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bnx2x: fix tunneling CSUM calculation

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Since commit c957d09ffd
"bnx2x: Remove sparse and coccinelle warnings"
driver provided wrong partial csum for HW in tunneing
scenarios.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Pravin Shelar <pshelar@nicira.com>
CC: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Tested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Kravkov 2013-07-11 15:48:21 +03:00 committed by David S. Miller
parent a8798a5c77
commit 1b4fc0e249
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
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@ -3543,9 +3543,9 @@ static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb,
/* outer IP header info */
if (xmit_type & XMIT_CSUM_V4) {
struct iphdr *iph = ip_hdr(skb);
u16 csum = (__force u16)(~iph->check) -
(__force u16)iph->tot_len -
(__force u16)iph->frag_off;
u32 csum = (__force u32)(~iph->check) -
(__force u32)iph->tot_len -
(__force u32)iph->frag_off;
pbd2->fw_ip_csum_wo_len_flags_frag =
bswab16(csum_fold((__force __wsum)csum));