Can i use dev_queue_xmit

Can i use dev_queue_xmit

[K.Anantha Kiran]

 We are supposed to build a kernel module which takes packets in the
 internet through one interface and forward them to another interface of
 my choice based on the IP,Port feilds in the packet.

Our module is working fine for less rate(200Mbps) of traffic.If speed is 
increasing(>200Mbps), for some packets "dev_queue_xmit()" is returning NET_XMIT_DROP due to which packets are being dropped.

 Can u suggest any solution. Can u give the reason for that return value
 only for high traffic.Is there any speed restiction to dev_queue_xmit() 
We are using Gigbyte traffic ethrtnet cards.

Thanks in advance,
K.AnanthaKiran

Re: Can i use dev_queue_xmit

[Armen Kaleshian]

Why don't you look at the source for iptables? Or use iptables instead of writing the kernel module from scratch?

Good luck!

On Tue, Apr 06, 2004 at 07:50:50PM +0530, K.Anantha Kiran wrote:
: 
:  We are supposed to build a kernel module which takes packets in the
:  internet through one interface and forward them to another interface of
:  my choice based on the IP,Port feilds in the packet.
: 
: Our module is working fine for less rate(200Mbps) of traffic.If speed is 
: increasing(>200Mbps), for some packets "dev_queue_xmit()" is returning NET_XMIT_DROP due to which packets are being dropped.
: 
:  Can u suggest any solution. Can u give the reason for that return value
:  only for high traffic.Is there any speed restiction to dev_queue_xmit() 
: We are using Gigbyte traffic ethrtnet cards.
: 
: Thanks in advance,
: K.AnanthaKiran
: 
: 
: 
: -
: To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
: the body of a message to majordomo@vger.kernel.org
: More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: Can i use dev_queue_xmit

[K.Anantha Kiran]

 
 
 Anyway we have written a module,
   If you know any idea about our problem,(dropping packets due to 
 NET_XMIT_DROP return value of dev_queue_xmit()) can u help us.Atleast 
 suggest a source where we can get answer for my problem.
   We want to know the situation(or)Reason when NET_XMIT_DROP will be 
returned.
 
 Thanks,
 K.AnanthaKiran
 
> On Tue, 6 Apr 2004, Armen Kaleshian wrote:
> 
> > Date: Tue, 6 Apr 2004 12:55:29 -0400
> > From: Armen Kaleshian <akaleshian@kriation.com>
> > To: K.Anantha Kiran <ananth@cse.iitk.ac.in>
> > Cc: linux-c-programming@vger.kernel.org
> > Subject: Re: Can i use dev_queue_xmit
> > 
> > Why don't you look at the source for iptables? Or use iptables instead of writing the kernel module from scratch?
> > 
> > Good luck!
> > 
> > On Tue, Apr 06, 2004 at 07:50:50PM +0530, K.Anantha Kiran wrote:
> > : 
> > :  We are supposed to build a kernel module which takes packets in the
> > :  internet through one interface and forward them to another interface of
> > :  my choice based on the IP,Port feilds in the packet.
> > : 
> > : Our module is working fine for less rate(200Mbps) of traffic.If speed is 
> > : increasing(>200Mbps), for some packets "dev_queue_xmit()" is returning NET_XMIT_DROP due to which packets are being dropped.
> > : 
> > :  Can u suggest any solution. Can u give the reason for that return value
> > :  only for high traffic.Is there any speed restiction to dev_queue_xmit() 
> > : We are using Gigbyte traffic ethrtnet cards.
> > : 
> > : Thanks in advance,
> > : K.AnanthaKiran
> > : 
> > : 
> > : 
> > : -
> > : To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
> > : the body of a message to majordomo@vger.kernel.org
> > : More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > 
> 
>