From: "Singh, Aman Deep" <aman.deep.singh@intel.com>
To: Zhichao Zeng <zhichaox.zeng@intel.com>, <dev@dpdk.org>
Cc: <qi.z.zhang@intel.com>, <ke1.xu@intel.com>,
Yuying Zhang <yuying.zhang@intel.com>
Subject: Re: [PATCH 2/4] app/testpmd: support UFO in checksum engine
Date: Thu, 1 Jun 2023 17:28:38 +0530 [thread overview]
Message-ID: <be31a161-eabf-e93f-243f-b06a5041f2b4@intel.com> (raw)
In-Reply-To: <20230413053426.4190965-1-zhichaox.zeng@intel.com>
On 4/13/2023 11:04 AM, Zhichao Zeng wrote:
> This commit supports UFO for both non-tunnel and tunneled packets.
>
> Similar to TSO, the command "tso set <tso_segsz> <port_id>" or
> "tunnel_tso set <tso_segsz> <port_id>" is used to enable UFO,
> and the following conditions need to be met:
> a. The NIC supports UFO;
> b. For enabling UFO in tunnel packets, "csum parse_tunnel" must be set to
> recognize tunnel packets;
> c. For IPv4 tunnel packets, "csum set outer-ip" must be set to hw, because
> UFO changes the total_len of the external IP header and the checksum
> calculated by SW becomes incorrect; This is not necessary for IPv6
> tunnel packets since there's no checksum field to fill in.
>
> Signed-off-by: Zhichao Zeng <zhichaox.zeng@intel.com>
Acked-by: Aman Singh <aman.deep.singh@intel.com>
<snip>
prev parent reply other threads:[~2023-06-01 11:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-13 5:34 Zhichao Zeng
2023-06-01 11:58 ` Singh, Aman Deep [this message]
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