what is the significance of using two hash flow tables, kernel space and user 
space?
can you please point out method where the packet verdict ( drop / normal ) is 
taken after flow match ?

Thanks
--Mandar
?



 



-----Original Message-----
From: Ben Pfaff <[email protected]>
To: [email protected]
Cc: [email protected]
Sent: 14-Apr-2010 12:06:30 +0000
Subject: Re: [ovs-discuss] flow hash calculation in open vswitch.

 
 
 
On Wed, Apr 14, 2010 at 02:38:00AM -0400, [email protected] wrote: 
>  We are trying to control FTP traffic and for that we need support of port 
 
range. 
> We have updated? struct odp_flow_key and struct ofp_match to support port  
range ( for eg: 'tp_src'? as lower port limit and 'tp_src1' as upper port  
limit). 
> The memcmp of flow key is been replaced by individual struct member 
compare  
with an extra? port range bound check. 
> Still we are few steps short, can you suggest where else is the changes 
are  
needed ? 
 
A hash table cannot support range matches, so you will need to adopt a 
new data structure. 
 
 

  

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