1 /* $OpenBSD: if_sk.c,v 2.33 2003/08/12 05:23:06 nate Exp $ */
4 * Copyright (c) 1997, 1998, 1999, 2000
5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
35 * Copyright (c) 2003 Nathan L. Binkert <binkertn@umich.edu>
37 * Permission to use, copy, modify, and distribute this software for any
38 * purpose with or without fee is hereby granted, provided that the above
39 * copyright notice and this permission notice appear in all copies.
41 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
42 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
43 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
44 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
45 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
46 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
47 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
50 #include <sys/cdefs.h>
51 __FBSDID("$FreeBSD$");
54 * SysKonnect SK-NET gigabit ethernet driver for FreeBSD. Supports
55 * the SK-984x series adapters, both single port and dual port.
57 * The XaQti XMAC II datasheet,
58 * http://www.freebsd.org/~wpaul/SysKonnect/xmacii_datasheet_rev_c_9-29.pdf
59 * The SysKonnect GEnesis manual, http://www.syskonnect.com
61 * Note: XaQti has been acquired by Vitesse, and Vitesse does not have the
62 * XMAC II datasheet online. I have put my copy at people.freebsd.org as a
63 * convenience to others until Vitesse corrects this problem:
65 * http://people.freebsd.org/~wpaul/SysKonnect/xmacii_datasheet_rev_c_9-29.pdf
67 * Written by Bill Paul <wpaul@ee.columbia.edu>
68 * Department of Electrical Engineering
69 * Columbia University, New York City
72 * The SysKonnect gigabit ethernet adapters consist of two main
73 * components: the SysKonnect GEnesis controller chip and the XaQti Corp.
74 * XMAC II gigabit ethernet MAC. The XMAC provides all of the MAC
75 * components and a PHY while the GEnesis controller provides a PCI
76 * interface with DMA support. Each card may have between 512K and
77 * 2MB of SRAM on board depending on the configuration.
79 * The SysKonnect GEnesis controller can have either one or two XMAC
80 * chips connected to it, allowing single or dual port NIC configurations.
81 * SysKonnect has the distinction of being the only vendor on the market
82 * with a dual port gigabit ethernet NIC. The GEnesis provides dual FIFOs,
83 * dual DMA queues, packet/MAC/transmit arbiters and direct access to the
84 * XMAC registers. This driver takes advantage of these features to allow
85 * both XMACs to operate as independent interfaces.
88 #include <sys/param.h>
89 #include <sys/systm.h>
91 #include <sys/endian.h>
93 #include <sys/malloc.h>
94 #include <sys/kernel.h>
95 #include <sys/module.h>
96 #include <sys/socket.h>
97 #include <sys/sockio.h>
98 #include <sys/queue.h>
99 #include <sys/sysctl.h>
102 #include <net/ethernet.h>
104 #include <net/if_arp.h>
105 #include <net/if_dl.h>
106 #include <net/if_media.h>
107 #include <net/if_types.h>
108 #include <net/if_vlan_var.h>
110 #include <netinet/in.h>
111 #include <netinet/in_systm.h>
112 #include <netinet/ip.h>
114 #include <machine/bus.h>
115 #include <machine/in_cksum.h>
116 #include <machine/resource.h>
117 #include <sys/rman.h>
119 #include <dev/mii/mii.h>
120 #include <dev/mii/miivar.h>
121 #include <dev/mii/brgphyreg.h>
123 #include <dev/pci/pcireg.h>
124 #include <dev/pci/pcivar.h>
127 #define SK_USEIOSPACE
130 #include <dev/sk/if_skreg.h>
131 #include <dev/sk/xmaciireg.h>
132 #include <dev/sk/yukonreg.h>
134 MODULE_DEPEND(sk, pci, 1, 1, 1);
135 MODULE_DEPEND(sk, ether, 1, 1, 1);
136 MODULE_DEPEND(sk, miibus, 1, 1, 1);
138 /* "device miibus" required. See GENERIC if you get errors here. */
139 #include "miibus_if.h"
142 static const char rcsid[] =
146 static struct sk_type sk_devs[] = {
150 "SysKonnect Gigabit Ethernet (V1.0)"
155 "SysKonnect Gigabit Ethernet (V2.0)"
160 "Marvell Gigabit Ethernet"
164 DEVICEID_BELKIN_5005,
165 "Belkin F5D5005 Gigabit Ethernet"
170 "3Com 3C940 Gigabit Ethernet"
174 DEVICEID_LINKSYS_EG1032,
175 "Linksys EG1032 Gigabit Ethernet"
179 DEVICEID_DLINK_DGE530T_A1,
180 "D-Link DGE-530T Gigabit Ethernet"
184 DEVICEID_DLINK_DGE530T_B1,
185 "D-Link DGE-530T Gigabit Ethernet"
190 static int skc_probe(device_t);
191 static int skc_attach(device_t);
192 static int skc_detach(device_t);
193 static int skc_shutdown(device_t);
194 static int skc_suspend(device_t);
195 static int skc_resume(device_t);
196 static int sk_detach(device_t);
197 static int sk_probe(device_t);
198 static int sk_attach(device_t);
199 static void sk_tick(void *);
200 static void sk_yukon_tick(void *);
201 static void sk_intr(void *);
202 static void sk_intr_xmac(struct sk_if_softc *);
203 static void sk_intr_bcom(struct sk_if_softc *);
204 static void sk_intr_yukon(struct sk_if_softc *);
205 static __inline void sk_rxcksum(struct ifnet *, struct mbuf *, u_int32_t);
206 static __inline int sk_rxvalid(struct sk_softc *, u_int32_t, u_int32_t);
207 static void sk_rxeof(struct sk_if_softc *);
208 static void sk_jumbo_rxeof(struct sk_if_softc *);
209 static void sk_txeof(struct sk_if_softc *);
210 static void sk_txcksum(struct ifnet *, struct mbuf *, struct sk_tx_desc *);
211 static int sk_encap(struct sk_if_softc *, struct mbuf **);
212 static void sk_start(struct ifnet *);
213 static void sk_start_locked(struct ifnet *);
214 static int sk_ioctl(struct ifnet *, u_long, caddr_t);
215 static void sk_init(void *);
216 static void sk_init_locked(struct sk_if_softc *);
217 static void sk_init_xmac(struct sk_if_softc *);
218 static void sk_init_yukon(struct sk_if_softc *);
219 static void sk_stop(struct sk_if_softc *);
220 static void sk_watchdog(void *);
221 static int sk_ifmedia_upd(struct ifnet *);
222 static void sk_ifmedia_sts(struct ifnet *, struct ifmediareq *);
223 static void sk_reset(struct sk_softc *);
224 static __inline void sk_discard_rxbuf(struct sk_if_softc *, int);
225 static __inline void sk_discard_jumbo_rxbuf(struct sk_if_softc *, int);
226 static int sk_newbuf(struct sk_if_softc *, int);
227 static int sk_jumbo_newbuf(struct sk_if_softc *, int);
228 static void sk_dmamap_cb(void *, bus_dma_segment_t *, int, int);
229 static int sk_dma_alloc(struct sk_if_softc *);
230 static int sk_dma_jumbo_alloc(struct sk_if_softc *);
231 static void sk_dma_free(struct sk_if_softc *);
232 static void sk_dma_jumbo_free(struct sk_if_softc *);
233 static int sk_init_rx_ring(struct sk_if_softc *);
234 static int sk_init_jumbo_rx_ring(struct sk_if_softc *);
235 static void sk_init_tx_ring(struct sk_if_softc *);
236 static u_int32_t sk_win_read_4(struct sk_softc *, int);
237 static u_int16_t sk_win_read_2(struct sk_softc *, int);
238 static u_int8_t sk_win_read_1(struct sk_softc *, int);
239 static void sk_win_write_4(struct sk_softc *, int, u_int32_t);
240 static void sk_win_write_2(struct sk_softc *, int, u_int32_t);
241 static void sk_win_write_1(struct sk_softc *, int, u_int32_t);
243 static int sk_miibus_readreg(device_t, int, int);
244 static int sk_miibus_writereg(device_t, int, int, int);
245 static void sk_miibus_statchg(device_t);
247 static int sk_xmac_miibus_readreg(struct sk_if_softc *, int, int);
248 static int sk_xmac_miibus_writereg(struct sk_if_softc *, int, int,
250 static void sk_xmac_miibus_statchg(struct sk_if_softc *);
252 static int sk_marv_miibus_readreg(struct sk_if_softc *, int, int);
253 static int sk_marv_miibus_writereg(struct sk_if_softc *, int, int,
255 static void sk_marv_miibus_statchg(struct sk_if_softc *);
257 static uint32_t sk_xmchash(const uint8_t *);
258 static void sk_setfilt(struct sk_if_softc *, u_int16_t *, int);
259 static void sk_rxfilter(struct sk_if_softc *);
260 static void sk_rxfilter_genesis(struct sk_if_softc *);
261 static void sk_rxfilter_yukon(struct sk_if_softc *);
263 static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high);
264 static int sysctl_hw_sk_int_mod(SYSCTL_HANDLER_ARGS);
267 static int jumbo_disable = 0;
268 TUNABLE_INT("hw.skc.jumbo_disable", &jumbo_disable);
271 * It seems that SK-NET GENESIS supports very simple checksum offload
272 * capability for Tx and I believe it can generate 0 checksum value for
273 * UDP packets in Tx as the hardware can't differenciate UDP packets from
274 * TCP packets. 0 chcecksum value for UDP packet is an invalid one as it
275 * means sender didn't perforam checksum computation. For the safety I
276 * disabled UDP checksum offload capability at the moment. Alternatively
277 * we can intrduce a LINK0/LINK1 flag as hme(4) did in its Tx checksum
280 #define SK_CSUM_FEATURES (CSUM_TCP)
283 * Note that we have newbus methods for both the GEnesis controller
284 * itself and the XMAC(s). The XMACs are children of the GEnesis, and
285 * the miibus code is a child of the XMACs. We need to do it this way
286 * so that the miibus drivers can access the PHY registers on the
287 * right PHY. It's not quite what I had in mind, but it's the only
288 * design that achieves the desired effect.
290 static device_method_t skc_methods[] = {
291 /* Device interface */
292 DEVMETHOD(device_probe, skc_probe),
293 DEVMETHOD(device_attach, skc_attach),
294 DEVMETHOD(device_detach, skc_detach),
295 DEVMETHOD(device_suspend, skc_suspend),
296 DEVMETHOD(device_resume, skc_resume),
297 DEVMETHOD(device_shutdown, skc_shutdown),
300 DEVMETHOD(bus_print_child, bus_generic_print_child),
301 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
306 static driver_t skc_driver = {
309 sizeof(struct sk_softc)
312 static devclass_t skc_devclass;
314 static device_method_t sk_methods[] = {
315 /* Device interface */
316 DEVMETHOD(device_probe, sk_probe),
317 DEVMETHOD(device_attach, sk_attach),
318 DEVMETHOD(device_detach, sk_detach),
319 DEVMETHOD(device_shutdown, bus_generic_shutdown),
322 DEVMETHOD(bus_print_child, bus_generic_print_child),
323 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
326 DEVMETHOD(miibus_readreg, sk_miibus_readreg),
327 DEVMETHOD(miibus_writereg, sk_miibus_writereg),
328 DEVMETHOD(miibus_statchg, sk_miibus_statchg),
333 static driver_t sk_driver = {
336 sizeof(struct sk_if_softc)
339 static devclass_t sk_devclass;
341 DRIVER_MODULE(skc, pci, skc_driver, skc_devclass, 0, 0);
342 DRIVER_MODULE(sk, skc, sk_driver, sk_devclass, 0, 0);
343 DRIVER_MODULE(miibus, sk, miibus_driver, miibus_devclass, 0, 0);
345 static struct resource_spec sk_res_spec_io[] = {
346 { SYS_RES_IOPORT, PCIR_BAR(1), RF_ACTIVE },
347 { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE },
351 static struct resource_spec sk_res_spec_mem[] = {
352 { SYS_RES_MEMORY, PCIR_BAR(0), RF_ACTIVE },
353 { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE },
357 #define SK_SETBIT(sc, reg, x) \
358 CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | x)
360 #define SK_CLRBIT(sc, reg, x) \
361 CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~x)
363 #define SK_WIN_SETBIT_4(sc, reg, x) \
364 sk_win_write_4(sc, reg, sk_win_read_4(sc, reg) | x)
366 #define SK_WIN_CLRBIT_4(sc, reg, x) \
367 sk_win_write_4(sc, reg, sk_win_read_4(sc, reg) & ~x)
369 #define SK_WIN_SETBIT_2(sc, reg, x) \
370 sk_win_write_2(sc, reg, sk_win_read_2(sc, reg) | x)
372 #define SK_WIN_CLRBIT_2(sc, reg, x) \
373 sk_win_write_2(sc, reg, sk_win_read_2(sc, reg) & ~x)
376 sk_win_read_4(sc, reg)
381 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg));
382 return(CSR_READ_4(sc, SK_WIN_BASE + SK_REG(reg)));
384 return(CSR_READ_4(sc, reg));
389 sk_win_read_2(sc, reg)
394 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg));
395 return(CSR_READ_2(sc, SK_WIN_BASE + SK_REG(reg)));
397 return(CSR_READ_2(sc, reg));
402 sk_win_read_1(sc, reg)
407 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg));
408 return(CSR_READ_1(sc, SK_WIN_BASE + SK_REG(reg)));
410 return(CSR_READ_1(sc, reg));
415 sk_win_write_4(sc, reg, val)
421 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg));
422 CSR_WRITE_4(sc, SK_WIN_BASE + SK_REG(reg), val);
424 CSR_WRITE_4(sc, reg, val);
430 sk_win_write_2(sc, reg, val)
436 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg));
437 CSR_WRITE_2(sc, SK_WIN_BASE + SK_REG(reg), val);
439 CSR_WRITE_2(sc, reg, val);
445 sk_win_write_1(sc, reg, val)
451 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg));
452 CSR_WRITE_1(sc, SK_WIN_BASE + SK_REG(reg), val);
454 CSR_WRITE_1(sc, reg, val);
460 sk_miibus_readreg(dev, phy, reg)
464 struct sk_if_softc *sc_if;
467 sc_if = device_get_softc(dev);
469 SK_IF_MII_LOCK(sc_if);
470 switch(sc_if->sk_softc->sk_type) {
472 v = sk_xmac_miibus_readreg(sc_if, phy, reg);
477 v = sk_marv_miibus_readreg(sc_if, phy, reg);
483 SK_IF_MII_UNLOCK(sc_if);
489 sk_miibus_writereg(dev, phy, reg, val)
493 struct sk_if_softc *sc_if;
496 sc_if = device_get_softc(dev);
498 SK_IF_MII_LOCK(sc_if);
499 switch(sc_if->sk_softc->sk_type) {
501 v = sk_xmac_miibus_writereg(sc_if, phy, reg, val);
506 v = sk_marv_miibus_writereg(sc_if, phy, reg, val);
512 SK_IF_MII_UNLOCK(sc_if);
518 sk_miibus_statchg(dev)
521 struct sk_if_softc *sc_if;
523 sc_if = device_get_softc(dev);
525 SK_IF_MII_LOCK(sc_if);
526 switch(sc_if->sk_softc->sk_type) {
528 sk_xmac_miibus_statchg(sc_if);
533 sk_marv_miibus_statchg(sc_if);
536 SK_IF_MII_UNLOCK(sc_if);
542 sk_xmac_miibus_readreg(sc_if, phy, reg)
543 struct sk_if_softc *sc_if;
548 SK_XM_WRITE_2(sc_if, XM_PHY_ADDR, reg|(phy << 8));
549 SK_XM_READ_2(sc_if, XM_PHY_DATA);
550 if (sc_if->sk_phytype != SK_PHYTYPE_XMAC) {
551 for (i = 0; i < SK_TIMEOUT; i++) {
553 if (SK_XM_READ_2(sc_if, XM_MMUCMD) &
554 XM_MMUCMD_PHYDATARDY)
558 if (i == SK_TIMEOUT) {
559 if_printf(sc_if->sk_ifp, "phy failed to come ready\n");
564 i = SK_XM_READ_2(sc_if, XM_PHY_DATA);
570 sk_xmac_miibus_writereg(sc_if, phy, reg, val)
571 struct sk_if_softc *sc_if;
576 SK_XM_WRITE_2(sc_if, XM_PHY_ADDR, reg|(phy << 8));
577 for (i = 0; i < SK_TIMEOUT; i++) {
578 if (!(SK_XM_READ_2(sc_if, XM_MMUCMD) & XM_MMUCMD_PHYBUSY))
582 if (i == SK_TIMEOUT) {
583 if_printf(sc_if->sk_ifp, "phy failed to come ready\n");
587 SK_XM_WRITE_2(sc_if, XM_PHY_DATA, val);
588 for (i = 0; i < SK_TIMEOUT; i++) {
590 if (!(SK_XM_READ_2(sc_if, XM_MMUCMD) & XM_MMUCMD_PHYBUSY))
594 if_printf(sc_if->sk_ifp, "phy write timed out\n");
600 sk_xmac_miibus_statchg(sc_if)
601 struct sk_if_softc *sc_if;
603 struct mii_data *mii;
605 mii = device_get_softc(sc_if->sk_miibus);
608 * If this is a GMII PHY, manually set the XMAC's
609 * duplex mode accordingly.
611 if (sc_if->sk_phytype != SK_PHYTYPE_XMAC) {
612 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) {
613 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_GMIIFDX);
615 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_GMIIFDX);
621 sk_marv_miibus_readreg(sc_if, phy, reg)
622 struct sk_if_softc *sc_if;
628 if (sc_if->sk_phytype != SK_PHYTYPE_MARV_COPPER &&
629 sc_if->sk_phytype != SK_PHYTYPE_MARV_FIBER) {
633 SK_YU_WRITE_2(sc_if, YUKON_SMICR, YU_SMICR_PHYAD(phy) |
634 YU_SMICR_REGAD(reg) | YU_SMICR_OP_READ);
636 for (i = 0; i < SK_TIMEOUT; i++) {
638 val = SK_YU_READ_2(sc_if, YUKON_SMICR);
639 if (val & YU_SMICR_READ_VALID)
643 if (i == SK_TIMEOUT) {
644 if_printf(sc_if->sk_ifp, "phy failed to come ready\n");
648 val = SK_YU_READ_2(sc_if, YUKON_SMIDR);
654 sk_marv_miibus_writereg(sc_if, phy, reg, val)
655 struct sk_if_softc *sc_if;
660 SK_YU_WRITE_2(sc_if, YUKON_SMIDR, val);
661 SK_YU_WRITE_2(sc_if, YUKON_SMICR, YU_SMICR_PHYAD(phy) |
662 YU_SMICR_REGAD(reg) | YU_SMICR_OP_WRITE);
664 for (i = 0; i < SK_TIMEOUT; i++) {
666 if ((SK_YU_READ_2(sc_if, YUKON_SMICR) & YU_SMICR_BUSY) == 0)
670 if_printf(sc_if->sk_ifp, "phy write timeout\n");
676 sk_marv_miibus_statchg(sc_if)
677 struct sk_if_softc *sc_if;
690 /* Compute CRC for the address value. */
691 crc = ether_crc32_le(addr, ETHER_ADDR_LEN);
693 return (~crc & ((1 << HASH_BITS) - 1));
697 sk_setfilt(sc_if, addr, slot)
698 struct sk_if_softc *sc_if;
704 base = XM_RXFILT_ENTRY(slot);
706 SK_XM_WRITE_2(sc_if, base, addr[0]);
707 SK_XM_WRITE_2(sc_if, base + 2, addr[1]);
708 SK_XM_WRITE_2(sc_if, base + 4, addr[2]);
715 struct sk_if_softc *sc_if;
719 SK_IF_LOCK_ASSERT(sc_if);
721 sc = sc_if->sk_softc;
722 if (sc->sk_type == SK_GENESIS)
723 sk_rxfilter_genesis(sc_if);
725 sk_rxfilter_yukon(sc_if);
729 sk_rxfilter_genesis(sc_if)
730 struct sk_if_softc *sc_if;
732 struct ifnet *ifp = sc_if->sk_ifp;
733 u_int32_t hashes[2] = { 0, 0 }, mode;
735 struct ifmultiaddr *ifma;
736 u_int16_t dummy[] = { 0, 0, 0 };
737 u_int16_t maddr[(ETHER_ADDR_LEN+1)/2];
739 SK_IF_LOCK_ASSERT(sc_if);
741 mode = SK_XM_READ_4(sc_if, XM_MODE);
742 mode &= ~(XM_MODE_RX_PROMISC | XM_MODE_RX_USE_HASH |
743 XM_MODE_RX_USE_PERFECT);
744 /* First, zot all the existing perfect filters. */
745 for (i = 1; i < XM_RXFILT_MAX; i++)
746 sk_setfilt(sc_if, dummy, i);
748 /* Now program new ones. */
749 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
750 if (ifp->if_flags & IFF_ALLMULTI)
751 mode |= XM_MODE_RX_USE_HASH;
752 if (ifp->if_flags & IFF_PROMISC)
753 mode |= XM_MODE_RX_PROMISC;
754 hashes[0] = 0xFFFFFFFF;
755 hashes[1] = 0xFFFFFFFF;
759 TAILQ_FOREACH_REVERSE(ifma, &ifp->if_multiaddrs, ifmultihead,
761 if (ifma->ifma_addr->sa_family != AF_LINK)
764 * Program the first XM_RXFILT_MAX multicast groups
765 * into the perfect filter.
767 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
768 maddr, ETHER_ADDR_LEN);
769 if (i < XM_RXFILT_MAX) {
770 sk_setfilt(sc_if, maddr, i);
771 mode |= XM_MODE_RX_USE_PERFECT;
775 h = sk_xmchash((const uint8_t *)maddr);
777 hashes[0] |= (1 << h);
779 hashes[1] |= (1 << (h - 32));
780 mode |= XM_MODE_RX_USE_HASH;
782 if_maddr_runlock(ifp);
785 SK_XM_WRITE_4(sc_if, XM_MODE, mode);
786 SK_XM_WRITE_4(sc_if, XM_MAR0, hashes[0]);
787 SK_XM_WRITE_4(sc_if, XM_MAR2, hashes[1]);
791 sk_rxfilter_yukon(sc_if)
792 struct sk_if_softc *sc_if;
795 u_int32_t crc, hashes[2] = { 0, 0 }, mode;
796 struct ifmultiaddr *ifma;
798 SK_IF_LOCK_ASSERT(sc_if);
801 mode = SK_YU_READ_2(sc_if, YUKON_RCR);
802 if (ifp->if_flags & IFF_PROMISC)
803 mode &= ~(YU_RCR_UFLEN | YU_RCR_MUFLEN);
804 else if (ifp->if_flags & IFF_ALLMULTI) {
805 mode |= YU_RCR_UFLEN | YU_RCR_MUFLEN;
806 hashes[0] = 0xFFFFFFFF;
807 hashes[1] = 0xFFFFFFFF;
809 mode |= YU_RCR_UFLEN;
811 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
812 if (ifma->ifma_addr->sa_family != AF_LINK)
814 crc = ether_crc32_be(LLADDR((struct sockaddr_dl *)
815 ifma->ifma_addr), ETHER_ADDR_LEN);
816 /* Just want the 6 least significant bits. */
818 /* Set the corresponding bit in the hash table. */
819 hashes[crc >> 5] |= 1 << (crc & 0x1f);
821 if_maddr_runlock(ifp);
822 if (hashes[0] != 0 || hashes[1] != 0)
823 mode |= YU_RCR_MUFLEN;
826 SK_YU_WRITE_2(sc_if, YUKON_MCAH1, hashes[0] & 0xffff);
827 SK_YU_WRITE_2(sc_if, YUKON_MCAH2, (hashes[0] >> 16) & 0xffff);
828 SK_YU_WRITE_2(sc_if, YUKON_MCAH3, hashes[1] & 0xffff);
829 SK_YU_WRITE_2(sc_if, YUKON_MCAH4, (hashes[1] >> 16) & 0xffff);
830 SK_YU_WRITE_2(sc_if, YUKON_RCR, mode);
834 sk_init_rx_ring(sc_if)
835 struct sk_if_softc *sc_if;
837 struct sk_ring_data *rd;
839 u_int32_t csum_start;
842 sc_if->sk_cdata.sk_rx_cons = 0;
844 csum_start = (ETHER_HDR_LEN + sizeof(struct ip)) << 16 |
846 rd = &sc_if->sk_rdata;
847 bzero(rd->sk_rx_ring, sizeof(struct sk_rx_desc) * SK_RX_RING_CNT);
848 for (i = 0; i < SK_RX_RING_CNT; i++) {
849 if (sk_newbuf(sc_if, i) != 0)
851 if (i == (SK_RX_RING_CNT - 1))
852 addr = SK_RX_RING_ADDR(sc_if, 0);
854 addr = SK_RX_RING_ADDR(sc_if, i + 1);
855 rd->sk_rx_ring[i].sk_next = htole32(SK_ADDR_LO(addr));
856 rd->sk_rx_ring[i].sk_csum_start = htole32(csum_start);
859 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag,
860 sc_if->sk_cdata.sk_rx_ring_map,
861 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
867 sk_init_jumbo_rx_ring(sc_if)
868 struct sk_if_softc *sc_if;
870 struct sk_ring_data *rd;
872 u_int32_t csum_start;
875 sc_if->sk_cdata.sk_jumbo_rx_cons = 0;
877 csum_start = ((ETHER_HDR_LEN + sizeof(struct ip)) << 16) |
879 rd = &sc_if->sk_rdata;
880 bzero(rd->sk_jumbo_rx_ring,
881 sizeof(struct sk_rx_desc) * SK_JUMBO_RX_RING_CNT);
882 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) {
883 if (sk_jumbo_newbuf(sc_if, i) != 0)
885 if (i == (SK_JUMBO_RX_RING_CNT - 1))
886 addr = SK_JUMBO_RX_RING_ADDR(sc_if, 0);
888 addr = SK_JUMBO_RX_RING_ADDR(sc_if, i + 1);
889 rd->sk_jumbo_rx_ring[i].sk_next = htole32(SK_ADDR_LO(addr));
890 rd->sk_jumbo_rx_ring[i].sk_csum_start = htole32(csum_start);
893 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag,
894 sc_if->sk_cdata.sk_jumbo_rx_ring_map,
895 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
901 sk_init_tx_ring(sc_if)
902 struct sk_if_softc *sc_if;
904 struct sk_ring_data *rd;
905 struct sk_txdesc *txd;
909 STAILQ_INIT(&sc_if->sk_cdata.sk_txfreeq);
910 STAILQ_INIT(&sc_if->sk_cdata.sk_txbusyq);
912 sc_if->sk_cdata.sk_tx_prod = 0;
913 sc_if->sk_cdata.sk_tx_cons = 0;
914 sc_if->sk_cdata.sk_tx_cnt = 0;
916 rd = &sc_if->sk_rdata;
917 bzero(rd->sk_tx_ring, sizeof(struct sk_tx_desc) * SK_TX_RING_CNT);
918 for (i = 0; i < SK_TX_RING_CNT; i++) {
919 if (i == (SK_TX_RING_CNT - 1))
920 addr = SK_TX_RING_ADDR(sc_if, 0);
922 addr = SK_TX_RING_ADDR(sc_if, i + 1);
923 rd->sk_tx_ring[i].sk_next = htole32(SK_ADDR_LO(addr));
924 txd = &sc_if->sk_cdata.sk_txdesc[i];
925 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txfreeq, txd, tx_q);
928 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag,
929 sc_if->sk_cdata.sk_tx_ring_map,
930 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
934 sk_discard_rxbuf(sc_if, idx)
935 struct sk_if_softc *sc_if;
938 struct sk_rx_desc *r;
939 struct sk_rxdesc *rxd;
943 r = &sc_if->sk_rdata.sk_rx_ring[idx];
944 rxd = &sc_if->sk_cdata.sk_rxdesc[idx];
946 r->sk_ctl = htole32(m->m_len | SK_RXSTAT | SK_OPCODE_CSUM);
950 sk_discard_jumbo_rxbuf(sc_if, idx)
951 struct sk_if_softc *sc_if;
954 struct sk_rx_desc *r;
955 struct sk_rxdesc *rxd;
958 r = &sc_if->sk_rdata.sk_jumbo_rx_ring[idx];
959 rxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[idx];
961 r->sk_ctl = htole32(m->m_len | SK_RXSTAT | SK_OPCODE_CSUM);
965 sk_newbuf(sc_if, idx)
966 struct sk_if_softc *sc_if;
969 struct sk_rx_desc *r;
970 struct sk_rxdesc *rxd;
972 bus_dma_segment_t segs[1];
976 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
979 m->m_len = m->m_pkthdr.len = MCLBYTES;
980 m_adj(m, ETHER_ALIGN);
982 if (bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_rx_tag,
983 sc_if->sk_cdata.sk_rx_sparemap, m, segs, &nsegs, 0) != 0) {
987 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
989 rxd = &sc_if->sk_cdata.sk_rxdesc[idx];
990 if (rxd->rx_m != NULL) {
991 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap,
992 BUS_DMASYNC_POSTREAD);
993 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap);
995 map = rxd->rx_dmamap;
996 rxd->rx_dmamap = sc_if->sk_cdata.sk_rx_sparemap;
997 sc_if->sk_cdata.sk_rx_sparemap = map;
998 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap,
999 BUS_DMASYNC_PREREAD);
1001 r = &sc_if->sk_rdata.sk_rx_ring[idx];
1002 r->sk_data_lo = htole32(SK_ADDR_LO(segs[0].ds_addr));
1003 r->sk_data_hi = htole32(SK_ADDR_HI(segs[0].ds_addr));
1004 r->sk_ctl = htole32(segs[0].ds_len | SK_RXSTAT | SK_OPCODE_CSUM);
1010 sk_jumbo_newbuf(sc_if, idx)
1011 struct sk_if_softc *sc_if;
1014 struct sk_rx_desc *r;
1015 struct sk_rxdesc *rxd;
1017 bus_dma_segment_t segs[1];
1021 m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUM9BYTES);
1024 if ((m->m_flags & M_EXT) == 0) {
1028 m->m_pkthdr.len = m->m_len = MJUM9BYTES;
1030 * Adjust alignment so packet payload begins on a
1031 * longword boundary. Mandatory for Alpha, useful on
1034 m_adj(m, ETHER_ALIGN);
1036 if (bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_jumbo_rx_tag,
1037 sc_if->sk_cdata.sk_jumbo_rx_sparemap, m, segs, &nsegs, 0) != 0) {
1041 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
1043 rxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[idx];
1044 if (rxd->rx_m != NULL) {
1045 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag, rxd->rx_dmamap,
1046 BUS_DMASYNC_POSTREAD);
1047 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_tag,
1050 map = rxd->rx_dmamap;
1051 rxd->rx_dmamap = sc_if->sk_cdata.sk_jumbo_rx_sparemap;
1052 sc_if->sk_cdata.sk_jumbo_rx_sparemap = map;
1053 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag, rxd->rx_dmamap,
1054 BUS_DMASYNC_PREREAD);
1056 r = &sc_if->sk_rdata.sk_jumbo_rx_ring[idx];
1057 r->sk_data_lo = htole32(SK_ADDR_LO(segs[0].ds_addr));
1058 r->sk_data_hi = htole32(SK_ADDR_HI(segs[0].ds_addr));
1059 r->sk_ctl = htole32(segs[0].ds_len | SK_RXSTAT | SK_OPCODE_CSUM);
1065 * Set media options.
1071 struct sk_if_softc *sc_if = ifp->if_softc;
1072 struct mii_data *mii;
1074 mii = device_get_softc(sc_if->sk_miibus);
1082 * Report current media status.
1085 sk_ifmedia_sts(ifp, ifmr)
1087 struct ifmediareq *ifmr;
1089 struct sk_if_softc *sc_if;
1090 struct mii_data *mii;
1092 sc_if = ifp->if_softc;
1093 mii = device_get_softc(sc_if->sk_miibus);
1096 ifmr->ifm_active = mii->mii_media_active;
1097 ifmr->ifm_status = mii->mii_media_status;
1103 sk_ioctl(ifp, command, data)
1108 struct sk_if_softc *sc_if = ifp->if_softc;
1109 struct ifreq *ifr = (struct ifreq *) data;
1111 struct mii_data *mii;
1116 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > SK_JUMBO_MTU)
1118 else if (ifp->if_mtu != ifr->ifr_mtu) {
1119 if (sc_if->sk_jumbo_disable != 0 &&
1120 ifr->ifr_mtu > SK_MAX_FRAMELEN)
1124 ifp->if_mtu = ifr->ifr_mtu;
1125 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1126 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1127 sk_init_locked(sc_if);
1129 SK_IF_UNLOCK(sc_if);
1135 if (ifp->if_flags & IFF_UP) {
1136 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1137 if ((ifp->if_flags ^ sc_if->sk_if_flags)
1138 & (IFF_PROMISC | IFF_ALLMULTI))
1141 sk_init_locked(sc_if);
1143 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1146 sc_if->sk_if_flags = ifp->if_flags;
1147 SK_IF_UNLOCK(sc_if);
1152 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1154 SK_IF_UNLOCK(sc_if);
1158 mii = device_get_softc(sc_if->sk_miibus);
1159 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
1163 if (sc_if->sk_softc->sk_type == SK_GENESIS) {
1164 SK_IF_UNLOCK(sc_if);
1167 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1168 if ((mask & IFCAP_TXCSUM) != 0 &&
1169 (IFCAP_TXCSUM & ifp->if_capabilities) != 0) {
1170 ifp->if_capenable ^= IFCAP_TXCSUM;
1171 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0)
1172 ifp->if_hwassist |= SK_CSUM_FEATURES;
1174 ifp->if_hwassist &= ~SK_CSUM_FEATURES;
1176 if ((mask & IFCAP_RXCSUM) != 0 &&
1177 (IFCAP_RXCSUM & ifp->if_capabilities) != 0)
1178 ifp->if_capenable ^= IFCAP_RXCSUM;
1179 SK_IF_UNLOCK(sc_if);
1182 error = ether_ioctl(ifp, command, data);
1190 * Probe for a SysKonnect GEnesis chip. Check the PCI vendor and device
1191 * IDs against our list and return a device name if we find a match.
1197 struct sk_type *t = sk_devs;
1199 while(t->sk_name != NULL) {
1200 if ((pci_get_vendor(dev) == t->sk_vid) &&
1201 (pci_get_device(dev) == t->sk_did)) {
1203 * Only attach to rev. 2 of the Linksys EG1032 adapter.
1204 * Rev. 3 is supported by re(4).
1206 if ((t->sk_vid == VENDORID_LINKSYS) &&
1207 (t->sk_did == DEVICEID_LINKSYS_EG1032) &&
1208 (pci_get_subdevice(dev) !=
1209 SUBDEVICEID_LINKSYS_EG1032_REV2)) {
1213 device_set_desc(dev, t->sk_name);
1214 return (BUS_PROBE_DEFAULT);
1223 * Force the GEnesis into reset, then bring it out of reset.
1227 struct sk_softc *sc;
1230 CSR_WRITE_2(sc, SK_CSR, SK_CSR_SW_RESET);
1231 CSR_WRITE_2(sc, SK_CSR, SK_CSR_MASTER_RESET);
1232 if (SK_YUKON_FAMILY(sc->sk_type))
1233 CSR_WRITE_2(sc, SK_LINK_CTRL, SK_LINK_RESET_SET);
1236 CSR_WRITE_2(sc, SK_CSR, SK_CSR_SW_UNRESET);
1238 CSR_WRITE_2(sc, SK_CSR, SK_CSR_MASTER_UNRESET);
1239 if (SK_YUKON_FAMILY(sc->sk_type))
1240 CSR_WRITE_2(sc, SK_LINK_CTRL, SK_LINK_RESET_CLEAR);
1242 if (sc->sk_type == SK_GENESIS) {
1243 /* Configure packet arbiter */
1244 sk_win_write_2(sc, SK_PKTARB_CTL, SK_PKTARBCTL_UNRESET);
1245 sk_win_write_2(sc, SK_RXPA1_TINIT, SK_PKTARB_TIMEOUT);
1246 sk_win_write_2(sc, SK_TXPA1_TINIT, SK_PKTARB_TIMEOUT);
1247 sk_win_write_2(sc, SK_RXPA2_TINIT, SK_PKTARB_TIMEOUT);
1248 sk_win_write_2(sc, SK_TXPA2_TINIT, SK_PKTARB_TIMEOUT);
1251 /* Enable RAM interface */
1252 sk_win_write_4(sc, SK_RAMCTL, SK_RAMCTL_UNRESET);
1255 * Configure interrupt moderation. The moderation timer
1256 * defers interrupts specified in the interrupt moderation
1257 * timer mask based on the timeout specified in the interrupt
1258 * moderation timer init register. Each bit in the timer
1259 * register represents one tick, so to specify a timeout in
1260 * microseconds, we have to multiply by the correct number of
1261 * ticks-per-microsecond.
1263 switch (sc->sk_type) {
1265 sc->sk_int_ticks = SK_IMTIMER_TICKS_GENESIS;
1268 sc->sk_int_ticks = SK_IMTIMER_TICKS_YUKON;
1272 device_printf(sc->sk_dev, "interrupt moderation is %d us\n",
1274 sk_win_write_4(sc, SK_IMTIMERINIT, SK_IM_USECS(sc->sk_int_mod,
1276 sk_win_write_4(sc, SK_IMMR, SK_ISR_TX1_S_EOF|SK_ISR_TX2_S_EOF|
1277 SK_ISR_RX1_EOF|SK_ISR_RX2_EOF);
1278 sk_win_write_1(sc, SK_IMTIMERCTL, SK_IMCTL_START);
1287 struct sk_softc *sc;
1289 sc = device_get_softc(device_get_parent(dev));
1292 * Not much to do here. We always know there will be
1293 * at least one XMAC present, and if there are two,
1294 * skc_attach() will create a second device instance
1297 switch (sc->sk_type) {
1299 device_set_desc(dev, "XaQti Corp. XMAC II");
1304 device_set_desc(dev, "Marvell Semiconductor, Inc. Yukon");
1308 return (BUS_PROBE_DEFAULT);
1312 * Each XMAC chip is attached as a separate logical IP interface.
1313 * Single port cards will have only one logical interface of course.
1319 struct sk_softc *sc;
1320 struct sk_if_softc *sc_if;
1323 int error, i, phy, port;
1325 u_char inv_mac[] = {0, 0, 0, 0, 0, 0};
1331 sc_if = device_get_softc(dev);
1332 sc = device_get_softc(device_get_parent(dev));
1333 port = *(int *)device_get_ivars(dev);
1335 sc_if->sk_if_dev = dev;
1336 sc_if->sk_port = port;
1337 sc_if->sk_softc = sc;
1338 sc->sk_if[port] = sc_if;
1339 if (port == SK_PORT_A)
1340 sc_if->sk_tx_bmu = SK_BMU_TXS_CSR0;
1341 if (port == SK_PORT_B)
1342 sc_if->sk_tx_bmu = SK_BMU_TXS_CSR1;
1344 callout_init_mtx(&sc_if->sk_tick_ch, &sc_if->sk_softc->sk_mtx, 0);
1345 callout_init_mtx(&sc_if->sk_watchdog_ch, &sc_if->sk_softc->sk_mtx, 0);
1347 if (sk_dma_alloc(sc_if) != 0) {
1351 sk_dma_jumbo_alloc(sc_if);
1353 ifp = sc_if->sk_ifp = if_alloc(IFT_ETHER);
1355 device_printf(sc_if->sk_if_dev, "can not if_alloc()\n");
1359 ifp->if_softc = sc_if;
1360 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
1361 ifp->if_mtu = ETHERMTU;
1362 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
1364 * SK_GENESIS has a bug in checksum offload - From linux.
1366 if (sc_if->sk_softc->sk_type != SK_GENESIS) {
1367 ifp->if_capabilities = IFCAP_TXCSUM | IFCAP_RXCSUM;
1368 ifp->if_hwassist = 0;
1370 ifp->if_capabilities = 0;
1371 ifp->if_hwassist = 0;
1373 ifp->if_capenable = ifp->if_capabilities;
1375 * Some revision of Yukon controller generates corrupted
1376 * frame when TX checksum offloading is enabled. The
1377 * frame has a valid checksum value so payload might be
1378 * modified during TX checksum calculation. Disable TX
1379 * checksum offloading but give users chance to enable it
1380 * when they know their controller works without problems
1381 * with TX checksum offloading.
1383 ifp->if_capenable &= ~IFCAP_TXCSUM;
1384 ifp->if_ioctl = sk_ioctl;
1385 ifp->if_start = sk_start;
1386 ifp->if_init = sk_init;
1387 IFQ_SET_MAXLEN(&ifp->if_snd, SK_TX_RING_CNT - 1);
1388 ifp->if_snd.ifq_drv_maxlen = SK_TX_RING_CNT - 1;
1389 IFQ_SET_READY(&ifp->if_snd);
1392 * Get station address for this interface. Note that
1393 * dual port cards actually come with three station
1394 * addresses: one for each port, plus an extra. The
1395 * extra one is used by the SysKonnect driver software
1396 * as a 'virtual' station address for when both ports
1397 * are operating in failover mode. Currently we don't
1398 * use this extra address.
1401 for (i = 0; i < ETHER_ADDR_LEN; i++)
1403 sk_win_read_1(sc, SK_MAC0_0 + (port * 8) + i);
1405 /* Verify whether the station address is invalid or not. */
1406 if (bcmp(eaddr, inv_mac, sizeof(inv_mac)) == 0) {
1407 device_printf(sc_if->sk_if_dev,
1408 "Generating random ethernet address\n");
1411 * Set OUI to convenient locally assigned address. 'b'
1412 * is 0x62, which has the locally assigned bit set, and
1413 * the broadcast/multicast bit clear.
1418 eaddr[3] = (r >> 16) & 0xff;
1419 eaddr[4] = (r >> 8) & 0xff;
1420 eaddr[5] = (r >> 0) & 0xff;
1423 * Set up RAM buffer addresses. The NIC will have a certain
1424 * amount of SRAM on it, somewhere between 512K and 2MB. We
1425 * need to divide this up a) between the transmitter and
1426 * receiver and b) between the two XMACs, if this is a
1427 * dual port NIC. Our algotithm is to divide up the memory
1428 * evenly so that everyone gets a fair share.
1430 * Just to be contrary, Yukon2 appears to have separate memory
1433 if (sk_win_read_1(sc, SK_CONFIG) & SK_CONFIG_SINGLEMAC) {
1434 u_int32_t chunk, val;
1436 chunk = sc->sk_ramsize / 2;
1437 val = sc->sk_rboff / sizeof(u_int64_t);
1438 sc_if->sk_rx_ramstart = val;
1439 val += (chunk / sizeof(u_int64_t));
1440 sc_if->sk_rx_ramend = val - 1;
1441 sc_if->sk_tx_ramstart = val;
1442 val += (chunk / sizeof(u_int64_t));
1443 sc_if->sk_tx_ramend = val - 1;
1445 u_int32_t chunk, val;
1447 chunk = sc->sk_ramsize / 4;
1448 val = (sc->sk_rboff + (chunk * 2 * sc_if->sk_port)) /
1450 sc_if->sk_rx_ramstart = val;
1451 val += (chunk / sizeof(u_int64_t));
1452 sc_if->sk_rx_ramend = val - 1;
1453 sc_if->sk_tx_ramstart = val;
1454 val += (chunk / sizeof(u_int64_t));
1455 sc_if->sk_tx_ramend = val - 1;
1458 /* Read and save PHY type and set PHY address */
1459 sc_if->sk_phytype = sk_win_read_1(sc, SK_EPROM1) & 0xF;
1460 if (!SK_YUKON_FAMILY(sc->sk_type)) {
1461 switch(sc_if->sk_phytype) {
1462 case SK_PHYTYPE_XMAC:
1463 sc_if->sk_phyaddr = SK_PHYADDR_XMAC;
1465 case SK_PHYTYPE_BCOM:
1466 sc_if->sk_phyaddr = SK_PHYADDR_BCOM;
1469 device_printf(sc->sk_dev, "unsupported PHY type: %d\n",
1472 SK_IF_UNLOCK(sc_if);
1476 if (sc_if->sk_phytype < SK_PHYTYPE_MARV_COPPER &&
1477 sc->sk_pmd != 'S') {
1478 /* not initialized, punt */
1479 sc_if->sk_phytype = SK_PHYTYPE_MARV_COPPER;
1480 sc->sk_coppertype = 1;
1483 sc_if->sk_phyaddr = SK_PHYADDR_MARV;
1485 if (!(sc->sk_coppertype))
1486 sc_if->sk_phytype = SK_PHYTYPE_MARV_FIBER;
1490 * Call MI attach routine. Can't hold locks when calling into ether_*.
1492 SK_IF_UNLOCK(sc_if);
1493 ether_ifattach(ifp, eaddr);
1497 * The hardware should be ready for VLAN_MTU by default:
1498 * XMAC II has 0x8100 in VLAN Tag Level 1 register initially;
1499 * YU_SMR_MFL_VLAN is set by this driver in Yukon.
1502 ifp->if_capabilities |= IFCAP_VLAN_MTU;
1503 ifp->if_capenable |= IFCAP_VLAN_MTU;
1505 * Tell the upper layer(s) we support long frames.
1506 * Must appear after the call to ether_ifattach() because
1507 * ether_ifattach() sets ifi_hdrlen to the default value.
1509 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
1515 switch (sc->sk_type) {
1517 sk_init_xmac(sc_if);
1518 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC)
1524 sk_init_yukon(sc_if);
1529 SK_IF_UNLOCK(sc_if);
1530 error = mii_attach(dev, &sc_if->sk_miibus, ifp, sk_ifmedia_upd,
1531 sk_ifmedia_sts, BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, 0);
1533 device_printf(sc_if->sk_if_dev, "attaching PHYs failed\n");
1534 ether_ifdetach(ifp);
1540 /* Access should be ok even though lock has been dropped */
1541 sc->sk_if[port] = NULL;
1549 * Attach the interface. Allocate softc structures, do ifmedia
1550 * setup and ethernet/BPF attach.
1556 struct sk_softc *sc;
1557 int error = 0, *port;
1559 const char *pname = NULL;
1562 sc = device_get_softc(dev);
1565 mtx_init(&sc->sk_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
1567 mtx_init(&sc->sk_mii_mtx, "sk_mii_mutex", NULL, MTX_DEF);
1569 * Map control/status registers.
1571 pci_enable_busmaster(dev);
1573 /* Allocate resources */
1574 #ifdef SK_USEIOSPACE
1575 sc->sk_res_spec = sk_res_spec_io;
1577 sc->sk_res_spec = sk_res_spec_mem;
1579 error = bus_alloc_resources(dev, sc->sk_res_spec, sc->sk_res);
1581 if (sc->sk_res_spec == sk_res_spec_mem)
1582 sc->sk_res_spec = sk_res_spec_io;
1584 sc->sk_res_spec = sk_res_spec_mem;
1585 error = bus_alloc_resources(dev, sc->sk_res_spec, sc->sk_res);
1587 device_printf(dev, "couldn't allocate %s resources\n",
1588 sc->sk_res_spec == sk_res_spec_mem ? "memory" :
1594 sc->sk_type = sk_win_read_1(sc, SK_CHIPVER);
1595 sc->sk_rev = (sk_win_read_1(sc, SK_CONFIG) >> 4) & 0xf;
1597 /* Bail out if chip is not recognized. */
1598 if (sc->sk_type != SK_GENESIS && !SK_YUKON_FAMILY(sc->sk_type)) {
1599 device_printf(dev, "unknown device: chipver=%02x, rev=%x\n",
1600 sc->sk_type, sc->sk_rev);
1605 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
1606 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
1607 OID_AUTO, "int_mod", CTLTYPE_INT|CTLFLAG_RW,
1608 &sc->sk_int_mod, 0, sysctl_hw_sk_int_mod, "I",
1609 "SK interrupt moderation");
1611 /* Pull in device tunables. */
1612 sc->sk_int_mod = SK_IM_DEFAULT;
1613 error = resource_int_value(device_get_name(dev), device_get_unit(dev),
1614 "int_mod", &sc->sk_int_mod);
1616 if (sc->sk_int_mod < SK_IM_MIN ||
1617 sc->sk_int_mod > SK_IM_MAX) {
1618 device_printf(dev, "int_mod value out of range; "
1619 "using default: %d\n", SK_IM_DEFAULT);
1620 sc->sk_int_mod = SK_IM_DEFAULT;
1624 /* Reset the adapter. */
1627 skrs = sk_win_read_1(sc, SK_EPROM0);
1628 if (sc->sk_type == SK_GENESIS) {
1629 /* Read and save RAM size and RAMbuffer offset */
1631 case SK_RAMSIZE_512K_64:
1632 sc->sk_ramsize = 0x80000;
1633 sc->sk_rboff = SK_RBOFF_0;
1635 case SK_RAMSIZE_1024K_64:
1636 sc->sk_ramsize = 0x100000;
1637 sc->sk_rboff = SK_RBOFF_80000;
1639 case SK_RAMSIZE_1024K_128:
1640 sc->sk_ramsize = 0x100000;
1641 sc->sk_rboff = SK_RBOFF_0;
1643 case SK_RAMSIZE_2048K_128:
1644 sc->sk_ramsize = 0x200000;
1645 sc->sk_rboff = SK_RBOFF_0;
1648 device_printf(dev, "unknown ram size: %d\n", skrs);
1652 } else { /* SK_YUKON_FAMILY */
1654 sc->sk_ramsize = 0x20000;
1656 sc->sk_ramsize = skrs * (1<<12);
1657 sc->sk_rboff = SK_RBOFF_0;
1660 /* Read and save physical media type */
1661 sc->sk_pmd = sk_win_read_1(sc, SK_PMDTYPE);
1663 if (sc->sk_pmd == 'T' || sc->sk_pmd == '1')
1664 sc->sk_coppertype = 1;
1666 sc->sk_coppertype = 0;
1668 /* Determine whether to name it with VPD PN or just make it up.
1669 * Marvell Yukon VPD PN seems to freqently be bogus. */
1670 switch (pci_get_device(dev)) {
1671 case DEVICEID_SK_V1:
1672 case DEVICEID_BELKIN_5005:
1673 case DEVICEID_3COM_3C940:
1674 case DEVICEID_LINKSYS_EG1032:
1675 case DEVICEID_DLINK_DGE530T_A1:
1676 case DEVICEID_DLINK_DGE530T_B1:
1677 /* Stay with VPD PN. */
1678 (void) pci_get_vpd_ident(dev, &pname);
1680 case DEVICEID_SK_V2:
1681 /* YUKON VPD PN might bear no resemblance to reality. */
1682 switch (sc->sk_type) {
1684 /* Stay with VPD PN. */
1685 (void) pci_get_vpd_ident(dev, &pname);
1688 pname = "Marvell Yukon Gigabit Ethernet";
1691 pname = "Marvell Yukon Lite Gigabit Ethernet";
1694 pname = "Marvell Yukon LP Gigabit Ethernet";
1697 pname = "Marvell Yukon (Unknown) Gigabit Ethernet";
1701 /* Yukon Lite Rev. A0 needs special test. */
1702 if (sc->sk_type == SK_YUKON || sc->sk_type == SK_YUKON_LP) {
1706 /* Save flash address register before testing. */
1707 far = sk_win_read_4(sc, SK_EP_ADDR);
1709 sk_win_write_1(sc, SK_EP_ADDR+0x03, 0xff);
1710 testbyte = sk_win_read_1(sc, SK_EP_ADDR+0x03);
1712 if (testbyte != 0x00) {
1713 /* Yukon Lite Rev. A0 detected. */
1714 sc->sk_type = SK_YUKON_LITE;
1715 sc->sk_rev = SK_YUKON_LITE_REV_A0;
1716 /* Restore flash address register. */
1717 sk_win_write_4(sc, SK_EP_ADDR, far);
1722 device_printf(dev, "unknown device: vendor=%04x, device=%04x, "
1723 "chipver=%02x, rev=%x\n",
1724 pci_get_vendor(dev), pci_get_device(dev),
1725 sc->sk_type, sc->sk_rev);
1730 if (sc->sk_type == SK_YUKON_LITE) {
1731 switch (sc->sk_rev) {
1732 case SK_YUKON_LITE_REV_A0:
1735 case SK_YUKON_LITE_REV_A1:
1738 case SK_YUKON_LITE_REV_A3:
1749 /* Announce the product name and more VPD data if there. */
1751 device_printf(dev, "%s rev. %s(0x%x)\n",
1752 pname, revstr, sc->sk_rev);
1755 device_printf(dev, "chip ver = 0x%02x\n", sc->sk_type);
1756 device_printf(dev, "chip rev = 0x%02x\n", sc->sk_rev);
1757 device_printf(dev, "SK_EPROM0 = 0x%02x\n", skrs);
1758 device_printf(dev, "SRAM size = 0x%06x\n", sc->sk_ramsize);
1761 sc->sk_devs[SK_PORT_A] = device_add_child(dev, "sk", -1);
1762 if (sc->sk_devs[SK_PORT_A] == NULL) {
1763 device_printf(dev, "failed to add child for PORT_A\n");
1767 port = malloc(sizeof(int), M_DEVBUF, M_NOWAIT);
1769 device_printf(dev, "failed to allocate memory for "
1770 "ivars of PORT_A\n");
1775 device_set_ivars(sc->sk_devs[SK_PORT_A], port);
1777 if (!(sk_win_read_1(sc, SK_CONFIG) & SK_CONFIG_SINGLEMAC)) {
1778 sc->sk_devs[SK_PORT_B] = device_add_child(dev, "sk", -1);
1779 if (sc->sk_devs[SK_PORT_B] == NULL) {
1780 device_printf(dev, "failed to add child for PORT_B\n");
1784 port = malloc(sizeof(int), M_DEVBUF, M_NOWAIT);
1786 device_printf(dev, "failed to allocate memory for "
1787 "ivars of PORT_B\n");
1792 device_set_ivars(sc->sk_devs[SK_PORT_B], port);
1795 /* Turn on the 'driver is loaded' LED. */
1796 CSR_WRITE_2(sc, SK_LED, SK_LED_GREEN_ON);
1798 error = bus_generic_attach(dev);
1800 device_printf(dev, "failed to attach port(s)\n");
1804 /* Hook interrupt last to avoid having to lock softc */
1805 error = bus_setup_intr(dev, sc->sk_res[1], INTR_TYPE_NET|INTR_MPSAFE,
1806 NULL, sk_intr, sc, &sc->sk_intrhand);
1809 device_printf(dev, "couldn't set up irq\n");
1821 * Shutdown hardware and free up resources. This can be called any
1822 * time after the mutex has been initialized. It is called in both
1823 * the error case in attach and the normal detach case so it needs
1824 * to be careful about only freeing resources that have actually been
1831 struct sk_if_softc *sc_if;
1834 sc_if = device_get_softc(dev);
1835 KASSERT(mtx_initialized(&sc_if->sk_softc->sk_mtx),
1836 ("sk mutex not initialized in sk_detach"));
1839 ifp = sc_if->sk_ifp;
1840 /* These should only be active if attach_xmac succeeded */
1841 if (device_is_attached(dev)) {
1843 /* Can't hold locks while calling detach */
1844 SK_IF_UNLOCK(sc_if);
1845 callout_drain(&sc_if->sk_tick_ch);
1846 callout_drain(&sc_if->sk_watchdog_ch);
1847 ether_ifdetach(ifp);
1853 * We're generally called from skc_detach() which is using
1854 * device_delete_child() to get to here. It's already trashed
1855 * miibus for us, so don't do it here or we'll panic.
1858 if (sc_if->sk_miibus != NULL)
1859 device_delete_child(dev, sc_if->sk_miibus);
1861 bus_generic_detach(dev);
1862 sk_dma_jumbo_free(sc_if);
1864 SK_IF_UNLOCK(sc_if);
1873 struct sk_softc *sc;
1875 sc = device_get_softc(dev);
1876 KASSERT(mtx_initialized(&sc->sk_mtx), ("sk mutex not initialized"));
1878 if (device_is_alive(dev)) {
1879 if (sc->sk_devs[SK_PORT_A] != NULL) {
1880 free(device_get_ivars(sc->sk_devs[SK_PORT_A]), M_DEVBUF);
1881 device_delete_child(dev, sc->sk_devs[SK_PORT_A]);
1883 if (sc->sk_devs[SK_PORT_B] != NULL) {
1884 free(device_get_ivars(sc->sk_devs[SK_PORT_B]), M_DEVBUF);
1885 device_delete_child(dev, sc->sk_devs[SK_PORT_B]);
1887 bus_generic_detach(dev);
1890 if (sc->sk_intrhand)
1891 bus_teardown_intr(dev, sc->sk_res[1], sc->sk_intrhand);
1892 bus_release_resources(dev, sc->sk_res_spec, sc->sk_res);
1894 mtx_destroy(&sc->sk_mii_mtx);
1895 mtx_destroy(&sc->sk_mtx);
1900 struct sk_dmamap_arg {
1901 bus_addr_t sk_busaddr;
1905 sk_dmamap_cb(arg, segs, nseg, error)
1907 bus_dma_segment_t *segs;
1911 struct sk_dmamap_arg *ctx;
1917 ctx->sk_busaddr = segs[0].ds_addr;
1921 * Allocate jumbo buffer storage. The SysKonnect adapters support
1922 * "jumbograms" (9K frames), although SysKonnect doesn't currently
1923 * use them in their drivers. In order for us to use them, we need
1924 * large 9K receive buffers, however standard mbuf clusters are only
1925 * 2048 bytes in size. Consequently, we need to allocate and manage
1926 * our own jumbo buffer pool. Fortunately, this does not require an
1927 * excessive amount of additional code.
1931 struct sk_if_softc *sc_if;
1933 struct sk_dmamap_arg ctx;
1934 struct sk_txdesc *txd;
1935 struct sk_rxdesc *rxd;
1938 /* create parent tag */
1941 * This driver should use BUS_SPACE_MAXADDR for lowaddr argument
1942 * in bus_dma_tag_create(9) as the NIC would support DAC mode.
1943 * However bz@ reported that it does not work on amd64 with > 4GB
1944 * RAM. Until we have more clues of the breakage, disable DAC mode
1945 * by limiting DMA address to be in 32bit address space.
1947 error = bus_dma_tag_create(
1948 bus_get_dma_tag(sc_if->sk_if_dev),/* parent */
1949 1, 0, /* algnmnt, boundary */
1950 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1951 BUS_SPACE_MAXADDR, /* highaddr */
1952 NULL, NULL, /* filter, filterarg */
1953 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
1955 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1957 NULL, NULL, /* lockfunc, lockarg */
1958 &sc_if->sk_cdata.sk_parent_tag);
1960 device_printf(sc_if->sk_if_dev,
1961 "failed to create parent DMA tag\n");
1965 /* create tag for Tx ring */
1966 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */
1967 SK_RING_ALIGN, 0, /* algnmnt, boundary */
1968 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1969 BUS_SPACE_MAXADDR, /* highaddr */
1970 NULL, NULL, /* filter, filterarg */
1971 SK_TX_RING_SZ, /* maxsize */
1973 SK_TX_RING_SZ, /* maxsegsize */
1975 NULL, NULL, /* lockfunc, lockarg */
1976 &sc_if->sk_cdata.sk_tx_ring_tag);
1978 device_printf(sc_if->sk_if_dev,
1979 "failed to allocate Tx ring DMA tag\n");
1983 /* create tag for Rx ring */
1984 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */
1985 SK_RING_ALIGN, 0, /* algnmnt, boundary */
1986 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1987 BUS_SPACE_MAXADDR, /* highaddr */
1988 NULL, NULL, /* filter, filterarg */
1989 SK_RX_RING_SZ, /* maxsize */
1991 SK_RX_RING_SZ, /* maxsegsize */
1993 NULL, NULL, /* lockfunc, lockarg */
1994 &sc_if->sk_cdata.sk_rx_ring_tag);
1996 device_printf(sc_if->sk_if_dev,
1997 "failed to allocate Rx ring DMA tag\n");
2001 /* create tag for Tx buffers */
2002 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */
2003 1, 0, /* algnmnt, boundary */
2004 BUS_SPACE_MAXADDR, /* lowaddr */
2005 BUS_SPACE_MAXADDR, /* highaddr */
2006 NULL, NULL, /* filter, filterarg */
2007 MCLBYTES * SK_MAXTXSEGS, /* maxsize */
2008 SK_MAXTXSEGS, /* nsegments */
2009 MCLBYTES, /* maxsegsize */
2011 NULL, NULL, /* lockfunc, lockarg */
2012 &sc_if->sk_cdata.sk_tx_tag);
2014 device_printf(sc_if->sk_if_dev,
2015 "failed to allocate Tx DMA tag\n");
2019 /* create tag for Rx buffers */
2020 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */
2021 1, 0, /* algnmnt, boundary */
2022 BUS_SPACE_MAXADDR, /* lowaddr */
2023 BUS_SPACE_MAXADDR, /* highaddr */
2024 NULL, NULL, /* filter, filterarg */
2025 MCLBYTES, /* maxsize */
2027 MCLBYTES, /* maxsegsize */
2029 NULL, NULL, /* lockfunc, lockarg */
2030 &sc_if->sk_cdata.sk_rx_tag);
2032 device_printf(sc_if->sk_if_dev,
2033 "failed to allocate Rx DMA tag\n");
2037 /* allocate DMA'able memory and load the DMA map for Tx ring */
2038 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_tx_ring_tag,
2039 (void **)&sc_if->sk_rdata.sk_tx_ring, BUS_DMA_NOWAIT | BUS_DMA_ZERO,
2040 &sc_if->sk_cdata.sk_tx_ring_map);
2042 device_printf(sc_if->sk_if_dev,
2043 "failed to allocate DMA'able memory for Tx ring\n");
2048 error = bus_dmamap_load(sc_if->sk_cdata.sk_tx_ring_tag,
2049 sc_if->sk_cdata.sk_tx_ring_map, sc_if->sk_rdata.sk_tx_ring,
2050 SK_TX_RING_SZ, sk_dmamap_cb, &ctx, BUS_DMA_NOWAIT);
2052 device_printf(sc_if->sk_if_dev,
2053 "failed to load DMA'able memory for Tx ring\n");
2056 sc_if->sk_rdata.sk_tx_ring_paddr = ctx.sk_busaddr;
2058 /* allocate DMA'able memory and load the DMA map for Rx ring */
2059 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_rx_ring_tag,
2060 (void **)&sc_if->sk_rdata.sk_rx_ring, BUS_DMA_NOWAIT | BUS_DMA_ZERO,
2061 &sc_if->sk_cdata.sk_rx_ring_map);
2063 device_printf(sc_if->sk_if_dev,
2064 "failed to allocate DMA'able memory for Rx ring\n");
2069 error = bus_dmamap_load(sc_if->sk_cdata.sk_rx_ring_tag,
2070 sc_if->sk_cdata.sk_rx_ring_map, sc_if->sk_rdata.sk_rx_ring,
2071 SK_RX_RING_SZ, sk_dmamap_cb, &ctx, BUS_DMA_NOWAIT);
2073 device_printf(sc_if->sk_if_dev,
2074 "failed to load DMA'able memory for Rx ring\n");
2077 sc_if->sk_rdata.sk_rx_ring_paddr = ctx.sk_busaddr;
2079 /* create DMA maps for Tx buffers */
2080 for (i = 0; i < SK_TX_RING_CNT; i++) {
2081 txd = &sc_if->sk_cdata.sk_txdesc[i];
2083 txd->tx_dmamap = NULL;
2084 error = bus_dmamap_create(sc_if->sk_cdata.sk_tx_tag, 0,
2087 device_printf(sc_if->sk_if_dev,
2088 "failed to create Tx dmamap\n");
2093 /* create DMA maps for Rx buffers */
2094 if ((error = bus_dmamap_create(sc_if->sk_cdata.sk_rx_tag, 0,
2095 &sc_if->sk_cdata.sk_rx_sparemap)) != 0) {
2096 device_printf(sc_if->sk_if_dev,
2097 "failed to create spare Rx dmamap\n");
2100 for (i = 0; i < SK_RX_RING_CNT; i++) {
2101 rxd = &sc_if->sk_cdata.sk_rxdesc[i];
2103 rxd->rx_dmamap = NULL;
2104 error = bus_dmamap_create(sc_if->sk_cdata.sk_rx_tag, 0,
2107 device_printf(sc_if->sk_if_dev,
2108 "failed to create Rx dmamap\n");
2118 sk_dma_jumbo_alloc(sc_if)
2119 struct sk_if_softc *sc_if;
2121 struct sk_dmamap_arg ctx;
2122 struct sk_rxdesc *jrxd;
2125 if (jumbo_disable != 0) {
2126 device_printf(sc_if->sk_if_dev, "disabling jumbo frame support\n");
2127 sc_if->sk_jumbo_disable = 1;
2130 /* create tag for jumbo Rx ring */
2131 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */
2132 SK_RING_ALIGN, 0, /* algnmnt, boundary */
2133 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
2134 BUS_SPACE_MAXADDR, /* highaddr */
2135 NULL, NULL, /* filter, filterarg */
2136 SK_JUMBO_RX_RING_SZ, /* maxsize */
2138 SK_JUMBO_RX_RING_SZ, /* maxsegsize */
2140 NULL, NULL, /* lockfunc, lockarg */
2141 &sc_if->sk_cdata.sk_jumbo_rx_ring_tag);
2143 device_printf(sc_if->sk_if_dev,
2144 "failed to allocate jumbo Rx ring DMA tag\n");
2148 /* create tag for jumbo Rx buffers */
2149 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */
2150 1, 0, /* algnmnt, boundary */
2151 BUS_SPACE_MAXADDR, /* lowaddr */
2152 BUS_SPACE_MAXADDR, /* highaddr */
2153 NULL, NULL, /* filter, filterarg */
2154 MJUM9BYTES, /* maxsize */
2156 MJUM9BYTES, /* maxsegsize */
2158 NULL, NULL, /* lockfunc, lockarg */
2159 &sc_if->sk_cdata.sk_jumbo_rx_tag);
2161 device_printf(sc_if->sk_if_dev,
2162 "failed to allocate jumbo Rx DMA tag\n");
2166 /* allocate DMA'able memory and load the DMA map for jumbo Rx ring */
2167 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_jumbo_rx_ring_tag,
2168 (void **)&sc_if->sk_rdata.sk_jumbo_rx_ring,
2169 BUS_DMA_NOWAIT|BUS_DMA_ZERO, &sc_if->sk_cdata.sk_jumbo_rx_ring_map);
2171 device_printf(sc_if->sk_if_dev,
2172 "failed to allocate DMA'able memory for jumbo Rx ring\n");
2177 error = bus_dmamap_load(sc_if->sk_cdata.sk_jumbo_rx_ring_tag,
2178 sc_if->sk_cdata.sk_jumbo_rx_ring_map,
2179 sc_if->sk_rdata.sk_jumbo_rx_ring, SK_JUMBO_RX_RING_SZ, sk_dmamap_cb,
2180 &ctx, BUS_DMA_NOWAIT);
2182 device_printf(sc_if->sk_if_dev,
2183 "failed to load DMA'able memory for jumbo Rx ring\n");
2186 sc_if->sk_rdata.sk_jumbo_rx_ring_paddr = ctx.sk_busaddr;
2188 /* create DMA maps for jumbo Rx buffers */
2189 if ((error = bus_dmamap_create(sc_if->sk_cdata.sk_jumbo_rx_tag, 0,
2190 &sc_if->sk_cdata.sk_jumbo_rx_sparemap)) != 0) {
2191 device_printf(sc_if->sk_if_dev,
2192 "failed to create spare jumbo Rx dmamap\n");
2195 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) {
2196 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[i];
2198 jrxd->rx_dmamap = NULL;
2199 error = bus_dmamap_create(sc_if->sk_cdata.sk_jumbo_rx_tag, 0,
2202 device_printf(sc_if->sk_if_dev,
2203 "failed to create jumbo Rx dmamap\n");
2211 sk_dma_jumbo_free(sc_if);
2212 device_printf(sc_if->sk_if_dev, "disabling jumbo frame support due to "
2213 "resource shortage\n");
2214 sc_if->sk_jumbo_disable = 1;
2220 struct sk_if_softc *sc_if;
2222 struct sk_txdesc *txd;
2223 struct sk_rxdesc *rxd;
2227 if (sc_if->sk_cdata.sk_tx_ring_tag) {
2228 if (sc_if->sk_cdata.sk_tx_ring_map)
2229 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_ring_tag,
2230 sc_if->sk_cdata.sk_tx_ring_map);
2231 if (sc_if->sk_cdata.sk_tx_ring_map &&
2232 sc_if->sk_rdata.sk_tx_ring)
2233 bus_dmamem_free(sc_if->sk_cdata.sk_tx_ring_tag,
2234 sc_if->sk_rdata.sk_tx_ring,
2235 sc_if->sk_cdata.sk_tx_ring_map);
2236 sc_if->sk_rdata.sk_tx_ring = NULL;
2237 sc_if->sk_cdata.sk_tx_ring_map = NULL;
2238 bus_dma_tag_destroy(sc_if->sk_cdata.sk_tx_ring_tag);
2239 sc_if->sk_cdata.sk_tx_ring_tag = NULL;
2242 if (sc_if->sk_cdata.sk_rx_ring_tag) {
2243 if (sc_if->sk_cdata.sk_rx_ring_map)
2244 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_ring_tag,
2245 sc_if->sk_cdata.sk_rx_ring_map);
2246 if (sc_if->sk_cdata.sk_rx_ring_map &&
2247 sc_if->sk_rdata.sk_rx_ring)
2248 bus_dmamem_free(sc_if->sk_cdata.sk_rx_ring_tag,
2249 sc_if->sk_rdata.sk_rx_ring,
2250 sc_if->sk_cdata.sk_rx_ring_map);
2251 sc_if->sk_rdata.sk_rx_ring = NULL;
2252 sc_if->sk_cdata.sk_rx_ring_map = NULL;
2253 bus_dma_tag_destroy(sc_if->sk_cdata.sk_rx_ring_tag);
2254 sc_if->sk_cdata.sk_rx_ring_tag = NULL;
2257 if (sc_if->sk_cdata.sk_tx_tag) {
2258 for (i = 0; i < SK_TX_RING_CNT; i++) {
2259 txd = &sc_if->sk_cdata.sk_txdesc[i];
2260 if (txd->tx_dmamap) {
2261 bus_dmamap_destroy(sc_if->sk_cdata.sk_tx_tag,
2263 txd->tx_dmamap = NULL;
2266 bus_dma_tag_destroy(sc_if->sk_cdata.sk_tx_tag);
2267 sc_if->sk_cdata.sk_tx_tag = NULL;
2270 if (sc_if->sk_cdata.sk_rx_tag) {
2271 for (i = 0; i < SK_RX_RING_CNT; i++) {
2272 rxd = &sc_if->sk_cdata.sk_rxdesc[i];
2273 if (rxd->rx_dmamap) {
2274 bus_dmamap_destroy(sc_if->sk_cdata.sk_rx_tag,
2276 rxd->rx_dmamap = NULL;
2279 if (sc_if->sk_cdata.sk_rx_sparemap) {
2280 bus_dmamap_destroy(sc_if->sk_cdata.sk_rx_tag,
2281 sc_if->sk_cdata.sk_rx_sparemap);
2282 sc_if->sk_cdata.sk_rx_sparemap = NULL;
2284 bus_dma_tag_destroy(sc_if->sk_cdata.sk_rx_tag);
2285 sc_if->sk_cdata.sk_rx_tag = NULL;
2288 if (sc_if->sk_cdata.sk_parent_tag) {
2289 bus_dma_tag_destroy(sc_if->sk_cdata.sk_parent_tag);
2290 sc_if->sk_cdata.sk_parent_tag = NULL;
2295 sk_dma_jumbo_free(sc_if)
2296 struct sk_if_softc *sc_if;
2298 struct sk_rxdesc *jrxd;
2302 if (sc_if->sk_cdata.sk_jumbo_rx_ring_tag) {
2303 if (sc_if->sk_cdata.sk_jumbo_rx_ring_map)
2304 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_ring_tag,
2305 sc_if->sk_cdata.sk_jumbo_rx_ring_map);
2306 if (sc_if->sk_cdata.sk_jumbo_rx_ring_map &&
2307 sc_if->sk_rdata.sk_jumbo_rx_ring)
2308 bus_dmamem_free(sc_if->sk_cdata.sk_jumbo_rx_ring_tag,
2309 sc_if->sk_rdata.sk_jumbo_rx_ring,
2310 sc_if->sk_cdata.sk_jumbo_rx_ring_map);
2311 sc_if->sk_rdata.sk_jumbo_rx_ring = NULL;
2312 sc_if->sk_cdata.sk_jumbo_rx_ring_map = NULL;
2313 bus_dma_tag_destroy(sc_if->sk_cdata.sk_jumbo_rx_ring_tag);
2314 sc_if->sk_cdata.sk_jumbo_rx_ring_tag = NULL;
2317 /* jumbo Rx buffers */
2318 if (sc_if->sk_cdata.sk_jumbo_rx_tag) {
2319 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) {
2320 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[i];
2321 if (jrxd->rx_dmamap) {
2323 sc_if->sk_cdata.sk_jumbo_rx_tag,
2325 jrxd->rx_dmamap = NULL;
2328 if (sc_if->sk_cdata.sk_jumbo_rx_sparemap) {
2329 bus_dmamap_destroy(sc_if->sk_cdata.sk_jumbo_rx_tag,
2330 sc_if->sk_cdata.sk_jumbo_rx_sparemap);
2331 sc_if->sk_cdata.sk_jumbo_rx_sparemap = NULL;
2333 bus_dma_tag_destroy(sc_if->sk_cdata.sk_jumbo_rx_tag);
2334 sc_if->sk_cdata.sk_jumbo_rx_tag = NULL;
2339 sk_txcksum(ifp, m, f)
2342 struct sk_tx_desc *f;
2348 offset = sizeof(struct ip) + ETHER_HDR_LEN;
2349 for(; m && m->m_len == 0; m = m->m_next)
2351 if (m == NULL || m->m_len < ETHER_HDR_LEN) {
2352 if_printf(ifp, "%s: m_len < ETHER_HDR_LEN\n", __func__);
2353 /* checksum may be corrupted */
2356 if (m->m_len < ETHER_HDR_LEN + sizeof(u_int32_t)) {
2357 if (m->m_len != ETHER_HDR_LEN) {
2358 if_printf(ifp, "%s: m_len != ETHER_HDR_LEN\n",
2360 /* checksum may be corrupted */
2363 for(m = m->m_next; m && m->m_len == 0; m = m->m_next)
2366 offset = sizeof(struct ip) + ETHER_HDR_LEN;
2367 /* checksum may be corrupted */
2370 ip = mtod(m, struct ip *);
2372 p = mtod(m, u_int8_t *);
2374 ip = (struct ip *)p;
2376 offset = (ip->ip_hl << 2) + ETHER_HDR_LEN;
2379 f->sk_csum_startval = 0;
2380 f->sk_csum_start = htole32(((offset + m->m_pkthdr.csum_data) & 0xffff) |
2385 sk_encap(sc_if, m_head)
2386 struct sk_if_softc *sc_if;
2387 struct mbuf **m_head;
2389 struct sk_txdesc *txd;
2390 struct sk_tx_desc *f = NULL;
2392 bus_dma_segment_t txsegs[SK_MAXTXSEGS];
2393 u_int32_t cflags, frag, si, sk_ctl;
2396 SK_IF_LOCK_ASSERT(sc_if);
2398 if ((txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txfreeq)) == NULL)
2401 error = bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_tx_tag,
2402 txd->tx_dmamap, *m_head, txsegs, &nseg, 0);
2403 if (error == EFBIG) {
2404 m = m_defrag(*m_head, M_DONTWAIT);
2411 error = bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_tx_tag,
2412 txd->tx_dmamap, *m_head, txsegs, &nseg, 0);
2418 } else if (error != 0)
2425 if (sc_if->sk_cdata.sk_tx_cnt + nseg >= SK_TX_RING_CNT) {
2426 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap);
2431 if ((m->m_pkthdr.csum_flags & sc_if->sk_ifp->if_hwassist) != 0)
2432 cflags = SK_OPCODE_CSUM;
2434 cflags = SK_OPCODE_DEFAULT;
2435 si = frag = sc_if->sk_cdata.sk_tx_prod;
2436 for (i = 0; i < nseg; i++) {
2437 f = &sc_if->sk_rdata.sk_tx_ring[frag];
2438 f->sk_data_lo = htole32(SK_ADDR_LO(txsegs[i].ds_addr));
2439 f->sk_data_hi = htole32(SK_ADDR_HI(txsegs[i].ds_addr));
2440 sk_ctl = txsegs[i].ds_len | cflags;
2442 if (cflags == SK_OPCODE_CSUM)
2443 sk_txcksum(sc_if->sk_ifp, m, f);
2444 sk_ctl |= SK_TXCTL_FIRSTFRAG;
2446 sk_ctl |= SK_TXCTL_OWN;
2447 f->sk_ctl = htole32(sk_ctl);
2448 sc_if->sk_cdata.sk_tx_cnt++;
2449 SK_INC(frag, SK_TX_RING_CNT);
2451 sc_if->sk_cdata.sk_tx_prod = frag;
2453 /* set EOF on the last desciptor */
2454 frag = (frag + SK_TX_RING_CNT - 1) % SK_TX_RING_CNT;
2455 f = &sc_if->sk_rdata.sk_tx_ring[frag];
2456 f->sk_ctl |= htole32(SK_TXCTL_LASTFRAG | SK_TXCTL_EOF_INTR);
2458 /* turn the first descriptor ownership to NIC */
2459 f = &sc_if->sk_rdata.sk_tx_ring[si];
2460 f->sk_ctl |= htole32(SK_TXCTL_OWN);
2462 STAILQ_REMOVE_HEAD(&sc_if->sk_cdata.sk_txfreeq, tx_q);
2463 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txbusyq, txd, tx_q);
2466 /* sync descriptors */
2467 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap,
2468 BUS_DMASYNC_PREWRITE);
2469 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag,
2470 sc_if->sk_cdata.sk_tx_ring_map,
2471 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
2480 struct sk_if_softc *sc_if;
2482 sc_if = ifp->if_softc;
2485 sk_start_locked(ifp);
2486 SK_IF_UNLOCK(sc_if);
2492 sk_start_locked(ifp)
2495 struct sk_softc *sc;
2496 struct sk_if_softc *sc_if;
2497 struct mbuf *m_head;
2500 sc_if = ifp->if_softc;
2501 sc = sc_if->sk_softc;
2503 SK_IF_LOCK_ASSERT(sc_if);
2505 for (enq = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd) &&
2506 sc_if->sk_cdata.sk_tx_cnt < SK_TX_RING_CNT - 1; ) {
2507 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
2512 * Pack the data into the transmit ring. If we
2513 * don't have room, set the OACTIVE flag and wait
2514 * for the NIC to drain the ring.
2516 if (sk_encap(sc_if, &m_head)) {
2519 IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
2520 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2526 * If there's a BPF listener, bounce a copy of this frame
2529 BPF_MTAP(ifp, m_head);
2534 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_START);
2536 /* Set a timeout in case the chip goes out to lunch. */
2537 sc_if->sk_watchdog_timer = 5;
2546 struct sk_if_softc *sc_if;
2550 sc_if = ifp->if_softc;
2552 SK_IF_LOCK_ASSERT(sc_if);
2554 if (sc_if->sk_watchdog_timer == 0 || --sc_if->sk_watchdog_timer)
2558 * Reclaim first as there is a possibility of losing Tx completion
2562 if (sc_if->sk_cdata.sk_tx_cnt != 0) {
2563 if_printf(sc_if->sk_ifp, "watchdog timeout\n");
2565 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2566 sk_init_locked(sc_if);
2570 callout_reset(&sc_if->sk_watchdog_ch, hz, sk_watchdog, ifp);
2579 struct sk_softc *sc;
2581 sc = device_get_softc(dev);
2584 /* Turn off the 'driver is loaded' LED. */
2585 CSR_WRITE_2(sc, SK_LED, SK_LED_GREEN_OFF);
2588 * Reset the GEnesis controller. Doing this should also
2589 * assert the resets on the attached XMAC(s).
2601 struct sk_softc *sc;
2602 struct sk_if_softc *sc_if0, *sc_if1;
2603 struct ifnet *ifp0 = NULL, *ifp1 = NULL;
2605 sc = device_get_softc(dev);
2609 sc_if0 = sc->sk_if[SK_PORT_A];
2610 sc_if1 = sc->sk_if[SK_PORT_B];
2612 ifp0 = sc_if0->sk_ifp;
2614 ifp1 = sc_if1->sk_ifp;
2619 sc->sk_suspended = 1;
2630 struct sk_softc *sc;
2631 struct sk_if_softc *sc_if0, *sc_if1;
2632 struct ifnet *ifp0 = NULL, *ifp1 = NULL;
2634 sc = device_get_softc(dev);
2638 sc_if0 = sc->sk_if[SK_PORT_A];
2639 sc_if1 = sc->sk_if[SK_PORT_B];
2641 ifp0 = sc_if0->sk_ifp;
2643 ifp1 = sc_if1->sk_ifp;
2644 if (ifp0 != NULL && ifp0->if_flags & IFF_UP)
2645 sk_init_locked(sc_if0);
2646 if (ifp1 != NULL && ifp1->if_flags & IFF_UP)
2647 sk_init_locked(sc_if1);
2648 sc->sk_suspended = 0;
2656 * According to the data sheet from SK-NET GENESIS the hardware can compute
2657 * two Rx checksums at the same time(Each checksum start position is
2658 * programmed in Rx descriptors). However it seems that TCP/UDP checksum
2659 * does not work at least on my Yukon hardware. I tried every possible ways
2660 * to get correct checksum value but couldn't get correct one. So TCP/UDP
2661 * checksum offload was disabled at the moment and only IP checksum offload
2663 * As nomral IP header size is 20 bytes I can't expect it would give an
2664 * increase in throughput. However it seems it doesn't hurt performance in
2665 * my testing. If there is a more detailed information for checksum secret
2666 * of the hardware in question please contact yongari@FreeBSD.org to add
2667 * TCP/UDP checksum offload support.
2669 static __inline void
2670 sk_rxcksum(ifp, m, csum)
2675 struct ether_header *eh;
2677 int32_t hlen, len, pktlen;
2678 u_int16_t csum1, csum2, ipcsum;
2680 pktlen = m->m_pkthdr.len;
2681 if (pktlen < sizeof(struct ether_header) + sizeof(struct ip))
2683 eh = mtod(m, struct ether_header *);
2684 if (eh->ether_type != htons(ETHERTYPE_IP))
2686 ip = (struct ip *)(eh + 1);
2687 if (ip->ip_v != IPVERSION)
2689 hlen = ip->ip_hl << 2;
2690 pktlen -= sizeof(struct ether_header);
2691 if (hlen < sizeof(struct ip))
2693 if (ntohs(ip->ip_len) < hlen)
2695 if (ntohs(ip->ip_len) != pktlen)
2698 csum1 = htons(csum & 0xffff);
2699 csum2 = htons((csum >> 16) & 0xffff);
2700 ipcsum = in_addword(csum1, ~csum2 & 0xffff);
2701 /* checksum fixup for IP options */
2702 len = hlen - sizeof(struct ip);
2705 * If the second checksum value is correct we can compute IP
2706 * checksum with simple math. Unfortunately the second checksum
2707 * value is wrong so we can't verify the checksum from the
2708 * value(It seems there is some magic here to get correct
2709 * value). If the second checksum value is correct it also
2710 * means we can get TCP/UDP checksum) here. However, it still
2711 * needs pseudo header checksum calculation due to hardware
2716 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED;
2717 if (ipcsum == 0xffff)
2718 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2722 sk_rxvalid(sc, stat, len)
2723 struct sk_softc *sc;
2724 u_int32_t stat, len;
2727 if (sc->sk_type == SK_GENESIS) {
2728 if ((stat & XM_RXSTAT_ERRFRAME) == XM_RXSTAT_ERRFRAME ||
2729 XM_RXSTAT_BYTES(stat) != len)
2732 if ((stat & (YU_RXSTAT_CRCERR | YU_RXSTAT_LONGERR |
2733 YU_RXSTAT_MIIERR | YU_RXSTAT_BADFC | YU_RXSTAT_GOODFC |
2734 YU_RXSTAT_JABBER)) != 0 ||
2735 (stat & YU_RXSTAT_RXOK) != YU_RXSTAT_RXOK ||
2736 YU_RXSTAT_BYTES(stat) != len)
2745 struct sk_if_softc *sc_if;
2747 struct sk_softc *sc;
2750 struct sk_rx_desc *cur_rx;
2751 struct sk_rxdesc *rxd;
2753 u_int32_t csum, rxstat, sk_ctl;
2755 sc = sc_if->sk_softc;
2756 ifp = sc_if->sk_ifp;
2758 SK_IF_LOCK_ASSERT(sc_if);
2760 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag,
2761 sc_if->sk_cdata.sk_rx_ring_map, BUS_DMASYNC_POSTREAD);
2764 for (cons = sc_if->sk_cdata.sk_rx_cons; prog < SK_RX_RING_CNT;
2765 prog++, SK_INC(cons, SK_RX_RING_CNT)) {
2766 cur_rx = &sc_if->sk_rdata.sk_rx_ring[cons];
2767 sk_ctl = le32toh(cur_rx->sk_ctl);
2768 if ((sk_ctl & SK_RXCTL_OWN) != 0)
2770 rxd = &sc_if->sk_cdata.sk_rxdesc[cons];
2771 rxstat = le32toh(cur_rx->sk_xmac_rxstat);
2773 if ((sk_ctl & (SK_RXCTL_STATUS_VALID | SK_RXCTL_FIRSTFRAG |
2774 SK_RXCTL_LASTFRAG)) != (SK_RXCTL_STATUS_VALID |
2775 SK_RXCTL_FIRSTFRAG | SK_RXCTL_LASTFRAG) ||
2776 SK_RXBYTES(sk_ctl) < SK_MIN_FRAMELEN ||
2777 SK_RXBYTES(sk_ctl) > SK_MAX_FRAMELEN ||
2778 sk_rxvalid(sc, rxstat, SK_RXBYTES(sk_ctl)) == 0) {
2780 sk_discard_rxbuf(sc_if, cons);
2785 csum = le32toh(cur_rx->sk_csum);
2786 if (sk_newbuf(sc_if, cons) != 0) {
2788 /* reuse old buffer */
2789 sk_discard_rxbuf(sc_if, cons);
2792 m->m_pkthdr.rcvif = ifp;
2793 m->m_pkthdr.len = m->m_len = SK_RXBYTES(sk_ctl);
2795 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0)
2796 sk_rxcksum(ifp, m, csum);
2797 SK_IF_UNLOCK(sc_if);
2798 (*ifp->if_input)(ifp, m);
2803 sc_if->sk_cdata.sk_rx_cons = cons;
2804 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag,
2805 sc_if->sk_cdata.sk_rx_ring_map,
2806 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
2811 sk_jumbo_rxeof(sc_if)
2812 struct sk_if_softc *sc_if;
2814 struct sk_softc *sc;
2817 struct sk_rx_desc *cur_rx;
2818 struct sk_rxdesc *jrxd;
2820 u_int32_t csum, rxstat, sk_ctl;
2822 sc = sc_if->sk_softc;
2823 ifp = sc_if->sk_ifp;
2825 SK_IF_LOCK_ASSERT(sc_if);
2827 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag,
2828 sc_if->sk_cdata.sk_jumbo_rx_ring_map, BUS_DMASYNC_POSTREAD);
2831 for (cons = sc_if->sk_cdata.sk_jumbo_rx_cons;
2832 prog < SK_JUMBO_RX_RING_CNT;
2833 prog++, SK_INC(cons, SK_JUMBO_RX_RING_CNT)) {
2834 cur_rx = &sc_if->sk_rdata.sk_jumbo_rx_ring[cons];
2835 sk_ctl = le32toh(cur_rx->sk_ctl);
2836 if ((sk_ctl & SK_RXCTL_OWN) != 0)
2838 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[cons];
2839 rxstat = le32toh(cur_rx->sk_xmac_rxstat);
2841 if ((sk_ctl & (SK_RXCTL_STATUS_VALID | SK_RXCTL_FIRSTFRAG |
2842 SK_RXCTL_LASTFRAG)) != (SK_RXCTL_STATUS_VALID |
2843 SK_RXCTL_FIRSTFRAG | SK_RXCTL_LASTFRAG) ||
2844 SK_RXBYTES(sk_ctl) < SK_MIN_FRAMELEN ||
2845 SK_RXBYTES(sk_ctl) > SK_JUMBO_FRAMELEN ||
2846 sk_rxvalid(sc, rxstat, SK_RXBYTES(sk_ctl)) == 0) {
2848 sk_discard_jumbo_rxbuf(sc_if, cons);
2853 csum = le32toh(cur_rx->sk_csum);
2854 if (sk_jumbo_newbuf(sc_if, cons) != 0) {
2856 /* reuse old buffer */
2857 sk_discard_jumbo_rxbuf(sc_if, cons);
2860 m->m_pkthdr.rcvif = ifp;
2861 m->m_pkthdr.len = m->m_len = SK_RXBYTES(sk_ctl);
2863 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0)
2864 sk_rxcksum(ifp, m, csum);
2865 SK_IF_UNLOCK(sc_if);
2866 (*ifp->if_input)(ifp, m);
2871 sc_if->sk_cdata.sk_jumbo_rx_cons = cons;
2872 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag,
2873 sc_if->sk_cdata.sk_jumbo_rx_ring_map,
2874 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
2880 struct sk_if_softc *sc_if;
2882 struct sk_softc *sc;
2883 struct sk_txdesc *txd;
2884 struct sk_tx_desc *cur_tx;
2886 u_int32_t idx, sk_ctl;
2888 sc = sc_if->sk_softc;
2889 ifp = sc_if->sk_ifp;
2891 txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txbusyq);
2894 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag,
2895 sc_if->sk_cdata.sk_tx_ring_map, BUS_DMASYNC_POSTREAD);
2897 * Go through our tx ring and free mbufs for those
2898 * frames that have been sent.
2900 for (idx = sc_if->sk_cdata.sk_tx_cons;; SK_INC(idx, SK_TX_RING_CNT)) {
2901 if (sc_if->sk_cdata.sk_tx_cnt <= 0)
2903 cur_tx = &sc_if->sk_rdata.sk_tx_ring[idx];
2904 sk_ctl = le32toh(cur_tx->sk_ctl);
2905 if (sk_ctl & SK_TXCTL_OWN)
2907 sc_if->sk_cdata.sk_tx_cnt--;
2908 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2909 if ((sk_ctl & SK_TXCTL_LASTFRAG) == 0)
2911 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap,
2912 BUS_DMASYNC_POSTWRITE);
2913 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap);
2918 STAILQ_REMOVE_HEAD(&sc_if->sk_cdata.sk_txbusyq, tx_q);
2919 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txfreeq, txd, tx_q);
2920 txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txbusyq);
2922 sc_if->sk_cdata.sk_tx_cons = idx;
2923 sc_if->sk_watchdog_timer = sc_if->sk_cdata.sk_tx_cnt > 0 ? 5 : 0;
2925 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag,
2926 sc_if->sk_cdata.sk_tx_ring_map,
2927 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
2934 struct sk_if_softc *sc_if;
2935 struct mii_data *mii;
2940 ifp = sc_if->sk_ifp;
2941 mii = device_get_softc(sc_if->sk_miibus);
2943 if (!(ifp->if_flags & IFF_UP))
2946 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) {
2947 sk_intr_bcom(sc_if);
2952 * According to SysKonnect, the correct way to verify that
2953 * the link has come back up is to poll bit 0 of the GPIO
2954 * register three times. This pin has the signal from the
2955 * link_sync pin connected to it; if we read the same link
2956 * state 3 times in a row, we know the link is up.
2958 for (i = 0; i < 3; i++) {
2959 if (SK_XM_READ_2(sc_if, XM_GPIO) & XM_GPIO_GP0_SET)
2964 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if);
2968 /* Turn the GP0 interrupt back on. */
2969 SK_XM_CLRBIT_2(sc_if, XM_IMR, XM_IMR_GP0_SET);
2970 SK_XM_READ_2(sc_if, XM_ISR);
2972 callout_stop(&sc_if->sk_tick_ch);
2976 sk_yukon_tick(xsc_if)
2979 struct sk_if_softc *sc_if;
2980 struct mii_data *mii;
2983 mii = device_get_softc(sc_if->sk_miibus);
2986 callout_reset(&sc_if->sk_tick_ch, hz, sk_yukon_tick, sc_if);
2991 struct sk_if_softc *sc_if;
2993 struct mii_data *mii;
2996 mii = device_get_softc(sc_if->sk_miibus);
2997 ifp = sc_if->sk_ifp;
2999 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB);
3002 * Read the PHY interrupt register to make sure
3003 * we clear any pending interrupts.
3005 status = sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM, BRGPHY_MII_ISR);
3007 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
3008 sk_init_xmac(sc_if);
3012 if (status & (BRGPHY_ISR_LNK_CHG|BRGPHY_ISR_AN_PR)) {
3014 lstat = sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM,
3017 if (!(lstat & BRGPHY_AUXSTS_LINK) && sc_if->sk_link) {
3019 /* Turn off the link LED. */
3020 SK_IF_WRITE_1(sc_if, 0,
3021 SK_LINKLED1_CTL, SK_LINKLED_OFF);
3023 } else if (status & BRGPHY_ISR_LNK_CHG) {
3024 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM,
3025 BRGPHY_MII_IMR, 0xFF00);
3028 /* Turn on the link LED. */
3029 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL,
3030 SK_LINKLED_ON|SK_LINKLED_LINKSYNC_OFF|
3031 SK_LINKLED_BLINK_OFF);
3034 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if);
3038 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB);
3045 struct sk_if_softc *sc_if;
3047 struct sk_softc *sc;
3050 sc = sc_if->sk_softc;
3051 status = SK_XM_READ_2(sc_if, XM_ISR);
3054 * Link has gone down. Start MII tick timeout to
3055 * watch for link resync.
3057 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC) {
3058 if (status & XM_ISR_GP0_SET) {
3059 SK_XM_SETBIT_2(sc_if, XM_IMR, XM_IMR_GP0_SET);
3060 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if);
3063 if (status & XM_ISR_AUTONEG_DONE) {
3064 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if);
3068 if (status & XM_IMR_TX_UNDERRUN)
3069 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_FLUSH_TXFIFO);
3071 if (status & XM_IMR_RX_OVERRUN)
3072 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_FLUSH_RXFIFO);
3074 status = SK_XM_READ_2(sc_if, XM_ISR);
3080 sk_intr_yukon(sc_if)
3081 struct sk_if_softc *sc_if;
3085 status = SK_IF_READ_1(sc_if, 0, SK_GMAC_ISR);
3087 if ((status & SK_GMAC_INT_RX_OVER) != 0) {
3088 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST,
3089 SK_RFCTL_RX_FIFO_OVER);
3092 if ((status & SK_GMAC_INT_TX_UNDER) != 0) {
3093 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST,
3094 SK_TFCTL_TX_FIFO_UNDER);
3102 struct sk_softc *sc = xsc;
3103 struct sk_if_softc *sc_if0, *sc_if1;
3104 struct ifnet *ifp0 = NULL, *ifp1 = NULL;
3109 status = CSR_READ_4(sc, SK_ISSR);
3110 if (status == 0 || status == 0xffffffff || sc->sk_suspended)
3113 sc_if0 = sc->sk_if[SK_PORT_A];
3114 sc_if1 = sc->sk_if[SK_PORT_B];
3117 ifp0 = sc_if0->sk_ifp;
3119 ifp1 = sc_if1->sk_ifp;
3121 for (; (status &= sc->sk_intrmask) != 0;) {
3122 /* Handle receive interrupts first. */
3123 if (status & SK_ISR_RX1_EOF) {
3124 if (ifp0->if_mtu > SK_MAX_FRAMELEN)
3125 sk_jumbo_rxeof(sc_if0);
3128 CSR_WRITE_4(sc, SK_BMU_RX_CSR0,
3129 SK_RXBMU_CLR_IRQ_EOF|SK_RXBMU_RX_START);
3131 if (status & SK_ISR_RX2_EOF) {
3132 if (ifp1->if_mtu > SK_MAX_FRAMELEN)
3133 sk_jumbo_rxeof(sc_if1);
3136 CSR_WRITE_4(sc, SK_BMU_RX_CSR1,
3137 SK_RXBMU_CLR_IRQ_EOF|SK_RXBMU_RX_START);
3140 /* Then transmit interrupts. */
3141 if (status & SK_ISR_TX1_S_EOF) {
3143 CSR_WRITE_4(sc, SK_BMU_TXS_CSR0, SK_TXBMU_CLR_IRQ_EOF);
3145 if (status & SK_ISR_TX2_S_EOF) {
3147 CSR_WRITE_4(sc, SK_BMU_TXS_CSR1, SK_TXBMU_CLR_IRQ_EOF);
3150 /* Then MAC interrupts. */
3151 if (status & SK_ISR_MAC1 &&
3152 ifp0->if_drv_flags & IFF_DRV_RUNNING) {
3153 if (sc->sk_type == SK_GENESIS)
3154 sk_intr_xmac(sc_if0);
3156 sk_intr_yukon(sc_if0);
3159 if (status & SK_ISR_MAC2 &&
3160 ifp1->if_drv_flags & IFF_DRV_RUNNING) {
3161 if (sc->sk_type == SK_GENESIS)
3162 sk_intr_xmac(sc_if1);
3164 sk_intr_yukon(sc_if1);
3167 if (status & SK_ISR_EXTERNAL_REG) {
3169 sc_if0->sk_phytype == SK_PHYTYPE_BCOM)
3170 sk_intr_bcom(sc_if0);
3172 sc_if1->sk_phytype == SK_PHYTYPE_BCOM)
3173 sk_intr_bcom(sc_if1);
3175 status = CSR_READ_4(sc, SK_ISSR);
3178 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask);
3180 if (ifp0 != NULL && !IFQ_DRV_IS_EMPTY(&ifp0->if_snd))
3181 sk_start_locked(ifp0);
3182 if (ifp1 != NULL && !IFQ_DRV_IS_EMPTY(&ifp1->if_snd))
3183 sk_start_locked(ifp1);
3191 struct sk_if_softc *sc_if;
3193 struct sk_softc *sc;
3195 u_int16_t eaddr[(ETHER_ADDR_LEN+1)/2];
3196 struct sk_bcom_hack bhack[] = {
3197 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, { 0x17, 0x0013 },
3198 { 0x15, 0x0404 }, { 0x17, 0x8006 }, { 0x15, 0x0132 }, { 0x17, 0x8006 },
3199 { 0x15, 0x0232 }, { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
3202 SK_IF_LOCK_ASSERT(sc_if);
3204 sc = sc_if->sk_softc;
3205 ifp = sc_if->sk_ifp;
3207 /* Unreset the XMAC. */
3208 SK_IF_WRITE_2(sc_if, 0, SK_TXF1_MACCTL, SK_TXMACCTL_XMAC_UNRESET);
3211 /* Reset the XMAC's internal state. */
3212 SK_XM_SETBIT_2(sc_if, XM_GPIO, XM_GPIO_RESETMAC);
3214 /* Save the XMAC II revision */
3215 sc_if->sk_xmac_rev = XM_XMAC_REV(SK_XM_READ_4(sc_if, XM_DEVID));
3218 * Perform additional initialization for external PHYs,
3219 * namely for the 1000baseTX cards that use the XMAC's
3222 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) {
3226 /* Take PHY out of reset. */
3227 val = sk_win_read_4(sc, SK_GPIO);
3228 if (sc_if->sk_port == SK_PORT_A)
3229 val |= SK_GPIO_DIR0|SK_GPIO_DAT0;
3231 val |= SK_GPIO_DIR2|SK_GPIO_DAT2;
3232 sk_win_write_4(sc, SK_GPIO, val);
3234 /* Enable GMII mode on the XMAC. */
3235 SK_XM_SETBIT_2(sc_if, XM_HWCFG, XM_HWCFG_GMIIMODE);
3237 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM,
3238 BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET);
3240 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM,
3241 BRGPHY_MII_IMR, 0xFFF0);
3244 * Early versions of the BCM5400 apparently have
3245 * a bug that requires them to have their reserved
3246 * registers initialized to some magic values. I don't
3247 * know what the numbers do, I'm just the messenger.
3249 if (sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM, 0x03)
3251 while(bhack[i].reg) {
3252 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM,
3253 bhack[i].reg, bhack[i].val);
3259 /* Set station address */
3260 bcopy(IF_LLADDR(sc_if->sk_ifp), eaddr, ETHER_ADDR_LEN);
3261 SK_XM_WRITE_2(sc_if, XM_PAR0, eaddr[0]);
3262 SK_XM_WRITE_2(sc_if, XM_PAR1, eaddr[1]);
3263 SK_XM_WRITE_2(sc_if, XM_PAR2, eaddr[2]);
3264 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_USE_STATION);
3266 if (ifp->if_flags & IFF_BROADCAST) {
3267 SK_XM_CLRBIT_4(sc_if, XM_MODE, XM_MODE_RX_NOBROAD);
3269 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_NOBROAD);
3272 /* We don't need the FCS appended to the packet. */
3273 SK_XM_SETBIT_2(sc_if, XM_RXCMD, XM_RXCMD_STRIPFCS);
3275 /* We want short frames padded to 60 bytes. */
3276 SK_XM_SETBIT_2(sc_if, XM_TXCMD, XM_TXCMD_AUTOPAD);
3279 * Enable the reception of all error frames. This is is
3280 * a necessary evil due to the design of the XMAC. The
3281 * XMAC's receive FIFO is only 8K in size, however jumbo
3282 * frames can be up to 9000 bytes in length. When bad
3283 * frame filtering is enabled, the XMAC's RX FIFO operates
3284 * in 'store and forward' mode. For this to work, the
3285 * entire frame has to fit into the FIFO, but that means
3286 * that jumbo frames larger than 8192 bytes will be
3287 * truncated. Disabling all bad frame filtering causes
3288 * the RX FIFO to operate in streaming mode, in which
3289 * case the XMAC will start transfering frames out of the
3290 * RX FIFO as soon as the FIFO threshold is reached.
3292 if (ifp->if_mtu > SK_MAX_FRAMELEN) {
3293 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_BADFRAMES|
3294 XM_MODE_RX_GIANTS|XM_MODE_RX_RUNTS|XM_MODE_RX_CRCERRS|
3295 XM_MODE_RX_INRANGELEN);
3296 SK_XM_SETBIT_2(sc_if, XM_RXCMD, XM_RXCMD_BIGPKTOK);
3298 SK_XM_CLRBIT_2(sc_if, XM_RXCMD, XM_RXCMD_BIGPKTOK);
3301 * Bump up the transmit threshold. This helps hold off transmit
3302 * underruns when we're blasting traffic from both ports at once.
3304 SK_XM_WRITE_2(sc_if, XM_TX_REQTHRESH, SK_XM_TX_FIFOTHRESH);
3307 sk_rxfilter_genesis(sc_if);
3309 /* Clear and enable interrupts */
3310 SK_XM_READ_2(sc_if, XM_ISR);
3311 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC)
3312 SK_XM_WRITE_2(sc_if, XM_IMR, XM_INTRS);
3314 SK_XM_WRITE_2(sc_if, XM_IMR, 0xFFFF);
3316 /* Configure MAC arbiter */
3317 switch(sc_if->sk_xmac_rev) {
3318 case XM_XMAC_REV_B2:
3319 sk_win_write_1(sc, SK_RCINIT_RX1, SK_RCINIT_XMAC_B2);
3320 sk_win_write_1(sc, SK_RCINIT_TX1, SK_RCINIT_XMAC_B2);
3321 sk_win_write_1(sc, SK_RCINIT_RX2, SK_RCINIT_XMAC_B2);
3322 sk_win_write_1(sc, SK_RCINIT_TX2, SK_RCINIT_XMAC_B2);
3323 sk_win_write_1(sc, SK_MINIT_RX1, SK_MINIT_XMAC_B2);
3324 sk_win_write_1(sc, SK_MINIT_TX1, SK_MINIT_XMAC_B2);
3325 sk_win_write_1(sc, SK_MINIT_RX2, SK_MINIT_XMAC_B2);
3326 sk_win_write_1(sc, SK_MINIT_TX2, SK_MINIT_XMAC_B2);
3327 sk_win_write_1(sc, SK_RECOVERY_CTL, SK_RECOVERY_XMAC_B2);
3329 case XM_XMAC_REV_C1:
3330 sk_win_write_1(sc, SK_RCINIT_RX1, SK_RCINIT_XMAC_C1);
3331 sk_win_write_1(sc, SK_RCINIT_TX1, SK_RCINIT_XMAC_C1);
3332 sk_win_write_1(sc, SK_RCINIT_RX2, SK_RCINIT_XMAC_C1);
3333 sk_win_write_1(sc, SK_RCINIT_TX2, SK_RCINIT_XMAC_C1);
3334 sk_win_write_1(sc, SK_MINIT_RX1, SK_MINIT_XMAC_C1);
3335 sk_win_write_1(sc, SK_MINIT_TX1, SK_MINIT_XMAC_C1);
3336 sk_win_write_1(sc, SK_MINIT_RX2, SK_MINIT_XMAC_C1);
3337 sk_win_write_1(sc, SK_MINIT_TX2, SK_MINIT_XMAC_C1);
3338 sk_win_write_1(sc, SK_RECOVERY_CTL, SK_RECOVERY_XMAC_B2);
3343 sk_win_write_2(sc, SK_MACARB_CTL,
3344 SK_MACARBCTL_UNRESET|SK_MACARBCTL_FASTOE_OFF);
3352 sk_init_yukon(sc_if)
3353 struct sk_if_softc *sc_if;
3357 struct sk_softc *sc;
3362 SK_IF_LOCK_ASSERT(sc_if);
3364 sc = sc_if->sk_softc;
3365 ifp = sc_if->sk_ifp;
3367 if (sc->sk_type == SK_YUKON_LITE &&
3368 sc->sk_rev >= SK_YUKON_LITE_REV_A3) {
3370 * Workaround code for COMA mode, set PHY reset.
3371 * Otherwise it will not correctly take chip out of
3374 v = sk_win_read_4(sc, SK_GPIO);
3375 v |= SK_GPIO_DIR9 | SK_GPIO_DAT9;
3376 sk_win_write_4(sc, SK_GPIO, v);
3379 /* GMAC and GPHY Reset */
3380 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, SK_GPHY_RESET_SET);
3381 SK_IF_WRITE_4(sc_if, 0, SK_GMAC_CTRL, SK_GMAC_RESET_SET);
3384 if (sc->sk_type == SK_YUKON_LITE &&
3385 sc->sk_rev >= SK_YUKON_LITE_REV_A3) {
3387 * Workaround code for COMA mode, clear PHY reset
3389 v = sk_win_read_4(sc, SK_GPIO);
3392 sk_win_write_4(sc, SK_GPIO, v);
3395 phy = SK_GPHY_INT_POL_HI | SK_GPHY_DIS_FC | SK_GPHY_DIS_SLEEP |
3396 SK_GPHY_ENA_XC | SK_GPHY_ANEG_ALL | SK_GPHY_ENA_PAUSE;
3398 if (sc->sk_coppertype)
3399 phy |= SK_GPHY_COPPER;
3401 phy |= SK_GPHY_FIBER;
3403 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, phy | SK_GPHY_RESET_SET);
3405 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, phy | SK_GPHY_RESET_CLEAR);
3406 SK_IF_WRITE_4(sc_if, 0, SK_GMAC_CTRL, SK_GMAC_LOOP_OFF |
3407 SK_GMAC_PAUSE_ON | SK_GMAC_RESET_CLEAR);
3409 /* unused read of the interrupt source register */
3410 SK_IF_READ_2(sc_if, 0, SK_GMAC_ISR);
3412 reg = SK_YU_READ_2(sc_if, YUKON_PAR);
3414 /* MIB Counter Clear Mode set */
3415 reg |= YU_PAR_MIB_CLR;
3416 SK_YU_WRITE_2(sc_if, YUKON_PAR, reg);
3418 /* MIB Counter Clear Mode clear */
3419 reg &= ~YU_PAR_MIB_CLR;
3420 SK_YU_WRITE_2(sc_if, YUKON_PAR, reg);
3422 /* receive control reg */
3423 SK_YU_WRITE_2(sc_if, YUKON_RCR, YU_RCR_CRCR);
3425 /* transmit parameter register */
3426 SK_YU_WRITE_2(sc_if, YUKON_TPR, YU_TPR_JAM_LEN(0x3) |
3427 YU_TPR_JAM_IPG(0xb) | YU_TPR_JAM2DATA_IPG(0x1a) );
3429 /* serial mode register */
3430 reg = YU_SMR_DATA_BLIND(0x1c) | YU_SMR_MFL_VLAN | YU_SMR_IPG_DATA(0x1e);
3431 if (ifp->if_mtu > SK_MAX_FRAMELEN)
3432 reg |= YU_SMR_MFL_JUMBO;
3433 SK_YU_WRITE_2(sc_if, YUKON_SMR, reg);
3435 /* Setup Yukon's station address */
3436 eaddr = IF_LLADDR(sc_if->sk_ifp);
3437 for (i = 0; i < 3; i++)
3438 SK_YU_WRITE_2(sc_if, SK_MAC0_0 + i * 4,
3439 eaddr[i * 2] | eaddr[i * 2 + 1] << 8);
3440 /* Set GMAC source address of flow control. */
3441 for (i = 0; i < 3; i++)
3442 SK_YU_WRITE_2(sc_if, YUKON_SAL1 + i * 4,
3443 eaddr[i * 2] | eaddr[i * 2 + 1] << 8);
3444 /* Set GMAC virtual address. */
3445 for (i = 0; i < 3; i++)
3446 SK_YU_WRITE_2(sc_if, YUKON_SAL2 + i * 4,
3447 eaddr[i * 2] | eaddr[i * 2 + 1] << 8);
3450 sk_rxfilter_yukon(sc_if);
3452 /* enable interrupt mask for counter overflows */
3453 SK_YU_WRITE_2(sc_if, YUKON_TIMR, 0);
3454 SK_YU_WRITE_2(sc_if, YUKON_RIMR, 0);
3455 SK_YU_WRITE_2(sc_if, YUKON_TRIMR, 0);
3457 /* Configure RX MAC FIFO Flush Mask */
3458 v = YU_RXSTAT_FOFL | YU_RXSTAT_CRCERR | YU_RXSTAT_MIIERR |
3459 YU_RXSTAT_BADFC | YU_RXSTAT_GOODFC | YU_RXSTAT_RUNT |
3461 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_FLUSH_MASK, v);
3463 /* Disable RX MAC FIFO Flush for YUKON-Lite Rev. A0 only */
3464 if (sc->sk_type == SK_YUKON_LITE && sc->sk_rev == SK_YUKON_LITE_REV_A0)
3465 v = SK_TFCTL_OPERATION_ON;
3467 v = SK_TFCTL_OPERATION_ON | SK_RFCTL_FIFO_FLUSH_ON;
3468 /* Configure RX MAC FIFO */
3469 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST, SK_RFCTL_RESET_CLEAR);
3470 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_CTRL_TEST, v);
3472 /* Increase flush threshould to 64 bytes */
3473 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_FLUSH_THRESHOLD,
3474 SK_RFCTL_FIFO_THRESHOLD + 1);
3476 /* Configure TX MAC FIFO */
3477 SK_IF_WRITE_1(sc_if, 0, SK_TXMF1_CTRL_TEST, SK_TFCTL_RESET_CLEAR);
3478 SK_IF_WRITE_2(sc_if, 0, SK_TXMF1_CTRL_TEST, SK_TFCTL_OPERATION_ON);
3482 * Note that to properly initialize any part of the GEnesis chip,
3483 * you first have to take it out of reset mode.
3489 struct sk_if_softc *sc_if = xsc;
3492 sk_init_locked(sc_if);
3493 SK_IF_UNLOCK(sc_if);
3499 sk_init_locked(sc_if)
3500 struct sk_if_softc *sc_if;
3502 struct sk_softc *sc;
3504 struct mii_data *mii;
3509 SK_IF_LOCK_ASSERT(sc_if);
3511 ifp = sc_if->sk_ifp;
3512 sc = sc_if->sk_softc;
3513 mii = device_get_softc(sc_if->sk_miibus);
3515 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3518 /* Cancel pending I/O and free all RX/TX buffers. */
3521 if (sc->sk_type == SK_GENESIS) {
3522 /* Configure LINK_SYNC LED */
3523 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_ON);
3524 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL,
3525 SK_LINKLED_LINKSYNC_ON);
3527 /* Configure RX LED */
3528 SK_IF_WRITE_1(sc_if, 0, SK_RXLED1_CTL,
3529 SK_RXLEDCTL_COUNTER_START);
3531 /* Configure TX LED */
3532 SK_IF_WRITE_1(sc_if, 0, SK_TXLED1_CTL,
3533 SK_TXLEDCTL_COUNTER_START);
3537 * Configure descriptor poll timer
3539 * SK-NET GENESIS data sheet says that possibility of losing Start
3540 * transmit command due to CPU/cache related interim storage problems
3541 * under certain conditions. The document recommends a polling
3542 * mechanism to send a Start transmit command to initiate transfer
3543 * of ready descriptors regulary. To cope with this issue sk(4) now
3544 * enables descriptor poll timer to initiate descriptor processing
3545 * periodically as defined by SK_DPT_TIMER_MAX. However sk(4) still
3546 * issue SK_TXBMU_TX_START to Tx BMU to get fast execution of Tx
3547 * command instead of waiting for next descriptor polling time.
3548 * The same rule may apply to Rx side too but it seems that is not
3549 * needed at the moment.
3550 * Since sk(4) uses descriptor polling as a last resort there is no
3551 * need to set smaller polling time than maximum allowable one.
3553 SK_IF_WRITE_4(sc_if, 0, SK_DPT_INIT, SK_DPT_TIMER_MAX);
3555 /* Configure I2C registers */
3557 /* Configure XMAC(s) */
3558 switch (sc->sk_type) {
3560 sk_init_xmac(sc_if);
3565 sk_init_yukon(sc_if);
3570 if (sc->sk_type == SK_GENESIS) {
3571 /* Configure MAC FIFOs */
3572 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_UNRESET);
3573 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_END, SK_FIFO_END);
3574 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_ON);
3576 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_CTL, SK_FIFO_UNRESET);
3577 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_END, SK_FIFO_END);
3578 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_CTL, SK_FIFO_ON);
3581 /* Configure transmit arbiter(s) */
3582 SK_IF_WRITE_1(sc_if, 0, SK_TXAR1_COUNTERCTL,
3583 SK_TXARCTL_ON|SK_TXARCTL_FSYNC_ON);
3585 /* Configure RAMbuffers */
3586 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_UNRESET);
3587 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_START, sc_if->sk_rx_ramstart);
3588 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_WR_PTR, sc_if->sk_rx_ramstart);
3589 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_RD_PTR, sc_if->sk_rx_ramstart);
3590 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_END, sc_if->sk_rx_ramend);
3591 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_ON);
3593 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_UNRESET);
3594 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_STORENFWD_ON);
3595 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_START, sc_if->sk_tx_ramstart);
3596 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_WR_PTR, sc_if->sk_tx_ramstart);
3597 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_RD_PTR, sc_if->sk_tx_ramstart);
3598 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_END, sc_if->sk_tx_ramend);
3599 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_ON);
3601 /* Configure BMUs */
3602 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_ONLINE);
3603 if (ifp->if_mtu > SK_MAX_FRAMELEN) {
3604 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_LO,
3605 SK_ADDR_LO(SK_JUMBO_RX_RING_ADDR(sc_if, 0)));
3606 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_HI,
3607 SK_ADDR_HI(SK_JUMBO_RX_RING_ADDR(sc_if, 0)));
3609 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_LO,
3610 SK_ADDR_LO(SK_RX_RING_ADDR(sc_if, 0)));
3611 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_HI,
3612 SK_ADDR_HI(SK_RX_RING_ADDR(sc_if, 0)));
3615 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_BMU_CSR, SK_TXBMU_ONLINE);
3616 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_CURADDR_LO,
3617 SK_ADDR_LO(SK_TX_RING_ADDR(sc_if, 0)));
3618 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_CURADDR_HI,
3619 SK_ADDR_HI(SK_TX_RING_ADDR(sc_if, 0)));
3621 /* Init descriptors */
3622 if (ifp->if_mtu > SK_MAX_FRAMELEN)
3623 error = sk_init_jumbo_rx_ring(sc_if);
3625 error = sk_init_rx_ring(sc_if);
3627 device_printf(sc_if->sk_if_dev,
3628 "initialization failed: no memory for rx buffers\n");
3632 sk_init_tx_ring(sc_if);
3634 /* Set interrupt moderation if changed via sysctl. */
3635 imr = sk_win_read_4(sc, SK_IMTIMERINIT);
3636 if (imr != SK_IM_USECS(sc->sk_int_mod, sc->sk_int_ticks)) {
3637 sk_win_write_4(sc, SK_IMTIMERINIT, SK_IM_USECS(sc->sk_int_mod,
3640 device_printf(sc_if->sk_if_dev,
3641 "interrupt moderation is %d us.\n",
3645 /* Configure interrupt handling */
3646 CSR_READ_4(sc, SK_ISSR);
3647 if (sc_if->sk_port == SK_PORT_A)
3648 sc->sk_intrmask |= SK_INTRS1;
3650 sc->sk_intrmask |= SK_INTRS2;
3652 sc->sk_intrmask |= SK_ISR_EXTERNAL_REG;
3654 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask);
3657 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_RX_START);
3659 switch(sc->sk_type) {
3661 /* Enable XMACs TX and RX state machines */
3662 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_IGNPAUSE);
3663 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB);
3668 reg = SK_YU_READ_2(sc_if, YUKON_GPCR);
3669 reg |= YU_GPCR_TXEN | YU_GPCR_RXEN;
3671 /* XXX disable 100Mbps and full duplex mode? */
3672 reg &= ~(YU_GPCR_SPEED | YU_GPCR_DPLX_DIS);
3674 SK_YU_WRITE_2(sc_if, YUKON_GPCR, reg);
3677 /* Activate descriptor polling timer */
3678 SK_IF_WRITE_4(sc_if, 0, SK_DPT_TIMER_CTRL, SK_DPT_TCTL_START);
3679 /* start transfer of Tx descriptors */
3680 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_START);
3682 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3683 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3685 switch (sc->sk_type) {
3689 callout_reset(&sc_if->sk_tick_ch, hz, sk_yukon_tick, sc_if);
3693 callout_reset(&sc_if->sk_watchdog_ch, hz, sk_watchdog, ifp);
3700 struct sk_if_softc *sc_if;
3703 struct sk_softc *sc;
3704 struct sk_txdesc *txd;
3705 struct sk_rxdesc *rxd;
3706 struct sk_rxdesc *jrxd;
3710 SK_IF_LOCK_ASSERT(sc_if);
3711 sc = sc_if->sk_softc;
3712 ifp = sc_if->sk_ifp;
3714 callout_stop(&sc_if->sk_tick_ch);
3715 callout_stop(&sc_if->sk_watchdog_ch);
3717 /* stop Tx descriptor polling timer */
3718 SK_IF_WRITE_4(sc_if, 0, SK_DPT_TIMER_CTRL, SK_DPT_TCTL_STOP);
3719 /* stop transfer of Tx descriptors */
3720 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_STOP);
3721 for (i = 0; i < SK_TIMEOUT; i++) {
3722 val = CSR_READ_4(sc, sc_if->sk_tx_bmu);
3723 if ((val & SK_TXBMU_TX_STOP) == 0)
3727 if (i == SK_TIMEOUT)
3728 device_printf(sc_if->sk_if_dev,
3729 "can not stop transfer of Tx descriptor\n");
3730 /* stop transfer of Rx descriptors */
3731 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_RX_STOP);
3732 for (i = 0; i < SK_TIMEOUT; i++) {
3733 val = SK_IF_READ_4(sc_if, 0, SK_RXQ1_BMU_CSR);
3734 if ((val & SK_RXBMU_RX_STOP) == 0)
3738 if (i == SK_TIMEOUT)
3739 device_printf(sc_if->sk_if_dev,
3740 "can not stop transfer of Rx descriptor\n");
3742 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) {
3743 /* Put PHY back into reset. */
3744 val = sk_win_read_4(sc, SK_GPIO);
3745 if (sc_if->sk_port == SK_PORT_A) {
3746 val |= SK_GPIO_DIR0;
3747 val &= ~SK_GPIO_DAT0;
3749 val |= SK_GPIO_DIR2;
3750 val &= ~SK_GPIO_DAT2;
3752 sk_win_write_4(sc, SK_GPIO, val);
3755 /* Turn off various components of this interface. */
3756 SK_XM_SETBIT_2(sc_if, XM_GPIO, XM_GPIO_RESETMAC);
3757 switch (sc->sk_type) {
3759 SK_IF_WRITE_2(sc_if, 0, SK_TXF1_MACCTL, SK_TXMACCTL_XMAC_RESET);
3760 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_RESET);
3765 SK_IF_WRITE_1(sc_if,0, SK_RXMF1_CTRL_TEST, SK_RFCTL_RESET_SET);
3766 SK_IF_WRITE_1(sc_if,0, SK_TXMF1_CTRL_TEST, SK_TFCTL_RESET_SET);
3769 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_OFFLINE);
3770 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_RESET|SK_RBCTL_OFF);
3771 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_BMU_CSR, SK_TXBMU_OFFLINE);
3772 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_RESET|SK_RBCTL_OFF);
3773 SK_IF_WRITE_1(sc_if, 0, SK_TXAR1_COUNTERCTL, SK_TXARCTL_OFF);
3774 SK_IF_WRITE_1(sc_if, 0, SK_RXLED1_CTL, SK_RXLEDCTL_COUNTER_STOP);
3775 SK_IF_WRITE_1(sc_if, 0, SK_TXLED1_CTL, SK_RXLEDCTL_COUNTER_STOP);
3776 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_OFF);
3777 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_LINKSYNC_OFF);
3779 /* Disable interrupts */
3780 if (sc_if->sk_port == SK_PORT_A)
3781 sc->sk_intrmask &= ~SK_INTRS1;
3783 sc->sk_intrmask &= ~SK_INTRS2;
3784 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask);
3786 SK_XM_READ_2(sc_if, XM_ISR);
3787 SK_XM_WRITE_2(sc_if, XM_IMR, 0xFFFF);
3789 /* Free RX and TX mbufs still in the queues. */
3790 for (i = 0; i < SK_RX_RING_CNT; i++) {
3791 rxd = &sc_if->sk_cdata.sk_rxdesc[i];
3792 if (rxd->rx_m != NULL) {
3793 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag,
3794 rxd->rx_dmamap, BUS_DMASYNC_POSTREAD);
3795 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_tag,
3801 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) {
3802 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[i];
3803 if (jrxd->rx_m != NULL) {
3804 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag,
3805 jrxd->rx_dmamap, BUS_DMASYNC_POSTREAD);
3806 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_tag,
3808 m_freem(jrxd->rx_m);
3812 for (i = 0; i < SK_TX_RING_CNT; i++) {
3813 txd = &sc_if->sk_cdata.sk_txdesc[i];
3814 if (txd->tx_m != NULL) {
3815 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag,
3816 txd->tx_dmamap, BUS_DMASYNC_POSTWRITE);
3817 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag,
3824 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING|IFF_DRV_OACTIVE);
3830 sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high)
3836 value = *(int *)arg1;
3837 error = sysctl_handle_int(oidp, &value, 0, req);
3838 if (error || !req->newptr)
3840 if (value < low || value > high)
3842 *(int *)arg1 = value;
3847 sysctl_hw_sk_int_mod(SYSCTL_HANDLER_ARGS)
3849 return (sysctl_int_range(oidp, arg1, arg2, req, SK_IM_MIN, SK_IM_MAX));