xref: /titanic_44/usr/src/uts/common/io/hxge/hxge_virtual.c (revision e4b86885570d77af552e9cf94f142f4d744fb8c8)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <hxge_impl.h>
27 #include <hxge_vmac.h>
28 #include <hxge_pfc.h>
29 #include <hpi_pfc.h>
30 
31 static hxge_status_t hxge_get_mac_addr_properties(p_hxge_t);
32 static void hxge_use_cfg_hydra_properties(p_hxge_t);
33 static void hxge_use_cfg_dma_config(p_hxge_t);
34 static void hxge_use_cfg_class_config(p_hxge_t);
35 static void hxge_set_hw_dma_config(p_hxge_t);
36 static void hxge_set_hw_class_config(p_hxge_t);
37 static void hxge_ldgv_setup(p_hxge_ldg_t *ldgp, p_hxge_ldv_t *ldvp, uint8_t ldv,
38 	uint8_t endldg, int *ngrps);
39 static hxge_status_t hxge_mmac_init(p_hxge_t);
40 
41 extern uint16_t hxge_rcr_timeout;
42 extern uint16_t hxge_rcr_threshold;
43 
44 extern uint32_t hxge_rbr_size;
45 extern uint32_t hxge_rcr_size;
46 
47 extern uint_t hxge_rx_intr();
48 extern uint_t hxge_tx_intr();
49 extern uint_t hxge_vmac_intr();
50 extern uint_t hxge_syserr_intr();
51 extern uint_t hxge_pfc_intr();
52 
53 uint_t hxge_nmac_intr(caddr_t arg1, caddr_t arg2);
54 
55 /*
56  * Entry point to populate configuration parameters into the master hxge
57  * data structure and to update the NDD parameter list.
58  */
59 hxge_status_t
60 hxge_get_config_properties(p_hxge_t hxgep)
61 {
62 	hxge_status_t		status = HXGE_OK;
63 
64 	HXGE_DEBUG_MSG((hxgep, VPD_CTL, " ==> hxge_get_config_properties"));
65 
66 	if (hxgep->hxge_hw_p == NULL) {
67 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
68 		    " hxge_get_config_properties: common hardware not set"));
69 		return (HXGE_ERROR);
70 	}
71 
72 	hxgep->classifier.tcam_size = TCAM_HXGE_TCAM_MAX_ENTRY;
73 
74 	status = hxge_get_mac_addr_properties(hxgep);
75 	if (status != HXGE_OK) {
76 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
77 		    " hxge_get_config_properties: mac addr properties failed"));
78 		return (status);
79 	}
80 
81 	HXGE_DEBUG_MSG((hxgep, VPD_CTL,
82 	    " ==> hxge_get_config_properties: Hydra"));
83 
84 	hxge_use_cfg_hydra_properties(hxgep);
85 
86 	HXGE_DEBUG_MSG((hxgep, VPD_CTL, " <== hxge_get_config_properties"));
87 	return (HXGE_OK);
88 }
89 
90 
91 static void
92 hxge_set_hw_vlan_class_config(p_hxge_t hxgep)
93 {
94 	int			i;
95 	p_hxge_param_t		param_arr;
96 	uint_t			vlan_cnt;
97 	int			*vlan_cfg_val;
98 	hxge_param_map_t	*vmap;
99 	char			*prop;
100 	p_hxge_class_pt_cfg_t 	p_class_cfgp;
101 	uint32_t		good_cfg[32];
102 	int			good_count = 0;
103 	hxge_mv_cfg_t		*vlan_tbl;
104 
105 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " ==> hxge_set_hw_vlan_config"));
106 	p_class_cfgp = (p_hxge_class_pt_cfg_t)&hxgep->class_config;
107 
108 	param_arr = hxgep->param_arr;
109 	prop = param_arr[param_vlan_ids].fcode_name;
110 
111 	/*
112 	 * uint32_t array, each array entry specifying a VLAN id
113 	 */
114 	for (i = 0; i <= VLAN_ID_MAX; i++) {
115 		p_class_cfgp->vlan_tbl[i].flag = 0;
116 	}
117 
118 	vlan_tbl = (hxge_mv_cfg_t *)&p_class_cfgp->vlan_tbl[0];
119 	if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, hxgep->dip, 0, prop,
120 	    &vlan_cfg_val, &vlan_cnt) != DDI_PROP_SUCCESS) {
121 		return;
122 	}
123 
124 	for (i = 0; i < vlan_cnt; i++) {
125 		vmap = (hxge_param_map_t *)&vlan_cfg_val[i];
126 		if ((vmap->param_id) && (vmap->param_id <= VLAN_ID_MAX)) {
127 			HXGE_DEBUG_MSG((hxgep, CFG2_CTL,
128 			    " hxge_vlan_config vlan id %d", vmap->param_id));
129 
130 			good_cfg[good_count] = vlan_cfg_val[i];
131 			if (vlan_tbl[vmap->param_id].flag == 0)
132 				good_count++;
133 
134 			vlan_tbl[vmap->param_id].flag = 1;
135 		}
136 	}
137 
138 	ddi_prop_free(vlan_cfg_val);
139 	if (good_count != vlan_cnt) {
140 		(void) ddi_prop_update_int_array(DDI_DEV_T_NONE,
141 		    hxgep->dip, prop, (int *)good_cfg, good_count);
142 	}
143 
144 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " <== hxge_set_hw_vlan_config"));
145 }
146 
147 
148 /*
149  * Read param_vlan_ids and param_implicit_vlan_id properties from either
150  * hxge.conf or OBP. Update the soft properties. Populate these
151  * properties into the hxge data structure.
152  */
153 static void
154 hxge_use_cfg_vlan_class_config(p_hxge_t hxgep)
155 {
156 	uint_t		vlan_cnt;
157 	int		*vlan_cfg_val;
158 	int		status;
159 	p_hxge_param_t	param_arr;
160 	char		*prop;
161 	uint32_t	implicit_vlan_id = 0;
162 	int		*int_prop_val;
163 	uint_t		prop_len;
164 	p_hxge_param_t	pa;
165 
166 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " ==> hxge_use_cfg_vlan_config"));
167 	param_arr = hxgep->param_arr;
168 	prop = param_arr[param_vlan_ids].fcode_name;
169 
170 	status = ddi_prop_lookup_int_array(DDI_DEV_T_ANY, hxgep->dip, 0, prop,
171 	    &vlan_cfg_val, &vlan_cnt);
172 	if (status == DDI_PROP_SUCCESS) {
173 		status = ddi_prop_update_int_array(DDI_DEV_T_NONE,
174 		    hxgep->dip, prop, vlan_cfg_val, vlan_cnt);
175 		ddi_prop_free(vlan_cfg_val);
176 	}
177 
178 	pa = &param_arr[param_implicit_vlan_id];
179 	prop = pa->fcode_name;
180 	if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, hxgep->dip, 0, prop,
181 	    &int_prop_val, &prop_len) == DDI_PROP_SUCCESS) {
182 		implicit_vlan_id = (uint32_t)*int_prop_val;
183 		if ((implicit_vlan_id >= pa->minimum) ||
184 		    (implicit_vlan_id <= pa->maximum)) {
185 			status = ddi_prop_update_int(DDI_DEV_T_NONE, hxgep->dip,
186 			    prop, (int)implicit_vlan_id);
187 		}
188 		ddi_prop_free(int_prop_val);
189 	}
190 
191 	hxge_set_hw_vlan_class_config(hxgep);
192 
193 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " <== hxge_use_cfg_vlan_config"));
194 }
195 
196 /*
197  * Read in the configuration parameters from either hxge.conf or OBP and
198  * populate the master data structure hxge.
199  * Use these parameters to update the soft properties and the ndd array.
200  */
201 static void
202 hxge_use_cfg_hydra_properties(p_hxge_t hxgep)
203 {
204 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " ==> hxge_use_cfg_hydra_properties"));
205 
206 	(void) hxge_use_cfg_dma_config(hxgep);
207 	(void) hxge_use_cfg_vlan_class_config(hxgep);
208 	(void) hxge_use_cfg_class_config(hxgep);
209 
210 	/*
211 	 * Read in the hardware (fcode) properties and use these properties
212 	 * to update the ndd array.
213 	 */
214 	(void) hxge_get_param_soft_properties(hxgep);
215 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " <== hxge_use_cfg_hydra_properties"));
216 }
217 
218 
219 /*
220  * Read param_accept_jumbo, param_rxdma_intr_time, and param_rxdma_intr_pkts
221  * from either hxge.conf or OBP.
222  * Update the soft properties.
223  * Populate these properties into the hxge data structure for latter use.
224  */
225 static void
226 hxge_use_cfg_dma_config(p_hxge_t hxgep)
227 {
228 	int			tx_ndmas, rx_ndmas;
229 	p_hxge_dma_pt_cfg_t	p_dma_cfgp;
230 	p_hxge_hw_pt_cfg_t	p_cfgp;
231 	dev_info_t		*dip;
232 	p_hxge_param_t		param_arr;
233 	char			*prop;
234 	int 			*prop_val;
235 	uint_t 			prop_len;
236 
237 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " ==> hxge_use_cfg_dma_config"));
238 	param_arr = hxgep->param_arr;
239 
240 	p_dma_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
241 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
242 	dip = hxgep->dip;
243 
244 	tx_ndmas = 4;
245 	p_cfgp->start_tdc = 0;
246 	p_cfgp->max_tdcs =  hxgep->max_tdcs = tx_ndmas;
247 	hxgep->tdc_mask = (tx_ndmas - 1);
248 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, "==> hxge_use_cfg_dma_config: "
249 	    "p_cfgp 0x%llx max_tdcs %d hxgep->max_tdcs %d",
250 	    p_cfgp, p_cfgp->max_tdcs, hxgep->max_tdcs));
251 
252 	rx_ndmas = 4;
253 	p_cfgp->start_rdc = 0;
254 	p_cfgp->max_rdcs =  hxgep->max_rdcs = rx_ndmas;
255 
256 	p_cfgp->start_ldg = 0;
257 	p_cfgp->max_ldgs = HXGE_INT_MAX_LDG;
258 
259 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, "==> hxge_use_default_dma_config: "
260 	    "p_cfgp 0x%llx max_rdcs %d hxgep->max_rdcs %d",
261 	    p_cfgp, p_cfgp->max_rdcs, hxgep->max_rdcs));
262 
263 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, "==> hxge_use_cfg_dma_config: "
264 	    "p_cfgp 0x%016llx start_ldg %d hxgep->max_ldgs %d ",
265 	    p_cfgp, p_cfgp->start_ldg,  p_cfgp->max_ldgs));
266 
267 	/*
268 	 * add code for individual rdc properties
269 	 */
270 	prop = param_arr[param_accept_jumbo].fcode_name;
271 
272 	if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 0, prop,
273 	    &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
274 		if ((prop_len > 0) && (prop_len <= p_cfgp->max_rdcs)) {
275 			(void) ddi_prop_update_int_array(DDI_DEV_T_NONE,
276 			    hxgep->dip, prop, prop_val, prop_len);
277 		}
278 		ddi_prop_free(prop_val);
279 	}
280 
281 	prop = param_arr[param_rxdma_intr_time].fcode_name;
282 
283 	if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 0, prop,
284 	    &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
285 		if ((prop_len > 0) && (prop_len <= p_cfgp->max_rdcs)) {
286 			(void) ddi_prop_update_int_array(DDI_DEV_T_NONE,
287 			    hxgep->dip, prop, prop_val, prop_len);
288 		}
289 		ddi_prop_free(prop_val);
290 	}
291 
292 	prop = param_arr[param_rxdma_intr_pkts].fcode_name;
293 
294 	if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 0, prop,
295 	    &prop_val, &prop_len) == DDI_PROP_SUCCESS) {
296 		if ((prop_len > 0) && (prop_len <= p_cfgp->max_rdcs)) {
297 			(void) ddi_prop_update_int_array(DDI_DEV_T_NONE,
298 			    hxgep->dip, prop, prop_val, prop_len);
299 		}
300 		ddi_prop_free(prop_val);
301 	}
302 
303 	hxge_set_hw_dma_config(hxgep);
304 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, "<== hxge_use_cfg_dma_config"));
305 }
306 
307 static void
308 hxge_use_cfg_class_config(p_hxge_t hxgep)
309 {
310 	hxge_set_hw_class_config(hxgep);
311 }
312 
313 static void
314 hxge_set_hw_dma_config(p_hxge_t hxgep)
315 {
316 	p_hxge_dma_pt_cfg_t	p_dma_cfgp;
317 	p_hxge_hw_pt_cfg_t	p_cfgp;
318 
319 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, "==> hxge_set_hw_dma_config"));
320 
321 	p_dma_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
322 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
323 
324 	/* Transmit DMA Channels */
325 	hxgep->ntdc = p_cfgp->max_tdcs;
326 
327 	/* Receive DMA Channels */
328 	hxgep->nrdc = p_cfgp->max_rdcs;
329 
330 	p_dma_cfgp->rbr_size = hxge_rbr_size;
331 	p_dma_cfgp->rcr_size = hxge_rcr_size;
332 
333 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " <== hxge_set_hw_dma_config"));
334 }
335 
336 
337 boolean_t
338 hxge_check_rxdma_port_member(p_hxge_t hxgep, uint8_t rdc)
339 {
340 	p_hxge_dma_pt_cfg_t	p_dma_cfgp;
341 	p_hxge_hw_pt_cfg_t	p_cfgp;
342 	int			status = B_TRUE;
343 
344 	HXGE_DEBUG_MSG((hxgep, CFG2_CTL, "==> hxge_check_rxdma_port_member"));
345 
346 	p_dma_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
347 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
348 
349 	/* Receive DMA Channels */
350 	if (rdc < p_cfgp->max_rdcs)
351 		status = B_TRUE;
352 	HXGE_DEBUG_MSG((hxgep, CFG2_CTL, " <== hxge_check_rxdma_port_member"));
353 
354 	return (status);
355 }
356 
357 boolean_t
358 hxge_check_txdma_port_member(p_hxge_t hxgep, uint8_t tdc)
359 {
360 	p_hxge_dma_pt_cfg_t	p_dma_cfgp;
361 	p_hxge_hw_pt_cfg_t	p_cfgp;
362 	int			status = B_FALSE;
363 
364 	HXGE_DEBUG_MSG((hxgep, CFG2_CTL, "==> hxge_check_txdma_port_member"));
365 
366 	p_dma_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
367 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
368 
369 	/* Receive DMA Channels */
370 	if (tdc < p_cfgp->max_tdcs)
371 		status = B_TRUE;
372 	HXGE_DEBUG_MSG((hxgep, CFG2_CTL, " <== hxge_check_txdma_port_member"));
373 
374 	return (status);
375 }
376 
377 
378 /*
379  * Read the L2 classes, L3 classes, and initial hash from either hxge.conf
380  * or OBP. Populate these properties into the hxge data structure for latter
381  * use. Note that we are not updating these soft properties.
382  */
383 static void
384 hxge_set_hw_class_config(p_hxge_t hxgep)
385 {
386 	int			i, j;
387 	p_hxge_param_t		param_arr;
388 	int			*int_prop_val;
389 	uint32_t		cfg_value;
390 	char			*prop;
391 	p_hxge_class_pt_cfg_t	p_class_cfgp;
392 	int			start_prop, end_prop;
393 	uint_t			prop_cnt;
394 
395 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " ==> hxge_set_hw_class_config"));
396 
397 	p_class_cfgp = (p_hxge_class_pt_cfg_t)&hxgep->class_config;
398 
399 	param_arr = hxgep->param_arr;
400 
401 	/*
402 	 * L2 class configuration. User configurable ether types
403 	 */
404 	start_prop =  param_class_cfg_ether_usr1;
405 	end_prop = param_class_cfg_ether_usr2;
406 
407 	for (i = start_prop; i <= end_prop; i++) {
408 		prop = param_arr[i].fcode_name;
409 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, hxgep->dip,
410 		    0, prop, &int_prop_val, &prop_cnt) == DDI_PROP_SUCCESS) {
411 			cfg_value =  (uint32_t)*int_prop_val;
412 			ddi_prop_free(int_prop_val);
413 		} else {
414 			cfg_value = (uint32_t)param_arr[i].value;
415 		}
416 
417 		j = (i - start_prop) + TCAM_CLASS_ETYPE_1;
418 		p_class_cfgp->class_cfg[j] = cfg_value;
419 	}
420 
421 	/*
422 	 * Use properties from either .conf or the NDD param array. Only bits
423 	 * 2 and 3 are significant
424 	 */
425 	start_prop =  param_class_opt_ipv4_tcp;
426 	end_prop = param_class_opt_ipv6_sctp;
427 
428 	for (i = start_prop; i <= end_prop; i++) {
429 		prop = param_arr[i].fcode_name;
430 		if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, hxgep->dip,
431 		    0, prop, &int_prop_val, &prop_cnt) == DDI_PROP_SUCCESS) {
432 			cfg_value =  (uint32_t)*int_prop_val;
433 			ddi_prop_free(int_prop_val);
434 		} else {
435 			cfg_value = (uint32_t)param_arr[i].value;
436 		}
437 
438 		j = (i - start_prop) + TCAM_CLASS_TCP_IPV4;
439 		p_class_cfgp->class_cfg[j] = cfg_value;
440 	}
441 
442 	prop = param_arr[param_hash_init_value].fcode_name;
443 
444 	if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, hxgep->dip, 0, prop,
445 	    &int_prop_val, &prop_cnt) == DDI_PROP_SUCCESS) {
446 		cfg_value =  (uint32_t)*int_prop_val;
447 		ddi_prop_free(int_prop_val);
448 	} else {
449 		cfg_value = (uint32_t)param_arr[param_hash_init_value].value;
450 	}
451 
452 	p_class_cfgp->init_hash = (uint32_t)cfg_value;
453 
454 	HXGE_DEBUG_MSG((hxgep, CFG_CTL, " <== hxge_set_hw_class_config"));
455 }
456 
457 
458 /*
459  * Interrupts related interface functions.
460  */
461 hxge_status_t
462 hxge_ldgv_init(p_hxge_t hxgep, int *navail_p, int *nrequired_p)
463 {
464 	uint8_t			ldv, i, maxldvs, maxldgs, start, end, nldvs;
465 	int			ldg, endldg, ngrps;
466 	uint8_t			channel;
467 	p_hxge_dma_pt_cfg_t	p_dma_cfgp;
468 	p_hxge_hw_pt_cfg_t	p_cfgp;
469 	p_hxge_ldgv_t		ldgvp;
470 	p_hxge_ldg_t		ldgp, ptr;
471 	p_hxge_ldv_t		ldvp;
472 	hxge_status_t		status = HXGE_OK;
473 
474 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_ldgv_init"));
475 	if (!*navail_p) {
476 		*nrequired_p = 0;
477 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
478 		    "<== hxge_ldgv_init:no avail"));
479 		return (HXGE_ERROR);
480 	}
481 	p_dma_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
482 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_dma_cfgp->hw_config;
483 
484 	/* each DMA channels */
485 	nldvs = p_cfgp->max_tdcs + p_cfgp->max_rdcs;
486 
487 	/* vmac */
488 	nldvs++;
489 
490 	/* pfc */
491 	nldvs++;
492 
493 	/* nmac for the link status register only */
494 	nldvs++;
495 
496 	/* system error interrupts. */
497 	nldvs++;
498 
499 	maxldvs = nldvs;
500 	maxldgs = p_cfgp->max_ldgs;
501 
502 	if (!maxldvs || !maxldgs) {
503 		/* No devices configured. */
504 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "<== hxge_ldgv_init: "
505 		    "no logical devices or groups configured."));
506 		return (HXGE_ERROR);
507 	}
508 	ldgvp = hxgep->ldgvp;
509 	if (ldgvp == NULL) {
510 		ldgvp = KMEM_ZALLOC(sizeof (hxge_ldgv_t), KM_SLEEP);
511 		hxgep->ldgvp = ldgvp;
512 		ldgvp->maxldgs = maxldgs;
513 		ldgvp->maxldvs = maxldvs;
514 		ldgp = ldgvp->ldgp =
515 		    KMEM_ZALLOC(sizeof (hxge_ldg_t) * maxldgs, KM_SLEEP);
516 		ldvp = ldgvp->ldvp =
517 		    KMEM_ZALLOC(sizeof (hxge_ldv_t) * maxldvs, KM_SLEEP);
518 	}
519 
520 	ldgvp->ndma_ldvs = p_cfgp->max_tdcs + p_cfgp->max_rdcs;
521 	ldgvp->tmres = HXGE_TIMER_RESO;
522 
523 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
524 	    "==> hxge_ldgv_init: maxldvs %d maxldgs %d nldvs %d",
525 	    maxldvs, maxldgs, nldvs));
526 
527 	ldg = p_cfgp->start_ldg;
528 	ptr = ldgp;
529 	for (i = 0; i < maxldgs; i++) {
530 		ptr->arm = B_TRUE;
531 		ptr->vldg_index = i;
532 		ptr->ldg_timer = HXGE_TIMER_LDG;
533 		ptr->ldg = ldg++;
534 		ptr->sys_intr_handler = hxge_intr;
535 		ptr->nldvs = 0;
536 		ptr->hxgep = hxgep;
537 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
538 		    "==> hxge_ldgv_init: maxldvs %d maxldgs %d ldg %d",
539 		    maxldvs, maxldgs, ptr->ldg));
540 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
541 		    "==> hxge_ldv_init: timer %d", ptr->ldg_timer));
542 		ptr++;
543 	}
544 
545 	ldg = p_cfgp->start_ldg;
546 	if (maxldgs > *navail_p) {
547 		ngrps = *navail_p;
548 	} else {
549 		ngrps = maxldgs;
550 	}
551 	endldg = ldg + ngrps;
552 
553 	/*
554 	 * Receive DMA channels.
555 	 */
556 	channel = p_cfgp->start_rdc;
557 	start = p_cfgp->start_rdc + HXGE_RDMA_LD_START;
558 	end = start + p_cfgp->max_rdcs;
559 	nldvs = 0;
560 	ldgvp->nldvs = 0;
561 	ldgp->ldvp = NULL;
562 	*nrequired_p = 0;
563 	ptr = ldgp;
564 
565 	/*
566 	 * Start with RDC to configure logical devices for each group.
567 	 */
568 	for (i = 0, ldv = start; ldv < end; i++, ldv++) {
569 		ldvp->is_rxdma = B_TRUE;
570 		ldvp->ldv = ldv;
571 
572 		/*
573 		 * If non-seq needs to change the following code
574 		 */
575 		ldvp->channel = channel++;
576 		ldvp->vdma_index = i;
577 		ldvp->ldv_intr_handler = hxge_rx_intr;
578 		ldvp->ldv_ldf_masks = 0;
579 		ldvp->use_timer = B_FALSE;
580 		ldvp->hxgep = hxgep;
581 		hxge_ldgv_setup(&ptr, &ldvp, ldv, endldg, nrequired_p);
582 		nldvs++;
583 	}
584 
585 	/*
586 	 * Transmit DMA channels.
587 	 */
588 	channel = p_cfgp->start_tdc;
589 	start = p_cfgp->start_tdc + HXGE_TDMA_LD_START;
590 	end = start + p_cfgp->max_tdcs;
591 	for (i = 0, ldv = start; ldv < end; i++, ldv++) {
592 		ldvp->is_txdma = B_TRUE;
593 		ldvp->ldv = ldv;
594 		ldvp->channel = channel++;
595 		ldvp->vdma_index = i;
596 		ldvp->ldv_intr_handler = hxge_tx_intr;
597 		ldvp->ldv_ldf_masks = 0;
598 		ldvp->use_timer = B_FALSE;
599 		ldvp->hxgep = hxgep;
600 		hxge_ldgv_setup(&ptr, &ldvp, ldv, endldg, nrequired_p);
601 		nldvs++;
602 	}
603 
604 	/*
605 	 * VMAC
606 	 */
607 	ldvp->is_vmac = B_TRUE;
608 	ldvp->ldv_intr_handler = hxge_vmac_intr;
609 	ldvp->ldv_ldf_masks = 0;
610 	ldv = HXGE_VMAC_LD;
611 	ldvp->ldv = ldv;
612 	ldvp->use_timer = B_FALSE;
613 	ldvp->hxgep = hxgep;
614 	hxge_ldgv_setup(&ptr, &ldvp, ldv, endldg, nrequired_p);
615 	nldvs++;
616 
617 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
618 	    "==> hxge_ldgv_init: nldvs %d navail %d nrequired %d",
619 	    nldvs, *navail_p, *nrequired_p));
620 
621 	/*
622 	 * PFC
623 	 */
624 	ldvp->is_pfc = B_TRUE;
625 	ldvp->ldv_intr_handler = hxge_pfc_intr;
626 	ldvp->ldv_ldf_masks = 0;
627 	ldv = HXGE_PFC_LD;
628 	ldvp->ldv = ldv;
629 	ldvp->use_timer = B_FALSE;
630 	ldvp->hxgep = hxgep;
631 	hxge_ldgv_setup(&ptr, &ldvp, ldv, endldg, nrequired_p);
632 	nldvs++;
633 
634 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
635 	    "==> hxge_ldgv_init: nldvs %d navail %d nrequired %d",
636 	    nldvs, *navail_p, *nrequired_p));
637 
638 	/*
639 	 * NMAC
640 	 */
641 	ldvp->ldv_intr_handler = hxge_nmac_intr;
642 	ldvp->ldv_ldf_masks = 0;
643 	ldv = HXGE_NMAC_LD;
644 	ldvp->ldv = ldv;
645 	ldvp->use_timer = B_FALSE;
646 	ldvp->hxgep = hxgep;
647 	hxge_ldgv_setup(&ptr, &ldvp, ldv, endldg, nrequired_p);
648 	nldvs++;
649 
650 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
651 	    "==> hxge_ldgv_init: nldvs %d navail %d nrequired %d",
652 	    nldvs, *navail_p, *nrequired_p));
653 
654 	/*
655 	 * System error interrupts.
656 	 */
657 	ldv = HXGE_SYS_ERROR_LD;
658 	ldvp->ldv = ldv;
659 	ldvp->is_syserr = B_TRUE;
660 	ldvp->ldv_intr_handler = hxge_syserr_intr;
661 	ldvp->ldv_ldf_masks = 0;
662 	ldvp->hxgep = hxgep;
663 	ldvp->use_timer = B_FALSE;
664 	ldgvp->ldvp_syserr = ldvp;
665 
666 	/* Reset PEU error mask to allow PEU error interrupts */
667 	HXGE_REG_WR32(hxgep->hpi_handle, PEU_INTR_MASK, 0x0);
668 
669 	/*
670 	 * Unmask the system interrupt states.
671 	 */
672 	(void) hxge_fzc_sys_err_mask_set(hxgep, B_FALSE);
673 	(void) hxge_ldgv_setup(&ptr, &ldvp, ldv, endldg, nrequired_p);
674 	nldvs++;
675 
676 	ldgvp->ldg_intrs = *nrequired_p;
677 
678 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
679 	    "==> hxge_ldgv_init: nldvs %d navail %d nrequired %d",
680 	    nldvs, *navail_p, *nrequired_p));
681 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_ldgv_init"));
682 	return (status);
683 }
684 
685 hxge_status_t
686 hxge_ldgv_uninit(p_hxge_t hxgep)
687 {
688 	p_hxge_ldgv_t		ldgvp;
689 
690 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_ldgv_uninit"));
691 	ldgvp = hxgep->ldgvp;
692 	if (ldgvp == NULL) {
693 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
694 		    "<== hxge_ldgv_uninit: no logical group configured."));
695 		return (HXGE_OK);
696 	}
697 
698 	if (ldgvp->ldgp) {
699 		KMEM_FREE(ldgvp->ldgp, sizeof (hxge_ldg_t) * ldgvp->maxldgs);
700 	}
701 	if (ldgvp->ldvp) {
702 		KMEM_FREE(ldgvp->ldvp, sizeof (hxge_ldv_t) * ldgvp->maxldvs);
703 	}
704 
705 	KMEM_FREE(ldgvp, sizeof (hxge_ldgv_t));
706 	hxgep->ldgvp = NULL;
707 
708 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_ldgv_uninit"));
709 	return (HXGE_OK);
710 }
711 
712 hxge_status_t
713 hxge_intr_ldgv_init(p_hxge_t hxgep)
714 {
715 	hxge_status_t	status = HXGE_OK;
716 
717 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr_ldgv_init"));
718 	/*
719 	 * Configure the logical device group numbers, state vectors
720 	 * and interrupt masks for each logical device.
721 	 */
722 	status = hxge_fzc_intr_init(hxgep);
723 
724 	/*
725 	 * Configure logical device masks and timers.
726 	 */
727 	status = hxge_intr_mask_mgmt(hxgep);
728 
729 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intr_ldgv_init"));
730 	return (status);
731 }
732 
733 hxge_status_t
734 hxge_intr_mask_mgmt(p_hxge_t hxgep)
735 {
736 	p_hxge_ldgv_t	ldgvp;
737 	p_hxge_ldg_t	ldgp;
738 	p_hxge_ldv_t	ldvp;
739 	hpi_handle_t	handle;
740 	int		i, j;
741 	hpi_status_t	rs = HPI_SUCCESS;
742 
743 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr_mask_mgmt"));
744 
745 	if ((ldgvp = hxgep->ldgvp) == NULL) {
746 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
747 		    "<== hxge_intr_mask_mgmt: Null ldgvp"));
748 		return (HXGE_ERROR);
749 	}
750 	handle = HXGE_DEV_HPI_HANDLE(hxgep);
751 	ldgp = ldgvp->ldgp;
752 	ldvp = ldgvp->ldvp;
753 	if (ldgp == NULL || ldvp == NULL) {
754 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
755 		    "<== hxge_intr_mask_mgmt: Null ldgp or ldvp"));
756 		return (HXGE_ERROR);
757 	}
758 
759 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
760 	    "==> hxge_intr_mask_mgmt: # of intrs %d ", ldgvp->ldg_intrs));
761 	/* Initialize masks. */
762 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
763 	    "==> hxge_intr_mask_mgmt(Hydra): # intrs %d ", ldgvp->ldg_intrs));
764 	for (i = 0; i < ldgvp->ldg_intrs; i++, ldgp++) {
765 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
766 		    "==> hxge_intr_mask_mgmt(Hydra): # ldv %d in group %d",
767 		    ldgp->nldvs, ldgp->ldg));
768 		for (j = 0; j < ldgp->nldvs; j++, ldvp++) {
769 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
770 			    "==> hxge_intr_mask_mgmt: set ldv # %d "
771 			    "for ldg %d", ldvp->ldv, ldgp->ldg));
772 			rs = hpi_intr_mask_set(handle, ldvp->ldv,
773 			    ldvp->ldv_ldf_masks);
774 			if (rs != HPI_SUCCESS) {
775 				HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
776 				    "<== hxge_intr_mask_mgmt: set mask failed "
777 				    " rs 0x%x ldv %d mask 0x%x",
778 				    rs, ldvp->ldv, ldvp->ldv_ldf_masks));
779 				return (HXGE_ERROR | rs);
780 			}
781 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
782 			    "==> hxge_intr_mask_mgmt: set mask OK "
783 			    " rs 0x%x ldv %d mask 0x%x",
784 			    rs, ldvp->ldv, ldvp->ldv_ldf_masks));
785 		}
786 	}
787 
788 	ldgp = ldgvp->ldgp;
789 	/* Configure timer and arm bit */
790 	for (i = 0; i < hxgep->ldgvp->ldg_intrs; i++, ldgp++) {
791 		rs = hpi_intr_ldg_mgmt_set(handle, ldgp->ldg,
792 		    ldgp->arm, ldgp->ldg_timer);
793 		if (rs != HPI_SUCCESS) {
794 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
795 			    "<== hxge_intr_mask_mgmt: set timer failed "
796 			    " rs 0x%x dg %d timer 0x%x",
797 			    rs, ldgp->ldg, ldgp->ldg_timer));
798 			return (HXGE_ERROR | rs);
799 		}
800 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
801 		    "==> hxge_intr_mask_mgmt: set timer OK "
802 		    " rs 0x%x ldg %d timer 0x%x",
803 		    rs, ldgp->ldg, ldgp->ldg_timer));
804 	}
805 
806 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_fzc_intr_mask_mgmt"));
807 	return (HXGE_OK);
808 }
809 
810 hxge_status_t
811 hxge_intr_mask_mgmt_set(p_hxge_t hxgep, boolean_t on)
812 {
813 	p_hxge_ldgv_t	ldgvp;
814 	p_hxge_ldg_t	ldgp;
815 	p_hxge_ldv_t	ldvp;
816 	hpi_handle_t	handle;
817 	int		i, j;
818 	hpi_status_t	rs = HPI_SUCCESS;
819 
820 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
821 	    "==> hxge_intr_mask_mgmt_set (%d)", on));
822 
823 	if ((ldgvp = hxgep->ldgvp) == NULL) {
824 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
825 		    "==> hxge_intr_mask_mgmt_set: Null ldgvp"));
826 		return (HXGE_ERROR);
827 	}
828 	handle = HXGE_DEV_HPI_HANDLE(hxgep);
829 	ldgp = ldgvp->ldgp;
830 	ldvp = ldgvp->ldvp;
831 	if (ldgp == NULL || ldvp == NULL) {
832 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
833 		    "<== hxge_intr_mask_mgmt_set: Null ldgp or ldvp"));
834 		return (HXGE_ERROR);
835 	}
836 
837 	/* set masks. */
838 	for (i = 0; i < ldgvp->ldg_intrs; i++, ldgp++) {
839 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
840 		    "==> hxge_intr_mask_mgmt_set: flag %d ldg %d"
841 		    "set mask nldvs %d", on, ldgp->ldg, ldgp->nldvs));
842 		for (j = 0; j < ldgp->nldvs; j++, ldvp++) {
843 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
844 			    "==> hxge_intr_mask_mgmt_set: "
845 			    "for %d %d flag %d", i, j, on));
846 			if (on) {
847 				ldvp->ldv_ldf_masks = 0;
848 				HXGE_DEBUG_MSG((hxgep, INT_CTL,
849 				    "==> hxge_intr_mask_mgmt_set: "
850 				    "ON mask off"));
851 			} else {
852 				ldvp->ldv_ldf_masks = (uint8_t)LD_IM_MASK;
853 				HXGE_DEBUG_MSG((hxgep, INT_CTL,
854 				    "==> hxge_intr_mask_mgmt_set:mask on"));
855 			}
856 
857 			/*
858 			 * Bringup - NMAC constantly interrupts since hydrad
859 			 * is not available yet. When hydrad is available
860 			 * and handles the interrupts, we will delete the
861 			 * following two lines
862 			 */
863 			if (ldvp->ldv_intr_handler == hxge_nmac_intr)
864 				ldvp->ldv_ldf_masks = (uint8_t)LD_IM_MASK;
865 
866 			rs = hpi_intr_mask_set(handle, ldvp->ldv,
867 			    ldvp->ldv_ldf_masks);
868 			if (rs != HPI_SUCCESS) {
869 				HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
870 				    "==> hxge_intr_mask_mgmt_set: "
871 				    "set mask failed rs 0x%x ldv %d mask 0x%x",
872 				    rs, ldvp->ldv, ldvp->ldv_ldf_masks));
873 				return (HXGE_ERROR | rs);
874 			}
875 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
876 			    "==> hxge_intr_mask_mgmt_set: flag %d"
877 			    "set mask OK ldv %d mask 0x%x",
878 			    on, ldvp->ldv, ldvp->ldv_ldf_masks));
879 		}
880 	}
881 
882 	ldgp = ldgvp->ldgp;
883 	/* set the arm bit */
884 	for (i = 0; i < hxgep->ldgvp->ldg_intrs; i++, ldgp++) {
885 		if (on && !ldgp->arm) {
886 			ldgp->arm = B_TRUE;
887 		} else if (!on && ldgp->arm) {
888 			ldgp->arm = B_FALSE;
889 		}
890 		rs = hpi_intr_ldg_mgmt_set(handle, ldgp->ldg,
891 		    ldgp->arm, ldgp->ldg_timer);
892 		if (rs != HPI_SUCCESS) {
893 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
894 			    "<== hxge_intr_mask_mgmt_set: "
895 			    "set timer failed rs 0x%x ldg %d timer 0x%x",
896 			    rs, ldgp->ldg, ldgp->ldg_timer));
897 			return (HXGE_ERROR | rs);
898 		}
899 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
900 		    "==> hxge_intr_mask_mgmt_set: OK (flag %d) "
901 		    "set timer ldg %d timer 0x%x",
902 		    on, ldgp->ldg, ldgp->ldg_timer));
903 	}
904 
905 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intr_mask_mgmt_set"));
906 	return (HXGE_OK);
907 }
908 
909 /*
910  * For Big Endian systems, the mac address will be from OBP. For Little
911  * Endian (x64) systems, it will be retrieved from the card since it cannot
912  * be programmed into PXE.
913  * This function also populates the MMAC parameters.
914  */
915 static hxge_status_t
916 hxge_get_mac_addr_properties(p_hxge_t hxgep)
917 {
918 	uint32_t	num_macs;
919 	hxge_status_t	status;
920 
921 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_get_mac_addr_properties "));
922 
923 	(void) hxge_pfc_mac_addrs_get(hxgep);
924 	hxgep->ouraddr = hxgep->factaddr;
925 
926 	/*
927 	 * Get the number of MAC addresses the Hydra supports per blade.
928 	 */
929 	if (hxge_pfc_num_macs_get(hxgep, &num_macs) == HXGE_OK) {
930 		hxgep->hxge_mmac_info.num_mmac = (uint8_t)num_macs;
931 	} else {
932 		HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL,
933 		    "hxge_get_mac_addr_properties: get macs failed"));
934 		return (HXGE_ERROR);
935 	}
936 
937 	/*
938 	 * Initialize alt. mac addr. in the mac pool
939 	 */
940 	status = hxge_mmac_init(hxgep);
941 	if (status != HXGE_OK) {
942 		HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL,
943 		    "hxge_get_mac_addr_properties: init mmac failed"));
944 		return (HXGE_ERROR);
945 	}
946 
947 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_get_mac_addr_properties "));
948 	return (HXGE_OK);
949 }
950 
951 static void
952 hxge_ldgv_setup(p_hxge_ldg_t *ldgp, p_hxge_ldv_t *ldvp, uint8_t ldv,
953 	uint8_t endldg, int *ngrps)
954 {
955 	HXGE_DEBUG_MSG((NULL, INT_CTL, "==> hxge_ldgv_setup"));
956 	/* Assign the group number for each device. */
957 	(*ldvp)->ldg_assigned = (*ldgp)->ldg;
958 	(*ldvp)->ldgp = *ldgp;
959 	(*ldvp)->ldv = ldv;
960 
961 	HXGE_DEBUG_MSG((NULL, INT_CTL,
962 	    "==> hxge_ldgv_setup: ldv %d endldg %d ldg %d, ldvp $%p",
963 	    ldv, endldg, (*ldgp)->ldg, (*ldgp)->ldvp));
964 
965 	(*ldgp)->nldvs++;
966 	if ((*ldgp)->ldg == (endldg - 1)) {
967 		if ((*ldgp)->ldvp == NULL) {
968 			(*ldgp)->ldvp = *ldvp;
969 			*ngrps += 1;
970 			HXGE_DEBUG_MSG((NULL, INT_CTL,
971 			    "==> hxge_ldgv_setup: ngrps %d", *ngrps));
972 		}
973 		HXGE_DEBUG_MSG((NULL, INT_CTL,
974 		    "==> hxge_ldgv_setup: ldvp $%p ngrps %d",
975 		    *ldvp, *ngrps));
976 		++*ldvp;
977 	} else {
978 		(*ldgp)->ldvp = *ldvp;
979 		*ngrps += 1;
980 		HXGE_DEBUG_MSG((NULL, INT_CTL, "==> hxge_ldgv_setup(done): "
981 		    "ldv %d endldg %d ldg %d, ldvp $%p",
982 		    ldv, endldg, (*ldgp)->ldg, (*ldgp)->ldvp));
983 		(*ldvp) = ++*ldvp;
984 		(*ldgp) = ++*ldgp;
985 		HXGE_DEBUG_MSG((NULL, INT_CTL,
986 		    "==> hxge_ldgv_setup: new ngrps %d", *ngrps));
987 	}
988 
989 	HXGE_DEBUG_MSG((NULL, INT_CTL, "==> hxge_ldgv_setup: "
990 	    "ldg %d nldvs %d ldv %d ldvp $%p endldg %d ngrps %d",
991 	    (*ldgp)->ldg, (*ldgp)->nldvs, ldv, ldvp, endldg, *ngrps));
992 
993 	HXGE_DEBUG_MSG((NULL, INT_CTL, "<== hxge_ldgv_setup"));
994 }
995 
996 /*
997  * Note: This function assumes the following distribution of mac
998  * addresses for a hydra blade:
999  *
1000  *      -------------
1001  *    0|            |0 - local-mac-address for blade
1002  *      -------------
1003  *     |            |1 - Start of alt. mac addr. for blade
1004  *     |            |
1005  *     |            |
1006  *     |            |15
1007  *     --------------
1008  */
1009 
1010 static hxge_status_t
1011 hxge_mmac_init(p_hxge_t hxgep)
1012 {
1013 	int slot;
1014 	hxge_mmac_t *mmac_info;
1015 
1016 	mmac_info = (hxge_mmac_t *)&hxgep->hxge_mmac_info;
1017 
1018 	/* Set flags for unique MAC */
1019 	mmac_info->mac_pool[0].flags |= MMAC_SLOT_USED | MMAC_VENDOR_ADDR;
1020 	mmac_info->num_factory_mmac = 1;
1021 
1022 	/*
1023 	 * Skip the factory/default address which is in slot 0.
1024 	 * Initialze all other mac addr. to "AVAILABLE" state.
1025 	 * Clear flags of all alternate MAC slots.
1026 	 */
1027 	for (slot = 1; slot < mmac_info->num_mmac; slot++) {
1028 		(void) hpi_pfc_clear_mac_address(hxgep->hpi_handle, slot);
1029 		mmac_info->mac_pool[slot].flags = 0;
1030 	}
1031 
1032 	/* Exclude the factory mac address */
1033 	mmac_info->naddrfree = mmac_info->num_mmac - 1;
1034 
1035 	/* Initialize the first two parameters for mmac kstat */
1036 	hxgep->statsp->mmac_stats.mmac_max_cnt = mmac_info->num_mmac;
1037 	hxgep->statsp->mmac_stats.mmac_avail_cnt = mmac_info->naddrfree;
1038 
1039 	return (HXGE_OK);
1040 }
1041 
1042 /*ARGSUSED*/
1043 uint_t
1044 hxge_nmac_intr(caddr_t arg1, caddr_t arg2)
1045 {
1046 	p_hxge_t		hxgep = (p_hxge_t)arg2;
1047 	hpi_handle_t		handle;
1048 	p_hxge_stats_t		statsp;
1049 	cip_link_stat_t		link_stat;
1050 
1051 	HXGE_DEBUG_MSG((hxgep, MAC_INT_CTL, "==> hxge_nmac_intr"));
1052 
1053 	handle = HXGE_DEV_HPI_HANDLE(hxgep);
1054 	statsp = (p_hxge_stats_t)hxgep->statsp;
1055 
1056 	HXGE_REG_RD32(handle, CIP_LINK_STAT, &link_stat.value);
1057 	HXGE_DEBUG_MSG((hxgep, MAC_INT_CTL, "hxge_nmac_intr: status is 0x%x",
1058 	    link_stat.value));
1059 
1060 	if (link_stat.bits.xpcs0_link_up) {
1061 		mac_link_update(hxgep->mach, LINK_STATE_UP);
1062 		statsp->mac_stats.link_up = 1;
1063 	} else {
1064 		mac_link_update(hxgep->mach, LINK_STATE_DOWN);
1065 		statsp->mac_stats.link_up = 0;
1066 	}
1067 
1068 	HXGE_DEBUG_MSG((hxgep, MAC_INT_CTL, "<== hxge_nmac_intr"));
1069 	return (DDI_INTR_CLAIMED);
1070 }
1071