When I use the functions below in my ether2000.c I get ne2000reset: undefined: ioalloc in ne2000reset ne2000reset: undefined: iofree in ne2000reset...
Dave On 4/17/06, Lluís Batlle i Rossell <[EMAIL PROTECTED]> wrote: > Hi, > I'm using qemu for the vmware playground described in the wiki > (http://cm.bell-labs.com/wiki/plan9/vmware_playground_for_plan9/index.html). > Although I found some flaws in the wiki page (aux/timesync _-n_ <host>, > for instance, or ip/dhcpd ip/tftpd in the same line), I think I got the > 9pccpuf kernel running fine - I explain here some of the problems I had. > > I had to change the ether2000.c file for the pxeload loader in order to > get a working pxe boot (qemu has a pnp or pci ne2000). I attach the new > ether2000.c file for /sys/src/boot/pc/ether2000.c. I simply took the 9 > kernel's ether2000.c, corrected the locations of the include files, > removed the 'static' of ne2000reset(), and removed the function > ether2000link() (if I recall everything). I really got surprised when > the new 9pxeload worked. > > In order to get the "9pccpu" kernel in a second host working, I had to > use a qemu floppy image together with the zero-filled small hd. I > manually created an msdos filesystem there, with a file "plan9.nvr" > (thanks [EMAIL PROTECTED]) with silly data on it (using mkfs.msdos in Linux). > If I didn't have that floppy, and only had a hard disk WITHOUT a plan9 > partition/nvram part, the 9pccpu kernel hanged after asking for the > root. After getting the first boot done, I partitioned the hard disk, > prepared the nvram part, and took off the "floppy" on the next boot. > Although the author says the HD vmware file could be 1KiB long, I needed > at least 512KiB long, because that's the size of a cylinder according to > disk/fdisk (and less than that is not allowed as I experienced). > > Among my many unsuccesful tries to get everything done as described in > the wiki, it was dark for me the "Set up the nvram", because I thought I > should write the lines suggested into the nvram partition. And I also > expected that to work, so the rebooting's "error in nvram key" made me mad. > > There are other details that I didn't understood at first from the wiki > page, but it would be too a matter of opinion. As an example: what's > "First boot"? Should I reboot? As 'bootes'? > > So, here you have comments from a 'newbie'. I hope they help in some sense. > > Thanks! > > > #include "u.h" > #include "lib.h" > #include "mem.h" > #include "dat.h" > #include "fns.h" > #include "io.h" > #include "error.h" > > #include "etherif.h" > #include "ether8390.h" > > /* > * Driver written for the 'Notebook Computer Ethernet LAN Adapter', > * a plug-in to the bus-slot on the rear of the Gateway NOMAD 425DXL > * laptop. The manual says NE2000 compatible. > * The interface appears to be pretty well described in the National > * Semiconductor Local Area Network Databook (1992) as one of the > * AT evaluation cards. > * > * The NE2000 is really just a DP8390[12] plus a data port > * and a reset port. > */ > enum { > Data = 0x10, /* offset from I/O base of data port > */ > Reset = 0x1F, /* offset from I/O base of reset port > */ > }; > > typedef struct Ctlr Ctlr; > typedef struct Ctlr { > Pcidev* pcidev; > Ctlr* next; > int active; > } Ctlr; > > static Ctlr* ctlrhead; > static Ctlr* ctlrtail; > > static struct { > char* name; > int id; > } ne2000pci[] = { > { "Realtek 8029", (0x8029<<16)|0x10EC, }, > { "Winbond 89C940", (0x0940<<16)|0x1050, }, > { nil }, > }; > > static Ctlr* > ne2000match(Ether* edev, int id) > { > int port; > Pcidev *p; > Ctlr *ctlr; > > /* > * Any adapter matches if no edev->port is supplied, > * otherwise the ports must match. > */ > for(ctlr = ctlrhead; ctlr != nil; ctlr = ctlr->next){ > if(ctlr->active) > continue; > p = ctlr->pcidev; > if(((p->did<<16)|p->vid) != id) > continue; > port = p->mem[0].bar & ~0x01; > if(edev->port != 0 && edev->port != port) > continue; > > /* > * It suffices to fill these in, > * the rest is gleaned from the card. > */ > edev->port = port; > edev->irq = p->intl; > > ctlr->active = 1; > > return ctlr; > } > > return nil; > } > > static void > ne2000pnp(Ether* edev) > { > int i, id; > Pcidev *p; > Ctlr *ctlr; > > /* > * Make a list of all ethernet controllers > * if not already done. > */ > if(ctlrhead == nil){ > p = nil; > while(p = pcimatch(p, 0, 0)){ > if(p->ccrb != 0x02 || p->ccru != 0) > continue; > ctlr = malloc(sizeof(Ctlr)); > ctlr->pcidev = p; > > if(ctlrhead != nil) > ctlrtail->next = ctlr; > else > ctlrhead = ctlr; > ctlrtail = ctlr; > } > } > > /* > * Is it a card with an unrecognised vid+did? > * Normally a search is made through all the found controllers > * for one which matches any of the known vid+did pairs. > * If a vid+did pair is specified a search is made for that > * specific controller only. > */ > id = 0; > for(i = 0; i < edev->nopt; i++){ > if(cistrncmp(edev->opt[i], "id=", 3) == 0) > id = strtol(&edev->opt[i][3], nil, 0); > } > > if(id != 0) > ne2000match(edev, id); > else for(i = 0; ne2000pci[i].name; i++){ > if(ne2000match(edev, ne2000pci[i].id) != nil) > break; > } > } > > int > ne2000reset(Ether* edev) > { > static int first; > ushort buf[16]; > ulong port; > Dp8390 *dp8390; > int i; > uchar ea[Eaddrlen]; > > if(edev->port == 0) > ne2000pnp(edev); > > /* > * Set up the software configuration. > * Use defaults for irq, mem and size > * if not specified. > * Must have a port, no more default. > */ > if(edev->port == 0) > return -1; > if(edev->irq == 0) > edev->irq = 2; > if(edev->mem == 0) > edev->mem = 0x4000; > if(edev->size == 0) > edev->size = 16*1024; > port = edev->port; > > if(ioalloc(edev->port, 0x20, 0, "ne2000") < 0) > return -1; > > edev->ctlr = malloc(sizeof(Dp8390)); > dp8390 = edev->ctlr; > dp8390->width = 2; > dp8390->ram = 0; > > dp8390->port = port; > dp8390->data = port+Data; > > dp8390->tstart = HOWMANY(edev->mem, Dp8390BufSz); > dp8390->pstart = dp8390->tstart + HOWMANY(sizeof(Etherpkt), > Dp8390BufSz); > dp8390->pstop = dp8390->tstart + HOWMANY(edev->size, Dp8390BufSz); > > dp8390->dummyrr = 1; > for(i = 0; i < edev->nopt; i++){ > if(strcmp(edev->opt[i], "nodummyrr")) > continue; > dp8390->dummyrr = 0; > break; > } > > /* > * Reset the board. This is done by doing a read > * followed by a write to the Reset address. > */ > buf[0] = inb(port+Reset); > delay(2); > outb(port+Reset, buf[0]); > delay(2); > > /* > * Init the (possible) chip, then use the (possible) > * chip to read the (possible) PROM for ethernet address > * and a marker byte. > * Could just look at the DP8390 command register after > * initialisation has been tried, but that wouldn't be > * enough, there are other ethernet boards which could > * match. > */ > dp8390reset(edev); > memset(buf, 0, sizeof(buf)); > dp8390read(dp8390, buf, 0, sizeof(buf)); > if((buf[0x0E] & 0xFF) != 0x57 || (buf[0x0F] & 0xFF) != 0x57){ > iofree(edev->port); > free(edev->ctlr); > return -1; > } > > /* > * Stupid machine. Shorts were asked for, > * shorts were delivered, although the PROM is a byte array. > * Set the ethernet address. > */ > memset(ea, 0, Eaddrlen); > if(memcmp(ea, edev->ea, Eaddrlen) == 0){ > for(i = 0; i < sizeof(edev->ea); i++) > edev->ea[i] = buf[i]; > } > dp8390setea(edev); > > return 0; > } > > > >
