ipxe.patch

diff --git a/src/core/malloc.c b/src/core/malloc.c
index 32c20353..83f3e980 100644
--- a/src/core/malloc.c
+++ b/src/core/malloc.c
@@ -98,7 +98,7 @@ size_t freemem;
  *
  * Currently fixed at 512kB.
  */
-#define HEAP_SIZE ( 512 * 1024 )
+#define HEAP_SIZE ( 4 * 1024 * 1024 )
 
 /** The heap itself */
 static char heap[HEAP_SIZE] __attribute__ (( aligned ( __alignof__(void *) )));
diff --git a/src/drivers/net/intel.h b/src/drivers/net/intel.h
index 16a72a11..d43bbcee 100644
--- a/src/drivers/net/intel.h
+++ b/src/drivers/net/intel.h
@@ -145,10 +145,10 @@ struct intel_descriptor {
  * Minimum value is 8, since the descriptor ring length must be a
  * multiple of 128.
  */
-#define INTEL_NUM_RX_DESC 16
+#define INTEL_NUM_RX_DESC 512
 
 /** Receive descriptor ring fill level */
-#define INTEL_RX_FILL 8
+#define INTEL_RX_FILL 256
 
 /** Receive buffer length */
 #define INTEL_RX_MAX_LEN 2048
@@ -161,7 +161,7 @@ struct intel_descriptor {
  * Descriptor ring length must be a multiple of 16.  ICH8/9/10
  * requires a minimum of 16 TX descriptors.
  */
-#define INTEL_NUM_TX_DESC 16
+#define INTEL_NUM_TX_DESC 512
 
 /** Transmit descriptor ring maximum fill level */
 #define INTEL_TX_FILL ( INTEL_NUM_TX_DESC - 1 )
diff --git a/src/include/ipxe/tcp.h b/src/include/ipxe/tcp.h
index 21be3ca8..695e5479 100644
--- a/src/include/ipxe/tcp.h
+++ b/src/include/ipxe/tcp.h
@@ -351,9 +351,9 @@ struct tcp_options {
  * bandwidth), since in the event of a lost packet the window size
  * represents the maximum amount that will need to be retransmitted.
  *
- * We therefore choose a maximum window size of 256kB.
+ * We therefore choose a maximum window size of 1Mb.
  */
-#define TCP_MAX_WINDOW_SIZE	( 256 * 1024 )
+#define TCP_MAX_WINDOW_SIZE	( 1 * 1024 * 1024 )
 
 /**
  * Path MTU