于 2014年11月18日 15:58, manty kuma 写道:
> Hi,
>
> What is CONFIG_OF? I see that it is being widely used at many places but
> could not understand in what scenarios i need to use it. There is no
> help documentation available in kconfig for this.
>
Device Tree support? see: http://lwn.net/Articles/4236
On Tue, 18 Nov 2014, manty kuma wrote:
> Hi,
>
> What is CONFIG_OF? I see that it is being widely used at many places
> but could not understand in what scenarios i need to use it. There
> is no help documentation available in kconfig for this.
Open Firmware, aka Device trees.
rday
--
=
Hi Kevin
On Tue, Nov 18, 2014 at 1:19 PM, Kevin Wilson wrote:
> Hi,
> I want to write a kernel module which interacts with a userspace daemon.
> There are cases when the userspace daemon can terminate by some signals.
> There are also cases where the userspace daemon can crash (in some abnorma
Thank you all. I got it. Generally naming in kernel is very precise but in
this case I feel it is little confusing. Thank you again.
On Tue, Nov 18, 2014 at 7:20 PM, sanjeev sharma wrote:
> This option will let you know whether you would like to leverage support
> of Device tree or not ?
>
> Re
This option will let you know whether you would like to leverage support of
Device tree or not ?
Regards
Sanjeev Sharma
On Tue, Nov 18, 2014 at 1:38 PM, Robert P. J. Day
wrote:
> On Tue, 18 Nov 2014, manty kuma wrote:
>
> > Hi,
> >
> > What is CONFIG_OF? I see that it is being widely used at ma
-- Original Message --
From: "Philipp Muhoray"
To: kernelnewbies@kernelnewbies.org
Sent: 11/1/2014 9:41:36 PM
Subject: Choosing the right environment
Hello there,
After reading LDD and LKD, I feel ready to start some actual kernel
hacking. Therefore I wanted to ask you what environm
> - I could go with a virtual machine on one of my main machines – But I'm not
> quite sure whether the hardware-abstraction will give me troubles when
> hacking on hardware drivers (which I want to start with)
>
Developing on virtual machine(you can try VirtualBox) is the best
option, if you int
On Tue, 18 Nov 2014 20:54:05 +0530, somebody said:
> > - I could go with a virtual machine on one of my main machines â But I'm
> > not
> > quite sure whether the hardware-abstraction will give me troubles when
> > hacking on hardware drivers (which I want to start with)
If you're hacking at ha
Am 2014-11-18 um 16:36 schrieb valdis.kletni...@vt.edu:
> On Tue, 18 Nov 2014 20:54:05 +0530, somebody said:
>>> - I could go with a virtual machine on one of my main machines – But I'm
>>> not
>>> quite sure whether the hardware-abstraction will give me troubles when
>>> hacking on hardware dr
Hi,
I have few basic question regarding headroom and tailroom in skb.
1. At time of skb allocation sk->sk_prot->max_header value is 272 .
If we add tcp header+ip header+mac header outcome will always less
than 272 .Then why allocate more ? Is it for future case ?
2. Why space left in headroom
Hi,
I have basic question about gso(generic segmentation offload) vs
tso(TCP segmentation offload)
1. How both are different to each other?
2. If both are ON using ethtool which one is perform segmentation gso or tso ?
Regards
varun
___
Kernelnewbie
TSO is a hardware feature whereas GSO is a software feature.
In the sense, TSO needs "the device" to break the frame into MTU sized segments.
BUT, GSO is a strategy followed by kernel to avoid processing smaller
packets throughout the stack.
Refer this:
http://blogs.gnome.org/markmc/2008/05/28/c
If both are ON then which one works tso or gso ?
On Wed, Nov 19, 2014 at 12:22 PM, Varun Sharma wrote:
> If both are ON then which one works tso or gso ?
>
>
>
> On Wed, Nov 19, 2014 at 12:07 PM, Raj Ravi wrote:
>> TSO is a hardware feature whereas GSO is a software feature.
>>
>> In the sense,
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