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xen-devel
Re: [Xen-devel] [PATCH] Re-define PKT_PROT_LEN to be bigger.
On 12/14/2010 12:35 PM, Paul Durrant wrote:
> Re-define PKT_PROT_LEN to be big enough to handle maximal IPv4 and TCP
> options and phrase
> the definition so that it's reasonably obvious that's what it's for.
Which kernel are these for?
Thanks,
J
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
> ---
> drivers/xen/netback/netback.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/xen/netback/netback.c b/drivers/xen/netback/netback.c
> index c448675..1a4a20e 100644
> --- a/drivers/xen/netback/netback.c
> +++ b/drivers/xen/netback/netback.c
> @@ -128,7 +128,7 @@ static inline int netif_get_page_ext(struct page *pg,
> unsigned int *_group, unsi
> * packet processing on them (netfilter, routing, etc). 72 is enough
> * to cover TCP+IP headers including options.
> */
> -#define PKT_PROT_LEN 72
> +#define PKT_PROT_LEN (ETH_HLEN + 4 + (15 * 4) + (15 * 4))
>
> static inline pending_ring_idx_t pending_index(unsigned i)
> {
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