Release 4.18 drivers/net/ethernet/intel/ixgb/ixgb.h
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 1999 - 2008 Intel Corporation. */
#ifndef _IXGB_H_
#define _IXGB_H_
#include <linux/stddef.h>
#include <linux/module.h>
#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/string.h>
#include <linux/pagemap.h>
#include <linux/dma-mapping.h>
#include <linux/bitops.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <linux/capability.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <net/pkt_sched.h>
#include <linux/list.h>
#include <linux/reboot.h>
#include <net/checksum.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#define BAR_0 0
#define BAR_1 1
#define BAR_5 5
struct ixgb_adapter;
#include "ixgb_hw.h"
#include "ixgb_ee.h"
#include "ixgb_ids.h"
/* TX/RX descriptor defines */
#define DEFAULT_TXD 256
#define MAX_TXD 4096
#define MIN_TXD 64
/* hardware cannot reliably support more than 512 descriptors owned by
* hardware descriptor cache otherwise an unreliable ring under heavy
* receive load may result */
#define DEFAULT_RXD 512
#define MAX_RXD 512
#define MIN_RXD 64
/* Supported Rx Buffer Sizes */
#define IXGB_RXBUFFER_2048 2048
#define IXGB_RXBUFFER_4096 4096
#define IXGB_RXBUFFER_8192 8192
#define IXGB_RXBUFFER_16384 16384
/* How many Rx Buffers do we bundle into one write to the hardware ? */
#define IXGB_RX_BUFFER_WRITE 8
/* Must be power of 2 */
/* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer */
struct ixgb_buffer {
struct sk_buff *skb;
dma_addr_t dma;
unsigned long time_stamp;
u16 length;
u16 next_to_watch;
u16 mapped_as_page;
};
struct ixgb_desc_ring {
/* pointer to the descriptor ring memory */
void *desc;
/* physical address of the descriptor ring */
dma_addr_t dma;
/* length of descriptor ring in bytes */
unsigned int size;
/* number of descriptors in the ring */
unsigned int count;
/* next descriptor to associate a buffer with */
unsigned int next_to_use;
/* next descriptor to check for DD status bit */
unsigned int next_to_clean;
/* array of buffer information structs */
struct ixgb_buffer *buffer_info;
};
#define IXGB_DESC_UNUSED(R) \
((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
(R)->next_to_clean - (R)->next_to_use - 1)
#define IXGB_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
#define IXGB_RX_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_rx_desc)
#define IXGB_TX_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_tx_desc)
#define IXGB_CONTEXT_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_context_desc)
/* board specific private data structure */
struct ixgb_adapter {
struct timer_list watchdog_timer;
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
u32 bd_number;
u32 rx_buffer_len;
u32 part_num;
u16 link_speed;
u16 link_duplex;
struct work_struct tx_timeout_task;
/* TX */
struct ixgb_desc_ring tx_ring ____cacheline_aligned_in_smp;
unsigned int restart_queue;
unsigned long timeo_start;
u32 tx_cmd_type;
u64 hw_csum_tx_good;
u64 hw_csum_tx_error;
u32 tx_int_delay;
u32 tx_timeout_count;
bool tx_int_delay_enable;
bool detect_tx_hung;
/* RX */
struct ixgb_desc_ring rx_ring;
u64 hw_csum_rx_error;
u64 hw_csum_rx_good;
u32 rx_int_delay;
bool rx_csum;
/* OS defined structs */
struct napi_struct napi;
struct net_device *netdev;
struct pci_dev *pdev;
/* structs defined in ixgb_hw.h */
struct ixgb_hw hw;
u16 msg_enable;
struct ixgb_hw_stats stats;
u32 alloc_rx_buff_failed;
bool have_msi;
unsigned long flags;
};
enum ixgb_state_t {
/* TBD
__IXGB_TESTING,
__IXGB_RESETTING,
*/
__IXGB_DOWN
};
/* Exported from other modules */
void ixgb_check_options(struct ixgb_adapter *adapter);
void ixgb_set_ethtool_ops(struct net_device *netdev);
extern char ixgb_driver_name[];
extern const char ixgb_driver_version[];
void ixgb_set_speed_duplex(struct net_device *netdev);
int ixgb_up(struct ixgb_adapter *adapter);
void ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog);
void ixgb_reset(struct ixgb_adapter *adapter);
int ixgb_setup_rx_resources(struct ixgb_adapter *adapter);
int ixgb_setup_tx_resources(struct ixgb_adapter *adapter);
void ixgb_free_rx_resources(struct ixgb_adapter *adapter);
void ixgb_free_tx_resources(struct ixgb_adapter *adapter);
void ixgb_update_stats(struct ixgb_adapter *adapter);
#endif /* _IXGB_H_ */
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