e1000: More transmit changes...

apps/upload.krk

@@ -0,0 +1,29 @@
+#!/bin/kuroko
+
+import socket
+import fileio
+
+import kuroko
+
+let b
+with fileio.open(kuroko.argv[1],'rb') as f:
+    b = f.read()
+
+let endpoint = kuroko.argv[2]
+
+if ':' in endpoint:
+    let x = endpoint.split(':')
+    endpoint = (x[0], int(x[1]))
+
+print("Uploading",len(b),"byte(s) to",endpoint)
+
+let s = socket.socket()
+
+s.connect(endpoint)
+
+print("Connected...")
+
+s.send(b)
+
+print("Done.")
+

modules/e1000.c

@@ -254,7 +254,7 @@ static void send_packet(struct e1000_nic * device, uint8_t* payload, size_t payl
 					return;
 				}
 				tx_head = read_command(device, E1000_REG_TXDESCHEAD);
-			} while (next_tx == tx_head);
+			} while ((next_tx + 1) % E1000_NUM_TX_DESC == tx_head);
 		}
 	}