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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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6
overlay/virtqueue/descriptor_table.go
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@@ -168,12 +168,12 @@ func (dt *DescriptorTable) releaseBuffers() error {
return nil
}
func (dt *DescriptorTable) CreateDescriptorForOutputs() (uint16, error) {
func (dt *DescriptorTable) CreateDescriptorForOutputs() (uint16, uint32, error) {
//todo just fill the damn table
// Do we still have enough free descriptors?
if 1 > dt.freeNum {
return 0, ErrNotEnoughFreeDescriptors
return 0, 0, ErrNotEnoughFreeDescriptors
}
// Above validation ensured that there is at least one free descriptor, so
@@ -216,7 +216,7 @@ func (dt *DescriptorTable) CreateDescriptorForOutputs() (uint16, error) {
dt.descriptors[dt.freeHeadIndex].next = next
}
return head, nil
return head, desc.length, nil
}
func (dt *DescriptorTable) createDescriptorForInputs() (uint16, error) {