Re: [Xen-devel] [PATCH v4 2/3] public/io/netif.h: document control ring and toeplitz hashing

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 08/01/16 16:21, Paul Durrant wrote:
>> -----Original Message-----
>> From: David Vrabel [mailto:david.vrabel@xxxxxxxxxx]
>> Sent: 08 January 2016 16:07
>> To: Paul Durrant; xen-devel@xxxxxxxxxxxxxxxxxxxx
>> Cc: Keir (Xen.org); Ian Campbell; Tim (Xen.org); Ian Jackson; Jan Beulich
>> Subject: Re: [Xen-devel] [PATCH v4 2/3] public/io/netif.h: document control
>> ring and toeplitz hashing
>>
>> On 07/01/16 13:05, Paul Durrant wrote:
>>> This patch documents a new shared ring between frontend and backend
>> that
>>> can be used to pass bulk out-of-band data, such as that required to
>>> implement toeplitz hashing in the backend such that it is configurable by
>>> the frontend.
>>>
>>> The patch then goes on to document the messages passed over the control
>>> ring that can be used to configure toeplitz hashing.
>> [...]
>>> --- a/xen/include/public/io/netif.h
>>> +++ b/xen/include/public/io/netif.h
>>> @@ -151,6 +151,270 @@
>>>   */
>>>
>>>  /*
>>> + * Control ring
>>> + * ============
>> [...]
>>> + * The frontend provides a control ring to the backend by setting:
>>> + *
>>> + * /local/domain/<domid>/device/vif/<vif>/ctrl-ring-ref = <gref>
>>> + * /local/domain/<domid>/device/vif/<vif>/event-channel-ctrl = <port>
>>
>> ctrl-event-channel to match ctrl-ring-ref?
>>
> 
> I was following the style of the tx and rx rings where it is 'blah-ring-ref' 
> and 'event-channel-blah'. Do you think I should break precedent?

I hadn't noticed that.  Either way is fine by me then.

David

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