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