diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgb/ixgb.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgb/ixgb.h | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb.h b/drivers/net/ethernet/intel/ixgb/ixgb.h new file mode 100644 index 000000000..81ac39576 --- /dev/null +++ b/drivers/net/ethernet/intel/ixgb/ixgb.h @@ -0,0 +1,179 @@ +/* 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 + +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[]; + +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_ */ |