Commit e8c37aff authored Feb 04, 2014 by Dmitry Kravkov Committed by David S. Miller Feb 04, 2014

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>

parent fbd3a77d

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

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -936,7 +936,7 @@ static inline int bnx2x_func_start(struct bnx2x *bp)
	else /* CHIP_IS_E1X */		else /* CHIP_IS_E1X */
	start_params->network_cos_mode = FW_WRR;		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;		start_params->gre_tunnel_rss = GRE_INNER_HEADERS_RSS;

	return bnx2x_func_state_change(bp, &func_params);		return bnx2x_func_state_change(bp, &func_params);