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MdeModulePkg/Ip4Dxe: Add an independent timer for reconfig checking 

* 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>
This commit is contained in:
Wang Fan 2018-01-11 15:28:41 +08:00 committed by Jiaxin Wu
parent e0e26f9c1f
commit 018432f0ce
3 changed files with 83 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Driver.c
View File

@ -1,7 +1,7 @@
/** @file
The driver binding and service binding protocol for IP4 driver.
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
@ -253,6 +253,7 @@ Ip4CreateService (
ZeroMem (&IpSb->SnpMode, sizeof (EFI_SIMPLE_NETWORK_MODE));
IpSb->Timer = NULL;
IpSb->ReconfigCheckTimer = NULL;
IpSb->ReconfigEvent = NULL;
@ -284,6 +285,18 @@ Ip4CreateService (
goto ON_ERROR;
}
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL | EVT_TIMER,
TPL_CALLBACK,
Ip4TimerReconfigChecking,
IpSb,
&IpSb->ReconfigCheckTimer
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
@ -410,6 +423,13 @@ Ip4CleanService (
IpSb->Timer = NULL;
}
if (IpSb->ReconfigCheckTimer != NULL) {
gBS->SetTimer (IpSb->ReconfigCheckTimer, TimerCancel, 0);
gBS->CloseEvent (IpSb->ReconfigCheckTimer);
IpSb->ReconfigCheckTimer = NULL;
}
if (IpSb->DefaultInterface != NULL) {
Status = Ip4FreeInterface (IpSb->DefaultInterface, NULL);
@ -630,6 +650,12 @@ Ip4DriverBindingStart (
goto UNINSTALL_PROTOCOL;
}
Status = gBS->SetTimer (IpSb->ReconfigCheckTimer, TimerPeriodic, 500 * TICKS_PER_MS);
if (EFI_ERROR (Status)) {
goto UNINSTALL_PROTOCOL;
}
//
// Initialize the IP4 ID
//

47
MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
View File

@ -1,6 +1,6 @@
/** @file
Copyright (c) 2005 - 2017, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -2249,18 +2249,10 @@ Ip4SentPacketTicking (
return EFI_SUCCESS;
}
/**
There are two steps for this the heart beat timer of IP4 service instance.
First, 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.
Second, a dedicated timer is used to poll underlying media status. In case
of cable swap, 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.
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.
@ -2274,6 +2266,34 @@ Ip4TimerTicking (
)
{
IP4_SERVICE *IpSb;
IpSb = (IP4_SERVICE *) Context;
NET_CHECK_SIGNATURE (IpSb, IP4_SERVICE_SIGNATURE);
Ip4PacketTimerTicking (IpSb);
Ip4IgmpTicking (IpSb);
}
/**
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
)
{
IP4_SERVICE *IpSb;
BOOLEAN OldMediaPresent;
EFI_STATUS Status;
EFI_SIMPLE_NETWORK_MODE SnpModeData;
@ -2283,9 +2303,6 @@ Ip4TimerTicking (
OldMediaPresent = IpSb->MediaPresent;
Ip4PacketTimerTicking (IpSb);
Ip4IgmpTicking (IpSb);
//
// Get fresh mode data from MNP, since underlying media status may change.
// Here, it needs to mention that the MediaPresent can also be checked even if

30
MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.h
View File

@ -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