From: Oliver Kurth <okurth@vmware.com>
Date: Mon, 3 Jun 2019 20:39:44 +0000 (-0700)
Subject: Common header file change not applicable to open-vm-tools.
X-Git-Tag: stable-11.0.0~63
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=70596395cf892d07321ddd9ee8f947c06973e565;p=thirdparty%2Fopen-vm-tools.git

Common header file change not applicable to open-vm-tools.
---

diff --git a/open-vm-tools/modules/shared/vmxnet/eth_public.h b/open-vm-tools/modules/shared/vmxnet/eth_public.h
index 24e21ea9d..27362b0db 100644
--- a/open-vm-tools/modules/shared/vmxnet/eth_public.h
+++ b/open-vm-tools/modules/shared/vmxnet/eth_public.h
@@ -335,7 +335,13 @@ extern Eth_Address netEthBroadcastAddr;
 #define ETH_MIN_FRAME_LEN                    60
 #define ETH_MAX_STD_MTU                      1500
 #define ETH_MAX_STD_FRAMELEN                 (ETH_MAX_STD_MTU + ETH_MAX_HEADER_LEN)
-#define ETH_MAX_JUMBO_MTU                    9000
+/*
+ * ENS_MBUF_SLAB_9K_ALLOC_SIZE and PKT_SLAB_JUMBO_SIZE both use 9216 for L2
+ * MTU. And ETH_MAX_JUMBO_MTU is L3 MTU. It is required to have
+ * (ETH_MAX_JUMBO_MTU + ETH_MAX_HEADER_LEN) <= 9216 and ETH_MAX_HEADER_LEN is
+ * 26. So the maximal possible ETH_MAX_JUMBO_MTU = 9216 - 26 = 9190.
+ */
+#define ETH_MAX_JUMBO_MTU                    9190
 #define ETH_MAX_JUMBO_FRAMELEN               (ETH_MAX_JUMBO_MTU + ETH_MAX_HEADER_LEN)
 
 #define ETH_DEFAULT_MTU                      1500