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+/**************************************************************************
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+ *
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+ * Etherboot driver for Level 5 Etherfabric network cards
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+ *
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+ * Written by Michael Brown <mbrown@fensystems.co.uk>
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+ *
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+ * Copyright Fen Systems Ltd. 2005
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+ * Copyright Level 5 Networks Inc. 2005
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+ *
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+ * This software may be used and distributed according to the terms of
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+ * the GNU General Public License (GPL), incorporated herein by
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+ * reference. Drivers based on or derived from this code fall under
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+ * the GPL and must retain the authorship, copyright and license
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+ * notice.
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+ *
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+ **************************************************************************
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+ */
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+#ifndef EFAB_NIC_H
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+#define EFAB_NIC_H
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+#include <gpxe/bitbash.h>
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+#include <gpxe/i2c.h>
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+#include <gpxe/spi.h>
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+#include <gpxe/nvo.h>
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+#include <gpxe/if_ether.h>
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+/**************************************************************************
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+ *
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+ * Constants and macros
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+ *
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+ **************************************************************************
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+ */
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+/* Board IDs. Early boards have no board_type, (e.g. EF1002 and 401/403)
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+ * But newer boards are getting bigger...
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+ */
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+typedef enum {
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+ EFAB_BOARD_INVALID = 0, /* Early boards do not have board rev. info. */
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+ EFAB_BOARD_SFE4001 = 1,
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+ EFAB_BOARD_SFE4002 = 2,
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+ EFAB_BOARD_SFE4003 = 3,
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+ /* Insert new types before here */
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+ EFAB_BOARD_MAX
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+} efab_board_type;
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+
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+/* PHY types. */
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+typedef enum {
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+ PHY_TYPE_AUTO = 0, /* on development board detect between CX4 & alaska */
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+ PHY_TYPE_CX4_RTMR = 1,
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+ PHY_TYPE_1GIG_ALASKA = 2,
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+ PHY_TYPE_10XPRESS = 3,
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+ PHY_TYPE_XFP = 4,
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+ PHY_TYPE_CX4 = 5,
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+ PHY_TYPE_PM8358 = 6,
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+} phy_type_t;
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+
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+/**************************************************************************
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+ *
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+ * Hardware data structures and sizing
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+ *
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+ **************************************************************************
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+ */
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+
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+#define dma_addr_t unsigned long
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+typedef efab_qword_t falcon_rx_desc_t;
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+typedef efab_qword_t falcon_tx_desc_t;
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+typedef efab_qword_t falcon_event_t;
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+
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+#define EFAB_BUF_ALIGN 4096
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+#define EFAB_RXD_SIZE 512
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+#define EFAB_TXD_SIZE 512
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+#define EFAB_EVQ_SIZE 512
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+
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+#define EFAB_NUM_RX_DESC 16
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+#define EFAB_RX_BUF_SIZE 1600
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+
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+/**************************************************************************
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+ *
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+ * Data structures
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+ *
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+ **************************************************************************
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+ */
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+
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+struct efab_nic;
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+
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+/* A buffer table allocation backing a tx dma, rx dma or eventq */
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+struct efab_special_buffer {
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+ dma_addr_t dma_addr;
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+ int id;
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+};
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+
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+/* A TX queue */
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+struct efab_tx_queue {
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+ /* The hardware ring */
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+ falcon_tx_desc_t *ring;
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+
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+ /* The software ring storing io_buffers. */
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+ struct io_buffer *buf[EFAB_TXD_SIZE];
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+
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+ /* The buffer table reservation pushed to hardware */
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+ struct efab_special_buffer entry;
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+
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+ /* Software descriptor write ptr */
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+ unsigned int write_ptr;
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+
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+ /* Hardware descriptor read ptr */
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+ unsigned int read_ptr;
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+};
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+
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+/* An RX queue */
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+struct efab_rx_queue {
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+ /* The hardware ring */
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+ falcon_rx_desc_t *ring;
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+
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+ /* The software ring storing io_buffers */
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+ struct io_buffer *buf[EFAB_NUM_RX_DESC];
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+
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+ /* The buffer table reservation pushed to hardware */
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+ struct efab_special_buffer entry;
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+
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+ /* Descriptor write ptr, into both the hardware and software rings */
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+ unsigned int write_ptr;
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+
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+ /* Hardware completion ptr */
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+ unsigned int read_ptr;
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+};
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+
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+/* An event queue */
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+struct efab_ev_queue {
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+ /* The hardware ring to push to hardware.
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+ * Must be the first entry in the structure */
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+ falcon_event_t *ring;
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+
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+ /* The buffer table reservation pushed to hardware */
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+ struct efab_special_buffer entry;
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+
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+ /* Pointers into the ring */
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+ unsigned int read_ptr;
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+};
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+
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+struct efab_mac_operations {
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+ int ( * init ) ( struct efab_nic *efab );
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+};
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+
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+struct efab_phy_operations {
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+ int ( * init ) ( struct efab_nic *efab );
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+ unsigned int mmds;
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+};
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+
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+struct efab_board_operations {
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+ int ( * init ) ( struct efab_nic *efab );
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+ void ( * fini ) ( struct efab_nic *efab );
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+};
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+
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+struct efab_nic {
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+ struct net_device *netdev;
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+ int pci_revision;
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+ int is_asic;
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+
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+ /* I2C bit-bashed interface */
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+ struct i2c_bit_basher i2c_bb;
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+
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+ /** SPI bus and devices, and the user visible NVO area */
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+ struct spi_bus spi_bus;
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+ struct spi_device spi_flash;
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+ struct spi_device spi_eeprom;
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+ struct spi_device *spi;
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+ struct nvo_block nvo;
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+
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+ /** Board, MAC, and PHY operations tables */
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+ struct efab_board_operations *board_op;
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+ struct efab_mac_operations *mac_op;
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+ struct efab_phy_operations *phy_op;
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+
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+ /* PHY and board types */
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+ int phy_addr;
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+ int phy_type;
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+ int phy_10g;
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+ int board_type;
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+
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+ /** Memory and IO base */
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+ void *membase;
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+ unsigned int iobase;
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+
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+ /* Buffer table allocation head */
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+ int buffer_head;
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+
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+ /* Queues */
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+ struct efab_rx_queue rx_queue;
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+ struct efab_tx_queue tx_queue;
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+ struct efab_ev_queue ev_queue;
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+
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+ /** MAC address */
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+ uint8_t mac_addr[ETH_ALEN];
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+ /** GMII link options */
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+ unsigned int link_options;
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+ /** Link status */
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+ int link_up;
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+
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+ /** INT_REG_KER */
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+ efab_oword_t int_ker __attribute__ (( aligned ( 16 ) ));
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+};
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+#endif /* EFAB_NIC_H */
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+
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