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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | /* 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_ */ |