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Commit 1b4fc0e2 authored by Dmitry Kravkov's avatar Dmitry Kravkov Committed by David S. Miller
Browse files

bnx2x: fix tunneling CSUM calculation 



Since commit c957d09f
"bnx2x: Remove sparse and coccinelle warnings"
driver provided wrong partial csum for HW in tunneing
scenarios.

Reported-by: default avatarEric 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: default avatarDmitry Kravkov <dmitry@broadcom.com>
Tested-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a8798a5c

drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c

+3 −3
Original line number Diff line number Diff line
@@ -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));