Re: [Xen-devel] [PATCH] xen-netfront: Fix handling packets on compound pages with skb_linearize

2014-12-09 Thread Luis Henriques
On Mon, Dec 08, 2014 at 11:11:15AM +, David Vrabel wrote: > On 08/12/14 10:19, Luis Henriques wrote: > > On Mon, Dec 01, 2014 at 09:55:24AM +0100, Stefan Bader wrote: > >> On 11.08.2014 19:32, Zoltan Kiss wrote: > >>> There is a long known problem with the netfront/netback interface: if the >

Re: [Xen-devel] [PATCH] xen-netfront: Fix handling packets on compound pages with skb_linearize

2014-12-08 Thread David Vrabel
On 08/12/14 10:19, Luis Henriques wrote: > On Mon, Dec 01, 2014 at 09:55:24AM +0100, Stefan Bader wrote: >> On 11.08.2014 19:32, Zoltan Kiss wrote: >>> There is a long known problem with the netfront/netback interface: if the >>> guest >>> tries to send a packet which constitues more than MAX_SKB_

Re: [Xen-devel] [PATCH] xen-netfront: Fix handling packets on compound pages with skb_linearize

2014-12-08 Thread Luis Henriques
On Mon, Dec 01, 2014 at 09:55:24AM +0100, Stefan Bader wrote: > On 11.08.2014 19:32, Zoltan Kiss wrote: > > There is a long known problem with the netfront/netback interface: if the > > guest > > tries to send a packet which constitues more than MAX_SKB_FRAGS + 1 ring > > slots, > > it gets dropp

Re: [Xen-devel] [PATCH] xen-netfront: Fix handling packets on compound pages with skb_linearize

2014-12-01 Thread Stefan Bader
On 01.12.2014 14:59, Zoltan Kiss wrote: > > > On 01/12/14 13:36, David Vrabel wrote: >> On 01/12/14 08:55, Stefan Bader wrote: >>> On 11.08.2014 19:32, Zoltan Kiss wrote: There is a long known problem with the netfront/netback interface: if the guest tries to send a packet which c

Re: [Xen-devel] [PATCH] xen-netfront: Fix handling packets on compound pages with skb_linearize

2014-12-01 Thread Zoltan Kiss
On 01/12/14 13:36, David Vrabel wrote: On 01/12/14 08:55, Stefan Bader wrote: On 11.08.2014 19:32, Zoltan Kiss wrote: There is a long known problem with the netfront/netback interface: if the guest tries to send a packet which constitues more than MAX_SKB_FRAGS + 1 ring slots, it gets dropped

Re: [Xen-devel] [PATCH] xen-netfront: Fix handling packets on compound pages with skb_linearize

2014-12-01 Thread David Vrabel
On 01/12/14 08:55, Stefan Bader wrote: > On 11.08.2014 19:32, Zoltan Kiss wrote: >> There is a long known problem with the netfront/netback interface: if the >> guest >> tries to send a packet which constitues more than MAX_SKB_FRAGS + 1 ring >> slots, >> it gets dropped. The reason is that netba

Re: [Xen-devel] [PATCH] xen-netfront: Fix handling packets on compound pages with skb_linearize

2014-12-01 Thread Stefan Bader
On 11.08.2014 19:32, Zoltan Kiss wrote: > There is a long known problem with the netfront/netback interface: if the > guest > tries to send a packet which constitues more than MAX_SKB_FRAGS + 1 ring > slots, > it gets dropped. The reason is that netback maps these slots to a frag in the > frags a