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 $
36 * 3Com 3c90x Etherlink XL PCI NIC driver
38 * Supports the 3Com "boomerang", "cyclone" and "hurricane" PCI
39 * bus-master chips (3c90x cards and embedded controllers) including
42 * 3Com 3c900-TPO 10Mbps/RJ-45
43 * 3Com 3c900-COMBO 10Mbps/RJ-45,AUI,BNC
44 * 3Com 3c905-TX 10/100Mbps/RJ-45
45 * 3Com 3c905-T4 10/100Mbps/RJ-45
46 * 3Com 3c900B-TPO 10Mbps/RJ-45
47 * 3Com 3c900B-COMBO 10Mbps/RJ-45,AUI,BNC
48 * 3Com 3c900B-TPC 10Mbps/RJ-45,BNC
49 * 3Com 3c900B-FL 10Mbps/Fiber-optic
50 * 3Com 3c905B-COMBO 10/100Mbps/RJ-45,AUI,BNC
51 * 3Com 3c905B-TX 10/100Mbps/RJ-45
52 * 3Com 3c905B-FL/FX 10/100Mbps/Fiber-optic
53 * 3Com 3c905C-TX 10/100Mbps/RJ-45 (Tornado ASIC)
54 * 3Com 3c980-TX 10/100Mbps server adapter (Hurricane ASIC)
55 * 3Com 3c980C-TX 10/100Mbps server adapter (Tornado ASIC)
56 * 3Com 3cSOHO100-TX 10/100Mbps/RJ-45 (Hurricane ASIC)
57 * 3Com 3c450-TX 10/100Mbps/RJ-45 (Tornado ASIC)
58 * 3Com 3c555 10/100Mbps/RJ-45 (MiniPCI, Laptop Hurricane)
59 * 3Com 3c556 10/100Mbps/RJ-45 (MiniPCI, Hurricane ASIC)
60 * 3Com 3c556B 10/100Mbps/RJ-45 (MiniPCI, Hurricane ASIC)
61 * 3Com 3c575TX 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
62 * 3Com 3c575B 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
63 * 3Com 3c575C 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
64 * 3Com 3cxfem656 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
65 * 3Com 3cxfem656b 10/100Mbps/RJ-45 (Cardbus, Hurricane ASIC)
66 * 3Com 3cxfem656c 10/100Mbps/RJ-45 (Cardbus, Tornado ASIC)
67 * Dell Optiplex GX1 on-board 3c918 10/100Mbps/RJ-45
68 * Dell on-board 3c920 10/100Mbps/RJ-45
69 * Dell Precision on-board 3c905B 10/100Mbps/RJ-45
70 * Dell Latitude laptop docking station embedded 3c905-TX
72 * Written by Bill Paul <wpaul@ctr.columbia.edu>
73 * Electrical Engineering Department
74 * Columbia University, New York City
78 * The 3c90x series chips use a bus-master DMA interface for transfering
79 * packets to and from the controller chip. Some of the "vortex" cards
80 * (3c59x) also supported a bus master mode, however for those chips
81 * you could only DMA packets to/from a contiguous memory buffer. For
82 * transmission this would mean copying the contents of the queued mbuf
83 * chain into an mbuf cluster and then DMAing the cluster. This extra
84 * copy would sort of defeat the purpose of the bus master support for
85 * any packet that doesn't fit into a single mbuf.
87 * By contrast, the 3c90x cards support a fragment-based bus master
88 * mode where mbuf chains can be encapsulated using TX descriptors.
89 * This is similar to other PCI chips such as the Texas Instruments
90 * ThunderLAN and the Intel 82557/82558.
92 * The "vortex" driver (if_vx.c) happens to work for the "boomerang"
93 * bus master chips because they maintain the old PIO interface for
94 * backwards compatibility, but starting with the 3c905B and the
95 * "cyclone" chips, the compatibility interface has been dropped.
96 * Since using bus master DMA is a big win, we use this driver to
97 * support the PCI "boomerang" chips even though they work with the
98 * "vortex" driver in order to obtain better performance.
101 #include "opt_ifpoll.h"
103 #include <sys/param.h>
104 #include <sys/systm.h>
105 #include <sys/sockio.h>
106 #include <sys/endian.h>
107 #include <sys/mbuf.h>
108 #include <sys/kernel.h>
109 #include <sys/socket.h>
110 #include <sys/serialize.h>
112 #include <sys/rman.h>
113 #include <sys/thread2.h>
114 #include <sys/interrupt.h>
117 #include <net/ifq_var.h>
118 #include <net/if_arp.h>
119 #include <net/ethernet.h>
120 #include <net/if_dl.h>
121 #include <net/if_media.h>
122 #include <net/if_poll.h>
123 #include <net/vlan/if_vlan_var.h>
127 #include "../mii_layer/mii.h"
128 #include "../mii_layer/miivar.h"
130 #include <bus/pci/pcireg.h>
131 #include <bus/pci/pcivar.h>
133 /* "controller miibus0" required. See GENERIC if you get errors here. */
134 #include "miibus_if.h"
136 #include "if_xlreg.h"
138 #define XL905B_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
141 * Various supported device vendors/types and their names.
143 static struct xl_type xl_devs[] = {
144 { TC_VENDORID, TC_DEVICEID_BOOMERANG_10BT,
145 "3Com 3c900-TPO Etherlink XL" },
146 { TC_VENDORID, TC_DEVICEID_BOOMERANG_10BT_COMBO,
147 "3Com 3c900-COMBO Etherlink XL" },
148 { TC_VENDORID, TC_DEVICEID_BOOMERANG_10_100BT,
149 "3Com 3c905-TX Fast Etherlink XL" },
150 { TC_VENDORID, TC_DEVICEID_BOOMERANG_100BT4,
151 "3Com 3c905-T4 Fast Etherlink XL" },
152 { TC_VENDORID, TC_DEVICEID_KRAKATOA_10BT,
153 "3Com 3c900B-TPO Etherlink XL" },
154 { TC_VENDORID, TC_DEVICEID_KRAKATOA_10BT_COMBO,
155 "3Com 3c900B-COMBO Etherlink XL" },
156 { TC_VENDORID, TC_DEVICEID_KRAKATOA_10BT_TPC,
157 "3Com 3c900B-TPC Etherlink XL" },
158 { TC_VENDORID, TC_DEVICEID_CYCLONE_10FL,
159 "3Com 3c900B-FL Etherlink XL" },
160 { TC_VENDORID, TC_DEVICEID_HURRICANE_10_100BT,
161 "3Com 3c905B-TX Fast Etherlink XL" },
162 { TC_VENDORID, TC_DEVICEID_CYCLONE_10_100BT4,
163 "3Com 3c905B-T4 Fast Etherlink XL" },
164 { TC_VENDORID, TC_DEVICEID_CYCLONE_10_100FX,
165 "3Com 3c905B-FX/SC Fast Etherlink XL" },
166 { TC_VENDORID, TC_DEVICEID_CYCLONE_10_100_COMBO,
167 "3Com 3c905B-COMBO Fast Etherlink XL" },
168 { TC_VENDORID, TC_DEVICEID_TORNADO_10_100BT,
169 "3Com 3c905C-TX Fast Etherlink XL" },
170 { TC_VENDORID, TC_DEVICEID_TORNADO_10_100BT_920B,
171 "3Com 3c920B-EMB Integrated Fast Etherlink XL" },
172 { TC_VENDORID, TC_DEVICEID_HURRICANE_10_100BT_SERV,
173 "3Com 3c980 Fast Etherlink XL" },
174 { TC_VENDORID, TC_DEVICEID_TORNADO_10_100BT_SERV,
175 "3Com 3c980C Fast Etherlink XL" },
176 { TC_VENDORID, TC_DEVICEID_HURRICANE_SOHO100TX,
177 "3Com 3cSOHO100-TX OfficeConnect" },
178 { TC_VENDORID, TC_DEVICEID_TORNADO_HOMECONNECT,
179 "3Com 3c450-TX HomeConnect" },
180 { TC_VENDORID, TC_DEVICEID_HURRICANE_555,
181 "3Com 3c555 Fast Etherlink XL" },
182 { TC_VENDORID, TC_DEVICEID_HURRICANE_556,
183 "3Com 3c556 Fast Etherlink XL" },
184 { TC_VENDORID, TC_DEVICEID_HURRICANE_556B,
185 "3Com 3c556B Fast Etherlink XL" },
186 { TC_VENDORID, TC_DEVICEID_HURRICANE_575A,
187 "3Com 3c575TX Fast Etherlink XL" },
188 { TC_VENDORID, TC_DEVICEID_HURRICANE_575B,
189 "3Com 3c575B Fast Etherlink XL" },
190 { TC_VENDORID, TC_DEVICEID_HURRICANE_575C,
191 "3Com 3c575C Fast Etherlink XL" },
192 { TC_VENDORID, TC_DEVICEID_HURRICANE_656,
193 "3Com 3c656 Fast Etherlink XL" },
194 { TC_VENDORID, TC_DEVICEID_HURRICANE_656B,
195 "3Com 3c656B Fast Etherlink XL" },
196 { TC_VENDORID, TC_DEVICEID_TORNADO_656C,
197 "3Com 3c656C Fast Etherlink XL" },
201 static int xl_probe (device_t);
202 static int xl_attach (device_t);
203 static int xl_detach (device_t);
204 static void xl_shutdown (device_t);
205 static int xl_suspend (device_t);
206 static int xl_resume (device_t);
208 static int xl_newbuf (struct xl_softc *, struct xl_chain_onefrag *,
210 static void xl_stats_update (void *);
211 static void xl_stats_update_serialized(void *);
212 static int xl_encap (struct xl_softc *, struct xl_chain *,
214 static void xl_rxeof (struct xl_softc *, int);
215 static int xl_rx_resync (struct xl_softc *);
216 static void xl_txeof (struct xl_softc *);
217 static void xl_txeof_90xB (struct xl_softc *);
218 static void xl_txeoc (struct xl_softc *);
219 static void xl_intr (void *);
220 static void xl_start_body (struct ifnet *, int);
221 static void xl_start (struct ifnet *);
222 static void xl_start_90xB (struct ifnet *);
223 static int xl_ioctl (struct ifnet *, u_long, caddr_t,
225 static void xl_init (void *);
226 static void xl_stop (struct xl_softc *);
227 static void xl_watchdog (struct ifnet *);
229 static void xl_start_poll (struct ifnet *);
230 static void xl_npoll (struct ifnet *, struct ifpoll_info *);
231 static void xl_npoll_compat (struct ifnet *, void *, int);
233 static void xl_enable_intrs (struct xl_softc *, uint16_t);
235 static int xl_ifmedia_upd (struct ifnet *);
236 static void xl_ifmedia_sts (struct ifnet *, struct ifmediareq *);
238 static int xl_eeprom_wait (struct xl_softc *);
239 static int xl_read_eeprom (struct xl_softc *, caddr_t, int, int, int);
240 static void xl_mii_sync (struct xl_softc *);
241 static void xl_mii_send (struct xl_softc *, u_int32_t, int);
242 static int xl_mii_readreg (struct xl_softc *, struct xl_mii_frame *);
243 static int xl_mii_writereg (struct xl_softc *, struct xl_mii_frame *);
245 static void xl_setcfg (struct xl_softc *);
246 static void xl_setmode (struct xl_softc *, int);
247 static void xl_setmulti (struct xl_softc *);
248 static void xl_setmulti_hash (struct xl_softc *);
249 static void xl_reset (struct xl_softc *);
250 static int xl_list_rx_init (struct xl_softc *);
251 static void xl_list_tx_init (struct xl_softc *);
252 static void xl_list_tx_init_90xB(struct xl_softc *);
253 static void xl_wait (struct xl_softc *);
254 static void xl_mediacheck (struct xl_softc *);
255 static void xl_choose_xcvr (struct xl_softc *, int);
257 static int xl_dma_alloc (device_t);
258 static void xl_dma_free (device_t);
261 static void xl_testpacket (struct xl_softc *);
264 static int xl_miibus_readreg (device_t, int, int);
265 static int xl_miibus_writereg (device_t, int, int, int);
266 static void xl_miibus_statchg (device_t);
267 static void xl_miibus_mediainit (device_t);
269 static device_method_t xl_methods[] = {
270 /* Device interface */
271 DEVMETHOD(device_probe, xl_probe),
272 DEVMETHOD(device_attach, xl_attach),
273 DEVMETHOD(device_detach, xl_detach),
274 DEVMETHOD(device_shutdown, xl_shutdown),
275 DEVMETHOD(device_suspend, xl_suspend),
276 DEVMETHOD(device_resume, xl_resume),
279 DEVMETHOD(bus_print_child, bus_generic_print_child),
280 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
283 DEVMETHOD(miibus_readreg, xl_miibus_readreg),
284 DEVMETHOD(miibus_writereg, xl_miibus_writereg),
285 DEVMETHOD(miibus_statchg, xl_miibus_statchg),
286 DEVMETHOD(miibus_mediainit, xl_miibus_mediainit),
291 static driver_t xl_driver = {
294 sizeof(struct xl_softc)
297 static devclass_t xl_devclass;
299 DECLARE_DUMMY_MODULE(if_xl);
300 MODULE_DEPEND(if_xl, miibus, 1, 1, 1);
301 DRIVER_MODULE(if_xl, pci, xl_driver, xl_devclass, NULL, NULL);
302 DRIVER_MODULE(if_xl, cardbus, xl_driver, xl_devclass, NULL, NULL);
303 DRIVER_MODULE(miibus, xl, miibus_driver, miibus_devclass, NULL, NULL);
306 xl_enable_intrs(struct xl_softc *sc, uint16_t intrs)
308 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ACK | 0xFF);
309 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ENB | intrs);
310 if (sc->xl_flags & XL_FLAG_FUNCREG)
311 bus_space_write_4(sc->xl_ftag, sc->xl_fhandle, 4, 0x8000);
312 sc->xl_npoll.ifpc_stcount = 0;
316 * Murphy's law says that it's possible the chip can wedge and
317 * the 'command in progress' bit may never clear. Hence, we wait
318 * only a finite amount of time to avoid getting caught in an
319 * infinite loop. Normally this delay routine would be a macro,
320 * but it isn't called during normal operation so we can afford
321 * to make it a function.
324 xl_wait(struct xl_softc *sc)
328 for (i = 0; i < XL_TIMEOUT; i++) {
329 if (!(CSR_READ_2(sc, XL_STATUS) & XL_STAT_CMDBUSY))
334 if_printf(&sc->arpcom.ac_if, "command never completed!");
340 * MII access routines are provided for adapters with external
341 * PHYs (3c905-TX, 3c905-T4, 3c905B-T4) and those with built-in
342 * autoneg logic that's faked up to look like a PHY (3c905B-TX).
343 * Note: if you don't perform the MDIO operations just right,
344 * it's possible to end up with code that works correctly with
345 * some chips/CPUs/processor speeds/bus speeds/etc but not
349 CSR_WRITE_2(sc, XL_W4_PHY_MGMT, \
350 CSR_READ_2(sc, XL_W4_PHY_MGMT) | (x))
353 CSR_WRITE_2(sc, XL_W4_PHY_MGMT, \
354 CSR_READ_2(sc, XL_W4_PHY_MGMT) & ~(x))
357 * Sync the PHYs by setting data bit and strobing the clock 32 times.
360 xl_mii_sync(struct xl_softc *sc)
365 MII_SET(XL_MII_DIR|XL_MII_DATA);
367 for (i = 0; i < 32; i++) {
369 MII_SET(XL_MII_DATA);
370 MII_SET(XL_MII_DATA);
372 MII_SET(XL_MII_DATA);
373 MII_SET(XL_MII_DATA);
380 * Clock a series of bits through the MII.
383 xl_mii_send(struct xl_softc *sc, u_int32_t bits, int cnt)
390 for (i = (0x1 << (cnt - 1)); i; i >>= 1) {
392 MII_SET(XL_MII_DATA);
394 MII_CLR(XL_MII_DATA);
402 * Read an PHY register through the MII.
405 xl_mii_readreg(struct xl_softc *sc, struct xl_mii_frame *frame)
410 * Set up frame for RX.
412 frame->mii_stdelim = XL_MII_STARTDELIM;
413 frame->mii_opcode = XL_MII_READOP;
414 frame->mii_turnaround = 0;
418 * Select register window 4.
423 CSR_WRITE_2(sc, XL_W4_PHY_MGMT, 0);
432 * Send command/address info.
434 xl_mii_send(sc, frame->mii_stdelim, 2);
435 xl_mii_send(sc, frame->mii_opcode, 2);
436 xl_mii_send(sc, frame->mii_phyaddr, 5);
437 xl_mii_send(sc, frame->mii_regaddr, 5);
440 MII_CLR((XL_MII_CLK|XL_MII_DATA));
448 ack = CSR_READ_2(sc, XL_W4_PHY_MGMT) & XL_MII_DATA;
452 * Now try reading data bits. If the ack failed, we still
453 * need to clock through 16 cycles to keep the PHY(s) in sync.
456 for(i = 0; i < 16; i++) {
463 for (i = 0x8000; i; i >>= 1) {
466 if (CSR_READ_2(sc, XL_W4_PHY_MGMT) & XL_MII_DATA)
467 frame->mii_data |= i;
483 * Write to a PHY register through the MII.
486 xl_mii_writereg(struct xl_softc *sc, struct xl_mii_frame *frame)
489 * Set up frame for TX.
492 frame->mii_stdelim = XL_MII_STARTDELIM;
493 frame->mii_opcode = XL_MII_WRITEOP;
494 frame->mii_turnaround = XL_MII_TURNAROUND;
497 * Select the window 4.
502 * Turn on data output.
508 xl_mii_send(sc, frame->mii_stdelim, 2);
509 xl_mii_send(sc, frame->mii_opcode, 2);
510 xl_mii_send(sc, frame->mii_phyaddr, 5);
511 xl_mii_send(sc, frame->mii_regaddr, 5);
512 xl_mii_send(sc, frame->mii_turnaround, 2);
513 xl_mii_send(sc, frame->mii_data, 16);
528 xl_miibus_readreg(device_t dev, int phy, int reg)
531 struct xl_mii_frame frame;
533 sc = device_get_softc(dev);
536 * Pretend that PHYs are only available at MII address 24.
537 * This is to guard against problems with certain 3Com ASIC
538 * revisions that incorrectly map the internal transceiver
539 * control registers at all MII addresses. This can cause
540 * the miibus code to attach the same PHY several times over.
542 if ((!(sc->xl_flags & XL_FLAG_PHYOK)) && phy != 24)
545 bzero((char *)&frame, sizeof(frame));
547 frame.mii_phyaddr = phy;
548 frame.mii_regaddr = reg;
549 xl_mii_readreg(sc, &frame);
551 return(frame.mii_data);
555 xl_miibus_writereg(device_t dev, int phy, int reg, int data)
558 struct xl_mii_frame frame;
560 sc = device_get_softc(dev);
562 if ((!(sc->xl_flags & XL_FLAG_PHYOK)) && phy != 24)
565 bzero((char *)&frame, sizeof(frame));
567 frame.mii_phyaddr = phy;
568 frame.mii_regaddr = reg;
569 frame.mii_data = data;
571 xl_mii_writereg(sc, &frame);
577 xl_miibus_statchg(device_t dev)
580 struct mii_data *mii;
582 sc = device_get_softc(dev);
583 mii = device_get_softc(sc->xl_miibus);
585 ASSERT_SERIALIZED(sc->arpcom.ac_if.if_serializer);
589 /* Set ASIC's duplex mode to match the PHY. */
591 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
592 CSR_WRITE_1(sc, XL_W3_MAC_CTRL, XL_MACCTRL_DUPLEX);
594 CSR_WRITE_1(sc, XL_W3_MAC_CTRL,
595 (CSR_READ_1(sc, XL_W3_MAC_CTRL) & ~XL_MACCTRL_DUPLEX));
599 * Special support for the 3c905B-COMBO. This card has 10/100 support
600 * plus BNC and AUI ports. This means we will have both an miibus attached
601 * plus some non-MII media settings. In order to allow this, we have to
602 * add the extra media to the miibus's ifmedia struct, but we can't do
603 * that during xl_attach() because the miibus hasn't been attached yet.
604 * So instead, we wait until the miibus probe/attach is done, at which
605 * point we will get a callback telling is that it's safe to add our
609 xl_miibus_mediainit(device_t dev)
612 struct mii_data *mii;
615 sc = device_get_softc(dev);
616 mii = device_get_softc(sc->xl_miibus);
617 ifm = &mii->mii_media;
619 if (sc->xl_media & (XL_MEDIAOPT_AUI|XL_MEDIAOPT_10FL)) {
621 * Check for a 10baseFL board in disguise.
623 if (sc->xl_type == XL_TYPE_905B &&
624 sc->xl_media == XL_MEDIAOPT_10FL) {
626 device_printf(dev, "found 10baseFL\n");
627 ifmedia_add(ifm, IFM_ETHER|IFM_10_FL, 0, NULL);
628 ifmedia_add(ifm, IFM_ETHER|IFM_10_FL|IFM_HDX, 0, NULL);
629 if (sc->xl_caps & XL_CAPS_FULL_DUPLEX)
631 IFM_ETHER|IFM_10_FL|IFM_FDX, 0, NULL);
634 device_printf(dev, "found AUI\n");
635 ifmedia_add(ifm, IFM_ETHER|IFM_10_5, 0, NULL);
639 if (sc->xl_media & XL_MEDIAOPT_BNC) {
641 device_printf(dev, "found BNC\n");
642 ifmedia_add(ifm, IFM_ETHER|IFM_10_2, 0, NULL);
649 * The EEPROM is slow: give it time to come ready after issuing
653 xl_eeprom_wait(struct xl_softc *sc)
657 for (i = 0; i < 100; i++) {
658 if (CSR_READ_2(sc, XL_W0_EE_CMD) & XL_EE_BUSY)
665 if_printf(&sc->arpcom.ac_if, "eeprom failed to come ready\n");
673 * Read a sequence of words from the EEPROM. Note that ethernet address
674 * data is stored in the EEPROM in network byte order.
677 xl_read_eeprom(struct xl_softc *sc, caddr_t dest, int off, int cnt, int swap)
680 u_int16_t word = 0, *ptr;
681 #define EEPROM_5BIT_OFFSET(A) ((((A) << 2) & 0x7F00) | ((A) & 0x003F))
682 #define EEPROM_8BIT_OFFSET(A) ((A) & 0x003F)
684 * It's easy to accidentally overwrite the rom content!
685 * Note: the 3c575 uses 8bit EEPROM offsets.
689 if (xl_eeprom_wait(sc))
692 if (sc->xl_flags & XL_FLAG_EEPROM_OFFSET_30)
695 for (i = 0; i < cnt; i++) {
696 if (sc->xl_flags & XL_FLAG_8BITROM)
697 CSR_WRITE_2(sc, XL_W0_EE_CMD,
698 XL_EE_8BIT_READ | EEPROM_8BIT_OFFSET(off + i));
700 CSR_WRITE_2(sc, XL_W0_EE_CMD,
701 XL_EE_READ | EEPROM_5BIT_OFFSET(off + i));
702 err = xl_eeprom_wait(sc);
705 word = CSR_READ_2(sc, XL_W0_EE_DATA);
706 ptr = (u_int16_t *)(dest + (i * 2));
717 * NICs older than the 3c905B have only one multicast option, which
718 * is to enable reception of all multicast frames.
721 xl_setmulti(struct xl_softc *sc)
724 struct ifmultiaddr *ifma;
728 ifp = &sc->arpcom.ac_if;
731 rxfilt = CSR_READ_1(sc, XL_W5_RX_FILTER);
733 if (ifp->if_flags & IFF_ALLMULTI) {
734 rxfilt |= XL_RXFILTER_ALLMULTI;
735 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
739 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
743 rxfilt |= XL_RXFILTER_ALLMULTI;
745 rxfilt &= ~XL_RXFILTER_ALLMULTI;
747 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
753 * 3c905B adapters have a hash filter that we can program.
756 xl_setmulti_hash(struct xl_softc *sc)
760 struct ifmultiaddr *ifma;
764 ifp = &sc->arpcom.ac_if;
767 rxfilt = CSR_READ_1(sc, XL_W5_RX_FILTER);
769 if (ifp->if_flags & IFF_ALLMULTI) {
770 rxfilt |= XL_RXFILTER_ALLMULTI;
771 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
774 rxfilt &= ~XL_RXFILTER_ALLMULTI;
777 /* first, zot all the existing hash bits */
778 for (i = 0; i < XL_HASHFILT_SIZE; i++)
779 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_HASH|i);
781 /* now program new ones */
782 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
783 if (ifma->ifma_addr->sa_family != AF_LINK)
787 * Note: the 3c905B currently only supports a 64-bit
788 * hash table, which means we really only need 6 bits,
789 * but the manual indicates that future chip revisions
790 * will have a 256-bit hash table, hence the routine is
791 * set up to calculate 8 bits of position info in case
792 * we need it some day.
793 * Note II, The Sequel: _CURRENT_ versions of the 3c905B
794 * have a 256 bit hash table. This means we have to use
795 * all 8 bits regardless. On older cards, the upper 2
796 * bits will be ignored. Grrrr....
799 LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
800 ETHER_ADDR_LEN) & 0xff;
801 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_HASH|XL_HASH_SET|h);
806 rxfilt |= XL_RXFILTER_MULTIHASH;
808 rxfilt &= ~XL_RXFILTER_MULTIHASH;
810 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
816 xl_setcfg(struct xl_softc *sc)
821 icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG);
822 icfg &= ~XL_ICFG_CONNECTOR_MASK;
823 if (sc->xl_media & XL_MEDIAOPT_MII ||
824 sc->xl_media & XL_MEDIAOPT_BT4)
825 icfg |= (XL_XCVR_MII << XL_ICFG_CONNECTOR_BITS);
826 if (sc->xl_media & XL_MEDIAOPT_BTX)
827 icfg |= (XL_XCVR_AUTO << XL_ICFG_CONNECTOR_BITS);
829 CSR_WRITE_4(sc, XL_W3_INTERNAL_CFG, icfg);
830 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_STOP);
836 xl_setmode(struct xl_softc *sc, int media)
838 struct ifnet *ifp = &sc->arpcom.ac_if;
842 if_printf(ifp, "selecting ");
845 mediastat = CSR_READ_2(sc, XL_W4_MEDIA_STATUS);
847 icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG);
849 if (sc->xl_media & XL_MEDIAOPT_BT) {
850 if (IFM_SUBTYPE(media) == IFM_10_T) {
851 kprintf("10baseT transceiver, ");
852 sc->xl_xcvr = XL_XCVR_10BT;
853 icfg &= ~XL_ICFG_CONNECTOR_MASK;
854 icfg |= (XL_XCVR_10BT << XL_ICFG_CONNECTOR_BITS);
855 mediastat |= XL_MEDIASTAT_LINKBEAT|
856 XL_MEDIASTAT_JABGUARD;
857 mediastat &= ~XL_MEDIASTAT_SQEENB;
861 if (sc->xl_media & XL_MEDIAOPT_BFX) {
862 if (IFM_SUBTYPE(media) == IFM_100_FX) {
863 kprintf("100baseFX port, ");
864 sc->xl_xcvr = XL_XCVR_100BFX;
865 icfg &= ~XL_ICFG_CONNECTOR_MASK;
866 icfg |= (XL_XCVR_100BFX << XL_ICFG_CONNECTOR_BITS);
867 mediastat |= XL_MEDIASTAT_LINKBEAT;
868 mediastat &= ~XL_MEDIASTAT_SQEENB;
872 if (sc->xl_media & (XL_MEDIAOPT_AUI|XL_MEDIAOPT_10FL)) {
873 if (IFM_SUBTYPE(media) == IFM_10_5) {
874 kprintf("AUI port, ");
875 sc->xl_xcvr = XL_XCVR_AUI;
876 icfg &= ~XL_ICFG_CONNECTOR_MASK;
877 icfg |= (XL_XCVR_AUI << XL_ICFG_CONNECTOR_BITS);
878 mediastat &= ~(XL_MEDIASTAT_LINKBEAT|
879 XL_MEDIASTAT_JABGUARD);
880 mediastat |= ~XL_MEDIASTAT_SQEENB;
882 if (IFM_SUBTYPE(media) == IFM_10_FL) {
883 kprintf("10baseFL transceiver, ");
884 sc->xl_xcvr = XL_XCVR_AUI;
885 icfg &= ~XL_ICFG_CONNECTOR_MASK;
886 icfg |= (XL_XCVR_AUI << XL_ICFG_CONNECTOR_BITS);
887 mediastat &= ~(XL_MEDIASTAT_LINKBEAT|
888 XL_MEDIASTAT_JABGUARD);
889 mediastat |= ~XL_MEDIASTAT_SQEENB;
893 if (sc->xl_media & XL_MEDIAOPT_BNC) {
894 if (IFM_SUBTYPE(media) == IFM_10_2) {
895 kprintf("BNC port, ");
896 sc->xl_xcvr = XL_XCVR_COAX;
897 icfg &= ~XL_ICFG_CONNECTOR_MASK;
898 icfg |= (XL_XCVR_COAX << XL_ICFG_CONNECTOR_BITS);
899 mediastat &= ~(XL_MEDIASTAT_LINKBEAT|
900 XL_MEDIASTAT_JABGUARD|
901 XL_MEDIASTAT_SQEENB);
905 if ((media & IFM_GMASK) == IFM_FDX ||
906 IFM_SUBTYPE(media) == IFM_100_FX) {
907 kprintf("full duplex\n");
909 CSR_WRITE_1(sc, XL_W3_MAC_CTRL, XL_MACCTRL_DUPLEX);
911 kprintf("half duplex\n");
913 CSR_WRITE_1(sc, XL_W3_MAC_CTRL,
914 (CSR_READ_1(sc, XL_W3_MAC_CTRL) & ~XL_MACCTRL_DUPLEX));
917 if (IFM_SUBTYPE(media) == IFM_10_2)
918 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_START);
920 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_STOP);
921 CSR_WRITE_4(sc, XL_W3_INTERNAL_CFG, icfg);
923 CSR_WRITE_2(sc, XL_W4_MEDIA_STATUS, mediastat);
929 xl_reset(struct xl_softc *sc)
934 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RESET |
935 ((sc->xl_flags & XL_FLAG_WEIRDRESET) ?
936 XL_RESETOPT_DISADVFD:0));
939 * If we're using memory mapped register mode, pause briefly
940 * after issuing the reset command before trying to access any
941 * other registers. With my 3c575C cardbus card, failing to do
942 * this results in the system locking up while trying to poll
943 * the command busy bit in the status register.
945 if (sc->xl_flags & XL_FLAG_USE_MMIO)
948 for (i = 0; i < XL_TIMEOUT; i++) {
950 if (!(CSR_READ_2(sc, XL_STATUS) & XL_STAT_CMDBUSY))
955 if_printf(&sc->arpcom.ac_if, "reset didn't complete\n");
957 /* Reset TX and RX. */
958 /* Note: the RX reset takes an absurd amount of time
959 * on newer versions of the Tornado chips such as those
960 * on the 3c905CX and newer 3c908C cards. We wait an
961 * extra amount of time so that xl_wait() doesn't complain
962 * and annoy the users.
964 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_RESET);
967 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
970 if (sc->xl_flags & XL_FLAG_INVERT_LED_PWR ||
971 sc->xl_flags & XL_FLAG_INVERT_MII_PWR) {
973 CSR_WRITE_2(sc, XL_W2_RESET_OPTIONS, CSR_READ_2(sc,
975 | ((sc->xl_flags & XL_FLAG_INVERT_LED_PWR)?XL_RESETOPT_INVERT_LED:0)
976 | ((sc->xl_flags & XL_FLAG_INVERT_MII_PWR)?XL_RESETOPT_INVERT_MII:0)
980 /* Wait a little while for the chip to get its brains in order. */
986 * Probe for a 3Com Etherlink XL chip. Check the PCI vendor and device
987 * IDs against our list and return a device name if we find a match.
990 xl_probe(device_t dev)
995 vid = pci_get_vendor(dev);
996 did = pci_get_device(dev);
997 for (t = xl_devs; t->xl_name != NULL; t++) {
998 if (vid == t->xl_vid && did == t->xl_did) {
999 device_set_desc(dev, t->xl_name);
1007 * This routine is a kludge to work around possible hardware faults
1008 * or manufacturing defects that can cause the media options register
1009 * (or reset options register, as it's called for the first generation
1010 * 3c90x adapters) to return an incorrect result. I have encountered
1011 * one Dell Latitude laptop docking station with an integrated 3c905-TX
1012 * which doesn't have any of the 'mediaopt' bits set. This screws up
1013 * the attach routine pretty badly because it doesn't know what media
1014 * to look for. If we find ourselves in this predicament, this routine
1015 * will try to guess the media options values and warn the user of a
1016 * possible manufacturing defect with his adapter/system/whatever.
1019 xl_mediacheck(struct xl_softc *sc)
1021 struct ifnet *ifp = &sc->arpcom.ac_if;
1024 * If some of the media options bits are set, assume they are
1025 * correct. If not, try to figure it out down below.
1026 * XXX I should check for 10baseFL, but I don't have an adapter
1029 if (sc->xl_media & (XL_MEDIAOPT_MASK & ~XL_MEDIAOPT_VCO)) {
1031 * Check the XCVR value. If it's not in the normal range
1032 * of values, we need to fake it up here.
1034 if (sc->xl_xcvr <= XL_XCVR_AUTO)
1037 if_printf(ifp, "bogus xcvr value in EEPROM (%x)\n",
1040 "choosing new default based on card type\n");
1043 if (sc->xl_type == XL_TYPE_905B &&
1044 sc->xl_media & XL_MEDIAOPT_10FL)
1046 if_printf(ifp, "WARNING: no media options bits set in "
1047 "the media options register!!\n");
1048 if_printf(ifp, "this could be a manufacturing defect in "
1049 "your adapter or system\n");
1050 if_printf(ifp, "attempting to guess media type; you "
1051 "should probably consult your vendor\n");
1054 xl_choose_xcvr(sc, 1);
1058 xl_choose_xcvr(struct xl_softc *sc, int verbose)
1060 struct ifnet *ifp = &sc->arpcom.ac_if;
1064 * Read the device ID from the EEPROM.
1065 * This is what's loaded into the PCI device ID register, so it has
1066 * to be correct otherwise we wouldn't have gotten this far.
1068 xl_read_eeprom(sc, (caddr_t)&devid, XL_EE_PRODID, 1, 0);
1071 case TC_DEVICEID_BOOMERANG_10BT: /* 3c900-TPO */
1072 case TC_DEVICEID_KRAKATOA_10BT: /* 3c900B-TPO */
1073 sc->xl_media = XL_MEDIAOPT_BT;
1074 sc->xl_xcvr = XL_XCVR_10BT;
1076 if_printf(ifp, "guessing 10BaseT transceiver\n");
1078 case TC_DEVICEID_BOOMERANG_10BT_COMBO: /* 3c900-COMBO */
1079 case TC_DEVICEID_KRAKATOA_10BT_COMBO: /* 3c900B-COMBO */
1080 sc->xl_media = XL_MEDIAOPT_BT|XL_MEDIAOPT_BNC|XL_MEDIAOPT_AUI;
1081 sc->xl_xcvr = XL_XCVR_10BT;
1083 if_printf(ifp, "guessing COMBO (AUI/BNC/TP)\n");
1085 case TC_DEVICEID_KRAKATOA_10BT_TPC: /* 3c900B-TPC */
1086 sc->xl_media = XL_MEDIAOPT_BT|XL_MEDIAOPT_BNC;
1087 sc->xl_xcvr = XL_XCVR_10BT;
1089 if_printf(ifp, "guessing TPC (BNC/TP)\n");
1091 case TC_DEVICEID_CYCLONE_10FL: /* 3c900B-FL */
1092 sc->xl_media = XL_MEDIAOPT_10FL;
1093 sc->xl_xcvr = XL_XCVR_AUI;
1095 if_printf(ifp, "guessing 10baseFL\n");
1097 case TC_DEVICEID_BOOMERANG_10_100BT: /* 3c905-TX */
1098 case TC_DEVICEID_HURRICANE_555: /* 3c555 */
1099 case TC_DEVICEID_HURRICANE_556: /* 3c556 */
1100 case TC_DEVICEID_HURRICANE_556B: /* 3c556B */
1101 case TC_DEVICEID_HURRICANE_575A: /* 3c575TX */
1102 case TC_DEVICEID_HURRICANE_575B: /* 3c575B */
1103 case TC_DEVICEID_HURRICANE_575C: /* 3c575C */
1104 case TC_DEVICEID_HURRICANE_656: /* 3c656 */
1105 case TC_DEVICEID_HURRICANE_656B: /* 3c656B */
1106 case TC_DEVICEID_TORNADO_656C: /* 3c656C */
1107 case TC_DEVICEID_TORNADO_10_100BT_920B: /* 3c920B-EMB */
1108 sc->xl_media = XL_MEDIAOPT_MII;
1109 sc->xl_xcvr = XL_XCVR_MII;
1111 if_printf(ifp, "guessing MII\n");
1113 case TC_DEVICEID_BOOMERANG_100BT4: /* 3c905-T4 */
1114 case TC_DEVICEID_CYCLONE_10_100BT4: /* 3c905B-T4 */
1115 sc->xl_media = XL_MEDIAOPT_BT4;
1116 sc->xl_xcvr = XL_XCVR_MII;
1118 if_printf(ifp, "guessing 100BaseT4/MII\n");
1120 case TC_DEVICEID_HURRICANE_10_100BT: /* 3c905B-TX */
1121 case TC_DEVICEID_HURRICANE_10_100BT_SERV:/*3c980-TX */
1122 case TC_DEVICEID_TORNADO_10_100BT_SERV: /* 3c980C-TX */
1123 case TC_DEVICEID_HURRICANE_SOHO100TX: /* 3cSOHO100-TX */
1124 case TC_DEVICEID_TORNADO_10_100BT: /* 3c905C-TX */
1125 case TC_DEVICEID_TORNADO_HOMECONNECT: /* 3c450-TX */
1126 sc->xl_media = XL_MEDIAOPT_BTX;
1127 sc->xl_xcvr = XL_XCVR_AUTO;
1129 if_printf(ifp, "guessing 10/100 internal\n");
1131 case TC_DEVICEID_CYCLONE_10_100_COMBO: /* 3c905B-COMBO */
1132 sc->xl_media = XL_MEDIAOPT_BTX|XL_MEDIAOPT_BNC|XL_MEDIAOPT_AUI;
1133 sc->xl_xcvr = XL_XCVR_AUTO;
1135 if_printf(ifp, "guessing 10/100 plus BNC/AUI\n");
1139 "unknown device ID: %x -- defaulting to 10baseT\n", devid);
1140 sc->xl_media = XL_MEDIAOPT_BT;
1148 * Attach the interface. Allocate softc structures, do ifmedia
1149 * setup and ethernet/BPF attach.
1152 xl_attach(device_t dev)
1154 u_char eaddr[ETHER_ADDR_LEN];
1156 struct xl_softc *sc;
1158 int media = IFM_ETHER|IFM_100_TX|IFM_FDX;
1159 int error = 0, rid, res;
1162 sc = device_get_softc(dev);
1164 ifmedia_init(&sc->ifmedia, 0, xl_ifmedia_upd, xl_ifmedia_sts);
1166 did = pci_get_device(dev);
1169 if (did == TC_DEVICEID_HURRICANE_555)
1170 sc->xl_flags |= XL_FLAG_EEPROM_OFFSET_30 | XL_FLAG_PHYOK;
1171 if (did == TC_DEVICEID_HURRICANE_556 ||
1172 did == TC_DEVICEID_HURRICANE_556B)
1173 sc->xl_flags |= XL_FLAG_FUNCREG | XL_FLAG_PHYOK |
1174 XL_FLAG_EEPROM_OFFSET_30 | XL_FLAG_WEIRDRESET |
1175 XL_FLAG_INVERT_LED_PWR | XL_FLAG_INVERT_MII_PWR;
1176 if (did == TC_DEVICEID_HURRICANE_555 ||
1177 did == TC_DEVICEID_HURRICANE_556)
1178 sc->xl_flags |= XL_FLAG_8BITROM;
1179 if (did == TC_DEVICEID_HURRICANE_556B)
1180 sc->xl_flags |= XL_FLAG_NO_XCVR_PWR;
1181 if (did == TC_DEVICEID_HURRICANE_575B ||
1182 did == TC_DEVICEID_HURRICANE_575C ||
1183 did == TC_DEVICEID_HURRICANE_656B ||
1184 did == TC_DEVICEID_TORNADO_656C)
1185 sc->xl_flags |= XL_FLAG_FUNCREG;
1186 if (did == TC_DEVICEID_HURRICANE_575A ||
1187 did == TC_DEVICEID_HURRICANE_575B ||
1188 did == TC_DEVICEID_HURRICANE_575C ||
1189 did == TC_DEVICEID_HURRICANE_656B ||
1190 did == TC_DEVICEID_TORNADO_656C)
1191 sc->xl_flags |= XL_FLAG_PHYOK | XL_FLAG_EEPROM_OFFSET_30 |
1193 if (did == TC_DEVICEID_HURRICANE_656)
1194 sc->xl_flags |= XL_FLAG_FUNCREG | XL_FLAG_PHYOK;
1195 if (did == TC_DEVICEID_HURRICANE_575B)
1196 sc->xl_flags |= XL_FLAG_INVERT_LED_PWR;
1197 if (did == TC_DEVICEID_HURRICANE_575C)
1198 sc->xl_flags |= XL_FLAG_INVERT_MII_PWR;
1199 if (did == TC_DEVICEID_TORNADO_656C)
1200 sc->xl_flags |= XL_FLAG_INVERT_MII_PWR;
1201 if (did == TC_DEVICEID_HURRICANE_656 ||
1202 did == TC_DEVICEID_HURRICANE_656B)
1203 sc->xl_flags |= XL_FLAG_INVERT_MII_PWR |
1204 XL_FLAG_INVERT_LED_PWR;
1205 if (did == TC_DEVICEID_TORNADO_10_100BT_920B)
1206 sc->xl_flags |= XL_FLAG_PHYOK;
1207 #ifndef BURN_BRIDGES
1209 * If this is a 3c905B, we have to check one extra thing.
1210 * The 905B supports power management and may be placed in
1211 * a low-power mode (D3 mode), typically by certain operating
1212 * systems which shall not be named. The PCI BIOS is supposed
1213 * to reset the NIC and bring it out of low-power mode, but
1214 * some do not. Consequently, we have to see if this chip
1215 * supports power management, and if so, make sure it's not
1216 * in low-power mode. If power management is available, the
1217 * capid byte will be 0x01.
1219 * I _think_ that what actually happens is that the chip
1220 * loses its PCI configuration during the transition from
1221 * D3 back to D0; this means that it should be possible for
1222 * us to save the PCI iobase, membase and IRQ, put the chip
1223 * back in the D0 state, then restore the PCI config ourselves.
1226 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
1227 u_int32_t iobase, membase, irq;
1229 /* Save important PCI config data. */
1230 iobase = pci_read_config(dev, XL_PCI_LOIO, 4);
1231 membase = pci_read_config(dev, XL_PCI_LOMEM, 4);
1232 irq = pci_read_config(dev, XL_PCI_INTLINE, 4);
1234 /* Reset the power state. */
1235 device_printf(dev, "chip is in D%d power mode "
1236 "-- setting to D0\n", pci_get_powerstate(dev));
1238 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
1240 /* Restore PCI config data. */
1241 pci_write_config(dev, XL_PCI_LOIO, iobase, 4);
1242 pci_write_config(dev, XL_PCI_LOMEM, membase, 4);
1243 pci_write_config(dev, XL_PCI_INTLINE, irq, 4);
1247 * Map control/status registers.
1249 pci_enable_busmaster(dev);
1252 res = SYS_RES_MEMORY;
1255 sc->xl_res = bus_alloc_resource_any(dev, res, &rid, RF_ACTIVE);
1258 if (sc->xl_res != NULL) {
1259 sc->xl_flags |= XL_FLAG_USE_MMIO;
1261 device_printf(dev, "using memory mapped I/O\n");
1264 res = SYS_RES_IOPORT;
1265 sc->xl_res = bus_alloc_resource_any(dev, res, &rid, RF_ACTIVE);
1266 if (sc->xl_res == NULL) {
1267 device_printf(dev, "couldn't map ports/memory\n");
1272 device_printf(dev, "using port I/O\n");
1275 sc->xl_btag = rman_get_bustag(sc->xl_res);
1276 sc->xl_bhandle = rman_get_bushandle(sc->xl_res);
1278 if (sc->xl_flags & XL_FLAG_FUNCREG) {
1279 rid = XL_PCI_FUNCMEM;
1280 sc->xl_fres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1283 if (sc->xl_fres == NULL) {
1284 device_printf(dev, "couldn't map funcreg memory\n");
1289 sc->xl_ftag = rman_get_bustag(sc->xl_fres);
1290 sc->xl_fhandle = rman_get_bushandle(sc->xl_fres);
1293 /* Allocate interrupt */
1295 sc->xl_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
1296 RF_SHAREABLE | RF_ACTIVE);
1297 if (sc->xl_irq == NULL) {
1298 device_printf(dev, "couldn't map interrupt\n");
1303 ifp = &sc->arpcom.ac_if;
1304 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
1306 /* Reset the adapter. */
1310 * Get station address from the EEPROM.
1312 if (xl_read_eeprom(sc, (caddr_t)&eaddr, XL_EE_OEM_ADR0, 3, 1)) {
1313 device_printf(dev, "failed to read station address\n");
1318 callout_init(&sc->xl_stat_timer);
1320 error = xl_dma_alloc(dev);
1325 * Figure out the card type. 3c905B adapters have the
1326 * 'supportsNoTxLength' bit set in the capabilities
1327 * word in the EEPROM.
1328 * Note: my 3c575C cardbus card lies. It returns a value
1329 * of 0x1578 for its capabilities word, which is somewhat
1330 * nonsensical. Another way to distinguish a 3c90x chip
1331 * from a 3c90xB/C chip is to check for the 'supportsLargePackets'
1332 * bit. This will only be set for 3c90x boomerage chips.
1334 xl_read_eeprom(sc, (caddr_t)&sc->xl_caps, XL_EE_CAPS, 1, 0);
1335 if (sc->xl_caps & XL_CAPS_NO_TXLENGTH ||
1336 !(sc->xl_caps & XL_CAPS_LARGE_PKTS))
1337 sc->xl_type = XL_TYPE_905B;
1339 sc->xl_type = XL_TYPE_90X;
1341 device_printf(dev, "type %s\n",
1342 sc->xl_type == XL_TYPE_905B ? "90XB" : "90X");
1346 ifp->if_mtu = ETHERMTU;
1347 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
1348 ifp->if_ioctl = xl_ioctl;
1349 if (sc->xl_type == XL_TYPE_905B) {
1350 ifp->if_start = xl_start_90xB;
1351 ifp->if_capabilities |= IFCAP_HWCSUM | IFCAP_VLAN_MTU;
1353 ifp->if_start = xl_start;
1355 ifp->if_watchdog = xl_watchdog;
1356 ifp->if_init = xl_init;
1357 #ifdef IFPOLL_ENABLE
1358 ifp->if_npoll = xl_npoll;
1360 ifp->if_baudrate = 10000000;
1361 ifq_set_maxlen(&ifp->if_snd, XL_TX_LIST_CNT - 1);
1362 ifq_set_ready(&ifp->if_snd);
1364 * NOTE: Hardware checksum features disabled by default.
1365 * This seems to corrupt tx packet data one out of a
1366 * million packets or so and then generates a good checksum
1367 * so the receiver doesn't know the packet is bad
1369 ifp->if_capenable = ifp->if_capabilities & ~IFCAP_HWCSUM;
1370 if (ifp->if_capenable & IFCAP_TXCSUM)
1371 ifp->if_hwassist = XL905B_CSUM_FEATURES;
1374 * Now we have to see what sort of media we have.
1375 * This includes probing for an MII interace and a
1379 sc->xl_media = CSR_READ_2(sc, XL_W3_MEDIA_OPT);
1381 if_printf(ifp, "media options word: %x\n", sc->xl_media);
1383 xl_read_eeprom(sc, (char *)&xcvr, XL_EE_ICFG_0, 2, 0);
1384 sc->xl_xcvr = xcvr[0] | xcvr[1] << 16;
1385 sc->xl_xcvr &= XL_ICFG_CONNECTOR_MASK;
1386 sc->xl_xcvr >>= XL_ICFG_CONNECTOR_BITS;
1390 if (sc->xl_media & XL_MEDIAOPT_MII || sc->xl_media & XL_MEDIAOPT_BTX
1391 || sc->xl_media & XL_MEDIAOPT_BT4) {
1393 if_printf(ifp, "found MII/AUTO\n");
1396 error = mii_phy_probe(dev, &sc->xl_miibus,
1397 xl_ifmedia_upd, xl_ifmedia_sts);
1399 if_printf(ifp, "no PHY found!\n");
1407 * Sanity check. If the user has selected "auto" and this isn't
1408 * a 10/100 card of some kind, we need to force the transceiver
1409 * type to something sane.
1411 if (sc->xl_xcvr == XL_XCVR_AUTO)
1412 xl_choose_xcvr(sc, bootverbose);
1417 if (sc->xl_media & XL_MEDIAOPT_BT) {
1419 if_printf(ifp, "found 10baseT\n");
1420 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
1421 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
1422 if (sc->xl_caps & XL_CAPS_FULL_DUPLEX)
1423 ifmedia_add(&sc->ifmedia,
1424 IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
1427 if (sc->xl_media & (XL_MEDIAOPT_AUI|XL_MEDIAOPT_10FL)) {
1429 * Check for a 10baseFL board in disguise.
1431 if (sc->xl_type == XL_TYPE_905B &&
1432 sc->xl_media == XL_MEDIAOPT_10FL) {
1434 if_printf(ifp, "found 10baseFL\n");
1435 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_FL, 0, NULL);
1436 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_FL|IFM_HDX,
1438 if (sc->xl_caps & XL_CAPS_FULL_DUPLEX)
1439 ifmedia_add(&sc->ifmedia,
1440 IFM_ETHER|IFM_10_FL|IFM_FDX, 0, NULL);
1443 if_printf(ifp, "found AUI\n");
1444 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_5, 0, NULL);
1448 if (sc->xl_media & XL_MEDIAOPT_BNC) {
1450 if_printf(ifp, "found BNC\n");
1451 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_2, 0, NULL);
1454 if (sc->xl_media & XL_MEDIAOPT_BFX) {
1456 if_printf(ifp, "found 100baseFX\n");
1457 ifp->if_baudrate = 100000000;
1458 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_FX, 0, NULL);
1461 /* Choose a default media. */
1462 switch(sc->xl_xcvr) {
1464 media = IFM_ETHER|IFM_10_T;
1465 xl_setmode(sc, media);
1468 if (sc->xl_type == XL_TYPE_905B &&
1469 sc->xl_media == XL_MEDIAOPT_10FL) {
1470 media = IFM_ETHER|IFM_10_FL;
1471 xl_setmode(sc, media);
1473 media = IFM_ETHER|IFM_10_5;
1474 xl_setmode(sc, media);
1478 media = IFM_ETHER|IFM_10_2;
1479 xl_setmode(sc, media);
1482 case XL_XCVR_100BTX:
1484 /* Chosen by miibus */
1486 case XL_XCVR_100BFX:
1487 media = IFM_ETHER|IFM_100_FX;
1490 if_printf(ifp, "unknown XCVR type: %d\n", sc->xl_xcvr);
1492 * This will probably be wrong, but it prevents
1493 * the ifmedia code from panicking.
1495 media = IFM_ETHER|IFM_10_T;
1499 if (sc->xl_miibus == NULL)
1500 ifmedia_set(&sc->ifmedia, media);
1504 if (sc->xl_flags & XL_FLAG_NO_XCVR_PWR) {
1506 CSR_WRITE_2(sc, XL_W0_MFG_ID, XL_NO_XCVR_PWR_MAGICBITS);
1510 * Call MI attach routine.
1512 ether_ifattach(ifp, eaddr, NULL);
1514 #ifdef IFPOLL_ENABLE
1515 ifpoll_compat_setup(&sc->xl_npoll, NULL, NULL, device_get_unit(dev),
1516 ifp->if_serializer);
1520 * Tell the upper layer(s) we support long frames.
1522 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
1524 /* Hook interrupt last to avoid having to lock softc */
1525 error = bus_setup_intr(dev, sc->xl_irq, INTR_MPSAFE,
1526 xl_intr, sc, &sc->xl_intrhand,
1527 ifp->if_serializer);
1529 if_printf(ifp, "couldn't set up irq\n");
1530 ether_ifdetach(ifp);
1534 ifp->if_cpuid = rman_get_cpuid(sc->xl_irq);
1535 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
1545 * Shutdown hardware and free up resources. This can be called any
1546 * time after the mutex has been initialized. It is called in both
1547 * the error case in attach and the normal detach case so it needs
1548 * to be careful about only freeing resources that have actually been
1552 xl_detach(device_t dev)
1554 struct xl_softc *sc;
1558 sc = device_get_softc(dev);
1559 ifp = &sc->arpcom.ac_if;
1561 if (sc->xl_flags & XL_FLAG_USE_MMIO) {
1563 res = SYS_RES_MEMORY;
1566 res = SYS_RES_IOPORT;
1569 if (device_is_attached(dev)) {
1570 lwkt_serialize_enter(ifp->if_serializer);
1573 bus_teardown_intr(dev, sc->xl_irq, sc->xl_intrhand);
1574 lwkt_serialize_exit(ifp->if_serializer);
1576 ether_ifdetach(ifp);
1580 device_delete_child(dev, sc->xl_miibus);
1581 bus_generic_detach(dev);
1582 ifmedia_removeall(&sc->ifmedia);
1585 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->xl_irq);
1586 if (sc->xl_fres != NULL)
1587 bus_release_resource(dev, SYS_RES_MEMORY,
1588 XL_PCI_FUNCMEM, sc->xl_fres);
1590 bus_release_resource(dev, res, rid, sc->xl_res);
1598 xl_dma_alloc(device_t dev)
1600 struct xl_softc *sc;
1601 struct xl_chain_data *cd;
1602 struct xl_list_data *ld;
1606 sc = device_get_softc(dev);
1611 * Allocate the parent bus DMA tag appropriate for PCI.
1613 error = bus_dma_tag_create(NULL, 1, 0,
1614 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
1616 BUS_SPACE_MAXSIZE_32BIT, 0,
1617 BUS_SPACE_MAXSIZE_32BIT,
1618 0, &sc->xl_parent_tag);
1620 device_printf(dev, "could not allocate parent dma tag\n");
1625 * Now allocate a tag for the DMA descriptor lists and a chunk
1626 * of DMA-able memory based on the tag. Also obtain the DMA
1627 * addresses of the RX and TX ring, which we'll need later.
1628 * All of our lists are allocated as a contiguous block
1631 error = bus_dmamem_coherent(sc->xl_parent_tag, XL_LIST_ALIGN, 0,
1632 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
1633 XL_RX_LIST_SZ, BUS_DMA_WAITOK, &dmem);
1635 device_printf(dev, "failed to allocate rx list\n");
1638 ld->xl_rx_tag = dmem.dmem_tag;
1639 ld->xl_rx_dmamap = dmem.dmem_map;
1640 ld->xl_rx_list = dmem.dmem_addr;
1641 ld->xl_rx_dmaaddr = dmem.dmem_busaddr;
1643 error = bus_dmamem_coherent(sc->xl_parent_tag, XL_LIST_ALIGN, 0,
1644 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
1645 XL_TX_LIST_SZ, BUS_DMA_WAITOK, &dmem);
1647 device_printf(dev, "failed to allocate tx list\n");
1650 ld->xl_tx_tag = dmem.dmem_tag;
1651 ld->xl_tx_dmamap = dmem.dmem_map;
1652 ld->xl_tx_list = dmem.dmem_addr;
1653 ld->xl_tx_dmaaddr = dmem.dmem_busaddr;
1656 * Allocate a DMA tag for the mapping of mbufs.
1658 error = bus_dma_tag_create(sc->xl_parent_tag, 1, 0,
1659 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
1661 MCLBYTES, 1, MCLBYTES,
1662 BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW,
1665 device_printf(dev, "failed to allocate RX mbuf dma tag\n");
1670 * Allocate a spare DMA map for the RX ring.
1672 error = bus_dmamap_create(sc->xl_rx_mtag, BUS_DMA_WAITOK,
1675 device_printf(dev, "failed to create RX mbuf tmp dma map\n");
1676 bus_dma_tag_destroy(sc->xl_rx_mtag);
1677 sc->xl_rx_mtag = NULL;
1681 for (i = 0; i < XL_RX_LIST_CNT; i++) {
1682 error = bus_dmamap_create(sc->xl_rx_mtag, BUS_DMA_WAITOK,
1683 &cd->xl_rx_chain[i].xl_map);
1685 device_printf(dev, "failed to create %dth "
1686 "rx descriptor dma map!\n", i);
1689 cd->xl_rx_chain[i].xl_ptr = &ld->xl_rx_list[i];
1692 error = bus_dma_tag_create(sc->xl_parent_tag, 1, 0,
1693 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
1695 MCLBYTES, XL_MAXFRAGS, MCLBYTES,
1696 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
1699 device_printf(dev, "failed to allocate TX mbuf dma tag\n");
1703 for (i = 0; i < XL_TX_LIST_CNT; i++) {
1704 error = bus_dmamap_create(sc->xl_tx_mtag, BUS_DMA_WAITOK,
1705 &cd->xl_tx_chain[i].xl_map);
1707 device_printf(dev, "failed to create %dth "
1708 "tx descriptor dma map!\n", i);
1711 cd->xl_tx_chain[i].xl_ptr = &ld->xl_tx_list[i];
1717 xl_dma_free(device_t dev)
1719 struct xl_softc *sc;
1720 struct xl_chain_data *cd;
1721 struct xl_list_data *ld;
1724 sc = device_get_softc(dev);
1728 for (i = 0; i < XL_RX_LIST_CNT; ++i) {
1729 if (cd->xl_rx_chain[i].xl_ptr != NULL) {
1730 if (cd->xl_rx_chain[i].xl_mbuf != NULL) {
1731 bus_dmamap_unload(sc->xl_rx_mtag,
1732 cd->xl_rx_chain[i].xl_map);
1733 m_freem(cd->xl_rx_chain[i].xl_mbuf);
1735 bus_dmamap_destroy(sc->xl_rx_mtag,
1736 cd->xl_rx_chain[i].xl_map);
1740 for (i = 0; i < XL_TX_LIST_CNT; ++i) {
1741 if (cd->xl_tx_chain[i].xl_ptr != NULL) {
1742 if (cd->xl_tx_chain[i].xl_mbuf != NULL) {
1743 bus_dmamap_unload(sc->xl_tx_mtag,
1744 cd->xl_tx_chain[i].xl_map);
1745 m_freem(cd->xl_tx_chain[i].xl_mbuf);
1747 bus_dmamap_destroy(sc->xl_tx_mtag,
1748 cd->xl_tx_chain[i].xl_map);
1752 if (ld->xl_rx_tag) {
1753 bus_dmamap_unload(ld->xl_rx_tag, ld->xl_rx_dmamap);
1754 bus_dmamem_free(ld->xl_rx_tag, ld->xl_rx_list,
1756 bus_dma_tag_destroy(ld->xl_rx_tag);
1759 if (ld->xl_tx_tag) {
1760 bus_dmamap_unload(ld->xl_tx_tag, ld->xl_tx_dmamap);
1761 bus_dmamem_free(ld->xl_tx_tag, ld->xl_tx_list,
1763 bus_dma_tag_destroy(ld->xl_tx_tag);
1766 if (sc->xl_rx_mtag) {
1767 bus_dmamap_destroy(sc->xl_rx_mtag, sc->xl_tmpmap);
1768 bus_dma_tag_destroy(sc->xl_rx_mtag);
1771 bus_dma_tag_destroy(sc->xl_tx_mtag);
1773 if (sc->xl_parent_tag)
1774 bus_dma_tag_destroy(sc->xl_parent_tag);
1778 * Initialize the transmit descriptors.
1781 xl_list_tx_init(struct xl_softc *sc)
1783 struct xl_chain_data *cd;
1784 struct xl_list_data *ld;
1789 for (i = 0; i < XL_TX_LIST_CNT; i++) {
1790 cd->xl_tx_chain[i].xl_phys = ld->xl_tx_dmaaddr +
1791 i * sizeof(struct xl_list);
1792 if (i == (XL_TX_LIST_CNT - 1))
1793 cd->xl_tx_chain[i].xl_next = NULL;
1795 cd->xl_tx_chain[i].xl_next = &cd->xl_tx_chain[i + 1];
1798 cd->xl_tx_free = &cd->xl_tx_chain[0];
1799 cd->xl_tx_tail = cd->xl_tx_head = NULL;
1803 * Initialize the transmit descriptors.
1806 xl_list_tx_init_90xB(struct xl_softc *sc)
1808 struct xl_chain_data *cd;
1809 struct xl_list_data *ld;
1814 for (i = 0; i < XL_TX_LIST_CNT; i++) {
1815 cd->xl_tx_chain[i].xl_phys = ld->xl_tx_dmaaddr +
1816 i * sizeof(struct xl_list);
1817 if (i == (XL_TX_LIST_CNT - 1))
1818 cd->xl_tx_chain[i].xl_next = &cd->xl_tx_chain[0];
1820 cd->xl_tx_chain[i].xl_next = &cd->xl_tx_chain[i + 1];
1822 cd->xl_tx_chain[i].xl_prev =
1823 &cd->xl_tx_chain[XL_TX_LIST_CNT - 1];
1825 cd->xl_tx_chain[i].xl_prev =
1826 &cd->xl_tx_chain[i - 1];
1830 ld->xl_tx_list[0].xl_status = htole32(XL_TXSTAT_EMPTY);
1838 * Initialize the RX descriptors and allocate mbufs for them. Note that
1839 * we arrange the descriptors in a closed ring, so that the last descriptor
1840 * points back to the first.
1843 xl_list_rx_init(struct xl_softc *sc)
1845 struct xl_chain_data *cd;
1846 struct xl_list_data *ld;
1853 for (i = 0; i < XL_RX_LIST_CNT; i++) {
1854 error = xl_newbuf(sc, &cd->xl_rx_chain[i], 1);
1857 if (i == (XL_RX_LIST_CNT - 1))
1861 nextptr = ld->xl_rx_dmaaddr +
1862 next * sizeof(struct xl_list_onefrag);
1863 cd->xl_rx_chain[i].xl_next = &cd->xl_rx_chain[next];
1864 ld->xl_rx_list[i].xl_next = htole32(nextptr);
1867 cd->xl_rx_head = &cd->xl_rx_chain[0];
1873 * Initialize an RX descriptor and attach an MBUF cluster.
1874 * If we fail to do so, we need to leave the old mbuf and
1875 * the old DMA map untouched so that it can be reused.
1878 xl_newbuf(struct xl_softc *sc, struct xl_chain_onefrag *c, int init)
1883 bus_dma_segment_t seg;
1885 m_new = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
1889 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1891 /* Force longword alignment for packet payload. */
1892 m_adj(m_new, ETHER_ALIGN);
1894 error = bus_dmamap_load_mbuf_segment(sc->xl_rx_mtag, sc->xl_tmpmap,
1895 m_new, &seg, 1, &nsegs, BUS_DMA_NOWAIT);
1899 if_printf(&sc->arpcom.ac_if,
1900 "can't map mbuf (error %d)\n", error);
1905 if (c->xl_mbuf != NULL) {
1906 bus_dmamap_sync(sc->xl_rx_mtag, c->xl_map,
1907 BUS_DMASYNC_POSTREAD);
1908 bus_dmamap_unload(sc->xl_rx_mtag, c->xl_map);
1912 c->xl_map = sc->xl_tmpmap;
1913 sc->xl_tmpmap = map;
1916 c->xl_ptr->xl_frag.xl_len = htole32(seg.ds_len | XL_LAST_FRAG);
1917 c->xl_ptr->xl_frag.xl_addr = htole32(seg.ds_addr);
1918 c->xl_ptr->xl_status = 0;
1924 xl_rx_resync(struct xl_softc *sc)
1926 struct xl_chain_onefrag *pos;
1929 pos = sc->xl_cdata.xl_rx_head;
1931 for (i = 0; i < XL_RX_LIST_CNT; i++) {
1932 if (pos->xl_ptr->xl_status)
1937 if (i == XL_RX_LIST_CNT)
1940 sc->xl_cdata.xl_rx_head = pos;
1946 * A frame has been uploaded: pass the resulting mbuf chain up to
1947 * the higher level protocols.
1950 xl_rxeof(struct xl_softc *sc, int count)
1954 struct xl_chain_onefrag *cur_rx;
1958 ifp = &sc->arpcom.ac_if;
1960 while((rxstat = le32toh(sc->xl_cdata.xl_rx_head->xl_ptr->xl_status))) {
1961 #ifdef IFPOLL_ENABLE
1962 if (count >= 0 && count-- == 0)
1965 cur_rx = sc->xl_cdata.xl_rx_head;
1966 sc->xl_cdata.xl_rx_head = cur_rx->xl_next;
1967 total_len = rxstat & XL_RXSTAT_LENMASK;
1970 * Since we have told the chip to allow large frames,
1971 * we need to trap giant frame errors in software. We allow
1972 * a little more than the normal frame size to account for
1973 * frames with VLAN tags.
1975 if (total_len > XL_MAX_FRAMELEN)
1976 rxstat |= (XL_RXSTAT_UP_ERROR|XL_RXSTAT_OVERSIZE);
1979 * If an error occurs, update stats, clear the
1980 * status word and leave the mbuf cluster in place:
1981 * it should simply get re-used next time this descriptor
1982 * comes up in the ring.
1984 if (rxstat & XL_RXSTAT_UP_ERROR) {
1986 cur_rx->xl_ptr->xl_status = 0;
1991 * If the error bit was not set, the upload complete
1992 * bit should be set which means we have a valid packet.
1993 * If not, something truly strange has happened.
1995 if (!(rxstat & XL_RXSTAT_UP_CMPLT)) {
1997 "bad receive status -- packet dropped\n");
1999 cur_rx->xl_ptr->xl_status = 0;
2003 /* No errors; receive the packet. */
2004 m = cur_rx->xl_mbuf;
2007 * Try to conjure up a new mbuf cluster. If that
2008 * fails, it means we have an out of memory condition and
2009 * should leave the buffer in place and continue. This will
2010 * result in a lost packet, but there's little else we
2011 * can do in this situation.
2013 if (xl_newbuf(sc, cur_rx, 0)) {
2015 cur_rx->xl_ptr->xl_status = 0;
2020 m->m_pkthdr.rcvif = ifp;
2021 m->m_pkthdr.len = m->m_len = total_len;
2023 if (ifp->if_capenable & IFCAP_RXCSUM) {
2024 /* Do IP checksum checking. */
2025 if (rxstat & XL_RXSTAT_IPCKOK)
2026 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2027 if (!(rxstat & XL_RXSTAT_IPCKERR))
2028 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2029 if ((rxstat & XL_RXSTAT_TCPCOK &&
2030 !(rxstat & XL_RXSTAT_TCPCKERR)) ||
2031 (rxstat & XL_RXSTAT_UDPCKOK &&
2032 !(rxstat & XL_RXSTAT_UDPCKERR))) {
2033 m->m_pkthdr.csum_flags |=
2034 CSUM_DATA_VALID|CSUM_PSEUDO_HDR|
2035 CSUM_FRAG_NOT_CHECKED;
2036 m->m_pkthdr.csum_data = 0xffff;
2040 ifp->if_input(ifp, m);
2043 if (sc->xl_type != XL_TYPE_905B) {
2045 * Handle the 'end of channel' condition. When the upload
2046 * engine hits the end of the RX ring, it will stall. This
2047 * is our cue to flush the RX ring, reload the uplist pointer
2048 * register and unstall the engine.
2049 * XXX This is actually a little goofy. With the ThunderLAN
2050 * chip, you get an interrupt when the receiver hits the end
2051 * of the receive ring, which tells you exactly when you
2052 * you need to reload the ring pointer. Here we have to
2053 * fake it. I'm mad at myself for not being clever enough
2054 * to avoid the use of a goto here.
2056 if (CSR_READ_4(sc, XL_UPLIST_PTR) == 0 ||
2057 CSR_READ_4(sc, XL_UPLIST_STATUS) & XL_PKTSTAT_UP_STALLED) {
2058 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_UP_STALL);
2060 CSR_WRITE_4(sc, XL_UPLIST_PTR,
2061 sc->xl_ldata.xl_rx_dmaaddr);
2062 sc->xl_cdata.xl_rx_head = &sc->xl_cdata.xl_rx_chain[0];
2063 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_UP_UNSTALL);
2070 * A frame was downloaded to the chip. It's safe for us to clean up
2074 xl_txeof(struct xl_softc *sc)
2076 struct xl_chain *cur_tx;
2079 ifp = &sc->arpcom.ac_if;
2081 /* Clear the timeout timer. */
2085 * Go through our tx list and free mbufs for those
2086 * frames that have been uploaded. Note: the 3c905B
2087 * sets a special bit in the status word to let us
2088 * know that a frame has been downloaded, but the
2089 * original 3c900/3c905 adapters don't do that.
2090 * Consequently, we have to use a different test if
2091 * xl_type != XL_TYPE_905B.
2093 while(sc->xl_cdata.xl_tx_head != NULL) {
2094 cur_tx = sc->xl_cdata.xl_tx_head;
2096 if (CSR_READ_4(sc, XL_DOWNLIST_PTR))
2099 sc->xl_cdata.xl_tx_head = cur_tx->xl_next;
2100 bus_dmamap_unload(sc->xl_tx_mtag, cur_tx->xl_map);
2101 m_freem(cur_tx->xl_mbuf);
2102 cur_tx->xl_mbuf = NULL;
2105 cur_tx->xl_next = sc->xl_cdata.xl_tx_free;
2106 sc->xl_cdata.xl_tx_free = cur_tx;
2109 if (sc->xl_cdata.xl_tx_head == NULL) {
2110 ifq_clr_oactive(&ifp->if_snd);
2111 sc->xl_cdata.xl_tx_tail = NULL;
2113 if (CSR_READ_4(sc, XL_DMACTL) & XL_DMACTL_DOWN_STALLED ||
2114 !CSR_READ_4(sc, XL_DOWNLIST_PTR)) {
2115 CSR_WRITE_4(sc, XL_DOWNLIST_PTR,
2116 sc->xl_cdata.xl_tx_head->xl_phys);
2117 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2125 xl_txeof_90xB(struct xl_softc *sc)
2127 struct xl_chain *cur_tx = NULL;
2131 ifp = &sc->arpcom.ac_if;
2133 idx = sc->xl_cdata.xl_tx_cons;
2134 while(idx != sc->xl_cdata.xl_tx_prod) {
2136 cur_tx = &sc->xl_cdata.xl_tx_chain[idx];
2138 if (!(le32toh(cur_tx->xl_ptr->xl_status) &
2139 XL_TXSTAT_DL_COMPLETE))
2142 if (cur_tx->xl_mbuf != NULL) {
2143 bus_dmamap_unload(sc->xl_tx_mtag, cur_tx->xl_map);
2144 m_freem(cur_tx->xl_mbuf);
2145 cur_tx->xl_mbuf = NULL;
2150 sc->xl_cdata.xl_tx_cnt--;
2151 XL_INC(idx, XL_TX_LIST_CNT);
2155 sc->xl_cdata.xl_tx_cons = idx;
2158 ifq_clr_oactive(&ifp->if_snd);
2164 * TX 'end of channel' interrupt handler. Actually, we should
2165 * only get a 'TX complete' interrupt if there's a transmit error,
2166 * so this is really TX error handler.
2169 xl_txeoc(struct xl_softc *sc)
2171 struct ifnet *ifp = &sc->arpcom.ac_if;
2174 while((txstat = CSR_READ_1(sc, XL_TX_STATUS))) {
2175 if (txstat & XL_TXSTATUS_UNDERRUN ||
2176 txstat & XL_TXSTATUS_JABBER ||
2177 txstat & XL_TXSTATUS_RECLAIM) {
2178 if_printf(ifp, "transmission error: %x\n", txstat);
2179 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
2181 if (sc->xl_type == XL_TYPE_905B) {
2182 if (sc->xl_cdata.xl_tx_cnt) {
2185 i = sc->xl_cdata.xl_tx_cons;
2186 c = &sc->xl_cdata.xl_tx_chain[i];
2187 CSR_WRITE_4(sc, XL_DOWNLIST_PTR,
2189 CSR_WRITE_1(sc, XL_DOWN_POLL, 64);
2192 if (sc->xl_cdata.xl_tx_head != NULL)
2193 CSR_WRITE_4(sc, XL_DOWNLIST_PTR,
2194 sc->xl_cdata.xl_tx_head->xl_phys);
2197 * Remember to set this for the
2198 * first generation 3c90X chips.
2200 CSR_WRITE_1(sc, XL_TX_FREETHRESH, XL_PACKET_SIZE >> 8);
2201 if (txstat & XL_TXSTATUS_UNDERRUN &&
2202 sc->xl_tx_thresh < XL_PACKET_SIZE) {
2203 sc->xl_tx_thresh += XL_MIN_FRAMELEN;
2204 if_printf(ifp, "tx underrun, increasing tx start"
2205 " threshold to %d bytes\n",
2208 CSR_WRITE_2(sc, XL_COMMAND,
2209 XL_CMD_TX_SET_START|sc->xl_tx_thresh);
2210 if (sc->xl_type == XL_TYPE_905B) {
2211 CSR_WRITE_2(sc, XL_COMMAND,
2212 XL_CMD_SET_TX_RECLAIM|(XL_PACKET_SIZE >> 4));
2214 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_ENABLE);
2215 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2217 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_ENABLE);
2218 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2221 * Write an arbitrary byte to the TX_STATUS register
2222 * to clear this interrupt/error and advance to the next.
2224 CSR_WRITE_1(sc, XL_TX_STATUS, 0x01);
2230 #ifdef IFPOLL_ENABLE
2233 xl_start_poll(struct ifnet *ifp)
2235 xl_start_body(ifp, 0);
2239 xl_npoll_compat(struct ifnet *ifp, void *arg __unused, int count)
2241 struct xl_softc *sc = ifp->if_softc;
2243 ASSERT_SERIALIZED(ifp->if_serializer);
2245 if (sc->xl_npoll.ifpc_stcount-- == 0) {
2248 sc->xl_npoll.ifpc_stcount = sc->xl_npoll.ifpc_stfrac;
2250 /* XXX copy & pasted from xl_intr() */
2251 status = CSR_READ_2(sc, XL_STATUS);
2252 if ((status & XL_INTRS) && status != 0xFFFF) {
2253 CSR_WRITE_2(sc, XL_COMMAND,
2254 XL_CMD_INTR_ACK | (status & XL_INTRS));
2256 if (status & XL_STAT_TX_COMPLETE) {
2261 if (status & XL_STAT_ADFAIL) {
2266 if (status & XL_STAT_STATSOFLOW) {
2267 sc->xl_stats_no_timeout = 1;
2268 xl_stats_update_serialized(sc);
2269 sc->xl_stats_no_timeout = 0;
2274 xl_rxeof(sc, count);
2275 if (sc->xl_type == XL_TYPE_905B)
2280 if (!ifq_is_empty(&ifp->if_snd))
2285 xl_npoll(struct ifnet *ifp, struct ifpoll_info *info)
2287 struct xl_softc *sc = ifp->if_softc;
2289 ASSERT_SERIALIZED(ifp->if_serializer);
2292 int cpuid = sc->xl_npoll.ifpc_cpuid;
2294 info->ifpi_rx[cpuid].poll_func = xl_npoll_compat;
2295 info->ifpi_rx[cpuid].arg = NULL;
2296 info->ifpi_rx[cpuid].serializer = ifp->if_serializer;
2298 if (ifp->if_flags & IFF_RUNNING)
2299 xl_enable_intrs(sc, 0);
2300 if (sc->xl_type != XL_TYPE_905B)
2301 ifp->if_start = xl_start_poll;
2302 ifp->if_npoll_cpuid = cpuid;
2304 if (sc->xl_type != XL_TYPE_905B)
2305 ifp->if_start = xl_start;
2306 if (ifp->if_flags & IFF_RUNNING)
2307 xl_enable_intrs(sc, XL_INTRS);
2308 ifp->if_npoll_cpuid = -1;
2312 #endif /* IFPOLL_ENABLE */
2317 struct xl_softc *sc;
2322 ifp = &sc->arpcom.ac_if;
2324 ASSERT_SERIALIZED(ifp->if_serializer);
2326 while(((status = CSR_READ_2(sc, XL_STATUS)) & XL_INTRS) &&
2329 CSR_WRITE_2(sc, XL_COMMAND,
2330 XL_CMD_INTR_ACK|(status & XL_INTRS));
2332 if (status & XL_STAT_UP_COMPLETE) {
2335 curpkts = ifp->if_ipackets;
2337 if (curpkts == ifp->if_ipackets) {
2338 while (xl_rx_resync(sc))
2343 if (status & XL_STAT_DOWN_COMPLETE) {
2344 if (sc->xl_type == XL_TYPE_905B)
2350 if (status & XL_STAT_TX_COMPLETE) {
2355 if (status & XL_STAT_ADFAIL) {
2360 if (status & XL_STAT_STATSOFLOW) {
2361 sc->xl_stats_no_timeout = 1;
2362 xl_stats_update_serialized(sc);
2363 sc->xl_stats_no_timeout = 0;
2367 if (!ifq_is_empty(&ifp->if_snd))
2372 xl_stats_update(void *xsc)
2374 struct xl_softc *sc = xsc;
2376 lwkt_serialize_enter(sc->arpcom.ac_if.if_serializer);
2377 xl_stats_update_serialized(xsc);
2378 lwkt_serialize_exit(sc->arpcom.ac_if.if_serializer);
2382 xl_stats_update_serialized(void *xsc)
2384 struct xl_softc *sc;
2386 struct xl_stats xl_stats;
2389 struct mii_data *mii = NULL;
2391 bzero((char *)&xl_stats, sizeof(struct xl_stats));
2394 ifp = &sc->arpcom.ac_if;
2395 if (sc->xl_miibus != NULL)
2396 mii = device_get_softc(sc->xl_miibus);
2398 p = (u_int8_t *)&xl_stats;
2400 /* Read all the stats registers. */
2403 for (i = 0; i < 16; i++)
2404 *p++ = CSR_READ_1(sc, XL_W6_CARRIER_LOST + i);
2406 ifp->if_ierrors += xl_stats.xl_rx_overrun;
2408 ifp->if_collisions += xl_stats.xl_tx_multi_collision +
2409 xl_stats.xl_tx_single_collision +
2410 xl_stats.xl_tx_late_collision;
2413 * Boomerang and cyclone chips have an extra stats counter
2414 * in window 4 (BadSSD). We have to read this too in order
2415 * to clear out all the stats registers and avoid a statsoflow
2419 CSR_READ_1(sc, XL_W4_BADSSD);
2421 if ((mii != NULL) && (!sc->xl_stats_no_timeout))
2426 if (!sc->xl_stats_no_timeout)
2427 callout_reset(&sc->xl_stat_timer, hz, xl_stats_update, sc);
2433 * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data
2434 * pointers to the fragment pointers.
2437 xl_encap(struct xl_softc *sc, struct xl_chain *c, struct mbuf *m_head)
2439 int error, nsegs, i;
2441 bus_dma_segment_t segs[XL_MAXFRAGS];
2444 error = bus_dmamap_load_mbuf_defrag(sc->xl_tx_mtag, c->xl_map, &m_head,
2445 segs, XL_MAXFRAGS, &nsegs, BUS_DMA_NOWAIT);
2450 bus_dmamap_sync(sc->xl_tx_mtag, c->xl_map, BUS_DMASYNC_PREWRITE);
2452 if (sc->xl_type == XL_TYPE_905B) {
2453 status = XL_TXSTAT_RND_DEFEAT;
2454 if (m_head->m_pkthdr.csum_flags) {
2455 if (m_head->m_pkthdr.csum_flags & CSUM_IP)
2456 status |= XL_TXSTAT_IPCKSUM;
2457 if (m_head->m_pkthdr.csum_flags & CSUM_TCP)
2458 status |= XL_TXSTAT_TCPCKSUM;
2459 if (m_head->m_pkthdr.csum_flags & CSUM_UDP)
2460 status |= XL_TXSTAT_UDPCKSUM;
2463 status = m_head->m_pkthdr.len;
2467 for (i = 0; i < nsegs; i++) {
2468 l->xl_frag[i].xl_addr = htole32(segs[i].ds_addr);
2469 l->xl_frag[i].xl_len = htole32(segs[i].ds_len);
2471 l->xl_frag[nsegs - 1].xl_len =
2472 htole32(segs[nsegs - 1].ds_len | XL_LAST_FRAG);
2473 l->xl_status = htole32(status);
2476 c->xl_mbuf = m_head;
2482 xl_start(struct ifnet *ifp)
2484 ASSERT_SERIALIZED(ifp->if_serializer);
2485 xl_start_body(ifp, 1);
2489 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
2490 * to the mbuf data regions directly in the transmit lists. We also save a
2491 * copy of the pointers since the transmit list fragment pointers are
2492 * physical addresses.
2495 xl_start_body(struct ifnet *ifp, int proc_rx)
2497 struct xl_softc *sc;
2498 struct mbuf *m_head = NULL;
2499 struct xl_chain *prev = NULL, *cur_tx = NULL, *start_tx;
2500 struct xl_chain *prev_tx;
2506 * Check for an available queue slot. If there are none,
2509 if (sc->xl_cdata.xl_tx_free == NULL) {
2512 if (sc->xl_cdata.xl_tx_free == NULL) {
2513 ifq_set_oactive(&ifp->if_snd);
2518 start_tx = sc->xl_cdata.xl_tx_free;
2520 while(sc->xl_cdata.xl_tx_free != NULL) {
2521 m_head = ifq_dequeue(&ifp->if_snd, NULL);
2525 /* Pick a descriptor off the free list. */
2527 cur_tx = sc->xl_cdata.xl_tx_free;
2529 /* Pack the data into the descriptor. */
2530 error = xl_encap(sc, cur_tx, m_head);
2536 sc->xl_cdata.xl_tx_free = cur_tx->xl_next;
2537 cur_tx->xl_next = NULL;
2539 /* Chain it together. */
2541 prev->xl_next = cur_tx;
2542 prev->xl_ptr->xl_next = htole32(cur_tx->xl_phys);
2546 BPF_MTAP(ifp, cur_tx->xl_mbuf);
2550 * If there are no packets queued, bail.
2556 * Place the request for the upload interrupt
2557 * in the last descriptor in the chain. This way, if
2558 * we're chaining several packets at once, we'll only
2559 * get an interupt once for the whole chain rather than
2560 * once for each packet.
2562 cur_tx->xl_ptr->xl_status = htole32(le32toh(cur_tx->xl_ptr->xl_status) |
2566 * Queue the packets. If the TX channel is clear, update
2567 * the downlist pointer register.
2569 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_STALL);
2572 if (sc->xl_cdata.xl_tx_head != NULL) {
2573 sc->xl_cdata.xl_tx_tail->xl_next = start_tx;
2574 sc->xl_cdata.xl_tx_tail->xl_ptr->xl_next =
2575 htole32(start_tx->xl_phys);
2576 status = sc->xl_cdata.xl_tx_tail->xl_ptr->xl_status;
2577 sc->xl_cdata.xl_tx_tail->xl_ptr->xl_status =
2578 htole32(le32toh(status) & ~XL_TXSTAT_DL_INTR);
2579 sc->xl_cdata.xl_tx_tail = cur_tx;
2581 sc->xl_cdata.xl_tx_head = start_tx;
2582 sc->xl_cdata.xl_tx_tail = cur_tx;
2585 if (!CSR_READ_4(sc, XL_DOWNLIST_PTR))
2586 CSR_WRITE_4(sc, XL_DOWNLIST_PTR, start_tx->xl_phys);
2588 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2593 * Set a timeout in case the chip goes out to lunch.
2599 * XXX Under certain conditions, usually on slower machines
2600 * where interrupts may be dropped, it's possible for the
2601 * adapter to chew up all the buffers in the receive ring
2602 * and stall, without us being able to do anything about it.
2603 * To guard against this, we need to make a pass over the
2604 * RX queue to make sure there aren't any packets pending.
2605 * Doing it here means we can flush the receive ring at the
2606 * same time the chip is DMAing the transmit descriptors we
2609 * 3Com goes to some lengths to emphasize the Parallel
2610 * Tasking (tm) nature of their chips in all their marketing
2611 * literature; we may as well take advantage of it. :)
2618 xl_start_90xB(struct ifnet *ifp)
2620 struct xl_softc *sc;
2621 struct mbuf *m_head = NULL;
2622 struct xl_chain *prev = NULL, *cur_tx = NULL, *start_tx;
2623 struct xl_chain *prev_tx;
2626 ASSERT_SERIALIZED(ifp->if_serializer);
2630 if ((ifp->if_flags & IFF_RUNNING) == 0 || ifq_is_oactive(&ifp->if_snd))
2633 idx = sc->xl_cdata.xl_tx_prod;
2634 start_tx = &sc->xl_cdata.xl_tx_chain[idx];
2636 while (sc->xl_cdata.xl_tx_chain[idx].xl_mbuf == NULL) {
2638 if ((XL_TX_LIST_CNT - sc->xl_cdata.xl_tx_cnt) < 3) {
2639 ifq_set_oactive(&ifp->if_snd);
2643 m_head = ifq_dequeue(&ifp->if_snd, NULL);
2648 cur_tx = &sc->xl_cdata.xl_tx_chain[idx];
2650 /* Pack the data into the descriptor. */
2651 error = xl_encap(sc, cur_tx, m_head);
2657 /* Chain it together. */
2659 prev->xl_ptr->xl_next = htole32(cur_tx->xl_phys);
2662 BPF_MTAP(ifp, cur_tx->xl_mbuf);
2664 XL_INC(idx, XL_TX_LIST_CNT);
2665 sc->xl_cdata.xl_tx_cnt++;
2669 * If there are no packets queued, bail.
2675 * Place the request for the upload interrupt
2676 * in the last descriptor in the chain. This way, if
2677 * we're chaining several packets at once, we'll only
2678 * get an interupt once for the whole chain rather than
2679 * once for each packet.
2681 cur_tx->xl_ptr->xl_status = htole32(le32toh(cur_tx->xl_ptr->xl_status) |
2684 /* Start transmission */
2685 sc->xl_cdata.xl_tx_prod = idx;
2686 start_tx->xl_prev->xl_ptr->xl_next = htole32(start_tx->xl_phys);
2689 * Set a timeout in case the chip goes out to lunch.
2697 struct xl_softc *sc = xsc;
2698 struct ifnet *ifp = &sc->arpcom.ac_if;
2700 u_int16_t rxfilt = 0;
2701 struct mii_data *mii = NULL;
2703 ASSERT_SERIALIZED(ifp->if_serializer);
2706 * Cancel pending I/O and free all RX/TX buffers.
2710 if (sc->xl_miibus == NULL) {
2711 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_RESET);
2714 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
2718 if (sc->xl_miibus != NULL)
2719 mii = device_get_softc(sc->xl_miibus);
2721 /* Init our MAC address */
2723 for (i = 0; i < ETHER_ADDR_LEN; i++) {
2724 CSR_WRITE_1(sc, XL_W2_STATION_ADDR_LO + i,
2725 sc->arpcom.ac_enaddr[i]);
2728 /* Clear the station mask. */
2729 for (i = 0; i < 3; i++)
2730 CSR_WRITE_2(sc, XL_W2_STATION_MASK_LO + (i * 2), 0);
2732 /* Reset TX and RX. */
2733 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_RESET);
2735 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
2738 /* Init circular RX list. */
2739 error = xl_list_rx_init(sc);
2741 if_printf(ifp, "initialization of the rx ring failed (%d)\n",
2747 /* Init TX descriptors. */
2748 if (sc->xl_type == XL_TYPE_905B)
2749 xl_list_tx_init_90xB(sc);
2751 xl_list_tx_init(sc);
2754 * Set the TX freethresh value.
2755 * Note that this has no effect on 3c905B "cyclone"
2756 * cards but is required for 3c900/3c905 "boomerang"
2757 * cards in order to enable the download engine.
2759 CSR_WRITE_1(sc, XL_TX_FREETHRESH, XL_PACKET_SIZE >> 8);
2761 /* Set the TX start threshold for best performance. */
2762 sc->xl_tx_thresh = XL_MIN_FRAMELEN;
2763 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_SET_START|sc->xl_tx_thresh);
2766 * If this is a 3c905B, also set the tx reclaim threshold.
2767 * This helps cut down on the number of tx reclaim errors
2768 * that could happen on a busy network. The chip multiplies
2769 * the register value by 16 to obtain the actual threshold
2770 * in bytes, so we divide by 16 when setting the value here.
2771 * The existing threshold value can be examined by reading
2772 * the register at offset 9 in window 5.
2774 if (sc->xl_type == XL_TYPE_905B) {
2775 CSR_WRITE_2(sc, XL_COMMAND,
2776 XL_CMD_SET_TX_RECLAIM|(XL_PACKET_SIZE >> 4));
2779 /* Set RX filter bits. */
2781 rxfilt = CSR_READ_1(sc, XL_W5_RX_FILTER);
2783 /* Set the individual bit to receive frames for this host only. */
2784 rxfilt |= XL_RXFILTER_INDIVIDUAL;
2786 /* If we want promiscuous mode, set the allframes bit. */
2787 if (ifp->if_flags & IFF_PROMISC) {
2788 rxfilt |= XL_RXFILTER_ALLFRAMES;
2789 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
2791 rxfilt &= ~XL_RXFILTER_ALLFRAMES;
2792 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
2796 * Set capture broadcast bit to capture broadcast frames.
2798 if (ifp->if_flags & IFF_BROADCAST) {
2799 rxfilt |= XL_RXFILTER_BROADCAST;
2800 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
2802 rxfilt &= ~XL_RXFILTER_BROADCAST;
2803 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_FILT|rxfilt);
2807 * Program the multicast filter, if necessary.
2809 if (sc->xl_type == XL_TYPE_905B)
2810 xl_setmulti_hash(sc);
2814 if (sc->xl_type == XL_TYPE_905B) {
2815 /* Set UP polling interval */
2816 CSR_WRITE_1(sc, XL_UP_POLL, 64);
2820 * Load the address of the RX list. We have to
2821 * stall the upload engine before we can manipulate
2822 * the uplist pointer register, then unstall it when
2823 * we're finished. We also have to wait for the
2824 * stall command to complete before proceeding.
2825 * Note that we have to do this after any RX resets
2826 * have completed since the uplist register is cleared
2829 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_UP_STALL);
2831 CSR_WRITE_4(sc, XL_UPLIST_PTR, sc->xl_ldata.xl_rx_dmaaddr);
2832 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_UP_UNSTALL);
2835 if (sc->xl_type == XL_TYPE_905B) {
2836 /* Set DN polling interval */
2837 CSR_WRITE_1(sc, XL_DOWN_POLL, 64);
2839 /* Load the address of the TX list */
2840 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_STALL);
2842 CSR_WRITE_4(sc, XL_DOWNLIST_PTR,
2843 sc->xl_cdata.xl_tx_chain[0].xl_phys);
2844 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_UNSTALL);
2849 * If the coax transceiver is on, make sure to enable
2850 * the DC-DC converter.
2853 if (sc->xl_xcvr == XL_XCVR_COAX)
2854 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_START);
2856 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_STOP);
2859 * increase packet size to allow reception of 802.1q or ISL packets.
2860 * For the 3c90x chip, set the 'allow large packets' bit in the MAC
2861 * control register. For 3c90xB/C chips, use the RX packet size
2865 if (sc->xl_type == XL_TYPE_905B) {
2866 CSR_WRITE_2(sc, XL_W3_MAXPKTSIZE, XL_PACKET_SIZE);
2869 macctl = CSR_READ_1(sc, XL_W3_MAC_CTRL);
2870 macctl |= XL_MACCTRL_ALLOW_LARGE_PACK;
2871 CSR_WRITE_1(sc, XL_W3_MAC_CTRL, macctl);
2874 /* Clear out the stats counters. */
2875 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STATS_DISABLE);
2876 sc->xl_stats_no_timeout = 1;
2877 xl_stats_update_serialized(sc);
2878 sc->xl_stats_no_timeout = 0;
2880 CSR_WRITE_2(sc, XL_W4_NET_DIAG, XL_NETDIAG_UPPER_BYTES_ENABLE);
2881 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STATS_ENABLE);
2884 * Enable interrupts.
2886 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STAT_ENB | XL_INTRS);
2887 #ifdef IFPOLL_ENABLE
2888 /* Do not enable interrupt if polling(4) is enabled */
2889 if (ifp->if_flags & IFF_NPOLLING)
2890 xl_enable_intrs(sc, 0);
2893 xl_enable_intrs(sc, XL_INTRS);
2895 /* Set the RX early threshold */
2896 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_SET_THRESH|(XL_PACKET_SIZE >>2));
2897 CSR_WRITE_2(sc, XL_DMACTL, XL_DMACTL_UP_RX_EARLY);
2899 /* Enable receiver and transmitter. */
2900 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_ENABLE);
2902 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_ENABLE);
2908 /* Select window 7 for normal operations. */
2911 ifp->if_flags |= IFF_RUNNING;
2912 ifq_clr_oactive(&ifp->if_snd);
2914 callout_reset(&sc->xl_stat_timer, hz, xl_stats_update, sc);
2918 * Set media options.
2921 xl_ifmedia_upd(struct ifnet *ifp)
2923 struct xl_softc *sc;
2924 struct ifmedia *ifm = NULL;
2925 struct mii_data *mii = NULL;
2927 ASSERT_SERIALIZED(ifp->if_serializer);
2930 if (sc->xl_miibus != NULL)
2931 mii = device_get_softc(sc->xl_miibus);
2935 ifm = &mii->mii_media;
2937 switch(IFM_SUBTYPE(ifm->ifm_media)) {
2942 xl_setmode(sc, ifm->ifm_media);
2949 if (sc->xl_media & XL_MEDIAOPT_MII || sc->xl_media & XL_MEDIAOPT_BTX
2950 || sc->xl_media & XL_MEDIAOPT_BT4) {
2953 xl_setmode(sc, ifm->ifm_media);
2960 * Report current media status.
2963 xl_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
2965 struct xl_softc *sc;
2967 struct mii_data *mii = NULL;
2969 ASSERT_SERIALIZED(ifp->if_serializer);
2972 if (sc->xl_miibus != NULL)
2973 mii = device_get_softc(sc->xl_miibus);
2976 icfg = CSR_READ_4(sc, XL_W3_INTERNAL_CFG) & XL_ICFG_CONNECTOR_MASK;
2977 icfg >>= XL_ICFG_CONNECTOR_BITS;
2979 ifmr->ifm_active = IFM_ETHER;
2983 ifmr->ifm_active = IFM_ETHER|IFM_10_T;
2984 if (CSR_READ_1(sc, XL_W3_MAC_CTRL) & XL_MACCTRL_DUPLEX)
2985 ifmr->ifm_active |= IFM_FDX;
2987 ifmr->ifm_active |= IFM_HDX;
2990 if (sc->xl_type == XL_TYPE_905B &&
2991 sc->xl_media == XL_MEDIAOPT_10FL) {
2992 ifmr->ifm_active = IFM_ETHER|IFM_10_FL;
2993 if (CSR_READ_1(sc, XL_W3_MAC_CTRL) & XL_MACCTRL_DUPLEX)
2994 ifmr->ifm_active |= IFM_FDX;
2996 ifmr->ifm_active |= IFM_HDX;
2998 ifmr->ifm_active = IFM_ETHER|IFM_10_5;
3001 ifmr->ifm_active = IFM_ETHER|IFM_10_2;
3004 * XXX MII and BTX/AUTO should be separate cases.
3007 case XL_XCVR_100BTX:
3012 ifmr->ifm_active = mii->mii_media_active;
3013 ifmr->ifm_status = mii->mii_media_status;
3016 case XL_XCVR_100BFX:
3017 ifmr->ifm_active = IFM_ETHER|IFM_100_FX;
3020 if_printf(ifp, "unknown XCVR type: %d\n", icfg);
3028 xl_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
3030 struct xl_softc *sc = ifp->if_softc;
3031 struct ifreq *ifr = (struct ifreq *) data;
3033 struct mii_data *mii = NULL;
3036 ASSERT_SERIALIZED(ifp->if_serializer);
3041 rxfilt = CSR_READ_1(sc, XL_W5_RX_FILTER);
3042 if (ifp->if_flags & IFF_UP) {
3043 if (ifp->if_flags & IFF_RUNNING &&
3044 ifp->if_flags & IFF_PROMISC &&
3045 !(sc->xl_if_flags & IFF_PROMISC)) {
3046 rxfilt |= XL_RXFILTER_ALLFRAMES;
3047 CSR_WRITE_2(sc, XL_COMMAND,
3048 XL_CMD_RX_SET_FILT|rxfilt);
3050 } else if (ifp->if_flags & IFF_RUNNING &&
3051 !(ifp->if_flags & IFF_PROMISC) &&
3052 sc->xl_if_flags & IFF_PROMISC) {
3053 rxfilt &= ~XL_RXFILTER_ALLFRAMES;
3054 CSR_WRITE_2(sc, XL_COMMAND,
3055 XL_CMD_RX_SET_FILT|rxfilt);
3060 if (ifp->if_flags & IFF_RUNNING)
3063 sc->xl_if_flags = ifp->if_flags;
3068 if (sc->xl_type == XL_TYPE_905B)
3069 xl_setmulti_hash(sc);
3076 if (sc->xl_miibus != NULL)
3077 mii = device_get_softc(sc->xl_miibus);
3079 error = ifmedia_ioctl(ifp, ifr,
3080 &sc->ifmedia, command);
3082 error = ifmedia_ioctl(ifp, ifr,
3083 &mii->mii_media, command);
3086 ifp->if_capenable &= ~IFCAP_HWCSUM;
3087 ifp->if_capenable |= (ifr->ifr_reqcap & IFCAP_HWCSUM);
3088 if (ifp->if_capenable & IFCAP_HWCSUM)
3089 ifp->if_hwassist = XL905B_CSUM_FEATURES;
3091 ifp->if_hwassist = 0;
3094 error = ether_ioctl(ifp, command, data);
3101 xl_watchdog(struct ifnet *ifp)
3103 struct xl_softc *sc;
3104 u_int16_t status = 0;
3106 ASSERT_SERIALIZED(ifp->if_serializer);
3112 status = CSR_READ_2(sc, XL_W4_MEDIA_STATUS);
3113 if_printf(ifp, "watchdog timeout\n");
3115 if (status & XL_MEDIASTAT_CARRIER)
3116 if_printf(ifp, "no carrier - transceiver cable problem?\n");
3123 if (!ifq_is_empty(&ifp->if_snd))
3128 * Stop the adapter and free any mbufs allocated to the
3132 xl_stop(struct xl_softc *sc)
3137 ifp = &sc->arpcom.ac_if;
3138 ASSERT_SERIALIZED(ifp->if_serializer);
3142 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_DISABLE);
3143 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STATS_DISABLE);
3144 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ENB);
3145 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_DISCARD);
3147 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_DISABLE);
3148 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_COAX_STOP);
3152 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_RX_RESET);
3154 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_TX_RESET);
3158 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ACK|XL_STAT_INTLATCH);
3159 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STAT_ENB|0);
3160 CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_INTR_ENB|0);
3161 if (sc->xl_flags & XL_FLAG_FUNCREG)
3162 bus_space_write_4(sc->xl_ftag, sc->xl_fhandle, 4, 0x8000);
3164 /* Stop the stats updater. */
3165 callout_stop(&sc->xl_stat_timer);
3168 * Free data in the RX lists.
3170 for (i = 0; i < XL_RX_LIST_CNT; i++) {
3171 if (sc->xl_cdata.xl_rx_chain[i].xl_mbuf != NULL) {
3172 bus_dmamap_unload(sc->xl_rx_mtag,
3173 sc->xl_cdata.xl_rx_chain[i].xl_map);
3174 m_freem(sc->xl_cdata.xl_rx_chain[i].xl_mbuf);
3175 sc->xl_cdata.xl_rx_chain[i].xl_mbuf = NULL;
3178 bzero(sc->xl_ldata.xl_rx_list, XL_RX_LIST_SZ);
3181 * Free the TX list buffers.
3183 for (i = 0; i < XL_TX_LIST_CNT; i++) {
3184 if (sc->xl_cdata.xl_tx_chain[i].xl_mbuf != NULL) {
3185 bus_dmamap_unload(sc->xl_tx_mtag,
3186 sc->xl_cdata.xl_tx_chain[i].xl_map);
3187 m_freem(sc->xl_cdata.xl_tx_chain[i].xl_mbuf);
3188 sc->xl_cdata.xl_tx_chain[i].xl_mbuf = NULL;
3191 bzero(sc->xl_ldata.xl_tx_list, XL_TX_LIST_SZ);
3193 ifp->if_flags &= ~IFF_RUNNING;
3194 ifq_clr_oactive(&ifp->if_snd);
3198 * Stop all chip I/O so that the kernel's probe routines don't
3199 * get confused by errant DMAs when rebooting.
3202 xl_shutdown(device_t dev)
3204 struct xl_softc *sc = device_get_softc(dev);
3206 lwkt_serialize_enter(sc->arpcom.ac_if.if_serializer);
3209 lwkt_serialize_exit(sc->arpcom.ac_if.if_serializer);
3213 xl_suspend(device_t dev)
3215 struct xl_softc *sc = device_get_softc(dev);
3217 lwkt_serialize_enter(sc->arpcom.ac_if.if_serializer);
3219 lwkt_serialize_exit(sc->arpcom.ac_if.if_serializer);
3225 xl_resume(device_t dev)
3227 struct xl_softc *sc;
3230 sc = device_get_softc(dev);
3231 ifp = &sc->arpcom.ac_if;
3233 lwkt_serialize_enter(ifp->if_serializer);
3235 if (ifp->if_flags & IFF_UP)
3237 lwkt_serialize_exit(ifp->if_serializer);