From 5281772f43e0574fa0e21858c15711758ebda9d8 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Sun, 14 Mar 1999 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1999-03-14

---
 pc/ether2114x.c  | 60 ++++++++++++++++++++++++++----------------------
 pc/ether79c970.c |  4 +++-
 pc/ether82557.c  |  1 +
 pc/etherelnk3.c  |  1 +
 pc/fns.h         |  1 +
 pc/pci.c         | 15 ++++++++++--
 6 files changed, 51 insertions(+), 31 deletions(-)

diff --git a/pc/ether2114x.c b/pc/ether2114x.c
index d4d316ca960b02c809a25230d44090700d84db42..c32c146f09d6f36e10dc45f1e34c688298b4614a 100644
--- a/pc/ether2114x.c
+++ b/pc/ether2114x.c
@@ -873,6 +873,7 @@ typephymode(Ctlr* ctlr, uchar* block, int wait)
 	ctlr->ttm |= *p<<8;
 	debug("mc %4.4uX nway %4.4uX fdx %4.4uX ttm %4.4uX\n",
 		mc, nway, ctlr->fdx, ctlr->ttm);
+	USED(mc);
 
 	phyx = block[2];
 	ctlr->curphyad = ctlr->phy[phyx];
@@ -1247,6 +1248,7 @@ debug("sct 0x%uX medium 0x%uX k %d curk %d phy %d\n",
 				miir(ctlr, k, 1);
 				debug("phy%d: index %d oui %uX reg1 %uX\n",
 					x, k, oui, miir(ctlr, k, 1));
+				USED(oui);
 			}
 			ctlr->phy[x] = k;
 		}
@@ -1263,52 +1265,53 @@ dec2114xpci(void)
 {
 	Ctlr *ctlr;
 	Pcidev *p;
-	int cfdd;
+	int x;
 
 	p = nil;
 	while(p = pcimatch(p, 0x1011, 0)){
 		switch(p->did){
 		default:
-			break;
+			continue;
 
 		case 0x0019:		/* 21143 */
 			/*
 			 * Exit sleep mode.
 			 */
-			cfdd = pcicfgr32(p, 0x40);
-			cfdd &= ~0xc0000000;
-			pcicfgw32(p, 0x40, cfdd);
+			x = pcicfgr32(p, 0x40);
+			x &= ~0xc0000000;
+			pcicfgw32(p, 0x40, x);
 			/*FALLTHROUGH*/
 
 		case 0x0009:		/* 21140 */
-			ctlr = malloc(sizeof(Ctlr));
-			/*
-			 * bar[0] is the I/O port register address and
-			 * bar[1] is the memory-mapped register address.
-			 */
-			ctlr->port = p->mem[0].bar & ~0x01;
-			ctlr->pcidev = p;
+			break;
+		}
 
-			/*
-			 * Some cards (e.g. ANA-6910FX) seem to need the Ps bit
-			 * set or they don't always work right after a hardware
-			 * reset.
-			 */
-			csr32w(ctlr, 6, Mbo|Ps);
-			softreset(ctlr);
+		/*
+		 * bar[0] is the I/O port register address and
+		 * bar[1] is the memory-mapped register address.
+		 */
+		ctlr = malloc(sizeof(Ctlr));
+		ctlr->port = p->mem[0].bar & ~0x01;
+		ctlr->pcidev = p;
 
-			if(srom(ctlr)){
-				free(ctlr);
-				break;
-			}
+		/*
+		 * Some cards (e.g. ANA-6910FX) seem to need the Ps bit
+		 * set or they don't always work right after a hardware
+		 * reset.
+		 */
+		csr32w(ctlr, 6, Mbo|Ps);
+		softreset(ctlr);
 
-			if(ctlrhead != nil)
-				ctlrtail->next = ctlr;
-			else
-				ctlrhead = ctlr;
-			ctlrtail = ctlr;
+		if(srom(ctlr)){
+			free(ctlr);
 			break;
 		}
+
+		if(ctlrhead != nil)
+			ctlrtail->next = ctlr;
+		else
+			ctlrhead = ctlr;
+		ctlrtail = ctlr;
 	}
 }
 
@@ -1392,6 +1395,7 @@ reset(Ether* ether)
 	 */
 	ctlr->nrdr = Nrde;
 	ctlr->ntdr = Ntde;
+	pcisetbme(ctlr->pcidev);
 	ctlrinit(ether);
 
 	/*
diff --git a/pc/ether79c970.c b/pc/ether79c970.c
index 761692edd7436bc27a4d2006696b0496fdb4859b..9779e971808f2735b774c6a02e9745873a50c313 100644
--- a/pc/ether79c970.c
+++ b/pc/ether79c970.c
@@ -446,8 +446,10 @@ amd79c970pci(void)
 	Pcidev *p;
 
 	p = nil;
-	while(p = pcimatch(p, 0x1022, 0x2000))
+	while(p = pcimatch(p, 0x1022, 0x2000)){
 		amd79c970adapter(&adapter, p->mem[0].bar & ~0x01, p->intl, p->tbdf);
+		pcisetbme(p);
+	}
 }
 
 static int
diff --git a/pc/ether82557.c b/pc/ether82557.c
index 7afede8c16a3acb971b192e0affc0eec2f7aaa20..8bbbc2dc608c228126da33e30b4b3f3a661fe761 100644
--- a/pc/ether82557.c
+++ b/pc/ether82557.c
@@ -906,6 +906,7 @@ i82557pci(void)
 		 * bar[2] is for the flash ROM (1MB).
 		 */
 		i82557adapter(&adapter, p->mem[1].bar & ~0x01, p->intl, p->tbdf);
+		pcisetbme(p);
 	}
 }
 
diff --git a/pc/etherelnk3.c b/pc/etherelnk3.c
index 7e5945cdb2f65da0c9122c96f50fce0d0014a13e..58d988302c64cfb0cf60e432d4a23f0208d26410 100644
--- a/pc/etherelnk3.c
+++ b/pc/etherelnk3.c
@@ -1396,6 +1396,7 @@ tcm59Xpci(void)
 			;
 
 		tcmadapter(port, irq, p->tbdf);
+		pcisetbme(p);
 	}
 }
 
diff --git a/pc/fns.h b/pc/fns.h
index ff0553ca75dcba8928910ec2b4e4929e9cc4a745..095eaafd9db9bb4bbd5045f9e3998ecc13ca993d 100644
--- a/pc/fns.h
+++ b/pc/fns.h
@@ -82,6 +82,7 @@ void	pcihinv(Pcidev*);
 Pcidev* pcimatch(Pcidev*, int, int);
 Pcidev* pcimatchtbdf(int);
 void	pcireset(void);
+void	pcisetbme(Pcidev*);
 PCMmap*	pcmmap(int, ulong, int, int);
 int	pcmspecial(char*, ISAConf*);
 void	pcmspecialclose(int);
diff --git a/pc/pci.c b/pc/pci.c
index edf7676b6ffc59bc9e6f55f011d26678b88be37c..2768f789ee8c5b6d6524e57f129daa2319f18420 100644
--- a/pc/pci.c
+++ b/pc/pci.c
@@ -669,7 +669,18 @@ pcireset(void)
 		pcicfginit();
 
 	for(p = pcilist; p != nil; p = p->list){
-		pcr = pcicfgr16(p, PciPSR);
-		pcicfgw16(p, PciPSR, pcr & ~0x04);
+		pcr = pcicfgr16(p, PciPCR);
+		pcr &= ~0x0004;
+		pcicfgw16(p, PciPCR, pcr);
 	}
 }
+
+void
+pcisetbme(Pcidev* p)
+{
+	int pcr;
+
+	pcr = pcicfgr16(p, PciPCR);
+	pcr |= 0x0004;
+	pcicfgw16(p, PciPCR, pcr);
+}