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bnx2x: fix L2-GRE TCP issues 

When configuring GRE tunnel using OVS, tcp stream is distributed over
all RSS queues which may cause TCP reordering. It happens since OVS
uses L2GRE protocol when kernel gre uses IPGRE.
Patch defaults gre tunnel to L2GRE which allows proper RSS for L2GRE
packets and (implicitly) disables RSS for IPGRE traffic.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Kravkov 2014-02-04 17:43:03 +02:00 committed by David S. Miller
parent fbd3a77d81
commit e8c37aff2a
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
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@ -936,7 +936,7 @@ static inline int bnx2x_func_start(struct bnx2x *bp)
else /* CHIP_IS_E1X */
start_params->network_cos_mode = FW_WRR;
start_params->gre_tunnel_mode = IPGRE_TUNNEL;
start_params->gre_tunnel_mode = L2GRE_TUNNEL;
start_params->gre_tunnel_rss = GRE_INNER_HEADERS_RSS;
return bnx2x_func_state_change(bp, &func_params);