2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
14 * 3. Neither the name of The DragonFly Project nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific, prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
28 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * $FreeBSD-4.7: /usr/src/sys/pci/silan.c,v 1.0 2003/01/10 gaoyonghong $
32 * $DragonFly: src/sys/dev/netif/sln/if_sln.c,v 1.3 2008/06/29 20:45:44 swildner Exp $
35 #include <sys/param.h>
37 #include <sys/endian.h>
38 #include <sys/kernel.h>
39 #include <sys/interrupt.h>
40 #include <sys/malloc.h>
42 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <sys/sockio.h>
46 #include <sys/systm.h>
48 #include <bus/pci/pcidevs.h>
49 #include <bus/pci/pcireg.h>
50 #include <bus/pci/pcivar.h>
52 #include <machine/clock.h>
55 #include <net/ethernet.h>
56 #include <net/ifq_var.h>
58 #include <net/if_arp.h>
59 #include <net/if_dl.h>
60 #include <net/if_media.h>
61 #include <net/if_var.h>
66 #include "if_slnreg.h"
67 #include "if_slnvar.h"
69 /* Default to using PIO access for netcard driver */
73 #define PDEBUG(fmt, args...) kprintf("%s: " fmt "\n" , __func__ , ## args)
75 #define PDEBUG(fmt, args...)
78 static const struct sln_dev {
83 {PCI_VENDOR_SILAN, PCI_PRODUCT_SILAN_SC92031,
84 "Silan SC92031 Fast Ethernet" },
85 {PCI_VENDOR_SILAN, PCI_PRODUCT_SILAN_8139D,
86 "Silan Rsltek 8139D Fast Ethernet" },
90 static int sln_probe(device_t);
91 static int sln_attach(device_t);
92 static int sln_detach(device_t);
93 static int sln_shutdown(device_t);
94 static int sln_suspend(device_t);
95 static int sln_resume(device_t);
97 static void sln_reset(struct sln_softc *);
98 static void sln_init(void *);
100 static void sln_tx(struct ifnet *);
101 static void sln_rx(struct sln_softc *);
102 static void sln_tx_intr(struct sln_softc *);
103 static void sln_media_intr(struct sln_softc *);
104 static void sln_interrupt(void *);
105 static int sln_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
106 static void sln_stop(struct sln_softc *);
107 static void sln_watchdog(struct ifnet *);
109 static int sln_media_upd(struct ifnet *);
111 static void sln_media_stat(struct ifnet *, struct ifmediareq *);
112 static void sln_mii_cmd(struct sln_softc *, uint32_t, u_long *);
113 static void sln_media_cfg(struct sln_softc *);
114 static void sln_mac_cfg(struct sln_softc *);
115 static uint32_t sln_ether_crc32(caddr_t);
116 static void sln_set_multi(struct sln_softc *);
117 static void sln_init_tx(struct sln_softc *);
118 static void sln_tick(void *);
121 #define SL_RID SL_PCI_IOAD
122 #define SL_RES SYS_RES_IOPORT
124 #define SL_RID SL_PCI_MEMAD
125 #define SL_RES SYS_RES_MEMORY
128 static device_method_t sln_methods[] = {
129 DEVMETHOD(device_probe, sln_probe),
130 DEVMETHOD(device_attach, sln_attach),
131 DEVMETHOD(device_detach, sln_detach),
132 DEVMETHOD(device_shutdown, sln_shutdown),
133 DEVMETHOD(device_suspend, sln_suspend),
134 DEVMETHOD(device_resume, sln_resume),
136 DEVMETHOD(bus_print_child, bus_generic_print_child),
137 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
142 static driver_t sln_driver = {
145 sizeof(struct sln_softc)
148 static devclass_t sln_devclass;
150 DRIVER_MODULE(sln, pci, sln_driver, sln_devclass, 0, 0);
153 sln_probe(struct device *dev)
155 const struct sln_dev *d;
158 vid = pci_get_vendor(dev);
159 did = pci_get_device(dev);
161 for (d = sln_devs; d->desc != NULL; d++) {
162 if (vid == d->vid && did == d->did) {
163 device_set_desc(dev, d->desc);
172 sln_reset(struct sln_softc *sc)
174 SLN_WRITE_4(sc, SL_CFG0, SL_SOFT_RESET);
176 SLN_WRITE_4(sc, SL_CFG0, 0x0);
180 /* Attach the interface. Allocate softc structures */
182 sln_attach(device_t dev)
184 struct sln_softc *sc = device_get_softc(dev);
185 struct ifnet *ifp = &sc->arpcom.ac_if;
186 unsigned char eaddr[ETHER_ADDR_LEN];
190 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
192 /* TODO: power state change */
194 pci_enable_busmaster(dev);
197 sc->sln_res = bus_alloc_resource_any(dev, SL_RES, &rid, RF_ACTIVE);
198 if (sc->sln_res == NULL) {
199 device_printf(dev, "couldn't map ports/memory\n");
203 sc->sln_bustag = rman_get_bustag(sc->sln_res);
204 sc->sln_bushandle = rman_get_bushandle(sc->sln_res);
208 sc->sln_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
209 RF_SHAREABLE | RF_ACTIVE);
210 if (sc->sln_irq == NULL) {
211 device_printf(dev, "couldn't map interrupt\n");
212 bus_release_resource(dev, SL_RES, SL_RID, sc->sln_res);
217 /* Get MAC address */
218 ((uint32_t *)(&eaddr))[0] = be32toh(SLN_READ_4(sc, SL_MAC_ADDR0));
219 ((uint16_t *)(&eaddr))[2] = be16toh(SLN_READ_4(sc, SL_MAC_ADDR1));
221 /* alloc rx buffer space */
222 sc->sln_bufdata.sln_rx_buf = contigmalloc(SL_RX_BUFLEN,
223 M_DEVBUF, M_WAITOK, 0, 0xffffffff, PAGE_SIZE, 0);
224 if (sc->sln_bufdata.sln_rx_buf == NULL) {
225 device_printf(dev, "no memory for rx buffers!\n");
226 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sln_irq);
227 bus_release_resource(dev, SL_RES, SL_RID, sc->sln_res);
231 callout_init(&sc->sln_state);
234 ifp->if_mtu = ETHERMTU;
235 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
236 ifp->if_init = sln_init;
237 ifp->if_start = sln_tx;
238 ifp->if_ioctl = sln_ioctl;
239 ifp->if_watchdog = sln_watchdog;
240 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
241 ifq_set_ready(&ifp->if_snd);
244 ifmedia_init(&sc->ifmedia, 0, sln_media_upd, sln_media_stat);
246 /* supported media types */
247 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL);
248 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T, 0, NULL);
249 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX, 0, NULL);
250 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX, 0, NULL);
251 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL);
252 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX, 0, NULL);
253 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, NULL);
255 /* Choose a default media. */
256 ifmedia_set(&sc->ifmedia, IFM_ETHER | IFM_AUTO);
258 ether_ifattach(ifp, eaddr, NULL);
260 error = bus_setup_intr(dev, sc->sln_irq, INTR_MPSAFE, sln_interrupt, sc,
261 &sc->sln_intrhand, ifp->if_serializer);
263 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sln_irq);
264 bus_release_resource(dev, SL_RES, SL_RID, sc->sln_res);
266 device_printf(dev, "couldn't set up irq\n");
270 ifp->if_cpuid = ithread_cpuid(rman_get_start(sc->sln_irq));
271 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
278 /* Stop the adapter and free any mbufs allocated to the RX and TX buffers */
280 sln_stop(struct sln_softc *sc)
282 struct ifnet *ifp = &sc->arpcom.ac_if;
283 uint32_t intr_status;
286 ASSERT_SERIALIZED(ifp->if_serializer);
289 callout_stop(&sc->sln_state);
292 sc->txcfg &= ~SL_TXCFG_EN;
293 sc->rxcfg &= ~SL_RXCFG_EN;
294 SLN_WRITE_4(sc, SL_TX_CONFIG, sc->txcfg);
295 SLN_WRITE_4(sc, SL_RX_CONFIG, sc->rxcfg);
297 /* Clear interrupt */
298 SLN_WRITE_4(sc, SL_INT_MASK, 0);
299 intr_status = SLN_READ_4(sc, SL_INT_STATUS);
301 /* Free the TX list buffers */
302 for (i = 0; i < SL_TXD_CNT; i++) {
303 if (sc->sln_bufdata.sln_tx_buf[i] != NULL) {
304 m_freem(sc->sln_bufdata.sln_tx_buf[i]);
305 sc->sln_bufdata.sln_tx_buf[i] = NULL;
306 SLN_WRITE_4(sc, SL_TSAD0 + i * 4, 0);
310 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
314 sln_detach(device_t dev)
316 struct sln_softc *sc = device_get_softc(dev);
317 struct ifnet *ifp = &sc->arpcom.ac_if;
319 lwkt_serialize_enter(ifp->if_serializer);
321 bus_teardown_intr(dev, sc->sln_irq, sc->sln_intrhand);
322 lwkt_serialize_exit(ifp->if_serializer);
326 bus_generic_detach(dev);
328 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sln_irq);
329 bus_release_resource(dev, SL_RES, SL_RID, sc->sln_res);
331 contigfree(sc->sln_bufdata.sln_rx_buf, SL_RX_BUFLEN, M_DEVBUF);
337 sln_media_upd(struct ifnet *ifp)
339 struct sln_softc *sc = ifp->if_softc;
340 struct ifmedia *ifm = &sc->ifmedia;
342 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
345 if (ifp->if_flags & IFF_UP)
352 sln_media_stat(struct ifnet *ifp, struct ifmediareq *ifmr)
354 struct sln_softc *sc = ifp->if_softc;
358 ifmr->ifm_status = IFM_AVALID;
359 ifmr->ifm_active = IFM_ETHER;
361 phys[0] = SL_MII_STAT;
362 sln_mii_cmd(sc, SL_MII0_READ, phys);
364 if (phys[1] & SL_MIISTAT_LINK)
365 ifmr->ifm_status |= IFM_ACTIVE;
367 temp = SLN_READ_4(sc, SL_PHY_CTRL);
369 if ((temp & (SL_PHYCTL_DUX | SL_PHYCTL_SPD100 | SL_PHYCTL_SPD10)) == 0x60800000)
370 ifmr->ifm_active |= IFM_AUTO;
371 else if ((temp & (SL_PHYCTL_DUX | SL_PHYCTL_SPD100)) == 0x40800000)
372 ifmr->ifm_active |= IFM_100_TX | IFM_FDX;
373 else if ((temp & SL_PHYCTL_SPD100) == 0x40000000)
374 ifmr->ifm_active |= IFM_100_TX | IFM_HDX;
375 else if ((temp & (SL_PHYCTL_DUX | SL_PHYCTL_SPD10)) == 0x20800000)
376 ifmr->ifm_active |= IFM_10_T | IFM_FDX;
377 else if ((temp & SL_PHYCTL_SPD10) == 0x20000000)
378 ifmr->ifm_active |= IFM_10_T | IFM_HDX;
380 sln_mii_cmd(sc, SL_MII0_SCAN, phys);
383 /* command selected in MII command register */
385 sln_mii_cmd(struct sln_softc *sc, uint32_t cmd, u_long *phys)
389 SLN_WRITE_4(sc, SL_MII_CMD0, SL_MII0_DIVEDER);
394 mii_status = SLN_READ_4(sc, SL_MII_STATUS);
395 } while (mii_status & SL_MIISTAT_BUSY);
399 SLN_WRITE_4(sc, SL_MII_CMD1, 0x1 << 6);
400 SLN_WRITE_4(sc, SL_MII_CMD0, SL_MII0_DIVEDER | SL_MII0_SCAN);
404 SLN_WRITE_4(sc, SL_MII_CMD1, phys[0] << 6);
405 SLN_WRITE_4(sc, SL_MII_CMD0, SL_MII0_DIVEDER | SL_MII0_READ);
409 SLN_WRITE_4(sc, SL_MII_CMD1, phys[0] << 6 | phys[1] << 11);
410 SLN_WRITE_4(sc, SL_MII_CMD0, SL_MII0_DIVEDER | SL_MII0_WRITE);
416 mii_status = SLN_READ_4(sc, SL_MII_STATUS);
417 } while (mii_status & SL_MIISTAT_BUSY);
419 if (SL_MII0_READ == cmd)
420 phys[1] = (mii_status >> 13) & 0xffff;
423 /* Set media speed and duplex mode */
425 sln_media_cfg(struct sln_softc *sc)
431 mediatype = (&sc->ifmedia)->ifm_cur->ifm_media;
433 temp = SLN_READ_4(sc, SL_PHY_CTRL);
434 temp &= ~(SL_PHYCTL_DUX | SL_PHYCTL_SPD100 | SL_PHYCTL_SPD10);
435 temp |= (SL_PHYCTL_ANE | SL_PHYCTL_RESET);
437 /************************************************/
438 /* currently set media word by selected media */
440 /* IFM_ETHER = 0x00000020 */
441 /* IFM_AUTO=0, IFM_10_T=3, IFM_100_TX=6 */
442 /* IFM_FDX=0x00100000 IFM_HDX=0x00200000 */
443 /************************************************/
446 PDEBUG(" autoselet supported\n");
447 temp |= (SL_PHYCTL_DUX | SL_PHYCTL_SPD100 | SL_PHYCTL_SPD10);
448 sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO;
449 ifmedia_set(&sc->ifmedia, IFM_ETHER | IFM_AUTO);
453 PDEBUG(" 10Mbps half_duplex supported\n");
454 temp |= SL_PHYCTL_SPD10;
455 sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX;
456 ifmedia_set(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX);
460 PDEBUG("10Mbps full_duplex supported\n");
461 temp |= (SL_PHYCTL_SPD10 | SL_PHYCTL_DUX);
462 sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX;
463 ifmedia_set(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX);
468 PDEBUG("100Mbps half_duplex supported\n");
469 temp |= SL_PHYCTL_SPD100;
470 sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX;
471 ifmedia_set(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX);
475 PDEBUG("100Mbps full_duplex supported\n");
476 temp |= (SL_PHYCTL_SPD100 | SL_PHYCTL_DUX);
477 sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX;
478 ifmedia_set(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX);
485 SLN_WRITE_4(sc, SL_PHY_CTRL, temp);
488 temp &= ~SL_PHYCTL_RESET;
489 SLN_WRITE_4(sc, SL_PHY_CTRL, temp);
492 phys[0] = SL_MII_JAB;
493 phys[1] = SL_PHY_16_JAB_ENB | SL_PHY_16_PORT_ENB;
494 sln_mii_cmd(sc, SL_MII0_WRITE, phys);
497 sln_mii_cmd(sc, SL_MII0_SCAN, phys);
501 sln_mac_cfg(struct sln_softc *sc)
503 struct ifnet *ifp = &sc->arpcom.ac_if;
506 /* Set the initial TX/RX/Flow Control configuration */
507 sc->rxcfg = SL_RXCFG_LOW_THRESHOLD | SL_RXCFG_HIGH_THRESHOLD;
508 sc->txcfg = TX_CFG_DEFAULT;
511 sc->txcfg |= 0x20000000;
513 if (sc->media_speed == IFM_10_T)
514 sc->txcfg |= SL_TXCFG_DATARATE;
516 if (sc->media_duplex == IFM_FDX) {
517 sc->rxcfg |= SL_RXCFG_FULLDX;
518 sc->txcfg |= SL_TXCFG_FULLDX;
519 flowcfg = SL_FLOWCTL_FULLDX | SL_FLOWCTL_EN;
521 sc->rxcfg &= ~SL_RXCFG_FULLDX;
522 sc->txcfg &= ~SL_TXCFG_FULLDX;
525 /* if promiscuous mode, set the allframes bit. */
526 if (ifp->if_flags & IFF_PROMISC)
527 sc->rxcfg |= (SL_RXCFG_EN | SL_RXCFG_RCV_SMALL | SL_RXCFG_RCV_HUGE | SL_RXCFG_RCV_ERR | SL_RXCFG_RCV_BROAD | SL_RXCFG_RCV_MULTI | SL_RXCFG_RCV_ALL);
529 sc->rxcfg &= ~(SL_RXCFG_EN | SL_RXCFG_RCV_SMALL | SL_RXCFG_RCV_HUGE | SL_RXCFG_RCV_ERR | SL_RXCFG_RCV_BROAD | SL_RXCFG_RCV_MULTI | SL_RXCFG_RCV_ALL);
531 /* Set capture broadcast bit to capture broadcast frames */
532 if (ifp->if_flags & IFF_BROADCAST)
533 sc->rxcfg |= SL_RXCFG_EN | SL_RXCFG_RCV_BROAD;
535 sc->rxcfg &= ~(SL_RXCFG_EN | SL_RXCFG_RCV_BROAD);
537 /* Program the multicast filter, if necessary */
540 SLN_WRITE_4(sc, SL_RX_CONFIG, sc->rxcfg);
541 SLN_WRITE_4(sc, SL_TX_CONFIG, sc->txcfg);
542 SLN_WRITE_4(sc, SL_FLOW_CTRL, flowcfg);
545 static u_char shade_map[] = { 0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6, 0xe,
546 0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf };
548 /* Calculate CRC32 of a multicast group address */
550 sln_ether_crc32(caddr_t addr)
554 unsigned char data = 0;
555 /* Compute CRC for the address value. */
557 crc = 0xFFFFFFFF; /* initial value */
559 for (i = ETHER_ADDR_LEN; i > 0; i--) {
562 for (j = 0; j < 8; j++) {
563 if (((data & 0x1) ^ (crc & 0x1)) != 0) {
573 crcr = shade_map[crc >> 28];
574 crcr |= (shade_map[(crc >> 24) & 0xf] << 4);
575 crcr |= (shade_map[(crc >> 20) & 0xf] << 8);
576 crcr |= (shade_map[(crc >> 16) & 0xf] << 12);
577 crcr |= (shade_map[(crc >> 12) & 0xf] << 16);
578 crcr |= (shade_map[(crc >> 8) & 0xf] << 20);
579 crcr |= (shade_map[(crc >> 4) & 0xf] << 24);
580 crcr |= (shade_map[crc & 0xf] << 28);
585 /* Program the 64-bit multicast hash filter */
587 sln_set_multi(struct sln_softc *sc)
589 struct ifnet *ifp = &sc->arpcom.ac_if;
591 uint32_t mc_g[2] = {0, 0};
592 struct ifmultiaddr *ifma;
595 if (ifp->if_flags & IFF_PROMISC) {
596 kprintf("Promisc mode is enabled\n");
597 sc->rxcfg |= SL_RXCFG_EN | SL_RXCFG_RCV_MULTI;
598 mc_g[0] = mc_g[1] = 0xFFFFFFFF;
599 } else if (ifp->if_flags & IFF_ALLMULTI) {
600 kprintf("Allmulti mode is enabled\n");
601 sc->rxcfg |= SL_RXCFG_EN | SL_RXCFG_RCV_MULTI;
602 mc_g[0] = mc_g[1] = 0xFFFFFFFF;
603 } else if (ifp->if_flags & IFF_MULTICAST) {
604 kprintf("Multicast mode is enabled\n");
605 sc->rxcfg |= SL_RXCFG_EN | SL_RXCFG_RCV_MULTI;
607 /* first, zero all the existing hash bits */
608 mc_g[0] = mc_g[1] = 0;
610 for (i = 0, ifma = (ifp->if_multiaddrs.lh_first);
611 ifma != NULL && (i < ifma->ifma_refcount);
612 i++, ifma = (ifma->ifma_link.le_next)) {
615 if ((ifma->ifma_addr->sa_family) != AF_LINK)
618 crc = ~sln_ether_crc32(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
635 mc_g[0] |= (0x1 << (j - 32));
637 mc_g[1] |= (0x1 << j);
640 sc->rxcfg &= ~(SL_RXCFG_EN | SL_RXCFG_RCV_MULTI);
643 SLN_WRITE_4(sc, SL_RX_CONFIG, sc->rxcfg);
644 SLN_WRITE_4(sc, SL_MULTI_GROUP0, mc_g[0]);
645 SLN_WRITE_4(sc, SL_MULTI_GROUP1, mc_g[1]);
648 /* Initialize the TX/Rx descriptors */
650 sln_init_tx(struct sln_softc *sc)
654 sc->sln_bufdata.cur_tx = 0;
655 sc->sln_bufdata.dirty_tx = 0;
657 for (i = 0; i < SL_TXD_CNT; i++) {
658 sc->sln_bufdata.sln_tx_buf[i] = NULL;
659 SLN_WRITE_4(sc, SL_TSAD0 + (i * 4), 0);
663 /* Software & Hardware Initialize */
667 struct sln_softc *sc = x;
668 struct ifnet *ifp = &sc->arpcom.ac_if;
670 PDEBUG("sln_init\n");
672 ASSERT_SERIALIZED(ifp->if_serializer);
676 /* soft reset the chip */
679 /* disable interrupt */
680 SLN_WRITE_4(sc, SL_INT_MASK, 0);
682 /* SLN_WRITE_4(sc, SL_MII_CMD0, SL_MII0_DIVEDER); */
684 /* clear multicast address */
685 SLN_WRITE_4(sc, SL_MULTI_GROUP0, 0);
686 SLN_WRITE_4(sc, SL_MULTI_GROUP1, 0);
688 /* Init the RX buffer start address register. */
689 SLN_WRITE_4(sc, SL_RBSA, vtophys(sc->sln_bufdata.sln_rx_buf));
690 sc->sln_bufdata.dirty_rx = vtophys(sc->sln_bufdata.sln_rx_buf);
692 /* Init TX descriptors. */
695 /* configure RX buffer size */
696 if (sc->tx_early_ctrl && sc->rx_early_ctrl)
697 SLN_WRITE_4(sc, SL_CFG1, SL_EARLY_RX | SL_EARLY_TX | SL_RXBUF_64 | SL_RXFIFO_1024BYTES);
698 else if (sc->tx_early_ctrl)
699 SLN_WRITE_4(sc, SL_CFG1, SL_EARLY_TX | SL_RXBUF_64);
700 else if (sc->rx_early_ctrl)
701 SLN_WRITE_4(sc, SL_CFG1, SL_EARLY_RX | SL_RXBUF_64 | SL_RXFIFO_1024BYTES);
703 SLN_WRITE_4(sc, SL_CFG1, SL_RXBUF_64);
705 /* MII media configuration */
709 /* Enable transmit and receive */
710 sc->rxcfg |= SL_RXCFG_EN;
711 sc->txcfg |= SL_TXCFG_EN;
713 sc->rxcfg &= ~SL_RXCFG_EN;
714 sc->txcfg &= ~SL_TXCFG_EN;
717 SLN_WRITE_4(sc, SL_TX_CONFIG, sc->txcfg);
718 SLN_WRITE_4(sc, SL_RX_CONFIG, sc->rxcfg);
720 /* Enable interrupts */
721 SLN_WRITE_4(sc, SL_INT_MASK, SL_INRTS);
725 ifp->if_flags |= IFF_RUNNING;
726 ifp->if_flags &= ~IFF_OACTIVE;
728 callout_reset(&sc->sln_state, hz, sln_tick, sc);
731 /* Transmit Packet */
733 sln_tx(struct ifnet *ifp)
735 struct sln_softc *sc = ifp->if_softc;
736 struct mbuf *m_head = NULL;
737 struct mbuf *m_new = NULL;
740 ASSERT_SERIALIZED(ifp->if_serializer);
743 ifq_purge(&ifp->if_snd);
747 if ((ifp->if_flags & (IFF_OACTIVE | IFF_RUNNING)) != IFF_RUNNING)
750 while (SL_CUR_TXBUF(sc) == NULL) { /* SL_CUR_TXBUF(x) = x->sln_bufdata.sln_tx_buf[x->sln_bufdata.cur_tx] */
751 entry = sc->sln_bufdata.cur_tx;
753 m_head = ifq_dequeue(&ifp->if_snd, NULL);
757 MGETHDR(m_new, MB_DONTWAIT, MT_DATA);
759 if_printf(ifp, "no memory for tx descriptor");
763 if ((m_head->m_pkthdr.len > MHLEN) || (60 > MHLEN)) {
764 MCLGET(m_new, MB_DONTWAIT);
765 if (!(m_new->m_flags & M_EXT)) {
768 if_printf(ifp, "no memory for tx descriptor");
772 m_copydata(m_head, 0, m_head->m_pkthdr.len, mtod(m_new, caddr_t));
773 m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len;
776 SL_CUR_TXBUF(sc) = m_head;
779 * if there's a BPF listener, bounce a copy of this frame to
782 BPF_MTAP(ifp, SL_CUR_TXBUF(sc));
784 /* Transmit the frame */
785 SLN_WRITE_4(sc, ((entry * 4) + SL_TSAD0),
786 vtophys(mtod(SL_CUR_TXBUF(sc), caddr_t)));
788 /* calculate length of the frame */
789 if ((SL_CUR_TXBUF(sc)->m_pkthdr.len < 60) && (!sc->txenablepad)) {
790 memset(mtod(m_head, char *)+m_head->m_pkthdr.len, 0x20, 60 - m_head->m_pkthdr.len);
791 SLN_WRITE_4(sc, (entry * 4) + SL_TSD0, 60);
792 } else if (SL_CUR_TXBUF(sc)->m_pkthdr.len < 100)
793 SLN_WRITE_4(sc, (entry * 4) + SL_TSD0, SL_CUR_TXBUF(sc)->m_pkthdr.len);
794 else if (SL_CUR_TXBUF(sc)->m_pkthdr.len < 300)
795 SLN_WRITE_4(sc, (entry * 4) + SL_TSD0, 0x30000 | SL_CUR_TXBUF(sc)->m_pkthdr.len);
797 SLN_WRITE_4(sc, (entry * 4) + SL_TSD0, 0x50000 | SL_CUR_TXBUF(sc)->m_pkthdr.len);
798 sc->sln_bufdata.cur_tx = (entry + 1) % SL_TXD_CNT;
800 PDEBUG("Queue tx packet size %d to tx-descriptor %d.\n", m_head->m_pkthdr.len, entry);
803 /* Tx buffer chain full */
804 if (SL_CUR_TXBUF(sc) != NULL)
805 ifp->if_flags |= IFF_OACTIVE;
807 /* Set a timeout in case the chip goes out to lunch */
811 /* Receive Data handler */
813 sln_rx(struct sln_softc *sc)
816 struct ifnet *ifp = &sc->arpcom.ac_if;
819 caddr_t rx_bufpos = NULL;
825 u_long rx_size_align = 0;
826 uint32_t rx_bytes = 0;
829 cur_rx = SLN_READ_4(sc, SL_RBW_PTR);
830 dirty_rx = sc->sln_bufdata.dirty_rx;
833 * cur_rx is only 17 bits in the RxBufWPtr register. if cur_rx can be
834 * used in physical space, we need to change it to 32 bits physical
837 cur_rx |= vtophys(sc->sln_bufdata.sln_rx_buf) & (~(u_long) (SL_RX_BUFLEN - 1));
839 if (cur_rx < vtophys(sc->sln_bufdata.sln_rx_buf))
840 cur_rx += SL_RX_BUFLEN;
842 if (cur_rx >= dirty_rx)
843 rx_len = (long)(cur_rx - dirty_rx);
845 rx_len = SL_RX_BUFLEN - (long)(dirty_rx - cur_rx);
847 if ((rx_len > SL_RX_BUFLEN) || (rx_len < 0)) {
848 if_printf(ifp, "rx len is fail\n");
854 rx_offset = (dirty_rx - vtophys(sc->sln_bufdata.sln_rx_buf)) & (u_long) (SL_RX_BUFLEN - 1);
857 rx_bufpos = sc->sln_bufdata.sln_rx_buf + rx_offset;
858 rxstat = *(uint32_t *) rx_bufpos;
859 rx_size = (rxstat >> 20) & 0x0FFF;
860 rx_size_align = (rx_size + 3) & ~3; /* for 4 bytes aligned */
861 pkt_size = rx_size - ETHER_CRC_LEN; /* Omit the four octet
862 * CRC from the length. */
864 PDEBUG("rx len: %ld rx frame size:%ld rx state:0x%x\n", rx_len, rx_size, rxstat);
866 /* errors receive packets caculatation */
867 if (rxstat == 0 || rx_size < 16 || !(rxstat & SL_RXSTAT_RXOK)) {
870 if (!(rxstat & SL_RXSTAT_RXOK))
871 if_printf(ifp, "receiver ok error\n");
873 if (!(rxstat & SL_RXSTAT_CRCOK))
874 if_printf(ifp, "crc error\n");
876 if (rxstat & SL_RXSTAT_ALIGNERR)
877 if_printf(ifp, "frame alignment error\n");
879 if (rxstat & (SL_RXSTAT_HUGEFRM | SL_RXSTAT_SMALLFRM))
880 if_printf(ifp, "received frame length is error\n");
884 rx_len -= (long)(rx_size_align + 4); /* 4 bytes for receive
888 kprintf("rx packets len is too small\n");
894 if_printf(ifp, "rx frame content\n");
896 for (i = 0; i < 30; i++, p++) {
899 if_printf(ifp, "%x ", (u_char)*p);
901 if_printf(ifp, "\n");
903 /* No errors; receive the packet. */
904 rx_bytes = rx_bytes + rx_size + 4; /* 4 bytes for receive
907 if (rx_bufpos == (sc->sln_bufdata.sln_rx_buf + SL_RX_BUFLEN))
908 rx_bufpos = sc->sln_bufdata.sln_rx_buf;
910 rx_bufpos = rx_bufpos + 4; /* 4 bytes for receive frame
912 rx_space = (u_long)((sc->sln_bufdata.sln_rx_buf + SL_RX_BUFLEN) - rx_bufpos);
914 if (pkt_size > rx_space) {
915 m = m_devget(rx_bufpos - 2, pkt_size + 2, 0, ifp, NULL); /* 2 for etherer head
921 "out of mbufs, tried to copy %ld bytes\n",
925 m_copyback(m, rx_space, pkt_size - rx_space, sc->sln_bufdata.sln_rx_buf);
928 m = m_devget(rx_bufpos - 2, pkt_size + 2, 0, ifp, NULL);
933 "out of mbufs, tried to copy %ld bytes\n",
935 if_printf(ifp, "ierrors = %ld\n", ifp->if_ierrors);
943 PDEBUG("ipackets = %ld\n", ifp->if_ipackets);
945 ifp->if_input(ifp, m);
947 rx_offset = (rx_offset + rx_size + 4) & (u_long) (SL_RX_BUFLEN - 1); /* 4 bytes for receive
951 sc->sln_bufdata.dirty_rx = cur_rx;
953 SLN_WRITE_4(sc, SL_RBR_PTR, cur_rx);
956 /* Transmit OK/ERR handler */
958 sln_tx_intr(struct sln_softc *sc)
960 struct ifnet *ifp = &sc->arpcom.ac_if;
965 entry = sc->sln_bufdata.dirty_tx;
966 txstat = SLN_READ_4(sc, SL_TSD0 + entry * 4);
968 if (!(txstat & (SL_TXSD_TOK | SL_TXSD_TUN | SL_TXSD_TABT)))
969 break; /* It still hasn't been sent */
971 if (SL_DIRTY_TXBUF(sc) != NULL) { /* SL_DIRTY_TXBUF(x) =
972 * x->sln_bufdata.sln_tx_
973 * buf[x->sln_bufdata.dir
975 m_freem(SL_DIRTY_TXBUF(sc));
976 SL_DIRTY_TXBUF(sc) = NULL;
978 if (txstat & SL_TXSD_TOK) {
980 ifp->if_obytes += txstat & SL_TXSD_LENMASK;
981 PDEBUG("opackets = %ld\n", ifp->if_opackets);
982 ifp->if_collisions += (txstat & SL_TXSD_NCC) >> 22;
985 if ((txstat & (SL_TXSD_TABT | SL_TXSD_OWC))) {
986 sc->txcfg = TX_CFG_DEFAULT;
989 sc->txcfg |= 0x20000000;
991 SLN_WRITE_4(sc, SL_TX_CONFIG, sc->txcfg);
994 PDEBUG("tx done descriprtor %x\n", entry);
995 sc->sln_bufdata.dirty_tx = (entry + 1) % SL_TXD_CNT;
997 ifp->if_flags &= ~IFF_OACTIVE;
998 } while (sc->sln_bufdata.dirty_tx != sc->sln_bufdata.cur_tx);
1000 if (sc->sln_bufdata.dirty_tx == sc->sln_bufdata.cur_tx)
1007 sln_media_intr(struct sln_softc *sc)
1010 struct ifnet *ifp = &sc->arpcom.ac_if;
1012 phys[0] = SL_MII_STAT;
1013 sln_mii_cmd(sc, SL_MII0_READ, phys);
1015 PDEBUG("mii_stat:0x%lx\n", phys[1]);
1017 if (0 == (phys[1] & SL_MIISTAT_LINK)) {
1018 kprintf("media is unconnect,linked down,or uncompatible\n");
1020 sln_mii_cmd(sc, SL_MII0_SCAN, phys);
1022 sc->txcfg &= ~SL_TXCFG_EN;
1023 sc->rxcfg &= ~SL_RXCFG_EN;
1024 SLN_WRITE_4(sc, SL_TX_CONFIG, sc->txcfg);
1025 SLN_WRITE_4(sc, SL_RX_CONFIG, sc->rxcfg);
1029 /* Link is good. Report modes and set duplex mode. */
1030 PDEBUG("media is connecting---> ");
1033 phys[0] = SL_MII_STAT_OUTPUT;
1034 sln_mii_cmd(sc, SL_MII0_READ, phys);
1035 sc->media_duplex = ((phys[1] & 0x0004) == 0) ? IFM_HDX : IFM_FDX;
1036 sc->media_speed = ((phys[1] & 0x0002) == 0) ? IFM_10_T : IFM_100_TX;
1038 if_printf(ifp, "media option:%dM %s-duplex\n",
1039 sc->media_speed == 0x6 ? 100 : 10,
1040 sc->media_duplex == 0x100000 ? "full" : "half");
1042 sln_mii_cmd(sc, SL_MII0_SCAN, phys);
1047 sc->rxcfg |= SL_RXCFG_EN;
1048 sc->txcfg |= SL_TXCFG_EN;
1049 SLN_WRITE_4(sc, SL_TX_CONFIG, sc->txcfg);
1050 SLN_WRITE_4(sc, SL_RX_CONFIG, sc->rxcfg);
1053 /* Interrupt Handler */
1055 sln_interrupt(void *arg)
1057 struct sln_softc *sc = arg;
1058 struct ifnet *ifp = &sc->arpcom.ac_if;
1059 uint32_t int_status;
1061 ASSERT_SERIALIZED(ifp->if_serializer);
1063 if (sc->suspended || (ifp->if_flags & IFF_RUNNING) == 0)
1066 /* Disable interrupts. */
1067 SLN_WRITE_4(sc, SL_INT_MASK, 0);
1069 int_status = SLN_READ_4(sc, SL_INT_STATUS);
1071 if ((int_status == 0xffffffff) || (int_status & SL_INRTS) == 0)
1074 int_status = int_status & SL_INRTS;
1075 PDEBUG("int_status = 0x%x\n", int_status);
1077 while (0 != int_status) {
1078 if (int_status & SL_INT_ROK)
1081 if (int_status & SL_INT_TOK)
1084 if (int_status & SL_INT_RBO) {
1086 PDEBUG("rx buffer is overflow\n");
1089 if (int_status & (SL_INT_LINKFAIL | SL_INT_LINKOK))
1092 int_status = SLN_READ_4(sc, SL_INT_STATUS);
1095 /* Data in Tx buffer waiting for transimission */
1096 if (!ifq_is_empty(&ifp->if_snd))
1099 /* Re-enable interrupts. */
1100 SLN_WRITE_4(sc, SL_INT_MASK, SL_INRTS);
1106 struct sln_softc *sc = x;
1108 callout_reset(&sc->sln_state, hz, sln_tick, sc);
1112 sln_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1114 struct sln_softc *sc = ifp->if_softc;
1115 struct ifreq *ifr = (struct ifreq *)data;
1118 ASSERT_SERIALIZED(ifp->if_serializer);
1122 if (ifp->if_flags & IFF_UP) {
1123 if ((ifp->if_flags & IFF_RUNNING) == 0)
1126 if (ifp->if_flags & IFF_RUNNING)
1136 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, cmd);
1139 error = ether_ioctl(ifp, cmd, data);
1146 sln_watchdog(struct ifnet *ifp)
1148 struct sln_softc *sc = ifp->if_softc;
1150 ASSERT_SERIALIZED(ifp->if_serializer);
1152 if_printf(ifp, "watchdog timeout!\n");
1159 if (!ifq_is_empty(&ifp->if_snd))
1163 /* Stop all chip I/O */
1165 sln_shutdown(device_t dev)
1167 struct sln_softc *sc = device_get_softc(dev);
1168 struct ifnet *ifp = &sc->arpcom.ac_if;
1170 lwkt_serialize_enter(ifp->if_serializer);
1172 lwkt_serialize_exit(ifp->if_serializer);
1177 /* device suspend routine */
1179 sln_suspend(device_t dev)
1181 struct sln_softc *sc = device_get_softc(dev);
1182 struct ifnet *ifp = &sc->arpcom.ac_if;
1184 lwkt_serialize_enter(ifp->if_serializer);
1187 lwkt_serialize_exit(ifp->if_serializer);
1192 /* device resume routine */
1194 sln_resume(device_t dev)
1196 struct sln_softc *sc = device_get_softc(dev);
1197 struct ifnet *ifp = &sc->arpcom.ac_if;
1199 lwkt_serialize_enter(ifp->if_serializer);
1200 if (ifp->if_flags & IFF_UP)
1203 lwkt_serialize_exit(ifp->if_serializer);