From 78ee7d5717807e6ac779293d0d3c78341de6130a Mon Sep 17 00:00:00 2001
From: "Konstantin Kirik (snegovick)" <snegovick@uprojects.org>
Date: Sun, 28 Dec 2025 12:27:31 +0300
Subject: Move existing boards into subdits split per arch

---
 os/pc/etherrhine.c | 734 -----------------------------------------------------
 1 file changed, 734 deletions(-)
 delete mode 100644 os/pc/etherrhine.c

(limited to 'os/pc/etherrhine.c')

diff --git a/os/pc/etherrhine.c b/os/pc/etherrhine.c
deleted file mode 100644
index 5d25a6f0..00000000
--- a/os/pc/etherrhine.c
+++ /dev/null
@@ -1,734 +0,0 @@
- /*
-	Via Rhine driver, written for VT6102.
-	Uses the ethermii to control PHY.
-
-	Currently always copies on both, tx and rx.
-	rx side could be copy-free, and tx-side might be made
-	(almost) copy-free by using (possibly) two descriptors (if it allows
-	arbitrary tx lengths, which it should..): first for alignment and
-	second for rest of the frame. Rx-part should be worth doing.
-*/
-
-#include "u.h"
-#include "../port/lib.h"
-#include "mem.h"
-#include "dat.h"
-#include "fns.h"
-#include "io.h"
-#include "../port/error.h"
-#include "../port/netif.h"
-#include "etherif.h"
-
-#include "ethermii.h"
-
-typedef struct Desc Desc;
-typedef struct Ctlr Ctlr;
-
-enum {
-	Ntxd = 16,
-	Nrxd = 64,
-	Nwait = 50,
-	Ntxstats = 9,
-	Nrxstats = 8,
-	BIGSTR = 8192,
-};
-
-struct Desc {
-	ulong stat;
-	ulong size;
-	ulong addr;
-	ulong next;
-	char *buf;
-	ulong pad[3];
-};
-
-struct Ctlr {
-	Pcidev *pci;
-	int attached;
-	int txused;
-	int txhead;
-	int txtail;
-	int rxtail;
-	ulong port;
-
-	Mii mii;
-
-	ulong txstats[Ntxstats];
-	ulong rxstats[Nrxstats];
-
-	Desc *txd;	/* wants to be aligned on 16-byte boundary */
-	Desc *rxd;
-
-	QLock attachlck;
-	Lock lock;
-};
-
-#define ior8(c, r)	(inb((c)->port+(r)))
-#define ior16(c, r)	(ins((c)->port+(r)))
-#define ior32(c, r)	(inl((c)->port+(r)))
-#define iow8(c, r, b)	(outb((c)->port+(r), (int)(b)))
-#define iow16(c, r, w)	(outs((c)->port+(r), (ushort)(w)))
-#define iow32(c, r, l)	(outl((c)->port+(r), (ulong)(l)))
-
-enum Regs {
-	Eaddr = 0x0,
-	Rcr = 0x6,
-	Tcr = 0x7,
-	Cr = 0x8,
-	Isr = 0xc,
-	Imr = 0xe,
-	McastAddr = 0x10,
-	RxdAddr = 0x18,
-	TxdAddr = 0x1C,
-	Bcr = 0x6e,
-	RhineMiiPhy = 0x6C,
-	RhineMiiSr = 0x6D,
-	RhineMiiCr = 0x70,
-	RhineMiiAddr = 0x71,
-	RhineMiiData = 0x72,
-	Eecsr = 0x74,
-	ConfigB = 0x79,
-	ConfigD = 0x7B,
-	MiscCr = 0x80,
-	HwSticky = 0x83,
-	MiscIsr = 0x84,
-	MiscImr = 0x86,
-	WolCrSet = 0xA0,
-	WolCfgSet = 0xA1,
-	WolCgSet = 0xA3,
-	WolCrClr = 0xA4,
-	PwrCfgClr = 0xA5,
-	WolCgClr = 0xA7,
-};
-
-enum Rcrbits {
-	RxErrX = 1<<0,
-	RxSmall = 1<<1,
-	RxMcast = 1<<2,
-	RxBcast = 1<<3,
-	RxProm = 1<<4,
-	RxFifo64 = 0<<5, RxFifo32 = 1<<5, RxFifo128 = 2<<5, RxFifo256 = 3<<5,
-	RxFifo512 = 4<<5, RxFifo768 = 5<<5, RxFifo1024 = 6<<5,
-	RxFifoStoreForward = 7<<5,
-};
-
-enum Tcrbits {
-	TxLoopback0 = 1<<1,
-	TxLoopback1 = 1<<2,
-	TxBackoff = 1<<3,
-	TxFifo128 = 0<<5, TxFifo256 = 1<<5, TxFifo512 = 2<<5, TxFifo1024 = 3<<5,
-	TxFifoStoreForward = 7<<5,
-};
-
-enum Crbits {
-	Init = 1<<0,
-	Start = 1<<1,
-	Stop = 1<<2,
-	RxOn = 1<<3,
-	TxOn = 1<<4,
-	Tdmd = 1<<5,
-	Rdmd = 1<<6,
-	EarlyRx = 1<<8,
-	Reserved0 = 1<<9,
-	FullDuplex = 1<<10,
-	NoAutoPoll = 1<<11,
-	Reserved1 = 1<<12,
-	Tdmd1 = 1<<13,
-	Rdmd1 = 1<<14,
-	Reset = 1<<15,
-};
-
-enum Isrbits {
-	RxOk = 1<<0,
-	TxOk = 1<<1,
-	RxErr = 1<<2,
-	TxErr = 1<<3,
-	TxBufUdf = 1<<4,
-	RxBufLinkErr = 1<<5,
-	BusErr = 1<<6,
-	CrcOvf = 1<<7,
-	EarlyRxInt = 1<<8,
-	TxFifoUdf = 1<<9,
-	RxFifoOvf = 1<<10,
-	TxPktRace = 1<<11,
-	NoRxbuf = 1<<12,
-	TxCollision = 1<<13,
-	PortCh = 1<<14,
-	GPInt = 1<<15
-};
-
-enum Bcrbits {
-	Dma32 = 0<<0, Dma64 = 1<<0, Dma128 = 2<<0,
-	Dma256 = 3<<0, Dma512 = 4<<0, Dma1024 = 5<<0,
-	DmaStoreForward = 7<<0,
-	DupRxFifo0 = 1<<3, DupRxFifo1 = 1<<4, DupRxFifo2 = 1<<5,
-	ExtraLed = 1<<6,
-	MediumSelect = 1<<7,
-	PollTimer0 = 1<<8, PollTimer1 = 1<<9, PollTimer2 = 1<<10,
-	DupTxFifo0 = 1<<11, DupTxFifo1 = 1<<12, DupTxFifo2 = 1<<13,
-};
-
-enum Eecsrbits {
-	EeAutoLoad = 1<<5,
-};
-
-enum MiscCrbits {
-	Timer0Enable= 1<<0,
-	Timer0Suspend = 1<<1,
-	HalfDuplexFlowControl = 1<<2,
-	FullDuplexFlowControl = 1<<3,
-	Timer1Enable = 1<<8,
-	ForceSoftReset = 1<<14,
-};
-
-enum HwStickybits {
-	StickyDS0 = 1<<0,
-	StickyDS1 = 1<<1,
-	WOLEna = 1<<2,
-	WOLStat = 1<<3,
-};
-
-enum WolCgbits {
-	PmeOvr = 1<<7,
-};
-
-enum Descbits {
-	OwnNic = 1<<31,		/* stat */
-	TxAbort = 1<<8,		/* stat */
-	TxError = 1<<15,		/* stat */
-	RxChainbuf = 1<<10,	/* stat */
-	RxChainStart = 1<<9,	/* stat */
-	RxChainEnd = 1<<8,		/* stat */
-	Chainbuf = 1<<15,		/* size rx & tx*/
-	TxDisableCrc = 1<<16,	/* size */
-	TxChainStart = 1<<21,	/* size */
-	TxChainEnd = 1<<22,	/* size */
-	TxInt = 1<<23,			/* size */
-};
-
-enum ConfigDbits {
-	BackoffOptional = 1<<0,
-	BackoffAMD = 1<<1,
-	BackoffDEC = 1<<2,
-	BackoffRandom = 1<<3,
-	PmccTestMode = 1<<4,
-	PciReadlineCap = 1<<5,
-	DiagMode = 1<<6,
-	MmioEnable = 1<<7,
-};
-
-enum ConfigBbits {
-	LatencyTimer = 1<<0,
-	WriteWaitState = 1<<1,
-	ReadWaitState = 1<<2,
-	RxArbit = 1<<3,
-	TxArbit = 1<<4,
-	NoMemReadline = 1<<5,
-	NoParity = 1<<6,
-	NoTxQueuing = 1<<7,
-};
-
-enum RhineMiiCrbits {
-	Mdc = 1<<0,
-	Mdi = 1<<1,
-	Mdo = 1<<2,
-	Mdout = 1<<3,
-	Mdpm = 1<<4,
-	Wcmd = 1<<5,
-	Rcmd = 1<<6,
-	Mauto = 1<<7,
-};
-
-enum RhineMiiSrbits {
-	Speed10M = 1<<0,
-	LinkFail = 1<<1,
-	PhyError = 1<<3,
-	DefaultPhy = 1<<4,
-	ResetPhy = 1<<7,
-};
-
-enum RhineMiiAddrbits {
-	Mdone = 1<<5,
-	Msrcen = 1<<6,
-	Midle = 1<<7,
-};
-
-static char *
-txstatnames[Ntxstats] = {
-	"aborts (excess collisions)",
-	"out of window collisions",
-	"carrier sense losses",
-	"fifo underflows",
-	"invalid descriptor format or underflows",
-	"system errors",
-	"reserved",
-	"transmit errors",
-	"collisions",
-};
-
-static char *
-rxstatnames[Nrxstats] = {
-	"receiver errors",
-	"crc errors",
-	"frame alignment errors",
-	"fifo overflows",
-	"long packets",
-	"run packets",
-	"system errors",
-	"buffer underflows",
-};
-
-static void
-attach(Ether *edev)
-{
-	Ctlr *ctlr;
-	Desc *txd, *rxd, *td, *rd;
-	Mii *mi;
-	MiiPhy *phy;
-	int i, s;
-	
-	ctlr = edev->ctlr;
-	qlock(&ctlr->attachlck);
-	if (ctlr->attached == 0) {
-		txd = ctlr->txd;
-		rxd = ctlr->rxd;
-		for (i = 0; i < Ntxd; ++i) {
-			td = &txd[i];
-			td->next = PCIWADDR(&txd[(i+1) % Ntxd]);
-			td->buf = xspanalloc(sizeof(Etherpkt)+4, 4, 0);
-			td->addr = PCIWADDR(td->buf);
-			td->size = 0;
-			coherence();
-			td->stat = 0;
-		}
-		for (i = 0; i < Nrxd; ++i) {
-			rd = &rxd[i];
-			rd->next = PCIWADDR(&rxd[(i+1) % Nrxd]);
-			rd->buf = xspanalloc(sizeof(Etherpkt)+4, 4, 0);
-			rd->addr = PCIWADDR(rd->buf);
-			rd->size = sizeof(Etherpkt)+4;
-			coherence();
-			rd->stat = OwnNic;
-		}
-
-		ctlr->txhead = ctlr->txtail = ctlr->rxtail = 0;
-		mi = &ctlr->mii;
-		miistatus(mi);
-		phy = mi->curphy;
-		s = splhi();
-		iow32(ctlr, TxdAddr, PCIWADDR(&txd[0]));
-		iow32(ctlr, RxdAddr, PCIWADDR(&rxd[0]));
-		iow16(ctlr, Cr, (phy->fd ? FullDuplex : 0) | NoAutoPoll | TxOn | RxOn | Start | Rdmd);
-		iow16(ctlr, Isr, 0xFFFF);
-		iow16(ctlr, Imr, 0xFFFF);
-		iow8(ctlr, MiscIsr, 0xFF);
-		iow8(ctlr, MiscImr, ~(3<<5));
-		splx(s);
-	}
-	ctlr->attached++;
-	qunlock(&ctlr->attachlck);
-}
-
-static void
-txstart(Ether *edev)
-{
-	Ctlr *ctlr;
-	Desc *txd, *td;
-	Block *b;
-	int i, txused, n;
-	ulong size;
-
-	ctlr = edev->ctlr;
-
-	txd = ctlr->txd;
-	i = ctlr->txhead;
-	txused = ctlr->txused;
-	n = 0;
-	while (txused < Ntxd) {
-		if ((b = qget(edev->oq)) == nil)
-			break;
-
-		td = &txd[i];
-
-		size = BLEN(b);
-		memmove(td->buf, b->rp, size);
-		freeb(b);
-		td->size = size | TxChainStart | TxChainEnd | TxInt; /* could reduce number of ints here */
-		coherence();
-		td->stat = OwnNic;
-		i = (i + 1) % Ntxd;
-		txused++;
-		n++;
-	}
-	if (n)
-		iow16(ctlr, Cr, ior16(ctlr, Cr) | Tdmd);
-
-	ctlr->txhead = i;
-	ctlr->txused = txused;
-}
-
-static void
-transmit(Ether *edev)
-{
-	Ctlr *ctlr;
-	ctlr = edev->ctlr;
-	ilock(&ctlr->lock);
-	txstart(edev);
-	iunlock(&ctlr->lock);
-}
-
-static void
-txcomplete(Ether *edev)
-{
-	Ctlr *ctlr;
-	Desc *txd, *td;
-	int i, txused, j;
-	ulong stat;
-
-	ctlr = edev->ctlr;
- 	txd = ctlr->txd;
-	txused = ctlr->txused;
-	i = ctlr->txtail;
-	while (txused > 0) {
-		td = &txd[i];
-		stat = td->stat;
-
-		if (stat & OwnNic)
-			break;
-
-		ctlr->txstats[Ntxstats-1] += stat & 0xF;
-		for (j = 0; j < Ntxstats-1; ++j)
-			if (stat & (1<<(j+8)))
-				ctlr->txstats[j]++;
-
-		i = (i + 1) % Ntxd;
-		txused--;
-	}
-	ctlr->txused = txused;
-	ctlr->txtail = i;
-
-	if (txused <= Ntxd/2)
-		txstart(edev);
-}
-
-static void
-interrupt(Ureg *, void *arg)
-{
-	Ether *edev;
-	Ctlr *ctlr;
-	ushort  isr, misr;
-	ulong stat;
-	Desc *rxd, *rd;
-	int i, n, j;
-
-	edev = (Ether*)arg;
-	ctlr = edev->ctlr;
-	iow16(ctlr, Imr, 0);
-	isr = ior16(ctlr, Isr);
-	iow16(ctlr, Isr, 0xFFFF);
-	misr = ior16(ctlr, MiscIsr) & ~(3<<5); /* don't care about used defined ints */
-
-	if (isr & RxOk) {
-		Block *b;
-		int size;
-		rxd = ctlr->rxd;
-		i = ctlr->rxtail;
-
-		n = 0;
-		while ((rxd[i].stat & OwnNic) == 0) {
-			rd = &rxd[i];
-			stat = rd->stat;
-			for (j = 0; j < Nrxstats; ++j)
-				if (stat & (1<<j))
-					ctlr->rxstats[j]++;
-
-			if (stat & 0xFF)
-				iprint("rx: %lux\n", stat & 0xFF);
-
-			size = ((rd->stat>>16) & 2047) - 4;
-			b = iallocb(sizeof(Etherpkt));
-			memmove(b->wp, rd->buf, size);
-			b->wp += size;
-			etheriq(edev, b, 1);
-			rd->size = sizeof(Etherpkt)+4;
-			coherence();
-			rd->stat = OwnNic;
-			i = (i + 1) % Nrxd;
-			n++;
-		}
-		if (n)
-			iow16(ctlr, Cr, ior16(ctlr, Cr) | Rdmd);
-		ctlr->rxtail = i;
-		isr &= ~RxOk;
-	}
-	if (isr & TxOk) {
-		txcomplete(edev);
-		isr &= ~TxOk;
-	}
-	if (isr | misr)
-		iprint("etherrhine: unhandled irq(s). isr:%x misr:%x\n", isr, misr);
-
-	iow16(ctlr, Imr, 0xFFFF);
-}
-
-static void
-promiscuous(void *arg, int enable)
-{
-	Ether *edev;
-	Ctlr *ctlr;
-
-	edev = arg;
-	ctlr = edev->ctlr;
-	ilock(&ctlr->lock);
-	iow8(ctlr, Rcr, (ior8(ctlr, Rcr) & ~(RxProm|RxBcast)) |
-		(enable ? RxProm : RxBcast));
-	iunlock(&ctlr->lock);
-}
-
-static int
-miiread(Mii *mii, int phy, int reg)
-{
-	Ctlr *ctlr;
-	int n;
-
-	ctlr = mii->ctlr;
-	
-	n = Nwait;
-	while (n-- && ior8(ctlr, RhineMiiCr) & (Rcmd | Wcmd))
-		microdelay(1);
-	if (n == Nwait)
-		iprint("etherrhine: miiread: timeout\n");
-
-	iow8(ctlr, RhineMiiCr, 0);
-	iow8(ctlr, RhineMiiPhy, phy);
-	iow8(ctlr, RhineMiiAddr, reg);
-	iow8(ctlr, RhineMiiCr, Rcmd);
-
-	n = Nwait;
-	while (n-- && ior8(ctlr, RhineMiiCr) & Rcmd)
-		microdelay(1);
-	if (n == Nwait)
-		iprint("etherrhine: miiread: timeout\n");
-
-	n = ior16(ctlr, RhineMiiData);
-
-	return n;
-}
-
-static int
-miiwrite(Mii *mii, int phy, int reg, int data)
-{
-	int n;
-	Ctlr *ctlr;
-
-	ctlr = mii->ctlr;
-
-	n = Nwait;
-	while (n-- && ior8(ctlr, RhineMiiCr) & (Rcmd | Wcmd))
-		microdelay(1);
-	if (n == Nwait)
-		iprint("etherrhine: miiwrite: timeout\n");
-
-	iow8(ctlr, RhineMiiCr, 0);
-	iow8(ctlr, RhineMiiPhy, phy);
-	iow8(ctlr, RhineMiiAddr, reg);
-	iow16(ctlr, RhineMiiData, data);
-	iow8(ctlr, RhineMiiCr, Wcmd);
-
-	n = Nwait;
-	while (n-- && ior8(ctlr, RhineMiiCr) & Wcmd)
-		microdelay(1);
-	if (n == Nwait)
-		iprint("etherrhine: miiwrite: timeout\n");
-
-	return 0;
-}
-
-/* multicast already on, don't need to do anything */
-static void
-multicast(void*, uchar*, int)
-{
-}
-
-static void
-shutdown(Ether *edev)
-{
-	int i;
-	Ctlr *ctlr = edev->ctlr;
-
-	ilock(&ctlr->lock);
-	pcisetbme(ctlr->pci);
-
-	iow16(ctlr, Cr, ior16(ctlr, Cr) | Stop);
-	iow16(ctlr, Cr, ior16(ctlr, Cr) | Reset);
-
-	for (i = 0; i < Nwait; ++i) {
-		if ((ior16(ctlr, Cr) & Reset) == 0)
-			break;
-		delay(5);
-	}
-	if (i == Nwait)
-		iprint("etherrhine: reset timeout\n");
-	iunlock(&ctlr->lock);
-}
-
-static void
-init(Ether *edev)
-{
-	Ctlr *ctlr;
-	MiiPhy *phy;
-	int i;
-
-	shutdown(edev);
-
-	ctlr = edev->ctlr;
-	ilock(&ctlr->lock);
-	iow8(ctlr, Eecsr, ior8(ctlr, Eecsr) | EeAutoLoad);
-	for (i = 0; i < Nwait; ++i) {
-		if ((ior8(ctlr, Eecsr) & EeAutoLoad) == 0)
-			break;
-		delay(5);
-	}
-	if (i == Nwait)
-		iprint("etherrhine: eeprom autoload timeout\n");
-
-	for (i = 0; i < Eaddrlen; ++i)
-		edev->ea[i] = ior8(ctlr, Eaddr + i);
-
-	ctlr->mii.mir = miiread;
-	ctlr->mii.miw = miiwrite;
-	ctlr->mii.ctlr = ctlr;
-
-	if(mii(&ctlr->mii, ~0) == 0 || ctlr->mii.curphy == nil){
-		iprint("etherrhine: init mii failure\n");
-		return;
-	}
-	for (i = 0; i < NMiiPhy; ++i)
-		if (ctlr->mii.phy[i])
-			if (ctlr->mii.phy[i]->oui != 0xFFFFF)
-				ctlr->mii.curphy = ctlr->mii.phy[i];
-
-	miistatus(&ctlr->mii);
-	phy = ctlr->mii.curphy;
-	edev->mbps = phy->speed;
-
-	iow16(ctlr, Imr, 0);
-	iow16(ctlr, Cr, ior16(ctlr, Cr) | Stop);
-	iow8(ctlr, Rcr, ior8(ctlr, Rcr) | RxMcast);
-
-	iunlock(&ctlr->lock);
-}
-
-static Pcidev *
-rhinematch(ulong)
-{
-	static int nrhines = 0;
-	int nfound = 0;
-	Pcidev *p = nil;
-
-	while (p = pcimatch(p, 0x1106, 0))
-		if (p->did == 0x3065)
-			if (++nfound > nrhines) {
-				nrhines++;
-				break;
-			}
-	return p;
-}
-static long
-ifstat(Ether* edev, void* a, long n, ulong offset)
-{
-	int l = 0, i;
-	char *p;
-	Ctlr *ctlr;
-	ctlr = edev->ctlr;
-	p = malloc(BIGSTR);
-
-	for (i = 0; i < Ntxstats; ++i)
-		if (txstatnames[i])
-			l += snprint(p+l, BIGSTR - l, "tx: %s: %lud\n", txstatnames[i], ctlr->txstats[i]);
-
-	for (i = 0; i < Nrxstats; ++i)
-		if (rxstatnames[i])
-			l += snprint(p+l, BIGSTR - l, "rx: %s: %lud\n", rxstatnames[i], ctlr->rxstats[i]);
-
-/*
-	for (i = 0; i < NMiiPhyr; ++i) {
-		if ((i % 8) == 0)
-			l += snprint(p + l, BIGSTR - l, "\nmii 0x%02x:", i);
-		reg=miimir(&ctlr->mii, i);
-		reg=miimir(&ctlr->mii, i);
-		l += snprint(p + l, BIGSTR - l, " %4ux", reg);
-	}
-
-	for (i = 0; i < 0x100; i+=1) {
-		if ((i % 16) == 0)
-			l += snprint(p + l, BIGSTR - l, "\nreg 0x%02x:", i);
-		else if ((i % 2) == 0)
-			l += snprint(p + l, BIGSTR - l, " ");
-		reg=ior8(ctlr, i);
-		l += snprint(p + l, BIGSTR - l, "%02x", reg);
-	}
-	l += snprint(p + l, BIGSTR - l, " \n");
-*/
-
-
-	n = readstr(offset, a, n, p);
-	free(p);
-
-	return n;
-}
-
-static int
-pnp(Ether *edev)
-{
-	Pcidev *p;
-	Ctlr *ctlr;
-	ulong port;
-	ulong size;
-
-	p = rhinematch(edev->port);
-	if (p == nil)
-		return -1;
-
-	port = p->mem[0].bar & ~1;
-	size = p->mem[0].size;
-	if (ioalloc(port, size, 0, "rhine") < 0) {
-		print("etherrhine: couldn't allocate port %lud\n", port);
-		return -1;
-	}
-
-	if ((ctlr = malloc(sizeof(Ctlr))) == nil) {
-		print("etherrhine: couldn't allocate memory for ctlr\n");
-		return -1;
-	}
-	memset(ctlr, 0, sizeof(Ctlr));
-	ctlr->txd = xspanalloc(sizeof(Desc) * Ntxd, 16, 0);
-	ctlr->rxd = xspanalloc(sizeof(Desc) * Nrxd, 16, 0);
-		
-	ctlr->pci = p;
-	ctlr->port = port;
-
-	edev->ctlr = ctlr;
-	edev->port = ctlr->port;
-	edev->irq = p->intl;
-	edev->tbdf = p->tbdf;
-
-	init(edev);
-
-	edev->interrupt = interrupt;
-	edev->arg = edev;
-
-	edev->attach = attach;
-	edev->transmit = transmit;
-	edev->ifstat = ifstat;
-	edev->promiscuous = promiscuous;
-	edev->multicast = multicast;
-	edev->shutdown = shutdown;
-	return 0;
-}
-
-void
-etherrhinelink(void)
-{
-	addethercard("rhine", pnp);
-}
-- 
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