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Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

# gpg: Signature made Tue 26 Jul 2022 09:47:24 BST
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* tag 'net-pull-request' of https://github.com/jasowang/qemu:
  vdpa: Fix memory listener deletions of iova tree
  vhost: Get vring base from vq, not svq
  e1000e: Fix possible interrupt loss when using MSI

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2022-07-26 10:31:02 +01:00
commit 0d0275c31f
2 changed files with 15 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/net/e1000e_core.c
View File

@ -159,6 +159,8 @@ e1000e_intrmgr_on_throttling_timer(void *opaque)
if (msi_enabled(timer->core->owner)) {
trace_e1000e_irq_msi_notify_postponed();
/* Clear msi_causes_pending to fire MSI eventually */
timer->core->msi_causes_pending = 0;
e1000e_set_interrupt_cause(timer->core, 0);
} else {
trace_e1000e_irq_legacy_notify_postponed();

26
hw/virtio/vhost-vdpa.c
View File

@ -290,7 +290,7 @@ static void vhost_vdpa_listener_region_del(MemoryListener *listener,
result = vhost_iova_tree_find_iova(v->iova_tree, &mem_region);
iova = result->iova;
vhost_iova_tree_remove(v->iova_tree, &mem_region);
vhost_iova_tree_remove(v->iova_tree, result);
}
vhost_vdpa_iotlb_batch_begin_once(v);
ret = vhost_vdpa_dma_unmap(v, iova, int128_get64(llsize));
@ -1179,7 +1179,18 @@ static int vhost_vdpa_set_vring_base(struct vhost_dev *dev,
struct vhost_vring_state *ring)
{
struct vhost_vdpa *v = dev->opaque;
VirtQueue *vq = virtio_get_queue(dev->vdev, ring->index);
/*
* vhost-vdpa devices does not support in-flight requests. Set all of them
* as available.
*
* TODO: This is ok for networking, but other kinds of devices might
* have problems with these retransmissions.
*/
while (virtqueue_rewind(vq, 1)) {
continue;
}
if (v->shadow_vqs_enabled) {
/*
* Device vring base was set at device start. SVQ base is handled by
@ -1195,21 +1206,10 @@ static int vhost_vdpa_get_vring_base(struct vhost_dev *dev,
struct vhost_vring_state *ring)
{
struct vhost_vdpa *v = dev->opaque;
int vdpa_idx = ring->index - dev->vq_index;
int ret;
if (v->shadow_vqs_enabled) {
VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, vdpa_idx);
/*
* Setting base as last used idx, so destination will see as available
* all the entries that the device did not use, including the in-flight
* processing ones.
*
* TODO: This is ok for networking, but other kinds of devices might
* have problems with these retransmissions.
*/
ring->num = svq->last_used_idx;
ring->num = virtio_queue_get_last_avail_idx(dev->vdev, ring->index);
return 0;
}