X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FModules%2FNetwork%2FVIARhineII%2Frhine2.c;h=9bdbafb66f29ba81083150e34197b240cc8e03e6;hb=f0b5018caef356cda6afa147ddb6917068c62dd7;hp=3d8a4fa6a9889e4b8758ee90a9ba6a5f53ce10ff;hpb=b0a26ff18cc1e7df2442a8a967017d8c81f1de38;p=tpg%2Facess2.git

diff --git a/KernelLand/Modules/Network/VIARhineII/rhine2.c b/KernelLand/Modules/Network/VIARhineII/rhine2.c
index 3d8a4fa6..9bdbafb6 100644
--- a/KernelLand/Modules/Network/VIARhineII/rhine2.c
+++ b/KernelLand/Modules/Network/VIARhineII/rhine2.c
@@ -14,7 +14,8 @@
 #define DESC_SIZE	16
 #define N_RX_DESCS	16
 #define RX_BUF_SIZE	1024
-#define N_RX_PAGES	((N_RX_DESCS*RX_BUF_SIZE)/PAGE_SIZE)
+#define N_RX_BUF_PER_PAGE	(PAGE_SIZE/RX_BUF_SIZE)
+#define N_RX_BUF_PAGES	((N_RX_DESCS*RX_BUF_SIZE)/PAGE_SIZE)
 #define N_TX_DESCS	((PAGE_SIZE/DESC_SIZE)-N_RX_DESCS)
 
 #define CR0_BASEVAL	(CR0_STRT|CR0_TXON|CR0_RXON)
@@ -35,7 +36,7 @@ typedef struct sCard
 	struct {
 		Uint32	Phys;
 		void	*Virt;
-	} RXBuffers[N_RX_PAGES];
+	} RXBuffers[N_RX_BUF_PAGES];
 
 	Uint32	DescTablePhys;
 	void	*DescTable;
@@ -44,8 +45,7 @@ typedef struct sCard
 	 int	NextTX;
 	 int	nFreeTX;
 	
-	struct sRXDesc	*FirstRX;	// Most recent unread packet
-	struct sRXDesc	*LastRX;	// End of RX descriptor queue
+	struct sRXDesc	*NextRX;	// Most recent unread packet
 
 	void	*IPHandle;	
 	Uint8	MacAddr[6];
@@ -80,7 +80,6 @@ int Rhine2_Install(char **Options)
 {
 	 int	id = -1;
 	 int	i = 0;
-//	Uint16	base;
 	tCard	*card;
 	
 	giRhine2_CardCount = PCI_CountDevices(VENDOR_ID, DEVICE_ID);
@@ -145,7 +144,7 @@ void Rhine2_int_InitialiseCard(tCard *Card)
 	
 	LOG("Allocaating RX buffers");
 	// Allocate memory for things
-	for( int i = 0; i < N_RX_PAGES; i ++ )
+	for( int i = 0; i < N_RX_BUF_PAGES; i ++ )
 	{
 		Card->RXBuffers[i].Virt = (void*)MM_AllocDMA(1, 32, &phys);
 		Card->RXBuffers[i].Phys = phys;
@@ -161,14 +160,16 @@ void Rhine2_int_InitialiseCard(tCard *Card)
 	{
 		rxdescs[i].RSR = 0;
 		rxdescs[i].BufferSize = RX_BUF_SIZE;
-		rxdescs[i].RXBufferStart = Card->RXBuffers[i/(PAGE_SIZE/RX_BUF_SIZE)].Phys
-			+ (i % (PAGE_SIZE/RX_BUF_SIZE)) * RX_BUF_SIZE;
+		rxdescs[i].RXBufferStart = Card->RXBuffers[i/N_RX_BUF_PER_PAGE].Phys
+			+ (i % N_RX_BUF_PER_PAGE) * RX_BUF_SIZE;
 		rxdescs[i].RDBranchAddress = Card->DescTablePhys + (i+1) * DESC_SIZE;
 		rxdescs[i].Length = (1 << 15);	// set OWN
+		LOG("RX Desc %p = {Buf:0x%8x, Next:0x%x}", rxdescs,
+			rxdescs[i].RXBufferStart, rxdescs[i].RDBranchAddress
+			);
 	}
 	rxdescs[ N_RX_DESCS - 1 ].RDBranchAddress = Card->DescTablePhys;
-	Card->FirstRX = &rxdescs[0];
-	Card->LastRX = &rxdescs[N_RX_DESCS - 1];
+	Card->NextRX = &rxdescs[0];
 
 	Card->TXDescs = (void*)(rxdescs + N_RX_DESCS);
 	memset(Card->TXDescs, 0, sizeof(struct sTXDesc)*N_TX_DESCS);
@@ -191,7 +192,7 @@ void Rhine2_int_InitialiseCard(tCard *Card)
 	
 	LOG("RX started");
 	outb(Card->IOBase + REG_CR0, CR0_BASEVAL);
-	outb(Card->IOBase + REG_CR1, CR1_DPOLL);	// Disabled TX polling only?
+	outb(Card->IOBase + REG_CR1, 0);	// Disabled TX polling only?
 	
 	LOG("ISR state: %02x %02x", inb(Card->IOBase + REG_ISR0), inb(Card->IOBase + REG_ISR1));
 }
@@ -214,7 +215,7 @@ tIPStackBuffer *Rhine2_WaitPacket(void *Ptr)
 	}
 	
 	nDesc = 0;
-	desc = card->FirstRX;
+	desc = card->NextRX;
 	while( !(desc->Length & (1 << 15)) )
 	{
 //		LOG("desc(%p) = {RSR:%04x,Length:%04x,BufferSize:%04x,RXBufferStart:%08x,RDBranchAddress:%08x}",
@@ -227,7 +228,7 @@ tIPStackBuffer *Rhine2_WaitPacket(void *Ptr)
 	LOG("%i descriptors in packet", nDesc);
 
 	ret = IPStack_Buffer_CreateBuffer(nDesc);
-	desc = card->FirstRX;
+	desc = card->NextRX;
 	while( !(desc->Length & (1 << 15)) )
 	{
 		void	*data = Rhine2_int_GetBufferFromPhys(card, desc->RXBufferStart);
@@ -237,7 +238,7 @@ tIPStackBuffer *Rhine2_WaitPacket(void *Ptr)
 			);
 		desc = Rhine2_int_GetDescFromPhys(card, desc->RDBranchAddress);
 	}	
-	card->FirstRX = desc;
+	card->NextRX = desc;
 
 	LEAVE('p', ret);
 	return ret;
@@ -327,7 +328,7 @@ int Rhine2_SendPacket(void *Ptr, tIPStackBuffer *Buffer)
 	card->NextTX = (card->NextTX + nDescs) % N_TX_DESCS;
 	desc = card->TXDescs + first_desc_id;
 	
-	desc->TXBufferStart = MM_GetPhysAddr( (tVAddr)data );
+	desc->TXBufferStart = MM_GetPhysAddr( data );
 	desc->BufferSize = len | (1 << 15);
 	desc->TSR = 0;
 	desc->TCR = 0;
@@ -406,7 +407,7 @@ struct sRXDesc *Rhine2_int_GetDescFromPhys(tCard *Card, Uint32 Addr)
 
 void *Rhine2_int_GetBufferFromPhys(tCard *Card, Uint32 Addr)
 {
-	for( int i = 0; i < N_RX_PAGES; i ++ )
+	for( int i = 0; i < N_RX_BUF_PAGES; i ++ )
 	{
 		if( Card->RXBuffers[i].Phys > Addr )	continue;
 		if( Card->RXBuffers[i].Phys + PAGE_SIZE <= Addr )	continue;
@@ -418,6 +419,8 @@ void *Rhine2_int_GetBufferFromPhys(tCard *Card, Uint32 Addr)
 void Rhine2_int_FreeRXDesc(void *Ptr, size_t u1, size_t u2, const void *u3)
 {
 	struct sRXDesc	*desc = Ptr;
+
+	LOG("Descriptor %p returned to card", desc);
 	
 	desc->RSR = 0;
 	desc->Length = (1 << 15);	// Reset OWN