ixgb.h (4704B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* Copyright(c) 1999 - 2008 Intel Corporation. */ 3 4#ifndef _IXGB_H_ 5#define _IXGB_H_ 6 7#include <linux/stddef.h> 8#include <linux/module.h> 9#include <linux/types.h> 10#include <asm/byteorder.h> 11#include <linux/mm.h> 12#include <linux/errno.h> 13#include <linux/ioport.h> 14#include <linux/pci.h> 15#include <linux/kernel.h> 16#include <linux/netdevice.h> 17#include <linux/etherdevice.h> 18#include <linux/skbuff.h> 19#include <linux/delay.h> 20#include <linux/timer.h> 21#include <linux/slab.h> 22#include <linux/vmalloc.h> 23#include <linux/interrupt.h> 24#include <linux/string.h> 25#include <linux/pagemap.h> 26#include <linux/dma-mapping.h> 27#include <linux/bitops.h> 28#include <asm/io.h> 29#include <asm/irq.h> 30#include <linux/capability.h> 31#include <linux/in.h> 32#include <linux/ip.h> 33#include <linux/tcp.h> 34#include <linux/udp.h> 35#include <net/pkt_sched.h> 36#include <linux/list.h> 37#include <linux/reboot.h> 38#include <net/checksum.h> 39 40#include <linux/ethtool.h> 41#include <linux/if_vlan.h> 42 43#define BAR_0 0 44#define BAR_1 1 45 46struct ixgb_adapter; 47#include "ixgb_hw.h" 48#include "ixgb_ee.h" 49#include "ixgb_ids.h" 50 51/* TX/RX descriptor defines */ 52#define DEFAULT_TXD 256 53#define MAX_TXD 4096 54#define MIN_TXD 64 55 56/* hardware cannot reliably support more than 512 descriptors owned by 57 * hardware descriptor cache otherwise an unreliable ring under heavy 58 * receive load may result */ 59#define DEFAULT_RXD 512 60#define MAX_RXD 512 61#define MIN_RXD 64 62 63/* Supported Rx Buffer Sizes */ 64#define IXGB_RXBUFFER_2048 2048 65#define IXGB_RXBUFFER_4096 4096 66#define IXGB_RXBUFFER_8192 8192 67#define IXGB_RXBUFFER_16384 16384 68 69/* How many Rx Buffers do we bundle into one write to the hardware ? */ 70#define IXGB_RX_BUFFER_WRITE 8 /* Must be power of 2 */ 71 72/* wrapper around a pointer to a socket buffer, 73 * so a DMA handle can be stored along with the buffer */ 74struct ixgb_buffer { 75 struct sk_buff *skb; 76 dma_addr_t dma; 77 unsigned long time_stamp; 78 u16 length; 79 u16 next_to_watch; 80 u16 mapped_as_page; 81}; 82 83struct ixgb_desc_ring { 84 /* pointer to the descriptor ring memory */ 85 void *desc; 86 /* physical address of the descriptor ring */ 87 dma_addr_t dma; 88 /* length of descriptor ring in bytes */ 89 unsigned int size; 90 /* number of descriptors in the ring */ 91 unsigned int count; 92 /* next descriptor to associate a buffer with */ 93 unsigned int next_to_use; 94 /* next descriptor to check for DD status bit */ 95 unsigned int next_to_clean; 96 /* array of buffer information structs */ 97 struct ixgb_buffer *buffer_info; 98}; 99 100#define IXGB_DESC_UNUSED(R) \ 101 ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ 102 (R)->next_to_clean - (R)->next_to_use - 1) 103 104#define IXGB_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) 105#define IXGB_RX_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_rx_desc) 106#define IXGB_TX_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_tx_desc) 107#define IXGB_CONTEXT_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_context_desc) 108 109/* board specific private data structure */ 110 111struct ixgb_adapter { 112 struct timer_list watchdog_timer; 113 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 114 u32 bd_number; 115 u32 rx_buffer_len; 116 u32 part_num; 117 u16 link_speed; 118 u16 link_duplex; 119 struct work_struct tx_timeout_task; 120 121 /* TX */ 122 struct ixgb_desc_ring tx_ring ____cacheline_aligned_in_smp; 123 unsigned int restart_queue; 124 unsigned long timeo_start; 125 u32 tx_cmd_type; 126 u64 hw_csum_tx_good; 127 u64 hw_csum_tx_error; 128 u32 tx_int_delay; 129 u32 tx_timeout_count; 130 bool tx_int_delay_enable; 131 bool detect_tx_hung; 132 133 /* RX */ 134 struct ixgb_desc_ring rx_ring; 135 u64 hw_csum_rx_error; 136 u64 hw_csum_rx_good; 137 u32 rx_int_delay; 138 bool rx_csum; 139 140 /* OS defined structs */ 141 struct napi_struct napi; 142 struct net_device *netdev; 143 struct pci_dev *pdev; 144 145 /* structs defined in ixgb_hw.h */ 146 struct ixgb_hw hw; 147 u16 msg_enable; 148 struct ixgb_hw_stats stats; 149 u32 alloc_rx_buff_failed; 150 bool have_msi; 151 unsigned long flags; 152}; 153 154enum ixgb_state_t { 155 /* TBD 156 __IXGB_TESTING, 157 __IXGB_RESETTING, 158 */ 159 __IXGB_DOWN 160}; 161 162/* Exported from other modules */ 163void ixgb_check_options(struct ixgb_adapter *adapter); 164void ixgb_set_ethtool_ops(struct net_device *netdev); 165extern char ixgb_driver_name[]; 166 167void ixgb_set_speed_duplex(struct net_device *netdev); 168 169int ixgb_up(struct ixgb_adapter *adapter); 170void ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog); 171void ixgb_reset(struct ixgb_adapter *adapter); 172int ixgb_setup_rx_resources(struct ixgb_adapter *adapter); 173int ixgb_setup_tx_resources(struct ixgb_adapter *adapter); 174void ixgb_free_rx_resources(struct ixgb_adapter *adapter); 175void ixgb_free_tx_resources(struct ixgb_adapter *adapter); 176void ixgb_update_stats(struct ixgb_adapter *adapter); 177 178 179#endif /* _IXGB_H_ */