Messages in this thread | | | Date | Tue, 6 Mar 2001 02:17:31 +0530 (IST) | From | Sourav Sen <> | Subject | sk_buff in 2.4.0 |
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Hi, As far as I understand, in 2.2.x networking code the protocol header and data used to reside in a contiguous region in memory(pointed to by the head, data, tail, end of sk_buff struct), ie skb->data is the starting point and skb->tail is the ending point.
| | | | skb->data -- |-------------- | | | | | | | | | | | skb->tail -- |---------------| | |
And the device drivers used to transfer from skb->data to skb->tail(==skb->len).
My question is: Is the state of the art same in 2.4.0, ie. is protocol header and data still has to reside contiguously? Or header and data may be non-contiguous and the driver does scatter/gather.
I am starting off in 2.4.0 , plz. help.
-- sourav -------------------------------------------------------------------------------- SOURAV SEN MSc(Engg.) CSA IISc BANGALORE URL : www2.csa.iisc.ernet.in/~sourav ROOM NO : N-78 TEL :(080)309-2454(HOSTEL) (080)309-2906 (COMP LAB) --------------------------------------------------------------------------------
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