355 lines
9.4 KiB
C
355 lines
9.4 KiB
C
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/* 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 BAR_5 5
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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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extern const char e1000_driver_version[];
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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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