Kernel/Net: Support all E1000 devices in the spec sheet

Since they're all covered by the same spec sheet, we can expect
the same code to cover most of the devices.

It can't currently differentiate between them, which would be nice to
add for determining what registers we can access.

1 files changed, 41 insertions, 3 deletions

diff --git a/Kernel/Net/E1000NetworkAdapter.cpp b/Kernel/Net/E1000NetworkAdapter.cpp
index 7ad294952c..8664dca130 100644
--- a/Kernel/Net/E1000NetworkAdapter.cpp
+++ b/Kernel/Net/E1000NetworkAdapter.cpp
@@ -140,14 +140,52 @@ namespace Kernel {
 #define INTERRUPT_TXD_LOW (1 << 15)
 #define INTERRUPT_SRPD (1 << 16)
 
-void E1000NetworkAdapter::detect()
+// https://www.intel.com/content/dam/doc/manual/pci-pci-x-family-gbe-controllers-software-dev-manual.pdf Section 5.2
+static bool is_valid_device_id(u16 device_id)
 {
-    static const PCI::ID qemu_bochs_vbox_id = { 0x8086, 0x100e };
+    // FIXME: It would be nice to distinguish which particular device it is.
+    //        Especially since it's needed to determine which registers we can access.
+    //        The reason I haven't done it now is because there's some IDs with multiple devices
+    //        and some devices with multiple IDs.
+    switch (device_id) {
+    case 0x1019: // 82547EI-A0, 82547EI-A1, 82547EI-B0, 82547GI-B0
+    case 0x101A: // 82547EI-B0
+    case 0x1010: // 82546EB-A1
+    case 0x1012: // 82546EB-A1
+    case 0x101D: // 82546EB-A1
+    case 0x1079: // 82546GB-B0
+    case 0x107A: // 82546GB-B0
+    case 0x107B: // 82546GB-B0
+    case 0x100F: // 82545EM-A
+    case 0x1011: // 82545EM-A
+    case 0x1026: // 82545GM-B
+    case 0x1027: // 82545GM-B
+    case 0x1028: // 82545GM-B
+    case 0x1107: // 82544EI-A4
+    case 0x1112: // 82544GC-A4
+    case 0x1013: // 82541EI-A0, 82541EI-B0
+    case 0x1018: // 82541EI-B0
+    case 0x1076: // 82541GI-B1, 82541PI-C0
+    case 0x1077: // 82541GI-B1
+    case 0x1078: // 82541ER-C0
+    case 0x1017: // 82540EP-A
+    case 0x1016: // 82540EP-A
+    case 0x100E: // 82540EM-A
+    case 0x1015: // 82540EM-A
+        return true;
+    default:
+        return false;
+    }
+}
 
+void E1000NetworkAdapter::detect()
+{
     PCI::enumerate([&](const PCI::Address& address, PCI::ID id) {
         if (address.is_null())
             return;
-        if (id != qemu_bochs_vbox_id)
+        if (id.vendor_id != 0x8086)
+            return;
+        if (!is_valid_device_id(id.device_id))
             return;
         u8 irq = PCI::get_interrupt_line(address);
         [[maybe_unused]] auto& unused = adopt(*new E1000NetworkAdapter(address, irq)).leak_ref();