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Kernel: Move AHCIPort::ScatterList to VM::ScatterGatherList

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We want to move this out of the AHCI subsystem into the VM system,
since other parts of the kernel may need to perform scatter-gather IO.

We rename the current VM::ScatterGatherList impl that's used in the
virtio subsystem to VM::ScatterGatherRefList, since its distinguishing
feature from the AHCI scatter-gather list is that it doesn't own its
buffers.
This commit is contained in:
Sahan Fernando 2021-04-24 11:30:27 +10:00 • committed by Andreas Kling
commit 8131c0de8c
Notes: sideshowbarker 2024-07-18 18:15:20 +09:00
11 changed files with 53 additions and 46 deletions
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2
Kernel/VirtIO/VirtIO.cpp
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@ -335,7 +335,7 @@ void VirtIODevice::finish_init()
dbgln_if(VIRTIO_DEBUG, "{}: Finished initialization", m_class_name);
}
void VirtIODevice::supply_buffer_and_notify(u16 queue_index, const ScatterGatherList& scatter_list, BufferType buffer_type, void* token)
void VirtIODevice::supply_buffer_and_notify(u16 queue_index, const ScatterGatherRefList& scatter_list, BufferType buffer_type, void* token)
{
VERIFY(queue_index < m_queue_count);
if (get_queue(queue_index).supply_buffer({}, scatter_list, buffer_type, token))