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pre-fill the tx ring with bogus empty packets

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This commit is contained in:
JackDoan
2025-12-18 15:18:19 -06:00
parent 726e282d0a
commit 111efc0779
7 changed files with 57 additions and 50 deletions
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13
overlay/virtqueue/split_virtqueue.go
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@@ -301,7 +301,6 @@ func (sq *SplitQueue) BlockAndGetHeadsCapped(ctx context.Context, maxToTake int)
// and any further calls to [SplitQueue.OfferDescriptorChain] will stall.
func (sq *SplitQueue) OfferInDescriptorChains() (uint16, error) {
// Create a descriptor chain for the given buffers.
var (
head uint16
err error
@@ -350,18 +349,6 @@ func (sq *SplitQueue) SetDescSize(head uint16, sz int) {
sq.descriptorTable.descriptors[int(head)].length = uint32(sz)
}
func (sq *SplitQueue) OfferDescriptor(chain uint16, kick bool) error {
// Make the descriptor chain available to the device.
sq.availableRing.offerSingle(chain)
// Notify the device to make it process the updated available ring.
if kick {
return sq.Kick()
}
return nil
}
func (sq *SplitQueue) OfferDescriptorChains(chains []uint16, kick bool) error {
// Make the descriptor chain available to the device.
sq.availableRing.offer(chains)