xref: /freebsd/sys/dev/etherswitch/e6000sw/e6000sw.c (revision 162ae9c834f6d9f9cb443bd62cceb23e0b5fef48)
1 /*-
2  * Copyright (c) 2015 Semihalf
3  * Copyright (c) 2015 Stormshield
4  * Copyright (c) 2018-2019, Rubicon Communications, LLC (Netgate)
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/param.h>
33 #include <sys/bus.h>
34 #include <sys/errno.h>
35 #include <sys/kernel.h>
36 #include <sys/kthread.h>
37 #include <sys/module.h>
38 #include <sys/socket.h>
39 #include <sys/sockio.h>
40 
41 #include <net/if.h>
42 #include <net/if_media.h>
43 #include <net/if_types.h>
44 
45 #include <dev/etherswitch/etherswitch.h>
46 #include <dev/mii/mii.h>
47 #include <dev/mii/miivar.h>
48 
49 #include <dev/ofw/ofw_bus.h>
50 #include <dev/ofw/ofw_bus_subr.h>
51 
52 #include "e6000swreg.h"
53 #include "etherswitch_if.h"
54 #include "miibus_if.h"
55 #include "mdio_if.h"
56 
57 MALLOC_DECLARE(M_E6000SW);
58 MALLOC_DEFINE(M_E6000SW, "e6000sw", "e6000sw switch");
59 
60 #define	E6000SW_LOCK(_sc)		sx_xlock(&(_sc)->sx)
61 #define	E6000SW_UNLOCK(_sc)		sx_unlock(&(_sc)->sx)
62 #define	E6000SW_LOCK_ASSERT(_sc, _what)	sx_assert(&(_sc)->sx, (_what))
63 #define	E6000SW_TRYLOCK(_sc)		sx_tryxlock(&(_sc)->sx)
64 #define	E6000SW_WAITREADY(_sc, _reg, _bit)				\
65     e6000sw_waitready((_sc), REG_GLOBAL, (_reg), (_bit))
66 #define	E6000SW_WAITREADY2(_sc, _reg, _bit)				\
67     e6000sw_waitready((_sc), REG_GLOBAL2, (_reg), (_bit))
68 #define	MDIO_READ(dev, addr, reg)					\
69     MDIO_READREG(device_get_parent(dev), (addr), (reg))
70 #define	MDIO_WRITE(dev, addr, reg, val)					\
71     MDIO_WRITEREG(device_get_parent(dev), (addr), (reg), (val))
72 
73 
74 typedef struct e6000sw_softc {
75 	device_t		dev;
76 	phandle_t		node;
77 
78 	struct sx		sx;
79 	struct ifnet		*ifp[E6000SW_MAX_PORTS];
80 	char			*ifname[E6000SW_MAX_PORTS];
81 	device_t		miibus[E6000SW_MAX_PORTS];
82 	struct proc		*kproc;
83 
84 	int			vlans[E6000SW_NUM_VLANS];
85 	uint32_t		swid;
86 	uint32_t		vlan_mode;
87 	uint32_t		cpuports_mask;
88 	uint32_t		fixed_mask;
89 	uint32_t		fixed25_mask;
90 	uint32_t		ports_mask;
91 	int			phy_base;
92 	int			sw_addr;
93 	int			num_ports;
94 } e6000sw_softc_t;
95 
96 static etherswitch_info_t etherswitch_info = {
97 	.es_nports =		0,
98 	.es_nvlangroups =	0,
99 	.es_vlan_caps =		ETHERSWITCH_VLAN_PORT | ETHERSWITCH_VLAN_DOT1Q,
100 	.es_name =		"Marvell 6000 series switch"
101 };
102 
103 static void e6000sw_identify(driver_t *, device_t);
104 static int e6000sw_probe(device_t);
105 static int e6000sw_parse_fixed_link(e6000sw_softc_t *, phandle_t, uint32_t);
106 static int e6000sw_parse_ethernet(e6000sw_softc_t *, phandle_t, uint32_t);
107 static int e6000sw_attach(device_t);
108 static int e6000sw_detach(device_t);
109 static int e6000sw_read_xmdio(device_t, int, int, int);
110 static int e6000sw_write_xmdio(device_t, int, int, int, int);
111 static int e6000sw_readphy(device_t, int, int);
112 static int e6000sw_writephy(device_t, int, int, int);
113 static etherswitch_info_t* e6000sw_getinfo(device_t);
114 static int e6000sw_getconf(device_t, etherswitch_conf_t *);
115 static int e6000sw_setconf(device_t, etherswitch_conf_t *);
116 static void e6000sw_lock(device_t);
117 static void e6000sw_unlock(device_t);
118 static int e6000sw_getport(device_t, etherswitch_port_t *);
119 static int e6000sw_setport(device_t, etherswitch_port_t *);
120 static int e6000sw_set_vlan_mode(e6000sw_softc_t *, uint32_t);
121 static int e6000sw_readreg_wrapper(device_t, int);
122 static int e6000sw_writereg_wrapper(device_t, int, int);
123 static int e6000sw_readphy_wrapper(device_t, int, int);
124 static int e6000sw_writephy_wrapper(device_t, int, int, int);
125 static int e6000sw_getvgroup_wrapper(device_t, etherswitch_vlangroup_t *);
126 static int e6000sw_setvgroup_wrapper(device_t, etherswitch_vlangroup_t *);
127 static int e6000sw_setvgroup(device_t, etherswitch_vlangroup_t *);
128 static int e6000sw_getvgroup(device_t, etherswitch_vlangroup_t *);
129 static void e6000sw_setup(device_t, e6000sw_softc_t *);
130 static void e6000sw_tick(void *);
131 static void e6000sw_set_atustat(device_t, e6000sw_softc_t *, int, int);
132 static int e6000sw_atu_flush(device_t, e6000sw_softc_t *, int);
133 static int e6000sw_vtu_flush(e6000sw_softc_t *);
134 static int e6000sw_vtu_update(e6000sw_softc_t *, int, int, int, int, int);
135 static __inline void e6000sw_writereg(e6000sw_softc_t *, int, int, int);
136 static __inline uint32_t e6000sw_readreg(e6000sw_softc_t *, int, int);
137 static int e6000sw_ifmedia_upd(struct ifnet *);
138 static void e6000sw_ifmedia_sts(struct ifnet *, struct ifmediareq *);
139 static int e6000sw_atu_mac_table(device_t, e6000sw_softc_t *, struct atu_opt *,
140     int);
141 static int e6000sw_get_pvid(e6000sw_softc_t *, int, int *);
142 static void e6000sw_set_pvid(e6000sw_softc_t *, int, int);
143 static __inline bool e6000sw_is_cpuport(e6000sw_softc_t *, int);
144 static __inline bool e6000sw_is_fixedport(e6000sw_softc_t *, int);
145 static __inline bool e6000sw_is_fixed25port(e6000sw_softc_t *, int);
146 static __inline bool e6000sw_is_phyport(e6000sw_softc_t *, int);
147 static __inline bool e6000sw_is_portenabled(e6000sw_softc_t *, int);
148 static __inline struct mii_data *e6000sw_miiforphy(e6000sw_softc_t *,
149     unsigned int);
150 
151 static device_method_t e6000sw_methods[] = {
152 	/* device interface */
153 	DEVMETHOD(device_identify,		e6000sw_identify),
154 	DEVMETHOD(device_probe,			e6000sw_probe),
155 	DEVMETHOD(device_attach,		e6000sw_attach),
156 	DEVMETHOD(device_detach,		e6000sw_detach),
157 
158 	/* bus interface */
159 	DEVMETHOD(bus_add_child,		device_add_child_ordered),
160 
161 	/* mii interface */
162 	DEVMETHOD(miibus_readreg,		e6000sw_readphy),
163 	DEVMETHOD(miibus_writereg,		e6000sw_writephy),
164 
165 	/* etherswitch interface */
166 	DEVMETHOD(etherswitch_getinfo,		e6000sw_getinfo),
167 	DEVMETHOD(etherswitch_getconf,		e6000sw_getconf),
168 	DEVMETHOD(etherswitch_setconf,		e6000sw_setconf),
169 	DEVMETHOD(etherswitch_lock,		e6000sw_lock),
170 	DEVMETHOD(etherswitch_unlock,		e6000sw_unlock),
171 	DEVMETHOD(etherswitch_getport,		e6000sw_getport),
172 	DEVMETHOD(etherswitch_setport,		e6000sw_setport),
173 	DEVMETHOD(etherswitch_readreg,		e6000sw_readreg_wrapper),
174 	DEVMETHOD(etherswitch_writereg,		e6000sw_writereg_wrapper),
175 	DEVMETHOD(etherswitch_readphyreg,	e6000sw_readphy_wrapper),
176 	DEVMETHOD(etherswitch_writephyreg,	e6000sw_writephy_wrapper),
177 	DEVMETHOD(etherswitch_setvgroup,	e6000sw_setvgroup_wrapper),
178 	DEVMETHOD(etherswitch_getvgroup,	e6000sw_getvgroup_wrapper),
179 
180 	DEVMETHOD_END
181 };
182 
183 static devclass_t e6000sw_devclass;
184 
185 DEFINE_CLASS_0(e6000sw, e6000sw_driver, e6000sw_methods,
186     sizeof(e6000sw_softc_t));
187 
188 DRIVER_MODULE(e6000sw, mdio, e6000sw_driver, e6000sw_devclass, 0, 0);
189 DRIVER_MODULE(etherswitch, e6000sw, etherswitch_driver, etherswitch_devclass, 0,
190     0);
191 DRIVER_MODULE(miibus, e6000sw, miibus_driver, miibus_devclass, 0, 0);
192 MODULE_DEPEND(e6000sw, mdio, 1, 1, 1);
193 
194 
195 static void
196 e6000sw_identify(driver_t *driver, device_t parent)
197 {
198 
199 	if (device_find_child(parent, "e6000sw", -1) == NULL)
200 		BUS_ADD_CHILD(parent, 0, "e6000sw", -1);
201 }
202 
203 static int
204 e6000sw_probe(device_t dev)
205 {
206 	e6000sw_softc_t *sc;
207 	const char *description;
208 	phandle_t switch_node;
209 
210 	sc = device_get_softc(dev);
211 	switch_node = ofw_bus_find_compatible(OF_finddevice("/"),
212 	    "marvell,mv88e6085");
213 	if (switch_node == 0) {
214 		switch_node = ofw_bus_find_compatible(OF_finddevice("/"),
215 		    "marvell,mv88e6190");
216 
217 		if (switch_node == 0)
218 			return (ENXIO);
219 
220 		/*
221 		 * Trust DTS and fix the port register offset for the MV88E6190
222 		 * detection bellow.
223 		 */
224 		sc->swid = MV88E6190;
225 	}
226 
227 	if (bootverbose)
228 		device_printf(dev, "Found switch_node: 0x%x\n", switch_node);
229 
230 	sc->dev = dev;
231 	sc->node = switch_node;
232 
233 	if (OF_getencprop(sc->node, "reg", &sc->sw_addr,
234 	    sizeof(sc->sw_addr)) < 0)
235 		return (ENXIO);
236 	if (sc->sw_addr < 0 || sc->sw_addr > 32)
237 		return (ENXIO);
238 
239 	/*
240 	 * Create temporary lock, just to satisfy assertions,
241 	 * when obtaining the switch ID. Destroy immediately afterwards.
242 	 */
243 	sx_init(&sc->sx, "e6000sw_tmp");
244 	E6000SW_LOCK(sc);
245 	sc->swid = e6000sw_readreg(sc, REG_PORT(sc, 0), SWITCH_ID) & 0xfff0;
246 	E6000SW_UNLOCK(sc);
247 	sx_destroy(&sc->sx);
248 
249 	switch (sc->swid) {
250 	case MV88E6141:
251 		description = "Marvell 88E6141";
252 		sc->phy_base = 0x10;
253 		sc->num_ports = 6;
254 		break;
255 	case MV88E6341:
256 		description = "Marvell 88E6341";
257 		sc->phy_base = 0x10;
258 		sc->num_ports = 6;
259 		break;
260 	case MV88E6352:
261 		description = "Marvell 88E6352";
262 		sc->num_ports = 7;
263 		break;
264 	case MV88E6172:
265 		description = "Marvell 88E6172";
266 		sc->num_ports = 7;
267 		break;
268 	case MV88E6176:
269 		description = "Marvell 88E6176";
270 		sc->num_ports = 7;
271 		break;
272 	case MV88E6190:
273 		description = "Marvell 88E6190";
274 		sc->num_ports = 11;
275 		break;
276 	default:
277 		device_printf(dev, "Unrecognized device, id 0x%x.\n", sc->swid);
278 		return (ENXIO);
279 	}
280 
281 	device_set_desc(dev, description);
282 
283 	return (BUS_PROBE_DEFAULT);
284 }
285 
286 static int
287 e6000sw_parse_fixed_link(e6000sw_softc_t *sc, phandle_t node, uint32_t port)
288 {
289 	int speed;
290 	phandle_t fixed_link;
291 
292 	fixed_link = ofw_bus_find_child(node, "fixed-link");
293 
294 	if (fixed_link != 0) {
295 		sc->fixed_mask |= (1 << port);
296 
297 		if (OF_getencprop(fixed_link,
298 		    "speed", &speed, sizeof(speed)) < 0) {
299 			device_printf(sc->dev,
300 			    "Port %d has a fixed-link node without a speed "
301 			    "property\n", port);
302 			return (ENXIO);
303 		}
304 		if (speed == 2500 && (MVSWITCH(sc, MV88E6141) ||
305 		     MVSWITCH(sc, MV88E6341) || MVSWITCH(sc, MV88E6190)))
306 			sc->fixed25_mask |= (1 << port);
307 	}
308 
309 	return (0);
310 }
311 
312 static int
313 e6000sw_parse_ethernet(e6000sw_softc_t *sc, phandle_t port_handle, uint32_t port) {
314 	phandle_t switch_eth, switch_eth_handle;
315 
316 	if (OF_getencprop(port_handle, "ethernet", (void*)&switch_eth_handle,
317 	    sizeof(switch_eth_handle)) > 0) {
318 		if (switch_eth_handle > 0) {
319 			switch_eth = OF_node_from_xref(switch_eth_handle);
320 
321 			device_printf(sc->dev, "CPU port at %d\n", port);
322 			sc->cpuports_mask |= (1 << port);
323 
324 			return (e6000sw_parse_fixed_link(sc, switch_eth, port));
325 		} else
326 			device_printf(sc->dev,
327 				"Port %d has ethernet property but it points "
328 				"to an invalid location\n", port);
329 	}
330 
331 	return (0);
332 }
333 
334 static int
335 e6000sw_parse_child_fdt(e6000sw_softc_t *sc, phandle_t child, int *pport)
336 {
337 	uint32_t port;
338 
339 	if (pport == NULL)
340 		return (ENXIO);
341 
342 	if (OF_getencprop(child, "reg", (void *)&port, sizeof(port)) < 0)
343 		return (ENXIO);
344 	if (port >= sc->num_ports)
345 		return (ENXIO);
346 	*pport = port;
347 
348 	if (e6000sw_parse_fixed_link(sc, child, port) != 0)
349 		return (ENXIO);
350 
351 	if (e6000sw_parse_ethernet(sc, child, port) != 0)
352 		return (ENXIO);
353 
354 	if ((sc->fixed_mask & (1 << port)) != 0)
355 		device_printf(sc->dev, "fixed port at %d\n", port);
356 	else
357 		device_printf(sc->dev, "PHY at port %d\n", port);
358 
359 	return (0);
360 }
361 
362 static int
363 e6000sw_init_interface(e6000sw_softc_t *sc, int port)
364 {
365 	char name[IFNAMSIZ];
366 
367 	snprintf(name, IFNAMSIZ, "%sport", device_get_nameunit(sc->dev));
368 
369 	sc->ifp[port] = if_alloc(IFT_ETHER);
370 	if (sc->ifp[port] == NULL)
371 		return (ENOMEM);
372 	sc->ifp[port]->if_softc = sc;
373 	sc->ifp[port]->if_flags |= IFF_UP | IFF_BROADCAST |
374 	    IFF_DRV_RUNNING | IFF_SIMPLEX;
375 	sc->ifname[port] = malloc(strlen(name) + 1, M_E6000SW, M_NOWAIT);
376 	if (sc->ifname[port] == NULL) {
377 		if_free(sc->ifp[port]);
378 		return (ENOMEM);
379 	}
380 	memcpy(sc->ifname[port], name, strlen(name) + 1);
381 	if_initname(sc->ifp[port], sc->ifname[port], port);
382 
383 	return (0);
384 }
385 
386 static int
387 e6000sw_attach_miibus(e6000sw_softc_t *sc, int port)
388 {
389 	int err;
390 
391 	err = mii_attach(sc->dev, &sc->miibus[port], sc->ifp[port],
392 	    e6000sw_ifmedia_upd, e6000sw_ifmedia_sts, BMSR_DEFCAPMASK,
393 	    port + sc->phy_base, MII_OFFSET_ANY, 0);
394 	if (err != 0)
395 		return (err);
396 
397 	return (0);
398 }
399 
400 static void
401 e6000sw_serdes_power(device_t dev, int port, bool sgmii)
402 {
403 	uint32_t reg;
404 
405 	/* SGMII */
406 	reg = e6000sw_read_xmdio(dev, port, E6000SW_SERDES_DEV,
407 	    E6000SW_SERDES_SGMII_CTL);
408 	if (sgmii)
409 		reg &= ~E6000SW_SERDES_PDOWN;
410 	else
411 		reg |= E6000SW_SERDES_PDOWN;
412 	e6000sw_write_xmdio(dev, port, E6000SW_SERDES_DEV,
413 	    E6000SW_SERDES_SGMII_CTL, reg);
414 
415 	/* 10GBASE-R/10GBASE-X4/X2 */
416 	reg = e6000sw_read_xmdio(dev, port, E6000SW_SERDES_DEV,
417 	    E6000SW_SERDES_PCS_CTL1);
418 	if (sgmii)
419 		reg |= E6000SW_SERDES_PDOWN;
420 	else
421 		reg &= ~E6000SW_SERDES_PDOWN;
422 	e6000sw_write_xmdio(dev, port, E6000SW_SERDES_DEV,
423 	    E6000SW_SERDES_PCS_CTL1, reg);
424 }
425 
426 static int
427 e6000sw_attach(device_t dev)
428 {
429 	bool sgmii;
430 	e6000sw_softc_t *sc;
431 	phandle_t child, ports;
432 	int err, port;
433 	uint32_t reg;
434 
435 	err = 0;
436 	sc = device_get_softc(dev);
437 
438 	/*
439 	 * According to the Linux source code, all of the Switch IDs we support
440 	 * are multi_chip capable, and should go into multi-chip mode if the
441 	 * sw_addr != 0.
442 	 */
443 	if (MVSWITCH_MULTICHIP(sc))
444 		device_printf(dev, "multi-chip addressing mode (%#x)\n",
445 		    sc->sw_addr);
446 	else
447 		device_printf(dev, "single-chip addressing mode\n");
448 
449 	sx_init(&sc->sx, "e6000sw");
450 
451 	E6000SW_LOCK(sc);
452 	e6000sw_setup(dev, sc);
453 
454 	ports = ofw_bus_find_child(sc->node, "ports");
455 
456 	if (ports == 0) {
457 		device_printf(dev, "failed to parse DTS: no ports found for "
458 		    "switch\n");
459 		return (ENXIO);
460 	}
461 
462 	for (child = OF_child(ports); child != 0; child = OF_peer(child)) {
463 		err = e6000sw_parse_child_fdt(sc, child, &port);
464 		if (err != 0) {
465 			device_printf(sc->dev, "failed to parse DTS\n");
466 			goto out_fail;
467 		}
468 
469 		/* Port is in use. */
470 		sc->ports_mask |= (1 << port);
471 
472 		err = e6000sw_init_interface(sc, port);
473 		if (err != 0) {
474 			device_printf(sc->dev, "failed to init interface\n");
475 			goto out_fail;
476 		}
477 
478 		if (e6000sw_is_fixedport(sc, port)) {
479 			/* Link must be down to change speed force value. */
480 			reg = e6000sw_readreg(sc, REG_PORT(sc, port),
481 			    PSC_CONTROL);
482 			reg &= ~PSC_CONTROL_LINK_UP;
483 			reg |= PSC_CONTROL_FORCED_LINK;
484 			e6000sw_writereg(sc, REG_PORT(sc, port), PSC_CONTROL,
485 			    reg);
486 
487 			/*
488 			 * Force speed, full-duplex, EEE off and flow-control
489 			 * on.
490 			 */
491 			reg &= ~(PSC_CONTROL_SPD2500 | PSC_CONTROL_ALT_SPD |
492 			    PSC_CONTROL_FORCED_FC | PSC_CONTROL_FC_ON |
493 			    PSC_CONTROL_FORCED_EEE);
494 			if (e6000sw_is_fixed25port(sc, port))
495 				reg |= PSC_CONTROL_SPD2500;
496 			else
497 				reg |= PSC_CONTROL_SPD1000;
498 			if (MVSWITCH(sc, MV88E6190) &&
499 			    e6000sw_is_fixed25port(sc, port))
500 				reg |= PSC_CONTROL_ALT_SPD;
501 			reg |= PSC_CONTROL_FORCED_DPX | PSC_CONTROL_FULLDPX |
502 			    PSC_CONTROL_FORCED_LINK | PSC_CONTROL_LINK_UP |
503 			    PSC_CONTROL_FORCED_SPD;
504 			if (!MVSWITCH(sc, MV88E6190))
505 				reg |= PSC_CONTROL_FORCED_FC | PSC_CONTROL_FC_ON;
506 			if (MVSWITCH(sc, MV88E6141) ||
507 			    MVSWITCH(sc, MV88E6341) ||
508 			    MVSWITCH(sc, MV88E6190))
509 				reg |= PSC_CONTROL_FORCED_EEE;
510 			e6000sw_writereg(sc, REG_PORT(sc, port), PSC_CONTROL,
511 			    reg);
512 			/* Power on the SERDES interfaces. */
513 			if (MVSWITCH(sc, MV88E6190) &&
514 			    (port == 9 || port == 10)) {
515 				if (e6000sw_is_fixed25port(sc, port))
516 					sgmii = false;
517 				else
518 					sgmii = true;
519 				e6000sw_serdes_power(sc->dev, port, sgmii);
520 			}
521 		}
522 
523 		/* Don't attach miibus at CPU/fixed ports */
524 		if (!e6000sw_is_phyport(sc, port))
525 			continue;
526 
527 		err = e6000sw_attach_miibus(sc, port);
528 		if (err != 0) {
529 			device_printf(sc->dev, "failed to attach miibus\n");
530 			goto out_fail;
531 		}
532 	}
533 
534 	etherswitch_info.es_nports = sc->num_ports;
535 
536 	/* Default to port vlan. */
537 	e6000sw_set_vlan_mode(sc, ETHERSWITCH_VLAN_PORT);
538 
539 	reg = e6000sw_readreg(sc, REG_GLOBAL, SWITCH_GLOBAL_STATUS);
540 	if (reg & SWITCH_GLOBAL_STATUS_IR)
541 		device_printf(dev, "switch is ready.\n");
542 	E6000SW_UNLOCK(sc);
543 
544 	bus_generic_probe(dev);
545 	bus_generic_attach(dev);
546 
547 	kproc_create(e6000sw_tick, sc, &sc->kproc, 0, 0, "e6000sw tick kproc");
548 
549 	return (0);
550 
551 out_fail:
552 	E6000SW_UNLOCK(sc);
553 	e6000sw_detach(dev);
554 
555 	return (err);
556 }
557 
558 static int
559 e6000sw_waitready(e6000sw_softc_t *sc, uint32_t phy, uint32_t reg,
560     uint32_t busybit)
561 {
562 	int i;
563 
564 	for (i = 0; i < E6000SW_RETRIES; i++) {
565 		if ((e6000sw_readreg(sc, phy, reg) & busybit) == 0)
566 			return (0);
567 		DELAY(1);
568 	}
569 
570 	return (1);
571 }
572 
573 /* XMDIO/Clause 45 access. */
574 static int
575 e6000sw_read_xmdio(device_t dev, int phy, int devaddr, int devreg)
576 {
577 	e6000sw_softc_t *sc;
578 	uint32_t reg;
579 
580 	sc = device_get_softc(dev);
581 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
582 	if (E6000SW_WAITREADY2(sc, SMI_PHY_CMD_REG, SMI_CMD_BUSY)) {
583 		device_printf(dev, "Timeout while waiting for switch\n");
584 		return (ETIMEDOUT);
585 	}
586 
587 	reg = devaddr & SMI_CMD_REG_ADDR_MASK;
588 	reg |= (phy << SMI_CMD_DEV_ADDR) & SMI_CMD_DEV_ADDR_MASK;
589 
590 	/* Load C45 register address. */
591 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_DATA_REG, devreg);
592 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_CMD_REG,
593 	    reg | SMI_CMD_OP_C45_ADDR);
594 	if (E6000SW_WAITREADY2(sc, SMI_PHY_CMD_REG, SMI_CMD_BUSY)) {
595 		device_printf(dev, "Timeout while waiting for switch\n");
596 		return (ETIMEDOUT);
597 	}
598 
599 	/* Start C45 read operation. */
600 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_CMD_REG,
601 	    reg | SMI_CMD_OP_C45_READ);
602 	if (E6000SW_WAITREADY2(sc, SMI_PHY_CMD_REG, SMI_CMD_BUSY)) {
603 		device_printf(dev, "Timeout while waiting for switch\n");
604 		return (ETIMEDOUT);
605 	}
606 
607 	/* Read C45 data. */
608 	reg = e6000sw_readreg(sc, REG_GLOBAL2, SMI_PHY_DATA_REG);
609 
610 	return (reg & PHY_DATA_MASK);
611 }
612 
613 static int
614 e6000sw_write_xmdio(device_t dev, int phy, int devaddr, int devreg, int val)
615 {
616 	e6000sw_softc_t *sc;
617 	uint32_t reg;
618 
619 	sc = device_get_softc(dev);
620 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
621 	if (E6000SW_WAITREADY2(sc, SMI_PHY_CMD_REG, SMI_CMD_BUSY)) {
622 		device_printf(dev, "Timeout while waiting for switch\n");
623 		return (ETIMEDOUT);
624 	}
625 
626 	reg = devaddr & SMI_CMD_REG_ADDR_MASK;
627 	reg |= (phy << SMI_CMD_DEV_ADDR) & SMI_CMD_DEV_ADDR_MASK;
628 
629 	/* Load C45 register address. */
630 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_DATA_REG, devreg);
631 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_CMD_REG,
632 	    reg | SMI_CMD_OP_C45_ADDR);
633 	if (E6000SW_WAITREADY2(sc, SMI_PHY_CMD_REG, SMI_CMD_BUSY)) {
634 		device_printf(dev, "Timeout while waiting for switch\n");
635 		return (ETIMEDOUT);
636 	}
637 
638 	/* Load data and start the C45 write operation. */
639 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_DATA_REG, devreg);
640 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_CMD_REG,
641 	    reg | SMI_CMD_OP_C45_WRITE);
642 
643 	return (0);
644 }
645 
646 /*
647  * PHY registers are paged. Put page index in reg 22 (accessible from every
648  * page), then access specific register.
649  */
650 static int
651 e6000sw_readphy(device_t dev, int phy, int reg)
652 {
653 	e6000sw_softc_t *sc;
654 	uint32_t val;
655 
656 	sc = device_get_softc(dev);
657 	if (!e6000sw_is_phyport(sc, phy) || reg >= E6000SW_NUM_PHY_REGS) {
658 		device_printf(dev, "Wrong register address.\n");
659 		return (EINVAL);
660 	}
661 
662 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
663 	if (E6000SW_WAITREADY2(sc, SMI_PHY_CMD_REG, SMI_CMD_BUSY)) {
664 		device_printf(dev, "Timeout while waiting for switch\n");
665 		return (ETIMEDOUT);
666 	}
667 
668 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_CMD_REG,
669 	    SMI_CMD_OP_C22_READ | (reg & SMI_CMD_REG_ADDR_MASK) |
670 	    ((phy << SMI_CMD_DEV_ADDR) & SMI_CMD_DEV_ADDR_MASK));
671 	if (E6000SW_WAITREADY2(sc, SMI_PHY_CMD_REG, SMI_CMD_BUSY)) {
672 		device_printf(dev, "Timeout while waiting for switch\n");
673 		return (ETIMEDOUT);
674 	}
675 
676 	val = e6000sw_readreg(sc, REG_GLOBAL2, SMI_PHY_DATA_REG);
677 
678 	return (val & PHY_DATA_MASK);
679 }
680 
681 static int
682 e6000sw_writephy(device_t dev, int phy, int reg, int data)
683 {
684 	e6000sw_softc_t *sc;
685 
686 	sc = device_get_softc(dev);
687 	if (!e6000sw_is_phyport(sc, phy) || reg >= E6000SW_NUM_PHY_REGS) {
688 		device_printf(dev, "Wrong register address.\n");
689 		return (EINVAL);
690 	}
691 
692 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
693 	if (E6000SW_WAITREADY2(sc, SMI_PHY_CMD_REG, SMI_CMD_BUSY)) {
694 		device_printf(dev, "Timeout while waiting for switch\n");
695 		return (ETIMEDOUT);
696 	}
697 
698 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_DATA_REG,
699 	    data & PHY_DATA_MASK);
700 	e6000sw_writereg(sc, REG_GLOBAL2, SMI_PHY_CMD_REG,
701 	    SMI_CMD_OP_C22_WRITE | (reg & SMI_CMD_REG_ADDR_MASK) |
702 	    ((phy << SMI_CMD_DEV_ADDR) & SMI_CMD_DEV_ADDR_MASK));
703 
704 	return (0);
705 }
706 
707 static int
708 e6000sw_detach(device_t dev)
709 {
710 	int phy;
711 	e6000sw_softc_t *sc;
712 
713 	sc = device_get_softc(dev);
714 	bus_generic_detach(dev);
715 	sx_destroy(&sc->sx);
716 	for (phy = 0; phy < sc->num_ports; phy++) {
717 		if (sc->miibus[phy] != NULL)
718 			device_delete_child(dev, sc->miibus[phy]);
719 		if (sc->ifp[phy] != NULL)
720 			if_free(sc->ifp[phy]);
721 		if (sc->ifname[phy] != NULL)
722 			free(sc->ifname[phy], M_E6000SW);
723 	}
724 
725 	return (0);
726 }
727 
728 static etherswitch_info_t*
729 e6000sw_getinfo(device_t dev)
730 {
731 
732 	return (&etherswitch_info);
733 }
734 
735 static int
736 e6000sw_getconf(device_t dev, etherswitch_conf_t *conf)
737 {
738 	struct e6000sw_softc *sc;
739 
740 	/* Return the VLAN mode. */
741 	sc = device_get_softc(dev);
742 	conf->cmd = ETHERSWITCH_CONF_VLAN_MODE;
743 	conf->vlan_mode = sc->vlan_mode;
744 
745 	return (0);
746 }
747 
748 static int
749 e6000sw_setconf(device_t dev, etherswitch_conf_t *conf)
750 {
751 	struct e6000sw_softc *sc;
752 
753 	/* Set the VLAN mode. */
754 	sc = device_get_softc(dev);
755 	if (conf->cmd & ETHERSWITCH_CONF_VLAN_MODE) {
756 		E6000SW_LOCK(sc);
757 		e6000sw_set_vlan_mode(sc, conf->vlan_mode);
758 		E6000SW_UNLOCK(sc);
759 	}
760 
761 	return (0);
762 }
763 
764 static void
765 e6000sw_lock(device_t dev)
766 {
767 	struct e6000sw_softc *sc;
768 
769 	sc = device_get_softc(dev);
770 
771 	E6000SW_LOCK_ASSERT(sc, SA_UNLOCKED);
772 	E6000SW_LOCK(sc);
773 }
774 
775 static void
776 e6000sw_unlock(device_t dev)
777 {
778 	struct e6000sw_softc *sc;
779 
780 	sc = device_get_softc(dev);
781 
782 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
783 	E6000SW_UNLOCK(sc);
784 }
785 
786 static int
787 e6000sw_getport(device_t dev, etherswitch_port_t *p)
788 {
789 	struct mii_data *mii;
790 	int err;
791 	struct ifmediareq *ifmr;
792 	uint32_t reg;
793 
794 	e6000sw_softc_t *sc = device_get_softc(dev);
795 	E6000SW_LOCK_ASSERT(sc, SA_UNLOCKED);
796 
797 	if (p->es_port >= sc->num_ports || p->es_port < 0)
798 		return (EINVAL);
799 	if (!e6000sw_is_portenabled(sc, p->es_port))
800 		return (0);
801 
802 	E6000SW_LOCK(sc);
803 	e6000sw_get_pvid(sc, p->es_port, &p->es_pvid);
804 
805 	/* Port flags. */
806 	reg = e6000sw_readreg(sc, REG_PORT(sc, p->es_port), PORT_CONTROL2);
807 	if (reg & PORT_CONTROL2_DISC_TAGGED)
808 		p->es_flags |= ETHERSWITCH_PORT_DROPTAGGED;
809 	if (reg & PORT_CONTROL2_DISC_UNTAGGED)
810 		p->es_flags |= ETHERSWITCH_PORT_DROPUNTAGGED;
811 
812 	err = 0;
813 	if (e6000sw_is_fixedport(sc, p->es_port)) {
814 		if (e6000sw_is_cpuport(sc, p->es_port))
815 			p->es_flags |= ETHERSWITCH_PORT_CPU;
816 		ifmr = &p->es_ifmr;
817 		ifmr->ifm_status = IFM_ACTIVE | IFM_AVALID;
818 		ifmr->ifm_count = 0;
819 		if (e6000sw_is_fixed25port(sc, p->es_port))
820 			ifmr->ifm_active = IFM_2500_T;
821 		else
822 			ifmr->ifm_active = IFM_1000_T;
823 		ifmr->ifm_active |= IFM_ETHER | IFM_FDX;
824 		ifmr->ifm_current = ifmr->ifm_active;
825 		ifmr->ifm_mask = 0;
826 	} else {
827 		mii = e6000sw_miiforphy(sc, p->es_port);
828 		err = ifmedia_ioctl(mii->mii_ifp, &p->es_ifr,
829 		    &mii->mii_media, SIOCGIFMEDIA);
830 	}
831 	E6000SW_UNLOCK(sc);
832 
833 	return (err);
834 }
835 
836 static int
837 e6000sw_setport(device_t dev, etherswitch_port_t *p)
838 {
839 	e6000sw_softc_t *sc;
840 	int err;
841 	struct mii_data *mii;
842 	uint32_t reg;
843 
844 	sc = device_get_softc(dev);
845 	E6000SW_LOCK_ASSERT(sc, SA_UNLOCKED);
846 
847 	if (p->es_port >= sc->num_ports || p->es_port < 0)
848 		return (EINVAL);
849 	if (!e6000sw_is_portenabled(sc, p->es_port))
850 		return (0);
851 
852 	E6000SW_LOCK(sc);
853 
854 	/* Port flags. */
855 	reg = e6000sw_readreg(sc, REG_PORT(sc, p->es_port), PORT_CONTROL2);
856 	if (p->es_flags & ETHERSWITCH_PORT_DROPTAGGED)
857 		reg |= PORT_CONTROL2_DISC_TAGGED;
858 	else
859 		reg &= ~PORT_CONTROL2_DISC_TAGGED;
860 	if (p->es_flags & ETHERSWITCH_PORT_DROPUNTAGGED)
861 		reg |= PORT_CONTROL2_DISC_UNTAGGED;
862 	else
863 		reg &= ~PORT_CONTROL2_DISC_UNTAGGED;
864 	e6000sw_writereg(sc, REG_PORT(sc, p->es_port), PORT_CONTROL2, reg);
865 
866 	err = 0;
867 	if (p->es_pvid != 0)
868 		e6000sw_set_pvid(sc, p->es_port, p->es_pvid);
869 	if (e6000sw_is_phyport(sc, p->es_port)) {
870 		mii = e6000sw_miiforphy(sc, p->es_port);
871 		err = ifmedia_ioctl(mii->mii_ifp, &p->es_ifr, &mii->mii_media,
872 		    SIOCSIFMEDIA);
873 	}
874 	E6000SW_UNLOCK(sc);
875 
876 	return (err);
877 }
878 
879 static __inline void
880 e6000sw_port_vlan_assign(e6000sw_softc_t *sc, int port, uint32_t fid,
881     uint32_t members)
882 {
883 	uint32_t reg;
884 
885 	reg = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_VLAN_MAP);
886 	reg &= ~(PORT_MASK(sc) | PORT_VLAN_MAP_FID_MASK);
887 	reg |= members & PORT_MASK(sc) & ~(1 << port);
888 	reg |= (fid << PORT_VLAN_MAP_FID) & PORT_VLAN_MAP_FID_MASK;
889 	e6000sw_writereg(sc, REG_PORT(sc, port), PORT_VLAN_MAP, reg);
890 	reg = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_CONTROL1);
891 	reg &= ~PORT_CONTROL1_FID_MASK;
892 	reg |= (fid >> 4) & PORT_CONTROL1_FID_MASK;
893 	e6000sw_writereg(sc, REG_PORT(sc, port), PORT_CONTROL1, reg);
894 }
895 
896 static int
897 e6000sw_init_vlan(struct e6000sw_softc *sc)
898 {
899 	int i, port, ret;
900 	uint32_t members;
901 
902 	/* Disable all ports */
903 	for (port = 0; port < sc->num_ports; port++) {
904 		ret = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_CONTROL);
905 		e6000sw_writereg(sc, REG_PORT(sc, port), PORT_CONTROL,
906 		    (ret & ~PORT_CONTROL_ENABLE));
907 	}
908 
909 	/* Flush VTU. */
910 	e6000sw_vtu_flush(sc);
911 
912 	for (port = 0; port < sc->num_ports; port++) {
913 		/* Reset the egress and frame mode. */
914 		ret = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_CONTROL);
915 		ret &= ~(PORT_CONTROL_EGRESS | PORT_CONTROL_FRAME);
916 		e6000sw_writereg(sc, REG_PORT(sc, port), PORT_CONTROL, ret);
917 
918 		/* Set the the 802.1q mode. */
919 		ret = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_CONTROL2);
920 		ret &= ~PORT_CONTROL2_DOT1Q;
921 		if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q)
922 			ret |= PORT_CONTROL2_DOT1Q;
923 		e6000sw_writereg(sc, REG_PORT(sc, port), PORT_CONTROL2, ret);
924 	}
925 
926 	for (port = 0; port < sc->num_ports; port++) {
927 		if (!e6000sw_is_portenabled(sc, port))
928 			continue;
929 
930 		ret = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_VID);
931 
932 		/* Set port priority */
933 		ret &= ~PORT_VID_PRIORITY_MASK;
934 
935 		/* Set VID map */
936 		ret &= ~PORT_VID_DEF_VID_MASK;
937 		if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q)
938 			ret |= 1;
939 		else
940 			ret |= (port + 1);
941 		e6000sw_writereg(sc, REG_PORT(sc, port), PORT_VID, ret);
942 	}
943 
944 	/* Assign the member ports to each origin port. */
945 	for (port = 0; port < sc->num_ports; port++) {
946 		members = 0;
947 		if (e6000sw_is_portenabled(sc, port)) {
948 			for (i = 0; i < sc->num_ports; i++) {
949 				if (i == port || !e6000sw_is_portenabled(sc, i))
950 					continue;
951 				members |= (1 << i);
952 			}
953 		}
954 		/* Default to FID 0. */
955 		e6000sw_port_vlan_assign(sc, port, 0, members);
956 	}
957 
958 	/* Reset internal VLAN table. */
959 	for (i = 0; i < nitems(sc->vlans); i++)
960 		sc->vlans[i] = 0;
961 
962 	/* Create default VLAN (1). */
963 	if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
964 		sc->vlans[0] = 1;
965 		e6000sw_vtu_update(sc, 0, sc->vlans[0], 1, 0, sc->ports_mask);
966 	}
967 
968 	/* Enable all ports */
969 	for (port = 0; port < sc->num_ports; port++) {
970 		if (!e6000sw_is_portenabled(sc, port))
971 			continue;
972 		ret = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_CONTROL);
973 		e6000sw_writereg(sc, REG_PORT(sc, port), PORT_CONTROL,
974 		    (ret | PORT_CONTROL_ENABLE));
975 	}
976 
977 	return (0);
978 }
979 
980 static int
981 e6000sw_set_vlan_mode(struct e6000sw_softc *sc, uint32_t mode)
982 {
983 
984 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
985 	switch (mode) {
986 	case ETHERSWITCH_VLAN_PORT:
987 		sc->vlan_mode = ETHERSWITCH_VLAN_PORT;
988 		etherswitch_info.es_nvlangroups = sc->num_ports;
989 		return (e6000sw_init_vlan(sc));
990 		break;
991 	case ETHERSWITCH_VLAN_DOT1Q:
992 		sc->vlan_mode = ETHERSWITCH_VLAN_DOT1Q;
993 		etherswitch_info.es_nvlangroups = E6000SW_NUM_VLANS;
994 		return (e6000sw_init_vlan(sc));
995 		break;
996 	default:
997 		return (EINVAL);
998 	}
999 }
1000 
1001 /*
1002  * Registers in this switch are divided into sections, specified in
1003  * documentation. So as to access any of them, section index and reg index
1004  * is necessary. etherswitchcfg uses only one variable, so indexes were
1005  * compressed into addr_reg: 32 * section_index + reg_index.
1006  */
1007 static int
1008 e6000sw_readreg_wrapper(device_t dev, int addr_reg)
1009 {
1010 	e6000sw_softc_t *sc;
1011 
1012 	sc = device_get_softc(dev);
1013 	if ((addr_reg > (REG_GLOBAL2 * 32 + REG_NUM_MAX)) ||
1014 	    (addr_reg < (REG_PORT(sc, 0) * 32))) {
1015 		device_printf(dev, "Wrong register address.\n");
1016 		return (EINVAL);
1017 	}
1018 
1019 	return (e6000sw_readreg(device_get_softc(dev), addr_reg / 32,
1020 	    addr_reg % 32));
1021 }
1022 
1023 static int
1024 e6000sw_writereg_wrapper(device_t dev, int addr_reg, int val)
1025 {
1026 	e6000sw_softc_t *sc;
1027 
1028 	sc = device_get_softc(dev);
1029 	if ((addr_reg > (REG_GLOBAL2 * 32 + REG_NUM_MAX)) ||
1030 	    (addr_reg < (REG_PORT(sc, 0) * 32))) {
1031 		device_printf(dev, "Wrong register address.\n");
1032 		return (EINVAL);
1033 	}
1034 	e6000sw_writereg(device_get_softc(dev), addr_reg / 5,
1035 	    addr_reg % 32, val);
1036 
1037 	return (0);
1038 }
1039 
1040 /*
1041  * These wrappers are necessary because PHY accesses from etherswitchcfg
1042  * need to be synchronized with locks, while miibus PHY accesses do not.
1043  */
1044 static int
1045 e6000sw_readphy_wrapper(device_t dev, int phy, int reg)
1046 {
1047 	e6000sw_softc_t *sc;
1048 	int ret;
1049 
1050 	sc = device_get_softc(dev);
1051 	E6000SW_LOCK_ASSERT(sc, SA_UNLOCKED);
1052 
1053 	E6000SW_LOCK(sc);
1054 	ret = e6000sw_readphy(dev, phy, reg);
1055 	E6000SW_UNLOCK(sc);
1056 
1057 	return (ret);
1058 }
1059 
1060 static int
1061 e6000sw_writephy_wrapper(device_t dev, int phy, int reg, int data)
1062 {
1063 	e6000sw_softc_t *sc;
1064 	int ret;
1065 
1066 	sc = device_get_softc(dev);
1067 	E6000SW_LOCK_ASSERT(sc, SA_UNLOCKED);
1068 
1069 	E6000SW_LOCK(sc);
1070 	ret = e6000sw_writephy(dev, phy, reg, data);
1071 	E6000SW_UNLOCK(sc);
1072 
1073 	return (ret);
1074 }
1075 
1076 /*
1077  * setvgroup/getvgroup called from etherswitchfcg need to be locked,
1078  * while internal calls do not.
1079  */
1080 static int
1081 e6000sw_setvgroup_wrapper(device_t dev, etherswitch_vlangroup_t *vg)
1082 {
1083 	e6000sw_softc_t *sc;
1084 	int ret;
1085 
1086 	sc = device_get_softc(dev);
1087 	E6000SW_LOCK_ASSERT(sc, SA_UNLOCKED);
1088 
1089 	E6000SW_LOCK(sc);
1090 	ret = e6000sw_setvgroup(dev, vg);
1091 	E6000SW_UNLOCK(sc);
1092 
1093 	return (ret);
1094 }
1095 
1096 static int
1097 e6000sw_getvgroup_wrapper(device_t dev, etherswitch_vlangroup_t *vg)
1098 {
1099 	e6000sw_softc_t *sc;
1100 	int ret;
1101 
1102 	sc = device_get_softc(dev);
1103 	E6000SW_LOCK_ASSERT(sc, SA_UNLOCKED);
1104 
1105 	E6000SW_LOCK(sc);
1106 	ret = e6000sw_getvgroup(dev, vg);
1107 	E6000SW_UNLOCK(sc);
1108 
1109 	return (ret);
1110 }
1111 
1112 static int
1113 e6000sw_set_port_vlan(e6000sw_softc_t *sc, etherswitch_vlangroup_t *vg)
1114 {
1115 	uint32_t port;
1116 
1117 	port = vg->es_vlangroup;
1118 	if (port > sc->num_ports)
1119 		return (EINVAL);
1120 
1121 	if (vg->es_member_ports != vg->es_untagged_ports) {
1122 		device_printf(sc->dev, "Tagged ports not supported.\n");
1123 		return (EINVAL);
1124 	}
1125 
1126 	e6000sw_port_vlan_assign(sc, port, 0, vg->es_untagged_ports);
1127 	vg->es_vid = port | ETHERSWITCH_VID_VALID;
1128 
1129 	return (0);
1130 }
1131 
1132 static int
1133 e6000sw_set_dot1q_vlan(e6000sw_softc_t *sc, etherswitch_vlangroup_t *vg)
1134 {
1135 	int i, vlan;
1136 
1137 	vlan = vg->es_vid & ETHERSWITCH_VID_MASK;
1138 
1139 	/* Set VLAN to '0' removes it from table. */
1140 	if (vlan == 0) {
1141 		e6000sw_vtu_update(sc, VTU_PURGE,
1142 		    sc->vlans[vg->es_vlangroup], 0, 0, 0);
1143 		sc->vlans[vg->es_vlangroup] = 0;
1144 		return (0);
1145 	}
1146 
1147 	/* Is this VLAN already in table ? */
1148 	for (i = 0; i < etherswitch_info.es_nvlangroups; i++)
1149 		if (i != vg->es_vlangroup && vlan == sc->vlans[i])
1150 			return (EINVAL);
1151 
1152 	sc->vlans[vg->es_vlangroup] = vlan;
1153 	e6000sw_vtu_update(sc, 0, vlan, vg->es_vlangroup + 1,
1154 	    vg->es_member_ports & sc->ports_mask,
1155 	    vg->es_untagged_ports & sc->ports_mask);
1156 
1157 	return (0);
1158 }
1159 
1160 static int
1161 e6000sw_setvgroup(device_t dev, etherswitch_vlangroup_t *vg)
1162 {
1163 	e6000sw_softc_t *sc;
1164 
1165 	sc = device_get_softc(dev);
1166 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
1167 
1168 	if (sc->vlan_mode == ETHERSWITCH_VLAN_PORT)
1169 		return (e6000sw_set_port_vlan(sc, vg));
1170 	else if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q)
1171 		return (e6000sw_set_dot1q_vlan(sc, vg));
1172 
1173 	return (EINVAL);
1174 }
1175 
1176 static int
1177 e6000sw_get_port_vlan(e6000sw_softc_t *sc, etherswitch_vlangroup_t *vg)
1178 {
1179 	uint32_t port, reg;
1180 
1181 	port = vg->es_vlangroup;
1182 	if (port > sc->num_ports)
1183 		return (EINVAL);
1184 
1185 	if (!e6000sw_is_portenabled(sc, port)) {
1186 		vg->es_vid = port;
1187 		return (0);
1188 	}
1189 
1190 	reg = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_VLAN_MAP);
1191 	vg->es_untagged_ports = vg->es_member_ports = reg & PORT_MASK(sc);
1192 	vg->es_vid = port | ETHERSWITCH_VID_VALID;
1193 	vg->es_fid = (reg & PORT_VLAN_MAP_FID_MASK) >> PORT_VLAN_MAP_FID;
1194 	reg = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_CONTROL1);
1195 	vg->es_fid |= (reg & PORT_CONTROL1_FID_MASK) << 4;
1196 
1197 	return (0);
1198 }
1199 
1200 static int
1201 e6000sw_get_dot1q_vlan(e6000sw_softc_t *sc, etherswitch_vlangroup_t *vg)
1202 {
1203 	int i, port;
1204 	uint32_t reg;
1205 
1206 	vg->es_fid = 0;
1207 	vg->es_vid = sc->vlans[vg->es_vlangroup];
1208 	vg->es_untagged_ports = vg->es_member_ports = 0;
1209 	if (vg->es_vid == 0)
1210 		return (0);
1211 
1212 	if (E6000SW_WAITREADY(sc, VTU_OPERATION, VTU_BUSY)) {
1213 		device_printf(sc->dev, "VTU unit is busy, cannot access\n");
1214 		return (EBUSY);
1215 	}
1216 
1217 	e6000sw_writereg(sc, REG_GLOBAL, VTU_VID, vg->es_vid - 1);
1218 
1219 	reg = e6000sw_readreg(sc, REG_GLOBAL, VTU_OPERATION);
1220 	reg &= ~VTU_OP_MASK;
1221 	reg |= VTU_GET_NEXT | VTU_BUSY;
1222 	e6000sw_writereg(sc, REG_GLOBAL, VTU_OPERATION, reg);
1223 	if (E6000SW_WAITREADY(sc, VTU_OPERATION, VTU_BUSY)) {
1224 		device_printf(sc->dev, "Timeout while reading\n");
1225 		return (EBUSY);
1226 	}
1227 
1228 	reg = e6000sw_readreg(sc, REG_GLOBAL, VTU_VID);
1229 	if (reg == VTU_VID_MASK || (reg & VTU_VID_VALID) == 0)
1230 		return (EINVAL);
1231 	if ((reg & VTU_VID_MASK) != vg->es_vid)
1232 		return (EINVAL);
1233 
1234 	vg->es_vid |= ETHERSWITCH_VID_VALID;
1235 	reg = e6000sw_readreg(sc, REG_GLOBAL, VTU_DATA);
1236 	for (i = 0; i < sc->num_ports; i++) {
1237 		if (i == VTU_PPREG(sc))
1238 			reg = e6000sw_readreg(sc, REG_GLOBAL, VTU_DATA2);
1239 		port = (reg >> VTU_PORT(sc, i)) & VTU_PORT_MASK;
1240 		if (port == VTU_PORT_UNTAGGED) {
1241 			vg->es_untagged_ports |= (1 << i);
1242 			vg->es_member_ports |= (1 << i);
1243 		} else if (port == VTU_PORT_TAGGED)
1244 			vg->es_member_ports |= (1 << i);
1245 	}
1246 
1247 	return (0);
1248 }
1249 
1250 static int
1251 e6000sw_getvgroup(device_t dev, etherswitch_vlangroup_t *vg)
1252 {
1253 	e6000sw_softc_t *sc;
1254 
1255 	sc = device_get_softc(dev);
1256 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
1257 
1258 	if (sc->vlan_mode == ETHERSWITCH_VLAN_PORT)
1259 		return (e6000sw_get_port_vlan(sc, vg));
1260 	else if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q)
1261 		return (e6000sw_get_dot1q_vlan(sc, vg));
1262 
1263 	return (EINVAL);
1264 }
1265 
1266 static __inline struct mii_data*
1267 e6000sw_miiforphy(e6000sw_softc_t *sc, unsigned int phy)
1268 {
1269 
1270 	if (!e6000sw_is_phyport(sc, phy))
1271 		return (NULL);
1272 
1273 	return (device_get_softc(sc->miibus[phy]));
1274 }
1275 
1276 static int
1277 e6000sw_ifmedia_upd(struct ifnet *ifp)
1278 {
1279 	e6000sw_softc_t *sc;
1280 	struct mii_data *mii;
1281 
1282 	sc = ifp->if_softc;
1283 	mii = e6000sw_miiforphy(sc, ifp->if_dunit);
1284 	if (mii == NULL)
1285 		return (ENXIO);
1286 	mii_mediachg(mii);
1287 
1288 	return (0);
1289 }
1290 
1291 static void
1292 e6000sw_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
1293 {
1294 	e6000sw_softc_t *sc;
1295 	struct mii_data *mii;
1296 
1297 	sc = ifp->if_softc;
1298 	mii = e6000sw_miiforphy(sc, ifp->if_dunit);
1299 
1300 	if (mii == NULL)
1301 		return;
1302 
1303 	mii_pollstat(mii);
1304 	ifmr->ifm_active = mii->mii_media_active;
1305 	ifmr->ifm_status = mii->mii_media_status;
1306 }
1307 
1308 static int
1309 e6000sw_smi_waitready(e6000sw_softc_t *sc, int phy)
1310 {
1311 	int i;
1312 
1313 	for (i = 0; i < E6000SW_SMI_TIMEOUT; i++) {
1314 		if ((MDIO_READ(sc->dev, phy, SMI_CMD) & SMI_CMD_BUSY) == 0)
1315 			return (0);
1316 		DELAY(1);
1317 	}
1318 
1319 	return (1);
1320 }
1321 
1322 static __inline uint32_t
1323 e6000sw_readreg(e6000sw_softc_t *sc, int addr, int reg)
1324 {
1325 
1326 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
1327 
1328 	if (!MVSWITCH_MULTICHIP(sc))
1329 		return (MDIO_READ(sc->dev, addr, reg) & 0xffff);
1330 
1331 	if (e6000sw_smi_waitready(sc, sc->sw_addr)) {
1332 		printf("e6000sw: readreg timeout\n");
1333 		return (0xffff);
1334 	}
1335 	MDIO_WRITE(sc->dev, sc->sw_addr, SMI_CMD,
1336 	    SMI_CMD_OP_C22_READ | (reg & SMI_CMD_REG_ADDR_MASK) |
1337 	    ((addr << SMI_CMD_DEV_ADDR) & SMI_CMD_DEV_ADDR_MASK));
1338 	if (e6000sw_smi_waitready(sc, sc->sw_addr)) {
1339 		printf("e6000sw: readreg timeout\n");
1340 		return (0xffff);
1341 	}
1342 
1343 	return (MDIO_READ(sc->dev, sc->sw_addr, SMI_DATA) & 0xffff);
1344 }
1345 
1346 static __inline void
1347 e6000sw_writereg(e6000sw_softc_t *sc, int addr, int reg, int val)
1348 {
1349 
1350 	E6000SW_LOCK_ASSERT(sc, SA_XLOCKED);
1351 
1352 	if (!MVSWITCH_MULTICHIP(sc)) {
1353 		MDIO_WRITE(sc->dev, addr, reg, val);
1354 		return;
1355 	}
1356 
1357 	if (e6000sw_smi_waitready(sc, sc->sw_addr)) {
1358 		printf("e6000sw: readreg timeout\n");
1359 		return;
1360 	}
1361 	MDIO_WRITE(sc->dev, sc->sw_addr, SMI_DATA, val);
1362 	MDIO_WRITE(sc->dev, sc->sw_addr, SMI_CMD,
1363 	    SMI_CMD_OP_C22_WRITE | (reg & SMI_CMD_REG_ADDR_MASK) |
1364 	    ((addr << SMI_CMD_DEV_ADDR) & SMI_CMD_DEV_ADDR_MASK));
1365 }
1366 
1367 static __inline bool
1368 e6000sw_is_cpuport(e6000sw_softc_t *sc, int port)
1369 {
1370 
1371 	return ((sc->cpuports_mask & (1 << port)) ? true : false);
1372 }
1373 
1374 static __inline bool
1375 e6000sw_is_fixedport(e6000sw_softc_t *sc, int port)
1376 {
1377 
1378 	return ((sc->fixed_mask & (1 << port)) ? true : false);
1379 }
1380 
1381 static __inline bool
1382 e6000sw_is_fixed25port(e6000sw_softc_t *sc, int port)
1383 {
1384 
1385 	return ((sc->fixed25_mask & (1 << port)) ? true : false);
1386 }
1387 
1388 static __inline bool
1389 e6000sw_is_phyport(e6000sw_softc_t *sc, int port)
1390 {
1391 	uint32_t phy_mask;
1392 	phy_mask = ~(sc->fixed_mask | sc->cpuports_mask);
1393 
1394 	return ((phy_mask & (1 << port)) ? true : false);
1395 }
1396 
1397 static __inline bool
1398 e6000sw_is_portenabled(e6000sw_softc_t *sc, int port)
1399 {
1400 
1401 	return ((sc->ports_mask & (1 << port)) ? true : false);
1402 }
1403 
1404 static __inline void
1405 e6000sw_set_pvid(e6000sw_softc_t *sc, int port, int pvid)
1406 {
1407 	uint32_t reg;
1408 
1409 	reg = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_VID);
1410 	reg &= ~PORT_VID_DEF_VID_MASK;
1411 	reg |= (pvid & PORT_VID_DEF_VID_MASK);
1412 	e6000sw_writereg(sc, REG_PORT(sc, port), PORT_VID, reg);
1413 }
1414 
1415 static __inline int
1416 e6000sw_get_pvid(e6000sw_softc_t *sc, int port, int *pvid)
1417 {
1418 
1419 	if (pvid == NULL)
1420 		return (ENXIO);
1421 
1422 	*pvid = e6000sw_readreg(sc, REG_PORT(sc, port), PORT_VID) &
1423 	    PORT_VID_DEF_VID_MASK;
1424 
1425 	return (0);
1426 }
1427 
1428 /*
1429  * Convert port status to ifmedia.
1430  */
1431 static void
1432 e6000sw_update_ifmedia(uint16_t portstatus, u_int *media_status, u_int *media_active)
1433 {
1434 	*media_active = IFM_ETHER;
1435 	*media_status = IFM_AVALID;
1436 
1437 	if ((portstatus & PORT_STATUS_LINK_MASK) != 0)
1438 		*media_status |= IFM_ACTIVE;
1439 	else {
1440 		*media_active |= IFM_NONE;
1441 		return;
1442 	}
1443 
1444 	switch (portstatus & PORT_STATUS_SPEED_MASK) {
1445 	case PORT_STATUS_SPEED_10:
1446 		*media_active |= IFM_10_T;
1447 		break;
1448 	case PORT_STATUS_SPEED_100:
1449 		*media_active |= IFM_100_TX;
1450 		break;
1451 	case PORT_STATUS_SPEED_1000:
1452 		*media_active |= IFM_1000_T;
1453 		break;
1454 	}
1455 
1456 	if ((portstatus & PORT_STATUS_DUPLEX_MASK) == 0)
1457 		*media_active |= IFM_FDX;
1458 	else
1459 		*media_active |= IFM_HDX;
1460 }
1461 
1462 static void
1463 e6000sw_tick(void *arg)
1464 {
1465 	e6000sw_softc_t *sc;
1466 	struct mii_data *mii;
1467 	struct mii_softc *miisc;
1468 	uint16_t portstatus;
1469 	int port;
1470 
1471 	sc = arg;
1472 
1473 	E6000SW_LOCK_ASSERT(sc, SA_UNLOCKED);
1474 
1475 	for (;;) {
1476 		E6000SW_LOCK(sc);
1477 		for (port = 0; port < sc->num_ports; port++) {
1478 			/* Tick only on PHY ports */
1479 			if (!e6000sw_is_portenabled(sc, port) ||
1480 			    !e6000sw_is_phyport(sc, port))
1481 				continue;
1482 
1483 			mii = e6000sw_miiforphy(sc, port);
1484 			if (mii == NULL)
1485 				continue;
1486 
1487 			portstatus = e6000sw_readreg(sc, REG_PORT(sc, port),
1488 			    PORT_STATUS);
1489 
1490 			e6000sw_update_ifmedia(portstatus,
1491 			    &mii->mii_media_status, &mii->mii_media_active);
1492 
1493 			LIST_FOREACH(miisc, &mii->mii_phys, mii_list) {
1494 				if (IFM_INST(mii->mii_media.ifm_cur->ifm_media)
1495 				    != miisc->mii_inst)
1496 					continue;
1497 				mii_phy_update(miisc, MII_POLLSTAT);
1498 			}
1499 		}
1500 		E6000SW_UNLOCK(sc);
1501 		pause("e6000sw tick", 1000);
1502 	}
1503 }
1504 
1505 static void
1506 e6000sw_setup(device_t dev, e6000sw_softc_t *sc)
1507 {
1508 	uint32_t atu_ctrl;
1509 
1510 	/* Set aging time. */
1511 	atu_ctrl = e6000sw_readreg(sc, REG_GLOBAL, ATU_CONTROL);
1512 	atu_ctrl &= ~ATU_CONTROL_AGETIME_MASK;
1513 	atu_ctrl |= E6000SW_DEFAULT_AGETIME << ATU_CONTROL_AGETIME;
1514 	e6000sw_writereg(sc, REG_GLOBAL, ATU_CONTROL, atu_ctrl);
1515 
1516 	/* Send all with specific mac address to cpu port */
1517 	e6000sw_writereg(sc, REG_GLOBAL2, MGMT_EN_2x, MGMT_EN_ALL);
1518 	e6000sw_writereg(sc, REG_GLOBAL2, MGMT_EN_0x, MGMT_EN_ALL);
1519 
1520 	/* Disable Remote Management */
1521 	e6000sw_writereg(sc, REG_GLOBAL, SWITCH_GLOBAL_CONTROL2, 0);
1522 
1523 	/* Disable loopback filter and flow control messages */
1524 	e6000sw_writereg(sc, REG_GLOBAL2, SWITCH_MGMT,
1525 	    SWITCH_MGMT_PRI_MASK |
1526 	    (1 << SWITCH_MGMT_RSVD2CPU) |
1527 	    SWITCH_MGMT_FC_PRI_MASK |
1528 	    (1 << SWITCH_MGMT_FORCEFLOW));
1529 
1530 	e6000sw_atu_flush(dev, sc, NO_OPERATION);
1531 	e6000sw_atu_mac_table(dev, sc, NULL, NO_OPERATION);
1532 	e6000sw_set_atustat(dev, sc, 0, COUNT_ALL);
1533 }
1534 
1535 static void
1536 e6000sw_set_atustat(device_t dev, e6000sw_softc_t *sc, int bin, int flag)
1537 {
1538 	uint16_t ret;
1539 
1540 	ret = e6000sw_readreg(sc, REG_GLOBAL2, ATU_STATS);
1541 	e6000sw_writereg(sc, REG_GLOBAL2, ATU_STATS, (bin << ATU_STATS_BIN ) |
1542 	    (flag << ATU_STATS_FLAG));
1543 }
1544 
1545 static int
1546 e6000sw_atu_mac_table(device_t dev, e6000sw_softc_t *sc, struct atu_opt *atu,
1547     int flag)
1548 {
1549 	uint16_t ret_opt;
1550 	uint16_t ret_data;
1551 
1552 	if (flag == NO_OPERATION)
1553 		return (0);
1554 	else if ((flag & (LOAD_FROM_FIB | PURGE_FROM_FIB | GET_NEXT_IN_FIB |
1555 	    GET_VIOLATION_DATA | CLEAR_VIOLATION_DATA)) == 0) {
1556 		device_printf(dev, "Wrong Opcode for ATU operation\n");
1557 		return (EINVAL);
1558 	}
1559 
1560 	if (E6000SW_WAITREADY(sc, ATU_OPERATION, ATU_UNIT_BUSY)) {
1561 		device_printf(dev, "ATU unit is busy, cannot access\n");
1562 		return (EBUSY);
1563 	}
1564 
1565 	ret_opt = e6000sw_readreg(sc, REG_GLOBAL, ATU_OPERATION);
1566 	if (flag & LOAD_FROM_FIB) {
1567 		ret_data = e6000sw_readreg(sc, REG_GLOBAL, ATU_DATA);
1568 		e6000sw_writereg(sc, REG_GLOBAL2, ATU_DATA, (ret_data &
1569 		    ~ENTRY_STATE));
1570 	}
1571 	e6000sw_writereg(sc, REG_GLOBAL, ATU_MAC_ADDR01, atu->mac_01);
1572 	e6000sw_writereg(sc, REG_GLOBAL, ATU_MAC_ADDR23, atu->mac_23);
1573 	e6000sw_writereg(sc, REG_GLOBAL, ATU_MAC_ADDR45, atu->mac_45);
1574 	e6000sw_writereg(sc, REG_GLOBAL, ATU_FID, atu->fid);
1575 
1576 	e6000sw_writereg(sc, REG_GLOBAL, ATU_OPERATION,
1577 	    (ret_opt | ATU_UNIT_BUSY | flag));
1578 
1579 	if (E6000SW_WAITREADY(sc, ATU_OPERATION, ATU_UNIT_BUSY))
1580 		device_printf(dev, "Timeout while waiting ATU\n");
1581 	else if (flag & GET_NEXT_IN_FIB) {
1582 		atu->mac_01 = e6000sw_readreg(sc, REG_GLOBAL,
1583 		    ATU_MAC_ADDR01);
1584 		atu->mac_23 = e6000sw_readreg(sc, REG_GLOBAL,
1585 		    ATU_MAC_ADDR23);
1586 		atu->mac_45 = e6000sw_readreg(sc, REG_GLOBAL,
1587 		    ATU_MAC_ADDR45);
1588 	}
1589 
1590 	return (0);
1591 }
1592 
1593 static int
1594 e6000sw_atu_flush(device_t dev, e6000sw_softc_t *sc, int flag)
1595 {
1596 	uint32_t reg;
1597 
1598 	if (flag == NO_OPERATION)
1599 		return (0);
1600 
1601 	if (E6000SW_WAITREADY(sc, ATU_OPERATION, ATU_UNIT_BUSY)) {
1602 		device_printf(dev, "ATU unit is busy, cannot access\n");
1603 		return (EBUSY);
1604 	}
1605 	reg = e6000sw_readreg(sc, REG_GLOBAL, ATU_OPERATION);
1606 	e6000sw_writereg(sc, REG_GLOBAL, ATU_OPERATION,
1607 	    (reg | ATU_UNIT_BUSY | flag));
1608 	if (E6000SW_WAITREADY(sc, ATU_OPERATION, ATU_UNIT_BUSY))
1609 		device_printf(dev, "Timeout while flushing ATU\n");
1610 
1611 	return (0);
1612 }
1613 
1614 static int
1615 e6000sw_vtu_flush(e6000sw_softc_t *sc)
1616 {
1617 
1618 	if (E6000SW_WAITREADY(sc, VTU_OPERATION, VTU_BUSY)) {
1619 		device_printf(sc->dev, "VTU unit is busy, cannot access\n");
1620 		return (EBUSY);
1621 	}
1622 
1623 	e6000sw_writereg(sc, REG_GLOBAL, VTU_OPERATION, VTU_FLUSH | VTU_BUSY);
1624 	if (E6000SW_WAITREADY(sc, VTU_OPERATION, VTU_BUSY)) {
1625 		device_printf(sc->dev, "Timeout while flushing VTU\n");
1626 		return (ETIMEDOUT);
1627 	}
1628 
1629 	return (0);
1630 }
1631 
1632 static int
1633 e6000sw_vtu_update(e6000sw_softc_t *sc, int purge, int vid, int fid,
1634     int members, int untagged)
1635 {
1636 	int i, op;
1637 	uint32_t data[2];
1638 
1639 	if (E6000SW_WAITREADY(sc, VTU_OPERATION, VTU_BUSY)) {
1640 		device_printf(sc->dev, "VTU unit is busy, cannot access\n");
1641 		return (EBUSY);
1642 	}
1643 
1644 	*data = (vid & VTU_VID_MASK);
1645 	if (purge == 0)
1646 		*data |= VTU_VID_VALID;
1647 	e6000sw_writereg(sc, REG_GLOBAL, VTU_VID, *data);
1648 
1649 	if (purge == 0) {
1650 		data[0] = 0;
1651 		data[1] = 0;
1652 		for (i = 0; i < sc->num_ports; i++) {
1653 			if ((untagged & (1 << i)) != 0)
1654 				data[i / VTU_PPREG(sc)] |=
1655 				    VTU_PORT_UNTAGGED << VTU_PORT(sc, i);
1656 			else if ((members & (1 << i)) != 0)
1657 				data[i / VTU_PPREG(sc)] |=
1658 				    VTU_PORT_TAGGED << VTU_PORT(sc, i);
1659 			else
1660 				data[i / VTU_PPREG(sc)] |=
1661 				    VTU_PORT_DISCARD << VTU_PORT(sc, i);
1662 		}
1663 		e6000sw_writereg(sc, REG_GLOBAL, VTU_DATA, data[0]);
1664 		e6000sw_writereg(sc, REG_GLOBAL, VTU_DATA2, data[1]);
1665 		e6000sw_writereg(sc, REG_GLOBAL, VTU_FID,
1666 		    fid & VTU_FID_MASK(sc));
1667 		op = VTU_LOAD;
1668 	} else
1669 		op = VTU_PURGE;
1670 
1671 	e6000sw_writereg(sc, REG_GLOBAL, VTU_OPERATION, op | VTU_BUSY);
1672 	if (E6000SW_WAITREADY(sc, VTU_OPERATION, VTU_BUSY)) {
1673 		device_printf(sc->dev, "Timeout while flushing VTU\n");
1674 		return (ETIMEDOUT);
1675 	}
1676 
1677 	return (0);
1678 }
1679