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* RE: regarding hotpluggable devices adn linux kernel
@ 2005-01-10  8:36 Bhupesh Kumar Pandey, Noida
  0 siblings, 0 replies; 7+ messages in thread
From: Bhupesh Kumar Pandey, Noida @ 2005-01-10  8:36 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg KH

Thanks a lot.
Now I should try my own. 


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Thanks and Best Regards
Bhupesh Kumar Pandey


-----Original Message-----
From: Greg KH [mailto:greg@kroah.com] 
Sent: Monday, January 10, 2005 12:50 PM
To: Bhupesh Kumar Pandey, Noida
Cc: linux-kernel@vger.kernel.org
Subject: Re: regarding hotpluggable devices adn linux kernel

On Mon, Jan 10, 2005 at 12:39:56PM +0530, Bhupesh Kumar Pandey, Noida wrote:
> "Hotplug of FC-HBA on PCI Express bus

This would involve the pci hotplug driver.  On 2.6, look in
/sys/bus/pci/slots for the different pci slots (after you have loaded the
proper pci hotplug driver for your hardware.)  To add or remove a card,
simply echo 0 or 1 in the power file in the slot that you wish to turn on or
off.  I recommend using the pcihpview program if you don't like using echo,
as it is a gui driven program to do the same thing.

The FC-HBA portion is the same if it's hotplugged or not, no difference
there.

> and PnP of SCSI disk".

It should just be added, if the whole FC-HBA comes up.  If you mean adding
another one later on, after the controller card has scanned the bus, I don't
know, ask the scsi people.

Hope this helps.

greg k-h

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: regarding hotpluggable devices adn linux kernel
  2005-01-10  7:09 Bhupesh Kumar Pandey, Noida
@ 2005-01-10  7:19 ` Greg KH
  0 siblings, 0 replies; 7+ messages in thread
From: Greg KH @ 2005-01-10  7:19 UTC (permalink / raw)
  To: Bhupesh Kumar Pandey, Noida; +Cc: linux-kernel

On Mon, Jan 10, 2005 at 12:39:56PM +0530, Bhupesh Kumar Pandey, Noida wrote:
> "Hotplug of FC-HBA on PCI Express bus

This would involve the pci hotplug driver.  On 2.6, look in
/sys/bus/pci/slots for the different pci slots (after you have loaded
the proper pci hotplug driver for your hardware.)  To add or remove a
card, simply echo 0 or 1 in the power file in the slot that you wish to
turn on or off.  I recommend using the pcihpview program if you don't
like using echo, as it is a gui driven program to do the same thing.

The FC-HBA portion is the same if it's hotplugged or not, no difference
there.

> and PnP of SCSI disk".

It should just be added, if the whole FC-HBA comes up.  If you mean
adding another one later on, after the controller card has scanned the
bus, I don't know, ask the scsi people.

Hope this helps.

greg k-h

^ permalink raw reply	[flat|nested] 7+ messages in thread

* RE: regarding hotpluggable devices adn linux kernel
@ 2005-01-10  7:09 Bhupesh Kumar Pandey, Noida
  2005-01-10  7:19 ` Greg KH
  0 siblings, 1 reply; 7+ messages in thread
From: Bhupesh Kumar Pandey, Noida @ 2005-01-10  7:09 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg KH

"Hotplug of FC-HBA on PCI Express bus and PnP of SCSI disk".


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Thanks and Best Regards
Bhupesh Kumar Pandey


-----Original Message-----
From: Greg KH [mailto:greg@kroah.com] 
Sent: Monday, January 10, 2005 12:35 PM
To: Bhupesh Kumar Pandey, Noida
Cc: linux-kernel@vger.kernel.org
Subject: Re: regarding hotpluggable devices adn linux kernel

On Mon, Jan 10, 2005 at 12:19:21PM +0530, Bhupesh Kumar Pandey, Noida wrote:
>  
> Actually I want to know the how hotplugging works under 2.6 and what 
> is the information flow and how a user can do this.

Hotplug what?  That's a _very_ general term.  Hotplug CPU?  Hotplug Memory?
Hotplug SCSI disk?  Hotplug USB device?  Hotplug keyboard?
Hotplug PCI device?  Hotplug IEEE1394 device?  Hotplug PCMCIA device?
The userspace /sbin/hotplug script?  The linux-hotplug script package?
and so on...

They all work differently, as they are all different things.

> Secondly is it support PnP of iSCSI disks? If yes then it has support 
> in kernel or any patch is nedded? If no then what are the problems.

I do not know anything about iSCSI, sorry.  Try asking on the linux-scsi
mailing list.

greg k-h

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: regarding hotpluggable devices adn linux kernel
  2005-01-10  6:49 Bhupesh Kumar Pandey, Noida
@ 2005-01-10  7:04 ` Greg KH
  0 siblings, 0 replies; 7+ messages in thread
From: Greg KH @ 2005-01-10  7:04 UTC (permalink / raw)
  To: Bhupesh Kumar Pandey, Noida; +Cc: linux-kernel

On Mon, Jan 10, 2005 at 12:19:21PM +0530, Bhupesh Kumar Pandey, Noida wrote:
>  
> Actually I want to know the how hotplugging works under 2.6 and what is the
> information flow and how a user can do this.

Hotplug what?  That's a _very_ general term.  Hotplug CPU?  Hotplug
Memory?  Hotplug SCSI disk?  Hotplug USB device?  Hotplug keyboard?
Hotplug PCI device?  Hotplug IEEE1394 device?  Hotplug PCMCIA device?
The userspace /sbin/hotplug script?  The linux-hotplug script package?
and so on...

They all work differently, as they are all different things.

> Secondly is it support PnP of iSCSI disks? If yes then it has support in
> kernel or any patch is nedded? If no then what are the problems.

I do not know anything about iSCSI, sorry.  Try asking on the linux-scsi
mailing list.

greg k-h

^ permalink raw reply	[flat|nested] 7+ messages in thread

* RE: regarding hotpluggable devices adn linux kernel
@ 2005-01-10  6:49 Bhupesh Kumar Pandey, Noida
  2005-01-10  7:04 ` Greg KH
  0 siblings, 1 reply; 7+ messages in thread
From: Bhupesh Kumar Pandey, Noida @ 2005-01-10  6:49 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg KH

 
Actually I want to know the how hotplugging works under 2.6 and what is the
information flow and how a user can do this.
Secondly is it support PnP of iSCSI disks? If yes then it has support in
kernel or any patch is nedded? If no then what are the problems.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Thanks and Best Regards
Bhupesh Kumar Pandey


-----Original Message-----
From: Greg KH [mailto:greg@kroah.com] 
Sent: Monday, January 10, 2005 12:09 PM
To: Bhupesh Kumar Pandey, Noida
Cc: linux-kernel@vger.kernel.org
Subject: Re: regarding hotpluggable devices adn linux kernel

On Mon, Jan 10, 2005 at 11:06:45AM +0530, Bhupesh Kumar Pandey, Noida wrote:
> Hello,
> Recently I came across a good document "Hotpluggable devices and the 
> linux kernel" by you (Greg Kroah-Hartman).
> This document is based on linux kernel 2.4 series. Is there any same 
> document which descibe the working of kernel 2.6 series.

It works the same, only better :)

Specifically what are you curious about?  Have you read the
linux-hotplug.sf.net documentation?

thanks,

greg k-h

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: regarding hotpluggable devices adn linux kernel
  2005-01-10  5:36 Bhupesh Kumar Pandey, Noida
@ 2005-01-10  6:38 ` Greg KH
  0 siblings, 0 replies; 7+ messages in thread
From: Greg KH @ 2005-01-10  6:38 UTC (permalink / raw)
  To: Bhupesh Kumar Pandey, Noida; +Cc: linux-kernel

On Mon, Jan 10, 2005 at 11:06:45AM +0530, Bhupesh Kumar Pandey, Noida wrote:
> Hello,
> Recently I came across a good document "Hotpluggable devices and the linux
> kernel" by you (Greg Kroah-Hartman).
> This document is based on linux kernel 2.4 series. Is there any same
> document which descibe the working of kernel 2.6 series.

It works the same, only better :)

Specifically what are you curious about?  Have you read the
linux-hotplug.sf.net documentation?

thanks,

greg k-h

^ permalink raw reply	[flat|nested] 7+ messages in thread

* regarding hotpluggable devices adn linux kernel
@ 2005-01-10  5:36 Bhupesh Kumar Pandey, Noida
  2005-01-10  6:38 ` Greg KH
  0 siblings, 1 reply; 7+ messages in thread
From: Bhupesh Kumar Pandey, Noida @ 2005-01-10  5:36 UTC (permalink / raw)
  To: linux-kernel; +Cc: Greg KH

Hello,
Recently I came across a good document "Hotpluggable devices and the linux
kernel" by you (Greg Kroah-Hartman).
This document is based on linux kernel 2.4 series. Is there any same
document which descibe the working of kernel 2.6 series.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Thanks and Regards 
Bhupesh Kumar Pandey
 

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2005-01-10  8:39 UTC | newest]

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2005-01-10  8:36 regarding hotpluggable devices adn linux kernel Bhupesh Kumar Pandey, Noida
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2005-01-10  7:09 Bhupesh Kumar Pandey, Noida
2005-01-10  7:19 ` Greg KH
2005-01-10  6:49 Bhupesh Kumar Pandey, Noida
2005-01-10  7:04 ` Greg KH
2005-01-10  5:36 Bhupesh Kumar Pandey, Noida
2005-01-10  6:38 ` Greg KH

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