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i40e/i40evf: Simplify tunnel selection logic 

Use l4_tunnel type generically to keep code flow simple.

Change-ID: Ic52287e3b1ca4204e6b6e13431890c1a6ae9c422
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Anjali Singhai Jain 2015-02-27 09:15:29 +00:00 committed by Jeff Kirsher
parent 04294e38a4
commit 4599120466
2 changed files with 20 additions and 4 deletions
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12
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View File

@ -2216,8 +2216,16 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
struct iphdr *this_ip_hdr;
u32 network_hdr_len;
u8 l4_hdr = 0;
u32 l4_tunnel = 0;
if (skb->encapsulation) {
switch (ip_hdr(skb)->protocol) {
case IPPROTO_UDP:
l4_tunnel = I40E_TXD_CTX_UDP_TUNNELING;
break;
default:
return;
}
network_hdr_len = skb_inner_network_header_len(skb);
this_ip_hdr = inner_ip_hdr(skb);
this_ipv6_hdr = inner_ipv6_hdr(skb);
@ -2240,8 +2248,8 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
/* Now set the ctx descriptor fields */
*cd_tunneling |= (skb_network_header_len(skb) >> 2) <<
I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT |
I40E_TXD_CTX_UDP_TUNNELING |
I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT |
l4_tunnel |
((skb_inner_network_offset(skb) -
skb_transport_offset(skb)) >> 1) <<
I40E_TXD_CTX_QW0_NATLEN_SHIFT;

12
drivers/net/ethernet/intel/i40evf/i40e_txrx.c
View File

@ -1461,8 +1461,16 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
struct iphdr *this_ip_hdr;
u32 network_hdr_len;
u8 l4_hdr = 0;
u32 l4_tunnel = 0;
if (skb->encapsulation) {
switch (ip_hdr(skb)->protocol) {
case IPPROTO_UDP:
l4_tunnel = I40E_TXD_CTX_UDP_TUNNELING;
break;
default:
return;
}
network_hdr_len = skb_inner_network_header_len(skb);
this_ip_hdr = inner_ip_hdr(skb);
this_ipv6_hdr = inner_ipv6_hdr(skb);
@ -1485,8 +1493,8 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
/* Now set the ctx descriptor fields */
*cd_tunneling |= (skb_network_header_len(skb) >> 2) <<
I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT |
I40E_TXD_CTX_UDP_TUNNELING |
I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT |
l4_tunnel |
((skb_inner_network_offset(skb) -
skb_transport_offset(skb)) >> 1) <<
I40E_TXD_CTX_QW0_NATLEN_SHIFT;