From: Jens Freimann <jfreimann@redhat.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: yliu@fridaylinux.org, thomas@monjalon.net, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 2/2] vhost: fix IOTLB on NUMA realloc
Date: Fri, 13 Oct 2017 13:23:14 +0200 [thread overview]
Message-ID: <20171013112314.3izkbzhavrjztut3@dhcp-192-218.str.redhat.com> (raw)
In-Reply-To: <20171012153850.21837-3-maxime.coquelin@redhat.com>
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@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@redhat.com>
next prev parent reply other threads:[~2017-10-13 11:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20171012153850.21837-1-maxime.coquelin@redhat.com>
2017-10-12 15:38 ` [dpdk-dev] [PATCH 1/2] vhost: fix deadlock on IOTLB miss Maxime Coquelin
2017-10-13 11:32 ` Jens Freimann
2017-10-12 15:38 ` [dpdk-dev] [PATCH 2/2] vhost: fix IOTLB on NUMA realloc Maxime Coquelin
2017-10-13 11:23 ` Jens Freimann [this message]
2017-10-13 18:37 ` [dpdk-dev] [PATCH 0/2] vhost: IOTLB fixes for -rc1 Thomas Monjalon
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