xref: /illumos-gate/usr/src/uts/common/io/nxge/nxge_main.c (revision 9b4e3ac25d882519cad3fc11f0c53b07f4e60536)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * SunOs MT STREAMS NIU/Neptune 10Gb Ethernet Device Driver.
28  */
29 #include	<sys/nxge/nxge_impl.h>
30 #include	<sys/nxge/nxge_hio.h>
31 #include	<sys/nxge/nxge_rxdma.h>
32 #include	<sys/pcie.h>
33 
34 uint32_t 	nxge_use_partition = 0;		/* debug partition flag */
35 uint32_t 	nxge_dma_obp_props_only = 1;	/* use obp published props */
36 uint32_t 	nxge_use_rdc_intr = 1;		/* debug to assign rdc intr */
37 /*
38  * PSARC/2007/453 MSI-X interrupt limit override
39  * (This PSARC case is limited to MSI-X vectors
40  *  and SPARC platforms only).
41  */
42 #if defined(_BIG_ENDIAN)
43 uint32_t	nxge_msi_enable = 2;
44 #else
45 uint32_t	nxge_msi_enable = 1;
46 #endif
47 
48 /*
49  * Software workaround for a Neptune (PCI-E)
50  * hardware interrupt bug which the hardware
51  * may generate spurious interrupts after the
52  * device interrupt handler was removed. If this flag
53  * is enabled, the driver will reset the
54  * hardware when devices are being detached.
55  */
56 uint32_t	nxge_peu_reset_enable = 0;
57 
58 /*
59  * Software workaround for the hardware
60  * checksum bugs that affect packet transmission
61  * and receive:
62  *
63  * Usage of nxge_cksum_offload:
64  *
65  *  (1) nxge_cksum_offload = 0 (default):
66  *	- transmits packets:
67  *	  TCP: uses the hardware checksum feature.
68  *	  UDP: driver will compute the software checksum
69  *	       based on the partial checksum computed
70  *	       by the IP layer.
71  *	- receives packets
72  *	  TCP: marks packets checksum flags based on hardware result.
73  *	  UDP: will not mark checksum flags.
74  *
75  *  (2) nxge_cksum_offload = 1:
76  *	- transmit packets:
77  *	  TCP/UDP: uses the hardware checksum feature.
78  *	- receives packets
79  *	  TCP/UDP: marks packet checksum flags based on hardware result.
80  *
81  *  (3) nxge_cksum_offload = 2:
82  *	- The driver will not register its checksum capability.
83  *	  Checksum for both TCP and UDP will be computed
84  *	  by the stack.
85  *	- The software LSO is not allowed in this case.
86  *
87  *  (4) nxge_cksum_offload > 2:
88  *	- Will be treated as it is set to 2
89  *	  (stack will compute the checksum).
90  *
91  *  (5) If the hardware bug is fixed, this workaround
92  *	needs to be updated accordingly to reflect
93  *	the new hardware revision.
94  */
95 uint32_t	nxge_cksum_offload = 0;
96 
97 /*
98  * Globals: tunable parameters (/etc/system or adb)
99  *
100  */
101 uint32_t 	nxge_rbr_size = NXGE_RBR_RBB_DEFAULT;
102 uint32_t 	nxge_rbr_spare_size = 0;
103 uint32_t 	nxge_rcr_size = NXGE_RCR_DEFAULT;
104 uint32_t 	nxge_tx_ring_size = NXGE_TX_RING_DEFAULT;
105 boolean_t 	nxge_no_msg = B_TRUE;		/* control message display */
106 uint32_t 	nxge_no_link_notify = 0;	/* control DL_NOTIFY */
107 uint32_t 	nxge_bcopy_thresh = TX_BCOPY_MAX;
108 uint32_t 	nxge_dvma_thresh = TX_FASTDVMA_MIN;
109 uint32_t 	nxge_dma_stream_thresh = TX_STREAM_MIN;
110 uint32_t	nxge_jumbo_mtu	= TX_JUMBO_MTU;
111 boolean_t	nxge_jumbo_enable = B_FALSE;
112 uint16_t	nxge_rcr_timeout = NXGE_RDC_RCR_TIMEOUT;
113 uint16_t	nxge_rcr_threshold = NXGE_RDC_RCR_THRESHOLD;
114 nxge_tx_mode_t	nxge_tx_scheme = NXGE_USE_SERIAL;
115 
116 /* MAX LSO size */
117 #define		NXGE_LSO_MAXLEN	65535
118 uint32_t	nxge_lso_max = NXGE_LSO_MAXLEN;
119 
120 
121 /*
122  * Add tunable to reduce the amount of time spent in the
123  * ISR doing Rx Processing.
124  */
125 uint32_t nxge_max_rx_pkts = 1024;
126 
127 /*
128  * Tunables to manage the receive buffer blocks.
129  *
130  * nxge_rx_threshold_hi: copy all buffers.
131  * nxge_rx_bcopy_size_type: receive buffer block size type.
132  * nxge_rx_threshold_lo: copy only up to tunable block size type.
133  */
134 nxge_rxbuf_threshold_t nxge_rx_threshold_hi = NXGE_RX_COPY_6;
135 nxge_rxbuf_type_t nxge_rx_buf_size_type = RCR_PKTBUFSZ_0;
136 nxge_rxbuf_threshold_t nxge_rx_threshold_lo = NXGE_RX_COPY_3;
137 
138 /* Use kmem_alloc() to allocate data buffers. */
139 #if defined(_BIG_ENDIAN)
140 uint32_t	nxge_use_kmem_alloc = 1;
141 #else
142 uint32_t	nxge_use_kmem_alloc = 0;
143 #endif
144 
145 rtrace_t npi_rtracebuf;
146 
147 /*
148  * The hardware sometimes fails to allow enough time for the link partner
149  * to send an acknowledgement for packets that the hardware sent to it. The
150  * hardware resends the packets earlier than it should be in those instances.
151  * This behavior caused some switches to acknowledge the wrong packets
152  * and it triggered the fatal error.
153  * This software workaround is to set the replay timer to a value
154  * suggested by the hardware team.
155  *
156  * PCI config space replay timer register:
157  *     The following replay timeout value is 0xc
158  *     for bit 14:18.
159  */
160 #define	PCI_REPLAY_TIMEOUT_CFG_OFFSET	0xb8
161 #define	PCI_REPLAY_TIMEOUT_SHIFT	14
162 
163 uint32_t	nxge_set_replay_timer = 1;
164 uint32_t	nxge_replay_timeout = 0xc;
165 
166 /*
167  * The transmit serialization sometimes causes
168  * longer sleep before calling the driver transmit
169  * function as it sleeps longer than it should.
170  * The performace group suggests that a time wait tunable
171  * can be used to set the maximum wait time when needed
172  * and the default is set to 1 tick.
173  */
174 uint32_t	nxge_tx_serial_maxsleep = 1;
175 
176 #if	defined(sun4v)
177 /*
178  * Hypervisor N2/NIU services information.
179  */
180 static hsvc_info_t niu_hsvc = {
181 	HSVC_REV_1, NULL, HSVC_GROUP_NIU, NIU_MAJOR_VER,
182 	NIU_MINOR_VER, "nxge"
183 };
184 
185 static int nxge_hsvc_register(p_nxge_t);
186 #endif
187 
188 /*
189  * Function Prototypes
190  */
191 static int nxge_attach(dev_info_t *, ddi_attach_cmd_t);
192 static int nxge_detach(dev_info_t *, ddi_detach_cmd_t);
193 static void nxge_unattach(p_nxge_t);
194 static int nxge_quiesce(dev_info_t *);
195 
196 #if NXGE_PROPERTY
197 static void nxge_remove_hard_properties(p_nxge_t);
198 #endif
199 
200 /*
201  * These two functions are required by nxge_hio.c
202  */
203 extern int nxge_m_mmac_remove(void *arg, int slot);
204 extern void nxge_grp_cleanup(p_nxge_t nxge);
205 
206 static nxge_status_t nxge_setup_system_dma_pages(p_nxge_t);
207 
208 static nxge_status_t nxge_setup_mutexes(p_nxge_t);
209 static void nxge_destroy_mutexes(p_nxge_t);
210 
211 static nxge_status_t nxge_map_regs(p_nxge_t nxgep);
212 static void nxge_unmap_regs(p_nxge_t nxgep);
213 #ifdef	NXGE_DEBUG
214 static void nxge_test_map_regs(p_nxge_t nxgep);
215 #endif
216 
217 static nxge_status_t nxge_add_intrs(p_nxge_t nxgep);
218 static void nxge_remove_intrs(p_nxge_t nxgep);
219 
220 static nxge_status_t nxge_add_intrs_adv(p_nxge_t nxgep);
221 static nxge_status_t nxge_add_intrs_adv_type(p_nxge_t, uint32_t);
222 static nxge_status_t nxge_add_intrs_adv_type_fix(p_nxge_t, uint32_t);
223 static void nxge_intrs_enable(p_nxge_t nxgep);
224 static void nxge_intrs_disable(p_nxge_t nxgep);
225 
226 static void nxge_suspend(p_nxge_t);
227 static nxge_status_t nxge_resume(p_nxge_t);
228 
229 static nxge_status_t nxge_setup_dev(p_nxge_t);
230 static void nxge_destroy_dev(p_nxge_t);
231 
232 static nxge_status_t nxge_alloc_mem_pool(p_nxge_t);
233 static void nxge_free_mem_pool(p_nxge_t);
234 
235 nxge_status_t nxge_alloc_rx_mem_pool(p_nxge_t);
236 static void nxge_free_rx_mem_pool(p_nxge_t);
237 
238 nxge_status_t nxge_alloc_tx_mem_pool(p_nxge_t);
239 static void nxge_free_tx_mem_pool(p_nxge_t);
240 
241 static nxge_status_t nxge_dma_mem_alloc(p_nxge_t, dma_method_t,
242 	struct ddi_dma_attr *,
243 	size_t, ddi_device_acc_attr_t *, uint_t,
244 	p_nxge_dma_common_t);
245 
246 static void nxge_dma_mem_free(p_nxge_dma_common_t);
247 static void nxge_dma_free_rx_data_buf(p_nxge_dma_common_t);
248 
249 static nxge_status_t nxge_alloc_rx_buf_dma(p_nxge_t, uint16_t,
250 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
251 static void nxge_free_rx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
252 
253 static nxge_status_t nxge_alloc_rx_cntl_dma(p_nxge_t, uint16_t,
254 	p_nxge_dma_common_t *, size_t);
255 static void nxge_free_rx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
256 
257 extern nxge_status_t nxge_alloc_tx_buf_dma(p_nxge_t, uint16_t,
258 	p_nxge_dma_common_t *, size_t, size_t, uint32_t *);
259 static void nxge_free_tx_buf_dma(p_nxge_t, p_nxge_dma_common_t, uint32_t);
260 
261 extern nxge_status_t nxge_alloc_tx_cntl_dma(p_nxge_t, uint16_t,
262 	p_nxge_dma_common_t *,
263 	size_t);
264 static void nxge_free_tx_cntl_dma(p_nxge_t, p_nxge_dma_common_t);
265 
266 static int nxge_init_common_dev(p_nxge_t);
267 static void nxge_uninit_common_dev(p_nxge_t);
268 extern int nxge_param_set_mac(p_nxge_t, queue_t *, mblk_t *,
269     char *, caddr_t);
270 
271 /*
272  * The next declarations are for the GLDv3 interface.
273  */
274 static int nxge_m_start(void *);
275 static void nxge_m_stop(void *);
276 static int nxge_m_multicst(void *, boolean_t, const uint8_t *);
277 static int nxge_m_promisc(void *, boolean_t);
278 static void nxge_m_ioctl(void *, queue_t *, mblk_t *);
279 static nxge_status_t nxge_mac_register(p_nxge_t);
280 static int nxge_altmac_set(p_nxge_t nxgep, uint8_t *mac_addr,
281 	int slot, int rdctbl, boolean_t usetbl);
282 void nxge_mmac_kstat_update(p_nxge_t nxgep, int slot,
283 	boolean_t factory);
284 #if defined(sun4v)
285 extern mblk_t *nxge_m_tx(void *arg, mblk_t *mp);
286 #endif
287 
288 static void nxge_m_getfactaddr(void *, uint_t, uint8_t *);
289 static	boolean_t nxge_m_getcapab(void *, mac_capab_t, void *);
290 static int nxge_m_setprop(void *, const char *, mac_prop_id_t,
291     uint_t, const void *);
292 static int nxge_m_getprop(void *, const char *, mac_prop_id_t,
293     uint_t, uint_t, void *, uint_t *);
294 static int nxge_set_priv_prop(nxge_t *, const char *, uint_t,
295     const void *);
296 static int nxge_get_priv_prop(nxge_t *, const char *, uint_t, uint_t,
297     void *, uint_t *);
298 static int nxge_get_def_val(nxge_t *, mac_prop_id_t, uint_t, void *);
299 static void nxge_fill_ring(void *, mac_ring_type_t, const int, const int,
300     mac_ring_info_t *, mac_ring_handle_t);
301 static void nxge_group_add_ring(mac_group_driver_t, mac_ring_driver_t,
302     mac_ring_type_t);
303 static void nxge_group_rem_ring(mac_group_driver_t, mac_ring_driver_t,
304     mac_ring_type_t);
305 
306 static void nxge_niu_peu_reset(p_nxge_t nxgep);
307 static void nxge_set_pci_replay_timeout(nxge_t *);
308 
309 mac_priv_prop_t nxge_priv_props[] = {
310 	{"_adv_10gfdx_cap", MAC_PROP_PERM_RW},
311 	{"_adv_pause_cap", MAC_PROP_PERM_RW},
312 	{"_function_number", MAC_PROP_PERM_READ},
313 	{"_fw_version", MAC_PROP_PERM_READ},
314 	{"_port_mode", MAC_PROP_PERM_READ},
315 	{"_hot_swap_phy", MAC_PROP_PERM_READ},
316 	{"_accept_jumbo", MAC_PROP_PERM_RW},
317 	{"_rxdma_intr_time", MAC_PROP_PERM_RW},
318 	{"_rxdma_intr_pkts", MAC_PROP_PERM_RW},
319 	{"_class_opt_ipv4_tcp", MAC_PROP_PERM_RW},
320 	{"_class_opt_ipv4_udp", MAC_PROP_PERM_RW},
321 	{"_class_opt_ipv4_ah", MAC_PROP_PERM_RW},
322 	{"_class_opt_ipv4_sctp", MAC_PROP_PERM_RW},
323 	{"_class_opt_ipv6_tcp", MAC_PROP_PERM_RW},
324 	{"_class_opt_ipv6_udp", MAC_PROP_PERM_RW},
325 	{"_class_opt_ipv6_ah", MAC_PROP_PERM_RW},
326 	{"_class_opt_ipv6_sctp", MAC_PROP_PERM_RW},
327 	{"_soft_lso_enable", MAC_PROP_PERM_RW}
328 };
329 
330 #define	NXGE_MAX_PRIV_PROPS	\
331 	(sizeof (nxge_priv_props)/sizeof (mac_priv_prop_t))
332 
333 #define	NXGE_NEPTUNE_MAGIC	0x4E584745UL
334 #define	MAX_DUMP_SZ 256
335 
336 #define	NXGE_M_CALLBACK_FLAGS	\
337 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP)
338 
339 mac_callbacks_t nxge_m_callbacks = {
340 	NXGE_M_CALLBACK_FLAGS,
341 	nxge_m_stat,
342 	nxge_m_start,
343 	nxge_m_stop,
344 	nxge_m_promisc,
345 	nxge_m_multicst,
346 	NULL,
347 	NULL,
348 	nxge_m_ioctl,
349 	nxge_m_getcapab,
350 	NULL,
351 	NULL,
352 	nxge_m_setprop,
353 	nxge_m_getprop
354 };
355 
356 void
357 nxge_err_inject(p_nxge_t, queue_t *, mblk_t *);
358 
359 /* PSARC/2007/453 MSI-X interrupt limit override. */
360 #define	NXGE_MSIX_REQUEST_10G	8
361 #define	NXGE_MSIX_REQUEST_1G	2
362 static int nxge_create_msi_property(p_nxge_t);
363 
364 /*
365  * These global variables control the message
366  * output.
367  */
368 out_dbgmsg_t nxge_dbgmsg_out = DBG_CONSOLE | STR_LOG;
369 uint64_t nxge_debug_level;
370 
371 /*
372  * This list contains the instance structures for the Neptune
373  * devices present in the system. The lock exists to guarantee
374  * mutually exclusive access to the list.
375  */
376 void 			*nxge_list = NULL;
377 
378 void			*nxge_hw_list = NULL;
379 nxge_os_mutex_t 	nxge_common_lock;
380 
381 extern uint64_t 	npi_debug_level;
382 
383 extern nxge_status_t	nxge_ldgv_init(p_nxge_t, int *, int *);
384 extern nxge_status_t	nxge_ldgv_init_n2(p_nxge_t, int *, int *);
385 extern nxge_status_t	nxge_ldgv_uninit(p_nxge_t);
386 extern nxge_status_t	nxge_intr_ldgv_init(p_nxge_t);
387 extern void		nxge_fm_init(p_nxge_t,
388 					ddi_device_acc_attr_t *,
389 					ddi_device_acc_attr_t *,
390 					ddi_dma_attr_t *);
391 extern void		nxge_fm_fini(p_nxge_t);
392 extern npi_status_t	npi_mac_altaddr_disable(npi_handle_t, uint8_t, uint8_t);
393 
394 /*
395  * Count used to maintain the number of buffers being used
396  * by Neptune instances and loaned up to the upper layers.
397  */
398 uint32_t nxge_mblks_pending = 0;
399 
400 /*
401  * Device register access attributes for PIO.
402  */
403 static ddi_device_acc_attr_t nxge_dev_reg_acc_attr = {
404 	DDI_DEVICE_ATTR_V0,
405 	DDI_STRUCTURE_LE_ACC,
406 	DDI_STRICTORDER_ACC,
407 };
408 
409 /*
410  * Device descriptor access attributes for DMA.
411  */
412 static ddi_device_acc_attr_t nxge_dev_desc_dma_acc_attr = {
413 	DDI_DEVICE_ATTR_V0,
414 	DDI_STRUCTURE_LE_ACC,
415 	DDI_STRICTORDER_ACC
416 };
417 
418 /*
419  * Device buffer access attributes for DMA.
420  */
421 static ddi_device_acc_attr_t nxge_dev_buf_dma_acc_attr = {
422 	DDI_DEVICE_ATTR_V0,
423 	DDI_STRUCTURE_BE_ACC,
424 	DDI_STRICTORDER_ACC
425 };
426 
427 ddi_dma_attr_t nxge_desc_dma_attr = {
428 	DMA_ATTR_V0,		/* version number. */
429 	0,			/* low address */
430 	0xffffffffffffffff,	/* high address */
431 	0xffffffffffffffff,	/* address counter max */
432 #ifndef NIU_PA_WORKAROUND
433 	0x100000,		/* alignment */
434 #else
435 	0x2000,
436 #endif
437 	0xfc00fc,		/* dlim_burstsizes */
438 	0x1,			/* minimum transfer size */
439 	0xffffffffffffffff,	/* maximum transfer size */
440 	0xffffffffffffffff,	/* maximum segment size */
441 	1,			/* scatter/gather list length */
442 	(unsigned int) 1,	/* granularity */
443 	0			/* attribute flags */
444 };
445 
446 ddi_dma_attr_t nxge_tx_dma_attr = {
447 	DMA_ATTR_V0,		/* version number. */
448 	0,			/* low address */
449 	0xffffffffffffffff,	/* high address */
450 	0xffffffffffffffff,	/* address counter max */
451 #if defined(_BIG_ENDIAN)
452 	0x2000,			/* alignment */
453 #else
454 	0x1000,			/* alignment */
455 #endif
456 	0xfc00fc,		/* dlim_burstsizes */
457 	0x1,			/* minimum transfer size */
458 	0xffffffffffffffff,	/* maximum transfer size */
459 	0xffffffffffffffff,	/* maximum segment size */
460 	5,			/* scatter/gather list length */
461 	(unsigned int) 1,	/* granularity */
462 	0			/* attribute flags */
463 };
464 
465 ddi_dma_attr_t nxge_rx_dma_attr = {
466 	DMA_ATTR_V0,		/* version number. */
467 	0,			/* low address */
468 	0xffffffffffffffff,	/* high address */
469 	0xffffffffffffffff,	/* address counter max */
470 	0x2000,			/* alignment */
471 	0xfc00fc,		/* dlim_burstsizes */
472 	0x1,			/* minimum transfer size */
473 	0xffffffffffffffff,	/* maximum transfer size */
474 	0xffffffffffffffff,	/* maximum segment size */
475 	1,			/* scatter/gather list length */
476 	(unsigned int) 1,	/* granularity */
477 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
478 };
479 
480 ddi_dma_lim_t nxge_dma_limits = {
481 	(uint_t)0,		/* dlim_addr_lo */
482 	(uint_t)0xffffffff,	/* dlim_addr_hi */
483 	(uint_t)0xffffffff,	/* dlim_cntr_max */
484 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
485 	0x1,			/* dlim_minxfer */
486 	1024			/* dlim_speed */
487 };
488 
489 dma_method_t nxge_force_dma = DVMA;
490 
491 /*
492  * dma chunk sizes.
493  *
494  * Try to allocate the largest possible size
495  * so that fewer number of dma chunks would be managed
496  */
497 #ifdef NIU_PA_WORKAROUND
498 size_t alloc_sizes [] = {0x2000};
499 #else
500 size_t alloc_sizes [] = {0x1000, 0x2000, 0x4000, 0x8000,
501 		0x10000, 0x20000, 0x40000, 0x80000,
502 		0x100000, 0x200000, 0x400000, 0x800000,
503 		0x1000000, 0x2000000, 0x4000000};
504 #endif
505 
506 /*
507  * Translate "dev_t" to a pointer to the associated "dev_info_t".
508  */
509 
510 extern void nxge_get_environs(nxge_t *);
511 
512 static int
513 nxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
514 {
515 	p_nxge_t	nxgep = NULL;
516 	int		instance;
517 	int		status = DDI_SUCCESS;
518 	uint8_t		portn;
519 	nxge_mmac_t	*mmac_info;
520 	p_nxge_param_t	param_arr;
521 
522 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_attach"));
523 
524 	/*
525 	 * Get the device instance since we'll need to setup
526 	 * or retrieve a soft state for this instance.
527 	 */
528 	instance = ddi_get_instance(dip);
529 
530 	switch (cmd) {
531 	case DDI_ATTACH:
532 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_ATTACH"));
533 		break;
534 
535 	case DDI_RESUME:
536 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_RESUME"));
537 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
538 		if (nxgep == NULL) {
539 			status = DDI_FAILURE;
540 			break;
541 		}
542 		if (nxgep->dip != dip) {
543 			status = DDI_FAILURE;
544 			break;
545 		}
546 		if (nxgep->suspended == DDI_PM_SUSPEND) {
547 			status = ddi_dev_is_needed(nxgep->dip, 0, 1);
548 		} else {
549 			status = nxge_resume(nxgep);
550 		}
551 		goto nxge_attach_exit;
552 
553 	case DDI_PM_RESUME:
554 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_RESUME"));
555 		nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
556 		if (nxgep == NULL) {
557 			status = DDI_FAILURE;
558 			break;
559 		}
560 		if (nxgep->dip != dip) {
561 			status = DDI_FAILURE;
562 			break;
563 		}
564 		status = nxge_resume(nxgep);
565 		goto nxge_attach_exit;
566 
567 	default:
568 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing unknown"));
569 		status = DDI_FAILURE;
570 		goto nxge_attach_exit;
571 	}
572 
573 
574 	if (ddi_soft_state_zalloc(nxge_list, instance) == DDI_FAILURE) {
575 		status = DDI_FAILURE;
576 		goto nxge_attach_exit;
577 	}
578 
579 	nxgep = ddi_get_soft_state(nxge_list, instance);
580 	if (nxgep == NULL) {
581 		status = NXGE_ERROR;
582 		goto nxge_attach_fail2;
583 	}
584 
585 	nxgep->nxge_magic = NXGE_MAGIC;
586 
587 	nxgep->drv_state = 0;
588 	nxgep->dip = dip;
589 	nxgep->instance = instance;
590 	nxgep->p_dip = ddi_get_parent(dip);
591 	nxgep->nxge_debug_level = nxge_debug_level;
592 	npi_debug_level = nxge_debug_level;
593 
594 	/* Are we a guest running in a Hybrid I/O environment? */
595 	nxge_get_environs(nxgep);
596 
597 	status = nxge_map_regs(nxgep);
598 
599 	if (status != NXGE_OK) {
600 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_map_regs failed"));
601 		goto nxge_attach_fail3;
602 	}
603 
604 	nxge_fm_init(nxgep, &nxge_dev_reg_acc_attr,
605 	    &nxge_dev_desc_dma_acc_attr,
606 	    &nxge_rx_dma_attr);
607 
608 	/* Create & initialize the per-Neptune data structure */
609 	/* (even if we're a guest). */
610 	status = nxge_init_common_dev(nxgep);
611 	if (status != NXGE_OK) {
612 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
613 		    "nxge_init_common_dev failed"));
614 		goto nxge_attach_fail4;
615 	}
616 
617 	/*
618 	 * Software workaround: set the replay timer.
619 	 */
620 	if (nxgep->niu_type != N2_NIU) {
621 		nxge_set_pci_replay_timeout(nxgep);
622 	}
623 #if defined(sun4v)
624 	if (isLDOMguest(nxgep)) {
625 		nxge_m_callbacks.mc_tx = nxge_m_tx;
626 	}
627 #endif
628 
629 #if defined(sun4v)
630 	/* This is required by nxge_hio_init(), which follows. */
631 	if ((status = nxge_hsvc_register(nxgep)) != DDI_SUCCESS)
632 		goto nxge_attach_fail4;
633 #endif
634 
635 	if ((status = nxge_hio_init(nxgep)) != NXGE_OK) {
636 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
637 		    "nxge_hio_init failed"));
638 		goto nxge_attach_fail4;
639 	}
640 
641 	if (nxgep->niu_type == NEPTUNE_2_10GF) {
642 		if (nxgep->function_num > 1) {
643 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Unsupported"
644 			    " function %d. Only functions 0 and 1 are "
645 			    "supported for this card.", nxgep->function_num));
646 			status = NXGE_ERROR;
647 			goto nxge_attach_fail4;
648 		}
649 	}
650 
651 	if (isLDOMguest(nxgep)) {
652 		/*
653 		 * Use the function number here.
654 		 */
655 		nxgep->mac.portnum = nxgep->function_num;
656 		nxgep->mac.porttype = PORT_TYPE_LOGICAL;
657 
658 		/* XXX We'll set the MAC address counts to 1 for now. */
659 		mmac_info = &nxgep->nxge_mmac_info;
660 		mmac_info->num_mmac = 1;
661 		mmac_info->naddrfree = 1;
662 	} else {
663 		portn = NXGE_GET_PORT_NUM(nxgep->function_num);
664 		nxgep->mac.portnum = portn;
665 		if ((portn == 0) || (portn == 1))
666 			nxgep->mac.porttype = PORT_TYPE_XMAC;
667 		else
668 			nxgep->mac.porttype = PORT_TYPE_BMAC;
669 		/*
670 		 * Neptune has 4 ports, the first 2 ports use XMAC (10G MAC)
671 		 * internally, the rest 2 ports use BMAC (1G "Big" MAC).
672 		 * The two types of MACs have different characterizations.
673 		 */
674 		mmac_info = &nxgep->nxge_mmac_info;
675 		if (nxgep->function_num < 2) {
676 			mmac_info->num_mmac = XMAC_MAX_ALT_ADDR_ENTRY;
677 			mmac_info->naddrfree = XMAC_MAX_ALT_ADDR_ENTRY;
678 		} else {
679 			mmac_info->num_mmac = BMAC_MAX_ALT_ADDR_ENTRY;
680 			mmac_info->naddrfree = BMAC_MAX_ALT_ADDR_ENTRY;
681 		}
682 	}
683 	/*
684 	 * Setup the Ndd parameters for the this instance.
685 	 */
686 	nxge_init_param(nxgep);
687 
688 	/*
689 	 * Setup Register Tracing Buffer.
690 	 */
691 	npi_rtrace_buf_init((rtrace_t *)&npi_rtracebuf);
692 
693 	/* init stats ptr */
694 	nxge_init_statsp(nxgep);
695 
696 	/*
697 	 * Copy the vpd info from eeprom to a local data
698 	 * structure, and then check its validity.
699 	 */
700 	if (!isLDOMguest(nxgep)) {
701 		int *regp;
702 		uint_t reglen;
703 		int rv;
704 
705 		nxge_vpd_info_get(nxgep);
706 
707 		/* Find the NIU config handle. */
708 		rv = ddi_prop_lookup_int_array(DDI_DEV_T_ANY,
709 		    ddi_get_parent(nxgep->dip), DDI_PROP_DONTPASS,
710 		    "reg", &regp, &reglen);
711 
712 		if (rv != DDI_PROP_SUCCESS) {
713 			goto nxge_attach_fail5;
714 		}
715 		/*
716 		 * The address_hi, that is the first int, in the reg
717 		 * property consists of config handle, but need to remove
718 		 * the bits 28-31 which are OBP specific info.
719 		 */
720 		nxgep->niu_cfg_hdl = (*regp) & 0xFFFFFFF;
721 		ddi_prop_free(regp);
722 	}
723 
724 	if (isLDOMguest(nxgep)) {
725 		uchar_t *prop_val;
726 		uint_t prop_len;
727 		uint32_t max_frame_size;
728 
729 		extern void nxge_get_logical_props(p_nxge_t);
730 
731 		nxgep->statsp->mac_stats.xcvr_inuse = LOGICAL_XCVR;
732 		nxgep->mac.portmode = PORT_LOGICAL;
733 		(void) ddi_prop_update_string(DDI_DEV_T_NONE, nxgep->dip,
734 		    "phy-type", "virtual transceiver");
735 
736 		nxgep->nports = 1;
737 		nxgep->board_ver = 0;	/* XXX What? */
738 
739 		/*
740 		 * local-mac-address property gives us info on which
741 		 * specific MAC address the Hybrid resource is associated
742 		 * with.
743 		 */
744 		if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, nxgep->dip, 0,
745 		    "local-mac-address", &prop_val,
746 		    &prop_len) != DDI_PROP_SUCCESS) {
747 			goto nxge_attach_fail5;
748 		}
749 		if (prop_len !=  ETHERADDRL) {
750 			ddi_prop_free(prop_val);
751 			goto nxge_attach_fail5;
752 		}
753 		ether_copy(prop_val, nxgep->hio_mac_addr);
754 		ddi_prop_free(prop_val);
755 		nxge_get_logical_props(nxgep);
756 
757 		/*
758 		 * Enable Jumbo property based on the "max-frame-size"
759 		 * property value.
760 		 */
761 		max_frame_size = ddi_prop_get_int(DDI_DEV_T_ANY,
762 		    nxgep->dip, DDI_PROP_DONTPASS | DDI_PROP_NOTPROM,
763 		    "max-frame-size", NXGE_MTU_DEFAULT_MAX);
764 		if ((max_frame_size > NXGE_MTU_DEFAULT_MAX) &&
765 		    (max_frame_size <= TX_JUMBO_MTU)) {
766 			param_arr = nxgep->param_arr;
767 
768 			param_arr[param_accept_jumbo].value = 1;
769 			nxgep->mac.is_jumbo = B_TRUE;
770 			nxgep->mac.maxframesize = (uint16_t)max_frame_size;
771 			nxgep->mac.default_mtu = nxgep->mac.maxframesize -
772 			    NXGE_EHEADER_VLAN_CRC;
773 		}
774 	} else {
775 		status = nxge_xcvr_find(nxgep);
776 
777 		if (status != NXGE_OK) {
778 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "nxge_attach: "
779 			    " Couldn't determine card type"
780 			    " .... exit "));
781 			goto nxge_attach_fail5;
782 		}
783 
784 		status = nxge_get_config_properties(nxgep);
785 
786 		if (status != NXGE_OK) {
787 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
788 			    "get_hw create failed"));
789 			goto nxge_attach_fail;
790 		}
791 	}
792 
793 	/*
794 	 * Setup the Kstats for the driver.
795 	 */
796 	nxge_setup_kstats(nxgep);
797 
798 	if (!isLDOMguest(nxgep))
799 		nxge_setup_param(nxgep);
800 
801 	status = nxge_setup_system_dma_pages(nxgep);
802 	if (status != NXGE_OK) {
803 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "set dma page failed"));
804 		goto nxge_attach_fail;
805 	}
806 
807 	nxge_hw_id_init(nxgep);
808 
809 	if (!isLDOMguest(nxgep))
810 		nxge_hw_init_niu_common(nxgep);
811 
812 	status = nxge_setup_mutexes(nxgep);
813 	if (status != NXGE_OK) {
814 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set mutex failed"));
815 		goto nxge_attach_fail;
816 	}
817 
818 #if defined(sun4v)
819 	if (isLDOMguest(nxgep)) {
820 		/* Find our VR & channel sets. */
821 		status = nxge_hio_vr_add(nxgep);
822 		if (status != NXGE_OK) {
823 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
824 			    "nxge_hio_vr_add failed"));
825 			(void) hsvc_unregister(&nxgep->niu_hsvc);
826 			nxgep->niu_hsvc_available = B_FALSE;
827 		}
828 		goto nxge_attach_exit;
829 	}
830 #endif
831 
832 	status = nxge_setup_dev(nxgep);
833 	if (status != DDI_SUCCESS) {
834 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "set dev failed"));
835 		goto nxge_attach_fail;
836 	}
837 
838 	status = nxge_add_intrs(nxgep);
839 	if (status != DDI_SUCCESS) {
840 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "add_intr failed"));
841 		goto nxge_attach_fail;
842 	}
843 
844 	/* If a guest, register with vio_net instead. */
845 	if ((status = nxge_mac_register(nxgep)) != NXGE_OK) {
846 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
847 		    "unable to register to mac layer (%d)", status));
848 		goto nxge_attach_fail;
849 	}
850 
851 	mac_link_update(nxgep->mach, LINK_STATE_UNKNOWN);
852 
853 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
854 	    "registered to mac (instance %d)", instance));
855 
856 	/* nxge_link_monitor calls xcvr.check_link recursively */
857 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
858 
859 	goto nxge_attach_exit;
860 
861 nxge_attach_fail:
862 	nxge_unattach(nxgep);
863 	goto nxge_attach_fail1;
864 
865 nxge_attach_fail5:
866 	/*
867 	 * Tear down the ndd parameters setup.
868 	 */
869 	nxge_destroy_param(nxgep);
870 
871 	/*
872 	 * Tear down the kstat setup.
873 	 */
874 	nxge_destroy_kstats(nxgep);
875 
876 nxge_attach_fail4:
877 	if (nxgep->nxge_hw_p) {
878 		nxge_uninit_common_dev(nxgep);
879 		nxgep->nxge_hw_p = NULL;
880 	}
881 
882 nxge_attach_fail3:
883 	/*
884 	 * Unmap the register setup.
885 	 */
886 	nxge_unmap_regs(nxgep);
887 
888 	nxge_fm_fini(nxgep);
889 
890 nxge_attach_fail2:
891 	ddi_soft_state_free(nxge_list, nxgep->instance);
892 
893 nxge_attach_fail1:
894 	if (status != NXGE_OK)
895 		status = (NXGE_ERROR | NXGE_DDI_FAILED);
896 	nxgep = NULL;
897 
898 nxge_attach_exit:
899 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_attach status = 0x%08x",
900 	    status));
901 
902 	return (status);
903 }
904 
905 static int
906 nxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
907 {
908 	int 		status = DDI_SUCCESS;
909 	int 		instance;
910 	p_nxge_t 	nxgep = NULL;
911 
912 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_detach"));
913 	instance = ddi_get_instance(dip);
914 	nxgep = ddi_get_soft_state(nxge_list, instance);
915 	if (nxgep == NULL) {
916 		status = DDI_FAILURE;
917 		goto nxge_detach_exit;
918 	}
919 
920 	switch (cmd) {
921 	case DDI_DETACH:
922 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_DETACH"));
923 		break;
924 
925 	case DDI_PM_SUSPEND:
926 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
927 		nxgep->suspended = DDI_PM_SUSPEND;
928 		nxge_suspend(nxgep);
929 		break;
930 
931 	case DDI_SUSPEND:
932 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "doing DDI_SUSPEND"));
933 		if (nxgep->suspended != DDI_PM_SUSPEND) {
934 			nxgep->suspended = DDI_SUSPEND;
935 			nxge_suspend(nxgep);
936 		}
937 		break;
938 
939 	default:
940 		status = DDI_FAILURE;
941 	}
942 
943 	if (cmd != DDI_DETACH)
944 		goto nxge_detach_exit;
945 
946 	/*
947 	 * Stop the xcvr polling.
948 	 */
949 	nxgep->suspended = cmd;
950 
951 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
952 
953 	if (isLDOMguest(nxgep)) {
954 		if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
955 			nxge_m_stop((void *)nxgep);
956 		nxge_hio_unregister(nxgep);
957 	} else if (nxgep->mach && (status = mac_unregister(nxgep->mach)) != 0) {
958 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
959 		    "<== nxge_detach status = 0x%08X", status));
960 		return (DDI_FAILURE);
961 	}
962 
963 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
964 	    "<== nxge_detach (mac_unregister) status = 0x%08X", status));
965 
966 	nxge_unattach(nxgep);
967 	nxgep = NULL;
968 
969 nxge_detach_exit:
970 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_detach status = 0x%08X",
971 	    status));
972 
973 	return (status);
974 }
975 
976 static void
977 nxge_unattach(p_nxge_t nxgep)
978 {
979 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unattach"));
980 
981 	if (nxgep == NULL || nxgep->dev_regs == NULL) {
982 		return;
983 	}
984 
985 	nxgep->nxge_magic = 0;
986 
987 	if (nxgep->nxge_timerid) {
988 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
989 		nxgep->nxge_timerid = 0;
990 	}
991 
992 	/*
993 	 * If this flag is set, it will affect the Neptune
994 	 * only.
995 	 */
996 	if ((nxgep->niu_type != N2_NIU) && nxge_peu_reset_enable) {
997 		nxge_niu_peu_reset(nxgep);
998 	}
999 
1000 #if	defined(sun4v)
1001 	if (isLDOMguest(nxgep)) {
1002 		(void) nxge_hio_vr_release(nxgep);
1003 	}
1004 #endif
1005 
1006 	if (nxgep->nxge_hw_p) {
1007 		nxge_uninit_common_dev(nxgep);
1008 		nxgep->nxge_hw_p = NULL;
1009 	}
1010 
1011 #if	defined(sun4v)
1012 	if (nxgep->niu_type == N2_NIU && nxgep->niu_hsvc_available == B_TRUE) {
1013 		(void) hsvc_unregister(&nxgep->niu_hsvc);
1014 		nxgep->niu_hsvc_available = B_FALSE;
1015 	}
1016 #endif
1017 	/*
1018 	 * Stop any further interrupts.
1019 	 */
1020 	nxge_remove_intrs(nxgep);
1021 
1022 	/*
1023 	 * Stop the device and free resources.
1024 	 */
1025 	if (!isLDOMguest(nxgep)) {
1026 		nxge_destroy_dev(nxgep);
1027 	}
1028 
1029 	/*
1030 	 * Tear down the ndd parameters setup.
1031 	 */
1032 	nxge_destroy_param(nxgep);
1033 
1034 	/*
1035 	 * Tear down the kstat setup.
1036 	 */
1037 	nxge_destroy_kstats(nxgep);
1038 
1039 	/*
1040 	 * Destroy all mutexes.
1041 	 */
1042 	nxge_destroy_mutexes(nxgep);
1043 
1044 	/*
1045 	 * Remove the list of ndd parameters which
1046 	 * were setup during attach.
1047 	 */
1048 	if (nxgep->dip) {
1049 		NXGE_DEBUG_MSG((nxgep, OBP_CTL,
1050 		    " nxge_unattach: remove all properties"));
1051 
1052 		(void) ddi_prop_remove_all(nxgep->dip);
1053 	}
1054 
1055 #if NXGE_PROPERTY
1056 	nxge_remove_hard_properties(nxgep);
1057 #endif
1058 
1059 	/*
1060 	 * Unmap the register setup.
1061 	 */
1062 	nxge_unmap_regs(nxgep);
1063 
1064 	nxge_fm_fini(nxgep);
1065 
1066 	ddi_soft_state_free(nxge_list, nxgep->instance);
1067 
1068 	NXGE_DEBUG_MSG((NULL, DDI_CTL, "<== nxge_unattach"));
1069 }
1070 
1071 #if defined(sun4v)
1072 int
1073 nxge_hsvc_register(nxge_t *nxgep)
1074 {
1075 	nxge_status_t status;
1076 
1077 	if (nxgep->niu_type == N2_NIU) {
1078 		nxgep->niu_hsvc_available = B_FALSE;
1079 		bcopy(&niu_hsvc, &nxgep->niu_hsvc, sizeof (hsvc_info_t));
1080 		if ((status = hsvc_register(&nxgep->niu_hsvc,
1081 		    &nxgep->niu_min_ver)) != 0) {
1082 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1083 			    "nxge_attach: %s: cannot negotiate "
1084 			    "hypervisor services revision %d group: 0x%lx "
1085 			    "major: 0x%lx minor: 0x%lx errno: %d",
1086 			    niu_hsvc.hsvc_modname, niu_hsvc.hsvc_rev,
1087 			    niu_hsvc.hsvc_group, niu_hsvc.hsvc_major,
1088 			    niu_hsvc.hsvc_minor, status));
1089 			return (DDI_FAILURE);
1090 		}
1091 		nxgep->niu_hsvc_available = B_TRUE;
1092 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1093 		    "NIU Hypervisor service enabled"));
1094 	}
1095 
1096 	return (DDI_SUCCESS);
1097 }
1098 #endif
1099 
1100 static char n2_siu_name[] = "niu";
1101 
1102 static nxge_status_t
1103 nxge_map_regs(p_nxge_t nxgep)
1104 {
1105 	int		ddi_status = DDI_SUCCESS;
1106 	p_dev_regs_t 	dev_regs;
1107 	char		buf[MAXPATHLEN + 1];
1108 	char 		*devname;
1109 #ifdef	NXGE_DEBUG
1110 	char 		*sysname;
1111 #endif
1112 	off_t		regsize;
1113 	nxge_status_t	status = NXGE_OK;
1114 #if !defined(_BIG_ENDIAN)
1115 	off_t pci_offset;
1116 	uint16_t pcie_devctl;
1117 #endif
1118 
1119 	if (isLDOMguest(nxgep)) {
1120 		return (nxge_guest_regs_map(nxgep));
1121 	}
1122 
1123 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_map_regs"));
1124 	nxgep->dev_regs = NULL;
1125 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
1126 	dev_regs->nxge_regh = NULL;
1127 	dev_regs->nxge_pciregh = NULL;
1128 	dev_regs->nxge_msix_regh = NULL;
1129 	dev_regs->nxge_vir_regh = NULL;
1130 	dev_regs->nxge_vir2_regh = NULL;
1131 	nxgep->niu_type = NIU_TYPE_NONE;
1132 
1133 	devname = ddi_pathname(nxgep->dip, buf);
1134 	ASSERT(strlen(devname) > 0);
1135 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1136 	    "nxge_map_regs: pathname devname %s", devname));
1137 
1138 	/*
1139 	 * The driver is running on a N2-NIU system if devname is something
1140 	 * like "/niu@80/network@0"
1141 	 */
1142 	if (strstr(devname, n2_siu_name)) {
1143 		/* N2/NIU */
1144 		nxgep->niu_type = N2_NIU;
1145 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1146 		    "nxge_map_regs: N2/NIU devname %s", devname));
1147 		/* get function number */
1148 		nxgep->function_num =
1149 		    (devname[strlen(devname) -1] == '1' ? 1 : 0);
1150 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1151 		    "nxge_map_regs: N2/NIU function number %d",
1152 		    nxgep->function_num));
1153 	} else {
1154 		int		*prop_val;
1155 		uint_t 		prop_len;
1156 		uint8_t 	func_num;
1157 
1158 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, nxgep->dip,
1159 		    0, "reg",
1160 		    &prop_val, &prop_len) != DDI_PROP_SUCCESS) {
1161 			NXGE_DEBUG_MSG((nxgep, VPD_CTL,
1162 			    "Reg property not found"));
1163 			ddi_status = DDI_FAILURE;
1164 			goto nxge_map_regs_fail0;
1165 
1166 		} else {
1167 			func_num = (prop_val[0] >> 8) & 0x7;
1168 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1169 			    "Reg property found: fun # %d",
1170 			    func_num));
1171 			nxgep->function_num = func_num;
1172 			if (isLDOMguest(nxgep)) {
1173 				nxgep->function_num /= 2;
1174 				return (NXGE_OK);
1175 			}
1176 			ddi_prop_free(prop_val);
1177 		}
1178 	}
1179 
1180 	switch (nxgep->niu_type) {
1181 	default:
1182 		(void) ddi_dev_regsize(nxgep->dip, 0, &regsize);
1183 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1184 		    "nxge_map_regs: pci config size 0x%x", regsize));
1185 
1186 		ddi_status = ddi_regs_map_setup(nxgep->dip, 0,
1187 		    (caddr_t *)&(dev_regs->nxge_pciregp), 0, 0,
1188 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_pciregh);
1189 		if (ddi_status != DDI_SUCCESS) {
1190 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1191 			    "ddi_map_regs, nxge bus config regs failed"));
1192 			goto nxge_map_regs_fail0;
1193 		}
1194 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1195 		    "nxge_map_reg: PCI config addr 0x%0llx "
1196 		    " handle 0x%0llx", dev_regs->nxge_pciregp,
1197 		    dev_regs->nxge_pciregh));
1198 			/*
1199 			 * IMP IMP
1200 			 * workaround  for bit swapping bug in HW
1201 			 * which ends up in no-snoop = yes
1202 			 * resulting, in DMA not synched properly
1203 			 */
1204 #if !defined(_BIG_ENDIAN)
1205 		/* workarounds for x86 systems */
1206 		pci_offset = 0x80 + PCIE_DEVCTL;
1207 		pcie_devctl = 0x0;
1208 		pcie_devctl &= PCIE_DEVCTL_ENABLE_NO_SNOOP;
1209 		pcie_devctl |= PCIE_DEVCTL_RO_EN;
1210 		pci_config_put16(dev_regs->nxge_pciregh, pci_offset,
1211 		    pcie_devctl);
1212 #endif
1213 
1214 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1215 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1216 		    "nxge_map_regs: pio size 0x%x", regsize));
1217 		/* set up the device mapped register */
1218 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1219 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1220 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1221 		if (ddi_status != DDI_SUCCESS) {
1222 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1223 			    "ddi_map_regs for Neptune global reg failed"));
1224 			goto nxge_map_regs_fail1;
1225 		}
1226 
1227 		/* set up the msi/msi-x mapped register */
1228 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1229 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1230 		    "nxge_map_regs: msix size 0x%x", regsize));
1231 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1232 		    (caddr_t *)&(dev_regs->nxge_msix_regp), 0, 0,
1233 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_msix_regh);
1234 		if (ddi_status != DDI_SUCCESS) {
1235 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1236 			    "ddi_map_regs for msi reg failed"));
1237 			goto nxge_map_regs_fail2;
1238 		}
1239 
1240 		/* set up the vio region mapped register */
1241 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1242 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1243 		    "nxge_map_regs: vio size 0x%x", regsize));
1244 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1245 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1246 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1247 
1248 		if (ddi_status != DDI_SUCCESS) {
1249 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1250 			    "ddi_map_regs for nxge vio reg failed"));
1251 			goto nxge_map_regs_fail3;
1252 		}
1253 		nxgep->dev_regs = dev_regs;
1254 
1255 		NPI_PCI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_pciregh);
1256 		NPI_PCI_ADD_HANDLE_SET(nxgep,
1257 		    (npi_reg_ptr_t)dev_regs->nxge_pciregp);
1258 		NPI_MSI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_msix_regh);
1259 		NPI_MSI_ADD_HANDLE_SET(nxgep,
1260 		    (npi_reg_ptr_t)dev_regs->nxge_msix_regp);
1261 
1262 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1263 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1264 
1265 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1266 		NPI_REG_ADD_HANDLE_SET(nxgep,
1267 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1268 
1269 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1270 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1271 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1272 
1273 		break;
1274 
1275 	case N2_NIU:
1276 		NXGE_DEBUG_MSG((nxgep, DDI_CTL, "ddi_map_regs, NIU"));
1277 		/*
1278 		 * Set up the device mapped register (FWARC 2006/556)
1279 		 * (changed back to 1: reg starts at 1!)
1280 		 */
1281 		(void) ddi_dev_regsize(nxgep->dip, 1, &regsize);
1282 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1283 		    "nxge_map_regs: dev size 0x%x", regsize));
1284 		ddi_status = ddi_regs_map_setup(nxgep->dip, 1,
1285 		    (caddr_t *)&(dev_regs->nxge_regp), 0, 0,
1286 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_regh);
1287 
1288 		if (ddi_status != DDI_SUCCESS) {
1289 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1290 			    "ddi_map_regs for N2/NIU, global reg failed "));
1291 			goto nxge_map_regs_fail1;
1292 		}
1293 
1294 		/* set up the first vio region mapped register */
1295 		(void) ddi_dev_regsize(nxgep->dip, 2, &regsize);
1296 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1297 		    "nxge_map_regs: vio (1) size 0x%x", regsize));
1298 		ddi_status = ddi_regs_map_setup(nxgep->dip, 2,
1299 		    (caddr_t *)&(dev_regs->nxge_vir_regp), 0, 0,
1300 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir_regh);
1301 
1302 		if (ddi_status != DDI_SUCCESS) {
1303 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1304 			    "ddi_map_regs for nxge vio reg failed"));
1305 			goto nxge_map_regs_fail2;
1306 		}
1307 		/* set up the second vio region mapped register */
1308 		(void) ddi_dev_regsize(nxgep->dip, 3, &regsize);
1309 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1310 		    "nxge_map_regs: vio (3) size 0x%x", regsize));
1311 		ddi_status = ddi_regs_map_setup(nxgep->dip, 3,
1312 		    (caddr_t *)&(dev_regs->nxge_vir2_regp), 0, 0,
1313 		    &nxge_dev_reg_acc_attr, &dev_regs->nxge_vir2_regh);
1314 
1315 		if (ddi_status != DDI_SUCCESS) {
1316 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1317 			    "ddi_map_regs for nxge vio2 reg failed"));
1318 			goto nxge_map_regs_fail3;
1319 		}
1320 		nxgep->dev_regs = dev_regs;
1321 
1322 		NPI_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1323 		NPI_ADD_HANDLE_SET(nxgep, (npi_reg_ptr_t)dev_regs->nxge_regp);
1324 
1325 		NPI_REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_regh);
1326 		NPI_REG_ADD_HANDLE_SET(nxgep,
1327 		    (npi_reg_ptr_t)dev_regs->nxge_regp);
1328 
1329 		NPI_VREG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir_regh);
1330 		NPI_VREG_ADD_HANDLE_SET(nxgep,
1331 		    (npi_reg_ptr_t)dev_regs->nxge_vir_regp);
1332 
1333 		NPI_V2REG_ACC_HANDLE_SET(nxgep, dev_regs->nxge_vir2_regh);
1334 		NPI_V2REG_ADD_HANDLE_SET(nxgep,
1335 		    (npi_reg_ptr_t)dev_regs->nxge_vir2_regp);
1336 
1337 		break;
1338 	}
1339 
1340 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "nxge_map_reg: hardware addr 0x%0llx "
1341 	    " handle 0x%0llx", dev_regs->nxge_regp, dev_regs->nxge_regh));
1342 
1343 	goto nxge_map_regs_exit;
1344 nxge_map_regs_fail3:
1345 	if (dev_regs->nxge_msix_regh) {
1346 		ddi_regs_map_free(&dev_regs->nxge_msix_regh);
1347 	}
1348 	if (dev_regs->nxge_vir_regh) {
1349 		ddi_regs_map_free(&dev_regs->nxge_regh);
1350 	}
1351 nxge_map_regs_fail2:
1352 	if (dev_regs->nxge_regh) {
1353 		ddi_regs_map_free(&dev_regs->nxge_regh);
1354 	}
1355 nxge_map_regs_fail1:
1356 	if (dev_regs->nxge_pciregh) {
1357 		ddi_regs_map_free(&dev_regs->nxge_pciregh);
1358 	}
1359 nxge_map_regs_fail0:
1360 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "Freeing register set memory"));
1361 	kmem_free(dev_regs, sizeof (dev_regs_t));
1362 
1363 nxge_map_regs_exit:
1364 	if (ddi_status != DDI_SUCCESS)
1365 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1366 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_map_regs"));
1367 	return (status);
1368 }
1369 
1370 static void
1371 nxge_unmap_regs(p_nxge_t nxgep)
1372 {
1373 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_unmap_regs"));
1374 
1375 	if (isLDOMguest(nxgep)) {
1376 		nxge_guest_regs_map_free(nxgep);
1377 		return;
1378 	}
1379 
1380 	if (nxgep->dev_regs) {
1381 		if (nxgep->dev_regs->nxge_pciregh) {
1382 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1383 			    "==> nxge_unmap_regs: bus"));
1384 			ddi_regs_map_free(&nxgep->dev_regs->nxge_pciregh);
1385 			nxgep->dev_regs->nxge_pciregh = NULL;
1386 		}
1387 		if (nxgep->dev_regs->nxge_regh) {
1388 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1389 			    "==> nxge_unmap_regs: device registers"));
1390 			ddi_regs_map_free(&nxgep->dev_regs->nxge_regh);
1391 			nxgep->dev_regs->nxge_regh = NULL;
1392 		}
1393 		if (nxgep->dev_regs->nxge_msix_regh) {
1394 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1395 			    "==> nxge_unmap_regs: device interrupts"));
1396 			ddi_regs_map_free(&nxgep->dev_regs->nxge_msix_regh);
1397 			nxgep->dev_regs->nxge_msix_regh = NULL;
1398 		}
1399 		if (nxgep->dev_regs->nxge_vir_regh) {
1400 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1401 			    "==> nxge_unmap_regs: vio region"));
1402 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir_regh);
1403 			nxgep->dev_regs->nxge_vir_regh = NULL;
1404 		}
1405 		if (nxgep->dev_regs->nxge_vir2_regh) {
1406 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1407 			    "==> nxge_unmap_regs: vio2 region"));
1408 			ddi_regs_map_free(&nxgep->dev_regs->nxge_vir2_regh);
1409 			nxgep->dev_regs->nxge_vir2_regh = NULL;
1410 		}
1411 
1412 		kmem_free(nxgep->dev_regs, sizeof (dev_regs_t));
1413 		nxgep->dev_regs = NULL;
1414 	}
1415 
1416 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_unmap_regs"));
1417 }
1418 
1419 static nxge_status_t
1420 nxge_setup_mutexes(p_nxge_t nxgep)
1421 {
1422 	int ddi_status = DDI_SUCCESS;
1423 	nxge_status_t status = NXGE_OK;
1424 	nxge_classify_t *classify_ptr;
1425 	int partition;
1426 
1427 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_mutexes"));
1428 
1429 	/*
1430 	 * Get the interrupt cookie so the mutexes can be
1431 	 * Initialized.
1432 	 */
1433 	if (isLDOMguest(nxgep)) {
1434 		nxgep->interrupt_cookie = 0;
1435 	} else {
1436 		ddi_status = ddi_get_iblock_cookie(nxgep->dip, 0,
1437 		    &nxgep->interrupt_cookie);
1438 
1439 		if (ddi_status != DDI_SUCCESS) {
1440 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1441 			    "<== nxge_setup_mutexes: failed 0x%x",
1442 			    ddi_status));
1443 			goto nxge_setup_mutexes_exit;
1444 		}
1445 	}
1446 
1447 	cv_init(&nxgep->poll_cv, NULL, CV_DRIVER, NULL);
1448 	MUTEX_INIT(&nxgep->poll_lock, NULL,
1449 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1450 
1451 	/*
1452 	 * Initialize mutexes for this device.
1453 	 */
1454 	MUTEX_INIT(nxgep->genlock, NULL,
1455 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1456 	MUTEX_INIT(&nxgep->ouraddr_lock, NULL,
1457 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1458 	MUTEX_INIT(&nxgep->mif_lock, NULL,
1459 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1460 	MUTEX_INIT(&nxgep->group_lock, NULL,
1461 	    MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1462 	RW_INIT(&nxgep->filter_lock, NULL,
1463 	    RW_DRIVER, (void *)nxgep->interrupt_cookie);
1464 
1465 	classify_ptr = &nxgep->classifier;
1466 		/*
1467 		 * FFLP Mutexes are never used in interrupt context
1468 		 * as fflp operation can take very long time to
1469 		 * complete and hence not suitable to invoke from interrupt
1470 		 * handlers.
1471 		 */
1472 	MUTEX_INIT(&classify_ptr->tcam_lock, NULL,
1473 	    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1474 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1475 		MUTEX_INIT(&classify_ptr->fcram_lock, NULL,
1476 		    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1477 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1478 			MUTEX_INIT(&classify_ptr->hash_lock[partition], NULL,
1479 			    NXGE_MUTEX_DRIVER, (void *)nxgep->interrupt_cookie);
1480 		}
1481 	}
1482 
1483 nxge_setup_mutexes_exit:
1484 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1485 	    "<== nxge_setup_mutexes status = %x", status));
1486 
1487 	if (ddi_status != DDI_SUCCESS)
1488 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
1489 
1490 	return (status);
1491 }
1492 
1493 static void
1494 nxge_destroy_mutexes(p_nxge_t nxgep)
1495 {
1496 	int partition;
1497 	nxge_classify_t *classify_ptr;
1498 
1499 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_mutexes"));
1500 	RW_DESTROY(&nxgep->filter_lock);
1501 	MUTEX_DESTROY(&nxgep->group_lock);
1502 	MUTEX_DESTROY(&nxgep->mif_lock);
1503 	MUTEX_DESTROY(&nxgep->ouraddr_lock);
1504 	MUTEX_DESTROY(nxgep->genlock);
1505 
1506 	classify_ptr = &nxgep->classifier;
1507 	MUTEX_DESTROY(&classify_ptr->tcam_lock);
1508 
1509 	/* Destroy all polling resources. */
1510 	MUTEX_DESTROY(&nxgep->poll_lock);
1511 	cv_destroy(&nxgep->poll_cv);
1512 
1513 	/* free data structures, based on HW type */
1514 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1515 		MUTEX_DESTROY(&classify_ptr->fcram_lock);
1516 		for (partition = 0; partition < MAX_PARTITION; partition++) {
1517 			MUTEX_DESTROY(&classify_ptr->hash_lock[partition]);
1518 		}
1519 	}
1520 
1521 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_mutexes"));
1522 }
1523 
1524 nxge_status_t
1525 nxge_init(p_nxge_t nxgep)
1526 {
1527 	nxge_status_t status = NXGE_OK;
1528 
1529 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_init"));
1530 
1531 	if (nxgep->drv_state & STATE_HW_INITIALIZED) {
1532 		return (status);
1533 	}
1534 
1535 	/*
1536 	 * Allocate system memory for the receive/transmit buffer blocks
1537 	 * and receive/transmit descriptor rings.
1538 	 */
1539 	status = nxge_alloc_mem_pool(nxgep);
1540 	if (status != NXGE_OK) {
1541 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "alloc mem failed\n"));
1542 		goto nxge_init_fail1;
1543 	}
1544 
1545 	if (!isLDOMguest(nxgep)) {
1546 		/*
1547 		 * Initialize and enable the TXC registers.
1548 		 * (Globally enable the Tx controller,
1549 		 *  enable the port, configure the dma channel bitmap,
1550 		 *  configure the max burst size).
1551 		 */
1552 		status = nxge_txc_init(nxgep);
1553 		if (status != NXGE_OK) {
1554 			NXGE_ERROR_MSG((nxgep,
1555 			    NXGE_ERR_CTL, "init txc failed\n"));
1556 			goto nxge_init_fail2;
1557 		}
1558 	}
1559 
1560 	/*
1561 	 * Initialize and enable TXDMA channels.
1562 	 */
1563 	status = nxge_init_txdma_channels(nxgep);
1564 	if (status != NXGE_OK) {
1565 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init txdma failed\n"));
1566 		goto nxge_init_fail3;
1567 	}
1568 
1569 	/*
1570 	 * Initialize and enable RXDMA channels.
1571 	 */
1572 	status = nxge_init_rxdma_channels(nxgep);
1573 	if (status != NXGE_OK) {
1574 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init rxdma failed\n"));
1575 		goto nxge_init_fail4;
1576 	}
1577 
1578 	/*
1579 	 * The guest domain is now done.
1580 	 */
1581 	if (isLDOMguest(nxgep)) {
1582 		nxgep->drv_state |= STATE_HW_INITIALIZED;
1583 		goto nxge_init_exit;
1584 	}
1585 
1586 	/*
1587 	 * Initialize TCAM and FCRAM (Neptune).
1588 	 */
1589 	status = nxge_classify_init(nxgep);
1590 	if (status != NXGE_OK) {
1591 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init classify failed\n"));
1592 		goto nxge_init_fail5;
1593 	}
1594 
1595 	/*
1596 	 * Initialize ZCP
1597 	 */
1598 	status = nxge_zcp_init(nxgep);
1599 	if (status != NXGE_OK) {
1600 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init ZCP failed\n"));
1601 		goto nxge_init_fail5;
1602 	}
1603 
1604 	/*
1605 	 * Initialize IPP.
1606 	 */
1607 	status = nxge_ipp_init(nxgep);
1608 	if (status != NXGE_OK) {
1609 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init IPP failed\n"));
1610 		goto nxge_init_fail5;
1611 	}
1612 
1613 	/*
1614 	 * Initialize the MAC block.
1615 	 */
1616 	status = nxge_mac_init(nxgep);
1617 	if (status != NXGE_OK) {
1618 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "init MAC failed\n"));
1619 		goto nxge_init_fail5;
1620 	}
1621 
1622 	nxge_intrs_enable(nxgep); /* XXX What changes do I need to make here? */
1623 
1624 	/*
1625 	 * Enable hardware interrupts.
1626 	 */
1627 	nxge_intr_hw_enable(nxgep);
1628 	nxgep->drv_state |= STATE_HW_INITIALIZED;
1629 
1630 	goto nxge_init_exit;
1631 
1632 nxge_init_fail5:
1633 	nxge_uninit_rxdma_channels(nxgep);
1634 nxge_init_fail4:
1635 	nxge_uninit_txdma_channels(nxgep);
1636 nxge_init_fail3:
1637 	if (!isLDOMguest(nxgep)) {
1638 		(void) nxge_txc_uninit(nxgep);
1639 	}
1640 nxge_init_fail2:
1641 	nxge_free_mem_pool(nxgep);
1642 nxge_init_fail1:
1643 	NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1644 	    "<== nxge_init status (failed) = 0x%08x", status));
1645 	return (status);
1646 
1647 nxge_init_exit:
1648 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_init status = 0x%08x",
1649 	    status));
1650 	return (status);
1651 }
1652 
1653 
1654 timeout_id_t
1655 nxge_start_timer(p_nxge_t nxgep, fptrv_t func, int msec)
1656 {
1657 	if ((nxgep->suspended == 0) || (nxgep->suspended == DDI_RESUME)) {
1658 		return (timeout(func, (caddr_t)nxgep,
1659 		    drv_usectohz(1000 * msec)));
1660 	}
1661 	return (NULL);
1662 }
1663 
1664 /*ARGSUSED*/
1665 void
1666 nxge_stop_timer(p_nxge_t nxgep, timeout_id_t timerid)
1667 {
1668 	if (timerid) {
1669 		(void) untimeout(timerid);
1670 	}
1671 }
1672 
1673 void
1674 nxge_uninit(p_nxge_t nxgep)
1675 {
1676 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_uninit"));
1677 
1678 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
1679 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1680 		    "==> nxge_uninit: not initialized"));
1681 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1682 		    "<== nxge_uninit"));
1683 		return;
1684 	}
1685 
1686 	/* stop timer */
1687 	if (nxgep->nxge_timerid) {
1688 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
1689 		nxgep->nxge_timerid = 0;
1690 	}
1691 
1692 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
1693 	(void) nxge_intr_hw_disable(nxgep);
1694 
1695 	/*
1696 	 * Reset the receive MAC side.
1697 	 */
1698 	(void) nxge_rx_mac_disable(nxgep);
1699 
1700 	/* Disable and soft reset the IPP */
1701 	if (!isLDOMguest(nxgep))
1702 		(void) nxge_ipp_disable(nxgep);
1703 
1704 	/* Free classification resources */
1705 	(void) nxge_classify_uninit(nxgep);
1706 
1707 	/*
1708 	 * Reset the transmit/receive DMA side.
1709 	 */
1710 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
1711 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
1712 
1713 	nxge_uninit_txdma_channels(nxgep);
1714 	nxge_uninit_rxdma_channels(nxgep);
1715 
1716 	/*
1717 	 * Reset the transmit MAC side.
1718 	 */
1719 	(void) nxge_tx_mac_disable(nxgep);
1720 
1721 	nxge_free_mem_pool(nxgep);
1722 
1723 	/*
1724 	 * Start the timer if the reset flag is not set.
1725 	 * If this reset flag is set, the link monitor
1726 	 * will not be started in order to stop furthur bus
1727 	 * activities coming from this interface.
1728 	 * The driver will start the monitor function
1729 	 * if the interface was initialized again later.
1730 	 */
1731 	if (!nxge_peu_reset_enable) {
1732 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1733 	}
1734 
1735 	nxgep->drv_state &= ~STATE_HW_INITIALIZED;
1736 
1737 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_uninit: "
1738 	    "nxge_mblks_pending %d", nxge_mblks_pending));
1739 }
1740 
1741 void
1742 nxge_get64(p_nxge_t nxgep, p_mblk_t mp)
1743 {
1744 #if defined(__i386)
1745 	size_t		reg;
1746 #else
1747 	uint64_t	reg;
1748 #endif
1749 	uint64_t	regdata;
1750 	int		i, retry;
1751 
1752 	bcopy((char *)mp->b_rptr, (char *)&reg, sizeof (uint64_t));
1753 	regdata = 0;
1754 	retry = 1;
1755 
1756 	for (i = 0; i < retry; i++) {
1757 		NXGE_REG_RD64(nxgep->npi_handle, reg, &regdata);
1758 	}
1759 	bcopy((char *)&regdata, (char *)mp->b_rptr, sizeof (uint64_t));
1760 }
1761 
1762 void
1763 nxge_put64(p_nxge_t nxgep, p_mblk_t mp)
1764 {
1765 #if defined(__i386)
1766 	size_t		reg;
1767 #else
1768 	uint64_t	reg;
1769 #endif
1770 	uint64_t	buf[2];
1771 
1772 	bcopy((char *)mp->b_rptr, (char *)&buf[0], 2 * sizeof (uint64_t));
1773 #if defined(__i386)
1774 	reg = (size_t)buf[0];
1775 #else
1776 	reg = buf[0];
1777 #endif
1778 
1779 	NXGE_NPI_PIO_WRITE64(nxgep->npi_handle, reg, buf[1]);
1780 }
1781 
1782 
1783 nxge_os_mutex_t nxgedebuglock;
1784 int nxge_debug_init = 0;
1785 
1786 /*ARGSUSED*/
1787 /*VARARGS*/
1788 void
1789 nxge_debug_msg(p_nxge_t nxgep, uint64_t level, char *fmt, ...)
1790 {
1791 	char msg_buffer[1048];
1792 	char prefix_buffer[32];
1793 	int instance;
1794 	uint64_t debug_level;
1795 	int cmn_level = CE_CONT;
1796 	va_list ap;
1797 
1798 	if (nxgep && nxgep->nxge_debug_level != nxge_debug_level) {
1799 		/* In case a developer has changed nxge_debug_level. */
1800 		if (nxgep->nxge_debug_level != nxge_debug_level)
1801 			nxgep->nxge_debug_level = nxge_debug_level;
1802 	}
1803 
1804 	debug_level = (nxgep == NULL) ? nxge_debug_level :
1805 	    nxgep->nxge_debug_level;
1806 
1807 	if ((level & debug_level) ||
1808 	    (level == NXGE_NOTE) ||
1809 	    (level == NXGE_ERR_CTL)) {
1810 		/* do the msg processing */
1811 		if (nxge_debug_init == 0) {
1812 			MUTEX_INIT(&nxgedebuglock, NULL, MUTEX_DRIVER, NULL);
1813 			nxge_debug_init = 1;
1814 		}
1815 
1816 		MUTEX_ENTER(&nxgedebuglock);
1817 
1818 		if ((level & NXGE_NOTE)) {
1819 			cmn_level = CE_NOTE;
1820 		}
1821 
1822 		if (level & NXGE_ERR_CTL) {
1823 			cmn_level = CE_WARN;
1824 		}
1825 
1826 		va_start(ap, fmt);
1827 		(void) vsprintf(msg_buffer, fmt, ap);
1828 		va_end(ap);
1829 		if (nxgep == NULL) {
1830 			instance = -1;
1831 			(void) sprintf(prefix_buffer, "%s :", "nxge");
1832 		} else {
1833 			instance = nxgep->instance;
1834 			(void) sprintf(prefix_buffer,
1835 			    "%s%d :", "nxge", instance);
1836 		}
1837 
1838 		MUTEX_EXIT(&nxgedebuglock);
1839 		cmn_err(cmn_level, "!%s %s\n",
1840 		    prefix_buffer, msg_buffer);
1841 
1842 	}
1843 }
1844 
1845 char *
1846 nxge_dump_packet(char *addr, int size)
1847 {
1848 	uchar_t *ap = (uchar_t *)addr;
1849 	int i;
1850 	static char etherbuf[1024];
1851 	char *cp = etherbuf;
1852 	char digits[] = "0123456789abcdef";
1853 
1854 	if (!size)
1855 		size = 60;
1856 
1857 	if (size > MAX_DUMP_SZ) {
1858 		/* Dump the leading bytes */
1859 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1860 			if (*ap > 0x0f)
1861 				*cp++ = digits[*ap >> 4];
1862 			*cp++ = digits[*ap++ & 0xf];
1863 			*cp++ = ':';
1864 		}
1865 		for (i = 0; i < 20; i++)
1866 			*cp++ = '.';
1867 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1868 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ/2));
1869 		for (i = 0; i < MAX_DUMP_SZ/2; i++) {
1870 			if (*ap > 0x0f)
1871 				*cp++ = digits[*ap >> 4];
1872 			*cp++ = digits[*ap++ & 0xf];
1873 			*cp++ = ':';
1874 		}
1875 	} else {
1876 		for (i = 0; i < size; i++) {
1877 			if (*ap > 0x0f)
1878 				*cp++ = digits[*ap >> 4];
1879 			*cp++ = digits[*ap++ & 0xf];
1880 			*cp++ = ':';
1881 		}
1882 	}
1883 	*--cp = 0;
1884 	return (etherbuf);
1885 }
1886 
1887 #ifdef	NXGE_DEBUG
1888 static void
1889 nxge_test_map_regs(p_nxge_t nxgep)
1890 {
1891 	ddi_acc_handle_t cfg_handle;
1892 	p_pci_cfg_t	cfg_ptr;
1893 	ddi_acc_handle_t dev_handle;
1894 	char		*dev_ptr;
1895 	ddi_acc_handle_t pci_config_handle;
1896 	uint32_t	regval;
1897 	int		i;
1898 
1899 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_test_map_regs"));
1900 
1901 	dev_handle = nxgep->dev_regs->nxge_regh;
1902 	dev_ptr = (char *)nxgep->dev_regs->nxge_regp;
1903 
1904 	if (NXGE_IS_VALID_NEPTUNE_TYPE(nxgep)) {
1905 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1906 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1907 
1908 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1909 		    "Neptune PCI regp cfg_ptr 0x%llx", (char *)cfg_ptr));
1910 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1911 		    "Neptune PCI cfg_ptr vendor id ptr 0x%llx",
1912 		    &cfg_ptr->vendorid));
1913 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1914 		    "\tvendorid 0x%x devid 0x%x",
1915 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->vendorid, 0),
1916 		    NXGE_PIO_READ16(cfg_handle, &cfg_ptr->devid,    0)));
1917 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1918 		    "PCI BAR: base 0x%x base14 0x%x base 18 0x%x "
1919 		    "bar1c 0x%x",
1920 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base,   0),
1921 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base14, 0),
1922 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base18, 0),
1923 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base1c, 0)));
1924 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1925 		    "\nNeptune PCI BAR: base20 0x%x base24 0x%x "
1926 		    "base 28 0x%x bar2c 0x%x\n",
1927 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base20, 0),
1928 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base24, 0),
1929 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base28, 0),
1930 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base2c, 0)));
1931 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1932 		    "\nNeptune PCI BAR: base30 0x%x\n",
1933 		    NXGE_PIO_READ32(cfg_handle, &cfg_ptr->base30, 0)));
1934 
1935 		cfg_handle = nxgep->dev_regs->nxge_pciregh;
1936 		cfg_ptr = (void *)nxgep->dev_regs->nxge_pciregp;
1937 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1938 		    "first  0x%llx second 0x%llx third 0x%llx "
1939 		    "last 0x%llx ",
1940 		    NXGE_PIO_READ64(dev_handle,
1941 		    (uint64_t *)(dev_ptr + 0),  0),
1942 		    NXGE_PIO_READ64(dev_handle,
1943 		    (uint64_t *)(dev_ptr + 8),  0),
1944 		    NXGE_PIO_READ64(dev_handle,
1945 		    (uint64_t *)(dev_ptr + 16), 0),
1946 		    NXGE_PIO_READ64(cfg_handle,
1947 		    (uint64_t *)(dev_ptr + 24), 0)));
1948 	}
1949 }
1950 
1951 #endif
1952 
1953 static void
1954 nxge_suspend(p_nxge_t nxgep)
1955 {
1956 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_suspend"));
1957 
1958 	nxge_intrs_disable(nxgep);
1959 	nxge_destroy_dev(nxgep);
1960 
1961 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_suspend"));
1962 }
1963 
1964 static nxge_status_t
1965 nxge_resume(p_nxge_t nxgep)
1966 {
1967 	nxge_status_t status = NXGE_OK;
1968 
1969 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_resume"));
1970 
1971 	nxgep->suspended = DDI_RESUME;
1972 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
1973 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_START);
1974 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_START);
1975 	(void) nxge_rx_mac_enable(nxgep);
1976 	(void) nxge_tx_mac_enable(nxgep);
1977 	nxge_intrs_enable(nxgep);
1978 	nxgep->suspended = 0;
1979 
1980 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
1981 	    "<== nxge_resume status = 0x%x", status));
1982 	return (status);
1983 }
1984 
1985 static nxge_status_t
1986 nxge_setup_dev(p_nxge_t nxgep)
1987 {
1988 	nxge_status_t	status = NXGE_OK;
1989 
1990 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_setup_dev port %d",
1991 	    nxgep->mac.portnum));
1992 
1993 	status = nxge_link_init(nxgep);
1994 
1995 	if (fm_check_acc_handle(nxgep->dev_regs->nxge_regh) != DDI_FM_OK) {
1996 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
1997 		    "port%d Bad register acc handle", nxgep->mac.portnum));
1998 		status = NXGE_ERROR;
1999 	}
2000 
2001 	if (status != NXGE_OK) {
2002 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2003 		    " nxge_setup_dev status "
2004 		    "(xcvr init 0x%08x)", status));
2005 		goto nxge_setup_dev_exit;
2006 	}
2007 
2008 nxge_setup_dev_exit:
2009 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2010 	    "<== nxge_setup_dev port %d status = 0x%08x",
2011 	    nxgep->mac.portnum, status));
2012 
2013 	return (status);
2014 }
2015 
2016 static void
2017 nxge_destroy_dev(p_nxge_t nxgep)
2018 {
2019 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_destroy_dev"));
2020 
2021 	(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
2022 
2023 	(void) nxge_hw_stop(nxgep);
2024 
2025 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_destroy_dev"));
2026 }
2027 
2028 static nxge_status_t
2029 nxge_setup_system_dma_pages(p_nxge_t nxgep)
2030 {
2031 	int 			ddi_status = DDI_SUCCESS;
2032 	uint_t 			count;
2033 	ddi_dma_cookie_t 	cookie;
2034 	uint_t 			iommu_pagesize;
2035 	nxge_status_t		status = NXGE_OK;
2036 
2037 	NXGE_ERROR_MSG((nxgep, DDI_CTL, "==> nxge_setup_system_dma_pages"));
2038 	nxgep->sys_page_sz = ddi_ptob(nxgep->dip, (ulong_t)1);
2039 	if (nxgep->niu_type != N2_NIU) {
2040 		iommu_pagesize = dvma_pagesize(nxgep->dip);
2041 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2042 		    " nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2043 		    " default_block_size %d iommu_pagesize %d",
2044 		    nxgep->sys_page_sz,
2045 		    ddi_ptob(nxgep->dip, (ulong_t)1),
2046 		    nxgep->rx_default_block_size,
2047 		    iommu_pagesize));
2048 
2049 		if (iommu_pagesize != 0) {
2050 			if (nxgep->sys_page_sz == iommu_pagesize) {
2051 				if (iommu_pagesize > 0x4000)
2052 					nxgep->sys_page_sz = 0x4000;
2053 			} else {
2054 				if (nxgep->sys_page_sz > iommu_pagesize)
2055 					nxgep->sys_page_sz = iommu_pagesize;
2056 			}
2057 		}
2058 	}
2059 	nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2060 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2061 	    "==> nxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
2062 	    "default_block_size %d page mask %d",
2063 	    nxgep->sys_page_sz,
2064 	    ddi_ptob(nxgep->dip, (ulong_t)1),
2065 	    nxgep->rx_default_block_size,
2066 	    nxgep->sys_page_mask));
2067 
2068 
2069 	switch (nxgep->sys_page_sz) {
2070 	default:
2071 		nxgep->sys_page_sz = 0x1000;
2072 		nxgep->sys_page_mask = ~(nxgep->sys_page_sz - 1);
2073 		nxgep->rx_default_block_size = 0x1000;
2074 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2075 		break;
2076 	case 0x1000:
2077 		nxgep->rx_default_block_size = 0x1000;
2078 		nxgep->rx_bksize_code = RBR_BKSIZE_4K;
2079 		break;
2080 	case 0x2000:
2081 		nxgep->rx_default_block_size = 0x2000;
2082 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2083 		break;
2084 	case 0x4000:
2085 		nxgep->rx_default_block_size = 0x4000;
2086 		nxgep->rx_bksize_code = RBR_BKSIZE_16K;
2087 		break;
2088 	case 0x8000:
2089 		nxgep->rx_default_block_size = 0x8000;
2090 		nxgep->rx_bksize_code = RBR_BKSIZE_32K;
2091 		break;
2092 	}
2093 
2094 #ifndef USE_RX_BIG_BUF
2095 	nxge_rx_dma_attr.dma_attr_align = nxgep->sys_page_sz;
2096 #else
2097 		nxgep->rx_default_block_size = 0x2000;
2098 		nxgep->rx_bksize_code = RBR_BKSIZE_8K;
2099 #endif
2100 	/*
2101 	 * Get the system DMA burst size.
2102 	 */
2103 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, &nxge_tx_dma_attr,
2104 	    DDI_DMA_DONTWAIT, 0,
2105 	    &nxgep->dmasparehandle);
2106 	if (ddi_status != DDI_SUCCESS) {
2107 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2108 		    "ddi_dma_alloc_handle: failed "
2109 		    " status 0x%x", ddi_status));
2110 		goto nxge_get_soft_properties_exit;
2111 	}
2112 
2113 	ddi_status = ddi_dma_addr_bind_handle(nxgep->dmasparehandle, NULL,
2114 	    (caddr_t)nxgep->dmasparehandle,
2115 	    sizeof (nxgep->dmasparehandle),
2116 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2117 	    DDI_DMA_DONTWAIT, 0,
2118 	    &cookie, &count);
2119 	if (ddi_status != DDI_DMA_MAPPED) {
2120 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2121 		    "Binding spare handle to find system"
2122 		    " burstsize failed."));
2123 		ddi_status = DDI_FAILURE;
2124 		goto nxge_get_soft_properties_fail1;
2125 	}
2126 
2127 	nxgep->sys_burst_sz = ddi_dma_burstsizes(nxgep->dmasparehandle);
2128 	(void) ddi_dma_unbind_handle(nxgep->dmasparehandle);
2129 
2130 nxge_get_soft_properties_fail1:
2131 	ddi_dma_free_handle(&nxgep->dmasparehandle);
2132 
2133 nxge_get_soft_properties_exit:
2134 
2135 	if (ddi_status != DDI_SUCCESS)
2136 		status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2137 
2138 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
2139 	    "<== nxge_setup_system_dma_pages status = 0x%08x", status));
2140 	return (status);
2141 }
2142 
2143 static nxge_status_t
2144 nxge_alloc_mem_pool(p_nxge_t nxgep)
2145 {
2146 	nxge_status_t	status = NXGE_OK;
2147 
2148 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_alloc_mem_pool"));
2149 
2150 	status = nxge_alloc_rx_mem_pool(nxgep);
2151 	if (status != NXGE_OK) {
2152 		return (NXGE_ERROR);
2153 	}
2154 
2155 	status = nxge_alloc_tx_mem_pool(nxgep);
2156 	if (status != NXGE_OK) {
2157 		nxge_free_rx_mem_pool(nxgep);
2158 		return (NXGE_ERROR);
2159 	}
2160 
2161 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_alloc_mem_pool"));
2162 	return (NXGE_OK);
2163 }
2164 
2165 static void
2166 nxge_free_mem_pool(p_nxge_t nxgep)
2167 {
2168 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_mem_pool"));
2169 
2170 	nxge_free_rx_mem_pool(nxgep);
2171 	nxge_free_tx_mem_pool(nxgep);
2172 
2173 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_mem_pool"));
2174 }
2175 
2176 nxge_status_t
2177 nxge_alloc_rx_mem_pool(p_nxge_t nxgep)
2178 {
2179 	uint32_t		rdc_max;
2180 	p_nxge_dma_pt_cfg_t	p_all_cfgp;
2181 	p_nxge_hw_pt_cfg_t	p_cfgp;
2182 	p_nxge_dma_pool_t	dma_poolp;
2183 	p_nxge_dma_common_t	*dma_buf_p;
2184 	p_nxge_dma_pool_t	dma_cntl_poolp;
2185 	p_nxge_dma_common_t	*dma_cntl_p;
2186 	uint32_t 		*num_chunks; /* per dma */
2187 	nxge_status_t		status = NXGE_OK;
2188 
2189 	uint32_t		nxge_port_rbr_size;
2190 	uint32_t		nxge_port_rbr_spare_size;
2191 	uint32_t		nxge_port_rcr_size;
2192 	uint32_t		rx_cntl_alloc_size;
2193 
2194 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_mem_pool"));
2195 
2196 	p_all_cfgp = (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
2197 	p_cfgp = (p_nxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
2198 	rdc_max = NXGE_MAX_RDCS;
2199 
2200 	/*
2201 	 * Allocate memory for the common DMA data structures.
2202 	 */
2203 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2204 	    KM_SLEEP);
2205 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2206 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2207 
2208 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2209 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2210 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2211 	    sizeof (p_nxge_dma_common_t) * rdc_max, KM_SLEEP);
2212 
2213 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2214 	    sizeof (uint32_t) * rdc_max, KM_SLEEP);
2215 
2216 	/*
2217 	 * Assume that each DMA channel will be configured with
2218 	 * the default block size.
2219 	 * rbr block counts are modulo the batch count (16).
2220 	 */
2221 	nxge_port_rbr_size = p_all_cfgp->rbr_size;
2222 	nxge_port_rcr_size = p_all_cfgp->rcr_size;
2223 
2224 	if (!nxge_port_rbr_size) {
2225 		nxge_port_rbr_size = NXGE_RBR_RBB_DEFAULT;
2226 	}
2227 	if (nxge_port_rbr_size % NXGE_RXDMA_POST_BATCH) {
2228 		nxge_port_rbr_size = (NXGE_RXDMA_POST_BATCH *
2229 		    (nxge_port_rbr_size / NXGE_RXDMA_POST_BATCH + 1));
2230 	}
2231 
2232 	p_all_cfgp->rbr_size = nxge_port_rbr_size;
2233 	nxge_port_rbr_spare_size = nxge_rbr_spare_size;
2234 
2235 	if (nxge_port_rbr_spare_size % NXGE_RXDMA_POST_BATCH) {
2236 		nxge_port_rbr_spare_size = (NXGE_RXDMA_POST_BATCH *
2237 		    (nxge_port_rbr_spare_size / NXGE_RXDMA_POST_BATCH + 1));
2238 	}
2239 	if (nxge_port_rbr_size > RBR_DEFAULT_MAX_BLKS) {
2240 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2241 		    "nxge_alloc_rx_mem_pool: RBR size too high %d, "
2242 		    "set to default %d",
2243 		    nxge_port_rbr_size, RBR_DEFAULT_MAX_BLKS));
2244 		nxge_port_rbr_size = RBR_DEFAULT_MAX_BLKS;
2245 	}
2246 	if (nxge_port_rcr_size > RCR_DEFAULT_MAX) {
2247 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2248 		    "nxge_alloc_rx_mem_pool: RCR too high %d, "
2249 		    "set to default %d",
2250 		    nxge_port_rcr_size, RCR_DEFAULT_MAX));
2251 		nxge_port_rcr_size = RCR_DEFAULT_MAX;
2252 	}
2253 
2254 	/*
2255 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2256 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2257 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2258 	 * function).
2259 	 */
2260 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2261 	if (nxgep->niu_type == N2_NIU) {
2262 		nxge_port_rbr_spare_size = 0;
2263 		if ((nxge_port_rbr_size > NXGE_NIU_CONTIG_RBR_MAX) ||
2264 		    (!ISP2(nxge_port_rbr_size))) {
2265 			nxge_port_rbr_size = NXGE_NIU_CONTIG_RBR_MAX;
2266 		}
2267 		if ((nxge_port_rcr_size > NXGE_NIU_CONTIG_RCR_MAX) ||
2268 		    (!ISP2(nxge_port_rcr_size))) {
2269 			nxge_port_rcr_size = NXGE_NIU_CONTIG_RCR_MAX;
2270 		}
2271 	}
2272 #endif
2273 
2274 	/*
2275 	 * Addresses of receive block ring, receive completion ring and the
2276 	 * mailbox must be all cache-aligned (64 bytes).
2277 	 */
2278 	rx_cntl_alloc_size = nxge_port_rbr_size + nxge_port_rbr_spare_size;
2279 	rx_cntl_alloc_size *= (sizeof (rx_desc_t));
2280 	rx_cntl_alloc_size += (sizeof (rcr_entry_t) * nxge_port_rcr_size);
2281 	rx_cntl_alloc_size += sizeof (rxdma_mailbox_t);
2282 
2283 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_alloc_rx_mem_pool: "
2284 	    "nxge_port_rbr_size = %d nxge_port_rbr_spare_size = %d "
2285 	    "nxge_port_rcr_size = %d "
2286 	    "rx_cntl_alloc_size = %d",
2287 	    nxge_port_rbr_size, nxge_port_rbr_spare_size,
2288 	    nxge_port_rcr_size,
2289 	    rx_cntl_alloc_size));
2290 
2291 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2292 	if (nxgep->niu_type == N2_NIU) {
2293 		uint32_t rx_buf_alloc_size = (nxgep->rx_default_block_size *
2294 		    (nxge_port_rbr_size + nxge_port_rbr_spare_size));
2295 
2296 		if (!ISP2(rx_buf_alloc_size)) {
2297 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2298 			    "==> nxge_alloc_rx_mem_pool: "
2299 			    " must be power of 2"));
2300 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2301 			goto nxge_alloc_rx_mem_pool_exit;
2302 		}
2303 
2304 		if (rx_buf_alloc_size > (1 << 22)) {
2305 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2306 			    "==> nxge_alloc_rx_mem_pool: "
2307 			    " limit size to 4M"));
2308 			status |= (NXGE_ERROR | NXGE_DDI_FAILED);
2309 			goto nxge_alloc_rx_mem_pool_exit;
2310 		}
2311 
2312 		if (rx_cntl_alloc_size < 0x2000) {
2313 			rx_cntl_alloc_size = 0x2000;
2314 		}
2315 	}
2316 #endif
2317 	nxgep->nxge_port_rbr_size = nxge_port_rbr_size;
2318 	nxgep->nxge_port_rcr_size = nxge_port_rcr_size;
2319 	nxgep->nxge_port_rbr_spare_size = nxge_port_rbr_spare_size;
2320 	nxgep->nxge_port_rx_cntl_alloc_size = rx_cntl_alloc_size;
2321 
2322 	dma_poolp->ndmas = p_cfgp->max_rdcs;
2323 	dma_poolp->num_chunks = num_chunks;
2324 	dma_poolp->buf_allocated = B_TRUE;
2325 	nxgep->rx_buf_pool_p = dma_poolp;
2326 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2327 
2328 	dma_cntl_poolp->ndmas = p_cfgp->max_rdcs;
2329 	dma_cntl_poolp->buf_allocated = B_TRUE;
2330 	nxgep->rx_cntl_pool_p = dma_cntl_poolp;
2331 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2332 
2333 	/* Allocate the receive rings, too. */
2334 	nxgep->rx_rbr_rings =
2335 	    KMEM_ZALLOC(sizeof (rx_rbr_rings_t), KM_SLEEP);
2336 	nxgep->rx_rbr_rings->rbr_rings =
2337 	    KMEM_ZALLOC(sizeof (p_rx_rbr_ring_t) * rdc_max, KM_SLEEP);
2338 	nxgep->rx_rcr_rings =
2339 	    KMEM_ZALLOC(sizeof (rx_rcr_rings_t), KM_SLEEP);
2340 	nxgep->rx_rcr_rings->rcr_rings =
2341 	    KMEM_ZALLOC(sizeof (p_rx_rcr_ring_t) * rdc_max, KM_SLEEP);
2342 	nxgep->rx_mbox_areas_p =
2343 	    KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
2344 	nxgep->rx_mbox_areas_p->rxmbox_areas =
2345 	    KMEM_ZALLOC(sizeof (p_rx_mbox_t) * rdc_max, KM_SLEEP);
2346 
2347 	nxgep->rx_rbr_rings->ndmas = nxgep->rx_rcr_rings->ndmas =
2348 	    p_cfgp->max_rdcs;
2349 
2350 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2351 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2352 
2353 nxge_alloc_rx_mem_pool_exit:
2354 	return (status);
2355 }
2356 
2357 /*
2358  * nxge_alloc_rxb
2359  *
2360  *	Allocate buffers for an RDC.
2361  *
2362  * Arguments:
2363  * 	nxgep
2364  * 	channel	The channel to map into our kernel space.
2365  *
2366  * Notes:
2367  *
2368  * NPI function calls:
2369  *
2370  * NXGE function calls:
2371  *
2372  * Registers accessed:
2373  *
2374  * Context:
2375  *
2376  * Taking apart:
2377  *
2378  * Open questions:
2379  *
2380  */
2381 nxge_status_t
2382 nxge_alloc_rxb(
2383 	p_nxge_t nxgep,
2384 	int channel)
2385 {
2386 	size_t			rx_buf_alloc_size;
2387 	nxge_status_t		status = NXGE_OK;
2388 
2389 	nxge_dma_common_t	**data;
2390 	nxge_dma_common_t	**control;
2391 	uint32_t 		*num_chunks;
2392 
2393 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2394 
2395 	/*
2396 	 * Allocate memory for the receive buffers and descriptor rings.
2397 	 * Replace these allocation functions with the interface functions
2398 	 * provided by the partition manager if/when they are available.
2399 	 */
2400 
2401 	/*
2402 	 * Allocate memory for the receive buffer blocks.
2403 	 */
2404 	rx_buf_alloc_size = (nxgep->rx_default_block_size *
2405 	    (nxgep->nxge_port_rbr_size + nxgep->nxge_port_rbr_spare_size));
2406 
2407 	data = &nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2408 	num_chunks = &nxgep->rx_buf_pool_p->num_chunks[channel];
2409 
2410 	if ((status = nxge_alloc_rx_buf_dma(
2411 	    nxgep, channel, data, rx_buf_alloc_size,
2412 	    nxgep->rx_default_block_size, num_chunks)) != NXGE_OK) {
2413 		return (status);
2414 	}
2415 
2416 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_alloc_rxb(): "
2417 	    "dma %d dma_buf_p %llx &dma_buf_p %llx", channel, *data, data));
2418 
2419 	/*
2420 	 * Allocate memory for descriptor rings and mailbox.
2421 	 */
2422 	control = &nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2423 
2424 	if ((status = nxge_alloc_rx_cntl_dma(
2425 	    nxgep, channel, control, nxgep->nxge_port_rx_cntl_alloc_size))
2426 	    != NXGE_OK) {
2427 		nxge_free_rx_cntl_dma(nxgep, *control);
2428 		(*data)->buf_alloc_state |= BUF_ALLOCATED_WAIT_FREE;
2429 		nxge_free_rx_buf_dma(nxgep, *data, *num_chunks);
2430 		return (status);
2431 	}
2432 
2433 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2434 	    "<== nxge_alloc_rx_mem_pool:status 0x%08x", status));
2435 
2436 	return (status);
2437 }
2438 
2439 void
2440 nxge_free_rxb(
2441 	p_nxge_t nxgep,
2442 	int channel)
2443 {
2444 	nxge_dma_common_t	*data;
2445 	nxge_dma_common_t	*control;
2446 	uint32_t 		num_chunks;
2447 
2448 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rbb"));
2449 
2450 	data = nxgep->rx_buf_pool_p->dma_buf_pool_p[channel];
2451 	num_chunks = nxgep->rx_buf_pool_p->num_chunks[channel];
2452 	nxge_free_rx_buf_dma(nxgep, data, num_chunks);
2453 
2454 	nxgep->rx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2455 	nxgep->rx_buf_pool_p->num_chunks[channel] = 0;
2456 
2457 	control = nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel];
2458 	nxge_free_rx_cntl_dma(nxgep, control);
2459 
2460 	nxgep->rx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2461 
2462 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2463 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2464 
2465 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_alloc_rbb"));
2466 }
2467 
2468 static void
2469 nxge_free_rx_mem_pool(p_nxge_t nxgep)
2470 {
2471 	int rdc_max = NXGE_MAX_RDCS;
2472 
2473 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_mem_pool"));
2474 
2475 	if (!nxgep->rx_buf_pool_p || !nxgep->rx_buf_pool_p->buf_allocated) {
2476 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2477 		    "<== nxge_free_rx_mem_pool "
2478 		    "(null rx buf pool or buf not allocated"));
2479 		return;
2480 	}
2481 	if (!nxgep->rx_cntl_pool_p || !nxgep->rx_cntl_pool_p->buf_allocated) {
2482 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2483 		    "<== nxge_free_rx_mem_pool "
2484 		    "(null rx cntl buf pool or cntl buf not allocated"));
2485 		return;
2486 	}
2487 
2488 	KMEM_FREE(nxgep->rx_cntl_pool_p->dma_buf_pool_p,
2489 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2490 	KMEM_FREE(nxgep->rx_cntl_pool_p, sizeof (nxge_dma_pool_t));
2491 
2492 	KMEM_FREE(nxgep->rx_buf_pool_p->num_chunks,
2493 	    sizeof (uint32_t) * rdc_max);
2494 	KMEM_FREE(nxgep->rx_buf_pool_p->dma_buf_pool_p,
2495 	    sizeof (p_nxge_dma_common_t) * rdc_max);
2496 	KMEM_FREE(nxgep->rx_buf_pool_p, sizeof (nxge_dma_pool_t));
2497 
2498 	nxgep->rx_buf_pool_p = 0;
2499 	nxgep->rx_cntl_pool_p = 0;
2500 
2501 	KMEM_FREE(nxgep->rx_rbr_rings->rbr_rings,
2502 	    sizeof (p_rx_rbr_ring_t) * rdc_max);
2503 	KMEM_FREE(nxgep->rx_rbr_rings, sizeof (rx_rbr_rings_t));
2504 	KMEM_FREE(nxgep->rx_rcr_rings->rcr_rings,
2505 	    sizeof (p_rx_rcr_ring_t) * rdc_max);
2506 	KMEM_FREE(nxgep->rx_rcr_rings, sizeof (rx_rcr_rings_t));
2507 	KMEM_FREE(nxgep->rx_mbox_areas_p->rxmbox_areas,
2508 	    sizeof (p_rx_mbox_t) * rdc_max);
2509 	KMEM_FREE(nxgep->rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
2510 
2511 	nxgep->rx_rbr_rings = 0;
2512 	nxgep->rx_rcr_rings = 0;
2513 	nxgep->rx_mbox_areas_p = 0;
2514 
2515 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_rx_mem_pool"));
2516 }
2517 
2518 
2519 static nxge_status_t
2520 nxge_alloc_rx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
2521 	p_nxge_dma_common_t *dmap,
2522 	size_t alloc_size, size_t block_size, uint32_t *num_chunks)
2523 {
2524 	p_nxge_dma_common_t 	rx_dmap;
2525 	nxge_status_t		status = NXGE_OK;
2526 	size_t			total_alloc_size;
2527 	size_t			allocated = 0;
2528 	int			i, size_index, array_size;
2529 	boolean_t		use_kmem_alloc = B_FALSE;
2530 
2531 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_buf_dma"));
2532 
2533 	rx_dmap = (p_nxge_dma_common_t)
2534 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
2535 	    KM_SLEEP);
2536 
2537 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2538 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
2539 	    dma_channel, alloc_size, block_size, dmap));
2540 
2541 	total_alloc_size = alloc_size;
2542 
2543 #if defined(RX_USE_RECLAIM_POST)
2544 	total_alloc_size = alloc_size + alloc_size/4;
2545 #endif
2546 
2547 	i = 0;
2548 	size_index = 0;
2549 	array_size =  sizeof (alloc_sizes)/sizeof (size_t);
2550 	while ((alloc_sizes[size_index] < alloc_size) &&
2551 	    (size_index < array_size))
2552 		size_index++;
2553 	if (size_index >= array_size) {
2554 		size_index = array_size - 1;
2555 	}
2556 
2557 	/* For Neptune, use kmem_alloc if the kmem flag is set. */
2558 	if (nxgep->niu_type != N2_NIU && nxge_use_kmem_alloc) {
2559 		use_kmem_alloc = B_TRUE;
2560 #if defined(__i386) || defined(__amd64)
2561 		size_index = 0;
2562 #endif
2563 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2564 		    "==> nxge_alloc_rx_buf_dma: "
2565 		    "Neptune use kmem_alloc() - size_index %d",
2566 		    size_index));
2567 	}
2568 
2569 	while ((allocated < total_alloc_size) &&
2570 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
2571 		rx_dmap[i].dma_chunk_index = i;
2572 		rx_dmap[i].block_size = block_size;
2573 		rx_dmap[i].alength = alloc_sizes[size_index];
2574 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
2575 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2576 		rx_dmap[i].dma_channel = dma_channel;
2577 		rx_dmap[i].contig_alloc_type = B_FALSE;
2578 		rx_dmap[i].kmem_alloc_type = B_FALSE;
2579 		rx_dmap[i].buf_alloc_type = DDI_MEM_ALLOC;
2580 
2581 		/*
2582 		 * N2/NIU: data buffers must be contiguous as the driver
2583 		 *	   needs to call Hypervisor api to set up
2584 		 *	   logical pages.
2585 		 */
2586 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
2587 			rx_dmap[i].contig_alloc_type = B_TRUE;
2588 			rx_dmap[i].buf_alloc_type = CONTIG_MEM_ALLOC;
2589 		} else if (use_kmem_alloc) {
2590 			/* For Neptune, use kmem_alloc */
2591 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2592 			    "==> nxge_alloc_rx_buf_dma: "
2593 			    "Neptune use kmem_alloc()"));
2594 			rx_dmap[i].kmem_alloc_type = B_TRUE;
2595 			rx_dmap[i].buf_alloc_type = KMEM_ALLOC;
2596 		}
2597 
2598 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2599 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
2600 		    "i %d nblocks %d alength %d",
2601 		    dma_channel, i, &rx_dmap[i], block_size,
2602 		    i, rx_dmap[i].nblocks,
2603 		    rx_dmap[i].alength));
2604 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2605 		    &nxge_rx_dma_attr,
2606 		    rx_dmap[i].alength,
2607 		    &nxge_dev_buf_dma_acc_attr,
2608 		    DDI_DMA_READ | DDI_DMA_STREAMING,
2609 		    (p_nxge_dma_common_t)(&rx_dmap[i]));
2610 		if (status != NXGE_OK) {
2611 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2612 			    "nxge_alloc_rx_buf_dma: Alloc Failed: "
2613 			    "dma %d size_index %d size requested %d",
2614 			    dma_channel,
2615 			    size_index,
2616 			    rx_dmap[i].alength));
2617 			size_index--;
2618 		} else {
2619 			rx_dmap[i].buf_alloc_state = BUF_ALLOCATED;
2620 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2621 			    " nxge_alloc_rx_buf_dma DONE  alloc mem: "
2622 			    "dma %d dma_buf_p $%p kaddrp $%p alength %d "
2623 			    "buf_alloc_state %d alloc_type %d",
2624 			    dma_channel,
2625 			    &rx_dmap[i],
2626 			    rx_dmap[i].kaddrp,
2627 			    rx_dmap[i].alength,
2628 			    rx_dmap[i].buf_alloc_state,
2629 			    rx_dmap[i].buf_alloc_type));
2630 			NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2631 			    " alloc_rx_buf_dma allocated rdc %d "
2632 			    "chunk %d size %x dvma %x bufp %llx kaddrp $%p",
2633 			    dma_channel, i, rx_dmap[i].alength,
2634 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i],
2635 			    rx_dmap[i].kaddrp));
2636 			i++;
2637 			allocated += alloc_sizes[size_index];
2638 		}
2639 	}
2640 
2641 	if (allocated < total_alloc_size) {
2642 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2643 		    "==> nxge_alloc_rx_buf_dma: not enough for channel %d "
2644 		    "allocated 0x%x requested 0x%x",
2645 		    dma_channel,
2646 		    allocated, total_alloc_size));
2647 		status = NXGE_ERROR;
2648 		goto nxge_alloc_rx_mem_fail1;
2649 	}
2650 
2651 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2652 	    "==> nxge_alloc_rx_buf_dma: Allocated for channel %d "
2653 	    "allocated 0x%x requested 0x%x",
2654 	    dma_channel,
2655 	    allocated, total_alloc_size));
2656 
2657 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2658 	    " alloc_rx_buf_dma rdc %d allocated %d chunks",
2659 	    dma_channel, i));
2660 	*num_chunks = i;
2661 	*dmap = rx_dmap;
2662 
2663 	goto nxge_alloc_rx_mem_exit;
2664 
2665 nxge_alloc_rx_mem_fail1:
2666 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2667 
2668 nxge_alloc_rx_mem_exit:
2669 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2670 	    "<== nxge_alloc_rx_buf_dma status 0x%08x", status));
2671 
2672 	return (status);
2673 }
2674 
2675 /*ARGSUSED*/
2676 static void
2677 nxge_free_rx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
2678     uint32_t num_chunks)
2679 {
2680 	int		i;
2681 
2682 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2683 	    "==> nxge_free_rx_buf_dma: # of chunks %d", num_chunks));
2684 
2685 	if (dmap == 0)
2686 		return;
2687 
2688 	for (i = 0; i < num_chunks; i++) {
2689 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
2690 		    "==> nxge_free_rx_buf_dma: chunk %d dmap 0x%llx",
2691 		    i, dmap));
2692 		nxge_dma_free_rx_data_buf(dmap++);
2693 	}
2694 
2695 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_rx_buf_dma"));
2696 }
2697 
2698 /*ARGSUSED*/
2699 static nxge_status_t
2700 nxge_alloc_rx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
2701     p_nxge_dma_common_t *dmap, size_t size)
2702 {
2703 	p_nxge_dma_common_t 	rx_dmap;
2704 	nxge_status_t		status = NXGE_OK;
2705 
2706 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_rx_cntl_dma"));
2707 
2708 	rx_dmap = (p_nxge_dma_common_t)
2709 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
2710 
2711 	rx_dmap->contig_alloc_type = B_FALSE;
2712 	rx_dmap->kmem_alloc_type = B_FALSE;
2713 
2714 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
2715 	    &nxge_desc_dma_attr,
2716 	    size,
2717 	    &nxge_dev_desc_dma_acc_attr,
2718 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
2719 	    rx_dmap);
2720 	if (status != NXGE_OK) {
2721 		goto nxge_alloc_rx_cntl_dma_fail1;
2722 	}
2723 
2724 	*dmap = rx_dmap;
2725 	goto nxge_alloc_rx_cntl_dma_exit;
2726 
2727 nxge_alloc_rx_cntl_dma_fail1:
2728 	KMEM_FREE(rx_dmap, sizeof (nxge_dma_common_t));
2729 
2730 nxge_alloc_rx_cntl_dma_exit:
2731 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2732 	    "<== nxge_alloc_rx_cntl_dma status 0x%08x", status));
2733 
2734 	return (status);
2735 }
2736 
2737 /*ARGSUSED*/
2738 static void
2739 nxge_free_rx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
2740 {
2741 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_rx_cntl_dma"));
2742 
2743 	if (dmap == 0)
2744 		return;
2745 
2746 	nxge_dma_mem_free(dmap);
2747 
2748 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_rx_cntl_dma"));
2749 }
2750 
2751 typedef struct {
2752 	size_t	tx_size;
2753 	size_t	cr_size;
2754 	size_t	threshhold;
2755 } nxge_tdc_sizes_t;
2756 
2757 static
2758 nxge_status_t
2759 nxge_tdc_sizes(
2760 	nxge_t *nxgep,
2761 	nxge_tdc_sizes_t *sizes)
2762 {
2763 	uint32_t threshhold;	/* The bcopy() threshhold */
2764 	size_t tx_size;		/* Transmit buffer size */
2765 	size_t cr_size;		/* Completion ring size */
2766 
2767 	/*
2768 	 * Assume that each DMA channel will be configured with the
2769 	 * default transmit buffer size for copying transmit data.
2770 	 * (If a packet is bigger than this, it will not be copied.)
2771 	 */
2772 	if (nxgep->niu_type == N2_NIU) {
2773 		threshhold = TX_BCOPY_SIZE;
2774 	} else {
2775 		threshhold = nxge_bcopy_thresh;
2776 	}
2777 	tx_size = nxge_tx_ring_size * threshhold;
2778 
2779 	cr_size = nxge_tx_ring_size * sizeof (tx_desc_t);
2780 	cr_size += sizeof (txdma_mailbox_t);
2781 
2782 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2783 	if (nxgep->niu_type == N2_NIU) {
2784 		if (!ISP2(tx_size)) {
2785 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2786 			    "==> nxge_tdc_sizes: Tx size"
2787 			    " must be power of 2"));
2788 			return (NXGE_ERROR);
2789 		}
2790 
2791 		if (tx_size > (1 << 22)) {
2792 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
2793 			    "==> nxge_tdc_sizes: Tx size"
2794 			    " limited to 4M"));
2795 			return (NXGE_ERROR);
2796 		}
2797 
2798 		if (cr_size < 0x2000)
2799 			cr_size = 0x2000;
2800 	}
2801 #endif
2802 
2803 	sizes->threshhold = threshhold;
2804 	sizes->tx_size = tx_size;
2805 	sizes->cr_size = cr_size;
2806 
2807 	return (NXGE_OK);
2808 }
2809 /*
2810  * nxge_alloc_txb
2811  *
2812  *	Allocate buffers for an TDC.
2813  *
2814  * Arguments:
2815  * 	nxgep
2816  * 	channel	The channel to map into our kernel space.
2817  *
2818  * Notes:
2819  *
2820  * NPI function calls:
2821  *
2822  * NXGE function calls:
2823  *
2824  * Registers accessed:
2825  *
2826  * Context:
2827  *
2828  * Taking apart:
2829  *
2830  * Open questions:
2831  *
2832  */
2833 nxge_status_t
2834 nxge_alloc_txb(
2835 	p_nxge_t nxgep,
2836 	int channel)
2837 {
2838 	nxge_dma_common_t	**dma_buf_p;
2839 	nxge_dma_common_t	**dma_cntl_p;
2840 	uint32_t 		*num_chunks;
2841 	nxge_status_t		status = NXGE_OK;
2842 
2843 	nxge_tdc_sizes_t	sizes;
2844 
2845 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tbb"));
2846 
2847 	if (nxge_tdc_sizes(nxgep, &sizes) != NXGE_OK)
2848 		return (NXGE_ERROR);
2849 
2850 	/*
2851 	 * Allocate memory for transmit buffers and descriptor rings.
2852 	 * Replace these allocation functions with the interface functions
2853 	 * provided by the partition manager Real Soon Now.
2854 	 */
2855 	dma_buf_p = &nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2856 	num_chunks = &nxgep->tx_buf_pool_p->num_chunks[channel];
2857 
2858 	dma_cntl_p = &nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2859 
2860 	/*
2861 	 * Allocate memory for transmit buffers and descriptor rings.
2862 	 * Replace allocation functions with interface functions provided
2863 	 * by the partition manager when it is available.
2864 	 *
2865 	 * Allocate memory for the transmit buffer pool.
2866 	 */
2867 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
2868 	    "sizes: tx: %ld, cr:%ld, th:%ld",
2869 	    sizes.tx_size, sizes.cr_size, sizes.threshhold));
2870 
2871 	*num_chunks = 0;
2872 	status = nxge_alloc_tx_buf_dma(nxgep, channel, dma_buf_p,
2873 	    sizes.tx_size, sizes.threshhold, num_chunks);
2874 	if (status != NXGE_OK) {
2875 		cmn_err(CE_NOTE, "nxge_alloc_tx_buf_dma failed!");
2876 		return (status);
2877 	}
2878 
2879 	/*
2880 	 * Allocate memory for descriptor rings and mailbox.
2881 	 */
2882 	status = nxge_alloc_tx_cntl_dma(nxgep, channel, dma_cntl_p,
2883 	    sizes.cr_size);
2884 	if (status != NXGE_OK) {
2885 		nxge_free_tx_buf_dma(nxgep, *dma_buf_p, *num_chunks);
2886 		cmn_err(CE_NOTE, "nxge_alloc_tx_cntl_dma failed!");
2887 		return (status);
2888 	}
2889 
2890 	return (NXGE_OK);
2891 }
2892 
2893 void
2894 nxge_free_txb(
2895 	p_nxge_t nxgep,
2896 	int channel)
2897 {
2898 	nxge_dma_common_t	*data;
2899 	nxge_dma_common_t	*control;
2900 	uint32_t 		num_chunks;
2901 
2902 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_txb"));
2903 
2904 	data = nxgep->tx_buf_pool_p->dma_buf_pool_p[channel];
2905 	num_chunks = nxgep->tx_buf_pool_p->num_chunks[channel];
2906 	nxge_free_tx_buf_dma(nxgep, data, num_chunks);
2907 
2908 	nxgep->tx_buf_pool_p->dma_buf_pool_p[channel] = 0;
2909 	nxgep->tx_buf_pool_p->num_chunks[channel] = 0;
2910 
2911 	control = nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel];
2912 	nxge_free_tx_cntl_dma(nxgep, control);
2913 
2914 	nxgep->tx_cntl_pool_p->dma_buf_pool_p[channel] = 0;
2915 
2916 	KMEM_FREE(data, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
2917 	KMEM_FREE(control, sizeof (nxge_dma_common_t));
2918 
2919 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_txb"));
2920 }
2921 
2922 /*
2923  * nxge_alloc_tx_mem_pool
2924  *
2925  *	This function allocates all of the per-port TDC control data structures.
2926  *	The per-channel (TDC) data structures are allocated when needed.
2927  *
2928  * Arguments:
2929  * 	nxgep
2930  *
2931  * Notes:
2932  *
2933  * Context:
2934  *	Any domain
2935  */
2936 nxge_status_t
2937 nxge_alloc_tx_mem_pool(p_nxge_t nxgep)
2938 {
2939 	nxge_hw_pt_cfg_t	*p_cfgp;
2940 	nxge_dma_pool_t		*dma_poolp;
2941 	nxge_dma_common_t	**dma_buf_p;
2942 	nxge_dma_pool_t		*dma_cntl_poolp;
2943 	nxge_dma_common_t	**dma_cntl_p;
2944 	uint32_t		*num_chunks; /* per dma */
2945 	int			tdc_max;
2946 
2947 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_alloc_tx_mem_pool"));
2948 
2949 	p_cfgp = &nxgep->pt_config.hw_config;
2950 	tdc_max = NXGE_MAX_TDCS;
2951 
2952 	/*
2953 	 * Allocate memory for each transmit DMA channel.
2954 	 */
2955 	dma_poolp = (p_nxge_dma_pool_t)KMEM_ZALLOC(sizeof (nxge_dma_pool_t),
2956 	    KM_SLEEP);
2957 	dma_buf_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2958 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2959 
2960 	dma_cntl_poolp = (p_nxge_dma_pool_t)
2961 	    KMEM_ZALLOC(sizeof (nxge_dma_pool_t), KM_SLEEP);
2962 	dma_cntl_p = (p_nxge_dma_common_t *)KMEM_ZALLOC(
2963 	    sizeof (p_nxge_dma_common_t) * tdc_max, KM_SLEEP);
2964 
2965 	if (nxge_tx_ring_size > TDC_DEFAULT_MAX) {
2966 		NXGE_DEBUG_MSG((nxgep, MEM_CTL,
2967 		    "nxge_alloc_tx_mem_pool: TDC too high %d, "
2968 		    "set to default %d",
2969 		    nxge_tx_ring_size, TDC_DEFAULT_MAX));
2970 		nxge_tx_ring_size = TDC_DEFAULT_MAX;
2971 	}
2972 
2973 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
2974 	/*
2975 	 * N2/NIU has limitation on the descriptor sizes (contiguous
2976 	 * memory allocation on data buffers to 4M (contig_mem_alloc)
2977 	 * and little endian for control buffers (must use the ddi/dki mem alloc
2978 	 * function). The transmit ring is limited to 8K (includes the
2979 	 * mailbox).
2980 	 */
2981 	if (nxgep->niu_type == N2_NIU) {
2982 		if ((nxge_tx_ring_size > NXGE_NIU_CONTIG_TX_MAX) ||
2983 		    (!ISP2(nxge_tx_ring_size))) {
2984 			nxge_tx_ring_size = NXGE_NIU_CONTIG_TX_MAX;
2985 		}
2986 	}
2987 #endif
2988 
2989 	nxgep->nxge_port_tx_ring_size = nxge_tx_ring_size;
2990 
2991 	num_chunks = (uint32_t *)KMEM_ZALLOC(
2992 	    sizeof (uint32_t) * tdc_max, KM_SLEEP);
2993 
2994 	dma_poolp->ndmas = p_cfgp->tdc.owned;
2995 	dma_poolp->num_chunks = num_chunks;
2996 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2997 	nxgep->tx_buf_pool_p = dma_poolp;
2998 
2999 	dma_poolp->buf_allocated = B_TRUE;
3000 
3001 	dma_cntl_poolp->ndmas = p_cfgp->tdc.owned;
3002 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
3003 	nxgep->tx_cntl_pool_p = dma_cntl_poolp;
3004 
3005 	dma_cntl_poolp->buf_allocated = B_TRUE;
3006 
3007 	nxgep->tx_rings =
3008 	    KMEM_ZALLOC(sizeof (tx_rings_t), KM_SLEEP);
3009 	nxgep->tx_rings->rings =
3010 	    KMEM_ZALLOC(sizeof (p_tx_ring_t) * tdc_max, KM_SLEEP);
3011 	nxgep->tx_mbox_areas_p =
3012 	    KMEM_ZALLOC(sizeof (tx_mbox_areas_t), KM_SLEEP);
3013 	nxgep->tx_mbox_areas_p->txmbox_areas_p =
3014 	    KMEM_ZALLOC(sizeof (p_tx_mbox_t) * tdc_max, KM_SLEEP);
3015 
3016 	nxgep->tx_rings->ndmas = p_cfgp->tdc.owned;
3017 
3018 	NXGE_DEBUG_MSG((nxgep, MEM_CTL,
3019 	    "==> nxge_alloc_tx_mem_pool: ndmas %d poolp->ndmas %d",
3020 	    tdc_max, dma_poolp->ndmas));
3021 
3022 	return (NXGE_OK);
3023 }
3024 
3025 nxge_status_t
3026 nxge_alloc_tx_buf_dma(p_nxge_t nxgep, uint16_t dma_channel,
3027     p_nxge_dma_common_t *dmap, size_t alloc_size,
3028     size_t block_size, uint32_t *num_chunks)
3029 {
3030 	p_nxge_dma_common_t 	tx_dmap;
3031 	nxge_status_t		status = NXGE_OK;
3032 	size_t			total_alloc_size;
3033 	size_t			allocated = 0;
3034 	int			i, size_index, array_size;
3035 
3036 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_buf_dma"));
3037 
3038 	tx_dmap = (p_nxge_dma_common_t)
3039 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK,
3040 	    KM_SLEEP);
3041 
3042 	total_alloc_size = alloc_size;
3043 	i = 0;
3044 	size_index = 0;
3045 	array_size =  sizeof (alloc_sizes) /  sizeof (size_t);
3046 	while ((alloc_sizes[size_index] < alloc_size) &&
3047 	    (size_index < array_size))
3048 		size_index++;
3049 	if (size_index >= array_size) {
3050 		size_index = array_size - 1;
3051 	}
3052 
3053 	while ((allocated < total_alloc_size) &&
3054 	    (size_index >= 0) && (i < NXGE_DMA_BLOCK)) {
3055 
3056 		tx_dmap[i].dma_chunk_index = i;
3057 		tx_dmap[i].block_size = block_size;
3058 		tx_dmap[i].alength = alloc_sizes[size_index];
3059 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
3060 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
3061 		tx_dmap[i].dma_channel = dma_channel;
3062 		tx_dmap[i].contig_alloc_type = B_FALSE;
3063 		tx_dmap[i].kmem_alloc_type = B_FALSE;
3064 
3065 		/*
3066 		 * N2/NIU: data buffers must be contiguous as the driver
3067 		 *	   needs to call Hypervisor api to set up
3068 		 *	   logical pages.
3069 		 */
3070 		if ((nxgep->niu_type == N2_NIU) && (NXGE_DMA_BLOCK == 1)) {
3071 			tx_dmap[i].contig_alloc_type = B_TRUE;
3072 		}
3073 
3074 		status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3075 		    &nxge_tx_dma_attr,
3076 		    tx_dmap[i].alength,
3077 		    &nxge_dev_buf_dma_acc_attr,
3078 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
3079 		    (p_nxge_dma_common_t)(&tx_dmap[i]));
3080 		if (status != NXGE_OK) {
3081 			size_index--;
3082 		} else {
3083 			i++;
3084 			allocated += alloc_sizes[size_index];
3085 		}
3086 	}
3087 
3088 	if (allocated < total_alloc_size) {
3089 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3090 		    "==> nxge_alloc_tx_buf_dma: not enough channel %d: "
3091 		    "allocated 0x%x requested 0x%x",
3092 		    dma_channel,
3093 		    allocated, total_alloc_size));
3094 		status = NXGE_ERROR;
3095 		goto nxge_alloc_tx_mem_fail1;
3096 	}
3097 
3098 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3099 	    "==> nxge_alloc_tx_buf_dma: Allocated for channel %d: "
3100 	    "allocated 0x%x requested 0x%x",
3101 	    dma_channel,
3102 	    allocated, total_alloc_size));
3103 
3104 	*num_chunks = i;
3105 	*dmap = tx_dmap;
3106 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3107 	    "==> nxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
3108 	    *dmap, i));
3109 	goto nxge_alloc_tx_mem_exit;
3110 
3111 nxge_alloc_tx_mem_fail1:
3112 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t) * NXGE_DMA_BLOCK);
3113 
3114 nxge_alloc_tx_mem_exit:
3115 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3116 	    "<== nxge_alloc_tx_buf_dma status 0x%08x", status));
3117 
3118 	return (status);
3119 }
3120 
3121 /*ARGSUSED*/
3122 static void
3123 nxge_free_tx_buf_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap,
3124     uint32_t num_chunks)
3125 {
3126 	int		i;
3127 
3128 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "==> nxge_free_tx_buf_dma"));
3129 
3130 	if (dmap == 0)
3131 		return;
3132 
3133 	for (i = 0; i < num_chunks; i++) {
3134 		nxge_dma_mem_free(dmap++);
3135 	}
3136 
3137 	NXGE_DEBUG_MSG((nxgep, MEM_CTL, "<== nxge_free_tx_buf_dma"));
3138 }
3139 
3140 /*ARGSUSED*/
3141 nxge_status_t
3142 nxge_alloc_tx_cntl_dma(p_nxge_t nxgep, uint16_t dma_channel,
3143     p_nxge_dma_common_t *dmap, size_t size)
3144 {
3145 	p_nxge_dma_common_t 	tx_dmap;
3146 	nxge_status_t		status = NXGE_OK;
3147 
3148 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_alloc_tx_cntl_dma"));
3149 	tx_dmap = (p_nxge_dma_common_t)
3150 	    KMEM_ZALLOC(sizeof (nxge_dma_common_t), KM_SLEEP);
3151 
3152 	tx_dmap->contig_alloc_type = B_FALSE;
3153 	tx_dmap->kmem_alloc_type = B_FALSE;
3154 
3155 	status = nxge_dma_mem_alloc(nxgep, nxge_force_dma,
3156 	    &nxge_desc_dma_attr,
3157 	    size,
3158 	    &nxge_dev_desc_dma_acc_attr,
3159 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
3160 	    tx_dmap);
3161 	if (status != NXGE_OK) {
3162 		goto nxge_alloc_tx_cntl_dma_fail1;
3163 	}
3164 
3165 	*dmap = tx_dmap;
3166 	goto nxge_alloc_tx_cntl_dma_exit;
3167 
3168 nxge_alloc_tx_cntl_dma_fail1:
3169 	KMEM_FREE(tx_dmap, sizeof (nxge_dma_common_t));
3170 
3171 nxge_alloc_tx_cntl_dma_exit:
3172 	NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3173 	    "<== nxge_alloc_tx_cntl_dma status 0x%08x", status));
3174 
3175 	return (status);
3176 }
3177 
3178 /*ARGSUSED*/
3179 static void
3180 nxge_free_tx_cntl_dma(p_nxge_t nxgep, p_nxge_dma_common_t dmap)
3181 {
3182 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "==> nxge_free_tx_cntl_dma"));
3183 
3184 	if (dmap == 0)
3185 		return;
3186 
3187 	nxge_dma_mem_free(dmap);
3188 
3189 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_free_tx_cntl_dma"));
3190 }
3191 
3192 /*
3193  * nxge_free_tx_mem_pool
3194  *
3195  *	This function frees all of the per-port TDC control data structures.
3196  *	The per-channel (TDC) data structures are freed when the channel
3197  *	is stopped.
3198  *
3199  * Arguments:
3200  * 	nxgep
3201  *
3202  * Notes:
3203  *
3204  * Context:
3205  *	Any domain
3206  */
3207 static void
3208 nxge_free_tx_mem_pool(p_nxge_t nxgep)
3209 {
3210 	int tdc_max = NXGE_MAX_TDCS;
3211 
3212 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "==> nxge_free_tx_mem_pool"));
3213 
3214 	if (!nxgep->tx_buf_pool_p || !nxgep->tx_buf_pool_p->buf_allocated) {
3215 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3216 		    "<== nxge_free_tx_mem_pool "
3217 		    "(null tx buf pool or buf not allocated"));
3218 		return;
3219 	}
3220 	if (!nxgep->tx_cntl_pool_p || !nxgep->tx_cntl_pool_p->buf_allocated) {
3221 		NXGE_DEBUG_MSG((nxgep, MEM2_CTL,
3222 		    "<== nxge_free_tx_mem_pool "
3223 		    "(null tx cntl buf pool or cntl buf not allocated"));
3224 		return;
3225 	}
3226 
3227 	/* 1. Free the mailboxes. */
3228 	KMEM_FREE(nxgep->tx_mbox_areas_p->txmbox_areas_p,
3229 	    sizeof (p_tx_mbox_t) * tdc_max);
3230 	KMEM_FREE(nxgep->tx_mbox_areas_p, sizeof (tx_mbox_areas_t));
3231 
3232 	nxgep->tx_mbox_areas_p = 0;
3233 
3234 	/* 2. Free the transmit ring arrays. */
3235 	KMEM_FREE(nxgep->tx_rings->rings,
3236 	    sizeof (p_tx_ring_t) * tdc_max);
3237 	KMEM_FREE(nxgep->tx_rings, sizeof (tx_rings_t));
3238 
3239 	nxgep->tx_rings = 0;
3240 
3241 	/* 3. Free the completion ring data structures. */
3242 	KMEM_FREE(nxgep->tx_cntl_pool_p->dma_buf_pool_p,
3243 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3244 	KMEM_FREE(nxgep->tx_cntl_pool_p, sizeof (nxge_dma_pool_t));
3245 
3246 	nxgep->tx_cntl_pool_p = 0;
3247 
3248 	/* 4. Free the data ring data structures. */
3249 	KMEM_FREE(nxgep->tx_buf_pool_p->num_chunks,
3250 	    sizeof (uint32_t) * tdc_max);
3251 	KMEM_FREE(nxgep->tx_buf_pool_p->dma_buf_pool_p,
3252 	    sizeof (p_nxge_dma_common_t) * tdc_max);
3253 	KMEM_FREE(nxgep->tx_buf_pool_p, sizeof (nxge_dma_pool_t));
3254 
3255 	nxgep->tx_buf_pool_p = 0;
3256 
3257 	NXGE_DEBUG_MSG((nxgep, MEM2_CTL, "<== nxge_free_tx_mem_pool"));
3258 }
3259 
3260 /*ARGSUSED*/
3261 static nxge_status_t
3262 nxge_dma_mem_alloc(p_nxge_t nxgep, dma_method_t method,
3263 	struct ddi_dma_attr *dma_attrp,
3264 	size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
3265 	p_nxge_dma_common_t dma_p)
3266 {
3267 	caddr_t 		kaddrp;
3268 	int			ddi_status = DDI_SUCCESS;
3269 	boolean_t		contig_alloc_type;
3270 	boolean_t		kmem_alloc_type;
3271 
3272 	contig_alloc_type = dma_p->contig_alloc_type;
3273 
3274 	if (contig_alloc_type && (nxgep->niu_type != N2_NIU)) {
3275 		/*
3276 		 * contig_alloc_type for contiguous memory only allowed
3277 		 * for N2/NIU.
3278 		 */
3279 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3280 		    "nxge_dma_mem_alloc: alloc type not allowed (%d)",
3281 		    dma_p->contig_alloc_type));
3282 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3283 	}
3284 
3285 	dma_p->dma_handle = NULL;
3286 	dma_p->acc_handle = NULL;
3287 	dma_p->kaddrp = dma_p->last_kaddrp = NULL;
3288 	dma_p->first_ioaddr_pp = dma_p->last_ioaddr_pp = NULL;
3289 	ddi_status = ddi_dma_alloc_handle(nxgep->dip, dma_attrp,
3290 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
3291 	if (ddi_status != DDI_SUCCESS) {
3292 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3293 		    "nxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
3294 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3295 	}
3296 
3297 	kmem_alloc_type = dma_p->kmem_alloc_type;
3298 
3299 	switch (contig_alloc_type) {
3300 	case B_FALSE:
3301 		switch (kmem_alloc_type) {
3302 		case B_FALSE:
3303 			ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle,
3304 			    length,
3305 			    acc_attr_p,
3306 			    xfer_flags,
3307 			    DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
3308 			    &dma_p->acc_handle);
3309 			if (ddi_status != DDI_SUCCESS) {
3310 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3311 				    "nxge_dma_mem_alloc: "
3312 				    "ddi_dma_mem_alloc failed"));
3313 				ddi_dma_free_handle(&dma_p->dma_handle);
3314 				dma_p->dma_handle = NULL;
3315 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3316 			}
3317 			if (dma_p->alength < length) {
3318 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3319 				    "nxge_dma_mem_alloc:di_dma_mem_alloc "
3320 				    "< length."));
3321 				ddi_dma_mem_free(&dma_p->acc_handle);
3322 				ddi_dma_free_handle(&dma_p->dma_handle);
3323 				dma_p->acc_handle = NULL;
3324 				dma_p->dma_handle = NULL;
3325 				return (NXGE_ERROR);
3326 			}
3327 
3328 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3329 			    NULL,
3330 			    kaddrp, dma_p->alength, xfer_flags,
3331 			    DDI_DMA_DONTWAIT,
3332 			    0, &dma_p->dma_cookie, &dma_p->ncookies);
3333 			if (ddi_status != DDI_DMA_MAPPED) {
3334 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3335 				    "nxge_dma_mem_alloc: ddi_dma_addr_bind "
3336 				    "failed "
3337 				    "(staus 0x%x ncookies %d.)", ddi_status,
3338 				    dma_p->ncookies));
3339 				if (dma_p->acc_handle) {
3340 					ddi_dma_mem_free(&dma_p->acc_handle);
3341 					dma_p->acc_handle = NULL;
3342 				}
3343 				ddi_dma_free_handle(&dma_p->dma_handle);
3344 				dma_p->dma_handle = NULL;
3345 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3346 			}
3347 
3348 			if (dma_p->ncookies != 1) {
3349 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3350 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3351 				    "> 1 cookie"
3352 				    "(staus 0x%x ncookies %d.)", ddi_status,
3353 				    dma_p->ncookies));
3354 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3355 				if (dma_p->acc_handle) {
3356 					ddi_dma_mem_free(&dma_p->acc_handle);
3357 					dma_p->acc_handle = NULL;
3358 				}
3359 				ddi_dma_free_handle(&dma_p->dma_handle);
3360 				dma_p->dma_handle = NULL;
3361 				dma_p->acc_handle = NULL;
3362 				return (NXGE_ERROR);
3363 			}
3364 			break;
3365 
3366 		case B_TRUE:
3367 			kaddrp = KMEM_ALLOC(length, KM_NOSLEEP);
3368 			if (kaddrp == NULL) {
3369 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3370 				    "nxge_dma_mem_alloc:ddi_dma_mem_alloc "
3371 				    "kmem alloc failed"));
3372 				return (NXGE_ERROR);
3373 			}
3374 
3375 			dma_p->alength = length;
3376 			ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle,
3377 			    NULL, kaddrp, dma_p->alength, xfer_flags,
3378 			    DDI_DMA_DONTWAIT, 0,
3379 			    &dma_p->dma_cookie, &dma_p->ncookies);
3380 			if (ddi_status != DDI_DMA_MAPPED) {
3381 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3382 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind: "
3383 				    "(kmem_alloc) failed kaddrp $%p length %d "
3384 				    "(staus 0x%x (%d) ncookies %d.)",
3385 				    kaddrp, length,
3386 				    ddi_status, ddi_status, dma_p->ncookies));
3387 				KMEM_FREE(kaddrp, length);
3388 				dma_p->acc_handle = NULL;
3389 				ddi_dma_free_handle(&dma_p->dma_handle);
3390 				dma_p->dma_handle = NULL;
3391 				dma_p->kaddrp = NULL;
3392 				return (NXGE_ERROR | NXGE_DDI_FAILED);
3393 			}
3394 
3395 			if (dma_p->ncookies != 1) {
3396 				NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3397 				    "nxge_dma_mem_alloc:ddi_dma_addr_bind "
3398 				    "(kmem_alloc) > 1 cookie"
3399 				    "(staus 0x%x ncookies %d.)", ddi_status,
3400 				    dma_p->ncookies));
3401 				(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3402 				KMEM_FREE(kaddrp, length);
3403 				ddi_dma_free_handle(&dma_p->dma_handle);
3404 				dma_p->dma_handle = NULL;
3405 				dma_p->acc_handle = NULL;
3406 				dma_p->kaddrp = NULL;
3407 				return (NXGE_ERROR);
3408 			}
3409 
3410 			dma_p->kaddrp = kaddrp;
3411 
3412 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
3413 			    "nxge_dma_mem_alloc: kmem_alloc dmap $%p "
3414 			    "kaddr $%p alength %d",
3415 			    dma_p,
3416 			    kaddrp,
3417 			    dma_p->alength));
3418 			break;
3419 		}
3420 		break;
3421 
3422 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3423 	case B_TRUE:
3424 		kaddrp = (caddr_t)contig_mem_alloc(length);
3425 		if (kaddrp == NULL) {
3426 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3427 			    "nxge_dma_mem_alloc:contig_mem_alloc failed."));
3428 			ddi_dma_free_handle(&dma_p->dma_handle);
3429 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3430 		}
3431 
3432 		dma_p->alength = length;
3433 		ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
3434 		    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
3435 		    &dma_p->dma_cookie, &dma_p->ncookies);
3436 		if (ddi_status != DDI_DMA_MAPPED) {
3437 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3438 			    "nxge_dma_mem_alloc:di_dma_addr_bind failed "
3439 			    "(status 0x%x ncookies %d.)", ddi_status,
3440 			    dma_p->ncookies));
3441 
3442 			NXGE_DEBUG_MSG((nxgep, DMA_CTL,
3443 			    "==> nxge_dma_mem_alloc: (not mapped)"
3444 			    "length %lu (0x%x) "
3445 			    "free contig kaddrp $%p "
3446 			    "va_to_pa $%p",
3447 			    length, length,
3448 			    kaddrp,
3449 			    va_to_pa(kaddrp)));
3450 
3451 
3452 			contig_mem_free((void *)kaddrp, length);
3453 			ddi_dma_free_handle(&dma_p->dma_handle);
3454 
3455 			dma_p->dma_handle = NULL;
3456 			dma_p->acc_handle = NULL;
3457 			dma_p->alength = NULL;
3458 			dma_p->kaddrp = NULL;
3459 
3460 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3461 		}
3462 
3463 		if (dma_p->ncookies != 1 ||
3464 		    (dma_p->dma_cookie.dmac_laddress == NULL)) {
3465 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3466 			    "nxge_dma_mem_alloc:di_dma_addr_bind > 1 "
3467 			    "cookie or "
3468 			    "dmac_laddress is NULL $%p size %d "
3469 			    " (status 0x%x ncookies %d.)",
3470 			    ddi_status,
3471 			    dma_p->dma_cookie.dmac_laddress,
3472 			    dma_p->dma_cookie.dmac_size,
3473 			    dma_p->ncookies));
3474 
3475 			contig_mem_free((void *)kaddrp, length);
3476 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3477 			ddi_dma_free_handle(&dma_p->dma_handle);
3478 
3479 			dma_p->alength = 0;
3480 			dma_p->dma_handle = NULL;
3481 			dma_p->acc_handle = NULL;
3482 			dma_p->kaddrp = NULL;
3483 
3484 			return (NXGE_ERROR | NXGE_DDI_FAILED);
3485 		}
3486 		break;
3487 
3488 #else
3489 	case B_TRUE:
3490 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3491 		    "nxge_dma_mem_alloc: invalid alloc type for !sun4v"));
3492 		return (NXGE_ERROR | NXGE_DDI_FAILED);
3493 #endif
3494 	}
3495 
3496 	dma_p->kaddrp = kaddrp;
3497 	dma_p->last_kaddrp = (unsigned char *)kaddrp +
3498 	    dma_p->alength - RXBUF_64B_ALIGNED;
3499 #if defined(__i386)
3500 	dma_p->ioaddr_pp =
3501 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
3502 #else
3503 	dma_p->ioaddr_pp = (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3504 #endif
3505 	dma_p->last_ioaddr_pp =
3506 #if defined(__i386)
3507 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress +
3508 #else
3509 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress +
3510 #endif
3511 	    dma_p->alength - RXBUF_64B_ALIGNED;
3512 
3513 	NPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
3514 
3515 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3516 	dma_p->orig_ioaddr_pp =
3517 	    (unsigned char *)dma_p->dma_cookie.dmac_laddress;
3518 	dma_p->orig_alength = length;
3519 	dma_p->orig_kaddrp = kaddrp;
3520 	dma_p->orig_vatopa = (uint64_t)va_to_pa(kaddrp);
3521 #endif
3522 
3523 	NXGE_DEBUG_MSG((nxgep, DMA_CTL, "<== nxge_dma_mem_alloc: "
3524 	    "dma buffer allocated: dma_p $%p "
3525 	    "return dmac_ladress from cookie $%p cookie dmac_size %d "
3526 	    "dma_p->ioaddr_p $%p "
3527 	    "dma_p->orig_ioaddr_p $%p "
3528 	    "orig_vatopa $%p "
3529 	    "alength %d (0x%x) "
3530 	    "kaddrp $%p "
3531 	    "length %d (0x%x)",
3532 	    dma_p,
3533 	    dma_p->dma_cookie.dmac_laddress, dma_p->dma_cookie.dmac_size,
3534 	    dma_p->ioaddr_pp,
3535 	    dma_p->orig_ioaddr_pp,
3536 	    dma_p->orig_vatopa,
3537 	    dma_p->alength, dma_p->alength,
3538 	    kaddrp,
3539 	    length, length));
3540 
3541 	return (NXGE_OK);
3542 }
3543 
3544 static void
3545 nxge_dma_mem_free(p_nxge_dma_common_t dma_p)
3546 {
3547 	if (dma_p->dma_handle != NULL) {
3548 		if (dma_p->ncookies) {
3549 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3550 			dma_p->ncookies = 0;
3551 		}
3552 		ddi_dma_free_handle(&dma_p->dma_handle);
3553 		dma_p->dma_handle = NULL;
3554 	}
3555 
3556 	if (dma_p->acc_handle != NULL) {
3557 		ddi_dma_mem_free(&dma_p->acc_handle);
3558 		dma_p->acc_handle = NULL;
3559 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3560 	}
3561 
3562 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3563 	if (dma_p->contig_alloc_type &&
3564 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3565 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_mem_free: "
3566 		    "kaddrp $%p (orig_kaddrp $%p)"
3567 		    "mem type %d ",
3568 		    "orig_alength %d "
3569 		    "alength 0x%x (%d)",
3570 		    dma_p->kaddrp,
3571 		    dma_p->orig_kaddrp,
3572 		    dma_p->contig_alloc_type,
3573 		    dma_p->orig_alength,
3574 		    dma_p->alength, dma_p->alength));
3575 
3576 		contig_mem_free(dma_p->orig_kaddrp, dma_p->orig_alength);
3577 		dma_p->orig_alength = NULL;
3578 		dma_p->orig_kaddrp = NULL;
3579 		dma_p->contig_alloc_type = B_FALSE;
3580 	}
3581 #endif
3582 	dma_p->kaddrp = NULL;
3583 	dma_p->alength = NULL;
3584 }
3585 
3586 static void
3587 nxge_dma_free_rx_data_buf(p_nxge_dma_common_t dma_p)
3588 {
3589 	uint64_t kaddr;
3590 	uint32_t buf_size;
3591 
3592 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "==> nxge_dma_free_rx_data_buf"));
3593 
3594 	if (dma_p->dma_handle != NULL) {
3595 		if (dma_p->ncookies) {
3596 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
3597 			dma_p->ncookies = 0;
3598 		}
3599 		ddi_dma_free_handle(&dma_p->dma_handle);
3600 		dma_p->dma_handle = NULL;
3601 	}
3602 
3603 	if (dma_p->acc_handle != NULL) {
3604 		ddi_dma_mem_free(&dma_p->acc_handle);
3605 		dma_p->acc_handle = NULL;
3606 		NPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
3607 	}
3608 
3609 	NXGE_DEBUG_MSG((NULL, DMA_CTL,
3610 	    "==> nxge_dma_free_rx_data_buf: dmap $%p buf_alloc_state %d",
3611 	    dma_p,
3612 	    dma_p->buf_alloc_state));
3613 
3614 	if (!(dma_p->buf_alloc_state & BUF_ALLOCATED_WAIT_FREE)) {
3615 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3616 		    "<== nxge_dma_free_rx_data_buf: "
3617 		    "outstanding data buffers"));
3618 		return;
3619 	}
3620 
3621 #if	defined(sun4v) && defined(NIU_LP_WORKAROUND)
3622 	if (dma_p->contig_alloc_type &&
3623 	    dma_p->orig_kaddrp && dma_p->orig_alength) {
3624 		NXGE_DEBUG_MSG((NULL, DMA_CTL, "nxge_dma_free_rx_data_buf: "
3625 		    "kaddrp $%p (orig_kaddrp $%p)"
3626 		    "mem type %d ",
3627 		    "orig_alength %d "
3628 		    "alength 0x%x (%d)",
3629 		    dma_p->kaddrp,
3630 		    dma_p->orig_kaddrp,
3631 		    dma_p->contig_alloc_type,
3632 		    dma_p->orig_alength,
3633 		    dma_p->alength, dma_p->alength));
3634 
3635 		kaddr = (uint64_t)dma_p->orig_kaddrp;
3636 		buf_size = dma_p->orig_alength;
3637 		nxge_free_buf(CONTIG_MEM_ALLOC, kaddr, buf_size);
3638 		dma_p->orig_alength = NULL;
3639 		dma_p->orig_kaddrp = NULL;
3640 		dma_p->contig_alloc_type = B_FALSE;
3641 		dma_p->kaddrp = NULL;
3642 		dma_p->alength = NULL;
3643 		return;
3644 	}
3645 #endif
3646 
3647 	if (dma_p->kmem_alloc_type) {
3648 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3649 		    "nxge_dma_free_rx_data_buf: free kmem "
3650 		    "kaddrp $%p (orig_kaddrp $%p)"
3651 		    "alloc type %d "
3652 		    "orig_alength %d "
3653 		    "alength 0x%x (%d)",
3654 		    dma_p->kaddrp,
3655 		    dma_p->orig_kaddrp,
3656 		    dma_p->kmem_alloc_type,
3657 		    dma_p->orig_alength,
3658 		    dma_p->alength, dma_p->alength));
3659 #if defined(__i386)
3660 		kaddr = (uint64_t)(uint32_t)dma_p->kaddrp;
3661 #else
3662 		kaddr = (uint64_t)dma_p->kaddrp;
3663 #endif
3664 		buf_size = dma_p->orig_alength;
3665 		NXGE_DEBUG_MSG((NULL, DMA_CTL,
3666 		    "nxge_dma_free_rx_data_buf: free dmap $%p "
3667 		    "kaddr $%p buf_size %d",
3668 		    dma_p,
3669 		    kaddr, buf_size));
3670 		nxge_free_buf(KMEM_ALLOC, kaddr, buf_size);
3671 		dma_p->alength = 0;
3672 		dma_p->orig_alength = 0;
3673 		dma_p->kaddrp = NULL;
3674 		dma_p->kmem_alloc_type = B_FALSE;
3675 	}
3676 
3677 	NXGE_DEBUG_MSG((NULL, DMA_CTL, "<== nxge_dma_free_rx_data_buf"));
3678 }
3679 
3680 /*
3681  *	nxge_m_start() -- start transmitting and receiving.
3682  *
3683  *	This function is called by the MAC layer when the first
3684  *	stream is open to prepare the hardware ready for sending
3685  *	and transmitting packets.
3686  */
3687 static int
3688 nxge_m_start(void *arg)
3689 {
3690 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3691 
3692 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_start"));
3693 
3694 	if (nxge_peu_reset_enable && !nxgep->nxge_link_poll_timerid) {
3695 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_START);
3696 	}
3697 
3698 	MUTEX_ENTER(nxgep->genlock);
3699 	if (nxge_init(nxgep) != NXGE_OK) {
3700 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3701 		    "<== nxge_m_start: initialization failed"));
3702 		MUTEX_EXIT(nxgep->genlock);
3703 		return (EIO);
3704 	}
3705 
3706 	if (nxgep->nxge_mac_state == NXGE_MAC_STARTED)
3707 		goto nxge_m_start_exit;
3708 	/*
3709 	 * Start timer to check the system error and tx hangs
3710 	 */
3711 	if (!isLDOMguest(nxgep))
3712 		nxgep->nxge_timerid = nxge_start_timer(nxgep,
3713 		    nxge_check_hw_state, NXGE_CHECK_TIMER);
3714 #if	defined(sun4v)
3715 	else
3716 		nxge_hio_start_timer(nxgep);
3717 #endif
3718 
3719 	nxgep->link_notify = B_TRUE;
3720 
3721 	nxgep->nxge_mac_state = NXGE_MAC_STARTED;
3722 
3723 nxge_m_start_exit:
3724 	MUTEX_EXIT(nxgep->genlock);
3725 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_start"));
3726 	return (0);
3727 }
3728 
3729 
3730 static boolean_t
3731 nxge_check_groups_stopped(p_nxge_t nxgep)
3732 {
3733 	int	i;
3734 
3735 	for (i = 0; i < NXGE_MAX_RDC_GROUPS; i++) {
3736 		if (nxgep->rx_hio_groups[i].started)
3737 			return (B_FALSE);
3738 	}
3739 
3740 	return (B_TRUE);
3741 }
3742 
3743 /*
3744  *	nxge_m_stop(): stop transmitting and receiving.
3745  */
3746 static void
3747 nxge_m_stop(void *arg)
3748 {
3749 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3750 	boolean_t	groups_stopped;
3751 
3752 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_stop"));
3753 
3754 	groups_stopped = nxge_check_groups_stopped(nxgep);
3755 #ifdef later
3756 	ASSERT(groups_stopped == B_FALSE);
3757 #endif
3758 
3759 	if (!groups_stopped) {
3760 		cmn_err(CE_WARN, "nxge(%d): groups are not stopped!\n",
3761 		    nxgep->instance);
3762 		return;
3763 	}
3764 
3765 	MUTEX_ENTER(nxgep->genlock);
3766 	nxgep->nxge_mac_state = NXGE_MAC_STOPPING;
3767 
3768 	if (nxgep->nxge_timerid) {
3769 		nxge_stop_timer(nxgep, nxgep->nxge_timerid);
3770 		nxgep->nxge_timerid = 0;
3771 	}
3772 
3773 	nxge_uninit(nxgep);
3774 
3775 	nxgep->nxge_mac_state = NXGE_MAC_STOPPED;
3776 
3777 	MUTEX_EXIT(nxgep->genlock);
3778 
3779 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_stop"));
3780 }
3781 
3782 static int
3783 nxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
3784 {
3785 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3786 	struct 		ether_addr addrp;
3787 
3788 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3789 	    "==> nxge_m_multicst: add %d", add));
3790 
3791 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
3792 	if (add) {
3793 		if (nxge_add_mcast_addr(nxgep, &addrp)) {
3794 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3795 			    "<== nxge_m_multicst: add multicast failed"));
3796 			return (EINVAL);
3797 		}
3798 	} else {
3799 		if (nxge_del_mcast_addr(nxgep, &addrp)) {
3800 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3801 			    "<== nxge_m_multicst: del multicast failed"));
3802 			return (EINVAL);
3803 		}
3804 	}
3805 
3806 	NXGE_DEBUG_MSG((nxgep, MAC_CTL, "<== nxge_m_multicst"));
3807 
3808 	return (0);
3809 }
3810 
3811 static int
3812 nxge_m_promisc(void *arg, boolean_t on)
3813 {
3814 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3815 
3816 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3817 	    "==> nxge_m_promisc: on %d", on));
3818 
3819 	if (nxge_set_promisc(nxgep, on)) {
3820 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3821 		    "<== nxge_m_promisc: set promisc failed"));
3822 		return (EINVAL);
3823 	}
3824 
3825 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
3826 	    "<== nxge_m_promisc: on %d", on));
3827 
3828 	return (0);
3829 }
3830 
3831 static void
3832 nxge_m_ioctl(void *arg,  queue_t *wq, mblk_t *mp)
3833 {
3834 	p_nxge_t 	nxgep = (p_nxge_t)arg;
3835 	struct 		iocblk *iocp;
3836 	boolean_t 	need_privilege;
3837 	int 		err;
3838 	int 		cmd;
3839 
3840 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl"));
3841 
3842 	iocp = (struct iocblk *)mp->b_rptr;
3843 	iocp->ioc_error = 0;
3844 	need_privilege = B_TRUE;
3845 	cmd = iocp->ioc_cmd;
3846 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_ioctl: cmd 0x%08x", cmd));
3847 	switch (cmd) {
3848 	default:
3849 		miocnak(wq, mp, 0, EINVAL);
3850 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl: invalid"));
3851 		return;
3852 
3853 	case LB_GET_INFO_SIZE:
3854 	case LB_GET_INFO:
3855 	case LB_GET_MODE:
3856 		need_privilege = B_FALSE;
3857 		break;
3858 	case LB_SET_MODE:
3859 		break;
3860 
3861 
3862 	case NXGE_GET_MII:
3863 	case NXGE_PUT_MII:
3864 	case NXGE_GET64:
3865 	case NXGE_PUT64:
3866 	case NXGE_GET_TX_RING_SZ:
3867 	case NXGE_GET_TX_DESC:
3868 	case NXGE_TX_SIDE_RESET:
3869 	case NXGE_RX_SIDE_RESET:
3870 	case NXGE_GLOBAL_RESET:
3871 	case NXGE_RESET_MAC:
3872 	case NXGE_TX_REGS_DUMP:
3873 	case NXGE_RX_REGS_DUMP:
3874 	case NXGE_INT_REGS_DUMP:
3875 	case NXGE_VIR_INT_REGS_DUMP:
3876 	case NXGE_PUT_TCAM:
3877 	case NXGE_GET_TCAM:
3878 	case NXGE_RTRACE:
3879 	case NXGE_RDUMP:
3880 
3881 		need_privilege = B_FALSE;
3882 		break;
3883 	case NXGE_INJECT_ERR:
3884 		cmn_err(CE_NOTE, "!nxge_m_ioctl: Inject error\n");
3885 		nxge_err_inject(nxgep, wq, mp);
3886 		break;
3887 	}
3888 
3889 	if (need_privilege) {
3890 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
3891 		if (err != 0) {
3892 			miocnak(wq, mp, 0, err);
3893 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
3894 			    "<== nxge_m_ioctl: no priv"));
3895 			return;
3896 		}
3897 	}
3898 
3899 	switch (cmd) {
3900 
3901 	case LB_GET_MODE:
3902 	case LB_SET_MODE:
3903 	case LB_GET_INFO_SIZE:
3904 	case LB_GET_INFO:
3905 		nxge_loopback_ioctl(nxgep, wq, mp, iocp);
3906 		break;
3907 
3908 	case NXGE_GET_MII:
3909 	case NXGE_PUT_MII:
3910 	case NXGE_PUT_TCAM:
3911 	case NXGE_GET_TCAM:
3912 	case NXGE_GET64:
3913 	case NXGE_PUT64:
3914 	case NXGE_GET_TX_RING_SZ:
3915 	case NXGE_GET_TX_DESC:
3916 	case NXGE_TX_SIDE_RESET:
3917 	case NXGE_RX_SIDE_RESET:
3918 	case NXGE_GLOBAL_RESET:
3919 	case NXGE_RESET_MAC:
3920 	case NXGE_TX_REGS_DUMP:
3921 	case NXGE_RX_REGS_DUMP:
3922 	case NXGE_INT_REGS_DUMP:
3923 	case NXGE_VIR_INT_REGS_DUMP:
3924 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
3925 		    "==> nxge_m_ioctl: cmd 0x%x", cmd));
3926 		nxge_hw_ioctl(nxgep, wq, mp, iocp);
3927 		break;
3928 	}
3929 
3930 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_ioctl"));
3931 }
3932 
3933 extern void nxge_rx_hw_blank(void *arg, time_t ticks, uint_t count);
3934 
3935 void
3936 nxge_mmac_kstat_update(p_nxge_t nxgep, int slot, boolean_t factory)
3937 {
3938 	p_nxge_mmac_stats_t mmac_stats;
3939 	int i;
3940 	nxge_mmac_t *mmac_info;
3941 
3942 	mmac_info = &nxgep->nxge_mmac_info;
3943 
3944 	mmac_stats = &nxgep->statsp->mmac_stats;
3945 	mmac_stats->mmac_max_cnt = mmac_info->num_mmac;
3946 	mmac_stats->mmac_avail_cnt = mmac_info->naddrfree;
3947 
3948 	for (i = 0; i < ETHERADDRL; i++) {
3949 		if (factory) {
3950 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3951 			    = mmac_info->factory_mac_pool[slot][
3952 			    (ETHERADDRL-1) - i];
3953 		} else {
3954 			mmac_stats->mmac_avail_pool[slot-1].ether_addr_octet[i]
3955 			    = mmac_info->mac_pool[slot].addr[
3956 			    (ETHERADDRL - 1) - i];
3957 		}
3958 	}
3959 }
3960 
3961 /*
3962  * nxge_altmac_set() -- Set an alternate MAC address
3963  */
3964 static int
3965 nxge_altmac_set(p_nxge_t nxgep, uint8_t *maddr, int slot,
3966 	int rdctbl, boolean_t usetbl)
3967 {
3968 	uint8_t addrn;
3969 	uint8_t portn;
3970 	npi_mac_addr_t altmac;
3971 	hostinfo_t mac_rdc;
3972 	p_nxge_class_pt_cfg_t clscfgp;
3973 
3974 
3975 	altmac.w2 = ((uint16_t)maddr[0] << 8) | ((uint16_t)maddr[1] & 0x0ff);
3976 	altmac.w1 = ((uint16_t)maddr[2] << 8) | ((uint16_t)maddr[3] & 0x0ff);
3977 	altmac.w0 = ((uint16_t)maddr[4] << 8) | ((uint16_t)maddr[5] & 0x0ff);
3978 
3979 	portn = nxgep->mac.portnum;
3980 	addrn = (uint8_t)slot - 1;
3981 
3982 	if (npi_mac_altaddr_entry(nxgep->npi_handle, OP_SET,
3983 	    nxgep->function_num, addrn, &altmac) != NPI_SUCCESS)
3984 		return (EIO);
3985 
3986 	/*
3987 	 * Set the rdc table number for the host info entry
3988 	 * for this mac address slot.
3989 	 */
3990 	clscfgp = (p_nxge_class_pt_cfg_t)&nxgep->class_config;
3991 	mac_rdc.value = 0;
3992 	if (usetbl)
3993 		mac_rdc.bits.w0.rdc_tbl_num = rdctbl;
3994 	else
3995 		mac_rdc.bits.w0.rdc_tbl_num =
3996 		    clscfgp->mac_host_info[addrn].rdctbl;
3997 	mac_rdc.bits.w0.mac_pref = clscfgp->mac_host_info[addrn].mpr_npr;
3998 
3999 	if (npi_mac_hostinfo_entry(nxgep->npi_handle, OP_SET,
4000 	    nxgep->function_num, addrn, &mac_rdc) != NPI_SUCCESS) {
4001 		return (EIO);
4002 	}
4003 
4004 	/*
4005 	 * Enable comparison with the alternate MAC address.
4006 	 * While the first alternate addr is enabled by bit 1 of register
4007 	 * BMAC_ALTAD_CMPEN, it is enabled by bit 0 of register
4008 	 * XMAC_ADDR_CMPEN, so slot needs to be converted to addrn
4009 	 * accordingly before calling npi_mac_altaddr_entry.
4010 	 */
4011 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4012 		addrn = (uint8_t)slot - 1;
4013 	else
4014 		addrn = (uint8_t)slot;
4015 
4016 	if (npi_mac_altaddr_enable(nxgep->npi_handle,
4017 	    nxgep->function_num, addrn) != NPI_SUCCESS) {
4018 		return (EIO);
4019 	}
4020 
4021 	return (0);
4022 }
4023 
4024 /*
4025  * nxeg_m_mmac_add_g() - find an unused address slot, set the address
4026  * value to the one specified, enable the port to start filtering on
4027  * the new MAC address.  Returns 0 on success.
4028  */
4029 int
4030 nxge_m_mmac_add_g(void *arg, const uint8_t *maddr, int rdctbl,
4031 	boolean_t usetbl)
4032 {
4033 	p_nxge_t nxgep = arg;
4034 	int slot;
4035 	nxge_mmac_t *mmac_info;
4036 	int err;
4037 	nxge_status_t status;
4038 
4039 	mutex_enter(nxgep->genlock);
4040 
4041 	/*
4042 	 * Make sure that nxge is initialized, if _start() has
4043 	 * not been called.
4044 	 */
4045 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4046 		status = nxge_init(nxgep);
4047 		if (status != NXGE_OK) {
4048 			mutex_exit(nxgep->genlock);
4049 			return (ENXIO);
4050 		}
4051 	}
4052 
4053 	mmac_info = &nxgep->nxge_mmac_info;
4054 	if (mmac_info->naddrfree == 0) {
4055 		mutex_exit(nxgep->genlock);
4056 		return (ENOSPC);
4057 	}
4058 
4059 	/*
4060 	 * 	Search for the first available slot. Because naddrfree
4061 	 * is not zero, we are guaranteed to find one.
4062 	 *	Each of the first two ports of Neptune has 16 alternate
4063 	 * MAC slots but only the first 7 (of 15) slots have assigned factory
4064 	 * MAC addresses. We first search among the slots without bundled
4065 	 * factory MACs. If we fail to find one in that range, then we
4066 	 * search the slots with bundled factory MACs.  A factory MAC
4067 	 * will be wasted while the slot is used with a user MAC address.
4068 	 * But the slot could be used by factory MAC again after calling
4069 	 * nxge_m_mmac_remove and nxge_m_mmac_reserve.
4070 	 */
4071 	for (slot = 0; slot <= mmac_info->num_mmac; slot++) {
4072 		if (!(mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED))
4073 			break;
4074 	}
4075 
4076 	ASSERT(slot <= mmac_info->num_mmac);
4077 
4078 	if ((err = nxge_altmac_set(nxgep, (uint8_t *)maddr, slot, rdctbl,
4079 	    usetbl)) != 0) {
4080 		mutex_exit(nxgep->genlock);
4081 		return (err);
4082 	}
4083 
4084 	bcopy(maddr, mmac_info->mac_pool[slot].addr, ETHERADDRL);
4085 	mmac_info->mac_pool[slot].flags |= MMAC_SLOT_USED;
4086 	mmac_info->mac_pool[slot].flags &= ~MMAC_VENDOR_ADDR;
4087 	mmac_info->naddrfree--;
4088 	nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4089 
4090 	mutex_exit(nxgep->genlock);
4091 	return (0);
4092 }
4093 
4094 /*
4095  * Remove the specified mac address and update the HW not to filter
4096  * the mac address anymore.
4097  */
4098 int
4099 nxge_m_mmac_remove(void *arg, int slot)
4100 {
4101 	p_nxge_t nxgep = arg;
4102 	nxge_mmac_t *mmac_info;
4103 	uint8_t addrn;
4104 	uint8_t portn;
4105 	int err = 0;
4106 	nxge_status_t status;
4107 
4108 	mutex_enter(nxgep->genlock);
4109 
4110 	/*
4111 	 * Make sure that nxge is initialized, if _start() has
4112 	 * not been called.
4113 	 */
4114 	if (!(nxgep->drv_state & STATE_HW_INITIALIZED)) {
4115 		status = nxge_init(nxgep);
4116 		if (status != NXGE_OK) {
4117 			mutex_exit(nxgep->genlock);
4118 			return (ENXIO);
4119 		}
4120 	}
4121 
4122 	mmac_info = &nxgep->nxge_mmac_info;
4123 	if (slot < 1 || slot > mmac_info->num_mmac) {
4124 		mutex_exit(nxgep->genlock);
4125 		return (EINVAL);
4126 	}
4127 
4128 	portn = nxgep->mac.portnum;
4129 	if (portn == XMAC_PORT_0 || portn == XMAC_PORT_1)
4130 		addrn = (uint8_t)slot - 1;
4131 	else
4132 		addrn = (uint8_t)slot;
4133 
4134 	if (mmac_info->mac_pool[slot].flags & MMAC_SLOT_USED) {
4135 		if (npi_mac_altaddr_disable(nxgep->npi_handle, portn, addrn)
4136 		    == NPI_SUCCESS) {
4137 			mmac_info->naddrfree++;
4138 			mmac_info->mac_pool[slot].flags &= ~MMAC_SLOT_USED;
4139 			/*
4140 			 * Regardless if the MAC we just stopped filtering
4141 			 * is a user addr or a facory addr, we must set
4142 			 * the MMAC_VENDOR_ADDR flag if this slot has an
4143 			 * associated factory MAC to indicate that a factory
4144 			 * MAC is available.
4145 			 */
4146 			if (slot <= mmac_info->num_factory_mmac) {
4147 				mmac_info->mac_pool[slot].flags
4148 				    |= MMAC_VENDOR_ADDR;
4149 			}
4150 			/*
4151 			 * Clear mac_pool[slot].addr so that kstat shows 0
4152 			 * alternate MAC address if the slot is not used.
4153 			 * (But nxge_m_mmac_get returns the factory MAC even
4154 			 * when the slot is not used!)
4155 			 */
4156 			bzero(mmac_info->mac_pool[slot].addr, ETHERADDRL);
4157 			nxge_mmac_kstat_update(nxgep, slot, B_FALSE);
4158 		} else {
4159 			err = EIO;
4160 		}
4161 	} else {
4162 		err = EINVAL;
4163 	}
4164 
4165 	mutex_exit(nxgep->genlock);
4166 	return (err);
4167 }
4168 
4169 /*
4170  * The callback to query all the factory addresses. naddr must be the same as
4171  * the number of factory addresses (returned by MAC_CAPAB_MULTIFACTADDR), and
4172  * mcm_addr is the space allocated for keep all the addresses, whose size is
4173  * naddr * MAXMACADDRLEN.
4174  */
4175 static void
4176 nxge_m_getfactaddr(void *arg, uint_t naddr, uint8_t *addr)
4177 {
4178 	nxge_t		*nxgep = arg;
4179 	nxge_mmac_t	*mmac_info;
4180 	int		i;
4181 
4182 	mutex_enter(nxgep->genlock);
4183 
4184 	mmac_info = &nxgep->nxge_mmac_info;
4185 	ASSERT(naddr == mmac_info->num_factory_mmac);
4186 
4187 	for (i = 0; i < naddr; i++) {
4188 		bcopy(mmac_info->factory_mac_pool[i + 1],
4189 		    addr + i * MAXMACADDRLEN, ETHERADDRL);
4190 	}
4191 
4192 	mutex_exit(nxgep->genlock);
4193 }
4194 
4195 
4196 static boolean_t
4197 nxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
4198 {
4199 	nxge_t *nxgep = arg;
4200 	uint32_t *txflags = cap_data;
4201 
4202 	switch (cap) {
4203 	case MAC_CAPAB_HCKSUM:
4204 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4205 		    "==> nxge_m_getcapab: checksum %d", nxge_cksum_offload));
4206 		if (nxge_cksum_offload <= 1) {
4207 			*txflags = HCKSUM_INET_PARTIAL;
4208 		}
4209 		break;
4210 
4211 	case MAC_CAPAB_MULTIFACTADDR: {
4212 		mac_capab_multifactaddr_t	*mfacp = cap_data;
4213 
4214 		mutex_enter(nxgep->genlock);
4215 		mfacp->mcm_naddr = nxgep->nxge_mmac_info.num_factory_mmac;
4216 		mfacp->mcm_getaddr = nxge_m_getfactaddr;
4217 		mutex_exit(nxgep->genlock);
4218 		break;
4219 	}
4220 
4221 	case MAC_CAPAB_LSO: {
4222 		mac_capab_lso_t *cap_lso = cap_data;
4223 
4224 		if (nxgep->soft_lso_enable) {
4225 			if (nxge_cksum_offload <= 1) {
4226 				cap_lso->lso_flags = LSO_TX_BASIC_TCP_IPV4;
4227 				if (nxge_lso_max > NXGE_LSO_MAXLEN) {
4228 					nxge_lso_max = NXGE_LSO_MAXLEN;
4229 				}
4230 				cap_lso->lso_basic_tcp_ipv4.lso_max =
4231 				    nxge_lso_max;
4232 			}
4233 			break;
4234 		} else {
4235 			return (B_FALSE);
4236 		}
4237 	}
4238 
4239 	case MAC_CAPAB_RINGS: {
4240 		mac_capab_rings_t	*cap_rings = cap_data;
4241 		p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
4242 
4243 		mutex_enter(nxgep->genlock);
4244 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
4245 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4246 			cap_rings->mr_rnum = p_cfgp->max_rdcs;
4247 			cap_rings->mr_rget = nxge_fill_ring;
4248 			cap_rings->mr_gnum = p_cfgp->max_rdc_grpids;
4249 			cap_rings->mr_gget = nxge_hio_group_get;
4250 			cap_rings->mr_gaddring = nxge_group_add_ring;
4251 			cap_rings->mr_gremring = nxge_group_rem_ring;
4252 
4253 			NXGE_DEBUG_MSG((nxgep, RX_CTL,
4254 			    "==> nxge_m_getcapab: rx nrings[%d] ngroups[%d]",
4255 			    p_cfgp->max_rdcs, p_cfgp->max_rdc_grpids));
4256 		} else {
4257 			cap_rings->mr_group_type = MAC_GROUP_TYPE_DYNAMIC;
4258 			cap_rings->mr_rnum = p_cfgp->tdc.count;
4259 			cap_rings->mr_rget = nxge_fill_ring;
4260 			if (isLDOMservice(nxgep)) {
4261 				/* share capable */
4262 				/* Do not report the default ring: hence -1 */
4263 				cap_rings->mr_gnum =
4264 				    NXGE_MAX_TDC_GROUPS / nxgep->nports - 1;
4265 			} else {
4266 				cap_rings->mr_gnum = 0;
4267 			}
4268 
4269 			cap_rings->mr_gget = nxge_hio_group_get;
4270 			cap_rings->mr_gaddring = nxge_group_add_ring;
4271 			cap_rings->mr_gremring = nxge_group_rem_ring;
4272 
4273 			NXGE_DEBUG_MSG((nxgep, TX_CTL,
4274 			    "==> nxge_m_getcapab: tx rings # of rings %d",
4275 			    p_cfgp->tdc.count));
4276 		}
4277 		mutex_exit(nxgep->genlock);
4278 		break;
4279 	}
4280 
4281 #if defined(sun4v)
4282 	case MAC_CAPAB_SHARES: {
4283 		mac_capab_share_t *mshares = (mac_capab_share_t *)cap_data;
4284 
4285 		/*
4286 		 * Only the service domain driver responds to
4287 		 * this capability request.
4288 		 */
4289 		mutex_enter(nxgep->genlock);
4290 		if (isLDOMservice(nxgep)) {
4291 			mshares->ms_snum = 3;
4292 			mshares->ms_handle = (void *)nxgep;
4293 			mshares->ms_salloc = nxge_hio_share_alloc;
4294 			mshares->ms_sfree = nxge_hio_share_free;
4295 			mshares->ms_sadd = nxge_hio_share_add_group;
4296 			mshares->ms_sremove = nxge_hio_share_rem_group;
4297 			mshares->ms_squery = nxge_hio_share_query;
4298 			mshares->ms_sbind = nxge_hio_share_bind;
4299 			mshares->ms_sunbind = nxge_hio_share_unbind;
4300 			mutex_exit(nxgep->genlock);
4301 		} else {
4302 			mutex_exit(nxgep->genlock);
4303 			return (B_FALSE);
4304 		}
4305 		break;
4306 	}
4307 #endif
4308 	default:
4309 		return (B_FALSE);
4310 	}
4311 	return (B_TRUE);
4312 }
4313 
4314 static boolean_t
4315 nxge_param_locked(mac_prop_id_t pr_num)
4316 {
4317 	/*
4318 	 * All adv_* parameters are locked (read-only) while
4319 	 * the device is in any sort of loopback mode ...
4320 	 */
4321 	switch (pr_num) {
4322 		case MAC_PROP_ADV_1000FDX_CAP:
4323 		case MAC_PROP_EN_1000FDX_CAP:
4324 		case MAC_PROP_ADV_1000HDX_CAP:
4325 		case MAC_PROP_EN_1000HDX_CAP:
4326 		case MAC_PROP_ADV_100FDX_CAP:
4327 		case MAC_PROP_EN_100FDX_CAP:
4328 		case MAC_PROP_ADV_100HDX_CAP:
4329 		case MAC_PROP_EN_100HDX_CAP:
4330 		case MAC_PROP_ADV_10FDX_CAP:
4331 		case MAC_PROP_EN_10FDX_CAP:
4332 		case MAC_PROP_ADV_10HDX_CAP:
4333 		case MAC_PROP_EN_10HDX_CAP:
4334 		case MAC_PROP_AUTONEG:
4335 		case MAC_PROP_FLOWCTRL:
4336 			return (B_TRUE);
4337 	}
4338 	return (B_FALSE);
4339 }
4340 
4341 /*
4342  * callback functions for set/get of properties
4343  */
4344 static int
4345 nxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4346     uint_t pr_valsize, const void *pr_val)
4347 {
4348 	nxge_t		*nxgep = barg;
4349 	p_nxge_param_t	param_arr;
4350 	p_nxge_stats_t	statsp;
4351 	int		err = 0;
4352 	uint8_t		val;
4353 	uint32_t	cur_mtu, new_mtu, old_framesize;
4354 	link_flowctrl_t	fl;
4355 
4356 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "==> nxge_m_setprop"));
4357 	param_arr = nxgep->param_arr;
4358 	statsp = nxgep->statsp;
4359 	mutex_enter(nxgep->genlock);
4360 	if (statsp->port_stats.lb_mode != nxge_lb_normal &&
4361 	    nxge_param_locked(pr_num)) {
4362 		/*
4363 		 * All adv_* parameters are locked (read-only)
4364 		 * while the device is in any sort of loopback mode.
4365 		 */
4366 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4367 		    "==> nxge_m_setprop: loopback mode: read only"));
4368 		mutex_exit(nxgep->genlock);
4369 		return (EBUSY);
4370 	}
4371 
4372 	val = *(uint8_t *)pr_val;
4373 	switch (pr_num) {
4374 		case MAC_PROP_EN_1000FDX_CAP:
4375 			nxgep->param_en_1000fdx = val;
4376 			param_arr[param_anar_1000fdx].value = val;
4377 
4378 			goto reprogram;
4379 
4380 		case MAC_PROP_EN_100FDX_CAP:
4381 			nxgep->param_en_100fdx = val;
4382 			param_arr[param_anar_100fdx].value = val;
4383 
4384 			goto reprogram;
4385 
4386 		case MAC_PROP_EN_10FDX_CAP:
4387 			nxgep->param_en_10fdx = val;
4388 			param_arr[param_anar_10fdx].value = val;
4389 
4390 			goto reprogram;
4391 
4392 		case MAC_PROP_EN_1000HDX_CAP:
4393 		case MAC_PROP_EN_100HDX_CAP:
4394 		case MAC_PROP_EN_10HDX_CAP:
4395 		case MAC_PROP_ADV_1000FDX_CAP:
4396 		case MAC_PROP_ADV_1000HDX_CAP:
4397 		case MAC_PROP_ADV_100FDX_CAP:
4398 		case MAC_PROP_ADV_100HDX_CAP:
4399 		case MAC_PROP_ADV_10FDX_CAP:
4400 		case MAC_PROP_ADV_10HDX_CAP:
4401 		case MAC_PROP_STATUS:
4402 		case MAC_PROP_SPEED:
4403 		case MAC_PROP_DUPLEX:
4404 			err = EINVAL; /* cannot set read-only properties */
4405 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4406 			    "==> nxge_m_setprop:  read only property %d",
4407 			    pr_num));
4408 			break;
4409 
4410 		case MAC_PROP_AUTONEG:
4411 			param_arr[param_autoneg].value = val;
4412 
4413 			goto reprogram;
4414 
4415 		case MAC_PROP_MTU:
4416 			cur_mtu = nxgep->mac.default_mtu;
4417 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
4418 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4419 			    "==> nxge_m_setprop: set MTU: %d is_jumbo %d",
4420 			    new_mtu, nxgep->mac.is_jumbo));
4421 
4422 			if (new_mtu == cur_mtu) {
4423 				err = 0;
4424 				break;
4425 			}
4426 			if (nxgep->nxge_mac_state == NXGE_MAC_STARTED) {
4427 				err = EBUSY;
4428 				break;
4429 			}
4430 			if (new_mtu < NXGE_DEFAULT_MTU ||
4431 			    new_mtu > NXGE_MAXIMUM_MTU) {
4432 				err = EINVAL;
4433 				break;
4434 			}
4435 
4436 			if ((new_mtu > NXGE_DEFAULT_MTU) &&
4437 			    !nxgep->mac.is_jumbo) {
4438 				err = EINVAL;
4439 				break;
4440 			}
4441 
4442 			old_framesize = (uint32_t)nxgep->mac.maxframesize;
4443 			nxgep->mac.maxframesize = (uint16_t)
4444 			    (new_mtu + NXGE_EHEADER_VLAN_CRC);
4445 			if (nxge_mac_set_framesize(nxgep)) {
4446 				nxgep->mac.maxframesize =
4447 				    (uint16_t)old_framesize;
4448 				err = EINVAL;
4449 				break;
4450 			}
4451 
4452 			err = mac_maxsdu_update(nxgep->mach, new_mtu);
4453 			if (err) {
4454 				nxgep->mac.maxframesize =
4455 				    (uint16_t)old_framesize;
4456 				err = EINVAL;
4457 				break;
4458 			}
4459 
4460 			nxgep->mac.default_mtu = new_mtu;
4461 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4462 			    "==> nxge_m_setprop: set MTU: %d maxframe %d",
4463 			    new_mtu, nxgep->mac.maxframesize));
4464 			break;
4465 
4466 		case MAC_PROP_FLOWCTRL:
4467 			bcopy(pr_val, &fl, sizeof (fl));
4468 			switch (fl) {
4469 			default:
4470 				err = EINVAL;
4471 				break;
4472 
4473 			case LINK_FLOWCTRL_NONE:
4474 				param_arr[param_anar_pause].value = 0;
4475 				break;
4476 
4477 			case LINK_FLOWCTRL_RX:
4478 				param_arr[param_anar_pause].value = 1;
4479 				break;
4480 
4481 			case LINK_FLOWCTRL_TX:
4482 			case LINK_FLOWCTRL_BI:
4483 				err = EINVAL;
4484 				break;
4485 			}
4486 
4487 reprogram:
4488 			if (err == 0) {
4489 				if (!nxge_param_link_update(nxgep)) {
4490 					err = EINVAL;
4491 				}
4492 			}
4493 			break;
4494 		case MAC_PROP_PRIVATE:
4495 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4496 			    "==> nxge_m_setprop: private property"));
4497 			err = nxge_set_priv_prop(nxgep, pr_name, pr_valsize,
4498 			    pr_val);
4499 			break;
4500 
4501 		default:
4502 			err = ENOTSUP;
4503 			break;
4504 	}
4505 
4506 	mutex_exit(nxgep->genlock);
4507 
4508 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4509 	    "<== nxge_m_setprop (return %d)", err));
4510 	return (err);
4511 }
4512 
4513 static int
4514 nxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
4515     uint_t pr_flags, uint_t pr_valsize, void *pr_val, uint_t *perm)
4516 {
4517 	nxge_t 		*nxgep = barg;
4518 	p_nxge_param_t	param_arr = nxgep->param_arr;
4519 	p_nxge_stats_t	statsp = nxgep->statsp;
4520 	int		err = 0;
4521 	link_flowctrl_t	fl;
4522 	uint64_t	tmp = 0;
4523 	link_state_t	ls;
4524 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4525 
4526 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4527 	    "==> nxge_m_getprop: pr_num %d", pr_num));
4528 
4529 	if (pr_valsize == 0)
4530 		return (EINVAL);
4531 
4532 	*perm = MAC_PROP_PERM_RW;
4533 
4534 	if ((is_default) && (pr_num != MAC_PROP_PRIVATE)) {
4535 		err = nxge_get_def_val(nxgep, pr_num, pr_valsize, pr_val);
4536 		return (err);
4537 	}
4538 
4539 	bzero(pr_val, pr_valsize);
4540 	switch (pr_num) {
4541 		case MAC_PROP_DUPLEX:
4542 			*perm = MAC_PROP_PERM_READ;
4543 			*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
4544 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4545 			    "==> nxge_m_getprop: duplex mode %d",
4546 			    *(uint8_t *)pr_val));
4547 			break;
4548 
4549 		case MAC_PROP_SPEED:
4550 			if (pr_valsize < sizeof (uint64_t))
4551 				return (EINVAL);
4552 			*perm = MAC_PROP_PERM_READ;
4553 			tmp = statsp->mac_stats.link_speed * 1000000ull;
4554 			bcopy(&tmp, pr_val, sizeof (tmp));
4555 			break;
4556 
4557 		case MAC_PROP_STATUS:
4558 			if (pr_valsize < sizeof (link_state_t))
4559 				return (EINVAL);
4560 			*perm = MAC_PROP_PERM_READ;
4561 			if (!statsp->mac_stats.link_up)
4562 				ls = LINK_STATE_DOWN;
4563 			else
4564 				ls = LINK_STATE_UP;
4565 			bcopy(&ls, pr_val, sizeof (ls));
4566 			break;
4567 
4568 		case MAC_PROP_AUTONEG:
4569 			*(uint8_t *)pr_val =
4570 			    param_arr[param_autoneg].value;
4571 			break;
4572 
4573 		case MAC_PROP_FLOWCTRL:
4574 			if (pr_valsize < sizeof (link_flowctrl_t))
4575 				return (EINVAL);
4576 
4577 			fl = LINK_FLOWCTRL_NONE;
4578 			if (param_arr[param_anar_pause].value) {
4579 				fl = LINK_FLOWCTRL_RX;
4580 			}
4581 			bcopy(&fl, pr_val, sizeof (fl));
4582 			break;
4583 
4584 		case MAC_PROP_ADV_1000FDX_CAP:
4585 			*perm = MAC_PROP_PERM_READ;
4586 			*(uint8_t *)pr_val =
4587 			    param_arr[param_anar_1000fdx].value;
4588 			break;
4589 
4590 		case MAC_PROP_EN_1000FDX_CAP:
4591 			*(uint8_t *)pr_val = nxgep->param_en_1000fdx;
4592 			break;
4593 
4594 		case MAC_PROP_ADV_100FDX_CAP:
4595 			*perm = MAC_PROP_PERM_READ;
4596 			*(uint8_t *)pr_val =
4597 			    param_arr[param_anar_100fdx].value;
4598 			break;
4599 
4600 		case MAC_PROP_EN_100FDX_CAP:
4601 			*(uint8_t *)pr_val = nxgep->param_en_100fdx;
4602 			break;
4603 
4604 		case MAC_PROP_ADV_10FDX_CAP:
4605 			*perm = MAC_PROP_PERM_READ;
4606 			*(uint8_t *)pr_val =
4607 			    param_arr[param_anar_10fdx].value;
4608 			break;
4609 
4610 		case MAC_PROP_EN_10FDX_CAP:
4611 			*(uint8_t *)pr_val = nxgep->param_en_10fdx;
4612 			break;
4613 
4614 		case MAC_PROP_EN_1000HDX_CAP:
4615 		case MAC_PROP_EN_100HDX_CAP:
4616 		case MAC_PROP_EN_10HDX_CAP:
4617 		case MAC_PROP_ADV_1000HDX_CAP:
4618 		case MAC_PROP_ADV_100HDX_CAP:
4619 		case MAC_PROP_ADV_10HDX_CAP:
4620 			err = ENOTSUP;
4621 			break;
4622 
4623 		case MAC_PROP_PRIVATE:
4624 			err = nxge_get_priv_prop(nxgep, pr_name, pr_flags,
4625 			    pr_valsize, pr_val, perm);
4626 			break;
4627 		default:
4628 			err = EINVAL;
4629 			break;
4630 	}
4631 
4632 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL, "<== nxge_m_getprop"));
4633 
4634 	return (err);
4635 }
4636 
4637 /* ARGSUSED */
4638 static int
4639 nxge_set_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_valsize,
4640     const void *pr_val)
4641 {
4642 	p_nxge_param_t	param_arr = nxgep->param_arr;
4643 	int		err = 0;
4644 	long		result;
4645 
4646 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4647 	    "==> nxge_set_priv_prop: name %s", pr_name));
4648 
4649 	if (strcmp(pr_name, "_accept_jumbo") == 0) {
4650 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4651 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4652 		    "<== nxge_set_priv_prop: name %s "
4653 		    "pr_val %s result %d "
4654 		    "param %d is_jumbo %d",
4655 		    pr_name, pr_val, result,
4656 		    param_arr[param_accept_jumbo].value,
4657 		    nxgep->mac.is_jumbo));
4658 
4659 		if (result > 1 || result < 0) {
4660 			err = EINVAL;
4661 		} else {
4662 			if (nxgep->mac.is_jumbo ==
4663 			    (uint32_t)result) {
4664 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4665 				    "no change (%d %d)",
4666 				    nxgep->mac.is_jumbo,
4667 				    result));
4668 				return (0);
4669 			}
4670 		}
4671 
4672 		param_arr[param_accept_jumbo].value = result;
4673 		nxgep->mac.is_jumbo = B_FALSE;
4674 		if (result) {
4675 			nxgep->mac.is_jumbo = B_TRUE;
4676 		}
4677 
4678 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4679 		    "<== nxge_set_priv_prop: name %s (value %d) is_jumbo %d",
4680 		    pr_name, result, nxgep->mac.is_jumbo));
4681 
4682 		return (err);
4683 	}
4684 
4685 	/* Blanking */
4686 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
4687 		err = nxge_param_rx_intr_time(nxgep, NULL, NULL,
4688 		    (char *)pr_val,
4689 		    (caddr_t)&param_arr[param_rxdma_intr_time]);
4690 		if (err) {
4691 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4692 			    "<== nxge_set_priv_prop: "
4693 			    "unable to set (%s)", pr_name));
4694 			err = EINVAL;
4695 		} else {
4696 			err = 0;
4697 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4698 			    "<== nxge_set_priv_prop: "
4699 			    "set (%s)", pr_name));
4700 		}
4701 
4702 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4703 		    "<== nxge_set_priv_prop: name %s (value %d)",
4704 		    pr_name, result));
4705 
4706 		return (err);
4707 	}
4708 
4709 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
4710 		err = nxge_param_rx_intr_pkts(nxgep, NULL, NULL,
4711 		    (char *)pr_val,
4712 		    (caddr_t)&param_arr[param_rxdma_intr_pkts]);
4713 		if (err) {
4714 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4715 			    "<== nxge_set_priv_prop: "
4716 			    "unable to set (%s)", pr_name));
4717 			err = EINVAL;
4718 		} else {
4719 			err = 0;
4720 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4721 			    "<== nxge_set_priv_prop: "
4722 			    "set (%s)", pr_name));
4723 		}
4724 
4725 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4726 		    "<== nxge_set_priv_prop: name %s (value %d)",
4727 		    pr_name, result));
4728 
4729 		return (err);
4730 	}
4731 
4732 	/* Classification */
4733 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
4734 		if (pr_val == NULL) {
4735 			err = EINVAL;
4736 			return (err);
4737 		}
4738 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4739 
4740 		err = nxge_param_set_ip_opt(nxgep, NULL,
4741 		    NULL, (char *)pr_val,
4742 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
4743 
4744 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4745 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4746 		    pr_name, result));
4747 
4748 		return (err);
4749 	}
4750 
4751 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
4752 		if (pr_val == NULL) {
4753 			err = EINVAL;
4754 			return (err);
4755 		}
4756 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4757 
4758 		err = nxge_param_set_ip_opt(nxgep, NULL,
4759 		    NULL, (char *)pr_val,
4760 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
4761 
4762 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4763 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4764 		    pr_name, result));
4765 
4766 		return (err);
4767 	}
4768 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
4769 		if (pr_val == NULL) {
4770 			err = EINVAL;
4771 			return (err);
4772 		}
4773 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4774 
4775 		err = nxge_param_set_ip_opt(nxgep, NULL,
4776 		    NULL, (char *)pr_val,
4777 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
4778 
4779 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4780 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4781 		    pr_name, result));
4782 
4783 		return (err);
4784 	}
4785 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
4786 		if (pr_val == NULL) {
4787 			err = EINVAL;
4788 			return (err);
4789 		}
4790 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4791 
4792 		err = nxge_param_set_ip_opt(nxgep, NULL,
4793 		    NULL, (char *)pr_val,
4794 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
4795 
4796 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4797 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4798 		    pr_name, result));
4799 
4800 		return (err);
4801 	}
4802 
4803 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
4804 		if (pr_val == NULL) {
4805 			err = EINVAL;
4806 			return (err);
4807 		}
4808 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4809 
4810 		err = nxge_param_set_ip_opt(nxgep, NULL,
4811 		    NULL, (char *)pr_val,
4812 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
4813 
4814 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4815 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4816 		    pr_name, result));
4817 
4818 		return (err);
4819 	}
4820 
4821 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
4822 		if (pr_val == NULL) {
4823 			err = EINVAL;
4824 			return (err);
4825 		}
4826 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4827 
4828 		err = nxge_param_set_ip_opt(nxgep, NULL,
4829 		    NULL, (char *)pr_val,
4830 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
4831 
4832 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4833 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4834 		    pr_name, result));
4835 
4836 		return (err);
4837 	}
4838 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
4839 		if (pr_val == NULL) {
4840 			err = EINVAL;
4841 			return (err);
4842 		}
4843 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4844 
4845 		err = nxge_param_set_ip_opt(nxgep, NULL,
4846 		    NULL, (char *)pr_val,
4847 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
4848 
4849 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4850 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4851 		    pr_name, result));
4852 
4853 		return (err);
4854 	}
4855 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
4856 		if (pr_val == NULL) {
4857 			err = EINVAL;
4858 			return (err);
4859 		}
4860 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4861 
4862 		err = nxge_param_set_ip_opt(nxgep, NULL,
4863 		    NULL, (char *)pr_val,
4864 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
4865 
4866 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4867 		    "<== nxge_set_priv_prop: name %s (value 0x%x)",
4868 		    pr_name, result));
4869 
4870 		return (err);
4871 	}
4872 
4873 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
4874 		if (pr_val == NULL) {
4875 			NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4876 			    "==> nxge_set_priv_prop: name %s (null)", pr_name));
4877 			err = EINVAL;
4878 			return (err);
4879 		}
4880 
4881 		(void) ddi_strtol(pr_val, (char **)NULL, 0, &result);
4882 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4883 		    "<== nxge_set_priv_prop: name %s "
4884 		    "(lso %d pr_val %s value %d)",
4885 		    pr_name, nxgep->soft_lso_enable, pr_val, result));
4886 
4887 		if (result > 1 || result < 0) {
4888 			err = EINVAL;
4889 		} else {
4890 			if (nxgep->soft_lso_enable == (uint32_t)result) {
4891 				NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4892 				    "no change (%d %d)",
4893 				    nxgep->soft_lso_enable, result));
4894 				return (0);
4895 			}
4896 		}
4897 
4898 		nxgep->soft_lso_enable = (int)result;
4899 
4900 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4901 		    "<== nxge_set_priv_prop: name %s (value %d)",
4902 		    pr_name, result));
4903 
4904 		return (err);
4905 	}
4906 	/*
4907 	 * Commands like "ndd -set /dev/nxge0 adv_10gfdx_cap 1" cause the
4908 	 * following code to be executed.
4909 	 */
4910 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
4911 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4912 		    (caddr_t)&param_arr[param_anar_10gfdx]);
4913 		return (err);
4914 	}
4915 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
4916 		err = nxge_param_set_mac(nxgep, NULL, NULL, (char *)pr_val,
4917 		    (caddr_t)&param_arr[param_anar_pause]);
4918 		return (err);
4919 	}
4920 
4921 	return (EINVAL);
4922 }
4923 
4924 static int
4925 nxge_get_priv_prop(p_nxge_t nxgep, const char *pr_name, uint_t pr_flags,
4926     uint_t pr_valsize, void *pr_val, uint_t *perm)
4927 {
4928 	p_nxge_param_t	param_arr = nxgep->param_arr;
4929 	char		valstr[MAXNAMELEN];
4930 	int		err = EINVAL;
4931 	uint_t		strsize;
4932 	boolean_t	is_default = (pr_flags & MAC_PROP_DEFAULT);
4933 
4934 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4935 	    "==> nxge_get_priv_prop: property %s", pr_name));
4936 
4937 	/* function number */
4938 	if (strcmp(pr_name, "_function_number") == 0) {
4939 		if (is_default)
4940 			return (ENOTSUP);
4941 		*perm = MAC_PROP_PERM_READ;
4942 		(void) snprintf(valstr, sizeof (valstr), "%d",
4943 		    nxgep->function_num);
4944 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4945 		    "==> nxge_get_priv_prop: name %s "
4946 		    "(value %d valstr %s)",
4947 		    pr_name, nxgep->function_num, valstr));
4948 
4949 		err = 0;
4950 		goto done;
4951 	}
4952 
4953 	/* Neptune firmware version */
4954 	if (strcmp(pr_name, "_fw_version") == 0) {
4955 		if (is_default)
4956 			return (ENOTSUP);
4957 		*perm = MAC_PROP_PERM_READ;
4958 		(void) snprintf(valstr, sizeof (valstr), "%s",
4959 		    nxgep->vpd_info.ver);
4960 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
4961 		    "==> nxge_get_priv_prop: name %s "
4962 		    "(value %d valstr %s)",
4963 		    pr_name, nxgep->vpd_info.ver, valstr));
4964 
4965 		err = 0;
4966 		goto done;
4967 	}
4968 
4969 	/* port PHY mode */
4970 	if (strcmp(pr_name, "_port_mode") == 0) {
4971 		if (is_default)
4972 			return (ENOTSUP);
4973 		*perm = MAC_PROP_PERM_READ;
4974 		switch (nxgep->mac.portmode) {
4975 		case PORT_1G_COPPER:
4976 			(void) snprintf(valstr, sizeof (valstr), "1G copper %s",
4977 			    nxgep->hot_swappable_phy ?
4978 			    "[Hot Swappable]" : "");
4979 			break;
4980 		case PORT_1G_FIBER:
4981 			(void) snprintf(valstr, sizeof (valstr), "1G fiber %s",
4982 			    nxgep->hot_swappable_phy ?
4983 			    "[hot swappable]" : "");
4984 			break;
4985 		case PORT_10G_COPPER:
4986 			(void) snprintf(valstr, sizeof (valstr),
4987 			    "10G copper %s",
4988 			    nxgep->hot_swappable_phy ?
4989 			    "[hot swappable]" : "");
4990 			break;
4991 		case PORT_10G_FIBER:
4992 			(void) snprintf(valstr, sizeof (valstr), "10G fiber %s",
4993 			    nxgep->hot_swappable_phy ?
4994 			    "[hot swappable]" : "");
4995 			break;
4996 		case PORT_10G_SERDES:
4997 			(void) snprintf(valstr, sizeof (valstr),
4998 			    "10G serdes %s", nxgep->hot_swappable_phy ?
4999 			    "[hot swappable]" : "");
5000 			break;
5001 		case PORT_1G_SERDES:
5002 			(void) snprintf(valstr, sizeof (valstr), "1G serdes %s",
5003 			    nxgep->hot_swappable_phy ?
5004 			    "[hot swappable]" : "");
5005 			break;
5006 		case PORT_1G_TN1010:
5007 			(void) snprintf(valstr, sizeof (valstr),
5008 			    "1G TN1010 copper %s", nxgep->hot_swappable_phy ?
5009 			    "[hot swappable]" : "");
5010 			break;
5011 		case PORT_10G_TN1010:
5012 			(void) snprintf(valstr, sizeof (valstr),
5013 			    "10G TN1010 copper %s", nxgep->hot_swappable_phy ?
5014 			    "[hot swappable]" : "");
5015 			break;
5016 		case PORT_1G_RGMII_FIBER:
5017 			(void) snprintf(valstr, sizeof (valstr),
5018 			    "1G rgmii fiber %s", nxgep->hot_swappable_phy ?
5019 			    "[hot swappable]" : "");
5020 			break;
5021 		case PORT_HSP_MODE:
5022 			(void) snprintf(valstr, sizeof (valstr),
5023 			    "phy not present[hot swappable]");
5024 			break;
5025 		default:
5026 			(void) snprintf(valstr, sizeof (valstr), "unknown %s",
5027 			    nxgep->hot_swappable_phy ?
5028 			    "[hot swappable]" : "");
5029 			break;
5030 		}
5031 
5032 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5033 		    "==> nxge_get_priv_prop: name %s (value %s)",
5034 		    pr_name, valstr));
5035 
5036 		err = 0;
5037 		goto done;
5038 	}
5039 
5040 	/* Hot swappable PHY */
5041 	if (strcmp(pr_name, "_hot_swap_phy") == 0) {
5042 		if (is_default)
5043 			return (ENOTSUP);
5044 		*perm = MAC_PROP_PERM_READ;
5045 		(void) snprintf(valstr, sizeof (valstr), "%s",
5046 		    nxgep->hot_swappable_phy ?
5047 		    "yes" : "no");
5048 
5049 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5050 		    "==> nxge_get_priv_prop: name %s "
5051 		    "(value %d valstr %s)",
5052 		    pr_name, nxgep->hot_swappable_phy, valstr));
5053 
5054 		err = 0;
5055 		goto done;
5056 	}
5057 
5058 
5059 	/* accept jumbo */
5060 	if (strcmp(pr_name, "_accept_jumbo") == 0) {
5061 		if (is_default)
5062 			(void) snprintf(valstr, sizeof (valstr),  "%d", 0);
5063 		else
5064 			(void) snprintf(valstr, sizeof (valstr),
5065 			    "%d", nxgep->mac.is_jumbo);
5066 		err = 0;
5067 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5068 		    "==> nxge_get_priv_prop: name %s (value %d (%d, %d))",
5069 		    pr_name,
5070 		    (uint32_t)param_arr[param_accept_jumbo].value,
5071 		    nxgep->mac.is_jumbo,
5072 		    nxge_jumbo_enable));
5073 
5074 		goto done;
5075 	}
5076 
5077 	/* Receive Interrupt Blanking Parameters */
5078 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
5079 		err = 0;
5080 		if (is_default) {
5081 			(void) snprintf(valstr, sizeof (valstr),
5082 			    "%d", RXDMA_RCR_TO_DEFAULT);
5083 			goto done;
5084 		}
5085 
5086 		(void) snprintf(valstr, sizeof (valstr), "%d",
5087 		    nxgep->intr_timeout);
5088 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5089 		    "==> nxge_get_priv_prop: name %s (value %d)",
5090 		    pr_name,
5091 		    (uint32_t)nxgep->intr_timeout));
5092 		goto done;
5093 	}
5094 
5095 	if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
5096 		err = 0;
5097 		if (is_default) {
5098 			(void) snprintf(valstr, sizeof (valstr),
5099 			    "%d", RXDMA_RCR_PTHRES_DEFAULT);
5100 			goto done;
5101 		}
5102 		(void) snprintf(valstr, sizeof (valstr), "%d",
5103 		    nxgep->intr_threshold);
5104 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5105 		    "==> nxge_get_priv_prop: name %s (value %d)",
5106 		    pr_name, (uint32_t)nxgep->intr_threshold));
5107 
5108 		goto done;
5109 	}
5110 
5111 	/* Classification and Load Distribution Configuration */
5112 	if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
5113 		if (is_default) {
5114 			(void) snprintf(valstr, sizeof (valstr), "%x",
5115 			    NXGE_CLASS_FLOW_GEN_SERVER);
5116 			err = 0;
5117 			goto done;
5118 		}
5119 		err = nxge_dld_get_ip_opt(nxgep,
5120 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
5121 
5122 		(void) snprintf(valstr, sizeof (valstr), "%x",
5123 		    (int)param_arr[param_class_opt_ipv4_tcp].value);
5124 
5125 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5126 		    "==> nxge_get_priv_prop: %s", valstr));
5127 		goto done;
5128 	}
5129 
5130 	if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
5131 		if (is_default) {
5132 			(void) snprintf(valstr, sizeof (valstr), "%x",
5133 			    NXGE_CLASS_FLOW_GEN_SERVER);
5134 			err = 0;
5135 			goto done;
5136 		}
5137 		err = nxge_dld_get_ip_opt(nxgep,
5138 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
5139 
5140 		(void) snprintf(valstr, sizeof (valstr), "%x",
5141 		    (int)param_arr[param_class_opt_ipv4_udp].value);
5142 
5143 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5144 		    "==> nxge_get_priv_prop: %s", valstr));
5145 		goto done;
5146 	}
5147 	if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
5148 		if (is_default) {
5149 			(void) snprintf(valstr, sizeof (valstr), "%x",
5150 			    NXGE_CLASS_FLOW_GEN_SERVER);
5151 			err = 0;
5152 			goto done;
5153 		}
5154 		err = nxge_dld_get_ip_opt(nxgep,
5155 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
5156 
5157 		(void) snprintf(valstr, sizeof (valstr), "%x",
5158 		    (int)param_arr[param_class_opt_ipv4_ah].value);
5159 
5160 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5161 		    "==> nxge_get_priv_prop: %s", valstr));
5162 		goto done;
5163 	}
5164 
5165 	if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
5166 		if (is_default) {
5167 			(void) snprintf(valstr, sizeof (valstr), "%x",
5168 			    NXGE_CLASS_FLOW_GEN_SERVER);
5169 			err = 0;
5170 			goto done;
5171 		}
5172 		err = nxge_dld_get_ip_opt(nxgep,
5173 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
5174 
5175 		(void) snprintf(valstr, sizeof (valstr), "%x",
5176 		    (int)param_arr[param_class_opt_ipv4_sctp].value);
5177 
5178 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5179 		    "==> nxge_get_priv_prop: %s", valstr));
5180 		goto done;
5181 	}
5182 
5183 	if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
5184 		if (is_default) {
5185 			(void) snprintf(valstr, sizeof (valstr), "%x",
5186 			    NXGE_CLASS_FLOW_GEN_SERVER);
5187 			err = 0;
5188 			goto done;
5189 		}
5190 		err = nxge_dld_get_ip_opt(nxgep,
5191 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
5192 
5193 		(void) snprintf(valstr, sizeof (valstr), "%x",
5194 		    (int)param_arr[param_class_opt_ipv6_tcp].value);
5195 
5196 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5197 		    "==> nxge_get_priv_prop: %s", valstr));
5198 		goto done;
5199 	}
5200 
5201 	if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
5202 		if (is_default) {
5203 			(void) snprintf(valstr, sizeof (valstr), "%x",
5204 			    NXGE_CLASS_FLOW_GEN_SERVER);
5205 			err = 0;
5206 			goto done;
5207 		}
5208 		err = nxge_dld_get_ip_opt(nxgep,
5209 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
5210 
5211 		(void) snprintf(valstr, sizeof (valstr), "%x",
5212 		    (int)param_arr[param_class_opt_ipv6_udp].value);
5213 
5214 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5215 		    "==> nxge_get_priv_prop: %s", valstr));
5216 		goto done;
5217 	}
5218 
5219 	if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
5220 		if (is_default) {
5221 			(void) snprintf(valstr, sizeof (valstr), "%x",
5222 			    NXGE_CLASS_FLOW_GEN_SERVER);
5223 			err = 0;
5224 			goto done;
5225 		}
5226 		err = nxge_dld_get_ip_opt(nxgep,
5227 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
5228 
5229 		(void) snprintf(valstr, sizeof (valstr), "%x",
5230 		    (int)param_arr[param_class_opt_ipv6_ah].value);
5231 
5232 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5233 		    "==> nxge_get_priv_prop: %s", valstr));
5234 		goto done;
5235 	}
5236 
5237 	if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
5238 		if (is_default) {
5239 			(void) snprintf(valstr, sizeof (valstr), "%x",
5240 			    NXGE_CLASS_FLOW_GEN_SERVER);
5241 			err = 0;
5242 			goto done;
5243 		}
5244 		err = nxge_dld_get_ip_opt(nxgep,
5245 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
5246 
5247 		(void) snprintf(valstr, sizeof (valstr), "%x",
5248 		    (int)param_arr[param_class_opt_ipv6_sctp].value);
5249 
5250 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5251 		    "==> nxge_get_priv_prop: %s", valstr));
5252 		goto done;
5253 	}
5254 
5255 	/* Software LSO */
5256 	if (strcmp(pr_name, "_soft_lso_enable") == 0) {
5257 		if (is_default) {
5258 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5259 			err = 0;
5260 			goto done;
5261 		}
5262 		(void) snprintf(valstr, sizeof (valstr),
5263 		    "%d", nxgep->soft_lso_enable);
5264 		err = 0;
5265 		NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5266 		    "==> nxge_get_priv_prop: name %s (value %d)",
5267 		    pr_name, nxgep->soft_lso_enable));
5268 
5269 		goto done;
5270 	}
5271 	if (strcmp(pr_name, "_adv_10gfdx_cap") == 0) {
5272 		err = 0;
5273 		if (is_default ||
5274 		    nxgep->param_arr[param_anar_10gfdx].value != 0) {
5275 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5276 			goto done;
5277 		} else {
5278 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5279 			goto done;
5280 		}
5281 	}
5282 	if (strcmp(pr_name, "_adv_pause_cap") == 0) {
5283 		err = 0;
5284 		if (is_default ||
5285 		    nxgep->param_arr[param_anar_pause].value != 0) {
5286 			(void) snprintf(valstr, sizeof (valstr), "%d", 1);
5287 			goto done;
5288 		} else {
5289 			(void) snprintf(valstr, sizeof (valstr), "%d", 0);
5290 			goto done;
5291 		}
5292 	}
5293 
5294 done:
5295 	if (err == 0) {
5296 		strsize = (uint_t)strlen(valstr);
5297 		if (pr_valsize < strsize) {
5298 			err = ENOBUFS;
5299 		} else {
5300 			(void) strlcpy(pr_val, valstr, pr_valsize);
5301 		}
5302 	}
5303 
5304 	NXGE_DEBUG_MSG((nxgep, NXGE_CTL,
5305 	    "<== nxge_get_priv_prop: return %d", err));
5306 	return (err);
5307 }
5308 
5309 /*
5310  * Module loading and removing entry points.
5311  */
5312 
5313 DDI_DEFINE_STREAM_OPS(nxge_dev_ops, nulldev, nulldev, nxge_attach, nxge_detach,
5314     nodev, NULL, D_MP, NULL, nxge_quiesce);
5315 
5316 #define	NXGE_DESC_VER		"Sun NIU 10Gb Ethernet"
5317 
5318 /*
5319  * Module linkage information for the kernel.
5320  */
5321 static struct modldrv 	nxge_modldrv = {
5322 	&mod_driverops,
5323 	NXGE_DESC_VER,
5324 	&nxge_dev_ops
5325 };
5326 
5327 static struct modlinkage modlinkage = {
5328 	MODREV_1, (void *) &nxge_modldrv, NULL
5329 };
5330 
5331 int
5332 _init(void)
5333 {
5334 	int		status;
5335 
5336 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
5337 	mac_init_ops(&nxge_dev_ops, "nxge");
5338 	status = ddi_soft_state_init(&nxge_list, sizeof (nxge_t), 0);
5339 	if (status != 0) {
5340 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL,
5341 		    "failed to init device soft state"));
5342 		goto _init_exit;
5343 	}
5344 	status = mod_install(&modlinkage);
5345 	if (status != 0) {
5346 		ddi_soft_state_fini(&nxge_list);
5347 		NXGE_ERROR_MSG((NULL, NXGE_ERR_CTL, "Mod install failed"));
5348 		goto _init_exit;
5349 	}
5350 
5351 	MUTEX_INIT(&nxge_common_lock, NULL, MUTEX_DRIVER, NULL);
5352 
5353 _init_exit:
5354 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_init status = 0x%X", status));
5355 
5356 	return (status);
5357 }
5358 
5359 int
5360 _fini(void)
5361 {
5362 	int		status;
5363 
5364 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
5365 
5366 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
5367 
5368 	if (nxge_mblks_pending)
5369 		return (EBUSY);
5370 
5371 	status = mod_remove(&modlinkage);
5372 	if (status != DDI_SUCCESS) {
5373 		NXGE_DEBUG_MSG((NULL, MOD_CTL,
5374 		    "Module removal failed 0x%08x",
5375 		    status));
5376 		goto _fini_exit;
5377 	}
5378 
5379 	mac_fini_ops(&nxge_dev_ops);
5380 
5381 	ddi_soft_state_fini(&nxge_list);
5382 
5383 	MUTEX_DESTROY(&nxge_common_lock);
5384 _fini_exit:
5385 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "_fini status = 0x%08x", status));
5386 
5387 	return (status);
5388 }
5389 
5390 int
5391 _info(struct modinfo *modinfop)
5392 {
5393 	int		status;
5394 
5395 	NXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
5396 	status = mod_info(&modlinkage, modinfop);
5397 	NXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
5398 
5399 	return (status);
5400 }
5401 
5402 /*ARGSUSED*/
5403 static int
5404 nxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5405 {
5406 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5407 	p_nxge_t		nxgep = rhp->nxgep;
5408 	uint32_t		channel;
5409 	p_tx_ring_t		ring;
5410 
5411 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5412 	ring = nxgep->tx_rings->rings[channel];
5413 
5414 	MUTEX_ENTER(&ring->lock);
5415 	ring->tx_ring_handle = rhp->ring_handle;
5416 	MUTEX_EXIT(&ring->lock);
5417 
5418 	return (0);
5419 }
5420 
5421 static void
5422 nxge_tx_ring_stop(mac_ring_driver_t rdriver)
5423 {
5424 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5425 	p_nxge_t		nxgep = rhp->nxgep;
5426 	uint32_t		channel;
5427 	p_tx_ring_t		ring;
5428 
5429 	channel = nxgep->pt_config.hw_config.tdc.start + rhp->index;
5430 	ring = nxgep->tx_rings->rings[channel];
5431 
5432 	MUTEX_ENTER(&ring->lock);
5433 	ring->tx_ring_handle = (mac_ring_handle_t)NULL;
5434 	MUTEX_EXIT(&ring->lock);
5435 }
5436 
5437 static int
5438 nxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
5439 {
5440 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5441 	p_nxge_t		nxgep = rhp->nxgep;
5442 	uint32_t		channel;
5443 	p_rx_rcr_ring_t		ring;
5444 	int			i;
5445 
5446 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5447 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5448 
5449 	MUTEX_ENTER(&ring->lock);
5450 
5451 	if (nxgep->rx_channel_started[channel] == B_TRUE) {
5452 		MUTEX_EXIT(&ring->lock);
5453 		return (0);
5454 	}
5455 
5456 	/* set rcr_ring */
5457 	for (i = 0; i < nxgep->ldgvp->maxldvs; i++) {
5458 		if ((nxgep->ldgvp->ldvp[i].is_rxdma == 1) &&
5459 		    (nxgep->ldgvp->ldvp[i].channel == channel)) {
5460 			ring->ldvp = &nxgep->ldgvp->ldvp[i];
5461 			ring->ldgp = nxgep->ldgvp->ldvp[i].ldgp;
5462 		}
5463 	}
5464 
5465 	nxgep->rx_channel_started[channel] = B_TRUE;
5466 	ring->rcr_mac_handle = rhp->ring_handle;
5467 	ring->rcr_gen_num = mr_gen_num;
5468 	MUTEX_EXIT(&ring->lock);
5469 
5470 	return (0);
5471 }
5472 
5473 static void
5474 nxge_rx_ring_stop(mac_ring_driver_t rdriver)
5475 {
5476 	p_nxge_ring_handle_t	rhp = (p_nxge_ring_handle_t)rdriver;
5477 	p_nxge_t		nxgep = rhp->nxgep;
5478 	uint32_t		channel;
5479 	p_rx_rcr_ring_t		ring;
5480 
5481 	channel = nxgep->pt_config.hw_config.start_rdc + rhp->index;
5482 	ring =  nxgep->rx_rcr_rings->rcr_rings[channel];
5483 
5484 	MUTEX_ENTER(&ring->lock);
5485 	nxgep->rx_channel_started[channel] = B_FALSE;
5486 	ring->rcr_mac_handle = NULL;
5487 	MUTEX_EXIT(&ring->lock);
5488 }
5489 
5490 /*
5491  * Callback funtion for MAC layer to register all rings.
5492  */
5493 static void
5494 nxge_fill_ring(void *arg, mac_ring_type_t rtype, const int rg_index,
5495     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
5496 {
5497 	p_nxge_t		nxgep = (p_nxge_t)arg;
5498 	p_nxge_hw_pt_cfg_t	p_cfgp = &nxgep->pt_config.hw_config;
5499 
5500 	NXGE_DEBUG_MSG((nxgep, TX_CTL,
5501 	    "==> nxge_fill_ring 0x%x index %d", rtype, index));
5502 
5503 	switch (rtype) {
5504 	case MAC_RING_TYPE_TX: {
5505 		p_nxge_ring_handle_t	rhandlep;
5506 
5507 		NXGE_DEBUG_MSG((nxgep, TX_CTL,
5508 		    "==> nxge_fill_ring (TX) 0x%x index %d ntdcs %d",
5509 		    rtype, index, p_cfgp->tdc.count));
5510 
5511 		ASSERT((index >= 0) && (index < p_cfgp->tdc.count));
5512 		rhandlep = &nxgep->tx_ring_handles[index];
5513 		rhandlep->nxgep = nxgep;
5514 		rhandlep->index = index;
5515 		rhandlep->ring_handle = rh;
5516 
5517 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5518 		infop->mri_start = nxge_tx_ring_start;
5519 		infop->mri_stop = nxge_tx_ring_stop;
5520 		infop->mri_tx = nxge_tx_ring_send;
5521 
5522 		break;
5523 	}
5524 	case MAC_RING_TYPE_RX: {
5525 		p_nxge_ring_handle_t	rhandlep;
5526 		int			nxge_rindex;
5527 		mac_intr_t		nxge_mac_intr;
5528 
5529 		NXGE_DEBUG_MSG((nxgep, RX_CTL,
5530 		    "==> nxge_fill_ring (RX) 0x%x index %d nrdcs %d",
5531 		    rtype, index, p_cfgp->max_rdcs));
5532 
5533 		/*
5534 		 * 'index' is the ring index within the group.
5535 		 * Find the ring index in the nxge instance.
5536 		 */
5537 		nxge_rindex = nxge_get_rxring_index(nxgep, rg_index, index);
5538 
5539 		ASSERT((nxge_rindex >= 0) && (nxge_rindex < p_cfgp->max_rdcs));
5540 		rhandlep = &nxgep->rx_ring_handles[nxge_rindex];
5541 		rhandlep->nxgep = nxgep;
5542 		rhandlep->index = nxge_rindex;
5543 		rhandlep->ring_handle = rh;
5544 
5545 		/*
5546 		 * Entrypoint to enable interrupt (disable poll) and
5547 		 * disable interrupt (enable poll).
5548 		 */
5549 		nxge_mac_intr.mi_handle = (mac_intr_handle_t)rhandlep;
5550 		nxge_mac_intr.mi_enable = (mac_intr_enable_t)nxge_disable_poll;
5551 		nxge_mac_intr.mi_disable = (mac_intr_disable_t)nxge_enable_poll;
5552 		infop->mri_driver = (mac_ring_driver_t)rhandlep;
5553 		infop->mri_start = nxge_rx_ring_start;
5554 		infop->mri_stop = nxge_rx_ring_stop;
5555 		infop->mri_intr = nxge_mac_intr; /* ??? */
5556 		infop->mri_poll = nxge_rx_poll;
5557 
5558 		break;
5559 	}
5560 	default:
5561 		break;
5562 	}
5563 
5564 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_fill_ring 0x%x",
5565 	    rtype));
5566 }
5567 
5568 static void
5569 nxge_group_add_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5570     mac_ring_type_t type)
5571 {
5572 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5573 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5574 	nxge_t			*nxge;
5575 	nxge_grp_t		*grp;
5576 	nxge_rdc_grp_t		*rdc_grp;
5577 	uint16_t		channel;	/* device-wise ring id */
5578 	int			dev_gindex;
5579 	int			rv;
5580 
5581 	nxge = rgroup->nxgep;
5582 
5583 	switch (type) {
5584 	case MAC_RING_TYPE_TX:
5585 		/*
5586 		 * nxge_grp_dc_add takes a channel number which is a
5587 		 * "devise" ring ID.
5588 		 */
5589 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5590 
5591 		/*
5592 		 * Remove the ring from the default group
5593 		 */
5594 		if (rgroup->gindex != 0) {
5595 			(void) nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5596 		}
5597 
5598 		/*
5599 		 * nxge->tx_set.group[] is an array of groups indexed by
5600 		 * a "port" group ID.
5601 		 */
5602 		grp = nxge->tx_set.group[rgroup->gindex];
5603 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5604 		if (rv != 0) {
5605 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5606 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5607 		}
5608 		break;
5609 
5610 	case MAC_RING_TYPE_RX:
5611 		/*
5612 		 * nxge->rx_set.group[] is an array of groups indexed by
5613 		 * a "port" group ID.
5614 		 */
5615 		grp = nxge->rx_set.group[rgroup->gindex];
5616 
5617 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5618 		    rgroup->gindex;
5619 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5620 
5621 		/*
5622 		 * nxge_grp_dc_add takes a channel number which is a
5623 		 * "devise" ring ID.
5624 		 */
5625 		channel = nxge->pt_config.hw_config.start_rdc + rhandle->index;
5626 		rv = nxge_grp_dc_add(nxge, grp, VP_BOUND_RX, channel);
5627 		if (rv != 0) {
5628 			NXGE_ERROR_MSG((nxge, NXGE_ERR_CTL,
5629 			    "nxge_group_add_ring: nxge_grp_dc_add failed"));
5630 		}
5631 
5632 		rdc_grp->map |= (1 << channel);
5633 		rdc_grp->max_rdcs++;
5634 
5635 		(void) nxge_init_fzc_rdc_tbl(nxge, rgroup->rdctbl);
5636 		break;
5637 	}
5638 }
5639 
5640 static void
5641 nxge_group_rem_ring(mac_group_driver_t gh, mac_ring_driver_t rh,
5642     mac_ring_type_t type)
5643 {
5644 	nxge_ring_group_t	*rgroup = (nxge_ring_group_t *)gh;
5645 	nxge_ring_handle_t	*rhandle = (nxge_ring_handle_t *)rh;
5646 	nxge_t			*nxge;
5647 	uint16_t		channel;	/* device-wise ring id */
5648 	nxge_rdc_grp_t		*rdc_grp;
5649 	int			dev_gindex;
5650 
5651 	nxge = rgroup->nxgep;
5652 
5653 	switch (type) {
5654 	case MAC_RING_TYPE_TX:
5655 		dev_gindex = nxge->pt_config.hw_config.def_mac_txdma_grpid +
5656 		    rgroup->gindex;
5657 		channel = nxge->pt_config.hw_config.tdc.start + rhandle->index;
5658 		nxge_grp_dc_remove(nxge, VP_BOUND_TX, channel);
5659 
5660 		/*
5661 		 * Add the ring back to the default group
5662 		 */
5663 		if (rgroup->gindex != 0) {
5664 			nxge_grp_t *grp;
5665 			grp = nxge->tx_set.group[0];
5666 			(void) nxge_grp_dc_add(nxge, grp, VP_BOUND_TX, channel);
5667 		}
5668 		break;
5669 
5670 	case MAC_RING_TYPE_RX:
5671 		dev_gindex = nxge->pt_config.hw_config.def_mac_rxdma_grpid +
5672 		    rgroup->gindex;
5673 		rdc_grp = &nxge->pt_config.rdc_grps[dev_gindex];
5674 		channel = rdc_grp->start_rdc + rhandle->index;
5675 		nxge_grp_dc_remove(nxge, VP_BOUND_RX, channel);
5676 
5677 		rdc_grp->map &= ~(1 << channel);
5678 		rdc_grp->max_rdcs--;
5679 
5680 		(void) nxge_init_fzc_rdc_tbl(nxge, rgroup->rdctbl);
5681 		break;
5682 	}
5683 }
5684 
5685 
5686 /*ARGSUSED*/
5687 static nxge_status_t
5688 nxge_add_intrs(p_nxge_t nxgep)
5689 {
5690 
5691 	int		intr_types;
5692 	int		type = 0;
5693 	int		ddi_status = DDI_SUCCESS;
5694 	nxge_status_t	status = NXGE_OK;
5695 
5696 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs"));
5697 
5698 	nxgep->nxge_intr_type.intr_registered = B_FALSE;
5699 	nxgep->nxge_intr_type.intr_enabled = B_FALSE;
5700 	nxgep->nxge_intr_type.msi_intx_cnt = 0;
5701 	nxgep->nxge_intr_type.intr_added = 0;
5702 	nxgep->nxge_intr_type.niu_msi_enable = B_FALSE;
5703 	nxgep->nxge_intr_type.intr_type = 0;
5704 
5705 	if (nxgep->niu_type == N2_NIU) {
5706 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5707 	} else if (nxge_msi_enable) {
5708 		nxgep->nxge_intr_type.niu_msi_enable = B_TRUE;
5709 	}
5710 
5711 	/* Get the supported interrupt types */
5712 	if ((ddi_status = ddi_intr_get_supported_types(nxgep->dip, &intr_types))
5713 	    != DDI_SUCCESS) {
5714 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_add_intrs: "
5715 		    "ddi_intr_get_supported_types failed: status 0x%08x",
5716 		    ddi_status));
5717 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5718 	}
5719 	nxgep->nxge_intr_type.intr_types = intr_types;
5720 
5721 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5722 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5723 
5724 	/*
5725 	 * Solaris MSIX is not supported yet. use MSI for now.
5726 	 * nxge_msi_enable (1):
5727 	 *	1 - MSI		2 - MSI-X	others - FIXED
5728 	 */
5729 	switch (nxge_msi_enable) {
5730 	default:
5731 		type = DDI_INTR_TYPE_FIXED;
5732 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5733 		    "use fixed (intx emulation) type %08x",
5734 		    type));
5735 		break;
5736 
5737 	case 2:
5738 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5739 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
5740 		if (intr_types & DDI_INTR_TYPE_MSIX) {
5741 			type = DDI_INTR_TYPE_MSIX;
5742 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5743 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5744 			    type));
5745 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
5746 			type = DDI_INTR_TYPE_MSI;
5747 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5748 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5749 			    type));
5750 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5751 			type = DDI_INTR_TYPE_FIXED;
5752 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5753 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5754 			    type));
5755 		}
5756 		break;
5757 
5758 	case 1:
5759 		if (intr_types & DDI_INTR_TYPE_MSI) {
5760 			type = DDI_INTR_TYPE_MSI;
5761 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs: "
5762 			    "ddi_intr_get_supported_types: MSI 0x%08x",
5763 			    type));
5764 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
5765 			type = DDI_INTR_TYPE_MSIX;
5766 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5767 			    "ddi_intr_get_supported_types: MSIX 0x%08x",
5768 			    type));
5769 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
5770 			type = DDI_INTR_TYPE_FIXED;
5771 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5772 			    "ddi_intr_get_supported_types: MSXED0x%08x",
5773 			    type));
5774 		}
5775 	}
5776 
5777 	nxgep->nxge_intr_type.intr_type = type;
5778 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
5779 	    type == DDI_INTR_TYPE_FIXED) &&
5780 	    nxgep->nxge_intr_type.niu_msi_enable) {
5781 		if ((status = nxge_add_intrs_adv(nxgep)) != DDI_SUCCESS) {
5782 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5783 			    " nxge_add_intrs: "
5784 			    " nxge_add_intrs_adv failed: status 0x%08x",
5785 			    status));
5786 			return (status);
5787 		} else {
5788 			NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs: "
5789 			    "interrupts registered : type %d", type));
5790 			nxgep->nxge_intr_type.intr_registered = B_TRUE;
5791 
5792 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
5793 			    "\nAdded advanced nxge add_intr_adv "
5794 			    "intr type 0x%x\n", type));
5795 
5796 			return (status);
5797 		}
5798 	}
5799 
5800 	if (!nxgep->nxge_intr_type.intr_registered) {
5801 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_add_intrs: "
5802 		    "failed to register interrupts"));
5803 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5804 	}
5805 
5806 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_add_intrs"));
5807 	return (status);
5808 }
5809 
5810 static nxge_status_t
5811 nxge_add_intrs_adv(p_nxge_t nxgep)
5812 {
5813 	int		intr_type;
5814 	p_nxge_intr_t	intrp;
5815 
5816 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv"));
5817 
5818 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5819 	intr_type = intrp->intr_type;
5820 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_add_intrs_adv: type 0x%x",
5821 	    intr_type));
5822 
5823 	switch (intr_type) {
5824 	case DDI_INTR_TYPE_MSI: /* 0x2 */
5825 	case DDI_INTR_TYPE_MSIX: /* 0x4 */
5826 		return (nxge_add_intrs_adv_type(nxgep, intr_type));
5827 
5828 	case DDI_INTR_TYPE_FIXED: /* 0x1 */
5829 		return (nxge_add_intrs_adv_type_fix(nxgep, intr_type));
5830 
5831 	default:
5832 		return (NXGE_ERROR);
5833 	}
5834 }
5835 
5836 
5837 /*ARGSUSED*/
5838 static nxge_status_t
5839 nxge_add_intrs_adv_type(p_nxge_t nxgep, uint32_t int_type)
5840 {
5841 	dev_info_t		*dip = nxgep->dip;
5842 	p_nxge_ldg_t		ldgp;
5843 	p_nxge_intr_t		intrp;
5844 	uint_t			*inthandler;
5845 	void			*arg1, *arg2;
5846 	int			behavior;
5847 	int			nintrs, navail, nrequest;
5848 	int			nactual, nrequired;
5849 	int			inum = 0;
5850 	int			x, y;
5851 	int			ddi_status = DDI_SUCCESS;
5852 	nxge_status_t		status = NXGE_OK;
5853 
5854 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type"));
5855 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
5856 	intrp->start_inum = 0;
5857 
5858 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
5859 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
5860 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5861 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
5862 		    "nintrs: %d", ddi_status, nintrs));
5863 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5864 	}
5865 
5866 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
5867 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
5868 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5869 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
5870 		    "nintrs: %d", ddi_status, navail));
5871 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5872 	}
5873 
5874 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
5875 	    "ddi_intr_get_navail() returned: nintrs %d, navail %d",
5876 	    nintrs, navail));
5877 
5878 	/* PSARC/2007/453 MSI-X interrupt limit override */
5879 	if (int_type == DDI_INTR_TYPE_MSIX) {
5880 		nrequest = nxge_create_msi_property(nxgep);
5881 		if (nrequest < navail) {
5882 			navail = nrequest;
5883 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5884 			    "nxge_add_intrs_adv_type: nintrs %d "
5885 			    "navail %d (nrequest %d)",
5886 			    nintrs, navail, nrequest));
5887 		}
5888 	}
5889 
5890 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
5891 		/* MSI must be power of 2 */
5892 		if ((navail & 16) == 16) {
5893 			navail = 16;
5894 		} else if ((navail & 8) == 8) {
5895 			navail = 8;
5896 		} else if ((navail & 4) == 4) {
5897 			navail = 4;
5898 		} else if ((navail & 2) == 2) {
5899 			navail = 2;
5900 		} else {
5901 			navail = 1;
5902 		}
5903 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5904 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
5905 		    "navail %d", nintrs, navail));
5906 	}
5907 
5908 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
5909 	    DDI_INTR_ALLOC_NORMAL);
5910 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
5911 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
5912 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
5913 	    navail, &nactual, behavior);
5914 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
5915 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5916 		    " ddi_intr_alloc() failed: %d",
5917 		    ddi_status));
5918 		kmem_free(intrp->htable, intrp->intr_size);
5919 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5920 	}
5921 
5922 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
5923 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
5924 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5925 		    " ddi_intr_get_pri() failed: %d",
5926 		    ddi_status));
5927 		/* Free already allocated interrupts */
5928 		for (y = 0; y < nactual; y++) {
5929 			(void) ddi_intr_free(intrp->htable[y]);
5930 		}
5931 
5932 		kmem_free(intrp->htable, intrp->intr_size);
5933 		return (NXGE_ERROR | NXGE_DDI_FAILED);
5934 	}
5935 
5936 	nrequired = 0;
5937 	switch (nxgep->niu_type) {
5938 	default:
5939 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
5940 		break;
5941 
5942 	case N2_NIU:
5943 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
5944 		break;
5945 	}
5946 
5947 	if (status != NXGE_OK) {
5948 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5949 		    "nxge_add_intrs_adv_typ:nxge_ldgv_init "
5950 		    "failed: 0x%x", status));
5951 		/* Free already allocated interrupts */
5952 		for (y = 0; y < nactual; y++) {
5953 			(void) ddi_intr_free(intrp->htable[y]);
5954 		}
5955 
5956 		kmem_free(intrp->htable, intrp->intr_size);
5957 		return (status);
5958 	}
5959 
5960 	ldgp = nxgep->ldgvp->ldgp;
5961 	for (x = 0; x < nrequired; x++, ldgp++) {
5962 		ldgp->vector = (uint8_t)x;
5963 		ldgp->intdata = SID_DATA(ldgp->func, x);
5964 		arg1 = ldgp->ldvp;
5965 		arg2 = nxgep;
5966 		if (ldgp->nldvs == 1) {
5967 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
5968 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5969 			    "nxge_add_intrs_adv_type: "
5970 			    "arg1 0x%x arg2 0x%x: "
5971 			    "1-1 int handler (entry %d intdata 0x%x)\n",
5972 			    arg1, arg2,
5973 			    x, ldgp->intdata));
5974 		} else if (ldgp->nldvs > 1) {
5975 			inthandler = (uint_t *)ldgp->sys_intr_handler;
5976 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
5977 			    "nxge_add_intrs_adv_type: "
5978 			    "arg1 0x%x arg2 0x%x: "
5979 			    "nldevs %d int handler "
5980 			    "(entry %d intdata 0x%x)\n",
5981 			    arg1, arg2,
5982 			    ldgp->nldvs, x, ldgp->intdata));
5983 		}
5984 
5985 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
5986 		    "==> nxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
5987 		    "htable 0x%llx", x, intrp->htable[x]));
5988 
5989 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
5990 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
5991 		    != DDI_SUCCESS) {
5992 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
5993 			    "==> nxge_add_intrs_adv_type: failed #%d "
5994 			    "status 0x%x", x, ddi_status));
5995 			for (y = 0; y < intrp->intr_added; y++) {
5996 				(void) ddi_intr_remove_handler(
5997 				    intrp->htable[y]);
5998 			}
5999 			/* Free already allocated intr */
6000 			for (y = 0; y < nactual; y++) {
6001 				(void) ddi_intr_free(intrp->htable[y]);
6002 			}
6003 			kmem_free(intrp->htable, intrp->intr_size);
6004 
6005 			(void) nxge_ldgv_uninit(nxgep);
6006 
6007 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6008 		}
6009 		intrp->intr_added++;
6010 	}
6011 
6012 	intrp->msi_intx_cnt = nactual;
6013 
6014 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6015 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
6016 	    navail, nactual,
6017 	    intrp->msi_intx_cnt,
6018 	    intrp->intr_added));
6019 
6020 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6021 
6022 	(void) nxge_intr_ldgv_init(nxgep);
6023 
6024 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type"));
6025 
6026 	return (status);
6027 }
6028 
6029 /*ARGSUSED*/
6030 static nxge_status_t
6031 nxge_add_intrs_adv_type_fix(p_nxge_t nxgep, uint32_t int_type)
6032 {
6033 	dev_info_t		*dip = nxgep->dip;
6034 	p_nxge_ldg_t		ldgp;
6035 	p_nxge_intr_t		intrp;
6036 	uint_t			*inthandler;
6037 	void			*arg1, *arg2;
6038 	int			behavior;
6039 	int			nintrs, navail;
6040 	int			nactual, nrequired;
6041 	int			inum = 0;
6042 	int			x, y;
6043 	int			ddi_status = DDI_SUCCESS;
6044 	nxge_status_t		status = NXGE_OK;
6045 
6046 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_add_intrs_adv_type_fix"));
6047 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6048 	intrp->start_inum = 0;
6049 
6050 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
6051 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
6052 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6053 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
6054 		    "nintrs: %d", status, nintrs));
6055 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6056 	}
6057 
6058 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
6059 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
6060 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6061 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
6062 		    "nintrs: %d", ddi_status, navail));
6063 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6064 	}
6065 
6066 	NXGE_DEBUG_MSG((nxgep, INT_CTL,
6067 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
6068 	    nintrs, navail));
6069 
6070 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
6071 	    DDI_INTR_ALLOC_NORMAL);
6072 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
6073 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
6074 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
6075 	    navail, &nactual, behavior);
6076 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
6077 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6078 		    " ddi_intr_alloc() failed: %d",
6079 		    ddi_status));
6080 		kmem_free(intrp->htable, intrp->intr_size);
6081 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6082 	}
6083 
6084 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
6085 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
6086 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6087 		    " ddi_intr_get_pri() failed: %d",
6088 		    ddi_status));
6089 		/* Free already allocated interrupts */
6090 		for (y = 0; y < nactual; y++) {
6091 			(void) ddi_intr_free(intrp->htable[y]);
6092 		}
6093 
6094 		kmem_free(intrp->htable, intrp->intr_size);
6095 		return (NXGE_ERROR | NXGE_DDI_FAILED);
6096 	}
6097 
6098 	nrequired = 0;
6099 	switch (nxgep->niu_type) {
6100 	default:
6101 		status = nxge_ldgv_init(nxgep, &nactual, &nrequired);
6102 		break;
6103 
6104 	case N2_NIU:
6105 		status = nxge_ldgv_init_n2(nxgep, &nactual, &nrequired);
6106 		break;
6107 	}
6108 
6109 	if (status != NXGE_OK) {
6110 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6111 		    "nxge_add_intrs_adv_type_fix:nxge_ldgv_init "
6112 		    "failed: 0x%x", status));
6113 		/* Free already allocated interrupts */
6114 		for (y = 0; y < nactual; y++) {
6115 			(void) ddi_intr_free(intrp->htable[y]);
6116 		}
6117 
6118 		kmem_free(intrp->htable, intrp->intr_size);
6119 		return (status);
6120 	}
6121 
6122 	ldgp = nxgep->ldgvp->ldgp;
6123 	for (x = 0; x < nrequired; x++, ldgp++) {
6124 		ldgp->vector = (uint8_t)x;
6125 		if (nxgep->niu_type != N2_NIU) {
6126 			ldgp->intdata = SID_DATA(ldgp->func, x);
6127 		}
6128 
6129 		arg1 = ldgp->ldvp;
6130 		arg2 = nxgep;
6131 		if (ldgp->nldvs == 1) {
6132 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
6133 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6134 			    "nxge_add_intrs_adv_type_fix: "
6135 			    "1-1 int handler(%d) ldg %d ldv %d "
6136 			    "arg1 $%p arg2 $%p\n",
6137 			    x, ldgp->ldg, ldgp->ldvp->ldv,
6138 			    arg1, arg2));
6139 		} else if (ldgp->nldvs > 1) {
6140 			inthandler = (uint_t *)ldgp->sys_intr_handler;
6141 			NXGE_DEBUG_MSG((nxgep, INT_CTL,
6142 			    "nxge_add_intrs_adv_type_fix: "
6143 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
6144 			    "arg1 0x%016llx arg2 0x%016llx\n",
6145 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
6146 			    arg1, arg2));
6147 		}
6148 
6149 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
6150 		    (ddi_intr_handler_t *)inthandler, arg1, arg2))
6151 		    != DDI_SUCCESS) {
6152 			NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6153 			    "==> nxge_add_intrs_adv_type_fix: failed #%d "
6154 			    "status 0x%x", x, ddi_status));
6155 			for (y = 0; y < intrp->intr_added; y++) {
6156 				(void) ddi_intr_remove_handler(
6157 				    intrp->htable[y]);
6158 			}
6159 			for (y = 0; y < nactual; y++) {
6160 				(void) ddi_intr_free(intrp->htable[y]);
6161 			}
6162 			/* Free already allocated intr */
6163 			kmem_free(intrp->htable, intrp->intr_size);
6164 
6165 			(void) nxge_ldgv_uninit(nxgep);
6166 
6167 			return (NXGE_ERROR | NXGE_DDI_FAILED);
6168 		}
6169 		intrp->intr_added++;
6170 	}
6171 
6172 	intrp->msi_intx_cnt = nactual;
6173 
6174 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
6175 
6176 	status = nxge_intr_ldgv_init(nxgep);
6177 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_add_intrs_adv_type_fix"));
6178 
6179 	return (status);
6180 }
6181 
6182 static void
6183 nxge_remove_intrs(p_nxge_t nxgep)
6184 {
6185 	int		i, inum;
6186 	p_nxge_intr_t	intrp;
6187 
6188 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs"));
6189 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6190 	if (!intrp->intr_registered) {
6191 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6192 		    "<== nxge_remove_intrs: interrupts not registered"));
6193 		return;
6194 	}
6195 
6196 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_remove_intrs:advanced"));
6197 
6198 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6199 		(void) ddi_intr_block_disable(intrp->htable,
6200 		    intrp->intr_added);
6201 	} else {
6202 		for (i = 0; i < intrp->intr_added; i++) {
6203 			(void) ddi_intr_disable(intrp->htable[i]);
6204 		}
6205 	}
6206 
6207 	for (inum = 0; inum < intrp->intr_added; inum++) {
6208 		if (intrp->htable[inum]) {
6209 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
6210 		}
6211 	}
6212 
6213 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
6214 		if (intrp->htable[inum]) {
6215 			NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6216 			    "nxge_remove_intrs: ddi_intr_free inum %d "
6217 			    "msi_intx_cnt %d intr_added %d",
6218 			    inum,
6219 			    intrp->msi_intx_cnt,
6220 			    intrp->intr_added));
6221 
6222 			(void) ddi_intr_free(intrp->htable[inum]);
6223 		}
6224 	}
6225 
6226 	kmem_free(intrp->htable, intrp->intr_size);
6227 	intrp->intr_registered = B_FALSE;
6228 	intrp->intr_enabled = B_FALSE;
6229 	intrp->msi_intx_cnt = 0;
6230 	intrp->intr_added = 0;
6231 
6232 	(void) nxge_ldgv_uninit(nxgep);
6233 
6234 	(void) ddi_prop_remove(DDI_DEV_T_NONE, nxgep->dip,
6235 	    "#msix-request");
6236 
6237 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_remove_intrs"));
6238 }
6239 
6240 /*ARGSUSED*/
6241 static void
6242 nxge_intrs_enable(p_nxge_t nxgep)
6243 {
6244 	p_nxge_intr_t	intrp;
6245 	int		i;
6246 	int		status;
6247 
6248 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable"));
6249 
6250 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6251 
6252 	if (!intrp->intr_registered) {
6253 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_intrs_enable: "
6254 		    "interrupts are not registered"));
6255 		return;
6256 	}
6257 
6258 	if (intrp->intr_enabled) {
6259 		NXGE_DEBUG_MSG((nxgep, INT_CTL,
6260 		    "<== nxge_intrs_enable: already enabled"));
6261 		return;
6262 	}
6263 
6264 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6265 		status = ddi_intr_block_enable(intrp->htable,
6266 		    intrp->intr_added);
6267 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6268 		    "block enable - status 0x%x total inums #%d\n",
6269 		    status, intrp->intr_added));
6270 	} else {
6271 		for (i = 0; i < intrp->intr_added; i++) {
6272 			status = ddi_intr_enable(intrp->htable[i]);
6273 			NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_enable "
6274 			    "ddi_intr_enable:enable - status 0x%x "
6275 			    "total inums %d enable inum #%d\n",
6276 			    status, intrp->intr_added, i));
6277 			if (status == DDI_SUCCESS) {
6278 				intrp->intr_enabled = B_TRUE;
6279 			}
6280 		}
6281 	}
6282 
6283 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_enable"));
6284 }
6285 
6286 /*ARGSUSED*/
6287 static void
6288 nxge_intrs_disable(p_nxge_t nxgep)
6289 {
6290 	p_nxge_intr_t	intrp;
6291 	int		i;
6292 
6293 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "==> nxge_intrs_disable"));
6294 
6295 	intrp = (p_nxge_intr_t)&nxgep->nxge_intr_type;
6296 
6297 	if (!intrp->intr_registered) {
6298 		NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable: "
6299 		    "interrupts are not registered"));
6300 		return;
6301 	}
6302 
6303 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
6304 		(void) ddi_intr_block_disable(intrp->htable,
6305 		    intrp->intr_added);
6306 	} else {
6307 		for (i = 0; i < intrp->intr_added; i++) {
6308 			(void) ddi_intr_disable(intrp->htable[i]);
6309 		}
6310 	}
6311 
6312 	intrp->intr_enabled = B_FALSE;
6313 	NXGE_DEBUG_MSG((nxgep, INT_CTL, "<== nxge_intrs_disable"));
6314 }
6315 
6316 static nxge_status_t
6317 nxge_mac_register(p_nxge_t nxgep)
6318 {
6319 	mac_register_t *macp;
6320 	int		status;
6321 
6322 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_mac_register"));
6323 
6324 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
6325 		return (NXGE_ERROR);
6326 
6327 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
6328 	macp->m_driver = nxgep;
6329 	macp->m_dip = nxgep->dip;
6330 	macp->m_src_addr = nxgep->ouraddr.ether_addr_octet;
6331 	macp->m_callbacks = &nxge_m_callbacks;
6332 	macp->m_min_sdu = 0;
6333 	nxgep->mac.default_mtu = nxgep->mac.maxframesize -
6334 	    NXGE_EHEADER_VLAN_CRC;
6335 	macp->m_max_sdu = nxgep->mac.default_mtu;
6336 	macp->m_margin = VLAN_TAGSZ;
6337 	macp->m_priv_props = nxge_priv_props;
6338 	macp->m_priv_prop_count = NXGE_MAX_PRIV_PROPS;
6339 	macp->m_v12n = MAC_VIRT_HIO | MAC_VIRT_LEVEL1 | MAC_VIRT_SERIALIZE;
6340 
6341 	NXGE_DEBUG_MSG((nxgep, MAC_CTL,
6342 	    "==> nxge_mac_register: instance %d "
6343 	    "max_sdu %d margin %d maxframe %d (header %d)",
6344 	    nxgep->instance,
6345 	    macp->m_max_sdu, macp->m_margin,
6346 	    nxgep->mac.maxframesize,
6347 	    NXGE_EHEADER_VLAN_CRC));
6348 
6349 	status = mac_register(macp, &nxgep->mach);
6350 	mac_free(macp);
6351 
6352 	if (status != 0) {
6353 		cmn_err(CE_WARN,
6354 		    "!nxge_mac_register failed (status %d instance %d)",
6355 		    status, nxgep->instance);
6356 		return (NXGE_ERROR);
6357 	}
6358 
6359 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_mac_register success "
6360 	    "(instance %d)", nxgep->instance));
6361 
6362 	return (NXGE_OK);
6363 }
6364 
6365 void
6366 nxge_err_inject(p_nxge_t nxgep, queue_t *wq, mblk_t *mp)
6367 {
6368 	ssize_t		size;
6369 	mblk_t		*nmp;
6370 	uint8_t		blk_id;
6371 	uint8_t		chan;
6372 	uint32_t	err_id;
6373 	err_inject_t	*eip;
6374 
6375 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "==> nxge_err_inject"));
6376 
6377 	size = 1024;
6378 	nmp = mp->b_cont;
6379 	eip = (err_inject_t *)nmp->b_rptr;
6380 	blk_id = eip->blk_id;
6381 	err_id = eip->err_id;
6382 	chan = eip->chan;
6383 	cmn_err(CE_NOTE, "!blk_id = 0x%x\n", blk_id);
6384 	cmn_err(CE_NOTE, "!err_id = 0x%x\n", err_id);
6385 	cmn_err(CE_NOTE, "!chan = 0x%x\n", chan);
6386 	switch (blk_id) {
6387 	case MAC_BLK_ID:
6388 		break;
6389 	case TXMAC_BLK_ID:
6390 		break;
6391 	case RXMAC_BLK_ID:
6392 		break;
6393 	case MIF_BLK_ID:
6394 		break;
6395 	case IPP_BLK_ID:
6396 		nxge_ipp_inject_err(nxgep, err_id);
6397 		break;
6398 	case TXC_BLK_ID:
6399 		nxge_txc_inject_err(nxgep, err_id);
6400 		break;
6401 	case TXDMA_BLK_ID:
6402 		nxge_txdma_inject_err(nxgep, err_id, chan);
6403 		break;
6404 	case RXDMA_BLK_ID:
6405 		nxge_rxdma_inject_err(nxgep, err_id, chan);
6406 		break;
6407 	case ZCP_BLK_ID:
6408 		nxge_zcp_inject_err(nxgep, err_id);
6409 		break;
6410 	case ESPC_BLK_ID:
6411 		break;
6412 	case FFLP_BLK_ID:
6413 		break;
6414 	case PHY_BLK_ID:
6415 		break;
6416 	case ETHER_SERDES_BLK_ID:
6417 		break;
6418 	case PCIE_SERDES_BLK_ID:
6419 		break;
6420 	case VIR_BLK_ID:
6421 		break;
6422 	}
6423 
6424 	nmp->b_wptr = nmp->b_rptr + size;
6425 	NXGE_DEBUG_MSG((nxgep, STR_CTL, "<== nxge_err_inject"));
6426 
6427 	miocack(wq, mp, (int)size, 0);
6428 }
6429 
6430 static int
6431 nxge_init_common_dev(p_nxge_t nxgep)
6432 {
6433 	p_nxge_hw_list_t	hw_p;
6434 	dev_info_t 		*p_dip;
6435 
6436 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_init_common_device"));
6437 
6438 	p_dip = nxgep->p_dip;
6439 	MUTEX_ENTER(&nxge_common_lock);
6440 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6441 	    "==> nxge_init_common_dev:func # %d",
6442 	    nxgep->function_num));
6443 	/*
6444 	 * Loop through existing per neptune hardware list.
6445 	 */
6446 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6447 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6448 		    "==> nxge_init_common_device:func # %d "
6449 		    "hw_p $%p parent dip $%p",
6450 		    nxgep->function_num,
6451 		    hw_p,
6452 		    p_dip));
6453 		if (hw_p->parent_devp == p_dip) {
6454 			nxgep->nxge_hw_p = hw_p;
6455 			hw_p->ndevs++;
6456 			hw_p->nxge_p[nxgep->function_num] = nxgep;
6457 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6458 			    "==> nxge_init_common_device:func # %d "
6459 			    "hw_p $%p parent dip $%p "
6460 			    "ndevs %d (found)",
6461 			    nxgep->function_num,
6462 			    hw_p,
6463 			    p_dip,
6464 			    hw_p->ndevs));
6465 			break;
6466 		}
6467 	}
6468 
6469 	if (hw_p == NULL) {
6470 
6471 		char **prop_val;
6472 		uint_t prop_len;
6473 		int i;
6474 
6475 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6476 		    "==> nxge_init_common_device:func # %d "
6477 		    "parent dip $%p (new)",
6478 		    nxgep->function_num,
6479 		    p_dip));
6480 		hw_p = kmem_zalloc(sizeof (nxge_hw_list_t), KM_SLEEP);
6481 		hw_p->parent_devp = p_dip;
6482 		hw_p->magic = NXGE_NEPTUNE_MAGIC;
6483 		nxgep->nxge_hw_p = hw_p;
6484 		hw_p->ndevs++;
6485 		hw_p->nxge_p[nxgep->function_num] = nxgep;
6486 		hw_p->next = nxge_hw_list;
6487 		if (nxgep->niu_type == N2_NIU) {
6488 			hw_p->niu_type = N2_NIU;
6489 			hw_p->platform_type = P_NEPTUNE_NIU;
6490 		} else {
6491 			hw_p->niu_type = NIU_TYPE_NONE;
6492 			hw_p->platform_type = P_NEPTUNE_NONE;
6493 		}
6494 
6495 		MUTEX_INIT(&hw_p->nxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
6496 		MUTEX_INIT(&hw_p->nxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
6497 		MUTEX_INIT(&hw_p->nxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
6498 		MUTEX_INIT(&hw_p->nxge_mdio_lock, NULL, MUTEX_DRIVER, NULL);
6499 
6500 		nxge_hw_list = hw_p;
6501 
6502 		if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, nxgep->dip, 0,
6503 		    "compatible", &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
6504 			for (i = 0; i < prop_len; i++) {
6505 				if ((strcmp((caddr_t)prop_val[i],
6506 				    NXGE_ROCK_COMPATIBLE) == 0)) {
6507 					hw_p->platform_type = P_NEPTUNE_ROCK;
6508 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6509 					    "ROCK hw_p->platform_type %d",
6510 					    hw_p->platform_type));
6511 					break;
6512 				}
6513 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6514 				    "nxge_init_common_dev: read compatible"
6515 				    " property[%d] val[%s]",
6516 				    i, (caddr_t)prop_val[i]));
6517 			}
6518 		}
6519 
6520 		ddi_prop_free(prop_val);
6521 
6522 		(void) nxge_scan_ports_phy(nxgep, nxge_hw_list);
6523 	}
6524 
6525 	MUTEX_EXIT(&nxge_common_lock);
6526 
6527 	nxgep->platform_type = hw_p->platform_type;
6528 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "nxgep->platform_type %d",
6529 	    nxgep->platform_type));
6530 	if (nxgep->niu_type != N2_NIU) {
6531 		nxgep->niu_type = hw_p->niu_type;
6532 	}
6533 
6534 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6535 	    "==> nxge_init_common_device (nxge_hw_list) $%p",
6536 	    nxge_hw_list));
6537 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<== nxge_init_common_device"));
6538 
6539 	return (NXGE_OK);
6540 }
6541 
6542 static void
6543 nxge_uninit_common_dev(p_nxge_t nxgep)
6544 {
6545 	p_nxge_hw_list_t	hw_p, h_hw_p;
6546 	p_nxge_dma_pt_cfg_t	p_dma_cfgp;
6547 	p_nxge_hw_pt_cfg_t	p_cfgp;
6548 	dev_info_t 		*p_dip;
6549 
6550 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==> nxge_uninit_common_device"));
6551 	if (nxgep->nxge_hw_p == NULL) {
6552 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6553 		    "<== nxge_uninit_common_device (no common)"));
6554 		return;
6555 	}
6556 
6557 	MUTEX_ENTER(&nxge_common_lock);
6558 	h_hw_p = nxge_hw_list;
6559 	for (hw_p = nxge_hw_list; hw_p; hw_p = hw_p->next) {
6560 		p_dip = hw_p->parent_devp;
6561 		if (nxgep->nxge_hw_p == hw_p &&
6562 		    p_dip == nxgep->p_dip &&
6563 		    nxgep->nxge_hw_p->magic == NXGE_NEPTUNE_MAGIC &&
6564 		    hw_p->magic == NXGE_NEPTUNE_MAGIC) {
6565 
6566 			NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6567 			    "==> nxge_uninit_common_device:func # %d "
6568 			    "hw_p $%p parent dip $%p "
6569 			    "ndevs %d (found)",
6570 			    nxgep->function_num,
6571 			    hw_p,
6572 			    p_dip,
6573 			    hw_p->ndevs));
6574 
6575 			/*
6576 			 * Release the RDC table, a shared resoruce
6577 			 * of the nxge hardware.  The RDC table was
6578 			 * assigned to this instance of nxge in
6579 			 * nxge_use_cfg_dma_config().
6580 			 */
6581 			if (!isLDOMguest(nxgep)) {
6582 				p_dma_cfgp =
6583 				    (p_nxge_dma_pt_cfg_t)&nxgep->pt_config;
6584 				p_cfgp =
6585 				    (p_nxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
6586 				(void) nxge_fzc_rdc_tbl_unbind(nxgep,
6587 				    p_cfgp->def_mac_rxdma_grpid);
6588 
6589 				/* Cleanup any outstanding groups.  */
6590 				nxge_grp_cleanup(nxgep);
6591 			}
6592 
6593 			if (hw_p->ndevs) {
6594 				hw_p->ndevs--;
6595 			}
6596 			hw_p->nxge_p[nxgep->function_num] = NULL;
6597 			if (!hw_p->ndevs) {
6598 				MUTEX_DESTROY(&hw_p->nxge_vlan_lock);
6599 				MUTEX_DESTROY(&hw_p->nxge_tcam_lock);
6600 				MUTEX_DESTROY(&hw_p->nxge_cfg_lock);
6601 				MUTEX_DESTROY(&hw_p->nxge_mdio_lock);
6602 				NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6603 				    "==> nxge_uninit_common_device: "
6604 				    "func # %d "
6605 				    "hw_p $%p parent dip $%p "
6606 				    "ndevs %d (last)",
6607 				    nxgep->function_num,
6608 				    hw_p,
6609 				    p_dip,
6610 				    hw_p->ndevs));
6611 
6612 				nxge_hio_uninit(nxgep);
6613 
6614 				if (hw_p == nxge_hw_list) {
6615 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6616 					    "==> nxge_uninit_common_device:"
6617 					    "remove head func # %d "
6618 					    "hw_p $%p parent dip $%p "
6619 					    "ndevs %d (head)",
6620 					    nxgep->function_num,
6621 					    hw_p,
6622 					    p_dip,
6623 					    hw_p->ndevs));
6624 					nxge_hw_list = hw_p->next;
6625 				} else {
6626 					NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6627 					    "==> nxge_uninit_common_device:"
6628 					    "remove middle func # %d "
6629 					    "hw_p $%p parent dip $%p "
6630 					    "ndevs %d (middle)",
6631 					    nxgep->function_num,
6632 					    hw_p,
6633 					    p_dip,
6634 					    hw_p->ndevs));
6635 					h_hw_p->next = hw_p->next;
6636 				}
6637 
6638 				nxgep->nxge_hw_p = NULL;
6639 				KMEM_FREE(hw_p, sizeof (nxge_hw_list_t));
6640 			}
6641 			break;
6642 		} else {
6643 			h_hw_p = hw_p;
6644 		}
6645 	}
6646 
6647 	MUTEX_EXIT(&nxge_common_lock);
6648 	NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6649 	    "==> nxge_uninit_common_device (nxge_hw_list) $%p",
6650 	    nxge_hw_list));
6651 
6652 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<= nxge_uninit_common_device"));
6653 }
6654 
6655 /*
6656  * Determines the number of ports from the niu_type or the platform type.
6657  * Returns the number of ports, or returns zero on failure.
6658  */
6659 
6660 int
6661 nxge_get_nports(p_nxge_t nxgep)
6662 {
6663 	int	nports = 0;
6664 
6665 	switch (nxgep->niu_type) {
6666 	case N2_NIU:
6667 	case NEPTUNE_2_10GF:
6668 		nports = 2;
6669 		break;
6670 	case NEPTUNE_4_1GC:
6671 	case NEPTUNE_2_10GF_2_1GC:
6672 	case NEPTUNE_1_10GF_3_1GC:
6673 	case NEPTUNE_1_1GC_1_10GF_2_1GC:
6674 	case NEPTUNE_2_10GF_2_1GRF:
6675 		nports = 4;
6676 		break;
6677 	default:
6678 		switch (nxgep->platform_type) {
6679 		case P_NEPTUNE_NIU:
6680 		case P_NEPTUNE_ATLAS_2PORT:
6681 			nports = 2;
6682 			break;
6683 		case P_NEPTUNE_ATLAS_4PORT:
6684 		case P_NEPTUNE_MARAMBA_P0:
6685 		case P_NEPTUNE_MARAMBA_P1:
6686 		case P_NEPTUNE_ROCK:
6687 		case P_NEPTUNE_ALONSO:
6688 			nports = 4;
6689 			break;
6690 		default:
6691 			break;
6692 		}
6693 		break;
6694 	}
6695 
6696 	return (nports);
6697 }
6698 
6699 /*
6700  * The following two functions are to support
6701  * PSARC/2007/453 MSI-X interrupt limit override.
6702  */
6703 static int
6704 nxge_create_msi_property(p_nxge_t nxgep)
6705 {
6706 	int	nmsi;
6707 	extern	int ncpus;
6708 
6709 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "==>nxge_create_msi_property"));
6710 
6711 	switch (nxgep->mac.portmode) {
6712 	case PORT_10G_COPPER:
6713 	case PORT_10G_FIBER:
6714 	case PORT_10G_TN1010:
6715 		(void) ddi_prop_create(DDI_DEV_T_NONE, nxgep->dip,
6716 		    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
6717 		/*
6718 		 * The maximum MSI-X requested will be 8.
6719 		 * If the # of CPUs is less than 8, we will reqeust
6720 		 * # MSI-X based on the # of CPUs.
6721 		 */
6722 		if (ncpus >= NXGE_MSIX_REQUEST_10G) {
6723 			nmsi = NXGE_MSIX_REQUEST_10G;
6724 		} else {
6725 			nmsi = ncpus;
6726 		}
6727 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6728 		    "==>nxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
6729 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6730 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6731 		break;
6732 
6733 	default:
6734 		nmsi = NXGE_MSIX_REQUEST_1G;
6735 		NXGE_DEBUG_MSG((nxgep, MOD_CTL,
6736 		    "==>nxge_create_msi_property(1G): exists 0x%x (nmsi %d)",
6737 		    ddi_prop_exists(DDI_DEV_T_NONE, nxgep->dip,
6738 		    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
6739 		break;
6740 	}
6741 
6742 	NXGE_DEBUG_MSG((nxgep, MOD_CTL, "<==nxge_create_msi_property"));
6743 	return (nmsi);
6744 }
6745 
6746 /* ARGSUSED */
6747 static int
6748 nxge_get_def_val(nxge_t *nxgep, mac_prop_id_t pr_num, uint_t pr_valsize,
6749     void *pr_val)
6750 {
6751 	int err = 0;
6752 	link_flowctrl_t fl;
6753 
6754 	switch (pr_num) {
6755 	case MAC_PROP_AUTONEG:
6756 		*(uint8_t *)pr_val = 1;
6757 		break;
6758 	case MAC_PROP_FLOWCTRL:
6759 		if (pr_valsize < sizeof (link_flowctrl_t))
6760 			return (EINVAL);
6761 		fl = LINK_FLOWCTRL_RX;
6762 		bcopy(&fl, pr_val, sizeof (fl));
6763 		break;
6764 	case MAC_PROP_ADV_1000FDX_CAP:
6765 	case MAC_PROP_EN_1000FDX_CAP:
6766 		*(uint8_t *)pr_val = 1;
6767 		break;
6768 	case MAC_PROP_ADV_100FDX_CAP:
6769 	case MAC_PROP_EN_100FDX_CAP:
6770 		*(uint8_t *)pr_val = 1;
6771 		break;
6772 	default:
6773 		err = ENOTSUP;
6774 		break;
6775 	}
6776 	return (err);
6777 }
6778 
6779 
6780 /*
6781  * The following is a software around for the Neptune hardware's
6782  * interrupt bugs; The Neptune hardware may generate spurious interrupts when
6783  * an interrupr handler is removed.
6784  */
6785 #define	NXGE_PCI_PORT_LOGIC_OFFSET	0x98
6786 #define	NXGE_PIM_RESET			(1ULL << 29)
6787 #define	NXGE_GLU_RESET			(1ULL << 30)
6788 #define	NXGE_NIU_RESET			(1ULL << 31)
6789 #define	NXGE_PCI_RESET_ALL		(NXGE_PIM_RESET |	\
6790 					NXGE_GLU_RESET |	\
6791 					NXGE_NIU_RESET)
6792 
6793 #define	NXGE_WAIT_QUITE_TIME		200000
6794 #define	NXGE_WAIT_QUITE_RETRY		40
6795 #define	NXGE_PCI_RESET_WAIT		1000000 /* one second */
6796 
6797 static void
6798 nxge_niu_peu_reset(p_nxge_t nxgep)
6799 {
6800 	uint32_t	rvalue;
6801 	p_nxge_hw_list_t hw_p;
6802 	p_nxge_t	fnxgep;
6803 	int		i, j;
6804 
6805 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "==> nxge_niu_peu_reset"));
6806 	if ((hw_p = nxgep->nxge_hw_p) == NULL) {
6807 		NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6808 		    "==> nxge_niu_peu_reset: NULL hardware pointer"));
6809 		return;
6810 	}
6811 
6812 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6813 	    "==> nxge_niu_peu_reset: flags 0x%x link timer id %d timer id %d",
6814 	    hw_p->flags, nxgep->nxge_link_poll_timerid,
6815 	    nxgep->nxge_timerid));
6816 
6817 	MUTEX_ENTER(&hw_p->nxge_cfg_lock);
6818 	/*
6819 	 * Make sure other instances from the same hardware
6820 	 * stop sending PIO and in quiescent state.
6821 	 */
6822 	for (i = 0; i < NXGE_MAX_PORTS; i++) {
6823 		fnxgep = hw_p->nxge_p[i];
6824 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6825 		    "==> nxge_niu_peu_reset: checking entry %d "
6826 		    "nxgep $%p", i, fnxgep));
6827 #ifdef	NXGE_DEBUG
6828 		if (fnxgep) {
6829 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6830 			    "==> nxge_niu_peu_reset: entry %d (function %d) "
6831 			    "link timer id %d hw timer id %d",
6832 			    i, fnxgep->function_num,
6833 			    fnxgep->nxge_link_poll_timerid,
6834 			    fnxgep->nxge_timerid));
6835 		}
6836 #endif
6837 		if (fnxgep && fnxgep != nxgep &&
6838 		    (fnxgep->nxge_timerid || fnxgep->nxge_link_poll_timerid)) {
6839 			NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6840 			    "==> nxge_niu_peu_reset: checking $%p "
6841 			    "(function %d) timer ids",
6842 			    fnxgep, fnxgep->function_num));
6843 			for (j = 0; j < NXGE_WAIT_QUITE_RETRY; j++) {
6844 				NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6845 				    "==> nxge_niu_peu_reset: waiting"));
6846 				NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6847 				if (!fnxgep->nxge_timerid &&
6848 				    !fnxgep->nxge_link_poll_timerid) {
6849 					break;
6850 				}
6851 			}
6852 			NXGE_DELAY(NXGE_WAIT_QUITE_TIME);
6853 			if (fnxgep->nxge_timerid ||
6854 			    fnxgep->nxge_link_poll_timerid) {
6855 				MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6856 				NXGE_ERROR_MSG((nxgep, NXGE_ERR_CTL,
6857 				    "<== nxge_niu_peu_reset: cannot reset "
6858 				    "hardware (devices are still in use)"));
6859 				return;
6860 			}
6861 		}
6862 	}
6863 
6864 	if ((hw_p->flags & COMMON_RESET_NIU_PCI) != COMMON_RESET_NIU_PCI) {
6865 		hw_p->flags |= COMMON_RESET_NIU_PCI;
6866 		rvalue = pci_config_get32(nxgep->dev_regs->nxge_pciregh,
6867 		    NXGE_PCI_PORT_LOGIC_OFFSET);
6868 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6869 		    "nxge_niu_peu_reset: read offset 0x%x (%d) "
6870 		    "(data 0x%x)",
6871 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6872 		    NXGE_PCI_PORT_LOGIC_OFFSET,
6873 		    rvalue));
6874 
6875 		rvalue |= NXGE_PCI_RESET_ALL;
6876 		pci_config_put32(nxgep->dev_regs->nxge_pciregh,
6877 		    NXGE_PCI_PORT_LOGIC_OFFSET, rvalue);
6878 		NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL,
6879 		    "nxge_niu_peu_reset: RESETTING NIU: write NIU reset 0x%x",
6880 		    rvalue));
6881 
6882 		NXGE_DELAY(NXGE_PCI_RESET_WAIT);
6883 	}
6884 
6885 	MUTEX_EXIT(&hw_p->nxge_cfg_lock);
6886 	NXGE_DEBUG_MSG((nxgep, NXGE_ERR_CTL, "<== nxge_niu_peu_reset"));
6887 }
6888 
6889 static void
6890 nxge_set_pci_replay_timeout(p_nxge_t nxgep)
6891 {
6892 	p_dev_regs_t	dev_regs;
6893 	uint32_t	value;
6894 
6895 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "==> nxge_set_pci_replay_timeout"));
6896 
6897 	if (!nxge_set_replay_timer) {
6898 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6899 		    "==> nxge_set_pci_replay_timeout: will not change "
6900 		    "the timeout"));
6901 		return;
6902 	}
6903 
6904 	dev_regs = nxgep->dev_regs;
6905 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6906 	    "==> nxge_set_pci_replay_timeout: dev_regs 0x%p pcireg 0x%p",
6907 	    dev_regs, dev_regs->nxge_pciregh));
6908 
6909 	if (dev_regs == NULL || (dev_regs->nxge_pciregh == NULL)) {
6910 		NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6911 		    "==> nxge_set_pci_replay_timeout: NULL dev_regs $%p or "
6912 		    "no PCI handle",
6913 		    dev_regs));
6914 		return;
6915 	}
6916 	value = (pci_config_get32(dev_regs->nxge_pciregh,
6917 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET) |
6918 	    (nxge_replay_timeout << PCI_REPLAY_TIMEOUT_SHIFT));
6919 
6920 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6921 	    "nxge_set_pci_replay_timeout: replay timeout value before set 0x%x "
6922 	    "(timeout value to set 0x%x at offset 0x%x) value 0x%x",
6923 	    pci_config_get32(dev_regs->nxge_pciregh,
6924 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET), nxge_replay_timeout,
6925 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET, value));
6926 
6927 	pci_config_put32(dev_regs->nxge_pciregh, PCI_REPLAY_TIMEOUT_CFG_OFFSET,
6928 	    value);
6929 
6930 	NXGE_DEBUG_MSG((nxgep, DDI_CTL,
6931 	    "nxge_set_pci_replay_timeout: replay timeout value after set 0x%x",
6932 	    pci_config_get32(dev_regs->nxge_pciregh,
6933 	    PCI_REPLAY_TIMEOUT_CFG_OFFSET)));
6934 
6935 	NXGE_DEBUG_MSG((nxgep, DDI_CTL, "<== nxge_set_pci_replay_timeout"));
6936 }
6937 
6938 /*
6939  * quiesce(9E) entry point.
6940  *
6941  * This function is called when the system is single-threaded at high
6942  * PIL with preemption disabled. Therefore, this function must not be
6943  * blocked.
6944  *
6945  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
6946  * DDI_FAILURE indicates an error condition and should almost never happen.
6947  */
6948 static int
6949 nxge_quiesce(dev_info_t *dip)
6950 {
6951 	int instance = ddi_get_instance(dip);
6952 	p_nxge_t nxgep = (p_nxge_t)ddi_get_soft_state(nxge_list, instance);
6953 
6954 	if (nxgep == NULL)
6955 		return (DDI_FAILURE);
6956 
6957 	/* Turn off debugging */
6958 	nxge_debug_level = NO_DEBUG;
6959 	nxgep->nxge_debug_level = NO_DEBUG;
6960 	npi_debug_level = NO_DEBUG;
6961 
6962 	/*
6963 	 * Stop link monitor only when linkchkmod is interrupt based
6964 	 */
6965 	if (nxgep->mac.linkchkmode == LINKCHK_INTR) {
6966 		(void) nxge_link_monitor(nxgep, LINK_MONITOR_STOP);
6967 	}
6968 
6969 	(void) nxge_intr_hw_disable(nxgep);
6970 
6971 	/*
6972 	 * Reset the receive MAC side.
6973 	 */
6974 	(void) nxge_rx_mac_disable(nxgep);
6975 
6976 	/* Disable and soft reset the IPP */
6977 	if (!isLDOMguest(nxgep))
6978 		(void) nxge_ipp_disable(nxgep);
6979 
6980 	/*
6981 	 * Reset the transmit/receive DMA side.
6982 	 */
6983 	(void) nxge_txdma_hw_mode(nxgep, NXGE_DMA_STOP);
6984 	(void) nxge_rxdma_hw_mode(nxgep, NXGE_DMA_STOP);
6985 
6986 	/*
6987 	 * Reset the transmit MAC side.
6988 	 */
6989 	(void) nxge_tx_mac_disable(nxgep);
6990 
6991 	return (DDI_SUCCESS);
6992 }
6993