From c25f3f39d2a544a91a8a96ea90bda1dc1d77b76a Mon Sep 17 00:00:00 2001
From: Joshua Wise <joshua@rebirth.joshuawise.com>
Date: Sun, 5 Oct 2008 22:42:26 -0400
Subject: [PATCH] Open up TSEG so we can blast more packets out.  Be a little
 less verbose.

---
 net/3c90x.c | 13 ++-----------
 net/net.c   |  7 +++----
 2 files changed, 5 insertions(+), 15 deletions(-)

diff --git a/net/3c90x.c b/net/3c90x.c
index ae8a771..336e2a7 100644
--- a/net/3c90x.c
+++ b/net/3c90x.c
@@ -51,7 +51,7 @@
  ** this is the number of times to retry the transmission -- this should
  ** be plenty
  **/
-#define	XMIT_RETRIES	1
+#define	XMIT_RETRIES	5
 
 /*** Register definitions for the 3c905 ***/
 enum Registers
@@ -492,8 +492,6 @@ a3c90x_transmit(const char *dest_addr, unsigned int proto,
 		if (retries != 0)
 			outputf("3c90x: retrying packet send (%d)", retries);
 		
-		/** Stall the download engine **/
-		outputf("3c90x: stalling transmit engine");
 		_issue_command(INF_3C90X.IOAddr, cmdStallCtl, 2 /* Stall download */);
 
 		hdr.type = htons(proto);
@@ -503,29 +501,22 @@ a3c90x_transmit(const char *dest_addr, unsigned int proto,
 		/** Setup the DPD (download descriptor) **/
 		INF_3C90X.TransmitDPD.DnNextPtr = 0;
 		/** set notification for transmission completion (bit 15) **/
-		INF_3C90X.TransmitDPD.FrameStartHeader = (size + sizeof(hdr)) /*| 0x8000*/;
+		INF_3C90X.TransmitDPD.FrameStartHeader = (size + sizeof(hdr)) | 0x8000;
 		INF_3C90X.TransmitDPD.HdrAddr = virt_to_bus(&hdr);
 		INF_3C90X.TransmitDPD.HdrLength = sizeof(hdr);
 		INF_3C90X.TransmitDPD.DataAddr = virt_to_bus(pkt);
 		INF_3C90X.TransmitDPD.DataLength = size + (1<<31);
 
 		/** Send the packet **/
-		outputf("3c90x: pointing card at %08x", virt_to_bus(&(INF_3C90X.TransmitDPD)));
 		outl(INF_3C90X.IOAddr + regDnListPtr_l, virt_to_bus(&(INF_3C90X.TransmitDPD)));
-
-		outputf("3c90x: unstalling transmit engine");
 		_issue_command(INF_3C90X.IOAddr, cmdStallCtl, 3 /* Unstall download */);
 		
-		outputf("3c90x: waiting for download pointer");
 		oneshot_start_ms(100);
 		while((inl(INF_3C90X.IOAddr + regDnListPtr_l) != 0) && oneshot_running())
 			;
 		if (!oneshot_running())
-		{
 			outputf("3c90x: Download engine pointer timeout");
-		}
 
-		outputf("3c90x: waiting for TXCOMPLETE");
 		oneshot_start_ms(10);	/* Give it 10 ms */
 		while (!(inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_TXCOMPLETE) && oneshot_running())
 			;
diff --git a/net/net.c b/net/net.c
index 04eaff5..01b4521 100644
--- a/net/net.c
+++ b/net/net.c
@@ -33,9 +33,7 @@ void eth_poll()
 		case 4: test[i] = 'L'; break;
 		}
 	}
-	outputf("eth_poll: Attempting to tx");
 	_nic->transmit("\x00\x03\x93\x87\x84\x8C", 0x1337, 1024, test);
-	outputf("eth_poll: tx complete");
 }
 
 int eth_register(struct nic *nic)
@@ -48,6 +46,7 @@ int eth_register(struct nic *nic)
 
 void eth_init()
 {
-	if (pci_probe_driver(a3c90x_driver))
-		outputf("found 3c90x, hopefully!");
+	/* Required for DMA to work. :( */
+	smram_tseg_set_state(SMRAM_TSEG_OPEN);
+	pci_probe_driver(a3c90x_driver);
 }
-- 
2.43.0