New if_is.c isolan ethernet driver that can handle multiple cards.
This commit is contained in:
Paul Richards
parent
4029d369d7
commit
ba98737aba
@ -31,12 +31,16 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_ne.c 7.4 (Berkeley) 5/21/91
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* @(#)if_is.c
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*/
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/*
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* Isolink 4110-2 Ethernet driver
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*/
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* Isolan AT 4141-0 Ethernet driver
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* Isolink 4110
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*
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* By Paul Richards
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*
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*/
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#include "is.h"
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#if NIS > 0
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@ -91,62 +95,72 @@ struct mbuf *isget();
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* Ethernet software status per interface.
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*
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* Each interface is referenced by a network interface structure,
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* ns_if, which the routing code uses to locate the interface.
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* is_if, which the routing code uses to locate the interface.
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* This structure contains the output queue for the interface, its address, ...
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*/
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struct is_softc {
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struct arpcom ns_ac; /* Ethernet common part */
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#define ns_if ns_ac.ac_if /* network-visible interface */
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#define ns_addr ns_ac.ac_enaddr /* hardware Ethernet address */
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#define is_if ns_ac.ac_if /* network-visible interface */
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#define is_addr ns_ac.ac_enaddr /* hardware Ethernet address */
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int iobase; /* IO base address of card */
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struct mds *rd;
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struct mds *td;
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unsigned char *rbuf;
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unsigned char *tbuf;
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int last_rd;
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int last_td;
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int no_td;
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} is_softc[NIS] ;
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struct init_block init_block;
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struct mds *td, *rd;
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unsigned char *rbuf,*tbuf;
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struct init_block init_block[NIS];
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int isc;
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iswrcsr(port,val)
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iswrcsr(unit,port,val)
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int unit;
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u_short port;
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u_short val;
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{
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outw(isc+RAP,port);
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outw(isc+RDP,val);
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int iobase;
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iobase = is_softc[unit].iobase;
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outw(iobase+RAP,port);
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outw(iobase+RDP,val);
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}
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u_short isrdcsr(port)
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u_short isrdcsr(unit,port)
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int unit;
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u_short port;
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{
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outw(isc+RAP,port);
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return(inw(isc+RDP));
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int iobase;
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iobase = is_softc[unit].iobase;
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outw(iobase+RAP,port);
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return(inw(iobase+RDP));
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}
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isprobe(dvp)
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struct isa_device *dvp;
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isprobe(isdev)
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struct isa_device *isdev;
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{
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int val,i,s;
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register struct is_softc *ns = &is_softc[0];
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int unit = isdev->id_unit ;
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register struct is_softc *is = &is_softc[unit];
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isc = dvp->id_iobase;
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is->iobase = isdev->id_iobase;
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s = splimp();
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/* Stop the lance chip, put it known state */
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iswrcsr(0,STOP);
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iswrcsr(unit,0,STOP);
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DELAY(100);
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/* is there a lance? */
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iswrcsr(3, 0xffff);
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if (isrdcsr(3) != 7) {
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isc = 0;
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iswrcsr(unit,3, 0xffff);
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if (isrdcsr(unit,3) != 7) {
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is->iobase = 0;
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return (0);
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}
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iswrcsr(3, 0);
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iswrcsr(unit,3, 0);
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/* Extract board address */
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for(i=0; i < 6; i++) ns->ns_addr[i] = inb(isc+(i*2));
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for(i=0; i < 6; i++) is->is_addr[i] = inb(is->iobase+(i*2));
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splx(s);
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return (1);
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@ -171,20 +185,20 @@ isreset(unit, uban)
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* record. System will initialize the interface when it is ready
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* to accept packets. We get the ethernet address here.
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*/
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isattach(dvp)
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struct isa_device *dvp;
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isattach(isdev)
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struct isa_device *isdev;
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{
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int unit = dvp->id_unit;
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int unit = isdev->id_unit;
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register struct is_softc *is = &is_softc[unit];
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register struct ifnet *ifp = &is->ns_if;
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register struct ifnet *ifp = &is->is_if;
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/* Set up DMA */
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isa_dmacascade(dvp->id_drq);
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isa_dmacascade(isdev->id_drq);
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ifp->if_unit = unit;
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ifp->if_name = isdriver.name ;
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ifp->if_mtu = ETHERMTU;
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printf (" ethernet address %s", ether_sprintf(is->ns_addr)) ;
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printf (" ethernet address %s", ether_sprintf(is->is_addr)) ;
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ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS;
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ifp->if_init = isinit;
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ifp->if_output = ether_output;
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@ -197,61 +211,63 @@ isattach(dvp)
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/* Lance initialisation block set up */
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init_mem()
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init_mem(unit)
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int unit;
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{
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int i;
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u_long temp;
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struct is_softc *is = &is_softc[unit];
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/* Allocate memory */
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/* Temporary hack, will use kmem_alloc in future */
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#define MAXMEM ((NRBUF+NTBUF)*(BUFSIZE) + (NRBUF+NTBUF)*sizeof(struct mds) + 8)
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static u_char lance_mem[MAXMEM];
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static u_char lance_mem[NIS][MAXMEM];
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/* Align message descriptors on quad word boundary
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(this is essential) */
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temp = (u_long) &lance_mem;
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temp = (u_long) &lance_mem[unit];
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temp = (temp+8) - (temp%8);
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rd = (struct mds *) temp;
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td = (struct mds *) (temp + (NRBUF*sizeof(struct mds)));
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is->rd = (struct mds *) temp;
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is->td = (struct mds *) (temp + (NRBUF*sizeof(struct mds)));
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temp += (NRBUF+NTBUF) * sizeof(struct mds);
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init_block.mode = 0;
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init_block[unit].mode = 0;
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/* Get ethernet address */
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for (i=0; i<6; i++)
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init_block.padr[i] = inb(isc+(i*2));
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init_block[unit].padr[i] = is_softc[unit].is_addr[i];
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/* Clear multicast address for now */
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for (i=0; i<8; i++)
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init_block.ladrf[i] = 0;
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init_block[unit].ladrf[i] = 0;
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init_block.rdra = kvtop(rd);
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init_block.rlen = ((kvtop(rd) >> 16) & 0xff) | (RLEN<<13);
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init_block.tdra = kvtop(td);
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init_block.tlen = ((kvtop(td) >> 16) & 0xff) | (TLEN<<13);
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init_block[unit].rdra = kvtop(is->rd);
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init_block[unit].rlen = ((kvtop(is->rd) >> 16) & 0xff) | (RLEN<<13);
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init_block[unit].tdra = kvtop(is->td);
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init_block[unit].tlen = ((kvtop(is->td) >> 16) & 0xff) | (TLEN<<13);
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/* Set up receive ring descriptors */
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rbuf = (unsigned char *)temp;
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is->rbuf = (unsigned char *)temp;
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for (i=0; i<NRBUF; i++) {
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(rd+i)->addr = kvtop(temp);
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(rd+i)->flags= ((kvtop(temp) >> 16) & 0xff) | OWN;
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(rd+i)->bcnt = -BUFSIZE;
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(rd+i)->mcnt = 0;
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(is->rd+i)->addr = kvtop(temp);
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(is->rd+i)->flags= ((kvtop(temp) >> 16) & 0xff) | OWN;
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(is->rd+i)->bcnt = -BUFSIZE;
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(is->rd+i)->mcnt = 0;
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temp += BUFSIZE;
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}
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/* Set up transmit ring descriptors */
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tbuf = (unsigned char *)temp;
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#ifdef ISDEBUG
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printf("rd = %x,td = %x, rbuf = %x, tbuf = %x,td+1=%x\n",rd,td,rbuf,tbuf,td+1);
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is->tbuf = (unsigned char *)temp;
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#if ISDEBUG > 4
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printf("rd = %x,td = %x, rbuf = %x, tbuf = %x,td+1=%x\n",is->rd,is->td,is->rbuf,is->tbuf,is->td+1);
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#endif
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for (i=0; i<NTBUF; i++) {
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(td+i)->addr = kvtop(temp);
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(td+i)->flags= ((kvtop(temp) >> 16) & 0xff);
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(td+i)->bcnt = 0;
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(td+i)->mcnt = 0;
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(is->td+i)->addr = kvtop(temp);
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(is->td+i)->flags= ((kvtop(temp) >> 16) & 0xff);
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(is->td+i)->bcnt = 0;
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(is->td+i)->mcnt = 0;
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temp += BUFSIZE;
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}
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@ -264,41 +280,41 @@ static u_char lance_mem[MAXMEM];
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isinit(unit)
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int unit;
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{
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register struct is_softc *ns = &is_softc[unit];
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struct ifnet *ifp = &ns->ns_if;
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register struct is_softc *is = &is_softc[unit];
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struct ifnet *ifp = &is->is_if;
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int s;
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register i;
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if (ifp->if_addrlist == (struct ifaddr *)0) return;
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ns->last_rd = ns->last_td = ns->no_td = 0;
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is->last_rd = is->last_td = is->no_td = 0;
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s = splimp();
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/* Set up lance's memory area */
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init_mem();
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init_mem(unit);
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/* Stop Lance to get access to other registers */
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iswrcsr(0,STOP);
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iswrcsr(unit,0,STOP);
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/* I wish I knew what this was */
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iswrcsr(3,0);
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iswrcsr(unit,3,0);
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/* Give lance the physical address of its memory area */
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iswrcsr(1,kvtop(&init_block));
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iswrcsr(2,(kvtop(&init_block) >> 16) & 0xff);
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iswrcsr(unit,1,kvtop(&init_block[unit]));
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iswrcsr(unit,2,(kvtop(&init_block[unit]) >> 16) & 0xff);
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/* OK, let's try and initialise the Lance */
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iswrcsr(0,INIT);
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iswrcsr(unit,0,INIT);
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/* Wait for initialisation to finish */
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for(i=0; i<1000; i++){
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if (isrdcsr(0)&IDON)
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if (isrdcsr(unit,0)&IDON)
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break;
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}
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if (isrdcsr(0)&IDON) {
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if (isrdcsr(unit,0)&IDON) {
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/* Start lance */
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iswrcsr(0,STRT|IDON|INEA);
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ns->ns_if.if_flags |= IFF_RUNNING;
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iswrcsr(unit,0,STRT|IDON|INEA);
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is->is_if.if_flags |= IFF_RUNNING;
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isstart(ifp);
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}
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else
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@ -316,7 +332,8 @@ isinit(unit)
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isstart(ifp)
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struct ifnet *ifp;
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{
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register struct is_softc *ns = &is_softc[ifp->if_unit];
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int unit = ifp->if_unit;
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register struct is_softc *is = &is_softc[unit];
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struct mbuf *m0, *m;
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unsigned char *buffer;
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u_short len;
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@ -324,15 +341,15 @@ isstart(ifp)
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struct mds *cdm;
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if ((ns->ns_if.if_flags & IFF_RUNNING) == 0)
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if ((is->is_if.if_flags & IFF_RUNNING) == 0)
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return;
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do {
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cdm = (td + ns->last_td);
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cdm = (is->td + is->last_td);
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if (cdm->flags&OWN)
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return;
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IF_DEQUEUE(&ns->ns_if.if_snd, m);
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IF_DEQUEUE(&is->is_if.if_snd, m);
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if (m == 0)
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return;
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@ -341,7 +358,7 @@ isstart(ifp)
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* Copy the mbuf chain into the transmit buffer
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*/
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buffer = tbuf+(BUFSIZE*ns->last_td);
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buffer = is->tbuf+(BUFSIZE*is->last_td);
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len=0;
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for (m0=m; m != 0; m=m->m_next) {
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bcopy(mtod(m,caddr_t),buffer,m->m_len);
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@ -359,18 +376,18 @@ isstart(ifp)
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cdm->flags |= (OWN|STP|ENP);
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cdm->bcnt = -len;
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cdm->mcnt = 0;
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#ifdef ISDEBUG
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xmit_print(ns->last_td);
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#if ISDEBUG > 3
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xmit_print(unit,is->last_td);
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#endif
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iswrcsr(0,TDMD|INEA);
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if (++ns->last_td >= NTBUF)
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ns->last_td=0;
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}while(++ns->no_td < NTBUF);
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ns->no_td = NTBUF;
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ns->ns_if.if_flags |= IFF_OACTIVE;
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#ifdef ISDEBUG
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printf("no_td = %x, last_td = %x\n",ns->no_td, ns->last_td);
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iswrcsr(unit,0,TDMD|INEA);
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if (++is->last_td >= NTBUF)
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is->last_td=0;
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}while(++is->no_td < NTBUF);
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is->no_td = NTBUF;
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is->is_if.if_flags |= IFF_OACTIVE;
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#if ISDEBUG >4
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printf("no_td = %x, last_td = %x\n",is->no_td, is->last_td);
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#endif
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return(0);
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}
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@ -381,34 +398,37 @@ isstart(ifp)
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*/
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isintr(unit)
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{
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register struct is_softc *ns = &is_softc[unit];
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register struct is_softc *is = &is_softc[unit];
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u_short isr;
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while((isr=isrdcsr(0))&INTR) {
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while((isr=isrdcsr(unit,0))&INTR) {
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if (isr&ERR) {
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if (isr&BABL)
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printf("BABL\n");
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printf("is%d:BABL\n",unit);
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if (isr&CERR)
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printf("CERR\n");
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printf("is%d:CERR\n",unit);
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if (isr&MISS)
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printf("MISS\n");
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printf("is%d:MISS\n",unit);
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if (isr&MERR)
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printf("MERR\n");
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iswrcsr(0,BABL|CERR|MISS|MERR|INEA);
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}
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if (!(isr&TXON)) {
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isreset(unit);
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return(1);
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printf("is%d:MERR\n",unit);
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iswrcsr(unit,0,BABL|CERR|MISS|MERR|INEA);
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}
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if (!(isr&RXON)) {
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printf("!(isr&RXON)\n");
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isreset(unit);
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return(1);
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}
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if (!(isr&TXON)) {
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printf("!(isr&TXON)\n");
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isreset(unit);
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return(1);
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}
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if (isr&RINT) {
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isrint(unit);
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}
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if (isr&TINT) {
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iswrcsr(0,TINT|INEA);
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iswrcsr(unit,0,TINT|INEA);
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istint(unit);
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}
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}
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@ -418,15 +438,15 @@ istint(unit)
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int unit;
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{
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struct is_softc *is = &is_softc[unit];
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register struct ifnet *ifp = &is->ns_if;
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register struct ifnet *ifp = &is->is_if;
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int i,loopcount=0;
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struct mds *cdm;
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do {
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if ((i=is->last_td - is->no_td) < 0)
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i+=NTBUF;
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cdm = (td+i);
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#ifdef ISDEBUG
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cdm = (is->td+i);
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#if ISDEBUG >4
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printf("Trans cdm = %x\n",cdm);
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#endif
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if (cdm->flags&OWN) {
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@ -435,69 +455,69 @@ istint(unit)
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return;
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}
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loopcount++;
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is->ns_if.if_flags &= ~IFF_OACTIVE;
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is->is_if.if_flags &= ~IFF_OACTIVE;
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}while(--is->no_td > 0);
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isstart(ifp);
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}
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#define NEXTRDS \
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if (++rmd == NRBUF) rmd=0, cdm=rd; else ++cdm
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if (++rmd == NRBUF) rmd=0, cdm=is->rd; else ++cdm
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isrint(unit)
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int unit;
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{
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register struct is_softc *is=&is_softc[unit];
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register int rmd = is->last_rd;
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struct mds *cdm = (rd + rmd);
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struct mds *cdm = (is->rd + rmd);
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/* Out of sync with hardware, should never happen */
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if (cdm->flags & OWN) {
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printf("is0 error: out of sync\n");
|
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iswrcsr(0,RINT|INEA);
|
||||
printf("is%d error: out of sync\n",unit);
|
||||
iswrcsr(unit,0,RINT|INEA);
|
||||
return;
|
||||
}
|
||||
|
||||
/* Process all buffers with valid data */
|
||||
while (!(cdm->flags&OWN)) {
|
||||
/* Clear interrupt to avoid race condition */
|
||||
iswrcsr(0,RINT|INEA);
|
||||
iswrcsr(unit,0,RINT|INEA);
|
||||
if (cdm->flags&ERR) {
|
||||
if (cdm->flags&FRAM)
|
||||
printf("FRAM\n");
|
||||
printf("is%d:FRAM\n",unit);
|
||||
if (cdm->flags&OFLO)
|
||||
printf("OFLO\n");
|
||||
printf("is%d:OFLO\n",unit);
|
||||
if (cdm->flags&CRC)
|
||||
printf("CRC\n");
|
||||
printf("is%d:CRC\n",unit);
|
||||
if (cdm->flags&RBUFF)
|
||||
printf("RBUFF\n");
|
||||
printf("is%d:RBUFF\n",unit);
|
||||
}else
|
||||
if (cdm->flags&(STP|ENP) != (STP|ENP)) {
|
||||
do {
|
||||
iswrcsr(0,RINT|INEA);
|
||||
iswrcsr(unit,0,RINT|INEA);
|
||||
cdm->mcnt = 0;
|
||||
cdm->flags |= OWN;
|
||||
NEXTRDS;
|
||||
}while (!(cdm->flags&(OWN|ERR|STP|ENP)));
|
||||
is->last_rd = rmd;
|
||||
printf("Chained buffer\n");
|
||||
printf("is%d:Chained buffer\n",unit);
|
||||
if ((cdm->flags & (OWN|ERR|STP|ENP)) != ENP) {
|
||||
isreset(unit);
|
||||
return;
|
||||
}
|
||||
}else
|
||||
{
|
||||
#ifdef ISDEBUG
|
||||
recv_print(is->last_rd);
|
||||
#if ISDEBUG >2
|
||||
recv_print(unit,is->last_rd);
|
||||
#endif
|
||||
isread(is,rbuf+(BUFSIZE*rmd),cdm->mcnt);
|
||||
isread(is,is->rbuf+(BUFSIZE*rmd),cdm->mcnt);
|
||||
}
|
||||
|
||||
cdm->flags |= OWN;
|
||||
cdm->mcnt = 0;
|
||||
NEXTRDS;
|
||||
#ifdef ISDEBUG
|
||||
#if ISDEBUG >4
|
||||
printf("is->last_rd = %x, cdm = %x\n",is->last_rd,cdm);
|
||||
#endif
|
||||
} /* while */
|
||||
@ -508,8 +528,8 @@ isrint(unit)
|
||||
* Pass a packet to the higher levels.
|
||||
* We deal with the trailer protocol here.
|
||||
*/
|
||||
isread(ns, buf, len)
|
||||
register struct is_softc *ns;
|
||||
isread(is, buf, len)
|
||||
register struct is_softc *is;
|
||||
char *buf;
|
||||
int len;
|
||||
{
|
||||
@ -545,10 +565,10 @@ isread(ns, buf, len)
|
||||
* information to be at the front, but we still have to drop
|
||||
* the type and length which are at the front of any trailer data.
|
||||
*/
|
||||
m = isget(buf, len, off, &ns->ns_if);
|
||||
m = isget(buf, len, off, &is->is_if);
|
||||
if (m == 0) return;
|
||||
|
||||
ether_input(&ns->ns_if, eh, m);
|
||||
ether_input(&is->is_if, eh, m);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -641,7 +661,8 @@ isioctl(ifp, cmd, data)
|
||||
caddr_t data;
|
||||
{
|
||||
register struct ifaddr *ifa = (struct ifaddr *)data;
|
||||
struct is_softc *ns = &is_softc[ifp->if_unit];
|
||||
int unit = ifp->if_unit;
|
||||
struct is_softc *is = &is_softc[unit];
|
||||
struct ifreq *ifr = (struct ifreq *)data;
|
||||
int s = splimp(), error = 0;
|
||||
|
||||
@ -663,10 +684,10 @@ isioctl(ifp, cmd, data)
|
||||
#ifdef NS
|
||||
case AF_NS:
|
||||
{
|
||||
register struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr);
|
||||
register struct is_addr *ina = &(IA_SNS(ifa)->sns_addr);
|
||||
|
||||
if (ns_nullhost(*ina))
|
||||
ina->x_host = *(union ns_host *)(ns->ns_addr);
|
||||
ina->x_host = *(union ns_host *)(is->is_addr);
|
||||
else {
|
||||
/*
|
||||
* The manual says we can't change the address
|
||||
@ -675,7 +696,7 @@ isioctl(ifp, cmd, data)
|
||||
*/
|
||||
ifp->if_flags &= ~IFF_RUNNING;
|
||||
bcopy((caddr_t)ina->x_host.c_host,
|
||||
(caddr_t)ns->ns_addr, sizeof(ns->ns_addr));
|
||||
(caddr_t)is->is_addr, sizeof(is->is_addr));
|
||||
}
|
||||
isinit(ifp->if_unit); /* does ne_setaddr() */
|
||||
break;
|
||||
@ -691,7 +712,7 @@ isioctl(ifp, cmd, data)
|
||||
if ((ifp->if_flags & IFF_UP) == 0 &&
|
||||
ifp->if_flags & IFF_RUNNING) {
|
||||
ifp->if_flags &= ~IFF_RUNNING;
|
||||
iswrcsr(0,STOP);
|
||||
iswrcsr(unit,0,STOP);
|
||||
} else if (ifp->if_flags & IFF_UP &&
|
||||
(ifp->if_flags & IFF_RUNNING) == 0)
|
||||
isinit(ifp->if_unit);
|
||||
@ -699,8 +720,8 @@ isioctl(ifp, cmd, data)
|
||||
|
||||
#ifdef notdef
|
||||
case SIOCGHWADDR:
|
||||
bcopy((caddr_t)ns->ns_addr, (caddr_t) &ifr->ifr_data,
|
||||
sizeof(ns->ns_addr));
|
||||
bcopy((caddr_t)is->is_addr, (caddr_t) &ifr->ifr_data,
|
||||
sizeof(is->is_addr));
|
||||
break;
|
||||
#endif
|
||||
|
||||
@ -711,36 +732,38 @@ isioctl(ifp, cmd, data)
|
||||
return (error);
|
||||
}
|
||||
|
||||
recv_print(no)
|
||||
int no;
|
||||
recv_print(unit,no)
|
||||
int unit,no;
|
||||
{
|
||||
register struct is_softc *is=&is_softc[unit];
|
||||
struct mds *rmd;
|
||||
int len,i;
|
||||
|
||||
rmd = (rd+no);
|
||||
rmd = (is->rd+no);
|
||||
len = rmd->mcnt;
|
||||
printf("Receive buffer %d, len = %d\n",no,len);
|
||||
printf("Status %x\n",isrdcsr(0));
|
||||
printf("is%d: Receive buffer %d, len = %d\n",unit,no,len);
|
||||
printf("is%d: Status %x\n",unit,isrdcsr(unit,0));
|
||||
for (i=0; i<len; i++)
|
||||
printf("%x ",*(rbuf+(BUFSIZE*no)+i));
|
||||
printf("%x ",*(is->rbuf+(BUFSIZE*no)+i));
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
xmit_print(no)
|
||||
int no;
|
||||
xmit_print(unit,no)
|
||||
int unit,no;
|
||||
{
|
||||
register struct is_softc *is=&is_softc[unit];
|
||||
struct mds *rmd;
|
||||
int i;
|
||||
u_short len;
|
||||
|
||||
rmd = (td+no);
|
||||
rmd = (is->td+no);
|
||||
len = -(rmd->bcnt);
|
||||
printf("Transmit buffer %d, len = %d\n",no,len);
|
||||
printf("Status %x\n",isrdcsr(0));
|
||||
printf("is%d:Transmit buffer %d, len = %d\n",unit,no,len);
|
||||
printf("is%d:Status %x\n",unit,isrdcsr(unit,0));
|
||||
printf("addr %x, flags %x, bcnt %x, mcnt %x\n",
|
||||
rmd->addr,rmd->flags,rmd->bcnt,rmd->mcnt);
|
||||
for (i=0; i<len; i++)
|
||||
printf("%x ",*(tbuf+(BUFSIZE*no)+i));
|
||||
printf("%x ",*(is->tbuf+(BUFSIZE*no)+i));
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user