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Commit 117401ee authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
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bnx2x: add TSO support for IPIP 



bnx2x driver already handles TSO for GRE, current code
is the same for IPIP.

Performance results : (Note we are now limited by receiver,
as it does not support GRO for IPIP yet)

Before patch :

lpq83:~# ./netperf -H 7.7.9.84 -Cc
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.9.84 () port 0 AF_INET
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      7710.19   4.52     6.62     1.152   1.687

After patch :

lpq83:~# ./netperf -H 7.7.9.84 -Cc
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.9.84 () port 0 AF_INET
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      8532.40   2.55     7.73     0.588   1.781

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cb32f511

drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c

+3 −1
Original line number Diff line number Diff line
@@ -12260,10 +12260,12 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev, 
		NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_GRO |

		NETIF_F_RXHASH | NETIF_F_HW_VLAN_CTAG_TX;

	if (!CHIP_IS_E1x(bp)) {

		dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL;

		dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL |

				    NETIF_F_GSO_IPIP;

		dev->hw_enc_features =

			NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |

			NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 |

			NETIF_F_GSO_IPIP |

			NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL;

	}