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Kernel: Make E1000 sending lockless and mostly non-blocking

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Now we only block if all 256 tx descriptors are waiting to be sent. This
removes TCP acks from taking 30% of profiles while DOWNLOADING files
This commit is contained in:
Bananymous
2026-05-04 21:15:15 +03:00
parent dfe24b69e0
commit 6966475dcf
2 changed files with 21 additions and 17 deletions
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8
kernel/include/kernel/Networking/E1000/E1000.h
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@@ -73,11 +73,15 @@ namespace Kernel
BAN::UniqPtr<DMARegion> m_tx_buffer_region;
BAN::UniqPtr<DMARegion> m_rx_descriptor_region;
BAN::UniqPtr<DMARegion> m_tx_descriptor_region;
SpinLock m_lock;
BAN::Atomic<uint32_t> m_tx_head1 { 0 };
BAN::Atomic<uint32_t> m_tx_head2 { 0 };
SpinLock m_rx_lock;
ThreadBlocker m_rx_blocker;
bool m_thread_should_die { false };
BAN::Atomic<bool> m_thread_is_dead { true };
ThreadBlocker m_thread_blocker;
BAN::MACAddress m_mac_address {};
bool m_link_up { false };