2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * 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 the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
32 * $FreeBSD: src/sys/pci/if_xl.c,v 1.72.2.28 2003/10/08 06:01:57 murray Exp $
33 * $DragonFly: src/sys/dev/netif/xl/if_xl.c,v 1.27 2005/06/20 15:10:41 joerg Exp $
37 * 3Com 3c90x Etherlink XL PCI NIC driver
39 * Supports the 3Com "boomerang", "cyclone" and "hurricane" PCI
40 * bus-master chips (3c90x cards and embedded controllers) including
43 * 3Com 3c900-TPO 10Mbps/RJ-45
44 * 3Com 3c900-COMBO 10Mbps/RJ-45,AUI,BNC
45 * 3Com 3c905-TX 10/100Mbps/RJ-45
46 * 3Com 3c905-T4 10/100Mbps/RJ-45
47 * 3Com 3c900B-TPO 10Mbps/RJ-45
48 * 3Com 3c900B-COMBO 10Mbps/RJ-45,AUI,BNC
49 * 3Com 3c900B-TPC 10Mbps/RJ-45,BNC
50 * 3Com 3c900B-FL 10Mbps/Fiber-optic
51 * 3Com 3c905B-COMBO 10/100Mbps/RJ-45,AUI,BNC
52 * 3Com 3c905B-TX 10/100Mbps/RJ-45
53 * 3Com 3c905B-FL/FX 10/100Mbps/Fiber-optic
54 * 3Com 3c905C-TX 10/100Mbps/RJ-45 (Tornado ASIC)
55 * 3Com 3c980-TX 10/100Mbps server adapter (Hurricane ASIC)
56 * 3Com 3c980C-TX 10/100Mbps server adapter (Tornado ASIC)
57 * 3Com 3cSOHO100-TX 10/100Mbps/RJ-45 (Hurricane ASIC)
58 * 3Com 3c450-TX 10/100Mbps/RJ-45 (Tornado ASIC)
59 * 3Com 3c555 10/100Mbps/RJ-45 (MiniPCI, Laptop Hurricane)
60 * 3Com 3c556 10/100Mbps/RJ-45 (MiniPCI, Hurricane ASIC)
61 * 3Com 3c556B 10/100Mbps/RJ-45 (MiniPCI, Hurricane ASIC)
62 * 3Com 3c575TX 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
63 * 3Com 3c575B 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
64 * 3Com 3c575C 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
65 * 3Com 3cxfem656 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
66 * 3Com 3cxfem656b 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
67 * 3Com 3cxfem656c 10/100Mbps/RJ-45 (Cardbus, Tornado ASIC)
68 * Dell Optiplex GX1 on-board 3c918 10/100Mbps/RJ-45
69 * Dell on-board 3c920 10/100Mbps/RJ-45
70 * Dell Precision on-board 3c905B 10/100Mbps/RJ-45
71 * Dell Latitude laptop docking station embedded 3c905-TX
73 * Written by Bill Paul <wpaul@ctr.columbia.edu>
74 * Electrical Engineering Department
75 * Columbia University, New York City
79 * The 3c90x series chips use a bus-master DMA interface for transfering
80 * packets to and from the controller chip. Some of the "vortex" cards
81 * (3c59x) also supported a bus master mode, however for those chips
82 * you could only DMA packets to/from a contiguous memory buffer. For
83 * transmission this would mean copying the contents of the queued mbuf
84 * chain into an mbuf cluster and then DMAing the cluster. This extra
85 * copy would sort of defeat the purpose of the bus master support for
86 * any packet that doesn't fit into a single mbuf.
88 * By contrast, the 3c90x cards support a fragment-based bus master
89 * mode where mbuf chains can be encapsulated using TX descriptors.
90 * This is similar to other PCI chips such as the Texas Instruments
91 * ThunderLAN and the Intel 82557/82558.
93 * The "vortex" driver (if_vx.c) happens to work for the "boomerang"
94 * bus master chips because they maintain the old PIO interface for
95 * backwards compatibility, but starting with the 3c905B and the
96 * "cyclone" chips, the compatibility interface has been dropped.
97 * Since using bus master DMA is a big win, we use this driver to
98 * support the PCI "boomerang" chips even though they work with the
99 * "vortex" driver in order to obtain better performance.
102 #include <sys/param.h>
103 #include <sys/systm.h>
104 #include <sys/sockio.h>
105 #include <sys/endian.h>
106 #include <sys/mbuf.h>
107 #include <sys/kernel.h>
108 #include <sys/socket.h>
109 #include <sys/thread2.h>
112 #include <net/ifq_var.h>
113 #include <net/if_arp.h>
114 #include <net/ethernet.h>
115 #include <net/if_dl.h>
116 #include <net/if_media.h>
117 #include <net/vlan/if_vlan_var.h>
121 #include <machine/bus_memio.h>
122 #include <machine/bus_pio.h>
123 #include <machine/bus.h>
124 #include <machine/clock.h> /* for DELAY */
125 #include <machine/resource.h>
127 #include <sys/rman.h>
129 #include "../mii_layer/mii.h"
130 #include "../mii_layer/miivar.h"
132 #include <bus/pci/pcireg.h>
133 #include <bus/pci/pcivar.h>
135 /* "controller miibus0" required. See GENERIC if you get errors here. */
136 #include "miibus_if.h"
138 #include "if_xlreg.h"
140 #define XL905B_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
143 * Various supported device vendors/types and their names.
145 static struct xl_type xl_devs[] = {
146 { TC_VENDORID, TC_DEVICEID_BOOMERANG_10BT,
147 "3Com 3c900-TPO Etherlink XL" },
148 { TC_VENDORID, TC_DEVICEID_BOOMERANG_10BT_COMBO,
149 "3Com 3c900-COMBO Etherlink XL" },
150 { TC_VENDORID, TC_DEVICEID_BOOMERANG_10_100BT,
151 "3Com 3c905-TX Fast Etherlink XL" },
152 { TC_VENDORID, TC_DEVICEID_BOOMERANG_100BT4,
153 "3Com 3c905-T4 Fast Etherlink XL" },
154 { TC_VENDORID, TC_DEVICEID_KRAKATOA_10BT,
155 "3Com 3c900B-TPO Etherlink XL" },
156 { TC_VENDORID, TC_DEVICEID_KRAKATOA_10BT_COMBO,
157 "3Com 3c900B-COMBO Etherlink XL" },
158 { TC_VENDORID, TC_DEVICEID_KRAKATOA_10BT_TPC,
159 "3Com 3c900B-TPC Etherlink XL" },
160 { TC_VENDORID, TC_DEVICEID_CYCLONE_10FL,
161 "3Com 3c900B-FL Etherlink XL" },
162 { TC_VENDORID, TC_DEVICEID_HURRICANE_10_100BT,
163 "3Com 3c905B-TX Fast Etherlink XL" },
164 { TC_VENDORID, TC_DEVICEID_CYCLONE_10_100BT4,
165 "3Com 3c905B-T4 Fast Etherlink XL" },
166 { TC_VENDORID, TC_DEVICEID_CYCLONE_10_100FX,
167 "3Com 3c905B-FX/SC Fast Etherlink XL" },
168 { TC_VENDORID, TC_DEVICEID_CYCLONE_10_100_COMBO,
169 "3Com 3c905B-COMBO Fast Etherlink XL" },
170 { TC_VENDORID, TC_DEVICEID_TORNADO_10_100BT,
171 "3Com 3c905C-TX Fast Etherlink XL" },
172 { TC_VENDORID, TC_DEVICEID_TORNADO_10_100BT_920B,
173 "3Com 3c920B-EMB Integrated Fast Etherlink XL" },
174 { TC_VENDORID, TC_DEVICEID_HURRICANE_10_100BT_SERV,
175 "3Com 3c980 Fast Etherlink XL" },
176 { TC_VENDORID, TC_DEVICEID_TORNADO_10_100BT_SERV,
177 "3Com 3c980C Fast Etherlink XL" },
178 { TC_VENDORID, TC_DEVICEID_HURRICANE_SOHO100TX,
179 "3Com 3cSOHO100-TX OfficeConnect" },
180 { TC_VENDORID, TC_DEVICEID_TORNADO_HOMECONNECT,
181 "3Com 3c450-TX HomeConnect" },
182 { TC_VENDORID, TC_DEVICEID_HURRICANE_555,
183 "3Com 3c555 Fast Etherlink XL" },
184 { TC_VENDORID, TC_DEVICEID_HURRICANE_556,
185 "3Com 3c556 Fast Etherlink XL" },
186 { TC_VENDORID, TC_DEVICEID_HURRICANE_556B,
187 "3Com 3c556B Fast Etherlink XL" },
188 { TC_VENDORID, TC_DEVICEID_HURRICANE_575A,
189 "3Com 3c575TX Fast Etherlink XL" },
190 { TC_VENDORID, TC_DEVICEID_HURRICANE_575B,
191 "3Com 3c575B Fast Etherlink XL" },
192 { TC_VENDORID, TC_DEVICEID_HURRICANE_575C,
193 "3Com 3c575C Fast Etherlink XL" },
194 { TC_VENDORID, TC_DEVICEID_HURRICANE_656,
195 "3Com 3c656 Fast Etherlink XL" },
196 { TC_VENDORID, TC_DEVICEID_HURRICANE_656B,
197 "3Com 3c656B Fast Etherlink XL" },
198 { TC_VENDORID, TC_DEVICEID_TORNADO_656C,
199 "3Com 3c656C Fast Etherlink XL" },
203 static int xl_probe (device_t);
204 static int xl_attach (device_t);
205 static int xl_detach (device_t);
207 static int xl_newbuf (struct xl_softc *, struct xl_chain_onefrag *);
208 static void xl_stats_update (void *);
209 static int xl_encap (struct xl_softc *, struct xl_chain *,
211 static void xl_rxeof (struct xl_softc *);
212 static int xl_rx_resync (struct xl_softc *);
213 static void xl_txeof (struct xl_softc *);
214 static void xl_txeof_90xB (struct xl_softc *);
215 static void xl_txeoc (struct xl_softc *);
216 static void xl_intr (void *);
217 static void xl_start (struct ifnet *);
218 static void xl_start_90xB (struct ifnet *);
219 static int xl_ioctl (struct ifnet *, u_long, caddr_t,
221 static void xl_init (void *);
222 static void xl_stop (struct xl_softc *);
223 static void xl_watchdog (struct ifnet *);
224 static void xl_shutdown (device_t);
225 static int xl_suspend (device_t);
226 static int xl_resume (device_t);
228 static int xl_ifmedia_upd (struct ifnet *);
229 static void xl_ifmedia_sts (struct ifnet *, struct ifmediareq *);
231 static int xl_eeprom_wait (struct xl_softc *);
232 static int xl_read_eeprom (struct xl_softc *, caddr_t, int, int, int);
233 static void xl_mii_sync (struct xl_softc *);
234 static void xl_mii_send (struct xl_softc *, u_int32_t, int);
235 static int xl_mii_readreg (struct xl_softc *, struct xl_mii_frame *);
236 static int xl_mii_writereg (struct xl_softc *, struct xl_mii_frame *);
238 static void xl_setcfg (struct xl_softc *);
239 static void xl_setmode (struct xl_softc *, int);
240 static u_int8_t xl_calchash (caddr_t);
241 static void xl_setmulti (struct xl_softc *);
242 static void xl_setmulti_hash (struct xl_softc *);
243 static void xl_reset (struct xl_softc *);
244 static int xl_list_rx_init (struct xl_softc *);
245 static int xl_list_tx_init (struct xl_softc *);
246 static int xl_list_tx_init_90xB (struct xl_softc *);
247 static void xl_wait (struct xl_softc *);
248 static void xl_mediacheck (struct xl_softc *);
249 static void xl_choose_xcvr (struct xl_softc *, int);
250 static void xl_dma_map_addr (void *, bus_dma_segment_t *, int, int);
251 static void xl_dma_map_rxbuf (void *, bus_dma_segment_t *, int, bus_size_t,
253 static void xl_dma_map_txbuf (void *, bus_dma_segment_t *, int, bus_size_t,
256 static void xl_testpacket (struct xl_softc *);
259 static int xl_miibus_readreg (device_t, int, int);
260 static int xl_miibus_writereg (device_t, int, int, int);
261 static void xl_miibus_statchg (device_t);
262 static void xl_miibus_mediainit (device_t);
264 static device_method_t xl_methods[] = {
265 /* Device interface */
266 DEVMETHOD(device_probe, xl_probe),
267 DEVMETHOD(device_attach, xl_attach),
268 DEVMETHOD(device_detach, xl_detach),
269 DEVMETHOD(device_shutdown, xl_shutdown),
270 DEVMETHOD(device_suspend, xl_suspend),
271 DEVMETHOD(device_resume, xl_resume),
274 DEVMETHOD(bus_print_child, bus_generic_print_child),
275 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
278 DEVMETHOD(miibus_readreg, xl_miibus_readreg),
279 DEVMETHOD(miibus_writereg, xl_miibus_writereg),
280 DEVMETHOD(miibus_statchg, xl_miibus_statchg),
281 DEVMETHOD(miibus_mediainit, xl_miibus_mediainit),
286 static driver_t xl_driver = {
289 sizeof(struct xl_softc)
292 static devclass_t xl_devclass;
294 DECLARE_DUMMY_MODULE(if_xl);
295 MODULE_DEPEND(if_xl, miibus, 1, 1, 1);
296 DRIVER_MODULE(if_xl, pci, xl_driver, xl_devclass, 0, 0);
297 DRIVER_MODULE(miibus, xl, miibus_driver, miibus_devclass, 0, 0);
300 xl_dma_map_addr(arg, segs, nseg, error)
302 bus_dma_segment_t *segs;
308 *paddr = segs->ds_addr;
312 xl_dma_map_rxbuf(arg, segs, nseg, mapsize, error)
314 bus_dma_segment_t *segs;
323 KASSERT(nseg == 1, ("xl_dma_map_rxbuf: too many DMA segments"));
325 *paddr = segs->ds_addr;
329 xl_dma_map_txbuf(arg, segs, nseg, mapsize, error)
331 bus_dma_segment_t *segs;
342 KASSERT(nseg <= XL_MAXFRAGS, ("too many DMA segments"));
346 for (i = 0; i < nseg; i++) {
347 KASSERT(segs[i].ds_len <= MCLBYTES, ("segment size too large"));
348 l->xl_frag[i].xl_addr = htole32(segs[i].ds_addr);
349 l->xl_frag[i].xl_len = htole32(segs[i].ds_len);
350 total_len += segs[i].ds_len;
352 l->xl_frag[nseg - 1].xl_len = htole32(segs[nseg - 1].ds_len |
354 l->xl_status = htole32(total_len);
359 * Murphy's law says that it's possible the chip can wedge and
360 * the 'command in progress' bit may never clear. Hence, we wait
361 * only a finite amount of time to avoid getting caught in an
362 * infinite loop. Normally this delay routine would be a macro,
363 * but it isn't called during normal operation so we can afford
364 * to make it a function.
372 for (i = 0; i < XL_TIMEOUT; i++) {
373 if (!(CSR_READ_2(sc, XL_STATUS) & XL_STAT_CMDBUSY))
378 if_printf(&sc->arpcom.ac_if, "command never completed!");
384 * MII access routines are provided for adapters with external
385 * PHYs (3c905-TX, 3c905-T4, 3c905B-T4) and those with built-in
386 * autoneg logic that's faked up to look like a PHY (3c905B-TX).
387 * Note: if you don't perform the MDIO operations just right,
388 * it's possible to end up with code that works correctly with
389 * some chips/CPUs/processor speeds/bus speeds/etc but not
393 CSR_WRITE_2(sc, XL_W4_PHY_MGMT, \
394 CSR_READ_2(sc, XL_W4_PHY_MGMT) | (x))
397 CSR_WRITE_2(sc, XL_W4_PHY_MGMT, \
398 CSR_READ_2(sc, XL_W4_PHY_MGMT) & ~(x))
401 * Sync the PHYs by setting data bit and strobing the clock 32 times.
410 MII_SET(XL_MII_DIR|XL_MII_DATA);
412 for (i = 0; i < 32; i++) {
414 MII_SET(XL_MII_DATA);
415 MII_SET(XL_MII_DATA);
417 MII_SET(XL_MII_DATA);
418 MII_SET(XL_MII_DATA);
425 * Clock a series of bits through the MII.
428 xl_mii_send(sc, bits, cnt)
438 for (i = (0x1 << (cnt - 1)); i; i >>= 1) {
440 MII_SET(XL_MII_DATA);
442 MII_CLR(XL_MII_DATA);
450 * Read an PHY register through the MII.
453 xl_mii_readreg(sc, frame)
455 struct xl_mii_frame *frame;
463 * Set up frame for RX.
465 frame->mii_stdelim = XL_MII_STARTDELIM;
466 frame->mii_opcode = XL_MII_READOP;
467 frame->mii_turnaround = 0;
471 * Select register window 4.
476 CSR_WRITE_2(sc, XL_W4_PHY_MGMT, 0);
485 * Send command/address info.
487 xl_mii_send(sc, frame->mii_stdelim, 2);
488 xl_mii_send(sc, frame->mii_opcode, 2);
489 xl_mii_send(sc, frame->mii_phyaddr, 5);
490 xl_mii_send(sc, frame->mii_regaddr, 5);
493 MII_CLR((XL_MII_CLK|XL_MII_DATA));
501 ack = CSR_READ_2(sc, XL_W4_PHY_MGMT) & XL_MII_DATA;
505 * Now try reading data bits. If the ack failed, we still
506 * need to clock through 16 cycles to keep the PHY(s) in sync.
509 for(i = 0; i < 16; i++) {
516 for (i = 0x8000; i; i >>= 1) {
519 if (CSR_READ_2(sc, XL_W4_PHY_MGMT) & XL_MII_DATA)
520 frame->mii_data |= i;
538 * Write to a PHY register through the MII.
541 xl_mii_writereg(sc, frame)
543 struct xl_mii_frame *frame;
549 * Set up frame for TX.
552 frame->mii_stdelim = XL_MII_STARTDELIM;
553 frame->mii_opcode = XL_MII_WRITEOP;
554 frame->mii_turnaround = XL_MII_TURNAROUND;
557 * Select the window 4.
562 * Turn on data output.
568 xl_mii_send(sc, frame->mii_stdelim, 2);
569 xl_mii_send(sc, frame->mii_opcode, 2);
570 xl_mii_send(sc, frame->mii_phyaddr, 5);
571 xl_mii_send(sc, frame->mii_regaddr, 5);
572 xl_mii_send(sc, frame->mii_turnaround, 2);
573 xl_mii_send(sc, frame->mii_data, 16);
590 xl_miibus_readreg(dev, phy, reg)
595 struct xl_mii_frame frame;
597 sc = device_get_softc(dev);
600 * Pretend that PHYs are only available at MII address 24.
601 * This is to guard against problems with certain 3Com ASIC
602 * revisions that incorrectly map the internal transceiver
603 * control registers at all MII addresses. This can cause
604 * the miibus code to attach the same PHY several times over.
606 if ((!(sc->xl_flags & XL_FLAG_PHYOK)) && phy != 24)
609 bzero((char *)&frame, sizeof(frame));
611 frame.mii_phyaddr = phy;
612 frame.mii_regaddr = reg;
613 xl_mii_readreg(sc, &frame);
615 return(frame.mii_data);
619 xl_miibus_writereg(dev, phy, reg, data)
624 struct xl_mii_frame frame;
626 sc = device_get_softc(dev);
628 if ((!(sc->xl_flags & XL_FLAG_PHYOK)) && phy != 24)
631 bzero((char *)&frame, sizeof(frame));
633 frame.mii_phyaddr = phy;
634 frame.mii_regaddr = reg;
635 frame.mii_data = data;
637 xl_mii_writereg(sc, &frame);
643 xl_miibus_statchg(dev)
647 struct mii_data *mii;
650 sc = device_get_softc(dev);
651 mii = device_get_softc(sc->xl_miibus);
655 /* Set ASIC's duplex mode to match the PHY. */
657 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
658 CSR_WRITE_1(sc, XL_W3_MAC_CTRL, XL_MACCTRL_DUPLEX);
660 CSR_WRITE_1(sc, XL_W3_MAC_CTRL,
661 (CSR_READ_1(sc, XL_W3_MAC_CTRL) & ~XL_MACCTRL_DUPLEX));
667 * Special support for the 3c905B-COMBO. This card has 10/100 support
668 * plus BNC and AUI ports. This means we will have both an miibus attached
669 * plus some non-MII media settings. In order to allow this, we have to
670 * add the extra media to the miibus's ifmedia struct, but we can't do
671 * that during xl_attach() because the miibus hasn't been attached yet.
672 * So instead, we wait until the miibus probe/attach is done, at which
673 * point we will get a callback telling is that it's safe to add our
677 xl_miibus_mediainit(dev)
681 struct mii_data *mii;
684 sc = device_get_softc(dev);
685 mii = device_get_softc(sc->xl_miibus);
686 ifm = &mii->mii_media;
688 if (sc->xl_media & (XL_MEDIAOPT_AUI|XL_MEDIAOPT_10FL)) {
690 * Check for a 10baseFL board in disguise.
692 if (sc->xl_type == XL_TYPE_905B &&
693 sc->xl_media == XL_MEDIAOPT_10FL) {
695 device_printf(dev, "found 10baseFL\n");
696 ifmedia_add(ifm, IFM_ETHER|IFM_10_FL, 0, NULL);
697 ifmedia_add(ifm, IFM_ETHER|IFM_10_FL|IFM_HDX, 0, NULL);
698 if (sc->xl_caps & XL_CAPS_FULL_DUPLEX)
700 IFM_ETHER|IFM_10_FL|IFM_FDX, 0, NULL);
703 device_printf(dev, "found AUI\n");
704 ifmedia_add(ifm, IFM_ETHER|IFM_10_5, 0, NULL);
708 if (sc->xl_media & XL_MEDIAOPT_BNC) {
710 device_printf(dev, "found BNC\n");
711 ifmedia_add(ifm, IFM_ETHER|IFM_10_2, 0, NULL);
718 * The EEPROM is slow: give it time to come ready after issuing
727 for (i = 0; i < 100; i++) {
728 if (CSR_READ_2(sc, XL_W0_EE_CMD) & XL_EE_BUSY)
735 if_printf(&sc->arpcom.ac_if, "eeprom failed to come ready\n");
743 * Read a sequence of words from the EEPROM. Note that ethernet address
744 * data is stored in the EEPROM in network byte order.
747 xl_read_eeprom(sc, dest, off, cnt, swap)
755 u_int16_t word = 0, *ptr;
756 #define EEPROM_5BIT_OFFSET(A) ((((A) << 2) & 0x7F00) | ((A) & 0x003F))
757 #define EEPROM_8BIT_OFFSET(A) ((A) & 0x003F)
759 * It's easy to accidentally overwrite the rom content!
760 * Note: the 3c575 uses 8bit EEPROM offsets.
764 if (xl_eeprom_wait(sc))
767 if (sc->xl_flags & XL_FLAG_EEPROM_OFFSET_30)
770 for (i = 0; i < cnt; i++) {
771 if (sc->xl_flags & XL_FLAG_8BITROM)
772 CSR_WRITE_2(sc, XL_W0_EE_CMD,
773 XL_EE_8BIT_READ | EEPROM_8BIT_OFFSET(off + i));
775 CSR_WRITE_2(sc, XL_W0_EE_CMD,
776 XL_EE_READ | EEPROM_5BIT_OFFSET(off + i));
777 err = xl_eeprom_wait(sc);
780 word = CSR_READ_2(sc, XL_W0_EE_DATA);
781 ptr = (u_int16_t *)(dest + (i * 2));
792 * This routine is taken from the 3Com Etherlink XL manual,
793 * page 10-7. It calculates a CRC of the supplied multicast
794 * group address and returns the lower 8 bits, which are used
795 * as the multicast filter position.
796 * Note: the 3c905B currently only supports a 64-bit hash table,
797 * which means we really only need 6 bits, but the manual indicates
798 * that future chip revisions will have a 256-bit hash table,
799 * hence the routine is set up to calculate 8 bits of position
800 * info in case we need it some day.
801 * Note II, The Sequel: _CURRENT_ versions of the 3c905B have a
802 * 256 bit hash table. This means we have to use all 8 bits regardless.
803 * On older cards, the upper 2 bits will be ignored. Grrrr....
805 static u_int8_t xl_calchash(addr)
808 u_int32_t crc, carry;
812 /* Compute CRC for the address value. */
813 crc = 0xFFFFFFFF; /* initial value */
815 for (i = 0; i < 6; i++) {
817 for (j = 0; j < 8; j++) {
818 carry = ((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01);
822 crc = (crc ^ 0x04c11db6) | carry;
826 /* return the filter bit position */
827 return(crc & 0x000000FF);
831 * NICs older than the 3c905B have only one multicast option, which
832 * is to enable reception of all multicast frames.
839 struct ifmultiaddr *ifma;
843 ifp = &sc->arpcom.ac_if;
846 rxfilt = CSR_READ_1(sc, XL_W5_RX_FILTER);
848 if (ifp->if_flags & IFF_ALLMULTI) {
849 rxfilt |= XL_RXFILTER_ALLMULTI;
850 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
854 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
858 rxfilt |= XL_RXFILTER_ALLMULTI;
860 rxfilt &= ~XL_RXFILTER_ALLMULTI;
862 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
868 * 3c905B adapters have a hash filter that we can program.
876 struct ifmultiaddr *ifma;
880 ifp = &sc->arpcom.ac_if;
883 rxfilt = CSR_READ_1(sc, XL_W5_RX_FILTER);
885 if (ifp->if_flags & IFF_ALLMULTI) {
886 rxfilt |= XL_RXFILTER_ALLMULTI;
887 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
890 rxfilt &= ~XL_RXFILTER_ALLMULTI;
893 /* first, zot all the existing hash bits */
894 for (i = 0; i < XL_HASHFILT_SIZE; i++)
895 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_HASH|i);
897 /* now program new ones */
898 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
899 if (ifma->ifma_addr->sa_family != AF_LINK)
901 h = xl_calchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
902 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_HASH|XL_HASH_SET|h);
907 rxfilt |= XL_RXFILTER_MULTIHASH;
909 rxfilt &= ~XL_RXFILTER_MULTIHASH;
911 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
924 ifp = &sc->arpcom.ac_if;
926 MGETHDR(m, MB_DONTWAIT, MT_DATA);
931 bcopy(&sc->arpcom.ac_enaddr,
932 mtod(m, struct ether_header *)->ether_dhost, ETHER_ADDR_LEN);
933 bcopy(&sc->arpcom.ac_enaddr,
934 mtod(m, struct ether_header *)->ether_shost, ETHER_ADDR_LEN);
935 mtod(m, struct ether_header *)->ether_type = htons(3);
936 mtod(m, unsigned char *)[14] = 0;
937 mtod(m, unsigned char *)[15] = 0;
938 mtod(m, unsigned char *)[16] = 0xE3;
939 m->m_len = m->m_pkthdr.len = sizeof(struct ether_header) + 3;
940 IF_ENQUEUE(&ifp->if_snd, m);
954 icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG);
955 icfg &= ~XL_ICFG_CONNECTOR_MASK;
956 if (sc->xl_media & XL_MEDIAOPT_MII ||
957 sc->xl_media & XL_MEDIAOPT_BT4)
958 icfg |= (XL_XCVR_MII << XL_ICFG_CONNECTOR_BITS);
959 if (sc->xl_media & XL_MEDIAOPT_BTX)
960 icfg |= (XL_XCVR_AUTO << XL_ICFG_CONNECTOR_BITS);
962 CSR_WRITE_4(sc, XL_W3_INTERNAL_CFG, icfg);
963 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_STOP);
969 xl_setmode(sc, media)
973 struct ifnet *ifp = &sc->arpcom.ac_if;
977 if_printf(ifp, "selecting ");
980 mediastat = CSR_READ_2(sc, XL_W4_MEDIA_STATUS);
982 icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG);
984 if (sc->xl_media & XL_MEDIAOPT_BT) {
985 if (IFM_SUBTYPE(media) == IFM_10_T) {
986 printf("10baseT transceiver, ");
987 sc->xl_xcvr = XL_XCVR_10BT;
988 icfg &= ~XL_ICFG_CONNECTOR_MASK;
989 icfg |= (XL_XCVR_10BT << XL_ICFG_CONNECTOR_BITS);
990 mediastat |= XL_MEDIASTAT_LINKBEAT|
991 XL_MEDIASTAT_JABGUARD;
992 mediastat &= ~XL_MEDIASTAT_SQEENB;
996 if (sc->xl_media & XL_MEDIAOPT_BFX) {
997 if (IFM_SUBTYPE(media) == IFM_100_FX) {
998 printf("100baseFX port, ");
999 sc->xl_xcvr = XL_XCVR_100BFX;
1000 icfg &= ~XL_ICFG_CONNECTOR_MASK;
1001 icfg |= (XL_XCVR_100BFX << XL_ICFG_CONNECTOR_BITS);
1002 mediastat |= XL_MEDIASTAT_LINKBEAT;
1003 mediastat &= ~XL_MEDIASTAT_SQEENB;
1007 if (sc->xl_media & (XL_MEDIAOPT_AUI|XL_MEDIAOPT_10FL)) {
1008 if (IFM_SUBTYPE(media) == IFM_10_5) {
1009 printf("AUI port, ");
1010 sc->xl_xcvr = XL_XCVR_AUI;
1011 icfg &= ~XL_ICFG_CONNECTOR_MASK;
1012 icfg |= (XL_XCVR_AUI << XL_ICFG_CONNECTOR_BITS);
1013 mediastat &= ~(XL_MEDIASTAT_LINKBEAT|
1014 XL_MEDIASTAT_JABGUARD);
1015 mediastat |= ~XL_MEDIASTAT_SQEENB;
1017 if (IFM_SUBTYPE(media) == IFM_10_FL) {
1018 printf("10baseFL transceiver, ");
1019 sc->xl_xcvr = XL_XCVR_AUI;
1020 icfg &= ~XL_ICFG_CONNECTOR_MASK;
1021 icfg |= (XL_XCVR_AUI << XL_ICFG_CONNECTOR_BITS);
1022 mediastat &= ~(XL_MEDIASTAT_LINKBEAT|
1023 XL_MEDIASTAT_JABGUARD);
1024 mediastat |= ~XL_MEDIASTAT_SQEENB;
1028 if (sc->xl_media & XL_MEDIAOPT_BNC) {
1029 if (IFM_SUBTYPE(media) == IFM_10_2) {
1030 printf("BNC port, ");
1031 sc->xl_xcvr = XL_XCVR_COAX;
1032 icfg &= ~XL_ICFG_CONNECTOR_MASK;
1033 icfg |= (XL_XCVR_COAX << XL_ICFG_CONNECTOR_BITS);
1034 mediastat &= ~(XL_MEDIASTAT_LINKBEAT|
1035 XL_MEDIASTAT_JABGUARD|
1036 XL_MEDIASTAT_SQEENB);
1040 if ((media & IFM_GMASK) == IFM_FDX ||
1041 IFM_SUBTYPE(media) == IFM_100_FX) {
1042 printf("full duplex\n");
1044 CSR_WRITE_1(sc, XL_W3_MAC_CTRL, XL_MACCTRL_DUPLEX);
1046 printf("half duplex\n");
1048 CSR_WRITE_1(sc, XL_W3_MAC_CTRL,
1049 (CSR_READ_1(sc, XL_W3_MAC_CTRL) & ~XL_MACCTRL_DUPLEX));
1052 if (IFM_SUBTYPE(media) == IFM_10_2)
1053 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_START);
1055 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_STOP);
1056 CSR_WRITE_4(sc, XL_W3_INTERNAL_CFG, icfg);
1058 CSR_WRITE_2(sc, XL_W4_MEDIA_STATUS, mediastat);
1065 struct xl_softc *sc;
1070 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RESET |
1071 ((sc->xl_flags & XL_FLAG_WEIRDRESET) ?
1072 XL_RESETOPT_DISADVFD:0));
1075 * If we're using memory mapped register mode, pause briefly
1076 * after issuing the reset command before trying to access any
1077 * other registers. With my 3c575C cardbus card, failing to do
1078 * this results in the system locking up while trying to poll
1079 * the command busy bit in the status register.
1081 if (sc->xl_flags & XL_FLAG_USE_MMIO)
1084 for (i = 0; i < XL_TIMEOUT; i++) {
1086 if (!(CSR_READ_2(sc, XL_STATUS) & XL_STAT_CMDBUSY))
1090 if (i == XL_TIMEOUT)
1091 if_printf(&sc->arpcom.ac_if, "reset didn't complete\n");
1093 /* Reset TX and RX. */
1094 /* Note: the RX reset takes an absurd amount of time
1095 * on newer versions of the Tornado chips such as those
1096 * on the 3c905CX and newer 3c908C cards. We wait an
1097 * extra amount of time so that xl_wait() doesn't complain
1098 * and annoy the users.
1100 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_RESET);
1103 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
1106 if (sc->xl_flags & XL_FLAG_INVERT_LED_PWR ||
1107 sc->xl_flags & XL_FLAG_INVERT_MII_PWR) {
1109 CSR_WRITE_2(sc, XL_W2_RESET_OPTIONS, CSR_READ_2(sc,
1110 XL_W2_RESET_OPTIONS)
1111 | ((sc->xl_flags & XL_FLAG_INVERT_LED_PWR)?XL_RESETOPT_INVERT_LED:0)
1112 | ((sc->xl_flags & XL_FLAG_INVERT_MII_PWR)?XL_RESETOPT_INVERT_MII:0)
1116 /* Wait a little while for the chip to get its brains in order. */
1122 * Probe for a 3Com Etherlink XL chip. Check the PCI vendor and device
1123 * IDs against our list and return a device name if we find a match.
1133 while(t->xl_name != NULL) {
1134 if ((pci_get_vendor(dev) == t->xl_vid) &&
1135 (pci_get_device(dev) == t->xl_did)) {
1136 device_set_desc(dev, t->xl_name);
1146 * This routine is a kludge to work around possible hardware faults
1147 * or manufacturing defects that can cause the media options register
1148 * (or reset options register, as it's called for the first generation
1149 * 3c90x adapters) to return an incorrect result. I have encountered
1150 * one Dell Latitude laptop docking station with an integrated 3c905-TX
1151 * which doesn't have any of the 'mediaopt' bits set. This screws up
1152 * the attach routine pretty badly because it doesn't know what media
1153 * to look for. If we find ourselves in this predicament, this routine
1154 * will try to guess the media options values and warn the user of a
1155 * possible manufacturing defect with his adapter/system/whatever.
1159 struct xl_softc *sc;
1161 struct ifnet *ifp = &sc->arpcom.ac_if;
1164 * If some of the media options bits are set, assume they are
1165 * correct. If not, try to figure it out down below.
1166 * XXX I should check for 10baseFL, but I don't have an adapter
1169 if (sc->xl_media & (XL_MEDIAOPT_MASK & ~XL_MEDIAOPT_VCO)) {
1171 * Check the XCVR value. If it's not in the normal range
1172 * of values, we need to fake it up here.
1174 if (sc->xl_xcvr <= XL_XCVR_AUTO)
1177 if_printf(ifp, "bogus xcvr value in EEPROM (%x)\n",
1180 "choosing new default based on card type\n");
1183 if (sc->xl_type == XL_TYPE_905B &&
1184 sc->xl_media & XL_MEDIAOPT_10FL)
1186 if_printf(ifp, "WARNING: no media options bits set in "
1187 "the media options register!!\n");
1188 if_printf(ifp, "this could be a manufacturing defect in "
1189 "your adapter or system\n");
1190 if_printf(ifp, "attempting to guess media type; you "
1191 "should probably consult your vendor\n");
1194 xl_choose_xcvr(sc, 1);
1198 xl_choose_xcvr(sc, verbose)
1199 struct xl_softc *sc;
1202 struct ifnet *ifp = &sc->arpcom.ac_if;
1206 * Read the device ID from the EEPROM.
1207 * This is what's loaded into the PCI device ID register, so it has
1208 * to be correct otherwise we wouldn't have gotten this far.
1210 xl_read_eeprom(sc, (caddr_t)&devid, XL_EE_PRODID, 1, 0);
1213 case TC_DEVICEID_BOOMERANG_10BT: /* 3c900-TPO */
1214 case TC_DEVICEID_KRAKATOA_10BT: /* 3c900B-TPO */
1215 sc->xl_media = XL_MEDIAOPT_BT;
1216 sc->xl_xcvr = XL_XCVR_10BT;
1218 if_printf(ifp, "guessing 10BaseT transceiver\n");
1220 case TC_DEVICEID_BOOMERANG_10BT_COMBO: /* 3c900-COMBO */
1221 case TC_DEVICEID_KRAKATOA_10BT_COMBO: /* 3c900B-COMBO */
1222 sc->xl_media = XL_MEDIAOPT_BT|XL_MEDIAOPT_BNC|XL_MEDIAOPT_AUI;
1223 sc->xl_xcvr = XL_XCVR_10BT;
1225 if_printf(ifp, "guessing COMBO (AUI/BNC/TP)\n");
1227 case TC_DEVICEID_KRAKATOA_10BT_TPC: /* 3c900B-TPC */
1228 sc->xl_media = XL_MEDIAOPT_BT|XL_MEDIAOPT_BNC;
1229 sc->xl_xcvr = XL_XCVR_10BT;
1231 if_printf(ifp, "guessing TPC (BNC/TP)\n");
1233 case TC_DEVICEID_CYCLONE_10FL: /* 3c900B-FL */
1234 sc->xl_media = XL_MEDIAOPT_10FL;
1235 sc->xl_xcvr = XL_XCVR_AUI;
1237 if_printf(ifp, "guessing 10baseFL\n");
1239 case TC_DEVICEID_BOOMERANG_10_100BT: /* 3c905-TX */
1240 case TC_DEVICEID_HURRICANE_555: /* 3c555 */
1241 case TC_DEVICEID_HURRICANE_556: /* 3c556 */
1242 case TC_DEVICEID_HURRICANE_556B: /* 3c556B */
1243 case TC_DEVICEID_HURRICANE_575A: /* 3c575TX */
1244 case TC_DEVICEID_HURRICANE_575B: /* 3c575B */
1245 case TC_DEVICEID_HURRICANE_575C: /* 3c575C */
1246 case TC_DEVICEID_HURRICANE_656: /* 3c656 */
1247 case TC_DEVICEID_HURRICANE_656B: /* 3c656B */
1248 case TC_DEVICEID_TORNADO_656C: /* 3c656C */
1249 case TC_DEVICEID_TORNADO_10_100BT_920B: /* 3c920B-EMB */
1250 sc->xl_media = XL_MEDIAOPT_MII;
1251 sc->xl_xcvr = XL_XCVR_MII;
1253 if_printf(ifp, "guessing MII\n");
1255 case TC_DEVICEID_BOOMERANG_100BT4: /* 3c905-T4 */
1256 case TC_DEVICEID_CYCLONE_10_100BT4: /* 3c905B-T4 */
1257 sc->xl_media = XL_MEDIAOPT_BT4;
1258 sc->xl_xcvr = XL_XCVR_MII;
1260 if_printf(ifp, "guessing 100BaseT4/MII\n");
1262 case TC_DEVICEID_HURRICANE_10_100BT: /* 3c905B-TX */
1263 case TC_DEVICEID_HURRICANE_10_100BT_SERV:/*3c980-TX */
1264 case TC_DEVICEID_TORNADO_10_100BT_SERV: /* 3c980C-TX */
1265 case TC_DEVICEID_HURRICANE_SOHO100TX: /* 3cSOHO100-TX */
1266 case TC_DEVICEID_TORNADO_10_100BT: /* 3c905C-TX */
1267 case TC_DEVICEID_TORNADO_HOMECONNECT: /* 3c450-TX */
1268 sc->xl_media = XL_MEDIAOPT_BTX;
1269 sc->xl_xcvr = XL_XCVR_AUTO;
1271 if_printf(ifp, "guessing 10/100 internal\n");
1273 case TC_DEVICEID_CYCLONE_10_100_COMBO: /* 3c905B-COMBO */
1274 sc->xl_media = XL_MEDIAOPT_BTX|XL_MEDIAOPT_BNC|XL_MEDIAOPT_AUI;
1275 sc->xl_xcvr = XL_XCVR_AUTO;
1277 if_printf(ifp, "guessing 10/100 plus BNC/AUI\n");
1281 "unknown device ID: %x -- defaulting to 10baseT\n", devid);
1282 sc->xl_media = XL_MEDIAOPT_BT;
1290 * Attach the interface. Allocate softc structures, do ifmedia
1291 * setup and ethernet/BPF attach.
1297 u_char eaddr[ETHER_ADDR_LEN];
1299 struct xl_softc *sc;
1301 int media = IFM_ETHER|IFM_100_TX|IFM_FDX;
1302 int unit, error = 0, rid, res;
1304 sc = device_get_softc(dev);
1305 unit = device_get_unit(dev);
1307 ifmedia_init(&sc->ifmedia, 0, xl_ifmedia_upd, xl_ifmedia_sts);
1310 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_555)
1311 sc->xl_flags |= XL_FLAG_EEPROM_OFFSET_30 | XL_FLAG_PHYOK;
1312 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_556 ||
1313 pci_get_device(dev) == TC_DEVICEID_HURRICANE_556B)
1314 sc->xl_flags |= XL_FLAG_FUNCREG | XL_FLAG_PHYOK |
1315 XL_FLAG_EEPROM_OFFSET_30 | XL_FLAG_WEIRDRESET |
1316 XL_FLAG_INVERT_LED_PWR | XL_FLAG_INVERT_MII_PWR;
1317 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_555 ||
1318 pci_get_device(dev) == TC_DEVICEID_HURRICANE_556)
1319 sc->xl_flags |= XL_FLAG_8BITROM;
1320 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_556B)
1321 sc->xl_flags |= XL_FLAG_NO_XCVR_PWR;
1323 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_575A ||
1324 pci_get_device(dev) == TC_DEVICEID_HURRICANE_575B ||
1325 pci_get_device(dev) == TC_DEVICEID_HURRICANE_575C ||
1326 pci_get_device(dev) == TC_DEVICEID_HURRICANE_656B ||
1327 pci_get_device(dev) == TC_DEVICEID_TORNADO_656C)
1328 sc->xl_flags |= XL_FLAG_FUNCREG | XL_FLAG_PHYOK |
1329 XL_FLAG_EEPROM_OFFSET_30 | XL_FLAG_8BITROM;
1330 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_656)
1331 sc->xl_flags |= XL_FLAG_FUNCREG | XL_FLAG_PHYOK;
1332 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_575B)
1333 sc->xl_flags |= XL_FLAG_INVERT_LED_PWR;
1334 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_575C)
1335 sc->xl_flags |= XL_FLAG_INVERT_MII_PWR;
1336 if (pci_get_device(dev) == TC_DEVICEID_TORNADO_656C)
1337 sc->xl_flags |= XL_FLAG_INVERT_MII_PWR;
1338 if (pci_get_device(dev) == TC_DEVICEID_HURRICANE_656 ||
1339 pci_get_device(dev) == TC_DEVICEID_HURRICANE_656B)
1340 sc->xl_flags |= XL_FLAG_INVERT_MII_PWR |
1341 XL_FLAG_INVERT_LED_PWR;
1342 if (pci_get_device(dev) == TC_DEVICEID_TORNADO_10_100BT_920B)
1343 sc->xl_flags |= XL_FLAG_PHYOK;
1344 #ifndef BURN_BRIDGES
1346 * If this is a 3c905B, we have to check one extra thing.
1347 * The 905B supports power management and may be placed in
1348 * a low-power mode (D3 mode), typically by certain operating
1349 * systems which shall not be named. The PCI BIOS is supposed
1350 * to reset the NIC and bring it out of low-power mode, but
1351 * some do not. Consequently, we have to see if this chip
1352 * supports power management, and if so, make sure it's not
1353 * in low-power mode. If power management is available, the
1354 * capid byte will be 0x01.
1356 * I _think_ that what actually happens is that the chip
1357 * loses its PCI configuration during the transition from
1358 * D3 back to D0; this means that it should be possible for
1359 * us to save the PCI iobase, membase and IRQ, put the chip
1360 * back in the D0 state, then restore the PCI config ourselves.
1363 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
1364 u_int32_t iobase, membase, irq;
1366 /* Save important PCI config data. */
1367 iobase = pci_read_config(dev, XL_PCI_LOIO, 4);
1368 membase = pci_read_config(dev, XL_PCI_LOMEM, 4);
1369 irq = pci_read_config(dev, XL_PCI_INTLINE, 4);
1371 /* Reset the power state. */
1372 device_printf(dev, "chip is in D%d power mode "
1373 "-- setting to D0\n", pci_get_powerstate(dev));
1375 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
1377 /* Restore PCI config data. */
1378 pci_write_config(dev, XL_PCI_LOIO, iobase, 4);
1379 pci_write_config(dev, XL_PCI_LOMEM, membase, 4);
1380 pci_write_config(dev, XL_PCI_INTLINE, irq, 4);
1384 * Map control/status registers.
1386 pci_enable_busmaster(dev);
1389 res = SYS_RES_MEMORY;
1392 sc->xl_res = bus_alloc_resource_any(dev, res, &rid, RF_ACTIVE);
1395 if (sc->xl_res != NULL) {
1396 sc->xl_flags |= XL_FLAG_USE_MMIO;
1398 device_printf(dev, "using memory mapped I/O\n");
1401 res = SYS_RES_IOPORT;
1402 sc->xl_res = bus_alloc_resource_any(dev, res, &rid, RF_ACTIVE);
1403 if (sc->xl_res == NULL) {
1404 device_printf(dev, "couldn't map ports/memory\n");
1409 device_printf(dev, "using port I/O\n");
1412 sc->xl_btag = rman_get_bustag(sc->xl_res);
1413 sc->xl_bhandle = rman_get_bushandle(sc->xl_res);
1415 if (sc->xl_flags & XL_FLAG_FUNCREG) {
1416 rid = XL_PCI_FUNCMEM;
1417 sc->xl_fres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1420 if (sc->xl_fres == NULL) {
1421 device_printf(dev, "couldn't map ports/memory\n");
1426 sc->xl_ftag = rman_get_bustag(sc->xl_fres);
1427 sc->xl_fhandle = rman_get_bushandle(sc->xl_fres);
1430 /* Allocate interrupt */
1432 sc->xl_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
1433 RF_SHAREABLE | RF_ACTIVE);
1434 if (sc->xl_irq == NULL) {
1435 device_printf(dev, "couldn't map interrupt\n");
1440 sc->xl_flags |= XL_FLAG_ATTACH_MAPPED;
1442 ifp = &sc->arpcom.ac_if;
1443 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
1445 /* Reset the adapter. */
1449 * Get station address from the EEPROM.
1451 if (xl_read_eeprom(sc, (caddr_t)&eaddr, XL_EE_OEM_ADR0, 3, 1)) {
1452 device_printf(dev, "failed to read station address\n");
1457 callout_init(&sc->xl_stat_timer);
1460 * Now allocate a tag for the DMA descriptor lists and a chunk
1461 * of DMA-able memory based on the tag. Also obtain the DMA
1462 * addresses of the RX and TX ring, which we'll need later.
1463 * All of our lists are allocated as a contiguous block
1466 error = bus_dma_tag_create(NULL, 8, 0,
1467 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1468 XL_RX_LIST_SZ, 1, XL_RX_LIST_SZ, 0,
1469 &sc->xl_ldata.xl_rx_tag);
1471 device_printf(dev, "failed to allocate rx dma tag\n");
1475 error = bus_dmamem_alloc(sc->xl_ldata.xl_rx_tag,
1476 (void **)&sc->xl_ldata.xl_rx_list, BUS_DMA_NOWAIT,
1477 &sc->xl_ldata.xl_rx_dmamap);
1479 device_printf(dev, "no memory for rx list buffers!\n");
1480 bus_dma_tag_destroy(sc->xl_ldata.xl_rx_tag);
1481 sc->xl_ldata.xl_rx_tag = NULL;
1485 error = bus_dmamap_load(sc->xl_ldata.xl_rx_tag,
1486 sc->xl_ldata.xl_rx_dmamap, sc->xl_ldata.xl_rx_list,
1487 XL_RX_LIST_SZ, xl_dma_map_addr,
1488 &sc->xl_ldata.xl_rx_dmaaddr, BUS_DMA_NOWAIT);
1490 device_printf(dev, "cannot get dma address of the rx ring!\n");
1491 bus_dmamem_free(sc->xl_ldata.xl_rx_tag, sc->xl_ldata.xl_rx_list,
1492 sc->xl_ldata.xl_rx_dmamap);
1493 bus_dma_tag_destroy(sc->xl_ldata.xl_rx_tag);
1494 sc->xl_ldata.xl_rx_tag = NULL;
1498 error = bus_dma_tag_create(NULL, 8, 0,
1499 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1500 XL_TX_LIST_SZ, 1, XL_TX_LIST_SZ, 0,
1501 &sc->xl_ldata.xl_tx_tag);
1503 device_printf(dev, "failed to allocate tx dma tag\n");
1507 error = bus_dmamem_alloc(sc->xl_ldata.xl_tx_tag,
1508 (void **)&sc->xl_ldata.xl_tx_list, BUS_DMA_NOWAIT,
1509 &sc->xl_ldata.xl_tx_dmamap);
1511 device_printf(dev, "no memory for list buffers!\n");
1512 bus_dma_tag_destroy(sc->xl_ldata.xl_tx_tag);
1513 sc->xl_ldata.xl_tx_tag = NULL;
1517 error = bus_dmamap_load(sc->xl_ldata.xl_tx_tag,
1518 sc->xl_ldata.xl_tx_dmamap, sc->xl_ldata.xl_tx_list,
1519 XL_TX_LIST_SZ, xl_dma_map_addr,
1520 &sc->xl_ldata.xl_tx_dmaaddr, BUS_DMA_NOWAIT);
1522 device_printf(dev, "cannot get dma address of the tx ring!\n");
1523 bus_dmamem_free(sc->xl_ldata.xl_tx_tag, sc->xl_ldata.xl_tx_list,
1524 sc->xl_ldata.xl_tx_dmamap);
1525 bus_dma_tag_destroy(sc->xl_ldata.xl_tx_tag);
1526 sc->xl_ldata.xl_tx_tag = NULL;
1531 * Allocate a DMA tag for the mapping of mbufs.
1533 error = bus_dma_tag_create(NULL, 1, 0,
1534 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1535 MCLBYTES * XL_MAXFRAGS, XL_MAXFRAGS, MCLBYTES, 0,
1538 device_printf(dev, "failed to allocate mbuf dma tag\n");
1542 bzero(sc->xl_ldata.xl_tx_list, XL_TX_LIST_SZ);
1543 bzero(sc->xl_ldata.xl_rx_list, XL_RX_LIST_SZ);
1545 /* We need a spare DMA map for the RX ring. */
1546 error = bus_dmamap_create(sc->xl_mtag, 0, &sc->xl_tmpmap);
1551 * Figure out the card type. 3c905B adapters have the
1552 * 'supportsNoTxLength' bit set in the capabilities
1553 * word in the EEPROM.
1554 * Note: my 3c575C cardbus card lies. It returns a value
1555 * of 0x1578 for its capabilities word, which is somewhat
1556 * nonsensical. Another way to distinguish a 3c90x chip
1557 * from a 3c90xB/C chip is to check for the 'supportsLargePackets'
1558 * bit. This will only be set for 3c90x boomerage chips.
1560 xl_read_eeprom(sc, (caddr_t)&sc->xl_caps, XL_EE_CAPS, 1, 0);
1561 if (sc->xl_caps & XL_CAPS_NO_TXLENGTH ||
1562 !(sc->xl_caps & XL_CAPS_LARGE_PKTS))
1563 sc->xl_type = XL_TYPE_905B;
1565 sc->xl_type = XL_TYPE_90X;
1568 ifp->if_mtu = ETHERMTU;
1569 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
1570 ifp->if_ioctl = xl_ioctl;
1571 ifp->if_capabilities = 0;
1572 if (sc->xl_type == XL_TYPE_905B) {
1573 ifp->if_start = xl_start_90xB;
1574 ifp->if_capabilities |= IFCAP_HWCSUM;
1576 ifp->if_start = xl_start;
1578 ifp->if_watchdog = xl_watchdog;
1579 ifp->if_init = xl_init;
1580 ifp->if_baudrate = 10000000;
1581 ifq_set_maxlen(&ifp->if_snd, XL_TX_LIST_CNT - 1);
1582 ifq_set_ready(&ifp->if_snd);
1584 * NOTE: features disabled by default. This seems to corrupt
1585 * tx packet data one out of a million packets or so and then
1586 * generates a good checksum so the receiver doesn't
1587 * know the packet is bad
1589 ifp->if_capenable = 0; /*ifp->if_capabilities;*/
1590 if (ifp->if_capenable & IFCAP_TXCSUM)
1591 ifp->if_hwassist = XL905B_CSUM_FEATURES;
1594 * Now we have to see what sort of media we have.
1595 * This includes probing for an MII interace and a
1599 sc->xl_media = CSR_READ_2(sc, XL_W3_MEDIA_OPT);
1601 if_printf(ifp, "media options word: %x\n", sc->xl_media);
1603 xl_read_eeprom(sc, (char *)&xcvr, XL_EE_ICFG_0, 2, 0);
1604 sc->xl_xcvr = xcvr[0] | xcvr[1] << 16;
1605 sc->xl_xcvr &= XL_ICFG_CONNECTOR_MASK;
1606 sc->xl_xcvr >>= XL_ICFG_CONNECTOR_BITS;
1610 if (sc->xl_media & XL_MEDIAOPT_MII || sc->xl_media & XL_MEDIAOPT_BTX
1611 || sc->xl_media & XL_MEDIAOPT_BT4) {
1613 if_printf(ifp, "found MII/AUTO\n");
1615 if (mii_phy_probe(dev, &sc->xl_miibus,
1616 xl_ifmedia_upd, xl_ifmedia_sts)) {
1617 if_printf(ifp, "no PHY found!\n");
1626 * Sanity check. If the user has selected "auto" and this isn't
1627 * a 10/100 card of some kind, we need to force the transceiver
1628 * type to something sane.
1630 if (sc->xl_xcvr == XL_XCVR_AUTO)
1631 xl_choose_xcvr(sc, bootverbose);
1636 if (sc->xl_media & XL_MEDIAOPT_BT) {
1638 if_printf(ifp, "found 10baseT\n");
1639 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
1640 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
1641 if (sc->xl_caps & XL_CAPS_FULL_DUPLEX)
1642 ifmedia_add(&sc->ifmedia,
1643 IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
1646 if (sc->xl_media & (XL_MEDIAOPT_AUI|XL_MEDIAOPT_10FL)) {
1648 * Check for a 10baseFL board in disguise.
1650 if (sc->xl_type == XL_TYPE_905B &&
1651 sc->xl_media == XL_MEDIAOPT_10FL) {
1653 if_printf(ifp, "found 10baseFL\n");
1654 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_FL, 0, NULL);
1655 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_FL|IFM_HDX,
1657 if (sc->xl_caps & XL_CAPS_FULL_DUPLEX)
1658 ifmedia_add(&sc->ifmedia,
1659 IFM_ETHER|IFM_10_FL|IFM_FDX, 0, NULL);
1662 if_printf(ifp, "found AUI\n");
1663 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_5, 0, NULL);
1667 if (sc->xl_media & XL_MEDIAOPT_BNC) {
1669 if_printf(ifp, "found BNC\n");
1670 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_2, 0, NULL);
1673 if (sc->xl_media & XL_MEDIAOPT_BFX) {
1675 if_printf(ifp, "found 100baseFX\n");
1676 ifp->if_baudrate = 100000000;
1677 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_FX, 0, NULL);
1680 /* Choose a default media. */
1681 switch(sc->xl_xcvr) {
1683 media = IFM_ETHER|IFM_10_T;
1684 xl_setmode(sc, media);
1687 if (sc->xl_type == XL_TYPE_905B &&
1688 sc->xl_media == XL_MEDIAOPT_10FL) {
1689 media = IFM_ETHER|IFM_10_FL;
1690 xl_setmode(sc, media);
1692 media = IFM_ETHER|IFM_10_5;
1693 xl_setmode(sc, media);
1697 media = IFM_ETHER|IFM_10_2;
1698 xl_setmode(sc, media);
1701 case XL_XCVR_100BTX:
1703 /* Chosen by miibus */
1705 case XL_XCVR_100BFX:
1706 media = IFM_ETHER|IFM_100_FX;
1709 if_printf(ifp, "unknown XCVR type: %d\n", sc->xl_xcvr);
1711 * This will probably be wrong, but it prevents
1712 * the ifmedia code from panicking.
1714 media = IFM_ETHER|IFM_10_T;
1718 if (sc->xl_miibus == NULL)
1719 ifmedia_set(&sc->ifmedia, media);
1723 if (sc->xl_flags & XL_FLAG_NO_XCVR_PWR) {
1725 CSR_WRITE_2(sc, XL_W0_MFG_ID, XL_NO_XCVR_PWR_MAGICBITS);
1729 * Call MI attach routine.
1731 ether_ifattach(ifp, eaddr);
1734 * Tell the upper layer(s) we support long frames.
1736 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
1738 /* Hook interrupt last to avoid having to lock softc */
1739 error = bus_setup_intr(dev, sc->xl_irq, INTR_TYPE_NET,
1740 xl_intr, sc, &sc->xl_intrhand, NULL);
1742 if_printf(ifp, "couldn't set up irq\n");
1743 ether_ifdetach(ifp);
1755 * Shutdown hardware and free up resources. This can be called any
1756 * time after the mutex has been initialized. It is called in both
1757 * the error case in attach and the normal detach case so it needs
1758 * to be careful about only freeing resources that have actually been
1765 struct xl_softc *sc;
1769 sc = device_get_softc(dev);
1770 ifp = &sc->arpcom.ac_if;
1772 if (sc->xl_flags & XL_FLAG_USE_MMIO) {
1774 res = SYS_RES_MEMORY;
1777 res = SYS_RES_IOPORT;
1783 * Only try to communicate with the device if we were able to map
1784 * the ports. This flag is set before ether_ifattach() so it also
1785 * governs our call to ether_ifdetach().
1787 if (sc->xl_flags & XL_FLAG_ATTACH_MAPPED) {
1790 ether_ifdetach(ifp);
1794 device_delete_child(dev, sc->xl_miibus);
1795 bus_generic_detach(dev);
1796 ifmedia_removeall(&sc->ifmedia);
1798 if (sc->xl_intrhand)
1799 bus_teardown_intr(dev, sc->xl_irq, sc->xl_intrhand);
1804 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->xl_irq);
1805 if (sc->xl_fres != NULL)
1806 bus_release_resource(dev, SYS_RES_MEMORY,
1807 XL_PCI_FUNCMEM, sc->xl_fres);
1809 bus_release_resource(dev, res, rid, sc->xl_res);
1812 bus_dmamap_destroy(sc->xl_mtag, sc->xl_tmpmap);
1813 bus_dma_tag_destroy(sc->xl_mtag);
1815 if (sc->xl_ldata.xl_rx_tag) {
1816 bus_dmamap_unload(sc->xl_ldata.xl_rx_tag,
1817 sc->xl_ldata.xl_rx_dmamap);
1818 bus_dmamem_free(sc->xl_ldata.xl_rx_tag, sc->xl_ldata.xl_rx_list,
1819 sc->xl_ldata.xl_rx_dmamap);
1820 bus_dma_tag_destroy(sc->xl_ldata.xl_rx_tag);
1822 if (sc->xl_ldata.xl_tx_tag) {
1823 bus_dmamap_unload(sc->xl_ldata.xl_tx_tag,
1824 sc->xl_ldata.xl_tx_dmamap);
1825 bus_dmamem_free(sc->xl_ldata.xl_tx_tag, sc->xl_ldata.xl_tx_list,
1826 sc->xl_ldata.xl_tx_dmamap);
1827 bus_dma_tag_destroy(sc->xl_ldata.xl_tx_tag);
1834 * Initialize the transmit descriptors.
1838 struct xl_softc *sc;
1840 struct xl_chain_data *cd;
1841 struct xl_list_data *ld;
1846 for (i = 0; i < XL_TX_LIST_CNT; i++) {
1847 cd->xl_tx_chain[i].xl_ptr = &ld->xl_tx_list[i];
1848 error = bus_dmamap_create(sc->xl_mtag, 0,
1849 &cd->xl_tx_chain[i].xl_map);
1852 cd->xl_tx_chain[i].xl_phys = ld->xl_tx_dmaaddr +
1853 i * sizeof(struct xl_list);
1854 if (i == (XL_TX_LIST_CNT - 1))
1855 cd->xl_tx_chain[i].xl_next = NULL;
1857 cd->xl_tx_chain[i].xl_next = &cd->xl_tx_chain[i + 1];
1860 cd->xl_tx_free = &cd->xl_tx_chain[0];
1861 cd->xl_tx_tail = cd->xl_tx_head = NULL;
1863 bus_dmamap_sync(ld->xl_tx_tag, ld->xl_tx_dmamap, BUS_DMASYNC_PREWRITE);
1868 * Initialize the transmit descriptors.
1871 xl_list_tx_init_90xB(sc)
1872 struct xl_softc *sc;
1874 struct xl_chain_data *cd;
1875 struct xl_list_data *ld;
1880 for (i = 0; i < XL_TX_LIST_CNT; i++) {
1881 cd->xl_tx_chain[i].xl_ptr = &ld->xl_tx_list[i];
1882 error = bus_dmamap_create(sc->xl_mtag, 0,
1883 &cd->xl_tx_chain[i].xl_map);
1886 cd->xl_tx_chain[i].xl_phys = ld->xl_tx_dmaaddr +
1887 i * sizeof(struct xl_list);
1888 if (i == (XL_TX_LIST_CNT - 1))
1889 cd->xl_tx_chain[i].xl_next = &cd->xl_tx_chain[0];
1891 cd->xl_tx_chain[i].xl_next = &cd->xl_tx_chain[i + 1];
1893 cd->xl_tx_chain[i].xl_prev =
1894 &cd->xl_tx_chain[XL_TX_LIST_CNT - 1];
1896 cd->xl_tx_chain[i].xl_prev =
1897 &cd->xl_tx_chain[i - 1];
1900 bzero(ld->xl_tx_list, XL_TX_LIST_SZ);
1901 ld->xl_tx_list[0].xl_status = htole32(XL_TXSTAT_EMPTY);
1907 bus_dmamap_sync(ld->xl_tx_tag, ld->xl_tx_dmamap, BUS_DMASYNC_PREWRITE);
1912 * Initialize the RX descriptors and allocate mbufs for them. Note that
1913 * we arrange the descriptors in a closed ring, so that the last descriptor
1914 * points back to the first.
1918 struct xl_softc *sc;
1920 struct xl_chain_data *cd;
1921 struct xl_list_data *ld;
1928 for (i = 0; i < XL_RX_LIST_CNT; i++) {
1929 cd->xl_rx_chain[i].xl_ptr = &ld->xl_rx_list[i];
1930 error = bus_dmamap_create(sc->xl_mtag, 0,
1931 &cd->xl_rx_chain[i].xl_map);
1934 error = xl_newbuf(sc, &cd->xl_rx_chain[i]);
1937 if (i == (XL_RX_LIST_CNT - 1))
1941 nextptr = ld->xl_rx_dmaaddr +
1942 next * sizeof(struct xl_list_onefrag);
1943 cd->xl_rx_chain[i].xl_next = &cd->xl_rx_chain[next];
1944 ld->xl_rx_list[i].xl_next = htole32(nextptr);
1947 bus_dmamap_sync(ld->xl_rx_tag, ld->xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
1948 cd->xl_rx_head = &cd->xl_rx_chain[0];
1954 * Initialize an RX descriptor and attach an MBUF cluster.
1955 * If we fail to do so, we need to leave the old mbuf and
1956 * the old DMA map untouched so that it can be reused.
1960 struct xl_softc *sc;
1961 struct xl_chain_onefrag *c;
1963 struct mbuf *m_new = NULL;
1968 m_new = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1972 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1974 /* Force longword alignment for packet payload. */
1975 m_adj(m_new, ETHER_ALIGN);
1977 error = bus_dmamap_load_mbuf(sc->xl_mtag, sc->xl_tmpmap, m_new,
1978 xl_dma_map_rxbuf, &baddr, BUS_DMA_NOWAIT);
1981 if_printf(&sc->arpcom.ac_if, "can't map mbuf (error %d)\n",
1986 bus_dmamap_unload(sc->xl_mtag, c->xl_map);
1988 c->xl_map = sc->xl_tmpmap;
1989 sc->xl_tmpmap = map;
1991 c->xl_ptr->xl_frag.xl_len = htole32(m_new->m_len | XL_LAST_FRAG);
1992 c->xl_ptr->xl_status = 0;
1993 c->xl_ptr->xl_frag.xl_addr = htole32(baddr);
1994 bus_dmamap_sync(sc->xl_mtag, c->xl_map, BUS_DMASYNC_PREREAD);
2000 struct xl_softc *sc;
2002 struct xl_chain_onefrag *pos;
2005 pos = sc->xl_cdata.xl_rx_head;
2007 for (i = 0; i < XL_RX_LIST_CNT; i++) {
2008 if (pos->xl_ptr->xl_status)
2013 if (i == XL_RX_LIST_CNT)
2016 sc->xl_cdata.xl_rx_head = pos;
2022 * A frame has been uploaded: pass the resulting mbuf chain up to
2023 * the higher level protocols.
2027 struct xl_softc *sc;
2031 struct xl_chain_onefrag *cur_rx;
2035 ifp = &sc->arpcom.ac_if;
2039 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag, sc->xl_ldata.xl_rx_dmamap,
2040 BUS_DMASYNC_POSTREAD);
2041 while((rxstat = le32toh(sc->xl_cdata.xl_rx_head->xl_ptr->xl_status))) {
2042 cur_rx = sc->xl_cdata.xl_rx_head;
2043 sc->xl_cdata.xl_rx_head = cur_rx->xl_next;
2044 total_len = rxstat & XL_RXSTAT_LENMASK;
2047 * Since we have told the chip to allow large frames,
2048 * we need to trap giant frame errors in software. We allow
2049 * a little more than the normal frame size to account for
2050 * frames with VLAN tags.
2052 if (total_len > XL_MAX_FRAMELEN)
2053 rxstat |= (XL_RXSTAT_UP_ERROR|XL_RXSTAT_OVERSIZE);
2056 * If an error occurs, update stats, clear the
2057 * status word and leave the mbuf cluster in place:
2058 * it should simply get re-used next time this descriptor
2059 * comes up in the ring.
2061 if (rxstat & XL_RXSTAT_UP_ERROR) {
2063 cur_rx->xl_ptr->xl_status = 0;
2064 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
2065 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
2070 * If the error bit was not set, the upload complete
2071 * bit should be set which means we have a valid packet.
2072 * If not, something truly strange has happened.
2074 if (!(rxstat & XL_RXSTAT_UP_CMPLT)) {
2076 "bad receive status -- packet dropped\n");
2078 cur_rx->xl_ptr->xl_status = 0;
2079 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
2080 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
2084 /* No errors; receive the packet. */
2085 bus_dmamap_sync(sc->xl_mtag, cur_rx->xl_map,
2086 BUS_DMASYNC_POSTREAD);
2087 m = cur_rx->xl_mbuf;
2090 * Try to conjure up a new mbuf cluster. If that
2091 * fails, it means we have an out of memory condition and
2092 * should leave the buffer in place and continue. This will
2093 * result in a lost packet, but there's little else we
2094 * can do in this situation.
2096 if (xl_newbuf(sc, cur_rx)) {
2098 cur_rx->xl_ptr->xl_status = 0;
2099 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
2100 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
2103 bus_dmamap_sync(sc->xl_ldata.xl_rx_tag,
2104 sc->xl_ldata.xl_rx_dmamap, BUS_DMASYNC_PREWRITE);
2107 m->m_pkthdr.rcvif = ifp;
2108 m->m_pkthdr.len = m->m_len = total_len;
2110 if (ifp->if_capenable & IFCAP_RXCSUM) {
2111 /* Do IP checksum checking. */
2112 if (rxstat & XL_RXSTAT_IPCKOK)
2113 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2114 if (!(rxstat & XL_RXSTAT_IPCKERR))
2115 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2116 if ((rxstat & XL_RXSTAT_TCPCOK &&
2117 !(rxstat & XL_RXSTAT_TCPCKERR)) ||
2118 (rxstat & XL_RXSTAT_UDPCKOK &&
2119 !(rxstat & XL_RXSTAT_UDPCKERR))) {
2120 m->m_pkthdr.csum_flags |=
2121 CSUM_DATA_VALID|CSUM_PSEUDO_HDR;
2122 m->m_pkthdr.csum_data = 0xffff;
2126 (*ifp->if_input)(ifp, m);
2130 * Handle the 'end of channel' condition. When the upload
2131 * engine hits the end of the RX ring, it will stall. This
2132 * is our cue to flush the RX ring, reload the uplist pointer
2133 * register and unstall the engine.
2134 * XXX This is actually a little goofy. With the ThunderLAN
2135 * chip, you get an interrupt when the receiver hits the end
2136 * of the receive ring, which tells you exactly when you
2137 * you need to reload the ring pointer. Here we have to
2138 * fake it. I'm mad at myself for not being clever enough
2139 * to avoid the use of a goto here.
2141 if (CSR_READ_4(sc, XL_UPLIST_PTR) == 0 ||
2142 CSR_READ_4(sc, XL_UPLIST_STATUS) & XL_PKTSTAT_UP_STALLED) {
2143 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_UP_STALL);
2145 CSR_WRITE_4(sc, XL_UPLIST_PTR, sc->xl_ldata.xl_rx_dmaaddr);
2146 sc->xl_cdata.xl_rx_head = &sc->xl_cdata.xl_rx_chain[0];
2147 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_UP_UNSTALL);
2155 * A frame was downloaded to the chip. It's safe for us to clean up
2160 struct xl_softc *sc;
2162 struct xl_chain *cur_tx;
2165 ifp = &sc->arpcom.ac_if;
2167 /* Clear the timeout timer. */
2171 * Go through our tx list and free mbufs for those
2172 * frames that have been uploaded. Note: the 3c905B
2173 * sets a special bit in the status word to let us
2174 * know that a frame has been downloaded, but the
2175 * original 3c900/3c905 adapters don't do that.
2176 * Consequently, we have to use a different test if
2177 * xl_type != XL_TYPE_905B.
2179 while(sc->xl_cdata.xl_tx_head != NULL) {
2180 cur_tx = sc->xl_cdata.xl_tx_head;
2182 if (CSR_READ_4(sc, XL_DOWNLIST_PTR))
2185 sc->xl_cdata.xl_tx_head = cur_tx->xl_next;
2186 bus_dmamap_sync(sc->xl_mtag, cur_tx->xl_map,
2187 BUS_DMASYNC_POSTWRITE);
2188 bus_dmamap_unload(sc->xl_mtag, cur_tx->xl_map);
2189 m_freem(cur_tx->xl_mbuf);
2190 cur_tx->xl_mbuf = NULL;
2193 cur_tx->xl_next = sc->xl_cdata.xl_tx_free;
2194 sc->xl_cdata.xl_tx_free = cur_tx;
2197 if (sc->xl_cdata.xl_tx_head == NULL) {
2198 ifp->if_flags &= ~IFF_OACTIVE;
2199 sc->xl_cdata.xl_tx_tail = NULL;
2201 if (CSR_READ_4(sc, XL_DMACTL) & XL_DMACTL_DOWN_STALLED ||
2202 !CSR_READ_4(sc, XL_DOWNLIST_PTR)) {
2203 CSR_WRITE_4(sc, XL_DOWNLIST_PTR,
2204 sc->xl_cdata.xl_tx_head->xl_phys);
2205 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2214 struct xl_softc *sc;
2216 struct xl_chain *cur_tx = NULL;
2220 ifp = &sc->arpcom.ac_if;
2222 bus_dmamap_sync(sc->xl_ldata.xl_tx_tag, sc->xl_ldata.xl_tx_dmamap,
2223 BUS_DMASYNC_POSTREAD);
2224 idx = sc->xl_cdata.xl_tx_cons;
2225 while(idx != sc->xl_cdata.xl_tx_prod) {
2227 cur_tx = &sc->xl_cdata.xl_tx_chain[idx];
2229 if (!(le32toh(cur_tx->xl_ptr->xl_status) &
2230 XL_TXSTAT_DL_COMPLETE))
2233 if (cur_tx->xl_mbuf != NULL) {
2234 bus_dmamap_sync(sc->xl_mtag, cur_tx->xl_map,
2235 BUS_DMASYNC_POSTWRITE);
2236 bus_dmamap_unload(sc->xl_mtag, cur_tx->xl_map);
2237 m_freem(cur_tx->xl_mbuf);
2238 cur_tx->xl_mbuf = NULL;
2243 sc->xl_cdata.xl_tx_cnt--;
2244 XL_INC(idx, XL_TX_LIST_CNT);
2248 sc->xl_cdata.xl_tx_cons = idx;
2251 ifp->if_flags &= ~IFF_OACTIVE;
2257 * TX 'end of channel' interrupt handler. Actually, we should
2258 * only get a 'TX complete' interrupt if there's a transmit error,
2259 * so this is really TX error handler.
2263 struct xl_softc *sc;
2265 struct ifnet *ifp = &sc->arpcom.ac_if;
2268 while((txstat = CSR_READ_1(sc, XL_TX_STATUS))) {
2269 if (txstat & XL_TXSTATUS_UNDERRUN ||
2270 txstat & XL_TXSTATUS_JABBER ||
2271 txstat & XL_TXSTATUS_RECLAIM) {
2272 if_printf(ifp, "transmission error: %x\n", txstat);
2273 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
2275 if (sc->xl_type == XL_TYPE_905B) {
2276 if (sc->xl_cdata.xl_tx_cnt) {
2279 i = sc->xl_cdata.xl_tx_cons;
2280 c = &sc->xl_cdata.xl_tx_chain[i];
2281 CSR_WRITE_4(sc, XL_DOWNLIST_PTR,
2283 CSR_WRITE_1(sc, XL_DOWN_POLL, 64);
2286 if (sc->xl_cdata.xl_tx_head != NULL)
2287 CSR_WRITE_4(sc, XL_DOWNLIST_PTR,
2288 sc->xl_cdata.xl_tx_head->xl_phys);
2291 * Remember to set this for the
2292 * first generation 3c90X chips.
2294 CSR_WRITE_1(sc, XL_TX_FREETHRESH, XL_PACKET_SIZE >> 8);
2295 if (txstat & XL_TXSTATUS_UNDERRUN &&
2296 sc->xl_tx_thresh < XL_PACKET_SIZE) {
2297 sc->xl_tx_thresh += XL_MIN_FRAMELEN;
2298 if_printf(ifp, "tx underrun, increasing tx start"
2299 " threshold to %d bytes\n",
2302 CSR_WRITE_2(sc, XL_COMMAND,
2303 XL_CMD_TX_SET_START|sc->xl_tx_thresh);
2304 if (sc->xl_type == XL_TYPE_905B) {
2305 CSR_WRITE_2(sc, XL_COMMAND,
2306 XL_CMD_SET_TX_RECLAIM|(XL_PACKET_SIZE >> 4));
2308 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_ENABLE);
2309 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2311 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_ENABLE);
2312 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2315 * Write an arbitrary byte to the TX_STATUS register
2316 * to clear this interrupt/error and advance to the next.
2318 CSR_WRITE_1(sc, XL_TX_STATUS, 0x01);
2328 struct xl_softc *sc;
2333 ifp = &sc->arpcom.ac_if;
2335 while((status = CSR_READ_2(sc, XL_STATUS)) & XL_INTRS && status != 0xFFFF) {
2337 CSR_WRITE_2(sc, XL_COMMAND,
2338 XL_CMD_INTR_ACK|(status & XL_INTRS));
2340 if (status & XL_STAT_UP_COMPLETE) {
2343 curpkts = ifp->if_ipackets;
2345 if (curpkts == ifp->if_ipackets) {
2346 while (xl_rx_resync(sc))
2351 if (status & XL_STAT_DOWN_COMPLETE) {
2352 if (sc->xl_type == XL_TYPE_905B)
2358 if (status & XL_STAT_TX_COMPLETE) {
2363 if (status & XL_STAT_ADFAIL) {
2368 if (status & XL_STAT_STATSOFLOW) {
2369 sc->xl_stats_no_timeout = 1;
2370 xl_stats_update(sc);
2371 sc->xl_stats_no_timeout = 0;
2375 if (!ifq_is_empty(&ifp->if_snd))
2376 (*ifp->if_start)(ifp);
2382 xl_stats_update(xsc)
2385 struct xl_softc *sc;
2387 struct xl_stats xl_stats;
2390 struct mii_data *mii = NULL;
2392 bzero((char *)&xl_stats, sizeof(struct xl_stats));
2395 ifp = &sc->arpcom.ac_if;
2396 if (sc->xl_miibus != NULL)
2397 mii = device_get_softc(sc->xl_miibus);
2399 p = (u_int8_t *)&xl_stats;
2401 /* Read all the stats registers. */
2404 for (i = 0; i < 16; i++)
2405 *p++ = CSR_READ_1(sc, XL_W6_CARRIER_LOST + i);
2407 ifp->if_ierrors += xl_stats.xl_rx_overrun;
2409 ifp->if_collisions += xl_stats.xl_tx_multi_collision +
2410 xl_stats.xl_tx_single_collision +
2411 xl_stats.xl_tx_late_collision;
2414 * Boomerang and cyclone chips have an extra stats counter
2415 * in window 4 (BadSSD). We have to read this too in order
2416 * to clear out all the stats registers and avoid a statsoflow
2420 CSR_READ_1(sc, XL_W4_BADSSD);
2422 if ((mii != NULL) && (!sc->xl_stats_no_timeout))
2427 if (!sc->xl_stats_no_timeout)
2428 callout_reset(&sc->xl_stat_timer, hz, xl_stats_update, sc);
2434 * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data
2435 * pointers to the fragment pointers.
2438 xl_encap(sc, c, m_head)
2439 struct xl_softc *sc;
2441 struct mbuf *m_head;
2447 ifp = &sc->arpcom.ac_if;
2450 * Start packing the mbufs in this chain into
2451 * the fragment pointers. Stop when we run out
2452 * of fragments or hit the end of the mbuf chain.
2454 error = bus_dmamap_load_mbuf(sc->xl_mtag, c->xl_map, m_head,
2455 xl_dma_map_txbuf, c->xl_ptr, BUS_DMA_NOWAIT);
2457 if (error && error != EFBIG) {
2459 if_printf(ifp, "can't map mbuf (error %d)\n", error);
2464 * Handle special case: we used up all 63 fragments,
2465 * but we have more mbufs left in the chain. Copy the
2466 * data into an mbuf cluster. Note that we don't
2467 * bother clearing the values in the other fragment
2468 * pointers/counters; it wouldn't gain us anything,
2469 * and would waste cycles.
2474 m_new = m_defrag(m_head, MB_DONTWAIT);
2475 if (m_new == NULL) {
2482 error = bus_dmamap_load_mbuf(sc->xl_mtag, c->xl_map,
2483 m_head, xl_dma_map_txbuf, c->xl_ptr, BUS_DMA_NOWAIT);
2486 if_printf(ifp, "can't map mbuf (error %d)\n", error);
2491 if (sc->xl_type == XL_TYPE_905B) {
2492 status = XL_TXSTAT_RND_DEFEAT;
2494 if (m_head->m_pkthdr.csum_flags) {
2495 if (m_head->m_pkthdr.csum_flags & CSUM_IP)
2496 status |= XL_TXSTAT_IPCKSUM;
2497 if (m_head->m_pkthdr.csum_flags & CSUM_TCP)
2498 status |= XL_TXSTAT_TCPCKSUM;
2499 if (m_head->m_pkthdr.csum_flags & CSUM_UDP)
2500 status |= XL_TXSTAT_UDPCKSUM;
2502 c->xl_ptr->xl_status = htole32(status);
2505 c->xl_mbuf = m_head;
2506 bus_dmamap_sync(sc->xl_mtag, c->xl_map, BUS_DMASYNC_PREWRITE);
2511 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
2512 * to the mbuf data regions directly in the transmit lists. We also save a
2513 * copy of the pointers since the transmit list fragment pointers are
2514 * physical addresses.
2520 struct xl_softc *sc;
2521 struct mbuf *m_head = NULL;
2522 struct xl_chain *prev = NULL, *cur_tx = NULL, *start_tx;
2523 struct xl_chain *prev_tx;
2529 * Check for an available queue slot. If there are none,
2532 if (sc->xl_cdata.xl_tx_free == NULL) {
2535 if (sc->xl_cdata.xl_tx_free == NULL) {
2536 ifp->if_flags |= IFF_OACTIVE;
2541 start_tx = sc->xl_cdata.xl_tx_free;
2543 while(sc->xl_cdata.xl_tx_free != NULL) {
2544 m_head = ifq_dequeue(&ifp->if_snd);
2548 /* Pick a descriptor off the free list. */
2550 cur_tx = sc->xl_cdata.xl_tx_free;
2552 /* Pack the data into the descriptor. */
2553 error = xl_encap(sc, cur_tx, m_head);
2559 sc->xl_cdata.xl_tx_free = cur_tx->xl_next;
2560 cur_tx->xl_next = NULL;
2562 /* Chain it together. */
2564 prev->xl_next = cur_tx;
2565 prev->xl_ptr->xl_next = htole32(cur_tx->xl_phys);
2569 BPF_MTAP(ifp, cur_tx->xl_mbuf);
2573 * If there are no packets queued, bail.
2575 if (cur_tx == NULL) {
2580 * Place the request for the upload interrupt
2581 * in the last descriptor in the chain. This way, if
2582 * we're chaining several packets at once, we'll only
2583 * get an interupt once for the whole chain rather than
2584 * once for each packet.
2586 cur_tx->xl_ptr->xl_status = htole32(le32toh(cur_tx->xl_ptr->xl_status) |
2588 bus_dmamap_sync(sc->xl_ldata.xl_tx_tag, sc->xl_ldata.xl_tx_dmamap,
2589 BUS_DMASYNC_PREWRITE);
2592 * Queue the packets. If the TX channel is clear, update
2593 * the downlist pointer register.
2595 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_STALL);
2598 if (sc->xl_cdata.xl_tx_head != NULL) {
2599 sc->xl_cdata.xl_tx_tail->xl_next = start_tx;
2600 sc->xl_cdata.xl_tx_tail->xl_ptr->xl_next =
2601 htole32(start_tx->xl_phys);
2602 status = sc->xl_cdata.xl_tx_tail->xl_ptr->xl_status;
2603 sc->xl_cdata.xl_tx_tail->xl_ptr->xl_status =
2604 htole32(le32toh(status) & ~XL_TXSTAT_DL_INTR);
2605 sc->xl_cdata.xl_tx_tail = cur_tx;
2607 sc->xl_cdata.xl_tx_head = start_tx;
2608 sc->xl_cdata.xl_tx_tail = cur_tx;
2610 if (!CSR_READ_4(sc, XL_DOWNLIST_PTR))
2611 CSR_WRITE_4(sc, XL_DOWNLIST_PTR, start_tx->xl_phys);
2613 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2618 * Set a timeout in case the chip goes out to lunch.
2623 * XXX Under certain conditions, usually on slower machines
2624 * where interrupts may be dropped, it's possible for the
2625 * adapter to chew up all the buffers in the receive ring
2626 * and stall, without us being able to do anything about it.
2627 * To guard against this, we need to make a pass over the
2628 * RX queue to make sure there aren't any packets pending.
2629 * Doing it here means we can flush the receive ring at the
2630 * same time the chip is DMAing the transmit descriptors we
2633 * 3Com goes to some lengths to emphasize the Parallel Tasking (tm)
2634 * nature of their chips in all their marketing literature;
2635 * we may as well take advantage of it. :)
2646 struct xl_softc *sc;
2647 struct mbuf *m_head = NULL;
2648 struct xl_chain *prev = NULL, *cur_tx = NULL, *start_tx;
2649 struct xl_chain *prev_tx;
2654 if (ifp->if_flags & IFF_OACTIVE) {
2658 idx = sc->xl_cdata.xl_tx_prod;
2659 start_tx = &sc->xl_cdata.xl_tx_chain[idx];
2661 while (sc->xl_cdata.xl_tx_chain[idx].xl_mbuf == NULL) {
2663 if ((XL_TX_LIST_CNT - sc->xl_cdata.xl_tx_cnt) < 3) {
2664 ifp->if_flags |= IFF_OACTIVE;
2668 m_head = ifq_dequeue(&ifp->if_snd);
2673 cur_tx = &sc->xl_cdata.xl_tx_chain[idx];
2675 /* Pack the data into the descriptor. */
2676 error = xl_encap(sc, cur_tx, m_head);
2682 /* Chain it together. */
2684 prev->xl_ptr->xl_next = htole32(cur_tx->xl_phys);
2687 BPF_MTAP(ifp, cur_tx->xl_mbuf);
2689 XL_INC(idx, XL_TX_LIST_CNT);
2690 sc->xl_cdata.xl_tx_cnt++;
2694 * If there are no packets queued, bail.
2696 if (cur_tx == NULL) {
2701 * Place the request for the upload interrupt
2702 * in the last descriptor in the chain. This way, if
2703 * we're chaining several packets at once, we'll only
2704 * get an interupt once for the whole chain rather than
2705 * once for each packet.
2707 cur_tx->xl_ptr->xl_status = htole32(le32toh(cur_tx->xl_ptr->xl_status) |
2709 bus_dmamap_sync(sc->xl_ldata.xl_tx_tag, sc->xl_ldata.xl_tx_dmamap,
2710 BUS_DMASYNC_PREWRITE);
2712 /* Start transmission */
2713 sc->xl_cdata.xl_tx_prod = idx;
2714 start_tx->xl_prev->xl_ptr->xl_next = htole32(start_tx->xl_phys);
2717 * Set a timeout in case the chip goes out to lunch.
2728 struct xl_softc *sc = xsc;
2729 struct ifnet *ifp = &sc->arpcom.ac_if;
2731 u_int16_t rxfilt = 0;
2732 struct mii_data *mii = NULL;
2737 * Cancel pending I/O and free all RX/TX buffers.
2741 if (sc->xl_miibus == NULL) {
2742 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_RESET);
2745 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
2749 if (sc->xl_miibus != NULL)
2750 mii = device_get_softc(sc->xl_miibus);
2752 /* Init our MAC address */
2754 for (i = 0; i < ETHER_ADDR_LEN; i++) {
2755 CSR_WRITE_1(sc, XL_W2_STATION_ADDR_LO + i,
2756 sc->arpcom.ac_enaddr[i]);
2759 /* Clear the station mask. */
2760 for (i = 0; i < 3; i++)
2761 CSR_WRITE_2(sc, XL_W2_STATION_MASK_LO + (i * 2), 0);
2763 /* Reset TX and RX. */
2764 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_RESET);
2766 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
2769 /* Init circular RX list. */
2770 error = xl_list_rx_init(sc);
2772 if_printf(ifp, "initialization of the rx ring failed (%d)\n",
2779 /* Init TX descriptors. */
2780 if (sc->xl_type == XL_TYPE_905B)
2781 error = xl_list_tx_init_90xB(sc);
2783 error = xl_list_tx_init(sc);
2785 if_printf(ifp, "initialization of the tx ring failed (%d)\n",
2793 * Set the TX freethresh value.
2794 * Note that this has no effect on 3c905B "cyclone"
2795 * cards but is required for 3c900/3c905 "boomerang"
2796 * cards in order to enable the download engine.
2798 CSR_WRITE_1(sc, XL_TX_FREETHRESH, XL_PACKET_SIZE >> 8);
2800 /* Set the TX start threshold for best performance. */
2801 sc->xl_tx_thresh = XL_MIN_FRAMELEN;
2802 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_SET_START|sc->xl_tx_thresh);
2805 * If this is a 3c905B, also set the tx reclaim threshold.
2806 * This helps cut down on the number of tx reclaim errors
2807 * that could happen on a busy network. The chip multiplies
2808 * the register value by 16 to obtain the actual threshold
2809 * in bytes, so we divide by 16 when setting the value here.
2810 * The existing threshold value can be examined by reading
2811 * the register at offset 9 in window 5.
2813 if (sc->xl_type == XL_TYPE_905B) {
2814 CSR_WRITE_2(sc, XL_COMMAND,
2815 XL_CMD_SET_TX_RECLAIM|(XL_PACKET_SIZE >> 4));
2818 /* Set RX filter bits. */
2820 rxfilt = CSR_READ_1(sc, XL_W5_RX_FILTER);
2822 /* Set the individual bit to receive frames for this host only. */
2823 rxfilt |= XL_RXFILTER_INDIVIDUAL;
2825 /* If we want promiscuous mode, set the allframes bit. */
2826 if (ifp->if_flags & IFF_PROMISC) {
2827 rxfilt |= XL_RXFILTER_ALLFRAMES;
2828 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
2830 rxfilt &= ~XL_RXFILTER_ALLFRAMES;
2831 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
2835 * Set capture broadcast bit to capture broadcast frames.
2837 if (ifp->if_flags & IFF_BROADCAST) {
2838 rxfilt |= XL_RXFILTER_BROADCAST;
2839 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
2841 rxfilt &= ~XL_RXFILTER_BROADCAST;
2842 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
2846 * Program the multicast filter, if necessary.
2848 if (sc->xl_type == XL_TYPE_905B)
2849 xl_setmulti_hash(sc);
2854 * Load the address of the RX list. We have to
2855 * stall the upload engine before we can manipulate
2856 * the uplist pointer register, then unstall it when
2857 * we're finished. We also have to wait for the
2858 * stall command to complete before proceeding.
2859 * Note that we have to do this after any RX resets
2860 * have completed since the uplist register is cleared
2863 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_UP_STALL);
2865 CSR_WRITE_4(sc, XL_UPLIST_PTR, sc->xl_ldata.xl_rx_dmaaddr);
2866 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_UP_UNSTALL);
2870 if (sc->xl_type == XL_TYPE_905B) {
2871 /* Set polling interval */
2872 CSR_WRITE_1(sc, XL_DOWN_POLL, 64);
2873 /* Load the address of the TX list */
2874 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_STALL);
2876 CSR_WRITE_4(sc, XL_DOWNLIST_PTR,
2877 sc->xl_cdata.xl_tx_chain[0].xl_phys);
2878 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2883 * If the coax transceiver is on, make sure to enable
2884 * the DC-DC converter.
2887 if (sc->xl_xcvr == XL_XCVR_COAX)
2888 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_START);
2890 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_STOP);
2893 * increase packet size to allow reception of 802.1q or ISL packets.
2894 * For the 3c90x chip, set the 'allow large packets' bit in the MAC
2895 * control register. For 3c90xB/C chips, use the RX packet size
2899 if (sc->xl_type == XL_TYPE_905B)
2900 CSR_WRITE_2(sc, XL_W3_MAXPKTSIZE, XL_PACKET_SIZE);
2903 macctl = CSR_READ_1(sc, XL_W3_MAC_CTRL);
2904 macctl |= XL_MACCTRL_ALLOW_LARGE_PACK;
2905 CSR_WRITE_1(sc, XL_W3_MAC_CTRL, macctl);
2908 /* Clear out the stats counters. */
2909 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STATS_DISABLE);
2910 sc->xl_stats_no_timeout = 1;
2911 xl_stats_update(sc);
2912 sc->xl_stats_no_timeout = 0;
2914 CSR_WRITE_2(sc, XL_W4_NET_DIAG, XL_NETDIAG_UPPER_BYTES_ENABLE);
2915 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STATS_ENABLE);
2918 * Enable interrupts.
2920 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ACK|0xFF);
2921 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STAT_ENB|XL_INTRS);
2922 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ENB|XL_INTRS);
2923 if (sc->xl_flags & XL_FLAG_FUNCREG)
2924 bus_space_write_4(sc->xl_ftag, sc->xl_fhandle, 4, 0x8000);
2926 /* Set the RX early threshold */
2927 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_THRESH|(XL_PACKET_SIZE >>2));
2928 CSR_WRITE_2(sc, XL_DMACTL, XL_DMACTL_UP_RX_EARLY);
2930 /* Enable receiver and transmitter. */
2931 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_ENABLE);
2933 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_ENABLE);
2939 /* Select window 7 for normal operations. */
2942 ifp->if_flags |= IFF_RUNNING;
2943 ifp->if_flags &= ~IFF_OACTIVE;
2945 callout_reset(&sc->xl_stat_timer, hz, xl_stats_update, sc);
2951 * Set media options.
2957 struct xl_softc *sc;
2958 struct ifmedia *ifm = NULL;
2959 struct mii_data *mii = NULL;
2962 if (sc->xl_miibus != NULL)
2963 mii = device_get_softc(sc->xl_miibus);
2967 ifm = &mii->mii_media;
2969 switch(IFM_SUBTYPE(ifm->ifm_media)) {
2974 xl_setmode(sc, ifm->ifm_media);
2981 if (sc->xl_media & XL_MEDIAOPT_MII || sc->xl_media & XL_MEDIAOPT_BTX
2982 || sc->xl_media & XL_MEDIAOPT_BT4) {
2985 xl_setmode(sc, ifm->ifm_media);
2992 * Report current media status.
2995 xl_ifmedia_sts(ifp, ifmr)
2997 struct ifmediareq *ifmr;
2999 struct xl_softc *sc;
3001 struct mii_data *mii = NULL;
3004 if (sc->xl_miibus != NULL)
3005 mii = device_get_softc(sc->xl_miibus);
3008 icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG) & XL_ICFG_CONNECTOR_MASK;
3009 icfg >>= XL_ICFG_CONNECTOR_BITS;
3011 ifmr->ifm_active = IFM_ETHER;
3015 ifmr->ifm_active = IFM_ETHER|IFM_10_T;
3016 if (CSR_READ_1(sc, XL_W3_MAC_CTRL) & XL_MACCTRL_DUPLEX)
3017 ifmr->ifm_active |= IFM_FDX;
3019 ifmr->ifm_active |= IFM_HDX;
3022 if (sc->xl_type == XL_TYPE_905B &&
3023 sc->xl_media == XL_MEDIAOPT_10FL) {
3024 ifmr->ifm_active = IFM_ETHER|IFM_10_FL;
3025 if (CSR_READ_1(sc, XL_W3_MAC_CTRL) & XL_MACCTRL_DUPLEX)
3026 ifmr->ifm_active |= IFM_FDX;
3028 ifmr->ifm_active |= IFM_HDX;
3030 ifmr->ifm_active = IFM_ETHER|IFM_10_5;
3033 ifmr->ifm_active = IFM_ETHER|IFM_10_2;
3036 * XXX MII and BTX/AUTO should be separate cases.
3039 case XL_XCVR_100BTX:
3044 ifmr->ifm_active = mii->mii_media_active;
3045 ifmr->ifm_status = mii->mii_media_status;
3048 case XL_XCVR_100BFX:
3049 ifmr->ifm_active = IFM_ETHER|IFM_100_FX;
3052 if_printf(ifp, "unknown XCVR type: %d\n", icfg);
3060 xl_ioctl(ifp, command, data, cr)
3066 struct xl_softc *sc = ifp->if_softc;
3067 struct ifreq *ifr = (struct ifreq *) data;
3069 struct mii_data *mii = NULL;
3077 rxfilt = CSR_READ_1(sc, XL_W5_RX_FILTER);
3078 if (ifp->if_flags & IFF_UP) {
3079 if (ifp->if_flags & IFF_RUNNING &&
3080 ifp->if_flags & IFF_PROMISC &&
3081 !(sc->xl_if_flags & IFF_PROMISC)) {
3082 rxfilt |= XL_RXFILTER_ALLFRAMES;
3083 CSR_WRITE_2(sc, XL_COMMAND,
3084 XL_CMD_RX_SET_FILT|rxfilt);
3086 } else if (ifp->if_flags & IFF_RUNNING &&
3087 !(ifp->if_flags & IFF_PROMISC) &&
3088 sc->xl_if_flags & IFF_PROMISC) {
3089 rxfilt &= ~XL_RXFILTER_ALLFRAMES;
3090 CSR_WRITE_2(sc, XL_COMMAND,
3091 XL_CMD_RX_SET_FILT|rxfilt);
3096 if (ifp->if_flags & IFF_RUNNING)
3099 sc->xl_if_flags = ifp->if_flags;
3104 if (sc->xl_type == XL_TYPE_905B)
3105 xl_setmulti_hash(sc);
3112 if (sc->xl_miibus != NULL)
3113 mii = device_get_softc(sc->xl_miibus);
3115 error = ifmedia_ioctl(ifp, ifr,
3116 &sc->ifmedia, command);
3118 error = ifmedia_ioctl(ifp, ifr,
3119 &mii->mii_media, command);
3122 ifp->if_capenable = ifr->ifr_reqcap;
3123 if (ifp->if_capenable & IFCAP_TXCSUM)
3124 ifp->if_hwassist = XL905B_CSUM_FEATURES;
3126 ifp->if_hwassist = 0;
3129 error = ether_ioctl(ifp, command, data);
3142 struct xl_softc *sc;
3143 u_int16_t status = 0;
3149 status = CSR_READ_2(sc, XL_W4_MEDIA_STATUS);
3150 if_printf(ifp, "watchdog timeout\n");
3152 if (status & XL_MEDIASTAT_CARRIER)
3153 if_printf(ifp, "no carrier - transceiver cable problem?\n");
3160 if (!ifq_is_empty(&ifp->if_snd))
3161 (*ifp->if_start)(ifp);
3165 * Stop the adapter and free any mbufs allocated to the
3170 struct xl_softc *sc;
3175 ifp = &sc->arpcom.ac_if;
3178 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_DISABLE);
3179 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STATS_DISABLE);
3180 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ENB);
3181 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_DISCARD);
3183 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_DISABLE);
3184 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_STOP);
3188 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_RESET);
3190 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
3194 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ACK|XL_STAT_INTLATCH);
3195 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STAT_ENB|0);
3196 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ENB|0);
3197 if (sc->xl_flags & XL_FLAG_FUNCREG) bus_space_write_4 (sc->xl_ftag, sc->xl_fhandle, 4, 0x8000);
3199 /* Stop the stats updater. */
3200 callout_stop(&sc->xl_stat_timer);
3203 * Free data in the RX lists.
3205 for (i = 0; i < XL_RX_LIST_CNT; i++) {
3206 if (sc->xl_cdata.xl_rx_chain[i].xl_mbuf != NULL) {
3207 bus_dmamap_unload(sc->xl_mtag,
3208 sc->xl_cdata.xl_rx_chain[i].xl_map);
3209 bus_dmamap_destroy(sc->xl_mtag,
3210 sc->xl_cdata.xl_rx_chain[i].xl_map);
3211 m_freem(sc->xl_cdata.xl_rx_chain[i].xl_mbuf);
3212 sc->xl_cdata.xl_rx_chain[i].xl_mbuf = NULL;
3215 bzero(sc->xl_ldata.xl_rx_list, XL_RX_LIST_SZ);
3217 * Free the TX list buffers.
3219 for (i = 0; i < XL_TX_LIST_CNT; i++) {
3220 if (sc->xl_cdata.xl_tx_chain[i].xl_mbuf != NULL) {
3221 bus_dmamap_unload(sc->xl_mtag,
3222 sc->xl_cdata.xl_tx_chain[i].xl_map);
3223 bus_dmamap_destroy(sc->xl_mtag,
3224 sc->xl_cdata.xl_tx_chain[i].xl_map);
3225 m_freem(sc->xl_cdata.xl_tx_chain[i].xl_mbuf);
3226 sc->xl_cdata.xl_tx_chain[i].xl_mbuf = NULL;
3229 bzero(sc->xl_ldata.xl_tx_list, XL_TX_LIST_SZ);
3231 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3237 * Stop all chip I/O so that the kernel's probe routines don't
3238 * get confused by errant DMAs when rebooting.
3244 struct xl_softc *sc;
3246 sc = device_get_softc(dev);
3258 struct xl_softc *sc = device_get_softc(dev);
3273 struct xl_softc *sc;
3276 sc = device_get_softc(dev);
3277 ifp = &sc->arpcom.ac_if;
3282 if (ifp->if_flags & IFF_UP)