Displaying 20 results from an estimated 162 matches for "dmas".
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2014 Mar 07
5
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
We used to stop the handling of tx when the number of pending DMAs
exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
of both host and guest. But it was too aggressive in some cases, since
any delay or blocking of a single packet may delay or block the guest
transmission. Consider the following setup:
+-----+ +-----+
| VM1 |...
2014 Mar 07
5
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
We used to stop the handling of tx when the number of pending DMAs
exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
of both host and guest. But it was too aggressive in some cases, since
any delay or blocking of a single packet may delay or block the guest
transmission. Consider the following setup:
+-----+ +-----+
| VM1 |...
2014 Feb 25
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
We used to stop the handling of tx when the number of pending DMAs
exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
of both host and guest. But it was too aggressive in some cases, since
any delay or blocking of a single packet may delay or block the guest
transmission. Consider the following setup:
+-----+ +-----+
| VM1 |...
2014 Feb 25
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
We used to stop the handling of tx when the number of pending DMAs
exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
of both host and guest. But it was too aggressive in some cases, since
any delay or blocking of a single packet may delay or block the guest
transmission. Consider the following setup:
+-----+ +-----+
| VM1 |...
2014 Feb 25
0
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
> We used to stop the handling of tx when the number of pending DMAs
> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
> of both host and guest. But it was too aggressive in some cases, since
> any delay or blocking of a single packet may delay or block the guest
> transmission. Consider the following setup:
>
> +-----+...
2014 Mar 07
0
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
From: Jason Wang <jasowang at redhat.com>
Date: Fri, 7 Mar 2014 13:28:27 +0800
> This is because the delay added by htb may lead the delay the finish
> of DMAs and cause the pending DMAs for tap0 exceeds the limit
> (VHOST_MAX_PEND). In this case vhost stop handling tx request until
> htb send some packets. The problem here is all of the packets
> transmission were blocked even if it does not go to VM2.
Isn't this essentially head of line bl...
2014 Feb 26
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
> On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
>> We used to stop the handling of tx when the number of pending DMAs
>> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>> of both host and guest. But it was too aggressive in some cases, since
>> any delay or blocking of a single packet may delay or block the guest
>> transmission. Consider the following setup:
>>...
2014 Feb 26
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
> On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
>> We used to stop the handling of tx when the number of pending DMAs
>> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>> of both host and guest. But it was too aggressive in some cases, since
>> any delay or blocking of a single packet may delay or block the guest
>> transmission. Consider the following setup:
>>...
2014 Mar 13
3
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 03/10/2014 04:03 PM, Michael S. Tsirkin wrote:
> On Fri, Mar 07, 2014 at 01:28:27PM +0800, Jason Wang wrote:
>> > We used to stop the handling of tx when the number of pending DMAs
>> > exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>> > of both host and guest. But it was too aggressive in some cases, since
>> > any delay or blocking of a single packet may delay or block the guest
>> > transmission. Consider the follow...
2014 Mar 13
3
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 03/10/2014 04:03 PM, Michael S. Tsirkin wrote:
> On Fri, Mar 07, 2014 at 01:28:27PM +0800, Jason Wang wrote:
>> > We used to stop the handling of tx when the number of pending DMAs
>> > exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>> > of both host and guest. But it was too aggressive in some cases, since
>> > any delay or blocking of a single packet may delay or block the guest
>> > transmission. Consider the follow...
2014 Mar 10
0
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
On Fri, Mar 07, 2014 at 01:28:27PM +0800, Jason Wang wrote:
> We used to stop the handling of tx when the number of pending DMAs
> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
> of both host and guest. But it was too aggressive in some cases, since
> any delay or blocking of a single packet may delay or block the guest
> transmission. Consider the following setup:
>
> +-----+...
2014 Feb 26
0
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 2014/2/26 13:53, Jason Wang wrote:
> On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
>> On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
>>> We used to stop the handling of tx when the number of pending DMAs
>>> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>>> of both host and guest. But it was too aggressive in some cases, since
>>> any delay or blocking of a single packet may delay or block the guest
>>> transmission. Consider the following...
2012 Sep 14
1
Plotting DMAs (Direct Marketing Areas)
Hey useRs!
Do any of you guys know how to plot DMAs within R (preferrably within the
maps() package)? I haven't been able to find any resources on this, but I
apologize if this is a dumb question and I'm overlooking the obvious
answer. Thanks for your help!
Josh
[[alternative HTML version deleted]]
2014 Feb 26
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 02/26/2014 02:32 PM, Qin Chuanyu wrote:
> On 2014/2/26 13:53, Jason Wang wrote:
>> On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
>>> On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
>>>> We used to stop the handling of tx when the number of pending DMAs
>>>> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>>>> of both host and guest. But it was too aggressive in some cases, since
>>>> any delay or blocking of a single packet may delay or block the guest
>>>> transmission. Conside...
2014 Feb 26
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 02/26/2014 02:32 PM, Qin Chuanyu wrote:
> On 2014/2/26 13:53, Jason Wang wrote:
>> On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
>>> On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
>>>> We used to stop the handling of tx when the number of pending DMAs
>>>> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>>>> of both host and guest. But it was too aggressive in some cases, since
>>>> any delay or blocking of a single packet may delay or block the guest
>>>> transmission. Conside...
2014 Mar 17
0
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 03/13/2014 09:28 AM, Jason Wang wrote:
> On 03/10/2014 04:03 PM, Michael S. Tsirkin wrote:
>> On Fri, Mar 07, 2014 at 01:28:27PM +0800, Jason Wang wrote:
>>>> We used to stop the handling of tx when the number of pending DMAs
>>>> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>>>> of both host and guest. But it was too aggressive in some cases, since
>>>> any delay or blocking of a single packet may delay or block the guest
>>>> transmission. Conside...
2014 Feb 26
0
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
...02:32 PM, Qin Chuanyu wrote:
> >On 2014/2/26 13:53, Jason Wang wrote:
> >>On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
> >>>On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
> >>>>We used to stop the handling of tx when the number of pending DMAs
> >>>>exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
> >>>>of both host and guest. But it was too aggressive in some cases, since
> >>>>any delay or blocking of a single packet may delay or block the guest
> >>>>trans...
2014 Feb 27
1
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
...n Wang wrote:
>>>> > >>On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
>>>>> > >>>On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
>>>>>> > >>>>We used to stop the handling of tx when the number of pending DMAs
>>>>>> > >>>>exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>>>>>> > >>>>of both host and guest. But it was too aggressive in some cases, since
>>>>>> > >>>>any delay or blocking...
2014 Feb 27
1
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
...n Wang wrote:
>>>> > >>On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
>>>>> > >>>On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
>>>>>> > >>>>We used to stop the handling of tx when the number of pending DMAs
>>>>>> > >>>>exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>>>>>> > >>>>of both host and guest. But it was too aggressive in some cases, since
>>>>>> > >>>>any delay or blocking...
2016 Aug 30
1
[PATCH v8 14/18] ARM: STi: DT: STiH407: Add uniperif player dt nodes
...amp;clk_s_d0_quadfs 0>, <&clk_s_d0_flexgen CLK_PCM_0>;
> + assigned-clock-parents = <0>, <&clk_s_d0_quadfs 0>;
> + assigned-clock-rates = <50000000>;
> + reg = <0x8D80000 0x158>;
> + interrupts = <GIC_SPI 84 IRQ_TYPE_NONE>;
> + dmas = <&fdma0 2 0 1>;
> + dai-name = "Uni Player #0 (HDMI)";
> + dma-names = "tx";
> + st,uniperiph-id = <0>;
> + st,version = <5>;
> + st,mode = "HDMI";
> + };
> +
> + sti_uni_player1: sti-uni-player at 1 {
> +...