X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/599e337ab84ce1b7e809496be7331af2fb66fffb..2d34b5d2cb94b7976fa40e954bcf060bdb5856c2:/net/3c90x.c?ds=sidebyside

diff --git a/net/3c90x.c b/net/3c90x.c
index 0925e47..30283a2 100644
--- a/net/3c90x.c
+++ b/net/3c90x.c
@@ -224,8 +224,10 @@ typedef struct
     {
     unsigned int	DnNextPtr;
     unsigned int	FrameStartHeader;
-    unsigned int	DataAddr;
-    unsigned int	DataLength;
+    struct {
+      unsigned int addr;
+      unsigned int len;
+    } __attribute ((aligned(8))) segments[64];
     }
     TXD __attribute__ ((aligned(8))); /* 64-bit aligned for bus mastering */
 
@@ -473,12 +475,12 @@ static void a3c90x_reset(void)
  *** pkt - the pointer to the packet data itself.
  ***/
 static void
-a3c90x_transmit(unsigned int size, const char *pkt)
+a3c90x_transmit(struct pbuf *p)
 {
 	unsigned char status;
-	unsigned int retries;
 	static unsigned int stillwaiting = 0;
-
+	unsigned int n, len;
+	
 	if (stillwaiting)
 	{
 		while (!(inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_TXCOMPLETE) && oneshot_running())
@@ -493,74 +495,72 @@ a3c90x_transmit(unsigned int size, const char *pkt)
 		stillwaiting = 0;
 	}
 
-	for (retries=0; retries < XMIT_RETRIES; retries++)
+	_issue_command(INF_3C90X.IOAddr, cmdStallCtl, 2 /* Stall download */);
+
+	/** Setup the DPD (download descriptor) **/
+	INF_3C90X.TransmitDPD.DnNextPtr = 0;
+	len = 0;
+	n = 0;
+	for (; p; p = p->next)
 	{
-		if (retries != 0)
-			outputf("3c90x: retrying packet send (%d)", retries);
-		
-		_issue_command(INF_3C90X.IOAddr, cmdStallCtl, 2 /* Stall download */);
-
-		/** Setup the DPD (download descriptor) **/
-		INF_3C90X.TransmitDPD.DnNextPtr = 0;
-		/** set notification for transmission completion (bit 15) **/
-		INF_3C90X.TransmitDPD.FrameStartHeader = (size) | 0x8000;
-		INF_3C90X.TransmitDPD.DataAddr = v2p((void*)pkt);
-		INF_3C90X.TransmitDPD.DataLength = size + (1<<31);
-
-		/** Send the packet **/
-		outl(INF_3C90X.IOAddr + regDnListPtr_l, v2p(&(INF_3C90X.TransmitDPD)));
-		_issue_command(INF_3C90X.IOAddr, cmdStallCtl, 3 /* Unstall download */);
+		INF_3C90X.TransmitDPD.segments[n].addr = v2p(p->payload);
+		INF_3C90X.TransmitDPD.segments[n].len = p->len | (p->next ? 0 : (1 << 31));
+		len += p->len;
+		n++;
+	}
+	/** set notification for transmission completion (bit 15) **/
+	INF_3C90X.TransmitDPD.FrameStartHeader = (len) | 0x8000;
+	
+	outputf("3c90x: Sending %d byte %d seg packet", len, n);
+
+	/** Send the packet **/
+	outl(INF_3C90X.IOAddr + regDnListPtr_l, v2p(&(INF_3C90X.TransmitDPD)));
+	_issue_command(INF_3C90X.IOAddr, cmdStallCtl, 3 /* Unstall download */);
 		
-		oneshot_start_ms(10);
-		while((inl(INF_3C90X.IOAddr + regDnListPtr_l) != 0) && oneshot_running())
-			;
-		if (!oneshot_running())
-		{
-			outputf("3c90x: Download engine pointer timeout");
-			continue;
-		}
+	oneshot_start_ms(10);
+	while((inl(INF_3C90X.IOAddr + regDnListPtr_l) != 0) && oneshot_running())
+		;
+	if (!oneshot_running())
+	{
+		outputf("3c90x: Download engine pointer timeout");
+		return;
+	}
 
-		oneshot_start_ms(10);
-		stillwaiting = 1;
-		break;
+	oneshot_start_ms(10);
+	stillwaiting = 1;
 		
 #if 0		
-		/** successful completion (sans "interrupt Requested" bit) **/
-		if ((status & 0xbf) == 0x80)
-			return;
+	/** successful completion (sans "interrupt Requested" bit) **/
+	if ((status & 0xbf) == 0x80)
+		return;
 
-		outputf("3c90x: Status (%hhX)", status);
-		/** check error codes **/
-		if (status & 0x02)
-		{
-			outputf("3c90x: Tx Reclaim Error (%hhX)", status);
-			a3c90x_reset();
-		} else if (status & 0x04) {
-			outputf("3c90x: Tx Status Overflow (%hhX)", status);
-			for (i=0; i<32; i++)
-				_outb(0x00, INF_3C90X.IOAddr + regTxStatus_b);
-			/** must re-enable after max collisions before re-issuing tx **/
-			_issue_command(INF_3C90X.IOAddr, cmdTxEnable, 0);
-		} else if (status & 0x08) {
-			outputf("3c90x: Tx Max Collisions (%hhX)", status);
-			/** must re-enable after max collisions before re-issuing tx **/
-			_issue_command(INF_3C90X.IOAddr, cmdTxEnable, 0);
-		} else if (status & 0x10) {
-			outputf("3c90x: Tx Underrun (%hhX)", status);
-			a3c90x_reset();
-		} else if (status & 0x20) {
-			outputf("3c90x: Tx Jabber (%hhX)", status);
-			a3c90x_reset();
-		} else if ((status & 0x80) != 0x80) {
-			outputf("3c90x: Internal Error - Incomplete Transmission (%hhX)", status);
-			a3c90x_reset();
-		}
-#endif
+	outputf("3c90x: Status (%hhX)", status);
+	/** check error codes **/
+	if (status & 0x02)
+	{
+		outputf("3c90x: Tx Reclaim Error (%hhX)", status);
+		a3c90x_reset();
+	} else if (status & 0x04) {
+		outputf("3c90x: Tx Status Overflow (%hhX)", status);
+		for (i=0; i<32; i++)
+			_outb(0x00, INF_3C90X.IOAddr + regTxStatus_b);
+		/** must re-enable after max collisions before re-issuing tx **/
+		_issue_command(INF_3C90X.IOAddr, cmdTxEnable, 0);
+	} else if (status & 0x08) {
+		outputf("3c90x: Tx Max Collisions (%hhX)", status);
+		/** must re-enable after max collisions before re-issuing tx **/
+		_issue_command(INF_3C90X.IOAddr, cmdTxEnable, 0);
+	} else if (status & 0x10) {
+		outputf("3c90x: Tx Underrun (%hhX)", status);
+		a3c90x_reset();
+	} else if (status & 0x20) {
+		outputf("3c90x: Tx Jabber (%hhX)", status);
+		a3c90x_reset();
+	} else if ((status & 0x80) != 0x80) {
+		outputf("3c90x: Internal Error - Incomplete Transmission (%hhX)", status);
+		a3c90x_reset();
 	}
-
-	/** failed after RETRY attempts **/
-	outputf("3c90x: Failed to send after %d retries", retries);
-	return;
+#endif
 }