xref: /illumos-gate/usr/src/uts/common/io/nxge/nxge_main.c (revision 7b26d9ff)
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  * (This PSARC case is limited to MSI-X vectors
40  *  and SPARC platforms only).
41  */
42 #if defined(_BIG_ENDIAN)
43 uint32_t	nxge_msi_enable = 2;
44 #else
45 uint32_t	nxge_msi_enable = 1;
46 #endif
47 
48 /*
49  * Software workaround for a Neptune (PCI-E)
50  * hardware interrupt bug which the hardware
51  * may generate spurious interrupts after the
52  * device interrupt handler was removed. If this flag
53  * is enabled, the driver will reset the
54  * hardware when devices are being detached.
55  */
56 uint32_t	nxge_peu_reset_enable = 0;
57 
58 /*
59  * Software workaround for the hardware
60  * checksum bugs that affect packet transmission
61  * and receive:
62  *
63  * Usage of nxge_cksum_offload:
64  *
65  *  (1) nxge_cksum_offload = 0 (default):
66  *	- transmits packets:
67  *	  TCP: uses the hardware checksum feature.
68  *	  UDP: driver will compute the software checksum
69  *	       based on the partial checksum computed
70  *	       by the IP layer.
71  *	- receives packets
72  *	  TCP: marks packets checksum flags based on hardware result.
73  *	  UDP: will not mark checksum flags.
74  *
75  *  (2) nxge_cksum_offload = 1:
76  *	- transmit packets:
77  *	  TCP/UDP: uses the hardware checksum feature.
78  *	- receives packets
79  *	  TCP/UDP: marks packet checksum flags based on hardware result.
80  *
81  *  (3) nxge_cksum_offload = 2:
82  *	- The driver will not register its checksum capability.
83  *	  Checksum for both TCP and UDP will be computed
84  *	  by the stack.
85  *	- The software LSO is not allowed in this case.
86  *
87  *  (4) nxge_cksum_offload > 2:
88  *	- Will be treated as it is set to 2
89  *	  (stack will compute the checksum).
90  *
91  *  (5) If the hardware bug is fixed, this workaround
92  *	needs to be updated accordingly to reflect
93  *	the new hardware revision.
94  */
95 uint32_t	nxge_cksum_offload = 0;
96 
97 /*
98  * Globals: tunable parameters (/etc/system or adb)
99  *
100  */
101 uint32_t 	nxge_rbr_size = NXGE_RBR_RBB_DEFAULT;
102 uint32_t 	nxge_rbr_spare_size = 0;
103 uint32_t 	nxge_rcr_size = NXGE_RCR_DEFAULT;
104 uint32_t 	nxge_tx_ring_size = NXGE_TX_RING_DEFAULT;
105 boolean_t 	nxge_no_msg = B_TRUE;		/* control message display */
106 uint32_t 	nxge_no_link_notify = 0;	/* control DL_NOTIFY */
107 uint32_t 	nxge_bcopy_thresh = TX_BCOPY_MAX;
108 uint32_t 	nxge_dvma_thresh = TX_FASTDVMA_MIN;
109 uint32_t 	nxge_dma_stream_thresh = TX_STREAM_MIN;
110 uint32_t	nxge_jumbo_mtu	= TX_JUMBO_MTU;
111 boolean_t	nxge_jumbo_enable = B_FALSE;
112 uint16_t	nxge_rcr_timeout = NXGE_RDC_RCR_TIMEOUT;
113 uint16_t	nxge_rcr_threshold = NXGE_RDC_RCR_THRESHOLD;
114 nxge_tx_mode_t	nxge_tx_scheme = NXGE_USE_SERIAL;
115 
116 /* MAX LSO size */
117 #define		NXGE_LSO_MAXLEN	65535
118 uint32_t	nxge_lso_max = NXGE_LSO_MAXLEN;
119 
120 
121 /*
122  * Add tunable to reduce the amount of time spent in the
123  * ISR doing Rx Processing.
124  */
125 uint32_t nxge_max_rx_pkts = 1024;
126 
127 /*
128  * Tunables to manage the receive buffer blocks.
129  *
130  * nxge_rx_threshold_hi: copy all buffers.
131  * nxge_rx_bcopy_size_type: receive buffer block size type.
132  * nxge_rx_threshold_lo: copy only up to tunable block size type.
133  */
134 nxge_rxbuf_threshold_t nxge_rx_threshold_hi = NXGE_RX_COPY_6;
135 nxge_rxbuf_type_t nxge_rx_buf_size_type = RCR_PKTBUFSZ_0;
136 nxge_rxbuf_threshold_t nxge_rx_threshold_lo = NXGE_RX_COPY_3;
137 
138 /* Use kmem_alloc() to allocate data buffers. */
139 #if defined(_BIG_ENDIAN)
140 uint32_t	nxge_use_kmem_alloc = 1;
141 #else
142 uint32_t	nxge_use_kmem_alloc = 0;
143 #endif
144 
145 rtrace_t npi_rtracebuf;
146 
147 /*
148  * The hardware sometimes fails to allow enough time for the link partner
149  * to send an acknowledgement for packets that the hardware sent to it. The
150  * hardware resends the packets earlier than it should be in those instances.
151  * This behavior caused some switches to acknowledge the wrong packets
152  * and it triggered the fatal error.
153  * This software workaround is to set the replay timer to a value
154  * suggested by the hardware team.
155  *
156  * PCI config space replay timer register:
157  *     The following replay timeout value is 0xc
158  *     for bit 14:18.
159  */
160 #define	PCI_REPLAY_TIMEOUT_CFG_OFFSET	0xb8
161 #define	PCI_REPLAY_TIMEOUT_SHIFT	14
162 
163 uint32_t	nxge_set_replay_timer = 1;
164 uint32_t	nxge_replay_timeout = 0xc;
165 
166 /*
167  * The transmit serialization sometimes causes
168  * longer sleep before calling the driver transmit
169  * function as it sleeps longer than it should.
170  * The performace group suggests that a time wait tunable
171  * can be used to set the maximum wait time when needed
172  * and the default is set to 1 tick.
173  */
174 uint32_t	nxge_tx_serial_maxsleep = 1;
175 
176 #if	defined(sun4v)
177 /*
178  * Hypervisor N2/NIU services information.
179  */
180 static hsvc_info_t niu_hsvc = {
181 	HSVC_REV_1, NULL, HSVC_GROUP_NIU, NIU_MAJOR_VER,
182 	NIU_MINOR_VER, "nxge"
183 };
184 
185 static int nxge_hsvc_register(p_nxge_t);
186 #endif
187 
188 /*
189  * Function Prototypes
190  */
191 static int nxge_attach(dev_info_t *, ddi_attach_cmd_t);
192 static int nxge_detach(dev_info_t *, ddi_detach_cmd_t);
193 static void nxge_unattach(p_nxge_t);
194 static int nxge_quiesce(dev_info_t *);
195 
196 #if NXGE_PROPERTY
197 static void nxge_remove_hard_properties(p_nxge_t);
198 #endif
199 
200 /*
201  * These two functions are required by nxge_hio.c
202  */
203 extern int nxge_m_mmac_remove(void *arg, int slot);
204 extern void nxge_grp_cleanup(p_nxge_t nxge);
205 
206 static nxge_status_t nxge_setup_system_dma_pages(p_nxge_t);
207 
208 static nxge_status_t nxge_setup_mutexes(p_nxge_t);
209 static void nxge_destroy_mutexes(p_nxge_t);
210 
211 static nxge_status_t nxge_map_regs(p_nxge_t nxgep);
212 static void nxge_unmap_regs(p_nxge_t nxgep);
213 #ifdef	NXGE_DEBUG
214 static void nxge_test_map_regs(p_nxge_t nxgep);
215 #endif
216 
217 static nxge_status_t nxge_add_intrs(p_nxge_t nxgep);
218 static void nxge_remove_intrs(p_nxge_t nxgep);
219 
220 static nxge_status_t nxge_add_intrs_adv(p_nxge_t nxgep);
221 static nxge_status_t nxge_add_intrs_adv_type(p_nxge_t, uint32_t);
222 static nxge_status_t nxge_add_intrs_adv_type_fix(p_nxge_t, uint32_t);
223 static void nxge_intrs_enable(p_nxge_t nxgep);
224 static void nxge_intrs_disable(p_nxge_t nxgep);
225 
226 static void nxge_suspend(p_nxge_t);
227 static nxge_status_t nxge_resume(p_nxge_t);
228 
229 static nxge_status_t nxge_setup_dev(p_nxge_t);
230 static void nxge_destroy_dev(p_nxge_t);
231 
232 static nxge_status_t nxge_alloc_mem_pool(p_nxge_t);
233 static void nxge_free_mem_pool(p_nxge_t);
234 
235 nxge_status_t nxge_alloc_rx_mem_pool(p_nxge_t);
236 static void nxge_free_rx_mem_pool(p_nxge_t);
237 
238 nxge_status_t nxge_alloc_tx_mem_pool(p_nxge_t);
239 static void nxge_free_tx_mem_pool(p_nxge_t);
240 
241 static nxge_status_t nxge_dma_mem_alloc(p_nxge_t, dma_method_t,
242 	struct ddi_dma_attr *,
243 	size_t, ddi_device_acc_attr_t *, uint_t,
244 	p_nxge_dma_common_t);
245 
246 static void nxge_dma_mem_free(p_nxge_dma_common_t);
247 static void nxge_dma_free_rx_data_buf(p_nxge_dma_common_t);
248 
249 static nxge_status_t nxge_alloc_rx_buf_dma(p_nxge_t, uint16_t,
250 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
251 static void nxge_free_rx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
252 
253 static nxge_status_t nxge_alloc_rx_cntl_dma(p_nxge_t, uint16_t,
254 	p_nxge_dma_common_t *, size_t);
255 static void nxge_free_rx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
256 
257 extern nxge_status_t nxge_alloc_tx_buf_dma(p_nxge_t, uint16_t,
258 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
259 static void nxge_free_tx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
260 
261 extern nxge_status_t nxge_alloc_tx_cntl_dma(p_nxge_t, uint16_t,
262 	p_nxge_dma_common_t *,
263 	size_t);
264 static void nxge_free_tx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
265 
266 static int nxge_init_common_dev(p_nxge_t);
267 static void nxge_uninit_common_dev(p_nxge_t);
268 extern int nxge_param_set_mac(p_nxge_t, queue_t *, mblk_t *,
269     char *, caddr_t);
270 
271 /*
272  * The next declarations are for the GLDv3 interface.
273  */
274 static int nxge_m_start(void *);
275 static void nxge_m_stop(void *);
276 static int nxge_m_multicst(void *, boolean_t, const uint8_t *);
277 static int nxge_m_promisc(void *, boolean_t);
278 static void nxge_m_ioctl(void *, queue_t *, mblk_t *);
279 static nxge_status_t nxge_mac_register(p_nxge_t);
280 static int nxge_altmac_set(p_nxge_t nxgep, uint8_t *mac_addr,
281 	int slot, int rdctbl, boolean_t usetbl);
282 void nxge_mmac_kstat_update(p_nxge_t nxgep, int slot,
283 	boolean_t factory);
284 #if defined(sun4v)
285 extern mblk_t *nxge_m_tx(void *arg, mblk_t *mp);
286 #endif
287 
288 static void nxge_m_getfactaddr(void *, uint_t, uint8_t *);
289 static	boolean_t nxge_m_getcapab(void *, mac_capab_t, void *);
290 static int nxge_m_setprop(void *, const char *, mac_prop_id_t,
291     uint_t, const void *);
292 static int nxge_m_getprop(void *, const char *, mac_prop_id_t,
293     uint_t, uint_t, void *, uint_t *);
294 static int nxge_set_priv_prop(nxge_t *, const char *, uint_t,
295     const void *);
296 static int nxge_get_priv_prop(nxge_t *, const char *, uint_t, uint_t,
297     void *, uint_t *);
298 static int nxge_get_def_val(nxge_t *, mac_prop_id_t, uint_t, void *);
299 static void nxge_fill_ring(void *, mac_ring_type_t, const int, const int,
300     mac_ring_info_t *, mac_ring_handle_t);
301 static void nxge_group_add_ring(mac_group_driver_t, mac_ring_driver_t,
302     mac_ring_type_t);
303 static void nxge_group_rem_ring(mac_group_driver_t, mac_ring_driver_t,
304     mac_ring_type_t);
305 
306 static void nxge_niu_peu_reset(p_nxge_t nxgep);
307 static void nxge_set_pci_replay_timeout(nxge_t *);
308 
309 mac_priv_prop_t nxge_priv_props[] = {
310 	{"_adv_10gfdx_cap", MAC_PROP_PERM_RW},
311 	{"_adv_pause_cap", MAC_PROP_PERM_RW},
312 	{"_function_number", MAC_PROP_PERM_READ},
313 	{"_fw_version", MAC_PROP_PERM_READ},
314 	{"_port_mode", MAC_PROP_PERM_READ},
315 	{"_hot_swap_phy", MAC_PROP_PERM_READ},
316 	{"_accept_jumbo", MAC_PROP_PERM_RW},
317 	{"_rxdma_intr_time", MAC_PROP_PERM_RW},
318 	{"_rxdma_intr_pkts", MAC_PROP_PERM_RW},
319 	{"_class_opt_ipv4_tcp", MAC_PROP_PERM_RW},
320 	{"_class_opt_ipv4_udp", MAC_PROP_PERM_RW},
321 	{"_class_opt_ipv4_ah", MAC_PROP_PERM_RW},
322 	{"_class_opt_ipv4_sctp", MAC_PROP_PERM_RW},
323 	{"_class_opt_ipv6_tcp", MAC_PROP_PERM_RW},
324 	{"_class_opt_ipv6_udp", MAC_PROP_PERM_RW},
325 	{"_class_opt_ipv6_ah", MAC_PROP_PERM_RW},
326 	{"_class_opt_ipv6_sctp", MAC_PROP_PERM_RW},
327 	{"_soft_lso_enable", MAC_PROP_PERM_RW}
328 };
329 
330 #define	NXGE_MAX_PRIV_PROPS	\
331 	(sizeof (nxge_priv_props)/sizeof (mac_priv_prop_t))
332 
333 #define	NXGE_NEPTUNE_MAGIC	0x4E584745UL
334 #define	MAX_DUMP_SZ 256
335 
336 #define	NXGE_M_CALLBACK_FLAGS	\
337 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP)
338 
339 mac_callbacks_t nxge_m_callbacks = {
340 	NXGE_M_CALLBACK_FLAGS,
341 	nxge_m_stat,
342 	nxge_m_start,
343 	nxge_m_stop,
344 	nxge_m_promisc,
345 	nxge_m_multicst,
346 	NULL,
347 	NULL,
348 	nxge_m_ioctl,
349 	nxge_m_getcapab,
350 	NULL,
351 	NULL,
352 	nxge_m_setprop,
353 	nxge_m_getprop
354 };
355 
356 void
357 nxge_err_inject(p_nxge_t, queue_t *, mblk_t *);
358 
359 /* PSARC/2007/453 MSI-X interrupt limit override. */
360 #define	NXGE_MSIX_REQUEST_10G	8
361 #define	NXGE_MSIX_REQUEST_1G	2
362 static int nxge_create_msi_property(p_nxge_t);
363 /*
364  * For applications that care about the
365  * latency, it was requested by PAE and the
366  * customers that the driver has tunables that
367  * allow the user to tune it to a higher number
368  * interrupts to spread the interrupts among
369  * multiple channels. The DDI framework limits
370  * the maximum number of MSI-X resources to allocate
371  * to 8 (ddi_msix_alloc_limit). If more than 8
372  * is set, ddi_msix_alloc_limit must be set accordingly.
373  * The default number of MSI interrupts are set to
374  * 8 for 10G and 2 for 1G link.
375  */
376 #define	NXGE_MSIX_MAX_ALLOWED	32
377 uint32_t nxge_msix_10g_intrs = NXGE_MSIX_REQUEST_10G;
378 uint32_t nxge_msix_1g_intrs = NXGE_MSIX_REQUEST_1G;
379 
380 /*
381  * These global variables control the message
382  * output.
383  */
384 out_dbgmsg_t nxge_dbgmsg_out = DBG_CONSOLE | STR_LOG;
385 uint64_t nxge_debug_level;
386 
387 /*
388  * This list contains the instance structures for the Neptune
389  * devices present in the system. The lock exists to guarantee
390  * mutually exclusive access to the list.
391  */
392 void 			*nxge_list = NULL;
393 
394 void			*nxge_hw_list = NULL;
395 nxge_os_mutex_t 	nxge_common_lock;
396 
397 extern uint64_t 	npi_debug_level;
398 
399 extern nxge_status_t	nxge_ldgv_init(p_nxge_t, int *, int *);
400 extern nxge_status_t	nxge_ldgv_init_n2(p_nxge_t, int *, int *);
401 extern nxge_status_t	nxge_ldgv_uninit(p_nxge_t);
402 extern nxge_status_t	nxge_intr_ldgv_init(p_nxge_t);
403 extern void		nxge_fm_init(p_nxge_t,
404 					ddi_device_acc_attr_t *,
405 					ddi_device_acc_attr_t *,
406 					ddi_dma_attr_t *);
407 extern void		nxge_fm_fini(p_nxge_t);
408 extern npi_status_t	npi_mac_altaddr_disable(npi_handle_t, uint8_t, uint8_t);
409 
410 /*
411  * Count used to maintain the number of buffers being used
412  * by Neptune instances and loaned up to the upper layers.
413  */
414 uint32_t nxge_mblks_pending = 0;
415 
416 /*
417  * Device register access attributes for PIO.
418  */
419 static ddi_device_acc_attr_t nxge_dev_reg_acc_attr = {
420 	DDI_DEVICE_ATTR_V0,
421 	DDI_STRUCTURE_LE_ACC,
422 	DDI_STRICTORDER_ACC,
423 };
424 
425 /*
426  * Device descriptor access attributes for DMA.
427  */
428 static ddi_device_acc_attr_t nxge_dev_desc_dma_acc_attr = {
429 	DDI_DEVICE_ATTR_V0,
430 	DDI_STRUCTURE_LE_ACC,
431 	DDI_STRICTORDER_ACC
432 };
433 
434 /*
435  * Device buffer access attributes for DMA.
436  */
437 static ddi_device_acc_attr_t nxge_dev_buf_dma_acc_attr = {
438 	DDI_DEVICE_ATTR_V0,
439 	DDI_STRUCTURE_BE_ACC,
440 	DDI_STRICTORDER_ACC
441 };
442 
443 ddi_dma_attr_t nxge_desc_dma_attr = {
444 	DMA_ATTR_V0,		/* version number. */
445 	0,			/* low address */
446 	0xffffffffffffffff,	/* high address */
447 	0xffffffffffffffff,	/* address counter max */
448 #ifndef NIU_PA_WORKAROUND
449 	0x100000,		/* alignment */
450 #else
451 	0x2000,
452 #endif
453 	0xfc00fc,		/* dlim_burstsizes */
454 	0x1,			/* minimum transfer size */
455 	0xffffffffffffffff,	/* maximum transfer size */
456 	0xffffffffffffffff,	/* maximum segment size */
457 	1,			/* scatter/gather list length */
458 	(unsigned int) 1,	/* granularity */
459 	0			/* attribute flags */
460 };
461 
462 ddi_dma_attr_t nxge_tx_dma_attr = {
463 	DMA_ATTR_V0,		/* version number. */
464 	0,			/* low address */
465 	0xffffffffffffffff,	/* high address */
466 	0xffffffffffffffff,	/* address counter max */
467 #if defined(_BIG_ENDIAN)
468 	0x2000,			/* alignment */
469 #else
470 	0x1000,			/* alignment */
471 #endif
472 	0xfc00fc,		/* dlim_burstsizes */
473 	0x1,			/* minimum transfer size */
474 	0xffffffffffffffff,	/* maximum transfer size */
475 	0xffffffffffffffff,	/* maximum segment size */
476 	5,			/* scatter/gather list length */
477 	(unsigned int) 1,	/* granularity */
478 	0			/* attribute flags */
479 };
480 
481 ddi_dma_attr_t nxge_rx_dma_attr = {
482 	DMA_ATTR_V0,		/* version number. */
483 	0,			/* low address */
484 	0xffffffffffffffff,	/* high address */
485 	0xffffffffffffffff,	/* address counter max */
486 	0x2000,			/* alignment */
487 	0xfc00fc,		/* dlim_burstsizes */
488 	0x1,			/* minimum transfer size */
489 	0xffffffffffffffff,	/* maximum transfer size */
490 	0xffffffffffffffff,	/* maximum segment size */
491 	1,			/* scatter/gather list length */
492 	(unsigned int) 1,	/* granularity */
493 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
494 };
495 
496 ddi_dma_lim_t nxge_dma_limits = {
497 	(uint_t)0,		/* dlim_addr_lo */
498 	(uint_t)0xffffffff,	/* dlim_addr_hi */
499 	(uint_t)0xffffffff,	/* dlim_cntr_max */
500 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
501 	0x1,			/* dlim_minxfer */
502 	1024			/* dlim_speed */
503 };
504 
505 dma_method_t nxge_force_dma = DVMA;
506 
507 /*
508  * dma chunk sizes.
509  *
510  * Try to allocate the largest possible size
511  * so that fewer number of dma chunks would be managed
512  */
513 #ifdef NIU_PA_WORKAROUND
514 size_t alloc_sizes [] = {0x2000};
515 #else
516 size_t alloc_sizes [] = {0x1000, 0x2000, 0x4000, 0x8000,
517 		0x10000, 0x20000, 0x40000, 0x80000,
518 		0x100000, 0x200000, 0x400000, 0x800000,
519 		0x1000000, 0x2000000, 0x4000000};
520 #endif
521 
522 /*
523  * Translate "dev_t" to a pointer to the associated "dev_info_t".
524  */
525 
526 extern void nxge_get_environs(nxge_t *);
527 
528 static int
529 nxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
530 {
531 	p_nxge_t	nxgep = NULL;
532 	int		instance;
533 	int		status = DDI_SUCCESS;
534 	uint8_t		portn;
535 	nxge_mmac_t	*mmac_info;
536 	p_nxge_param_t	param_arr;
537 
538 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_attach"));
539 
540 	/*
541 	 * Get the device instance since we'll need to setup
542 	 * or retrieve a soft state for this instance.
543 	 */
544 	instance = ddi_get_instance(dip);
545 
546 	switch (cmd) {
547 	case DDI_ATTACH:
548 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_ATTACH"));
549 		break;
550 
551 	case DDI_RESUME:
552 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_RESUME"));
553 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
554 		if (nxgep == NULL) {
555 			status = DDI_FAILURE;
556 			break;
557 		}
558 		if (nxgep->dip != dip) {
559 			status = DDI_FAILURE;
560 			break;
561 		}
562 		if (nxgep->suspended == DDI_PM_SUSPEND) {
563 			status = ddi_dev_is_needed(nxgep->dip, 0, 1);
564 		} else {
565 			status = nxge_resume(nxgep);
566 		}
567 		goto nxge_attach_exit;
568 
569 	case DDI_PM_RESUME:
570 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_RESUME"));
571 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
572 		if (nxgep == NULL) {
573 			status = DDI_FAILURE;
574 			break;
575 		}
576 		if (nxgep->dip != dip) {
577 			status = DDI_FAILURE;
578 			break;
579 		}
580 		status = nxge_resume(nxgep);
581 		goto nxge_attach_exit;
582 
583 	default:
584 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing unknown"));
585 		status = DDI_FAILURE;
586 		goto nxge_attach_exit;
587 	}
588 
589 
590 	if (ddi_soft_state_zalloc(nxge_list, instance) == DDI_FAILURE) {
591 		status = DDI_FAILURE;
592 		goto nxge_attach_exit;
593 	}
594 
595 	nxgep = ddi_get_soft_state(nxge_list, instance);
596 	if (nxgep == NULL) {
597 		status = NXGE_ERROR;
598 		goto nxge_attach_fail2;
599 	}
600 
601 	nxgep->nxge_magic = NXGE_MAGIC;
602 
603 	nxgep->drv_state = 0;
604 	nxgep->dip = dip;
605 	nxgep->instance = instance;
606 	nxgep->p_dip = ddi_get_parent(dip);
607 	nxgep->nxge_debug_level = nxge_debug_level;
608 	npi_debug_level = nxge_debug_level;
609 
610 	/* Are we a guest running in a Hybrid I/O environment? */
611 	nxge_get_environs(nxgep);
612 
613 	status = nxge_map_regs(nxgep);
614 
615 	if (status != NXGE_OK) {
616 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_map_regs failed"));
617 		goto nxge_attach_fail3;
618 	}
619 
620 	nxge_fm_init(nxgep, &nxge_dev_reg_acc_attr,
621 	    &nxge_dev_desc_dma_acc_attr,
622 	    &nxge_rx_dma_attr);
623 
624 	/* Create & initialize the per-Neptune data structure */
625 	/* (even if we're a guest). */
626 	status = nxge_init_common_dev(nxgep);
627 	if (status != NXGE_OK) {
628 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
629 		    "nxge_init_common_dev failed"));
630 		goto nxge_attach_fail4;
631 	}
632 
633 	/*
634 	 * Software workaround: set the replay timer.
635 	 */
636 	if (nxgep->niu_type != N2_NIU) {
637 		nxge_set_pci_replay_timeout(nxgep);
638 	}
639 #if defined(sun4v)
640 	if (isLDOMguest(nxgep)) {
641 		nxge_m_callbacks.mc_tx = nxge_m_tx;
642 	}
643 #endif
644 
645 #if defined(sun4v)
646 	/* This is required by nxge_hio_init(), which follows. */
647 	if ((status = nxge_hsvc_register(nxgep)) != DDI_SUCCESS)
648 		goto nxge_attach_fail4;
649 #endif
650 
651 	if ((status = nxge_hio_init(nxgep)) != NXGE_OK) {
652 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
653 		    "nxge_hio_init failed"));
654 		goto nxge_attach_fail4;
655 	}
656 
657 	if (nxgep->niu_type == NEPTUNE_2_10GF) {
658 		if (nxgep->function_num > 1) {
659 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Unsupported"
660 			    " function %d. Only functions 0 and 1 are "
661 			    "supported for this card.", nxgep->function_num));
662 			status = NXGE_ERROR;
663 			goto nxge_attach_fail4;
664 		}
665 	}
666 
667 	if (isLDOMguest(nxgep)) {
668 		/*
669 		 * Use the function number here.
670 		 */
671 		nxgep->mac.portnum = nxgep->function_num;
672 		nxgep->mac.porttype = PORT_TYPE_LOGICAL;
673 
674 		/* XXX We'll set the MAC address counts to 1 for now. */
675 		mmac_info = &nxgep->nxge_mmac_info;
676 		mmac_info->num_mmac = 1;
677 		mmac_info->naddrfree = 1;
678 	} else {
679 		portn = NXGE_GET_PORT_NUM(nxgep->function_num);
680 		nxgep->mac.portnum = portn;
681 		if ((portn == 0) || (portn == 1))
682 			nxgep->mac.porttype = PORT_TYPE_XMAC;
683 		else
684 			nxgep->mac.porttype = PORT_TYPE_BMAC;
685 		/*
686 		 * Neptune has 4 ports, the first 2 ports use XMAC (10G MAC)
687 		 * internally, the rest 2 ports use BMAC (1G "Big" MAC).
688 		 * The two types of MACs have different characterizations.
689 		 */
690 		mmac_info = &nxgep->nxge_mmac_info;
691 		if (nxgep->function_num < 2) {
692 			mmac_info->num_mmac = XMAC_MAX_ALT_ADDR_ENTRY;
693 			mmac_info->naddrfree = XMAC_MAX_ALT_ADDR_ENTRY;
694 		} else {
695 			mmac_info->num_mmac = BMAC_MAX_ALT_ADDR_ENTRY;
696 			mmac_info->naddrfree = BMAC_MAX_ALT_ADDR_ENTRY;
697 		}
698 	}
699 	/*
700 	 * Setup the Ndd parameters for the this instance.
701 	 */
702 	nxge_init_param(nxgep);
703 
704 	/*
705 	 * Setup Register Tracing Buffer.
706 	 */
707 	npi_rtrace_buf_init((rtrace_t *)&npi_rtracebuf);
708 
709 	/* init stats ptr */
710 	nxge_init_statsp(nxgep);
711 
712 	/*
713 	 * Copy the vpd info from eeprom to a local data
714 	 * structure, and then check its validity.
715 	 */
716 	if (!isLDOMguest(nxgep)) {
717 		int *regp;
718 		uint_t reglen;
719 		int rv;
720 
721 		nxge_vpd_info_get(nxgep);
722 
723 		/* Find the NIU config handle. */
724 		rv = ddi_prop_lookup_int_array(DDI_DEV_T_ANY,
725 		    ddi_get_parent(nxgep->dip), DDI_PROP_DONTPASS,
726 		    "reg", &regp, &reglen);
727 
728 		if (rv != DDI_PROP_SUCCESS) {
729 			goto nxge_attach_fail5;
730 		}
731 		/*
732 		 * The address_hi, that is the first int, in the reg
733 		 * property consists of config handle, but need to remove
734 		 * the bits 28-31 which are OBP specific info.
735 		 */
736 		nxgep->niu_cfg_hdl = (*regp) & 0xFFFFFFF;
737 		ddi_prop_free(regp);
738 	}
739 
740 	if (isLDOMguest(nxgep)) {
741 		uchar_t *prop_val;
742 		uint_t prop_len;
743 		uint32_t max_frame_size;
744 
745 		extern void nxge_get_logical_props(p_nxge_t);
746 
747 		nxgep->statsp->mac_stats.xcvr_inuse = LOGICAL_XCVR;
748 		nxgep->mac.portmode = PORT_LOGICAL;
749 		(void) ddi_prop_update_string(DDI_DEV_T_NONE, nxgep->dip,
750 		    "phy-type", "virtual transceiver");
751 
752 		nxgep->nports = 1;
753 		nxgep->board_ver = 0;	/* XXX What? */
754 
755 		/*
756 		 * local-mac-address property gives us info on which
757 		 * specific MAC address the Hybrid resource is associated
758 		 * with.
759 		 */
760 		if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, nxgep->dip, 0,
761 		    "local-mac-address", &prop_val,
762 		    &prop_len) != DDI_PROP_SUCCESS) {
763 			goto nxge_attach_fail5;
764 		}
765 		if (prop_len !=  ETHERADDRL) {
766 			ddi_prop_free(prop_val);
767 			goto nxge_attach_fail5;
768 		}
769 		ether_copy(prop_val, nxgep->hio_mac_addr);
770 		ddi_prop_free(prop_val);
771 		nxge_get_logical_props(nxgep);
772 
773 		/*
774 		 * Enable Jumbo property based on the "max-frame-size"
775 		 * property value.
776 		 */
777 		max_frame_size = ddi_prop_get_int(DDI_DEV_T_ANY,
778 		    nxgep->dip, DDI_PROP_DONTPASS | DDI_PROP_NOTPROM,
779 		    "max-frame-size", NXGE_MTU_DEFAULT_MAX);
780 		if ((max_frame_size > NXGE_MTU_DEFAULT_MAX) &&
781 		    (max_frame_size <= TX_JUMBO_MTU)) {
782 			param_arr = nxgep->param_arr;
783 
784 			param_arr[param_accept_jumbo].value = 1;
785 			nxgep->mac.is_jumbo = B_TRUE;
786 			nxgep->mac.maxframesize = (uint16_t)max_frame_size;
787 			nxgep->mac.default_mtu = nxgep->mac.maxframesize -
788 			    NXGE_EHEADER_VLAN_CRC;
789 		}
790 	} else {
791 		status = nxge_xcvr_find(nxgep);
792 
793 		if (status != NXGE_OK) {
794 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_attach: "
795 			    " Couldn't determine card type"
796 			    " .... exit "));
797 			goto nxge_attach_fail5;
798 		}
799 
800 		status = nxge_get_config_properties(nxgep);
801 
802 		if (status != NXGE_OK) {
803 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
804 			    "get_hw create failed"));
805 			goto nxge_attach_fail;
806 		}
807 	}
808 
809 	/*
810 	 * Setup the Kstats for the driver.
811 	 */
812 	nxge_setup_kstats(nxgep);
813 
814 	if (!isLDOMguest(nxgep))
815 		nxge_setup_param(nxgep);
816 
817 	status = nxge_setup_system_dma_pages(nxgep);
818 	if (status != NXGE_OK) {
819 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "set dma page failed"));
820 		goto nxge_attach_fail;
821 	}
822 
823 	nxge_hw_id_init(nxgep);
824 
825 	if (!isLDOMguest(nxgep))
826 		nxge_hw_init_niu_common(nxgep);
827 
828 	status = nxge_setup_mutexes(nxgep);
829 	if (status != NXGE_OK) {
830 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set mutex failed"));
831 		goto nxge_attach_fail;
832 	}
833 
834 #if defined(sun4v)
835 	if (isLDOMguest(nxgep)) {
836 		/* Find our VR & channel sets. */
837 		status = nxge_hio_vr_add(nxgep);
838 		if (status != NXGE_OK) {
839 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
840 			    "nxge_hio_vr_add failed"));
841 			(void) hsvc_unregister(&nxgep->niu_hsvc);
842 			nxgep->niu_hsvc_available = B_FALSE;
843 		}
844 		goto nxge_attach_exit;
845 	}
846 #endif
847 
848 	status = nxge_setup_dev(nxgep);
849 	if (status != DDI_SUCCESS) {
850 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set dev failed"));
851 		goto nxge_attach_fail;
852 	}
853 
854 	status = nxge_add_intrs(nxgep);
855 	if (status != DDI_SUCCESS) {
856 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "add_intr failed"));
857 		goto nxge_attach_fail;
858 	}
859 
860 	/* If a guest, register with vio_net instead. */
861 	if ((status = nxge_mac_register(nxgep)) != NXGE_OK) {
862 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
863 		    "unable to register to mac layer (%d)", status));
864 		goto nxge_attach_fail;
865 	}
866 
867 	mac_link_update(nxgep->mach, LINK_STATE_UNKNOWN);
868 
869 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
870 	    "registered to mac (instance %d)", instance));
871 
872 	/* nxge_link_monitor calls xcvr.check_link recursively */
873 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
874 
875 	goto nxge_attach_exit;
876 
877 nxge_attach_fail:
878 	nxge_unattach(nxgep);
879 	goto nxge_attach_fail1;
880 
881 nxge_attach_fail5:
882 	/*
883 	 * Tear down the ndd parameters setup.
884 	 */
885 	nxge_destroy_param(nxgep);
886 
887 	/*
888 	 * Tear down the kstat setup.
889 	 */
890 	nxge_destroy_kstats(nxgep);
891 
892 nxge_attach_fail4:
893 	if (nxgep->nxge_hw_p) {
894 		nxge_uninit_common_dev(nxgep);
895 		nxgep->nxge_hw_p = NULL;
896 	}
897 
898 nxge_attach_fail3:
899 	/*
900 	 * Unmap the register setup.
901 	 */
902 	nxge_unmap_regs(nxgep);
903 
904 	nxge_fm_fini(nxgep);
905 
906 nxge_attach_fail2:
907 	ddi_soft_state_free(nxge_list, nxgep->instance);
908 
909 nxge_attach_fail1:
910 	if (status != NXGE_OK)
911 		status = (NXGE_ERROR | NXGE_DDI_FAILED);
912 	nxgep = NULL;
913 
914 nxge_attach_exit:
915 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_attach status = 0x%08x",
916 	    status));
917 
918 	return (status);
919 }
920 
921 static int
922 nxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
923 {
924 	int 		status = DDI_SUCCESS;
925 	int 		instance;
926 	p_nxge_t 	nxgep = NULL;
927 
928 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_detach"));
929 	instance = ddi_get_instance(dip);
930 	nxgep = ddi_get_soft_state(nxge_list, instance);
931 	if (nxgep == NULL) {
932 		status = DDI_FAILURE;
933 		goto nxge_detach_exit;
934 	}
935 
936 	switch (cmd) {
937 	case DDI_DETACH:
938 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_DETACH"));
939 		break;
940 
941 	case DDI_PM_SUSPEND:
942 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
943 		nxgep->suspended = DDI_PM_SUSPEND;
944 		nxge_suspend(nxgep);
945 		break;
946 
947 	case DDI_SUSPEND:
948 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_SUSPEND"));
949 		if (nxgep->suspended != DDI_PM_SUSPEND) {
950 			nxgep->suspended = DDI_SUSPEND;
951 			nxge_suspend(nxgep);
952 		}
953 		break;
954 
955 	default:
956 		status = DDI_FAILURE;
957 	}
958 
959 	if (cmd != DDI_DETACH)
960 		goto nxge_detach_exit;
961 
962 	/*
963 	 * Stop the xcvr polling.
964 	 */
965 	nxgep->suspended = cmd;
966 
967 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
968 
969 	if (isLDOMguest(nxgep)) {
970 		if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
971 			nxge_m_stop((void *)nxgep);
972 		nxge_hio_unregister(nxgep);
973 	} else if (nxgep->mach && (status = mac_unregister(nxgep->mach)) != 0) {
974 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
975 		    "<== nxge_detach status = 0x%08X", status));
976 		return (DDI_FAILURE);
977 	}
978 
979 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
980 	    "<== nxge_detach (mac_unregister) status = 0x%08X", status));
981 
982 	nxge_unattach(nxgep);
983 	nxgep = NULL;
984 
985 nxge_detach_exit:
986 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_detach status = 0x%08X",
987 	    status));
988 
989 	return (status);
990 }
991 
992 static void
993 nxge_unattach(p_nxge_t nxgep)
994 {
995 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unattach"));
996 
997 	if (nxgep == NULL || nxgep->dev_regs == NULL) {
998 		return;
999 	}
1000 
1001 	nxgep->nxge_magic = 0;
1002 
1003 	if (nxgep->nxge_timerid) {
1004 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1005 		nxgep->nxge_timerid = 0;
1006 	}
1007 
1008 	/*
1009 	 * If this flag is set, it will affect the Neptune
1010 	 * only.
1011 	 */
1012 	if ((nxgep->niu_type != N2_NIU) && nxge_peu_reset_enable) {
1013 		nxge_niu_peu_reset(nxgep);
1014 	}
1015 
1016 #if	defined(sun4v)
1017 	if (isLDOMguest(nxgep)) {
1018 		(void) nxge_hio_vr_release(nxgep);
1019 	}
1020 #endif
1021 
1022 	if (nxgep->nxge_hw_p) {
1023 		nxge_uninit_common_dev(nxgep);
1024 		nxgep->nxge_hw_p = NULL;
1025 	}
1026 
1027 #if	defined(sun4v)
1028 	if (nxgep->niu_type == N2_NIU && nxgep->niu_hsvc_available == B_TRUE) {
1029 		(void) hsvc_unregister(&nxgep->niu_hsvc);
1030 		nxgep->niu_hsvc_available = B_FALSE;
1031 	}
1032 #endif
1033 	/*
1034 	 * Stop any further interrupts.
1035 	 */
1036 	nxge_remove_intrs(nxgep);
1037 
1038 	/*
1039 	 * Stop the device and free resources.
1040 	 */
1041 	if (!isLDOMguest(nxgep)) {
1042 		nxge_destroy_dev(nxgep);
1043 	}
1044 
1045 	/*
1046 	 * Tear down the ndd parameters setup.
1047 	 */
1048 	nxge_destroy_param(nxgep);
1049 
1050 	/*
1051 	 * Tear down the kstat setup.
1052 	 */
1053 	nxge_destroy_kstats(nxgep);
1054 
1055 	/*
1056 	 * Destroy all mutexes.
1057 	 */
1058 	nxge_destroy_mutexes(nxgep);
1059 
1060 	/*
1061 	 * Remove the list of ndd parameters which
1062 	 * were setup during attach.
1063 	 */
1064 	if (nxgep->dip) {
1065 		NXGE_DEBUG_MSG((nxgep, OBP_CTL,
1066 		    " nxge_unattach: remove all properties"));
1067 
1068 		(void) ddi_prop_remove_all(nxgep->dip);
1069 	}
1070 
1071 #if NXGE_PROPERTY
1072 	nxge_remove_hard_properties(nxgep);
1073 #endif
1074 
1075 	/*
1076 	 * Unmap the register setup.
1077 	 */
1078 	nxge_unmap_regs(nxgep);
1079 
1080 	nxge_fm_fini(nxgep);
1081 
1082 	ddi_soft_state_free(nxge_list, nxgep->instance);
1083 
1084 	NXGE_DEBUG_MSG((NULL, DDI_CTL, "<== nxge_unattach"));
1085 }
1086 
1087 #if defined(sun4v)
1088 int
1089 nxge_hsvc_register(nxge_t *nxgep)
1090 {
1091 	nxge_status_t status;
1092 
1093 	if (nxgep->niu_type == N2_NIU) {
1094 		nxgep->niu_hsvc_available = B_FALSE;
1095 		bcopy(&niu_hsvc, &nxgep->niu_hsvc, sizeof (hsvc_info_t));
1096 		if ((status = hsvc_register(&nxgep->niu_hsvc,
1097 		    &nxgep->niu_min_ver)) != 0) {
1098 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1099 			    "nxge_attach: %s: cannot negotiate "
1100 			    "hypervisor services revision %d group: 0x%lx "
1101 			    "major: 0x%lx minor: 0x%lx errno: %d",
1102 			    niu_hsvc.hsvc_modname, niu_hsvc.hsvc_rev,
1103 			    niu_hsvc.hsvc_group, niu_hsvc.hsvc_major,
1104 			    niu_hsvc.hsvc_minor, status));
1105 			return (DDI_FAILURE);
1106 		}
1107 		nxgep->niu_hsvc_available = B_TRUE;
1108 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1109 		    "NIU Hypervisor service enabled"));
1110 	}
1111 
1112 	return (DDI_SUCCESS);
1113 }
1114 #endif
1115 
1116 static char n2_siu_name[] = "niu";
1117 
1118 static nxge_status_t
1119 nxge_map_regs(p_nxge_t nxgep)
1120 {
1121 	int		ddi_status = DDI_SUCCESS;
1122 	p_dev_regs_t 	dev_regs;
1123 	char		buf[MAXPATHLEN + 1];
1124 	char 		*devname;
1125 #ifdef	NXGE_DEBUG
1126 	char 		*sysname;
1127 #endif
1128 	off_t		regsize;
1129 	nxge_status_t	status = NXGE_OK;
1130 #if !defined(_BIG_ENDIAN)
1131 	off_t pci_offset;
1132 	uint16_t pcie_devctl;
1133 #endif
1134 
1135 	if (isLDOMguest(nxgep)) {
1136 		return (nxge_guest_regs_map(nxgep));
1137 	}
1138 
1139 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_map_regs"));
1140 	nxgep->dev_regs = NULL;
1141 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
1142 	dev_regs->nxge_regh = NULL;
1143 	dev_regs->nxge_pciregh = NULL;
1144 	dev_regs->nxge_msix_regh = NULL;
1145 	dev_regs->nxge_vir_regh = NULL;
1146 	dev_regs->nxge_vir2_regh = NULL;
1147 	nxgep->niu_type = NIU_TYPE_NONE;
1148 
1149 	devname = ddi_pathname(nxgep->dip, buf);
1150 	ASSERT(strlen(devname) > 0);
1151 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1152 	    "nxge_map_regs: pathname devname %s", devname));
1153 
1154 	/*
1155 	 * The driver is running on a N2-NIU system if devname is something
1156 	 * like "/niu@80/network@0"
1157 	 */
1158 	if (strstr(devname, n2_siu_name)) {
1159 		/* N2/NIU */
1160 		nxgep->niu_type = N2_NIU;
1161 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1162 		    "nxge_map_regs: N2/NIU devname %s", devname));
1163 		/* get function number */
1164 		nxgep->function_num =
1165 		    (devname[strlen(devname) -1] == '1' ? 1 : 0);
1166 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1167 		    "nxge_map_regs: N2/NIU function number %d",
1168 		    nxgep->function_num));
1169 	} else {
1170 		int		*prop_val;
1171 		uint_t 		prop_len;
1172 		uint8_t 	func_num;
1173 
1174 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, nxgep->dip,
1175 		    0, "reg",
1176 		    &prop_val, &prop_len) != DDI_PROP_SUCCESS) {
1177 			NXGE_DEBUG_MSG((nxgep, VPD_CTL,
1178 			    "Reg property not found"));
1179 			ddi_status = DDI_FAILURE;
1180 			goto nxge_map_regs_fail0;
1181 
1182 		} else {
1183 			func_num = (prop_val[0] >> 8) & 0x7;
1184 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1185 			    "Reg property found: fun # %d",
1186 			    func_num));
1187 			nxgep->function_num = func_num;
1188 			if (isLDOMguest(nxgep)) {
1189 				nxgep->function_num /= 2;
1190 				return (NXGE_OK);
1191 			}
1192 			ddi_prop_free(prop_val);
1193 		}
1194 	}
1195 
1196 	switch (nxgep->niu_type) {
1197 	default:
1198 		(void) ddi_dev_regsize(nxgep->dip, 0, &regsize);
1199 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1200 		    "nxge_map_regs: pci config size 0x%x", regsize));
1201 
1202 		ddi_status = ddi_regs_map_setup(nxgep->dip, 0,
1203 		    (caddr_t *)&(dev_regs->nxge_pciregp), 0, 0,
1204 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_pciregh);
1205 		if (ddi_status != DDI_SUCCESS) {
1206 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1207 			    "ddi_map_regs, nxge bus config regs failed"));
1208 			goto nxge_map_regs_fail0;
1209 		}
1210 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1211 		    "nxge_map_reg: PCI config addr 0x%0llx "
1212 		    " handle 0x%0llx", dev_regs->nxge_pciregp,
1213 		    dev_regs->nxge_pciregh));
1214 			/*
1215 			 * IMP IMP
1216 			 * workaround  for bit swapping bug in HW
1217 			 * which ends up in no-snoop = yes
1218 			 * resulting, in DMA not synched properly
1219 			 */
1220 #if !defined(_BIG_ENDIAN)
1221 		/* workarounds for x86 systems */
1222 		pci_offset = 0x80 + PCIE_DEVCTL;
1223 		pcie_devctl = 0x0;
1224 		pcie_devctl &= PCIE_DEVCTL_ENABLE_NO_SNOOP;
1225 		pcie_devctl |= PCIE_DEVCTL_RO_EN;
1226 		pci_config_put16(dev_regs->nxge_pciregh, pci_offset,
1227 		    pcie_devctl);
1228 #endif
1229 
1230 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1231 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1232 		    "nxge_map_regs: pio size 0x%x", regsize));
1233 		/* set up the device mapped register */
1234 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1235 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1236 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1237 		if (ddi_status != DDI_SUCCESS) {
1238 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1239 			    "ddi_map_regs for Neptune global reg failed"));
1240 			goto nxge_map_regs_fail1;
1241 		}
1242 
1243 		/* set up the msi/msi-x mapped register */
1244 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1245 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1246 		    "nxge_map_regs: msix size 0x%x", regsize));
1247 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1248 		    (caddr_t *)&(dev_regs->nxge_msix_regp), 0, 0,
1249 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_msix_regh);
1250 		if (ddi_status != DDI_SUCCESS) {
1251 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1252 			    "ddi_map_regs for msi reg failed"));
1253 			goto nxge_map_regs_fail2;
1254 		}
1255 
1256 		/* set up the vio region mapped register */
1257 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1258 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1259 		    "nxge_map_regs: vio size 0x%x", regsize));
1260 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1261 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1262 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1263 
1264 		if (ddi_status != DDI_SUCCESS) {
1265 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1266 			    "ddi_map_regs for nxge vio reg failed"));
1267 			goto nxge_map_regs_fail3;
1268 		}
1269 		nxgep->dev_regs = dev_regs;
1270 
1271 		NPI_PCI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_pciregh);
1272 		NPI_PCI_ADD_HANDLE_SET(nxgep,
1273 		    (npi_reg_ptr_t)dev_regs->nxge_pciregp);
1274 		NPI_MSI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_msix_regh);
1275 		NPI_MSI_ADD_HANDLE_SET(nxgep,
1276 		    (npi_reg_ptr_t)dev_regs->nxge_msix_regp);
1277 
1278 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1279 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1280 
1281 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1282 		NPI_REG_ADD_HANDLE_SET(nxgep,
1283 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1284 
1285 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1286 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1287 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1288 
1289 		break;
1290 
1291 	case N2_NIU:
1292 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "ddi_map_regs, NIU"));
1293 		/*
1294 		 * Set up the device mapped register (FWARC 2006/556)
1295 		 * (changed back to 1: reg starts at 1!)
1296 		 */
1297 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1298 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1299 		    "nxge_map_regs: dev size 0x%x", regsize));
1300 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1301 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1302 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1303 
1304 		if (ddi_status != DDI_SUCCESS) {
1305 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1306 			    "ddi_map_regs for N2/NIU, global reg failed "));
1307 			goto nxge_map_regs_fail1;
1308 		}
1309 
1310 		/* set up the first vio region mapped register */
1311 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1312 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1313 		    "nxge_map_regs: vio (1) size 0x%x", regsize));
1314 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1315 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1316 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1317 
1318 		if (ddi_status != DDI_SUCCESS) {
1319 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1320 			    "ddi_map_regs for nxge vio reg failed"));
1321 			goto nxge_map_regs_fail2;
1322 		}
1323 		/* set up the second vio region mapped register */
1324 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1325 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1326 		    "nxge_map_regs: vio (3) size 0x%x", regsize));
1327 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1328 		    (caddr_t *)&(dev_regs->nxge_vir2_regp), 0, 0,
1329 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir2_regh);
1330 
1331 		if (ddi_status != DDI_SUCCESS) {
1332 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1333 			    "ddi_map_regs for nxge vio2 reg failed"));
1334 			goto nxge_map_regs_fail3;
1335 		}
1336 		nxgep->dev_regs = dev_regs;
1337 
1338 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1339 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1340 
1341 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1342 		NPI_REG_ADD_HANDLE_SET(nxgep,
1343 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1344 
1345 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1346 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1347 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1348 
1349 		NPI_V2REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir2_regh);
1350 		NPI_V2REG_ADD_HANDLE_SET(nxgep,
1351 		    (npi_reg_ptr_t)dev_regs->nxge_vir2_regp);
1352 
1353 		break;
1354 	}
1355 
1356 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "nxge_map_reg: hardware addr 0x%0llx "
1357 	    " handle 0x%0llx", dev_regs->nxge_regp, dev_regs->nxge_regh));
1358 
1359 	goto nxge_map_regs_exit;
1360 nxge_map_regs_fail3:
1361 	if (dev_regs->nxge_msix_regh) {
1362 		ddi_regs_map_free(&dev_regs->nxge_msix_regh);
1363 	}
1364 	if (dev_regs->nxge_vir_regh) {
1365 		ddi_regs_map_free(&dev_regs->nxge_regh);
1366 	}
1367 nxge_map_regs_fail2:
1368 	if (dev_regs->nxge_regh) {
1369 		ddi_regs_map_free(&dev_regs->nxge_regh);
1370 	}
1371 nxge_map_regs_fail1:
1372 	if (dev_regs->nxge_pciregh) {
1373 		ddi_regs_map_free(&dev_regs->nxge_pciregh);
1374 	}
1375 nxge_map_regs_fail0:
1376 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Freeing register set memory"));
1377 	kmem_free(dev_regs, sizeof (dev_regs_t));
1378 
1379 nxge_map_regs_exit:
1380 	if (ddi_status != DDI_SUCCESS)
1381 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1382 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_map_regs"));
1383 	return (status);
1384 }
1385 
1386 static void
1387 nxge_unmap_regs(p_nxge_t nxgep)
1388 {
1389 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unmap_regs"));
1390 
1391 	if (isLDOMguest(nxgep)) {
1392 		nxge_guest_regs_map_free(nxgep);
1393 		return;
1394 	}
1395 
1396 	if (nxgep->dev_regs) {
1397 		if (nxgep->dev_regs->nxge_pciregh) {
1398 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1399 			    "==> nxge_unmap_regs: bus"));
1400 			ddi_regs_map_free(&nxgep->dev_regs->nxge_pciregh);
1401 			nxgep->dev_regs->nxge_pciregh = NULL;
1402 		}
1403 		if (nxgep->dev_regs->nxge_regh) {
1404 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1405 			    "==> nxge_unmap_regs: device registers"));
1406 			ddi_regs_map_free(&nxgep->dev_regs->nxge_regh);
1407 			nxgep->dev_regs->nxge_regh = NULL;
1408 		}
1409 		if (nxgep->dev_regs->nxge_msix_regh) {
1410 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1411 			    "==> nxge_unmap_regs: device interrupts"));
1412 			ddi_regs_map_free(&nxgep->dev_regs->nxge_msix_regh);
1413 			nxgep->dev_regs->nxge_msix_regh = NULL;
1414 		}
1415 		if (nxgep->dev_regs->nxge_vir_regh) {
1416 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1417 			    "==> nxge_unmap_regs: vio region"));
1418 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir_regh);
1419 			nxgep->dev_regs->nxge_vir_regh = NULL;
1420 		}
1421 		if (nxgep->dev_regs->nxge_vir2_regh) {
1422 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1423 			    "==> nxge_unmap_regs: vio2 region"));
1424 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir2_regh);
1425 			nxgep->dev_regs->nxge_vir2_regh = NULL;
1426 		}
1427 
1428 		kmem_free(nxgep->dev_regs, sizeof (dev_regs_t));
1429 		nxgep->dev_regs = NULL;
1430 	}
1431 
1432 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_unmap_regs"));
1433 }
1434 
1435 static nxge_status_t
1436 nxge_setup_mutexes(p_nxge_t nxgep)
1437 {
1438 	int ddi_status = DDI_SUCCESS;
1439 	nxge_status_t status = NXGE_OK;
1440 	nxge_classify_t *classify_ptr;
1441 	int partition;
1442 
1443 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_mutexes"));
1444 
1445 	/*
1446 	 * Get the interrupt cookie so the mutexes can be
1447 	 * Initialized.
1448 	 */
1449 	if (isLDOMguest(nxgep)) {
1450 		nxgep->interrupt_cookie = 0;
1451 	} else {
1452 		ddi_status = ddi_get_iblock_cookie(nxgep->dip, 0,
1453 		    &nxgep->interrupt_cookie);
1454 
1455 		if (ddi_status != DDI_SUCCESS) {
1456 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1457 			    "<== nxge_setup_mutexes: failed 0x%x",
1458 			    ddi_status));
1459 			goto nxge_setup_mutexes_exit;
1460 		}
1461 	}
1462 
1463 	cv_init(&nxgep->poll_cv, NULL, CV_DRIVER, NULL);
1464 	MUTEX_INIT(&nxgep->poll_lock, NULL,
1465 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1466 
1467 	/*
1468 	 * Initialize mutexes for this device.
1469 	 */
1470 	MUTEX_INIT(nxgep->genlock, NULL,
1471 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1472 	MUTEX_INIT(&nxgep->ouraddr_lock, NULL,
1473 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1474 	MUTEX_INIT(&nxgep->mif_lock, NULL,
1475 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1476 	MUTEX_INIT(&nxgep->group_lock, NULL,
1477 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1478 	RW_INIT(&nxgep->filter_lock, NULL,
1479 	    RW_DRIVER, (void *)nxgep->interrupt_cookie);
1480 
1481 	classify_ptr = &nxgep->classifier;
1482 		/*
1483 		 * FFLP Mutexes are never used in interrupt context
1484 		 * as fflp operation can take very long time to
1485 		 * complete and hence not suitable to invoke from interrupt
1486 		 * handlers.
1487 		 */
1488 	MUTEX_INIT(&classify_ptr->tcam_lock, NULL,
1489 	    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1490 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1491 		MUTEX_INIT(&classify_ptr->fcram_lock, NULL,
1492 		    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1493 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1494 			MUTEX_INIT(&classify_ptr->hash_lock[partition], NULL,
1495 			    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1496 		}
1497 	}
1498 
1499 nxge_setup_mutexes_exit:
1500 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1501 	    "<== nxge_setup_mutexes status = %x", status));
1502 
1503 	if (ddi_status != DDI_SUCCESS)
1504 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1505 
1506 	return (status);
1507 }
1508 
1509 static void
1510 nxge_destroy_mutexes(p_nxge_t nxgep)
1511 {
1512 	int partition;
1513 	nxge_classify_t *classify_ptr;
1514 
1515 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_mutexes"));
1516 	RW_DESTROY(&nxgep->filter_lock);
1517 	MUTEX_DESTROY(&nxgep->group_lock);
1518 	MUTEX_DESTROY(&nxgep->mif_lock);
1519 	MUTEX_DESTROY(&nxgep->ouraddr_lock);
1520 	MUTEX_DESTROY(nxgep->genlock);
1521 
1522 	classify_ptr = &nxgep->classifier;
1523 	MUTEX_DESTROY(&classify_ptr->tcam_lock);
1524 
1525 	/* Destroy all polling resources. */
1526 	MUTEX_DESTROY(&nxgep->poll_lock);
1527 	cv_destroy(&nxgep->poll_cv);
1528 
1529 	/* free data structures, based on HW type */
1530 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1531 		MUTEX_DESTROY(&classify_ptr->fcram_lock);
1532 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1533 			MUTEX_DESTROY(&classify_ptr->hash_lock[partition]);
1534 		}
1535 	}
1536 
1537 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_mutexes"));
1538 }
1539 
1540 nxge_status_t
1541 nxge_init(p_nxge_t nxgep)
1542 {
1543 	nxge_status_t status = NXGE_OK;
1544 
1545 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_init"));
1546 
1547 	if (nxgep->drv_state & STATE_HW_INITIALIZED) {
1548 		return (status);
1549 	}
1550 
1551 	/*
1552 	 * Allocate system memory for the receive/transmit buffer blocks
1553 	 * and receive/transmit descriptor rings.
1554 	 */
1555 	status = nxge_alloc_mem_pool(nxgep);
1556 	if (status != NXGE_OK) {
1557 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "alloc mem failed\n"));
1558 		goto nxge_init_fail1;
1559 	}
1560 
1561 	if (!isLDOMguest(nxgep)) {
1562 		/*
1563 		 * Initialize and enable the TXC registers.
1564 		 * (Globally enable the Tx controller,
1565 		 *  enable the port, configure the dma channel bitmap,
1566 		 *  configure the max burst size).
1567 		 */
1568 		status = nxge_txc_init(nxgep);
1569 		if (status != NXGE_OK) {
1570 			NXGE_ERROR_MSG((nxgep,
1571 			    NXGE_ERR_CTL, "init txc failed\n"));
1572 			goto nxge_init_fail2;
1573 		}
1574 	}
1575 
1576 	/*
1577 	 * Initialize and enable TXDMA channels.
1578 	 */
1579 	status = nxge_init_txdma_channels(nxgep);
1580 	if (status != NXGE_OK) {
1581 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init txdma failed\n"));
1582 		goto nxge_init_fail3;
1583 	}
1584 
1585 	/*
1586 	 * Initialize and enable RXDMA channels.
1587 	 */
1588 	status = nxge_init_rxdma_channels(nxgep);
1589 	if (status != NXGE_OK) {
1590 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init rxdma failed\n"));
1591 		goto nxge_init_fail4;
1592 	}
1593 
1594 	/*
1595 	 * The guest domain is now done.
1596 	 */
1597 	if (isLDOMguest(nxgep)) {
1598 		nxgep->drv_state |= STATE_HW_INITIALIZED;
1599 		goto nxge_init_exit;
1600 	}
1601 
1602 	/*
1603 	 * Initialize TCAM and FCRAM (Neptune).
1604 	 */
1605 	status = nxge_classify_init(nxgep);
1606 	if (status != NXGE_OK) {
1607 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init classify failed\n"));
1608 		goto nxge_init_fail5;
1609 	}
1610 
1611 	/*
1612 	 * Initialize ZCP
1613 	 */
1614 	status = nxge_zcp_init(nxgep);
1615 	if (status != NXGE_OK) {
1616 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init ZCP failed\n"));
1617 		goto nxge_init_fail5;
1618 	}
1619 
1620 	/*
1621 	 * Initialize IPP.
1622 	 */
1623 	status = nxge_ipp_init(nxgep);
1624 	if (status != NXGE_OK) {
1625 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init IPP failed\n"));
1626 		goto nxge_init_fail5;
1627 	}
1628 
1629 	/*
1630 	 * Initialize the MAC block.
1631 	 */
1632 	status = nxge_mac_init(nxgep);
1633 	if (status != NXGE_OK) {
1634 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init MAC failed\n"));
1635 		goto nxge_init_fail5;
1636 	}
1637 
1638 	nxge_intrs_enable(nxgep); /* XXX What changes do I need to make here? */
1639 
1640 	/*
1641 	 * Enable hardware interrupts.
1642 	 */
1643 	nxge_intr_hw_enable(nxgep);
1644 	nxgep->drv_state |= STATE_HW_INITIALIZED;
1645 
1646 	goto nxge_init_exit;
1647 
1648 nxge_init_fail5:
1649 	nxge_uninit_rxdma_channels(nxgep);
1650 nxge_init_fail4:
1651 	nxge_uninit_txdma_channels(nxgep);
1652 nxge_init_fail3:
1653 	if (!isLDOMguest(nxgep)) {
1654 		(void) nxge_txc_uninit(nxgep);
1655 	}
1656 nxge_init_fail2:
1657 	nxge_free_mem_pool(nxgep);
1658 nxge_init_fail1:
1659 	NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1660 	    "<== nxge_init status (failed) = 0x%08x", status));
1661 	return (status);
1662 
1663 nxge_init_exit:
1664 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_init status = 0x%08x",
1665 	    status));
1666 	return (status);
1667 }
1668 
1669 
1670 timeout_id_t
1671 nxge_start_timer(p_nxge_t nxgep, fptrv_t func, int msec)
1672 {
1673 	if ((nxgep->suspended == 0) || (nxgep->suspended == DDI_RESUME)) {
1674 		return (timeout(func, (caddr_t)nxgep,
1675 		    drv_usectohz(1000 * msec)));
1676 	}
1677 	return (NULL);
1678 }
1679 
1680 /*ARGSUSED*/
1681 void
1682 nxge_stop_timer(p_nxge_t nxgep, timeout_id_t timerid)
1683 {
1684 	if (timerid) {
1685 		(void) untimeout(timerid);
1686 	}
1687 }
1688 
1689 void
1690 nxge_uninit(p_nxge_t nxgep)
1691 {
1692 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_uninit"));
1693 
1694 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
1695 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1696 		    "==> nxge_uninit: not initialized"));
1697 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1698 		    "<== nxge_uninit"));
1699 		return;
1700 	}
1701 
1702 	/* stop timer */
1703 	if (nxgep->nxge_timerid) {
1704 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1705 		nxgep->nxge_timerid = 0;
1706 	}
1707 
1708 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
1709 	(void) nxge_intr_hw_disable(nxgep);
1710 
1711 	/*
1712 	 * Reset the receive MAC side.
1713 	 */
1714 	(void) nxge_rx_mac_disable(nxgep);
1715 
1716 	/* Disable and soft reset the IPP */
1717 	if (!isLDOMguest(nxgep))
1718 		(void) nxge_ipp_disable(nxgep);
1719 
1720 	/* Free classification resources */
1721 	(void) nxge_classify_uninit(nxgep);
1722 
1723 	/*
1724 	 * Reset the transmit/receive DMA side.
1725 	 */
1726 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
1727 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
1728 
1729 	nxge_uninit_txdma_channels(nxgep);
1730 	nxge_uninit_rxdma_channels(nxgep);
1731 
1732 	/*
1733 	 * Reset the transmit MAC side.
1734 	 */
1735 	(void) nxge_tx_mac_disable(nxgep);
1736 
1737 	nxge_free_mem_pool(nxgep);
1738 
1739 	/*
1740 	 * Start the timer if the reset flag is not set.
1741 	 * If this reset flag is set, the link monitor
1742 	 * will not be started in order to stop furthur bus
1743 	 * activities coming from this interface.
1744 	 * The driver will start the monitor function
1745 	 * if the interface was initialized again later.
1746 	 */
1747 	if (!nxge_peu_reset_enable) {
1748 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1749 	}
1750 
1751 	nxgep->drv_state &= ~STATE_HW_INITIALIZED;
1752 
1753 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_uninit: "
1754 	    "nxge_mblks_pending %d", nxge_mblks_pending));
1755 }
1756 
1757 void
1758 nxge_get64(p_nxge_t nxgep, p_mblk_t mp)
1759 {
1760 	uint64_t	reg;
1761 	uint64_t	regdata;
1762 	int		i, retry;
1763 
1764 	bcopy((char *)mp->b_rptr, (char *)&reg, sizeof (uint64_t));
1765 	regdata = 0;
1766 	retry = 1;
1767 
1768 	for (i = 0; i < retry; i++) {
1769 		NXGE_REG_RD64(nxgep->npi_handle, reg, &regdata);
1770 	}
1771 	bcopy((char *)&regdata, (char *)mp->b_rptr, sizeof (uint64_t));
1772 }
1773 
1774 void
1775 nxge_put64(p_nxge_t nxgep, p_mblk_t mp)
1776 {
1777 	uint64_t	reg;
1778 	uint64_t	buf[2];
1779 
1780 	bcopy((char *)mp->b_rptr, (char *)&buf[0], 2 * sizeof (uint64_t));
1781 	reg = buf[0];
1782 
1783 	NXGE_NPI_PIO_WRITE64(nxgep->npi_handle, reg, buf[1]);
1784 }
1785 
1786 
1787 nxge_os_mutex_t nxgedebuglock;
1788 int nxge_debug_init = 0;
1789 
1790 /*ARGSUSED*/
1791 /*VARARGS*/
1792 void
1793 nxge_debug_msg(p_nxge_t nxgep, uint64_t level, char *fmt, ...)
1794 {
1795 	char msg_buffer[1048];
1796 	char prefix_buffer[32];
1797 	int instance;
1798 	uint64_t debug_level;
1799 	int cmn_level = CE_CONT;
1800 	va_list ap;
1801 
1802 	if (nxgep && nxgep->nxge_debug_level != nxge_debug_level) {
1803 		/* In case a developer has changed nxge_debug_level. */
1804 		if (nxgep->nxge_debug_level != nxge_debug_level)
1805 			nxgep->nxge_debug_level = nxge_debug_level;
1806 	}
1807 
1808 	debug_level = (nxgep == NULL) ? nxge_debug_level :
1809 	    nxgep->nxge_debug_level;
1810 
1811 	if ((level & debug_level) ||
1812 	    (level == NXGE_NOTE) ||
1813 	    (level == NXGE_ERR_CTL)) {
1814 		/* do the msg processing */
1815 		if (nxge_debug_init == 0) {
1816 			MUTEX_INIT(&nxgedebuglock, NULL, MUTEX_DRIVER, NULL);
1817 			nxge_debug_init = 1;
1818 		}
1819 
1820 		MUTEX_ENTER(&nxgedebuglock);
1821 
1822 		if ((level & NXGE_NOTE)) {
1823 			cmn_level = CE_NOTE;
1824 		}
1825 
1826 		if (level & NXGE_ERR_CTL) {
1827 			cmn_level = CE_WARN;
1828 		}
1829 
1830 		va_start(ap, fmt);
1831 		(void) vsprintf(msg_buffer, fmt, ap);
1832 		va_end(ap);
1833 		if (nxgep == NULL) {
1834 			instance = -1;
1835 			(void) sprintf(prefix_buffer, "%s :", "nxge");
1836 		} else {
1837 			instance = nxgep->instance;
1838 			(void) sprintf(prefix_buffer,
1839 			    "%s%d :", "nxge", instance);
1840 		}
1841 
1842 		MUTEX_EXIT(&nxgedebuglock);
1843 		cmn_err(cmn_level, "!%s %s\n",
1844 		    prefix_buffer, msg_buffer);
1845 
1846 	}
1847 }
1848 
1849 char *
1850 nxge_dump_packet(char *addr, int size)
1851 {
1852 	uchar_t *ap = (uchar_t *)addr;
1853 	int i;
1854 	static char etherbuf[1024];
1855 	char *cp = etherbuf;
1856 	char digits[] = "0123456789abcdef";
1857 
1858 	if (!size)
1859 		size = 60;
1860 
1861 	if (size > MAX_DUMP_SZ) {
1862 		/* Dump the leading bytes */
1863 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1864 			if (*ap > 0x0f)
1865 				*cp++ = digits[*ap >> 4];
1866 			*cp++ = digits[*ap++ & 0xf];
1867 			*cp++ = ':';
1868 		}
1869 		for (i = 0; i < 20; i++)
1870 			*cp++ = '.';
1871 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1872 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ/2));
1873 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1874 			if (*ap > 0x0f)
1875 				*cp++ = digits[*ap >> 4];
1876 			*cp++ = digits[*ap++ & 0xf];
1877 			*cp++ = ':';
1878 		}
1879 	} else {
1880 		for (i = 0; i < size; i++) {
1881 			if (*ap > 0x0f)
1882 				*cp++ = digits[*ap >> 4];
1883 			*cp++ = digits[*ap++ & 0xf];
1884 			*cp++ = ':';
1885 		}
1886 	}
1887 	*--cp = 0;
1888 	return (etherbuf);
1889 }
1890 
1891 #ifdef	NXGE_DEBUG
1892 static void
1893 nxge_test_map_regs(p_nxge_t nxgep)
1894 {
1895 	ddi_acc_handle_t cfg_handle;
1896 	p_pci_cfg_t	cfg_ptr;
1897 	ddi_acc_handle_t dev_handle;
1898 	char		*dev_ptr;
1899 	ddi_acc_handle_t pci_config_handle;
1900 	uint32_t	regval;
1901 	int		i;
1902 
1903 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_test_map_regs"));
1904 
1905 	dev_handle = nxgep->dev_regs->nxge_regh;
1906 	dev_ptr = (char *)nxgep->dev_regs->nxge_regp;
1907 
1908 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1909 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1910 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1911 
1912 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1913 		    "Neptune PCI regp cfg_ptr 0x%llx", (char *)cfg_ptr));
1914 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1915 		    "Neptune PCI cfg_ptr vendor id ptr 0x%llx",
1916 		    &cfg_ptr->vendorid));
1917 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1918 		    "\tvendorid 0x%x devid 0x%x",
1919 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->vendorid, 0),
1920 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->devid,    0)));
1921 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1922 		    "PCI BAR: base 0x%x base14 0x%x base 18 0x%x "
1923 		    "bar1c 0x%x",
1924 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base,   0),
1925 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base14, 0),
1926 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base18, 0),
1927 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base1c, 0)));
1928 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1929 		    "\nNeptune PCI BAR: base20 0x%x base24 0x%x "
1930 		    "base 28 0x%x bar2c 0x%x\n",
1931 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base20, 0),
1932 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base24, 0),
1933 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base28, 0),
1934 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base2c, 0)));
1935 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1936 		    "\nNeptune PCI BAR: base30 0x%x\n",
1937 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base30, 0)));
1938 
1939 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1940 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1941 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1942 		    "first  0x%llx second 0x%llx third 0x%llx "
1943 		    "last 0x%llx ",
1944 		    NXGE_PIO_READ64(dev_handle,
1945 		    (uint64_t *)(dev_ptr + 0),  0),
1946 		    NXGE_PIO_READ64(dev_handle,
1947 		    (uint64_t *)(dev_ptr + 8),  0),
1948 		    NXGE_PIO_READ64(dev_handle,
1949 		    (uint64_t *)(dev_ptr + 16), 0),
1950 		    NXGE_PIO_READ64(cfg_handle,
1951 		    (uint64_t *)(dev_ptr + 24), 0)));
1952 	}
1953 }
1954 
1955 #endif
1956 
1957 static void
1958 nxge_suspend(p_nxge_t nxgep)
1959 {
1960 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_suspend"));
1961 
1962 	nxge_intrs_disable(nxgep);
1963 	nxge_destroy_dev(nxgep);
1964 
1965 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_suspend"));
1966 }
1967 
1968 static nxge_status_t
1969 nxge_resume(p_nxge_t nxgep)
1970 {
1971 	nxge_status_t status = NXGE_OK;
1972 
1973 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_resume"));
1974 
1975 	nxgep->suspended = DDI_RESUME;
1976 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1977 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_START);
1978 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_START);
1979 	(void) nxge_rx_mac_enable(nxgep);
1980 	(void) nxge_tx_mac_enable(nxgep);
1981 	nxge_intrs_enable(nxgep);
1982 	nxgep->suspended = 0;
1983 
1984 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1985 	    "<== nxge_resume status = 0x%x", status));
1986 	return (status);
1987 }
1988 
1989 static nxge_status_t
1990 nxge_setup_dev(p_nxge_t nxgep)
1991 {
1992 	nxge_status_t	status = NXGE_OK;
1993 
1994 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_dev port %d",
1995 	    nxgep->mac.portnum));
1996 
1997 	status = nxge_link_init(nxgep);
1998 
1999 	if (fm_check_acc_handle(nxgep->dev_regs->nxge_regh) != DDI_FM_OK) {
2000 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2001 		    "port%d Bad register acc handle", nxgep->mac.portnum));
2002 		status = NXGE_ERROR;
2003 	}
2004 
2005 	if (status != NXGE_OK) {
2006 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2007 		    " nxge_setup_dev status "
2008 		    "(xcvr init 0x%08x)", status));
2009 		goto nxge_setup_dev_exit;
2010 	}
2011 
2012 nxge_setup_dev_exit:
2013 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2014 	    "<== nxge_setup_dev port %d status = 0x%08x",
2015 	    nxgep->mac.portnum, status));
2016 
2017 	return (status);
2018 }
2019 
2020 static void
2021 nxge_destroy_dev(p_nxge_t nxgep)
2022 {
2023 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_dev"));
2024 
2025 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
2026 
2027 	(void) nxge_hw_stop(nxgep);
2028 
2029 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_dev"));
2030 }
2031 
2032 static nxge_status_t
2033 nxge_setup_system_dma_pages(p_nxge_t nxgep)
2034 {
2035 	int 			ddi_status = DDI_SUCCESS;
2036 	uint_t 			count;
2037 	ddi_dma_cookie_t 	cookie;
2038 	uint_t 			iommu_pagesize;
2039 	nxge_status_t		status = NXGE_OK;
2040 
2041 	NXGE_ERROR_MSG((nxgep, DDI_CTL, "==> nxge_setup_system_dma_pages"));
2042 	nxgep->sys_page_sz = ddi_ptob(nxgep->dip, (ulong_t)1);
2043 	if (nxgep->niu_type != N2_NIU) {
2044 		iommu_pagesize = dvma_pagesize(nxgep->dip);
2045 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2046 		    " nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2047 		    " default_block_size %d iommu_pagesize %d",
2048 		    nxgep->sys_page_sz,
2049 		    ddi_ptob(nxgep->dip, (ulong_t)1),
2050 		    nxgep->rx_default_block_size,
2051 		    iommu_pagesize));
2052 
2053 		if (iommu_pagesize != 0) {
2054 			if (nxgep->sys_page_sz == iommu_pagesize) {
2055 				if (iommu_pagesize > 0x4000)
2056 					nxgep->sys_page_sz = 0x4000;
2057 			} else {
2058 				if (nxgep->sys_page_sz > iommu_pagesize)
2059 					nxgep->sys_page_sz = iommu_pagesize;
2060 			}
2061 		}
2062 	}
2063 	nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2064 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2065 	    "==> nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2066 	    "default_block_size %d page mask %d",
2067 	    nxgep->sys_page_sz,
2068 	    ddi_ptob(nxgep->dip, (ulong_t)1),
2069 	    nxgep->rx_default_block_size,
2070 	    nxgep->sys_page_mask));
2071 
2072 
2073 	switch (nxgep->sys_page_sz) {
2074 	default:
2075 		nxgep->sys_page_sz = 0x1000;
2076 		nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2077 		nxgep->rx_default_block_size = 0x1000;
2078 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2079 		break;
2080 	case 0x1000:
2081 		nxgep->rx_default_block_size = 0x1000;
2082 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2083 		break;
2084 	case 0x2000:
2085 		nxgep->rx_default_block_size = 0x2000;
2086 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2087 		break;
2088 	case 0x4000:
2089 		nxgep->rx_default_block_size = 0x4000;
2090 		nxgep->rx_bksize_code = RBR_BKSIZE_16K;
2091 		break;
2092 	case 0x8000:
2093 		nxgep->rx_default_block_size = 0x8000;
2094 		nxgep->rx_bksize_code = RBR_BKSIZE_32K;
2095 		break;
2096 	}
2097 
2098 #ifndef USE_RX_BIG_BUF
2099 	nxge_rx_dma_attr.dma_attr_align = nxgep->sys_page_sz;
2100 #else
2101 		nxgep->rx_default_block_size = 0x2000;
2102 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2103 #endif
2104 	/*
2105 	 * Get the system DMA burst size.
2106 	 */
2107 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, &nxge_tx_dma_attr,
2108 	    DDI_DMA_DONTWAIT, 0,
2109 	    &nxgep->dmasparehandle);
2110 	if (ddi_status != DDI_SUCCESS) {
2111 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2112 		    "ddi_dma_alloc_handle: failed "
2113 		    " status 0x%x", ddi_status));
2114 		goto nxge_get_soft_properties_exit;
2115 	}
2116 
2117 	ddi_status = ddi_dma_addr_bind_handle(nxgep->dmasparehandle, NULL,
2118 	    (caddr_t)nxgep->dmasparehandle,
2119 	    sizeof (nxgep->dmasparehandle),
2120 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2121 	    DDI_DMA_DONTWAIT, 0,
2122 	    &cookie, &count);
2123 	if (ddi_status != DDI_DMA_MAPPED) {
2124 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2125 		    "Binding spare handle to find system"
2126 		    " burstsize failed."));
2127 		ddi_status = DDI_FAILURE;
2128 		goto nxge_get_soft_properties_fail1;
2129 	}
2130 
2131 	nxgep->sys_burst_sz = ddi_dma_burstsizes(nxgep->dmasparehandle);
2132 	(void) ddi_dma_unbind_handle(nxgep->dmasparehandle);
2133 
2134 nxge_get_soft_properties_fail1:
2135 	ddi_dma_free_handle(&nxgep->dmasparehandle);
2136 
2137 nxge_get_soft_properties_exit:
2138 
2139 	if (ddi_status != DDI_SUCCESS)
2140 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2141 
2142 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2143 	    "<== nxge_setup_system_dma_pages status = 0x%08x", status));
2144 	return (status);
2145 }
2146 
2147 static nxge_status_t
2148 nxge_alloc_mem_pool(p_nxge_t nxgep)
2149 {
2150 	nxge_status_t	status = NXGE_OK;
2151 
2152 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_alloc_mem_pool"));
2153 
2154 	status = nxge_alloc_rx_mem_pool(nxgep);
2155 	if (status != NXGE_OK) {
2156 		return (NXGE_ERROR);
2157 	}
2158 
2159 	status = nxge_alloc_tx_mem_pool(nxgep);
2160 	if (status != NXGE_OK) {
2161 		nxge_free_rx_mem_pool(nxgep);
2162 		return (NXGE_ERROR);
2163 	}
2164 
2165 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_alloc_mem_pool"));
2166 	return (NXGE_OK);
2167 }
2168 
2169 static void
2170 nxge_free_mem_pool(p_nxge_t nxgep)
2171 {
2172 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_mem_pool"));
2173 
2174 	nxge_free_rx_mem_pool(nxgep);
2175 	nxge_free_tx_mem_pool(nxgep);
2176 
2177 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_mem_pool"));
2178 }
2179 
2180 nxge_status_t
2181 nxge_alloc_rx_mem_pool(p_nxge_t nxgep)
2182 {
2183 	uint32_t		rdc_max;
2184 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
2185 	p_nxge_hw_pt_cfg_t	p_cfgp;
2186 	p_nxge_dma_pool_t	dma_poolp;
2187 	p_nxge_dma_common_t	*dma_buf_p;
2188 	p_nxge_dma_pool_t	dma_cntl_poolp;
2189 	p_nxge_dma_common_t	*dma_cntl_p;
2190 	uint32_t 		*num_chunks; /* per dma */
2191 	nxge_status_t		status = NXGE_OK;
2192 
2193 	uint32_t		nxge_port_rbr_size;
2194 	uint32_t		nxge_port_rbr_spare_size;
2195 	uint32_t		nxge_port_rcr_size;
2196 	uint32_t		rx_cntl_alloc_size;
2197 
2198 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_mem_pool"));
2199 
2200 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
2201 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
2202 	rdc_max = NXGE_MAX_RDCS;
2203 
2204 	/*
2205 	 * Allocate memory for the common DMA data structures.
2206 	 */
2207 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2208 	    KM_SLEEP);
2209 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2210 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2211 
2212 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2213 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2214 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2215 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2216 
2217 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2218 	    sizeof (uint32_t) * rdc_max, KM_SLEEP);
2219 
2220 	/*
2221 	 * Assume that each DMA channel will be configured with
2222 	 * the default block size.
2223 	 * rbr block counts are modulo the batch count (16).
2224 	 */
2225 	nxge_port_rbr_size = p_all_cfgp->rbr_size;
2226 	nxge_port_rcr_size = p_all_cfgp->rcr_size;
2227 
2228 	if (!nxge_port_rbr_size) {
2229 		nxge_port_rbr_size = NXGE_RBR_RBB_DEFAULT;
2230 	}
2231 	if (nxge_port_rbr_size % NXGE_RXDMA_POST_BATCH) {
2232 		nxge_port_rbr_size = (NXGE_RXDMA_POST_BATCH *
2233 		    (nxge_port_rbr_size / NXGE_RXDMA_POST_BATCH + 1));
2234 	}
2235 
2236 	p_all_cfgp->rbr_size = nxge_port_rbr_size;
2237 	nxge_port_rbr_spare_size = nxge_rbr_spare_size;
2238 
2239 	if (nxge_port_rbr_spare_size % NXGE_RXDMA_POST_BATCH) {
2240 		nxge_port_rbr_spare_size = (NXGE_RXDMA_POST_BATCH *
2241 		    (nxge_port_rbr_spare_size / NXGE_RXDMA_POST_BATCH + 1));
2242 	}
2243 	if (nxge_port_rbr_size > RBR_DEFAULT_MAX_BLKS) {
2244 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2245 		    "nxge_alloc_rx_mem_pool: RBR size too high %d, "
2246 		    "set to default %d",
2247 		    nxge_port_rbr_size, RBR_DEFAULT_MAX_BLKS));
2248 		nxge_port_rbr_size = RBR_DEFAULT_MAX_BLKS;
2249 	}
2250 	if (nxge_port_rcr_size > RCR_DEFAULT_MAX) {
2251 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2252 		    "nxge_alloc_rx_mem_pool: RCR too high %d, "
2253 		    "set to default %d",
2254 		    nxge_port_rcr_size, RCR_DEFAULT_MAX));
2255 		nxge_port_rcr_size = RCR_DEFAULT_MAX;
2256 	}
2257 
2258 	/*
2259 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2260 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2261 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2262 	 * function).
2263 	 */
2264 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2265 	if (nxgep->niu_type == N2_NIU) {
2266 		nxge_port_rbr_spare_size = 0;
2267 		if ((nxge_port_rbr_size > NXGE_NIU_CONTIG_RBR_MAX) ||
2268 		    (!ISP2(nxge_port_rbr_size))) {
2269 			nxge_port_rbr_size = NXGE_NIU_CONTIG_RBR_MAX;
2270 		}
2271 		if ((nxge_port_rcr_size > NXGE_NIU_CONTIG_RCR_MAX) ||
2272 		    (!ISP2(nxge_port_rcr_size))) {
2273 			nxge_port_rcr_size = NXGE_NIU_CONTIG_RCR_MAX;
2274 		}
2275 	}
2276 #endif
2277 
2278 	/*
2279 	 * Addresses of receive block ring, receive completion ring and the
2280 	 * mailbox must be all cache-aligned (64 bytes).
2281 	 */
2282 	rx_cntl_alloc_size = nxge_port_rbr_size + nxge_port_rbr_spare_size;
2283 	rx_cntl_alloc_size *= (sizeof (rx_desc_t));
2284 	rx_cntl_alloc_size += (sizeof (rcr_entry_t) * nxge_port_rcr_size);
2285 	rx_cntl_alloc_size += sizeof (rxdma_mailbox_t);
2286 
2287 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_alloc_rx_mem_pool: "
2288 	    "nxge_port_rbr_size = %d nxge_port_rbr_spare_size = %d "
2289 	    "nxge_port_rcr_size = %d "
2290 	    "rx_cntl_alloc_size = %d",
2291 	    nxge_port_rbr_size, nxge_port_rbr_spare_size,
2292 	    nxge_port_rcr_size,
2293 	    rx_cntl_alloc_size));
2294 
2295 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2296 	if (nxgep->niu_type == N2_NIU) {
2297 		uint32_t rx_buf_alloc_size = (nxgep->rx_default_block_size *
2298 		    (nxge_port_rbr_size + nxge_port_rbr_spare_size));
2299 
2300 		if (!ISP2(rx_buf_alloc_size)) {
2301 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2302 			    "==> nxge_alloc_rx_mem_pool: "
2303 			    " must be power of 2"));
2304 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2305 			goto nxge_alloc_rx_mem_pool_exit;
2306 		}
2307 
2308 		if (rx_buf_alloc_size > (1 << 22)) {
2309 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2310 			    "==> nxge_alloc_rx_mem_pool: "
2311 			    " limit size to 4M"));
2312 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2313 			goto nxge_alloc_rx_mem_pool_exit;
2314 		}
2315 
2316 		if (rx_cntl_alloc_size < 0x2000) {
2317 			rx_cntl_alloc_size = 0x2000;
2318 		}
2319 	}
2320 #endif
2321 	nxgep->nxge_port_rbr_size = nxge_port_rbr_size;
2322 	nxgep->nxge_port_rcr_size = nxge_port_rcr_size;
2323 	nxgep->nxge_port_rbr_spare_size = nxge_port_rbr_spare_size;
2324 	nxgep->nxge_port_rx_cntl_alloc_size = rx_cntl_alloc_size;
2325 
2326 	dma_poolp->ndmas = p_cfgp->max_rdcs;
2327 	dma_poolp->num_chunks = num_chunks;
2328 	dma_poolp->buf_allocated = B_TRUE;
2329 	nxgep->rx_buf_pool_p = dma_poolp;
2330 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2331 
2332 	dma_cntl_poolp->ndmas = p_cfgp->max_rdcs;
2333 	dma_cntl_poolp->buf_allocated = B_TRUE;
2334 	nxgep->rx_cntl_pool_p = dma_cntl_poolp;
2335 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2336 
2337 	/* Allocate the receive rings, too. */
2338 	nxgep->rx_rbr_rings =
2339 	    KMEM_ZALLOC(sizeof (rx_rbr_rings_t), KM_SLEEP);
2340 	nxgep->rx_rbr_rings->rbr_rings =
2341 	    KMEM_ZALLOC(sizeof (p_rx_rbr_ring_t) * rdc_max, KM_SLEEP);
2342 	nxgep->rx_rcr_rings =
2343 	    KMEM_ZALLOC(sizeof (rx_rcr_rings_t), KM_SLEEP);
2344 	nxgep->rx_rcr_rings->rcr_rings =
2345 	    KMEM_ZALLOC(sizeof (p_rx_rcr_ring_t) * rdc_max, KM_SLEEP);
2346 	nxgep->rx_mbox_areas_p =
2347 	    KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
2348 	nxgep->rx_mbox_areas_p->rxmbox_areas =
2349 	    KMEM_ZALLOC(sizeof (p_rx_mbox_t) * rdc_max, KM_SLEEP);
2350 
2351 	nxgep->rx_rbr_rings->ndmas = nxgep->rx_rcr_rings->ndmas =
2352 	    p_cfgp->max_rdcs;
2353 
2354 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2355 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2356 
2357 nxge_alloc_rx_mem_pool_exit:
2358 	return (status);
2359 }
2360 
2361 /*
2362  * nxge_alloc_rxb
2363  *
2364  *	Allocate buffers for an RDC.
2365  *
2366  * Arguments:
2367  * 	nxgep
2368  * 	channel	The channel to map into our kernel space.
2369  *
2370  * Notes:
2371  *
2372  * NPI function calls:
2373  *
2374  * NXGE function calls:
2375  *
2376  * Registers accessed:
2377  *
2378  * Context:
2379  *
2380  * Taking apart:
2381  *
2382  * Open questions:
2383  *
2384  */
2385 nxge_status_t
2386 nxge_alloc_rxb(
2387 	p_nxge_t nxgep,
2388 	int channel)
2389 {
2390 	size_t			rx_buf_alloc_size;
2391 	nxge_status_t		status = NXGE_OK;
2392 
2393 	nxge_dma_common_t	**data;
2394 	nxge_dma_common_t	**control;
2395 	uint32_t 		*num_chunks;
2396 
2397 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2398 
2399 	/*
2400 	 * Allocate memory for the receive buffers and descriptor rings.
2401 	 * Replace these allocation functions with the interface functions
2402 	 * provided by the partition manager if/when they are available.
2403 	 */
2404 
2405 	/*
2406 	 * Allocate memory for the receive buffer blocks.
2407 	 */
2408 	rx_buf_alloc_size = (nxgep->rx_default_block_size *
2409 	    (nxgep->nxge_port_rbr_size + nxgep->nxge_port_rbr_spare_size));
2410 
2411 	data = &nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2412 	num_chunks = &nxgep->rx_buf_pool_p->num_chunks[channel];
2413 
2414 	if ((status = nxge_alloc_rx_buf_dma(
2415 	    nxgep, channel, data, rx_buf_alloc_size,
2416 	    nxgep->rx_default_block_size, num_chunks)) != NXGE_OK) {
2417 		return (status);
2418 	}
2419 
2420 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_alloc_rxb(): "
2421 	    "dma %d dma_buf_p %llx &dma_buf_p %llx", channel, *data, data));
2422 
2423 	/*
2424 	 * Allocate memory for descriptor rings and mailbox.
2425 	 */
2426 	control = &nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2427 
2428 	if ((status = nxge_alloc_rx_cntl_dma(
2429 	    nxgep, channel, control, nxgep->nxge_port_rx_cntl_alloc_size))
2430 	    != NXGE_OK) {
2431 		nxge_free_rx_cntl_dma(nxgep, *control);
2432 		(*data)->buf_alloc_state |= BUF_ALLOCATED_WAIT_FREE;
2433 		nxge_free_rx_buf_dma(nxgep, *data, *num_chunks);
2434 		return (status);
2435 	}
2436 
2437 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2438 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2439 
2440 	return (status);
2441 }
2442 
2443 void
2444 nxge_free_rxb(
2445 	p_nxge_t nxgep,
2446 	int channel)
2447 {
2448 	nxge_dma_common_t	*data;
2449 	nxge_dma_common_t	*control;
2450 	uint32_t 		num_chunks;
2451 
2452 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2453 
2454 	data = nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2455 	num_chunks = nxgep->rx_buf_pool_p->num_chunks[channel];
2456 	nxge_free_rx_buf_dma(nxgep, data, num_chunks);
2457 
2458 	nxgep->rx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2459 	nxgep->rx_buf_pool_p->num_chunks[channel] = 0;
2460 
2461 	control = nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2462 	nxge_free_rx_cntl_dma(nxgep, control);
2463 
2464 	nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2465 
2466 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2467 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2468 
2469 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_alloc_rbb"));
2470 }
2471 
2472 static void
2473 nxge_free_rx_mem_pool(p_nxge_t nxgep)
2474 {
2475 	int rdc_max = NXGE_MAX_RDCS;
2476 
2477 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_mem_pool"));
2478 
2479 	if (!nxgep->rx_buf_pool_p || !nxgep->rx_buf_pool_p->buf_allocated) {
2480 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2481 		    "<== nxge_free_rx_mem_pool "
2482 		    "(null rx buf pool or buf not allocated"));
2483 		return;
2484 	}
2485 	if (!nxgep->rx_cntl_pool_p || !nxgep->rx_cntl_pool_p->buf_allocated) {
2486 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2487 		    "<== nxge_free_rx_mem_pool "
2488 		    "(null rx cntl buf pool or cntl buf not allocated"));
2489 		return;
2490 	}
2491 
2492 	KMEM_FREE(nxgep->rx_cntl_pool_p->dma_buf_pool_p,
2493 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2494 	KMEM_FREE(nxgep->rx_cntl_pool_p, sizeof (nxge_dma_pool_t));
2495 
2496 	KMEM_FREE(nxgep->rx_buf_pool_p->num_chunks,
2497 	    sizeof (uint32_t) * rdc_max);
2498 	KMEM_FREE(nxgep->rx_buf_pool_p->dma_buf_pool_p,
2499 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2500 	KMEM_FREE(nxgep->rx_buf_pool_p, sizeof (nxge_dma_pool_t));
2501 
2502 	nxgep->rx_buf_pool_p = 0;
2503 	nxgep->rx_cntl_pool_p = 0;
2504 
2505 	KMEM_FREE(nxgep->rx_rbr_rings->rbr_rings,
2506 	    sizeof (p_rx_rbr_ring_t) * rdc_max);
2507 	KMEM_FREE(nxgep->rx_rbr_rings, sizeof (rx_rbr_rings_t));
2508 	KMEM_FREE(nxgep->rx_rcr_rings->rcr_rings,
2509 	    sizeof (p_rx_rcr_ring_t) * rdc_max);
2510 	KMEM_FREE(nxgep->rx_rcr_rings, sizeof (rx_rcr_rings_t));
2511 	KMEM_FREE(nxgep->rx_mbox_areas_p->rxmbox_areas,
2512 	    sizeof (p_rx_mbox_t) * rdc_max);
2513 	KMEM_FREE(nxgep->rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
2514 
2515 	nxgep->rx_rbr_rings = 0;
2516 	nxgep->rx_rcr_rings = 0;
2517 	nxgep->rx_mbox_areas_p = 0;
2518 
2519 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_rx_mem_pool"));
2520 }
2521 
2522 
2523 static nxge_status_t
2524 nxge_alloc_rx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2525 	p_nxge_dma_common_t *dmap,
2526 	size_t alloc_size, size_t block_size, uint32_t *num_chunks)
2527 {
2528 	p_nxge_dma_common_t 	rx_dmap;
2529 	nxge_status_t		status = NXGE_OK;
2530 	size_t			total_alloc_size;
2531 	size_t			allocated = 0;
2532 	int			i, size_index, array_size;
2533 	boolean_t		use_kmem_alloc = B_FALSE;
2534 
2535 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_buf_dma"));
2536 
2537 	rx_dmap = (p_nxge_dma_common_t)
2538 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2539 	    KM_SLEEP);
2540 
2541 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2542 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
2543 	    dma_channel, alloc_size, block_size, dmap));
2544 
2545 	total_alloc_size = alloc_size;
2546 
2547 #if defined(RX_USE_RECLAIM_POST)
2548 	total_alloc_size = alloc_size + alloc_size/4;
2549 #endif
2550 
2551 	i = 0;
2552 	size_index = 0;
2553 	array_size =  sizeof (alloc_sizes)/sizeof (size_t);
2554 	while ((size_index < array_size) &&
2555 	    (alloc_sizes[size_index] < alloc_size))
2556 		size_index++;
2557 	if (size_index >= array_size) {
2558 		size_index = array_size - 1;
2559 	}
2560 
2561 	/* For Neptune, use kmem_alloc if the kmem flag is set. */
2562 	if (nxgep->niu_type != N2_NIU && nxge_use_kmem_alloc) {
2563 		use_kmem_alloc = B_TRUE;
2564 #if defined(__i386) || defined(__amd64)
2565 		size_index = 0;
2566 #endif
2567 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2568 		    "==> nxge_alloc_rx_buf_dma: "
2569 		    "Neptune use kmem_alloc() - size_index %d",
2570 		    size_index));
2571 	}
2572 
2573 	while ((allocated < total_alloc_size) &&
2574 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2575 		rx_dmap[i].dma_chunk_index = i;
2576 		rx_dmap[i].block_size = block_size;
2577 		rx_dmap[i].alength = alloc_sizes[size_index];
2578 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
2579 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2580 		rx_dmap[i].dma_channel = dma_channel;
2581 		rx_dmap[i].contig_alloc_type = B_FALSE;
2582 		rx_dmap[i].kmem_alloc_type = B_FALSE;
2583 		rx_dmap[i].buf_alloc_type = DDI_MEM_ALLOC;
2584 
2585 		/*
2586 		 * N2/NIU: data buffers must be contiguous as the driver
2587 		 *	   needs to call Hypervisor api to set up
2588 		 *	   logical pages.
2589 		 */
2590 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2591 			rx_dmap[i].contig_alloc_type = B_TRUE;
2592 			rx_dmap[i].buf_alloc_type = CONTIG_MEM_ALLOC;
2593 		} else if (use_kmem_alloc) {
2594 			/* For Neptune, use kmem_alloc */
2595 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2596 			    "==> nxge_alloc_rx_buf_dma: "
2597 			    "Neptune use kmem_alloc()"));
2598 			rx_dmap[i].kmem_alloc_type = B_TRUE;
2599 			rx_dmap[i].buf_alloc_type = KMEM_ALLOC;
2600 		}
2601 
2602 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2603 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
2604 		    "i %d nblocks %d alength %d",
2605 		    dma_channel, i, &rx_dmap[i], block_size,
2606 		    i, rx_dmap[i].nblocks,
2607 		    rx_dmap[i].alength));
2608 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2609 		    &nxge_rx_dma_attr,
2610 		    rx_dmap[i].alength,
2611 		    &nxge_dev_buf_dma_acc_attr,
2612 		    DDI_DMA_READ | DDI_DMA_STREAMING,
2613 		    (p_nxge_dma_common_t)(&rx_dmap[i]));
2614 		if (status != NXGE_OK) {
2615 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2616 			    "nxge_alloc_rx_buf_dma: Alloc Failed: "
2617 			    "dma %d size_index %d size requested %d",
2618 			    dma_channel,
2619 			    size_index,
2620 			    rx_dmap[i].alength));
2621 			size_index--;
2622 		} else {
2623 			rx_dmap[i].buf_alloc_state = BUF_ALLOCATED;
2624 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2625 			    " nxge_alloc_rx_buf_dma DONE  alloc mem: "
2626 			    "dma %d dma_buf_p $%p kaddrp $%p alength %d "
2627 			    "buf_alloc_state %d alloc_type %d",
2628 			    dma_channel,
2629 			    &rx_dmap[i],
2630 			    rx_dmap[i].kaddrp,
2631 			    rx_dmap[i].alength,
2632 			    rx_dmap[i].buf_alloc_state,
2633 			    rx_dmap[i].buf_alloc_type));
2634 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2635 			    " alloc_rx_buf_dma allocated rdc %d "
2636 			    "chunk %d size %x dvma %x bufp %llx kaddrp $%p",
2637 			    dma_channel, i, rx_dmap[i].alength,
2638 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i],
2639 			    rx_dmap[i].kaddrp));
2640 			i++;
2641 			allocated += alloc_sizes[size_index];
2642 		}
2643 	}
2644 
2645 	if (allocated < total_alloc_size) {
2646 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2647 		    "==> nxge_alloc_rx_buf_dma: not enough for channel %d "
2648 		    "allocated 0x%x requested 0x%x",
2649 		    dma_channel,
2650 		    allocated, total_alloc_size));
2651 		status = NXGE_ERROR;
2652 		goto nxge_alloc_rx_mem_fail1;
2653 	}
2654 
2655 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2656 	    "==> nxge_alloc_rx_buf_dma: Allocated for channel %d "
2657 	    "allocated 0x%x requested 0x%x",
2658 	    dma_channel,
2659 	    allocated, total_alloc_size));
2660 
2661 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2662 	    " alloc_rx_buf_dma rdc %d allocated %d chunks",
2663 	    dma_channel, i));
2664 	*num_chunks = i;
2665 	*dmap = rx_dmap;
2666 
2667 	goto nxge_alloc_rx_mem_exit;
2668 
2669 nxge_alloc_rx_mem_fail1:
2670 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2671 
2672 nxge_alloc_rx_mem_exit:
2673 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2674 	    "<== nxge_alloc_rx_buf_dma status 0x%08x", status));
2675 
2676 	return (status);
2677 }
2678 
2679 /*ARGSUSED*/
2680 static void
2681 nxge_free_rx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2682     uint32_t num_chunks)
2683 {
2684 	int		i;
2685 
2686 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2687 	    "==> nxge_free_rx_buf_dma: # of chunks %d", num_chunks));
2688 
2689 	if (dmap == 0)
2690 		return;
2691 
2692 	for (i = 0; i < num_chunks; i++) {
2693 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2694 		    "==> nxge_free_rx_buf_dma: chunk %d dmap 0x%llx",
2695 		    i, dmap));
2696 		nxge_dma_free_rx_data_buf(dmap++);
2697 	}
2698 
2699 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_buf_dma"));
2700 }
2701 
2702 /*ARGSUSED*/
2703 static nxge_status_t
2704 nxge_alloc_rx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2705     p_nxge_dma_common_t *dmap, size_t size)
2706 {
2707 	p_nxge_dma_common_t 	rx_dmap;
2708 	nxge_status_t		status = NXGE_OK;
2709 
2710 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_cntl_dma"));
2711 
2712 	rx_dmap = (p_nxge_dma_common_t)
2713 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2714 
2715 	rx_dmap->contig_alloc_type = B_FALSE;
2716 	rx_dmap->kmem_alloc_type = B_FALSE;
2717 
2718 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2719 	    &nxge_desc_dma_attr,
2720 	    size,
2721 	    &nxge_dev_desc_dma_acc_attr,
2722 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2723 	    rx_dmap);
2724 	if (status != NXGE_OK) {
2725 		goto nxge_alloc_rx_cntl_dma_fail1;
2726 	}
2727 
2728 	*dmap = rx_dmap;
2729 	goto nxge_alloc_rx_cntl_dma_exit;
2730 
2731 nxge_alloc_rx_cntl_dma_fail1:
2732 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t));
2733 
2734 nxge_alloc_rx_cntl_dma_exit:
2735 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2736 	    "<== nxge_alloc_rx_cntl_dma status 0x%08x", status));
2737 
2738 	return (status);
2739 }
2740 
2741 /*ARGSUSED*/
2742 static void
2743 nxge_free_rx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2744 {
2745 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_rx_cntl_dma"));
2746 
2747 	if (dmap == 0)
2748 		return;
2749 
2750 	nxge_dma_mem_free(dmap);
2751 
2752 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_rx_cntl_dma"));
2753 }
2754 
2755 typedef struct {
2756 	size_t	tx_size;
2757 	size_t	cr_size;
2758 	size_t	threshhold;
2759 } nxge_tdc_sizes_t;
2760 
2761 static
2762 nxge_status_t
2763 nxge_tdc_sizes(
2764 	nxge_t *nxgep,
2765 	nxge_tdc_sizes_t *sizes)
2766 {
2767 	uint32_t threshhold;	/* The bcopy() threshhold */
2768 	size_t tx_size;		/* Transmit buffer size */
2769 	size_t cr_size;		/* Completion ring size */
2770 
2771 	/*
2772 	 * Assume that each DMA channel will be configured with the
2773 	 * default transmit buffer size for copying transmit data.
2774 	 * (If a packet is bigger than this, it will not be copied.)
2775 	 */
2776 	if (nxgep->niu_type == N2_NIU) {
2777 		threshhold = TX_BCOPY_SIZE;
2778 	} else {
2779 		threshhold = nxge_bcopy_thresh;
2780 	}
2781 	tx_size = nxge_tx_ring_size * threshhold;
2782 
2783 	cr_size = nxge_tx_ring_size * sizeof (tx_desc_t);
2784 	cr_size += sizeof (txdma_mailbox_t);
2785 
2786 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2787 	if (nxgep->niu_type == N2_NIU) {
2788 		if (!ISP2(tx_size)) {
2789 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2790 			    "==> nxge_tdc_sizes: Tx size"
2791 			    " must be power of 2"));
2792 			return (NXGE_ERROR);
2793 		}
2794 
2795 		if (tx_size > (1 << 22)) {
2796 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2797 			    "==> nxge_tdc_sizes: Tx size"
2798 			    " limited to 4M"));
2799 			return (NXGE_ERROR);
2800 		}
2801 
2802 		if (cr_size < 0x2000)
2803 			cr_size = 0x2000;
2804 	}
2805 #endif
2806 
2807 	sizes->threshhold = threshhold;
2808 	sizes->tx_size = tx_size;
2809 	sizes->cr_size = cr_size;
2810 
2811 	return (NXGE_OK);
2812 }
2813 /*
2814  * nxge_alloc_txb
2815  *
2816  *	Allocate buffers for an TDC.
2817  *
2818  * Arguments:
2819  * 	nxgep
2820  * 	channel	The channel to map into our kernel space.
2821  *
2822  * Notes:
2823  *
2824  * NPI function calls:
2825  *
2826  * NXGE function calls:
2827  *
2828  * Registers accessed:
2829  *
2830  * Context:
2831  *
2832  * Taking apart:
2833  *
2834  * Open questions:
2835  *
2836  */
2837 nxge_status_t
2838 nxge_alloc_txb(
2839 	p_nxge_t nxgep,
2840 	int channel)
2841 {
2842 	nxge_dma_common_t	**dma_buf_p;
2843 	nxge_dma_common_t	**dma_cntl_p;
2844 	uint32_t 		*num_chunks;
2845 	nxge_status_t		status = NXGE_OK;
2846 
2847 	nxge_tdc_sizes_t	sizes;
2848 
2849 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tbb"));
2850 
2851 	if (nxge_tdc_sizes(nxgep, &sizes) != NXGE_OK)
2852 		return (NXGE_ERROR);
2853 
2854 	/*
2855 	 * Allocate memory for transmit buffers and descriptor rings.
2856 	 * Replace these allocation functions with the interface functions
2857 	 * provided by the partition manager Real Soon Now.
2858 	 */
2859 	dma_buf_p = &nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2860 	num_chunks = &nxgep->tx_buf_pool_p->num_chunks[channel];
2861 
2862 	dma_cntl_p = &nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2863 
2864 	/*
2865 	 * Allocate memory for transmit buffers and descriptor rings.
2866 	 * Replace allocation functions with interface functions provided
2867 	 * by the partition manager when it is available.
2868 	 *
2869 	 * Allocate memory for the transmit buffer pool.
2870 	 */
2871 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2872 	    "sizes: tx: %ld, cr:%ld, th:%ld",
2873 	    sizes.tx_size, sizes.cr_size, sizes.threshhold));
2874 
2875 	*num_chunks = 0;
2876 	status = nxge_alloc_tx_buf_dma(nxgep, channel, dma_buf_p,
2877 	    sizes.tx_size, sizes.threshhold, num_chunks);
2878 	if (status != NXGE_OK) {
2879 		cmn_err(CE_NOTE, "nxge_alloc_tx_buf_dma failed!");
2880 		return (status);
2881 	}
2882 
2883 	/*
2884 	 * Allocate memory for descriptor rings and mailbox.
2885 	 */
2886 	status = nxge_alloc_tx_cntl_dma(nxgep, channel, dma_cntl_p,
2887 	    sizes.cr_size);
2888 	if (status != NXGE_OK) {
2889 		nxge_free_tx_buf_dma(nxgep, *dma_buf_p, *num_chunks);
2890 		cmn_err(CE_NOTE, "nxge_alloc_tx_cntl_dma failed!");
2891 		return (status);
2892 	}
2893 
2894 	return (NXGE_OK);
2895 }
2896 
2897 void
2898 nxge_free_txb(
2899 	p_nxge_t nxgep,
2900 	int channel)
2901 {
2902 	nxge_dma_common_t	*data;
2903 	nxge_dma_common_t	*control;
2904 	uint32_t 		num_chunks;
2905 
2906 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_txb"));
2907 
2908 	data = nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2909 	num_chunks = nxgep->tx_buf_pool_p->num_chunks[channel];
2910 	nxge_free_tx_buf_dma(nxgep, data, num_chunks);
2911 
2912 	nxgep->tx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2913 	nxgep->tx_buf_pool_p->num_chunks[channel] = 0;
2914 
2915 	control = nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2916 	nxge_free_tx_cntl_dma(nxgep, control);
2917 
2918 	nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2919 
2920 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2921 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2922 
2923 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_txb"));
2924 }
2925 
2926 /*
2927  * nxge_alloc_tx_mem_pool
2928  *
2929  *	This function allocates all of the per-port TDC control data structures.
2930  *	The per-channel (TDC) data structures are allocated when needed.
2931  *
2932  * Arguments:
2933  * 	nxgep
2934  *
2935  * Notes:
2936  *
2937  * Context:
2938  *	Any domain
2939  */
2940 nxge_status_t
2941 nxge_alloc_tx_mem_pool(p_nxge_t nxgep)
2942 {
2943 	nxge_hw_pt_cfg_t	*p_cfgp;
2944 	nxge_dma_pool_t		*dma_poolp;
2945 	nxge_dma_common_t	**dma_buf_p;
2946 	nxge_dma_pool_t		*dma_cntl_poolp;
2947 	nxge_dma_common_t	**dma_cntl_p;
2948 	uint32_t		*num_chunks; /* per dma */
2949 	int			tdc_max;
2950 
2951 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool"));
2952 
2953 	p_cfgp = &nxgep->pt_config.hw_config;
2954 	tdc_max = NXGE_MAX_TDCS;
2955 
2956 	/*
2957 	 * Allocate memory for each transmit DMA channel.
2958 	 */
2959 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2960 	    KM_SLEEP);
2961 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2962 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2963 
2964 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2965 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2966 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2967 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2968 
2969 	if (nxge_tx_ring_size > TDC_DEFAULT_MAX) {
2970 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2971 		    "nxge_alloc_tx_mem_pool: TDC too high %d, "
2972 		    "set to default %d",
2973 		    nxge_tx_ring_size, TDC_DEFAULT_MAX));
2974 		nxge_tx_ring_size = TDC_DEFAULT_MAX;
2975 	}
2976 
2977 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2978 	/*
2979 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2980 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2981 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2982 	 * function). The transmit ring is limited to 8K (includes the
2983 	 * mailbox).
2984 	 */
2985 	if (nxgep->niu_type == N2_NIU) {
2986 		if ((nxge_tx_ring_size > NXGE_NIU_CONTIG_TX_MAX) ||
2987 		    (!ISP2(nxge_tx_ring_size))) {
2988 			nxge_tx_ring_size = NXGE_NIU_CONTIG_TX_MAX;
2989 		}
2990 	}
2991 #endif
2992 
2993 	nxgep->nxge_port_tx_ring_size = nxge_tx_ring_size;
2994 
2995 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2996 	    sizeof (uint32_t) * tdc_max, KM_SLEEP);
2997 
2998 	dma_poolp->ndmas = p_cfgp->tdc.owned;
2999 	dma_poolp->num_chunks = num_chunks;
3000 	dma_poolp->dma_buf_pool_p = dma_buf_p;
3001 	nxgep->tx_buf_pool_p = dma_poolp;
3002 
3003 	dma_poolp->buf_allocated = B_TRUE;
3004 
3005 	dma_cntl_poolp->ndmas = p_cfgp->tdc.owned;
3006 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
3007 	nxgep->tx_cntl_pool_p = dma_cntl_poolp;
3008 
3009 	dma_cntl_poolp->buf_allocated = B_TRUE;
3010 
3011 	nxgep->tx_rings =
3012 	    KMEM_ZALLOC(sizeof (tx_rings_t), KM_SLEEP);
3013 	nxgep->tx_rings->rings =
3014 	    KMEM_ZALLOC(sizeof (p_tx_ring_t) * tdc_max, KM_SLEEP);
3015 	nxgep->tx_mbox_areas_p =
3016 	    KMEM_ZALLOC(sizeof (tx_mbox_areas_t), KM_SLEEP);
3017 	nxgep->tx_mbox_areas_p->txmbox_areas_p =
3018 	    KMEM_ZALLOC(sizeof (p_tx_mbox_t) * tdc_max, KM_SLEEP);
3019 
3020 	nxgep->tx_rings->ndmas = p_cfgp->tdc.owned;
3021 
3022 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
3023 	    "==> nxge_alloc_tx_mem_pool: ndmas %d poolp->ndmas %d",
3024 	    tdc_max, dma_poolp->ndmas));
3025 
3026 	return (NXGE_OK);
3027 }
3028 
3029 nxge_status_t
3030 nxge_alloc_tx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
3031     p_nxge_dma_common_t *dmap, size_t alloc_size,
3032     size_t block_size, uint32_t *num_chunks)
3033 {
3034 	p_nxge_dma_common_t 	tx_dmap;
3035 	nxge_status_t		status = NXGE_OK;
3036 	size_t			total_alloc_size;
3037 	size_t			allocated = 0;
3038 	int			i, size_index, array_size;
3039 
3040 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_buf_dma"));
3041 
3042 	tx_dmap = (p_nxge_dma_common_t)
3043 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
3044 	    KM_SLEEP);
3045 
3046 	total_alloc_size = alloc_size;
3047 	i = 0;
3048 	size_index = 0;
3049 	array_size =  sizeof (alloc_sizes) /  sizeof (size_t);
3050 	while ((size_index < array_size) &&
3051 	    (alloc_sizes[size_index] < alloc_size))
3052 		size_index++;
3053 	if (size_index >= array_size) {
3054 		size_index = array_size - 1;
3055 	}
3056 
3057 	while ((allocated < total_alloc_size) &&
3058 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
3059 
3060 		tx_dmap[i].dma_chunk_index = i;
3061 		tx_dmap[i].block_size = block_size;
3062 		tx_dmap[i].alength = alloc_sizes[size_index];
3063 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
3064 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
3065 		tx_dmap[i].dma_channel = dma_channel;
3066 		tx_dmap[i].contig_alloc_type = B_FALSE;
3067 		tx_dmap[i].kmem_alloc_type = B_FALSE;
3068 
3069 		/*
3070 		 * N2/NIU: data buffers must be contiguous as the driver
3071 		 *	   needs to call Hypervisor api to set up
3072 		 *	   logical pages.
3073 		 */
3074 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
3075 			tx_dmap[i].contig_alloc_type = B_TRUE;
3076 		}
3077 
3078 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3079 		    &nxge_tx_dma_attr,
3080 		    tx_dmap[i].alength,
3081 		    &nxge_dev_buf_dma_acc_attr,
3082 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
3083 		    (p_nxge_dma_common_t)(&tx_dmap[i]));
3084 		if (status != NXGE_OK) {
3085 			size_index--;
3086 		} else {
3087 			i++;
3088 			allocated += alloc_sizes[size_index];
3089 		}
3090 	}
3091 
3092 	if (allocated < total_alloc_size) {
3093 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3094 		    "==> nxge_alloc_tx_buf_dma: not enough channel %d: "
3095 		    "allocated 0x%x requested 0x%x",
3096 		    dma_channel,
3097 		    allocated, total_alloc_size));
3098 		status = NXGE_ERROR;
3099 		goto nxge_alloc_tx_mem_fail1;
3100 	}
3101 
3102 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3103 	    "==> nxge_alloc_tx_buf_dma: Allocated for channel %d: "
3104 	    "allocated 0x%x requested 0x%x",
3105 	    dma_channel,
3106 	    allocated, total_alloc_size));
3107 
3108 	*num_chunks = i;
3109 	*dmap = tx_dmap;
3110 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3111 	    "==> nxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
3112 	    *dmap, i));
3113 	goto nxge_alloc_tx_mem_exit;
3114 
3115 nxge_alloc_tx_mem_fail1:
3116 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
3117 
3118 nxge_alloc_tx_mem_exit:
3119 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3120 	    "<== nxge_alloc_tx_buf_dma status 0x%08x", status));
3121 
3122 	return (status);
3123 }
3124 
3125 /*ARGSUSED*/
3126 static void
3127 nxge_free_tx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
3128     uint32_t num_chunks)
3129 {
3130 	int		i;
3131 
3132 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_tx_buf_dma"));
3133 
3134 	if (dmap == 0)
3135 		return;
3136 
3137 	for (i = 0; i < num_chunks; i++) {
3138 		nxge_dma_mem_free(dmap++);
3139 	}
3140 
3141 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_tx_buf_dma"));
3142 }
3143 
3144 /*ARGSUSED*/
3145 nxge_status_t
3146 nxge_alloc_tx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
3147     p_nxge_dma_common_t *dmap, size_t size)
3148 {
3149 	p_nxge_dma_common_t 	tx_dmap;
3150 	nxge_status_t		status = NXGE_OK;
3151 
3152 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_cntl_dma"));
3153 	tx_dmap = (p_nxge_dma_common_t)
3154 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
3155 
3156 	tx_dmap->contig_alloc_type = B_FALSE;
3157 	tx_dmap->kmem_alloc_type = B_FALSE;
3158 
3159 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3160 	    &nxge_desc_dma_attr,
3161 	    size,
3162 	    &nxge_dev_desc_dma_acc_attr,
3163 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
3164 	    tx_dmap);
3165 	if (status != NXGE_OK) {
3166 		goto nxge_alloc_tx_cntl_dma_fail1;
3167 	}
3168 
3169 	*dmap = tx_dmap;
3170 	goto nxge_alloc_tx_cntl_dma_exit;
3171 
3172 nxge_alloc_tx_cntl_dma_fail1:
3173 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t));
3174 
3175 nxge_alloc_tx_cntl_dma_exit:
3176 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3177 	    "<== nxge_alloc_tx_cntl_dma status 0x%08x", status));
3178 
3179 	return (status);
3180 }
3181 
3182 /*ARGSUSED*/
3183 static void
3184 nxge_free_tx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
3185 {
3186 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_tx_cntl_dma"));
3187 
3188 	if (dmap == 0)
3189 		return;
3190 
3191 	nxge_dma_mem_free(dmap);
3192 
3193 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_tx_cntl_dma"));
3194 }
3195 
3196 /*
3197  * nxge_free_tx_mem_pool
3198  *
3199  *	This function frees all of the per-port TDC control data structures.
3200  *	The per-channel (TDC) data structures are freed when the channel
3201  *	is stopped.
3202  *
3203  * Arguments:
3204  * 	nxgep
3205  *
3206  * Notes:
3207  *
3208  * Context:
3209  *	Any domain
3210  */
3211 static void
3212 nxge_free_tx_mem_pool(p_nxge_t nxgep)
3213 {
3214 	int tdc_max = NXGE_MAX_TDCS;
3215 
3216 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_tx_mem_pool"));
3217 
3218 	if (!nxgep->tx_buf_pool_p || !nxgep->tx_buf_pool_p->buf_allocated) {
3219 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3220 		    "<== nxge_free_tx_mem_pool "
3221 		    "(null tx buf pool or buf not allocated"));
3222 		return;
3223 	}
3224 	if (!nxgep->tx_cntl_pool_p || !nxgep->tx_cntl_pool_p->buf_allocated) {
3225 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3226 		    "<== nxge_free_tx_mem_pool "
3227 		    "(null tx cntl buf pool or cntl buf not allocated"));
3228 		return;
3229 	}
3230 
3231 	/* 1. Free the mailboxes. */
3232 	KMEM_FREE(nxgep->tx_mbox_areas_p->txmbox_areas_p,
3233 	    sizeof (p_tx_mbox_t) * tdc_max);
3234 	KMEM_FREE(nxgep->tx_mbox_areas_p, sizeof (tx_mbox_areas_t));
3235 
3236 	nxgep->tx_mbox_areas_p = 0;
3237 
3238 	/* 2. Free the transmit ring arrays. */
3239 	KMEM_FREE(nxgep->tx_rings->rings,
3240 	    sizeof (p_tx_ring_t) * tdc_max);
3241 	KMEM_FREE(nxgep->tx_rings, sizeof (tx_rings_t));
3242 
3243 	nxgep->tx_rings = 0;
3244 
3245 	/* 3. Free the completion ring data structures. */
3246 	KMEM_FREE(nxgep->tx_cntl_pool_p->dma_buf_pool_p,
3247 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3248 	KMEM_FREE(nxgep->tx_cntl_pool_p, sizeof (nxge_dma_pool_t));
3249 
3250 	nxgep->tx_cntl_pool_p = 0;
3251 
3252 	/* 4. Free the data ring data structures. */
3253 	KMEM_FREE(nxgep->tx_buf_pool_p->num_chunks,
3254 	    sizeof (uint32_t) * tdc_max);
3255 	KMEM_FREE(nxgep->tx_buf_pool_p->dma_buf_pool_p,
3256 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3257 	KMEM_FREE(nxgep->tx_buf_pool_p, sizeof (nxge_dma_pool_t));
3258 
3259 	nxgep->tx_buf_pool_p = 0;
3260 
3261 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_tx_mem_pool"));
3262 }
3263 
3264 /*ARGSUSED*/
3265 static nxge_status_t
3266 nxge_dma_mem_alloc(p_nxge_t nxgep, dma_method_t method,
3267 	struct ddi_dma_attr *dma_attrp,
3268 	size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
3269 	p_nxge_dma_common_t dma_p)
3270 {
3271 	caddr_t 		kaddrp;
3272 	int			ddi_status = DDI_SUCCESS;
3273 	boolean_t		contig_alloc_type;
3274 	boolean_t		kmem_alloc_type;
3275 
3276 	contig_alloc_type = dma_p->contig_alloc_type;
3277 
3278 	if (contig_alloc_type && (nxgep->niu_type != N2_NIU)) {
3279 		/*
3280 		 * contig_alloc_type for contiguous memory only allowed
3281 		 * for N2/NIU.
3282 		 */
3283 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3284 		    "nxge_dma_mem_alloc: alloc type not allowed (%d)",
3285 		    dma_p->contig_alloc_type));
3286 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3287 	}
3288 
3289 	dma_p->dma_handle = NULL;
3290 	dma_p->acc_handle = NULL;
3291 	dma_p->kaddrp = dma_p->last_kaddrp = NULL;
3292 	dma_p->first_ioaddr_pp = dma_p->last_ioaddr_pp = NULL;
3293 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, dma_attrp,
3294 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
3295 	if (ddi_status != DDI_SUCCESS) {
3296 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3297 		    "nxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
3298 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3299 	}
3300 
3301 	kmem_alloc_type = dma_p->kmem_alloc_type;
3302 
3303 	switch (contig_alloc_type) {
3304 	case B_FALSE:
3305 		switch (kmem_alloc_type) {
3306 		case B_FALSE:
3307 			ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle,
3308 			    length,
3309 			    acc_attr_p,
3310 			    xfer_flags,
3311 			    DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
3312 			    &dma_p->acc_handle);
3313 			if (ddi_status != DDI_SUCCESS) {
3314 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3315 				    "nxge_dma_mem_alloc: "
3316 				    "ddi_dma_mem_alloc failed"));
3317 				ddi_dma_free_handle(&dma_p->dma_handle);
3318 				dma_p->dma_handle = NULL;
3319 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3320 			}
3321 			if (dma_p->alength < length) {
3322 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3323 				    "nxge_dma_mem_alloc:di_dma_mem_alloc "
3324 				    "< length."));
3325 				ddi_dma_mem_free(&dma_p->acc_handle);
3326 				ddi_dma_free_handle(&dma_p->dma_handle);
3327 				dma_p->acc_handle = NULL;
3328 				dma_p->dma_handle = NULL;
3329 				return (NXGE_ERROR);
3330 			}
3331 
3332 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3333 			    NULL,
3334 			    kaddrp, dma_p->alength, xfer_flags,
3335 			    DDI_DMA_DONTWAIT,
3336 			    0, &dma_p->dma_cookie, &dma_p->ncookies);
3337 			if (ddi_status != DDI_DMA_MAPPED) {
3338 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3339 				    "nxge_dma_mem_alloc: ddi_dma_addr_bind "
3340 				    "failed "
3341 				    "(staus 0x%x ncookies %d.)", ddi_status,
3342 				    dma_p->ncookies));
3343 				if (dma_p->acc_handle) {
3344 					ddi_dma_mem_free(&dma_p->acc_handle);
3345 					dma_p->acc_handle = NULL;
3346 				}
3347 				ddi_dma_free_handle(&dma_p->dma_handle);
3348 				dma_p->dma_handle = NULL;
3349 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3350 			}
3351 
3352 			if (dma_p->ncookies != 1) {
3353 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3354 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3355 				    "> 1 cookie"
3356 				    "(staus 0x%x ncookies %d.)", ddi_status,
3357 				    dma_p->ncookies));
3358 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3359 				if (dma_p->acc_handle) {
3360 					ddi_dma_mem_free(&dma_p->acc_handle);
3361 					dma_p->acc_handle = NULL;
3362 				}
3363 				ddi_dma_free_handle(&dma_p->dma_handle);
3364 				dma_p->dma_handle = NULL;
3365 				dma_p->acc_handle = NULL;
3366 				return (NXGE_ERROR);
3367 			}
3368 			break;
3369 
3370 		case B_TRUE:
3371 			kaddrp = KMEM_ALLOC(length, KM_NOSLEEP);
3372 			if (kaddrp == NULL) {
3373 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3374 				    "nxge_dma_mem_alloc:ddi_dma_mem_alloc "
3375 				    "kmem alloc failed"));
3376 				return (NXGE_ERROR);
3377 			}
3378 
3379 			dma_p->alength = length;
3380 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3381 			    NULL, kaddrp, dma_p->alength, xfer_flags,
3382 			    DDI_DMA_DONTWAIT, 0,
3383 			    &dma_p->dma_cookie, &dma_p->ncookies);
3384 			if (ddi_status != DDI_DMA_MAPPED) {
3385 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3386 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind: "
3387 				    "(kmem_alloc) failed kaddrp $%p length %d "
3388 				    "(staus 0x%x (%d) ncookies %d.)",
3389 				    kaddrp, length,
3390 				    ddi_status, ddi_status, dma_p->ncookies));
3391 				KMEM_FREE(kaddrp, length);
3392 				dma_p->acc_handle = NULL;
3393 				ddi_dma_free_handle(&dma_p->dma_handle);
3394 				dma_p->dma_handle = NULL;
3395 				dma_p->kaddrp = NULL;
3396 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3397 			}
3398 
3399 			if (dma_p->ncookies != 1) {
3400 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3401 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3402 				    "(kmem_alloc) > 1 cookie"
3403 				    "(staus 0x%x ncookies %d.)", ddi_status,
3404 				    dma_p->ncookies));
3405 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3406 				KMEM_FREE(kaddrp, length);
3407 				ddi_dma_free_handle(&dma_p->dma_handle);
3408 				dma_p->dma_handle = NULL;
3409 				dma_p->acc_handle = NULL;
3410 				dma_p->kaddrp = NULL;
3411 				return (NXGE_ERROR);
3412 			}
3413 
3414 			dma_p->kaddrp = kaddrp;
3415 
3416 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
3417 			    "nxge_dma_mem_alloc: kmem_alloc dmap $%p "
3418 			    "kaddr $%p alength %d",
3419 			    dma_p,
3420 			    kaddrp,
3421 			    dma_p->alength));
3422 			break;
3423 		}
3424 		break;
3425 
3426 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3427 	case B_TRUE:
3428 		kaddrp = (caddr_t)contig_mem_alloc(length);
3429 		if (kaddrp == NULL) {
3430 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3431 			    "nxge_dma_mem_alloc:contig_mem_alloc failed."));
3432 			ddi_dma_free_handle(&dma_p->dma_handle);
3433 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3434 		}
3435 
3436 		dma_p->alength = length;
3437 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
3438 		    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
3439 		    &dma_p->dma_cookie, &dma_p->ncookies);
3440 		if (ddi_status != DDI_DMA_MAPPED) {
3441 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3442 			    "nxge_dma_mem_alloc:di_dma_addr_bind failed "
3443 			    "(status 0x%x ncookies %d.)", ddi_status,
3444 			    dma_p->ncookies));
3445 
3446 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3447 			    "==> nxge_dma_mem_alloc: (not mapped)"
3448 			    "length %lu (0x%x) "
3449 			    "free contig kaddrp $%p "
3450 			    "va_to_pa $%p",
3451 			    length, length,
3452 			    kaddrp,
3453 			    va_to_pa(kaddrp)));
3454 
3455 
3456 			contig_mem_free((void *)kaddrp, length);
3457 			ddi_dma_free_handle(&dma_p->dma_handle);
3458 
3459 			dma_p->dma_handle = NULL;
3460 			dma_p->acc_handle = NULL;
3461 			dma_p->alength = NULL;
3462 			dma_p->kaddrp = NULL;
3463 
3464 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3465 		}
3466 
3467 		if (dma_p->ncookies != 1 ||
3468 		    (dma_p->dma_cookie.dmac_laddress == NULL)) {
3469 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3470 			    "nxge_dma_mem_alloc:di_dma_addr_bind > 1 "
3471 			    "cookie or "
3472 			    "dmac_laddress is NULL $%p size %d "
3473 			    " (status 0x%x ncookies %d.)",
3474 			    ddi_status,
3475 			    dma_p->dma_cookie.dmac_laddress,
3476 			    dma_p->dma_cookie.dmac_size,
3477 			    dma_p->ncookies));
3478 
3479 			contig_mem_free((void *)kaddrp, length);
3480 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3481 			ddi_dma_free_handle(&dma_p->dma_handle);
3482 
3483 			dma_p->alength = 0;
3484 			dma_p->dma_handle = NULL;
3485 			dma_p->acc_handle = NULL;
3486 			dma_p->kaddrp = NULL;
3487 
3488 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3489 		}
3490 		break;
3491 
3492 #else
3493 	case B_TRUE:
3494 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3495 		    "nxge_dma_mem_alloc: invalid alloc type for !sun4v"));
3496 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3497 #endif
3498 	}
3499 
3500 	dma_p->kaddrp = kaddrp;
3501 	dma_p->last_kaddrp = (unsigned char *)kaddrp +
3502 	    dma_p->alength - RXBUF_64B_ALIGNED;
3503 #if defined(__i386)
3504 	dma_p->ioaddr_pp =
3505 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
3506 #else
3507 	dma_p->ioaddr_pp = (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3508 #endif
3509 	dma_p->last_ioaddr_pp =
3510 #if defined(__i386)
3511 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress +
3512 #else
3513 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress +
3514 #endif
3515 	    dma_p->alength - RXBUF_64B_ALIGNED;
3516 
3517 	NPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
3518 
3519 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3520 	dma_p->orig_ioaddr_pp =
3521 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3522 	dma_p->orig_alength = length;
3523 	dma_p->orig_kaddrp = kaddrp;
3524 	dma_p->orig_vatopa = (uint64_t)va_to_pa(kaddrp);
3525 #endif
3526 
3527 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_dma_mem_alloc: "
3528 	    "dma buffer allocated: dma_p $%p "
3529 	    "return dmac_ladress from cookie $%p cookie dmac_size %d "
3530 	    "dma_p->ioaddr_p $%p "
3531 	    "dma_p->orig_ioaddr_p $%p "
3532 	    "orig_vatopa $%p "
3533 	    "alength %d (0x%x) "
3534 	    "kaddrp $%p "
3535 	    "length %d (0x%x)",
3536 	    dma_p,
3537 	    dma_p->dma_cookie.dmac_laddress, dma_p->dma_cookie.dmac_size,
3538 	    dma_p->ioaddr_pp,
3539 	    dma_p->orig_ioaddr_pp,
3540 	    dma_p->orig_vatopa,
3541 	    dma_p->alength, dma_p->alength,
3542 	    kaddrp,
3543 	    length, length));
3544 
3545 	return (NXGE_OK);
3546 }
3547 
3548 static void
3549 nxge_dma_mem_free(p_nxge_dma_common_t dma_p)
3550 {
3551 	if (dma_p->dma_handle != NULL) {
3552 		if (dma_p->ncookies) {
3553 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3554 			dma_p->ncookies = 0;
3555 		}
3556 		ddi_dma_free_handle(&dma_p->dma_handle);
3557 		dma_p->dma_handle = NULL;
3558 	}
3559 
3560 	if (dma_p->acc_handle != NULL) {
3561 		ddi_dma_mem_free(&dma_p->acc_handle);
3562 		dma_p->acc_handle = NULL;
3563 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3564 	}
3565 
3566 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3567 	if (dma_p->contig_alloc_type &&
3568 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3569 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_mem_free: "
3570 		    "kaddrp $%p (orig_kaddrp $%p)"
3571 		    "mem type %d ",
3572 		    "orig_alength %d "
3573 		    "alength 0x%x (%d)",
3574 		    dma_p->kaddrp,
3575 		    dma_p->orig_kaddrp,
3576 		    dma_p->contig_alloc_type,
3577 		    dma_p->orig_alength,
3578 		    dma_p->alength, dma_p->alength));
3579 
3580 		contig_mem_free(dma_p->orig_kaddrp, dma_p->orig_alength);
3581 		dma_p->orig_alength = NULL;
3582 		dma_p->orig_kaddrp = NULL;
3583 		dma_p->contig_alloc_type = B_FALSE;
3584 	}
3585 #endif
3586 	dma_p->kaddrp = NULL;
3587 	dma_p->alength = NULL;
3588 }
3589 
3590 static void
3591 nxge_dma_free_rx_data_buf(p_nxge_dma_common_t dma_p)
3592 {
3593 	uint64_t kaddr;
3594 	uint32_t buf_size;
3595 
3596 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "==> nxge_dma_free_rx_data_buf"));
3597 
3598 	if (dma_p->dma_handle != NULL) {
3599 		if (dma_p->ncookies) {
3600 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3601 			dma_p->ncookies = 0;
3602 		}
3603 		ddi_dma_free_handle(&dma_p->dma_handle);
3604 		dma_p->dma_handle = NULL;
3605 	}
3606 
3607 	if (dma_p->acc_handle != NULL) {
3608 		ddi_dma_mem_free(&dma_p->acc_handle);
3609 		dma_p->acc_handle = NULL;
3610 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3611 	}
3612 
3613 	NXGE_DEBUG_MSG((NULL, DMA_CTL,
3614 	    "==> nxge_dma_free_rx_data_buf: dmap $%p buf_alloc_state %d",
3615 	    dma_p,
3616 	    dma_p->buf_alloc_state));
3617 
3618 	if (!(dma_p->buf_alloc_state & BUF_ALLOCATED_WAIT_FREE)) {
3619 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3620 		    "<== nxge_dma_free_rx_data_buf: "
3621 		    "outstanding data buffers"));
3622 		return;
3623 	}
3624 
3625 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3626 	if (dma_p->contig_alloc_type &&
3627 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3628 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_free_rx_data_buf: "
3629 		    "kaddrp $%p (orig_kaddrp $%p)"
3630 		    "mem type %d ",
3631 		    "orig_alength %d "
3632 		    "alength 0x%x (%d)",
3633 		    dma_p->kaddrp,
3634 		    dma_p->orig_kaddrp,
3635 		    dma_p->contig_alloc_type,
3636 		    dma_p->orig_alength,
3637 		    dma_p->alength, dma_p->alength));
3638 
3639 		kaddr = (uint64_t)dma_p->orig_kaddrp;
3640 		buf_size = dma_p->orig_alength;
3641 		nxge_free_buf(CONTIG_MEM_ALLOC, kaddr, buf_size);
3642 		dma_p->orig_alength = NULL;
3643 		dma_p->orig_kaddrp = NULL;
3644 		dma_p->contig_alloc_type = B_FALSE;
3645 		dma_p->kaddrp = NULL;
3646 		dma_p->alength = NULL;
3647 		return;
3648 	}
3649 #endif
3650 
3651 	if (dma_p->kmem_alloc_type) {
3652 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3653 		    "nxge_dma_free_rx_data_buf: free kmem "
3654 		    "kaddrp $%p (orig_kaddrp $%p)"
3655 		    "alloc type %d "
3656 		    "orig_alength %d "
3657 		    "alength 0x%x (%d)",
3658 		    dma_p->kaddrp,
3659 		    dma_p->orig_kaddrp,
3660 		    dma_p->kmem_alloc_type,
3661 		    dma_p->orig_alength,
3662 		    dma_p->alength, dma_p->alength));
3663 #if defined(__i386)
3664 		kaddr = (uint64_t)(uint32_t)dma_p->kaddrp;
3665 #else
3666 		kaddr = (uint64_t)dma_p->kaddrp;
3667 #endif
3668 		buf_size = dma_p->orig_alength;
3669 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3670 		    "nxge_dma_free_rx_data_buf: free dmap $%p "
3671 		    "kaddr $%p buf_size %d",
3672 		    dma_p,
3673 		    kaddr, buf_size));
3674 		nxge_free_buf(KMEM_ALLOC, kaddr, buf_size);
3675 		dma_p->alength = 0;
3676 		dma_p->orig_alength = 0;
3677 		dma_p->kaddrp = NULL;
3678 		dma_p->kmem_alloc_type = B_FALSE;
3679 	}
3680 
3681 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "<== nxge_dma_free_rx_data_buf"));
3682 }
3683 
3684 /*
3685  *	nxge_m_start() -- start transmitting and receiving.
3686  *
3687  *	This function is called by the MAC layer when the first
3688  *	stream is open to prepare the hardware ready for sending
3689  *	and transmitting packets.
3690  */
3691 static int
3692 nxge_m_start(void *arg)
3693 {
3694 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3695 
3696 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_start"));
3697 
3698 	if (nxge_peu_reset_enable && !nxgep->nxge_link_poll_timerid) {
3699 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
3700 	}
3701 
3702 	MUTEX_ENTER(nxgep->genlock);
3703 	if (nxge_init(nxgep) != NXGE_OK) {
3704 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3705 		    "<== nxge_m_start: initialization failed"));
3706 		MUTEX_EXIT(nxgep->genlock);
3707 		return (EIO);
3708 	}
3709 
3710 	if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
3711 		goto nxge_m_start_exit;
3712 	/*
3713 	 * Start timer to check the system error and tx hangs
3714 	 */
3715 	if (!isLDOMguest(nxgep))
3716 		nxgep->nxge_timerid = nxge_start_timer(nxgep,
3717 		    nxge_check_hw_state, NXGE_CHECK_TIMER);
3718 #if	defined(sun4v)
3719 	else
3720 		nxge_hio_start_timer(nxgep);
3721 #endif
3722 
3723 	nxgep->link_notify = B_TRUE;
3724 
3725 	nxgep->nxge_mac_state = NXGE_MAC_STARTED;
3726 
3727 nxge_m_start_exit:
3728 	MUTEX_EXIT(nxgep->genlock);
3729 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_start"));
3730 	return (0);
3731 }
3732 
3733 
3734 static boolean_t
3735 nxge_check_groups_stopped(p_nxge_t nxgep)
3736 {
3737 	int	i;
3738 
3739 	for (i = 0; i < NXGE_MAX_RDC_GROUPS; i++) {
3740 		if (nxgep->rx_hio_groups[i].started)
3741 			return (B_FALSE);
3742 	}
3743 
3744 	return (B_TRUE);
3745 }
3746 
3747 /*
3748  *	nxge_m_stop(): stop transmitting and receiving.
3749  */
3750 static void
3751 nxge_m_stop(void *arg)
3752 {
3753 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3754 	boolean_t	groups_stopped;
3755 
3756 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_stop"));
3757 
3758 	groups_stopped = nxge_check_groups_stopped(nxgep);
3759 #ifdef later
3760 	ASSERT(groups_stopped == B_FALSE);
3761 #endif
3762 
3763 	if (!groups_stopped) {
3764 		cmn_err(CE_WARN, "nxge(%d): groups are not stopped!\n",
3765 		    nxgep->instance);
3766 		return;
3767 	}
3768 
3769 	MUTEX_ENTER(nxgep->genlock);
3770 	nxgep->nxge_mac_state = NXGE_MAC_STOPPING;
3771 
3772 	if (nxgep->nxge_timerid) {
3773 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
3774 		nxgep->nxge_timerid = 0;
3775 	}
3776 
3777 	nxge_uninit(nxgep);
3778 
3779 	nxgep->nxge_mac_state = NXGE_MAC_STOPPED;
3780 
3781 	MUTEX_EXIT(nxgep->genlock);
3782 
3783 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_stop"));
3784 }
3785 
3786 static int
3787 nxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
3788 {
3789 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3790 	struct 		ether_addr addrp;
3791 
3792 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3793 	    "==> nxge_m_multicst: add %d", add));
3794 
3795 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
3796 	if (add) {
3797 		if (nxge_add_mcast_addr(nxgep, &addrp)) {
3798 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3799 			    "<== nxge_m_multicst: add multicast failed"));
3800 			return (EINVAL);
3801 		}
3802 	} else {
3803 		if (nxge_del_mcast_addr(nxgep, &addrp)) {
3804 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3805 			    "<== nxge_m_multicst: del multicast failed"));
3806 			return (EINVAL);
3807 		}
3808 	}
3809 
3810 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_multicst"));
3811 
3812 	return (0);
3813 }
3814 
3815 static int
3816 nxge_m_promisc(void *arg, boolean_t on)
3817 {
3818 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3819 
3820 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3821 	    "==> nxge_m_promisc: on %d", on));
3822 
3823 	if (nxge_set_promisc(nxgep, on)) {
3824 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3825 		    "<== nxge_m_promisc: set promisc failed"));
3826 		return (EINVAL);
3827 	}
3828 
3829 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3830 	    "<== nxge_m_promisc: on %d", on));
3831 
3832 	return (0);
3833 }
3834 
3835 static void
3836 nxge_m_ioctl(void *arg,  queue_t *wq, mblk_t *mp)
3837 {
3838 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3839 	struct 		iocblk *iocp;
3840 	boolean_t 	need_privilege;
3841 	int 		err;
3842 	int 		cmd;
3843 
3844 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl"));
3845 
3846 	iocp = (struct iocblk *)mp->b_rptr;
3847 	iocp->ioc_error = 0;
3848 	need_privilege = B_TRUE;
3849 	cmd = iocp->ioc_cmd;
3850 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl: cmd 0x%08x", cmd));
3851 	switch (cmd) {
3852 	default:
3853 		miocnak(wq, mp, 0, EINVAL);
3854 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl: invalid"));
3855 		return;
3856 
3857 	case LB_GET_INFO_SIZE:
3858 	case LB_GET_INFO:
3859 	case LB_GET_MODE:
3860 		need_privilege = B_FALSE;
3861 		break;
3862 	case LB_SET_MODE:
3863 		break;
3864 
3865 
3866 	case NXGE_GET_MII:
3867 	case NXGE_PUT_MII:
3868 	case NXGE_GET64:
3869 	case NXGE_PUT64:
3870 	case NXGE_GET_TX_RING_SZ:
3871 	case NXGE_GET_TX_DESC:
3872 	case NXGE_TX_SIDE_RESET:
3873 	case NXGE_RX_SIDE_RESET:
3874 	case NXGE_GLOBAL_RESET:
3875 	case NXGE_RESET_MAC:
3876 	case NXGE_TX_REGS_DUMP:
3877 	case NXGE_RX_REGS_DUMP:
3878 	case NXGE_INT_REGS_DUMP:
3879 	case NXGE_VIR_INT_REGS_DUMP:
3880 	case NXGE_PUT_TCAM:
3881 	case NXGE_GET_TCAM:
3882 	case NXGE_RTRACE:
3883 	case NXGE_RDUMP:
3884 
3885 		need_privilege = B_FALSE;
3886 		break;
3887 	case NXGE_INJECT_ERR:
3888 		cmn_err(CE_NOTE, "!nxge_m_ioctl: Inject error\n");
3889 		nxge_err_inject(nxgep, wq, mp);
3890 		break;
3891 	}
3892 
3893 	if (need_privilege) {
3894 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
3895 		if (err != 0) {
3896 			miocnak(wq, mp, 0, err);
3897 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3898 			    "<== nxge_m_ioctl: no priv"));
3899 			return;
3900 		}
3901 	}
3902 
3903 	switch (cmd) {
3904 
3905 	case LB_GET_MODE:
3906 	case LB_SET_MODE:
3907 	case LB_GET_INFO_SIZE:
3908 	case LB_GET_INFO:
3909 		nxge_loopback_ioctl(nxgep, wq, mp, iocp);
3910 		break;
3911 
3912 	case NXGE_GET_MII:
3913 	case NXGE_PUT_MII:
3914 	case NXGE_PUT_TCAM:
3915 	case NXGE_GET_TCAM:
3916 	case NXGE_GET64:
3917 	case NXGE_PUT64:
3918 	case NXGE_GET_TX_RING_SZ:
3919 	case NXGE_GET_TX_DESC:
3920 	case NXGE_TX_SIDE_RESET:
3921 	case NXGE_RX_SIDE_RESET:
3922 	case NXGE_GLOBAL_RESET:
3923 	case NXGE_RESET_MAC:
3924 	case NXGE_TX_REGS_DUMP:
3925 	case NXGE_RX_REGS_DUMP:
3926 	case NXGE_INT_REGS_DUMP:
3927 	case NXGE_VIR_INT_REGS_DUMP:
3928 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
3929 		    "==> nxge_m_ioctl: cmd 0x%x", cmd));
3930 		nxge_hw_ioctl(nxgep, wq, mp, iocp);
3931 		break;
3932 	}
3933 
3934 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl"));
3935 }
3936 
3937 extern void nxge_rx_hw_blank(void *arg, time_t ticks, uint_t count);
3938 
3939 void
3940 nxge_mmac_kstat_update(p_nxge_t nxgep, int slot, boolean_t factory)
3941 {
3942 	p_nxge_mmac_stats_t mmac_stats;
3943 	int i;
3944 	nxge_mmac_t *mmac_info;
3945 
3946 	mmac_info = &nxgep->nxge_mmac_info;
3947 
3948 	mmac_stats = &nxgep->statsp->mmac_stats;
3949 	mmac_stats->mmac_max_cnt = mmac_info->num_mmac;
3950 	mmac_stats->mmac_avail_cnt = mmac_info->naddrfree;
3951 
3952 	for (i = 0; i < ETHERADDRL; i++) {
3953 		if (factory) {
3954 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3955 			    = mmac_info->factory_mac_pool[slot][
3956 			    (ETHERADDRL-1) - i];
3957 		} else {
3958 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3959 			    = mmac_info->mac_pool[slot].addr[
3960 			    (ETHERADDRL - 1) - i];
3961 		}
3962 	}
3963 }
3964 
3965 /*
3966  * nxge_altmac_set() -- Set an alternate MAC address
3967  */
3968 static int
3969 nxge_altmac_set(p_nxge_t nxgep, uint8_t *maddr, int slot,
3970 	int rdctbl, boolean_t usetbl)
3971 {
3972 	uint8_t addrn;
3973 	uint8_t portn;
3974 	npi_mac_addr_t altmac;
3975 	hostinfo_t mac_rdc;
3976 	p_nxge_class_pt_cfg_t clscfgp;
3977 
3978 
3979 	altmac.w2 = ((uint16_t)maddr[0] << 8) | ((uint16_t)maddr[1] & 0x0ff);
3980 	altmac.w1 = ((uint16_t)maddr[2] << 8) | ((uint16_t)maddr[3] & 0x0ff);
3981 	altmac.w0 = ((uint16_t)maddr[4] << 8) | ((uint16_t)maddr[5] & 0x0ff);
3982 
3983 	portn = nxgep->mac.portnum;
3984 	addrn = (uint8_t)slot - 1;
3985 
3986 	if (npi_mac_altaddr_entry(nxgep->npi_handle, OP_SET,
3987 	    nxgep->function_num, addrn, &altmac) != NPI_SUCCESS)
3988 		return (EIO);
3989 
3990 	/*
3991 	 * Set the rdc table number for the host info entry
3992 	 * for this mac address slot.
3993 	 */
3994 	clscfgp = (p_nxge_class_pt_cfg_t)&nxgep->class_config;
3995 	mac_rdc.value = 0;
3996 	if (usetbl)
3997 		mac_rdc.bits.w0.rdc_tbl_num = rdctbl;
3998 	else
3999 		mac_rdc.bits.w0.rdc_tbl_num =
4000 		    clscfgp->mac_host_info[addrn].rdctbl;
4001 	mac_rdc.bits.w0.mac_pref = clscfgp->mac_host_info[addrn].mpr_npr;
4002 
4003 	if (npi_mac_hostinfo_entry(nxgep->npi_handle, OP_SET,
4004 	    nxgep->function_num, addrn, &mac_rdc) != NPI_SUCCESS) {
4005 		return (EIO);
4006 	}
4007 
4008 	/*
4009 	 * Enable comparison with the alternate MAC address.
4010 	 * While the first alternate addr is enabled by bit 1 of register
4011 	 * BMAC_ALTAD_CMPEN, it is enabled by bit 0 of register
4012 	 * XMAC_ADDR_CMPEN, so slot needs to be converted to addrn
4013 	 * accordingly before calling npi_mac_altaddr_entry.
4014 	 */
4015 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4016 		addrn = (uint8_t)slot - 1;
4017 	else
4018 		addrn = (uint8_t)slot;
4019 
4020 	if (npi_mac_altaddr_enable(nxgep->npi_handle,
4021 	    nxgep->function_num, addrn) != NPI_SUCCESS) {
4022 		return (EIO);
4023 	}
4024 
4025 	return (0);
4026 }
4027 
4028 /*
4029  * nxeg_m_mmac_add_g() - find an unused address slot, set the address
4030  * value to the one specified, enable the port to start filtering on
4031  * the new MAC address.  Returns 0 on success.
4032  */
4033 int
4034 nxge_m_mmac_add_g(void *arg, const uint8_t *maddr, int rdctbl,
4035 	boolean_t usetbl)
4036 {
4037 	p_nxge_t nxgep = arg;
4038 	int slot;
4039 	nxge_mmac_t *mmac_info;
4040 	int err;
4041 	nxge_status_t status;
4042 
4043 	mutex_enter(nxgep->genlock);
4044 
4045 	/*
4046 	 * Make sure that nxge is initialized, if _start() has
4047 	 * not been called.
4048 	 */
4049 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4050 		status = nxge_init(nxgep);
4051 		if (status != NXGE_OK) {
4052 			mutex_exit(nxgep->genlock);
4053 			return (ENXIO);
4054 		}
4055 	}
4056 
4057 	mmac_info = &nxgep->nxge_mmac_info;
4058 	if (mmac_info->naddrfree == 0) {
4059 		mutex_exit(nxgep->genlock);
4060 		return (ENOSPC);
4061 	}
4062 
4063 	/*
4064 	 * 	Search for the first available slot. Because naddrfree
4065 	 * is not zero, we are guaranteed to find one.
4066 	 *	Each of the first two ports of Neptune has 16 alternate
4067 	 * MAC slots but only the first 7 (of 15) slots have assigned factory
4068 	 * MAC addresses. We first search among the slots without bundled
4069 	 * factory MACs. If we fail to find one in that range, then we
4070 	 * search the slots with bundled factory MACs.  A factory MAC
4071 	 * will be wasted while the slot is used with a user MAC address.
4072 	 * But the slot could be used by factory MAC again after calling
4073 	 * nxge_m_mmac_remove and nxge_m_mmac_reserve.
4074 	 */
4075 	for (slot = 0; slot <= mmac_info->num_mmac; slot++) {
4076 		if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
4077 			break;
4078 	}
4079 
4080 	ASSERT(slot <= mmac_info->num_mmac);
4081 
4082 	if ((err = nxge_altmac_set(nxgep, (uint8_t *)maddr, slot, rdctbl,
4083 	    usetbl)) != 0) {
4084 		mutex_exit(nxgep->genlock);
4085 		return (err);
4086 	}
4087 
4088 	bcopy(maddr, mmac_info->mac_pool[slot].addr, ETHERADDRL);
4089 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED;
4090 	mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
4091 	mmac_info->naddrfree--;
4092 	nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4093 
4094 	mutex_exit(nxgep->genlock);
4095 	return (0);
4096 }
4097 
4098 /*
4099  * Remove the specified mac address and update the HW not to filter
4100  * the mac address anymore.
4101  */
4102 int
4103 nxge_m_mmac_remove(void *arg, int slot)
4104 {
4105 	p_nxge_t nxgep = arg;
4106 	nxge_mmac_t *mmac_info;
4107 	uint8_t addrn;
4108 	uint8_t portn;
4109 	int err = 0;
4110 	nxge_status_t status;
4111 
4112 	mutex_enter(nxgep->genlock);
4113 
4114 	/*
4115 	 * Make sure that nxge is initialized, if _start() has
4116 	 * not been called.
4117 	 */
4118 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4119 		status = nxge_init(nxgep);
4120 		if (status != NXGE_OK) {
4121 			mutex_exit(nxgep->genlock);
4122 			return (ENXIO);
4123 		}
4124 	}
4125 
4126 	mmac_info = &nxgep->nxge_mmac_info;
4127 	if (slot < 1 || slot > mmac_info->num_mmac) {
4128 		mutex_exit(nxgep->genlock);
4129 		return (EINVAL);
4130 	}
4131 
4132 	portn = nxgep->mac.portnum;
4133 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4134 		addrn = (uint8_t)slot - 1;
4135 	else
4136 		addrn = (uint8_t)slot;
4137 
4138 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
4139 		if (npi_mac_altaddr_disable(nxgep->npi_handle, portn, addrn)
4140 		    == NPI_SUCCESS) {
4141 			mmac_info->naddrfree++;
4142 			mmac_info->mac_pool[slot].flags &= ~MMAC_SLOT_USED;
4143 			/*
4144 			 * Regardless if the MAC we just stopped filtering
4145 			 * is a user addr or a facory addr, we must set
4146 			 * the MMAC_VENDOR_ADDR flag if this slot has an
4147 			 * associated factory MAC to indicate that a factory
4148 			 * MAC is available.
4149 			 */
4150 			if (slot <= mmac_info->num_factory_mmac) {
4151 				mmac_info->mac_pool[slot].flags
4152 				    |= MMAC_VENDOR_ADDR;
4153 			}
4154 			/*
4155 			 * Clear mac_pool[slot].addr so that kstat shows 0
4156 			 * alternate MAC address if the slot is not used.
4157 			 * (But nxge_m_mmac_get returns the factory MAC even
4158 			 * when the slot is not used!)
4159 			 */
4160 			bzero(mmac_info->mac_pool[slot].addr, ETHERADDRL);
4161 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4162 		} else {
4163 			err = EIO;
4164 		}
4165 	} else {
4166 		err = EINVAL;
4167 	}
4168 
4169 	mutex_exit(nxgep->genlock);
4170 	return (err);
4171 }
4172 
4173 /*
4174  * The callback to query all the factory addresses. naddr must be the same as
4175  * the number of factory addresses (returned by MAC_CAPAB_MULTIFACTADDR), and
4176  * mcm_addr is the space allocated for keep all the addresses, whose size is
4177  * naddr * MAXMACADDRLEN.
4178  */
4179 static void
4180 nxge_m_getfactaddr(void *arg, uint_t naddr, uint8_t *addr)
4181 {
4182 	nxge_t		*nxgep = arg;
4183 	nxge_mmac_t	*mmac_info;
4184 	int		i;
4185 
4186 	mutex_enter(nxgep->genlock);
4187 
4188 	mmac_info = &nxgep->nxge_mmac_info;
4189 	ASSERT(naddr == mmac_info->num_factory_mmac);
4190 
4191 	for (i = 0; i < naddr; i++) {
4192 		bcopy(mmac_info->factory_mac_pool[i + 1],
4193 		    addr + i * MAXMACADDRLEN, ETHERADDRL);
4194 	}
4195 
4196 	mutex_exit(nxgep->genlock);
4197 }
4198 
4199 
4200 static boolean_t
4201 nxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
4202 {
4203 	nxge_t *nxgep = arg;
4204 	uint32_t *txflags = cap_data;
4205 
4206 	switch (cap) {
4207 	case MAC_CAPAB_HCKSUM:
4208 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4209 		    "==> nxge_m_getcapab: checksum %d", nxge_cksum_offload));
4210 		if (nxge_cksum_offload <= 1) {
4211 			*txflags = HCKSUM_INET_PARTIAL;
4212 		}
4213 		break;
4214 
4215 	case MAC_CAPAB_MULTIFACTADDR: {
4216 		mac_capab_multifactaddr_t	*mfacp = cap_data;
4217 
4218 		mutex_enter(nxgep->genlock);
4219 		mfacp->mcm_naddr = nxgep->nxge_mmac_info.num_factory_mmac;
4220 		mfacp->mcm_getaddr = nxge_m_getfactaddr;
4221 		mutex_exit(nxgep->genlock);
4222 		break;
4223 	}
4224 
4225 	case MAC_CAPAB_LSO: {
4226 		mac_capab_lso_t *cap_lso = cap_data;
4227 
4228 		if (nxgep->soft_lso_enable) {
4229 			if (nxge_cksum_offload <= 1) {
4230 				cap_lso->lso_flags = LSO_TX_BASIC_TCP_IPV4;
4231 				if (nxge_lso_max > NXGE_LSO_MAXLEN) {
4232 					nxge_lso_max = NXGE_LSO_MAXLEN;
4233 				}
4234 				cap_lso->lso_basic_tcp_ipv4.lso_max =
4235 				    nxge_lso_max;
4236 			}
4237 			break;
4238 		} else {
4239 			return (B_FALSE);
4240 		}
4241 	}
4242 
4243 	case MAC_CAPAB_RINGS: {
4244 		mac_capab_rings_t	*cap_rings = cap_data;
4245 		p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
4246 
4247 		mutex_enter(nxgep->genlock);
4248 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
4249 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4250 			cap_rings->mr_rnum = p_cfgp->max_rdcs;
4251 			cap_rings->mr_rget = nxge_fill_ring;
4252 			cap_rings->mr_gnum = p_cfgp->max_rdc_grpids;
4253 			cap_rings->mr_gget = nxge_hio_group_get;
4254 			cap_rings->mr_gaddring = nxge_group_add_ring;
4255 			cap_rings->mr_gremring = nxge_group_rem_ring;
4256 
4257 			NXGE_DEBUG_MSG((nxgep, RX_CTL,
4258 			    "==> nxge_m_getcapab: rx nrings[%d] ngroups[%d]",
4259 			    p_cfgp->max_rdcs, p_cfgp->max_rdc_grpids));
4260 		} else {
4261 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4262 			cap_rings->mr_rnum = p_cfgp->tdc.count;
4263 			cap_rings->mr_rget = nxge_fill_ring;
4264 			if (isLDOMservice(nxgep)) {
4265 				/* share capable */
4266 				/* Do not report the default ring: hence -1 */
4267 				cap_rings->mr_gnum =
4268 				    NXGE_MAX_TDC_GROUPS / nxgep->nports - 1;
4269 			} else {
4270 				cap_rings->mr_gnum = 0;
4271 			}
4272 
4273 			cap_rings->mr_gget = nxge_hio_group_get;
4274 			cap_rings->mr_gaddring = nxge_group_add_ring;
4275 			cap_rings->mr_gremring = nxge_group_rem_ring;
4276 
4277 			NXGE_DEBUG_MSG((nxgep, TX_CTL,
4278 			    "==> nxge_m_getcapab: tx rings # of rings %d",
4279 			    p_cfgp->tdc.count));
4280 		}
4281 		mutex_exit(nxgep->genlock);
4282 		break;
4283 	}
4284 
4285 #if defined(sun4v)
4286 	case MAC_CAPAB_SHARES: {
4287 		mac_capab_share_t *mshares = (mac_capab_share_t *)cap_data;
4288 
4289 		/*
4290 		 * Only the service domain driver responds to
4291 		 * this capability request.
4292 		 */
4293 		mutex_enter(nxgep->genlock);
4294 		if (isLDOMservice(nxgep)) {
4295 			mshares->ms_snum = 3;
4296 			mshares->ms_handle = (void *)nxgep;
4297 			mshares->ms_salloc = nxge_hio_share_alloc;
4298 			mshares->ms_sfree = nxge_hio_share_free;
4299 			mshares->ms_sadd = nxge_hio_share_add_group;
4300 			mshares->ms_sremove = nxge_hio_share_rem_group;
4301 			mshares->ms_squery = nxge_hio_share_query;
4302 			mshares->ms_sbind = nxge_hio_share_bind;
4303 			mshares->ms_sunbind = nxge_hio_share_unbind;
4304 			mutex_exit(nxgep->genlock);
4305 		} else {
4306 			mutex_exit(nxgep->genlock);
4307 			return (B_FALSE);
4308 		}
4309 		break;
4310 	}
4311 #endif
4312 	default:
4313 		return (B_FALSE);
4314 	}
4315 	return (B_TRUE);
4316 }
4317 
4318 static boolean_t
4319 nxge_param_locked(mac_prop_id_t pr_num)
4320 {
4321 	/*
4322 	 * All adv_* parameters are locked (read-only) while
4323 	 * the device is in any sort of loopback mode ...
4324 	 */
4325 	switch (pr_num) {
4326 		case MAC_PROP_ADV_1000FDX_CAP:
4327 		case MAC_PROP_EN_1000FDX_CAP:
4328 		case MAC_PROP_ADV_1000HDX_CAP:
4329 		case MAC_PROP_EN_1000HDX_CAP:
4330 		case MAC_PROP_ADV_100FDX_CAP:
4331 		case MAC_PROP_EN_100FDX_CAP:
4332 		case MAC_PROP_ADV_100HDX_CAP:
4333 		case MAC_PROP_EN_100HDX_CAP:
4334 		case MAC_PROP_ADV_10FDX_CAP:
4335 		case MAC_PROP_EN_10FDX_CAP:
4336 		case MAC_PROP_ADV_10HDX_CAP:
4337 		case MAC_PROP_EN_10HDX_CAP:
4338 		case MAC_PROP_AUTONEG:
4339 		case MAC_PROP_FLOWCTRL:
4340 			return (B_TRUE);
4341 	}
4342 	return (B_FALSE);
4343 }
4344 
4345 /*
4346  * callback functions for set/get of properties
4347  */
4348 static int
4349 nxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4350     uint_t pr_valsize, const void *pr_val)
4351 {
4352 	nxge_t		*nxgep = barg;
4353 	p_nxge_param_t	param_arr;
4354 	p_nxge_stats_t	statsp;
4355 	int		err = 0;
4356 	uint8_t		val;
4357 	uint32_t	cur_mtu, new_mtu, old_framesize;
4358 	link_flowctrl_t	fl;
4359 
4360 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_setprop"));
4361 	param_arr = nxgep->param_arr;
4362 	statsp = nxgep->statsp;
4363 	mutex_enter(nxgep->genlock);
4364 	if (statsp->port_stats.lb_mode != nxge_lb_normal &&
4365 	    nxge_param_locked(pr_num)) {
4366 		/*
4367 		 * All adv_* parameters are locked (read-only)
4368 		 * while the device is in any sort of loopback mode.
4369 		 */
4370 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4371 		    "==> nxge_m_setprop: loopback mode: read only"));
4372 		mutex_exit(nxgep->genlock);
4373 		return (EBUSY);
4374 	}
4375 
4376 	val = *(uint8_t *)pr_val;
4377 	switch (pr_num) {
4378 		case MAC_PROP_EN_1000FDX_CAP:
4379 			nxgep->param_en_1000fdx = val;
4380 			param_arr[param_anar_1000fdx].value = val;
4381 
4382 			goto reprogram;
4383 
4384 		case MAC_PROP_EN_100FDX_CAP:
4385 			nxgep->param_en_100fdx = val;
4386 			param_arr[param_anar_100fdx].value = val;
4387 
4388 			goto reprogram;
4389 
4390 		case MAC_PROP_EN_10FDX_CAP:
4391 			nxgep->param_en_10fdx = val;
4392 			param_arr[param_anar_10fdx].value = val;
4393 
4394 			goto reprogram;
4395 
4396 		case MAC_PROP_EN_1000HDX_CAP:
4397 		case MAC_PROP_EN_100HDX_CAP:
4398 		case MAC_PROP_EN_10HDX_CAP:
4399 		case MAC_PROP_ADV_1000FDX_CAP:
4400 		case MAC_PROP_ADV_1000HDX_CAP:
4401 		case MAC_PROP_ADV_100FDX_CAP:
4402 		case MAC_PROP_ADV_100HDX_CAP:
4403 		case MAC_PROP_ADV_10FDX_CAP:
4404 		case MAC_PROP_ADV_10HDX_CAP:
4405 		case MAC_PROP_STATUS:
4406 		case MAC_PROP_SPEED:
4407 		case MAC_PROP_DUPLEX:
4408 			err = EINVAL; /* cannot set read-only properties */
4409 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4410 			    "==> nxge_m_setprop:  read only property %d",
4411 			    pr_num));
4412 			break;
4413 
4414 		case MAC_PROP_AUTONEG:
4415 			param_arr[param_autoneg].value = val;
4416 
4417 			goto reprogram;
4418 
4419 		case MAC_PROP_MTU:
4420 			cur_mtu = nxgep->mac.default_mtu;
4421 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
4422 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4423 			    "==> nxge_m_setprop: set MTU: %d is_jumbo %d",
4424 			    new_mtu, nxgep->mac.is_jumbo));
4425 
4426 			if (new_mtu == cur_mtu) {
4427 				err = 0;
4428 				break;
4429 			}
4430 			if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
4431 				err = EBUSY;
4432 				break;
4433 			}
4434 			if (new_mtu < NXGE_DEFAULT_MTU ||
4435 			    new_mtu > NXGE_MAXIMUM_MTU) {
4436 				err = EINVAL;
4437 				break;
4438 			}
4439 
4440 			if ((new_mtu > NXGE_DEFAULT_MTU) &&
4441 			    !nxgep->mac.is_jumbo) {
4442 				err = EINVAL;
4443 				break;
4444 			}
4445 
4446 			old_framesize = (uint32_t)nxgep->mac.maxframesize;
4447 			nxgep->mac.maxframesize = (uint16_t)
4448 			    (new_mtu + NXGE_EHEADER_VLAN_CRC);
4449 			if (nxge_mac_set_framesize(nxgep)) {
4450 				nxgep->mac.maxframesize =
4451 				    (uint16_t)old_framesize;
4452 				err = EINVAL;
4453 				break;
4454 			}
4455 
4456 			err = mac_maxsdu_update(nxgep->mach, new_mtu);
4457 			if (err) {
4458 				nxgep->mac.maxframesize =
4459 				    (uint16_t)old_framesize;
4460 				err = EINVAL;
4461 				break;
4462 			}
4463 
4464 			nxgep->mac.default_mtu = new_mtu;
4465 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4466 			    "==> nxge_m_setprop: set MTU: %d maxframe %d",
4467 			    new_mtu, nxgep->mac.maxframesize));
4468 			break;
4469 
4470 		case MAC_PROP_FLOWCTRL:
4471 			bcopy(pr_val, &fl, sizeof (fl));
4472 			switch (fl) {
4473 			default:
4474 				err = EINVAL;
4475 				break;
4476 
4477 			case LINK_FLOWCTRL_NONE:
4478 				param_arr[param_anar_pause].value = 0;
4479 				break;
4480 
4481 			case LINK_FLOWCTRL_RX:
4482 				param_arr[param_anar_pause].value = 1;
4483 				break;
4484 
4485 			case LINK_FLOWCTRL_TX:
4486 			case LINK_FLOWCTRL_BI:
4487 				err = EINVAL;
4488 				break;
4489 			}
4490 
4491 reprogram:
4492 			if (err == 0) {
4493 				if (!nxge_param_link_update(nxgep)) {
4494 					err = EINVAL;
4495 				}
4496 			}
4497 			break;
4498 		case MAC_PROP_PRIVATE:
4499 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4500 			    "==> nxge_m_setprop: private property"));
4501 			err = nxge_set_priv_prop(nxgep, pr_name, pr_valsize,
4502 			    pr_val);
4503 			break;
4504 
4505 		default:
4506 			err = ENOTSUP;
4507 			break;
4508 	}
4509 
4510 	mutex_exit(nxgep->genlock);
4511 
4512 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4513 	    "<== nxge_m_setprop (return %d)", err));
4514 	return (err);
4515 }
4516 
4517 static int
4518 nxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4519     uint_t pr_flags, uint_t pr_valsize, void *pr_val, uint_t *perm)
4520 {
4521 	nxge_t 		*nxgep = barg;
4522 	p_nxge_param_t	param_arr = nxgep->param_arr;
4523 	p_nxge_stats_t	statsp = nxgep->statsp;
4524 	int		err = 0;
4525 	link_flowctrl_t	fl;
4526 	uint64_t	tmp = 0;
4527 	link_state_t	ls;
4528 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4529 
4530 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4531 	    "==> nxge_m_getprop: pr_num %d", pr_num));
4532 
4533 	if (pr_valsize == 0)
4534 		return (EINVAL);
4535 
4536 	*perm = MAC_PROP_PERM_RW;
4537 
4538 	if ((is_default) && (pr_num != MAC_PROP_PRIVATE)) {
4539 		err = nxge_get_def_val(nxgep, pr_num, pr_valsize, pr_val);
4540 		return (err);
4541 	}
4542 
4543 	bzero(pr_val, pr_valsize);
4544 	switch (pr_num) {
4545 		case MAC_PROP_DUPLEX:
4546 			*perm = MAC_PROP_PERM_READ;
4547 			*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
4548 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4549 			    "==> nxge_m_getprop: duplex mode %d",
4550 			    *(uint8_t *)pr_val));
4551 			break;
4552 
4553 		case MAC_PROP_SPEED:
4554 			if (pr_valsize < sizeof (uint64_t))
4555 				return (EINVAL);
4556 			*perm = MAC_PROP_PERM_READ;
4557 			tmp = statsp->mac_stats.link_speed * 1000000ull;
4558 			bcopy(&tmp, pr_val, sizeof (tmp));
4559 			break;
4560 
4561 		case MAC_PROP_STATUS:
4562 			if (pr_valsize < sizeof (link_state_t))
4563 				return (EINVAL);
4564 			*perm = MAC_PROP_PERM_READ;
4565 			if (!statsp->mac_stats.link_up)
4566 				ls = LINK_STATE_DOWN;
4567 			else
4568 				ls = LINK_STATE_UP;
4569 			bcopy(&ls, pr_val, sizeof (ls));
4570 			break;
4571 
4572 		case MAC_PROP_AUTONEG:
4573 			*(uint8_t *)pr_val =
4574 			    param_arr[param_autoneg].value;
4575 			break;
4576 
4577 		case MAC_PROP_FLOWCTRL:
4578 			if (pr_valsize < sizeof (link_flowctrl_t))
4579 				return (EINVAL);
4580 
4581 			fl = LINK_FLOWCTRL_NONE;
4582 			if (param_arr[param_anar_pause].value) {
4583 				fl = LINK_FLOWCTRL_RX;
4584 			}
4585 			bcopy(&fl, pr_val, sizeof (fl));
4586 			break;
4587 
4588 		case MAC_PROP_ADV_1000FDX_CAP:
4589 			*perm = MAC_PROP_PERM_READ;
4590 			*(uint8_t *)pr_val =
4591 			    param_arr[param_anar_1000fdx].value;
4592 			break;
4593 
4594 		case MAC_PROP_EN_1000FDX_CAP:
4595 			*(uint8_t *)pr_val = nxgep->param_en_1000fdx;
4596 			break;
4597 
4598 		case MAC_PROP_ADV_100FDX_CAP:
4599 			*perm = MAC_PROP_PERM_READ;
4600 			*(uint8_t *)pr_val =
4601 			    param_arr[param_anar_100fdx].value;
4602 			break;
4603 
4604 		case MAC_PROP_EN_100FDX_CAP:
4605 			*(uint8_t *)pr_val = nxgep->param_en_100fdx;
4606 			break;
4607 
4608 		case MAC_PROP_ADV_10FDX_CAP:
4609 			*perm = MAC_PROP_PERM_READ;
4610 			*(uint8_t *)pr_val =
4611 			    param_arr[param_anar_10fdx].value;
4612 			break;
4613 
4614 		case MAC_PROP_EN_10FDX_CAP:
4615 			*(uint8_t *)pr_val = nxgep->param_en_10fdx;
4616 			break;
4617 
4618 		case MAC_PROP_EN_1000HDX_CAP:
4619 		case MAC_PROP_EN_100HDX_CAP:
4620 		case MAC_PROP_EN_10HDX_CAP:
4621 		case MAC_PROP_ADV_1000HDX_CAP:
4622 		case MAC_PROP_ADV_100HDX_CAP:
4623 		case MAC_PROP_ADV_10HDX_CAP:
4624 			err = ENOTSUP;
4625 			break;
4626 
4627 		case MAC_PROP_PRIVATE:
4628 			err = nxge_get_priv_prop(nxgep, pr_name, pr_flags,
4629 			    pr_valsize, pr_val, perm);
4630 			break;
4631 		default:
4632 			err = EINVAL;
4633 			break;
4634 	}
4635 
4636 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_getprop"));
4637 
4638 	return (err);
4639 }
4640 
4641 /* ARGSUSED */
4642 static int
4643 nxge_set_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_valsize,
4644     const void *pr_val)
4645 {
4646 	p_nxge_param_t	param_arr = nxgep->param_arr;
4647 	int		err = 0;
4648 	long		result;
4649 
4650 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4651 	    "==> nxge_set_priv_prop: name %s", pr_name));
4652 
4653 	if (strcmp(pr_name, "_accept_jumbo") == 0) {
4654 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4655 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4656 		    "<== nxge_set_priv_prop: name %s "
4657 		    "pr_val %s result %d "
4658 		    "param %d is_jumbo %d",
4659 		    pr_name, pr_val, result,
4660 		    param_arr[param_accept_jumbo].value,
4661 		    nxgep->mac.is_jumbo));
4662 
4663 		if (result > 1 || result < 0) {
4664 			err = EINVAL;
4665 		} else {
4666 			if (nxgep->mac.is_jumbo ==
4667 			    (uint32_t)result) {
4668 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4669 				    "no change (%d %d)",
4670 				    nxgep->mac.is_jumbo,
4671 				    result));
4672 				return (0);
4673 			}
4674 		}
4675 
4676 		param_arr[param_accept_jumbo].value = result;
4677 		nxgep->mac.is_jumbo = B_FALSE;
4678 		if (result) {
4679 			nxgep->mac.is_jumbo = B_TRUE;
4680 		}
4681 
4682 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4683 		    "<== nxge_set_priv_prop: name %s (value %d) is_jumbo %d",
4684 		    pr_name, result, nxgep->mac.is_jumbo));
4685 
4686 		return (err);
4687 	}
4688 
4689 	/* Blanking */
4690 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
4691 		err = nxge_param_rx_intr_time(nxgep, NULL, NULL,
4692 		    (char *)pr_val,
4693 		    (caddr_t)&param_arr[param_rxdma_intr_time]);
4694 		if (err) {
4695 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4696 			    "<== nxge_set_priv_prop: "
4697 			    "unable to set (%s)", pr_name));
4698 			err = EINVAL;
4699 		} else {
4700 			err = 0;
4701 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4702 			    "<== nxge_set_priv_prop: "
4703 			    "set (%s)", pr_name));
4704 		}
4705 
4706 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4707 		    "<== nxge_set_priv_prop: name %s (value %d)",
4708 		    pr_name, result));
4709 
4710 		return (err);
4711 	}
4712 
4713 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
4714 		err = nxge_param_rx_intr_pkts(nxgep, NULL, NULL,
4715 		    (char *)pr_val,
4716 		    (caddr_t)&param_arr[param_rxdma_intr_pkts]);
4717 		if (err) {
4718 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4719 			    "<== nxge_set_priv_prop: "
4720 			    "unable to set (%s)", pr_name));
4721 			err = EINVAL;
4722 		} else {
4723 			err = 0;
4724 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4725 			    "<== nxge_set_priv_prop: "
4726 			    "set (%s)", pr_name));
4727 		}
4728 
4729 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4730 		    "<== nxge_set_priv_prop: name %s (value %d)",
4731 		    pr_name, result));
4732 
4733 		return (err);
4734 	}
4735 
4736 	/* Classification */
4737 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
4738 		if (pr_val == NULL) {
4739 			err = EINVAL;
4740 			return (err);
4741 		}
4742 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4743 
4744 		err = nxge_param_set_ip_opt(nxgep, NULL,
4745 		    NULL, (char *)pr_val,
4746 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
4747 
4748 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4749 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4750 		    pr_name, result));
4751 
4752 		return (err);
4753 	}
4754 
4755 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
4756 		if (pr_val == NULL) {
4757 			err = EINVAL;
4758 			return (err);
4759 		}
4760 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4761 
4762 		err = nxge_param_set_ip_opt(nxgep, NULL,
4763 		    NULL, (char *)pr_val,
4764 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
4765 
4766 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4767 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4768 		    pr_name, result));
4769 
4770 		return (err);
4771 	}
4772 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
4773 		if (pr_val == NULL) {
4774 			err = EINVAL;
4775 			return (err);
4776 		}
4777 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4778 
4779 		err = nxge_param_set_ip_opt(nxgep, NULL,
4780 		    NULL, (char *)pr_val,
4781 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
4782 
4783 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4784 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4785 		    pr_name, result));
4786 
4787 		return (err);
4788 	}
4789 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
4790 		if (pr_val == NULL) {
4791 			err = EINVAL;
4792 			return (err);
4793 		}
4794 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4795 
4796 		err = nxge_param_set_ip_opt(nxgep, NULL,
4797 		    NULL, (char *)pr_val,
4798 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
4799 
4800 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4801 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4802 		    pr_name, result));
4803 
4804 		return (err);
4805 	}
4806 
4807 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
4808 		if (pr_val == NULL) {
4809 			err = EINVAL;
4810 			return (err);
4811 		}
4812 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4813 
4814 		err = nxge_param_set_ip_opt(nxgep, NULL,
4815 		    NULL, (char *)pr_val,
4816 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
4817 
4818 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4819 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4820 		    pr_name, result));
4821 
4822 		return (err);
4823 	}
4824 
4825 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
4826 		if (pr_val == NULL) {
4827 			err = EINVAL;
4828 			return (err);
4829 		}
4830 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4831 
4832 		err = nxge_param_set_ip_opt(nxgep, NULL,
4833 		    NULL, (char *)pr_val,
4834 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
4835 
4836 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4837 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4838 		    pr_name, result));
4839 
4840 		return (err);
4841 	}
4842 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
4843 		if (pr_val == NULL) {
4844 			err = EINVAL;
4845 			return (err);
4846 		}
4847 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4848 
4849 		err = nxge_param_set_ip_opt(nxgep, NULL,
4850 		    NULL, (char *)pr_val,
4851 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
4852 
4853 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4854 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4855 		    pr_name, result));
4856 
4857 		return (err);
4858 	}
4859 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
4860 		if (pr_val == NULL) {
4861 			err = EINVAL;
4862 			return (err);
4863 		}
4864 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4865 
4866 		err = nxge_param_set_ip_opt(nxgep, NULL,
4867 		    NULL, (char *)pr_val,
4868 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
4869 
4870 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4871 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4872 		    pr_name, result));
4873 
4874 		return (err);
4875 	}
4876 
4877 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
4878 		if (pr_val == NULL) {
4879 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4880 			    "==> nxge_set_priv_prop: name %s (null)", pr_name));
4881 			err = EINVAL;
4882 			return (err);
4883 		}
4884 
4885 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4886 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4887 		    "<== nxge_set_priv_prop: name %s "
4888 		    "(lso %d pr_val %s value %d)",
4889 		    pr_name, nxgep->soft_lso_enable, pr_val, result));
4890 
4891 		if (result > 1 || result < 0) {
4892 			err = EINVAL;
4893 		} else {
4894 			if (nxgep->soft_lso_enable == (uint32_t)result) {
4895 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4896 				    "no change (%d %d)",
4897 				    nxgep->soft_lso_enable, result));
4898 				return (0);
4899 			}
4900 		}
4901 
4902 		nxgep->soft_lso_enable = (int)result;
4903 
4904 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4905 		    "<== nxge_set_priv_prop: name %s (value %d)",
4906 		    pr_name, result));
4907 
4908 		return (err);
4909 	}
4910 	/*
4911 	 * Commands like "ndd -set /dev/nxge0 adv_10gfdx_cap 1" cause the
4912 	 * following code to be executed.
4913 	 */
4914 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
4915 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4916 		    (caddr_t)&param_arr[param_anar_10gfdx]);
4917 		return (err);
4918 	}
4919 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
4920 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4921 		    (caddr_t)&param_arr[param_anar_pause]);
4922 		return (err);
4923 	}
4924 
4925 	return (EINVAL);
4926 }
4927 
4928 static int
4929 nxge_get_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_flags,
4930     uint_t pr_valsize, void *pr_val, uint_t *perm)
4931 {
4932 	p_nxge_param_t	param_arr = nxgep->param_arr;
4933 	char		valstr[MAXNAMELEN];
4934 	int		err = EINVAL;
4935 	uint_t		strsize;
4936 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4937 
4938 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4939 	    "==> nxge_get_priv_prop: property %s", pr_name));
4940 
4941 	/* function number */
4942 	if (strcmp(pr_name, "_function_number") == 0) {
4943 		if (is_default)
4944 			return (ENOTSUP);
4945 		*perm = MAC_PROP_PERM_READ;
4946 		(void) snprintf(valstr, sizeof (valstr), "%d",
4947 		    nxgep->function_num);
4948 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4949 		    "==> nxge_get_priv_prop: name %s "
4950 		    "(value %d valstr %s)",
4951 		    pr_name, nxgep->function_num, valstr));
4952 
4953 		err = 0;
4954 		goto done;
4955 	}
4956 
4957 	/* Neptune firmware version */
4958 	if (strcmp(pr_name, "_fw_version") == 0) {
4959 		if (is_default)
4960 			return (ENOTSUP);
4961 		*perm = MAC_PROP_PERM_READ;
4962 		(void) snprintf(valstr, sizeof (valstr), "%s",
4963 		    nxgep->vpd_info.ver);
4964 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4965 		    "==> nxge_get_priv_prop: name %s "
4966 		    "(value %d valstr %s)",
4967 		    pr_name, nxgep->vpd_info.ver, valstr));
4968 
4969 		err = 0;
4970 		goto done;
4971 	}
4972 
4973 	/* port PHY mode */
4974 	if (strcmp(pr_name, "_port_mode") == 0) {
4975 		if (is_default)
4976 			return (ENOTSUP);
4977 		*perm = MAC_PROP_PERM_READ;
4978 		switch (nxgep->mac.portmode) {
4979 		case PORT_1G_COPPER:
4980 			(void) snprintf(valstr, sizeof (valstr), "1G copper %s",
4981 			    nxgep->hot_swappable_phy ?
4982 			    "[Hot Swappable]" : "");
4983 			break;
4984 		case PORT_1G_FIBER:
4985 			(void) snprintf(valstr, sizeof (valstr), "1G fiber %s",
4986 			    nxgep->hot_swappable_phy ?
4987 			    "[hot swappable]" : "");
4988 			break;
4989 		case PORT_10G_COPPER:
4990 			(void) snprintf(valstr, sizeof (valstr),
4991 			    "10G copper %s",
4992 			    nxgep->hot_swappable_phy ?
4993 			    "[hot swappable]" : "");
4994 			break;
4995 		case PORT_10G_FIBER:
4996 			(void) snprintf(valstr, sizeof (valstr), "10G fiber %s",
4997 			    nxgep->hot_swappable_phy ?
4998 			    "[hot swappable]" : "");
4999 			break;
5000 		case PORT_10G_SERDES:
5001 			(void) snprintf(valstr, sizeof (valstr),
5002 			    "10G serdes %s", nxgep->hot_swappable_phy ?
5003 			    "[hot swappable]" : "");
5004 			break;
5005 		case PORT_1G_SERDES:
5006 			(void) snprintf(valstr, sizeof (valstr), "1G serdes %s",
5007 			    nxgep->hot_swappable_phy ?
5008 			    "[hot swappable]" : "");
5009 			break;
5010 		case PORT_1G_TN1010:
5011 			(void) snprintf(valstr, sizeof (valstr),
5012 			    "1G TN1010 copper %s", nxgep->hot_swappable_phy ?
5013 			    "[hot swappable]" : "");
5014 			break;
5015 		case PORT_10G_TN1010:
5016 			(void) snprintf(valstr, sizeof (valstr),
5017 			    "10G TN1010 copper %s", nxgep->hot_swappable_phy ?
5018 			    "[hot swappable]" : "");
5019 			break;
5020 		case PORT_1G_RGMII_FIBER:
5021 			(void) snprintf(valstr, sizeof (valstr),
5022 			    "1G rgmii fiber %s", nxgep->hot_swappable_phy ?
5023 			    "[hot swappable]" : "");
5024 			break;
5025 		case PORT_HSP_MODE:
5026 			(void) snprintf(valstr, sizeof (valstr),
5027 			    "phy not present[hot swappable]");
5028 			break;
5029 		default:
5030 			(void) snprintf(valstr, sizeof (valstr), "unknown %s",
5031 			    nxgep->hot_swappable_phy ?
5032 			    "[hot swappable]" : "");
5033 			break;
5034 		}
5035 
5036 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5037 		    "==> nxge_get_priv_prop: name %s (value %s)",
5038 		    pr_name, valstr));
5039 
5040 		err = 0;
5041 		goto done;
5042 	}
5043 
5044 	/* Hot swappable PHY */
5045 	if (strcmp(pr_name, "_hot_swap_phy") == 0) {
5046 		if (is_default)
5047 			return (ENOTSUP);
5048 		*perm = MAC_PROP_PERM_READ;
5049 		(void) snprintf(valstr, sizeof (valstr), "%s",
5050 		    nxgep->hot_swappable_phy ?
5051 		    "yes" : "no");
5052 
5053 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5054 		    "==> nxge_get_priv_prop: name %s "
5055 		    "(value %d valstr %s)",
5056 		    pr_name, nxgep->hot_swappable_phy, valstr));
5057 
5058 		err = 0;
5059 		goto done;
5060 	}
5061 
5062 
5063 	/* accept jumbo */
5064 	if (strcmp(pr_name, "_accept_jumbo") == 0) {
5065 		if (is_default)
5066 			(void) snprintf(valstr, sizeof (valstr),  "%d", 0);
5067 		else
5068 			(void) snprintf(valstr, sizeof (valstr),
5069 			    "%d", nxgep->mac.is_jumbo);
5070 		err = 0;
5071 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5072 		    "==> nxge_get_priv_prop: name %s (value %d (%d, %d))",
5073 		    pr_name,
5074 		    (uint32_t)param_arr[param_accept_jumbo].value,
5075 		    nxgep->mac.is_jumbo,
5076 		    nxge_jumbo_enable));
5077 
5078 		goto done;
5079 	}
5080 
5081 	/* Receive Interrupt Blanking Parameters */
5082 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
5083 		err = 0;
5084 		if (is_default) {
5085 			(void) snprintf(valstr, sizeof (valstr),
5086 			    "%d", RXDMA_RCR_TO_DEFAULT);
5087 			goto done;
5088 		}
5089 
5090 		(void) snprintf(valstr, sizeof (valstr), "%d",
5091 		    nxgep->intr_timeout);
5092 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5093 		    "==> nxge_get_priv_prop: name %s (value %d)",
5094 		    pr_name,
5095 		    (uint32_t)nxgep->intr_timeout));
5096 		goto done;
5097 	}
5098 
5099 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
5100 		err = 0;
5101 		if (is_default) {
5102 			(void) snprintf(valstr, sizeof (valstr),
5103 			    "%d", RXDMA_RCR_PTHRES_DEFAULT);
5104 			goto done;
5105 		}
5106 		(void) snprintf(valstr, sizeof (valstr), "%d",
5107 		    nxgep->intr_threshold);
5108 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5109 		    "==> nxge_get_priv_prop: name %s (value %d)",
5110 		    pr_name, (uint32_t)nxgep->intr_threshold));
5111 
5112 		goto done;
5113 	}
5114 
5115 	/* Classification and Load Distribution Configuration */
5116 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
5117 		if (is_default) {
5118 			(void) snprintf(valstr, sizeof (valstr), "%x",
5119 			    NXGE_CLASS_FLOW_GEN_SERVER);
5120 			err = 0;
5121 			goto done;
5122 		}
5123 		err = nxge_dld_get_ip_opt(nxgep,
5124 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
5125 
5126 		(void) snprintf(valstr, sizeof (valstr), "%x",
5127 		    (int)param_arr[param_class_opt_ipv4_tcp].value);
5128 
5129 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5130 		    "==> nxge_get_priv_prop: %s", valstr));
5131 		goto done;
5132 	}
5133 
5134 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
5135 		if (is_default) {
5136 			(void) snprintf(valstr, sizeof (valstr), "%x",
5137 			    NXGE_CLASS_FLOW_GEN_SERVER);
5138 			err = 0;
5139 			goto done;
5140 		}
5141 		err = nxge_dld_get_ip_opt(nxgep,
5142 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
5143 
5144 		(void) snprintf(valstr, sizeof (valstr), "%x",
5145 		    (int)param_arr[param_class_opt_ipv4_udp].value);
5146 
5147 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5148 		    "==> nxge_get_priv_prop: %s", valstr));
5149 		goto done;
5150 	}
5151 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
5152 		if (is_default) {
5153 			(void) snprintf(valstr, sizeof (valstr), "%x",
5154 			    NXGE_CLASS_FLOW_GEN_SERVER);
5155 			err = 0;
5156 			goto done;
5157 		}
5158 		err = nxge_dld_get_ip_opt(nxgep,
5159 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
5160 
5161 		(void) snprintf(valstr, sizeof (valstr), "%x",
5162 		    (int)param_arr[param_class_opt_ipv4_ah].value);
5163 
5164 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5165 		    "==> nxge_get_priv_prop: %s", valstr));
5166 		goto done;
5167 	}
5168 
5169 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
5170 		if (is_default) {
5171 			(void) snprintf(valstr, sizeof (valstr), "%x",
5172 			    NXGE_CLASS_FLOW_GEN_SERVER);
5173 			err = 0;
5174 			goto done;
5175 		}
5176 		err = nxge_dld_get_ip_opt(nxgep,
5177 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
5178 
5179 		(void) snprintf(valstr, sizeof (valstr), "%x",
5180 		    (int)param_arr[param_class_opt_ipv4_sctp].value);
5181 
5182 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5183 		    "==> nxge_get_priv_prop: %s", valstr));
5184 		goto done;
5185 	}
5186 
5187 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
5188 		if (is_default) {
5189 			(void) snprintf(valstr, sizeof (valstr), "%x",
5190 			    NXGE_CLASS_FLOW_GEN_SERVER);
5191 			err = 0;
5192 			goto done;
5193 		}
5194 		err = nxge_dld_get_ip_opt(nxgep,
5195 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
5196 
5197 		(void) snprintf(valstr, sizeof (valstr), "%x",
5198 		    (int)param_arr[param_class_opt_ipv6_tcp].value);
5199 
5200 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5201 		    "==> nxge_get_priv_prop: %s", valstr));
5202 		goto done;
5203 	}
5204 
5205 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
5206 		if (is_default) {
5207 			(void) snprintf(valstr, sizeof (valstr), "%x",
5208 			    NXGE_CLASS_FLOW_GEN_SERVER);
5209 			err = 0;
5210 			goto done;
5211 		}
5212 		err = nxge_dld_get_ip_opt(nxgep,
5213 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
5214 
5215 		(void) snprintf(valstr, sizeof (valstr), "%x",
5216 		    (int)param_arr[param_class_opt_ipv6_udp].value);
5217 
5218 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5219 		    "==> nxge_get_priv_prop: %s", valstr));
5220 		goto done;
5221 	}
5222 
5223 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
5224 		if (is_default) {
5225 			(void) snprintf(valstr, sizeof (valstr), "%x",
5226 			    NXGE_CLASS_FLOW_GEN_SERVER);
5227 			err = 0;
5228 			goto done;
5229 		}
5230 		err = nxge_dld_get_ip_opt(nxgep,
5231 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
5232 
5233 		(void) snprintf(valstr, sizeof (valstr), "%x",
5234 		    (int)param_arr[param_class_opt_ipv6_ah].value);
5235 
5236 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5237 		    "==> nxge_get_priv_prop: %s", valstr));
5238 		goto done;
5239 	}
5240 
5241 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
5242 		if (is_default) {
5243 			(void) snprintf(valstr, sizeof (valstr), "%x",
5244 			    NXGE_CLASS_FLOW_GEN_SERVER);
5245 			err = 0;
5246 			goto done;
5247 		}
5248 		err = nxge_dld_get_ip_opt(nxgep,
5249 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
5250 
5251 		(void) snprintf(valstr, sizeof (valstr), "%x",
5252 		    (int)param_arr[param_class_opt_ipv6_sctp].value);
5253 
5254 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5255 		    "==> nxge_get_priv_prop: %s", valstr));
5256 		goto done;
5257 	}
5258 
5259 	/* Software LSO */
5260 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
5261 		if (is_default) {
5262 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5263 			err = 0;
5264 			goto done;
5265 		}
5266 		(void) snprintf(valstr, sizeof (valstr),
5267 		    "%d", nxgep->soft_lso_enable);
5268 		err = 0;
5269 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5270 		    "==> nxge_get_priv_prop: name %s (value %d)",
5271 		    pr_name, nxgep->soft_lso_enable));
5272 
5273 		goto done;
5274 	}
5275 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5276 		err = 0;
5277 		if (is_default ||
5278 		    nxgep->param_arr[param_anar_10gfdx].value != 0) {
5279 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5280 			goto done;
5281 		} else {
5282 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5283 			goto done;
5284 		}
5285 	}
5286 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5287 		err = 0;
5288 		if (is_default ||
5289 		    nxgep->param_arr[param_anar_pause].value != 0) {
5290 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5291 			goto done;
5292 		} else {
5293 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5294 			goto done;
5295 		}
5296 	}
5297 
5298 done:
5299 	if (err == 0) {
5300 		strsize = (uint_t)strlen(valstr);
5301 		if (pr_valsize < strsize) {
5302 			err = ENOBUFS;
5303 		} else {
5304 			(void) strlcpy(pr_val, valstr, pr_valsize);
5305 		}
5306 	}
5307 
5308 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5309 	    "<== nxge_get_priv_prop: return %d", err));
5310 	return (err);
5311 }
5312 
5313 /*
5314  * Module loading and removing entry points.
5315  */
5316 
5317 DDI_DEFINE_STREAM_OPS(nxge_dev_ops, nulldev, nulldev, nxge_attach, nxge_detach,
5318     nodev, NULL, D_MP, NULL, nxge_quiesce);
5319 
5320 #define	NXGE_DESC_VER		"Sun NIU 10Gb Ethernet"
5321 
5322 /*
5323  * Module linkage information for the kernel.
5324  */
5325 static struct modldrv 	nxge_modldrv = {
5326 	&mod_driverops,
5327 	NXGE_DESC_VER,
5328 	&nxge_dev_ops
5329 };
5330 
5331 static struct modlinkage modlinkage = {
5332 	MODREV_1, (void *) &nxge_modldrv, NULL
5333 };
5334 
5335 int
5336 _init(void)
5337 {
5338 	int		status;
5339 
5340 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
5341 	mac_init_ops(&nxge_dev_ops, "nxge");
5342 	status = ddi_soft_state_init(&nxge_list, sizeof (nxge_t), 0);
5343 	if (status != 0) {
5344 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL,
5345 		    "failed to init device soft state"));
5346 		goto _init_exit;
5347 	}
5348 	status = mod_install(&modlinkage);
5349 	if (status != 0) {
5350 		ddi_soft_state_fini(&nxge_list);
5351 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL, "Mod install failed"));
5352 		goto _init_exit;
5353 	}
5354 
5355 	MUTEX_INIT(&nxge_common_lock, NULL, MUTEX_DRIVER, NULL);
5356 
5357 _init_exit:
5358 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_init status = 0x%X", status));
5359 
5360 	return (status);
5361 }
5362 
5363 int
5364 _fini(void)
5365 {
5366 	int		status;
5367 
5368 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
5369 
5370 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
5371 
5372 	if (nxge_mblks_pending)
5373 		return (EBUSY);
5374 
5375 	status = mod_remove(&modlinkage);
5376 	if (status != DDI_SUCCESS) {
5377 		NXGE_DEBUG_MSG((NULL, MOD_CTL,
5378 		    "Module removal failed 0x%08x",
5379 		    status));
5380 		goto _fini_exit;
5381 	}
5382 
5383 	mac_fini_ops(&nxge_dev_ops);
5384 
5385 	ddi_soft_state_fini(&nxge_list);
5386 
5387 	MUTEX_DESTROY(&nxge_common_lock);
5388 _fini_exit:
5389 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_fini status = 0x%08x", status));
5390 
5391 	return (status);
5392 }
5393 
5394 int
5395 _info(struct modinfo *modinfop)
5396 {
5397 	int		status;
5398 
5399 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
5400 	status = mod_info(&modlinkage, modinfop);
5401 	NXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
5402 
5403 	return (status);
5404 }
5405 
5406 /*ARGSUSED*/
5407 static int
5408 nxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5409 {
5410 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5411 	p_nxge_t		nxgep = rhp->nxgep;
5412 	uint32_t		channel;
5413 	p_tx_ring_t		ring;
5414 
5415 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5416 	ring = nxgep->tx_rings->rings[channel];
5417 
5418 	MUTEX_ENTER(&ring->lock);
5419 	ring->tx_ring_handle = rhp->ring_handle;
5420 	MUTEX_EXIT(&ring->lock);
5421 
5422 	return (0);
5423 }
5424 
5425 static void
5426 nxge_tx_ring_stop(mac_ring_driver_t rdriver)
5427 {
5428 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5429 	p_nxge_t		nxgep = rhp->nxgep;
5430 	uint32_t		channel;
5431 	p_tx_ring_t		ring;
5432 
5433 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5434 	ring = nxgep->tx_rings->rings[channel];
5435 
5436 	MUTEX_ENTER(&ring->lock);
5437 	ring->tx_ring_handle = (mac_ring_handle_t)NULL;
5438 	MUTEX_EXIT(&ring->lock);
5439 }
5440 
5441 static int
5442 nxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5443 {
5444 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5445 	p_nxge_t		nxgep = rhp->nxgep;
5446 	uint32_t		channel;
5447 	p_rx_rcr_ring_t		ring;
5448 	int			i;
5449 
5450 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5451 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5452 
5453 	MUTEX_ENTER(&ring->lock);
5454 
5455 	if (nxgep->rx_channel_started[channel] == B_TRUE) {
5456 		MUTEX_EXIT(&ring->lock);
5457 		return (0);
5458 	}
5459 
5460 	/* set rcr_ring */
5461 	for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5462 		if ((nxgep->ldgvp->ldvp[i].is_rxdma == 1) &&
5463 		    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5464 			ring->ldvp = &nxgep->ldgvp->ldvp[i];
5465 			ring->ldgp = nxgep->ldgvp->ldvp[i].ldgp;
5466 		}
5467 	}
5468 
5469 	nxgep->rx_channel_started[channel] = B_TRUE;
5470 	ring->rcr_mac_handle = rhp->ring_handle;
5471 	ring->rcr_gen_num = mr_gen_num;
5472 	MUTEX_EXIT(&ring->lock);
5473 
5474 	return (0);
5475 }
5476 
5477 static void
5478 nxge_rx_ring_stop(mac_ring_driver_t rdriver)
5479 {
5480 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5481 	p_nxge_t		nxgep = rhp->nxgep;
5482 	uint32_t		channel;
5483 	p_rx_rcr_ring_t		ring;
5484 
5485 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5486 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5487 
5488 	MUTEX_ENTER(&ring->lock);
5489 	nxgep->rx_channel_started[channel] = B_FALSE;
5490 	ring->rcr_mac_handle = NULL;
5491 	MUTEX_EXIT(&ring->lock);
5492 }
5493 
5494 /*
5495  * Callback funtion for MAC layer to register all rings.
5496  */
5497 static void
5498 nxge_fill_ring(void *arg, mac_ring_type_t rtype, const int rg_index,
5499     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
5500 {
5501 	p_nxge_t		nxgep = (p_nxge_t)arg;
5502 	p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
5503 
5504 	NXGE_DEBUG_MSG((nxgep, TX_CTL,
5505 	    "==> nxge_fill_ring 0x%x index %d", rtype, index));
5506 
5507 	switch (rtype) {
5508 	case MAC_RING_TYPE_TX: {
5509 		p_nxge_ring_handle_t	rhandlep;
5510 
5511 		NXGE_DEBUG_MSG((nxgep, TX_CTL,
5512 		    "==> nxge_fill_ring (TX) 0x%x index %d ntdcs %d",
5513 		    rtype, index, p_cfgp->tdc.count));
5514 
5515 		ASSERT((index >= 0) && (index < p_cfgp->tdc.count));
5516 		rhandlep = &nxgep->tx_ring_handles[index];
5517 		rhandlep->nxgep = nxgep;
5518 		rhandlep->index = index;
5519 		rhandlep->ring_handle = rh;
5520 
5521 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5522 		infop->mri_start = nxge_tx_ring_start;
5523 		infop->mri_stop = nxge_tx_ring_stop;
5524 		infop->mri_tx = nxge_tx_ring_send;
5525 
5526 		break;
5527 	}
5528 	case MAC_RING_TYPE_RX: {
5529 		p_nxge_ring_handle_t	rhandlep;
5530 		int			nxge_rindex;
5531 		mac_intr_t		nxge_mac_intr;
5532 
5533 		NXGE_DEBUG_MSG((nxgep, RX_CTL,
5534 		    "==> nxge_fill_ring (RX) 0x%x index %d nrdcs %d",
5535 		    rtype, index, p_cfgp->max_rdcs));
5536 
5537 		/*
5538 		 * 'index' is the ring index within the group.
5539 		 * Find the ring index in the nxge instance.
5540 		 */
5541 		nxge_rindex = nxge_get_rxring_index(nxgep, rg_index, index);
5542 
5543 		ASSERT((nxge_rindex >= 0) && (nxge_rindex < p_cfgp->max_rdcs));
5544 		rhandlep = &nxgep->rx_ring_handles[nxge_rindex];
5545 		rhandlep->nxgep = nxgep;
5546 		rhandlep->index = nxge_rindex;
5547 		rhandlep->ring_handle = rh;
5548 
5549 		/*
5550 		 * Entrypoint to enable interrupt (disable poll) and
5551 		 * disable interrupt (enable poll).
5552 		 */
5553 		nxge_mac_intr.mi_handle = (mac_intr_handle_t)rhandlep;
5554 		nxge_mac_intr.mi_enable = (mac_intr_enable_t)nxge_disable_poll;
5555 		nxge_mac_intr.mi_disable = (mac_intr_disable_t)nxge_enable_poll;
5556 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5557 		infop->mri_start = nxge_rx_ring_start;
5558 		infop->mri_stop = nxge_rx_ring_stop;
5559 		infop->mri_intr = nxge_mac_intr; /* ??? */
5560 		infop->mri_poll = nxge_rx_poll;
5561 
5562 		break;
5563 	}
5564 	default:
5565 		break;
5566 	}
5567 
5568 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_fill_ring 0x%x",
5569 	    rtype));
5570 }
5571 
5572 static void
5573 nxge_group_add_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5574     mac_ring_type_t type)
5575 {
5576 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5577 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5578 	nxge_t			*nxge;
5579 	nxge_grp_t		*grp;
5580 	nxge_rdc_grp_t		*rdc_grp;
5581 	uint16_t		channel;	/* device-wise ring id */
5582 	int			dev_gindex;
5583 	int			rv;
5584 
5585 	nxge = rgroup->nxgep;
5586 
5587 	switch (type) {
5588 	case MAC_RING_TYPE_TX:
5589 		/*
5590 		 * nxge_grp_dc_add takes a channel number which is a
5591 		 * "devise" ring ID.
5592 		 */
5593 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5594 
5595 		/*
5596 		 * Remove the ring from the default group
5597 		 */
5598 		if (rgroup->gindex != 0) {
5599 			(void) nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5600 		}
5601 
5602 		/*
5603 		 * nxge->tx_set.group[] is an array of groups indexed by
5604 		 * a "port" group ID.
5605 		 */
5606 		grp = nxge->tx_set.group[rgroup->gindex];
5607 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5608 		if (rv != 0) {
5609 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5610 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5611 		}
5612 		break;
5613 
5614 	case MAC_RING_TYPE_RX:
5615 		/*
5616 		 * nxge->rx_set.group[] is an array of groups indexed by
5617 		 * a "port" group ID.
5618 		 */
5619 		grp = nxge->rx_set.group[rgroup->gindex];
5620 
5621 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5622 		    rgroup->gindex;
5623 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5624 
5625 		/*
5626 		 * nxge_grp_dc_add takes a channel number which is a
5627 		 * "devise" ring ID.
5628 		 */
5629 		channel = nxge->pt_config.hw_config.start_rdc + rhandle->index;
5630 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_RX, channel);
5631 		if (rv != 0) {
5632 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5633 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5634 		}
5635 
5636 		rdc_grp->map |= (1 << channel);
5637 		rdc_grp->max_rdcs++;
5638 
5639 		(void) nxge_init_fzc_rdc_tbl(nxge, rgroup->rdctbl);
5640 		break;
5641 	}
5642 }
5643 
5644 static void
5645 nxge_group_rem_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5646     mac_ring_type_t type)
5647 {
5648 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5649 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5650 	nxge_t			*nxge;
5651 	uint16_t		channel;	/* device-wise ring id */
5652 	nxge_rdc_grp_t		*rdc_grp;
5653 	int			dev_gindex;
5654 
5655 	nxge = rgroup->nxgep;
5656 
5657 	switch (type) {
5658 	case MAC_RING_TYPE_TX:
5659 		dev_gindex = nxge->pt_config.hw_config.def_mac_txdma_grpid +
5660 		    rgroup->gindex;
5661 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5662 		nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5663 
5664 		/*
5665 		 * Add the ring back to the default group
5666 		 */
5667 		if (rgroup->gindex != 0) {
5668 			nxge_grp_t *grp;
5669 			grp = nxge->tx_set.group[0];
5670 			(void) nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5671 		}
5672 		break;
5673 
5674 	case MAC_RING_TYPE_RX:
5675 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5676 		    rgroup->gindex;
5677 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5678 		channel = rdc_grp->start_rdc + rhandle->index;
5679 		nxge_grp_dc_remove(nxge, VP_BOUND_RX, channel);
5680 
5681 		rdc_grp->map &= ~(1 << channel);
5682 		rdc_grp->max_rdcs--;
5683 
5684 		(void) nxge_init_fzc_rdc_tbl(nxge, rgroup->rdctbl);
5685 		break;
5686 	}
5687 }
5688 
5689 
5690 /*ARGSUSED*/
5691 static nxge_status_t
5692 nxge_add_intrs(p_nxge_t nxgep)
5693 {
5694 
5695 	int		intr_types;
5696 	int		type = 0;
5697 	int		ddi_status = DDI_SUCCESS;
5698 	nxge_status_t	status = NXGE_OK;
5699 
5700 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs"));
5701 
5702 	nxgep->nxge_intr_type.intr_registered = B_FALSE;
5703 	nxgep->nxge_intr_type.intr_enabled = B_FALSE;
5704 	nxgep->nxge_intr_type.msi_intx_cnt = 0;
5705 	nxgep->nxge_intr_type.intr_added = 0;
5706 	nxgep->nxge_intr_type.niu_msi_enable = B_FALSE;
5707 	nxgep->nxge_intr_type.intr_type = 0;
5708 
5709 	if (nxgep->niu_type == N2_NIU) {
5710 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5711 	} else if (nxge_msi_enable) {
5712 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5713 	}
5714 
5715 	/* Get the supported interrupt types */
5716 	if ((ddi_status = ddi_intr_get_supported_types(nxgep->dip, &intr_types))
5717 	    != DDI_SUCCESS) {
5718 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_intrs: "
5719 		    "ddi_intr_get_supported_types failed: status 0x%08x",
5720 		    ddi_status));
5721 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5722 	}
5723 	nxgep->nxge_intr_type.intr_types = intr_types;
5724 
5725 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5726 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5727 
5728 	/*
5729 	 * Solaris MSIX is not supported yet. use MSI for now.
5730 	 * nxge_msi_enable (1):
5731 	 *	1 - MSI		2 - MSI-X	others - FIXED
5732 	 */
5733 	switch (nxge_msi_enable) {
5734 	default:
5735 		type = DDI_INTR_TYPE_FIXED;
5736 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5737 		    "use fixed (intx emulation) type %08x",
5738 		    type));
5739 		break;
5740 
5741 	case 2:
5742 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5743 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5744 		if (intr_types & DDI_INTR_TYPE_MSIX) {
5745 			type = DDI_INTR_TYPE_MSIX;
5746 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5747 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5748 			    type));
5749 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
5750 			type = DDI_INTR_TYPE_MSI;
5751 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5752 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5753 			    type));
5754 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5755 			type = DDI_INTR_TYPE_FIXED;
5756 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5757 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5758 			    type));
5759 		}
5760 		break;
5761 
5762 	case 1:
5763 		if (intr_types & DDI_INTR_TYPE_MSI) {
5764 			type = DDI_INTR_TYPE_MSI;
5765 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5766 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5767 			    type));
5768 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
5769 			type = DDI_INTR_TYPE_MSIX;
5770 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5771 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5772 			    type));
5773 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5774 			type = DDI_INTR_TYPE_FIXED;
5775 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5776 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5777 			    type));
5778 		}
5779 	}
5780 
5781 	nxgep->nxge_intr_type.intr_type = type;
5782 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
5783 	    type == DDI_INTR_TYPE_FIXED) &&
5784 	    nxgep->nxge_intr_type.niu_msi_enable) {
5785 		if ((status = nxge_add_intrs_adv(nxgep)) != DDI_SUCCESS) {
5786 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5787 			    " nxge_add_intrs: "
5788 			    " nxge_add_intrs_adv failed: status 0x%08x",
5789 			    status));
5790 			return (status);
5791 		} else {
5792 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5793 			    "interrupts registered : type %d", type));
5794 			nxgep->nxge_intr_type.intr_registered = B_TRUE;
5795 
5796 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
5797 			    "\nAdded advanced nxge add_intr_adv "
5798 			    "intr type 0x%x\n", type));
5799 
5800 			return (status);
5801 		}
5802 	}
5803 
5804 	if (!nxgep->nxge_intr_type.intr_registered) {
5805 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_add_intrs: "
5806 		    "failed to register interrupts"));
5807 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5808 	}
5809 
5810 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_add_intrs"));
5811 	return (status);
5812 }
5813 
5814 static nxge_status_t
5815 nxge_add_intrs_adv(p_nxge_t nxgep)
5816 {
5817 	int		intr_type;
5818 	p_nxge_intr_t	intrp;
5819 
5820 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv"));
5821 
5822 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5823 	intr_type = intrp->intr_type;
5824 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv: type 0x%x",
5825 	    intr_type));
5826 
5827 	switch (intr_type) {
5828 	case DDI_INTR_TYPE_MSI: /* 0x2 */
5829 	case DDI_INTR_TYPE_MSIX: /* 0x4 */
5830 		return (nxge_add_intrs_adv_type(nxgep, intr_type));
5831 
5832 	case DDI_INTR_TYPE_FIXED: /* 0x1 */
5833 		return (nxge_add_intrs_adv_type_fix(nxgep, intr_type));
5834 
5835 	default:
5836 		return (NXGE_ERROR);
5837 	}
5838 }
5839 
5840 
5841 /*ARGSUSED*/
5842 static nxge_status_t
5843 nxge_add_intrs_adv_type(p_nxge_t nxgep, uint32_t int_type)
5844 {
5845 	dev_info_t		*dip = nxgep->dip;
5846 	p_nxge_ldg_t		ldgp;
5847 	p_nxge_intr_t		intrp;
5848 	uint_t			*inthandler;
5849 	void			*arg1, *arg2;
5850 	int			behavior;
5851 	int			nintrs, navail, nrequest;
5852 	int			nactual, nrequired;
5853 	int			inum = 0;
5854 	int			x, y;
5855 	int			ddi_status = DDI_SUCCESS;
5856 	nxge_status_t		status = NXGE_OK;
5857 
5858 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type"));
5859 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5860 	intrp->start_inum = 0;
5861 
5862 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
5863 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
5864 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5865 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
5866 		    "nintrs: %d", ddi_status, nintrs));
5867 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5868 	}
5869 
5870 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
5871 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
5872 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5873 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
5874 		    "nintrs: %d", ddi_status, navail));
5875 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5876 	}
5877 
5878 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
5879 	    "ddi_intr_get_navail() returned: nintrs %d, navail %d",
5880 	    nintrs, navail));
5881 
5882 	/* PSARC/2007/453 MSI-X interrupt limit override */
5883 	if (int_type == DDI_INTR_TYPE_MSIX) {
5884 		nrequest = nxge_create_msi_property(nxgep);
5885 		if (nrequest < navail) {
5886 			navail = nrequest;
5887 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5888 			    "nxge_add_intrs_adv_type: nintrs %d "
5889 			    "navail %d (nrequest %d)",
5890 			    nintrs, navail, nrequest));
5891 		}
5892 	}
5893 
5894 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
5895 		/* MSI must be power of 2 */
5896 		if ((navail & 16) == 16) {
5897 			navail = 16;
5898 		} else if ((navail & 8) == 8) {
5899 			navail = 8;
5900 		} else if ((navail & 4) == 4) {
5901 			navail = 4;
5902 		} else if ((navail & 2) == 2) {
5903 			navail = 2;
5904 		} else {
5905 			navail = 1;
5906 		}
5907 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5908 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
5909 		    "navail %d", nintrs, navail));
5910 	}
5911 
5912 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
5913 	    DDI_INTR_ALLOC_NORMAL);
5914 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
5915 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
5916 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
5917 	    navail, &nactual, behavior);
5918 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
5919 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5920 		    " ddi_intr_alloc() failed: %d",
5921 		    ddi_status));
5922 		kmem_free(intrp->htable, intrp->intr_size);
5923 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5924 	}
5925 
5926 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
5927 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
5928 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5929 		    " ddi_intr_get_pri() failed: %d",
5930 		    ddi_status));
5931 		/* Free already allocated interrupts */
5932 		for (y = 0; y < nactual; y++) {
5933 			(void) ddi_intr_free(intrp->htable[y]);
5934 		}
5935 
5936 		kmem_free(intrp->htable, intrp->intr_size);
5937 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5938 	}
5939 
5940 	nrequired = 0;
5941 	switch (nxgep->niu_type) {
5942 	default:
5943 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
5944 		break;
5945 
5946 	case N2_NIU:
5947 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
5948 		break;
5949 	}
5950 
5951 	if (status != NXGE_OK) {
5952 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5953 		    "nxge_add_intrs_adv_typ:nxge_ldgv_init "
5954 		    "failed: 0x%x", status));
5955 		/* Free already allocated interrupts */
5956 		for (y = 0; y < nactual; y++) {
5957 			(void) ddi_intr_free(intrp->htable[y]);
5958 		}
5959 
5960 		kmem_free(intrp->htable, intrp->intr_size);
5961 		return (status);
5962 	}
5963 
5964 	ldgp = nxgep->ldgvp->ldgp;
5965 	for (x = 0; x < nrequired; x++, ldgp++) {
5966 		ldgp->vector = (uint8_t)x;
5967 		ldgp->intdata = SID_DATA(ldgp->func, x);
5968 		arg1 = ldgp->ldvp;
5969 		arg2 = nxgep;
5970 		if (ldgp->nldvs == 1) {
5971 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
5972 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5973 			    "nxge_add_intrs_adv_type: "
5974 			    "arg1 0x%x arg2 0x%x: "
5975 			    "1-1 int handler (entry %d intdata 0x%x)\n",
5976 			    arg1, arg2,
5977 			    x, ldgp->intdata));
5978 		} else if (ldgp->nldvs > 1) {
5979 			inthandler = (uint_t *)ldgp->sys_intr_handler;
5980 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5981 			    "nxge_add_intrs_adv_type: "
5982 			    "arg1 0x%x arg2 0x%x: "
5983 			    "nldevs %d int handler "
5984 			    "(entry %d intdata 0x%x)\n",
5985 			    arg1, arg2,
5986 			    ldgp->nldvs, x, ldgp->intdata));
5987 		}
5988 
5989 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5990 		    "==> nxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
5991 		    "htable 0x%llx", x, intrp->htable[x]));
5992 
5993 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
5994 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
5995 		    != DDI_SUCCESS) {
5996 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5997 			    "==> nxge_add_intrs_adv_type: failed #%d "
5998 			    "status 0x%x", x, ddi_status));
5999 			for (y = 0; y < intrp->intr_added; y++) {
6000 				(void) ddi_intr_remove_handler(
6001 				    intrp->htable[y]);
6002 			}
6003 			/* Free already allocated intr */
6004 			for (y = 0; y < nactual; y++) {
6005 				(void) ddi_intr_free(intrp->htable[y]);
6006 			}
6007 			kmem_free(intrp->htable, intrp->intr_size);
6008 
6009 			(void) nxge_ldgv_uninit(nxgep);
6010 
6011 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6012 		}
6013 		intrp->intr_added++;
6014 	}
6015 
6016 	intrp->msi_intx_cnt = nactual;
6017 
6018 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6019 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
6020 	    navail, nactual,
6021 	    intrp->msi_intx_cnt,
6022 	    intrp->intr_added));
6023 
6024 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6025 
6026 	(void) nxge_intr_ldgv_init(nxgep);
6027 
6028 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type"));
6029 
6030 	return (status);
6031 }
6032 
6033 /*ARGSUSED*/
6034 static nxge_status_t
6035 nxge_add_intrs_adv_type_fix(p_nxge_t nxgep, uint32_t int_type)
6036 {
6037 	dev_info_t		*dip = nxgep->dip;
6038 	p_nxge_ldg_t		ldgp;
6039 	p_nxge_intr_t		intrp;
6040 	uint_t			*inthandler;
6041 	void			*arg1, *arg2;
6042 	int			behavior;
6043 	int			nintrs, navail;
6044 	int			nactual, nrequired;
6045 	int			inum = 0;
6046 	int			x, y;
6047 	int			ddi_status = DDI_SUCCESS;
6048 	nxge_status_t		status = NXGE_OK;
6049 
6050 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type_fix"));
6051 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6052 	intrp->start_inum = 0;
6053 
6054 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
6055 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
6056 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6057 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
6058 		    "nintrs: %d", status, nintrs));
6059 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6060 	}
6061 
6062 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
6063 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
6064 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6065 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
6066 		    "nintrs: %d", ddi_status, navail));
6067 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6068 	}
6069 
6070 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
6071 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
6072 	    nintrs, navail));
6073 
6074 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
6075 	    DDI_INTR_ALLOC_NORMAL);
6076 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
6077 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
6078 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
6079 	    navail, &nactual, behavior);
6080 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6081 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6082 		    " ddi_intr_alloc() failed: %d",
6083 		    ddi_status));
6084 		kmem_free(intrp->htable, intrp->intr_size);
6085 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6086 	}
6087 
6088 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6089 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6090 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6091 		    " ddi_intr_get_pri() failed: %d",
6092 		    ddi_status));
6093 		/* Free already allocated interrupts */
6094 		for (y = 0; y < nactual; y++) {
6095 			(void) ddi_intr_free(intrp->htable[y]);
6096 		}
6097 
6098 		kmem_free(intrp->htable, intrp->intr_size);
6099 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6100 	}
6101 
6102 	nrequired = 0;
6103 	switch (nxgep->niu_type) {
6104 	default:
6105 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6106 		break;
6107 
6108 	case N2_NIU:
6109 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6110 		break;
6111 	}
6112 
6113 	if (status != NXGE_OK) {
6114 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6115 		    "nxge_add_intrs_adv_type_fix:nxge_ldgv_init "
6116 		    "failed: 0x%x", status));
6117 		/* Free already allocated interrupts */
6118 		for (y = 0; y < nactual; y++) {
6119 			(void) ddi_intr_free(intrp->htable[y]);
6120 		}
6121 
6122 		kmem_free(intrp->htable, intrp->intr_size);
6123 		return (status);
6124 	}
6125 
6126 	ldgp = nxgep->ldgvp->ldgp;
6127 	for (x = 0; x < nrequired; x++, ldgp++) {
6128 		ldgp->vector = (uint8_t)x;
6129 		if (nxgep->niu_type != N2_NIU) {
6130 			ldgp->intdata = SID_DATA(ldgp->func, x);
6131 		}
6132 
6133 		arg1 = ldgp->ldvp;
6134 		arg2 = nxgep;
6135 		if (ldgp->nldvs == 1) {
6136 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
6137 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6138 			    "nxge_add_intrs_adv_type_fix: "
6139 			    "1-1 int handler(%d) ldg %d ldv %d "
6140 			    "arg1 $%p arg2 $%p\n",
6141 			    x, ldgp->ldg, ldgp->ldvp->ldv,
6142 			    arg1, arg2));
6143 		} else if (ldgp->nldvs > 1) {
6144 			inthandler = (uint_t *)ldgp->sys_intr_handler;
6145 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6146 			    "nxge_add_intrs_adv_type_fix: "
6147 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
6148 			    "arg1 0x%016llx arg2 0x%016llx\n",
6149 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
6150 			    arg1, arg2));
6151 		}
6152 
6153 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6154 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6155 		    != DDI_SUCCESS) {
6156 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6157 			    "==> nxge_add_intrs_adv_type_fix: failed #%d "
6158 			    "status 0x%x", x, ddi_status));
6159 			for (y = 0; y < intrp->intr_added; y++) {
6160 				(void) ddi_intr_remove_handler(
6161 				    intrp->htable[y]);
6162 			}
6163 			for (y = 0; y < nactual; y++) {
6164 				(void) ddi_intr_free(intrp->htable[y]);
6165 			}
6166 			/* Free already allocated intr */
6167 			kmem_free(intrp->htable, intrp->intr_size);
6168 
6169 			(void) nxge_ldgv_uninit(nxgep);
6170 
6171 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6172 		}
6173 		intrp->intr_added++;
6174 	}
6175 
6176 	intrp->msi_intx_cnt = nactual;
6177 
6178 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6179 
6180 	status = nxge_intr_ldgv_init(nxgep);
6181 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type_fix"));
6182 
6183 	return (status);
6184 }
6185 
6186 static void
6187 nxge_remove_intrs(p_nxge_t nxgep)
6188 {
6189 	int		i, inum;
6190 	p_nxge_intr_t	intrp;
6191 
6192 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs"));
6193 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6194 	if (!intrp->intr_registered) {
6195 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6196 		    "<== nxge_remove_intrs: interrupts not registered"));
6197 		return;
6198 	}
6199 
6200 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs:advanced"));
6201 
6202 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6203 		(void) ddi_intr_block_disable(intrp->htable,
6204 		    intrp->intr_added);
6205 	} else {
6206 		for (i = 0; i < intrp->intr_added; i++) {
6207 			(void) ddi_intr_disable(intrp->htable[i]);
6208 		}
6209 	}
6210 
6211 	for (inum = 0; inum < intrp->intr_added; inum++) {
6212 		if (intrp->htable[inum]) {
6213 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
6214 		}
6215 	}
6216 
6217 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
6218 		if (intrp->htable[inum]) {
6219 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6220 			    "nxge_remove_intrs: ddi_intr_free inum %d "
6221 			    "msi_intx_cnt %d intr_added %d",
6222 			    inum,
6223 			    intrp->msi_intx_cnt,
6224 			    intrp->intr_added));
6225 
6226 			(void) ddi_intr_free(intrp->htable[inum]);
6227 		}
6228 	}
6229 
6230 	kmem_free(intrp->htable, intrp->intr_size);
6231 	intrp->intr_registered = B_FALSE;
6232 	intrp->intr_enabled = B_FALSE;
6233 	intrp->msi_intx_cnt = 0;
6234 	intrp->intr_added = 0;
6235 
6236 	(void) nxge_ldgv_uninit(nxgep);
6237 
6238 	(void) ddi_prop_remove(DDI_DEV_T_NONE, nxgep->dip,
6239 	    "#msix-request");
6240 
6241 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_intrs"));
6242 }
6243 
6244 /*ARGSUSED*/
6245 static void
6246 nxge_intrs_enable(p_nxge_t nxgep)
6247 {
6248 	p_nxge_intr_t	intrp;
6249 	int		i;
6250 	int		status;
6251 
6252 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable"));
6253 
6254 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6255 
6256 	if (!intrp->intr_registered) {
6257 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_intrs_enable: "
6258 		    "interrupts are not registered"));
6259 		return;
6260 	}
6261 
6262 	if (intrp->intr_enabled) {
6263 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6264 		    "<== nxge_intrs_enable: already enabled"));
6265 		return;
6266 	}
6267 
6268 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6269 		status = ddi_intr_block_enable(intrp->htable,
6270 		    intrp->intr_added);
6271 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6272 		    "block enable - status 0x%x total inums #%d\n",
6273 		    status, intrp->intr_added));
6274 	} else {
6275 		for (i = 0; i < intrp->intr_added; i++) {
6276 			status = ddi_intr_enable(intrp->htable[i]);
6277 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6278 			    "ddi_intr_enable:enable - status 0x%x "
6279 			    "total inums %d enable inum #%d\n",
6280 			    status, intrp->intr_added, i));
6281 			if (status == DDI_SUCCESS) {
6282 				intrp->intr_enabled = B_TRUE;
6283 			}
6284 		}
6285 	}
6286 
6287 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_enable"));
6288 }
6289 
6290 /*ARGSUSED*/
6291 static void
6292 nxge_intrs_disable(p_nxge_t nxgep)
6293 {
6294 	p_nxge_intr_t	intrp;
6295 	int		i;
6296 
6297 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_disable"));
6298 
6299 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6300 
6301 	if (!intrp->intr_registered) {
6302 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable: "
6303 		    "interrupts are not registered"));
6304 		return;
6305 	}
6306 
6307 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6308 		(void) ddi_intr_block_disable(intrp->htable,
6309 		    intrp->intr_added);
6310 	} else {
6311 		for (i = 0; i < intrp->intr_added; i++) {
6312 			(void) ddi_intr_disable(intrp->htable[i]);
6313 		}
6314 	}
6315 
6316 	intrp->intr_enabled = B_FALSE;
6317 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable"));
6318 }
6319 
6320 static nxge_status_t
6321 nxge_mac_register(p_nxge_t nxgep)
6322 {
6323 	mac_register_t *macp;
6324 	int		status;
6325 
6326 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_mac_register"));
6327 
6328 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
6329 		return (NXGE_ERROR);
6330 
6331 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
6332 	macp->m_driver = nxgep;
6333 	macp->m_dip = nxgep->dip;
6334 	macp->m_src_addr = nxgep->ouraddr.ether_addr_octet;
6335 	macp->m_callbacks = &nxge_m_callbacks;
6336 	macp->m_min_sdu = 0;
6337 	nxgep->mac.default_mtu = nxgep->mac.maxframesize -
6338 	    NXGE_EHEADER_VLAN_CRC;
6339 	macp->m_max_sdu = nxgep->mac.default_mtu;
6340 	macp->m_margin = VLAN_TAGSZ;
6341 	macp->m_priv_props = nxge_priv_props;
6342 	macp->m_priv_prop_count = NXGE_MAX_PRIV_PROPS;
6343 	macp->m_v12n = MAC_VIRT_HIO | MAC_VIRT_LEVEL1 | MAC_VIRT_SERIALIZE;
6344 
6345 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
6346 	    "==> nxge_mac_register: instance %d "
6347 	    "max_sdu %d margin %d maxframe %d (header %d)",
6348 	    nxgep->instance,
6349 	    macp->m_max_sdu, macp->m_margin,
6350 	    nxgep->mac.maxframesize,
6351 	    NXGE_EHEADER_VLAN_CRC));
6352 
6353 	status = mac_register(macp, &nxgep->mach);
6354 	mac_free(macp);
6355 
6356 	if (status != 0) {
6357 		cmn_err(CE_WARN,
6358 		    "!nxge_mac_register failed (status %d instance %d)",
6359 		    status, nxgep->instance);
6360 		return (NXGE_ERROR);
6361 	}
6362 
6363 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_mac_register success "
6364 	    "(instance %d)", nxgep->instance));
6365 
6366 	return (NXGE_OK);
6367 }
6368 
6369 void
6370 nxge_err_inject(p_nxge_t nxgep, queue_t *wq, mblk_t *mp)
6371 {
6372 	ssize_t		size;
6373 	mblk_t		*nmp;
6374 	uint8_t		blk_id;
6375 	uint8_t		chan;
6376 	uint32_t	err_id;
6377 	err_inject_t	*eip;
6378 
6379 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_err_inject"));
6380 
6381 	size = 1024;
6382 	nmp = mp->b_cont;
6383 	eip = (err_inject_t *)nmp->b_rptr;
6384 	blk_id = eip->blk_id;
6385 	err_id = eip->err_id;
6386 	chan = eip->chan;
6387 	cmn_err(CE_NOTE, "!blk_id = 0x%x\n", blk_id);
6388 	cmn_err(CE_NOTE, "!err_id = 0x%x\n", err_id);
6389 	cmn_err(CE_NOTE, "!chan = 0x%x\n", chan);
6390 	switch (blk_id) {
6391 	case MAC_BLK_ID:
6392 		break;
6393 	case TXMAC_BLK_ID:
6394 		break;
6395 	case RXMAC_BLK_ID:
6396 		break;
6397 	case MIF_BLK_ID:
6398 		break;
6399 	case IPP_BLK_ID:
6400 		nxge_ipp_inject_err(nxgep, err_id);
6401 		break;
6402 	case TXC_BLK_ID:
6403 		nxge_txc_inject_err(nxgep, err_id);
6404 		break;
6405 	case TXDMA_BLK_ID:
6406 		nxge_txdma_inject_err(nxgep, err_id, chan);
6407 		break;
6408 	case RXDMA_BLK_ID:
6409 		nxge_rxdma_inject_err(nxgep, err_id, chan);
6410 		break;
6411 	case ZCP_BLK_ID:
6412 		nxge_zcp_inject_err(nxgep, err_id);
6413 		break;
6414 	case ESPC_BLK_ID:
6415 		break;
6416 	case FFLP_BLK_ID:
6417 		break;
6418 	case PHY_BLK_ID:
6419 		break;
6420 	case ETHER_SERDES_BLK_ID:
6421 		break;
6422 	case PCIE_SERDES_BLK_ID:
6423 		break;
6424 	case VIR_BLK_ID:
6425 		break;
6426 	}
6427 
6428 	nmp->b_wptr = nmp->b_rptr + size;
6429 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "<== nxge_err_inject"));
6430 
6431 	miocack(wq, mp, (int)size, 0);
6432 }
6433 
6434 static int
6435 nxge_init_common_dev(p_nxge_t nxgep)
6436 {
6437 	p_nxge_hw_list_t	hw_p;
6438 	dev_info_t 		*p_dip;
6439 
6440 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_init_common_device"));
6441 
6442 	p_dip = nxgep->p_dip;
6443 	MUTEX_ENTER(&nxge_common_lock);
6444 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6445 	    "==> nxge_init_common_dev:func # %d",
6446 	    nxgep->function_num));
6447 	/*
6448 	 * Loop through existing per neptune hardware list.
6449 	 */
6450 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6451 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6452 		    "==> nxge_init_common_device:func # %d "
6453 		    "hw_p $%p parent dip $%p",
6454 		    nxgep->function_num,
6455 		    hw_p,
6456 		    p_dip));
6457 		if (hw_p->parent_devp == p_dip) {
6458 			nxgep->nxge_hw_p = hw_p;
6459 			hw_p->ndevs++;
6460 			hw_p->nxge_p[nxgep->function_num] = nxgep;
6461 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6462 			    "==> nxge_init_common_device:func # %d "
6463 			    "hw_p $%p parent dip $%p "
6464 			    "ndevs %d (found)",
6465 			    nxgep->function_num,
6466 			    hw_p,
6467 			    p_dip,
6468 			    hw_p->ndevs));
6469 			break;
6470 		}
6471 	}
6472 
6473 	if (hw_p == NULL) {
6474 
6475 		char **prop_val;
6476 		uint_t prop_len;
6477 		int i;
6478 
6479 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6480 		    "==> nxge_init_common_device:func # %d "
6481 		    "parent dip $%p (new)",
6482 		    nxgep->function_num,
6483 		    p_dip));
6484 		hw_p = kmem_zalloc(sizeof (nxge_hw_list_t), KM_SLEEP);
6485 		hw_p->parent_devp = p_dip;
6486 		hw_p->magic = NXGE_NEPTUNE_MAGIC;
6487 		nxgep->nxge_hw_p = hw_p;
6488 		hw_p->ndevs++;
6489 		hw_p->nxge_p[nxgep->function_num] = nxgep;
6490 		hw_p->next = nxge_hw_list;
6491 		if (nxgep->niu_type == N2_NIU) {
6492 			hw_p->niu_type = N2_NIU;
6493 			hw_p->platform_type = P_NEPTUNE_NIU;
6494 		} else {
6495 			hw_p->niu_type = NIU_TYPE_NONE;
6496 			hw_p->platform_type = P_NEPTUNE_NONE;
6497 		}
6498 
6499 		MUTEX_INIT(&hw_p->nxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
6500 		MUTEX_INIT(&hw_p->nxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
6501 		MUTEX_INIT(&hw_p->nxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
6502 		MUTEX_INIT(&hw_p->nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
6503 
6504 		nxge_hw_list = hw_p;
6505 
6506 		if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, nxgep->dip, 0,
6507 		    "compatible", &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
6508 			for (i = 0; i < prop_len; i++) {
6509 				if ((strcmp((caddr_t)prop_val[i],
6510 				    NXGE_ROCK_COMPATIBLE) == 0)) {
6511 					hw_p->platform_type = P_NEPTUNE_ROCK;
6512 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6513 					    "ROCK hw_p->platform_type %d",
6514 					    hw_p->platform_type));
6515 					break;
6516 				}
6517 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6518 				    "nxge_init_common_dev: read compatible"
6519 				    " property[%d] val[%s]",
6520 				    i, (caddr_t)prop_val[i]));
6521 			}
6522 		}
6523 
6524 		ddi_prop_free(prop_val);
6525 
6526 		(void) nxge_scan_ports_phy(nxgep, nxge_hw_list);
6527 	}
6528 
6529 	MUTEX_EXIT(&nxge_common_lock);
6530 
6531 	nxgep->platform_type = hw_p->platform_type;
6532 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "nxgep->platform_type %d",
6533 	    nxgep->platform_type));
6534 	if (nxgep->niu_type != N2_NIU) {
6535 		nxgep->niu_type = hw_p->niu_type;
6536 	}
6537 
6538 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6539 	    "==> nxge_init_common_device (nxge_hw_list) $%p",
6540 	    nxge_hw_list));
6541 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<== nxge_init_common_device"));
6542 
6543 	return (NXGE_OK);
6544 }
6545 
6546 static void
6547 nxge_uninit_common_dev(p_nxge_t nxgep)
6548 {
6549 	p_nxge_hw_list_t	hw_p, h_hw_p;
6550 	p_nxge_dma_pt_cfg_t	p_dma_cfgp;
6551 	p_nxge_hw_pt_cfg_t	p_cfgp;
6552 	dev_info_t 		*p_dip;
6553 
6554 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_uninit_common_device"));
6555 	if (nxgep->nxge_hw_p == NULL) {
6556 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6557 		    "<== nxge_uninit_common_device (no common)"));
6558 		return;
6559 	}
6560 
6561 	MUTEX_ENTER(&nxge_common_lock);
6562 	h_hw_p = nxge_hw_list;
6563 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6564 		p_dip = hw_p->parent_devp;
6565 		if (nxgep->nxge_hw_p == hw_p &&
6566 		    p_dip == nxgep->p_dip &&
6567 		    nxgep->nxge_hw_p->magic == NXGE_NEPTUNE_MAGIC &&
6568 		    hw_p->magic == NXGE_NEPTUNE_MAGIC) {
6569 
6570 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6571 			    "==> nxge_uninit_common_device:func # %d "
6572 			    "hw_p $%p parent dip $%p "
6573 			    "ndevs %d (found)",
6574 			    nxgep->function_num,
6575 			    hw_p,
6576 			    p_dip,
6577 			    hw_p->ndevs));
6578 
6579 			/*
6580 			 * Release the RDC table, a shared resoruce
6581 			 * of the nxge hardware.  The RDC table was
6582 			 * assigned to this instance of nxge in
6583 			 * nxge_use_cfg_dma_config().
6584 			 */
6585 			if (!isLDOMguest(nxgep)) {
6586 				p_dma_cfgp =
6587 				    (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
6588 				p_cfgp =
6589 				    (p_nxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
6590 				(void) nxge_fzc_rdc_tbl_unbind(nxgep,
6591 				    p_cfgp->def_mac_rxdma_grpid);
6592 
6593 				/* Cleanup any outstanding groups.  */
6594 				nxge_grp_cleanup(nxgep);
6595 			}
6596 
6597 			if (hw_p->ndevs) {
6598 				hw_p->ndevs--;
6599 			}
6600 			hw_p->nxge_p[nxgep->function_num] = NULL;
6601 			if (!hw_p->ndevs) {
6602 				MUTEX_DESTROY(&hw_p->nxge_vlan_lock);
6603 				MUTEX_DESTROY(&hw_p->nxge_tcam_lock);
6604 				MUTEX_DESTROY(&hw_p->nxge_cfg_lock);
6605 				MUTEX_DESTROY(&hw_p->nxge_mdio_lock);
6606 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6607 				    "==> nxge_uninit_common_device: "
6608 				    "func # %d "
6609 				    "hw_p $%p parent dip $%p "
6610 				    "ndevs %d (last)",
6611 				    nxgep->function_num,
6612 				    hw_p,
6613 				    p_dip,
6614 				    hw_p->ndevs));
6615 
6616 				nxge_hio_uninit(nxgep);
6617 
6618 				if (hw_p == nxge_hw_list) {
6619 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6620 					    "==> nxge_uninit_common_device:"
6621 					    "remove head func # %d "
6622 					    "hw_p $%p parent dip $%p "
6623 					    "ndevs %d (head)",
6624 					    nxgep->function_num,
6625 					    hw_p,
6626 					    p_dip,
6627 					    hw_p->ndevs));
6628 					nxge_hw_list = hw_p->next;
6629 				} else {
6630 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6631 					    "==> nxge_uninit_common_device:"
6632 					    "remove middle func # %d "
6633 					    "hw_p $%p parent dip $%p "
6634 					    "ndevs %d (middle)",
6635 					    nxgep->function_num,
6636 					    hw_p,
6637 					    p_dip,
6638 					    hw_p->ndevs));
6639 					h_hw_p->next = hw_p->next;
6640 				}
6641 
6642 				nxgep->nxge_hw_p = NULL;
6643 				KMEM_FREE(hw_p, sizeof (nxge_hw_list_t));
6644 			}
6645 			break;
6646 		} else {
6647 			h_hw_p = hw_p;
6648 		}
6649 	}
6650 
6651 	MUTEX_EXIT(&nxge_common_lock);
6652 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6653 	    "==> nxge_uninit_common_device (nxge_hw_list) $%p",
6654 	    nxge_hw_list));
6655 
6656 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<= nxge_uninit_common_device"));
6657 }
6658 
6659 /*
6660  * Determines the number of ports from the niu_type or the platform type.
6661  * Returns the number of ports, or returns zero on failure.
6662  */
6663 
6664 int
6665 nxge_get_nports(p_nxge_t nxgep)
6666 {
6667 	int	nports = 0;
6668 
6669 	switch (nxgep->niu_type) {
6670 	case N2_NIU:
6671 	case NEPTUNE_2_10GF:
6672 		nports = 2;
6673 		break;
6674 	case NEPTUNE_4_1GC:
6675 	case NEPTUNE_2_10GF_2_1GC:
6676 	case NEPTUNE_1_10GF_3_1GC:
6677 	case NEPTUNE_1_1GC_1_10GF_2_1GC:
6678 	case NEPTUNE_2_10GF_2_1GRF:
6679 		nports = 4;
6680 		break;
6681 	default:
6682 		switch (nxgep->platform_type) {
6683 		case P_NEPTUNE_NIU:
6684 		case P_NEPTUNE_ATLAS_2PORT:
6685 			nports = 2;
6686 			break;
6687 		case P_NEPTUNE_ATLAS_4PORT:
6688 		case P_NEPTUNE_MARAMBA_P0:
6689 		case P_NEPTUNE_MARAMBA_P1:
6690 		case P_NEPTUNE_ROCK:
6691 		case P_NEPTUNE_ALONSO:
6692 			nports = 4;
6693 			break;
6694 		default:
6695 			break;
6696 		}
6697 		break;
6698 	}
6699 
6700 	return (nports);
6701 }
6702 
6703 /*
6704  * The following two functions are to support
6705  * PSARC/2007/453 MSI-X interrupt limit override.
6706  */
6707 static int
6708 nxge_create_msi_property(p_nxge_t nxgep)
6709 {
6710 	int	nmsi;
6711 	extern	int ncpus;
6712 
6713 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==>nxge_create_msi_property"));
6714 
6715 	switch (nxgep->mac.portmode) {
6716 	case PORT_10G_COPPER:
6717 	case PORT_10G_FIBER:
6718 	case PORT_10G_TN1010:
6719 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6720 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6721 		/*
6722 		 * The maximum MSI-X requested will be 8.
6723 		 * If the # of CPUs is less than 8, we will request
6724 		 * # MSI-X based on the # of CPUs (default).
6725 		 */
6726 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6727 		    "==>nxge_create_msi_property (10G): nxge_msix_10g_intrs %d",
6728 		    nxge_msix_10g_intrs));
6729 		if ((nxge_msix_10g_intrs == 0) ||
6730 		    (nxge_msix_10g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6731 			nmsi = NXGE_MSIX_REQUEST_10G;
6732 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6733 			    "==>nxge_create_msi_property (10G): reset to 8"));
6734 		} else {
6735 			nmsi = nxge_msix_10g_intrs;
6736 		}
6737 
6738 		/*
6739 		 * If # of interrupts requested is 8 (default),
6740 		 * the checking of the number of cpus will be
6741 		 * be maintained.
6742 		 */
6743 		if ((nmsi == NXGE_MSIX_REQUEST_10G) &&
6744 		    (ncpus < nmsi)) {
6745 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6746 			    "==>nxge_create_msi_property (10G): reset to 8"));
6747 			nmsi = ncpus;
6748 		}
6749 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6750 		    "==>nxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
6751 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6752 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6753 		break;
6754 
6755 	default:
6756 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6757 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6758 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6759 		    "==>nxge_create_msi_property (1G): nxge_msix_1g_intrs %d",
6760 		    nxge_msix_1g_intrs));
6761 		if ((nxge_msix_1g_intrs == 0) ||
6762 		    (nxge_msix_1g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6763 			nmsi = NXGE_MSIX_REQUEST_1G;
6764 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6765 			    "==>nxge_create_msi_property (1G): reset to 2"));
6766 		} else {
6767 			nmsi = nxge_msix_1g_intrs;
6768 		}
6769 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6770 		    "==>nxge_create_msi_property(1G): exists 0x%x (nmsi %d)",
6771 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6772 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6773 		break;
6774 	}
6775 
6776 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<==nxge_create_msi_property"));
6777 	return (nmsi);
6778 }
6779 
6780 /* ARGSUSED */
6781 static int
6782 nxge_get_def_val(nxge_t *nxgep, mac_prop_id_t pr_num, uint_t pr_valsize,
6783     void *pr_val)
6784 {
6785 	int err = 0;
6786 	link_flowctrl_t fl;
6787 
6788 	switch (pr_num) {
6789 	case MAC_PROP_AUTONEG:
6790 		*(uint8_t *)pr_val = 1;
6791 		break;
6792 	case MAC_PROP_FLOWCTRL:
6793 		if (pr_valsize < sizeof (link_flowctrl_t))
6794 			return (EINVAL);
6795 		fl = LINK_FLOWCTRL_RX;
6796 		bcopy(&fl, pr_val, sizeof (fl));
6797 		break;
6798 	case MAC_PROP_ADV_1000FDX_CAP:
6799 	case MAC_PROP_EN_1000FDX_CAP:
6800 		*(uint8_t *)pr_val = 1;
6801 		break;
6802 	case MAC_PROP_ADV_100FDX_CAP:
6803 	case MAC_PROP_EN_100FDX_CAP:
6804 		*(uint8_t *)pr_val = 1;
6805 		break;
6806 	default:
6807 		err = ENOTSUP;
6808 		break;
6809 	}
6810 	return (err);
6811 }
6812 
6813 
6814 /*
6815  * The following is a software around for the Neptune hardware's
6816  * interrupt bugs; The Neptune hardware may generate spurious interrupts when
6817  * an interrupr handler is removed.
6818  */
6819 #define	NXGE_PCI_PORT_LOGIC_OFFSET	0x98
6820 #define	NXGE_PIM_RESET			(1ULL << 29)
6821 #define	NXGE_GLU_RESET			(1ULL << 30)
6822 #define	NXGE_NIU_RESET			(1ULL << 31)
6823 #define	NXGE_PCI_RESET_ALL		(NXGE_PIM_RESET |	\
6824 					NXGE_GLU_RESET |	\
6825 					NXGE_NIU_RESET)
6826 
6827 #define	NXGE_WAIT_QUITE_TIME		200000
6828 #define	NXGE_WAIT_QUITE_RETRY		40
6829 #define	NXGE_PCI_RESET_WAIT		1000000 /* one second */
6830 
6831 static void
6832 nxge_niu_peu_reset(p_nxge_t nxgep)
6833 {
6834 	uint32_t	rvalue;
6835 	p_nxge_hw_list_t hw_p;
6836 	p_nxge_t	fnxgep;
6837 	int		i, j;
6838 
6839 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_niu_peu_reset"));
6840 	if ((hw_p = nxgep->nxge_hw_p) == NULL) {
6841 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6842 		    "==> nxge_niu_peu_reset: NULL hardware pointer"));
6843 		return;
6844 	}
6845 
6846 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6847 	    "==> nxge_niu_peu_reset: flags 0x%x link timer id %d timer id %d",
6848 	    hw_p->flags, nxgep->nxge_link_poll_timerid,
6849 	    nxgep->nxge_timerid));
6850 
6851 	MUTEX_ENTER(&hw_p->nxge_cfg_lock);
6852 	/*
6853 	 * Make sure other instances from the same hardware
6854 	 * stop sending PIO and in quiescent state.
6855 	 */
6856 	for (i = 0; i < NXGE_MAX_PORTS; i++) {
6857 		fnxgep = hw_p->nxge_p[i];
6858 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6859 		    "==> nxge_niu_peu_reset: checking entry %d "
6860 		    "nxgep $%p", i, fnxgep));
6861 #ifdef	NXGE_DEBUG
6862 		if (fnxgep) {
6863 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6864 			    "==> nxge_niu_peu_reset: entry %d (function %d) "
6865 			    "link timer id %d hw timer id %d",
6866 			    i, fnxgep->function_num,
6867 			    fnxgep->nxge_link_poll_timerid,
6868 			    fnxgep->nxge_timerid));
6869 		}
6870 #endif
6871 		if (fnxgep && fnxgep != nxgep &&
6872 		    (fnxgep->nxge_timerid || fnxgep->nxge_link_poll_timerid)) {
6873 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6874 			    "==> nxge_niu_peu_reset: checking $%p "
6875 			    "(function %d) timer ids",
6876 			    fnxgep, fnxgep->function_num));
6877 			for (j = 0; j < NXGE_WAIT_QUITE_RETRY; j++) {
6878 				NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6879 				    "==> nxge_niu_peu_reset: waiting"));
6880 				NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6881 				if (!fnxgep->nxge_timerid &&
6882 				    !fnxgep->nxge_link_poll_timerid) {
6883 					break;
6884 				}
6885 			}
6886 			NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6887 			if (fnxgep->nxge_timerid ||
6888 			    fnxgep->nxge_link_poll_timerid) {
6889 				MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6890 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6891 				    "<== nxge_niu_peu_reset: cannot reset "
6892 				    "hardware (devices are still in use)"));
6893 				return;
6894 			}
6895 		}
6896 	}
6897 
6898 	if ((hw_p->flags & COMMON_RESET_NIU_PCI) != COMMON_RESET_NIU_PCI) {
6899 		hw_p->flags |= COMMON_RESET_NIU_PCI;
6900 		rvalue = pci_config_get32(nxgep->dev_regs->nxge_pciregh,
6901 		    NXGE_PCI_PORT_LOGIC_OFFSET);
6902 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6903 		    "nxge_niu_peu_reset: read offset 0x%x (%d) "
6904 		    "(data 0x%x)",
6905 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6906 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6907 		    rvalue));
6908 
6909 		rvalue |= NXGE_PCI_RESET_ALL;
6910 		pci_config_put32(nxgep->dev_regs->nxge_pciregh,
6911 		    NXGE_PCI_PORT_LOGIC_OFFSET, rvalue);
6912 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6913 		    "nxge_niu_peu_reset: RESETTING NIU: write NIU reset 0x%x",
6914 		    rvalue));
6915 
6916 		NXGE_DELAY(NXGE_PCI_RESET_WAIT);
6917 	}
6918 
6919 	MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6920 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_niu_peu_reset"));
6921 }
6922 
6923 static void
6924 nxge_set_pci_replay_timeout(p_nxge_t nxgep)
6925 {
6926 	p_dev_regs_t	dev_regs;
6927 	uint32_t	value;
6928 
6929 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_set_pci_replay_timeout"));
6930 
6931 	if (!nxge_set_replay_timer) {
6932 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6933 		    "==> nxge_set_pci_replay_timeout: will not change "
6934 		    "the timeout"));
6935 		return;
6936 	}
6937 
6938 	dev_regs = nxgep->dev_regs;
6939 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6940 	    "==> nxge_set_pci_replay_timeout: dev_regs 0x%p pcireg 0x%p",
6941 	    dev_regs, dev_regs->nxge_pciregh));
6942 
6943 	if (dev_regs == NULL || (dev_regs->nxge_pciregh == NULL)) {
6944 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6945 		    "==> nxge_set_pci_replay_timeout: NULL dev_regs $%p or "
6946 		    "no PCI handle",
6947 		    dev_regs));
6948 		return;
6949 	}
6950 	value = (pci_config_get32(dev_regs->nxge_pciregh,
6951 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET) |
6952 	    (nxge_replay_timeout << PCI_REPLAY_TIMEOUT_SHIFT));
6953 
6954 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6955 	    "nxge_set_pci_replay_timeout: replay timeout value before set 0x%x "
6956 	    "(timeout value to set 0x%x at offset 0x%x) value 0x%x",
6957 	    pci_config_get32(dev_regs->nxge_pciregh,
6958 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET), nxge_replay_timeout,
6959 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET, value));
6960 
6961 	pci_config_put32(dev_regs->nxge_pciregh, PCI_REPLAY_TIMEOUT_CFG_OFFSET,
6962 	    value);
6963 
6964 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6965 	    "nxge_set_pci_replay_timeout: replay timeout value after set 0x%x",
6966 	    pci_config_get32(dev_regs->nxge_pciregh,
6967 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET)));
6968 
6969 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_set_pci_replay_timeout"));
6970 }
6971 
6972 /*
6973  * quiesce(9E) entry point.
6974  *
6975  * This function is called when the system is single-threaded at high
6976  * PIL with preemption disabled. Therefore, this function must not be
6977  * blocked.
6978  *
6979  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
6980  * DDI_FAILURE indicates an error condition and should almost never happen.
6981  */
6982 static int
6983 nxge_quiesce(dev_info_t *dip)
6984 {
6985 	int instance = ddi_get_instance(dip);
6986 	p_nxge_t nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
6987 
6988 	if (nxgep == NULL)
6989 		return (DDI_FAILURE);
6990 
6991 	/* Turn off debugging */
6992 	nxge_debug_level = NO_DEBUG;
6993 	nxgep->nxge_debug_level = NO_DEBUG;
6994 	npi_debug_level = NO_DEBUG;
6995 
6996 	/*
6997 	 * Stop link monitor only when linkchkmod is interrupt based
6998 	 */
6999 	if (nxgep->mac.linkchkmode == LINKCHK_INTR) {
7000 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
7001 	}
7002 
7003 	(void) nxge_intr_hw_disable(nxgep);
7004 
7005 	/*
7006 	 * Reset the receive MAC side.
7007 	 */
7008 	(void) nxge_rx_mac_disable(nxgep);
7009 
7010 	/* Disable and soft reset the IPP */
7011 	if (!isLDOMguest(nxgep))
7012 		(void) nxge_ipp_disable(nxgep);
7013 
7014 	/*
7015 	 * Reset the transmit/receive DMA side.
7016 	 */
7017 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
7018 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
7019 
7020 	/*
7021 	 * Reset the transmit MAC side.
7022 	 */
7023 	(void) nxge_tx_mac_disable(nxgep);
7024 
7025 	return (DDI_SUCCESS);
7026 }
7027