On Fri, 2005-05-20 at 14:24 +0100, Dan Searle wrote:
> Hi,
>
> See comments below....
>
> Friday, May 20, 2005, 1:51:04 PM, you wrote:
>
> >> I've been looking, and would it be a good idea to return: NET_XMIT_CN
> >> from esp_output() and/or esp_input() if I have to drop the frame
> >> because the HW crypto engine's queue is full?
> >>
> >> It looks that way, but I have no idea if the caller to esp_output()
> >> and/or esp_input() know how to react to NET_XMIT_CN.
>
> > With UDP NET_XMIT_CN will be transformed into -ENOBUFS.
> > As far as i know only qdisc can return it now.
>
> So, if I'm in esp_output() and need to drop an skb, I should:
>
> dropskb:
> kfree_skb(skb);
> return NET_XMIT_DROP;
>
> And if I'm in esp_input() and need to drop an skb, I should:
>
> dropskb:
> kfree_skb(skb);
> return NET_RX_DROP;
>
> Please advise, regards, Dan...
Yes.
Or return negative error value.
> --
>
> Dan Searle
> Adelix Ltd
> dan.searle@xxxxxxxxxx web: www.adelix.com
> tel: 0845 230 9590 / fax: 0845 230 9591 / support: 0845 230 9592
> snail: The Old Post Office, Bristol Rd, Hambrook, Bristol BS16 1RY. UK.
>
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--
Evgeniy Polyakov
Crash is better than data corruption -- Arthur Grabowski
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