[dpdk-dev] [PATCH] vhost: Fix retrieval of numa information in PMD

Thomas Monjalon thomas.monjalon at 6wind.com
Wed Apr 6 18:45:52 CEST 2016


2016-04-06 13:03, Yuanhan Liu:
> On Tue, Apr 05, 2016 at 05:09:47PM +0100, Ciara Loftus wrote:
> > After some testing, it was found that retrieving numa information
> > about a vhost device via a call to get_mempolicy is more
> > accurate when performed during the new_device callback versus
> > the vring_state_changed callback, in particular upon initial boot
> > of the VM.  Performing this check during new_device is also
> > potentially more efficient as this callback is only triggered once
> > during device initialisation, compared with vring_state_changed
> > which may be called multiple times depending on the number of
> > queues assigned to the device.
> > 
> > Reorganise the code to perform this check and assign the correct
> > socket_id to the device during the new_device callback.
> > 
> > Signed-off-by: Ciara Loftus <ciara.loftus at intel.com>
> 
> Acked-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>

Fixes: ee584e9710b9 ("vhost: add driver on top of the library")

Applied, thanks


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