On Tue, Jan 31, 2017 at 9:09 PM, John Fastabend
wrote:
>> If I understand correctly, the difficulty lies in v3 requiring that the
>> timer "close" the block when the timer expires. That may not be worth
>> implementing, indeed.
>>
>
> Yep that is where I just gave up and decided it wasn't worth i
On 2017年01月28日 05:33, John Fastabend wrote:
This adds ndo ops for upper layer objects to request direct DMA from
the network interface into memory "slots". The slots must be DMA'able
memory given by a page/offset/size vector in a packet_ring_buffer
structure.
The PF_PACKET socket interface can
On 17-01-30 05:31 PM, Willem de Bruijn wrote:
V3 header formats added bulk polling via socket calls and timers
used in the polling interface to return every n milliseconds. Currently,
I don't see any way to support this in hardware because we can't
know if the hardware is in the
[...]
>>>
The ndo operations and new socket option PACKET_RX_DIRECT work by
giving a queue_index to run the direct dma operations over. Once
setsockopt returns successfully the indicated queue is mapped
directly to the requesting application and can not be used for
othe
(next submission fix subj. ineterface -> interface)
On Mon, 30 Jan 2017 13:51:55 -0800
John Fastabend wrote:
> On 17-01-30 10:16 AM, Jesper Dangaard Brouer wrote:
> > On Fri, 27 Jan 2017 13:33:44 -0800 John Fastabend
> > wrote:
> >
> >> This adds ndo ops for upper layer objects to request
>>> V3 header formats added bulk polling via socket calls and timers
>>> used in the polling interface to return every n milliseconds. Currently,
>>> I don't see any way to support this in hardware because we can't
>>> know if the hardware is in the middle of a DMA operation or not
>>> on a slot. S
On 17-01-30 10:16 AM, Jesper Dangaard Brouer wrote:
> On Fri, 27 Jan 2017 13:33:44 -0800 John Fastabend
> wrote:
>
>> This adds ndo ops for upper layer objects to request direct DMA from
>> the network interface into memory "slots". The slots must be DMA'able
>> memory given by a page/offset/siz
On Fri, 27 Jan 2017 13:33:44 -0800 John Fastabend
wrote:
> This adds ndo ops for upper layer objects to request direct DMA from
> the network interface into memory "slots". The slots must be DMA'able
> memory given by a page/offset/size vector in a packet_ring_buffer
> structure.
>
> The PF_PAC
This adds ndo ops for upper layer objects to request direct DMA from
the network interface into memory "slots". The slots must be DMA'able
memory given by a page/offset/size vector in a packet_ring_buffer
structure.
The PF_PACKET socket interface can use these ndo_ops to do zerocopy
RX from the ne
