From: David Miller <davem@davemloft.net>
To: tariqt@mellanox.com
Cc: netdev@vger.kernel.org, eranbe@mellanox.com, mariap@mellanox.com
Subject: Re: [PATCH net-next] net: ipv6_gre: Fix GRO to work on IPv6 over GRE tap
Date: Thu, 09 Aug 2018 14:08:10 -0700 (PDT) [thread overview]
Message-ID: <20180809.140810.1435534399922642865.davem@davemloft.net> (raw)
In-Reply-To: <1533717990-25365-1-git-send-email-tariqt@mellanox.com>
From: Tariq Toukan <tariqt@mellanox.com>
Date: Wed, 8 Aug 2018 11:46:30 +0300
> IPv6 GRO over GRE tap is not working while GRO is not set
> over the native interface.
...
> This patch removes the override of the hard_header_len, and
> assigns the calculated value to needed_headroom.
> This way, the comparison in gro_list_prepare is really of
> the mac headers, and if the packets have the same mac headers
> the same_flow will be set to 1.
>
> Performance testing: 45% higher bandwidth.
> Measuring bandwidth of single-stream IPv4 TCP traffic over IPv6
> GRE tap while GRO is not set on the native.
> NIC: ConnectX-4LX
> Before (GRO not working) : 7.2 Gbits/sec
> After (GRO working): 10.5 Gbits/sec
>
> Signed-off-by: Maria Pasechnik <mariap@mellanox.com>
> Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Applied, thank you.
prev parent reply other threads:[~2018-08-09 23:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-08 8:46 [PATCH net-next] net: ipv6_gre: Fix GRO to work on IPv6 over GRE tap Tariq Toukan
2018-08-09 21:08 ` David Miller [this message]
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