From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Alan Shih" Subject: FW: Limit skb to be less than 64K with TSO Date: Tue, 22 Jul 2003 10:18:32 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: To: Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org I am lost at the following situation: Env: I am writing driver + smart NIC's firmware. The smart NIC has limited memory. It can do checksum and TSO but with 32K max. Problem: SKB may be 64K in size when it reaches the driver. I cannot push all 64K to the NIC to do checksum. Is there a way to limit the network stack to give me only 32K or smaller segments? If I do checksum in the main processor, it defeats the purpose. TIA Alan