On Fri, Apr 5, 2013 at 1:55 AM, neha naik nehanai...@gmail.com wrote:
Hi All,
From what i have learnt vmalloc requires a minor page fault to sync the
process page tables with the reference page tables. So, is it safe to use
memory already allocated by vmalloc in io context/device driver code
Hi Neha,
On Fri, Apr 5, 2013 at 12:25 AM, neha naik nehanai...@gmail.com wrote:
Hi All,
From what i have learnt vmalloc requires a minor page fault to sync the
process page tables with the reference page tables. So, is it safe to use
memory already allocated by vmalloc in io context/device
Hello All,
I am new here.
I want to know the interrupt handler of the ethernet card and where can i
find the definition of it so as i can clear the flow of packet reception.
Thanks
Robert
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Robert,
You should look for the request_irq() method in the driver.
This method registers an interrupt handler.
For example, you can look in:
http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/e100.c
...
...
if ((err = request_irq(nic-pdev-irq, e100_intr, IRQF_SHARED,
Thanks for the link.
I have another query too..should i ask right now?
On Fri, Apr 5, 2013 at 5:36 PM, Rami Rosen roszenr...@gmail.com wrote:
Robert,
You should look for the request_irq() method in the driver.
This method registers an interrupt handler.
For example, you can look in:
On Fri, Apr 5, 2013 at 1:11 PM, Robert Clove cloverob...@gmail.com wrote:
Thanks for the link.
I have another query too..should i ask right now?
If the question is relevant to current discussion, please ask here but if
it just piggyback to totally different topic at hand make a new
Hi Arun,
I read that there is a minor page fault associated with vmalloc in
following document :
https://www.kernel.org/doc/gorman/html/understand/understand007.html
That is why i am concerned that it may cause issues if trying to access
memory in io context (when call returns from the
