zero-copy for Braodcom

jiaying zhang jiayingz at
Tue Aug 27 16:19:00 CDT 2002

Hello. I have two Broadcom BCM5701 cards integrated in my Dell's 
motherboard. I want to test it's performance in zero-copy situation. So 
I turned on scatter-gather and checksum offload. The  MTU is set as 
1500. The Linux kernel version I am using is 2.4.7-10, which includes a 
2.0.18 BCM5700 driver. But I found when I tried to use sendfile syscall 
to send a file, the network was down. Could anyone give me some hints 
about this? Thanks a lot.


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