-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Heng Luo
Sent: Sunday, April 3, 2022 2:14 PM
To: devel@edk2.groups.io
Cc: Maciej Rabeda <maciej.rabeda@...>; Fu, Siyuan
<siyuan.fu@...>; Wu, Jiaxin <jiaxin.wu@...>
Subject: [edk2-devel] [Patch V4] NetworkPkg: Add PCDs for HTTP DNS
RetryCount and RetryInterval

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3889

Currently the HTTP DNS Retry Interval is 2 second and no retry attempt.
If DNS response can't arrive in 2 second, the DNS request is failed, and then
HTTP boot is failed.
In order to resolve this issue, Add PCDs to support RetryCount and RetryInterval
configured in Platform.

Cc: Maciej Rabeda <maciej.rabeda@...>
Cc: Fu Siyuan <siyuan.fu@...>
Cc: Wu Jiaxin <jiaxin.wu@...>
Signed-off-by: Heng Luo <heng.luo@...>
---
NetworkPkg/HttpDxe/HttpDns.c | 4 ++++
NetworkPkg/HttpDxe/HttpDxe.inf | 2 ++
NetworkPkg/NetworkPkg.dec | 9 +++++++++
NetworkPkg/NetworkPkg.uni | 11 +++++++++++
4 files changed, 26 insertions(+)

diff --git a/NetworkPkg/HttpDxe/HttpDns.c b/NetworkPkg/HttpDxe/HttpDns.c
index 59a2784e6a..13cbde0f34 100644
--- a/NetworkPkg/HttpDxe/HttpDns.c
+++ b/NetworkPkg/HttpDxe/HttpDns.c
@@ -108,6 +108,8 @@ HttpDns4 (
Dns4CfgData.DnsServerListCount = DnsServerListCount;
Dns4CfgData.DnsServerList = DnsServerList;
Dns4CfgData.UseDefaultSetting = HttpInstance-

IPv4Node.UseDefaultAddress;

+ Dns4CfgData.RetryInterval = PcdGet32 (PcdHttpDnsRetryInterval);
+ Dns4CfgData.RetryCount = PcdGet32 (PcdHttpDnsRetryCount);
if (!Dns4CfgData.UseDefaultSetting) {
IP4_COPY_ADDRESS (&Dns4CfgData.StationIp, &HttpInstance-

IPv4Node.LocalAddress);

IP4_COPY_ADDRESS (&Dns4CfgData.SubnetMask, &HttpInstance-

IPv4Node.LocalSubnet);

@@ -315,6 +317,8 @@ HttpDns6 (
Dns6ConfigData.DnsServerList = DnsServerList;
Dns6ConfigData.EnableDnsCache = TRUE;
Dns6ConfigData.Protocol = EFI_IP_PROTO_UDP;
+ Dns6ConfigData.RetryInterval = PcdGet32 (PcdHttpDnsRetryInterval);
+ Dns6ConfigData.RetryCount = PcdGet32 (PcdHttpDnsRetryCount);
IP6_COPY_ADDRESS (&Dns6ConfigData.StationIp, &HttpInstance-

Ipv6Node.LocalAddress);

Status = Dns6->Configure (
Dns6,
diff --git a/NetworkPkg/HttpDxe/HttpDxe.inf
b/NetworkPkg/HttpDxe/HttpDxe.inf index af681c0184..c9502d0bb6 100644
--- a/NetworkPkg/HttpDxe/HttpDxe.inf
+++ b/NetworkPkg/HttpDxe/HttpDxe.inf
@@ -75,6 +75,8 @@
[Pcd]
gEfiNetworkPkgTokenSpaceGuid.PcdAllowHttpConnections ## CONSUMES
gEfiNetworkPkgTokenSpaceGuid.PcdHttpIoTimeout ## CONSUMES
+ gEfiNetworkPkgTokenSpaceGuid.PcdHttpDnsRetryInterval ## CONSUMES
+ gEfiNetworkPkgTokenSpaceGuid.PcdHttpDnsRetryCount ## CONSUMES

[UserExtensions.TianoCore."ExtraFiles"]
HttpDxeExtra.uni
diff --git a/NetworkPkg/NetworkPkg.dec b/NetworkPkg/NetworkPkg.dec index
928e84fec4..5e43ebf8c5 100644
--- a/NetworkPkg/NetworkPkg.dec
+++ b/NetworkPkg/NetworkPkg.dec
@@ -163,5 +163,14 @@
# @Prompt The Timeout value of HTTP Io. Default value is 5000.

gEfiNetworkPkgTokenSpaceGuid.PcdHttpIoTimeout|5000|UINT32|0x0000000F

+ ## The Retry Interval of HTTP DNS in seconds. If the Retry Interval
+ is less than # DNS_DEFAULT_TIMEOUT, then use the
DNS_DEFAULT_TIMEOUT.
+ # @Prompt The value of Retry Interval. Default value is 0
+
+
gEfiNetworkPkgTokenSpaceGuid.PcdHttpDnsRetryInterval|0|UINT32|0x000000
+ 10
+
+ ## The Retry Count of HTTP DNS if no DNS response received after Retry
Interval.
+ # @Prompt The value of Retry Count, Default value is 0.
+
gEfiNetworkPkgTokenSpaceGuid.PcdHttpDnsRetryCount|0|UINT32|0x0000001
1
+
[UserExtensions.TianoCore."ExtraFiles"]
NetworkPkgExtra.uni
diff --git a/NetworkPkg/NetworkPkg.uni b/NetworkPkg/NetworkPkg.uni index
6d0fa67c6f..c0bbbd3ee1 100644
--- a/NetworkPkg/NetworkPkg.uni
+++ b/NetworkPkg/NetworkPkg.uni
@@ -111,3 +111,14 @@
#string STR_gEfiNetworkPkgTokenSpaceGuid_PcdHttpIoTimeout_HELP
#language en-US "This value is used to configure the request and response
timeout when getting "
"the recovery image from the
remote source during an HTTP recovery boot."
"The default value set is 5 seconds."
+
+#string
STR_gEfiNetworkPkgTokenSpaceGuid_PcdHttpDnsRetryInterval_PROMPT
#language en-US "Retry Interval of HTTP DNS"
+
+#string STR_gEfiNetworkPkgTokenSpaceGuid_PcdHttpDnsRetryInterval_HELP
#language en-US "This value is used to configure the retry Interval of HTTP
DNS."
+ "The default value set is 0 second.
If the value is less than"
+ "DNS_DEFAULT_TIMEOUT, then
use the DNS_DEFAULT_TIMEOUT."
+
+#string STR_gEfiNetworkPkgTokenSpaceGuid_PcdHttpDnsRetryCount_PROMPT
#language en-US "Retry Count of HTTP DNS"
+
+#string STR_gEfiNetworkPkgTokenSpaceGuid_PcdHttpDnsRetryCount_HELP
#language en-US "This value is used to configure the Retry Count of HTTP DNS if
"
+ "no DNS response received after
Retry Interval. The default value set is 0."
--
2.31.1.windows.1