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SubjectRe: [PATCH] virtio_net: free transmit skbs in a timer
Rusty Russell wrote:
>> We should have thought of this before, though, especially as Xen does
>>
>> this or something very similar:
>>
>>> /* Shared ring page */ \
>>> struct __name##_sring { \
>>> RING_IDX req_prod, req_event; \
>>> RING_IDX rsp_prod, rsp_event; \
>>> uint8_t pad[48]; \
>>> union __name##_sring_entry ring[1]; /* variable-length */ \
>>> }; \
>>>
>> req_event and rsp_event allow the other side to indicate when it wants a
>> notification.
>>
>
> Well, we do have such a thing, in the ring suppression flags.

Can you point me at this?

> Note that DaveM
> is talking about moving network tx queue into the net drivers themselves,
> which will make them much more efficient (ie. drain entire queue before
> kick), which may again change the balance of what the Right Thing is.
>

That depends on whether Linux knows whether more packets are coming.

--
error compiling committee.c: too many arguments to function



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