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Kernel: Add a NetworkTask and a received network packet queue.

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It will be easier to deal with incoming packets in a separate task.
This commit is contained in:
Andreas Kling
2019-03-11 12:43:45 +01:00
parent 47b096feb4
commit 35098cbde1
10 changed files with 90 additions and 11 deletions
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10
Kernel/E1000NetworkAdapter.cpp
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@@ -148,7 +148,6 @@ E1000NetworkAdapter::~E1000NetworkAdapter()
void E1000NetworkAdapter::handle_irq()
{
kprintf("E1000: IRQ!\n");
out32(REG_IMASK, 0x1);
dword status = in32(0xc0);
@@ -157,10 +156,9 @@ void E1000NetworkAdapter::handle_irq()
out32(REG_CTRL, flags | ECTRL_SLU);
}
if (status & 0x10) {
kprintf("E1000: threshold\n");
// Threshold OK?
}
if (status & 0x80) {
kprintf("E1000: receive...\n");
receive();
}
}
@@ -318,8 +316,8 @@ void E1000NetworkAdapter::send_raw(const byte* data, int length)
auto& descriptor = m_tx_descriptors[m_tx_current];
descriptor.addr = (uint64_t)data;
descriptor.length = length;
descriptor.cmd = (1 << 3) | 3;
m_tx_current = m_tx_current + 1 % number_of_tx_descriptors;
descriptor.cmd = CMD_EOP | CMD_IFCS | CMD_RS;
m_tx_current = (m_tx_current + 1) % number_of_tx_descriptors;
out32(REG_TXDESCTAIL, m_tx_current);
while (!(descriptor.status & 0xff))
;
@@ -333,7 +331,7 @@ void E1000NetworkAdapter::receive()
word length = m_rx_descriptors[m_rx_current].length;
kprintf("E1000: Received 1 packet @ %p (%u) bytes!\n", buffer, length);
did_receive(buffer, length);
m_rx_descriptors[m_rx_current].status = 0;
auto old_current = m_rx_current;
m_rx_current = (m_rx_current + 1) % number_of_rx_descriptors;