diff options
| author | Wei Liu <wei.liu2@citrix.com> | 2013-04-21 22:20:41 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-22 15:37:01 -0400 |
| commit | 9ecd1a75d977e2e8c48139c7d3efed183f898d94 (patch) | |
| tree | daba39f085896184b65d1724e5441cda6ee213a5 /include | |
| parent | 697089dc13c52d668322ac6cb8548520de27ed0e (diff) | |
xen-netfront: reduce gso_max_size to account for max TCP header
The maximum packet including header that can be handled by netfront / netback
wire format is 65535. Reduce gso_max_size accordingly.
Drop skb and print warning when skb->len > 65535. This can 1) save the effort
to send malformed packet to netback, 2) help spotting misconfiguration of
netfront in the future.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/xen/interface/io/netif.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h index 9dfc12000980..58fadcac33a1 100644 --- a/include/xen/interface/io/netif.h +++ b/include/xen/interface/io/netif.h | |||
| @@ -47,6 +47,7 @@ | |||
| 47 | #define _XEN_NETTXF_extra_info (3) | 47 | #define _XEN_NETTXF_extra_info (3) |
| 48 | #define XEN_NETTXF_extra_info (1U<<_XEN_NETTXF_extra_info) | 48 | #define XEN_NETTXF_extra_info (1U<<_XEN_NETTXF_extra_info) |
| 49 | 49 | ||
| 50 | #define XEN_NETIF_MAX_TX_SIZE 0xFFFF | ||
| 50 | struct xen_netif_tx_request { | 51 | struct xen_netif_tx_request { |
| 51 | grant_ref_t gref; /* Reference to buffer page */ | 52 | grant_ref_t gref; /* Reference to buffer page */ |
| 52 | uint16_t offset; /* Offset within buffer page */ | 53 | uint16_t offset; /* Offset within buffer page */ |