tap: Increase amount of tap receive buffers to 128

...boom. To make it slightly more reasonable, shrink struct tap_msg
down a bit, and move the main message array away from the stack of
tap_handler_passt().

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/passt.h b/passt.h
index f5ecb0c..e3f570b 100644
--- a/passt.h
+++ b/passt.h
@@ -11,8 +11,8 @@
 struct tap_msg {
 	char *start;
 	char *l4h;
-	size_t len;
-	size_t l4_len;
+	uint16_t len;
+	uint16_t l4_len;
 };
 
 union epoll_ref;
@@ -45,7 +45,7 @@ union epoll_ref {
 	uint64_t u64;
 };
 
-#define TAP_BUF_BYTES		(ETH_MAX_MTU * 3)
+#define TAP_BUF_BYTES		(ETH_MAX_MTU * 128)
 #define TAP_BUF_FILL		(TAP_BUF_BYTES - ETH_MAX_MTU - sizeof(uint32_t))
 #define TAP_MSGS		(TAP_BUF_BYTES / sizeof(struct ethhdr) + 1)