From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Tiago Lam <tiago.lam@intel.com>, dev@dpdk.org
Cc: linville@tuxdriver.com
Subject: Re: [dpdk-dev] [PATCH] net/af_packet: add docs guide
Date: Tue, 18 Dec 2018 00:31:46 +0000 [thread overview]
Message-ID: <772600cf-63c7-7a40-cc33-686a9df39083@intel.com> (raw)
In-Reply-To: <1545038062-35465-1-git-send-email-tiago.lam@intel.com>
On 12/17/2018 9:14 AM, Tiago Lam wrote:
> As of commit 364e08f2bbc0, DPDK allows an aplication to send and receive
> raw packets using an AF_PACKET and PACKET_MMAP, when using a Linux
> Kernel. This complements it by adding a simple guide with the following
> information:
> - An introduction, where a brief explanation of this driver is given,
> pointing out the dependency on PACKET_MMAP;
> - Which options are supported at configuration time, while setting up an
> interface, and it's inherent limitations;
> - What the prerequisites are;
> - A command line example of how to set up a DPDK port using the
> af_packet driver.
>
> Since there's a dependency in PACKET_MMAP, the guide also points to the
> original Kernel documentation, so the reader can get more details.
>
> Signed-off-by: Tiago Lam <tiago.lam@intel.com>
Thanks Tiago, appreciated.
> ---
> doc/guides/nics/af_packet.rst | 67 +++++++++++++++++++++++++++++++++++++++++++
index file (doc/guides/nics/index.rst) also needs to be updated to include new
doc, I can update this while merging.
<...>
> +Options and inherent limitations
> +--------------------------------
> +
> +The following options can be provided to set up an af_packet port in DPDK.
> +Some of these, in turn, will be used to configure the PAKET_MMAP settings.
> +
> +* "iface" - name of the Kernel interface to attach to (required);
> +* "qpairs" - number of Rx and Tx queues (optional, default 1);
> +* "qdisc_bypass" - set PACKET_QDISC_BYPASS option in AF_PACKET (optional,
> + disabled by default);
> +* "blocksz" - PACKET_MMAP block size (optional, default 4096);
> +* "framesz" - PACKET_MMAP frame size (optional, default 2048B; Note: multiple
> + of 16B);
> +* "framecnt" - PACKET_MMAP frame count (optional, default 512B).
using `` instead of " highlights the text, I can update this while merging.
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
next prev parent reply other threads:[~2018-12-18 0:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-17 9:14 Tiago Lam
2018-12-18 0:31 ` Ferruh Yigit [this message]
2018-12-18 0:39 ` Ferruh Yigit
2018-12-18 8:23 ` Lam, Tiago
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