Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / drivers / net / pnic_api.h

diff --git a/qemu/roms/ipxe/src/drivers/net/pnic_api.h b/qemu/roms/ipxe/src/drivers/net/pnic_api.h
new file mode 100644 (file)
index 0000000..27e0236
--- /dev/null
+++ b/qemu/roms/ipxe/src/drivers/net/pnic_api.h
@@ -0,0 +1,61 @@
+/*
+ * Constants etc. for the Bochs/Etherboot pseudo-NIC
+ * 
+ * This header file must be valid C and C++.
+ *
+ * Operation of the pseudo-NIC (PNIC) is pretty simple.  To write a
+ * command plus data, first write the length of the data to
+ * PNIC_REG_LEN, then write the data a byte at a type to
+ * PNIC_REG_DATA, then write the command code to PNIC_REG_CMD.  The
+ * status will be available from PNIC_REG_STAT.  The length of any
+ * data returned will be in PNIC_REG_LEN and can be read a byte at a
+ * time from PNIC_REG_DATA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/*
+ * PCI parameters
+ */
+#define PNIC_PCI_VENDOR        0xfefe  /* Hopefully these won't clash with */
+#define PNIC_PCI_DEVICE 0xefef /* any real PCI device IDs.         */
+
+/*
+ * 'Hardware' register addresses, offset from io_base
+ */
+#define PNIC_REG_CMD   0x00    /* Command register, 2 bytes, write only */
+#define PNIC_REG_STAT  0x00    /* Status register, 2 bytes, read only */
+#define PNIC_REG_LEN   0x02    /* Length register, 2 bytes, read-write */
+#define PNIC_REG_DATA  0x04    /* Data port, 1 byte, read-write */
+/*
+ * PNIC_MAX_REG used in Bochs to claim i/o space
+ */
+#define PNIC_MAX_REG   0x04
+
+/*
+ * Command code definitions: write these into PNIC_REG_CMD
+ */
+#define PNIC_CMD_NOOP          0x0000
+#define PNIC_CMD_API_VER       0x0001
+#define PNIC_CMD_READ_MAC      0x0002
+#define PNIC_CMD_RESET         0x0003
+#define PNIC_CMD_XMIT          0x0004
+#define PNIC_CMD_RECV          0x0005
+#define PNIC_CMD_RECV_QLEN     0x0006
+#define PNIC_CMD_MASK_IRQ      0x0007
+#define PNIC_CMD_FORCE_IRQ     0x0008
+
+/*
+ * Status code definitions: read these from PNIC_REG_STAT
+ *
+ * We avoid using status codes that might be confused with
+ * randomly-read data (e.g. 0x0000, 0xffff etc.)
+ */
+#define PNIC_STATUS_OK         0x4f4b          /* 'OK' */
+#define PNIC_STATUS_UNKNOWN_CMD        0x3f3f          /* '??' */
+
+/*
+ * Other miscellaneous information
+ */
+
+#define PNIC_API_VERSION       0x0101          /* 1.1 */