From: Matt Wojcik <matthewwojcik2007@u.northwestern.edu>
Date: Fri, 8 Aug 2008 19:57:18 +0000 (+0000)
Subject: Fixed the bug that caused the first packet sent to always be malformed.
X-Git-Tag: vmmhack1-ramdisk-boot-iso-puppy~9
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=a868ff7325e5f94ee3a40198f14b96acc4b311bc

Fixed the bug that caused the first packet sent to always be malformed.
---

diff --git a/palacios/src/geekos/ne2k.c b/palacios/src/geekos/ne2k.c
index b64f9cf..8810895 100644
--- a/palacios/src/geekos/ne2k.c
+++ b/palacios/src/geekos/ne2k.c
@@ -263,7 +263,7 @@ int NE2K_Send(uchar_t src[], uchar_t dest[], uint_t type, uchar_t *data, uint_t
 {
   struct _CR * cr = (struct _CR*)&(regs->cr);
   uint_t packet_size = size + 16;
-  regs->cr = 0x21;
+  regs->cr = 0x21; /* Turn off remote DMA, stop command */
   cr->stp = 0x0;  //toggle start on
   cr->sta = 0x1;
   Out_Byte(NE2K_CR, regs->cr);
@@ -291,7 +291,7 @@ int NE2K_Send(uchar_t src[], uchar_t dest[], uint_t type, uchar_t *data, uint_t
   Out_Byte(NE2K_RSAR0, 0x00);
   Out_Byte(NE2K_RSAR1, TX_START_BUFF);
 
-  regs->cr = 0x16;
+  cr->rd = 0x02; /* Set remote DMA to write */
   Out_Byte(NE2K_CR, regs->cr);
 
   /* Destination Address */
@@ -312,6 +312,9 @@ int NE2K_Send(uchar_t src[], uchar_t dest[], uint_t type, uchar_t *data, uint_t
     Out_Word(NE2K_CR + 0x10, (*(data + i + 1) << 8) | *(data + i));
   }
 
+  cr->txp = 0x1; /* Start transmission */
+  Out_Byte(NE2K_CR, regs->cr);
+
   return 0;
 }