[dpdk-dev] [PATCH 2/2] vhost: fix IOTLB on NUMA realloc

[Jens Freimann]

On Thu, Oct 12, 2017 at 03:38:50PM +0000, Maxime Coquelin wrote:
>In case of NUMA reallocation, virtqueue's iotlb list is broken,
>has its head changes but first iotlb entry in the list still points
>to the previous head pointer.
>
>Also, in case of reallocation, we want the IOTLB cache mempool to be
>on the new socket.
>
>This patch perform a full re-init of the IOTLB cache when mempool
>already exists, and calls the IOTLB cache init function in case
>the virtqueue is being reallocated on a new socket.
>
>Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
>---
> lib/librte_vhost/iotlb.c      | 1 -
> lib/librte_vhost/vhost_user.c | 3 +++
> 2 files changed, 3 insertions(+), 1 deletion(-)
>
>diff --git a/lib/librte_vhost/iotlb.c b/lib/librte_vhost/iotlb.c
>index 05c278040..b74cc6a78 100644
>--- a/lib/librte_vhost/iotlb.c
>+++ b/lib/librte_vhost/iotlb.c
>@@ -309,7 +309,6 @@ vhost_user_iotlb_init(struct virtio_net *dev, int vq_index)
> 		 */
> 		vhost_user_iotlb_cache_remove_all(vq);
> 		vhost_user_iotlb_pending_remove_all(vq);
>-		return 0;
> 	}
>
> #ifdef RTE_LIBRTE_VHOST_NUMA

Reviewed-by: Jens Freimann <jfreimann at redhat.com>