[dpdk-dev] [PATCH] vfio: add hotplug support

Eelco Chaudron echaudro at redhat.com
Fri Mar 17 12:07:18 CET 2017


On 16/03/17 11:51, Alejandro Lucero wrote:
> Current device hotplug is just when using UIO. This patch adds
> same functionality with VFIO.
>
> It has been validated through tests using IOMMU and also with VFIO
> and no-iommu mode.
>
> Signed-off-by: Alejandro Lucero <alejandro.lucero at netronome.com>
> ---
>   lib/librte_eal/common/eal_common_pci.c         |   2 +-
>   lib/librte_eal/linuxapp/eal/eal_pci.c          |   5 +-
>   lib/librte_eal/linuxapp/eal/eal_pci_init.h     |   1 +
>   lib/librte_eal/linuxapp/eal/eal_pci_vfio.c     |  82 ++++++++++-
>   lib/librte_eal/linuxapp/eal/eal_vfio.c         | 193 +++++++++++++++++++------
>   lib/librte_eal/linuxapp/eal/eal_vfio.h         |  11 +-
>   lib/librte_eal/linuxapp/eal/eal_vfio_mp_sync.c |  23 ++-
>   lib/librte_ether/rte_ethdev.c                  |   2 +-
>   8 files changed, 263 insertions(+), 56 deletions(-)
Thanks Alex for providing this patch to add the VFIO hotplug 
functionality, and to incorporate my offline review comments.

I also tested this patch in combination with Open vSwitch 2.70's hotplug 
feature and did not see any problems.

//Eelco

Reviewed-by: Eelco Chaudron <echaudro at redhat.com>
Tested-by: Eelco Chaudron <echaudro at redhat.com>



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