xref: /titanic_44/usr/src/uts/common/io/hxge/hxge_main.c (revision a31148363f598def767ac48c5d82e1572e44b935)
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 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * SunOs MT STREAMS Hydra 10Gb Ethernet Device Driver.
28  */
29 #include <hxge_impl.h>
30 #include <hxge_pfc.h>
31 
32 /*
33  * PSARC/2007/453 MSI-X interrupt limit override
34  * (This PSARC case is limited to MSI-X vectors
35  *  and SPARC platforms only).
36  */
37 uint32_t hxge_msi_enable = 2;
38 
39 /*
40  * Globals: tunable parameters (/etc/system or adb)
41  *
42  */
43 uint32_t hxge_rbr_size = HXGE_RBR_RBB_DEFAULT;
44 uint32_t hxge_rbr_spare_size = 0;
45 uint32_t hxge_rcr_size = HXGE_RCR_DEFAULT;
46 uint32_t hxge_tx_ring_size = HXGE_TX_RING_DEFAULT;
47 uint32_t hxge_bcopy_thresh = TX_BCOPY_MAX;
48 uint32_t hxge_dvma_thresh = TX_FASTDVMA_MIN;
49 uint32_t hxge_dma_stream_thresh = TX_STREAM_MIN;
50 uint32_t hxge_jumbo_frame_size = MAX_FRAME_SIZE;
51 
52 static hxge_os_mutex_t hxgedebuglock;
53 static int hxge_debug_init = 0;
54 
55 /*
56  * Debugging flags:
57  *		hxge_no_tx_lb : transmit load balancing
58  *		hxge_tx_lb_policy: 0 - TCP/UDP port (default)
59  *				   1 - From the Stack
60  *				   2 - Destination IP Address
61  */
62 uint32_t hxge_no_tx_lb = 0;
63 uint32_t hxge_tx_lb_policy = HXGE_TX_LB_TCPUDP;
64 
65 /*
66  * Tunables to manage the receive buffer blocks.
67  *
68  * hxge_rx_threshold_hi: copy all buffers.
69  * hxge_rx_bcopy_size_type: receive buffer block size type.
70  * hxge_rx_threshold_lo: copy only up to tunable block size type.
71  */
72 #if defined(__sparc)
73 hxge_rxbuf_threshold_t hxge_rx_threshold_hi = HXGE_RX_COPY_6;
74 hxge_rxbuf_threshold_t hxge_rx_threshold_lo = HXGE_RX_COPY_4;
75 #else
76 hxge_rxbuf_threshold_t hxge_rx_threshold_hi = HXGE_RX_COPY_NONE;
77 hxge_rxbuf_threshold_t hxge_rx_threshold_lo = HXGE_RX_COPY_NONE;
78 #endif
79 hxge_rxbuf_type_t hxge_rx_buf_size_type = RCR_PKTBUFSZ_0;
80 
81 rtrace_t hpi_rtracebuf;
82 
83 /*
84  * Function Prototypes
85  */
86 static int hxge_attach(dev_info_t *, ddi_attach_cmd_t);
87 static int hxge_detach(dev_info_t *, ddi_detach_cmd_t);
88 static void hxge_unattach(p_hxge_t);
89 
90 static hxge_status_t hxge_setup_system_dma_pages(p_hxge_t);
91 
92 static hxge_status_t hxge_setup_mutexes(p_hxge_t);
93 static void hxge_destroy_mutexes(p_hxge_t);
94 
95 static hxge_status_t hxge_map_regs(p_hxge_t hxgep);
96 static void hxge_unmap_regs(p_hxge_t hxgep);
97 
98 static hxge_status_t hxge_add_intrs(p_hxge_t hxgep);
99 static void hxge_remove_intrs(p_hxge_t hxgep);
100 static hxge_status_t hxge_add_intrs_adv(p_hxge_t hxgep);
101 static hxge_status_t hxge_add_intrs_adv_type(p_hxge_t, uint32_t);
102 static hxge_status_t hxge_add_intrs_adv_type_fix(p_hxge_t, uint32_t);
103 static void hxge_intrs_enable(p_hxge_t hxgep);
104 static void hxge_intrs_disable(p_hxge_t hxgep);
105 static void hxge_suspend(p_hxge_t);
106 static hxge_status_t hxge_resume(p_hxge_t);
107 static hxge_status_t hxge_setup_dev(p_hxge_t);
108 static void hxge_destroy_dev(p_hxge_t);
109 static hxge_status_t hxge_alloc_mem_pool(p_hxge_t);
110 static void hxge_free_mem_pool(p_hxge_t);
111 static hxge_status_t hxge_alloc_rx_mem_pool(p_hxge_t);
112 static void hxge_free_rx_mem_pool(p_hxge_t);
113 static hxge_status_t hxge_alloc_tx_mem_pool(p_hxge_t);
114 static void hxge_free_tx_mem_pool(p_hxge_t);
115 static hxge_status_t hxge_dma_mem_alloc(p_hxge_t, dma_method_t,
116     struct ddi_dma_attr *, size_t, ddi_device_acc_attr_t *, uint_t,
117     p_hxge_dma_common_t);
118 static void hxge_dma_mem_free(p_hxge_dma_common_t);
119 static hxge_status_t hxge_alloc_rx_buf_dma(p_hxge_t, uint16_t,
120     p_hxge_dma_common_t *, size_t, size_t, uint32_t *);
121 static void hxge_free_rx_buf_dma(p_hxge_t, p_hxge_dma_common_t, uint32_t);
122 static hxge_status_t hxge_alloc_rx_cntl_dma(p_hxge_t, uint16_t,
123     p_hxge_dma_common_t *, struct ddi_dma_attr *, size_t);
124 static void hxge_free_rx_cntl_dma(p_hxge_t, p_hxge_dma_common_t);
125 static hxge_status_t hxge_alloc_tx_buf_dma(p_hxge_t, uint16_t,
126     p_hxge_dma_common_t *, size_t, size_t, uint32_t *);
127 static void hxge_free_tx_buf_dma(p_hxge_t, p_hxge_dma_common_t, uint32_t);
128 static hxge_status_t hxge_alloc_tx_cntl_dma(p_hxge_t, uint16_t,
129     p_hxge_dma_common_t *, size_t);
130 static void hxge_free_tx_cntl_dma(p_hxge_t, p_hxge_dma_common_t);
131 static int hxge_init_common_dev(p_hxge_t);
132 static void hxge_uninit_common_dev(p_hxge_t);
133 
134 /*
135  * The next declarations are for the GLDv3 interface.
136  */
137 static int hxge_m_start(void *);
138 static void hxge_m_stop(void *);
139 static int hxge_m_multicst(void *, boolean_t, const uint8_t *);
140 static int hxge_m_promisc(void *, boolean_t);
141 static void hxge_m_ioctl(void *, queue_t *, mblk_t *);
142 static hxge_status_t hxge_mac_register(p_hxge_t hxgep);
143 
144 static boolean_t hxge_m_getcapab(void *, mac_capab_t, void *);
145 static boolean_t hxge_param_locked(mac_prop_id_t pr_num);
146 static int hxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
147     uint_t pr_valsize, const void *pr_val);
148 static int hxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
149     uint_t pr_valsize, void *pr_val);
150 static void hxge_m_propinfo(void *barg, const char *pr_name,
151     mac_prop_id_t pr_num, mac_prop_info_handle_t mph);
152 static int hxge_set_priv_prop(p_hxge_t hxgep, const char *pr_name,
153     uint_t pr_valsize, const void *pr_val);
154 static int hxge_get_priv_prop(p_hxge_t hxgep, const char *pr_name,
155     uint_t pr_valsize, void *pr_val);
156 static void hxge_link_poll(void *arg);
157 static void hxge_link_update(p_hxge_t hxge, link_state_t state);
158 static void hxge_msix_init(p_hxge_t hxgep);
159 
160 char *hxge_priv_props[] = {
161 	"_rxdma_intr_time",
162 	"_rxdma_intr_pkts",
163 	"_class_opt_ipv4_tcp",
164 	"_class_opt_ipv4_udp",
165 	"_class_opt_ipv4_ah",
166 	"_class_opt_ipv4_sctp",
167 	"_class_opt_ipv6_tcp",
168 	"_class_opt_ipv6_udp",
169 	"_class_opt_ipv6_ah",
170 	"_class_opt_ipv6_sctp",
171 	NULL
172 };
173 
174 #define	HXGE_MAX_PRIV_PROPS	\
175 	(sizeof (hxge_priv_props)/sizeof (mac_priv_prop_t))
176 
177 #define	HXGE_MAGIC	0x4E584745UL
178 #define	MAX_DUMP_SZ 256
179 
180 #define	HXGE_M_CALLBACK_FLAGS	\
181 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP | MC_PROPINFO)
182 
183 extern hxge_status_t hxge_pfc_set_default_mac_addr(p_hxge_t hxgep);
184 
185 static mac_callbacks_t hxge_m_callbacks = {
186 	HXGE_M_CALLBACK_FLAGS,
187 	hxge_m_stat,
188 	hxge_m_start,
189 	hxge_m_stop,
190 	hxge_m_promisc,
191 	hxge_m_multicst,
192 	NULL,
193 	NULL,
194 	NULL,
195 	hxge_m_ioctl,
196 	hxge_m_getcapab,
197 	NULL,
198 	NULL,
199 	hxge_m_setprop,
200 	hxge_m_getprop,
201 	hxge_m_propinfo
202 };
203 
204 /* PSARC/2007/453 MSI-X interrupt limit override. */
205 #define	HXGE_MSIX_REQUEST_10G	8
206 static int hxge_create_msi_property(p_hxge_t);
207 
208 /* Enable debug messages as necessary. */
209 uint64_t hxge_debug_level = 0;
210 
211 /*
212  * This list contains the instance structures for the Hydra
213  * devices present in the system. The lock exists to guarantee
214  * mutually exclusive access to the list.
215  */
216 void *hxge_list = NULL;
217 void *hxge_hw_list = NULL;
218 hxge_os_mutex_t hxge_common_lock;
219 
220 extern uint64_t hpi_debug_level;
221 
222 extern hxge_status_t hxge_ldgv_init();
223 extern hxge_status_t hxge_ldgv_uninit();
224 extern hxge_status_t hxge_intr_ldgv_init();
225 extern void hxge_fm_init(p_hxge_t hxgep, ddi_device_acc_attr_t *reg_attr,
226     ddi_device_acc_attr_t *desc_attr, ddi_dma_attr_t *dma_attr);
227 extern void hxge_fm_fini(p_hxge_t hxgep);
228 
229 /*
230  * Count used to maintain the number of buffers being used
231  * by Hydra instances and loaned up to the upper layers.
232  */
233 uint32_t hxge_mblks_pending = 0;
234 
235 /*
236  * Device register access attributes for PIO.
237  */
238 static ddi_device_acc_attr_t hxge_dev_reg_acc_attr = {
239 	DDI_DEVICE_ATTR_V0,
240 	DDI_STRUCTURE_LE_ACC,
241 	DDI_STRICTORDER_ACC,
242 };
243 
244 /*
245  * Device descriptor access attributes for DMA.
246  */
247 static ddi_device_acc_attr_t hxge_dev_desc_dma_acc_attr = {
248 	DDI_DEVICE_ATTR_V0,
249 	DDI_STRUCTURE_LE_ACC,
250 	DDI_STRICTORDER_ACC
251 };
252 
253 /*
254  * Device buffer access attributes for DMA.
255  */
256 static ddi_device_acc_attr_t hxge_dev_buf_dma_acc_attr = {
257 	DDI_DEVICE_ATTR_V0,
258 	DDI_STRUCTURE_BE_ACC,
259 	DDI_STRICTORDER_ACC
260 };
261 
262 ddi_dma_attr_t hxge_rx_rcr_desc_dma_attr = {
263 	DMA_ATTR_V0,		/* version number. */
264 	0,			/* low address */
265 	0xffffffffffffffff,	/* high address */
266 	0xffffffffffffffff,	/* address counter max */
267 	0x80000,		/* alignment */
268 	0xfc00fc,		/* dlim_burstsizes */
269 	0x1,			/* minimum transfer size */
270 	0xffffffffffffffff,	/* maximum transfer size */
271 	0xffffffffffffffff,	/* maximum segment size */
272 	1,			/* scatter/gather list length */
273 	(unsigned int)1,	/* granularity */
274 	0			/* attribute flags */
275 };
276 
277 ddi_dma_attr_t hxge_tx_desc_dma_attr = {
278 	DMA_ATTR_V0,		/* version number. */
279 	0,			/* low address */
280 	0xffffffffffffffff,	/* high address */
281 	0xffffffffffffffff,	/* address counter max */
282 	0x100000,		/* alignment */
283 	0xfc00fc,		/* dlim_burstsizes */
284 	0x1,			/* minimum transfer size */
285 	0xffffffffffffffff,	/* maximum transfer size */
286 	0xffffffffffffffff,	/* maximum segment size */
287 	1,			/* scatter/gather list length */
288 	(unsigned int)1,	/* granularity */
289 	0			/* attribute flags */
290 };
291 
292 ddi_dma_attr_t hxge_rx_rbr_desc_dma_attr = {
293 	DMA_ATTR_V0,		/* version number. */
294 	0,			/* low address */
295 	0xffffffffffffffff,	/* high address */
296 	0xffffffffffffffff,	/* address counter max */
297 	0x40000,		/* alignment */
298 	0xfc00fc,		/* dlim_burstsizes */
299 	0x1,			/* minimum transfer size */
300 	0xffffffffffffffff,	/* maximum transfer size */
301 	0xffffffffffffffff,	/* maximum segment size */
302 	1,			/* scatter/gather list length */
303 	(unsigned int)1,	/* granularity */
304 	0			/* attribute flags */
305 };
306 
307 ddi_dma_attr_t hxge_rx_mbox_dma_attr = {
308 	DMA_ATTR_V0,		/* version number. */
309 	0,			/* low address */
310 	0xffffffffffffffff,	/* high address */
311 	0xffffffffffffffff,	/* address counter max */
312 #if defined(_BIG_ENDIAN)
313 	0x2000,			/* alignment */
314 #else
315 	0x1000,			/* alignment */
316 #endif
317 	0xfc00fc,		/* dlim_burstsizes */
318 	0x1,			/* minimum transfer size */
319 	0xffffffffffffffff,	/* maximum transfer size */
320 	0xffffffffffffffff,	/* maximum segment size */
321 	5,			/* scatter/gather list length */
322 	(unsigned int)1,	/* granularity */
323 	0			/* attribute flags */
324 };
325 
326 ddi_dma_attr_t hxge_tx_dma_attr = {
327 	DMA_ATTR_V0,		/* version number. */
328 	0,			/* low address */
329 	0xffffffffffffffff,	/* high address */
330 	0xffffffffffffffff,	/* address counter max */
331 #if defined(_BIG_ENDIAN)
332 	0x2000,			/* alignment */
333 #else
334 	0x1000,			/* alignment */
335 #endif
336 	0xfc00fc,		/* dlim_burstsizes */
337 	0x1,			/* minimum transfer size */
338 	0xffffffffffffffff,	/* maximum transfer size */
339 	0xffffffffffffffff,	/* maximum segment size */
340 	5,			/* scatter/gather list length */
341 	(unsigned int)1,	/* granularity */
342 	0			/* attribute flags */
343 };
344 
345 ddi_dma_attr_t hxge_rx_dma_attr = {
346 	DMA_ATTR_V0,		/* version number. */
347 	0,			/* low address */
348 	0xffffffffffffffff,	/* high address */
349 	0xffffffffffffffff,	/* address counter max */
350 	0x10000,		/* alignment */
351 	0xfc00fc,		/* dlim_burstsizes */
352 	0x1,			/* minimum transfer size */
353 	0xffffffffffffffff,	/* maximum transfer size */
354 	0xffffffffffffffff,	/* maximum segment size */
355 	1,			/* scatter/gather list length */
356 	(unsigned int)1,	/* granularity */
357 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
358 };
359 
360 ddi_dma_lim_t hxge_dma_limits = {
361 	(uint_t)0,		/* dlim_addr_lo */
362 	(uint_t)0xffffffff,	/* dlim_addr_hi */
363 	(uint_t)0xffffffff,	/* dlim_cntr_max */
364 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
365 	0x1,			/* dlim_minxfer */
366 	1024			/* dlim_speed */
367 };
368 
369 dma_method_t hxge_force_dma = DVMA;
370 
371 /*
372  * dma chunk sizes.
373  *
374  * Try to allocate the largest possible size
375  * so that fewer number of dma chunks would be managed
376  */
377 size_t alloc_sizes[] = {
378     0x1000, 0x2000, 0x4000, 0x8000,
379     0x10000, 0x20000, 0x40000, 0x80000,
380     0x100000, 0x200000, 0x400000, 0x800000, 0x1000000
381 };
382 
383 /*
384  * Translate "dev_t" to a pointer to the associated "dev_info_t".
385  */
386 static int
387 hxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
388 {
389 	p_hxge_t	hxgep = NULL;
390 	int		instance;
391 	int		status = DDI_SUCCESS;
392 	int		i;
393 
394 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_attach"));
395 
396 	/*
397 	 * Get the device instance since we'll need to setup or retrieve a soft
398 	 * state for this instance.
399 	 */
400 	instance = ddi_get_instance(dip);
401 
402 	switch (cmd) {
403 	case DDI_ATTACH:
404 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_ATTACH"));
405 		break;
406 
407 	case DDI_RESUME:
408 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_RESUME"));
409 		hxgep = (p_hxge_t)ddi_get_soft_state(hxge_list, instance);
410 		if (hxgep == NULL) {
411 			status = DDI_FAILURE;
412 			break;
413 		}
414 		if (hxgep->dip != dip) {
415 			status = DDI_FAILURE;
416 			break;
417 		}
418 		if (hxgep->suspended == DDI_PM_SUSPEND) {
419 			status = ddi_dev_is_needed(hxgep->dip, 0, 1);
420 		} else {
421 			(void) hxge_resume(hxgep);
422 		}
423 		goto hxge_attach_exit;
424 
425 	case DDI_PM_RESUME:
426 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_PM_RESUME"));
427 		hxgep = (p_hxge_t)ddi_get_soft_state(hxge_list, instance);
428 		if (hxgep == NULL) {
429 			status = DDI_FAILURE;
430 			break;
431 		}
432 		if (hxgep->dip != dip) {
433 			status = DDI_FAILURE;
434 			break;
435 		}
436 		(void) hxge_resume(hxgep);
437 		goto hxge_attach_exit;
438 
439 	default:
440 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing unknown"));
441 		status = DDI_FAILURE;
442 		goto hxge_attach_exit;
443 	}
444 
445 	if (ddi_soft_state_zalloc(hxge_list, instance) == DDI_FAILURE) {
446 		status = DDI_FAILURE;
447 		HXGE_ERROR_MSG((hxgep, DDI_CTL,
448 		    "ddi_soft_state_zalloc failed"));
449 		goto hxge_attach_exit;
450 	}
451 
452 	hxgep = ddi_get_soft_state(hxge_list, instance);
453 	if (hxgep == NULL) {
454 		status = HXGE_ERROR;
455 		HXGE_ERROR_MSG((hxgep, DDI_CTL,
456 		    "ddi_get_soft_state failed"));
457 		goto hxge_attach_fail2;
458 	}
459 
460 	hxgep->drv_state = 0;
461 	hxgep->dip = dip;
462 	hxgep->instance = instance;
463 	hxgep->p_dip = ddi_get_parent(dip);
464 	hxgep->hxge_debug_level = hxge_debug_level;
465 	hpi_debug_level = hxge_debug_level;
466 
467 	/*
468 	 * Initialize MMAC struture.
469 	 */
470 	(void) hxge_pfc_num_macs_get(hxgep, &hxgep->mmac.total);
471 	hxgep->mmac.available = hxgep->mmac.total;
472 	for (i = 0; i < hxgep->mmac.total; i++) {
473 		hxgep->mmac.addrs[i].set = B_FALSE;
474 		hxgep->mmac.addrs[i].primary = B_FALSE;
475 	}
476 
477 	hxge_fm_init(hxgep, &hxge_dev_reg_acc_attr, &hxge_dev_desc_dma_acc_attr,
478 	    &hxge_rx_dma_attr);
479 
480 	status = hxge_map_regs(hxgep);
481 	if (status != HXGE_OK) {
482 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "hxge_map_regs failed"));
483 		goto hxge_attach_fail3;
484 	}
485 
486 	status = hxge_init_common_dev(hxgep);
487 	if (status != HXGE_OK) {
488 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
489 		    "hxge_init_common_dev failed"));
490 		goto hxge_attach_fail4;
491 	}
492 
493 	/*
494 	 * Setup the Ndd parameters for this instance.
495 	 */
496 	hxge_init_param(hxgep);
497 
498 	/*
499 	 * Setup Register Tracing Buffer.
500 	 */
501 	hpi_rtrace_buf_init((rtrace_t *)&hpi_rtracebuf);
502 
503 	/* init stats ptr */
504 	hxge_init_statsp(hxgep);
505 
506 	status = hxge_setup_mutexes(hxgep);
507 	if (status != HXGE_OK) {
508 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "set mutex failed"));
509 		goto hxge_attach_fail;
510 	}
511 
512 	/* Scrub the MSI-X memory */
513 	hxge_msix_init(hxgep);
514 
515 	status = hxge_get_config_properties(hxgep);
516 	if (status != HXGE_OK) {
517 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "get_hw create failed"));
518 		goto hxge_attach_fail;
519 	}
520 
521 	/*
522 	 * Setup the Kstats for the driver.
523 	 */
524 	hxge_setup_kstats(hxgep);
525 	hxge_setup_param(hxgep);
526 
527 	status = hxge_setup_system_dma_pages(hxgep);
528 	if (status != HXGE_OK) {
529 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "set dma page failed"));
530 		goto hxge_attach_fail;
531 	}
532 
533 	hxge_hw_id_init(hxgep);
534 	hxge_hw_init_niu_common(hxgep);
535 
536 	status = hxge_setup_dev(hxgep);
537 	if (status != DDI_SUCCESS) {
538 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "set dev failed"));
539 		goto hxge_attach_fail;
540 	}
541 
542 	status = hxge_add_intrs(hxgep);
543 	if (status != DDI_SUCCESS) {
544 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "add_intr failed"));
545 		goto hxge_attach_fail;
546 	}
547 
548 	/*
549 	 * Enable interrupts.
550 	 */
551 	hxge_intrs_enable(hxgep);
552 
553 	if ((status = hxge_mac_register(hxgep)) != HXGE_OK) {
554 		HXGE_DEBUG_MSG((hxgep, DDI_CTL,
555 		    "unable to register to mac layer (%d)", status));
556 		goto hxge_attach_fail;
557 	}
558 	mac_link_update(hxgep->mach, LINK_STATE_UNKNOWN);
559 
560 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "registered to mac (instance %d)",
561 	    instance));
562 
563 	goto hxge_attach_exit;
564 
565 hxge_attach_fail:
566 	hxge_unattach(hxgep);
567 	goto hxge_attach_fail1;
568 
569 hxge_attach_fail5:
570 	/*
571 	 * Tear down the ndd parameters setup.
572 	 */
573 	hxge_destroy_param(hxgep);
574 
575 	/*
576 	 * Tear down the kstat setup.
577 	 */
578 	hxge_destroy_kstats(hxgep);
579 
580 hxge_attach_fail4:
581 	if (hxgep->hxge_hw_p) {
582 		hxge_uninit_common_dev(hxgep);
583 		hxgep->hxge_hw_p = NULL;
584 	}
585 hxge_attach_fail3:
586 	/*
587 	 * Unmap the register setup.
588 	 */
589 	hxge_unmap_regs(hxgep);
590 
591 	hxge_fm_fini(hxgep);
592 
593 hxge_attach_fail2:
594 	ddi_soft_state_free(hxge_list, hxgep->instance);
595 
596 hxge_attach_fail1:
597 	if (status != HXGE_OK)
598 		status = (HXGE_ERROR | HXGE_DDI_FAILED);
599 	hxgep = NULL;
600 
601 hxge_attach_exit:
602 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_attach status = 0x%08x",
603 	    status));
604 
605 	return (status);
606 }
607 
608 static int
609 hxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
610 {
611 	int		status = DDI_SUCCESS;
612 	int		instance;
613 	p_hxge_t	hxgep = NULL;
614 
615 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_detach"));
616 	instance = ddi_get_instance(dip);
617 	hxgep = ddi_get_soft_state(hxge_list, instance);
618 	if (hxgep == NULL) {
619 		status = DDI_FAILURE;
620 		goto hxge_detach_exit;
621 	}
622 
623 	switch (cmd) {
624 	case DDI_DETACH:
625 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_DETACH"));
626 		break;
627 
628 	case DDI_PM_SUSPEND:
629 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
630 		hxgep->suspended = DDI_PM_SUSPEND;
631 		hxge_suspend(hxgep);
632 		break;
633 
634 	case DDI_SUSPEND:
635 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_SUSPEND"));
636 		if (hxgep->suspended != DDI_PM_SUSPEND) {
637 			hxgep->suspended = DDI_SUSPEND;
638 			hxge_suspend(hxgep);
639 		}
640 		break;
641 
642 	default:
643 		status = DDI_FAILURE;
644 		break;
645 	}
646 
647 	if (cmd != DDI_DETACH)
648 		goto hxge_detach_exit;
649 
650 	/*
651 	 * Stop the xcvr polling.
652 	 */
653 	hxgep->suspended = cmd;
654 
655 	if (hxgep->mach && (status = mac_unregister(hxgep->mach)) != 0) {
656 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
657 		    "<== hxge_detach status = 0x%08X", status));
658 		return (DDI_FAILURE);
659 	}
660 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
661 	    "<== hxge_detach (mac_unregister) status = 0x%08X", status));
662 
663 	hxge_unattach(hxgep);
664 	hxgep = NULL;
665 
666 hxge_detach_exit:
667 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_detach status = 0x%08X",
668 	    status));
669 
670 	return (status);
671 }
672 
673 static void
674 hxge_unattach(p_hxge_t hxgep)
675 {
676 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_unattach"));
677 
678 	if (hxgep == NULL || hxgep->dev_regs == NULL) {
679 		return;
680 	}
681 
682 	if (hxgep->hxge_hw_p) {
683 		hxge_uninit_common_dev(hxgep);
684 		hxgep->hxge_hw_p = NULL;
685 	}
686 
687 	if (hxgep->hxge_timerid) {
688 		hxge_stop_timer(hxgep, hxgep->hxge_timerid);
689 		hxgep->hxge_timerid = 0;
690 	}
691 
692 	/* Stop interrupts. */
693 	hxge_intrs_disable(hxgep);
694 
695 	/* Stop any further interrupts. */
696 	hxge_remove_intrs(hxgep);
697 
698 	/* Stop the device and free resources. */
699 	hxge_destroy_dev(hxgep);
700 
701 	/* Tear down the ndd parameters setup. */
702 	hxge_destroy_param(hxgep);
703 
704 	/* Tear down the kstat setup. */
705 	hxge_destroy_kstats(hxgep);
706 
707 	/*
708 	 * Remove the list of ndd parameters which were setup during attach.
709 	 */
710 	if (hxgep->dip) {
711 		HXGE_DEBUG_MSG((hxgep, OBP_CTL,
712 		    " hxge_unattach: remove all properties"));
713 		(void) ddi_prop_remove_all(hxgep->dip);
714 	}
715 
716 	/*
717 	 * Reset RDC, TDC, PFC, and VMAC blocks from PEU to clear any
718 	 * previous state before unmapping the registers.
719 	 */
720 	HXGE_REG_WR32(hxgep->hpi_handle, BLOCK_RESET, 0x0000001E);
721 	HXGE_DELAY(1000);
722 
723 	/*
724 	 * Unmap the register setup.
725 	 */
726 	hxge_unmap_regs(hxgep);
727 
728 	hxge_fm_fini(hxgep);
729 
730 	/* Destroy all mutexes.  */
731 	hxge_destroy_mutexes(hxgep);
732 
733 	/*
734 	 * Free the soft state data structures allocated with this instance.
735 	 */
736 	ddi_soft_state_free(hxge_list, hxgep->instance);
737 
738 	HXGE_DEBUG_MSG((NULL, DDI_CTL, "<== hxge_unattach"));
739 }
740 
741 static hxge_status_t
742 hxge_map_regs(p_hxge_t hxgep)
743 {
744 	int		ddi_status = DDI_SUCCESS;
745 	p_dev_regs_t	dev_regs;
746 
747 #ifdef	HXGE_DEBUG
748 	char		*sysname;
749 #endif
750 
751 	off_t		regsize;
752 	hxge_status_t	status = HXGE_OK;
753 	int		nregs;
754 
755 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_map_regs"));
756 
757 	if (ddi_dev_nregs(hxgep->dip, &nregs) != DDI_SUCCESS)
758 		return (HXGE_ERROR);
759 
760 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "hxge_map_regs: nregs: %d", nregs));
761 
762 	hxgep->dev_regs = NULL;
763 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
764 	dev_regs->hxge_regh = NULL;
765 	dev_regs->hxge_pciregh = NULL;
766 	dev_regs->hxge_msix_regh = NULL;
767 
768 	(void) ddi_dev_regsize(hxgep->dip, 0, &regsize);
769 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
770 	    "hxge_map_regs: pci config size 0x%x", regsize));
771 
772 	ddi_status = ddi_regs_map_setup(hxgep->dip, 0,
773 	    (caddr_t *)&(dev_regs->hxge_pciregp), 0, 0,
774 	    &hxge_dev_reg_acc_attr, &dev_regs->hxge_pciregh);
775 	if (ddi_status != DDI_SUCCESS) {
776 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
777 		    "ddi_map_regs, hxge bus config regs failed"));
778 		goto hxge_map_regs_fail0;
779 	}
780 
781 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
782 	    "hxge_map_reg: PCI config addr 0x%0llx handle 0x%0llx",
783 	    dev_regs->hxge_pciregp,
784 	    dev_regs->hxge_pciregh));
785 
786 	(void) ddi_dev_regsize(hxgep->dip, 1, &regsize);
787 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
788 	    "hxge_map_regs: pio size 0x%x", regsize));
789 
790 	/* set up the device mapped register */
791 	ddi_status = ddi_regs_map_setup(hxgep->dip, 1,
792 	    (caddr_t *)&(dev_regs->hxge_regp), 0, 0,
793 	    &hxge_dev_reg_acc_attr, &dev_regs->hxge_regh);
794 
795 	if (ddi_status != DDI_SUCCESS) {
796 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
797 		    "ddi_map_regs for Hydra global reg failed"));
798 		goto hxge_map_regs_fail1;
799 	}
800 
801 	/* set up the msi/msi-x mapped register */
802 	(void) ddi_dev_regsize(hxgep->dip, 2, &regsize);
803 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
804 	    "hxge_map_regs: msix size 0x%x", regsize));
805 
806 	ddi_status = ddi_regs_map_setup(hxgep->dip, 2,
807 	    (caddr_t *)&(dev_regs->hxge_msix_regp), 0, 0,
808 	    &hxge_dev_reg_acc_attr, &dev_regs->hxge_msix_regh);
809 
810 	if (ddi_status != DDI_SUCCESS) {
811 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
812 		    "ddi_map_regs for msi reg failed"));
813 		goto hxge_map_regs_fail2;
814 	}
815 
816 	hxgep->dev_regs = dev_regs;
817 
818 	HPI_PCI_ACC_HANDLE_SET(hxgep, dev_regs->hxge_pciregh);
819 	HPI_PCI_ADD_HANDLE_SET(hxgep, (hpi_reg_ptr_t)dev_regs->hxge_pciregp);
820 	HPI_MSI_ACC_HANDLE_SET(hxgep, dev_regs->hxge_msix_regh);
821 	HPI_MSI_ADD_HANDLE_SET(hxgep, (hpi_reg_ptr_t)dev_regs->hxge_msix_regp);
822 
823 	HPI_ACC_HANDLE_SET(hxgep, dev_regs->hxge_regh);
824 	HPI_ADD_HANDLE_SET(hxgep, (hpi_reg_ptr_t)dev_regs->hxge_regp);
825 
826 	HPI_REG_ACC_HANDLE_SET(hxgep, dev_regs->hxge_regh);
827 	HPI_REG_ADD_HANDLE_SET(hxgep, (hpi_reg_ptr_t)dev_regs->hxge_regp);
828 
829 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "hxge_map_reg: hardware addr 0x%0llx "
830 	    " handle 0x%0llx", dev_regs->hxge_regp, dev_regs->hxge_regh));
831 
832 	goto hxge_map_regs_exit;
833 
834 hxge_map_regs_fail3:
835 	if (dev_regs->hxge_msix_regh) {
836 		ddi_regs_map_free(&dev_regs->hxge_msix_regh);
837 	}
838 
839 hxge_map_regs_fail2:
840 	if (dev_regs->hxge_regh) {
841 		ddi_regs_map_free(&dev_regs->hxge_regh);
842 	}
843 
844 hxge_map_regs_fail1:
845 	if (dev_regs->hxge_pciregh) {
846 		ddi_regs_map_free(&dev_regs->hxge_pciregh);
847 	}
848 
849 hxge_map_regs_fail0:
850 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "Freeing register set memory"));
851 	kmem_free(dev_regs, sizeof (dev_regs_t));
852 
853 hxge_map_regs_exit:
854 	if (ddi_status != DDI_SUCCESS)
855 		status |= (HXGE_ERROR | HXGE_DDI_FAILED);
856 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_map_regs"));
857 	return (status);
858 }
859 
860 static void
861 hxge_unmap_regs(p_hxge_t hxgep)
862 {
863 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_unmap_regs"));
864 	if (hxgep->dev_regs) {
865 		if (hxgep->dev_regs->hxge_pciregh) {
866 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
867 			    "==> hxge_unmap_regs: bus"));
868 			ddi_regs_map_free(&hxgep->dev_regs->hxge_pciregh);
869 			hxgep->dev_regs->hxge_pciregh = NULL;
870 		}
871 
872 		if (hxgep->dev_regs->hxge_regh) {
873 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
874 			    "==> hxge_unmap_regs: device registers"));
875 			ddi_regs_map_free(&hxgep->dev_regs->hxge_regh);
876 			hxgep->dev_regs->hxge_regh = NULL;
877 		}
878 
879 		if (hxgep->dev_regs->hxge_msix_regh) {
880 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
881 			    "==> hxge_unmap_regs: device interrupts"));
882 			ddi_regs_map_free(&hxgep->dev_regs->hxge_msix_regh);
883 			hxgep->dev_regs->hxge_msix_regh = NULL;
884 		}
885 		kmem_free(hxgep->dev_regs, sizeof (dev_regs_t));
886 		hxgep->dev_regs = NULL;
887 	}
888 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_unmap_regs"));
889 }
890 
891 static hxge_status_t
892 hxge_setup_mutexes(p_hxge_t hxgep)
893 {
894 	int		ddi_status = DDI_SUCCESS;
895 	hxge_status_t	status = HXGE_OK;
896 
897 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_setup_mutexes"));
898 
899 	/*
900 	 * Get the interrupt cookie so the mutexes can be Initialised.
901 	 */
902 	ddi_status = ddi_get_iblock_cookie(hxgep->dip, 0,
903 	    &hxgep->interrupt_cookie);
904 
905 	if (ddi_status != DDI_SUCCESS) {
906 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
907 		    "<== hxge_setup_mutexes: failed 0x%x", ddi_status));
908 		goto hxge_setup_mutexes_exit;
909 	}
910 
911 	/*
912 	 * Initialize mutex's for this device.
913 	 */
914 	MUTEX_INIT(hxgep->genlock, NULL,
915 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
916 	MUTEX_INIT(&hxgep->vmac_lock, NULL,
917 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
918 	MUTEX_INIT(&hxgep->ouraddr_lock, NULL,
919 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
920 	RW_INIT(&hxgep->filter_lock, NULL,
921 	    RW_DRIVER, (void *) hxgep->interrupt_cookie);
922 	MUTEX_INIT(&hxgep->pio_lock, NULL,
923 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
924 	MUTEX_INIT(&hxgep->timeout.lock, NULL,
925 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
926 
927 hxge_setup_mutexes_exit:
928 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
929 	    "<== hxge_setup_mutexes status = %x", status));
930 
931 	if (ddi_status != DDI_SUCCESS)
932 		status |= (HXGE_ERROR | HXGE_DDI_FAILED);
933 
934 	return (status);
935 }
936 
937 static void
938 hxge_destroy_mutexes(p_hxge_t hxgep)
939 {
940 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_destroy_mutexes"));
941 	RW_DESTROY(&hxgep->filter_lock);
942 	MUTEX_DESTROY(&hxgep->vmac_lock);
943 	MUTEX_DESTROY(&hxgep->ouraddr_lock);
944 	MUTEX_DESTROY(hxgep->genlock);
945 	MUTEX_DESTROY(&hxgep->pio_lock);
946 	MUTEX_DESTROY(&hxgep->timeout.lock);
947 
948 	if (hxge_debug_init == 1) {
949 		MUTEX_DESTROY(&hxgedebuglock);
950 		hxge_debug_init = 0;
951 	}
952 
953 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_destroy_mutexes"));
954 }
955 
956 hxge_status_t
957 hxge_init(p_hxge_t hxgep)
958 {
959 	hxge_status_t status = HXGE_OK;
960 
961 	HXGE_DEBUG_MSG((hxgep, STR_CTL, "==> hxge_init"));
962 
963 	if (hxgep->drv_state & STATE_HW_INITIALIZED) {
964 		return (status);
965 	}
966 
967 	/*
968 	 * Allocate system memory for the receive/transmit buffer blocks and
969 	 * receive/transmit descriptor rings.
970 	 */
971 	status = hxge_alloc_mem_pool(hxgep);
972 	if (status != HXGE_OK) {
973 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "alloc mem failed\n"));
974 		goto hxge_init_fail1;
975 	}
976 
977 	/*
978 	 * Initialize and enable TXDMA channels.
979 	 */
980 	status = hxge_init_txdma_channels(hxgep);
981 	if (status != HXGE_OK) {
982 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "init txdma failed\n"));
983 		goto hxge_init_fail3;
984 	}
985 
986 	/*
987 	 * Initialize and enable RXDMA channels.
988 	 */
989 	status = hxge_init_rxdma_channels(hxgep);
990 	if (status != HXGE_OK) {
991 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "init rxdma failed\n"));
992 		goto hxge_init_fail4;
993 	}
994 
995 	/*
996 	 * Initialize TCAM
997 	 */
998 	status = hxge_classify_init(hxgep);
999 	if (status != HXGE_OK) {
1000 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "init classify failed\n"));
1001 		goto hxge_init_fail5;
1002 	}
1003 
1004 	/*
1005 	 * Initialize the VMAC block.
1006 	 */
1007 	status = hxge_vmac_init(hxgep);
1008 	if (status != HXGE_OK) {
1009 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "init MAC failed\n"));
1010 		goto hxge_init_fail5;
1011 	}
1012 
1013 	/* Bringup - this may be unnecessary when PXE and FCODE available */
1014 	status = hxge_pfc_set_default_mac_addr(hxgep);
1015 	if (status != HXGE_OK) {
1016 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
1017 		    "Default Address Failure\n"));
1018 		goto hxge_init_fail5;
1019 	}
1020 
1021 	/*
1022 	 * Enable hardware interrupts.
1023 	 */
1024 	hxge_intr_hw_enable(hxgep);
1025 	hxgep->drv_state |= STATE_HW_INITIALIZED;
1026 
1027 	goto hxge_init_exit;
1028 
1029 hxge_init_fail5:
1030 	hxge_uninit_rxdma_channels(hxgep);
1031 hxge_init_fail4:
1032 	hxge_uninit_txdma_channels(hxgep);
1033 hxge_init_fail3:
1034 	hxge_free_mem_pool(hxgep);
1035 hxge_init_fail1:
1036 	HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
1037 	    "<== hxge_init status (failed) = 0x%08x", status));
1038 	return (status);
1039 
1040 hxge_init_exit:
1041 
1042 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_init status = 0x%08x",
1043 	    status));
1044 
1045 	return (status);
1046 }
1047 
1048 timeout_id_t
1049 hxge_start_timer(p_hxge_t hxgep, fptrv_t func, int msec)
1050 {
1051 	if ((hxgep->suspended == 0) || (hxgep->suspended == DDI_RESUME)) {
1052 		return (timeout(func, (caddr_t)hxgep,
1053 		    drv_usectohz(1000 * msec)));
1054 	}
1055 	return (NULL);
1056 }
1057 
1058 /*ARGSUSED*/
1059 void
1060 hxge_stop_timer(p_hxge_t hxgep, timeout_id_t timerid)
1061 {
1062 	if (timerid) {
1063 		(void) untimeout(timerid);
1064 	}
1065 }
1066 
1067 void
1068 hxge_uninit(p_hxge_t hxgep)
1069 {
1070 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_uninit"));
1071 
1072 	if (!(hxgep->drv_state & STATE_HW_INITIALIZED)) {
1073 		HXGE_DEBUG_MSG((hxgep, DDI_CTL,
1074 		    "==> hxge_uninit: not initialized"));
1075 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_uninit"));
1076 		return;
1077 	}
1078 
1079 	/* Stop timer */
1080 	if (hxgep->hxge_timerid) {
1081 		hxge_stop_timer(hxgep, hxgep->hxge_timerid);
1082 		hxgep->hxge_timerid = 0;
1083 	}
1084 
1085 	(void) hxge_intr_hw_disable(hxgep);
1086 
1087 	/* Reset the receive VMAC side.  */
1088 	(void) hxge_rx_vmac_disable(hxgep);
1089 
1090 	/* Free classification resources */
1091 	(void) hxge_classify_uninit(hxgep);
1092 
1093 	/* Reset the transmit/receive DMA side.  */
1094 	(void) hxge_txdma_hw_mode(hxgep, HXGE_DMA_STOP);
1095 	(void) hxge_rxdma_hw_mode(hxgep, HXGE_DMA_STOP);
1096 
1097 	hxge_uninit_txdma_channels(hxgep);
1098 	hxge_uninit_rxdma_channels(hxgep);
1099 
1100 	/* Reset the transmit VMAC side.  */
1101 	(void) hxge_tx_vmac_disable(hxgep);
1102 
1103 	hxge_free_mem_pool(hxgep);
1104 
1105 	hxgep->drv_state &= ~STATE_HW_INITIALIZED;
1106 
1107 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_uninit"));
1108 }
1109 
1110 /*ARGSUSED*/
1111 /*VARARGS*/
1112 void
1113 hxge_debug_msg(p_hxge_t hxgep, uint64_t level, char *fmt, ...)
1114 {
1115 	char		msg_buffer[1048];
1116 	char		prefix_buffer[32];
1117 	int		instance;
1118 	uint64_t	debug_level;
1119 	int		cmn_level = CE_CONT;
1120 	va_list		ap;
1121 
1122 	debug_level = (hxgep == NULL) ? hxge_debug_level :
1123 	    hxgep->hxge_debug_level;
1124 
1125 	if ((level & debug_level) || (level == HXGE_NOTE) ||
1126 	    (level == HXGE_ERR_CTL)) {
1127 		/* do the msg processing */
1128 		if (hxge_debug_init == 0) {
1129 			MUTEX_INIT(&hxgedebuglock, NULL, MUTEX_DRIVER, NULL);
1130 			hxge_debug_init = 1;
1131 		}
1132 
1133 		MUTEX_ENTER(&hxgedebuglock);
1134 
1135 		if ((level & HXGE_NOTE)) {
1136 			cmn_level = CE_NOTE;
1137 		}
1138 
1139 		if (level & HXGE_ERR_CTL) {
1140 			cmn_level = CE_WARN;
1141 		}
1142 
1143 		va_start(ap, fmt);
1144 		(void) vsprintf(msg_buffer, fmt, ap);
1145 		va_end(ap);
1146 
1147 		if (hxgep == NULL) {
1148 			instance = -1;
1149 			(void) sprintf(prefix_buffer, "%s :", "hxge");
1150 		} else {
1151 			instance = hxgep->instance;
1152 			(void) sprintf(prefix_buffer,
1153 			    "%s%d :", "hxge", instance);
1154 		}
1155 
1156 		MUTEX_EXIT(&hxgedebuglock);
1157 		cmn_err(cmn_level, "%s %s\n", prefix_buffer, msg_buffer);
1158 	}
1159 }
1160 
1161 char *
1162 hxge_dump_packet(char *addr, int size)
1163 {
1164 	uchar_t		*ap = (uchar_t *)addr;
1165 	int		i;
1166 	static char	etherbuf[1024];
1167 	char		*cp = etherbuf;
1168 	char		digits[] = "0123456789abcdef";
1169 
1170 	if (!size)
1171 		size = 60;
1172 
1173 	if (size > MAX_DUMP_SZ) {
1174 		/* Dump the leading bytes */
1175 		for (i = 0; i < MAX_DUMP_SZ / 2; i++) {
1176 			if (*ap > 0x0f)
1177 				*cp++ = digits[*ap >> 4];
1178 			*cp++ = digits[*ap++ & 0xf];
1179 			*cp++ = ':';
1180 		}
1181 		for (i = 0; i < 20; i++)
1182 			*cp++ = '.';
1183 		/* Dump the last MAX_DUMP_SZ/2 bytes */
1184 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ / 2));
1185 		for (i = 0; i < MAX_DUMP_SZ / 2; i++) {
1186 			if (*ap > 0x0f)
1187 				*cp++ = digits[*ap >> 4];
1188 			*cp++ = digits[*ap++ & 0xf];
1189 			*cp++ = ':';
1190 		}
1191 	} else {
1192 		for (i = 0; i < size; i++) {
1193 			if (*ap > 0x0f)
1194 				*cp++ = digits[*ap >> 4];
1195 			*cp++ = digits[*ap++ & 0xf];
1196 			*cp++ = ':';
1197 		}
1198 	}
1199 	*--cp = 0;
1200 	return (etherbuf);
1201 }
1202 
1203 static void
1204 hxge_suspend(p_hxge_t hxgep)
1205 {
1206 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_suspend"));
1207 
1208 	/*
1209 	 * Stop the link status timer before hxge_intrs_disable() to avoid
1210 	 * accessing the the MSIX table simultaneously. Note that the timer
1211 	 * routine polls for MSIX parity errors.
1212 	 */
1213 	MUTEX_ENTER(&hxgep->timeout.lock);
1214 	if (hxgep->timeout.id)
1215 		(void) untimeout(hxgep->timeout.id);
1216 	MUTEX_EXIT(&hxgep->timeout.lock);
1217 
1218 	hxge_intrs_disable(hxgep);
1219 	hxge_destroy_dev(hxgep);
1220 
1221 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_suspend"));
1222 }
1223 
1224 static hxge_status_t
1225 hxge_resume(p_hxge_t hxgep)
1226 {
1227 	hxge_status_t status = HXGE_OK;
1228 
1229 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_resume"));
1230 	hxgep->suspended = DDI_RESUME;
1231 
1232 	(void) hxge_rxdma_hw_mode(hxgep, HXGE_DMA_START);
1233 	(void) hxge_txdma_hw_mode(hxgep, HXGE_DMA_START);
1234 
1235 	(void) hxge_rx_vmac_enable(hxgep);
1236 	(void) hxge_tx_vmac_enable(hxgep);
1237 
1238 	hxge_intrs_enable(hxgep);
1239 
1240 	hxgep->suspended = 0;
1241 
1242 	/*
1243 	 * Resume the link status timer after hxge_intrs_enable to avoid
1244 	 * accessing MSIX table simultaneously.
1245 	 */
1246 	MUTEX_ENTER(&hxgep->timeout.lock);
1247 	hxgep->timeout.id = timeout(hxge_link_poll, (void *)hxgep,
1248 	    hxgep->timeout.ticks);
1249 	MUTEX_EXIT(&hxgep->timeout.lock);
1250 
1251 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
1252 	    "<== hxge_resume status = 0x%x", status));
1253 
1254 	return (status);
1255 }
1256 
1257 static hxge_status_t
1258 hxge_setup_dev(p_hxge_t hxgep)
1259 {
1260 	hxge_status_t status = HXGE_OK;
1261 
1262 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_setup_dev"));
1263 
1264 	status = hxge_link_init(hxgep);
1265 	if (fm_check_acc_handle(hxgep->dev_regs->hxge_regh) != DDI_FM_OK) {
1266 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
1267 		    "Bad register acc handle"));
1268 		status = HXGE_ERROR;
1269 	}
1270 
1271 	if (status != HXGE_OK) {
1272 		HXGE_DEBUG_MSG((hxgep, MAC_CTL,
1273 		    " hxge_setup_dev status (link init 0x%08x)", status));
1274 		goto hxge_setup_dev_exit;
1275 	}
1276 
1277 hxge_setup_dev_exit:
1278 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
1279 	    "<== hxge_setup_dev status = 0x%08x", status));
1280 
1281 	return (status);
1282 }
1283 
1284 static void
1285 hxge_destroy_dev(p_hxge_t hxgep)
1286 {
1287 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_destroy_dev"));
1288 
1289 	(void) hxge_hw_stop(hxgep);
1290 
1291 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_destroy_dev"));
1292 }
1293 
1294 static hxge_status_t
1295 hxge_setup_system_dma_pages(p_hxge_t hxgep)
1296 {
1297 	int			ddi_status = DDI_SUCCESS;
1298 	uint_t			count;
1299 	ddi_dma_cookie_t	cookie;
1300 	uint_t			iommu_pagesize;
1301 	hxge_status_t		status = HXGE_OK;
1302 
1303 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_setup_system_dma_pages"));
1304 
1305 	hxgep->sys_page_sz = ddi_ptob(hxgep->dip, (ulong_t)1);
1306 	iommu_pagesize = dvma_pagesize(hxgep->dip);
1307 
1308 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
1309 	    " hxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
1310 	    " default_block_size %d iommu_pagesize %d",
1311 	    hxgep->sys_page_sz, ddi_ptob(hxgep->dip, (ulong_t)1),
1312 	    hxgep->rx_default_block_size, iommu_pagesize));
1313 
1314 	if (iommu_pagesize != 0) {
1315 		if (hxgep->sys_page_sz == iommu_pagesize) {
1316 			/* Hydra support up to 8K pages */
1317 			if (iommu_pagesize > 0x2000)
1318 				hxgep->sys_page_sz = 0x2000;
1319 		} else {
1320 			if (hxgep->sys_page_sz > iommu_pagesize)
1321 				hxgep->sys_page_sz = iommu_pagesize;
1322 		}
1323 	}
1324 
1325 	hxgep->sys_page_mask = ~(hxgep->sys_page_sz - 1);
1326 
1327 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
1328 	    "==> hxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
1329 	    "default_block_size %d page mask %d",
1330 	    hxgep->sys_page_sz, ddi_ptob(hxgep->dip, (ulong_t)1),
1331 	    hxgep->rx_default_block_size, hxgep->sys_page_mask));
1332 
1333 	switch (hxgep->sys_page_sz) {
1334 	default:
1335 		hxgep->sys_page_sz = 0x1000;
1336 		hxgep->sys_page_mask = ~(hxgep->sys_page_sz - 1);
1337 		hxgep->rx_default_block_size = 0x1000;
1338 		hxgep->rx_bksize_code = RBR_BKSIZE_4K;
1339 		break;
1340 	case 0x1000:
1341 		hxgep->rx_default_block_size = 0x1000;
1342 		hxgep->rx_bksize_code = RBR_BKSIZE_4K;
1343 		break;
1344 	case 0x2000:
1345 		hxgep->rx_default_block_size = 0x2000;
1346 		hxgep->rx_bksize_code = RBR_BKSIZE_8K;
1347 		break;
1348 	}
1349 
1350 	hxge_rx_dma_attr.dma_attr_align = hxgep->sys_page_sz;
1351 	hxge_tx_dma_attr.dma_attr_align = hxgep->sys_page_sz;
1352 
1353 	/*
1354 	 * Get the system DMA burst size.
1355 	 */
1356 	ddi_status = ddi_dma_alloc_handle(hxgep->dip, &hxge_tx_dma_attr,
1357 	    DDI_DMA_DONTWAIT, 0, &hxgep->dmasparehandle);
1358 	if (ddi_status != DDI_SUCCESS) {
1359 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
1360 		    "ddi_dma_alloc_handle: failed status 0x%x", ddi_status));
1361 		goto hxge_get_soft_properties_exit;
1362 	}
1363 
1364 	ddi_status = ddi_dma_addr_bind_handle(hxgep->dmasparehandle, NULL,
1365 	    (caddr_t)hxgep->dmasparehandle, sizeof (hxgep->dmasparehandle),
1366 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, 0,
1367 	    &cookie, &count);
1368 	if (ddi_status != DDI_DMA_MAPPED) {
1369 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
1370 		    "Binding spare handle to find system burstsize failed."));
1371 		ddi_status = DDI_FAILURE;
1372 		goto hxge_get_soft_properties_fail1;
1373 	}
1374 
1375 	hxgep->sys_burst_sz = ddi_dma_burstsizes(hxgep->dmasparehandle);
1376 	(void) ddi_dma_unbind_handle(hxgep->dmasparehandle);
1377 
1378 hxge_get_soft_properties_fail1:
1379 	ddi_dma_free_handle(&hxgep->dmasparehandle);
1380 
1381 hxge_get_soft_properties_exit:
1382 
1383 	if (ddi_status != DDI_SUCCESS)
1384 		status |= (HXGE_ERROR | HXGE_DDI_FAILED);
1385 
1386 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
1387 	    "<== hxge_setup_system_dma_pages status = 0x%08x", status));
1388 
1389 	return (status);
1390 }
1391 
1392 static hxge_status_t
1393 hxge_alloc_mem_pool(p_hxge_t hxgep)
1394 {
1395 	hxge_status_t status = HXGE_OK;
1396 
1397 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_alloc_mem_pool"));
1398 
1399 	status = hxge_alloc_rx_mem_pool(hxgep);
1400 	if (status != HXGE_OK) {
1401 		return (HXGE_ERROR);
1402 	}
1403 
1404 	status = hxge_alloc_tx_mem_pool(hxgep);
1405 	if (status != HXGE_OK) {
1406 		hxge_free_rx_mem_pool(hxgep);
1407 		return (HXGE_ERROR);
1408 	}
1409 
1410 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_alloc_mem_pool"));
1411 	return (HXGE_OK);
1412 }
1413 
1414 static void
1415 hxge_free_mem_pool(p_hxge_t hxgep)
1416 {
1417 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "==> hxge_free_mem_pool"));
1418 
1419 	hxge_free_rx_mem_pool(hxgep);
1420 	hxge_free_tx_mem_pool(hxgep);
1421 
1422 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "<== hxge_free_mem_pool"));
1423 }
1424 
1425 static hxge_status_t
1426 hxge_alloc_rx_mem_pool(p_hxge_t hxgep)
1427 {
1428 	int			i, j;
1429 	uint32_t		ndmas, st_rdc;
1430 	p_hxge_dma_pt_cfg_t	p_all_cfgp;
1431 	p_hxge_hw_pt_cfg_t	p_cfgp;
1432 	p_hxge_dma_pool_t	dma_poolp;
1433 	p_hxge_dma_common_t	*dma_buf_p;
1434 	p_hxge_dma_pool_t	dma_rbr_cntl_poolp;
1435 	p_hxge_dma_common_t	*dma_rbr_cntl_p;
1436 	p_hxge_dma_pool_t	dma_rcr_cntl_poolp;
1437 	p_hxge_dma_common_t	*dma_rcr_cntl_p;
1438 	p_hxge_dma_pool_t	dma_mbox_cntl_poolp;
1439 	p_hxge_dma_common_t	*dma_mbox_cntl_p;
1440 	size_t			rx_buf_alloc_size;
1441 	size_t			rx_rbr_cntl_alloc_size;
1442 	size_t			rx_rcr_cntl_alloc_size;
1443 	size_t			rx_mbox_cntl_alloc_size;
1444 	uint32_t		*num_chunks;	/* per dma */
1445 	hxge_status_t		status = HXGE_OK;
1446 
1447 	uint32_t		hxge_port_rbr_size;
1448 	uint32_t		hxge_port_rbr_spare_size;
1449 	uint32_t		hxge_port_rcr_size;
1450 
1451 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_rx_mem_pool"));
1452 
1453 	p_all_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
1454 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
1455 	st_rdc = p_cfgp->start_rdc;
1456 	ndmas = p_cfgp->max_rdcs;
1457 
1458 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1459 	    " hxge_alloc_rx_mem_pool st_rdc %d ndmas %d", st_rdc, ndmas));
1460 
1461 	/*
1462 	 * Allocate memory for each receive DMA channel.
1463 	 */
1464 	dma_poolp = (p_hxge_dma_pool_t)KMEM_ZALLOC(sizeof (hxge_dma_pool_t),
1465 	    KM_SLEEP);
1466 	dma_buf_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
1467 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
1468 
1469 	dma_rbr_cntl_poolp = (p_hxge_dma_pool_t)
1470 	    KMEM_ZALLOC(sizeof (hxge_dma_pool_t), KM_SLEEP);
1471 	dma_rbr_cntl_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
1472 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
1473 	dma_rcr_cntl_poolp = (p_hxge_dma_pool_t)
1474 	    KMEM_ZALLOC(sizeof (hxge_dma_pool_t), KM_SLEEP);
1475 	dma_rcr_cntl_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
1476 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
1477 	dma_mbox_cntl_poolp = (p_hxge_dma_pool_t)
1478 	    KMEM_ZALLOC(sizeof (hxge_dma_pool_t), KM_SLEEP);
1479 	dma_mbox_cntl_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
1480 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
1481 
1482 	num_chunks = (uint32_t *)KMEM_ZALLOC(sizeof (uint32_t) * ndmas,
1483 	    KM_SLEEP);
1484 
1485 	/*
1486 	 * Assume that each DMA channel will be configured with default block
1487 	 * size. rbr block counts are mod of batch count (16).
1488 	 */
1489 	hxge_port_rbr_size = p_all_cfgp->rbr_size;
1490 	hxge_port_rcr_size = p_all_cfgp->rcr_size;
1491 
1492 	if (!hxge_port_rbr_size) {
1493 		hxge_port_rbr_size = HXGE_RBR_RBB_DEFAULT;
1494 	}
1495 
1496 	if (hxge_port_rbr_size % HXGE_RXDMA_POST_BATCH) {
1497 		hxge_port_rbr_size = (HXGE_RXDMA_POST_BATCH *
1498 		    (hxge_port_rbr_size / HXGE_RXDMA_POST_BATCH + 1));
1499 	}
1500 
1501 	p_all_cfgp->rbr_size = hxge_port_rbr_size;
1502 	hxge_port_rbr_spare_size = hxge_rbr_spare_size;
1503 
1504 	if (hxge_port_rbr_spare_size % HXGE_RXDMA_POST_BATCH) {
1505 		hxge_port_rbr_spare_size = (HXGE_RXDMA_POST_BATCH *
1506 		    (hxge_port_rbr_spare_size / HXGE_RXDMA_POST_BATCH + 1));
1507 	}
1508 
1509 	rx_buf_alloc_size = (hxgep->rx_default_block_size *
1510 	    (hxge_port_rbr_size + hxge_port_rbr_spare_size));
1511 
1512 	/*
1513 	 * Addresses of receive block ring, receive completion ring and the
1514 	 * mailbox must be all cache-aligned (64 bytes).
1515 	 */
1516 	rx_rbr_cntl_alloc_size = hxge_port_rbr_size + hxge_port_rbr_spare_size;
1517 	rx_rbr_cntl_alloc_size *= sizeof (rx_desc_t);
1518 	rx_rcr_cntl_alloc_size = sizeof (rcr_entry_t) * hxge_port_rcr_size;
1519 	rx_mbox_cntl_alloc_size = sizeof (rxdma_mailbox_t);
1520 
1521 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_alloc_rx_mem_pool: "
1522 	    "hxge_port_rbr_size = %d hxge_port_rbr_spare_size = %d "
1523 	    "hxge_port_rcr_size = %d rx_cntl_alloc_size = %d",
1524 	    hxge_port_rbr_size, hxge_port_rbr_spare_size,
1525 	    hxge_port_rcr_size, rx_cntl_alloc_size));
1526 
1527 	hxgep->hxge_port_rbr_size = hxge_port_rbr_size;
1528 	hxgep->hxge_port_rcr_size = hxge_port_rcr_size;
1529 
1530 	/*
1531 	 * Allocate memory for receive buffers and descriptor rings. Replace
1532 	 * allocation functions with interface functions provided by the
1533 	 * partition manager when it is available.
1534 	 */
1535 	/*
1536 	 * Allocate memory for the receive buffer blocks.
1537 	 */
1538 	for (i = 0; i < ndmas; i++) {
1539 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1540 		    " hxge_alloc_rx_mem_pool to alloc mem: "
1541 		    " dma %d dma_buf_p %llx &dma_buf_p %llx",
1542 		    i, dma_buf_p[i], &dma_buf_p[i]));
1543 
1544 		num_chunks[i] = 0;
1545 
1546 		status = hxge_alloc_rx_buf_dma(hxgep, st_rdc, &dma_buf_p[i],
1547 		    rx_buf_alloc_size, hxgep->rx_default_block_size,
1548 		    &num_chunks[i]);
1549 		if (status != HXGE_OK) {
1550 			break;
1551 		}
1552 
1553 		st_rdc++;
1554 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1555 		    " hxge_alloc_rx_mem_pool DONE  alloc mem: "
1556 		    "dma %d dma_buf_p %llx &dma_buf_p %llx", i,
1557 		    dma_buf_p[i], &dma_buf_p[i]));
1558 	}
1559 
1560 	if (i < ndmas) {
1561 		goto hxge_alloc_rx_mem_fail1;
1562 	}
1563 
1564 	/*
1565 	 * Allocate memory for descriptor rings and mailbox.
1566 	 */
1567 	st_rdc = p_cfgp->start_rdc;
1568 	for (j = 0; j < ndmas; j++) {
1569 		if ((status = hxge_alloc_rx_cntl_dma(hxgep, st_rdc,
1570 		    &dma_rbr_cntl_p[j], &hxge_rx_rbr_desc_dma_attr,
1571 		    rx_rbr_cntl_alloc_size)) != HXGE_OK) {
1572 			break;
1573 		}
1574 
1575 		if ((status = hxge_alloc_rx_cntl_dma(hxgep, st_rdc,
1576 		    &dma_rcr_cntl_p[j], &hxge_rx_rcr_desc_dma_attr,
1577 		    rx_rcr_cntl_alloc_size)) != HXGE_OK) {
1578 			break;
1579 		}
1580 
1581 		if ((status = hxge_alloc_rx_cntl_dma(hxgep, st_rdc,
1582 		    &dma_mbox_cntl_p[j], &hxge_rx_mbox_dma_attr,
1583 		    rx_mbox_cntl_alloc_size)) != HXGE_OK) {
1584 			break;
1585 		}
1586 		st_rdc++;
1587 	}
1588 
1589 	if (j < ndmas) {
1590 		goto hxge_alloc_rx_mem_fail2;
1591 	}
1592 
1593 	dma_poolp->ndmas = ndmas;
1594 	dma_poolp->num_chunks = num_chunks;
1595 	dma_poolp->buf_allocated = B_TRUE;
1596 	hxgep->rx_buf_pool_p = dma_poolp;
1597 	dma_poolp->dma_buf_pool_p = dma_buf_p;
1598 
1599 	dma_rbr_cntl_poolp->ndmas = ndmas;
1600 	dma_rbr_cntl_poolp->buf_allocated = B_TRUE;
1601 	hxgep->rx_rbr_cntl_pool_p = dma_rbr_cntl_poolp;
1602 	dma_rbr_cntl_poolp->dma_buf_pool_p = dma_rbr_cntl_p;
1603 
1604 	dma_rcr_cntl_poolp->ndmas = ndmas;
1605 	dma_rcr_cntl_poolp->buf_allocated = B_TRUE;
1606 	hxgep->rx_rcr_cntl_pool_p = dma_rcr_cntl_poolp;
1607 	dma_rcr_cntl_poolp->dma_buf_pool_p = dma_rcr_cntl_p;
1608 
1609 	dma_mbox_cntl_poolp->ndmas = ndmas;
1610 	dma_mbox_cntl_poolp->buf_allocated = B_TRUE;
1611 	hxgep->rx_mbox_cntl_pool_p = dma_mbox_cntl_poolp;
1612 	dma_mbox_cntl_poolp->dma_buf_pool_p = dma_mbox_cntl_p;
1613 
1614 	goto hxge_alloc_rx_mem_pool_exit;
1615 
1616 hxge_alloc_rx_mem_fail2:
1617 	/* Free control buffers */
1618 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1619 	    "==> hxge_alloc_rx_mem_pool: freeing control bufs (%d)", j));
1620 	for (; j >= 0; j--) {
1621 		hxge_free_rx_cntl_dma(hxgep,
1622 		    (p_hxge_dma_common_t)dma_rbr_cntl_p[j]);
1623 		hxge_free_rx_cntl_dma(hxgep,
1624 		    (p_hxge_dma_common_t)dma_rcr_cntl_p[j]);
1625 		hxge_free_rx_cntl_dma(hxgep,
1626 		    (p_hxge_dma_common_t)dma_mbox_cntl_p[j]);
1627 		HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1628 		    "==> hxge_alloc_rx_mem_pool: control bufs freed (%d)", j));
1629 	}
1630 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1631 	    "==> hxge_alloc_rx_mem_pool: control bufs freed (%d)", j));
1632 
1633 hxge_alloc_rx_mem_fail1:
1634 	/* Free data buffers */
1635 	i--;
1636 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1637 	    "==> hxge_alloc_rx_mem_pool: freeing data bufs (%d)", i));
1638 	for (; i >= 0; i--) {
1639 		hxge_free_rx_buf_dma(hxgep, (p_hxge_dma_common_t)dma_buf_p[i],
1640 		    num_chunks[i]);
1641 	}
1642 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1643 	    "==> hxge_alloc_rx_mem_pool: data bufs freed (%d)", i));
1644 
1645 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
1646 	KMEM_FREE(dma_poolp, sizeof (hxge_dma_pool_t));
1647 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_hxge_dma_common_t));
1648 	KMEM_FREE(dma_rbr_cntl_poolp, sizeof (hxge_dma_pool_t));
1649 	KMEM_FREE(dma_rbr_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
1650 	KMEM_FREE(dma_rcr_cntl_poolp, sizeof (hxge_dma_pool_t));
1651 	KMEM_FREE(dma_rcr_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
1652 	KMEM_FREE(dma_mbox_cntl_poolp, sizeof (hxge_dma_pool_t));
1653 	KMEM_FREE(dma_mbox_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
1654 
1655 hxge_alloc_rx_mem_pool_exit:
1656 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1657 	    "<== hxge_alloc_rx_mem_pool:status 0x%08x", status));
1658 
1659 	return (status);
1660 }
1661 
1662 static void
1663 hxge_free_rx_mem_pool(p_hxge_t hxgep)
1664 {
1665 	uint32_t		i, ndmas;
1666 	p_hxge_dma_pool_t	dma_poolp;
1667 	p_hxge_dma_common_t	*dma_buf_p;
1668 	p_hxge_dma_pool_t	dma_rbr_cntl_poolp;
1669 	p_hxge_dma_common_t	*dma_rbr_cntl_p;
1670 	p_hxge_dma_pool_t	dma_rcr_cntl_poolp;
1671 	p_hxge_dma_common_t	*dma_rcr_cntl_p;
1672 	p_hxge_dma_pool_t	dma_mbox_cntl_poolp;
1673 	p_hxge_dma_common_t	*dma_mbox_cntl_p;
1674 	uint32_t		*num_chunks;
1675 
1676 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_free_rx_mem_pool"));
1677 
1678 	dma_poolp = hxgep->rx_buf_pool_p;
1679 	if (dma_poolp == NULL || (!dma_poolp->buf_allocated)) {
1680 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_free_rx_mem_pool "
1681 		    "(null rx buf pool or buf not allocated"));
1682 		return;
1683 	}
1684 
1685 	dma_rbr_cntl_poolp = hxgep->rx_rbr_cntl_pool_p;
1686 	if (dma_rbr_cntl_poolp == NULL ||
1687 	    (!dma_rbr_cntl_poolp->buf_allocated)) {
1688 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1689 		    "<== hxge_free_rx_mem_pool "
1690 		    "(null rbr cntl buf pool or rbr cntl buf not allocated"));
1691 		return;
1692 	}
1693 
1694 	dma_rcr_cntl_poolp = hxgep->rx_rcr_cntl_pool_p;
1695 	if (dma_rcr_cntl_poolp == NULL ||
1696 	    (!dma_rcr_cntl_poolp->buf_allocated)) {
1697 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1698 		    "<== hxge_free_rx_mem_pool "
1699 		    "(null rcr cntl buf pool or rcr cntl buf not allocated"));
1700 		return;
1701 	}
1702 
1703 	dma_mbox_cntl_poolp = hxgep->rx_mbox_cntl_pool_p;
1704 	if (dma_mbox_cntl_poolp == NULL ||
1705 	    (!dma_mbox_cntl_poolp->buf_allocated)) {
1706 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1707 		    "<== hxge_free_rx_mem_pool "
1708 		    "(null mbox cntl buf pool or mbox cntl buf not allocated"));
1709 		return;
1710 	}
1711 
1712 	dma_buf_p = dma_poolp->dma_buf_pool_p;
1713 	num_chunks = dma_poolp->num_chunks;
1714 
1715 	dma_rbr_cntl_p = dma_rbr_cntl_poolp->dma_buf_pool_p;
1716 	dma_rcr_cntl_p = dma_rcr_cntl_poolp->dma_buf_pool_p;
1717 	dma_mbox_cntl_p = dma_mbox_cntl_poolp->dma_buf_pool_p;
1718 	ndmas = dma_rbr_cntl_poolp->ndmas;
1719 
1720 	for (i = 0; i < ndmas; i++) {
1721 		hxge_free_rx_buf_dma(hxgep, dma_buf_p[i], num_chunks[i]);
1722 	}
1723 
1724 	for (i = 0; i < ndmas; i++) {
1725 		hxge_free_rx_cntl_dma(hxgep, dma_rbr_cntl_p[i]);
1726 		hxge_free_rx_cntl_dma(hxgep, dma_rcr_cntl_p[i]);
1727 		hxge_free_rx_cntl_dma(hxgep, dma_mbox_cntl_p[i]);
1728 	}
1729 
1730 	for (i = 0; i < ndmas; i++) {
1731 		KMEM_FREE(dma_buf_p[i],
1732 		    sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK);
1733 		KMEM_FREE(dma_rbr_cntl_p[i], sizeof (hxge_dma_common_t));
1734 		KMEM_FREE(dma_rcr_cntl_p[i], sizeof (hxge_dma_common_t));
1735 		KMEM_FREE(dma_mbox_cntl_p[i], sizeof (hxge_dma_common_t));
1736 	}
1737 
1738 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
1739 	KMEM_FREE(dma_rbr_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
1740 	KMEM_FREE(dma_rbr_cntl_poolp, sizeof (hxge_dma_pool_t));
1741 	KMEM_FREE(dma_rcr_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
1742 	KMEM_FREE(dma_rcr_cntl_poolp, sizeof (hxge_dma_pool_t));
1743 	KMEM_FREE(dma_mbox_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
1744 	KMEM_FREE(dma_mbox_cntl_poolp, sizeof (hxge_dma_pool_t));
1745 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_hxge_dma_common_t));
1746 	KMEM_FREE(dma_poolp, sizeof (hxge_dma_pool_t));
1747 
1748 	hxgep->rx_buf_pool_p = NULL;
1749 	hxgep->rx_rbr_cntl_pool_p = NULL;
1750 	hxgep->rx_rcr_cntl_pool_p = NULL;
1751 	hxgep->rx_mbox_cntl_pool_p = NULL;
1752 
1753 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_free_rx_mem_pool"));
1754 }
1755 
1756 static hxge_status_t
1757 hxge_alloc_rx_buf_dma(p_hxge_t hxgep, uint16_t dma_channel,
1758     p_hxge_dma_common_t *dmap,
1759     size_t alloc_size, size_t block_size, uint32_t *num_chunks)
1760 {
1761 	p_hxge_dma_common_t	rx_dmap;
1762 	hxge_status_t		status = HXGE_OK;
1763 	size_t			total_alloc_size;
1764 	size_t			allocated = 0;
1765 	int			i, size_index, array_size;
1766 
1767 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_rx_buf_dma"));
1768 
1769 	rx_dmap = (p_hxge_dma_common_t)
1770 	    KMEM_ZALLOC(sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK, KM_SLEEP);
1771 
1772 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1773 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
1774 	    dma_channel, alloc_size, block_size, dmap));
1775 
1776 	total_alloc_size = alloc_size;
1777 
1778 	i = 0;
1779 	size_index = 0;
1780 	array_size = sizeof (alloc_sizes) / sizeof (size_t);
1781 	while ((size_index < array_size) &&
1782 	    (alloc_sizes[size_index] < alloc_size))
1783 		size_index++;
1784 	if (size_index >= array_size) {
1785 		size_index = array_size - 1;
1786 	}
1787 
1788 	while ((allocated < total_alloc_size) &&
1789 	    (size_index >= 0) && (i < HXGE_DMA_BLOCK)) {
1790 		rx_dmap[i].dma_chunk_index = i;
1791 		rx_dmap[i].block_size = block_size;
1792 		rx_dmap[i].alength = alloc_sizes[size_index];
1793 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
1794 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
1795 		rx_dmap[i].dma_channel = dma_channel;
1796 		rx_dmap[i].contig_alloc_type = B_FALSE;
1797 
1798 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1799 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
1800 		    "i %d nblocks %d alength %d",
1801 		    dma_channel, i, &rx_dmap[i], block_size,
1802 		    i, rx_dmap[i].nblocks, rx_dmap[i].alength));
1803 		status = hxge_dma_mem_alloc(hxgep, hxge_force_dma,
1804 		    &hxge_rx_dma_attr, rx_dmap[i].alength,
1805 		    &hxge_dev_buf_dma_acc_attr,
1806 		    DDI_DMA_READ | DDI_DMA_STREAMING,
1807 		    (p_hxge_dma_common_t)(&rx_dmap[i]));
1808 		if (status != HXGE_OK) {
1809 			HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1810 			    " hxge_alloc_rx_buf_dma: Alloc Failed: "
1811 			    " for size: %d", alloc_sizes[size_index]));
1812 			size_index--;
1813 		} else {
1814 			HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1815 			    " alloc_rx_buf_dma allocated rdc %d "
1816 			    "chunk %d size %x dvma %x bufp %llx ",
1817 			    dma_channel, i, rx_dmap[i].alength,
1818 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i]));
1819 			i++;
1820 			allocated += alloc_sizes[size_index];
1821 		}
1822 	}
1823 
1824 	if (allocated < total_alloc_size) {
1825 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
1826 		    " hxge_alloc_rx_buf_dma failed due to"
1827 		    " allocated(%d) < required(%d)",
1828 		    allocated, total_alloc_size));
1829 		goto hxge_alloc_rx_mem_fail1;
1830 	}
1831 
1832 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1833 	    " alloc_rx_buf_dma rdc %d allocated %d chunks", dma_channel, i));
1834 
1835 	*num_chunks = i;
1836 	*dmap = rx_dmap;
1837 
1838 	goto hxge_alloc_rx_mem_exit;
1839 
1840 hxge_alloc_rx_mem_fail1:
1841 	KMEM_FREE(rx_dmap, sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK);
1842 
1843 hxge_alloc_rx_mem_exit:
1844 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1845 	    "<== hxge_alloc_rx_buf_dma status 0x%08x", status));
1846 
1847 	return (status);
1848 }
1849 
1850 /*ARGSUSED*/
1851 static void
1852 hxge_free_rx_buf_dma(p_hxge_t hxgep, p_hxge_dma_common_t dmap,
1853     uint32_t num_chunks)
1854 {
1855 	int i;
1856 
1857 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1858 	    "==> hxge_free_rx_buf_dma: # of chunks %d", num_chunks));
1859 
1860 	for (i = 0; i < num_chunks; i++) {
1861 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
1862 		    "==> hxge_free_rx_buf_dma: chunk %d dmap 0x%llx", i, dmap));
1863 		hxge_dma_mem_free(dmap++);
1864 	}
1865 
1866 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_free_rx_buf_dma"));
1867 }
1868 
1869 /*ARGSUSED*/
1870 static hxge_status_t
1871 hxge_alloc_rx_cntl_dma(p_hxge_t hxgep, uint16_t dma_channel,
1872     p_hxge_dma_common_t *dmap, struct ddi_dma_attr *attr, size_t size)
1873 {
1874 	p_hxge_dma_common_t	rx_dmap;
1875 	hxge_status_t		status = HXGE_OK;
1876 
1877 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_rx_cntl_dma"));
1878 
1879 	rx_dmap = (p_hxge_dma_common_t)
1880 	    KMEM_ZALLOC(sizeof (hxge_dma_common_t), KM_SLEEP);
1881 
1882 	rx_dmap->contig_alloc_type = B_FALSE;
1883 
1884 	status = hxge_dma_mem_alloc(hxgep, hxge_force_dma,
1885 	    attr, size, &hxge_dev_desc_dma_acc_attr,
1886 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT, rx_dmap);
1887 	if (status != HXGE_OK) {
1888 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
1889 		    " hxge_alloc_rx_cntl_dma: Alloc Failed: "
1890 		    " for size: %d", size));
1891 		goto hxge_alloc_rx_cntl_dma_fail1;
1892 	}
1893 
1894 	*dmap = rx_dmap;
1895 
1896 	goto hxge_alloc_rx_cntl_dma_exit;
1897 
1898 hxge_alloc_rx_cntl_dma_fail1:
1899 	KMEM_FREE(rx_dmap, sizeof (hxge_dma_common_t));
1900 
1901 hxge_alloc_rx_cntl_dma_exit:
1902 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
1903 	    "<== hxge_alloc_rx_cntl_dma status 0x%08x", status));
1904 
1905 	return (status);
1906 }
1907 
1908 /*ARGSUSED*/
1909 static void
1910 hxge_free_rx_cntl_dma(p_hxge_t hxgep, p_hxge_dma_common_t dmap)
1911 {
1912 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_free_rx_cntl_dma"));
1913 
1914 	hxge_dma_mem_free(dmap);
1915 
1916 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_free_rx_cntl_dma"));
1917 }
1918 
1919 static hxge_status_t
1920 hxge_alloc_tx_mem_pool(p_hxge_t hxgep)
1921 {
1922 	hxge_status_t		status = HXGE_OK;
1923 	int			i, j;
1924 	uint32_t		ndmas, st_tdc;
1925 	p_hxge_dma_pt_cfg_t	p_all_cfgp;
1926 	p_hxge_hw_pt_cfg_t	p_cfgp;
1927 	p_hxge_dma_pool_t	dma_poolp;
1928 	p_hxge_dma_common_t	*dma_buf_p;
1929 	p_hxge_dma_pool_t	dma_cntl_poolp;
1930 	p_hxge_dma_common_t	*dma_cntl_p;
1931 	size_t			tx_buf_alloc_size;
1932 	size_t			tx_cntl_alloc_size;
1933 	uint32_t		*num_chunks;	/* per dma */
1934 
1935 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "==> hxge_alloc_tx_mem_pool"));
1936 
1937 	p_all_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
1938 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
1939 	st_tdc = p_cfgp->start_tdc;
1940 	ndmas = p_cfgp->max_tdcs;
1941 
1942 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "==> hxge_alloc_tx_mem_pool: "
1943 	    "p_cfgp 0x%016llx start_tdc %d ndmas %d hxgep->max_tdcs %d",
1944 	    p_cfgp, p_cfgp->start_tdc, p_cfgp->max_tdcs, hxgep->max_tdcs));
1945 	/*
1946 	 * Allocate memory for each transmit DMA channel.
1947 	 */
1948 	dma_poolp = (p_hxge_dma_pool_t)KMEM_ZALLOC(sizeof (hxge_dma_pool_t),
1949 	    KM_SLEEP);
1950 	dma_buf_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
1951 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
1952 
1953 	dma_cntl_poolp = (p_hxge_dma_pool_t)
1954 	    KMEM_ZALLOC(sizeof (hxge_dma_pool_t), KM_SLEEP);
1955 	dma_cntl_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
1956 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
1957 
1958 	hxgep->hxge_port_tx_ring_size = hxge_tx_ring_size;
1959 
1960 	/*
1961 	 * Assume that each DMA channel will be configured with default
1962 	 * transmit bufer size for copying transmit data. (For packet payload
1963 	 * over this limit, packets will not be copied.)
1964 	 */
1965 	tx_buf_alloc_size = (hxge_bcopy_thresh * hxge_tx_ring_size);
1966 
1967 	/*
1968 	 * Addresses of transmit descriptor ring and the mailbox must be all
1969 	 * cache-aligned (64 bytes).
1970 	 */
1971 	tx_cntl_alloc_size = hxge_tx_ring_size;
1972 	tx_cntl_alloc_size *= (sizeof (tx_desc_t));
1973 	tx_cntl_alloc_size += sizeof (txdma_mailbox_t);
1974 
1975 	num_chunks = (uint32_t *)KMEM_ZALLOC(sizeof (uint32_t) * ndmas,
1976 	    KM_SLEEP);
1977 
1978 	/*
1979 	 * Allocate memory for transmit buffers and descriptor rings. Replace
1980 	 * allocation functions with interface functions provided by the
1981 	 * partition manager when it is available.
1982 	 *
1983 	 * Allocate memory for the transmit buffer pool.
1984 	 */
1985 	for (i = 0; i < ndmas; i++) {
1986 		num_chunks[i] = 0;
1987 		status = hxge_alloc_tx_buf_dma(hxgep, st_tdc, &dma_buf_p[i],
1988 		    tx_buf_alloc_size, hxge_bcopy_thresh, &num_chunks[i]);
1989 		if (status != HXGE_OK) {
1990 			break;
1991 		}
1992 		st_tdc++;
1993 	}
1994 
1995 	if (i < ndmas) {
1996 		goto hxge_alloc_tx_mem_pool_fail1;
1997 	}
1998 
1999 	st_tdc = p_cfgp->start_tdc;
2000 
2001 	/*
2002 	 * Allocate memory for descriptor rings and mailbox.
2003 	 */
2004 	for (j = 0; j < ndmas; j++) {
2005 		status = hxge_alloc_tx_cntl_dma(hxgep, st_tdc, &dma_cntl_p[j],
2006 		    tx_cntl_alloc_size);
2007 		if (status != HXGE_OK) {
2008 			break;
2009 		}
2010 		st_tdc++;
2011 	}
2012 
2013 	if (j < ndmas) {
2014 		goto hxge_alloc_tx_mem_pool_fail2;
2015 	}
2016 
2017 	dma_poolp->ndmas = ndmas;
2018 	dma_poolp->num_chunks = num_chunks;
2019 	dma_poolp->buf_allocated = B_TRUE;
2020 	dma_poolp->dma_buf_pool_p = dma_buf_p;
2021 	hxgep->tx_buf_pool_p = dma_poolp;
2022 
2023 	dma_cntl_poolp->ndmas = ndmas;
2024 	dma_cntl_poolp->buf_allocated = B_TRUE;
2025 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
2026 	hxgep->tx_cntl_pool_p = dma_cntl_poolp;
2027 
2028 	HXGE_DEBUG_MSG((hxgep, MEM_CTL,
2029 	    "==> hxge_alloc_tx_mem_pool: start_tdc %d "
2030 	    "ndmas %d poolp->ndmas %d", st_tdc, ndmas, dma_poolp->ndmas));
2031 
2032 	goto hxge_alloc_tx_mem_pool_exit;
2033 
2034 hxge_alloc_tx_mem_pool_fail2:
2035 	/* Free control buffers */
2036 	j--;
2037 	for (; j >= 0; j--) {
2038 		hxge_free_tx_cntl_dma(hxgep,
2039 		    (p_hxge_dma_common_t)dma_cntl_p[j]);
2040 	}
2041 
2042 hxge_alloc_tx_mem_pool_fail1:
2043 	/* Free data buffers */
2044 	i--;
2045 	for (; i >= 0; i--) {
2046 		hxge_free_tx_buf_dma(hxgep, (p_hxge_dma_common_t)dma_buf_p[i],
2047 		    num_chunks[i]);
2048 	}
2049 
2050 	KMEM_FREE(dma_poolp, sizeof (hxge_dma_pool_t));
2051 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_hxge_dma_common_t));
2052 	KMEM_FREE(dma_cntl_poolp, sizeof (hxge_dma_pool_t));
2053 	KMEM_FREE(dma_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
2054 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
2055 
2056 hxge_alloc_tx_mem_pool_exit:
2057 	HXGE_DEBUG_MSG((hxgep, MEM_CTL,
2058 	    "<== hxge_alloc_tx_mem_pool:status 0x%08x", status));
2059 
2060 	return (status);
2061 }
2062 
2063 static hxge_status_t
2064 hxge_alloc_tx_buf_dma(p_hxge_t hxgep, uint16_t dma_channel,
2065     p_hxge_dma_common_t *dmap, size_t alloc_size,
2066     size_t block_size, uint32_t *num_chunks)
2067 {
2068 	p_hxge_dma_common_t	tx_dmap;
2069 	hxge_status_t		status = HXGE_OK;
2070 	size_t			total_alloc_size;
2071 	size_t			allocated = 0;
2072 	int			i, size_index, array_size;
2073 
2074 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_tx_buf_dma"));
2075 
2076 	tx_dmap = (p_hxge_dma_common_t)
2077 	    KMEM_ZALLOC(sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK, KM_SLEEP);
2078 
2079 	total_alloc_size = alloc_size;
2080 	i = 0;
2081 	size_index = 0;
2082 	array_size = sizeof (alloc_sizes) / sizeof (size_t);
2083 	while ((size_index < array_size) &&
2084 	    (alloc_sizes[size_index] < alloc_size))
2085 		size_index++;
2086 	if (size_index >= array_size) {
2087 		size_index = array_size - 1;
2088 	}
2089 
2090 	while ((allocated < total_alloc_size) &&
2091 	    (size_index >= 0) && (i < HXGE_DMA_BLOCK)) {
2092 		tx_dmap[i].dma_chunk_index = i;
2093 		tx_dmap[i].block_size = block_size;
2094 		tx_dmap[i].alength = alloc_sizes[size_index];
2095 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
2096 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
2097 		tx_dmap[i].dma_channel = dma_channel;
2098 		tx_dmap[i].contig_alloc_type = B_FALSE;
2099 
2100 		status = hxge_dma_mem_alloc(hxgep, hxge_force_dma,
2101 		    &hxge_tx_dma_attr, tx_dmap[i].alength,
2102 		    &hxge_dev_buf_dma_acc_attr,
2103 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
2104 		    (p_hxge_dma_common_t)(&tx_dmap[i]));
2105 		if (status != HXGE_OK) {
2106 			HXGE_DEBUG_MSG((hxgep, DMA_CTL,
2107 			    " hxge_alloc_tx_buf_dma: Alloc Failed: "
2108 			    " for size: %d", alloc_sizes[size_index]));
2109 			size_index--;
2110 		} else {
2111 			i++;
2112 			allocated += alloc_sizes[size_index];
2113 		}
2114 	}
2115 
2116 	if (allocated < total_alloc_size) {
2117 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2118 		    " hxge_alloc_tx_buf_dma: failed due to"
2119 		    " allocated(%d) < required(%d)",
2120 		    allocated, total_alloc_size));
2121 		goto hxge_alloc_tx_mem_fail1;
2122 	}
2123 
2124 	*num_chunks = i;
2125 	*dmap = tx_dmap;
2126 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
2127 	    "==> hxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
2128 	    *dmap, i));
2129 	goto hxge_alloc_tx_mem_exit;
2130 
2131 hxge_alloc_tx_mem_fail1:
2132 	KMEM_FREE(tx_dmap, sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK);
2133 
2134 hxge_alloc_tx_mem_exit:
2135 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
2136 	    "<== hxge_alloc_tx_buf_dma status 0x%08x", status));
2137 
2138 	return (status);
2139 }
2140 
2141 /*ARGSUSED*/
2142 static void
2143 hxge_free_tx_buf_dma(p_hxge_t hxgep, p_hxge_dma_common_t dmap,
2144     uint32_t num_chunks)
2145 {
2146 	int i;
2147 
2148 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "==> hxge_free_tx_buf_dma"));
2149 
2150 	for (i = 0; i < num_chunks; i++) {
2151 		hxge_dma_mem_free(dmap++);
2152 	}
2153 
2154 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "<== hxge_free_tx_buf_dma"));
2155 }
2156 
2157 /*ARGSUSED*/
2158 static hxge_status_t
2159 hxge_alloc_tx_cntl_dma(p_hxge_t hxgep, uint16_t dma_channel,
2160     p_hxge_dma_common_t *dmap, size_t size)
2161 {
2162 	p_hxge_dma_common_t	tx_dmap;
2163 	hxge_status_t		status = HXGE_OK;
2164 
2165 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_tx_cntl_dma"));
2166 
2167 	tx_dmap = (p_hxge_dma_common_t)KMEM_ZALLOC(sizeof (hxge_dma_common_t),
2168 	    KM_SLEEP);
2169 
2170 	tx_dmap->contig_alloc_type = B_FALSE;
2171 
2172 	status = hxge_dma_mem_alloc(hxgep, hxge_force_dma,
2173 	    &hxge_tx_desc_dma_attr, size, &hxge_dev_desc_dma_acc_attr,
2174 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT, tx_dmap);
2175 	if (status != HXGE_OK) {
2176 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2177 		    " hxge_alloc_tx_cntl_dma: Alloc Failed: "
2178 		    " for size: %d", size));
2179 		goto hxge_alloc_tx_cntl_dma_fail1;
2180 	}
2181 
2182 	*dmap = tx_dmap;
2183 
2184 	goto hxge_alloc_tx_cntl_dma_exit;
2185 
2186 hxge_alloc_tx_cntl_dma_fail1:
2187 	KMEM_FREE(tx_dmap, sizeof (hxge_dma_common_t));
2188 
2189 hxge_alloc_tx_cntl_dma_exit:
2190 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
2191 	    "<== hxge_alloc_tx_cntl_dma status 0x%08x", status));
2192 
2193 	return (status);
2194 }
2195 
2196 /*ARGSUSED*/
2197 static void
2198 hxge_free_tx_cntl_dma(p_hxge_t hxgep, p_hxge_dma_common_t dmap)
2199 {
2200 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_free_tx_cntl_dma"));
2201 
2202 	hxge_dma_mem_free(dmap);
2203 
2204 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_free_tx_cntl_dma"));
2205 }
2206 
2207 static void
2208 hxge_free_tx_mem_pool(p_hxge_t hxgep)
2209 {
2210 	uint32_t		i, ndmas;
2211 	p_hxge_dma_pool_t	dma_poolp;
2212 	p_hxge_dma_common_t	*dma_buf_p;
2213 	p_hxge_dma_pool_t	dma_cntl_poolp;
2214 	p_hxge_dma_common_t	*dma_cntl_p;
2215 	uint32_t		*num_chunks;
2216 
2217 	HXGE_DEBUG_MSG((hxgep, MEM3_CTL, "==> hxge_free_tx_mem_pool"));
2218 
2219 	dma_poolp = hxgep->tx_buf_pool_p;
2220 	if (dma_poolp == NULL || (!dma_poolp->buf_allocated)) {
2221 		HXGE_DEBUG_MSG((hxgep, MEM3_CTL,
2222 		    "<== hxge_free_tx_mem_pool "
2223 		    "(null rx buf pool or buf not allocated"));
2224 		return;
2225 	}
2226 
2227 	dma_cntl_poolp = hxgep->tx_cntl_pool_p;
2228 	if (dma_cntl_poolp == NULL || (!dma_cntl_poolp->buf_allocated)) {
2229 		HXGE_DEBUG_MSG((hxgep, MEM3_CTL,
2230 		    "<== hxge_free_tx_mem_pool "
2231 		    "(null tx cntl buf pool or cntl buf not allocated"));
2232 		return;
2233 	}
2234 
2235 	dma_buf_p = dma_poolp->dma_buf_pool_p;
2236 	num_chunks = dma_poolp->num_chunks;
2237 
2238 	dma_cntl_p = dma_cntl_poolp->dma_buf_pool_p;
2239 	ndmas = dma_cntl_poolp->ndmas;
2240 
2241 	for (i = 0; i < ndmas; i++) {
2242 		hxge_free_tx_buf_dma(hxgep, dma_buf_p[i], num_chunks[i]);
2243 	}
2244 
2245 	for (i = 0; i < ndmas; i++) {
2246 		hxge_free_tx_cntl_dma(hxgep, dma_cntl_p[i]);
2247 	}
2248 
2249 	for (i = 0; i < ndmas; i++) {
2250 		KMEM_FREE(dma_buf_p[i],
2251 		    sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK);
2252 		KMEM_FREE(dma_cntl_p[i], sizeof (hxge_dma_common_t));
2253 	}
2254 
2255 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
2256 	KMEM_FREE(dma_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
2257 	KMEM_FREE(dma_cntl_poolp, sizeof (hxge_dma_pool_t));
2258 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_hxge_dma_common_t));
2259 	KMEM_FREE(dma_poolp, sizeof (hxge_dma_pool_t));
2260 
2261 	hxgep->tx_buf_pool_p = NULL;
2262 	hxgep->tx_cntl_pool_p = NULL;
2263 
2264 	HXGE_DEBUG_MSG((hxgep, MEM3_CTL, "<== hxge_free_tx_mem_pool"));
2265 }
2266 
2267 /*ARGSUSED*/
2268 static hxge_status_t
2269 hxge_dma_mem_alloc(p_hxge_t hxgep, dma_method_t method,
2270     struct ddi_dma_attr *dma_attrp,
2271     size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
2272     p_hxge_dma_common_t dma_p)
2273 {
2274 	caddr_t		kaddrp;
2275 	int		ddi_status = DDI_SUCCESS;
2276 
2277 	dma_p->dma_handle = NULL;
2278 	dma_p->acc_handle = NULL;
2279 	dma_p->kaddrp = NULL;
2280 
2281 	ddi_status = ddi_dma_alloc_handle(hxgep->dip, dma_attrp,
2282 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
2283 	if (ddi_status != DDI_SUCCESS) {
2284 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2285 		    "hxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
2286 		return (HXGE_ERROR | HXGE_DDI_FAILED);
2287 	}
2288 
2289 	ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle, length, acc_attr_p,
2290 	    xfer_flags, DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
2291 	    &dma_p->acc_handle);
2292 	if (ddi_status != DDI_SUCCESS) {
2293 		/* The caller will decide whether it is fatal */
2294 		HXGE_DEBUG_MSG((hxgep, DMA_CTL,
2295 		    "hxge_dma_mem_alloc:ddi_dma_mem_alloc failed"));
2296 		ddi_dma_free_handle(&dma_p->dma_handle);
2297 		dma_p->dma_handle = NULL;
2298 		return (HXGE_ERROR | HXGE_DDI_FAILED);
2299 	}
2300 
2301 	if (dma_p->alength < length) {
2302 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2303 		    "hxge_dma_mem_alloc:ddi_dma_mem_alloc < length."));
2304 		ddi_dma_mem_free(&dma_p->acc_handle);
2305 		ddi_dma_free_handle(&dma_p->dma_handle);
2306 		dma_p->acc_handle = NULL;
2307 		dma_p->dma_handle = NULL;
2308 		return (HXGE_ERROR);
2309 	}
2310 
2311 	ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
2312 	    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
2313 	    &dma_p->dma_cookie, &dma_p->ncookies);
2314 	if (ddi_status != DDI_DMA_MAPPED) {
2315 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2316 		    "hxge_dma_mem_alloc:di_dma_addr_bind failed "
2317 		    "(staus 0x%x ncookies %d.)", ddi_status, dma_p->ncookies));
2318 		if (dma_p->acc_handle) {
2319 			ddi_dma_mem_free(&dma_p->acc_handle);
2320 			dma_p->acc_handle = NULL;
2321 		}
2322 		ddi_dma_free_handle(&dma_p->dma_handle);
2323 		dma_p->dma_handle = NULL;
2324 		return (HXGE_ERROR | HXGE_DDI_FAILED);
2325 	}
2326 
2327 	if (dma_p->ncookies != 1) {
2328 		HXGE_DEBUG_MSG((hxgep, DMA_CTL,
2329 		    "hxge_dma_mem_alloc:ddi_dma_addr_bind > 1 cookie"
2330 		    "(staus 0x%x ncookies %d.)", ddi_status, dma_p->ncookies));
2331 		if (dma_p->acc_handle) {
2332 			ddi_dma_mem_free(&dma_p->acc_handle);
2333 			dma_p->acc_handle = NULL;
2334 		}
2335 		(void) ddi_dma_unbind_handle(dma_p->dma_handle);
2336 		ddi_dma_free_handle(&dma_p->dma_handle);
2337 		dma_p->dma_handle = NULL;
2338 		return (HXGE_ERROR);
2339 	}
2340 
2341 	dma_p->kaddrp = kaddrp;
2342 #if defined(__i386)
2343 	dma_p->ioaddr_pp =
2344 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
2345 #else
2346 	dma_p->ioaddr_pp = (unsigned char *) dma_p->dma_cookie.dmac_laddress;
2347 #endif
2348 
2349 	HPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
2350 
2351 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_dma_mem_alloc: "
2352 	    "dma buffer allocated: dma_p $%p "
2353 	    "return dmac_ladress from cookie $%p dmac_size %d "
2354 	    "dma_p->ioaddr_p $%p "
2355 	    "dma_p->orig_ioaddr_p $%p "
2356 	    "orig_vatopa $%p "
2357 	    "alength %d (0x%x) "
2358 	    "kaddrp $%p "
2359 	    "length %d (0x%x)",
2360 	    dma_p,
2361 	    dma_p->dma_cookie.dmac_laddress,
2362 	    dma_p->dma_cookie.dmac_size,
2363 	    dma_p->ioaddr_pp,
2364 	    dma_p->orig_ioaddr_pp,
2365 	    dma_p->orig_vatopa,
2366 	    dma_p->alength, dma_p->alength,
2367 	    kaddrp,
2368 	    length, length));
2369 
2370 	return (HXGE_OK);
2371 }
2372 
2373 static void
2374 hxge_dma_mem_free(p_hxge_dma_common_t dma_p)
2375 {
2376 	if (dma_p == NULL)
2377 		return;
2378 
2379 	if (dma_p->dma_handle != NULL) {
2380 		if (dma_p->ncookies) {
2381 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
2382 			dma_p->ncookies = 0;
2383 		}
2384 		ddi_dma_free_handle(&dma_p->dma_handle);
2385 		dma_p->dma_handle = NULL;
2386 	}
2387 
2388 	if (dma_p->acc_handle != NULL) {
2389 		ddi_dma_mem_free(&dma_p->acc_handle);
2390 		dma_p->acc_handle = NULL;
2391 		HPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
2392 	}
2393 
2394 	dma_p->kaddrp = NULL;
2395 	dma_p->alength = NULL;
2396 }
2397 
2398 /*
2399  *	hxge_m_start() -- start transmitting and receiving.
2400  *
2401  *	This function is called by the MAC layer when the first
2402  *	stream is open to prepare the hardware ready for sending
2403  *	and transmitting packets.
2404  */
2405 static int
2406 hxge_m_start(void *arg)
2407 {
2408 	p_hxge_t hxgep = (p_hxge_t)arg;
2409 
2410 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "==> hxge_m_start"));
2411 
2412 	MUTEX_ENTER(hxgep->genlock);
2413 
2414 	if (hxge_init(hxgep) != DDI_SUCCESS) {
2415 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2416 		    "<== hxge_m_start: initialization failed"));
2417 		MUTEX_EXIT(hxgep->genlock);
2418 		return (EIO);
2419 	}
2420 
2421 	if (hxgep->hxge_mac_state != HXGE_MAC_STARTED) {
2422 		/*
2423 		 * Start timer to check the system error and tx hangs
2424 		 */
2425 		hxgep->hxge_timerid = hxge_start_timer(hxgep,
2426 		    hxge_check_hw_state, HXGE_CHECK_TIMER);
2427 
2428 		hxgep->hxge_mac_state = HXGE_MAC_STARTED;
2429 
2430 		hxgep->timeout.link_status = 0;
2431 		hxgep->timeout.report_link_status = B_TRUE;
2432 		hxgep->timeout.ticks = drv_usectohz(2 * 1000000);
2433 
2434 		/* Start the link status timer to check the link status */
2435 		MUTEX_ENTER(&hxgep->timeout.lock);
2436 		hxgep->timeout.id = timeout(hxge_link_poll, (void *)hxgep,
2437 		    hxgep->timeout.ticks);
2438 		MUTEX_EXIT(&hxgep->timeout.lock);
2439 	}
2440 
2441 	MUTEX_EXIT(hxgep->genlock);
2442 
2443 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "<== hxge_m_start"));
2444 
2445 	return (0);
2446 }
2447 
2448 /*
2449  * hxge_m_stop(): stop transmitting and receiving.
2450  */
2451 static void
2452 hxge_m_stop(void *arg)
2453 {
2454 	p_hxge_t hxgep = (p_hxge_t)arg;
2455 
2456 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "==> hxge_m_stop"));
2457 
2458 	if (hxgep->hxge_timerid) {
2459 		hxge_stop_timer(hxgep, hxgep->hxge_timerid);
2460 		hxgep->hxge_timerid = 0;
2461 	}
2462 
2463 	/* Stop the link status timer before unregistering */
2464 	MUTEX_ENTER(&hxgep->timeout.lock);
2465 	if (hxgep->timeout.id) {
2466 		(void) untimeout(hxgep->timeout.id);
2467 		hxgep->timeout.id = 0;
2468 	}
2469 	hxge_link_update(hxgep, LINK_STATE_DOWN);
2470 	MUTEX_EXIT(&hxgep->timeout.lock);
2471 
2472 	MUTEX_ENTER(hxgep->genlock);
2473 
2474 	hxge_uninit(hxgep);
2475 
2476 	hxgep->hxge_mac_state = HXGE_MAC_STOPPED;
2477 
2478 	MUTEX_EXIT(hxgep->genlock);
2479 
2480 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "<== hxge_m_stop"));
2481 }
2482 
2483 static int
2484 hxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
2485 {
2486 	p_hxge_t		hxgep = (p_hxge_t)arg;
2487 	struct ether_addr	addrp;
2488 
2489 	HXGE_DEBUG_MSG((hxgep, MAC_CTL, "==> hxge_m_multicst: add %d", add));
2490 
2491 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
2492 
2493 	if (add) {
2494 		if (hxge_add_mcast_addr(hxgep, &addrp)) {
2495 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2496 			    "<== hxge_m_multicst: add multicast failed"));
2497 			return (EINVAL);
2498 		}
2499 	} else {
2500 		if (hxge_del_mcast_addr(hxgep, &addrp)) {
2501 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2502 			    "<== hxge_m_multicst: del multicast failed"));
2503 			return (EINVAL);
2504 		}
2505 	}
2506 
2507 	HXGE_DEBUG_MSG((hxgep, MAC_CTL, "<== hxge_m_multicst"));
2508 
2509 	return (0);
2510 }
2511 
2512 static int
2513 hxge_m_promisc(void *arg, boolean_t on)
2514 {
2515 	p_hxge_t hxgep = (p_hxge_t)arg;
2516 
2517 	HXGE_DEBUG_MSG((hxgep, MAC_CTL, "==> hxge_m_promisc: on %d", on));
2518 
2519 	if (hxge_set_promisc(hxgep, on)) {
2520 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2521 		    "<== hxge_m_promisc: set promisc failed"));
2522 		return (EINVAL);
2523 	}
2524 
2525 	HXGE_DEBUG_MSG((hxgep, MAC_CTL, "<== hxge_m_promisc: on %d", on));
2526 
2527 	return (0);
2528 }
2529 
2530 static void
2531 hxge_m_ioctl(void *arg, queue_t *wq, mblk_t *mp)
2532 {
2533 	p_hxge_t	hxgep = (p_hxge_t)arg;
2534 	struct iocblk	*iocp = (struct iocblk *)mp->b_rptr;
2535 	boolean_t	need_privilege;
2536 	int		err;
2537 	int		cmd;
2538 
2539 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "==> hxge_m_ioctl"));
2540 
2541 	iocp = (struct iocblk *)mp->b_rptr;
2542 	iocp->ioc_error = 0;
2543 	need_privilege = B_TRUE;
2544 	cmd = iocp->ioc_cmd;
2545 
2546 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "==> hxge_m_ioctl: cmd 0x%08x", cmd));
2547 	switch (cmd) {
2548 	default:
2549 		miocnak(wq, mp, 0, EINVAL);
2550 		HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "<== hxge_m_ioctl: invalid"));
2551 		return;
2552 
2553 	case LB_GET_INFO_SIZE:
2554 	case LB_GET_INFO:
2555 	case LB_GET_MODE:
2556 		need_privilege = B_FALSE;
2557 		break;
2558 
2559 	case LB_SET_MODE:
2560 		break;
2561 
2562 	case ND_GET:
2563 		need_privilege = B_FALSE;
2564 		break;
2565 	case ND_SET:
2566 		break;
2567 
2568 	case HXGE_GET_TX_RING_SZ:
2569 	case HXGE_GET_TX_DESC:
2570 	case HXGE_TX_SIDE_RESET:
2571 	case HXGE_RX_SIDE_RESET:
2572 	case HXGE_GLOBAL_RESET:
2573 	case HXGE_RESET_MAC:
2574 	case HXGE_PUT_TCAM:
2575 	case HXGE_GET_TCAM:
2576 	case HXGE_RTRACE:
2577 
2578 		need_privilege = B_FALSE;
2579 		break;
2580 	}
2581 
2582 	if (need_privilege) {
2583 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
2584 		if (err != 0) {
2585 			miocnak(wq, mp, 0, err);
2586 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
2587 			    "<== hxge_m_ioctl: no priv"));
2588 			return;
2589 		}
2590 	}
2591 
2592 	switch (cmd) {
2593 	case ND_GET:
2594 		HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "ND_GET command"));
2595 	case ND_SET:
2596 		HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "ND_SET command"));
2597 		hxge_param_ioctl(hxgep, wq, mp, iocp);
2598 		break;
2599 
2600 	case LB_GET_MODE:
2601 	case LB_SET_MODE:
2602 	case LB_GET_INFO_SIZE:
2603 	case LB_GET_INFO:
2604 		hxge_loopback_ioctl(hxgep, wq, mp, iocp);
2605 		break;
2606 
2607 	case HXGE_PUT_TCAM:
2608 	case HXGE_GET_TCAM:
2609 	case HXGE_GET_TX_RING_SZ:
2610 	case HXGE_GET_TX_DESC:
2611 	case HXGE_TX_SIDE_RESET:
2612 	case HXGE_RX_SIDE_RESET:
2613 	case HXGE_GLOBAL_RESET:
2614 	case HXGE_RESET_MAC:
2615 		HXGE_DEBUG_MSG((hxgep, NEMO_CTL,
2616 		    "==> hxge_m_ioctl: cmd 0x%x", cmd));
2617 		hxge_hw_ioctl(hxgep, wq, mp, iocp);
2618 		break;
2619 	}
2620 
2621 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "<== hxge_m_ioctl"));
2622 }
2623 
2624 /*ARGSUSED*/
2625 static int
2626 hxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
2627 {
2628 	p_hxge_ring_handle_t	rhp = (p_hxge_ring_handle_t)rdriver;
2629 	p_hxge_t		hxgep;
2630 	p_tx_ring_t		ring;
2631 
2632 	ASSERT(rhp != NULL);
2633 	ASSERT((rhp->index >= 0) && (rhp->index < HXGE_MAX_TDCS));
2634 
2635 	hxgep = rhp->hxgep;
2636 
2637 	/*
2638 	 * Get the ring pointer.
2639 	 */
2640 	ring = hxgep->tx_rings->rings[rhp->index];
2641 
2642 	/*
2643 	 * Fill in the handle for the transmit.
2644 	 */
2645 	MUTEX_ENTER(&ring->lock);
2646 	rhp->started = B_TRUE;
2647 	ring->ring_handle = rhp->ring_handle;
2648 	MUTEX_EXIT(&ring->lock);
2649 
2650 	return (0);
2651 }
2652 
2653 static void
2654 hxge_tx_ring_stop(mac_ring_driver_t rdriver)
2655 {
2656 	p_hxge_ring_handle_t    rhp = (p_hxge_ring_handle_t)rdriver;
2657 	p_hxge_t		hxgep;
2658 	p_tx_ring_t		ring;
2659 
2660 	ASSERT(rhp != NULL);
2661 	ASSERT((rhp->index >= 0) && (rhp->index < HXGE_MAX_TDCS));
2662 
2663 	hxgep = rhp->hxgep;
2664 	ring = hxgep->tx_rings->rings[rhp->index];
2665 
2666 	MUTEX_ENTER(&ring->lock);
2667 	ring->ring_handle = (mac_ring_handle_t)NULL;
2668 	rhp->started = B_FALSE;
2669 	MUTEX_EXIT(&ring->lock);
2670 }
2671 
2672 static int
2673 hxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
2674 {
2675 	p_hxge_ring_handle_t	rhp = (p_hxge_ring_handle_t)rdriver;
2676 	p_hxge_t		hxgep;
2677 	p_rx_rcr_ring_t		ring;
2678 	int			i;
2679 
2680 	ASSERT(rhp != NULL);
2681 	ASSERT((rhp->index >= 0) && (rhp->index < HXGE_MAX_TDCS));
2682 
2683 	hxgep = rhp->hxgep;
2684 
2685 	/*
2686 	 * Get pointer to ring.
2687 	 */
2688 	ring = hxgep->rx_rcr_rings->rcr_rings[rhp->index];
2689 
2690 	MUTEX_ENTER(&ring->lock);
2691 
2692 	if (rhp->started) {
2693 		MUTEX_EXIT(&ring->lock);
2694 		return (0);
2695 	}
2696 
2697 	/*
2698 	 * Set the ldvp and ldgp pointers to enable/disable
2699 	 * polling.
2700 	 */
2701 	for (i = 0; i < hxgep->ldgvp->maxldvs; i++) {
2702 		if ((hxgep->ldgvp->ldvp[i].is_rxdma == 1) &&
2703 		    (hxgep->ldgvp->ldvp[i].channel == rhp->index)) {
2704 			ring->ldvp = &hxgep->ldgvp->ldvp[i];
2705 			ring->ldgp = hxgep->ldgvp->ldvp[i].ldgp;
2706 			break;
2707 		}
2708 	}
2709 
2710 	rhp->started = B_TRUE;
2711 	ring->rcr_mac_handle = rhp->ring_handle;
2712 	ring->rcr_gen_num = mr_gen_num;
2713 	MUTEX_EXIT(&ring->lock);
2714 
2715 	return (0);
2716 }
2717 
2718 static void
2719 hxge_rx_ring_stop(mac_ring_driver_t rdriver)
2720 {
2721 	p_hxge_ring_handle_t	rhp = (p_hxge_ring_handle_t)rdriver;
2722 	p_hxge_t		hxgep;
2723 	p_rx_rcr_ring_t		ring;
2724 
2725 	ASSERT(rhp != NULL);
2726 	ASSERT((rhp->index >= 0) && (rhp->index < HXGE_MAX_TDCS));
2727 
2728 	hxgep = rhp->hxgep;
2729 	ring =  hxgep->rx_rcr_rings->rcr_rings[rhp->index];
2730 
2731 	MUTEX_ENTER(&ring->lock);
2732 	rhp->started = B_TRUE;
2733 	ring->rcr_mac_handle = NULL;
2734 	ring->ldvp = NULL;
2735 	ring->ldgp = NULL;
2736 	MUTEX_EXIT(&ring->lock);
2737 }
2738 
2739 static int
2740 hxge_rx_group_start(mac_group_driver_t gdriver)
2741 {
2742 	hxge_ring_group_t	*group = (hxge_ring_group_t *)gdriver;
2743 
2744 	ASSERT(group->hxgep != NULL);
2745 	ASSERT(group->hxgep->hxge_mac_state == HXGE_MAC_STARTED);
2746 
2747 	MUTEX_ENTER(group->hxgep->genlock);
2748 	group->started = B_TRUE;
2749 	MUTEX_EXIT(group->hxgep->genlock);
2750 
2751 	return (0);
2752 }
2753 
2754 static void
2755 hxge_rx_group_stop(mac_group_driver_t gdriver)
2756 {
2757 	hxge_ring_group_t	*group = (hxge_ring_group_t *)gdriver;
2758 
2759 	ASSERT(group->hxgep != NULL);
2760 	ASSERT(group->hxgep->hxge_mac_state == HXGE_MAC_STARTED);
2761 	ASSERT(group->started == B_TRUE);
2762 
2763 	MUTEX_ENTER(group->hxgep->genlock);
2764 	group->started = B_FALSE;
2765 	MUTEX_EXIT(group->hxgep->genlock);
2766 }
2767 
2768 static int
2769 hxge_mmac_get_slot(p_hxge_t hxgep, int *slot)
2770 {
2771 	int	i;
2772 
2773 	/*
2774 	 * Find an open slot.
2775 	 */
2776 	for (i = 0; i < hxgep->mmac.total; i++) {
2777 		if (!hxgep->mmac.addrs[i].set) {
2778 			*slot = i;
2779 			return (0);
2780 		}
2781 	}
2782 
2783 	return (ENXIO);
2784 }
2785 
2786 static int
2787 hxge_mmac_set_addr(p_hxge_t hxgep, int slot, const uint8_t *addr)
2788 {
2789 	struct ether_addr	eaddr;
2790 	hxge_status_t		status = HXGE_OK;
2791 
2792 	bcopy(addr, (uint8_t *)&eaddr, ETHERADDRL);
2793 
2794 	/*
2795 	 * Set new interface local address and re-init device.
2796 	 * This is destructive to any other streams attached
2797 	 * to this device.
2798 	 */
2799 	RW_ENTER_WRITER(&hxgep->filter_lock);
2800 	status = hxge_pfc_set_mac_address(hxgep, slot, &eaddr);
2801 	RW_EXIT(&hxgep->filter_lock);
2802 	if (status != HXGE_OK)
2803 		return (status);
2804 
2805 	hxgep->mmac.addrs[slot].set = B_TRUE;
2806 	bcopy(addr, hxgep->mmac.addrs[slot].addr, ETHERADDRL);
2807 	hxgep->mmac.available--;
2808 	if (slot == HXGE_MAC_DEFAULT_ADDR_SLOT)
2809 		hxgep->mmac.addrs[slot].primary = B_TRUE;
2810 
2811 	return (0);
2812 }
2813 
2814 static int
2815 hxge_mmac_find_addr(p_hxge_t hxgep, const uint8_t *addr, int *slot)
2816 {
2817 	int	i, result;
2818 
2819 	for (i = 0; i < hxgep->mmac.total; i++) {
2820 		if (hxgep->mmac.addrs[i].set) {
2821 			result = memcmp(hxgep->mmac.addrs[i].addr,
2822 			    addr, ETHERADDRL);
2823 			if (result == 0) {
2824 				*slot = i;
2825 				return (0);
2826 			}
2827 		}
2828 	}
2829 
2830 	return (EINVAL);
2831 }
2832 
2833 static int
2834 hxge_mmac_unset_addr(p_hxge_t hxgep, int slot)
2835 {
2836 	hxge_status_t	status;
2837 	int		i;
2838 
2839 	status = hxge_pfc_clear_mac_address(hxgep, slot);
2840 	if (status != HXGE_OK)
2841 		return (status);
2842 
2843 	for (i = 0; i < ETHERADDRL; i++)
2844 		hxgep->mmac.addrs[slot].addr[i] = 0;
2845 
2846 	hxgep->mmac.addrs[slot].set = B_FALSE;
2847 	if (slot == HXGE_MAC_DEFAULT_ADDR_SLOT)
2848 		hxgep->mmac.addrs[slot].primary = B_FALSE;
2849 	hxgep->mmac.available++;
2850 
2851 	return (0);
2852 }
2853 
2854 static int
2855 hxge_rx_group_add_mac(void *arg, const uint8_t *mac_addr)
2856 {
2857 	hxge_ring_group_t	*group = arg;
2858 	p_hxge_t		hxgep = group->hxgep;
2859 	int			slot = 0;
2860 
2861 	ASSERT(group->type == MAC_RING_TYPE_RX);
2862 
2863 	MUTEX_ENTER(hxgep->genlock);
2864 
2865 	/*
2866 	 * Find a slot for the address.
2867 	 */
2868 	if (hxge_mmac_get_slot(hxgep, &slot) != 0) {
2869 		MUTEX_EXIT(hxgep->genlock);
2870 		return (ENOSPC);
2871 	}
2872 
2873 	/*
2874 	 * Program the MAC address.
2875 	 */
2876 	if (hxge_mmac_set_addr(hxgep, slot, mac_addr) != 0) {
2877 		MUTEX_EXIT(hxgep->genlock);
2878 		return (ENOSPC);
2879 	}
2880 
2881 	MUTEX_EXIT(hxgep->genlock);
2882 	return (0);
2883 }
2884 
2885 static int
2886 hxge_rx_group_rem_mac(void *arg, const uint8_t *mac_addr)
2887 {
2888 	hxge_ring_group_t	*group = arg;
2889 	p_hxge_t		hxgep = group->hxgep;
2890 	int			rv, slot;
2891 
2892 	ASSERT(group->type == MAC_RING_TYPE_RX);
2893 
2894 	MUTEX_ENTER(hxgep->genlock);
2895 
2896 	if ((rv = hxge_mmac_find_addr(hxgep, mac_addr, &slot)) != 0) {
2897 		MUTEX_EXIT(hxgep->genlock);
2898 		return (rv);
2899 	}
2900 
2901 	if ((rv = hxge_mmac_unset_addr(hxgep, slot)) != 0) {
2902 		MUTEX_EXIT(hxgep->genlock);
2903 		return (rv);
2904 	}
2905 
2906 	MUTEX_EXIT(hxgep->genlock);
2907 	return (0);
2908 }
2909 
2910 static void
2911 hxge_group_get(void *arg, mac_ring_type_t type, int groupid,
2912     mac_group_info_t *infop, mac_group_handle_t gh)
2913 {
2914 	p_hxge_t		hxgep = arg;
2915 	hxge_ring_group_t	*group;
2916 
2917 	ASSERT(type == MAC_RING_TYPE_RX);
2918 
2919 	switch (type) {
2920 	case MAC_RING_TYPE_RX:
2921 		group = &hxgep->rx_groups[groupid];
2922 		group->hxgep = hxgep;
2923 		group->ghandle = gh;
2924 		group->index = groupid;
2925 		group->type = type;
2926 
2927 		infop->mgi_driver = (mac_group_driver_t)group;
2928 		infop->mgi_start = hxge_rx_group_start;
2929 		infop->mgi_stop = hxge_rx_group_stop;
2930 		infop->mgi_addmac = hxge_rx_group_add_mac;
2931 		infop->mgi_remmac = hxge_rx_group_rem_mac;
2932 		infop->mgi_count = HXGE_MAX_RDCS;
2933 		break;
2934 
2935 	case MAC_RING_TYPE_TX:
2936 	default:
2937 		break;
2938 	}
2939 }
2940 
2941 static int
2942 hxge_ring_get_htable_idx(p_hxge_t hxgep, mac_ring_type_t type, uint32_t channel)
2943 {
2944 	int i;
2945 
2946 	ASSERT(hxgep->ldgvp != NULL);
2947 
2948 	switch (type) {
2949 	case MAC_RING_TYPE_RX:
2950 		for (i = 0; i < hxgep->ldgvp->maxldvs; i++) {
2951 			if ((hxgep->ldgvp->ldvp[i].is_rxdma) &&
2952 			    (hxgep->ldgvp->ldvp[i].channel == channel)) {
2953 				return ((int)
2954 				    hxgep->ldgvp->ldvp[i].ldgp->htable_idx);
2955 			}
2956 		}
2957 		break;
2958 
2959 	case MAC_RING_TYPE_TX:
2960 		for (i = 0; i < hxgep->ldgvp->maxldvs; i++) {
2961 			if ((hxgep->ldgvp->ldvp[i].is_txdma) &&
2962 			    (hxgep->ldgvp->ldvp[i].channel == channel)) {
2963 				return ((int)
2964 				    hxgep->ldgvp->ldvp[i].ldgp->htable_idx);
2965 			}
2966 		}
2967 		break;
2968 
2969 	default:
2970 		break;
2971 	}
2972 
2973 	return (-1);
2974 }
2975 
2976 /*
2977  * Callback function for the GLDv3 layer to register all rings.
2978  */
2979 /*ARGSUSED*/
2980 static void
2981 hxge_fill_ring(void *arg, mac_ring_type_t type, const int rg_index,
2982     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
2983 {
2984 	p_hxge_t	hxgep = arg;
2985 
2986 	ASSERT(hxgep != NULL);
2987 	ASSERT(infop != NULL);
2988 
2989 	switch (type) {
2990 	case MAC_RING_TYPE_TX: {
2991 		p_hxge_ring_handle_t	rhp;
2992 		mac_intr_t		*mintr = &infop->mri_intr;
2993 		p_hxge_intr_t		intrp;
2994 		int			htable_idx;
2995 
2996 		ASSERT((index >= 0) && (index < HXGE_MAX_TDCS));
2997 		rhp = &hxgep->tx_ring_handles[index];
2998 		rhp->hxgep = hxgep;
2999 		rhp->index = index;
3000 		rhp->ring_handle = rh;
3001 		infop->mri_driver = (mac_ring_driver_t)rhp;
3002 		infop->mri_start = hxge_tx_ring_start;
3003 		infop->mri_stop = hxge_tx_ring_stop;
3004 		infop->mri_tx = hxge_tx_ring_send;
3005 		infop->mri_stat = hxge_tx_ring_stat;
3006 
3007 		intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
3008 		htable_idx = hxge_ring_get_htable_idx(hxgep, type, index);
3009 		if (htable_idx >= 0)
3010 			mintr->mi_ddi_handle = intrp->htable[htable_idx];
3011 		else
3012 			mintr->mi_ddi_handle = NULL;
3013 		break;
3014 	}
3015 
3016 	case MAC_RING_TYPE_RX: {
3017 		p_hxge_ring_handle_t    rhp;
3018 		mac_intr_t		hxge_mac_intr;
3019 		p_hxge_intr_t		intrp;
3020 		int			htable_idx;
3021 
3022 		ASSERT((index >= 0) && (index < HXGE_MAX_RDCS));
3023 		rhp = &hxgep->rx_ring_handles[index];
3024 		rhp->hxgep = hxgep;
3025 		rhp->index = index;
3026 		rhp->ring_handle = rh;
3027 
3028 		/*
3029 		 * Entrypoint to enable interrupt (disable poll) and
3030 		 * disable interrupt (enable poll).
3031 		 */
3032 		hxge_mac_intr.mi_handle = (mac_intr_handle_t)rhp;
3033 		hxge_mac_intr.mi_enable = (mac_intr_enable_t)hxge_disable_poll;
3034 		hxge_mac_intr.mi_disable = (mac_intr_disable_t)hxge_enable_poll;
3035 
3036 		intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
3037 		htable_idx = hxge_ring_get_htable_idx(hxgep, type, index);
3038 		if (htable_idx >= 0)
3039 			hxge_mac_intr.mi_ddi_handle = intrp->htable[htable_idx];
3040 		else
3041 			hxge_mac_intr.mi_ddi_handle = NULL;
3042 
3043 		infop->mri_driver = (mac_ring_driver_t)rhp;
3044 		infop->mri_start = hxge_rx_ring_start;
3045 		infop->mri_stop = hxge_rx_ring_stop;
3046 		infop->mri_intr = hxge_mac_intr;
3047 		infop->mri_poll = hxge_rx_poll;
3048 		infop->mri_stat = hxge_rx_ring_stat;
3049 		break;
3050 	}
3051 
3052 	default:
3053 		break;
3054 	}
3055 }
3056 
3057 /*ARGSUSED*/
3058 boolean_t
3059 hxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
3060 {
3061 	p_hxge_t	hxgep = arg;
3062 
3063 	switch (cap) {
3064 	case MAC_CAPAB_HCKSUM: {
3065 		uint32_t	*txflags = cap_data;
3066 
3067 		*txflags = HCKSUM_INET_PARTIAL;
3068 		break;
3069 	}
3070 
3071 	case MAC_CAPAB_RINGS: {
3072 		mac_capab_rings_t	*cap_rings = cap_data;
3073 
3074 		MUTEX_ENTER(hxgep->genlock);
3075 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
3076 			cap_rings->mr_group_type = MAC_GROUP_TYPE_STATIC;
3077 			cap_rings->mr_rnum = HXGE_MAX_RDCS;
3078 			cap_rings->mr_rget = hxge_fill_ring;
3079 			cap_rings->mr_gnum = HXGE_MAX_RX_GROUPS;
3080 			cap_rings->mr_gget = hxge_group_get;
3081 			cap_rings->mr_gaddring = NULL;
3082 			cap_rings->mr_gremring = NULL;
3083 		} else {
3084 			cap_rings->mr_group_type = MAC_GROUP_TYPE_STATIC;
3085 			cap_rings->mr_rnum = HXGE_MAX_TDCS;
3086 			cap_rings->mr_rget = hxge_fill_ring;
3087 			cap_rings->mr_gnum = 0;
3088 			cap_rings->mr_gget = NULL;
3089 			cap_rings->mr_gaddring = NULL;
3090 			cap_rings->mr_gremring = NULL;
3091 		}
3092 		MUTEX_EXIT(hxgep->genlock);
3093 		break;
3094 	}
3095 
3096 	default:
3097 		return (B_FALSE);
3098 	}
3099 	return (B_TRUE);
3100 }
3101 
3102 static boolean_t
3103 hxge_param_locked(mac_prop_id_t pr_num)
3104 {
3105 	/*
3106 	 * All adv_* parameters are locked (read-only) while
3107 	 * the device is in any sort of loopback mode ...
3108 	 */
3109 	switch (pr_num) {
3110 		case MAC_PROP_ADV_1000FDX_CAP:
3111 		case MAC_PROP_EN_1000FDX_CAP:
3112 		case MAC_PROP_ADV_1000HDX_CAP:
3113 		case MAC_PROP_EN_1000HDX_CAP:
3114 		case MAC_PROP_ADV_100FDX_CAP:
3115 		case MAC_PROP_EN_100FDX_CAP:
3116 		case MAC_PROP_ADV_100HDX_CAP:
3117 		case MAC_PROP_EN_100HDX_CAP:
3118 		case MAC_PROP_ADV_10FDX_CAP:
3119 		case MAC_PROP_EN_10FDX_CAP:
3120 		case MAC_PROP_ADV_10HDX_CAP:
3121 		case MAC_PROP_EN_10HDX_CAP:
3122 		case MAC_PROP_AUTONEG:
3123 		case MAC_PROP_FLOWCTRL:
3124 			return (B_TRUE);
3125 	}
3126 	return (B_FALSE);
3127 }
3128 
3129 /*
3130  * callback functions for set/get of properties
3131  */
3132 static int
3133 hxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
3134     uint_t pr_valsize, const void *pr_val)
3135 {
3136 	hxge_t		*hxgep = barg;
3137 	p_hxge_stats_t	statsp;
3138 	int		err = 0;
3139 	uint32_t	new_mtu, old_framesize, new_framesize;
3140 
3141 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL, "==> hxge_m_setprop"));
3142 
3143 	statsp = hxgep->statsp;
3144 	MUTEX_ENTER(hxgep->genlock);
3145 	if (statsp->port_stats.lb_mode != hxge_lb_normal &&
3146 	    hxge_param_locked(pr_num)) {
3147 		/*
3148 		 * All adv_* parameters are locked (read-only)
3149 		 * while the device is in any sort of loopback mode.
3150 		 */
3151 		HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3152 		    "==> hxge_m_setprop: loopback mode: read only"));
3153 		MUTEX_EXIT(hxgep->genlock);
3154 		return (EBUSY);
3155 	}
3156 
3157 	switch (pr_num) {
3158 		/*
3159 		 * These properties are either not exist or read only
3160 		 */
3161 		case MAC_PROP_EN_1000FDX_CAP:
3162 		case MAC_PROP_EN_100FDX_CAP:
3163 		case MAC_PROP_EN_10FDX_CAP:
3164 		case MAC_PROP_EN_1000HDX_CAP:
3165 		case MAC_PROP_EN_100HDX_CAP:
3166 		case MAC_PROP_EN_10HDX_CAP:
3167 		case MAC_PROP_ADV_1000FDX_CAP:
3168 		case MAC_PROP_ADV_1000HDX_CAP:
3169 		case MAC_PROP_ADV_100FDX_CAP:
3170 		case MAC_PROP_ADV_100HDX_CAP:
3171 		case MAC_PROP_ADV_10FDX_CAP:
3172 		case MAC_PROP_ADV_10HDX_CAP:
3173 		case MAC_PROP_STATUS:
3174 		case MAC_PROP_SPEED:
3175 		case MAC_PROP_DUPLEX:
3176 		case MAC_PROP_AUTONEG:
3177 		/*
3178 		 * Flow control is handled in the shared domain and
3179 		 * it is readonly here.
3180 		 */
3181 		case MAC_PROP_FLOWCTRL:
3182 			err = EINVAL;
3183 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3184 			    "==> hxge_m_setprop:  read only property %d",
3185 			    pr_num));
3186 			break;
3187 
3188 		case MAC_PROP_MTU:
3189 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
3190 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3191 			    "==> hxge_m_setprop: set MTU: %d", new_mtu));
3192 
3193 			new_framesize = new_mtu + MTU_TO_FRAME_SIZE;
3194 			if (new_framesize == hxgep->vmac.maxframesize) {
3195 				err = 0;
3196 				break;
3197 			}
3198 
3199 			if (hxgep->hxge_mac_state == HXGE_MAC_STARTED) {
3200 				err = EBUSY;
3201 				break;
3202 			}
3203 
3204 			if (new_framesize < MIN_FRAME_SIZE ||
3205 			    new_framesize > MAX_FRAME_SIZE) {
3206 				err = EINVAL;
3207 				break;
3208 			}
3209 
3210 			old_framesize = hxgep->vmac.maxframesize;
3211 			hxgep->vmac.maxframesize = (uint16_t)new_framesize;
3212 
3213 			if (hxge_vmac_set_framesize(hxgep)) {
3214 				hxgep->vmac.maxframesize =
3215 				    (uint16_t)old_framesize;
3216 				err = EINVAL;
3217 				break;
3218 			}
3219 
3220 			err = mac_maxsdu_update(hxgep->mach, new_mtu);
3221 			if (err) {
3222 				hxgep->vmac.maxframesize =
3223 				    (uint16_t)old_framesize;
3224 				(void) hxge_vmac_set_framesize(hxgep);
3225 			}
3226 
3227 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3228 			    "==> hxge_m_setprop: set MTU: %d maxframe %d",
3229 			    new_mtu, hxgep->vmac.maxframesize));
3230 			break;
3231 
3232 		case MAC_PROP_PRIVATE:
3233 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3234 			    "==> hxge_m_setprop: private property"));
3235 			err = hxge_set_priv_prop(hxgep, pr_name, pr_valsize,
3236 			    pr_val);
3237 			break;
3238 
3239 		default:
3240 			err = ENOTSUP;
3241 			break;
3242 	}
3243 
3244 	MUTEX_EXIT(hxgep->genlock);
3245 
3246 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3247 	    "<== hxge_m_setprop (return %d)", err));
3248 
3249 	return (err);
3250 }
3251 
3252 static int
3253 hxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
3254     uint_t pr_valsize, void *pr_val)
3255 {
3256 	hxge_t 		*hxgep = barg;
3257 	p_hxge_stats_t	statsp = hxgep->statsp;
3258 	int		err = 0;
3259 	link_flowctrl_t fl;
3260 	uint64_t	tmp = 0;
3261 	link_state_t	ls;
3262 
3263 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3264 	    "==> hxge_m_getprop: pr_num %d", pr_num));
3265 
3266 	switch (pr_num) {
3267 		case MAC_PROP_DUPLEX:
3268 			*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
3269 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3270 			    "==> hxge_m_getprop: duplex mode %d",
3271 			    *(uint8_t *)pr_val));
3272 			break;
3273 
3274 		case MAC_PROP_SPEED:
3275 			ASSERT(pr_valsize >= sizeof (uint64_t));
3276 			tmp = statsp->mac_stats.link_speed * 1000000ull;
3277 			bcopy(&tmp, pr_val, sizeof (tmp));
3278 			break;
3279 
3280 		case MAC_PROP_STATUS:
3281 			ASSERT(pr_valsize >= sizeof (link_state_t));
3282 			if (!statsp->mac_stats.link_up)
3283 				ls = LINK_STATE_DOWN;
3284 			else
3285 				ls = LINK_STATE_UP;
3286 			bcopy(&ls, pr_val, sizeof (ls));
3287 			break;
3288 
3289 		case MAC_PROP_FLOWCTRL:
3290 			/*
3291 			 * Flow control is supported by the shared domain and
3292 			 * it is currently transmit only
3293 			 */
3294 			ASSERT(pr_valsize < sizeof (link_flowctrl_t));
3295 			fl = LINK_FLOWCTRL_TX;
3296 			bcopy(&fl, pr_val, sizeof (fl));
3297 			break;
3298 		case MAC_PROP_AUTONEG:
3299 			/* 10G link only and it is not negotiable */
3300 			*(uint8_t *)pr_val = 0;
3301 			break;
3302 		case MAC_PROP_ADV_1000FDX_CAP:
3303 		case MAC_PROP_ADV_100FDX_CAP:
3304 		case MAC_PROP_ADV_10FDX_CAP:
3305 		case MAC_PROP_ADV_1000HDX_CAP:
3306 		case MAC_PROP_ADV_100HDX_CAP:
3307 		case MAC_PROP_ADV_10HDX_CAP:
3308 		case MAC_PROP_EN_1000FDX_CAP:
3309 		case MAC_PROP_EN_100FDX_CAP:
3310 		case MAC_PROP_EN_10FDX_CAP:
3311 		case MAC_PROP_EN_1000HDX_CAP:
3312 		case MAC_PROP_EN_100HDX_CAP:
3313 		case MAC_PROP_EN_10HDX_CAP:
3314 			err = ENOTSUP;
3315 			break;
3316 
3317 		case MAC_PROP_PRIVATE:
3318 			err = hxge_get_priv_prop(hxgep, pr_name, pr_valsize,
3319 			    pr_val);
3320 			break;
3321 
3322 		default:
3323 			err = EINVAL;
3324 			break;
3325 	}
3326 
3327 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL, "<== hxge_m_getprop"));
3328 
3329 	return (err);
3330 }
3331 
3332 static void
3333 hxge_m_propinfo(void *arg, const char *pr_name,
3334     mac_prop_id_t pr_num, mac_prop_info_handle_t prh)
3335 {
3336 	_NOTE(ARGUNUSED(arg));
3337 	switch (pr_num) {
3338 	case MAC_PROP_DUPLEX:
3339 	case MAC_PROP_SPEED:
3340 	case MAC_PROP_STATUS:
3341 	case MAC_PROP_AUTONEG:
3342 	case MAC_PROP_FLOWCTRL:
3343 		mac_prop_info_set_perm(prh, MAC_PROP_PERM_READ);
3344 		break;
3345 
3346 	case MAC_PROP_MTU:
3347 		mac_prop_info_set_range_uint32(prh,
3348 		    MIN_FRAME_SIZE - MTU_TO_FRAME_SIZE,
3349 		    MAX_FRAME_SIZE - MTU_TO_FRAME_SIZE);
3350 		break;
3351 
3352 	case MAC_PROP_PRIVATE: {
3353 		char valstr[MAXNAMELEN];
3354 
3355 		bzero(valstr, sizeof (valstr));
3356 
3357 		/* Receive Interrupt Blanking Parameters */
3358 		if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
3359 			(void) snprintf(valstr, sizeof (valstr), "%d",
3360 			    RXDMA_RCR_TO_DEFAULT);
3361 		} else if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
3362 			(void) snprintf(valstr, sizeof (valstr), "%d",
3363 			    RXDMA_RCR_PTHRES_DEFAULT);
3364 
3365 		/* Classification and Load Distribution Configuration */
3366 		} else if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0 ||
3367 		    strcmp(pr_name, "_class_opt_ipv4_udp") == 0 ||
3368 		    strcmp(pr_name, "_class_opt_ipv4_ah") == 0 ||
3369 		    strcmp(pr_name, "_class_opt_ipv4_sctp") == 0 ||
3370 		    strcmp(pr_name, "_class_opt_ipv6_tcp") == 0 ||
3371 		    strcmp(pr_name, "_class_opt_ipv6_udp") == 0 ||
3372 		    strcmp(pr_name, "_class_opt_ipv6_ah") == 0 ||
3373 		    strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
3374 			(void) snprintf(valstr, sizeof (valstr), "%d",
3375 			    HXGE_CLASS_TCAM_LOOKUP);
3376 		}
3377 
3378 		if (strlen(valstr) > 0)
3379 			mac_prop_info_set_default_str(prh, valstr);
3380 		break;
3381 	}
3382 	}
3383 }
3384 
3385 
3386 /* ARGSUSED */
3387 static int
3388 hxge_set_priv_prop(p_hxge_t hxgep, const char *pr_name, uint_t pr_valsize,
3389     const void *pr_val)
3390 {
3391 	p_hxge_param_t	param_arr = hxgep->param_arr;
3392 	int		err = 0;
3393 
3394 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3395 	    "==> hxge_set_priv_prop: name %s (value %s)", pr_name, pr_val));
3396 
3397 	if (pr_val == NULL) {
3398 		return (EINVAL);
3399 	}
3400 
3401 	/* Blanking */
3402 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
3403 		err = hxge_param_rx_intr_time(hxgep, NULL, NULL,
3404 		    (char *)pr_val, (caddr_t)&param_arr[param_rxdma_intr_time]);
3405 	} else if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
3406 		err = hxge_param_rx_intr_pkts(hxgep, NULL, NULL,
3407 		    (char *)pr_val, (caddr_t)&param_arr[param_rxdma_intr_pkts]);
3408 
3409 	/* Classification */
3410 	} else if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
3411 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
3412 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
3413 	} else if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
3414 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
3415 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
3416 	} else if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
3417 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
3418 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
3419 	} else if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
3420 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
3421 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
3422 	} else if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
3423 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
3424 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
3425 	} else if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
3426 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
3427 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
3428 	} else if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
3429 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
3430 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
3431 	} else if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
3432 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
3433 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
3434 	} else {
3435 		err = EINVAL;
3436 	}
3437 
3438 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3439 	    "<== hxge_set_priv_prop: err %d", err));
3440 
3441 	return (err);
3442 }
3443 
3444 static int
3445 hxge_get_priv_prop(p_hxge_t hxgep, const char *pr_name, uint_t pr_valsize,
3446     void *pr_val)
3447 {
3448 	p_hxge_param_t	param_arr = hxgep->param_arr;
3449 	char		valstr[MAXNAMELEN];
3450 	int		err = 0;
3451 	uint_t		strsize;
3452 	int		value = 0;
3453 
3454 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3455 	    "==> hxge_get_priv_prop: property %s", pr_name));
3456 
3457 	/* Receive Interrupt Blanking Parameters */
3458 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
3459 		value = hxgep->intr_timeout;
3460 	} else if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
3461 		value = hxgep->intr_threshold;
3462 
3463 	/* Classification and Load Distribution Configuration */
3464 	} else if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
3465 		err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
3466 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
3467 
3468 		value = (int)param_arr[param_class_opt_ipv4_tcp].value;
3469 	} else if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
3470 		err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
3471 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
3472 
3473 		value = (int)param_arr[param_class_opt_ipv4_udp].value;
3474 	} else if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
3475 		err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
3476 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
3477 
3478 		value = (int)param_arr[param_class_opt_ipv4_ah].value;
3479 	} else if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
3480 		err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
3481 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
3482 
3483 		value = (int)param_arr[param_class_opt_ipv4_sctp].value;
3484 	} else if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
3485 		err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
3486 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
3487 
3488 		value = (int)param_arr[param_class_opt_ipv6_tcp].value;
3489 	} else if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
3490 		err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
3491 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
3492 
3493 		value = (int)param_arr[param_class_opt_ipv6_udp].value;
3494 	} else if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
3495 		err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
3496 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
3497 
3498 		value = (int)param_arr[param_class_opt_ipv6_ah].value;
3499 	} else if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
3500 		err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
3501 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
3502 
3503 		value = (int)param_arr[param_class_opt_ipv6_sctp].value;
3504 	} else {
3505 		err = EINVAL;
3506 	}
3507 
3508 	if (err == 0) {
3509 		(void) snprintf(valstr, sizeof (valstr), "0x%x", value);
3510 
3511 		strsize = (uint_t)strlen(valstr);
3512 		if (pr_valsize < strsize) {
3513 			err = ENOBUFS;
3514 		} else {
3515 			(void) strlcpy(pr_val, valstr, pr_valsize);
3516 		}
3517 	}
3518 
3519 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
3520 	    "<== hxge_get_priv_prop: return %d", err));
3521 
3522 	return (err);
3523 }
3524 /*
3525  * Module loading and removing entry points.
3526  */
3527 DDI_DEFINE_STREAM_OPS(hxge_dev_ops, nulldev, nulldev, hxge_attach, hxge_detach,
3528     nodev, NULL, D_MP, NULL, NULL);
3529 
3530 extern struct mod_ops mod_driverops;
3531 
3532 #define	HXGE_DESC_VER	"HXGE 10Gb Ethernet Driver"
3533 
3534 /*
3535  * Module linkage information for the kernel.
3536  */
3537 static struct modldrv hxge_modldrv = {
3538 	&mod_driverops,
3539 	HXGE_DESC_VER,
3540 	&hxge_dev_ops
3541 };
3542 
3543 static struct modlinkage modlinkage = {
3544 	MODREV_1, (void *) &hxge_modldrv, NULL
3545 };
3546 
3547 int
3548 _init(void)
3549 {
3550 	int status;
3551 
3552 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
3553 	mac_init_ops(&hxge_dev_ops, "hxge");
3554 	status = ddi_soft_state_init(&hxge_list, sizeof (hxge_t), 0);
3555 	if (status != 0) {
3556 		HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL,
3557 		    "failed to init device soft state"));
3558 		mac_fini_ops(&hxge_dev_ops);
3559 		goto _init_exit;
3560 	}
3561 
3562 	status = mod_install(&modlinkage);
3563 	if (status != 0) {
3564 		ddi_soft_state_fini(&hxge_list);
3565 		HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL, "Mod install failed"));
3566 		goto _init_exit;
3567 	}
3568 
3569 	MUTEX_INIT(&hxge_common_lock, NULL, MUTEX_DRIVER, NULL);
3570 
3571 _init_exit:
3572 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "_init status = 0x%X", status));
3573 
3574 	return (status);
3575 }
3576 
3577 int
3578 _fini(void)
3579 {
3580 	int status;
3581 
3582 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
3583 
3584 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
3585 
3586 	if (hxge_mblks_pending)
3587 		return (EBUSY);
3588 
3589 	status = mod_remove(&modlinkage);
3590 	if (status != DDI_SUCCESS) {
3591 		HXGE_DEBUG_MSG((NULL, MOD_CTL,
3592 		    "Module removal failed 0x%08x", status));
3593 		goto _fini_exit;
3594 	}
3595 
3596 	mac_fini_ops(&hxge_dev_ops);
3597 
3598 	ddi_soft_state_fini(&hxge_list);
3599 
3600 	MUTEX_DESTROY(&hxge_common_lock);
3601 
3602 _fini_exit:
3603 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "_fini status = 0x%08x", status));
3604 
3605 	return (status);
3606 }
3607 
3608 int
3609 _info(struct modinfo *modinfop)
3610 {
3611 	int status;
3612 
3613 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
3614 	status = mod_info(&modlinkage, modinfop);
3615 	HXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
3616 
3617 	return (status);
3618 }
3619 
3620 /*ARGSUSED*/
3621 static hxge_status_t
3622 hxge_add_intrs(p_hxge_t hxgep)
3623 {
3624 	int		intr_types;
3625 	int		type = 0;
3626 	int		ddi_status = DDI_SUCCESS;
3627 	hxge_status_t	status = HXGE_OK;
3628 
3629 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs"));
3630 
3631 	hxgep->hxge_intr_type.intr_registered = B_FALSE;
3632 	hxgep->hxge_intr_type.intr_enabled = B_FALSE;
3633 	hxgep->hxge_intr_type.msi_intx_cnt = 0;
3634 	hxgep->hxge_intr_type.intr_added = 0;
3635 	hxgep->hxge_intr_type.niu_msi_enable = B_FALSE;
3636 	hxgep->hxge_intr_type.intr_type = 0;
3637 
3638 	if (hxge_msi_enable) {
3639 		hxgep->hxge_intr_type.niu_msi_enable = B_TRUE;
3640 	}
3641 
3642 	/* Get the supported interrupt types */
3643 	if ((ddi_status = ddi_intr_get_supported_types(hxgep->dip, &intr_types))
3644 	    != DDI_SUCCESS) {
3645 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "<== hxge_add_intrs: "
3646 		    "ddi_intr_get_supported_types failed: status 0x%08x",
3647 		    ddi_status));
3648 		return (HXGE_ERROR | HXGE_DDI_FAILED);
3649 	}
3650 
3651 	hxgep->hxge_intr_type.intr_types = intr_types;
3652 
3653 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs: "
3654 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
3655 
3656 	/*
3657 	 * Pick the interrupt type to use MSIX, MSI, INTX hxge_msi_enable:
3658 	 *	(1): 1 - MSI
3659 	 *	(2): 2 - MSI-X
3660 	 *	others - FIXED
3661 	 */
3662 	switch (hxge_msi_enable) {
3663 	default:
3664 		type = DDI_INTR_TYPE_FIXED;
3665 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs: "
3666 		    "use fixed (intx emulation) type %08x", type));
3667 		break;
3668 
3669 	case 2:
3670 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs: "
3671 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
3672 		if (intr_types & DDI_INTR_TYPE_MSIX) {
3673 			type = DDI_INTR_TYPE_MSIX;
3674 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
3675 			    "==> hxge_add_intrs: "
3676 			    "ddi_intr_get_supported_types: MSIX 0x%08x", type));
3677 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
3678 			type = DDI_INTR_TYPE_MSI;
3679 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
3680 			    "==> hxge_add_intrs: "
3681 			    "ddi_intr_get_supported_types: MSI 0x%08x", type));
3682 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
3683 			type = DDI_INTR_TYPE_FIXED;
3684 			HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs: "
3685 			    "ddi_intr_get_supported_types: MSXED0x%08x", type));
3686 		}
3687 		break;
3688 
3689 	case 1:
3690 		if (intr_types & DDI_INTR_TYPE_MSI) {
3691 			type = DDI_INTR_TYPE_MSI;
3692 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
3693 			    "==> hxge_add_intrs: "
3694 			    "ddi_intr_get_supported_types: MSI 0x%08x", type));
3695 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
3696 			type = DDI_INTR_TYPE_MSIX;
3697 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
3698 			    "==> hxge_add_intrs: "
3699 			    "ddi_intr_get_supported_types: MSIX 0x%08x", type));
3700 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
3701 			type = DDI_INTR_TYPE_FIXED;
3702 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
3703 			    "==> hxge_add_intrs: "
3704 			    "ddi_intr_get_supported_types: MSXED0x%08x", type));
3705 		}
3706 	}
3707 
3708 	hxgep->hxge_intr_type.intr_type = type;
3709 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
3710 	    type == DDI_INTR_TYPE_FIXED) &&
3711 	    hxgep->hxge_intr_type.niu_msi_enable) {
3712 		if ((status = hxge_add_intrs_adv(hxgep)) != DDI_SUCCESS) {
3713 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
3714 			    " hxge_add_intrs: "
3715 			    " hxge_add_intrs_adv failed: status 0x%08x",
3716 			    status));
3717 			return (status);
3718 		} else {
3719 			HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_add_intrs: "
3720 			    "interrupts registered : type %d", type));
3721 			hxgep->hxge_intr_type.intr_registered = B_TRUE;
3722 
3723 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
3724 			    "\nAdded advanced hxge add_intr_adv "
3725 			    "intr type 0x%x\n", type));
3726 
3727 			return (status);
3728 		}
3729 	}
3730 
3731 	if (!hxgep->hxge_intr_type.intr_registered) {
3732 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
3733 		    "==> hxge_add_intrs: failed to register interrupts"));
3734 		return (HXGE_ERROR | HXGE_DDI_FAILED);
3735 	}
3736 
3737 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_add_intrs"));
3738 
3739 	return (status);
3740 }
3741 
3742 /*ARGSUSED*/
3743 static hxge_status_t
3744 hxge_add_intrs_adv(p_hxge_t hxgep)
3745 {
3746 	int		intr_type;
3747 	p_hxge_intr_t	intrp;
3748 	hxge_status_t	status;
3749 
3750 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs_adv"));
3751 
3752 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
3753 	intr_type = intrp->intr_type;
3754 
3755 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs_adv: type 0x%x",
3756 	    intr_type));
3757 
3758 	switch (intr_type) {
3759 	case DDI_INTR_TYPE_MSI:		/* 0x2 */
3760 	case DDI_INTR_TYPE_MSIX:	/* 0x4 */
3761 		status = hxge_add_intrs_adv_type(hxgep, intr_type);
3762 		break;
3763 
3764 	case DDI_INTR_TYPE_FIXED:	/* 0x1 */
3765 		status = hxge_add_intrs_adv_type_fix(hxgep, intr_type);
3766 		break;
3767 
3768 	default:
3769 		status = HXGE_ERROR;
3770 		break;
3771 	}
3772 
3773 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_add_intrs_adv"));
3774 
3775 	return (status);
3776 }
3777 
3778 /*ARGSUSED*/
3779 static hxge_status_t
3780 hxge_add_intrs_adv_type(p_hxge_t hxgep, uint32_t int_type)
3781 {
3782 	dev_info_t	*dip = hxgep->dip;
3783 	p_hxge_ldg_t	ldgp;
3784 	p_hxge_intr_t	intrp;
3785 	uint_t		*inthandler;
3786 	void		*arg1, *arg2;
3787 	int		behavior;
3788 	int		nintrs, navail;
3789 	int		nactual, nrequired, nrequest;
3790 	int		inum = 0;
3791 	int		loop = 0;
3792 	int		x, y;
3793 	int		ddi_status = DDI_SUCCESS;
3794 	hxge_status_t	status = HXGE_OK;
3795 
3796 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs_adv_type"));
3797 
3798 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
3799 
3800 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
3801 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
3802 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
3803 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
3804 		    "nintrs: %d", ddi_status, nintrs));
3805 		return (HXGE_ERROR | HXGE_DDI_FAILED);
3806 	}
3807 
3808 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
3809 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
3810 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
3811 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
3812 		    "nintrs: %d", ddi_status, navail));
3813 		return (HXGE_ERROR | HXGE_DDI_FAILED);
3814 	}
3815 
3816 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
3817 	    "ddi_intr_get_navail() returned: intr type %d nintrs %d, navail %d",
3818 	    int_type, nintrs, navail));
3819 
3820 	/* PSARC/2007/453 MSI-X interrupt limit override */
3821 	if (int_type == DDI_INTR_TYPE_MSIX) {
3822 		nrequest = hxge_create_msi_property(hxgep);
3823 		if (nrequest < navail) {
3824 			navail = nrequest;
3825 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
3826 			    "hxge_add_intrs_adv_type: nintrs %d "
3827 			    "navail %d (nrequest %d)",
3828 			    nintrs, navail, nrequest));
3829 		}
3830 	}
3831 
3832 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
3833 		/* MSI must be power of 2 */
3834 		if ((navail & 16) == 16) {
3835 			navail = 16;
3836 		} else if ((navail & 8) == 8) {
3837 			navail = 8;
3838 		} else if ((navail & 4) == 4) {
3839 			navail = 4;
3840 		} else if ((navail & 2) == 2) {
3841 			navail = 2;
3842 		} else {
3843 			navail = 1;
3844 		}
3845 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
3846 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
3847 		    "navail %d", nintrs, navail));
3848 	}
3849 
3850 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
3851 	    "requesting: intr type %d nintrs %d, navail %d",
3852 	    int_type, nintrs, navail));
3853 
3854 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
3855 	    DDI_INTR_ALLOC_NORMAL);
3856 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
3857 	intrp->htable = kmem_zalloc(intrp->intr_size, KM_SLEEP);
3858 
3859 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
3860 	    navail, &nactual, behavior);
3861 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
3862 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
3863 		    " ddi_intr_alloc() failed: %d", ddi_status));
3864 		kmem_free(intrp->htable, intrp->intr_size);
3865 		return (HXGE_ERROR | HXGE_DDI_FAILED);
3866 	}
3867 
3868 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
3869 	    "ddi_intr_alloc() returned: navail %d nactual %d",
3870 	    navail, nactual));
3871 
3872 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
3873 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
3874 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
3875 		    " ddi_intr_get_pri() failed: %d", ddi_status));
3876 		/* Free already allocated interrupts */
3877 		for (y = 0; y < nactual; y++) {
3878 			(void) ddi_intr_free(intrp->htable[y]);
3879 		}
3880 
3881 		kmem_free(intrp->htable, intrp->intr_size);
3882 		return (HXGE_ERROR | HXGE_DDI_FAILED);
3883 	}
3884 
3885 	nrequired = 0;
3886 	status = hxge_ldgv_init(hxgep, &nactual, &nrequired);
3887 	if (status != HXGE_OK) {
3888 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
3889 		    "hxge_add_intrs_adv_typ:hxge_ldgv_init "
3890 		    "failed: 0x%x", status));
3891 		/* Free already allocated interrupts */
3892 		for (y = 0; y < nactual; y++) {
3893 			(void) ddi_intr_free(intrp->htable[y]);
3894 		}
3895 
3896 		kmem_free(intrp->htable, intrp->intr_size);
3897 		return (status);
3898 	}
3899 
3900 	ldgp = hxgep->ldgvp->ldgp;
3901 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
3902 	    "After hxge_ldgv_init(): nreq %d nactual %d", nrequired, nactual));
3903 
3904 	if (nactual < nrequired)
3905 		loop = nactual;
3906 	else
3907 		loop = nrequired;
3908 
3909 	for (x = 0; x < loop; x++, ldgp++) {
3910 		ldgp->vector = (uint8_t)x;
3911 		arg1 = ldgp->ldvp;
3912 		arg2 = hxgep;
3913 		if (ldgp->nldvs == 1) {
3914 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
3915 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
3916 			    "hxge_add_intrs_adv_type: arg1 0x%x arg2 0x%x: "
3917 			    "1-1 int handler (entry %d)\n",
3918 			    arg1, arg2, x));
3919 		} else if (ldgp->nldvs > 1) {
3920 			inthandler = (uint_t *)ldgp->sys_intr_handler;
3921 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
3922 			    "hxge_add_intrs_adv_type: arg1 0x%x arg2 0x%x: "
3923 			    "nldevs %d int handler (entry %d)\n",
3924 			    arg1, arg2, ldgp->nldvs, x));
3925 		}
3926 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
3927 		    "==> hxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
3928 		    "htable 0x%llx", x, intrp->htable[x]));
3929 
3930 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
3931 		    (ddi_intr_handler_t *)inthandler, arg1, arg2)) !=
3932 		    DDI_SUCCESS) {
3933 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
3934 			    "==> hxge_add_intrs_adv_type: failed #%d "
3935 			    "status 0x%x", x, ddi_status));
3936 			for (y = 0; y < intrp->intr_added; y++) {
3937 				(void) ddi_intr_remove_handler(
3938 				    intrp->htable[y]);
3939 			}
3940 
3941 			/* Free already allocated intr */
3942 			for (y = 0; y < nactual; y++) {
3943 				(void) ddi_intr_free(intrp->htable[y]);
3944 			}
3945 			kmem_free(intrp->htable, intrp->intr_size);
3946 
3947 			(void) hxge_ldgv_uninit(hxgep);
3948 
3949 			return (HXGE_ERROR | HXGE_DDI_FAILED);
3950 		}
3951 
3952 		ldgp->htable_idx = x;
3953 		intrp->intr_added++;
3954 	}
3955 	intrp->msi_intx_cnt = nactual;
3956 
3957 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
3958 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
3959 	    navail, nactual, intrp->msi_intx_cnt, intrp->intr_added));
3960 
3961 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
3962 	(void) hxge_intr_ldgv_init(hxgep);
3963 
3964 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_add_intrs_adv_type"));
3965 
3966 	return (status);
3967 }
3968 
3969 /*ARGSUSED*/
3970 static hxge_status_t
3971 hxge_add_intrs_adv_type_fix(p_hxge_t hxgep, uint32_t int_type)
3972 {
3973 	dev_info_t	*dip = hxgep->dip;
3974 	p_hxge_ldg_t	ldgp;
3975 	p_hxge_intr_t	intrp;
3976 	uint_t		*inthandler;
3977 	void		*arg1, *arg2;
3978 	int		behavior;
3979 	int		nintrs, navail;
3980 	int		nactual, nrequired;
3981 	int		inum = 0;
3982 	int		x, y;
3983 	int		ddi_status = DDI_SUCCESS;
3984 	hxge_status_t	status = HXGE_OK;
3985 
3986 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs_adv_type_fix"));
3987 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
3988 
3989 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
3990 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
3991 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
3992 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
3993 		    "nintrs: %d", status, nintrs));
3994 		return (HXGE_ERROR | HXGE_DDI_FAILED);
3995 	}
3996 
3997 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
3998 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
3999 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
4000 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
4001 		    "nintrs: %d", ddi_status, navail));
4002 		return (HXGE_ERROR | HXGE_DDI_FAILED);
4003 	}
4004 
4005 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
4006 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
4007 	    nintrs, navail));
4008 
4009 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
4010 	    DDI_INTR_ALLOC_NORMAL);
4011 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
4012 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
4013 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
4014 	    navail, &nactual, behavior);
4015 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
4016 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
4017 		    " ddi_intr_alloc() failed: %d", ddi_status));
4018 		kmem_free(intrp->htable, intrp->intr_size);
4019 		return (HXGE_ERROR | HXGE_DDI_FAILED);
4020 	}
4021 
4022 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
4023 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
4024 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
4025 		    " ddi_intr_get_pri() failed: %d", ddi_status));
4026 		/* Free already allocated interrupts */
4027 		for (y = 0; y < nactual; y++) {
4028 			(void) ddi_intr_free(intrp->htable[y]);
4029 		}
4030 
4031 		kmem_free(intrp->htable, intrp->intr_size);
4032 		return (HXGE_ERROR | HXGE_DDI_FAILED);
4033 	}
4034 
4035 	nrequired = 0;
4036 	status = hxge_ldgv_init(hxgep, &nactual, &nrequired);
4037 	if (status != HXGE_OK) {
4038 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
4039 		    "hxge_add_intrs_adv_type_fix:hxge_ldgv_init "
4040 		    "failed: 0x%x", status));
4041 		/* Free already allocated interrupts */
4042 		for (y = 0; y < nactual; y++) {
4043 			(void) ddi_intr_free(intrp->htable[y]);
4044 		}
4045 
4046 		kmem_free(intrp->htable, intrp->intr_size);
4047 		return (status);
4048 	}
4049 
4050 	ldgp = hxgep->ldgvp->ldgp;
4051 	for (x = 0; x < nrequired; x++, ldgp++) {
4052 		ldgp->vector = (uint8_t)x;
4053 		arg1 = ldgp->ldvp;
4054 		arg2 = hxgep;
4055 		if (ldgp->nldvs == 1) {
4056 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
4057 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
4058 			    "hxge_add_intrs_adv_type_fix: "
4059 			    "1-1 int handler(%d) ldg %d ldv %d "
4060 			    "arg1 $%p arg2 $%p\n",
4061 			    x, ldgp->ldg, ldgp->ldvp->ldv, arg1, arg2));
4062 		} else if (ldgp->nldvs > 1) {
4063 			inthandler = (uint_t *)ldgp->sys_intr_handler;
4064 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
4065 			    "hxge_add_intrs_adv_type_fix: "
4066 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
4067 			    "arg1 0x%016llx arg2 0x%016llx\n",
4068 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
4069 			    arg1, arg2));
4070 		}
4071 
4072 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
4073 		    (ddi_intr_handler_t *)inthandler, arg1, arg2)) !=
4074 		    DDI_SUCCESS) {
4075 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
4076 			    "==> hxge_add_intrs_adv_type_fix: failed #%d "
4077 			    "status 0x%x", x, ddi_status));
4078 			for (y = 0; y < intrp->intr_added; y++) {
4079 				(void) ddi_intr_remove_handler(
4080 				    intrp->htable[y]);
4081 			}
4082 			for (y = 0; y < nactual; y++) {
4083 				(void) ddi_intr_free(intrp->htable[y]);
4084 			}
4085 			/* Free already allocated intr */
4086 			kmem_free(intrp->htable, intrp->intr_size);
4087 
4088 			(void) hxge_ldgv_uninit(hxgep);
4089 
4090 			return (HXGE_ERROR | HXGE_DDI_FAILED);
4091 		}
4092 		intrp->intr_added++;
4093 	}
4094 
4095 	intrp->msi_intx_cnt = nactual;
4096 
4097 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
4098 
4099 	status = hxge_intr_ldgv_init(hxgep);
4100 
4101 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_add_intrs_adv_type_fix"));
4102 
4103 	return (status);
4104 }
4105 
4106 /*ARGSUSED*/
4107 static void
4108 hxge_remove_intrs(p_hxge_t hxgep)
4109 {
4110 	int		i, inum;
4111 	p_hxge_intr_t	intrp;
4112 
4113 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_remove_intrs"));
4114 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
4115 	if (!intrp->intr_registered) {
4116 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
4117 		    "<== hxge_remove_intrs: interrupts not registered"));
4118 		return;
4119 	}
4120 
4121 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_remove_intrs:advanced"));
4122 
4123 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
4124 		(void) ddi_intr_block_disable(intrp->htable,
4125 		    intrp->intr_added);
4126 	} else {
4127 		for (i = 0; i < intrp->intr_added; i++) {
4128 			(void) ddi_intr_disable(intrp->htable[i]);
4129 		}
4130 	}
4131 
4132 	for (inum = 0; inum < intrp->intr_added; inum++) {
4133 		if (intrp->htable[inum]) {
4134 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
4135 		}
4136 	}
4137 
4138 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
4139 		if (intrp->htable[inum]) {
4140 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
4141 			    "hxge_remove_intrs: ddi_intr_free inum %d "
4142 			    "msi_intx_cnt %d intr_added %d",
4143 			    inum, intrp->msi_intx_cnt, intrp->intr_added));
4144 
4145 			(void) ddi_intr_free(intrp->htable[inum]);
4146 		}
4147 	}
4148 
4149 	kmem_free(intrp->htable, intrp->intr_size);
4150 	intrp->intr_registered = B_FALSE;
4151 	intrp->intr_enabled = B_FALSE;
4152 	intrp->msi_intx_cnt = 0;
4153 	intrp->intr_added = 0;
4154 
4155 	(void) hxge_ldgv_uninit(hxgep);
4156 
4157 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_remove_intrs"));
4158 }
4159 
4160 /*ARGSUSED*/
4161 static void
4162 hxge_intrs_enable(p_hxge_t hxgep)
4163 {
4164 	p_hxge_intr_t	intrp;
4165 	int		i;
4166 	int		status;
4167 
4168 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intrs_enable"));
4169 
4170 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
4171 
4172 	if (!intrp->intr_registered) {
4173 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "<== hxge_intrs_enable: "
4174 		    "interrupts are not registered"));
4175 		return;
4176 	}
4177 
4178 	if (intrp->intr_enabled) {
4179 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
4180 		    "<== hxge_intrs_enable: already enabled"));
4181 		return;
4182 	}
4183 
4184 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
4185 		status = ddi_intr_block_enable(intrp->htable,
4186 		    intrp->intr_added);
4187 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intrs_enable "
4188 		    "block enable - status 0x%x total inums #%d\n",
4189 		    status, intrp->intr_added));
4190 	} else {
4191 		for (i = 0; i < intrp->intr_added; i++) {
4192 			status = ddi_intr_enable(intrp->htable[i]);
4193 			HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intrs_enable "
4194 			    "ddi_intr_enable:enable - status 0x%x "
4195 			    "total inums %d enable inum #%d\n",
4196 			    status, intrp->intr_added, i));
4197 			if (status == DDI_SUCCESS) {
4198 				intrp->intr_enabled = B_TRUE;
4199 			}
4200 		}
4201 	}
4202 
4203 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intrs_enable"));
4204 }
4205 
4206 /*ARGSUSED*/
4207 static void
4208 hxge_intrs_disable(p_hxge_t hxgep)
4209 {
4210 	p_hxge_intr_t	intrp;
4211 	int		i;
4212 
4213 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intrs_disable"));
4214 
4215 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
4216 
4217 	if (!intrp->intr_registered) {
4218 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intrs_disable: "
4219 		    "interrupts are not registered"));
4220 		return;
4221 	}
4222 
4223 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
4224 		(void) ddi_intr_block_disable(intrp->htable,
4225 		    intrp->intr_added);
4226 	} else {
4227 		for (i = 0; i < intrp->intr_added; i++) {
4228 			(void) ddi_intr_disable(intrp->htable[i]);
4229 		}
4230 	}
4231 
4232 	intrp->intr_enabled = B_FALSE;
4233 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intrs_disable"));
4234 }
4235 
4236 static hxge_status_t
4237 hxge_mac_register(p_hxge_t hxgep)
4238 {
4239 	mac_register_t	*macp;
4240 	int		status;
4241 
4242 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_mac_register"));
4243 
4244 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
4245 		return (HXGE_ERROR);
4246 
4247 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
4248 	macp->m_driver = hxgep;
4249 	macp->m_dip = hxgep->dip;
4250 	macp->m_src_addr = hxgep->ouraddr.ether_addr_octet;
4251 	macp->m_callbacks = &hxge_m_callbacks;
4252 	macp->m_min_sdu = 0;
4253 	macp->m_max_sdu = hxgep->vmac.maxframesize - MTU_TO_FRAME_SIZE;
4254 	macp->m_margin = VLAN_TAGSZ;
4255 	macp->m_priv_props = hxge_priv_props;
4256 	macp->m_v12n = MAC_VIRT_LEVEL1;
4257 
4258 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
4259 	    "hxge_mac_register: ether addr is %x:%x:%x:%x:%x:%x",
4260 	    macp->m_src_addr[0],
4261 	    macp->m_src_addr[1],
4262 	    macp->m_src_addr[2],
4263 	    macp->m_src_addr[3],
4264 	    macp->m_src_addr[4],
4265 	    macp->m_src_addr[5]));
4266 
4267 	status = mac_register(macp, &hxgep->mach);
4268 	mac_free(macp);
4269 
4270 	if (status != 0) {
4271 		cmn_err(CE_WARN,
4272 		    "hxge_mac_register failed (status %d instance %d)",
4273 		    status, hxgep->instance);
4274 		return (HXGE_ERROR);
4275 	}
4276 
4277 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_mac_register success "
4278 	    "(instance %d)", hxgep->instance));
4279 
4280 	return (HXGE_OK);
4281 }
4282 
4283 static int
4284 hxge_init_common_dev(p_hxge_t hxgep)
4285 {
4286 	p_hxge_hw_list_t	hw_p;
4287 	dev_info_t		*p_dip;
4288 
4289 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "==> hxge_init_common_dev"));
4290 
4291 	p_dip = hxgep->p_dip;
4292 	MUTEX_ENTER(&hxge_common_lock);
4293 
4294 	/*
4295 	 * Loop through existing per Hydra hardware list.
4296 	 */
4297 	for (hw_p = hxge_hw_list; hw_p; hw_p = hw_p->next) {
4298 		HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4299 		    "==> hxge_init_common_dev: hw_p $%p parent dip $%p",
4300 		    hw_p, p_dip));
4301 		if (hw_p->parent_devp == p_dip) {
4302 			hxgep->hxge_hw_p = hw_p;
4303 			hw_p->ndevs++;
4304 			hw_p->hxge_p = hxgep;
4305 			HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4306 			    "==> hxge_init_common_device: "
4307 			    "hw_p $%p parent dip $%p ndevs %d (found)",
4308 			    hw_p, p_dip, hw_p->ndevs));
4309 			break;
4310 		}
4311 	}
4312 
4313 	if (hw_p == NULL) {
4314 		HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4315 		    "==> hxge_init_common_dev: parent dip $%p (new)", p_dip));
4316 		hw_p = kmem_zalloc(sizeof (hxge_hw_list_t), KM_SLEEP);
4317 		hw_p->parent_devp = p_dip;
4318 		hw_p->magic = HXGE_MAGIC;
4319 		hxgep->hxge_hw_p = hw_p;
4320 		hw_p->ndevs++;
4321 		hw_p->hxge_p = hxgep;
4322 		hw_p->next = hxge_hw_list;
4323 
4324 		MUTEX_INIT(&hw_p->hxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
4325 		MUTEX_INIT(&hw_p->hxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
4326 		MUTEX_INIT(&hw_p->hxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
4327 
4328 		hxge_hw_list = hw_p;
4329 	}
4330 	MUTEX_EXIT(&hxge_common_lock);
4331 	HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4332 	    "==> hxge_init_common_dev (hxge_hw_list) $%p", hxge_hw_list));
4333 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "<== hxge_init_common_dev"));
4334 
4335 	return (HXGE_OK);
4336 }
4337 
4338 static void
4339 hxge_uninit_common_dev(p_hxge_t hxgep)
4340 {
4341 	p_hxge_hw_list_t	hw_p, h_hw_p;
4342 	dev_info_t		*p_dip;
4343 
4344 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "==> hxge_uninit_common_dev"));
4345 	if (hxgep->hxge_hw_p == NULL) {
4346 		HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4347 		    "<== hxge_uninit_common_dev (no common)"));
4348 		return;
4349 	}
4350 
4351 	MUTEX_ENTER(&hxge_common_lock);
4352 	h_hw_p = hxge_hw_list;
4353 	for (hw_p = hxge_hw_list; hw_p; hw_p = hw_p->next) {
4354 		p_dip = hw_p->parent_devp;
4355 		if (hxgep->hxge_hw_p == hw_p && p_dip == hxgep->p_dip &&
4356 		    hxgep->hxge_hw_p->magic == HXGE_MAGIC &&
4357 		    hw_p->magic == HXGE_MAGIC) {
4358 			HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4359 			    "==> hxge_uninit_common_dev: "
4360 			    "hw_p $%p parent dip $%p ndevs %d (found)",
4361 			    hw_p, p_dip, hw_p->ndevs));
4362 
4363 			hxgep->hxge_hw_p = NULL;
4364 			if (hw_p->ndevs) {
4365 				hw_p->ndevs--;
4366 			}
4367 			hw_p->hxge_p = NULL;
4368 			if (!hw_p->ndevs) {
4369 				MUTEX_DESTROY(&hw_p->hxge_vlan_lock);
4370 				MUTEX_DESTROY(&hw_p->hxge_tcam_lock);
4371 				MUTEX_DESTROY(&hw_p->hxge_cfg_lock);
4372 				HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4373 				    "==> hxge_uninit_common_dev: "
4374 				    "hw_p $%p parent dip $%p ndevs %d (last)",
4375 				    hw_p, p_dip, hw_p->ndevs));
4376 
4377 				if (hw_p == hxge_hw_list) {
4378 					HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4379 					    "==> hxge_uninit_common_dev:"
4380 					    "remove head "
4381 					    "hw_p $%p parent dip $%p "
4382 					    "ndevs %d (head)",
4383 					    hw_p, p_dip, hw_p->ndevs));
4384 					hxge_hw_list = hw_p->next;
4385 				} else {
4386 					HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4387 					    "==> hxge_uninit_common_dev:"
4388 					    "remove middle "
4389 					    "hw_p $%p parent dip $%p "
4390 					    "ndevs %d (middle)",
4391 					    hw_p, p_dip, hw_p->ndevs));
4392 					h_hw_p->next = hw_p->next;
4393 				}
4394 
4395 				KMEM_FREE(hw_p, sizeof (hxge_hw_list_t));
4396 			}
4397 			break;
4398 		} else {
4399 			h_hw_p = hw_p;
4400 		}
4401 	}
4402 
4403 	MUTEX_EXIT(&hxge_common_lock);
4404 	HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4405 	    "==> hxge_uninit_common_dev (hxge_hw_list) $%p", hxge_hw_list));
4406 
4407 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "<= hxge_uninit_common_dev"));
4408 }
4409 
4410 #define	HXGE_MSIX_ENTRIES		32
4411 #define	HXGE_MSIX_WAIT_COUNT		10
4412 #define	HXGE_MSIX_PARITY_CHECK_COUNT	30
4413 
4414 static void
4415 hxge_link_poll(void *arg)
4416 {
4417 	p_hxge_t		hxgep = (p_hxge_t)arg;
4418 	hpi_handle_t		handle;
4419 	cip_link_stat_t		link_stat;
4420 	hxge_timeout		*to = &hxgep->timeout;
4421 
4422 	handle = HXGE_DEV_HPI_HANDLE(hxgep);
4423 	HXGE_REG_RD32(handle, CIP_LINK_STAT, &link_stat.value);
4424 
4425 	if (to->report_link_status ||
4426 	    (to->link_status != link_stat.bits.xpcs0_link_up)) {
4427 		to->link_status = link_stat.bits.xpcs0_link_up;
4428 		to->report_link_status = B_FALSE;
4429 
4430 		if (link_stat.bits.xpcs0_link_up) {
4431 			hxge_link_update(hxgep, LINK_STATE_UP);
4432 		} else {
4433 			hxge_link_update(hxgep, LINK_STATE_DOWN);
4434 		}
4435 	}
4436 
4437 	/* Restart the link status timer to check the link status */
4438 	MUTEX_ENTER(&to->lock);
4439 	to->id = timeout(hxge_link_poll, arg, to->ticks);
4440 	MUTEX_EXIT(&to->lock);
4441 }
4442 
4443 static void
4444 hxge_link_update(p_hxge_t hxgep, link_state_t state)
4445 {
4446 	p_hxge_stats_t		statsp = (p_hxge_stats_t)hxgep->statsp;
4447 
4448 	mac_link_update(hxgep->mach, state);
4449 	if (state == LINK_STATE_UP) {
4450 		statsp->mac_stats.link_speed = 10000;
4451 		statsp->mac_stats.link_duplex = 2;
4452 		statsp->mac_stats.link_up = 1;
4453 	} else {
4454 		statsp->mac_stats.link_speed = 0;
4455 		statsp->mac_stats.link_duplex = 0;
4456 		statsp->mac_stats.link_up = 0;
4457 	}
4458 }
4459 
4460 static void
4461 hxge_msix_init(p_hxge_t hxgep)
4462 {
4463 	uint32_t 		data0;
4464 	uint32_t 		data1;
4465 	uint32_t 		data2;
4466 	int			i;
4467 	uint32_t		msix_entry0;
4468 	uint32_t		msix_entry1;
4469 	uint32_t		msix_entry2;
4470 	uint32_t		msix_entry3;
4471 
4472 	/* Change to use MSIx bar instead of indirect access */
4473 	for (i = 0; i < HXGE_MSIX_ENTRIES; i++) {
4474 		data0 = 0xffffffff - i;
4475 		data1 = 0xffffffff - i - 1;
4476 		data2 = 0xffffffff - i - 2;
4477 
4478 		HXGE_REG_WR32(hxgep->hpi_msi_handle, i * 16, data0);
4479 		HXGE_REG_WR32(hxgep->hpi_msi_handle, i * 16 + 4, data1);
4480 		HXGE_REG_WR32(hxgep->hpi_msi_handle, i * 16 + 8, data2);
4481 		HXGE_REG_WR32(hxgep->hpi_msi_handle, i * 16 + 12, 0);
4482 	}
4483 
4484 	/* Initialize ram data out buffer. */
4485 	for (i = 0; i < HXGE_MSIX_ENTRIES; i++) {
4486 		HXGE_REG_RD32(hxgep->hpi_msi_handle, i * 16, &msix_entry0);
4487 		HXGE_REG_RD32(hxgep->hpi_msi_handle, i * 16 + 4, &msix_entry1);
4488 		HXGE_REG_RD32(hxgep->hpi_msi_handle, i * 16 + 8, &msix_entry2);
4489 		HXGE_REG_RD32(hxgep->hpi_msi_handle, i * 16 + 12, &msix_entry3);
4490 	}
4491 }
4492 
4493 /*
4494  * The following function is to support
4495  * PSARC/2007/453 MSI-X interrupt limit override.
4496  */
4497 static int
4498 hxge_create_msi_property(p_hxge_t hxgep)
4499 {
4500 	int	nmsi;
4501 	extern	int ncpus;
4502 
4503 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "==>hxge_create_msi_property"));
4504 
4505 	(void) ddi_prop_create(DDI_DEV_T_NONE, hxgep->dip,
4506 	    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
4507 	/*
4508 	 * The maximum MSI-X requested will be 8.
4509 	 * If the # of CPUs is less than 8, we will reqeust
4510 	 * # MSI-X based on the # of CPUs.
4511 	 */
4512 	if (ncpus >= HXGE_MSIX_REQUEST_10G) {
4513 		nmsi = HXGE_MSIX_REQUEST_10G;
4514 	} else {
4515 		nmsi = ncpus;
4516 	}
4517 
4518 	HXGE_DEBUG_MSG((hxgep, MOD_CTL,
4519 	    "==>hxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
4520 	    ddi_prop_exists(DDI_DEV_T_NONE, hxgep->dip,
4521 	    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
4522 
4523 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "<==hxge_create_msi_property"));
4524 	return (nmsi);
4525 }
4526