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MdeModulePkg/Ip4Dxe: Add an independent timer for reconfig checking

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* Since wireless network can switch at very short time, the time interval
  of reconfig event checking is too long for this case. To achieve better
  performance and scalability, separate this task from Ip4 tick timer.

Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wang Fan <fan.wang@intel.com>
Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
(cherry picked from commit 018432f0ce)
This commit is contained in:
Wang Fan
2018-01-11 15:28:41 +08:00
committed by Jiaxin Wu
parent e2cef60f80
commit 9bdb89e8ba
3 changed files with 83 additions and 22 deletions
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30
MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.h
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@@ -1,7 +1,7 @@
/** @file
Ip4 internal functions and type defintions.
Copyright (c) 2005 - 2017, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
This program and the accompanying materials
@@ -206,7 +206,7 @@ struct _IP4_SERVICE {
EFI_SIMPLE_NETWORK_MODE SnpMode;
EFI_EVENT Timer;
EFI_EVENT ReconfigCheckTimer;
EFI_EVENT ReconfigEvent;
BOOLEAN Reconfig;
@@ -334,10 +334,9 @@ Ip4Groups (
);
/**
The heart beat timer of IP4 service instance. It times out
all of its IP4 children's received-but-not-delivered and
transmitted-but-not-recycle packets, and provides time input
for its IGMP protocol.
This heart beat timer of IP4 service instance times out all of its IP4 children's
received-but-not-delivered and transmitted-but-not-recycle packets, and provides
time input for its IGMP protocol.
@param[in] Event The IP4 service instance's heart beat timer.
@param[in] Context The IP4 service instance.
@@ -350,6 +349,25 @@ Ip4TimerTicking (
IN VOID *Context
);
/**
This dedicated timer is used to poll underlying network media status. In case
of cable swap or wireless network switch, a new round auto configuration will
be initiated. The timer will signal the IP4 to run DHCP configuration again.
IP4 driver will free old IP address related resource, such as route table and
Interface, then initiate a DHCP process to acquire new IP, eventually create
route table for new IP address.
@param[in] Event The IP4 service instance's heart beat timer.
@param[in] Context The IP4 service instance.
**/
VOID
EFIAPI
Ip4TimerReconfigChecking (
IN EFI_EVENT Event,
IN VOID *Context
);
/**
Decrease the life of the transmitted packets. If it is
decreased to zero, cancel the packet. This function is