ca12a0c83b
The RFC1323 which defines the TCP window scale option has been obsoleted by RFC7323. This patch is to follow the RFC7323 to address the TCP window retraction problem when a non-zero scale factor is used. The changes has been test in high packet loss rate network by using HTTP boot and iSCSI file read/write. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com>