diff options
| author |   David L Stevens <david.stevens@oracle.com> | 2014-09-29 19:48:18 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-09-30 17:10:39 -0400 |
| commit | 42db672dca5b74f9c85c318b74b3b298e86cbe8e (patch) | |
| tree | 01d6e63b6aca18dd889f0a3e6030028ad9ff019b /drivers/net/ethernet/sun/sunvnet.h | |
| parent | sunvnet: make transmit path zero-copy in the kernel (diff) | |
| download | linux-dev-42db672dca5b74f9c85c318b74b3b298e86cbe8e.tar.xz linux-dev-42db672dca5b74f9c85c318b74b3b298e86cbe8e.zip | |
sunvnet: allow admin to set sunvnet MTU
This patch allows an admin to set the MTU on a sunvnet device to arbitrary
values between the minimum (68) and maximum (65535) IPv4 packet sizes.
Signed-off-by: David L Stevens <david.stevens@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/sun/sunvnet.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sun/sunvnet.h b/drivers/net/ethernet/sun/sunvnet.h index 02f507db9951..c91104542619 100644 --- a/drivers/net/ethernet/sun/sunvnet.h +++ b/drivers/net/ethernet/sun/sunvnet.h @@ -16,7 +16,7 @@ */ #define VNET_CLEAN_TIMEOUT ((HZ/100)+1) -#define VNET_MAXPACKET 1518ULL /* ETH_FRAMELEN + VLAN_HDR */ +#define VNET_MAXPACKET (65535ULL + ETH_HLEN + VLAN_HLEN) #define VNET_TX_RING_SIZE 512 #define VNET_TX_WAKEUP_THRESH(dr) ((dr)->pending / 4) @@ -26,10 +26,12 @@ */ #define VNET_PACKET_SKIP 6 +#define VNET_MAXCOOKIES (VNET_MAXPACKET/PAGE_SIZE + 1) + struct vnet_tx_entry { struct sk_buff *skb; unsigned int ncookies; - struct ldc_trans_cookie cookies[2]; + struct ldc_trans_cookie cookies[VNET_MAXCOOKIES]; }; struct vnet; |