[intelxl] Add driver for Intel 40 Gigabit Ethernet NICs

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/drivers/net/intelxl.h

+#ifndef _INTELX_H
+#define _INTELX_H
+
+/** @file
+ *
+ * Intel 40 Gigabit Ethernet network card driver
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+#include <stdint.h>
+#include <ipxe/if_ether.h>
+
+struct intelxl_nic;
+
+/** BAR size */
+#define INTELXL_BAR_SIZE 0x200000
+
+/** Alignment
+ *
+ * No data structure requires greater than 128 byte alignment.
+ */
+#define INTELXL_ALIGN 128
+
+/******************************************************************************
+ *
+ * Admin queue
+ *
+ ******************************************************************************
+ */
+
+/** PF Admin Command Queue register block */
+#define INTELXL_ADMIN_CMD 0x080000
+
+/** PF Admin Event Queue register block */
+#define INTELXL_ADMIN_EVT 0x080080
+
+/** Admin Queue Base Address Low Register (offset) */
+#define INTELXL_ADMIN_BAL 0x000
+
+/** Admin Queue Base Address High Register (offset) */
+#define INTELXL_ADMIN_BAH 0x100
+
+/** Admin Queue Length Register (offset) */
+#define INTELXL_ADMIN_LEN 0x200
+#define INTELXL_ADMIN_LEN_LEN(x)	( (x) << 0 )	/**< Queue length */
+#define INTELXL_ADMIN_LEN_ENABLE	0x80000000UL	/**< Queue enable */
+
+/** Admin Queue Head Register (offset) */
+#define INTELXL_ADMIN_HEAD 0x300
+
+/** Admin Queue Tail Register (offset) */
+#define INTELXL_ADMIN_TAIL 0x400
+
+/** Admin queue data buffer command parameters */
+struct intelxl_admin_buffer_params {
+	/** Reserved */
+	uint8_t reserved[8];
+	/** Buffer address high */
+	uint32_t high;
+	/** Buffer address low */
+	uint32_t low;
+} __attribute__ (( packed ));
+
+/** Admin queue Get Version command */
+#define INTELXL_ADMIN_VERSION 0x0001
+
+/** Admin queue version number */
+struct intelxl_admin_version {
+	/** Major version number */
+	uint16_t major;
+	/** Minor version number */
+	uint16_t minor;
+} __attribute__ (( packed ));
+
+/** Admin queue Get Version command parameters */
+struct intelxl_admin_version_params {
+	/** ROM version */
+	uint32_t rom;
+	/** Firmware build ID */
+	uint32_t build;
+	/** Firmware version */
+	struct intelxl_admin_version firmware;
+	/** API version */
+	struct intelxl_admin_version api;
+} __attribute__ (( packed ));
+
+/** Admin queue Driver Version command */
+#define INTELXL_ADMIN_DRIVER 0x0002
+
+/** Admin queue Driver Version command parameters */
+struct intelxl_admin_driver_params {
+	/** Driver version */
+	uint8_t major;
+	/** Minor version */
+	uint8_t minor;
+	/** Build version */
+	uint8_t build;
+	/** Sub-build version */
+	uint8_t sub;
+	/** Reserved */
+	uint8_t reserved[4];
+	/** Data buffer address */
+	uint64_t address;
+} __attribute__ (( packed ));
+
+/** Admin queue Driver Version data buffer */
+struct intelxl_admin_driver_buffer {
+	/** Driver name */
+	char name[32];
+} __attribute__ (( packed ));
+
+/** Admin queue Shutdown command */
+#define INTELXL_ADMIN_SHUTDOWN 0x0003
+
+/** Admin queue Shutdown command parameters */
+struct intelxl_admin_shutdown_params {
+	/** Driver unloading */
+	uint8_t unloading;
+	/** Reserved */
+	uint8_t reserved[15];
+} __attribute__ (( packed ));
+
+/** Driver is unloading */
+#define INTELXL_ADMIN_SHUTDOWN_UNLOADING 0x01
+
+/** Admin queue Get Switch Configuration command */
+#define INTELXL_ADMIN_SWITCH 0x0200
+
+/** Switching element configuration */
+struct intelxl_admin_switch_config {
+	/** Switching element type */
+	uint8_t type;
+	/** Revision */
+	uint8_t revision;
+	/** Switching element ID */
+	uint16_t seid;
+	/** Uplink switching element ID */
+	uint16_t uplink;
+	/** Downlink switching element ID */
+	uint16_t downlink;
+	/** Reserved */
+	uint8_t reserved_b[3];
+	/** Connection type */
+	uint8_t connection;
+	/** Reserved */
+	uint8_t reserved_c[2];
+	/** Element specific information */
+	uint16_t info;
+} __attribute__ (( packed ));
+
+/** Virtual Station Inferface element type */
+#define INTELXL_ADMIN_SWITCH_TYPE_VSI 19
+
+/** Admin queue Get Switch Configuration command parameters */
+struct intelxl_admin_switch_params {
+	/** Starting switching element identifier */
+	uint16_t next;
+	/** Reserved */
+	uint8_t reserved[6];
+	/** Data buffer address */
+	uint64_t address;
+} __attribute__ (( packed ));
+
+/** Admin queue Get Switch Configuration data buffer */
+struct intelxl_admin_switch_buffer {
+	/** Number of switching elements reported */
+	uint16_t count;
+	/** Total number of switching elements */
+	uint16_t total;
+	/** Reserved */
+	uint8_t reserved_a[12];
+	/** Switch configuration */
+	struct intelxl_admin_switch_config cfg;
+} __attribute__ (( packed ));
+
+/** Admin queue Get VSI Parameters command */
+#define INTELXL_ADMIN_VSI 0x0212
+
+/** Admin queue Get VSI Parameters command parameters */
+struct intelxl_admin_vsi_params {
+	/** VSI switching element ID */
+	uint16_t vsi;
+	/** Reserved */
+	uint8_t reserved[6];
+	/** Data buffer address */
+	uint64_t address;
+} __attribute__ (( packed ));
+
+/** Admin queue Get VSI Parameters data buffer */
+struct intelxl_admin_vsi_buffer {
+	/** Reserved */
+	uint8_t reserved_a[30];
+	/** Queue numbers */
+	uint16_t queue[16];
+	/** Reserved */
+	uint8_t reserved_b[34];
+	/** Queue set handles for each traffic class */
+	uint16_t qset[8];
+	/** Reserved */
+	uint8_t reserved_c[16];
+} __attribute__ (( packed ));
+
+/** Admin queue Set VSI Promiscuous Modes command */
+#define INTELXL_ADMIN_PROMISC 0x0254
+
+/** Admin queue Set VSI Promiscuous Modes command parameters */
+struct intelxl_admin_promisc_params {
+	/** Flags */
+	uint16_t flags;
+	/** Valid flags */
+	uint16_t valid;
+	/** VSI switching element ID */
+	uint16_t vsi;
+	/** Reserved */
+	uint8_t reserved[10];
+} __attribute__ (( packed ));
+
+/** Promiscuous unicast mode */
+#define INTELXL_ADMIN_PROMISC_FL_UNICAST 0x0001
+
+/** Promiscuous multicast mode */
+#define INTELXL_ADMIN_PROMISC_FL_MULTICAST 0x0002
+
+/** Promiscuous broadcast mode */
+#define INTELXL_ADMIN_PROMISC_FL_BROADCAST 0x0004
+
+/** Promiscuous VLAN mode */
+#define INTELXL_ADMIN_PROMISC_FL_VLAN 0x0010
+
+/** Admin queue Restart Autonegotiation command */
+#define INTELXL_ADMIN_AUTONEG 0x0605
+
+/** Admin queue Restart Autonegotiation command parameters */
+struct intelxl_admin_autoneg_params {
+	/** Flags */
+	uint8_t flags;
+	/** Reserved */
+	uint8_t reserved[15];
+} __attribute__ (( packed ));
+
+/** Restart autonegotiation */
+#define INTELXL_ADMIN_AUTONEG_FL_RESTART 0x02
+
+/** Enable link */
+#define INTELXL_ADMIN_AUTONEG_FL_ENABLE 0x04
+
+/** Admin queue Get Link Status command */
+#define INTELXL_ADMIN_LINK 0x0607
+
+/** Admin queue Get Link Status command parameters */
+struct intelxl_admin_link_params {
+	/** Link status notification */
+	uint8_t notify;
+	/** Reserved */
+	uint8_t reserved_a;
+	/** PHY type */
+	uint8_t phy;
+	/** Link speed */
+	uint8_t speed;
+	/** Link status */
+	uint8_t status;
+	/** Reserved */
+	uint8_t reserved_b[11];
+} __attribute__ (( packed ));
+
+/** Notify driver of link status changes */
+#define INTELXL_ADMIN_LINK_NOTIFY 0x03
+
+/** Link is up */
+#define INTELXL_ADMIN_LINK_UP 0x01
+
+/** Admin queue command parameters */
+union intelxl_admin_params {
+	/** Additional data buffer command parameters */
+	struct intelxl_admin_buffer_params buffer;
+	/** Get Version command parameters */
+	struct intelxl_admin_version_params version;
+	/** Driver Version command parameters */
+	struct intelxl_admin_driver_params driver;
+	/** Shutdown command parameters */
+	struct intelxl_admin_shutdown_params shutdown;
+	/** Get Switch Configuration command parameters */
+	struct intelxl_admin_switch_params sw;
+	/** Get VSI Parameters command parameters */
+	struct intelxl_admin_vsi_params vsi;
+	/** Set VSI Promiscuous Modes command parameters */
+	struct intelxl_admin_promisc_params promisc;
+	/** Restart Autonegotiation command parameters */
+	struct intelxl_admin_autoneg_params autoneg;
+	/** Get Link Status command parameters */
+	struct intelxl_admin_link_params link;
+} __attribute__ (( packed ));
+
+/** Admin queue data buffer */
+union intelxl_admin_buffer {
+	/** Driver Version data buffer */
+	struct intelxl_admin_driver_buffer driver;
+	/** Get Switch Configuration data buffer */
+	struct intelxl_admin_switch_buffer sw;
+	/** Get VSI Parameters data buffer */
+	struct intelxl_admin_vsi_buffer vsi;
+} __attribute__ (( packed ));
+
+/** Admin queue descriptor */
+struct intelxl_admin_descriptor {
+	/** Flags */
+	uint16_t flags;
+	/** Opcode */
+	uint16_t opcode;
+	/** Data length */
+	uint16_t len;
+	/** Return value */
+	uint16_t ret;
+	/** Cookie */
+	uint32_t cookie;
+	/** Reserved */
+	uint32_t reserved;
+	/** Parameters */
+	union intelxl_admin_params params;
+} __attribute__ (( packed ));
+
+/** Admin descriptor done */
+#define INTELXL_ADMIN_FL_DD 0x0001
+
+/** Admin descriptor contains a completion */
+#define INTELXL_ADMIN_FL_CMP 0x0002
+
+/** Admin descriptor completed in error */
+#define INTELXL_ADMIN_FL_ERR 0x0004
+
+/** Admin descriptor uses data buffer for command parameters */
+#define INTELXL_ADMIN_FL_RD 0x0400
+
+/** Admin descriptor uses data buffer */
+#define INTELXL_ADMIN_FL_BUF 0x1000
+
+/** Admin queue */
+struct intelxl_admin {
+	/** Descriptors */
+	struct intelxl_admin_descriptor *desc;
+	/** Queue index */
+	unsigned int index;
+
+	/** Register block */
+	unsigned int reg;
+	/** Data buffer */
+	union intelxl_admin_buffer *buffer;
+};
+
+/**
+ * Initialise admin queue
+ *
+ * @v admin		Admin queue
+ * @v reg		Register block
+ */
+static inline __attribute__ (( always_inline )) void
+intelxl_init_admin ( struct intelxl_admin *admin, unsigned int reg ) {
+
+	admin->reg = reg;
+}
+
+/** Number of admin queue descriptors */
+#define INTELXL_ADMIN_NUM_DESC 4
+
+/** Maximum time to wait for an admin request to complete */
+#define INTELXL_ADMIN_MAX_WAIT_MS 100
+
+/** Admin queue API major version */
+#define INTELXL_ADMIN_API_MAJOR 1
+
+/******************************************************************************
+ *
+ * Transmit and receive queue context
+ *
+ ******************************************************************************
+ */
+
+/** CMLAN Context Data Register */
+#define INTELXL_PFCM_LANCTXDATA(x) ( 0x10c100 + ( 0x80 * (x) ) )
+
+/** CMLAN Context Control Register */
+#define INTELXL_PFCM_LANCTXCTL 0x10c300
+#define INTELXL_PFCM_LANCTXCTL_QUEUE_NUM(x) \
+	( (x) << 0 )					/**< Queue number */
+#define INTELXL_PFCM_LANCTXCTL_SUB_LINE(x) \
+	( (x) << 12 )					/**< Sub-line */
+#define INTELXL_PFCM_LANCTXCTL_TYPE(x) \
+	( (x) << 15 )					/**< Queue type */
+#define INTELXL_PFCM_LANCTXCTL_TYPE_RX \
+	INTELXL_PFCM_LANCTXCTL_TYPE ( 0x0 )		/**< RX queue type */
+#define INTELXL_PFCM_LANCTXCTL_TYPE_TX \
+	INTELXL_PFCM_LANCTXCTL_TYPE ( 0x1 )		/**< TX queue type */
+#define INTELXL_PFCM_LANCTXCTL_OP_CODE(x) \
+	( (x) << 17 )					/**< Op code */
+#define INTELXL_PFCM_LANCTXCTL_OP_CODE_READ \
+	INTELXL_PFCM_LANCTXCTL_OP_CODE ( 0x0 )		/**< Read context */
+#define INTELXL_PFCM_LANCTXCTL_OP_CODE_WRITE \
+	INTELXL_PFCM_LANCTXCTL_OP_CODE ( 0x1 )		/**< Write context */
+
+/** CMLAN Context Status Register */
+#define INTELXL_PFCM_LANCTXSTAT 0x10c380
+#define INTELXL_PFCM_LANCTXSTAT_DONE   0x00000001UL	/**< Complete */
+
+/** Queue context line */
+struct intelxl_context_line {
+	/** Raw data */
+	uint32_t raw[4];
+} __attribute__ (( packed ));
+
+/** Transmit queue context */
+struct intelxl_context_tx {
+	/** Head pointer */
+	uint16_t head;
+	/** Flags */
+	uint16_t flags;
+	/** Base address */
+	uint64_t base;
+	/** Reserved */
+	uint8_t reserved_a[8];
+	/** Queue count */
+	uint16_t count;
+	/** Reserved */
+	uint8_t reserved_b[100];
+	/** Queue set */
+	uint16_t qset;
+	/** Reserved */
+	uint8_t reserved_c[4];
+} __attribute__ (( packed ));
+
+/** New transmit queue context */
+#define INTELXL_CTX_TX_FL_NEW 0x4000
+
+/** Transmit queue base address */
+#define INTELXL_CTX_TX_BASE( base ) ( (base) >> 7 )
+
+/** Transmit queue count */
+#define INTELXL_CTX_TX_COUNT( count ) ( (count) << 1 )
+
+/** Transmit queue set */
+#define INTELXL_CTX_TX_QSET( qset) ( (qset) << 4 )
+
+/** Receive queue context */
+struct intelxl_context_rx {
+	/** Head pointer */
+	uint16_t head;
+	/** Reserved */
+	uint8_t reserved_a[2];
+	/** Base address and queue count */
+	uint64_t base_count;
+	/** Data buffer length */
+	uint16_t len;
+	/** Flags */
+	uint8_t flags;
+	/** Reserved */
+	uint8_t reserved_b[7];
+	/** Maximum frame size */
+	uint16_t mfs;
+} __attribute__ (( packed ));
+
+/** Receive queue base address and queue count */
+#define INTELXL_CTX_RX_BASE_COUNT( base, count ) \
+	( ( (base) >> 7 ) | ( ( ( uint64_t ) (count) ) << 57 ) )
+
+/** Receive queue data buffer length */
+#define INTELXL_CTX_RX_LEN( len ) ( (len) >> 1 )
+
+/** Strip CRC from received packets */
+#define INTELXL_CTX_RX_FL_CRCSTRIP 0x20
+
+/** Receive queue maximum frame size */
+#define INTELXL_CTX_RX_MFS( mfs ) ( (mfs) >> 2 )
+
+/** Maximum time to wait for a context operation to complete */
+#define INTELXL_CTX_MAX_WAIT_MS 100
+
+/** Time to wait for a queue to become enabled */
+#define INTELXL_QUEUE_ENABLE_DELAY_US 20
+
+/** Time to wait for a transmit queue to become pre-disabled */
+#define INTELXL_QUEUE_PRE_DISABLE_DELAY_US 400
+
+/** Maximum time to wait for a queue to become disabled */
+#define INTELXL_QUEUE_DISABLE_MAX_WAIT_MS 1000
+
+/******************************************************************************
+ *
+ * Transmit and receive descriptors
+ *
+ ******************************************************************************
+ */
+
+/** Global Transmit Queue Head register */
+#define INTELXL_QTX_HEAD(x) ( 0x0e4000 + ( 0x4 * (x) ) )
+
+/** Global Transmit Pre Queue Disable register */
+#define INTELXL_GLLAN_TXPRE_QDIS(x) ( 0x0e6500 + ( 0x4 * ( (x) / 0x80 ) ) )
+#define INTELXL_GLLAN_TXPRE_QDIS_QINDX(x) \
+	( (x) << 0 )					/**< Queue index */
+#define INTELXL_GLLAN_TXPRE_QDIS_SET_QDIS \
+	0x40000000UL					/**< Set disable */
+#define INTELXL_GLLAN_TXPRE_QDIS_CLEAR_QDIS				\
+	0x80000000UL					/**< Clear disable */
+
+/** Global Transmit Queue register block */
+#define INTELXL_QTX(x) ( 0x100000 + ( 0x4 * (x) ) )
+
+/** Global Receive Queue register block */
+#define INTELXL_QRX(x) ( 0x120000 + ( 0x4 * (x) ) )
+
+/** Queue Enable Register (offset) */
+#define INTELXL_QXX_ENA 0x0000
+#define INTELXL_QXX_ENA_REQ		0x00000001UL	/**< Enable request */
+#define INTELXL_QXX_ENA_STAT		0x00000004UL	/**< Enabled status */
+
+/** Queue Control Register (offset) */
+#define INTELXL_QXX_CTL 0x4000
+#define INTELXL_QXX_CTL_PFVF_Q(x)	( (x) << 0 )	/**< PF/VF queue */
+#define INTELXL_QXX_CTL_PFVF_Q_PF \
+	INTELXL_QXX_CTL_PFVF_Q ( 0x2 )			/**< PF queue */
+#define INTELXL_QXX_CTL_PFVF_PF_INDX(x)	( (x) << 2 )	/**< PF index */
+
+/** Queue Tail Pointer Register (offset) */
+#define INTELXL_QXX_TAIL 0x8000
+
+/** Transmit data descriptor */
+struct intelxl_tx_data_descriptor {
+	/** Buffer address */
+	uint64_t address;
+	/** Flags */
+	uint32_t flags;
+	/** Length */
+	uint32_t len;
+} __attribute__ (( packed ));
+
+/** Transmit data descriptor type */
+#define INTELXL_TX_DATA_DTYP 0x0
+
+/** Transmit data descriptor end of packet */
+#define INTELXL_TX_DATA_EOP 0x10
+
+/** Transmit data descriptor report status */
+#define INTELXL_TX_DATA_RS 0x20
+
+/** Transmit data descriptor pretty please
+ *
+ * This bit is completely missing from older versions of the XL710
+ * datasheet.  Later versions describe it innocuously as "reserved,
+ * must be 1".  Without this bit, everything will appear to work (up
+ * to and including the port "transmit good octets" counter), but no
+ * packet will actually be sent.
+ */
+#define INTELXL_TX_DATA_JFDI 0x40
+
+/** Transmit data descriptor length */
+#define INTELXL_TX_DATA_LEN( len ) ( (len) << 2 )
+
+/** Transmit writeback descriptor */
+struct intelxl_tx_writeback_descriptor {
+	/** Reserved */
+	uint8_t reserved_a[8];
+	/** Flags */
+	uint8_t flags;
+	/** Reserved */
+	uint8_t reserved_b[7];
+} __attribute__ (( packed ));
+
+/** Transmit writeback descriptor complete */
+#define INTELXL_TX_WB_FL_DD 0x01
+
+/** Receive data descriptor */
+struct intelxl_rx_data_descriptor {
+	/** Buffer address */
+	uint64_t address;
+	/** Flags */
+	uint32_t flags;
+	/** Reserved */
+	uint8_t reserved[4];
+} __attribute__ (( packed ));
+
+/** Receive writeback descriptor */
+struct intelxl_rx_writeback_descriptor {
+	/** Reserved */
+	uint8_t reserved[8];
+	/** Flags */
+	uint32_t flags;
+	/** Length */
+	uint32_t len;
+} __attribute__ (( packed ));
+
+/** Receive writeback descriptor complete */
+#define INTELXL_RX_WB_FL_DD 0x00000001UL
+
+/** Receive writeback descriptor error */
+#define INTELXL_RX_WB_FL_RXE 0x00080000UL
+
+/** Receive writeback descriptor length */
+#define INTELXL_RX_WB_LEN(len) ( ( (len) >> 6 ) & 0x3fff )
+
+/** Packet descriptor */
+union intelxl_descriptor {
+	/** Transmit data descriptor */
+	struct intelxl_tx_data_descriptor tx;
+	/** Transmit writeback descriptor */
+	struct intelxl_tx_writeback_descriptor tx_wb;
+	/** Receive data descriptor */
+	struct intelxl_rx_data_descriptor rx;
+	/** Receive writeback descriptor */
+	struct intelxl_rx_writeback_descriptor rx_wb;
+};
+
+/** Descriptor ring */
+struct intelxl_ring {
+	/** Descriptors */
+	union intelxl_descriptor *desc;
+	/** Producer index */
+	unsigned int prod;
+	/** Consumer index */
+	unsigned int cons;
+
+	/** Register block */
+	unsigned int reg;
+	/** Length (in bytes) */
+	size_t len;
+	/** Program queue context
+	 *
+	 * @v intelxl		Intel device
+	 * @v address		Descriptor ring base address
+	 */
+	int ( * context ) ( struct intelxl_nic *intelxl, physaddr_t address );
+};
+
+/**
+ * Initialise descriptor ring
+ *
+ * @v ring		Descriptor ring
+ * @v count		Number of descriptors
+ * @v context		Method to program queue context
+ */
+static inline __attribute__ (( always_inline)) void
+intelxl_init_ring ( struct intelxl_ring *ring, unsigned int count,
+		    int ( * context ) ( struct intelxl_nic *intelxl,
+					physaddr_t address ) ) {
+
+	ring->len = ( count * sizeof ( ring->desc[0] ) );
+	ring->context = context;
+}
+
+/** Number of transmit descriptors */
+#define INTELXL_TX_NUM_DESC 16
+
+/** Transmit descriptor ring maximum fill level */
+#define INTELXL_TX_FILL ( INTELXL_TX_NUM_DESC - 1 )
+
+/** Number of receive descriptors
+ *
+ * In PXE mode (i.e. able to post single receive descriptors), 8
+ * descriptors is the only permitted value covering all possible
+ * numbers of PFs.
+ */
+#define INTELXL_RX_NUM_DESC 8
+
+/** Receive descriptor ring fill level */
+#define INTELXL_RX_FILL ( INTELXL_RX_NUM_DESC - 1 )
+
+/******************************************************************************
+ *
+ * Top level
+ *
+ ******************************************************************************
+ */
+
+/** PF Interrupt Zero Dynamic Control Register */
+#define INTELXL_PFINT_DYN_CTL0 0x038480
+#define INTELXL_PFINT_DYN_CTL0_INTENA	0x00000001UL	/**< Enable */
+#define INTELXL_PFINT_DYN_CTL0_CLEARPBA	0x00000002UL	/**< Acknowledge */
+#define INTELXL_PFINT_DYN_CTL0_INTENA_MASK 0x80000000UL	/**< Ignore enable */
+
+/** PF Interrupt Zero Linked List Register */
+#define INTELXL_PFINT_LNKLST0 0x038500
+#define INTELXL_PFINT_LNKLST0_FIRSTQ_INDX(x) \
+	( (x) << 0 )					/**< Queue index */
+#define INTELXL_PFINT_LNKLST0_FIRSTQ_INDX_NONE \
+	INTELXL_PFINT_LNKLST0_FIRSTQ_INDX ( 0x7ff )	/**< End of list */
+#define INTELXL_PFINT_LNKLST0_FIRSTQ_TYPE(x) \
+	( (x) << 11 )					/**< Queue type */
+#define INTELXL_PFINT_LNKLST0_FIRSTQ_TYPE_RX \
+	INTELXL_PFINT_LNKLST0_FIRSTQ_TYPE ( 0x0 )	/**< Receive queue */
+#define INTELXL_PFINT_LNKLST0_FIRSTQ_TYPE_TX \
+	INTELXL_PFINT_LNKLST0_FIRSTQ_TYPE ( 0x1 )	/**< Transmit queue */
+
+/** PF Interrupt Zero Cause Enablement Register */
+#define INTELXL_PFINT_ICR0_ENA 0x038800
+#define INTELXL_PFINT_ICR0_ENA_ADMINQ	0x40000000UL	/**< Admin event */
+
+/** Receive Queue Interrupt Cause Control Register */
+#define INTELXL_QINT_RQCTL(x) ( 0x03a000 + ( 0x4 * (x) ) )
+#define INTELXL_QINT_RQCTL_NEXTQ_INDX(x) ( (x) << 16 )	/**< Queue index */
+#define INTELXL_QINT_RQCTL_NEXTQ_INDX_NONE \
+	INTELXL_QINT_RQCTL_NEXTQ_INDX ( 0x7ff )		/**< End of list */
+#define INTELXL_QINT_RQCTL_NEXTQ_TYPE(x) ( (x) << 27 )	/**< Queue type */
+#define INTELXL_QINT_RQCTL_NEXTQ_TYPE_RX \
+	INTELXL_QINT_RQCTL_NEXTQ_TYPE ( 0x0 )		/**< Receive queue */
+#define INTELXL_QINT_RQCTL_NEXTQ_TYPE_TX \
+	INTELXL_QINT_RQCTL_NEXTQ_TYPE ( 0x1 )		/**< Transmit queue */
+#define INTELXL_QINT_RQCTL_CAUSE_ENA	0x40000000UL	/**< Enable */
+
+/** Transmit Queue Interrupt Cause Control Register */
+#define INTELXL_QINT_TQCTL(x) ( 0x03c000 + ( 0x4 * (x) ) )
+#define INTELXL_QINT_TQCTL_NEXTQ_INDX(x) ( (x) << 16 )	/**< Queue index */
+#define INTELXL_QINT_TQCTL_NEXTQ_INDX_NONE \
+	INTELXL_QINT_TQCTL_NEXTQ_INDX ( 0x7ff )		/**< End of list */
+#define INTELXL_QINT_TQCTL_NEXTQ_TYPE(x) ( (x) << 27 )	/**< Queue type */
+#define INTELXL_QINT_TQCTL_NEXTQ_TYPE_RX \
+	INTELXL_QINT_TQCTL_NEXTQ_TYPE ( 0x0 )		/**< Receive queue */
+#define INTELXL_QINT_TQCTL_NEXTQ_TYPE_TX \
+	INTELXL_QINT_TQCTL_NEXTQ_TYPE ( 0x1 )		/**< Transmit queue */
+#define INTELXL_QINT_TQCTL_CAUSE_ENA	0x40000000UL	/**< Enable */
+
+/** PF Control Register */
+#define INTELXL_PFGEN_CTRL 0x092400
+#define INTELXL_PFGEN_CTRL_PFSWR	0x00000001UL	/**< Software Reset */
+
+/** Time to delay for device reset, in milliseconds */
+#define INTELXL_RESET_DELAY_MS 100
+
+/** PF Queue Allocation Register */
+#define INTELXL_PFLAN_QALLOC 0x1c0400
+#define INTELXL_PFLAN_QALLOC_FIRSTQ(x) \
+	( ( (x) >> 0 ) & 0x7ff )			/**< First queue */
+#define INTELXL_PFLAN_QALLOC_LASTQ(x) \
+	( ( (x) >> 16 ) & 0x7ff )			/**< Last queue */
+
+/** PF LAN Port Number Register */
+#define INTELXL_PFGEN_PORTNUM 0x1c0480
+#define INTELXL_PFGEN_PORTNUM_PORT_NUM(x) \
+	( ( (x) >> 0 ) & 0x3 )				/**< Port number */
+
+/** Port MAC Address Low Register */
+#define INTELXL_PRTGL_SAL 0x1e2120
+
+/** Port MAC Address High Register */
+#define INTELXL_PRTGL_SAH 0x1e2140
+#define INTELXL_PRTGL_SAH_MFS_GET(x)	( (x) >> 16 )	/**< Max frame size */
+#define INTELXL_PRTGL_SAH_MFS_SET(x)	( (x) << 16 )	/**< Max frame size */
+
+/** Receive address */
+union intelxl_receive_address {
+	struct {
+		uint32_t low;
+		uint32_t high;
+	} __attribute__ (( packed )) reg;
+	uint8_t raw[ETH_ALEN];
+};
+
+/** An Intel 40Gigabit network card */
+struct intelxl_nic {
+	/** Registers */
+	void *regs;
+	/** Maximum frame size */
+	size_t mfs;
+
+	/** Physical function number */
+	unsigned int pf;
+	/** Absolute queue number base */
+	unsigned int base;
+	/** Port number */
+	unsigned int port;
+	/** Queue number */
+	unsigned int queue;
+	/** Virtual Station Interface switching element ID */
+	unsigned int vsi;
+	/** Queue set handle */
+	unsigned int qset;
+
+	/** Admin command queue */
+	struct intelxl_admin command;
+	/** Admin event queue */
+	struct intelxl_admin event;
+
+	/** Transmit descriptor ring */
+	struct intelxl_ring tx;
+	/** Receive descriptor ring */
+	struct intelxl_ring rx;
+	/** Receive I/O buffers */
+	struct io_buffer *rx_iobuf[INTELXL_RX_NUM_DESC];
+};
+
+#endif /* _INTELXL_H */

src/include/ipxe/errfile.h

 #define ERRFILE_lan78xx		     ( ERRFILE_DRIVER | 0x00c80000 )
 #define ERRFILE_ena		     ( ERRFILE_DRIVER | 0x00c90000 )
 #define ERRFILE_icplus		     ( ERRFILE_DRIVER | 0x00ca0000 )
+#define ERRFILE_intelxl		     ( ERRFILE_DRIVER | 0x00cb0000 )
 
 #define ERRFILE_aoe			( ERRFILE_NET | 0x00000000 )
 #define ERRFILE_arp			( ERRFILE_NET | 0x00010000 )