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352 lines
9.4 KiB
352 lines
9.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* Copyright(c) 1999 - 2006 Intel Corporation. */ |
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/* Linux PRO/1000 Ethernet Driver main header file */ |
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#ifndef _E1000_H_ |
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#define _E1000_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/ipv6.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/mii.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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#define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ |
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PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} |
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struct e1000_adapter; |
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#include "e1000_hw.h" |
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#define E1000_MAX_INTR 10 |
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/* |
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* Count for polling __E1000_RESET condition every 10-20msec. |
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*/ |
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#define E1000_CHECK_RESET_COUNT 50 |
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/* TX/RX descriptor defines */ |
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#define E1000_DEFAULT_TXD 256 |
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#define E1000_MAX_TXD 256 |
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#define E1000_MIN_TXD 48 |
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#define E1000_MAX_82544_TXD 4096 |
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#define E1000_DEFAULT_RXD 256 |
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#define E1000_MAX_RXD 256 |
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#define E1000_MIN_RXD 48 |
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#define E1000_MAX_82544_RXD 4096 |
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#define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */ |
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#define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */ |
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/* this is the size past which hardware will drop packets when setting LPE=0 */ |
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#define MAXIMUM_ETHERNET_VLAN_SIZE 1522 |
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/* Supported Rx Buffer Sizes */ |
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#define E1000_RXBUFFER_128 128 /* Used for packet split */ |
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#define E1000_RXBUFFER_256 256 /* Used for packet split */ |
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#define E1000_RXBUFFER_512 512 |
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#define E1000_RXBUFFER_1024 1024 |
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#define E1000_RXBUFFER_2048 2048 |
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#define E1000_RXBUFFER_4096 4096 |
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#define E1000_RXBUFFER_8192 8192 |
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#define E1000_RXBUFFER_16384 16384 |
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/* SmartSpeed delimiters */ |
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#define E1000_SMARTSPEED_DOWNSHIFT 3 |
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#define E1000_SMARTSPEED_MAX 15 |
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/* Packet Buffer allocations */ |
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#define E1000_PBA_BYTES_SHIFT 0xA |
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#define E1000_TX_HEAD_ADDR_SHIFT 7 |
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#define E1000_PBA_TX_MASK 0xFFFF0000 |
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/* Flow Control Watermarks */ |
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#define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ |
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#define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ |
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#define E1000_FC_PAUSE_TIME 0xFFFF /* pause for the max or until send xon */ |
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/* How many Tx Descriptors do we need to call netif_wake_queue ? */ |
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#define E1000_TX_QUEUE_WAKE 16 |
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/* How many Rx Buffers do we bundle into one write to the hardware ? */ |
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#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ |
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#define AUTO_ALL_MODES 0 |
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#define E1000_EEPROM_82544_APM 0x0004 |
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#define E1000_EEPROM_APME 0x0400 |
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#ifndef E1000_MASTER_SLAVE |
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/* Switch to override PHY master/slave setting */ |
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#define E1000_MASTER_SLAVE e1000_ms_hw_default |
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#endif |
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#define E1000_MNG_VLAN_NONE (-1) |
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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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*/ |
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struct e1000_tx_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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bool mapped_as_page; |
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unsigned short segs; |
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unsigned int bytecount; |
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}; |
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struct e1000_rx_buffer { |
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union { |
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struct page *page; /* jumbo: alloc_page */ |
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u8 *data; /* else, netdev_alloc_frag */ |
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} rxbuf; |
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dma_addr_t dma; |
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}; |
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struct e1000_tx_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 e1000_tx_buffer *buffer_info; |
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u16 tdh; |
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u16 tdt; |
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bool last_tx_tso; |
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}; |
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struct e1000_rx_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 e1000_rx_buffer *buffer_info; |
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struct sk_buff *rx_skb_top; |
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/* cpu for rx queue */ |
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int cpu; |
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u16 rdh; |
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u16 rdt; |
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}; |
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#define E1000_DESC_UNUSED(R) \ |
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({ \ |
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unsigned int clean = smp_load_acquire(&(R)->next_to_clean); \ |
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unsigned int use = READ_ONCE((R)->next_to_use); \ |
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(clean > use ? 0 : (R)->count) + clean - use - 1; \ |
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}) |
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#define E1000_RX_DESC_EXT(R, i) \ |
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(&(((union e1000_rx_desc_extended *)((R).desc))[i])) |
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#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) |
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#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) |
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#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) |
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#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) |
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/* board specific private data structure */ |
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struct e1000_adapter { |
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unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; |
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u16 mng_vlan_id; |
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u32 bd_number; |
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u32 rx_buffer_len; |
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u32 wol; |
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u32 smartspeed; |
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u32 en_mng_pt; |
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u16 link_speed; |
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u16 link_duplex; |
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spinlock_t stats_lock; |
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unsigned int total_tx_bytes; |
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unsigned int total_tx_packets; |
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unsigned int total_rx_bytes; |
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unsigned int total_rx_packets; |
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/* Interrupt Throttle Rate */ |
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u32 itr; |
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u32 itr_setting; |
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u16 tx_itr; |
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u16 rx_itr; |
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u8 fc_autoneg; |
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/* TX */ |
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struct e1000_tx_ring *tx_ring; /* One per active queue */ |
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unsigned int restart_queue; |
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u32 txd_cmd; |
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u32 tx_int_delay; |
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u32 tx_abs_int_delay; |
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u32 gotcl; |
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u64 gotcl_old; |
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u64 tpt_old; |
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u64 colc_old; |
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u32 tx_timeout_count; |
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u32 tx_fifo_head; |
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u32 tx_head_addr; |
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u32 tx_fifo_size; |
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u8 tx_timeout_factor; |
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atomic_t tx_fifo_stall; |
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bool pcix_82544; |
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bool detect_tx_hung; |
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bool dump_buffers; |
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/* RX */ |
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bool (*clean_rx)(struct e1000_adapter *adapter, |
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struct e1000_rx_ring *rx_ring, |
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int *work_done, int work_to_do); |
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void (*alloc_rx_buf)(struct e1000_adapter *adapter, |
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struct e1000_rx_ring *rx_ring, |
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int cleaned_count); |
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struct e1000_rx_ring *rx_ring; /* One per active queue */ |
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struct napi_struct napi; |
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int num_tx_queues; |
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int num_rx_queues; |
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u64 hw_csum_err; |
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u64 hw_csum_good; |
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u32 alloc_rx_buff_failed; |
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u32 rx_int_delay; |
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u32 rx_abs_int_delay; |
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bool rx_csum; |
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u32 gorcl; |
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u64 gorcl_old; |
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/* OS defined structs */ |
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struct net_device *netdev; |
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struct pci_dev *pdev; |
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/* structs defined in e1000_hw.h */ |
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struct e1000_hw hw; |
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struct e1000_hw_stats stats; |
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struct e1000_phy_info phy_info; |
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struct e1000_phy_stats phy_stats; |
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u32 test_icr; |
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struct e1000_tx_ring test_tx_ring; |
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struct e1000_rx_ring test_rx_ring; |
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int msg_enable; |
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/* to not mess up cache alignment, always add to the bottom */ |
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bool tso_force; |
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bool smart_power_down; /* phy smart power down */ |
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bool quad_port_a; |
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unsigned long flags; |
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u32 eeprom_wol; |
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/* for ioport free */ |
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int bars; |
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int need_ioport; |
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bool discarding; |
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struct work_struct reset_task; |
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struct delayed_work watchdog_task; |
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struct delayed_work fifo_stall_task; |
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struct delayed_work phy_info_task; |
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}; |
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enum e1000_state_t { |
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__E1000_TESTING, |
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__E1000_RESETTING, |
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__E1000_DOWN, |
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__E1000_DISABLED |
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}; |
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#undef pr_fmt |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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struct net_device *e1000_get_hw_dev(struct e1000_hw *hw); |
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#define e_dbg(format, arg...) \ |
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netdev_dbg(e1000_get_hw_dev(hw), format, ## arg) |
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#define e_err(msglvl, format, arg...) \ |
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netif_err(adapter, msglvl, adapter->netdev, format, ## arg) |
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#define e_info(msglvl, format, arg...) \ |
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netif_info(adapter, msglvl, adapter->netdev, format, ## arg) |
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#define e_warn(msglvl, format, arg...) \ |
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netif_warn(adapter, msglvl, adapter->netdev, format, ## arg) |
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#define e_notice(msglvl, format, arg...) \ |
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netif_notice(adapter, msglvl, adapter->netdev, format, ## arg) |
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#define e_dev_info(format, arg...) \ |
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dev_info(&adapter->pdev->dev, format, ## arg) |
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#define e_dev_warn(format, arg...) \ |
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dev_warn(&adapter->pdev->dev, format, ## arg) |
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#define e_dev_err(format, arg...) \ |
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dev_err(&adapter->pdev->dev, format, ## arg) |
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extern char e1000_driver_name[]; |
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int e1000_open(struct net_device *netdev); |
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int e1000_close(struct net_device *netdev); |
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int e1000_up(struct e1000_adapter *adapter); |
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void e1000_down(struct e1000_adapter *adapter); |
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void e1000_reinit_locked(struct e1000_adapter *adapter); |
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void e1000_reset(struct e1000_adapter *adapter); |
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int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx); |
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int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); |
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int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); |
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void e1000_free_all_rx_resources(struct e1000_adapter *adapter); |
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void e1000_free_all_tx_resources(struct e1000_adapter *adapter); |
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void e1000_update_stats(struct e1000_adapter *adapter); |
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bool e1000_has_link(struct e1000_adapter *adapter); |
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void e1000_power_up_phy(struct e1000_adapter *); |
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void e1000_set_ethtool_ops(struct net_device *netdev); |
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void e1000_check_options(struct e1000_adapter *adapter); |
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char *e1000_get_hw_dev_name(struct e1000_hw *hw); |
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#endif /* _E1000_H_ */
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