xref: /titanic_44/usr/src/uts/common/io/nxge/nxge_main.c (revision 6bbe05905a1c10a2703f95fb4912eb14b87f6670)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*
28  * SunOs MT STREAMS NIU/Neptune 10Gb Ethernet Device Driver.
29  */
30 #include	<sys/nxge/nxge_impl.h>
31 #include	<sys/nxge/nxge_hio.h>
32 #include	<sys/nxge/nxge_rxdma.h>
33 #include	<sys/pcie.h>
34 
35 uint32_t 	nxge_use_partition = 0;		/* debug partition flag */
36 uint32_t 	nxge_dma_obp_props_only = 1;	/* use obp published props */
37 uint32_t 	nxge_use_rdc_intr = 1;		/* debug to assign rdc intr */
38 /*
39  * PSARC/2007/453 MSI-X interrupt limit override
40  */
41 uint32_t	nxge_msi_enable = 2;
42 
43 /*
44  * Software workaround for a Neptune (PCI-E)
45  * hardware interrupt bug which the hardware
46  * may generate spurious interrupts after the
47  * device interrupt handler was removed. If this flag
48  * is enabled, the driver will reset the
49  * hardware when devices are being detached.
50  */
51 uint32_t	nxge_peu_reset_enable = 0;
52 
53 /*
54  * Software workaround for the hardware
55  * checksum bugs that affect packet transmission
56  * and receive:
57  *
58  * Usage of nxge_cksum_offload:
59  *
60  *  (1) nxge_cksum_offload = 0 (default):
61  *	- transmits packets:
62  *	  TCP: uses the hardware checksum feature.
63  *	  UDP: driver will compute the software checksum
64  *	       based on the partial checksum computed
65  *	       by the IP layer.
66  *	- receives packets
67  *	  TCP: marks packets checksum flags based on hardware result.
68  *	  UDP: will not mark checksum flags.
69  *
70  *  (2) nxge_cksum_offload = 1:
71  *	- transmit packets:
72  *	  TCP/UDP: uses the hardware checksum feature.
73  *	- receives packets
74  *	  TCP/UDP: marks packet checksum flags based on hardware result.
75  *
76  *  (3) nxge_cksum_offload = 2:
77  *	- The driver will not register its checksum capability.
78  *	  Checksum for both TCP and UDP will be computed
79  *	  by the stack.
80  *	- The software LSO is not allowed in this case.
81  *
82  *  (4) nxge_cksum_offload > 2:
83  *	- Will be treated as it is set to 2
84  *	  (stack will compute the checksum).
85  *
86  *  (5) If the hardware bug is fixed, this workaround
87  *	needs to be updated accordingly to reflect
88  *	the new hardware revision.
89  */
90 uint32_t	nxge_cksum_offload = 0;
91 
92 /*
93  * Globals: tunable parameters (/etc/system or adb)
94  *
95  */
96 uint32_t 	nxge_rbr_size = NXGE_RBR_RBB_DEFAULT;
97 uint32_t 	nxge_rbr_spare_size = 0;
98 uint32_t 	nxge_rcr_size = NXGE_RCR_DEFAULT;
99 uint32_t 	nxge_tx_ring_size = NXGE_TX_RING_DEFAULT;
100 boolean_t 	nxge_no_msg = B_TRUE;		/* control message display */
101 uint32_t 	nxge_no_link_notify = 0;	/* control DL_NOTIFY */
102 uint32_t 	nxge_bcopy_thresh = TX_BCOPY_MAX;
103 uint32_t 	nxge_dvma_thresh = TX_FASTDVMA_MIN;
104 uint32_t 	nxge_dma_stream_thresh = TX_STREAM_MIN;
105 uint32_t	nxge_jumbo_mtu	= TX_JUMBO_MTU;
106 nxge_tx_mode_t	nxge_tx_scheme = NXGE_USE_SERIAL;
107 
108 /* MAX LSO size */
109 #define		NXGE_LSO_MAXLEN	65535
110 uint32_t	nxge_lso_max = NXGE_LSO_MAXLEN;
111 
112 
113 /*
114  * Add tunable to reduce the amount of time spent in the
115  * ISR doing Rx Processing.
116  */
117 uint32_t nxge_max_rx_pkts = 1024;
118 
119 /*
120  * Tunables to manage the receive buffer blocks.
121  *
122  * nxge_rx_threshold_hi: copy all buffers.
123  * nxge_rx_bcopy_size_type: receive buffer block size type.
124  * nxge_rx_threshold_lo: copy only up to tunable block size type.
125  */
126 nxge_rxbuf_threshold_t nxge_rx_threshold_hi = NXGE_RX_COPY_6;
127 nxge_rxbuf_type_t nxge_rx_buf_size_type = RCR_PKTBUFSZ_0;
128 nxge_rxbuf_threshold_t nxge_rx_threshold_lo = NXGE_RX_COPY_3;
129 
130 /* Use kmem_alloc() to allocate data buffers. */
131 #if defined(__sparc)
132 uint32_t	nxge_use_kmem_alloc = 1;
133 #elif defined(__i386)
134 uint32_t	nxge_use_kmem_alloc = 0;
135 #else
136 uint32_t	nxge_use_kmem_alloc = 1;
137 #endif
138 
139 rtrace_t npi_rtracebuf;
140 
141 /*
142  * The hardware sometimes fails to allow enough time for the link partner
143  * to send an acknowledgement for packets that the hardware sent to it. The
144  * hardware resends the packets earlier than it should be in those instances.
145  * This behavior caused some switches to acknowledge the wrong packets
146  * and it triggered the fatal error.
147  * This software workaround is to set the replay timer to a value
148  * suggested by the hardware team.
149  *
150  * PCI config space replay timer register:
151  *     The following replay timeout value is 0xc
152  *     for bit 14:18.
153  */
154 #define	PCI_REPLAY_TIMEOUT_CFG_OFFSET	0xb8
155 #define	PCI_REPLAY_TIMEOUT_SHIFT	14
156 
157 uint32_t	nxge_set_replay_timer = 1;
158 uint32_t	nxge_replay_timeout = 0xc;
159 
160 /*
161  * The transmit serialization sometimes causes
162  * longer sleep before calling the driver transmit
163  * function as it sleeps longer than it should.
164  * The performace group suggests that a time wait tunable
165  * can be used to set the maximum wait time when needed
166  * and the default is set to 1 tick.
167  */
168 uint32_t	nxge_tx_serial_maxsleep = 1;
169 
170 #if	defined(sun4v)
171 /*
172  * Hypervisor N2/NIU services information.
173  */
174 static hsvc_info_t niu_hsvc = {
175 	HSVC_REV_1, NULL, HSVC_GROUP_NIU, NIU_MAJOR_VER,
176 	NIU_MINOR_VER, "nxge"
177 };
178 
179 static int nxge_hsvc_register(p_nxge_t);
180 #endif
181 
182 /*
183  * Function Prototypes
184  */
185 static int nxge_attach(dev_info_t *, ddi_attach_cmd_t);
186 static int nxge_detach(dev_info_t *, ddi_detach_cmd_t);
187 static void nxge_unattach(p_nxge_t);
188 static int nxge_quiesce(dev_info_t *);
189 
190 #if NXGE_PROPERTY
191 static void nxge_remove_hard_properties(p_nxge_t);
192 #endif
193 
194 /*
195  * These two functions are required by nxge_hio.c
196  */
197 extern int nxge_m_mmac_remove(void *arg, int slot);
198 extern void nxge_grp_cleanup(p_nxge_t nxge);
199 
200 static nxge_status_t nxge_setup_system_dma_pages(p_nxge_t);
201 
202 static nxge_status_t nxge_setup_mutexes(p_nxge_t);
203 static void nxge_destroy_mutexes(p_nxge_t);
204 
205 static nxge_status_t nxge_map_regs(p_nxge_t nxgep);
206 static void nxge_unmap_regs(p_nxge_t nxgep);
207 #ifdef	NXGE_DEBUG
208 static void nxge_test_map_regs(p_nxge_t nxgep);
209 #endif
210 
211 static nxge_status_t nxge_add_intrs(p_nxge_t nxgep);
212 static void nxge_remove_intrs(p_nxge_t nxgep);
213 
214 static nxge_status_t nxge_add_intrs_adv(p_nxge_t nxgep);
215 static nxge_status_t nxge_add_intrs_adv_type(p_nxge_t, uint32_t);
216 static nxge_status_t nxge_add_intrs_adv_type_fix(p_nxge_t, uint32_t);
217 static void nxge_intrs_enable(p_nxge_t nxgep);
218 static void nxge_intrs_disable(p_nxge_t nxgep);
219 
220 static void nxge_suspend(p_nxge_t);
221 static nxge_status_t nxge_resume(p_nxge_t);
222 
223 static nxge_status_t nxge_setup_dev(p_nxge_t);
224 static void nxge_destroy_dev(p_nxge_t);
225 
226 static nxge_status_t nxge_alloc_mem_pool(p_nxge_t);
227 static void nxge_free_mem_pool(p_nxge_t);
228 
229 nxge_status_t nxge_alloc_rx_mem_pool(p_nxge_t);
230 static void nxge_free_rx_mem_pool(p_nxge_t);
231 
232 nxge_status_t nxge_alloc_tx_mem_pool(p_nxge_t);
233 static void nxge_free_tx_mem_pool(p_nxge_t);
234 
235 static nxge_status_t nxge_dma_mem_alloc(p_nxge_t, dma_method_t,
236 	struct ddi_dma_attr *,
237 	size_t, ddi_device_acc_attr_t *, uint_t,
238 	p_nxge_dma_common_t);
239 
240 static void nxge_dma_mem_free(p_nxge_dma_common_t);
241 static void nxge_dma_free_rx_data_buf(p_nxge_dma_common_t);
242 
243 static nxge_status_t nxge_alloc_rx_buf_dma(p_nxge_t, uint16_t,
244 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
245 static void nxge_free_rx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
246 
247 static nxge_status_t nxge_alloc_rx_cntl_dma(p_nxge_t, uint16_t,
248 	p_nxge_dma_common_t *, size_t);
249 static void nxge_free_rx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
250 
251 extern nxge_status_t nxge_alloc_tx_buf_dma(p_nxge_t, uint16_t,
252 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
253 static void nxge_free_tx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
254 
255 extern nxge_status_t nxge_alloc_tx_cntl_dma(p_nxge_t, uint16_t,
256 	p_nxge_dma_common_t *,
257 	size_t);
258 static void nxge_free_tx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
259 
260 static int nxge_init_common_dev(p_nxge_t);
261 static void nxge_uninit_common_dev(p_nxge_t);
262 extern int nxge_param_set_mac(p_nxge_t, queue_t *, mblk_t *,
263     char *, caddr_t);
264 #if defined(sun4v)
265 extern nxge_status_t nxge_hio_rdc_enable(p_nxge_t nxgep);
266 extern nxge_status_t nxge_hio_rdc_intr_arm(p_nxge_t nxge, boolean_t arm);
267 #endif
268 
269 /*
270  * The next declarations are for the GLDv3 interface.
271  */
272 static int nxge_m_start(void *);
273 static void nxge_m_stop(void *);
274 static int nxge_m_multicst(void *, boolean_t, const uint8_t *);
275 static int nxge_m_promisc(void *, boolean_t);
276 static void nxge_m_ioctl(void *, queue_t *, mblk_t *);
277 nxge_status_t nxge_mac_register(p_nxge_t);
278 static int nxge_altmac_set(p_nxge_t nxgep, uint8_t *mac_addr,
279 	int slot, int rdctbl, boolean_t usetbl);
280 void nxge_mmac_kstat_update(p_nxge_t nxgep, int slot,
281 	boolean_t factory);
282 
283 static void nxge_m_getfactaddr(void *, uint_t, uint8_t *);
284 static	boolean_t nxge_m_getcapab(void *, mac_capab_t, void *);
285 static int nxge_m_setprop(void *, const char *, mac_prop_id_t,
286     uint_t, const void *);
287 static int nxge_m_getprop(void *, const char *, mac_prop_id_t,
288     uint_t, uint_t, void *, uint_t *);
289 static int nxge_set_priv_prop(nxge_t *, const char *, uint_t,
290     const void *);
291 static int nxge_get_priv_prop(nxge_t *, const char *, uint_t, uint_t,
292     void *, uint_t *);
293 static int nxge_get_def_val(nxge_t *, mac_prop_id_t, uint_t, void *);
294 static void nxge_fill_ring(void *, mac_ring_type_t, const int, const int,
295     mac_ring_info_t *, mac_ring_handle_t);
296 static void nxge_group_add_ring(mac_group_driver_t, mac_ring_driver_t,
297     mac_ring_type_t);
298 static void nxge_group_rem_ring(mac_group_driver_t, mac_ring_driver_t,
299     mac_ring_type_t);
300 
301 static void nxge_niu_peu_reset(p_nxge_t nxgep);
302 static void nxge_set_pci_replay_timeout(nxge_t *);
303 
304 mac_priv_prop_t nxge_priv_props[] = {
305 	{"_adv_10gfdx_cap", MAC_PROP_PERM_RW},
306 	{"_adv_pause_cap", MAC_PROP_PERM_RW},
307 	{"_function_number", MAC_PROP_PERM_READ},
308 	{"_fw_version", MAC_PROP_PERM_READ},
309 	{"_port_mode", MAC_PROP_PERM_READ},
310 	{"_hot_swap_phy", MAC_PROP_PERM_READ},
311 	{"_rxdma_intr_time", MAC_PROP_PERM_RW},
312 	{"_rxdma_intr_pkts", MAC_PROP_PERM_RW},
313 	{"_class_opt_ipv4_tcp", MAC_PROP_PERM_RW},
314 	{"_class_opt_ipv4_udp", MAC_PROP_PERM_RW},
315 	{"_class_opt_ipv4_ah", MAC_PROP_PERM_RW},
316 	{"_class_opt_ipv4_sctp", MAC_PROP_PERM_RW},
317 	{"_class_opt_ipv6_tcp", MAC_PROP_PERM_RW},
318 	{"_class_opt_ipv6_udp", MAC_PROP_PERM_RW},
319 	{"_class_opt_ipv6_ah", MAC_PROP_PERM_RW},
320 	{"_class_opt_ipv6_sctp", MAC_PROP_PERM_RW},
321 	{"_soft_lso_enable", MAC_PROP_PERM_RW}
322 };
323 
324 #define	NXGE_MAX_PRIV_PROPS	\
325 	(sizeof (nxge_priv_props)/sizeof (mac_priv_prop_t))
326 
327 #define	NXGE_NEPTUNE_MAGIC	0x4E584745UL
328 #define	MAX_DUMP_SZ 256
329 
330 #define	NXGE_M_CALLBACK_FLAGS	\
331 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP)
332 
333 mac_callbacks_t nxge_m_callbacks = {
334 	NXGE_M_CALLBACK_FLAGS,
335 	nxge_m_stat,
336 	nxge_m_start,
337 	nxge_m_stop,
338 	nxge_m_promisc,
339 	nxge_m_multicst,
340 	NULL,
341 	NULL,
342 	nxge_m_ioctl,
343 	nxge_m_getcapab,
344 	NULL,
345 	NULL,
346 	nxge_m_setprop,
347 	nxge_m_getprop
348 };
349 
350 void
351 nxge_err_inject(p_nxge_t, queue_t *, mblk_t *);
352 
353 /* PSARC/2007/453 MSI-X interrupt limit override. */
354 #define	NXGE_MSIX_REQUEST_10G	8
355 #define	NXGE_MSIX_REQUEST_1G	2
356 static int nxge_create_msi_property(p_nxge_t);
357 /*
358  * For applications that care about the
359  * latency, it was requested by PAE and the
360  * customers that the driver has tunables that
361  * allow the user to tune it to a higher number
362  * interrupts to spread the interrupts among
363  * multiple channels. The DDI framework limits
364  * the maximum number of MSI-X resources to allocate
365  * to 8 (ddi_msix_alloc_limit). If more than 8
366  * is set, ddi_msix_alloc_limit must be set accordingly.
367  * The default number of MSI interrupts are set to
368  * 8 for 10G and 2 for 1G link.
369  */
370 #define	NXGE_MSIX_MAX_ALLOWED	32
371 uint32_t nxge_msix_10g_intrs = NXGE_MSIX_REQUEST_10G;
372 uint32_t nxge_msix_1g_intrs = NXGE_MSIX_REQUEST_1G;
373 
374 /*
375  * These global variables control the message
376  * output.
377  */
378 out_dbgmsg_t nxge_dbgmsg_out = DBG_CONSOLE | STR_LOG;
379 uint64_t nxge_debug_level;
380 
381 /*
382  * This list contains the instance structures for the Neptune
383  * devices present in the system. The lock exists to guarantee
384  * mutually exclusive access to the list.
385  */
386 void 			*nxge_list = NULL;
387 void			*nxge_hw_list = NULL;
388 nxge_os_mutex_t 	nxge_common_lock;
389 nxge_os_mutex_t 	nxgedebuglock;
390 
391 extern uint64_t 	npi_debug_level;
392 
393 extern nxge_status_t	nxge_ldgv_init(p_nxge_t, int *, int *);
394 extern nxge_status_t	nxge_ldgv_init_n2(p_nxge_t, int *, int *);
395 extern nxge_status_t	nxge_ldgv_uninit(p_nxge_t);
396 extern nxge_status_t	nxge_intr_ldgv_init(p_nxge_t);
397 extern void		nxge_fm_init(p_nxge_t,
398 					ddi_device_acc_attr_t *,
399 					ddi_device_acc_attr_t *,
400 					ddi_dma_attr_t *);
401 extern void		nxge_fm_fini(p_nxge_t);
402 extern npi_status_t	npi_mac_altaddr_disable(npi_handle_t, uint8_t, uint8_t);
403 
404 /*
405  * Count used to maintain the number of buffers being used
406  * by Neptune instances and loaned up to the upper layers.
407  */
408 uint32_t nxge_mblks_pending = 0;
409 
410 /*
411  * Device register access attributes for PIO.
412  */
413 static ddi_device_acc_attr_t nxge_dev_reg_acc_attr = {
414 	DDI_DEVICE_ATTR_V0,
415 	DDI_STRUCTURE_LE_ACC,
416 	DDI_STRICTORDER_ACC,
417 };
418 
419 /*
420  * Device descriptor access attributes for DMA.
421  */
422 static ddi_device_acc_attr_t nxge_dev_desc_dma_acc_attr = {
423 	DDI_DEVICE_ATTR_V0,
424 	DDI_STRUCTURE_LE_ACC,
425 	DDI_STRICTORDER_ACC
426 };
427 
428 /*
429  * Device buffer access attributes for DMA.
430  */
431 static ddi_device_acc_attr_t nxge_dev_buf_dma_acc_attr = {
432 	DDI_DEVICE_ATTR_V0,
433 	DDI_STRUCTURE_BE_ACC,
434 	DDI_STRICTORDER_ACC
435 };
436 
437 ddi_dma_attr_t nxge_desc_dma_attr = {
438 	DMA_ATTR_V0,		/* version number. */
439 	0,			/* low address */
440 	0xffffffffffffffff,	/* high address */
441 	0xffffffffffffffff,	/* address counter max */
442 #ifndef NIU_PA_WORKAROUND
443 	0x100000,		/* alignment */
444 #else
445 	0x2000,
446 #endif
447 	0xfc00fc,		/* dlim_burstsizes */
448 	0x1,			/* minimum transfer size */
449 	0xffffffffffffffff,	/* maximum transfer size */
450 	0xffffffffffffffff,	/* maximum segment size */
451 	1,			/* scatter/gather list length */
452 	(unsigned int) 1,	/* granularity */
453 	0			/* attribute flags */
454 };
455 
456 ddi_dma_attr_t nxge_tx_dma_attr = {
457 	DMA_ATTR_V0,		/* version number. */
458 	0,			/* low address */
459 	0xffffffffffffffff,	/* high address */
460 	0xffffffffffffffff,	/* address counter max */
461 #if defined(_BIG_ENDIAN)
462 	0x2000,			/* alignment */
463 #else
464 	0x1000,			/* alignment */
465 #endif
466 	0xfc00fc,		/* dlim_burstsizes */
467 	0x1,			/* minimum transfer size */
468 	0xffffffffffffffff,	/* maximum transfer size */
469 	0xffffffffffffffff,	/* maximum segment size */
470 	5,			/* scatter/gather list length */
471 	(unsigned int) 1,	/* granularity */
472 	0			/* attribute flags */
473 };
474 
475 ddi_dma_attr_t nxge_rx_dma_attr = {
476 	DMA_ATTR_V0,		/* version number. */
477 	0,			/* low address */
478 	0xffffffffffffffff,	/* high address */
479 	0xffffffffffffffff,	/* address counter max */
480 	0x2000,			/* alignment */
481 	0xfc00fc,		/* dlim_burstsizes */
482 	0x1,			/* minimum transfer size */
483 	0xffffffffffffffff,	/* maximum transfer size */
484 	0xffffffffffffffff,	/* maximum segment size */
485 	1,			/* scatter/gather list length */
486 	(unsigned int) 1,	/* granularity */
487 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
488 };
489 
490 ddi_dma_lim_t nxge_dma_limits = {
491 	(uint_t)0,		/* dlim_addr_lo */
492 	(uint_t)0xffffffff,	/* dlim_addr_hi */
493 	(uint_t)0xffffffff,	/* dlim_cntr_max */
494 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
495 	0x1,			/* dlim_minxfer */
496 	1024			/* dlim_speed */
497 };
498 
499 dma_method_t nxge_force_dma = DVMA;
500 
501 /*
502  * dma chunk sizes.
503  *
504  * Try to allocate the largest possible size
505  * so that fewer number of dma chunks would be managed
506  */
507 #ifdef NIU_PA_WORKAROUND
508 size_t alloc_sizes [] = {0x2000};
509 #else
510 size_t alloc_sizes [] = {0x1000, 0x2000, 0x4000, 0x8000,
511 		0x10000, 0x20000, 0x40000, 0x80000,
512 		0x100000, 0x200000, 0x400000, 0x800000,
513 		0x1000000, 0x2000000, 0x4000000};
514 #endif
515 
516 /*
517  * Translate "dev_t" to a pointer to the associated "dev_info_t".
518  */
519 
520 extern void nxge_get_environs(nxge_t *);
521 
522 static int
523 nxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
524 {
525 	p_nxge_t	nxgep = NULL;
526 	int		instance;
527 	int		status = DDI_SUCCESS;
528 	uint8_t		portn;
529 	nxge_mmac_t	*mmac_info;
530 
531 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_attach"));
532 
533 	/*
534 	 * Get the device instance since we'll need to setup
535 	 * or retrieve a soft state for this instance.
536 	 */
537 	instance = ddi_get_instance(dip);
538 
539 	switch (cmd) {
540 	case DDI_ATTACH:
541 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_ATTACH"));
542 		break;
543 
544 	case DDI_RESUME:
545 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_RESUME"));
546 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
547 		if (nxgep == NULL) {
548 			status = DDI_FAILURE;
549 			break;
550 		}
551 		if (nxgep->dip != dip) {
552 			status = DDI_FAILURE;
553 			break;
554 		}
555 		if (nxgep->suspended == DDI_PM_SUSPEND) {
556 			status = ddi_dev_is_needed(nxgep->dip, 0, 1);
557 		} else {
558 			status = nxge_resume(nxgep);
559 		}
560 		goto nxge_attach_exit;
561 
562 	case DDI_PM_RESUME:
563 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_RESUME"));
564 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
565 		if (nxgep == NULL) {
566 			status = DDI_FAILURE;
567 			break;
568 		}
569 		if (nxgep->dip != dip) {
570 			status = DDI_FAILURE;
571 			break;
572 		}
573 		status = nxge_resume(nxgep);
574 		goto nxge_attach_exit;
575 
576 	default:
577 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing unknown"));
578 		status = DDI_FAILURE;
579 		goto nxge_attach_exit;
580 	}
581 
582 
583 	if (ddi_soft_state_zalloc(nxge_list, instance) == DDI_FAILURE) {
584 		status = DDI_FAILURE;
585 		goto nxge_attach_exit;
586 	}
587 
588 	nxgep = ddi_get_soft_state(nxge_list, instance);
589 	if (nxgep == NULL) {
590 		status = NXGE_ERROR;
591 		goto nxge_attach_fail2;
592 	}
593 
594 	nxgep->nxge_magic = NXGE_MAGIC;
595 
596 	nxgep->drv_state = 0;
597 	nxgep->dip = dip;
598 	nxgep->instance = instance;
599 	nxgep->p_dip = ddi_get_parent(dip);
600 	nxgep->nxge_debug_level = nxge_debug_level;
601 	npi_debug_level = nxge_debug_level;
602 
603 	/* Are we a guest running in a Hybrid I/O environment? */
604 	nxge_get_environs(nxgep);
605 
606 	status = nxge_map_regs(nxgep);
607 
608 	if (status != NXGE_OK) {
609 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_map_regs failed"));
610 		goto nxge_attach_fail3;
611 	}
612 
613 	nxge_fm_init(nxgep, &nxge_dev_reg_acc_attr,
614 	    &nxge_dev_desc_dma_acc_attr,
615 	    &nxge_rx_dma_attr);
616 
617 	/* Create & initialize the per-Neptune data structure */
618 	/* (even if we're a guest). */
619 	status = nxge_init_common_dev(nxgep);
620 	if (status != NXGE_OK) {
621 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
622 		    "nxge_init_common_dev failed"));
623 		goto nxge_attach_fail4;
624 	}
625 
626 	/*
627 	 * Software workaround: set the replay timer.
628 	 */
629 	if (nxgep->niu_type != N2_NIU) {
630 		nxge_set_pci_replay_timeout(nxgep);
631 	}
632 
633 #if defined(sun4v)
634 	/* This is required by nxge_hio_init(), which follows. */
635 	if ((status = nxge_hsvc_register(nxgep)) != DDI_SUCCESS)
636 		goto nxge_attach_fail4;
637 #endif
638 
639 	if ((status = nxge_hio_init(nxgep)) != NXGE_OK) {
640 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
641 		    "nxge_hio_init failed"));
642 		goto nxge_attach_fail4;
643 	}
644 
645 	if (nxgep->niu_type == NEPTUNE_2_10GF) {
646 		if (nxgep->function_num > 1) {
647 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Unsupported"
648 			    " function %d. Only functions 0 and 1 are "
649 			    "supported for this card.", nxgep->function_num));
650 			status = NXGE_ERROR;
651 			goto nxge_attach_fail4;
652 		}
653 	}
654 
655 	if (isLDOMguest(nxgep)) {
656 		/*
657 		 * Use the function number here.
658 		 */
659 		nxgep->mac.portnum = nxgep->function_num;
660 		nxgep->mac.porttype = PORT_TYPE_LOGICAL;
661 
662 		/* XXX We'll set the MAC address counts to 1 for now. */
663 		mmac_info = &nxgep->nxge_mmac_info;
664 		mmac_info->num_mmac = 1;
665 		mmac_info->naddrfree = 1;
666 	} else {
667 		portn = NXGE_GET_PORT_NUM(nxgep->function_num);
668 		nxgep->mac.portnum = portn;
669 		if ((portn == 0) || (portn == 1))
670 			nxgep->mac.porttype = PORT_TYPE_XMAC;
671 		else
672 			nxgep->mac.porttype = PORT_TYPE_BMAC;
673 		/*
674 		 * Neptune has 4 ports, the first 2 ports use XMAC (10G MAC)
675 		 * internally, the rest 2 ports use BMAC (1G "Big" MAC).
676 		 * The two types of MACs have different characterizations.
677 		 */
678 		mmac_info = &nxgep->nxge_mmac_info;
679 		if (nxgep->function_num < 2) {
680 			mmac_info->num_mmac = XMAC_MAX_ALT_ADDR_ENTRY;
681 			mmac_info->naddrfree = XMAC_MAX_ALT_ADDR_ENTRY;
682 		} else {
683 			mmac_info->num_mmac = BMAC_MAX_ALT_ADDR_ENTRY;
684 			mmac_info->naddrfree = BMAC_MAX_ALT_ADDR_ENTRY;
685 		}
686 	}
687 	/*
688 	 * Setup the Ndd parameters for the this instance.
689 	 */
690 	nxge_init_param(nxgep);
691 
692 	/*
693 	 * Setup Register Tracing Buffer.
694 	 */
695 	npi_rtrace_buf_init((rtrace_t *)&npi_rtracebuf);
696 
697 	/* init stats ptr */
698 	nxge_init_statsp(nxgep);
699 
700 	/*
701 	 * Copy the vpd info from eeprom to a local data
702 	 * structure, and then check its validity.
703 	 */
704 	if (!isLDOMguest(nxgep)) {
705 		int *regp;
706 		uint_t reglen;
707 		int rv;
708 
709 		nxge_vpd_info_get(nxgep);
710 
711 		/* Find the NIU config handle. */
712 		rv = ddi_prop_lookup_int_array(DDI_DEV_T_ANY,
713 		    ddi_get_parent(nxgep->dip), DDI_PROP_DONTPASS,
714 		    "reg", &regp, &reglen);
715 
716 		if (rv != DDI_PROP_SUCCESS) {
717 			goto nxge_attach_fail5;
718 		}
719 		/*
720 		 * The address_hi, that is the first int, in the reg
721 		 * property consists of config handle, but need to remove
722 		 * the bits 28-31 which are OBP specific info.
723 		 */
724 		nxgep->niu_cfg_hdl = (*regp) & 0xFFFFFFF;
725 		ddi_prop_free(regp);
726 	}
727 
728 	/*
729 	 * Set the defaults for the MTU size.
730 	 */
731 	nxge_hw_id_init(nxgep);
732 
733 	if (isLDOMguest(nxgep)) {
734 		uchar_t *prop_val;
735 		uint_t prop_len;
736 		uint32_t max_frame_size;
737 
738 		extern void nxge_get_logical_props(p_nxge_t);
739 
740 		nxgep->statsp->mac_stats.xcvr_inuse = LOGICAL_XCVR;
741 		nxgep->mac.portmode = PORT_LOGICAL;
742 		(void) ddi_prop_update_string(DDI_DEV_T_NONE, nxgep->dip,
743 		    "phy-type", "virtual transceiver");
744 
745 		nxgep->nports = 1;
746 		nxgep->board_ver = 0;	/* XXX What? */
747 
748 		/*
749 		 * local-mac-address property gives us info on which
750 		 * specific MAC address the Hybrid resource is associated
751 		 * with.
752 		 */
753 		if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, nxgep->dip, 0,
754 		    "local-mac-address", &prop_val,
755 		    &prop_len) != DDI_PROP_SUCCESS) {
756 			goto nxge_attach_fail5;
757 		}
758 		if (prop_len !=  ETHERADDRL) {
759 			ddi_prop_free(prop_val);
760 			goto nxge_attach_fail5;
761 		}
762 		ether_copy(prop_val, nxgep->hio_mac_addr);
763 		ddi_prop_free(prop_val);
764 		nxge_get_logical_props(nxgep);
765 
766 		/*
767 		 * Enable Jumbo property based on the "max-frame-size"
768 		 * property value.
769 		 */
770 		max_frame_size = ddi_prop_get_int(DDI_DEV_T_ANY,
771 		    nxgep->dip, DDI_PROP_DONTPASS | DDI_PROP_NOTPROM,
772 		    "max-frame-size", NXGE_MTU_DEFAULT_MAX);
773 		if ((max_frame_size > NXGE_MTU_DEFAULT_MAX) &&
774 		    (max_frame_size <= TX_JUMBO_MTU)) {
775 			nxgep->mac.is_jumbo = B_TRUE;
776 			nxgep->mac.maxframesize = (uint16_t)max_frame_size;
777 			nxgep->mac.default_mtu = nxgep->mac.maxframesize -
778 			    NXGE_EHEADER_VLAN_CRC;
779 		}
780 	} else {
781 		status = nxge_xcvr_find(nxgep);
782 
783 		if (status != NXGE_OK) {
784 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_attach: "
785 			    " Couldn't determine card type"
786 			    " .... exit "));
787 			goto nxge_attach_fail5;
788 		}
789 
790 		status = nxge_get_config_properties(nxgep);
791 
792 		if (status != NXGE_OK) {
793 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
794 			    "get_hw create failed"));
795 			goto nxge_attach_fail;
796 		}
797 	}
798 
799 	/*
800 	 * Setup the Kstats for the driver.
801 	 */
802 	nxge_setup_kstats(nxgep);
803 
804 	if (!isLDOMguest(nxgep))
805 		nxge_setup_param(nxgep);
806 
807 	status = nxge_setup_system_dma_pages(nxgep);
808 	if (status != NXGE_OK) {
809 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "set dma page failed"));
810 		goto nxge_attach_fail;
811 	}
812 
813 
814 	if (!isLDOMguest(nxgep))
815 		nxge_hw_init_niu_common(nxgep);
816 
817 	status = nxge_setup_mutexes(nxgep);
818 	if (status != NXGE_OK) {
819 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set mutex failed"));
820 		goto nxge_attach_fail;
821 	}
822 
823 #if defined(sun4v)
824 	if (isLDOMguest(nxgep)) {
825 		/* Find our VR & channel sets. */
826 		status = nxge_hio_vr_add(nxgep);
827 		if (status != DDI_SUCCESS) {
828 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
829 			    "nxge_hio_vr_add failed"));
830 			(void) hsvc_unregister(&nxgep->niu_hsvc);
831 			nxgep->niu_hsvc_available = B_FALSE;
832 			goto nxge_attach_fail;
833 		}
834 		goto nxge_attach_exit;
835 	}
836 #endif
837 
838 	status = nxge_setup_dev(nxgep);
839 	if (status != DDI_SUCCESS) {
840 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set dev failed"));
841 		goto nxge_attach_fail;
842 	}
843 
844 	status = nxge_add_intrs(nxgep);
845 	if (status != DDI_SUCCESS) {
846 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "add_intr failed"));
847 		goto nxge_attach_fail;
848 	}
849 
850 	/* If a guest, register with vio_net instead. */
851 	if ((status = nxge_mac_register(nxgep)) != NXGE_OK) {
852 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
853 		    "unable to register to mac layer (%d)", status));
854 		goto nxge_attach_fail;
855 	}
856 
857 	mac_link_update(nxgep->mach, LINK_STATE_UNKNOWN);
858 
859 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
860 	    "registered to mac (instance %d)", instance));
861 
862 	/* nxge_link_monitor calls xcvr.check_link recursively */
863 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
864 
865 	goto nxge_attach_exit;
866 
867 nxge_attach_fail:
868 	nxge_unattach(nxgep);
869 	goto nxge_attach_fail1;
870 
871 nxge_attach_fail5:
872 	/*
873 	 * Tear down the ndd parameters setup.
874 	 */
875 	nxge_destroy_param(nxgep);
876 
877 	/*
878 	 * Tear down the kstat setup.
879 	 */
880 	nxge_destroy_kstats(nxgep);
881 
882 nxge_attach_fail4:
883 	if (nxgep->nxge_hw_p) {
884 		nxge_uninit_common_dev(nxgep);
885 		nxgep->nxge_hw_p = NULL;
886 	}
887 
888 nxge_attach_fail3:
889 	/*
890 	 * Unmap the register setup.
891 	 */
892 	nxge_unmap_regs(nxgep);
893 
894 	nxge_fm_fini(nxgep);
895 
896 nxge_attach_fail2:
897 	ddi_soft_state_free(nxge_list, nxgep->instance);
898 
899 nxge_attach_fail1:
900 	if (status != NXGE_OK)
901 		status = (NXGE_ERROR | NXGE_DDI_FAILED);
902 	nxgep = NULL;
903 
904 nxge_attach_exit:
905 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_attach status = 0x%08x",
906 	    status));
907 
908 	return (status);
909 }
910 
911 static int
912 nxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
913 {
914 	int 		status = DDI_SUCCESS;
915 	int 		instance;
916 	p_nxge_t 	nxgep = NULL;
917 
918 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_detach"));
919 	instance = ddi_get_instance(dip);
920 	nxgep = ddi_get_soft_state(nxge_list, instance);
921 	if (nxgep == NULL) {
922 		status = DDI_FAILURE;
923 		goto nxge_detach_exit;
924 	}
925 
926 	switch (cmd) {
927 	case DDI_DETACH:
928 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_DETACH"));
929 		break;
930 
931 	case DDI_PM_SUSPEND:
932 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
933 		nxgep->suspended = DDI_PM_SUSPEND;
934 		nxge_suspend(nxgep);
935 		break;
936 
937 	case DDI_SUSPEND:
938 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_SUSPEND"));
939 		if (nxgep->suspended != DDI_PM_SUSPEND) {
940 			nxgep->suspended = DDI_SUSPEND;
941 			nxge_suspend(nxgep);
942 		}
943 		break;
944 
945 	default:
946 		status = DDI_FAILURE;
947 	}
948 
949 	if (cmd != DDI_DETACH)
950 		goto nxge_detach_exit;
951 
952 	/*
953 	 * Stop the xcvr polling.
954 	 */
955 	nxgep->suspended = cmd;
956 
957 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
958 
959 	if (nxgep->mach && (status = mac_unregister(nxgep->mach)) != 0) {
960 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
961 		    "<== nxge_detach status = 0x%08X", status));
962 		return (DDI_FAILURE);
963 	}
964 
965 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
966 	    "<== nxge_detach (mac_unregister) status = 0x%08X", status));
967 
968 	nxge_unattach(nxgep);
969 	nxgep = NULL;
970 
971 nxge_detach_exit:
972 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_detach status = 0x%08X",
973 	    status));
974 
975 	return (status);
976 }
977 
978 static void
979 nxge_unattach(p_nxge_t nxgep)
980 {
981 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unattach"));
982 
983 	if (nxgep == NULL || nxgep->dev_regs == NULL) {
984 		return;
985 	}
986 
987 	nxgep->nxge_magic = 0;
988 
989 	if (nxgep->nxge_timerid) {
990 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
991 		nxgep->nxge_timerid = 0;
992 	}
993 
994 	/*
995 	 * If this flag is set, it will affect the Neptune
996 	 * only.
997 	 */
998 	if ((nxgep->niu_type != N2_NIU) && nxge_peu_reset_enable) {
999 		nxge_niu_peu_reset(nxgep);
1000 	}
1001 
1002 #if	defined(sun4v)
1003 	if (isLDOMguest(nxgep)) {
1004 		(void) nxge_hio_vr_release(nxgep);
1005 	}
1006 #endif
1007 
1008 	if (nxgep->nxge_hw_p) {
1009 		nxge_uninit_common_dev(nxgep);
1010 		nxgep->nxge_hw_p = NULL;
1011 	}
1012 
1013 #if	defined(sun4v)
1014 	if (nxgep->niu_type == N2_NIU && nxgep->niu_hsvc_available == B_TRUE) {
1015 		(void) hsvc_unregister(&nxgep->niu_hsvc);
1016 		nxgep->niu_hsvc_available = B_FALSE;
1017 	}
1018 #endif
1019 	/*
1020 	 * Stop any further interrupts.
1021 	 */
1022 	nxge_remove_intrs(nxgep);
1023 
1024 	/*
1025 	 * Stop the device and free resources.
1026 	 */
1027 	if (!isLDOMguest(nxgep)) {
1028 		nxge_destroy_dev(nxgep);
1029 	}
1030 
1031 	/*
1032 	 * Tear down the ndd parameters setup.
1033 	 */
1034 	nxge_destroy_param(nxgep);
1035 
1036 	/*
1037 	 * Tear down the kstat setup.
1038 	 */
1039 	nxge_destroy_kstats(nxgep);
1040 
1041 	/*
1042 	 * Destroy all mutexes.
1043 	 */
1044 	nxge_destroy_mutexes(nxgep);
1045 
1046 	/*
1047 	 * Remove the list of ndd parameters which
1048 	 * were setup during attach.
1049 	 */
1050 	if (nxgep->dip) {
1051 		NXGE_DEBUG_MSG((nxgep, OBP_CTL,
1052 		    " nxge_unattach: remove all properties"));
1053 
1054 		(void) ddi_prop_remove_all(nxgep->dip);
1055 	}
1056 
1057 #if NXGE_PROPERTY
1058 	nxge_remove_hard_properties(nxgep);
1059 #endif
1060 
1061 	/*
1062 	 * Unmap the register setup.
1063 	 */
1064 	nxge_unmap_regs(nxgep);
1065 
1066 	nxge_fm_fini(nxgep);
1067 
1068 	ddi_soft_state_free(nxge_list, nxgep->instance);
1069 
1070 	NXGE_DEBUG_MSG((NULL, DDI_CTL, "<== nxge_unattach"));
1071 }
1072 
1073 #if defined(sun4v)
1074 int
1075 nxge_hsvc_register(nxge_t *nxgep)
1076 {
1077 	nxge_status_t status;
1078 
1079 	if (nxgep->niu_type == N2_NIU) {
1080 		nxgep->niu_hsvc_available = B_FALSE;
1081 		bcopy(&niu_hsvc, &nxgep->niu_hsvc, sizeof (hsvc_info_t));
1082 		if ((status = hsvc_register(&nxgep->niu_hsvc,
1083 		    &nxgep->niu_min_ver)) != 0) {
1084 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1085 			    "nxge_attach: %s: cannot negotiate "
1086 			    "hypervisor services revision %d group: 0x%lx "
1087 			    "major: 0x%lx minor: 0x%lx errno: %d",
1088 			    niu_hsvc.hsvc_modname, niu_hsvc.hsvc_rev,
1089 			    niu_hsvc.hsvc_group, niu_hsvc.hsvc_major,
1090 			    niu_hsvc.hsvc_minor, status));
1091 			return (DDI_FAILURE);
1092 		}
1093 		nxgep->niu_hsvc_available = B_TRUE;
1094 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1095 		    "NIU Hypervisor service enabled"));
1096 	}
1097 
1098 	return (DDI_SUCCESS);
1099 }
1100 #endif
1101 
1102 static char n2_siu_name[] = "niu";
1103 
1104 static nxge_status_t
1105 nxge_map_regs(p_nxge_t nxgep)
1106 {
1107 	int		ddi_status = DDI_SUCCESS;
1108 	p_dev_regs_t 	dev_regs;
1109 	char		buf[MAXPATHLEN + 1];
1110 	char 		*devname;
1111 #ifdef	NXGE_DEBUG
1112 	char 		*sysname;
1113 #endif
1114 	off_t		regsize;
1115 	nxge_status_t	status = NXGE_OK;
1116 #if !defined(_BIG_ENDIAN)
1117 	off_t pci_offset;
1118 	uint16_t pcie_devctl;
1119 #endif
1120 
1121 	if (isLDOMguest(nxgep)) {
1122 		return (nxge_guest_regs_map(nxgep));
1123 	}
1124 
1125 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_map_regs"));
1126 	nxgep->dev_regs = NULL;
1127 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
1128 	dev_regs->nxge_regh = NULL;
1129 	dev_regs->nxge_pciregh = NULL;
1130 	dev_regs->nxge_msix_regh = NULL;
1131 	dev_regs->nxge_vir_regh = NULL;
1132 	dev_regs->nxge_vir2_regh = NULL;
1133 	nxgep->niu_type = NIU_TYPE_NONE;
1134 
1135 	devname = ddi_pathname(nxgep->dip, buf);
1136 	ASSERT(strlen(devname) > 0);
1137 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1138 	    "nxge_map_regs: pathname devname %s", devname));
1139 
1140 	/*
1141 	 * The driver is running on a N2-NIU system if devname is something
1142 	 * like "/niu@80/network@0"
1143 	 */
1144 	if (strstr(devname, n2_siu_name)) {
1145 		/* N2/NIU */
1146 		nxgep->niu_type = N2_NIU;
1147 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1148 		    "nxge_map_regs: N2/NIU devname %s", devname));
1149 		/* get function number */
1150 		nxgep->function_num =
1151 		    (devname[strlen(devname) -1] == '1' ? 1 : 0);
1152 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1153 		    "nxge_map_regs: N2/NIU function number %d",
1154 		    nxgep->function_num));
1155 	} else {
1156 		int		*prop_val;
1157 		uint_t 		prop_len;
1158 		uint8_t 	func_num;
1159 
1160 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, nxgep->dip,
1161 		    0, "reg",
1162 		    &prop_val, &prop_len) != DDI_PROP_SUCCESS) {
1163 			NXGE_DEBUG_MSG((nxgep, VPD_CTL,
1164 			    "Reg property not found"));
1165 			ddi_status = DDI_FAILURE;
1166 			goto nxge_map_regs_fail0;
1167 
1168 		} else {
1169 			func_num = (prop_val[0] >> 8) & 0x7;
1170 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1171 			    "Reg property found: fun # %d",
1172 			    func_num));
1173 			nxgep->function_num = func_num;
1174 			if (isLDOMguest(nxgep)) {
1175 				nxgep->function_num /= 2;
1176 				return (NXGE_OK);
1177 			}
1178 			ddi_prop_free(prop_val);
1179 		}
1180 	}
1181 
1182 	switch (nxgep->niu_type) {
1183 	default:
1184 		(void) ddi_dev_regsize(nxgep->dip, 0, &regsize);
1185 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1186 		    "nxge_map_regs: pci config size 0x%x", regsize));
1187 
1188 		ddi_status = ddi_regs_map_setup(nxgep->dip, 0,
1189 		    (caddr_t *)&(dev_regs->nxge_pciregp), 0, 0,
1190 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_pciregh);
1191 		if (ddi_status != DDI_SUCCESS) {
1192 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1193 			    "ddi_map_regs, nxge bus config regs failed"));
1194 			goto nxge_map_regs_fail0;
1195 		}
1196 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1197 		    "nxge_map_reg: PCI config addr 0x%0llx "
1198 		    " handle 0x%0llx", dev_regs->nxge_pciregp,
1199 		    dev_regs->nxge_pciregh));
1200 			/*
1201 			 * IMP IMP
1202 			 * workaround  for bit swapping bug in HW
1203 			 * which ends up in no-snoop = yes
1204 			 * resulting, in DMA not synched properly
1205 			 */
1206 #if !defined(_BIG_ENDIAN)
1207 		/* workarounds for x86 systems */
1208 		pci_offset = 0x80 + PCIE_DEVCTL;
1209 		pcie_devctl = pci_config_get16(dev_regs->nxge_pciregh,
1210 		    pci_offset);
1211 		pcie_devctl &= ~PCIE_DEVCTL_ENABLE_NO_SNOOP;
1212 		pcie_devctl |= PCIE_DEVCTL_RO_EN;
1213 		pci_config_put16(dev_regs->nxge_pciregh, pci_offset,
1214 		    pcie_devctl);
1215 #endif
1216 
1217 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1218 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1219 		    "nxge_map_regs: pio size 0x%x", regsize));
1220 		/* set up the device mapped register */
1221 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1222 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1223 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1224 		if (ddi_status != DDI_SUCCESS) {
1225 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1226 			    "ddi_map_regs for Neptune global reg failed"));
1227 			goto nxge_map_regs_fail1;
1228 		}
1229 
1230 		/* set up the msi/msi-x mapped register */
1231 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1232 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1233 		    "nxge_map_regs: msix size 0x%x", regsize));
1234 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1235 		    (caddr_t *)&(dev_regs->nxge_msix_regp), 0, 0,
1236 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_msix_regh);
1237 		if (ddi_status != DDI_SUCCESS) {
1238 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1239 			    "ddi_map_regs for msi reg failed"));
1240 			goto nxge_map_regs_fail2;
1241 		}
1242 
1243 		/* set up the vio region mapped register */
1244 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1245 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1246 		    "nxge_map_regs: vio size 0x%x", regsize));
1247 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1248 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1249 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1250 
1251 		if (ddi_status != DDI_SUCCESS) {
1252 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1253 			    "ddi_map_regs for nxge vio reg failed"));
1254 			goto nxge_map_regs_fail3;
1255 		}
1256 		nxgep->dev_regs = dev_regs;
1257 
1258 		NPI_PCI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_pciregh);
1259 		NPI_PCI_ADD_HANDLE_SET(nxgep,
1260 		    (npi_reg_ptr_t)dev_regs->nxge_pciregp);
1261 		NPI_MSI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_msix_regh);
1262 		NPI_MSI_ADD_HANDLE_SET(nxgep,
1263 		    (npi_reg_ptr_t)dev_regs->nxge_msix_regp);
1264 
1265 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1266 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1267 
1268 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1269 		NPI_REG_ADD_HANDLE_SET(nxgep,
1270 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1271 
1272 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1273 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1274 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1275 
1276 		break;
1277 
1278 	case N2_NIU:
1279 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "ddi_map_regs, NIU"));
1280 		/*
1281 		 * Set up the device mapped register (FWARC 2006/556)
1282 		 * (changed back to 1: reg starts at 1!)
1283 		 */
1284 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1285 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1286 		    "nxge_map_regs: dev size 0x%x", regsize));
1287 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1288 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1289 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1290 
1291 		if (ddi_status != DDI_SUCCESS) {
1292 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1293 			    "ddi_map_regs for N2/NIU, global reg failed "));
1294 			goto nxge_map_regs_fail1;
1295 		}
1296 
1297 		/* set up the first vio region mapped register */
1298 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1299 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1300 		    "nxge_map_regs: vio (1) size 0x%x", regsize));
1301 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1302 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1303 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1304 
1305 		if (ddi_status != DDI_SUCCESS) {
1306 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1307 			    "ddi_map_regs for nxge vio reg failed"));
1308 			goto nxge_map_regs_fail2;
1309 		}
1310 		/* set up the second vio region mapped register */
1311 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1312 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1313 		    "nxge_map_regs: vio (3) size 0x%x", regsize));
1314 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1315 		    (caddr_t *)&(dev_regs->nxge_vir2_regp), 0, 0,
1316 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir2_regh);
1317 
1318 		if (ddi_status != DDI_SUCCESS) {
1319 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1320 			    "ddi_map_regs for nxge vio2 reg failed"));
1321 			goto nxge_map_regs_fail3;
1322 		}
1323 		nxgep->dev_regs = dev_regs;
1324 
1325 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1326 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1327 
1328 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1329 		NPI_REG_ADD_HANDLE_SET(nxgep,
1330 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1331 
1332 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1333 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1334 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1335 
1336 		NPI_V2REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir2_regh);
1337 		NPI_V2REG_ADD_HANDLE_SET(nxgep,
1338 		    (npi_reg_ptr_t)dev_regs->nxge_vir2_regp);
1339 
1340 		break;
1341 	}
1342 
1343 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "nxge_map_reg: hardware addr 0x%0llx "
1344 	    " handle 0x%0llx", dev_regs->nxge_regp, dev_regs->nxge_regh));
1345 
1346 	goto nxge_map_regs_exit;
1347 nxge_map_regs_fail3:
1348 	if (dev_regs->nxge_msix_regh) {
1349 		ddi_regs_map_free(&dev_regs->nxge_msix_regh);
1350 	}
1351 	if (dev_regs->nxge_vir_regh) {
1352 		ddi_regs_map_free(&dev_regs->nxge_regh);
1353 	}
1354 nxge_map_regs_fail2:
1355 	if (dev_regs->nxge_regh) {
1356 		ddi_regs_map_free(&dev_regs->nxge_regh);
1357 	}
1358 nxge_map_regs_fail1:
1359 	if (dev_regs->nxge_pciregh) {
1360 		ddi_regs_map_free(&dev_regs->nxge_pciregh);
1361 	}
1362 nxge_map_regs_fail0:
1363 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Freeing register set memory"));
1364 	kmem_free(dev_regs, sizeof (dev_regs_t));
1365 
1366 nxge_map_regs_exit:
1367 	if (ddi_status != DDI_SUCCESS)
1368 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1369 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_map_regs"));
1370 	return (status);
1371 }
1372 
1373 static void
1374 nxge_unmap_regs(p_nxge_t nxgep)
1375 {
1376 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unmap_regs"));
1377 
1378 	if (isLDOMguest(nxgep)) {
1379 		nxge_guest_regs_map_free(nxgep);
1380 		return;
1381 	}
1382 
1383 	if (nxgep->dev_regs) {
1384 		if (nxgep->dev_regs->nxge_pciregh) {
1385 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1386 			    "==> nxge_unmap_regs: bus"));
1387 			ddi_regs_map_free(&nxgep->dev_regs->nxge_pciregh);
1388 			nxgep->dev_regs->nxge_pciregh = NULL;
1389 		}
1390 		if (nxgep->dev_regs->nxge_regh) {
1391 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1392 			    "==> nxge_unmap_regs: device registers"));
1393 			ddi_regs_map_free(&nxgep->dev_regs->nxge_regh);
1394 			nxgep->dev_regs->nxge_regh = NULL;
1395 		}
1396 		if (nxgep->dev_regs->nxge_msix_regh) {
1397 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1398 			    "==> nxge_unmap_regs: device interrupts"));
1399 			ddi_regs_map_free(&nxgep->dev_regs->nxge_msix_regh);
1400 			nxgep->dev_regs->nxge_msix_regh = NULL;
1401 		}
1402 		if (nxgep->dev_regs->nxge_vir_regh) {
1403 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1404 			    "==> nxge_unmap_regs: vio region"));
1405 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir_regh);
1406 			nxgep->dev_regs->nxge_vir_regh = NULL;
1407 		}
1408 		if (nxgep->dev_regs->nxge_vir2_regh) {
1409 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1410 			    "==> nxge_unmap_regs: vio2 region"));
1411 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir2_regh);
1412 			nxgep->dev_regs->nxge_vir2_regh = NULL;
1413 		}
1414 
1415 		kmem_free(nxgep->dev_regs, sizeof (dev_regs_t));
1416 		nxgep->dev_regs = NULL;
1417 	}
1418 
1419 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_unmap_regs"));
1420 }
1421 
1422 static nxge_status_t
1423 nxge_setup_mutexes(p_nxge_t nxgep)
1424 {
1425 	int ddi_status = DDI_SUCCESS;
1426 	nxge_status_t status = NXGE_OK;
1427 	nxge_classify_t *classify_ptr;
1428 	int partition;
1429 
1430 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_mutexes"));
1431 
1432 	/*
1433 	 * Get the interrupt cookie so the mutexes can be
1434 	 * Initialized.
1435 	 */
1436 	if (isLDOMguest(nxgep)) {
1437 		nxgep->interrupt_cookie = 0;
1438 	} else {
1439 		ddi_status = ddi_get_iblock_cookie(nxgep->dip, 0,
1440 		    &nxgep->interrupt_cookie);
1441 
1442 		if (ddi_status != DDI_SUCCESS) {
1443 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1444 			    "<== nxge_setup_mutexes: failed 0x%x",
1445 			    ddi_status));
1446 			goto nxge_setup_mutexes_exit;
1447 		}
1448 	}
1449 
1450 	cv_init(&nxgep->poll_cv, NULL, CV_DRIVER, NULL);
1451 	MUTEX_INIT(&nxgep->poll_lock, NULL,
1452 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1453 
1454 	/*
1455 	 * Initialize mutexes for this device.
1456 	 */
1457 	MUTEX_INIT(nxgep->genlock, NULL,
1458 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1459 	MUTEX_INIT(&nxgep->ouraddr_lock, NULL,
1460 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1461 	MUTEX_INIT(&nxgep->mif_lock, NULL,
1462 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1463 	MUTEX_INIT(&nxgep->group_lock, NULL,
1464 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1465 	RW_INIT(&nxgep->filter_lock, NULL,
1466 	    RW_DRIVER, (void *)nxgep->interrupt_cookie);
1467 
1468 	classify_ptr = &nxgep->classifier;
1469 		/*
1470 		 * FFLP Mutexes are never used in interrupt context
1471 		 * as fflp operation can take very long time to
1472 		 * complete and hence not suitable to invoke from interrupt
1473 		 * handlers.
1474 		 */
1475 	MUTEX_INIT(&classify_ptr->tcam_lock, NULL,
1476 	    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1477 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1478 		MUTEX_INIT(&classify_ptr->fcram_lock, NULL,
1479 		    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1480 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1481 			MUTEX_INIT(&classify_ptr->hash_lock[partition], NULL,
1482 			    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1483 		}
1484 	}
1485 
1486 nxge_setup_mutexes_exit:
1487 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1488 	    "<== nxge_setup_mutexes status = %x", status));
1489 
1490 	if (ddi_status != DDI_SUCCESS)
1491 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1492 
1493 	return (status);
1494 }
1495 
1496 static void
1497 nxge_destroy_mutexes(p_nxge_t nxgep)
1498 {
1499 	int partition;
1500 	nxge_classify_t *classify_ptr;
1501 
1502 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_mutexes"));
1503 	RW_DESTROY(&nxgep->filter_lock);
1504 	MUTEX_DESTROY(&nxgep->group_lock);
1505 	MUTEX_DESTROY(&nxgep->mif_lock);
1506 	MUTEX_DESTROY(&nxgep->ouraddr_lock);
1507 	MUTEX_DESTROY(nxgep->genlock);
1508 
1509 	classify_ptr = &nxgep->classifier;
1510 	MUTEX_DESTROY(&classify_ptr->tcam_lock);
1511 
1512 	/* Destroy all polling resources. */
1513 	MUTEX_DESTROY(&nxgep->poll_lock);
1514 	cv_destroy(&nxgep->poll_cv);
1515 
1516 	/* free data structures, based on HW type */
1517 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1518 		MUTEX_DESTROY(&classify_ptr->fcram_lock);
1519 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1520 			MUTEX_DESTROY(&classify_ptr->hash_lock[partition]);
1521 		}
1522 	}
1523 
1524 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_mutexes"));
1525 }
1526 
1527 nxge_status_t
1528 nxge_init(p_nxge_t nxgep)
1529 {
1530 	nxge_status_t status = NXGE_OK;
1531 
1532 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_init"));
1533 
1534 	if (nxgep->drv_state & STATE_HW_INITIALIZED) {
1535 		return (status);
1536 	}
1537 
1538 	/*
1539 	 * Allocate system memory for the receive/transmit buffer blocks
1540 	 * and receive/transmit descriptor rings.
1541 	 */
1542 	status = nxge_alloc_mem_pool(nxgep);
1543 	if (status != NXGE_OK) {
1544 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "alloc mem failed\n"));
1545 		goto nxge_init_fail1;
1546 	}
1547 
1548 	if (!isLDOMguest(nxgep)) {
1549 		/*
1550 		 * Initialize and enable the TXC registers.
1551 		 * (Globally enable the Tx controller,
1552 		 *  enable the port, configure the dma channel bitmap,
1553 		 *  configure the max burst size).
1554 		 */
1555 		status = nxge_txc_init(nxgep);
1556 		if (status != NXGE_OK) {
1557 			NXGE_ERROR_MSG((nxgep,
1558 			    NXGE_ERR_CTL, "init txc failed\n"));
1559 			goto nxge_init_fail2;
1560 		}
1561 	}
1562 
1563 	/*
1564 	 * Initialize and enable TXDMA channels.
1565 	 */
1566 	status = nxge_init_txdma_channels(nxgep);
1567 	if (status != NXGE_OK) {
1568 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init txdma failed\n"));
1569 		goto nxge_init_fail3;
1570 	}
1571 
1572 	/*
1573 	 * Initialize and enable RXDMA channels.
1574 	 */
1575 	status = nxge_init_rxdma_channels(nxgep);
1576 	if (status != NXGE_OK) {
1577 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init rxdma failed\n"));
1578 		goto nxge_init_fail4;
1579 	}
1580 
1581 	/*
1582 	 * The guest domain is now done.
1583 	 */
1584 	if (isLDOMguest(nxgep)) {
1585 		nxgep->drv_state |= STATE_HW_INITIALIZED;
1586 		goto nxge_init_exit;
1587 	}
1588 
1589 	/*
1590 	 * Initialize TCAM and FCRAM (Neptune).
1591 	 */
1592 	status = nxge_classify_init(nxgep);
1593 	if (status != NXGE_OK) {
1594 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init classify failed\n"));
1595 		goto nxge_init_fail5;
1596 	}
1597 
1598 	/*
1599 	 * Initialize ZCP
1600 	 */
1601 	status = nxge_zcp_init(nxgep);
1602 	if (status != NXGE_OK) {
1603 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init ZCP failed\n"));
1604 		goto nxge_init_fail5;
1605 	}
1606 
1607 	/*
1608 	 * Initialize IPP.
1609 	 */
1610 	status = nxge_ipp_init(nxgep);
1611 	if (status != NXGE_OK) {
1612 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init IPP failed\n"));
1613 		goto nxge_init_fail5;
1614 	}
1615 
1616 	/*
1617 	 * Initialize the MAC block.
1618 	 */
1619 	status = nxge_mac_init(nxgep);
1620 	if (status != NXGE_OK) {
1621 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init MAC failed\n"));
1622 		goto nxge_init_fail5;
1623 	}
1624 
1625 	/*
1626 	 * Enable the interrrupts for DDI.
1627 	 */
1628 	nxge_intrs_enable(nxgep);
1629 
1630 	nxgep->drv_state |= STATE_HW_INITIALIZED;
1631 
1632 	goto nxge_init_exit;
1633 
1634 nxge_init_fail5:
1635 	nxge_uninit_rxdma_channels(nxgep);
1636 nxge_init_fail4:
1637 	nxge_uninit_txdma_channels(nxgep);
1638 nxge_init_fail3:
1639 	if (!isLDOMguest(nxgep)) {
1640 		(void) nxge_txc_uninit(nxgep);
1641 	}
1642 nxge_init_fail2:
1643 	nxge_free_mem_pool(nxgep);
1644 nxge_init_fail1:
1645 	NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1646 	    "<== nxge_init status (failed) = 0x%08x", status));
1647 	return (status);
1648 
1649 nxge_init_exit:
1650 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_init status = 0x%08x",
1651 	    status));
1652 	return (status);
1653 }
1654 
1655 
1656 timeout_id_t
1657 nxge_start_timer(p_nxge_t nxgep, fptrv_t func, int msec)
1658 {
1659 	if ((nxgep->suspended == 0) || (nxgep->suspended == DDI_RESUME)) {
1660 		return (timeout(func, (caddr_t)nxgep,
1661 		    drv_usectohz(1000 * msec)));
1662 	}
1663 	return (NULL);
1664 }
1665 
1666 /*ARGSUSED*/
1667 void
1668 nxge_stop_timer(p_nxge_t nxgep, timeout_id_t timerid)
1669 {
1670 	if (timerid) {
1671 		(void) untimeout(timerid);
1672 	}
1673 }
1674 
1675 void
1676 nxge_uninit(p_nxge_t nxgep)
1677 {
1678 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_uninit"));
1679 
1680 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
1681 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1682 		    "==> nxge_uninit: not initialized"));
1683 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1684 		    "<== nxge_uninit"));
1685 		return;
1686 	}
1687 
1688 	if (!isLDOMguest(nxgep)) {
1689 		/*
1690 		 * Reset the receive MAC side.
1691 		 */
1692 		(void) nxge_rx_mac_disable(nxgep);
1693 
1694 		/*
1695 		 * Drain the IPP.
1696 		 */
1697 		(void) nxge_ipp_drain(nxgep);
1698 	}
1699 
1700 	/* stop timer */
1701 	if (nxgep->nxge_timerid) {
1702 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1703 		nxgep->nxge_timerid = 0;
1704 	}
1705 
1706 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
1707 	(void) nxge_intr_hw_disable(nxgep);
1708 
1709 
1710 	/* Disable and soft reset the IPP */
1711 	if (!isLDOMguest(nxgep))
1712 		(void) nxge_ipp_disable(nxgep);
1713 
1714 	/* Free classification resources */
1715 	(void) nxge_classify_uninit(nxgep);
1716 
1717 	/*
1718 	 * Reset the transmit/receive DMA side.
1719 	 */
1720 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
1721 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
1722 
1723 	nxge_uninit_txdma_channels(nxgep);
1724 	nxge_uninit_rxdma_channels(nxgep);
1725 
1726 	/*
1727 	 * Reset the transmit MAC side.
1728 	 */
1729 	(void) nxge_tx_mac_disable(nxgep);
1730 
1731 	nxge_free_mem_pool(nxgep);
1732 
1733 	/*
1734 	 * Start the timer if the reset flag is not set.
1735 	 * If this reset flag is set, the link monitor
1736 	 * will not be started in order to stop furthur bus
1737 	 * activities coming from this interface.
1738 	 * The driver will start the monitor function
1739 	 * if the interface was initialized again later.
1740 	 */
1741 	if (!nxge_peu_reset_enable) {
1742 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1743 	}
1744 
1745 	nxgep->drv_state &= ~STATE_HW_INITIALIZED;
1746 
1747 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_uninit: "
1748 	    "nxge_mblks_pending %d", nxge_mblks_pending));
1749 }
1750 
1751 void
1752 nxge_get64(p_nxge_t nxgep, p_mblk_t mp)
1753 {
1754 	uint64_t	reg;
1755 	uint64_t	regdata;
1756 	int		i, retry;
1757 
1758 	bcopy((char *)mp->b_rptr, (char *)&reg, sizeof (uint64_t));
1759 	regdata = 0;
1760 	retry = 1;
1761 
1762 	for (i = 0; i < retry; i++) {
1763 		NXGE_REG_RD64(nxgep->npi_handle, reg, &regdata);
1764 	}
1765 	bcopy((char *)&regdata, (char *)mp->b_rptr, sizeof (uint64_t));
1766 }
1767 
1768 void
1769 nxge_put64(p_nxge_t nxgep, p_mblk_t mp)
1770 {
1771 	uint64_t	reg;
1772 	uint64_t	buf[2];
1773 
1774 	bcopy((char *)mp->b_rptr, (char *)&buf[0], 2 * sizeof (uint64_t));
1775 	reg = buf[0];
1776 
1777 	NXGE_NPI_PIO_WRITE64(nxgep->npi_handle, reg, buf[1]);
1778 }
1779 
1780 /*ARGSUSED*/
1781 /*VARARGS*/
1782 void
1783 nxge_debug_msg(p_nxge_t nxgep, uint64_t level, char *fmt, ...)
1784 {
1785 	char msg_buffer[1048];
1786 	char prefix_buffer[32];
1787 	int instance;
1788 	uint64_t debug_level;
1789 	int cmn_level = CE_CONT;
1790 	va_list ap;
1791 
1792 	if (nxgep && nxgep->nxge_debug_level != nxge_debug_level) {
1793 		/* In case a developer has changed nxge_debug_level. */
1794 		if (nxgep->nxge_debug_level != nxge_debug_level)
1795 			nxgep->nxge_debug_level = nxge_debug_level;
1796 	}
1797 
1798 	debug_level = (nxgep == NULL) ? nxge_debug_level :
1799 	    nxgep->nxge_debug_level;
1800 
1801 	if ((level & debug_level) ||
1802 	    (level == NXGE_NOTE) ||
1803 	    (level == NXGE_ERR_CTL)) {
1804 		/* do the msg processing */
1805 		MUTEX_ENTER(&nxgedebuglock);
1806 
1807 		if ((level & NXGE_NOTE)) {
1808 			cmn_level = CE_NOTE;
1809 		}
1810 
1811 		if (level & NXGE_ERR_CTL) {
1812 			cmn_level = CE_WARN;
1813 		}
1814 
1815 		va_start(ap, fmt);
1816 		(void) vsprintf(msg_buffer, fmt, ap);
1817 		va_end(ap);
1818 		if (nxgep == NULL) {
1819 			instance = -1;
1820 			(void) sprintf(prefix_buffer, "%s :", "nxge");
1821 		} else {
1822 			instance = nxgep->instance;
1823 			(void) sprintf(prefix_buffer,
1824 			    "%s%d :", "nxge", instance);
1825 		}
1826 
1827 		MUTEX_EXIT(&nxgedebuglock);
1828 		cmn_err(cmn_level, "!%s %s\n",
1829 		    prefix_buffer, msg_buffer);
1830 
1831 	}
1832 }
1833 
1834 char *
1835 nxge_dump_packet(char *addr, int size)
1836 {
1837 	uchar_t *ap = (uchar_t *)addr;
1838 	int i;
1839 	static char etherbuf[1024];
1840 	char *cp = etherbuf;
1841 	char digits[] = "0123456789abcdef";
1842 
1843 	if (!size)
1844 		size = 60;
1845 
1846 	if (size > MAX_DUMP_SZ) {
1847 		/* Dump the leading bytes */
1848 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1849 			if (*ap > 0x0f)
1850 				*cp++ = digits[*ap >> 4];
1851 			*cp++ = digits[*ap++ & 0xf];
1852 			*cp++ = ':';
1853 		}
1854 		for (i = 0; i < 20; i++)
1855 			*cp++ = '.';
1856 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1857 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ/2));
1858 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1859 			if (*ap > 0x0f)
1860 				*cp++ = digits[*ap >> 4];
1861 			*cp++ = digits[*ap++ & 0xf];
1862 			*cp++ = ':';
1863 		}
1864 	} else {
1865 		for (i = 0; i < size; i++) {
1866 			if (*ap > 0x0f)
1867 				*cp++ = digits[*ap >> 4];
1868 			*cp++ = digits[*ap++ & 0xf];
1869 			*cp++ = ':';
1870 		}
1871 	}
1872 	*--cp = 0;
1873 	return (etherbuf);
1874 }
1875 
1876 #ifdef	NXGE_DEBUG
1877 static void
1878 nxge_test_map_regs(p_nxge_t nxgep)
1879 {
1880 	ddi_acc_handle_t cfg_handle;
1881 	p_pci_cfg_t	cfg_ptr;
1882 	ddi_acc_handle_t dev_handle;
1883 	char		*dev_ptr;
1884 	ddi_acc_handle_t pci_config_handle;
1885 	uint32_t	regval;
1886 	int		i;
1887 
1888 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_test_map_regs"));
1889 
1890 	dev_handle = nxgep->dev_regs->nxge_regh;
1891 	dev_ptr = (char *)nxgep->dev_regs->nxge_regp;
1892 
1893 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1894 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1895 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1896 
1897 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1898 		    "Neptune PCI regp cfg_ptr 0x%llx", (char *)cfg_ptr));
1899 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1900 		    "Neptune PCI cfg_ptr vendor id ptr 0x%llx",
1901 		    &cfg_ptr->vendorid));
1902 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1903 		    "\tvendorid 0x%x devid 0x%x",
1904 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->vendorid, 0),
1905 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->devid,    0)));
1906 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1907 		    "PCI BAR: base 0x%x base14 0x%x base 18 0x%x "
1908 		    "bar1c 0x%x",
1909 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base,   0),
1910 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base14, 0),
1911 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base18, 0),
1912 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base1c, 0)));
1913 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1914 		    "\nNeptune PCI BAR: base20 0x%x base24 0x%x "
1915 		    "base 28 0x%x bar2c 0x%x\n",
1916 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base20, 0),
1917 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base24, 0),
1918 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base28, 0),
1919 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base2c, 0)));
1920 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1921 		    "\nNeptune PCI BAR: base30 0x%x\n",
1922 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base30, 0)));
1923 
1924 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1925 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1926 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1927 		    "first  0x%llx second 0x%llx third 0x%llx "
1928 		    "last 0x%llx ",
1929 		    NXGE_PIO_READ64(dev_handle,
1930 		    (uint64_t *)(dev_ptr + 0),  0),
1931 		    NXGE_PIO_READ64(dev_handle,
1932 		    (uint64_t *)(dev_ptr + 8),  0),
1933 		    NXGE_PIO_READ64(dev_handle,
1934 		    (uint64_t *)(dev_ptr + 16), 0),
1935 		    NXGE_PIO_READ64(cfg_handle,
1936 		    (uint64_t *)(dev_ptr + 24), 0)));
1937 	}
1938 }
1939 
1940 #endif
1941 
1942 static void
1943 nxge_suspend(p_nxge_t nxgep)
1944 {
1945 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_suspend"));
1946 
1947 	nxge_intrs_disable(nxgep);
1948 	nxge_destroy_dev(nxgep);
1949 
1950 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_suspend"));
1951 }
1952 
1953 static nxge_status_t
1954 nxge_resume(p_nxge_t nxgep)
1955 {
1956 	nxge_status_t status = NXGE_OK;
1957 
1958 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_resume"));
1959 
1960 	nxgep->suspended = DDI_RESUME;
1961 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1962 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_START);
1963 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_START);
1964 	(void) nxge_rx_mac_enable(nxgep);
1965 	(void) nxge_tx_mac_enable(nxgep);
1966 	nxge_intrs_enable(nxgep);
1967 	nxgep->suspended = 0;
1968 
1969 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1970 	    "<== nxge_resume status = 0x%x", status));
1971 	return (status);
1972 }
1973 
1974 static nxge_status_t
1975 nxge_setup_dev(p_nxge_t nxgep)
1976 {
1977 	nxge_status_t	status = NXGE_OK;
1978 
1979 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_dev port %d",
1980 	    nxgep->mac.portnum));
1981 
1982 	status = nxge_link_init(nxgep);
1983 
1984 	if (fm_check_acc_handle(nxgep->dev_regs->nxge_regh) != DDI_FM_OK) {
1985 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1986 		    "port%d Bad register acc handle", nxgep->mac.portnum));
1987 		status = NXGE_ERROR;
1988 	}
1989 
1990 	if (status != NXGE_OK) {
1991 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1992 		    " nxge_setup_dev status "
1993 		    "(xcvr init 0x%08x)", status));
1994 		goto nxge_setup_dev_exit;
1995 	}
1996 
1997 nxge_setup_dev_exit:
1998 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1999 	    "<== nxge_setup_dev port %d status = 0x%08x",
2000 	    nxgep->mac.portnum, status));
2001 
2002 	return (status);
2003 }
2004 
2005 static void
2006 nxge_destroy_dev(p_nxge_t nxgep)
2007 {
2008 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_dev"));
2009 
2010 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
2011 
2012 	(void) nxge_hw_stop(nxgep);
2013 
2014 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_dev"));
2015 }
2016 
2017 static nxge_status_t
2018 nxge_setup_system_dma_pages(p_nxge_t nxgep)
2019 {
2020 	int 			ddi_status = DDI_SUCCESS;
2021 	uint_t 			count;
2022 	ddi_dma_cookie_t 	cookie;
2023 	uint_t 			iommu_pagesize;
2024 	nxge_status_t		status = NXGE_OK;
2025 
2026 	NXGE_ERROR_MSG((nxgep, DDI_CTL, "==> nxge_setup_system_dma_pages"));
2027 	nxgep->sys_page_sz = ddi_ptob(nxgep->dip, (ulong_t)1);
2028 	if (nxgep->niu_type != N2_NIU) {
2029 		iommu_pagesize = dvma_pagesize(nxgep->dip);
2030 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2031 		    " nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2032 		    " default_block_size %d iommu_pagesize %d",
2033 		    nxgep->sys_page_sz,
2034 		    ddi_ptob(nxgep->dip, (ulong_t)1),
2035 		    nxgep->rx_default_block_size,
2036 		    iommu_pagesize));
2037 
2038 		if (iommu_pagesize != 0) {
2039 			if (nxgep->sys_page_sz == iommu_pagesize) {
2040 				if (iommu_pagesize > 0x4000)
2041 					nxgep->sys_page_sz = 0x4000;
2042 			} else {
2043 				if (nxgep->sys_page_sz > iommu_pagesize)
2044 					nxgep->sys_page_sz = iommu_pagesize;
2045 			}
2046 		}
2047 	}
2048 	nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2049 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2050 	    "==> nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2051 	    "default_block_size %d page mask %d",
2052 	    nxgep->sys_page_sz,
2053 	    ddi_ptob(nxgep->dip, (ulong_t)1),
2054 	    nxgep->rx_default_block_size,
2055 	    nxgep->sys_page_mask));
2056 
2057 
2058 	switch (nxgep->sys_page_sz) {
2059 	default:
2060 		nxgep->sys_page_sz = 0x1000;
2061 		nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2062 		nxgep->rx_default_block_size = 0x1000;
2063 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2064 		break;
2065 	case 0x1000:
2066 		nxgep->rx_default_block_size = 0x1000;
2067 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2068 		break;
2069 	case 0x2000:
2070 		nxgep->rx_default_block_size = 0x2000;
2071 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2072 		break;
2073 	case 0x4000:
2074 		nxgep->rx_default_block_size = 0x4000;
2075 		nxgep->rx_bksize_code = RBR_BKSIZE_16K;
2076 		break;
2077 	case 0x8000:
2078 		nxgep->rx_default_block_size = 0x8000;
2079 		nxgep->rx_bksize_code = RBR_BKSIZE_32K;
2080 		break;
2081 	}
2082 
2083 #ifndef USE_RX_BIG_BUF
2084 	nxge_rx_dma_attr.dma_attr_align = nxgep->sys_page_sz;
2085 #else
2086 		nxgep->rx_default_block_size = 0x2000;
2087 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2088 #endif
2089 	/*
2090 	 * Get the system DMA burst size.
2091 	 */
2092 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, &nxge_tx_dma_attr,
2093 	    DDI_DMA_DONTWAIT, 0,
2094 	    &nxgep->dmasparehandle);
2095 	if (ddi_status != DDI_SUCCESS) {
2096 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2097 		    "ddi_dma_alloc_handle: failed "
2098 		    " status 0x%x", ddi_status));
2099 		goto nxge_get_soft_properties_exit;
2100 	}
2101 
2102 	ddi_status = ddi_dma_addr_bind_handle(nxgep->dmasparehandle, NULL,
2103 	    (caddr_t)nxgep->dmasparehandle,
2104 	    sizeof (nxgep->dmasparehandle),
2105 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2106 	    DDI_DMA_DONTWAIT, 0,
2107 	    &cookie, &count);
2108 	if (ddi_status != DDI_DMA_MAPPED) {
2109 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2110 		    "Binding spare handle to find system"
2111 		    " burstsize failed."));
2112 		ddi_status = DDI_FAILURE;
2113 		goto nxge_get_soft_properties_fail1;
2114 	}
2115 
2116 	nxgep->sys_burst_sz = ddi_dma_burstsizes(nxgep->dmasparehandle);
2117 	(void) ddi_dma_unbind_handle(nxgep->dmasparehandle);
2118 
2119 nxge_get_soft_properties_fail1:
2120 	ddi_dma_free_handle(&nxgep->dmasparehandle);
2121 
2122 nxge_get_soft_properties_exit:
2123 
2124 	if (ddi_status != DDI_SUCCESS)
2125 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2126 
2127 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2128 	    "<== nxge_setup_system_dma_pages status = 0x%08x", status));
2129 	return (status);
2130 }
2131 
2132 static nxge_status_t
2133 nxge_alloc_mem_pool(p_nxge_t nxgep)
2134 {
2135 	nxge_status_t	status = NXGE_OK;
2136 
2137 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_alloc_mem_pool"));
2138 
2139 	status = nxge_alloc_rx_mem_pool(nxgep);
2140 	if (status != NXGE_OK) {
2141 		return (NXGE_ERROR);
2142 	}
2143 
2144 	status = nxge_alloc_tx_mem_pool(nxgep);
2145 	if (status != NXGE_OK) {
2146 		nxge_free_rx_mem_pool(nxgep);
2147 		return (NXGE_ERROR);
2148 	}
2149 
2150 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_alloc_mem_pool"));
2151 	return (NXGE_OK);
2152 }
2153 
2154 static void
2155 nxge_free_mem_pool(p_nxge_t nxgep)
2156 {
2157 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_mem_pool"));
2158 
2159 	nxge_free_rx_mem_pool(nxgep);
2160 	nxge_free_tx_mem_pool(nxgep);
2161 
2162 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_mem_pool"));
2163 }
2164 
2165 nxge_status_t
2166 nxge_alloc_rx_mem_pool(p_nxge_t nxgep)
2167 {
2168 	uint32_t		rdc_max;
2169 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
2170 	p_nxge_hw_pt_cfg_t	p_cfgp;
2171 	p_nxge_dma_pool_t	dma_poolp;
2172 	p_nxge_dma_common_t	*dma_buf_p;
2173 	p_nxge_dma_pool_t	dma_cntl_poolp;
2174 	p_nxge_dma_common_t	*dma_cntl_p;
2175 	uint32_t 		*num_chunks; /* per dma */
2176 	nxge_status_t		status = NXGE_OK;
2177 
2178 	uint32_t		nxge_port_rbr_size;
2179 	uint32_t		nxge_port_rbr_spare_size;
2180 	uint32_t		nxge_port_rcr_size;
2181 	uint32_t		rx_cntl_alloc_size;
2182 
2183 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_mem_pool"));
2184 
2185 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
2186 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
2187 	rdc_max = NXGE_MAX_RDCS;
2188 
2189 	/*
2190 	 * Allocate memory for the common DMA data structures.
2191 	 */
2192 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2193 	    KM_SLEEP);
2194 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2195 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2196 
2197 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2198 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2199 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2200 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2201 
2202 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2203 	    sizeof (uint32_t) * rdc_max, KM_SLEEP);
2204 
2205 	/*
2206 	 * Assume that each DMA channel will be configured with
2207 	 * the default block size.
2208 	 * rbr block counts are modulo the batch count (16).
2209 	 */
2210 	nxge_port_rbr_size = p_all_cfgp->rbr_size;
2211 	nxge_port_rcr_size = p_all_cfgp->rcr_size;
2212 
2213 	if (!nxge_port_rbr_size) {
2214 		nxge_port_rbr_size = NXGE_RBR_RBB_DEFAULT;
2215 	}
2216 	if (nxge_port_rbr_size % NXGE_RXDMA_POST_BATCH) {
2217 		nxge_port_rbr_size = (NXGE_RXDMA_POST_BATCH *
2218 		    (nxge_port_rbr_size / NXGE_RXDMA_POST_BATCH + 1));
2219 	}
2220 
2221 	p_all_cfgp->rbr_size = nxge_port_rbr_size;
2222 	nxge_port_rbr_spare_size = nxge_rbr_spare_size;
2223 
2224 	if (nxge_port_rbr_spare_size % NXGE_RXDMA_POST_BATCH) {
2225 		nxge_port_rbr_spare_size = (NXGE_RXDMA_POST_BATCH *
2226 		    (nxge_port_rbr_spare_size / NXGE_RXDMA_POST_BATCH + 1));
2227 	}
2228 	if (nxge_port_rbr_size > RBR_DEFAULT_MAX_BLKS) {
2229 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2230 		    "nxge_alloc_rx_mem_pool: RBR size too high %d, "
2231 		    "set to default %d",
2232 		    nxge_port_rbr_size, RBR_DEFAULT_MAX_BLKS));
2233 		nxge_port_rbr_size = RBR_DEFAULT_MAX_BLKS;
2234 	}
2235 	if (nxge_port_rcr_size > RCR_DEFAULT_MAX) {
2236 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2237 		    "nxge_alloc_rx_mem_pool: RCR too high %d, "
2238 		    "set to default %d",
2239 		    nxge_port_rcr_size, RCR_DEFAULT_MAX));
2240 		nxge_port_rcr_size = RCR_DEFAULT_MAX;
2241 	}
2242 
2243 	/*
2244 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2245 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2246 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2247 	 * function).
2248 	 */
2249 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2250 	if (nxgep->niu_type == N2_NIU) {
2251 		nxge_port_rbr_spare_size = 0;
2252 		if ((nxge_port_rbr_size > NXGE_NIU_CONTIG_RBR_MAX) ||
2253 		    (!ISP2(nxge_port_rbr_size))) {
2254 			nxge_port_rbr_size = NXGE_NIU_CONTIG_RBR_MAX;
2255 		}
2256 		if ((nxge_port_rcr_size > NXGE_NIU_CONTIG_RCR_MAX) ||
2257 		    (!ISP2(nxge_port_rcr_size))) {
2258 			nxge_port_rcr_size = NXGE_NIU_CONTIG_RCR_MAX;
2259 		}
2260 	}
2261 #endif
2262 
2263 	/*
2264 	 * Addresses of receive block ring, receive completion ring and the
2265 	 * mailbox must be all cache-aligned (64 bytes).
2266 	 */
2267 	rx_cntl_alloc_size = nxge_port_rbr_size + nxge_port_rbr_spare_size;
2268 	rx_cntl_alloc_size *= (sizeof (rx_desc_t));
2269 	rx_cntl_alloc_size += (sizeof (rcr_entry_t) * nxge_port_rcr_size);
2270 	rx_cntl_alloc_size += sizeof (rxdma_mailbox_t);
2271 
2272 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_alloc_rx_mem_pool: "
2273 	    "nxge_port_rbr_size = %d nxge_port_rbr_spare_size = %d "
2274 	    "nxge_port_rcr_size = %d "
2275 	    "rx_cntl_alloc_size = %d",
2276 	    nxge_port_rbr_size, nxge_port_rbr_spare_size,
2277 	    nxge_port_rcr_size,
2278 	    rx_cntl_alloc_size));
2279 
2280 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2281 	if (nxgep->niu_type == N2_NIU) {
2282 		uint32_t rx_buf_alloc_size = (nxgep->rx_default_block_size *
2283 		    (nxge_port_rbr_size + nxge_port_rbr_spare_size));
2284 
2285 		if (!ISP2(rx_buf_alloc_size)) {
2286 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2287 			    "==> nxge_alloc_rx_mem_pool: "
2288 			    " must be power of 2"));
2289 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2290 			goto nxge_alloc_rx_mem_pool_exit;
2291 		}
2292 
2293 		if (rx_buf_alloc_size > (1 << 22)) {
2294 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2295 			    "==> nxge_alloc_rx_mem_pool: "
2296 			    " limit size to 4M"));
2297 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2298 			goto nxge_alloc_rx_mem_pool_exit;
2299 		}
2300 
2301 		if (rx_cntl_alloc_size < 0x2000) {
2302 			rx_cntl_alloc_size = 0x2000;
2303 		}
2304 	}
2305 #endif
2306 	nxgep->nxge_port_rbr_size = nxge_port_rbr_size;
2307 	nxgep->nxge_port_rcr_size = nxge_port_rcr_size;
2308 	nxgep->nxge_port_rbr_spare_size = nxge_port_rbr_spare_size;
2309 	nxgep->nxge_port_rx_cntl_alloc_size = rx_cntl_alloc_size;
2310 
2311 	dma_poolp->ndmas = p_cfgp->max_rdcs;
2312 	dma_poolp->num_chunks = num_chunks;
2313 	dma_poolp->buf_allocated = B_TRUE;
2314 	nxgep->rx_buf_pool_p = dma_poolp;
2315 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2316 
2317 	dma_cntl_poolp->ndmas = p_cfgp->max_rdcs;
2318 	dma_cntl_poolp->buf_allocated = B_TRUE;
2319 	nxgep->rx_cntl_pool_p = dma_cntl_poolp;
2320 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2321 
2322 	/* Allocate the receive rings, too. */
2323 	nxgep->rx_rbr_rings =
2324 	    KMEM_ZALLOC(sizeof (rx_rbr_rings_t), KM_SLEEP);
2325 	nxgep->rx_rbr_rings->rbr_rings =
2326 	    KMEM_ZALLOC(sizeof (p_rx_rbr_ring_t) * rdc_max, KM_SLEEP);
2327 	nxgep->rx_rcr_rings =
2328 	    KMEM_ZALLOC(sizeof (rx_rcr_rings_t), KM_SLEEP);
2329 	nxgep->rx_rcr_rings->rcr_rings =
2330 	    KMEM_ZALLOC(sizeof (p_rx_rcr_ring_t) * rdc_max, KM_SLEEP);
2331 	nxgep->rx_mbox_areas_p =
2332 	    KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
2333 	nxgep->rx_mbox_areas_p->rxmbox_areas =
2334 	    KMEM_ZALLOC(sizeof (p_rx_mbox_t) * rdc_max, KM_SLEEP);
2335 
2336 	nxgep->rx_rbr_rings->ndmas = nxgep->rx_rcr_rings->ndmas =
2337 	    p_cfgp->max_rdcs;
2338 
2339 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2340 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2341 
2342 nxge_alloc_rx_mem_pool_exit:
2343 	return (status);
2344 }
2345 
2346 /*
2347  * nxge_alloc_rxb
2348  *
2349  *	Allocate buffers for an RDC.
2350  *
2351  * Arguments:
2352  * 	nxgep
2353  * 	channel	The channel to map into our kernel space.
2354  *
2355  * Notes:
2356  *
2357  * NPI function calls:
2358  *
2359  * NXGE function calls:
2360  *
2361  * Registers accessed:
2362  *
2363  * Context:
2364  *
2365  * Taking apart:
2366  *
2367  * Open questions:
2368  *
2369  */
2370 nxge_status_t
2371 nxge_alloc_rxb(
2372 	p_nxge_t nxgep,
2373 	int channel)
2374 {
2375 	size_t			rx_buf_alloc_size;
2376 	nxge_status_t		status = NXGE_OK;
2377 
2378 	nxge_dma_common_t	**data;
2379 	nxge_dma_common_t	**control;
2380 	uint32_t 		*num_chunks;
2381 
2382 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2383 
2384 	/*
2385 	 * Allocate memory for the receive buffers and descriptor rings.
2386 	 * Replace these allocation functions with the interface functions
2387 	 * provided by the partition manager if/when they are available.
2388 	 */
2389 
2390 	/*
2391 	 * Allocate memory for the receive buffer blocks.
2392 	 */
2393 	rx_buf_alloc_size = (nxgep->rx_default_block_size *
2394 	    (nxgep->nxge_port_rbr_size + nxgep->nxge_port_rbr_spare_size));
2395 
2396 	data = &nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2397 	num_chunks = &nxgep->rx_buf_pool_p->num_chunks[channel];
2398 
2399 	if ((status = nxge_alloc_rx_buf_dma(
2400 	    nxgep, channel, data, rx_buf_alloc_size,
2401 	    nxgep->rx_default_block_size, num_chunks)) != NXGE_OK) {
2402 		return (status);
2403 	}
2404 
2405 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_alloc_rxb(): "
2406 	    "dma %d dma_buf_p %llx &dma_buf_p %llx", channel, *data, data));
2407 
2408 	/*
2409 	 * Allocate memory for descriptor rings and mailbox.
2410 	 */
2411 	control = &nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2412 
2413 	if ((status = nxge_alloc_rx_cntl_dma(
2414 	    nxgep, channel, control, nxgep->nxge_port_rx_cntl_alloc_size))
2415 	    != NXGE_OK) {
2416 		nxge_free_rx_cntl_dma(nxgep, *control);
2417 		(*data)->buf_alloc_state |= BUF_ALLOCATED_WAIT_FREE;
2418 		nxge_free_rx_buf_dma(nxgep, *data, *num_chunks);
2419 		return (status);
2420 	}
2421 
2422 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2423 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2424 
2425 	return (status);
2426 }
2427 
2428 void
2429 nxge_free_rxb(
2430 	p_nxge_t nxgep,
2431 	int channel)
2432 {
2433 	nxge_dma_common_t	*data;
2434 	nxge_dma_common_t	*control;
2435 	uint32_t 		num_chunks;
2436 
2437 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2438 
2439 	data = nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2440 	num_chunks = nxgep->rx_buf_pool_p->num_chunks[channel];
2441 	nxge_free_rx_buf_dma(nxgep, data, num_chunks);
2442 
2443 	nxgep->rx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2444 	nxgep->rx_buf_pool_p->num_chunks[channel] = 0;
2445 
2446 	control = nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2447 	nxge_free_rx_cntl_dma(nxgep, control);
2448 
2449 	nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2450 
2451 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2452 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2453 
2454 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_alloc_rbb"));
2455 }
2456 
2457 static void
2458 nxge_free_rx_mem_pool(p_nxge_t nxgep)
2459 {
2460 	int rdc_max = NXGE_MAX_RDCS;
2461 
2462 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_mem_pool"));
2463 
2464 	if (!nxgep->rx_buf_pool_p || !nxgep->rx_buf_pool_p->buf_allocated) {
2465 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2466 		    "<== nxge_free_rx_mem_pool "
2467 		    "(null rx buf pool or buf not allocated"));
2468 		return;
2469 	}
2470 	if (!nxgep->rx_cntl_pool_p || !nxgep->rx_cntl_pool_p->buf_allocated) {
2471 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2472 		    "<== nxge_free_rx_mem_pool "
2473 		    "(null rx cntl buf pool or cntl buf not allocated"));
2474 		return;
2475 	}
2476 
2477 	KMEM_FREE(nxgep->rx_cntl_pool_p->dma_buf_pool_p,
2478 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2479 	KMEM_FREE(nxgep->rx_cntl_pool_p, sizeof (nxge_dma_pool_t));
2480 
2481 	KMEM_FREE(nxgep->rx_buf_pool_p->num_chunks,
2482 	    sizeof (uint32_t) * rdc_max);
2483 	KMEM_FREE(nxgep->rx_buf_pool_p->dma_buf_pool_p,
2484 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2485 	KMEM_FREE(nxgep->rx_buf_pool_p, sizeof (nxge_dma_pool_t));
2486 
2487 	nxgep->rx_buf_pool_p = 0;
2488 	nxgep->rx_cntl_pool_p = 0;
2489 
2490 	KMEM_FREE(nxgep->rx_rbr_rings->rbr_rings,
2491 	    sizeof (p_rx_rbr_ring_t) * rdc_max);
2492 	KMEM_FREE(nxgep->rx_rbr_rings, sizeof (rx_rbr_rings_t));
2493 	KMEM_FREE(nxgep->rx_rcr_rings->rcr_rings,
2494 	    sizeof (p_rx_rcr_ring_t) * rdc_max);
2495 	KMEM_FREE(nxgep->rx_rcr_rings, sizeof (rx_rcr_rings_t));
2496 	KMEM_FREE(nxgep->rx_mbox_areas_p->rxmbox_areas,
2497 	    sizeof (p_rx_mbox_t) * rdc_max);
2498 	KMEM_FREE(nxgep->rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
2499 
2500 	nxgep->rx_rbr_rings = 0;
2501 	nxgep->rx_rcr_rings = 0;
2502 	nxgep->rx_mbox_areas_p = 0;
2503 
2504 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_rx_mem_pool"));
2505 }
2506 
2507 
2508 static nxge_status_t
2509 nxge_alloc_rx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2510 	p_nxge_dma_common_t *dmap,
2511 	size_t alloc_size, size_t block_size, uint32_t *num_chunks)
2512 {
2513 	p_nxge_dma_common_t 	rx_dmap;
2514 	nxge_status_t		status = NXGE_OK;
2515 	size_t			total_alloc_size;
2516 	size_t			allocated = 0;
2517 	int			i, size_index, array_size;
2518 	boolean_t		use_kmem_alloc = B_FALSE;
2519 
2520 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_buf_dma"));
2521 
2522 	rx_dmap = (p_nxge_dma_common_t)
2523 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2524 	    KM_SLEEP);
2525 
2526 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2527 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
2528 	    dma_channel, alloc_size, block_size, dmap));
2529 
2530 	total_alloc_size = alloc_size;
2531 
2532 #if defined(RX_USE_RECLAIM_POST)
2533 	total_alloc_size = alloc_size + alloc_size/4;
2534 #endif
2535 
2536 	i = 0;
2537 	size_index = 0;
2538 	array_size =  sizeof (alloc_sizes)/sizeof (size_t);
2539 	while ((size_index < array_size) &&
2540 	    (alloc_sizes[size_index] < alloc_size))
2541 		size_index++;
2542 	if (size_index >= array_size) {
2543 		size_index = array_size - 1;
2544 	}
2545 
2546 	/* For Neptune, use kmem_alloc if the kmem flag is set. */
2547 	if (nxgep->niu_type != N2_NIU && nxge_use_kmem_alloc) {
2548 		use_kmem_alloc = B_TRUE;
2549 #if defined(__i386) || defined(__amd64)
2550 		size_index = 0;
2551 #endif
2552 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2553 		    "==> nxge_alloc_rx_buf_dma: "
2554 		    "Neptune use kmem_alloc() - size_index %d",
2555 		    size_index));
2556 	}
2557 
2558 	while ((allocated < total_alloc_size) &&
2559 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2560 		rx_dmap[i].dma_chunk_index = i;
2561 		rx_dmap[i].block_size = block_size;
2562 		rx_dmap[i].alength = alloc_sizes[size_index];
2563 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
2564 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2565 		rx_dmap[i].dma_channel = dma_channel;
2566 		rx_dmap[i].contig_alloc_type = B_FALSE;
2567 		rx_dmap[i].kmem_alloc_type = B_FALSE;
2568 		rx_dmap[i].buf_alloc_type = DDI_MEM_ALLOC;
2569 
2570 		/*
2571 		 * N2/NIU: data buffers must be contiguous as the driver
2572 		 *	   needs to call Hypervisor api to set up
2573 		 *	   logical pages.
2574 		 */
2575 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2576 			rx_dmap[i].contig_alloc_type = B_TRUE;
2577 			rx_dmap[i].buf_alloc_type = CONTIG_MEM_ALLOC;
2578 		} else if (use_kmem_alloc) {
2579 			/* For Neptune, use kmem_alloc */
2580 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2581 			    "==> nxge_alloc_rx_buf_dma: "
2582 			    "Neptune use kmem_alloc()"));
2583 			rx_dmap[i].kmem_alloc_type = B_TRUE;
2584 			rx_dmap[i].buf_alloc_type = KMEM_ALLOC;
2585 		}
2586 
2587 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2588 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
2589 		    "i %d nblocks %d alength %d",
2590 		    dma_channel, i, &rx_dmap[i], block_size,
2591 		    i, rx_dmap[i].nblocks,
2592 		    rx_dmap[i].alength));
2593 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2594 		    &nxge_rx_dma_attr,
2595 		    rx_dmap[i].alength,
2596 		    &nxge_dev_buf_dma_acc_attr,
2597 		    DDI_DMA_READ | DDI_DMA_STREAMING,
2598 		    (p_nxge_dma_common_t)(&rx_dmap[i]));
2599 		if (status != NXGE_OK) {
2600 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2601 			    "nxge_alloc_rx_buf_dma: Alloc Failed: "
2602 			    "dma %d size_index %d size requested %d",
2603 			    dma_channel,
2604 			    size_index,
2605 			    rx_dmap[i].alength));
2606 			size_index--;
2607 		} else {
2608 			rx_dmap[i].buf_alloc_state = BUF_ALLOCATED;
2609 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2610 			    " nxge_alloc_rx_buf_dma DONE  alloc mem: "
2611 			    "dma %d dma_buf_p $%p kaddrp $%p alength %d "
2612 			    "buf_alloc_state %d alloc_type %d",
2613 			    dma_channel,
2614 			    &rx_dmap[i],
2615 			    rx_dmap[i].kaddrp,
2616 			    rx_dmap[i].alength,
2617 			    rx_dmap[i].buf_alloc_state,
2618 			    rx_dmap[i].buf_alloc_type));
2619 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2620 			    " alloc_rx_buf_dma allocated rdc %d "
2621 			    "chunk %d size %x dvma %x bufp %llx kaddrp $%p",
2622 			    dma_channel, i, rx_dmap[i].alength,
2623 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i],
2624 			    rx_dmap[i].kaddrp));
2625 			i++;
2626 			allocated += alloc_sizes[size_index];
2627 		}
2628 	}
2629 
2630 	if (allocated < total_alloc_size) {
2631 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2632 		    "==> nxge_alloc_rx_buf_dma: not enough for channel %d "
2633 		    "allocated 0x%x requested 0x%x",
2634 		    dma_channel,
2635 		    allocated, total_alloc_size));
2636 		status = NXGE_ERROR;
2637 		goto nxge_alloc_rx_mem_fail1;
2638 	}
2639 
2640 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2641 	    "==> nxge_alloc_rx_buf_dma: Allocated for channel %d "
2642 	    "allocated 0x%x requested 0x%x",
2643 	    dma_channel,
2644 	    allocated, total_alloc_size));
2645 
2646 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2647 	    " alloc_rx_buf_dma rdc %d allocated %d chunks",
2648 	    dma_channel, i));
2649 	*num_chunks = i;
2650 	*dmap = rx_dmap;
2651 
2652 	goto nxge_alloc_rx_mem_exit;
2653 
2654 nxge_alloc_rx_mem_fail1:
2655 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2656 
2657 nxge_alloc_rx_mem_exit:
2658 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2659 	    "<== nxge_alloc_rx_buf_dma status 0x%08x", status));
2660 
2661 	return (status);
2662 }
2663 
2664 /*ARGSUSED*/
2665 static void
2666 nxge_free_rx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2667     uint32_t num_chunks)
2668 {
2669 	int		i;
2670 
2671 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2672 	    "==> nxge_free_rx_buf_dma: # of chunks %d", num_chunks));
2673 
2674 	if (dmap == 0)
2675 		return;
2676 
2677 	for (i = 0; i < num_chunks; i++) {
2678 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2679 		    "==> nxge_free_rx_buf_dma: chunk %d dmap 0x%llx",
2680 		    i, dmap));
2681 		nxge_dma_free_rx_data_buf(dmap++);
2682 	}
2683 
2684 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_buf_dma"));
2685 }
2686 
2687 /*ARGSUSED*/
2688 static nxge_status_t
2689 nxge_alloc_rx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2690     p_nxge_dma_common_t *dmap, size_t size)
2691 {
2692 	p_nxge_dma_common_t 	rx_dmap;
2693 	nxge_status_t		status = NXGE_OK;
2694 
2695 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_cntl_dma"));
2696 
2697 	rx_dmap = (p_nxge_dma_common_t)
2698 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2699 
2700 	rx_dmap->contig_alloc_type = B_FALSE;
2701 	rx_dmap->kmem_alloc_type = B_FALSE;
2702 
2703 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2704 	    &nxge_desc_dma_attr,
2705 	    size,
2706 	    &nxge_dev_desc_dma_acc_attr,
2707 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2708 	    rx_dmap);
2709 	if (status != NXGE_OK) {
2710 		goto nxge_alloc_rx_cntl_dma_fail1;
2711 	}
2712 
2713 	*dmap = rx_dmap;
2714 	goto nxge_alloc_rx_cntl_dma_exit;
2715 
2716 nxge_alloc_rx_cntl_dma_fail1:
2717 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t));
2718 
2719 nxge_alloc_rx_cntl_dma_exit:
2720 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2721 	    "<== nxge_alloc_rx_cntl_dma status 0x%08x", status));
2722 
2723 	return (status);
2724 }
2725 
2726 /*ARGSUSED*/
2727 static void
2728 nxge_free_rx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2729 {
2730 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_rx_cntl_dma"));
2731 
2732 	if (dmap == 0)
2733 		return;
2734 
2735 	nxge_dma_mem_free(dmap);
2736 
2737 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_rx_cntl_dma"));
2738 }
2739 
2740 typedef struct {
2741 	size_t	tx_size;
2742 	size_t	cr_size;
2743 	size_t	threshhold;
2744 } nxge_tdc_sizes_t;
2745 
2746 static
2747 nxge_status_t
2748 nxge_tdc_sizes(
2749 	nxge_t *nxgep,
2750 	nxge_tdc_sizes_t *sizes)
2751 {
2752 	uint32_t threshhold;	/* The bcopy() threshhold */
2753 	size_t tx_size;		/* Transmit buffer size */
2754 	size_t cr_size;		/* Completion ring size */
2755 
2756 	/*
2757 	 * Assume that each DMA channel will be configured with the
2758 	 * default transmit buffer size for copying transmit data.
2759 	 * (If a packet is bigger than this, it will not be copied.)
2760 	 */
2761 	if (nxgep->niu_type == N2_NIU) {
2762 		threshhold = TX_BCOPY_SIZE;
2763 	} else {
2764 		threshhold = nxge_bcopy_thresh;
2765 	}
2766 	tx_size = nxge_tx_ring_size * threshhold;
2767 
2768 	cr_size = nxge_tx_ring_size * sizeof (tx_desc_t);
2769 	cr_size += sizeof (txdma_mailbox_t);
2770 
2771 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2772 	if (nxgep->niu_type == N2_NIU) {
2773 		if (!ISP2(tx_size)) {
2774 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2775 			    "==> nxge_tdc_sizes: Tx size"
2776 			    " must be power of 2"));
2777 			return (NXGE_ERROR);
2778 		}
2779 
2780 		if (tx_size > (1 << 22)) {
2781 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2782 			    "==> nxge_tdc_sizes: Tx size"
2783 			    " limited to 4M"));
2784 			return (NXGE_ERROR);
2785 		}
2786 
2787 		if (cr_size < 0x2000)
2788 			cr_size = 0x2000;
2789 	}
2790 #endif
2791 
2792 	sizes->threshhold = threshhold;
2793 	sizes->tx_size = tx_size;
2794 	sizes->cr_size = cr_size;
2795 
2796 	return (NXGE_OK);
2797 }
2798 /*
2799  * nxge_alloc_txb
2800  *
2801  *	Allocate buffers for an TDC.
2802  *
2803  * Arguments:
2804  * 	nxgep
2805  * 	channel	The channel to map into our kernel space.
2806  *
2807  * Notes:
2808  *
2809  * NPI function calls:
2810  *
2811  * NXGE function calls:
2812  *
2813  * Registers accessed:
2814  *
2815  * Context:
2816  *
2817  * Taking apart:
2818  *
2819  * Open questions:
2820  *
2821  */
2822 nxge_status_t
2823 nxge_alloc_txb(
2824 	p_nxge_t nxgep,
2825 	int channel)
2826 {
2827 	nxge_dma_common_t	**dma_buf_p;
2828 	nxge_dma_common_t	**dma_cntl_p;
2829 	uint32_t 		*num_chunks;
2830 	nxge_status_t		status = NXGE_OK;
2831 
2832 	nxge_tdc_sizes_t	sizes;
2833 
2834 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tbb"));
2835 
2836 	if (nxge_tdc_sizes(nxgep, &sizes) != NXGE_OK)
2837 		return (NXGE_ERROR);
2838 
2839 	/*
2840 	 * Allocate memory for transmit buffers and descriptor rings.
2841 	 * Replace these allocation functions with the interface functions
2842 	 * provided by the partition manager Real Soon Now.
2843 	 */
2844 	dma_buf_p = &nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2845 	num_chunks = &nxgep->tx_buf_pool_p->num_chunks[channel];
2846 
2847 	dma_cntl_p = &nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2848 
2849 	/*
2850 	 * Allocate memory for transmit buffers and descriptor rings.
2851 	 * Replace allocation functions with interface functions provided
2852 	 * by the partition manager when it is available.
2853 	 *
2854 	 * Allocate memory for the transmit buffer pool.
2855 	 */
2856 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2857 	    "sizes: tx: %ld, cr:%ld, th:%ld",
2858 	    sizes.tx_size, sizes.cr_size, sizes.threshhold));
2859 
2860 	*num_chunks = 0;
2861 	status = nxge_alloc_tx_buf_dma(nxgep, channel, dma_buf_p,
2862 	    sizes.tx_size, sizes.threshhold, num_chunks);
2863 	if (status != NXGE_OK) {
2864 		cmn_err(CE_NOTE, "nxge_alloc_tx_buf_dma failed!");
2865 		return (status);
2866 	}
2867 
2868 	/*
2869 	 * Allocate memory for descriptor rings and mailbox.
2870 	 */
2871 	status = nxge_alloc_tx_cntl_dma(nxgep, channel, dma_cntl_p,
2872 	    sizes.cr_size);
2873 	if (status != NXGE_OK) {
2874 		nxge_free_tx_buf_dma(nxgep, *dma_buf_p, *num_chunks);
2875 		cmn_err(CE_NOTE, "nxge_alloc_tx_cntl_dma failed!");
2876 		return (status);
2877 	}
2878 
2879 	return (NXGE_OK);
2880 }
2881 
2882 void
2883 nxge_free_txb(
2884 	p_nxge_t nxgep,
2885 	int channel)
2886 {
2887 	nxge_dma_common_t	*data;
2888 	nxge_dma_common_t	*control;
2889 	uint32_t 		num_chunks;
2890 
2891 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_txb"));
2892 
2893 	data = nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2894 	num_chunks = nxgep->tx_buf_pool_p->num_chunks[channel];
2895 	nxge_free_tx_buf_dma(nxgep, data, num_chunks);
2896 
2897 	nxgep->tx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2898 	nxgep->tx_buf_pool_p->num_chunks[channel] = 0;
2899 
2900 	control = nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2901 	nxge_free_tx_cntl_dma(nxgep, control);
2902 
2903 	nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2904 
2905 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2906 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2907 
2908 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_txb"));
2909 }
2910 
2911 /*
2912  * nxge_alloc_tx_mem_pool
2913  *
2914  *	This function allocates all of the per-port TDC control data structures.
2915  *	The per-channel (TDC) data structures are allocated when needed.
2916  *
2917  * Arguments:
2918  * 	nxgep
2919  *
2920  * Notes:
2921  *
2922  * Context:
2923  *	Any domain
2924  */
2925 nxge_status_t
2926 nxge_alloc_tx_mem_pool(p_nxge_t nxgep)
2927 {
2928 	nxge_hw_pt_cfg_t	*p_cfgp;
2929 	nxge_dma_pool_t		*dma_poolp;
2930 	nxge_dma_common_t	**dma_buf_p;
2931 	nxge_dma_pool_t		*dma_cntl_poolp;
2932 	nxge_dma_common_t	**dma_cntl_p;
2933 	uint32_t		*num_chunks; /* per dma */
2934 	int			tdc_max;
2935 
2936 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool"));
2937 
2938 	p_cfgp = &nxgep->pt_config.hw_config;
2939 	tdc_max = NXGE_MAX_TDCS;
2940 
2941 	/*
2942 	 * Allocate memory for each transmit DMA channel.
2943 	 */
2944 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2945 	    KM_SLEEP);
2946 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2947 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2948 
2949 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2950 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2951 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2952 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2953 
2954 	if (nxge_tx_ring_size > TDC_DEFAULT_MAX) {
2955 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2956 		    "nxge_alloc_tx_mem_pool: TDC too high %d, "
2957 		    "set to default %d",
2958 		    nxge_tx_ring_size, TDC_DEFAULT_MAX));
2959 		nxge_tx_ring_size = TDC_DEFAULT_MAX;
2960 	}
2961 
2962 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2963 	/*
2964 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2965 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2966 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2967 	 * function). The transmit ring is limited to 8K (includes the
2968 	 * mailbox).
2969 	 */
2970 	if (nxgep->niu_type == N2_NIU) {
2971 		if ((nxge_tx_ring_size > NXGE_NIU_CONTIG_TX_MAX) ||
2972 		    (!ISP2(nxge_tx_ring_size))) {
2973 			nxge_tx_ring_size = NXGE_NIU_CONTIG_TX_MAX;
2974 		}
2975 	}
2976 #endif
2977 
2978 	nxgep->nxge_port_tx_ring_size = nxge_tx_ring_size;
2979 
2980 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2981 	    sizeof (uint32_t) * tdc_max, KM_SLEEP);
2982 
2983 	dma_poolp->ndmas = p_cfgp->tdc.owned;
2984 	dma_poolp->num_chunks = num_chunks;
2985 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2986 	nxgep->tx_buf_pool_p = dma_poolp;
2987 
2988 	dma_poolp->buf_allocated = B_TRUE;
2989 
2990 	dma_cntl_poolp->ndmas = p_cfgp->tdc.owned;
2991 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2992 	nxgep->tx_cntl_pool_p = dma_cntl_poolp;
2993 
2994 	dma_cntl_poolp->buf_allocated = B_TRUE;
2995 
2996 	nxgep->tx_rings =
2997 	    KMEM_ZALLOC(sizeof (tx_rings_t), KM_SLEEP);
2998 	nxgep->tx_rings->rings =
2999 	    KMEM_ZALLOC(sizeof (p_tx_ring_t) * tdc_max, KM_SLEEP);
3000 	nxgep->tx_mbox_areas_p =
3001 	    KMEM_ZALLOC(sizeof (tx_mbox_areas_t), KM_SLEEP);
3002 	nxgep->tx_mbox_areas_p->txmbox_areas_p =
3003 	    KMEM_ZALLOC(sizeof (p_tx_mbox_t) * tdc_max, KM_SLEEP);
3004 
3005 	nxgep->tx_rings->ndmas = p_cfgp->tdc.owned;
3006 
3007 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
3008 	    "==> nxge_alloc_tx_mem_pool: ndmas %d poolp->ndmas %d",
3009 	    tdc_max, dma_poolp->ndmas));
3010 
3011 	return (NXGE_OK);
3012 }
3013 
3014 nxge_status_t
3015 nxge_alloc_tx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
3016     p_nxge_dma_common_t *dmap, size_t alloc_size,
3017     size_t block_size, uint32_t *num_chunks)
3018 {
3019 	p_nxge_dma_common_t 	tx_dmap;
3020 	nxge_status_t		status = NXGE_OK;
3021 	size_t			total_alloc_size;
3022 	size_t			allocated = 0;
3023 	int			i, size_index, array_size;
3024 
3025 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_buf_dma"));
3026 
3027 	tx_dmap = (p_nxge_dma_common_t)
3028 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
3029 	    KM_SLEEP);
3030 
3031 	total_alloc_size = alloc_size;
3032 	i = 0;
3033 	size_index = 0;
3034 	array_size =  sizeof (alloc_sizes) /  sizeof (size_t);
3035 	while ((size_index < array_size) &&
3036 	    (alloc_sizes[size_index] < alloc_size))
3037 		size_index++;
3038 	if (size_index >= array_size) {
3039 		size_index = array_size - 1;
3040 	}
3041 
3042 	while ((allocated < total_alloc_size) &&
3043 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
3044 
3045 		tx_dmap[i].dma_chunk_index = i;
3046 		tx_dmap[i].block_size = block_size;
3047 		tx_dmap[i].alength = alloc_sizes[size_index];
3048 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
3049 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
3050 		tx_dmap[i].dma_channel = dma_channel;
3051 		tx_dmap[i].contig_alloc_type = B_FALSE;
3052 		tx_dmap[i].kmem_alloc_type = B_FALSE;
3053 
3054 		/*
3055 		 * N2/NIU: data buffers must be contiguous as the driver
3056 		 *	   needs to call Hypervisor api to set up
3057 		 *	   logical pages.
3058 		 */
3059 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
3060 			tx_dmap[i].contig_alloc_type = B_TRUE;
3061 		}
3062 
3063 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3064 		    &nxge_tx_dma_attr,
3065 		    tx_dmap[i].alength,
3066 		    &nxge_dev_buf_dma_acc_attr,
3067 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
3068 		    (p_nxge_dma_common_t)(&tx_dmap[i]));
3069 		if (status != NXGE_OK) {
3070 			size_index--;
3071 		} else {
3072 			i++;
3073 			allocated += alloc_sizes[size_index];
3074 		}
3075 	}
3076 
3077 	if (allocated < total_alloc_size) {
3078 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3079 		    "==> nxge_alloc_tx_buf_dma: not enough channel %d: "
3080 		    "allocated 0x%x requested 0x%x",
3081 		    dma_channel,
3082 		    allocated, total_alloc_size));
3083 		status = NXGE_ERROR;
3084 		goto nxge_alloc_tx_mem_fail1;
3085 	}
3086 
3087 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3088 	    "==> nxge_alloc_tx_buf_dma: Allocated for channel %d: "
3089 	    "allocated 0x%x requested 0x%x",
3090 	    dma_channel,
3091 	    allocated, total_alloc_size));
3092 
3093 	*num_chunks = i;
3094 	*dmap = tx_dmap;
3095 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3096 	    "==> nxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
3097 	    *dmap, i));
3098 	goto nxge_alloc_tx_mem_exit;
3099 
3100 nxge_alloc_tx_mem_fail1:
3101 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
3102 
3103 nxge_alloc_tx_mem_exit:
3104 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3105 	    "<== nxge_alloc_tx_buf_dma status 0x%08x", status));
3106 
3107 	return (status);
3108 }
3109 
3110 /*ARGSUSED*/
3111 static void
3112 nxge_free_tx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
3113     uint32_t num_chunks)
3114 {
3115 	int		i;
3116 
3117 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_tx_buf_dma"));
3118 
3119 	if (dmap == 0)
3120 		return;
3121 
3122 	for (i = 0; i < num_chunks; i++) {
3123 		nxge_dma_mem_free(dmap++);
3124 	}
3125 
3126 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_tx_buf_dma"));
3127 }
3128 
3129 /*ARGSUSED*/
3130 nxge_status_t
3131 nxge_alloc_tx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
3132     p_nxge_dma_common_t *dmap, size_t size)
3133 {
3134 	p_nxge_dma_common_t 	tx_dmap;
3135 	nxge_status_t		status = NXGE_OK;
3136 
3137 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_cntl_dma"));
3138 	tx_dmap = (p_nxge_dma_common_t)
3139 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
3140 
3141 	tx_dmap->contig_alloc_type = B_FALSE;
3142 	tx_dmap->kmem_alloc_type = B_FALSE;
3143 
3144 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3145 	    &nxge_desc_dma_attr,
3146 	    size,
3147 	    &nxge_dev_desc_dma_acc_attr,
3148 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
3149 	    tx_dmap);
3150 	if (status != NXGE_OK) {
3151 		goto nxge_alloc_tx_cntl_dma_fail1;
3152 	}
3153 
3154 	*dmap = tx_dmap;
3155 	goto nxge_alloc_tx_cntl_dma_exit;
3156 
3157 nxge_alloc_tx_cntl_dma_fail1:
3158 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t));
3159 
3160 nxge_alloc_tx_cntl_dma_exit:
3161 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3162 	    "<== nxge_alloc_tx_cntl_dma status 0x%08x", status));
3163 
3164 	return (status);
3165 }
3166 
3167 /*ARGSUSED*/
3168 static void
3169 nxge_free_tx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
3170 {
3171 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_tx_cntl_dma"));
3172 
3173 	if (dmap == 0)
3174 		return;
3175 
3176 	nxge_dma_mem_free(dmap);
3177 
3178 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_tx_cntl_dma"));
3179 }
3180 
3181 /*
3182  * nxge_free_tx_mem_pool
3183  *
3184  *	This function frees all of the per-port TDC control data structures.
3185  *	The per-channel (TDC) data structures are freed when the channel
3186  *	is stopped.
3187  *
3188  * Arguments:
3189  * 	nxgep
3190  *
3191  * Notes:
3192  *
3193  * Context:
3194  *	Any domain
3195  */
3196 static void
3197 nxge_free_tx_mem_pool(p_nxge_t nxgep)
3198 {
3199 	int tdc_max = NXGE_MAX_TDCS;
3200 
3201 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_tx_mem_pool"));
3202 
3203 	if (!nxgep->tx_buf_pool_p || !nxgep->tx_buf_pool_p->buf_allocated) {
3204 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3205 		    "<== nxge_free_tx_mem_pool "
3206 		    "(null tx buf pool or buf not allocated"));
3207 		return;
3208 	}
3209 	if (!nxgep->tx_cntl_pool_p || !nxgep->tx_cntl_pool_p->buf_allocated) {
3210 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3211 		    "<== nxge_free_tx_mem_pool "
3212 		    "(null tx cntl buf pool or cntl buf not allocated"));
3213 		return;
3214 	}
3215 
3216 	/* 1. Free the mailboxes. */
3217 	KMEM_FREE(nxgep->tx_mbox_areas_p->txmbox_areas_p,
3218 	    sizeof (p_tx_mbox_t) * tdc_max);
3219 	KMEM_FREE(nxgep->tx_mbox_areas_p, sizeof (tx_mbox_areas_t));
3220 
3221 	nxgep->tx_mbox_areas_p = 0;
3222 
3223 	/* 2. Free the transmit ring arrays. */
3224 	KMEM_FREE(nxgep->tx_rings->rings,
3225 	    sizeof (p_tx_ring_t) * tdc_max);
3226 	KMEM_FREE(nxgep->tx_rings, sizeof (tx_rings_t));
3227 
3228 	nxgep->tx_rings = 0;
3229 
3230 	/* 3. Free the completion ring data structures. */
3231 	KMEM_FREE(nxgep->tx_cntl_pool_p->dma_buf_pool_p,
3232 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3233 	KMEM_FREE(nxgep->tx_cntl_pool_p, sizeof (nxge_dma_pool_t));
3234 
3235 	nxgep->tx_cntl_pool_p = 0;
3236 
3237 	/* 4. Free the data ring data structures. */
3238 	KMEM_FREE(nxgep->tx_buf_pool_p->num_chunks,
3239 	    sizeof (uint32_t) * tdc_max);
3240 	KMEM_FREE(nxgep->tx_buf_pool_p->dma_buf_pool_p,
3241 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3242 	KMEM_FREE(nxgep->tx_buf_pool_p, sizeof (nxge_dma_pool_t));
3243 
3244 	nxgep->tx_buf_pool_p = 0;
3245 
3246 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_tx_mem_pool"));
3247 }
3248 
3249 /*ARGSUSED*/
3250 static nxge_status_t
3251 nxge_dma_mem_alloc(p_nxge_t nxgep, dma_method_t method,
3252 	struct ddi_dma_attr *dma_attrp,
3253 	size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
3254 	p_nxge_dma_common_t dma_p)
3255 {
3256 	caddr_t 		kaddrp;
3257 	int			ddi_status = DDI_SUCCESS;
3258 	boolean_t		contig_alloc_type;
3259 	boolean_t		kmem_alloc_type;
3260 
3261 	contig_alloc_type = dma_p->contig_alloc_type;
3262 
3263 	if (contig_alloc_type && (nxgep->niu_type != N2_NIU)) {
3264 		/*
3265 		 * contig_alloc_type for contiguous memory only allowed
3266 		 * for N2/NIU.
3267 		 */
3268 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3269 		    "nxge_dma_mem_alloc: alloc type not allowed (%d)",
3270 		    dma_p->contig_alloc_type));
3271 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3272 	}
3273 
3274 	dma_p->dma_handle = NULL;
3275 	dma_p->acc_handle = NULL;
3276 	dma_p->kaddrp = dma_p->last_kaddrp = NULL;
3277 	dma_p->first_ioaddr_pp = dma_p->last_ioaddr_pp = NULL;
3278 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, dma_attrp,
3279 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
3280 	if (ddi_status != DDI_SUCCESS) {
3281 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3282 		    "nxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
3283 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3284 	}
3285 
3286 	kmem_alloc_type = dma_p->kmem_alloc_type;
3287 
3288 	switch (contig_alloc_type) {
3289 	case B_FALSE:
3290 		switch (kmem_alloc_type) {
3291 		case B_FALSE:
3292 			ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle,
3293 			    length,
3294 			    acc_attr_p,
3295 			    xfer_flags,
3296 			    DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
3297 			    &dma_p->acc_handle);
3298 			if (ddi_status != DDI_SUCCESS) {
3299 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3300 				    "nxge_dma_mem_alloc: "
3301 				    "ddi_dma_mem_alloc failed"));
3302 				ddi_dma_free_handle(&dma_p->dma_handle);
3303 				dma_p->dma_handle = NULL;
3304 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3305 			}
3306 			if (dma_p->alength < length) {
3307 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3308 				    "nxge_dma_mem_alloc:di_dma_mem_alloc "
3309 				    "< length."));
3310 				ddi_dma_mem_free(&dma_p->acc_handle);
3311 				ddi_dma_free_handle(&dma_p->dma_handle);
3312 				dma_p->acc_handle = NULL;
3313 				dma_p->dma_handle = NULL;
3314 				return (NXGE_ERROR);
3315 			}
3316 
3317 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3318 			    NULL,
3319 			    kaddrp, dma_p->alength, xfer_flags,
3320 			    DDI_DMA_DONTWAIT,
3321 			    0, &dma_p->dma_cookie, &dma_p->ncookies);
3322 			if (ddi_status != DDI_DMA_MAPPED) {
3323 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3324 				    "nxge_dma_mem_alloc: ddi_dma_addr_bind "
3325 				    "failed "
3326 				    "(staus 0x%x ncookies %d.)", ddi_status,
3327 				    dma_p->ncookies));
3328 				if (dma_p->acc_handle) {
3329 					ddi_dma_mem_free(&dma_p->acc_handle);
3330 					dma_p->acc_handle = NULL;
3331 				}
3332 				ddi_dma_free_handle(&dma_p->dma_handle);
3333 				dma_p->dma_handle = NULL;
3334 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3335 			}
3336 
3337 			if (dma_p->ncookies != 1) {
3338 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3339 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3340 				    "> 1 cookie"
3341 				    "(staus 0x%x ncookies %d.)", ddi_status,
3342 				    dma_p->ncookies));
3343 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3344 				if (dma_p->acc_handle) {
3345 					ddi_dma_mem_free(&dma_p->acc_handle);
3346 					dma_p->acc_handle = NULL;
3347 				}
3348 				ddi_dma_free_handle(&dma_p->dma_handle);
3349 				dma_p->dma_handle = NULL;
3350 				dma_p->acc_handle = NULL;
3351 				return (NXGE_ERROR);
3352 			}
3353 			break;
3354 
3355 		case B_TRUE:
3356 			kaddrp = KMEM_ALLOC(length, KM_NOSLEEP);
3357 			if (kaddrp == NULL) {
3358 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3359 				    "nxge_dma_mem_alloc:ddi_dma_mem_alloc "
3360 				    "kmem alloc failed"));
3361 				return (NXGE_ERROR);
3362 			}
3363 
3364 			dma_p->alength = length;
3365 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3366 			    NULL, kaddrp, dma_p->alength, xfer_flags,
3367 			    DDI_DMA_DONTWAIT, 0,
3368 			    &dma_p->dma_cookie, &dma_p->ncookies);
3369 			if (ddi_status != DDI_DMA_MAPPED) {
3370 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3371 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind: "
3372 				    "(kmem_alloc) failed kaddrp $%p length %d "
3373 				    "(staus 0x%x (%d) ncookies %d.)",
3374 				    kaddrp, length,
3375 				    ddi_status, ddi_status, dma_p->ncookies));
3376 				KMEM_FREE(kaddrp, length);
3377 				dma_p->acc_handle = NULL;
3378 				ddi_dma_free_handle(&dma_p->dma_handle);
3379 				dma_p->dma_handle = NULL;
3380 				dma_p->kaddrp = NULL;
3381 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3382 			}
3383 
3384 			if (dma_p->ncookies != 1) {
3385 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3386 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3387 				    "(kmem_alloc) > 1 cookie"
3388 				    "(staus 0x%x ncookies %d.)", ddi_status,
3389 				    dma_p->ncookies));
3390 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3391 				KMEM_FREE(kaddrp, length);
3392 				ddi_dma_free_handle(&dma_p->dma_handle);
3393 				dma_p->dma_handle = NULL;
3394 				dma_p->acc_handle = NULL;
3395 				dma_p->kaddrp = NULL;
3396 				return (NXGE_ERROR);
3397 			}
3398 
3399 			dma_p->kaddrp = kaddrp;
3400 
3401 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
3402 			    "nxge_dma_mem_alloc: kmem_alloc dmap $%p "
3403 			    "kaddr $%p alength %d",
3404 			    dma_p,
3405 			    kaddrp,
3406 			    dma_p->alength));
3407 			break;
3408 		}
3409 		break;
3410 
3411 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3412 	case B_TRUE:
3413 		kaddrp = (caddr_t)contig_mem_alloc(length);
3414 		if (kaddrp == NULL) {
3415 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3416 			    "nxge_dma_mem_alloc:contig_mem_alloc failed."));
3417 			ddi_dma_free_handle(&dma_p->dma_handle);
3418 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3419 		}
3420 
3421 		dma_p->alength = length;
3422 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
3423 		    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
3424 		    &dma_p->dma_cookie, &dma_p->ncookies);
3425 		if (ddi_status != DDI_DMA_MAPPED) {
3426 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3427 			    "nxge_dma_mem_alloc:di_dma_addr_bind failed "
3428 			    "(status 0x%x ncookies %d.)", ddi_status,
3429 			    dma_p->ncookies));
3430 
3431 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3432 			    "==> nxge_dma_mem_alloc: (not mapped)"
3433 			    "length %lu (0x%x) "
3434 			    "free contig kaddrp $%p "
3435 			    "va_to_pa $%p",
3436 			    length, length,
3437 			    kaddrp,
3438 			    va_to_pa(kaddrp)));
3439 
3440 
3441 			contig_mem_free((void *)kaddrp, length);
3442 			ddi_dma_free_handle(&dma_p->dma_handle);
3443 
3444 			dma_p->dma_handle = NULL;
3445 			dma_p->acc_handle = NULL;
3446 			dma_p->alength = NULL;
3447 			dma_p->kaddrp = NULL;
3448 
3449 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3450 		}
3451 
3452 		if (dma_p->ncookies != 1 ||
3453 		    (dma_p->dma_cookie.dmac_laddress == NULL)) {
3454 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3455 			    "nxge_dma_mem_alloc:di_dma_addr_bind > 1 "
3456 			    "cookie or "
3457 			    "dmac_laddress is NULL $%p size %d "
3458 			    " (status 0x%x ncookies %d.)",
3459 			    ddi_status,
3460 			    dma_p->dma_cookie.dmac_laddress,
3461 			    dma_p->dma_cookie.dmac_size,
3462 			    dma_p->ncookies));
3463 
3464 			contig_mem_free((void *)kaddrp, length);
3465 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3466 			ddi_dma_free_handle(&dma_p->dma_handle);
3467 
3468 			dma_p->alength = 0;
3469 			dma_p->dma_handle = NULL;
3470 			dma_p->acc_handle = NULL;
3471 			dma_p->kaddrp = NULL;
3472 
3473 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3474 		}
3475 		break;
3476 
3477 #else
3478 	case B_TRUE:
3479 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3480 		    "nxge_dma_mem_alloc: invalid alloc type for !sun4v"));
3481 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3482 #endif
3483 	}
3484 
3485 	dma_p->kaddrp = kaddrp;
3486 	dma_p->last_kaddrp = (unsigned char *)kaddrp +
3487 	    dma_p->alength - RXBUF_64B_ALIGNED;
3488 #if defined(__i386)
3489 	dma_p->ioaddr_pp =
3490 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
3491 #else
3492 	dma_p->ioaddr_pp = (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3493 #endif
3494 	dma_p->last_ioaddr_pp =
3495 #if defined(__i386)
3496 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress +
3497 #else
3498 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress +
3499 #endif
3500 	    dma_p->alength - RXBUF_64B_ALIGNED;
3501 
3502 	NPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
3503 
3504 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3505 	dma_p->orig_ioaddr_pp =
3506 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3507 	dma_p->orig_alength = length;
3508 	dma_p->orig_kaddrp = kaddrp;
3509 	dma_p->orig_vatopa = (uint64_t)va_to_pa(kaddrp);
3510 #endif
3511 
3512 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_dma_mem_alloc: "
3513 	    "dma buffer allocated: dma_p $%p "
3514 	    "return dmac_ladress from cookie $%p cookie dmac_size %d "
3515 	    "dma_p->ioaddr_p $%p "
3516 	    "dma_p->orig_ioaddr_p $%p "
3517 	    "orig_vatopa $%p "
3518 	    "alength %d (0x%x) "
3519 	    "kaddrp $%p "
3520 	    "length %d (0x%x)",
3521 	    dma_p,
3522 	    dma_p->dma_cookie.dmac_laddress, dma_p->dma_cookie.dmac_size,
3523 	    dma_p->ioaddr_pp,
3524 	    dma_p->orig_ioaddr_pp,
3525 	    dma_p->orig_vatopa,
3526 	    dma_p->alength, dma_p->alength,
3527 	    kaddrp,
3528 	    length, length));
3529 
3530 	return (NXGE_OK);
3531 }
3532 
3533 static void
3534 nxge_dma_mem_free(p_nxge_dma_common_t dma_p)
3535 {
3536 	if (dma_p->dma_handle != NULL) {
3537 		if (dma_p->ncookies) {
3538 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3539 			dma_p->ncookies = 0;
3540 		}
3541 		ddi_dma_free_handle(&dma_p->dma_handle);
3542 		dma_p->dma_handle = NULL;
3543 	}
3544 
3545 	if (dma_p->acc_handle != NULL) {
3546 		ddi_dma_mem_free(&dma_p->acc_handle);
3547 		dma_p->acc_handle = NULL;
3548 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3549 	}
3550 
3551 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3552 	if (dma_p->contig_alloc_type &&
3553 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3554 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_mem_free: "
3555 		    "kaddrp $%p (orig_kaddrp $%p)"
3556 		    "mem type %d ",
3557 		    "orig_alength %d "
3558 		    "alength 0x%x (%d)",
3559 		    dma_p->kaddrp,
3560 		    dma_p->orig_kaddrp,
3561 		    dma_p->contig_alloc_type,
3562 		    dma_p->orig_alength,
3563 		    dma_p->alength, dma_p->alength));
3564 
3565 		contig_mem_free(dma_p->orig_kaddrp, dma_p->orig_alength);
3566 		dma_p->orig_alength = NULL;
3567 		dma_p->orig_kaddrp = NULL;
3568 		dma_p->contig_alloc_type = B_FALSE;
3569 	}
3570 #endif
3571 	dma_p->kaddrp = NULL;
3572 	dma_p->alength = NULL;
3573 }
3574 
3575 static void
3576 nxge_dma_free_rx_data_buf(p_nxge_dma_common_t dma_p)
3577 {
3578 	uint64_t kaddr;
3579 	uint32_t buf_size;
3580 
3581 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "==> nxge_dma_free_rx_data_buf"));
3582 
3583 	if (dma_p->dma_handle != NULL) {
3584 		if (dma_p->ncookies) {
3585 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3586 			dma_p->ncookies = 0;
3587 		}
3588 		ddi_dma_free_handle(&dma_p->dma_handle);
3589 		dma_p->dma_handle = NULL;
3590 	}
3591 
3592 	if (dma_p->acc_handle != NULL) {
3593 		ddi_dma_mem_free(&dma_p->acc_handle);
3594 		dma_p->acc_handle = NULL;
3595 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3596 	}
3597 
3598 	NXGE_DEBUG_MSG((NULL, DMA_CTL,
3599 	    "==> nxge_dma_free_rx_data_buf: dmap $%p buf_alloc_state %d",
3600 	    dma_p,
3601 	    dma_p->buf_alloc_state));
3602 
3603 	if (!(dma_p->buf_alloc_state & BUF_ALLOCATED_WAIT_FREE)) {
3604 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3605 		    "<== nxge_dma_free_rx_data_buf: "
3606 		    "outstanding data buffers"));
3607 		return;
3608 	}
3609 
3610 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3611 	if (dma_p->contig_alloc_type &&
3612 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3613 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_free_rx_data_buf: "
3614 		    "kaddrp $%p (orig_kaddrp $%p)"
3615 		    "mem type %d ",
3616 		    "orig_alength %d "
3617 		    "alength 0x%x (%d)",
3618 		    dma_p->kaddrp,
3619 		    dma_p->orig_kaddrp,
3620 		    dma_p->contig_alloc_type,
3621 		    dma_p->orig_alength,
3622 		    dma_p->alength, dma_p->alength));
3623 
3624 		kaddr = (uint64_t)dma_p->orig_kaddrp;
3625 		buf_size = dma_p->orig_alength;
3626 		nxge_free_buf(CONTIG_MEM_ALLOC, kaddr, buf_size);
3627 		dma_p->orig_alength = NULL;
3628 		dma_p->orig_kaddrp = NULL;
3629 		dma_p->contig_alloc_type = B_FALSE;
3630 		dma_p->kaddrp = NULL;
3631 		dma_p->alength = NULL;
3632 		return;
3633 	}
3634 #endif
3635 
3636 	if (dma_p->kmem_alloc_type) {
3637 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3638 		    "nxge_dma_free_rx_data_buf: free kmem "
3639 		    "kaddrp $%p (orig_kaddrp $%p)"
3640 		    "alloc type %d "
3641 		    "orig_alength %d "
3642 		    "alength 0x%x (%d)",
3643 		    dma_p->kaddrp,
3644 		    dma_p->orig_kaddrp,
3645 		    dma_p->kmem_alloc_type,
3646 		    dma_p->orig_alength,
3647 		    dma_p->alength, dma_p->alength));
3648 #if defined(__i386)
3649 		kaddr = (uint64_t)(uint32_t)dma_p->kaddrp;
3650 #else
3651 		kaddr = (uint64_t)dma_p->kaddrp;
3652 #endif
3653 		buf_size = dma_p->orig_alength;
3654 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3655 		    "nxge_dma_free_rx_data_buf: free dmap $%p "
3656 		    "kaddr $%p buf_size %d",
3657 		    dma_p,
3658 		    kaddr, buf_size));
3659 		nxge_free_buf(KMEM_ALLOC, kaddr, buf_size);
3660 		dma_p->alength = 0;
3661 		dma_p->orig_alength = 0;
3662 		dma_p->kaddrp = NULL;
3663 		dma_p->kmem_alloc_type = B_FALSE;
3664 	}
3665 
3666 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "<== nxge_dma_free_rx_data_buf"));
3667 }
3668 
3669 /*
3670  *	nxge_m_start() -- start transmitting and receiving.
3671  *
3672  *	This function is called by the MAC layer when the first
3673  *	stream is open to prepare the hardware ready for sending
3674  *	and transmitting packets.
3675  */
3676 static int
3677 nxge_m_start(void *arg)
3678 {
3679 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3680 
3681 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_start"));
3682 
3683 	/*
3684 	 * Are we already started?
3685 	 */
3686 	if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
3687 		return (0);
3688 	}
3689 
3690 	if (nxge_peu_reset_enable && !nxgep->nxge_link_poll_timerid) {
3691 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
3692 	}
3693 
3694 	/*
3695 	 * Make sure RX MAC is disabled while we initialize.
3696 	 */
3697 	if (!isLDOMguest(nxgep)) {
3698 		(void) nxge_rx_mac_disable(nxgep);
3699 	}
3700 
3701 	/*
3702 	 * Grab the global lock.
3703 	 */
3704 	MUTEX_ENTER(nxgep->genlock);
3705 
3706 	/*
3707 	 * Initialize the driver and hardware.
3708 	 */
3709 	if (nxge_init(nxgep) != NXGE_OK) {
3710 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3711 		    "<== nxge_m_start: initialization failed"));
3712 		MUTEX_EXIT(nxgep->genlock);
3713 		return (EIO);
3714 	}
3715 
3716 	/*
3717 	 * Start timer to check the system error and tx hangs
3718 	 */
3719 	if (!isLDOMguest(nxgep))
3720 		nxgep->nxge_timerid = nxge_start_timer(nxgep,
3721 		    nxge_check_hw_state, NXGE_CHECK_TIMER);
3722 #if defined(sun4v)
3723 	else
3724 		nxge_hio_start_timer(nxgep);
3725 #endif
3726 
3727 	nxgep->link_notify = B_TRUE;
3728 	nxgep->nxge_mac_state = NXGE_MAC_STARTED;
3729 
3730 	/*
3731 	 * Let the global lock go, since we are intialized.
3732 	 */
3733 	MUTEX_EXIT(nxgep->genlock);
3734 
3735 	/*
3736 	 * Let the MAC start receiving packets, now that
3737 	 * we are initialized.
3738 	 */
3739 	if (!isLDOMguest(nxgep)) {
3740 		if (nxge_rx_mac_enable(nxgep) != NXGE_OK) {
3741 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3742 			    "<== nxge_m_start: enable of RX mac failed"));
3743 			return (EIO);
3744 		}
3745 
3746 		/*
3747 		 * Enable hardware interrupts.
3748 		 */
3749 		nxge_intr_hw_enable(nxgep);
3750 	}
3751 #if defined(sun4v)
3752 	else {
3753 		/*
3754 		 * In guest domain we enable RDCs and their interrupts as
3755 		 * the last step.
3756 		 */
3757 		if (nxge_hio_rdc_enable(nxgep) != NXGE_OK) {
3758 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3759 			    "<== nxge_m_start: enable of RDCs failed"));
3760 			return (EIO);
3761 		}
3762 
3763 		if (nxge_hio_rdc_intr_arm(nxgep, B_TRUE) != NXGE_OK) {
3764 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3765 			    "<== nxge_m_start: intrs enable for RDCs failed"));
3766 			return (EIO);
3767 		}
3768 	}
3769 #endif
3770 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_start"));
3771 	return (0);
3772 }
3773 
3774 static boolean_t
3775 nxge_check_groups_stopped(p_nxge_t nxgep)
3776 {
3777 	int	i;
3778 
3779 	for (i = 0; i < NXGE_MAX_RDC_GROUPS; i++) {
3780 		if (nxgep->rx_hio_groups[i].started)
3781 			return (B_FALSE);
3782 	}
3783 
3784 	return (B_TRUE);
3785 }
3786 
3787 /*
3788  *	nxge_m_stop(): stop transmitting and receiving.
3789  */
3790 static void
3791 nxge_m_stop(void *arg)
3792 {
3793 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3794 	boolean_t	groups_stopped;
3795 
3796 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_stop"));
3797 
3798 	/*
3799 	 * Are the groups stopped?
3800 	 */
3801 	groups_stopped = nxge_check_groups_stopped(nxgep);
3802 	ASSERT(groups_stopped == B_TRUE);
3803 	if (!groups_stopped) {
3804 		cmn_err(CE_WARN, "nxge(%d): groups are not stopped!\n",
3805 		    nxgep->instance);
3806 		return;
3807 	}
3808 
3809 	if (!isLDOMguest(nxgep)) {
3810 		/*
3811 		 * Disable the RX mac.
3812 		 */
3813 		(void) nxge_rx_mac_disable(nxgep);
3814 
3815 		/*
3816 		 * Wait for the IPP to drain.
3817 		 */
3818 		(void) nxge_ipp_drain(nxgep);
3819 
3820 		/*
3821 		 * Disable hardware interrupts.
3822 		 */
3823 		nxge_intr_hw_disable(nxgep);
3824 	}
3825 #if defined(sun4v)
3826 	else {
3827 		(void) nxge_hio_rdc_intr_arm(nxgep, B_FALSE);
3828 	}
3829 #endif
3830 
3831 	/*
3832 	 * Grab the global lock.
3833 	 */
3834 	MUTEX_ENTER(nxgep->genlock);
3835 
3836 	nxgep->nxge_mac_state = NXGE_MAC_STOPPING;
3837 	if (nxgep->nxge_timerid) {
3838 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
3839 		nxgep->nxge_timerid = 0;
3840 	}
3841 
3842 	/*
3843 	 * Clean up.
3844 	 */
3845 	nxge_uninit(nxgep);
3846 
3847 	nxgep->nxge_mac_state = NXGE_MAC_STOPPED;
3848 
3849 	/*
3850 	 * Let go of the global lock.
3851 	 */
3852 	MUTEX_EXIT(nxgep->genlock);
3853 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_stop"));
3854 }
3855 
3856 static int
3857 nxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
3858 {
3859 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3860 	struct 		ether_addr addrp;
3861 
3862 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3863 	    "==> nxge_m_multicst: add %d", add));
3864 
3865 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
3866 	if (add) {
3867 		if (nxge_add_mcast_addr(nxgep, &addrp)) {
3868 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3869 			    "<== nxge_m_multicst: add multicast failed"));
3870 			return (EINVAL);
3871 		}
3872 	} else {
3873 		if (nxge_del_mcast_addr(nxgep, &addrp)) {
3874 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3875 			    "<== nxge_m_multicst: del multicast failed"));
3876 			return (EINVAL);
3877 		}
3878 	}
3879 
3880 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_multicst"));
3881 
3882 	return (0);
3883 }
3884 
3885 static int
3886 nxge_m_promisc(void *arg, boolean_t on)
3887 {
3888 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3889 
3890 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3891 	    "==> nxge_m_promisc: on %d", on));
3892 
3893 	if (nxge_set_promisc(nxgep, on)) {
3894 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3895 		    "<== nxge_m_promisc: set promisc failed"));
3896 		return (EINVAL);
3897 	}
3898 
3899 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3900 	    "<== nxge_m_promisc: on %d", on));
3901 
3902 	return (0);
3903 }
3904 
3905 static void
3906 nxge_m_ioctl(void *arg,  queue_t *wq, mblk_t *mp)
3907 {
3908 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3909 	struct 		iocblk *iocp;
3910 	boolean_t 	need_privilege;
3911 	int 		err;
3912 	int 		cmd;
3913 
3914 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl"));
3915 
3916 	iocp = (struct iocblk *)mp->b_rptr;
3917 	iocp->ioc_error = 0;
3918 	need_privilege = B_TRUE;
3919 	cmd = iocp->ioc_cmd;
3920 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl: cmd 0x%08x", cmd));
3921 	switch (cmd) {
3922 	default:
3923 		miocnak(wq, mp, 0, EINVAL);
3924 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl: invalid"));
3925 		return;
3926 
3927 	case LB_GET_INFO_SIZE:
3928 	case LB_GET_INFO:
3929 	case LB_GET_MODE:
3930 		need_privilege = B_FALSE;
3931 		break;
3932 	case LB_SET_MODE:
3933 		break;
3934 
3935 
3936 	case NXGE_GET_MII:
3937 	case NXGE_PUT_MII:
3938 	case NXGE_GET64:
3939 	case NXGE_PUT64:
3940 	case NXGE_GET_TX_RING_SZ:
3941 	case NXGE_GET_TX_DESC:
3942 	case NXGE_TX_SIDE_RESET:
3943 	case NXGE_RX_SIDE_RESET:
3944 	case NXGE_GLOBAL_RESET:
3945 	case NXGE_RESET_MAC:
3946 	case NXGE_TX_REGS_DUMP:
3947 	case NXGE_RX_REGS_DUMP:
3948 	case NXGE_INT_REGS_DUMP:
3949 	case NXGE_VIR_INT_REGS_DUMP:
3950 	case NXGE_PUT_TCAM:
3951 	case NXGE_GET_TCAM:
3952 	case NXGE_RTRACE:
3953 	case NXGE_RDUMP:
3954 
3955 		need_privilege = B_FALSE;
3956 		break;
3957 	case NXGE_INJECT_ERR:
3958 		cmn_err(CE_NOTE, "!nxge_m_ioctl: Inject error\n");
3959 		nxge_err_inject(nxgep, wq, mp);
3960 		break;
3961 	}
3962 
3963 	if (need_privilege) {
3964 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
3965 		if (err != 0) {
3966 			miocnak(wq, mp, 0, err);
3967 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3968 			    "<== nxge_m_ioctl: no priv"));
3969 			return;
3970 		}
3971 	}
3972 
3973 	switch (cmd) {
3974 
3975 	case LB_GET_MODE:
3976 	case LB_SET_MODE:
3977 	case LB_GET_INFO_SIZE:
3978 	case LB_GET_INFO:
3979 		nxge_loopback_ioctl(nxgep, wq, mp, iocp);
3980 		break;
3981 
3982 	case NXGE_GET_MII:
3983 	case NXGE_PUT_MII:
3984 	case NXGE_PUT_TCAM:
3985 	case NXGE_GET_TCAM:
3986 	case NXGE_GET64:
3987 	case NXGE_PUT64:
3988 	case NXGE_GET_TX_RING_SZ:
3989 	case NXGE_GET_TX_DESC:
3990 	case NXGE_TX_SIDE_RESET:
3991 	case NXGE_RX_SIDE_RESET:
3992 	case NXGE_GLOBAL_RESET:
3993 	case NXGE_RESET_MAC:
3994 	case NXGE_TX_REGS_DUMP:
3995 	case NXGE_RX_REGS_DUMP:
3996 	case NXGE_INT_REGS_DUMP:
3997 	case NXGE_VIR_INT_REGS_DUMP:
3998 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
3999 		    "==> nxge_m_ioctl: cmd 0x%x", cmd));
4000 		nxge_hw_ioctl(nxgep, wq, mp, iocp);
4001 		break;
4002 	}
4003 
4004 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl"));
4005 }
4006 
4007 extern void nxge_rx_hw_blank(void *arg, time_t ticks, uint_t count);
4008 
4009 void
4010 nxge_mmac_kstat_update(p_nxge_t nxgep, int slot, boolean_t factory)
4011 {
4012 	p_nxge_mmac_stats_t mmac_stats;
4013 	int i;
4014 	nxge_mmac_t *mmac_info;
4015 
4016 	mmac_info = &nxgep->nxge_mmac_info;
4017 
4018 	mmac_stats = &nxgep->statsp->mmac_stats;
4019 	mmac_stats->mmac_max_cnt = mmac_info->num_mmac;
4020 	mmac_stats->mmac_avail_cnt = mmac_info->naddrfree;
4021 
4022 	for (i = 0; i < ETHERADDRL; i++) {
4023 		if (factory) {
4024 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
4025 			    = mmac_info->factory_mac_pool[slot][
4026 			    (ETHERADDRL-1) - i];
4027 		} else {
4028 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
4029 			    = mmac_info->mac_pool[slot].addr[
4030 			    (ETHERADDRL - 1) - i];
4031 		}
4032 	}
4033 }
4034 
4035 /*
4036  * nxge_altmac_set() -- Set an alternate MAC address
4037  */
4038 static int
4039 nxge_altmac_set(p_nxge_t nxgep, uint8_t *maddr, int slot,
4040 	int rdctbl, boolean_t usetbl)
4041 {
4042 	uint8_t addrn;
4043 	uint8_t portn;
4044 	npi_mac_addr_t altmac;
4045 	hostinfo_t mac_rdc;
4046 	p_nxge_class_pt_cfg_t clscfgp;
4047 
4048 
4049 	altmac.w2 = ((uint16_t)maddr[0] << 8) | ((uint16_t)maddr[1] & 0x0ff);
4050 	altmac.w1 = ((uint16_t)maddr[2] << 8) | ((uint16_t)maddr[3] & 0x0ff);
4051 	altmac.w0 = ((uint16_t)maddr[4] << 8) | ((uint16_t)maddr[5] & 0x0ff);
4052 
4053 	portn = nxgep->mac.portnum;
4054 	addrn = (uint8_t)slot - 1;
4055 
4056 	if (npi_mac_altaddr_entry(nxgep->npi_handle, OP_SET,
4057 	    nxgep->function_num, addrn, &altmac) != NPI_SUCCESS)
4058 		return (EIO);
4059 
4060 	/*
4061 	 * Set the rdc table number for the host info entry
4062 	 * for this mac address slot.
4063 	 */
4064 	clscfgp = (p_nxge_class_pt_cfg_t)&nxgep->class_config;
4065 	mac_rdc.value = 0;
4066 	if (usetbl)
4067 		mac_rdc.bits.w0.rdc_tbl_num = rdctbl;
4068 	else
4069 		mac_rdc.bits.w0.rdc_tbl_num =
4070 		    clscfgp->mac_host_info[addrn].rdctbl;
4071 	mac_rdc.bits.w0.mac_pref = clscfgp->mac_host_info[addrn].mpr_npr;
4072 
4073 	if (npi_mac_hostinfo_entry(nxgep->npi_handle, OP_SET,
4074 	    nxgep->function_num, addrn, &mac_rdc) != NPI_SUCCESS) {
4075 		return (EIO);
4076 	}
4077 
4078 	/*
4079 	 * Enable comparison with the alternate MAC address.
4080 	 * While the first alternate addr is enabled by bit 1 of register
4081 	 * BMAC_ALTAD_CMPEN, it is enabled by bit 0 of register
4082 	 * XMAC_ADDR_CMPEN, so slot needs to be converted to addrn
4083 	 * accordingly before calling npi_mac_altaddr_entry.
4084 	 */
4085 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4086 		addrn = (uint8_t)slot - 1;
4087 	else
4088 		addrn = (uint8_t)slot;
4089 
4090 	if (npi_mac_altaddr_enable(nxgep->npi_handle,
4091 	    nxgep->function_num, addrn) != NPI_SUCCESS) {
4092 		return (EIO);
4093 	}
4094 
4095 	return (0);
4096 }
4097 
4098 /*
4099  * nxeg_m_mmac_add_g() - find an unused address slot, set the address
4100  * value to the one specified, enable the port to start filtering on
4101  * the new MAC address.  Returns 0 on success.
4102  */
4103 int
4104 nxge_m_mmac_add_g(void *arg, const uint8_t *maddr, int rdctbl,
4105 	boolean_t usetbl)
4106 {
4107 	p_nxge_t nxgep = arg;
4108 	int slot;
4109 	nxge_mmac_t *mmac_info;
4110 	int err;
4111 	nxge_status_t status;
4112 
4113 	mutex_enter(nxgep->genlock);
4114 
4115 	/*
4116 	 * Make sure that nxge is initialized, if _start() has
4117 	 * not been called.
4118 	 */
4119 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4120 		status = nxge_init(nxgep);
4121 		if (status != NXGE_OK) {
4122 			mutex_exit(nxgep->genlock);
4123 			return (ENXIO);
4124 		}
4125 	}
4126 
4127 	mmac_info = &nxgep->nxge_mmac_info;
4128 	if (mmac_info->naddrfree == 0) {
4129 		mutex_exit(nxgep->genlock);
4130 		return (ENOSPC);
4131 	}
4132 
4133 	/*
4134 	 * 	Search for the first available slot. Because naddrfree
4135 	 * is not zero, we are guaranteed to find one.
4136 	 *	Each of the first two ports of Neptune has 16 alternate
4137 	 * MAC slots but only the first 7 (of 15) slots have assigned factory
4138 	 * MAC addresses. We first search among the slots without bundled
4139 	 * factory MACs. If we fail to find one in that range, then we
4140 	 * search the slots with bundled factory MACs.  A factory MAC
4141 	 * will be wasted while the slot is used with a user MAC address.
4142 	 * But the slot could be used by factory MAC again after calling
4143 	 * nxge_m_mmac_remove and nxge_m_mmac_reserve.
4144 	 */
4145 	for (slot = 0; slot <= mmac_info->num_mmac; slot++) {
4146 		if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
4147 			break;
4148 	}
4149 
4150 	ASSERT(slot <= mmac_info->num_mmac);
4151 
4152 	if ((err = nxge_altmac_set(nxgep, (uint8_t *)maddr, slot, rdctbl,
4153 	    usetbl)) != 0) {
4154 		mutex_exit(nxgep->genlock);
4155 		return (err);
4156 	}
4157 
4158 	bcopy(maddr, mmac_info->mac_pool[slot].addr, ETHERADDRL);
4159 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED;
4160 	mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
4161 	mmac_info->naddrfree--;
4162 	nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4163 
4164 	mutex_exit(nxgep->genlock);
4165 	return (0);
4166 }
4167 
4168 /*
4169  * Remove the specified mac address and update the HW not to filter
4170  * the mac address anymore.
4171  */
4172 int
4173 nxge_m_mmac_remove(void *arg, int slot)
4174 {
4175 	p_nxge_t nxgep = arg;
4176 	nxge_mmac_t *mmac_info;
4177 	uint8_t addrn;
4178 	uint8_t portn;
4179 	int err = 0;
4180 	nxge_status_t status;
4181 
4182 	mutex_enter(nxgep->genlock);
4183 
4184 	/*
4185 	 * Make sure that nxge is initialized, if _start() has
4186 	 * not been called.
4187 	 */
4188 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4189 		status = nxge_init(nxgep);
4190 		if (status != NXGE_OK) {
4191 			mutex_exit(nxgep->genlock);
4192 			return (ENXIO);
4193 		}
4194 	}
4195 
4196 	mmac_info = &nxgep->nxge_mmac_info;
4197 	if (slot < 1 || slot > mmac_info->num_mmac) {
4198 		mutex_exit(nxgep->genlock);
4199 		return (EINVAL);
4200 	}
4201 
4202 	portn = nxgep->mac.portnum;
4203 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4204 		addrn = (uint8_t)slot - 1;
4205 	else
4206 		addrn = (uint8_t)slot;
4207 
4208 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
4209 		if (npi_mac_altaddr_disable(nxgep->npi_handle, portn, addrn)
4210 		    == NPI_SUCCESS) {
4211 			mmac_info->naddrfree++;
4212 			mmac_info->mac_pool[slot].flags &= ~MMAC_SLOT_USED;
4213 			/*
4214 			 * Regardless if the MAC we just stopped filtering
4215 			 * is a user addr or a facory addr, we must set
4216 			 * the MMAC_VENDOR_ADDR flag if this slot has an
4217 			 * associated factory MAC to indicate that a factory
4218 			 * MAC is available.
4219 			 */
4220 			if (slot <= mmac_info->num_factory_mmac) {
4221 				mmac_info->mac_pool[slot].flags
4222 				    |= MMAC_VENDOR_ADDR;
4223 			}
4224 			/*
4225 			 * Clear mac_pool[slot].addr so that kstat shows 0
4226 			 * alternate MAC address if the slot is not used.
4227 			 * (But nxge_m_mmac_get returns the factory MAC even
4228 			 * when the slot is not used!)
4229 			 */
4230 			bzero(mmac_info->mac_pool[slot].addr, ETHERADDRL);
4231 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4232 		} else {
4233 			err = EIO;
4234 		}
4235 	} else {
4236 		err = EINVAL;
4237 	}
4238 
4239 	mutex_exit(nxgep->genlock);
4240 	return (err);
4241 }
4242 
4243 /*
4244  * The callback to query all the factory addresses. naddr must be the same as
4245  * the number of factory addresses (returned by MAC_CAPAB_MULTIFACTADDR), and
4246  * mcm_addr is the space allocated for keep all the addresses, whose size is
4247  * naddr * MAXMACADDRLEN.
4248  */
4249 static void
4250 nxge_m_getfactaddr(void *arg, uint_t naddr, uint8_t *addr)
4251 {
4252 	nxge_t		*nxgep = arg;
4253 	nxge_mmac_t	*mmac_info;
4254 	int		i;
4255 
4256 	mutex_enter(nxgep->genlock);
4257 
4258 	mmac_info = &nxgep->nxge_mmac_info;
4259 	ASSERT(naddr == mmac_info->num_factory_mmac);
4260 
4261 	for (i = 0; i < naddr; i++) {
4262 		bcopy(mmac_info->factory_mac_pool[i + 1],
4263 		    addr + i * MAXMACADDRLEN, ETHERADDRL);
4264 	}
4265 
4266 	mutex_exit(nxgep->genlock);
4267 }
4268 
4269 
4270 static boolean_t
4271 nxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
4272 {
4273 	nxge_t *nxgep = arg;
4274 	uint32_t *txflags = cap_data;
4275 
4276 	switch (cap) {
4277 	case MAC_CAPAB_HCKSUM:
4278 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4279 		    "==> nxge_m_getcapab: checksum %d", nxge_cksum_offload));
4280 		if (nxge_cksum_offload <= 1) {
4281 			*txflags = HCKSUM_INET_PARTIAL;
4282 		}
4283 		break;
4284 
4285 	case MAC_CAPAB_MULTIFACTADDR: {
4286 		mac_capab_multifactaddr_t	*mfacp = cap_data;
4287 
4288 		if (!isLDOMguest(nxgep)) {
4289 			mutex_enter(nxgep->genlock);
4290 			mfacp->mcm_naddr =
4291 			    nxgep->nxge_mmac_info.num_factory_mmac;
4292 			mfacp->mcm_getaddr = nxge_m_getfactaddr;
4293 			mutex_exit(nxgep->genlock);
4294 		}
4295 		break;
4296 	}
4297 
4298 	case MAC_CAPAB_LSO: {
4299 		mac_capab_lso_t *cap_lso = cap_data;
4300 
4301 		if (nxgep->soft_lso_enable) {
4302 			if (nxge_cksum_offload <= 1) {
4303 				cap_lso->lso_flags = LSO_TX_BASIC_TCP_IPV4;
4304 				if (nxge_lso_max > NXGE_LSO_MAXLEN) {
4305 					nxge_lso_max = NXGE_LSO_MAXLEN;
4306 				}
4307 				cap_lso->lso_basic_tcp_ipv4.lso_max =
4308 				    nxge_lso_max;
4309 			}
4310 			break;
4311 		} else {
4312 			return (B_FALSE);
4313 		}
4314 	}
4315 
4316 	case MAC_CAPAB_RINGS: {
4317 		mac_capab_rings_t	*cap_rings = cap_data;
4318 		p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
4319 
4320 		mutex_enter(nxgep->genlock);
4321 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
4322 			if (isLDOMguest(nxgep))  {
4323 				cap_rings->mr_group_type =
4324 				    MAC_GROUP_TYPE_STATIC;
4325 				cap_rings->mr_rnum =
4326 				    NXGE_HIO_SHARE_MAX_CHANNELS;
4327 				cap_rings->mr_rget = nxge_fill_ring;
4328 				cap_rings->mr_gnum = 1;
4329 				cap_rings->mr_gget = nxge_hio_group_get;
4330 				cap_rings->mr_gaddring = NULL;
4331 				cap_rings->mr_gremring = NULL;
4332 			} else {
4333 				/*
4334 				 * Service Domain.
4335 				 */
4336 				cap_rings->mr_group_type =
4337 				    MAC_GROUP_TYPE_DYNAMIC;
4338 				cap_rings->mr_rnum = p_cfgp->max_rdcs;
4339 				cap_rings->mr_rget = nxge_fill_ring;
4340 				cap_rings->mr_gnum = p_cfgp->max_rdc_grpids;
4341 				cap_rings->mr_gget = nxge_hio_group_get;
4342 				cap_rings->mr_gaddring = nxge_group_add_ring;
4343 				cap_rings->mr_gremring = nxge_group_rem_ring;
4344 			}
4345 
4346 			NXGE_DEBUG_MSG((nxgep, RX_CTL,
4347 			    "==> nxge_m_getcapab: rx nrings[%d] ngroups[%d]",
4348 			    p_cfgp->max_rdcs, p_cfgp->max_rdc_grpids));
4349 		} else {
4350 			/*
4351 			 * TX Rings.
4352 			 */
4353 			if (isLDOMguest(nxgep)) {
4354 				cap_rings->mr_group_type =
4355 				    MAC_GROUP_TYPE_STATIC;
4356 				cap_rings->mr_rnum =
4357 				    NXGE_HIO_SHARE_MAX_CHANNELS;
4358 				cap_rings->mr_rget = nxge_fill_ring;
4359 				cap_rings->mr_gnum = 0;
4360 				cap_rings->mr_gget = NULL;
4361 				cap_rings->mr_gaddring = NULL;
4362 				cap_rings->mr_gremring = NULL;
4363 			} else {
4364 				/*
4365 				 * Service Domain.
4366 				 */
4367 				cap_rings->mr_group_type =
4368 				    MAC_GROUP_TYPE_DYNAMIC;
4369 				cap_rings->mr_rnum = p_cfgp->tdc.count;
4370 				cap_rings->mr_rget = nxge_fill_ring;
4371 
4372 				/*
4373 				 * Share capable.
4374 				 *
4375 				 * Do not report the default group: hence -1
4376 				 */
4377 				cap_rings->mr_gnum =
4378 				    NXGE_MAX_TDC_GROUPS / nxgep->nports - 1;
4379 				cap_rings->mr_gget = nxge_hio_group_get;
4380 				cap_rings->mr_gaddring = nxge_group_add_ring;
4381 				cap_rings->mr_gremring = nxge_group_rem_ring;
4382 			}
4383 
4384 			NXGE_DEBUG_MSG((nxgep, TX_CTL,
4385 			    "==> nxge_m_getcapab: tx rings # of rings %d",
4386 			    p_cfgp->tdc.count));
4387 		}
4388 		mutex_exit(nxgep->genlock);
4389 		break;
4390 	}
4391 
4392 #if defined(sun4v)
4393 	case MAC_CAPAB_SHARES: {
4394 		mac_capab_share_t *mshares = (mac_capab_share_t *)cap_data;
4395 
4396 		/*
4397 		 * Only the service domain driver responds to
4398 		 * this capability request.
4399 		 */
4400 		mutex_enter(nxgep->genlock);
4401 		if (isLDOMservice(nxgep)) {
4402 			mshares->ms_snum = 3;
4403 			mshares->ms_handle = (void *)nxgep;
4404 			mshares->ms_salloc = nxge_hio_share_alloc;
4405 			mshares->ms_sfree = nxge_hio_share_free;
4406 			mshares->ms_sadd = nxge_hio_share_add_group;
4407 			mshares->ms_sremove = nxge_hio_share_rem_group;
4408 			mshares->ms_squery = nxge_hio_share_query;
4409 			mshares->ms_sbind = nxge_hio_share_bind;
4410 			mshares->ms_sunbind = nxge_hio_share_unbind;
4411 			mutex_exit(nxgep->genlock);
4412 		} else {
4413 			mutex_exit(nxgep->genlock);
4414 			return (B_FALSE);
4415 		}
4416 		break;
4417 	}
4418 #endif
4419 	default:
4420 		return (B_FALSE);
4421 	}
4422 	return (B_TRUE);
4423 }
4424 
4425 static boolean_t
4426 nxge_param_locked(mac_prop_id_t pr_num)
4427 {
4428 	/*
4429 	 * All adv_* parameters are locked (read-only) while
4430 	 * the device is in any sort of loopback mode ...
4431 	 */
4432 	switch (pr_num) {
4433 		case MAC_PROP_ADV_1000FDX_CAP:
4434 		case MAC_PROP_EN_1000FDX_CAP:
4435 		case MAC_PROP_ADV_1000HDX_CAP:
4436 		case MAC_PROP_EN_1000HDX_CAP:
4437 		case MAC_PROP_ADV_100FDX_CAP:
4438 		case MAC_PROP_EN_100FDX_CAP:
4439 		case MAC_PROP_ADV_100HDX_CAP:
4440 		case MAC_PROP_EN_100HDX_CAP:
4441 		case MAC_PROP_ADV_10FDX_CAP:
4442 		case MAC_PROP_EN_10FDX_CAP:
4443 		case MAC_PROP_ADV_10HDX_CAP:
4444 		case MAC_PROP_EN_10HDX_CAP:
4445 		case MAC_PROP_AUTONEG:
4446 		case MAC_PROP_FLOWCTRL:
4447 			return (B_TRUE);
4448 	}
4449 	return (B_FALSE);
4450 }
4451 
4452 /*
4453  * callback functions for set/get of properties
4454  */
4455 static int
4456 nxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4457     uint_t pr_valsize, const void *pr_val)
4458 {
4459 	nxge_t		*nxgep = barg;
4460 	p_nxge_param_t	param_arr;
4461 	p_nxge_stats_t	statsp;
4462 	int		err = 0;
4463 	uint8_t		val;
4464 	uint32_t	cur_mtu, new_mtu, old_framesize;
4465 	link_flowctrl_t	fl;
4466 
4467 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_setprop"));
4468 	param_arr = nxgep->param_arr;
4469 	statsp = nxgep->statsp;
4470 	mutex_enter(nxgep->genlock);
4471 	if (statsp->port_stats.lb_mode != nxge_lb_normal &&
4472 	    nxge_param_locked(pr_num)) {
4473 		/*
4474 		 * All adv_* parameters are locked (read-only)
4475 		 * while the device is in any sort of loopback mode.
4476 		 */
4477 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4478 		    "==> nxge_m_setprop: loopback mode: read only"));
4479 		mutex_exit(nxgep->genlock);
4480 		return (EBUSY);
4481 	}
4482 
4483 	val = *(uint8_t *)pr_val;
4484 	switch (pr_num) {
4485 		case MAC_PROP_EN_1000FDX_CAP:
4486 			nxgep->param_en_1000fdx = val;
4487 			param_arr[param_anar_1000fdx].value = val;
4488 
4489 			goto reprogram;
4490 
4491 		case MAC_PROP_EN_100FDX_CAP:
4492 			nxgep->param_en_100fdx = val;
4493 			param_arr[param_anar_100fdx].value = val;
4494 
4495 			goto reprogram;
4496 
4497 		case MAC_PROP_EN_10FDX_CAP:
4498 			nxgep->param_en_10fdx = val;
4499 			param_arr[param_anar_10fdx].value = val;
4500 
4501 			goto reprogram;
4502 
4503 		case MAC_PROP_EN_1000HDX_CAP:
4504 		case MAC_PROP_EN_100HDX_CAP:
4505 		case MAC_PROP_EN_10HDX_CAP:
4506 		case MAC_PROP_ADV_1000FDX_CAP:
4507 		case MAC_PROP_ADV_1000HDX_CAP:
4508 		case MAC_PROP_ADV_100FDX_CAP:
4509 		case MAC_PROP_ADV_100HDX_CAP:
4510 		case MAC_PROP_ADV_10FDX_CAP:
4511 		case MAC_PROP_ADV_10HDX_CAP:
4512 		case MAC_PROP_STATUS:
4513 		case MAC_PROP_SPEED:
4514 		case MAC_PROP_DUPLEX:
4515 			err = EINVAL; /* cannot set read-only properties */
4516 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4517 			    "==> nxge_m_setprop:  read only property %d",
4518 			    pr_num));
4519 			break;
4520 
4521 		case MAC_PROP_AUTONEG:
4522 			param_arr[param_autoneg].value = val;
4523 
4524 			goto reprogram;
4525 
4526 		case MAC_PROP_MTU:
4527 			cur_mtu = nxgep->mac.default_mtu;
4528 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
4529 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4530 			    "==> nxge_m_setprop: set MTU: %d is_jumbo %d",
4531 			    new_mtu, nxgep->mac.is_jumbo));
4532 
4533 			if (new_mtu == cur_mtu) {
4534 				err = 0;
4535 				break;
4536 			}
4537 
4538 			if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
4539 				err = EBUSY;
4540 				break;
4541 			}
4542 
4543 			if ((new_mtu < NXGE_DEFAULT_MTU) ||
4544 			    (new_mtu > NXGE_MAXIMUM_MTU)) {
4545 				err = EINVAL;
4546 				break;
4547 			}
4548 
4549 			old_framesize = (uint32_t)nxgep->mac.maxframesize;
4550 			nxgep->mac.maxframesize = (uint16_t)
4551 			    (new_mtu + NXGE_EHEADER_VLAN_CRC);
4552 			if (nxge_mac_set_framesize(nxgep)) {
4553 				nxgep->mac.maxframesize =
4554 				    (uint16_t)old_framesize;
4555 				err = EINVAL;
4556 				break;
4557 			}
4558 
4559 			err = mac_maxsdu_update(nxgep->mach, new_mtu);
4560 			if (err) {
4561 				nxgep->mac.maxframesize =
4562 				    (uint16_t)old_framesize;
4563 				err = EINVAL;
4564 				break;
4565 			}
4566 
4567 			nxgep->mac.default_mtu = new_mtu;
4568 			if (new_mtu > NXGE_DEFAULT_MTU)
4569 				nxgep->mac.is_jumbo = B_TRUE;
4570 			else
4571 				nxgep->mac.is_jumbo = B_FALSE;
4572 
4573 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4574 			    "==> nxge_m_setprop: set MTU: %d maxframe %d",
4575 			    new_mtu, nxgep->mac.maxframesize));
4576 			break;
4577 
4578 		case MAC_PROP_FLOWCTRL:
4579 			bcopy(pr_val, &fl, sizeof (fl));
4580 			switch (fl) {
4581 			default:
4582 				err = EINVAL;
4583 				break;
4584 
4585 			case LINK_FLOWCTRL_NONE:
4586 				param_arr[param_anar_pause].value = 0;
4587 				break;
4588 
4589 			case LINK_FLOWCTRL_RX:
4590 				param_arr[param_anar_pause].value = 1;
4591 				break;
4592 
4593 			case LINK_FLOWCTRL_TX:
4594 			case LINK_FLOWCTRL_BI:
4595 				err = EINVAL;
4596 				break;
4597 			}
4598 
4599 reprogram:
4600 			if (err == 0) {
4601 				if (!nxge_param_link_update(nxgep)) {
4602 					err = EINVAL;
4603 				}
4604 			}
4605 			break;
4606 		case MAC_PROP_PRIVATE:
4607 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4608 			    "==> nxge_m_setprop: private property"));
4609 			err = nxge_set_priv_prop(nxgep, pr_name, pr_valsize,
4610 			    pr_val);
4611 			break;
4612 
4613 		default:
4614 			err = ENOTSUP;
4615 			break;
4616 	}
4617 
4618 	mutex_exit(nxgep->genlock);
4619 
4620 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4621 	    "<== nxge_m_setprop (return %d)", err));
4622 	return (err);
4623 }
4624 
4625 static int
4626 nxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4627     uint_t pr_flags, uint_t pr_valsize, void *pr_val, uint_t *perm)
4628 {
4629 	nxge_t 		*nxgep = barg;
4630 	p_nxge_param_t	param_arr = nxgep->param_arr;
4631 	p_nxge_stats_t	statsp = nxgep->statsp;
4632 	int		err = 0;
4633 	link_flowctrl_t	fl;
4634 	uint64_t	tmp = 0;
4635 	link_state_t	ls;
4636 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4637 
4638 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4639 	    "==> nxge_m_getprop: pr_num %d", pr_num));
4640 
4641 	if (pr_valsize == 0)
4642 		return (EINVAL);
4643 
4644 	*perm = MAC_PROP_PERM_RW;
4645 
4646 	if ((is_default) && (pr_num != MAC_PROP_PRIVATE)) {
4647 		err = nxge_get_def_val(nxgep, pr_num, pr_valsize, pr_val);
4648 		return (err);
4649 	}
4650 
4651 	bzero(pr_val, pr_valsize);
4652 	switch (pr_num) {
4653 		case MAC_PROP_DUPLEX:
4654 			*perm = MAC_PROP_PERM_READ;
4655 			*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
4656 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4657 			    "==> nxge_m_getprop: duplex mode %d",
4658 			    *(uint8_t *)pr_val));
4659 			break;
4660 
4661 		case MAC_PROP_SPEED:
4662 			if (pr_valsize < sizeof (uint64_t))
4663 				return (EINVAL);
4664 			*perm = MAC_PROP_PERM_READ;
4665 			tmp = statsp->mac_stats.link_speed * 1000000ull;
4666 			bcopy(&tmp, pr_val, sizeof (tmp));
4667 			break;
4668 
4669 		case MAC_PROP_STATUS:
4670 			if (pr_valsize < sizeof (link_state_t))
4671 				return (EINVAL);
4672 			*perm = MAC_PROP_PERM_READ;
4673 			if (!statsp->mac_stats.link_up)
4674 				ls = LINK_STATE_DOWN;
4675 			else
4676 				ls = LINK_STATE_UP;
4677 			bcopy(&ls, pr_val, sizeof (ls));
4678 			break;
4679 
4680 		case MAC_PROP_AUTONEG:
4681 			*(uint8_t *)pr_val =
4682 			    param_arr[param_autoneg].value;
4683 			break;
4684 
4685 		case MAC_PROP_FLOWCTRL:
4686 			if (pr_valsize < sizeof (link_flowctrl_t))
4687 				return (EINVAL);
4688 
4689 			fl = LINK_FLOWCTRL_NONE;
4690 			if (param_arr[param_anar_pause].value) {
4691 				fl = LINK_FLOWCTRL_RX;
4692 			}
4693 			bcopy(&fl, pr_val, sizeof (fl));
4694 			break;
4695 
4696 		case MAC_PROP_ADV_1000FDX_CAP:
4697 			*perm = MAC_PROP_PERM_READ;
4698 			*(uint8_t *)pr_val =
4699 			    param_arr[param_anar_1000fdx].value;
4700 			break;
4701 
4702 		case MAC_PROP_EN_1000FDX_CAP:
4703 			*(uint8_t *)pr_val = nxgep->param_en_1000fdx;
4704 			break;
4705 
4706 		case MAC_PROP_ADV_100FDX_CAP:
4707 			*perm = MAC_PROP_PERM_READ;
4708 			*(uint8_t *)pr_val =
4709 			    param_arr[param_anar_100fdx].value;
4710 			break;
4711 
4712 		case MAC_PROP_EN_100FDX_CAP:
4713 			*(uint8_t *)pr_val = nxgep->param_en_100fdx;
4714 			break;
4715 
4716 		case MAC_PROP_ADV_10FDX_CAP:
4717 			*perm = MAC_PROP_PERM_READ;
4718 			*(uint8_t *)pr_val =
4719 			    param_arr[param_anar_10fdx].value;
4720 			break;
4721 
4722 		case MAC_PROP_EN_10FDX_CAP:
4723 			*(uint8_t *)pr_val = nxgep->param_en_10fdx;
4724 			break;
4725 
4726 		case MAC_PROP_EN_1000HDX_CAP:
4727 		case MAC_PROP_EN_100HDX_CAP:
4728 		case MAC_PROP_EN_10HDX_CAP:
4729 		case MAC_PROP_ADV_1000HDX_CAP:
4730 		case MAC_PROP_ADV_100HDX_CAP:
4731 		case MAC_PROP_ADV_10HDX_CAP:
4732 			err = ENOTSUP;
4733 			break;
4734 
4735 		case MAC_PROP_PRIVATE:
4736 			err = nxge_get_priv_prop(nxgep, pr_name, pr_flags,
4737 			    pr_valsize, pr_val, perm);
4738 			break;
4739 
4740 		case MAC_PROP_MTU: {
4741 			mac_propval_range_t	range;
4742 
4743 			if (!(pr_flags & MAC_PROP_POSSIBLE))
4744 				return (ENOTSUP);
4745 			if (pr_valsize < sizeof (mac_propval_range_t))
4746 				return (EINVAL);
4747 			range.mpr_count = 1;
4748 			range.mpr_type = MAC_PROPVAL_UINT32;
4749 			range.range_uint32[0].mpur_min =
4750 			    range.range_uint32[0].mpur_max = NXGE_DEFAULT_MTU;
4751 			range.range_uint32[0].mpur_max = NXGE_MAXIMUM_MTU;
4752 			bcopy(&range, pr_val, sizeof (range));
4753 			break;
4754 		}
4755 		default:
4756 			err = EINVAL;
4757 			break;
4758 	}
4759 
4760 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_getprop"));
4761 
4762 	return (err);
4763 }
4764 
4765 /* ARGSUSED */
4766 static int
4767 nxge_set_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_valsize,
4768     const void *pr_val)
4769 {
4770 	p_nxge_param_t	param_arr = nxgep->param_arr;
4771 	int		err = 0;
4772 	long		result;
4773 
4774 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4775 	    "==> nxge_set_priv_prop: name %s", pr_name));
4776 
4777 	/* Blanking */
4778 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
4779 		err = nxge_param_rx_intr_time(nxgep, NULL, NULL,
4780 		    (char *)pr_val,
4781 		    (caddr_t)&param_arr[param_rxdma_intr_time]);
4782 		if (err) {
4783 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4784 			    "<== nxge_set_priv_prop: "
4785 			    "unable to set (%s)", pr_name));
4786 			err = EINVAL;
4787 		} else {
4788 			err = 0;
4789 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4790 			    "<== nxge_set_priv_prop: "
4791 			    "set (%s)", pr_name));
4792 		}
4793 
4794 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4795 		    "<== nxge_set_priv_prop: name %s (value %d)",
4796 		    pr_name, result));
4797 
4798 		return (err);
4799 	}
4800 
4801 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
4802 		err = nxge_param_rx_intr_pkts(nxgep, NULL, NULL,
4803 		    (char *)pr_val,
4804 		    (caddr_t)&param_arr[param_rxdma_intr_pkts]);
4805 		if (err) {
4806 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4807 			    "<== nxge_set_priv_prop: "
4808 			    "unable to set (%s)", pr_name));
4809 			err = EINVAL;
4810 		} else {
4811 			err = 0;
4812 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4813 			    "<== nxge_set_priv_prop: "
4814 			    "set (%s)", pr_name));
4815 		}
4816 
4817 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4818 		    "<== nxge_set_priv_prop: name %s (value %d)",
4819 		    pr_name, result));
4820 
4821 		return (err);
4822 	}
4823 
4824 	/* Classification */
4825 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
4826 		if (pr_val == NULL) {
4827 			err = EINVAL;
4828 			return (err);
4829 		}
4830 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4831 
4832 		err = nxge_param_set_ip_opt(nxgep, NULL,
4833 		    NULL, (char *)pr_val,
4834 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
4835 
4836 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4837 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4838 		    pr_name, result));
4839 
4840 		return (err);
4841 	}
4842 
4843 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
4844 		if (pr_val == NULL) {
4845 			err = EINVAL;
4846 			return (err);
4847 		}
4848 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4849 
4850 		err = nxge_param_set_ip_opt(nxgep, NULL,
4851 		    NULL, (char *)pr_val,
4852 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
4853 
4854 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4855 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4856 		    pr_name, result));
4857 
4858 		return (err);
4859 	}
4860 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
4861 		if (pr_val == NULL) {
4862 			err = EINVAL;
4863 			return (err);
4864 		}
4865 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4866 
4867 		err = nxge_param_set_ip_opt(nxgep, NULL,
4868 		    NULL, (char *)pr_val,
4869 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
4870 
4871 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4872 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4873 		    pr_name, result));
4874 
4875 		return (err);
4876 	}
4877 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
4878 		if (pr_val == NULL) {
4879 			err = EINVAL;
4880 			return (err);
4881 		}
4882 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4883 
4884 		err = nxge_param_set_ip_opt(nxgep, NULL,
4885 		    NULL, (char *)pr_val,
4886 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
4887 
4888 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4889 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4890 		    pr_name, result));
4891 
4892 		return (err);
4893 	}
4894 
4895 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
4896 		if (pr_val == NULL) {
4897 			err = EINVAL;
4898 			return (err);
4899 		}
4900 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4901 
4902 		err = nxge_param_set_ip_opt(nxgep, NULL,
4903 		    NULL, (char *)pr_val,
4904 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
4905 
4906 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4907 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4908 		    pr_name, result));
4909 
4910 		return (err);
4911 	}
4912 
4913 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
4914 		if (pr_val == NULL) {
4915 			err = EINVAL;
4916 			return (err);
4917 		}
4918 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4919 
4920 		err = nxge_param_set_ip_opt(nxgep, NULL,
4921 		    NULL, (char *)pr_val,
4922 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
4923 
4924 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4925 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4926 		    pr_name, result));
4927 
4928 		return (err);
4929 	}
4930 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
4931 		if (pr_val == NULL) {
4932 			err = EINVAL;
4933 			return (err);
4934 		}
4935 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4936 
4937 		err = nxge_param_set_ip_opt(nxgep, NULL,
4938 		    NULL, (char *)pr_val,
4939 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
4940 
4941 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4942 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4943 		    pr_name, result));
4944 
4945 		return (err);
4946 	}
4947 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
4948 		if (pr_val == NULL) {
4949 			err = EINVAL;
4950 			return (err);
4951 		}
4952 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4953 
4954 		err = nxge_param_set_ip_opt(nxgep, NULL,
4955 		    NULL, (char *)pr_val,
4956 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
4957 
4958 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4959 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4960 		    pr_name, result));
4961 
4962 		return (err);
4963 	}
4964 
4965 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
4966 		if (pr_val == NULL) {
4967 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4968 			    "==> nxge_set_priv_prop: name %s (null)", pr_name));
4969 			err = EINVAL;
4970 			return (err);
4971 		}
4972 
4973 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4974 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4975 		    "<== nxge_set_priv_prop: name %s "
4976 		    "(lso %d pr_val %s value %d)",
4977 		    pr_name, nxgep->soft_lso_enable, pr_val, result));
4978 
4979 		if (result > 1 || result < 0) {
4980 			err = EINVAL;
4981 		} else {
4982 			if (nxgep->soft_lso_enable == (uint32_t)result) {
4983 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4984 				    "no change (%d %d)",
4985 				    nxgep->soft_lso_enable, result));
4986 				return (0);
4987 			}
4988 		}
4989 
4990 		nxgep->soft_lso_enable = (int)result;
4991 
4992 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4993 		    "<== nxge_set_priv_prop: name %s (value %d)",
4994 		    pr_name, result));
4995 
4996 		return (err);
4997 	}
4998 	/*
4999 	 * Commands like "ndd -set /dev/nxge0 adv_10gfdx_cap 1" cause the
5000 	 * following code to be executed.
5001 	 */
5002 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5003 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
5004 		    (caddr_t)&param_arr[param_anar_10gfdx]);
5005 		return (err);
5006 	}
5007 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5008 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
5009 		    (caddr_t)&param_arr[param_anar_pause]);
5010 		return (err);
5011 	}
5012 
5013 	return (EINVAL);
5014 }
5015 
5016 static int
5017 nxge_get_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_flags,
5018     uint_t pr_valsize, void *pr_val, uint_t *perm)
5019 {
5020 	p_nxge_param_t	param_arr = nxgep->param_arr;
5021 	char		valstr[MAXNAMELEN];
5022 	int		err = EINVAL;
5023 	uint_t		strsize;
5024 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
5025 
5026 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5027 	    "==> nxge_get_priv_prop: property %s", pr_name));
5028 
5029 	/* function number */
5030 	if (strcmp(pr_name, "_function_number") == 0) {
5031 		if (is_default)
5032 			return (ENOTSUP);
5033 		*perm = MAC_PROP_PERM_READ;
5034 		(void) snprintf(valstr, sizeof (valstr), "%d",
5035 		    nxgep->function_num);
5036 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5037 		    "==> nxge_get_priv_prop: name %s "
5038 		    "(value %d valstr %s)",
5039 		    pr_name, nxgep->function_num, valstr));
5040 
5041 		err = 0;
5042 		goto done;
5043 	}
5044 
5045 	/* Neptune firmware version */
5046 	if (strcmp(pr_name, "_fw_version") == 0) {
5047 		if (is_default)
5048 			return (ENOTSUP);
5049 		*perm = MAC_PROP_PERM_READ;
5050 		(void) snprintf(valstr, sizeof (valstr), "%s",
5051 		    nxgep->vpd_info.ver);
5052 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5053 		    "==> nxge_get_priv_prop: name %s "
5054 		    "(value %d valstr %s)",
5055 		    pr_name, nxgep->vpd_info.ver, valstr));
5056 
5057 		err = 0;
5058 		goto done;
5059 	}
5060 
5061 	/* port PHY mode */
5062 	if (strcmp(pr_name, "_port_mode") == 0) {
5063 		if (is_default)
5064 			return (ENOTSUP);
5065 		*perm = MAC_PROP_PERM_READ;
5066 		switch (nxgep->mac.portmode) {
5067 		case PORT_1G_COPPER:
5068 			(void) snprintf(valstr, sizeof (valstr), "1G copper %s",
5069 			    nxgep->hot_swappable_phy ?
5070 			    "[Hot Swappable]" : "");
5071 			break;
5072 		case PORT_1G_FIBER:
5073 			(void) snprintf(valstr, sizeof (valstr), "1G fiber %s",
5074 			    nxgep->hot_swappable_phy ?
5075 			    "[hot swappable]" : "");
5076 			break;
5077 		case PORT_10G_COPPER:
5078 			(void) snprintf(valstr, sizeof (valstr),
5079 			    "10G copper %s",
5080 			    nxgep->hot_swappable_phy ?
5081 			    "[hot swappable]" : "");
5082 			break;
5083 		case PORT_10G_FIBER:
5084 			(void) snprintf(valstr, sizeof (valstr), "10G fiber %s",
5085 			    nxgep->hot_swappable_phy ?
5086 			    "[hot swappable]" : "");
5087 			break;
5088 		case PORT_10G_SERDES:
5089 			(void) snprintf(valstr, sizeof (valstr),
5090 			    "10G serdes %s", nxgep->hot_swappable_phy ?
5091 			    "[hot swappable]" : "");
5092 			break;
5093 		case PORT_1G_SERDES:
5094 			(void) snprintf(valstr, sizeof (valstr), "1G serdes %s",
5095 			    nxgep->hot_swappable_phy ?
5096 			    "[hot swappable]" : "");
5097 			break;
5098 		case PORT_1G_TN1010:
5099 			(void) snprintf(valstr, sizeof (valstr),
5100 			    "1G TN1010 copper %s", nxgep->hot_swappable_phy ?
5101 			    "[hot swappable]" : "");
5102 			break;
5103 		case PORT_10G_TN1010:
5104 			(void) snprintf(valstr, sizeof (valstr),
5105 			    "10G TN1010 copper %s", nxgep->hot_swappable_phy ?
5106 			    "[hot swappable]" : "");
5107 			break;
5108 		case PORT_1G_RGMII_FIBER:
5109 			(void) snprintf(valstr, sizeof (valstr),
5110 			    "1G rgmii fiber %s", nxgep->hot_swappable_phy ?
5111 			    "[hot swappable]" : "");
5112 			break;
5113 		case PORT_HSP_MODE:
5114 			(void) snprintf(valstr, sizeof (valstr),
5115 			    "phy not present[hot swappable]");
5116 			break;
5117 		default:
5118 			(void) snprintf(valstr, sizeof (valstr), "unknown %s",
5119 			    nxgep->hot_swappable_phy ?
5120 			    "[hot swappable]" : "");
5121 			break;
5122 		}
5123 
5124 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5125 		    "==> nxge_get_priv_prop: name %s (value %s)",
5126 		    pr_name, valstr));
5127 
5128 		err = 0;
5129 		goto done;
5130 	}
5131 
5132 	/* Hot swappable PHY */
5133 	if (strcmp(pr_name, "_hot_swap_phy") == 0) {
5134 		if (is_default)
5135 			return (ENOTSUP);
5136 		*perm = MAC_PROP_PERM_READ;
5137 		(void) snprintf(valstr, sizeof (valstr), "%s",
5138 		    nxgep->hot_swappable_phy ?
5139 		    "yes" : "no");
5140 
5141 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5142 		    "==> nxge_get_priv_prop: name %s "
5143 		    "(value %d valstr %s)",
5144 		    pr_name, nxgep->hot_swappable_phy, valstr));
5145 
5146 		err = 0;
5147 		goto done;
5148 	}
5149 
5150 
5151 	/* Receive Interrupt Blanking Parameters */
5152 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
5153 		err = 0;
5154 		if (is_default) {
5155 			(void) snprintf(valstr, sizeof (valstr),
5156 			    "%d", RXDMA_RCR_TO_DEFAULT);
5157 			goto done;
5158 		}
5159 
5160 		(void) snprintf(valstr, sizeof (valstr), "%d",
5161 		    nxgep->intr_timeout);
5162 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5163 		    "==> nxge_get_priv_prop: name %s (value %d)",
5164 		    pr_name,
5165 		    (uint32_t)nxgep->intr_timeout));
5166 		goto done;
5167 	}
5168 
5169 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
5170 		err = 0;
5171 		if (is_default) {
5172 			(void) snprintf(valstr, sizeof (valstr),
5173 			    "%d", RXDMA_RCR_PTHRES_DEFAULT);
5174 			goto done;
5175 		}
5176 		(void) snprintf(valstr, sizeof (valstr), "%d",
5177 		    nxgep->intr_threshold);
5178 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5179 		    "==> nxge_get_priv_prop: name %s (value %d)",
5180 		    pr_name, (uint32_t)nxgep->intr_threshold));
5181 
5182 		goto done;
5183 	}
5184 
5185 	/* Classification and Load Distribution Configuration */
5186 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
5187 		if (is_default) {
5188 			(void) snprintf(valstr, sizeof (valstr), "%x",
5189 			    NXGE_CLASS_FLOW_GEN_SERVER);
5190 			err = 0;
5191 			goto done;
5192 		}
5193 		err = nxge_dld_get_ip_opt(nxgep,
5194 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
5195 
5196 		(void) snprintf(valstr, sizeof (valstr), "%x",
5197 		    (int)param_arr[param_class_opt_ipv4_tcp].value);
5198 
5199 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5200 		    "==> nxge_get_priv_prop: %s", valstr));
5201 		goto done;
5202 	}
5203 
5204 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
5205 		if (is_default) {
5206 			(void) snprintf(valstr, sizeof (valstr), "%x",
5207 			    NXGE_CLASS_FLOW_GEN_SERVER);
5208 			err = 0;
5209 			goto done;
5210 		}
5211 		err = nxge_dld_get_ip_opt(nxgep,
5212 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
5213 
5214 		(void) snprintf(valstr, sizeof (valstr), "%x",
5215 		    (int)param_arr[param_class_opt_ipv4_udp].value);
5216 
5217 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5218 		    "==> nxge_get_priv_prop: %s", valstr));
5219 		goto done;
5220 	}
5221 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
5222 		if (is_default) {
5223 			(void) snprintf(valstr, sizeof (valstr), "%x",
5224 			    NXGE_CLASS_FLOW_GEN_SERVER);
5225 			err = 0;
5226 			goto done;
5227 		}
5228 		err = nxge_dld_get_ip_opt(nxgep,
5229 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
5230 
5231 		(void) snprintf(valstr, sizeof (valstr), "%x",
5232 		    (int)param_arr[param_class_opt_ipv4_ah].value);
5233 
5234 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5235 		    "==> nxge_get_priv_prop: %s", valstr));
5236 		goto done;
5237 	}
5238 
5239 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
5240 		if (is_default) {
5241 			(void) snprintf(valstr, sizeof (valstr), "%x",
5242 			    NXGE_CLASS_FLOW_GEN_SERVER);
5243 			err = 0;
5244 			goto done;
5245 		}
5246 		err = nxge_dld_get_ip_opt(nxgep,
5247 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
5248 
5249 		(void) snprintf(valstr, sizeof (valstr), "%x",
5250 		    (int)param_arr[param_class_opt_ipv4_sctp].value);
5251 
5252 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5253 		    "==> nxge_get_priv_prop: %s", valstr));
5254 		goto done;
5255 	}
5256 
5257 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
5258 		if (is_default) {
5259 			(void) snprintf(valstr, sizeof (valstr), "%x",
5260 			    NXGE_CLASS_FLOW_GEN_SERVER);
5261 			err = 0;
5262 			goto done;
5263 		}
5264 		err = nxge_dld_get_ip_opt(nxgep,
5265 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
5266 
5267 		(void) snprintf(valstr, sizeof (valstr), "%x",
5268 		    (int)param_arr[param_class_opt_ipv6_tcp].value);
5269 
5270 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5271 		    "==> nxge_get_priv_prop: %s", valstr));
5272 		goto done;
5273 	}
5274 
5275 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
5276 		if (is_default) {
5277 			(void) snprintf(valstr, sizeof (valstr), "%x",
5278 			    NXGE_CLASS_FLOW_GEN_SERVER);
5279 			err = 0;
5280 			goto done;
5281 		}
5282 		err = nxge_dld_get_ip_opt(nxgep,
5283 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
5284 
5285 		(void) snprintf(valstr, sizeof (valstr), "%x",
5286 		    (int)param_arr[param_class_opt_ipv6_udp].value);
5287 
5288 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5289 		    "==> nxge_get_priv_prop: %s", valstr));
5290 		goto done;
5291 	}
5292 
5293 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
5294 		if (is_default) {
5295 			(void) snprintf(valstr, sizeof (valstr), "%x",
5296 			    NXGE_CLASS_FLOW_GEN_SERVER);
5297 			err = 0;
5298 			goto done;
5299 		}
5300 		err = nxge_dld_get_ip_opt(nxgep,
5301 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
5302 
5303 		(void) snprintf(valstr, sizeof (valstr), "%x",
5304 		    (int)param_arr[param_class_opt_ipv6_ah].value);
5305 
5306 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5307 		    "==> nxge_get_priv_prop: %s", valstr));
5308 		goto done;
5309 	}
5310 
5311 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
5312 		if (is_default) {
5313 			(void) snprintf(valstr, sizeof (valstr), "%x",
5314 			    NXGE_CLASS_FLOW_GEN_SERVER);
5315 			err = 0;
5316 			goto done;
5317 		}
5318 		err = nxge_dld_get_ip_opt(nxgep,
5319 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
5320 
5321 		(void) snprintf(valstr, sizeof (valstr), "%x",
5322 		    (int)param_arr[param_class_opt_ipv6_sctp].value);
5323 
5324 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5325 		    "==> nxge_get_priv_prop: %s", valstr));
5326 		goto done;
5327 	}
5328 
5329 	/* Software LSO */
5330 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
5331 		if (is_default) {
5332 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5333 			err = 0;
5334 			goto done;
5335 		}
5336 		(void) snprintf(valstr, sizeof (valstr),
5337 		    "%d", nxgep->soft_lso_enable);
5338 		err = 0;
5339 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5340 		    "==> nxge_get_priv_prop: name %s (value %d)",
5341 		    pr_name, nxgep->soft_lso_enable));
5342 
5343 		goto done;
5344 	}
5345 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5346 		err = 0;
5347 		if (is_default ||
5348 		    nxgep->param_arr[param_anar_10gfdx].value != 0) {
5349 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5350 			goto done;
5351 		} else {
5352 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5353 			goto done;
5354 		}
5355 	}
5356 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5357 		err = 0;
5358 		if (is_default ||
5359 		    nxgep->param_arr[param_anar_pause].value != 0) {
5360 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5361 			goto done;
5362 		} else {
5363 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5364 			goto done;
5365 		}
5366 	}
5367 
5368 done:
5369 	if (err == 0) {
5370 		strsize = (uint_t)strlen(valstr);
5371 		if (pr_valsize < strsize) {
5372 			err = ENOBUFS;
5373 		} else {
5374 			(void) strlcpy(pr_val, valstr, pr_valsize);
5375 		}
5376 	}
5377 
5378 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5379 	    "<== nxge_get_priv_prop: return %d", err));
5380 	return (err);
5381 }
5382 
5383 /*
5384  * Module loading and removing entry points.
5385  */
5386 
5387 DDI_DEFINE_STREAM_OPS(nxge_dev_ops, nulldev, nulldev, nxge_attach, nxge_detach,
5388     nodev, NULL, D_MP, NULL, nxge_quiesce);
5389 
5390 #define	NXGE_DESC_VER		"Sun NIU 10Gb Ethernet"
5391 
5392 /*
5393  * Module linkage information for the kernel.
5394  */
5395 static struct modldrv 	nxge_modldrv = {
5396 	&mod_driverops,
5397 	NXGE_DESC_VER,
5398 	&nxge_dev_ops
5399 };
5400 
5401 static struct modlinkage modlinkage = {
5402 	MODREV_1, (void *) &nxge_modldrv, NULL
5403 };
5404 
5405 int
5406 _init(void)
5407 {
5408 	int		status;
5409 
5410 	MUTEX_INIT(&nxgedebuglock, NULL, MUTEX_DRIVER, NULL);
5411 
5412 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
5413 
5414 	mac_init_ops(&nxge_dev_ops, "nxge");
5415 
5416 	status = ddi_soft_state_init(&nxge_list, sizeof (nxge_t), 0);
5417 	if (status != 0) {
5418 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL,
5419 		    "failed to init device soft state"));
5420 		goto _init_exit;
5421 	}
5422 
5423 	status = mod_install(&modlinkage);
5424 	if (status != 0) {
5425 		ddi_soft_state_fini(&nxge_list);
5426 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL, "Mod install failed"));
5427 		goto _init_exit;
5428 	}
5429 
5430 	MUTEX_INIT(&nxge_common_lock, NULL, MUTEX_DRIVER, NULL);
5431 
5432 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "<== _init status = 0x%X", status));
5433 	return (status);
5434 
5435 _init_exit:
5436 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "<== _init status = 0x%X", status));
5437 	MUTEX_DESTROY(&nxgedebuglock);
5438 	return (status);
5439 }
5440 
5441 int
5442 _fini(void)
5443 {
5444 	int		status;
5445 
5446 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
5447 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
5448 
5449 	if (nxge_mblks_pending)
5450 		return (EBUSY);
5451 
5452 	status = mod_remove(&modlinkage);
5453 	if (status != DDI_SUCCESS) {
5454 		NXGE_DEBUG_MSG((NULL, MOD_CTL,
5455 		    "Module removal failed 0x%08x",
5456 		    status));
5457 		goto _fini_exit;
5458 	}
5459 
5460 	mac_fini_ops(&nxge_dev_ops);
5461 
5462 	ddi_soft_state_fini(&nxge_list);
5463 
5464 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "<== _fini status = 0x%08x", status));
5465 
5466 	MUTEX_DESTROY(&nxge_common_lock);
5467 	MUTEX_DESTROY(&nxgedebuglock);
5468 	return (status);
5469 
5470 _fini_exit:
5471 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "<== _fini status = 0x%08x", status));
5472 	return (status);
5473 }
5474 
5475 int
5476 _info(struct modinfo *modinfop)
5477 {
5478 	int		status;
5479 
5480 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
5481 	status = mod_info(&modlinkage, modinfop);
5482 	NXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
5483 
5484 	return (status);
5485 }
5486 
5487 /*ARGSUSED*/
5488 static int
5489 nxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5490 {
5491 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5492 	p_nxge_t		nxgep = rhp->nxgep;
5493 	uint32_t		channel;
5494 	p_tx_ring_t		ring;
5495 
5496 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5497 	ring = nxgep->tx_rings->rings[channel];
5498 
5499 	MUTEX_ENTER(&ring->lock);
5500 	ring->tx_ring_handle = rhp->ring_handle;
5501 	MUTEX_EXIT(&ring->lock);
5502 
5503 	return (0);
5504 }
5505 
5506 static void
5507 nxge_tx_ring_stop(mac_ring_driver_t rdriver)
5508 {
5509 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5510 	p_nxge_t		nxgep = rhp->nxgep;
5511 	uint32_t		channel;
5512 	p_tx_ring_t		ring;
5513 
5514 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5515 	ring = nxgep->tx_rings->rings[channel];
5516 
5517 	MUTEX_ENTER(&ring->lock);
5518 	ring->tx_ring_handle = (mac_ring_handle_t)NULL;
5519 	MUTEX_EXIT(&ring->lock);
5520 }
5521 
5522 static int
5523 nxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5524 {
5525 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5526 	p_nxge_t		nxgep = rhp->nxgep;
5527 	uint32_t		channel;
5528 	p_rx_rcr_ring_t		ring;
5529 	int			i;
5530 
5531 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5532 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5533 
5534 	MUTEX_ENTER(&ring->lock);
5535 
5536 	if (nxgep->rx_channel_started[channel] == B_TRUE) {
5537 		MUTEX_EXIT(&ring->lock);
5538 		return (0);
5539 	}
5540 
5541 	/* set rcr_ring */
5542 	for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5543 		if ((nxgep->ldgvp->ldvp[i].is_rxdma == 1) &&
5544 		    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5545 			ring->ldvp = &nxgep->ldgvp->ldvp[i];
5546 			ring->ldgp = nxgep->ldgvp->ldvp[i].ldgp;
5547 		}
5548 	}
5549 
5550 	nxgep->rx_channel_started[channel] = B_TRUE;
5551 	ring->rcr_mac_handle = rhp->ring_handle;
5552 	ring->rcr_gen_num = mr_gen_num;
5553 	MUTEX_EXIT(&ring->lock);
5554 
5555 	return (0);
5556 }
5557 
5558 static void
5559 nxge_rx_ring_stop(mac_ring_driver_t rdriver)
5560 {
5561 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5562 	p_nxge_t		nxgep = rhp->nxgep;
5563 	uint32_t		channel;
5564 	p_rx_rcr_ring_t		ring;
5565 
5566 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5567 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5568 
5569 	MUTEX_ENTER(&ring->lock);
5570 	nxgep->rx_channel_started[channel] = B_FALSE;
5571 	ring->rcr_mac_handle = NULL;
5572 	MUTEX_EXIT(&ring->lock);
5573 }
5574 
5575 /*
5576  * Callback funtion for MAC layer to register all rings.
5577  */
5578 static void
5579 nxge_fill_ring(void *arg, mac_ring_type_t rtype, const int rg_index,
5580     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
5581 {
5582 	p_nxge_t		nxgep = (p_nxge_t)arg;
5583 	p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
5584 
5585 	NXGE_DEBUG_MSG((nxgep, TX_CTL,
5586 	    "==> nxge_fill_ring 0x%x index %d", rtype, index));
5587 
5588 	switch (rtype) {
5589 	case MAC_RING_TYPE_TX: {
5590 		p_nxge_ring_handle_t	rhandlep;
5591 
5592 		NXGE_DEBUG_MSG((nxgep, TX_CTL,
5593 		    "==> nxge_fill_ring (TX) 0x%x index %d ntdcs %d",
5594 		    rtype, index, p_cfgp->tdc.count));
5595 
5596 		ASSERT((index >= 0) && (index < p_cfgp->tdc.count));
5597 		rhandlep = &nxgep->tx_ring_handles[index];
5598 		rhandlep->nxgep = nxgep;
5599 		rhandlep->index = index;
5600 		rhandlep->ring_handle = rh;
5601 
5602 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5603 		infop->mri_start = nxge_tx_ring_start;
5604 		infop->mri_stop = nxge_tx_ring_stop;
5605 		infop->mri_tx = nxge_tx_ring_send;
5606 
5607 		break;
5608 	}
5609 	case MAC_RING_TYPE_RX: {
5610 		p_nxge_ring_handle_t	rhandlep;
5611 		int			nxge_rindex;
5612 		mac_intr_t		nxge_mac_intr;
5613 
5614 		NXGE_DEBUG_MSG((nxgep, RX_CTL,
5615 		    "==> nxge_fill_ring (RX) 0x%x index %d nrdcs %d",
5616 		    rtype, index, p_cfgp->max_rdcs));
5617 
5618 		/*
5619 		 * 'index' is the ring index within the group.
5620 		 * Find the ring index in the nxge instance.
5621 		 */
5622 		nxge_rindex = nxge_get_rxring_index(nxgep, rg_index, index);
5623 
5624 		ASSERT((nxge_rindex >= 0) && (nxge_rindex < p_cfgp->max_rdcs));
5625 		rhandlep = &nxgep->rx_ring_handles[nxge_rindex];
5626 		rhandlep->nxgep = nxgep;
5627 		rhandlep->index = nxge_rindex;
5628 		rhandlep->ring_handle = rh;
5629 
5630 		/*
5631 		 * Entrypoint to enable interrupt (disable poll) and
5632 		 * disable interrupt (enable poll).
5633 		 */
5634 		nxge_mac_intr.mi_handle = (mac_intr_handle_t)rhandlep;
5635 		nxge_mac_intr.mi_enable = (mac_intr_enable_t)nxge_disable_poll;
5636 		nxge_mac_intr.mi_disable = (mac_intr_disable_t)nxge_enable_poll;
5637 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5638 		infop->mri_start = nxge_rx_ring_start;
5639 		infop->mri_stop = nxge_rx_ring_stop;
5640 		infop->mri_intr = nxge_mac_intr; /* ??? */
5641 		infop->mri_poll = nxge_rx_poll;
5642 
5643 		break;
5644 	}
5645 	default:
5646 		break;
5647 	}
5648 
5649 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_fill_ring 0x%x",
5650 	    rtype));
5651 }
5652 
5653 static void
5654 nxge_group_add_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5655     mac_ring_type_t type)
5656 {
5657 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5658 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5659 	nxge_t			*nxge;
5660 	nxge_grp_t		*grp;
5661 	nxge_rdc_grp_t		*rdc_grp;
5662 	uint16_t		channel;	/* device-wise ring id */
5663 	int			dev_gindex;
5664 	int			rv;
5665 
5666 	nxge = rgroup->nxgep;
5667 
5668 	switch (type) {
5669 	case MAC_RING_TYPE_TX:
5670 		/*
5671 		 * nxge_grp_dc_add takes a channel number which is a
5672 		 * "devise" ring ID.
5673 		 */
5674 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5675 
5676 		/*
5677 		 * Remove the ring from the default group
5678 		 */
5679 		if (rgroup->gindex != 0) {
5680 			(void) nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5681 		}
5682 
5683 		/*
5684 		 * nxge->tx_set.group[] is an array of groups indexed by
5685 		 * a "port" group ID.
5686 		 */
5687 		grp = nxge->tx_set.group[rgroup->gindex];
5688 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5689 		if (rv != 0) {
5690 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5691 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5692 		}
5693 		break;
5694 
5695 	case MAC_RING_TYPE_RX:
5696 		/*
5697 		 * nxge->rx_set.group[] is an array of groups indexed by
5698 		 * a "port" group ID.
5699 		 */
5700 		grp = nxge->rx_set.group[rgroup->gindex];
5701 
5702 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5703 		    rgroup->gindex;
5704 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5705 
5706 		/*
5707 		 * nxge_grp_dc_add takes a channel number which is a
5708 		 * "devise" ring ID.
5709 		 */
5710 		channel = nxge->pt_config.hw_config.start_rdc + rhandle->index;
5711 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_RX, channel);
5712 		if (rv != 0) {
5713 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5714 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5715 		}
5716 
5717 		rdc_grp->map |= (1 << channel);
5718 		rdc_grp->max_rdcs++;
5719 
5720 		(void) nxge_init_fzc_rdc_tbl(nxge, rdc_grp, rgroup->rdctbl);
5721 		break;
5722 	}
5723 }
5724 
5725 static void
5726 nxge_group_rem_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5727     mac_ring_type_t type)
5728 {
5729 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5730 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5731 	nxge_t			*nxge;
5732 	uint16_t		channel;	/* device-wise ring id */
5733 	nxge_rdc_grp_t		*rdc_grp;
5734 	int			dev_gindex;
5735 
5736 	nxge = rgroup->nxgep;
5737 
5738 	switch (type) {
5739 	case MAC_RING_TYPE_TX:
5740 		dev_gindex = nxge->pt_config.hw_config.def_mac_txdma_grpid +
5741 		    rgroup->gindex;
5742 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5743 		nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5744 
5745 		/*
5746 		 * Add the ring back to the default group
5747 		 */
5748 		if (rgroup->gindex != 0) {
5749 			nxge_grp_t *grp;
5750 			grp = nxge->tx_set.group[0];
5751 			(void) nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5752 		}
5753 		break;
5754 
5755 	case MAC_RING_TYPE_RX:
5756 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5757 		    rgroup->gindex;
5758 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5759 		channel = rdc_grp->start_rdc + rhandle->index;
5760 		nxge_grp_dc_remove(nxge, VP_BOUND_RX, channel);
5761 
5762 		rdc_grp->map &= ~(1 << channel);
5763 		rdc_grp->max_rdcs--;
5764 
5765 		(void) nxge_init_fzc_rdc_tbl(nxge, rdc_grp, rgroup->rdctbl);
5766 		break;
5767 	}
5768 }
5769 
5770 
5771 /*ARGSUSED*/
5772 static nxge_status_t
5773 nxge_add_intrs(p_nxge_t nxgep)
5774 {
5775 
5776 	int		intr_types;
5777 	int		type = 0;
5778 	int		ddi_status = DDI_SUCCESS;
5779 	nxge_status_t	status = NXGE_OK;
5780 
5781 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs"));
5782 
5783 	nxgep->nxge_intr_type.intr_registered = B_FALSE;
5784 	nxgep->nxge_intr_type.intr_enabled = B_FALSE;
5785 	nxgep->nxge_intr_type.msi_intx_cnt = 0;
5786 	nxgep->nxge_intr_type.intr_added = 0;
5787 	nxgep->nxge_intr_type.niu_msi_enable = B_FALSE;
5788 	nxgep->nxge_intr_type.intr_type = 0;
5789 
5790 	if (nxgep->niu_type == N2_NIU) {
5791 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5792 	} else if (nxge_msi_enable) {
5793 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5794 	}
5795 
5796 	/* Get the supported interrupt types */
5797 	if ((ddi_status = ddi_intr_get_supported_types(nxgep->dip, &intr_types))
5798 	    != DDI_SUCCESS) {
5799 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_intrs: "
5800 		    "ddi_intr_get_supported_types failed: status 0x%08x",
5801 		    ddi_status));
5802 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5803 	}
5804 	nxgep->nxge_intr_type.intr_types = intr_types;
5805 
5806 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5807 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5808 
5809 	/*
5810 	 * Solaris MSIX is not supported yet. use MSI for now.
5811 	 * nxge_msi_enable (1):
5812 	 *	1 - MSI		2 - MSI-X	others - FIXED
5813 	 */
5814 	switch (nxge_msi_enable) {
5815 	default:
5816 		type = DDI_INTR_TYPE_FIXED;
5817 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5818 		    "use fixed (intx emulation) type %08x",
5819 		    type));
5820 		break;
5821 
5822 	case 2:
5823 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5824 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5825 		if (intr_types & DDI_INTR_TYPE_MSIX) {
5826 			type = DDI_INTR_TYPE_MSIX;
5827 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5828 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5829 			    type));
5830 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
5831 			type = DDI_INTR_TYPE_MSI;
5832 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5833 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5834 			    type));
5835 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5836 			type = DDI_INTR_TYPE_FIXED;
5837 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5838 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5839 			    type));
5840 		}
5841 		break;
5842 
5843 	case 1:
5844 		if (intr_types & DDI_INTR_TYPE_MSI) {
5845 			type = DDI_INTR_TYPE_MSI;
5846 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5847 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5848 			    type));
5849 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
5850 			type = DDI_INTR_TYPE_MSIX;
5851 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5852 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5853 			    type));
5854 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5855 			type = DDI_INTR_TYPE_FIXED;
5856 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5857 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5858 			    type));
5859 		}
5860 	}
5861 
5862 	nxgep->nxge_intr_type.intr_type = type;
5863 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
5864 	    type == DDI_INTR_TYPE_FIXED) &&
5865 	    nxgep->nxge_intr_type.niu_msi_enable) {
5866 		if ((status = nxge_add_intrs_adv(nxgep)) != DDI_SUCCESS) {
5867 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5868 			    " nxge_add_intrs: "
5869 			    " nxge_add_intrs_adv failed: status 0x%08x",
5870 			    status));
5871 			return (status);
5872 		} else {
5873 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5874 			    "interrupts registered : type %d", type));
5875 			nxgep->nxge_intr_type.intr_registered = B_TRUE;
5876 
5877 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
5878 			    "\nAdded advanced nxge add_intr_adv "
5879 			    "intr type 0x%x\n", type));
5880 
5881 			return (status);
5882 		}
5883 	}
5884 
5885 	if (!nxgep->nxge_intr_type.intr_registered) {
5886 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_add_intrs: "
5887 		    "failed to register interrupts"));
5888 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5889 	}
5890 
5891 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_add_intrs"));
5892 	return (status);
5893 }
5894 
5895 static nxge_status_t
5896 nxge_add_intrs_adv(p_nxge_t nxgep)
5897 {
5898 	int		intr_type;
5899 	p_nxge_intr_t	intrp;
5900 
5901 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv"));
5902 
5903 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5904 	intr_type = intrp->intr_type;
5905 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv: type 0x%x",
5906 	    intr_type));
5907 
5908 	switch (intr_type) {
5909 	case DDI_INTR_TYPE_MSI: /* 0x2 */
5910 	case DDI_INTR_TYPE_MSIX: /* 0x4 */
5911 		return (nxge_add_intrs_adv_type(nxgep, intr_type));
5912 
5913 	case DDI_INTR_TYPE_FIXED: /* 0x1 */
5914 		return (nxge_add_intrs_adv_type_fix(nxgep, intr_type));
5915 
5916 	default:
5917 		return (NXGE_ERROR);
5918 	}
5919 }
5920 
5921 
5922 /*ARGSUSED*/
5923 static nxge_status_t
5924 nxge_add_intrs_adv_type(p_nxge_t nxgep, uint32_t int_type)
5925 {
5926 	dev_info_t		*dip = nxgep->dip;
5927 	p_nxge_ldg_t		ldgp;
5928 	p_nxge_intr_t		intrp;
5929 	uint_t			*inthandler;
5930 	void			*arg1, *arg2;
5931 	int			behavior;
5932 	int			nintrs, navail, nrequest;
5933 	int			nactual, nrequired;
5934 	int			inum = 0;
5935 	int			x, y;
5936 	int			ddi_status = DDI_SUCCESS;
5937 	nxge_status_t		status = NXGE_OK;
5938 
5939 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type"));
5940 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5941 	intrp->start_inum = 0;
5942 
5943 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
5944 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
5945 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5946 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
5947 		    "nintrs: %d", ddi_status, nintrs));
5948 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5949 	}
5950 
5951 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
5952 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
5953 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5954 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
5955 		    "nintrs: %d", ddi_status, navail));
5956 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5957 	}
5958 
5959 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
5960 	    "ddi_intr_get_navail() returned: nintrs %d, navail %d",
5961 	    nintrs, navail));
5962 
5963 	/* PSARC/2007/453 MSI-X interrupt limit override */
5964 	if (int_type == DDI_INTR_TYPE_MSIX) {
5965 		nrequest = nxge_create_msi_property(nxgep);
5966 		if (nrequest < navail) {
5967 			navail = nrequest;
5968 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5969 			    "nxge_add_intrs_adv_type: nintrs %d "
5970 			    "navail %d (nrequest %d)",
5971 			    nintrs, navail, nrequest));
5972 		}
5973 	}
5974 
5975 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
5976 		/* MSI must be power of 2 */
5977 		if ((navail & 16) == 16) {
5978 			navail = 16;
5979 		} else if ((navail & 8) == 8) {
5980 			navail = 8;
5981 		} else if ((navail & 4) == 4) {
5982 			navail = 4;
5983 		} else if ((navail & 2) == 2) {
5984 			navail = 2;
5985 		} else {
5986 			navail = 1;
5987 		}
5988 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5989 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
5990 		    "navail %d", nintrs, navail));
5991 	}
5992 
5993 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
5994 	    DDI_INTR_ALLOC_NORMAL);
5995 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
5996 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
5997 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
5998 	    navail, &nactual, behavior);
5999 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6000 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6001 		    " ddi_intr_alloc() failed: %d",
6002 		    ddi_status));
6003 		kmem_free(intrp->htable, intrp->intr_size);
6004 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6005 	}
6006 
6007 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6008 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6009 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6010 		    " ddi_intr_get_pri() failed: %d",
6011 		    ddi_status));
6012 		/* Free already allocated interrupts */
6013 		for (y = 0; y < nactual; y++) {
6014 			(void) ddi_intr_free(intrp->htable[y]);
6015 		}
6016 
6017 		kmem_free(intrp->htable, intrp->intr_size);
6018 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6019 	}
6020 
6021 	nrequired = 0;
6022 	switch (nxgep->niu_type) {
6023 	default:
6024 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6025 		break;
6026 
6027 	case N2_NIU:
6028 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6029 		break;
6030 	}
6031 
6032 	if (status != NXGE_OK) {
6033 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6034 		    "nxge_add_intrs_adv_typ:nxge_ldgv_init "
6035 		    "failed: 0x%x", status));
6036 		/* Free already allocated interrupts */
6037 		for (y = 0; y < nactual; y++) {
6038 			(void) ddi_intr_free(intrp->htable[y]);
6039 		}
6040 
6041 		kmem_free(intrp->htable, intrp->intr_size);
6042 		return (status);
6043 	}
6044 
6045 	ldgp = nxgep->ldgvp->ldgp;
6046 	for (x = 0; x < nrequired; x++, ldgp++) {
6047 		ldgp->vector = (uint8_t)x;
6048 		ldgp->intdata = SID_DATA(ldgp->func, x);
6049 		arg1 = ldgp->ldvp;
6050 		arg2 = nxgep;
6051 		if (ldgp->nldvs == 1) {
6052 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
6053 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6054 			    "nxge_add_intrs_adv_type: "
6055 			    "arg1 0x%x arg2 0x%x: "
6056 			    "1-1 int handler (entry %d intdata 0x%x)\n",
6057 			    arg1, arg2,
6058 			    x, ldgp->intdata));
6059 		} else if (ldgp->nldvs > 1) {
6060 			inthandler = (uint_t *)ldgp->sys_intr_handler;
6061 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6062 			    "nxge_add_intrs_adv_type: "
6063 			    "arg1 0x%x arg2 0x%x: "
6064 			    "nldevs %d int handler "
6065 			    "(entry %d intdata 0x%x)\n",
6066 			    arg1, arg2,
6067 			    ldgp->nldvs, x, ldgp->intdata));
6068 		}
6069 
6070 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6071 		    "==> nxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
6072 		    "htable 0x%llx", x, intrp->htable[x]));
6073 
6074 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6075 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6076 		    != DDI_SUCCESS) {
6077 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6078 			    "==> nxge_add_intrs_adv_type: failed #%d "
6079 			    "status 0x%x", x, ddi_status));
6080 			for (y = 0; y < intrp->intr_added; y++) {
6081 				(void) ddi_intr_remove_handler(
6082 				    intrp->htable[y]);
6083 			}
6084 			/* Free already allocated intr */
6085 			for (y = 0; y < nactual; y++) {
6086 				(void) ddi_intr_free(intrp->htable[y]);
6087 			}
6088 			kmem_free(intrp->htable, intrp->intr_size);
6089 
6090 			(void) nxge_ldgv_uninit(nxgep);
6091 
6092 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6093 		}
6094 		intrp->intr_added++;
6095 	}
6096 
6097 	intrp->msi_intx_cnt = nactual;
6098 
6099 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6100 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
6101 	    navail, nactual,
6102 	    intrp->msi_intx_cnt,
6103 	    intrp->intr_added));
6104 
6105 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6106 
6107 	(void) nxge_intr_ldgv_init(nxgep);
6108 
6109 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type"));
6110 
6111 	return (status);
6112 }
6113 
6114 /*ARGSUSED*/
6115 static nxge_status_t
6116 nxge_add_intrs_adv_type_fix(p_nxge_t nxgep, uint32_t int_type)
6117 {
6118 	dev_info_t		*dip = nxgep->dip;
6119 	p_nxge_ldg_t		ldgp;
6120 	p_nxge_intr_t		intrp;
6121 	uint_t			*inthandler;
6122 	void			*arg1, *arg2;
6123 	int			behavior;
6124 	int			nintrs, navail;
6125 	int			nactual, nrequired;
6126 	int			inum = 0;
6127 	int			x, y;
6128 	int			ddi_status = DDI_SUCCESS;
6129 	nxge_status_t		status = NXGE_OK;
6130 
6131 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type_fix"));
6132 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6133 	intrp->start_inum = 0;
6134 
6135 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
6136 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
6137 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6138 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
6139 		    "nintrs: %d", status, nintrs));
6140 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6141 	}
6142 
6143 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
6144 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
6145 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6146 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
6147 		    "nintrs: %d", ddi_status, navail));
6148 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6149 	}
6150 
6151 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
6152 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
6153 	    nintrs, navail));
6154 
6155 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
6156 	    DDI_INTR_ALLOC_NORMAL);
6157 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
6158 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
6159 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
6160 	    navail, &nactual, behavior);
6161 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6162 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6163 		    " ddi_intr_alloc() failed: %d",
6164 		    ddi_status));
6165 		kmem_free(intrp->htable, intrp->intr_size);
6166 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6167 	}
6168 
6169 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6170 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6171 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6172 		    " ddi_intr_get_pri() failed: %d",
6173 		    ddi_status));
6174 		/* Free already allocated interrupts */
6175 		for (y = 0; y < nactual; y++) {
6176 			(void) ddi_intr_free(intrp->htable[y]);
6177 		}
6178 
6179 		kmem_free(intrp->htable, intrp->intr_size);
6180 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6181 	}
6182 
6183 	nrequired = 0;
6184 	switch (nxgep->niu_type) {
6185 	default:
6186 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6187 		break;
6188 
6189 	case N2_NIU:
6190 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6191 		break;
6192 	}
6193 
6194 	if (status != NXGE_OK) {
6195 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6196 		    "nxge_add_intrs_adv_type_fix:nxge_ldgv_init "
6197 		    "failed: 0x%x", status));
6198 		/* Free already allocated interrupts */
6199 		for (y = 0; y < nactual; y++) {
6200 			(void) ddi_intr_free(intrp->htable[y]);
6201 		}
6202 
6203 		kmem_free(intrp->htable, intrp->intr_size);
6204 		return (status);
6205 	}
6206 
6207 	ldgp = nxgep->ldgvp->ldgp;
6208 	for (x = 0; x < nrequired; x++, ldgp++) {
6209 		ldgp->vector = (uint8_t)x;
6210 		if (nxgep->niu_type != N2_NIU) {
6211 			ldgp->intdata = SID_DATA(ldgp->func, x);
6212 		}
6213 
6214 		arg1 = ldgp->ldvp;
6215 		arg2 = nxgep;
6216 		if (ldgp->nldvs == 1) {
6217 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
6218 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6219 			    "nxge_add_intrs_adv_type_fix: "
6220 			    "1-1 int handler(%d) ldg %d ldv %d "
6221 			    "arg1 $%p arg2 $%p\n",
6222 			    x, ldgp->ldg, ldgp->ldvp->ldv,
6223 			    arg1, arg2));
6224 		} else if (ldgp->nldvs > 1) {
6225 			inthandler = (uint_t *)ldgp->sys_intr_handler;
6226 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6227 			    "nxge_add_intrs_adv_type_fix: "
6228 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
6229 			    "arg1 0x%016llx arg2 0x%016llx\n",
6230 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
6231 			    arg1, arg2));
6232 		}
6233 
6234 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6235 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6236 		    != DDI_SUCCESS) {
6237 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6238 			    "==> nxge_add_intrs_adv_type_fix: failed #%d "
6239 			    "status 0x%x", x, ddi_status));
6240 			for (y = 0; y < intrp->intr_added; y++) {
6241 				(void) ddi_intr_remove_handler(
6242 				    intrp->htable[y]);
6243 			}
6244 			for (y = 0; y < nactual; y++) {
6245 				(void) ddi_intr_free(intrp->htable[y]);
6246 			}
6247 			/* Free already allocated intr */
6248 			kmem_free(intrp->htable, intrp->intr_size);
6249 
6250 			(void) nxge_ldgv_uninit(nxgep);
6251 
6252 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6253 		}
6254 		intrp->intr_added++;
6255 	}
6256 
6257 	intrp->msi_intx_cnt = nactual;
6258 
6259 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6260 
6261 	status = nxge_intr_ldgv_init(nxgep);
6262 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type_fix"));
6263 
6264 	return (status);
6265 }
6266 
6267 static void
6268 nxge_remove_intrs(p_nxge_t nxgep)
6269 {
6270 	int		i, inum;
6271 	p_nxge_intr_t	intrp;
6272 
6273 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs"));
6274 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6275 	if (!intrp->intr_registered) {
6276 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6277 		    "<== nxge_remove_intrs: interrupts not registered"));
6278 		return;
6279 	}
6280 
6281 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs:advanced"));
6282 
6283 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6284 		(void) ddi_intr_block_disable(intrp->htable,
6285 		    intrp->intr_added);
6286 	} else {
6287 		for (i = 0; i < intrp->intr_added; i++) {
6288 			(void) ddi_intr_disable(intrp->htable[i]);
6289 		}
6290 	}
6291 
6292 	for (inum = 0; inum < intrp->intr_added; inum++) {
6293 		if (intrp->htable[inum]) {
6294 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
6295 		}
6296 	}
6297 
6298 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
6299 		if (intrp->htable[inum]) {
6300 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6301 			    "nxge_remove_intrs: ddi_intr_free inum %d "
6302 			    "msi_intx_cnt %d intr_added %d",
6303 			    inum,
6304 			    intrp->msi_intx_cnt,
6305 			    intrp->intr_added));
6306 
6307 			(void) ddi_intr_free(intrp->htable[inum]);
6308 		}
6309 	}
6310 
6311 	kmem_free(intrp->htable, intrp->intr_size);
6312 	intrp->intr_registered = B_FALSE;
6313 	intrp->intr_enabled = B_FALSE;
6314 	intrp->msi_intx_cnt = 0;
6315 	intrp->intr_added = 0;
6316 
6317 	(void) nxge_ldgv_uninit(nxgep);
6318 
6319 	(void) ddi_prop_remove(DDI_DEV_T_NONE, nxgep->dip,
6320 	    "#msix-request");
6321 
6322 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_intrs"));
6323 }
6324 
6325 /*ARGSUSED*/
6326 static void
6327 nxge_intrs_enable(p_nxge_t nxgep)
6328 {
6329 	p_nxge_intr_t	intrp;
6330 	int		i;
6331 	int		status;
6332 
6333 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable"));
6334 
6335 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6336 
6337 	if (!intrp->intr_registered) {
6338 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_intrs_enable: "
6339 		    "interrupts are not registered"));
6340 		return;
6341 	}
6342 
6343 	if (intrp->intr_enabled) {
6344 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6345 		    "<== nxge_intrs_enable: already enabled"));
6346 		return;
6347 	}
6348 
6349 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6350 		status = ddi_intr_block_enable(intrp->htable,
6351 		    intrp->intr_added);
6352 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6353 		    "block enable - status 0x%x total inums #%d\n",
6354 		    status, intrp->intr_added));
6355 	} else {
6356 		for (i = 0; i < intrp->intr_added; i++) {
6357 			status = ddi_intr_enable(intrp->htable[i]);
6358 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6359 			    "ddi_intr_enable:enable - status 0x%x "
6360 			    "total inums %d enable inum #%d\n",
6361 			    status, intrp->intr_added, i));
6362 			if (status == DDI_SUCCESS) {
6363 				intrp->intr_enabled = B_TRUE;
6364 			}
6365 		}
6366 	}
6367 
6368 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_enable"));
6369 }
6370 
6371 /*ARGSUSED*/
6372 static void
6373 nxge_intrs_disable(p_nxge_t nxgep)
6374 {
6375 	p_nxge_intr_t	intrp;
6376 	int		i;
6377 
6378 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_disable"));
6379 
6380 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6381 
6382 	if (!intrp->intr_registered) {
6383 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable: "
6384 		    "interrupts are not registered"));
6385 		return;
6386 	}
6387 
6388 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6389 		(void) ddi_intr_block_disable(intrp->htable,
6390 		    intrp->intr_added);
6391 	} else {
6392 		for (i = 0; i < intrp->intr_added; i++) {
6393 			(void) ddi_intr_disable(intrp->htable[i]);
6394 		}
6395 	}
6396 
6397 	intrp->intr_enabled = B_FALSE;
6398 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable"));
6399 }
6400 
6401 nxge_status_t
6402 nxge_mac_register(p_nxge_t nxgep)
6403 {
6404 	mac_register_t *macp;
6405 	int		status;
6406 
6407 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_mac_register"));
6408 
6409 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
6410 		return (NXGE_ERROR);
6411 
6412 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
6413 	macp->m_driver = nxgep;
6414 	macp->m_dip = nxgep->dip;
6415 	if (!isLDOMguest(nxgep)) {
6416 		macp->m_src_addr = nxgep->ouraddr.ether_addr_octet;
6417 	} else {
6418 		macp->m_src_addr = KMEM_ZALLOC(MAXMACADDRLEN, KM_SLEEP);
6419 		macp->m_dst_addr = KMEM_ZALLOC(MAXMACADDRLEN, KM_SLEEP);
6420 		(void) memset(macp->m_src_addr, 0xff, sizeof (MAXMACADDRLEN));
6421 	}
6422 	macp->m_callbacks = &nxge_m_callbacks;
6423 	macp->m_min_sdu = 0;
6424 	nxgep->mac.default_mtu = nxgep->mac.maxframesize -
6425 	    NXGE_EHEADER_VLAN_CRC;
6426 	macp->m_max_sdu = nxgep->mac.default_mtu;
6427 	macp->m_margin = VLAN_TAGSZ;
6428 	macp->m_priv_props = nxge_priv_props;
6429 	macp->m_priv_prop_count = NXGE_MAX_PRIV_PROPS;
6430 	if (isLDOMguest(nxgep)) {
6431 		macp->m_v12n = MAC_VIRT_LEVEL1 | MAC_VIRT_SERIALIZE;
6432 	} else {
6433 		macp->m_v12n = MAC_VIRT_HIO | MAC_VIRT_LEVEL1 | \
6434 		    MAC_VIRT_SERIALIZE;
6435 	}
6436 
6437 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
6438 	    "==> nxge_mac_register: instance %d "
6439 	    "max_sdu %d margin %d maxframe %d (header %d)",
6440 	    nxgep->instance,
6441 	    macp->m_max_sdu, macp->m_margin,
6442 	    nxgep->mac.maxframesize,
6443 	    NXGE_EHEADER_VLAN_CRC));
6444 
6445 	status = mac_register(macp, &nxgep->mach);
6446 	if (isLDOMguest(nxgep)) {
6447 		KMEM_FREE(macp->m_src_addr, MAXMACADDRLEN);
6448 		KMEM_FREE(macp->m_dst_addr, MAXMACADDRLEN);
6449 	}
6450 	mac_free(macp);
6451 
6452 	if (status != 0) {
6453 		cmn_err(CE_WARN,
6454 		    "!nxge_mac_register failed (status %d instance %d)",
6455 		    status, nxgep->instance);
6456 		return (NXGE_ERROR);
6457 	}
6458 
6459 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_mac_register success "
6460 	    "(instance %d)", nxgep->instance));
6461 
6462 	return (NXGE_OK);
6463 }
6464 
6465 void
6466 nxge_err_inject(p_nxge_t nxgep, queue_t *wq, mblk_t *mp)
6467 {
6468 	ssize_t		size;
6469 	mblk_t		*nmp;
6470 	uint8_t		blk_id;
6471 	uint8_t		chan;
6472 	uint32_t	err_id;
6473 	err_inject_t	*eip;
6474 
6475 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_err_inject"));
6476 
6477 	size = 1024;
6478 	nmp = mp->b_cont;
6479 	eip = (err_inject_t *)nmp->b_rptr;
6480 	blk_id = eip->blk_id;
6481 	err_id = eip->err_id;
6482 	chan = eip->chan;
6483 	cmn_err(CE_NOTE, "!blk_id = 0x%x\n", blk_id);
6484 	cmn_err(CE_NOTE, "!err_id = 0x%x\n", err_id);
6485 	cmn_err(CE_NOTE, "!chan = 0x%x\n", chan);
6486 	switch (blk_id) {
6487 	case MAC_BLK_ID:
6488 		break;
6489 	case TXMAC_BLK_ID:
6490 		break;
6491 	case RXMAC_BLK_ID:
6492 		break;
6493 	case MIF_BLK_ID:
6494 		break;
6495 	case IPP_BLK_ID:
6496 		nxge_ipp_inject_err(nxgep, err_id);
6497 		break;
6498 	case TXC_BLK_ID:
6499 		nxge_txc_inject_err(nxgep, err_id);
6500 		break;
6501 	case TXDMA_BLK_ID:
6502 		nxge_txdma_inject_err(nxgep, err_id, chan);
6503 		break;
6504 	case RXDMA_BLK_ID:
6505 		nxge_rxdma_inject_err(nxgep, err_id, chan);
6506 		break;
6507 	case ZCP_BLK_ID:
6508 		nxge_zcp_inject_err(nxgep, err_id);
6509 		break;
6510 	case ESPC_BLK_ID:
6511 		break;
6512 	case FFLP_BLK_ID:
6513 		break;
6514 	case PHY_BLK_ID:
6515 		break;
6516 	case ETHER_SERDES_BLK_ID:
6517 		break;
6518 	case PCIE_SERDES_BLK_ID:
6519 		break;
6520 	case VIR_BLK_ID:
6521 		break;
6522 	}
6523 
6524 	nmp->b_wptr = nmp->b_rptr + size;
6525 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "<== nxge_err_inject"));
6526 
6527 	miocack(wq, mp, (int)size, 0);
6528 }
6529 
6530 static int
6531 nxge_init_common_dev(p_nxge_t nxgep)
6532 {
6533 	p_nxge_hw_list_t	hw_p;
6534 	dev_info_t 		*p_dip;
6535 
6536 	ASSERT(nxgep != NULL);
6537 
6538 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_init_common_device"));
6539 
6540 	p_dip = nxgep->p_dip;
6541 	MUTEX_ENTER(&nxge_common_lock);
6542 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6543 	    "==> nxge_init_common_dev:func # %d",
6544 	    nxgep->function_num));
6545 	/*
6546 	 * Loop through existing per neptune hardware list.
6547 	 */
6548 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6549 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6550 		    "==> nxge_init_common_device:func # %d "
6551 		    "hw_p $%p parent dip $%p",
6552 		    nxgep->function_num,
6553 		    hw_p,
6554 		    p_dip));
6555 		if (hw_p->parent_devp == p_dip) {
6556 			nxgep->nxge_hw_p = hw_p;
6557 			hw_p->ndevs++;
6558 			hw_p->nxge_p[nxgep->function_num] = nxgep;
6559 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6560 			    "==> nxge_init_common_device:func # %d "
6561 			    "hw_p $%p parent dip $%p "
6562 			    "ndevs %d (found)",
6563 			    nxgep->function_num,
6564 			    hw_p,
6565 			    p_dip,
6566 			    hw_p->ndevs));
6567 			break;
6568 		}
6569 	}
6570 
6571 	if (hw_p == NULL) {
6572 
6573 		char **prop_val;
6574 		uint_t prop_len;
6575 		int i;
6576 
6577 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6578 		    "==> nxge_init_common_device:func # %d "
6579 		    "parent dip $%p (new)",
6580 		    nxgep->function_num,
6581 		    p_dip));
6582 		hw_p = kmem_zalloc(sizeof (nxge_hw_list_t), KM_SLEEP);
6583 		hw_p->parent_devp = p_dip;
6584 		hw_p->magic = NXGE_NEPTUNE_MAGIC;
6585 		nxgep->nxge_hw_p = hw_p;
6586 		hw_p->ndevs++;
6587 		hw_p->nxge_p[nxgep->function_num] = nxgep;
6588 		hw_p->next = nxge_hw_list;
6589 		if (nxgep->niu_type == N2_NIU) {
6590 			hw_p->niu_type = N2_NIU;
6591 			hw_p->platform_type = P_NEPTUNE_NIU;
6592 		} else {
6593 			hw_p->niu_type = NIU_TYPE_NONE;
6594 			hw_p->platform_type = P_NEPTUNE_NONE;
6595 		}
6596 
6597 		MUTEX_INIT(&hw_p->nxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
6598 		MUTEX_INIT(&hw_p->nxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
6599 		MUTEX_INIT(&hw_p->nxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
6600 		MUTEX_INIT(&hw_p->nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
6601 
6602 		nxge_hw_list = hw_p;
6603 
6604 		if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, nxgep->dip, 0,
6605 		    "compatible", &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
6606 			for (i = 0; i < prop_len; i++) {
6607 				if ((strcmp((caddr_t)prop_val[i],
6608 				    NXGE_ROCK_COMPATIBLE) == 0)) {
6609 					hw_p->platform_type = P_NEPTUNE_ROCK;
6610 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6611 					    "ROCK hw_p->platform_type %d",
6612 					    hw_p->platform_type));
6613 					break;
6614 				}
6615 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6616 				    "nxge_init_common_dev: read compatible"
6617 				    " property[%d] val[%s]",
6618 				    i, (caddr_t)prop_val[i]));
6619 			}
6620 		}
6621 
6622 		ddi_prop_free(prop_val);
6623 
6624 		(void) nxge_scan_ports_phy(nxgep, nxge_hw_list);
6625 	}
6626 
6627 	MUTEX_EXIT(&nxge_common_lock);
6628 
6629 	nxgep->platform_type = hw_p->platform_type;
6630 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "nxgep->platform_type %d",
6631 	    nxgep->platform_type));
6632 	if (nxgep->niu_type != N2_NIU) {
6633 		nxgep->niu_type = hw_p->niu_type;
6634 	}
6635 
6636 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6637 	    "==> nxge_init_common_device (nxge_hw_list) $%p",
6638 	    nxge_hw_list));
6639 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<== nxge_init_common_device"));
6640 
6641 	return (NXGE_OK);
6642 }
6643 
6644 static void
6645 nxge_uninit_common_dev(p_nxge_t nxgep)
6646 {
6647 	p_nxge_hw_list_t	hw_p, h_hw_p;
6648 	p_nxge_dma_pt_cfg_t	p_dma_cfgp;
6649 	p_nxge_hw_pt_cfg_t	p_cfgp;
6650 	dev_info_t 		*p_dip;
6651 
6652 	ASSERT(nxgep != NULL);
6653 
6654 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_uninit_common_device"));
6655 	if (nxgep->nxge_hw_p == NULL) {
6656 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6657 		    "<== nxge_uninit_common_device (no common)"));
6658 		return;
6659 	}
6660 
6661 	MUTEX_ENTER(&nxge_common_lock);
6662 	h_hw_p = nxge_hw_list;
6663 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6664 		p_dip = hw_p->parent_devp;
6665 		if (nxgep->nxge_hw_p == hw_p &&
6666 		    p_dip == nxgep->p_dip &&
6667 		    nxgep->nxge_hw_p->magic == NXGE_NEPTUNE_MAGIC &&
6668 		    hw_p->magic == NXGE_NEPTUNE_MAGIC) {
6669 
6670 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6671 			    "==> nxge_uninit_common_device:func # %d "
6672 			    "hw_p $%p parent dip $%p "
6673 			    "ndevs %d (found)",
6674 			    nxgep->function_num,
6675 			    hw_p,
6676 			    p_dip,
6677 			    hw_p->ndevs));
6678 
6679 			/*
6680 			 * Release the RDC table, a shared resoruce
6681 			 * of the nxge hardware.  The RDC table was
6682 			 * assigned to this instance of nxge in
6683 			 * nxge_use_cfg_dma_config().
6684 			 */
6685 			if (!isLDOMguest(nxgep)) {
6686 				p_dma_cfgp =
6687 				    (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
6688 				p_cfgp =
6689 				    (p_nxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
6690 				(void) nxge_fzc_rdc_tbl_unbind(nxgep,
6691 				    p_cfgp->def_mac_rxdma_grpid);
6692 
6693 				/* Cleanup any outstanding groups.  */
6694 				nxge_grp_cleanup(nxgep);
6695 			}
6696 
6697 			if (hw_p->ndevs) {
6698 				hw_p->ndevs--;
6699 			}
6700 			hw_p->nxge_p[nxgep->function_num] = NULL;
6701 			if (!hw_p->ndevs) {
6702 				MUTEX_DESTROY(&hw_p->nxge_vlan_lock);
6703 				MUTEX_DESTROY(&hw_p->nxge_tcam_lock);
6704 				MUTEX_DESTROY(&hw_p->nxge_cfg_lock);
6705 				MUTEX_DESTROY(&hw_p->nxge_mdio_lock);
6706 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6707 				    "==> nxge_uninit_common_device: "
6708 				    "func # %d "
6709 				    "hw_p $%p parent dip $%p "
6710 				    "ndevs %d (last)",
6711 				    nxgep->function_num,
6712 				    hw_p,
6713 				    p_dip,
6714 				    hw_p->ndevs));
6715 
6716 				nxge_hio_uninit(nxgep);
6717 
6718 				if (hw_p == nxge_hw_list) {
6719 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6720 					    "==> nxge_uninit_common_device:"
6721 					    "remove head func # %d "
6722 					    "hw_p $%p parent dip $%p "
6723 					    "ndevs %d (head)",
6724 					    nxgep->function_num,
6725 					    hw_p,
6726 					    p_dip,
6727 					    hw_p->ndevs));
6728 					nxge_hw_list = hw_p->next;
6729 				} else {
6730 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6731 					    "==> nxge_uninit_common_device:"
6732 					    "remove middle func # %d "
6733 					    "hw_p $%p parent dip $%p "
6734 					    "ndevs %d (middle)",
6735 					    nxgep->function_num,
6736 					    hw_p,
6737 					    p_dip,
6738 					    hw_p->ndevs));
6739 					h_hw_p->next = hw_p->next;
6740 				}
6741 
6742 				nxgep->nxge_hw_p = NULL;
6743 				KMEM_FREE(hw_p, sizeof (nxge_hw_list_t));
6744 			}
6745 			break;
6746 		} else {
6747 			h_hw_p = hw_p;
6748 		}
6749 	}
6750 
6751 	MUTEX_EXIT(&nxge_common_lock);
6752 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6753 	    "==> nxge_uninit_common_device (nxge_hw_list) $%p",
6754 	    nxge_hw_list));
6755 
6756 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<= nxge_uninit_common_device"));
6757 }
6758 
6759 /*
6760  * Determines the number of ports from the niu_type or the platform type.
6761  * Returns the number of ports, or returns zero on failure.
6762  */
6763 
6764 int
6765 nxge_get_nports(p_nxge_t nxgep)
6766 {
6767 	int	nports = 0;
6768 
6769 	switch (nxgep->niu_type) {
6770 	case N2_NIU:
6771 	case NEPTUNE_2_10GF:
6772 		nports = 2;
6773 		break;
6774 	case NEPTUNE_4_1GC:
6775 	case NEPTUNE_2_10GF_2_1GC:
6776 	case NEPTUNE_1_10GF_3_1GC:
6777 	case NEPTUNE_1_1GC_1_10GF_2_1GC:
6778 	case NEPTUNE_2_10GF_2_1GRF:
6779 		nports = 4;
6780 		break;
6781 	default:
6782 		switch (nxgep->platform_type) {
6783 		case P_NEPTUNE_NIU:
6784 		case P_NEPTUNE_ATLAS_2PORT:
6785 			nports = 2;
6786 			break;
6787 		case P_NEPTUNE_ATLAS_4PORT:
6788 		case P_NEPTUNE_MARAMBA_P0:
6789 		case P_NEPTUNE_MARAMBA_P1:
6790 		case P_NEPTUNE_ROCK:
6791 		case P_NEPTUNE_ALONSO:
6792 			nports = 4;
6793 			break;
6794 		default:
6795 			break;
6796 		}
6797 		break;
6798 	}
6799 
6800 	return (nports);
6801 }
6802 
6803 /*
6804  * The following two functions are to support
6805  * PSARC/2007/453 MSI-X interrupt limit override.
6806  */
6807 static int
6808 nxge_create_msi_property(p_nxge_t nxgep)
6809 {
6810 	int	nmsi;
6811 	extern	int ncpus;
6812 
6813 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==>nxge_create_msi_property"));
6814 
6815 	switch (nxgep->mac.portmode) {
6816 	case PORT_10G_COPPER:
6817 	case PORT_10G_FIBER:
6818 	case PORT_10G_TN1010:
6819 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6820 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6821 		/*
6822 		 * The maximum MSI-X requested will be 8.
6823 		 * If the # of CPUs is less than 8, we will request
6824 		 * # MSI-X based on the # of CPUs (default).
6825 		 */
6826 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6827 		    "==>nxge_create_msi_property (10G): nxge_msix_10g_intrs %d",
6828 		    nxge_msix_10g_intrs));
6829 		if ((nxge_msix_10g_intrs == 0) ||
6830 		    (nxge_msix_10g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6831 			nmsi = NXGE_MSIX_REQUEST_10G;
6832 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6833 			    "==>nxge_create_msi_property (10G): reset to 8"));
6834 		} else {
6835 			nmsi = nxge_msix_10g_intrs;
6836 		}
6837 
6838 		/*
6839 		 * If # of interrupts requested is 8 (default),
6840 		 * the checking of the number of cpus will be
6841 		 * be maintained.
6842 		 */
6843 		if ((nmsi == NXGE_MSIX_REQUEST_10G) &&
6844 		    (ncpus < nmsi)) {
6845 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6846 			    "==>nxge_create_msi_property (10G): reset to 8"));
6847 			nmsi = ncpus;
6848 		}
6849 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6850 		    "==>nxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
6851 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6852 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6853 		break;
6854 
6855 	default:
6856 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6857 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6858 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6859 		    "==>nxge_create_msi_property (1G): nxge_msix_1g_intrs %d",
6860 		    nxge_msix_1g_intrs));
6861 		if ((nxge_msix_1g_intrs == 0) ||
6862 		    (nxge_msix_1g_intrs > NXGE_MSIX_MAX_ALLOWED)) {
6863 			nmsi = NXGE_MSIX_REQUEST_1G;
6864 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6865 			    "==>nxge_create_msi_property (1G): reset to 2"));
6866 		} else {
6867 			nmsi = nxge_msix_1g_intrs;
6868 		}
6869 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6870 		    "==>nxge_create_msi_property(1G): exists 0x%x (nmsi %d)",
6871 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6872 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6873 		break;
6874 	}
6875 
6876 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<==nxge_create_msi_property"));
6877 	return (nmsi);
6878 }
6879 
6880 /* ARGSUSED */
6881 static int
6882 nxge_get_def_val(nxge_t *nxgep, mac_prop_id_t pr_num, uint_t pr_valsize,
6883     void *pr_val)
6884 {
6885 	int err = 0;
6886 	link_flowctrl_t fl;
6887 
6888 	switch (pr_num) {
6889 	case MAC_PROP_AUTONEG:
6890 		*(uint8_t *)pr_val = 1;
6891 		break;
6892 	case MAC_PROP_FLOWCTRL:
6893 		if (pr_valsize < sizeof (link_flowctrl_t))
6894 			return (EINVAL);
6895 		fl = LINK_FLOWCTRL_RX;
6896 		bcopy(&fl, pr_val, sizeof (fl));
6897 		break;
6898 	case MAC_PROP_ADV_1000FDX_CAP:
6899 	case MAC_PROP_EN_1000FDX_CAP:
6900 		*(uint8_t *)pr_val = 1;
6901 		break;
6902 	case MAC_PROP_ADV_100FDX_CAP:
6903 	case MAC_PROP_EN_100FDX_CAP:
6904 		*(uint8_t *)pr_val = 1;
6905 		break;
6906 	default:
6907 		err = ENOTSUP;
6908 		break;
6909 	}
6910 	return (err);
6911 }
6912 
6913 
6914 /*
6915  * The following is a software around for the Neptune hardware's
6916  * interrupt bugs; The Neptune hardware may generate spurious interrupts when
6917  * an interrupr handler is removed.
6918  */
6919 #define	NXGE_PCI_PORT_LOGIC_OFFSET	0x98
6920 #define	NXGE_PIM_RESET			(1ULL << 29)
6921 #define	NXGE_GLU_RESET			(1ULL << 30)
6922 #define	NXGE_NIU_RESET			(1ULL << 31)
6923 #define	NXGE_PCI_RESET_ALL		(NXGE_PIM_RESET |	\
6924 					NXGE_GLU_RESET |	\
6925 					NXGE_NIU_RESET)
6926 
6927 #define	NXGE_WAIT_QUITE_TIME		200000
6928 #define	NXGE_WAIT_QUITE_RETRY		40
6929 #define	NXGE_PCI_RESET_WAIT		1000000 /* one second */
6930 
6931 static void
6932 nxge_niu_peu_reset(p_nxge_t nxgep)
6933 {
6934 	uint32_t	rvalue;
6935 	p_nxge_hw_list_t hw_p;
6936 	p_nxge_t	fnxgep;
6937 	int		i, j;
6938 
6939 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_niu_peu_reset"));
6940 	if ((hw_p = nxgep->nxge_hw_p) == NULL) {
6941 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6942 		    "==> nxge_niu_peu_reset: NULL hardware pointer"));
6943 		return;
6944 	}
6945 
6946 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6947 	    "==> nxge_niu_peu_reset: flags 0x%x link timer id %d timer id %d",
6948 	    hw_p->flags, nxgep->nxge_link_poll_timerid,
6949 	    nxgep->nxge_timerid));
6950 
6951 	MUTEX_ENTER(&hw_p->nxge_cfg_lock);
6952 	/*
6953 	 * Make sure other instances from the same hardware
6954 	 * stop sending PIO and in quiescent state.
6955 	 */
6956 	for (i = 0; i < NXGE_MAX_PORTS; i++) {
6957 		fnxgep = hw_p->nxge_p[i];
6958 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6959 		    "==> nxge_niu_peu_reset: checking entry %d "
6960 		    "nxgep $%p", i, fnxgep));
6961 #ifdef	NXGE_DEBUG
6962 		if (fnxgep) {
6963 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6964 			    "==> nxge_niu_peu_reset: entry %d (function %d) "
6965 			    "link timer id %d hw timer id %d",
6966 			    i, fnxgep->function_num,
6967 			    fnxgep->nxge_link_poll_timerid,
6968 			    fnxgep->nxge_timerid));
6969 		}
6970 #endif
6971 		if (fnxgep && fnxgep != nxgep &&
6972 		    (fnxgep->nxge_timerid || fnxgep->nxge_link_poll_timerid)) {
6973 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6974 			    "==> nxge_niu_peu_reset: checking $%p "
6975 			    "(function %d) timer ids",
6976 			    fnxgep, fnxgep->function_num));
6977 			for (j = 0; j < NXGE_WAIT_QUITE_RETRY; j++) {
6978 				NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6979 				    "==> nxge_niu_peu_reset: waiting"));
6980 				NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6981 				if (!fnxgep->nxge_timerid &&
6982 				    !fnxgep->nxge_link_poll_timerid) {
6983 					break;
6984 				}
6985 			}
6986 			NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6987 			if (fnxgep->nxge_timerid ||
6988 			    fnxgep->nxge_link_poll_timerid) {
6989 				MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6990 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6991 				    "<== nxge_niu_peu_reset: cannot reset "
6992 				    "hardware (devices are still in use)"));
6993 				return;
6994 			}
6995 		}
6996 	}
6997 
6998 	if ((hw_p->flags & COMMON_RESET_NIU_PCI) != COMMON_RESET_NIU_PCI) {
6999 		hw_p->flags |= COMMON_RESET_NIU_PCI;
7000 		rvalue = pci_config_get32(nxgep->dev_regs->nxge_pciregh,
7001 		    NXGE_PCI_PORT_LOGIC_OFFSET);
7002 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7003 		    "nxge_niu_peu_reset: read offset 0x%x (%d) "
7004 		    "(data 0x%x)",
7005 		    NXGE_PCI_PORT_LOGIC_OFFSET,
7006 		    NXGE_PCI_PORT_LOGIC_OFFSET,
7007 		    rvalue));
7008 
7009 		rvalue |= NXGE_PCI_RESET_ALL;
7010 		pci_config_put32(nxgep->dev_regs->nxge_pciregh,
7011 		    NXGE_PCI_PORT_LOGIC_OFFSET, rvalue);
7012 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
7013 		    "nxge_niu_peu_reset: RESETTING NIU: write NIU reset 0x%x",
7014 		    rvalue));
7015 
7016 		NXGE_DELAY(NXGE_PCI_RESET_WAIT);
7017 	}
7018 
7019 	MUTEX_EXIT(&hw_p->nxge_cfg_lock);
7020 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_niu_peu_reset"));
7021 }
7022 
7023 static void
7024 nxge_set_pci_replay_timeout(p_nxge_t nxgep)
7025 {
7026 	p_dev_regs_t	dev_regs;
7027 	uint32_t	value;
7028 
7029 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_set_pci_replay_timeout"));
7030 
7031 	if (!nxge_set_replay_timer) {
7032 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7033 		    "==> nxge_set_pci_replay_timeout: will not change "
7034 		    "the timeout"));
7035 		return;
7036 	}
7037 
7038 	dev_regs = nxgep->dev_regs;
7039 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7040 	    "==> nxge_set_pci_replay_timeout: dev_regs 0x%p pcireg 0x%p",
7041 	    dev_regs, dev_regs->nxge_pciregh));
7042 
7043 	if (dev_regs == NULL || (dev_regs->nxge_pciregh == NULL)) {
7044 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7045 		    "==> nxge_set_pci_replay_timeout: NULL dev_regs $%p or "
7046 		    "no PCI handle",
7047 		    dev_regs));
7048 		return;
7049 	}
7050 	value = (pci_config_get32(dev_regs->nxge_pciregh,
7051 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET) |
7052 	    (nxge_replay_timeout << PCI_REPLAY_TIMEOUT_SHIFT));
7053 
7054 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7055 	    "nxge_set_pci_replay_timeout: replay timeout value before set 0x%x "
7056 	    "(timeout value to set 0x%x at offset 0x%x) value 0x%x",
7057 	    pci_config_get32(dev_regs->nxge_pciregh,
7058 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET), nxge_replay_timeout,
7059 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET, value));
7060 
7061 	pci_config_put32(dev_regs->nxge_pciregh, PCI_REPLAY_TIMEOUT_CFG_OFFSET,
7062 	    value);
7063 
7064 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
7065 	    "nxge_set_pci_replay_timeout: replay timeout value after set 0x%x",
7066 	    pci_config_get32(dev_regs->nxge_pciregh,
7067 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET)));
7068 
7069 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_set_pci_replay_timeout"));
7070 }
7071 
7072 /*
7073  * quiesce(9E) entry point.
7074  *
7075  * This function is called when the system is single-threaded at high
7076  * PIL with preemption disabled. Therefore, this function must not be
7077  * blocked.
7078  *
7079  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
7080  * DDI_FAILURE indicates an error condition and should almost never happen.
7081  */
7082 static int
7083 nxge_quiesce(dev_info_t *dip)
7084 {
7085 	int instance = ddi_get_instance(dip);
7086 	p_nxge_t nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
7087 
7088 	if (nxgep == NULL)
7089 		return (DDI_FAILURE);
7090 
7091 	/* Turn off debugging */
7092 	nxge_debug_level = NO_DEBUG;
7093 	nxgep->nxge_debug_level = NO_DEBUG;
7094 	npi_debug_level = NO_DEBUG;
7095 
7096 	/*
7097 	 * Stop link monitor only when linkchkmod is interrupt based
7098 	 */
7099 	if (nxgep->mac.linkchkmode == LINKCHK_INTR) {
7100 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
7101 	}
7102 
7103 	(void) nxge_intr_hw_disable(nxgep);
7104 
7105 	/*
7106 	 * Reset the receive MAC side.
7107 	 */
7108 	(void) nxge_rx_mac_disable(nxgep);
7109 
7110 	/* Disable and soft reset the IPP */
7111 	if (!isLDOMguest(nxgep))
7112 		(void) nxge_ipp_disable(nxgep);
7113 
7114 	/*
7115 	 * Reset the transmit/receive DMA side.
7116 	 */
7117 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
7118 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
7119 
7120 	/*
7121 	 * Reset the transmit MAC side.
7122 	 */
7123 	(void) nxge_tx_mac_disable(nxgep);
7124 
7125 	return (DDI_SUCCESS);
7126 }
7127