xref: /illumos-gate/usr/src/uts/common/io/nxge/nxge_main.c (revision dd72704bd9e794056c558153663c739e2012d721)
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 (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
23  * Copyright 2016 OmniTI Computer Consulting, Inc. All rights reserved.
24  */
25 
26 /*
27  * SunOs MT STREAMS NIU/Neptune 10Gb Ethernet Device Driver.
28  */
29 #include	<sys/nxge/nxge_impl.h>
30 #include	<sys/nxge/nxge_hio.h>
31 #include	<sys/nxge/nxge_rxdma.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  */
40 uint32_t	nxge_msi_enable = 2;
41 
42 /*
43  * Software workaround for a Neptune (PCI-E)
44  * hardware interrupt bug which the hardware
45  * may generate spurious interrupts after the
46  * device interrupt handler was removed. If this flag
47  * is enabled, the driver will reset the
48  * hardware when devices are being detached.
49  */
50 uint32_t	nxge_peu_reset_enable = 0;
51 
52 /*
53  * Software workaround for the hardware
54  * checksum bugs that affect packet transmission
55  * and receive:
56  *
57  * Usage of nxge_cksum_offload:
58  *
59  *  (1) nxge_cksum_offload = 0 (default):
60  *	- transmits packets:
61  *	  TCP: uses the hardware checksum feature.
62  *	  UDP: driver will compute the software checksum
63  *	       based on the partial checksum computed
64  *	       by the IP layer.
65  *	- receives packets
66  *	  TCP: marks packets checksum flags based on hardware result.
67  *	  UDP: will not mark checksum flags.
68  *
69  *  (2) nxge_cksum_offload = 1:
70  *	- transmit packets:
71  *	  TCP/UDP: uses the hardware checksum feature.
72  *	- receives packets
73  *	  TCP/UDP: marks packet checksum flags based on hardware result.
74  *
75  *  (3) nxge_cksum_offload = 2:
76  *	- The driver will not register its checksum capability.
77  *	  Checksum for both TCP and UDP will be computed
78  *	  by the stack.
79  *	- The software LSO is not allowed in this case.
80  *
81  *  (4) nxge_cksum_offload > 2:
82  *	- Will be treated as it is set to 2
83  *	  (stack will compute the checksum).
84  *
85  *  (5) If the hardware bug is fixed, this workaround
86  *	needs to be updated accordingly to reflect
87  *	the new hardware revision.
88  */
89 uint32_t	nxge_cksum_offload = 0;
90 
91 /*
92  * Globals: tunable parameters (/etc/system or adb)
93  *
94  */
95 uint32_t	nxge_rbr_size = NXGE_RBR_RBB_DEFAULT;
96 uint32_t	nxge_rbr_spare_size = 0;
97 uint32_t	nxge_rcr_size = NXGE_RCR_DEFAULT;
98 uint16_t	nxge_rdc_buf_offset = SW_OFFSET_NO_OFFSET;
99 uint32_t	nxge_tx_ring_size = NXGE_TX_RING_DEFAULT;
100 boolean_t	nxge_no_msg = B_TRUE;		/* control message display */
101 uint32_t	nxge_no_link_notify = 0;	/* control DL_NOTIFY */
102 uint32_t	nxge_bcopy_thresh = TX_BCOPY_MAX;
103 uint32_t	nxge_dvma_thresh = TX_FASTDVMA_MIN;
104 uint32_t	nxge_dma_stream_thresh = TX_STREAM_MIN;
105 uint32_t	nxge_jumbo_mtu	= TX_JUMBO_MTU;
106 nxge_tx_mode_t	nxge_tx_scheme = NXGE_USE_SERIAL;
107 
108 /* MAX LSO size */
109 #define		NXGE_LSO_MAXLEN	65535
110 uint32_t	nxge_lso_max = NXGE_LSO_MAXLEN;
111 
112 
113 /*
114  * Add tunable to reduce the amount of time spent in the
115  * ISR doing Rx Processing.
116  */
117 uint32_t nxge_max_rx_pkts = 1024;
118 
119 /*
120  * Tunables to manage the receive buffer blocks.
121  *
122  * nxge_rx_threshold_hi: copy all buffers.
123  * nxge_rx_bcopy_size_type: receive buffer block size type.
124  * nxge_rx_threshold_lo: copy only up to tunable block size type.
125  */
126 nxge_rxbuf_threshold_t nxge_rx_threshold_hi = NXGE_RX_COPY_6;
127 nxge_rxbuf_type_t nxge_rx_buf_size_type = RCR_PKTBUFSZ_0;
128 nxge_rxbuf_threshold_t nxge_rx_threshold_lo = NXGE_RX_COPY_3;
129 
130 uint32_t	nxge_use_kmem_alloc = 1;
131 
132 rtrace_t npi_rtracebuf;
133 
134 /*
135  * The hardware sometimes fails to allow enough time for the link partner
136  * to send an acknowledgement for packets that the hardware sent to it. The
137  * hardware resends the packets earlier than it should be in those instances.
138  * This behavior caused some switches to acknowledge the wrong packets
139  * and it triggered the fatal error.
140  * This software workaround is to set the replay timer to a value
141  * suggested by the hardware team.
142  *
143  * PCI config space replay timer register:
144  *     The following replay timeout value is 0xc
145  *     for bit 14:18.
146  */
147 #define	PCI_REPLAY_TIMEOUT_CFG_OFFSET	0xb8
148 #define	PCI_REPLAY_TIMEOUT_SHIFT	14
149 
150 uint32_t	nxge_set_replay_timer = 1;
151 uint32_t	nxge_replay_timeout = 0xc;
152 
153 /*
154  * The transmit serialization sometimes causes
155  * longer sleep before calling the driver transmit
156  * function as it sleeps longer than it should.
157  * The performace group suggests that a time wait tunable
158  * can be used to set the maximum wait time when needed
159  * and the default is set to 1 tick.
160  */
161 uint32_t	nxge_tx_serial_maxsleep = 1;
162 
163 #if	defined(sun4v)
164 /*
165  * Hypervisor N2/NIU services information.
166  */
167 /*
168  * The following is the default API supported:
169  * major 1 and minor 1.
170  *
171  * Please update the MAX_NIU_MAJORS,
172  * MAX_NIU_MINORS, and minor number supported
173  * when the newer Hypervior API interfaces
174  * are added. Also, please update nxge_hsvc_register()
175  * if needed.
176  */
177 static hsvc_info_t niu_hsvc = {
178 	HSVC_REV_1, NULL, HSVC_GROUP_NIU, NIU_MAJOR_VER,
179 	NIU_MINOR_VER, "nxge"
180 };
181 
182 static int nxge_hsvc_register(p_nxge_t);
183 #endif
184 
185 /*
186  * Function Prototypes
187  */
188 static int nxge_attach(dev_info_t *, ddi_attach_cmd_t);
189 static int nxge_detach(dev_info_t *, ddi_detach_cmd_t);
190 static void nxge_unattach(p_nxge_t);
191 static int nxge_quiesce(dev_info_t *);
192 
193 #if NXGE_PROPERTY
194 static void nxge_remove_hard_properties(p_nxge_t);
195 #endif
196 
197 /*
198  * These two functions are required by nxge_hio.c
199  */
200 extern int nxge_m_mmac_remove(void *arg, int slot);
201 extern void nxge_grp_cleanup(p_nxge_t nxge);
202 
203 static nxge_status_t nxge_setup_system_dma_pages(p_nxge_t);
204 
205 static nxge_status_t nxge_setup_mutexes(p_nxge_t);
206 static void nxge_destroy_mutexes(p_nxge_t);
207 
208 static nxge_status_t nxge_map_regs(p_nxge_t nxgep);
209 static void nxge_unmap_regs(p_nxge_t nxgep);
210 #ifdef	NXGE_DEBUG
211 static void nxge_test_map_regs(p_nxge_t nxgep);
212 #endif
213 
214 static nxge_status_t nxge_add_intrs(p_nxge_t nxgep);
215 static void nxge_remove_intrs(p_nxge_t nxgep);
216 
217 static nxge_status_t nxge_add_intrs_adv(p_nxge_t nxgep);
218 static nxge_status_t nxge_add_intrs_adv_type(p_nxge_t, uint32_t);
219 static nxge_status_t nxge_add_intrs_adv_type_fix(p_nxge_t, uint32_t);
220 static void nxge_intrs_enable(p_nxge_t nxgep);
221 static void nxge_intrs_disable(p_nxge_t nxgep);
222 
223 static void nxge_suspend(p_nxge_t);
224 static nxge_status_t nxge_resume(p_nxge_t);
225 
226 static nxge_status_t nxge_setup_dev(p_nxge_t);
227 static void nxge_destroy_dev(p_nxge_t);
228 
229 static nxge_status_t nxge_alloc_mem_pool(p_nxge_t);
230 static void nxge_free_mem_pool(p_nxge_t);
231 
232 nxge_status_t nxge_alloc_rx_mem_pool(p_nxge_t);
233 static void nxge_free_rx_mem_pool(p_nxge_t);
234 
235 nxge_status_t nxge_alloc_tx_mem_pool(p_nxge_t);
236 static void nxge_free_tx_mem_pool(p_nxge_t);
237 
238 static nxge_status_t nxge_dma_mem_alloc(p_nxge_t, dma_method_t,
239 	struct ddi_dma_attr *,
240 	size_t, ddi_device_acc_attr_t *, uint_t,
241 	p_nxge_dma_common_t);
242 
243 static void nxge_dma_mem_free(p_nxge_dma_common_t);
244 static void nxge_dma_free_rx_data_buf(p_nxge_dma_common_t);
245 
246 static nxge_status_t nxge_alloc_rx_buf_dma(p_nxge_t, uint16_t,
247 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
248 static void nxge_free_rx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
249 
250 static nxge_status_t nxge_alloc_rx_cntl_dma(p_nxge_t, uint16_t,
251 	p_nxge_dma_common_t *, size_t);
252 static void nxge_free_rx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
253 
254 extern nxge_status_t nxge_alloc_tx_buf_dma(p_nxge_t, uint16_t,
255 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
256 static void nxge_free_tx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
257 
258 extern nxge_status_t nxge_alloc_tx_cntl_dma(p_nxge_t, uint16_t,
259 	p_nxge_dma_common_t *,
260 	size_t);
261 static void nxge_free_tx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
262 
263 static int nxge_init_common_dev(p_nxge_t);
264 static void nxge_uninit_common_dev(p_nxge_t);
265 extern int nxge_param_set_mac(p_nxge_t, queue_t *, mblk_t *,
266     char *, caddr_t);
267 #if defined(sun4v)
268 extern nxge_status_t nxge_hio_rdc_enable(p_nxge_t nxgep);
269 extern nxge_status_t nxge_hio_rdc_intr_arm(p_nxge_t nxge, boolean_t arm);
270 #endif
271 
272 /*
273  * The next declarations are for the GLDv3 interface.
274  */
275 static int nxge_m_start(void *);
276 static void nxge_m_stop(void *);
277 static int nxge_m_multicst(void *, boolean_t, const uint8_t *);
278 static int nxge_m_promisc(void *, boolean_t);
279 static void nxge_m_ioctl(void *, queue_t *, mblk_t *);
280 nxge_status_t nxge_mac_register(p_nxge_t);
281 static int nxge_altmac_set(p_nxge_t nxgep, uint8_t *mac_addr,
282 	int slot, int rdctbl, boolean_t usetbl);
283 void nxge_mmac_kstat_update(p_nxge_t nxgep, int slot,
284 	boolean_t factory);
285 
286 static void nxge_m_getfactaddr(void *, uint_t, uint8_t *);
287 static	boolean_t nxge_m_getcapab(void *, mac_capab_t, void *);
288 static int nxge_m_setprop(void *, const char *, mac_prop_id_t,
289     uint_t, const void *);
290 static int nxge_m_getprop(void *, const char *, mac_prop_id_t,
291     uint_t, void *);
292 static void nxge_m_propinfo(void *, const char *, mac_prop_id_t,
293     mac_prop_info_handle_t);
294 static void nxge_priv_propinfo(const char *, mac_prop_info_handle_t);
295 static int nxge_set_priv_prop(nxge_t *, const char *, uint_t,
296     const void *);
297 static int nxge_get_priv_prop(nxge_t *, const char *, uint_t, void *);
298 static void nxge_fill_ring(void *, mac_ring_type_t, const int, const int,
299     mac_ring_info_t *, mac_ring_handle_t);
300 static void nxge_group_add_ring(mac_group_driver_t, mac_ring_driver_t,
301     mac_ring_type_t);
302 static void nxge_group_rem_ring(mac_group_driver_t, mac_ring_driver_t,
303     mac_ring_type_t);
304 
305 static void nxge_niu_peu_reset(p_nxge_t nxgep);
306 static void nxge_set_pci_replay_timeout(nxge_t *);
307 
308 char *nxge_priv_props[] = {
309 	"_adv_10gfdx_cap",
310 	"_adv_pause_cap",
311 	"_function_number",
312 	"_fw_version",
313 	"_port_mode",
314 	"_hot_swap_phy",
315 	"_rxdma_intr_time",
316 	"_rxdma_intr_pkts",
317 	"_class_opt_ipv4_tcp",
318 	"_class_opt_ipv4_udp",
319 	"_class_opt_ipv4_ah",
320 	"_class_opt_ipv4_sctp",
321 	"_class_opt_ipv6_tcp",
322 	"_class_opt_ipv6_udp",
323 	"_class_opt_ipv6_ah",
324 	"_class_opt_ipv6_sctp",
325 	"_soft_lso_enable",
326 	NULL
327 };
328 
329 #define	NXGE_NEPTUNE_MAGIC	0x4E584745UL
330 #define	MAX_DUMP_SZ 256
331 
332 #define	NXGE_M_CALLBACK_FLAGS	\
333 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP | MC_PROPINFO)
334 
335 mac_callbacks_t nxge_m_callbacks = {
336 	NXGE_M_CALLBACK_FLAGS,
337 	nxge_m_stat,
338 	nxge_m_start,
339 	nxge_m_stop,
340 	nxge_m_promisc,
341 	nxge_m_multicst,
342 	NULL,
343 	NULL,
344 	NULL,
345 	nxge_m_ioctl,
346 	nxge_m_getcapab,
347 	NULL,
348 	NULL,
349 	nxge_m_setprop,
350 	nxge_m_getprop,
351 	nxge_m_propinfo
352 };
353 
354 void
355 nxge_err_inject(p_nxge_t, queue_t *, mblk_t *);
356 
357 /* PSARC/2007/453 MSI-X interrupt limit override. */
358 #define	NXGE_MSIX_REQUEST_10G	8
359 #define	NXGE_MSIX_REQUEST_1G	2
360 static int nxge_create_msi_property(p_nxge_t);
361 /*
362  * For applications that care about the
363  * latency, it was requested by PAE and the
364  * customers that the driver has tunables that
365  * allow the user to tune it to a higher number
366  * interrupts to spread the interrupts among
367  * multiple channels. The DDI framework limits
368  * the maximum number of MSI-X resources to allocate
369  * to 8 (ddi_msix_alloc_limit). If more than 8
370  * is set, ddi_msix_alloc_limit must be set accordingly.
371  * The default number of MSI interrupts are set to
372  * 8 for 10G and 2 for 1G link.
373  */
374 #define	NXGE_MSIX_MAX_ALLOWED	32
375 uint32_t nxge_msix_10g_intrs = NXGE_MSIX_REQUEST_10G;
376 uint32_t nxge_msix_1g_intrs = NXGE_MSIX_REQUEST_1G;
377 
378 /*
379  * These global variables control the message
380  * output.
381  */
382 out_dbgmsg_t nxge_dbgmsg_out = DBG_CONSOLE | STR_LOG;
383 uint64_t nxge_debug_level;
384 
385 /*
386  * This list contains the instance structures for the Neptune
387  * devices present in the system. The lock exists to guarantee
388  * mutually exclusive access to the list.
389  */
390 void			*nxge_list = NULL;
391 void			*nxge_hw_list = NULL;
392 nxge_os_mutex_t		nxge_common_lock;
393 nxge_os_mutex_t		nxgedebuglock;
394 
395 extern uint64_t		npi_debug_level;
396 
397 extern nxge_status_t	nxge_ldgv_init(p_nxge_t, int *, int *);
398 extern nxge_status_t	nxge_ldgv_init_n2(p_nxge_t, int *, int *);
399 extern nxge_status_t	nxge_ldgv_uninit(p_nxge_t);
400 extern nxge_status_t	nxge_intr_ldgv_init(p_nxge_t);
401 extern void		nxge_fm_init(p_nxge_t,
402 					ddi_device_acc_attr_t *,
403 					ddi_dma_attr_t *);
404 extern void		nxge_fm_fini(p_nxge_t);
405 extern npi_status_t	npi_mac_altaddr_disable(npi_handle_t, uint8_t, uint8_t);
406 
407 /*
408  * Count used to maintain the number of buffers being used
409  * by Neptune instances and loaned up to the upper layers.
410  */
411 uint32_t nxge_mblks_pending = 0;
412 
413 /*
414  * Device register access attributes for PIO.
415  */
416 static ddi_device_acc_attr_t nxge_dev_reg_acc_attr = {
417 	DDI_DEVICE_ATTR_V1,
418 	DDI_STRUCTURE_LE_ACC,
419 	DDI_STRICTORDER_ACC,
420 	DDI_DEFAULT_ACC
421 };
422 
423 /*
424  * Device descriptor access attributes for DMA.
425  */
426 static ddi_device_acc_attr_t nxge_dev_desc_dma_acc_attr = {
427 	DDI_DEVICE_ATTR_V0,
428 	DDI_STRUCTURE_LE_ACC,
429 	DDI_STRICTORDER_ACC
430 };
431 
432 /*
433  * Device buffer access attributes for DMA.
434  */
435 static ddi_device_acc_attr_t nxge_dev_buf_dma_acc_attr = {
436 	DDI_DEVICE_ATTR_V0,
437 	DDI_STRUCTURE_BE_ACC,
438 	DDI_STRICTORDER_ACC
439 };
440 
441 ddi_dma_attr_t nxge_desc_dma_attr = {
442 	DMA_ATTR_V0,		/* version number. */
443 	0,			/* low address */
444 	0xffffffffffffffff,	/* high address */
445 	0xffffffffffffffff,	/* address counter max */
446 #ifndef NIU_PA_WORKAROUND
447 	0x100000,		/* alignment */
448 #else
449 	0x2000,
450 #endif
451 	0xfc00fc,		/* dlim_burstsizes */
452 	0x1,			/* minimum transfer size */
453 	0xffffffffffffffff,	/* maximum transfer size */
454 	0xffffffffffffffff,	/* maximum segment size */
455 	1,			/* scatter/gather list length */
456 	(unsigned int) 1,	/* granularity */
457 	0			/* attribute flags */
458 };
459 
460 ddi_dma_attr_t nxge_tx_dma_attr = {
461 	DMA_ATTR_V0,		/* version number. */
462 	0,			/* low address */
463 	0xffffffffffffffff,	/* high address */
464 	0xffffffffffffffff,	/* address counter max */
465 #if defined(_BIG_ENDIAN)
466 	0x2000,			/* alignment */
467 #else
468 	0x1000,			/* alignment */
469 #endif
470 	0xfc00fc,		/* dlim_burstsizes */
471 	0x1,			/* minimum transfer size */
472 	0xffffffffffffffff,	/* maximum transfer size */
473 	0xffffffffffffffff,	/* maximum segment size */
474 	5,			/* scatter/gather list length */
475 	(unsigned int) 1,	/* granularity */
476 	0			/* attribute flags */
477 };
478 
479 ddi_dma_attr_t nxge_rx_dma_attr = {
480 	DMA_ATTR_V0,		/* version number. */
481 	0,			/* low address */
482 	0xffffffffffffffff,	/* high address */
483 	0xffffffffffffffff,	/* address counter max */
484 	0x2000,			/* alignment */
485 	0xfc00fc,		/* dlim_burstsizes */
486 	0x1,			/* minimum transfer size */
487 	0xffffffffffffffff,	/* maximum transfer size */
488 	0xffffffffffffffff,	/* maximum segment size */
489 	1,			/* scatter/gather list length */
490 	(unsigned int) 1,	/* granularity */
491 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
492 };
493 
494 ddi_dma_lim_t nxge_dma_limits = {
495 	(uint_t)0,		/* dlim_addr_lo */
496 	(uint_t)0xffffffff,	/* dlim_addr_hi */
497 	(uint_t)0xffffffff,	/* dlim_cntr_max */
498 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
499 	0x1,			/* dlim_minxfer */
500 	1024			/* dlim_speed */
501 };
502 
503 dma_method_t nxge_force_dma = DVMA;
504 
505 /*
506  * dma chunk sizes.
507  *
508  * Try to allocate the largest possible size
509  * so that fewer number of dma chunks would be managed
510  */
511 #ifdef NIU_PA_WORKAROUND
512 size_t alloc_sizes [] = {0x2000};
513 #else
514 size_t alloc_sizes [] = {0x1000, 0x2000, 0x4000, 0x8000,
515 		0x10000, 0x20000, 0x40000, 0x80000,
516 		0x100000, 0x200000, 0x400000, 0x800000,
517 		0x1000000, 0x2000000, 0x4000000};
518 #endif
519 
520 /*
521  * Translate "dev_t" to a pointer to the associated "dev_info_t".
522  */
523 
524 extern void nxge_get_environs(nxge_t *);
525 
526 static int
527 nxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
528 {
529 	p_nxge_t	nxgep = NULL;
530 	int		instance;
531 	int		status = DDI_SUCCESS;
532 	uint8_t		portn;
533 	nxge_mmac_t	*mmac_info;
534 
535 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_attach"));
536 
537 	/*
538 	 * Get the device instance since we'll need to setup
539 	 * or retrieve a soft state for this instance.
540 	 */
541 	instance = ddi_get_instance(dip);
542 
543 	switch (cmd) {
544 	case DDI_ATTACH:
545 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_ATTACH"));
546 		break;
547 
548 	case DDI_RESUME:
549 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_RESUME"));
550 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
551 		if (nxgep == NULL) {
552 			status = DDI_FAILURE;
553 			break;
554 		}
555 		if (nxgep->dip != dip) {
556 			status = DDI_FAILURE;
557 			break;
558 		}
559 		if (nxgep->suspended == DDI_PM_SUSPEND) {
560 			status = ddi_dev_is_needed(nxgep->dip, 0, 1);
561 		} else {
562 			status = nxge_resume(nxgep);
563 		}
564 		goto nxge_attach_exit;
565 
566 	case DDI_PM_RESUME:
567 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_RESUME"));
568 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
569 		if (nxgep == NULL) {
570 			status = DDI_FAILURE;
571 			break;
572 		}
573 		if (nxgep->dip != dip) {
574 			status = DDI_FAILURE;
575 			break;
576 		}
577 		status = nxge_resume(nxgep);
578 		goto nxge_attach_exit;
579 
580 	default:
581 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing unknown"));
582 		status = DDI_FAILURE;
583 		goto nxge_attach_exit;
584 	}
585 
586 
587 	if (ddi_soft_state_zalloc(nxge_list, instance) == DDI_FAILURE) {
588 		status = DDI_FAILURE;
589 		goto nxge_attach_exit;
590 	}
591 
592 	nxgep = ddi_get_soft_state(nxge_list, instance);
593 	if (nxgep == NULL) {
594 		status = NXGE_ERROR;
595 		goto nxge_attach_fail2;
596 	}
597 
598 	nxgep->nxge_magic = NXGE_MAGIC;
599 
600 	nxgep->drv_state = 0;
601 	nxgep->dip = dip;
602 	nxgep->instance = instance;
603 	nxgep->p_dip = ddi_get_parent(dip);
604 	nxgep->nxge_debug_level = nxge_debug_level;
605 	npi_debug_level = nxge_debug_level;
606 
607 	/* Are we a guest running in a Hybrid I/O environment? */
608 	nxge_get_environs(nxgep);
609 
610 	status = nxge_map_regs(nxgep);
611 
612 	if (status != NXGE_OK) {
613 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_map_regs failed"));
614 		goto nxge_attach_fail3;
615 	}
616 
617 	nxge_fm_init(nxgep, &nxge_dev_reg_acc_attr, &nxge_rx_dma_attr);
618 
619 	/* Create & initialize the per-Neptune data structure */
620 	/* (even if we're a guest). */
621 	status = nxge_init_common_dev(nxgep);
622 	if (status != NXGE_OK) {
623 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
624 		    "nxge_init_common_dev failed"));
625 		goto nxge_attach_fail4;
626 	}
627 
628 	/*
629 	 * Software workaround: set the replay timer.
630 	 */
631 	if (nxgep->niu_type != N2_NIU) {
632 		nxge_set_pci_replay_timeout(nxgep);
633 	}
634 
635 #if defined(sun4v)
636 	/* This is required by nxge_hio_init(), which follows. */
637 	if ((status = nxge_hsvc_register(nxgep)) != DDI_SUCCESS)
638 		goto nxge_attach_fail4;
639 #endif
640 
641 	if ((status = nxge_hio_init(nxgep)) != NXGE_OK) {
642 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
643 		    "nxge_hio_init failed"));
644 		goto nxge_attach_fail4;
645 	}
646 
647 	if (nxgep->niu_type == NEPTUNE_2_10GF) {
648 		if (nxgep->function_num > 1) {
649 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Unsupported"
650 			    " function %d. Only functions 0 and 1 are "
651 			    "supported for this card.", nxgep->function_num));
652 			status = NXGE_ERROR;
653 			goto nxge_attach_fail4;
654 		}
655 	}
656 
657 	if (isLDOMguest(nxgep)) {
658 		/*
659 		 * Use the function number here.
660 		 */
661 		nxgep->mac.portnum = nxgep->function_num;
662 		nxgep->mac.porttype = PORT_TYPE_LOGICAL;
663 
664 		/* XXX We'll set the MAC address counts to 1 for now. */
665 		mmac_info = &nxgep->nxge_mmac_info;
666 		mmac_info->num_mmac = 1;
667 		mmac_info->naddrfree = 1;
668 	} else {
669 		portn = NXGE_GET_PORT_NUM(nxgep->function_num);
670 		nxgep->mac.portnum = portn;
671 		if ((portn == 0) || (portn == 1))
672 			nxgep->mac.porttype = PORT_TYPE_XMAC;
673 		else
674 			nxgep->mac.porttype = PORT_TYPE_BMAC;
675 		/*
676 		 * Neptune has 4 ports, the first 2 ports use XMAC (10G MAC)
677 		 * internally, the rest 2 ports use BMAC (1G "Big" MAC).
678 		 * The two types of MACs have different characterizations.
679 		 */
680 		mmac_info = &nxgep->nxge_mmac_info;
681 		if (nxgep->function_num < 2) {
682 			mmac_info->num_mmac = XMAC_MAX_ALT_ADDR_ENTRY;
683 			mmac_info->naddrfree = XMAC_MAX_ALT_ADDR_ENTRY;
684 		} else {
685 			mmac_info->num_mmac = BMAC_MAX_ALT_ADDR_ENTRY;
686 			mmac_info->naddrfree = BMAC_MAX_ALT_ADDR_ENTRY;
687 		}
688 	}
689 	/*
690 	 * Setup the Ndd parameters for the this instance.
691 	 */
692 	nxge_init_param(nxgep);
693 
694 	/*
695 	 * Setup Register Tracing Buffer.
696 	 */
697 	npi_rtrace_buf_init((rtrace_t *)&npi_rtracebuf);
698 
699 	/* init stats ptr */
700 	nxge_init_statsp(nxgep);
701 
702 	/*
703 	 * Copy the vpd info from eeprom to a local data
704 	 * structure, and then check its validity.
705 	 */
706 	if (!isLDOMguest(nxgep)) {
707 		int *regp;
708 		uint_t reglen;
709 		int rv;
710 
711 		nxge_vpd_info_get(nxgep);
712 
713 		/* Find the NIU config handle. */
714 		rv = ddi_prop_lookup_int_array(DDI_DEV_T_ANY,
715 		    ddi_get_parent(nxgep->dip), DDI_PROP_DONTPASS,
716 		    "reg", &regp, &reglen);
717 
718 		if (rv != DDI_PROP_SUCCESS) {
719 			goto nxge_attach_fail5;
720 		}
721 		/*
722 		 * The address_hi, that is the first int, in the reg
723 		 * property consists of config handle, but need to remove
724 		 * the bits 28-31 which are OBP specific info.
725 		 */
726 		nxgep->niu_cfg_hdl = (*regp) & 0xFFFFFFF;
727 		ddi_prop_free(regp);
728 	}
729 
730 	/*
731 	 * Set the defaults for the MTU size.
732 	 */
733 	nxge_hw_id_init(nxgep);
734 
735 	if (isLDOMguest(nxgep)) {
736 		uchar_t *prop_val;
737 		uint_t prop_len;
738 		uint32_t max_frame_size;
739 
740 		extern void nxge_get_logical_props(p_nxge_t);
741 
742 		nxgep->statsp->mac_stats.xcvr_inuse = LOGICAL_XCVR;
743 		nxgep->mac.portmode = PORT_LOGICAL;
744 		(void) ddi_prop_update_string(DDI_DEV_T_NONE, nxgep->dip,
745 		    "phy-type", "virtual transceiver");
746 
747 		nxgep->nports = 1;
748 		nxgep->board_ver = 0;	/* XXX What? */
749 
750 		/*
751 		 * local-mac-address property gives us info on which
752 		 * specific MAC address the Hybrid resource is associated
753 		 * with.
754 		 */
755 		if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, nxgep->dip, 0,
756 		    "local-mac-address", &prop_val,
757 		    &prop_len) != DDI_PROP_SUCCESS) {
758 			goto nxge_attach_fail5;
759 		}
760 		if (prop_len !=	 ETHERADDRL) {
761 			ddi_prop_free(prop_val);
762 			goto nxge_attach_fail5;
763 		}
764 		ether_copy(prop_val, nxgep->hio_mac_addr);
765 		ddi_prop_free(prop_val);
766 		nxge_get_logical_props(nxgep);
767 
768 		/*
769 		 * Enable Jumbo property based on the "max-frame-size"
770 		 * property value.
771 		 */
772 		max_frame_size = ddi_prop_get_int(DDI_DEV_T_ANY,
773 		    nxgep->dip, DDI_PROP_DONTPASS | DDI_PROP_NOTPROM,
774 		    "max-frame-size", NXGE_MTU_DEFAULT_MAX);
775 		if ((max_frame_size > NXGE_MTU_DEFAULT_MAX) &&
776 		    (max_frame_size <= TX_JUMBO_MTU)) {
777 			nxgep->mac.is_jumbo = B_TRUE;
778 			nxgep->mac.maxframesize = (uint16_t)max_frame_size;
779 			nxgep->mac.default_mtu = nxgep->mac.maxframesize -
780 			    NXGE_EHEADER_VLAN_CRC;
781 		}
782 	} else {
783 		status = nxge_xcvr_find(nxgep);
784 
785 		if (status != NXGE_OK) {
786 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_attach: "
787 			    " Couldn't determine card type"
788 			    " .... exit "));
789 			goto nxge_attach_fail5;
790 		}
791 
792 		status = nxge_get_config_properties(nxgep);
793 
794 		if (status != NXGE_OK) {
795 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
796 			    "get_hw create failed"));
797 			goto nxge_attach_fail;
798 		}
799 	}
800 
801 	/*
802 	 * Setup the Kstats for the driver.
803 	 */
804 	nxge_setup_kstats(nxgep);
805 
806 	if (!isLDOMguest(nxgep))
807 		nxge_setup_param(nxgep);
808 
809 	status = nxge_setup_system_dma_pages(nxgep);
810 	if (status != NXGE_OK) {
811 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "set dma page failed"));
812 		goto nxge_attach_fail;
813 	}
814 
815 
816 	if (!isLDOMguest(nxgep))
817 		nxge_hw_init_niu_common(nxgep);
818 
819 	status = nxge_setup_mutexes(nxgep);
820 	if (status != NXGE_OK) {
821 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set mutex failed"));
822 		goto nxge_attach_fail;
823 	}
824 
825 #if defined(sun4v)
826 	if (isLDOMguest(nxgep)) {
827 		/* Find our VR & channel sets. */
828 		status = nxge_hio_vr_add(nxgep);
829 		if (status != DDI_SUCCESS) {
830 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
831 			    "nxge_hio_vr_add failed"));
832 			(void) hsvc_unregister(&nxgep->niu_hsvc);
833 			nxgep->niu_hsvc_available = B_FALSE;
834 			goto nxge_attach_fail;
835 		}
836 		goto nxge_attach_exit;
837 	}
838 #endif
839 
840 	status = nxge_setup_dev(nxgep);
841 	if (status != DDI_SUCCESS) {
842 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set dev failed"));
843 		goto nxge_attach_fail;
844 	}
845 
846 	status = nxge_add_intrs(nxgep);
847 	if (status != DDI_SUCCESS) {
848 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "add_intr failed"));
849 		goto nxge_attach_fail;
850 	}
851 
852 	/* If a guest, register with vio_net instead. */
853 	if ((status = nxge_mac_register(nxgep)) != NXGE_OK) {
854 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
855 		    "unable to register to mac layer (%d)", status));
856 		goto nxge_attach_fail;
857 	}
858 
859 	mac_link_update(nxgep->mach, LINK_STATE_UNKNOWN);
860 
861 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
862 	    "registered to mac (instance %d)", instance));
863 
864 	/* nxge_link_monitor calls xcvr.check_link recursively */
865 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
866 
867 	goto nxge_attach_exit;
868 
869 nxge_attach_fail:
870 	nxge_unattach(nxgep);
871 	goto nxge_attach_fail1;
872 
873 nxge_attach_fail5:
874 	/*
875 	 * Tear down the ndd parameters setup.
876 	 */
877 	nxge_destroy_param(nxgep);
878 
879 	/*
880 	 * Tear down the kstat setup.
881 	 */
882 	nxge_destroy_kstats(nxgep);
883 
884 nxge_attach_fail4:
885 	if (nxgep->nxge_hw_p) {
886 		nxge_uninit_common_dev(nxgep);
887 		nxgep->nxge_hw_p = NULL;
888 	}
889 
890 nxge_attach_fail3:
891 	/*
892 	 * Unmap the register setup.
893 	 */
894 	nxge_unmap_regs(nxgep);
895 
896 	nxge_fm_fini(nxgep);
897 
898 nxge_attach_fail2:
899 	ddi_soft_state_free(nxge_list, nxgep->instance);
900 
901 nxge_attach_fail1:
902 	if (status != NXGE_OK)
903 		status = (NXGE_ERROR | NXGE_DDI_FAILED);
904 	nxgep = NULL;
905 
906 nxge_attach_exit:
907 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_attach status = 0x%08x",
908 	    status));
909 
910 	return (status);
911 }
912 
913 static int
914 nxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
915 {
916 	int		status = DDI_SUCCESS;
917 	int		instance;
918 	p_nxge_t	nxgep = NULL;
919 
920 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_detach"));
921 	instance = ddi_get_instance(dip);
922 	nxgep = ddi_get_soft_state(nxge_list, instance);
923 	if (nxgep == NULL) {
924 		status = DDI_FAILURE;
925 		goto nxge_detach_exit;
926 	}
927 
928 	switch (cmd) {
929 	case DDI_DETACH:
930 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_DETACH"));
931 		break;
932 
933 	case DDI_PM_SUSPEND:
934 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
935 		nxgep->suspended = DDI_PM_SUSPEND;
936 		nxge_suspend(nxgep);
937 		break;
938 
939 	case DDI_SUSPEND:
940 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_SUSPEND"));
941 		if (nxgep->suspended != DDI_PM_SUSPEND) {
942 			nxgep->suspended = DDI_SUSPEND;
943 			nxge_suspend(nxgep);
944 		}
945 		break;
946 
947 	default:
948 		status = DDI_FAILURE;
949 	}
950 
951 	if (cmd != DDI_DETACH)
952 		goto nxge_detach_exit;
953 
954 	/*
955 	 * Stop the xcvr polling.
956 	 */
957 	nxgep->suspended = cmd;
958 
959 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
960 
961 	if (nxgep->mach && (status = mac_unregister(nxgep->mach)) != 0) {
962 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
963 		    "<== nxge_detach status = 0x%08X", status));
964 		return (DDI_FAILURE);
965 	}
966 
967 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
968 	    "<== nxge_detach (mac_unregister) status = 0x%08X", status));
969 
970 	nxge_unattach(nxgep);
971 	nxgep = NULL;
972 
973 nxge_detach_exit:
974 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_detach status = 0x%08X",
975 	    status));
976 
977 	return (status);
978 }
979 
980 static void
981 nxge_unattach(p_nxge_t nxgep)
982 {
983 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unattach"));
984 
985 	if (nxgep == NULL || nxgep->dev_regs == NULL) {
986 		return;
987 	}
988 
989 	nxgep->nxge_magic = 0;
990 
991 	if (nxgep->nxge_timerid) {
992 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
993 		nxgep->nxge_timerid = 0;
994 	}
995 
996 	/*
997 	 * If this flag is set, it will affect the Neptune
998 	 * only.
999 	 */
1000 	if ((nxgep->niu_type != N2_NIU) && nxge_peu_reset_enable) {
1001 		nxge_niu_peu_reset(nxgep);
1002 	}
1003 
1004 #if	defined(sun4v)
1005 	if (isLDOMguest(nxgep)) {
1006 		(void) nxge_hio_vr_release(nxgep);
1007 	}
1008 #endif
1009 
1010 	if (nxgep->nxge_hw_p) {
1011 		nxge_uninit_common_dev(nxgep);
1012 		nxgep->nxge_hw_p = NULL;
1013 	}
1014 
1015 #if	defined(sun4v)
1016 	if (nxgep->niu_type == N2_NIU && nxgep->niu_hsvc_available == B_TRUE) {
1017 		(void) hsvc_unregister(&nxgep->niu_hsvc);
1018 		nxgep->niu_hsvc_available = B_FALSE;
1019 	}
1020 #endif
1021 	/*
1022 	 * Stop any further interrupts.
1023 	 */
1024 	nxge_remove_intrs(nxgep);
1025 
1026 	/*
1027 	 * Stop the device and free resources.
1028 	 */
1029 	if (!isLDOMguest(nxgep)) {
1030 		nxge_destroy_dev(nxgep);
1031 	}
1032 
1033 	/*
1034 	 * Tear down the ndd parameters setup.
1035 	 */
1036 	nxge_destroy_param(nxgep);
1037 
1038 	/*
1039 	 * Tear down the kstat setup.
1040 	 */
1041 	nxge_destroy_kstats(nxgep);
1042 
1043 	/*
1044 	 * Free any memory allocated for PHY properties
1045 	 */
1046 	if (nxgep->phy_prop.cnt > 0) {
1047 		KMEM_FREE(nxgep->phy_prop.arr,
1048 		    sizeof (nxge_phy_mdio_val_t) * nxgep->phy_prop.cnt);
1049 		nxgep->phy_prop.cnt = 0;
1050 	}
1051 
1052 	/*
1053 	 * Destroy all mutexes.
1054 	 */
1055 	nxge_destroy_mutexes(nxgep);
1056 
1057 	/*
1058 	 * Remove the list of ndd parameters which
1059 	 * were setup during attach.
1060 	 */
1061 	if (nxgep->dip) {
1062 		NXGE_DEBUG_MSG((nxgep, OBP_CTL,
1063 		    " nxge_unattach: remove all properties"));
1064 
1065 		(void) ddi_prop_remove_all(nxgep->dip);
1066 	}
1067 
1068 #if NXGE_PROPERTY
1069 	nxge_remove_hard_properties(nxgep);
1070 #endif
1071 
1072 	/*
1073 	 * Unmap the register setup.
1074 	 */
1075 	nxge_unmap_regs(nxgep);
1076 
1077 	nxge_fm_fini(nxgep);
1078 
1079 	ddi_soft_state_free(nxge_list, nxgep->instance);
1080 
1081 	NXGE_DEBUG_MSG((NULL, DDI_CTL, "<== nxge_unattach"));
1082 }
1083 
1084 #if defined(sun4v)
1085 int
1086 nxge_hsvc_register(nxge_t *nxgep)
1087 {
1088 	nxge_status_t status;
1089 	int i, j;
1090 
1091 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_hsvc_register"));
1092 	if (nxgep->niu_type != N2_NIU) {
1093 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_hsvc_register"));
1094 		return (DDI_SUCCESS);
1095 	}
1096 
1097 	/*
1098 	 * Currently, the NIU Hypervisor API supports two major versions:
1099 	 * version 1 and 2.
1100 	 * If Hypervisor introduces a higher major or minor version,
1101 	 * please update NIU_MAJOR_HI and NIU_MINOR_HI accordingly.
1102 	 */
1103 	nxgep->niu_hsvc_available = B_FALSE;
1104 	bcopy(&niu_hsvc, &nxgep->niu_hsvc,
1105 	    sizeof (hsvc_info_t));
1106 
1107 	for (i = NIU_MAJOR_HI; i > 0; i--) {
1108 		nxgep->niu_hsvc.hsvc_major = i;
1109 		for (j = NIU_MINOR_HI; j >= 0; j--) {
1110 			nxgep->niu_hsvc.hsvc_minor = j;
1111 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1112 			    "nxge_hsvc_register: %s: negotiating "
1113 			    "hypervisor services revision %d "
1114 			    "group: 0x%lx major: 0x%lx "
1115 			    "minor: 0x%lx",
1116 			    nxgep->niu_hsvc.hsvc_modname,
1117 			    nxgep->niu_hsvc.hsvc_rev,
1118 			    nxgep->niu_hsvc.hsvc_group,
1119 			    nxgep->niu_hsvc.hsvc_major,
1120 			    nxgep->niu_hsvc.hsvc_minor,
1121 			    nxgep->niu_min_ver));
1122 
1123 			if ((status = hsvc_register(&nxgep->niu_hsvc,
1124 			    &nxgep->niu_min_ver)) == 0) {
1125 				/* Use the supported minor */
1126 				nxgep->niu_hsvc.hsvc_minor = nxgep->niu_min_ver;
1127 				NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1128 				    "nxge_hsvc_register: %s: negotiated "
1129 				    "hypervisor services revision %d "
1130 				    "group: 0x%lx major: 0x%lx "
1131 				    "minor: 0x%lx (niu_min_ver 0x%lx)",
1132 				    nxgep->niu_hsvc.hsvc_modname,
1133 				    nxgep->niu_hsvc.hsvc_rev,
1134 				    nxgep->niu_hsvc.hsvc_group,
1135 				    nxgep->niu_hsvc.hsvc_major,
1136 				    nxgep->niu_hsvc.hsvc_minor,
1137 				    nxgep->niu_min_ver));
1138 
1139 				nxgep->niu_hsvc_available = B_TRUE;
1140 				NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1141 				    "<== nxge_hsvc_register: "
1142 				    "NIU Hypervisor service enabled"));
1143 				return (DDI_SUCCESS);
1144 			}
1145 
1146 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1147 			    "nxge_hsvc_register: %s: negotiated failed - "
1148 			    "try lower major number "
1149 			    "hypervisor services revision %d "
1150 			    "group: 0x%lx major: 0x%lx minor: 0x%lx "
1151 			    "errno: %d",
1152 			    nxgep->niu_hsvc.hsvc_modname,
1153 			    nxgep->niu_hsvc.hsvc_rev,
1154 			    nxgep->niu_hsvc.hsvc_group,
1155 			    nxgep->niu_hsvc.hsvc_major,
1156 			    nxgep->niu_hsvc.hsvc_minor, status));
1157 		}
1158 	}
1159 
1160 	NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1161 	    "nxge_hsvc_register: %s: cannot negotiate "
1162 	    "hypervisor services revision %d group: 0x%lx "
1163 	    "major: 0x%lx minor: 0x%lx errno: %d",
1164 	    niu_hsvc.hsvc_modname, niu_hsvc.hsvc_rev,
1165 	    niu_hsvc.hsvc_group, niu_hsvc.hsvc_major,
1166 	    niu_hsvc.hsvc_minor, status));
1167 
1168 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1169 	    "<== nxge_hsvc_register: Register to NIU Hypervisor failed"));
1170 
1171 	return (DDI_FAILURE);
1172 }
1173 #endif
1174 
1175 static char n2_siu_name[] = "niu";
1176 
1177 static nxge_status_t
1178 nxge_map_regs(p_nxge_t nxgep)
1179 {
1180 	int		ddi_status = DDI_SUCCESS;
1181 	p_dev_regs_t	dev_regs;
1182 	char		buf[MAXPATHLEN + 1];
1183 	char		*devname;
1184 #ifdef	NXGE_DEBUG
1185 	char		*sysname;
1186 #endif
1187 	off_t		regsize;
1188 	nxge_status_t	status = NXGE_OK;
1189 #if !defined(_BIG_ENDIAN)
1190 	off_t pci_offset;
1191 	uint16_t pcie_devctl;
1192 #endif
1193 
1194 	if (isLDOMguest(nxgep)) {
1195 		return (nxge_guest_regs_map(nxgep));
1196 	}
1197 
1198 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_map_regs"));
1199 	nxgep->dev_regs = NULL;
1200 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
1201 	dev_regs->nxge_regh = NULL;
1202 	dev_regs->nxge_pciregh = NULL;
1203 	dev_regs->nxge_msix_regh = NULL;
1204 	dev_regs->nxge_vir_regh = NULL;
1205 	dev_regs->nxge_vir2_regh = NULL;
1206 	nxgep->niu_type = NIU_TYPE_NONE;
1207 
1208 	devname = ddi_pathname(nxgep->dip, buf);
1209 	ASSERT(strlen(devname) > 0);
1210 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1211 	    "nxge_map_regs: pathname devname %s", devname));
1212 
1213 	/*
1214 	 * The driver is running on a N2-NIU system if devname is something
1215 	 * like "/niu@80/network@0"
1216 	 */
1217 	if (strstr(devname, n2_siu_name)) {
1218 		/* N2/NIU */
1219 		nxgep->niu_type = N2_NIU;
1220 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1221 		    "nxge_map_regs: N2/NIU devname %s", devname));
1222 		/*
1223 		 * Get function number:
1224 		 *  - N2/NIU: "/niu@80/network@0" and "/niu@80/network@1"
1225 		 */
1226 		nxgep->function_num =
1227 		    (devname[strlen(devname) -1] == '1' ? 1 : 0);
1228 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1229 		    "nxge_map_regs: N2/NIU function number %d",
1230 		    nxgep->function_num));
1231 	} else {
1232 		int		*prop_val;
1233 		uint_t		prop_len;
1234 		uint8_t		func_num;
1235 
1236 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, nxgep->dip,
1237 		    0, "reg",
1238 		    &prop_val, &prop_len) != DDI_PROP_SUCCESS) {
1239 			NXGE_DEBUG_MSG((nxgep, VPD_CTL,
1240 			    "Reg property not found"));
1241 			ddi_status = DDI_FAILURE;
1242 			goto nxge_map_regs_fail0;
1243 
1244 		} else {
1245 			func_num = (prop_val[0] >> 8) & 0x7;
1246 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1247 			    "Reg property found: fun # %d",
1248 			    func_num));
1249 			nxgep->function_num = func_num;
1250 			if (isLDOMguest(nxgep)) {
1251 				nxgep->function_num /= 2;
1252 				return (NXGE_OK);
1253 			}
1254 			ddi_prop_free(prop_val);
1255 		}
1256 	}
1257 
1258 	switch (nxgep->niu_type) {
1259 	default:
1260 		(void) ddi_dev_regsize(nxgep->dip, 0, &regsize);
1261 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1262 		    "nxge_map_regs: pci config size 0x%x", regsize));
1263 
1264 		ddi_status = ddi_regs_map_setup(nxgep->dip, 0,
1265 		    (caddr_t *)&(dev_regs->nxge_pciregp), 0, 0,
1266 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_pciregh);
1267 		if (ddi_status != DDI_SUCCESS) {
1268 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1269 			    "ddi_map_regs, nxge bus config regs failed"));
1270 			goto nxge_map_regs_fail0;
1271 		}
1272 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1273 		    "nxge_map_reg: PCI config addr 0x%0llx "
1274 		    " handle 0x%0llx", dev_regs->nxge_pciregp,
1275 		    dev_regs->nxge_pciregh));
1276 			/*
1277 			 * IMP IMP
1278 			 * workaround  for bit swapping bug in HW
1279 			 * which ends up in no-snoop = yes
1280 			 * resulting, in DMA not synched properly
1281 			 */
1282 #if !defined(_BIG_ENDIAN)
1283 		/* workarounds for x86 systems */
1284 		pci_offset = 0x80 + PCIE_DEVCTL;
1285 		pcie_devctl = pci_config_get16(dev_regs->nxge_pciregh,
1286 		    pci_offset);
1287 		pcie_devctl &= ~PCIE_DEVCTL_ENABLE_NO_SNOOP;
1288 		pcie_devctl |= PCIE_DEVCTL_RO_EN;
1289 		pci_config_put16(dev_regs->nxge_pciregh, pci_offset,
1290 		    pcie_devctl);
1291 #endif
1292 
1293 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1294 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1295 		    "nxge_map_regs: pio size 0x%x", regsize));
1296 		/* set up the device mapped register */
1297 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1298 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1299 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1300 		if (ddi_status != DDI_SUCCESS) {
1301 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1302 			    "ddi_map_regs for Neptune global reg failed"));
1303 			goto nxge_map_regs_fail1;
1304 		}
1305 
1306 		/* set up the msi/msi-x mapped register */
1307 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1308 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1309 		    "nxge_map_regs: msix size 0x%x", regsize));
1310 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1311 		    (caddr_t *)&(dev_regs->nxge_msix_regp), 0, 0,
1312 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_msix_regh);
1313 		if (ddi_status != DDI_SUCCESS) {
1314 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1315 			    "ddi_map_regs for msi reg failed"));
1316 			goto nxge_map_regs_fail2;
1317 		}
1318 
1319 		/* set up the vio region mapped register */
1320 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1321 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1322 		    "nxge_map_regs: vio size 0x%x", regsize));
1323 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1324 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1325 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1326 
1327 		if (ddi_status != DDI_SUCCESS) {
1328 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1329 			    "ddi_map_regs for nxge vio reg failed"));
1330 			goto nxge_map_regs_fail3;
1331 		}
1332 		nxgep->dev_regs = dev_regs;
1333 
1334 		NPI_PCI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_pciregh);
1335 		NPI_PCI_ADD_HANDLE_SET(nxgep,
1336 		    (npi_reg_ptr_t)dev_regs->nxge_pciregp);
1337 		NPI_MSI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_msix_regh);
1338 		NPI_MSI_ADD_HANDLE_SET(nxgep,
1339 		    (npi_reg_ptr_t)dev_regs->nxge_msix_regp);
1340 
1341 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1342 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1343 
1344 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1345 		NPI_REG_ADD_HANDLE_SET(nxgep,
1346 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1347 
1348 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1349 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1350 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1351 
1352 		break;
1353 
1354 	case N2_NIU:
1355 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "ddi_map_regs, NIU"));
1356 		/*
1357 		 * Set up the device mapped register (FWARC 2006/556)
1358 		 * (changed back to 1: reg starts at 1!)
1359 		 */
1360 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1361 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1362 		    "nxge_map_regs: dev size 0x%x", regsize));
1363 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1364 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1365 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1366 
1367 		if (ddi_status != DDI_SUCCESS) {
1368 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1369 			    "ddi_map_regs for N2/NIU, global reg failed "));
1370 			goto nxge_map_regs_fail1;
1371 		}
1372 
1373 		/* set up the first vio region mapped register */
1374 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1375 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1376 		    "nxge_map_regs: vio (1) size 0x%x", regsize));
1377 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1378 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1379 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1380 
1381 		if (ddi_status != DDI_SUCCESS) {
1382 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1383 			    "ddi_map_regs for nxge vio reg failed"));
1384 			goto nxge_map_regs_fail2;
1385 		}
1386 		/* set up the second vio region mapped register */
1387 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1388 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1389 		    "nxge_map_regs: vio (3) size 0x%x", regsize));
1390 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1391 		    (caddr_t *)&(dev_regs->nxge_vir2_regp), 0, 0,
1392 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir2_regh);
1393 
1394 		if (ddi_status != DDI_SUCCESS) {
1395 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1396 			    "ddi_map_regs for nxge vio2 reg failed"));
1397 			goto nxge_map_regs_fail3;
1398 		}
1399 		nxgep->dev_regs = dev_regs;
1400 
1401 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1402 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1403 
1404 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1405 		NPI_REG_ADD_HANDLE_SET(nxgep,
1406 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1407 
1408 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1409 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1410 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1411 
1412 		NPI_V2REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir2_regh);
1413 		NPI_V2REG_ADD_HANDLE_SET(nxgep,
1414 		    (npi_reg_ptr_t)dev_regs->nxge_vir2_regp);
1415 
1416 		break;
1417 	}
1418 
1419 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "nxge_map_reg: hardware addr 0x%0llx "
1420 	    " handle 0x%0llx", dev_regs->nxge_regp, dev_regs->nxge_regh));
1421 
1422 	goto nxge_map_regs_exit;
1423 nxge_map_regs_fail3:
1424 	if (dev_regs->nxge_msix_regh) {
1425 		ddi_regs_map_free(&dev_regs->nxge_msix_regh);
1426 	}
1427 	if (dev_regs->nxge_vir_regh) {
1428 		ddi_regs_map_free(&dev_regs->nxge_regh);
1429 	}
1430 nxge_map_regs_fail2:
1431 	if (dev_regs->nxge_regh) {
1432 		ddi_regs_map_free(&dev_regs->nxge_regh);
1433 	}
1434 nxge_map_regs_fail1:
1435 	if (dev_regs->nxge_pciregh) {
1436 		ddi_regs_map_free(&dev_regs->nxge_pciregh);
1437 	}
1438 nxge_map_regs_fail0:
1439 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Freeing register set memory"));
1440 	kmem_free(dev_regs, sizeof (dev_regs_t));
1441 
1442 nxge_map_regs_exit:
1443 	if (ddi_status != DDI_SUCCESS)
1444 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1445 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_map_regs"));
1446 	return (status);
1447 }
1448 
1449 static void
1450 nxge_unmap_regs(p_nxge_t nxgep)
1451 {
1452 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unmap_regs"));
1453 
1454 	if (isLDOMguest(nxgep)) {
1455 		nxge_guest_regs_map_free(nxgep);
1456 		return;
1457 	}
1458 
1459 	if (nxgep->dev_regs) {
1460 		if (nxgep->dev_regs->nxge_pciregh) {
1461 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1462 			    "==> nxge_unmap_regs: bus"));
1463 			ddi_regs_map_free(&nxgep->dev_regs->nxge_pciregh);
1464 			nxgep->dev_regs->nxge_pciregh = NULL;
1465 		}
1466 		if (nxgep->dev_regs->nxge_regh) {
1467 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1468 			    "==> nxge_unmap_regs: device registers"));
1469 			ddi_regs_map_free(&nxgep->dev_regs->nxge_regh);
1470 			nxgep->dev_regs->nxge_regh = NULL;
1471 		}
1472 		if (nxgep->dev_regs->nxge_msix_regh) {
1473 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1474 			    "==> nxge_unmap_regs: device interrupts"));
1475 			ddi_regs_map_free(&nxgep->dev_regs->nxge_msix_regh);
1476 			nxgep->dev_regs->nxge_msix_regh = NULL;
1477 		}
1478 		if (nxgep->dev_regs->nxge_vir_regh) {
1479 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1480 			    "==> nxge_unmap_regs: vio region"));
1481 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir_regh);
1482 			nxgep->dev_regs->nxge_vir_regh = NULL;
1483 		}
1484 		if (nxgep->dev_regs->nxge_vir2_regh) {
1485 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1486 			    "==> nxge_unmap_regs: vio2 region"));
1487 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir2_regh);
1488 			nxgep->dev_regs->nxge_vir2_regh = NULL;
1489 		}
1490 
1491 		kmem_free(nxgep->dev_regs, sizeof (dev_regs_t));
1492 		nxgep->dev_regs = NULL;
1493 	}
1494 
1495 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_unmap_regs"));
1496 }
1497 
1498 static nxge_status_t
1499 nxge_setup_mutexes(p_nxge_t nxgep)
1500 {
1501 	int ddi_status = DDI_SUCCESS;
1502 	nxge_status_t status = NXGE_OK;
1503 	nxge_classify_t *classify_ptr;
1504 	int partition;
1505 
1506 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_mutexes"));
1507 
1508 	/*
1509 	 * Get the interrupt cookie so the mutexes can be
1510 	 * Initialized.
1511 	 */
1512 	if (isLDOMguest(nxgep)) {
1513 		nxgep->interrupt_cookie = 0;
1514 	} else {
1515 		ddi_status = ddi_get_iblock_cookie(nxgep->dip, 0,
1516 		    &nxgep->interrupt_cookie);
1517 
1518 		if (ddi_status != DDI_SUCCESS) {
1519 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1520 			    "<== nxge_setup_mutexes: failed 0x%x",
1521 			    ddi_status));
1522 			goto nxge_setup_mutexes_exit;
1523 		}
1524 	}
1525 
1526 	cv_init(&nxgep->poll_cv, NULL, CV_DRIVER, NULL);
1527 	MUTEX_INIT(&nxgep->poll_lock, NULL,
1528 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1529 
1530 	/*
1531 	 * Initialize mutexes for this device.
1532 	 */
1533 	MUTEX_INIT(nxgep->genlock, NULL,
1534 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1535 	MUTEX_INIT(&nxgep->ouraddr_lock, NULL,
1536 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1537 	MUTEX_INIT(&nxgep->mif_lock, NULL,
1538 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1539 	MUTEX_INIT(&nxgep->group_lock, NULL,
1540 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1541 	RW_INIT(&nxgep->filter_lock, NULL,
1542 	    RW_DRIVER, (void *)nxgep->interrupt_cookie);
1543 
1544 	classify_ptr = &nxgep->classifier;
1545 		/*
1546 		 * FFLP Mutexes are never used in interrupt context
1547 		 * as fflp operation can take very long time to
1548 		 * complete and hence not suitable to invoke from interrupt
1549 		 * handlers.
1550 		 */
1551 	MUTEX_INIT(&classify_ptr->tcam_lock, NULL,
1552 	    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1553 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1554 		MUTEX_INIT(&classify_ptr->fcram_lock, NULL,
1555 		    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1556 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1557 			MUTEX_INIT(&classify_ptr->hash_lock[partition], NULL,
1558 			    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1559 		}
1560 	}
1561 
1562 nxge_setup_mutexes_exit:
1563 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1564 	    "<== nxge_setup_mutexes status = %x", status));
1565 
1566 	if (ddi_status != DDI_SUCCESS)
1567 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1568 
1569 	return (status);
1570 }
1571 
1572 static void
1573 nxge_destroy_mutexes(p_nxge_t nxgep)
1574 {
1575 	int partition;
1576 	nxge_classify_t *classify_ptr;
1577 
1578 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_mutexes"));
1579 	RW_DESTROY(&nxgep->filter_lock);
1580 	MUTEX_DESTROY(&nxgep->group_lock);
1581 	MUTEX_DESTROY(&nxgep->mif_lock);
1582 	MUTEX_DESTROY(&nxgep->ouraddr_lock);
1583 	MUTEX_DESTROY(nxgep->genlock);
1584 
1585 	classify_ptr = &nxgep->classifier;
1586 	MUTEX_DESTROY(&classify_ptr->tcam_lock);
1587 
1588 	/* Destroy all polling resources. */
1589 	MUTEX_DESTROY(&nxgep->poll_lock);
1590 	cv_destroy(&nxgep->poll_cv);
1591 
1592 	/* free data structures, based on HW type */
1593 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1594 		MUTEX_DESTROY(&classify_ptr->fcram_lock);
1595 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1596 			MUTEX_DESTROY(&classify_ptr->hash_lock[partition]);
1597 		}
1598 	}
1599 
1600 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_mutexes"));
1601 }
1602 
1603 nxge_status_t
1604 nxge_init(p_nxge_t nxgep)
1605 {
1606 	nxge_status_t status = NXGE_OK;
1607 
1608 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_init"));
1609 
1610 	if (nxgep->drv_state & STATE_HW_INITIALIZED) {
1611 		return (status);
1612 	}
1613 
1614 	/*
1615 	 * Allocate system memory for the receive/transmit buffer blocks
1616 	 * and receive/transmit descriptor rings.
1617 	 */
1618 	status = nxge_alloc_mem_pool(nxgep);
1619 	if (status != NXGE_OK) {
1620 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "alloc mem failed\n"));
1621 		goto nxge_init_fail1;
1622 	}
1623 
1624 	if (!isLDOMguest(nxgep)) {
1625 		/*
1626 		 * Initialize and enable the TXC registers.
1627 		 * (Globally enable the Tx controller,
1628 		 *  enable the port, configure the dma channel bitmap,
1629 		 *  configure the max burst size).
1630 		 */
1631 		status = nxge_txc_init(nxgep);
1632 		if (status != NXGE_OK) {
1633 			NXGE_ERROR_MSG((nxgep,
1634 			    NXGE_ERR_CTL, "init txc failed\n"));
1635 			goto nxge_init_fail2;
1636 		}
1637 	}
1638 
1639 	/*
1640 	 * Initialize and enable TXDMA channels.
1641 	 */
1642 	status = nxge_init_txdma_channels(nxgep);
1643 	if (status != NXGE_OK) {
1644 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init txdma failed\n"));
1645 		goto nxge_init_fail3;
1646 	}
1647 
1648 	/*
1649 	 * Initialize and enable RXDMA channels.
1650 	 */
1651 	status = nxge_init_rxdma_channels(nxgep);
1652 	if (status != NXGE_OK) {
1653 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init rxdma failed\n"));
1654 		goto nxge_init_fail4;
1655 	}
1656 
1657 	/*
1658 	 * The guest domain is now done.
1659 	 */
1660 	if (isLDOMguest(nxgep)) {
1661 		nxgep->drv_state |= STATE_HW_INITIALIZED;
1662 		goto nxge_init_exit;
1663 	}
1664 
1665 	/*
1666 	 * Initialize TCAM and FCRAM (Neptune).
1667 	 */
1668 	status = nxge_classify_init(nxgep);
1669 	if (status != NXGE_OK) {
1670 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init classify failed\n"));
1671 		goto nxge_init_fail5;
1672 	}
1673 
1674 	/*
1675 	 * Initialize ZCP
1676 	 */
1677 	status = nxge_zcp_init(nxgep);
1678 	if (status != NXGE_OK) {
1679 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init ZCP failed\n"));
1680 		goto nxge_init_fail5;
1681 	}
1682 
1683 	/*
1684 	 * Initialize IPP.
1685 	 */
1686 	status = nxge_ipp_init(nxgep);
1687 	if (status != NXGE_OK) {
1688 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init IPP failed\n"));
1689 		goto nxge_init_fail5;
1690 	}
1691 
1692 	/*
1693 	 * Initialize the MAC block.
1694 	 */
1695 	status = nxge_mac_init(nxgep);
1696 	if (status != NXGE_OK) {
1697 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init MAC failed\n"));
1698 		goto nxge_init_fail5;
1699 	}
1700 
1701 	/*
1702 	 * Enable the interrrupts for DDI.
1703 	 */
1704 	nxge_intrs_enable(nxgep);
1705 
1706 	nxgep->drv_state |= STATE_HW_INITIALIZED;
1707 
1708 	goto nxge_init_exit;
1709 
1710 nxge_init_fail5:
1711 	nxge_uninit_rxdma_channels(nxgep);
1712 nxge_init_fail4:
1713 	nxge_uninit_txdma_channels(nxgep);
1714 nxge_init_fail3:
1715 	if (!isLDOMguest(nxgep)) {
1716 		(void) nxge_txc_uninit(nxgep);
1717 	}
1718 nxge_init_fail2:
1719 	nxge_free_mem_pool(nxgep);
1720 nxge_init_fail1:
1721 	NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1722 	    "<== nxge_init status (failed) = 0x%08x", status));
1723 	return (status);
1724 
1725 nxge_init_exit:
1726 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_init status = 0x%08x",
1727 	    status));
1728 	return (status);
1729 }
1730 
1731 
1732 timeout_id_t
1733 nxge_start_timer(p_nxge_t nxgep, fptrv_t func, int msec)
1734 {
1735 	if ((nxgep->suspended == 0) || (nxgep->suspended == DDI_RESUME)) {
1736 		return (timeout(func, (caddr_t)nxgep,
1737 		    drv_usectohz(1000 * msec)));
1738 	}
1739 	return (NULL);
1740 }
1741 
1742 /*ARGSUSED*/
1743 void
1744 nxge_stop_timer(p_nxge_t nxgep, timeout_id_t timerid)
1745 {
1746 	if (timerid) {
1747 		(void) untimeout(timerid);
1748 	}
1749 }
1750 
1751 void
1752 nxge_uninit(p_nxge_t nxgep)
1753 {
1754 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_uninit"));
1755 
1756 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
1757 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1758 		    "==> nxge_uninit: not initialized"));
1759 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1760 		    "<== nxge_uninit"));
1761 		return;
1762 	}
1763 
1764 	if (!isLDOMguest(nxgep)) {
1765 		/*
1766 		 * Reset the receive MAC side.
1767 		 */
1768 		(void) nxge_rx_mac_disable(nxgep);
1769 
1770 		/*
1771 		 * Drain the IPP.
1772 		 */
1773 		(void) nxge_ipp_drain(nxgep);
1774 	}
1775 
1776 	/* stop timer */
1777 	if (nxgep->nxge_timerid) {
1778 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1779 		nxgep->nxge_timerid = 0;
1780 	}
1781 
1782 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
1783 	(void) nxge_intr_hw_disable(nxgep);
1784 
1785 
1786 	/* Disable and soft reset the IPP */
1787 	if (!isLDOMguest(nxgep))
1788 		(void) nxge_ipp_disable(nxgep);
1789 
1790 	/* Free classification resources */
1791 	(void) nxge_classify_uninit(nxgep);
1792 
1793 	/*
1794 	 * Reset the transmit/receive DMA side.
1795 	 */
1796 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
1797 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
1798 
1799 	nxge_uninit_txdma_channels(nxgep);
1800 	nxge_uninit_rxdma_channels(nxgep);
1801 
1802 	/*
1803 	 * Reset the transmit MAC side.
1804 	 */
1805 	(void) nxge_tx_mac_disable(nxgep);
1806 
1807 	nxge_free_mem_pool(nxgep);
1808 
1809 	/*
1810 	 * Start the timer if the reset flag is not set.
1811 	 * If this reset flag is set, the link monitor
1812 	 * will not be started in order to stop furthur bus
1813 	 * activities coming from this interface.
1814 	 * The driver will start the monitor function
1815 	 * if the interface was initialized again later.
1816 	 */
1817 	if (!nxge_peu_reset_enable) {
1818 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1819 	}
1820 
1821 	nxgep->drv_state &= ~STATE_HW_INITIALIZED;
1822 
1823 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_uninit: "
1824 	    "nxge_mblks_pending %d", nxge_mblks_pending));
1825 }
1826 
1827 void
1828 nxge_get64(p_nxge_t nxgep, p_mblk_t mp)
1829 {
1830 	uint64_t	reg;
1831 	uint64_t	regdata;
1832 	int		i, retry;
1833 
1834 	bcopy((char *)mp->b_rptr, (char *)&reg, sizeof (uint64_t));
1835 	regdata = 0;
1836 	retry = 1;
1837 
1838 	for (i = 0; i < retry; i++) {
1839 		NXGE_REG_RD64(nxgep->npi_handle, reg, &regdata);
1840 	}
1841 	bcopy((char *)&regdata, (char *)mp->b_rptr, sizeof (uint64_t));
1842 }
1843 
1844 void
1845 nxge_put64(p_nxge_t nxgep, p_mblk_t mp)
1846 {
1847 	uint64_t	reg;
1848 	uint64_t	buf[2];
1849 
1850 	bcopy((char *)mp->b_rptr, (char *)&buf[0], 2 * sizeof (uint64_t));
1851 	reg = buf[0];
1852 
1853 	NXGE_NPI_PIO_WRITE64(nxgep->npi_handle, reg, buf[1]);
1854 }
1855 
1856 /*ARGSUSED*/
1857 /*VARARGS*/
1858 void
1859 nxge_debug_msg(p_nxge_t nxgep, uint64_t level, char *fmt, ...)
1860 {
1861 	char msg_buffer[1048];
1862 	char prefix_buffer[32];
1863 	int instance;
1864 	uint64_t debug_level;
1865 	int cmn_level = CE_CONT;
1866 	va_list ap;
1867 
1868 	if (nxgep && nxgep->nxge_debug_level != nxge_debug_level) {
1869 		/* In case a developer has changed nxge_debug_level. */
1870 		if (nxgep->nxge_debug_level != nxge_debug_level)
1871 			nxgep->nxge_debug_level = nxge_debug_level;
1872 	}
1873 
1874 	debug_level = (nxgep == NULL) ? nxge_debug_level :
1875 	    nxgep->nxge_debug_level;
1876 
1877 	if ((level & debug_level) ||
1878 	    (level == NXGE_NOTE) ||
1879 	    (level == NXGE_ERR_CTL)) {
1880 		/* do the msg processing */
1881 		MUTEX_ENTER(&nxgedebuglock);
1882 
1883 		if ((level & NXGE_NOTE)) {
1884 			cmn_level = CE_NOTE;
1885 		}
1886 
1887 		if (level & NXGE_ERR_CTL) {
1888 			cmn_level = CE_WARN;
1889 		}
1890 
1891 		va_start(ap, fmt);
1892 		(void) vsprintf(msg_buffer, fmt, ap);
1893 		va_end(ap);
1894 		if (nxgep == NULL) {
1895 			instance = -1;
1896 			(void) sprintf(prefix_buffer, "%s :", "nxge");
1897 		} else {
1898 			instance = nxgep->instance;
1899 			(void) sprintf(prefix_buffer,
1900 			    "%s%d :", "nxge", instance);
1901 		}
1902 
1903 		MUTEX_EXIT(&nxgedebuglock);
1904 		cmn_err(cmn_level, "!%s %s\n",
1905 		    prefix_buffer, msg_buffer);
1906 
1907 	}
1908 }
1909 
1910 char *
1911 nxge_dump_packet(char *addr, int size)
1912 {
1913 	uchar_t *ap = (uchar_t *)addr;
1914 	int i;
1915 	static char etherbuf[1024];
1916 	char *cp = etherbuf;
1917 	char digits[] = "0123456789abcdef";
1918 
1919 	if (!size)
1920 		size = 60;
1921 
1922 	if (size > MAX_DUMP_SZ) {
1923 		/* Dump the leading bytes */
1924 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1925 			if (*ap > 0x0f)
1926 				*cp++ = digits[*ap >> 4];
1927 			*cp++ = digits[*ap++ & 0xf];
1928 			*cp++ = ':';
1929 		}
1930 		for (i = 0; i < 20; i++)
1931 			*cp++ = '.';
1932 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1933 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ/2));
1934 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1935 			if (*ap > 0x0f)
1936 				*cp++ = digits[*ap >> 4];
1937 			*cp++ = digits[*ap++ & 0xf];
1938 			*cp++ = ':';
1939 		}
1940 	} else {
1941 		for (i = 0; i < size; i++) {
1942 			if (*ap > 0x0f)
1943 				*cp++ = digits[*ap >> 4];
1944 			*cp++ = digits[*ap++ & 0xf];
1945 			*cp++ = ':';
1946 		}
1947 	}
1948 	*--cp = 0;
1949 	return (etherbuf);
1950 }
1951 
1952 #ifdef	NXGE_DEBUG
1953 static void
1954 nxge_test_map_regs(p_nxge_t nxgep)
1955 {
1956 	ddi_acc_handle_t cfg_handle;
1957 	p_pci_cfg_t	cfg_ptr;
1958 	ddi_acc_handle_t dev_handle;
1959 	char		*dev_ptr;
1960 	ddi_acc_handle_t pci_config_handle;
1961 	uint32_t	regval;
1962 	int		i;
1963 
1964 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_test_map_regs"));
1965 
1966 	dev_handle = nxgep->dev_regs->nxge_regh;
1967 	dev_ptr = (char *)nxgep->dev_regs->nxge_regp;
1968 
1969 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1970 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1971 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1972 
1973 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1974 		    "Neptune PCI regp cfg_ptr 0x%llx", (char *)cfg_ptr));
1975 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1976 		    "Neptune PCI cfg_ptr vendor id ptr 0x%llx",
1977 		    &cfg_ptr->vendorid));
1978 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1979 		    "\tvendorid 0x%x devid 0x%x",
1980 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->vendorid, 0),
1981 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->devid,    0)));
1982 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1983 		    "PCI BAR: base 0x%x base14 0x%x base 18 0x%x "
1984 		    "bar1c 0x%x",
1985 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base,	  0),
1986 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base14, 0),
1987 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base18, 0),
1988 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base1c, 0)));
1989 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1990 		    "\nNeptune PCI BAR: base20 0x%x base24 0x%x "
1991 		    "base 28 0x%x bar2c 0x%x\n",
1992 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base20, 0),
1993 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base24, 0),
1994 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base28, 0),
1995 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base2c, 0)));
1996 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1997 		    "\nNeptune PCI BAR: base30 0x%x\n",
1998 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base30, 0)));
1999 
2000 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
2001 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
2002 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2003 		    "first  0x%llx second 0x%llx third 0x%llx "
2004 		    "last 0x%llx ",
2005 		    NXGE_PIO_READ64(dev_handle,
2006 		    (uint64_t *)(dev_ptr + 0),	0),
2007 		    NXGE_PIO_READ64(dev_handle,
2008 		    (uint64_t *)(dev_ptr + 8),	0),
2009 		    NXGE_PIO_READ64(dev_handle,
2010 		    (uint64_t *)(dev_ptr + 16), 0),
2011 		    NXGE_PIO_READ64(cfg_handle,
2012 		    (uint64_t *)(dev_ptr + 24), 0)));
2013 	}
2014 }
2015 
2016 #endif
2017 
2018 static void
2019 nxge_suspend(p_nxge_t nxgep)
2020 {
2021 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_suspend"));
2022 
2023 	nxge_intrs_disable(nxgep);
2024 	nxge_destroy_dev(nxgep);
2025 
2026 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_suspend"));
2027 }
2028 
2029 static nxge_status_t
2030 nxge_resume(p_nxge_t nxgep)
2031 {
2032 	nxge_status_t status = NXGE_OK;
2033 
2034 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_resume"));
2035 
2036 	nxgep->suspended = DDI_RESUME;
2037 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
2038 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_START);
2039 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_START);
2040 	(void) nxge_rx_mac_enable(nxgep);
2041 	(void) nxge_tx_mac_enable(nxgep);
2042 	nxge_intrs_enable(nxgep);
2043 	nxgep->suspended = 0;
2044 
2045 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2046 	    "<== nxge_resume status = 0x%x", status));
2047 	return (status);
2048 }
2049 
2050 static nxge_status_t
2051 nxge_setup_dev(p_nxge_t nxgep)
2052 {
2053 	nxge_status_t	status = NXGE_OK;
2054 
2055 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_dev port %d",
2056 	    nxgep->mac.portnum));
2057 
2058 	status = nxge_link_init(nxgep);
2059 
2060 	if (fm_check_acc_handle(nxgep->dev_regs->nxge_regh) != DDI_FM_OK) {
2061 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2062 		    "port%d Bad register acc handle", nxgep->mac.portnum));
2063 		status = NXGE_ERROR;
2064 	}
2065 
2066 	if (status != NXGE_OK) {
2067 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2068 		    " nxge_setup_dev status "
2069 		    "(xcvr init 0x%08x)", status));
2070 		goto nxge_setup_dev_exit;
2071 	}
2072 
2073 nxge_setup_dev_exit:
2074 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2075 	    "<== nxge_setup_dev port %d status = 0x%08x",
2076 	    nxgep->mac.portnum, status));
2077 
2078 	return (status);
2079 }
2080 
2081 static void
2082 nxge_destroy_dev(p_nxge_t nxgep)
2083 {
2084 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_dev"));
2085 
2086 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
2087 
2088 	(void) nxge_hw_stop(nxgep);
2089 
2090 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_dev"));
2091 }
2092 
2093 static nxge_status_t
2094 nxge_setup_system_dma_pages(p_nxge_t nxgep)
2095 {
2096 	int			ddi_status = DDI_SUCCESS;
2097 	uint_t			count;
2098 	ddi_dma_cookie_t	cookie;
2099 	uint_t			iommu_pagesize;
2100 	nxge_status_t		status = NXGE_OK;
2101 
2102 	NXGE_ERROR_MSG((nxgep, DDI_CTL, "==> nxge_setup_system_dma_pages"));
2103 	nxgep->sys_page_sz = ddi_ptob(nxgep->dip, (ulong_t)1);
2104 	if (nxgep->niu_type != N2_NIU) {
2105 		iommu_pagesize = dvma_pagesize(nxgep->dip);
2106 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2107 		    " nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2108 		    " default_block_size %d iommu_pagesize %d",
2109 		    nxgep->sys_page_sz,
2110 		    ddi_ptob(nxgep->dip, (ulong_t)1),
2111 		    nxgep->rx_default_block_size,
2112 		    iommu_pagesize));
2113 
2114 		if (iommu_pagesize != 0) {
2115 			if (nxgep->sys_page_sz == iommu_pagesize) {
2116 				if (iommu_pagesize > 0x4000)
2117 					nxgep->sys_page_sz = 0x4000;
2118 			} else {
2119 				if (nxgep->sys_page_sz > iommu_pagesize)
2120 					nxgep->sys_page_sz = iommu_pagesize;
2121 			}
2122 		}
2123 	}
2124 	nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2125 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2126 	    "==> nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2127 	    "default_block_size %d page mask %d",
2128 	    nxgep->sys_page_sz,
2129 	    ddi_ptob(nxgep->dip, (ulong_t)1),
2130 	    nxgep->rx_default_block_size,
2131 	    nxgep->sys_page_mask));
2132 
2133 
2134 	switch (nxgep->sys_page_sz) {
2135 	default:
2136 		nxgep->sys_page_sz = 0x1000;
2137 		nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2138 		nxgep->rx_default_block_size = 0x1000;
2139 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2140 		break;
2141 	case 0x1000:
2142 		nxgep->rx_default_block_size = 0x1000;
2143 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2144 		break;
2145 	case 0x2000:
2146 		nxgep->rx_default_block_size = 0x2000;
2147 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2148 		break;
2149 	case 0x4000:
2150 		nxgep->rx_default_block_size = 0x4000;
2151 		nxgep->rx_bksize_code = RBR_BKSIZE_16K;
2152 		break;
2153 	case 0x8000:
2154 		nxgep->rx_default_block_size = 0x8000;
2155 		nxgep->rx_bksize_code = RBR_BKSIZE_32K;
2156 		break;
2157 	}
2158 
2159 #ifndef USE_RX_BIG_BUF
2160 	nxge_rx_dma_attr.dma_attr_align = nxgep->sys_page_sz;
2161 #else
2162 		nxgep->rx_default_block_size = 0x2000;
2163 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2164 #endif
2165 	/*
2166 	 * Get the system DMA burst size.
2167 	 */
2168 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, &nxge_tx_dma_attr,
2169 	    DDI_DMA_DONTWAIT, 0,
2170 	    &nxgep->dmasparehandle);
2171 	if (ddi_status != DDI_SUCCESS) {
2172 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2173 		    "ddi_dma_alloc_handle: failed "
2174 		    " status 0x%x", ddi_status));
2175 		goto nxge_get_soft_properties_exit;
2176 	}
2177 
2178 	ddi_status = ddi_dma_addr_bind_handle(nxgep->dmasparehandle, NULL,
2179 	    (caddr_t)nxgep->dmasparehandle,
2180 	    sizeof (nxgep->dmasparehandle),
2181 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2182 	    DDI_DMA_DONTWAIT, 0,
2183 	    &cookie, &count);
2184 	if (ddi_status != DDI_DMA_MAPPED) {
2185 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2186 		    "Binding spare handle to find system"
2187 		    " burstsize failed."));
2188 		ddi_status = DDI_FAILURE;
2189 		goto nxge_get_soft_properties_fail1;
2190 	}
2191 
2192 	nxgep->sys_burst_sz = ddi_dma_burstsizes(nxgep->dmasparehandle);
2193 	(void) ddi_dma_unbind_handle(nxgep->dmasparehandle);
2194 
2195 nxge_get_soft_properties_fail1:
2196 	ddi_dma_free_handle(&nxgep->dmasparehandle);
2197 
2198 nxge_get_soft_properties_exit:
2199 
2200 	if (ddi_status != DDI_SUCCESS)
2201 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2202 
2203 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2204 	    "<== nxge_setup_system_dma_pages status = 0x%08x", status));
2205 	return (status);
2206 }
2207 
2208 static nxge_status_t
2209 nxge_alloc_mem_pool(p_nxge_t nxgep)
2210 {
2211 	nxge_status_t	status = NXGE_OK;
2212 
2213 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_alloc_mem_pool"));
2214 
2215 	status = nxge_alloc_rx_mem_pool(nxgep);
2216 	if (status != NXGE_OK) {
2217 		return (NXGE_ERROR);
2218 	}
2219 
2220 	status = nxge_alloc_tx_mem_pool(nxgep);
2221 	if (status != NXGE_OK) {
2222 		nxge_free_rx_mem_pool(nxgep);
2223 		return (NXGE_ERROR);
2224 	}
2225 
2226 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_alloc_mem_pool"));
2227 	return (NXGE_OK);
2228 }
2229 
2230 static void
2231 nxge_free_mem_pool(p_nxge_t nxgep)
2232 {
2233 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_mem_pool"));
2234 
2235 	nxge_free_rx_mem_pool(nxgep);
2236 	nxge_free_tx_mem_pool(nxgep);
2237 
2238 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_mem_pool"));
2239 }
2240 
2241 nxge_status_t
2242 nxge_alloc_rx_mem_pool(p_nxge_t nxgep)
2243 {
2244 	uint32_t		rdc_max;
2245 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
2246 	p_nxge_hw_pt_cfg_t	p_cfgp;
2247 	p_nxge_dma_pool_t	dma_poolp;
2248 	p_nxge_dma_common_t	*dma_buf_p;
2249 	p_nxge_dma_pool_t	dma_cntl_poolp;
2250 	p_nxge_dma_common_t	*dma_cntl_p;
2251 	uint32_t		*num_chunks; /* per dma */
2252 	nxge_status_t		status = NXGE_OK;
2253 
2254 	uint32_t		nxge_port_rbr_size;
2255 	uint32_t		nxge_port_rbr_spare_size;
2256 	uint32_t		nxge_port_rcr_size;
2257 	uint32_t		rx_cntl_alloc_size;
2258 
2259 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_mem_pool"));
2260 
2261 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
2262 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
2263 	rdc_max = NXGE_MAX_RDCS;
2264 
2265 	/*
2266 	 * Allocate memory for the common DMA data structures.
2267 	 */
2268 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2269 	    KM_SLEEP);
2270 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2271 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2272 
2273 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2274 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2275 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2276 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2277 
2278 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2279 	    sizeof (uint32_t) * rdc_max, KM_SLEEP);
2280 
2281 	/*
2282 	 * Assume that each DMA channel will be configured with
2283 	 * the default block size.
2284 	 * rbr block counts are modulo the batch count (16).
2285 	 */
2286 	nxge_port_rbr_size = p_all_cfgp->rbr_size;
2287 	nxge_port_rcr_size = p_all_cfgp->rcr_size;
2288 
2289 	if (!nxge_port_rbr_size) {
2290 		nxge_port_rbr_size = NXGE_RBR_RBB_DEFAULT;
2291 	}
2292 	if (nxge_port_rbr_size % NXGE_RXDMA_POST_BATCH) {
2293 		nxge_port_rbr_size = (NXGE_RXDMA_POST_BATCH *
2294 		    (nxge_port_rbr_size / NXGE_RXDMA_POST_BATCH + 1));
2295 	}
2296 
2297 	p_all_cfgp->rbr_size = nxge_port_rbr_size;
2298 	nxge_port_rbr_spare_size = nxge_rbr_spare_size;
2299 
2300 	if (nxge_port_rbr_spare_size % NXGE_RXDMA_POST_BATCH) {
2301 		nxge_port_rbr_spare_size = (NXGE_RXDMA_POST_BATCH *
2302 		    (nxge_port_rbr_spare_size / NXGE_RXDMA_POST_BATCH + 1));
2303 	}
2304 	if (nxge_port_rbr_size > RBR_DEFAULT_MAX_BLKS) {
2305 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2306 		    "nxge_alloc_rx_mem_pool: RBR size too high %d, "
2307 		    "set to default %d",
2308 		    nxge_port_rbr_size, RBR_DEFAULT_MAX_BLKS));
2309 		nxge_port_rbr_size = RBR_DEFAULT_MAX_BLKS;
2310 	}
2311 	if (nxge_port_rcr_size > RCR_DEFAULT_MAX) {
2312 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2313 		    "nxge_alloc_rx_mem_pool: RCR too high %d, "
2314 		    "set to default %d",
2315 		    nxge_port_rcr_size, RCR_DEFAULT_MAX));
2316 		nxge_port_rcr_size = RCR_DEFAULT_MAX;
2317 	}
2318 
2319 	/*
2320 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2321 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2322 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2323 	 * function).
2324 	 */
2325 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2326 	if (nxgep->niu_type == N2_NIU) {
2327 		nxge_port_rbr_spare_size = 0;
2328 		if ((nxge_port_rbr_size > NXGE_NIU_CONTIG_RBR_MAX) ||
2329 		    (!ISP2(nxge_port_rbr_size))) {
2330 			nxge_port_rbr_size = NXGE_NIU_CONTIG_RBR_MAX;
2331 		}
2332 		if ((nxge_port_rcr_size > NXGE_NIU_CONTIG_RCR_MAX) ||
2333 		    (!ISP2(nxge_port_rcr_size))) {
2334 			nxge_port_rcr_size = NXGE_NIU_CONTIG_RCR_MAX;
2335 		}
2336 	}
2337 #endif
2338 
2339 	/*
2340 	 * Addresses of receive block ring, receive completion ring and the
2341 	 * mailbox must be all cache-aligned (64 bytes).
2342 	 */
2343 	rx_cntl_alloc_size = nxge_port_rbr_size + nxge_port_rbr_spare_size;
2344 	rx_cntl_alloc_size *= (sizeof (rx_desc_t));
2345 	rx_cntl_alloc_size += (sizeof (rcr_entry_t) * nxge_port_rcr_size);
2346 	rx_cntl_alloc_size += sizeof (rxdma_mailbox_t);
2347 
2348 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_alloc_rx_mem_pool: "
2349 	    "nxge_port_rbr_size = %d nxge_port_rbr_spare_size = %d "
2350 	    "nxge_port_rcr_size = %d "
2351 	    "rx_cntl_alloc_size = %d",
2352 	    nxge_port_rbr_size, nxge_port_rbr_spare_size,
2353 	    nxge_port_rcr_size,
2354 	    rx_cntl_alloc_size));
2355 
2356 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2357 	if (nxgep->niu_type == N2_NIU) {
2358 		uint32_t rx_buf_alloc_size = (nxgep->rx_default_block_size *
2359 		    (nxge_port_rbr_size + nxge_port_rbr_spare_size));
2360 
2361 		if (!ISP2(rx_buf_alloc_size)) {
2362 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2363 			    "==> nxge_alloc_rx_mem_pool: "
2364 			    " must be power of 2"));
2365 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2366 			goto nxge_alloc_rx_mem_pool_exit;
2367 		}
2368 
2369 		if (rx_buf_alloc_size > (1 << 22)) {
2370 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2371 			    "==> nxge_alloc_rx_mem_pool: "
2372 			    " limit size to 4M"));
2373 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2374 			goto nxge_alloc_rx_mem_pool_exit;
2375 		}
2376 
2377 		if (rx_cntl_alloc_size < 0x2000) {
2378 			rx_cntl_alloc_size = 0x2000;
2379 		}
2380 	}
2381 #endif
2382 	nxgep->nxge_port_rbr_size = nxge_port_rbr_size;
2383 	nxgep->nxge_port_rcr_size = nxge_port_rcr_size;
2384 	nxgep->nxge_port_rbr_spare_size = nxge_port_rbr_spare_size;
2385 	nxgep->nxge_port_rx_cntl_alloc_size = rx_cntl_alloc_size;
2386 
2387 	dma_poolp->ndmas = p_cfgp->max_rdcs;
2388 	dma_poolp->num_chunks = num_chunks;
2389 	dma_poolp->buf_allocated = B_TRUE;
2390 	nxgep->rx_buf_pool_p = dma_poolp;
2391 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2392 
2393 	dma_cntl_poolp->ndmas = p_cfgp->max_rdcs;
2394 	dma_cntl_poolp->buf_allocated = B_TRUE;
2395 	nxgep->rx_cntl_pool_p = dma_cntl_poolp;
2396 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2397 
2398 	/* Allocate the receive rings, too. */
2399 	nxgep->rx_rbr_rings =
2400 	    KMEM_ZALLOC(sizeof (rx_rbr_rings_t), KM_SLEEP);
2401 	nxgep->rx_rbr_rings->rbr_rings =
2402 	    KMEM_ZALLOC(sizeof (p_rx_rbr_ring_t) * rdc_max, KM_SLEEP);
2403 	nxgep->rx_rcr_rings =
2404 	    KMEM_ZALLOC(sizeof (rx_rcr_rings_t), KM_SLEEP);
2405 	nxgep->rx_rcr_rings->rcr_rings =
2406 	    KMEM_ZALLOC(sizeof (p_rx_rcr_ring_t) * rdc_max, KM_SLEEP);
2407 	nxgep->rx_mbox_areas_p =
2408 	    KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
2409 	nxgep->rx_mbox_areas_p->rxmbox_areas =
2410 	    KMEM_ZALLOC(sizeof (p_rx_mbox_t) * rdc_max, KM_SLEEP);
2411 
2412 	nxgep->rx_rbr_rings->ndmas = nxgep->rx_rcr_rings->ndmas =
2413 	    p_cfgp->max_rdcs;
2414 
2415 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2416 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2417 
2418 nxge_alloc_rx_mem_pool_exit:
2419 	return (status);
2420 }
2421 
2422 /*
2423  * nxge_alloc_rxb
2424  *
2425  *	Allocate buffers for an RDC.
2426  *
2427  * Arguments:
2428  *	nxgep
2429  *	channel	The channel to map into our kernel space.
2430  *
2431  * Notes:
2432  *
2433  * NPI function calls:
2434  *
2435  * NXGE function calls:
2436  *
2437  * Registers accessed:
2438  *
2439  * Context:
2440  *
2441  * Taking apart:
2442  *
2443  * Open questions:
2444  *
2445  */
2446 nxge_status_t
2447 nxge_alloc_rxb(
2448 	p_nxge_t nxgep,
2449 	int channel)
2450 {
2451 	size_t			rx_buf_alloc_size;
2452 	nxge_status_t		status = NXGE_OK;
2453 
2454 	nxge_dma_common_t	**data;
2455 	nxge_dma_common_t	**control;
2456 	uint32_t		*num_chunks;
2457 
2458 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2459 
2460 	/*
2461 	 * Allocate memory for the receive buffers and descriptor rings.
2462 	 * Replace these allocation functions with the interface functions
2463 	 * provided by the partition manager if/when they are available.
2464 	 */
2465 
2466 	/*
2467 	 * Allocate memory for the receive buffer blocks.
2468 	 */
2469 	rx_buf_alloc_size = (nxgep->rx_default_block_size *
2470 	    (nxgep->nxge_port_rbr_size + nxgep->nxge_port_rbr_spare_size));
2471 
2472 	data = &nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2473 	num_chunks = &nxgep->rx_buf_pool_p->num_chunks[channel];
2474 
2475 	if ((status = nxge_alloc_rx_buf_dma(
2476 	    nxgep, channel, data, rx_buf_alloc_size,
2477 	    nxgep->rx_default_block_size, num_chunks)) != NXGE_OK) {
2478 		return (status);
2479 	}
2480 
2481 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_alloc_rxb(): "
2482 	    "dma %d dma_buf_p %llx &dma_buf_p %llx", channel, *data, data));
2483 
2484 	/*
2485 	 * Allocate memory for descriptor rings and mailbox.
2486 	 */
2487 	control = &nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2488 
2489 	if ((status = nxge_alloc_rx_cntl_dma(
2490 	    nxgep, channel, control, nxgep->nxge_port_rx_cntl_alloc_size))
2491 	    != NXGE_OK) {
2492 		nxge_free_rx_cntl_dma(nxgep, *control);
2493 		(*data)->buf_alloc_state |= BUF_ALLOCATED_WAIT_FREE;
2494 		nxge_free_rx_buf_dma(nxgep, *data, *num_chunks);
2495 		return (status);
2496 	}
2497 
2498 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2499 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2500 
2501 	return (status);
2502 }
2503 
2504 void
2505 nxge_free_rxb(
2506 	p_nxge_t nxgep,
2507 	int channel)
2508 {
2509 	nxge_dma_common_t	*data;
2510 	nxge_dma_common_t	*control;
2511 	uint32_t		num_chunks;
2512 
2513 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2514 
2515 	data = nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2516 	num_chunks = nxgep->rx_buf_pool_p->num_chunks[channel];
2517 	nxge_free_rx_buf_dma(nxgep, data, num_chunks);
2518 
2519 	nxgep->rx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2520 	nxgep->rx_buf_pool_p->num_chunks[channel] = 0;
2521 
2522 	control = nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2523 	nxge_free_rx_cntl_dma(nxgep, control);
2524 
2525 	nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2526 
2527 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2528 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2529 
2530 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_alloc_rbb"));
2531 }
2532 
2533 static void
2534 nxge_free_rx_mem_pool(p_nxge_t nxgep)
2535 {
2536 	int rdc_max = NXGE_MAX_RDCS;
2537 
2538 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_mem_pool"));
2539 
2540 	if (!nxgep->rx_buf_pool_p || !nxgep->rx_buf_pool_p->buf_allocated) {
2541 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2542 		    "<== nxge_free_rx_mem_pool "
2543 		    "(null rx buf pool or buf not allocated"));
2544 		return;
2545 	}
2546 	if (!nxgep->rx_cntl_pool_p || !nxgep->rx_cntl_pool_p->buf_allocated) {
2547 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2548 		    "<== nxge_free_rx_mem_pool "
2549 		    "(null rx cntl buf pool or cntl buf not allocated"));
2550 		return;
2551 	}
2552 
2553 	KMEM_FREE(nxgep->rx_cntl_pool_p->dma_buf_pool_p,
2554 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2555 	KMEM_FREE(nxgep->rx_cntl_pool_p, sizeof (nxge_dma_pool_t));
2556 
2557 	KMEM_FREE(nxgep->rx_buf_pool_p->num_chunks,
2558 	    sizeof (uint32_t) * rdc_max);
2559 	KMEM_FREE(nxgep->rx_buf_pool_p->dma_buf_pool_p,
2560 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2561 	KMEM_FREE(nxgep->rx_buf_pool_p, sizeof (nxge_dma_pool_t));
2562 
2563 	nxgep->rx_buf_pool_p = 0;
2564 	nxgep->rx_cntl_pool_p = 0;
2565 
2566 	KMEM_FREE(nxgep->rx_rbr_rings->rbr_rings,
2567 	    sizeof (p_rx_rbr_ring_t) * rdc_max);
2568 	KMEM_FREE(nxgep->rx_rbr_rings, sizeof (rx_rbr_rings_t));
2569 	KMEM_FREE(nxgep->rx_rcr_rings->rcr_rings,
2570 	    sizeof (p_rx_rcr_ring_t) * rdc_max);
2571 	KMEM_FREE(nxgep->rx_rcr_rings, sizeof (rx_rcr_rings_t));
2572 	KMEM_FREE(nxgep->rx_mbox_areas_p->rxmbox_areas,
2573 	    sizeof (p_rx_mbox_t) * rdc_max);
2574 	KMEM_FREE(nxgep->rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
2575 
2576 	nxgep->rx_rbr_rings = 0;
2577 	nxgep->rx_rcr_rings = 0;
2578 	nxgep->rx_mbox_areas_p = 0;
2579 
2580 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_rx_mem_pool"));
2581 }
2582 
2583 
2584 static nxge_status_t
2585 nxge_alloc_rx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2586     p_nxge_dma_common_t *dmap,
2587     size_t alloc_size, size_t block_size, uint32_t *num_chunks)
2588 {
2589 	p_nxge_dma_common_t	rx_dmap;
2590 	nxge_status_t		status = NXGE_OK;
2591 	size_t			total_alloc_size;
2592 	size_t			allocated = 0;
2593 	int			i, size_index, array_size;
2594 	boolean_t		use_kmem_alloc = B_FALSE;
2595 
2596 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_buf_dma"));
2597 
2598 	rx_dmap = (p_nxge_dma_common_t)
2599 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2600 	    KM_SLEEP);
2601 
2602 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2603 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
2604 	    dma_channel, alloc_size, block_size, dmap));
2605 
2606 	total_alloc_size = alloc_size;
2607 
2608 #if defined(RX_USE_RECLAIM_POST)
2609 	total_alloc_size = alloc_size + alloc_size/4;
2610 #endif
2611 
2612 	i = 0;
2613 	size_index = 0;
2614 	array_size =  sizeof (alloc_sizes)/sizeof (size_t);
2615 	while ((size_index < array_size) &&
2616 	    (alloc_sizes[size_index] < alloc_size))
2617 		size_index++;
2618 	if (size_index >= array_size) {
2619 		size_index = array_size - 1;
2620 	}
2621 
2622 	/* For Neptune, use kmem_alloc if the kmem flag is set. */
2623 	if (nxgep->niu_type != N2_NIU && nxge_use_kmem_alloc) {
2624 		use_kmem_alloc = B_TRUE;
2625 #if defined(__x86)
2626 		size_index = 0;
2627 #endif
2628 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2629 		    "==> nxge_alloc_rx_buf_dma: "
2630 		    "Neptune use kmem_alloc() - size_index %d",
2631 		    size_index));
2632 	}
2633 
2634 	while ((allocated < total_alloc_size) &&
2635 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2636 		rx_dmap[i].dma_chunk_index = i;
2637 		rx_dmap[i].block_size = block_size;
2638 		rx_dmap[i].alength = alloc_sizes[size_index];
2639 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
2640 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2641 		rx_dmap[i].dma_channel = dma_channel;
2642 		rx_dmap[i].contig_alloc_type = B_FALSE;
2643 		rx_dmap[i].kmem_alloc_type = B_FALSE;
2644 		rx_dmap[i].buf_alloc_type = DDI_MEM_ALLOC;
2645 
2646 		/*
2647 		 * N2/NIU: data buffers must be contiguous as the driver
2648 		 *	   needs to call Hypervisor api to set up
2649 		 *	   logical pages.
2650 		 */
2651 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2652 			rx_dmap[i].contig_alloc_type = B_TRUE;
2653 			rx_dmap[i].buf_alloc_type = CONTIG_MEM_ALLOC;
2654 		} else if (use_kmem_alloc) {
2655 			/* For Neptune, use kmem_alloc */
2656 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2657 			    "==> nxge_alloc_rx_buf_dma: "
2658 			    "Neptune use kmem_alloc()"));
2659 			rx_dmap[i].kmem_alloc_type = B_TRUE;
2660 			rx_dmap[i].buf_alloc_type = KMEM_ALLOC;
2661 		}
2662 
2663 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2664 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
2665 		    "i %d nblocks %d alength %d",
2666 		    dma_channel, i, &rx_dmap[i], block_size,
2667 		    i, rx_dmap[i].nblocks,
2668 		    rx_dmap[i].alength));
2669 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2670 		    &nxge_rx_dma_attr,
2671 		    rx_dmap[i].alength,
2672 		    &nxge_dev_buf_dma_acc_attr,
2673 		    DDI_DMA_READ | DDI_DMA_STREAMING,
2674 		    (p_nxge_dma_common_t)(&rx_dmap[i]));
2675 		if (status != NXGE_OK) {
2676 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2677 			    "nxge_alloc_rx_buf_dma: Alloc Failed: "
2678 			    "dma %d size_index %d size requested %d",
2679 			    dma_channel,
2680 			    size_index,
2681 			    rx_dmap[i].alength));
2682 			size_index--;
2683 		} else {
2684 			rx_dmap[i].buf_alloc_state = BUF_ALLOCATED;
2685 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2686 			    " nxge_alloc_rx_buf_dma DONE  alloc mem: "
2687 			    "dma %d dma_buf_p $%p kaddrp $%p alength %d "
2688 			    "buf_alloc_state %d alloc_type %d",
2689 			    dma_channel,
2690 			    &rx_dmap[i],
2691 			    rx_dmap[i].kaddrp,
2692 			    rx_dmap[i].alength,
2693 			    rx_dmap[i].buf_alloc_state,
2694 			    rx_dmap[i].buf_alloc_type));
2695 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2696 			    " alloc_rx_buf_dma allocated rdc %d "
2697 			    "chunk %d size %x dvma %x bufp %llx kaddrp $%p",
2698 			    dma_channel, i, rx_dmap[i].alength,
2699 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i],
2700 			    rx_dmap[i].kaddrp));
2701 			i++;
2702 			allocated += alloc_sizes[size_index];
2703 		}
2704 	}
2705 
2706 	if (allocated < total_alloc_size) {
2707 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2708 		    "==> nxge_alloc_rx_buf_dma: not enough for channel %d "
2709 		    "allocated 0x%x requested 0x%x",
2710 		    dma_channel,
2711 		    allocated, total_alloc_size));
2712 		status = NXGE_ERROR;
2713 		goto nxge_alloc_rx_mem_fail1;
2714 	}
2715 
2716 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2717 	    "==> nxge_alloc_rx_buf_dma: Allocated for channel %d "
2718 	    "allocated 0x%x requested 0x%x",
2719 	    dma_channel,
2720 	    allocated, total_alloc_size));
2721 
2722 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2723 	    " alloc_rx_buf_dma rdc %d allocated %d chunks",
2724 	    dma_channel, i));
2725 	*num_chunks = i;
2726 	*dmap = rx_dmap;
2727 
2728 	goto nxge_alloc_rx_mem_exit;
2729 
2730 nxge_alloc_rx_mem_fail1:
2731 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2732 
2733 nxge_alloc_rx_mem_exit:
2734 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2735 	    "<== nxge_alloc_rx_buf_dma status 0x%08x", status));
2736 
2737 	return (status);
2738 }
2739 
2740 /*ARGSUSED*/
2741 static void
2742 nxge_free_rx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2743     uint32_t num_chunks)
2744 {
2745 	int		i;
2746 
2747 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2748 	    "==> nxge_free_rx_buf_dma: # of chunks %d", num_chunks));
2749 
2750 	if (dmap == 0)
2751 		return;
2752 
2753 	for (i = 0; i < num_chunks; i++) {
2754 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2755 		    "==> nxge_free_rx_buf_dma: chunk %d dmap 0x%llx",
2756 		    i, dmap));
2757 		nxge_dma_free_rx_data_buf(dmap++);
2758 	}
2759 
2760 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_buf_dma"));
2761 }
2762 
2763 /*ARGSUSED*/
2764 static nxge_status_t
2765 nxge_alloc_rx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2766     p_nxge_dma_common_t *dmap, size_t size)
2767 {
2768 	p_nxge_dma_common_t	rx_dmap;
2769 	nxge_status_t		status = NXGE_OK;
2770 
2771 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_cntl_dma"));
2772 
2773 	rx_dmap = (p_nxge_dma_common_t)
2774 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2775 
2776 	rx_dmap->contig_alloc_type = B_FALSE;
2777 	rx_dmap->kmem_alloc_type = B_FALSE;
2778 
2779 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2780 	    &nxge_desc_dma_attr,
2781 	    size,
2782 	    &nxge_dev_desc_dma_acc_attr,
2783 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2784 	    rx_dmap);
2785 	if (status != NXGE_OK) {
2786 		goto nxge_alloc_rx_cntl_dma_fail1;
2787 	}
2788 
2789 	*dmap = rx_dmap;
2790 	goto nxge_alloc_rx_cntl_dma_exit;
2791 
2792 nxge_alloc_rx_cntl_dma_fail1:
2793 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t));
2794 
2795 nxge_alloc_rx_cntl_dma_exit:
2796 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2797 	    "<== nxge_alloc_rx_cntl_dma status 0x%08x", status));
2798 
2799 	return (status);
2800 }
2801 
2802 /*ARGSUSED*/
2803 static void
2804 nxge_free_rx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2805 {
2806 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_rx_cntl_dma"));
2807 
2808 	if (dmap == 0)
2809 		return;
2810 
2811 	nxge_dma_mem_free(dmap);
2812 
2813 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_rx_cntl_dma"));
2814 }
2815 
2816 typedef struct {
2817 	size_t	tx_size;
2818 	size_t	cr_size;
2819 	size_t	threshhold;
2820 } nxge_tdc_sizes_t;
2821 
2822 static
2823 nxge_status_t
2824 nxge_tdc_sizes(
2825 	nxge_t *nxgep,
2826 	nxge_tdc_sizes_t *sizes)
2827 {
2828 	uint32_t threshhold;	/* The bcopy() threshhold */
2829 	size_t tx_size;		/* Transmit buffer size */
2830 	size_t cr_size;		/* Completion ring size */
2831 
2832 	/*
2833 	 * Assume that each DMA channel will be configured with the
2834 	 * default transmit buffer size for copying transmit data.
2835 	 * (If a packet is bigger than this, it will not be copied.)
2836 	 */
2837 	if (nxgep->niu_type == N2_NIU) {
2838 		threshhold = TX_BCOPY_SIZE;
2839 	} else {
2840 		threshhold = nxge_bcopy_thresh;
2841 	}
2842 	tx_size = nxge_tx_ring_size * threshhold;
2843 
2844 	cr_size = nxge_tx_ring_size * sizeof (tx_desc_t);
2845 	cr_size += sizeof (txdma_mailbox_t);
2846 
2847 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2848 	if (nxgep->niu_type == N2_NIU) {
2849 		if (!ISP2(tx_size)) {
2850 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2851 			    "==> nxge_tdc_sizes: Tx size"
2852 			    " must be power of 2"));
2853 			return (NXGE_ERROR);
2854 		}
2855 
2856 		if (tx_size > (1 << 22)) {
2857 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2858 			    "==> nxge_tdc_sizes: Tx size"
2859 			    " limited to 4M"));
2860 			return (NXGE_ERROR);
2861 		}
2862 
2863 		if (cr_size < 0x2000)
2864 			cr_size = 0x2000;
2865 	}
2866 #endif
2867 
2868 	sizes->threshhold = threshhold;
2869 	sizes->tx_size = tx_size;
2870 	sizes->cr_size = cr_size;
2871 
2872 	return (NXGE_OK);
2873 }
2874 /*
2875  * nxge_alloc_txb
2876  *
2877  *	Allocate buffers for an TDC.
2878  *
2879  * Arguments:
2880  *	nxgep
2881  *	channel	The channel to map into our kernel space.
2882  *
2883  * Notes:
2884  *
2885  * NPI function calls:
2886  *
2887  * NXGE function calls:
2888  *
2889  * Registers accessed:
2890  *
2891  * Context:
2892  *
2893  * Taking apart:
2894  *
2895  * Open questions:
2896  *
2897  */
2898 nxge_status_t
2899 nxge_alloc_txb(
2900 	p_nxge_t nxgep,
2901 	int channel)
2902 {
2903 	nxge_dma_common_t	**dma_buf_p;
2904 	nxge_dma_common_t	**dma_cntl_p;
2905 	uint32_t		*num_chunks;
2906 	nxge_status_t		status = NXGE_OK;
2907 
2908 	nxge_tdc_sizes_t	sizes;
2909 
2910 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tbb"));
2911 
2912 	if (nxge_tdc_sizes(nxgep, &sizes) != NXGE_OK)
2913 		return (NXGE_ERROR);
2914 
2915 	/*
2916 	 * Allocate memory for transmit buffers and descriptor rings.
2917 	 * Replace these allocation functions with the interface functions
2918 	 * provided by the partition manager Real Soon Now.
2919 	 */
2920 	dma_buf_p = &nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2921 	num_chunks = &nxgep->tx_buf_pool_p->num_chunks[channel];
2922 
2923 	dma_cntl_p = &nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2924 
2925 	/*
2926 	 * Allocate memory for transmit buffers and descriptor rings.
2927 	 * Replace allocation functions with interface functions provided
2928 	 * by the partition manager when it is available.
2929 	 *
2930 	 * Allocate memory for the transmit buffer pool.
2931 	 */
2932 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2933 	    "sizes: tx: %ld, cr:%ld, th:%ld",
2934 	    sizes.tx_size, sizes.cr_size, sizes.threshhold));
2935 
2936 	*num_chunks = 0;
2937 	status = nxge_alloc_tx_buf_dma(nxgep, channel, dma_buf_p,
2938 	    sizes.tx_size, sizes.threshhold, num_chunks);
2939 	if (status != NXGE_OK) {
2940 		cmn_err(CE_NOTE, "nxge_alloc_tx_buf_dma failed!");
2941 		return (status);
2942 	}
2943 
2944 	/*
2945 	 * Allocate memory for descriptor rings and mailbox.
2946 	 */
2947 	status = nxge_alloc_tx_cntl_dma(nxgep, channel, dma_cntl_p,
2948 	    sizes.cr_size);
2949 	if (status != NXGE_OK) {
2950 		nxge_free_tx_buf_dma(nxgep, *dma_buf_p, *num_chunks);
2951 		cmn_err(CE_NOTE, "nxge_alloc_tx_cntl_dma failed!");
2952 		return (status);
2953 	}
2954 
2955 	return (NXGE_OK);
2956 }
2957 
2958 void
2959 nxge_free_txb(
2960 	p_nxge_t nxgep,
2961 	int channel)
2962 {
2963 	nxge_dma_common_t	*data;
2964 	nxge_dma_common_t	*control;
2965 	uint32_t		num_chunks;
2966 
2967 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_txb"));
2968 
2969 	data = nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2970 	num_chunks = nxgep->tx_buf_pool_p->num_chunks[channel];
2971 	nxge_free_tx_buf_dma(nxgep, data, num_chunks);
2972 
2973 	nxgep->tx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2974 	nxgep->tx_buf_pool_p->num_chunks[channel] = 0;
2975 
2976 	control = nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2977 	nxge_free_tx_cntl_dma(nxgep, control);
2978 
2979 	nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2980 
2981 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2982 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2983 
2984 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_txb"));
2985 }
2986 
2987 /*
2988  * nxge_alloc_tx_mem_pool
2989  *
2990  *	This function allocates all of the per-port TDC control data structures.
2991  *	The per-channel (TDC) data structures are allocated when needed.
2992  *
2993  * Arguments:
2994  *	nxgep
2995  *
2996  * Notes:
2997  *
2998  * Context:
2999  *	Any domain
3000  */
3001 nxge_status_t
3002 nxge_alloc_tx_mem_pool(p_nxge_t nxgep)
3003 {
3004 	nxge_hw_pt_cfg_t	*p_cfgp;
3005 	nxge_dma_pool_t		*dma_poolp;
3006 	nxge_dma_common_t	**dma_buf_p;
3007 	nxge_dma_pool_t		*dma_cntl_poolp;
3008 	nxge_dma_common_t	**dma_cntl_p;
3009 	uint32_t		*num_chunks; /* per dma */
3010 	int			tdc_max;
3011 
3012 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool"));
3013 
3014 	p_cfgp = &nxgep->pt_config.hw_config;
3015 	tdc_max = NXGE_MAX_TDCS;
3016 
3017 	/*
3018 	 * Allocate memory for each transmit DMA channel.
3019 	 */
3020 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
3021 	    KM_SLEEP);
3022 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
3023 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
3024 
3025 	dma_cntl_poolp = (p_nxge_dma_pool_t)
3026 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
3027 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
3028 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
3029 
3030 	if (nxge_tx_ring_size > TDC_DEFAULT_MAX) {
3031 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
3032 		    "nxge_alloc_tx_mem_pool: TDC too high %d, "
3033 		    "set to default %d",
3034 		    nxge_tx_ring_size, TDC_DEFAULT_MAX));
3035 		nxge_tx_ring_size = TDC_DEFAULT_MAX;
3036 	}
3037 
3038 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3039 	/*
3040 	 * N2/NIU has limitation on the descriptor sizes (contiguous
3041 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
3042 	 * and little endian for control buffers (must use the ddi/dki mem alloc
3043 	 * function). The transmit ring is limited to 8K (includes the
3044 	 * mailbox).
3045 	 */
3046 	if (nxgep->niu_type == N2_NIU) {
3047 		if ((nxge_tx_ring_size > NXGE_NIU_CONTIG_TX_MAX) ||
3048 		    (!ISP2(nxge_tx_ring_size))) {
3049 			nxge_tx_ring_size = NXGE_NIU_CONTIG_TX_MAX;
3050 		}
3051 	}
3052 #endif
3053 
3054 	nxgep->nxge_port_tx_ring_size = nxge_tx_ring_size;
3055 
3056 	num_chunks = (uint32_t *)KMEM_ZALLOC(
3057 	    sizeof (uint32_t) * tdc_max, KM_SLEEP);
3058 
3059 	dma_poolp->ndmas = p_cfgp->tdc.owned;
3060 	dma_poolp->num_chunks = num_chunks;
3061 	dma_poolp->dma_buf_pool_p = dma_buf_p;
3062 	nxgep->tx_buf_pool_p = dma_poolp;
3063 
3064 	dma_poolp->buf_allocated = B_TRUE;
3065 
3066 	dma_cntl_poolp->ndmas = p_cfgp->tdc.owned;
3067 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
3068 	nxgep->tx_cntl_pool_p = dma_cntl_poolp;
3069 
3070 	dma_cntl_poolp->buf_allocated = B_TRUE;
3071 
3072 	nxgep->tx_rings =
3073 	    KMEM_ZALLOC(sizeof (tx_rings_t), KM_SLEEP);
3074 	nxgep->tx_rings->rings =
3075 	    KMEM_ZALLOC(sizeof (p_tx_ring_t) * tdc_max, KM_SLEEP);
3076 	nxgep->tx_mbox_areas_p =
3077 	    KMEM_ZALLOC(sizeof (tx_mbox_areas_t), KM_SLEEP);
3078 	nxgep->tx_mbox_areas_p->txmbox_areas_p =
3079 	    KMEM_ZALLOC(sizeof (p_tx_mbox_t) * tdc_max, KM_SLEEP);
3080 
3081 	nxgep->tx_rings->ndmas = p_cfgp->tdc.owned;
3082 
3083 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
3084 	    "==> nxge_alloc_tx_mem_pool: ndmas %d poolp->ndmas %d",
3085 	    tdc_max, dma_poolp->ndmas));
3086 
3087 	return (NXGE_OK);
3088 }
3089 
3090 nxge_status_t
3091 nxge_alloc_tx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
3092     p_nxge_dma_common_t *dmap, size_t alloc_size,
3093     size_t block_size, uint32_t *num_chunks)
3094 {
3095 	p_nxge_dma_common_t	tx_dmap;
3096 	nxge_status_t		status = NXGE_OK;
3097 	size_t			total_alloc_size;
3098 	size_t			allocated = 0;
3099 	int			i, size_index, array_size;
3100 
3101 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_buf_dma"));
3102 
3103 	tx_dmap = (p_nxge_dma_common_t)
3104 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
3105 	    KM_SLEEP);
3106 
3107 	total_alloc_size = alloc_size;
3108 	i = 0;
3109 	size_index = 0;
3110 	array_size =  sizeof (alloc_sizes) /  sizeof (size_t);
3111 	while ((size_index < array_size) &&
3112 	    (alloc_sizes[size_index] < alloc_size))
3113 		size_index++;
3114 	if (size_index >= array_size) {
3115 		size_index = array_size - 1;
3116 	}
3117 
3118 	while ((allocated < total_alloc_size) &&
3119 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
3120 
3121 		tx_dmap[i].dma_chunk_index = i;
3122 		tx_dmap[i].block_size = block_size;
3123 		tx_dmap[i].alength = alloc_sizes[size_index];
3124 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
3125 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
3126 		tx_dmap[i].dma_channel = dma_channel;
3127 		tx_dmap[i].contig_alloc_type = B_FALSE;
3128 		tx_dmap[i].kmem_alloc_type = B_FALSE;
3129 
3130 		/*
3131 		 * N2/NIU: data buffers must be contiguous as the driver
3132 		 *	   needs to call Hypervisor api to set up
3133 		 *	   logical pages.
3134 		 */
3135 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
3136 			tx_dmap[i].contig_alloc_type = B_TRUE;
3137 		}
3138 
3139 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3140 		    &nxge_tx_dma_attr,
3141 		    tx_dmap[i].alength,
3142 		    &nxge_dev_buf_dma_acc_attr,
3143 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
3144 		    (p_nxge_dma_common_t)(&tx_dmap[i]));
3145 		if (status != NXGE_OK) {
3146 			size_index--;
3147 		} else {
3148 			i++;
3149 			allocated += alloc_sizes[size_index];
3150 		}
3151 	}
3152 
3153 	if (allocated < total_alloc_size) {
3154 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3155 		    "==> nxge_alloc_tx_buf_dma: not enough channel %d: "
3156 		    "allocated 0x%x requested 0x%x",
3157 		    dma_channel,
3158 		    allocated, total_alloc_size));
3159 		status = NXGE_ERROR;
3160 		goto nxge_alloc_tx_mem_fail1;
3161 	}
3162 
3163 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3164 	    "==> nxge_alloc_tx_buf_dma: Allocated for channel %d: "
3165 	    "allocated 0x%x requested 0x%x",
3166 	    dma_channel,
3167 	    allocated, total_alloc_size));
3168 
3169 	*num_chunks = i;
3170 	*dmap = tx_dmap;
3171 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3172 	    "==> nxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
3173 	    *dmap, i));
3174 	goto nxge_alloc_tx_mem_exit;
3175 
3176 nxge_alloc_tx_mem_fail1:
3177 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
3178 
3179 nxge_alloc_tx_mem_exit:
3180 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3181 	    "<== nxge_alloc_tx_buf_dma status 0x%08x", status));
3182 
3183 	return (status);
3184 }
3185 
3186 /*ARGSUSED*/
3187 static void
3188 nxge_free_tx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
3189     uint32_t num_chunks)
3190 {
3191 	int		i;
3192 
3193 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_tx_buf_dma"));
3194 
3195 	if (dmap == 0)
3196 		return;
3197 
3198 	for (i = 0; i < num_chunks; i++) {
3199 		nxge_dma_mem_free(dmap++);
3200 	}
3201 
3202 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_tx_buf_dma"));
3203 }
3204 
3205 /*ARGSUSED*/
3206 nxge_status_t
3207 nxge_alloc_tx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
3208     p_nxge_dma_common_t *dmap, size_t size)
3209 {
3210 	p_nxge_dma_common_t	tx_dmap;
3211 	nxge_status_t		status = NXGE_OK;
3212 
3213 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_cntl_dma"));
3214 	tx_dmap = (p_nxge_dma_common_t)
3215 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
3216 
3217 	tx_dmap->contig_alloc_type = B_FALSE;
3218 	tx_dmap->kmem_alloc_type = B_FALSE;
3219 
3220 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3221 	    &nxge_desc_dma_attr,
3222 	    size,
3223 	    &nxge_dev_desc_dma_acc_attr,
3224 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
3225 	    tx_dmap);
3226 	if (status != NXGE_OK) {
3227 		goto nxge_alloc_tx_cntl_dma_fail1;
3228 	}
3229 
3230 	*dmap = tx_dmap;
3231 	goto nxge_alloc_tx_cntl_dma_exit;
3232 
3233 nxge_alloc_tx_cntl_dma_fail1:
3234 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t));
3235 
3236 nxge_alloc_tx_cntl_dma_exit:
3237 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3238 	    "<== nxge_alloc_tx_cntl_dma status 0x%08x", status));
3239 
3240 	return (status);
3241 }
3242 
3243 /*ARGSUSED*/
3244 static void
3245 nxge_free_tx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
3246 {
3247 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_tx_cntl_dma"));
3248 
3249 	if (dmap == 0)
3250 		return;
3251 
3252 	nxge_dma_mem_free(dmap);
3253 
3254 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_tx_cntl_dma"));
3255 }
3256 
3257 /*
3258  * nxge_free_tx_mem_pool
3259  *
3260  *	This function frees all of the per-port TDC control data structures.
3261  *	The per-channel (TDC) data structures are freed when the channel
3262  *	is stopped.
3263  *
3264  * Arguments:
3265  *	nxgep
3266  *
3267  * Notes:
3268  *
3269  * Context:
3270  *	Any domain
3271  */
3272 static void
3273 nxge_free_tx_mem_pool(p_nxge_t nxgep)
3274 {
3275 	int tdc_max = NXGE_MAX_TDCS;
3276 
3277 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_tx_mem_pool"));
3278 
3279 	if (!nxgep->tx_buf_pool_p || !nxgep->tx_buf_pool_p->buf_allocated) {
3280 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3281 		    "<== nxge_free_tx_mem_pool "
3282 		    "(null tx buf pool or buf not allocated"));
3283 		return;
3284 	}
3285 	if (!nxgep->tx_cntl_pool_p || !nxgep->tx_cntl_pool_p->buf_allocated) {
3286 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3287 		    "<== nxge_free_tx_mem_pool "
3288 		    "(null tx cntl buf pool or cntl buf not allocated"));
3289 		return;
3290 	}
3291 
3292 	/* 1. Free the mailboxes. */
3293 	KMEM_FREE(nxgep->tx_mbox_areas_p->txmbox_areas_p,
3294 	    sizeof (p_tx_mbox_t) * tdc_max);
3295 	KMEM_FREE(nxgep->tx_mbox_areas_p, sizeof (tx_mbox_areas_t));
3296 
3297 	nxgep->tx_mbox_areas_p = 0;
3298 
3299 	/* 2. Free the transmit ring arrays. */
3300 	KMEM_FREE(nxgep->tx_rings->rings,
3301 	    sizeof (p_tx_ring_t) * tdc_max);
3302 	KMEM_FREE(nxgep->tx_rings, sizeof (tx_rings_t));
3303 
3304 	nxgep->tx_rings = 0;
3305 
3306 	/* 3. Free the completion ring data structures. */
3307 	KMEM_FREE(nxgep->tx_cntl_pool_p->dma_buf_pool_p,
3308 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3309 	KMEM_FREE(nxgep->tx_cntl_pool_p, sizeof (nxge_dma_pool_t));
3310 
3311 	nxgep->tx_cntl_pool_p = 0;
3312 
3313 	/* 4. Free the data ring data structures. */
3314 	KMEM_FREE(nxgep->tx_buf_pool_p->num_chunks,
3315 	    sizeof (uint32_t) * tdc_max);
3316 	KMEM_FREE(nxgep->tx_buf_pool_p->dma_buf_pool_p,
3317 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3318 	KMEM_FREE(nxgep->tx_buf_pool_p, sizeof (nxge_dma_pool_t));
3319 
3320 	nxgep->tx_buf_pool_p = 0;
3321 
3322 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_tx_mem_pool"));
3323 }
3324 
3325 /*ARGSUSED*/
3326 static nxge_status_t
3327 nxge_dma_mem_alloc(p_nxge_t nxgep, dma_method_t method,
3328     struct ddi_dma_attr *dma_attrp,
3329     size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
3330     p_nxge_dma_common_t dma_p)
3331 {
3332 	caddr_t			kaddrp;
3333 	int			ddi_status = DDI_SUCCESS;
3334 	boolean_t		contig_alloc_type;
3335 	boolean_t		kmem_alloc_type;
3336 
3337 	contig_alloc_type = dma_p->contig_alloc_type;
3338 
3339 	if (contig_alloc_type && (nxgep->niu_type != N2_NIU)) {
3340 		/*
3341 		 * contig_alloc_type for contiguous memory only allowed
3342 		 * for N2/NIU.
3343 		 */
3344 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3345 		    "nxge_dma_mem_alloc: alloc type not allowed (%d)",
3346 		    dma_p->contig_alloc_type));
3347 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3348 	}
3349 
3350 	dma_p->dma_handle = NULL;
3351 	dma_p->acc_handle = NULL;
3352 	dma_p->kaddrp = dma_p->last_kaddrp = NULL;
3353 	dma_p->first_ioaddr_pp = dma_p->last_ioaddr_pp = NULL;
3354 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, dma_attrp,
3355 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
3356 	if (ddi_status != DDI_SUCCESS) {
3357 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3358 		    "nxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
3359 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3360 	}
3361 
3362 	kmem_alloc_type = dma_p->kmem_alloc_type;
3363 
3364 	switch (contig_alloc_type) {
3365 	case B_FALSE:
3366 		switch (kmem_alloc_type) {
3367 		case B_FALSE:
3368 			ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle,
3369 			    length,
3370 			    acc_attr_p,
3371 			    xfer_flags,
3372 			    DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
3373 			    &dma_p->acc_handle);
3374 			if (ddi_status != DDI_SUCCESS) {
3375 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3376 				    "nxge_dma_mem_alloc: "
3377 				    "ddi_dma_mem_alloc failed"));
3378 				ddi_dma_free_handle(&dma_p->dma_handle);
3379 				dma_p->dma_handle = NULL;
3380 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3381 			}
3382 			if (dma_p->alength < length) {
3383 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3384 				    "nxge_dma_mem_alloc:di_dma_mem_alloc "
3385 				    "< length."));
3386 				ddi_dma_mem_free(&dma_p->acc_handle);
3387 				ddi_dma_free_handle(&dma_p->dma_handle);
3388 				dma_p->acc_handle = NULL;
3389 				dma_p->dma_handle = NULL;
3390 				return (NXGE_ERROR);
3391 			}
3392 
3393 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3394 			    NULL,
3395 			    kaddrp, dma_p->alength, xfer_flags,
3396 			    DDI_DMA_DONTWAIT,
3397 			    0, &dma_p->dma_cookie, &dma_p->ncookies);
3398 			if (ddi_status != DDI_DMA_MAPPED) {
3399 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3400 				    "nxge_dma_mem_alloc: ddi_dma_addr_bind "
3401 				    "failed "
3402 				    "(staus 0x%x ncookies %d.)", ddi_status,
3403 				    dma_p->ncookies));
3404 				if (dma_p->acc_handle) {
3405 					ddi_dma_mem_free(&dma_p->acc_handle);
3406 					dma_p->acc_handle = NULL;
3407 				}
3408 				ddi_dma_free_handle(&dma_p->dma_handle);
3409 				dma_p->dma_handle = NULL;
3410 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3411 			}
3412 
3413 			if (dma_p->ncookies != 1) {
3414 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3415 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3416 				    "> 1 cookie"
3417 				    "(staus 0x%x ncookies %d.)", ddi_status,
3418 				    dma_p->ncookies));
3419 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3420 				if (dma_p->acc_handle) {
3421 					ddi_dma_mem_free(&dma_p->acc_handle);
3422 					dma_p->acc_handle = NULL;
3423 				}
3424 				ddi_dma_free_handle(&dma_p->dma_handle);
3425 				dma_p->dma_handle = NULL;
3426 				dma_p->acc_handle = NULL;
3427 				return (NXGE_ERROR);
3428 			}
3429 			break;
3430 
3431 		case B_TRUE:
3432 			kaddrp = KMEM_ALLOC(length, KM_NOSLEEP);
3433 			if (kaddrp == NULL) {
3434 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3435 				    "nxge_dma_mem_alloc:ddi_dma_mem_alloc "
3436 				    "kmem alloc failed"));
3437 				return (NXGE_ERROR);
3438 			}
3439 
3440 			dma_p->alength = length;
3441 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3442 			    NULL, kaddrp, dma_p->alength, xfer_flags,
3443 			    DDI_DMA_DONTWAIT, 0,
3444 			    &dma_p->dma_cookie, &dma_p->ncookies);
3445 			if (ddi_status != DDI_DMA_MAPPED) {
3446 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3447 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind: "
3448 				    "(kmem_alloc) failed kaddrp $%p length %d "
3449 				    "(staus 0x%x (%d) ncookies %d.)",
3450 				    kaddrp, length,
3451 				    ddi_status, ddi_status, dma_p->ncookies));
3452 				KMEM_FREE(kaddrp, length);
3453 				dma_p->acc_handle = NULL;
3454 				ddi_dma_free_handle(&dma_p->dma_handle);
3455 				dma_p->dma_handle = NULL;
3456 				dma_p->kaddrp = NULL;
3457 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3458 			}
3459 
3460 			if (dma_p->ncookies != 1) {
3461 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3462 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3463 				    "(kmem_alloc) > 1 cookie"
3464 				    "(staus 0x%x ncookies %d.)", ddi_status,
3465 				    dma_p->ncookies));
3466 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3467 				KMEM_FREE(kaddrp, length);
3468 				ddi_dma_free_handle(&dma_p->dma_handle);
3469 				dma_p->dma_handle = NULL;
3470 				dma_p->acc_handle = NULL;
3471 				dma_p->kaddrp = NULL;
3472 				return (NXGE_ERROR);
3473 			}
3474 
3475 			dma_p->kaddrp = kaddrp;
3476 
3477 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
3478 			    "nxge_dma_mem_alloc: kmem_alloc dmap $%p "
3479 			    "kaddr $%p alength %d",
3480 			    dma_p,
3481 			    kaddrp,
3482 			    dma_p->alength));
3483 			break;
3484 		}
3485 		break;
3486 
3487 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3488 	case B_TRUE:
3489 		kaddrp = (caddr_t)contig_mem_alloc(length);
3490 		if (kaddrp == NULL) {
3491 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3492 			    "nxge_dma_mem_alloc:contig_mem_alloc failed."));
3493 			ddi_dma_free_handle(&dma_p->dma_handle);
3494 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3495 		}
3496 
3497 		dma_p->alength = length;
3498 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
3499 		    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
3500 		    &dma_p->dma_cookie, &dma_p->ncookies);
3501 		if (ddi_status != DDI_DMA_MAPPED) {
3502 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3503 			    "nxge_dma_mem_alloc:di_dma_addr_bind failed "
3504 			    "(status 0x%x ncookies %d.)", ddi_status,
3505 			    dma_p->ncookies));
3506 
3507 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3508 			    "==> nxge_dma_mem_alloc: (not mapped)"
3509 			    "length %lu (0x%x) "
3510 			    "free contig kaddrp $%p "
3511 			    "va_to_pa $%p",
3512 			    length, length,
3513 			    kaddrp,
3514 			    va_to_pa(kaddrp)));
3515 
3516 
3517 			contig_mem_free((void *)kaddrp, length);
3518 			ddi_dma_free_handle(&dma_p->dma_handle);
3519 
3520 			dma_p->dma_handle = NULL;
3521 			dma_p->acc_handle = NULL;
3522 			dma_p->alength = 0;
3523 			dma_p->kaddrp = NULL;
3524 
3525 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3526 		}
3527 
3528 		if (dma_p->ncookies != 1 ||
3529 		    (dma_p->dma_cookie.dmac_laddress == 0)) {
3530 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3531 			    "nxge_dma_mem_alloc:di_dma_addr_bind > 1 "
3532 			    "cookie or "
3533 			    "dmac_laddress is NULL $%p size %d "
3534 			    " (status 0x%x ncookies %d.)",
3535 			    ddi_status,
3536 			    dma_p->dma_cookie.dmac_laddress,
3537 			    dma_p->dma_cookie.dmac_size,
3538 			    dma_p->ncookies));
3539 
3540 			contig_mem_free((void *)kaddrp, length);
3541 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3542 			ddi_dma_free_handle(&dma_p->dma_handle);
3543 
3544 			dma_p->alength = 0;
3545 			dma_p->dma_handle = NULL;
3546 			dma_p->acc_handle = NULL;
3547 			dma_p->kaddrp = NULL;
3548 
3549 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3550 		}
3551 		break;
3552 
3553 #else
3554 	case B_TRUE:
3555 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3556 		    "nxge_dma_mem_alloc: invalid alloc type for !sun4v"));
3557 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3558 #endif
3559 	}
3560 
3561 	dma_p->kaddrp = kaddrp;
3562 	dma_p->last_kaddrp = (unsigned char *)kaddrp +
3563 	    dma_p->alength - RXBUF_64B_ALIGNED;
3564 	dma_p->ioaddr_pp = (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3565 	dma_p->last_ioaddr_pp =
3566 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress +
3567 	    dma_p->alength - RXBUF_64B_ALIGNED;
3568 
3569 	NPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
3570 
3571 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3572 	dma_p->orig_ioaddr_pp =
3573 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3574 	dma_p->orig_alength = length;
3575 	dma_p->orig_kaddrp = kaddrp;
3576 	dma_p->orig_vatopa = (uint64_t)va_to_pa(kaddrp);
3577 #endif
3578 
3579 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_dma_mem_alloc: "
3580 	    "dma buffer allocated: dma_p $%p "
3581 	    "return dmac_ladress from cookie $%p cookie dmac_size %d "
3582 	    "dma_p->ioaddr_p $%p "
3583 	    "dma_p->orig_ioaddr_p $%p "
3584 	    "orig_vatopa $%p "
3585 	    "alength %d (0x%x) "
3586 	    "kaddrp $%p "
3587 	    "length %d (0x%x)",
3588 	    dma_p,
3589 	    dma_p->dma_cookie.dmac_laddress, dma_p->dma_cookie.dmac_size,
3590 	    dma_p->ioaddr_pp,
3591 	    dma_p->orig_ioaddr_pp,
3592 	    dma_p->orig_vatopa,
3593 	    dma_p->alength, dma_p->alength,
3594 	    kaddrp,
3595 	    length, length));
3596 
3597 	return (NXGE_OK);
3598 }
3599 
3600 static void
3601 nxge_dma_mem_free(p_nxge_dma_common_t dma_p)
3602 {
3603 	if (dma_p->dma_handle != NULL) {
3604 		if (dma_p->ncookies) {
3605 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3606 			dma_p->ncookies = 0;
3607 		}
3608 		ddi_dma_free_handle(&dma_p->dma_handle);
3609 		dma_p->dma_handle = NULL;
3610 	}
3611 
3612 	if (dma_p->acc_handle != NULL) {
3613 		ddi_dma_mem_free(&dma_p->acc_handle);
3614 		dma_p->acc_handle = NULL;
3615 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3616 	}
3617 
3618 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3619 	if (dma_p->contig_alloc_type &&
3620 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3621 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_mem_free: "
3622 		    "kaddrp $%p (orig_kaddrp $%p)"
3623 		    "mem type %d ",
3624 		    "orig_alength %d "
3625 		    "alength 0x%x (%d)",
3626 		    dma_p->kaddrp,
3627 		    dma_p->orig_kaddrp,
3628 		    dma_p->contig_alloc_type,
3629 		    dma_p->orig_alength,
3630 		    dma_p->alength, dma_p->alength));
3631 
3632 		contig_mem_free(dma_p->orig_kaddrp, dma_p->orig_alength);
3633 		dma_p->orig_alength = 0;
3634 		dma_p->orig_kaddrp = NULL;
3635 		dma_p->contig_alloc_type = B_FALSE;
3636 	}
3637 #endif
3638 	dma_p->kaddrp = NULL;
3639 	dma_p->alength = 0;
3640 }
3641 
3642 static void
3643 nxge_dma_free_rx_data_buf(p_nxge_dma_common_t dma_p)
3644 {
3645 	uint64_t kaddr;
3646 	uint32_t buf_size;
3647 
3648 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "==> nxge_dma_free_rx_data_buf"));
3649 
3650 	if (dma_p->dma_handle != NULL) {
3651 		if (dma_p->ncookies) {
3652 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3653 			dma_p->ncookies = 0;
3654 		}
3655 		ddi_dma_free_handle(&dma_p->dma_handle);
3656 		dma_p->dma_handle = NULL;
3657 	}
3658 
3659 	if (dma_p->acc_handle != NULL) {
3660 		ddi_dma_mem_free(&dma_p->acc_handle);
3661 		dma_p->acc_handle = NULL;
3662 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3663 	}
3664 
3665 	NXGE_DEBUG_MSG((NULL, DMA_CTL,
3666 	    "==> nxge_dma_free_rx_data_buf: dmap $%p buf_alloc_state %d",
3667 	    dma_p,
3668 	    dma_p->buf_alloc_state));
3669 
3670 	if (!(dma_p->buf_alloc_state & BUF_ALLOCATED_WAIT_FREE)) {
3671 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3672 		    "<== nxge_dma_free_rx_data_buf: "
3673 		    "outstanding data buffers"));
3674 		return;
3675 	}
3676 
3677 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3678 	if (dma_p->contig_alloc_type &&
3679 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3680 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_free_rx_data_buf: "
3681 		    "kaddrp $%p (orig_kaddrp $%p)"
3682 		    "mem type %d ",
3683 		    "orig_alength %d "
3684 		    "alength 0x%x (%d)",
3685 		    dma_p->kaddrp,
3686 		    dma_p->orig_kaddrp,
3687 		    dma_p->contig_alloc_type,
3688 		    dma_p->orig_alength,
3689 		    dma_p->alength, dma_p->alength));
3690 
3691 		kaddr = (uint64_t)dma_p->orig_kaddrp;
3692 		buf_size = dma_p->orig_alength;
3693 		nxge_free_buf(CONTIG_MEM_ALLOC, kaddr, buf_size);
3694 		dma_p->orig_alength = 0;
3695 		dma_p->orig_kaddrp = NULL;
3696 		dma_p->contig_alloc_type = B_FALSE;
3697 		dma_p->kaddrp = NULL;
3698 		dma_p->alength = 0;
3699 		return;
3700 	}
3701 #endif
3702 
3703 	if (dma_p->kmem_alloc_type) {
3704 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3705 		    "nxge_dma_free_rx_data_buf: free kmem "
3706 		    "kaddrp $%p (orig_kaddrp $%p)"
3707 		    "alloc type %d "
3708 		    "orig_alength %d "
3709 		    "alength 0x%x (%d)",
3710 		    dma_p->kaddrp,
3711 		    dma_p->orig_kaddrp,
3712 		    dma_p->kmem_alloc_type,
3713 		    dma_p->orig_alength,
3714 		    dma_p->alength, dma_p->alength));
3715 		kaddr = (uint64_t)dma_p->kaddrp;
3716 		buf_size = dma_p->orig_alength;
3717 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3718 		    "nxge_dma_free_rx_data_buf: free dmap $%p "
3719 		    "kaddr $%p buf_size %d",
3720 		    dma_p,
3721 		    kaddr, buf_size));
3722 		nxge_free_buf(KMEM_ALLOC, kaddr, buf_size);
3723 		dma_p->alength = 0;
3724 		dma_p->orig_alength = 0;
3725 		dma_p->kaddrp = NULL;
3726 		dma_p->kmem_alloc_type = B_FALSE;
3727 	}
3728 
3729 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "<== nxge_dma_free_rx_data_buf"));
3730 }
3731 
3732 /*
3733  *	nxge_m_start() -- start transmitting and receiving.
3734  *
3735  *	This function is called by the MAC layer when the first
3736  *	stream is open to prepare the hardware ready for sending
3737  *	and transmitting packets.
3738  */
3739 static int
3740 nxge_m_start(void *arg)
3741 {
3742 	p_nxge_t	nxgep = (p_nxge_t)arg;
3743 
3744 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_start"));
3745 
3746 	/*
3747 	 * Are we already started?
3748 	 */
3749 	if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
3750 		return (0);
3751 	}
3752 
3753 	if (nxge_peu_reset_enable && !nxgep->nxge_link_poll_timerid) {
3754 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
3755 	}
3756 
3757 	/*
3758 	 * Make sure RX MAC is disabled while we initialize.
3759 	 */
3760 	if (!isLDOMguest(nxgep)) {
3761 		(void) nxge_rx_mac_disable(nxgep);
3762 	}
3763 
3764 	/*
3765 	 * Grab the global lock.
3766 	 */
3767 	MUTEX_ENTER(nxgep->genlock);
3768 
3769 	/*
3770 	 * Initialize the driver and hardware.
3771 	 */
3772 	if (nxge_init(nxgep) != NXGE_OK) {
3773 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3774 		    "<== nxge_m_start: initialization failed"));
3775 		MUTEX_EXIT(nxgep->genlock);
3776 		return (EIO);
3777 	}
3778 
3779 	/*
3780 	 * Start timer to check the system error and tx hangs
3781 	 */
3782 	if (!isLDOMguest(nxgep))
3783 		nxgep->nxge_timerid = nxge_start_timer(nxgep,
3784 		    nxge_check_hw_state, NXGE_CHECK_TIMER);
3785 #if defined(sun4v)
3786 	else
3787 		nxge_hio_start_timer(nxgep);
3788 #endif
3789 
3790 	nxgep->link_notify = B_TRUE;
3791 	nxgep->link_check_count = 0;
3792 	nxgep->nxge_mac_state = NXGE_MAC_STARTED;
3793 
3794 	/*
3795 	 * Let the global lock go, since we are intialized.
3796 	 */
3797 	MUTEX_EXIT(nxgep->genlock);
3798 
3799 	/*
3800 	 * Let the MAC start receiving packets, now that
3801 	 * we are initialized.
3802 	 */
3803 	if (!isLDOMguest(nxgep)) {
3804 		if (nxge_rx_mac_enable(nxgep) != NXGE_OK) {
3805 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3806 			    "<== nxge_m_start: enable of RX mac failed"));
3807 			return (EIO);
3808 		}
3809 
3810 		/*
3811 		 * Enable hardware interrupts.
3812 		 */
3813 		nxge_intr_hw_enable(nxgep);
3814 	}
3815 #if defined(sun4v)
3816 	else {
3817 		/*
3818 		 * In guest domain we enable RDCs and their interrupts as
3819 		 * the last step.
3820 		 */
3821 		if (nxge_hio_rdc_enable(nxgep) != NXGE_OK) {
3822 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3823 			    "<== nxge_m_start: enable of RDCs failed"));
3824 			return (EIO);
3825 		}
3826 
3827 		if (nxge_hio_rdc_intr_arm(nxgep, B_TRUE) != NXGE_OK) {
3828 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3829 			    "<== nxge_m_start: intrs enable for RDCs failed"));
3830 			return (EIO);
3831 		}
3832 	}
3833 #endif
3834 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_start"));
3835 	return (0);
3836 }
3837 
3838 static boolean_t
3839 nxge_check_groups_stopped(p_nxge_t nxgep)
3840 {
3841 	int	i;
3842 
3843 	for (i = 0; i < NXGE_MAX_RDC_GROUPS; i++) {
3844 		if (nxgep->rx_hio_groups[i].started)
3845 			return (B_FALSE);
3846 	}
3847 
3848 	return (B_TRUE);
3849 }
3850 
3851 /*
3852  *	nxge_m_stop(): stop transmitting and receiving.
3853  */
3854 static void
3855 nxge_m_stop(void *arg)
3856 {
3857 	p_nxge_t	nxgep = (p_nxge_t)arg;
3858 	boolean_t	groups_stopped;
3859 
3860 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_stop"));
3861 
3862 	/*
3863 	 * Are the groups stopped?
3864 	 */
3865 	groups_stopped = nxge_check_groups_stopped(nxgep);
3866 	ASSERT(groups_stopped == B_TRUE);
3867 	if (!groups_stopped) {
3868 		cmn_err(CE_WARN, "nxge(%d): groups are not stopped!\n",
3869 		    nxgep->instance);
3870 		return;
3871 	}
3872 
3873 	if (!isLDOMguest(nxgep)) {
3874 		/*
3875 		 * Disable the RX mac.
3876 		 */
3877 		(void) nxge_rx_mac_disable(nxgep);
3878 
3879 		/*
3880 		 * Wait for the IPP to drain.
3881 		 */
3882 		(void) nxge_ipp_drain(nxgep);
3883 
3884 		/*
3885 		 * Disable hardware interrupts.
3886 		 */
3887 		nxge_intr_hw_disable(nxgep);
3888 	}
3889 #if defined(sun4v)
3890 	else {
3891 		(void) nxge_hio_rdc_intr_arm(nxgep, B_FALSE);
3892 	}
3893 #endif
3894 
3895 	/*
3896 	 * Grab the global lock.
3897 	 */
3898 	MUTEX_ENTER(nxgep->genlock);
3899 
3900 	nxgep->nxge_mac_state = NXGE_MAC_STOPPING;
3901 	if (nxgep->nxge_timerid) {
3902 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
3903 		nxgep->nxge_timerid = 0;
3904 	}
3905 
3906 	/*
3907 	 * Clean up.
3908 	 */
3909 	nxge_uninit(nxgep);
3910 
3911 	nxgep->nxge_mac_state = NXGE_MAC_STOPPED;
3912 
3913 	/*
3914 	 * Let go of the global lock.
3915 	 */
3916 	MUTEX_EXIT(nxgep->genlock);
3917 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_stop"));
3918 }
3919 
3920 static int
3921 nxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
3922 {
3923 	p_nxge_t	nxgep = (p_nxge_t)arg;
3924 	struct		ether_addr addrp;
3925 
3926 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3927 	    "==> nxge_m_multicst: add %d", add));
3928 
3929 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
3930 	if (add) {
3931 		if (nxge_add_mcast_addr(nxgep, &addrp)) {
3932 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3933 			    "<== nxge_m_multicst: add multicast failed"));
3934 			return (EINVAL);
3935 		}
3936 	} else {
3937 		if (nxge_del_mcast_addr(nxgep, &addrp)) {
3938 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3939 			    "<== nxge_m_multicst: del multicast failed"));
3940 			return (EINVAL);
3941 		}
3942 	}
3943 
3944 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_multicst"));
3945 
3946 	return (0);
3947 }
3948 
3949 static int
3950 nxge_m_promisc(void *arg, boolean_t on)
3951 {
3952 	p_nxge_t	nxgep = (p_nxge_t)arg;
3953 
3954 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3955 	    "==> nxge_m_promisc: on %d", on));
3956 
3957 	if (nxge_set_promisc(nxgep, on)) {
3958 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3959 		    "<== nxge_m_promisc: set promisc failed"));
3960 		return (EINVAL);
3961 	}
3962 
3963 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3964 	    "<== nxge_m_promisc: on %d", on));
3965 
3966 	return (0);
3967 }
3968 
3969 static void
3970 nxge_m_ioctl(void *arg,	 queue_t *wq, mblk_t *mp)
3971 {
3972 	p_nxge_t	nxgep = (p_nxge_t)arg;
3973 	struct		iocblk *iocp;
3974 	boolean_t	need_privilege;
3975 	int		err;
3976 	int		cmd;
3977 
3978 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl"));
3979 
3980 	iocp = (struct iocblk *)mp->b_rptr;
3981 	iocp->ioc_error = 0;
3982 	need_privilege = B_TRUE;
3983 	cmd = iocp->ioc_cmd;
3984 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl: cmd 0x%08x", cmd));
3985 	switch (cmd) {
3986 	default:
3987 		miocnak(wq, mp, 0, EINVAL);
3988 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl: invalid"));
3989 		return;
3990 
3991 	case LB_GET_INFO_SIZE:
3992 	case LB_GET_INFO:
3993 	case LB_GET_MODE:
3994 		need_privilege = B_FALSE;
3995 		break;
3996 	case LB_SET_MODE:
3997 		break;
3998 
3999 
4000 	case NXGE_GET_MII:
4001 	case NXGE_PUT_MII:
4002 	case NXGE_GET64:
4003 	case NXGE_PUT64:
4004 	case NXGE_GET_TX_RING_SZ:
4005 	case NXGE_GET_TX_DESC:
4006 	case NXGE_TX_SIDE_RESET:
4007 	case NXGE_RX_SIDE_RESET:
4008 	case NXGE_GLOBAL_RESET:
4009 	case NXGE_RESET_MAC:
4010 	case NXGE_TX_REGS_DUMP:
4011 	case NXGE_RX_REGS_DUMP:
4012 	case NXGE_INT_REGS_DUMP:
4013 	case NXGE_VIR_INT_REGS_DUMP:
4014 	case NXGE_PUT_TCAM:
4015 	case NXGE_GET_TCAM:
4016 	case NXGE_RTRACE:
4017 	case NXGE_RDUMP:
4018 	case NXGE_RX_CLASS:
4019 	case NXGE_RX_HASH:
4020 
4021 		need_privilege = B_FALSE;
4022 		break;
4023 	case NXGE_INJECT_ERR:
4024 		cmn_err(CE_NOTE, "!nxge_m_ioctl: Inject error\n");
4025 		nxge_err_inject(nxgep, wq, mp);
4026 		break;
4027 	}
4028 
4029 	if (need_privilege) {
4030 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
4031 		if (err != 0) {
4032 			miocnak(wq, mp, 0, err);
4033 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
4034 			    "<== nxge_m_ioctl: no priv"));
4035 			return;
4036 		}
4037 	}
4038 
4039 	switch (cmd) {
4040 
4041 	case LB_GET_MODE:
4042 	case LB_SET_MODE:
4043 	case LB_GET_INFO_SIZE:
4044 	case LB_GET_INFO:
4045 		nxge_loopback_ioctl(nxgep, wq, mp, iocp);
4046 		break;
4047 
4048 	case NXGE_GET_MII:
4049 	case NXGE_PUT_MII:
4050 	case NXGE_PUT_TCAM:
4051 	case NXGE_GET_TCAM:
4052 	case NXGE_GET64:
4053 	case NXGE_PUT64:
4054 	case NXGE_GET_TX_RING_SZ:
4055 	case NXGE_GET_TX_DESC:
4056 	case NXGE_TX_SIDE_RESET:
4057 	case NXGE_RX_SIDE_RESET:
4058 	case NXGE_GLOBAL_RESET:
4059 	case NXGE_RESET_MAC:
4060 	case NXGE_TX_REGS_DUMP:
4061 	case NXGE_RX_REGS_DUMP:
4062 	case NXGE_INT_REGS_DUMP:
4063 	case NXGE_VIR_INT_REGS_DUMP:
4064 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4065 		    "==> nxge_m_ioctl: cmd 0x%x", cmd));
4066 		nxge_hw_ioctl(nxgep, wq, mp, iocp);
4067 		break;
4068 	case NXGE_RX_CLASS:
4069 		if (nxge_rxclass_ioctl(nxgep, wq, mp->b_cont) < 0)
4070 			miocnak(wq, mp, 0, EINVAL);
4071 		else
4072 			miocack(wq, mp, sizeof (rx_class_cfg_t), 0);
4073 		break;
4074 	case NXGE_RX_HASH:
4075 
4076 		if (nxge_rxhash_ioctl(nxgep, wq, mp->b_cont) < 0)
4077 			miocnak(wq, mp, 0, EINVAL);
4078 		else
4079 			miocack(wq, mp, sizeof (cfg_cmd_t), 0);
4080 		break;
4081 	}
4082 
4083 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl"));
4084 }
4085 
4086 extern void nxge_rx_hw_blank(void *arg, time_t ticks, uint_t count);
4087 
4088 void
4089 nxge_mmac_kstat_update(p_nxge_t nxgep, int slot, boolean_t factory)
4090 {
4091 	p_nxge_mmac_stats_t mmac_stats;
4092 	int i;
4093 	nxge_mmac_t *mmac_info;
4094 
4095 	mmac_info = &nxgep->nxge_mmac_info;
4096 
4097 	mmac_stats = &nxgep->statsp->mmac_stats;
4098 	mmac_stats->mmac_max_cnt = mmac_info->num_mmac;
4099 	mmac_stats->mmac_avail_cnt = mmac_info->naddrfree;
4100 
4101 	for (i = 0; i < ETHERADDRL; i++) {
4102 		if (factory) {
4103 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
4104 			    = mmac_info->factory_mac_pool[slot][
4105 			    (ETHERADDRL-1) - i];
4106 		} else {
4107 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
4108 			    = mmac_info->mac_pool[slot].addr[
4109 			    (ETHERADDRL - 1) - i];
4110 		}
4111 	}
4112 }
4113 
4114 /*
4115  * nxge_altmac_set() -- Set an alternate MAC address
4116  */
4117 static int
4118 nxge_altmac_set(p_nxge_t nxgep, uint8_t *maddr, int slot,
4119     int rdctbl, boolean_t usetbl)
4120 {
4121 	uint8_t addrn;
4122 	uint8_t portn;
4123 	npi_mac_addr_t altmac;
4124 	hostinfo_t mac_rdc;
4125 	p_nxge_class_pt_cfg_t clscfgp;
4126 
4127 
4128 	altmac.w2 = ((uint16_t)maddr[0] << 8) | ((uint16_t)maddr[1] & 0x0ff);
4129 	altmac.w1 = ((uint16_t)maddr[2] << 8) | ((uint16_t)maddr[3] & 0x0ff);
4130 	altmac.w0 = ((uint16_t)maddr[4] << 8) | ((uint16_t)maddr[5] & 0x0ff);
4131 
4132 	portn = nxgep->mac.portnum;
4133 	addrn = (uint8_t)slot - 1;
4134 
4135 	if (npi_mac_altaddr_entry(nxgep->npi_handle, OP_SET,
4136 	    nxgep->function_num, addrn, &altmac) != NPI_SUCCESS)
4137 		return (EIO);
4138 
4139 	/*
4140 	 * Set the rdc table number for the host info entry
4141 	 * for this mac address slot.
4142 	 */
4143 	clscfgp = (p_nxge_class_pt_cfg_t)&nxgep->class_config;
4144 	mac_rdc.value = 0;
4145 	if (usetbl)
4146 		mac_rdc.bits.w0.rdc_tbl_num = rdctbl;
4147 	else
4148 		mac_rdc.bits.w0.rdc_tbl_num =
4149 		    clscfgp->mac_host_info[addrn].rdctbl;
4150 	mac_rdc.bits.w0.mac_pref = clscfgp->mac_host_info[addrn].mpr_npr;
4151 
4152 	if (npi_mac_hostinfo_entry(nxgep->npi_handle, OP_SET,
4153 	    nxgep->function_num, addrn, &mac_rdc) != NPI_SUCCESS) {
4154 		return (EIO);
4155 	}
4156 
4157 	/*
4158 	 * Enable comparison with the alternate MAC address.
4159 	 * While the first alternate addr is enabled by bit 1 of register
4160 	 * BMAC_ALTAD_CMPEN, it is enabled by bit 0 of register
4161 	 * XMAC_ADDR_CMPEN, so slot needs to be converted to addrn
4162 	 * accordingly before calling npi_mac_altaddr_entry.
4163 	 */
4164 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4165 		addrn = (uint8_t)slot - 1;
4166 	else
4167 		addrn = (uint8_t)slot;
4168 
4169 	if (npi_mac_altaddr_enable(nxgep->npi_handle,
4170 	    nxgep->function_num, addrn) != NPI_SUCCESS) {
4171 		return (EIO);
4172 	}
4173 
4174 	return (0);
4175 }
4176 
4177 /*
4178  * nxeg_m_mmac_add_g() - find an unused address slot, set the address
4179  * value to the one specified, enable the port to start filtering on
4180  * the new MAC address.	 Returns 0 on success.
4181  */
4182 int
4183 nxge_m_mmac_add_g(void *arg, const uint8_t *maddr, int rdctbl,
4184     boolean_t usetbl)
4185 {
4186 	p_nxge_t nxgep = arg;
4187 	int slot;
4188 	nxge_mmac_t *mmac_info;
4189 	int err;
4190 	nxge_status_t status;
4191 
4192 	mutex_enter(nxgep->genlock);
4193 
4194 	/*
4195 	 * Make sure that nxge is initialized, if _start() has
4196 	 * not been called.
4197 	 */
4198 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4199 		status = nxge_init(nxgep);
4200 		if (status != NXGE_OK) {
4201 			mutex_exit(nxgep->genlock);
4202 			return (ENXIO);
4203 		}
4204 	}
4205 
4206 	mmac_info = &nxgep->nxge_mmac_info;
4207 	if (mmac_info->naddrfree == 0) {
4208 		mutex_exit(nxgep->genlock);
4209 		return (ENOSPC);
4210 	}
4211 
4212 	/*
4213 	 *	Search for the first available slot. Because naddrfree
4214 	 * is not zero, we are guaranteed to find one.
4215 	 *	Each of the first two ports of Neptune has 16 alternate
4216 	 * MAC slots but only the first 7 (of 15) slots have assigned factory
4217 	 * MAC addresses. We first search among the slots without bundled
4218 	 * factory MACs. If we fail to find one in that range, then we
4219 	 * search the slots with bundled factory MACs.	A factory MAC
4220 	 * will be wasted while the slot is used with a user MAC address.
4221 	 * But the slot could be used by factory MAC again after calling
4222 	 * nxge_m_mmac_remove and nxge_m_mmac_reserve.
4223 	 */
4224 	for (slot = 0; slot <= mmac_info->num_mmac; slot++) {
4225 		if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
4226 			break;
4227 	}
4228 
4229 	ASSERT(slot <= mmac_info->num_mmac);
4230 
4231 	if ((err = nxge_altmac_set(nxgep, (uint8_t *)maddr, slot, rdctbl,
4232 	    usetbl)) != 0) {
4233 		mutex_exit(nxgep->genlock);
4234 		return (err);
4235 	}
4236 
4237 	bcopy(maddr, mmac_info->mac_pool[slot].addr, ETHERADDRL);
4238 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED;
4239 	mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
4240 	mmac_info->naddrfree--;
4241 	nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4242 
4243 	mutex_exit(nxgep->genlock);
4244 	return (0);
4245 }
4246 
4247 /*
4248  * Remove the specified mac address and update the HW not to filter
4249  * the mac address anymore.
4250  */
4251 int
4252 nxge_m_mmac_remove(void *arg, int slot)
4253 {
4254 	p_nxge_t nxgep = arg;
4255 	nxge_mmac_t *mmac_info;
4256 	uint8_t addrn;
4257 	uint8_t portn;
4258 	int err = 0;
4259 	nxge_status_t status;
4260 
4261 	mutex_enter(nxgep->genlock);
4262 
4263 	/*
4264 	 * Make sure that nxge is initialized, if _start() has
4265 	 * not been called.
4266 	 */
4267 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4268 		status = nxge_init(nxgep);
4269 		if (status != NXGE_OK) {
4270 			mutex_exit(nxgep->genlock);
4271 			return (ENXIO);
4272 		}
4273 	}
4274 
4275 	mmac_info = &nxgep->nxge_mmac_info;
4276 	if (slot < 1 || slot > mmac_info->num_mmac) {
4277 		mutex_exit(nxgep->genlock);
4278 		return (EINVAL);
4279 	}
4280 
4281 	portn = nxgep->mac.portnum;
4282 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4283 		addrn = (uint8_t)slot - 1;
4284 	else
4285 		addrn = (uint8_t)slot;
4286 
4287 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
4288 		if (npi_mac_altaddr_disable(nxgep->npi_handle, portn, addrn)
4289 		    == NPI_SUCCESS) {
4290 			mmac_info->naddrfree++;
4291 			mmac_info->mac_pool[slot].flags &= ~MMAC_SLOT_USED;
4292 			/*
4293 			 * Regardless if the MAC we just stopped filtering
4294 			 * is a user addr or a facory addr, we must set
4295 			 * the MMAC_VENDOR_ADDR flag if this slot has an
4296 			 * associated factory MAC to indicate that a factory
4297 			 * MAC is available.
4298 			 */
4299 			if (slot <= mmac_info->num_factory_mmac) {
4300 				mmac_info->mac_pool[slot].flags
4301 				    |= MMAC_VENDOR_ADDR;
4302 			}
4303 			/*
4304 			 * Clear mac_pool[slot].addr so that kstat shows 0
4305 			 * alternate MAC address if the slot is not used.
4306 			 * (But nxge_m_mmac_get returns the factory MAC even
4307 			 * when the slot is not used!)
4308 			 */
4309 			bzero(mmac_info->mac_pool[slot].addr, ETHERADDRL);
4310 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4311 		} else {
4312 			err = EIO;
4313 		}
4314 	} else {
4315 		err = EINVAL;
4316 	}
4317 
4318 	mutex_exit(nxgep->genlock);
4319 	return (err);
4320 }
4321 
4322 /*
4323  * The callback to query all the factory addresses. naddr must be the same as
4324  * the number of factory addresses (returned by MAC_CAPAB_MULTIFACTADDR), and
4325  * mcm_addr is the space allocated for keep all the addresses, whose size is
4326  * naddr * MAXMACADDRLEN.
4327  */
4328 static void
4329 nxge_m_getfactaddr(void *arg, uint_t naddr, uint8_t *addr)
4330 {
4331 	nxge_t		*nxgep = arg;
4332 	nxge_mmac_t	*mmac_info;
4333 	int		i;
4334 
4335 	mutex_enter(nxgep->genlock);
4336 
4337 	mmac_info = &nxgep->nxge_mmac_info;
4338 	ASSERT(naddr == mmac_info->num_factory_mmac);
4339 
4340 	for (i = 0; i < naddr; i++) {
4341 		bcopy(mmac_info->factory_mac_pool[i + 1],
4342 		    addr + i * MAXMACADDRLEN, ETHERADDRL);
4343 	}
4344 
4345 	mutex_exit(nxgep->genlock);
4346 }
4347 
4348 
4349 static boolean_t
4350 nxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
4351 {
4352 	nxge_t *nxgep = arg;
4353 	uint32_t *txflags = cap_data;
4354 
4355 	switch (cap) {
4356 	case MAC_CAPAB_HCKSUM:
4357 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4358 		    "==> nxge_m_getcapab: checksum %d", nxge_cksum_offload));
4359 		if (nxge_cksum_offload <= 1) {
4360 			*txflags = HCKSUM_INET_PARTIAL;
4361 		}
4362 		break;
4363 
4364 	case MAC_CAPAB_MULTIFACTADDR: {
4365 		mac_capab_multifactaddr_t	*mfacp = cap_data;
4366 
4367 		if (!isLDOMguest(nxgep)) {
4368 			mutex_enter(nxgep->genlock);
4369 			mfacp->mcm_naddr =
4370 			    nxgep->nxge_mmac_info.num_factory_mmac;
4371 			mfacp->mcm_getaddr = nxge_m_getfactaddr;
4372 			mutex_exit(nxgep->genlock);
4373 		}
4374 		break;
4375 	}
4376 
4377 	case MAC_CAPAB_LSO: {
4378 		mac_capab_lso_t *cap_lso = cap_data;
4379 
4380 		if (nxgep->soft_lso_enable) {
4381 			if (nxge_cksum_offload <= 1) {
4382 				cap_lso->lso_flags = LSO_TX_BASIC_TCP_IPV4;
4383 				if (nxge_lso_max > NXGE_LSO_MAXLEN) {
4384 					nxge_lso_max = NXGE_LSO_MAXLEN;
4385 				}
4386 				cap_lso->lso_basic_tcp_ipv4.lso_max =
4387 				    nxge_lso_max;
4388 			}
4389 			break;
4390 		} else {
4391 			return (B_FALSE);
4392 		}
4393 	}
4394 
4395 	case MAC_CAPAB_RINGS: {
4396 		mac_capab_rings_t	*cap_rings = cap_data;
4397 		p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
4398 
4399 		mutex_enter(nxgep->genlock);
4400 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
4401 			if (isLDOMguest(nxgep))	 {
4402 				cap_rings->mr_group_type =
4403 				    MAC_GROUP_TYPE_STATIC;
4404 				cap_rings->mr_rnum =
4405 				    NXGE_HIO_SHARE_MAX_CHANNELS;
4406 				cap_rings->mr_rget = nxge_fill_ring;
4407 				cap_rings->mr_gnum = 1;
4408 				cap_rings->mr_gget = nxge_hio_group_get;
4409 				cap_rings->mr_gaddring = NULL;
4410 				cap_rings->mr_gremring = NULL;
4411 			} else {
4412 				/*
4413 				 * Service Domain.
4414 				 */
4415 				cap_rings->mr_group_type =
4416 				    MAC_GROUP_TYPE_DYNAMIC;
4417 				cap_rings->mr_rnum = p_cfgp->max_rdcs;
4418 				cap_rings->mr_rget = nxge_fill_ring;
4419 				cap_rings->mr_gnum = p_cfgp->max_rdc_grpids;
4420 				cap_rings->mr_gget = nxge_hio_group_get;
4421 				cap_rings->mr_gaddring = nxge_group_add_ring;
4422 				cap_rings->mr_gremring = nxge_group_rem_ring;
4423 			}
4424 
4425 			NXGE_DEBUG_MSG((nxgep, RX_CTL,
4426 			    "==> nxge_m_getcapab: rx nrings[%d] ngroups[%d]",
4427 			    p_cfgp->max_rdcs, p_cfgp->max_rdc_grpids));
4428 		} else {
4429 			/*
4430 			 * TX Rings.
4431 			 */
4432 			if (isLDOMguest(nxgep)) {
4433 				cap_rings->mr_group_type =
4434 				    MAC_GROUP_TYPE_STATIC;
4435 				cap_rings->mr_rnum =
4436 				    NXGE_HIO_SHARE_MAX_CHANNELS;
4437 				cap_rings->mr_rget = nxge_fill_ring;
4438 				cap_rings->mr_gnum = 0;
4439 				cap_rings->mr_gget = NULL;
4440 				cap_rings->mr_gaddring = NULL;
4441 				cap_rings->mr_gremring = NULL;
4442 			} else {
4443 				/*
4444 				 * Service Domain.
4445 				 */
4446 				cap_rings->mr_group_type =
4447 				    MAC_GROUP_TYPE_DYNAMIC;
4448 				cap_rings->mr_rnum = p_cfgp->tdc.count;
4449 				cap_rings->mr_rget = nxge_fill_ring;
4450 
4451 				/*
4452 				 * Share capable.
4453 				 *
4454 				 * Do not report the default group: hence -1
4455 				 */
4456 				cap_rings->mr_gnum =
4457 				    NXGE_MAX_TDC_GROUPS / nxgep->nports - 1;
4458 				cap_rings->mr_gget = nxge_hio_group_get;
4459 				cap_rings->mr_gaddring = nxge_group_add_ring;
4460 				cap_rings->mr_gremring = nxge_group_rem_ring;
4461 			}
4462 
4463 			NXGE_DEBUG_MSG((nxgep, TX_CTL,
4464 			    "==> nxge_m_getcapab: tx rings # of rings %d",
4465 			    p_cfgp->tdc.count));
4466 		}
4467 		mutex_exit(nxgep->genlock);
4468 		break;
4469 	}
4470 
4471 #if defined(sun4v)
4472 	case MAC_CAPAB_SHARES: {
4473 		mac_capab_share_t *mshares = (mac_capab_share_t *)cap_data;
4474 
4475 		/*
4476 		 * Only the service domain driver responds to
4477 		 * this capability request.
4478 		 */
4479 		mutex_enter(nxgep->genlock);
4480 		if (isLDOMservice(nxgep)) {
4481 			mshares->ms_snum = 3;
4482 			mshares->ms_handle = (void *)nxgep;
4483 			mshares->ms_salloc = nxge_hio_share_alloc;
4484 			mshares->ms_sfree = nxge_hio_share_free;
4485 			mshares->ms_sadd = nxge_hio_share_add_group;
4486 			mshares->ms_sremove = nxge_hio_share_rem_group;
4487 			mshares->ms_squery = nxge_hio_share_query;
4488 			mshares->ms_sbind = nxge_hio_share_bind;
4489 			mshares->ms_sunbind = nxge_hio_share_unbind;
4490 			mutex_exit(nxgep->genlock);
4491 		} else {
4492 			mutex_exit(nxgep->genlock);
4493 			return (B_FALSE);
4494 		}
4495 		break;
4496 	}
4497 #endif
4498 	default:
4499 		return (B_FALSE);
4500 	}
4501 	return (B_TRUE);
4502 }
4503 
4504 static boolean_t
4505 nxge_param_locked(mac_prop_id_t pr_num)
4506 {
4507 	/*
4508 	 * All adv_* parameters are locked (read-only) while
4509 	 * the device is in any sort of loopback mode ...
4510 	 */
4511 	switch (pr_num) {
4512 		case MAC_PROP_ADV_1000FDX_CAP:
4513 		case MAC_PROP_EN_1000FDX_CAP:
4514 		case MAC_PROP_ADV_1000HDX_CAP:
4515 		case MAC_PROP_EN_1000HDX_CAP:
4516 		case MAC_PROP_ADV_100FDX_CAP:
4517 		case MAC_PROP_EN_100FDX_CAP:
4518 		case MAC_PROP_ADV_100HDX_CAP:
4519 		case MAC_PROP_EN_100HDX_CAP:
4520 		case MAC_PROP_ADV_10FDX_CAP:
4521 		case MAC_PROP_EN_10FDX_CAP:
4522 		case MAC_PROP_ADV_10HDX_CAP:
4523 		case MAC_PROP_EN_10HDX_CAP:
4524 		case MAC_PROP_AUTONEG:
4525 		case MAC_PROP_FLOWCTRL:
4526 			return (B_TRUE);
4527 	}
4528 	return (B_FALSE);
4529 }
4530 
4531 /*
4532  * callback functions for set/get of properties
4533  */
4534 static int
4535 nxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4536     uint_t pr_valsize, const void *pr_val)
4537 {
4538 	nxge_t		*nxgep = barg;
4539 	p_nxge_param_t	param_arr = nxgep->param_arr;
4540 	p_nxge_stats_t	statsp = nxgep->statsp;
4541 	int		err = 0;
4542 
4543 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_setprop"));
4544 
4545 	mutex_enter(nxgep->genlock);
4546 	if (statsp->port_stats.lb_mode != nxge_lb_normal &&
4547 	    nxge_param_locked(pr_num)) {
4548 		/*
4549 		 * All adv_* parameters are locked (read-only)
4550 		 * while the device is in any sort of loopback mode.
4551 		 */
4552 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4553 		    "==> nxge_m_setprop: loopback mode: read only"));
4554 		mutex_exit(nxgep->genlock);
4555 		return (EBUSY);
4556 	}
4557 
4558 	switch (pr_num) {
4559 	case MAC_PROP_EN_1000FDX_CAP:
4560 		nxgep->param_en_1000fdx =
4561 		    param_arr[param_anar_1000fdx].value = *(uint8_t *)pr_val;
4562 		goto reprogram;
4563 
4564 	case MAC_PROP_EN_100FDX_CAP:
4565 		nxgep->param_en_100fdx =
4566 		    param_arr[param_anar_100fdx].value = *(uint8_t *)pr_val;
4567 		goto reprogram;
4568 
4569 	case MAC_PROP_EN_10FDX_CAP:
4570 		nxgep->param_en_10fdx =
4571 		    param_arr[param_anar_10fdx].value = *(uint8_t *)pr_val;
4572 		goto reprogram;
4573 
4574 	case MAC_PROP_AUTONEG:
4575 		param_arr[param_autoneg].value = *(uint8_t *)pr_val;
4576 		goto reprogram;
4577 
4578 	case MAC_PROP_MTU: {
4579 		uint32_t cur_mtu, new_mtu, old_framesize;
4580 
4581 		cur_mtu = nxgep->mac.default_mtu;
4582 		ASSERT(pr_valsize >= sizeof (new_mtu));
4583 		bcopy(pr_val, &new_mtu, sizeof (new_mtu));
4584 
4585 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4586 		    "==> nxge_m_setprop: set MTU: %d is_jumbo %d",
4587 		    new_mtu, nxgep->mac.is_jumbo));
4588 
4589 		if (new_mtu == cur_mtu) {
4590 			err = 0;
4591 			break;
4592 		}
4593 
4594 		if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
4595 			err = EBUSY;
4596 			break;
4597 		}
4598 
4599 		if ((new_mtu < NXGE_DEFAULT_MTU) ||
4600 		    (new_mtu > NXGE_MAXIMUM_MTU)) {
4601 			err = EINVAL;
4602 			break;
4603 		}
4604 
4605 		old_framesize = (uint32_t)nxgep->mac.maxframesize;
4606 		nxgep->mac.maxframesize = (uint16_t)
4607 		    (new_mtu + NXGE_EHEADER_VLAN_CRC);
4608 		if (nxge_mac_set_framesize(nxgep)) {
4609 			nxgep->mac.maxframesize =
4610 			    (uint16_t)old_framesize;
4611 			err = EINVAL;
4612 			break;
4613 		}
4614 
4615 		nxgep->mac.default_mtu = new_mtu;
4616 		nxgep->mac.is_jumbo = (new_mtu > NXGE_DEFAULT_MTU);
4617 
4618 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4619 		    "==> nxge_m_setprop: set MTU: %d maxframe %d",
4620 		    new_mtu, nxgep->mac.maxframesize));
4621 		break;
4622 	}
4623 
4624 	case MAC_PROP_FLOWCTRL: {
4625 		link_flowctrl_t	fl;
4626 
4627 		ASSERT(pr_valsize >= sizeof (fl));
4628 		bcopy(pr_val, &fl, sizeof (fl));
4629 
4630 		switch (fl) {
4631 		case LINK_FLOWCTRL_NONE:
4632 			param_arr[param_anar_pause].value = 0;
4633 			break;
4634 
4635 		case LINK_FLOWCTRL_RX:
4636 			param_arr[param_anar_pause].value = 1;
4637 			break;
4638 
4639 		case LINK_FLOWCTRL_TX:
4640 		case LINK_FLOWCTRL_BI:
4641 			err = EINVAL;
4642 			break;
4643 		default:
4644 			err = EINVAL;
4645 			break;
4646 		}
4647 reprogram:
4648 		if ((err == 0) && !isLDOMguest(nxgep)) {
4649 			if (!nxge_param_link_update(nxgep)) {
4650 				err = EINVAL;
4651 			}
4652 		} else {
4653 			err = EINVAL;
4654 		}
4655 		break;
4656 	}
4657 
4658 	case MAC_PROP_PRIVATE:
4659 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4660 		    "==> nxge_m_setprop: private property"));
4661 		err = nxge_set_priv_prop(nxgep, pr_name, pr_valsize, pr_val);
4662 		break;
4663 
4664 	default:
4665 		err = ENOTSUP;
4666 		break;
4667 	}
4668 
4669 	mutex_exit(nxgep->genlock);
4670 
4671 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4672 	    "<== nxge_m_setprop (return %d)", err));
4673 	return (err);
4674 }
4675 
4676 static int
4677 nxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4678     uint_t pr_valsize, void *pr_val)
4679 {
4680 	nxge_t		*nxgep = barg;
4681 	p_nxge_param_t	param_arr = nxgep->param_arr;
4682 	p_nxge_stats_t	statsp = nxgep->statsp;
4683 
4684 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4685 	    "==> nxge_m_getprop: pr_num %d", pr_num));
4686 
4687 	switch (pr_num) {
4688 	case MAC_PROP_DUPLEX:
4689 		*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
4690 		break;
4691 
4692 	case MAC_PROP_SPEED: {
4693 		uint64_t val = statsp->mac_stats.link_speed * 1000000ull;
4694 
4695 		ASSERT(pr_valsize >= sizeof (val));
4696 		bcopy(&val, pr_val, sizeof (val));
4697 		break;
4698 	}
4699 
4700 	case MAC_PROP_STATUS: {
4701 		link_state_t state = statsp->mac_stats.link_up ?
4702 		    LINK_STATE_UP : LINK_STATE_DOWN;
4703 
4704 		ASSERT(pr_valsize >= sizeof (state));
4705 		bcopy(&state, pr_val, sizeof (state));
4706 		break;
4707 	}
4708 
4709 	case MAC_PROP_AUTONEG:
4710 		*(uint8_t *)pr_val = param_arr[param_autoneg].value;
4711 		break;
4712 
4713 	case MAC_PROP_FLOWCTRL: {
4714 		link_flowctrl_t fl = param_arr[param_anar_pause].value != 0 ?
4715 		    LINK_FLOWCTRL_RX : LINK_FLOWCTRL_NONE;
4716 
4717 		ASSERT(pr_valsize >= sizeof (fl));
4718 		bcopy(&fl, pr_val, sizeof (fl));
4719 		break;
4720 	}
4721 
4722 	case MAC_PROP_ADV_1000FDX_CAP:
4723 		*(uint8_t *)pr_val = param_arr[param_anar_1000fdx].value;
4724 		break;
4725 
4726 	case MAC_PROP_EN_1000FDX_CAP:
4727 		*(uint8_t *)pr_val = nxgep->param_en_1000fdx;
4728 		break;
4729 
4730 	case MAC_PROP_ADV_100FDX_CAP:
4731 		*(uint8_t *)pr_val = param_arr[param_anar_100fdx].value;
4732 		break;
4733 
4734 	case MAC_PROP_EN_100FDX_CAP:
4735 		*(uint8_t *)pr_val = nxgep->param_en_100fdx;
4736 		break;
4737 
4738 	case MAC_PROP_ADV_10FDX_CAP:
4739 		*(uint8_t *)pr_val = param_arr[param_anar_10fdx].value;
4740 		break;
4741 
4742 	case MAC_PROP_EN_10FDX_CAP:
4743 		*(uint8_t *)pr_val = nxgep->param_en_10fdx;
4744 		break;
4745 
4746 	case MAC_PROP_PRIVATE:
4747 		return (nxge_get_priv_prop(nxgep, pr_name, pr_valsize,
4748 		    pr_val));
4749 
4750 	default:
4751 		return (ENOTSUP);
4752 	}
4753 
4754 	return (0);
4755 }
4756 
4757 static void
4758 nxge_m_propinfo(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4759     mac_prop_info_handle_t prh)
4760 {
4761 	nxge_t		*nxgep = barg;
4762 	p_nxge_stats_t	statsp = nxgep->statsp;
4763 
4764 	/*
4765 	 * By default permissions are read/write unless specified
4766 	 * otherwise by the driver.
4767 	 */
4768 
4769 	switch (pr_num) {
4770 	case MAC_PROP_DUPLEX:
4771 	case MAC_PROP_SPEED:
4772 	case MAC_PROP_STATUS:
4773 	case MAC_PROP_EN_1000HDX_CAP:
4774 	case MAC_PROP_EN_100HDX_CAP:
4775 	case MAC_PROP_EN_10HDX_CAP:
4776 	case MAC_PROP_ADV_1000FDX_CAP:
4777 	case MAC_PROP_ADV_1000HDX_CAP:
4778 	case MAC_PROP_ADV_100FDX_CAP:
4779 	case MAC_PROP_ADV_100HDX_CAP:
4780 	case MAC_PROP_ADV_10FDX_CAP:
4781 	case MAC_PROP_ADV_10HDX_CAP:
4782 		/*
4783 		 * Note that read-only properties don't need to
4784 		 * provide default values since they cannot be
4785 		 * changed by the administrator.
4786 		 */
4787 		mac_prop_info_set_perm(prh, MAC_PROP_PERM_READ);
4788 		break;
4789 
4790 	case MAC_PROP_EN_1000FDX_CAP:
4791 	case MAC_PROP_EN_100FDX_CAP:
4792 	case MAC_PROP_EN_10FDX_CAP:
4793 		mac_prop_info_set_default_uint8(prh, 1);
4794 		break;
4795 
4796 	case MAC_PROP_AUTONEG:
4797 		mac_prop_info_set_default_uint8(prh, 1);
4798 		break;
4799 
4800 	case MAC_PROP_FLOWCTRL:
4801 		mac_prop_info_set_default_link_flowctrl(prh, LINK_FLOWCTRL_RX);
4802 		break;
4803 
4804 	case MAC_PROP_MTU:
4805 		mac_prop_info_set_range_uint32(prh,
4806 		    NXGE_DEFAULT_MTU, NXGE_MAXIMUM_MTU);
4807 		break;
4808 
4809 	case MAC_PROP_PRIVATE:
4810 		nxge_priv_propinfo(pr_name, prh);
4811 		break;
4812 	}
4813 
4814 	mutex_enter(nxgep->genlock);
4815 	if (statsp->port_stats.lb_mode != nxge_lb_normal &&
4816 	    nxge_param_locked(pr_num)) {
4817 		/*
4818 		 * Some properties are locked (read-only) while the
4819 		 * device is in any sort of loopback mode.
4820 		 */
4821 		mac_prop_info_set_perm(prh, MAC_PROP_PERM_READ);
4822 	}
4823 	mutex_exit(nxgep->genlock);
4824 }
4825 
4826 static void
4827 nxge_priv_propinfo(const char *pr_name, mac_prop_info_handle_t prh)
4828 {
4829 	char valstr[64];
4830 
4831 	bzero(valstr, sizeof (valstr));
4832 
4833 	if (strcmp(pr_name, "_function_number") == 0 ||
4834 	    strcmp(pr_name, "_fw_version") == 0 ||
4835 	    strcmp(pr_name, "_port_mode") == 0 ||
4836 	    strcmp(pr_name, "_hot_swap_phy") == 0) {
4837 		mac_prop_info_set_perm(prh, MAC_PROP_PERM_READ);
4838 
4839 	} else if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
4840 		(void) snprintf(valstr, sizeof (valstr),
4841 		    "%d", RXDMA_RCR_TO_DEFAULT);
4842 
4843 	} else if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
4844 		(void) snprintf(valstr, sizeof (valstr),
4845 		    "%d", RXDMA_RCR_PTHRES_DEFAULT);
4846 
4847 	} else	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0 ||
4848 	    strcmp(pr_name, "_class_opt_ipv4_udp") == 0 ||
4849 	    strcmp(pr_name, "_class_opt_ipv4_ah") == 0 ||
4850 	    strcmp(pr_name, "_class_opt_ipv4_sctp") == 0 ||
4851 	    strcmp(pr_name, "_class_opt_ipv6_tcp") == 0 ||
4852 	    strcmp(pr_name, "_class_opt_ipv6_udp") == 0 ||
4853 	    strcmp(pr_name, "_class_opt_ipv6_ah") == 0 ||
4854 	    strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
4855 		(void) snprintf(valstr, sizeof (valstr), "%x",
4856 		    NXGE_CLASS_FLOW_GEN_SERVER);
4857 
4858 	} else if (strcmp(pr_name, "_soft_lso_enable") == 0) {
4859 		(void) snprintf(valstr, sizeof (valstr), "%d", 0);
4860 
4861 	} else	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
4862 		(void) snprintf(valstr, sizeof (valstr), "%d", 1);
4863 
4864 	} else if (strcmp(pr_name, "_adv_pause_cap") == 0) {
4865 		(void) snprintf(valstr, sizeof (valstr), "%d", 1);
4866 	}
4867 
4868 	if (strlen(valstr) > 0)
4869 		mac_prop_info_set_default_str(prh, valstr);
4870 }
4871 
4872 /* ARGSUSED */
4873 static int
4874 nxge_set_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_valsize,
4875     const void *pr_val)
4876 {
4877 	p_nxge_param_t	param_arr = nxgep->param_arr;
4878 	int		err = 0;
4879 	long		result;
4880 
4881 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4882 	    "==> nxge_set_priv_prop: name %s", pr_name));
4883 
4884 	/* Blanking */
4885 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
4886 		err = nxge_param_rx_intr_time(nxgep, NULL, NULL,
4887 		    (char *)pr_val,
4888 		    (caddr_t)&param_arr[param_rxdma_intr_time]);
4889 		if (err) {
4890 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4891 			    "<== nxge_set_priv_prop: "
4892 			    "unable to set (%s)", pr_name));
4893 			err = EINVAL;
4894 		} else {
4895 			err = 0;
4896 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4897 			    "<== nxge_set_priv_prop: "
4898 			    "set (%s)", pr_name));
4899 		}
4900 
4901 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4902 		    "<== nxge_set_priv_prop: name %s (value %d)",
4903 		    pr_name, result));
4904 
4905 		return (err);
4906 	}
4907 
4908 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
4909 		err = nxge_param_rx_intr_pkts(nxgep, NULL, NULL,
4910 		    (char *)pr_val,
4911 		    (caddr_t)&param_arr[param_rxdma_intr_pkts]);
4912 		if (err) {
4913 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4914 			    "<== nxge_set_priv_prop: "
4915 			    "unable to set (%s)", pr_name));
4916 			err = EINVAL;
4917 		} else {
4918 			err = 0;
4919 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4920 			    "<== nxge_set_priv_prop: "
4921 			    "set (%s)", pr_name));
4922 		}
4923 
4924 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4925 		    "<== nxge_set_priv_prop: name %s (value %d)",
4926 		    pr_name, result));
4927 
4928 		return (err);
4929 	}
4930 
4931 	/* Classification */
4932 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
4933 		if (pr_val == NULL) {
4934 			err = EINVAL;
4935 			return (err);
4936 		}
4937 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4938 
4939 		err = nxge_param_set_ip_opt(nxgep, NULL,
4940 		    NULL, (char *)pr_val,
4941 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
4942 
4943 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4944 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4945 		    pr_name, result));
4946 
4947 		return (err);
4948 	}
4949 
4950 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
4951 		if (pr_val == NULL) {
4952 			err = EINVAL;
4953 			return (err);
4954 		}
4955 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4956 
4957 		err = nxge_param_set_ip_opt(nxgep, NULL,
4958 		    NULL, (char *)pr_val,
4959 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
4960 
4961 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4962 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4963 		    pr_name, result));
4964 
4965 		return (err);
4966 	}
4967 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
4968 		if (pr_val == NULL) {
4969 			err = EINVAL;
4970 			return (err);
4971 		}
4972 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4973 
4974 		err = nxge_param_set_ip_opt(nxgep, NULL,
4975 		    NULL, (char *)pr_val,
4976 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
4977 
4978 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4979 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4980 		    pr_name, result));
4981 
4982 		return (err);
4983 	}
4984 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
4985 		if (pr_val == NULL) {
4986 			err = EINVAL;
4987 			return (err);
4988 		}
4989 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4990 
4991 		err = nxge_param_set_ip_opt(nxgep, NULL,
4992 		    NULL, (char *)pr_val,
4993 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
4994 
4995 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4996 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4997 		    pr_name, result));
4998 
4999 		return (err);
5000 	}
5001 
5002 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
5003 		if (pr_val == NULL) {
5004 			err = EINVAL;
5005 			return (err);
5006 		}
5007 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
5008 
5009 		err = nxge_param_set_ip_opt(nxgep, NULL,
5010 		    NULL, (char *)pr_val,
5011 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
5012 
5013 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5014 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
5015 		    pr_name, result));
5016 
5017 		return (err);
5018 	}
5019 
5020 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
5021 		if (pr_val == NULL) {
5022 			err = EINVAL;
5023 			return (err);
5024 		}
5025 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
5026 
5027 		err = nxge_param_set_ip_opt(nxgep, NULL,
5028 		    NULL, (char *)pr_val,
5029 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
5030 
5031 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5032 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
5033 		    pr_name, result));
5034 
5035 		return (err);
5036 	}
5037 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
5038 		if (pr_val == NULL) {
5039 			err = EINVAL;
5040 			return (err);
5041 		}
5042 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
5043 
5044 		err = nxge_param_set_ip_opt(nxgep, NULL,
5045 		    NULL, (char *)pr_val,
5046 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
5047 
5048 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5049 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
5050 		    pr_name, result));
5051 
5052 		return (err);
5053 	}
5054 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
5055 		if (pr_val == NULL) {
5056 			err = EINVAL;
5057 			return (err);
5058 		}
5059 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
5060 
5061 		err = nxge_param_set_ip_opt(nxgep, NULL,
5062 		    NULL, (char *)pr_val,
5063 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
5064 
5065 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5066 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
5067 		    pr_name, result));
5068 
5069 		return (err);
5070 	}
5071 
5072 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
5073 		if (pr_val == NULL) {
5074 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5075 			    "==> nxge_set_priv_prop: name %s (null)", pr_name));
5076 			err = EINVAL;
5077 			return (err);
5078 		}
5079 
5080 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
5081 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5082 		    "<== nxge_set_priv_prop: name %s "
5083 		    "(lso %d pr_val %s value %d)",
5084 		    pr_name, nxgep->soft_lso_enable, pr_val, result));
5085 
5086 		if (result > 1 || result < 0) {
5087 			err = EINVAL;
5088 		} else {
5089 			if (nxgep->soft_lso_enable == (uint32_t)result) {
5090 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5091 				    "no change (%d %d)",
5092 				    nxgep->soft_lso_enable, result));
5093 				return (0);
5094 			}
5095 		}
5096 
5097 		nxgep->soft_lso_enable = (int)result;
5098 
5099 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5100 		    "<== nxge_set_priv_prop: name %s (value %d)",
5101 		    pr_name, result));
5102 
5103 		return (err);
5104 	}
5105 	/*
5106 	 * Commands like "ndd -set /dev/nxge0 adv_10gfdx_cap 1" cause the
5107 	 * following code to be executed.
5108 	 */
5109 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5110 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
5111 		    (caddr_t)&param_arr[param_anar_10gfdx]);
5112 		return (err);
5113 	}
5114 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5115 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
5116 		    (caddr_t)&param_arr[param_anar_pause]);
5117 		return (err);
5118 	}
5119 
5120 	return (ENOTSUP);
5121 }
5122 
5123 static int
5124 nxge_get_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_valsize,
5125     void *pr_val)
5126 {
5127 	p_nxge_param_t	param_arr = nxgep->param_arr;
5128 	char		valstr[MAXNAMELEN];
5129 	int		err = ENOTSUP;
5130 	uint_t		strsize;
5131 
5132 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5133 	    "==> nxge_get_priv_prop: property %s", pr_name));
5134 
5135 	/* function number */
5136 	if (strcmp(pr_name, "_function_number") == 0) {
5137 		(void) snprintf(valstr, sizeof (valstr), "%d",
5138 		    nxgep->function_num);
5139 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5140 		    "==> nxge_get_priv_prop: name %s "
5141 		    "(value %d valstr %s)",
5142 		    pr_name, nxgep->function_num, valstr));
5143 
5144 		err = 0;
5145 		goto done;
5146 	}
5147 
5148 	/* Neptune firmware version */
5149 	if (strcmp(pr_name, "_fw_version") == 0) {
5150 		(void) snprintf(valstr, sizeof (valstr), "%s",
5151 		    nxgep->vpd_info.ver);
5152 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5153 		    "==> nxge_get_priv_prop: name %s "
5154 		    "(value %d valstr %s)",
5155 		    pr_name, nxgep->vpd_info.ver, valstr));
5156 
5157 		err = 0;
5158 		goto done;
5159 	}
5160 
5161 	/* port PHY mode */
5162 	if (strcmp(pr_name, "_port_mode") == 0) {
5163 		switch (nxgep->mac.portmode) {
5164 		case PORT_1G_COPPER:
5165 			(void) snprintf(valstr, sizeof (valstr), "1G copper %s",
5166 			    nxgep->hot_swappable_phy ?
5167 			    "[Hot Swappable]" : "");
5168 			break;
5169 		case PORT_1G_FIBER:
5170 			(void) snprintf(valstr, sizeof (valstr), "1G fiber %s",
5171 			    nxgep->hot_swappable_phy ?
5172 			    "[hot swappable]" : "");
5173 			break;
5174 		case PORT_10G_COPPER:
5175 			(void) snprintf(valstr, sizeof (valstr),
5176 			    "10G copper %s",
5177 			    nxgep->hot_swappable_phy ?
5178 			    "[hot swappable]" : "");
5179 			break;
5180 		case PORT_10G_FIBER:
5181 			(void) snprintf(valstr, sizeof (valstr), "10G fiber %s",
5182 			    nxgep->hot_swappable_phy ?
5183 			    "[hot swappable]" : "");
5184 			break;
5185 		case PORT_10G_SERDES:
5186 			(void) snprintf(valstr, sizeof (valstr),
5187 			    "10G serdes %s", nxgep->hot_swappable_phy ?
5188 			    "[hot swappable]" : "");
5189 			break;
5190 		case PORT_1G_SERDES:
5191 			(void) snprintf(valstr, sizeof (valstr), "1G serdes %s",
5192 			    nxgep->hot_swappable_phy ?
5193 			    "[hot swappable]" : "");
5194 			break;
5195 		case PORT_1G_TN1010:
5196 			(void) snprintf(valstr, sizeof (valstr),
5197 			    "1G TN1010 copper %s", nxgep->hot_swappable_phy ?
5198 			    "[hot swappable]" : "");
5199 			break;
5200 		case PORT_10G_TN1010:
5201 			(void) snprintf(valstr, sizeof (valstr),
5202 			    "10G TN1010 copper %s", nxgep->hot_swappable_phy ?
5203 			    "[hot swappable]" : "");
5204 			break;
5205 		case PORT_1G_RGMII_FIBER:
5206 			(void) snprintf(valstr, sizeof (valstr),
5207 			    "1G rgmii fiber %s", nxgep->hot_swappable_phy ?
5208 			    "[hot swappable]" : "");
5209 			break;
5210 		case PORT_HSP_MODE:
5211 			(void) snprintf(valstr, sizeof (valstr),
5212 			    "phy not present[hot swappable]");
5213 			break;
5214 		default:
5215 			(void) snprintf(valstr, sizeof (valstr), "unknown %s",
5216 			    nxgep->hot_swappable_phy ?
5217 			    "[hot swappable]" : "");
5218 			break;
5219 		}
5220 
5221 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5222 		    "==> nxge_get_priv_prop: name %s (value %s)",
5223 		    pr_name, valstr));
5224 
5225 		err = 0;
5226 		goto done;
5227 	}
5228 
5229 	/* Hot swappable PHY */
5230 	if (strcmp(pr_name, "_hot_swap_phy") == 0) {
5231 		(void) snprintf(valstr, sizeof (valstr), "%s",
5232 		    nxgep->hot_swappable_phy ?
5233 		    "yes" : "no");
5234 
5235 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5236 		    "==> nxge_get_priv_prop: name %s "
5237 		    "(value %d valstr %s)",
5238 		    pr_name, nxgep->hot_swappable_phy, valstr));
5239 
5240 		err = 0;
5241 		goto done;
5242 	}
5243 
5244 
5245 	/* Receive Interrupt Blanking Parameters */
5246 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
5247 		err = 0;
5248 		(void) snprintf(valstr, sizeof (valstr), "%d",
5249 		    nxgep->intr_timeout);
5250 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5251 		    "==> nxge_get_priv_prop: name %s (value %d)",
5252 		    pr_name,
5253 		    (uint32_t)nxgep->intr_timeout));
5254 		goto done;
5255 	}
5256 
5257 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
5258 		err = 0;
5259 		(void) snprintf(valstr, sizeof (valstr), "%d",
5260 		    nxgep->intr_threshold);
5261 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5262 		    "==> nxge_get_priv_prop: name %s (value %d)",
5263 		    pr_name, (uint32_t)nxgep->intr_threshold));
5264 
5265 		goto done;
5266 	}
5267 
5268 	/* Classification and Load Distribution Configuration */
5269 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
5270 		err = nxge_dld_get_ip_opt(nxgep,
5271 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
5272 
5273 		(void) snprintf(valstr, sizeof (valstr), "%x",
5274 		    (int)param_arr[param_class_opt_ipv4_tcp].value);
5275 
5276 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5277 		    "==> nxge_get_priv_prop: %s", valstr));
5278 		goto done;
5279 	}
5280 
5281 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
5282 		err = nxge_dld_get_ip_opt(nxgep,
5283 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
5284 
5285 		(void) snprintf(valstr, sizeof (valstr), "%x",
5286 		    (int)param_arr[param_class_opt_ipv4_udp].value);
5287 
5288 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5289 		    "==> nxge_get_priv_prop: %s", valstr));
5290 		goto done;
5291 	}
5292 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
5293 		err = nxge_dld_get_ip_opt(nxgep,
5294 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
5295 
5296 		(void) snprintf(valstr, sizeof (valstr), "%x",
5297 		    (int)param_arr[param_class_opt_ipv4_ah].value);
5298 
5299 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5300 		    "==> nxge_get_priv_prop: %s", valstr));
5301 		goto done;
5302 	}
5303 
5304 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
5305 		err = nxge_dld_get_ip_opt(nxgep,
5306 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
5307 
5308 		(void) snprintf(valstr, sizeof (valstr), "%x",
5309 		    (int)param_arr[param_class_opt_ipv4_sctp].value);
5310 
5311 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5312 		    "==> nxge_get_priv_prop: %s", valstr));
5313 		goto done;
5314 	}
5315 
5316 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
5317 		err = nxge_dld_get_ip_opt(nxgep,
5318 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
5319 
5320 		(void) snprintf(valstr, sizeof (valstr), "%x",
5321 		    (int)param_arr[param_class_opt_ipv6_tcp].value);
5322 
5323 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5324 		    "==> nxge_get_priv_prop: %s", valstr));
5325 		goto done;
5326 	}
5327 
5328 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
5329 		err = nxge_dld_get_ip_opt(nxgep,
5330 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
5331 
5332 		(void) snprintf(valstr, sizeof (valstr), "%x",
5333 		    (int)param_arr[param_class_opt_ipv6_udp].value);
5334 
5335 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5336 		    "==> nxge_get_priv_prop: %s", valstr));
5337 		goto done;
5338 	}
5339 
5340 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
5341 		err = nxge_dld_get_ip_opt(nxgep,
5342 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
5343 
5344 		(void) snprintf(valstr, sizeof (valstr), "%x",
5345 		    (int)param_arr[param_class_opt_ipv6_ah].value);
5346 
5347 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5348 		    "==> nxge_get_priv_prop: %s", valstr));
5349 		goto done;
5350 	}
5351 
5352 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
5353 		err = nxge_dld_get_ip_opt(nxgep,
5354 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
5355 
5356 		(void) snprintf(valstr, sizeof (valstr), "%x",
5357 		    (int)param_arr[param_class_opt_ipv6_sctp].value);
5358 
5359 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5360 		    "==> nxge_get_priv_prop: %s", valstr));
5361 		goto done;
5362 	}
5363 
5364 	/* Software LSO */
5365 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
5366 		(void) snprintf(valstr, sizeof (valstr),
5367 		    "%d", nxgep->soft_lso_enable);
5368 		err = 0;
5369 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5370 		    "==> nxge_get_priv_prop: name %s (value %d)",
5371 		    pr_name, nxgep->soft_lso_enable));
5372 
5373 		goto done;
5374 	}
5375 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5376 		err = 0;
5377 		if (nxgep->param_arr[param_anar_10gfdx].value != 0) {
5378 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5379 			goto done;
5380 		} else {
5381 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5382 			goto done;
5383 		}
5384 	}
5385 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5386 		err = 0;
5387 		if (nxgep->param_arr[param_anar_pause].value != 0) {
5388 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5389 			goto done;
5390 		} else {
5391 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5392 			goto done;
5393 		}
5394 	}
5395 
5396 done:
5397 	if (err == 0) {
5398 		strsize = (uint_t)strlen(valstr);
5399 		if (pr_valsize < strsize) {
5400 			err = ENOBUFS;
5401 		} else {
5402 			(void) strlcpy(pr_val, valstr, pr_valsize);
5403 		}
5404 	}
5405 
5406 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5407 	    "<== nxge_get_priv_prop: return %d", err));
5408 	return (err);
5409 }
5410 
5411 /*
5412  * Module loading and removing entry points.
5413  */
5414 
5415 DDI_DEFINE_STREAM_OPS(nxge_dev_ops, nulldev, nulldev, nxge_attach, nxge_detach,
5416     nodev, NULL, D_MP, NULL, nxge_quiesce);
5417 
5418 #define	NXGE_DESC_VER		"Sun NIU 10Gb Ethernet"
5419 
5420 /*
5421  * Module linkage information for the kernel.
5422  */
5423 static struct modldrv	nxge_modldrv = {
5424 	&mod_driverops,
5425 	NXGE_DESC_VER,
5426 	&nxge_dev_ops
5427 };
5428 
5429 static struct modlinkage modlinkage = {
5430 	MODREV_1, (void *) &nxge_modldrv, NULL
5431 };
5432 
5433 int
5434 _init(void)
5435 {
5436 	int		status;
5437 
5438 	MUTEX_INIT(&nxgedebuglock, NULL, MUTEX_DRIVER, NULL);
5439 
5440 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
5441 
5442 	mac_init_ops(&nxge_dev_ops, "nxge");
5443 
5444 	status = ddi_soft_state_init(&nxge_list, sizeof (nxge_t), 0);
5445 	if (status != 0) {
5446 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL,
5447 		    "failed to init device soft state"));
5448 		goto _init_exit;
5449 	}
5450 
5451 	status = mod_install(&modlinkage);
5452 	if (status != 0) {
5453 		ddi_soft_state_fini(&nxge_list);
5454 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL, "Mod install failed"));
5455 		goto _init_exit;
5456 	}
5457 
5458 	MUTEX_INIT(&nxge_common_lock, NULL, MUTEX_DRIVER, NULL);
5459 
5460 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "<== _init status = 0x%X", status));
5461 	return (status);
5462 
5463 _init_exit:
5464 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "<== _init status = 0x%X", status));
5465 	MUTEX_DESTROY(&nxgedebuglock);
5466 	return (status);
5467 }
5468 
5469 int
5470 _fini(void)
5471 {
5472 	int		status;
5473 
5474 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
5475 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
5476 
5477 	if (nxge_mblks_pending)
5478 		return (EBUSY);
5479 
5480 	status = mod_remove(&modlinkage);
5481 	if (status != DDI_SUCCESS) {
5482 		NXGE_DEBUG_MSG((NULL, MOD_CTL,
5483 		    "Module removal failed 0x%08x",
5484 		    status));
5485 		goto _fini_exit;
5486 	}
5487 
5488 	mac_fini_ops(&nxge_dev_ops);
5489 
5490 	ddi_soft_state_fini(&nxge_list);
5491 
5492 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "<== _fini status = 0x%08x", status));
5493 
5494 	MUTEX_DESTROY(&nxge_common_lock);
5495 	MUTEX_DESTROY(&nxgedebuglock);
5496 	return (status);
5497 
5498 _fini_exit:
5499 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "<== _fini status = 0x%08x", status));
5500 	return (status);
5501 }
5502 
5503 int
5504 _info(struct modinfo *modinfop)
5505 {
5506 	int		status;
5507 
5508 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
5509 	status = mod_info(&modlinkage, modinfop);
5510 	NXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
5511 
5512 	return (status);
5513 }
5514 
5515 /*ARGSUSED*/
5516 static int
5517 nxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5518 {
5519 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5520 	p_nxge_t		nxgep = rhp->nxgep;
5521 	uint32_t		channel;
5522 	p_tx_ring_t		ring;
5523 
5524 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5525 	ring = nxgep->tx_rings->rings[channel];
5526 
5527 	MUTEX_ENTER(&ring->lock);
5528 	ASSERT(ring->tx_ring_handle == NULL);
5529 	ring->tx_ring_handle = rhp->ring_handle;
5530 	MUTEX_EXIT(&ring->lock);
5531 
5532 	return (0);
5533 }
5534 
5535 static void
5536 nxge_tx_ring_stop(mac_ring_driver_t rdriver)
5537 {
5538 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5539 	p_nxge_t		nxgep = rhp->nxgep;
5540 	uint32_t		channel;
5541 	p_tx_ring_t		ring;
5542 
5543 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5544 	ring = nxgep->tx_rings->rings[channel];
5545 
5546 	MUTEX_ENTER(&ring->lock);
5547 	ASSERT(ring->tx_ring_handle != NULL);
5548 	ring->tx_ring_handle = (mac_ring_handle_t)NULL;
5549 	MUTEX_EXIT(&ring->lock);
5550 }
5551 
5552 int
5553 nxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5554 {
5555 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5556 	p_nxge_t		nxgep = rhp->nxgep;
5557 	uint32_t		channel;
5558 	p_rx_rcr_ring_t		ring;
5559 	int			i;
5560 
5561 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5562 	ring =	nxgep->rx_rcr_rings->rcr_rings[channel];
5563 
5564 	MUTEX_ENTER(&ring->lock);
5565 
5566 	if (ring->started) {
5567 		ASSERT(ring->started == B_FALSE);
5568 		MUTEX_EXIT(&ring->lock);
5569 		return (0);
5570 	}
5571 
5572 	/* set rcr_ring */
5573 	for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5574 		if ((nxgep->ldgvp->ldvp[i].is_rxdma) &&
5575 		    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5576 			ring->ldvp = &nxgep->ldgvp->ldvp[i];
5577 			ring->ldgp = nxgep->ldgvp->ldvp[i].ldgp;
5578 		}
5579 	}
5580 
5581 	ring->rcr_mac_handle = rhp->ring_handle;
5582 	ring->rcr_gen_num = mr_gen_num;
5583 	ring->started = B_TRUE;
5584 	rhp->ring_gen_num = mr_gen_num;
5585 	MUTEX_EXIT(&ring->lock);
5586 
5587 	return (0);
5588 }
5589 
5590 static void
5591 nxge_rx_ring_stop(mac_ring_driver_t rdriver)
5592 {
5593 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5594 	p_nxge_t		nxgep = rhp->nxgep;
5595 	uint32_t		channel;
5596 	p_rx_rcr_ring_t		ring;
5597 
5598 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5599 	ring =	nxgep->rx_rcr_rings->rcr_rings[channel];
5600 
5601 	MUTEX_ENTER(&ring->lock);
5602 	ASSERT(ring->started == B_TRUE);
5603 	ring->rcr_mac_handle = NULL;
5604 	ring->ldvp = NULL;
5605 	ring->ldgp = NULL;
5606 	ring->started = B_FALSE;
5607 	MUTEX_EXIT(&ring->lock);
5608 }
5609 
5610 static int
5611 nxge_ring_get_htable_idx(p_nxge_t nxgep, mac_ring_type_t type, uint32_t channel)
5612 {
5613 	int	i;
5614 
5615 #if defined(sun4v)
5616 	if (isLDOMguest(nxgep)) {
5617 		return (nxge_hio_get_dc_htable_idx(nxgep,
5618 		    (type == MAC_RING_TYPE_TX) ? VP_BOUND_TX : VP_BOUND_RX,
5619 		    channel));
5620 	}
5621 #endif
5622 
5623 	ASSERT(nxgep->ldgvp != NULL);
5624 
5625 	switch (type) {
5626 	case MAC_RING_TYPE_TX:
5627 		for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5628 			if ((nxgep->ldgvp->ldvp[i].is_txdma) &&
5629 			    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5630 				return ((int)
5631 				    nxgep->ldgvp->ldvp[i].ldgp->htable_idx);
5632 			}
5633 		}
5634 		break;
5635 
5636 	case MAC_RING_TYPE_RX:
5637 		for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5638 			if ((nxgep->ldgvp->ldvp[i].is_rxdma) &&
5639 			    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5640 				return ((int)
5641 				    nxgep->ldgvp->ldvp[i].ldgp->htable_idx);
5642 			}
5643 		}
5644 	}
5645 
5646 	return (-1);
5647 }
5648 
5649 /*
5650  * Callback funtion for MAC layer to register all rings.
5651  */
5652 static void
5653 nxge_fill_ring(void *arg, mac_ring_type_t rtype, const int rg_index,
5654     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
5655 {
5656 	p_nxge_t		nxgep = (p_nxge_t)arg;
5657 	p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
5658 	p_nxge_intr_t		intrp;
5659 	uint32_t		channel;
5660 	int			htable_idx;
5661 	p_nxge_ring_handle_t	rhandlep;
5662 
5663 	ASSERT(nxgep != NULL);
5664 	ASSERT(p_cfgp != NULL);
5665 	ASSERT(infop != NULL);
5666 
5667 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
5668 	    "==> nxge_fill_ring 0x%x index %d", rtype, index));
5669 
5670 
5671 	switch (rtype) {
5672 	case MAC_RING_TYPE_TX: {
5673 		mac_intr_t	*mintr = &infop->mri_intr;
5674 
5675 		NXGE_DEBUG_MSG((nxgep, TX_CTL,
5676 		    "==> nxge_fill_ring (TX) 0x%x index %d ntdcs %d",
5677 		    rtype, index, p_cfgp->tdc.count));
5678 
5679 		ASSERT((index >= 0) && (index < p_cfgp->tdc.count));
5680 		rhandlep = &nxgep->tx_ring_handles[index];
5681 		rhandlep->nxgep = nxgep;
5682 		rhandlep->index = index;
5683 		rhandlep->ring_handle = rh;
5684 
5685 		channel = nxgep->pt_config.hw_config.tdc.start + index;
5686 		rhandlep->channel = channel;
5687 		intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5688 		htable_idx = nxge_ring_get_htable_idx(nxgep, rtype,
5689 		    channel);
5690 		if (htable_idx >= 0)
5691 			mintr->mi_ddi_handle = intrp->htable[htable_idx];
5692 		else
5693 			mintr->mi_ddi_handle = NULL;
5694 
5695 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5696 		infop->mri_start = nxge_tx_ring_start;
5697 		infop->mri_stop = nxge_tx_ring_stop;
5698 		infop->mri_tx = nxge_tx_ring_send;
5699 		infop->mri_stat = nxge_tx_ring_stat;
5700 		infop->mri_flags = MAC_RING_TX_SERIALIZE;
5701 		break;
5702 	}
5703 
5704 	case MAC_RING_TYPE_RX: {
5705 		mac_intr_t		nxge_mac_intr;
5706 		int			nxge_rindex;
5707 		p_nxge_intr_t		intrp;
5708 
5709 		intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5710 
5711 		NXGE_DEBUG_MSG((nxgep, RX_CTL,
5712 		    "==> nxge_fill_ring (RX) 0x%x index %d nrdcs %d",
5713 		    rtype, index, p_cfgp->max_rdcs));
5714 
5715 		/*
5716 		 * 'index' is the ring index within the group.
5717 		 * Find the ring index in the nxge instance.
5718 		 */
5719 		nxge_rindex = nxge_get_rxring_index(nxgep, rg_index, index);
5720 		channel = nxgep->pt_config.hw_config.start_rdc + index;
5721 		intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5722 
5723 		ASSERT((nxge_rindex >= 0) && (nxge_rindex < p_cfgp->max_rdcs));
5724 		rhandlep = &nxgep->rx_ring_handles[nxge_rindex];
5725 		rhandlep->nxgep = nxgep;
5726 		rhandlep->index = nxge_rindex;
5727 		rhandlep->ring_handle = rh;
5728 		rhandlep->channel = channel;
5729 
5730 		/*
5731 		 * Entrypoint to enable interrupt (disable poll) and
5732 		 * disable interrupt (enable poll).
5733 		 */
5734 		bzero(&nxge_mac_intr, sizeof (nxge_mac_intr));
5735 		nxge_mac_intr.mi_handle = (mac_intr_handle_t)rhandlep;
5736 		nxge_mac_intr.mi_enable = (mac_intr_enable_t)nxge_disable_poll;
5737 		nxge_mac_intr.mi_disable = (mac_intr_disable_t)nxge_enable_poll;
5738 
5739 		htable_idx =  nxge_ring_get_htable_idx(nxgep, rtype,
5740 		    channel);
5741 		if (htable_idx >= 0)
5742 			nxge_mac_intr.mi_ddi_handle = intrp->htable[htable_idx];
5743 		else
5744 			nxge_mac_intr.mi_ddi_handle = NULL;
5745 
5746 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5747 		infop->mri_start = nxge_rx_ring_start;
5748 		infop->mri_stop = nxge_rx_ring_stop;
5749 		infop->mri_intr = nxge_mac_intr;
5750 		infop->mri_poll = nxge_rx_poll;
5751 		infop->mri_stat = nxge_rx_ring_stat;
5752 		infop->mri_flags = MAC_RING_RX_ENQUEUE;
5753 		break;
5754 	}
5755 
5756 	default:
5757 		break;
5758 	}
5759 
5760 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_fill_ring 0x%x", rtype));
5761 }
5762 
5763 static void
5764 nxge_group_add_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5765     mac_ring_type_t type)
5766 {
5767 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5768 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5769 	nxge_t			*nxge;
5770 	nxge_grp_t		*grp;
5771 	nxge_rdc_grp_t		*rdc_grp;
5772 	uint16_t		channel;	/* device-wise ring id */
5773 	int			dev_gindex;
5774 	int			rv;
5775 
5776 	nxge = rgroup->nxgep;
5777 
5778 	switch (type) {
5779 	case MAC_RING_TYPE_TX:
5780 		/*
5781 		 * nxge_grp_dc_add takes a channel number which is a
5782 		 * "devise" ring ID.
5783 		 */
5784 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5785 
5786 		/*
5787 		 * Remove the ring from the default group
5788 		 */
5789 		if (rgroup->gindex != 0) {
5790 			(void) nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5791 		}
5792 
5793 		/*
5794 		 * nxge->tx_set.group[] is an array of groups indexed by
5795 		 * a "port" group ID.
5796 		 */
5797 		grp = nxge->tx_set.group[rgroup->gindex];
5798 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5799 		if (rv != 0) {
5800 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5801 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5802 		}
5803 		break;
5804 
5805 	case MAC_RING_TYPE_RX:
5806 		/*
5807 		 * nxge->rx_set.group[] is an array of groups indexed by
5808 		 * a "port" group ID.
5809 		 */
5810 		grp = nxge->rx_set.group[rgroup->gindex];
5811 
5812 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5813 		    rgroup->gindex;
5814 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5815 
5816 		/*
5817 		 * nxge_grp_dc_add takes a channel number which is a
5818 		 * "devise" ring ID.
5819 		 */
5820 		channel = nxge->pt_config.hw_config.start_rdc + rhandle->index;
5821 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_RX, channel);
5822 		if (rv != 0) {
5823 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5824 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5825 		}
5826 
5827 		rdc_grp->map |= (1 << channel);
5828 		rdc_grp->max_rdcs++;
5829 
5830 		(void) nxge_init_fzc_rdc_tbl(nxge, rdc_grp, rgroup->rdctbl);
5831 		break;
5832 	}
5833 }
5834 
5835 static void
5836 nxge_group_rem_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5837     mac_ring_type_t type)
5838 {
5839 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5840 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5841 	nxge_t			*nxge;
5842 	uint16_t		channel;	/* device-wise ring id */
5843 	nxge_rdc_grp_t		*rdc_grp;
5844 	int			dev_gindex;
5845 
5846 	nxge = rgroup->nxgep;
5847 
5848 	switch (type) {
5849 	case MAC_RING_TYPE_TX:
5850 		dev_gindex = nxge->pt_config.hw_config.def_mac_txdma_grpid +
5851 		    rgroup->gindex;
5852 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5853 		nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5854 
5855 		/*
5856 		 * Add the ring back to the default group
5857 		 */
5858 		if (rgroup->gindex != 0) {
5859 			nxge_grp_t *grp;
5860 			grp = nxge->tx_set.group[0];
5861 			(void) nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5862 		}
5863 		break;
5864 
5865 	case MAC_RING_TYPE_RX:
5866 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5867 		    rgroup->gindex;
5868 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5869 		channel = rdc_grp->start_rdc + rhandle->index;
5870 		nxge_grp_dc_remove(nxge, VP_BOUND_RX, channel);
5871 
5872 		rdc_grp->map &= ~(1 << channel);
5873 		rdc_grp->max_rdcs--;
5874 
5875 		(void) nxge_init_fzc_rdc_tbl(nxge, rdc_grp, rgroup->rdctbl);
5876 		break;
5877 	}
5878 }
5879 
5880 
5881 /*ARGSUSED*/
5882 static nxge_status_t
5883 nxge_add_intrs(p_nxge_t nxgep)
5884 {
5885 
5886 	int		intr_types;
5887 	int		type = 0;
5888 	int		ddi_status = DDI_SUCCESS;
5889 	nxge_status_t	status = NXGE_OK;
5890 
5891 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs"));
5892 
5893 	nxgep->nxge_intr_type.intr_registered = B_FALSE;
5894 	nxgep->nxge_intr_type.intr_enabled = B_FALSE;
5895 	nxgep->nxge_intr_type.msi_intx_cnt = 0;
5896 	nxgep->nxge_intr_type.intr_added = 0;
5897 	nxgep->nxge_intr_type.niu_msi_enable = B_FALSE;
5898 	nxgep->nxge_intr_type.intr_type = 0;
5899 
5900 	if (nxgep->niu_type == N2_NIU) {
5901 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5902 	} else if (nxge_msi_enable) {
5903 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5904 	}
5905 
5906 	/* Get the supported interrupt types */
5907 	if ((ddi_status = ddi_intr_get_supported_types(nxgep->dip, &intr_types))
5908 	    != DDI_SUCCESS) {
5909 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_intrs: "
5910 		    "ddi_intr_get_supported_types failed: status 0x%08x",
5911 		    ddi_status));
5912 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5913 	}
5914 	nxgep->nxge_intr_type.intr_types = intr_types;
5915 
5916 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5917 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5918 
5919 	/*
5920 	 * Solaris MSIX is not supported yet. use MSI for now.
5921 	 * nxge_msi_enable (1):
5922 	 *	1 - MSI		2 - MSI-X	others - FIXED
5923 	 */
5924 	switch (nxge_msi_enable) {
5925 	default:
5926 		type = DDI_INTR_TYPE_FIXED;
5927 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5928 		    "use fixed (intx emulation) type %08x",
5929 		    type));
5930 		break;
5931 
5932 	case 2:
5933 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5934 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5935 		if (intr_types & DDI_INTR_TYPE_MSIX) {
5936 			type = DDI_INTR_TYPE_MSIX;
5937 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5938 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5939 			    type));
5940 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
5941 			type = DDI_INTR_TYPE_MSI;
5942 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5943 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5944 			    type));
5945 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5946 			type = DDI_INTR_TYPE_FIXED;
5947 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5948 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5949 			    type));
5950 		}
5951 		break;
5952 
5953 	case 1:
5954 		if (intr_types & DDI_INTR_TYPE_MSI) {
5955 			type = DDI_INTR_TYPE_MSI;
5956 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5957 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5958 			    type));
5959 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
5960 			type = DDI_INTR_TYPE_MSIX;
5961 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5962 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5963 			    type));
5964 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5965 			type = DDI_INTR_TYPE_FIXED;
5966 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5967 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5968 			    type));
5969 		}
5970 	}
5971 
5972 	nxgep->nxge_intr_type.intr_type = type;
5973 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
5974 	    type == DDI_INTR_TYPE_FIXED) &&
5975 	    nxgep->nxge_intr_type.niu_msi_enable) {
5976 		if ((status = nxge_add_intrs_adv(nxgep)) != DDI_SUCCESS) {
5977 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5978 			    " nxge_add_intrs: "
5979 			    " nxge_add_intrs_adv failed: status 0x%08x",
5980 			    status));
5981 			return (status);
5982 		} else {
5983 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5984 			    "interrupts registered : type %d", type));
5985 			nxgep->nxge_intr_type.intr_registered = B_TRUE;
5986 
5987 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
5988 			    "\nAdded advanced nxge add_intr_adv "
5989 			    "intr type 0x%x\n", type));
5990 
5991 			return (status);
5992 		}
5993 	}
5994 
5995 	if (!nxgep->nxge_intr_type.intr_registered) {
5996 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_add_intrs: "
5997 		    "failed to register interrupts"));
5998 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5999 	}
6000 
6001 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_add_intrs"));
6002 	return (status);
6003 }
6004 
6005 static nxge_status_t
6006 nxge_add_intrs_adv(p_nxge_t nxgep)
6007 {
6008 	int		intr_type;
6009 	p_nxge_intr_t	intrp;
6010 
6011 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv"));
6012 
6013 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6014 	intr_type = intrp->intr_type;
6015 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv: type 0x%x",
6016 	    intr_type));
6017 
6018 	switch (intr_type) {
6019 	case DDI_INTR_TYPE_MSI: /* 0x2 */
6020 	case DDI_INTR_TYPE_MSIX: /* 0x4 */
6021 		return (nxge_add_intrs_adv_type(nxgep, intr_type));
6022 
6023 	case DDI_INTR_TYPE_FIXED: /* 0x1 */
6024 		return (nxge_add_intrs_adv_type_fix(nxgep, intr_type));
6025 
6026 	default:
6027 		return (NXGE_ERROR);
6028 	}
6029 }
6030 
6031 
6032 /*ARGSUSED*/
6033 static nxge_status_t
6034 nxge_add_intrs_adv_type(p_nxge_t nxgep, uint32_t int_type)
6035 {
6036 	dev_info_t		*dip = nxgep->dip;
6037 	p_nxge_ldg_t		ldgp;
6038 	p_nxge_intr_t		intrp;
6039 	ddi_intr_handler_t	*inthandler;
6040 	void			*arg1, *arg2;
6041 	int			behavior;
6042 	int			nintrs, navail, nrequest;
6043 	int			nactual, nrequired;
6044 	int			inum = 0;
6045 	int			x, y;
6046 	int			ddi_status = DDI_SUCCESS;
6047 	nxge_status_t		status = NXGE_OK;
6048 
6049 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type"));
6050 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6051 	intrp->start_inum = 0;
6052 
6053 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
6054 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
6055 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6056 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
6057 		    "nintrs: %d", ddi_status, nintrs));
6058 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6059 	}
6060 
6061 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
6062 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
6063 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6064 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
6065 		    "nintrs: %d", ddi_status, navail));
6066 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6067 	}
6068 
6069 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
6070 	    "ddi_intr_get_navail() returned: nintrs %d, navail %d",
6071 	    nintrs, navail));
6072 
6073 	/* PSARC/2007/453 MSI-X interrupt limit override */
6074 	if (int_type == DDI_INTR_TYPE_MSIX) {
6075 		nrequest = nxge_create_msi_property(nxgep);
6076 		if (nrequest < navail) {
6077 			navail = nrequest;
6078 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6079 			    "nxge_add_intrs_adv_type: nintrs %d "
6080 			    "navail %d (nrequest %d)",
6081 			    nintrs, navail, nrequest));
6082 		}
6083 	}
6084 
6085 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
6086 		/* MSI must be power of 2 */
6087 		if ((navail & 16) == 16) {
6088 			navail = 16;
6089 		} else if ((navail & 8) == 8) {
6090 			navail = 8;
6091 		} else if ((navail & 4) == 4) {
6092 			navail = 4;
6093 		} else if ((navail & 2) == 2) {
6094 			navail = 2;
6095 		} else {
6096 			navail = 1;
6097 		}
6098 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6099 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
6100 		    "navail %d", nintrs, navail));
6101 	}
6102 
6103 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
6104 	    DDI_INTR_ALLOC_NORMAL);
6105 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
6106 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
6107 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
6108 	    navail, &nactual, behavior);
6109 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6110 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6111 		    " ddi_intr_alloc() failed: %d",
6112 		    ddi_status));
6113 		kmem_free(intrp->htable, intrp->intr_size);
6114 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6115 	}
6116 
6117 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6118 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6119 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6120 		    " ddi_intr_get_pri() failed: %d",
6121 		    ddi_status));
6122 		/* Free already allocated interrupts */
6123 		for (y = 0; y < nactual; y++) {
6124 			(void) ddi_intr_free(intrp->htable[y]);
6125 		}
6126 
6127 		kmem_free(intrp->htable, intrp->intr_size);
6128 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6129 	}
6130 
6131 	nrequired = 0;
6132 	switch (nxgep->niu_type) {
6133 	default:
6134 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6135 		break;
6136 
6137 	case N2_NIU:
6138 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6139 		break;
6140 	}
6141 
6142 	if (status != NXGE_OK) {
6143 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6144 		    "nxge_add_intrs_adv_typ:nxge_ldgv_init "
6145 		    "failed: 0x%x", status));
6146 		/* Free already allocated interrupts */
6147 		for (y = 0; y < nactual; y++) {
6148 			(void) ddi_intr_free(intrp->htable[y]);
6149 		}
6150 
6151 		kmem_free(intrp->htable, intrp->intr_size);
6152 		return (status);
6153 	}
6154 
6155 	ldgp = nxgep->ldgvp->ldgp;
6156 	for (x = 0; x < nrequired; x++, ldgp++) {
6157 		ldgp->vector = (uint8_t)x;
6158 		ldgp->intdata = SID_DATA(ldgp->func, x);
6159 		arg1 = ldgp->ldvp;
6160 		arg2 = nxgep;
6161 		if (ldgp->nldvs == 1) {
6162 			inthandler = ldgp->ldvp->ldv_intr_handler;
6163 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6164 			    "nxge_add_intrs_adv_type: "
6165 			    "arg1 0x%x arg2 0x%x: "
6166 			    "1-1 int handler (entry %d intdata 0x%x)\n",
6167 			    arg1, arg2,
6168 			    x, ldgp->intdata));
6169 		} else if (ldgp->nldvs > 1) {
6170 			inthandler = ldgp->sys_intr_handler;
6171 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6172 			    "nxge_add_intrs_adv_type: "
6173 			    "arg1 0x%x arg2 0x%x: "
6174 			    "nldevs %d int handler "
6175 			    "(entry %d intdata 0x%x)\n",
6176 			    arg1, arg2,
6177 			    ldgp->nldvs, x, ldgp->intdata));
6178 		} else {
6179 			inthandler = NULL;
6180 		}
6181 
6182 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6183 		    "==> nxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
6184 		    "htable 0x%llx", x, intrp->htable[x]));
6185 
6186 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6187 		    inthandler, arg1, arg2)) != DDI_SUCCESS) {
6188 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6189 			    "==> nxge_add_intrs_adv_type: failed #%d "
6190 			    "status 0x%x", x, ddi_status));
6191 			for (y = 0; y < intrp->intr_added; y++) {
6192 				(void) ddi_intr_remove_handler(
6193 				    intrp->htable[y]);
6194 			}
6195 			/* Free already allocated intr */
6196 			for (y = 0; y < nactual; y++) {
6197 				(void) ddi_intr_free(intrp->htable[y]);
6198 			}
6199 			kmem_free(intrp->htable, intrp->intr_size);
6200 
6201 			(void) nxge_ldgv_uninit(nxgep);
6202 
6203 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6204 		}
6205 
6206 		ldgp->htable_idx = x;
6207 		intrp->intr_added++;
6208 	}
6209 
6210 	intrp->msi_intx_cnt = nactual;
6211 
6212 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6213 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
6214 	    navail, nactual,
6215 	    intrp->msi_intx_cnt,
6216 	    intrp->intr_added));
6217 
6218 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6219 
6220 	(void) nxge_intr_ldgv_init(nxgep);
6221 
6222 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type"));
6223 
6224 	return (status);
6225 }
6226 
6227 /*ARGSUSED*/
6228 static nxge_status_t
6229 nxge_add_intrs_adv_type_fix(p_nxge_t nxgep, uint32_t int_type)
6230 {
6231 	dev_info_t		*dip = nxgep->dip;
6232 	p_nxge_ldg_t		ldgp;
6233 	p_nxge_intr_t		intrp;
6234 	ddi_intr_handler_t	*inthandler;
6235 	void			*arg1, *arg2;
6236 	int			behavior;
6237 	int			nintrs, navail;
6238 	int			nactual, nrequired;
6239 	int			inum = 0;
6240 	int			x, y;
6241 	int			ddi_status = DDI_SUCCESS;
6242 	nxge_status_t		status = NXGE_OK;
6243 
6244 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type_fix"));
6245 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6246 	intrp->start_inum = 0;
6247 
6248 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
6249 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
6250 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6251 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
6252 		    "nintrs: %d", status, nintrs));
6253 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6254 	}
6255 
6256 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
6257 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
6258 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6259 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
6260 		    "nintrs: %d", ddi_status, navail));
6261 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6262 	}
6263 
6264 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
6265 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
6266 	    nintrs, navail));
6267 
6268 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
6269 	    DDI_INTR_ALLOC_NORMAL);
6270 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
6271 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
6272 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
6273 	    navail, &nactual, behavior);
6274 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6275 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6276 		    " ddi_intr_alloc() failed: %d",
6277 		    ddi_status));
6278 		kmem_free(intrp->htable, intrp->intr_size);
6279 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6280 	}
6281 
6282 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6283 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6284 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6285 		    " ddi_intr_get_pri() failed: %d",
6286 		    ddi_status));
6287 		/* Free already allocated interrupts */
6288 		for (y = 0; y < nactual; y++) {
6289 			(void) ddi_intr_free(intrp->htable[y]);
6290 		}
6291 
6292 		kmem_free(intrp->htable, intrp->intr_size);
6293 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6294 	}
6295 
6296 	nrequired = 0;
6297 	switch (nxgep->niu_type) {
6298 	default:
6299 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6300 		break;
6301 
6302 	case N2_NIU:
6303 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6304 		break;
6305 	}
6306 
6307 	if (status != NXGE_OK) {
6308 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6309 		    "nxge_add_intrs_adv_type_fix:nxge_ldgv_init "
6310 		    "failed: 0x%x", status));
6311 		/* Free already allocated interrupts */
6312 		for (y = 0; y < nactual; y++) {
6313 			(void) ddi_intr_free(intrp->htable[y]);
6314 		}
6315 
6316 		kmem_free(intrp->htable, intrp->intr_size);
6317 		return (status);
6318 	}
6319 
6320 	ldgp = nxgep->ldgvp->ldgp;
6321 	for (x = 0; x < nrequired; x++, ldgp++) {
6322 		ldgp->vector = (uint8_t)x;
6323 		if (nxgep->niu_type != N2_NIU) {
6324 			ldgp->intdata = SID_DATA(ldgp->func, x);
6325 		}
6326 
6327 		arg1 = ldgp->ldvp;
6328 		arg2 = nxgep;
6329 		if (ldgp->nldvs == 1) {
6330 			inthandler = ldgp->ldvp->ldv_intr_handler;
6331 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6332 			    "nxge_add_intrs_adv_type_fix: "
6333 			    "1-1 int handler(%d) ldg %d ldv %d "
6334 			    "arg1 $%p arg2 $%p\n",
6335 			    x, ldgp->ldg, ldgp->ldvp->ldv,
6336 			    arg1, arg2));
6337 		} else if (ldgp->nldvs > 1) {
6338 			inthandler = ldgp->sys_intr_handler;
6339 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6340 			    "nxge_add_intrs_adv_type_fix: "
6341 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
6342 			    "arg1 0x%016llx arg2 0x%016llx\n",
6343 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
6344 			    arg1, arg2));
6345 		} else {
6346 			inthandler = NULL;
6347 		}
6348 
6349 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6350 		    inthandler, arg1, arg2)) != DDI_SUCCESS) {
6351 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6352 			    "==> nxge_add_intrs_adv_type_fix: failed #%d "
6353 			    "status 0x%x", x, ddi_status));
6354 			for (y = 0; y < intrp->intr_added; y++) {
6355 				(void) ddi_intr_remove_handler(
6356 				    intrp->htable[y]);
6357 			}
6358 			for (y = 0; y < nactual; y++) {
6359 				(void) ddi_intr_free(intrp->htable[y]);
6360 			}
6361 			/* Free already allocated intr */
6362 			kmem_free(intrp->htable, intrp->intr_size);
6363 
6364 			(void) nxge_ldgv_uninit(nxgep);
6365 
6366 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6367 		}
6368 
6369 		ldgp->htable_idx = x;
6370 		intrp->intr_added++;
6371 	}
6372 
6373 	intrp->msi_intx_cnt = nactual;
6374 
6375 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6376 
6377 	status = nxge_intr_ldgv_init(nxgep);
6378 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type_fix"));
6379 
6380 	return (status);
6381 }
6382 
6383 static void
6384 nxge_remove_intrs(p_nxge_t nxgep)
6385 {
6386 	int		i, inum;
6387 	p_nxge_intr_t	intrp;
6388 
6389 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs"));
6390 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6391 	if (!intrp->intr_registered) {
6392 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6393 		    "<== nxge_remove_intrs: interrupts not registered"));
6394 		return;
6395 	}
6396 
6397 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs:advanced"));
6398 
6399 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6400 		(void) ddi_intr_block_disable(intrp->htable,
6401 		    intrp->intr_added);
6402 	} else {
6403 		for (i = 0; i < intrp->intr_added; i++) {
6404 			(void) ddi_intr_disable(intrp->htable[i]);
6405 		}
6406 	}
6407 
6408 	for (inum = 0; inum < intrp->intr_added; inum++) {
6409 		if (intrp->htable[inum]) {
6410 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
6411 		}
6412 	}
6413 
6414 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
6415 		if (intrp->htable[inum]) {
6416 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6417 			    "nxge_remove_intrs: ddi_intr_free inum %d "
6418 			    "msi_intx_cnt %d intr_added %d",
6419 			    inum,
6420 			    intrp->msi_intx_cnt,
6421 			    intrp->intr_added));
6422 
6423 			(void) ddi_intr_free(intrp->htable[inum]);
6424 		}
6425 	}
6426 
6427 	kmem_free(intrp->htable, intrp->intr_size);
6428 	intrp->intr_registered = B_FALSE;
6429 	intrp->intr_enabled = B_FALSE;
6430 	intrp->msi_intx_cnt = 0;
6431 	intrp->intr_added = 0;
6432 
6433 	(void) nxge_ldgv_uninit(nxgep);
6434 
6435 	(void) ddi_prop_remove(DDI_DEV_T_NONE, nxgep->dip,
6436 	    "#msix-request");
6437 
6438 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_intrs"));
6439 }
6440 
6441 /*ARGSUSED*/
6442 static void
6443 nxge_intrs_enable(p_nxge_t nxgep)
6444 {
6445 	p_nxge_intr_t	intrp;
6446 	int		i;
6447 	int		status;
6448 
6449 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable"));
6450 
6451 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6452 
6453 	if (!intrp->intr_registered) {
6454 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_intrs_enable: "
6455 		    "interrupts are not registered"));
6456 		return;
6457 	}
6458 
6459 	if (intrp->intr_enabled) {
6460 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6461 		    "<== nxge_intrs_enable: already enabled"));
6462 		return;
6463 	}
6464 
6465 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6466 		status = ddi_intr_block_enable(intrp->htable,
6467 		    intrp->intr_added);
6468 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6469 		    "block enable - status 0x%x total inums #%d\n",
6470 		    status, intrp->intr_added));
6471 	} else {
6472 		for (i = 0; i < intrp->intr_added; i++) {
6473 			status = ddi_intr_enable(intrp->htable[i]);
6474 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6475 			    "ddi_intr_enable:enable - status 0x%x "
6476 			    "total inums %d enable inum #%d\n",
6477 			    status, intrp->intr_added, i));
6478 			if (status == DDI_SUCCESS) {
6479 				intrp->intr_enabled = B_TRUE;
6480 			}
6481 		}
6482 	}
6483 
6484 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_enable"));
6485 }
6486 
6487 /*ARGSUSED*/
6488 static void
6489 nxge_intrs_disable(p_nxge_t nxgep)
6490 {
6491 	p_nxge_intr_t	intrp;
6492 	int		i;
6493 
6494 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_disable"));
6495 
6496 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6497 
6498 	if (!intrp->intr_registered) {
6499 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable: "
6500 		    "interrupts are not registered"));
6501 		return;
6502 	}
6503 
6504 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6505 		(void) ddi_intr_block_disable(intrp->htable,
6506 		    intrp->intr_added);
6507 	} else {
6508 		for (i = 0; i < intrp->intr_added; i++) {
6509 			(void) ddi_intr_disable(intrp->htable[i]);
6510 		}
6511 	}
6512 
6513 	intrp->intr_enabled = B_FALSE;
6514 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable"));
6515 }
6516 
6517 nxge_status_t
6518 nxge_mac_register(p_nxge_t nxgep)
6519 {
6520 	mac_register_t *macp;
6521 	int		status;
6522 
6523 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_mac_register"));
6524 
6525 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
6526 		return (NXGE_ERROR);
6527 
6528 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
6529 	macp->m_driver = nxgep;
6530 	macp->m_dip = nxgep->dip;
6531 	if (!isLDOMguest(nxgep)) {
6532 		macp->m_src_addr = nxgep->ouraddr.ether_addr_octet;
6533 	} else {
6534 		macp->m_src_addr = KMEM_ZALLOC(MAXMACADDRLEN, KM_SLEEP);
6535 		macp->m_dst_addr = KMEM_ZALLOC(MAXMACADDRLEN, KM_SLEEP);
6536 		(void) memset(macp->m_src_addr, 0xff, MAXMACADDRLEN);
6537 	}
6538 	macp->m_callbacks = &nxge_m_callbacks;
6539 	macp->m_min_sdu = 0;
6540 	nxgep->mac.default_mtu = nxgep->mac.maxframesize -
6541 	    NXGE_EHEADER_VLAN_CRC;
6542 	macp->m_max_sdu = nxgep->mac.default_mtu;
6543 	macp->m_margin = VLAN_TAGSZ;
6544 	macp->m_priv_props = nxge_priv_props;
6545 	if (isLDOMguest(nxgep))
6546 		macp->m_v12n = MAC_VIRT_LEVEL1;
6547 	else
6548 		macp->m_v12n = MAC_VIRT_HIO | MAC_VIRT_LEVEL1;
6549 
6550 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
6551 	    "==> nxge_mac_register: instance %d "
6552 	    "max_sdu %d margin %d maxframe %d (header %d)",
6553 	    nxgep->instance,
6554 	    macp->m_max_sdu, macp->m_margin,
6555 	    nxgep->mac.maxframesize,
6556 	    NXGE_EHEADER_VLAN_CRC));
6557 
6558 	status = mac_register(macp, &nxgep->mach);
6559 	if (isLDOMguest(nxgep)) {
6560 		KMEM_FREE(macp->m_src_addr, MAXMACADDRLEN);
6561 		KMEM_FREE(macp->m_dst_addr, MAXMACADDRLEN);
6562 	}
6563 	mac_free(macp);
6564 
6565 	if (status != 0) {
6566 		cmn_err(CE_WARN,
6567 		    "!nxge_mac_register failed (status %d instance %d)",
6568 		    status, nxgep->instance);
6569 		return (NXGE_ERROR);
6570 	}
6571 
6572 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_mac_register success "
6573 	    "(instance %d)", nxgep->instance));
6574 
6575 	return (NXGE_OK);
6576 }
6577 
6578 void
6579 nxge_err_inject(p_nxge_t nxgep, queue_t *wq, mblk_t *mp)
6580 {
6581 	ssize_t		size;
6582 	mblk_t		*nmp;
6583 	uint8_t		blk_id;
6584 	uint8_t		chan;
6585 	uint32_t	err_id;
6586 	err_inject_t	*eip;
6587 
6588 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_err_inject"));
6589 
6590 	size = 1024;
6591 	nmp = mp->b_cont;
6592 	eip = (err_inject_t *)nmp->b_rptr;
6593 	blk_id = eip->blk_id;
6594 	err_id = eip->err_id;
6595 	chan = eip->chan;
6596 	cmn_err(CE_NOTE, "!blk_id = 0x%x\n", blk_id);
6597 	cmn_err(CE_NOTE, "!err_id = 0x%x\n", err_id);
6598 	cmn_err(CE_NOTE, "!chan = 0x%x\n", chan);
6599 	switch (blk_id) {
6600 	case MAC_BLK_ID:
6601 		break;
6602 	case TXMAC_BLK_ID:
6603 		break;
6604 	case RXMAC_BLK_ID:
6605 		break;
6606 	case MIF_BLK_ID:
6607 		break;
6608 	case IPP_BLK_ID:
6609 		nxge_ipp_inject_err(nxgep, err_id);
6610 		break;
6611 	case TXC_BLK_ID:
6612 		nxge_txc_inject_err(nxgep, err_id);
6613 		break;
6614 	case TXDMA_BLK_ID:
6615 		nxge_txdma_inject_err(nxgep, err_id, chan);
6616 		break;
6617 	case RXDMA_BLK_ID:
6618 		nxge_rxdma_inject_err(nxgep, err_id, chan);
6619 		break;
6620 	case ZCP_BLK_ID:
6621 		nxge_zcp_inject_err(nxgep, err_id);
6622 		break;
6623 	case ESPC_BLK_ID:
6624 		break;
6625 	case FFLP_BLK_ID:
6626 		break;
6627 	case PHY_BLK_ID:
6628 		break;
6629 	case ETHER_SERDES_BLK_ID:
6630 		break;
6631 	case PCIE_SERDES_BLK_ID:
6632 		break;
6633 	case VIR_BLK_ID:
6634 		break;
6635 	}
6636 
6637 	nmp->b_wptr = nmp->b_rptr + size;
6638 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "<== nxge_err_inject"));
6639 
6640 	miocack(wq, mp, (int)size, 0);
6641 }
6642 
6643 static int
6644 nxge_init_common_dev(p_nxge_t nxgep)
6645 {
6646 	p_nxge_hw_list_t	hw_p;
6647 	dev_info_t		*p_dip;
6648 
6649 	ASSERT(nxgep != NULL);
6650 
6651 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_init_common_device"));
6652 
6653 	p_dip = nxgep->p_dip;
6654 	MUTEX_ENTER(&nxge_common_lock);
6655 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6656 	    "==> nxge_init_common_dev:func # %d",
6657 	    nxgep->function_num));
6658 	/*
6659 	 * Loop through existing per neptune hardware list.
6660 	 */
6661 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6662 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6663 		    "==> nxge_init_common_device:func # %d "
6664 		    "hw_p $%p parent dip $%p",
6665 		    nxgep->function_num,
6666 		    hw_p,
6667 		    p_dip));
6668 		if (hw_p->parent_devp == p_dip) {
6669 			nxgep->nxge_hw_p = hw_p;
6670 			hw_p->ndevs++;
6671 			hw_p->nxge_p[nxgep->function_num] = nxgep;
6672 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6673 			    "==> nxge_init_common_device:func # %d "
6674 			    "hw_p $%p parent dip $%p "
6675 			    "ndevs %d (found)",
6676 			    nxgep->function_num,
6677 			    hw_p,
6678 			    p_dip,
6679 			    hw_p->ndevs));
6680 			break;
6681 		}
6682 	}
6683 
6684 	if (hw_p == NULL) {
6685 
6686 		char **prop_val;
6687 		uint_t prop_len;
6688 		int i;
6689 
6690 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6691 		    "==> nxge_init_common_device:func # %d "
6692 		    "parent dip $%p (new)",
6693 		    nxgep->function_num,
6694 		    p_dip));
6695 		hw_p = kmem_zalloc(sizeof (nxge_hw_list_t), KM_SLEEP);
6696 		hw_p->parent_devp = p_dip;
6697 		hw_p->magic = NXGE_NEPTUNE_MAGIC;
6698 		nxgep->nxge_hw_p = hw_p;
6699 		hw_p->ndevs++;
6700 		hw_p->nxge_p[nxgep->function_num] = nxgep;
6701 		hw_p->next = nxge_hw_list;
6702 		if (nxgep->niu_type == N2_NIU) {
6703 			hw_p->niu_type = N2_NIU;
6704 			hw_p->platform_type = P_NEPTUNE_NIU;
6705 			hw_p->tcam_size = TCAM_NIU_TCAM_MAX_ENTRY;
6706 		} else {
6707 			hw_p->niu_type = NIU_TYPE_NONE;
6708 			hw_p->platform_type = P_NEPTUNE_NONE;
6709 			hw_p->tcam_size = TCAM_NXGE_TCAM_MAX_ENTRY;
6710 		}
6711 
6712 		hw_p->tcam = KMEM_ZALLOC(sizeof (tcam_flow_spec_t) *
6713 		    hw_p->tcam_size, KM_SLEEP);
6714 
6715 		MUTEX_INIT(&hw_p->nxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
6716 		MUTEX_INIT(&hw_p->nxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
6717 		MUTEX_INIT(&hw_p->nxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
6718 		MUTEX_INIT(&hw_p->nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
6719 
6720 		nxge_hw_list = hw_p;
6721 
6722 		if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, nxgep->dip, 0,
6723 		    "compatible", &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
6724 			for (i = 0; i < prop_len; i++) {
6725 				if ((strcmp((caddr_t)prop_val[i],
6726 				    NXGE_ROCK_COMPATIBLE) == 0)) {
6727 					hw_p->platform_type = P_NEPTUNE_ROCK;
6728 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6729 					    "ROCK hw_p->platform_type %d",
6730 					    hw_p->platform_type));
6731 					break;
6732 				}
6733 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6734 				    "nxge_init_common_dev: read compatible"
6735 				    " property[%d] val[%s]",
6736 				    i, (caddr_t)prop_val[i]));
6737 			}
6738 		}
6739 
6740 		ddi_prop_free(prop_val);
6741 
6742 		(void) nxge_scan_ports_phy(nxgep, nxge_hw_list);
6743 	}
6744 
6745 	MUTEX_EXIT(&nxge_common_lock);
6746 
6747 	nxgep->platform_type = hw_p->platform_type;
6748 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "nxgep->platform_type %d",
6749 	    nxgep->platform_type));
6750 	if (nxgep->niu_type != N2_NIU) {
6751 		nxgep->niu_type = hw_p->niu_type;
6752 	}
6753 
6754 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6755 	    "==> nxge_init_common_device (nxge_hw_list) $%p",
6756 	    nxge_hw_list));
6757 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<== nxge_init_common_device"));
6758 
6759 	return (NXGE_OK);
6760 }
6761 
6762 static void
6763 nxge_uninit_common_dev(p_nxge_t nxgep)
6764 {
6765 	p_nxge_hw_list_t	hw_p, h_hw_p;
6766 	p_nxge_dma_pt_cfg_t	p_dma_cfgp;
6767 	p_nxge_hw_pt_cfg_t	p_cfgp;
6768 	dev_info_t		*p_dip;
6769 
6770 	ASSERT(nxgep != NULL);
6771 
6772 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_uninit_common_device"));
6773 	if (nxgep->nxge_hw_p == NULL) {
6774 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6775 		    "<== nxge_uninit_common_device (no common)"));
6776 		return;
6777 	}
6778 
6779 	MUTEX_ENTER(&nxge_common_lock);
6780 	h_hw_p = nxge_hw_list;
6781 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6782 		p_dip = hw_p->parent_devp;
6783 		if (nxgep->nxge_hw_p == hw_p &&
6784 		    p_dip == nxgep->p_dip &&
6785 		    nxgep->nxge_hw_p->magic == NXGE_NEPTUNE_MAGIC &&
6786 		    hw_p->magic == NXGE_NEPTUNE_MAGIC) {
6787 
6788 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6789 			    "==> nxge_uninit_common_device:func # %d "
6790 			    "hw_p $%p parent dip $%p "
6791 			    "ndevs %d (found)",
6792 			    nxgep->function_num,
6793 			    hw_p,
6794 			    p_dip,
6795 			    hw_p->ndevs));
6796 
6797 			/*
6798 			 * Release the RDC table, a shared resoruce
6799 			 * of the nxge hardware.  The RDC table was
6800 			 * assigned to this instance of nxge in
6801 			 * nxge_use_cfg_dma_config().
6802 			 */
6803 			if (!isLDOMguest(nxgep)) {
6804 				p_dma_cfgp =
6805 				    (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
6806 				p_cfgp =
6807 				    (p_nxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
6808 				(void) nxge_fzc_rdc_tbl_unbind(nxgep,
6809 				    p_cfgp->def_mac_rxdma_grpid);
6810 
6811 				/* Cleanup any outstanding groups.  */
6812 				nxge_grp_cleanup(nxgep);
6813 			}
6814 
6815 			if (hw_p->ndevs) {
6816 				hw_p->ndevs--;
6817 			}
6818 			hw_p->nxge_p[nxgep->function_num] = NULL;
6819 			if (!hw_p->ndevs) {
6820 				KMEM_FREE(hw_p->tcam,
6821 				    sizeof (tcam_flow_spec_t) *
6822 				    hw_p->tcam_size);
6823 				MUTEX_DESTROY(&hw_p->nxge_vlan_lock);
6824 				MUTEX_DESTROY(&hw_p->nxge_tcam_lock);
6825 				MUTEX_DESTROY(&hw_p->nxge_cfg_lock);
6826 				MUTEX_DESTROY(&hw_p->nxge_mdio_lock);
6827 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6828 				    "==> nxge_uninit_common_device: "
6829 				    "func # %d "
6830 				    "hw_p $%p parent dip $%p "
6831 				    "ndevs %d (last)",
6832 				    nxgep->function_num,
6833 				    hw_p,
6834 				    p_dip,
6835 				    hw_p->ndevs));
6836 
6837 				nxge_hio_uninit(nxgep);
6838 
6839 				if (hw_p == nxge_hw_list) {
6840 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6841 					    "==> nxge_uninit_common_device:"
6842 					    "remove head func # %d "
6843 					    "hw_p $%p parent dip $%p "
6844 					    "ndevs %d (head)",
6845 					    nxgep->function_num,
6846 					    hw_p,
6847 					    p_dip,
6848 					    hw_p->ndevs));
6849 					nxge_hw_list = hw_p->next;
6850 				} else {
6851 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6852 					    "==> nxge_uninit_common_device:"
6853 					    "remove middle func # %d "
6854 					    "hw_p $%p parent dip $%p "
6855 					    "ndevs %d (middle)",
6856 					    nxgep->function_num,
6857 					    hw_p,
6858 					    p_dip,
6859 					    hw_p->ndevs));
6860 					h_hw_p->next = hw_p->next;
6861 				}
6862 
6863 				nxgep->nxge_hw_p = NULL;
6864 				KMEM_FREE(hw_p, sizeof (nxge_hw_list_t));
6865 			}
6866 			break;
6867 		} else {
6868 			h_hw_p = hw_p;
6869 		}
6870 	}
6871 
6872 	MUTEX_EXIT(&nxge_common_lock);
6873 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6874 	    "==> nxge_uninit_common_device (nxge_hw_list) $%p",
6875 	    nxge_hw_list));
6876 
6877 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<= nxge_uninit_common_device"));
6878 }
6879 
6880 /*
6881  * Determines the number of ports from the niu_type or the platform type.
6882  * Returns the number of ports, or returns zero on failure.
6883  */
6884 
6885 int
6886 nxge_get_nports(p_nxge_t nxgep)
6887 {
6888 	int	nports = 0;
6889 
6890 	switch (nxgep->niu_type) {
6891 	case N2_NIU:
6892 	case NEPTUNE_2_10GF:
6893 		nports = 2;
6894 		break;
6895 	case NEPTUNE_4_1GC:
6896 	case NEPTUNE_2_10GF_2_1GC:
6897 	case NEPTUNE_1_10GF_3_1GC:
6898 	case NEPTUNE_1_1GC_1_10GF_2_1GC:
6899 	case NEPTUNE_2_10GF_2_1GRF:
6900 		nports = 4;
6901 		break;
6902 	default:
6903 		switch (nxgep->platform_type) {
6904 		case P_NEPTUNE_NIU:
6905 		case P_NEPTUNE_ATLAS_2PORT:
6906 			nports = 2;
6907 			break;
6908 		case P_NEPTUNE_ATLAS_4PORT:
6909 		case P_NEPTUNE_MARAMBA_P0:
6910 		case P_NEPTUNE_MARAMBA_P1:
6911 		case P_NEPTUNE_ROCK:
6912 		case P_NEPTUNE_ALONSO:
6913 			nports = 4;
6914 			break;
6915 		default:
6916 			break;
6917 		}
6918 		break;
6919 	}
6920 
6921 	return (nports);
6922 }
6923 
6924 /*
6925  * The following two functions are to support
6926  * PSARC/2007/453 MSI-X interrupt limit override.
6927  */
6928 static int
6929 nxge_create_msi_property(p_nxge_t nxgep)
6930 {
6931 	int	nmsi;
6932 	extern	int ncpus;
6933 
6934 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==>nxge_create_msi_property"));
6935 
6936 	switch (nxgep->mac.portmode) {
6937 	case PORT_10G_COPPER:
6938 	case PORT_10G_FIBER:
6939 	case PORT_10G_TN1010:
6940 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6941 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6942 		/*
6943 		 * The maximum MSI-X requested will be 8.
6944 		 * If the # of CPUs is less than 8, we will request
6945 		 * # MSI-X based on the # of CPUs (default).
6946 		 */
6947 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6948 		    "==>nxge_create_msi_property (10G): nxge_msix_10g_intrs %d",
6949 		    nxge_msix_10g_intrs));
6950 		if ((nxge_msix_10g_intrs == 0) ||
6951 		    (nxge_msix_10g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6952 			nmsi = NXGE_MSIX_REQUEST_10G;
6953 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6954 			    "==>nxge_create_msi_property (10G): reset to 8"));
6955 		} else {
6956 			nmsi = nxge_msix_10g_intrs;
6957 		}
6958 
6959 		/*
6960 		 * If # of interrupts requested is 8 (default),
6961 		 * the checking of the number of cpus will be
6962 		 * be maintained.
6963 		 */
6964 		if ((nmsi == NXGE_MSIX_REQUEST_10G) &&
6965 		    (ncpus < nmsi)) {
6966 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6967 			    "==>nxge_create_msi_property (10G): reset to 8"));
6968 			nmsi = ncpus;
6969 		}
6970 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6971 		    "==>nxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
6972 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6973 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6974 		break;
6975 
6976 	default:
6977 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6978 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6979 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6980 		    "==>nxge_create_msi_property (1G): nxge_msix_1g_intrs %d",
6981 		    nxge_msix_1g_intrs));
6982 		if ((nxge_msix_1g_intrs == 0) ||
6983 		    (nxge_msix_1g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6984 			nmsi = NXGE_MSIX_REQUEST_1G;
6985 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6986 			    "==>nxge_create_msi_property (1G): reset to 2"));
6987 		} else {
6988 			nmsi = nxge_msix_1g_intrs;
6989 		}
6990 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6991 		    "==>nxge_create_msi_property(1G): exists 0x%x (nmsi %d)",
6992 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6993 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6994 		break;
6995 	}
6996 
6997 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<==nxge_create_msi_property"));
6998 	return (nmsi);
6999 }
7000 
7001 /*
7002  * The following is a software around for the Neptune hardware's
7003  * interrupt bugs; The Neptune hardware may generate spurious interrupts when
7004  * an interrupr handler is removed.
7005  */
7006 #define	NXGE_PCI_PORT_LOGIC_OFFSET	0x98
7007 #define	NXGE_PIM_RESET			(1ULL << 29)
7008 #define	NXGE_GLU_RESET			(1ULL << 30)
7009 #define	NXGE_NIU_RESET			(1ULL << 31)
7010 #define	NXGE_PCI_RESET_ALL		(NXGE_PIM_RESET |	\
7011 					NXGE_GLU_RESET |	\
7012 					NXGE_NIU_RESET)
7013 
7014 #define	NXGE_WAIT_QUITE_TIME		200000
7015 #define	NXGE_WAIT_QUITE_RETRY		40
7016 #define	NXGE_PCI_RESET_WAIT		1000000 /* one second */
7017 
7018 static void
7019 nxge_niu_peu_reset(p_nxge_t nxgep)
7020 {
7021 	uint32_t	rvalue;
7022 	p_nxge_hw_list_t hw_p;
7023 	p_nxge_t	fnxgep;
7024 	int		i, j;
7025 
7026 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_niu_peu_reset"));
7027 	if ((hw_p = nxgep->nxge_hw_p) == NULL) {
7028 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
7029 		    "==> nxge_niu_peu_reset: NULL hardware pointer"));
7030 		return;
7031 	}
7032 
7033 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7034 	    "==> nxge_niu_peu_reset: flags 0x%x link timer id %d timer id %d",
7035 	    hw_p->flags, nxgep->nxge_link_poll_timerid,
7036 	    nxgep->nxge_timerid));
7037 
7038 	MUTEX_ENTER(&hw_p->nxge_cfg_lock);
7039 	/*
7040 	 * Make sure other instances from the same hardware
7041 	 * stop sending PIO and in quiescent state.
7042 	 */
7043 	for (i = 0; i < NXGE_MAX_PORTS; i++) {
7044 		fnxgep = hw_p->nxge_p[i];
7045 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7046 		    "==> nxge_niu_peu_reset: checking entry %d "
7047 		    "nxgep $%p", i, fnxgep));
7048 #ifdef	NXGE_DEBUG
7049 		if (fnxgep) {
7050 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7051 			    "==> nxge_niu_peu_reset: entry %d (function %d) "
7052 			    "link timer id %d hw timer id %d",
7053 			    i, fnxgep->function_num,
7054 			    fnxgep->nxge_link_poll_timerid,
7055 			    fnxgep->nxge_timerid));
7056 		}
7057 #endif
7058 		if (fnxgep && fnxgep != nxgep &&
7059 		    (fnxgep->nxge_timerid || fnxgep->nxge_link_poll_timerid)) {
7060 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7061 			    "==> nxge_niu_peu_reset: checking $%p "
7062 			    "(function %d) timer ids",
7063 			    fnxgep, fnxgep->function_num));
7064 			for (j = 0; j < NXGE_WAIT_QUITE_RETRY; j++) {
7065 				NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7066 				    "==> nxge_niu_peu_reset: waiting"));
7067 				NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
7068 				if (!fnxgep->nxge_timerid &&
7069 				    !fnxgep->nxge_link_poll_timerid) {
7070 					break;
7071 				}
7072 			}
7073 			NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
7074 			if (fnxgep->nxge_timerid ||
7075 			    fnxgep->nxge_link_poll_timerid) {
7076 				MUTEX_EXIT(&hw_p->nxge_cfg_lock);
7077 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
7078 				    "<== nxge_niu_peu_reset: cannot reset "
7079 				    "hardware (devices are still in use)"));
7080 				return;
7081 			}
7082 		}
7083 	}
7084 
7085 	if ((hw_p->flags & COMMON_RESET_NIU_PCI) != COMMON_RESET_NIU_PCI) {
7086 		hw_p->flags |= COMMON_RESET_NIU_PCI;
7087 		rvalue = pci_config_get32(nxgep->dev_regs->nxge_pciregh,
7088 		    NXGE_PCI_PORT_LOGIC_OFFSET);
7089 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7090 		    "nxge_niu_peu_reset: read offset 0x%x (%d) "
7091 		    "(data 0x%x)",
7092 		    NXGE_PCI_PORT_LOGIC_OFFSET,
7093 		    NXGE_PCI_PORT_LOGIC_OFFSET,
7094 		    rvalue));
7095 
7096 		rvalue |= NXGE_PCI_RESET_ALL;
7097 		pci_config_put32(nxgep->dev_regs->nxge_pciregh,
7098 		    NXGE_PCI_PORT_LOGIC_OFFSET, rvalue);
7099 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7100 		    "nxge_niu_peu_reset: RESETTING NIU: write NIU reset 0x%x",
7101 		    rvalue));
7102 
7103 		NXGE_DELAY(NXGE_PCI_RESET_WAIT);
7104 	}
7105 
7106 	MUTEX_EXIT(&hw_p->nxge_cfg_lock);
7107 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_niu_peu_reset"));
7108 }
7109 
7110 static void
7111 nxge_set_pci_replay_timeout(p_nxge_t nxgep)
7112 {
7113 	p_dev_regs_t	dev_regs;
7114 	uint32_t	value;
7115 
7116 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_set_pci_replay_timeout"));
7117 
7118 	if (!nxge_set_replay_timer) {
7119 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7120 		    "==> nxge_set_pci_replay_timeout: will not change "
7121 		    "the timeout"));
7122 		return;
7123 	}
7124 
7125 	dev_regs = nxgep->dev_regs;
7126 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7127 	    "==> nxge_set_pci_replay_timeout: dev_regs 0x%p pcireg 0x%p",
7128 	    dev_regs, dev_regs->nxge_pciregh));
7129 
7130 	if (dev_regs == NULL || (dev_regs->nxge_pciregh == NULL)) {
7131 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7132 		    "==> nxge_set_pci_replay_timeout: NULL dev_regs $%p or "
7133 		    "no PCI handle",
7134 		    dev_regs));
7135 		return;
7136 	}
7137 	value = (pci_config_get32(dev_regs->nxge_pciregh,
7138 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET) |
7139 	    (nxge_replay_timeout << PCI_REPLAY_TIMEOUT_SHIFT));
7140 
7141 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7142 	    "nxge_set_pci_replay_timeout: replay timeout value before set 0x%x "
7143 	    "(timeout value to set 0x%x at offset 0x%x) value 0x%x",
7144 	    pci_config_get32(dev_regs->nxge_pciregh,
7145 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET), nxge_replay_timeout,
7146 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET, value));
7147 
7148 	pci_config_put32(dev_regs->nxge_pciregh, PCI_REPLAY_TIMEOUT_CFG_OFFSET,
7149 	    value);
7150 
7151 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7152 	    "nxge_set_pci_replay_timeout: replay timeout value after set 0x%x",
7153 	    pci_config_get32(dev_regs->nxge_pciregh,
7154 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET)));
7155 
7156 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_set_pci_replay_timeout"));
7157 }
7158 
7159 /*
7160  * quiesce(9E) entry point.
7161  *
7162  * This function is called when the system is single-threaded at high
7163  * PIL with preemption disabled. Therefore, this function must not be
7164  * blocked.
7165  *
7166  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
7167  * DDI_FAILURE indicates an error condition and should almost never happen.
7168  */
7169 static int
7170 nxge_quiesce(dev_info_t *dip)
7171 {
7172 	int instance = ddi_get_instance(dip);
7173 	p_nxge_t nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
7174 
7175 	if (nxgep == NULL)
7176 		return (DDI_FAILURE);
7177 
7178 	/* Turn off debugging */
7179 	nxge_debug_level = NO_DEBUG;
7180 	nxgep->nxge_debug_level = NO_DEBUG;
7181 	npi_debug_level = NO_DEBUG;
7182 
7183 	/*
7184 	 * Stop link monitor only when linkchkmod is interrupt based
7185 	 */
7186 	if (nxgep->mac.linkchkmode == LINKCHK_INTR) {
7187 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
7188 	}
7189 
7190 	(void) nxge_intr_hw_disable(nxgep);
7191 
7192 	/*
7193 	 * Reset the receive MAC side.
7194 	 */
7195 	(void) nxge_rx_mac_disable(nxgep);
7196 
7197 	/* Disable and soft reset the IPP */
7198 	if (!isLDOMguest(nxgep))
7199 		(void) nxge_ipp_disable(nxgep);
7200 
7201 	/*
7202 	 * Reset the transmit/receive DMA side.
7203 	 */
7204 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
7205 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
7206 
7207 	/*
7208 	 * Reset the transmit MAC side.
7209 	 */
7210 	(void) nxge_tx_mac_disable(nxgep);
7211 
7212 	return (DDI_SUCCESS);
7213 }
7214