xref: /illumos-gate/usr/src/uts/common/io/nxge/nxge_main.c (revision b2b3ca14272ffe2a6fc37bab2ab65b8f6702d750)
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 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*
28  * SunOs MT STREAMS NIU/Neptune 10Gb Ethernet Device Driver.
29  */
30 #include	<sys/nxge/nxge_impl.h>
31 #include	<sys/nxge/nxge_hio.h>
32 #include	<sys/nxge/nxge_rxdma.h>
33 #include	<sys/pcie.h>
34 
35 uint32_t 	nxge_use_partition = 0;		/* debug partition flag */
36 uint32_t 	nxge_dma_obp_props_only = 1;	/* use obp published props */
37 uint32_t 	nxge_use_rdc_intr = 1;		/* debug to assign rdc intr */
38 /*
39  * PSARC/2007/453 MSI-X interrupt limit override
40  */
41 uint32_t	nxge_msi_enable = 2;
42 
43 /*
44  * Software workaround for a Neptune (PCI-E)
45  * hardware interrupt bug which the hardware
46  * may generate spurious interrupts after the
47  * device interrupt handler was removed. If this flag
48  * is enabled, the driver will reset the
49  * hardware when devices are being detached.
50  */
51 uint32_t	nxge_peu_reset_enable = 0;
52 
53 /*
54  * Software workaround for the hardware
55  * checksum bugs that affect packet transmission
56  * and receive:
57  *
58  * Usage of nxge_cksum_offload:
59  *
60  *  (1) nxge_cksum_offload = 0 (default):
61  *	- transmits packets:
62  *	  TCP: uses the hardware checksum feature.
63  *	  UDP: driver will compute the software checksum
64  *	       based on the partial checksum computed
65  *	       by the IP layer.
66  *	- receives packets
67  *	  TCP: marks packets checksum flags based on hardware result.
68  *	  UDP: will not mark checksum flags.
69  *
70  *  (2) nxge_cksum_offload = 1:
71  *	- transmit packets:
72  *	  TCP/UDP: uses the hardware checksum feature.
73  *	- receives packets
74  *	  TCP/UDP: marks packet checksum flags based on hardware result.
75  *
76  *  (3) nxge_cksum_offload = 2:
77  *	- The driver will not register its checksum capability.
78  *	  Checksum for both TCP and UDP will be computed
79  *	  by the stack.
80  *	- The software LSO is not allowed in this case.
81  *
82  *  (4) nxge_cksum_offload > 2:
83  *	- Will be treated as it is set to 2
84  *	  (stack will compute the checksum).
85  *
86  *  (5) If the hardware bug is fixed, this workaround
87  *	needs to be updated accordingly to reflect
88  *	the new hardware revision.
89  */
90 uint32_t	nxge_cksum_offload = 0;
91 
92 /*
93  * Globals: tunable parameters (/etc/system or adb)
94  *
95  */
96 uint32_t 	nxge_rbr_size = NXGE_RBR_RBB_DEFAULT;
97 uint32_t 	nxge_rbr_spare_size = 0;
98 uint32_t 	nxge_rcr_size = NXGE_RCR_DEFAULT;
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 /* Use kmem_alloc() to allocate data buffers. */
131 #if defined(_BIG_ENDIAN)
132 uint32_t	nxge_use_kmem_alloc = 1;
133 #else
134 uint32_t	nxge_use_kmem_alloc = 0;
135 #endif
136 
137 rtrace_t npi_rtracebuf;
138 
139 /*
140  * The hardware sometimes fails to allow enough time for the link partner
141  * to send an acknowledgement for packets that the hardware sent to it. The
142  * hardware resends the packets earlier than it should be in those instances.
143  * This behavior caused some switches to acknowledge the wrong packets
144  * and it triggered the fatal error.
145  * This software workaround is to set the replay timer to a value
146  * suggested by the hardware team.
147  *
148  * PCI config space replay timer register:
149  *     The following replay timeout value is 0xc
150  *     for bit 14:18.
151  */
152 #define	PCI_REPLAY_TIMEOUT_CFG_OFFSET	0xb8
153 #define	PCI_REPLAY_TIMEOUT_SHIFT	14
154 
155 uint32_t	nxge_set_replay_timer = 1;
156 uint32_t	nxge_replay_timeout = 0xc;
157 
158 /*
159  * The transmit serialization sometimes causes
160  * longer sleep before calling the driver transmit
161  * function as it sleeps longer than it should.
162  * The performace group suggests that a time wait tunable
163  * can be used to set the maximum wait time when needed
164  * and the default is set to 1 tick.
165  */
166 uint32_t	nxge_tx_serial_maxsleep = 1;
167 
168 #if	defined(sun4v)
169 /*
170  * Hypervisor N2/NIU services information.
171  */
172 static hsvc_info_t niu_hsvc = {
173 	HSVC_REV_1, NULL, HSVC_GROUP_NIU, NIU_MAJOR_VER,
174 	NIU_MINOR_VER, "nxge"
175 };
176 
177 static int nxge_hsvc_register(p_nxge_t);
178 #endif
179 
180 /*
181  * Function Prototypes
182  */
183 static int nxge_attach(dev_info_t *, ddi_attach_cmd_t);
184 static int nxge_detach(dev_info_t *, ddi_detach_cmd_t);
185 static void nxge_unattach(p_nxge_t);
186 static int nxge_quiesce(dev_info_t *);
187 
188 #if NXGE_PROPERTY
189 static void nxge_remove_hard_properties(p_nxge_t);
190 #endif
191 
192 /*
193  * These two functions are required by nxge_hio.c
194  */
195 extern int nxge_m_mmac_remove(void *arg, int slot);
196 extern void nxge_grp_cleanup(p_nxge_t nxge);
197 
198 static nxge_status_t nxge_setup_system_dma_pages(p_nxge_t);
199 
200 static nxge_status_t nxge_setup_mutexes(p_nxge_t);
201 static void nxge_destroy_mutexes(p_nxge_t);
202 
203 static nxge_status_t nxge_map_regs(p_nxge_t nxgep);
204 static void nxge_unmap_regs(p_nxge_t nxgep);
205 #ifdef	NXGE_DEBUG
206 static void nxge_test_map_regs(p_nxge_t nxgep);
207 #endif
208 
209 static nxge_status_t nxge_add_intrs(p_nxge_t nxgep);
210 static void nxge_remove_intrs(p_nxge_t nxgep);
211 
212 static nxge_status_t nxge_add_intrs_adv(p_nxge_t nxgep);
213 static nxge_status_t nxge_add_intrs_adv_type(p_nxge_t, uint32_t);
214 static nxge_status_t nxge_add_intrs_adv_type_fix(p_nxge_t, uint32_t);
215 static void nxge_intrs_enable(p_nxge_t nxgep);
216 static void nxge_intrs_disable(p_nxge_t nxgep);
217 
218 static void nxge_suspend(p_nxge_t);
219 static nxge_status_t nxge_resume(p_nxge_t);
220 
221 static nxge_status_t nxge_setup_dev(p_nxge_t);
222 static void nxge_destroy_dev(p_nxge_t);
223 
224 static nxge_status_t nxge_alloc_mem_pool(p_nxge_t);
225 static void nxge_free_mem_pool(p_nxge_t);
226 
227 nxge_status_t nxge_alloc_rx_mem_pool(p_nxge_t);
228 static void nxge_free_rx_mem_pool(p_nxge_t);
229 
230 nxge_status_t nxge_alloc_tx_mem_pool(p_nxge_t);
231 static void nxge_free_tx_mem_pool(p_nxge_t);
232 
233 static nxge_status_t nxge_dma_mem_alloc(p_nxge_t, dma_method_t,
234 	struct ddi_dma_attr *,
235 	size_t, ddi_device_acc_attr_t *, uint_t,
236 	p_nxge_dma_common_t);
237 
238 static void nxge_dma_mem_free(p_nxge_dma_common_t);
239 static void nxge_dma_free_rx_data_buf(p_nxge_dma_common_t);
240 
241 static nxge_status_t nxge_alloc_rx_buf_dma(p_nxge_t, uint16_t,
242 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
243 static void nxge_free_rx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
244 
245 static nxge_status_t nxge_alloc_rx_cntl_dma(p_nxge_t, uint16_t,
246 	p_nxge_dma_common_t *, size_t);
247 static void nxge_free_rx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
248 
249 extern nxge_status_t nxge_alloc_tx_buf_dma(p_nxge_t, uint16_t,
250 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
251 static void nxge_free_tx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
252 
253 extern nxge_status_t nxge_alloc_tx_cntl_dma(p_nxge_t, uint16_t,
254 	p_nxge_dma_common_t *,
255 	size_t);
256 static void nxge_free_tx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
257 
258 static int nxge_init_common_dev(p_nxge_t);
259 static void nxge_uninit_common_dev(p_nxge_t);
260 extern int nxge_param_set_mac(p_nxge_t, queue_t *, mblk_t *,
261     char *, caddr_t);
262 #if defined(sun4v)
263 extern nxge_status_t nxge_hio_rdc_enable(p_nxge_t nxgep);
264 extern nxge_status_t nxge_hio_rdc_intr_arm(p_nxge_t nxge, boolean_t arm);
265 #endif
266 
267 /*
268  * The next declarations are for the GLDv3 interface.
269  */
270 static int nxge_m_start(void *);
271 static void nxge_m_stop(void *);
272 static int nxge_m_multicst(void *, boolean_t, const uint8_t *);
273 static int nxge_m_promisc(void *, boolean_t);
274 static void nxge_m_ioctl(void *, queue_t *, mblk_t *);
275 static nxge_status_t nxge_mac_register(p_nxge_t);
276 static int nxge_altmac_set(p_nxge_t nxgep, uint8_t *mac_addr,
277 	int slot, int rdctbl, boolean_t usetbl);
278 void nxge_mmac_kstat_update(p_nxge_t nxgep, int slot,
279 	boolean_t factory);
280 #if defined(sun4v)
281 extern mblk_t *nxge_m_tx(void *arg, mblk_t *mp);
282 #endif
283 
284 static void nxge_m_getfactaddr(void *, uint_t, uint8_t *);
285 static	boolean_t nxge_m_getcapab(void *, mac_capab_t, void *);
286 static int nxge_m_setprop(void *, const char *, mac_prop_id_t,
287     uint_t, const void *);
288 static int nxge_m_getprop(void *, const char *, mac_prop_id_t,
289     uint_t, uint_t, void *, uint_t *);
290 static int nxge_set_priv_prop(nxge_t *, const char *, uint_t,
291     const void *);
292 static int nxge_get_priv_prop(nxge_t *, const char *, uint_t, uint_t,
293     void *, uint_t *);
294 static int nxge_get_def_val(nxge_t *, mac_prop_id_t, uint_t, void *);
295 static void nxge_fill_ring(void *, mac_ring_type_t, const int, const int,
296     mac_ring_info_t *, mac_ring_handle_t);
297 static void nxge_group_add_ring(mac_group_driver_t, mac_ring_driver_t,
298     mac_ring_type_t);
299 static void nxge_group_rem_ring(mac_group_driver_t, mac_ring_driver_t,
300     mac_ring_type_t);
301 
302 static void nxge_niu_peu_reset(p_nxge_t nxgep);
303 static void nxge_set_pci_replay_timeout(nxge_t *);
304 
305 mac_priv_prop_t nxge_priv_props[] = {
306 	{"_adv_10gfdx_cap", MAC_PROP_PERM_RW},
307 	{"_adv_pause_cap", MAC_PROP_PERM_RW},
308 	{"_function_number", MAC_PROP_PERM_READ},
309 	{"_fw_version", MAC_PROP_PERM_READ},
310 	{"_port_mode", MAC_PROP_PERM_READ},
311 	{"_hot_swap_phy", MAC_PROP_PERM_READ},
312 	{"_rxdma_intr_time", MAC_PROP_PERM_RW},
313 	{"_rxdma_intr_pkts", MAC_PROP_PERM_RW},
314 	{"_class_opt_ipv4_tcp", MAC_PROP_PERM_RW},
315 	{"_class_opt_ipv4_udp", MAC_PROP_PERM_RW},
316 	{"_class_opt_ipv4_ah", MAC_PROP_PERM_RW},
317 	{"_class_opt_ipv4_sctp", MAC_PROP_PERM_RW},
318 	{"_class_opt_ipv6_tcp", MAC_PROP_PERM_RW},
319 	{"_class_opt_ipv6_udp", MAC_PROP_PERM_RW},
320 	{"_class_opt_ipv6_ah", MAC_PROP_PERM_RW},
321 	{"_class_opt_ipv6_sctp", MAC_PROP_PERM_RW},
322 	{"_soft_lso_enable", MAC_PROP_PERM_RW}
323 };
324 
325 #define	NXGE_MAX_PRIV_PROPS	\
326 	(sizeof (nxge_priv_props)/sizeof (mac_priv_prop_t))
327 
328 #define	NXGE_NEPTUNE_MAGIC	0x4E584745UL
329 #define	MAX_DUMP_SZ 256
330 
331 #define	NXGE_M_CALLBACK_FLAGS	\
332 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP)
333 
334 mac_callbacks_t nxge_m_callbacks = {
335 	NXGE_M_CALLBACK_FLAGS,
336 	nxge_m_stat,
337 	nxge_m_start,
338 	nxge_m_stop,
339 	nxge_m_promisc,
340 	nxge_m_multicst,
341 	NULL,
342 	NULL,
343 	nxge_m_ioctl,
344 	nxge_m_getcapab,
345 	NULL,
346 	NULL,
347 	nxge_m_setprop,
348 	nxge_m_getprop
349 };
350 
351 void
352 nxge_err_inject(p_nxge_t, queue_t *, mblk_t *);
353 
354 /* PSARC/2007/453 MSI-X interrupt limit override. */
355 #define	NXGE_MSIX_REQUEST_10G	8
356 #define	NXGE_MSIX_REQUEST_1G	2
357 static int nxge_create_msi_property(p_nxge_t);
358 /*
359  * For applications that care about the
360  * latency, it was requested by PAE and the
361  * customers that the driver has tunables that
362  * allow the user to tune it to a higher number
363  * interrupts to spread the interrupts among
364  * multiple channels. The DDI framework limits
365  * the maximum number of MSI-X resources to allocate
366  * to 8 (ddi_msix_alloc_limit). If more than 8
367  * is set, ddi_msix_alloc_limit must be set accordingly.
368  * The default number of MSI interrupts are set to
369  * 8 for 10G and 2 for 1G link.
370  */
371 #define	NXGE_MSIX_MAX_ALLOWED	32
372 uint32_t nxge_msix_10g_intrs = NXGE_MSIX_REQUEST_10G;
373 uint32_t nxge_msix_1g_intrs = NXGE_MSIX_REQUEST_1G;
374 
375 /*
376  * These global variables control the message
377  * output.
378  */
379 out_dbgmsg_t nxge_dbgmsg_out = DBG_CONSOLE | STR_LOG;
380 uint64_t nxge_debug_level;
381 
382 /*
383  * This list contains the instance structures for the Neptune
384  * devices present in the system. The lock exists to guarantee
385  * mutually exclusive access to the list.
386  */
387 void 			*nxge_list = NULL;
388 
389 void			*nxge_hw_list = NULL;
390 nxge_os_mutex_t 	nxge_common_lock;
391 
392 extern uint64_t 	npi_debug_level;
393 
394 extern nxge_status_t	nxge_ldgv_init(p_nxge_t, int *, int *);
395 extern nxge_status_t	nxge_ldgv_init_n2(p_nxge_t, int *, int *);
396 extern nxge_status_t	nxge_ldgv_uninit(p_nxge_t);
397 extern nxge_status_t	nxge_intr_ldgv_init(p_nxge_t);
398 extern void		nxge_fm_init(p_nxge_t,
399 					ddi_device_acc_attr_t *,
400 					ddi_device_acc_attr_t *,
401 					ddi_dma_attr_t *);
402 extern void		nxge_fm_fini(p_nxge_t);
403 extern npi_status_t	npi_mac_altaddr_disable(npi_handle_t, uint8_t, uint8_t);
404 
405 /*
406  * Count used to maintain the number of buffers being used
407  * by Neptune instances and loaned up to the upper layers.
408  */
409 uint32_t nxge_mblks_pending = 0;
410 
411 /*
412  * Device register access attributes for PIO.
413  */
414 static ddi_device_acc_attr_t nxge_dev_reg_acc_attr = {
415 	DDI_DEVICE_ATTR_V0,
416 	DDI_STRUCTURE_LE_ACC,
417 	DDI_STRICTORDER_ACC,
418 };
419 
420 /*
421  * Device descriptor access attributes for DMA.
422  */
423 static ddi_device_acc_attr_t nxge_dev_desc_dma_acc_attr = {
424 	DDI_DEVICE_ATTR_V0,
425 	DDI_STRUCTURE_LE_ACC,
426 	DDI_STRICTORDER_ACC
427 };
428 
429 /*
430  * Device buffer access attributes for DMA.
431  */
432 static ddi_device_acc_attr_t nxge_dev_buf_dma_acc_attr = {
433 	DDI_DEVICE_ATTR_V0,
434 	DDI_STRUCTURE_BE_ACC,
435 	DDI_STRICTORDER_ACC
436 };
437 
438 ddi_dma_attr_t nxge_desc_dma_attr = {
439 	DMA_ATTR_V0,		/* version number. */
440 	0,			/* low address */
441 	0xffffffffffffffff,	/* high address */
442 	0xffffffffffffffff,	/* address counter max */
443 #ifndef NIU_PA_WORKAROUND
444 	0x100000,		/* alignment */
445 #else
446 	0x2000,
447 #endif
448 	0xfc00fc,		/* dlim_burstsizes */
449 	0x1,			/* minimum transfer size */
450 	0xffffffffffffffff,	/* maximum transfer size */
451 	0xffffffffffffffff,	/* maximum segment size */
452 	1,			/* scatter/gather list length */
453 	(unsigned int) 1,	/* granularity */
454 	0			/* attribute flags */
455 };
456 
457 ddi_dma_attr_t nxge_tx_dma_attr = {
458 	DMA_ATTR_V0,		/* version number. */
459 	0,			/* low address */
460 	0xffffffffffffffff,	/* high address */
461 	0xffffffffffffffff,	/* address counter max */
462 #if defined(_BIG_ENDIAN)
463 	0x2000,			/* alignment */
464 #else
465 	0x1000,			/* alignment */
466 #endif
467 	0xfc00fc,		/* dlim_burstsizes */
468 	0x1,			/* minimum transfer size */
469 	0xffffffffffffffff,	/* maximum transfer size */
470 	0xffffffffffffffff,	/* maximum segment size */
471 	5,			/* scatter/gather list length */
472 	(unsigned int) 1,	/* granularity */
473 	0			/* attribute flags */
474 };
475 
476 ddi_dma_attr_t nxge_rx_dma_attr = {
477 	DMA_ATTR_V0,		/* version number. */
478 	0,			/* low address */
479 	0xffffffffffffffff,	/* high address */
480 	0xffffffffffffffff,	/* address counter max */
481 	0x2000,			/* alignment */
482 	0xfc00fc,		/* dlim_burstsizes */
483 	0x1,			/* minimum transfer size */
484 	0xffffffffffffffff,	/* maximum transfer size */
485 	0xffffffffffffffff,	/* maximum segment size */
486 	1,			/* scatter/gather list length */
487 	(unsigned int) 1,	/* granularity */
488 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
489 };
490 
491 ddi_dma_lim_t nxge_dma_limits = {
492 	(uint_t)0,		/* dlim_addr_lo */
493 	(uint_t)0xffffffff,	/* dlim_addr_hi */
494 	(uint_t)0xffffffff,	/* dlim_cntr_max */
495 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
496 	0x1,			/* dlim_minxfer */
497 	1024			/* dlim_speed */
498 };
499 
500 dma_method_t nxge_force_dma = DVMA;
501 
502 /*
503  * dma chunk sizes.
504  *
505  * Try to allocate the largest possible size
506  * so that fewer number of dma chunks would be managed
507  */
508 #ifdef NIU_PA_WORKAROUND
509 size_t alloc_sizes [] = {0x2000};
510 #else
511 size_t alloc_sizes [] = {0x1000, 0x2000, 0x4000, 0x8000,
512 		0x10000, 0x20000, 0x40000, 0x80000,
513 		0x100000, 0x200000, 0x400000, 0x800000,
514 		0x1000000, 0x2000000, 0x4000000};
515 #endif
516 
517 /*
518  * Translate "dev_t" to a pointer to the associated "dev_info_t".
519  */
520 
521 extern void nxge_get_environs(nxge_t *);
522 
523 static int
524 nxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
525 {
526 	p_nxge_t	nxgep = NULL;
527 	int		instance;
528 	int		status = DDI_SUCCESS;
529 	uint8_t		portn;
530 	nxge_mmac_t	*mmac_info;
531 
532 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_attach"));
533 
534 	/*
535 	 * Get the device instance since we'll need to setup
536 	 * or retrieve a soft state for this instance.
537 	 */
538 	instance = ddi_get_instance(dip);
539 
540 	switch (cmd) {
541 	case DDI_ATTACH:
542 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_ATTACH"));
543 		break;
544 
545 	case DDI_RESUME:
546 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_RESUME"));
547 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
548 		if (nxgep == NULL) {
549 			status = DDI_FAILURE;
550 			break;
551 		}
552 		if (nxgep->dip != dip) {
553 			status = DDI_FAILURE;
554 			break;
555 		}
556 		if (nxgep->suspended == DDI_PM_SUSPEND) {
557 			status = ddi_dev_is_needed(nxgep->dip, 0, 1);
558 		} else {
559 			status = nxge_resume(nxgep);
560 		}
561 		goto nxge_attach_exit;
562 
563 	case DDI_PM_RESUME:
564 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_RESUME"));
565 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
566 		if (nxgep == NULL) {
567 			status = DDI_FAILURE;
568 			break;
569 		}
570 		if (nxgep->dip != dip) {
571 			status = DDI_FAILURE;
572 			break;
573 		}
574 		status = nxge_resume(nxgep);
575 		goto nxge_attach_exit;
576 
577 	default:
578 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing unknown"));
579 		status = DDI_FAILURE;
580 		goto nxge_attach_exit;
581 	}
582 
583 
584 	if (ddi_soft_state_zalloc(nxge_list, instance) == DDI_FAILURE) {
585 		status = DDI_FAILURE;
586 		goto nxge_attach_exit;
587 	}
588 
589 	nxgep = ddi_get_soft_state(nxge_list, instance);
590 	if (nxgep == NULL) {
591 		status = NXGE_ERROR;
592 		goto nxge_attach_fail2;
593 	}
594 
595 	nxgep->nxge_magic = NXGE_MAGIC;
596 
597 	nxgep->drv_state = 0;
598 	nxgep->dip = dip;
599 	nxgep->instance = instance;
600 	nxgep->p_dip = ddi_get_parent(dip);
601 	nxgep->nxge_debug_level = nxge_debug_level;
602 	npi_debug_level = nxge_debug_level;
603 
604 	/* Are we a guest running in a Hybrid I/O environment? */
605 	nxge_get_environs(nxgep);
606 
607 	status = nxge_map_regs(nxgep);
608 
609 	if (status != NXGE_OK) {
610 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_map_regs failed"));
611 		goto nxge_attach_fail3;
612 	}
613 
614 	nxge_fm_init(nxgep, &nxge_dev_reg_acc_attr,
615 	    &nxge_dev_desc_dma_acc_attr,
616 	    &nxge_rx_dma_attr);
617 
618 	/* Create & initialize the per-Neptune data structure */
619 	/* (even if we're a guest). */
620 	status = nxge_init_common_dev(nxgep);
621 	if (status != NXGE_OK) {
622 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
623 		    "nxge_init_common_dev failed"));
624 		goto nxge_attach_fail4;
625 	}
626 
627 	/*
628 	 * Software workaround: set the replay timer.
629 	 */
630 	if (nxgep->niu_type != N2_NIU) {
631 		nxge_set_pci_replay_timeout(nxgep);
632 	}
633 #if defined(sun4v)
634 	if (isLDOMguest(nxgep)) {
635 		nxge_m_callbacks.mc_tx = nxge_m_tx;
636 	}
637 #endif
638 
639 #if defined(sun4v)
640 	/* This is required by nxge_hio_init(), which follows. */
641 	if ((status = nxge_hsvc_register(nxgep)) != DDI_SUCCESS)
642 		goto nxge_attach_fail4;
643 #endif
644 
645 	if ((status = nxge_hio_init(nxgep)) != NXGE_OK) {
646 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
647 		    "nxge_hio_init failed"));
648 		goto nxge_attach_fail4;
649 	}
650 
651 	if (nxgep->niu_type == NEPTUNE_2_10GF) {
652 		if (nxgep->function_num > 1) {
653 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Unsupported"
654 			    " function %d. Only functions 0 and 1 are "
655 			    "supported for this card.", nxgep->function_num));
656 			status = NXGE_ERROR;
657 			goto nxge_attach_fail4;
658 		}
659 	}
660 
661 	if (isLDOMguest(nxgep)) {
662 		/*
663 		 * Use the function number here.
664 		 */
665 		nxgep->mac.portnum = nxgep->function_num;
666 		nxgep->mac.porttype = PORT_TYPE_LOGICAL;
667 
668 		/* XXX We'll set the MAC address counts to 1 for now. */
669 		mmac_info = &nxgep->nxge_mmac_info;
670 		mmac_info->num_mmac = 1;
671 		mmac_info->naddrfree = 1;
672 	} else {
673 		portn = NXGE_GET_PORT_NUM(nxgep->function_num);
674 		nxgep->mac.portnum = portn;
675 		if ((portn == 0) || (portn == 1))
676 			nxgep->mac.porttype = PORT_TYPE_XMAC;
677 		else
678 			nxgep->mac.porttype = PORT_TYPE_BMAC;
679 		/*
680 		 * Neptune has 4 ports, the first 2 ports use XMAC (10G MAC)
681 		 * internally, the rest 2 ports use BMAC (1G "Big" MAC).
682 		 * The two types of MACs have different characterizations.
683 		 */
684 		mmac_info = &nxgep->nxge_mmac_info;
685 		if (nxgep->function_num < 2) {
686 			mmac_info->num_mmac = XMAC_MAX_ALT_ADDR_ENTRY;
687 			mmac_info->naddrfree = XMAC_MAX_ALT_ADDR_ENTRY;
688 		} else {
689 			mmac_info->num_mmac = BMAC_MAX_ALT_ADDR_ENTRY;
690 			mmac_info->naddrfree = BMAC_MAX_ALT_ADDR_ENTRY;
691 		}
692 	}
693 	/*
694 	 * Setup the Ndd parameters for the this instance.
695 	 */
696 	nxge_init_param(nxgep);
697 
698 	/*
699 	 * Setup Register Tracing Buffer.
700 	 */
701 	npi_rtrace_buf_init((rtrace_t *)&npi_rtracebuf);
702 
703 	/* init stats ptr */
704 	nxge_init_statsp(nxgep);
705 
706 	/*
707 	 * Copy the vpd info from eeprom to a local data
708 	 * structure, and then check its validity.
709 	 */
710 	if (!isLDOMguest(nxgep)) {
711 		int *regp;
712 		uint_t reglen;
713 		int rv;
714 
715 		nxge_vpd_info_get(nxgep);
716 
717 		/* Find the NIU config handle. */
718 		rv = ddi_prop_lookup_int_array(DDI_DEV_T_ANY,
719 		    ddi_get_parent(nxgep->dip), DDI_PROP_DONTPASS,
720 		    "reg", &regp, &reglen);
721 
722 		if (rv != DDI_PROP_SUCCESS) {
723 			goto nxge_attach_fail5;
724 		}
725 		/*
726 		 * The address_hi, that is the first int, in the reg
727 		 * property consists of config handle, but need to remove
728 		 * the bits 28-31 which are OBP specific info.
729 		 */
730 		nxgep->niu_cfg_hdl = (*regp) & 0xFFFFFFF;
731 		ddi_prop_free(regp);
732 	}
733 
734 	/*
735 	 * Set the defaults for the MTU size.
736 	 */
737 	nxge_hw_id_init(nxgep);
738 
739 	if (isLDOMguest(nxgep)) {
740 		uchar_t *prop_val;
741 		uint_t prop_len;
742 		uint32_t max_frame_size;
743 
744 		extern void nxge_get_logical_props(p_nxge_t);
745 
746 		nxgep->statsp->mac_stats.xcvr_inuse = LOGICAL_XCVR;
747 		nxgep->mac.portmode = PORT_LOGICAL;
748 		(void) ddi_prop_update_string(DDI_DEV_T_NONE, nxgep->dip,
749 		    "phy-type", "virtual transceiver");
750 
751 		nxgep->nports = 1;
752 		nxgep->board_ver = 0;	/* XXX What? */
753 
754 		/*
755 		 * local-mac-address property gives us info on which
756 		 * specific MAC address the Hybrid resource is associated
757 		 * with.
758 		 */
759 		if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, nxgep->dip, 0,
760 		    "local-mac-address", &prop_val,
761 		    &prop_len) != DDI_PROP_SUCCESS) {
762 			goto nxge_attach_fail5;
763 		}
764 		if (prop_len !=  ETHERADDRL) {
765 			ddi_prop_free(prop_val);
766 			goto nxge_attach_fail5;
767 		}
768 		ether_copy(prop_val, nxgep->hio_mac_addr);
769 		ddi_prop_free(prop_val);
770 		nxge_get_logical_props(nxgep);
771 
772 		/*
773 		 * Enable Jumbo property based on the "max-frame-size"
774 		 * property value.
775 		 */
776 		max_frame_size = ddi_prop_get_int(DDI_DEV_T_ANY,
777 		    nxgep->dip, DDI_PROP_DONTPASS | DDI_PROP_NOTPROM,
778 		    "max-frame-size", NXGE_MTU_DEFAULT_MAX);
779 		if ((max_frame_size > NXGE_MTU_DEFAULT_MAX) &&
780 		    (max_frame_size <= TX_JUMBO_MTU)) {
781 			nxgep->mac.is_jumbo = B_TRUE;
782 			nxgep->mac.maxframesize = (uint16_t)max_frame_size;
783 			nxgep->mac.default_mtu = nxgep->mac.maxframesize -
784 			    NXGE_EHEADER_VLAN_CRC;
785 		}
786 	} else {
787 		status = nxge_xcvr_find(nxgep);
788 
789 		if (status != NXGE_OK) {
790 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_attach: "
791 			    " Couldn't determine card type"
792 			    " .... exit "));
793 			goto nxge_attach_fail5;
794 		}
795 
796 		status = nxge_get_config_properties(nxgep);
797 
798 		if (status != NXGE_OK) {
799 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
800 			    "get_hw create failed"));
801 			goto nxge_attach_fail;
802 		}
803 	}
804 
805 	/*
806 	 * Setup the Kstats for the driver.
807 	 */
808 	nxge_setup_kstats(nxgep);
809 
810 	if (!isLDOMguest(nxgep))
811 		nxge_setup_param(nxgep);
812 
813 	status = nxge_setup_system_dma_pages(nxgep);
814 	if (status != NXGE_OK) {
815 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "set dma page failed"));
816 		goto nxge_attach_fail;
817 	}
818 
819 
820 	if (!isLDOMguest(nxgep))
821 		nxge_hw_init_niu_common(nxgep);
822 
823 	status = nxge_setup_mutexes(nxgep);
824 	if (status != NXGE_OK) {
825 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set mutex failed"));
826 		goto nxge_attach_fail;
827 	}
828 
829 #if defined(sun4v)
830 	if (isLDOMguest(nxgep)) {
831 		/* Find our VR & channel sets. */
832 		status = nxge_hio_vr_add(nxgep);
833 		if (status != NXGE_OK) {
834 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
835 			    "nxge_hio_vr_add failed"));
836 			(void) hsvc_unregister(&nxgep->niu_hsvc);
837 			nxgep->niu_hsvc_available = B_FALSE;
838 		}
839 		goto nxge_attach_exit;
840 	}
841 #endif
842 
843 	status = nxge_setup_dev(nxgep);
844 	if (status != DDI_SUCCESS) {
845 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set dev failed"));
846 		goto nxge_attach_fail;
847 	}
848 
849 	status = nxge_add_intrs(nxgep);
850 	if (status != DDI_SUCCESS) {
851 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "add_intr failed"));
852 		goto nxge_attach_fail;
853 	}
854 
855 	/* If a guest, register with vio_net instead. */
856 	if ((status = nxge_mac_register(nxgep)) != NXGE_OK) {
857 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
858 		    "unable to register to mac layer (%d)", status));
859 		goto nxge_attach_fail;
860 	}
861 
862 	mac_link_update(nxgep->mach, LINK_STATE_UNKNOWN);
863 
864 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
865 	    "registered to mac (instance %d)", instance));
866 
867 	/* nxge_link_monitor calls xcvr.check_link recursively */
868 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
869 
870 	goto nxge_attach_exit;
871 
872 nxge_attach_fail:
873 	nxge_unattach(nxgep);
874 	goto nxge_attach_fail1;
875 
876 nxge_attach_fail5:
877 	/*
878 	 * Tear down the ndd parameters setup.
879 	 */
880 	nxge_destroy_param(nxgep);
881 
882 	/*
883 	 * Tear down the kstat setup.
884 	 */
885 	nxge_destroy_kstats(nxgep);
886 
887 nxge_attach_fail4:
888 	if (nxgep->nxge_hw_p) {
889 		nxge_uninit_common_dev(nxgep);
890 		nxgep->nxge_hw_p = NULL;
891 	}
892 
893 nxge_attach_fail3:
894 	/*
895 	 * Unmap the register setup.
896 	 */
897 	nxge_unmap_regs(nxgep);
898 
899 	nxge_fm_fini(nxgep);
900 
901 nxge_attach_fail2:
902 	ddi_soft_state_free(nxge_list, nxgep->instance);
903 
904 nxge_attach_fail1:
905 	if (status != NXGE_OK)
906 		status = (NXGE_ERROR | NXGE_DDI_FAILED);
907 	nxgep = NULL;
908 
909 nxge_attach_exit:
910 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_attach status = 0x%08x",
911 	    status));
912 
913 	return (status);
914 }
915 
916 static int
917 nxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
918 {
919 	int 		status = DDI_SUCCESS;
920 	int 		instance;
921 	p_nxge_t 	nxgep = NULL;
922 
923 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_detach"));
924 	instance = ddi_get_instance(dip);
925 	nxgep = ddi_get_soft_state(nxge_list, instance);
926 	if (nxgep == NULL) {
927 		status = DDI_FAILURE;
928 		goto nxge_detach_exit;
929 	}
930 
931 	switch (cmd) {
932 	case DDI_DETACH:
933 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_DETACH"));
934 		break;
935 
936 	case DDI_PM_SUSPEND:
937 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
938 		nxgep->suspended = DDI_PM_SUSPEND;
939 		nxge_suspend(nxgep);
940 		break;
941 
942 	case DDI_SUSPEND:
943 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_SUSPEND"));
944 		if (nxgep->suspended != DDI_PM_SUSPEND) {
945 			nxgep->suspended = DDI_SUSPEND;
946 			nxge_suspend(nxgep);
947 		}
948 		break;
949 
950 	default:
951 		status = DDI_FAILURE;
952 	}
953 
954 	if (cmd != DDI_DETACH)
955 		goto nxge_detach_exit;
956 
957 	/*
958 	 * Stop the xcvr polling.
959 	 */
960 	nxgep->suspended = cmd;
961 
962 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
963 
964 	if (isLDOMguest(nxgep)) {
965 		if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
966 			nxge_m_stop((void *)nxgep);
967 		nxge_hio_unregister(nxgep);
968 	} else if (nxgep->mach && (status = mac_unregister(nxgep->mach)) != 0) {
969 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
970 		    "<== nxge_detach status = 0x%08X", status));
971 		return (DDI_FAILURE);
972 	}
973 
974 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
975 	    "<== nxge_detach (mac_unregister) status = 0x%08X", status));
976 
977 	nxge_unattach(nxgep);
978 	nxgep = NULL;
979 
980 nxge_detach_exit:
981 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_detach status = 0x%08X",
982 	    status));
983 
984 	return (status);
985 }
986 
987 static void
988 nxge_unattach(p_nxge_t nxgep)
989 {
990 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unattach"));
991 
992 	if (nxgep == NULL || nxgep->dev_regs == NULL) {
993 		return;
994 	}
995 
996 	nxgep->nxge_magic = 0;
997 
998 	if (nxgep->nxge_timerid) {
999 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1000 		nxgep->nxge_timerid = 0;
1001 	}
1002 
1003 	/*
1004 	 * If this flag is set, it will affect the Neptune
1005 	 * only.
1006 	 */
1007 	if ((nxgep->niu_type != N2_NIU) && nxge_peu_reset_enable) {
1008 		nxge_niu_peu_reset(nxgep);
1009 	}
1010 
1011 #if	defined(sun4v)
1012 	if (isLDOMguest(nxgep)) {
1013 		(void) nxge_hio_vr_release(nxgep);
1014 	}
1015 #endif
1016 
1017 	if (nxgep->nxge_hw_p) {
1018 		nxge_uninit_common_dev(nxgep);
1019 		nxgep->nxge_hw_p = NULL;
1020 	}
1021 
1022 #if	defined(sun4v)
1023 	if (nxgep->niu_type == N2_NIU && nxgep->niu_hsvc_available == B_TRUE) {
1024 		(void) hsvc_unregister(&nxgep->niu_hsvc);
1025 		nxgep->niu_hsvc_available = B_FALSE;
1026 	}
1027 #endif
1028 	/*
1029 	 * Stop any further interrupts.
1030 	 */
1031 	nxge_remove_intrs(nxgep);
1032 
1033 	/*
1034 	 * Stop the device and free resources.
1035 	 */
1036 	if (!isLDOMguest(nxgep)) {
1037 		nxge_destroy_dev(nxgep);
1038 	}
1039 
1040 	/*
1041 	 * Tear down the ndd parameters setup.
1042 	 */
1043 	nxge_destroy_param(nxgep);
1044 
1045 	/*
1046 	 * Tear down the kstat setup.
1047 	 */
1048 	nxge_destroy_kstats(nxgep);
1049 
1050 	/*
1051 	 * Destroy all mutexes.
1052 	 */
1053 	nxge_destroy_mutexes(nxgep);
1054 
1055 	/*
1056 	 * Remove the list of ndd parameters which
1057 	 * were setup during attach.
1058 	 */
1059 	if (nxgep->dip) {
1060 		NXGE_DEBUG_MSG((nxgep, OBP_CTL,
1061 		    " nxge_unattach: remove all properties"));
1062 
1063 		(void) ddi_prop_remove_all(nxgep->dip);
1064 	}
1065 
1066 #if NXGE_PROPERTY
1067 	nxge_remove_hard_properties(nxgep);
1068 #endif
1069 
1070 	/*
1071 	 * Unmap the register setup.
1072 	 */
1073 	nxge_unmap_regs(nxgep);
1074 
1075 	nxge_fm_fini(nxgep);
1076 
1077 	ddi_soft_state_free(nxge_list, nxgep->instance);
1078 
1079 	NXGE_DEBUG_MSG((NULL, DDI_CTL, "<== nxge_unattach"));
1080 }
1081 
1082 #if defined(sun4v)
1083 int
1084 nxge_hsvc_register(nxge_t *nxgep)
1085 {
1086 	nxge_status_t status;
1087 
1088 	if (nxgep->niu_type == N2_NIU) {
1089 		nxgep->niu_hsvc_available = B_FALSE;
1090 		bcopy(&niu_hsvc, &nxgep->niu_hsvc, sizeof (hsvc_info_t));
1091 		if ((status = hsvc_register(&nxgep->niu_hsvc,
1092 		    &nxgep->niu_min_ver)) != 0) {
1093 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1094 			    "nxge_attach: %s: cannot negotiate "
1095 			    "hypervisor services revision %d group: 0x%lx "
1096 			    "major: 0x%lx minor: 0x%lx errno: %d",
1097 			    niu_hsvc.hsvc_modname, niu_hsvc.hsvc_rev,
1098 			    niu_hsvc.hsvc_group, niu_hsvc.hsvc_major,
1099 			    niu_hsvc.hsvc_minor, status));
1100 			return (DDI_FAILURE);
1101 		}
1102 		nxgep->niu_hsvc_available = B_TRUE;
1103 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1104 		    "NIU Hypervisor service enabled"));
1105 	}
1106 
1107 	return (DDI_SUCCESS);
1108 }
1109 #endif
1110 
1111 static char n2_siu_name[] = "niu";
1112 
1113 static nxge_status_t
1114 nxge_map_regs(p_nxge_t nxgep)
1115 {
1116 	int		ddi_status = DDI_SUCCESS;
1117 	p_dev_regs_t 	dev_regs;
1118 	char		buf[MAXPATHLEN + 1];
1119 	char 		*devname;
1120 #ifdef	NXGE_DEBUG
1121 	char 		*sysname;
1122 #endif
1123 	off_t		regsize;
1124 	nxge_status_t	status = NXGE_OK;
1125 #if !defined(_BIG_ENDIAN)
1126 	off_t pci_offset;
1127 	uint16_t pcie_devctl;
1128 #endif
1129 
1130 	if (isLDOMguest(nxgep)) {
1131 		return (nxge_guest_regs_map(nxgep));
1132 	}
1133 
1134 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_map_regs"));
1135 	nxgep->dev_regs = NULL;
1136 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
1137 	dev_regs->nxge_regh = NULL;
1138 	dev_regs->nxge_pciregh = NULL;
1139 	dev_regs->nxge_msix_regh = NULL;
1140 	dev_regs->nxge_vir_regh = NULL;
1141 	dev_regs->nxge_vir2_regh = NULL;
1142 	nxgep->niu_type = NIU_TYPE_NONE;
1143 
1144 	devname = ddi_pathname(nxgep->dip, buf);
1145 	ASSERT(strlen(devname) > 0);
1146 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1147 	    "nxge_map_regs: pathname devname %s", devname));
1148 
1149 	/*
1150 	 * The driver is running on a N2-NIU system if devname is something
1151 	 * like "/niu@80/network@0"
1152 	 */
1153 	if (strstr(devname, n2_siu_name)) {
1154 		/* N2/NIU */
1155 		nxgep->niu_type = N2_NIU;
1156 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1157 		    "nxge_map_regs: N2/NIU devname %s", devname));
1158 		/* get function number */
1159 		nxgep->function_num =
1160 		    (devname[strlen(devname) -1] == '1' ? 1 : 0);
1161 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1162 		    "nxge_map_regs: N2/NIU function number %d",
1163 		    nxgep->function_num));
1164 	} else {
1165 		int		*prop_val;
1166 		uint_t 		prop_len;
1167 		uint8_t 	func_num;
1168 
1169 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, nxgep->dip,
1170 		    0, "reg",
1171 		    &prop_val, &prop_len) != DDI_PROP_SUCCESS) {
1172 			NXGE_DEBUG_MSG((nxgep, VPD_CTL,
1173 			    "Reg property not found"));
1174 			ddi_status = DDI_FAILURE;
1175 			goto nxge_map_regs_fail0;
1176 
1177 		} else {
1178 			func_num = (prop_val[0] >> 8) & 0x7;
1179 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1180 			    "Reg property found: fun # %d",
1181 			    func_num));
1182 			nxgep->function_num = func_num;
1183 			if (isLDOMguest(nxgep)) {
1184 				nxgep->function_num /= 2;
1185 				return (NXGE_OK);
1186 			}
1187 			ddi_prop_free(prop_val);
1188 		}
1189 	}
1190 
1191 	switch (nxgep->niu_type) {
1192 	default:
1193 		(void) ddi_dev_regsize(nxgep->dip, 0, &regsize);
1194 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1195 		    "nxge_map_regs: pci config size 0x%x", regsize));
1196 
1197 		ddi_status = ddi_regs_map_setup(nxgep->dip, 0,
1198 		    (caddr_t *)&(dev_regs->nxge_pciregp), 0, 0,
1199 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_pciregh);
1200 		if (ddi_status != DDI_SUCCESS) {
1201 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1202 			    "ddi_map_regs, nxge bus config regs failed"));
1203 			goto nxge_map_regs_fail0;
1204 		}
1205 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1206 		    "nxge_map_reg: PCI config addr 0x%0llx "
1207 		    " handle 0x%0llx", dev_regs->nxge_pciregp,
1208 		    dev_regs->nxge_pciregh));
1209 			/*
1210 			 * IMP IMP
1211 			 * workaround  for bit swapping bug in HW
1212 			 * which ends up in no-snoop = yes
1213 			 * resulting, in DMA not synched properly
1214 			 */
1215 #if !defined(_BIG_ENDIAN)
1216 		/* workarounds for x86 systems */
1217 		pci_offset = 0x80 + PCIE_DEVCTL;
1218 		pcie_devctl = pci_config_get16(dev_regs->nxge_pciregh,
1219 		    pci_offset);
1220 		pcie_devctl &= ~PCIE_DEVCTL_ENABLE_NO_SNOOP;
1221 		pcie_devctl |= PCIE_DEVCTL_RO_EN;
1222 		pci_config_put16(dev_regs->nxge_pciregh, pci_offset,
1223 		    pcie_devctl);
1224 #endif
1225 
1226 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1227 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1228 		    "nxge_map_regs: pio size 0x%x", regsize));
1229 		/* set up the device mapped register */
1230 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1231 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1232 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1233 		if (ddi_status != DDI_SUCCESS) {
1234 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1235 			    "ddi_map_regs for Neptune global reg failed"));
1236 			goto nxge_map_regs_fail1;
1237 		}
1238 
1239 		/* set up the msi/msi-x mapped register */
1240 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1241 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1242 		    "nxge_map_regs: msix size 0x%x", regsize));
1243 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1244 		    (caddr_t *)&(dev_regs->nxge_msix_regp), 0, 0,
1245 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_msix_regh);
1246 		if (ddi_status != DDI_SUCCESS) {
1247 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1248 			    "ddi_map_regs for msi reg failed"));
1249 			goto nxge_map_regs_fail2;
1250 		}
1251 
1252 		/* set up the vio region mapped register */
1253 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1254 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1255 		    "nxge_map_regs: vio size 0x%x", regsize));
1256 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1257 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1258 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1259 
1260 		if (ddi_status != DDI_SUCCESS) {
1261 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1262 			    "ddi_map_regs for nxge vio reg failed"));
1263 			goto nxge_map_regs_fail3;
1264 		}
1265 		nxgep->dev_regs = dev_regs;
1266 
1267 		NPI_PCI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_pciregh);
1268 		NPI_PCI_ADD_HANDLE_SET(nxgep,
1269 		    (npi_reg_ptr_t)dev_regs->nxge_pciregp);
1270 		NPI_MSI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_msix_regh);
1271 		NPI_MSI_ADD_HANDLE_SET(nxgep,
1272 		    (npi_reg_ptr_t)dev_regs->nxge_msix_regp);
1273 
1274 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1275 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1276 
1277 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1278 		NPI_REG_ADD_HANDLE_SET(nxgep,
1279 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1280 
1281 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1282 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1283 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1284 
1285 		break;
1286 
1287 	case N2_NIU:
1288 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "ddi_map_regs, NIU"));
1289 		/*
1290 		 * Set up the device mapped register (FWARC 2006/556)
1291 		 * (changed back to 1: reg starts at 1!)
1292 		 */
1293 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1294 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1295 		    "nxge_map_regs: dev size 0x%x", regsize));
1296 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1297 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1298 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1299 
1300 		if (ddi_status != DDI_SUCCESS) {
1301 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1302 			    "ddi_map_regs for N2/NIU, global reg failed "));
1303 			goto nxge_map_regs_fail1;
1304 		}
1305 
1306 		/* set up the first vio region mapped register */
1307 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1308 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1309 		    "nxge_map_regs: vio (1) size 0x%x", regsize));
1310 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1311 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1312 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1313 
1314 		if (ddi_status != DDI_SUCCESS) {
1315 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1316 			    "ddi_map_regs for nxge vio reg failed"));
1317 			goto nxge_map_regs_fail2;
1318 		}
1319 		/* set up the second 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 (3) size 0x%x", regsize));
1323 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1324 		    (caddr_t *)&(dev_regs->nxge_vir2_regp), 0, 0,
1325 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir2_regh);
1326 
1327 		if (ddi_status != DDI_SUCCESS) {
1328 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1329 			    "ddi_map_regs for nxge vio2 reg failed"));
1330 			goto nxge_map_regs_fail3;
1331 		}
1332 		nxgep->dev_regs = dev_regs;
1333 
1334 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1335 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1336 
1337 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1338 		NPI_REG_ADD_HANDLE_SET(nxgep,
1339 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1340 
1341 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1342 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1343 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1344 
1345 		NPI_V2REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir2_regh);
1346 		NPI_V2REG_ADD_HANDLE_SET(nxgep,
1347 		    (npi_reg_ptr_t)dev_regs->nxge_vir2_regp);
1348 
1349 		break;
1350 	}
1351 
1352 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "nxge_map_reg: hardware addr 0x%0llx "
1353 	    " handle 0x%0llx", dev_regs->nxge_regp, dev_regs->nxge_regh));
1354 
1355 	goto nxge_map_regs_exit;
1356 nxge_map_regs_fail3:
1357 	if (dev_regs->nxge_msix_regh) {
1358 		ddi_regs_map_free(&dev_regs->nxge_msix_regh);
1359 	}
1360 	if (dev_regs->nxge_vir_regh) {
1361 		ddi_regs_map_free(&dev_regs->nxge_regh);
1362 	}
1363 nxge_map_regs_fail2:
1364 	if (dev_regs->nxge_regh) {
1365 		ddi_regs_map_free(&dev_regs->nxge_regh);
1366 	}
1367 nxge_map_regs_fail1:
1368 	if (dev_regs->nxge_pciregh) {
1369 		ddi_regs_map_free(&dev_regs->nxge_pciregh);
1370 	}
1371 nxge_map_regs_fail0:
1372 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Freeing register set memory"));
1373 	kmem_free(dev_regs, sizeof (dev_regs_t));
1374 
1375 nxge_map_regs_exit:
1376 	if (ddi_status != DDI_SUCCESS)
1377 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1378 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_map_regs"));
1379 	return (status);
1380 }
1381 
1382 static void
1383 nxge_unmap_regs(p_nxge_t nxgep)
1384 {
1385 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unmap_regs"));
1386 
1387 	if (isLDOMguest(nxgep)) {
1388 		nxge_guest_regs_map_free(nxgep);
1389 		return;
1390 	}
1391 
1392 	if (nxgep->dev_regs) {
1393 		if (nxgep->dev_regs->nxge_pciregh) {
1394 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1395 			    "==> nxge_unmap_regs: bus"));
1396 			ddi_regs_map_free(&nxgep->dev_regs->nxge_pciregh);
1397 			nxgep->dev_regs->nxge_pciregh = NULL;
1398 		}
1399 		if (nxgep->dev_regs->nxge_regh) {
1400 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1401 			    "==> nxge_unmap_regs: device registers"));
1402 			ddi_regs_map_free(&nxgep->dev_regs->nxge_regh);
1403 			nxgep->dev_regs->nxge_regh = NULL;
1404 		}
1405 		if (nxgep->dev_regs->nxge_msix_regh) {
1406 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1407 			    "==> nxge_unmap_regs: device interrupts"));
1408 			ddi_regs_map_free(&nxgep->dev_regs->nxge_msix_regh);
1409 			nxgep->dev_regs->nxge_msix_regh = NULL;
1410 		}
1411 		if (nxgep->dev_regs->nxge_vir_regh) {
1412 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1413 			    "==> nxge_unmap_regs: vio region"));
1414 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir_regh);
1415 			nxgep->dev_regs->nxge_vir_regh = NULL;
1416 		}
1417 		if (nxgep->dev_regs->nxge_vir2_regh) {
1418 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1419 			    "==> nxge_unmap_regs: vio2 region"));
1420 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir2_regh);
1421 			nxgep->dev_regs->nxge_vir2_regh = NULL;
1422 		}
1423 
1424 		kmem_free(nxgep->dev_regs, sizeof (dev_regs_t));
1425 		nxgep->dev_regs = NULL;
1426 	}
1427 
1428 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_unmap_regs"));
1429 }
1430 
1431 static nxge_status_t
1432 nxge_setup_mutexes(p_nxge_t nxgep)
1433 {
1434 	int ddi_status = DDI_SUCCESS;
1435 	nxge_status_t status = NXGE_OK;
1436 	nxge_classify_t *classify_ptr;
1437 	int partition;
1438 
1439 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_mutexes"));
1440 
1441 	/*
1442 	 * Get the interrupt cookie so the mutexes can be
1443 	 * Initialized.
1444 	 */
1445 	if (isLDOMguest(nxgep)) {
1446 		nxgep->interrupt_cookie = 0;
1447 	} else {
1448 		ddi_status = ddi_get_iblock_cookie(nxgep->dip, 0,
1449 		    &nxgep->interrupt_cookie);
1450 
1451 		if (ddi_status != DDI_SUCCESS) {
1452 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1453 			    "<== nxge_setup_mutexes: failed 0x%x",
1454 			    ddi_status));
1455 			goto nxge_setup_mutexes_exit;
1456 		}
1457 	}
1458 
1459 	cv_init(&nxgep->poll_cv, NULL, CV_DRIVER, NULL);
1460 	MUTEX_INIT(&nxgep->poll_lock, NULL,
1461 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1462 
1463 	/*
1464 	 * Initialize mutexes for this device.
1465 	 */
1466 	MUTEX_INIT(nxgep->genlock, NULL,
1467 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1468 	MUTEX_INIT(&nxgep->ouraddr_lock, NULL,
1469 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1470 	MUTEX_INIT(&nxgep->mif_lock, NULL,
1471 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1472 	MUTEX_INIT(&nxgep->group_lock, NULL,
1473 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1474 	RW_INIT(&nxgep->filter_lock, NULL,
1475 	    RW_DRIVER, (void *)nxgep->interrupt_cookie);
1476 
1477 	classify_ptr = &nxgep->classifier;
1478 		/*
1479 		 * FFLP Mutexes are never used in interrupt context
1480 		 * as fflp operation can take very long time to
1481 		 * complete and hence not suitable to invoke from interrupt
1482 		 * handlers.
1483 		 */
1484 	MUTEX_INIT(&classify_ptr->tcam_lock, NULL,
1485 	    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1486 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1487 		MUTEX_INIT(&classify_ptr->fcram_lock, NULL,
1488 		    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1489 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1490 			MUTEX_INIT(&classify_ptr->hash_lock[partition], NULL,
1491 			    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1492 		}
1493 	}
1494 
1495 nxge_setup_mutexes_exit:
1496 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1497 	    "<== nxge_setup_mutexes status = %x", status));
1498 
1499 	if (ddi_status != DDI_SUCCESS)
1500 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1501 
1502 	return (status);
1503 }
1504 
1505 static void
1506 nxge_destroy_mutexes(p_nxge_t nxgep)
1507 {
1508 	int partition;
1509 	nxge_classify_t *classify_ptr;
1510 
1511 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_mutexes"));
1512 	RW_DESTROY(&nxgep->filter_lock);
1513 	MUTEX_DESTROY(&nxgep->group_lock);
1514 	MUTEX_DESTROY(&nxgep->mif_lock);
1515 	MUTEX_DESTROY(&nxgep->ouraddr_lock);
1516 	MUTEX_DESTROY(nxgep->genlock);
1517 
1518 	classify_ptr = &nxgep->classifier;
1519 	MUTEX_DESTROY(&classify_ptr->tcam_lock);
1520 
1521 	/* Destroy all polling resources. */
1522 	MUTEX_DESTROY(&nxgep->poll_lock);
1523 	cv_destroy(&nxgep->poll_cv);
1524 
1525 	/* free data structures, based on HW type */
1526 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1527 		MUTEX_DESTROY(&classify_ptr->fcram_lock);
1528 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1529 			MUTEX_DESTROY(&classify_ptr->hash_lock[partition]);
1530 		}
1531 	}
1532 
1533 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_mutexes"));
1534 }
1535 
1536 nxge_status_t
1537 nxge_init(p_nxge_t nxgep)
1538 {
1539 	nxge_status_t status = NXGE_OK;
1540 
1541 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_init"));
1542 
1543 	if (nxgep->drv_state & STATE_HW_INITIALIZED) {
1544 		return (status);
1545 	}
1546 
1547 	/*
1548 	 * Allocate system memory for the receive/transmit buffer blocks
1549 	 * and receive/transmit descriptor rings.
1550 	 */
1551 	status = nxge_alloc_mem_pool(nxgep);
1552 	if (status != NXGE_OK) {
1553 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "alloc mem failed\n"));
1554 		goto nxge_init_fail1;
1555 	}
1556 
1557 	if (!isLDOMguest(nxgep)) {
1558 		/*
1559 		 * Initialize and enable the TXC registers.
1560 		 * (Globally enable the Tx controller,
1561 		 *  enable the port, configure the dma channel bitmap,
1562 		 *  configure the max burst size).
1563 		 */
1564 		status = nxge_txc_init(nxgep);
1565 		if (status != NXGE_OK) {
1566 			NXGE_ERROR_MSG((nxgep,
1567 			    NXGE_ERR_CTL, "init txc failed\n"));
1568 			goto nxge_init_fail2;
1569 		}
1570 	}
1571 
1572 	/*
1573 	 * Initialize and enable TXDMA channels.
1574 	 */
1575 	status = nxge_init_txdma_channels(nxgep);
1576 	if (status != NXGE_OK) {
1577 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init txdma failed\n"));
1578 		goto nxge_init_fail3;
1579 	}
1580 
1581 	/*
1582 	 * Initialize and enable RXDMA channels.
1583 	 */
1584 	status = nxge_init_rxdma_channels(nxgep);
1585 	if (status != NXGE_OK) {
1586 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init rxdma failed\n"));
1587 		goto nxge_init_fail4;
1588 	}
1589 
1590 	/*
1591 	 * The guest domain is now done.
1592 	 */
1593 	if (isLDOMguest(nxgep)) {
1594 		nxgep->drv_state |= STATE_HW_INITIALIZED;
1595 		goto nxge_init_exit;
1596 	}
1597 
1598 	/*
1599 	 * Initialize TCAM and FCRAM (Neptune).
1600 	 */
1601 	status = nxge_classify_init(nxgep);
1602 	if (status != NXGE_OK) {
1603 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init classify failed\n"));
1604 		goto nxge_init_fail5;
1605 	}
1606 
1607 	/*
1608 	 * Initialize ZCP
1609 	 */
1610 	status = nxge_zcp_init(nxgep);
1611 	if (status != NXGE_OK) {
1612 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init ZCP failed\n"));
1613 		goto nxge_init_fail5;
1614 	}
1615 
1616 	/*
1617 	 * Initialize IPP.
1618 	 */
1619 	status = nxge_ipp_init(nxgep);
1620 	if (status != NXGE_OK) {
1621 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init IPP failed\n"));
1622 		goto nxge_init_fail5;
1623 	}
1624 
1625 	/*
1626 	 * Initialize the MAC block.
1627 	 */
1628 	status = nxge_mac_init(nxgep);
1629 	if (status != NXGE_OK) {
1630 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init MAC failed\n"));
1631 		goto nxge_init_fail5;
1632 	}
1633 
1634 	/*
1635 	 * Enable the interrrupts for DDI.
1636 	 */
1637 	nxge_intrs_enable(nxgep);
1638 
1639 	nxgep->drv_state |= STATE_HW_INITIALIZED;
1640 
1641 	goto nxge_init_exit;
1642 
1643 nxge_init_fail5:
1644 	nxge_uninit_rxdma_channels(nxgep);
1645 nxge_init_fail4:
1646 	nxge_uninit_txdma_channels(nxgep);
1647 nxge_init_fail3:
1648 	if (!isLDOMguest(nxgep)) {
1649 		(void) nxge_txc_uninit(nxgep);
1650 	}
1651 nxge_init_fail2:
1652 	nxge_free_mem_pool(nxgep);
1653 nxge_init_fail1:
1654 	NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1655 	    "<== nxge_init status (failed) = 0x%08x", status));
1656 	return (status);
1657 
1658 nxge_init_exit:
1659 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_init status = 0x%08x",
1660 	    status));
1661 	return (status);
1662 }
1663 
1664 
1665 timeout_id_t
1666 nxge_start_timer(p_nxge_t nxgep, fptrv_t func, int msec)
1667 {
1668 	if ((nxgep->suspended == 0) || (nxgep->suspended == DDI_RESUME)) {
1669 		return (timeout(func, (caddr_t)nxgep,
1670 		    drv_usectohz(1000 * msec)));
1671 	}
1672 	return (NULL);
1673 }
1674 
1675 /*ARGSUSED*/
1676 void
1677 nxge_stop_timer(p_nxge_t nxgep, timeout_id_t timerid)
1678 {
1679 	if (timerid) {
1680 		(void) untimeout(timerid);
1681 	}
1682 }
1683 
1684 void
1685 nxge_uninit(p_nxge_t nxgep)
1686 {
1687 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_uninit"));
1688 
1689 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
1690 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1691 		    "==> nxge_uninit: not initialized"));
1692 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1693 		    "<== nxge_uninit"));
1694 		return;
1695 	}
1696 
1697 	if (!isLDOMguest(nxgep)) {
1698 		/*
1699 		 * Reset the receive MAC side.
1700 		 */
1701 		(void) nxge_rx_mac_disable(nxgep);
1702 
1703 		/*
1704 		 * Drain the IPP.
1705 		 */
1706 		(void) nxge_ipp_drain(nxgep);
1707 	}
1708 
1709 	/* stop timer */
1710 	if (nxgep->nxge_timerid) {
1711 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1712 		nxgep->nxge_timerid = 0;
1713 	}
1714 
1715 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
1716 	(void) nxge_intr_hw_disable(nxgep);
1717 
1718 
1719 	/* Disable and soft reset the IPP */
1720 	if (!isLDOMguest(nxgep))
1721 		(void) nxge_ipp_disable(nxgep);
1722 
1723 	/* Free classification resources */
1724 	(void) nxge_classify_uninit(nxgep);
1725 
1726 	/*
1727 	 * Reset the transmit/receive DMA side.
1728 	 */
1729 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
1730 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
1731 
1732 	nxge_uninit_txdma_channels(nxgep);
1733 	nxge_uninit_rxdma_channels(nxgep);
1734 
1735 	/*
1736 	 * Reset the transmit MAC side.
1737 	 */
1738 	(void) nxge_tx_mac_disable(nxgep);
1739 
1740 	nxge_free_mem_pool(nxgep);
1741 
1742 	/*
1743 	 * Start the timer if the reset flag is not set.
1744 	 * If this reset flag is set, the link monitor
1745 	 * will not be started in order to stop furthur bus
1746 	 * activities coming from this interface.
1747 	 * The driver will start the monitor function
1748 	 * if the interface was initialized again later.
1749 	 */
1750 	if (!nxge_peu_reset_enable) {
1751 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1752 	}
1753 
1754 	nxgep->drv_state &= ~STATE_HW_INITIALIZED;
1755 
1756 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_uninit: "
1757 	    "nxge_mblks_pending %d", nxge_mblks_pending));
1758 }
1759 
1760 void
1761 nxge_get64(p_nxge_t nxgep, p_mblk_t mp)
1762 {
1763 	uint64_t	reg;
1764 	uint64_t	regdata;
1765 	int		i, retry;
1766 
1767 	bcopy((char *)mp->b_rptr, (char *)&reg, sizeof (uint64_t));
1768 	regdata = 0;
1769 	retry = 1;
1770 
1771 	for (i = 0; i < retry; i++) {
1772 		NXGE_REG_RD64(nxgep->npi_handle, reg, &regdata);
1773 	}
1774 	bcopy((char *)&regdata, (char *)mp->b_rptr, sizeof (uint64_t));
1775 }
1776 
1777 void
1778 nxge_put64(p_nxge_t nxgep, p_mblk_t mp)
1779 {
1780 	uint64_t	reg;
1781 	uint64_t	buf[2];
1782 
1783 	bcopy((char *)mp->b_rptr, (char *)&buf[0], 2 * sizeof (uint64_t));
1784 	reg = buf[0];
1785 
1786 	NXGE_NPI_PIO_WRITE64(nxgep->npi_handle, reg, buf[1]);
1787 }
1788 
1789 
1790 nxge_os_mutex_t nxgedebuglock;
1791 int nxge_debug_init = 0;
1792 
1793 /*ARGSUSED*/
1794 /*VARARGS*/
1795 void
1796 nxge_debug_msg(p_nxge_t nxgep, uint64_t level, char *fmt, ...)
1797 {
1798 	char msg_buffer[1048];
1799 	char prefix_buffer[32];
1800 	int instance;
1801 	uint64_t debug_level;
1802 	int cmn_level = CE_CONT;
1803 	va_list ap;
1804 
1805 	if (nxgep && nxgep->nxge_debug_level != nxge_debug_level) {
1806 		/* In case a developer has changed nxge_debug_level. */
1807 		if (nxgep->nxge_debug_level != nxge_debug_level)
1808 			nxgep->nxge_debug_level = nxge_debug_level;
1809 	}
1810 
1811 	debug_level = (nxgep == NULL) ? nxge_debug_level :
1812 	    nxgep->nxge_debug_level;
1813 
1814 	if ((level & debug_level) ||
1815 	    (level == NXGE_NOTE) ||
1816 	    (level == NXGE_ERR_CTL)) {
1817 		/* do the msg processing */
1818 		if (nxge_debug_init == 0) {
1819 			MUTEX_INIT(&nxgedebuglock, NULL, MUTEX_DRIVER, NULL);
1820 			nxge_debug_init = 1;
1821 		}
1822 
1823 		MUTEX_ENTER(&nxgedebuglock);
1824 
1825 		if ((level & NXGE_NOTE)) {
1826 			cmn_level = CE_NOTE;
1827 		}
1828 
1829 		if (level & NXGE_ERR_CTL) {
1830 			cmn_level = CE_WARN;
1831 		}
1832 
1833 		va_start(ap, fmt);
1834 		(void) vsprintf(msg_buffer, fmt, ap);
1835 		va_end(ap);
1836 		if (nxgep == NULL) {
1837 			instance = -1;
1838 			(void) sprintf(prefix_buffer, "%s :", "nxge");
1839 		} else {
1840 			instance = nxgep->instance;
1841 			(void) sprintf(prefix_buffer,
1842 			    "%s%d :", "nxge", instance);
1843 		}
1844 
1845 		MUTEX_EXIT(&nxgedebuglock);
1846 		cmn_err(cmn_level, "!%s %s\n",
1847 		    prefix_buffer, msg_buffer);
1848 
1849 	}
1850 }
1851 
1852 char *
1853 nxge_dump_packet(char *addr, int size)
1854 {
1855 	uchar_t *ap = (uchar_t *)addr;
1856 	int i;
1857 	static char etherbuf[1024];
1858 	char *cp = etherbuf;
1859 	char digits[] = "0123456789abcdef";
1860 
1861 	if (!size)
1862 		size = 60;
1863 
1864 	if (size > MAX_DUMP_SZ) {
1865 		/* Dump the leading bytes */
1866 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1867 			if (*ap > 0x0f)
1868 				*cp++ = digits[*ap >> 4];
1869 			*cp++ = digits[*ap++ & 0xf];
1870 			*cp++ = ':';
1871 		}
1872 		for (i = 0; i < 20; i++)
1873 			*cp++ = '.';
1874 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1875 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ/2));
1876 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1877 			if (*ap > 0x0f)
1878 				*cp++ = digits[*ap >> 4];
1879 			*cp++ = digits[*ap++ & 0xf];
1880 			*cp++ = ':';
1881 		}
1882 	} else {
1883 		for (i = 0; i < size; i++) {
1884 			if (*ap > 0x0f)
1885 				*cp++ = digits[*ap >> 4];
1886 			*cp++ = digits[*ap++ & 0xf];
1887 			*cp++ = ':';
1888 		}
1889 	}
1890 	*--cp = 0;
1891 	return (etherbuf);
1892 }
1893 
1894 #ifdef	NXGE_DEBUG
1895 static void
1896 nxge_test_map_regs(p_nxge_t nxgep)
1897 {
1898 	ddi_acc_handle_t cfg_handle;
1899 	p_pci_cfg_t	cfg_ptr;
1900 	ddi_acc_handle_t dev_handle;
1901 	char		*dev_ptr;
1902 	ddi_acc_handle_t pci_config_handle;
1903 	uint32_t	regval;
1904 	int		i;
1905 
1906 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_test_map_regs"));
1907 
1908 	dev_handle = nxgep->dev_regs->nxge_regh;
1909 	dev_ptr = (char *)nxgep->dev_regs->nxge_regp;
1910 
1911 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1912 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1913 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1914 
1915 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1916 		    "Neptune PCI regp cfg_ptr 0x%llx", (char *)cfg_ptr));
1917 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1918 		    "Neptune PCI cfg_ptr vendor id ptr 0x%llx",
1919 		    &cfg_ptr->vendorid));
1920 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1921 		    "\tvendorid 0x%x devid 0x%x",
1922 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->vendorid, 0),
1923 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->devid,    0)));
1924 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1925 		    "PCI BAR: base 0x%x base14 0x%x base 18 0x%x "
1926 		    "bar1c 0x%x",
1927 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base,   0),
1928 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base14, 0),
1929 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base18, 0),
1930 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base1c, 0)));
1931 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1932 		    "\nNeptune PCI BAR: base20 0x%x base24 0x%x "
1933 		    "base 28 0x%x bar2c 0x%x\n",
1934 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base20, 0),
1935 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base24, 0),
1936 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base28, 0),
1937 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base2c, 0)));
1938 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1939 		    "\nNeptune PCI BAR: base30 0x%x\n",
1940 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base30, 0)));
1941 
1942 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1943 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1944 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1945 		    "first  0x%llx second 0x%llx third 0x%llx "
1946 		    "last 0x%llx ",
1947 		    NXGE_PIO_READ64(dev_handle,
1948 		    (uint64_t *)(dev_ptr + 0),  0),
1949 		    NXGE_PIO_READ64(dev_handle,
1950 		    (uint64_t *)(dev_ptr + 8),  0),
1951 		    NXGE_PIO_READ64(dev_handle,
1952 		    (uint64_t *)(dev_ptr + 16), 0),
1953 		    NXGE_PIO_READ64(cfg_handle,
1954 		    (uint64_t *)(dev_ptr + 24), 0)));
1955 	}
1956 }
1957 
1958 #endif
1959 
1960 static void
1961 nxge_suspend(p_nxge_t nxgep)
1962 {
1963 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_suspend"));
1964 
1965 	nxge_intrs_disable(nxgep);
1966 	nxge_destroy_dev(nxgep);
1967 
1968 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_suspend"));
1969 }
1970 
1971 static nxge_status_t
1972 nxge_resume(p_nxge_t nxgep)
1973 {
1974 	nxge_status_t status = NXGE_OK;
1975 
1976 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_resume"));
1977 
1978 	nxgep->suspended = DDI_RESUME;
1979 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1980 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_START);
1981 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_START);
1982 	(void) nxge_rx_mac_enable(nxgep);
1983 	(void) nxge_tx_mac_enable(nxgep);
1984 	nxge_intrs_enable(nxgep);
1985 	nxgep->suspended = 0;
1986 
1987 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1988 	    "<== nxge_resume status = 0x%x", status));
1989 	return (status);
1990 }
1991 
1992 static nxge_status_t
1993 nxge_setup_dev(p_nxge_t nxgep)
1994 {
1995 	nxge_status_t	status = NXGE_OK;
1996 
1997 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_dev port %d",
1998 	    nxgep->mac.portnum));
1999 
2000 	status = nxge_link_init(nxgep);
2001 
2002 	if (fm_check_acc_handle(nxgep->dev_regs->nxge_regh) != DDI_FM_OK) {
2003 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2004 		    "port%d Bad register acc handle", nxgep->mac.portnum));
2005 		status = NXGE_ERROR;
2006 	}
2007 
2008 	if (status != NXGE_OK) {
2009 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2010 		    " nxge_setup_dev status "
2011 		    "(xcvr init 0x%08x)", status));
2012 		goto nxge_setup_dev_exit;
2013 	}
2014 
2015 nxge_setup_dev_exit:
2016 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2017 	    "<== nxge_setup_dev port %d status = 0x%08x",
2018 	    nxgep->mac.portnum, status));
2019 
2020 	return (status);
2021 }
2022 
2023 static void
2024 nxge_destroy_dev(p_nxge_t nxgep)
2025 {
2026 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_dev"));
2027 
2028 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
2029 
2030 	(void) nxge_hw_stop(nxgep);
2031 
2032 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_dev"));
2033 }
2034 
2035 static nxge_status_t
2036 nxge_setup_system_dma_pages(p_nxge_t nxgep)
2037 {
2038 	int 			ddi_status = DDI_SUCCESS;
2039 	uint_t 			count;
2040 	ddi_dma_cookie_t 	cookie;
2041 	uint_t 			iommu_pagesize;
2042 	nxge_status_t		status = NXGE_OK;
2043 
2044 	NXGE_ERROR_MSG((nxgep, DDI_CTL, "==> nxge_setup_system_dma_pages"));
2045 	nxgep->sys_page_sz = ddi_ptob(nxgep->dip, (ulong_t)1);
2046 	if (nxgep->niu_type != N2_NIU) {
2047 		iommu_pagesize = dvma_pagesize(nxgep->dip);
2048 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2049 		    " nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2050 		    " default_block_size %d iommu_pagesize %d",
2051 		    nxgep->sys_page_sz,
2052 		    ddi_ptob(nxgep->dip, (ulong_t)1),
2053 		    nxgep->rx_default_block_size,
2054 		    iommu_pagesize));
2055 
2056 		if (iommu_pagesize != 0) {
2057 			if (nxgep->sys_page_sz == iommu_pagesize) {
2058 				if (iommu_pagesize > 0x4000)
2059 					nxgep->sys_page_sz = 0x4000;
2060 			} else {
2061 				if (nxgep->sys_page_sz > iommu_pagesize)
2062 					nxgep->sys_page_sz = iommu_pagesize;
2063 			}
2064 		}
2065 	}
2066 	nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2067 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2068 	    "==> nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2069 	    "default_block_size %d page mask %d",
2070 	    nxgep->sys_page_sz,
2071 	    ddi_ptob(nxgep->dip, (ulong_t)1),
2072 	    nxgep->rx_default_block_size,
2073 	    nxgep->sys_page_mask));
2074 
2075 
2076 	switch (nxgep->sys_page_sz) {
2077 	default:
2078 		nxgep->sys_page_sz = 0x1000;
2079 		nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2080 		nxgep->rx_default_block_size = 0x1000;
2081 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2082 		break;
2083 	case 0x1000:
2084 		nxgep->rx_default_block_size = 0x1000;
2085 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2086 		break;
2087 	case 0x2000:
2088 		nxgep->rx_default_block_size = 0x2000;
2089 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2090 		break;
2091 	case 0x4000:
2092 		nxgep->rx_default_block_size = 0x4000;
2093 		nxgep->rx_bksize_code = RBR_BKSIZE_16K;
2094 		break;
2095 	case 0x8000:
2096 		nxgep->rx_default_block_size = 0x8000;
2097 		nxgep->rx_bksize_code = RBR_BKSIZE_32K;
2098 		break;
2099 	}
2100 
2101 #ifndef USE_RX_BIG_BUF
2102 	nxge_rx_dma_attr.dma_attr_align = nxgep->sys_page_sz;
2103 #else
2104 		nxgep->rx_default_block_size = 0x2000;
2105 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2106 #endif
2107 	/*
2108 	 * Get the system DMA burst size.
2109 	 */
2110 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, &nxge_tx_dma_attr,
2111 	    DDI_DMA_DONTWAIT, 0,
2112 	    &nxgep->dmasparehandle);
2113 	if (ddi_status != DDI_SUCCESS) {
2114 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2115 		    "ddi_dma_alloc_handle: failed "
2116 		    " status 0x%x", ddi_status));
2117 		goto nxge_get_soft_properties_exit;
2118 	}
2119 
2120 	ddi_status = ddi_dma_addr_bind_handle(nxgep->dmasparehandle, NULL,
2121 	    (caddr_t)nxgep->dmasparehandle,
2122 	    sizeof (nxgep->dmasparehandle),
2123 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2124 	    DDI_DMA_DONTWAIT, 0,
2125 	    &cookie, &count);
2126 	if (ddi_status != DDI_DMA_MAPPED) {
2127 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2128 		    "Binding spare handle to find system"
2129 		    " burstsize failed."));
2130 		ddi_status = DDI_FAILURE;
2131 		goto nxge_get_soft_properties_fail1;
2132 	}
2133 
2134 	nxgep->sys_burst_sz = ddi_dma_burstsizes(nxgep->dmasparehandle);
2135 	(void) ddi_dma_unbind_handle(nxgep->dmasparehandle);
2136 
2137 nxge_get_soft_properties_fail1:
2138 	ddi_dma_free_handle(&nxgep->dmasparehandle);
2139 
2140 nxge_get_soft_properties_exit:
2141 
2142 	if (ddi_status != DDI_SUCCESS)
2143 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2144 
2145 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2146 	    "<== nxge_setup_system_dma_pages status = 0x%08x", status));
2147 	return (status);
2148 }
2149 
2150 static nxge_status_t
2151 nxge_alloc_mem_pool(p_nxge_t nxgep)
2152 {
2153 	nxge_status_t	status = NXGE_OK;
2154 
2155 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_alloc_mem_pool"));
2156 
2157 	status = nxge_alloc_rx_mem_pool(nxgep);
2158 	if (status != NXGE_OK) {
2159 		return (NXGE_ERROR);
2160 	}
2161 
2162 	status = nxge_alloc_tx_mem_pool(nxgep);
2163 	if (status != NXGE_OK) {
2164 		nxge_free_rx_mem_pool(nxgep);
2165 		return (NXGE_ERROR);
2166 	}
2167 
2168 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_alloc_mem_pool"));
2169 	return (NXGE_OK);
2170 }
2171 
2172 static void
2173 nxge_free_mem_pool(p_nxge_t nxgep)
2174 {
2175 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_mem_pool"));
2176 
2177 	nxge_free_rx_mem_pool(nxgep);
2178 	nxge_free_tx_mem_pool(nxgep);
2179 
2180 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_mem_pool"));
2181 }
2182 
2183 nxge_status_t
2184 nxge_alloc_rx_mem_pool(p_nxge_t nxgep)
2185 {
2186 	uint32_t		rdc_max;
2187 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
2188 	p_nxge_hw_pt_cfg_t	p_cfgp;
2189 	p_nxge_dma_pool_t	dma_poolp;
2190 	p_nxge_dma_common_t	*dma_buf_p;
2191 	p_nxge_dma_pool_t	dma_cntl_poolp;
2192 	p_nxge_dma_common_t	*dma_cntl_p;
2193 	uint32_t 		*num_chunks; /* per dma */
2194 	nxge_status_t		status = NXGE_OK;
2195 
2196 	uint32_t		nxge_port_rbr_size;
2197 	uint32_t		nxge_port_rbr_spare_size;
2198 	uint32_t		nxge_port_rcr_size;
2199 	uint32_t		rx_cntl_alloc_size;
2200 
2201 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_mem_pool"));
2202 
2203 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
2204 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
2205 	rdc_max = NXGE_MAX_RDCS;
2206 
2207 	/*
2208 	 * Allocate memory for the common DMA data structures.
2209 	 */
2210 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2211 	    KM_SLEEP);
2212 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2213 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2214 
2215 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2216 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2217 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2218 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2219 
2220 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2221 	    sizeof (uint32_t) * rdc_max, KM_SLEEP);
2222 
2223 	/*
2224 	 * Assume that each DMA channel will be configured with
2225 	 * the default block size.
2226 	 * rbr block counts are modulo the batch count (16).
2227 	 */
2228 	nxge_port_rbr_size = p_all_cfgp->rbr_size;
2229 	nxge_port_rcr_size = p_all_cfgp->rcr_size;
2230 
2231 	if (!nxge_port_rbr_size) {
2232 		nxge_port_rbr_size = NXGE_RBR_RBB_DEFAULT;
2233 	}
2234 	if (nxge_port_rbr_size % NXGE_RXDMA_POST_BATCH) {
2235 		nxge_port_rbr_size = (NXGE_RXDMA_POST_BATCH *
2236 		    (nxge_port_rbr_size / NXGE_RXDMA_POST_BATCH + 1));
2237 	}
2238 
2239 	p_all_cfgp->rbr_size = nxge_port_rbr_size;
2240 	nxge_port_rbr_spare_size = nxge_rbr_spare_size;
2241 
2242 	if (nxge_port_rbr_spare_size % NXGE_RXDMA_POST_BATCH) {
2243 		nxge_port_rbr_spare_size = (NXGE_RXDMA_POST_BATCH *
2244 		    (nxge_port_rbr_spare_size / NXGE_RXDMA_POST_BATCH + 1));
2245 	}
2246 	if (nxge_port_rbr_size > RBR_DEFAULT_MAX_BLKS) {
2247 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2248 		    "nxge_alloc_rx_mem_pool: RBR size too high %d, "
2249 		    "set to default %d",
2250 		    nxge_port_rbr_size, RBR_DEFAULT_MAX_BLKS));
2251 		nxge_port_rbr_size = RBR_DEFAULT_MAX_BLKS;
2252 	}
2253 	if (nxge_port_rcr_size > RCR_DEFAULT_MAX) {
2254 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2255 		    "nxge_alloc_rx_mem_pool: RCR too high %d, "
2256 		    "set to default %d",
2257 		    nxge_port_rcr_size, RCR_DEFAULT_MAX));
2258 		nxge_port_rcr_size = RCR_DEFAULT_MAX;
2259 	}
2260 
2261 	/*
2262 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2263 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2264 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2265 	 * function).
2266 	 */
2267 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2268 	if (nxgep->niu_type == N2_NIU) {
2269 		nxge_port_rbr_spare_size = 0;
2270 		if ((nxge_port_rbr_size > NXGE_NIU_CONTIG_RBR_MAX) ||
2271 		    (!ISP2(nxge_port_rbr_size))) {
2272 			nxge_port_rbr_size = NXGE_NIU_CONTIG_RBR_MAX;
2273 		}
2274 		if ((nxge_port_rcr_size > NXGE_NIU_CONTIG_RCR_MAX) ||
2275 		    (!ISP2(nxge_port_rcr_size))) {
2276 			nxge_port_rcr_size = NXGE_NIU_CONTIG_RCR_MAX;
2277 		}
2278 	}
2279 #endif
2280 
2281 	/*
2282 	 * Addresses of receive block ring, receive completion ring and the
2283 	 * mailbox must be all cache-aligned (64 bytes).
2284 	 */
2285 	rx_cntl_alloc_size = nxge_port_rbr_size + nxge_port_rbr_spare_size;
2286 	rx_cntl_alloc_size *= (sizeof (rx_desc_t));
2287 	rx_cntl_alloc_size += (sizeof (rcr_entry_t) * nxge_port_rcr_size);
2288 	rx_cntl_alloc_size += sizeof (rxdma_mailbox_t);
2289 
2290 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_alloc_rx_mem_pool: "
2291 	    "nxge_port_rbr_size = %d nxge_port_rbr_spare_size = %d "
2292 	    "nxge_port_rcr_size = %d "
2293 	    "rx_cntl_alloc_size = %d",
2294 	    nxge_port_rbr_size, nxge_port_rbr_spare_size,
2295 	    nxge_port_rcr_size,
2296 	    rx_cntl_alloc_size));
2297 
2298 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2299 	if (nxgep->niu_type == N2_NIU) {
2300 		uint32_t rx_buf_alloc_size = (nxgep->rx_default_block_size *
2301 		    (nxge_port_rbr_size + nxge_port_rbr_spare_size));
2302 
2303 		if (!ISP2(rx_buf_alloc_size)) {
2304 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2305 			    "==> nxge_alloc_rx_mem_pool: "
2306 			    " must be power of 2"));
2307 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2308 			goto nxge_alloc_rx_mem_pool_exit;
2309 		}
2310 
2311 		if (rx_buf_alloc_size > (1 << 22)) {
2312 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2313 			    "==> nxge_alloc_rx_mem_pool: "
2314 			    " limit size to 4M"));
2315 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2316 			goto nxge_alloc_rx_mem_pool_exit;
2317 		}
2318 
2319 		if (rx_cntl_alloc_size < 0x2000) {
2320 			rx_cntl_alloc_size = 0x2000;
2321 		}
2322 	}
2323 #endif
2324 	nxgep->nxge_port_rbr_size = nxge_port_rbr_size;
2325 	nxgep->nxge_port_rcr_size = nxge_port_rcr_size;
2326 	nxgep->nxge_port_rbr_spare_size = nxge_port_rbr_spare_size;
2327 	nxgep->nxge_port_rx_cntl_alloc_size = rx_cntl_alloc_size;
2328 
2329 	dma_poolp->ndmas = p_cfgp->max_rdcs;
2330 	dma_poolp->num_chunks = num_chunks;
2331 	dma_poolp->buf_allocated = B_TRUE;
2332 	nxgep->rx_buf_pool_p = dma_poolp;
2333 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2334 
2335 	dma_cntl_poolp->ndmas = p_cfgp->max_rdcs;
2336 	dma_cntl_poolp->buf_allocated = B_TRUE;
2337 	nxgep->rx_cntl_pool_p = dma_cntl_poolp;
2338 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2339 
2340 	/* Allocate the receive rings, too. */
2341 	nxgep->rx_rbr_rings =
2342 	    KMEM_ZALLOC(sizeof (rx_rbr_rings_t), KM_SLEEP);
2343 	nxgep->rx_rbr_rings->rbr_rings =
2344 	    KMEM_ZALLOC(sizeof (p_rx_rbr_ring_t) * rdc_max, KM_SLEEP);
2345 	nxgep->rx_rcr_rings =
2346 	    KMEM_ZALLOC(sizeof (rx_rcr_rings_t), KM_SLEEP);
2347 	nxgep->rx_rcr_rings->rcr_rings =
2348 	    KMEM_ZALLOC(sizeof (p_rx_rcr_ring_t) * rdc_max, KM_SLEEP);
2349 	nxgep->rx_mbox_areas_p =
2350 	    KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
2351 	nxgep->rx_mbox_areas_p->rxmbox_areas =
2352 	    KMEM_ZALLOC(sizeof (p_rx_mbox_t) * rdc_max, KM_SLEEP);
2353 
2354 	nxgep->rx_rbr_rings->ndmas = nxgep->rx_rcr_rings->ndmas =
2355 	    p_cfgp->max_rdcs;
2356 
2357 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2358 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2359 
2360 nxge_alloc_rx_mem_pool_exit:
2361 	return (status);
2362 }
2363 
2364 /*
2365  * nxge_alloc_rxb
2366  *
2367  *	Allocate buffers for an RDC.
2368  *
2369  * Arguments:
2370  * 	nxgep
2371  * 	channel	The channel to map into our kernel space.
2372  *
2373  * Notes:
2374  *
2375  * NPI function calls:
2376  *
2377  * NXGE function calls:
2378  *
2379  * Registers accessed:
2380  *
2381  * Context:
2382  *
2383  * Taking apart:
2384  *
2385  * Open questions:
2386  *
2387  */
2388 nxge_status_t
2389 nxge_alloc_rxb(
2390 	p_nxge_t nxgep,
2391 	int channel)
2392 {
2393 	size_t			rx_buf_alloc_size;
2394 	nxge_status_t		status = NXGE_OK;
2395 
2396 	nxge_dma_common_t	**data;
2397 	nxge_dma_common_t	**control;
2398 	uint32_t 		*num_chunks;
2399 
2400 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2401 
2402 	/*
2403 	 * Allocate memory for the receive buffers and descriptor rings.
2404 	 * Replace these allocation functions with the interface functions
2405 	 * provided by the partition manager if/when they are available.
2406 	 */
2407 
2408 	/*
2409 	 * Allocate memory for the receive buffer blocks.
2410 	 */
2411 	rx_buf_alloc_size = (nxgep->rx_default_block_size *
2412 	    (nxgep->nxge_port_rbr_size + nxgep->nxge_port_rbr_spare_size));
2413 
2414 	data = &nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2415 	num_chunks = &nxgep->rx_buf_pool_p->num_chunks[channel];
2416 
2417 	if ((status = nxge_alloc_rx_buf_dma(
2418 	    nxgep, channel, data, rx_buf_alloc_size,
2419 	    nxgep->rx_default_block_size, num_chunks)) != NXGE_OK) {
2420 		return (status);
2421 	}
2422 
2423 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_alloc_rxb(): "
2424 	    "dma %d dma_buf_p %llx &dma_buf_p %llx", channel, *data, data));
2425 
2426 	/*
2427 	 * Allocate memory for descriptor rings and mailbox.
2428 	 */
2429 	control = &nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2430 
2431 	if ((status = nxge_alloc_rx_cntl_dma(
2432 	    nxgep, channel, control, nxgep->nxge_port_rx_cntl_alloc_size))
2433 	    != NXGE_OK) {
2434 		nxge_free_rx_cntl_dma(nxgep, *control);
2435 		(*data)->buf_alloc_state |= BUF_ALLOCATED_WAIT_FREE;
2436 		nxge_free_rx_buf_dma(nxgep, *data, *num_chunks);
2437 		return (status);
2438 	}
2439 
2440 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2441 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2442 
2443 	return (status);
2444 }
2445 
2446 void
2447 nxge_free_rxb(
2448 	p_nxge_t nxgep,
2449 	int channel)
2450 {
2451 	nxge_dma_common_t	*data;
2452 	nxge_dma_common_t	*control;
2453 	uint32_t 		num_chunks;
2454 
2455 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2456 
2457 	data = nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2458 	num_chunks = nxgep->rx_buf_pool_p->num_chunks[channel];
2459 	nxge_free_rx_buf_dma(nxgep, data, num_chunks);
2460 
2461 	nxgep->rx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2462 	nxgep->rx_buf_pool_p->num_chunks[channel] = 0;
2463 
2464 	control = nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2465 	nxge_free_rx_cntl_dma(nxgep, control);
2466 
2467 	nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2468 
2469 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2470 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2471 
2472 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_alloc_rbb"));
2473 }
2474 
2475 static void
2476 nxge_free_rx_mem_pool(p_nxge_t nxgep)
2477 {
2478 	int rdc_max = NXGE_MAX_RDCS;
2479 
2480 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_mem_pool"));
2481 
2482 	if (!nxgep->rx_buf_pool_p || !nxgep->rx_buf_pool_p->buf_allocated) {
2483 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2484 		    "<== nxge_free_rx_mem_pool "
2485 		    "(null rx buf pool or buf not allocated"));
2486 		return;
2487 	}
2488 	if (!nxgep->rx_cntl_pool_p || !nxgep->rx_cntl_pool_p->buf_allocated) {
2489 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2490 		    "<== nxge_free_rx_mem_pool "
2491 		    "(null rx cntl buf pool or cntl buf not allocated"));
2492 		return;
2493 	}
2494 
2495 	KMEM_FREE(nxgep->rx_cntl_pool_p->dma_buf_pool_p,
2496 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2497 	KMEM_FREE(nxgep->rx_cntl_pool_p, sizeof (nxge_dma_pool_t));
2498 
2499 	KMEM_FREE(nxgep->rx_buf_pool_p->num_chunks,
2500 	    sizeof (uint32_t) * rdc_max);
2501 	KMEM_FREE(nxgep->rx_buf_pool_p->dma_buf_pool_p,
2502 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2503 	KMEM_FREE(nxgep->rx_buf_pool_p, sizeof (nxge_dma_pool_t));
2504 
2505 	nxgep->rx_buf_pool_p = 0;
2506 	nxgep->rx_cntl_pool_p = 0;
2507 
2508 	KMEM_FREE(nxgep->rx_rbr_rings->rbr_rings,
2509 	    sizeof (p_rx_rbr_ring_t) * rdc_max);
2510 	KMEM_FREE(nxgep->rx_rbr_rings, sizeof (rx_rbr_rings_t));
2511 	KMEM_FREE(nxgep->rx_rcr_rings->rcr_rings,
2512 	    sizeof (p_rx_rcr_ring_t) * rdc_max);
2513 	KMEM_FREE(nxgep->rx_rcr_rings, sizeof (rx_rcr_rings_t));
2514 	KMEM_FREE(nxgep->rx_mbox_areas_p->rxmbox_areas,
2515 	    sizeof (p_rx_mbox_t) * rdc_max);
2516 	KMEM_FREE(nxgep->rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
2517 
2518 	nxgep->rx_rbr_rings = 0;
2519 	nxgep->rx_rcr_rings = 0;
2520 	nxgep->rx_mbox_areas_p = 0;
2521 
2522 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_rx_mem_pool"));
2523 }
2524 
2525 
2526 static nxge_status_t
2527 nxge_alloc_rx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2528 	p_nxge_dma_common_t *dmap,
2529 	size_t alloc_size, size_t block_size, uint32_t *num_chunks)
2530 {
2531 	p_nxge_dma_common_t 	rx_dmap;
2532 	nxge_status_t		status = NXGE_OK;
2533 	size_t			total_alloc_size;
2534 	size_t			allocated = 0;
2535 	int			i, size_index, array_size;
2536 	boolean_t		use_kmem_alloc = B_FALSE;
2537 
2538 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_buf_dma"));
2539 
2540 	rx_dmap = (p_nxge_dma_common_t)
2541 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2542 	    KM_SLEEP);
2543 
2544 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2545 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
2546 	    dma_channel, alloc_size, block_size, dmap));
2547 
2548 	total_alloc_size = alloc_size;
2549 
2550 #if defined(RX_USE_RECLAIM_POST)
2551 	total_alloc_size = alloc_size + alloc_size/4;
2552 #endif
2553 
2554 	i = 0;
2555 	size_index = 0;
2556 	array_size =  sizeof (alloc_sizes)/sizeof (size_t);
2557 	while ((size_index < array_size) &&
2558 	    (alloc_sizes[size_index] < alloc_size))
2559 		size_index++;
2560 	if (size_index >= array_size) {
2561 		size_index = array_size - 1;
2562 	}
2563 
2564 	/* For Neptune, use kmem_alloc if the kmem flag is set. */
2565 	if (nxgep->niu_type != N2_NIU && nxge_use_kmem_alloc) {
2566 		use_kmem_alloc = B_TRUE;
2567 #if defined(__i386) || defined(__amd64)
2568 		size_index = 0;
2569 #endif
2570 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2571 		    "==> nxge_alloc_rx_buf_dma: "
2572 		    "Neptune use kmem_alloc() - size_index %d",
2573 		    size_index));
2574 	}
2575 
2576 	while ((allocated < total_alloc_size) &&
2577 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2578 		rx_dmap[i].dma_chunk_index = i;
2579 		rx_dmap[i].block_size = block_size;
2580 		rx_dmap[i].alength = alloc_sizes[size_index];
2581 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
2582 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2583 		rx_dmap[i].dma_channel = dma_channel;
2584 		rx_dmap[i].contig_alloc_type = B_FALSE;
2585 		rx_dmap[i].kmem_alloc_type = B_FALSE;
2586 		rx_dmap[i].buf_alloc_type = DDI_MEM_ALLOC;
2587 
2588 		/*
2589 		 * N2/NIU: data buffers must be contiguous as the driver
2590 		 *	   needs to call Hypervisor api to set up
2591 		 *	   logical pages.
2592 		 */
2593 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2594 			rx_dmap[i].contig_alloc_type = B_TRUE;
2595 			rx_dmap[i].buf_alloc_type = CONTIG_MEM_ALLOC;
2596 		} else if (use_kmem_alloc) {
2597 			/* For Neptune, use kmem_alloc */
2598 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2599 			    "==> nxge_alloc_rx_buf_dma: "
2600 			    "Neptune use kmem_alloc()"));
2601 			rx_dmap[i].kmem_alloc_type = B_TRUE;
2602 			rx_dmap[i].buf_alloc_type = KMEM_ALLOC;
2603 		}
2604 
2605 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2606 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
2607 		    "i %d nblocks %d alength %d",
2608 		    dma_channel, i, &rx_dmap[i], block_size,
2609 		    i, rx_dmap[i].nblocks,
2610 		    rx_dmap[i].alength));
2611 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2612 		    &nxge_rx_dma_attr,
2613 		    rx_dmap[i].alength,
2614 		    &nxge_dev_buf_dma_acc_attr,
2615 		    DDI_DMA_READ | DDI_DMA_STREAMING,
2616 		    (p_nxge_dma_common_t)(&rx_dmap[i]));
2617 		if (status != NXGE_OK) {
2618 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2619 			    "nxge_alloc_rx_buf_dma: Alloc Failed: "
2620 			    "dma %d size_index %d size requested %d",
2621 			    dma_channel,
2622 			    size_index,
2623 			    rx_dmap[i].alength));
2624 			size_index--;
2625 		} else {
2626 			rx_dmap[i].buf_alloc_state = BUF_ALLOCATED;
2627 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2628 			    " nxge_alloc_rx_buf_dma DONE  alloc mem: "
2629 			    "dma %d dma_buf_p $%p kaddrp $%p alength %d "
2630 			    "buf_alloc_state %d alloc_type %d",
2631 			    dma_channel,
2632 			    &rx_dmap[i],
2633 			    rx_dmap[i].kaddrp,
2634 			    rx_dmap[i].alength,
2635 			    rx_dmap[i].buf_alloc_state,
2636 			    rx_dmap[i].buf_alloc_type));
2637 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2638 			    " alloc_rx_buf_dma allocated rdc %d "
2639 			    "chunk %d size %x dvma %x bufp %llx kaddrp $%p",
2640 			    dma_channel, i, rx_dmap[i].alength,
2641 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i],
2642 			    rx_dmap[i].kaddrp));
2643 			i++;
2644 			allocated += alloc_sizes[size_index];
2645 		}
2646 	}
2647 
2648 	if (allocated < total_alloc_size) {
2649 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2650 		    "==> nxge_alloc_rx_buf_dma: not enough for channel %d "
2651 		    "allocated 0x%x requested 0x%x",
2652 		    dma_channel,
2653 		    allocated, total_alloc_size));
2654 		status = NXGE_ERROR;
2655 		goto nxge_alloc_rx_mem_fail1;
2656 	}
2657 
2658 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2659 	    "==> nxge_alloc_rx_buf_dma: Allocated for channel %d "
2660 	    "allocated 0x%x requested 0x%x",
2661 	    dma_channel,
2662 	    allocated, total_alloc_size));
2663 
2664 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2665 	    " alloc_rx_buf_dma rdc %d allocated %d chunks",
2666 	    dma_channel, i));
2667 	*num_chunks = i;
2668 	*dmap = rx_dmap;
2669 
2670 	goto nxge_alloc_rx_mem_exit;
2671 
2672 nxge_alloc_rx_mem_fail1:
2673 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2674 
2675 nxge_alloc_rx_mem_exit:
2676 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2677 	    "<== nxge_alloc_rx_buf_dma status 0x%08x", status));
2678 
2679 	return (status);
2680 }
2681 
2682 /*ARGSUSED*/
2683 static void
2684 nxge_free_rx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2685     uint32_t num_chunks)
2686 {
2687 	int		i;
2688 
2689 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2690 	    "==> nxge_free_rx_buf_dma: # of chunks %d", num_chunks));
2691 
2692 	if (dmap == 0)
2693 		return;
2694 
2695 	for (i = 0; i < num_chunks; i++) {
2696 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2697 		    "==> nxge_free_rx_buf_dma: chunk %d dmap 0x%llx",
2698 		    i, dmap));
2699 		nxge_dma_free_rx_data_buf(dmap++);
2700 	}
2701 
2702 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_buf_dma"));
2703 }
2704 
2705 /*ARGSUSED*/
2706 static nxge_status_t
2707 nxge_alloc_rx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2708     p_nxge_dma_common_t *dmap, size_t size)
2709 {
2710 	p_nxge_dma_common_t 	rx_dmap;
2711 	nxge_status_t		status = NXGE_OK;
2712 
2713 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_cntl_dma"));
2714 
2715 	rx_dmap = (p_nxge_dma_common_t)
2716 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2717 
2718 	rx_dmap->contig_alloc_type = B_FALSE;
2719 	rx_dmap->kmem_alloc_type = B_FALSE;
2720 
2721 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2722 	    &nxge_desc_dma_attr,
2723 	    size,
2724 	    &nxge_dev_desc_dma_acc_attr,
2725 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2726 	    rx_dmap);
2727 	if (status != NXGE_OK) {
2728 		goto nxge_alloc_rx_cntl_dma_fail1;
2729 	}
2730 
2731 	*dmap = rx_dmap;
2732 	goto nxge_alloc_rx_cntl_dma_exit;
2733 
2734 nxge_alloc_rx_cntl_dma_fail1:
2735 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t));
2736 
2737 nxge_alloc_rx_cntl_dma_exit:
2738 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2739 	    "<== nxge_alloc_rx_cntl_dma status 0x%08x", status));
2740 
2741 	return (status);
2742 }
2743 
2744 /*ARGSUSED*/
2745 static void
2746 nxge_free_rx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2747 {
2748 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_rx_cntl_dma"));
2749 
2750 	if (dmap == 0)
2751 		return;
2752 
2753 	nxge_dma_mem_free(dmap);
2754 
2755 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_rx_cntl_dma"));
2756 }
2757 
2758 typedef struct {
2759 	size_t	tx_size;
2760 	size_t	cr_size;
2761 	size_t	threshhold;
2762 } nxge_tdc_sizes_t;
2763 
2764 static
2765 nxge_status_t
2766 nxge_tdc_sizes(
2767 	nxge_t *nxgep,
2768 	nxge_tdc_sizes_t *sizes)
2769 {
2770 	uint32_t threshhold;	/* The bcopy() threshhold */
2771 	size_t tx_size;		/* Transmit buffer size */
2772 	size_t cr_size;		/* Completion ring size */
2773 
2774 	/*
2775 	 * Assume that each DMA channel will be configured with the
2776 	 * default transmit buffer size for copying transmit data.
2777 	 * (If a packet is bigger than this, it will not be copied.)
2778 	 */
2779 	if (nxgep->niu_type == N2_NIU) {
2780 		threshhold = TX_BCOPY_SIZE;
2781 	} else {
2782 		threshhold = nxge_bcopy_thresh;
2783 	}
2784 	tx_size = nxge_tx_ring_size * threshhold;
2785 
2786 	cr_size = nxge_tx_ring_size * sizeof (tx_desc_t);
2787 	cr_size += sizeof (txdma_mailbox_t);
2788 
2789 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2790 	if (nxgep->niu_type == N2_NIU) {
2791 		if (!ISP2(tx_size)) {
2792 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2793 			    "==> nxge_tdc_sizes: Tx size"
2794 			    " must be power of 2"));
2795 			return (NXGE_ERROR);
2796 		}
2797 
2798 		if (tx_size > (1 << 22)) {
2799 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2800 			    "==> nxge_tdc_sizes: Tx size"
2801 			    " limited to 4M"));
2802 			return (NXGE_ERROR);
2803 		}
2804 
2805 		if (cr_size < 0x2000)
2806 			cr_size = 0x2000;
2807 	}
2808 #endif
2809 
2810 	sizes->threshhold = threshhold;
2811 	sizes->tx_size = tx_size;
2812 	sizes->cr_size = cr_size;
2813 
2814 	return (NXGE_OK);
2815 }
2816 /*
2817  * nxge_alloc_txb
2818  *
2819  *	Allocate buffers for an TDC.
2820  *
2821  * Arguments:
2822  * 	nxgep
2823  * 	channel	The channel to map into our kernel space.
2824  *
2825  * Notes:
2826  *
2827  * NPI function calls:
2828  *
2829  * NXGE function calls:
2830  *
2831  * Registers accessed:
2832  *
2833  * Context:
2834  *
2835  * Taking apart:
2836  *
2837  * Open questions:
2838  *
2839  */
2840 nxge_status_t
2841 nxge_alloc_txb(
2842 	p_nxge_t nxgep,
2843 	int channel)
2844 {
2845 	nxge_dma_common_t	**dma_buf_p;
2846 	nxge_dma_common_t	**dma_cntl_p;
2847 	uint32_t 		*num_chunks;
2848 	nxge_status_t		status = NXGE_OK;
2849 
2850 	nxge_tdc_sizes_t	sizes;
2851 
2852 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tbb"));
2853 
2854 	if (nxge_tdc_sizes(nxgep, &sizes) != NXGE_OK)
2855 		return (NXGE_ERROR);
2856 
2857 	/*
2858 	 * Allocate memory for transmit buffers and descriptor rings.
2859 	 * Replace these allocation functions with the interface functions
2860 	 * provided by the partition manager Real Soon Now.
2861 	 */
2862 	dma_buf_p = &nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2863 	num_chunks = &nxgep->tx_buf_pool_p->num_chunks[channel];
2864 
2865 	dma_cntl_p = &nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2866 
2867 	/*
2868 	 * Allocate memory for transmit buffers and descriptor rings.
2869 	 * Replace allocation functions with interface functions provided
2870 	 * by the partition manager when it is available.
2871 	 *
2872 	 * Allocate memory for the transmit buffer pool.
2873 	 */
2874 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2875 	    "sizes: tx: %ld, cr:%ld, th:%ld",
2876 	    sizes.tx_size, sizes.cr_size, sizes.threshhold));
2877 
2878 	*num_chunks = 0;
2879 	status = nxge_alloc_tx_buf_dma(nxgep, channel, dma_buf_p,
2880 	    sizes.tx_size, sizes.threshhold, num_chunks);
2881 	if (status != NXGE_OK) {
2882 		cmn_err(CE_NOTE, "nxge_alloc_tx_buf_dma failed!");
2883 		return (status);
2884 	}
2885 
2886 	/*
2887 	 * Allocate memory for descriptor rings and mailbox.
2888 	 */
2889 	status = nxge_alloc_tx_cntl_dma(nxgep, channel, dma_cntl_p,
2890 	    sizes.cr_size);
2891 	if (status != NXGE_OK) {
2892 		nxge_free_tx_buf_dma(nxgep, *dma_buf_p, *num_chunks);
2893 		cmn_err(CE_NOTE, "nxge_alloc_tx_cntl_dma failed!");
2894 		return (status);
2895 	}
2896 
2897 	return (NXGE_OK);
2898 }
2899 
2900 void
2901 nxge_free_txb(
2902 	p_nxge_t nxgep,
2903 	int channel)
2904 {
2905 	nxge_dma_common_t	*data;
2906 	nxge_dma_common_t	*control;
2907 	uint32_t 		num_chunks;
2908 
2909 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_txb"));
2910 
2911 	data = nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2912 	num_chunks = nxgep->tx_buf_pool_p->num_chunks[channel];
2913 	nxge_free_tx_buf_dma(nxgep, data, num_chunks);
2914 
2915 	nxgep->tx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2916 	nxgep->tx_buf_pool_p->num_chunks[channel] = 0;
2917 
2918 	control = nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2919 	nxge_free_tx_cntl_dma(nxgep, control);
2920 
2921 	nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2922 
2923 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2924 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2925 
2926 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_txb"));
2927 }
2928 
2929 /*
2930  * nxge_alloc_tx_mem_pool
2931  *
2932  *	This function allocates all of the per-port TDC control data structures.
2933  *	The per-channel (TDC) data structures are allocated when needed.
2934  *
2935  * Arguments:
2936  * 	nxgep
2937  *
2938  * Notes:
2939  *
2940  * Context:
2941  *	Any domain
2942  */
2943 nxge_status_t
2944 nxge_alloc_tx_mem_pool(p_nxge_t nxgep)
2945 {
2946 	nxge_hw_pt_cfg_t	*p_cfgp;
2947 	nxge_dma_pool_t		*dma_poolp;
2948 	nxge_dma_common_t	**dma_buf_p;
2949 	nxge_dma_pool_t		*dma_cntl_poolp;
2950 	nxge_dma_common_t	**dma_cntl_p;
2951 	uint32_t		*num_chunks; /* per dma */
2952 	int			tdc_max;
2953 
2954 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool"));
2955 
2956 	p_cfgp = &nxgep->pt_config.hw_config;
2957 	tdc_max = NXGE_MAX_TDCS;
2958 
2959 	/*
2960 	 * Allocate memory for each transmit DMA channel.
2961 	 */
2962 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2963 	    KM_SLEEP);
2964 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2965 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2966 
2967 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2968 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2969 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2970 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2971 
2972 	if (nxge_tx_ring_size > TDC_DEFAULT_MAX) {
2973 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2974 		    "nxge_alloc_tx_mem_pool: TDC too high %d, "
2975 		    "set to default %d",
2976 		    nxge_tx_ring_size, TDC_DEFAULT_MAX));
2977 		nxge_tx_ring_size = TDC_DEFAULT_MAX;
2978 	}
2979 
2980 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2981 	/*
2982 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2983 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2984 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2985 	 * function). The transmit ring is limited to 8K (includes the
2986 	 * mailbox).
2987 	 */
2988 	if (nxgep->niu_type == N2_NIU) {
2989 		if ((nxge_tx_ring_size > NXGE_NIU_CONTIG_TX_MAX) ||
2990 		    (!ISP2(nxge_tx_ring_size))) {
2991 			nxge_tx_ring_size = NXGE_NIU_CONTIG_TX_MAX;
2992 		}
2993 	}
2994 #endif
2995 
2996 	nxgep->nxge_port_tx_ring_size = nxge_tx_ring_size;
2997 
2998 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2999 	    sizeof (uint32_t) * tdc_max, KM_SLEEP);
3000 
3001 	dma_poolp->ndmas = p_cfgp->tdc.owned;
3002 	dma_poolp->num_chunks = num_chunks;
3003 	dma_poolp->dma_buf_pool_p = dma_buf_p;
3004 	nxgep->tx_buf_pool_p = dma_poolp;
3005 
3006 	dma_poolp->buf_allocated = B_TRUE;
3007 
3008 	dma_cntl_poolp->ndmas = p_cfgp->tdc.owned;
3009 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
3010 	nxgep->tx_cntl_pool_p = dma_cntl_poolp;
3011 
3012 	dma_cntl_poolp->buf_allocated = B_TRUE;
3013 
3014 	nxgep->tx_rings =
3015 	    KMEM_ZALLOC(sizeof (tx_rings_t), KM_SLEEP);
3016 	nxgep->tx_rings->rings =
3017 	    KMEM_ZALLOC(sizeof (p_tx_ring_t) * tdc_max, KM_SLEEP);
3018 	nxgep->tx_mbox_areas_p =
3019 	    KMEM_ZALLOC(sizeof (tx_mbox_areas_t), KM_SLEEP);
3020 	nxgep->tx_mbox_areas_p->txmbox_areas_p =
3021 	    KMEM_ZALLOC(sizeof (p_tx_mbox_t) * tdc_max, KM_SLEEP);
3022 
3023 	nxgep->tx_rings->ndmas = p_cfgp->tdc.owned;
3024 
3025 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
3026 	    "==> nxge_alloc_tx_mem_pool: ndmas %d poolp->ndmas %d",
3027 	    tdc_max, dma_poolp->ndmas));
3028 
3029 	return (NXGE_OK);
3030 }
3031 
3032 nxge_status_t
3033 nxge_alloc_tx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
3034     p_nxge_dma_common_t *dmap, size_t alloc_size,
3035     size_t block_size, uint32_t *num_chunks)
3036 {
3037 	p_nxge_dma_common_t 	tx_dmap;
3038 	nxge_status_t		status = NXGE_OK;
3039 	size_t			total_alloc_size;
3040 	size_t			allocated = 0;
3041 	int			i, size_index, array_size;
3042 
3043 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_buf_dma"));
3044 
3045 	tx_dmap = (p_nxge_dma_common_t)
3046 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
3047 	    KM_SLEEP);
3048 
3049 	total_alloc_size = alloc_size;
3050 	i = 0;
3051 	size_index = 0;
3052 	array_size =  sizeof (alloc_sizes) /  sizeof (size_t);
3053 	while ((size_index < array_size) &&
3054 	    (alloc_sizes[size_index] < alloc_size))
3055 		size_index++;
3056 	if (size_index >= array_size) {
3057 		size_index = array_size - 1;
3058 	}
3059 
3060 	while ((allocated < total_alloc_size) &&
3061 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
3062 
3063 		tx_dmap[i].dma_chunk_index = i;
3064 		tx_dmap[i].block_size = block_size;
3065 		tx_dmap[i].alength = alloc_sizes[size_index];
3066 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
3067 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
3068 		tx_dmap[i].dma_channel = dma_channel;
3069 		tx_dmap[i].contig_alloc_type = B_FALSE;
3070 		tx_dmap[i].kmem_alloc_type = B_FALSE;
3071 
3072 		/*
3073 		 * N2/NIU: data buffers must be contiguous as the driver
3074 		 *	   needs to call Hypervisor api to set up
3075 		 *	   logical pages.
3076 		 */
3077 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
3078 			tx_dmap[i].contig_alloc_type = B_TRUE;
3079 		}
3080 
3081 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3082 		    &nxge_tx_dma_attr,
3083 		    tx_dmap[i].alength,
3084 		    &nxge_dev_buf_dma_acc_attr,
3085 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
3086 		    (p_nxge_dma_common_t)(&tx_dmap[i]));
3087 		if (status != NXGE_OK) {
3088 			size_index--;
3089 		} else {
3090 			i++;
3091 			allocated += alloc_sizes[size_index];
3092 		}
3093 	}
3094 
3095 	if (allocated < total_alloc_size) {
3096 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3097 		    "==> nxge_alloc_tx_buf_dma: not enough channel %d: "
3098 		    "allocated 0x%x requested 0x%x",
3099 		    dma_channel,
3100 		    allocated, total_alloc_size));
3101 		status = NXGE_ERROR;
3102 		goto nxge_alloc_tx_mem_fail1;
3103 	}
3104 
3105 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3106 	    "==> nxge_alloc_tx_buf_dma: Allocated for channel %d: "
3107 	    "allocated 0x%x requested 0x%x",
3108 	    dma_channel,
3109 	    allocated, total_alloc_size));
3110 
3111 	*num_chunks = i;
3112 	*dmap = tx_dmap;
3113 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3114 	    "==> nxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
3115 	    *dmap, i));
3116 	goto nxge_alloc_tx_mem_exit;
3117 
3118 nxge_alloc_tx_mem_fail1:
3119 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
3120 
3121 nxge_alloc_tx_mem_exit:
3122 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3123 	    "<== nxge_alloc_tx_buf_dma status 0x%08x", status));
3124 
3125 	return (status);
3126 }
3127 
3128 /*ARGSUSED*/
3129 static void
3130 nxge_free_tx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
3131     uint32_t num_chunks)
3132 {
3133 	int		i;
3134 
3135 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_tx_buf_dma"));
3136 
3137 	if (dmap == 0)
3138 		return;
3139 
3140 	for (i = 0; i < num_chunks; i++) {
3141 		nxge_dma_mem_free(dmap++);
3142 	}
3143 
3144 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_tx_buf_dma"));
3145 }
3146 
3147 /*ARGSUSED*/
3148 nxge_status_t
3149 nxge_alloc_tx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
3150     p_nxge_dma_common_t *dmap, size_t size)
3151 {
3152 	p_nxge_dma_common_t 	tx_dmap;
3153 	nxge_status_t		status = NXGE_OK;
3154 
3155 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_cntl_dma"));
3156 	tx_dmap = (p_nxge_dma_common_t)
3157 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
3158 
3159 	tx_dmap->contig_alloc_type = B_FALSE;
3160 	tx_dmap->kmem_alloc_type = B_FALSE;
3161 
3162 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3163 	    &nxge_desc_dma_attr,
3164 	    size,
3165 	    &nxge_dev_desc_dma_acc_attr,
3166 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
3167 	    tx_dmap);
3168 	if (status != NXGE_OK) {
3169 		goto nxge_alloc_tx_cntl_dma_fail1;
3170 	}
3171 
3172 	*dmap = tx_dmap;
3173 	goto nxge_alloc_tx_cntl_dma_exit;
3174 
3175 nxge_alloc_tx_cntl_dma_fail1:
3176 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t));
3177 
3178 nxge_alloc_tx_cntl_dma_exit:
3179 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3180 	    "<== nxge_alloc_tx_cntl_dma status 0x%08x", status));
3181 
3182 	return (status);
3183 }
3184 
3185 /*ARGSUSED*/
3186 static void
3187 nxge_free_tx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
3188 {
3189 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_tx_cntl_dma"));
3190 
3191 	if (dmap == 0)
3192 		return;
3193 
3194 	nxge_dma_mem_free(dmap);
3195 
3196 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_tx_cntl_dma"));
3197 }
3198 
3199 /*
3200  * nxge_free_tx_mem_pool
3201  *
3202  *	This function frees all of the per-port TDC control data structures.
3203  *	The per-channel (TDC) data structures are freed when the channel
3204  *	is stopped.
3205  *
3206  * Arguments:
3207  * 	nxgep
3208  *
3209  * Notes:
3210  *
3211  * Context:
3212  *	Any domain
3213  */
3214 static void
3215 nxge_free_tx_mem_pool(p_nxge_t nxgep)
3216 {
3217 	int tdc_max = NXGE_MAX_TDCS;
3218 
3219 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_tx_mem_pool"));
3220 
3221 	if (!nxgep->tx_buf_pool_p || !nxgep->tx_buf_pool_p->buf_allocated) {
3222 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3223 		    "<== nxge_free_tx_mem_pool "
3224 		    "(null tx buf pool or buf not allocated"));
3225 		return;
3226 	}
3227 	if (!nxgep->tx_cntl_pool_p || !nxgep->tx_cntl_pool_p->buf_allocated) {
3228 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3229 		    "<== nxge_free_tx_mem_pool "
3230 		    "(null tx cntl buf pool or cntl buf not allocated"));
3231 		return;
3232 	}
3233 
3234 	/* 1. Free the mailboxes. */
3235 	KMEM_FREE(nxgep->tx_mbox_areas_p->txmbox_areas_p,
3236 	    sizeof (p_tx_mbox_t) * tdc_max);
3237 	KMEM_FREE(nxgep->tx_mbox_areas_p, sizeof (tx_mbox_areas_t));
3238 
3239 	nxgep->tx_mbox_areas_p = 0;
3240 
3241 	/* 2. Free the transmit ring arrays. */
3242 	KMEM_FREE(nxgep->tx_rings->rings,
3243 	    sizeof (p_tx_ring_t) * tdc_max);
3244 	KMEM_FREE(nxgep->tx_rings, sizeof (tx_rings_t));
3245 
3246 	nxgep->tx_rings = 0;
3247 
3248 	/* 3. Free the completion ring data structures. */
3249 	KMEM_FREE(nxgep->tx_cntl_pool_p->dma_buf_pool_p,
3250 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3251 	KMEM_FREE(nxgep->tx_cntl_pool_p, sizeof (nxge_dma_pool_t));
3252 
3253 	nxgep->tx_cntl_pool_p = 0;
3254 
3255 	/* 4. Free the data ring data structures. */
3256 	KMEM_FREE(nxgep->tx_buf_pool_p->num_chunks,
3257 	    sizeof (uint32_t) * tdc_max);
3258 	KMEM_FREE(nxgep->tx_buf_pool_p->dma_buf_pool_p,
3259 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3260 	KMEM_FREE(nxgep->tx_buf_pool_p, sizeof (nxge_dma_pool_t));
3261 
3262 	nxgep->tx_buf_pool_p = 0;
3263 
3264 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_tx_mem_pool"));
3265 }
3266 
3267 /*ARGSUSED*/
3268 static nxge_status_t
3269 nxge_dma_mem_alloc(p_nxge_t nxgep, dma_method_t method,
3270 	struct ddi_dma_attr *dma_attrp,
3271 	size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
3272 	p_nxge_dma_common_t dma_p)
3273 {
3274 	caddr_t 		kaddrp;
3275 	int			ddi_status = DDI_SUCCESS;
3276 	boolean_t		contig_alloc_type;
3277 	boolean_t		kmem_alloc_type;
3278 
3279 	contig_alloc_type = dma_p->contig_alloc_type;
3280 
3281 	if (contig_alloc_type && (nxgep->niu_type != N2_NIU)) {
3282 		/*
3283 		 * contig_alloc_type for contiguous memory only allowed
3284 		 * for N2/NIU.
3285 		 */
3286 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3287 		    "nxge_dma_mem_alloc: alloc type not allowed (%d)",
3288 		    dma_p->contig_alloc_type));
3289 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3290 	}
3291 
3292 	dma_p->dma_handle = NULL;
3293 	dma_p->acc_handle = NULL;
3294 	dma_p->kaddrp = dma_p->last_kaddrp = NULL;
3295 	dma_p->first_ioaddr_pp = dma_p->last_ioaddr_pp = NULL;
3296 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, dma_attrp,
3297 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
3298 	if (ddi_status != DDI_SUCCESS) {
3299 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3300 		    "nxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
3301 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3302 	}
3303 
3304 	kmem_alloc_type = dma_p->kmem_alloc_type;
3305 
3306 	switch (contig_alloc_type) {
3307 	case B_FALSE:
3308 		switch (kmem_alloc_type) {
3309 		case B_FALSE:
3310 			ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle,
3311 			    length,
3312 			    acc_attr_p,
3313 			    xfer_flags,
3314 			    DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
3315 			    &dma_p->acc_handle);
3316 			if (ddi_status != DDI_SUCCESS) {
3317 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3318 				    "nxge_dma_mem_alloc: "
3319 				    "ddi_dma_mem_alloc failed"));
3320 				ddi_dma_free_handle(&dma_p->dma_handle);
3321 				dma_p->dma_handle = NULL;
3322 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3323 			}
3324 			if (dma_p->alength < length) {
3325 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3326 				    "nxge_dma_mem_alloc:di_dma_mem_alloc "
3327 				    "< length."));
3328 				ddi_dma_mem_free(&dma_p->acc_handle);
3329 				ddi_dma_free_handle(&dma_p->dma_handle);
3330 				dma_p->acc_handle = NULL;
3331 				dma_p->dma_handle = NULL;
3332 				return (NXGE_ERROR);
3333 			}
3334 
3335 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3336 			    NULL,
3337 			    kaddrp, dma_p->alength, xfer_flags,
3338 			    DDI_DMA_DONTWAIT,
3339 			    0, &dma_p->dma_cookie, &dma_p->ncookies);
3340 			if (ddi_status != DDI_DMA_MAPPED) {
3341 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3342 				    "nxge_dma_mem_alloc: ddi_dma_addr_bind "
3343 				    "failed "
3344 				    "(staus 0x%x ncookies %d.)", ddi_status,
3345 				    dma_p->ncookies));
3346 				if (dma_p->acc_handle) {
3347 					ddi_dma_mem_free(&dma_p->acc_handle);
3348 					dma_p->acc_handle = NULL;
3349 				}
3350 				ddi_dma_free_handle(&dma_p->dma_handle);
3351 				dma_p->dma_handle = NULL;
3352 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3353 			}
3354 
3355 			if (dma_p->ncookies != 1) {
3356 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3357 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3358 				    "> 1 cookie"
3359 				    "(staus 0x%x ncookies %d.)", ddi_status,
3360 				    dma_p->ncookies));
3361 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3362 				if (dma_p->acc_handle) {
3363 					ddi_dma_mem_free(&dma_p->acc_handle);
3364 					dma_p->acc_handle = NULL;
3365 				}
3366 				ddi_dma_free_handle(&dma_p->dma_handle);
3367 				dma_p->dma_handle = NULL;
3368 				dma_p->acc_handle = NULL;
3369 				return (NXGE_ERROR);
3370 			}
3371 			break;
3372 
3373 		case B_TRUE:
3374 			kaddrp = KMEM_ALLOC(length, KM_NOSLEEP);
3375 			if (kaddrp == NULL) {
3376 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3377 				    "nxge_dma_mem_alloc:ddi_dma_mem_alloc "
3378 				    "kmem alloc failed"));
3379 				return (NXGE_ERROR);
3380 			}
3381 
3382 			dma_p->alength = length;
3383 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3384 			    NULL, kaddrp, dma_p->alength, xfer_flags,
3385 			    DDI_DMA_DONTWAIT, 0,
3386 			    &dma_p->dma_cookie, &dma_p->ncookies);
3387 			if (ddi_status != DDI_DMA_MAPPED) {
3388 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3389 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind: "
3390 				    "(kmem_alloc) failed kaddrp $%p length %d "
3391 				    "(staus 0x%x (%d) ncookies %d.)",
3392 				    kaddrp, length,
3393 				    ddi_status, ddi_status, dma_p->ncookies));
3394 				KMEM_FREE(kaddrp, length);
3395 				dma_p->acc_handle = NULL;
3396 				ddi_dma_free_handle(&dma_p->dma_handle);
3397 				dma_p->dma_handle = NULL;
3398 				dma_p->kaddrp = NULL;
3399 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3400 			}
3401 
3402 			if (dma_p->ncookies != 1) {
3403 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3404 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3405 				    "(kmem_alloc) > 1 cookie"
3406 				    "(staus 0x%x ncookies %d.)", ddi_status,
3407 				    dma_p->ncookies));
3408 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3409 				KMEM_FREE(kaddrp, length);
3410 				ddi_dma_free_handle(&dma_p->dma_handle);
3411 				dma_p->dma_handle = NULL;
3412 				dma_p->acc_handle = NULL;
3413 				dma_p->kaddrp = NULL;
3414 				return (NXGE_ERROR);
3415 			}
3416 
3417 			dma_p->kaddrp = kaddrp;
3418 
3419 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
3420 			    "nxge_dma_mem_alloc: kmem_alloc dmap $%p "
3421 			    "kaddr $%p alength %d",
3422 			    dma_p,
3423 			    kaddrp,
3424 			    dma_p->alength));
3425 			break;
3426 		}
3427 		break;
3428 
3429 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3430 	case B_TRUE:
3431 		kaddrp = (caddr_t)contig_mem_alloc(length);
3432 		if (kaddrp == NULL) {
3433 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3434 			    "nxge_dma_mem_alloc:contig_mem_alloc failed."));
3435 			ddi_dma_free_handle(&dma_p->dma_handle);
3436 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3437 		}
3438 
3439 		dma_p->alength = length;
3440 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
3441 		    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
3442 		    &dma_p->dma_cookie, &dma_p->ncookies);
3443 		if (ddi_status != DDI_DMA_MAPPED) {
3444 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3445 			    "nxge_dma_mem_alloc:di_dma_addr_bind failed "
3446 			    "(status 0x%x ncookies %d.)", ddi_status,
3447 			    dma_p->ncookies));
3448 
3449 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3450 			    "==> nxge_dma_mem_alloc: (not mapped)"
3451 			    "length %lu (0x%x) "
3452 			    "free contig kaddrp $%p "
3453 			    "va_to_pa $%p",
3454 			    length, length,
3455 			    kaddrp,
3456 			    va_to_pa(kaddrp)));
3457 
3458 
3459 			contig_mem_free((void *)kaddrp, length);
3460 			ddi_dma_free_handle(&dma_p->dma_handle);
3461 
3462 			dma_p->dma_handle = NULL;
3463 			dma_p->acc_handle = NULL;
3464 			dma_p->alength = NULL;
3465 			dma_p->kaddrp = NULL;
3466 
3467 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3468 		}
3469 
3470 		if (dma_p->ncookies != 1 ||
3471 		    (dma_p->dma_cookie.dmac_laddress == NULL)) {
3472 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3473 			    "nxge_dma_mem_alloc:di_dma_addr_bind > 1 "
3474 			    "cookie or "
3475 			    "dmac_laddress is NULL $%p size %d "
3476 			    " (status 0x%x ncookies %d.)",
3477 			    ddi_status,
3478 			    dma_p->dma_cookie.dmac_laddress,
3479 			    dma_p->dma_cookie.dmac_size,
3480 			    dma_p->ncookies));
3481 
3482 			contig_mem_free((void *)kaddrp, length);
3483 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3484 			ddi_dma_free_handle(&dma_p->dma_handle);
3485 
3486 			dma_p->alength = 0;
3487 			dma_p->dma_handle = NULL;
3488 			dma_p->acc_handle = NULL;
3489 			dma_p->kaddrp = NULL;
3490 
3491 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3492 		}
3493 		break;
3494 
3495 #else
3496 	case B_TRUE:
3497 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3498 		    "nxge_dma_mem_alloc: invalid alloc type for !sun4v"));
3499 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3500 #endif
3501 	}
3502 
3503 	dma_p->kaddrp = kaddrp;
3504 	dma_p->last_kaddrp = (unsigned char *)kaddrp +
3505 	    dma_p->alength - RXBUF_64B_ALIGNED;
3506 #if defined(__i386)
3507 	dma_p->ioaddr_pp =
3508 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
3509 #else
3510 	dma_p->ioaddr_pp = (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3511 #endif
3512 	dma_p->last_ioaddr_pp =
3513 #if defined(__i386)
3514 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress +
3515 #else
3516 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress +
3517 #endif
3518 	    dma_p->alength - RXBUF_64B_ALIGNED;
3519 
3520 	NPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
3521 
3522 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3523 	dma_p->orig_ioaddr_pp =
3524 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3525 	dma_p->orig_alength = length;
3526 	dma_p->orig_kaddrp = kaddrp;
3527 	dma_p->orig_vatopa = (uint64_t)va_to_pa(kaddrp);
3528 #endif
3529 
3530 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_dma_mem_alloc: "
3531 	    "dma buffer allocated: dma_p $%p "
3532 	    "return dmac_ladress from cookie $%p cookie dmac_size %d "
3533 	    "dma_p->ioaddr_p $%p "
3534 	    "dma_p->orig_ioaddr_p $%p "
3535 	    "orig_vatopa $%p "
3536 	    "alength %d (0x%x) "
3537 	    "kaddrp $%p "
3538 	    "length %d (0x%x)",
3539 	    dma_p,
3540 	    dma_p->dma_cookie.dmac_laddress, dma_p->dma_cookie.dmac_size,
3541 	    dma_p->ioaddr_pp,
3542 	    dma_p->orig_ioaddr_pp,
3543 	    dma_p->orig_vatopa,
3544 	    dma_p->alength, dma_p->alength,
3545 	    kaddrp,
3546 	    length, length));
3547 
3548 	return (NXGE_OK);
3549 }
3550 
3551 static void
3552 nxge_dma_mem_free(p_nxge_dma_common_t dma_p)
3553 {
3554 	if (dma_p->dma_handle != NULL) {
3555 		if (dma_p->ncookies) {
3556 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3557 			dma_p->ncookies = 0;
3558 		}
3559 		ddi_dma_free_handle(&dma_p->dma_handle);
3560 		dma_p->dma_handle = NULL;
3561 	}
3562 
3563 	if (dma_p->acc_handle != NULL) {
3564 		ddi_dma_mem_free(&dma_p->acc_handle);
3565 		dma_p->acc_handle = NULL;
3566 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3567 	}
3568 
3569 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3570 	if (dma_p->contig_alloc_type &&
3571 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3572 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_mem_free: "
3573 		    "kaddrp $%p (orig_kaddrp $%p)"
3574 		    "mem type %d ",
3575 		    "orig_alength %d "
3576 		    "alength 0x%x (%d)",
3577 		    dma_p->kaddrp,
3578 		    dma_p->orig_kaddrp,
3579 		    dma_p->contig_alloc_type,
3580 		    dma_p->orig_alength,
3581 		    dma_p->alength, dma_p->alength));
3582 
3583 		contig_mem_free(dma_p->orig_kaddrp, dma_p->orig_alength);
3584 		dma_p->orig_alength = NULL;
3585 		dma_p->orig_kaddrp = NULL;
3586 		dma_p->contig_alloc_type = B_FALSE;
3587 	}
3588 #endif
3589 	dma_p->kaddrp = NULL;
3590 	dma_p->alength = NULL;
3591 }
3592 
3593 static void
3594 nxge_dma_free_rx_data_buf(p_nxge_dma_common_t dma_p)
3595 {
3596 	uint64_t kaddr;
3597 	uint32_t buf_size;
3598 
3599 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "==> nxge_dma_free_rx_data_buf"));
3600 
3601 	if (dma_p->dma_handle != NULL) {
3602 		if (dma_p->ncookies) {
3603 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3604 			dma_p->ncookies = 0;
3605 		}
3606 		ddi_dma_free_handle(&dma_p->dma_handle);
3607 		dma_p->dma_handle = NULL;
3608 	}
3609 
3610 	if (dma_p->acc_handle != NULL) {
3611 		ddi_dma_mem_free(&dma_p->acc_handle);
3612 		dma_p->acc_handle = NULL;
3613 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3614 	}
3615 
3616 	NXGE_DEBUG_MSG((NULL, DMA_CTL,
3617 	    "==> nxge_dma_free_rx_data_buf: dmap $%p buf_alloc_state %d",
3618 	    dma_p,
3619 	    dma_p->buf_alloc_state));
3620 
3621 	if (!(dma_p->buf_alloc_state & BUF_ALLOCATED_WAIT_FREE)) {
3622 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3623 		    "<== nxge_dma_free_rx_data_buf: "
3624 		    "outstanding data buffers"));
3625 		return;
3626 	}
3627 
3628 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3629 	if (dma_p->contig_alloc_type &&
3630 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3631 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_free_rx_data_buf: "
3632 		    "kaddrp $%p (orig_kaddrp $%p)"
3633 		    "mem type %d ",
3634 		    "orig_alength %d "
3635 		    "alength 0x%x (%d)",
3636 		    dma_p->kaddrp,
3637 		    dma_p->orig_kaddrp,
3638 		    dma_p->contig_alloc_type,
3639 		    dma_p->orig_alength,
3640 		    dma_p->alength, dma_p->alength));
3641 
3642 		kaddr = (uint64_t)dma_p->orig_kaddrp;
3643 		buf_size = dma_p->orig_alength;
3644 		nxge_free_buf(CONTIG_MEM_ALLOC, kaddr, buf_size);
3645 		dma_p->orig_alength = NULL;
3646 		dma_p->orig_kaddrp = NULL;
3647 		dma_p->contig_alloc_type = B_FALSE;
3648 		dma_p->kaddrp = NULL;
3649 		dma_p->alength = NULL;
3650 		return;
3651 	}
3652 #endif
3653 
3654 	if (dma_p->kmem_alloc_type) {
3655 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3656 		    "nxge_dma_free_rx_data_buf: free kmem "
3657 		    "kaddrp $%p (orig_kaddrp $%p)"
3658 		    "alloc type %d "
3659 		    "orig_alength %d "
3660 		    "alength 0x%x (%d)",
3661 		    dma_p->kaddrp,
3662 		    dma_p->orig_kaddrp,
3663 		    dma_p->kmem_alloc_type,
3664 		    dma_p->orig_alength,
3665 		    dma_p->alength, dma_p->alength));
3666 #if defined(__i386)
3667 		kaddr = (uint64_t)(uint32_t)dma_p->kaddrp;
3668 #else
3669 		kaddr = (uint64_t)dma_p->kaddrp;
3670 #endif
3671 		buf_size = dma_p->orig_alength;
3672 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3673 		    "nxge_dma_free_rx_data_buf: free dmap $%p "
3674 		    "kaddr $%p buf_size %d",
3675 		    dma_p,
3676 		    kaddr, buf_size));
3677 		nxge_free_buf(KMEM_ALLOC, kaddr, buf_size);
3678 		dma_p->alength = 0;
3679 		dma_p->orig_alength = 0;
3680 		dma_p->kaddrp = NULL;
3681 		dma_p->kmem_alloc_type = B_FALSE;
3682 	}
3683 
3684 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "<== nxge_dma_free_rx_data_buf"));
3685 }
3686 
3687 /*
3688  *	nxge_m_start() -- start transmitting and receiving.
3689  *
3690  *	This function is called by the MAC layer when the first
3691  *	stream is open to prepare the hardware ready for sending
3692  *	and transmitting packets.
3693  */
3694 static int
3695 nxge_m_start(void *arg)
3696 {
3697 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3698 
3699 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_start"));
3700 
3701 	/*
3702 	 * Are we already started?
3703 	 */
3704 	if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
3705 		return (0);
3706 	}
3707 
3708 	if (nxge_peu_reset_enable && !nxgep->nxge_link_poll_timerid) {
3709 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
3710 	}
3711 
3712 	/*
3713 	 * Make sure RX MAC is disabled while we initialize.
3714 	 */
3715 	if (!isLDOMguest(nxgep)) {
3716 		(void) nxge_rx_mac_disable(nxgep);
3717 	}
3718 
3719 	/*
3720 	 * Grab the global lock.
3721 	 */
3722 	MUTEX_ENTER(nxgep->genlock);
3723 
3724 	/*
3725 	 * Initialize the driver and hardware.
3726 	 */
3727 	if (nxge_init(nxgep) != NXGE_OK) {
3728 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3729 		    "<== nxge_m_start: initialization failed"));
3730 		MUTEX_EXIT(nxgep->genlock);
3731 		return (EIO);
3732 	}
3733 
3734 	/*
3735 	 * Start timer to check the system error and tx hangs
3736 	 */
3737 	if (!isLDOMguest(nxgep))
3738 		nxgep->nxge_timerid = nxge_start_timer(nxgep,
3739 		    nxge_check_hw_state, NXGE_CHECK_TIMER);
3740 #if defined(sun4v)
3741 	else
3742 		nxge_hio_start_timer(nxgep);
3743 #endif
3744 
3745 	nxgep->link_notify = B_TRUE;
3746 	nxgep->nxge_mac_state = NXGE_MAC_STARTED;
3747 
3748 	/*
3749 	 * Let the global lock go, since we are intialized.
3750 	 */
3751 	MUTEX_EXIT(nxgep->genlock);
3752 
3753 	/*
3754 	 * Let the MAC start receiving packets, now that
3755 	 * we are initialized.
3756 	 */
3757 	if (!isLDOMguest(nxgep)) {
3758 		if (nxge_rx_mac_enable(nxgep) != NXGE_OK) {
3759 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3760 			    "<== nxge_m_start: enable of RX mac failed"));
3761 			return (EIO);
3762 		}
3763 
3764 		/*
3765 		 * Enable hardware interrupts.
3766 		 */
3767 		nxge_intr_hw_enable(nxgep);
3768 	}
3769 #if defined(sun4v)
3770 	else {
3771 		/*
3772 		 * In guest domain we enable RDCs and their interrupts as
3773 		 * the last step.
3774 		 */
3775 		if (nxge_hio_rdc_enable(nxgep) != NXGE_OK) {
3776 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3777 			    "<== nxge_m_start: enable of RDCs failed"));
3778 			return (EIO);
3779 		}
3780 
3781 		if (nxge_hio_rdc_intr_arm(nxgep, B_TRUE) != NXGE_OK) {
3782 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3783 			    "<== nxge_m_start: intrs enable for RDCs failed"));
3784 			return (EIO);
3785 		}
3786 	}
3787 #endif
3788 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_start"));
3789 	return (0);
3790 }
3791 
3792 static boolean_t
3793 nxge_check_groups_stopped(p_nxge_t nxgep)
3794 {
3795 	int	i;
3796 
3797 	for (i = 0; i < NXGE_MAX_RDC_GROUPS; i++) {
3798 		if (nxgep->rx_hio_groups[i].started)
3799 			return (B_FALSE);
3800 	}
3801 
3802 	return (B_TRUE);
3803 }
3804 
3805 /*
3806  *	nxge_m_stop(): stop transmitting and receiving.
3807  */
3808 static void
3809 nxge_m_stop(void *arg)
3810 {
3811 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3812 	boolean_t	groups_stopped;
3813 
3814 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_stop"));
3815 
3816 	/*
3817 	 * Are the groups stopped?
3818 	 */
3819 	groups_stopped = nxge_check_groups_stopped(nxgep);
3820 	ASSERT(groups_stopped == B_TRUE);
3821 	if (!groups_stopped) {
3822 		cmn_err(CE_WARN, "nxge(%d): groups are not stopped!\n",
3823 		    nxgep->instance);
3824 		return;
3825 	}
3826 
3827 	if (!isLDOMguest(nxgep)) {
3828 		/*
3829 		 * Disable the RX mac.
3830 		 */
3831 		(void) nxge_rx_mac_disable(nxgep);
3832 
3833 		/*
3834 		 * Wait for the IPP to drain.
3835 		 */
3836 		(void) nxge_ipp_drain(nxgep);
3837 
3838 		/*
3839 		 * Disable hardware interrupts.
3840 		 */
3841 		nxge_intr_hw_disable(nxgep);
3842 	}
3843 #if defined(sun4v)
3844 	else {
3845 		(void) nxge_hio_rdc_intr_arm(nxgep, B_FALSE);
3846 	}
3847 #endif
3848 
3849 	/*
3850 	 * Grab the global lock.
3851 	 */
3852 	MUTEX_ENTER(nxgep->genlock);
3853 
3854 	nxgep->nxge_mac_state = NXGE_MAC_STOPPING;
3855 	if (nxgep->nxge_timerid) {
3856 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
3857 		nxgep->nxge_timerid = 0;
3858 	}
3859 
3860 	/*
3861 	 * Clean up.
3862 	 */
3863 	nxge_uninit(nxgep);
3864 
3865 	nxgep->nxge_mac_state = NXGE_MAC_STOPPED;
3866 
3867 	/*
3868 	 * Let go of the global lock.
3869 	 */
3870 	MUTEX_EXIT(nxgep->genlock);
3871 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_stop"));
3872 }
3873 
3874 static int
3875 nxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
3876 {
3877 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3878 	struct 		ether_addr addrp;
3879 
3880 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3881 	    "==> nxge_m_multicst: add %d", add));
3882 
3883 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
3884 	if (add) {
3885 		if (nxge_add_mcast_addr(nxgep, &addrp)) {
3886 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3887 			    "<== nxge_m_multicst: add multicast failed"));
3888 			return (EINVAL);
3889 		}
3890 	} else {
3891 		if (nxge_del_mcast_addr(nxgep, &addrp)) {
3892 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3893 			    "<== nxge_m_multicst: del multicast failed"));
3894 			return (EINVAL);
3895 		}
3896 	}
3897 
3898 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_multicst"));
3899 
3900 	return (0);
3901 }
3902 
3903 static int
3904 nxge_m_promisc(void *arg, boolean_t on)
3905 {
3906 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3907 
3908 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3909 	    "==> nxge_m_promisc: on %d", on));
3910 
3911 	if (nxge_set_promisc(nxgep, on)) {
3912 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3913 		    "<== nxge_m_promisc: set promisc failed"));
3914 		return (EINVAL);
3915 	}
3916 
3917 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3918 	    "<== nxge_m_promisc: on %d", on));
3919 
3920 	return (0);
3921 }
3922 
3923 static void
3924 nxge_m_ioctl(void *arg,  queue_t *wq, mblk_t *mp)
3925 {
3926 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3927 	struct 		iocblk *iocp;
3928 	boolean_t 	need_privilege;
3929 	int 		err;
3930 	int 		cmd;
3931 
3932 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl"));
3933 
3934 	iocp = (struct iocblk *)mp->b_rptr;
3935 	iocp->ioc_error = 0;
3936 	need_privilege = B_TRUE;
3937 	cmd = iocp->ioc_cmd;
3938 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl: cmd 0x%08x", cmd));
3939 	switch (cmd) {
3940 	default:
3941 		miocnak(wq, mp, 0, EINVAL);
3942 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl: invalid"));
3943 		return;
3944 
3945 	case LB_GET_INFO_SIZE:
3946 	case LB_GET_INFO:
3947 	case LB_GET_MODE:
3948 		need_privilege = B_FALSE;
3949 		break;
3950 	case LB_SET_MODE:
3951 		break;
3952 
3953 
3954 	case NXGE_GET_MII:
3955 	case NXGE_PUT_MII:
3956 	case NXGE_GET64:
3957 	case NXGE_PUT64:
3958 	case NXGE_GET_TX_RING_SZ:
3959 	case NXGE_GET_TX_DESC:
3960 	case NXGE_TX_SIDE_RESET:
3961 	case NXGE_RX_SIDE_RESET:
3962 	case NXGE_GLOBAL_RESET:
3963 	case NXGE_RESET_MAC:
3964 	case NXGE_TX_REGS_DUMP:
3965 	case NXGE_RX_REGS_DUMP:
3966 	case NXGE_INT_REGS_DUMP:
3967 	case NXGE_VIR_INT_REGS_DUMP:
3968 	case NXGE_PUT_TCAM:
3969 	case NXGE_GET_TCAM:
3970 	case NXGE_RTRACE:
3971 	case NXGE_RDUMP:
3972 
3973 		need_privilege = B_FALSE;
3974 		break;
3975 	case NXGE_INJECT_ERR:
3976 		cmn_err(CE_NOTE, "!nxge_m_ioctl: Inject error\n");
3977 		nxge_err_inject(nxgep, wq, mp);
3978 		break;
3979 	}
3980 
3981 	if (need_privilege) {
3982 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
3983 		if (err != 0) {
3984 			miocnak(wq, mp, 0, err);
3985 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3986 			    "<== nxge_m_ioctl: no priv"));
3987 			return;
3988 		}
3989 	}
3990 
3991 	switch (cmd) {
3992 
3993 	case LB_GET_MODE:
3994 	case LB_SET_MODE:
3995 	case LB_GET_INFO_SIZE:
3996 	case LB_GET_INFO:
3997 		nxge_loopback_ioctl(nxgep, wq, mp, iocp);
3998 		break;
3999 
4000 	case NXGE_GET_MII:
4001 	case NXGE_PUT_MII:
4002 	case NXGE_PUT_TCAM:
4003 	case NXGE_GET_TCAM:
4004 	case NXGE_GET64:
4005 	case NXGE_PUT64:
4006 	case NXGE_GET_TX_RING_SZ:
4007 	case NXGE_GET_TX_DESC:
4008 	case NXGE_TX_SIDE_RESET:
4009 	case NXGE_RX_SIDE_RESET:
4010 	case NXGE_GLOBAL_RESET:
4011 	case NXGE_RESET_MAC:
4012 	case NXGE_TX_REGS_DUMP:
4013 	case NXGE_RX_REGS_DUMP:
4014 	case NXGE_INT_REGS_DUMP:
4015 	case NXGE_VIR_INT_REGS_DUMP:
4016 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4017 		    "==> nxge_m_ioctl: cmd 0x%x", cmd));
4018 		nxge_hw_ioctl(nxgep, wq, mp, iocp);
4019 		break;
4020 	}
4021 
4022 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl"));
4023 }
4024 
4025 extern void nxge_rx_hw_blank(void *arg, time_t ticks, uint_t count);
4026 
4027 void
4028 nxge_mmac_kstat_update(p_nxge_t nxgep, int slot, boolean_t factory)
4029 {
4030 	p_nxge_mmac_stats_t mmac_stats;
4031 	int i;
4032 	nxge_mmac_t *mmac_info;
4033 
4034 	mmac_info = &nxgep->nxge_mmac_info;
4035 
4036 	mmac_stats = &nxgep->statsp->mmac_stats;
4037 	mmac_stats->mmac_max_cnt = mmac_info->num_mmac;
4038 	mmac_stats->mmac_avail_cnt = mmac_info->naddrfree;
4039 
4040 	for (i = 0; i < ETHERADDRL; i++) {
4041 		if (factory) {
4042 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
4043 			    = mmac_info->factory_mac_pool[slot][
4044 			    (ETHERADDRL-1) - i];
4045 		} else {
4046 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
4047 			    = mmac_info->mac_pool[slot].addr[
4048 			    (ETHERADDRL - 1) - i];
4049 		}
4050 	}
4051 }
4052 
4053 /*
4054  * nxge_altmac_set() -- Set an alternate MAC address
4055  */
4056 static int
4057 nxge_altmac_set(p_nxge_t nxgep, uint8_t *maddr, int slot,
4058 	int rdctbl, boolean_t usetbl)
4059 {
4060 	uint8_t addrn;
4061 	uint8_t portn;
4062 	npi_mac_addr_t altmac;
4063 	hostinfo_t mac_rdc;
4064 	p_nxge_class_pt_cfg_t clscfgp;
4065 
4066 
4067 	altmac.w2 = ((uint16_t)maddr[0] << 8) | ((uint16_t)maddr[1] & 0x0ff);
4068 	altmac.w1 = ((uint16_t)maddr[2] << 8) | ((uint16_t)maddr[3] & 0x0ff);
4069 	altmac.w0 = ((uint16_t)maddr[4] << 8) | ((uint16_t)maddr[5] & 0x0ff);
4070 
4071 	portn = nxgep->mac.portnum;
4072 	addrn = (uint8_t)slot - 1;
4073 
4074 	if (npi_mac_altaddr_entry(nxgep->npi_handle, OP_SET,
4075 	    nxgep->function_num, addrn, &altmac) != NPI_SUCCESS)
4076 		return (EIO);
4077 
4078 	/*
4079 	 * Set the rdc table number for the host info entry
4080 	 * for this mac address slot.
4081 	 */
4082 	clscfgp = (p_nxge_class_pt_cfg_t)&nxgep->class_config;
4083 	mac_rdc.value = 0;
4084 	if (usetbl)
4085 		mac_rdc.bits.w0.rdc_tbl_num = rdctbl;
4086 	else
4087 		mac_rdc.bits.w0.rdc_tbl_num =
4088 		    clscfgp->mac_host_info[addrn].rdctbl;
4089 	mac_rdc.bits.w0.mac_pref = clscfgp->mac_host_info[addrn].mpr_npr;
4090 
4091 	if (npi_mac_hostinfo_entry(nxgep->npi_handle, OP_SET,
4092 	    nxgep->function_num, addrn, &mac_rdc) != NPI_SUCCESS) {
4093 		return (EIO);
4094 	}
4095 
4096 	/*
4097 	 * Enable comparison with the alternate MAC address.
4098 	 * While the first alternate addr is enabled by bit 1 of register
4099 	 * BMAC_ALTAD_CMPEN, it is enabled by bit 0 of register
4100 	 * XMAC_ADDR_CMPEN, so slot needs to be converted to addrn
4101 	 * accordingly before calling npi_mac_altaddr_entry.
4102 	 */
4103 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4104 		addrn = (uint8_t)slot - 1;
4105 	else
4106 		addrn = (uint8_t)slot;
4107 
4108 	if (npi_mac_altaddr_enable(nxgep->npi_handle,
4109 	    nxgep->function_num, addrn) != NPI_SUCCESS) {
4110 		return (EIO);
4111 	}
4112 
4113 	return (0);
4114 }
4115 
4116 /*
4117  * nxeg_m_mmac_add_g() - find an unused address slot, set the address
4118  * value to the one specified, enable the port to start filtering on
4119  * the new MAC address.  Returns 0 on success.
4120  */
4121 int
4122 nxge_m_mmac_add_g(void *arg, const uint8_t *maddr, int rdctbl,
4123 	boolean_t usetbl)
4124 {
4125 	p_nxge_t nxgep = arg;
4126 	int slot;
4127 	nxge_mmac_t *mmac_info;
4128 	int err;
4129 	nxge_status_t status;
4130 
4131 	mutex_enter(nxgep->genlock);
4132 
4133 	/*
4134 	 * Make sure that nxge is initialized, if _start() has
4135 	 * not been called.
4136 	 */
4137 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4138 		status = nxge_init(nxgep);
4139 		if (status != NXGE_OK) {
4140 			mutex_exit(nxgep->genlock);
4141 			return (ENXIO);
4142 		}
4143 	}
4144 
4145 	mmac_info = &nxgep->nxge_mmac_info;
4146 	if (mmac_info->naddrfree == 0) {
4147 		mutex_exit(nxgep->genlock);
4148 		return (ENOSPC);
4149 	}
4150 
4151 	/*
4152 	 * 	Search for the first available slot. Because naddrfree
4153 	 * is not zero, we are guaranteed to find one.
4154 	 *	Each of the first two ports of Neptune has 16 alternate
4155 	 * MAC slots but only the first 7 (of 15) slots have assigned factory
4156 	 * MAC addresses. We first search among the slots without bundled
4157 	 * factory MACs. If we fail to find one in that range, then we
4158 	 * search the slots with bundled factory MACs.  A factory MAC
4159 	 * will be wasted while the slot is used with a user MAC address.
4160 	 * But the slot could be used by factory MAC again after calling
4161 	 * nxge_m_mmac_remove and nxge_m_mmac_reserve.
4162 	 */
4163 	for (slot = 0; slot <= mmac_info->num_mmac; slot++) {
4164 		if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
4165 			break;
4166 	}
4167 
4168 	ASSERT(slot <= mmac_info->num_mmac);
4169 
4170 	if ((err = nxge_altmac_set(nxgep, (uint8_t *)maddr, slot, rdctbl,
4171 	    usetbl)) != 0) {
4172 		mutex_exit(nxgep->genlock);
4173 		return (err);
4174 	}
4175 
4176 	bcopy(maddr, mmac_info->mac_pool[slot].addr, ETHERADDRL);
4177 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED;
4178 	mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
4179 	mmac_info->naddrfree--;
4180 	nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4181 
4182 	mutex_exit(nxgep->genlock);
4183 	return (0);
4184 }
4185 
4186 /*
4187  * Remove the specified mac address and update the HW not to filter
4188  * the mac address anymore.
4189  */
4190 int
4191 nxge_m_mmac_remove(void *arg, int slot)
4192 {
4193 	p_nxge_t nxgep = arg;
4194 	nxge_mmac_t *mmac_info;
4195 	uint8_t addrn;
4196 	uint8_t portn;
4197 	int err = 0;
4198 	nxge_status_t status;
4199 
4200 	mutex_enter(nxgep->genlock);
4201 
4202 	/*
4203 	 * Make sure that nxge is initialized, if _start() has
4204 	 * not been called.
4205 	 */
4206 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4207 		status = nxge_init(nxgep);
4208 		if (status != NXGE_OK) {
4209 			mutex_exit(nxgep->genlock);
4210 			return (ENXIO);
4211 		}
4212 	}
4213 
4214 	mmac_info = &nxgep->nxge_mmac_info;
4215 	if (slot < 1 || slot > mmac_info->num_mmac) {
4216 		mutex_exit(nxgep->genlock);
4217 		return (EINVAL);
4218 	}
4219 
4220 	portn = nxgep->mac.portnum;
4221 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4222 		addrn = (uint8_t)slot - 1;
4223 	else
4224 		addrn = (uint8_t)slot;
4225 
4226 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
4227 		if (npi_mac_altaddr_disable(nxgep->npi_handle, portn, addrn)
4228 		    == NPI_SUCCESS) {
4229 			mmac_info->naddrfree++;
4230 			mmac_info->mac_pool[slot].flags &= ~MMAC_SLOT_USED;
4231 			/*
4232 			 * Regardless if the MAC we just stopped filtering
4233 			 * is a user addr or a facory addr, we must set
4234 			 * the MMAC_VENDOR_ADDR flag if this slot has an
4235 			 * associated factory MAC to indicate that a factory
4236 			 * MAC is available.
4237 			 */
4238 			if (slot <= mmac_info->num_factory_mmac) {
4239 				mmac_info->mac_pool[slot].flags
4240 				    |= MMAC_VENDOR_ADDR;
4241 			}
4242 			/*
4243 			 * Clear mac_pool[slot].addr so that kstat shows 0
4244 			 * alternate MAC address if the slot is not used.
4245 			 * (But nxge_m_mmac_get returns the factory MAC even
4246 			 * when the slot is not used!)
4247 			 */
4248 			bzero(mmac_info->mac_pool[slot].addr, ETHERADDRL);
4249 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4250 		} else {
4251 			err = EIO;
4252 		}
4253 	} else {
4254 		err = EINVAL;
4255 	}
4256 
4257 	mutex_exit(nxgep->genlock);
4258 	return (err);
4259 }
4260 
4261 /*
4262  * The callback to query all the factory addresses. naddr must be the same as
4263  * the number of factory addresses (returned by MAC_CAPAB_MULTIFACTADDR), and
4264  * mcm_addr is the space allocated for keep all the addresses, whose size is
4265  * naddr * MAXMACADDRLEN.
4266  */
4267 static void
4268 nxge_m_getfactaddr(void *arg, uint_t naddr, uint8_t *addr)
4269 {
4270 	nxge_t		*nxgep = arg;
4271 	nxge_mmac_t	*mmac_info;
4272 	int		i;
4273 
4274 	mutex_enter(nxgep->genlock);
4275 
4276 	mmac_info = &nxgep->nxge_mmac_info;
4277 	ASSERT(naddr == mmac_info->num_factory_mmac);
4278 
4279 	for (i = 0; i < naddr; i++) {
4280 		bcopy(mmac_info->factory_mac_pool[i + 1],
4281 		    addr + i * MAXMACADDRLEN, ETHERADDRL);
4282 	}
4283 
4284 	mutex_exit(nxgep->genlock);
4285 }
4286 
4287 
4288 static boolean_t
4289 nxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
4290 {
4291 	nxge_t *nxgep = arg;
4292 	uint32_t *txflags = cap_data;
4293 
4294 	switch (cap) {
4295 	case MAC_CAPAB_HCKSUM:
4296 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4297 		    "==> nxge_m_getcapab: checksum %d", nxge_cksum_offload));
4298 		if (nxge_cksum_offload <= 1) {
4299 			*txflags = HCKSUM_INET_PARTIAL;
4300 		}
4301 		break;
4302 
4303 	case MAC_CAPAB_MULTIFACTADDR: {
4304 		mac_capab_multifactaddr_t	*mfacp = cap_data;
4305 
4306 		mutex_enter(nxgep->genlock);
4307 		mfacp->mcm_naddr = nxgep->nxge_mmac_info.num_factory_mmac;
4308 		mfacp->mcm_getaddr = nxge_m_getfactaddr;
4309 		mutex_exit(nxgep->genlock);
4310 		break;
4311 	}
4312 
4313 	case MAC_CAPAB_LSO: {
4314 		mac_capab_lso_t *cap_lso = cap_data;
4315 
4316 		if (nxgep->soft_lso_enable) {
4317 			if (nxge_cksum_offload <= 1) {
4318 				cap_lso->lso_flags = LSO_TX_BASIC_TCP_IPV4;
4319 				if (nxge_lso_max > NXGE_LSO_MAXLEN) {
4320 					nxge_lso_max = NXGE_LSO_MAXLEN;
4321 				}
4322 				cap_lso->lso_basic_tcp_ipv4.lso_max =
4323 				    nxge_lso_max;
4324 			}
4325 			break;
4326 		} else {
4327 			return (B_FALSE);
4328 		}
4329 	}
4330 
4331 	case MAC_CAPAB_RINGS: {
4332 		mac_capab_rings_t	*cap_rings = cap_data;
4333 		p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
4334 
4335 		mutex_enter(nxgep->genlock);
4336 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
4337 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4338 			cap_rings->mr_rnum = p_cfgp->max_rdcs;
4339 			cap_rings->mr_rget = nxge_fill_ring;
4340 			cap_rings->mr_gnum = p_cfgp->max_rdc_grpids;
4341 			cap_rings->mr_gget = nxge_hio_group_get;
4342 			cap_rings->mr_gaddring = nxge_group_add_ring;
4343 			cap_rings->mr_gremring = nxge_group_rem_ring;
4344 
4345 			NXGE_DEBUG_MSG((nxgep, RX_CTL,
4346 			    "==> nxge_m_getcapab: rx nrings[%d] ngroups[%d]",
4347 			    p_cfgp->max_rdcs, p_cfgp->max_rdc_grpids));
4348 		} else {
4349 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4350 			cap_rings->mr_rnum = p_cfgp->tdc.count;
4351 			cap_rings->mr_rget = nxge_fill_ring;
4352 			if (isLDOMservice(nxgep)) {
4353 				/* share capable */
4354 				/* Do not report the default ring: hence -1 */
4355 				cap_rings->mr_gnum =
4356 				    NXGE_MAX_TDC_GROUPS / nxgep->nports - 1;
4357 			} else {
4358 				cap_rings->mr_gnum = 0;
4359 			}
4360 
4361 			cap_rings->mr_gget = nxge_hio_group_get;
4362 			cap_rings->mr_gaddring = nxge_group_add_ring;
4363 			cap_rings->mr_gremring = nxge_group_rem_ring;
4364 
4365 			NXGE_DEBUG_MSG((nxgep, TX_CTL,
4366 			    "==> nxge_m_getcapab: tx rings # of rings %d",
4367 			    p_cfgp->tdc.count));
4368 		}
4369 		mutex_exit(nxgep->genlock);
4370 		break;
4371 	}
4372 
4373 #if defined(sun4v)
4374 	case MAC_CAPAB_SHARES: {
4375 		mac_capab_share_t *mshares = (mac_capab_share_t *)cap_data;
4376 
4377 		/*
4378 		 * Only the service domain driver responds to
4379 		 * this capability request.
4380 		 */
4381 		mutex_enter(nxgep->genlock);
4382 		if (isLDOMservice(nxgep)) {
4383 			mshares->ms_snum = 3;
4384 			mshares->ms_handle = (void *)nxgep;
4385 			mshares->ms_salloc = nxge_hio_share_alloc;
4386 			mshares->ms_sfree = nxge_hio_share_free;
4387 			mshares->ms_sadd = nxge_hio_share_add_group;
4388 			mshares->ms_sremove = nxge_hio_share_rem_group;
4389 			mshares->ms_squery = nxge_hio_share_query;
4390 			mshares->ms_sbind = nxge_hio_share_bind;
4391 			mshares->ms_sunbind = nxge_hio_share_unbind;
4392 			mutex_exit(nxgep->genlock);
4393 		} else {
4394 			mutex_exit(nxgep->genlock);
4395 			return (B_FALSE);
4396 		}
4397 		break;
4398 	}
4399 #endif
4400 	default:
4401 		return (B_FALSE);
4402 	}
4403 	return (B_TRUE);
4404 }
4405 
4406 static boolean_t
4407 nxge_param_locked(mac_prop_id_t pr_num)
4408 {
4409 	/*
4410 	 * All adv_* parameters are locked (read-only) while
4411 	 * the device is in any sort of loopback mode ...
4412 	 */
4413 	switch (pr_num) {
4414 		case MAC_PROP_ADV_1000FDX_CAP:
4415 		case MAC_PROP_EN_1000FDX_CAP:
4416 		case MAC_PROP_ADV_1000HDX_CAP:
4417 		case MAC_PROP_EN_1000HDX_CAP:
4418 		case MAC_PROP_ADV_100FDX_CAP:
4419 		case MAC_PROP_EN_100FDX_CAP:
4420 		case MAC_PROP_ADV_100HDX_CAP:
4421 		case MAC_PROP_EN_100HDX_CAP:
4422 		case MAC_PROP_ADV_10FDX_CAP:
4423 		case MAC_PROP_EN_10FDX_CAP:
4424 		case MAC_PROP_ADV_10HDX_CAP:
4425 		case MAC_PROP_EN_10HDX_CAP:
4426 		case MAC_PROP_AUTONEG:
4427 		case MAC_PROP_FLOWCTRL:
4428 			return (B_TRUE);
4429 	}
4430 	return (B_FALSE);
4431 }
4432 
4433 /*
4434  * callback functions for set/get of properties
4435  */
4436 static int
4437 nxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4438     uint_t pr_valsize, const void *pr_val)
4439 {
4440 	nxge_t		*nxgep = barg;
4441 	p_nxge_param_t	param_arr;
4442 	p_nxge_stats_t	statsp;
4443 	int		err = 0;
4444 	uint8_t		val;
4445 	uint32_t	cur_mtu, new_mtu, old_framesize;
4446 	link_flowctrl_t	fl;
4447 
4448 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_setprop"));
4449 	param_arr = nxgep->param_arr;
4450 	statsp = nxgep->statsp;
4451 	mutex_enter(nxgep->genlock);
4452 	if (statsp->port_stats.lb_mode != nxge_lb_normal &&
4453 	    nxge_param_locked(pr_num)) {
4454 		/*
4455 		 * All adv_* parameters are locked (read-only)
4456 		 * while the device is in any sort of loopback mode.
4457 		 */
4458 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4459 		    "==> nxge_m_setprop: loopback mode: read only"));
4460 		mutex_exit(nxgep->genlock);
4461 		return (EBUSY);
4462 	}
4463 
4464 	val = *(uint8_t *)pr_val;
4465 	switch (pr_num) {
4466 		case MAC_PROP_EN_1000FDX_CAP:
4467 			nxgep->param_en_1000fdx = val;
4468 			param_arr[param_anar_1000fdx].value = val;
4469 
4470 			goto reprogram;
4471 
4472 		case MAC_PROP_EN_100FDX_CAP:
4473 			nxgep->param_en_100fdx = val;
4474 			param_arr[param_anar_100fdx].value = val;
4475 
4476 			goto reprogram;
4477 
4478 		case MAC_PROP_EN_10FDX_CAP:
4479 			nxgep->param_en_10fdx = val;
4480 			param_arr[param_anar_10fdx].value = val;
4481 
4482 			goto reprogram;
4483 
4484 		case MAC_PROP_EN_1000HDX_CAP:
4485 		case MAC_PROP_EN_100HDX_CAP:
4486 		case MAC_PROP_EN_10HDX_CAP:
4487 		case MAC_PROP_ADV_1000FDX_CAP:
4488 		case MAC_PROP_ADV_1000HDX_CAP:
4489 		case MAC_PROP_ADV_100FDX_CAP:
4490 		case MAC_PROP_ADV_100HDX_CAP:
4491 		case MAC_PROP_ADV_10FDX_CAP:
4492 		case MAC_PROP_ADV_10HDX_CAP:
4493 		case MAC_PROP_STATUS:
4494 		case MAC_PROP_SPEED:
4495 		case MAC_PROP_DUPLEX:
4496 			err = EINVAL; /* cannot set read-only properties */
4497 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4498 			    "==> nxge_m_setprop:  read only property %d",
4499 			    pr_num));
4500 			break;
4501 
4502 		case MAC_PROP_AUTONEG:
4503 			param_arr[param_autoneg].value = val;
4504 
4505 			goto reprogram;
4506 
4507 		case MAC_PROP_MTU:
4508 			cur_mtu = nxgep->mac.default_mtu;
4509 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
4510 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4511 			    "==> nxge_m_setprop: set MTU: %d is_jumbo %d",
4512 			    new_mtu, nxgep->mac.is_jumbo));
4513 
4514 			if (new_mtu == cur_mtu) {
4515 				err = 0;
4516 				break;
4517 			}
4518 
4519 			if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
4520 				err = EBUSY;
4521 				break;
4522 			}
4523 
4524 			if ((new_mtu < NXGE_DEFAULT_MTU) ||
4525 			    (new_mtu > NXGE_MAXIMUM_MTU)) {
4526 				err = EINVAL;
4527 				break;
4528 			}
4529 
4530 			old_framesize = (uint32_t)nxgep->mac.maxframesize;
4531 			nxgep->mac.maxframesize = (uint16_t)
4532 			    (new_mtu + NXGE_EHEADER_VLAN_CRC);
4533 			if (nxge_mac_set_framesize(nxgep)) {
4534 				nxgep->mac.maxframesize =
4535 				    (uint16_t)old_framesize;
4536 				err = EINVAL;
4537 				break;
4538 			}
4539 
4540 			err = mac_maxsdu_update(nxgep->mach, new_mtu);
4541 			if (err) {
4542 				nxgep->mac.maxframesize =
4543 				    (uint16_t)old_framesize;
4544 				err = EINVAL;
4545 				break;
4546 			}
4547 
4548 			nxgep->mac.default_mtu = new_mtu;
4549 			if (new_mtu > NXGE_DEFAULT_MTU)
4550 				nxgep->mac.is_jumbo = B_TRUE;
4551 			else
4552 				nxgep->mac.is_jumbo = B_FALSE;
4553 
4554 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4555 			    "==> nxge_m_setprop: set MTU: %d maxframe %d",
4556 			    new_mtu, nxgep->mac.maxframesize));
4557 			break;
4558 
4559 		case MAC_PROP_FLOWCTRL:
4560 			bcopy(pr_val, &fl, sizeof (fl));
4561 			switch (fl) {
4562 			default:
4563 				err = EINVAL;
4564 				break;
4565 
4566 			case LINK_FLOWCTRL_NONE:
4567 				param_arr[param_anar_pause].value = 0;
4568 				break;
4569 
4570 			case LINK_FLOWCTRL_RX:
4571 				param_arr[param_anar_pause].value = 1;
4572 				break;
4573 
4574 			case LINK_FLOWCTRL_TX:
4575 			case LINK_FLOWCTRL_BI:
4576 				err = EINVAL;
4577 				break;
4578 			}
4579 
4580 reprogram:
4581 			if (err == 0) {
4582 				if (!nxge_param_link_update(nxgep)) {
4583 					err = EINVAL;
4584 				}
4585 			}
4586 			break;
4587 		case MAC_PROP_PRIVATE:
4588 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4589 			    "==> nxge_m_setprop: private property"));
4590 			err = nxge_set_priv_prop(nxgep, pr_name, pr_valsize,
4591 			    pr_val);
4592 			break;
4593 
4594 		default:
4595 			err = ENOTSUP;
4596 			break;
4597 	}
4598 
4599 	mutex_exit(nxgep->genlock);
4600 
4601 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4602 	    "<== nxge_m_setprop (return %d)", err));
4603 	return (err);
4604 }
4605 
4606 static int
4607 nxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4608     uint_t pr_flags, uint_t pr_valsize, void *pr_val, uint_t *perm)
4609 {
4610 	nxge_t 		*nxgep = barg;
4611 	p_nxge_param_t	param_arr = nxgep->param_arr;
4612 	p_nxge_stats_t	statsp = nxgep->statsp;
4613 	int		err = 0;
4614 	link_flowctrl_t	fl;
4615 	uint64_t	tmp = 0;
4616 	link_state_t	ls;
4617 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4618 
4619 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4620 	    "==> nxge_m_getprop: pr_num %d", pr_num));
4621 
4622 	if (pr_valsize == 0)
4623 		return (EINVAL);
4624 
4625 	*perm = MAC_PROP_PERM_RW;
4626 
4627 	if ((is_default) && (pr_num != MAC_PROP_PRIVATE)) {
4628 		err = nxge_get_def_val(nxgep, pr_num, pr_valsize, pr_val);
4629 		return (err);
4630 	}
4631 
4632 	bzero(pr_val, pr_valsize);
4633 	switch (pr_num) {
4634 		case MAC_PROP_DUPLEX:
4635 			*perm = MAC_PROP_PERM_READ;
4636 			*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
4637 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4638 			    "==> nxge_m_getprop: duplex mode %d",
4639 			    *(uint8_t *)pr_val));
4640 			break;
4641 
4642 		case MAC_PROP_SPEED:
4643 			if (pr_valsize < sizeof (uint64_t))
4644 				return (EINVAL);
4645 			*perm = MAC_PROP_PERM_READ;
4646 			tmp = statsp->mac_stats.link_speed * 1000000ull;
4647 			bcopy(&tmp, pr_val, sizeof (tmp));
4648 			break;
4649 
4650 		case MAC_PROP_STATUS:
4651 			if (pr_valsize < sizeof (link_state_t))
4652 				return (EINVAL);
4653 			*perm = MAC_PROP_PERM_READ;
4654 			if (!statsp->mac_stats.link_up)
4655 				ls = LINK_STATE_DOWN;
4656 			else
4657 				ls = LINK_STATE_UP;
4658 			bcopy(&ls, pr_val, sizeof (ls));
4659 			break;
4660 
4661 		case MAC_PROP_AUTONEG:
4662 			*(uint8_t *)pr_val =
4663 			    param_arr[param_autoneg].value;
4664 			break;
4665 
4666 		case MAC_PROP_FLOWCTRL:
4667 			if (pr_valsize < sizeof (link_flowctrl_t))
4668 				return (EINVAL);
4669 
4670 			fl = LINK_FLOWCTRL_NONE;
4671 			if (param_arr[param_anar_pause].value) {
4672 				fl = LINK_FLOWCTRL_RX;
4673 			}
4674 			bcopy(&fl, pr_val, sizeof (fl));
4675 			break;
4676 
4677 		case MAC_PROP_ADV_1000FDX_CAP:
4678 			*perm = MAC_PROP_PERM_READ;
4679 			*(uint8_t *)pr_val =
4680 			    param_arr[param_anar_1000fdx].value;
4681 			break;
4682 
4683 		case MAC_PROP_EN_1000FDX_CAP:
4684 			*(uint8_t *)pr_val = nxgep->param_en_1000fdx;
4685 			break;
4686 
4687 		case MAC_PROP_ADV_100FDX_CAP:
4688 			*perm = MAC_PROP_PERM_READ;
4689 			*(uint8_t *)pr_val =
4690 			    param_arr[param_anar_100fdx].value;
4691 			break;
4692 
4693 		case MAC_PROP_EN_100FDX_CAP:
4694 			*(uint8_t *)pr_val = nxgep->param_en_100fdx;
4695 			break;
4696 
4697 		case MAC_PROP_ADV_10FDX_CAP:
4698 			*perm = MAC_PROP_PERM_READ;
4699 			*(uint8_t *)pr_val =
4700 			    param_arr[param_anar_10fdx].value;
4701 			break;
4702 
4703 		case MAC_PROP_EN_10FDX_CAP:
4704 			*(uint8_t *)pr_val = nxgep->param_en_10fdx;
4705 			break;
4706 
4707 		case MAC_PROP_EN_1000HDX_CAP:
4708 		case MAC_PROP_EN_100HDX_CAP:
4709 		case MAC_PROP_EN_10HDX_CAP:
4710 		case MAC_PROP_ADV_1000HDX_CAP:
4711 		case MAC_PROP_ADV_100HDX_CAP:
4712 		case MAC_PROP_ADV_10HDX_CAP:
4713 			err = ENOTSUP;
4714 			break;
4715 
4716 		case MAC_PROP_PRIVATE:
4717 			err = nxge_get_priv_prop(nxgep, pr_name, pr_flags,
4718 			    pr_valsize, pr_val, perm);
4719 			break;
4720 
4721 		case MAC_PROP_MTU: {
4722 			mac_propval_range_t	range;
4723 
4724 			if (!(pr_flags & MAC_PROP_POSSIBLE))
4725 				return (ENOTSUP);
4726 			if (pr_valsize < sizeof (mac_propval_range_t))
4727 				return (EINVAL);
4728 			range.mpr_count = 1;
4729 			range.mpr_type = MAC_PROPVAL_UINT32;
4730 			range.range_uint32[0].mpur_min =
4731 			    range.range_uint32[0].mpur_max = NXGE_DEFAULT_MTU;
4732 			if (nxgep->mac.is_jumbo)
4733 				range.range_uint32[0].mpur_max =
4734 				    NXGE_MAXIMUM_MTU;
4735 			bcopy(&range, pr_val, sizeof (range));
4736 			break;
4737 		}
4738 		default:
4739 			err = EINVAL;
4740 			break;
4741 	}
4742 
4743 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_getprop"));
4744 
4745 	return (err);
4746 }
4747 
4748 /* ARGSUSED */
4749 static int
4750 nxge_set_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_valsize,
4751     const void *pr_val)
4752 {
4753 	p_nxge_param_t	param_arr = nxgep->param_arr;
4754 	int		err = 0;
4755 	long		result;
4756 
4757 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4758 	    "==> nxge_set_priv_prop: name %s", pr_name));
4759 
4760 	/* Blanking */
4761 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
4762 		err = nxge_param_rx_intr_time(nxgep, NULL, NULL,
4763 		    (char *)pr_val,
4764 		    (caddr_t)&param_arr[param_rxdma_intr_time]);
4765 		if (err) {
4766 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4767 			    "<== nxge_set_priv_prop: "
4768 			    "unable to set (%s)", pr_name));
4769 			err = EINVAL;
4770 		} else {
4771 			err = 0;
4772 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4773 			    "<== nxge_set_priv_prop: "
4774 			    "set (%s)", pr_name));
4775 		}
4776 
4777 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4778 		    "<== nxge_set_priv_prop: name %s (value %d)",
4779 		    pr_name, result));
4780 
4781 		return (err);
4782 	}
4783 
4784 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
4785 		err = nxge_param_rx_intr_pkts(nxgep, NULL, NULL,
4786 		    (char *)pr_val,
4787 		    (caddr_t)&param_arr[param_rxdma_intr_pkts]);
4788 		if (err) {
4789 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4790 			    "<== nxge_set_priv_prop: "
4791 			    "unable to set (%s)", pr_name));
4792 			err = EINVAL;
4793 		} else {
4794 			err = 0;
4795 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4796 			    "<== nxge_set_priv_prop: "
4797 			    "set (%s)", pr_name));
4798 		}
4799 
4800 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4801 		    "<== nxge_set_priv_prop: name %s (value %d)",
4802 		    pr_name, result));
4803 
4804 		return (err);
4805 	}
4806 
4807 	/* Classification */
4808 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
4809 		if (pr_val == NULL) {
4810 			err = EINVAL;
4811 			return (err);
4812 		}
4813 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4814 
4815 		err = nxge_param_set_ip_opt(nxgep, NULL,
4816 		    NULL, (char *)pr_val,
4817 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
4818 
4819 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4820 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4821 		    pr_name, result));
4822 
4823 		return (err);
4824 	}
4825 
4826 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
4827 		if (pr_val == NULL) {
4828 			err = EINVAL;
4829 			return (err);
4830 		}
4831 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4832 
4833 		err = nxge_param_set_ip_opt(nxgep, NULL,
4834 		    NULL, (char *)pr_val,
4835 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
4836 
4837 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4838 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4839 		    pr_name, result));
4840 
4841 		return (err);
4842 	}
4843 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
4844 		if (pr_val == NULL) {
4845 			err = EINVAL;
4846 			return (err);
4847 		}
4848 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4849 
4850 		err = nxge_param_set_ip_opt(nxgep, NULL,
4851 		    NULL, (char *)pr_val,
4852 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
4853 
4854 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4855 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4856 		    pr_name, result));
4857 
4858 		return (err);
4859 	}
4860 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
4861 		if (pr_val == NULL) {
4862 			err = EINVAL;
4863 			return (err);
4864 		}
4865 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4866 
4867 		err = nxge_param_set_ip_opt(nxgep, NULL,
4868 		    NULL, (char *)pr_val,
4869 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
4870 
4871 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4872 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4873 		    pr_name, result));
4874 
4875 		return (err);
4876 	}
4877 
4878 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
4879 		if (pr_val == NULL) {
4880 			err = EINVAL;
4881 			return (err);
4882 		}
4883 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4884 
4885 		err = nxge_param_set_ip_opt(nxgep, NULL,
4886 		    NULL, (char *)pr_val,
4887 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
4888 
4889 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4890 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4891 		    pr_name, result));
4892 
4893 		return (err);
4894 	}
4895 
4896 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
4897 		if (pr_val == NULL) {
4898 			err = EINVAL;
4899 			return (err);
4900 		}
4901 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4902 
4903 		err = nxge_param_set_ip_opt(nxgep, NULL,
4904 		    NULL, (char *)pr_val,
4905 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
4906 
4907 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4908 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4909 		    pr_name, result));
4910 
4911 		return (err);
4912 	}
4913 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
4914 		if (pr_val == NULL) {
4915 			err = EINVAL;
4916 			return (err);
4917 		}
4918 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4919 
4920 		err = nxge_param_set_ip_opt(nxgep, NULL,
4921 		    NULL, (char *)pr_val,
4922 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
4923 
4924 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4925 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4926 		    pr_name, result));
4927 
4928 		return (err);
4929 	}
4930 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
4931 		if (pr_val == NULL) {
4932 			err = EINVAL;
4933 			return (err);
4934 		}
4935 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4936 
4937 		err = nxge_param_set_ip_opt(nxgep, NULL,
4938 		    NULL, (char *)pr_val,
4939 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
4940 
4941 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4942 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4943 		    pr_name, result));
4944 
4945 		return (err);
4946 	}
4947 
4948 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
4949 		if (pr_val == NULL) {
4950 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4951 			    "==> nxge_set_priv_prop: name %s (null)", pr_name));
4952 			err = EINVAL;
4953 			return (err);
4954 		}
4955 
4956 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4957 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4958 		    "<== nxge_set_priv_prop: name %s "
4959 		    "(lso %d pr_val %s value %d)",
4960 		    pr_name, nxgep->soft_lso_enable, pr_val, result));
4961 
4962 		if (result > 1 || result < 0) {
4963 			err = EINVAL;
4964 		} else {
4965 			if (nxgep->soft_lso_enable == (uint32_t)result) {
4966 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4967 				    "no change (%d %d)",
4968 				    nxgep->soft_lso_enable, result));
4969 				return (0);
4970 			}
4971 		}
4972 
4973 		nxgep->soft_lso_enable = (int)result;
4974 
4975 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4976 		    "<== nxge_set_priv_prop: name %s (value %d)",
4977 		    pr_name, result));
4978 
4979 		return (err);
4980 	}
4981 	/*
4982 	 * Commands like "ndd -set /dev/nxge0 adv_10gfdx_cap 1" cause the
4983 	 * following code to be executed.
4984 	 */
4985 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
4986 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4987 		    (caddr_t)&param_arr[param_anar_10gfdx]);
4988 		return (err);
4989 	}
4990 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
4991 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4992 		    (caddr_t)&param_arr[param_anar_pause]);
4993 		return (err);
4994 	}
4995 
4996 	return (EINVAL);
4997 }
4998 
4999 static int
5000 nxge_get_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_flags,
5001     uint_t pr_valsize, void *pr_val, uint_t *perm)
5002 {
5003 	p_nxge_param_t	param_arr = nxgep->param_arr;
5004 	char		valstr[MAXNAMELEN];
5005 	int		err = EINVAL;
5006 	uint_t		strsize;
5007 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
5008 
5009 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5010 	    "==> nxge_get_priv_prop: property %s", pr_name));
5011 
5012 	/* function number */
5013 	if (strcmp(pr_name, "_function_number") == 0) {
5014 		if (is_default)
5015 			return (ENOTSUP);
5016 		*perm = MAC_PROP_PERM_READ;
5017 		(void) snprintf(valstr, sizeof (valstr), "%d",
5018 		    nxgep->function_num);
5019 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5020 		    "==> nxge_get_priv_prop: name %s "
5021 		    "(value %d valstr %s)",
5022 		    pr_name, nxgep->function_num, valstr));
5023 
5024 		err = 0;
5025 		goto done;
5026 	}
5027 
5028 	/* Neptune firmware version */
5029 	if (strcmp(pr_name, "_fw_version") == 0) {
5030 		if (is_default)
5031 			return (ENOTSUP);
5032 		*perm = MAC_PROP_PERM_READ;
5033 		(void) snprintf(valstr, sizeof (valstr), "%s",
5034 		    nxgep->vpd_info.ver);
5035 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5036 		    "==> nxge_get_priv_prop: name %s "
5037 		    "(value %d valstr %s)",
5038 		    pr_name, nxgep->vpd_info.ver, valstr));
5039 
5040 		err = 0;
5041 		goto done;
5042 	}
5043 
5044 	/* port PHY mode */
5045 	if (strcmp(pr_name, "_port_mode") == 0) {
5046 		if (is_default)
5047 			return (ENOTSUP);
5048 		*perm = MAC_PROP_PERM_READ;
5049 		switch (nxgep->mac.portmode) {
5050 		case PORT_1G_COPPER:
5051 			(void) snprintf(valstr, sizeof (valstr), "1G copper %s",
5052 			    nxgep->hot_swappable_phy ?
5053 			    "[Hot Swappable]" : "");
5054 			break;
5055 		case PORT_1G_FIBER:
5056 			(void) snprintf(valstr, sizeof (valstr), "1G fiber %s",
5057 			    nxgep->hot_swappable_phy ?
5058 			    "[hot swappable]" : "");
5059 			break;
5060 		case PORT_10G_COPPER:
5061 			(void) snprintf(valstr, sizeof (valstr),
5062 			    "10G copper %s",
5063 			    nxgep->hot_swappable_phy ?
5064 			    "[hot swappable]" : "");
5065 			break;
5066 		case PORT_10G_FIBER:
5067 			(void) snprintf(valstr, sizeof (valstr), "10G fiber %s",
5068 			    nxgep->hot_swappable_phy ?
5069 			    "[hot swappable]" : "");
5070 			break;
5071 		case PORT_10G_SERDES:
5072 			(void) snprintf(valstr, sizeof (valstr),
5073 			    "10G serdes %s", nxgep->hot_swappable_phy ?
5074 			    "[hot swappable]" : "");
5075 			break;
5076 		case PORT_1G_SERDES:
5077 			(void) snprintf(valstr, sizeof (valstr), "1G serdes %s",
5078 			    nxgep->hot_swappable_phy ?
5079 			    "[hot swappable]" : "");
5080 			break;
5081 		case PORT_1G_TN1010:
5082 			(void) snprintf(valstr, sizeof (valstr),
5083 			    "1G TN1010 copper %s", nxgep->hot_swappable_phy ?
5084 			    "[hot swappable]" : "");
5085 			break;
5086 		case PORT_10G_TN1010:
5087 			(void) snprintf(valstr, sizeof (valstr),
5088 			    "10G TN1010 copper %s", nxgep->hot_swappable_phy ?
5089 			    "[hot swappable]" : "");
5090 			break;
5091 		case PORT_1G_RGMII_FIBER:
5092 			(void) snprintf(valstr, sizeof (valstr),
5093 			    "1G rgmii fiber %s", nxgep->hot_swappable_phy ?
5094 			    "[hot swappable]" : "");
5095 			break;
5096 		case PORT_HSP_MODE:
5097 			(void) snprintf(valstr, sizeof (valstr),
5098 			    "phy not present[hot swappable]");
5099 			break;
5100 		default:
5101 			(void) snprintf(valstr, sizeof (valstr), "unknown %s",
5102 			    nxgep->hot_swappable_phy ?
5103 			    "[hot swappable]" : "");
5104 			break;
5105 		}
5106 
5107 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5108 		    "==> nxge_get_priv_prop: name %s (value %s)",
5109 		    pr_name, valstr));
5110 
5111 		err = 0;
5112 		goto done;
5113 	}
5114 
5115 	/* Hot swappable PHY */
5116 	if (strcmp(pr_name, "_hot_swap_phy") == 0) {
5117 		if (is_default)
5118 			return (ENOTSUP);
5119 		*perm = MAC_PROP_PERM_READ;
5120 		(void) snprintf(valstr, sizeof (valstr), "%s",
5121 		    nxgep->hot_swappable_phy ?
5122 		    "yes" : "no");
5123 
5124 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5125 		    "==> nxge_get_priv_prop: name %s "
5126 		    "(value %d valstr %s)",
5127 		    pr_name, nxgep->hot_swappable_phy, valstr));
5128 
5129 		err = 0;
5130 		goto done;
5131 	}
5132 
5133 
5134 	/* Receive Interrupt Blanking Parameters */
5135 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
5136 		err = 0;
5137 		if (is_default) {
5138 			(void) snprintf(valstr, sizeof (valstr),
5139 			    "%d", RXDMA_RCR_TO_DEFAULT);
5140 			goto done;
5141 		}
5142 
5143 		(void) snprintf(valstr, sizeof (valstr), "%d",
5144 		    nxgep->intr_timeout);
5145 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5146 		    "==> nxge_get_priv_prop: name %s (value %d)",
5147 		    pr_name,
5148 		    (uint32_t)nxgep->intr_timeout));
5149 		goto done;
5150 	}
5151 
5152 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
5153 		err = 0;
5154 		if (is_default) {
5155 			(void) snprintf(valstr, sizeof (valstr),
5156 			    "%d", RXDMA_RCR_PTHRES_DEFAULT);
5157 			goto done;
5158 		}
5159 		(void) snprintf(valstr, sizeof (valstr), "%d",
5160 		    nxgep->intr_threshold);
5161 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5162 		    "==> nxge_get_priv_prop: name %s (value %d)",
5163 		    pr_name, (uint32_t)nxgep->intr_threshold));
5164 
5165 		goto done;
5166 	}
5167 
5168 	/* Classification and Load Distribution Configuration */
5169 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
5170 		if (is_default) {
5171 			(void) snprintf(valstr, sizeof (valstr), "%x",
5172 			    NXGE_CLASS_FLOW_GEN_SERVER);
5173 			err = 0;
5174 			goto done;
5175 		}
5176 		err = nxge_dld_get_ip_opt(nxgep,
5177 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
5178 
5179 		(void) snprintf(valstr, sizeof (valstr), "%x",
5180 		    (int)param_arr[param_class_opt_ipv4_tcp].value);
5181 
5182 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5183 		    "==> nxge_get_priv_prop: %s", valstr));
5184 		goto done;
5185 	}
5186 
5187 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
5188 		if (is_default) {
5189 			(void) snprintf(valstr, sizeof (valstr), "%x",
5190 			    NXGE_CLASS_FLOW_GEN_SERVER);
5191 			err = 0;
5192 			goto done;
5193 		}
5194 		err = nxge_dld_get_ip_opt(nxgep,
5195 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
5196 
5197 		(void) snprintf(valstr, sizeof (valstr), "%x",
5198 		    (int)param_arr[param_class_opt_ipv4_udp].value);
5199 
5200 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5201 		    "==> nxge_get_priv_prop: %s", valstr));
5202 		goto done;
5203 	}
5204 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
5205 		if (is_default) {
5206 			(void) snprintf(valstr, sizeof (valstr), "%x",
5207 			    NXGE_CLASS_FLOW_GEN_SERVER);
5208 			err = 0;
5209 			goto done;
5210 		}
5211 		err = nxge_dld_get_ip_opt(nxgep,
5212 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
5213 
5214 		(void) snprintf(valstr, sizeof (valstr), "%x",
5215 		    (int)param_arr[param_class_opt_ipv4_ah].value);
5216 
5217 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5218 		    "==> nxge_get_priv_prop: %s", valstr));
5219 		goto done;
5220 	}
5221 
5222 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
5223 		if (is_default) {
5224 			(void) snprintf(valstr, sizeof (valstr), "%x",
5225 			    NXGE_CLASS_FLOW_GEN_SERVER);
5226 			err = 0;
5227 			goto done;
5228 		}
5229 		err = nxge_dld_get_ip_opt(nxgep,
5230 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
5231 
5232 		(void) snprintf(valstr, sizeof (valstr), "%x",
5233 		    (int)param_arr[param_class_opt_ipv4_sctp].value);
5234 
5235 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5236 		    "==> nxge_get_priv_prop: %s", valstr));
5237 		goto done;
5238 	}
5239 
5240 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
5241 		if (is_default) {
5242 			(void) snprintf(valstr, sizeof (valstr), "%x",
5243 			    NXGE_CLASS_FLOW_GEN_SERVER);
5244 			err = 0;
5245 			goto done;
5246 		}
5247 		err = nxge_dld_get_ip_opt(nxgep,
5248 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
5249 
5250 		(void) snprintf(valstr, sizeof (valstr), "%x",
5251 		    (int)param_arr[param_class_opt_ipv6_tcp].value);
5252 
5253 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5254 		    "==> nxge_get_priv_prop: %s", valstr));
5255 		goto done;
5256 	}
5257 
5258 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
5259 		if (is_default) {
5260 			(void) snprintf(valstr, sizeof (valstr), "%x",
5261 			    NXGE_CLASS_FLOW_GEN_SERVER);
5262 			err = 0;
5263 			goto done;
5264 		}
5265 		err = nxge_dld_get_ip_opt(nxgep,
5266 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
5267 
5268 		(void) snprintf(valstr, sizeof (valstr), "%x",
5269 		    (int)param_arr[param_class_opt_ipv6_udp].value);
5270 
5271 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5272 		    "==> nxge_get_priv_prop: %s", valstr));
5273 		goto done;
5274 	}
5275 
5276 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
5277 		if (is_default) {
5278 			(void) snprintf(valstr, sizeof (valstr), "%x",
5279 			    NXGE_CLASS_FLOW_GEN_SERVER);
5280 			err = 0;
5281 			goto done;
5282 		}
5283 		err = nxge_dld_get_ip_opt(nxgep,
5284 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
5285 
5286 		(void) snprintf(valstr, sizeof (valstr), "%x",
5287 		    (int)param_arr[param_class_opt_ipv6_ah].value);
5288 
5289 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5290 		    "==> nxge_get_priv_prop: %s", valstr));
5291 		goto done;
5292 	}
5293 
5294 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
5295 		if (is_default) {
5296 			(void) snprintf(valstr, sizeof (valstr), "%x",
5297 			    NXGE_CLASS_FLOW_GEN_SERVER);
5298 			err = 0;
5299 			goto done;
5300 		}
5301 		err = nxge_dld_get_ip_opt(nxgep,
5302 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
5303 
5304 		(void) snprintf(valstr, sizeof (valstr), "%x",
5305 		    (int)param_arr[param_class_opt_ipv6_sctp].value);
5306 
5307 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5308 		    "==> nxge_get_priv_prop: %s", valstr));
5309 		goto done;
5310 	}
5311 
5312 	/* Software LSO */
5313 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
5314 		if (is_default) {
5315 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5316 			err = 0;
5317 			goto done;
5318 		}
5319 		(void) snprintf(valstr, sizeof (valstr),
5320 		    "%d", nxgep->soft_lso_enable);
5321 		err = 0;
5322 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5323 		    "==> nxge_get_priv_prop: name %s (value %d)",
5324 		    pr_name, nxgep->soft_lso_enable));
5325 
5326 		goto done;
5327 	}
5328 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5329 		err = 0;
5330 		if (is_default ||
5331 		    nxgep->param_arr[param_anar_10gfdx].value != 0) {
5332 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5333 			goto done;
5334 		} else {
5335 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5336 			goto done;
5337 		}
5338 	}
5339 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5340 		err = 0;
5341 		if (is_default ||
5342 		    nxgep->param_arr[param_anar_pause].value != 0) {
5343 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5344 			goto done;
5345 		} else {
5346 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5347 			goto done;
5348 		}
5349 	}
5350 
5351 done:
5352 	if (err == 0) {
5353 		strsize = (uint_t)strlen(valstr);
5354 		if (pr_valsize < strsize) {
5355 			err = ENOBUFS;
5356 		} else {
5357 			(void) strlcpy(pr_val, valstr, pr_valsize);
5358 		}
5359 	}
5360 
5361 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5362 	    "<== nxge_get_priv_prop: return %d", err));
5363 	return (err);
5364 }
5365 
5366 /*
5367  * Module loading and removing entry points.
5368  */
5369 
5370 DDI_DEFINE_STREAM_OPS(nxge_dev_ops, nulldev, nulldev, nxge_attach, nxge_detach,
5371     nodev, NULL, D_MP, NULL, nxge_quiesce);
5372 
5373 #define	NXGE_DESC_VER		"Sun NIU 10Gb Ethernet"
5374 
5375 /*
5376  * Module linkage information for the kernel.
5377  */
5378 static struct modldrv 	nxge_modldrv = {
5379 	&mod_driverops,
5380 	NXGE_DESC_VER,
5381 	&nxge_dev_ops
5382 };
5383 
5384 static struct modlinkage modlinkage = {
5385 	MODREV_1, (void *) &nxge_modldrv, NULL
5386 };
5387 
5388 int
5389 _init(void)
5390 {
5391 	int		status;
5392 
5393 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
5394 	mac_init_ops(&nxge_dev_ops, "nxge");
5395 	status = ddi_soft_state_init(&nxge_list, sizeof (nxge_t), 0);
5396 	if (status != 0) {
5397 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL,
5398 		    "failed to init device soft state"));
5399 		goto _init_exit;
5400 	}
5401 	status = mod_install(&modlinkage);
5402 	if (status != 0) {
5403 		ddi_soft_state_fini(&nxge_list);
5404 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL, "Mod install failed"));
5405 		goto _init_exit;
5406 	}
5407 
5408 	MUTEX_INIT(&nxge_common_lock, NULL, MUTEX_DRIVER, NULL);
5409 
5410 _init_exit:
5411 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_init status = 0x%X", status));
5412 
5413 	return (status);
5414 }
5415 
5416 int
5417 _fini(void)
5418 {
5419 	int		status;
5420 
5421 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
5422 
5423 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
5424 
5425 	if (nxge_mblks_pending)
5426 		return (EBUSY);
5427 
5428 	status = mod_remove(&modlinkage);
5429 	if (status != DDI_SUCCESS) {
5430 		NXGE_DEBUG_MSG((NULL, MOD_CTL,
5431 		    "Module removal failed 0x%08x",
5432 		    status));
5433 		goto _fini_exit;
5434 	}
5435 
5436 	mac_fini_ops(&nxge_dev_ops);
5437 
5438 	ddi_soft_state_fini(&nxge_list);
5439 
5440 	MUTEX_DESTROY(&nxge_common_lock);
5441 _fini_exit:
5442 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_fini status = 0x%08x", status));
5443 
5444 	return (status);
5445 }
5446 
5447 int
5448 _info(struct modinfo *modinfop)
5449 {
5450 	int		status;
5451 
5452 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
5453 	status = mod_info(&modlinkage, modinfop);
5454 	NXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
5455 
5456 	return (status);
5457 }
5458 
5459 /*ARGSUSED*/
5460 static int
5461 nxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5462 {
5463 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5464 	p_nxge_t		nxgep = rhp->nxgep;
5465 	uint32_t		channel;
5466 	p_tx_ring_t		ring;
5467 
5468 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5469 	ring = nxgep->tx_rings->rings[channel];
5470 
5471 	MUTEX_ENTER(&ring->lock);
5472 	ring->tx_ring_handle = rhp->ring_handle;
5473 	MUTEX_EXIT(&ring->lock);
5474 
5475 	return (0);
5476 }
5477 
5478 static void
5479 nxge_tx_ring_stop(mac_ring_driver_t rdriver)
5480 {
5481 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5482 	p_nxge_t		nxgep = rhp->nxgep;
5483 	uint32_t		channel;
5484 	p_tx_ring_t		ring;
5485 
5486 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5487 	ring = nxgep->tx_rings->rings[channel];
5488 
5489 	MUTEX_ENTER(&ring->lock);
5490 	ring->tx_ring_handle = (mac_ring_handle_t)NULL;
5491 	MUTEX_EXIT(&ring->lock);
5492 }
5493 
5494 static int
5495 nxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5496 {
5497 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5498 	p_nxge_t		nxgep = rhp->nxgep;
5499 	uint32_t		channel;
5500 	p_rx_rcr_ring_t		ring;
5501 	int			i;
5502 
5503 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5504 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5505 
5506 	MUTEX_ENTER(&ring->lock);
5507 
5508 	if (nxgep->rx_channel_started[channel] == B_TRUE) {
5509 		MUTEX_EXIT(&ring->lock);
5510 		return (0);
5511 	}
5512 
5513 	/* set rcr_ring */
5514 	for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5515 		if ((nxgep->ldgvp->ldvp[i].is_rxdma == 1) &&
5516 		    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5517 			ring->ldvp = &nxgep->ldgvp->ldvp[i];
5518 			ring->ldgp = nxgep->ldgvp->ldvp[i].ldgp;
5519 		}
5520 	}
5521 
5522 	nxgep->rx_channel_started[channel] = B_TRUE;
5523 	ring->rcr_mac_handle = rhp->ring_handle;
5524 	ring->rcr_gen_num = mr_gen_num;
5525 	MUTEX_EXIT(&ring->lock);
5526 
5527 	return (0);
5528 }
5529 
5530 static void
5531 nxge_rx_ring_stop(mac_ring_driver_t rdriver)
5532 {
5533 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5534 	p_nxge_t		nxgep = rhp->nxgep;
5535 	uint32_t		channel;
5536 	p_rx_rcr_ring_t		ring;
5537 
5538 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5539 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5540 
5541 	MUTEX_ENTER(&ring->lock);
5542 	nxgep->rx_channel_started[channel] = B_FALSE;
5543 	ring->rcr_mac_handle = NULL;
5544 	MUTEX_EXIT(&ring->lock);
5545 }
5546 
5547 /*
5548  * Callback funtion for MAC layer to register all rings.
5549  */
5550 static void
5551 nxge_fill_ring(void *arg, mac_ring_type_t rtype, const int rg_index,
5552     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
5553 {
5554 	p_nxge_t		nxgep = (p_nxge_t)arg;
5555 	p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
5556 
5557 	NXGE_DEBUG_MSG((nxgep, TX_CTL,
5558 	    "==> nxge_fill_ring 0x%x index %d", rtype, index));
5559 
5560 	switch (rtype) {
5561 	case MAC_RING_TYPE_TX: {
5562 		p_nxge_ring_handle_t	rhandlep;
5563 
5564 		NXGE_DEBUG_MSG((nxgep, TX_CTL,
5565 		    "==> nxge_fill_ring (TX) 0x%x index %d ntdcs %d",
5566 		    rtype, index, p_cfgp->tdc.count));
5567 
5568 		ASSERT((index >= 0) && (index < p_cfgp->tdc.count));
5569 		rhandlep = &nxgep->tx_ring_handles[index];
5570 		rhandlep->nxgep = nxgep;
5571 		rhandlep->index = index;
5572 		rhandlep->ring_handle = rh;
5573 
5574 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5575 		infop->mri_start = nxge_tx_ring_start;
5576 		infop->mri_stop = nxge_tx_ring_stop;
5577 		infop->mri_tx = nxge_tx_ring_send;
5578 
5579 		break;
5580 	}
5581 	case MAC_RING_TYPE_RX: {
5582 		p_nxge_ring_handle_t	rhandlep;
5583 		int			nxge_rindex;
5584 		mac_intr_t		nxge_mac_intr;
5585 
5586 		NXGE_DEBUG_MSG((nxgep, RX_CTL,
5587 		    "==> nxge_fill_ring (RX) 0x%x index %d nrdcs %d",
5588 		    rtype, index, p_cfgp->max_rdcs));
5589 
5590 		/*
5591 		 * 'index' is the ring index within the group.
5592 		 * Find the ring index in the nxge instance.
5593 		 */
5594 		nxge_rindex = nxge_get_rxring_index(nxgep, rg_index, index);
5595 
5596 		ASSERT((nxge_rindex >= 0) && (nxge_rindex < p_cfgp->max_rdcs));
5597 		rhandlep = &nxgep->rx_ring_handles[nxge_rindex];
5598 		rhandlep->nxgep = nxgep;
5599 		rhandlep->index = nxge_rindex;
5600 		rhandlep->ring_handle = rh;
5601 
5602 		/*
5603 		 * Entrypoint to enable interrupt (disable poll) and
5604 		 * disable interrupt (enable poll).
5605 		 */
5606 		nxge_mac_intr.mi_handle = (mac_intr_handle_t)rhandlep;
5607 		nxge_mac_intr.mi_enable = (mac_intr_enable_t)nxge_disable_poll;
5608 		nxge_mac_intr.mi_disable = (mac_intr_disable_t)nxge_enable_poll;
5609 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5610 		infop->mri_start = nxge_rx_ring_start;
5611 		infop->mri_stop = nxge_rx_ring_stop;
5612 		infop->mri_intr = nxge_mac_intr; /* ??? */
5613 		infop->mri_poll = nxge_rx_poll;
5614 
5615 		break;
5616 	}
5617 	default:
5618 		break;
5619 	}
5620 
5621 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_fill_ring 0x%x",
5622 	    rtype));
5623 }
5624 
5625 static void
5626 nxge_group_add_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5627     mac_ring_type_t type)
5628 {
5629 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5630 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5631 	nxge_t			*nxge;
5632 	nxge_grp_t		*grp;
5633 	nxge_rdc_grp_t		*rdc_grp;
5634 	uint16_t		channel;	/* device-wise ring id */
5635 	int			dev_gindex;
5636 	int			rv;
5637 
5638 	nxge = rgroup->nxgep;
5639 
5640 	switch (type) {
5641 	case MAC_RING_TYPE_TX:
5642 		/*
5643 		 * nxge_grp_dc_add takes a channel number which is a
5644 		 * "devise" ring ID.
5645 		 */
5646 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5647 
5648 		/*
5649 		 * Remove the ring from the default group
5650 		 */
5651 		if (rgroup->gindex != 0) {
5652 			(void) nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5653 		}
5654 
5655 		/*
5656 		 * nxge->tx_set.group[] is an array of groups indexed by
5657 		 * a "port" group ID.
5658 		 */
5659 		grp = nxge->tx_set.group[rgroup->gindex];
5660 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5661 		if (rv != 0) {
5662 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5663 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5664 		}
5665 		break;
5666 
5667 	case MAC_RING_TYPE_RX:
5668 		/*
5669 		 * nxge->rx_set.group[] is an array of groups indexed by
5670 		 * a "port" group ID.
5671 		 */
5672 		grp = nxge->rx_set.group[rgroup->gindex];
5673 
5674 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5675 		    rgroup->gindex;
5676 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5677 
5678 		/*
5679 		 * nxge_grp_dc_add takes a channel number which is a
5680 		 * "devise" ring ID.
5681 		 */
5682 		channel = nxge->pt_config.hw_config.start_rdc + rhandle->index;
5683 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_RX, channel);
5684 		if (rv != 0) {
5685 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5686 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5687 		}
5688 
5689 		rdc_grp->map |= (1 << channel);
5690 		rdc_grp->max_rdcs++;
5691 
5692 		(void) nxge_init_fzc_rdc_tbl(nxge, rdc_grp, rgroup->rdctbl);
5693 		break;
5694 	}
5695 }
5696 
5697 static void
5698 nxge_group_rem_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5699     mac_ring_type_t type)
5700 {
5701 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5702 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5703 	nxge_t			*nxge;
5704 	uint16_t		channel;	/* device-wise ring id */
5705 	nxge_rdc_grp_t		*rdc_grp;
5706 	int			dev_gindex;
5707 
5708 	nxge = rgroup->nxgep;
5709 
5710 	switch (type) {
5711 	case MAC_RING_TYPE_TX:
5712 		dev_gindex = nxge->pt_config.hw_config.def_mac_txdma_grpid +
5713 		    rgroup->gindex;
5714 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5715 		nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5716 
5717 		/*
5718 		 * Add the ring back to the default group
5719 		 */
5720 		if (rgroup->gindex != 0) {
5721 			nxge_grp_t *grp;
5722 			grp = nxge->tx_set.group[0];
5723 			(void) nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5724 		}
5725 		break;
5726 
5727 	case MAC_RING_TYPE_RX:
5728 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5729 		    rgroup->gindex;
5730 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5731 		channel = rdc_grp->start_rdc + rhandle->index;
5732 		nxge_grp_dc_remove(nxge, VP_BOUND_RX, channel);
5733 
5734 		rdc_grp->map &= ~(1 << channel);
5735 		rdc_grp->max_rdcs--;
5736 
5737 		(void) nxge_init_fzc_rdc_tbl(nxge, rdc_grp, rgroup->rdctbl);
5738 		break;
5739 	}
5740 }
5741 
5742 
5743 /*ARGSUSED*/
5744 static nxge_status_t
5745 nxge_add_intrs(p_nxge_t nxgep)
5746 {
5747 
5748 	int		intr_types;
5749 	int		type = 0;
5750 	int		ddi_status = DDI_SUCCESS;
5751 	nxge_status_t	status = NXGE_OK;
5752 
5753 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs"));
5754 
5755 	nxgep->nxge_intr_type.intr_registered = B_FALSE;
5756 	nxgep->nxge_intr_type.intr_enabled = B_FALSE;
5757 	nxgep->nxge_intr_type.msi_intx_cnt = 0;
5758 	nxgep->nxge_intr_type.intr_added = 0;
5759 	nxgep->nxge_intr_type.niu_msi_enable = B_FALSE;
5760 	nxgep->nxge_intr_type.intr_type = 0;
5761 
5762 	if (nxgep->niu_type == N2_NIU) {
5763 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5764 	} else if (nxge_msi_enable) {
5765 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5766 	}
5767 
5768 	/* Get the supported interrupt types */
5769 	if ((ddi_status = ddi_intr_get_supported_types(nxgep->dip, &intr_types))
5770 	    != DDI_SUCCESS) {
5771 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_intrs: "
5772 		    "ddi_intr_get_supported_types failed: status 0x%08x",
5773 		    ddi_status));
5774 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5775 	}
5776 	nxgep->nxge_intr_type.intr_types = intr_types;
5777 
5778 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5779 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5780 
5781 	/*
5782 	 * Solaris MSIX is not supported yet. use MSI for now.
5783 	 * nxge_msi_enable (1):
5784 	 *	1 - MSI		2 - MSI-X	others - FIXED
5785 	 */
5786 	switch (nxge_msi_enable) {
5787 	default:
5788 		type = DDI_INTR_TYPE_FIXED;
5789 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5790 		    "use fixed (intx emulation) type %08x",
5791 		    type));
5792 		break;
5793 
5794 	case 2:
5795 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5796 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5797 		if (intr_types & DDI_INTR_TYPE_MSIX) {
5798 			type = DDI_INTR_TYPE_MSIX;
5799 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5800 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5801 			    type));
5802 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
5803 			type = DDI_INTR_TYPE_MSI;
5804 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5805 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5806 			    type));
5807 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5808 			type = DDI_INTR_TYPE_FIXED;
5809 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5810 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5811 			    type));
5812 		}
5813 		break;
5814 
5815 	case 1:
5816 		if (intr_types & DDI_INTR_TYPE_MSI) {
5817 			type = DDI_INTR_TYPE_MSI;
5818 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5819 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5820 			    type));
5821 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
5822 			type = DDI_INTR_TYPE_MSIX;
5823 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5824 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5825 			    type));
5826 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5827 			type = DDI_INTR_TYPE_FIXED;
5828 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5829 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5830 			    type));
5831 		}
5832 	}
5833 
5834 	nxgep->nxge_intr_type.intr_type = type;
5835 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
5836 	    type == DDI_INTR_TYPE_FIXED) &&
5837 	    nxgep->nxge_intr_type.niu_msi_enable) {
5838 		if ((status = nxge_add_intrs_adv(nxgep)) != DDI_SUCCESS) {
5839 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5840 			    " nxge_add_intrs: "
5841 			    " nxge_add_intrs_adv failed: status 0x%08x",
5842 			    status));
5843 			return (status);
5844 		} else {
5845 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5846 			    "interrupts registered : type %d", type));
5847 			nxgep->nxge_intr_type.intr_registered = B_TRUE;
5848 
5849 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
5850 			    "\nAdded advanced nxge add_intr_adv "
5851 			    "intr type 0x%x\n", type));
5852 
5853 			return (status);
5854 		}
5855 	}
5856 
5857 	if (!nxgep->nxge_intr_type.intr_registered) {
5858 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_add_intrs: "
5859 		    "failed to register interrupts"));
5860 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5861 	}
5862 
5863 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_add_intrs"));
5864 	return (status);
5865 }
5866 
5867 static nxge_status_t
5868 nxge_add_intrs_adv(p_nxge_t nxgep)
5869 {
5870 	int		intr_type;
5871 	p_nxge_intr_t	intrp;
5872 
5873 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv"));
5874 
5875 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5876 	intr_type = intrp->intr_type;
5877 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv: type 0x%x",
5878 	    intr_type));
5879 
5880 	switch (intr_type) {
5881 	case DDI_INTR_TYPE_MSI: /* 0x2 */
5882 	case DDI_INTR_TYPE_MSIX: /* 0x4 */
5883 		return (nxge_add_intrs_adv_type(nxgep, intr_type));
5884 
5885 	case DDI_INTR_TYPE_FIXED: /* 0x1 */
5886 		return (nxge_add_intrs_adv_type_fix(nxgep, intr_type));
5887 
5888 	default:
5889 		return (NXGE_ERROR);
5890 	}
5891 }
5892 
5893 
5894 /*ARGSUSED*/
5895 static nxge_status_t
5896 nxge_add_intrs_adv_type(p_nxge_t nxgep, uint32_t int_type)
5897 {
5898 	dev_info_t		*dip = nxgep->dip;
5899 	p_nxge_ldg_t		ldgp;
5900 	p_nxge_intr_t		intrp;
5901 	uint_t			*inthandler;
5902 	void			*arg1, *arg2;
5903 	int			behavior;
5904 	int			nintrs, navail, nrequest;
5905 	int			nactual, nrequired;
5906 	int			inum = 0;
5907 	int			x, y;
5908 	int			ddi_status = DDI_SUCCESS;
5909 	nxge_status_t		status = NXGE_OK;
5910 
5911 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type"));
5912 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5913 	intrp->start_inum = 0;
5914 
5915 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
5916 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
5917 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5918 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
5919 		    "nintrs: %d", ddi_status, nintrs));
5920 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5921 	}
5922 
5923 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
5924 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
5925 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5926 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
5927 		    "nintrs: %d", ddi_status, navail));
5928 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5929 	}
5930 
5931 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
5932 	    "ddi_intr_get_navail() returned: nintrs %d, navail %d",
5933 	    nintrs, navail));
5934 
5935 	/* PSARC/2007/453 MSI-X interrupt limit override */
5936 	if (int_type == DDI_INTR_TYPE_MSIX) {
5937 		nrequest = nxge_create_msi_property(nxgep);
5938 		if (nrequest < navail) {
5939 			navail = nrequest;
5940 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5941 			    "nxge_add_intrs_adv_type: nintrs %d "
5942 			    "navail %d (nrequest %d)",
5943 			    nintrs, navail, nrequest));
5944 		}
5945 	}
5946 
5947 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
5948 		/* MSI must be power of 2 */
5949 		if ((navail & 16) == 16) {
5950 			navail = 16;
5951 		} else if ((navail & 8) == 8) {
5952 			navail = 8;
5953 		} else if ((navail & 4) == 4) {
5954 			navail = 4;
5955 		} else if ((navail & 2) == 2) {
5956 			navail = 2;
5957 		} else {
5958 			navail = 1;
5959 		}
5960 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5961 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
5962 		    "navail %d", nintrs, navail));
5963 	}
5964 
5965 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
5966 	    DDI_INTR_ALLOC_NORMAL);
5967 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
5968 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
5969 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
5970 	    navail, &nactual, behavior);
5971 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
5972 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5973 		    " ddi_intr_alloc() failed: %d",
5974 		    ddi_status));
5975 		kmem_free(intrp->htable, intrp->intr_size);
5976 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5977 	}
5978 
5979 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
5980 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
5981 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5982 		    " ddi_intr_get_pri() failed: %d",
5983 		    ddi_status));
5984 		/* Free already allocated interrupts */
5985 		for (y = 0; y < nactual; y++) {
5986 			(void) ddi_intr_free(intrp->htable[y]);
5987 		}
5988 
5989 		kmem_free(intrp->htable, intrp->intr_size);
5990 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5991 	}
5992 
5993 	nrequired = 0;
5994 	switch (nxgep->niu_type) {
5995 	default:
5996 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
5997 		break;
5998 
5999 	case N2_NIU:
6000 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6001 		break;
6002 	}
6003 
6004 	if (status != NXGE_OK) {
6005 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6006 		    "nxge_add_intrs_adv_typ:nxge_ldgv_init "
6007 		    "failed: 0x%x", status));
6008 		/* Free already allocated interrupts */
6009 		for (y = 0; y < nactual; y++) {
6010 			(void) ddi_intr_free(intrp->htable[y]);
6011 		}
6012 
6013 		kmem_free(intrp->htable, intrp->intr_size);
6014 		return (status);
6015 	}
6016 
6017 	ldgp = nxgep->ldgvp->ldgp;
6018 	for (x = 0; x < nrequired; x++, ldgp++) {
6019 		ldgp->vector = (uint8_t)x;
6020 		ldgp->intdata = SID_DATA(ldgp->func, x);
6021 		arg1 = ldgp->ldvp;
6022 		arg2 = nxgep;
6023 		if (ldgp->nldvs == 1) {
6024 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
6025 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6026 			    "nxge_add_intrs_adv_type: "
6027 			    "arg1 0x%x arg2 0x%x: "
6028 			    "1-1 int handler (entry %d intdata 0x%x)\n",
6029 			    arg1, arg2,
6030 			    x, ldgp->intdata));
6031 		} else if (ldgp->nldvs > 1) {
6032 			inthandler = (uint_t *)ldgp->sys_intr_handler;
6033 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6034 			    "nxge_add_intrs_adv_type: "
6035 			    "arg1 0x%x arg2 0x%x: "
6036 			    "nldevs %d int handler "
6037 			    "(entry %d intdata 0x%x)\n",
6038 			    arg1, arg2,
6039 			    ldgp->nldvs, x, ldgp->intdata));
6040 		}
6041 
6042 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6043 		    "==> nxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
6044 		    "htable 0x%llx", x, intrp->htable[x]));
6045 
6046 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6047 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6048 		    != DDI_SUCCESS) {
6049 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6050 			    "==> nxge_add_intrs_adv_type: failed #%d "
6051 			    "status 0x%x", x, ddi_status));
6052 			for (y = 0; y < intrp->intr_added; y++) {
6053 				(void) ddi_intr_remove_handler(
6054 				    intrp->htable[y]);
6055 			}
6056 			/* Free already allocated intr */
6057 			for (y = 0; y < nactual; y++) {
6058 				(void) ddi_intr_free(intrp->htable[y]);
6059 			}
6060 			kmem_free(intrp->htable, intrp->intr_size);
6061 
6062 			(void) nxge_ldgv_uninit(nxgep);
6063 
6064 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6065 		}
6066 		intrp->intr_added++;
6067 	}
6068 
6069 	intrp->msi_intx_cnt = nactual;
6070 
6071 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6072 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
6073 	    navail, nactual,
6074 	    intrp->msi_intx_cnt,
6075 	    intrp->intr_added));
6076 
6077 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6078 
6079 	(void) nxge_intr_ldgv_init(nxgep);
6080 
6081 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type"));
6082 
6083 	return (status);
6084 }
6085 
6086 /*ARGSUSED*/
6087 static nxge_status_t
6088 nxge_add_intrs_adv_type_fix(p_nxge_t nxgep, uint32_t int_type)
6089 {
6090 	dev_info_t		*dip = nxgep->dip;
6091 	p_nxge_ldg_t		ldgp;
6092 	p_nxge_intr_t		intrp;
6093 	uint_t			*inthandler;
6094 	void			*arg1, *arg2;
6095 	int			behavior;
6096 	int			nintrs, navail;
6097 	int			nactual, nrequired;
6098 	int			inum = 0;
6099 	int			x, y;
6100 	int			ddi_status = DDI_SUCCESS;
6101 	nxge_status_t		status = NXGE_OK;
6102 
6103 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type_fix"));
6104 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6105 	intrp->start_inum = 0;
6106 
6107 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
6108 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
6109 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6110 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
6111 		    "nintrs: %d", status, nintrs));
6112 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6113 	}
6114 
6115 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
6116 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
6117 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6118 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
6119 		    "nintrs: %d", ddi_status, navail));
6120 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6121 	}
6122 
6123 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
6124 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
6125 	    nintrs, navail));
6126 
6127 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
6128 	    DDI_INTR_ALLOC_NORMAL);
6129 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
6130 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
6131 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
6132 	    navail, &nactual, behavior);
6133 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6134 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6135 		    " ddi_intr_alloc() failed: %d",
6136 		    ddi_status));
6137 		kmem_free(intrp->htable, intrp->intr_size);
6138 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6139 	}
6140 
6141 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6142 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6143 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6144 		    " ddi_intr_get_pri() failed: %d",
6145 		    ddi_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 (NXGE_ERROR | NXGE_DDI_FAILED);
6153 	}
6154 
6155 	nrequired = 0;
6156 	switch (nxgep->niu_type) {
6157 	default:
6158 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6159 		break;
6160 
6161 	case N2_NIU:
6162 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6163 		break;
6164 	}
6165 
6166 	if (status != NXGE_OK) {
6167 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6168 		    "nxge_add_intrs_adv_type_fix:nxge_ldgv_init "
6169 		    "failed: 0x%x", status));
6170 		/* Free already allocated interrupts */
6171 		for (y = 0; y < nactual; y++) {
6172 			(void) ddi_intr_free(intrp->htable[y]);
6173 		}
6174 
6175 		kmem_free(intrp->htable, intrp->intr_size);
6176 		return (status);
6177 	}
6178 
6179 	ldgp = nxgep->ldgvp->ldgp;
6180 	for (x = 0; x < nrequired; x++, ldgp++) {
6181 		ldgp->vector = (uint8_t)x;
6182 		if (nxgep->niu_type != N2_NIU) {
6183 			ldgp->intdata = SID_DATA(ldgp->func, x);
6184 		}
6185 
6186 		arg1 = ldgp->ldvp;
6187 		arg2 = nxgep;
6188 		if (ldgp->nldvs == 1) {
6189 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
6190 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6191 			    "nxge_add_intrs_adv_type_fix: "
6192 			    "1-1 int handler(%d) ldg %d ldv %d "
6193 			    "arg1 $%p arg2 $%p\n",
6194 			    x, ldgp->ldg, ldgp->ldvp->ldv,
6195 			    arg1, arg2));
6196 		} else if (ldgp->nldvs > 1) {
6197 			inthandler = (uint_t *)ldgp->sys_intr_handler;
6198 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6199 			    "nxge_add_intrs_adv_type_fix: "
6200 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
6201 			    "arg1 0x%016llx arg2 0x%016llx\n",
6202 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
6203 			    arg1, arg2));
6204 		}
6205 
6206 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6207 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6208 		    != DDI_SUCCESS) {
6209 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6210 			    "==> nxge_add_intrs_adv_type_fix: failed #%d "
6211 			    "status 0x%x", x, ddi_status));
6212 			for (y = 0; y < intrp->intr_added; y++) {
6213 				(void) ddi_intr_remove_handler(
6214 				    intrp->htable[y]);
6215 			}
6216 			for (y = 0; y < nactual; y++) {
6217 				(void) ddi_intr_free(intrp->htable[y]);
6218 			}
6219 			/* Free already allocated intr */
6220 			kmem_free(intrp->htable, intrp->intr_size);
6221 
6222 			(void) nxge_ldgv_uninit(nxgep);
6223 
6224 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6225 		}
6226 		intrp->intr_added++;
6227 	}
6228 
6229 	intrp->msi_intx_cnt = nactual;
6230 
6231 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6232 
6233 	status = nxge_intr_ldgv_init(nxgep);
6234 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type_fix"));
6235 
6236 	return (status);
6237 }
6238 
6239 static void
6240 nxge_remove_intrs(p_nxge_t nxgep)
6241 {
6242 	int		i, inum;
6243 	p_nxge_intr_t	intrp;
6244 
6245 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs"));
6246 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6247 	if (!intrp->intr_registered) {
6248 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6249 		    "<== nxge_remove_intrs: interrupts not registered"));
6250 		return;
6251 	}
6252 
6253 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs:advanced"));
6254 
6255 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6256 		(void) ddi_intr_block_disable(intrp->htable,
6257 		    intrp->intr_added);
6258 	} else {
6259 		for (i = 0; i < intrp->intr_added; i++) {
6260 			(void) ddi_intr_disable(intrp->htable[i]);
6261 		}
6262 	}
6263 
6264 	for (inum = 0; inum < intrp->intr_added; inum++) {
6265 		if (intrp->htable[inum]) {
6266 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
6267 		}
6268 	}
6269 
6270 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
6271 		if (intrp->htable[inum]) {
6272 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6273 			    "nxge_remove_intrs: ddi_intr_free inum %d "
6274 			    "msi_intx_cnt %d intr_added %d",
6275 			    inum,
6276 			    intrp->msi_intx_cnt,
6277 			    intrp->intr_added));
6278 
6279 			(void) ddi_intr_free(intrp->htable[inum]);
6280 		}
6281 	}
6282 
6283 	kmem_free(intrp->htable, intrp->intr_size);
6284 	intrp->intr_registered = B_FALSE;
6285 	intrp->intr_enabled = B_FALSE;
6286 	intrp->msi_intx_cnt = 0;
6287 	intrp->intr_added = 0;
6288 
6289 	(void) nxge_ldgv_uninit(nxgep);
6290 
6291 	(void) ddi_prop_remove(DDI_DEV_T_NONE, nxgep->dip,
6292 	    "#msix-request");
6293 
6294 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_intrs"));
6295 }
6296 
6297 /*ARGSUSED*/
6298 static void
6299 nxge_intrs_enable(p_nxge_t nxgep)
6300 {
6301 	p_nxge_intr_t	intrp;
6302 	int		i;
6303 	int		status;
6304 
6305 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable"));
6306 
6307 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6308 
6309 	if (!intrp->intr_registered) {
6310 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_intrs_enable: "
6311 		    "interrupts are not registered"));
6312 		return;
6313 	}
6314 
6315 	if (intrp->intr_enabled) {
6316 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6317 		    "<== nxge_intrs_enable: already enabled"));
6318 		return;
6319 	}
6320 
6321 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6322 		status = ddi_intr_block_enable(intrp->htable,
6323 		    intrp->intr_added);
6324 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6325 		    "block enable - status 0x%x total inums #%d\n",
6326 		    status, intrp->intr_added));
6327 	} else {
6328 		for (i = 0; i < intrp->intr_added; i++) {
6329 			status = ddi_intr_enable(intrp->htable[i]);
6330 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6331 			    "ddi_intr_enable:enable - status 0x%x "
6332 			    "total inums %d enable inum #%d\n",
6333 			    status, intrp->intr_added, i));
6334 			if (status == DDI_SUCCESS) {
6335 				intrp->intr_enabled = B_TRUE;
6336 			}
6337 		}
6338 	}
6339 
6340 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_enable"));
6341 }
6342 
6343 /*ARGSUSED*/
6344 static void
6345 nxge_intrs_disable(p_nxge_t nxgep)
6346 {
6347 	p_nxge_intr_t	intrp;
6348 	int		i;
6349 
6350 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_disable"));
6351 
6352 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6353 
6354 	if (!intrp->intr_registered) {
6355 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable: "
6356 		    "interrupts are not registered"));
6357 		return;
6358 	}
6359 
6360 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6361 		(void) ddi_intr_block_disable(intrp->htable,
6362 		    intrp->intr_added);
6363 	} else {
6364 		for (i = 0; i < intrp->intr_added; i++) {
6365 			(void) ddi_intr_disable(intrp->htable[i]);
6366 		}
6367 	}
6368 
6369 	intrp->intr_enabled = B_FALSE;
6370 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable"));
6371 }
6372 
6373 static nxge_status_t
6374 nxge_mac_register(p_nxge_t nxgep)
6375 {
6376 	mac_register_t *macp;
6377 	int		status;
6378 
6379 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_mac_register"));
6380 
6381 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
6382 		return (NXGE_ERROR);
6383 
6384 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
6385 	macp->m_driver = nxgep;
6386 	macp->m_dip = nxgep->dip;
6387 	macp->m_src_addr = nxgep->ouraddr.ether_addr_octet;
6388 	macp->m_callbacks = &nxge_m_callbacks;
6389 	macp->m_min_sdu = 0;
6390 	nxgep->mac.default_mtu = nxgep->mac.maxframesize -
6391 	    NXGE_EHEADER_VLAN_CRC;
6392 	macp->m_max_sdu = nxgep->mac.default_mtu;
6393 	macp->m_margin = VLAN_TAGSZ;
6394 	macp->m_priv_props = nxge_priv_props;
6395 	macp->m_priv_prop_count = NXGE_MAX_PRIV_PROPS;
6396 	macp->m_v12n = MAC_VIRT_HIO | MAC_VIRT_LEVEL1 | MAC_VIRT_SERIALIZE;
6397 
6398 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
6399 	    "==> nxge_mac_register: instance %d "
6400 	    "max_sdu %d margin %d maxframe %d (header %d)",
6401 	    nxgep->instance,
6402 	    macp->m_max_sdu, macp->m_margin,
6403 	    nxgep->mac.maxframesize,
6404 	    NXGE_EHEADER_VLAN_CRC));
6405 
6406 	status = mac_register(macp, &nxgep->mach);
6407 	mac_free(macp);
6408 
6409 	if (status != 0) {
6410 		cmn_err(CE_WARN,
6411 		    "!nxge_mac_register failed (status %d instance %d)",
6412 		    status, nxgep->instance);
6413 		return (NXGE_ERROR);
6414 	}
6415 
6416 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_mac_register success "
6417 	    "(instance %d)", nxgep->instance));
6418 
6419 	return (NXGE_OK);
6420 }
6421 
6422 void
6423 nxge_err_inject(p_nxge_t nxgep, queue_t *wq, mblk_t *mp)
6424 {
6425 	ssize_t		size;
6426 	mblk_t		*nmp;
6427 	uint8_t		blk_id;
6428 	uint8_t		chan;
6429 	uint32_t	err_id;
6430 	err_inject_t	*eip;
6431 
6432 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_err_inject"));
6433 
6434 	size = 1024;
6435 	nmp = mp->b_cont;
6436 	eip = (err_inject_t *)nmp->b_rptr;
6437 	blk_id = eip->blk_id;
6438 	err_id = eip->err_id;
6439 	chan = eip->chan;
6440 	cmn_err(CE_NOTE, "!blk_id = 0x%x\n", blk_id);
6441 	cmn_err(CE_NOTE, "!err_id = 0x%x\n", err_id);
6442 	cmn_err(CE_NOTE, "!chan = 0x%x\n", chan);
6443 	switch (blk_id) {
6444 	case MAC_BLK_ID:
6445 		break;
6446 	case TXMAC_BLK_ID:
6447 		break;
6448 	case RXMAC_BLK_ID:
6449 		break;
6450 	case MIF_BLK_ID:
6451 		break;
6452 	case IPP_BLK_ID:
6453 		nxge_ipp_inject_err(nxgep, err_id);
6454 		break;
6455 	case TXC_BLK_ID:
6456 		nxge_txc_inject_err(nxgep, err_id);
6457 		break;
6458 	case TXDMA_BLK_ID:
6459 		nxge_txdma_inject_err(nxgep, err_id, chan);
6460 		break;
6461 	case RXDMA_BLK_ID:
6462 		nxge_rxdma_inject_err(nxgep, err_id, chan);
6463 		break;
6464 	case ZCP_BLK_ID:
6465 		nxge_zcp_inject_err(nxgep, err_id);
6466 		break;
6467 	case ESPC_BLK_ID:
6468 		break;
6469 	case FFLP_BLK_ID:
6470 		break;
6471 	case PHY_BLK_ID:
6472 		break;
6473 	case ETHER_SERDES_BLK_ID:
6474 		break;
6475 	case PCIE_SERDES_BLK_ID:
6476 		break;
6477 	case VIR_BLK_ID:
6478 		break;
6479 	}
6480 
6481 	nmp->b_wptr = nmp->b_rptr + size;
6482 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "<== nxge_err_inject"));
6483 
6484 	miocack(wq, mp, (int)size, 0);
6485 }
6486 
6487 static int
6488 nxge_init_common_dev(p_nxge_t nxgep)
6489 {
6490 	p_nxge_hw_list_t	hw_p;
6491 	dev_info_t 		*p_dip;
6492 
6493 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_init_common_device"));
6494 
6495 	p_dip = nxgep->p_dip;
6496 	MUTEX_ENTER(&nxge_common_lock);
6497 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6498 	    "==> nxge_init_common_dev:func # %d",
6499 	    nxgep->function_num));
6500 	/*
6501 	 * Loop through existing per neptune hardware list.
6502 	 */
6503 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6504 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6505 		    "==> nxge_init_common_device:func # %d "
6506 		    "hw_p $%p parent dip $%p",
6507 		    nxgep->function_num,
6508 		    hw_p,
6509 		    p_dip));
6510 		if (hw_p->parent_devp == p_dip) {
6511 			nxgep->nxge_hw_p = hw_p;
6512 			hw_p->ndevs++;
6513 			hw_p->nxge_p[nxgep->function_num] = nxgep;
6514 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6515 			    "==> nxge_init_common_device:func # %d "
6516 			    "hw_p $%p parent dip $%p "
6517 			    "ndevs %d (found)",
6518 			    nxgep->function_num,
6519 			    hw_p,
6520 			    p_dip,
6521 			    hw_p->ndevs));
6522 			break;
6523 		}
6524 	}
6525 
6526 	if (hw_p == NULL) {
6527 
6528 		char **prop_val;
6529 		uint_t prop_len;
6530 		int i;
6531 
6532 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6533 		    "==> nxge_init_common_device:func # %d "
6534 		    "parent dip $%p (new)",
6535 		    nxgep->function_num,
6536 		    p_dip));
6537 		hw_p = kmem_zalloc(sizeof (nxge_hw_list_t), KM_SLEEP);
6538 		hw_p->parent_devp = p_dip;
6539 		hw_p->magic = NXGE_NEPTUNE_MAGIC;
6540 		nxgep->nxge_hw_p = hw_p;
6541 		hw_p->ndevs++;
6542 		hw_p->nxge_p[nxgep->function_num] = nxgep;
6543 		hw_p->next = nxge_hw_list;
6544 		if (nxgep->niu_type == N2_NIU) {
6545 			hw_p->niu_type = N2_NIU;
6546 			hw_p->platform_type = P_NEPTUNE_NIU;
6547 		} else {
6548 			hw_p->niu_type = NIU_TYPE_NONE;
6549 			hw_p->platform_type = P_NEPTUNE_NONE;
6550 		}
6551 
6552 		MUTEX_INIT(&hw_p->nxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
6553 		MUTEX_INIT(&hw_p->nxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
6554 		MUTEX_INIT(&hw_p->nxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
6555 		MUTEX_INIT(&hw_p->nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
6556 
6557 		nxge_hw_list = hw_p;
6558 
6559 		if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, nxgep->dip, 0,
6560 		    "compatible", &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
6561 			for (i = 0; i < prop_len; i++) {
6562 				if ((strcmp((caddr_t)prop_val[i],
6563 				    NXGE_ROCK_COMPATIBLE) == 0)) {
6564 					hw_p->platform_type = P_NEPTUNE_ROCK;
6565 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6566 					    "ROCK hw_p->platform_type %d",
6567 					    hw_p->platform_type));
6568 					break;
6569 				}
6570 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6571 				    "nxge_init_common_dev: read compatible"
6572 				    " property[%d] val[%s]",
6573 				    i, (caddr_t)prop_val[i]));
6574 			}
6575 		}
6576 
6577 		ddi_prop_free(prop_val);
6578 
6579 		(void) nxge_scan_ports_phy(nxgep, nxge_hw_list);
6580 	}
6581 
6582 	MUTEX_EXIT(&nxge_common_lock);
6583 
6584 	nxgep->platform_type = hw_p->platform_type;
6585 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "nxgep->platform_type %d",
6586 	    nxgep->platform_type));
6587 	if (nxgep->niu_type != N2_NIU) {
6588 		nxgep->niu_type = hw_p->niu_type;
6589 	}
6590 
6591 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6592 	    "==> nxge_init_common_device (nxge_hw_list) $%p",
6593 	    nxge_hw_list));
6594 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<== nxge_init_common_device"));
6595 
6596 	return (NXGE_OK);
6597 }
6598 
6599 static void
6600 nxge_uninit_common_dev(p_nxge_t nxgep)
6601 {
6602 	p_nxge_hw_list_t	hw_p, h_hw_p;
6603 	p_nxge_dma_pt_cfg_t	p_dma_cfgp;
6604 	p_nxge_hw_pt_cfg_t	p_cfgp;
6605 	dev_info_t 		*p_dip;
6606 
6607 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_uninit_common_device"));
6608 	if (nxgep->nxge_hw_p == NULL) {
6609 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6610 		    "<== nxge_uninit_common_device (no common)"));
6611 		return;
6612 	}
6613 
6614 	MUTEX_ENTER(&nxge_common_lock);
6615 	h_hw_p = nxge_hw_list;
6616 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6617 		p_dip = hw_p->parent_devp;
6618 		if (nxgep->nxge_hw_p == hw_p &&
6619 		    p_dip == nxgep->p_dip &&
6620 		    nxgep->nxge_hw_p->magic == NXGE_NEPTUNE_MAGIC &&
6621 		    hw_p->magic == NXGE_NEPTUNE_MAGIC) {
6622 
6623 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6624 			    "==> nxge_uninit_common_device:func # %d "
6625 			    "hw_p $%p parent dip $%p "
6626 			    "ndevs %d (found)",
6627 			    nxgep->function_num,
6628 			    hw_p,
6629 			    p_dip,
6630 			    hw_p->ndevs));
6631 
6632 			/*
6633 			 * Release the RDC table, a shared resoruce
6634 			 * of the nxge hardware.  The RDC table was
6635 			 * assigned to this instance of nxge in
6636 			 * nxge_use_cfg_dma_config().
6637 			 */
6638 			if (!isLDOMguest(nxgep)) {
6639 				p_dma_cfgp =
6640 				    (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
6641 				p_cfgp =
6642 				    (p_nxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
6643 				(void) nxge_fzc_rdc_tbl_unbind(nxgep,
6644 				    p_cfgp->def_mac_rxdma_grpid);
6645 
6646 				/* Cleanup any outstanding groups.  */
6647 				nxge_grp_cleanup(nxgep);
6648 			}
6649 
6650 			if (hw_p->ndevs) {
6651 				hw_p->ndevs--;
6652 			}
6653 			hw_p->nxge_p[nxgep->function_num] = NULL;
6654 			if (!hw_p->ndevs) {
6655 				MUTEX_DESTROY(&hw_p->nxge_vlan_lock);
6656 				MUTEX_DESTROY(&hw_p->nxge_tcam_lock);
6657 				MUTEX_DESTROY(&hw_p->nxge_cfg_lock);
6658 				MUTEX_DESTROY(&hw_p->nxge_mdio_lock);
6659 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6660 				    "==> nxge_uninit_common_device: "
6661 				    "func # %d "
6662 				    "hw_p $%p parent dip $%p "
6663 				    "ndevs %d (last)",
6664 				    nxgep->function_num,
6665 				    hw_p,
6666 				    p_dip,
6667 				    hw_p->ndevs));
6668 
6669 				nxge_hio_uninit(nxgep);
6670 
6671 				if (hw_p == nxge_hw_list) {
6672 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6673 					    "==> nxge_uninit_common_device:"
6674 					    "remove head func # %d "
6675 					    "hw_p $%p parent dip $%p "
6676 					    "ndevs %d (head)",
6677 					    nxgep->function_num,
6678 					    hw_p,
6679 					    p_dip,
6680 					    hw_p->ndevs));
6681 					nxge_hw_list = hw_p->next;
6682 				} else {
6683 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6684 					    "==> nxge_uninit_common_device:"
6685 					    "remove middle func # %d "
6686 					    "hw_p $%p parent dip $%p "
6687 					    "ndevs %d (middle)",
6688 					    nxgep->function_num,
6689 					    hw_p,
6690 					    p_dip,
6691 					    hw_p->ndevs));
6692 					h_hw_p->next = hw_p->next;
6693 				}
6694 
6695 				nxgep->nxge_hw_p = NULL;
6696 				KMEM_FREE(hw_p, sizeof (nxge_hw_list_t));
6697 			}
6698 			break;
6699 		} else {
6700 			h_hw_p = hw_p;
6701 		}
6702 	}
6703 
6704 	MUTEX_EXIT(&nxge_common_lock);
6705 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6706 	    "==> nxge_uninit_common_device (nxge_hw_list) $%p",
6707 	    nxge_hw_list));
6708 
6709 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<= nxge_uninit_common_device"));
6710 }
6711 
6712 /*
6713  * Determines the number of ports from the niu_type or the platform type.
6714  * Returns the number of ports, or returns zero on failure.
6715  */
6716 
6717 int
6718 nxge_get_nports(p_nxge_t nxgep)
6719 {
6720 	int	nports = 0;
6721 
6722 	switch (nxgep->niu_type) {
6723 	case N2_NIU:
6724 	case NEPTUNE_2_10GF:
6725 		nports = 2;
6726 		break;
6727 	case NEPTUNE_4_1GC:
6728 	case NEPTUNE_2_10GF_2_1GC:
6729 	case NEPTUNE_1_10GF_3_1GC:
6730 	case NEPTUNE_1_1GC_1_10GF_2_1GC:
6731 	case NEPTUNE_2_10GF_2_1GRF:
6732 		nports = 4;
6733 		break;
6734 	default:
6735 		switch (nxgep->platform_type) {
6736 		case P_NEPTUNE_NIU:
6737 		case P_NEPTUNE_ATLAS_2PORT:
6738 			nports = 2;
6739 			break;
6740 		case P_NEPTUNE_ATLAS_4PORT:
6741 		case P_NEPTUNE_MARAMBA_P0:
6742 		case P_NEPTUNE_MARAMBA_P1:
6743 		case P_NEPTUNE_ROCK:
6744 		case P_NEPTUNE_ALONSO:
6745 			nports = 4;
6746 			break;
6747 		default:
6748 			break;
6749 		}
6750 		break;
6751 	}
6752 
6753 	return (nports);
6754 }
6755 
6756 /*
6757  * The following two functions are to support
6758  * PSARC/2007/453 MSI-X interrupt limit override.
6759  */
6760 static int
6761 nxge_create_msi_property(p_nxge_t nxgep)
6762 {
6763 	int	nmsi;
6764 	extern	int ncpus;
6765 
6766 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==>nxge_create_msi_property"));
6767 
6768 	switch (nxgep->mac.portmode) {
6769 	case PORT_10G_COPPER:
6770 	case PORT_10G_FIBER:
6771 	case PORT_10G_TN1010:
6772 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6773 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6774 		/*
6775 		 * The maximum MSI-X requested will be 8.
6776 		 * If the # of CPUs is less than 8, we will request
6777 		 * # MSI-X based on the # of CPUs (default).
6778 		 */
6779 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6780 		    "==>nxge_create_msi_property (10G): nxge_msix_10g_intrs %d",
6781 		    nxge_msix_10g_intrs));
6782 		if ((nxge_msix_10g_intrs == 0) ||
6783 		    (nxge_msix_10g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6784 			nmsi = NXGE_MSIX_REQUEST_10G;
6785 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6786 			    "==>nxge_create_msi_property (10G): reset to 8"));
6787 		} else {
6788 			nmsi = nxge_msix_10g_intrs;
6789 		}
6790 
6791 		/*
6792 		 * If # of interrupts requested is 8 (default),
6793 		 * the checking of the number of cpus will be
6794 		 * be maintained.
6795 		 */
6796 		if ((nmsi == NXGE_MSIX_REQUEST_10G) &&
6797 		    (ncpus < nmsi)) {
6798 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6799 			    "==>nxge_create_msi_property (10G): reset to 8"));
6800 			nmsi = ncpus;
6801 		}
6802 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6803 		    "==>nxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
6804 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6805 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6806 		break;
6807 
6808 	default:
6809 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6810 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6811 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6812 		    "==>nxge_create_msi_property (1G): nxge_msix_1g_intrs %d",
6813 		    nxge_msix_1g_intrs));
6814 		if ((nxge_msix_1g_intrs == 0) ||
6815 		    (nxge_msix_1g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6816 			nmsi = NXGE_MSIX_REQUEST_1G;
6817 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6818 			    "==>nxge_create_msi_property (1G): reset to 2"));
6819 		} else {
6820 			nmsi = nxge_msix_1g_intrs;
6821 		}
6822 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6823 		    "==>nxge_create_msi_property(1G): exists 0x%x (nmsi %d)",
6824 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6825 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6826 		break;
6827 	}
6828 
6829 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<==nxge_create_msi_property"));
6830 	return (nmsi);
6831 }
6832 
6833 /* ARGSUSED */
6834 static int
6835 nxge_get_def_val(nxge_t *nxgep, mac_prop_id_t pr_num, uint_t pr_valsize,
6836     void *pr_val)
6837 {
6838 	int err = 0;
6839 	link_flowctrl_t fl;
6840 
6841 	switch (pr_num) {
6842 	case MAC_PROP_AUTONEG:
6843 		*(uint8_t *)pr_val = 1;
6844 		break;
6845 	case MAC_PROP_FLOWCTRL:
6846 		if (pr_valsize < sizeof (link_flowctrl_t))
6847 			return (EINVAL);
6848 		fl = LINK_FLOWCTRL_RX;
6849 		bcopy(&fl, pr_val, sizeof (fl));
6850 		break;
6851 	case MAC_PROP_ADV_1000FDX_CAP:
6852 	case MAC_PROP_EN_1000FDX_CAP:
6853 		*(uint8_t *)pr_val = 1;
6854 		break;
6855 	case MAC_PROP_ADV_100FDX_CAP:
6856 	case MAC_PROP_EN_100FDX_CAP:
6857 		*(uint8_t *)pr_val = 1;
6858 		break;
6859 	default:
6860 		err = ENOTSUP;
6861 		break;
6862 	}
6863 	return (err);
6864 }
6865 
6866 
6867 /*
6868  * The following is a software around for the Neptune hardware's
6869  * interrupt bugs; The Neptune hardware may generate spurious interrupts when
6870  * an interrupr handler is removed.
6871  */
6872 #define	NXGE_PCI_PORT_LOGIC_OFFSET	0x98
6873 #define	NXGE_PIM_RESET			(1ULL << 29)
6874 #define	NXGE_GLU_RESET			(1ULL << 30)
6875 #define	NXGE_NIU_RESET			(1ULL << 31)
6876 #define	NXGE_PCI_RESET_ALL		(NXGE_PIM_RESET |	\
6877 					NXGE_GLU_RESET |	\
6878 					NXGE_NIU_RESET)
6879 
6880 #define	NXGE_WAIT_QUITE_TIME		200000
6881 #define	NXGE_WAIT_QUITE_RETRY		40
6882 #define	NXGE_PCI_RESET_WAIT		1000000 /* one second */
6883 
6884 static void
6885 nxge_niu_peu_reset(p_nxge_t nxgep)
6886 {
6887 	uint32_t	rvalue;
6888 	p_nxge_hw_list_t hw_p;
6889 	p_nxge_t	fnxgep;
6890 	int		i, j;
6891 
6892 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_niu_peu_reset"));
6893 	if ((hw_p = nxgep->nxge_hw_p) == NULL) {
6894 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6895 		    "==> nxge_niu_peu_reset: NULL hardware pointer"));
6896 		return;
6897 	}
6898 
6899 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6900 	    "==> nxge_niu_peu_reset: flags 0x%x link timer id %d timer id %d",
6901 	    hw_p->flags, nxgep->nxge_link_poll_timerid,
6902 	    nxgep->nxge_timerid));
6903 
6904 	MUTEX_ENTER(&hw_p->nxge_cfg_lock);
6905 	/*
6906 	 * Make sure other instances from the same hardware
6907 	 * stop sending PIO and in quiescent state.
6908 	 */
6909 	for (i = 0; i < NXGE_MAX_PORTS; i++) {
6910 		fnxgep = hw_p->nxge_p[i];
6911 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6912 		    "==> nxge_niu_peu_reset: checking entry %d "
6913 		    "nxgep $%p", i, fnxgep));
6914 #ifdef	NXGE_DEBUG
6915 		if (fnxgep) {
6916 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6917 			    "==> nxge_niu_peu_reset: entry %d (function %d) "
6918 			    "link timer id %d hw timer id %d",
6919 			    i, fnxgep->function_num,
6920 			    fnxgep->nxge_link_poll_timerid,
6921 			    fnxgep->nxge_timerid));
6922 		}
6923 #endif
6924 		if (fnxgep && fnxgep != nxgep &&
6925 		    (fnxgep->nxge_timerid || fnxgep->nxge_link_poll_timerid)) {
6926 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6927 			    "==> nxge_niu_peu_reset: checking $%p "
6928 			    "(function %d) timer ids",
6929 			    fnxgep, fnxgep->function_num));
6930 			for (j = 0; j < NXGE_WAIT_QUITE_RETRY; j++) {
6931 				NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6932 				    "==> nxge_niu_peu_reset: waiting"));
6933 				NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6934 				if (!fnxgep->nxge_timerid &&
6935 				    !fnxgep->nxge_link_poll_timerid) {
6936 					break;
6937 				}
6938 			}
6939 			NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6940 			if (fnxgep->nxge_timerid ||
6941 			    fnxgep->nxge_link_poll_timerid) {
6942 				MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6943 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6944 				    "<== nxge_niu_peu_reset: cannot reset "
6945 				    "hardware (devices are still in use)"));
6946 				return;
6947 			}
6948 		}
6949 	}
6950 
6951 	if ((hw_p->flags & COMMON_RESET_NIU_PCI) != COMMON_RESET_NIU_PCI) {
6952 		hw_p->flags |= COMMON_RESET_NIU_PCI;
6953 		rvalue = pci_config_get32(nxgep->dev_regs->nxge_pciregh,
6954 		    NXGE_PCI_PORT_LOGIC_OFFSET);
6955 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6956 		    "nxge_niu_peu_reset: read offset 0x%x (%d) "
6957 		    "(data 0x%x)",
6958 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6959 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6960 		    rvalue));
6961 
6962 		rvalue |= NXGE_PCI_RESET_ALL;
6963 		pci_config_put32(nxgep->dev_regs->nxge_pciregh,
6964 		    NXGE_PCI_PORT_LOGIC_OFFSET, rvalue);
6965 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6966 		    "nxge_niu_peu_reset: RESETTING NIU: write NIU reset 0x%x",
6967 		    rvalue));
6968 
6969 		NXGE_DELAY(NXGE_PCI_RESET_WAIT);
6970 	}
6971 
6972 	MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6973 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_niu_peu_reset"));
6974 }
6975 
6976 static void
6977 nxge_set_pci_replay_timeout(p_nxge_t nxgep)
6978 {
6979 	p_dev_regs_t	dev_regs;
6980 	uint32_t	value;
6981 
6982 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_set_pci_replay_timeout"));
6983 
6984 	if (!nxge_set_replay_timer) {
6985 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6986 		    "==> nxge_set_pci_replay_timeout: will not change "
6987 		    "the timeout"));
6988 		return;
6989 	}
6990 
6991 	dev_regs = nxgep->dev_regs;
6992 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6993 	    "==> nxge_set_pci_replay_timeout: dev_regs 0x%p pcireg 0x%p",
6994 	    dev_regs, dev_regs->nxge_pciregh));
6995 
6996 	if (dev_regs == NULL || (dev_regs->nxge_pciregh == NULL)) {
6997 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6998 		    "==> nxge_set_pci_replay_timeout: NULL dev_regs $%p or "
6999 		    "no PCI handle",
7000 		    dev_regs));
7001 		return;
7002 	}
7003 	value = (pci_config_get32(dev_regs->nxge_pciregh,
7004 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET) |
7005 	    (nxge_replay_timeout << PCI_REPLAY_TIMEOUT_SHIFT));
7006 
7007 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7008 	    "nxge_set_pci_replay_timeout: replay timeout value before set 0x%x "
7009 	    "(timeout value to set 0x%x at offset 0x%x) value 0x%x",
7010 	    pci_config_get32(dev_regs->nxge_pciregh,
7011 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET), nxge_replay_timeout,
7012 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET, value));
7013 
7014 	pci_config_put32(dev_regs->nxge_pciregh, PCI_REPLAY_TIMEOUT_CFG_OFFSET,
7015 	    value);
7016 
7017 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7018 	    "nxge_set_pci_replay_timeout: replay timeout value after set 0x%x",
7019 	    pci_config_get32(dev_regs->nxge_pciregh,
7020 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET)));
7021 
7022 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_set_pci_replay_timeout"));
7023 }
7024 
7025 /*
7026  * quiesce(9E) entry point.
7027  *
7028  * This function is called when the system is single-threaded at high
7029  * PIL with preemption disabled. Therefore, this function must not be
7030  * blocked.
7031  *
7032  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
7033  * DDI_FAILURE indicates an error condition and should almost never happen.
7034  */
7035 static int
7036 nxge_quiesce(dev_info_t *dip)
7037 {
7038 	int instance = ddi_get_instance(dip);
7039 	p_nxge_t nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
7040 
7041 	if (nxgep == NULL)
7042 		return (DDI_FAILURE);
7043 
7044 	/* Turn off debugging */
7045 	nxge_debug_level = NO_DEBUG;
7046 	nxgep->nxge_debug_level = NO_DEBUG;
7047 	npi_debug_level = NO_DEBUG;
7048 
7049 	/*
7050 	 * Stop link monitor only when linkchkmod is interrupt based
7051 	 */
7052 	if (nxgep->mac.linkchkmode == LINKCHK_INTR) {
7053 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
7054 	}
7055 
7056 	(void) nxge_intr_hw_disable(nxgep);
7057 
7058 	/*
7059 	 * Reset the receive MAC side.
7060 	 */
7061 	(void) nxge_rx_mac_disable(nxgep);
7062 
7063 	/* Disable and soft reset the IPP */
7064 	if (!isLDOMguest(nxgep))
7065 		(void) nxge_ipp_disable(nxgep);
7066 
7067 	/*
7068 	 * Reset the transmit/receive DMA side.
7069 	 */
7070 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
7071 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
7072 
7073 	/*
7074 	 * Reset the transmit MAC side.
7075 	 */
7076 	(void) nxge_tx_mac_disable(nxgep);
7077 
7078 	return (DDI_SUCCESS);
7079 }
7080