xref: /illumos-gate/usr/src/uts/common/io/nxge/nxge_main.c (revision 257bdc55)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * SunOs MT STREAMS NIU/Neptune 10Gb Ethernet Device Driver.
28  */
29 #include	<sys/nxge/nxge_impl.h>
30 #include	<sys/nxge/nxge_hio.h>
31 #include	<sys/nxge/nxge_rxdma.h>
32 #include	<sys/pcie.h>
33 
34 uint32_t 	nxge_use_partition = 0;		/* debug partition flag */
35 uint32_t 	nxge_dma_obp_props_only = 1;	/* use obp published props */
36 uint32_t 	nxge_use_rdc_intr = 1;		/* debug to assign rdc intr */
37 /*
38  * PSARC/2007/453 MSI-X interrupt limit override
39  */
40 uint32_t	nxge_msi_enable = 2;
41 
42 /*
43  * Software workaround for a Neptune (PCI-E)
44  * hardware interrupt bug which the hardware
45  * may generate spurious interrupts after the
46  * device interrupt handler was removed. If this flag
47  * is enabled, the driver will reset the
48  * hardware when devices are being detached.
49  */
50 uint32_t	nxge_peu_reset_enable = 0;
51 
52 /*
53  * Software workaround for the hardware
54  * checksum bugs that affect packet transmission
55  * and receive:
56  *
57  * Usage of nxge_cksum_offload:
58  *
59  *  (1) nxge_cksum_offload = 0 (default):
60  *	- transmits packets:
61  *	  TCP: uses the hardware checksum feature.
62  *	  UDP: driver will compute the software checksum
63  *	       based on the partial checksum computed
64  *	       by the IP layer.
65  *	- receives packets
66  *	  TCP: marks packets checksum flags based on hardware result.
67  *	  UDP: will not mark checksum flags.
68  *
69  *  (2) nxge_cksum_offload = 1:
70  *	- transmit packets:
71  *	  TCP/UDP: uses the hardware checksum feature.
72  *	- receives packets
73  *	  TCP/UDP: marks packet checksum flags based on hardware result.
74  *
75  *  (3) nxge_cksum_offload = 2:
76  *	- The driver will not register its checksum capability.
77  *	  Checksum for both TCP and UDP will be computed
78  *	  by the stack.
79  *	- The software LSO is not allowed in this case.
80  *
81  *  (4) nxge_cksum_offload > 2:
82  *	- Will be treated as it is set to 2
83  *	  (stack will compute the checksum).
84  *
85  *  (5) If the hardware bug is fixed, this workaround
86  *	needs to be updated accordingly to reflect
87  *	the new hardware revision.
88  */
89 uint32_t	nxge_cksum_offload = 0;
90 
91 /*
92  * Globals: tunable parameters (/etc/system or adb)
93  *
94  */
95 uint32_t 	nxge_rbr_size = NXGE_RBR_RBB_DEFAULT;
96 uint32_t 	nxge_rbr_spare_size = 0;
97 uint32_t 	nxge_rcr_size = NXGE_RCR_DEFAULT;
98 uint32_t 	nxge_tx_ring_size = NXGE_TX_RING_DEFAULT;
99 boolean_t 	nxge_no_msg = B_TRUE;		/* control message display */
100 uint32_t 	nxge_no_link_notify = 0;	/* control DL_NOTIFY */
101 uint32_t 	nxge_bcopy_thresh = TX_BCOPY_MAX;
102 uint32_t 	nxge_dvma_thresh = TX_FASTDVMA_MIN;
103 uint32_t 	nxge_dma_stream_thresh = TX_STREAM_MIN;
104 uint32_t	nxge_jumbo_mtu	= TX_JUMBO_MTU;
105 boolean_t	nxge_jumbo_enable = B_FALSE;
106 uint16_t	nxge_rcr_timeout = NXGE_RDC_RCR_TIMEOUT;
107 uint16_t	nxge_rcr_threshold = NXGE_RDC_RCR_THRESHOLD;
108 nxge_tx_mode_t	nxge_tx_scheme = NXGE_USE_SERIAL;
109 
110 /* MAX LSO size */
111 #define		NXGE_LSO_MAXLEN	65535
112 uint32_t	nxge_lso_max = NXGE_LSO_MAXLEN;
113 
114 
115 /*
116  * Add tunable to reduce the amount of time spent in the
117  * ISR doing Rx Processing.
118  */
119 uint32_t nxge_max_rx_pkts = 1024;
120 
121 /*
122  * Tunables to manage the receive buffer blocks.
123  *
124  * nxge_rx_threshold_hi: copy all buffers.
125  * nxge_rx_bcopy_size_type: receive buffer block size type.
126  * nxge_rx_threshold_lo: copy only up to tunable block size type.
127  */
128 nxge_rxbuf_threshold_t nxge_rx_threshold_hi = NXGE_RX_COPY_6;
129 nxge_rxbuf_type_t nxge_rx_buf_size_type = RCR_PKTBUFSZ_0;
130 nxge_rxbuf_threshold_t nxge_rx_threshold_lo = NXGE_RX_COPY_3;
131 
132 /* Use kmem_alloc() to allocate data buffers. */
133 #if defined(_BIG_ENDIAN)
134 uint32_t	nxge_use_kmem_alloc = 1;
135 #else
136 uint32_t	nxge_use_kmem_alloc = 0;
137 #endif
138 
139 rtrace_t npi_rtracebuf;
140 
141 /*
142  * The hardware sometimes fails to allow enough time for the link partner
143  * to send an acknowledgement for packets that the hardware sent to it. The
144  * hardware resends the packets earlier than it should be in those instances.
145  * This behavior caused some switches to acknowledge the wrong packets
146  * and it triggered the fatal error.
147  * This software workaround is to set the replay timer to a value
148  * suggested by the hardware team.
149  *
150  * PCI config space replay timer register:
151  *     The following replay timeout value is 0xc
152  *     for bit 14:18.
153  */
154 #define	PCI_REPLAY_TIMEOUT_CFG_OFFSET	0xb8
155 #define	PCI_REPLAY_TIMEOUT_SHIFT	14
156 
157 uint32_t	nxge_set_replay_timer = 1;
158 uint32_t	nxge_replay_timeout = 0xc;
159 
160 /*
161  * The transmit serialization sometimes causes
162  * longer sleep before calling the driver transmit
163  * function as it sleeps longer than it should.
164  * The performace group suggests that a time wait tunable
165  * can be used to set the maximum wait time when needed
166  * and the default is set to 1 tick.
167  */
168 uint32_t	nxge_tx_serial_maxsleep = 1;
169 
170 #if	defined(sun4v)
171 /*
172  * Hypervisor N2/NIU services information.
173  */
174 static hsvc_info_t niu_hsvc = {
175 	HSVC_REV_1, NULL, HSVC_GROUP_NIU, NIU_MAJOR_VER,
176 	NIU_MINOR_VER, "nxge"
177 };
178 
179 static int nxge_hsvc_register(p_nxge_t);
180 #endif
181 
182 /*
183  * Function Prototypes
184  */
185 static int nxge_attach(dev_info_t *, ddi_attach_cmd_t);
186 static int nxge_detach(dev_info_t *, ddi_detach_cmd_t);
187 static void nxge_unattach(p_nxge_t);
188 static int nxge_quiesce(dev_info_t *);
189 
190 #if NXGE_PROPERTY
191 static void nxge_remove_hard_properties(p_nxge_t);
192 #endif
193 
194 /*
195  * These two functions are required by nxge_hio.c
196  */
197 extern int nxge_m_mmac_remove(void *arg, int slot);
198 extern void nxge_grp_cleanup(p_nxge_t nxge);
199 
200 static nxge_status_t nxge_setup_system_dma_pages(p_nxge_t);
201 
202 static nxge_status_t nxge_setup_mutexes(p_nxge_t);
203 static void nxge_destroy_mutexes(p_nxge_t);
204 
205 static nxge_status_t nxge_map_regs(p_nxge_t nxgep);
206 static void nxge_unmap_regs(p_nxge_t nxgep);
207 #ifdef	NXGE_DEBUG
208 static void nxge_test_map_regs(p_nxge_t nxgep);
209 #endif
210 
211 static nxge_status_t nxge_add_intrs(p_nxge_t nxgep);
212 static void nxge_remove_intrs(p_nxge_t nxgep);
213 
214 static nxge_status_t nxge_add_intrs_adv(p_nxge_t nxgep);
215 static nxge_status_t nxge_add_intrs_adv_type(p_nxge_t, uint32_t);
216 static nxge_status_t nxge_add_intrs_adv_type_fix(p_nxge_t, uint32_t);
217 static void nxge_intrs_enable(p_nxge_t nxgep);
218 static void nxge_intrs_disable(p_nxge_t nxgep);
219 
220 static void nxge_suspend(p_nxge_t);
221 static nxge_status_t nxge_resume(p_nxge_t);
222 
223 static nxge_status_t nxge_setup_dev(p_nxge_t);
224 static void nxge_destroy_dev(p_nxge_t);
225 
226 static nxge_status_t nxge_alloc_mem_pool(p_nxge_t);
227 static void nxge_free_mem_pool(p_nxge_t);
228 
229 nxge_status_t nxge_alloc_rx_mem_pool(p_nxge_t);
230 static void nxge_free_rx_mem_pool(p_nxge_t);
231 
232 nxge_status_t nxge_alloc_tx_mem_pool(p_nxge_t);
233 static void nxge_free_tx_mem_pool(p_nxge_t);
234 
235 static nxge_status_t nxge_dma_mem_alloc(p_nxge_t, dma_method_t,
236 	struct ddi_dma_attr *,
237 	size_t, ddi_device_acc_attr_t *, uint_t,
238 	p_nxge_dma_common_t);
239 
240 static void nxge_dma_mem_free(p_nxge_dma_common_t);
241 static void nxge_dma_free_rx_data_buf(p_nxge_dma_common_t);
242 
243 static nxge_status_t nxge_alloc_rx_buf_dma(p_nxge_t, uint16_t,
244 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
245 static void nxge_free_rx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
246 
247 static nxge_status_t nxge_alloc_rx_cntl_dma(p_nxge_t, uint16_t,
248 	p_nxge_dma_common_t *, size_t);
249 static void nxge_free_rx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
250 
251 extern nxge_status_t nxge_alloc_tx_buf_dma(p_nxge_t, uint16_t,
252 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
253 static void nxge_free_tx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
254 
255 extern nxge_status_t nxge_alloc_tx_cntl_dma(p_nxge_t, uint16_t,
256 	p_nxge_dma_common_t *,
257 	size_t);
258 static void nxge_free_tx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
259 
260 static int nxge_init_common_dev(p_nxge_t);
261 static void nxge_uninit_common_dev(p_nxge_t);
262 extern int nxge_param_set_mac(p_nxge_t, queue_t *, mblk_t *,
263     char *, caddr_t);
264 
265 /*
266  * The next declarations are for the GLDv3 interface.
267  */
268 static int nxge_m_start(void *);
269 static void nxge_m_stop(void *);
270 static int nxge_m_multicst(void *, boolean_t, const uint8_t *);
271 static int nxge_m_promisc(void *, boolean_t);
272 static void nxge_m_ioctl(void *, queue_t *, mblk_t *);
273 static nxge_status_t nxge_mac_register(p_nxge_t);
274 static int nxge_altmac_set(p_nxge_t nxgep, uint8_t *mac_addr,
275 	int slot, int rdctbl, boolean_t usetbl);
276 void nxge_mmac_kstat_update(p_nxge_t nxgep, int slot,
277 	boolean_t factory);
278 #if defined(sun4v)
279 extern mblk_t *nxge_m_tx(void *arg, mblk_t *mp);
280 #endif
281 
282 static void nxge_m_getfactaddr(void *, uint_t, uint8_t *);
283 static	boolean_t nxge_m_getcapab(void *, mac_capab_t, void *);
284 static int nxge_m_setprop(void *, const char *, mac_prop_id_t,
285     uint_t, const void *);
286 static int nxge_m_getprop(void *, const char *, mac_prop_id_t,
287     uint_t, uint_t, void *, uint_t *);
288 static int nxge_set_priv_prop(nxge_t *, const char *, uint_t,
289     const void *);
290 static int nxge_get_priv_prop(nxge_t *, const char *, uint_t, uint_t,
291     void *, uint_t *);
292 static int nxge_get_def_val(nxge_t *, mac_prop_id_t, uint_t, void *);
293 static void nxge_fill_ring(void *, mac_ring_type_t, const int, const int,
294     mac_ring_info_t *, mac_ring_handle_t);
295 static void nxge_group_add_ring(mac_group_driver_t, mac_ring_driver_t,
296     mac_ring_type_t);
297 static void nxge_group_rem_ring(mac_group_driver_t, mac_ring_driver_t,
298     mac_ring_type_t);
299 
300 static void nxge_niu_peu_reset(p_nxge_t nxgep);
301 static void nxge_set_pci_replay_timeout(nxge_t *);
302 
303 mac_priv_prop_t nxge_priv_props[] = {
304 	{"_adv_10gfdx_cap", MAC_PROP_PERM_RW},
305 	{"_adv_pause_cap", MAC_PROP_PERM_RW},
306 	{"_function_number", MAC_PROP_PERM_READ},
307 	{"_fw_version", MAC_PROP_PERM_READ},
308 	{"_port_mode", MAC_PROP_PERM_READ},
309 	{"_hot_swap_phy", MAC_PROP_PERM_READ},
310 	{"_accept_jumbo", MAC_PROP_PERM_RW},
311 	{"_rxdma_intr_time", MAC_PROP_PERM_RW},
312 	{"_rxdma_intr_pkts", MAC_PROP_PERM_RW},
313 	{"_class_opt_ipv4_tcp", MAC_PROP_PERM_RW},
314 	{"_class_opt_ipv4_udp", MAC_PROP_PERM_RW},
315 	{"_class_opt_ipv4_ah", MAC_PROP_PERM_RW},
316 	{"_class_opt_ipv4_sctp", MAC_PROP_PERM_RW},
317 	{"_class_opt_ipv6_tcp", MAC_PROP_PERM_RW},
318 	{"_class_opt_ipv6_udp", MAC_PROP_PERM_RW},
319 	{"_class_opt_ipv6_ah", MAC_PROP_PERM_RW},
320 	{"_class_opt_ipv6_sctp", MAC_PROP_PERM_RW},
321 	{"_soft_lso_enable", MAC_PROP_PERM_RW}
322 };
323 
324 #define	NXGE_MAX_PRIV_PROPS	\
325 	(sizeof (nxge_priv_props)/sizeof (mac_priv_prop_t))
326 
327 #define	NXGE_NEPTUNE_MAGIC	0x4E584745UL
328 #define	MAX_DUMP_SZ 256
329 
330 #define	NXGE_M_CALLBACK_FLAGS	\
331 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP)
332 
333 mac_callbacks_t nxge_m_callbacks = {
334 	NXGE_M_CALLBACK_FLAGS,
335 	nxge_m_stat,
336 	nxge_m_start,
337 	nxge_m_stop,
338 	nxge_m_promisc,
339 	nxge_m_multicst,
340 	NULL,
341 	NULL,
342 	nxge_m_ioctl,
343 	nxge_m_getcapab,
344 	NULL,
345 	NULL,
346 	nxge_m_setprop,
347 	nxge_m_getprop
348 };
349 
350 void
351 nxge_err_inject(p_nxge_t, queue_t *, mblk_t *);
352 
353 /* PSARC/2007/453 MSI-X interrupt limit override. */
354 #define	NXGE_MSIX_REQUEST_10G	8
355 #define	NXGE_MSIX_REQUEST_1G	2
356 static int nxge_create_msi_property(p_nxge_t);
357 /*
358  * For applications that care about the
359  * latency, it was requested by PAE and the
360  * customers that the driver has tunables that
361  * allow the user to tune it to a higher number
362  * interrupts to spread the interrupts among
363  * multiple channels. The DDI framework limits
364  * the maximum number of MSI-X resources to allocate
365  * to 8 (ddi_msix_alloc_limit). If more than 8
366  * is set, ddi_msix_alloc_limit must be set accordingly.
367  * The default number of MSI interrupts are set to
368  * 8 for 10G and 2 for 1G link.
369  */
370 #define	NXGE_MSIX_MAX_ALLOWED	32
371 uint32_t nxge_msix_10g_intrs = NXGE_MSIX_REQUEST_10G;
372 uint32_t nxge_msix_1g_intrs = NXGE_MSIX_REQUEST_1G;
373 
374 /*
375  * These global variables control the message
376  * output.
377  */
378 out_dbgmsg_t nxge_dbgmsg_out = DBG_CONSOLE | STR_LOG;
379 uint64_t nxge_debug_level;
380 
381 /*
382  * This list contains the instance structures for the Neptune
383  * devices present in the system. The lock exists to guarantee
384  * mutually exclusive access to the list.
385  */
386 void 			*nxge_list = NULL;
387 
388 void			*nxge_hw_list = NULL;
389 nxge_os_mutex_t 	nxge_common_lock;
390 
391 extern uint64_t 	npi_debug_level;
392 
393 extern nxge_status_t	nxge_ldgv_init(p_nxge_t, int *, int *);
394 extern nxge_status_t	nxge_ldgv_init_n2(p_nxge_t, int *, int *);
395 extern nxge_status_t	nxge_ldgv_uninit(p_nxge_t);
396 extern nxge_status_t	nxge_intr_ldgv_init(p_nxge_t);
397 extern void		nxge_fm_init(p_nxge_t,
398 					ddi_device_acc_attr_t *,
399 					ddi_device_acc_attr_t *,
400 					ddi_dma_attr_t *);
401 extern void		nxge_fm_fini(p_nxge_t);
402 extern npi_status_t	npi_mac_altaddr_disable(npi_handle_t, uint8_t, uint8_t);
403 
404 /*
405  * Count used to maintain the number of buffers being used
406  * by Neptune instances and loaned up to the upper layers.
407  */
408 uint32_t nxge_mblks_pending = 0;
409 
410 /*
411  * Device register access attributes for PIO.
412  */
413 static ddi_device_acc_attr_t nxge_dev_reg_acc_attr = {
414 	DDI_DEVICE_ATTR_V0,
415 	DDI_STRUCTURE_LE_ACC,
416 	DDI_STRICTORDER_ACC,
417 };
418 
419 /*
420  * Device descriptor access attributes for DMA.
421  */
422 static ddi_device_acc_attr_t nxge_dev_desc_dma_acc_attr = {
423 	DDI_DEVICE_ATTR_V0,
424 	DDI_STRUCTURE_LE_ACC,
425 	DDI_STRICTORDER_ACC
426 };
427 
428 /*
429  * Device buffer access attributes for DMA.
430  */
431 static ddi_device_acc_attr_t nxge_dev_buf_dma_acc_attr = {
432 	DDI_DEVICE_ATTR_V0,
433 	DDI_STRUCTURE_BE_ACC,
434 	DDI_STRICTORDER_ACC
435 };
436 
437 ddi_dma_attr_t nxge_desc_dma_attr = {
438 	DMA_ATTR_V0,		/* version number. */
439 	0,			/* low address */
440 	0xffffffffffffffff,	/* high address */
441 	0xffffffffffffffff,	/* address counter max */
442 #ifndef NIU_PA_WORKAROUND
443 	0x100000,		/* alignment */
444 #else
445 	0x2000,
446 #endif
447 	0xfc00fc,		/* dlim_burstsizes */
448 	0x1,			/* minimum transfer size */
449 	0xffffffffffffffff,	/* maximum transfer size */
450 	0xffffffffffffffff,	/* maximum segment size */
451 	1,			/* scatter/gather list length */
452 	(unsigned int) 1,	/* granularity */
453 	0			/* attribute flags */
454 };
455 
456 ddi_dma_attr_t nxge_tx_dma_attr = {
457 	DMA_ATTR_V0,		/* version number. */
458 	0,			/* low address */
459 	0xffffffffffffffff,	/* high address */
460 	0xffffffffffffffff,	/* address counter max */
461 #if defined(_BIG_ENDIAN)
462 	0x2000,			/* alignment */
463 #else
464 	0x1000,			/* alignment */
465 #endif
466 	0xfc00fc,		/* dlim_burstsizes */
467 	0x1,			/* minimum transfer size */
468 	0xffffffffffffffff,	/* maximum transfer size */
469 	0xffffffffffffffff,	/* maximum segment size */
470 	5,			/* scatter/gather list length */
471 	(unsigned int) 1,	/* granularity */
472 	0			/* attribute flags */
473 };
474 
475 ddi_dma_attr_t nxge_rx_dma_attr = {
476 	DMA_ATTR_V0,		/* version number. */
477 	0,			/* low address */
478 	0xffffffffffffffff,	/* high address */
479 	0xffffffffffffffff,	/* address counter max */
480 	0x2000,			/* alignment */
481 	0xfc00fc,		/* dlim_burstsizes */
482 	0x1,			/* minimum transfer size */
483 	0xffffffffffffffff,	/* maximum transfer size */
484 	0xffffffffffffffff,	/* maximum segment size */
485 	1,			/* scatter/gather list length */
486 	(unsigned int) 1,	/* granularity */
487 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
488 };
489 
490 ddi_dma_lim_t nxge_dma_limits = {
491 	(uint_t)0,		/* dlim_addr_lo */
492 	(uint_t)0xffffffff,	/* dlim_addr_hi */
493 	(uint_t)0xffffffff,	/* dlim_cntr_max */
494 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
495 	0x1,			/* dlim_minxfer */
496 	1024			/* dlim_speed */
497 };
498 
499 dma_method_t nxge_force_dma = DVMA;
500 
501 /*
502  * dma chunk sizes.
503  *
504  * Try to allocate the largest possible size
505  * so that fewer number of dma chunks would be managed
506  */
507 #ifdef NIU_PA_WORKAROUND
508 size_t alloc_sizes [] = {0x2000};
509 #else
510 size_t alloc_sizes [] = {0x1000, 0x2000, 0x4000, 0x8000,
511 		0x10000, 0x20000, 0x40000, 0x80000,
512 		0x100000, 0x200000, 0x400000, 0x800000,
513 		0x1000000, 0x2000000, 0x4000000};
514 #endif
515 
516 /*
517  * Translate "dev_t" to a pointer to the associated "dev_info_t".
518  */
519 
520 extern void nxge_get_environs(nxge_t *);
521 
522 static int
523 nxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
524 {
525 	p_nxge_t	nxgep = NULL;
526 	int		instance;
527 	int		status = DDI_SUCCESS;
528 	uint8_t		portn;
529 	nxge_mmac_t	*mmac_info;
530 	p_nxge_param_t	param_arr;
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 	if (isLDOMguest(nxgep)) {
735 		uchar_t *prop_val;
736 		uint_t prop_len;
737 		uint32_t max_frame_size;
738 
739 		extern void nxge_get_logical_props(p_nxge_t);
740 
741 		nxgep->statsp->mac_stats.xcvr_inuse = LOGICAL_XCVR;
742 		nxgep->mac.portmode = PORT_LOGICAL;
743 		(void) ddi_prop_update_string(DDI_DEV_T_NONE, nxgep->dip,
744 		    "phy-type", "virtual transceiver");
745 
746 		nxgep->nports = 1;
747 		nxgep->board_ver = 0;	/* XXX What? */
748 
749 		/*
750 		 * local-mac-address property gives us info on which
751 		 * specific MAC address the Hybrid resource is associated
752 		 * with.
753 		 */
754 		if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, nxgep->dip, 0,
755 		    "local-mac-address", &prop_val,
756 		    &prop_len) != DDI_PROP_SUCCESS) {
757 			goto nxge_attach_fail5;
758 		}
759 		if (prop_len !=  ETHERADDRL) {
760 			ddi_prop_free(prop_val);
761 			goto nxge_attach_fail5;
762 		}
763 		ether_copy(prop_val, nxgep->hio_mac_addr);
764 		ddi_prop_free(prop_val);
765 		nxge_get_logical_props(nxgep);
766 
767 		/*
768 		 * Enable Jumbo property based on the "max-frame-size"
769 		 * property value.
770 		 */
771 		max_frame_size = ddi_prop_get_int(DDI_DEV_T_ANY,
772 		    nxgep->dip, DDI_PROP_DONTPASS | DDI_PROP_NOTPROM,
773 		    "max-frame-size", NXGE_MTU_DEFAULT_MAX);
774 		if ((max_frame_size > NXGE_MTU_DEFAULT_MAX) &&
775 		    (max_frame_size <= TX_JUMBO_MTU)) {
776 			param_arr = nxgep->param_arr;
777 
778 			param_arr[param_accept_jumbo].value = 1;
779 			nxgep->mac.is_jumbo = B_TRUE;
780 			nxgep->mac.maxframesize = (uint16_t)max_frame_size;
781 			nxgep->mac.default_mtu = nxgep->mac.maxframesize -
782 			    NXGE_EHEADER_VLAN_CRC;
783 		}
784 	} else {
785 		status = nxge_xcvr_find(nxgep);
786 
787 		if (status != NXGE_OK) {
788 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_attach: "
789 			    " Couldn't determine card type"
790 			    " .... exit "));
791 			goto nxge_attach_fail5;
792 		}
793 
794 		status = nxge_get_config_properties(nxgep);
795 
796 		if (status != NXGE_OK) {
797 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
798 			    "get_hw create failed"));
799 			goto nxge_attach_fail;
800 		}
801 	}
802 
803 	/*
804 	 * Setup the Kstats for the driver.
805 	 */
806 	nxge_setup_kstats(nxgep);
807 
808 	if (!isLDOMguest(nxgep))
809 		nxge_setup_param(nxgep);
810 
811 	status = nxge_setup_system_dma_pages(nxgep);
812 	if (status != NXGE_OK) {
813 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "set dma page failed"));
814 		goto nxge_attach_fail;
815 	}
816 
817 	nxge_hw_id_init(nxgep);
818 
819 	if (!isLDOMguest(nxgep))
820 		nxge_hw_init_niu_common(nxgep);
821 
822 	status = nxge_setup_mutexes(nxgep);
823 	if (status != NXGE_OK) {
824 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set mutex failed"));
825 		goto nxge_attach_fail;
826 	}
827 
828 #if defined(sun4v)
829 	if (isLDOMguest(nxgep)) {
830 		/* Find our VR & channel sets. */
831 		status = nxge_hio_vr_add(nxgep);
832 		if (status != NXGE_OK) {
833 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
834 			    "nxge_hio_vr_add failed"));
835 			(void) hsvc_unregister(&nxgep->niu_hsvc);
836 			nxgep->niu_hsvc_available = B_FALSE;
837 		}
838 		goto nxge_attach_exit;
839 	}
840 #endif
841 
842 	status = nxge_setup_dev(nxgep);
843 	if (status != DDI_SUCCESS) {
844 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set dev failed"));
845 		goto nxge_attach_fail;
846 	}
847 
848 	status = nxge_add_intrs(nxgep);
849 	if (status != DDI_SUCCESS) {
850 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "add_intr failed"));
851 		goto nxge_attach_fail;
852 	}
853 
854 	/* If a guest, register with vio_net instead. */
855 	if ((status = nxge_mac_register(nxgep)) != NXGE_OK) {
856 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
857 		    "unable to register to mac layer (%d)", status));
858 		goto nxge_attach_fail;
859 	}
860 
861 	mac_link_update(nxgep->mach, LINK_STATE_UNKNOWN);
862 
863 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
864 	    "registered to mac (instance %d)", instance));
865 
866 	/* nxge_link_monitor calls xcvr.check_link recursively */
867 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
868 
869 	goto nxge_attach_exit;
870 
871 nxge_attach_fail:
872 	nxge_unattach(nxgep);
873 	goto nxge_attach_fail1;
874 
875 nxge_attach_fail5:
876 	/*
877 	 * Tear down the ndd parameters setup.
878 	 */
879 	nxge_destroy_param(nxgep);
880 
881 	/*
882 	 * Tear down the kstat setup.
883 	 */
884 	nxge_destroy_kstats(nxgep);
885 
886 nxge_attach_fail4:
887 	if (nxgep->nxge_hw_p) {
888 		nxge_uninit_common_dev(nxgep);
889 		nxgep->nxge_hw_p = NULL;
890 	}
891 
892 nxge_attach_fail3:
893 	/*
894 	 * Unmap the register setup.
895 	 */
896 	nxge_unmap_regs(nxgep);
897 
898 	nxge_fm_fini(nxgep);
899 
900 nxge_attach_fail2:
901 	ddi_soft_state_free(nxge_list, nxgep->instance);
902 
903 nxge_attach_fail1:
904 	if (status != NXGE_OK)
905 		status = (NXGE_ERROR | NXGE_DDI_FAILED);
906 	nxgep = NULL;
907 
908 nxge_attach_exit:
909 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_attach status = 0x%08x",
910 	    status));
911 
912 	return (status);
913 }
914 
915 static int
916 nxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
917 {
918 	int 		status = DDI_SUCCESS;
919 	int 		instance;
920 	p_nxge_t 	nxgep = NULL;
921 
922 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_detach"));
923 	instance = ddi_get_instance(dip);
924 	nxgep = ddi_get_soft_state(nxge_list, instance);
925 	if (nxgep == NULL) {
926 		status = DDI_FAILURE;
927 		goto nxge_detach_exit;
928 	}
929 
930 	switch (cmd) {
931 	case DDI_DETACH:
932 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_DETACH"));
933 		break;
934 
935 	case DDI_PM_SUSPEND:
936 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
937 		nxgep->suspended = DDI_PM_SUSPEND;
938 		nxge_suspend(nxgep);
939 		break;
940 
941 	case DDI_SUSPEND:
942 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_SUSPEND"));
943 		if (nxgep->suspended != DDI_PM_SUSPEND) {
944 			nxgep->suspended = DDI_SUSPEND;
945 			nxge_suspend(nxgep);
946 		}
947 		break;
948 
949 	default:
950 		status = DDI_FAILURE;
951 	}
952 
953 	if (cmd != DDI_DETACH)
954 		goto nxge_detach_exit;
955 
956 	/*
957 	 * Stop the xcvr polling.
958 	 */
959 	nxgep->suspended = cmd;
960 
961 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
962 
963 	if (isLDOMguest(nxgep)) {
964 		if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
965 			nxge_m_stop((void *)nxgep);
966 		nxge_hio_unregister(nxgep);
967 	} else if (nxgep->mach && (status = mac_unregister(nxgep->mach)) != 0) {
968 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
969 		    "<== nxge_detach status = 0x%08X", status));
970 		return (DDI_FAILURE);
971 	}
972 
973 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
974 	    "<== nxge_detach (mac_unregister) status = 0x%08X", status));
975 
976 	nxge_unattach(nxgep);
977 	nxgep = NULL;
978 
979 nxge_detach_exit:
980 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_detach status = 0x%08X",
981 	    status));
982 
983 	return (status);
984 }
985 
986 static void
987 nxge_unattach(p_nxge_t nxgep)
988 {
989 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unattach"));
990 
991 	if (nxgep == NULL || nxgep->dev_regs == NULL) {
992 		return;
993 	}
994 
995 	nxgep->nxge_magic = 0;
996 
997 	if (nxgep->nxge_timerid) {
998 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
999 		nxgep->nxge_timerid = 0;
1000 	}
1001 
1002 	/*
1003 	 * If this flag is set, it will affect the Neptune
1004 	 * only.
1005 	 */
1006 	if ((nxgep->niu_type != N2_NIU) && nxge_peu_reset_enable) {
1007 		nxge_niu_peu_reset(nxgep);
1008 	}
1009 
1010 #if	defined(sun4v)
1011 	if (isLDOMguest(nxgep)) {
1012 		(void) nxge_hio_vr_release(nxgep);
1013 	}
1014 #endif
1015 
1016 	if (nxgep->nxge_hw_p) {
1017 		nxge_uninit_common_dev(nxgep);
1018 		nxgep->nxge_hw_p = NULL;
1019 	}
1020 
1021 #if	defined(sun4v)
1022 	if (nxgep->niu_type == N2_NIU && nxgep->niu_hsvc_available == B_TRUE) {
1023 		(void) hsvc_unregister(&nxgep->niu_hsvc);
1024 		nxgep->niu_hsvc_available = B_FALSE;
1025 	}
1026 #endif
1027 	/*
1028 	 * Stop any further interrupts.
1029 	 */
1030 	nxge_remove_intrs(nxgep);
1031 
1032 	/*
1033 	 * Stop the device and free resources.
1034 	 */
1035 	if (!isLDOMguest(nxgep)) {
1036 		nxge_destroy_dev(nxgep);
1037 	}
1038 
1039 	/*
1040 	 * Tear down the ndd parameters setup.
1041 	 */
1042 	nxge_destroy_param(nxgep);
1043 
1044 	/*
1045 	 * Tear down the kstat setup.
1046 	 */
1047 	nxge_destroy_kstats(nxgep);
1048 
1049 	/*
1050 	 * Destroy all mutexes.
1051 	 */
1052 	nxge_destroy_mutexes(nxgep);
1053 
1054 	/*
1055 	 * Remove the list of ndd parameters which
1056 	 * were setup during attach.
1057 	 */
1058 	if (nxgep->dip) {
1059 		NXGE_DEBUG_MSG((nxgep, OBP_CTL,
1060 		    " nxge_unattach: remove all properties"));
1061 
1062 		(void) ddi_prop_remove_all(nxgep->dip);
1063 	}
1064 
1065 #if NXGE_PROPERTY
1066 	nxge_remove_hard_properties(nxgep);
1067 #endif
1068 
1069 	/*
1070 	 * Unmap the register setup.
1071 	 */
1072 	nxge_unmap_regs(nxgep);
1073 
1074 	nxge_fm_fini(nxgep);
1075 
1076 	ddi_soft_state_free(nxge_list, nxgep->instance);
1077 
1078 	NXGE_DEBUG_MSG((NULL, DDI_CTL, "<== nxge_unattach"));
1079 }
1080 
1081 #if defined(sun4v)
1082 int
1083 nxge_hsvc_register(nxge_t *nxgep)
1084 {
1085 	nxge_status_t status;
1086 
1087 	if (nxgep->niu_type == N2_NIU) {
1088 		nxgep->niu_hsvc_available = B_FALSE;
1089 		bcopy(&niu_hsvc, &nxgep->niu_hsvc, sizeof (hsvc_info_t));
1090 		if ((status = hsvc_register(&nxgep->niu_hsvc,
1091 		    &nxgep->niu_min_ver)) != 0) {
1092 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1093 			    "nxge_attach: %s: cannot negotiate "
1094 			    "hypervisor services revision %d group: 0x%lx "
1095 			    "major: 0x%lx minor: 0x%lx errno: %d",
1096 			    niu_hsvc.hsvc_modname, niu_hsvc.hsvc_rev,
1097 			    niu_hsvc.hsvc_group, niu_hsvc.hsvc_major,
1098 			    niu_hsvc.hsvc_minor, status));
1099 			return (DDI_FAILURE);
1100 		}
1101 		nxgep->niu_hsvc_available = B_TRUE;
1102 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1103 		    "NIU Hypervisor service enabled"));
1104 	}
1105 
1106 	return (DDI_SUCCESS);
1107 }
1108 #endif
1109 
1110 static char n2_siu_name[] = "niu";
1111 
1112 static nxge_status_t
1113 nxge_map_regs(p_nxge_t nxgep)
1114 {
1115 	int		ddi_status = DDI_SUCCESS;
1116 	p_dev_regs_t 	dev_regs;
1117 	char		buf[MAXPATHLEN + 1];
1118 	char 		*devname;
1119 #ifdef	NXGE_DEBUG
1120 	char 		*sysname;
1121 #endif
1122 	off_t		regsize;
1123 	nxge_status_t	status = NXGE_OK;
1124 #if !defined(_BIG_ENDIAN)
1125 	off_t pci_offset;
1126 	uint16_t pcie_devctl;
1127 #endif
1128 
1129 	if (isLDOMguest(nxgep)) {
1130 		return (nxge_guest_regs_map(nxgep));
1131 	}
1132 
1133 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_map_regs"));
1134 	nxgep->dev_regs = NULL;
1135 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
1136 	dev_regs->nxge_regh = NULL;
1137 	dev_regs->nxge_pciregh = NULL;
1138 	dev_regs->nxge_msix_regh = NULL;
1139 	dev_regs->nxge_vir_regh = NULL;
1140 	dev_regs->nxge_vir2_regh = NULL;
1141 	nxgep->niu_type = NIU_TYPE_NONE;
1142 
1143 	devname = ddi_pathname(nxgep->dip, buf);
1144 	ASSERT(strlen(devname) > 0);
1145 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1146 	    "nxge_map_regs: pathname devname %s", devname));
1147 
1148 	/*
1149 	 * The driver is running on a N2-NIU system if devname is something
1150 	 * like "/niu@80/network@0"
1151 	 */
1152 	if (strstr(devname, n2_siu_name)) {
1153 		/* N2/NIU */
1154 		nxgep->niu_type = N2_NIU;
1155 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1156 		    "nxge_map_regs: N2/NIU devname %s", devname));
1157 		/* get function number */
1158 		nxgep->function_num =
1159 		    (devname[strlen(devname) -1] == '1' ? 1 : 0);
1160 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1161 		    "nxge_map_regs: N2/NIU function number %d",
1162 		    nxgep->function_num));
1163 	} else {
1164 		int		*prop_val;
1165 		uint_t 		prop_len;
1166 		uint8_t 	func_num;
1167 
1168 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, nxgep->dip,
1169 		    0, "reg",
1170 		    &prop_val, &prop_len) != DDI_PROP_SUCCESS) {
1171 			NXGE_DEBUG_MSG((nxgep, VPD_CTL,
1172 			    "Reg property not found"));
1173 			ddi_status = DDI_FAILURE;
1174 			goto nxge_map_regs_fail0;
1175 
1176 		} else {
1177 			func_num = (prop_val[0] >> 8) & 0x7;
1178 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1179 			    "Reg property found: fun # %d",
1180 			    func_num));
1181 			nxgep->function_num = func_num;
1182 			if (isLDOMguest(nxgep)) {
1183 				nxgep->function_num /= 2;
1184 				return (NXGE_OK);
1185 			}
1186 			ddi_prop_free(prop_val);
1187 		}
1188 	}
1189 
1190 	switch (nxgep->niu_type) {
1191 	default:
1192 		(void) ddi_dev_regsize(nxgep->dip, 0, &regsize);
1193 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1194 		    "nxge_map_regs: pci config size 0x%x", regsize));
1195 
1196 		ddi_status = ddi_regs_map_setup(nxgep->dip, 0,
1197 		    (caddr_t *)&(dev_regs->nxge_pciregp), 0, 0,
1198 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_pciregh);
1199 		if (ddi_status != DDI_SUCCESS) {
1200 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1201 			    "ddi_map_regs, nxge bus config regs failed"));
1202 			goto nxge_map_regs_fail0;
1203 		}
1204 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1205 		    "nxge_map_reg: PCI config addr 0x%0llx "
1206 		    " handle 0x%0llx", dev_regs->nxge_pciregp,
1207 		    dev_regs->nxge_pciregh));
1208 			/*
1209 			 * IMP IMP
1210 			 * workaround  for bit swapping bug in HW
1211 			 * which ends up in no-snoop = yes
1212 			 * resulting, in DMA not synched properly
1213 			 */
1214 #if !defined(_BIG_ENDIAN)
1215 		/* workarounds for x86 systems */
1216 		pci_offset = 0x80 + PCIE_DEVCTL;
1217 		pcie_devctl = 0x0;
1218 		pcie_devctl &= PCIE_DEVCTL_ENABLE_NO_SNOOP;
1219 		pcie_devctl |= PCIE_DEVCTL_RO_EN;
1220 		pci_config_put16(dev_regs->nxge_pciregh, pci_offset,
1221 		    pcie_devctl);
1222 #endif
1223 
1224 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1225 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1226 		    "nxge_map_regs: pio size 0x%x", regsize));
1227 		/* set up the device mapped register */
1228 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1229 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1230 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1231 		if (ddi_status != DDI_SUCCESS) {
1232 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1233 			    "ddi_map_regs for Neptune global reg failed"));
1234 			goto nxge_map_regs_fail1;
1235 		}
1236 
1237 		/* set up the msi/msi-x mapped register */
1238 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1239 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1240 		    "nxge_map_regs: msix size 0x%x", regsize));
1241 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1242 		    (caddr_t *)&(dev_regs->nxge_msix_regp), 0, 0,
1243 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_msix_regh);
1244 		if (ddi_status != DDI_SUCCESS) {
1245 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1246 			    "ddi_map_regs for msi reg failed"));
1247 			goto nxge_map_regs_fail2;
1248 		}
1249 
1250 		/* set up the vio region mapped register */
1251 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1252 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1253 		    "nxge_map_regs: vio size 0x%x", regsize));
1254 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1255 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1256 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1257 
1258 		if (ddi_status != DDI_SUCCESS) {
1259 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1260 			    "ddi_map_regs for nxge vio reg failed"));
1261 			goto nxge_map_regs_fail3;
1262 		}
1263 		nxgep->dev_regs = dev_regs;
1264 
1265 		NPI_PCI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_pciregh);
1266 		NPI_PCI_ADD_HANDLE_SET(nxgep,
1267 		    (npi_reg_ptr_t)dev_regs->nxge_pciregp);
1268 		NPI_MSI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_msix_regh);
1269 		NPI_MSI_ADD_HANDLE_SET(nxgep,
1270 		    (npi_reg_ptr_t)dev_regs->nxge_msix_regp);
1271 
1272 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1273 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1274 
1275 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1276 		NPI_REG_ADD_HANDLE_SET(nxgep,
1277 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1278 
1279 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1280 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1281 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1282 
1283 		break;
1284 
1285 	case N2_NIU:
1286 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "ddi_map_regs, NIU"));
1287 		/*
1288 		 * Set up the device mapped register (FWARC 2006/556)
1289 		 * (changed back to 1: reg starts at 1!)
1290 		 */
1291 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1292 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1293 		    "nxge_map_regs: dev size 0x%x", regsize));
1294 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1295 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1296 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1297 
1298 		if (ddi_status != DDI_SUCCESS) {
1299 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1300 			    "ddi_map_regs for N2/NIU, global reg failed "));
1301 			goto nxge_map_regs_fail1;
1302 		}
1303 
1304 		/* set up the first vio region mapped register */
1305 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1306 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1307 		    "nxge_map_regs: vio (1) size 0x%x", regsize));
1308 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1309 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1310 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1311 
1312 		if (ddi_status != DDI_SUCCESS) {
1313 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1314 			    "ddi_map_regs for nxge vio reg failed"));
1315 			goto nxge_map_regs_fail2;
1316 		}
1317 		/* set up the second vio region mapped register */
1318 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1319 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1320 		    "nxge_map_regs: vio (3) size 0x%x", regsize));
1321 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1322 		    (caddr_t *)&(dev_regs->nxge_vir2_regp), 0, 0,
1323 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir2_regh);
1324 
1325 		if (ddi_status != DDI_SUCCESS) {
1326 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1327 			    "ddi_map_regs for nxge vio2 reg failed"));
1328 			goto nxge_map_regs_fail3;
1329 		}
1330 		nxgep->dev_regs = dev_regs;
1331 
1332 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1333 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1334 
1335 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1336 		NPI_REG_ADD_HANDLE_SET(nxgep,
1337 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1338 
1339 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1340 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1341 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1342 
1343 		NPI_V2REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir2_regh);
1344 		NPI_V2REG_ADD_HANDLE_SET(nxgep,
1345 		    (npi_reg_ptr_t)dev_regs->nxge_vir2_regp);
1346 
1347 		break;
1348 	}
1349 
1350 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "nxge_map_reg: hardware addr 0x%0llx "
1351 	    " handle 0x%0llx", dev_regs->nxge_regp, dev_regs->nxge_regh));
1352 
1353 	goto nxge_map_regs_exit;
1354 nxge_map_regs_fail3:
1355 	if (dev_regs->nxge_msix_regh) {
1356 		ddi_regs_map_free(&dev_regs->nxge_msix_regh);
1357 	}
1358 	if (dev_regs->nxge_vir_regh) {
1359 		ddi_regs_map_free(&dev_regs->nxge_regh);
1360 	}
1361 nxge_map_regs_fail2:
1362 	if (dev_regs->nxge_regh) {
1363 		ddi_regs_map_free(&dev_regs->nxge_regh);
1364 	}
1365 nxge_map_regs_fail1:
1366 	if (dev_regs->nxge_pciregh) {
1367 		ddi_regs_map_free(&dev_regs->nxge_pciregh);
1368 	}
1369 nxge_map_regs_fail0:
1370 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Freeing register set memory"));
1371 	kmem_free(dev_regs, sizeof (dev_regs_t));
1372 
1373 nxge_map_regs_exit:
1374 	if (ddi_status != DDI_SUCCESS)
1375 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1376 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_map_regs"));
1377 	return (status);
1378 }
1379 
1380 static void
1381 nxge_unmap_regs(p_nxge_t nxgep)
1382 {
1383 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unmap_regs"));
1384 
1385 	if (isLDOMguest(nxgep)) {
1386 		nxge_guest_regs_map_free(nxgep);
1387 		return;
1388 	}
1389 
1390 	if (nxgep->dev_regs) {
1391 		if (nxgep->dev_regs->nxge_pciregh) {
1392 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1393 			    "==> nxge_unmap_regs: bus"));
1394 			ddi_regs_map_free(&nxgep->dev_regs->nxge_pciregh);
1395 			nxgep->dev_regs->nxge_pciregh = NULL;
1396 		}
1397 		if (nxgep->dev_regs->nxge_regh) {
1398 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1399 			    "==> nxge_unmap_regs: device registers"));
1400 			ddi_regs_map_free(&nxgep->dev_regs->nxge_regh);
1401 			nxgep->dev_regs->nxge_regh = NULL;
1402 		}
1403 		if (nxgep->dev_regs->nxge_msix_regh) {
1404 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1405 			    "==> nxge_unmap_regs: device interrupts"));
1406 			ddi_regs_map_free(&nxgep->dev_regs->nxge_msix_regh);
1407 			nxgep->dev_regs->nxge_msix_regh = NULL;
1408 		}
1409 		if (nxgep->dev_regs->nxge_vir_regh) {
1410 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1411 			    "==> nxge_unmap_regs: vio region"));
1412 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir_regh);
1413 			nxgep->dev_regs->nxge_vir_regh = NULL;
1414 		}
1415 		if (nxgep->dev_regs->nxge_vir2_regh) {
1416 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1417 			    "==> nxge_unmap_regs: vio2 region"));
1418 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir2_regh);
1419 			nxgep->dev_regs->nxge_vir2_regh = NULL;
1420 		}
1421 
1422 		kmem_free(nxgep->dev_regs, sizeof (dev_regs_t));
1423 		nxgep->dev_regs = NULL;
1424 	}
1425 
1426 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_unmap_regs"));
1427 }
1428 
1429 static nxge_status_t
1430 nxge_setup_mutexes(p_nxge_t nxgep)
1431 {
1432 	int ddi_status = DDI_SUCCESS;
1433 	nxge_status_t status = NXGE_OK;
1434 	nxge_classify_t *classify_ptr;
1435 	int partition;
1436 
1437 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_mutexes"));
1438 
1439 	/*
1440 	 * Get the interrupt cookie so the mutexes can be
1441 	 * Initialized.
1442 	 */
1443 	if (isLDOMguest(nxgep)) {
1444 		nxgep->interrupt_cookie = 0;
1445 	} else {
1446 		ddi_status = ddi_get_iblock_cookie(nxgep->dip, 0,
1447 		    &nxgep->interrupt_cookie);
1448 
1449 		if (ddi_status != DDI_SUCCESS) {
1450 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1451 			    "<== nxge_setup_mutexes: failed 0x%x",
1452 			    ddi_status));
1453 			goto nxge_setup_mutexes_exit;
1454 		}
1455 	}
1456 
1457 	cv_init(&nxgep->poll_cv, NULL, CV_DRIVER, NULL);
1458 	MUTEX_INIT(&nxgep->poll_lock, NULL,
1459 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1460 
1461 	/*
1462 	 * Initialize mutexes for this device.
1463 	 */
1464 	MUTEX_INIT(nxgep->genlock, NULL,
1465 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1466 	MUTEX_INIT(&nxgep->ouraddr_lock, NULL,
1467 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1468 	MUTEX_INIT(&nxgep->mif_lock, NULL,
1469 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1470 	MUTEX_INIT(&nxgep->group_lock, NULL,
1471 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1472 	RW_INIT(&nxgep->filter_lock, NULL,
1473 	    RW_DRIVER, (void *)nxgep->interrupt_cookie);
1474 
1475 	classify_ptr = &nxgep->classifier;
1476 		/*
1477 		 * FFLP Mutexes are never used in interrupt context
1478 		 * as fflp operation can take very long time to
1479 		 * complete and hence not suitable to invoke from interrupt
1480 		 * handlers.
1481 		 */
1482 	MUTEX_INIT(&classify_ptr->tcam_lock, NULL,
1483 	    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1484 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1485 		MUTEX_INIT(&classify_ptr->fcram_lock, NULL,
1486 		    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1487 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1488 			MUTEX_INIT(&classify_ptr->hash_lock[partition], NULL,
1489 			    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1490 		}
1491 	}
1492 
1493 nxge_setup_mutexes_exit:
1494 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1495 	    "<== nxge_setup_mutexes status = %x", status));
1496 
1497 	if (ddi_status != DDI_SUCCESS)
1498 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1499 
1500 	return (status);
1501 }
1502 
1503 static void
1504 nxge_destroy_mutexes(p_nxge_t nxgep)
1505 {
1506 	int partition;
1507 	nxge_classify_t *classify_ptr;
1508 
1509 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_mutexes"));
1510 	RW_DESTROY(&nxgep->filter_lock);
1511 	MUTEX_DESTROY(&nxgep->group_lock);
1512 	MUTEX_DESTROY(&nxgep->mif_lock);
1513 	MUTEX_DESTROY(&nxgep->ouraddr_lock);
1514 	MUTEX_DESTROY(nxgep->genlock);
1515 
1516 	classify_ptr = &nxgep->classifier;
1517 	MUTEX_DESTROY(&classify_ptr->tcam_lock);
1518 
1519 	/* Destroy all polling resources. */
1520 	MUTEX_DESTROY(&nxgep->poll_lock);
1521 	cv_destroy(&nxgep->poll_cv);
1522 
1523 	/* free data structures, based on HW type */
1524 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1525 		MUTEX_DESTROY(&classify_ptr->fcram_lock);
1526 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1527 			MUTEX_DESTROY(&classify_ptr->hash_lock[partition]);
1528 		}
1529 	}
1530 
1531 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_mutexes"));
1532 }
1533 
1534 nxge_status_t
1535 nxge_init(p_nxge_t nxgep)
1536 {
1537 	nxge_status_t status = NXGE_OK;
1538 
1539 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_init"));
1540 
1541 	if (nxgep->drv_state & STATE_HW_INITIALIZED) {
1542 		return (status);
1543 	}
1544 
1545 	/*
1546 	 * Allocate system memory for the receive/transmit buffer blocks
1547 	 * and receive/transmit descriptor rings.
1548 	 */
1549 	status = nxge_alloc_mem_pool(nxgep);
1550 	if (status != NXGE_OK) {
1551 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "alloc mem failed\n"));
1552 		goto nxge_init_fail1;
1553 	}
1554 
1555 	if (!isLDOMguest(nxgep)) {
1556 		/*
1557 		 * Initialize and enable the TXC registers.
1558 		 * (Globally enable the Tx controller,
1559 		 *  enable the port, configure the dma channel bitmap,
1560 		 *  configure the max burst size).
1561 		 */
1562 		status = nxge_txc_init(nxgep);
1563 		if (status != NXGE_OK) {
1564 			NXGE_ERROR_MSG((nxgep,
1565 			    NXGE_ERR_CTL, "init txc failed\n"));
1566 			goto nxge_init_fail2;
1567 		}
1568 	}
1569 
1570 	/*
1571 	 * Initialize and enable TXDMA channels.
1572 	 */
1573 	status = nxge_init_txdma_channels(nxgep);
1574 	if (status != NXGE_OK) {
1575 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init txdma failed\n"));
1576 		goto nxge_init_fail3;
1577 	}
1578 
1579 	/*
1580 	 * Initialize and enable RXDMA channels.
1581 	 */
1582 	status = nxge_init_rxdma_channels(nxgep);
1583 	if (status != NXGE_OK) {
1584 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init rxdma failed\n"));
1585 		goto nxge_init_fail4;
1586 	}
1587 
1588 	/*
1589 	 * The guest domain is now done.
1590 	 */
1591 	if (isLDOMguest(nxgep)) {
1592 		nxgep->drv_state |= STATE_HW_INITIALIZED;
1593 		goto nxge_init_exit;
1594 	}
1595 
1596 	/*
1597 	 * Initialize TCAM and FCRAM (Neptune).
1598 	 */
1599 	status = nxge_classify_init(nxgep);
1600 	if (status != NXGE_OK) {
1601 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init classify failed\n"));
1602 		goto nxge_init_fail5;
1603 	}
1604 
1605 	/*
1606 	 * Initialize ZCP
1607 	 */
1608 	status = nxge_zcp_init(nxgep);
1609 	if (status != NXGE_OK) {
1610 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init ZCP failed\n"));
1611 		goto nxge_init_fail5;
1612 	}
1613 
1614 	/*
1615 	 * Initialize IPP.
1616 	 */
1617 	status = nxge_ipp_init(nxgep);
1618 	if (status != NXGE_OK) {
1619 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init IPP failed\n"));
1620 		goto nxge_init_fail5;
1621 	}
1622 
1623 	/*
1624 	 * Initialize the MAC block.
1625 	 */
1626 	status = nxge_mac_init(nxgep);
1627 	if (status != NXGE_OK) {
1628 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init MAC failed\n"));
1629 		goto nxge_init_fail5;
1630 	}
1631 
1632 	nxge_intrs_enable(nxgep); /* XXX What changes do I need to make here? */
1633 
1634 	/*
1635 	 * Enable hardware interrupts.
1636 	 */
1637 	nxge_intr_hw_enable(nxgep);
1638 	nxgep->drv_state |= STATE_HW_INITIALIZED;
1639 
1640 	goto nxge_init_exit;
1641 
1642 nxge_init_fail5:
1643 	nxge_uninit_rxdma_channels(nxgep);
1644 nxge_init_fail4:
1645 	nxge_uninit_txdma_channels(nxgep);
1646 nxge_init_fail3:
1647 	if (!isLDOMguest(nxgep)) {
1648 		(void) nxge_txc_uninit(nxgep);
1649 	}
1650 nxge_init_fail2:
1651 	nxge_free_mem_pool(nxgep);
1652 nxge_init_fail1:
1653 	NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1654 	    "<== nxge_init status (failed) = 0x%08x", status));
1655 	return (status);
1656 
1657 nxge_init_exit:
1658 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_init status = 0x%08x",
1659 	    status));
1660 	return (status);
1661 }
1662 
1663 
1664 timeout_id_t
1665 nxge_start_timer(p_nxge_t nxgep, fptrv_t func, int msec)
1666 {
1667 	if ((nxgep->suspended == 0) || (nxgep->suspended == DDI_RESUME)) {
1668 		return (timeout(func, (caddr_t)nxgep,
1669 		    drv_usectohz(1000 * msec)));
1670 	}
1671 	return (NULL);
1672 }
1673 
1674 /*ARGSUSED*/
1675 void
1676 nxge_stop_timer(p_nxge_t nxgep, timeout_id_t timerid)
1677 {
1678 	if (timerid) {
1679 		(void) untimeout(timerid);
1680 	}
1681 }
1682 
1683 void
1684 nxge_uninit(p_nxge_t nxgep)
1685 {
1686 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_uninit"));
1687 
1688 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
1689 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1690 		    "==> nxge_uninit: not initialized"));
1691 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1692 		    "<== nxge_uninit"));
1693 		return;
1694 	}
1695 
1696 	/* stop timer */
1697 	if (nxgep->nxge_timerid) {
1698 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1699 		nxgep->nxge_timerid = 0;
1700 	}
1701 
1702 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
1703 	(void) nxge_intr_hw_disable(nxgep);
1704 
1705 	/*
1706 	 * Reset the receive MAC side.
1707 	 */
1708 	(void) nxge_rx_mac_disable(nxgep);
1709 
1710 	/* Disable and soft reset the IPP */
1711 	if (!isLDOMguest(nxgep))
1712 		(void) nxge_ipp_disable(nxgep);
1713 
1714 	/* Free classification resources */
1715 	(void) nxge_classify_uninit(nxgep);
1716 
1717 	/*
1718 	 * Reset the transmit/receive DMA side.
1719 	 */
1720 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
1721 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
1722 
1723 	nxge_uninit_txdma_channels(nxgep);
1724 	nxge_uninit_rxdma_channels(nxgep);
1725 
1726 	/*
1727 	 * Reset the transmit MAC side.
1728 	 */
1729 	(void) nxge_tx_mac_disable(nxgep);
1730 
1731 	nxge_free_mem_pool(nxgep);
1732 
1733 	/*
1734 	 * Start the timer if the reset flag is not set.
1735 	 * If this reset flag is set, the link monitor
1736 	 * will not be started in order to stop furthur bus
1737 	 * activities coming from this interface.
1738 	 * The driver will start the monitor function
1739 	 * if the interface was initialized again later.
1740 	 */
1741 	if (!nxge_peu_reset_enable) {
1742 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1743 	}
1744 
1745 	nxgep->drv_state &= ~STATE_HW_INITIALIZED;
1746 
1747 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_uninit: "
1748 	    "nxge_mblks_pending %d", nxge_mblks_pending));
1749 }
1750 
1751 void
1752 nxge_get64(p_nxge_t nxgep, p_mblk_t mp)
1753 {
1754 	uint64_t	reg;
1755 	uint64_t	regdata;
1756 	int		i, retry;
1757 
1758 	bcopy((char *)mp->b_rptr, (char *)&reg, sizeof (uint64_t));
1759 	regdata = 0;
1760 	retry = 1;
1761 
1762 	for (i = 0; i < retry; i++) {
1763 		NXGE_REG_RD64(nxgep->npi_handle, reg, &regdata);
1764 	}
1765 	bcopy((char *)&regdata, (char *)mp->b_rptr, sizeof (uint64_t));
1766 }
1767 
1768 void
1769 nxge_put64(p_nxge_t nxgep, p_mblk_t mp)
1770 {
1771 	uint64_t	reg;
1772 	uint64_t	buf[2];
1773 
1774 	bcopy((char *)mp->b_rptr, (char *)&buf[0], 2 * sizeof (uint64_t));
1775 	reg = buf[0];
1776 
1777 	NXGE_NPI_PIO_WRITE64(nxgep->npi_handle, reg, buf[1]);
1778 }
1779 
1780 
1781 nxge_os_mutex_t nxgedebuglock;
1782 int nxge_debug_init = 0;
1783 
1784 /*ARGSUSED*/
1785 /*VARARGS*/
1786 void
1787 nxge_debug_msg(p_nxge_t nxgep, uint64_t level, char *fmt, ...)
1788 {
1789 	char msg_buffer[1048];
1790 	char prefix_buffer[32];
1791 	int instance;
1792 	uint64_t debug_level;
1793 	int cmn_level = CE_CONT;
1794 	va_list ap;
1795 
1796 	if (nxgep && nxgep->nxge_debug_level != nxge_debug_level) {
1797 		/* In case a developer has changed nxge_debug_level. */
1798 		if (nxgep->nxge_debug_level != nxge_debug_level)
1799 			nxgep->nxge_debug_level = nxge_debug_level;
1800 	}
1801 
1802 	debug_level = (nxgep == NULL) ? nxge_debug_level :
1803 	    nxgep->nxge_debug_level;
1804 
1805 	if ((level & debug_level) ||
1806 	    (level == NXGE_NOTE) ||
1807 	    (level == NXGE_ERR_CTL)) {
1808 		/* do the msg processing */
1809 		if (nxge_debug_init == 0) {
1810 			MUTEX_INIT(&nxgedebuglock, NULL, MUTEX_DRIVER, NULL);
1811 			nxge_debug_init = 1;
1812 		}
1813 
1814 		MUTEX_ENTER(&nxgedebuglock);
1815 
1816 		if ((level & NXGE_NOTE)) {
1817 			cmn_level = CE_NOTE;
1818 		}
1819 
1820 		if (level & NXGE_ERR_CTL) {
1821 			cmn_level = CE_WARN;
1822 		}
1823 
1824 		va_start(ap, fmt);
1825 		(void) vsprintf(msg_buffer, fmt, ap);
1826 		va_end(ap);
1827 		if (nxgep == NULL) {
1828 			instance = -1;
1829 			(void) sprintf(prefix_buffer, "%s :", "nxge");
1830 		} else {
1831 			instance = nxgep->instance;
1832 			(void) sprintf(prefix_buffer,
1833 			    "%s%d :", "nxge", instance);
1834 		}
1835 
1836 		MUTEX_EXIT(&nxgedebuglock);
1837 		cmn_err(cmn_level, "!%s %s\n",
1838 		    prefix_buffer, msg_buffer);
1839 
1840 	}
1841 }
1842 
1843 char *
1844 nxge_dump_packet(char *addr, int size)
1845 {
1846 	uchar_t *ap = (uchar_t *)addr;
1847 	int i;
1848 	static char etherbuf[1024];
1849 	char *cp = etherbuf;
1850 	char digits[] = "0123456789abcdef";
1851 
1852 	if (!size)
1853 		size = 60;
1854 
1855 	if (size > MAX_DUMP_SZ) {
1856 		/* Dump the leading bytes */
1857 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1858 			if (*ap > 0x0f)
1859 				*cp++ = digits[*ap >> 4];
1860 			*cp++ = digits[*ap++ & 0xf];
1861 			*cp++ = ':';
1862 		}
1863 		for (i = 0; i < 20; i++)
1864 			*cp++ = '.';
1865 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1866 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ/2));
1867 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1868 			if (*ap > 0x0f)
1869 				*cp++ = digits[*ap >> 4];
1870 			*cp++ = digits[*ap++ & 0xf];
1871 			*cp++ = ':';
1872 		}
1873 	} else {
1874 		for (i = 0; i < size; i++) {
1875 			if (*ap > 0x0f)
1876 				*cp++ = digits[*ap >> 4];
1877 			*cp++ = digits[*ap++ & 0xf];
1878 			*cp++ = ':';
1879 		}
1880 	}
1881 	*--cp = 0;
1882 	return (etherbuf);
1883 }
1884 
1885 #ifdef	NXGE_DEBUG
1886 static void
1887 nxge_test_map_regs(p_nxge_t nxgep)
1888 {
1889 	ddi_acc_handle_t cfg_handle;
1890 	p_pci_cfg_t	cfg_ptr;
1891 	ddi_acc_handle_t dev_handle;
1892 	char		*dev_ptr;
1893 	ddi_acc_handle_t pci_config_handle;
1894 	uint32_t	regval;
1895 	int		i;
1896 
1897 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_test_map_regs"));
1898 
1899 	dev_handle = nxgep->dev_regs->nxge_regh;
1900 	dev_ptr = (char *)nxgep->dev_regs->nxge_regp;
1901 
1902 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1903 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1904 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1905 
1906 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1907 		    "Neptune PCI regp cfg_ptr 0x%llx", (char *)cfg_ptr));
1908 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1909 		    "Neptune PCI cfg_ptr vendor id ptr 0x%llx",
1910 		    &cfg_ptr->vendorid));
1911 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1912 		    "\tvendorid 0x%x devid 0x%x",
1913 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->vendorid, 0),
1914 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->devid,    0)));
1915 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1916 		    "PCI BAR: base 0x%x base14 0x%x base 18 0x%x "
1917 		    "bar1c 0x%x",
1918 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base,   0),
1919 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base14, 0),
1920 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base18, 0),
1921 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base1c, 0)));
1922 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1923 		    "\nNeptune PCI BAR: base20 0x%x base24 0x%x "
1924 		    "base 28 0x%x bar2c 0x%x\n",
1925 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base20, 0),
1926 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base24, 0),
1927 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base28, 0),
1928 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base2c, 0)));
1929 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1930 		    "\nNeptune PCI BAR: base30 0x%x\n",
1931 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base30, 0)));
1932 
1933 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1934 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1935 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1936 		    "first  0x%llx second 0x%llx third 0x%llx "
1937 		    "last 0x%llx ",
1938 		    NXGE_PIO_READ64(dev_handle,
1939 		    (uint64_t *)(dev_ptr + 0),  0),
1940 		    NXGE_PIO_READ64(dev_handle,
1941 		    (uint64_t *)(dev_ptr + 8),  0),
1942 		    NXGE_PIO_READ64(dev_handle,
1943 		    (uint64_t *)(dev_ptr + 16), 0),
1944 		    NXGE_PIO_READ64(cfg_handle,
1945 		    (uint64_t *)(dev_ptr + 24), 0)));
1946 	}
1947 }
1948 
1949 #endif
1950 
1951 static void
1952 nxge_suspend(p_nxge_t nxgep)
1953 {
1954 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_suspend"));
1955 
1956 	nxge_intrs_disable(nxgep);
1957 	nxge_destroy_dev(nxgep);
1958 
1959 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_suspend"));
1960 }
1961 
1962 static nxge_status_t
1963 nxge_resume(p_nxge_t nxgep)
1964 {
1965 	nxge_status_t status = NXGE_OK;
1966 
1967 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_resume"));
1968 
1969 	nxgep->suspended = DDI_RESUME;
1970 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1971 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_START);
1972 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_START);
1973 	(void) nxge_rx_mac_enable(nxgep);
1974 	(void) nxge_tx_mac_enable(nxgep);
1975 	nxge_intrs_enable(nxgep);
1976 	nxgep->suspended = 0;
1977 
1978 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1979 	    "<== nxge_resume status = 0x%x", status));
1980 	return (status);
1981 }
1982 
1983 static nxge_status_t
1984 nxge_setup_dev(p_nxge_t nxgep)
1985 {
1986 	nxge_status_t	status = NXGE_OK;
1987 
1988 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_dev port %d",
1989 	    nxgep->mac.portnum));
1990 
1991 	status = nxge_link_init(nxgep);
1992 
1993 	if (fm_check_acc_handle(nxgep->dev_regs->nxge_regh) != DDI_FM_OK) {
1994 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1995 		    "port%d Bad register acc handle", nxgep->mac.portnum));
1996 		status = NXGE_ERROR;
1997 	}
1998 
1999 	if (status != NXGE_OK) {
2000 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2001 		    " nxge_setup_dev status "
2002 		    "(xcvr init 0x%08x)", status));
2003 		goto nxge_setup_dev_exit;
2004 	}
2005 
2006 nxge_setup_dev_exit:
2007 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2008 	    "<== nxge_setup_dev port %d status = 0x%08x",
2009 	    nxgep->mac.portnum, status));
2010 
2011 	return (status);
2012 }
2013 
2014 static void
2015 nxge_destroy_dev(p_nxge_t nxgep)
2016 {
2017 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_dev"));
2018 
2019 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
2020 
2021 	(void) nxge_hw_stop(nxgep);
2022 
2023 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_dev"));
2024 }
2025 
2026 static nxge_status_t
2027 nxge_setup_system_dma_pages(p_nxge_t nxgep)
2028 {
2029 	int 			ddi_status = DDI_SUCCESS;
2030 	uint_t 			count;
2031 	ddi_dma_cookie_t 	cookie;
2032 	uint_t 			iommu_pagesize;
2033 	nxge_status_t		status = NXGE_OK;
2034 
2035 	NXGE_ERROR_MSG((nxgep, DDI_CTL, "==> nxge_setup_system_dma_pages"));
2036 	nxgep->sys_page_sz = ddi_ptob(nxgep->dip, (ulong_t)1);
2037 	if (nxgep->niu_type != N2_NIU) {
2038 		iommu_pagesize = dvma_pagesize(nxgep->dip);
2039 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2040 		    " nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2041 		    " default_block_size %d iommu_pagesize %d",
2042 		    nxgep->sys_page_sz,
2043 		    ddi_ptob(nxgep->dip, (ulong_t)1),
2044 		    nxgep->rx_default_block_size,
2045 		    iommu_pagesize));
2046 
2047 		if (iommu_pagesize != 0) {
2048 			if (nxgep->sys_page_sz == iommu_pagesize) {
2049 				if (iommu_pagesize > 0x4000)
2050 					nxgep->sys_page_sz = 0x4000;
2051 			} else {
2052 				if (nxgep->sys_page_sz > iommu_pagesize)
2053 					nxgep->sys_page_sz = iommu_pagesize;
2054 			}
2055 		}
2056 	}
2057 	nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2058 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2059 	    "==> nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2060 	    "default_block_size %d page mask %d",
2061 	    nxgep->sys_page_sz,
2062 	    ddi_ptob(nxgep->dip, (ulong_t)1),
2063 	    nxgep->rx_default_block_size,
2064 	    nxgep->sys_page_mask));
2065 
2066 
2067 	switch (nxgep->sys_page_sz) {
2068 	default:
2069 		nxgep->sys_page_sz = 0x1000;
2070 		nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2071 		nxgep->rx_default_block_size = 0x1000;
2072 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2073 		break;
2074 	case 0x1000:
2075 		nxgep->rx_default_block_size = 0x1000;
2076 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2077 		break;
2078 	case 0x2000:
2079 		nxgep->rx_default_block_size = 0x2000;
2080 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2081 		break;
2082 	case 0x4000:
2083 		nxgep->rx_default_block_size = 0x4000;
2084 		nxgep->rx_bksize_code = RBR_BKSIZE_16K;
2085 		break;
2086 	case 0x8000:
2087 		nxgep->rx_default_block_size = 0x8000;
2088 		nxgep->rx_bksize_code = RBR_BKSIZE_32K;
2089 		break;
2090 	}
2091 
2092 #ifndef USE_RX_BIG_BUF
2093 	nxge_rx_dma_attr.dma_attr_align = nxgep->sys_page_sz;
2094 #else
2095 		nxgep->rx_default_block_size = 0x2000;
2096 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2097 #endif
2098 	/*
2099 	 * Get the system DMA burst size.
2100 	 */
2101 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, &nxge_tx_dma_attr,
2102 	    DDI_DMA_DONTWAIT, 0,
2103 	    &nxgep->dmasparehandle);
2104 	if (ddi_status != DDI_SUCCESS) {
2105 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2106 		    "ddi_dma_alloc_handle: failed "
2107 		    " status 0x%x", ddi_status));
2108 		goto nxge_get_soft_properties_exit;
2109 	}
2110 
2111 	ddi_status = ddi_dma_addr_bind_handle(nxgep->dmasparehandle, NULL,
2112 	    (caddr_t)nxgep->dmasparehandle,
2113 	    sizeof (nxgep->dmasparehandle),
2114 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2115 	    DDI_DMA_DONTWAIT, 0,
2116 	    &cookie, &count);
2117 	if (ddi_status != DDI_DMA_MAPPED) {
2118 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2119 		    "Binding spare handle to find system"
2120 		    " burstsize failed."));
2121 		ddi_status = DDI_FAILURE;
2122 		goto nxge_get_soft_properties_fail1;
2123 	}
2124 
2125 	nxgep->sys_burst_sz = ddi_dma_burstsizes(nxgep->dmasparehandle);
2126 	(void) ddi_dma_unbind_handle(nxgep->dmasparehandle);
2127 
2128 nxge_get_soft_properties_fail1:
2129 	ddi_dma_free_handle(&nxgep->dmasparehandle);
2130 
2131 nxge_get_soft_properties_exit:
2132 
2133 	if (ddi_status != DDI_SUCCESS)
2134 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2135 
2136 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2137 	    "<== nxge_setup_system_dma_pages status = 0x%08x", status));
2138 	return (status);
2139 }
2140 
2141 static nxge_status_t
2142 nxge_alloc_mem_pool(p_nxge_t nxgep)
2143 {
2144 	nxge_status_t	status = NXGE_OK;
2145 
2146 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_alloc_mem_pool"));
2147 
2148 	status = nxge_alloc_rx_mem_pool(nxgep);
2149 	if (status != NXGE_OK) {
2150 		return (NXGE_ERROR);
2151 	}
2152 
2153 	status = nxge_alloc_tx_mem_pool(nxgep);
2154 	if (status != NXGE_OK) {
2155 		nxge_free_rx_mem_pool(nxgep);
2156 		return (NXGE_ERROR);
2157 	}
2158 
2159 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_alloc_mem_pool"));
2160 	return (NXGE_OK);
2161 }
2162 
2163 static void
2164 nxge_free_mem_pool(p_nxge_t nxgep)
2165 {
2166 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_mem_pool"));
2167 
2168 	nxge_free_rx_mem_pool(nxgep);
2169 	nxge_free_tx_mem_pool(nxgep);
2170 
2171 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_mem_pool"));
2172 }
2173 
2174 nxge_status_t
2175 nxge_alloc_rx_mem_pool(p_nxge_t nxgep)
2176 {
2177 	uint32_t		rdc_max;
2178 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
2179 	p_nxge_hw_pt_cfg_t	p_cfgp;
2180 	p_nxge_dma_pool_t	dma_poolp;
2181 	p_nxge_dma_common_t	*dma_buf_p;
2182 	p_nxge_dma_pool_t	dma_cntl_poolp;
2183 	p_nxge_dma_common_t	*dma_cntl_p;
2184 	uint32_t 		*num_chunks; /* per dma */
2185 	nxge_status_t		status = NXGE_OK;
2186 
2187 	uint32_t		nxge_port_rbr_size;
2188 	uint32_t		nxge_port_rbr_spare_size;
2189 	uint32_t		nxge_port_rcr_size;
2190 	uint32_t		rx_cntl_alloc_size;
2191 
2192 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_mem_pool"));
2193 
2194 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
2195 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
2196 	rdc_max = NXGE_MAX_RDCS;
2197 
2198 	/*
2199 	 * Allocate memory for the common DMA data structures.
2200 	 */
2201 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2202 	    KM_SLEEP);
2203 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2204 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2205 
2206 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2207 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2208 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2209 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2210 
2211 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2212 	    sizeof (uint32_t) * rdc_max, KM_SLEEP);
2213 
2214 	/*
2215 	 * Assume that each DMA channel will be configured with
2216 	 * the default block size.
2217 	 * rbr block counts are modulo the batch count (16).
2218 	 */
2219 	nxge_port_rbr_size = p_all_cfgp->rbr_size;
2220 	nxge_port_rcr_size = p_all_cfgp->rcr_size;
2221 
2222 	if (!nxge_port_rbr_size) {
2223 		nxge_port_rbr_size = NXGE_RBR_RBB_DEFAULT;
2224 	}
2225 	if (nxge_port_rbr_size % NXGE_RXDMA_POST_BATCH) {
2226 		nxge_port_rbr_size = (NXGE_RXDMA_POST_BATCH *
2227 		    (nxge_port_rbr_size / NXGE_RXDMA_POST_BATCH + 1));
2228 	}
2229 
2230 	p_all_cfgp->rbr_size = nxge_port_rbr_size;
2231 	nxge_port_rbr_spare_size = nxge_rbr_spare_size;
2232 
2233 	if (nxge_port_rbr_spare_size % NXGE_RXDMA_POST_BATCH) {
2234 		nxge_port_rbr_spare_size = (NXGE_RXDMA_POST_BATCH *
2235 		    (nxge_port_rbr_spare_size / NXGE_RXDMA_POST_BATCH + 1));
2236 	}
2237 	if (nxge_port_rbr_size > RBR_DEFAULT_MAX_BLKS) {
2238 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2239 		    "nxge_alloc_rx_mem_pool: RBR size too high %d, "
2240 		    "set to default %d",
2241 		    nxge_port_rbr_size, RBR_DEFAULT_MAX_BLKS));
2242 		nxge_port_rbr_size = RBR_DEFAULT_MAX_BLKS;
2243 	}
2244 	if (nxge_port_rcr_size > RCR_DEFAULT_MAX) {
2245 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2246 		    "nxge_alloc_rx_mem_pool: RCR too high %d, "
2247 		    "set to default %d",
2248 		    nxge_port_rcr_size, RCR_DEFAULT_MAX));
2249 		nxge_port_rcr_size = RCR_DEFAULT_MAX;
2250 	}
2251 
2252 	/*
2253 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2254 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2255 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2256 	 * function).
2257 	 */
2258 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2259 	if (nxgep->niu_type == N2_NIU) {
2260 		nxge_port_rbr_spare_size = 0;
2261 		if ((nxge_port_rbr_size > NXGE_NIU_CONTIG_RBR_MAX) ||
2262 		    (!ISP2(nxge_port_rbr_size))) {
2263 			nxge_port_rbr_size = NXGE_NIU_CONTIG_RBR_MAX;
2264 		}
2265 		if ((nxge_port_rcr_size > NXGE_NIU_CONTIG_RCR_MAX) ||
2266 		    (!ISP2(nxge_port_rcr_size))) {
2267 			nxge_port_rcr_size = NXGE_NIU_CONTIG_RCR_MAX;
2268 		}
2269 	}
2270 #endif
2271 
2272 	/*
2273 	 * Addresses of receive block ring, receive completion ring and the
2274 	 * mailbox must be all cache-aligned (64 bytes).
2275 	 */
2276 	rx_cntl_alloc_size = nxge_port_rbr_size + nxge_port_rbr_spare_size;
2277 	rx_cntl_alloc_size *= (sizeof (rx_desc_t));
2278 	rx_cntl_alloc_size += (sizeof (rcr_entry_t) * nxge_port_rcr_size);
2279 	rx_cntl_alloc_size += sizeof (rxdma_mailbox_t);
2280 
2281 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_alloc_rx_mem_pool: "
2282 	    "nxge_port_rbr_size = %d nxge_port_rbr_spare_size = %d "
2283 	    "nxge_port_rcr_size = %d "
2284 	    "rx_cntl_alloc_size = %d",
2285 	    nxge_port_rbr_size, nxge_port_rbr_spare_size,
2286 	    nxge_port_rcr_size,
2287 	    rx_cntl_alloc_size));
2288 
2289 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2290 	if (nxgep->niu_type == N2_NIU) {
2291 		uint32_t rx_buf_alloc_size = (nxgep->rx_default_block_size *
2292 		    (nxge_port_rbr_size + nxge_port_rbr_spare_size));
2293 
2294 		if (!ISP2(rx_buf_alloc_size)) {
2295 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2296 			    "==> nxge_alloc_rx_mem_pool: "
2297 			    " must be power of 2"));
2298 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2299 			goto nxge_alloc_rx_mem_pool_exit;
2300 		}
2301 
2302 		if (rx_buf_alloc_size > (1 << 22)) {
2303 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2304 			    "==> nxge_alloc_rx_mem_pool: "
2305 			    " limit size to 4M"));
2306 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2307 			goto nxge_alloc_rx_mem_pool_exit;
2308 		}
2309 
2310 		if (rx_cntl_alloc_size < 0x2000) {
2311 			rx_cntl_alloc_size = 0x2000;
2312 		}
2313 	}
2314 #endif
2315 	nxgep->nxge_port_rbr_size = nxge_port_rbr_size;
2316 	nxgep->nxge_port_rcr_size = nxge_port_rcr_size;
2317 	nxgep->nxge_port_rbr_spare_size = nxge_port_rbr_spare_size;
2318 	nxgep->nxge_port_rx_cntl_alloc_size = rx_cntl_alloc_size;
2319 
2320 	dma_poolp->ndmas = p_cfgp->max_rdcs;
2321 	dma_poolp->num_chunks = num_chunks;
2322 	dma_poolp->buf_allocated = B_TRUE;
2323 	nxgep->rx_buf_pool_p = dma_poolp;
2324 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2325 
2326 	dma_cntl_poolp->ndmas = p_cfgp->max_rdcs;
2327 	dma_cntl_poolp->buf_allocated = B_TRUE;
2328 	nxgep->rx_cntl_pool_p = dma_cntl_poolp;
2329 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2330 
2331 	/* Allocate the receive rings, too. */
2332 	nxgep->rx_rbr_rings =
2333 	    KMEM_ZALLOC(sizeof (rx_rbr_rings_t), KM_SLEEP);
2334 	nxgep->rx_rbr_rings->rbr_rings =
2335 	    KMEM_ZALLOC(sizeof (p_rx_rbr_ring_t) * rdc_max, KM_SLEEP);
2336 	nxgep->rx_rcr_rings =
2337 	    KMEM_ZALLOC(sizeof (rx_rcr_rings_t), KM_SLEEP);
2338 	nxgep->rx_rcr_rings->rcr_rings =
2339 	    KMEM_ZALLOC(sizeof (p_rx_rcr_ring_t) * rdc_max, KM_SLEEP);
2340 	nxgep->rx_mbox_areas_p =
2341 	    KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
2342 	nxgep->rx_mbox_areas_p->rxmbox_areas =
2343 	    KMEM_ZALLOC(sizeof (p_rx_mbox_t) * rdc_max, KM_SLEEP);
2344 
2345 	nxgep->rx_rbr_rings->ndmas = nxgep->rx_rcr_rings->ndmas =
2346 	    p_cfgp->max_rdcs;
2347 
2348 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2349 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2350 
2351 nxge_alloc_rx_mem_pool_exit:
2352 	return (status);
2353 }
2354 
2355 /*
2356  * nxge_alloc_rxb
2357  *
2358  *	Allocate buffers for an RDC.
2359  *
2360  * Arguments:
2361  * 	nxgep
2362  * 	channel	The channel to map into our kernel space.
2363  *
2364  * Notes:
2365  *
2366  * NPI function calls:
2367  *
2368  * NXGE function calls:
2369  *
2370  * Registers accessed:
2371  *
2372  * Context:
2373  *
2374  * Taking apart:
2375  *
2376  * Open questions:
2377  *
2378  */
2379 nxge_status_t
2380 nxge_alloc_rxb(
2381 	p_nxge_t nxgep,
2382 	int channel)
2383 {
2384 	size_t			rx_buf_alloc_size;
2385 	nxge_status_t		status = NXGE_OK;
2386 
2387 	nxge_dma_common_t	**data;
2388 	nxge_dma_common_t	**control;
2389 	uint32_t 		*num_chunks;
2390 
2391 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2392 
2393 	/*
2394 	 * Allocate memory for the receive buffers and descriptor rings.
2395 	 * Replace these allocation functions with the interface functions
2396 	 * provided by the partition manager if/when they are available.
2397 	 */
2398 
2399 	/*
2400 	 * Allocate memory for the receive buffer blocks.
2401 	 */
2402 	rx_buf_alloc_size = (nxgep->rx_default_block_size *
2403 	    (nxgep->nxge_port_rbr_size + nxgep->nxge_port_rbr_spare_size));
2404 
2405 	data = &nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2406 	num_chunks = &nxgep->rx_buf_pool_p->num_chunks[channel];
2407 
2408 	if ((status = nxge_alloc_rx_buf_dma(
2409 	    nxgep, channel, data, rx_buf_alloc_size,
2410 	    nxgep->rx_default_block_size, num_chunks)) != NXGE_OK) {
2411 		return (status);
2412 	}
2413 
2414 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_alloc_rxb(): "
2415 	    "dma %d dma_buf_p %llx &dma_buf_p %llx", channel, *data, data));
2416 
2417 	/*
2418 	 * Allocate memory for descriptor rings and mailbox.
2419 	 */
2420 	control = &nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2421 
2422 	if ((status = nxge_alloc_rx_cntl_dma(
2423 	    nxgep, channel, control, nxgep->nxge_port_rx_cntl_alloc_size))
2424 	    != NXGE_OK) {
2425 		nxge_free_rx_cntl_dma(nxgep, *control);
2426 		(*data)->buf_alloc_state |= BUF_ALLOCATED_WAIT_FREE;
2427 		nxge_free_rx_buf_dma(nxgep, *data, *num_chunks);
2428 		return (status);
2429 	}
2430 
2431 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2432 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2433 
2434 	return (status);
2435 }
2436 
2437 void
2438 nxge_free_rxb(
2439 	p_nxge_t nxgep,
2440 	int channel)
2441 {
2442 	nxge_dma_common_t	*data;
2443 	nxge_dma_common_t	*control;
2444 	uint32_t 		num_chunks;
2445 
2446 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2447 
2448 	data = nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2449 	num_chunks = nxgep->rx_buf_pool_p->num_chunks[channel];
2450 	nxge_free_rx_buf_dma(nxgep, data, num_chunks);
2451 
2452 	nxgep->rx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2453 	nxgep->rx_buf_pool_p->num_chunks[channel] = 0;
2454 
2455 	control = nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2456 	nxge_free_rx_cntl_dma(nxgep, control);
2457 
2458 	nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2459 
2460 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2461 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2462 
2463 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_alloc_rbb"));
2464 }
2465 
2466 static void
2467 nxge_free_rx_mem_pool(p_nxge_t nxgep)
2468 {
2469 	int rdc_max = NXGE_MAX_RDCS;
2470 
2471 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_mem_pool"));
2472 
2473 	if (!nxgep->rx_buf_pool_p || !nxgep->rx_buf_pool_p->buf_allocated) {
2474 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2475 		    "<== nxge_free_rx_mem_pool "
2476 		    "(null rx buf pool or buf not allocated"));
2477 		return;
2478 	}
2479 	if (!nxgep->rx_cntl_pool_p || !nxgep->rx_cntl_pool_p->buf_allocated) {
2480 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2481 		    "<== nxge_free_rx_mem_pool "
2482 		    "(null rx cntl buf pool or cntl buf not allocated"));
2483 		return;
2484 	}
2485 
2486 	KMEM_FREE(nxgep->rx_cntl_pool_p->dma_buf_pool_p,
2487 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2488 	KMEM_FREE(nxgep->rx_cntl_pool_p, sizeof (nxge_dma_pool_t));
2489 
2490 	KMEM_FREE(nxgep->rx_buf_pool_p->num_chunks,
2491 	    sizeof (uint32_t) * rdc_max);
2492 	KMEM_FREE(nxgep->rx_buf_pool_p->dma_buf_pool_p,
2493 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2494 	KMEM_FREE(nxgep->rx_buf_pool_p, sizeof (nxge_dma_pool_t));
2495 
2496 	nxgep->rx_buf_pool_p = 0;
2497 	nxgep->rx_cntl_pool_p = 0;
2498 
2499 	KMEM_FREE(nxgep->rx_rbr_rings->rbr_rings,
2500 	    sizeof (p_rx_rbr_ring_t) * rdc_max);
2501 	KMEM_FREE(nxgep->rx_rbr_rings, sizeof (rx_rbr_rings_t));
2502 	KMEM_FREE(nxgep->rx_rcr_rings->rcr_rings,
2503 	    sizeof (p_rx_rcr_ring_t) * rdc_max);
2504 	KMEM_FREE(nxgep->rx_rcr_rings, sizeof (rx_rcr_rings_t));
2505 	KMEM_FREE(nxgep->rx_mbox_areas_p->rxmbox_areas,
2506 	    sizeof (p_rx_mbox_t) * rdc_max);
2507 	KMEM_FREE(nxgep->rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
2508 
2509 	nxgep->rx_rbr_rings = 0;
2510 	nxgep->rx_rcr_rings = 0;
2511 	nxgep->rx_mbox_areas_p = 0;
2512 
2513 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_rx_mem_pool"));
2514 }
2515 
2516 
2517 static nxge_status_t
2518 nxge_alloc_rx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2519 	p_nxge_dma_common_t *dmap,
2520 	size_t alloc_size, size_t block_size, uint32_t *num_chunks)
2521 {
2522 	p_nxge_dma_common_t 	rx_dmap;
2523 	nxge_status_t		status = NXGE_OK;
2524 	size_t			total_alloc_size;
2525 	size_t			allocated = 0;
2526 	int			i, size_index, array_size;
2527 	boolean_t		use_kmem_alloc = B_FALSE;
2528 
2529 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_buf_dma"));
2530 
2531 	rx_dmap = (p_nxge_dma_common_t)
2532 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2533 	    KM_SLEEP);
2534 
2535 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2536 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
2537 	    dma_channel, alloc_size, block_size, dmap));
2538 
2539 	total_alloc_size = alloc_size;
2540 
2541 #if defined(RX_USE_RECLAIM_POST)
2542 	total_alloc_size = alloc_size + alloc_size/4;
2543 #endif
2544 
2545 	i = 0;
2546 	size_index = 0;
2547 	array_size =  sizeof (alloc_sizes)/sizeof (size_t);
2548 	while ((size_index < array_size) &&
2549 	    (alloc_sizes[size_index] < alloc_size))
2550 		size_index++;
2551 	if (size_index >= array_size) {
2552 		size_index = array_size - 1;
2553 	}
2554 
2555 	/* For Neptune, use kmem_alloc if the kmem flag is set. */
2556 	if (nxgep->niu_type != N2_NIU && nxge_use_kmem_alloc) {
2557 		use_kmem_alloc = B_TRUE;
2558 #if defined(__i386) || defined(__amd64)
2559 		size_index = 0;
2560 #endif
2561 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2562 		    "==> nxge_alloc_rx_buf_dma: "
2563 		    "Neptune use kmem_alloc() - size_index %d",
2564 		    size_index));
2565 	}
2566 
2567 	while ((allocated < total_alloc_size) &&
2568 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2569 		rx_dmap[i].dma_chunk_index = i;
2570 		rx_dmap[i].block_size = block_size;
2571 		rx_dmap[i].alength = alloc_sizes[size_index];
2572 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
2573 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2574 		rx_dmap[i].dma_channel = dma_channel;
2575 		rx_dmap[i].contig_alloc_type = B_FALSE;
2576 		rx_dmap[i].kmem_alloc_type = B_FALSE;
2577 		rx_dmap[i].buf_alloc_type = DDI_MEM_ALLOC;
2578 
2579 		/*
2580 		 * N2/NIU: data buffers must be contiguous as the driver
2581 		 *	   needs to call Hypervisor api to set up
2582 		 *	   logical pages.
2583 		 */
2584 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2585 			rx_dmap[i].contig_alloc_type = B_TRUE;
2586 			rx_dmap[i].buf_alloc_type = CONTIG_MEM_ALLOC;
2587 		} else if (use_kmem_alloc) {
2588 			/* For Neptune, use kmem_alloc */
2589 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2590 			    "==> nxge_alloc_rx_buf_dma: "
2591 			    "Neptune use kmem_alloc()"));
2592 			rx_dmap[i].kmem_alloc_type = B_TRUE;
2593 			rx_dmap[i].buf_alloc_type = KMEM_ALLOC;
2594 		}
2595 
2596 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2597 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
2598 		    "i %d nblocks %d alength %d",
2599 		    dma_channel, i, &rx_dmap[i], block_size,
2600 		    i, rx_dmap[i].nblocks,
2601 		    rx_dmap[i].alength));
2602 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2603 		    &nxge_rx_dma_attr,
2604 		    rx_dmap[i].alength,
2605 		    &nxge_dev_buf_dma_acc_attr,
2606 		    DDI_DMA_READ | DDI_DMA_STREAMING,
2607 		    (p_nxge_dma_common_t)(&rx_dmap[i]));
2608 		if (status != NXGE_OK) {
2609 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2610 			    "nxge_alloc_rx_buf_dma: Alloc Failed: "
2611 			    "dma %d size_index %d size requested %d",
2612 			    dma_channel,
2613 			    size_index,
2614 			    rx_dmap[i].alength));
2615 			size_index--;
2616 		} else {
2617 			rx_dmap[i].buf_alloc_state = BUF_ALLOCATED;
2618 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2619 			    " nxge_alloc_rx_buf_dma DONE  alloc mem: "
2620 			    "dma %d dma_buf_p $%p kaddrp $%p alength %d "
2621 			    "buf_alloc_state %d alloc_type %d",
2622 			    dma_channel,
2623 			    &rx_dmap[i],
2624 			    rx_dmap[i].kaddrp,
2625 			    rx_dmap[i].alength,
2626 			    rx_dmap[i].buf_alloc_state,
2627 			    rx_dmap[i].buf_alloc_type));
2628 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2629 			    " alloc_rx_buf_dma allocated rdc %d "
2630 			    "chunk %d size %x dvma %x bufp %llx kaddrp $%p",
2631 			    dma_channel, i, rx_dmap[i].alength,
2632 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i],
2633 			    rx_dmap[i].kaddrp));
2634 			i++;
2635 			allocated += alloc_sizes[size_index];
2636 		}
2637 	}
2638 
2639 	if (allocated < total_alloc_size) {
2640 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2641 		    "==> nxge_alloc_rx_buf_dma: not enough for channel %d "
2642 		    "allocated 0x%x requested 0x%x",
2643 		    dma_channel,
2644 		    allocated, total_alloc_size));
2645 		status = NXGE_ERROR;
2646 		goto nxge_alloc_rx_mem_fail1;
2647 	}
2648 
2649 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2650 	    "==> nxge_alloc_rx_buf_dma: Allocated for channel %d "
2651 	    "allocated 0x%x requested 0x%x",
2652 	    dma_channel,
2653 	    allocated, total_alloc_size));
2654 
2655 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2656 	    " alloc_rx_buf_dma rdc %d allocated %d chunks",
2657 	    dma_channel, i));
2658 	*num_chunks = i;
2659 	*dmap = rx_dmap;
2660 
2661 	goto nxge_alloc_rx_mem_exit;
2662 
2663 nxge_alloc_rx_mem_fail1:
2664 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2665 
2666 nxge_alloc_rx_mem_exit:
2667 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2668 	    "<== nxge_alloc_rx_buf_dma status 0x%08x", status));
2669 
2670 	return (status);
2671 }
2672 
2673 /*ARGSUSED*/
2674 static void
2675 nxge_free_rx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2676     uint32_t num_chunks)
2677 {
2678 	int		i;
2679 
2680 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2681 	    "==> nxge_free_rx_buf_dma: # of chunks %d", num_chunks));
2682 
2683 	if (dmap == 0)
2684 		return;
2685 
2686 	for (i = 0; i < num_chunks; i++) {
2687 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2688 		    "==> nxge_free_rx_buf_dma: chunk %d dmap 0x%llx",
2689 		    i, dmap));
2690 		nxge_dma_free_rx_data_buf(dmap++);
2691 	}
2692 
2693 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_buf_dma"));
2694 }
2695 
2696 /*ARGSUSED*/
2697 static nxge_status_t
2698 nxge_alloc_rx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2699     p_nxge_dma_common_t *dmap, size_t size)
2700 {
2701 	p_nxge_dma_common_t 	rx_dmap;
2702 	nxge_status_t		status = NXGE_OK;
2703 
2704 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_cntl_dma"));
2705 
2706 	rx_dmap = (p_nxge_dma_common_t)
2707 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2708 
2709 	rx_dmap->contig_alloc_type = B_FALSE;
2710 	rx_dmap->kmem_alloc_type = B_FALSE;
2711 
2712 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2713 	    &nxge_desc_dma_attr,
2714 	    size,
2715 	    &nxge_dev_desc_dma_acc_attr,
2716 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2717 	    rx_dmap);
2718 	if (status != NXGE_OK) {
2719 		goto nxge_alloc_rx_cntl_dma_fail1;
2720 	}
2721 
2722 	*dmap = rx_dmap;
2723 	goto nxge_alloc_rx_cntl_dma_exit;
2724 
2725 nxge_alloc_rx_cntl_dma_fail1:
2726 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t));
2727 
2728 nxge_alloc_rx_cntl_dma_exit:
2729 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2730 	    "<== nxge_alloc_rx_cntl_dma status 0x%08x", status));
2731 
2732 	return (status);
2733 }
2734 
2735 /*ARGSUSED*/
2736 static void
2737 nxge_free_rx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2738 {
2739 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_rx_cntl_dma"));
2740 
2741 	if (dmap == 0)
2742 		return;
2743 
2744 	nxge_dma_mem_free(dmap);
2745 
2746 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_rx_cntl_dma"));
2747 }
2748 
2749 typedef struct {
2750 	size_t	tx_size;
2751 	size_t	cr_size;
2752 	size_t	threshhold;
2753 } nxge_tdc_sizes_t;
2754 
2755 static
2756 nxge_status_t
2757 nxge_tdc_sizes(
2758 	nxge_t *nxgep,
2759 	nxge_tdc_sizes_t *sizes)
2760 {
2761 	uint32_t threshhold;	/* The bcopy() threshhold */
2762 	size_t tx_size;		/* Transmit buffer size */
2763 	size_t cr_size;		/* Completion ring size */
2764 
2765 	/*
2766 	 * Assume that each DMA channel will be configured with the
2767 	 * default transmit buffer size for copying transmit data.
2768 	 * (If a packet is bigger than this, it will not be copied.)
2769 	 */
2770 	if (nxgep->niu_type == N2_NIU) {
2771 		threshhold = TX_BCOPY_SIZE;
2772 	} else {
2773 		threshhold = nxge_bcopy_thresh;
2774 	}
2775 	tx_size = nxge_tx_ring_size * threshhold;
2776 
2777 	cr_size = nxge_tx_ring_size * sizeof (tx_desc_t);
2778 	cr_size += sizeof (txdma_mailbox_t);
2779 
2780 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2781 	if (nxgep->niu_type == N2_NIU) {
2782 		if (!ISP2(tx_size)) {
2783 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2784 			    "==> nxge_tdc_sizes: Tx size"
2785 			    " must be power of 2"));
2786 			return (NXGE_ERROR);
2787 		}
2788 
2789 		if (tx_size > (1 << 22)) {
2790 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2791 			    "==> nxge_tdc_sizes: Tx size"
2792 			    " limited to 4M"));
2793 			return (NXGE_ERROR);
2794 		}
2795 
2796 		if (cr_size < 0x2000)
2797 			cr_size = 0x2000;
2798 	}
2799 #endif
2800 
2801 	sizes->threshhold = threshhold;
2802 	sizes->tx_size = tx_size;
2803 	sizes->cr_size = cr_size;
2804 
2805 	return (NXGE_OK);
2806 }
2807 /*
2808  * nxge_alloc_txb
2809  *
2810  *	Allocate buffers for an TDC.
2811  *
2812  * Arguments:
2813  * 	nxgep
2814  * 	channel	The channel to map into our kernel space.
2815  *
2816  * Notes:
2817  *
2818  * NPI function calls:
2819  *
2820  * NXGE function calls:
2821  *
2822  * Registers accessed:
2823  *
2824  * Context:
2825  *
2826  * Taking apart:
2827  *
2828  * Open questions:
2829  *
2830  */
2831 nxge_status_t
2832 nxge_alloc_txb(
2833 	p_nxge_t nxgep,
2834 	int channel)
2835 {
2836 	nxge_dma_common_t	**dma_buf_p;
2837 	nxge_dma_common_t	**dma_cntl_p;
2838 	uint32_t 		*num_chunks;
2839 	nxge_status_t		status = NXGE_OK;
2840 
2841 	nxge_tdc_sizes_t	sizes;
2842 
2843 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tbb"));
2844 
2845 	if (nxge_tdc_sizes(nxgep, &sizes) != NXGE_OK)
2846 		return (NXGE_ERROR);
2847 
2848 	/*
2849 	 * Allocate memory for transmit buffers and descriptor rings.
2850 	 * Replace these allocation functions with the interface functions
2851 	 * provided by the partition manager Real Soon Now.
2852 	 */
2853 	dma_buf_p = &nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2854 	num_chunks = &nxgep->tx_buf_pool_p->num_chunks[channel];
2855 
2856 	dma_cntl_p = &nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2857 
2858 	/*
2859 	 * Allocate memory for transmit buffers and descriptor rings.
2860 	 * Replace allocation functions with interface functions provided
2861 	 * by the partition manager when it is available.
2862 	 *
2863 	 * Allocate memory for the transmit buffer pool.
2864 	 */
2865 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2866 	    "sizes: tx: %ld, cr:%ld, th:%ld",
2867 	    sizes.tx_size, sizes.cr_size, sizes.threshhold));
2868 
2869 	*num_chunks = 0;
2870 	status = nxge_alloc_tx_buf_dma(nxgep, channel, dma_buf_p,
2871 	    sizes.tx_size, sizes.threshhold, num_chunks);
2872 	if (status != NXGE_OK) {
2873 		cmn_err(CE_NOTE, "nxge_alloc_tx_buf_dma failed!");
2874 		return (status);
2875 	}
2876 
2877 	/*
2878 	 * Allocate memory for descriptor rings and mailbox.
2879 	 */
2880 	status = nxge_alloc_tx_cntl_dma(nxgep, channel, dma_cntl_p,
2881 	    sizes.cr_size);
2882 	if (status != NXGE_OK) {
2883 		nxge_free_tx_buf_dma(nxgep, *dma_buf_p, *num_chunks);
2884 		cmn_err(CE_NOTE, "nxge_alloc_tx_cntl_dma failed!");
2885 		return (status);
2886 	}
2887 
2888 	return (NXGE_OK);
2889 }
2890 
2891 void
2892 nxge_free_txb(
2893 	p_nxge_t nxgep,
2894 	int channel)
2895 {
2896 	nxge_dma_common_t	*data;
2897 	nxge_dma_common_t	*control;
2898 	uint32_t 		num_chunks;
2899 
2900 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_txb"));
2901 
2902 	data = nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2903 	num_chunks = nxgep->tx_buf_pool_p->num_chunks[channel];
2904 	nxge_free_tx_buf_dma(nxgep, data, num_chunks);
2905 
2906 	nxgep->tx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2907 	nxgep->tx_buf_pool_p->num_chunks[channel] = 0;
2908 
2909 	control = nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2910 	nxge_free_tx_cntl_dma(nxgep, control);
2911 
2912 	nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2913 
2914 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2915 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2916 
2917 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_txb"));
2918 }
2919 
2920 /*
2921  * nxge_alloc_tx_mem_pool
2922  *
2923  *	This function allocates all of the per-port TDC control data structures.
2924  *	The per-channel (TDC) data structures are allocated when needed.
2925  *
2926  * Arguments:
2927  * 	nxgep
2928  *
2929  * Notes:
2930  *
2931  * Context:
2932  *	Any domain
2933  */
2934 nxge_status_t
2935 nxge_alloc_tx_mem_pool(p_nxge_t nxgep)
2936 {
2937 	nxge_hw_pt_cfg_t	*p_cfgp;
2938 	nxge_dma_pool_t		*dma_poolp;
2939 	nxge_dma_common_t	**dma_buf_p;
2940 	nxge_dma_pool_t		*dma_cntl_poolp;
2941 	nxge_dma_common_t	**dma_cntl_p;
2942 	uint32_t		*num_chunks; /* per dma */
2943 	int			tdc_max;
2944 
2945 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool"));
2946 
2947 	p_cfgp = &nxgep->pt_config.hw_config;
2948 	tdc_max = NXGE_MAX_TDCS;
2949 
2950 	/*
2951 	 * Allocate memory for each transmit DMA channel.
2952 	 */
2953 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2954 	    KM_SLEEP);
2955 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2956 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2957 
2958 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2959 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2960 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2961 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2962 
2963 	if (nxge_tx_ring_size > TDC_DEFAULT_MAX) {
2964 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2965 		    "nxge_alloc_tx_mem_pool: TDC too high %d, "
2966 		    "set to default %d",
2967 		    nxge_tx_ring_size, TDC_DEFAULT_MAX));
2968 		nxge_tx_ring_size = TDC_DEFAULT_MAX;
2969 	}
2970 
2971 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2972 	/*
2973 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2974 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2975 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2976 	 * function). The transmit ring is limited to 8K (includes the
2977 	 * mailbox).
2978 	 */
2979 	if (nxgep->niu_type == N2_NIU) {
2980 		if ((nxge_tx_ring_size > NXGE_NIU_CONTIG_TX_MAX) ||
2981 		    (!ISP2(nxge_tx_ring_size))) {
2982 			nxge_tx_ring_size = NXGE_NIU_CONTIG_TX_MAX;
2983 		}
2984 	}
2985 #endif
2986 
2987 	nxgep->nxge_port_tx_ring_size = nxge_tx_ring_size;
2988 
2989 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2990 	    sizeof (uint32_t) * tdc_max, KM_SLEEP);
2991 
2992 	dma_poolp->ndmas = p_cfgp->tdc.owned;
2993 	dma_poolp->num_chunks = num_chunks;
2994 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2995 	nxgep->tx_buf_pool_p = dma_poolp;
2996 
2997 	dma_poolp->buf_allocated = B_TRUE;
2998 
2999 	dma_cntl_poolp->ndmas = p_cfgp->tdc.owned;
3000 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
3001 	nxgep->tx_cntl_pool_p = dma_cntl_poolp;
3002 
3003 	dma_cntl_poolp->buf_allocated = B_TRUE;
3004 
3005 	nxgep->tx_rings =
3006 	    KMEM_ZALLOC(sizeof (tx_rings_t), KM_SLEEP);
3007 	nxgep->tx_rings->rings =
3008 	    KMEM_ZALLOC(sizeof (p_tx_ring_t) * tdc_max, KM_SLEEP);
3009 	nxgep->tx_mbox_areas_p =
3010 	    KMEM_ZALLOC(sizeof (tx_mbox_areas_t), KM_SLEEP);
3011 	nxgep->tx_mbox_areas_p->txmbox_areas_p =
3012 	    KMEM_ZALLOC(sizeof (p_tx_mbox_t) * tdc_max, KM_SLEEP);
3013 
3014 	nxgep->tx_rings->ndmas = p_cfgp->tdc.owned;
3015 
3016 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
3017 	    "==> nxge_alloc_tx_mem_pool: ndmas %d poolp->ndmas %d",
3018 	    tdc_max, dma_poolp->ndmas));
3019 
3020 	return (NXGE_OK);
3021 }
3022 
3023 nxge_status_t
3024 nxge_alloc_tx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
3025     p_nxge_dma_common_t *dmap, size_t alloc_size,
3026     size_t block_size, uint32_t *num_chunks)
3027 {
3028 	p_nxge_dma_common_t 	tx_dmap;
3029 	nxge_status_t		status = NXGE_OK;
3030 	size_t			total_alloc_size;
3031 	size_t			allocated = 0;
3032 	int			i, size_index, array_size;
3033 
3034 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_buf_dma"));
3035 
3036 	tx_dmap = (p_nxge_dma_common_t)
3037 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
3038 	    KM_SLEEP);
3039 
3040 	total_alloc_size = alloc_size;
3041 	i = 0;
3042 	size_index = 0;
3043 	array_size =  sizeof (alloc_sizes) /  sizeof (size_t);
3044 	while ((size_index < array_size) &&
3045 	    (alloc_sizes[size_index] < alloc_size))
3046 		size_index++;
3047 	if (size_index >= array_size) {
3048 		size_index = array_size - 1;
3049 	}
3050 
3051 	while ((allocated < total_alloc_size) &&
3052 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
3053 
3054 		tx_dmap[i].dma_chunk_index = i;
3055 		tx_dmap[i].block_size = block_size;
3056 		tx_dmap[i].alength = alloc_sizes[size_index];
3057 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
3058 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
3059 		tx_dmap[i].dma_channel = dma_channel;
3060 		tx_dmap[i].contig_alloc_type = B_FALSE;
3061 		tx_dmap[i].kmem_alloc_type = B_FALSE;
3062 
3063 		/*
3064 		 * N2/NIU: data buffers must be contiguous as the driver
3065 		 *	   needs to call Hypervisor api to set up
3066 		 *	   logical pages.
3067 		 */
3068 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
3069 			tx_dmap[i].contig_alloc_type = B_TRUE;
3070 		}
3071 
3072 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3073 		    &nxge_tx_dma_attr,
3074 		    tx_dmap[i].alength,
3075 		    &nxge_dev_buf_dma_acc_attr,
3076 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
3077 		    (p_nxge_dma_common_t)(&tx_dmap[i]));
3078 		if (status != NXGE_OK) {
3079 			size_index--;
3080 		} else {
3081 			i++;
3082 			allocated += alloc_sizes[size_index];
3083 		}
3084 	}
3085 
3086 	if (allocated < total_alloc_size) {
3087 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3088 		    "==> nxge_alloc_tx_buf_dma: not enough channel %d: "
3089 		    "allocated 0x%x requested 0x%x",
3090 		    dma_channel,
3091 		    allocated, total_alloc_size));
3092 		status = NXGE_ERROR;
3093 		goto nxge_alloc_tx_mem_fail1;
3094 	}
3095 
3096 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3097 	    "==> nxge_alloc_tx_buf_dma: Allocated for channel %d: "
3098 	    "allocated 0x%x requested 0x%x",
3099 	    dma_channel,
3100 	    allocated, total_alloc_size));
3101 
3102 	*num_chunks = i;
3103 	*dmap = tx_dmap;
3104 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3105 	    "==> nxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
3106 	    *dmap, i));
3107 	goto nxge_alloc_tx_mem_exit;
3108 
3109 nxge_alloc_tx_mem_fail1:
3110 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
3111 
3112 nxge_alloc_tx_mem_exit:
3113 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3114 	    "<== nxge_alloc_tx_buf_dma status 0x%08x", status));
3115 
3116 	return (status);
3117 }
3118 
3119 /*ARGSUSED*/
3120 static void
3121 nxge_free_tx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
3122     uint32_t num_chunks)
3123 {
3124 	int		i;
3125 
3126 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_tx_buf_dma"));
3127 
3128 	if (dmap == 0)
3129 		return;
3130 
3131 	for (i = 0; i < num_chunks; i++) {
3132 		nxge_dma_mem_free(dmap++);
3133 	}
3134 
3135 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_tx_buf_dma"));
3136 }
3137 
3138 /*ARGSUSED*/
3139 nxge_status_t
3140 nxge_alloc_tx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
3141     p_nxge_dma_common_t *dmap, size_t size)
3142 {
3143 	p_nxge_dma_common_t 	tx_dmap;
3144 	nxge_status_t		status = NXGE_OK;
3145 
3146 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_cntl_dma"));
3147 	tx_dmap = (p_nxge_dma_common_t)
3148 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
3149 
3150 	tx_dmap->contig_alloc_type = B_FALSE;
3151 	tx_dmap->kmem_alloc_type = B_FALSE;
3152 
3153 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3154 	    &nxge_desc_dma_attr,
3155 	    size,
3156 	    &nxge_dev_desc_dma_acc_attr,
3157 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
3158 	    tx_dmap);
3159 	if (status != NXGE_OK) {
3160 		goto nxge_alloc_tx_cntl_dma_fail1;
3161 	}
3162 
3163 	*dmap = tx_dmap;
3164 	goto nxge_alloc_tx_cntl_dma_exit;
3165 
3166 nxge_alloc_tx_cntl_dma_fail1:
3167 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t));
3168 
3169 nxge_alloc_tx_cntl_dma_exit:
3170 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3171 	    "<== nxge_alloc_tx_cntl_dma status 0x%08x", status));
3172 
3173 	return (status);
3174 }
3175 
3176 /*ARGSUSED*/
3177 static void
3178 nxge_free_tx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
3179 {
3180 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_tx_cntl_dma"));
3181 
3182 	if (dmap == 0)
3183 		return;
3184 
3185 	nxge_dma_mem_free(dmap);
3186 
3187 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_tx_cntl_dma"));
3188 }
3189 
3190 /*
3191  * nxge_free_tx_mem_pool
3192  *
3193  *	This function frees all of the per-port TDC control data structures.
3194  *	The per-channel (TDC) data structures are freed when the channel
3195  *	is stopped.
3196  *
3197  * Arguments:
3198  * 	nxgep
3199  *
3200  * Notes:
3201  *
3202  * Context:
3203  *	Any domain
3204  */
3205 static void
3206 nxge_free_tx_mem_pool(p_nxge_t nxgep)
3207 {
3208 	int tdc_max = NXGE_MAX_TDCS;
3209 
3210 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_tx_mem_pool"));
3211 
3212 	if (!nxgep->tx_buf_pool_p || !nxgep->tx_buf_pool_p->buf_allocated) {
3213 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3214 		    "<== nxge_free_tx_mem_pool "
3215 		    "(null tx buf pool or buf not allocated"));
3216 		return;
3217 	}
3218 	if (!nxgep->tx_cntl_pool_p || !nxgep->tx_cntl_pool_p->buf_allocated) {
3219 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3220 		    "<== nxge_free_tx_mem_pool "
3221 		    "(null tx cntl buf pool or cntl buf not allocated"));
3222 		return;
3223 	}
3224 
3225 	/* 1. Free the mailboxes. */
3226 	KMEM_FREE(nxgep->tx_mbox_areas_p->txmbox_areas_p,
3227 	    sizeof (p_tx_mbox_t) * tdc_max);
3228 	KMEM_FREE(nxgep->tx_mbox_areas_p, sizeof (tx_mbox_areas_t));
3229 
3230 	nxgep->tx_mbox_areas_p = 0;
3231 
3232 	/* 2. Free the transmit ring arrays. */
3233 	KMEM_FREE(nxgep->tx_rings->rings,
3234 	    sizeof (p_tx_ring_t) * tdc_max);
3235 	KMEM_FREE(nxgep->tx_rings, sizeof (tx_rings_t));
3236 
3237 	nxgep->tx_rings = 0;
3238 
3239 	/* 3. Free the completion ring data structures. */
3240 	KMEM_FREE(nxgep->tx_cntl_pool_p->dma_buf_pool_p,
3241 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3242 	KMEM_FREE(nxgep->tx_cntl_pool_p, sizeof (nxge_dma_pool_t));
3243 
3244 	nxgep->tx_cntl_pool_p = 0;
3245 
3246 	/* 4. Free the data ring data structures. */
3247 	KMEM_FREE(nxgep->tx_buf_pool_p->num_chunks,
3248 	    sizeof (uint32_t) * tdc_max);
3249 	KMEM_FREE(nxgep->tx_buf_pool_p->dma_buf_pool_p,
3250 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3251 	KMEM_FREE(nxgep->tx_buf_pool_p, sizeof (nxge_dma_pool_t));
3252 
3253 	nxgep->tx_buf_pool_p = 0;
3254 
3255 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_tx_mem_pool"));
3256 }
3257 
3258 /*ARGSUSED*/
3259 static nxge_status_t
3260 nxge_dma_mem_alloc(p_nxge_t nxgep, dma_method_t method,
3261 	struct ddi_dma_attr *dma_attrp,
3262 	size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
3263 	p_nxge_dma_common_t dma_p)
3264 {
3265 	caddr_t 		kaddrp;
3266 	int			ddi_status = DDI_SUCCESS;
3267 	boolean_t		contig_alloc_type;
3268 	boolean_t		kmem_alloc_type;
3269 
3270 	contig_alloc_type = dma_p->contig_alloc_type;
3271 
3272 	if (contig_alloc_type && (nxgep->niu_type != N2_NIU)) {
3273 		/*
3274 		 * contig_alloc_type for contiguous memory only allowed
3275 		 * for N2/NIU.
3276 		 */
3277 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3278 		    "nxge_dma_mem_alloc: alloc type not allowed (%d)",
3279 		    dma_p->contig_alloc_type));
3280 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3281 	}
3282 
3283 	dma_p->dma_handle = NULL;
3284 	dma_p->acc_handle = NULL;
3285 	dma_p->kaddrp = dma_p->last_kaddrp = NULL;
3286 	dma_p->first_ioaddr_pp = dma_p->last_ioaddr_pp = NULL;
3287 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, dma_attrp,
3288 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
3289 	if (ddi_status != DDI_SUCCESS) {
3290 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3291 		    "nxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
3292 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3293 	}
3294 
3295 	kmem_alloc_type = dma_p->kmem_alloc_type;
3296 
3297 	switch (contig_alloc_type) {
3298 	case B_FALSE:
3299 		switch (kmem_alloc_type) {
3300 		case B_FALSE:
3301 			ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle,
3302 			    length,
3303 			    acc_attr_p,
3304 			    xfer_flags,
3305 			    DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
3306 			    &dma_p->acc_handle);
3307 			if (ddi_status != DDI_SUCCESS) {
3308 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3309 				    "nxge_dma_mem_alloc: "
3310 				    "ddi_dma_mem_alloc failed"));
3311 				ddi_dma_free_handle(&dma_p->dma_handle);
3312 				dma_p->dma_handle = NULL;
3313 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3314 			}
3315 			if (dma_p->alength < length) {
3316 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3317 				    "nxge_dma_mem_alloc:di_dma_mem_alloc "
3318 				    "< length."));
3319 				ddi_dma_mem_free(&dma_p->acc_handle);
3320 				ddi_dma_free_handle(&dma_p->dma_handle);
3321 				dma_p->acc_handle = NULL;
3322 				dma_p->dma_handle = NULL;
3323 				return (NXGE_ERROR);
3324 			}
3325 
3326 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3327 			    NULL,
3328 			    kaddrp, dma_p->alength, xfer_flags,
3329 			    DDI_DMA_DONTWAIT,
3330 			    0, &dma_p->dma_cookie, &dma_p->ncookies);
3331 			if (ddi_status != DDI_DMA_MAPPED) {
3332 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3333 				    "nxge_dma_mem_alloc: ddi_dma_addr_bind "
3334 				    "failed "
3335 				    "(staus 0x%x ncookies %d.)", ddi_status,
3336 				    dma_p->ncookies));
3337 				if (dma_p->acc_handle) {
3338 					ddi_dma_mem_free(&dma_p->acc_handle);
3339 					dma_p->acc_handle = NULL;
3340 				}
3341 				ddi_dma_free_handle(&dma_p->dma_handle);
3342 				dma_p->dma_handle = NULL;
3343 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3344 			}
3345 
3346 			if (dma_p->ncookies != 1) {
3347 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3348 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3349 				    "> 1 cookie"
3350 				    "(staus 0x%x ncookies %d.)", ddi_status,
3351 				    dma_p->ncookies));
3352 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3353 				if (dma_p->acc_handle) {
3354 					ddi_dma_mem_free(&dma_p->acc_handle);
3355 					dma_p->acc_handle = NULL;
3356 				}
3357 				ddi_dma_free_handle(&dma_p->dma_handle);
3358 				dma_p->dma_handle = NULL;
3359 				dma_p->acc_handle = NULL;
3360 				return (NXGE_ERROR);
3361 			}
3362 			break;
3363 
3364 		case B_TRUE:
3365 			kaddrp = KMEM_ALLOC(length, KM_NOSLEEP);
3366 			if (kaddrp == NULL) {
3367 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3368 				    "nxge_dma_mem_alloc:ddi_dma_mem_alloc "
3369 				    "kmem alloc failed"));
3370 				return (NXGE_ERROR);
3371 			}
3372 
3373 			dma_p->alength = length;
3374 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3375 			    NULL, kaddrp, dma_p->alength, xfer_flags,
3376 			    DDI_DMA_DONTWAIT, 0,
3377 			    &dma_p->dma_cookie, &dma_p->ncookies);
3378 			if (ddi_status != DDI_DMA_MAPPED) {
3379 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3380 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind: "
3381 				    "(kmem_alloc) failed kaddrp $%p length %d "
3382 				    "(staus 0x%x (%d) ncookies %d.)",
3383 				    kaddrp, length,
3384 				    ddi_status, ddi_status, dma_p->ncookies));
3385 				KMEM_FREE(kaddrp, length);
3386 				dma_p->acc_handle = NULL;
3387 				ddi_dma_free_handle(&dma_p->dma_handle);
3388 				dma_p->dma_handle = NULL;
3389 				dma_p->kaddrp = NULL;
3390 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3391 			}
3392 
3393 			if (dma_p->ncookies != 1) {
3394 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3395 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3396 				    "(kmem_alloc) > 1 cookie"
3397 				    "(staus 0x%x ncookies %d.)", ddi_status,
3398 				    dma_p->ncookies));
3399 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3400 				KMEM_FREE(kaddrp, length);
3401 				ddi_dma_free_handle(&dma_p->dma_handle);
3402 				dma_p->dma_handle = NULL;
3403 				dma_p->acc_handle = NULL;
3404 				dma_p->kaddrp = NULL;
3405 				return (NXGE_ERROR);
3406 			}
3407 
3408 			dma_p->kaddrp = kaddrp;
3409 
3410 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
3411 			    "nxge_dma_mem_alloc: kmem_alloc dmap $%p "
3412 			    "kaddr $%p alength %d",
3413 			    dma_p,
3414 			    kaddrp,
3415 			    dma_p->alength));
3416 			break;
3417 		}
3418 		break;
3419 
3420 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3421 	case B_TRUE:
3422 		kaddrp = (caddr_t)contig_mem_alloc(length);
3423 		if (kaddrp == NULL) {
3424 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3425 			    "nxge_dma_mem_alloc:contig_mem_alloc failed."));
3426 			ddi_dma_free_handle(&dma_p->dma_handle);
3427 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3428 		}
3429 
3430 		dma_p->alength = length;
3431 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
3432 		    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
3433 		    &dma_p->dma_cookie, &dma_p->ncookies);
3434 		if (ddi_status != DDI_DMA_MAPPED) {
3435 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3436 			    "nxge_dma_mem_alloc:di_dma_addr_bind failed "
3437 			    "(status 0x%x ncookies %d.)", ddi_status,
3438 			    dma_p->ncookies));
3439 
3440 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3441 			    "==> nxge_dma_mem_alloc: (not mapped)"
3442 			    "length %lu (0x%x) "
3443 			    "free contig kaddrp $%p "
3444 			    "va_to_pa $%p",
3445 			    length, length,
3446 			    kaddrp,
3447 			    va_to_pa(kaddrp)));
3448 
3449 
3450 			contig_mem_free((void *)kaddrp, length);
3451 			ddi_dma_free_handle(&dma_p->dma_handle);
3452 
3453 			dma_p->dma_handle = NULL;
3454 			dma_p->acc_handle = NULL;
3455 			dma_p->alength = NULL;
3456 			dma_p->kaddrp = NULL;
3457 
3458 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3459 		}
3460 
3461 		if (dma_p->ncookies != 1 ||
3462 		    (dma_p->dma_cookie.dmac_laddress == NULL)) {
3463 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3464 			    "nxge_dma_mem_alloc:di_dma_addr_bind > 1 "
3465 			    "cookie or "
3466 			    "dmac_laddress is NULL $%p size %d "
3467 			    " (status 0x%x ncookies %d.)",
3468 			    ddi_status,
3469 			    dma_p->dma_cookie.dmac_laddress,
3470 			    dma_p->dma_cookie.dmac_size,
3471 			    dma_p->ncookies));
3472 
3473 			contig_mem_free((void *)kaddrp, length);
3474 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3475 			ddi_dma_free_handle(&dma_p->dma_handle);
3476 
3477 			dma_p->alength = 0;
3478 			dma_p->dma_handle = NULL;
3479 			dma_p->acc_handle = NULL;
3480 			dma_p->kaddrp = NULL;
3481 
3482 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3483 		}
3484 		break;
3485 
3486 #else
3487 	case B_TRUE:
3488 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3489 		    "nxge_dma_mem_alloc: invalid alloc type for !sun4v"));
3490 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3491 #endif
3492 	}
3493 
3494 	dma_p->kaddrp = kaddrp;
3495 	dma_p->last_kaddrp = (unsigned char *)kaddrp +
3496 	    dma_p->alength - RXBUF_64B_ALIGNED;
3497 #if defined(__i386)
3498 	dma_p->ioaddr_pp =
3499 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
3500 #else
3501 	dma_p->ioaddr_pp = (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3502 #endif
3503 	dma_p->last_ioaddr_pp =
3504 #if defined(__i386)
3505 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress +
3506 #else
3507 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress +
3508 #endif
3509 	    dma_p->alength - RXBUF_64B_ALIGNED;
3510 
3511 	NPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
3512 
3513 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3514 	dma_p->orig_ioaddr_pp =
3515 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3516 	dma_p->orig_alength = length;
3517 	dma_p->orig_kaddrp = kaddrp;
3518 	dma_p->orig_vatopa = (uint64_t)va_to_pa(kaddrp);
3519 #endif
3520 
3521 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_dma_mem_alloc: "
3522 	    "dma buffer allocated: dma_p $%p "
3523 	    "return dmac_ladress from cookie $%p cookie dmac_size %d "
3524 	    "dma_p->ioaddr_p $%p "
3525 	    "dma_p->orig_ioaddr_p $%p "
3526 	    "orig_vatopa $%p "
3527 	    "alength %d (0x%x) "
3528 	    "kaddrp $%p "
3529 	    "length %d (0x%x)",
3530 	    dma_p,
3531 	    dma_p->dma_cookie.dmac_laddress, dma_p->dma_cookie.dmac_size,
3532 	    dma_p->ioaddr_pp,
3533 	    dma_p->orig_ioaddr_pp,
3534 	    dma_p->orig_vatopa,
3535 	    dma_p->alength, dma_p->alength,
3536 	    kaddrp,
3537 	    length, length));
3538 
3539 	return (NXGE_OK);
3540 }
3541 
3542 static void
3543 nxge_dma_mem_free(p_nxge_dma_common_t dma_p)
3544 {
3545 	if (dma_p->dma_handle != NULL) {
3546 		if (dma_p->ncookies) {
3547 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3548 			dma_p->ncookies = 0;
3549 		}
3550 		ddi_dma_free_handle(&dma_p->dma_handle);
3551 		dma_p->dma_handle = NULL;
3552 	}
3553 
3554 	if (dma_p->acc_handle != NULL) {
3555 		ddi_dma_mem_free(&dma_p->acc_handle);
3556 		dma_p->acc_handle = NULL;
3557 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3558 	}
3559 
3560 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3561 	if (dma_p->contig_alloc_type &&
3562 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3563 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_mem_free: "
3564 		    "kaddrp $%p (orig_kaddrp $%p)"
3565 		    "mem type %d ",
3566 		    "orig_alength %d "
3567 		    "alength 0x%x (%d)",
3568 		    dma_p->kaddrp,
3569 		    dma_p->orig_kaddrp,
3570 		    dma_p->contig_alloc_type,
3571 		    dma_p->orig_alength,
3572 		    dma_p->alength, dma_p->alength));
3573 
3574 		contig_mem_free(dma_p->orig_kaddrp, dma_p->orig_alength);
3575 		dma_p->orig_alength = NULL;
3576 		dma_p->orig_kaddrp = NULL;
3577 		dma_p->contig_alloc_type = B_FALSE;
3578 	}
3579 #endif
3580 	dma_p->kaddrp = NULL;
3581 	dma_p->alength = NULL;
3582 }
3583 
3584 static void
3585 nxge_dma_free_rx_data_buf(p_nxge_dma_common_t dma_p)
3586 {
3587 	uint64_t kaddr;
3588 	uint32_t buf_size;
3589 
3590 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "==> nxge_dma_free_rx_data_buf"));
3591 
3592 	if (dma_p->dma_handle != NULL) {
3593 		if (dma_p->ncookies) {
3594 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3595 			dma_p->ncookies = 0;
3596 		}
3597 		ddi_dma_free_handle(&dma_p->dma_handle);
3598 		dma_p->dma_handle = NULL;
3599 	}
3600 
3601 	if (dma_p->acc_handle != NULL) {
3602 		ddi_dma_mem_free(&dma_p->acc_handle);
3603 		dma_p->acc_handle = NULL;
3604 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3605 	}
3606 
3607 	NXGE_DEBUG_MSG((NULL, DMA_CTL,
3608 	    "==> nxge_dma_free_rx_data_buf: dmap $%p buf_alloc_state %d",
3609 	    dma_p,
3610 	    dma_p->buf_alloc_state));
3611 
3612 	if (!(dma_p->buf_alloc_state & BUF_ALLOCATED_WAIT_FREE)) {
3613 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3614 		    "<== nxge_dma_free_rx_data_buf: "
3615 		    "outstanding data buffers"));
3616 		return;
3617 	}
3618 
3619 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3620 	if (dma_p->contig_alloc_type &&
3621 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3622 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_free_rx_data_buf: "
3623 		    "kaddrp $%p (orig_kaddrp $%p)"
3624 		    "mem type %d ",
3625 		    "orig_alength %d "
3626 		    "alength 0x%x (%d)",
3627 		    dma_p->kaddrp,
3628 		    dma_p->orig_kaddrp,
3629 		    dma_p->contig_alloc_type,
3630 		    dma_p->orig_alength,
3631 		    dma_p->alength, dma_p->alength));
3632 
3633 		kaddr = (uint64_t)dma_p->orig_kaddrp;
3634 		buf_size = dma_p->orig_alength;
3635 		nxge_free_buf(CONTIG_MEM_ALLOC, kaddr, buf_size);
3636 		dma_p->orig_alength = NULL;
3637 		dma_p->orig_kaddrp = NULL;
3638 		dma_p->contig_alloc_type = B_FALSE;
3639 		dma_p->kaddrp = NULL;
3640 		dma_p->alength = NULL;
3641 		return;
3642 	}
3643 #endif
3644 
3645 	if (dma_p->kmem_alloc_type) {
3646 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3647 		    "nxge_dma_free_rx_data_buf: free kmem "
3648 		    "kaddrp $%p (orig_kaddrp $%p)"
3649 		    "alloc type %d "
3650 		    "orig_alength %d "
3651 		    "alength 0x%x (%d)",
3652 		    dma_p->kaddrp,
3653 		    dma_p->orig_kaddrp,
3654 		    dma_p->kmem_alloc_type,
3655 		    dma_p->orig_alength,
3656 		    dma_p->alength, dma_p->alength));
3657 #if defined(__i386)
3658 		kaddr = (uint64_t)(uint32_t)dma_p->kaddrp;
3659 #else
3660 		kaddr = (uint64_t)dma_p->kaddrp;
3661 #endif
3662 		buf_size = dma_p->orig_alength;
3663 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3664 		    "nxge_dma_free_rx_data_buf: free dmap $%p "
3665 		    "kaddr $%p buf_size %d",
3666 		    dma_p,
3667 		    kaddr, buf_size));
3668 		nxge_free_buf(KMEM_ALLOC, kaddr, buf_size);
3669 		dma_p->alength = 0;
3670 		dma_p->orig_alength = 0;
3671 		dma_p->kaddrp = NULL;
3672 		dma_p->kmem_alloc_type = B_FALSE;
3673 	}
3674 
3675 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "<== nxge_dma_free_rx_data_buf"));
3676 }
3677 
3678 /*
3679  *	nxge_m_start() -- start transmitting and receiving.
3680  *
3681  *	This function is called by the MAC layer when the first
3682  *	stream is open to prepare the hardware ready for sending
3683  *	and transmitting packets.
3684  */
3685 static int
3686 nxge_m_start(void *arg)
3687 {
3688 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3689 
3690 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_start"));
3691 
3692 	if (nxge_peu_reset_enable && !nxgep->nxge_link_poll_timerid) {
3693 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
3694 	}
3695 
3696 	MUTEX_ENTER(nxgep->genlock);
3697 	if (nxge_init(nxgep) != NXGE_OK) {
3698 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3699 		    "<== nxge_m_start: initialization failed"));
3700 		MUTEX_EXIT(nxgep->genlock);
3701 		return (EIO);
3702 	}
3703 
3704 	if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
3705 		goto nxge_m_start_exit;
3706 	/*
3707 	 * Start timer to check the system error and tx hangs
3708 	 */
3709 	if (!isLDOMguest(nxgep))
3710 		nxgep->nxge_timerid = nxge_start_timer(nxgep,
3711 		    nxge_check_hw_state, NXGE_CHECK_TIMER);
3712 #if	defined(sun4v)
3713 	else
3714 		nxge_hio_start_timer(nxgep);
3715 #endif
3716 
3717 	nxgep->link_notify = B_TRUE;
3718 
3719 	nxgep->nxge_mac_state = NXGE_MAC_STARTED;
3720 
3721 nxge_m_start_exit:
3722 	MUTEX_EXIT(nxgep->genlock);
3723 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_start"));
3724 	return (0);
3725 }
3726 
3727 
3728 static boolean_t
3729 nxge_check_groups_stopped(p_nxge_t nxgep)
3730 {
3731 	int	i;
3732 
3733 	for (i = 0; i < NXGE_MAX_RDC_GROUPS; i++) {
3734 		if (nxgep->rx_hio_groups[i].started)
3735 			return (B_FALSE);
3736 	}
3737 
3738 	return (B_TRUE);
3739 }
3740 
3741 /*
3742  *	nxge_m_stop(): stop transmitting and receiving.
3743  */
3744 static void
3745 nxge_m_stop(void *arg)
3746 {
3747 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3748 	boolean_t	groups_stopped;
3749 
3750 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_stop"));
3751 
3752 	groups_stopped = nxge_check_groups_stopped(nxgep);
3753 #ifdef later
3754 	ASSERT(groups_stopped == B_FALSE);
3755 #endif
3756 
3757 	if (!groups_stopped) {
3758 		cmn_err(CE_WARN, "nxge(%d): groups are not stopped!\n",
3759 		    nxgep->instance);
3760 		return;
3761 	}
3762 
3763 	MUTEX_ENTER(nxgep->genlock);
3764 	nxgep->nxge_mac_state = NXGE_MAC_STOPPING;
3765 
3766 	if (nxgep->nxge_timerid) {
3767 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
3768 		nxgep->nxge_timerid = 0;
3769 	}
3770 
3771 	nxge_uninit(nxgep);
3772 
3773 	nxgep->nxge_mac_state = NXGE_MAC_STOPPED;
3774 
3775 	MUTEX_EXIT(nxgep->genlock);
3776 
3777 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_stop"));
3778 }
3779 
3780 static int
3781 nxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
3782 {
3783 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3784 	struct 		ether_addr addrp;
3785 
3786 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3787 	    "==> nxge_m_multicst: add %d", add));
3788 
3789 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
3790 	if (add) {
3791 		if (nxge_add_mcast_addr(nxgep, &addrp)) {
3792 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3793 			    "<== nxge_m_multicst: add multicast failed"));
3794 			return (EINVAL);
3795 		}
3796 	} else {
3797 		if (nxge_del_mcast_addr(nxgep, &addrp)) {
3798 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3799 			    "<== nxge_m_multicst: del multicast failed"));
3800 			return (EINVAL);
3801 		}
3802 	}
3803 
3804 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_multicst"));
3805 
3806 	return (0);
3807 }
3808 
3809 static int
3810 nxge_m_promisc(void *arg, boolean_t on)
3811 {
3812 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3813 
3814 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3815 	    "==> nxge_m_promisc: on %d", on));
3816 
3817 	if (nxge_set_promisc(nxgep, on)) {
3818 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3819 		    "<== nxge_m_promisc: set promisc failed"));
3820 		return (EINVAL);
3821 	}
3822 
3823 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3824 	    "<== nxge_m_promisc: on %d", on));
3825 
3826 	return (0);
3827 }
3828 
3829 static void
3830 nxge_m_ioctl(void *arg,  queue_t *wq, mblk_t *mp)
3831 {
3832 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3833 	struct 		iocblk *iocp;
3834 	boolean_t 	need_privilege;
3835 	int 		err;
3836 	int 		cmd;
3837 
3838 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl"));
3839 
3840 	iocp = (struct iocblk *)mp->b_rptr;
3841 	iocp->ioc_error = 0;
3842 	need_privilege = B_TRUE;
3843 	cmd = iocp->ioc_cmd;
3844 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl: cmd 0x%08x", cmd));
3845 	switch (cmd) {
3846 	default:
3847 		miocnak(wq, mp, 0, EINVAL);
3848 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl: invalid"));
3849 		return;
3850 
3851 	case LB_GET_INFO_SIZE:
3852 	case LB_GET_INFO:
3853 	case LB_GET_MODE:
3854 		need_privilege = B_FALSE;
3855 		break;
3856 	case LB_SET_MODE:
3857 		break;
3858 
3859 
3860 	case NXGE_GET_MII:
3861 	case NXGE_PUT_MII:
3862 	case NXGE_GET64:
3863 	case NXGE_PUT64:
3864 	case NXGE_GET_TX_RING_SZ:
3865 	case NXGE_GET_TX_DESC:
3866 	case NXGE_TX_SIDE_RESET:
3867 	case NXGE_RX_SIDE_RESET:
3868 	case NXGE_GLOBAL_RESET:
3869 	case NXGE_RESET_MAC:
3870 	case NXGE_TX_REGS_DUMP:
3871 	case NXGE_RX_REGS_DUMP:
3872 	case NXGE_INT_REGS_DUMP:
3873 	case NXGE_VIR_INT_REGS_DUMP:
3874 	case NXGE_PUT_TCAM:
3875 	case NXGE_GET_TCAM:
3876 	case NXGE_RTRACE:
3877 	case NXGE_RDUMP:
3878 
3879 		need_privilege = B_FALSE;
3880 		break;
3881 	case NXGE_INJECT_ERR:
3882 		cmn_err(CE_NOTE, "!nxge_m_ioctl: Inject error\n");
3883 		nxge_err_inject(nxgep, wq, mp);
3884 		break;
3885 	}
3886 
3887 	if (need_privilege) {
3888 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
3889 		if (err != 0) {
3890 			miocnak(wq, mp, 0, err);
3891 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3892 			    "<== nxge_m_ioctl: no priv"));
3893 			return;
3894 		}
3895 	}
3896 
3897 	switch (cmd) {
3898 
3899 	case LB_GET_MODE:
3900 	case LB_SET_MODE:
3901 	case LB_GET_INFO_SIZE:
3902 	case LB_GET_INFO:
3903 		nxge_loopback_ioctl(nxgep, wq, mp, iocp);
3904 		break;
3905 
3906 	case NXGE_GET_MII:
3907 	case NXGE_PUT_MII:
3908 	case NXGE_PUT_TCAM:
3909 	case NXGE_GET_TCAM:
3910 	case NXGE_GET64:
3911 	case NXGE_PUT64:
3912 	case NXGE_GET_TX_RING_SZ:
3913 	case NXGE_GET_TX_DESC:
3914 	case NXGE_TX_SIDE_RESET:
3915 	case NXGE_RX_SIDE_RESET:
3916 	case NXGE_GLOBAL_RESET:
3917 	case NXGE_RESET_MAC:
3918 	case NXGE_TX_REGS_DUMP:
3919 	case NXGE_RX_REGS_DUMP:
3920 	case NXGE_INT_REGS_DUMP:
3921 	case NXGE_VIR_INT_REGS_DUMP:
3922 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
3923 		    "==> nxge_m_ioctl: cmd 0x%x", cmd));
3924 		nxge_hw_ioctl(nxgep, wq, mp, iocp);
3925 		break;
3926 	}
3927 
3928 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl"));
3929 }
3930 
3931 extern void nxge_rx_hw_blank(void *arg, time_t ticks, uint_t count);
3932 
3933 void
3934 nxge_mmac_kstat_update(p_nxge_t nxgep, int slot, boolean_t factory)
3935 {
3936 	p_nxge_mmac_stats_t mmac_stats;
3937 	int i;
3938 	nxge_mmac_t *mmac_info;
3939 
3940 	mmac_info = &nxgep->nxge_mmac_info;
3941 
3942 	mmac_stats = &nxgep->statsp->mmac_stats;
3943 	mmac_stats->mmac_max_cnt = mmac_info->num_mmac;
3944 	mmac_stats->mmac_avail_cnt = mmac_info->naddrfree;
3945 
3946 	for (i = 0; i < ETHERADDRL; i++) {
3947 		if (factory) {
3948 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3949 			    = mmac_info->factory_mac_pool[slot][
3950 			    (ETHERADDRL-1) - i];
3951 		} else {
3952 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3953 			    = mmac_info->mac_pool[slot].addr[
3954 			    (ETHERADDRL - 1) - i];
3955 		}
3956 	}
3957 }
3958 
3959 /*
3960  * nxge_altmac_set() -- Set an alternate MAC address
3961  */
3962 static int
3963 nxge_altmac_set(p_nxge_t nxgep, uint8_t *maddr, int slot,
3964 	int rdctbl, boolean_t usetbl)
3965 {
3966 	uint8_t addrn;
3967 	uint8_t portn;
3968 	npi_mac_addr_t altmac;
3969 	hostinfo_t mac_rdc;
3970 	p_nxge_class_pt_cfg_t clscfgp;
3971 
3972 
3973 	altmac.w2 = ((uint16_t)maddr[0] << 8) | ((uint16_t)maddr[1] & 0x0ff);
3974 	altmac.w1 = ((uint16_t)maddr[2] << 8) | ((uint16_t)maddr[3] & 0x0ff);
3975 	altmac.w0 = ((uint16_t)maddr[4] << 8) | ((uint16_t)maddr[5] & 0x0ff);
3976 
3977 	portn = nxgep->mac.portnum;
3978 	addrn = (uint8_t)slot - 1;
3979 
3980 	if (npi_mac_altaddr_entry(nxgep->npi_handle, OP_SET,
3981 	    nxgep->function_num, addrn, &altmac) != NPI_SUCCESS)
3982 		return (EIO);
3983 
3984 	/*
3985 	 * Set the rdc table number for the host info entry
3986 	 * for this mac address slot.
3987 	 */
3988 	clscfgp = (p_nxge_class_pt_cfg_t)&nxgep->class_config;
3989 	mac_rdc.value = 0;
3990 	if (usetbl)
3991 		mac_rdc.bits.w0.rdc_tbl_num = rdctbl;
3992 	else
3993 		mac_rdc.bits.w0.rdc_tbl_num =
3994 		    clscfgp->mac_host_info[addrn].rdctbl;
3995 	mac_rdc.bits.w0.mac_pref = clscfgp->mac_host_info[addrn].mpr_npr;
3996 
3997 	if (npi_mac_hostinfo_entry(nxgep->npi_handle, OP_SET,
3998 	    nxgep->function_num, addrn, &mac_rdc) != NPI_SUCCESS) {
3999 		return (EIO);
4000 	}
4001 
4002 	/*
4003 	 * Enable comparison with the alternate MAC address.
4004 	 * While the first alternate addr is enabled by bit 1 of register
4005 	 * BMAC_ALTAD_CMPEN, it is enabled by bit 0 of register
4006 	 * XMAC_ADDR_CMPEN, so slot needs to be converted to addrn
4007 	 * accordingly before calling npi_mac_altaddr_entry.
4008 	 */
4009 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4010 		addrn = (uint8_t)slot - 1;
4011 	else
4012 		addrn = (uint8_t)slot;
4013 
4014 	if (npi_mac_altaddr_enable(nxgep->npi_handle,
4015 	    nxgep->function_num, addrn) != NPI_SUCCESS) {
4016 		return (EIO);
4017 	}
4018 
4019 	return (0);
4020 }
4021 
4022 /*
4023  * nxeg_m_mmac_add_g() - find an unused address slot, set the address
4024  * value to the one specified, enable the port to start filtering on
4025  * the new MAC address.  Returns 0 on success.
4026  */
4027 int
4028 nxge_m_mmac_add_g(void *arg, const uint8_t *maddr, int rdctbl,
4029 	boolean_t usetbl)
4030 {
4031 	p_nxge_t nxgep = arg;
4032 	int slot;
4033 	nxge_mmac_t *mmac_info;
4034 	int err;
4035 	nxge_status_t status;
4036 
4037 	mutex_enter(nxgep->genlock);
4038 
4039 	/*
4040 	 * Make sure that nxge is initialized, if _start() has
4041 	 * not been called.
4042 	 */
4043 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4044 		status = nxge_init(nxgep);
4045 		if (status != NXGE_OK) {
4046 			mutex_exit(nxgep->genlock);
4047 			return (ENXIO);
4048 		}
4049 	}
4050 
4051 	mmac_info = &nxgep->nxge_mmac_info;
4052 	if (mmac_info->naddrfree == 0) {
4053 		mutex_exit(nxgep->genlock);
4054 		return (ENOSPC);
4055 	}
4056 
4057 	/*
4058 	 * 	Search for the first available slot. Because naddrfree
4059 	 * is not zero, we are guaranteed to find one.
4060 	 *	Each of the first two ports of Neptune has 16 alternate
4061 	 * MAC slots but only the first 7 (of 15) slots have assigned factory
4062 	 * MAC addresses. We first search among the slots without bundled
4063 	 * factory MACs. If we fail to find one in that range, then we
4064 	 * search the slots with bundled factory MACs.  A factory MAC
4065 	 * will be wasted while the slot is used with a user MAC address.
4066 	 * But the slot could be used by factory MAC again after calling
4067 	 * nxge_m_mmac_remove and nxge_m_mmac_reserve.
4068 	 */
4069 	for (slot = 0; slot <= mmac_info->num_mmac; slot++) {
4070 		if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
4071 			break;
4072 	}
4073 
4074 	ASSERT(slot <= mmac_info->num_mmac);
4075 
4076 	if ((err = nxge_altmac_set(nxgep, (uint8_t *)maddr, slot, rdctbl,
4077 	    usetbl)) != 0) {
4078 		mutex_exit(nxgep->genlock);
4079 		return (err);
4080 	}
4081 
4082 	bcopy(maddr, mmac_info->mac_pool[slot].addr, ETHERADDRL);
4083 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED;
4084 	mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
4085 	mmac_info->naddrfree--;
4086 	nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4087 
4088 	mutex_exit(nxgep->genlock);
4089 	return (0);
4090 }
4091 
4092 /*
4093  * Remove the specified mac address and update the HW not to filter
4094  * the mac address anymore.
4095  */
4096 int
4097 nxge_m_mmac_remove(void *arg, int slot)
4098 {
4099 	p_nxge_t nxgep = arg;
4100 	nxge_mmac_t *mmac_info;
4101 	uint8_t addrn;
4102 	uint8_t portn;
4103 	int err = 0;
4104 	nxge_status_t status;
4105 
4106 	mutex_enter(nxgep->genlock);
4107 
4108 	/*
4109 	 * Make sure that nxge is initialized, if _start() has
4110 	 * not been called.
4111 	 */
4112 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4113 		status = nxge_init(nxgep);
4114 		if (status != NXGE_OK) {
4115 			mutex_exit(nxgep->genlock);
4116 			return (ENXIO);
4117 		}
4118 	}
4119 
4120 	mmac_info = &nxgep->nxge_mmac_info;
4121 	if (slot < 1 || slot > mmac_info->num_mmac) {
4122 		mutex_exit(nxgep->genlock);
4123 		return (EINVAL);
4124 	}
4125 
4126 	portn = nxgep->mac.portnum;
4127 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4128 		addrn = (uint8_t)slot - 1;
4129 	else
4130 		addrn = (uint8_t)slot;
4131 
4132 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
4133 		if (npi_mac_altaddr_disable(nxgep->npi_handle, portn, addrn)
4134 		    == NPI_SUCCESS) {
4135 			mmac_info->naddrfree++;
4136 			mmac_info->mac_pool[slot].flags &= ~MMAC_SLOT_USED;
4137 			/*
4138 			 * Regardless if the MAC we just stopped filtering
4139 			 * is a user addr or a facory addr, we must set
4140 			 * the MMAC_VENDOR_ADDR flag if this slot has an
4141 			 * associated factory MAC to indicate that a factory
4142 			 * MAC is available.
4143 			 */
4144 			if (slot <= mmac_info->num_factory_mmac) {
4145 				mmac_info->mac_pool[slot].flags
4146 				    |= MMAC_VENDOR_ADDR;
4147 			}
4148 			/*
4149 			 * Clear mac_pool[slot].addr so that kstat shows 0
4150 			 * alternate MAC address if the slot is not used.
4151 			 * (But nxge_m_mmac_get returns the factory MAC even
4152 			 * when the slot is not used!)
4153 			 */
4154 			bzero(mmac_info->mac_pool[slot].addr, ETHERADDRL);
4155 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4156 		} else {
4157 			err = EIO;
4158 		}
4159 	} else {
4160 		err = EINVAL;
4161 	}
4162 
4163 	mutex_exit(nxgep->genlock);
4164 	return (err);
4165 }
4166 
4167 /*
4168  * The callback to query all the factory addresses. naddr must be the same as
4169  * the number of factory addresses (returned by MAC_CAPAB_MULTIFACTADDR), and
4170  * mcm_addr is the space allocated for keep all the addresses, whose size is
4171  * naddr * MAXMACADDRLEN.
4172  */
4173 static void
4174 nxge_m_getfactaddr(void *arg, uint_t naddr, uint8_t *addr)
4175 {
4176 	nxge_t		*nxgep = arg;
4177 	nxge_mmac_t	*mmac_info;
4178 	int		i;
4179 
4180 	mutex_enter(nxgep->genlock);
4181 
4182 	mmac_info = &nxgep->nxge_mmac_info;
4183 	ASSERT(naddr == mmac_info->num_factory_mmac);
4184 
4185 	for (i = 0; i < naddr; i++) {
4186 		bcopy(mmac_info->factory_mac_pool[i + 1],
4187 		    addr + i * MAXMACADDRLEN, ETHERADDRL);
4188 	}
4189 
4190 	mutex_exit(nxgep->genlock);
4191 }
4192 
4193 
4194 static boolean_t
4195 nxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
4196 {
4197 	nxge_t *nxgep = arg;
4198 	uint32_t *txflags = cap_data;
4199 
4200 	switch (cap) {
4201 	case MAC_CAPAB_HCKSUM:
4202 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4203 		    "==> nxge_m_getcapab: checksum %d", nxge_cksum_offload));
4204 		if (nxge_cksum_offload <= 1) {
4205 			*txflags = HCKSUM_INET_PARTIAL;
4206 		}
4207 		break;
4208 
4209 	case MAC_CAPAB_MULTIFACTADDR: {
4210 		mac_capab_multifactaddr_t	*mfacp = cap_data;
4211 
4212 		mutex_enter(nxgep->genlock);
4213 		mfacp->mcm_naddr = nxgep->nxge_mmac_info.num_factory_mmac;
4214 		mfacp->mcm_getaddr = nxge_m_getfactaddr;
4215 		mutex_exit(nxgep->genlock);
4216 		break;
4217 	}
4218 
4219 	case MAC_CAPAB_LSO: {
4220 		mac_capab_lso_t *cap_lso = cap_data;
4221 
4222 		if (nxgep->soft_lso_enable) {
4223 			if (nxge_cksum_offload <= 1) {
4224 				cap_lso->lso_flags = LSO_TX_BASIC_TCP_IPV4;
4225 				if (nxge_lso_max > NXGE_LSO_MAXLEN) {
4226 					nxge_lso_max = NXGE_LSO_MAXLEN;
4227 				}
4228 				cap_lso->lso_basic_tcp_ipv4.lso_max =
4229 				    nxge_lso_max;
4230 			}
4231 			break;
4232 		} else {
4233 			return (B_FALSE);
4234 		}
4235 	}
4236 
4237 	case MAC_CAPAB_RINGS: {
4238 		mac_capab_rings_t	*cap_rings = cap_data;
4239 		p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
4240 
4241 		mutex_enter(nxgep->genlock);
4242 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
4243 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4244 			cap_rings->mr_rnum = p_cfgp->max_rdcs;
4245 			cap_rings->mr_rget = nxge_fill_ring;
4246 			cap_rings->mr_gnum = p_cfgp->max_rdc_grpids;
4247 			cap_rings->mr_gget = nxge_hio_group_get;
4248 			cap_rings->mr_gaddring = nxge_group_add_ring;
4249 			cap_rings->mr_gremring = nxge_group_rem_ring;
4250 
4251 			NXGE_DEBUG_MSG((nxgep, RX_CTL,
4252 			    "==> nxge_m_getcapab: rx nrings[%d] ngroups[%d]",
4253 			    p_cfgp->max_rdcs, p_cfgp->max_rdc_grpids));
4254 		} else {
4255 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4256 			cap_rings->mr_rnum = p_cfgp->tdc.count;
4257 			cap_rings->mr_rget = nxge_fill_ring;
4258 			if (isLDOMservice(nxgep)) {
4259 				/* share capable */
4260 				/* Do not report the default ring: hence -1 */
4261 				cap_rings->mr_gnum =
4262 				    NXGE_MAX_TDC_GROUPS / nxgep->nports - 1;
4263 			} else {
4264 				cap_rings->mr_gnum = 0;
4265 			}
4266 
4267 			cap_rings->mr_gget = nxge_hio_group_get;
4268 			cap_rings->mr_gaddring = nxge_group_add_ring;
4269 			cap_rings->mr_gremring = nxge_group_rem_ring;
4270 
4271 			NXGE_DEBUG_MSG((nxgep, TX_CTL,
4272 			    "==> nxge_m_getcapab: tx rings # of rings %d",
4273 			    p_cfgp->tdc.count));
4274 		}
4275 		mutex_exit(nxgep->genlock);
4276 		break;
4277 	}
4278 
4279 #if defined(sun4v)
4280 	case MAC_CAPAB_SHARES: {
4281 		mac_capab_share_t *mshares = (mac_capab_share_t *)cap_data;
4282 
4283 		/*
4284 		 * Only the service domain driver responds to
4285 		 * this capability request.
4286 		 */
4287 		mutex_enter(nxgep->genlock);
4288 		if (isLDOMservice(nxgep)) {
4289 			mshares->ms_snum = 3;
4290 			mshares->ms_handle = (void *)nxgep;
4291 			mshares->ms_salloc = nxge_hio_share_alloc;
4292 			mshares->ms_sfree = nxge_hio_share_free;
4293 			mshares->ms_sadd = nxge_hio_share_add_group;
4294 			mshares->ms_sremove = nxge_hio_share_rem_group;
4295 			mshares->ms_squery = nxge_hio_share_query;
4296 			mshares->ms_sbind = nxge_hio_share_bind;
4297 			mshares->ms_sunbind = nxge_hio_share_unbind;
4298 			mutex_exit(nxgep->genlock);
4299 		} else {
4300 			mutex_exit(nxgep->genlock);
4301 			return (B_FALSE);
4302 		}
4303 		break;
4304 	}
4305 #endif
4306 	default:
4307 		return (B_FALSE);
4308 	}
4309 	return (B_TRUE);
4310 }
4311 
4312 static boolean_t
4313 nxge_param_locked(mac_prop_id_t pr_num)
4314 {
4315 	/*
4316 	 * All adv_* parameters are locked (read-only) while
4317 	 * the device is in any sort of loopback mode ...
4318 	 */
4319 	switch (pr_num) {
4320 		case MAC_PROP_ADV_1000FDX_CAP:
4321 		case MAC_PROP_EN_1000FDX_CAP:
4322 		case MAC_PROP_ADV_1000HDX_CAP:
4323 		case MAC_PROP_EN_1000HDX_CAP:
4324 		case MAC_PROP_ADV_100FDX_CAP:
4325 		case MAC_PROP_EN_100FDX_CAP:
4326 		case MAC_PROP_ADV_100HDX_CAP:
4327 		case MAC_PROP_EN_100HDX_CAP:
4328 		case MAC_PROP_ADV_10FDX_CAP:
4329 		case MAC_PROP_EN_10FDX_CAP:
4330 		case MAC_PROP_ADV_10HDX_CAP:
4331 		case MAC_PROP_EN_10HDX_CAP:
4332 		case MAC_PROP_AUTONEG:
4333 		case MAC_PROP_FLOWCTRL:
4334 			return (B_TRUE);
4335 	}
4336 	return (B_FALSE);
4337 }
4338 
4339 /*
4340  * callback functions for set/get of properties
4341  */
4342 static int
4343 nxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4344     uint_t pr_valsize, const void *pr_val)
4345 {
4346 	nxge_t		*nxgep = barg;
4347 	p_nxge_param_t	param_arr;
4348 	p_nxge_stats_t	statsp;
4349 	int		err = 0;
4350 	uint8_t		val;
4351 	uint32_t	cur_mtu, new_mtu, old_framesize;
4352 	link_flowctrl_t	fl;
4353 
4354 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_setprop"));
4355 	param_arr = nxgep->param_arr;
4356 	statsp = nxgep->statsp;
4357 	mutex_enter(nxgep->genlock);
4358 	if (statsp->port_stats.lb_mode != nxge_lb_normal &&
4359 	    nxge_param_locked(pr_num)) {
4360 		/*
4361 		 * All adv_* parameters are locked (read-only)
4362 		 * while the device is in any sort of loopback mode.
4363 		 */
4364 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4365 		    "==> nxge_m_setprop: loopback mode: read only"));
4366 		mutex_exit(nxgep->genlock);
4367 		return (EBUSY);
4368 	}
4369 
4370 	val = *(uint8_t *)pr_val;
4371 	switch (pr_num) {
4372 		case MAC_PROP_EN_1000FDX_CAP:
4373 			nxgep->param_en_1000fdx = val;
4374 			param_arr[param_anar_1000fdx].value = val;
4375 
4376 			goto reprogram;
4377 
4378 		case MAC_PROP_EN_100FDX_CAP:
4379 			nxgep->param_en_100fdx = val;
4380 			param_arr[param_anar_100fdx].value = val;
4381 
4382 			goto reprogram;
4383 
4384 		case MAC_PROP_EN_10FDX_CAP:
4385 			nxgep->param_en_10fdx = val;
4386 			param_arr[param_anar_10fdx].value = val;
4387 
4388 			goto reprogram;
4389 
4390 		case MAC_PROP_EN_1000HDX_CAP:
4391 		case MAC_PROP_EN_100HDX_CAP:
4392 		case MAC_PROP_EN_10HDX_CAP:
4393 		case MAC_PROP_ADV_1000FDX_CAP:
4394 		case MAC_PROP_ADV_1000HDX_CAP:
4395 		case MAC_PROP_ADV_100FDX_CAP:
4396 		case MAC_PROP_ADV_100HDX_CAP:
4397 		case MAC_PROP_ADV_10FDX_CAP:
4398 		case MAC_PROP_ADV_10HDX_CAP:
4399 		case MAC_PROP_STATUS:
4400 		case MAC_PROP_SPEED:
4401 		case MAC_PROP_DUPLEX:
4402 			err = EINVAL; /* cannot set read-only properties */
4403 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4404 			    "==> nxge_m_setprop:  read only property %d",
4405 			    pr_num));
4406 			break;
4407 
4408 		case MAC_PROP_AUTONEG:
4409 			param_arr[param_autoneg].value = val;
4410 
4411 			goto reprogram;
4412 
4413 		case MAC_PROP_MTU:
4414 			cur_mtu = nxgep->mac.default_mtu;
4415 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
4416 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4417 			    "==> nxge_m_setprop: set MTU: %d is_jumbo %d",
4418 			    new_mtu, nxgep->mac.is_jumbo));
4419 
4420 			if (new_mtu == cur_mtu) {
4421 				err = 0;
4422 				break;
4423 			}
4424 			if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
4425 				err = EBUSY;
4426 				break;
4427 			}
4428 			if (new_mtu < NXGE_DEFAULT_MTU ||
4429 			    new_mtu > NXGE_MAXIMUM_MTU) {
4430 				err = EINVAL;
4431 				break;
4432 			}
4433 
4434 			if ((new_mtu > NXGE_DEFAULT_MTU) &&
4435 			    !nxgep->mac.is_jumbo) {
4436 				err = EINVAL;
4437 				break;
4438 			}
4439 
4440 			old_framesize = (uint32_t)nxgep->mac.maxframesize;
4441 			nxgep->mac.maxframesize = (uint16_t)
4442 			    (new_mtu + NXGE_EHEADER_VLAN_CRC);
4443 			if (nxge_mac_set_framesize(nxgep)) {
4444 				nxgep->mac.maxframesize =
4445 				    (uint16_t)old_framesize;
4446 				err = EINVAL;
4447 				break;
4448 			}
4449 
4450 			err = mac_maxsdu_update(nxgep->mach, new_mtu);
4451 			if (err) {
4452 				nxgep->mac.maxframesize =
4453 				    (uint16_t)old_framesize;
4454 				err = EINVAL;
4455 				break;
4456 			}
4457 
4458 			nxgep->mac.default_mtu = new_mtu;
4459 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4460 			    "==> nxge_m_setprop: set MTU: %d maxframe %d",
4461 			    new_mtu, nxgep->mac.maxframesize));
4462 			break;
4463 
4464 		case MAC_PROP_FLOWCTRL:
4465 			bcopy(pr_val, &fl, sizeof (fl));
4466 			switch (fl) {
4467 			default:
4468 				err = EINVAL;
4469 				break;
4470 
4471 			case LINK_FLOWCTRL_NONE:
4472 				param_arr[param_anar_pause].value = 0;
4473 				break;
4474 
4475 			case LINK_FLOWCTRL_RX:
4476 				param_arr[param_anar_pause].value = 1;
4477 				break;
4478 
4479 			case LINK_FLOWCTRL_TX:
4480 			case LINK_FLOWCTRL_BI:
4481 				err = EINVAL;
4482 				break;
4483 			}
4484 
4485 reprogram:
4486 			if (err == 0) {
4487 				if (!nxge_param_link_update(nxgep)) {
4488 					err = EINVAL;
4489 				}
4490 			}
4491 			break;
4492 		case MAC_PROP_PRIVATE:
4493 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4494 			    "==> nxge_m_setprop: private property"));
4495 			err = nxge_set_priv_prop(nxgep, pr_name, pr_valsize,
4496 			    pr_val);
4497 			break;
4498 
4499 		default:
4500 			err = ENOTSUP;
4501 			break;
4502 	}
4503 
4504 	mutex_exit(nxgep->genlock);
4505 
4506 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4507 	    "<== nxge_m_setprop (return %d)", err));
4508 	return (err);
4509 }
4510 
4511 static int
4512 nxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4513     uint_t pr_flags, uint_t pr_valsize, void *pr_val, uint_t *perm)
4514 {
4515 	nxge_t 		*nxgep = barg;
4516 	p_nxge_param_t	param_arr = nxgep->param_arr;
4517 	p_nxge_stats_t	statsp = nxgep->statsp;
4518 	int		err = 0;
4519 	link_flowctrl_t	fl;
4520 	uint64_t	tmp = 0;
4521 	link_state_t	ls;
4522 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4523 
4524 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4525 	    "==> nxge_m_getprop: pr_num %d", pr_num));
4526 
4527 	if (pr_valsize == 0)
4528 		return (EINVAL);
4529 
4530 	*perm = MAC_PROP_PERM_RW;
4531 
4532 	if ((is_default) && (pr_num != MAC_PROP_PRIVATE)) {
4533 		err = nxge_get_def_val(nxgep, pr_num, pr_valsize, pr_val);
4534 		return (err);
4535 	}
4536 
4537 	bzero(pr_val, pr_valsize);
4538 	switch (pr_num) {
4539 		case MAC_PROP_DUPLEX:
4540 			*perm = MAC_PROP_PERM_READ;
4541 			*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
4542 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4543 			    "==> nxge_m_getprop: duplex mode %d",
4544 			    *(uint8_t *)pr_val));
4545 			break;
4546 
4547 		case MAC_PROP_SPEED:
4548 			if (pr_valsize < sizeof (uint64_t))
4549 				return (EINVAL);
4550 			*perm = MAC_PROP_PERM_READ;
4551 			tmp = statsp->mac_stats.link_speed * 1000000ull;
4552 			bcopy(&tmp, pr_val, sizeof (tmp));
4553 			break;
4554 
4555 		case MAC_PROP_STATUS:
4556 			if (pr_valsize < sizeof (link_state_t))
4557 				return (EINVAL);
4558 			*perm = MAC_PROP_PERM_READ;
4559 			if (!statsp->mac_stats.link_up)
4560 				ls = LINK_STATE_DOWN;
4561 			else
4562 				ls = LINK_STATE_UP;
4563 			bcopy(&ls, pr_val, sizeof (ls));
4564 			break;
4565 
4566 		case MAC_PROP_AUTONEG:
4567 			*(uint8_t *)pr_val =
4568 			    param_arr[param_autoneg].value;
4569 			break;
4570 
4571 		case MAC_PROP_FLOWCTRL:
4572 			if (pr_valsize < sizeof (link_flowctrl_t))
4573 				return (EINVAL);
4574 
4575 			fl = LINK_FLOWCTRL_NONE;
4576 			if (param_arr[param_anar_pause].value) {
4577 				fl = LINK_FLOWCTRL_RX;
4578 			}
4579 			bcopy(&fl, pr_val, sizeof (fl));
4580 			break;
4581 
4582 		case MAC_PROP_ADV_1000FDX_CAP:
4583 			*perm = MAC_PROP_PERM_READ;
4584 			*(uint8_t *)pr_val =
4585 			    param_arr[param_anar_1000fdx].value;
4586 			break;
4587 
4588 		case MAC_PROP_EN_1000FDX_CAP:
4589 			*(uint8_t *)pr_val = nxgep->param_en_1000fdx;
4590 			break;
4591 
4592 		case MAC_PROP_ADV_100FDX_CAP:
4593 			*perm = MAC_PROP_PERM_READ;
4594 			*(uint8_t *)pr_val =
4595 			    param_arr[param_anar_100fdx].value;
4596 			break;
4597 
4598 		case MAC_PROP_EN_100FDX_CAP:
4599 			*(uint8_t *)pr_val = nxgep->param_en_100fdx;
4600 			break;
4601 
4602 		case MAC_PROP_ADV_10FDX_CAP:
4603 			*perm = MAC_PROP_PERM_READ;
4604 			*(uint8_t *)pr_val =
4605 			    param_arr[param_anar_10fdx].value;
4606 			break;
4607 
4608 		case MAC_PROP_EN_10FDX_CAP:
4609 			*(uint8_t *)pr_val = nxgep->param_en_10fdx;
4610 			break;
4611 
4612 		case MAC_PROP_EN_1000HDX_CAP:
4613 		case MAC_PROP_EN_100HDX_CAP:
4614 		case MAC_PROP_EN_10HDX_CAP:
4615 		case MAC_PROP_ADV_1000HDX_CAP:
4616 		case MAC_PROP_ADV_100HDX_CAP:
4617 		case MAC_PROP_ADV_10HDX_CAP:
4618 			err = ENOTSUP;
4619 			break;
4620 
4621 		case MAC_PROP_PRIVATE:
4622 			err = nxge_get_priv_prop(nxgep, pr_name, pr_flags,
4623 			    pr_valsize, pr_val, perm);
4624 			break;
4625 		default:
4626 			err = EINVAL;
4627 			break;
4628 	}
4629 
4630 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_getprop"));
4631 
4632 	return (err);
4633 }
4634 
4635 /* ARGSUSED */
4636 static int
4637 nxge_set_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_valsize,
4638     const void *pr_val)
4639 {
4640 	p_nxge_param_t	param_arr = nxgep->param_arr;
4641 	int		err = 0;
4642 	long		result;
4643 
4644 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4645 	    "==> nxge_set_priv_prop: name %s", pr_name));
4646 
4647 	if (strcmp(pr_name, "_accept_jumbo") == 0) {
4648 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4649 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4650 		    "<== nxge_set_priv_prop: name %s "
4651 		    "pr_val %s result %d "
4652 		    "param %d is_jumbo %d",
4653 		    pr_name, pr_val, result,
4654 		    param_arr[param_accept_jumbo].value,
4655 		    nxgep->mac.is_jumbo));
4656 
4657 		if (result > 1 || result < 0) {
4658 			err = EINVAL;
4659 		} else {
4660 			if (nxgep->mac.is_jumbo ==
4661 			    (uint32_t)result) {
4662 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4663 				    "no change (%d %d)",
4664 				    nxgep->mac.is_jumbo,
4665 				    result));
4666 				return (0);
4667 			}
4668 		}
4669 
4670 		param_arr[param_accept_jumbo].value = result;
4671 		nxgep->mac.is_jumbo = B_FALSE;
4672 		if (result) {
4673 			nxgep->mac.is_jumbo = B_TRUE;
4674 		}
4675 
4676 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4677 		    "<== nxge_set_priv_prop: name %s (value %d) is_jumbo %d",
4678 		    pr_name, result, nxgep->mac.is_jumbo));
4679 
4680 		return (err);
4681 	}
4682 
4683 	/* Blanking */
4684 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
4685 		err = nxge_param_rx_intr_time(nxgep, NULL, NULL,
4686 		    (char *)pr_val,
4687 		    (caddr_t)&param_arr[param_rxdma_intr_time]);
4688 		if (err) {
4689 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4690 			    "<== nxge_set_priv_prop: "
4691 			    "unable to set (%s)", pr_name));
4692 			err = EINVAL;
4693 		} else {
4694 			err = 0;
4695 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4696 			    "<== nxge_set_priv_prop: "
4697 			    "set (%s)", pr_name));
4698 		}
4699 
4700 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4701 		    "<== nxge_set_priv_prop: name %s (value %d)",
4702 		    pr_name, result));
4703 
4704 		return (err);
4705 	}
4706 
4707 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
4708 		err = nxge_param_rx_intr_pkts(nxgep, NULL, NULL,
4709 		    (char *)pr_val,
4710 		    (caddr_t)&param_arr[param_rxdma_intr_pkts]);
4711 		if (err) {
4712 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4713 			    "<== nxge_set_priv_prop: "
4714 			    "unable to set (%s)", pr_name));
4715 			err = EINVAL;
4716 		} else {
4717 			err = 0;
4718 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4719 			    "<== nxge_set_priv_prop: "
4720 			    "set (%s)", pr_name));
4721 		}
4722 
4723 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4724 		    "<== nxge_set_priv_prop: name %s (value %d)",
4725 		    pr_name, result));
4726 
4727 		return (err);
4728 	}
4729 
4730 	/* Classification */
4731 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
4732 		if (pr_val == NULL) {
4733 			err = EINVAL;
4734 			return (err);
4735 		}
4736 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4737 
4738 		err = nxge_param_set_ip_opt(nxgep, NULL,
4739 		    NULL, (char *)pr_val,
4740 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
4741 
4742 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4743 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4744 		    pr_name, result));
4745 
4746 		return (err);
4747 	}
4748 
4749 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
4750 		if (pr_val == NULL) {
4751 			err = EINVAL;
4752 			return (err);
4753 		}
4754 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4755 
4756 		err = nxge_param_set_ip_opt(nxgep, NULL,
4757 		    NULL, (char *)pr_val,
4758 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
4759 
4760 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4761 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4762 		    pr_name, result));
4763 
4764 		return (err);
4765 	}
4766 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
4767 		if (pr_val == NULL) {
4768 			err = EINVAL;
4769 			return (err);
4770 		}
4771 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4772 
4773 		err = nxge_param_set_ip_opt(nxgep, NULL,
4774 		    NULL, (char *)pr_val,
4775 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
4776 
4777 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4778 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4779 		    pr_name, result));
4780 
4781 		return (err);
4782 	}
4783 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
4784 		if (pr_val == NULL) {
4785 			err = EINVAL;
4786 			return (err);
4787 		}
4788 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4789 
4790 		err = nxge_param_set_ip_opt(nxgep, NULL,
4791 		    NULL, (char *)pr_val,
4792 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
4793 
4794 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4795 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4796 		    pr_name, result));
4797 
4798 		return (err);
4799 	}
4800 
4801 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
4802 		if (pr_val == NULL) {
4803 			err = EINVAL;
4804 			return (err);
4805 		}
4806 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4807 
4808 		err = nxge_param_set_ip_opt(nxgep, NULL,
4809 		    NULL, (char *)pr_val,
4810 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
4811 
4812 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4813 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4814 		    pr_name, result));
4815 
4816 		return (err);
4817 	}
4818 
4819 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
4820 		if (pr_val == NULL) {
4821 			err = EINVAL;
4822 			return (err);
4823 		}
4824 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4825 
4826 		err = nxge_param_set_ip_opt(nxgep, NULL,
4827 		    NULL, (char *)pr_val,
4828 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
4829 
4830 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4831 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4832 		    pr_name, result));
4833 
4834 		return (err);
4835 	}
4836 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
4837 		if (pr_val == NULL) {
4838 			err = EINVAL;
4839 			return (err);
4840 		}
4841 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4842 
4843 		err = nxge_param_set_ip_opt(nxgep, NULL,
4844 		    NULL, (char *)pr_val,
4845 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
4846 
4847 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4848 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4849 		    pr_name, result));
4850 
4851 		return (err);
4852 	}
4853 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
4854 		if (pr_val == NULL) {
4855 			err = EINVAL;
4856 			return (err);
4857 		}
4858 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4859 
4860 		err = nxge_param_set_ip_opt(nxgep, NULL,
4861 		    NULL, (char *)pr_val,
4862 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
4863 
4864 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4865 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4866 		    pr_name, result));
4867 
4868 		return (err);
4869 	}
4870 
4871 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
4872 		if (pr_val == NULL) {
4873 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4874 			    "==> nxge_set_priv_prop: name %s (null)", pr_name));
4875 			err = EINVAL;
4876 			return (err);
4877 		}
4878 
4879 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4880 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4881 		    "<== nxge_set_priv_prop: name %s "
4882 		    "(lso %d pr_val %s value %d)",
4883 		    pr_name, nxgep->soft_lso_enable, pr_val, result));
4884 
4885 		if (result > 1 || result < 0) {
4886 			err = EINVAL;
4887 		} else {
4888 			if (nxgep->soft_lso_enable == (uint32_t)result) {
4889 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4890 				    "no change (%d %d)",
4891 				    nxgep->soft_lso_enable, result));
4892 				return (0);
4893 			}
4894 		}
4895 
4896 		nxgep->soft_lso_enable = (int)result;
4897 
4898 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4899 		    "<== nxge_set_priv_prop: name %s (value %d)",
4900 		    pr_name, result));
4901 
4902 		return (err);
4903 	}
4904 	/*
4905 	 * Commands like "ndd -set /dev/nxge0 adv_10gfdx_cap 1" cause the
4906 	 * following code to be executed.
4907 	 */
4908 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
4909 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4910 		    (caddr_t)&param_arr[param_anar_10gfdx]);
4911 		return (err);
4912 	}
4913 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
4914 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4915 		    (caddr_t)&param_arr[param_anar_pause]);
4916 		return (err);
4917 	}
4918 
4919 	return (EINVAL);
4920 }
4921 
4922 static int
4923 nxge_get_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_flags,
4924     uint_t pr_valsize, void *pr_val, uint_t *perm)
4925 {
4926 	p_nxge_param_t	param_arr = nxgep->param_arr;
4927 	char		valstr[MAXNAMELEN];
4928 	int		err = EINVAL;
4929 	uint_t		strsize;
4930 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4931 
4932 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4933 	    "==> nxge_get_priv_prop: property %s", pr_name));
4934 
4935 	/* function number */
4936 	if (strcmp(pr_name, "_function_number") == 0) {
4937 		if (is_default)
4938 			return (ENOTSUP);
4939 		*perm = MAC_PROP_PERM_READ;
4940 		(void) snprintf(valstr, sizeof (valstr), "%d",
4941 		    nxgep->function_num);
4942 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4943 		    "==> nxge_get_priv_prop: name %s "
4944 		    "(value %d valstr %s)",
4945 		    pr_name, nxgep->function_num, valstr));
4946 
4947 		err = 0;
4948 		goto done;
4949 	}
4950 
4951 	/* Neptune firmware version */
4952 	if (strcmp(pr_name, "_fw_version") == 0) {
4953 		if (is_default)
4954 			return (ENOTSUP);
4955 		*perm = MAC_PROP_PERM_READ;
4956 		(void) snprintf(valstr, sizeof (valstr), "%s",
4957 		    nxgep->vpd_info.ver);
4958 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4959 		    "==> nxge_get_priv_prop: name %s "
4960 		    "(value %d valstr %s)",
4961 		    pr_name, nxgep->vpd_info.ver, valstr));
4962 
4963 		err = 0;
4964 		goto done;
4965 	}
4966 
4967 	/* port PHY mode */
4968 	if (strcmp(pr_name, "_port_mode") == 0) {
4969 		if (is_default)
4970 			return (ENOTSUP);
4971 		*perm = MAC_PROP_PERM_READ;
4972 		switch (nxgep->mac.portmode) {
4973 		case PORT_1G_COPPER:
4974 			(void) snprintf(valstr, sizeof (valstr), "1G copper %s",
4975 			    nxgep->hot_swappable_phy ?
4976 			    "[Hot Swappable]" : "");
4977 			break;
4978 		case PORT_1G_FIBER:
4979 			(void) snprintf(valstr, sizeof (valstr), "1G fiber %s",
4980 			    nxgep->hot_swappable_phy ?
4981 			    "[hot swappable]" : "");
4982 			break;
4983 		case PORT_10G_COPPER:
4984 			(void) snprintf(valstr, sizeof (valstr),
4985 			    "10G copper %s",
4986 			    nxgep->hot_swappable_phy ?
4987 			    "[hot swappable]" : "");
4988 			break;
4989 		case PORT_10G_FIBER:
4990 			(void) snprintf(valstr, sizeof (valstr), "10G fiber %s",
4991 			    nxgep->hot_swappable_phy ?
4992 			    "[hot swappable]" : "");
4993 			break;
4994 		case PORT_10G_SERDES:
4995 			(void) snprintf(valstr, sizeof (valstr),
4996 			    "10G serdes %s", nxgep->hot_swappable_phy ?
4997 			    "[hot swappable]" : "");
4998 			break;
4999 		case PORT_1G_SERDES:
5000 			(void) snprintf(valstr, sizeof (valstr), "1G serdes %s",
5001 			    nxgep->hot_swappable_phy ?
5002 			    "[hot swappable]" : "");
5003 			break;
5004 		case PORT_1G_TN1010:
5005 			(void) snprintf(valstr, sizeof (valstr),
5006 			    "1G TN1010 copper %s", nxgep->hot_swappable_phy ?
5007 			    "[hot swappable]" : "");
5008 			break;
5009 		case PORT_10G_TN1010:
5010 			(void) snprintf(valstr, sizeof (valstr),
5011 			    "10G TN1010 copper %s", nxgep->hot_swappable_phy ?
5012 			    "[hot swappable]" : "");
5013 			break;
5014 		case PORT_1G_RGMII_FIBER:
5015 			(void) snprintf(valstr, sizeof (valstr),
5016 			    "1G rgmii fiber %s", nxgep->hot_swappable_phy ?
5017 			    "[hot swappable]" : "");
5018 			break;
5019 		case PORT_HSP_MODE:
5020 			(void) snprintf(valstr, sizeof (valstr),
5021 			    "phy not present[hot swappable]");
5022 			break;
5023 		default:
5024 			(void) snprintf(valstr, sizeof (valstr), "unknown %s",
5025 			    nxgep->hot_swappable_phy ?
5026 			    "[hot swappable]" : "");
5027 			break;
5028 		}
5029 
5030 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5031 		    "==> nxge_get_priv_prop: name %s (value %s)",
5032 		    pr_name, valstr));
5033 
5034 		err = 0;
5035 		goto done;
5036 	}
5037 
5038 	/* Hot swappable PHY */
5039 	if (strcmp(pr_name, "_hot_swap_phy") == 0) {
5040 		if (is_default)
5041 			return (ENOTSUP);
5042 		*perm = MAC_PROP_PERM_READ;
5043 		(void) snprintf(valstr, sizeof (valstr), "%s",
5044 		    nxgep->hot_swappable_phy ?
5045 		    "yes" : "no");
5046 
5047 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5048 		    "==> nxge_get_priv_prop: name %s "
5049 		    "(value %d valstr %s)",
5050 		    pr_name, nxgep->hot_swappable_phy, valstr));
5051 
5052 		err = 0;
5053 		goto done;
5054 	}
5055 
5056 
5057 	/* accept jumbo */
5058 	if (strcmp(pr_name, "_accept_jumbo") == 0) {
5059 		if (is_default)
5060 			(void) snprintf(valstr, sizeof (valstr),  "%d", 0);
5061 		else
5062 			(void) snprintf(valstr, sizeof (valstr),
5063 			    "%d", nxgep->mac.is_jumbo);
5064 		err = 0;
5065 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5066 		    "==> nxge_get_priv_prop: name %s (value %d (%d, %d))",
5067 		    pr_name,
5068 		    (uint32_t)param_arr[param_accept_jumbo].value,
5069 		    nxgep->mac.is_jumbo,
5070 		    nxge_jumbo_enable));
5071 
5072 		goto done;
5073 	}
5074 
5075 	/* Receive Interrupt Blanking Parameters */
5076 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
5077 		err = 0;
5078 		if (is_default) {
5079 			(void) snprintf(valstr, sizeof (valstr),
5080 			    "%d", RXDMA_RCR_TO_DEFAULT);
5081 			goto done;
5082 		}
5083 
5084 		(void) snprintf(valstr, sizeof (valstr), "%d",
5085 		    nxgep->intr_timeout);
5086 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5087 		    "==> nxge_get_priv_prop: name %s (value %d)",
5088 		    pr_name,
5089 		    (uint32_t)nxgep->intr_timeout));
5090 		goto done;
5091 	}
5092 
5093 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
5094 		err = 0;
5095 		if (is_default) {
5096 			(void) snprintf(valstr, sizeof (valstr),
5097 			    "%d", RXDMA_RCR_PTHRES_DEFAULT);
5098 			goto done;
5099 		}
5100 		(void) snprintf(valstr, sizeof (valstr), "%d",
5101 		    nxgep->intr_threshold);
5102 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5103 		    "==> nxge_get_priv_prop: name %s (value %d)",
5104 		    pr_name, (uint32_t)nxgep->intr_threshold));
5105 
5106 		goto done;
5107 	}
5108 
5109 	/* Classification and Load Distribution Configuration */
5110 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
5111 		if (is_default) {
5112 			(void) snprintf(valstr, sizeof (valstr), "%x",
5113 			    NXGE_CLASS_FLOW_GEN_SERVER);
5114 			err = 0;
5115 			goto done;
5116 		}
5117 		err = nxge_dld_get_ip_opt(nxgep,
5118 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
5119 
5120 		(void) snprintf(valstr, sizeof (valstr), "%x",
5121 		    (int)param_arr[param_class_opt_ipv4_tcp].value);
5122 
5123 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5124 		    "==> nxge_get_priv_prop: %s", valstr));
5125 		goto done;
5126 	}
5127 
5128 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
5129 		if (is_default) {
5130 			(void) snprintf(valstr, sizeof (valstr), "%x",
5131 			    NXGE_CLASS_FLOW_GEN_SERVER);
5132 			err = 0;
5133 			goto done;
5134 		}
5135 		err = nxge_dld_get_ip_opt(nxgep,
5136 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
5137 
5138 		(void) snprintf(valstr, sizeof (valstr), "%x",
5139 		    (int)param_arr[param_class_opt_ipv4_udp].value);
5140 
5141 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5142 		    "==> nxge_get_priv_prop: %s", valstr));
5143 		goto done;
5144 	}
5145 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
5146 		if (is_default) {
5147 			(void) snprintf(valstr, sizeof (valstr), "%x",
5148 			    NXGE_CLASS_FLOW_GEN_SERVER);
5149 			err = 0;
5150 			goto done;
5151 		}
5152 		err = nxge_dld_get_ip_opt(nxgep,
5153 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
5154 
5155 		(void) snprintf(valstr, sizeof (valstr), "%x",
5156 		    (int)param_arr[param_class_opt_ipv4_ah].value);
5157 
5158 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5159 		    "==> nxge_get_priv_prop: %s", valstr));
5160 		goto done;
5161 	}
5162 
5163 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
5164 		if (is_default) {
5165 			(void) snprintf(valstr, sizeof (valstr), "%x",
5166 			    NXGE_CLASS_FLOW_GEN_SERVER);
5167 			err = 0;
5168 			goto done;
5169 		}
5170 		err = nxge_dld_get_ip_opt(nxgep,
5171 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
5172 
5173 		(void) snprintf(valstr, sizeof (valstr), "%x",
5174 		    (int)param_arr[param_class_opt_ipv4_sctp].value);
5175 
5176 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5177 		    "==> nxge_get_priv_prop: %s", valstr));
5178 		goto done;
5179 	}
5180 
5181 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
5182 		if (is_default) {
5183 			(void) snprintf(valstr, sizeof (valstr), "%x",
5184 			    NXGE_CLASS_FLOW_GEN_SERVER);
5185 			err = 0;
5186 			goto done;
5187 		}
5188 		err = nxge_dld_get_ip_opt(nxgep,
5189 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
5190 
5191 		(void) snprintf(valstr, sizeof (valstr), "%x",
5192 		    (int)param_arr[param_class_opt_ipv6_tcp].value);
5193 
5194 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5195 		    "==> nxge_get_priv_prop: %s", valstr));
5196 		goto done;
5197 	}
5198 
5199 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
5200 		if (is_default) {
5201 			(void) snprintf(valstr, sizeof (valstr), "%x",
5202 			    NXGE_CLASS_FLOW_GEN_SERVER);
5203 			err = 0;
5204 			goto done;
5205 		}
5206 		err = nxge_dld_get_ip_opt(nxgep,
5207 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
5208 
5209 		(void) snprintf(valstr, sizeof (valstr), "%x",
5210 		    (int)param_arr[param_class_opt_ipv6_udp].value);
5211 
5212 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5213 		    "==> nxge_get_priv_prop: %s", valstr));
5214 		goto done;
5215 	}
5216 
5217 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
5218 		if (is_default) {
5219 			(void) snprintf(valstr, sizeof (valstr), "%x",
5220 			    NXGE_CLASS_FLOW_GEN_SERVER);
5221 			err = 0;
5222 			goto done;
5223 		}
5224 		err = nxge_dld_get_ip_opt(nxgep,
5225 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
5226 
5227 		(void) snprintf(valstr, sizeof (valstr), "%x",
5228 		    (int)param_arr[param_class_opt_ipv6_ah].value);
5229 
5230 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5231 		    "==> nxge_get_priv_prop: %s", valstr));
5232 		goto done;
5233 	}
5234 
5235 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
5236 		if (is_default) {
5237 			(void) snprintf(valstr, sizeof (valstr), "%x",
5238 			    NXGE_CLASS_FLOW_GEN_SERVER);
5239 			err = 0;
5240 			goto done;
5241 		}
5242 		err = nxge_dld_get_ip_opt(nxgep,
5243 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
5244 
5245 		(void) snprintf(valstr, sizeof (valstr), "%x",
5246 		    (int)param_arr[param_class_opt_ipv6_sctp].value);
5247 
5248 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5249 		    "==> nxge_get_priv_prop: %s", valstr));
5250 		goto done;
5251 	}
5252 
5253 	/* Software LSO */
5254 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
5255 		if (is_default) {
5256 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5257 			err = 0;
5258 			goto done;
5259 		}
5260 		(void) snprintf(valstr, sizeof (valstr),
5261 		    "%d", nxgep->soft_lso_enable);
5262 		err = 0;
5263 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5264 		    "==> nxge_get_priv_prop: name %s (value %d)",
5265 		    pr_name, nxgep->soft_lso_enable));
5266 
5267 		goto done;
5268 	}
5269 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5270 		err = 0;
5271 		if (is_default ||
5272 		    nxgep->param_arr[param_anar_10gfdx].value != 0) {
5273 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5274 			goto done;
5275 		} else {
5276 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5277 			goto done;
5278 		}
5279 	}
5280 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5281 		err = 0;
5282 		if (is_default ||
5283 		    nxgep->param_arr[param_anar_pause].value != 0) {
5284 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5285 			goto done;
5286 		} else {
5287 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5288 			goto done;
5289 		}
5290 	}
5291 
5292 done:
5293 	if (err == 0) {
5294 		strsize = (uint_t)strlen(valstr);
5295 		if (pr_valsize < strsize) {
5296 			err = ENOBUFS;
5297 		} else {
5298 			(void) strlcpy(pr_val, valstr, pr_valsize);
5299 		}
5300 	}
5301 
5302 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5303 	    "<== nxge_get_priv_prop: return %d", err));
5304 	return (err);
5305 }
5306 
5307 /*
5308  * Module loading and removing entry points.
5309  */
5310 
5311 DDI_DEFINE_STREAM_OPS(nxge_dev_ops, nulldev, nulldev, nxge_attach, nxge_detach,
5312     nodev, NULL, D_MP, NULL, nxge_quiesce);
5313 
5314 #define	NXGE_DESC_VER		"Sun NIU 10Gb Ethernet"
5315 
5316 /*
5317  * Module linkage information for the kernel.
5318  */
5319 static struct modldrv 	nxge_modldrv = {
5320 	&mod_driverops,
5321 	NXGE_DESC_VER,
5322 	&nxge_dev_ops
5323 };
5324 
5325 static struct modlinkage modlinkage = {
5326 	MODREV_1, (void *) &nxge_modldrv, NULL
5327 };
5328 
5329 int
5330 _init(void)
5331 {
5332 	int		status;
5333 
5334 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
5335 	mac_init_ops(&nxge_dev_ops, "nxge");
5336 	status = ddi_soft_state_init(&nxge_list, sizeof (nxge_t), 0);
5337 	if (status != 0) {
5338 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL,
5339 		    "failed to init device soft state"));
5340 		goto _init_exit;
5341 	}
5342 	status = mod_install(&modlinkage);
5343 	if (status != 0) {
5344 		ddi_soft_state_fini(&nxge_list);
5345 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL, "Mod install failed"));
5346 		goto _init_exit;
5347 	}
5348 
5349 	MUTEX_INIT(&nxge_common_lock, NULL, MUTEX_DRIVER, NULL);
5350 
5351 _init_exit:
5352 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_init status = 0x%X", status));
5353 
5354 	return (status);
5355 }
5356 
5357 int
5358 _fini(void)
5359 {
5360 	int		status;
5361 
5362 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
5363 
5364 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
5365 
5366 	if (nxge_mblks_pending)
5367 		return (EBUSY);
5368 
5369 	status = mod_remove(&modlinkage);
5370 	if (status != DDI_SUCCESS) {
5371 		NXGE_DEBUG_MSG((NULL, MOD_CTL,
5372 		    "Module removal failed 0x%08x",
5373 		    status));
5374 		goto _fini_exit;
5375 	}
5376 
5377 	mac_fini_ops(&nxge_dev_ops);
5378 
5379 	ddi_soft_state_fini(&nxge_list);
5380 
5381 	MUTEX_DESTROY(&nxge_common_lock);
5382 _fini_exit:
5383 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_fini status = 0x%08x", status));
5384 
5385 	return (status);
5386 }
5387 
5388 int
5389 _info(struct modinfo *modinfop)
5390 {
5391 	int		status;
5392 
5393 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
5394 	status = mod_info(&modlinkage, modinfop);
5395 	NXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
5396 
5397 	return (status);
5398 }
5399 
5400 /*ARGSUSED*/
5401 static int
5402 nxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5403 {
5404 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5405 	p_nxge_t		nxgep = rhp->nxgep;
5406 	uint32_t		channel;
5407 	p_tx_ring_t		ring;
5408 
5409 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5410 	ring = nxgep->tx_rings->rings[channel];
5411 
5412 	MUTEX_ENTER(&ring->lock);
5413 	ring->tx_ring_handle = rhp->ring_handle;
5414 	MUTEX_EXIT(&ring->lock);
5415 
5416 	return (0);
5417 }
5418 
5419 static void
5420 nxge_tx_ring_stop(mac_ring_driver_t rdriver)
5421 {
5422 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5423 	p_nxge_t		nxgep = rhp->nxgep;
5424 	uint32_t		channel;
5425 	p_tx_ring_t		ring;
5426 
5427 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5428 	ring = nxgep->tx_rings->rings[channel];
5429 
5430 	MUTEX_ENTER(&ring->lock);
5431 	ring->tx_ring_handle = (mac_ring_handle_t)NULL;
5432 	MUTEX_EXIT(&ring->lock);
5433 }
5434 
5435 static int
5436 nxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5437 {
5438 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5439 	p_nxge_t		nxgep = rhp->nxgep;
5440 	uint32_t		channel;
5441 	p_rx_rcr_ring_t		ring;
5442 	int			i;
5443 
5444 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5445 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5446 
5447 	MUTEX_ENTER(&ring->lock);
5448 
5449 	if (nxgep->rx_channel_started[channel] == B_TRUE) {
5450 		MUTEX_EXIT(&ring->lock);
5451 		return (0);
5452 	}
5453 
5454 	/* set rcr_ring */
5455 	for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5456 		if ((nxgep->ldgvp->ldvp[i].is_rxdma == 1) &&
5457 		    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5458 			ring->ldvp = &nxgep->ldgvp->ldvp[i];
5459 			ring->ldgp = nxgep->ldgvp->ldvp[i].ldgp;
5460 		}
5461 	}
5462 
5463 	nxgep->rx_channel_started[channel] = B_TRUE;
5464 	ring->rcr_mac_handle = rhp->ring_handle;
5465 	ring->rcr_gen_num = mr_gen_num;
5466 	MUTEX_EXIT(&ring->lock);
5467 
5468 	return (0);
5469 }
5470 
5471 static void
5472 nxge_rx_ring_stop(mac_ring_driver_t rdriver)
5473 {
5474 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5475 	p_nxge_t		nxgep = rhp->nxgep;
5476 	uint32_t		channel;
5477 	p_rx_rcr_ring_t		ring;
5478 
5479 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5480 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5481 
5482 	MUTEX_ENTER(&ring->lock);
5483 	nxgep->rx_channel_started[channel] = B_FALSE;
5484 	ring->rcr_mac_handle = NULL;
5485 	MUTEX_EXIT(&ring->lock);
5486 }
5487 
5488 /*
5489  * Callback funtion for MAC layer to register all rings.
5490  */
5491 static void
5492 nxge_fill_ring(void *arg, mac_ring_type_t rtype, const int rg_index,
5493     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
5494 {
5495 	p_nxge_t		nxgep = (p_nxge_t)arg;
5496 	p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
5497 
5498 	NXGE_DEBUG_MSG((nxgep, TX_CTL,
5499 	    "==> nxge_fill_ring 0x%x index %d", rtype, index));
5500 
5501 	switch (rtype) {
5502 	case MAC_RING_TYPE_TX: {
5503 		p_nxge_ring_handle_t	rhandlep;
5504 
5505 		NXGE_DEBUG_MSG((nxgep, TX_CTL,
5506 		    "==> nxge_fill_ring (TX) 0x%x index %d ntdcs %d",
5507 		    rtype, index, p_cfgp->tdc.count));
5508 
5509 		ASSERT((index >= 0) && (index < p_cfgp->tdc.count));
5510 		rhandlep = &nxgep->tx_ring_handles[index];
5511 		rhandlep->nxgep = nxgep;
5512 		rhandlep->index = index;
5513 		rhandlep->ring_handle = rh;
5514 
5515 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5516 		infop->mri_start = nxge_tx_ring_start;
5517 		infop->mri_stop = nxge_tx_ring_stop;
5518 		infop->mri_tx = nxge_tx_ring_send;
5519 
5520 		break;
5521 	}
5522 	case MAC_RING_TYPE_RX: {
5523 		p_nxge_ring_handle_t	rhandlep;
5524 		int			nxge_rindex;
5525 		mac_intr_t		nxge_mac_intr;
5526 
5527 		NXGE_DEBUG_MSG((nxgep, RX_CTL,
5528 		    "==> nxge_fill_ring (RX) 0x%x index %d nrdcs %d",
5529 		    rtype, index, p_cfgp->max_rdcs));
5530 
5531 		/*
5532 		 * 'index' is the ring index within the group.
5533 		 * Find the ring index in the nxge instance.
5534 		 */
5535 		nxge_rindex = nxge_get_rxring_index(nxgep, rg_index, index);
5536 
5537 		ASSERT((nxge_rindex >= 0) && (nxge_rindex < p_cfgp->max_rdcs));
5538 		rhandlep = &nxgep->rx_ring_handles[nxge_rindex];
5539 		rhandlep->nxgep = nxgep;
5540 		rhandlep->index = nxge_rindex;
5541 		rhandlep->ring_handle = rh;
5542 
5543 		/*
5544 		 * Entrypoint to enable interrupt (disable poll) and
5545 		 * disable interrupt (enable poll).
5546 		 */
5547 		nxge_mac_intr.mi_handle = (mac_intr_handle_t)rhandlep;
5548 		nxge_mac_intr.mi_enable = (mac_intr_enable_t)nxge_disable_poll;
5549 		nxge_mac_intr.mi_disable = (mac_intr_disable_t)nxge_enable_poll;
5550 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5551 		infop->mri_start = nxge_rx_ring_start;
5552 		infop->mri_stop = nxge_rx_ring_stop;
5553 		infop->mri_intr = nxge_mac_intr; /* ??? */
5554 		infop->mri_poll = nxge_rx_poll;
5555 
5556 		break;
5557 	}
5558 	default:
5559 		break;
5560 	}
5561 
5562 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_fill_ring 0x%x",
5563 	    rtype));
5564 }
5565 
5566 static void
5567 nxge_group_add_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5568     mac_ring_type_t type)
5569 {
5570 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5571 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5572 	nxge_t			*nxge;
5573 	nxge_grp_t		*grp;
5574 	nxge_rdc_grp_t		*rdc_grp;
5575 	uint16_t		channel;	/* device-wise ring id */
5576 	int			dev_gindex;
5577 	int			rv;
5578 
5579 	nxge = rgroup->nxgep;
5580 
5581 	switch (type) {
5582 	case MAC_RING_TYPE_TX:
5583 		/*
5584 		 * nxge_grp_dc_add takes a channel number which is a
5585 		 * "devise" ring ID.
5586 		 */
5587 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5588 
5589 		/*
5590 		 * Remove the ring from the default group
5591 		 */
5592 		if (rgroup->gindex != 0) {
5593 			(void) nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5594 		}
5595 
5596 		/*
5597 		 * nxge->tx_set.group[] is an array of groups indexed by
5598 		 * a "port" group ID.
5599 		 */
5600 		grp = nxge->tx_set.group[rgroup->gindex];
5601 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5602 		if (rv != 0) {
5603 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5604 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5605 		}
5606 		break;
5607 
5608 	case MAC_RING_TYPE_RX:
5609 		/*
5610 		 * nxge->rx_set.group[] is an array of groups indexed by
5611 		 * a "port" group ID.
5612 		 */
5613 		grp = nxge->rx_set.group[rgroup->gindex];
5614 
5615 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5616 		    rgroup->gindex;
5617 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5618 
5619 		/*
5620 		 * nxge_grp_dc_add takes a channel number which is a
5621 		 * "devise" ring ID.
5622 		 */
5623 		channel = nxge->pt_config.hw_config.start_rdc + rhandle->index;
5624 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_RX, channel);
5625 		if (rv != 0) {
5626 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5627 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5628 		}
5629 
5630 		rdc_grp->map |= (1 << channel);
5631 		rdc_grp->max_rdcs++;
5632 
5633 		(void) nxge_init_fzc_rdc_tbl(nxge, rgroup->rdctbl);
5634 		break;
5635 	}
5636 }
5637 
5638 static void
5639 nxge_group_rem_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5640     mac_ring_type_t type)
5641 {
5642 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5643 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5644 	nxge_t			*nxge;
5645 	uint16_t		channel;	/* device-wise ring id */
5646 	nxge_rdc_grp_t		*rdc_grp;
5647 	int			dev_gindex;
5648 
5649 	nxge = rgroup->nxgep;
5650 
5651 	switch (type) {
5652 	case MAC_RING_TYPE_TX:
5653 		dev_gindex = nxge->pt_config.hw_config.def_mac_txdma_grpid +
5654 		    rgroup->gindex;
5655 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5656 		nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5657 
5658 		/*
5659 		 * Add the ring back to the default group
5660 		 */
5661 		if (rgroup->gindex != 0) {
5662 			nxge_grp_t *grp;
5663 			grp = nxge->tx_set.group[0];
5664 			(void) nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5665 		}
5666 		break;
5667 
5668 	case MAC_RING_TYPE_RX:
5669 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5670 		    rgroup->gindex;
5671 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5672 		channel = rdc_grp->start_rdc + rhandle->index;
5673 		nxge_grp_dc_remove(nxge, VP_BOUND_RX, channel);
5674 
5675 		rdc_grp->map &= ~(1 << channel);
5676 		rdc_grp->max_rdcs--;
5677 
5678 		(void) nxge_init_fzc_rdc_tbl(nxge, rgroup->rdctbl);
5679 		break;
5680 	}
5681 }
5682 
5683 
5684 /*ARGSUSED*/
5685 static nxge_status_t
5686 nxge_add_intrs(p_nxge_t nxgep)
5687 {
5688 
5689 	int		intr_types;
5690 	int		type = 0;
5691 	int		ddi_status = DDI_SUCCESS;
5692 	nxge_status_t	status = NXGE_OK;
5693 
5694 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs"));
5695 
5696 	nxgep->nxge_intr_type.intr_registered = B_FALSE;
5697 	nxgep->nxge_intr_type.intr_enabled = B_FALSE;
5698 	nxgep->nxge_intr_type.msi_intx_cnt = 0;
5699 	nxgep->nxge_intr_type.intr_added = 0;
5700 	nxgep->nxge_intr_type.niu_msi_enable = B_FALSE;
5701 	nxgep->nxge_intr_type.intr_type = 0;
5702 
5703 	if (nxgep->niu_type == N2_NIU) {
5704 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5705 	} else if (nxge_msi_enable) {
5706 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5707 	}
5708 
5709 	/* Get the supported interrupt types */
5710 	if ((ddi_status = ddi_intr_get_supported_types(nxgep->dip, &intr_types))
5711 	    != DDI_SUCCESS) {
5712 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_intrs: "
5713 		    "ddi_intr_get_supported_types failed: status 0x%08x",
5714 		    ddi_status));
5715 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5716 	}
5717 	nxgep->nxge_intr_type.intr_types = intr_types;
5718 
5719 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5720 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5721 
5722 	/*
5723 	 * Solaris MSIX is not supported yet. use MSI for now.
5724 	 * nxge_msi_enable (1):
5725 	 *	1 - MSI		2 - MSI-X	others - FIXED
5726 	 */
5727 	switch (nxge_msi_enable) {
5728 	default:
5729 		type = DDI_INTR_TYPE_FIXED;
5730 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5731 		    "use fixed (intx emulation) type %08x",
5732 		    type));
5733 		break;
5734 
5735 	case 2:
5736 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5737 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5738 		if (intr_types & DDI_INTR_TYPE_MSIX) {
5739 			type = DDI_INTR_TYPE_MSIX;
5740 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5741 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5742 			    type));
5743 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
5744 			type = DDI_INTR_TYPE_MSI;
5745 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5746 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5747 			    type));
5748 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5749 			type = DDI_INTR_TYPE_FIXED;
5750 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5751 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5752 			    type));
5753 		}
5754 		break;
5755 
5756 	case 1:
5757 		if (intr_types & DDI_INTR_TYPE_MSI) {
5758 			type = DDI_INTR_TYPE_MSI;
5759 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5760 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5761 			    type));
5762 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
5763 			type = DDI_INTR_TYPE_MSIX;
5764 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5765 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5766 			    type));
5767 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5768 			type = DDI_INTR_TYPE_FIXED;
5769 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5770 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5771 			    type));
5772 		}
5773 	}
5774 
5775 	nxgep->nxge_intr_type.intr_type = type;
5776 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
5777 	    type == DDI_INTR_TYPE_FIXED) &&
5778 	    nxgep->nxge_intr_type.niu_msi_enable) {
5779 		if ((status = nxge_add_intrs_adv(nxgep)) != DDI_SUCCESS) {
5780 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5781 			    " nxge_add_intrs: "
5782 			    " nxge_add_intrs_adv failed: status 0x%08x",
5783 			    status));
5784 			return (status);
5785 		} else {
5786 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5787 			    "interrupts registered : type %d", type));
5788 			nxgep->nxge_intr_type.intr_registered = B_TRUE;
5789 
5790 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
5791 			    "\nAdded advanced nxge add_intr_adv "
5792 			    "intr type 0x%x\n", type));
5793 
5794 			return (status);
5795 		}
5796 	}
5797 
5798 	if (!nxgep->nxge_intr_type.intr_registered) {
5799 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_add_intrs: "
5800 		    "failed to register interrupts"));
5801 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5802 	}
5803 
5804 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_add_intrs"));
5805 	return (status);
5806 }
5807 
5808 static nxge_status_t
5809 nxge_add_intrs_adv(p_nxge_t nxgep)
5810 {
5811 	int		intr_type;
5812 	p_nxge_intr_t	intrp;
5813 
5814 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv"));
5815 
5816 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5817 	intr_type = intrp->intr_type;
5818 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv: type 0x%x",
5819 	    intr_type));
5820 
5821 	switch (intr_type) {
5822 	case DDI_INTR_TYPE_MSI: /* 0x2 */
5823 	case DDI_INTR_TYPE_MSIX: /* 0x4 */
5824 		return (nxge_add_intrs_adv_type(nxgep, intr_type));
5825 
5826 	case DDI_INTR_TYPE_FIXED: /* 0x1 */
5827 		return (nxge_add_intrs_adv_type_fix(nxgep, intr_type));
5828 
5829 	default:
5830 		return (NXGE_ERROR);
5831 	}
5832 }
5833 
5834 
5835 /*ARGSUSED*/
5836 static nxge_status_t
5837 nxge_add_intrs_adv_type(p_nxge_t nxgep, uint32_t int_type)
5838 {
5839 	dev_info_t		*dip = nxgep->dip;
5840 	p_nxge_ldg_t		ldgp;
5841 	p_nxge_intr_t		intrp;
5842 	uint_t			*inthandler;
5843 	void			*arg1, *arg2;
5844 	int			behavior;
5845 	int			nintrs, navail, nrequest;
5846 	int			nactual, nrequired;
5847 	int			inum = 0;
5848 	int			x, y;
5849 	int			ddi_status = DDI_SUCCESS;
5850 	nxge_status_t		status = NXGE_OK;
5851 
5852 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type"));
5853 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5854 	intrp->start_inum = 0;
5855 
5856 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
5857 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
5858 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5859 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
5860 		    "nintrs: %d", ddi_status, nintrs));
5861 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5862 	}
5863 
5864 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
5865 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
5866 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5867 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
5868 		    "nintrs: %d", ddi_status, navail));
5869 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5870 	}
5871 
5872 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
5873 	    "ddi_intr_get_navail() returned: nintrs %d, navail %d",
5874 	    nintrs, navail));
5875 
5876 	/* PSARC/2007/453 MSI-X interrupt limit override */
5877 	if (int_type == DDI_INTR_TYPE_MSIX) {
5878 		nrequest = nxge_create_msi_property(nxgep);
5879 		if (nrequest < navail) {
5880 			navail = nrequest;
5881 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5882 			    "nxge_add_intrs_adv_type: nintrs %d "
5883 			    "navail %d (nrequest %d)",
5884 			    nintrs, navail, nrequest));
5885 		}
5886 	}
5887 
5888 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
5889 		/* MSI must be power of 2 */
5890 		if ((navail & 16) == 16) {
5891 			navail = 16;
5892 		} else if ((navail & 8) == 8) {
5893 			navail = 8;
5894 		} else if ((navail & 4) == 4) {
5895 			navail = 4;
5896 		} else if ((navail & 2) == 2) {
5897 			navail = 2;
5898 		} else {
5899 			navail = 1;
5900 		}
5901 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5902 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
5903 		    "navail %d", nintrs, navail));
5904 	}
5905 
5906 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
5907 	    DDI_INTR_ALLOC_NORMAL);
5908 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
5909 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
5910 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
5911 	    navail, &nactual, behavior);
5912 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
5913 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5914 		    " ddi_intr_alloc() failed: %d",
5915 		    ddi_status));
5916 		kmem_free(intrp->htable, intrp->intr_size);
5917 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5918 	}
5919 
5920 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
5921 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
5922 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5923 		    " ddi_intr_get_pri() failed: %d",
5924 		    ddi_status));
5925 		/* Free already allocated interrupts */
5926 		for (y = 0; y < nactual; y++) {
5927 			(void) ddi_intr_free(intrp->htable[y]);
5928 		}
5929 
5930 		kmem_free(intrp->htable, intrp->intr_size);
5931 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5932 	}
5933 
5934 	nrequired = 0;
5935 	switch (nxgep->niu_type) {
5936 	default:
5937 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
5938 		break;
5939 
5940 	case N2_NIU:
5941 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
5942 		break;
5943 	}
5944 
5945 	if (status != NXGE_OK) {
5946 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5947 		    "nxge_add_intrs_adv_typ:nxge_ldgv_init "
5948 		    "failed: 0x%x", status));
5949 		/* Free already allocated interrupts */
5950 		for (y = 0; y < nactual; y++) {
5951 			(void) ddi_intr_free(intrp->htable[y]);
5952 		}
5953 
5954 		kmem_free(intrp->htable, intrp->intr_size);
5955 		return (status);
5956 	}
5957 
5958 	ldgp = nxgep->ldgvp->ldgp;
5959 	for (x = 0; x < nrequired; x++, ldgp++) {
5960 		ldgp->vector = (uint8_t)x;
5961 		ldgp->intdata = SID_DATA(ldgp->func, x);
5962 		arg1 = ldgp->ldvp;
5963 		arg2 = nxgep;
5964 		if (ldgp->nldvs == 1) {
5965 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
5966 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5967 			    "nxge_add_intrs_adv_type: "
5968 			    "arg1 0x%x arg2 0x%x: "
5969 			    "1-1 int handler (entry %d intdata 0x%x)\n",
5970 			    arg1, arg2,
5971 			    x, ldgp->intdata));
5972 		} else if (ldgp->nldvs > 1) {
5973 			inthandler = (uint_t *)ldgp->sys_intr_handler;
5974 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5975 			    "nxge_add_intrs_adv_type: "
5976 			    "arg1 0x%x arg2 0x%x: "
5977 			    "nldevs %d int handler "
5978 			    "(entry %d intdata 0x%x)\n",
5979 			    arg1, arg2,
5980 			    ldgp->nldvs, x, ldgp->intdata));
5981 		}
5982 
5983 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5984 		    "==> nxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
5985 		    "htable 0x%llx", x, intrp->htable[x]));
5986 
5987 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
5988 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
5989 		    != DDI_SUCCESS) {
5990 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5991 			    "==> nxge_add_intrs_adv_type: failed #%d "
5992 			    "status 0x%x", x, ddi_status));
5993 			for (y = 0; y < intrp->intr_added; y++) {
5994 				(void) ddi_intr_remove_handler(
5995 				    intrp->htable[y]);
5996 			}
5997 			/* Free already allocated intr */
5998 			for (y = 0; y < nactual; y++) {
5999 				(void) ddi_intr_free(intrp->htable[y]);
6000 			}
6001 			kmem_free(intrp->htable, intrp->intr_size);
6002 
6003 			(void) nxge_ldgv_uninit(nxgep);
6004 
6005 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6006 		}
6007 		intrp->intr_added++;
6008 	}
6009 
6010 	intrp->msi_intx_cnt = nactual;
6011 
6012 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6013 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
6014 	    navail, nactual,
6015 	    intrp->msi_intx_cnt,
6016 	    intrp->intr_added));
6017 
6018 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6019 
6020 	(void) nxge_intr_ldgv_init(nxgep);
6021 
6022 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type"));
6023 
6024 	return (status);
6025 }
6026 
6027 /*ARGSUSED*/
6028 static nxge_status_t
6029 nxge_add_intrs_adv_type_fix(p_nxge_t nxgep, uint32_t int_type)
6030 {
6031 	dev_info_t		*dip = nxgep->dip;
6032 	p_nxge_ldg_t		ldgp;
6033 	p_nxge_intr_t		intrp;
6034 	uint_t			*inthandler;
6035 	void			*arg1, *arg2;
6036 	int			behavior;
6037 	int			nintrs, navail;
6038 	int			nactual, nrequired;
6039 	int			inum = 0;
6040 	int			x, y;
6041 	int			ddi_status = DDI_SUCCESS;
6042 	nxge_status_t		status = NXGE_OK;
6043 
6044 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type_fix"));
6045 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6046 	intrp->start_inum = 0;
6047 
6048 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
6049 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
6050 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6051 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
6052 		    "nintrs: %d", status, nintrs));
6053 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6054 	}
6055 
6056 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
6057 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
6058 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6059 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
6060 		    "nintrs: %d", ddi_status, navail));
6061 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6062 	}
6063 
6064 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
6065 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
6066 	    nintrs, navail));
6067 
6068 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
6069 	    DDI_INTR_ALLOC_NORMAL);
6070 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
6071 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
6072 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
6073 	    navail, &nactual, behavior);
6074 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6075 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6076 		    " ddi_intr_alloc() failed: %d",
6077 		    ddi_status));
6078 		kmem_free(intrp->htable, intrp->intr_size);
6079 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6080 	}
6081 
6082 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6083 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6084 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6085 		    " ddi_intr_get_pri() failed: %d",
6086 		    ddi_status));
6087 		/* Free already allocated interrupts */
6088 		for (y = 0; y < nactual; y++) {
6089 			(void) ddi_intr_free(intrp->htable[y]);
6090 		}
6091 
6092 		kmem_free(intrp->htable, intrp->intr_size);
6093 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6094 	}
6095 
6096 	nrequired = 0;
6097 	switch (nxgep->niu_type) {
6098 	default:
6099 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6100 		break;
6101 
6102 	case N2_NIU:
6103 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6104 		break;
6105 	}
6106 
6107 	if (status != NXGE_OK) {
6108 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6109 		    "nxge_add_intrs_adv_type_fix:nxge_ldgv_init "
6110 		    "failed: 0x%x", status));
6111 		/* Free already allocated interrupts */
6112 		for (y = 0; y < nactual; y++) {
6113 			(void) ddi_intr_free(intrp->htable[y]);
6114 		}
6115 
6116 		kmem_free(intrp->htable, intrp->intr_size);
6117 		return (status);
6118 	}
6119 
6120 	ldgp = nxgep->ldgvp->ldgp;
6121 	for (x = 0; x < nrequired; x++, ldgp++) {
6122 		ldgp->vector = (uint8_t)x;
6123 		if (nxgep->niu_type != N2_NIU) {
6124 			ldgp->intdata = SID_DATA(ldgp->func, x);
6125 		}
6126 
6127 		arg1 = ldgp->ldvp;
6128 		arg2 = nxgep;
6129 		if (ldgp->nldvs == 1) {
6130 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
6131 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6132 			    "nxge_add_intrs_adv_type_fix: "
6133 			    "1-1 int handler(%d) ldg %d ldv %d "
6134 			    "arg1 $%p arg2 $%p\n",
6135 			    x, ldgp->ldg, ldgp->ldvp->ldv,
6136 			    arg1, arg2));
6137 		} else if (ldgp->nldvs > 1) {
6138 			inthandler = (uint_t *)ldgp->sys_intr_handler;
6139 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6140 			    "nxge_add_intrs_adv_type_fix: "
6141 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
6142 			    "arg1 0x%016llx arg2 0x%016llx\n",
6143 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
6144 			    arg1, arg2));
6145 		}
6146 
6147 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6148 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6149 		    != DDI_SUCCESS) {
6150 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6151 			    "==> nxge_add_intrs_adv_type_fix: failed #%d "
6152 			    "status 0x%x", x, ddi_status));
6153 			for (y = 0; y < intrp->intr_added; y++) {
6154 				(void) ddi_intr_remove_handler(
6155 				    intrp->htable[y]);
6156 			}
6157 			for (y = 0; y < nactual; y++) {
6158 				(void) ddi_intr_free(intrp->htable[y]);
6159 			}
6160 			/* Free already allocated intr */
6161 			kmem_free(intrp->htable, intrp->intr_size);
6162 
6163 			(void) nxge_ldgv_uninit(nxgep);
6164 
6165 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6166 		}
6167 		intrp->intr_added++;
6168 	}
6169 
6170 	intrp->msi_intx_cnt = nactual;
6171 
6172 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6173 
6174 	status = nxge_intr_ldgv_init(nxgep);
6175 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type_fix"));
6176 
6177 	return (status);
6178 }
6179 
6180 static void
6181 nxge_remove_intrs(p_nxge_t nxgep)
6182 {
6183 	int		i, inum;
6184 	p_nxge_intr_t	intrp;
6185 
6186 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs"));
6187 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6188 	if (!intrp->intr_registered) {
6189 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6190 		    "<== nxge_remove_intrs: interrupts not registered"));
6191 		return;
6192 	}
6193 
6194 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs:advanced"));
6195 
6196 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6197 		(void) ddi_intr_block_disable(intrp->htable,
6198 		    intrp->intr_added);
6199 	} else {
6200 		for (i = 0; i < intrp->intr_added; i++) {
6201 			(void) ddi_intr_disable(intrp->htable[i]);
6202 		}
6203 	}
6204 
6205 	for (inum = 0; inum < intrp->intr_added; inum++) {
6206 		if (intrp->htable[inum]) {
6207 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
6208 		}
6209 	}
6210 
6211 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
6212 		if (intrp->htable[inum]) {
6213 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6214 			    "nxge_remove_intrs: ddi_intr_free inum %d "
6215 			    "msi_intx_cnt %d intr_added %d",
6216 			    inum,
6217 			    intrp->msi_intx_cnt,
6218 			    intrp->intr_added));
6219 
6220 			(void) ddi_intr_free(intrp->htable[inum]);
6221 		}
6222 	}
6223 
6224 	kmem_free(intrp->htable, intrp->intr_size);
6225 	intrp->intr_registered = B_FALSE;
6226 	intrp->intr_enabled = B_FALSE;
6227 	intrp->msi_intx_cnt = 0;
6228 	intrp->intr_added = 0;
6229 
6230 	(void) nxge_ldgv_uninit(nxgep);
6231 
6232 	(void) ddi_prop_remove(DDI_DEV_T_NONE, nxgep->dip,
6233 	    "#msix-request");
6234 
6235 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_intrs"));
6236 }
6237 
6238 /*ARGSUSED*/
6239 static void
6240 nxge_intrs_enable(p_nxge_t nxgep)
6241 {
6242 	p_nxge_intr_t	intrp;
6243 	int		i;
6244 	int		status;
6245 
6246 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable"));
6247 
6248 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6249 
6250 	if (!intrp->intr_registered) {
6251 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_intrs_enable: "
6252 		    "interrupts are not registered"));
6253 		return;
6254 	}
6255 
6256 	if (intrp->intr_enabled) {
6257 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6258 		    "<== nxge_intrs_enable: already enabled"));
6259 		return;
6260 	}
6261 
6262 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6263 		status = ddi_intr_block_enable(intrp->htable,
6264 		    intrp->intr_added);
6265 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6266 		    "block enable - status 0x%x total inums #%d\n",
6267 		    status, intrp->intr_added));
6268 	} else {
6269 		for (i = 0; i < intrp->intr_added; i++) {
6270 			status = ddi_intr_enable(intrp->htable[i]);
6271 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6272 			    "ddi_intr_enable:enable - status 0x%x "
6273 			    "total inums %d enable inum #%d\n",
6274 			    status, intrp->intr_added, i));
6275 			if (status == DDI_SUCCESS) {
6276 				intrp->intr_enabled = B_TRUE;
6277 			}
6278 		}
6279 	}
6280 
6281 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_enable"));
6282 }
6283 
6284 /*ARGSUSED*/
6285 static void
6286 nxge_intrs_disable(p_nxge_t nxgep)
6287 {
6288 	p_nxge_intr_t	intrp;
6289 	int		i;
6290 
6291 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_disable"));
6292 
6293 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6294 
6295 	if (!intrp->intr_registered) {
6296 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable: "
6297 		    "interrupts are not registered"));
6298 		return;
6299 	}
6300 
6301 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6302 		(void) ddi_intr_block_disable(intrp->htable,
6303 		    intrp->intr_added);
6304 	} else {
6305 		for (i = 0; i < intrp->intr_added; i++) {
6306 			(void) ddi_intr_disable(intrp->htable[i]);
6307 		}
6308 	}
6309 
6310 	intrp->intr_enabled = B_FALSE;
6311 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable"));
6312 }
6313 
6314 static nxge_status_t
6315 nxge_mac_register(p_nxge_t nxgep)
6316 {
6317 	mac_register_t *macp;
6318 	int		status;
6319 
6320 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_mac_register"));
6321 
6322 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
6323 		return (NXGE_ERROR);
6324 
6325 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
6326 	macp->m_driver = nxgep;
6327 	macp->m_dip = nxgep->dip;
6328 	macp->m_src_addr = nxgep->ouraddr.ether_addr_octet;
6329 	macp->m_callbacks = &nxge_m_callbacks;
6330 	macp->m_min_sdu = 0;
6331 	nxgep->mac.default_mtu = nxgep->mac.maxframesize -
6332 	    NXGE_EHEADER_VLAN_CRC;
6333 	macp->m_max_sdu = nxgep->mac.default_mtu;
6334 	macp->m_margin = VLAN_TAGSZ;
6335 	macp->m_priv_props = nxge_priv_props;
6336 	macp->m_priv_prop_count = NXGE_MAX_PRIV_PROPS;
6337 	macp->m_v12n = MAC_VIRT_HIO | MAC_VIRT_LEVEL1 | MAC_VIRT_SERIALIZE;
6338 
6339 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
6340 	    "==> nxge_mac_register: instance %d "
6341 	    "max_sdu %d margin %d maxframe %d (header %d)",
6342 	    nxgep->instance,
6343 	    macp->m_max_sdu, macp->m_margin,
6344 	    nxgep->mac.maxframesize,
6345 	    NXGE_EHEADER_VLAN_CRC));
6346 
6347 	status = mac_register(macp, &nxgep->mach);
6348 	mac_free(macp);
6349 
6350 	if (status != 0) {
6351 		cmn_err(CE_WARN,
6352 		    "!nxge_mac_register failed (status %d instance %d)",
6353 		    status, nxgep->instance);
6354 		return (NXGE_ERROR);
6355 	}
6356 
6357 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_mac_register success "
6358 	    "(instance %d)", nxgep->instance));
6359 
6360 	return (NXGE_OK);
6361 }
6362 
6363 void
6364 nxge_err_inject(p_nxge_t nxgep, queue_t *wq, mblk_t *mp)
6365 {
6366 	ssize_t		size;
6367 	mblk_t		*nmp;
6368 	uint8_t		blk_id;
6369 	uint8_t		chan;
6370 	uint32_t	err_id;
6371 	err_inject_t	*eip;
6372 
6373 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_err_inject"));
6374 
6375 	size = 1024;
6376 	nmp = mp->b_cont;
6377 	eip = (err_inject_t *)nmp->b_rptr;
6378 	blk_id = eip->blk_id;
6379 	err_id = eip->err_id;
6380 	chan = eip->chan;
6381 	cmn_err(CE_NOTE, "!blk_id = 0x%x\n", blk_id);
6382 	cmn_err(CE_NOTE, "!err_id = 0x%x\n", err_id);
6383 	cmn_err(CE_NOTE, "!chan = 0x%x\n", chan);
6384 	switch (blk_id) {
6385 	case MAC_BLK_ID:
6386 		break;
6387 	case TXMAC_BLK_ID:
6388 		break;
6389 	case RXMAC_BLK_ID:
6390 		break;
6391 	case MIF_BLK_ID:
6392 		break;
6393 	case IPP_BLK_ID:
6394 		nxge_ipp_inject_err(nxgep, err_id);
6395 		break;
6396 	case TXC_BLK_ID:
6397 		nxge_txc_inject_err(nxgep, err_id);
6398 		break;
6399 	case TXDMA_BLK_ID:
6400 		nxge_txdma_inject_err(nxgep, err_id, chan);
6401 		break;
6402 	case RXDMA_BLK_ID:
6403 		nxge_rxdma_inject_err(nxgep, err_id, chan);
6404 		break;
6405 	case ZCP_BLK_ID:
6406 		nxge_zcp_inject_err(nxgep, err_id);
6407 		break;
6408 	case ESPC_BLK_ID:
6409 		break;
6410 	case FFLP_BLK_ID:
6411 		break;
6412 	case PHY_BLK_ID:
6413 		break;
6414 	case ETHER_SERDES_BLK_ID:
6415 		break;
6416 	case PCIE_SERDES_BLK_ID:
6417 		break;
6418 	case VIR_BLK_ID:
6419 		break;
6420 	}
6421 
6422 	nmp->b_wptr = nmp->b_rptr + size;
6423 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "<== nxge_err_inject"));
6424 
6425 	miocack(wq, mp, (int)size, 0);
6426 }
6427 
6428 static int
6429 nxge_init_common_dev(p_nxge_t nxgep)
6430 {
6431 	p_nxge_hw_list_t	hw_p;
6432 	dev_info_t 		*p_dip;
6433 
6434 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_init_common_device"));
6435 
6436 	p_dip = nxgep->p_dip;
6437 	MUTEX_ENTER(&nxge_common_lock);
6438 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6439 	    "==> nxge_init_common_dev:func # %d",
6440 	    nxgep->function_num));
6441 	/*
6442 	 * Loop through existing per neptune hardware list.
6443 	 */
6444 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6445 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6446 		    "==> nxge_init_common_device:func # %d "
6447 		    "hw_p $%p parent dip $%p",
6448 		    nxgep->function_num,
6449 		    hw_p,
6450 		    p_dip));
6451 		if (hw_p->parent_devp == p_dip) {
6452 			nxgep->nxge_hw_p = hw_p;
6453 			hw_p->ndevs++;
6454 			hw_p->nxge_p[nxgep->function_num] = nxgep;
6455 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6456 			    "==> nxge_init_common_device:func # %d "
6457 			    "hw_p $%p parent dip $%p "
6458 			    "ndevs %d (found)",
6459 			    nxgep->function_num,
6460 			    hw_p,
6461 			    p_dip,
6462 			    hw_p->ndevs));
6463 			break;
6464 		}
6465 	}
6466 
6467 	if (hw_p == NULL) {
6468 
6469 		char **prop_val;
6470 		uint_t prop_len;
6471 		int i;
6472 
6473 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6474 		    "==> nxge_init_common_device:func # %d "
6475 		    "parent dip $%p (new)",
6476 		    nxgep->function_num,
6477 		    p_dip));
6478 		hw_p = kmem_zalloc(sizeof (nxge_hw_list_t), KM_SLEEP);
6479 		hw_p->parent_devp = p_dip;
6480 		hw_p->magic = NXGE_NEPTUNE_MAGIC;
6481 		nxgep->nxge_hw_p = hw_p;
6482 		hw_p->ndevs++;
6483 		hw_p->nxge_p[nxgep->function_num] = nxgep;
6484 		hw_p->next = nxge_hw_list;
6485 		if (nxgep->niu_type == N2_NIU) {
6486 			hw_p->niu_type = N2_NIU;
6487 			hw_p->platform_type = P_NEPTUNE_NIU;
6488 		} else {
6489 			hw_p->niu_type = NIU_TYPE_NONE;
6490 			hw_p->platform_type = P_NEPTUNE_NONE;
6491 		}
6492 
6493 		MUTEX_INIT(&hw_p->nxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
6494 		MUTEX_INIT(&hw_p->nxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
6495 		MUTEX_INIT(&hw_p->nxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
6496 		MUTEX_INIT(&hw_p->nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
6497 
6498 		nxge_hw_list = hw_p;
6499 
6500 		if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, nxgep->dip, 0,
6501 		    "compatible", &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
6502 			for (i = 0; i < prop_len; i++) {
6503 				if ((strcmp((caddr_t)prop_val[i],
6504 				    NXGE_ROCK_COMPATIBLE) == 0)) {
6505 					hw_p->platform_type = P_NEPTUNE_ROCK;
6506 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6507 					    "ROCK hw_p->platform_type %d",
6508 					    hw_p->platform_type));
6509 					break;
6510 				}
6511 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6512 				    "nxge_init_common_dev: read compatible"
6513 				    " property[%d] val[%s]",
6514 				    i, (caddr_t)prop_val[i]));
6515 			}
6516 		}
6517 
6518 		ddi_prop_free(prop_val);
6519 
6520 		(void) nxge_scan_ports_phy(nxgep, nxge_hw_list);
6521 	}
6522 
6523 	MUTEX_EXIT(&nxge_common_lock);
6524 
6525 	nxgep->platform_type = hw_p->platform_type;
6526 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "nxgep->platform_type %d",
6527 	    nxgep->platform_type));
6528 	if (nxgep->niu_type != N2_NIU) {
6529 		nxgep->niu_type = hw_p->niu_type;
6530 	}
6531 
6532 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6533 	    "==> nxge_init_common_device (nxge_hw_list) $%p",
6534 	    nxge_hw_list));
6535 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<== nxge_init_common_device"));
6536 
6537 	return (NXGE_OK);
6538 }
6539 
6540 static void
6541 nxge_uninit_common_dev(p_nxge_t nxgep)
6542 {
6543 	p_nxge_hw_list_t	hw_p, h_hw_p;
6544 	p_nxge_dma_pt_cfg_t	p_dma_cfgp;
6545 	p_nxge_hw_pt_cfg_t	p_cfgp;
6546 	dev_info_t 		*p_dip;
6547 
6548 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_uninit_common_device"));
6549 	if (nxgep->nxge_hw_p == NULL) {
6550 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6551 		    "<== nxge_uninit_common_device (no common)"));
6552 		return;
6553 	}
6554 
6555 	MUTEX_ENTER(&nxge_common_lock);
6556 	h_hw_p = nxge_hw_list;
6557 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6558 		p_dip = hw_p->parent_devp;
6559 		if (nxgep->nxge_hw_p == hw_p &&
6560 		    p_dip == nxgep->p_dip &&
6561 		    nxgep->nxge_hw_p->magic == NXGE_NEPTUNE_MAGIC &&
6562 		    hw_p->magic == NXGE_NEPTUNE_MAGIC) {
6563 
6564 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6565 			    "==> nxge_uninit_common_device:func # %d "
6566 			    "hw_p $%p parent dip $%p "
6567 			    "ndevs %d (found)",
6568 			    nxgep->function_num,
6569 			    hw_p,
6570 			    p_dip,
6571 			    hw_p->ndevs));
6572 
6573 			/*
6574 			 * Release the RDC table, a shared resoruce
6575 			 * of the nxge hardware.  The RDC table was
6576 			 * assigned to this instance of nxge in
6577 			 * nxge_use_cfg_dma_config().
6578 			 */
6579 			if (!isLDOMguest(nxgep)) {
6580 				p_dma_cfgp =
6581 				    (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
6582 				p_cfgp =
6583 				    (p_nxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
6584 				(void) nxge_fzc_rdc_tbl_unbind(nxgep,
6585 				    p_cfgp->def_mac_rxdma_grpid);
6586 
6587 				/* Cleanup any outstanding groups.  */
6588 				nxge_grp_cleanup(nxgep);
6589 			}
6590 
6591 			if (hw_p->ndevs) {
6592 				hw_p->ndevs--;
6593 			}
6594 			hw_p->nxge_p[nxgep->function_num] = NULL;
6595 			if (!hw_p->ndevs) {
6596 				MUTEX_DESTROY(&hw_p->nxge_vlan_lock);
6597 				MUTEX_DESTROY(&hw_p->nxge_tcam_lock);
6598 				MUTEX_DESTROY(&hw_p->nxge_cfg_lock);
6599 				MUTEX_DESTROY(&hw_p->nxge_mdio_lock);
6600 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6601 				    "==> nxge_uninit_common_device: "
6602 				    "func # %d "
6603 				    "hw_p $%p parent dip $%p "
6604 				    "ndevs %d (last)",
6605 				    nxgep->function_num,
6606 				    hw_p,
6607 				    p_dip,
6608 				    hw_p->ndevs));
6609 
6610 				nxge_hio_uninit(nxgep);
6611 
6612 				if (hw_p == nxge_hw_list) {
6613 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6614 					    "==> nxge_uninit_common_device:"
6615 					    "remove head func # %d "
6616 					    "hw_p $%p parent dip $%p "
6617 					    "ndevs %d (head)",
6618 					    nxgep->function_num,
6619 					    hw_p,
6620 					    p_dip,
6621 					    hw_p->ndevs));
6622 					nxge_hw_list = hw_p->next;
6623 				} else {
6624 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6625 					    "==> nxge_uninit_common_device:"
6626 					    "remove middle func # %d "
6627 					    "hw_p $%p parent dip $%p "
6628 					    "ndevs %d (middle)",
6629 					    nxgep->function_num,
6630 					    hw_p,
6631 					    p_dip,
6632 					    hw_p->ndevs));
6633 					h_hw_p->next = hw_p->next;
6634 				}
6635 
6636 				nxgep->nxge_hw_p = NULL;
6637 				KMEM_FREE(hw_p, sizeof (nxge_hw_list_t));
6638 			}
6639 			break;
6640 		} else {
6641 			h_hw_p = hw_p;
6642 		}
6643 	}
6644 
6645 	MUTEX_EXIT(&nxge_common_lock);
6646 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6647 	    "==> nxge_uninit_common_device (nxge_hw_list) $%p",
6648 	    nxge_hw_list));
6649 
6650 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<= nxge_uninit_common_device"));
6651 }
6652 
6653 /*
6654  * Determines the number of ports from the niu_type or the platform type.
6655  * Returns the number of ports, or returns zero on failure.
6656  */
6657 
6658 int
6659 nxge_get_nports(p_nxge_t nxgep)
6660 {
6661 	int	nports = 0;
6662 
6663 	switch (nxgep->niu_type) {
6664 	case N2_NIU:
6665 	case NEPTUNE_2_10GF:
6666 		nports = 2;
6667 		break;
6668 	case NEPTUNE_4_1GC:
6669 	case NEPTUNE_2_10GF_2_1GC:
6670 	case NEPTUNE_1_10GF_3_1GC:
6671 	case NEPTUNE_1_1GC_1_10GF_2_1GC:
6672 	case NEPTUNE_2_10GF_2_1GRF:
6673 		nports = 4;
6674 		break;
6675 	default:
6676 		switch (nxgep->platform_type) {
6677 		case P_NEPTUNE_NIU:
6678 		case P_NEPTUNE_ATLAS_2PORT:
6679 			nports = 2;
6680 			break;
6681 		case P_NEPTUNE_ATLAS_4PORT:
6682 		case P_NEPTUNE_MARAMBA_P0:
6683 		case P_NEPTUNE_MARAMBA_P1:
6684 		case P_NEPTUNE_ROCK:
6685 		case P_NEPTUNE_ALONSO:
6686 			nports = 4;
6687 			break;
6688 		default:
6689 			break;
6690 		}
6691 		break;
6692 	}
6693 
6694 	return (nports);
6695 }
6696 
6697 /*
6698  * The following two functions are to support
6699  * PSARC/2007/453 MSI-X interrupt limit override.
6700  */
6701 static int
6702 nxge_create_msi_property(p_nxge_t nxgep)
6703 {
6704 	int	nmsi;
6705 	extern	int ncpus;
6706 
6707 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==>nxge_create_msi_property"));
6708 
6709 	switch (nxgep->mac.portmode) {
6710 	case PORT_10G_COPPER:
6711 	case PORT_10G_FIBER:
6712 	case PORT_10G_TN1010:
6713 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6714 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6715 		/*
6716 		 * The maximum MSI-X requested will be 8.
6717 		 * If the # of CPUs is less than 8, we will request
6718 		 * # MSI-X based on the # of CPUs (default).
6719 		 */
6720 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6721 		    "==>nxge_create_msi_property (10G): nxge_msix_10g_intrs %d",
6722 		    nxge_msix_10g_intrs));
6723 		if ((nxge_msix_10g_intrs == 0) ||
6724 		    (nxge_msix_10g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6725 			nmsi = NXGE_MSIX_REQUEST_10G;
6726 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6727 			    "==>nxge_create_msi_property (10G): reset to 8"));
6728 		} else {
6729 			nmsi = nxge_msix_10g_intrs;
6730 		}
6731 
6732 		/*
6733 		 * If # of interrupts requested is 8 (default),
6734 		 * the checking of the number of cpus will be
6735 		 * be maintained.
6736 		 */
6737 		if ((nmsi == NXGE_MSIX_REQUEST_10G) &&
6738 		    (ncpus < nmsi)) {
6739 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6740 			    "==>nxge_create_msi_property (10G): reset to 8"));
6741 			nmsi = ncpus;
6742 		}
6743 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6744 		    "==>nxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
6745 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6746 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6747 		break;
6748 
6749 	default:
6750 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6751 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6752 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6753 		    "==>nxge_create_msi_property (1G): nxge_msix_1g_intrs %d",
6754 		    nxge_msix_1g_intrs));
6755 		if ((nxge_msix_1g_intrs == 0) ||
6756 		    (nxge_msix_1g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6757 			nmsi = NXGE_MSIX_REQUEST_1G;
6758 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6759 			    "==>nxge_create_msi_property (1G): reset to 2"));
6760 		} else {
6761 			nmsi = nxge_msix_1g_intrs;
6762 		}
6763 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6764 		    "==>nxge_create_msi_property(1G): exists 0x%x (nmsi %d)",
6765 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6766 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6767 		break;
6768 	}
6769 
6770 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<==nxge_create_msi_property"));
6771 	return (nmsi);
6772 }
6773 
6774 /* ARGSUSED */
6775 static int
6776 nxge_get_def_val(nxge_t *nxgep, mac_prop_id_t pr_num, uint_t pr_valsize,
6777     void *pr_val)
6778 {
6779 	int err = 0;
6780 	link_flowctrl_t fl;
6781 
6782 	switch (pr_num) {
6783 	case MAC_PROP_AUTONEG:
6784 		*(uint8_t *)pr_val = 1;
6785 		break;
6786 	case MAC_PROP_FLOWCTRL:
6787 		if (pr_valsize < sizeof (link_flowctrl_t))
6788 			return (EINVAL);
6789 		fl = LINK_FLOWCTRL_RX;
6790 		bcopy(&fl, pr_val, sizeof (fl));
6791 		break;
6792 	case MAC_PROP_ADV_1000FDX_CAP:
6793 	case MAC_PROP_EN_1000FDX_CAP:
6794 		*(uint8_t *)pr_val = 1;
6795 		break;
6796 	case MAC_PROP_ADV_100FDX_CAP:
6797 	case MAC_PROP_EN_100FDX_CAP:
6798 		*(uint8_t *)pr_val = 1;
6799 		break;
6800 	default:
6801 		err = ENOTSUP;
6802 		break;
6803 	}
6804 	return (err);
6805 }
6806 
6807 
6808 /*
6809  * The following is a software around for the Neptune hardware's
6810  * interrupt bugs; The Neptune hardware may generate spurious interrupts when
6811  * an interrupr handler is removed.
6812  */
6813 #define	NXGE_PCI_PORT_LOGIC_OFFSET	0x98
6814 #define	NXGE_PIM_RESET			(1ULL << 29)
6815 #define	NXGE_GLU_RESET			(1ULL << 30)
6816 #define	NXGE_NIU_RESET			(1ULL << 31)
6817 #define	NXGE_PCI_RESET_ALL		(NXGE_PIM_RESET |	\
6818 					NXGE_GLU_RESET |	\
6819 					NXGE_NIU_RESET)
6820 
6821 #define	NXGE_WAIT_QUITE_TIME		200000
6822 #define	NXGE_WAIT_QUITE_RETRY		40
6823 #define	NXGE_PCI_RESET_WAIT		1000000 /* one second */
6824 
6825 static void
6826 nxge_niu_peu_reset(p_nxge_t nxgep)
6827 {
6828 	uint32_t	rvalue;
6829 	p_nxge_hw_list_t hw_p;
6830 	p_nxge_t	fnxgep;
6831 	int		i, j;
6832 
6833 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_niu_peu_reset"));
6834 	if ((hw_p = nxgep->nxge_hw_p) == NULL) {
6835 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6836 		    "==> nxge_niu_peu_reset: NULL hardware pointer"));
6837 		return;
6838 	}
6839 
6840 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6841 	    "==> nxge_niu_peu_reset: flags 0x%x link timer id %d timer id %d",
6842 	    hw_p->flags, nxgep->nxge_link_poll_timerid,
6843 	    nxgep->nxge_timerid));
6844 
6845 	MUTEX_ENTER(&hw_p->nxge_cfg_lock);
6846 	/*
6847 	 * Make sure other instances from the same hardware
6848 	 * stop sending PIO and in quiescent state.
6849 	 */
6850 	for (i = 0; i < NXGE_MAX_PORTS; i++) {
6851 		fnxgep = hw_p->nxge_p[i];
6852 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6853 		    "==> nxge_niu_peu_reset: checking entry %d "
6854 		    "nxgep $%p", i, fnxgep));
6855 #ifdef	NXGE_DEBUG
6856 		if (fnxgep) {
6857 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6858 			    "==> nxge_niu_peu_reset: entry %d (function %d) "
6859 			    "link timer id %d hw timer id %d",
6860 			    i, fnxgep->function_num,
6861 			    fnxgep->nxge_link_poll_timerid,
6862 			    fnxgep->nxge_timerid));
6863 		}
6864 #endif
6865 		if (fnxgep && fnxgep != nxgep &&
6866 		    (fnxgep->nxge_timerid || fnxgep->nxge_link_poll_timerid)) {
6867 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6868 			    "==> nxge_niu_peu_reset: checking $%p "
6869 			    "(function %d) timer ids",
6870 			    fnxgep, fnxgep->function_num));
6871 			for (j = 0; j < NXGE_WAIT_QUITE_RETRY; j++) {
6872 				NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6873 				    "==> nxge_niu_peu_reset: waiting"));
6874 				NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6875 				if (!fnxgep->nxge_timerid &&
6876 				    !fnxgep->nxge_link_poll_timerid) {
6877 					break;
6878 				}
6879 			}
6880 			NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6881 			if (fnxgep->nxge_timerid ||
6882 			    fnxgep->nxge_link_poll_timerid) {
6883 				MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6884 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6885 				    "<== nxge_niu_peu_reset: cannot reset "
6886 				    "hardware (devices are still in use)"));
6887 				return;
6888 			}
6889 		}
6890 	}
6891 
6892 	if ((hw_p->flags & COMMON_RESET_NIU_PCI) != COMMON_RESET_NIU_PCI) {
6893 		hw_p->flags |= COMMON_RESET_NIU_PCI;
6894 		rvalue = pci_config_get32(nxgep->dev_regs->nxge_pciregh,
6895 		    NXGE_PCI_PORT_LOGIC_OFFSET);
6896 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6897 		    "nxge_niu_peu_reset: read offset 0x%x (%d) "
6898 		    "(data 0x%x)",
6899 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6900 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6901 		    rvalue));
6902 
6903 		rvalue |= NXGE_PCI_RESET_ALL;
6904 		pci_config_put32(nxgep->dev_regs->nxge_pciregh,
6905 		    NXGE_PCI_PORT_LOGIC_OFFSET, rvalue);
6906 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6907 		    "nxge_niu_peu_reset: RESETTING NIU: write NIU reset 0x%x",
6908 		    rvalue));
6909 
6910 		NXGE_DELAY(NXGE_PCI_RESET_WAIT);
6911 	}
6912 
6913 	MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6914 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_niu_peu_reset"));
6915 }
6916 
6917 static void
6918 nxge_set_pci_replay_timeout(p_nxge_t nxgep)
6919 {
6920 	p_dev_regs_t	dev_regs;
6921 	uint32_t	value;
6922 
6923 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_set_pci_replay_timeout"));
6924 
6925 	if (!nxge_set_replay_timer) {
6926 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6927 		    "==> nxge_set_pci_replay_timeout: will not change "
6928 		    "the timeout"));
6929 		return;
6930 	}
6931 
6932 	dev_regs = nxgep->dev_regs;
6933 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6934 	    "==> nxge_set_pci_replay_timeout: dev_regs 0x%p pcireg 0x%p",
6935 	    dev_regs, dev_regs->nxge_pciregh));
6936 
6937 	if (dev_regs == NULL || (dev_regs->nxge_pciregh == NULL)) {
6938 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6939 		    "==> nxge_set_pci_replay_timeout: NULL dev_regs $%p or "
6940 		    "no PCI handle",
6941 		    dev_regs));
6942 		return;
6943 	}
6944 	value = (pci_config_get32(dev_regs->nxge_pciregh,
6945 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET) |
6946 	    (nxge_replay_timeout << PCI_REPLAY_TIMEOUT_SHIFT));
6947 
6948 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6949 	    "nxge_set_pci_replay_timeout: replay timeout value before set 0x%x "
6950 	    "(timeout value to set 0x%x at offset 0x%x) value 0x%x",
6951 	    pci_config_get32(dev_regs->nxge_pciregh,
6952 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET), nxge_replay_timeout,
6953 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET, value));
6954 
6955 	pci_config_put32(dev_regs->nxge_pciregh, PCI_REPLAY_TIMEOUT_CFG_OFFSET,
6956 	    value);
6957 
6958 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6959 	    "nxge_set_pci_replay_timeout: replay timeout value after set 0x%x",
6960 	    pci_config_get32(dev_regs->nxge_pciregh,
6961 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET)));
6962 
6963 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_set_pci_replay_timeout"));
6964 }
6965 
6966 /*
6967  * quiesce(9E) entry point.
6968  *
6969  * This function is called when the system is single-threaded at high
6970  * PIL with preemption disabled. Therefore, this function must not be
6971  * blocked.
6972  *
6973  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
6974  * DDI_FAILURE indicates an error condition and should almost never happen.
6975  */
6976 static int
6977 nxge_quiesce(dev_info_t *dip)
6978 {
6979 	int instance = ddi_get_instance(dip);
6980 	p_nxge_t nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
6981 
6982 	if (nxgep == NULL)
6983 		return (DDI_FAILURE);
6984 
6985 	/* Turn off debugging */
6986 	nxge_debug_level = NO_DEBUG;
6987 	nxgep->nxge_debug_level = NO_DEBUG;
6988 	npi_debug_level = NO_DEBUG;
6989 
6990 	/*
6991 	 * Stop link monitor only when linkchkmod is interrupt based
6992 	 */
6993 	if (nxgep->mac.linkchkmode == LINKCHK_INTR) {
6994 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
6995 	}
6996 
6997 	(void) nxge_intr_hw_disable(nxgep);
6998 
6999 	/*
7000 	 * Reset the receive MAC side.
7001 	 */
7002 	(void) nxge_rx_mac_disable(nxgep);
7003 
7004 	/* Disable and soft reset the IPP */
7005 	if (!isLDOMguest(nxgep))
7006 		(void) nxge_ipp_disable(nxgep);
7007 
7008 	/*
7009 	 * Reset the transmit/receive DMA side.
7010 	 */
7011 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
7012 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
7013 
7014 	/*
7015 	 * Reset the transmit MAC side.
7016 	 */
7017 	(void) nxge_tx_mac_disable(nxgep);
7018 
7019 	return (DDI_SUCCESS);
7020 }
7021