3 * Fraunhofer Institute for Open Communication Systems (FhG Fokus).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * Author: Hartmut Brandt <harti@freebsd.org>
29 * Driver for IDT77252 based cards like ProSum's.
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
38 #include <sys/types.h>
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/malloc.h>
42 #include <sys/kernel.h>
44 #include <sys/errno.h>
46 #include <sys/module.h>
48 #include <sys/mutex.h>
49 #include <sys/sysctl.h>
50 #include <sys/queue.h>
51 #include <sys/condvar.h>
54 #include <sys/sockio.h>
56 #include <sys/socket.h>
59 #include <net/if_media.h>
60 #include <net/if_types.h>
61 #include <net/if_atm.h>
62 #include <net/route.h>
66 #include <netinet/in.h>
67 #include <netinet/if_atm.h>
69 #include <machine/bus.h>
70 #include <machine/resource.h>
73 #include <sys/mbpool.h>
74 #include <dev/pci/pcireg.h>
75 #include <dev/pci/pcivar.h>
77 #include <dev/utopia/utopia.h>
78 #include <dev/patm/idt77252reg.h>
79 #include <dev/patm/if_patmvar.h>
81 MODULE_DEPEND(patm, utopia, 1, 1, 1);
82 MODULE_DEPEND(patm, pci, 1, 1, 1);
83 MODULE_DEPEND(patm, atm, 1, 1, 1);
84 MODULE_DEPEND(patm, libmbpool, 1, 1, 1);
86 devclass_t patm_devclass;
88 static int patm_probe(device_t dev);
89 static int patm_attach(device_t dev);
90 static int patm_detach(device_t dev);
91 static device_method_t patm_methods[] = {
92 DEVMETHOD(device_probe, patm_probe),
93 DEVMETHOD(device_attach, patm_attach),
94 DEVMETHOD(device_detach, patm_detach),
97 static driver_t patm_driver = {
100 sizeof(struct patm_softc),
102 DRIVER_MODULE(patm, pci, patm_driver, patm_devclass, NULL, 0);
104 static const struct {
108 { PCI_DEVICE_IDT77252, "NICStAR (77222/77252) ATM adapter" },
109 { PCI_DEVICE_IDT77v252, "NICStAR (77v252) ATM adapter" },
110 { PCI_DEVICE_IDT77v222, "NICStAR (77v222) ATM adapter" },
114 SYSCTL_DECL(_hw_atm);
116 static int patm_phy_readregs(struct ifatm *, u_int, uint8_t *, u_int *);
117 static int patm_phy_writereg(struct ifatm *, u_int, u_int, u_int);
118 static const struct utopia_methods patm_utopia_methods = {
123 static void patm_destroy(struct patm_softc *sc);
125 static int patm_sysctl_istats(SYSCTL_HANDLER_ARGS);
126 static int patm_sysctl_eeprom(SYSCTL_HANDLER_ARGS);
128 static void patm_read_eeprom(struct patm_softc *sc);
129 static int patm_sq_init(struct patm_softc *sc);
130 static int patm_rbuf_init(struct patm_softc *sc);
131 static int patm_txmap_init(struct patm_softc *sc);
133 static void patm_env_getuint(struct patm_softc *, u_int *, const char *);
136 static int patm_sysctl_regs(SYSCTL_HANDLER_ARGS);
137 static int patm_sysctl_tsq(SYSCTL_HANDLER_ARGS);
138 int patm_dump_vc(u_int unit, u_int vc) __unused;
139 int patm_dump_regs(u_int unit) __unused;
140 int patm_dump_sram(u_int unit, u_int from, u_int words) __unused;
144 * Probe for a IDT77252 controller
147 patm_probe(device_t dev)
151 if (pci_get_vendor(dev) == PCI_VENDOR_IDT) {
152 for (i = 0; devs[i].desc != NULL; i++)
153 if (pci_get_device(dev) == devs[i].devid) {
154 device_set_desc(dev, devs[i].desc);
155 return (BUS_PROBE_DEFAULT);
165 patm_attach(device_t dev)
167 struct patm_softc *sc;
173 static const struct idt_mmap idt_mmap[4] = IDT_MMAP;
175 sc = device_get_softc(dev);
179 sc->debug = IATM_DEBUG;
181 ifp = sc->ifp = if_alloc(IFT_ATM);
186 IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_IDTABR25;
187 IFP2IFATM(sc->ifp)->mib.serial = 0;
188 IFP2IFATM(sc->ifp)->mib.hw_version = 0;
189 IFP2IFATM(sc->ifp)->mib.sw_version = 0;
190 IFP2IFATM(sc->ifp)->mib.vpi_bits = PATM_VPI_BITS;
191 IFP2IFATM(sc->ifp)->mib.vci_bits = 0; /* set below */;
192 IFP2IFATM(sc->ifp)->mib.max_vpcs = 0;
193 IFP2IFATM(sc->ifp)->mib.max_vccs = 0; /* set below */
194 IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_UNKNOWN;
195 IFP2IFATM(sc->ifp)->phy = &sc->utopia;
198 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
199 ifp->if_flags = IFF_SIMPLEX;
200 ifp->if_init = patm_init;
201 ifp->if_ioctl = patm_ioctl;
202 ifp->if_start = patm_start;
204 /* do this early so we can destroy unconditionally */
205 mtx_init(&sc->mtx, device_get_nameunit(dev),
206 MTX_NETWORK_LOCK, MTX_DEF);
207 mtx_init(&sc->tst_lock, "tst lock", NULL, MTX_DEF);
208 cv_init(&sc->vcc_cv, "vcc_close");
210 callout_init(&sc->tst_callout, CALLOUT_MPSAFE);
212 sysctl_ctx_init(&sc->sysctl_ctx);
217 sc->revision = pci_read_config(dev, PCIR_REVID, 4) & 0xf;
220 * Enable PCI bus master and memory
222 pci_enable_busmaster(dev);
224 rid = IDT_PCI_REG_MEMBASE;
225 sc->memres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
227 if (sc->memres == NULL) {
228 patm_printf(sc, "could not map memory\n");
232 sc->memh = rman_get_bushandle(sc->memres);
233 sc->memt = rman_get_bustag(sc->memres);
236 * Allocate the interrupt (enable it later)
239 sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid,
240 RF_SHAREABLE | RF_ACTIVE);
241 if (sc->irqres == 0) {
242 patm_printf(sc, "could not allocate irq\n");
248 * Construct the sysctl tree
251 if ((sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
252 SYSCTL_STATIC_CHILDREN(_hw_atm), OID_AUTO,
253 device_get_nameunit(dev), CTLFLAG_RD, 0, "")) == NULL)
256 if (SYSCTL_ADD_PROC(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
257 OID_AUTO, "istats", CTLFLAG_RD, sc, 0, patm_sysctl_istats,
258 "S", "internal statistics") == NULL)
261 if (SYSCTL_ADD_PROC(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
262 OID_AUTO, "eeprom", CTLFLAG_RD, sc, 0, patm_sysctl_eeprom,
263 "S", "EEPROM contents") == NULL)
266 if (SYSCTL_ADD_UINT(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
267 OID_AUTO, "lbuf_max", CTLFLAG_RD, &sc->lbuf_max,
268 0, "maximum number of large receive buffers") == NULL)
270 patm_env_getuint(sc, &sc->lbuf_max, "lbuf_max");
272 if (SYSCTL_ADD_UINT(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
273 OID_AUTO, "max_txmaps", CTLFLAG_RW, &sc->tx_maxmaps,
274 0, "maximum number of TX DMA maps") == NULL)
276 patm_env_getuint(sc, &sc->tx_maxmaps, "tx_maxmaps");
279 if (SYSCTL_ADD_UINT(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
280 OID_AUTO, "debug", CTLFLAG_RW, &sc->debug,
281 0, "debug flags") == NULL)
283 sc->debug = PATM_DEBUG;
284 patm_env_getuint(sc, &sc->debug, "debug");
286 if (SYSCTL_ADD_PROC(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
287 OID_AUTO, "regs", CTLFLAG_RD, sc, 0, patm_sysctl_regs,
288 "S", "registers") == NULL)
291 if (SYSCTL_ADD_PROC(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
292 OID_AUTO, "tsq", CTLFLAG_RD, sc, 0, patm_sysctl_tsq,
300 * Detect and attach the phy.
302 patm_debug(sc, ATTACH, "attaching utopia");
303 IFP2IFATM(sc->ifp)->phy = &sc->utopia;
304 utopia_attach(&sc->utopia, IFP2IFATM(sc->ifp), &sc->media, &sc->mtx,
305 &sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
306 &patm_utopia_methods);
309 * Start the PHY because we need the autodetection
311 patm_debug(sc, ATTACH, "starting utopia");
313 utopia_start(&sc->utopia);
314 utopia_reset(&sc->utopia);
315 mtx_unlock(&sc->mtx);
318 patm_read_eeprom(sc);
321 if (strncmp(sc->eeprom + PATM_PROATM_NAME_OFFSET, PATM_PROATM_NAME,
322 strlen(PATM_PROATM_NAME)) == 0) {
323 if (sc->utopia.chip->type == UTP_TYPE_IDT77105) {
324 IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_PROATM25;
325 IFP2IFATM(sc->ifp)->mib.pcr = ATM_RATE_25_6M;
326 IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_UTP_25;
327 sc->flags |= PATM_25M;
328 patm_printf(sc, "ProATM 25 interface; ");
331 /* cannot really know which media */
332 IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_PROATM155;
333 IFP2IFATM(sc->ifp)->mib.pcr = ATM_RATE_155M;
334 IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_MM_155;
335 patm_printf(sc, "ProATM 155 interface; ");
338 bcopy(sc->eeprom + PATM_PROATM_MAC_OFFSET, IFP2IFATM(sc->ifp)->mib.esi,
339 sizeof(IFP2IFATM(sc->ifp)->mib.esi));
342 if (sc->utopia.chip->type == UTP_TYPE_IDT77105) {
343 IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_IDTABR25;
344 IFP2IFATM(sc->ifp)->mib.pcr = ATM_RATE_25_6M;
345 IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_UTP_25;
346 sc->flags |= PATM_25M;
347 patm_printf(sc, "IDT77252 25MBit interface; ");
350 /* cannot really know which media */
351 IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_IDTABR155;
352 IFP2IFATM(sc->ifp)->mib.pcr = ATM_RATE_155M;
353 IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_MM_155;
354 patm_printf(sc, "IDT77252 155MBit interface; ");
357 bcopy(sc->eeprom + PATM_IDT_MAC_OFFSET, IFP2IFATM(sc->ifp)->mib.esi,
358 sizeof(IFP2IFATM(sc->ifp)->mib.esi));
360 printf("idt77252 Rev. %c; %s PHY\n", 'A' + sc->revision,
361 sc->utopia.chip->name);
363 utopia_reset_media(&sc->utopia);
364 utopia_init_media(&sc->utopia);
369 for (a = 0; a < 0x20000; a++)
370 patm_sram_write(sc, a, 0);
371 patm_sram_write(sc, 0, 0xdeadbeef);
372 if (patm_sram_read(sc, 0x4004) == 0xdeadbeef)
373 sc->mmap = &idt_mmap[0];
374 else if (patm_sram_read(sc, 0x8000) == 0xdeadbeef)
375 sc->mmap = &idt_mmap[1];
376 else if (patm_sram_read(sc, 0x20000) == 0xdeadbeef)
377 sc->mmap = &idt_mmap[2];
379 sc->mmap = &idt_mmap[3];
381 IFP2IFATM(sc->ifp)->mib.vci_bits = sc->mmap->vcbits - IFP2IFATM(sc->ifp)->mib.vpi_bits;
382 IFP2IFATM(sc->ifp)->mib.max_vccs = sc->mmap->max_conn;
383 patm_sram_write(sc, 0, 0);
384 patm_printf(sc, "%uK x 32 SRAM; %u connections\n", sc->mmap->sram,
387 /* initialize status queues */
388 error = patm_sq_init(sc);
393 sc->tst_soft = malloc(sizeof(uint32_t) * sc->mmap->tst_size,
396 /* allocate all the receive buffer stuff */
397 error = patm_rbuf_init(sc);
404 * Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
407 error = bus_dma_tag_create(NULL, PAGE_SIZE, 0,
408 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
409 NULL, NULL, sizeof(struct patm_scd), 1,
410 sizeof(struct patm_scd), 0, NULL, NULL, &sc->scd_tag);
412 patm_printf(sc, "SCD DMA tag create %d\n", error);
415 LIST_INIT(&sc->scd_list);
417 /* allocate VCC zone and pointers */
418 if ((sc->vcc_zone = uma_zcreate("PATM vccs", sizeof(struct patm_vcc),
419 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0)) == NULL) {
420 patm_printf(sc, "cannot allocate zone for vccs\n");
423 sc->vccs = malloc(sizeof(sc->vccs[0]) * sc->mmap->max_conn,
424 M_DEVBUF, M_WAITOK | M_ZERO);
426 /* allocate transmission resources */
427 error = patm_txmap_init(sc);
431 /* poll while we are not running */
432 sc->utopia.flags |= UTP_FL_POLL_CARRIER;
434 patm_debug(sc, ATTACH, "attaching interface");
438 bpfattach(ifp, DLT_ATM_RFC1483, sizeof(struct atmllc));
441 patm_debug(sc, ATTACH, "attaching interrupt handler");
442 error = bus_setup_intr(dev, sc->irqres, INTR_TYPE_NET | INTR_MPSAFE,
443 NULL, patm_intr, sc, &sc->ih);
445 patm_printf(sc, "could not setup interrupt\n");
446 atm_ifdetach(sc->ifp);
462 patm_detach(device_t dev)
464 struct patm_softc *sc;
466 sc = device_get_softc(dev);
470 if (sc->utopia.state & UTP_ST_ATTACHED) {
471 patm_debug(sc, ATTACH, "detaching utopia");
472 utopia_stop(&sc->utopia);
473 utopia_detach(&sc->utopia);
475 mtx_unlock(&sc->mtx);
477 atm_ifdetach(sc->ifp);
485 * Destroy everything. Assume we are stopped.
488 patm_destroy(struct patm_softc *sc)
491 struct patm_txmap *map;
494 bus_teardown_intr(sc->dev, sc->irqres, sc->ih);
496 if (sc->tx_mapzone != NULL) {
497 /* all maps must be free */
498 while ((map = SLIST_FIRST(&sc->tx_maps_free)) != NULL) {
499 bus_dmamap_destroy(sc->tx_tag, map->map);
500 SLIST_REMOVE_HEAD(&sc->tx_maps_free, link);
501 uma_zfree(sc->tx_mapzone, map);
503 uma_zdestroy(sc->tx_mapzone);
506 if (sc->scd_tag != NULL)
507 bus_dma_tag_destroy(sc->scd_tag);
509 if (sc->tx_tag != NULL)
510 bus_dma_tag_destroy(sc->scd_tag);
512 if (sc->vccs != NULL) {
513 for (i = 0; i < sc->mmap->max_conn; i++)
514 if (sc->vccs[i] != NULL)
515 uma_zfree(sc->vcc_zone, sc->vccs[i]);
516 free(sc->vccs, M_DEVBUF);
518 if (sc->vcc_zone != NULL)
519 uma_zdestroy(sc->vcc_zone);
521 if (sc->lbufs != NULL) {
522 for (i = 0; i < sc->lbuf_max; i++)
523 bus_dmamap_destroy(sc->lbuf_tag, sc->lbufs[i].map);
524 free(sc->lbufs, M_DEVBUF);
527 if (sc->lbuf_tag != NULL)
528 bus_dma_tag_destroy(sc->lbuf_tag);
530 if (sc->sbuf_pool != NULL)
531 mbp_destroy(sc->sbuf_pool);
532 if (sc->vbuf_pool != NULL)
533 mbp_destroy(sc->vbuf_pool);
535 if (sc->sbuf_tag != NULL)
536 bus_dma_tag_destroy(sc->sbuf_tag);
538 if (sc->tst_soft != NULL)
539 free(sc->tst_soft, M_DEVBUF);
542 * Free all status queue memory resources
544 if (sc->tsq != NULL) {
545 bus_dmamap_unload(sc->sq_tag, sc->sq_map);
546 bus_dmamem_free(sc->sq_tag, sc->tsq, sc->sq_map);
547 bus_dma_tag_destroy(sc->sq_tag);
550 if (sc->irqres != NULL)
551 bus_release_resource(sc->dev, SYS_RES_IRQ,
552 sc->irqid, sc->irqres);
553 if (sc->memres != NULL)
554 bus_release_resource(sc->dev, SYS_RES_MEMORY,
555 IDT_PCI_REG_MEMBASE, sc->memres);
557 /* this was initialize unconditionally */
558 sysctl_ctx_free(&sc->sysctl_ctx);
559 cv_destroy(&sc->vcc_cv);
560 mtx_destroy(&sc->tst_lock);
561 mtx_destroy(&sc->mtx);
568 * Try to find a variable in the environment and parse it as an unsigned
572 patm_env_getuint(struct patm_softc *sc, u_int *var, const char *name)
574 char full[IFNAMSIZ + 3 + 20];
578 snprintf(full, sizeof(full), "hw.%s.%s",
579 device_get_nameunit(sc->dev), name);
581 if ((val = getenv(full)) != NULL) {
582 u = strtoul(val, &end, 0);
583 if (end > val && *end == '\0') {
585 patm_printf(sc, "%s=%lu\n", full, u);
593 * Sysctl handler for internal statistics
595 * LOCK: unlocked, needed
598 patm_sysctl_istats(SYSCTL_HANDLER_ARGS)
600 struct patm_softc *sc = arg1;
604 ret = malloc(sizeof(sc->stats), M_TEMP, M_WAITOK);
607 bcopy(&sc->stats, ret, sizeof(sc->stats));
608 mtx_unlock(&sc->mtx);
610 error = SYSCTL_OUT(req, ret, sizeof(sc->stats));
617 * Sysctl handler for EEPROM
619 * LOCK: unlocked, needed
622 patm_sysctl_eeprom(SYSCTL_HANDLER_ARGS)
624 struct patm_softc *sc = arg1;
628 ret = malloc(sizeof(sc->eeprom), M_TEMP, M_WAITOK);
631 bcopy(sc->eeprom, ret, sizeof(sc->eeprom));
632 mtx_unlock(&sc->mtx);
634 error = SYSCTL_OUT(req, ret, sizeof(sc->eeprom));
641 * Read the EEPROM. We assume that this is a XIRCOM 25020
644 patm_read_eeprom(struct patm_softc *sc)
650 static const uint32_t tab[] = {
651 /* CS transition to reset the chip */
652 IDT_GP_EECS | IDT_GP_EESCLK, 0,
653 /* read command 0x03 */
659 IDT_GP_EESCLK, IDT_GP_EEDO,
660 IDT_GP_EESCLK | IDT_GP_EEDO, IDT_GP_EEDO,
661 IDT_GP_EESCLK | IDT_GP_EEDO, 0,
673 /* go to a known state (chip enabled) */
674 gp = patm_nor_read(sc, IDT_NOR_GP);
675 gp &= ~(IDT_GP_EESCLK | IDT_GP_EECS | IDT_GP_EEDO);
677 for (i = 0; i < sizeof(tab) / sizeof(tab[0]); i++) {
678 patm_nor_write(sc, IDT_NOR_GP, gp | tab[i]);
682 /* read out the prom */
683 for (addr = 0; addr < 256; addr++) {
685 for (i = 0; i < 8; i++) {
687 if (patm_nor_read(sc, IDT_NOR_GP) & IDT_GP_EEDI)
690 patm_nor_write(sc, IDT_NOR_GP, gp | IDT_GP_EESCLK);
693 patm_nor_write(sc, IDT_NOR_GP, gp);
696 sc->eeprom[addr] = byte;
704 patm_phy_readregs(struct ifatm *ifatm, u_int reg, uint8_t *val, u_int *n)
706 struct patm_softc *sc = ifatm->ifp->if_softc;
713 while (reg < 0x100 && cnt > 0) {
714 patm_nor_write(sc, IDT_NOR_CMD, IDT_MKCMD_RUTIL(1, 0, reg));
716 *val = patm_nor_read(sc, IDT_NOR_D0);
717 patm_debug(sc, PHY, "phy(%02x)=%02x", reg, *val);
730 patm_phy_writereg(struct ifatm *ifatm, u_int reg, u_int mask, u_int val)
732 struct patm_softc *sc = ifatm->ifp->if_softc;
739 patm_nor_write(sc, IDT_NOR_CMD, IDT_MKCMD_RUTIL(1, 0, reg));
742 old = patm_nor_read(sc, IDT_NOR_D0);
743 new = (old & ~mask) | (val & mask);
744 patm_debug(sc, PHY, "phy(%02x) %02x -> %02x", reg, old, new);
746 patm_nor_write(sc, IDT_NOR_D0, new);
747 patm_nor_write(sc, IDT_NOR_CMD, IDT_MKCMD_WUTIL(1, 0, reg));
754 * Allocate a large chunk of DMA able memory for the transmit
755 * and receive status queues. We align this to a page boundary
756 * to ensure the alignment.
759 patm_sq_init(struct patm_softc *sc)
764 /* compute size of the two queues */
765 sc->sq_size = IDT_TSQ_SIZE * IDT_TSQE_SIZE +
766 PATM_RSQ_SIZE * IDT_RSQE_SIZE +
769 patm_debug(sc, ATTACH,
770 "allocating status queues (%zu) ...", sc->sq_size);
774 * Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
777 error = bus_dma_tag_create(NULL, PATM_SQ_ALIGNMENT, 0,
778 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
779 NULL, NULL, sc->sq_size, 1, sc->sq_size,
780 0, NULL, NULL, &sc->sq_tag);
782 patm_printf(sc, "memory DMA tag create %d\n", error);
786 /* allocate memory */
787 error = bus_dmamem_alloc(sc->sq_tag, &p, 0, &sc->sq_map);
789 patm_printf(sc, "memory DMA alloc %d\n", error);
790 bus_dma_tag_destroy(sc->sq_tag);
795 sc->tsq_phy = 0x1fff;
796 error = bus_dmamap_load(sc->sq_tag, sc->sq_map, p,
797 sc->sq_size, patm_load_callback, &sc->tsq_phy, BUS_DMA_NOWAIT);
799 patm_printf(sc, "memory DMA map load %d\n", error);
800 bus_dmamem_free(sc->sq_tag, p, sc->sq_map);
801 bus_dma_tag_destroy(sc->sq_tag);
805 /* set queue start */
807 sc->rsq = (void *)((char *)p + IDT_TSQ_SIZE * IDT_TSQE_SIZE);
808 sc->rsq_phy = sc->tsq_phy + IDT_TSQ_SIZE * IDT_TSQE_SIZE;
809 sc->rawhnd = (void *)((char *)sc->rsq + PATM_RSQ_SIZE * IDT_RSQE_SIZE);
810 sc->rawhnd_phy = sc->rsq_phy + PATM_RSQ_SIZE * IDT_RSQE_SIZE;
816 * Initialize all receive buffer stuff
819 patm_rbuf_init(struct patm_softc *sc)
824 patm_debug(sc, ATTACH, "allocating Rx buffer resources ...");
826 * Create a tag for small buffers. We allocate these page wise.
827 * Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
830 if ((error = bus_dma_tag_create(NULL, PAGE_SIZE, 0,
831 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
832 SMBUF_PAGE_SIZE, 1, SMBUF_PAGE_SIZE, 0,
833 NULL, NULL, &sc->sbuf_tag)) != 0) {
834 patm_printf(sc, "sbuf DMA tag create %d\n", error);
838 error = mbp_create(&sc->sbuf_pool, "patm sbufs", sc->sbuf_tag,
839 SMBUF_MAX_PAGES, SMBUF_PAGE_SIZE, SMBUF_CHUNK_SIZE);
841 patm_printf(sc, "smbuf pool create %d\n", error);
845 error = mbp_create(&sc->vbuf_pool, "patm vbufs", sc->sbuf_tag,
846 VMBUF_MAX_PAGES, SMBUF_PAGE_SIZE, VMBUF_CHUNK_SIZE);
848 patm_printf(sc, "vmbuf pool create %d\n", error);
853 * Create a tag for large buffers.
854 * Don't use BUS_DMA_ALLOCNOW, because it makes no sense with multiple
855 * maps using one tag. Rather use BUS_DMA_NOWAIT when loading the map
856 * to prevent EINPROGRESS.
858 if ((error = bus_dma_tag_create(NULL, 4, 0,
859 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
860 MCLBYTES, 1, MCLBYTES, 0,
861 NULL, NULL, &sc->lbuf_tag)) != 0) {
862 patm_printf(sc, "lbuf DMA tag create %d\n", error);
866 if (sc->lbuf_max < IDT_FBQ_SIZE)
867 sc->lbuf_max = LMBUF_MAX;
868 sc->lbufs = malloc(sizeof(sc->lbufs[0]) * sc->lbuf_max,
869 M_DEVBUF, M_ZERO | M_WAITOK);
871 SLIST_INIT(&sc->lbuf_free_list);
872 for (i = 0; i < sc->lbuf_max; i++) {
873 struct lmbuf *b = &sc->lbufs[i];
875 error = bus_dmamap_create(sc->lbuf_tag, 0, &b->map);
877 /* must deallocate here, because a test for NULL
878 * does not work on most archs */
880 bus_dmamap_destroy(sc->lbuf_tag,
882 free(sc->lbufs, M_DEVBUF);
887 SLIST_INSERT_HEAD(&sc->lbuf_free_list, b, link);
894 * Allocate everything needed for the transmission maps.
897 patm_txmap_init(struct patm_softc *sc)
900 struct patm_txmap *map;
902 /* get transmission tag */
903 error = bus_dma_tag_create(NULL, 1, 0,
904 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
905 NULL, NULL, 65536, IDT_SCQ_SIZE - 1, 65536,
906 0, NULL, NULL, &sc->tx_tag);
908 patm_printf(sc, "cannot allocate TX tag %d\n", error);
912 if ((sc->tx_mapzone = uma_zcreate("PATM tx maps",
913 sizeof(struct patm_txmap), NULL, NULL, NULL, NULL,
914 UMA_ALIGN_PTR, 0)) == NULL)
917 if (sc->tx_maxmaps < PATM_CFG_TXMAPS_MAX)
918 sc->tx_maxmaps = PATM_CFG_TXMAPS_MAX;
919 sc->tx_nmaps = PATM_CFG_TXMAPS_INIT;
921 for (sc->tx_nmaps = 0; sc->tx_nmaps < PATM_CFG_TXMAPS_INIT;
923 map = uma_zalloc(sc->tx_mapzone, M_WAITOK);
924 error = bus_dmamap_create(sc->tx_tag, 0, &map->map);
926 uma_zfree(sc->tx_mapzone, map);
929 SLIST_INSERT_HEAD(&sc->tx_maps_free, map, link);
938 * Sysctl handler for REGS
940 * LOCK: unlocked, needed
943 patm_sysctl_regs(SYSCTL_HANDLER_ARGS)
945 struct patm_softc *sc = arg1;
949 ret = malloc(IDT_NOR_END, M_TEMP, M_WAITOK);
952 for (i = 0; i < IDT_NOR_END; i += 4)
953 ret[i / 4] = patm_nor_read(sc, i);
954 mtx_unlock(&sc->mtx);
956 error = SYSCTL_OUT(req, ret, IDT_NOR_END);
963 * Sysctl handler for TSQ
965 * LOCK: unlocked, needed
968 patm_sysctl_tsq(SYSCTL_HANDLER_ARGS)
970 struct patm_softc *sc = arg1;
974 ret = malloc(IDT_TSQ_SIZE * IDT_TSQE_SIZE, M_TEMP, M_WAITOK);
977 memcpy(ret, sc->tsq, IDT_TSQ_SIZE * IDT_TSQE_SIZE);
978 mtx_unlock(&sc->mtx);
980 error = SYSCTL_OUT(req, ret, IDT_TSQ_SIZE * IDT_TSQE_SIZE);
989 static struct patm_softc *
990 patm_dump_unit(u_int unit)
993 struct patm_softc *sc;
995 dc = devclass_find("patm");
997 printf("%s: can't find devclass\n", __func__);
1000 sc = devclass_get_softc(dc, unit);
1002 printf("%s: invalid unit number: %d\n", __func__, unit);
1009 patm_dump_vc(u_int unit, u_int vc)
1011 struct patm_softc *sc;
1017 if ((sc = patm_dump_unit(unit)) == NULL)
1020 for (i = 0; i < 8; i++)
1021 tct[i] = patm_sram_read(sc, vc * 8 + i);
1022 for (i = 0; i < 4; i++)
1023 rct[i] = patm_sram_read(sc, sc->mmap->rct + vc * 4 + i);
1024 for (i = 0; i < 12; i++)
1025 scd[i] = patm_sram_read(sc, (tct[0] & 0x7ffff) + i);
1027 printf("TCT%3u: %08x %08x %08x %08x %08x %08x %08x %08x\n", vc,
1028 tct[0], tct[1], tct[2], tct[3], tct[4], tct[5], tct[6], tct[7]);
1029 printf("RCT%3u: %08x %08x %08x %08x\n", vc,
1030 rct[0], rct[1], rct[2], rct[3]);
1031 printf("SCD%3u: %08x %08x %08x %08x %08x %08x %08x %08x\n", vc,
1032 scd[0], scd[1], scd[2], scd[3], scd[4], scd[5], scd[6], scd[7]);
1033 printf(" %08x %08x %08x %08x\n",
1034 scd[8], scd[9], scd[10], scd[11]);
1040 patm_dump_regs(u_int unit)
1042 struct patm_softc *sc;
1045 if ((sc = patm_dump_unit(unit)) == NULL)
1048 for (i = 0; i <= IDT_NOR_DNOW; i += 4)
1049 printf("%x: %08x\n", i, patm_nor_read(sc, i));
1055 patm_dump_sram(u_int unit, u_int from, u_int words)
1057 struct patm_softc *sc;
1060 if ((sc = patm_dump_unit(unit)) == NULL)
1063 for (i = 0; i < words; i++) {
1065 printf("%05x:", from + i);
1066 printf(" %08x", patm_sram_read(sc, from + i));