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From: "Seong Moon" <seong@etri.re.kr>
To: <netdev@oss.sgi.com>
Subject: dev->hard_header ?
Date: Wed, 20 Nov 2002 11:46:20 +0900	[thread overview]
Message-ID: <005201c2903f$37e88580$21abfe81@seong> (raw)

In Layer 3 Protocols(eg. IP, IPv6, ...),
they calls dev_queue_xmit() to send their data.

Before calling dev_queue_xmit(),
does the layer 3 protocols always call dev->hard_header ?

Actually, I'm not sure when dev->hard_header is called.

I think dev->hard_start_xmit can include the part of dev->hard_header.
Why did the developer seperate the header building and sending frame
fucntion ?

thanks in advance.

             reply	other threads:[~2002-11-20  2:46 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-20  2:46 Seong Moon [this message]
2002-11-20  5:06 ` dev->hard_header ? Ben Greear

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