xref: /titanic_50/usr/src/uts/common/io/nxge/nxge_main.c (revision 3e5bc1d795e8c41f3680a71e3954e72d079ee46d)
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 2008 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 #if defined(__i386)
1761 	size_t		reg;
1762 #else
1763 	uint64_t	reg;
1764 #endif
1765 	uint64_t	regdata;
1766 	int		i, retry;
1767 
1768 	bcopy((char *)mp->b_rptr, (char *)&reg, sizeof (uint64_t));
1769 	regdata = 0;
1770 	retry = 1;
1771 
1772 	for (i = 0; i < retry; i++) {
1773 		NXGE_REG_RD64(nxgep->npi_handle, reg, &regdata);
1774 	}
1775 	bcopy((char *)&regdata, (char *)mp->b_rptr, sizeof (uint64_t));
1776 }
1777 
1778 void
1779 nxge_put64(p_nxge_t nxgep, p_mblk_t mp)
1780 {
1781 #if defined(__i386)
1782 	size_t		reg;
1783 #else
1784 	uint64_t	reg;
1785 #endif
1786 	uint64_t	buf[2];
1787 
1788 	bcopy((char *)mp->b_rptr, (char *)&buf[0], 2 * sizeof (uint64_t));
1789 #if defined(__i386)
1790 	reg = (size_t)buf[0];
1791 #else
1792 	reg = buf[0];
1793 #endif
1794 
1795 	NXGE_NPI_PIO_WRITE64(nxgep->npi_handle, reg, buf[1]);
1796 }
1797 
1798 
1799 nxge_os_mutex_t nxgedebuglock;
1800 int nxge_debug_init = 0;
1801 
1802 /*ARGSUSED*/
1803 /*VARARGS*/
1804 void
1805 nxge_debug_msg(p_nxge_t nxgep, uint64_t level, char *fmt, ...)
1806 {
1807 	char msg_buffer[1048];
1808 	char prefix_buffer[32];
1809 	int instance;
1810 	uint64_t debug_level;
1811 	int cmn_level = CE_CONT;
1812 	va_list ap;
1813 
1814 	if (nxgep && nxgep->nxge_debug_level != nxge_debug_level) {
1815 		/* In case a developer has changed nxge_debug_level. */
1816 		if (nxgep->nxge_debug_level != nxge_debug_level)
1817 			nxgep->nxge_debug_level = nxge_debug_level;
1818 	}
1819 
1820 	debug_level = (nxgep == NULL) ? nxge_debug_level :
1821 	    nxgep->nxge_debug_level;
1822 
1823 	if ((level & debug_level) ||
1824 	    (level == NXGE_NOTE) ||
1825 	    (level == NXGE_ERR_CTL)) {
1826 		/* do the msg processing */
1827 		if (nxge_debug_init == 0) {
1828 			MUTEX_INIT(&nxgedebuglock, NULL, MUTEX_DRIVER, NULL);
1829 			nxge_debug_init = 1;
1830 		}
1831 
1832 		MUTEX_ENTER(&nxgedebuglock);
1833 
1834 		if ((level & NXGE_NOTE)) {
1835 			cmn_level = CE_NOTE;
1836 		}
1837 
1838 		if (level & NXGE_ERR_CTL) {
1839 			cmn_level = CE_WARN;
1840 		}
1841 
1842 		va_start(ap, fmt);
1843 		(void) vsprintf(msg_buffer, fmt, ap);
1844 		va_end(ap);
1845 		if (nxgep == NULL) {
1846 			instance = -1;
1847 			(void) sprintf(prefix_buffer, "%s :", "nxge");
1848 		} else {
1849 			instance = nxgep->instance;
1850 			(void) sprintf(prefix_buffer,
1851 			    "%s%d :", "nxge", instance);
1852 		}
1853 
1854 		MUTEX_EXIT(&nxgedebuglock);
1855 		cmn_err(cmn_level, "!%s %s\n",
1856 		    prefix_buffer, msg_buffer);
1857 
1858 	}
1859 }
1860 
1861 char *
1862 nxge_dump_packet(char *addr, int size)
1863 {
1864 	uchar_t *ap = (uchar_t *)addr;
1865 	int i;
1866 	static char etherbuf[1024];
1867 	char *cp = etherbuf;
1868 	char digits[] = "0123456789abcdef";
1869 
1870 	if (!size)
1871 		size = 60;
1872 
1873 	if (size > MAX_DUMP_SZ) {
1874 		/* Dump the leading bytes */
1875 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1876 			if (*ap > 0x0f)
1877 				*cp++ = digits[*ap >> 4];
1878 			*cp++ = digits[*ap++ & 0xf];
1879 			*cp++ = ':';
1880 		}
1881 		for (i = 0; i < 20; i++)
1882 			*cp++ = '.';
1883 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1884 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ/2));
1885 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1886 			if (*ap > 0x0f)
1887 				*cp++ = digits[*ap >> 4];
1888 			*cp++ = digits[*ap++ & 0xf];
1889 			*cp++ = ':';
1890 		}
1891 	} else {
1892 		for (i = 0; i < size; i++) {
1893 			if (*ap > 0x0f)
1894 				*cp++ = digits[*ap >> 4];
1895 			*cp++ = digits[*ap++ & 0xf];
1896 			*cp++ = ':';
1897 		}
1898 	}
1899 	*--cp = 0;
1900 	return (etherbuf);
1901 }
1902 
1903 #ifdef	NXGE_DEBUG
1904 static void
1905 nxge_test_map_regs(p_nxge_t nxgep)
1906 {
1907 	ddi_acc_handle_t cfg_handle;
1908 	p_pci_cfg_t	cfg_ptr;
1909 	ddi_acc_handle_t dev_handle;
1910 	char		*dev_ptr;
1911 	ddi_acc_handle_t pci_config_handle;
1912 	uint32_t	regval;
1913 	int		i;
1914 
1915 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_test_map_regs"));
1916 
1917 	dev_handle = nxgep->dev_regs->nxge_regh;
1918 	dev_ptr = (char *)nxgep->dev_regs->nxge_regp;
1919 
1920 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1921 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1922 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1923 
1924 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1925 		    "Neptune PCI regp cfg_ptr 0x%llx", (char *)cfg_ptr));
1926 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1927 		    "Neptune PCI cfg_ptr vendor id ptr 0x%llx",
1928 		    &cfg_ptr->vendorid));
1929 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1930 		    "\tvendorid 0x%x devid 0x%x",
1931 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->vendorid, 0),
1932 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->devid,    0)));
1933 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1934 		    "PCI BAR: base 0x%x base14 0x%x base 18 0x%x "
1935 		    "bar1c 0x%x",
1936 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base,   0),
1937 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base14, 0),
1938 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base18, 0),
1939 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base1c, 0)));
1940 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1941 		    "\nNeptune PCI BAR: base20 0x%x base24 0x%x "
1942 		    "base 28 0x%x bar2c 0x%x\n",
1943 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base20, 0),
1944 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base24, 0),
1945 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base28, 0),
1946 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base2c, 0)));
1947 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1948 		    "\nNeptune PCI BAR: base30 0x%x\n",
1949 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base30, 0)));
1950 
1951 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1952 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1953 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1954 		    "first  0x%llx second 0x%llx third 0x%llx "
1955 		    "last 0x%llx ",
1956 		    NXGE_PIO_READ64(dev_handle,
1957 		    (uint64_t *)(dev_ptr + 0),  0),
1958 		    NXGE_PIO_READ64(dev_handle,
1959 		    (uint64_t *)(dev_ptr + 8),  0),
1960 		    NXGE_PIO_READ64(dev_handle,
1961 		    (uint64_t *)(dev_ptr + 16), 0),
1962 		    NXGE_PIO_READ64(cfg_handle,
1963 		    (uint64_t *)(dev_ptr + 24), 0)));
1964 	}
1965 }
1966 
1967 #endif
1968 
1969 static void
1970 nxge_suspend(p_nxge_t nxgep)
1971 {
1972 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_suspend"));
1973 
1974 	nxge_intrs_disable(nxgep);
1975 	nxge_destroy_dev(nxgep);
1976 
1977 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_suspend"));
1978 }
1979 
1980 static nxge_status_t
1981 nxge_resume(p_nxge_t nxgep)
1982 {
1983 	nxge_status_t status = NXGE_OK;
1984 
1985 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_resume"));
1986 
1987 	nxgep->suspended = DDI_RESUME;
1988 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1989 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_START);
1990 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_START);
1991 	(void) nxge_rx_mac_enable(nxgep);
1992 	(void) nxge_tx_mac_enable(nxgep);
1993 	nxge_intrs_enable(nxgep);
1994 	nxgep->suspended = 0;
1995 
1996 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1997 	    "<== nxge_resume status = 0x%x", status));
1998 	return (status);
1999 }
2000 
2001 static nxge_status_t
2002 nxge_setup_dev(p_nxge_t nxgep)
2003 {
2004 	nxge_status_t	status = NXGE_OK;
2005 
2006 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_dev port %d",
2007 	    nxgep->mac.portnum));
2008 
2009 	status = nxge_link_init(nxgep);
2010 
2011 	if (fm_check_acc_handle(nxgep->dev_regs->nxge_regh) != DDI_FM_OK) {
2012 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2013 		    "port%d Bad register acc handle", nxgep->mac.portnum));
2014 		status = NXGE_ERROR;
2015 	}
2016 
2017 	if (status != NXGE_OK) {
2018 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2019 		    " nxge_setup_dev status "
2020 		    "(xcvr init 0x%08x)", status));
2021 		goto nxge_setup_dev_exit;
2022 	}
2023 
2024 nxge_setup_dev_exit:
2025 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2026 	    "<== nxge_setup_dev port %d status = 0x%08x",
2027 	    nxgep->mac.portnum, status));
2028 
2029 	return (status);
2030 }
2031 
2032 static void
2033 nxge_destroy_dev(p_nxge_t nxgep)
2034 {
2035 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_dev"));
2036 
2037 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
2038 
2039 	(void) nxge_hw_stop(nxgep);
2040 
2041 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_dev"));
2042 }
2043 
2044 static nxge_status_t
2045 nxge_setup_system_dma_pages(p_nxge_t nxgep)
2046 {
2047 	int 			ddi_status = DDI_SUCCESS;
2048 	uint_t 			count;
2049 	ddi_dma_cookie_t 	cookie;
2050 	uint_t 			iommu_pagesize;
2051 	nxge_status_t		status = NXGE_OK;
2052 
2053 	NXGE_ERROR_MSG((nxgep, DDI_CTL, "==> nxge_setup_system_dma_pages"));
2054 	nxgep->sys_page_sz = ddi_ptob(nxgep->dip, (ulong_t)1);
2055 	if (nxgep->niu_type != N2_NIU) {
2056 		iommu_pagesize = dvma_pagesize(nxgep->dip);
2057 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2058 		    " nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2059 		    " default_block_size %d iommu_pagesize %d",
2060 		    nxgep->sys_page_sz,
2061 		    ddi_ptob(nxgep->dip, (ulong_t)1),
2062 		    nxgep->rx_default_block_size,
2063 		    iommu_pagesize));
2064 
2065 		if (iommu_pagesize != 0) {
2066 			if (nxgep->sys_page_sz == iommu_pagesize) {
2067 				if (iommu_pagesize > 0x4000)
2068 					nxgep->sys_page_sz = 0x4000;
2069 			} else {
2070 				if (nxgep->sys_page_sz > iommu_pagesize)
2071 					nxgep->sys_page_sz = iommu_pagesize;
2072 			}
2073 		}
2074 	}
2075 	nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2076 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2077 	    "==> nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2078 	    "default_block_size %d page mask %d",
2079 	    nxgep->sys_page_sz,
2080 	    ddi_ptob(nxgep->dip, (ulong_t)1),
2081 	    nxgep->rx_default_block_size,
2082 	    nxgep->sys_page_mask));
2083 
2084 
2085 	switch (nxgep->sys_page_sz) {
2086 	default:
2087 		nxgep->sys_page_sz = 0x1000;
2088 		nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2089 		nxgep->rx_default_block_size = 0x1000;
2090 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2091 		break;
2092 	case 0x1000:
2093 		nxgep->rx_default_block_size = 0x1000;
2094 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2095 		break;
2096 	case 0x2000:
2097 		nxgep->rx_default_block_size = 0x2000;
2098 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2099 		break;
2100 	case 0x4000:
2101 		nxgep->rx_default_block_size = 0x4000;
2102 		nxgep->rx_bksize_code = RBR_BKSIZE_16K;
2103 		break;
2104 	case 0x8000:
2105 		nxgep->rx_default_block_size = 0x8000;
2106 		nxgep->rx_bksize_code = RBR_BKSIZE_32K;
2107 		break;
2108 	}
2109 
2110 #ifndef USE_RX_BIG_BUF
2111 	nxge_rx_dma_attr.dma_attr_align = nxgep->sys_page_sz;
2112 #else
2113 		nxgep->rx_default_block_size = 0x2000;
2114 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2115 #endif
2116 	/*
2117 	 * Get the system DMA burst size.
2118 	 */
2119 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, &nxge_tx_dma_attr,
2120 	    DDI_DMA_DONTWAIT, 0,
2121 	    &nxgep->dmasparehandle);
2122 	if (ddi_status != DDI_SUCCESS) {
2123 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2124 		    "ddi_dma_alloc_handle: failed "
2125 		    " status 0x%x", ddi_status));
2126 		goto nxge_get_soft_properties_exit;
2127 	}
2128 
2129 	ddi_status = ddi_dma_addr_bind_handle(nxgep->dmasparehandle, NULL,
2130 	    (caddr_t)nxgep->dmasparehandle,
2131 	    sizeof (nxgep->dmasparehandle),
2132 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2133 	    DDI_DMA_DONTWAIT, 0,
2134 	    &cookie, &count);
2135 	if (ddi_status != DDI_DMA_MAPPED) {
2136 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2137 		    "Binding spare handle to find system"
2138 		    " burstsize failed."));
2139 		ddi_status = DDI_FAILURE;
2140 		goto nxge_get_soft_properties_fail1;
2141 	}
2142 
2143 	nxgep->sys_burst_sz = ddi_dma_burstsizes(nxgep->dmasparehandle);
2144 	(void) ddi_dma_unbind_handle(nxgep->dmasparehandle);
2145 
2146 nxge_get_soft_properties_fail1:
2147 	ddi_dma_free_handle(&nxgep->dmasparehandle);
2148 
2149 nxge_get_soft_properties_exit:
2150 
2151 	if (ddi_status != DDI_SUCCESS)
2152 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2153 
2154 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2155 	    "<== nxge_setup_system_dma_pages status = 0x%08x", status));
2156 	return (status);
2157 }
2158 
2159 static nxge_status_t
2160 nxge_alloc_mem_pool(p_nxge_t nxgep)
2161 {
2162 	nxge_status_t	status = NXGE_OK;
2163 
2164 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_alloc_mem_pool"));
2165 
2166 	status = nxge_alloc_rx_mem_pool(nxgep);
2167 	if (status != NXGE_OK) {
2168 		return (NXGE_ERROR);
2169 	}
2170 
2171 	status = nxge_alloc_tx_mem_pool(nxgep);
2172 	if (status != NXGE_OK) {
2173 		nxge_free_rx_mem_pool(nxgep);
2174 		return (NXGE_ERROR);
2175 	}
2176 
2177 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_alloc_mem_pool"));
2178 	return (NXGE_OK);
2179 }
2180 
2181 static void
2182 nxge_free_mem_pool(p_nxge_t nxgep)
2183 {
2184 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_mem_pool"));
2185 
2186 	nxge_free_rx_mem_pool(nxgep);
2187 	nxge_free_tx_mem_pool(nxgep);
2188 
2189 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_mem_pool"));
2190 }
2191 
2192 nxge_status_t
2193 nxge_alloc_rx_mem_pool(p_nxge_t nxgep)
2194 {
2195 	uint32_t		rdc_max;
2196 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
2197 	p_nxge_hw_pt_cfg_t	p_cfgp;
2198 	p_nxge_dma_pool_t	dma_poolp;
2199 	p_nxge_dma_common_t	*dma_buf_p;
2200 	p_nxge_dma_pool_t	dma_cntl_poolp;
2201 	p_nxge_dma_common_t	*dma_cntl_p;
2202 	uint32_t 		*num_chunks; /* per dma */
2203 	nxge_status_t		status = NXGE_OK;
2204 
2205 	uint32_t		nxge_port_rbr_size;
2206 	uint32_t		nxge_port_rbr_spare_size;
2207 	uint32_t		nxge_port_rcr_size;
2208 	uint32_t		rx_cntl_alloc_size;
2209 
2210 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_mem_pool"));
2211 
2212 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
2213 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
2214 	rdc_max = NXGE_MAX_RDCS;
2215 
2216 	/*
2217 	 * Allocate memory for the common DMA data structures.
2218 	 */
2219 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2220 	    KM_SLEEP);
2221 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2222 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2223 
2224 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2225 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2226 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2227 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2228 
2229 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2230 	    sizeof (uint32_t) * rdc_max, KM_SLEEP);
2231 
2232 	/*
2233 	 * Assume that each DMA channel will be configured with
2234 	 * the default block size.
2235 	 * rbr block counts are modulo the batch count (16).
2236 	 */
2237 	nxge_port_rbr_size = p_all_cfgp->rbr_size;
2238 	nxge_port_rcr_size = p_all_cfgp->rcr_size;
2239 
2240 	if (!nxge_port_rbr_size) {
2241 		nxge_port_rbr_size = NXGE_RBR_RBB_DEFAULT;
2242 	}
2243 	if (nxge_port_rbr_size % NXGE_RXDMA_POST_BATCH) {
2244 		nxge_port_rbr_size = (NXGE_RXDMA_POST_BATCH *
2245 		    (nxge_port_rbr_size / NXGE_RXDMA_POST_BATCH + 1));
2246 	}
2247 
2248 	p_all_cfgp->rbr_size = nxge_port_rbr_size;
2249 	nxge_port_rbr_spare_size = nxge_rbr_spare_size;
2250 
2251 	if (nxge_port_rbr_spare_size % NXGE_RXDMA_POST_BATCH) {
2252 		nxge_port_rbr_spare_size = (NXGE_RXDMA_POST_BATCH *
2253 		    (nxge_port_rbr_spare_size / NXGE_RXDMA_POST_BATCH + 1));
2254 	}
2255 	if (nxge_port_rbr_size > RBR_DEFAULT_MAX_BLKS) {
2256 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2257 		    "nxge_alloc_rx_mem_pool: RBR size too high %d, "
2258 		    "set to default %d",
2259 		    nxge_port_rbr_size, RBR_DEFAULT_MAX_BLKS));
2260 		nxge_port_rbr_size = RBR_DEFAULT_MAX_BLKS;
2261 	}
2262 	if (nxge_port_rcr_size > RCR_DEFAULT_MAX) {
2263 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2264 		    "nxge_alloc_rx_mem_pool: RCR too high %d, "
2265 		    "set to default %d",
2266 		    nxge_port_rcr_size, RCR_DEFAULT_MAX));
2267 		nxge_port_rcr_size = RCR_DEFAULT_MAX;
2268 	}
2269 
2270 	/*
2271 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2272 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2273 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2274 	 * function).
2275 	 */
2276 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2277 	if (nxgep->niu_type == N2_NIU) {
2278 		nxge_port_rbr_spare_size = 0;
2279 		if ((nxge_port_rbr_size > NXGE_NIU_CONTIG_RBR_MAX) ||
2280 		    (!ISP2(nxge_port_rbr_size))) {
2281 			nxge_port_rbr_size = NXGE_NIU_CONTIG_RBR_MAX;
2282 		}
2283 		if ((nxge_port_rcr_size > NXGE_NIU_CONTIG_RCR_MAX) ||
2284 		    (!ISP2(nxge_port_rcr_size))) {
2285 			nxge_port_rcr_size = NXGE_NIU_CONTIG_RCR_MAX;
2286 		}
2287 	}
2288 #endif
2289 
2290 	/*
2291 	 * Addresses of receive block ring, receive completion ring and the
2292 	 * mailbox must be all cache-aligned (64 bytes).
2293 	 */
2294 	rx_cntl_alloc_size = nxge_port_rbr_size + nxge_port_rbr_spare_size;
2295 	rx_cntl_alloc_size *= (sizeof (rx_desc_t));
2296 	rx_cntl_alloc_size += (sizeof (rcr_entry_t) * nxge_port_rcr_size);
2297 	rx_cntl_alloc_size += sizeof (rxdma_mailbox_t);
2298 
2299 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_alloc_rx_mem_pool: "
2300 	    "nxge_port_rbr_size = %d nxge_port_rbr_spare_size = %d "
2301 	    "nxge_port_rcr_size = %d "
2302 	    "rx_cntl_alloc_size = %d",
2303 	    nxge_port_rbr_size, nxge_port_rbr_spare_size,
2304 	    nxge_port_rcr_size,
2305 	    rx_cntl_alloc_size));
2306 
2307 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2308 	if (nxgep->niu_type == N2_NIU) {
2309 		uint32_t rx_buf_alloc_size = (nxgep->rx_default_block_size *
2310 		    (nxge_port_rbr_size + nxge_port_rbr_spare_size));
2311 
2312 		if (!ISP2(rx_buf_alloc_size)) {
2313 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2314 			    "==> nxge_alloc_rx_mem_pool: "
2315 			    " must be power of 2"));
2316 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2317 			goto nxge_alloc_rx_mem_pool_exit;
2318 		}
2319 
2320 		if (rx_buf_alloc_size > (1 << 22)) {
2321 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2322 			    "==> nxge_alloc_rx_mem_pool: "
2323 			    " limit size to 4M"));
2324 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2325 			goto nxge_alloc_rx_mem_pool_exit;
2326 		}
2327 
2328 		if (rx_cntl_alloc_size < 0x2000) {
2329 			rx_cntl_alloc_size = 0x2000;
2330 		}
2331 	}
2332 #endif
2333 	nxgep->nxge_port_rbr_size = nxge_port_rbr_size;
2334 	nxgep->nxge_port_rcr_size = nxge_port_rcr_size;
2335 	nxgep->nxge_port_rbr_spare_size = nxge_port_rbr_spare_size;
2336 	nxgep->nxge_port_rx_cntl_alloc_size = rx_cntl_alloc_size;
2337 
2338 	dma_poolp->ndmas = p_cfgp->max_rdcs;
2339 	dma_poolp->num_chunks = num_chunks;
2340 	dma_poolp->buf_allocated = B_TRUE;
2341 	nxgep->rx_buf_pool_p = dma_poolp;
2342 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2343 
2344 	dma_cntl_poolp->ndmas = p_cfgp->max_rdcs;
2345 	dma_cntl_poolp->buf_allocated = B_TRUE;
2346 	nxgep->rx_cntl_pool_p = dma_cntl_poolp;
2347 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2348 
2349 	/* Allocate the receive rings, too. */
2350 	nxgep->rx_rbr_rings =
2351 	    KMEM_ZALLOC(sizeof (rx_rbr_rings_t), KM_SLEEP);
2352 	nxgep->rx_rbr_rings->rbr_rings =
2353 	    KMEM_ZALLOC(sizeof (p_rx_rbr_ring_t) * rdc_max, KM_SLEEP);
2354 	nxgep->rx_rcr_rings =
2355 	    KMEM_ZALLOC(sizeof (rx_rcr_rings_t), KM_SLEEP);
2356 	nxgep->rx_rcr_rings->rcr_rings =
2357 	    KMEM_ZALLOC(sizeof (p_rx_rcr_ring_t) * rdc_max, KM_SLEEP);
2358 	nxgep->rx_mbox_areas_p =
2359 	    KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
2360 	nxgep->rx_mbox_areas_p->rxmbox_areas =
2361 	    KMEM_ZALLOC(sizeof (p_rx_mbox_t) * rdc_max, KM_SLEEP);
2362 
2363 	nxgep->rx_rbr_rings->ndmas = nxgep->rx_rcr_rings->ndmas =
2364 	    p_cfgp->max_rdcs;
2365 
2366 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2367 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2368 
2369 nxge_alloc_rx_mem_pool_exit:
2370 	return (status);
2371 }
2372 
2373 /*
2374  * nxge_alloc_rxb
2375  *
2376  *	Allocate buffers for an RDC.
2377  *
2378  * Arguments:
2379  * 	nxgep
2380  * 	channel	The channel to map into our kernel space.
2381  *
2382  * Notes:
2383  *
2384  * NPI function calls:
2385  *
2386  * NXGE function calls:
2387  *
2388  * Registers accessed:
2389  *
2390  * Context:
2391  *
2392  * Taking apart:
2393  *
2394  * Open questions:
2395  *
2396  */
2397 nxge_status_t
2398 nxge_alloc_rxb(
2399 	p_nxge_t nxgep,
2400 	int channel)
2401 {
2402 	size_t			rx_buf_alloc_size;
2403 	nxge_status_t		status = NXGE_OK;
2404 
2405 	nxge_dma_common_t	**data;
2406 	nxge_dma_common_t	**control;
2407 	uint32_t 		*num_chunks;
2408 
2409 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2410 
2411 	/*
2412 	 * Allocate memory for the receive buffers and descriptor rings.
2413 	 * Replace these allocation functions with the interface functions
2414 	 * provided by the partition manager if/when they are available.
2415 	 */
2416 
2417 	/*
2418 	 * Allocate memory for the receive buffer blocks.
2419 	 */
2420 	rx_buf_alloc_size = (nxgep->rx_default_block_size *
2421 	    (nxgep->nxge_port_rbr_size + nxgep->nxge_port_rbr_spare_size));
2422 
2423 	data = &nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2424 	num_chunks = &nxgep->rx_buf_pool_p->num_chunks[channel];
2425 
2426 	if ((status = nxge_alloc_rx_buf_dma(
2427 	    nxgep, channel, data, rx_buf_alloc_size,
2428 	    nxgep->rx_default_block_size, num_chunks)) != NXGE_OK) {
2429 		return (status);
2430 	}
2431 
2432 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_alloc_rxb(): "
2433 	    "dma %d dma_buf_p %llx &dma_buf_p %llx", channel, *data, data));
2434 
2435 	/*
2436 	 * Allocate memory for descriptor rings and mailbox.
2437 	 */
2438 	control = &nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2439 
2440 	if ((status = nxge_alloc_rx_cntl_dma(
2441 	    nxgep, channel, control, nxgep->nxge_port_rx_cntl_alloc_size))
2442 	    != NXGE_OK) {
2443 		nxge_free_rx_cntl_dma(nxgep, *control);
2444 		(*data)->buf_alloc_state |= BUF_ALLOCATED_WAIT_FREE;
2445 		nxge_free_rx_buf_dma(nxgep, *data, *num_chunks);
2446 		return (status);
2447 	}
2448 
2449 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2450 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2451 
2452 	return (status);
2453 }
2454 
2455 void
2456 nxge_free_rxb(
2457 	p_nxge_t nxgep,
2458 	int channel)
2459 {
2460 	nxge_dma_common_t	*data;
2461 	nxge_dma_common_t	*control;
2462 	uint32_t 		num_chunks;
2463 
2464 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2465 
2466 	data = nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2467 	num_chunks = nxgep->rx_buf_pool_p->num_chunks[channel];
2468 	nxge_free_rx_buf_dma(nxgep, data, num_chunks);
2469 
2470 	nxgep->rx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2471 	nxgep->rx_buf_pool_p->num_chunks[channel] = 0;
2472 
2473 	control = nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2474 	nxge_free_rx_cntl_dma(nxgep, control);
2475 
2476 	nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2477 
2478 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2479 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2480 
2481 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_alloc_rbb"));
2482 }
2483 
2484 static void
2485 nxge_free_rx_mem_pool(p_nxge_t nxgep)
2486 {
2487 	int rdc_max = NXGE_MAX_RDCS;
2488 
2489 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_mem_pool"));
2490 
2491 	if (!nxgep->rx_buf_pool_p || !nxgep->rx_buf_pool_p->buf_allocated) {
2492 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2493 		    "<== nxge_free_rx_mem_pool "
2494 		    "(null rx buf pool or buf not allocated"));
2495 		return;
2496 	}
2497 	if (!nxgep->rx_cntl_pool_p || !nxgep->rx_cntl_pool_p->buf_allocated) {
2498 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2499 		    "<== nxge_free_rx_mem_pool "
2500 		    "(null rx cntl buf pool or cntl buf not allocated"));
2501 		return;
2502 	}
2503 
2504 	KMEM_FREE(nxgep->rx_cntl_pool_p->dma_buf_pool_p,
2505 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2506 	KMEM_FREE(nxgep->rx_cntl_pool_p, sizeof (nxge_dma_pool_t));
2507 
2508 	KMEM_FREE(nxgep->rx_buf_pool_p->num_chunks,
2509 	    sizeof (uint32_t) * rdc_max);
2510 	KMEM_FREE(nxgep->rx_buf_pool_p->dma_buf_pool_p,
2511 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2512 	KMEM_FREE(nxgep->rx_buf_pool_p, sizeof (nxge_dma_pool_t));
2513 
2514 	nxgep->rx_buf_pool_p = 0;
2515 	nxgep->rx_cntl_pool_p = 0;
2516 
2517 	KMEM_FREE(nxgep->rx_rbr_rings->rbr_rings,
2518 	    sizeof (p_rx_rbr_ring_t) * rdc_max);
2519 	KMEM_FREE(nxgep->rx_rbr_rings, sizeof (rx_rbr_rings_t));
2520 	KMEM_FREE(nxgep->rx_rcr_rings->rcr_rings,
2521 	    sizeof (p_rx_rcr_ring_t) * rdc_max);
2522 	KMEM_FREE(nxgep->rx_rcr_rings, sizeof (rx_rcr_rings_t));
2523 	KMEM_FREE(nxgep->rx_mbox_areas_p->rxmbox_areas,
2524 	    sizeof (p_rx_mbox_t) * rdc_max);
2525 	KMEM_FREE(nxgep->rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
2526 
2527 	nxgep->rx_rbr_rings = 0;
2528 	nxgep->rx_rcr_rings = 0;
2529 	nxgep->rx_mbox_areas_p = 0;
2530 
2531 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_rx_mem_pool"));
2532 }
2533 
2534 
2535 static nxge_status_t
2536 nxge_alloc_rx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2537 	p_nxge_dma_common_t *dmap,
2538 	size_t alloc_size, size_t block_size, uint32_t *num_chunks)
2539 {
2540 	p_nxge_dma_common_t 	rx_dmap;
2541 	nxge_status_t		status = NXGE_OK;
2542 	size_t			total_alloc_size;
2543 	size_t			allocated = 0;
2544 	int			i, size_index, array_size;
2545 	boolean_t		use_kmem_alloc = B_FALSE;
2546 
2547 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_buf_dma"));
2548 
2549 	rx_dmap = (p_nxge_dma_common_t)
2550 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2551 	    KM_SLEEP);
2552 
2553 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2554 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
2555 	    dma_channel, alloc_size, block_size, dmap));
2556 
2557 	total_alloc_size = alloc_size;
2558 
2559 #if defined(RX_USE_RECLAIM_POST)
2560 	total_alloc_size = alloc_size + alloc_size/4;
2561 #endif
2562 
2563 	i = 0;
2564 	size_index = 0;
2565 	array_size =  sizeof (alloc_sizes)/sizeof (size_t);
2566 	while ((alloc_sizes[size_index] < alloc_size) &&
2567 	    (size_index < array_size))
2568 		size_index++;
2569 	if (size_index >= array_size) {
2570 		size_index = array_size - 1;
2571 	}
2572 
2573 	/* For Neptune, use kmem_alloc if the kmem flag is set. */
2574 	if (nxgep->niu_type != N2_NIU && nxge_use_kmem_alloc) {
2575 		use_kmem_alloc = B_TRUE;
2576 #if defined(__i386) || defined(__amd64)
2577 		size_index = 0;
2578 #endif
2579 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2580 		    "==> nxge_alloc_rx_buf_dma: "
2581 		    "Neptune use kmem_alloc() - size_index %d",
2582 		    size_index));
2583 	}
2584 
2585 	while ((allocated < total_alloc_size) &&
2586 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2587 		rx_dmap[i].dma_chunk_index = i;
2588 		rx_dmap[i].block_size = block_size;
2589 		rx_dmap[i].alength = alloc_sizes[size_index];
2590 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
2591 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2592 		rx_dmap[i].dma_channel = dma_channel;
2593 		rx_dmap[i].contig_alloc_type = B_FALSE;
2594 		rx_dmap[i].kmem_alloc_type = B_FALSE;
2595 		rx_dmap[i].buf_alloc_type = DDI_MEM_ALLOC;
2596 
2597 		/*
2598 		 * N2/NIU: data buffers must be contiguous as the driver
2599 		 *	   needs to call Hypervisor api to set up
2600 		 *	   logical pages.
2601 		 */
2602 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2603 			rx_dmap[i].contig_alloc_type = B_TRUE;
2604 			rx_dmap[i].buf_alloc_type = CONTIG_MEM_ALLOC;
2605 		} else if (use_kmem_alloc) {
2606 			/* For Neptune, use kmem_alloc */
2607 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2608 			    "==> nxge_alloc_rx_buf_dma: "
2609 			    "Neptune use kmem_alloc()"));
2610 			rx_dmap[i].kmem_alloc_type = B_TRUE;
2611 			rx_dmap[i].buf_alloc_type = KMEM_ALLOC;
2612 		}
2613 
2614 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2615 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
2616 		    "i %d nblocks %d alength %d",
2617 		    dma_channel, i, &rx_dmap[i], block_size,
2618 		    i, rx_dmap[i].nblocks,
2619 		    rx_dmap[i].alength));
2620 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2621 		    &nxge_rx_dma_attr,
2622 		    rx_dmap[i].alength,
2623 		    &nxge_dev_buf_dma_acc_attr,
2624 		    DDI_DMA_READ | DDI_DMA_STREAMING,
2625 		    (p_nxge_dma_common_t)(&rx_dmap[i]));
2626 		if (status != NXGE_OK) {
2627 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2628 			    "nxge_alloc_rx_buf_dma: Alloc Failed: "
2629 			    "dma %d size_index %d size requested %d",
2630 			    dma_channel,
2631 			    size_index,
2632 			    rx_dmap[i].alength));
2633 			size_index--;
2634 		} else {
2635 			rx_dmap[i].buf_alloc_state = BUF_ALLOCATED;
2636 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2637 			    " nxge_alloc_rx_buf_dma DONE  alloc mem: "
2638 			    "dma %d dma_buf_p $%p kaddrp $%p alength %d "
2639 			    "buf_alloc_state %d alloc_type %d",
2640 			    dma_channel,
2641 			    &rx_dmap[i],
2642 			    rx_dmap[i].kaddrp,
2643 			    rx_dmap[i].alength,
2644 			    rx_dmap[i].buf_alloc_state,
2645 			    rx_dmap[i].buf_alloc_type));
2646 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2647 			    " alloc_rx_buf_dma allocated rdc %d "
2648 			    "chunk %d size %x dvma %x bufp %llx kaddrp $%p",
2649 			    dma_channel, i, rx_dmap[i].alength,
2650 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i],
2651 			    rx_dmap[i].kaddrp));
2652 			i++;
2653 			allocated += alloc_sizes[size_index];
2654 		}
2655 	}
2656 
2657 	if (allocated < total_alloc_size) {
2658 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2659 		    "==> nxge_alloc_rx_buf_dma: not enough for channel %d "
2660 		    "allocated 0x%x requested 0x%x",
2661 		    dma_channel,
2662 		    allocated, total_alloc_size));
2663 		status = NXGE_ERROR;
2664 		goto nxge_alloc_rx_mem_fail1;
2665 	}
2666 
2667 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2668 	    "==> nxge_alloc_rx_buf_dma: Allocated for channel %d "
2669 	    "allocated 0x%x requested 0x%x",
2670 	    dma_channel,
2671 	    allocated, total_alloc_size));
2672 
2673 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2674 	    " alloc_rx_buf_dma rdc %d allocated %d chunks",
2675 	    dma_channel, i));
2676 	*num_chunks = i;
2677 	*dmap = rx_dmap;
2678 
2679 	goto nxge_alloc_rx_mem_exit;
2680 
2681 nxge_alloc_rx_mem_fail1:
2682 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2683 
2684 nxge_alloc_rx_mem_exit:
2685 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2686 	    "<== nxge_alloc_rx_buf_dma status 0x%08x", status));
2687 
2688 	return (status);
2689 }
2690 
2691 /*ARGSUSED*/
2692 static void
2693 nxge_free_rx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2694     uint32_t num_chunks)
2695 {
2696 	int		i;
2697 
2698 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2699 	    "==> nxge_free_rx_buf_dma: # of chunks %d", num_chunks));
2700 
2701 	if (dmap == 0)
2702 		return;
2703 
2704 	for (i = 0; i < num_chunks; i++) {
2705 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2706 		    "==> nxge_free_rx_buf_dma: chunk %d dmap 0x%llx",
2707 		    i, dmap));
2708 		nxge_dma_free_rx_data_buf(dmap++);
2709 	}
2710 
2711 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_buf_dma"));
2712 }
2713 
2714 /*ARGSUSED*/
2715 static nxge_status_t
2716 nxge_alloc_rx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2717     p_nxge_dma_common_t *dmap, size_t size)
2718 {
2719 	p_nxge_dma_common_t 	rx_dmap;
2720 	nxge_status_t		status = NXGE_OK;
2721 
2722 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_cntl_dma"));
2723 
2724 	rx_dmap = (p_nxge_dma_common_t)
2725 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2726 
2727 	rx_dmap->contig_alloc_type = B_FALSE;
2728 	rx_dmap->kmem_alloc_type = B_FALSE;
2729 
2730 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2731 	    &nxge_desc_dma_attr,
2732 	    size,
2733 	    &nxge_dev_desc_dma_acc_attr,
2734 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2735 	    rx_dmap);
2736 	if (status != NXGE_OK) {
2737 		goto nxge_alloc_rx_cntl_dma_fail1;
2738 	}
2739 
2740 	*dmap = rx_dmap;
2741 	goto nxge_alloc_rx_cntl_dma_exit;
2742 
2743 nxge_alloc_rx_cntl_dma_fail1:
2744 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t));
2745 
2746 nxge_alloc_rx_cntl_dma_exit:
2747 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2748 	    "<== nxge_alloc_rx_cntl_dma status 0x%08x", status));
2749 
2750 	return (status);
2751 }
2752 
2753 /*ARGSUSED*/
2754 static void
2755 nxge_free_rx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2756 {
2757 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_rx_cntl_dma"));
2758 
2759 	if (dmap == 0)
2760 		return;
2761 
2762 	nxge_dma_mem_free(dmap);
2763 
2764 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_rx_cntl_dma"));
2765 }
2766 
2767 typedef struct {
2768 	size_t	tx_size;
2769 	size_t	cr_size;
2770 	size_t	threshhold;
2771 } nxge_tdc_sizes_t;
2772 
2773 static
2774 nxge_status_t
2775 nxge_tdc_sizes(
2776 	nxge_t *nxgep,
2777 	nxge_tdc_sizes_t *sizes)
2778 {
2779 	uint32_t threshhold;	/* The bcopy() threshhold */
2780 	size_t tx_size;		/* Transmit buffer size */
2781 	size_t cr_size;		/* Completion ring size */
2782 
2783 	/*
2784 	 * Assume that each DMA channel will be configured with the
2785 	 * default transmit buffer size for copying transmit data.
2786 	 * (If a packet is bigger than this, it will not be copied.)
2787 	 */
2788 	if (nxgep->niu_type == N2_NIU) {
2789 		threshhold = TX_BCOPY_SIZE;
2790 	} else {
2791 		threshhold = nxge_bcopy_thresh;
2792 	}
2793 	tx_size = nxge_tx_ring_size * threshhold;
2794 
2795 	cr_size = nxge_tx_ring_size * sizeof (tx_desc_t);
2796 	cr_size += sizeof (txdma_mailbox_t);
2797 
2798 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2799 	if (nxgep->niu_type == N2_NIU) {
2800 		if (!ISP2(tx_size)) {
2801 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2802 			    "==> nxge_tdc_sizes: Tx size"
2803 			    " must be power of 2"));
2804 			return (NXGE_ERROR);
2805 		}
2806 
2807 		if (tx_size > (1 << 22)) {
2808 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2809 			    "==> nxge_tdc_sizes: Tx size"
2810 			    " limited to 4M"));
2811 			return (NXGE_ERROR);
2812 		}
2813 
2814 		if (cr_size < 0x2000)
2815 			cr_size = 0x2000;
2816 	}
2817 #endif
2818 
2819 	sizes->threshhold = threshhold;
2820 	sizes->tx_size = tx_size;
2821 	sizes->cr_size = cr_size;
2822 
2823 	return (NXGE_OK);
2824 }
2825 /*
2826  * nxge_alloc_txb
2827  *
2828  *	Allocate buffers for an TDC.
2829  *
2830  * Arguments:
2831  * 	nxgep
2832  * 	channel	The channel to map into our kernel space.
2833  *
2834  * Notes:
2835  *
2836  * NPI function calls:
2837  *
2838  * NXGE function calls:
2839  *
2840  * Registers accessed:
2841  *
2842  * Context:
2843  *
2844  * Taking apart:
2845  *
2846  * Open questions:
2847  *
2848  */
2849 nxge_status_t
2850 nxge_alloc_txb(
2851 	p_nxge_t nxgep,
2852 	int channel)
2853 {
2854 	nxge_dma_common_t	**dma_buf_p;
2855 	nxge_dma_common_t	**dma_cntl_p;
2856 	uint32_t 		*num_chunks;
2857 	nxge_status_t		status = NXGE_OK;
2858 
2859 	nxge_tdc_sizes_t	sizes;
2860 
2861 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tbb"));
2862 
2863 	if (nxge_tdc_sizes(nxgep, &sizes) != NXGE_OK)
2864 		return (NXGE_ERROR);
2865 
2866 	/*
2867 	 * Allocate memory for transmit buffers and descriptor rings.
2868 	 * Replace these allocation functions with the interface functions
2869 	 * provided by the partition manager Real Soon Now.
2870 	 */
2871 	dma_buf_p = &nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2872 	num_chunks = &nxgep->tx_buf_pool_p->num_chunks[channel];
2873 
2874 	dma_cntl_p = &nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2875 
2876 	/*
2877 	 * Allocate memory for transmit buffers and descriptor rings.
2878 	 * Replace allocation functions with interface functions provided
2879 	 * by the partition manager when it is available.
2880 	 *
2881 	 * Allocate memory for the transmit buffer pool.
2882 	 */
2883 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2884 	    "sizes: tx: %ld, cr:%ld, th:%ld",
2885 	    sizes.tx_size, sizes.cr_size, sizes.threshhold));
2886 
2887 	*num_chunks = 0;
2888 	status = nxge_alloc_tx_buf_dma(nxgep, channel, dma_buf_p,
2889 	    sizes.tx_size, sizes.threshhold, num_chunks);
2890 	if (status != NXGE_OK) {
2891 		cmn_err(CE_NOTE, "nxge_alloc_tx_buf_dma failed!");
2892 		return (status);
2893 	}
2894 
2895 	/*
2896 	 * Allocate memory for descriptor rings and mailbox.
2897 	 */
2898 	status = nxge_alloc_tx_cntl_dma(nxgep, channel, dma_cntl_p,
2899 	    sizes.cr_size);
2900 	if (status != NXGE_OK) {
2901 		nxge_free_tx_buf_dma(nxgep, *dma_buf_p, *num_chunks);
2902 		cmn_err(CE_NOTE, "nxge_alloc_tx_cntl_dma failed!");
2903 		return (status);
2904 	}
2905 
2906 	return (NXGE_OK);
2907 }
2908 
2909 void
2910 nxge_free_txb(
2911 	p_nxge_t nxgep,
2912 	int channel)
2913 {
2914 	nxge_dma_common_t	*data;
2915 	nxge_dma_common_t	*control;
2916 	uint32_t 		num_chunks;
2917 
2918 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_txb"));
2919 
2920 	data = nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2921 	num_chunks = nxgep->tx_buf_pool_p->num_chunks[channel];
2922 	nxge_free_tx_buf_dma(nxgep, data, num_chunks);
2923 
2924 	nxgep->tx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2925 	nxgep->tx_buf_pool_p->num_chunks[channel] = 0;
2926 
2927 	control = nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2928 	nxge_free_tx_cntl_dma(nxgep, control);
2929 
2930 	nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2931 
2932 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2933 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2934 
2935 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_txb"));
2936 }
2937 
2938 /*
2939  * nxge_alloc_tx_mem_pool
2940  *
2941  *	This function allocates all of the per-port TDC control data structures.
2942  *	The per-channel (TDC) data structures are allocated when needed.
2943  *
2944  * Arguments:
2945  * 	nxgep
2946  *
2947  * Notes:
2948  *
2949  * Context:
2950  *	Any domain
2951  */
2952 nxge_status_t
2953 nxge_alloc_tx_mem_pool(p_nxge_t nxgep)
2954 {
2955 	nxge_hw_pt_cfg_t	*p_cfgp;
2956 	nxge_dma_pool_t		*dma_poolp;
2957 	nxge_dma_common_t	**dma_buf_p;
2958 	nxge_dma_pool_t		*dma_cntl_poolp;
2959 	nxge_dma_common_t	**dma_cntl_p;
2960 	uint32_t		*num_chunks; /* per dma */
2961 	int			tdc_max;
2962 
2963 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool"));
2964 
2965 	p_cfgp = &nxgep->pt_config.hw_config;
2966 	tdc_max = NXGE_MAX_TDCS;
2967 
2968 	/*
2969 	 * Allocate memory for each transmit DMA channel.
2970 	 */
2971 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2972 	    KM_SLEEP);
2973 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2974 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2975 
2976 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2977 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2978 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2979 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2980 
2981 	if (nxge_tx_ring_size > TDC_DEFAULT_MAX) {
2982 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2983 		    "nxge_alloc_tx_mem_pool: TDC too high %d, "
2984 		    "set to default %d",
2985 		    nxge_tx_ring_size, TDC_DEFAULT_MAX));
2986 		nxge_tx_ring_size = TDC_DEFAULT_MAX;
2987 	}
2988 
2989 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2990 	/*
2991 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2992 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2993 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2994 	 * function). The transmit ring is limited to 8K (includes the
2995 	 * mailbox).
2996 	 */
2997 	if (nxgep->niu_type == N2_NIU) {
2998 		if ((nxge_tx_ring_size > NXGE_NIU_CONTIG_TX_MAX) ||
2999 		    (!ISP2(nxge_tx_ring_size))) {
3000 			nxge_tx_ring_size = NXGE_NIU_CONTIG_TX_MAX;
3001 		}
3002 	}
3003 #endif
3004 
3005 	nxgep->nxge_port_tx_ring_size = nxge_tx_ring_size;
3006 
3007 	num_chunks = (uint32_t *)KMEM_ZALLOC(
3008 	    sizeof (uint32_t) * tdc_max, KM_SLEEP);
3009 
3010 	dma_poolp->ndmas = p_cfgp->tdc.owned;
3011 	dma_poolp->num_chunks = num_chunks;
3012 	dma_poolp->dma_buf_pool_p = dma_buf_p;
3013 	nxgep->tx_buf_pool_p = dma_poolp;
3014 
3015 	dma_poolp->buf_allocated = B_TRUE;
3016 
3017 	dma_cntl_poolp->ndmas = p_cfgp->tdc.owned;
3018 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
3019 	nxgep->tx_cntl_pool_p = dma_cntl_poolp;
3020 
3021 	dma_cntl_poolp->buf_allocated = B_TRUE;
3022 
3023 	nxgep->tx_rings =
3024 	    KMEM_ZALLOC(sizeof (tx_rings_t), KM_SLEEP);
3025 	nxgep->tx_rings->rings =
3026 	    KMEM_ZALLOC(sizeof (p_tx_ring_t) * tdc_max, KM_SLEEP);
3027 	nxgep->tx_mbox_areas_p =
3028 	    KMEM_ZALLOC(sizeof (tx_mbox_areas_t), KM_SLEEP);
3029 	nxgep->tx_mbox_areas_p->txmbox_areas_p =
3030 	    KMEM_ZALLOC(sizeof (p_tx_mbox_t) * tdc_max, KM_SLEEP);
3031 
3032 	nxgep->tx_rings->ndmas = p_cfgp->tdc.owned;
3033 
3034 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
3035 	    "==> nxge_alloc_tx_mem_pool: ndmas %d poolp->ndmas %d",
3036 	    tdc_max, dma_poolp->ndmas));
3037 
3038 	return (NXGE_OK);
3039 }
3040 
3041 nxge_status_t
3042 nxge_alloc_tx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
3043     p_nxge_dma_common_t *dmap, size_t alloc_size,
3044     size_t block_size, uint32_t *num_chunks)
3045 {
3046 	p_nxge_dma_common_t 	tx_dmap;
3047 	nxge_status_t		status = NXGE_OK;
3048 	size_t			total_alloc_size;
3049 	size_t			allocated = 0;
3050 	int			i, size_index, array_size;
3051 
3052 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_buf_dma"));
3053 
3054 	tx_dmap = (p_nxge_dma_common_t)
3055 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
3056 	    KM_SLEEP);
3057 
3058 	total_alloc_size = alloc_size;
3059 	i = 0;
3060 	size_index = 0;
3061 	array_size =  sizeof (alloc_sizes) /  sizeof (size_t);
3062 	while ((alloc_sizes[size_index] < alloc_size) &&
3063 	    (size_index < array_size))
3064 		size_index++;
3065 	if (size_index >= array_size) {
3066 		size_index = array_size - 1;
3067 	}
3068 
3069 	while ((allocated < total_alloc_size) &&
3070 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
3071 
3072 		tx_dmap[i].dma_chunk_index = i;
3073 		tx_dmap[i].block_size = block_size;
3074 		tx_dmap[i].alength = alloc_sizes[size_index];
3075 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
3076 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
3077 		tx_dmap[i].dma_channel = dma_channel;
3078 		tx_dmap[i].contig_alloc_type = B_FALSE;
3079 		tx_dmap[i].kmem_alloc_type = B_FALSE;
3080 
3081 		/*
3082 		 * N2/NIU: data buffers must be contiguous as the driver
3083 		 *	   needs to call Hypervisor api to set up
3084 		 *	   logical pages.
3085 		 */
3086 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
3087 			tx_dmap[i].contig_alloc_type = B_TRUE;
3088 		}
3089 
3090 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3091 		    &nxge_tx_dma_attr,
3092 		    tx_dmap[i].alength,
3093 		    &nxge_dev_buf_dma_acc_attr,
3094 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
3095 		    (p_nxge_dma_common_t)(&tx_dmap[i]));
3096 		if (status != NXGE_OK) {
3097 			size_index--;
3098 		} else {
3099 			i++;
3100 			allocated += alloc_sizes[size_index];
3101 		}
3102 	}
3103 
3104 	if (allocated < total_alloc_size) {
3105 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3106 		    "==> nxge_alloc_tx_buf_dma: not enough channel %d: "
3107 		    "allocated 0x%x requested 0x%x",
3108 		    dma_channel,
3109 		    allocated, total_alloc_size));
3110 		status = NXGE_ERROR;
3111 		goto nxge_alloc_tx_mem_fail1;
3112 	}
3113 
3114 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3115 	    "==> nxge_alloc_tx_buf_dma: Allocated for channel %d: "
3116 	    "allocated 0x%x requested 0x%x",
3117 	    dma_channel,
3118 	    allocated, total_alloc_size));
3119 
3120 	*num_chunks = i;
3121 	*dmap = tx_dmap;
3122 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3123 	    "==> nxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
3124 	    *dmap, i));
3125 	goto nxge_alloc_tx_mem_exit;
3126 
3127 nxge_alloc_tx_mem_fail1:
3128 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
3129 
3130 nxge_alloc_tx_mem_exit:
3131 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3132 	    "<== nxge_alloc_tx_buf_dma status 0x%08x", status));
3133 
3134 	return (status);
3135 }
3136 
3137 /*ARGSUSED*/
3138 static void
3139 nxge_free_tx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
3140     uint32_t num_chunks)
3141 {
3142 	int		i;
3143 
3144 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_tx_buf_dma"));
3145 
3146 	if (dmap == 0)
3147 		return;
3148 
3149 	for (i = 0; i < num_chunks; i++) {
3150 		nxge_dma_mem_free(dmap++);
3151 	}
3152 
3153 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_tx_buf_dma"));
3154 }
3155 
3156 /*ARGSUSED*/
3157 nxge_status_t
3158 nxge_alloc_tx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
3159     p_nxge_dma_common_t *dmap, size_t size)
3160 {
3161 	p_nxge_dma_common_t 	tx_dmap;
3162 	nxge_status_t		status = NXGE_OK;
3163 
3164 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_cntl_dma"));
3165 	tx_dmap = (p_nxge_dma_common_t)
3166 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
3167 
3168 	tx_dmap->contig_alloc_type = B_FALSE;
3169 	tx_dmap->kmem_alloc_type = B_FALSE;
3170 
3171 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3172 	    &nxge_desc_dma_attr,
3173 	    size,
3174 	    &nxge_dev_desc_dma_acc_attr,
3175 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
3176 	    tx_dmap);
3177 	if (status != NXGE_OK) {
3178 		goto nxge_alloc_tx_cntl_dma_fail1;
3179 	}
3180 
3181 	*dmap = tx_dmap;
3182 	goto nxge_alloc_tx_cntl_dma_exit;
3183 
3184 nxge_alloc_tx_cntl_dma_fail1:
3185 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t));
3186 
3187 nxge_alloc_tx_cntl_dma_exit:
3188 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3189 	    "<== nxge_alloc_tx_cntl_dma status 0x%08x", status));
3190 
3191 	return (status);
3192 }
3193 
3194 /*ARGSUSED*/
3195 static void
3196 nxge_free_tx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
3197 {
3198 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_tx_cntl_dma"));
3199 
3200 	if (dmap == 0)
3201 		return;
3202 
3203 	nxge_dma_mem_free(dmap);
3204 
3205 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_tx_cntl_dma"));
3206 }
3207 
3208 /*
3209  * nxge_free_tx_mem_pool
3210  *
3211  *	This function frees all of the per-port TDC control data structures.
3212  *	The per-channel (TDC) data structures are freed when the channel
3213  *	is stopped.
3214  *
3215  * Arguments:
3216  * 	nxgep
3217  *
3218  * Notes:
3219  *
3220  * Context:
3221  *	Any domain
3222  */
3223 static void
3224 nxge_free_tx_mem_pool(p_nxge_t nxgep)
3225 {
3226 	int tdc_max = NXGE_MAX_TDCS;
3227 
3228 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_tx_mem_pool"));
3229 
3230 	if (!nxgep->tx_buf_pool_p || !nxgep->tx_buf_pool_p->buf_allocated) {
3231 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3232 		    "<== nxge_free_tx_mem_pool "
3233 		    "(null tx buf pool or buf not allocated"));
3234 		return;
3235 	}
3236 	if (!nxgep->tx_cntl_pool_p || !nxgep->tx_cntl_pool_p->buf_allocated) {
3237 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3238 		    "<== nxge_free_tx_mem_pool "
3239 		    "(null tx cntl buf pool or cntl buf not allocated"));
3240 		return;
3241 	}
3242 
3243 	/* 1. Free the mailboxes. */
3244 	KMEM_FREE(nxgep->tx_mbox_areas_p->txmbox_areas_p,
3245 	    sizeof (p_tx_mbox_t) * tdc_max);
3246 	KMEM_FREE(nxgep->tx_mbox_areas_p, sizeof (tx_mbox_areas_t));
3247 
3248 	nxgep->tx_mbox_areas_p = 0;
3249 
3250 	/* 2. Free the transmit ring arrays. */
3251 	KMEM_FREE(nxgep->tx_rings->rings,
3252 	    sizeof (p_tx_ring_t) * tdc_max);
3253 	KMEM_FREE(nxgep->tx_rings, sizeof (tx_rings_t));
3254 
3255 	nxgep->tx_rings = 0;
3256 
3257 	/* 3. Free the completion ring data structures. */
3258 	KMEM_FREE(nxgep->tx_cntl_pool_p->dma_buf_pool_p,
3259 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3260 	KMEM_FREE(nxgep->tx_cntl_pool_p, sizeof (nxge_dma_pool_t));
3261 
3262 	nxgep->tx_cntl_pool_p = 0;
3263 
3264 	/* 4. Free the data ring data structures. */
3265 	KMEM_FREE(nxgep->tx_buf_pool_p->num_chunks,
3266 	    sizeof (uint32_t) * tdc_max);
3267 	KMEM_FREE(nxgep->tx_buf_pool_p->dma_buf_pool_p,
3268 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3269 	KMEM_FREE(nxgep->tx_buf_pool_p, sizeof (nxge_dma_pool_t));
3270 
3271 	nxgep->tx_buf_pool_p = 0;
3272 
3273 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_tx_mem_pool"));
3274 }
3275 
3276 /*ARGSUSED*/
3277 static nxge_status_t
3278 nxge_dma_mem_alloc(p_nxge_t nxgep, dma_method_t method,
3279 	struct ddi_dma_attr *dma_attrp,
3280 	size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
3281 	p_nxge_dma_common_t dma_p)
3282 {
3283 	caddr_t 		kaddrp;
3284 	int			ddi_status = DDI_SUCCESS;
3285 	boolean_t		contig_alloc_type;
3286 	boolean_t		kmem_alloc_type;
3287 
3288 	contig_alloc_type = dma_p->contig_alloc_type;
3289 
3290 	if (contig_alloc_type && (nxgep->niu_type != N2_NIU)) {
3291 		/*
3292 		 * contig_alloc_type for contiguous memory only allowed
3293 		 * for N2/NIU.
3294 		 */
3295 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3296 		    "nxge_dma_mem_alloc: alloc type not allowed (%d)",
3297 		    dma_p->contig_alloc_type));
3298 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3299 	}
3300 
3301 	dma_p->dma_handle = NULL;
3302 	dma_p->acc_handle = NULL;
3303 	dma_p->kaddrp = dma_p->last_kaddrp = NULL;
3304 	dma_p->first_ioaddr_pp = dma_p->last_ioaddr_pp = NULL;
3305 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, dma_attrp,
3306 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
3307 	if (ddi_status != DDI_SUCCESS) {
3308 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3309 		    "nxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
3310 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3311 	}
3312 
3313 	kmem_alloc_type = dma_p->kmem_alloc_type;
3314 
3315 	switch (contig_alloc_type) {
3316 	case B_FALSE:
3317 		switch (kmem_alloc_type) {
3318 		case B_FALSE:
3319 			ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle,
3320 			    length,
3321 			    acc_attr_p,
3322 			    xfer_flags,
3323 			    DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
3324 			    &dma_p->acc_handle);
3325 			if (ddi_status != DDI_SUCCESS) {
3326 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3327 				    "nxge_dma_mem_alloc: "
3328 				    "ddi_dma_mem_alloc failed"));
3329 				ddi_dma_free_handle(&dma_p->dma_handle);
3330 				dma_p->dma_handle = NULL;
3331 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3332 			}
3333 			if (dma_p->alength < length) {
3334 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3335 				    "nxge_dma_mem_alloc:di_dma_mem_alloc "
3336 				    "< length."));
3337 				ddi_dma_mem_free(&dma_p->acc_handle);
3338 				ddi_dma_free_handle(&dma_p->dma_handle);
3339 				dma_p->acc_handle = NULL;
3340 				dma_p->dma_handle = NULL;
3341 				return (NXGE_ERROR);
3342 			}
3343 
3344 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3345 			    NULL,
3346 			    kaddrp, dma_p->alength, xfer_flags,
3347 			    DDI_DMA_DONTWAIT,
3348 			    0, &dma_p->dma_cookie, &dma_p->ncookies);
3349 			if (ddi_status != DDI_DMA_MAPPED) {
3350 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3351 				    "nxge_dma_mem_alloc: ddi_dma_addr_bind "
3352 				    "failed "
3353 				    "(staus 0x%x ncookies %d.)", ddi_status,
3354 				    dma_p->ncookies));
3355 				if (dma_p->acc_handle) {
3356 					ddi_dma_mem_free(&dma_p->acc_handle);
3357 					dma_p->acc_handle = NULL;
3358 				}
3359 				ddi_dma_free_handle(&dma_p->dma_handle);
3360 				dma_p->dma_handle = NULL;
3361 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3362 			}
3363 
3364 			if (dma_p->ncookies != 1) {
3365 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3366 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3367 				    "> 1 cookie"
3368 				    "(staus 0x%x ncookies %d.)", ddi_status,
3369 				    dma_p->ncookies));
3370 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3371 				if (dma_p->acc_handle) {
3372 					ddi_dma_mem_free(&dma_p->acc_handle);
3373 					dma_p->acc_handle = NULL;
3374 				}
3375 				ddi_dma_free_handle(&dma_p->dma_handle);
3376 				dma_p->dma_handle = NULL;
3377 				dma_p->acc_handle = NULL;
3378 				return (NXGE_ERROR);
3379 			}
3380 			break;
3381 
3382 		case B_TRUE:
3383 			kaddrp = KMEM_ALLOC(length, KM_NOSLEEP);
3384 			if (kaddrp == NULL) {
3385 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3386 				    "nxge_dma_mem_alloc:ddi_dma_mem_alloc "
3387 				    "kmem alloc failed"));
3388 				return (NXGE_ERROR);
3389 			}
3390 
3391 			dma_p->alength = length;
3392 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3393 			    NULL, kaddrp, dma_p->alength, xfer_flags,
3394 			    DDI_DMA_DONTWAIT, 0,
3395 			    &dma_p->dma_cookie, &dma_p->ncookies);
3396 			if (ddi_status != DDI_DMA_MAPPED) {
3397 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3398 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind: "
3399 				    "(kmem_alloc) failed kaddrp $%p length %d "
3400 				    "(staus 0x%x (%d) ncookies %d.)",
3401 				    kaddrp, length,
3402 				    ddi_status, ddi_status, dma_p->ncookies));
3403 				KMEM_FREE(kaddrp, length);
3404 				dma_p->acc_handle = NULL;
3405 				ddi_dma_free_handle(&dma_p->dma_handle);
3406 				dma_p->dma_handle = NULL;
3407 				dma_p->kaddrp = NULL;
3408 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3409 			}
3410 
3411 			if (dma_p->ncookies != 1) {
3412 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3413 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3414 				    "(kmem_alloc) > 1 cookie"
3415 				    "(staus 0x%x ncookies %d.)", ddi_status,
3416 				    dma_p->ncookies));
3417 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3418 				KMEM_FREE(kaddrp, length);
3419 				ddi_dma_free_handle(&dma_p->dma_handle);
3420 				dma_p->dma_handle = NULL;
3421 				dma_p->acc_handle = NULL;
3422 				dma_p->kaddrp = NULL;
3423 				return (NXGE_ERROR);
3424 			}
3425 
3426 			dma_p->kaddrp = kaddrp;
3427 
3428 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
3429 			    "nxge_dma_mem_alloc: kmem_alloc dmap $%p "
3430 			    "kaddr $%p alength %d",
3431 			    dma_p,
3432 			    kaddrp,
3433 			    dma_p->alength));
3434 			break;
3435 		}
3436 		break;
3437 
3438 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3439 	case B_TRUE:
3440 		kaddrp = (caddr_t)contig_mem_alloc(length);
3441 		if (kaddrp == NULL) {
3442 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3443 			    "nxge_dma_mem_alloc:contig_mem_alloc failed."));
3444 			ddi_dma_free_handle(&dma_p->dma_handle);
3445 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3446 		}
3447 
3448 		dma_p->alength = length;
3449 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
3450 		    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
3451 		    &dma_p->dma_cookie, &dma_p->ncookies);
3452 		if (ddi_status != DDI_DMA_MAPPED) {
3453 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3454 			    "nxge_dma_mem_alloc:di_dma_addr_bind failed "
3455 			    "(status 0x%x ncookies %d.)", ddi_status,
3456 			    dma_p->ncookies));
3457 
3458 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3459 			    "==> nxge_dma_mem_alloc: (not mapped)"
3460 			    "length %lu (0x%x) "
3461 			    "free contig kaddrp $%p "
3462 			    "va_to_pa $%p",
3463 			    length, length,
3464 			    kaddrp,
3465 			    va_to_pa(kaddrp)));
3466 
3467 
3468 			contig_mem_free((void *)kaddrp, length);
3469 			ddi_dma_free_handle(&dma_p->dma_handle);
3470 
3471 			dma_p->dma_handle = NULL;
3472 			dma_p->acc_handle = NULL;
3473 			dma_p->alength = NULL;
3474 			dma_p->kaddrp = NULL;
3475 
3476 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3477 		}
3478 
3479 		if (dma_p->ncookies != 1 ||
3480 		    (dma_p->dma_cookie.dmac_laddress == NULL)) {
3481 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3482 			    "nxge_dma_mem_alloc:di_dma_addr_bind > 1 "
3483 			    "cookie or "
3484 			    "dmac_laddress is NULL $%p size %d "
3485 			    " (status 0x%x ncookies %d.)",
3486 			    ddi_status,
3487 			    dma_p->dma_cookie.dmac_laddress,
3488 			    dma_p->dma_cookie.dmac_size,
3489 			    dma_p->ncookies));
3490 
3491 			contig_mem_free((void *)kaddrp, length);
3492 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3493 			ddi_dma_free_handle(&dma_p->dma_handle);
3494 
3495 			dma_p->alength = 0;
3496 			dma_p->dma_handle = NULL;
3497 			dma_p->acc_handle = NULL;
3498 			dma_p->kaddrp = NULL;
3499 
3500 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3501 		}
3502 		break;
3503 
3504 #else
3505 	case B_TRUE:
3506 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3507 		    "nxge_dma_mem_alloc: invalid alloc type for !sun4v"));
3508 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3509 #endif
3510 	}
3511 
3512 	dma_p->kaddrp = kaddrp;
3513 	dma_p->last_kaddrp = (unsigned char *)kaddrp +
3514 	    dma_p->alength - RXBUF_64B_ALIGNED;
3515 #if defined(__i386)
3516 	dma_p->ioaddr_pp =
3517 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
3518 #else
3519 	dma_p->ioaddr_pp = (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3520 #endif
3521 	dma_p->last_ioaddr_pp =
3522 #if defined(__i386)
3523 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress +
3524 #else
3525 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress +
3526 #endif
3527 	    dma_p->alength - RXBUF_64B_ALIGNED;
3528 
3529 	NPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
3530 
3531 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3532 	dma_p->orig_ioaddr_pp =
3533 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3534 	dma_p->orig_alength = length;
3535 	dma_p->orig_kaddrp = kaddrp;
3536 	dma_p->orig_vatopa = (uint64_t)va_to_pa(kaddrp);
3537 #endif
3538 
3539 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_dma_mem_alloc: "
3540 	    "dma buffer allocated: dma_p $%p "
3541 	    "return dmac_ladress from cookie $%p cookie dmac_size %d "
3542 	    "dma_p->ioaddr_p $%p "
3543 	    "dma_p->orig_ioaddr_p $%p "
3544 	    "orig_vatopa $%p "
3545 	    "alength %d (0x%x) "
3546 	    "kaddrp $%p "
3547 	    "length %d (0x%x)",
3548 	    dma_p,
3549 	    dma_p->dma_cookie.dmac_laddress, dma_p->dma_cookie.dmac_size,
3550 	    dma_p->ioaddr_pp,
3551 	    dma_p->orig_ioaddr_pp,
3552 	    dma_p->orig_vatopa,
3553 	    dma_p->alength, dma_p->alength,
3554 	    kaddrp,
3555 	    length, length));
3556 
3557 	return (NXGE_OK);
3558 }
3559 
3560 static void
3561 nxge_dma_mem_free(p_nxge_dma_common_t dma_p)
3562 {
3563 	if (dma_p->dma_handle != NULL) {
3564 		if (dma_p->ncookies) {
3565 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3566 			dma_p->ncookies = 0;
3567 		}
3568 		ddi_dma_free_handle(&dma_p->dma_handle);
3569 		dma_p->dma_handle = NULL;
3570 	}
3571 
3572 	if (dma_p->acc_handle != NULL) {
3573 		ddi_dma_mem_free(&dma_p->acc_handle);
3574 		dma_p->acc_handle = NULL;
3575 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3576 	}
3577 
3578 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3579 	if (dma_p->contig_alloc_type &&
3580 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3581 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_mem_free: "
3582 		    "kaddrp $%p (orig_kaddrp $%p)"
3583 		    "mem type %d ",
3584 		    "orig_alength %d "
3585 		    "alength 0x%x (%d)",
3586 		    dma_p->kaddrp,
3587 		    dma_p->orig_kaddrp,
3588 		    dma_p->contig_alloc_type,
3589 		    dma_p->orig_alength,
3590 		    dma_p->alength, dma_p->alength));
3591 
3592 		contig_mem_free(dma_p->orig_kaddrp, dma_p->orig_alength);
3593 		dma_p->orig_alength = NULL;
3594 		dma_p->orig_kaddrp = NULL;
3595 		dma_p->contig_alloc_type = B_FALSE;
3596 	}
3597 #endif
3598 	dma_p->kaddrp = NULL;
3599 	dma_p->alength = NULL;
3600 }
3601 
3602 static void
3603 nxge_dma_free_rx_data_buf(p_nxge_dma_common_t dma_p)
3604 {
3605 	uint64_t kaddr;
3606 	uint32_t buf_size;
3607 
3608 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "==> nxge_dma_free_rx_data_buf"));
3609 
3610 	if (dma_p->dma_handle != NULL) {
3611 		if (dma_p->ncookies) {
3612 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3613 			dma_p->ncookies = 0;
3614 		}
3615 		ddi_dma_free_handle(&dma_p->dma_handle);
3616 		dma_p->dma_handle = NULL;
3617 	}
3618 
3619 	if (dma_p->acc_handle != NULL) {
3620 		ddi_dma_mem_free(&dma_p->acc_handle);
3621 		dma_p->acc_handle = NULL;
3622 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3623 	}
3624 
3625 	NXGE_DEBUG_MSG((NULL, DMA_CTL,
3626 	    "==> nxge_dma_free_rx_data_buf: dmap $%p buf_alloc_state %d",
3627 	    dma_p,
3628 	    dma_p->buf_alloc_state));
3629 
3630 	if (!(dma_p->buf_alloc_state & BUF_ALLOCATED_WAIT_FREE)) {
3631 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3632 		    "<== nxge_dma_free_rx_data_buf: "
3633 		    "outstanding data buffers"));
3634 		return;
3635 	}
3636 
3637 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3638 	if (dma_p->contig_alloc_type &&
3639 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3640 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_free_rx_data_buf: "
3641 		    "kaddrp $%p (orig_kaddrp $%p)"
3642 		    "mem type %d ",
3643 		    "orig_alength %d "
3644 		    "alength 0x%x (%d)",
3645 		    dma_p->kaddrp,
3646 		    dma_p->orig_kaddrp,
3647 		    dma_p->contig_alloc_type,
3648 		    dma_p->orig_alength,
3649 		    dma_p->alength, dma_p->alength));
3650 
3651 		kaddr = (uint64_t)dma_p->orig_kaddrp;
3652 		buf_size = dma_p->orig_alength;
3653 		nxge_free_buf(CONTIG_MEM_ALLOC, kaddr, buf_size);
3654 		dma_p->orig_alength = NULL;
3655 		dma_p->orig_kaddrp = NULL;
3656 		dma_p->contig_alloc_type = B_FALSE;
3657 		dma_p->kaddrp = NULL;
3658 		dma_p->alength = NULL;
3659 		return;
3660 	}
3661 #endif
3662 
3663 	if (dma_p->kmem_alloc_type) {
3664 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3665 		    "nxge_dma_free_rx_data_buf: free kmem "
3666 		    "kaddrp $%p (orig_kaddrp $%p)"
3667 		    "alloc type %d "
3668 		    "orig_alength %d "
3669 		    "alength 0x%x (%d)",
3670 		    dma_p->kaddrp,
3671 		    dma_p->orig_kaddrp,
3672 		    dma_p->kmem_alloc_type,
3673 		    dma_p->orig_alength,
3674 		    dma_p->alength, dma_p->alength));
3675 #if defined(__i386)
3676 		kaddr = (uint64_t)(uint32_t)dma_p->kaddrp;
3677 #else
3678 		kaddr = (uint64_t)dma_p->kaddrp;
3679 #endif
3680 		buf_size = dma_p->orig_alength;
3681 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3682 		    "nxge_dma_free_rx_data_buf: free dmap $%p "
3683 		    "kaddr $%p buf_size %d",
3684 		    dma_p,
3685 		    kaddr, buf_size));
3686 		nxge_free_buf(KMEM_ALLOC, kaddr, buf_size);
3687 		dma_p->alength = 0;
3688 		dma_p->orig_alength = 0;
3689 		dma_p->kaddrp = NULL;
3690 		dma_p->kmem_alloc_type = B_FALSE;
3691 	}
3692 
3693 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "<== nxge_dma_free_rx_data_buf"));
3694 }
3695 
3696 /*
3697  *	nxge_m_start() -- start transmitting and receiving.
3698  *
3699  *	This function is called by the MAC layer when the first
3700  *	stream is open to prepare the hardware ready for sending
3701  *	and transmitting packets.
3702  */
3703 static int
3704 nxge_m_start(void *arg)
3705 {
3706 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3707 
3708 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_start"));
3709 
3710 	if (nxge_peu_reset_enable && !nxgep->nxge_link_poll_timerid) {
3711 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
3712 	}
3713 
3714 	MUTEX_ENTER(nxgep->genlock);
3715 	if (nxge_init(nxgep) != NXGE_OK) {
3716 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3717 		    "<== nxge_m_start: initialization failed"));
3718 		MUTEX_EXIT(nxgep->genlock);
3719 		return (EIO);
3720 	}
3721 
3722 	if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
3723 		goto nxge_m_start_exit;
3724 	/*
3725 	 * Start timer to check the system error and tx hangs
3726 	 */
3727 	if (!isLDOMguest(nxgep))
3728 		nxgep->nxge_timerid = nxge_start_timer(nxgep,
3729 		    nxge_check_hw_state, NXGE_CHECK_TIMER);
3730 #if	defined(sun4v)
3731 	else
3732 		nxge_hio_start_timer(nxgep);
3733 #endif
3734 
3735 	nxgep->link_notify = B_TRUE;
3736 
3737 	nxgep->nxge_mac_state = NXGE_MAC_STARTED;
3738 
3739 nxge_m_start_exit:
3740 	MUTEX_EXIT(nxgep->genlock);
3741 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_start"));
3742 	return (0);
3743 }
3744 
3745 
3746 static boolean_t
3747 nxge_check_groups_stopped(p_nxge_t nxgep)
3748 {
3749 	int	i;
3750 
3751 	for (i = 0; i < NXGE_MAX_RDC_GROUPS; i++) {
3752 		if (nxgep->rx_hio_groups[i].started)
3753 			return (B_FALSE);
3754 	}
3755 
3756 	return (B_TRUE);
3757 }
3758 
3759 /*
3760  *	nxge_m_stop(): stop transmitting and receiving.
3761  */
3762 static void
3763 nxge_m_stop(void *arg)
3764 {
3765 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3766 	boolean_t	groups_stopped;
3767 
3768 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_stop"));
3769 
3770 	groups_stopped = nxge_check_groups_stopped(nxgep);
3771 #ifdef later
3772 	ASSERT(groups_stopped == B_FALSE);
3773 #endif
3774 
3775 	if (!groups_stopped) {
3776 		cmn_err(CE_WARN, "nxge(%d): groups are not stopped!\n",
3777 		    nxgep->instance);
3778 		return;
3779 	}
3780 
3781 	MUTEX_ENTER(nxgep->genlock);
3782 	nxgep->nxge_mac_state = NXGE_MAC_STOPPING;
3783 
3784 	if (nxgep->nxge_timerid) {
3785 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
3786 		nxgep->nxge_timerid = 0;
3787 	}
3788 
3789 	nxge_uninit(nxgep);
3790 
3791 	nxgep->nxge_mac_state = NXGE_MAC_STOPPED;
3792 
3793 	MUTEX_EXIT(nxgep->genlock);
3794 
3795 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_stop"));
3796 }
3797 
3798 static int
3799 nxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
3800 {
3801 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3802 	struct 		ether_addr addrp;
3803 
3804 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3805 	    "==> nxge_m_multicst: add %d", add));
3806 
3807 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
3808 	if (add) {
3809 		if (nxge_add_mcast_addr(nxgep, &addrp)) {
3810 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3811 			    "<== nxge_m_multicst: add multicast failed"));
3812 			return (EINVAL);
3813 		}
3814 	} else {
3815 		if (nxge_del_mcast_addr(nxgep, &addrp)) {
3816 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3817 			    "<== nxge_m_multicst: del multicast failed"));
3818 			return (EINVAL);
3819 		}
3820 	}
3821 
3822 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_multicst"));
3823 
3824 	return (0);
3825 }
3826 
3827 static int
3828 nxge_m_promisc(void *arg, boolean_t on)
3829 {
3830 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3831 
3832 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3833 	    "==> nxge_m_promisc: on %d", on));
3834 
3835 	if (nxge_set_promisc(nxgep, on)) {
3836 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3837 		    "<== nxge_m_promisc: set promisc failed"));
3838 		return (EINVAL);
3839 	}
3840 
3841 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3842 	    "<== nxge_m_promisc: on %d", on));
3843 
3844 	return (0);
3845 }
3846 
3847 static void
3848 nxge_m_ioctl(void *arg,  queue_t *wq, mblk_t *mp)
3849 {
3850 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3851 	struct 		iocblk *iocp;
3852 	boolean_t 	need_privilege;
3853 	int 		err;
3854 	int 		cmd;
3855 
3856 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl"));
3857 
3858 	iocp = (struct iocblk *)mp->b_rptr;
3859 	iocp->ioc_error = 0;
3860 	need_privilege = B_TRUE;
3861 	cmd = iocp->ioc_cmd;
3862 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl: cmd 0x%08x", cmd));
3863 	switch (cmd) {
3864 	default:
3865 		miocnak(wq, mp, 0, EINVAL);
3866 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl: invalid"));
3867 		return;
3868 
3869 	case LB_GET_INFO_SIZE:
3870 	case LB_GET_INFO:
3871 	case LB_GET_MODE:
3872 		need_privilege = B_FALSE;
3873 		break;
3874 	case LB_SET_MODE:
3875 		break;
3876 
3877 
3878 	case NXGE_GET_MII:
3879 	case NXGE_PUT_MII:
3880 	case NXGE_GET64:
3881 	case NXGE_PUT64:
3882 	case NXGE_GET_TX_RING_SZ:
3883 	case NXGE_GET_TX_DESC:
3884 	case NXGE_TX_SIDE_RESET:
3885 	case NXGE_RX_SIDE_RESET:
3886 	case NXGE_GLOBAL_RESET:
3887 	case NXGE_RESET_MAC:
3888 	case NXGE_TX_REGS_DUMP:
3889 	case NXGE_RX_REGS_DUMP:
3890 	case NXGE_INT_REGS_DUMP:
3891 	case NXGE_VIR_INT_REGS_DUMP:
3892 	case NXGE_PUT_TCAM:
3893 	case NXGE_GET_TCAM:
3894 	case NXGE_RTRACE:
3895 	case NXGE_RDUMP:
3896 
3897 		need_privilege = B_FALSE;
3898 		break;
3899 	case NXGE_INJECT_ERR:
3900 		cmn_err(CE_NOTE, "!nxge_m_ioctl: Inject error\n");
3901 		nxge_err_inject(nxgep, wq, mp);
3902 		break;
3903 	}
3904 
3905 	if (need_privilege) {
3906 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
3907 		if (err != 0) {
3908 			miocnak(wq, mp, 0, err);
3909 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3910 			    "<== nxge_m_ioctl: no priv"));
3911 			return;
3912 		}
3913 	}
3914 
3915 	switch (cmd) {
3916 
3917 	case LB_GET_MODE:
3918 	case LB_SET_MODE:
3919 	case LB_GET_INFO_SIZE:
3920 	case LB_GET_INFO:
3921 		nxge_loopback_ioctl(nxgep, wq, mp, iocp);
3922 		break;
3923 
3924 	case NXGE_GET_MII:
3925 	case NXGE_PUT_MII:
3926 	case NXGE_PUT_TCAM:
3927 	case NXGE_GET_TCAM:
3928 	case NXGE_GET64:
3929 	case NXGE_PUT64:
3930 	case NXGE_GET_TX_RING_SZ:
3931 	case NXGE_GET_TX_DESC:
3932 	case NXGE_TX_SIDE_RESET:
3933 	case NXGE_RX_SIDE_RESET:
3934 	case NXGE_GLOBAL_RESET:
3935 	case NXGE_RESET_MAC:
3936 	case NXGE_TX_REGS_DUMP:
3937 	case NXGE_RX_REGS_DUMP:
3938 	case NXGE_INT_REGS_DUMP:
3939 	case NXGE_VIR_INT_REGS_DUMP:
3940 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
3941 		    "==> nxge_m_ioctl: cmd 0x%x", cmd));
3942 		nxge_hw_ioctl(nxgep, wq, mp, iocp);
3943 		break;
3944 	}
3945 
3946 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl"));
3947 }
3948 
3949 extern void nxge_rx_hw_blank(void *arg, time_t ticks, uint_t count);
3950 
3951 void
3952 nxge_mmac_kstat_update(p_nxge_t nxgep, int slot, boolean_t factory)
3953 {
3954 	p_nxge_mmac_stats_t mmac_stats;
3955 	int i;
3956 	nxge_mmac_t *mmac_info;
3957 
3958 	mmac_info = &nxgep->nxge_mmac_info;
3959 
3960 	mmac_stats = &nxgep->statsp->mmac_stats;
3961 	mmac_stats->mmac_max_cnt = mmac_info->num_mmac;
3962 	mmac_stats->mmac_avail_cnt = mmac_info->naddrfree;
3963 
3964 	for (i = 0; i < ETHERADDRL; i++) {
3965 		if (factory) {
3966 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3967 			    = mmac_info->factory_mac_pool[slot][
3968 			    (ETHERADDRL-1) - i];
3969 		} else {
3970 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3971 			    = mmac_info->mac_pool[slot].addr[
3972 			    (ETHERADDRL - 1) - i];
3973 		}
3974 	}
3975 }
3976 
3977 /*
3978  * nxge_altmac_set() -- Set an alternate MAC address
3979  */
3980 static int
3981 nxge_altmac_set(p_nxge_t nxgep, uint8_t *maddr, int slot,
3982 	int rdctbl, boolean_t usetbl)
3983 {
3984 	uint8_t addrn;
3985 	uint8_t portn;
3986 	npi_mac_addr_t altmac;
3987 	hostinfo_t mac_rdc;
3988 	p_nxge_class_pt_cfg_t clscfgp;
3989 
3990 
3991 	altmac.w2 = ((uint16_t)maddr[0] << 8) | ((uint16_t)maddr[1] & 0x0ff);
3992 	altmac.w1 = ((uint16_t)maddr[2] << 8) | ((uint16_t)maddr[3] & 0x0ff);
3993 	altmac.w0 = ((uint16_t)maddr[4] << 8) | ((uint16_t)maddr[5] & 0x0ff);
3994 
3995 	portn = nxgep->mac.portnum;
3996 	addrn = (uint8_t)slot - 1;
3997 
3998 	if (npi_mac_altaddr_entry(nxgep->npi_handle, OP_SET,
3999 	    nxgep->function_num, addrn, &altmac) != NPI_SUCCESS)
4000 		return (EIO);
4001 
4002 	/*
4003 	 * Set the rdc table number for the host info entry
4004 	 * for this mac address slot.
4005 	 */
4006 	clscfgp = (p_nxge_class_pt_cfg_t)&nxgep->class_config;
4007 	mac_rdc.value = 0;
4008 	if (usetbl)
4009 		mac_rdc.bits.w0.rdc_tbl_num = rdctbl;
4010 	else
4011 		mac_rdc.bits.w0.rdc_tbl_num =
4012 		    clscfgp->mac_host_info[addrn].rdctbl;
4013 	mac_rdc.bits.w0.mac_pref = clscfgp->mac_host_info[addrn].mpr_npr;
4014 
4015 	if (npi_mac_hostinfo_entry(nxgep->npi_handle, OP_SET,
4016 	    nxgep->function_num, addrn, &mac_rdc) != NPI_SUCCESS) {
4017 		return (EIO);
4018 	}
4019 
4020 	/*
4021 	 * Enable comparison with the alternate MAC address.
4022 	 * While the first alternate addr is enabled by bit 1 of register
4023 	 * BMAC_ALTAD_CMPEN, it is enabled by bit 0 of register
4024 	 * XMAC_ADDR_CMPEN, so slot needs to be converted to addrn
4025 	 * accordingly before calling npi_mac_altaddr_entry.
4026 	 */
4027 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4028 		addrn = (uint8_t)slot - 1;
4029 	else
4030 		addrn = (uint8_t)slot;
4031 
4032 	if (npi_mac_altaddr_enable(nxgep->npi_handle,
4033 	    nxgep->function_num, addrn) != NPI_SUCCESS) {
4034 		return (EIO);
4035 	}
4036 
4037 	return (0);
4038 }
4039 
4040 /*
4041  * nxeg_m_mmac_add_g() - find an unused address slot, set the address
4042  * value to the one specified, enable the port to start filtering on
4043  * the new MAC address.  Returns 0 on success.
4044  */
4045 int
4046 nxge_m_mmac_add_g(void *arg, const uint8_t *maddr, int rdctbl,
4047 	boolean_t usetbl)
4048 {
4049 	p_nxge_t nxgep = arg;
4050 	int slot;
4051 	nxge_mmac_t *mmac_info;
4052 	int err;
4053 	nxge_status_t status;
4054 
4055 	mutex_enter(nxgep->genlock);
4056 
4057 	/*
4058 	 * Make sure that nxge is initialized, if _start() has
4059 	 * not been called.
4060 	 */
4061 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4062 		status = nxge_init(nxgep);
4063 		if (status != NXGE_OK) {
4064 			mutex_exit(nxgep->genlock);
4065 			return (ENXIO);
4066 		}
4067 	}
4068 
4069 	mmac_info = &nxgep->nxge_mmac_info;
4070 	if (mmac_info->naddrfree == 0) {
4071 		mutex_exit(nxgep->genlock);
4072 		return (ENOSPC);
4073 	}
4074 
4075 	/*
4076 	 * 	Search for the first available slot. Because naddrfree
4077 	 * is not zero, we are guaranteed to find one.
4078 	 *	Each of the first two ports of Neptune has 16 alternate
4079 	 * MAC slots but only the first 7 (of 15) slots have assigned factory
4080 	 * MAC addresses. We first search among the slots without bundled
4081 	 * factory MACs. If we fail to find one in that range, then we
4082 	 * search the slots with bundled factory MACs.  A factory MAC
4083 	 * will be wasted while the slot is used with a user MAC address.
4084 	 * But the slot could be used by factory MAC again after calling
4085 	 * nxge_m_mmac_remove and nxge_m_mmac_reserve.
4086 	 */
4087 	for (slot = 0; slot <= mmac_info->num_mmac; slot++) {
4088 		if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
4089 			break;
4090 	}
4091 
4092 	ASSERT(slot <= mmac_info->num_mmac);
4093 
4094 	if ((err = nxge_altmac_set(nxgep, (uint8_t *)maddr, slot, rdctbl,
4095 	    usetbl)) != 0) {
4096 		mutex_exit(nxgep->genlock);
4097 		return (err);
4098 	}
4099 
4100 	bcopy(maddr, mmac_info->mac_pool[slot].addr, ETHERADDRL);
4101 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED;
4102 	mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
4103 	mmac_info->naddrfree--;
4104 	nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4105 
4106 	mutex_exit(nxgep->genlock);
4107 	return (0);
4108 }
4109 
4110 /*
4111  * Remove the specified mac address and update the HW not to filter
4112  * the mac address anymore.
4113  */
4114 int
4115 nxge_m_mmac_remove(void *arg, int slot)
4116 {
4117 	p_nxge_t nxgep = arg;
4118 	nxge_mmac_t *mmac_info;
4119 	uint8_t addrn;
4120 	uint8_t portn;
4121 	int err = 0;
4122 	nxge_status_t status;
4123 
4124 	mutex_enter(nxgep->genlock);
4125 
4126 	/*
4127 	 * Make sure that nxge is initialized, if _start() has
4128 	 * not been called.
4129 	 */
4130 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4131 		status = nxge_init(nxgep);
4132 		if (status != NXGE_OK) {
4133 			mutex_exit(nxgep->genlock);
4134 			return (ENXIO);
4135 		}
4136 	}
4137 
4138 	mmac_info = &nxgep->nxge_mmac_info;
4139 	if (slot < 1 || slot > mmac_info->num_mmac) {
4140 		mutex_exit(nxgep->genlock);
4141 		return (EINVAL);
4142 	}
4143 
4144 	portn = nxgep->mac.portnum;
4145 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4146 		addrn = (uint8_t)slot - 1;
4147 	else
4148 		addrn = (uint8_t)slot;
4149 
4150 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
4151 		if (npi_mac_altaddr_disable(nxgep->npi_handle, portn, addrn)
4152 		    == NPI_SUCCESS) {
4153 			mmac_info->naddrfree++;
4154 			mmac_info->mac_pool[slot].flags &= ~MMAC_SLOT_USED;
4155 			/*
4156 			 * Regardless if the MAC we just stopped filtering
4157 			 * is a user addr or a facory addr, we must set
4158 			 * the MMAC_VENDOR_ADDR flag if this slot has an
4159 			 * associated factory MAC to indicate that a factory
4160 			 * MAC is available.
4161 			 */
4162 			if (slot <= mmac_info->num_factory_mmac) {
4163 				mmac_info->mac_pool[slot].flags
4164 				    |= MMAC_VENDOR_ADDR;
4165 			}
4166 			/*
4167 			 * Clear mac_pool[slot].addr so that kstat shows 0
4168 			 * alternate MAC address if the slot is not used.
4169 			 * (But nxge_m_mmac_get returns the factory MAC even
4170 			 * when the slot is not used!)
4171 			 */
4172 			bzero(mmac_info->mac_pool[slot].addr, ETHERADDRL);
4173 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4174 		} else {
4175 			err = EIO;
4176 		}
4177 	} else {
4178 		err = EINVAL;
4179 	}
4180 
4181 	mutex_exit(nxgep->genlock);
4182 	return (err);
4183 }
4184 
4185 /*
4186  * The callback to query all the factory addresses. naddr must be the same as
4187  * the number of factory addresses (returned by MAC_CAPAB_MULTIFACTADDR), and
4188  * mcm_addr is the space allocated for keep all the addresses, whose size is
4189  * naddr * MAXMACADDRLEN.
4190  */
4191 static void
4192 nxge_m_getfactaddr(void *arg, uint_t naddr, uint8_t *addr)
4193 {
4194 	nxge_t		*nxgep = arg;
4195 	nxge_mmac_t	*mmac_info;
4196 	int		i;
4197 
4198 	mutex_enter(nxgep->genlock);
4199 
4200 	mmac_info = &nxgep->nxge_mmac_info;
4201 	ASSERT(naddr == mmac_info->num_factory_mmac);
4202 
4203 	for (i = 0; i < naddr; i++) {
4204 		bcopy(mmac_info->factory_mac_pool[i + 1],
4205 		    addr + i * MAXMACADDRLEN, ETHERADDRL);
4206 	}
4207 
4208 	mutex_exit(nxgep->genlock);
4209 }
4210 
4211 
4212 static boolean_t
4213 nxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
4214 {
4215 	nxge_t *nxgep = arg;
4216 	uint32_t *txflags = cap_data;
4217 
4218 	switch (cap) {
4219 	case MAC_CAPAB_HCKSUM:
4220 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4221 		    "==> nxge_m_getcapab: checksum %d", nxge_cksum_offload));
4222 		if (nxge_cksum_offload <= 1) {
4223 			*txflags = HCKSUM_INET_PARTIAL;
4224 		}
4225 		break;
4226 
4227 	case MAC_CAPAB_MULTIFACTADDR: {
4228 		mac_capab_multifactaddr_t	*mfacp = cap_data;
4229 
4230 		mutex_enter(nxgep->genlock);
4231 		mfacp->mcm_naddr = nxgep->nxge_mmac_info.num_factory_mmac;
4232 		mfacp->mcm_getaddr = nxge_m_getfactaddr;
4233 		mutex_exit(nxgep->genlock);
4234 		break;
4235 	}
4236 
4237 	case MAC_CAPAB_LSO: {
4238 		mac_capab_lso_t *cap_lso = cap_data;
4239 
4240 		if (nxgep->soft_lso_enable) {
4241 			if (nxge_cksum_offload <= 1) {
4242 				cap_lso->lso_flags = LSO_TX_BASIC_TCP_IPV4;
4243 				if (nxge_lso_max > NXGE_LSO_MAXLEN) {
4244 					nxge_lso_max = NXGE_LSO_MAXLEN;
4245 				}
4246 				cap_lso->lso_basic_tcp_ipv4.lso_max =
4247 				    nxge_lso_max;
4248 			}
4249 			break;
4250 		} else {
4251 			return (B_FALSE);
4252 		}
4253 	}
4254 
4255 	case MAC_CAPAB_RINGS: {
4256 		mac_capab_rings_t	*cap_rings = cap_data;
4257 		p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
4258 
4259 		mutex_enter(nxgep->genlock);
4260 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
4261 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4262 			cap_rings->mr_rnum = p_cfgp->max_rdcs;
4263 			cap_rings->mr_rget = nxge_fill_ring;
4264 			cap_rings->mr_gnum = p_cfgp->max_rdc_grpids;
4265 			cap_rings->mr_gget = nxge_hio_group_get;
4266 			cap_rings->mr_gaddring = nxge_group_add_ring;
4267 			cap_rings->mr_gremring = nxge_group_rem_ring;
4268 
4269 			NXGE_DEBUG_MSG((nxgep, RX_CTL,
4270 			    "==> nxge_m_getcapab: rx nrings[%d] ngroups[%d]",
4271 			    p_cfgp->max_rdcs, p_cfgp->max_rdc_grpids));
4272 		} else {
4273 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4274 			cap_rings->mr_rnum = p_cfgp->tdc.count;
4275 			cap_rings->mr_rget = nxge_fill_ring;
4276 			if (isLDOMservice(nxgep)) {
4277 				/* share capable */
4278 				/* Do not report the default ring: hence -1 */
4279 				cap_rings->mr_gnum =
4280 				    NXGE_MAX_TDC_GROUPS / nxgep->nports - 1;
4281 			} else {
4282 				cap_rings->mr_gnum = 0;
4283 			}
4284 
4285 			cap_rings->mr_gget = nxge_hio_group_get;
4286 			cap_rings->mr_gaddring = nxge_group_add_ring;
4287 			cap_rings->mr_gremring = nxge_group_rem_ring;
4288 
4289 			NXGE_DEBUG_MSG((nxgep, TX_CTL,
4290 			    "==> nxge_m_getcapab: tx rings # of rings %d",
4291 			    p_cfgp->tdc.count));
4292 		}
4293 		mutex_exit(nxgep->genlock);
4294 		break;
4295 	}
4296 
4297 #if defined(sun4v)
4298 	case MAC_CAPAB_SHARES: {
4299 		mac_capab_share_t *mshares = (mac_capab_share_t *)cap_data;
4300 
4301 		/*
4302 		 * Only the service domain driver responds to
4303 		 * this capability request.
4304 		 */
4305 		mutex_enter(nxgep->genlock);
4306 		if (isLDOMservice(nxgep)) {
4307 			mshares->ms_snum = 3;
4308 			mshares->ms_handle = (void *)nxgep;
4309 			mshares->ms_salloc = nxge_hio_share_alloc;
4310 			mshares->ms_sfree = nxge_hio_share_free;
4311 			mshares->ms_sadd = nxge_hio_share_add_group;
4312 			mshares->ms_sremove = nxge_hio_share_rem_group;
4313 			mshares->ms_squery = nxge_hio_share_query;
4314 			mshares->ms_sbind = nxge_hio_share_bind;
4315 			mshares->ms_sunbind = nxge_hio_share_unbind;
4316 			mutex_exit(nxgep->genlock);
4317 		} else {
4318 			mutex_exit(nxgep->genlock);
4319 			return (B_FALSE);
4320 		}
4321 		break;
4322 	}
4323 #endif
4324 	default:
4325 		return (B_FALSE);
4326 	}
4327 	return (B_TRUE);
4328 }
4329 
4330 static boolean_t
4331 nxge_param_locked(mac_prop_id_t pr_num)
4332 {
4333 	/*
4334 	 * All adv_* parameters are locked (read-only) while
4335 	 * the device is in any sort of loopback mode ...
4336 	 */
4337 	switch (pr_num) {
4338 		case MAC_PROP_ADV_1000FDX_CAP:
4339 		case MAC_PROP_EN_1000FDX_CAP:
4340 		case MAC_PROP_ADV_1000HDX_CAP:
4341 		case MAC_PROP_EN_1000HDX_CAP:
4342 		case MAC_PROP_ADV_100FDX_CAP:
4343 		case MAC_PROP_EN_100FDX_CAP:
4344 		case MAC_PROP_ADV_100HDX_CAP:
4345 		case MAC_PROP_EN_100HDX_CAP:
4346 		case MAC_PROP_ADV_10FDX_CAP:
4347 		case MAC_PROP_EN_10FDX_CAP:
4348 		case MAC_PROP_ADV_10HDX_CAP:
4349 		case MAC_PROP_EN_10HDX_CAP:
4350 		case MAC_PROP_AUTONEG:
4351 		case MAC_PROP_FLOWCTRL:
4352 			return (B_TRUE);
4353 	}
4354 	return (B_FALSE);
4355 }
4356 
4357 /*
4358  * callback functions for set/get of properties
4359  */
4360 static int
4361 nxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4362     uint_t pr_valsize, const void *pr_val)
4363 {
4364 	nxge_t		*nxgep = barg;
4365 	p_nxge_param_t	param_arr;
4366 	p_nxge_stats_t	statsp;
4367 	int		err = 0;
4368 	uint8_t		val;
4369 	uint32_t	cur_mtu, new_mtu, old_framesize;
4370 	link_flowctrl_t	fl;
4371 
4372 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_setprop"));
4373 	param_arr = nxgep->param_arr;
4374 	statsp = nxgep->statsp;
4375 	mutex_enter(nxgep->genlock);
4376 	if (statsp->port_stats.lb_mode != nxge_lb_normal &&
4377 	    nxge_param_locked(pr_num)) {
4378 		/*
4379 		 * All adv_* parameters are locked (read-only)
4380 		 * while the device is in any sort of loopback mode.
4381 		 */
4382 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4383 		    "==> nxge_m_setprop: loopback mode: read only"));
4384 		mutex_exit(nxgep->genlock);
4385 		return (EBUSY);
4386 	}
4387 
4388 	val = *(uint8_t *)pr_val;
4389 	switch (pr_num) {
4390 		case MAC_PROP_EN_1000FDX_CAP:
4391 			nxgep->param_en_1000fdx = val;
4392 			param_arr[param_anar_1000fdx].value = val;
4393 
4394 			goto reprogram;
4395 
4396 		case MAC_PROP_EN_100FDX_CAP:
4397 			nxgep->param_en_100fdx = val;
4398 			param_arr[param_anar_100fdx].value = val;
4399 
4400 			goto reprogram;
4401 
4402 		case MAC_PROP_EN_10FDX_CAP:
4403 			nxgep->param_en_10fdx = val;
4404 			param_arr[param_anar_10fdx].value = val;
4405 
4406 			goto reprogram;
4407 
4408 		case MAC_PROP_EN_1000HDX_CAP:
4409 		case MAC_PROP_EN_100HDX_CAP:
4410 		case MAC_PROP_EN_10HDX_CAP:
4411 		case MAC_PROP_ADV_1000FDX_CAP:
4412 		case MAC_PROP_ADV_1000HDX_CAP:
4413 		case MAC_PROP_ADV_100FDX_CAP:
4414 		case MAC_PROP_ADV_100HDX_CAP:
4415 		case MAC_PROP_ADV_10FDX_CAP:
4416 		case MAC_PROP_ADV_10HDX_CAP:
4417 		case MAC_PROP_STATUS:
4418 		case MAC_PROP_SPEED:
4419 		case MAC_PROP_DUPLEX:
4420 			err = EINVAL; /* cannot set read-only properties */
4421 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4422 			    "==> nxge_m_setprop:  read only property %d",
4423 			    pr_num));
4424 			break;
4425 
4426 		case MAC_PROP_AUTONEG:
4427 			param_arr[param_autoneg].value = val;
4428 
4429 			goto reprogram;
4430 
4431 		case MAC_PROP_MTU:
4432 			cur_mtu = nxgep->mac.default_mtu;
4433 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
4434 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4435 			    "==> nxge_m_setprop: set MTU: %d is_jumbo %d",
4436 			    new_mtu, nxgep->mac.is_jumbo));
4437 
4438 			if (new_mtu == cur_mtu) {
4439 				err = 0;
4440 				break;
4441 			}
4442 			if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
4443 				err = EBUSY;
4444 				break;
4445 			}
4446 			if (new_mtu < NXGE_DEFAULT_MTU ||
4447 			    new_mtu > NXGE_MAXIMUM_MTU) {
4448 				err = EINVAL;
4449 				break;
4450 			}
4451 
4452 			if ((new_mtu > NXGE_DEFAULT_MTU) &&
4453 			    !nxgep->mac.is_jumbo) {
4454 				err = EINVAL;
4455 				break;
4456 			}
4457 
4458 			old_framesize = (uint32_t)nxgep->mac.maxframesize;
4459 			nxgep->mac.maxframesize = (uint16_t)
4460 			    (new_mtu + NXGE_EHEADER_VLAN_CRC);
4461 			if (nxge_mac_set_framesize(nxgep)) {
4462 				nxgep->mac.maxframesize =
4463 				    (uint16_t)old_framesize;
4464 				err = EINVAL;
4465 				break;
4466 			}
4467 
4468 			err = mac_maxsdu_update(nxgep->mach, new_mtu);
4469 			if (err) {
4470 				nxgep->mac.maxframesize =
4471 				    (uint16_t)old_framesize;
4472 				err = EINVAL;
4473 				break;
4474 			}
4475 
4476 			nxgep->mac.default_mtu = new_mtu;
4477 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4478 			    "==> nxge_m_setprop: set MTU: %d maxframe %d",
4479 			    new_mtu, nxgep->mac.maxframesize));
4480 			break;
4481 
4482 		case MAC_PROP_FLOWCTRL:
4483 			bcopy(pr_val, &fl, sizeof (fl));
4484 			switch (fl) {
4485 			default:
4486 				err = EINVAL;
4487 				break;
4488 
4489 			case LINK_FLOWCTRL_NONE:
4490 				param_arr[param_anar_pause].value = 0;
4491 				break;
4492 
4493 			case LINK_FLOWCTRL_RX:
4494 				param_arr[param_anar_pause].value = 1;
4495 				break;
4496 
4497 			case LINK_FLOWCTRL_TX:
4498 			case LINK_FLOWCTRL_BI:
4499 				err = EINVAL;
4500 				break;
4501 			}
4502 
4503 reprogram:
4504 			if (err == 0) {
4505 				if (!nxge_param_link_update(nxgep)) {
4506 					err = EINVAL;
4507 				}
4508 			}
4509 			break;
4510 		case MAC_PROP_PRIVATE:
4511 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4512 			    "==> nxge_m_setprop: private property"));
4513 			err = nxge_set_priv_prop(nxgep, pr_name, pr_valsize,
4514 			    pr_val);
4515 			break;
4516 
4517 		default:
4518 			err = ENOTSUP;
4519 			break;
4520 	}
4521 
4522 	mutex_exit(nxgep->genlock);
4523 
4524 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4525 	    "<== nxge_m_setprop (return %d)", err));
4526 	return (err);
4527 }
4528 
4529 static int
4530 nxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4531     uint_t pr_flags, uint_t pr_valsize, void *pr_val, uint_t *perm)
4532 {
4533 	nxge_t 		*nxgep = barg;
4534 	p_nxge_param_t	param_arr = nxgep->param_arr;
4535 	p_nxge_stats_t	statsp = nxgep->statsp;
4536 	int		err = 0;
4537 	link_flowctrl_t	fl;
4538 	uint64_t	tmp = 0;
4539 	link_state_t	ls;
4540 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4541 
4542 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4543 	    "==> nxge_m_getprop: pr_num %d", pr_num));
4544 
4545 	if (pr_valsize == 0)
4546 		return (EINVAL);
4547 
4548 	*perm = MAC_PROP_PERM_RW;
4549 
4550 	if ((is_default) && (pr_num != MAC_PROP_PRIVATE)) {
4551 		err = nxge_get_def_val(nxgep, pr_num, pr_valsize, pr_val);
4552 		return (err);
4553 	}
4554 
4555 	bzero(pr_val, pr_valsize);
4556 	switch (pr_num) {
4557 		case MAC_PROP_DUPLEX:
4558 			*perm = MAC_PROP_PERM_READ;
4559 			*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
4560 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4561 			    "==> nxge_m_getprop: duplex mode %d",
4562 			    *(uint8_t *)pr_val));
4563 			break;
4564 
4565 		case MAC_PROP_SPEED:
4566 			if (pr_valsize < sizeof (uint64_t))
4567 				return (EINVAL);
4568 			*perm = MAC_PROP_PERM_READ;
4569 			tmp = statsp->mac_stats.link_speed * 1000000ull;
4570 			bcopy(&tmp, pr_val, sizeof (tmp));
4571 			break;
4572 
4573 		case MAC_PROP_STATUS:
4574 			if (pr_valsize < sizeof (link_state_t))
4575 				return (EINVAL);
4576 			*perm = MAC_PROP_PERM_READ;
4577 			if (!statsp->mac_stats.link_up)
4578 				ls = LINK_STATE_DOWN;
4579 			else
4580 				ls = LINK_STATE_UP;
4581 			bcopy(&ls, pr_val, sizeof (ls));
4582 			break;
4583 
4584 		case MAC_PROP_AUTONEG:
4585 			*(uint8_t *)pr_val =
4586 			    param_arr[param_autoneg].value;
4587 			break;
4588 
4589 		case MAC_PROP_FLOWCTRL:
4590 			if (pr_valsize < sizeof (link_flowctrl_t))
4591 				return (EINVAL);
4592 
4593 			fl = LINK_FLOWCTRL_NONE;
4594 			if (param_arr[param_anar_pause].value) {
4595 				fl = LINK_FLOWCTRL_RX;
4596 			}
4597 			bcopy(&fl, pr_val, sizeof (fl));
4598 			break;
4599 
4600 		case MAC_PROP_ADV_1000FDX_CAP:
4601 			*perm = MAC_PROP_PERM_READ;
4602 			*(uint8_t *)pr_val =
4603 			    param_arr[param_anar_1000fdx].value;
4604 			break;
4605 
4606 		case MAC_PROP_EN_1000FDX_CAP:
4607 			*(uint8_t *)pr_val = nxgep->param_en_1000fdx;
4608 			break;
4609 
4610 		case MAC_PROP_ADV_100FDX_CAP:
4611 			*perm = MAC_PROP_PERM_READ;
4612 			*(uint8_t *)pr_val =
4613 			    param_arr[param_anar_100fdx].value;
4614 			break;
4615 
4616 		case MAC_PROP_EN_100FDX_CAP:
4617 			*(uint8_t *)pr_val = nxgep->param_en_100fdx;
4618 			break;
4619 
4620 		case MAC_PROP_ADV_10FDX_CAP:
4621 			*perm = MAC_PROP_PERM_READ;
4622 			*(uint8_t *)pr_val =
4623 			    param_arr[param_anar_10fdx].value;
4624 			break;
4625 
4626 		case MAC_PROP_EN_10FDX_CAP:
4627 			*(uint8_t *)pr_val = nxgep->param_en_10fdx;
4628 			break;
4629 
4630 		case MAC_PROP_EN_1000HDX_CAP:
4631 		case MAC_PROP_EN_100HDX_CAP:
4632 		case MAC_PROP_EN_10HDX_CAP:
4633 		case MAC_PROP_ADV_1000HDX_CAP:
4634 		case MAC_PROP_ADV_100HDX_CAP:
4635 		case MAC_PROP_ADV_10HDX_CAP:
4636 			err = ENOTSUP;
4637 			break;
4638 
4639 		case MAC_PROP_PRIVATE:
4640 			err = nxge_get_priv_prop(nxgep, pr_name, pr_flags,
4641 			    pr_valsize, pr_val, perm);
4642 			break;
4643 		default:
4644 			err = EINVAL;
4645 			break;
4646 	}
4647 
4648 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_getprop"));
4649 
4650 	return (err);
4651 }
4652 
4653 /* ARGSUSED */
4654 static int
4655 nxge_set_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_valsize,
4656     const void *pr_val)
4657 {
4658 	p_nxge_param_t	param_arr = nxgep->param_arr;
4659 	int		err = 0;
4660 	long		result;
4661 
4662 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4663 	    "==> nxge_set_priv_prop: name %s", pr_name));
4664 
4665 	if (strcmp(pr_name, "_accept_jumbo") == 0) {
4666 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4667 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4668 		    "<== nxge_set_priv_prop: name %s "
4669 		    "pr_val %s result %d "
4670 		    "param %d is_jumbo %d",
4671 		    pr_name, pr_val, result,
4672 		    param_arr[param_accept_jumbo].value,
4673 		    nxgep->mac.is_jumbo));
4674 
4675 		if (result > 1 || result < 0) {
4676 			err = EINVAL;
4677 		} else {
4678 			if (nxgep->mac.is_jumbo ==
4679 			    (uint32_t)result) {
4680 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4681 				    "no change (%d %d)",
4682 				    nxgep->mac.is_jumbo,
4683 				    result));
4684 				return (0);
4685 			}
4686 		}
4687 
4688 		param_arr[param_accept_jumbo].value = result;
4689 		nxgep->mac.is_jumbo = B_FALSE;
4690 		if (result) {
4691 			nxgep->mac.is_jumbo = B_TRUE;
4692 		}
4693 
4694 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4695 		    "<== nxge_set_priv_prop: name %s (value %d) is_jumbo %d",
4696 		    pr_name, result, nxgep->mac.is_jumbo));
4697 
4698 		return (err);
4699 	}
4700 
4701 	/* Blanking */
4702 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
4703 		err = nxge_param_rx_intr_time(nxgep, NULL, NULL,
4704 		    (char *)pr_val,
4705 		    (caddr_t)&param_arr[param_rxdma_intr_time]);
4706 		if (err) {
4707 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4708 			    "<== nxge_set_priv_prop: "
4709 			    "unable to set (%s)", pr_name));
4710 			err = EINVAL;
4711 		} else {
4712 			err = 0;
4713 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4714 			    "<== nxge_set_priv_prop: "
4715 			    "set (%s)", pr_name));
4716 		}
4717 
4718 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4719 		    "<== nxge_set_priv_prop: name %s (value %d)",
4720 		    pr_name, result));
4721 
4722 		return (err);
4723 	}
4724 
4725 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
4726 		err = nxge_param_rx_intr_pkts(nxgep, NULL, NULL,
4727 		    (char *)pr_val,
4728 		    (caddr_t)&param_arr[param_rxdma_intr_pkts]);
4729 		if (err) {
4730 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4731 			    "<== nxge_set_priv_prop: "
4732 			    "unable to set (%s)", pr_name));
4733 			err = EINVAL;
4734 		} else {
4735 			err = 0;
4736 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4737 			    "<== nxge_set_priv_prop: "
4738 			    "set (%s)", pr_name));
4739 		}
4740 
4741 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4742 		    "<== nxge_set_priv_prop: name %s (value %d)",
4743 		    pr_name, result));
4744 
4745 		return (err);
4746 	}
4747 
4748 	/* Classification */
4749 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
4750 		if (pr_val == NULL) {
4751 			err = EINVAL;
4752 			return (err);
4753 		}
4754 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4755 
4756 		err = nxge_param_set_ip_opt(nxgep, NULL,
4757 		    NULL, (char *)pr_val,
4758 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
4759 
4760 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4761 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4762 		    pr_name, result));
4763 
4764 		return (err);
4765 	}
4766 
4767 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
4768 		if (pr_val == NULL) {
4769 			err = EINVAL;
4770 			return (err);
4771 		}
4772 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4773 
4774 		err = nxge_param_set_ip_opt(nxgep, NULL,
4775 		    NULL, (char *)pr_val,
4776 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
4777 
4778 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4779 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4780 		    pr_name, result));
4781 
4782 		return (err);
4783 	}
4784 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
4785 		if (pr_val == NULL) {
4786 			err = EINVAL;
4787 			return (err);
4788 		}
4789 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4790 
4791 		err = nxge_param_set_ip_opt(nxgep, NULL,
4792 		    NULL, (char *)pr_val,
4793 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
4794 
4795 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4796 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4797 		    pr_name, result));
4798 
4799 		return (err);
4800 	}
4801 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
4802 		if (pr_val == NULL) {
4803 			err = EINVAL;
4804 			return (err);
4805 		}
4806 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4807 
4808 		err = nxge_param_set_ip_opt(nxgep, NULL,
4809 		    NULL, (char *)pr_val,
4810 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
4811 
4812 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4813 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4814 		    pr_name, result));
4815 
4816 		return (err);
4817 	}
4818 
4819 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
4820 		if (pr_val == NULL) {
4821 			err = EINVAL;
4822 			return (err);
4823 		}
4824 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4825 
4826 		err = nxge_param_set_ip_opt(nxgep, NULL,
4827 		    NULL, (char *)pr_val,
4828 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
4829 
4830 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4831 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4832 		    pr_name, result));
4833 
4834 		return (err);
4835 	}
4836 
4837 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
4838 		if (pr_val == NULL) {
4839 			err = EINVAL;
4840 			return (err);
4841 		}
4842 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4843 
4844 		err = nxge_param_set_ip_opt(nxgep, NULL,
4845 		    NULL, (char *)pr_val,
4846 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
4847 
4848 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4849 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4850 		    pr_name, result));
4851 
4852 		return (err);
4853 	}
4854 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
4855 		if (pr_val == NULL) {
4856 			err = EINVAL;
4857 			return (err);
4858 		}
4859 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4860 
4861 		err = nxge_param_set_ip_opt(nxgep, NULL,
4862 		    NULL, (char *)pr_val,
4863 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
4864 
4865 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4866 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4867 		    pr_name, result));
4868 
4869 		return (err);
4870 	}
4871 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
4872 		if (pr_val == NULL) {
4873 			err = EINVAL;
4874 			return (err);
4875 		}
4876 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4877 
4878 		err = nxge_param_set_ip_opt(nxgep, NULL,
4879 		    NULL, (char *)pr_val,
4880 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
4881 
4882 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4883 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4884 		    pr_name, result));
4885 
4886 		return (err);
4887 	}
4888 
4889 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
4890 		if (pr_val == NULL) {
4891 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4892 			    "==> nxge_set_priv_prop: name %s (null)", pr_name));
4893 			err = EINVAL;
4894 			return (err);
4895 		}
4896 
4897 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4898 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4899 		    "<== nxge_set_priv_prop: name %s "
4900 		    "(lso %d pr_val %s value %d)",
4901 		    pr_name, nxgep->soft_lso_enable, pr_val, result));
4902 
4903 		if (result > 1 || result < 0) {
4904 			err = EINVAL;
4905 		} else {
4906 			if (nxgep->soft_lso_enable == (uint32_t)result) {
4907 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4908 				    "no change (%d %d)",
4909 				    nxgep->soft_lso_enable, result));
4910 				return (0);
4911 			}
4912 		}
4913 
4914 		nxgep->soft_lso_enable = (int)result;
4915 
4916 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4917 		    "<== nxge_set_priv_prop: name %s (value %d)",
4918 		    pr_name, result));
4919 
4920 		return (err);
4921 	}
4922 	/*
4923 	 * Commands like "ndd -set /dev/nxge0 adv_10gfdx_cap 1" cause the
4924 	 * following code to be executed.
4925 	 */
4926 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
4927 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4928 		    (caddr_t)&param_arr[param_anar_10gfdx]);
4929 		return (err);
4930 	}
4931 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
4932 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4933 		    (caddr_t)&param_arr[param_anar_pause]);
4934 		return (err);
4935 	}
4936 
4937 	return (EINVAL);
4938 }
4939 
4940 static int
4941 nxge_get_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_flags,
4942     uint_t pr_valsize, void *pr_val, uint_t *perm)
4943 {
4944 	p_nxge_param_t	param_arr = nxgep->param_arr;
4945 	char		valstr[MAXNAMELEN];
4946 	int		err = EINVAL;
4947 	uint_t		strsize;
4948 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4949 
4950 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4951 	    "==> nxge_get_priv_prop: property %s", pr_name));
4952 
4953 	/* function number */
4954 	if (strcmp(pr_name, "_function_number") == 0) {
4955 		if (is_default)
4956 			return (ENOTSUP);
4957 		*perm = MAC_PROP_PERM_READ;
4958 		(void) snprintf(valstr, sizeof (valstr), "%d",
4959 		    nxgep->function_num);
4960 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4961 		    "==> nxge_get_priv_prop: name %s "
4962 		    "(value %d valstr %s)",
4963 		    pr_name, nxgep->function_num, valstr));
4964 
4965 		err = 0;
4966 		goto done;
4967 	}
4968 
4969 	/* Neptune firmware version */
4970 	if (strcmp(pr_name, "_fw_version") == 0) {
4971 		if (is_default)
4972 			return (ENOTSUP);
4973 		*perm = MAC_PROP_PERM_READ;
4974 		(void) snprintf(valstr, sizeof (valstr), "%s",
4975 		    nxgep->vpd_info.ver);
4976 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4977 		    "==> nxge_get_priv_prop: name %s "
4978 		    "(value %d valstr %s)",
4979 		    pr_name, nxgep->vpd_info.ver, valstr));
4980 
4981 		err = 0;
4982 		goto done;
4983 	}
4984 
4985 	/* port PHY mode */
4986 	if (strcmp(pr_name, "_port_mode") == 0) {
4987 		if (is_default)
4988 			return (ENOTSUP);
4989 		*perm = MAC_PROP_PERM_READ;
4990 		switch (nxgep->mac.portmode) {
4991 		case PORT_1G_COPPER:
4992 			(void) snprintf(valstr, sizeof (valstr), "1G copper %s",
4993 			    nxgep->hot_swappable_phy ?
4994 			    "[Hot Swappable]" : "");
4995 			break;
4996 		case PORT_1G_FIBER:
4997 			(void) snprintf(valstr, sizeof (valstr), "1G fiber %s",
4998 			    nxgep->hot_swappable_phy ?
4999 			    "[hot swappable]" : "");
5000 			break;
5001 		case PORT_10G_COPPER:
5002 			(void) snprintf(valstr, sizeof (valstr),
5003 			    "10G copper %s",
5004 			    nxgep->hot_swappable_phy ?
5005 			    "[hot swappable]" : "");
5006 			break;
5007 		case PORT_10G_FIBER:
5008 			(void) snprintf(valstr, sizeof (valstr), "10G fiber %s",
5009 			    nxgep->hot_swappable_phy ?
5010 			    "[hot swappable]" : "");
5011 			break;
5012 		case PORT_10G_SERDES:
5013 			(void) snprintf(valstr, sizeof (valstr),
5014 			    "10G serdes %s", nxgep->hot_swappable_phy ?
5015 			    "[hot swappable]" : "");
5016 			break;
5017 		case PORT_1G_SERDES:
5018 			(void) snprintf(valstr, sizeof (valstr), "1G serdes %s",
5019 			    nxgep->hot_swappable_phy ?
5020 			    "[hot swappable]" : "");
5021 			break;
5022 		case PORT_1G_TN1010:
5023 			(void) snprintf(valstr, sizeof (valstr),
5024 			    "1G TN1010 copper %s", nxgep->hot_swappable_phy ?
5025 			    "[hot swappable]" : "");
5026 			break;
5027 		case PORT_10G_TN1010:
5028 			(void) snprintf(valstr, sizeof (valstr),
5029 			    "10G TN1010 copper %s", nxgep->hot_swappable_phy ?
5030 			    "[hot swappable]" : "");
5031 			break;
5032 		case PORT_1G_RGMII_FIBER:
5033 			(void) snprintf(valstr, sizeof (valstr),
5034 			    "1G rgmii fiber %s", nxgep->hot_swappable_phy ?
5035 			    "[hot swappable]" : "");
5036 			break;
5037 		case PORT_HSP_MODE:
5038 			(void) snprintf(valstr, sizeof (valstr),
5039 			    "phy not present[hot swappable]");
5040 			break;
5041 		default:
5042 			(void) snprintf(valstr, sizeof (valstr), "unknown %s",
5043 			    nxgep->hot_swappable_phy ?
5044 			    "[hot swappable]" : "");
5045 			break;
5046 		}
5047 
5048 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5049 		    "==> nxge_get_priv_prop: name %s (value %s)",
5050 		    pr_name, valstr));
5051 
5052 		err = 0;
5053 		goto done;
5054 	}
5055 
5056 	/* Hot swappable PHY */
5057 	if (strcmp(pr_name, "_hot_swap_phy") == 0) {
5058 		if (is_default)
5059 			return (ENOTSUP);
5060 		*perm = MAC_PROP_PERM_READ;
5061 		(void) snprintf(valstr, sizeof (valstr), "%s",
5062 		    nxgep->hot_swappable_phy ?
5063 		    "yes" : "no");
5064 
5065 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5066 		    "==> nxge_get_priv_prop: name %s "
5067 		    "(value %d valstr %s)",
5068 		    pr_name, nxgep->hot_swappable_phy, valstr));
5069 
5070 		err = 0;
5071 		goto done;
5072 	}
5073 
5074 
5075 	/* accept jumbo */
5076 	if (strcmp(pr_name, "_accept_jumbo") == 0) {
5077 		if (is_default)
5078 			(void) snprintf(valstr, sizeof (valstr),  "%d", 0);
5079 		else
5080 			(void) snprintf(valstr, sizeof (valstr),
5081 			    "%d", nxgep->mac.is_jumbo);
5082 		err = 0;
5083 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5084 		    "==> nxge_get_priv_prop: name %s (value %d (%d, %d))",
5085 		    pr_name,
5086 		    (uint32_t)param_arr[param_accept_jumbo].value,
5087 		    nxgep->mac.is_jumbo,
5088 		    nxge_jumbo_enable));
5089 
5090 		goto done;
5091 	}
5092 
5093 	/* Receive Interrupt Blanking Parameters */
5094 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
5095 		err = 0;
5096 		if (is_default) {
5097 			(void) snprintf(valstr, sizeof (valstr),
5098 			    "%d", RXDMA_RCR_TO_DEFAULT);
5099 			goto done;
5100 		}
5101 
5102 		(void) snprintf(valstr, sizeof (valstr), "%d",
5103 		    nxgep->intr_timeout);
5104 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5105 		    "==> nxge_get_priv_prop: name %s (value %d)",
5106 		    pr_name,
5107 		    (uint32_t)nxgep->intr_timeout));
5108 		goto done;
5109 	}
5110 
5111 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
5112 		err = 0;
5113 		if (is_default) {
5114 			(void) snprintf(valstr, sizeof (valstr),
5115 			    "%d", RXDMA_RCR_PTHRES_DEFAULT);
5116 			goto done;
5117 		}
5118 		(void) snprintf(valstr, sizeof (valstr), "%d",
5119 		    nxgep->intr_threshold);
5120 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5121 		    "==> nxge_get_priv_prop: name %s (value %d)",
5122 		    pr_name, (uint32_t)nxgep->intr_threshold));
5123 
5124 		goto done;
5125 	}
5126 
5127 	/* Classification and Load Distribution Configuration */
5128 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
5129 		if (is_default) {
5130 			(void) snprintf(valstr, sizeof (valstr), "%x",
5131 			    NXGE_CLASS_FLOW_GEN_SERVER);
5132 			err = 0;
5133 			goto done;
5134 		}
5135 		err = nxge_dld_get_ip_opt(nxgep,
5136 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
5137 
5138 		(void) snprintf(valstr, sizeof (valstr), "%x",
5139 		    (int)param_arr[param_class_opt_ipv4_tcp].value);
5140 
5141 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5142 		    "==> nxge_get_priv_prop: %s", valstr));
5143 		goto done;
5144 	}
5145 
5146 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
5147 		if (is_default) {
5148 			(void) snprintf(valstr, sizeof (valstr), "%x",
5149 			    NXGE_CLASS_FLOW_GEN_SERVER);
5150 			err = 0;
5151 			goto done;
5152 		}
5153 		err = nxge_dld_get_ip_opt(nxgep,
5154 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
5155 
5156 		(void) snprintf(valstr, sizeof (valstr), "%x",
5157 		    (int)param_arr[param_class_opt_ipv4_udp].value);
5158 
5159 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5160 		    "==> nxge_get_priv_prop: %s", valstr));
5161 		goto done;
5162 	}
5163 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
5164 		if (is_default) {
5165 			(void) snprintf(valstr, sizeof (valstr), "%x",
5166 			    NXGE_CLASS_FLOW_GEN_SERVER);
5167 			err = 0;
5168 			goto done;
5169 		}
5170 		err = nxge_dld_get_ip_opt(nxgep,
5171 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
5172 
5173 		(void) snprintf(valstr, sizeof (valstr), "%x",
5174 		    (int)param_arr[param_class_opt_ipv4_ah].value);
5175 
5176 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5177 		    "==> nxge_get_priv_prop: %s", valstr));
5178 		goto done;
5179 	}
5180 
5181 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
5182 		if (is_default) {
5183 			(void) snprintf(valstr, sizeof (valstr), "%x",
5184 			    NXGE_CLASS_FLOW_GEN_SERVER);
5185 			err = 0;
5186 			goto done;
5187 		}
5188 		err = nxge_dld_get_ip_opt(nxgep,
5189 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
5190 
5191 		(void) snprintf(valstr, sizeof (valstr), "%x",
5192 		    (int)param_arr[param_class_opt_ipv4_sctp].value);
5193 
5194 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5195 		    "==> nxge_get_priv_prop: %s", valstr));
5196 		goto done;
5197 	}
5198 
5199 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
5200 		if (is_default) {
5201 			(void) snprintf(valstr, sizeof (valstr), "%x",
5202 			    NXGE_CLASS_FLOW_GEN_SERVER);
5203 			err = 0;
5204 			goto done;
5205 		}
5206 		err = nxge_dld_get_ip_opt(nxgep,
5207 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
5208 
5209 		(void) snprintf(valstr, sizeof (valstr), "%x",
5210 		    (int)param_arr[param_class_opt_ipv6_tcp].value);
5211 
5212 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5213 		    "==> nxge_get_priv_prop: %s", valstr));
5214 		goto done;
5215 	}
5216 
5217 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
5218 		if (is_default) {
5219 			(void) snprintf(valstr, sizeof (valstr), "%x",
5220 			    NXGE_CLASS_FLOW_GEN_SERVER);
5221 			err = 0;
5222 			goto done;
5223 		}
5224 		err = nxge_dld_get_ip_opt(nxgep,
5225 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
5226 
5227 		(void) snprintf(valstr, sizeof (valstr), "%x",
5228 		    (int)param_arr[param_class_opt_ipv6_udp].value);
5229 
5230 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5231 		    "==> nxge_get_priv_prop: %s", valstr));
5232 		goto done;
5233 	}
5234 
5235 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
5236 		if (is_default) {
5237 			(void) snprintf(valstr, sizeof (valstr), "%x",
5238 			    NXGE_CLASS_FLOW_GEN_SERVER);
5239 			err = 0;
5240 			goto done;
5241 		}
5242 		err = nxge_dld_get_ip_opt(nxgep,
5243 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
5244 
5245 		(void) snprintf(valstr, sizeof (valstr), "%x",
5246 		    (int)param_arr[param_class_opt_ipv6_ah].value);
5247 
5248 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5249 		    "==> nxge_get_priv_prop: %s", valstr));
5250 		goto done;
5251 	}
5252 
5253 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
5254 		if (is_default) {
5255 			(void) snprintf(valstr, sizeof (valstr), "%x",
5256 			    NXGE_CLASS_FLOW_GEN_SERVER);
5257 			err = 0;
5258 			goto done;
5259 		}
5260 		err = nxge_dld_get_ip_opt(nxgep,
5261 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
5262 
5263 		(void) snprintf(valstr, sizeof (valstr), "%x",
5264 		    (int)param_arr[param_class_opt_ipv6_sctp].value);
5265 
5266 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5267 		    "==> nxge_get_priv_prop: %s", valstr));
5268 		goto done;
5269 	}
5270 
5271 	/* Software LSO */
5272 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
5273 		if (is_default) {
5274 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5275 			err = 0;
5276 			goto done;
5277 		}
5278 		(void) snprintf(valstr, sizeof (valstr),
5279 		    "%d", nxgep->soft_lso_enable);
5280 		err = 0;
5281 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5282 		    "==> nxge_get_priv_prop: name %s (value %d)",
5283 		    pr_name, nxgep->soft_lso_enable));
5284 
5285 		goto done;
5286 	}
5287 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5288 		err = 0;
5289 		if (is_default ||
5290 		    nxgep->param_arr[param_anar_10gfdx].value != 0) {
5291 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5292 			goto done;
5293 		} else {
5294 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5295 			goto done;
5296 		}
5297 	}
5298 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5299 		err = 0;
5300 		if (is_default ||
5301 		    nxgep->param_arr[param_anar_pause].value != 0) {
5302 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5303 			goto done;
5304 		} else {
5305 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5306 			goto done;
5307 		}
5308 	}
5309 
5310 done:
5311 	if (err == 0) {
5312 		strsize = (uint_t)strlen(valstr);
5313 		if (pr_valsize < strsize) {
5314 			err = ENOBUFS;
5315 		} else {
5316 			(void) strlcpy(pr_val, valstr, pr_valsize);
5317 		}
5318 	}
5319 
5320 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5321 	    "<== nxge_get_priv_prop: return %d", err));
5322 	return (err);
5323 }
5324 
5325 /*
5326  * Module loading and removing entry points.
5327  */
5328 
5329 DDI_DEFINE_STREAM_OPS(nxge_dev_ops, nulldev, nulldev, nxge_attach, nxge_detach,
5330     nodev, NULL, D_MP, NULL, nxge_quiesce);
5331 
5332 #define	NXGE_DESC_VER		"Sun NIU 10Gb Ethernet"
5333 
5334 /*
5335  * Module linkage information for the kernel.
5336  */
5337 static struct modldrv 	nxge_modldrv = {
5338 	&mod_driverops,
5339 	NXGE_DESC_VER,
5340 	&nxge_dev_ops
5341 };
5342 
5343 static struct modlinkage modlinkage = {
5344 	MODREV_1, (void *) &nxge_modldrv, NULL
5345 };
5346 
5347 int
5348 _init(void)
5349 {
5350 	int		status;
5351 
5352 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
5353 	mac_init_ops(&nxge_dev_ops, "nxge");
5354 	status = ddi_soft_state_init(&nxge_list, sizeof (nxge_t), 0);
5355 	if (status != 0) {
5356 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL,
5357 		    "failed to init device soft state"));
5358 		goto _init_exit;
5359 	}
5360 	status = mod_install(&modlinkage);
5361 	if (status != 0) {
5362 		ddi_soft_state_fini(&nxge_list);
5363 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL, "Mod install failed"));
5364 		goto _init_exit;
5365 	}
5366 
5367 	MUTEX_INIT(&nxge_common_lock, NULL, MUTEX_DRIVER, NULL);
5368 
5369 _init_exit:
5370 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_init status = 0x%X", status));
5371 
5372 	return (status);
5373 }
5374 
5375 int
5376 _fini(void)
5377 {
5378 	int		status;
5379 
5380 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
5381 
5382 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
5383 
5384 	if (nxge_mblks_pending)
5385 		return (EBUSY);
5386 
5387 	status = mod_remove(&modlinkage);
5388 	if (status != DDI_SUCCESS) {
5389 		NXGE_DEBUG_MSG((NULL, MOD_CTL,
5390 		    "Module removal failed 0x%08x",
5391 		    status));
5392 		goto _fini_exit;
5393 	}
5394 
5395 	mac_fini_ops(&nxge_dev_ops);
5396 
5397 	ddi_soft_state_fini(&nxge_list);
5398 
5399 	MUTEX_DESTROY(&nxge_common_lock);
5400 _fini_exit:
5401 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_fini status = 0x%08x", status));
5402 
5403 	return (status);
5404 }
5405 
5406 int
5407 _info(struct modinfo *modinfop)
5408 {
5409 	int		status;
5410 
5411 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
5412 	status = mod_info(&modlinkage, modinfop);
5413 	NXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
5414 
5415 	return (status);
5416 }
5417 
5418 /*ARGSUSED*/
5419 static int
5420 nxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5421 {
5422 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5423 	p_nxge_t		nxgep = rhp->nxgep;
5424 	uint32_t		channel;
5425 	p_tx_ring_t		ring;
5426 
5427 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5428 	ring = nxgep->tx_rings->rings[channel];
5429 
5430 	MUTEX_ENTER(&ring->lock);
5431 	ring->tx_ring_handle = rhp->ring_handle;
5432 	MUTEX_EXIT(&ring->lock);
5433 
5434 	return (0);
5435 }
5436 
5437 static void
5438 nxge_tx_ring_stop(mac_ring_driver_t rdriver)
5439 {
5440 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5441 	p_nxge_t		nxgep = rhp->nxgep;
5442 	uint32_t		channel;
5443 	p_tx_ring_t		ring;
5444 
5445 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5446 	ring = nxgep->tx_rings->rings[channel];
5447 
5448 	MUTEX_ENTER(&ring->lock);
5449 	ring->tx_ring_handle = (mac_ring_handle_t)NULL;
5450 	MUTEX_EXIT(&ring->lock);
5451 }
5452 
5453 static int
5454 nxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5455 {
5456 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5457 	p_nxge_t		nxgep = rhp->nxgep;
5458 	uint32_t		channel;
5459 	p_rx_rcr_ring_t		ring;
5460 	int			i;
5461 
5462 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5463 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5464 
5465 	MUTEX_ENTER(&ring->lock);
5466 
5467 	if (nxgep->rx_channel_started[channel] == B_TRUE) {
5468 		MUTEX_EXIT(&ring->lock);
5469 		return (0);
5470 	}
5471 
5472 	/* set rcr_ring */
5473 	for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5474 		if ((nxgep->ldgvp->ldvp[i].is_rxdma == 1) &&
5475 		    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5476 			ring->ldvp = &nxgep->ldgvp->ldvp[i];
5477 			ring->ldgp = nxgep->ldgvp->ldvp[i].ldgp;
5478 		}
5479 	}
5480 
5481 	nxgep->rx_channel_started[channel] = B_TRUE;
5482 	ring->rcr_mac_handle = rhp->ring_handle;
5483 	ring->rcr_gen_num = mr_gen_num;
5484 	MUTEX_EXIT(&ring->lock);
5485 
5486 	return (0);
5487 }
5488 
5489 static void
5490 nxge_rx_ring_stop(mac_ring_driver_t rdriver)
5491 {
5492 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5493 	p_nxge_t		nxgep = rhp->nxgep;
5494 	uint32_t		channel;
5495 	p_rx_rcr_ring_t		ring;
5496 
5497 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5498 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5499 
5500 	MUTEX_ENTER(&ring->lock);
5501 	nxgep->rx_channel_started[channel] = B_FALSE;
5502 	ring->rcr_mac_handle = NULL;
5503 	MUTEX_EXIT(&ring->lock);
5504 }
5505 
5506 /*
5507  * Callback funtion for MAC layer to register all rings.
5508  */
5509 static void
5510 nxge_fill_ring(void *arg, mac_ring_type_t rtype, const int rg_index,
5511     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
5512 {
5513 	p_nxge_t		nxgep = (p_nxge_t)arg;
5514 	p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
5515 
5516 	NXGE_DEBUG_MSG((nxgep, TX_CTL,
5517 	    "==> nxge_fill_ring 0x%x index %d", rtype, index));
5518 
5519 	switch (rtype) {
5520 	case MAC_RING_TYPE_TX: {
5521 		p_nxge_ring_handle_t	rhandlep;
5522 
5523 		NXGE_DEBUG_MSG((nxgep, TX_CTL,
5524 		    "==> nxge_fill_ring (TX) 0x%x index %d ntdcs %d",
5525 		    rtype, index, p_cfgp->tdc.count));
5526 
5527 		ASSERT((index >= 0) && (index < p_cfgp->tdc.count));
5528 		rhandlep = &nxgep->tx_ring_handles[index];
5529 		rhandlep->nxgep = nxgep;
5530 		rhandlep->index = index;
5531 		rhandlep->ring_handle = rh;
5532 
5533 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5534 		infop->mri_start = nxge_tx_ring_start;
5535 		infop->mri_stop = nxge_tx_ring_stop;
5536 		infop->mri_tx = nxge_tx_ring_send;
5537 
5538 		break;
5539 	}
5540 	case MAC_RING_TYPE_RX: {
5541 		p_nxge_ring_handle_t	rhandlep;
5542 		int			nxge_rindex;
5543 		mac_intr_t		nxge_mac_intr;
5544 
5545 		NXGE_DEBUG_MSG((nxgep, RX_CTL,
5546 		    "==> nxge_fill_ring (RX) 0x%x index %d nrdcs %d",
5547 		    rtype, index, p_cfgp->max_rdcs));
5548 
5549 		/*
5550 		 * 'index' is the ring index within the group.
5551 		 * Find the ring index in the nxge instance.
5552 		 */
5553 		nxge_rindex = nxge_get_rxring_index(nxgep, rg_index, index);
5554 
5555 		ASSERT((nxge_rindex >= 0) && (nxge_rindex < p_cfgp->max_rdcs));
5556 		rhandlep = &nxgep->rx_ring_handles[nxge_rindex];
5557 		rhandlep->nxgep = nxgep;
5558 		rhandlep->index = nxge_rindex;
5559 		rhandlep->ring_handle = rh;
5560 
5561 		/*
5562 		 * Entrypoint to enable interrupt (disable poll) and
5563 		 * disable interrupt (enable poll).
5564 		 */
5565 		nxge_mac_intr.mi_handle = (mac_intr_handle_t)rhandlep;
5566 		nxge_mac_intr.mi_enable = (mac_intr_enable_t)nxge_disable_poll;
5567 		nxge_mac_intr.mi_disable = (mac_intr_disable_t)nxge_enable_poll;
5568 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5569 		infop->mri_start = nxge_rx_ring_start;
5570 		infop->mri_stop = nxge_rx_ring_stop;
5571 		infop->mri_intr = nxge_mac_intr; /* ??? */
5572 		infop->mri_poll = nxge_rx_poll;
5573 
5574 		break;
5575 	}
5576 	default:
5577 		break;
5578 	}
5579 
5580 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_fill_ring 0x%x",
5581 	    rtype));
5582 }
5583 
5584 static void
5585 nxge_group_add_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5586     mac_ring_type_t type)
5587 {
5588 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5589 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5590 	nxge_t			*nxge;
5591 	nxge_grp_t		*grp;
5592 	nxge_rdc_grp_t		*rdc_grp;
5593 	uint16_t		channel;	/* device-wise ring id */
5594 	int			dev_gindex;
5595 	int			rv;
5596 
5597 	nxge = rgroup->nxgep;
5598 
5599 	switch (type) {
5600 	case MAC_RING_TYPE_TX:
5601 		/*
5602 		 * nxge_grp_dc_add takes a channel number which is a
5603 		 * "devise" ring ID.
5604 		 */
5605 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5606 
5607 		/*
5608 		 * Remove the ring from the default group
5609 		 */
5610 		if (rgroup->gindex != 0) {
5611 			(void) nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5612 		}
5613 
5614 		/*
5615 		 * nxge->tx_set.group[] is an array of groups indexed by
5616 		 * a "port" group ID.
5617 		 */
5618 		grp = nxge->tx_set.group[rgroup->gindex];
5619 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5620 		if (rv != 0) {
5621 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5622 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5623 		}
5624 		break;
5625 
5626 	case MAC_RING_TYPE_RX:
5627 		/*
5628 		 * nxge->rx_set.group[] is an array of groups indexed by
5629 		 * a "port" group ID.
5630 		 */
5631 		grp = nxge->rx_set.group[rgroup->gindex];
5632 
5633 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5634 		    rgroup->gindex;
5635 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5636 
5637 		/*
5638 		 * nxge_grp_dc_add takes a channel number which is a
5639 		 * "devise" ring ID.
5640 		 */
5641 		channel = nxge->pt_config.hw_config.start_rdc + rhandle->index;
5642 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_RX, channel);
5643 		if (rv != 0) {
5644 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5645 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5646 		}
5647 
5648 		rdc_grp->map |= (1 << channel);
5649 		rdc_grp->max_rdcs++;
5650 
5651 		(void) nxge_init_fzc_rdc_tbl(nxge, rgroup->rdctbl);
5652 		break;
5653 	}
5654 }
5655 
5656 static void
5657 nxge_group_rem_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5658     mac_ring_type_t type)
5659 {
5660 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5661 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5662 	nxge_t			*nxge;
5663 	uint16_t		channel;	/* device-wise ring id */
5664 	nxge_rdc_grp_t		*rdc_grp;
5665 	int			dev_gindex;
5666 
5667 	nxge = rgroup->nxgep;
5668 
5669 	switch (type) {
5670 	case MAC_RING_TYPE_TX:
5671 		dev_gindex = nxge->pt_config.hw_config.def_mac_txdma_grpid +
5672 		    rgroup->gindex;
5673 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5674 		nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5675 
5676 		/*
5677 		 * Add the ring back to the default group
5678 		 */
5679 		if (rgroup->gindex != 0) {
5680 			nxge_grp_t *grp;
5681 			grp = nxge->tx_set.group[0];
5682 			(void) nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5683 		}
5684 		break;
5685 
5686 	case MAC_RING_TYPE_RX:
5687 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5688 		    rgroup->gindex;
5689 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5690 		channel = rdc_grp->start_rdc + rhandle->index;
5691 		nxge_grp_dc_remove(nxge, VP_BOUND_RX, channel);
5692 
5693 		rdc_grp->map &= ~(1 << channel);
5694 		rdc_grp->max_rdcs--;
5695 
5696 		(void) nxge_init_fzc_rdc_tbl(nxge, rgroup->rdctbl);
5697 		break;
5698 	}
5699 }
5700 
5701 
5702 /*ARGSUSED*/
5703 static nxge_status_t
5704 nxge_add_intrs(p_nxge_t nxgep)
5705 {
5706 
5707 	int		intr_types;
5708 	int		type = 0;
5709 	int		ddi_status = DDI_SUCCESS;
5710 	nxge_status_t	status = NXGE_OK;
5711 
5712 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs"));
5713 
5714 	nxgep->nxge_intr_type.intr_registered = B_FALSE;
5715 	nxgep->nxge_intr_type.intr_enabled = B_FALSE;
5716 	nxgep->nxge_intr_type.msi_intx_cnt = 0;
5717 	nxgep->nxge_intr_type.intr_added = 0;
5718 	nxgep->nxge_intr_type.niu_msi_enable = B_FALSE;
5719 	nxgep->nxge_intr_type.intr_type = 0;
5720 
5721 	if (nxgep->niu_type == N2_NIU) {
5722 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5723 	} else if (nxge_msi_enable) {
5724 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5725 	}
5726 
5727 	/* Get the supported interrupt types */
5728 	if ((ddi_status = ddi_intr_get_supported_types(nxgep->dip, &intr_types))
5729 	    != DDI_SUCCESS) {
5730 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_intrs: "
5731 		    "ddi_intr_get_supported_types failed: status 0x%08x",
5732 		    ddi_status));
5733 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5734 	}
5735 	nxgep->nxge_intr_type.intr_types = intr_types;
5736 
5737 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5738 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5739 
5740 	/*
5741 	 * Solaris MSIX is not supported yet. use MSI for now.
5742 	 * nxge_msi_enable (1):
5743 	 *	1 - MSI		2 - MSI-X	others - FIXED
5744 	 */
5745 	switch (nxge_msi_enable) {
5746 	default:
5747 		type = DDI_INTR_TYPE_FIXED;
5748 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5749 		    "use fixed (intx emulation) type %08x",
5750 		    type));
5751 		break;
5752 
5753 	case 2:
5754 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5755 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5756 		if (intr_types & DDI_INTR_TYPE_MSIX) {
5757 			type = DDI_INTR_TYPE_MSIX;
5758 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5759 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5760 			    type));
5761 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
5762 			type = DDI_INTR_TYPE_MSI;
5763 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5764 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5765 			    type));
5766 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5767 			type = DDI_INTR_TYPE_FIXED;
5768 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5769 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5770 			    type));
5771 		}
5772 		break;
5773 
5774 	case 1:
5775 		if (intr_types & DDI_INTR_TYPE_MSI) {
5776 			type = DDI_INTR_TYPE_MSI;
5777 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5778 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5779 			    type));
5780 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
5781 			type = DDI_INTR_TYPE_MSIX;
5782 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5783 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5784 			    type));
5785 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5786 			type = DDI_INTR_TYPE_FIXED;
5787 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5788 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5789 			    type));
5790 		}
5791 	}
5792 
5793 	nxgep->nxge_intr_type.intr_type = type;
5794 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
5795 	    type == DDI_INTR_TYPE_FIXED) &&
5796 	    nxgep->nxge_intr_type.niu_msi_enable) {
5797 		if ((status = nxge_add_intrs_adv(nxgep)) != DDI_SUCCESS) {
5798 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5799 			    " nxge_add_intrs: "
5800 			    " nxge_add_intrs_adv failed: status 0x%08x",
5801 			    status));
5802 			return (status);
5803 		} else {
5804 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5805 			    "interrupts registered : type %d", type));
5806 			nxgep->nxge_intr_type.intr_registered = B_TRUE;
5807 
5808 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
5809 			    "\nAdded advanced nxge add_intr_adv "
5810 			    "intr type 0x%x\n", type));
5811 
5812 			return (status);
5813 		}
5814 	}
5815 
5816 	if (!nxgep->nxge_intr_type.intr_registered) {
5817 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_add_intrs: "
5818 		    "failed to register interrupts"));
5819 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5820 	}
5821 
5822 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_add_intrs"));
5823 	return (status);
5824 }
5825 
5826 static nxge_status_t
5827 nxge_add_intrs_adv(p_nxge_t nxgep)
5828 {
5829 	int		intr_type;
5830 	p_nxge_intr_t	intrp;
5831 
5832 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv"));
5833 
5834 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5835 	intr_type = intrp->intr_type;
5836 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv: type 0x%x",
5837 	    intr_type));
5838 
5839 	switch (intr_type) {
5840 	case DDI_INTR_TYPE_MSI: /* 0x2 */
5841 	case DDI_INTR_TYPE_MSIX: /* 0x4 */
5842 		return (nxge_add_intrs_adv_type(nxgep, intr_type));
5843 
5844 	case DDI_INTR_TYPE_FIXED: /* 0x1 */
5845 		return (nxge_add_intrs_adv_type_fix(nxgep, intr_type));
5846 
5847 	default:
5848 		return (NXGE_ERROR);
5849 	}
5850 }
5851 
5852 
5853 /*ARGSUSED*/
5854 static nxge_status_t
5855 nxge_add_intrs_adv_type(p_nxge_t nxgep, uint32_t int_type)
5856 {
5857 	dev_info_t		*dip = nxgep->dip;
5858 	p_nxge_ldg_t		ldgp;
5859 	p_nxge_intr_t		intrp;
5860 	uint_t			*inthandler;
5861 	void			*arg1, *arg2;
5862 	int			behavior;
5863 	int			nintrs, navail, nrequest;
5864 	int			nactual, nrequired;
5865 	int			inum = 0;
5866 	int			x, y;
5867 	int			ddi_status = DDI_SUCCESS;
5868 	nxge_status_t		status = NXGE_OK;
5869 
5870 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type"));
5871 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5872 	intrp->start_inum = 0;
5873 
5874 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
5875 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
5876 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5877 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
5878 		    "nintrs: %d", ddi_status, nintrs));
5879 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5880 	}
5881 
5882 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
5883 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
5884 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5885 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
5886 		    "nintrs: %d", ddi_status, navail));
5887 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5888 	}
5889 
5890 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
5891 	    "ddi_intr_get_navail() returned: nintrs %d, navail %d",
5892 	    nintrs, navail));
5893 
5894 	/* PSARC/2007/453 MSI-X interrupt limit override */
5895 	if (int_type == DDI_INTR_TYPE_MSIX) {
5896 		nrequest = nxge_create_msi_property(nxgep);
5897 		if (nrequest < navail) {
5898 			navail = nrequest;
5899 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5900 			    "nxge_add_intrs_adv_type: nintrs %d "
5901 			    "navail %d (nrequest %d)",
5902 			    nintrs, navail, nrequest));
5903 		}
5904 	}
5905 
5906 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
5907 		/* MSI must be power of 2 */
5908 		if ((navail & 16) == 16) {
5909 			navail = 16;
5910 		} else if ((navail & 8) == 8) {
5911 			navail = 8;
5912 		} else if ((navail & 4) == 4) {
5913 			navail = 4;
5914 		} else if ((navail & 2) == 2) {
5915 			navail = 2;
5916 		} else {
5917 			navail = 1;
5918 		}
5919 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5920 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
5921 		    "navail %d", nintrs, navail));
5922 	}
5923 
5924 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
5925 	    DDI_INTR_ALLOC_NORMAL);
5926 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
5927 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
5928 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
5929 	    navail, &nactual, behavior);
5930 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
5931 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5932 		    " ddi_intr_alloc() failed: %d",
5933 		    ddi_status));
5934 		kmem_free(intrp->htable, intrp->intr_size);
5935 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5936 	}
5937 
5938 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
5939 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
5940 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5941 		    " ddi_intr_get_pri() failed: %d",
5942 		    ddi_status));
5943 		/* Free already allocated interrupts */
5944 		for (y = 0; y < nactual; y++) {
5945 			(void) ddi_intr_free(intrp->htable[y]);
5946 		}
5947 
5948 		kmem_free(intrp->htable, intrp->intr_size);
5949 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5950 	}
5951 
5952 	nrequired = 0;
5953 	switch (nxgep->niu_type) {
5954 	default:
5955 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
5956 		break;
5957 
5958 	case N2_NIU:
5959 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
5960 		break;
5961 	}
5962 
5963 	if (status != NXGE_OK) {
5964 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5965 		    "nxge_add_intrs_adv_typ:nxge_ldgv_init "
5966 		    "failed: 0x%x", status));
5967 		/* Free already allocated interrupts */
5968 		for (y = 0; y < nactual; y++) {
5969 			(void) ddi_intr_free(intrp->htable[y]);
5970 		}
5971 
5972 		kmem_free(intrp->htable, intrp->intr_size);
5973 		return (status);
5974 	}
5975 
5976 	ldgp = nxgep->ldgvp->ldgp;
5977 	for (x = 0; x < nrequired; x++, ldgp++) {
5978 		ldgp->vector = (uint8_t)x;
5979 		ldgp->intdata = SID_DATA(ldgp->func, x);
5980 		arg1 = ldgp->ldvp;
5981 		arg2 = nxgep;
5982 		if (ldgp->nldvs == 1) {
5983 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
5984 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5985 			    "nxge_add_intrs_adv_type: "
5986 			    "arg1 0x%x arg2 0x%x: "
5987 			    "1-1 int handler (entry %d intdata 0x%x)\n",
5988 			    arg1, arg2,
5989 			    x, ldgp->intdata));
5990 		} else if (ldgp->nldvs > 1) {
5991 			inthandler = (uint_t *)ldgp->sys_intr_handler;
5992 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5993 			    "nxge_add_intrs_adv_type: "
5994 			    "arg1 0x%x arg2 0x%x: "
5995 			    "nldevs %d int handler "
5996 			    "(entry %d intdata 0x%x)\n",
5997 			    arg1, arg2,
5998 			    ldgp->nldvs, x, ldgp->intdata));
5999 		}
6000 
6001 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6002 		    "==> nxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
6003 		    "htable 0x%llx", x, intrp->htable[x]));
6004 
6005 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6006 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6007 		    != DDI_SUCCESS) {
6008 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6009 			    "==> nxge_add_intrs_adv_type: failed #%d "
6010 			    "status 0x%x", x, ddi_status));
6011 			for (y = 0; y < intrp->intr_added; y++) {
6012 				(void) ddi_intr_remove_handler(
6013 				    intrp->htable[y]);
6014 			}
6015 			/* Free already allocated intr */
6016 			for (y = 0; y < nactual; y++) {
6017 				(void) ddi_intr_free(intrp->htable[y]);
6018 			}
6019 			kmem_free(intrp->htable, intrp->intr_size);
6020 
6021 			(void) nxge_ldgv_uninit(nxgep);
6022 
6023 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6024 		}
6025 		intrp->intr_added++;
6026 	}
6027 
6028 	intrp->msi_intx_cnt = nactual;
6029 
6030 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6031 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
6032 	    navail, nactual,
6033 	    intrp->msi_intx_cnt,
6034 	    intrp->intr_added));
6035 
6036 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6037 
6038 	(void) nxge_intr_ldgv_init(nxgep);
6039 
6040 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type"));
6041 
6042 	return (status);
6043 }
6044 
6045 /*ARGSUSED*/
6046 static nxge_status_t
6047 nxge_add_intrs_adv_type_fix(p_nxge_t nxgep, uint32_t int_type)
6048 {
6049 	dev_info_t		*dip = nxgep->dip;
6050 	p_nxge_ldg_t		ldgp;
6051 	p_nxge_intr_t		intrp;
6052 	uint_t			*inthandler;
6053 	void			*arg1, *arg2;
6054 	int			behavior;
6055 	int			nintrs, navail;
6056 	int			nactual, nrequired;
6057 	int			inum = 0;
6058 	int			x, y;
6059 	int			ddi_status = DDI_SUCCESS;
6060 	nxge_status_t		status = NXGE_OK;
6061 
6062 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type_fix"));
6063 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6064 	intrp->start_inum = 0;
6065 
6066 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
6067 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
6068 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6069 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
6070 		    "nintrs: %d", status, nintrs));
6071 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6072 	}
6073 
6074 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
6075 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
6076 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6077 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
6078 		    "nintrs: %d", ddi_status, navail));
6079 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6080 	}
6081 
6082 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
6083 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
6084 	    nintrs, navail));
6085 
6086 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
6087 	    DDI_INTR_ALLOC_NORMAL);
6088 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
6089 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
6090 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
6091 	    navail, &nactual, behavior);
6092 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6093 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6094 		    " ddi_intr_alloc() failed: %d",
6095 		    ddi_status));
6096 		kmem_free(intrp->htable, intrp->intr_size);
6097 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6098 	}
6099 
6100 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6101 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6102 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6103 		    " ddi_intr_get_pri() failed: %d",
6104 		    ddi_status));
6105 		/* Free already allocated interrupts */
6106 		for (y = 0; y < nactual; y++) {
6107 			(void) ddi_intr_free(intrp->htable[y]);
6108 		}
6109 
6110 		kmem_free(intrp->htable, intrp->intr_size);
6111 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6112 	}
6113 
6114 	nrequired = 0;
6115 	switch (nxgep->niu_type) {
6116 	default:
6117 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6118 		break;
6119 
6120 	case N2_NIU:
6121 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6122 		break;
6123 	}
6124 
6125 	if (status != NXGE_OK) {
6126 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6127 		    "nxge_add_intrs_adv_type_fix:nxge_ldgv_init "
6128 		    "failed: 0x%x", status));
6129 		/* Free already allocated interrupts */
6130 		for (y = 0; y < nactual; y++) {
6131 			(void) ddi_intr_free(intrp->htable[y]);
6132 		}
6133 
6134 		kmem_free(intrp->htable, intrp->intr_size);
6135 		return (status);
6136 	}
6137 
6138 	ldgp = nxgep->ldgvp->ldgp;
6139 	for (x = 0; x < nrequired; x++, ldgp++) {
6140 		ldgp->vector = (uint8_t)x;
6141 		if (nxgep->niu_type != N2_NIU) {
6142 			ldgp->intdata = SID_DATA(ldgp->func, x);
6143 		}
6144 
6145 		arg1 = ldgp->ldvp;
6146 		arg2 = nxgep;
6147 		if (ldgp->nldvs == 1) {
6148 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
6149 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6150 			    "nxge_add_intrs_adv_type_fix: "
6151 			    "1-1 int handler(%d) ldg %d ldv %d "
6152 			    "arg1 $%p arg2 $%p\n",
6153 			    x, ldgp->ldg, ldgp->ldvp->ldv,
6154 			    arg1, arg2));
6155 		} else if (ldgp->nldvs > 1) {
6156 			inthandler = (uint_t *)ldgp->sys_intr_handler;
6157 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6158 			    "nxge_add_intrs_adv_type_fix: "
6159 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
6160 			    "arg1 0x%016llx arg2 0x%016llx\n",
6161 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
6162 			    arg1, arg2));
6163 		}
6164 
6165 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6166 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6167 		    != DDI_SUCCESS) {
6168 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6169 			    "==> nxge_add_intrs_adv_type_fix: failed #%d "
6170 			    "status 0x%x", x, ddi_status));
6171 			for (y = 0; y < intrp->intr_added; y++) {
6172 				(void) ddi_intr_remove_handler(
6173 				    intrp->htable[y]);
6174 			}
6175 			for (y = 0; y < nactual; y++) {
6176 				(void) ddi_intr_free(intrp->htable[y]);
6177 			}
6178 			/* Free already allocated intr */
6179 			kmem_free(intrp->htable, intrp->intr_size);
6180 
6181 			(void) nxge_ldgv_uninit(nxgep);
6182 
6183 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6184 		}
6185 		intrp->intr_added++;
6186 	}
6187 
6188 	intrp->msi_intx_cnt = nactual;
6189 
6190 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6191 
6192 	status = nxge_intr_ldgv_init(nxgep);
6193 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type_fix"));
6194 
6195 	return (status);
6196 }
6197 
6198 static void
6199 nxge_remove_intrs(p_nxge_t nxgep)
6200 {
6201 	int		i, inum;
6202 	p_nxge_intr_t	intrp;
6203 
6204 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs"));
6205 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6206 	if (!intrp->intr_registered) {
6207 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6208 		    "<== nxge_remove_intrs: interrupts not registered"));
6209 		return;
6210 	}
6211 
6212 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs:advanced"));
6213 
6214 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6215 		(void) ddi_intr_block_disable(intrp->htable,
6216 		    intrp->intr_added);
6217 	} else {
6218 		for (i = 0; i < intrp->intr_added; i++) {
6219 			(void) ddi_intr_disable(intrp->htable[i]);
6220 		}
6221 	}
6222 
6223 	for (inum = 0; inum < intrp->intr_added; inum++) {
6224 		if (intrp->htable[inum]) {
6225 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
6226 		}
6227 	}
6228 
6229 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
6230 		if (intrp->htable[inum]) {
6231 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6232 			    "nxge_remove_intrs: ddi_intr_free inum %d "
6233 			    "msi_intx_cnt %d intr_added %d",
6234 			    inum,
6235 			    intrp->msi_intx_cnt,
6236 			    intrp->intr_added));
6237 
6238 			(void) ddi_intr_free(intrp->htable[inum]);
6239 		}
6240 	}
6241 
6242 	kmem_free(intrp->htable, intrp->intr_size);
6243 	intrp->intr_registered = B_FALSE;
6244 	intrp->intr_enabled = B_FALSE;
6245 	intrp->msi_intx_cnt = 0;
6246 	intrp->intr_added = 0;
6247 
6248 	(void) nxge_ldgv_uninit(nxgep);
6249 
6250 	(void) ddi_prop_remove(DDI_DEV_T_NONE, nxgep->dip,
6251 	    "#msix-request");
6252 
6253 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_intrs"));
6254 }
6255 
6256 /*ARGSUSED*/
6257 static void
6258 nxge_intrs_enable(p_nxge_t nxgep)
6259 {
6260 	p_nxge_intr_t	intrp;
6261 	int		i;
6262 	int		status;
6263 
6264 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable"));
6265 
6266 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6267 
6268 	if (!intrp->intr_registered) {
6269 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_intrs_enable: "
6270 		    "interrupts are not registered"));
6271 		return;
6272 	}
6273 
6274 	if (intrp->intr_enabled) {
6275 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6276 		    "<== nxge_intrs_enable: already enabled"));
6277 		return;
6278 	}
6279 
6280 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6281 		status = ddi_intr_block_enable(intrp->htable,
6282 		    intrp->intr_added);
6283 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6284 		    "block enable - status 0x%x total inums #%d\n",
6285 		    status, intrp->intr_added));
6286 	} else {
6287 		for (i = 0; i < intrp->intr_added; i++) {
6288 			status = ddi_intr_enable(intrp->htable[i]);
6289 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6290 			    "ddi_intr_enable:enable - status 0x%x "
6291 			    "total inums %d enable inum #%d\n",
6292 			    status, intrp->intr_added, i));
6293 			if (status == DDI_SUCCESS) {
6294 				intrp->intr_enabled = B_TRUE;
6295 			}
6296 		}
6297 	}
6298 
6299 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_enable"));
6300 }
6301 
6302 /*ARGSUSED*/
6303 static void
6304 nxge_intrs_disable(p_nxge_t nxgep)
6305 {
6306 	p_nxge_intr_t	intrp;
6307 	int		i;
6308 
6309 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_disable"));
6310 
6311 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6312 
6313 	if (!intrp->intr_registered) {
6314 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable: "
6315 		    "interrupts are not registered"));
6316 		return;
6317 	}
6318 
6319 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6320 		(void) ddi_intr_block_disable(intrp->htable,
6321 		    intrp->intr_added);
6322 	} else {
6323 		for (i = 0; i < intrp->intr_added; i++) {
6324 			(void) ddi_intr_disable(intrp->htable[i]);
6325 		}
6326 	}
6327 
6328 	intrp->intr_enabled = B_FALSE;
6329 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable"));
6330 }
6331 
6332 static nxge_status_t
6333 nxge_mac_register(p_nxge_t nxgep)
6334 {
6335 	mac_register_t *macp;
6336 	int		status;
6337 
6338 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_mac_register"));
6339 
6340 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
6341 		return (NXGE_ERROR);
6342 
6343 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
6344 	macp->m_driver = nxgep;
6345 	macp->m_dip = nxgep->dip;
6346 	macp->m_src_addr = nxgep->ouraddr.ether_addr_octet;
6347 	macp->m_callbacks = &nxge_m_callbacks;
6348 	macp->m_min_sdu = 0;
6349 	nxgep->mac.default_mtu = nxgep->mac.maxframesize -
6350 	    NXGE_EHEADER_VLAN_CRC;
6351 	macp->m_max_sdu = nxgep->mac.default_mtu;
6352 	macp->m_margin = VLAN_TAGSZ;
6353 	macp->m_priv_props = nxge_priv_props;
6354 	macp->m_priv_prop_count = NXGE_MAX_PRIV_PROPS;
6355 	macp->m_v12n = MAC_VIRT_HIO | MAC_VIRT_LEVEL1 | MAC_VIRT_SERIALIZE;
6356 
6357 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
6358 	    "==> nxge_mac_register: instance %d "
6359 	    "max_sdu %d margin %d maxframe %d (header %d)",
6360 	    nxgep->instance,
6361 	    macp->m_max_sdu, macp->m_margin,
6362 	    nxgep->mac.maxframesize,
6363 	    NXGE_EHEADER_VLAN_CRC));
6364 
6365 	status = mac_register(macp, &nxgep->mach);
6366 	mac_free(macp);
6367 
6368 	if (status != 0) {
6369 		cmn_err(CE_WARN,
6370 		    "!nxge_mac_register failed (status %d instance %d)",
6371 		    status, nxgep->instance);
6372 		return (NXGE_ERROR);
6373 	}
6374 
6375 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_mac_register success "
6376 	    "(instance %d)", nxgep->instance));
6377 
6378 	return (NXGE_OK);
6379 }
6380 
6381 void
6382 nxge_err_inject(p_nxge_t nxgep, queue_t *wq, mblk_t *mp)
6383 {
6384 	ssize_t		size;
6385 	mblk_t		*nmp;
6386 	uint8_t		blk_id;
6387 	uint8_t		chan;
6388 	uint32_t	err_id;
6389 	err_inject_t	*eip;
6390 
6391 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_err_inject"));
6392 
6393 	size = 1024;
6394 	nmp = mp->b_cont;
6395 	eip = (err_inject_t *)nmp->b_rptr;
6396 	blk_id = eip->blk_id;
6397 	err_id = eip->err_id;
6398 	chan = eip->chan;
6399 	cmn_err(CE_NOTE, "!blk_id = 0x%x\n", blk_id);
6400 	cmn_err(CE_NOTE, "!err_id = 0x%x\n", err_id);
6401 	cmn_err(CE_NOTE, "!chan = 0x%x\n", chan);
6402 	switch (blk_id) {
6403 	case MAC_BLK_ID:
6404 		break;
6405 	case TXMAC_BLK_ID:
6406 		break;
6407 	case RXMAC_BLK_ID:
6408 		break;
6409 	case MIF_BLK_ID:
6410 		break;
6411 	case IPP_BLK_ID:
6412 		nxge_ipp_inject_err(nxgep, err_id);
6413 		break;
6414 	case TXC_BLK_ID:
6415 		nxge_txc_inject_err(nxgep, err_id);
6416 		break;
6417 	case TXDMA_BLK_ID:
6418 		nxge_txdma_inject_err(nxgep, err_id, chan);
6419 		break;
6420 	case RXDMA_BLK_ID:
6421 		nxge_rxdma_inject_err(nxgep, err_id, chan);
6422 		break;
6423 	case ZCP_BLK_ID:
6424 		nxge_zcp_inject_err(nxgep, err_id);
6425 		break;
6426 	case ESPC_BLK_ID:
6427 		break;
6428 	case FFLP_BLK_ID:
6429 		break;
6430 	case PHY_BLK_ID:
6431 		break;
6432 	case ETHER_SERDES_BLK_ID:
6433 		break;
6434 	case PCIE_SERDES_BLK_ID:
6435 		break;
6436 	case VIR_BLK_ID:
6437 		break;
6438 	}
6439 
6440 	nmp->b_wptr = nmp->b_rptr + size;
6441 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "<== nxge_err_inject"));
6442 
6443 	miocack(wq, mp, (int)size, 0);
6444 }
6445 
6446 static int
6447 nxge_init_common_dev(p_nxge_t nxgep)
6448 {
6449 	p_nxge_hw_list_t	hw_p;
6450 	dev_info_t 		*p_dip;
6451 
6452 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_init_common_device"));
6453 
6454 	p_dip = nxgep->p_dip;
6455 	MUTEX_ENTER(&nxge_common_lock);
6456 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6457 	    "==> nxge_init_common_dev:func # %d",
6458 	    nxgep->function_num));
6459 	/*
6460 	 * Loop through existing per neptune hardware list.
6461 	 */
6462 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6463 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6464 		    "==> nxge_init_common_device:func # %d "
6465 		    "hw_p $%p parent dip $%p",
6466 		    nxgep->function_num,
6467 		    hw_p,
6468 		    p_dip));
6469 		if (hw_p->parent_devp == p_dip) {
6470 			nxgep->nxge_hw_p = hw_p;
6471 			hw_p->ndevs++;
6472 			hw_p->nxge_p[nxgep->function_num] = nxgep;
6473 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6474 			    "==> nxge_init_common_device:func # %d "
6475 			    "hw_p $%p parent dip $%p "
6476 			    "ndevs %d (found)",
6477 			    nxgep->function_num,
6478 			    hw_p,
6479 			    p_dip,
6480 			    hw_p->ndevs));
6481 			break;
6482 		}
6483 	}
6484 
6485 	if (hw_p == NULL) {
6486 
6487 		char **prop_val;
6488 		uint_t prop_len;
6489 		int i;
6490 
6491 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6492 		    "==> nxge_init_common_device:func # %d "
6493 		    "parent dip $%p (new)",
6494 		    nxgep->function_num,
6495 		    p_dip));
6496 		hw_p = kmem_zalloc(sizeof (nxge_hw_list_t), KM_SLEEP);
6497 		hw_p->parent_devp = p_dip;
6498 		hw_p->magic = NXGE_NEPTUNE_MAGIC;
6499 		nxgep->nxge_hw_p = hw_p;
6500 		hw_p->ndevs++;
6501 		hw_p->nxge_p[nxgep->function_num] = nxgep;
6502 		hw_p->next = nxge_hw_list;
6503 		if (nxgep->niu_type == N2_NIU) {
6504 			hw_p->niu_type = N2_NIU;
6505 			hw_p->platform_type = P_NEPTUNE_NIU;
6506 		} else {
6507 			hw_p->niu_type = NIU_TYPE_NONE;
6508 			hw_p->platform_type = P_NEPTUNE_NONE;
6509 		}
6510 
6511 		MUTEX_INIT(&hw_p->nxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
6512 		MUTEX_INIT(&hw_p->nxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
6513 		MUTEX_INIT(&hw_p->nxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
6514 		MUTEX_INIT(&hw_p->nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
6515 
6516 		nxge_hw_list = hw_p;
6517 
6518 		if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, nxgep->dip, 0,
6519 		    "compatible", &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
6520 			for (i = 0; i < prop_len; i++) {
6521 				if ((strcmp((caddr_t)prop_val[i],
6522 				    NXGE_ROCK_COMPATIBLE) == 0)) {
6523 					hw_p->platform_type = P_NEPTUNE_ROCK;
6524 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6525 					    "ROCK hw_p->platform_type %d",
6526 					    hw_p->platform_type));
6527 					break;
6528 				}
6529 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6530 				    "nxge_init_common_dev: read compatible"
6531 				    " property[%d] val[%s]",
6532 				    i, (caddr_t)prop_val[i]));
6533 			}
6534 		}
6535 
6536 		ddi_prop_free(prop_val);
6537 
6538 		(void) nxge_scan_ports_phy(nxgep, nxge_hw_list);
6539 	}
6540 
6541 	MUTEX_EXIT(&nxge_common_lock);
6542 
6543 	nxgep->platform_type = hw_p->platform_type;
6544 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "nxgep->platform_type %d",
6545 	    nxgep->platform_type));
6546 	if (nxgep->niu_type != N2_NIU) {
6547 		nxgep->niu_type = hw_p->niu_type;
6548 	}
6549 
6550 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6551 	    "==> nxge_init_common_device (nxge_hw_list) $%p",
6552 	    nxge_hw_list));
6553 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<== nxge_init_common_device"));
6554 
6555 	return (NXGE_OK);
6556 }
6557 
6558 static void
6559 nxge_uninit_common_dev(p_nxge_t nxgep)
6560 {
6561 	p_nxge_hw_list_t	hw_p, h_hw_p;
6562 	p_nxge_dma_pt_cfg_t	p_dma_cfgp;
6563 	p_nxge_hw_pt_cfg_t	p_cfgp;
6564 	dev_info_t 		*p_dip;
6565 
6566 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_uninit_common_device"));
6567 	if (nxgep->nxge_hw_p == NULL) {
6568 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6569 		    "<== nxge_uninit_common_device (no common)"));
6570 		return;
6571 	}
6572 
6573 	MUTEX_ENTER(&nxge_common_lock);
6574 	h_hw_p = nxge_hw_list;
6575 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6576 		p_dip = hw_p->parent_devp;
6577 		if (nxgep->nxge_hw_p == hw_p &&
6578 		    p_dip == nxgep->p_dip &&
6579 		    nxgep->nxge_hw_p->magic == NXGE_NEPTUNE_MAGIC &&
6580 		    hw_p->magic == NXGE_NEPTUNE_MAGIC) {
6581 
6582 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6583 			    "==> nxge_uninit_common_device:func # %d "
6584 			    "hw_p $%p parent dip $%p "
6585 			    "ndevs %d (found)",
6586 			    nxgep->function_num,
6587 			    hw_p,
6588 			    p_dip,
6589 			    hw_p->ndevs));
6590 
6591 			/*
6592 			 * Release the RDC table, a shared resoruce
6593 			 * of the nxge hardware.  The RDC table was
6594 			 * assigned to this instance of nxge in
6595 			 * nxge_use_cfg_dma_config().
6596 			 */
6597 			if (!isLDOMguest(nxgep)) {
6598 				p_dma_cfgp =
6599 				    (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
6600 				p_cfgp =
6601 				    (p_nxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
6602 				(void) nxge_fzc_rdc_tbl_unbind(nxgep,
6603 				    p_cfgp->def_mac_rxdma_grpid);
6604 
6605 				/* Cleanup any outstanding groups.  */
6606 				nxge_grp_cleanup(nxgep);
6607 			}
6608 
6609 			if (hw_p->ndevs) {
6610 				hw_p->ndevs--;
6611 			}
6612 			hw_p->nxge_p[nxgep->function_num] = NULL;
6613 			if (!hw_p->ndevs) {
6614 				MUTEX_DESTROY(&hw_p->nxge_vlan_lock);
6615 				MUTEX_DESTROY(&hw_p->nxge_tcam_lock);
6616 				MUTEX_DESTROY(&hw_p->nxge_cfg_lock);
6617 				MUTEX_DESTROY(&hw_p->nxge_mdio_lock);
6618 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6619 				    "==> nxge_uninit_common_device: "
6620 				    "func # %d "
6621 				    "hw_p $%p parent dip $%p "
6622 				    "ndevs %d (last)",
6623 				    nxgep->function_num,
6624 				    hw_p,
6625 				    p_dip,
6626 				    hw_p->ndevs));
6627 
6628 				nxge_hio_uninit(nxgep);
6629 
6630 				if (hw_p == nxge_hw_list) {
6631 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6632 					    "==> nxge_uninit_common_device:"
6633 					    "remove head func # %d "
6634 					    "hw_p $%p parent dip $%p "
6635 					    "ndevs %d (head)",
6636 					    nxgep->function_num,
6637 					    hw_p,
6638 					    p_dip,
6639 					    hw_p->ndevs));
6640 					nxge_hw_list = hw_p->next;
6641 				} else {
6642 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6643 					    "==> nxge_uninit_common_device:"
6644 					    "remove middle func # %d "
6645 					    "hw_p $%p parent dip $%p "
6646 					    "ndevs %d (middle)",
6647 					    nxgep->function_num,
6648 					    hw_p,
6649 					    p_dip,
6650 					    hw_p->ndevs));
6651 					h_hw_p->next = hw_p->next;
6652 				}
6653 
6654 				nxgep->nxge_hw_p = NULL;
6655 				KMEM_FREE(hw_p, sizeof (nxge_hw_list_t));
6656 			}
6657 			break;
6658 		} else {
6659 			h_hw_p = hw_p;
6660 		}
6661 	}
6662 
6663 	MUTEX_EXIT(&nxge_common_lock);
6664 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6665 	    "==> nxge_uninit_common_device (nxge_hw_list) $%p",
6666 	    nxge_hw_list));
6667 
6668 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<= nxge_uninit_common_device"));
6669 }
6670 
6671 /*
6672  * Determines the number of ports from the niu_type or the platform type.
6673  * Returns the number of ports, or returns zero on failure.
6674  */
6675 
6676 int
6677 nxge_get_nports(p_nxge_t nxgep)
6678 {
6679 	int	nports = 0;
6680 
6681 	switch (nxgep->niu_type) {
6682 	case N2_NIU:
6683 	case NEPTUNE_2_10GF:
6684 		nports = 2;
6685 		break;
6686 	case NEPTUNE_4_1GC:
6687 	case NEPTUNE_2_10GF_2_1GC:
6688 	case NEPTUNE_1_10GF_3_1GC:
6689 	case NEPTUNE_1_1GC_1_10GF_2_1GC:
6690 	case NEPTUNE_2_10GF_2_1GRF:
6691 		nports = 4;
6692 		break;
6693 	default:
6694 		switch (nxgep->platform_type) {
6695 		case P_NEPTUNE_NIU:
6696 		case P_NEPTUNE_ATLAS_2PORT:
6697 			nports = 2;
6698 			break;
6699 		case P_NEPTUNE_ATLAS_4PORT:
6700 		case P_NEPTUNE_MARAMBA_P0:
6701 		case P_NEPTUNE_MARAMBA_P1:
6702 		case P_NEPTUNE_ROCK:
6703 		case P_NEPTUNE_ALONSO:
6704 			nports = 4;
6705 			break;
6706 		default:
6707 			break;
6708 		}
6709 		break;
6710 	}
6711 
6712 	return (nports);
6713 }
6714 
6715 /*
6716  * The following two functions are to support
6717  * PSARC/2007/453 MSI-X interrupt limit override.
6718  */
6719 static int
6720 nxge_create_msi_property(p_nxge_t nxgep)
6721 {
6722 	int	nmsi;
6723 	extern	int ncpus;
6724 
6725 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==>nxge_create_msi_property"));
6726 
6727 	switch (nxgep->mac.portmode) {
6728 	case PORT_10G_COPPER:
6729 	case PORT_10G_FIBER:
6730 	case PORT_10G_TN1010:
6731 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6732 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6733 		/*
6734 		 * The maximum MSI-X requested will be 8.
6735 		 * If the # of CPUs is less than 8, we will request
6736 		 * # MSI-X based on the # of CPUs (default).
6737 		 */
6738 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6739 		    "==>nxge_create_msi_property (10G): nxge_msix_10g_intrs %d",
6740 		    nxge_msix_10g_intrs));
6741 		if ((nxge_msix_10g_intrs == 0) ||
6742 		    (nxge_msix_10g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6743 			nmsi = NXGE_MSIX_REQUEST_10G;
6744 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6745 			    "==>nxge_create_msi_property (10G): reset to 8"));
6746 		} else {
6747 			nmsi = nxge_msix_10g_intrs;
6748 		}
6749 
6750 		/*
6751 		 * If # of interrupts requested is 8 (default),
6752 		 * the checking of the number of cpus will be
6753 		 * be maintained.
6754 		 */
6755 		if ((nmsi == NXGE_MSIX_REQUEST_10G) &&
6756 		    (ncpus < nmsi)) {
6757 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6758 			    "==>nxge_create_msi_property (10G): reset to 8"));
6759 			nmsi = ncpus;
6760 		}
6761 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6762 		    "==>nxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
6763 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6764 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6765 		break;
6766 
6767 	default:
6768 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6769 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6770 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6771 		    "==>nxge_create_msi_property (1G): nxge_msix_1g_intrs %d",
6772 		    nxge_msix_1g_intrs));
6773 		if ((nxge_msix_1g_intrs == 0) ||
6774 		    (nxge_msix_1g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6775 			nmsi = NXGE_MSIX_REQUEST_1G;
6776 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6777 			    "==>nxge_create_msi_property (1G): reset to 2"));
6778 		} else {
6779 			nmsi = nxge_msix_1g_intrs;
6780 		}
6781 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6782 		    "==>nxge_create_msi_property(1G): exists 0x%x (nmsi %d)",
6783 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6784 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6785 		break;
6786 	}
6787 
6788 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<==nxge_create_msi_property"));
6789 	return (nmsi);
6790 }
6791 
6792 /* ARGSUSED */
6793 static int
6794 nxge_get_def_val(nxge_t *nxgep, mac_prop_id_t pr_num, uint_t pr_valsize,
6795     void *pr_val)
6796 {
6797 	int err = 0;
6798 	link_flowctrl_t fl;
6799 
6800 	switch (pr_num) {
6801 	case MAC_PROP_AUTONEG:
6802 		*(uint8_t *)pr_val = 1;
6803 		break;
6804 	case MAC_PROP_FLOWCTRL:
6805 		if (pr_valsize < sizeof (link_flowctrl_t))
6806 			return (EINVAL);
6807 		fl = LINK_FLOWCTRL_RX;
6808 		bcopy(&fl, pr_val, sizeof (fl));
6809 		break;
6810 	case MAC_PROP_ADV_1000FDX_CAP:
6811 	case MAC_PROP_EN_1000FDX_CAP:
6812 		*(uint8_t *)pr_val = 1;
6813 		break;
6814 	case MAC_PROP_ADV_100FDX_CAP:
6815 	case MAC_PROP_EN_100FDX_CAP:
6816 		*(uint8_t *)pr_val = 1;
6817 		break;
6818 	default:
6819 		err = ENOTSUP;
6820 		break;
6821 	}
6822 	return (err);
6823 }
6824 
6825 
6826 /*
6827  * The following is a software around for the Neptune hardware's
6828  * interrupt bugs; The Neptune hardware may generate spurious interrupts when
6829  * an interrupr handler is removed.
6830  */
6831 #define	NXGE_PCI_PORT_LOGIC_OFFSET	0x98
6832 #define	NXGE_PIM_RESET			(1ULL << 29)
6833 #define	NXGE_GLU_RESET			(1ULL << 30)
6834 #define	NXGE_NIU_RESET			(1ULL << 31)
6835 #define	NXGE_PCI_RESET_ALL		(NXGE_PIM_RESET |	\
6836 					NXGE_GLU_RESET |	\
6837 					NXGE_NIU_RESET)
6838 
6839 #define	NXGE_WAIT_QUITE_TIME		200000
6840 #define	NXGE_WAIT_QUITE_RETRY		40
6841 #define	NXGE_PCI_RESET_WAIT		1000000 /* one second */
6842 
6843 static void
6844 nxge_niu_peu_reset(p_nxge_t nxgep)
6845 {
6846 	uint32_t	rvalue;
6847 	p_nxge_hw_list_t hw_p;
6848 	p_nxge_t	fnxgep;
6849 	int		i, j;
6850 
6851 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_niu_peu_reset"));
6852 	if ((hw_p = nxgep->nxge_hw_p) == NULL) {
6853 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6854 		    "==> nxge_niu_peu_reset: NULL hardware pointer"));
6855 		return;
6856 	}
6857 
6858 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6859 	    "==> nxge_niu_peu_reset: flags 0x%x link timer id %d timer id %d",
6860 	    hw_p->flags, nxgep->nxge_link_poll_timerid,
6861 	    nxgep->nxge_timerid));
6862 
6863 	MUTEX_ENTER(&hw_p->nxge_cfg_lock);
6864 	/*
6865 	 * Make sure other instances from the same hardware
6866 	 * stop sending PIO and in quiescent state.
6867 	 */
6868 	for (i = 0; i < NXGE_MAX_PORTS; i++) {
6869 		fnxgep = hw_p->nxge_p[i];
6870 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6871 		    "==> nxge_niu_peu_reset: checking entry %d "
6872 		    "nxgep $%p", i, fnxgep));
6873 #ifdef	NXGE_DEBUG
6874 		if (fnxgep) {
6875 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6876 			    "==> nxge_niu_peu_reset: entry %d (function %d) "
6877 			    "link timer id %d hw timer id %d",
6878 			    i, fnxgep->function_num,
6879 			    fnxgep->nxge_link_poll_timerid,
6880 			    fnxgep->nxge_timerid));
6881 		}
6882 #endif
6883 		if (fnxgep && fnxgep != nxgep &&
6884 		    (fnxgep->nxge_timerid || fnxgep->nxge_link_poll_timerid)) {
6885 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6886 			    "==> nxge_niu_peu_reset: checking $%p "
6887 			    "(function %d) timer ids",
6888 			    fnxgep, fnxgep->function_num));
6889 			for (j = 0; j < NXGE_WAIT_QUITE_RETRY; j++) {
6890 				NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6891 				    "==> nxge_niu_peu_reset: waiting"));
6892 				NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6893 				if (!fnxgep->nxge_timerid &&
6894 				    !fnxgep->nxge_link_poll_timerid) {
6895 					break;
6896 				}
6897 			}
6898 			NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6899 			if (fnxgep->nxge_timerid ||
6900 			    fnxgep->nxge_link_poll_timerid) {
6901 				MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6902 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6903 				    "<== nxge_niu_peu_reset: cannot reset "
6904 				    "hardware (devices are still in use)"));
6905 				return;
6906 			}
6907 		}
6908 	}
6909 
6910 	if ((hw_p->flags & COMMON_RESET_NIU_PCI) != COMMON_RESET_NIU_PCI) {
6911 		hw_p->flags |= COMMON_RESET_NIU_PCI;
6912 		rvalue = pci_config_get32(nxgep->dev_regs->nxge_pciregh,
6913 		    NXGE_PCI_PORT_LOGIC_OFFSET);
6914 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6915 		    "nxge_niu_peu_reset: read offset 0x%x (%d) "
6916 		    "(data 0x%x)",
6917 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6918 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6919 		    rvalue));
6920 
6921 		rvalue |= NXGE_PCI_RESET_ALL;
6922 		pci_config_put32(nxgep->dev_regs->nxge_pciregh,
6923 		    NXGE_PCI_PORT_LOGIC_OFFSET, rvalue);
6924 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6925 		    "nxge_niu_peu_reset: RESETTING NIU: write NIU reset 0x%x",
6926 		    rvalue));
6927 
6928 		NXGE_DELAY(NXGE_PCI_RESET_WAIT);
6929 	}
6930 
6931 	MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6932 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_niu_peu_reset"));
6933 }
6934 
6935 static void
6936 nxge_set_pci_replay_timeout(p_nxge_t nxgep)
6937 {
6938 	p_dev_regs_t	dev_regs;
6939 	uint32_t	value;
6940 
6941 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_set_pci_replay_timeout"));
6942 
6943 	if (!nxge_set_replay_timer) {
6944 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6945 		    "==> nxge_set_pci_replay_timeout: will not change "
6946 		    "the timeout"));
6947 		return;
6948 	}
6949 
6950 	dev_regs = nxgep->dev_regs;
6951 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6952 	    "==> nxge_set_pci_replay_timeout: dev_regs 0x%p pcireg 0x%p",
6953 	    dev_regs, dev_regs->nxge_pciregh));
6954 
6955 	if (dev_regs == NULL || (dev_regs->nxge_pciregh == NULL)) {
6956 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6957 		    "==> nxge_set_pci_replay_timeout: NULL dev_regs $%p or "
6958 		    "no PCI handle",
6959 		    dev_regs));
6960 		return;
6961 	}
6962 	value = (pci_config_get32(dev_regs->nxge_pciregh,
6963 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET) |
6964 	    (nxge_replay_timeout << PCI_REPLAY_TIMEOUT_SHIFT));
6965 
6966 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6967 	    "nxge_set_pci_replay_timeout: replay timeout value before set 0x%x "
6968 	    "(timeout value to set 0x%x at offset 0x%x) value 0x%x",
6969 	    pci_config_get32(dev_regs->nxge_pciregh,
6970 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET), nxge_replay_timeout,
6971 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET, value));
6972 
6973 	pci_config_put32(dev_regs->nxge_pciregh, PCI_REPLAY_TIMEOUT_CFG_OFFSET,
6974 	    value);
6975 
6976 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6977 	    "nxge_set_pci_replay_timeout: replay timeout value after set 0x%x",
6978 	    pci_config_get32(dev_regs->nxge_pciregh,
6979 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET)));
6980 
6981 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_set_pci_replay_timeout"));
6982 }
6983 
6984 /*
6985  * quiesce(9E) entry point.
6986  *
6987  * This function is called when the system is single-threaded at high
6988  * PIL with preemption disabled. Therefore, this function must not be
6989  * blocked.
6990  *
6991  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
6992  * DDI_FAILURE indicates an error condition and should almost never happen.
6993  */
6994 static int
6995 nxge_quiesce(dev_info_t *dip)
6996 {
6997 	int instance = ddi_get_instance(dip);
6998 	p_nxge_t nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
6999 
7000 	if (nxgep == NULL)
7001 		return (DDI_FAILURE);
7002 
7003 	/* Turn off debugging */
7004 	nxge_debug_level = NO_DEBUG;
7005 	nxgep->nxge_debug_level = NO_DEBUG;
7006 	npi_debug_level = NO_DEBUG;
7007 
7008 	/*
7009 	 * Stop link monitor only when linkchkmod is interrupt based
7010 	 */
7011 	if (nxgep->mac.linkchkmode == LINKCHK_INTR) {
7012 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
7013 	}
7014 
7015 	(void) nxge_intr_hw_disable(nxgep);
7016 
7017 	/*
7018 	 * Reset the receive MAC side.
7019 	 */
7020 	(void) nxge_rx_mac_disable(nxgep);
7021 
7022 	/* Disable and soft reset the IPP */
7023 	if (!isLDOMguest(nxgep))
7024 		(void) nxge_ipp_disable(nxgep);
7025 
7026 	/*
7027 	 * Reset the transmit/receive DMA side.
7028 	 */
7029 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
7030 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
7031 
7032 	/*
7033 	 * Reset the transmit MAC side.
7034 	 */
7035 	(void) nxge_tx_mac_disable(nxgep);
7036 
7037 	return (DDI_SUCCESS);
7038 }
7039