 
4610 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_mac_register"));
4611 
4612 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
4613 		return (NXGE_ERROR);
4614 
4615 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
4616 	macp->m_driver = nxgep;
4617 	macp->m_dip = nxgep->dip;
4618 	macp->m_src_addr = nxgep->ouraddr.ether_addr_octet;
4619 	macp->m_callbacks = &nxge_m_callbacks;
4620 	macp->m_min_sdu = 0;
4621 	macp->m_max_sdu = nxgep->mac.maxframesize -
4622 		sizeof (struct ether_header) - ETHERFCSL - 4;
4623 
4624 	status = mac_register(macp, &nxgep->mach);
4625 	mac_free(macp);
4626 
4627 	if (status != 0) {
4628 		cmn_err(CE_WARN,
4629 			"!nxge_mac_register failed (status %d instance %d)",
4630 			status, nxgep->instance);
4631 		return (NXGE_ERROR);
4632 	}
4633 
4634 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_mac_register success "
4635 		"(instance %d)", nxgep->instance));
4636 
4637 	return (NXGE_OK);
4638 }
4639 
4640 void
4641 nxge_err_inject(p_nxge_t nxgep, queue_t *wq, mblk_t *mp)
4642 {
4643 	ssize_t		size;
4644 	mblk_t		*nmp;
4645 	uint8_t		blk_id;
4646 	uint8_t		chan;
4647 	uint32_t	err_id;
4648 	err_inject_t	*eip;
4649 
4650 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_err_inject"));
4651 
4652 	size = 1024;
4653 	nmp = mp->b_cont;
4654 	eip = (err_inject_t *)nmp->b_rptr;
4655 	blk_id = eip->blk_id;
4656 	err_id = eip->err_id;
4657 	chan = eip->chan;
4658 	cmn_err(CE_NOTE, "!blk_id = 0x%x\n", blk_id);
4659 	cmn_err(CE_NOTE, "!err_id = 0x%x\n", err_id);
4660 	cmn_err(CE_NOTE, "!chan = 0x%x\n", chan);
4661 	switch (blk_id) {
4662 	case MAC_BLK_ID:
4663 		break;
4664 	case TXMAC_BLK_ID:
4665 		break;
4666 	case RXMAC_BLK_ID:
4667 		break;
4668 	case MIF_BLK_ID:
4669 		break;
4670 	case IPP_BLK_ID:
4671 		nxge_ipp_inject_err(nxgep, err_id);
4672 		break;
4673 	case TXC_BLK_ID:
4674 		nxge_txc_inject_err(nxgep, err_id);
4675 		break;
4676 	case TXDMA_BLK_ID:
4677 		nxge_txdma_inject_err(nxgep, err_id, chan);
4678 		break;
4679 	case RXDMA_BLK_ID:
4680 		nxge_rxdma_inject_err(nxgep, err_id, chan);
4681 		break;
4682 	case ZCP_BLK_ID:
4683 		nxge_zcp_inject_err(nxgep, err_id);
4684 		break;
4685 	case ESPC_BLK_ID:
4686 		break;
4687 	case FFLP_BLK_ID:
4688 		break;
4689 	case PHY_BLK_ID:
4690 		break;
4691 	case ETHER_SERDES_BLK_ID:
4692 		break;
4693 	case PCIE_SERDES_BLK_ID:
4694 		break;
4695 	case VIR_BLK_ID:
4696 		break;
4697 	}
4698 
4699 	nmp->b_wptr = nmp->b_rptr + size;
4700 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "<== nxge_err_inject"));
4701 
4702 	miocack(wq, mp, (int)size, 0);
4703 }
4704 
4705 static int
4706 nxge_init_common_dev(p_nxge_t nxgep)
4707 {
4708 	p_nxge_hw_list_t	hw_p;
4709 	dev_info_t 		*p_dip;
4710 
4711 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_init_common_device"));
4712 
4713 	p_dip = nxgep->p_dip;
4714 	MUTEX_ENTER(&nxge_common_lock);
4715 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4716 		"==> nxge_init_common_dev:func # %d",
4717 			nxgep->function_num));
4718 	/*
4719 	 * Loop through existing per neptune hardware list.
4720 	 */
4721 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
4722 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4723 			"==> nxge_init_common_device:func # %d "
4724 			"hw_p $%p parent dip $%p",
4725 			nxgep->function_num,
4726 			hw_p,
4727 			p_dip));
4728 		if (hw_p->parent_devp == p_dip) {
4729 			nxgep->nxge_hw_p = hw_p;
4730 			hw_p->ndevs++;
4731 			hw_p->nxge_p[nxgep->function_num] = nxgep;
4732 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4733 				"==> nxge_init_common_device:func # %d "
4734 				"hw_p $%p parent dip $%p "
4735 				"ndevs %d (found)",
4736 				nxgep->function_num,
4737 				hw_p,
4738 				p_dip,
4739 				hw_p->ndevs));
4740 			break;
4741 		}
4742 	}
4743 
4744 	if (hw_p == NULL) {
4745 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4746 			"==> nxge_init_common_device:func # %d "
4747 			"parent dip $%p (new)",
4748 			nxgep->function_num,
4749 			p_dip));
4750 		hw_p = kmem_zalloc(sizeof (nxge_hw_list_t), KM_SLEEP);
4751 		hw_p->parent_devp = p_dip;
4752 		hw_p->magic = NXGE_NEPTUNE_MAGIC;
4753 		nxgep->nxge_hw_p = hw_p;
4754 		hw_p->ndevs++;
4755 		hw_p->nxge_p[nxgep->function_num] = nxgep;
4756 		hw_p->next = nxge_hw_list;
4757 		if (nxgep->niu_type == N2_NIU) {
4758 			hw_p->niu_type = N2_NIU;
4759 			hw_p->platform_type = P_NEPTUNE_NIU;
4760 		} else {
4761 			hw_p->niu_type = NIU_TYPE_NONE;
4762 			hw_p->platform_type = P_NEPTUNE_NONE;
4763 		}
4764 
4765 		MUTEX_INIT(&hw_p->nxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
4766 		MUTEX_INIT(&hw_p->nxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
4767 		MUTEX_INIT(&hw_p->nxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
4768 		MUTEX_INIT(&hw_p->nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
4769 		MUTEX_INIT(&hw_p->nxge_mii_lock, NULL, MUTEX_DRIVER, NULL);
4770 
4771 		nxge_hw_list = hw_p;
4772 
4773 		(void) nxge_scan_ports_phy(nxgep, nxge_hw_list);
4774 	}
4775 
4776 	MUTEX_EXIT(&nxge_common_lock);
4777 
4778 	nxgep->platform_type = hw_p->platform_type;
4779 	if (nxgep->niu_type != N2_NIU) {
4780 		nxgep->niu_type = hw_p->niu_type;
4781 	}
4782 
4783 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4784 		"==> nxge_init_common_device (nxge_hw_list) $%p",
4785 		nxge_hw_list));
4786 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<== nxge_init_common_device"));
4787 
4788 	return (NXGE_OK);
4789 }
4790 
4791 static void
4792 nxge_uninit_common_dev(p_nxge_t nxgep)
4793 {
4794 	p_nxge_hw_list_t	hw_p, h_hw_p;
4795 	dev_info_t 		*p_dip;
4796 
4797 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_uninit_common_device"));
4798 	if (nxgep->nxge_hw_p == NULL) {
4799 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4800 			"<== nxge_uninit_common_device (no common)"));
4801 		return;
4802 	}
4803 
4804 	MUTEX_ENTER(&nxge_common_lock);
4805 	h_hw_p = nxge_hw_list;
4806 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
4807 		p_dip = hw_p->parent_devp;
4808 		if (nxgep->nxge_hw_p == hw_p &&
4809 			p_dip == nxgep->p_dip &&
4810 			nxgep->nxge_hw_p->magic == NXGE_NEPTUNE_MAGIC &&
4811 			hw_p->magic == NXGE_NEPTUNE_MAGIC) {
4812 
4813 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4814 				"==> nxge_uninit_common_device:func # %d "
4815 				"hw_p $%p parent dip $%p "
4816 				"ndevs %d (found)",
4817 				nxgep->function_num,
4818 				hw_p,
4819 				p_dip,
4820 				hw_p->ndevs));
4821 
4822 			nxgep->nxge_hw_p = NULL;
4823 			if (hw_p->ndevs) {
4824 				hw_p->ndevs--;
4825 			}
4826 			hw_p->nxge_p[nxgep->function_num] = NULL;
4827 			if (!hw_p->ndevs) {
4828 				MUTEX_DESTROY(&hw_p->nxge_vlan_lock);
4829 				MUTEX_DESTROY(&hw_p->nxge_tcam_lock);
4830 				MUTEX_DESTROY(&hw_p->nxge_cfg_lock);
4831 				MUTEX_DESTROY(&hw_p->nxge_mdio_lock);
4832 				MUTEX_DESTROY(&hw_p->nxge_mii_lock);
4833 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4834 					"==> nxge_uninit_common_device: "
4835 					"func # %d "
4836 					"hw_p $%p parent dip $%p "
4837 					"ndevs %d (last)",
4838 					nxgep->function_num,
4839 					hw_p,
4840 					p_dip,
4841 					hw_p->ndevs));
4842 
4843 				if (hw_p == nxge_hw_list) {
4844 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4845 						"==> nxge_uninit_common_device:"
4846 						"remove head func # %d "
4847 						"hw_p $%p parent dip $%p "
4848 						"ndevs %d (head)",
4849 						nxgep->function_num,
4850 						hw_p,
4851 						p_dip,
4852 						hw_p->ndevs));
4853 					nxge_hw_list = hw_p->next;
4854 				} else {
4855 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4856 						"==> nxge_uninit_common_device:"
4857 						"remove middle func # %d "
4858 						"hw_p $%p parent dip $%p "
4859 						"ndevs %d (middle)",
4860 						nxgep->function_num,
4861 						hw_p,
4862 						p_dip,
4863 						hw_p->ndevs));
4864 					h_hw_p->next = hw_p->next;
4865 				}
4866 
4867 				KMEM_FREE(hw_p, sizeof (nxge_hw_list_t));
4868 			}
4869 			break;
4870 		} else {
4871 			h_hw_p = hw_p;
4872 		}
4873 	}
4874 
4875 	MUTEX_EXIT(&nxge_common_lock);
4876 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4877 		"==> nxge_uninit_common_device (nxge_hw_list) $%p",
4878 		nxge_hw_list));
4879 
4880 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<= nxge_uninit_common_device"));
4881 }
4882 
4883 /*
4884  * Determines the number of ports from the niu_type or the platform type.
4885  * Returns the number of ports, or returns zero on failure.
4886  */
4887 
4888 int
4889 nxge_get_nports(p_nxge_t nxgep)
4890 {
4891 	int	nports = 0;
4892 
4893 	switch (nxgep->niu_type) {
4894 	case N2_NIU:
4895 	case NEPTUNE_2_10GF:
4896 		nports = 2;
4897 		break;
4898 	case NEPTUNE_4_1GC:
4899 	case NEPTUNE_2_10GF_2_1GC:
4900 	case NEPTUNE_1_10GF_3_1GC:
4901 	case NEPTUNE_1_1GC_1_10GF_2_1GC:
4902 		nports = 4;
4903 		break;
4904 	default:
4905 		switch (nxgep->platform_type) {
4906 		case P_NEPTUNE_NIU:
4907 		case P_NEPTUNE_ATLAS_2PORT:
4908 			nports = 2;
4909 			break;
4910 		case P_NEPTUNE_ATLAS_4PORT:
4911 		case P_NEPTUNE_MARAMBA_P0:
4912 		case P_NEPTUNE_MARAMBA_P1:
4913 		case P_NEPTUNE_ALONSO:
4914 			nports = 4;
4915 			break;
4916 		default:
4917 			break;
4918 		}
4919 		break;
4920 	}
4921 
4922 	return (nports);
4923 }
4924 
4925 /*
4926  * The following two functions are to support
4927  * PSARC/2007/453 MSI-X interrupt limit override.
4928  */
4929 static int
4930 nxge_create_msi_property(p_nxge_t nxgep)
4931 {
4932 	int	nmsi;
4933 	extern	int ncpus;
4934 
4935 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==>nxge_create_msi_property"));
4936 
4937 	switch (nxgep->mac.portmode) {
4938 	case PORT_10G_COPPER:
4939 	case PORT_10G_FIBER:
4940 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
4941 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
4942 		/*
4943 		 * The maximum MSI-X requested will be 8.
4944 		 * If the # of CPUs is less than 8, we will reqeust
4945 		 * # MSI-X based on the # of CPUs.
4946 		 */
4947 		if (ncpus >= NXGE_MSIX_REQUEST_10G) {
4948 			nmsi = NXGE_MSIX_REQUEST_10G;
4949 		} else {
4950 			nmsi = ncpus;
4951 		}
4952 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4953 		    "==>nxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
4954 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
4955 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
4956 		break;
4957 
4958 	default:
4959 		nmsi = NXGE_MSIX_REQUEST_1G;
4960 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
4961 		    "==>nxge_create_msi_property(1G): exists 0x%x (nmsi %d)",
4962 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
4963 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
4964 		break;
4965 	}
4966 
4967 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<==nxge_create_msi_property"));
4968 	return (nmsi);
4969 }
4970