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Kernel: Fix RTL8169 driver

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This now works properly on real hardware. Main issue was a race
condition with now ISR was handled in the interrupt handler. We now loop
until we read back ISR as zero
This commit is contained in:
Bananymous
2026-06-27 20:46:00 +03:00
parent 924576cf0d
commit 6339044e4c
3 changed files with 127 additions and 114 deletions
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36
kernel/include/kernel/Networking/RTL8169/Definitions.h
View File

@@ -7,25 +7,25 @@ namespace Kernel
enum RTL8169_IO_REGS : uint16_t
{
RTL8169_IO_IDR0 = 0x00,
RTL8169_IO_IDR1 = 0x01,
RTL8169_IO_IDR2 = 0x02,
RTL8169_IO_IDR3 = 0x03,
RTL8169_IO_IDR4 = 0x04,
RTL8169_IO_IDR5 = 0x05,
RTL8169_IO_IDR0 = 0x00,
RTL8169_IO_IDR1 = 0x01,
RTL8169_IO_IDR2 = 0x02,
RTL8169_IO_IDR3 = 0x03,
RTL8169_IO_IDR4 = 0x04,
RTL8169_IO_IDR5 = 0x05,
RTL8169_IO_TNPDS = 0x20,
RTL8169_IO_CR = 0x37,
RTL8169_IO_TPPoll = 0x38,
RTL8169_IO_IMR = 0x3C,
RTL8169_IO_ISR = 0x3E,
RTL8169_IO_TCR = 0x40,
RTL8169_IO_RCR = 0x44,
RTL8169_IO_9346CR = 0x50,
RTL8169_IO_PHYSts = 0x6C,
RTL8169_IO_RMS = 0xDA,
RTL8169_IO_RDSAR = 0xE4,
RTL8169_IO_MTPS = 0xEC,
RTL8169_IO_TNPDS = 0x20,
RTL8169_IO_CR = 0x37,
RTL8169_IO_TPPoll = 0x38,
RTL8169_IO_IMR = 0x3C,
RTL8169_IO_ISR = 0x3E,
RTL8169_IO_TCR = 0x40,
RTL8169_IO_RCR = 0x44,
RTL8169_IO_PHYSts = 0x6C,
RTL8169_IO_RMS = 0xDA,
RTL8169_IO_CPlusCR = 0xE0,
RTL8169_IO_RDSAR = 0xE4,
RTL8169_IO_MTPS = 0xEC,
};
enum RTL8169_CR : uint8_t

15
kernel/include/kernel/Networking/RTL8169/RTL8169.h
View File

@@ -64,14 +64,17 @@ namespace Kernel
BAN::UniqPtr<DMARegion> m_rx_descriptor_region;
BAN::UniqPtr<DMARegion> m_tx_descriptor_region;
SpinLock m_lock;
BAN::Atomic<bool> m_rx_thread_should_die { false };
BAN::Atomic<bool> m_rx_thread_is_dead { true };
bool m_thread_should_die { false };
BAN::Atomic<bool> m_thread_is_dead { true };
ThreadBlocker m_thread_blocker;
uint32_t m_rx_head { 0 };
SpinLock m_rx_lock;
ThreadBlocker m_rx_blocker;
uint32_t m_rx_current { 0 };
size_t m_tx_current { 0 };
BAN::Atomic<uint32_t> m_tx_head { 0 };
BAN::Atomic<uint32_t> m_tx_commit { 0 };
SpinLock m_tx_lock;
ThreadBlocker m_tx_blocker;
BAN::MACAddress m_mac_address {};
BAN::Atomic<bool> m_link_up { false };