WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] Maximum number of ring slots a packet can take up in netfron

To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Maximum number of ring slots a packet can take up in netfront/netback?
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Fri, 25 Apr 2008 22:17:00 +1000
Delivery-date: Fri, 25 Apr 2008 05:17:30 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcimzkMcxrjjWd5PRuOi+LAZoX9DAg==
Thread-topic: Maximum number of ring slots a packet can take up in netfront/netback?
Looking through the code for netback.c, I believe that the maximum
number of ring slots a network packet can take up is MAX_SKB_FRAGS = 18?

Is this the case? That would explain why I've been having so much
trouble with the windows PV drivers - they routinely put over 20 slots
on the ring.

James

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>
  • [Xen-devel] Maximum number of ring slots a packet can take up in netfront/netback?, James Harper <=