Hi All,
I am implementing a UEFI driver for a network controller and I am producing
Simple Network Protocol(SNP). To test this, I am using the 'ping' shell
command. The problem is that I never get the first ping reply. I have debugged
this all the way up the IPv4 stack and I can see that reply packet is being
passed up but the first packet never reaches the 'ping' command. Logs below.
From the ping source code it looks like it is creating an event to get a call
back on reply packet and as part of the call back, it registers for event again
if more replies are expected. But the first reply never kicks the call back
function.Any suggestions ?Thanx.
Shell> ping -n 1 172.25.17.100Ping StartsAPing 172.25.17.100 16 data
bytesNicVfTransmit
(ARP request)NicVfGetPacket
(ARP reply)NicVfTransmit
(Ping packet)NicVfGetPacket
(Ping reply)Ip4AccpetFrame EFI_IP_PROTO_ICMP (ICMP
recognized)Ip4IcmpHandle ICMP_QUERY_MESSAGEIp4ProcessIcmpQuery Ip4Demultiplex
(Ip4Demultiplex function call)Ip4Demultiplex
Ip4InterfaceEnquePacketIp4Demultiplex Ip4InterfaceEnquePacketIp4Demultiplex
Ip4InterfaceDeliverPacketIp4Demultiplex Ip4InterfaceDeliverPacket
1 packets transmitted, 0 received, 100% packet loss, time 0ms
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