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Re: [lwip-users] ping issue


From: Vincent Cui
Subject: Re: [lwip-users] ping issue
Date: Tue, 18 Jun 2013 09:32:28 +0000

Hi Mark:

 

I find the port code you release, and find that the ping response become slower too .

 

Vincent  

 

From: lwip-users-bounces+address@hidden [mailto:lwip-users-bounces+address@hidden On Behalf Of Mark Lakata
Sent: 2013
610 PM 2:22
To: address@hidden
Subject: Re: [lwip-users] ping issue

 

I don't have a link for it, but look through the archives on May 30 & 31,2013 from me (The subject was "Re: [lwip-users] STM32 RBUS (Receive Buffer Unavailable) bit setafter debugger break")

On 6/8/2013 5:21 PM, Vincent Cui wrote:

Hi :

Yes, I use the stm32 demo code, I trace the code and found that icmp handler routine is not deal with sometimes.

Could you give me link for the code you post ?

 

Vincent  

 

 

Vincent Cui

Firmware Engineer Leader

Room1106, Building A, New Caohejing Business Centre, No.391, Guiping Road, Xuhui District, Shanghai, P.R.China

T: +86 21 34612525, M: +86 13482482211

www.enlogic.com


P please consider the environment before printing this email


This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to which they are addressed.  If you have received this e-mail in error, please notify the sender immediately and then delete it.  If you are not the intended recipient, you must not use, disclose or distribute this e-mail without the author's prior permission. We have taken precautions to minimize the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message.  We cannot accept liability for any loss or damage caused by software viruses.  Any views and/or opinions expressed in this e-mail are of the author only and do not necessarily represent the views of Enlogic.


From: lwip-users-bounces+address@hidden [mailto:lwip-users-bounces+address@hidden] On Behalf Of Mark Lakata
Sent: 2013
68 PM 9:30
To: Mailing list for lwIP users
Subject: Re: [lwip-users] ping issue

 

This sounds like a driver bug.  Are you using the stm32 demo code? It has this problem.  The problem is that the interrupts are being lost but the packets are still there in the hw rx buffer. You need random rx packets to trigger new interrupts. I posted some code recently that fixes this issue.

On Jun 8, 2013 2:27 AM, "Vincent Cui" <address@hidden> wrote:

All:

 

A strange problem happen after device running some days.

After power on, PING response is fast. But after running some days, ping response becomes lower and timeout sometimes.

I configure ICMP checksum by hardware. Anyone has same problem ?

 

cid:image005.png@01CE62E2.C18A2470

 

Vincent Cui

Firmware Engineer Leader

Room1106, Building A, New Caohejing Business Centre, No.391, Guiping Road, Xuhui District, Shanghai, P.R.China

T: +86 21 34612525, Ext: 6104, M: +86 13482482211

www.enlogic.com


P please consider the environment before printing this email


This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to which they are addressed.  If you have received this e-mail in error, please notify the sender immediately and then delete it.  If you are not the intended recipient, you must not use, disclose or distribute this e-mail without the author's prior permission. We have taken precautions to minimize the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message.  We cannot accept liability for any loss or damage caused by software viruses.  Any views and/or opinions expressed in this e-mail are of the author only and do not necessarily represent the views of Enlogic.



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