if_my.c revision 119418
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 119418 2003-08-24 17:55:58Z obrien $"); 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); 14593746Sjulianstatic u_int8_t my_calchash(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 31693746Sjulianstatic u_int8_t 31793746Sjulianmy_calchash(caddr_t addr) 31893746Sjulian{ 31993746Sjulian u_int32_t crc, carry; 32093746Sjulian int i, j; 32193746Sjulian u_int8_t c; 32293746Sjulian 32393746Sjulian /* Compute CRC for the address value. */ 32493746Sjulian crc = 0xFFFFFFFF; /* initial value */ 32593746Sjulian 32693746Sjulian for (i = 0; i < 6; i++) { 32793746Sjulian c = *(addr + i); 32893746Sjulian for (j = 0; j < 8; j++) { 32993746Sjulian carry = ((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01); 33093746Sjulian crc <<= 1; 33193746Sjulian c >>= 1; 33293746Sjulian if (carry) 33393746Sjulian crc = (crc ^ 0x04c11db6) | carry; 33493746Sjulian } 33593746Sjulian } 33693746Sjulian 33793746Sjulian /* 33893746Sjulian * return the filter bit position Note: I arrived at the following 33993746Sjulian * nonsense through experimentation. It's not the usual way to 34093746Sjulian * generate the bit position but it's the only thing I could come up 34193746Sjulian * with that works. 34293746Sjulian */ 34393746Sjulian return (~(crc >> 26) & 0x0000003F); 34493746Sjulian} 34593746Sjulian 34693746Sjulian 34793746Sjulian/* 34893746Sjulian * Program the 64-bit multicast hash filter. 34993746Sjulian */ 35093746Sjulianstatic void 35193746Sjulianmy_setmulti(struct my_softc * sc) 35293746Sjulian{ 35393746Sjulian struct ifnet *ifp; 35493746Sjulian int h = 0; 35593746Sjulian u_int32_t hashes[2] = {0, 0}; 35693746Sjulian struct ifmultiaddr *ifma; 35793746Sjulian u_int32_t rxfilt; 35893746Sjulian int mcnt = 0; 35993746Sjulian 36093746Sjulian MY_LOCK(sc); 36193746Sjulian 36293746Sjulian ifp = &sc->arpcom.ac_if; 36393746Sjulian 36493746Sjulian rxfilt = CSR_READ_4(sc, MY_TCRRCR); 36593746Sjulian 36693746Sjulian if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 36793746Sjulian rxfilt |= MY_AM; 36893746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, rxfilt); 36993746Sjulian CSR_WRITE_4(sc, MY_MAR0, 0xFFFFFFFF); 37093746Sjulian CSR_WRITE_4(sc, MY_MAR1, 0xFFFFFFFF); 37193746Sjulian 37293746Sjulian MY_UNLOCK(sc); 37393746Sjulian 37493746Sjulian return; 37593746Sjulian } 37693746Sjulian /* first, zot all the existing hash bits */ 37793746Sjulian CSR_WRITE_4(sc, MY_MAR0, 0); 37893746Sjulian CSR_WRITE_4(sc, MY_MAR1, 0); 37993746Sjulian 38093746Sjulian /* now program new ones */ 38193746Sjulian TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 38293746Sjulian if (ifma->ifma_addr->sa_family != AF_LINK) 38393746Sjulian continue; 38493746Sjulian h = my_calchash(LLADDR((struct sockaddr_dl *) ifma->ifma_addr)); 38593746Sjulian if (h < 32) 38693746Sjulian hashes[0] |= (1 << h); 38793746Sjulian else 38893746Sjulian hashes[1] |= (1 << (h - 32)); 38993746Sjulian mcnt++; 39093746Sjulian } 39193746Sjulian 39293746Sjulian if (mcnt) 39393746Sjulian rxfilt |= MY_AM; 39493746Sjulian else 39593746Sjulian rxfilt &= ~MY_AM; 39693746Sjulian CSR_WRITE_4(sc, MY_MAR0, hashes[0]); 39793746Sjulian CSR_WRITE_4(sc, MY_MAR1, hashes[1]); 39893746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, rxfilt); 39993746Sjulian MY_UNLOCK(sc); 40093746Sjulian return; 40193746Sjulian} 40293746Sjulian 40393746Sjulian/* 40493746Sjulian * Initiate an autonegotiation session. 40593746Sjulian */ 40693746Sjulianstatic void 40793746Sjulianmy_autoneg_xmit(struct my_softc * sc) 40893746Sjulian{ 40993746Sjulian u_int16_t phy_sts = 0; 41093746Sjulian 41193746Sjulian MY_LOCK(sc); 41293746Sjulian 41393746Sjulian my_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET); 41493746Sjulian DELAY(500); 41593746Sjulian while (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_RESET); 41693746Sjulian 41793746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMCR); 41893746Sjulian phy_sts |= PHY_BMCR_AUTONEGENBL | PHY_BMCR_AUTONEGRSTR; 41993746Sjulian my_phy_writereg(sc, PHY_BMCR, phy_sts); 42093746Sjulian 42193746Sjulian MY_UNLOCK(sc); 42293746Sjulian return; 42393746Sjulian} 42493746Sjulian 42593746Sjulian 42693746Sjulian/* 42793746Sjulian * Invoke autonegotiation on a PHY. 42893746Sjulian */ 42993746Sjulianstatic void 43093746Sjulianmy_autoneg_mii(struct my_softc * sc, int flag, int verbose) 43193746Sjulian{ 43293746Sjulian u_int16_t phy_sts = 0, media, advert, ability; 43393746Sjulian u_int16_t ability2 = 0; 43493746Sjulian struct ifnet *ifp; 43593746Sjulian struct ifmedia *ifm; 43693746Sjulian 43793746Sjulian MY_LOCK(sc); 43893746Sjulian 43993746Sjulian ifm = &sc->ifmedia; 44093746Sjulian ifp = &sc->arpcom.ac_if; 44193746Sjulian 44293746Sjulian ifm->ifm_media = IFM_ETHER | IFM_AUTO; 44393746Sjulian 44493746Sjulian#ifndef FORCE_AUTONEG_TFOUR 44593746Sjulian /* 44693746Sjulian * First, see if autoneg is supported. If not, there's no point in 44793746Sjulian * continuing. 44893746Sjulian */ 44993746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 45093746Sjulian if (!(phy_sts & PHY_BMSR_CANAUTONEG)) { 45193746Sjulian if (verbose) 45293746Sjulian printf("my%d: autonegotiation not supported\n", 45393746Sjulian sc->my_unit); 45493746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 45593746Sjulian MY_UNLOCK(sc); 45693746Sjulian return; 45793746Sjulian } 45893746Sjulian#endif 45993746Sjulian switch (flag) { 46093746Sjulian case MY_FLAG_FORCEDELAY: 46193746Sjulian /* 46293746Sjulian * XXX Never use this option anywhere but in the probe 46393746Sjulian * routine: making the kernel stop dead in its tracks for 46493746Sjulian * three whole seconds after we've gone multi-user is really 46593746Sjulian * bad manners. 46693746Sjulian */ 46793746Sjulian my_autoneg_xmit(sc); 46893746Sjulian DELAY(5000000); 46993746Sjulian break; 47093746Sjulian case MY_FLAG_SCHEDDELAY: 47193746Sjulian /* 47293746Sjulian * Wait for the transmitter to go idle before starting an 47393746Sjulian * autoneg session, otherwise my_start() may clobber our 47493746Sjulian * timeout, and we don't want to allow transmission during an 47593746Sjulian * autoneg session since that can screw it up. 47693746Sjulian */ 47793746Sjulian if (sc->my_cdata.my_tx_head != NULL) { 47893746Sjulian sc->my_want_auto = 1; 47993746Sjulian MY_UNLOCK(sc); 48093746Sjulian return; 48193746Sjulian } 48293746Sjulian my_autoneg_xmit(sc); 48393746Sjulian ifp->if_timer = 5; 48493746Sjulian sc->my_autoneg = 1; 48593746Sjulian sc->my_want_auto = 0; 48693746Sjulian MY_UNLOCK(sc); 48793746Sjulian return; 48893746Sjulian case MY_FLAG_DELAYTIMEO: 48993746Sjulian ifp->if_timer = 0; 49093746Sjulian sc->my_autoneg = 0; 49193746Sjulian break; 49293746Sjulian default: 49393746Sjulian printf("my%d: invalid autoneg flag: %d\n", sc->my_unit, flag); 49493746Sjulian MY_UNLOCK(sc); 49593746Sjulian return; 49693746Sjulian } 49793746Sjulian 49893746Sjulian if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) { 49993746Sjulian if (verbose) 50093746Sjulian printf("my%d: autoneg complete, ", sc->my_unit); 50193746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 50293746Sjulian } else { 50393746Sjulian if (verbose) 50493746Sjulian printf("my%d: autoneg not complete, ", sc->my_unit); 50593746Sjulian } 50693746Sjulian 50793746Sjulian media = my_phy_readreg(sc, PHY_BMCR); 50893746Sjulian 50993746Sjulian /* Link is good. Report modes and set duplex mode. */ 51093746Sjulian if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT) { 51193746Sjulian if (verbose) 51293746Sjulian printf("my%d: link status good. ", sc->my_unit); 51393746Sjulian advert = my_phy_readreg(sc, PHY_ANAR); 51493746Sjulian ability = my_phy_readreg(sc, PHY_LPAR); 51593746Sjulian if ((sc->my_pinfo->my_vid == MarvellPHYID0) || 51693746Sjulian (sc->my_pinfo->my_vid == LevelOnePHYID0)) { 51793746Sjulian ability2 = my_phy_readreg(sc, PHY_1000SR); 51893746Sjulian if (ability2 & PHY_1000SR_1000BTXFULL) { 51993746Sjulian advert = 0; 52093746Sjulian ability = 0; 52193746Sjulian /* 52293746Sjulian * this version did not support 1000M, 52393746Sjulian * ifm->ifm_media = 52495673Sphk * IFM_ETHER|IFM_1000_T|IFM_FDX; 52593746Sjulian */ 52693746Sjulian ifm->ifm_media = 52793746Sjulian IFM_ETHER | IFM_100_TX | IFM_FDX; 52893746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 52993746Sjulian media |= PHY_BMCR_1000; 53093746Sjulian media |= PHY_BMCR_DUPLEX; 53193746Sjulian printf("(full-duplex, 1000Mbps)\n"); 53293746Sjulian } else if (ability2 & PHY_1000SR_1000BTXHALF) { 53393746Sjulian advert = 0; 53493746Sjulian ability = 0; 53593746Sjulian /* 53693746Sjulian * this version did not support 1000M, 53795673Sphk * ifm->ifm_media = IFM_ETHER|IFM_1000_T; 53893746Sjulian */ 53993746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX; 54093746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 54193746Sjulian media &= ~PHY_BMCR_DUPLEX; 54293746Sjulian media |= PHY_BMCR_1000; 54393746Sjulian printf("(half-duplex, 1000Mbps)\n"); 54493746Sjulian } 54593746Sjulian } 54693746Sjulian if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) { 54793746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_T4; 54893746Sjulian media |= PHY_BMCR_SPEEDSEL; 54993746Sjulian media &= ~PHY_BMCR_DUPLEX; 55093746Sjulian printf("(100baseT4)\n"); 55193746Sjulian } else if (advert & PHY_ANAR_100BTXFULL && 55293746Sjulian ability & PHY_ANAR_100BTXFULL) { 55393746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; 55493746Sjulian media |= PHY_BMCR_SPEEDSEL; 55593746Sjulian media |= PHY_BMCR_DUPLEX; 55693746Sjulian printf("(full-duplex, 100Mbps)\n"); 55793746Sjulian } else if (advert & PHY_ANAR_100BTXHALF && 55893746Sjulian ability & PHY_ANAR_100BTXHALF) { 55993746Sjulian ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; 56093746Sjulian media |= PHY_BMCR_SPEEDSEL; 56193746Sjulian media &= ~PHY_BMCR_DUPLEX; 56293746Sjulian printf("(half-duplex, 100Mbps)\n"); 56393746Sjulian } else if (advert & PHY_ANAR_10BTFULL && 56493746Sjulian ability & PHY_ANAR_10BTFULL) { 56593746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; 56693746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 56793746Sjulian media |= PHY_BMCR_DUPLEX; 56893746Sjulian printf("(full-duplex, 10Mbps)\n"); 56993746Sjulian } else if (advert) { 57093746Sjulian ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 57193746Sjulian media &= ~PHY_BMCR_SPEEDSEL; 57293746Sjulian media &= ~PHY_BMCR_DUPLEX; 57393746Sjulian printf("(half-duplex, 10Mbps)\n"); 57493746Sjulian } 57593746Sjulian media &= ~PHY_BMCR_AUTONEGENBL; 57693746Sjulian 57793746Sjulian /* Set ASIC's duplex mode to match the PHY. */ 57893746Sjulian my_phy_writereg(sc, PHY_BMCR, media); 57993746Sjulian my_setcfg(sc, media); 58093746Sjulian } else { 58193746Sjulian if (verbose) 58293746Sjulian printf("my%d: no carrier\n", sc->my_unit); 58393746Sjulian } 58493746Sjulian 58593746Sjulian my_init(sc); 58693746Sjulian if (sc->my_tx_pend) { 58793746Sjulian sc->my_autoneg = 0; 58893746Sjulian sc->my_tx_pend = 0; 58993746Sjulian my_start(ifp); 59093746Sjulian } 59193746Sjulian MY_UNLOCK(sc); 59293746Sjulian return; 59393746Sjulian} 59493746Sjulian 59593746Sjulian/* 59693746Sjulian * To get PHY ability. 59793746Sjulian */ 59893746Sjulianstatic void 59993746Sjulianmy_getmode_mii(struct my_softc * sc) 60093746Sjulian{ 60193746Sjulian u_int16_t bmsr; 60293746Sjulian struct ifnet *ifp; 60393746Sjulian 60493746Sjulian MY_LOCK(sc); 60593746Sjulian ifp = &sc->arpcom.ac_if; 60693746Sjulian bmsr = my_phy_readreg(sc, PHY_BMSR); 60793746Sjulian if (bootverbose) 60893746Sjulian printf("my%d: PHY status word: %x\n", sc->my_unit, bmsr); 60993746Sjulian 61093746Sjulian /* fallback */ 61193746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 61293746Sjulian 61393746Sjulian if (bmsr & PHY_BMSR_10BTHALF) { 61493746Sjulian if (bootverbose) 61593746Sjulian printf("my%d: 10Mbps half-duplex mode supported\n", 61693746Sjulian sc->my_unit); 61793746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX, 61893746Sjulian 0, NULL); 61993746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T, 0, NULL); 62093746Sjulian } 62193746Sjulian if (bmsr & PHY_BMSR_10BTFULL) { 62293746Sjulian if (bootverbose) 62393746Sjulian printf("my%d: 10Mbps full-duplex mode supported\n", 62493746Sjulian sc->my_unit); 62593746Sjulian 62693746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX, 62793746Sjulian 0, NULL); 62893746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; 62993746Sjulian } 63093746Sjulian if (bmsr & PHY_BMSR_100BTXHALF) { 63193746Sjulian if (bootverbose) 63293746Sjulian printf("my%d: 100Mbps half-duplex mode supported\n", 63393746Sjulian sc->my_unit); 63493746Sjulian ifp->if_baudrate = 100000000; 63593746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL); 63693746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX, 63793746Sjulian 0, NULL); 63893746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; 63993746Sjulian } 64093746Sjulian if (bmsr & PHY_BMSR_100BTXFULL) { 64193746Sjulian if (bootverbose) 64293746Sjulian printf("my%d: 100Mbps full-duplex mode supported\n", 64393746Sjulian sc->my_unit); 64493746Sjulian ifp->if_baudrate = 100000000; 64593746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX, 64693746Sjulian 0, NULL); 64793746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; 64893746Sjulian } 64993746Sjulian /* Some also support 100BaseT4. */ 65093746Sjulian if (bmsr & PHY_BMSR_100BT4) { 65193746Sjulian if (bootverbose) 65293746Sjulian printf("my%d: 100baseT4 mode supported\n", sc->my_unit); 65393746Sjulian ifp->if_baudrate = 100000000; 65493746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_T4, 0, NULL); 65593746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_T4; 65693746Sjulian#ifdef FORCE_AUTONEG_TFOUR 65793746Sjulian if (bootverbose) 65893746Sjulian printf("my%d: forcing on autoneg support for BT4\n", 65993746Sjulian sc->my_unit); 66093746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0 NULL): 66193746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; 66293746Sjulian#endif 66393746Sjulian } 66494863Sjulian#if 0 /* this version did not support 1000M, */ 66593746Sjulian if (sc->my_pinfo->my_vid == MarvellPHYID0) { 66693746Sjulian if (bootverbose) 66793746Sjulian printf("my%d: 1000Mbps half-duplex mode supported\n", 66893746Sjulian sc->my_unit); 66993746Sjulian 67093746Sjulian ifp->if_baudrate = 1000000000; 67195673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T, 0, NULL); 67295673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_HDX, 67393746Sjulian 0, NULL); 67493746Sjulian if (bootverbose) 67593746Sjulian printf("my%d: 1000Mbps full-duplex mode supported\n", 67693746Sjulian sc->my_unit); 67793746Sjulian ifp->if_baudrate = 1000000000; 67895673Sphk ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_FDX, 67993746Sjulian 0, NULL); 68095673Sphk sc->ifmedia.ifm_media = IFM_ETHER | IFM_1000_T | IFM_FDX; 68193746Sjulian } 68293746Sjulian#endif 68393746Sjulian if (bmsr & PHY_BMSR_CANAUTONEG) { 68493746Sjulian if (bootverbose) 68593746Sjulian printf("my%d: autoneg supported\n", sc->my_unit); 68693746Sjulian ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); 68793746Sjulian sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; 68893746Sjulian } 68993746Sjulian MY_UNLOCK(sc); 69093746Sjulian return; 69193746Sjulian} 69293746Sjulian 69393746Sjulian/* 69493746Sjulian * Set speed and duplex mode. 69593746Sjulian */ 69693746Sjulianstatic void 69793746Sjulianmy_setmode_mii(struct my_softc * sc, int media) 69893746Sjulian{ 69993746Sjulian u_int16_t bmcr; 70093746Sjulian struct ifnet *ifp; 70193746Sjulian 70293746Sjulian MY_LOCK(sc); 70393746Sjulian ifp = &sc->arpcom.ac_if; 70493746Sjulian /* 70593746Sjulian * If an autoneg session is in progress, stop it. 70693746Sjulian */ 70793746Sjulian if (sc->my_autoneg) { 70893746Sjulian printf("my%d: canceling autoneg session\n", sc->my_unit); 70993746Sjulian ifp->if_timer = sc->my_autoneg = sc->my_want_auto = 0; 71093746Sjulian bmcr = my_phy_readreg(sc, PHY_BMCR); 71193746Sjulian bmcr &= ~PHY_BMCR_AUTONEGENBL; 71293746Sjulian my_phy_writereg(sc, PHY_BMCR, bmcr); 71393746Sjulian } 71493746Sjulian printf("my%d: selecting MII, ", sc->my_unit); 71593746Sjulian bmcr = my_phy_readreg(sc, PHY_BMCR); 71693746Sjulian bmcr &= ~(PHY_BMCR_AUTONEGENBL | PHY_BMCR_SPEEDSEL | PHY_BMCR_1000 | 71793746Sjulian PHY_BMCR_DUPLEX | PHY_BMCR_LOOPBK); 71894863Sjulian 71994863Sjulian#if 0 /* this version did not support 1000M, */ 72095673Sphk if (IFM_SUBTYPE(media) == IFM_1000_T) { 72193746Sjulian printf("1000Mbps/T4, half-duplex\n"); 72293746Sjulian bmcr &= ~PHY_BMCR_SPEEDSEL; 72393746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 72493746Sjulian bmcr |= PHY_BMCR_1000; 72593746Sjulian } 72693746Sjulian#endif 72793746Sjulian if (IFM_SUBTYPE(media) == IFM_100_T4) { 72893746Sjulian printf("100Mbps/T4, half-duplex\n"); 72993746Sjulian bmcr |= PHY_BMCR_SPEEDSEL; 73093746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 73193746Sjulian } 73293746Sjulian if (IFM_SUBTYPE(media) == IFM_100_TX) { 73393746Sjulian printf("100Mbps, "); 73493746Sjulian bmcr |= PHY_BMCR_SPEEDSEL; 73593746Sjulian } 73693746Sjulian if (IFM_SUBTYPE(media) == IFM_10_T) { 73793746Sjulian printf("10Mbps, "); 73893746Sjulian bmcr &= ~PHY_BMCR_SPEEDSEL; 73993746Sjulian } 74093746Sjulian if ((media & IFM_GMASK) == IFM_FDX) { 74193746Sjulian printf("full duplex\n"); 74293746Sjulian bmcr |= PHY_BMCR_DUPLEX; 74393746Sjulian } else { 74493746Sjulian printf("half duplex\n"); 74593746Sjulian bmcr &= ~PHY_BMCR_DUPLEX; 74693746Sjulian } 74793746Sjulian my_phy_writereg(sc, PHY_BMCR, bmcr); 74893746Sjulian my_setcfg(sc, bmcr); 74993746Sjulian MY_UNLOCK(sc); 75093746Sjulian return; 75193746Sjulian} 75293746Sjulian 75393746Sjulian/* 75493746Sjulian * The Myson manual states that in order to fiddle with the 'full-duplex' and 75593746Sjulian * '100Mbps' bits in the netconfig register, we first have to put the 75693746Sjulian * transmit and/or receive logic in the idle state. 75793746Sjulian */ 75893746Sjulianstatic void 75993746Sjulianmy_setcfg(struct my_softc * sc, int bmcr) 76093746Sjulian{ 76193746Sjulian int i, restart = 0; 76293746Sjulian 76393746Sjulian MY_LOCK(sc); 76493746Sjulian if (CSR_READ_4(sc, MY_TCRRCR) & (MY_TE | MY_RE)) { 76593746Sjulian restart = 1; 76693746Sjulian MY_CLRBIT(sc, MY_TCRRCR, (MY_TE | MY_RE)); 76793746Sjulian for (i = 0; i < MY_TIMEOUT; i++) { 76893746Sjulian DELAY(10); 76993746Sjulian if (!(CSR_READ_4(sc, MY_TCRRCR) & 77093746Sjulian (MY_TXRUN | MY_RXRUN))) 77193746Sjulian break; 77293746Sjulian } 77393746Sjulian if (i == MY_TIMEOUT) 77493746Sjulian printf("my%d: failed to force tx and rx to idle \n", 77593746Sjulian sc->my_unit); 77693746Sjulian } 77793746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PS1000); 77893746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PS10); 77993746Sjulian if (bmcr & PHY_BMCR_1000) 78093746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PS1000); 78193746Sjulian else if (!(bmcr & PHY_BMCR_SPEEDSEL)) 78293746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PS10); 78393746Sjulian if (bmcr & PHY_BMCR_DUPLEX) 78493746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_FD); 78593746Sjulian else 78693746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_FD); 78793746Sjulian if (restart) 78893746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_TE | MY_RE); 78993746Sjulian MY_UNLOCK(sc); 79093746Sjulian return; 79193746Sjulian} 79293746Sjulian 79393746Sjulianstatic void 79493746Sjulianmy_reset(struct my_softc * sc) 79593746Sjulian{ 79693746Sjulian register int i; 79793746Sjulian 79893746Sjulian MY_LOCK(sc); 79993746Sjulian MY_SETBIT(sc, MY_BCR, MY_SWR); 80093746Sjulian for (i = 0; i < MY_TIMEOUT; i++) { 80193746Sjulian DELAY(10); 80293746Sjulian if (!(CSR_READ_4(sc, MY_BCR) & MY_SWR)) 80393746Sjulian break; 80493746Sjulian } 80593746Sjulian if (i == MY_TIMEOUT) 80693746Sjulian printf("m0x%d: reset never completed!\n", sc->my_unit); 80793746Sjulian 80893746Sjulian /* Wait a little while for the chip to get its brains in order. */ 80993746Sjulian DELAY(1000); 81093746Sjulian MY_UNLOCK(sc); 81193746Sjulian return; 81293746Sjulian} 81393746Sjulian 81493746Sjulian/* 81593746Sjulian * Probe for a Myson chip. Check the PCI vendor and device IDs against our 81693746Sjulian * list and return a device name if we find a match. 81793746Sjulian */ 81893746Sjulianstatic int 81993746Sjulianmy_probe(device_t dev) 82093746Sjulian{ 82193746Sjulian struct my_type *t; 82293746Sjulian 82393746Sjulian t = my_devs; 82493746Sjulian while (t->my_name != NULL) { 82593746Sjulian if ((pci_get_vendor(dev) == t->my_vid) && 82693746Sjulian (pci_get_device(dev) == t->my_did)) { 82793746Sjulian device_set_desc(dev, t->my_name); 82893746Sjulian my_info_tmp = t; 82993746Sjulian return (0); 83093746Sjulian } 83193746Sjulian t++; 83293746Sjulian } 83393746Sjulian return (ENXIO); 83493746Sjulian} 83593746Sjulian 83693746Sjulian/* 83793746Sjulian * Attach the interface. Allocate softc structures, do ifmedia setup and 83893746Sjulian * ethernet/BPF attach. 83993746Sjulian */ 84093746Sjulianstatic int 84193746Sjulianmy_attach(device_t dev) 84293746Sjulian{ 84393746Sjulian int s, i; 84493746Sjulian u_char eaddr[ETHER_ADDR_LEN]; 84593746Sjulian u_int32_t command, iobase; 84693746Sjulian struct my_softc *sc; 84793746Sjulian struct ifnet *ifp; 84893746Sjulian int media = IFM_ETHER | IFM_100_TX | IFM_FDX; 84993746Sjulian unsigned int round; 85093746Sjulian caddr_t roundptr; 85193746Sjulian struct my_type *p; 85293746Sjulian u_int16_t phy_vid, phy_did, phy_sts = 0; 85393746Sjulian int rid, unit, error = 0; 85493746Sjulian 85593746Sjulian s = splimp(); 85693746Sjulian sc = device_get_softc(dev); 85793746Sjulian unit = device_get_unit(dev); 85893746Sjulian if (sc == NULL) { 85993746Sjulian printf("my%d: no memory for softc struct!\n", unit); 86093746Sjulian error = ENXIO; 86193746Sjulian goto fail; 86293746Sjulian 86393746Sjulian } 86493746Sjulian bzero(sc, sizeof(struct my_softc)); 86595803Sjulian mtx_init(&sc->my_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 86695803Sjulian MTX_DEF | MTX_RECURSE); 86793746Sjulian MY_LOCK(sc); 86893746Sjulian 86993746Sjulian /* 87093746Sjulian * Map control/status registers. 87193746Sjulian */ 87294863Sjulian#if 0 87394863Sjulian command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4); 87494863Sjulian command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN); 87594863Sjulian pci_write_config(dev, PCI_COMMAND_STATUS_REG, command & 0x000000ff, 4); 87694863Sjulian command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4); 87794863Sjulian#endif 87893746Sjulian command = pci_read_config(dev, PCIR_COMMAND, 4); 87993746Sjulian command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN); 88093746Sjulian pci_write_config(dev, PCIR_COMMAND, command & 0x000000ff, 4); 88193746Sjulian command = pci_read_config(dev, PCIR_COMMAND, 4); 88293746Sjulian 88393746Sjulian if (my_info_tmp->my_did == MTD800ID) { 88493746Sjulian iobase = pci_read_config(dev, MY_PCI_LOIO, 4); 88593746Sjulian if (iobase & 0x300) 88693746Sjulian MY_USEIOSPACE = 0; 88793746Sjulian } 88893746Sjulian if (MY_USEIOSPACE) { 88993746Sjulian if (!(command & PCIM_CMD_PORTEN)) { 89093746Sjulian printf("my%d: failed to enable I/O ports!\n", unit); 89193746Sjulian free(sc, M_DEVBUF); 89293746Sjulian error = ENXIO; 89393746Sjulian goto fail; 89493746Sjulian } 89593746Sjulian#if 0 89694863Sjulian if (!pci_map_port(config_id, MY_PCI_LOIO, (u_int16_t *) & (sc->my_bhandle))) { 89794863Sjulian printf("my%d: couldn't map ports\n", unit); 89894863Sjulian error = ENXIO; 89994863Sjulian goto fail; 90093746Sjulian } 90193746Sjulian 90293746Sjulian sc->my_btag = I386_BUS_SPACE_IO; 90393746Sjulian#endif 90493746Sjulian } else { 90593746Sjulian if (!(command & PCIM_CMD_MEMEN)) { 90693746Sjulian printf("my%d: failed to enable memory mapping!\n", 90793746Sjulian unit); 90893746Sjulian error = ENXIO; 90993746Sjulian goto fail; 91093746Sjulian } 91193746Sjulian#if 0 91293746Sjulian if (!pci_map_mem(config_id, MY_PCI_LOMEM, &vbase, &pbase)) { 91393746Sjulian printf ("my%d: couldn't map memory\n", unit); 91493746Sjulian error = ENXIO; 91593746Sjulian goto fail; 91693746Sjulian } 91794863Sjulian sc->my_btag = I386_BUS_SPACE_MEM; 91894863Sjulian sc->my_bhandle = vbase; 91993746Sjulian#endif 92093746Sjulian } 92193746Sjulian 92293746Sjulian rid = MY_RID; 92393746Sjulian sc->my_res = bus_alloc_resource(dev, MY_RES, &rid, 92493746Sjulian 0, ~0, 1, RF_ACTIVE); 92593746Sjulian 92693746Sjulian if (sc->my_res == NULL) { 92793746Sjulian printf("my%d: couldn't map ports/memory\n", unit); 92893746Sjulian error = ENXIO; 92993746Sjulian goto fail; 93093746Sjulian } 93193746Sjulian sc->my_btag = rman_get_bustag(sc->my_res); 93293746Sjulian sc->my_bhandle = rman_get_bushandle(sc->my_res); 93393746Sjulian 93493746Sjulian rid = 0; 93593746Sjulian sc->my_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 93693746Sjulian RF_SHAREABLE | RF_ACTIVE); 93793746Sjulian 93893746Sjulian if (sc->my_irq == NULL) { 93993746Sjulian printf("my%d: couldn't map interrupt\n", unit); 94093746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 94193746Sjulian error = ENXIO; 94293746Sjulian goto fail; 94393746Sjulian } 94493746Sjulian error = bus_setup_intr(dev, sc->my_irq, INTR_TYPE_NET, 94593746Sjulian my_intr, sc, &sc->my_intrhand); 94693746Sjulian 94793746Sjulian if (error) { 94893746Sjulian bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq); 94993746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 95093746Sjulian printf("my%d: couldn't set up irq\n", unit); 95193746Sjulian goto fail; 95293746Sjulian } 95393746Sjulian callout_handle_init(&sc->my_stat_ch); 95493746Sjulian 95593746Sjulian sc->my_info = my_info_tmp; 95693746Sjulian 95793746Sjulian /* Reset the adapter. */ 95893746Sjulian my_reset(sc); 95993746Sjulian 96093746Sjulian /* 96193746Sjulian * Get station address 96293746Sjulian */ 96393746Sjulian for (i = 0; i < ETHER_ADDR_LEN; ++i) 96493746Sjulian eaddr[i] = CSR_READ_1(sc, MY_PAR0 + i); 96593746Sjulian 96693746Sjulian /* 96793746Sjulian * A Myson chip was detected. Inform the world. 96893746Sjulian */ 96993746Sjulian printf("my%d: Ethernet address: %6D\n", unit, eaddr, ":"); 97093746Sjulian 97193746Sjulian sc->my_unit = unit; 97293746Sjulian bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 97393746Sjulian 97493746Sjulian sc->my_ldata_ptr = malloc(sizeof(struct my_list_data) + 8, 97593746Sjulian M_DEVBUF, M_NOWAIT); 97693746Sjulian if (sc->my_ldata_ptr == NULL) { 97793746Sjulian free(sc, M_DEVBUF); 97893746Sjulian printf("my%d: no memory for list buffers!\n", unit); 97993746Sjulian error = ENXIO; 98093746Sjulian goto fail; 98193746Sjulian } 98293746Sjulian sc->my_ldata = (struct my_list_data *) sc->my_ldata_ptr; 983106588Sjhb round = (uintptr_t)sc->my_ldata_ptr & 0xF; 98493746Sjulian roundptr = sc->my_ldata_ptr; 98593746Sjulian for (i = 0; i < 8; i++) { 98693746Sjulian if (round % 8) { 98793746Sjulian round++; 98893746Sjulian roundptr++; 98993746Sjulian } else 99093746Sjulian break; 99193746Sjulian } 99293746Sjulian sc->my_ldata = (struct my_list_data *) roundptr; 99393746Sjulian bzero(sc->my_ldata, sizeof(struct my_list_data)); 99493746Sjulian 99593746Sjulian ifp = &sc->arpcom.ac_if; 99693746Sjulian ifp->if_softc = sc; 99793746Sjulian ifp->if_unit = unit; 99893746Sjulian ifp->if_name = "my"; 99993746Sjulian ifp->if_mtu = ETHERMTU; 100093746Sjulian ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 100193746Sjulian ifp->if_ioctl = my_ioctl; 100293746Sjulian ifp->if_output = ether_output; 100393746Sjulian ifp->if_start = my_start; 100493746Sjulian ifp->if_watchdog = my_watchdog; 100593746Sjulian ifp->if_init = my_init; 100693746Sjulian ifp->if_baudrate = 10000000; 100793746Sjulian ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 100893746Sjulian 100993746Sjulian if (sc->my_info->my_did == MTD803ID) 101093746Sjulian sc->my_pinfo = my_phys; 101193746Sjulian else { 101293746Sjulian if (bootverbose) 101393746Sjulian printf("my%d: probing for a PHY\n", sc->my_unit); 101493746Sjulian for (i = MY_PHYADDR_MIN; i < MY_PHYADDR_MAX + 1; i++) { 101593746Sjulian if (bootverbose) 101693746Sjulian printf("my%d: checking address: %d\n", 101793746Sjulian sc->my_unit, i); 101893746Sjulian sc->my_phy_addr = i; 101993746Sjulian phy_sts = my_phy_readreg(sc, PHY_BMSR); 102093746Sjulian if ((phy_sts != 0) && (phy_sts != 0xffff)) 102193746Sjulian break; 102293746Sjulian else 102393746Sjulian phy_sts = 0; 102493746Sjulian } 102593746Sjulian if (phy_sts) { 102693746Sjulian phy_vid = my_phy_readreg(sc, PHY_VENID); 102793746Sjulian phy_did = my_phy_readreg(sc, PHY_DEVID); 102893746Sjulian if (bootverbose) { 102993746Sjulian printf("my%d: found PHY at address %d, ", 103093746Sjulian sc->my_unit, sc->my_phy_addr); 103193746Sjulian printf("vendor id: %x device id: %x\n", 103293746Sjulian phy_vid, phy_did); 103393746Sjulian } 103493746Sjulian p = my_phys; 103593746Sjulian while (p->my_vid) { 103693746Sjulian if (phy_vid == p->my_vid) { 103793746Sjulian sc->my_pinfo = p; 103893746Sjulian break; 103993746Sjulian } 104093746Sjulian p++; 104193746Sjulian } 104293746Sjulian if (sc->my_pinfo == NULL) 104393746Sjulian sc->my_pinfo = &my_phys[PHY_UNKNOWN]; 104493746Sjulian if (bootverbose) 104593746Sjulian printf("my%d: PHY type: %s\n", 104693746Sjulian sc->my_unit, sc->my_pinfo->my_name); 104793746Sjulian } else { 104893746Sjulian printf("my%d: MII without any phy!\n", sc->my_unit); 104993746Sjulian error = ENXIO; 105093746Sjulian goto fail; 105193746Sjulian } 105293746Sjulian } 105393746Sjulian 105493746Sjulian /* Do ifmedia setup. */ 105593746Sjulian ifmedia_init(&sc->ifmedia, 0, my_ifmedia_upd, my_ifmedia_sts); 105693746Sjulian my_getmode_mii(sc); 105793746Sjulian my_autoneg_mii(sc, MY_FLAG_FORCEDELAY, 1); 105893746Sjulian media = sc->ifmedia.ifm_media; 105993746Sjulian my_stop(sc); 106093746Sjulian ifmedia_set(&sc->ifmedia, media); 106193746Sjulian 1062106937Ssam ether_ifattach(ifp, eaddr); 106393746Sjulian 106493746Sjulian#if 0 106593746Sjulian at_shutdown(my_shutdown, sc, SHUTDOWN_POST_SYNC); 106693746Sjulian shutdownhook_establish(my_shutdown, sc); 106793746Sjulian#endif 106893746Sjulian 106993746Sjulian MY_UNLOCK(sc); 107093746Sjulian return (0); 107193746Sjulian 107293746Sjulianfail: 107393746Sjulian MY_UNLOCK(sc); 107493746Sjulian mtx_destroy(&sc->my_mtx); 107593746Sjulian splx(s); 107693746Sjulian return (error); 107793746Sjulian} 107893746Sjulian 107993746Sjulianstatic int 108093746Sjulianmy_detach(device_t dev) 108193746Sjulian{ 108293746Sjulian struct my_softc *sc; 108393746Sjulian struct ifnet *ifp; 108493746Sjulian int s; 108593746Sjulian 108693746Sjulian s = splimp(); 108793746Sjulian sc = device_get_softc(dev); 108893746Sjulian MY_LOCK(sc); 108993746Sjulian ifp = &sc->arpcom.ac_if; 1090106937Ssam ether_ifdetach(ifp); 109193746Sjulian my_stop(sc); 109293746Sjulian 109394863Sjulian#if 0 109494863Sjulian bus_generic_detach(dev); 109594863Sjulian device_delete_child(dev, sc->rl_miibus); 109694863Sjulian#endif 109794863Sjulian 109893746Sjulian bus_teardown_intr(dev, sc->my_irq, sc->my_intrhand); 109993746Sjulian bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq); 110093746Sjulian bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 110194863Sjulian#if 0 110294863Sjulian contigfree(sc->my_cdata.my_rx_buf, MY_RXBUFLEN + 32, M_DEVBUF); 110394863Sjulian#endif 110493746Sjulian free(sc, M_DEVBUF); 110593746Sjulian MY_UNLOCK(sc); 110693746Sjulian splx(s); 110793746Sjulian mtx_destroy(&sc->my_mtx); 110893746Sjulian return (0); 110993746Sjulian} 111093746Sjulian 111193746Sjulian 111293746Sjulian/* 111393746Sjulian * Initialize the transmit descriptors. 111493746Sjulian */ 111593746Sjulianstatic int 111693746Sjulianmy_list_tx_init(struct my_softc * sc) 111793746Sjulian{ 111893746Sjulian struct my_chain_data *cd; 111993746Sjulian struct my_list_data *ld; 112093746Sjulian int i; 112193746Sjulian 112293746Sjulian MY_LOCK(sc); 112393746Sjulian cd = &sc->my_cdata; 112493746Sjulian ld = sc->my_ldata; 112593746Sjulian for (i = 0; i < MY_TX_LIST_CNT; i++) { 112693746Sjulian cd->my_tx_chain[i].my_ptr = &ld->my_tx_list[i]; 112793746Sjulian if (i == (MY_TX_LIST_CNT - 1)) 112893746Sjulian cd->my_tx_chain[i].my_nextdesc = &cd->my_tx_chain[0]; 112993746Sjulian else 113093746Sjulian cd->my_tx_chain[i].my_nextdesc = 113193746Sjulian &cd->my_tx_chain[i + 1]; 113293746Sjulian } 113393746Sjulian cd->my_tx_free = &cd->my_tx_chain[0]; 113493746Sjulian cd->my_tx_tail = cd->my_tx_head = NULL; 113593746Sjulian MY_UNLOCK(sc); 113693746Sjulian return (0); 113793746Sjulian} 113893746Sjulian 113993746Sjulian/* 114093746Sjulian * Initialize the RX descriptors and allocate mbufs for them. Note that we 114193746Sjulian * arrange the descriptors in a closed ring, so that the last descriptor 114293746Sjulian * points back to the first. 114393746Sjulian */ 114493746Sjulianstatic int 114593746Sjulianmy_list_rx_init(struct my_softc * sc) 114693746Sjulian{ 114793746Sjulian struct my_chain_data *cd; 114893746Sjulian struct my_list_data *ld; 114993746Sjulian int i; 115093746Sjulian 115193746Sjulian MY_LOCK(sc); 115293746Sjulian cd = &sc->my_cdata; 115393746Sjulian ld = sc->my_ldata; 115493746Sjulian for (i = 0; i < MY_RX_LIST_CNT; i++) { 115593746Sjulian cd->my_rx_chain[i].my_ptr = 115693746Sjulian (struct my_desc *) & ld->my_rx_list[i]; 115797641Sjulian if (my_newbuf(sc, &cd->my_rx_chain[i]) == ENOBUFS) { 115897641Sjulian MY_UNLOCK(sc); 115993746Sjulian return (ENOBUFS); 116097641Sjulian } 116193746Sjulian if (i == (MY_RX_LIST_CNT - 1)) { 116293746Sjulian cd->my_rx_chain[i].my_nextdesc = &cd->my_rx_chain[0]; 116393746Sjulian ld->my_rx_list[i].my_next = vtophys(&ld->my_rx_list[0]); 116493746Sjulian } else { 116593746Sjulian cd->my_rx_chain[i].my_nextdesc = 116693746Sjulian &cd->my_rx_chain[i + 1]; 116793746Sjulian ld->my_rx_list[i].my_next = 116893746Sjulian vtophys(&ld->my_rx_list[i + 1]); 116993746Sjulian } 117093746Sjulian } 117193746Sjulian cd->my_rx_head = &cd->my_rx_chain[0]; 117293746Sjulian MY_UNLOCK(sc); 117393746Sjulian return (0); 117493746Sjulian} 117593746Sjulian 117693746Sjulian/* 117793746Sjulian * Initialize an RX descriptor and attach an MBUF cluster. 117893746Sjulian */ 117993746Sjulianstatic int 118093746Sjulianmy_newbuf(struct my_softc * sc, struct my_chain_onefrag * c) 118193746Sjulian{ 118293746Sjulian struct mbuf *m_new = NULL; 118393746Sjulian 118493746Sjulian MY_LOCK(sc); 1185111119Simp MGETHDR(m_new, M_DONTWAIT, MT_DATA); 118693746Sjulian if (m_new == NULL) { 118793746Sjulian printf("my%d: no memory for rx list -- packet dropped!\n", 118893746Sjulian sc->my_unit); 118995939Sjulian MY_UNLOCK(sc); 119093746Sjulian return (ENOBUFS); 119193746Sjulian } 1192111119Simp MCLGET(m_new, M_DONTWAIT); 119393746Sjulian if (!(m_new->m_flags & M_EXT)) { 119493746Sjulian printf("my%d: no memory for rx list -- packet dropped!\n", 119593746Sjulian sc->my_unit); 119693746Sjulian m_freem(m_new); 119795939Sjulian MY_UNLOCK(sc); 119893746Sjulian return (ENOBUFS); 119993746Sjulian } 120093746Sjulian c->my_mbuf = m_new; 120193746Sjulian c->my_ptr->my_data = vtophys(mtod(m_new, caddr_t)); 120293746Sjulian c->my_ptr->my_ctl = (MCLBYTES - 1) << MY_RBSShift; 120393746Sjulian c->my_ptr->my_status = MY_OWNByNIC; 120493746Sjulian MY_UNLOCK(sc); 120593746Sjulian return (0); 120693746Sjulian} 120793746Sjulian 120893746Sjulian/* 120993746Sjulian * A frame has been uploaded: pass the resulting mbuf chain up to the higher 121093746Sjulian * level protocols. 121193746Sjulian */ 121293746Sjulianstatic void 121393746Sjulianmy_rxeof(struct my_softc * sc) 121493746Sjulian{ 121593746Sjulian struct ether_header *eh; 121693746Sjulian struct mbuf *m; 121793746Sjulian struct ifnet *ifp; 121893746Sjulian struct my_chain_onefrag *cur_rx; 121993746Sjulian int total_len = 0; 122093746Sjulian u_int32_t rxstat; 122193746Sjulian 122293746Sjulian MY_LOCK(sc); 122393746Sjulian ifp = &sc->arpcom.ac_if; 122493746Sjulian while (!((rxstat = sc->my_cdata.my_rx_head->my_ptr->my_status) 122593746Sjulian & MY_OWNByNIC)) { 122693746Sjulian cur_rx = sc->my_cdata.my_rx_head; 122793746Sjulian sc->my_cdata.my_rx_head = cur_rx->my_nextdesc; 122893746Sjulian 122993746Sjulian if (rxstat & MY_ES) { /* error summary: give up this rx pkt */ 123093746Sjulian ifp->if_ierrors++; 123193746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 123293746Sjulian continue; 123393746Sjulian } 123493746Sjulian /* No errors; receive the packet. */ 123593746Sjulian total_len = (rxstat & MY_FLNGMASK) >> MY_FLNGShift; 123693746Sjulian total_len -= ETHER_CRC_LEN; 123793746Sjulian 123893746Sjulian if (total_len < MINCLSIZE) { 123993746Sjulian m = m_devget(mtod(cur_rx->my_mbuf, char *), 124093746Sjulian total_len, 0, ifp, NULL); 124193746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 124293746Sjulian if (m == NULL) { 124393746Sjulian ifp->if_ierrors++; 124493746Sjulian continue; 124593746Sjulian } 124693746Sjulian } else { 124793746Sjulian m = cur_rx->my_mbuf; 124893746Sjulian /* 124993746Sjulian * Try to conjure up a new mbuf cluster. If that 125093746Sjulian * fails, it means we have an out of memory condition 125193746Sjulian * and should leave the buffer in place and continue. 125293746Sjulian * This will result in a lost packet, but there's 125393746Sjulian * little else we can do in this situation. 125493746Sjulian */ 125593746Sjulian if (my_newbuf(sc, cur_rx) == ENOBUFS) { 125693746Sjulian ifp->if_ierrors++; 125793746Sjulian cur_rx->my_ptr->my_status = MY_OWNByNIC; 125893746Sjulian continue; 125993746Sjulian } 126093746Sjulian m->m_pkthdr.rcvif = ifp; 126193746Sjulian m->m_pkthdr.len = m->m_len = total_len; 126293746Sjulian } 126393746Sjulian ifp->if_ipackets++; 126493746Sjulian eh = mtod(m, struct ether_header *); 126593746Sjulian#if NBPFILTER > 0 126693746Sjulian /* 126793746Sjulian * Handle BPF listeners. Let the BPF user see the packet, but 126893746Sjulian * don't pass it up to the ether_input() layer unless it's a 126993746Sjulian * broadcast packet, multicast packet, matches our ethernet 127093746Sjulian * address or the interface is in promiscuous mode. 127193746Sjulian */ 127293746Sjulian if (ifp->if_bpf) { 1273106937Ssam BPF_MTAP(ifp, m); 127493746Sjulian if (ifp->if_flags & IFF_PROMISC && 127593746Sjulian (bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr, 127693746Sjulian ETHER_ADDR_LEN) && 127793746Sjulian (eh->ether_dhost[0] & 1) == 0)) { 127893746Sjulian m_freem(m); 127993746Sjulian continue; 128093746Sjulian } 128193746Sjulian } 128293746Sjulian#endif 1283106937Ssam (*ifp->if_input)(ifp, m); 128493746Sjulian } 128593746Sjulian MY_UNLOCK(sc); 128693746Sjulian return; 128793746Sjulian} 128893746Sjulian 128993746Sjulian 129093746Sjulian/* 129193746Sjulian * A frame was downloaded to the chip. It's safe for us to clean up the list 129293746Sjulian * buffers. 129393746Sjulian */ 129493746Sjulianstatic void 129593746Sjulianmy_txeof(struct my_softc * sc) 129693746Sjulian{ 129793746Sjulian struct my_chain *cur_tx; 129893746Sjulian struct ifnet *ifp; 129993746Sjulian 130093746Sjulian MY_LOCK(sc); 130193746Sjulian ifp = &sc->arpcom.ac_if; 130293746Sjulian /* Clear the timeout timer. */ 130393746Sjulian ifp->if_timer = 0; 130495939Sjulian if (sc->my_cdata.my_tx_head == NULL) { 130595939Sjulian MY_UNLOCK(sc); 130693746Sjulian return; 130795939Sjulian } 130893746Sjulian /* 130993746Sjulian * Go through our tx list and free mbufs for those frames that have 131093746Sjulian * been transmitted. 131193746Sjulian */ 131293746Sjulian while (sc->my_cdata.my_tx_head->my_mbuf != NULL) { 131393746Sjulian u_int32_t txstat; 131493746Sjulian 131593746Sjulian cur_tx = sc->my_cdata.my_tx_head; 131693746Sjulian txstat = MY_TXSTATUS(cur_tx); 131793746Sjulian if ((txstat & MY_OWNByNIC) || txstat == MY_UNSENT) 131893746Sjulian break; 131993746Sjulian if (!(CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced)) { 132093746Sjulian if (txstat & MY_TXERR) { 132193746Sjulian ifp->if_oerrors++; 132293746Sjulian if (txstat & MY_EC) /* excessive collision */ 132393746Sjulian ifp->if_collisions++; 132493746Sjulian if (txstat & MY_LC) /* late collision */ 132593746Sjulian ifp->if_collisions++; 132693746Sjulian } 132793746Sjulian ifp->if_collisions += (txstat & MY_NCRMASK) >> 132893746Sjulian MY_NCRShift; 132993746Sjulian } 133093746Sjulian ifp->if_opackets++; 133193746Sjulian m_freem(cur_tx->my_mbuf); 133293746Sjulian cur_tx->my_mbuf = NULL; 133393746Sjulian if (sc->my_cdata.my_tx_head == sc->my_cdata.my_tx_tail) { 133493746Sjulian sc->my_cdata.my_tx_head = NULL; 133593746Sjulian sc->my_cdata.my_tx_tail = NULL; 133693746Sjulian break; 133793746Sjulian } 133893746Sjulian sc->my_cdata.my_tx_head = cur_tx->my_nextdesc; 133993746Sjulian } 134093746Sjulian if (CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced) { 134193746Sjulian ifp->if_collisions += (CSR_READ_4(sc, MY_TSR) & MY_NCRMask); 134293746Sjulian } 134393746Sjulian MY_UNLOCK(sc); 134493746Sjulian return; 134593746Sjulian} 134693746Sjulian 134793746Sjulian/* 134893746Sjulian * TX 'end of channel' interrupt handler. 134993746Sjulian */ 135093746Sjulianstatic void 135193746Sjulianmy_txeoc(struct my_softc * sc) 135293746Sjulian{ 135393746Sjulian struct ifnet *ifp; 135493746Sjulian 135593746Sjulian MY_LOCK(sc); 135693746Sjulian ifp = &sc->arpcom.ac_if; 135793746Sjulian ifp->if_timer = 0; 135893746Sjulian if (sc->my_cdata.my_tx_head == NULL) { 135993746Sjulian ifp->if_flags &= ~IFF_OACTIVE; 136093746Sjulian sc->my_cdata.my_tx_tail = NULL; 136193746Sjulian if (sc->my_want_auto) 136293746Sjulian my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1); 136393746Sjulian } else { 136493746Sjulian if (MY_TXOWN(sc->my_cdata.my_tx_head) == MY_UNSENT) { 136593746Sjulian MY_TXOWN(sc->my_cdata.my_tx_head) = MY_OWNByNIC; 136693746Sjulian ifp->if_timer = 5; 136793746Sjulian CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF); 136893746Sjulian } 136993746Sjulian } 137093746Sjulian MY_UNLOCK(sc); 137193746Sjulian return; 137293746Sjulian} 137393746Sjulian 137493746Sjulianstatic void 137593746Sjulianmy_intr(void *arg) 137693746Sjulian{ 137793746Sjulian struct my_softc *sc; 137893746Sjulian struct ifnet *ifp; 137993746Sjulian u_int32_t status; 138093746Sjulian 138193746Sjulian sc = arg; 138293746Sjulian MY_LOCK(sc); 138393746Sjulian ifp = &sc->arpcom.ac_if; 138493746Sjulian if (!(ifp->if_flags & IFF_UP)) { 138593746Sjulian MY_UNLOCK(sc); 138693746Sjulian return; 138793746Sjulian } 138893746Sjulian /* Disable interrupts. */ 138993746Sjulian CSR_WRITE_4(sc, MY_IMR, 0x00000000); 139093746Sjulian 139193746Sjulian for (;;) { 139293746Sjulian status = CSR_READ_4(sc, MY_ISR); 139393746Sjulian status &= MY_INTRS; 139493746Sjulian if (status) 139593746Sjulian CSR_WRITE_4(sc, MY_ISR, status); 139693746Sjulian else 139793746Sjulian break; 139893746Sjulian 139993746Sjulian if (status & MY_RI) /* receive interrupt */ 140093746Sjulian my_rxeof(sc); 140193746Sjulian 140293746Sjulian if ((status & MY_RBU) || (status & MY_RxErr)) { 140393746Sjulian /* rx buffer unavailable or rx error */ 140493746Sjulian ifp->if_ierrors++; 140593746Sjulian#ifdef foo 140693746Sjulian my_stop(sc); 140793746Sjulian my_reset(sc); 140893746Sjulian my_init(sc); 140993746Sjulian#endif 141093746Sjulian } 141193746Sjulian if (status & MY_TI) /* tx interrupt */ 141293746Sjulian my_txeof(sc); 141393746Sjulian if (status & MY_ETI) /* tx early interrupt */ 141493746Sjulian my_txeof(sc); 141593746Sjulian if (status & MY_TBU) /* tx buffer unavailable */ 141693746Sjulian my_txeoc(sc); 141794863Sjulian 141894863Sjulian#if 0 /* 90/1/18 delete */ 141994863Sjulian if (status & MY_FBE) { 142094863Sjulian my_reset(sc); 142194863Sjulian my_init(sc); 142294863Sjulian } 142394863Sjulian#endif 142494863Sjulian 142593746Sjulian } 142693746Sjulian 142793746Sjulian /* Re-enable interrupts. */ 142893746Sjulian CSR_WRITE_4(sc, MY_IMR, MY_INTRS); 142993746Sjulian if (ifp->if_snd.ifq_head != NULL) 143093746Sjulian my_start(ifp); 143193746Sjulian MY_UNLOCK(sc); 143293746Sjulian return; 143393746Sjulian} 143493746Sjulian 143593746Sjulian/* 143693746Sjulian * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data 143793746Sjulian * pointers to the fragment pointers. 143893746Sjulian */ 143993746Sjulianstatic int 144093746Sjulianmy_encap(struct my_softc * sc, struct my_chain * c, struct mbuf * m_head) 144193746Sjulian{ 144293746Sjulian struct my_desc *f = NULL; 144393746Sjulian int total_len; 144493746Sjulian struct mbuf *m, *m_new = NULL; 144593746Sjulian 144693746Sjulian MY_LOCK(sc); 144793746Sjulian /* calculate the total tx pkt length */ 144893746Sjulian total_len = 0; 144993746Sjulian for (m = m_head; m != NULL; m = m->m_next) 145093746Sjulian total_len += m->m_len; 145193746Sjulian /* 145293746Sjulian * Start packing the mbufs in this chain into the fragment pointers. 145393746Sjulian * Stop when we run out of fragments or hit the end of the mbuf 145493746Sjulian * chain. 145593746Sjulian */ 145693746Sjulian m = m_head; 1457111119Simp MGETHDR(m_new, M_DONTWAIT, MT_DATA); 145893746Sjulian if (m_new == NULL) { 145993746Sjulian printf("my%d: no memory for tx list", sc->my_unit); 146095939Sjulian MY_UNLOCK(sc); 146193746Sjulian return (1); 146293746Sjulian } 146393746Sjulian if (m_head->m_pkthdr.len > MHLEN) { 1464111119Simp MCLGET(m_new, M_DONTWAIT); 146593746Sjulian if (!(m_new->m_flags & M_EXT)) { 146693746Sjulian m_freem(m_new); 146793746Sjulian printf("my%d: no memory for tx list", sc->my_unit); 146895939Sjulian MY_UNLOCK(sc); 146993746Sjulian return (1); 147093746Sjulian } 147193746Sjulian } 147293746Sjulian m_copydata(m_head, 0, m_head->m_pkthdr.len, mtod(m_new, caddr_t)); 147393746Sjulian m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len; 147493746Sjulian m_freem(m_head); 147593746Sjulian m_head = m_new; 147693746Sjulian f = &c->my_ptr->my_frag[0]; 147793746Sjulian f->my_status = 0; 147893746Sjulian f->my_data = vtophys(mtod(m_new, caddr_t)); 147993746Sjulian total_len = m_new->m_len; 148093746Sjulian f->my_ctl = MY_TXFD | MY_TXLD | MY_CRCEnable | MY_PADEnable; 148193746Sjulian f->my_ctl |= total_len << MY_PKTShift; /* pkt size */ 148293746Sjulian f->my_ctl |= total_len; /* buffer size */ 148394904Sjulian /* 89/12/29 add, for mtd891 *//* [ 89? ] */ 148493746Sjulian if (sc->my_info->my_did == MTD891ID) 148593746Sjulian f->my_ctl |= MY_ETIControl | MY_RetryTxLC; 148693746Sjulian c->my_mbuf = m_head; 148793746Sjulian c->my_lastdesc = 0; 148893746Sjulian MY_TXNEXT(c) = vtophys(&c->my_nextdesc->my_ptr->my_frag[0]); 148993746Sjulian MY_UNLOCK(sc); 149093746Sjulian return (0); 149193746Sjulian} 149293746Sjulian 149393746Sjulian/* 149493746Sjulian * Main transmit routine. To avoid having to do mbuf copies, we put pointers 149593746Sjulian * to the mbuf data regions directly in the transmit lists. We also save a 149693746Sjulian * copy of the pointers since the transmit list fragment pointers are 149793746Sjulian * physical addresses. 149893746Sjulian */ 149993746Sjulianstatic void 150093746Sjulianmy_start(struct ifnet * ifp) 150193746Sjulian{ 150293746Sjulian struct my_softc *sc; 150393746Sjulian struct mbuf *m_head = NULL; 150493746Sjulian struct my_chain *cur_tx = NULL, *start_tx; 150593746Sjulian 150693746Sjulian sc = ifp->if_softc; 150793746Sjulian MY_LOCK(sc); 150893746Sjulian if (sc->my_autoneg) { 150993746Sjulian sc->my_tx_pend = 1; 151093746Sjulian MY_UNLOCK(sc); 151193746Sjulian return; 151293746Sjulian } 151393746Sjulian /* 151493746Sjulian * Check for an available queue slot. If there are none, punt. 151593746Sjulian */ 151693746Sjulian if (sc->my_cdata.my_tx_free->my_mbuf != NULL) { 151793746Sjulian ifp->if_flags |= IFF_OACTIVE; 151893746Sjulian MY_UNLOCK(sc); 151993746Sjulian return; 152093746Sjulian } 152193746Sjulian start_tx = sc->my_cdata.my_tx_free; 152293746Sjulian while (sc->my_cdata.my_tx_free->my_mbuf == NULL) { 152393746Sjulian IF_DEQUEUE(&ifp->if_snd, m_head); 152493746Sjulian if (m_head == NULL) 152593746Sjulian break; 152693746Sjulian 152793746Sjulian /* Pick a descriptor off the free list. */ 152893746Sjulian cur_tx = sc->my_cdata.my_tx_free; 152993746Sjulian sc->my_cdata.my_tx_free = cur_tx->my_nextdesc; 153093746Sjulian 153193746Sjulian /* Pack the data into the descriptor. */ 153293746Sjulian my_encap(sc, cur_tx, m_head); 153393746Sjulian 153493746Sjulian if (cur_tx != start_tx) 153593746Sjulian MY_TXOWN(cur_tx) = MY_OWNByNIC; 153693746Sjulian#if NBPFILTER > 0 153793746Sjulian /* 153893746Sjulian * If there's a BPF listener, bounce a copy of this frame to 153993746Sjulian * him. 154093746Sjulian */ 1541106937Ssam BPF_MTAP(ifp, cur_tx->my_mbuf); 154293746Sjulian#endif 154393746Sjulian } 154493746Sjulian /* 154593746Sjulian * If there are no packets queued, bail. 154693746Sjulian */ 154793746Sjulian if (cur_tx == NULL) { 154893746Sjulian MY_UNLOCK(sc); 154993746Sjulian return; 155093746Sjulian } 155193746Sjulian /* 155293746Sjulian * Place the request for the upload interrupt in the last descriptor 155393746Sjulian * in the chain. This way, if we're chaining several packets at once, 155493746Sjulian * we'll only get an interupt once for the whole chain rather than 155593746Sjulian * once for each packet. 155693746Sjulian */ 155793746Sjulian MY_TXCTL(cur_tx) |= MY_TXIC; 155893746Sjulian cur_tx->my_ptr->my_frag[0].my_ctl |= MY_TXIC; 155993746Sjulian sc->my_cdata.my_tx_tail = cur_tx; 156093746Sjulian if (sc->my_cdata.my_tx_head == NULL) 156193746Sjulian sc->my_cdata.my_tx_head = start_tx; 156293746Sjulian MY_TXOWN(start_tx) = MY_OWNByNIC; 156393746Sjulian CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF); /* tx polling demand */ 156493746Sjulian 156593746Sjulian /* 156693746Sjulian * Set a timeout in case the chip goes out to lunch. 156793746Sjulian */ 156893746Sjulian ifp->if_timer = 5; 156993746Sjulian MY_UNLOCK(sc); 157093746Sjulian return; 157193746Sjulian} 157293746Sjulian 157393746Sjulianstatic void 157493746Sjulianmy_init(void *xsc) 157593746Sjulian{ 157693746Sjulian struct my_softc *sc = xsc; 157793746Sjulian struct ifnet *ifp = &sc->arpcom.ac_if; 157893746Sjulian int s; 157993746Sjulian u_int16_t phy_bmcr = 0; 158093746Sjulian 158193746Sjulian MY_LOCK(sc); 158293746Sjulian if (sc->my_autoneg) { 158393746Sjulian MY_UNLOCK(sc); 158493746Sjulian return; 158593746Sjulian } 158693746Sjulian s = splimp(); 158793746Sjulian if (sc->my_pinfo != NULL) 158893746Sjulian phy_bmcr = my_phy_readreg(sc, PHY_BMCR); 158993746Sjulian /* 159093746Sjulian * Cancel pending I/O and free all RX/TX buffers. 159193746Sjulian */ 159293746Sjulian my_stop(sc); 159393746Sjulian my_reset(sc); 159493746Sjulian 159593746Sjulian /* 159693746Sjulian * Set cache alignment and burst length. 159793746Sjulian */ 159894863Sjulian#if 0 /* 89/9/1 modify, */ 159994863Sjulian CSR_WRITE_4(sc, MY_BCR, MY_RPBLE512); 160094863Sjulian CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF); 160194863Sjulian#endif 160293746Sjulian CSR_WRITE_4(sc, MY_BCR, MY_PBL8); 160393746Sjulian CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF | MY_RBLEN | MY_RPBLE512); 160493746Sjulian /* 160593746Sjulian * 89/12/29 add, for mtd891, 160693746Sjulian */ 160793746Sjulian if (sc->my_info->my_did == MTD891ID) { 160893746Sjulian MY_SETBIT(sc, MY_BCR, MY_PROG); 160993746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_Enhanced); 161093746Sjulian } 161193746Sjulian my_setcfg(sc, phy_bmcr); 161293746Sjulian /* Init circular RX list. */ 161393746Sjulian if (my_list_rx_init(sc) == ENOBUFS) { 161493746Sjulian printf("my%d: init failed: no memory for rx buffers\n", 161593746Sjulian sc->my_unit); 161693746Sjulian my_stop(sc); 161793746Sjulian (void)splx(s); 161893746Sjulian MY_UNLOCK(sc); 161993746Sjulian return; 162093746Sjulian } 162193746Sjulian /* Init TX descriptors. */ 162293746Sjulian my_list_tx_init(sc); 162393746Sjulian 162493746Sjulian /* If we want promiscuous mode, set the allframes bit. */ 162593746Sjulian if (ifp->if_flags & IFF_PROMISC) 162693746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_PROM); 162793746Sjulian else 162893746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_PROM); 162993746Sjulian 163093746Sjulian /* 163193746Sjulian * Set capture broadcast bit to capture broadcast frames. 163293746Sjulian */ 163393746Sjulian if (ifp->if_flags & IFF_BROADCAST) 163493746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_AB); 163593746Sjulian else 163693746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_AB); 163793746Sjulian 163893746Sjulian /* 163993746Sjulian * Program the multicast filter, if necessary. 164093746Sjulian */ 164193746Sjulian my_setmulti(sc); 164293746Sjulian 164393746Sjulian /* 164493746Sjulian * Load the address of the RX list. 164593746Sjulian */ 164693746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_RE); 164793746Sjulian CSR_WRITE_4(sc, MY_RXLBA, vtophys(&sc->my_ldata->my_rx_list[0])); 164893746Sjulian 164993746Sjulian /* 165093746Sjulian * Enable interrupts. 165193746Sjulian */ 165293746Sjulian CSR_WRITE_4(sc, MY_IMR, MY_INTRS); 165393746Sjulian CSR_WRITE_4(sc, MY_ISR, 0xFFFFFFFF); 165493746Sjulian 165593746Sjulian /* Enable receiver and transmitter. */ 165693746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_RE); 165793746Sjulian MY_CLRBIT(sc, MY_TCRRCR, MY_TE); 165893746Sjulian CSR_WRITE_4(sc, MY_TXLBA, vtophys(&sc->my_ldata->my_tx_list[0])); 165993746Sjulian MY_SETBIT(sc, MY_TCRRCR, MY_TE); 166093746Sjulian 166193746Sjulian /* Restore state of BMCR */ 166293746Sjulian if (sc->my_pinfo != NULL) 166393746Sjulian my_phy_writereg(sc, PHY_BMCR, phy_bmcr); 166493746Sjulian ifp->if_flags |= IFF_RUNNING; 166593746Sjulian ifp->if_flags &= ~IFF_OACTIVE; 166693746Sjulian (void)splx(s); 166793746Sjulian MY_UNLOCK(sc); 166893746Sjulian return; 166993746Sjulian} 167093746Sjulian 167193746Sjulian/* 167293746Sjulian * Set media options. 167393746Sjulian */ 167493746Sjulian 167593746Sjulianstatic int 167693746Sjulianmy_ifmedia_upd(struct ifnet * ifp) 167793746Sjulian{ 167893746Sjulian struct my_softc *sc; 167993746Sjulian struct ifmedia *ifm; 168093746Sjulian 168193746Sjulian sc = ifp->if_softc; 168293746Sjulian MY_LOCK(sc); 168393746Sjulian ifm = &sc->ifmedia; 168493746Sjulian if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) { 168593746Sjulian MY_UNLOCK(sc); 168693746Sjulian return (EINVAL); 168793746Sjulian } 168893746Sjulian if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) 168993746Sjulian my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1); 169093746Sjulian else 169193746Sjulian my_setmode_mii(sc, ifm->ifm_media); 169293746Sjulian MY_UNLOCK(sc); 169393746Sjulian return (0); 169493746Sjulian} 169593746Sjulian 169693746Sjulian/* 169793746Sjulian * Report current media status. 169893746Sjulian */ 169993746Sjulian 170093746Sjulianstatic void 170193746Sjulianmy_ifmedia_sts(struct ifnet * ifp, struct ifmediareq * ifmr) 170293746Sjulian{ 170393746Sjulian struct my_softc *sc; 170493746Sjulian u_int16_t advert = 0, ability = 0; 170593746Sjulian 170693746Sjulian sc = ifp->if_softc; 170793746Sjulian MY_LOCK(sc); 170893746Sjulian ifmr->ifm_active = IFM_ETHER; 170993746Sjulian if (!(my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_AUTONEGENBL)) { 171094863Sjulian#if 0 /* this version did not support 1000M, */ 171194863Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_1000) 171294863Sjulian ifmr->ifm_active = IFM_ETHER | IFM_1000TX; 171394863Sjulian#endif 171493746Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_SPEEDSEL) 171593746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX; 171693746Sjulian else 171793746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T; 171893746Sjulian if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX) 171993746Sjulian ifmr->ifm_active |= IFM_FDX; 172093746Sjulian else 172193746Sjulian ifmr->ifm_active |= IFM_HDX; 172293746Sjulian 172393746Sjulian MY_UNLOCK(sc); 172493746Sjulian return; 172593746Sjulian } 172693746Sjulian ability = my_phy_readreg(sc, PHY_LPAR); 172793746Sjulian advert = my_phy_readreg(sc, PHY_ANAR); 172893746Sjulian 172994863Sjulian#if 0 /* this version did not support 1000M, */ 173093746Sjulian if (sc->my_pinfo->my_vid = MarvellPHYID0) { 173193746Sjulian ability2 = my_phy_readreg(sc, PHY_1000SR); 173293746Sjulian if (ability2 & PHY_1000SR_1000BTXFULL) { 173393746Sjulian advert = 0; 173493746Sjulian ability = 0; 173595673Sphk ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_FDX; 173693746Sjulian } else if (ability & PHY_1000SR_1000BTXHALF) { 173793746Sjulian advert = 0; 173893746Sjulian ability = 0; 173995673Sphk ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_HDX; 174093746Sjulian } 174193746Sjulian } 174293746Sjulian#endif 174393746Sjulian if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) 174493746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_T4; 174593746Sjulian else if (advert & PHY_ANAR_100BTXFULL && ability & PHY_ANAR_100BTXFULL) 174693746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_FDX; 174793746Sjulian else if (advert & PHY_ANAR_100BTXHALF && ability & PHY_ANAR_100BTXHALF) 174893746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_HDX; 174993746Sjulian else if (advert & PHY_ANAR_10BTFULL && ability & PHY_ANAR_10BTFULL) 175093746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_FDX; 175193746Sjulian else if (advert & PHY_ANAR_10BTHALF && ability & PHY_ANAR_10BTHALF) 175293746Sjulian ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_HDX; 175393746Sjulian MY_UNLOCK(sc); 175493746Sjulian return; 175593746Sjulian} 175693746Sjulian 175793746Sjulianstatic int 175893746Sjulianmy_ioctl(struct ifnet * ifp, u_long command, caddr_t data) 175993746Sjulian{ 176093746Sjulian struct my_softc *sc = ifp->if_softc; 176193746Sjulian struct ifreq *ifr = (struct ifreq *) data; 176293746Sjulian int s, error = 0; 176393746Sjulian 176493746Sjulian s = splimp(); 176593746Sjulian MY_LOCK(sc); 176693746Sjulian switch (command) { 176793746Sjulian case SIOCSIFFLAGS: 176893746Sjulian if (ifp->if_flags & IFF_UP) 176993746Sjulian my_init(sc); 177093746Sjulian else if (ifp->if_flags & IFF_RUNNING) 177193746Sjulian my_stop(sc); 177293746Sjulian error = 0; 177393746Sjulian break; 177493746Sjulian case SIOCADDMULTI: 177593746Sjulian case SIOCDELMULTI: 177693746Sjulian my_setmulti(sc); 177793746Sjulian error = 0; 177893746Sjulian break; 177993746Sjulian case SIOCGIFMEDIA: 178093746Sjulian case SIOCSIFMEDIA: 178193746Sjulian error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command); 178293746Sjulian break; 178393746Sjulian default: 1784106937Ssam error = ether_ioctl(ifp, command, data); 178593746Sjulian break; 178693746Sjulian } 178793746Sjulian MY_UNLOCK(sc); 178893746Sjulian (void)splx(s); 178993746Sjulian return (error); 179093746Sjulian} 179193746Sjulian 179293746Sjulianstatic void 179393746Sjulianmy_watchdog(struct ifnet * ifp) 179493746Sjulian{ 179593746Sjulian struct my_softc *sc; 179693746Sjulian 179793746Sjulian sc = ifp->if_softc; 179893746Sjulian MY_LOCK(sc); 179993746Sjulian if (sc->my_autoneg) { 180093746Sjulian my_autoneg_mii(sc, MY_FLAG_DELAYTIMEO, 1); 180193746Sjulian MY_UNLOCK(sc); 180293746Sjulian return; 180393746Sjulian } 180493746Sjulian ifp->if_oerrors++; 180593746Sjulian printf("my%d: watchdog timeout\n", sc->my_unit); 180693746Sjulian if (!(my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT)) 180793746Sjulian printf("my%d: no carrier - transceiver cable problem?\n", 180893746Sjulian sc->my_unit); 180993746Sjulian my_stop(sc); 181093746Sjulian my_reset(sc); 181193746Sjulian my_init(sc); 181293746Sjulian if (ifp->if_snd.ifq_head != NULL) 181393746Sjulian my_start(ifp); 181493746Sjulian MY_LOCK(sc); 181593746Sjulian return; 181693746Sjulian} 181793746Sjulian 181893746Sjulian 181993746Sjulian/* 182093746Sjulian * Stop the adapter and free any mbufs allocated to the RX and TX lists. 182193746Sjulian */ 182293746Sjulianstatic void 182393746Sjulianmy_stop(struct my_softc * sc) 182493746Sjulian{ 182593746Sjulian register int i; 182693746Sjulian struct ifnet *ifp; 182793746Sjulian 182893746Sjulian MY_LOCK(sc); 182993746Sjulian ifp = &sc->arpcom.ac_if; 183093746Sjulian ifp->if_timer = 0; 183193746Sjulian 183293746Sjulian MY_CLRBIT(sc, MY_TCRRCR, (MY_RE | MY_TE)); 183393746Sjulian CSR_WRITE_4(sc, MY_IMR, 0x00000000); 183493746Sjulian CSR_WRITE_4(sc, MY_TXLBA, 0x00000000); 183593746Sjulian CSR_WRITE_4(sc, MY_RXLBA, 0x00000000); 183693746Sjulian 183793746Sjulian /* 183893746Sjulian * Free data in the RX lists. 183993746Sjulian */ 184093746Sjulian for (i = 0; i < MY_RX_LIST_CNT; i++) { 184193746Sjulian if (sc->my_cdata.my_rx_chain[i].my_mbuf != NULL) { 184293746Sjulian m_freem(sc->my_cdata.my_rx_chain[i].my_mbuf); 184393746Sjulian sc->my_cdata.my_rx_chain[i].my_mbuf = NULL; 184493746Sjulian } 184593746Sjulian } 184693746Sjulian bzero((char *)&sc->my_ldata->my_rx_list, 184793746Sjulian sizeof(sc->my_ldata->my_rx_list)); 184893746Sjulian /* 184993746Sjulian * Free the TX list buffers. 185093746Sjulian */ 185193746Sjulian for (i = 0; i < MY_TX_LIST_CNT; i++) { 185293746Sjulian if (sc->my_cdata.my_tx_chain[i].my_mbuf != NULL) { 185393746Sjulian m_freem(sc->my_cdata.my_tx_chain[i].my_mbuf); 185493746Sjulian sc->my_cdata.my_tx_chain[i].my_mbuf = NULL; 185593746Sjulian } 185693746Sjulian } 185793746Sjulian bzero((char *)&sc->my_ldata->my_tx_list, 185893746Sjulian sizeof(sc->my_ldata->my_tx_list)); 185993746Sjulian ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 186093746Sjulian MY_UNLOCK(sc); 186193746Sjulian return; 186293746Sjulian} 186393746Sjulian 186493746Sjulian/* 186593746Sjulian * Stop all chip I/O so that the kernel's probe routines don't get confused 186693746Sjulian * by errant DMAs when rebooting. 186793746Sjulian */ 186893746Sjulianstatic void 186993746Sjulianmy_shutdown(device_t dev) 187093746Sjulian{ 187193746Sjulian struct my_softc *sc; 187293746Sjulian 187393746Sjulian sc = device_get_softc(dev); 187493746Sjulian my_stop(sc); 187593746Sjulian return; 187693746Sjulian} 1877