if_sf.c revision 134442
149076Swpaul/* 249076Swpaul * Copyright (c) 1997, 1998, 1999 349076Swpaul * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 449076Swpaul * 549076Swpaul * Redistribution and use in source and binary forms, with or without 649076Swpaul * modification, are permitted provided that the following conditions 749076Swpaul * are met: 849076Swpaul * 1. Redistributions of source code must retain the above copyright 949076Swpaul * notice, this list of conditions and the following disclaimer. 1049076Swpaul * 2. Redistributions in binary form must reproduce the above copyright 1149076Swpaul * notice, this list of conditions and the following disclaimer in the 1249076Swpaul * documentation and/or other materials provided with the distribution. 1349076Swpaul * 3. All advertising materials mentioning features or use of this software 1449076Swpaul * must display the following acknowledgement: 1549076Swpaul * This product includes software developed by Bill Paul. 1649076Swpaul * 4. Neither the name of the author nor the names of any co-contributors 1749076Swpaul * may be used to endorse or promote products derived from this software 1849076Swpaul * without specific prior written permission. 1949076Swpaul * 2049076Swpaul * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 2149076Swpaul * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2249076Swpaul * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2349076Swpaul * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 2449076Swpaul * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2549076Swpaul * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2649076Swpaul * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2749076Swpaul * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2849076Swpaul * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2949076Swpaul * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 3049076Swpaul * THE POSSIBILITY OF SUCH DAMAGE. 3149076Swpaul */ 3249076Swpaul 33122678Sobrien#include <sys/cdefs.h> 34122678Sobrien__FBSDID("$FreeBSD: head/sys/dev/sf/if_sf.c 134442 2004-08-28 15:10:35Z rwatson $"); 35122678Sobrien 3649076Swpaul/* 3749076Swpaul * Adaptec AIC-6915 "Starfire" PCI fast ethernet driver for FreeBSD. 3851682Swpaul * Programming manual is available from: 3951682Swpaul * ftp.adaptec.com:/pub/BBS/userguides/aic6915_pg.pdf. 4049076Swpaul * 4149076Swpaul * Written by Bill Paul <wpaul@ctr.columbia.edu> 4249076Swpaul * Department of Electical Engineering 4349076Swpaul * Columbia University, New York City 4449076Swpaul */ 4549076Swpaul/* 4649076Swpaul * The Adaptec AIC-6915 "Starfire" is a 64-bit 10/100 PCI ethernet 4749076Swpaul * controller designed with flexibility and reducing CPU load in mind. 4849076Swpaul * The Starfire offers high and low priority buffer queues, a 4949076Swpaul * producer/consumer index mechanism and several different buffer 5049076Swpaul * queue and completion queue descriptor types. Any one of a number 5149076Swpaul * of different driver designs can be used, depending on system and 5249076Swpaul * OS requirements. This driver makes use of type0 transmit frame 5349076Swpaul * descriptors (since BSD fragments packets across an mbuf chain) 5449076Swpaul * and two RX buffer queues prioritized on size (one queue for small 5549076Swpaul * frames that will fit into a single mbuf, another with full size 5649076Swpaul * mbuf clusters for everything else). The producer/consumer indexes 5749076Swpaul * and completion queues are also used. 5849076Swpaul * 5949076Swpaul * One downside to the Starfire has to do with alignment: buffer 6049076Swpaul * queues must be aligned on 256-byte boundaries, and receive buffers 6149076Swpaul * must be aligned on longword boundaries. The receive buffer alignment 6249076Swpaul * causes problems on the Alpha platform, where the packet payload 6349076Swpaul * should be longword aligned. There is no simple way around this. 6449076Swpaul * 6549076Swpaul * For receive filtering, the Starfire offers 16 perfect filter slots 6649076Swpaul * and a 512-bit hash table. 6749076Swpaul * 6849076Swpaul * The Starfire has no internal transceiver, relying instead on an 6949076Swpaul * external MII-based transceiver. Accessing registers on external 7049076Swpaul * PHYs is done through a special register map rather than with the 7149076Swpaul * usual bitbang MDIO method. 7249076Swpaul * 7349076Swpaul * Acesssing the registers on the Starfire is a little tricky. The 7449076Swpaul * Starfire has a 512K internal register space. When programmed for 7549076Swpaul * PCI memory mapped mode, the entire register space can be accessed 7649076Swpaul * directly. However in I/O space mode, only 256 bytes are directly 7749076Swpaul * mapped into PCI I/O space. The other registers can be accessed 7849076Swpaul * indirectly using the SF_INDIRECTIO_ADDR and SF_INDIRECTIO_DATA 7949076Swpaul * registers inside the 256-byte I/O window. 8049076Swpaul */ 8149076Swpaul 8249076Swpaul#include <sys/param.h> 8349076Swpaul#include <sys/systm.h> 8449076Swpaul#include <sys/sockio.h> 8549076Swpaul#include <sys/mbuf.h> 8649076Swpaul#include <sys/malloc.h> 8749076Swpaul#include <sys/kernel.h> 88129878Sphk#include <sys/module.h> 8949076Swpaul#include <sys/socket.h> 9049076Swpaul 9149076Swpaul#include <net/if.h> 9249076Swpaul#include <net/if_arp.h> 9349076Swpaul#include <net/ethernet.h> 9449076Swpaul#include <net/if_dl.h> 9549076Swpaul#include <net/if_media.h> 9649076Swpaul 9749076Swpaul#include <net/bpf.h> 9849076Swpaul 9949076Swpaul#include <vm/vm.h> /* for vtophys */ 10049076Swpaul#include <vm/pmap.h> /* for vtophys */ 10149076Swpaul#include <machine/bus_pio.h> 10249076Swpaul#include <machine/bus_memio.h> 10349076Swpaul#include <machine/bus.h> 10449076Swpaul#include <machine/resource.h> 10549076Swpaul#include <sys/bus.h> 10649076Swpaul#include <sys/rman.h> 10749076Swpaul 10850675Swpaul#include <dev/mii/mii.h> 10950675Swpaul#include <dev/mii/miivar.h> 11050675Swpaul 11151089Speter/* "controller miibus0" required. See GENERIC if you get errors here. */ 11250675Swpaul#include "miibus_if.h" 11350675Swpaul 114119288Simp#include <dev/pci/pcireg.h> 115119288Simp#include <dev/pci/pcivar.h> 11649076Swpaul 11749076Swpaul#define SF_USEIOSPACE 11849076Swpaul 11949076Swpaul#include <pci/if_sfreg.h> 12049076Swpaul 121113506SmdoddMODULE_DEPEND(sf, pci, 1, 1, 1); 122113506SmdoddMODULE_DEPEND(sf, ether, 1, 1, 1); 12359758SpeterMODULE_DEPEND(sf, miibus, 1, 1, 1); 12459758Speter 12549076Swpaulstatic struct sf_type sf_devs[] = { 12649076Swpaul { AD_VENDORID, AD_DEVICEID_STARFIRE, 12749076Swpaul "Adaptec AIC-6915 10/100BaseTX" }, 12849076Swpaul { 0, 0, NULL } 12949076Swpaul}; 13049076Swpaul 13192739Salfredstatic int sf_probe (device_t); 13292739Salfredstatic int sf_attach (device_t); 13392739Salfredstatic int sf_detach (device_t); 13492739Salfredstatic void sf_intr (void *); 13592739Salfredstatic void sf_stats_update (void *); 13692739Salfredstatic void sf_rxeof (struct sf_softc *); 13792739Salfredstatic void sf_txeof (struct sf_softc *); 13892739Salfredstatic int sf_encap (struct sf_softc *, 13949076Swpaul struct sf_tx_bufdesc_type0 *, 14092739Salfred struct mbuf *); 14192739Salfredstatic void sf_start (struct ifnet *); 14292739Salfredstatic int sf_ioctl (struct ifnet *, u_long, caddr_t); 14392739Salfredstatic void sf_init (void *); 14492739Salfredstatic void sf_stop (struct sf_softc *); 14592739Salfredstatic void sf_watchdog (struct ifnet *); 14692739Salfredstatic void sf_shutdown (device_t); 14792739Salfredstatic int sf_ifmedia_upd (struct ifnet *); 14892739Salfredstatic void sf_ifmedia_sts (struct ifnet *, struct ifmediareq *); 14992739Salfredstatic void sf_reset (struct sf_softc *); 15092739Salfredstatic int sf_init_rx_ring (struct sf_softc *); 15192739Salfredstatic void sf_init_tx_ring (struct sf_softc *); 15292739Salfredstatic int sf_newbuf (struct sf_softc *, 15349076Swpaul struct sf_rx_bufdesc_type0 *, 15492739Salfred struct mbuf *); 15592739Salfredstatic void sf_setmulti (struct sf_softc *); 15692739Salfredstatic int sf_setperf (struct sf_softc *, int, caddr_t); 15792739Salfredstatic int sf_sethash (struct sf_softc *, caddr_t, int); 15849076Swpaul#ifdef notdef 15992739Salfredstatic int sf_setvlan (struct sf_softc *, int, u_int32_t); 16049076Swpaul#endif 16149076Swpaul 16292739Salfredstatic u_int8_t sf_read_eeprom (struct sf_softc *, int); 16349076Swpaul 16492739Salfredstatic int sf_miibus_readreg (device_t, int, int); 16592739Salfredstatic int sf_miibus_writereg (device_t, int, int, int); 16692739Salfredstatic void sf_miibus_statchg (device_t); 16749076Swpaul 16892739Salfredstatic u_int32_t csr_read_4 (struct sf_softc *, int); 16992739Salfredstatic void csr_write_4 (struct sf_softc *, int, u_int32_t); 17092739Salfredstatic void sf_txthresh_adjust (struct sf_softc *); 17149076Swpaul 17249076Swpaul#ifdef SF_USEIOSPACE 17349076Swpaul#define SF_RES SYS_RES_IOPORT 17449076Swpaul#define SF_RID SF_PCI_LOIO 17549076Swpaul#else 17649076Swpaul#define SF_RES SYS_RES_MEMORY 17749076Swpaul#define SF_RID SF_PCI_LOMEM 17849076Swpaul#endif 17949076Swpaul 18049076Swpaulstatic device_method_t sf_methods[] = { 18149076Swpaul /* Device interface */ 18249076Swpaul DEVMETHOD(device_probe, sf_probe), 18349076Swpaul DEVMETHOD(device_attach, sf_attach), 18449076Swpaul DEVMETHOD(device_detach, sf_detach), 18549076Swpaul DEVMETHOD(device_shutdown, sf_shutdown), 18650675Swpaul 18750675Swpaul /* bus interface */ 18850675Swpaul DEVMETHOD(bus_print_child, bus_generic_print_child), 18950675Swpaul DEVMETHOD(bus_driver_added, bus_generic_driver_added), 19050675Swpaul 19150675Swpaul /* MII interface */ 19250675Swpaul DEVMETHOD(miibus_readreg, sf_miibus_readreg), 19350675Swpaul DEVMETHOD(miibus_writereg, sf_miibus_writereg), 19450675Swpaul DEVMETHOD(miibus_statchg, sf_miibus_statchg), 19550675Swpaul 19649076Swpaul { 0, 0 } 19749076Swpaul}; 19849076Swpaul 19949076Swpaulstatic driver_t sf_driver = { 20051455Swpaul "sf", 20149076Swpaul sf_methods, 20249076Swpaul sizeof(struct sf_softc), 20349076Swpaul}; 20449076Swpaul 20549076Swpaulstatic devclass_t sf_devclass; 20649076Swpaul 207113506SmdoddDRIVER_MODULE(sf, pci, sf_driver, sf_devclass, 0, 0); 20851473SwpaulDRIVER_MODULE(miibus, sf, miibus_driver, miibus_devclass, 0, 0); 20949076Swpaul 21049076Swpaul#define SF_SETBIT(sc, reg, x) \ 211105221Sphk csr_write_4(sc, reg, csr_read_4(sc, reg) | (x)) 21249076Swpaul 21349076Swpaul#define SF_CLRBIT(sc, reg, x) \ 214105221Sphk csr_write_4(sc, reg, csr_read_4(sc, reg) & ~(x)) 21549076Swpaul 216102335Salfredstatic u_int32_t 217102335Salfredcsr_read_4(sc, reg) 21849076Swpaul struct sf_softc *sc; 21949076Swpaul int reg; 22049076Swpaul{ 22149076Swpaul u_int32_t val; 22249076Swpaul 22349076Swpaul#ifdef SF_USEIOSPACE 22449076Swpaul CSR_WRITE_4(sc, SF_INDIRECTIO_ADDR, reg + SF_RMAP_INTREG_BASE); 22549076Swpaul val = CSR_READ_4(sc, SF_INDIRECTIO_DATA); 22649076Swpaul#else 22749076Swpaul val = CSR_READ_4(sc, (reg + SF_RMAP_INTREG_BASE)); 22849076Swpaul#endif 22949076Swpaul 23049076Swpaul return(val); 23149076Swpaul} 23249076Swpaul 233102335Salfredstatic u_int8_t 234102335Salfredsf_read_eeprom(sc, reg) 23549076Swpaul struct sf_softc *sc; 23649076Swpaul int reg; 23749076Swpaul{ 23849076Swpaul u_int8_t val; 23949076Swpaul 24049076Swpaul val = (csr_read_4(sc, SF_EEADDR_BASE + 24149076Swpaul (reg & 0xFFFFFFFC)) >> (8 * (reg & 3))) & 0xFF; 24249076Swpaul 24349076Swpaul return(val); 24449076Swpaul} 24549076Swpaul 246102335Salfredstatic void 247102335Salfredcsr_write_4(sc, reg, val) 24849076Swpaul struct sf_softc *sc; 24949076Swpaul int reg; 25049076Swpaul u_int32_t val; 25149076Swpaul{ 25249076Swpaul#ifdef SF_USEIOSPACE 25349076Swpaul CSR_WRITE_4(sc, SF_INDIRECTIO_ADDR, reg + SF_RMAP_INTREG_BASE); 25449076Swpaul CSR_WRITE_4(sc, SF_INDIRECTIO_DATA, val); 25549076Swpaul#else 25649076Swpaul CSR_WRITE_4(sc, (reg + SF_RMAP_INTREG_BASE), val); 25749076Swpaul#endif 25849076Swpaul} 25949076Swpaul 26049076Swpaul/* 26149076Swpaul * Copy the address 'mac' into the perfect RX filter entry at 26249076Swpaul * offset 'idx.' The perfect filter only has 16 entries so do 26349076Swpaul * some sanity tests. 26449076Swpaul */ 265102335Salfredstatic int 266102335Salfredsf_setperf(sc, idx, mac) 26749076Swpaul struct sf_softc *sc; 26849076Swpaul int idx; 26949076Swpaul caddr_t mac; 27049076Swpaul{ 27149076Swpaul u_int16_t *p; 27249076Swpaul 27349076Swpaul if (idx < 0 || idx > SF_RXFILT_PERFECT_CNT) 27449076Swpaul return(EINVAL); 27549076Swpaul 27649076Swpaul if (mac == NULL) 27749076Swpaul return(EINVAL); 27849076Swpaul 27949076Swpaul p = (u_int16_t *)mac; 28049076Swpaul 28149076Swpaul csr_write_4(sc, SF_RXFILT_PERFECT_BASE + 28249076Swpaul (idx * SF_RXFILT_PERFECT_SKIP), htons(p[2])); 28349076Swpaul csr_write_4(sc, SF_RXFILT_PERFECT_BASE + 28449076Swpaul (idx * SF_RXFILT_PERFECT_SKIP) + 4, htons(p[1])); 28549076Swpaul csr_write_4(sc, SF_RXFILT_PERFECT_BASE + 28649076Swpaul (idx * SF_RXFILT_PERFECT_SKIP) + 8, htons(p[0])); 28749076Swpaul 28849076Swpaul return(0); 28949076Swpaul} 29049076Swpaul 29149076Swpaul/* 29249076Swpaul * Set the bit in the 512-bit hash table that corresponds to the 29349076Swpaul * specified mac address 'mac.' If 'prio' is nonzero, update the 29449076Swpaul * priority hash table instead of the filter hash table. 29549076Swpaul */ 296102335Salfredstatic int 297102335Salfredsf_sethash(sc, mac, prio) 29849076Swpaul struct sf_softc *sc; 29949076Swpaul caddr_t mac; 30049076Swpaul int prio; 30149076Swpaul{ 302130270Snaddy u_int32_t h; 30349076Swpaul 30449076Swpaul if (mac == NULL) 30549076Swpaul return(EINVAL); 30649076Swpaul 307130270Snaddy h = ether_crc32_be(mac, ETHER_ADDR_LEN) >> 23; 30849076Swpaul 30949076Swpaul if (prio) { 31049076Swpaul SF_SETBIT(sc, SF_RXFILT_HASH_BASE + SF_RXFILT_HASH_PRIOOFF + 31149076Swpaul (SF_RXFILT_HASH_SKIP * (h >> 4)), (1 << (h & 0xF))); 31249076Swpaul } else { 31349076Swpaul SF_SETBIT(sc, SF_RXFILT_HASH_BASE + SF_RXFILT_HASH_ADDROFF + 31449076Swpaul (SF_RXFILT_HASH_SKIP * (h >> 4)), (1 << (h & 0xF))); 31549076Swpaul } 31649076Swpaul 31749076Swpaul return(0); 31849076Swpaul} 31949076Swpaul 32049076Swpaul#ifdef notdef 32149076Swpaul/* 32249076Swpaul * Set a VLAN tag in the receive filter. 32349076Swpaul */ 324102335Salfredstatic int 325102335Salfredsf_setvlan(sc, idx, vlan) 32649076Swpaul struct sf_softc *sc; 32749076Swpaul int idx; 32849076Swpaul u_int32_t vlan; 32949076Swpaul{ 33049076Swpaul if (idx < 0 || idx >> SF_RXFILT_HASH_CNT) 33149076Swpaul return(EINVAL); 33249076Swpaul 33349076Swpaul csr_write_4(sc, SF_RXFILT_HASH_BASE + 33449076Swpaul (idx * SF_RXFILT_HASH_SKIP) + SF_RXFILT_HASH_VLANOFF, vlan); 33549076Swpaul 33649076Swpaul return(0); 33749076Swpaul} 33849076Swpaul#endif 33949076Swpaul 340102335Salfredstatic int 341102335Salfredsf_miibus_readreg(dev, phy, reg) 34250675Swpaul device_t dev; 34350675Swpaul int phy, reg; 34450675Swpaul{ 34549076Swpaul struct sf_softc *sc; 34649076Swpaul int i; 34749076Swpaul u_int32_t val = 0; 34849076Swpaul 34950675Swpaul sc = device_get_softc(dev); 35050675Swpaul 35149076Swpaul for (i = 0; i < SF_TIMEOUT; i++) { 35250675Swpaul val = csr_read_4(sc, SF_PHY_REG(phy, reg)); 35349076Swpaul if (val & SF_MII_DATAVALID) 35449076Swpaul break; 35549076Swpaul } 35649076Swpaul 35749076Swpaul if (i == SF_TIMEOUT) 35849076Swpaul return(0); 35949076Swpaul 36049076Swpaul if ((val & 0x0000FFFF) == 0xFFFF) 36149076Swpaul return(0); 36249076Swpaul 36349076Swpaul return(val & 0x0000FFFF); 36449076Swpaul} 36549076Swpaul 366102335Salfredstatic int 367102335Salfredsf_miibus_writereg(dev, phy, reg, val) 36850675Swpaul device_t dev; 36950675Swpaul int phy, reg, val; 37050675Swpaul{ 37149076Swpaul struct sf_softc *sc; 37249076Swpaul int i; 37349076Swpaul int busy; 37449076Swpaul 37550675Swpaul sc = device_get_softc(dev); 37649076Swpaul 37750675Swpaul csr_write_4(sc, SF_PHY_REG(phy, reg), val); 37850675Swpaul 37949076Swpaul for (i = 0; i < SF_TIMEOUT; i++) { 38050675Swpaul busy = csr_read_4(sc, SF_PHY_REG(phy, reg)); 38149076Swpaul if (!(busy & SF_MII_BUSY)) 38249076Swpaul break; 38349076Swpaul } 38449076Swpaul 38550675Swpaul return(0); 38650675Swpaul} 38750675Swpaul 388102335Salfredstatic void 389102335Salfredsf_miibus_statchg(dev) 39050675Swpaul device_t dev; 39150675Swpaul{ 39250675Swpaul struct sf_softc *sc; 39350675Swpaul struct mii_data *mii; 39450675Swpaul 39550675Swpaul sc = device_get_softc(dev); 39650675Swpaul mii = device_get_softc(sc->sf_miibus); 39750675Swpaul 39850675Swpaul if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) { 39950675Swpaul SF_SETBIT(sc, SF_MACCFG_1, SF_MACCFG1_FULLDUPLEX); 40054161Swpaul csr_write_4(sc, SF_BKTOBKIPG, SF_IPGT_FDX); 40150675Swpaul } else { 40250675Swpaul SF_CLRBIT(sc, SF_MACCFG_1, SF_MACCFG1_FULLDUPLEX); 40354161Swpaul csr_write_4(sc, SF_BKTOBKIPG, SF_IPGT_HDX); 40450675Swpaul } 40549076Swpaul} 40649076Swpaul 407102335Salfredstatic void 408102335Salfredsf_setmulti(sc) 40949076Swpaul struct sf_softc *sc; 41049076Swpaul{ 41149076Swpaul struct ifnet *ifp; 41249076Swpaul int i; 41349076Swpaul struct ifmultiaddr *ifma; 41449076Swpaul u_int8_t dummy[] = { 0, 0, 0, 0, 0, 0 }; 41549076Swpaul 41649076Swpaul ifp = &sc->arpcom.ac_if; 41749076Swpaul 41849076Swpaul /* First zot all the existing filters. */ 41949076Swpaul for (i = 1; i < SF_RXFILT_PERFECT_CNT; i++) 42049076Swpaul sf_setperf(sc, i, (char *)&dummy); 42149076Swpaul for (i = SF_RXFILT_HASH_BASE; 42249076Swpaul i < (SF_RXFILT_HASH_MAX + 1); i += 4) 42349076Swpaul csr_write_4(sc, i, 0); 42449076Swpaul SF_CLRBIT(sc, SF_RXFILT, SF_RXFILT_ALLMULTI); 42549076Swpaul 42649076Swpaul /* Now program new ones. */ 42749076Swpaul if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 42849076Swpaul SF_SETBIT(sc, SF_RXFILT, SF_RXFILT_ALLMULTI); 42949076Swpaul } else { 43049076Swpaul i = 1; 43172084Sphk TAILQ_FOREACH_REVERSE(ifma, &ifp->if_multiaddrs, ifmultihead, ifma_link) { 43249076Swpaul if (ifma->ifma_addr->sa_family != AF_LINK) 43349076Swpaul continue; 43449076Swpaul /* 43549076Swpaul * Program the first 15 multicast groups 43649076Swpaul * into the perfect filter. For all others, 43749076Swpaul * use the hash table. 43849076Swpaul */ 43949076Swpaul if (i < SF_RXFILT_PERFECT_CNT) { 44049076Swpaul sf_setperf(sc, i, 44149076Swpaul LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 44249076Swpaul i++; 44349076Swpaul continue; 44449076Swpaul } 44549076Swpaul 44649076Swpaul sf_sethash(sc, 44749076Swpaul LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 0); 44849076Swpaul } 44949076Swpaul } 45049076Swpaul} 45149076Swpaul 45249076Swpaul/* 45349076Swpaul * Set media options. 45449076Swpaul */ 455102335Salfredstatic int 456102335Salfredsf_ifmedia_upd(ifp) 45749076Swpaul struct ifnet *ifp; 45849076Swpaul{ 45949076Swpaul struct sf_softc *sc; 46050675Swpaul struct mii_data *mii; 46149076Swpaul 46249076Swpaul sc = ifp->if_softc; 46350675Swpaul mii = device_get_softc(sc->sf_miibus); 46454161Swpaul sc->sf_link = 0; 46554161Swpaul if (mii->mii_instance) { 46654161Swpaul struct mii_softc *miisc; 46772012Sphk LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 46854161Swpaul mii_phy_reset(miisc); 46954161Swpaul } 47050675Swpaul mii_mediachg(mii); 47149076Swpaul 47249076Swpaul return(0); 47349076Swpaul} 47449076Swpaul 47549076Swpaul/* 47649076Swpaul * Report current media status. 47749076Swpaul */ 478102335Salfredstatic void 479102335Salfredsf_ifmedia_sts(ifp, ifmr) 48049076Swpaul struct ifnet *ifp; 48149076Swpaul struct ifmediareq *ifmr; 48249076Swpaul{ 48349076Swpaul struct sf_softc *sc; 48450675Swpaul struct mii_data *mii; 48549076Swpaul 48649076Swpaul sc = ifp->if_softc; 48750675Swpaul mii = device_get_softc(sc->sf_miibus); 48849076Swpaul 48950675Swpaul mii_pollstat(mii); 49050675Swpaul ifmr->ifm_active = mii->mii_media_active; 49150675Swpaul ifmr->ifm_status = mii->mii_media_status; 49249076Swpaul} 49349076Swpaul 494102335Salfredstatic int 495102335Salfredsf_ioctl(ifp, command, data) 49649076Swpaul struct ifnet *ifp; 49749076Swpaul u_long command; 49849076Swpaul caddr_t data; 49949076Swpaul{ 50049076Swpaul struct sf_softc *sc = ifp->if_softc; 50149076Swpaul struct ifreq *ifr = (struct ifreq *) data; 50250675Swpaul struct mii_data *mii; 50367087Swpaul int error = 0; 50449076Swpaul 50567087Swpaul SF_LOCK(sc); 50649076Swpaul 50749076Swpaul switch(command) { 50849076Swpaul case SIOCSIFFLAGS: 50949076Swpaul if (ifp->if_flags & IFF_UP) { 51054161Swpaul if (ifp->if_flags & IFF_RUNNING && 51154161Swpaul ifp->if_flags & IFF_PROMISC && 51254161Swpaul !(sc->sf_if_flags & IFF_PROMISC)) { 51354161Swpaul SF_SETBIT(sc, SF_RXFILT, SF_RXFILT_PROMISC); 51454161Swpaul } else if (ifp->if_flags & IFF_RUNNING && 51554161Swpaul !(ifp->if_flags & IFF_PROMISC) && 51654161Swpaul sc->sf_if_flags & IFF_PROMISC) { 51754161Swpaul SF_CLRBIT(sc, SF_RXFILT, SF_RXFILT_PROMISC); 51854161Swpaul } else if (!(ifp->if_flags & IFF_RUNNING)) 51954161Swpaul sf_init(sc); 52049076Swpaul } else { 52149076Swpaul if (ifp->if_flags & IFF_RUNNING) 52249076Swpaul sf_stop(sc); 52349076Swpaul } 52454161Swpaul sc->sf_if_flags = ifp->if_flags; 52549076Swpaul error = 0; 52649076Swpaul break; 52749076Swpaul case SIOCADDMULTI: 52849076Swpaul case SIOCDELMULTI: 52949076Swpaul sf_setmulti(sc); 53049076Swpaul error = 0; 53149076Swpaul break; 53249076Swpaul case SIOCGIFMEDIA: 53349076Swpaul case SIOCSIFMEDIA: 53450675Swpaul mii = device_get_softc(sc->sf_miibus); 53550675Swpaul error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 53649076Swpaul break; 53749076Swpaul default: 538106936Ssam error = ether_ioctl(ifp, command, data); 53949076Swpaul break; 54049076Swpaul } 54149076Swpaul 54267087Swpaul SF_UNLOCK(sc); 54349076Swpaul 54449076Swpaul return(error); 54549076Swpaul} 54649076Swpaul 547102335Salfredstatic void 548102335Salfredsf_reset(sc) 54949076Swpaul struct sf_softc *sc; 55049076Swpaul{ 55149076Swpaul register int i; 55249076Swpaul 55349076Swpaul csr_write_4(sc, SF_GEN_ETH_CTL, 0); 55449076Swpaul SF_SETBIT(sc, SF_MACCFG_1, SF_MACCFG1_SOFTRESET); 55549076Swpaul DELAY(1000); 55649076Swpaul SF_CLRBIT(sc, SF_MACCFG_1, SF_MACCFG1_SOFTRESET); 55749076Swpaul 55849076Swpaul SF_SETBIT(sc, SF_PCI_DEVCFG, SF_PCIDEVCFG_RESET); 55949076Swpaul 56049076Swpaul for (i = 0; i < SF_TIMEOUT; i++) { 56149076Swpaul DELAY(10); 56249076Swpaul if (!(csr_read_4(sc, SF_PCI_DEVCFG) & SF_PCIDEVCFG_RESET)) 56349076Swpaul break; 56449076Swpaul } 56549076Swpaul 56649076Swpaul if (i == SF_TIMEOUT) 56749076Swpaul printf("sf%d: reset never completed!\n", sc->sf_unit); 56849076Swpaul 56949076Swpaul /* Wait a little while for the chip to get its brains in order. */ 57049076Swpaul DELAY(1000); 57149076Swpaul} 57249076Swpaul 57349076Swpaul/* 57449076Swpaul * Probe for an Adaptec AIC-6915 chip. Check the PCI vendor and device 57549076Swpaul * IDs against our list and return a device name if we find a match. 57649076Swpaul * We also check the subsystem ID so that we can identify exactly which 57749076Swpaul * NIC has been found, if possible. 57849076Swpaul */ 579102335Salfredstatic int 580102335Salfredsf_probe(dev) 58149076Swpaul device_t dev; 58249076Swpaul{ 58349076Swpaul struct sf_type *t; 58449076Swpaul 58549076Swpaul t = sf_devs; 58649076Swpaul 58749076Swpaul while(t->sf_name != NULL) { 58849076Swpaul if ((pci_get_vendor(dev) == t->sf_vid) && 58949076Swpaul (pci_get_device(dev) == t->sf_did)) { 59051336Swpaul switch((pci_read_config(dev, 59151336Swpaul SF_PCI_SUBVEN_ID, 4) >> 16) & 0xFFFF) { 59249076Swpaul case AD_SUBSYSID_62011_REV0: 59349076Swpaul case AD_SUBSYSID_62011_REV1: 59449076Swpaul device_set_desc(dev, 59549076Swpaul "Adaptec ANA-62011 10/100BaseTX"); 59649076Swpaul return(0); 59749076Swpaul case AD_SUBSYSID_62022: 59849076Swpaul device_set_desc(dev, 59949076Swpaul "Adaptec ANA-62022 10/100BaseTX"); 60049076Swpaul return(0); 60153468Swpaul case AD_SUBSYSID_62044_REV0: 60253468Swpaul case AD_SUBSYSID_62044_REV1: 60349076Swpaul device_set_desc(dev, 60449076Swpaul "Adaptec ANA-62044 10/100BaseTX"); 60549076Swpaul return(0); 60649076Swpaul case AD_SUBSYSID_62020: 60749076Swpaul device_set_desc(dev, 60849076Swpaul "Adaptec ANA-62020 10/100BaseFX"); 60949076Swpaul return(0); 61049076Swpaul case AD_SUBSYSID_69011: 61149076Swpaul device_set_desc(dev, 61249076Swpaul "Adaptec ANA-69011 10/100BaseTX"); 61349076Swpaul return(0); 61449076Swpaul default: 61549076Swpaul device_set_desc(dev, t->sf_name); 61649076Swpaul return(0); 61749076Swpaul break; 61849076Swpaul } 61949076Swpaul } 62049076Swpaul t++; 62149076Swpaul } 62249076Swpaul 62349076Swpaul return(ENXIO); 62449076Swpaul} 62549076Swpaul 62649076Swpaul/* 62749076Swpaul * Attach the interface. Allocate softc structures, do ifmedia 62849076Swpaul * setup and ethernet/BPF attach. 62949076Swpaul */ 630102335Salfredstatic int 631102335Salfredsf_attach(dev) 63249076Swpaul device_t dev; 63349076Swpaul{ 63467087Swpaul int i; 63549076Swpaul struct sf_softc *sc; 63649076Swpaul struct ifnet *ifp; 63749076Swpaul int unit, rid, error = 0; 63849076Swpaul 63949076Swpaul sc = device_get_softc(dev); 64049076Swpaul unit = device_get_unit(dev); 64149076Swpaul 64293818Sjhb mtx_init(&sc->sf_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 64393818Sjhb MTX_DEF | MTX_RECURSE); 64449076Swpaul /* 64549076Swpaul * Map control/status registers. 64649076Swpaul */ 64772813Swpaul pci_enable_busmaster(dev); 64849076Swpaul 64949076Swpaul rid = SF_RID; 650127135Snjl sc->sf_res = bus_alloc_resource_any(dev, SF_RES, &rid, RF_ACTIVE); 65149076Swpaul 65249076Swpaul if (sc->sf_res == NULL) { 65349076Swpaul printf ("sf%d: couldn't map ports\n", unit); 65449076Swpaul error = ENXIO; 65549076Swpaul goto fail; 65649076Swpaul } 65749076Swpaul 65849076Swpaul sc->sf_btag = rman_get_bustag(sc->sf_res); 65949076Swpaul sc->sf_bhandle = rman_get_bushandle(sc->sf_res); 66049076Swpaul 66149076Swpaul /* Allocate interrupt */ 66249076Swpaul rid = 0; 663127135Snjl sc->sf_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 66449076Swpaul RF_SHAREABLE | RF_ACTIVE); 66549076Swpaul 66649076Swpaul if (sc->sf_irq == NULL) { 66749076Swpaul printf("sf%d: couldn't map interrupt\n", unit); 66849076Swpaul error = ENXIO; 66949076Swpaul goto fail; 67049076Swpaul } 67149076Swpaul 67249076Swpaul callout_handle_init(&sc->sf_stat_ch); 67349076Swpaul /* Reset the adapter. */ 67449076Swpaul sf_reset(sc); 67549076Swpaul 67649076Swpaul /* 67749076Swpaul * Get station address from the EEPROM. 67849076Swpaul */ 67949076Swpaul for (i = 0; i < ETHER_ADDR_LEN; i++) 68049076Swpaul sc->arpcom.ac_enaddr[i] = 68149076Swpaul sf_read_eeprom(sc, SF_EE_NODEADDR + ETHER_ADDR_LEN - i); 68249076Swpaul 68349076Swpaul sc->sf_unit = unit; 68449076Swpaul 68549076Swpaul /* Allocate the descriptor queues. */ 68649076Swpaul sc->sf_ldata = contigmalloc(sizeof(struct sf_list_data), M_DEVBUF, 68751657Swpaul M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0); 68849076Swpaul 68949076Swpaul if (sc->sf_ldata == NULL) { 69049076Swpaul printf("sf%d: no memory for list buffers!\n", unit); 69149076Swpaul error = ENXIO; 69249076Swpaul goto fail; 69349076Swpaul } 69449076Swpaul 69549076Swpaul bzero(sc->sf_ldata, sizeof(struct sf_list_data)); 69649076Swpaul 69750675Swpaul /* Do MII setup. */ 69850675Swpaul if (mii_phy_probe(dev, &sc->sf_miibus, 69950675Swpaul sf_ifmedia_upd, sf_ifmedia_sts)) { 70049076Swpaul printf("sf%d: MII without any phy!\n", sc->sf_unit); 70149076Swpaul error = ENXIO; 70249076Swpaul goto fail; 70349076Swpaul } 70449076Swpaul 70549076Swpaul ifp = &sc->arpcom.ac_if; 70649076Swpaul ifp->if_softc = sc; 707121816Sbrooks if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 70849076Swpaul ifp->if_mtu = ETHERMTU; 709134442Srwatson ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST | 710134442Srwatson IFF_NEEDSGIANT; 71149076Swpaul ifp->if_ioctl = sf_ioctl; 71249076Swpaul ifp->if_start = sf_start; 71349076Swpaul ifp->if_watchdog = sf_watchdog; 71449076Swpaul ifp->if_init = sf_init; 71549076Swpaul ifp->if_baudrate = 10000000; 71649076Swpaul ifp->if_snd.ifq_maxlen = SF_TX_DLIST_CNT - 1; 71749076Swpaul 71849076Swpaul /* 71963090Sarchie * Call MI attach routine. 72049076Swpaul */ 721106936Ssam ether_ifattach(ifp, sc->arpcom.ac_enaddr); 72249076Swpaul 723113609Snjl /* Hook interrupt last to avoid having to lock softc */ 724112872Snjl error = bus_setup_intr(dev, sc->sf_irq, INTR_TYPE_NET, 725112872Snjl sf_intr, sc, &sc->sf_intrhand); 726112872Snjl 727112872Snjl if (error) { 728112872Snjl printf("sf%d: couldn't set up irq\n", unit); 729113609Snjl ether_ifdetach(ifp); 730112872Snjl goto fail; 731112872Snjl } 732112872Snjl 73349076Swpaulfail: 734112872Snjl if (error) 735112872Snjl sf_detach(dev); 736112872Snjl 73749076Swpaul return(error); 73849076Swpaul} 73949076Swpaul 740113609Snjl/* 741113609Snjl * Shutdown hardware and free up resources. This can be called any 742113609Snjl * time after the mutex has been initialized. It is called in both 743113609Snjl * the error case in attach and the normal detach case so it needs 744113609Snjl * to be careful about only freeing resources that have actually been 745113609Snjl * allocated. 746113609Snjl */ 747102335Salfredstatic int 748102335Salfredsf_detach(dev) 74949076Swpaul device_t dev; 75049076Swpaul{ 75149076Swpaul struct sf_softc *sc; 75249076Swpaul struct ifnet *ifp; 75349076Swpaul 75449076Swpaul sc = device_get_softc(dev); 755112880Sjhb KASSERT(mtx_initialized(&sc->sf_mtx), ("sf mutex not initialized")); 75667087Swpaul SF_LOCK(sc); 75749076Swpaul ifp = &sc->arpcom.ac_if; 75849076Swpaul 759113609Snjl /* These should only be active if attach succeeded */ 760113812Simp if (device_is_attached(dev)) { 761113609Snjl sf_stop(sc); 762112872Snjl ether_ifdetach(ifp); 763113609Snjl } 764113609Snjl if (sc->sf_miibus) 765112872Snjl device_delete_child(dev, sc->sf_miibus); 766113609Snjl bus_generic_detach(dev); 76749076Swpaul 768112872Snjl if (sc->sf_intrhand) 769112872Snjl bus_teardown_intr(dev, sc->sf_irq, sc->sf_intrhand); 770112872Snjl if (sc->sf_irq) 771112872Snjl bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sf_irq); 772112872Snjl if (sc->sf_res) 773112872Snjl bus_release_resource(dev, SF_RES, SF_RID, sc->sf_res); 77450675Swpaul 775112872Snjl if (sc->sf_ldata) 776112872Snjl contigfree(sc->sf_ldata, sizeof(struct sf_list_data), M_DEVBUF); 77749076Swpaul 77867087Swpaul SF_UNLOCK(sc); 77967087Swpaul mtx_destroy(&sc->sf_mtx); 78049076Swpaul 78149076Swpaul return(0); 78249076Swpaul} 78349076Swpaul 784102335Salfredstatic int 785102335Salfredsf_init_rx_ring(sc) 78649076Swpaul struct sf_softc *sc; 78749076Swpaul{ 78849076Swpaul struct sf_list_data *ld; 78949076Swpaul int i; 79049076Swpaul 79149076Swpaul ld = sc->sf_ldata; 79249076Swpaul 79349076Swpaul bzero((char *)ld->sf_rx_dlist_big, 79449076Swpaul sizeof(struct sf_rx_bufdesc_type0) * SF_RX_DLIST_CNT); 79549076Swpaul bzero((char *)ld->sf_rx_clist, 79649076Swpaul sizeof(struct sf_rx_cmpdesc_type3) * SF_RX_CLIST_CNT); 79749076Swpaul 79849076Swpaul for (i = 0; i < SF_RX_DLIST_CNT; i++) { 79949076Swpaul if (sf_newbuf(sc, &ld->sf_rx_dlist_big[i], NULL) == ENOBUFS) 80049076Swpaul return(ENOBUFS); 80149076Swpaul } 80249076Swpaul 80349076Swpaul return(0); 80449076Swpaul} 80549076Swpaul 806102335Salfredstatic void 807102335Salfredsf_init_tx_ring(sc) 80849076Swpaul struct sf_softc *sc; 80949076Swpaul{ 81049076Swpaul struct sf_list_data *ld; 81149076Swpaul int i; 81249076Swpaul 81349076Swpaul ld = sc->sf_ldata; 81449076Swpaul 81549076Swpaul bzero((char *)ld->sf_tx_dlist, 81649076Swpaul sizeof(struct sf_tx_bufdesc_type0) * SF_TX_DLIST_CNT); 81749076Swpaul bzero((char *)ld->sf_tx_clist, 81849076Swpaul sizeof(struct sf_tx_cmpdesc_type0) * SF_TX_CLIST_CNT); 81949076Swpaul 82049076Swpaul for (i = 0; i < SF_TX_DLIST_CNT; i++) 82149076Swpaul ld->sf_tx_dlist[i].sf_id = SF_TX_BUFDESC_ID; 82249076Swpaul for (i = 0; i < SF_TX_CLIST_CNT; i++) 82349076Swpaul ld->sf_tx_clist[i].sf_type = SF_TXCMPTYPE_TX; 82449076Swpaul 82549076Swpaul ld->sf_tx_dlist[SF_TX_DLIST_CNT - 1].sf_end = 1; 82649076Swpaul sc->sf_tx_cnt = 0; 82749076Swpaul} 82849076Swpaul 829102335Salfredstatic int 830102335Salfredsf_newbuf(sc, c, m) 83149076Swpaul struct sf_softc *sc; 83249076Swpaul struct sf_rx_bufdesc_type0 *c; 83349076Swpaul struct mbuf *m; 83449076Swpaul{ 83549076Swpaul struct mbuf *m_new = NULL; 83649076Swpaul 83749076Swpaul if (m == NULL) { 838111119Simp MGETHDR(m_new, M_DONTWAIT, MT_DATA); 83987846Sluigi if (m_new == NULL) 84049076Swpaul return(ENOBUFS); 84149076Swpaul 842111119Simp MCLGET(m_new, M_DONTWAIT); 84349076Swpaul if (!(m_new->m_flags & M_EXT)) { 84449076Swpaul m_freem(m_new); 84549076Swpaul return(ENOBUFS); 84649076Swpaul } 84749076Swpaul m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 84849076Swpaul } else { 84949076Swpaul m_new = m; 85049076Swpaul m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 85149076Swpaul m_new->m_data = m_new->m_ext.ext_buf; 85249076Swpaul } 85349076Swpaul 85449076Swpaul m_adj(m_new, sizeof(u_int64_t)); 85549076Swpaul 85649076Swpaul c->sf_mbuf = m_new; 85749076Swpaul c->sf_addrlo = SF_RX_HOSTADDR(vtophys(mtod(m_new, caddr_t))); 85849076Swpaul c->sf_valid = 1; 85949076Swpaul 86049076Swpaul return(0); 86149076Swpaul} 86249076Swpaul 86349076Swpaul/* 86449076Swpaul * The starfire is programmed to use 'normal' mode for packet reception, 86549076Swpaul * which means we use the consumer/producer model for both the buffer 86649076Swpaul * descriptor queue and the completion descriptor queue. The only problem 86749076Swpaul * with this is that it involves a lot of register accesses: we have to 86849076Swpaul * read the RX completion consumer and producer indexes and the RX buffer 86949076Swpaul * producer index, plus the RX completion consumer and RX buffer producer 87049076Swpaul * indexes have to be updated. It would have been easier if Adaptec had 87149076Swpaul * put each index in a separate register, especially given that the damn 87249076Swpaul * NIC has a 512K register space. 87349076Swpaul * 87449076Swpaul * In spite of all the lovely features that Adaptec crammed into the 6915, 87549076Swpaul * it is marred by one truly stupid design flaw, which is that receive 87649076Swpaul * buffer addresses must be aligned on a longword boundary. This forces 87749076Swpaul * the packet payload to be unaligned, which is suboptimal on the x86 and 87849076Swpaul * completely unuseable on the Alpha. Our only recourse is to copy received 87949076Swpaul * packets into properly aligned buffers before handing them off. 88049076Swpaul */ 88149076Swpaul 882102335Salfredstatic void 883102335Salfredsf_rxeof(sc) 88449076Swpaul struct sf_softc *sc; 88549076Swpaul{ 88649076Swpaul struct mbuf *m; 88749076Swpaul struct ifnet *ifp; 88849076Swpaul struct sf_rx_bufdesc_type0 *desc; 88949076Swpaul struct sf_rx_cmpdesc_type3 *cur_rx; 89049076Swpaul u_int32_t rxcons, rxprod; 89149076Swpaul int cmpprodidx, cmpconsidx, bufprodidx; 89249076Swpaul 893122689Ssam SF_LOCK_ASSERT(sc); 894122689Ssam 89549076Swpaul ifp = &sc->arpcom.ac_if; 89649076Swpaul 89749076Swpaul rxcons = csr_read_4(sc, SF_CQ_CONSIDX); 89849076Swpaul rxprod = csr_read_4(sc, SF_RXDQ_PTR_Q1); 89949076Swpaul cmpprodidx = SF_IDX_LO(csr_read_4(sc, SF_CQ_PRODIDX)); 90049076Swpaul cmpconsidx = SF_IDX_LO(rxcons); 90149076Swpaul bufprodidx = SF_IDX_LO(rxprod); 90249076Swpaul 90349076Swpaul while (cmpconsidx != cmpprodidx) { 90449076Swpaul struct mbuf *m0; 90549076Swpaul 90649076Swpaul cur_rx = &sc->sf_ldata->sf_rx_clist[cmpconsidx]; 90749076Swpaul desc = &sc->sf_ldata->sf_rx_dlist_big[cur_rx->sf_endidx]; 90849076Swpaul m = desc->sf_mbuf; 90949076Swpaul SF_INC(cmpconsidx, SF_RX_CLIST_CNT); 91049076Swpaul SF_INC(bufprodidx, SF_RX_DLIST_CNT); 91149076Swpaul 91249076Swpaul if (!(cur_rx->sf_status1 & SF_RXSTAT1_OK)) { 91349076Swpaul ifp->if_ierrors++; 91449076Swpaul sf_newbuf(sc, desc, m); 91549076Swpaul continue; 91649076Swpaul } 91749076Swpaul 91878508Sbmilekic m0 = m_devget(mtod(m, char *), cur_rx->sf_len, ETHER_ALIGN, 91978508Sbmilekic ifp, NULL); 92049076Swpaul sf_newbuf(sc, desc, m); 92149076Swpaul if (m0 == NULL) { 92249076Swpaul ifp->if_ierrors++; 92349076Swpaul continue; 92449076Swpaul } 92549076Swpaul m = m0; 92649076Swpaul 92749076Swpaul ifp->if_ipackets++; 928122689Ssam SF_UNLOCK(sc); 929106936Ssam (*ifp->if_input)(ifp, m); 930122689Ssam SF_LOCK(sc); 93149076Swpaul } 93249076Swpaul 93349076Swpaul csr_write_4(sc, SF_CQ_CONSIDX, 93449076Swpaul (rxcons & ~SF_CQ_CONSIDX_RXQ1) | cmpconsidx); 93549076Swpaul csr_write_4(sc, SF_RXDQ_PTR_Q1, 93649076Swpaul (rxprod & ~SF_RXDQ_PRODIDX) | bufprodidx); 93749076Swpaul} 93849076Swpaul 93949076Swpaul/* 94049076Swpaul * Read the transmit status from the completion queue and release 94149076Swpaul * mbufs. Note that the buffer descriptor index in the completion 94249076Swpaul * descriptor is an offset from the start of the transmit buffer 94349076Swpaul * descriptor list in bytes. This is important because the manual 94449076Swpaul * gives the impression that it should match the producer/consumer 94549076Swpaul * index, which is the offset in 8 byte blocks. 94649076Swpaul */ 947102335Salfredstatic void 948102335Salfredsf_txeof(sc) 94949076Swpaul struct sf_softc *sc; 95049076Swpaul{ 95149076Swpaul int txcons, cmpprodidx, cmpconsidx; 95249076Swpaul struct sf_tx_cmpdesc_type1 *cur_cmp; 95349076Swpaul struct sf_tx_bufdesc_type0 *cur_tx; 95449076Swpaul struct ifnet *ifp; 95549076Swpaul 95649076Swpaul ifp = &sc->arpcom.ac_if; 95749076Swpaul 95849076Swpaul txcons = csr_read_4(sc, SF_CQ_CONSIDX); 95949076Swpaul cmpprodidx = SF_IDX_HI(csr_read_4(sc, SF_CQ_PRODIDX)); 96049076Swpaul cmpconsidx = SF_IDX_HI(txcons); 96149076Swpaul 96249076Swpaul while (cmpconsidx != cmpprodidx) { 96349076Swpaul cur_cmp = &sc->sf_ldata->sf_tx_clist[cmpconsidx]; 96449076Swpaul cur_tx = &sc->sf_ldata->sf_tx_dlist[cur_cmp->sf_index >> 7]; 96549076Swpaul 96649076Swpaul if (cur_cmp->sf_txstat & SF_TXSTAT_TX_OK) 96749076Swpaul ifp->if_opackets++; 96881737Swpaul else { 96981737Swpaul if (cur_cmp->sf_txstat & SF_TXSTAT_TX_UNDERRUN) 97081737Swpaul sf_txthresh_adjust(sc); 97149076Swpaul ifp->if_oerrors++; 97281737Swpaul } 97349076Swpaul 97449076Swpaul sc->sf_tx_cnt--; 97549076Swpaul if (cur_tx->sf_mbuf != NULL) { 97649076Swpaul m_freem(cur_tx->sf_mbuf); 97749076Swpaul cur_tx->sf_mbuf = NULL; 97881737Swpaul } else 97981737Swpaul break; 98081737Swpaul SF_INC(cmpconsidx, SF_TX_CLIST_CNT); 98149076Swpaul } 98249076Swpaul 98349076Swpaul ifp->if_timer = 0; 98449076Swpaul ifp->if_flags &= ~IFF_OACTIVE; 98549076Swpaul 98649076Swpaul csr_write_4(sc, SF_CQ_CONSIDX, 98749076Swpaul (txcons & ~SF_CQ_CONSIDX_TXQ) | 98849076Swpaul ((cmpconsidx << 16) & 0xFFFF0000)); 98949076Swpaul} 99049076Swpaul 991102335Salfredstatic void 992102335Salfredsf_txthresh_adjust(sc) 99381737Swpaul struct sf_softc *sc; 99481737Swpaul{ 99581737Swpaul u_int32_t txfctl; 99681737Swpaul u_int8_t txthresh; 99781737Swpaul 99881737Swpaul txfctl = csr_read_4(sc, SF_TX_FRAMCTL); 99981737Swpaul txthresh = txfctl & SF_TXFRMCTL_TXTHRESH; 100081737Swpaul if (txthresh < 0xFF) { 100181737Swpaul txthresh++; 100281737Swpaul txfctl &= ~SF_TXFRMCTL_TXTHRESH; 100381737Swpaul txfctl |= txthresh; 100481737Swpaul#ifdef DIAGNOSTIC 100581737Swpaul printf("sf%d: tx underrun, increasing " 100681737Swpaul "tx threshold to %d bytes\n", 100781737Swpaul sc->sf_unit, txthresh * 4); 100881737Swpaul#endif 100981737Swpaul csr_write_4(sc, SF_TX_FRAMCTL, txfctl); 101081737Swpaul } 101181737Swpaul} 101281737Swpaul 1013102335Salfredstatic void 1014102335Salfredsf_intr(arg) 101549076Swpaul void *arg; 101649076Swpaul{ 101749076Swpaul struct sf_softc *sc; 101849076Swpaul struct ifnet *ifp; 101949076Swpaul u_int32_t status; 102049076Swpaul 102149076Swpaul sc = arg; 102267087Swpaul SF_LOCK(sc); 102367087Swpaul 102449076Swpaul ifp = &sc->arpcom.ac_if; 102549076Swpaul 102667087Swpaul if (!(csr_read_4(sc, SF_ISR_SHADOW) & SF_ISR_PCIINT_ASSERTED)) { 102767087Swpaul SF_UNLOCK(sc); 102849076Swpaul return; 102967087Swpaul } 103049076Swpaul 103149076Swpaul /* Disable interrupts. */ 103249076Swpaul csr_write_4(sc, SF_IMR, 0x00000000); 103349076Swpaul 103449076Swpaul for (;;) { 103549076Swpaul status = csr_read_4(sc, SF_ISR); 103649076Swpaul if (status) 103749076Swpaul csr_write_4(sc, SF_ISR, status); 103849076Swpaul 103949076Swpaul if (!(status & SF_INTRS)) 104049076Swpaul break; 104149076Swpaul 104249076Swpaul if (status & SF_ISR_RXDQ1_DMADONE) 104349076Swpaul sf_rxeof(sc); 104449076Swpaul 104581714Swpaul if (status & SF_ISR_TX_TXDONE || 104681714Swpaul status & SF_ISR_TX_DMADONE || 104781737Swpaul status & SF_ISR_TX_QUEUEDONE) 104849076Swpaul sf_txeof(sc); 104949076Swpaul 105081737Swpaul if (status & SF_ISR_TX_LOFIFO) 105181737Swpaul sf_txthresh_adjust(sc); 105281737Swpaul 105349076Swpaul if (status & SF_ISR_ABNORMALINTR) { 105449076Swpaul if (status & SF_ISR_STATSOFLOW) { 105549076Swpaul untimeout(sf_stats_update, sc, 105649076Swpaul sc->sf_stat_ch); 105749076Swpaul sf_stats_update(sc); 105849076Swpaul } else 105949076Swpaul sf_init(sc); 106049076Swpaul } 106149076Swpaul } 106249076Swpaul 106349076Swpaul /* Re-enable interrupts. */ 106449076Swpaul csr_write_4(sc, SF_IMR, SF_INTRS); 106549076Swpaul 106649076Swpaul if (ifp->if_snd.ifq_head != NULL) 106749076Swpaul sf_start(ifp); 106849076Swpaul 106967087Swpaul SF_UNLOCK(sc); 107049076Swpaul} 107149076Swpaul 1072102335Salfredstatic void 1073102335Salfredsf_init(xsc) 107449076Swpaul void *xsc; 107549076Swpaul{ 107649076Swpaul struct sf_softc *sc; 107749076Swpaul struct ifnet *ifp; 107850675Swpaul struct mii_data *mii; 107967087Swpaul int i; 108049076Swpaul 108149076Swpaul sc = xsc; 108267087Swpaul SF_LOCK(sc); 108349076Swpaul ifp = &sc->arpcom.ac_if; 108450675Swpaul mii = device_get_softc(sc->sf_miibus); 108549076Swpaul 108649076Swpaul sf_stop(sc); 108749076Swpaul sf_reset(sc); 108849076Swpaul 108949076Swpaul /* Init all the receive filter registers */ 109049076Swpaul for (i = SF_RXFILT_PERFECT_BASE; 109149076Swpaul i < (SF_RXFILT_HASH_MAX + 1); i += 4) 109249076Swpaul csr_write_4(sc, i, 0); 109349076Swpaul 109449076Swpaul /* Empty stats counter registers. */ 109549076Swpaul for (i = 0; i < sizeof(struct sf_stats)/sizeof(u_int32_t); i++) 109649076Swpaul csr_write_4(sc, SF_STATS_BASE + 109749076Swpaul (i + sizeof(u_int32_t)), 0); 109849076Swpaul 109949076Swpaul /* Init our MAC address */ 110049076Swpaul csr_write_4(sc, SF_PAR0, *(u_int32_t *)(&sc->arpcom.ac_enaddr[0])); 110149076Swpaul csr_write_4(sc, SF_PAR1, *(u_int32_t *)(&sc->arpcom.ac_enaddr[4])); 110249076Swpaul sf_setperf(sc, 0, (caddr_t)&sc->arpcom.ac_enaddr); 110349076Swpaul 110449076Swpaul if (sf_init_rx_ring(sc) == ENOBUFS) { 110549076Swpaul printf("sf%d: initialization failed: no " 110649076Swpaul "memory for rx buffers\n", sc->sf_unit); 110767087Swpaul SF_UNLOCK(sc); 110849076Swpaul return; 110949076Swpaul } 111049076Swpaul 111149076Swpaul sf_init_tx_ring(sc); 111249076Swpaul 111349076Swpaul csr_write_4(sc, SF_RXFILT, SF_PERFMODE_NORMAL|SF_HASHMODE_WITHVLAN); 111449076Swpaul 111549076Swpaul /* If we want promiscuous mode, set the allframes bit. */ 111649076Swpaul if (ifp->if_flags & IFF_PROMISC) { 111749076Swpaul SF_SETBIT(sc, SF_RXFILT, SF_RXFILT_PROMISC); 111849076Swpaul } else { 111949076Swpaul SF_CLRBIT(sc, SF_RXFILT, SF_RXFILT_PROMISC); 112049076Swpaul } 112149076Swpaul 112249076Swpaul if (ifp->if_flags & IFF_BROADCAST) { 112349076Swpaul SF_SETBIT(sc, SF_RXFILT, SF_RXFILT_BROAD); 112449076Swpaul } else { 112549076Swpaul SF_CLRBIT(sc, SF_RXFILT, SF_RXFILT_BROAD); 112649076Swpaul } 112749076Swpaul 112863166Swpaul /* 112963166Swpaul * Load the multicast filter. 113063166Swpaul */ 113163166Swpaul sf_setmulti(sc); 113263166Swpaul 113349076Swpaul /* Init the completion queue indexes */ 113449076Swpaul csr_write_4(sc, SF_CQ_CONSIDX, 0); 113549076Swpaul csr_write_4(sc, SF_CQ_PRODIDX, 0); 113649076Swpaul 113749076Swpaul /* Init the RX completion queue */ 113849076Swpaul csr_write_4(sc, SF_RXCQ_CTL_1, 113949076Swpaul vtophys(sc->sf_ldata->sf_rx_clist) & SF_RXCQ_ADDR); 114049076Swpaul SF_SETBIT(sc, SF_RXCQ_CTL_1, SF_RXCQTYPE_3); 114149076Swpaul 114249076Swpaul /* Init RX DMA control. */ 114349076Swpaul SF_SETBIT(sc, SF_RXDMA_CTL, SF_RXDMA_REPORTBADPKTS); 114449076Swpaul 114549076Swpaul /* Init the RX buffer descriptor queue. */ 114649076Swpaul csr_write_4(sc, SF_RXDQ_ADDR_Q1, 114749076Swpaul vtophys(sc->sf_ldata->sf_rx_dlist_big)); 114849076Swpaul csr_write_4(sc, SF_RXDQ_CTL_1, (MCLBYTES << 16) | SF_DESCSPACE_16BYTES); 114949076Swpaul csr_write_4(sc, SF_RXDQ_PTR_Q1, SF_RX_DLIST_CNT - 1); 115049076Swpaul 115149076Swpaul /* Init the TX completion queue */ 115249076Swpaul csr_write_4(sc, SF_TXCQ_CTL, 115349076Swpaul vtophys(sc->sf_ldata->sf_tx_clist) & SF_RXCQ_ADDR); 115449076Swpaul 115549076Swpaul /* Init the TX buffer descriptor queue. */ 115649076Swpaul csr_write_4(sc, SF_TXDQ_ADDR_HIPRIO, 115749076Swpaul vtophys(sc->sf_ldata->sf_tx_dlist)); 115849076Swpaul SF_SETBIT(sc, SF_TX_FRAMCTL, SF_TXFRMCTL_CPLAFTERTX); 115949076Swpaul csr_write_4(sc, SF_TXDQ_CTL, 116049076Swpaul SF_TXBUFDESC_TYPE0|SF_TXMINSPACE_128BYTES|SF_TXSKIPLEN_8BYTES); 116149076Swpaul SF_SETBIT(sc, SF_TXDQ_CTL, SF_TXDQCTL_NODMACMP); 116249076Swpaul 116349076Swpaul /* Enable autopadding of short TX frames. */ 116449076Swpaul SF_SETBIT(sc, SF_MACCFG_1, SF_MACCFG1_AUTOPAD); 116549076Swpaul 116649076Swpaul /* Enable interrupts. */ 116749076Swpaul csr_write_4(sc, SF_IMR, SF_INTRS); 116849076Swpaul SF_SETBIT(sc, SF_PCI_DEVCFG, SF_PCIDEVCFG_INTR_ENB); 116949076Swpaul 117049076Swpaul /* Enable the RX and TX engines. */ 117149076Swpaul SF_SETBIT(sc, SF_GEN_ETH_CTL, SF_ETHCTL_RX_ENB|SF_ETHCTL_RXDMA_ENB); 117249076Swpaul SF_SETBIT(sc, SF_GEN_ETH_CTL, SF_ETHCTL_TX_ENB|SF_ETHCTL_TXDMA_ENB); 117349076Swpaul 117454161Swpaul /*mii_mediachg(mii);*/ 117554161Swpaul sf_ifmedia_upd(ifp); 117650675Swpaul 117749076Swpaul ifp->if_flags |= IFF_RUNNING; 117849076Swpaul ifp->if_flags &= ~IFF_OACTIVE; 117949076Swpaul 118049076Swpaul sc->sf_stat_ch = timeout(sf_stats_update, sc, hz); 118149076Swpaul 118267087Swpaul SF_UNLOCK(sc); 118349076Swpaul} 118449076Swpaul 1185102335Salfredstatic int 1186102335Salfredsf_encap(sc, c, m_head) 118749076Swpaul struct sf_softc *sc; 118849076Swpaul struct sf_tx_bufdesc_type0 *c; 118949076Swpaul struct mbuf *m_head; 119049076Swpaul{ 119149076Swpaul int frag = 0; 119249076Swpaul struct sf_frag *f = NULL; 119349076Swpaul struct mbuf *m; 119449076Swpaul 119549076Swpaul m = m_head; 119649076Swpaul 119749076Swpaul for (m = m_head, frag = 0; m != NULL; m = m->m_next) { 119849076Swpaul if (m->m_len != 0) { 119949076Swpaul if (frag == SF_MAXFRAGS) 120049076Swpaul break; 120149076Swpaul f = &c->sf_frags[frag]; 120249076Swpaul if (frag == 0) 120349076Swpaul f->sf_pktlen = m_head->m_pkthdr.len; 120449076Swpaul f->sf_fraglen = m->m_len; 120549076Swpaul f->sf_addr = vtophys(mtod(m, vm_offset_t)); 120649076Swpaul frag++; 120749076Swpaul } 120849076Swpaul } 120949076Swpaul 121049076Swpaul if (m != NULL) { 121149076Swpaul struct mbuf *m_new = NULL; 121249076Swpaul 1213111119Simp MGETHDR(m_new, M_DONTWAIT, MT_DATA); 121449076Swpaul if (m_new == NULL) { 1215103139Sticso printf("sf%d: no memory for tx list\n", sc->sf_unit); 121649076Swpaul return(1); 121749076Swpaul } 121849076Swpaul 121949076Swpaul if (m_head->m_pkthdr.len > MHLEN) { 1220111119Simp MCLGET(m_new, M_DONTWAIT); 122149076Swpaul if (!(m_new->m_flags & M_EXT)) { 122249076Swpaul m_freem(m_new); 1223103139Sticso printf("sf%d: no memory for tx list\n", 122449076Swpaul sc->sf_unit); 122549076Swpaul return(1); 122649076Swpaul } 122749076Swpaul } 122849076Swpaul m_copydata(m_head, 0, m_head->m_pkthdr.len, 122949076Swpaul mtod(m_new, caddr_t)); 123049076Swpaul m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len; 123149076Swpaul m_freem(m_head); 123249076Swpaul m_head = m_new; 123349076Swpaul f = &c->sf_frags[0]; 123449076Swpaul f->sf_fraglen = f->sf_pktlen = m_head->m_pkthdr.len; 123549076Swpaul f->sf_addr = vtophys(mtod(m_head, caddr_t)); 123649076Swpaul frag = 1; 123749076Swpaul } 123849076Swpaul 123949076Swpaul c->sf_mbuf = m_head; 124049076Swpaul c->sf_id = SF_TX_BUFDESC_ID; 124149076Swpaul c->sf_fragcnt = frag; 124249076Swpaul c->sf_intr = 1; 124349076Swpaul c->sf_caltcp = 0; 124449076Swpaul c->sf_crcen = 1; 124549076Swpaul 124649076Swpaul return(0); 124749076Swpaul} 124849076Swpaul 1249102335Salfredstatic void 1250102335Salfredsf_start(ifp) 125149076Swpaul struct ifnet *ifp; 125249076Swpaul{ 125349076Swpaul struct sf_softc *sc; 125449076Swpaul struct sf_tx_bufdesc_type0 *cur_tx = NULL; 125549076Swpaul struct mbuf *m_head = NULL; 125649076Swpaul int i, txprod; 125749076Swpaul 125849076Swpaul sc = ifp->if_softc; 125967087Swpaul SF_LOCK(sc); 126049076Swpaul 126181714Swpaul if (!sc->sf_link && ifp->if_snd.ifq_len < 10) { 126267087Swpaul SF_UNLOCK(sc); 126354161Swpaul return; 126467087Swpaul } 126554161Swpaul 126667087Swpaul if (ifp->if_flags & IFF_OACTIVE) { 126767087Swpaul SF_UNLOCK(sc); 126849076Swpaul return; 126967087Swpaul } 127049076Swpaul 127149076Swpaul txprod = csr_read_4(sc, SF_TXDQ_PRODIDX); 127249076Swpaul i = SF_IDX_HI(txprod) >> 4; 127349076Swpaul 127481737Swpaul if (sc->sf_ldata->sf_tx_dlist[i].sf_mbuf != NULL) { 127581737Swpaul printf("sf%d: TX ring full, resetting\n", sc->sf_unit); 127681737Swpaul sf_init(sc); 127781737Swpaul txprod = csr_read_4(sc, SF_TXDQ_PRODIDX); 127881737Swpaul i = SF_IDX_HI(txprod) >> 4; 127981737Swpaul } 128081737Swpaul 128149076Swpaul while(sc->sf_ldata->sf_tx_dlist[i].sf_mbuf == NULL) { 128281737Swpaul if (sc->sf_tx_cnt >= (SF_TX_DLIST_CNT - 5)) { 128371276Swpaul ifp->if_flags |= IFF_OACTIVE; 128471276Swpaul cur_tx = NULL; 128571276Swpaul break; 128671276Swpaul } 128749076Swpaul IF_DEQUEUE(&ifp->if_snd, m_head); 128849076Swpaul if (m_head == NULL) 128949076Swpaul break; 129049076Swpaul 129149076Swpaul cur_tx = &sc->sf_ldata->sf_tx_dlist[i]; 129271276Swpaul if (sf_encap(sc, cur_tx, m_head)) { 129371276Swpaul IF_PREPEND(&ifp->if_snd, m_head); 129471276Swpaul ifp->if_flags |= IFF_OACTIVE; 129571276Swpaul cur_tx = NULL; 129671276Swpaul break; 129771276Swpaul } 129849076Swpaul 129949076Swpaul /* 130049076Swpaul * If there's a BPF listener, bounce a copy of this frame 130149076Swpaul * to him. 130249076Swpaul */ 1303106936Ssam BPF_MTAP(ifp, m_head); 130451583Swpaul 130549076Swpaul SF_INC(i, SF_TX_DLIST_CNT); 130649076Swpaul sc->sf_tx_cnt++; 130781798Swpaul /* 130881798Swpaul * Don't get the TX DMA queue get too full. 130981798Swpaul */ 131081798Swpaul if (sc->sf_tx_cnt > 64) 131181798Swpaul break; 131249076Swpaul } 131349076Swpaul 131467087Swpaul if (cur_tx == NULL) { 131567087Swpaul SF_UNLOCK(sc); 131649076Swpaul return; 131767087Swpaul } 131849076Swpaul 131949076Swpaul /* Transmit */ 132049076Swpaul csr_write_4(sc, SF_TXDQ_PRODIDX, 132149076Swpaul (txprod & ~SF_TXDQ_PRODIDX_HIPRIO) | 132249076Swpaul ((i << 20) & 0xFFFF0000)); 132349076Swpaul 132449076Swpaul ifp->if_timer = 5; 132549076Swpaul 132667087Swpaul SF_UNLOCK(sc); 132749076Swpaul} 132849076Swpaul 1329102335Salfredstatic void 1330102335Salfredsf_stop(sc) 133149076Swpaul struct sf_softc *sc; 133249076Swpaul{ 133349076Swpaul int i; 133449077Swpaul struct ifnet *ifp; 133549076Swpaul 133667087Swpaul SF_LOCK(sc); 133767087Swpaul 133849077Swpaul ifp = &sc->arpcom.ac_if; 133949077Swpaul 134049076Swpaul untimeout(sf_stats_update, sc, sc->sf_stat_ch); 134149076Swpaul 134249076Swpaul csr_write_4(sc, SF_GEN_ETH_CTL, 0); 134349076Swpaul csr_write_4(sc, SF_CQ_CONSIDX, 0); 134449076Swpaul csr_write_4(sc, SF_CQ_PRODIDX, 0); 134549076Swpaul csr_write_4(sc, SF_RXDQ_ADDR_Q1, 0); 134649076Swpaul csr_write_4(sc, SF_RXDQ_CTL_1, 0); 134749076Swpaul csr_write_4(sc, SF_RXDQ_PTR_Q1, 0); 134849076Swpaul csr_write_4(sc, SF_TXCQ_CTL, 0); 134949076Swpaul csr_write_4(sc, SF_TXDQ_ADDR_HIPRIO, 0); 135049076Swpaul csr_write_4(sc, SF_TXDQ_CTL, 0); 135149076Swpaul sf_reset(sc); 135249076Swpaul 135354161Swpaul sc->sf_link = 0; 135454161Swpaul 135549076Swpaul for (i = 0; i < SF_RX_DLIST_CNT; i++) { 135649076Swpaul if (sc->sf_ldata->sf_rx_dlist_big[i].sf_mbuf != NULL) { 135749076Swpaul m_freem(sc->sf_ldata->sf_rx_dlist_big[i].sf_mbuf); 135849076Swpaul sc->sf_ldata->sf_rx_dlist_big[i].sf_mbuf = NULL; 135949076Swpaul } 136049076Swpaul } 136149076Swpaul 136249076Swpaul for (i = 0; i < SF_TX_DLIST_CNT; i++) { 136349076Swpaul if (sc->sf_ldata->sf_tx_dlist[i].sf_mbuf != NULL) { 136449076Swpaul m_freem(sc->sf_ldata->sf_tx_dlist[i].sf_mbuf); 136549076Swpaul sc->sf_ldata->sf_tx_dlist[i].sf_mbuf = NULL; 136649076Swpaul } 136749076Swpaul } 136849076Swpaul 136949077Swpaul ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 137067087Swpaul SF_UNLOCK(sc); 137149076Swpaul} 137249076Swpaul 137349076Swpaul/* 137449076Swpaul * Note: it is important that this function not be interrupted. We 137549076Swpaul * use a two-stage register access scheme: if we are interrupted in 137649076Swpaul * between setting the indirect address register and reading from the 137749076Swpaul * indirect data register, the contents of the address register could 137849076Swpaul * be changed out from under us. 1379131657Sbms */ 1380102335Salfredstatic void 1381102335Salfredsf_stats_update(xsc) 138249076Swpaul void *xsc; 138349076Swpaul{ 138449076Swpaul struct sf_softc *sc; 138549076Swpaul struct ifnet *ifp; 138650675Swpaul struct mii_data *mii; 138749076Swpaul struct sf_stats stats; 138849076Swpaul u_int32_t *ptr; 138967087Swpaul int i; 139049076Swpaul 139149076Swpaul sc = xsc; 139267087Swpaul SF_LOCK(sc); 139349076Swpaul ifp = &sc->arpcom.ac_if; 139450675Swpaul mii = device_get_softc(sc->sf_miibus); 139549076Swpaul 139649076Swpaul ptr = (u_int32_t *)&stats; 139749076Swpaul for (i = 0; i < sizeof(stats)/sizeof(u_int32_t); i++) 139849076Swpaul ptr[i] = csr_read_4(sc, SF_STATS_BASE + 139949076Swpaul (i + sizeof(u_int32_t))); 140049076Swpaul 140149076Swpaul for (i = 0; i < sizeof(stats)/sizeof(u_int32_t); i++) 140249076Swpaul csr_write_4(sc, SF_STATS_BASE + 140349076Swpaul (i + sizeof(u_int32_t)), 0); 140449076Swpaul 140549076Swpaul ifp->if_collisions += stats.sf_tx_single_colls + 140649076Swpaul stats.sf_tx_multi_colls + stats.sf_tx_excess_colls; 140749076Swpaul 140850675Swpaul mii_tick(mii); 140984147Sjlemon 141084147Sjlemon if (!sc->sf_link && mii->mii_media_status & IFM_ACTIVE && 141184147Sjlemon IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 141284147Sjlemon sc->sf_link++; 141384147Sjlemon if (ifp->if_snd.ifq_head != NULL) 141484147Sjlemon sf_start(ifp); 141554161Swpaul } 141650675Swpaul 141749076Swpaul sc->sf_stat_ch = timeout(sf_stats_update, sc, hz); 141849076Swpaul 141967087Swpaul SF_UNLOCK(sc); 142049076Swpaul} 142149076Swpaul 1422102335Salfredstatic void 1423102335Salfredsf_watchdog(ifp) 142449076Swpaul struct ifnet *ifp; 142549076Swpaul{ 142649076Swpaul struct sf_softc *sc; 142749076Swpaul 142849076Swpaul sc = ifp->if_softc; 142949076Swpaul 143067087Swpaul SF_LOCK(sc); 143167087Swpaul 143249076Swpaul ifp->if_oerrors++; 143349076Swpaul printf("sf%d: watchdog timeout\n", sc->sf_unit); 143449076Swpaul 143549076Swpaul sf_stop(sc); 143649076Swpaul sf_reset(sc); 143749076Swpaul sf_init(sc); 143849076Swpaul 143949076Swpaul if (ifp->if_snd.ifq_head != NULL) 144049076Swpaul sf_start(ifp); 144149076Swpaul 144267087Swpaul SF_UNLOCK(sc); 144349076Swpaul} 144449076Swpaul 1445102335Salfredstatic void 1446102335Salfredsf_shutdown(dev) 144749076Swpaul device_t dev; 144849076Swpaul{ 144949076Swpaul struct sf_softc *sc; 145049076Swpaul 145149076Swpaul sc = device_get_softc(dev); 145249076Swpaul 145349076Swpaul sf_stop(sc); 145449076Swpaul} 1455