19bc18cc9e
- kvm-vdpa-Skip-the-maps-not-in-the-iova-tree.patch [RHELX-57] - kvm-vdpa-do-not-save-failed-dma-maps-in-SVQ-iova-tree.patch [RHELX-57] - kvm-util-accept-iova_tree_remove_parameter-by-value.patch [RHELX-57] - kvm-vdpa-Remove-SVQ-vring-from-iova_tree-at-shutdown.patch [RHELX-57] - kvm-vdpa-Make-SVQ-vring-unmapping-return-void.patch [RHELX-57] - kvm-vhost-Always-store-new-kick-fd-on-vhost_svq_set_svq_.patch [RHELX-57] - kvm-vdpa-Use-ring-hwaddr-at-vhost_vdpa_svq_unmap_ring.patch [RHELX-57] - kvm-vhost-stop-transfer-elem-ownership-in-vhost_handle_g.patch [RHELX-57] - kvm-vhost-use-SVQ-element-ndescs-instead-of-opaque-data-.patch [RHELX-57] - kvm-vhost-Delete-useless-read-memory-barrier.patch [RHELX-57] - kvm-vhost-Do-not-depend-on-NULL-VirtQueueElement-on-vhos.patch [RHELX-57] - kvm-vhost_net-Add-NetClientInfo-start-callback.patch [RHELX-57] - kvm-vhost_net-Add-NetClientInfo-stop-callback.patch [RHELX-57] - kvm-vdpa-add-net_vhost_vdpa_cvq_info-NetClientInfo.patch [RHELX-57] - kvm-vdpa-Move-command-buffers-map-to-start-of-net-device.patch [RHELX-57] - kvm-vdpa-extract-vhost_vdpa_net_cvq_add-from-vhost_vdpa_.patch [RHELX-57] - kvm-vhost_net-add-NetClientState-load-callback.patch [RHELX-57] - kvm-vdpa-Add-virtio-net-mac-address-via-CVQ-at-start.patch [RHELX-57] - kvm-vdpa-Delete-CVQ-migration-blocker.patch [RHELX-57] - kvm-vdpa-Make-VhostVDPAState-cvq_cmd_in_buffer-control-a.patch [RHELX-57] - kvm-vdpa-extract-vhost_vdpa_net_load_mac-from-vhost_vdpa.patch [RHELX-57] - kvm-vdpa-Add-vhost_vdpa_net_load_mq.patch [RHELX-57] - kvm-vdpa-validate-MQ-CVQ-commands.patch [RHELX-57] - kvm-virtio-net-Update-virtio-net-curr_queue_pairs-in-vdp.patch [RHELX-57] - kvm-vdpa-Allow-MQ-feature-in-SVQ.patch [RHELX-57] - kvm-i386-reset-KVM-nested-state-upon-CPU-reset.patch [bz#2125281] - kvm-i386-do-kvm_put_msr_feature_control-first-thing-when.patch [bz#2125281] - kvm-Revert-Re-enable-capstone-internal-build.patch [bz#2127825] - kvm-spec-Use-capstone-package.patch [bz#2127825] - Resolves: RHELX-57 (vDPA SVQ Multiqueue support ) - Resolves: bz#2125281 ([RHEL9.1] Guests in VMX root operation fail to reboot with QEMU's 'system_reset' command [rhel-9.2.0]) - Resolves: bz#2127825 (Use capstone for qemu-kvm build)
62 lines
2.3 KiB
Diff
62 lines
2.3 KiB
Diff
From 9e23182c5249f876e56ef9a31b22476b5268f246 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>
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Date: Thu, 11 Aug 2022 16:40:07 +0200
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Subject: [PATCH 24/29] virtio-net: Update virtio-net curr_queue_pairs in vdpa
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backends
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Laurent Vivier <lvivier@redhat.com>
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RH-MergeRequest: 117: vDPA SVQ Multiqueue support
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RH-Jira: RHELX-57
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RH-Acked-by: Jason Wang <jasowang@redhat.com>
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RH-Acked-by: Cindy Lu <lulu@redhat.com>
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RH-Acked-by: Eugenio Pérez <eperezma@redhat.com>
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RH-Commit: [24/25] e0e6978394d6496a7e12cf8424b2e9cb87281a90 (redhat/centos-stream/src/qemu-kvm)
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Upstream: Not merged yet
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It was returned as error before. Instead of it, simply update the
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corresponding field so qemu can send it in the migration data.
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Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
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Signed-off-by: Laurent Vivier <lvivier@redhat.com>
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---
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hw/net/virtio-net.c | 17 ++++++-----------
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1 file changed, 6 insertions(+), 11 deletions(-)
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diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
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index dd0d056fde..63a8332cd0 100644
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--- a/hw/net/virtio-net.c
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+++ b/hw/net/virtio-net.c
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@@ -1412,19 +1412,14 @@ static int virtio_net_handle_mq(VirtIONet *n, uint8_t cmd,
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return VIRTIO_NET_ERR;
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}
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- /* Avoid changing the number of queue_pairs for vdpa device in
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- * userspace handler. A future fix is needed to handle the mq
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- * change in userspace handler with vhost-vdpa. Let's disable
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- * the mq handling from userspace for now and only allow get
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- * done through the kernel. Ripples may be seen when falling
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- * back to userspace, but without doing it qemu process would
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- * crash on a recursive entry to virtio_net_set_status().
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- */
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+ n->curr_queue_pairs = queue_pairs;
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if (nc->peer && nc->peer->info->type == NET_CLIENT_DRIVER_VHOST_VDPA) {
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- return VIRTIO_NET_ERR;
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+ /*
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+ * Avoid updating the backend for a vdpa device: We're only interested
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+ * in updating the device model queues.
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+ */
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+ return VIRTIO_NET_OK;
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}
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-
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- n->curr_queue_pairs = queue_pairs;
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/* stop the backend before changing the number of queue_pairs to avoid handling a
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* disabled queue */
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virtio_net_set_status(vdev, vdev->status);
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--
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2.31.1
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