1 /*
2  * This file and its contents are supplied under the terms of the
3  * Common Development and Distribution License ("CDDL"), version 1.0.
4  * You may only use this file in accordance with the terms of version
5  * 1.0 of the CDDL.
6  *
7  * A full copy of the text of the CDDL should have accompanied this
8  * source. A copy of the CDDL is also available via the Internet at
9  * http://www.illumos.org/license/CDDL.
10  */
11 
12 /*
13  * This file is part of the Chelsio T4 support code.
14  *
15  * Copyright (C) 2010-2013 Chelsio Communications.  All rights reserved.
16  *
17  * This program is distributed in the hope that it will be useful, but WITHOUT
18  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19  * FITNESS FOR A PARTICULAR PURPOSE.  See the LICENSE file included in this
20  * release for licensing terms and conditions.
21  */
22 
23 /*
24  * Copyright 2020 RackTop Systems, Inc.
25  * Copyright 2021 Oxide Computer Company
26  */
27 
28 #include <sys/ddi.h>
29 #include <sys/sunddi.h>
30 #include <sys/dlpi.h>
31 #include <sys/mac_provider.h>
32 #include <sys/mac_ether.h>
33 #include <sys/strsubr.h>
34 #include <sys/queue.h>
35 
36 #include "common/common.h"
37 #include "common/t4_regs.h"
38 
39 static int t4_mc_getstat(void *arg, uint_t stat, uint64_t *val);
40 static int t4_mc_start(void *arg);
41 static void t4_mc_stop(void *arg);
42 static int t4_mc_setpromisc(void *arg, boolean_t on);
43 static int t4_mc_multicst(void *arg, boolean_t add, const uint8_t *mcaddr);
44 static int t4_mc_unicst(void *arg, const uint8_t *ucaddr);
45 static boolean_t t4_mc_getcapab(void *arg, mac_capab_t cap, void *data);
46 static int t4_mc_setprop(void *arg, const char *name, mac_prop_id_t id,
47     uint_t size, const void *val);
48 static int t4_mc_getprop(void *arg, const char *name, mac_prop_id_t id,
49     uint_t size, void *val);
50 static void t4_mc_propinfo(void *arg, const char *name, mac_prop_id_t id,
51     mac_prop_info_handle_t ph);
52 
53 static int t4_init_synchronized(struct port_info *pi);
54 static int t4_uninit_synchronized(struct port_info *pi);
55 static void propinfo(struct port_info *pi, const char *name,
56     mac_prop_info_handle_t ph);
57 static int getprop(struct port_info *pi, const char *name, uint_t size,
58     void *val);
59 static int setprop(struct port_info *pi, const char *name, const void *val);
60 
61 mac_callbacks_t t4_m_callbacks = {
62 	.mc_callbacks	= MC_GETCAPAB | MC_PROPERTIES,
63 	.mc_getstat	= t4_mc_getstat,
64 	.mc_start	= t4_mc_start,
65 	.mc_stop	= t4_mc_stop,
66 	.mc_setpromisc	= t4_mc_setpromisc,
67 	.mc_multicst	= t4_mc_multicst,
68 	.mc_unicst =    t4_mc_unicst,
69 	.mc_tx =        t4_mc_tx,
70 	.mc_getcapab =	t4_mc_getcapab,
71 	.mc_setprop =	t4_mc_setprop,
72 	.mc_getprop =	t4_mc_getprop,
73 	.mc_propinfo =	t4_mc_propinfo,
74 };
75 
76 /* I couldn't comeup with a better idea of not redefine
77  * another strcture and instead somehow reuse the earlier
78  * above structure and modify its members.
79  */
80 mac_callbacks_t t4_m_ring_callbacks = {
81 	.mc_callbacks =	MC_GETCAPAB | MC_PROPERTIES,
82 	.mc_getstat =	t4_mc_getstat,
83 	.mc_start =	t4_mc_start,
84 	.mc_stop =	t4_mc_stop,
85 	.mc_setpromisc =t4_mc_setpromisc,
86 	.mc_multicst =	t4_mc_multicst,
87 	.mc_unicst =    NULL, /* t4_addmac */
88 	.mc_tx =        NULL, /* t4_eth_tx */
89 	.mc_getcapab	= t4_mc_getcapab,
90 	.mc_setprop	= t4_mc_setprop,
91 	.mc_getprop	= t4_mc_getprop,
92 	.mc_propinfo	= t4_mc_propinfo,
93 };
94 
95 #define	T4PROP_TMR_IDX "_holdoff_timer_idx"
96 #define	T4PROP_PKTC_IDX "_holdoff_pktc_idx"
97 #define	T4PROP_MTU "_mtu"
98 #define	T4PROP_HW_CSUM	"_hw_csum"
99 #define	T4PROP_HW_LSO	"_hw_lso"
100 #define	T4PROP_TX_PAUSE	"_tx_pause"
101 #define	T4PROP_RX_PAUSE	"_rx_pause"
102 
103 char *t4_priv_props[] = {
104 	T4PROP_TMR_IDX,
105 	T4PROP_PKTC_IDX,
106 #if MAC_VERSION == 1
107 	/* MAC_VERSION 1 doesn't seem to use MAC_PROP_MTU, hmmmm */
108 	T4PROP_MTU,
109 #endif
110 	T4PROP_HW_CSUM,
111 	T4PROP_HW_LSO,
112 	T4PROP_TX_PAUSE,
113 	T4PROP_RX_PAUSE,
114 	NULL
115 };
116 
117 static int
118 t4_mc_getstat(void *arg, uint_t stat, uint64_t *val)
119 {
120 	struct port_info *pi = arg;
121 	struct adapter *sc = pi->adapter;
122 	struct link_config *lc = &pi->link_cfg;
123 
124 #define	GET_STAT(name) \
125 	t4_read_reg64(sc, PORT_REG(pi->tx_chan, A_MPS_PORT_STAT_##name##_L))
126 
127 	switch (stat) {
128 	case MAC_STAT_IFSPEED:
129 		if (lc->link_ok != 0) {
130 			*val = t4_link_fwcap_to_speed(lc->link_caps);
131 			*val *= 1000000;
132 		} else
133 			*val = 0;
134 		break;
135 
136 	case MAC_STAT_MULTIRCV:
137 		*val = GET_STAT(RX_PORT_MCAST);
138 		break;
139 
140 	case MAC_STAT_BRDCSTRCV:
141 		*val = GET_STAT(RX_PORT_BCAST);
142 		break;
143 
144 	case MAC_STAT_MULTIXMT:
145 		*val = GET_STAT(TX_PORT_MCAST);
146 		break;
147 
148 	case MAC_STAT_BRDCSTXMT:
149 		*val = GET_STAT(TX_PORT_BCAST);
150 		break;
151 
152 	case MAC_STAT_NORCVBUF:
153 		*val = 0;	/* TODO should come from rxq->nomem */
154 		break;
155 
156 	case MAC_STAT_IERRORS:
157 		*val = GET_STAT(RX_PORT_MTU_ERROR) +
158 		    GET_STAT(RX_PORT_MTU_CRC_ERROR) +
159 		    GET_STAT(RX_PORT_CRC_ERROR) +
160 		    GET_STAT(RX_PORT_LEN_ERROR) +
161 		    GET_STAT(RX_PORT_SYM_ERROR) +
162 		    GET_STAT(RX_PORT_LESS_64B);
163 		break;
164 
165 	case MAC_STAT_UNKNOWNS:
166 		return (ENOTSUP);
167 
168 	case MAC_STAT_NOXMTBUF:
169 		*val = GET_STAT(TX_PORT_DROP);
170 		break;
171 
172 	case MAC_STAT_OERRORS:
173 		*val = GET_STAT(TX_PORT_ERROR);
174 		break;
175 
176 	case MAC_STAT_COLLISIONS:
177 		return (ENOTSUP);
178 
179 	case MAC_STAT_RBYTES:
180 		*val = GET_STAT(RX_PORT_BYTES);
181 		break;
182 
183 	case MAC_STAT_IPACKETS:
184 		*val = GET_STAT(RX_PORT_FRAMES);
185 		break;
186 
187 	case MAC_STAT_OBYTES:
188 		*val = GET_STAT(TX_PORT_BYTES);
189 		break;
190 
191 	case MAC_STAT_OPACKETS:
192 		*val = GET_STAT(TX_PORT_FRAMES);
193 		break;
194 
195 	case ETHER_STAT_ALIGN_ERRORS:
196 		return (ENOTSUP);
197 
198 	case ETHER_STAT_FCS_ERRORS:
199 		*val = GET_STAT(RX_PORT_CRC_ERROR);
200 		break;
201 
202 	case ETHER_STAT_FIRST_COLLISIONS:
203 	case ETHER_STAT_MULTI_COLLISIONS:
204 	case ETHER_STAT_SQE_ERRORS:
205 	case ETHER_STAT_DEFER_XMTS:
206 	case ETHER_STAT_TX_LATE_COLLISIONS:
207 	case ETHER_STAT_EX_COLLISIONS:
208 		return (ENOTSUP);
209 
210 	case ETHER_STAT_MACXMT_ERRORS:
211 		*val = GET_STAT(TX_PORT_ERROR);
212 		break;
213 
214 	case ETHER_STAT_CARRIER_ERRORS:
215 		return (ENOTSUP);
216 
217 	case ETHER_STAT_TOOLONG_ERRORS:
218 		*val = GET_STAT(RX_PORT_MTU_ERROR);
219 		break;
220 
221 	case ETHER_STAT_MACRCV_ERRORS:
222 		*val = GET_STAT(RX_PORT_MTU_ERROR) +
223 		    GET_STAT(RX_PORT_MTU_CRC_ERROR) +
224 		    GET_STAT(RX_PORT_CRC_ERROR) +
225 		    GET_STAT(RX_PORT_LEN_ERROR) +
226 		    GET_STAT(RX_PORT_SYM_ERROR) +
227 		    GET_STAT(RX_PORT_LESS_64B);
228 		break;
229 
230 	case ETHER_STAT_XCVR_ADDR:
231 	case ETHER_STAT_XCVR_ID:
232 	case ETHER_STAT_XCVR_INUSE:
233 		return (ENOTSUP);
234 
235 	case ETHER_STAT_CAP_100GFDX:
236 		*val = !!(lc->pcaps & FW_PORT_CAP32_SPEED_100G);
237 		break;
238 
239 	case ETHER_STAT_CAP_50GFDX:
240 		*val = !!(lc->pcaps & FW_PORT_CAP32_SPEED_50G);
241 		break;
242 
243 	case ETHER_STAT_CAP_40GFDX:
244 		*val = !!(lc->pcaps & FW_PORT_CAP32_SPEED_40G);
245 		break;
246 
247 	case ETHER_STAT_CAP_25GFDX:
248 		*val = !!(lc->pcaps & FW_PORT_CAP32_SPEED_25G);
249 		break;
250 
251 	case ETHER_STAT_CAP_10GFDX:
252 		*val = !!(lc->pcaps & FW_PORT_CAP32_SPEED_10G);
253 		break;
254 
255 	case ETHER_STAT_CAP_1000FDX:
256 		*val = !!(lc->pcaps & FW_PORT_CAP32_SPEED_1G);
257 		break;
258 
259 	case ETHER_STAT_CAP_100FDX:
260 		*val = !!(lc->pcaps & FW_PORT_CAP32_SPEED_100M);
261 		break;
262 
263 	case ETHER_STAT_CAP_1000HDX:
264 	case ETHER_STAT_CAP_100HDX:
265 	case ETHER_STAT_CAP_10FDX:
266 	case ETHER_STAT_CAP_10HDX:
267 		return (ENOTSUP);
268 
269 	case ETHER_STAT_CAP_ASMPAUSE:
270 		*val = !!(lc->pcaps & FW_PORT_CAP32_FC_RX);
271 		break;
272 
273 	case ETHER_STAT_CAP_PAUSE:
274 		*val = !!(lc->pcaps & FW_PORT_CAP32_FC_TX);
275 		break;
276 
277 	case ETHER_STAT_CAP_AUTONEG:
278 		*val = !!(lc->pcaps & FW_PORT_CAP32_ANEG);
279 		break;
280 
281 	/*
282 	 * We have set flow control configuration based on tx_pause and rx_pause
283 	 * values supported through ndd. Now, we need to translate the settings
284 	 * we have in link_config structure to adv_cap_asmpause and
285 	 * adv_cap_pause.
286 	 *
287 	 * There are 4 combinations possible and the translation is as below:
288 	 * tx_pause = 0 => We don't send pause frames during Rx congestion
289 	 * tx_pause = 1 => We send pause frames during Rx congestion
290 	 * rx_pause = 0 => We ignore received pause frames
291 	 * rx_pause = 1 => We pause transmission when we receive pause frames
292 	 *
293 	 * +----------------------------+----------------------------------+
294 	 * |  tx_pause	|    rx_pause	| adv_cap_asmpause | adv_cap_pause |
295 	 * +-------------------------+-------------------------------------+
296 	 * |	0	|	0	|	0	   |	0	   |
297 	 * |	0	|	1	|	1	   |	0	   |
298 	 * |	1	|	0	|	1	   |	1	   |
299 	 * |	1	|	1	|	0	   |	1	   |
300 	 * +----------------------------+----------------------------------+
301 	 */
302 
303 	/* Advertised asymmetric pause capability */
304 	case ETHER_STAT_ADV_CAP_ASMPAUSE:
305 		if (lc->pcaps & FW_PORT_CAP32_802_3_ASM_DIR)
306 			*val = !!(lc->admin_caps & FW_PORT_CAP32_802_3_ASM_DIR);
307 		else
308 			*val = (!!(lc->admin_caps & FW_PORT_CAP32_FC_TX)) ^
309 			       (!!(lc->admin_caps & FW_PORT_CAP32_FC_RX));
310 		break;
311 
312 	/* Advertised pause capability */
313 	case ETHER_STAT_ADV_CAP_PAUSE:
314 		if (lc->pcaps & FW_PORT_CAP32_802_3_PAUSE)
315 			*val = !!(lc->admin_caps & FW_PORT_CAP32_802_3_PAUSE);
316 		else
317 			*val = !!(lc->admin_caps & FW_PORT_CAP32_FC_TX);
318 		break;
319 
320 	case ETHER_STAT_ADV_CAP_100GFDX:
321 		*val = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_100G);
322 		break;
323 
324 	case ETHER_STAT_ADV_CAP_50GFDX:
325 		*val = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_50G);
326 		break;
327 
328 	case ETHER_STAT_ADV_CAP_40GFDX:
329 		*val = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_40G);
330 		break;
331 
332 	case ETHER_STAT_ADV_CAP_25GFDX:
333 		*val = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_25G);
334 		break;
335 
336 	case ETHER_STAT_ADV_CAP_10GFDX:
337 		*val = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_10G);
338 		break;
339 
340 	case ETHER_STAT_ADV_CAP_1000FDX:
341 		*val = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_1G);
342 		break;
343 
344 	case ETHER_STAT_ADV_CAP_100FDX:
345 		*val = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_100M);
346 		break;
347 
348 	case ETHER_STAT_ADV_CAP_AUTONEG:
349 		*val = !!(lc->admin_caps & FW_PORT_CAP32_ANEG);
350 		break;
351 
352 	case ETHER_STAT_ADV_CAP_1000HDX:
353 	case ETHER_STAT_ADV_CAP_100HDX:
354 	case ETHER_STAT_ADV_CAP_10FDX:
355 	case ETHER_STAT_ADV_CAP_10HDX:
356 		return (ENOTSUP);	/* TODO */
357 
358 	case ETHER_STAT_LP_CAP_ASMPAUSE:
359 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
360 			return (ENOTSUP);
361 
362 		if (lc->pcaps & FW_PORT_CAP32_802_3_ASM_DIR)
363 			*val = !!(lc->lpacaps & FW_PORT_CAP32_802_3_ASM_DIR);
364 		else
365 			*val = (!!(lc->lpacaps & FW_PORT_CAP32_FC_TX)) ^
366 			       (!!(lc->lpacaps & FW_PORT_CAP32_FC_RX));
367 		break;
368 
369 	case ETHER_STAT_LP_CAP_PAUSE:
370 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
371 			return (ENOTSUP);
372 
373 		if (lc->pcaps & FW_PORT_CAP32_802_3_PAUSE)
374 			*val = !!(lc->lpacaps & FW_PORT_CAP32_802_3_PAUSE);
375 		else
376 			*val = !!(lc->lpacaps & FW_PORT_CAP32_FC_TX);
377 		break;
378 
379 	case ETHER_STAT_LP_CAP_100GFDX:
380 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
381 			return (ENOTSUP);
382 
383 		*val = !!(lc->lpacaps & FW_PORT_CAP32_SPEED_100G);
384 		break;
385 
386 	case ETHER_STAT_LP_CAP_50GFDX:
387 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
388 			return (ENOTSUP);
389 
390 		*val = !!(lc->lpacaps & FW_PORT_CAP32_SPEED_50G);
391 		break;
392 
393 	case ETHER_STAT_LP_CAP_40GFDX:
394 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
395 			return (ENOTSUP);
396 
397 		*val = !!(lc->lpacaps & FW_PORT_CAP32_SPEED_40G);
398 		break;
399 
400 	case ETHER_STAT_LP_CAP_25GFDX:
401 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
402 			return (ENOTSUP);
403 
404 		*val = !!(lc->lpacaps & FW_PORT_CAP32_SPEED_25G);
405 		break;
406 
407 	case ETHER_STAT_LP_CAP_10GFDX:
408 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
409 			return (ENOTSUP);
410 
411 		*val = !!(lc->lpacaps & FW_PORT_CAP32_SPEED_10G);
412 		break;
413 
414 	case ETHER_STAT_LP_CAP_1000FDX:
415 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
416 			return (ENOTSUP);
417 
418 		*val = !!(lc->lpacaps & FW_PORT_CAP32_SPEED_1G);
419 		break;
420 
421 	case ETHER_STAT_LP_CAP_100FDX:
422 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
423 			return (ENOTSUP);
424 
425 		*val = !!(lc->lpacaps & FW_PORT_CAP32_SPEED_100M);
426 		break;
427 
428 	case ETHER_STAT_LP_CAP_AUTONEG:
429 		if (!(lc->acaps & FW_PORT_CAP32_ANEG))
430 			return (ENOTSUP);
431 
432 		*val = !!(lc->lpacaps & FW_PORT_CAP32_ANEG);
433 		break;
434 
435 	case ETHER_STAT_LP_CAP_1000HDX:
436 	case ETHER_STAT_LP_CAP_100HDX:
437 	case ETHER_STAT_LP_CAP_10FDX:
438 	case ETHER_STAT_LP_CAP_10HDX:
439 		return (ENOTSUP);
440 
441 	case ETHER_STAT_LINK_ASMPAUSE:
442 		*val = (!!(lc->link_caps & FW_PORT_CAP32_FC_TX)) ^
443 		       (!!(lc->link_caps & FW_PORT_CAP32_FC_RX));
444 		break;
445 
446 	case ETHER_STAT_LINK_PAUSE:
447 		*val = !!(lc->link_caps & FW_PORT_CAP32_FC_TX);
448 		break;
449 
450 	case ETHER_STAT_LINK_AUTONEG:
451 		*val = !!(lc->link_caps & FW_PORT_CAP32_ANEG);
452 		break;
453 
454 	case ETHER_STAT_LINK_DUPLEX:
455 		if (lc->link_ok != 0)
456 			*val = LINK_DUPLEX_FULL;
457 		else
458 			*val = LINK_DUPLEX_UNKNOWN;
459 		break;
460 
461 	default:
462 		return (ENOTSUP);
463 	}
464 #undef GET_STAT
465 
466 	return (0);
467 }
468 
469 static int
470 t4_mc_start(void *arg)
471 {
472 	struct port_info *pi = arg;
473 	int rc;
474 
475 	rc = begin_synchronized_op(pi, 0, 1);
476 	if (rc != 0)
477 		return (rc);
478 	rc = t4_init_synchronized(pi);
479 	end_synchronized_op(pi, 0);
480 
481 	return (rc);
482 }
483 
484 static void
485 t4_mc_stop(void *arg)
486 {
487 	struct port_info *pi = arg;
488 
489 	while (begin_synchronized_op(pi, 0, 1) != 0)
490 		continue;
491 	(void) t4_uninit_synchronized(pi);
492 	end_synchronized_op(pi, 0);
493 }
494 
495 static int
496 t4_mc_setpromisc(void *arg, boolean_t on)
497 {
498 	struct port_info *pi = arg;
499 	struct adapter *sc = pi->adapter;
500 	int rc;
501 
502 	rc = begin_synchronized_op(pi, 1, 1);
503 	if (rc != 0)
504 		return (rc);
505 	rc = -t4_set_rxmode(sc, sc->mbox, pi->viid, -1, on ? 1 : 0, -1, -1, -1,
506 	    false);
507 	end_synchronized_op(pi, 1);
508 
509 	return (rc);
510 }
511 
512 /*
513  * TODO: Starts failing as soon as the 336 entry table fills up.  Need to use
514  * hash in that case.
515  */
516 static int
517 t4_mc_multicst(void *arg, boolean_t add, const uint8_t *mcaddr)
518 {
519 	struct port_info *pi = arg;
520 	struct adapter *sc = pi->adapter;
521 	struct fw_vi_mac_cmd c;
522 	int len16, rc;
523 
524 	len16 = howmany(sizeof (c.op_to_viid) + sizeof (c.freemacs_to_len16) +
525 	    sizeof (c.u.exact[0]), 16);
526 	c.op_to_viid = htonl(V_FW_CMD_OP(FW_VI_MAC_CMD) | F_FW_CMD_REQUEST |
527 	    F_FW_CMD_WRITE | V_FW_VI_MAC_CMD_VIID(pi->viid));
528 	c.freemacs_to_len16 = htonl(V_FW_CMD_LEN16(len16));
529 	c.u.exact[0].valid_to_idx = htons(F_FW_VI_MAC_CMD_VALID |
530 	    V_FW_VI_MAC_CMD_IDX(add ? FW_VI_MAC_ADD_MAC :
531 	    FW_VI_MAC_MAC_BASED_FREE));
532 	bcopy(mcaddr, &c.u.exact[0].macaddr, ETHERADDRL);
533 
534 	rc = begin_synchronized_op(pi, 1, 1);
535 	if (rc != 0)
536 		return (rc);
537 	rc = -t4_wr_mbox_meat(sc, sc->mbox, &c, len16 * 16, &c, true);
538 	end_synchronized_op(pi, 1);
539 	if (rc != 0)
540 		return (rc);
541 #ifdef DEBUG
542 	/*
543 	 * TODO: Firmware doesn't seem to return the correct index on removal
544 	 * (it gives back 0x3fd FW_VI_MAC_MAC_BASED_FREE unchanged. Remove this
545 	 * code once it is fixed.
546 	 */
547 	else {
548 		uint16_t idx;
549 
550 		idx = G_FW_VI_MAC_CMD_IDX(ntohs(c.u.exact[0].valid_to_idx));
551 		cxgb_printf(pi->dip, CE_NOTE,
552 		    "%02x:%02x:%02x:%02x:%02x:%02x %s %d", mcaddr[0],
553 		    mcaddr[1], mcaddr[2], mcaddr[3], mcaddr[4], mcaddr[5],
554 		    add ? "added at index" : "removed from index", idx);
555 	}
556 #endif
557 
558 	return (0);
559 }
560 
561 int
562 t4_mc_unicst(void *arg, const uint8_t *ucaddr)
563 {
564 	struct port_info *pi = arg;
565 	struct adapter *sc = pi->adapter;
566 	int rc;
567 
568 	if (ucaddr == NULL)
569 		return (EINVAL);
570 
571 	rc = begin_synchronized_op(pi, 1, 1);
572 	if (rc != 0)
573 		return (rc);
574 
575 	/* We will support adding only one mac address */
576 	if (pi->adapter->props.multi_rings && pi->macaddr_cnt) {
577 		end_synchronized_op(pi, 1);
578 		return (ENOSPC);
579 	}
580 	rc = t4_change_mac(sc, sc->mbox, pi->viid, pi->xact_addr_filt, ucaddr,
581 			   true, &pi->smt_idx);
582 	if (rc < 0)
583 		rc = -rc;
584 	else {
585 		pi->macaddr_cnt++;
586 		pi->xact_addr_filt = rc;
587 		rc = 0;
588 	}
589 	end_synchronized_op(pi, 1);
590 
591 	return (rc);
592 }
593 
594 int
595 t4_addmac(void *arg, const uint8_t *ucaddr)
596 {
597 	return (t4_mc_unicst(arg, ucaddr));
598 }
599 
600 static int
601 t4_remmac(void *arg, const uint8_t *mac_addr)
602 {
603 	struct port_info *pi = arg;
604 	int rc;
605 
606 	rc = begin_synchronized_op(pi, 1, 1);
607 	if (rc != 0)
608 		return (rc);
609 
610 	pi->macaddr_cnt--;
611 	end_synchronized_op(pi, 1);
612 
613 	return (0);
614 }
615 
616 /*
617  * Callback funtion for MAC layer to register all groups.
618  */
619 void
620 t4_fill_group(void *arg, mac_ring_type_t rtype, const int rg_index,
621 	      mac_group_info_t *infop, mac_group_handle_t gh)
622 {
623 	struct port_info *pi = arg;
624 
625 	switch (rtype) {
626 	case MAC_RING_TYPE_RX: {
627 		infop->mgi_driver = (mac_group_driver_t)arg;
628 		infop->mgi_start = NULL;
629 		infop->mgi_stop = NULL;
630 		infop->mgi_addmac = t4_addmac;
631 		infop->mgi_remmac = t4_remmac;
632 		infop->mgi_count = pi->nrxq;
633 		break;
634 	}
635 	case MAC_RING_TYPE_TX:
636 	default:
637 		ASSERT(0);
638 		break;
639 	}
640 }
641 
642 static int
643 t4_ring_start(mac_ring_driver_t rh, uint64_t mr_gen_num)
644 {
645 	struct sge_rxq *rxq = (struct sge_rxq *)rh;
646 
647 	RXQ_LOCK(rxq);
648 	rxq->ring_gen_num = mr_gen_num;
649 	RXQ_UNLOCK(rxq);
650 	return (0);
651 }
652 
653 /*
654  * Enable interrupt on the specificed rx ring.
655  */
656 int
657 t4_ring_intr_enable(mac_intr_handle_t intrh)
658 {
659 	struct sge_rxq *rxq = (struct sge_rxq *)intrh;
660 	struct adapter *sc = rxq->port->adapter;
661 	struct sge_iq *iq;
662 
663 	iq = &rxq->iq;
664 	RXQ_LOCK(rxq);
665 	iq->polling = 0;
666 	iq->state = IQS_IDLE;
667 	t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS),
668 		     V_SEINTARM(iq->intr_params) | V_INGRESSQID(iq->cntxt_id));
669 	RXQ_UNLOCK(rxq);
670 	return (0);
671 }
672 
673 /*
674  * Disable interrupt on the specificed rx ring.
675  */
676 int
677 t4_ring_intr_disable(mac_intr_handle_t intrh)
678 {
679 	struct sge_rxq *rxq = (struct sge_rxq *)intrh;
680 	struct sge_iq *iq;
681 
682 	/* Nothing to be done here wrt interrupt, as it
683 	 * will not fire, until we write back to
684 	 * A_SGE_PF_GTS.SEIntArm in t4_ring_intr_enable.
685 	 */
686 
687 	iq = &rxq->iq;
688 	RXQ_LOCK(rxq);
689 	iq->polling = 1;
690 	iq->state = IQS_BUSY;
691 	RXQ_UNLOCK(rxq);
692 	return (0);
693 }
694 
695 mblk_t *
696 t4_poll_ring(void *arg, int n_bytes)
697 {
698 	struct sge_rxq *rxq = (struct sge_rxq *)arg;
699 	mblk_t *mp = NULL;
700 
701 	ASSERT(n_bytes >= 0);
702 	if (n_bytes == 0)
703 		return (NULL);
704 
705 	RXQ_LOCK(rxq);
706 	mp = t4_ring_rx(rxq, n_bytes);
707 	RXQ_UNLOCK(rxq);
708 
709 	return (mp);
710 }
711 
712 /*
713  * Retrieve a value for one of the statistics for a particular rx ring
714  */
715 int
716 t4_rx_stat(mac_ring_driver_t rh, uint_t stat, uint64_t *val)
717 {
718 	struct sge_rxq *rxq = (struct sge_rxq *)rh;
719 
720 	switch (stat) {
721 	case MAC_STAT_RBYTES:
722 		*val = rxq->rxbytes;
723 		break;
724 
725 	case MAC_STAT_IPACKETS:
726 		*val = rxq->rxpkts;
727 		break;
728 
729 	default:
730 		*val = 0;
731 		return (ENOTSUP);
732 	}
733 
734 	return (0);
735 }
736 
737 /*
738  * Retrieve a value for one of the statistics for a particular tx ring
739  */
740 int
741 t4_tx_stat(mac_ring_driver_t rh, uint_t stat, uint64_t *val)
742 {
743 	struct sge_txq *txq = (struct sge_txq *)rh;
744 
745 	switch (stat) {
746 	case MAC_STAT_RBYTES:
747 		*val = txq->txbytes;
748 		break;
749 
750 	case MAC_STAT_IPACKETS:
751 		*val = txq->txpkts;
752 		break;
753 
754 	default:
755 		*val = 0;
756 		return (ENOTSUP);
757 	}
758 
759 	return (0);
760 }
761 
762 /*
763  * Callback funtion for MAC layer to register all rings
764  * for given ring_group, noted by group_index.
765  * Since we have only one group, ring index becomes
766  * absolute index.
767  */
768 void
769 t4_fill_ring(void *arg, mac_ring_type_t rtype, const int group_index,
770 	     const int ring_index, mac_ring_info_t *infop, mac_ring_handle_t rh)
771 {
772 	struct port_info *pi = arg;
773 	mac_intr_t *mintr;
774 
775 	switch (rtype) {
776 	case MAC_RING_TYPE_RX: {
777 		struct sge_rxq *rxq;
778 
779 		rxq = &pi->adapter->sge.rxq[pi->first_rxq + ring_index];
780 		rxq->ring_handle = rh;
781 
782 		infop->mri_driver = (mac_ring_driver_t)rxq;
783 		infop->mri_start = t4_ring_start;
784 		infop->mri_stop = NULL;
785 		infop->mri_poll = t4_poll_ring;
786 		infop->mri_stat = t4_rx_stat;
787 
788 		mintr = &infop->mri_intr;
789 		mintr->mi_handle = (mac_intr_handle_t)rxq;
790 		mintr->mi_enable = t4_ring_intr_enable;
791 		mintr->mi_disable = t4_ring_intr_disable;
792 
793 		break;
794 	}
795 	case MAC_RING_TYPE_TX: {
796 		struct sge_txq *txq = &pi->adapter->sge.txq[pi->first_txq + ring_index];
797 		txq->ring_handle = rh;
798 		infop->mri_driver = (mac_ring_driver_t)txq;
799 		infop->mri_start = NULL;
800 		infop->mri_stop = NULL;
801 		infop->mri_tx = t4_eth_tx;
802 		infop->mri_stat = t4_tx_stat;
803 		break;
804 	}
805 	default:
806 		ASSERT(0);
807 		break;
808 	}
809 }
810 
811 mblk_t *
812 t4_mc_tx(void *arg, mblk_t *m)
813 {
814 	struct port_info *pi = arg;
815 	struct adapter *sc = pi->adapter;
816 	struct sge_txq *txq = &sc->sge.txq[pi->first_txq];
817 
818 	return (t4_eth_tx(txq, m));
819 }
820 
821 static int
822 t4_mc_transceiver_info(void *arg, uint_t id, mac_transceiver_info_t *infop)
823 {
824 	struct port_info *pi = arg;
825 
826 	if (id != 0 || infop == NULL)
827 		return (EINVAL);
828 
829 	switch (pi->mod_type) {
830 	case FW_PORT_MOD_TYPE_NONE:
831 		mac_transceiver_info_set_present(infop, B_FALSE);
832 		break;
833 	case FW_PORT_MOD_TYPE_NOTSUPPORTED:
834 		mac_transceiver_info_set_present(infop, B_TRUE);
835 		mac_transceiver_info_set_usable(infop, B_FALSE);
836 		break;
837 	default:
838 		mac_transceiver_info_set_present(infop, B_TRUE);
839 		mac_transceiver_info_set_usable(infop, B_TRUE);
840 		break;
841 	}
842 
843 	return (0);
844 }
845 
846 static int
847 t4_mc_transceiver_read(void *arg, uint_t id, uint_t page, void *bp,
848     size_t nbytes, off_t offset, size_t *nread)
849 {
850 	struct port_info *pi = arg;
851 	struct adapter *sc = pi->adapter;
852 	int rc;
853 	size_t i, maxread;
854 	/* LINTED: E_FUNC_VAR_UNUSED */
855 	struct fw_ldst_cmd ldst __unused;
856 
857 	if (id != 0 || bp == NULL || nbytes == 0 || nread == NULL ||
858 	    (page != 0xa0 && page != 0xa2) || offset < 0)
859 		return (EINVAL);
860 
861 	if (nbytes > 256 || offset >= 256 || (offset + nbytes > 256))
862 		return (EINVAL);
863 
864 	rc = begin_synchronized_op(pi, 0, 1);
865 	if (rc != 0)
866 		return (rc);
867 
868 	/*
869 	 * Firmware has a maximum size that we can read. Don't read more than it
870 	 * allows.
871 	 */
872 	maxread = sizeof (ldst.u.i2c.data);
873 	for (i = 0; i < nbytes; i += maxread) {
874 		size_t toread = MIN(maxread, nbytes - i);
875 		rc = -t4_i2c_rd(sc, sc->mbox, pi->port_id, page, offset, toread,
876 		    bp);
877 		if (rc != 0)
878 			break;
879 		offset += toread;
880 		bp = (void *)((uintptr_t)bp + toread);
881 	}
882 	end_synchronized_op(pi, 0);
883 	if (rc == 0)
884 		*nread = nbytes;
885 	return (rc);
886 }
887 
888 static int
889 t4_port_led_set(void *arg, mac_led_mode_t mode, uint_t flags)
890 {
891 	struct port_info *pi = arg;
892 	struct adapter *sc = pi->adapter;
893 	int val, rc;
894 
895 	if (flags != 0)
896 		return (EINVAL);
897 
898 	switch (mode) {
899 	case MAC_LED_DEFAULT:
900 		val = 0;
901 		break;
902 	case MAC_LED_IDENT:
903 		val = 0xffff;
904 		break;
905 
906 	default:
907 		return (ENOTSUP);
908 	}
909 
910 	rc = begin_synchronized_op(pi, 1, 1);
911 	if (rc != 0)
912 		return (rc);
913 	rc = -t4_identify_port(sc, sc->mbox, pi->viid, val);
914 	end_synchronized_op(pi, 1);
915 
916 	return (rc);
917 }
918 
919 static boolean_t
920 t4_mc_getcapab(void *arg, mac_capab_t cap, void *data)
921 {
922 	struct port_info *pi = arg;
923 	boolean_t status = B_TRUE;
924 	mac_capab_transceiver_t *mct;
925 	mac_capab_led_t *mcl;
926 
927 	switch (cap) {
928 	case MAC_CAPAB_HCKSUM:
929 		if (pi->features & CXGBE_HW_CSUM) {
930 			uint32_t *d = data;
931 			*d = HCKSUM_INET_FULL_V4 | HCKSUM_IPHDRCKSUM |
932 			    HCKSUM_INET_FULL_V6;
933 		} else
934 			status = B_FALSE;
935 		break;
936 
937 	case MAC_CAPAB_LSO:
938 		/* Enabling LSO requires Checksum offloading */
939 		if (pi->features & CXGBE_HW_LSO &&
940 		    pi->features & CXGBE_HW_CSUM) {
941 			mac_capab_lso_t *d = data;
942 
943 			d->lso_flags = LSO_TX_BASIC_TCP_IPV4 |
944 			    LSO_TX_BASIC_TCP_IPV6;
945 			d->lso_basic_tcp_ipv4.lso_max = 65535;
946 			d->lso_basic_tcp_ipv6.lso_max = 65535;
947 		} else
948 			status = B_FALSE;
949 		break;
950 
951 	case MAC_CAPAB_RINGS: {
952 		mac_capab_rings_t *cap_rings = data;
953 
954 		if (!pi->adapter->props.multi_rings) {
955 			status = B_FALSE;
956 			break;
957 		}
958 		switch (cap_rings->mr_type) {
959 		case MAC_RING_TYPE_RX:
960 			cap_rings->mr_group_type = MAC_GROUP_TYPE_STATIC;
961 			cap_rings->mr_rnum = pi->nrxq;
962 			cap_rings->mr_gnum = 1;
963 			cap_rings->mr_rget = t4_fill_ring;
964 			cap_rings->mr_gget = t4_fill_group;
965 			cap_rings->mr_gaddring = NULL;
966 			cap_rings->mr_gremring = NULL;
967 			break;
968 		case MAC_RING_TYPE_TX:
969 			cap_rings->mr_group_type = MAC_GROUP_TYPE_STATIC;
970 			cap_rings->mr_rnum = pi->ntxq;
971 			cap_rings->mr_gnum = 0;
972 			cap_rings->mr_rget = t4_fill_ring;
973 			cap_rings->mr_gget = NULL;
974 			break;
975 		}
976 		break;
977 	}
978 
979 	case MAC_CAPAB_TRANSCEIVER:
980 		mct = data;
981 
982 		mct->mct_flags = 0;
983 		mct->mct_ntransceivers = 1;
984 		mct->mct_info = t4_mc_transceiver_info;
985 		mct->mct_read = t4_mc_transceiver_read;
986 		break;
987 	case MAC_CAPAB_LED:
988 		mcl = data;
989 		mcl->mcl_flags = 0;
990 		mcl->mcl_modes = MAC_LED_DEFAULT | MAC_LED_IDENT;
991 		mcl->mcl_set = t4_port_led_set;
992 		break;
993 
994 	default:
995 		status = B_FALSE; /* cap not supported */
996 	}
997 
998 	return (status);
999 }
1000 
1001 static void t4_mac_link_caps_to_flowctrl(fw_port_cap32_t caps,
1002 					 link_flowctrl_t *fc)
1003 {
1004 	u8 pause_tx = 0, pause_rx = 0;
1005 
1006 	if (caps & FW_PORT_CAP32_FC_TX)
1007 		pause_tx = 1;
1008 
1009 	if (caps & FW_PORT_CAP32_FC_RX)
1010 		pause_rx = 1;
1011 
1012 	if (pause_rx & pause_tx)
1013 		*fc = LINK_FLOWCTRL_BI;
1014 	else if (pause_tx)
1015 		*fc = LINK_FLOWCTRL_TX;
1016 	else if (pause_rx)
1017 		*fc = LINK_FLOWCTRL_RX;
1018 	else
1019 		*fc = LINK_FLOWCTRL_NONE;
1020 }
1021 
1022 static int t4_mac_flowctrl_to_link_caps(struct port_info *pi,
1023 					link_flowctrl_t fc,
1024 					fw_port_cap32_t *new_caps)
1025 {
1026 	cc_pause_t pause = 0;
1027 
1028 	switch (fc) {
1029 	case LINK_FLOWCTRL_BI:
1030 		pause |= PAUSE_TX | PAUSE_RX;
1031 		break;
1032 	case LINK_FLOWCTRL_TX:
1033 		pause |= PAUSE_TX;
1034 		break;
1035 	case LINK_FLOWCTRL_RX:
1036 		pause |= PAUSE_RX;
1037 		break;
1038 	default:
1039 		break;
1040 	}
1041 
1042 	if (pi->link_cfg.admin_caps & FW_PORT_CAP32_ANEG)
1043 		pause |= PAUSE_AUTONEG;
1044 
1045 	return t4_link_set_pause(pi, pause, new_caps);
1046 }
1047 
1048 static link_fec_t t4_mac_port_caps_to_fec_cap(fw_port_cap32_t caps)
1049 {
1050 	link_fec_t link_fec = 0;
1051 
1052 	if (caps & FW_PORT_CAP32_FEC_RS)
1053 		link_fec |= LINK_FEC_RS;
1054 
1055 	if (caps & FW_PORT_CAP32_FEC_BASER_RS)
1056 		link_fec |= LINK_FEC_BASE_R;
1057 
1058 	if (caps & FW_PORT_CAP32_FEC_NO_FEC)
1059 		link_fec |= LINK_FEC_NONE;
1060 
1061 	if ((link_fec & (link_fec - 1)) &&
1062 	    !(caps & FW_PORT_CAP32_FORCE_FEC))
1063 		return LINK_FEC_AUTO;
1064 
1065 	return link_fec;
1066 }
1067 
1068 static void t4_mac_admin_caps_to_fec_cap(fw_port_cap32_t caps,
1069 					 link_fec_t *fec)
1070 {
1071 	*fec = t4_mac_port_caps_to_fec_cap(caps);
1072 }
1073 
1074 static void t4_mac_link_caps_to_fec_cap(fw_port_cap32_t caps,
1075 					link_fec_t *fec)
1076 {
1077 	link_fec_t link_fec;
1078 
1079 	caps &= ~FW_PORT_CAP32_FEC_NO_FEC;
1080 	link_fec = t4_mac_port_caps_to_fec_cap(caps);
1081 	*fec = link_fec ? link_fec : LINK_FEC_NONE;
1082 }
1083 
1084 static int t4_mac_fec_cap_to_link_caps(struct port_info *pi, link_fec_t v,
1085 				       fw_port_cap32_t *new_caps)
1086 {
1087 	cc_fec_t fec = 0;
1088 
1089 	if (v == LINK_FEC_AUTO) {
1090 		fec = FEC_AUTO;
1091 		goto out;
1092 	}
1093 
1094 	if (v & LINK_FEC_NONE) {
1095 		v &= ~LINK_FEC_NONE;
1096 		fec |= FEC_NONE;
1097 	}
1098 
1099 	if (v & LINK_FEC_RS) {
1100 		v &= ~LINK_FEC_RS;
1101 		fec |= FEC_RS;
1102 	}
1103 
1104 	if (v & LINK_FEC_BASE_R) {
1105 		v &= ~LINK_FEC_BASE_R;
1106 		fec |= FEC_BASER_RS;
1107 	}
1108 
1109 	if (v != 0)
1110 		return (-1);
1111 
1112 	ASSERT3S(fec, !=, 0);
1113 
1114 	fec |= FEC_FORCE;
1115 
1116 out:
1117 	return t4_link_set_fec(pi, fec, new_caps);
1118 }
1119 
1120 /* ARGSUSED */
1121 static int
1122 t4_mc_setprop(void *arg, const char *name, mac_prop_id_t id, uint_t size,
1123     const void *val)
1124 {
1125 	struct port_info *pi = arg;
1126 	struct adapter *sc = pi->adapter;
1127 	struct link_config *lc = &pi->link_cfg;
1128 	fw_port_cap32_t new_caps = lc->admin_caps;
1129 	int relink = 0, rx_mode = 0, rc = 0;
1130 	uint32_t v32 = *(uint32_t *)val;
1131 	uint8_t v8 = *(uint8_t *)val;
1132 	link_flowctrl_t fc;
1133 	link_fec_t fec;
1134 
1135 	switch (id) {
1136 	case MAC_PROP_AUTONEG:
1137 		rc = t4_link_set_autoneg(pi, v8, &new_caps);
1138 		relink = 1;
1139 		break;
1140 
1141 	case MAC_PROP_MTU:
1142 		if (v32 < 46 || v32 > MAX_MTU) {
1143 			rc = EINVAL;
1144 		} else if (v32 != pi->mtu) {
1145 			pi->mtu = v32;
1146 			(void) mac_maxsdu_update(pi->mh, v32);
1147 			rx_mode = 1;
1148 		}
1149 
1150 		break;
1151 
1152 	case MAC_PROP_FLOWCTRL:
1153 		fc = *(link_flowctrl_t *)val;
1154 		rc = t4_mac_flowctrl_to_link_caps(pi, fc, &new_caps);
1155 		relink = 1;
1156 		break;
1157 
1158 	case MAC_PROP_EN_FEC_CAP:
1159 		fec = *(link_fec_t *)val;
1160 		rc = t4_mac_fec_cap_to_link_caps(pi, fec, &new_caps);
1161 		relink = 1;
1162 		break;
1163 
1164 	case MAC_PROP_EN_100GFDX_CAP:
1165 		rc = t4_link_set_speed(pi, FW_PORT_CAP32_SPEED_100G, v8,
1166 				       &new_caps);
1167 		relink = 1;
1168 		break;
1169 
1170 	case MAC_PROP_EN_50GFDX_CAP:
1171 		rc = t4_link_set_speed(pi, FW_PORT_CAP32_SPEED_50G, v8,
1172 				       &new_caps);
1173 		relink = 1;
1174 		break;
1175 
1176 	case MAC_PROP_EN_40GFDX_CAP:
1177 		rc = t4_link_set_speed(pi, FW_PORT_CAP32_SPEED_40G, v8,
1178 				       &new_caps);
1179 		relink = 1;
1180 		break;
1181 
1182 	case MAC_PROP_EN_25GFDX_CAP:
1183 		rc = t4_link_set_speed(pi, FW_PORT_CAP32_SPEED_25G, v8,
1184 				       &new_caps);
1185 		relink = 1;
1186 		break;
1187 
1188 	case MAC_PROP_EN_10GFDX_CAP:
1189 		rc = t4_link_set_speed(pi, FW_PORT_CAP32_SPEED_10G, v8,
1190 				       &new_caps);
1191 		relink = 1;
1192 		break;
1193 
1194 	case MAC_PROP_EN_1000FDX_CAP:
1195 		rc = t4_link_set_speed(pi, FW_PORT_CAP32_SPEED_1G, v8,
1196 				       &new_caps);
1197 		relink = 1;
1198 		break;
1199 
1200 	case MAC_PROP_EN_100FDX_CAP:
1201 		rc = t4_link_set_speed(pi, FW_PORT_CAP32_SPEED_100M, v8,
1202 				       &new_caps);
1203 		relink = 1;
1204 		break;
1205 
1206 	case MAC_PROP_PRIVATE:
1207 		rc = setprop(pi, name, val);
1208 		break;
1209 
1210 	default:
1211 		rc = ENOTSUP;
1212 		break;
1213 	}
1214 
1215 	if (rc != 0)
1216 		return (rc);
1217 
1218 	if (isset(&sc->open_device_map, pi->port_id) != 0) {
1219 		if (relink != 0) {
1220 			rc = begin_synchronized_op(pi, 1, 1);
1221 			if (rc != 0)
1222 				return (rc);
1223 			rc = -t4_link_l1cfg(sc, sc->mbox, pi->tx_chan, lc,
1224 					    new_caps);
1225 			end_synchronized_op(pi, 1);
1226 			if (rc != 0) {
1227 				cxgb_printf(pi->dip, CE_WARN,
1228 					    "%s link config failed: %d",
1229 					    __func__, rc);
1230 				return (rc);
1231 			}
1232 		}
1233 
1234 		if (rx_mode != 0) {
1235 			rc = begin_synchronized_op(pi, 1, 1);
1236 			if (rc != 0)
1237 				return (rc);
1238 			rc = -t4_set_rxmode(sc, sc->mbox, pi->viid, v32, -1,
1239 			    -1, -1, -1, false);
1240 			end_synchronized_op(pi, 1);
1241 			if (rc != 0) {
1242 				cxgb_printf(pi->dip, CE_WARN,
1243 				    "set_rxmode failed: %d", rc);
1244 				return (rc);
1245 			}
1246 		}
1247 	}
1248 
1249 	if (relink != 0)
1250 		lc->admin_caps = new_caps;
1251 
1252 	return (0);
1253 }
1254 
1255 static int
1256 t4_mc_getprop(void *arg, const char *name, mac_prop_id_t id, uint_t size,
1257     void *val)
1258 {
1259 	struct port_info *pi = arg;
1260 	struct link_config *lc = &pi->link_cfg;
1261 	uint8_t *u = val;
1262 	int rc = 0;
1263 
1264 	switch (id) {
1265 	case MAC_PROP_DUPLEX:
1266 		*(link_duplex_t *)val = lc->link_ok ? LINK_DUPLEX_FULL :
1267 		    LINK_DUPLEX_UNKNOWN;
1268 		break;
1269 
1270 	case MAC_PROP_SPEED:
1271 		if (lc->link_ok != 0) {
1272 			*(uint64_t *)val = t4_link_fwcap_to_speed(lc->link_caps);
1273 			*(uint64_t *)val *= 1000000;
1274 		} else {
1275 			*(uint64_t *)val = 0;
1276 		}
1277 		break;
1278 
1279 	case MAC_PROP_STATUS:
1280 		*(link_state_t *)val = lc->link_ok ? LINK_STATE_UP :
1281 		    LINK_STATE_DOWN;
1282 		break;
1283 
1284 	case MAC_PROP_AUTONEG:
1285 		*u = !!(lc->link_caps & FW_PORT_CAP32_ANEG);
1286 		break;
1287 
1288 	case MAC_PROP_MTU:
1289 		*(uint32_t *)val = pi->mtu;
1290 		break;
1291 
1292 	case MAC_PROP_FLOWCTRL:
1293 		t4_mac_link_caps_to_flowctrl(lc->link_caps, val);
1294 		break;
1295 
1296 	case MAC_PROP_ADV_FEC_CAP:
1297 		t4_mac_link_caps_to_fec_cap(lc->link_caps, val);
1298 		break;
1299 
1300 	case MAC_PROP_EN_FEC_CAP:
1301 		t4_mac_admin_caps_to_fec_cap(lc->admin_caps, val);
1302 		break;
1303 
1304 	case MAC_PROP_ADV_100GFDX_CAP:
1305 		*u = !!(lc->link_caps & FW_PORT_CAP32_SPEED_100G);
1306 		break;
1307 
1308 	case MAC_PROP_EN_100GFDX_CAP:
1309 		*u = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_100G);
1310 		break;
1311 
1312 	case MAC_PROP_ADV_50GFDX_CAP:
1313 		*u = !!(lc->link_caps & FW_PORT_CAP32_SPEED_50G);
1314 		break;
1315 
1316 	case MAC_PROP_EN_50GFDX_CAP:
1317 		*u = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_50G);
1318 		break;
1319 
1320 	case MAC_PROP_ADV_40GFDX_CAP:
1321 		*u = !!(lc->link_caps & FW_PORT_CAP32_SPEED_40G);
1322 		break;
1323 
1324 	case MAC_PROP_EN_40GFDX_CAP:
1325 		*u = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_40G);
1326 		break;
1327 
1328 	case MAC_PROP_ADV_25GFDX_CAP:
1329 		*u = !!(lc->link_caps & FW_PORT_CAP32_SPEED_25G);
1330 		break;
1331 
1332 	case MAC_PROP_EN_25GFDX_CAP:
1333 		*u = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_25G);
1334 		break;
1335 
1336 	case MAC_PROP_ADV_10GFDX_CAP:
1337 		*u = !!(lc->link_caps & FW_PORT_CAP32_SPEED_10G);
1338 		break;
1339 
1340 	case MAC_PROP_EN_10GFDX_CAP:
1341 		*u = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_10G);
1342 		break;
1343 
1344 	case MAC_PROP_ADV_1000FDX_CAP:
1345 		*u = !!(lc->link_caps & FW_PORT_CAP32_SPEED_1G);
1346 		break;
1347 
1348 	case MAC_PROP_EN_1000FDX_CAP:
1349 		*u = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_1G);
1350 		break;
1351 
1352 	case MAC_PROP_ADV_100FDX_CAP:
1353 		*u = !!(lc->link_caps & FW_PORT_CAP32_SPEED_100M);
1354 		break;
1355 
1356 	case MAC_PROP_EN_100FDX_CAP:
1357 		*u = !!(lc->admin_caps & FW_PORT_CAP32_SPEED_100M);
1358 		break;
1359 
1360 	case MAC_PROP_PRIVATE:
1361 		return (getprop(pi, name, size, val));
1362 
1363 	default:
1364 		return (ENOTSUP);
1365 	}
1366 
1367 	return (rc);
1368 }
1369 
1370 static void
1371 t4_mc_propinfo(void *arg, const char *name, mac_prop_id_t id,
1372     mac_prop_info_handle_t ph)
1373 {
1374 	struct port_info *pi = arg;
1375 	struct link_config *lc = &pi->link_cfg;
1376 
1377 	switch (id) {
1378 	case MAC_PROP_DUPLEX:
1379 	case MAC_PROP_SPEED:
1380 	case MAC_PROP_STATUS:
1381 		mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1382 		break;
1383 
1384 	case MAC_PROP_AUTONEG:
1385 		if (lc->pcaps & FW_PORT_CAP32_ANEG)
1386 			mac_prop_info_set_default_uint8(ph, 1);
1387 		else
1388 			mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1389 		break;
1390 
1391 	case MAC_PROP_MTU:
1392 		mac_prop_info_set_range_uint32(ph, 46, MAX_MTU);
1393 		break;
1394 
1395 	case MAC_PROP_FLOWCTRL:
1396 		mac_prop_info_set_default_link_flowctrl(ph, LINK_FLOWCTRL_BI);
1397 		break;
1398 
1399 	case MAC_PROP_EN_FEC_CAP:
1400 		mac_prop_info_set_default_fec(ph, LINK_FEC_AUTO);
1401 		break;
1402 
1403 	case MAC_PROP_ADV_FEC_CAP:
1404 		mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1405 		mac_prop_info_set_default_fec(ph, LINK_FEC_AUTO);
1406 		break;
1407 
1408 	case MAC_PROP_EN_100GFDX_CAP:
1409 		if (lc->pcaps & FW_PORT_CAP32_SPEED_100G)
1410 			mac_prop_info_set_default_uint8(ph, 1);
1411 		else
1412 			mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1413 		break;
1414 
1415 	case MAC_PROP_EN_50GFDX_CAP:
1416 		if (lc->pcaps & FW_PORT_CAP32_SPEED_50G)
1417 			mac_prop_info_set_default_uint8(ph, 1);
1418 		else
1419 			mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1420 		break;
1421 
1422 	case MAC_PROP_EN_40GFDX_CAP:
1423 		if (lc->pcaps & FW_PORT_CAP32_SPEED_40G)
1424 			mac_prop_info_set_default_uint8(ph, 1);
1425 		else
1426 			mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1427 		break;
1428 
1429 	case MAC_PROP_EN_25GFDX_CAP:
1430 		if (lc->pcaps & FW_PORT_CAP32_SPEED_25G)
1431 			mac_prop_info_set_default_uint8(ph, 1);
1432 		else
1433 			mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1434 		break;
1435 
1436 	case MAC_PROP_EN_10GFDX_CAP:
1437 		if (lc->pcaps & FW_PORT_CAP32_SPEED_10G)
1438 			mac_prop_info_set_default_uint8(ph, 1);
1439 		else
1440 			mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1441 		break;
1442 
1443 	case MAC_PROP_EN_1000FDX_CAP:
1444 		if (lc->pcaps & FW_PORT_CAP32_SPEED_1G)
1445 			mac_prop_info_set_default_uint8(ph, 1);
1446 		else
1447 			mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1448 		break;
1449 
1450 	case MAC_PROP_EN_100FDX_CAP:
1451 		if (lc->pcaps & FW_PORT_CAP32_SPEED_100M)
1452 			mac_prop_info_set_default_uint8(ph, 1);
1453 		else
1454 			mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1455 		break;
1456 
1457 	case MAC_PROP_ADV_100GFDX_CAP:
1458 	case MAC_PROP_ADV_50GFDX_CAP:
1459 	case MAC_PROP_ADV_40GFDX_CAP:
1460 	case MAC_PROP_ADV_25GFDX_CAP:
1461 	case MAC_PROP_ADV_10GFDX_CAP:
1462 	case MAC_PROP_ADV_1000FDX_CAP:
1463 	case MAC_PROP_ADV_100FDX_CAP:
1464 		mac_prop_info_set_perm(ph, MAC_PROP_PERM_READ);
1465 		break;
1466 
1467 	case MAC_PROP_PRIVATE:
1468 		propinfo(pi, name, ph);
1469 		break;
1470 
1471 	default:
1472 		break;
1473 	}
1474 }
1475 
1476 int
1477 begin_synchronized_op(struct port_info *pi, int hold, int waitok)
1478 {
1479 	struct adapter *sc = pi->adapter;
1480 	int rc = 0;
1481 
1482 	ADAPTER_LOCK(sc);
1483 	while (!IS_DOOMED(pi) && IS_BUSY(sc)) {
1484 		if (!waitok) {
1485 			rc = EBUSY;
1486 			goto failed;
1487 		} else if (cv_wait_sig(&sc->cv, &sc->lock) == 0) {
1488 			rc = EINTR;
1489 			goto failed;
1490 		}
1491 	}
1492 	if (IS_DOOMED(pi) != 0) {	/* shouldn't happen on Solaris */
1493 		rc = ENXIO;
1494 		goto failed;
1495 	}
1496 	ASSERT(!IS_BUSY(sc));
1497 	/* LINTED: E_CONSTANT_CONDITION */
1498 	SET_BUSY(sc);
1499 
1500 	if (!hold)
1501 		ADAPTER_UNLOCK(sc);
1502 
1503 	return (0);
1504 failed:
1505 	ADAPTER_UNLOCK(sc);
1506 	return (rc);
1507 }
1508 
1509 void
1510 end_synchronized_op(struct port_info *pi, int held)
1511 {
1512 	struct adapter *sc = pi->adapter;
1513 
1514 	if (!held)
1515 		ADAPTER_LOCK(sc);
1516 
1517 	ADAPTER_LOCK_ASSERT_OWNED(sc);
1518 	ASSERT(IS_BUSY(sc));
1519 	/* LINTED: E_CONSTANT_CONDITION */
1520 	CLR_BUSY(sc);
1521 	cv_signal(&sc->cv);
1522 	ADAPTER_UNLOCK(sc);
1523 }
1524 
1525 static int
1526 t4_init_synchronized(struct port_info *pi)
1527 {
1528 	struct adapter *sc = pi->adapter;
1529 	int rc = 0;
1530 
1531 	ADAPTER_LOCK_ASSERT_NOTOWNED(sc);
1532 
1533 	if (isset(&sc->open_device_map, pi->port_id) != 0)
1534 		return (0);	/* already running */
1535 
1536 	if (!(sc->flags & FULL_INIT_DONE) &&
1537 	    ((rc = adapter_full_init(sc)) != 0))
1538 		return (rc);	/* error message displayed already */
1539 
1540 	if (!(pi->flags & PORT_INIT_DONE)) {
1541 		rc = port_full_init(pi);
1542 		if (rc != 0)
1543 			return (rc); /* error message displayed already */
1544 	} else
1545 		enable_port_queues(pi);
1546 
1547 	rc = -t4_set_rxmode(sc, sc->mbox, pi->viid, pi->mtu, 0, 0, 1, 0, false);
1548 	if (rc != 0) {
1549 		cxgb_printf(pi->dip, CE_WARN, "set_rxmode failed: %d", rc);
1550 		goto done;
1551 	}
1552 	rc = t4_change_mac(sc, sc->mbox, pi->viid, pi->xact_addr_filt,
1553 	    pi->hw_addr, true, &pi->smt_idx);
1554 	if (rc < 0) {
1555 		cxgb_printf(pi->dip, CE_WARN, "change_mac failed: %d", rc);
1556 		rc = -rc;
1557 		goto done;
1558 	} else
1559 		/* LINTED: E_ASSIGN_NARROW_CONV */
1560 		pi->xact_addr_filt = rc;
1561 
1562 	rc = -t4_link_l1cfg(sc, sc->mbox, pi->tx_chan, &pi->link_cfg,
1563 			    pi->link_cfg.admin_caps);
1564 	if (rc != 0) {
1565 		cxgb_printf(pi->dip, CE_WARN, "start_link failed: %d", rc);
1566 		goto done;
1567 	}
1568 
1569 	rc = -t4_enable_vi(sc, sc->mbox, pi->viid, true, true);
1570 	if (rc != 0) {
1571 		cxgb_printf(pi->dip, CE_WARN, "enable_vi failed: %d", rc);
1572 		goto done;
1573 	}
1574 
1575 	/* all ok */
1576 	setbit(&sc->open_device_map, pi->port_id);
1577 done:
1578 	if (rc != 0)
1579 		(void) t4_uninit_synchronized(pi);
1580 
1581 	return (rc);
1582 }
1583 
1584 /*
1585  * Idempotent.
1586  */
1587 static int
1588 t4_uninit_synchronized(struct port_info *pi)
1589 {
1590 	struct adapter *sc = pi->adapter;
1591 	int rc;
1592 
1593 	ADAPTER_LOCK_ASSERT_NOTOWNED(sc);
1594 
1595 	/*
1596 	 * Disable the VI so that all its data in either direction is discarded
1597 	 * by the MPS.  Leave everything else (the queues, interrupts, and 1Hz
1598 	 * tick) intact as the TP can deliver negative advice or data that it's
1599 	 * holding in its RAM (for an offloaded connection) even after the VI is
1600 	 * disabled.
1601 	 */
1602 	rc = -t4_enable_vi(sc, sc->mbox, pi->viid, false, false);
1603 	if (rc != 0) {
1604 		cxgb_printf(pi->dip, CE_WARN, "disable_vi failed: %d", rc);
1605 		return (rc);
1606 	}
1607 
1608 	disable_port_queues(pi);
1609 
1610 	clrbit(&sc->open_device_map, pi->port_id);
1611 
1612 	pi->link_cfg.link_ok = 0;
1613 	mac_link_update(pi->mh, LINK_STATE_UNKNOWN);
1614 
1615 	return (0);
1616 }
1617 
1618 static void
1619 propinfo(struct port_info *pi, const char *name, mac_prop_info_handle_t ph)
1620 {
1621 	struct adapter *sc = pi->adapter;
1622 	struct driver_properties *p = &sc->props;
1623 	struct link_config *lc = &pi->link_cfg;
1624 	int v;
1625 	char str[16];
1626 
1627 	if (strcmp(name, T4PROP_TMR_IDX) == 0)
1628 		v = is_10G_port(pi) ? p->tmr_idx_10g : p->tmr_idx_1g;
1629 	else if (strcmp(name, T4PROP_PKTC_IDX) == 0)
1630 		v = is_10G_port(pi) ? p->pktc_idx_10g : p->pktc_idx_1g;
1631 	else if (strcmp(name, T4PROP_HW_CSUM) == 0)
1632 		v = (pi->features & CXGBE_HW_CSUM) ? 1 : 0;
1633 	else if (strcmp(name, T4PROP_HW_LSO) == 0)
1634 		v = (pi->features & CXGBE_HW_LSO) ? 1 : 0;
1635 	else if (strcmp(name, T4PROP_TX_PAUSE) == 0)
1636 		v = (lc->pcaps & FW_PORT_CAP32_FC_TX) ? 1 : 0;
1637 	else if (strcmp(name, T4PROP_RX_PAUSE) == 0)
1638 		v = (lc->pcaps & FW_PORT_CAP32_FC_RX) ? 1 : 0;
1639 #if MAC_VERSION == 1
1640 	else if (strcmp(name, T4PROP_MTU) == 0)
1641 		v = ETHERMTU;
1642 #endif
1643 	else
1644 		return;
1645 
1646 	(void) snprintf(str, sizeof (str), "%d", v);
1647 	mac_prop_info_set_default_str(ph, str);
1648 }
1649 
1650 static int
1651 getprop(struct port_info *pi, const char *name, uint_t size, void *val)
1652 {
1653 	struct link_config *lc = &pi->link_cfg;
1654 	int v;
1655 
1656 	if (strcmp(name, T4PROP_TMR_IDX) == 0)
1657 		v = pi->tmr_idx;
1658 	else if (strcmp(name, T4PROP_PKTC_IDX) == 0)
1659 		v = pi->pktc_idx;
1660 	else if (strcmp(name, T4PROP_HW_CSUM) == 0)
1661 		v = (pi->features & CXGBE_HW_CSUM) ? 1 : 0;
1662 	else if (strcmp(name, T4PROP_HW_LSO) == 0)
1663 		v = (pi->features & CXGBE_HW_LSO) ? 1 : 0;
1664 	else if (strcmp(name, T4PROP_TX_PAUSE) == 0)
1665 		v = (lc->link_caps & FW_PORT_CAP32_FC_TX) ? 1 : 0;
1666 	else if (strcmp(name, T4PROP_RX_PAUSE) == 0)
1667 		v = (lc->link_caps & FW_PORT_CAP32_FC_RX) ? 1 : 0;
1668 #if MAC_VERSION == 1
1669 	else if (strcmp(name, T4PROP_MTU) == 0)
1670 		v = pi->mtu;
1671 #endif
1672 	else
1673 		return (ENOTSUP);
1674 
1675 	(void) snprintf(val, size, "%d", v);
1676 	return (0);
1677 }
1678 
1679 static int
1680 setprop(struct port_info *pi, const char *name, const void *val)
1681 {
1682 	struct link_config *lc = &pi->link_cfg;
1683 	fw_port_cap32_t new_caps = lc->admin_caps;
1684 	int i, rc = 0, relink = 0, rx_mode = 0;
1685 	struct adapter *sc = pi->adapter;
1686 	struct sge_rxq *rxq;
1687 	cc_pause_t fc = 0;
1688 	long v;
1689 
1690 	(void) ddi_strtol(val, NULL, 0, &v);
1691 
1692 	if (strcmp(name, T4PROP_TMR_IDX) == 0) {
1693 		if (v < 0 || v >= SGE_NTIMERS)
1694 			return (EINVAL);
1695 		if (v == pi->tmr_idx)
1696 			return (0);
1697 
1698 		/* LINTED: E_ASSIGN_NARROW_CONV */
1699 		pi->tmr_idx = v;
1700 		for_each_rxq(pi, i, rxq) {
1701 			rxq->iq.intr_params = V_QINTR_TIMER_IDX(v) |
1702 			    V_QINTR_CNT_EN(pi->pktc_idx >= 0);
1703 		}
1704 
1705 	} else if (strcmp(name, T4PROP_PKTC_IDX) == 0) {
1706 		if (v >= SGE_NCOUNTERS)
1707 			return (EINVAL);
1708 		if (v == pi->pktc_idx || (v < 0 && pi->pktc_idx == -1))
1709 			return (0);
1710 
1711 		/* LINTED: E_ASSIGN_NARROW_CONV */
1712 		pi->pktc_idx = v < 0 ? -1 : v;
1713 		for_each_rxq(pi, i, rxq) {
1714 			rxq->iq.intr_params = V_QINTR_TIMER_IDX(pi->tmr_idx) |
1715 			    /* takes effect right away */
1716 			    V_QINTR_CNT_EN(v >= 0);
1717 			/* LINTED: E_ASSIGN_NARROW_CONV */
1718 			rxq->iq.intr_pktc_idx = v; /* this needs fresh plumb */
1719 		}
1720 	} else if (strcmp(name, T4PROP_HW_CSUM) == 0) {
1721 		if (v != 0 && v != 1)
1722 			return (EINVAL);
1723 		if (v == 1)
1724 			pi->features |= CXGBE_HW_CSUM;
1725 		else
1726 			pi->features &= ~CXGBE_HW_CSUM;
1727 	} else if (strcmp(name, T4PROP_HW_LSO) == 0) {
1728 		if (v != 0 && v != 1)
1729 			return (EINVAL);
1730 		if (v == 1)
1731 			pi->features |= CXGBE_HW_LSO;
1732 		else
1733 			pi->features &= ~CXGBE_HW_LSO;
1734 	} else if (strcmp(name, T4PROP_TX_PAUSE) == 0) {
1735 		if (v != 0 && v != 1)
1736 			return (EINVAL);
1737 
1738 		if ((new_caps & FW_PORT_CAP32_FC_TX) && (v == 1))
1739 			fc |= PAUSE_TX;
1740 		if (new_caps & FW_PORT_CAP32_FC_RX)
1741 			fc |= PAUSE_RX;
1742 		if (lc->admin_caps & FW_PORT_CAP32_ANEG)
1743 			fc |= PAUSE_AUTONEG;
1744 
1745 		t4_link_set_pause(pi, fc, &new_caps);
1746 		relink = 1;
1747 
1748 	} else if (strcmp(name, T4PROP_RX_PAUSE) == 0) {
1749 		if (v != 0 && v != 1)
1750 			return (EINVAL);
1751 
1752 		if (new_caps & FW_PORT_CAP32_FC_TX)
1753 			fc |= PAUSE_TX;
1754 		if ((new_caps & FW_PORT_CAP32_FC_RX) && (v == 1))
1755 			fc |= PAUSE_RX;
1756 		if (lc->admin_caps & FW_PORT_CAP32_ANEG)
1757 			fc |= PAUSE_AUTONEG;
1758 
1759 		t4_link_set_pause(pi, fc, &new_caps);
1760 		relink = 1;
1761 	}
1762 #if MAC_VERSION == 1
1763 	else if (strcmp(name, T4PROP_MTU) == 0) {
1764 		if (v < 46 || v > MAX_MTU)
1765 			return (EINVAL);
1766 		if (v == pi->mtu)
1767 			return (0);
1768 
1769 		pi->mtu = (int)v;
1770 		(void) mac_maxsdu_update(pi->mh, v);
1771 		rx_mode = 1;
1772 	}
1773 #endif
1774 	else
1775 		return (ENOTSUP);
1776 
1777 	if (!(relink || rx_mode))
1778 		return (0);
1779 
1780 	/* If we are here, either relink or rx_mode is 1 */
1781 	if (isset(&sc->open_device_map, pi->port_id) != 0) {
1782 		if (relink != 0) {
1783 			rc = begin_synchronized_op(pi, 1, 1);
1784 			if (rc != 0)
1785 				return (rc);
1786 			rc = -t4_link_l1cfg(sc, sc->mbox, pi->tx_chan, lc,
1787 					    new_caps);
1788 			end_synchronized_op(pi, 1);
1789 			if (rc != 0) {
1790 				cxgb_printf(pi->dip, CE_WARN,
1791 					    "%s link config failed: %d",
1792 					    __func__, rc);
1793 				return (rc);
1794 			}
1795 		} else if (rx_mode != 0) {
1796 			rc = begin_synchronized_op(pi, 1, 1);
1797 			if (rc != 0)
1798 				return (rc);
1799 			rc = -t4_set_rxmode(sc, sc->mbox, pi->viid, v, -1, -1,
1800 			    -1, -1, false);
1801 			end_synchronized_op(pi, 1);
1802 			if (rc != 0)  {
1803 				cxgb_printf(pi->dip, CE_WARN,
1804 					    "set_rxmode failed: %d", rc);
1805 				return (rc);
1806 			}
1807 		}
1808 	}
1809 
1810 	if (relink != 0)
1811 		lc->admin_caps = new_caps;
1812 
1813 	return (0);
1814 }
1815 
1816 void
1817 t4_mc_init(struct port_info *pi)
1818 {
1819 	pi->props = t4_priv_props;
1820 }
1821 
1822 void
1823 t4_mc_cb_init(struct port_info *pi)
1824 {
1825 	if (pi->adapter->props.multi_rings)
1826 		pi->mc = &t4_m_ring_callbacks;
1827 	else
1828 		pi->mc = &t4_m_callbacks;
1829 }
1830 
1831 void
1832 t4_os_link_changed(struct adapter *sc, int idx, int link_stat)
1833 {
1834 	struct port_info *pi = sc->port[idx];
1835 
1836 	mac_link_update(pi->mh, link_stat ? LINK_STATE_UP : LINK_STATE_DOWN);
1837 }
1838 
1839 /* ARGSUSED */
1840 void
1841 t4_mac_rx(struct port_info *pi, struct sge_rxq *rxq, mblk_t *m)
1842 {
1843 	mac_rx(pi->mh, NULL, m);
1844 }
1845 
1846 void
1847 t4_mac_tx_update(struct port_info *pi, struct sge_txq *txq)
1848 {
1849 	if (pi->adapter->props.multi_rings)
1850 		mac_tx_ring_update(pi->mh, txq->ring_handle);
1851 	else
1852 		mac_tx_update(pi->mh);
1853 }
1854