if_my.c revision 122689
1119418Sobrien/*- 2119418Sobrien * Written by: yen_cw@myson.com.tw 393746Sjulian * Copyright (c) 2002 Myson Technology Inc. 493746Sjulian * All rights reserved. 593746Sjulian * 693746Sjulian * Redistribution and use in source and binary forms, with or without 793746Sjulian * modification, are permitted provided that the following conditions 893746Sjulian * are met: 993746Sjulian * 1. Redistributions of source code must retain the above copyright 1093746Sjulian * notice, this list of conditions, and the following disclaimer, 1193746Sjulian * without modification, immediately at the beginning of the file. 1293746Sjulian * 2. The name of the author may not be used to endorse or promote products 1393746Sjulian * derived from this software without specific prior written permission. 1493746Sjulian * 1593746Sjulian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1693746Sjulian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1793746Sjulian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1893746Sjulian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 1993746Sjulian * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2093746Sjulian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2193746Sjulian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2293746Sjulian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2393746Sjulian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2493746Sjulian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2593746Sjulian * SUCH DAMAGE. 2693746Sjulian * 27119418Sobrien * Myson fast ethernet PCI NIC driver, available at: http://www.myson.com.tw/ 2893746Sjulian */ 29113038Sobrien 30113038Sobrien#include <sys/cdefs.h> 31113038Sobrien__FBSDID("$FreeBSD: head/sys/dev/my/if_my.c 122689 2003-11-14 19:00:32Z sam $"); 32113038Sobrien 3393746Sjulian#include <sys/param.h> 3493746Sjulian#include <sys/systm.h> 3593746Sjulian#include <sys/sockio.h> 3693746Sjulian#include <sys/mbuf.h> 3793746Sjulian#include <sys/malloc.h> 3893746Sjulian#include <sys/kernel.h> 3993746Sjulian#include <sys/socket.h> 4093746Sjulian#include <sys/queue.h> 4193746Sjulian#include <sys/types.h> 4293746Sjulian#include <sys/bus.h> 4393746Sjulian#include <sys/module.h> 4495807Sjulian#include <sys/lock.h> 4595807Sjulian#include <sys/mutex.h> 4693746Sjulian 4793746Sjulian#define NBPFILTER 1 4893746Sjulian 4993746Sjulian#include <net/if.h> 5093746Sjulian#include <net/if_arp.h> 5193746Sjulian#include <net/ethernet.h> 5293746Sjulian#include <net/if_media.h> 5393746Sjulian#include <net/if_dl.h> 5493746Sjulian#include <net/bpf.h> 5593746Sjulian 5693746Sjulian#include <vm/vm.h> /* for vtophys */ 5793746Sjulian#include <vm/pmap.h> /* for vtophys */ 5893746Sjulian#include <machine/clock.h> /* for DELAY */ 5993746Sjulian#include <machine/bus_memio.h> 6093746Sjulian#include <machine/bus_pio.h> 6193746Sjulian#include <machine/bus.h> 6293746Sjulian#include <machine/resource.h> 6393746Sjulian#include <sys/bus.h> 6493746Sjulian#include <sys/rman.h> 6593746Sjulian 66119285Simp#include <dev/pci/pcireg.h> 67119285Simp#include <dev/pci/pcivar.h> 6893746Sjulian 6993746Sjulian#include <dev/mii/mii.h> 7093746Sjulian#include <dev/mii/miivar.h> 7193746Sjulian 7293746Sjulian#include "miibus_if.h" 7393746Sjulian 7493746Sjulian/* 7593746Sjulian * #define MY_USEIOSPACE 7693746Sjulian */ 7793746Sjulian 7893746Sjulianstatic int MY_USEIOSPACE = 1; 7993746Sjulian 8093746Sjulian#if (MY_USEIOSPACE) 8194904Sjulian#define MY_RES SYS_RES_IOPORT 8294904Sjulian#define MY_RID MY_PCI_LOIO 8393746Sjulian#else 8494904Sjulian#define MY_RES SYS_RES_MEMORY 8594904Sjulian#define MY_RID MY_PCI_LOMEM 8693746Sjulian#endif 8793746Sjulian 8893746Sjulian 8993746Sjulian#include <dev/my/if_myreg.h> 9093746Sjulian 9193746Sjulian#ifndef lint 9293746Sjulianstatic const char rcsid[] = 93119285Simp"$Id: if_my.c,v 1.16 2003/04/15 06:37:25 mdodd Exp $"; 9493746Sjulian#endif 9593746Sjulian 9693746Sjulian/* 9793746Sjulian * Various supported device vendors/types and their names. 9893746Sjulian */ 9993746Sjulianstruct my_type *my_info_tmp; 10093746Sjulianstatic struct my_type my_devs[] = { 10193746Sjulian {MYSONVENDORID, MTD800ID, "Myson MTD80X Based Fast Ethernet Card"}, 10293746Sjulian {MYSONVENDORID, MTD803ID, "Myson MTD80X Based Fast Ethernet Card"}, 10393746Sjulian {MYSONVENDORID, MTD891ID, "Myson MTD89X Based Giga Ethernet Card"}, 10493746Sjulian {0, 0, NULL} 10593746Sjulian}; 10693746Sjulian 10793746Sjulian/* 10893746Sjulian * Various supported PHY vendors/types and their names. Note that this driver 10993746Sjulian * will work with pretty much any MII-compliant PHY, so failure to positively 11093746Sjulian * identify the chip is not a fatal error. 11193746Sjulian */ 11293746Sjulianstatic struct my_type my_phys[] = { 11393746Sjulian {MysonPHYID0, MysonPHYID0, "<MYSON MTD981>"}, 11493746Sjulian {SeeqPHYID0, SeeqPHYID0, "<SEEQ 80225>"}, 11593746Sjulian {AhdocPHYID0, AhdocPHYID0, "<AHDOC 101>"}, 11693746Sjulian {MarvellPHYID0, MarvellPHYID0, "<MARVELL 88E1000>"}, 11793746Sjulian {LevelOnePHYID0, LevelOnePHYID0, "<LevelOne LXT1000>"}, 11893746Sjulian {0, 0, "<MII-compliant physical interface>"} 11993746Sjulian}; 12093746Sjulian 12193746Sjulianstatic int my_probe(device_t); 12293746Sjulianstatic int my_attach(device_t); 12393746Sjulianstatic int my_detach(device_t); 12493746Sjulianstatic int my_newbuf(struct my_softc *, struct my_chain_onefrag *); 12593746Sjulianstatic int my_encap(struct my_softc *, struct my_chain *, struct mbuf *); 12693746Sjulianstatic void my_rxeof(struct my_softc *); 12793746Sjulianstatic void my_txeof(struct my_softc *); 12893746Sjulianstatic void my_txeoc(struct my_softc *); 12993746Sjulianstatic void my_intr(void *); 13093746Sjulianstatic void my_start(struct ifnet *); 13193746Sjulianstatic int my_ioctl(struct ifnet *, u_long, caddr_t); 13293746Sjulianstatic void my_init(void *); 13393746Sjulianstatic void my_stop(struct my_softc *); 13493746Sjulianstatic void my_watchdog(struct ifnet *); 13593746Sjulianstatic void my_shutdown(device_t); 13693746Sjulianstatic int my_ifmedia_upd(struct ifnet *); 13793746Sjulianstatic void my_ifmedia_sts(struct ifnet *, struct ifmediareq *); 13893746Sjulianstatic u_int16_t my_phy_readreg(struct my_softc *, int); 13993746Sjulianstatic void my_phy_writereg(struct my_softc *, int, int); 14093746Sjulianstatic void my_autoneg_xmit(struct my_softc *); 14193746Sjulianstatic void my_autoneg_mii(struct my_softc *, int, int); 14293746Sjulianstatic void my_setmode_mii(struct my_softc *, int); 14393746Sjulianstatic void my_getmode_mii(struct my_softc *); 14493746Sjulianstatic void my_setcfg(struct my_softc *, int); 145122625Sobrienstatic u_int32_t my_mchash(caddr_t); 14693746Sjulianstatic void my_setmulti(struct my_softc *); 14793746Sjulianstatic void my_reset(struct my_softc *); 14893746Sjulianstatic int my_list_rx_init(struct my_softc *); 14993746Sjulianstatic int my_list_tx_init(struct my_softc *); 15093746Sjulianstatic long my_send_cmd_to_phy(struct my_softc *, int, int); 15193746Sjulian 152106696Salfred#define MY_SETBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x)) 153106696Salfred#define MY_CLRBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x)) 15493746Sjulian 15593746Sjulianstatic device_method_t my_methods[] = { 15693746Sjulian /* Device interface */ 15793746Sjulian DEVMETHOD(device_probe, my_probe), 15893746Sjulian DEVMETHOD(device_attach, my_attach), 15993746Sjulian DEVMETHOD(device_detach, my_detach), 16093746Sjulian DEVMETHOD(device_shutdown, my_shutdown), 16193746Sjulian 16293746Sjulian {0, 0} 16393746Sjulian}; 16493746Sjulian 16593746Sjulianstatic driver_t my_driver = { 16693746Sjulian "my", 16793746Sjulian my_methods, 16893746Sjulian sizeof(struct my_softc) 16993746Sjulian}; 17093746Sjulian 17193746Sjulianstatic devclass_t my_devclass; 17293746Sjulian 173113506SmdoddDRIVER_MODULE(my, pci, my_driver, my_devclass, 0, 0); 174113506SmdoddMODULE_DEPEND(my, pci, 1, 1, 1); 175113506SmdoddMODULE_DEPEND(my, ether, 1, 1, 1); 17693746Sjulian 17793746Sjulianstatic long 17893746Sjulianmy_send_cmd_to_phy(struct my_softc * sc, int opcode, int regad) 17993746Sjulian{ 18093746Sjulian long miir; 18193746Sjulian int i; 18293746Sjulian int mask, data; 18393746Sjulian 18493746Sjulian MY_LOCK(sc); 18593746Sjulian 18693746Sjulian /* enable MII output */ 18793746Sjulian miir = CSR_READ_4(sc, MY_MANAGEMENT); 18893746Sjulian miir &= 0xfffffff0; 18993746Sjulian 19093746Sjulian miir |= MY_MASK_MIIR_MII_WRITE + MY_MASK_MIIR_MII_MDO; 19193746Sjulian 19293746Sjulian /* send 32 1's preamble */ 19393746Sjulian for (i = 0; i < 32; i++) { 19493746Sjulian /* low MDC; MDO is already high (miir) */ 19593746Sjulian miir &= ~MY_MASK_MIIR_MII_MDC; 19693746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 19793746Sjulian 19893746Sjulian /* high MDC */ 19993746Sjulian miir |= MY_MASK_MIIR_MII_MDC; 20093746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 20193746Sjulian } 20293746Sjulian 20393746Sjulian /* calculate ST+OP+PHYAD+REGAD+TA */ 20493746Sjulian data = opcode | (sc->my_phy_addr << 7) | (regad << 2); 20593746Sjulian 20693746Sjulian /* sent out */ 20793746Sjulian mask = 0x8000; 20893746Sjulian while (mask) { 20993746Sjulian /* low MDC, prepare MDO */ 21093746Sjulian miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO); 21193746Sjulian if (mask & data) 21293746Sjulian miir |= MY_MASK_MIIR_MII_MDO; 21393746Sjulian 21493746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 21593746Sjulian /* high MDC */ 21693746Sjulian miir |= MY_MASK_MIIR_MII_MDC; 21793746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 21893746Sjulian DELAY(30); 21993746Sjulian 22093746Sjulian /* next */ 22193746Sjulian mask >>= 1; 22293746Sjulian if (mask == 0x2 && opcode == MY_OP_READ) 22393746Sjulian miir &= ~MY_MASK_MIIR_MII_WRITE; 22493746Sjulian } 22593746Sjulian 22693746Sjulian MY_UNLOCK(sc); 22793746Sjulian return miir; 22893746Sjulian} 22993746Sjulian 23093746Sjulian 23193746Sjulianstatic u_int16_t 23293746Sjulianmy_phy_readreg(struct my_softc * sc, int reg) 23393746Sjulian{ 23493746Sjulian long miir; 23593746Sjulian int mask, data; 23693746Sjulian 23793746Sjulian MY_LOCK(sc); 23893746Sjulian 23993746Sjulian if (sc->my_info->my_did == MTD803ID) 24093746Sjulian data = CSR_READ_2(sc, MY_PHYBASE + reg * 2); 24193746Sjulian else { 24293746Sjulian miir = my_send_cmd_to_phy(sc, MY_OP_READ, reg); 24393746Sjulian 24493746Sjulian /* read data */ 24593746Sjulian mask = 0x8000; 24693746Sjulian data = 0; 24793746Sjulian while (mask) { 24893746Sjulian /* low MDC */ 24993746Sjulian miir &= ~MY_MASK_MIIR_MII_MDC; 25093746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 25193746Sjulian 25293746Sjulian /* read MDI */ 25393746Sjulian miir = CSR_READ_4(sc, MY_MANAGEMENT); 25493746Sjulian if (miir & MY_MASK_MIIR_MII_MDI) 25593746Sjulian data |= mask; 25693746Sjulian 25793746Sjulian /* high MDC, and wait */ 25893746Sjulian miir |= MY_MASK_MIIR_MII_MDC; 25993746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 26093746Sjulian DELAY(30); 26193746Sjulian 26293746Sjulian /* next */ 26393746Sjulian mask >>= 1; 26493746Sjulian } 26593746Sjulian 26693746Sjulian /* low MDC */ 26793746Sjulian miir &= ~MY_MASK_MIIR_MII_MDC; 26893746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 26993746Sjulian } 27093746Sjulian 27193746Sjulian MY_UNLOCK(sc); 27293746Sjulian return (u_int16_t) data; 27393746Sjulian} 27493746Sjulian 27593746Sjulian 27693746Sjulianstatic void 27793746Sjulianmy_phy_writereg(struct my_softc * sc, int reg, int data) 27893746Sjulian{ 27993746Sjulian long miir; 28093746Sjulian int mask; 28193746Sjulian 28293746Sjulian MY_LOCK(sc); 28393746Sjulian 28493746Sjulian if (sc->my_info->my_did == MTD803ID) 28593746Sjulian CSR_WRITE_2(sc, MY_PHYBASE + reg * 2, data); 28693746Sjulian else { 28793746Sjulian miir = my_send_cmd_to_phy(sc, MY_OP_WRITE, reg); 28893746Sjulian 28993746Sjulian /* write data */ 29093746Sjulian mask = 0x8000; 29193746Sjulian while (mask) { 29293746Sjulian /* low MDC, prepare MDO */ 29393746Sjulian miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO); 29493746Sjulian if (mask & data) 29593746Sjulian miir |= MY_MASK_MIIR_MII_MDO; 29693746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 29793746Sjulian DELAY(1); 29893746Sjulian 29993746Sjulian /* high MDC */ 30093746Sjulian miir |= MY_MASK_MIIR_MII_MDC; 30193746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 30293746Sjulian DELAY(1); 30393746Sjulian 30493746Sjulian /* next */ 30593746Sjulian mask >>= 1; 30693746Sjulian } 30793746Sjulian 30893746Sjulian /* low MDC */ 30993746Sjulian miir &= ~MY_MASK_MIIR_MII_MDC; 31093746Sjulian CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 31193746Sjulian } 31293746Sjulian MY_UNLOCK(sc); 31393746Sjulian return; 31493746Sjulian} 31593746Sjulian 316122625Sobrienstatic u_int32_t 317122625Sobrienmy_mchash(caddr_t addr) 31893746Sjulian{ 31993746Sjulian u_int32_t crc, carry; 320122625Sobrien int idx, bit; 321122625Sobrien u_int8_t data; 32293746Sjulian 32393746Sjulian /* Compute CRC for the address value. */ 32493746Sjulian crc = 0xFFFFFFFF; /* initial value */ 32593746Sjulian 326122625Sobrien for (idx = 0; idx < 6; idx++) { 327122625Sobrien for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) { 328122625Sobrien carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01); 32993746Sjulian crc <<= 1; 33093746Sjulian if (carry) 33193746Sjulian crc = (crc ^ 0x04c11db6) | carry; 33293746Sjulian } 33393746Sjulian } 33493746Sjulian 33593746Sjulian /* 33693746Sjulian * return the filter bit position Note: I arrived at the following 33793746Sjulian * nonsense through experimentation. It's not the usual way to 33893746Sjulian * generate the bit position but it's the only thing I could come up 33993746Sjulian * with that works. 34093746Sjulian */ 34193746Sjulian return (~(crc >> 26) & 0x0000003F); 34293746Sjulian} 34393746Sjulian 34493746Sjulian 34593746Sjulian/* 34693746Sjulian * Program the 64-bit multicast hash filter. 34793746Sjulian */ 34893746Sjulianstatic void 34993746Sjulianmy_setmulti(struct my_softc * sc) 35093746Sjulian{ 35193746Sjulian struct ifnet *ifp; 35293746Sjulian int h = 0; 35393746Sjulian u_int32_t hashes[2] = {0, 0}; 35493746Sjulian struct ifmultiaddr *ifma; 35593746Sjulian u_int32_t rxfilt; 35693746Sjulian int mcnt = 0; 35793746Sjulian 35893746Sjulian MY_LOCK(sc); 35993746Sjulian 36093746Sjulian ifp = &sc->arpcom.ac_if; 36193746Sjulian 36293746Sjulian rxfilt = CSR_READ_4(sc, MY_TCRRCR); 36393746Sjulian 36493746Sjulian if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 36593746Sjulian rxfilt |= MY_AM; 36693746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, rxfilt); 36793746Sjulian CSR_WRITE_4(sc, MY_MAR0, 0xFFFFFFFF); 36893746Sjulian CSR_WRITE_4(sc, MY_MAR1, 0xFFFFFFFF); 36993746Sjulian 37093746Sjulian MY_UNLOCK(sc); 37193746Sjulian 37293746Sjulian return; 37393746Sjulian } 37493746Sjulian /* first, zot all the existing hash bits */ 37593746Sjulian CSR_WRITE_4(sc, MY_MAR0, 0); 37693746Sjulian CSR_WRITE_4(sc, MY_MAR1, 0); 37793746Sjulian 37893746Sjulian /* now program new ones */ 37993746Sjulian TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 38093746Sjulian if (ifma->ifma_addr->sa_family != AF_LINK) 38193746Sjulian continue; 382122625Sobrien h = my_mchash(LLADDR((struct sockaddr_dl *) ifma->ifma_addr)); 38393746Sjulian if (h < 32) 38493746Sjulian hashes[0] |= (1 << h); 38593746Sjulian else 38693746Sjulian hashes[1] |= (1 << (h - 32)); 38793746Sjulian mcnt++; 38893746Sjulian } 38993746Sjulian 39093746Sjulian if (mcnt) 39193746Sjulian rxfilt |= MY_AM; 39293746Sjulian else 39393746Sjulian rxfilt &= ~MY_AM; 39493746Sjulian CSR_WRITE_4(sc, MY_MAR0, hashes[0]); 39593746Sjulian CSR_WRITE_4(sc, MY_MAR1, hashes[1]); 39693746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, rxfilt); 39793746Sjulian MY_UNLOCK(sc); 39893746Sjulian return; 39993746Sjulian} 40093746Sjulian 40193746Sjulian/* 40293746Sjulian * Initiate an autonegotiation session. 40393746Sjulian */ 40493746Sjulianstatic void 40593746Sjulianmy_autoneg_xmit(struct my_softc * sc) 40693746Sjulian{ 40793746Sjulian u_int16_t phy_sts = 0; 40893746Sjulian 40993746Sjulian MY_LOCK(sc); 41093746Sjulian 41193746Sjulian my_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET); 41293746Sjulian DELAY(500); 41393746Sjulian while (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_RESET); 41493746Sjulian 41593746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMCR); 41693746Sjulian phy_sts |= PHY_BMCR_AUTONEGENBL | PHY_BMCR_AUTONEGRSTR; 41793746Sjulian my_phy_writereg(sc, PHY_BMCR, phy_sts); 41893746Sjulian 41993746Sjulian MY_UNLOCK(sc); 42093746Sjulian return; 42193746Sjulian} 42293746Sjulian 42393746Sjulian 42493746Sjulian/* 42593746Sjulian * Invoke autonegotiation on a PHY. 42693746Sjulian */ 42793746Sjulianstatic void 42893746Sjulianmy_autoneg_mii(struct my_softc * sc, int flag, int verbose) 42993746Sjulian{ 43093746Sjulian u_int16_t phy_sts = 0, media, advert, ability; 43193746Sjulian u_int16_t ability2 = 0; 43293746Sjulian struct ifnet *ifp; 43393746Sjulian struct ifmedia *ifm; 43493746Sjulian 43593746Sjulian MY_LOCK(sc); 43693746Sjulian 43793746Sjulian ifm = &sc->ifmedia; 43893746Sjulian ifp = &sc->arpcom.ac_if; 43993746Sjulian 44093746Sjulian ifm->ifm_media = IFM_ETHER | IFM_AUTO; 44193746Sjulian 44293746Sjulian#ifndef FORCE_AUTONEG_TFOUR 44393746Sjulian /* 44493746Sjulian * First, see if autoneg is supported. If not, there's no point in 44593746Sjulian * continuing. 44693746Sjulian */ 44793746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 44893746Sjulian if (!(phy_sts & PHY_BMSR_CANAUTONEG)) { 44993746Sjulian if (verbose) 45093746Sjulian printf("my%d: autonegotiation not supported\n", 45193746Sjulian sc->my_unit); 45293746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 45393746Sjulian MY_UNLOCK(sc); 45493746Sjulian return; 45593746Sjulian } 45693746Sjulian#endif 45793746Sjulian switch (flag) { 45893746Sjulian case MY_FLAG_FORCEDELAY: 45993746Sjulian /* 46093746Sjulian * XXX Never use this option anywhere but in the probe 46193746Sjulian * routine: making the kernel stop dead in its tracks for 46293746Sjulian * three whole seconds after we've gone multi-user is really 46393746Sjulian * bad manners. 46493746Sjulian */ 46593746Sjulian my_autoneg_xmit(sc); 46693746Sjulian DELAY(5000000); 46793746Sjulian break; 46893746Sjulian case MY_FLAG_SCHEDDELAY: 46993746Sjulian /* 47093746Sjulian * Wait for the transmitter to go idle before starting an 47193746Sjulian * autoneg session, otherwise my_start() may clobber our 47293746Sjulian * timeout, and we don't want to allow transmission during an 47393746Sjulian * autoneg session since that can screw it up. 47493746Sjulian */ 47593746Sjulian if (sc->my_cdata.my_tx_head != NULL) { 47693746Sjulian sc->my_want_auto = 1; 47793746Sjulian MY_UNLOCK(sc); 47893746Sjulian return; 47993746Sjulian } 48093746Sjulian my_autoneg_xmit(sc); 48193746Sjulian ifp->if_timer = 5; 48293746Sjulian sc->my_autoneg = 1; 48393746Sjulian sc->my_want_auto = 0; 48493746Sjulian MY_UNLOCK(sc); 48593746Sjulian return; 48693746Sjulian case MY_FLAG_DELAYTIMEO: 48793746Sjulian ifp->if_timer = 0; 48893746Sjulian sc->my_autoneg = 0; 48993746Sjulian break; 49093746Sjulian default: 49193746Sjulian printf("my%d: invalid autoneg flag: %d\n", sc->my_unit, flag); 49293746Sjulian MY_UNLOCK(sc); 49393746Sjulian return; 49493746Sjulian } 49593746Sjulian 49693746Sjulian if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) { 49793746Sjulian if (verbose) 49893746Sjulian printf("my%d: autoneg complete, ", sc->my_unit); 49993746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 50093746Sjulian } else { 50193746Sjulian if (verbose) 50293746Sjulian printf("my%d: autoneg not complete, ", sc->my_unit); 50393746Sjulian } 50493746Sjulian 50593746Sjulian media = my_phy_readreg(sc, PHY_BMCR); 50693746Sjulian 50793746Sjulian /* Link is good. Report modes and set duplex mode. */ 50893746Sjulian if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT) { 50993746Sjulian if (verbose) 51093746Sjulian printf("my%d: link status good. ", sc->my_unit); 51193746Sjulian advert = my_phy_readreg(sc, PHY_ANAR); 51293746Sjulian ability = my_phy_readreg(sc, PHY_LPAR); 51393746Sjulian if ((sc->my_pinfo->my_vid == MarvellPHYID0) || 51493746Sjulian (sc->my_pinfo->my_vid == LevelOnePHYID0)) { 51593746Sjulian ability2 = my_phy_readreg(sc, PHY_1000SR); 51693746Sjulian if (ability2 & PHY_1000SR_1000BTXFULL) { 51793746Sjulian advert = 0; 51893746Sjulian ability = 0; 51993746Sjulian /* 52093746Sjulian * this version did not support 1000M, 52193746Sjulian * ifm->ifm_media = 52295673Sphk * IFM_ETHER|IFM_1000_T|IFM_FDX; 52393746Sjulian */ 52493746Sjulian ifm->ifm_media = 52593746Sjulian IFM_ETHER | IFM_100_TX | IFM_FDX; 52693746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 52793746Sjulian media |= PHY_BMCR_1000; 52893746Sjulian media |= PHY_BMCR_DUPLEX; 52993746Sjulian printf("(full-duplex, 1000Mbps)\n"); 53093746Sjulian } else if (ability2 & PHY_1000SR_1000BTXHALF) { 53193746Sjulian advert = 0; 53293746Sjulian ability = 0; 53393746Sjulian /* 53493746Sjulian * this version did not support 1000M, 53595673Sphk * ifm->ifm_media = IFM_ETHER|IFM_1000_T; 53693746Sjulian */ 53793746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX; 53893746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 53993746Sjulian media &= ~PHY_BMCR_DUPLEX; 54093746Sjulian media |= PHY_BMCR_1000; 54193746Sjulian printf("(half-duplex, 1000Mbps)\n"); 54293746Sjulian } 54393746Sjulian } 54493746Sjulian if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) { 54593746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_T4; 54693746Sjulian media |= PHY_BMCR_SPEEDSEL; 54793746Sjulian media &= ~PHY_BMCR_DUPLEX; 54893746Sjulian printf("(100baseT4)\n"); 54993746Sjulian } else if (advert & PHY_ANAR_100BTXFULL && 55093746Sjulian ability & PHY_ANAR_100BTXFULL) { 55193746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; 55293746Sjulian media |= PHY_BMCR_SPEEDSEL; 55393746Sjulian media |= PHY_BMCR_DUPLEX; 55493746Sjulian printf("(full-duplex, 100Mbps)\n"); 55593746Sjulian } else if (advert & PHY_ANAR_100BTXHALF && 55693746Sjulian ability & PHY_ANAR_100BTXHALF) { 55793746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; 55893746Sjulian media |= PHY_BMCR_SPEEDSEL; 55993746Sjulian media &= ~PHY_BMCR_DUPLEX; 56093746Sjulian printf("(half-duplex, 100Mbps)\n"); 56193746Sjulian } else if (advert & PHY_ANAR_10BTFULL && 56293746Sjulian ability & PHY_ANAR_10BTFULL) { 56393746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; 56493746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 56593746Sjulian media |= PHY_BMCR_DUPLEX; 56693746Sjulian printf("(full-duplex, 10Mbps)\n"); 56793746Sjulian } else if (advert) { 56893746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 56993746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 57093746Sjulian media &= ~PHY_BMCR_DUPLEX; 57193746Sjulian printf("(half-duplex, 10Mbps)\n"); 57293746Sjulian } 57393746Sjulian media &= ~PHY_BMCR_AUTONEGENBL; 57493746Sjulian 57593746Sjulian /* Set ASIC's duplex mode to match the PHY. */ 57693746Sjulian my_phy_writereg(sc, PHY_BMCR, media); 57793746Sjulian my_setcfg(sc, media); 57893746Sjulian } else { 57993746Sjulian if (verbose) 58093746Sjulian printf("my%d: no carrier\n", sc->my_unit); 58193746Sjulian } 58293746Sjulian 58393746Sjulian my_init(sc); 58493746Sjulian if (sc->my_tx_pend) { 58593746Sjulian sc->my_autoneg = 0; 58693746Sjulian sc->my_tx_pend = 0; 58793746Sjulian my_start(ifp); 58893746Sjulian } 58993746Sjulian MY_UNLOCK(sc); 59093746Sjulian return; 59193746Sjulian} 59293746Sjulian 59393746Sjulian/* 59493746Sjulian * To get PHY ability. 59593746Sjulian */ 59693746Sjulianstatic void 59793746Sjulianmy_getmode_mii(struct my_softc * sc) 59893746Sjulian{ 59993746Sjulian u_int16_t bmsr; 60093746Sjulian struct ifnet *ifp; 60193746Sjulian 60293746Sjulian MY_LOCK(sc); 60393746Sjulian ifp = &sc->arpcom.ac_if; 60493746Sjulian bmsr = my_phy_readreg(sc, PHY_BMSR); 60593746Sjulian if (bootverbose) 60693746Sjulian printf("my%d: PHY status word: %x\n", sc->my_unit, bmsr); 60793746Sjulian 60893746Sjulian /* fallback */ 60993746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 61093746Sjulian 61193746Sjulian if (bmsr & PHY_BMSR_10BTHALF) { 61293746Sjulian if (bootverbose) 61393746Sjulian printf("my%d: 10Mbps half-duplex mode supported\n", 61493746Sjulian sc->my_unit); 61593746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX, 61693746Sjulian 0, NULL); 61793746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T, 0, NULL); 61893746Sjulian } 61993746Sjulian if (bmsr & PHY_BMSR_10BTFULL) { 62093746Sjulian if (bootverbose) 62193746Sjulian printf("my%d: 10Mbps full-duplex mode supported\n", 62293746Sjulian sc->my_unit); 62393746Sjulian 62493746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX, 62593746Sjulian 0, NULL); 62693746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; 62793746Sjulian } 62893746Sjulian if (bmsr & PHY_BMSR_100BTXHALF) { 62993746Sjulian if (bootverbose) 63093746Sjulian printf("my%d: 100Mbps half-duplex mode supported\n", 63193746Sjulian sc->my_unit); 63293746Sjulian ifp->if_baudrate = 100000000; 63393746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL); 63493746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX, 63593746Sjulian 0, NULL); 63693746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; 63793746Sjulian } 63893746Sjulian if (bmsr & PHY_BMSR_100BTXFULL) { 63993746Sjulian if (bootverbose) 64093746Sjulian printf("my%d: 100Mbps full-duplex mode supported\n", 64193746Sjulian sc->my_unit); 64293746Sjulian ifp->if_baudrate = 100000000; 64393746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX, 64493746Sjulian 0, NULL); 64593746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; 64693746Sjulian } 64793746Sjulian /* Some also support 100BaseT4. */ 64893746Sjulian if (bmsr & PHY_BMSR_100BT4) { 64993746Sjulian if (bootverbose) 65093746Sjulian printf("my%d: 100baseT4 mode supported\n", sc->my_unit); 65193746Sjulian ifp->if_baudrate = 100000000; 65293746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_T4, 0, NULL); 65393746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_T4; 65493746Sjulian#ifdef FORCE_AUTONEG_TFOUR 65593746Sjulian if (bootverbose) 65693746Sjulian printf("my%d: forcing on autoneg support for BT4\n", 65793746Sjulian sc->my_unit); 65893746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0 NULL): 65993746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; 66093746Sjulian#endif 66193746Sjulian } 66294863Sjulian#if 0 /* this version did not support 1000M, */ 66393746Sjulian if (sc->my_pinfo->my_vid == MarvellPHYID0) { 66493746Sjulian if (bootverbose) 66593746Sjulian printf("my%d: 1000Mbps half-duplex mode supported\n", 66693746Sjulian sc->my_unit); 66793746Sjulian 66893746Sjulian ifp->if_baudrate = 1000000000; 66995673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T, 0, NULL); 67095673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_HDX, 67193746Sjulian 0, NULL); 67293746Sjulian if (bootverbose) 67393746Sjulian printf("my%d: 1000Mbps full-duplex mode supported\n", 67493746Sjulian sc->my_unit); 67593746Sjulian ifp->if_baudrate = 1000000000; 67695673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_FDX, 67793746Sjulian 0, NULL); 67895673Sphk sc->ifmedia.ifm_media = IFM_ETHER | IFM_1000_T | IFM_FDX; 67993746Sjulian } 68093746Sjulian#endif 68193746Sjulian if (bmsr & PHY_BMSR_CANAUTONEG) { 68293746Sjulian if (bootverbose) 68393746Sjulian printf("my%d: autoneg supported\n", sc->my_unit); 68493746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); 68593746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; 68693746Sjulian } 68793746Sjulian MY_UNLOCK(sc); 68893746Sjulian return; 68993746Sjulian} 69093746Sjulian 69193746Sjulian/* 69293746Sjulian * Set speed and duplex mode. 69393746Sjulian */ 69493746Sjulianstatic void 69593746Sjulianmy_setmode_mii(struct my_softc * sc, int media) 69693746Sjulian{ 69793746Sjulian u_int16_t bmcr; 69893746Sjulian struct ifnet *ifp; 69993746Sjulian 70093746Sjulian MY_LOCK(sc); 70193746Sjulian ifp = &sc->arpcom.ac_if; 70293746Sjulian /* 70393746Sjulian * If an autoneg session is in progress, stop it. 70493746Sjulian */ 70593746Sjulian if (sc->my_autoneg) { 70693746Sjulian printf("my%d: canceling autoneg session\n", sc->my_unit); 70793746Sjulian ifp->if_timer = sc->my_autoneg = sc->my_want_auto = 0; 70893746Sjulian bmcr = my_phy_readreg(sc, PHY_BMCR); 70993746Sjulian bmcr &= ~PHY_BMCR_AUTONEGENBL; 71093746Sjulian my_phy_writereg(sc, PHY_BMCR, bmcr); 71193746Sjulian } 71293746Sjulian printf("my%d: selecting MII, ", sc->my_unit); 71393746Sjulian bmcr = my_phy_readreg(sc, PHY_BMCR); 71493746Sjulian bmcr &= ~(PHY_BMCR_AUTONEGENBL | PHY_BMCR_SPEEDSEL | PHY_BMCR_1000 | 71593746Sjulian PHY_BMCR_DUPLEX | PHY_BMCR_LOOPBK); 71694863Sjulian 71794863Sjulian#if 0 /* this version did not support 1000M, */ 71895673Sphk if (IFM_SUBTYPE(media) == IFM_1000_T) { 71993746Sjulian printf("1000Mbps/T4, half-duplex\n"); 72093746Sjulian bmcr &= ~PHY_BMCR_SPEEDSEL; 72193746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 72293746Sjulian bmcr |= PHY_BMCR_1000; 72393746Sjulian } 72493746Sjulian#endif 72593746Sjulian if (IFM_SUBTYPE(media) == IFM_100_T4) { 72693746Sjulian printf("100Mbps/T4, half-duplex\n"); 72793746Sjulian bmcr |= PHY_BMCR_SPEEDSEL; 72893746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 72993746Sjulian } 73093746Sjulian if (IFM_SUBTYPE(media) == IFM_100_TX) { 73193746Sjulian printf("100Mbps, "); 73293746Sjulian bmcr |= PHY_BMCR_SPEEDSEL; 73393746Sjulian } 73493746Sjulian if (IFM_SUBTYPE(media) == IFM_10_T) { 73593746Sjulian printf("10Mbps, "); 73693746Sjulian bmcr &= ~PHY_BMCR_SPEEDSEL; 73793746Sjulian } 73893746Sjulian if ((media & IFM_GMASK) == IFM_FDX) { 73993746Sjulian printf("full duplex\n"); 74093746Sjulian bmcr |= PHY_BMCR_DUPLEX; 74193746Sjulian } else { 74293746Sjulian printf("half duplex\n"); 74393746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 74493746Sjulian } 74593746Sjulian my_phy_writereg(sc, PHY_BMCR, bmcr); 74693746Sjulian my_setcfg(sc, bmcr); 74793746Sjulian MY_UNLOCK(sc); 74893746Sjulian return; 74993746Sjulian} 75093746Sjulian 75193746Sjulian/* 75293746Sjulian * The Myson manual states that in order to fiddle with the 'full-duplex' and 75393746Sjulian * '100Mbps' bits in the netconfig register, we first have to put the 75493746Sjulian * transmit and/or receive logic in the idle state. 75593746Sjulian */ 75693746Sjulianstatic void 75793746Sjulianmy_setcfg(struct my_softc * sc, int bmcr) 75893746Sjulian{ 75993746Sjulian int i, restart = 0; 76093746Sjulian 76193746Sjulian MY_LOCK(sc); 76293746Sjulian if (CSR_READ_4(sc, MY_TCRRCR) & (MY_TE | MY_RE)) { 76393746Sjulian restart = 1; 76493746Sjulian MY_CLRBIT(sc, MY_TCRRCR, (MY_TE | MY_RE)); 76593746Sjulian for (i = 0; i < MY_TIMEOUT; i++) { 76693746Sjulian DELAY(10); 76793746Sjulian if (!(CSR_READ_4(sc, MY_TCRRCR) & 76893746Sjulian (MY_TXRUN | MY_RXRUN))) 76993746Sjulian break; 77093746Sjulian } 77193746Sjulian if (i == MY_TIMEOUT) 77293746Sjulian printf("my%d: failed to force tx and rx to idle \n", 77393746Sjulian sc->my_unit); 77493746Sjulian } 77593746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PS1000); 77693746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PS10); 77793746Sjulian if (bmcr & PHY_BMCR_1000) 77893746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PS1000); 77993746Sjulian else if (!(bmcr & PHY_BMCR_SPEEDSEL)) 78093746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PS10); 78193746Sjulian if (bmcr & PHY_BMCR_DUPLEX) 78293746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_FD); 78393746Sjulian else 78493746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_FD); 78593746Sjulian if (restart) 78693746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_TE | MY_RE); 78793746Sjulian MY_UNLOCK(sc); 78893746Sjulian return; 78993746Sjulian} 79093746Sjulian 79193746Sjulianstatic void 79293746Sjulianmy_reset(struct my_softc * sc) 79393746Sjulian{ 79493746Sjulian register int i; 79593746Sjulian 79693746Sjulian MY_LOCK(sc); 79793746Sjulian MY_SETBIT(sc, MY_BCR, MY_SWR); 79893746Sjulian for (i = 0; i < MY_TIMEOUT; i++) { 79993746Sjulian DELAY(10); 80093746Sjulian if (!(CSR_READ_4(sc, MY_BCR) & MY_SWR)) 80193746Sjulian break; 80293746Sjulian } 80393746Sjulian if (i == MY_TIMEOUT) 80493746Sjulian printf("m0x%d: reset never completed!\n", sc->my_unit); 80593746Sjulian 80693746Sjulian /* Wait a little while for the chip to get its brains in order. */ 80793746Sjulian DELAY(1000); 80893746Sjulian MY_UNLOCK(sc); 80993746Sjulian return; 81093746Sjulian} 81193746Sjulian 81293746Sjulian/* 81393746Sjulian * Probe for a Myson chip. Check the PCI vendor and device IDs against our 81493746Sjulian * list and return a device name if we find a match. 81593746Sjulian */ 81693746Sjulianstatic int 81793746Sjulianmy_probe(device_t dev) 81893746Sjulian{ 81993746Sjulian struct my_type *t; 82093746Sjulian 82193746Sjulian t = my_devs; 82293746Sjulian while (t->my_name != NULL) { 82393746Sjulian if ((pci_get_vendor(dev) == t->my_vid) && 82493746Sjulian (pci_get_device(dev) == t->my_did)) { 82593746Sjulian device_set_desc(dev, t->my_name); 82693746Sjulian my_info_tmp = t; 82793746Sjulian return (0); 82893746Sjulian } 82993746Sjulian t++; 83093746Sjulian } 83193746Sjulian return (ENXIO); 83293746Sjulian} 83393746Sjulian 83493746Sjulian/* 83593746Sjulian * Attach the interface. Allocate softc structures, do ifmedia setup and 83693746Sjulian * ethernet/BPF attach. 83793746Sjulian */ 83893746Sjulianstatic int 83993746Sjulianmy_attach(device_t dev) 84093746Sjulian{ 84193746Sjulian int s, i; 84293746Sjulian u_char eaddr[ETHER_ADDR_LEN]; 84393746Sjulian u_int32_t command, iobase; 84493746Sjulian struct my_softc *sc; 84593746Sjulian struct ifnet *ifp; 84693746Sjulian int media = IFM_ETHER | IFM_100_TX | IFM_FDX; 84793746Sjulian unsigned int round; 84893746Sjulian caddr_t roundptr; 84993746Sjulian struct my_type *p; 85093746Sjulian u_int16_t phy_vid, phy_did, phy_sts = 0; 85193746Sjulian int rid, unit, error = 0; 85293746Sjulian 85393746Sjulian s = splimp(); 85493746Sjulian sc = device_get_softc(dev); 85593746Sjulian unit = device_get_unit(dev); 85693746Sjulian if (sc == NULL) { 85793746Sjulian printf("my%d: no memory for softc struct!\n", unit); 85893746Sjulian error = ENXIO; 85993746Sjulian goto fail; 86093746Sjulian 86193746Sjulian } 86293746Sjulian bzero(sc, sizeof(struct my_softc)); 86395803Sjulian mtx_init(&sc->my_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 86495803Sjulian MTX_DEF | MTX_RECURSE); 86593746Sjulian MY_LOCK(sc); 86693746Sjulian 86793746Sjulian /* 86893746Sjulian * Map control/status registers. 86993746Sjulian */ 87094863Sjulian#if 0 87194863Sjulian command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4); 87294863Sjulian command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN); 87394863Sjulian pci_write_config(dev, PCI_COMMAND_STATUS_REG, command & 0x000000ff, 4); 87494863Sjulian command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4); 87594863Sjulian#endif 87693746Sjulian command = pci_read_config(dev, PCIR_COMMAND, 4); 87793746Sjulian command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN); 87893746Sjulian pci_write_config(dev, PCIR_COMMAND, command & 0x000000ff, 4); 87993746Sjulian command = pci_read_config(dev, PCIR_COMMAND, 4); 88093746Sjulian 88193746Sjulian if (my_info_tmp->my_did == MTD800ID) { 88293746Sjulian iobase = pci_read_config(dev, MY_PCI_LOIO, 4); 88393746Sjulian if (iobase & 0x300) 88493746Sjulian MY_USEIOSPACE = 0; 88593746Sjulian } 88693746Sjulian if (MY_USEIOSPACE) { 88793746Sjulian if (!(command & PCIM_CMD_PORTEN)) { 88893746Sjulian printf("my%d: failed to enable I/O ports!\n", unit); 88993746Sjulian free(sc, M_DEVBUF); 89093746Sjulian error = ENXIO; 89193746Sjulian goto fail; 89293746Sjulian } 89393746Sjulian#if 0 89494863Sjulian if (!pci_map_port(config_id, MY_PCI_LOIO, (u_int16_t *) & (sc->my_bhandle))) { 89594863Sjulian printf("my%d: couldn't map ports\n", unit); 89694863Sjulian error = ENXIO; 89794863Sjulian goto fail; 89893746Sjulian } 89993746Sjulian 90093746Sjulian sc->my_btag = I386_BUS_SPACE_IO; 90193746Sjulian#endif 90293746Sjulian } else { 90393746Sjulian if (!(command & PCIM_CMD_MEMEN)) { 90493746Sjulian printf("my%d: failed to enable memory mapping!\n", 90593746Sjulian unit); 90693746Sjulian error = ENXIO; 90793746Sjulian goto fail; 90893746Sjulian } 90993746Sjulian#if 0 91093746Sjulian if (!pci_map_mem(config_id, MY_PCI_LOMEM, &vbase, &pbase)) { 91193746Sjulian printf ("my%d: couldn't map memory\n", unit); 91293746Sjulian error = ENXIO; 91393746Sjulian goto fail; 91493746Sjulian } 91594863Sjulian sc->my_btag = I386_BUS_SPACE_MEM; 91694863Sjulian sc->my_bhandle = vbase; 91793746Sjulian#endif 91893746Sjulian } 91993746Sjulian 92093746Sjulian rid = MY_RID; 92193746Sjulian sc->my_res = bus_alloc_resource(dev, MY_RES, &rid, 92293746Sjulian 0, ~0, 1, RF_ACTIVE); 92393746Sjulian 92493746Sjulian if (sc->my_res == NULL) { 92593746Sjulian printf("my%d: couldn't map ports/memory\n", unit); 92693746Sjulian error = ENXIO; 92793746Sjulian goto fail; 92893746Sjulian } 92993746Sjulian sc->my_btag = rman_get_bustag(sc->my_res); 93093746Sjulian sc->my_bhandle = rman_get_bushandle(sc->my_res); 93193746Sjulian 93293746Sjulian rid = 0; 93393746Sjulian sc->my_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 93493746Sjulian RF_SHAREABLE | RF_ACTIVE); 93593746Sjulian 93693746Sjulian if (sc->my_irq == NULL) { 93793746Sjulian printf("my%d: couldn't map interrupt\n", unit); 93893746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 93993746Sjulian error = ENXIO; 94093746Sjulian goto fail; 94193746Sjulian } 94293746Sjulian error = bus_setup_intr(dev, sc->my_irq, INTR_TYPE_NET, 94393746Sjulian my_intr, sc, &sc->my_intrhand); 94493746Sjulian 94593746Sjulian if (error) { 94693746Sjulian bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq); 94793746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 94893746Sjulian printf("my%d: couldn't set up irq\n", unit); 94993746Sjulian goto fail; 95093746Sjulian } 95193746Sjulian callout_handle_init(&sc->my_stat_ch); 95293746Sjulian 95393746Sjulian sc->my_info = my_info_tmp; 95493746Sjulian 95593746Sjulian /* Reset the adapter. */ 95693746Sjulian my_reset(sc); 95793746Sjulian 95893746Sjulian /* 95993746Sjulian * Get station address 96093746Sjulian */ 96193746Sjulian for (i = 0; i < ETHER_ADDR_LEN; ++i) 96293746Sjulian eaddr[i] = CSR_READ_1(sc, MY_PAR0 + i); 96393746Sjulian 96493746Sjulian /* 96593746Sjulian * A Myson chip was detected. Inform the world. 96693746Sjulian */ 96793746Sjulian printf("my%d: Ethernet address: %6D\n", unit, eaddr, ":"); 96893746Sjulian 96993746Sjulian sc->my_unit = unit; 97093746Sjulian bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 97193746Sjulian 97293746Sjulian sc->my_ldata_ptr = malloc(sizeof(struct my_list_data) + 8, 97393746Sjulian M_DEVBUF, M_NOWAIT); 97493746Sjulian if (sc->my_ldata_ptr == NULL) { 97593746Sjulian free(sc, M_DEVBUF); 97693746Sjulian printf("my%d: no memory for list buffers!\n", unit); 97793746Sjulian error = ENXIO; 97893746Sjulian goto fail; 97993746Sjulian } 98093746Sjulian sc->my_ldata = (struct my_list_data *) sc->my_ldata_ptr; 981106588Sjhb round = (uintptr_t)sc->my_ldata_ptr & 0xF; 98293746Sjulian roundptr = sc->my_ldata_ptr; 98393746Sjulian for (i = 0; i < 8; i++) { 98493746Sjulian if (round % 8) { 98593746Sjulian round++; 98693746Sjulian roundptr++; 98793746Sjulian } else 98893746Sjulian break; 98993746Sjulian } 99093746Sjulian sc->my_ldata = (struct my_list_data *) roundptr; 99193746Sjulian bzero(sc->my_ldata, sizeof(struct my_list_data)); 99293746Sjulian 99393746Sjulian ifp = &sc->arpcom.ac_if; 99493746Sjulian ifp->if_softc = sc; 995121816Sbrooks if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 99693746Sjulian ifp->if_mtu = ETHERMTU; 99793746Sjulian ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 99893746Sjulian ifp->if_ioctl = my_ioctl; 99993746Sjulian ifp->if_output = ether_output; 100093746Sjulian ifp->if_start = my_start; 100193746Sjulian ifp->if_watchdog = my_watchdog; 100293746Sjulian ifp->if_init = my_init; 100393746Sjulian ifp->if_baudrate = 10000000; 100493746Sjulian ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 100593746Sjulian 100693746Sjulian if (sc->my_info->my_did == MTD803ID) 100793746Sjulian sc->my_pinfo = my_phys; 100893746Sjulian else { 100993746Sjulian if (bootverbose) 101093746Sjulian printf("my%d: probing for a PHY\n", sc->my_unit); 101193746Sjulian for (i = MY_PHYADDR_MIN; i < MY_PHYADDR_MAX + 1; i++) { 101293746Sjulian if (bootverbose) 101393746Sjulian printf("my%d: checking address: %d\n", 101493746Sjulian sc->my_unit, i); 101593746Sjulian sc->my_phy_addr = i; 101693746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 101793746Sjulian if ((phy_sts != 0) && (phy_sts != 0xffff)) 101893746Sjulian break; 101993746Sjulian else 102093746Sjulian phy_sts = 0; 102193746Sjulian } 102293746Sjulian if (phy_sts) { 102393746Sjulian phy_vid = my_phy_readreg(sc, PHY_VENID); 102493746Sjulian phy_did = my_phy_readreg(sc, PHY_DEVID); 102593746Sjulian if (bootverbose) { 102693746Sjulian printf("my%d: found PHY at address %d, ", 102793746Sjulian sc->my_unit, sc->my_phy_addr); 102893746Sjulian printf("vendor id: %x device id: %x\n", 102993746Sjulian phy_vid, phy_did); 103093746Sjulian } 103193746Sjulian p = my_phys; 103293746Sjulian while (p->my_vid) { 103393746Sjulian if (phy_vid == p->my_vid) { 103493746Sjulian sc->my_pinfo = p; 103593746Sjulian break; 103693746Sjulian } 103793746Sjulian p++; 103893746Sjulian } 103993746Sjulian if (sc->my_pinfo == NULL) 104093746Sjulian sc->my_pinfo = &my_phys[PHY_UNKNOWN]; 104193746Sjulian if (bootverbose) 104293746Sjulian printf("my%d: PHY type: %s\n", 104393746Sjulian sc->my_unit, sc->my_pinfo->my_name); 104493746Sjulian } else { 104593746Sjulian printf("my%d: MII without any phy!\n", sc->my_unit); 104693746Sjulian error = ENXIO; 104793746Sjulian goto fail; 104893746Sjulian } 104993746Sjulian } 105093746Sjulian 105193746Sjulian /* Do ifmedia setup. */ 105293746Sjulian ifmedia_init(&sc->ifmedia, 0, my_ifmedia_upd, my_ifmedia_sts); 105393746Sjulian my_getmode_mii(sc); 105493746Sjulian my_autoneg_mii(sc, MY_FLAG_FORCEDELAY, 1); 105593746Sjulian media = sc->ifmedia.ifm_media; 105693746Sjulian my_stop(sc); 105793746Sjulian ifmedia_set(&sc->ifmedia, media); 105893746Sjulian 1059106937Ssam ether_ifattach(ifp, eaddr); 106093746Sjulian 106193746Sjulian#if 0 106293746Sjulian at_shutdown(my_shutdown, sc, SHUTDOWN_POST_SYNC); 106393746Sjulian shutdownhook_establish(my_shutdown, sc); 106493746Sjulian#endif 106593746Sjulian 106693746Sjulian MY_UNLOCK(sc); 106793746Sjulian return (0); 106893746Sjulian 106993746Sjulianfail: 107093746Sjulian MY_UNLOCK(sc); 107193746Sjulian mtx_destroy(&sc->my_mtx); 107293746Sjulian splx(s); 107393746Sjulian return (error); 107493746Sjulian} 107593746Sjulian 107693746Sjulianstatic int 107793746Sjulianmy_detach(device_t dev) 107893746Sjulian{ 107993746Sjulian struct my_softc *sc; 108093746Sjulian struct ifnet *ifp; 108193746Sjulian int s; 108293746Sjulian 108393746Sjulian s = splimp(); 108493746Sjulian sc = device_get_softc(dev); 108593746Sjulian MY_LOCK(sc); 108693746Sjulian ifp = &sc->arpcom.ac_if; 1087106937Ssam ether_ifdetach(ifp); 108893746Sjulian my_stop(sc); 108993746Sjulian 109094863Sjulian#if 0 109194863Sjulian bus_generic_detach(dev); 109294863Sjulian device_delete_child(dev, sc->rl_miibus); 109394863Sjulian#endif 109494863Sjulian 109593746Sjulian bus_teardown_intr(dev, sc->my_irq, sc->my_intrhand); 109693746Sjulian bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq); 109793746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 109894863Sjulian#if 0 109994863Sjulian contigfree(sc->my_cdata.my_rx_buf, MY_RXBUFLEN + 32, M_DEVBUF); 110094863Sjulian#endif 110193746Sjulian free(sc, M_DEVBUF); 110293746Sjulian MY_UNLOCK(sc); 110393746Sjulian splx(s); 110493746Sjulian mtx_destroy(&sc->my_mtx); 110593746Sjulian return (0); 110693746Sjulian} 110793746Sjulian 110893746Sjulian 110993746Sjulian/* 111093746Sjulian * Initialize the transmit descriptors. 111193746Sjulian */ 111293746Sjulianstatic int 111393746Sjulianmy_list_tx_init(struct my_softc * sc) 111493746Sjulian{ 111593746Sjulian struct my_chain_data *cd; 111693746Sjulian struct my_list_data *ld; 111793746Sjulian int i; 111893746Sjulian 111993746Sjulian MY_LOCK(sc); 112093746Sjulian cd = &sc->my_cdata; 112193746Sjulian ld = sc->my_ldata; 112293746Sjulian for (i = 0; i < MY_TX_LIST_CNT; i++) { 112393746Sjulian cd->my_tx_chain[i].my_ptr = &ld->my_tx_list[i]; 112493746Sjulian if (i == (MY_TX_LIST_CNT - 1)) 112593746Sjulian cd->my_tx_chain[i].my_nextdesc = &cd->my_tx_chain[0]; 112693746Sjulian else 112793746Sjulian cd->my_tx_chain[i].my_nextdesc = 112893746Sjulian &cd->my_tx_chain[i + 1]; 112993746Sjulian } 113093746Sjulian cd->my_tx_free = &cd->my_tx_chain[0]; 113193746Sjulian cd->my_tx_tail = cd->my_tx_head = NULL; 113293746Sjulian MY_UNLOCK(sc); 113393746Sjulian return (0); 113493746Sjulian} 113593746Sjulian 113693746Sjulian/* 113793746Sjulian * Initialize the RX descriptors and allocate mbufs for them. Note that we 113893746Sjulian * arrange the descriptors in a closed ring, so that the last descriptor 113993746Sjulian * points back to the first. 114093746Sjulian */ 114193746Sjulianstatic int 114293746Sjulianmy_list_rx_init(struct my_softc * sc) 114393746Sjulian{ 114493746Sjulian struct my_chain_data *cd; 114593746Sjulian struct my_list_data *ld; 114693746Sjulian int i; 114793746Sjulian 114893746Sjulian MY_LOCK(sc); 114993746Sjulian cd = &sc->my_cdata; 115093746Sjulian ld = sc->my_ldata; 115193746Sjulian for (i = 0; i < MY_RX_LIST_CNT; i++) { 115293746Sjulian cd->my_rx_chain[i].my_ptr = 115393746Sjulian (struct my_desc *) & ld->my_rx_list[i]; 115497641Sjulian if (my_newbuf(sc, &cd->my_rx_chain[i]) == ENOBUFS) { 115597641Sjulian MY_UNLOCK(sc); 115693746Sjulian return (ENOBUFS); 115797641Sjulian } 115893746Sjulian if (i == (MY_RX_LIST_CNT - 1)) { 115993746Sjulian cd->my_rx_chain[i].my_nextdesc = &cd->my_rx_chain[0]; 116093746Sjulian ld->my_rx_list[i].my_next = vtophys(&ld->my_rx_list[0]); 116193746Sjulian } else { 116293746Sjulian cd->my_rx_chain[i].my_nextdesc = 116393746Sjulian &cd->my_rx_chain[i + 1]; 116493746Sjulian ld->my_rx_list[i].my_next = 116593746Sjulian vtophys(&ld->my_rx_list[i + 1]); 116693746Sjulian } 116793746Sjulian } 116893746Sjulian cd->my_rx_head = &cd->my_rx_chain[0]; 116993746Sjulian MY_UNLOCK(sc); 117093746Sjulian return (0); 117193746Sjulian} 117293746Sjulian 117393746Sjulian/* 117493746Sjulian * Initialize an RX descriptor and attach an MBUF cluster. 117593746Sjulian */ 117693746Sjulianstatic int 117793746Sjulianmy_newbuf(struct my_softc * sc, struct my_chain_onefrag * c) 117893746Sjulian{ 117993746Sjulian struct mbuf *m_new = NULL; 118093746Sjulian 118193746Sjulian MY_LOCK(sc); 1182111119Simp MGETHDR(m_new, M_DONTWAIT, MT_DATA); 118393746Sjulian if (m_new == NULL) { 118493746Sjulian printf("my%d: no memory for rx list -- packet dropped!\n", 118593746Sjulian sc->my_unit); 118695939Sjulian MY_UNLOCK(sc); 118793746Sjulian return (ENOBUFS); 118893746Sjulian } 1189111119Simp MCLGET(m_new, M_DONTWAIT); 119093746Sjulian if (!(m_new->m_flags & M_EXT)) { 119193746Sjulian printf("my%d: no memory for rx list -- packet dropped!\n", 119293746Sjulian sc->my_unit); 119393746Sjulian m_freem(m_new); 119495939Sjulian MY_UNLOCK(sc); 119593746Sjulian return (ENOBUFS); 119693746Sjulian } 119793746Sjulian c->my_mbuf = m_new; 119893746Sjulian c->my_ptr->my_data = vtophys(mtod(m_new, caddr_t)); 119993746Sjulian c->my_ptr->my_ctl = (MCLBYTES - 1) << MY_RBSShift; 120093746Sjulian c->my_ptr->my_status = MY_OWNByNIC; 120193746Sjulian MY_UNLOCK(sc); 120293746Sjulian return (0); 120393746Sjulian} 120493746Sjulian 120593746Sjulian/* 120693746Sjulian * A frame has been uploaded: pass the resulting mbuf chain up to the higher 120793746Sjulian * level protocols. 120893746Sjulian */ 120993746Sjulianstatic void 121093746Sjulianmy_rxeof(struct my_softc * sc) 121193746Sjulian{ 121293746Sjulian struct ether_header *eh; 121393746Sjulian struct mbuf *m; 121493746Sjulian struct ifnet *ifp; 121593746Sjulian struct my_chain_onefrag *cur_rx; 121693746Sjulian int total_len = 0; 121793746Sjulian u_int32_t rxstat; 121893746Sjulian 121993746Sjulian MY_LOCK(sc); 122093746Sjulian ifp = &sc->arpcom.ac_if; 122193746Sjulian while (!((rxstat = sc->my_cdata.my_rx_head->my_ptr->my_status) 122293746Sjulian & MY_OWNByNIC)) { 122393746Sjulian cur_rx = sc->my_cdata.my_rx_head; 122493746Sjulian sc->my_cdata.my_rx_head = cur_rx->my_nextdesc; 122593746Sjulian 122693746Sjulian if (rxstat & MY_ES) { /* error summary: give up this rx pkt */ 122793746Sjulian ifp->if_ierrors++; 122893746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 122993746Sjulian continue; 123093746Sjulian } 123193746Sjulian /* No errors; receive the packet. */ 123293746Sjulian total_len = (rxstat & MY_FLNGMASK) >> MY_FLNGShift; 123393746Sjulian total_len -= ETHER_CRC_LEN; 123493746Sjulian 123593746Sjulian if (total_len < MINCLSIZE) { 123693746Sjulian m = m_devget(mtod(cur_rx->my_mbuf, char *), 123793746Sjulian total_len, 0, ifp, NULL); 123893746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 123993746Sjulian if (m == NULL) { 124093746Sjulian ifp->if_ierrors++; 124193746Sjulian continue; 124293746Sjulian } 124393746Sjulian } else { 124493746Sjulian m = cur_rx->my_mbuf; 124593746Sjulian /* 124693746Sjulian * Try to conjure up a new mbuf cluster. If that 124793746Sjulian * fails, it means we have an out of memory condition 124893746Sjulian * and should leave the buffer in place and continue. 124993746Sjulian * This will result in a lost packet, but there's 125093746Sjulian * little else we can do in this situation. 125193746Sjulian */ 125293746Sjulian if (my_newbuf(sc, cur_rx) == ENOBUFS) { 125393746Sjulian ifp->if_ierrors++; 125493746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 125593746Sjulian continue; 125693746Sjulian } 125793746Sjulian m->m_pkthdr.rcvif = ifp; 125893746Sjulian m->m_pkthdr.len = m->m_len = total_len; 125993746Sjulian } 126093746Sjulian ifp->if_ipackets++; 126193746Sjulian eh = mtod(m, struct ether_header *); 126293746Sjulian#if NBPFILTER > 0 126393746Sjulian /* 126493746Sjulian * Handle BPF listeners. Let the BPF user see the packet, but 126593746Sjulian * don't pass it up to the ether_input() layer unless it's a 126693746Sjulian * broadcast packet, multicast packet, matches our ethernet 126793746Sjulian * address or the interface is in promiscuous mode. 126893746Sjulian */ 126993746Sjulian if (ifp->if_bpf) { 1270106937Ssam BPF_MTAP(ifp, m); 127193746Sjulian if (ifp->if_flags & IFF_PROMISC && 127293746Sjulian (bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr, 127393746Sjulian ETHER_ADDR_LEN) && 127493746Sjulian (eh->ether_dhost[0] & 1) == 0)) { 127593746Sjulian m_freem(m); 127693746Sjulian continue; 127793746Sjulian } 127893746Sjulian } 127993746Sjulian#endif 1280122689Ssam MY_UNLOCK(sc); 1281106937Ssam (*ifp->if_input)(ifp, m); 1282122689Ssam MY_LOCK(sc); 128393746Sjulian } 128493746Sjulian MY_UNLOCK(sc); 128593746Sjulian return; 128693746Sjulian} 128793746Sjulian 128893746Sjulian 128993746Sjulian/* 129093746Sjulian * A frame was downloaded to the chip. It's safe for us to clean up the list 129193746Sjulian * buffers. 129293746Sjulian */ 129393746Sjulianstatic void 129493746Sjulianmy_txeof(struct my_softc * sc) 129593746Sjulian{ 129693746Sjulian struct my_chain *cur_tx; 129793746Sjulian struct ifnet *ifp; 129893746Sjulian 129993746Sjulian MY_LOCK(sc); 130093746Sjulian ifp = &sc->arpcom.ac_if; 130193746Sjulian /* Clear the timeout timer. */ 130293746Sjulian ifp->if_timer = 0; 130395939Sjulian if (sc->my_cdata.my_tx_head == NULL) { 130495939Sjulian MY_UNLOCK(sc); 130593746Sjulian return; 130695939Sjulian } 130793746Sjulian /* 130893746Sjulian * Go through our tx list and free mbufs for those frames that have 130993746Sjulian * been transmitted. 131093746Sjulian */ 131193746Sjulian while (sc->my_cdata.my_tx_head->my_mbuf != NULL) { 131293746Sjulian u_int32_t txstat; 131393746Sjulian 131493746Sjulian cur_tx = sc->my_cdata.my_tx_head; 131593746Sjulian txstat = MY_TXSTATUS(cur_tx); 131693746Sjulian if ((txstat & MY_OWNByNIC) || txstat == MY_UNSENT) 131793746Sjulian break; 131893746Sjulian if (!(CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced)) { 131993746Sjulian if (txstat & MY_TXERR) { 132093746Sjulian ifp->if_oerrors++; 132193746Sjulian if (txstat & MY_EC) /* excessive collision */ 132293746Sjulian ifp->if_collisions++; 132393746Sjulian if (txstat & MY_LC) /* late collision */ 132493746Sjulian ifp->if_collisions++; 132593746Sjulian } 132693746Sjulian ifp->if_collisions += (txstat & MY_NCRMASK) >> 132793746Sjulian MY_NCRShift; 132893746Sjulian } 132993746Sjulian ifp->if_opackets++; 133093746Sjulian m_freem(cur_tx->my_mbuf); 133193746Sjulian cur_tx->my_mbuf = NULL; 133293746Sjulian if (sc->my_cdata.my_tx_head == sc->my_cdata.my_tx_tail) { 133393746Sjulian sc->my_cdata.my_tx_head = NULL; 133493746Sjulian sc->my_cdata.my_tx_tail = NULL; 133593746Sjulian break; 133693746Sjulian } 133793746Sjulian sc->my_cdata.my_tx_head = cur_tx->my_nextdesc; 133893746Sjulian } 133993746Sjulian if (CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced) { 134093746Sjulian ifp->if_collisions += (CSR_READ_4(sc, MY_TSR) & MY_NCRMask); 134193746Sjulian } 134293746Sjulian MY_UNLOCK(sc); 134393746Sjulian return; 134493746Sjulian} 134593746Sjulian 134693746Sjulian/* 134793746Sjulian * TX 'end of channel' interrupt handler. 134893746Sjulian */ 134993746Sjulianstatic void 135093746Sjulianmy_txeoc(struct my_softc * sc) 135193746Sjulian{ 135293746Sjulian struct ifnet *ifp; 135393746Sjulian 135493746Sjulian MY_LOCK(sc); 135593746Sjulian ifp = &sc->arpcom.ac_if; 135693746Sjulian ifp->if_timer = 0; 135793746Sjulian if (sc->my_cdata.my_tx_head == NULL) { 135893746Sjulian ifp->if_flags &= ~IFF_OACTIVE; 135993746Sjulian sc->my_cdata.my_tx_tail = NULL; 136093746Sjulian if (sc->my_want_auto) 136193746Sjulian my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1); 136293746Sjulian } else { 136393746Sjulian if (MY_TXOWN(sc->my_cdata.my_tx_head) == MY_UNSENT) { 136493746Sjulian MY_TXOWN(sc->my_cdata.my_tx_head) = MY_OWNByNIC; 136593746Sjulian ifp->if_timer = 5; 136693746Sjulian CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF); 136793746Sjulian } 136893746Sjulian } 136993746Sjulian MY_UNLOCK(sc); 137093746Sjulian return; 137193746Sjulian} 137293746Sjulian 137393746Sjulianstatic void 137493746Sjulianmy_intr(void *arg) 137593746Sjulian{ 137693746Sjulian struct my_softc *sc; 137793746Sjulian struct ifnet *ifp; 137893746Sjulian u_int32_t status; 137993746Sjulian 138093746Sjulian sc = arg; 138193746Sjulian MY_LOCK(sc); 138293746Sjulian ifp = &sc->arpcom.ac_if; 138393746Sjulian if (!(ifp->if_flags & IFF_UP)) { 138493746Sjulian MY_UNLOCK(sc); 138593746Sjulian return; 138693746Sjulian } 138793746Sjulian /* Disable interrupts. */ 138893746Sjulian CSR_WRITE_4(sc, MY_IMR, 0x00000000); 138993746Sjulian 139093746Sjulian for (;;) { 139193746Sjulian status = CSR_READ_4(sc, MY_ISR); 139293746Sjulian status &= MY_INTRS; 139393746Sjulian if (status) 139493746Sjulian CSR_WRITE_4(sc, MY_ISR, status); 139593746Sjulian else 139693746Sjulian break; 139793746Sjulian 139893746Sjulian if (status & MY_RI) /* receive interrupt */ 139993746Sjulian my_rxeof(sc); 140093746Sjulian 140193746Sjulian if ((status & MY_RBU) || (status & MY_RxErr)) { 140293746Sjulian /* rx buffer unavailable or rx error */ 140393746Sjulian ifp->if_ierrors++; 140493746Sjulian#ifdef foo 140593746Sjulian my_stop(sc); 140693746Sjulian my_reset(sc); 140793746Sjulian my_init(sc); 140893746Sjulian#endif 140993746Sjulian } 141093746Sjulian if (status & MY_TI) /* tx interrupt */ 141193746Sjulian my_txeof(sc); 141293746Sjulian if (status & MY_ETI) /* tx early interrupt */ 141393746Sjulian my_txeof(sc); 141493746Sjulian if (status & MY_TBU) /* tx buffer unavailable */ 141593746Sjulian my_txeoc(sc); 141694863Sjulian 141794863Sjulian#if 0 /* 90/1/18 delete */ 141894863Sjulian if (status & MY_FBE) { 141994863Sjulian my_reset(sc); 142094863Sjulian my_init(sc); 142194863Sjulian } 142294863Sjulian#endif 142394863Sjulian 142493746Sjulian } 142593746Sjulian 142693746Sjulian /* Re-enable interrupts. */ 142793746Sjulian CSR_WRITE_4(sc, MY_IMR, MY_INTRS); 142893746Sjulian if (ifp->if_snd.ifq_head != NULL) 142993746Sjulian my_start(ifp); 143093746Sjulian MY_UNLOCK(sc); 143193746Sjulian return; 143293746Sjulian} 143393746Sjulian 143493746Sjulian/* 143593746Sjulian * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data 143693746Sjulian * pointers to the fragment pointers. 143793746Sjulian */ 143893746Sjulianstatic int 143993746Sjulianmy_encap(struct my_softc * sc, struct my_chain * c, struct mbuf * m_head) 144093746Sjulian{ 144193746Sjulian struct my_desc *f = NULL; 144293746Sjulian int total_len; 144393746Sjulian struct mbuf *m, *m_new = NULL; 144493746Sjulian 144593746Sjulian MY_LOCK(sc); 144693746Sjulian /* calculate the total tx pkt length */ 144793746Sjulian total_len = 0; 144893746Sjulian for (m = m_head; m != NULL; m = m->m_next) 144993746Sjulian total_len += m->m_len; 145093746Sjulian /* 145193746Sjulian * Start packing the mbufs in this chain into the fragment pointers. 145293746Sjulian * Stop when we run out of fragments or hit the end of the mbuf 145393746Sjulian * chain. 145493746Sjulian */ 145593746Sjulian m = m_head; 1456111119Simp MGETHDR(m_new, M_DONTWAIT, MT_DATA); 145793746Sjulian if (m_new == NULL) { 145893746Sjulian printf("my%d: no memory for tx list", sc->my_unit); 145995939Sjulian MY_UNLOCK(sc); 146093746Sjulian return (1); 146193746Sjulian } 146293746Sjulian if (m_head->m_pkthdr.len > MHLEN) { 1463111119Simp MCLGET(m_new, M_DONTWAIT); 146493746Sjulian if (!(m_new->m_flags & M_EXT)) { 146593746Sjulian m_freem(m_new); 146693746Sjulian printf("my%d: no memory for tx list", sc->my_unit); 146795939Sjulian MY_UNLOCK(sc); 146893746Sjulian return (1); 146993746Sjulian } 147093746Sjulian } 147193746Sjulian m_copydata(m_head, 0, m_head->m_pkthdr.len, mtod(m_new, caddr_t)); 147293746Sjulian m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len; 147393746Sjulian m_freem(m_head); 147493746Sjulian m_head = m_new; 147593746Sjulian f = &c->my_ptr->my_frag[0]; 147693746Sjulian f->my_status = 0; 147793746Sjulian f->my_data = vtophys(mtod(m_new, caddr_t)); 147893746Sjulian total_len = m_new->m_len; 147993746Sjulian f->my_ctl = MY_TXFD | MY_TXLD | MY_CRCEnable | MY_PADEnable; 148093746Sjulian f->my_ctl |= total_len << MY_PKTShift; /* pkt size */ 148193746Sjulian f->my_ctl |= total_len; /* buffer size */ 148294904Sjulian /* 89/12/29 add, for mtd891 *//* [ 89? ] */ 148393746Sjulian if (sc->my_info->my_did == MTD891ID) 148493746Sjulian f->my_ctl |= MY_ETIControl | MY_RetryTxLC; 148593746Sjulian c->my_mbuf = m_head; 148693746Sjulian c->my_lastdesc = 0; 148793746Sjulian MY_TXNEXT(c) = vtophys(&c->my_nextdesc->my_ptr->my_frag[0]); 148893746Sjulian MY_UNLOCK(sc); 148993746Sjulian return (0); 149093746Sjulian} 149193746Sjulian 149293746Sjulian/* 149393746Sjulian * Main transmit routine. To avoid having to do mbuf copies, we put pointers 149493746Sjulian * to the mbuf data regions directly in the transmit lists. We also save a 149593746Sjulian * copy of the pointers since the transmit list fragment pointers are 149693746Sjulian * physical addresses. 149793746Sjulian */ 149893746Sjulianstatic void 149993746Sjulianmy_start(struct ifnet * ifp) 150093746Sjulian{ 150193746Sjulian struct my_softc *sc; 150293746Sjulian struct mbuf *m_head = NULL; 150393746Sjulian struct my_chain *cur_tx = NULL, *start_tx; 150493746Sjulian 150593746Sjulian sc = ifp->if_softc; 150693746Sjulian MY_LOCK(sc); 150793746Sjulian if (sc->my_autoneg) { 150893746Sjulian sc->my_tx_pend = 1; 150993746Sjulian MY_UNLOCK(sc); 151093746Sjulian return; 151193746Sjulian } 151293746Sjulian /* 151393746Sjulian * Check for an available queue slot. If there are none, punt. 151493746Sjulian */ 151593746Sjulian if (sc->my_cdata.my_tx_free->my_mbuf != NULL) { 151693746Sjulian ifp->if_flags |= IFF_OACTIVE; 151793746Sjulian MY_UNLOCK(sc); 151893746Sjulian return; 151993746Sjulian } 152093746Sjulian start_tx = sc->my_cdata.my_tx_free; 152193746Sjulian while (sc->my_cdata.my_tx_free->my_mbuf == NULL) { 152293746Sjulian IF_DEQUEUE(&ifp->if_snd, m_head); 152393746Sjulian if (m_head == NULL) 152493746Sjulian break; 152593746Sjulian 152693746Sjulian /* Pick a descriptor off the free list. */ 152793746Sjulian cur_tx = sc->my_cdata.my_tx_free; 152893746Sjulian sc->my_cdata.my_tx_free = cur_tx->my_nextdesc; 152993746Sjulian 153093746Sjulian /* Pack the data into the descriptor. */ 153193746Sjulian my_encap(sc, cur_tx, m_head); 153293746Sjulian 153393746Sjulian if (cur_tx != start_tx) 153493746Sjulian MY_TXOWN(cur_tx) = MY_OWNByNIC; 153593746Sjulian#if NBPFILTER > 0 153693746Sjulian /* 153793746Sjulian * If there's a BPF listener, bounce a copy of this frame to 153893746Sjulian * him. 153993746Sjulian */ 1540106937Ssam BPF_MTAP(ifp, cur_tx->my_mbuf); 154193746Sjulian#endif 154293746Sjulian } 154393746Sjulian /* 154493746Sjulian * If there are no packets queued, bail. 154593746Sjulian */ 154693746Sjulian if (cur_tx == NULL) { 154793746Sjulian MY_UNLOCK(sc); 154893746Sjulian return; 154993746Sjulian } 155093746Sjulian /* 155193746Sjulian * Place the request for the upload interrupt in the last descriptor 155293746Sjulian * in the chain. This way, if we're chaining several packets at once, 155393746Sjulian * we'll only get an interupt once for the whole chain rather than 155493746Sjulian * once for each packet. 155593746Sjulian */ 155693746Sjulian MY_TXCTL(cur_tx) |= MY_TXIC; 155793746Sjulian cur_tx->my_ptr->my_frag[0].my_ctl |= MY_TXIC; 155893746Sjulian sc->my_cdata.my_tx_tail = cur_tx; 155993746Sjulian if (sc->my_cdata.my_tx_head == NULL) 156093746Sjulian sc->my_cdata.my_tx_head = start_tx; 156193746Sjulian MY_TXOWN(start_tx) = MY_OWNByNIC; 156293746Sjulian CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF); /* tx polling demand */ 156393746Sjulian 156493746Sjulian /* 156593746Sjulian * Set a timeout in case the chip goes out to lunch. 156693746Sjulian */ 156793746Sjulian ifp->if_timer = 5; 156893746Sjulian MY_UNLOCK(sc); 156993746Sjulian return; 157093746Sjulian} 157193746Sjulian 157293746Sjulianstatic void 157393746Sjulianmy_init(void *xsc) 157493746Sjulian{ 157593746Sjulian struct my_softc *sc = xsc; 157693746Sjulian struct ifnet *ifp = &sc->arpcom.ac_if; 157793746Sjulian int s; 157893746Sjulian u_int16_t phy_bmcr = 0; 157993746Sjulian 158093746Sjulian MY_LOCK(sc); 158193746Sjulian if (sc->my_autoneg) { 158293746Sjulian MY_UNLOCK(sc); 158393746Sjulian return; 158493746Sjulian } 158593746Sjulian s = splimp(); 158693746Sjulian if (sc->my_pinfo != NULL) 158793746Sjulian phy_bmcr = my_phy_readreg(sc, PHY_BMCR); 158893746Sjulian /* 158993746Sjulian * Cancel pending I/O and free all RX/TX buffers. 159093746Sjulian */ 159193746Sjulian my_stop(sc); 159293746Sjulian my_reset(sc); 159393746Sjulian 159493746Sjulian /* 159593746Sjulian * Set cache alignment and burst length. 159693746Sjulian */ 159794863Sjulian#if 0 /* 89/9/1 modify, */ 159894863Sjulian CSR_WRITE_4(sc, MY_BCR, MY_RPBLE512); 159994863Sjulian CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF); 160094863Sjulian#endif 160193746Sjulian CSR_WRITE_4(sc, MY_BCR, MY_PBL8); 160293746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF | MY_RBLEN | MY_RPBLE512); 160393746Sjulian /* 160493746Sjulian * 89/12/29 add, for mtd891, 160593746Sjulian */ 160693746Sjulian if (sc->my_info->my_did == MTD891ID) { 160793746Sjulian MY_SETBIT(sc, MY_BCR, MY_PROG); 160893746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_Enhanced); 160993746Sjulian } 161093746Sjulian my_setcfg(sc, phy_bmcr); 161193746Sjulian /* Init circular RX list. */ 161293746Sjulian if (my_list_rx_init(sc) == ENOBUFS) { 161393746Sjulian printf("my%d: init failed: no memory for rx buffers\n", 161493746Sjulian sc->my_unit); 161593746Sjulian my_stop(sc); 161693746Sjulian (void)splx(s); 161793746Sjulian MY_UNLOCK(sc); 161893746Sjulian return; 161993746Sjulian } 162093746Sjulian /* Init TX descriptors. */ 162193746Sjulian my_list_tx_init(sc); 162293746Sjulian 162393746Sjulian /* If we want promiscuous mode, set the allframes bit. */ 162493746Sjulian if (ifp->if_flags & IFF_PROMISC) 162593746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PROM); 162693746Sjulian else 162793746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PROM); 162893746Sjulian 162993746Sjulian /* 163093746Sjulian * Set capture broadcast bit to capture broadcast frames. 163193746Sjulian */ 163293746Sjulian if (ifp->if_flags & IFF_BROADCAST) 163393746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_AB); 163493746Sjulian else 163593746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_AB); 163693746Sjulian 163793746Sjulian /* 163893746Sjulian * Program the multicast filter, if necessary. 163993746Sjulian */ 164093746Sjulian my_setmulti(sc); 164193746Sjulian 164293746Sjulian /* 164393746Sjulian * Load the address of the RX list. 164493746Sjulian */ 164593746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_RE); 164693746Sjulian CSR_WRITE_4(sc, MY_RXLBA, vtophys(&sc->my_ldata->my_rx_list[0])); 164793746Sjulian 164893746Sjulian /* 164993746Sjulian * Enable interrupts. 165093746Sjulian */ 165193746Sjulian CSR_WRITE_4(sc, MY_IMR, MY_INTRS); 165293746Sjulian CSR_WRITE_4(sc, MY_ISR, 0xFFFFFFFF); 165393746Sjulian 165493746Sjulian /* Enable receiver and transmitter. */ 165593746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_RE); 165693746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_TE); 165793746Sjulian CSR_WRITE_4(sc, MY_TXLBA, vtophys(&sc->my_ldata->my_tx_list[0])); 165893746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_TE); 165993746Sjulian 166093746Sjulian /* Restore state of BMCR */ 166193746Sjulian if (sc->my_pinfo != NULL) 166293746Sjulian my_phy_writereg(sc, PHY_BMCR, phy_bmcr); 166393746Sjulian ifp->if_flags |= IFF_RUNNING; 166493746Sjulian ifp->if_flags &= ~IFF_OACTIVE; 166593746Sjulian (void)splx(s); 166693746Sjulian MY_UNLOCK(sc); 166793746Sjulian return; 166893746Sjulian} 166993746Sjulian 167093746Sjulian/* 167193746Sjulian * Set media options. 167293746Sjulian */ 167393746Sjulian 167493746Sjulianstatic int 167593746Sjulianmy_ifmedia_upd(struct ifnet * ifp) 167693746Sjulian{ 167793746Sjulian struct my_softc *sc; 167893746Sjulian struct ifmedia *ifm; 167993746Sjulian 168093746Sjulian sc = ifp->if_softc; 168193746Sjulian MY_LOCK(sc); 168293746Sjulian ifm = &sc->ifmedia; 168393746Sjulian if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) { 168493746Sjulian MY_UNLOCK(sc); 168593746Sjulian return (EINVAL); 168693746Sjulian } 168793746Sjulian if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) 168893746Sjulian my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1); 168993746Sjulian else 169093746Sjulian my_setmode_mii(sc, ifm->ifm_media); 169193746Sjulian MY_UNLOCK(sc); 169293746Sjulian return (0); 169393746Sjulian} 169493746Sjulian 169593746Sjulian/* 169693746Sjulian * Report current media status. 169793746Sjulian */ 169893746Sjulian 169993746Sjulianstatic void 170093746Sjulianmy_ifmedia_sts(struct ifnet * ifp, struct ifmediareq * ifmr) 170193746Sjulian{ 170293746Sjulian struct my_softc *sc; 170393746Sjulian u_int16_t advert = 0, ability = 0; 170493746Sjulian 170593746Sjulian sc = ifp->if_softc; 170693746Sjulian MY_LOCK(sc); 170793746Sjulian ifmr->ifm_active = IFM_ETHER; 170893746Sjulian if (!(my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_AUTONEGENBL)) { 170994863Sjulian#if 0 /* this version did not support 1000M, */ 171094863Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_1000) 171194863Sjulian ifmr->ifm_active = IFM_ETHER | IFM_1000TX; 171294863Sjulian#endif 171393746Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_SPEEDSEL) 171493746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX; 171593746Sjulian else 171693746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T; 171793746Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX) 171893746Sjulian ifmr->ifm_active |= IFM_FDX; 171993746Sjulian else 172093746Sjulian ifmr->ifm_active |= IFM_HDX; 172193746Sjulian 172293746Sjulian MY_UNLOCK(sc); 172393746Sjulian return; 172493746Sjulian } 172593746Sjulian ability = my_phy_readreg(sc, PHY_LPAR); 172693746Sjulian advert = my_phy_readreg(sc, PHY_ANAR); 172793746Sjulian 172894863Sjulian#if 0 /* this version did not support 1000M, */ 172993746Sjulian if (sc->my_pinfo->my_vid = MarvellPHYID0) { 173093746Sjulian ability2 = my_phy_readreg(sc, PHY_1000SR); 173193746Sjulian if (ability2 & PHY_1000SR_1000BTXFULL) { 173293746Sjulian advert = 0; 173393746Sjulian ability = 0; 173495673Sphk ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_FDX; 173593746Sjulian } else if (ability & PHY_1000SR_1000BTXHALF) { 173693746Sjulian advert = 0; 173793746Sjulian ability = 0; 173895673Sphk ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_HDX; 173993746Sjulian } 174093746Sjulian } 174193746Sjulian#endif 174293746Sjulian if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) 174393746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_T4; 174493746Sjulian else if (advert & PHY_ANAR_100BTXFULL && ability & PHY_ANAR_100BTXFULL) 174593746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_FDX; 174693746Sjulian else if (advert & PHY_ANAR_100BTXHALF && ability & PHY_ANAR_100BTXHALF) 174793746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_HDX; 174893746Sjulian else if (advert & PHY_ANAR_10BTFULL && ability & PHY_ANAR_10BTFULL) 174993746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_FDX; 175093746Sjulian else if (advert & PHY_ANAR_10BTHALF && ability & PHY_ANAR_10BTHALF) 175193746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_HDX; 175293746Sjulian MY_UNLOCK(sc); 175393746Sjulian return; 175493746Sjulian} 175593746Sjulian 175693746Sjulianstatic int 175793746Sjulianmy_ioctl(struct ifnet * ifp, u_long command, caddr_t data) 175893746Sjulian{ 175993746Sjulian struct my_softc *sc = ifp->if_softc; 176093746Sjulian struct ifreq *ifr = (struct ifreq *) data; 176193746Sjulian int s, error = 0; 176293746Sjulian 176393746Sjulian s = splimp(); 176493746Sjulian MY_LOCK(sc); 176593746Sjulian switch (command) { 176693746Sjulian case SIOCSIFFLAGS: 176793746Sjulian if (ifp->if_flags & IFF_UP) 176893746Sjulian my_init(sc); 176993746Sjulian else if (ifp->if_flags & IFF_RUNNING) 177093746Sjulian my_stop(sc); 177193746Sjulian error = 0; 177293746Sjulian break; 177393746Sjulian case SIOCADDMULTI: 177493746Sjulian case SIOCDELMULTI: 177593746Sjulian my_setmulti(sc); 177693746Sjulian error = 0; 177793746Sjulian break; 177893746Sjulian case SIOCGIFMEDIA: 177993746Sjulian case SIOCSIFMEDIA: 178093746Sjulian error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command); 178193746Sjulian break; 178293746Sjulian default: 1783106937Ssam error = ether_ioctl(ifp, command, data); 178493746Sjulian break; 178593746Sjulian } 178693746Sjulian MY_UNLOCK(sc); 178793746Sjulian (void)splx(s); 178893746Sjulian return (error); 178993746Sjulian} 179093746Sjulian 179193746Sjulianstatic void 179293746Sjulianmy_watchdog(struct ifnet * ifp) 179393746Sjulian{ 179493746Sjulian struct my_softc *sc; 179593746Sjulian 179693746Sjulian sc = ifp->if_softc; 179793746Sjulian MY_LOCK(sc); 179893746Sjulian if (sc->my_autoneg) { 179993746Sjulian my_autoneg_mii(sc, MY_FLAG_DELAYTIMEO, 1); 180093746Sjulian MY_UNLOCK(sc); 180193746Sjulian return; 180293746Sjulian } 180393746Sjulian ifp->if_oerrors++; 180493746Sjulian printf("my%d: watchdog timeout\n", sc->my_unit); 180593746Sjulian if (!(my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT)) 180693746Sjulian printf("my%d: no carrier - transceiver cable problem?\n", 180793746Sjulian sc->my_unit); 180893746Sjulian my_stop(sc); 180993746Sjulian my_reset(sc); 181093746Sjulian my_init(sc); 181193746Sjulian if (ifp->if_snd.ifq_head != NULL) 181293746Sjulian my_start(ifp); 181393746Sjulian MY_LOCK(sc); 181493746Sjulian return; 181593746Sjulian} 181693746Sjulian 181793746Sjulian 181893746Sjulian/* 181993746Sjulian * Stop the adapter and free any mbufs allocated to the RX and TX lists. 182093746Sjulian */ 182193746Sjulianstatic void 182293746Sjulianmy_stop(struct my_softc * sc) 182393746Sjulian{ 182493746Sjulian register int i; 182593746Sjulian struct ifnet *ifp; 182693746Sjulian 182793746Sjulian MY_LOCK(sc); 182893746Sjulian ifp = &sc->arpcom.ac_if; 182993746Sjulian ifp->if_timer = 0; 183093746Sjulian 183193746Sjulian MY_CLRBIT(sc, MY_TCRRCR, (MY_RE | MY_TE)); 183293746Sjulian CSR_WRITE_4(sc, MY_IMR, 0x00000000); 183393746Sjulian CSR_WRITE_4(sc, MY_TXLBA, 0x00000000); 183493746Sjulian CSR_WRITE_4(sc, MY_RXLBA, 0x00000000); 183593746Sjulian 183693746Sjulian /* 183793746Sjulian * Free data in the RX lists. 183893746Sjulian */ 183993746Sjulian for (i = 0; i < MY_RX_LIST_CNT; i++) { 184093746Sjulian if (sc->my_cdata.my_rx_chain[i].my_mbuf != NULL) { 184193746Sjulian m_freem(sc->my_cdata.my_rx_chain[i].my_mbuf); 184293746Sjulian sc->my_cdata.my_rx_chain[i].my_mbuf = NULL; 184393746Sjulian } 184493746Sjulian } 184593746Sjulian bzero((char *)&sc->my_ldata->my_rx_list, 184693746Sjulian sizeof(sc->my_ldata->my_rx_list)); 184793746Sjulian /* 184893746Sjulian * Free the TX list buffers. 184993746Sjulian */ 185093746Sjulian for (i = 0; i < MY_TX_LIST_CNT; i++) { 185193746Sjulian if (sc->my_cdata.my_tx_chain[i].my_mbuf != NULL) { 185293746Sjulian m_freem(sc->my_cdata.my_tx_chain[i].my_mbuf); 185393746Sjulian sc->my_cdata.my_tx_chain[i].my_mbuf = NULL; 185493746Sjulian } 185593746Sjulian } 185693746Sjulian bzero((char *)&sc->my_ldata->my_tx_list, 185793746Sjulian sizeof(sc->my_ldata->my_tx_list)); 185893746Sjulian ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 185993746Sjulian MY_UNLOCK(sc); 186093746Sjulian return; 186193746Sjulian} 186293746Sjulian 186393746Sjulian/* 186493746Sjulian * Stop all chip I/O so that the kernel's probe routines don't get confused 186593746Sjulian * by errant DMAs when rebooting. 186693746Sjulian */ 186793746Sjulianstatic void 186893746Sjulianmy_shutdown(device_t dev) 186993746Sjulian{ 187093746Sjulian struct my_softc *sc; 187193746Sjulian 187293746Sjulian sc = device_get_softc(dev); 187393746Sjulian my_stop(sc); 187493746Sjulian return; 187593746Sjulian} 1876