mirror of https://gitee.com/openkylin/linux.git
592 lines
17 KiB
C
592 lines
17 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright(c) 1999 - 2018 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/bitops.h>
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#include <linux/types.h>
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#include <linux/timer.h>
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#include <linux/workqueue.h>
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#include <linux/io.h>
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#include <linux/netdevice.h>
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#include <linux/pci.h>
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#include <linux/crc32.h>
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#include <linux/if_vlan.h>
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#include <linux/timecounter.h>
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#include <linux/net_tstamp.h>
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#include <linux/ptp_clock_kernel.h>
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#include <linux/ptp_classify.h>
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#include <linux/mii.h>
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#include <linux/mdio.h>
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#include <linux/pm_qos.h>
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#include "hw.h"
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struct e1000_info;
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#define e_dbg(format, arg...) \
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netdev_dbg(hw->adapter->netdev, format, ## arg)
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#define e_err(format, arg...) \
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netdev_err(adapter->netdev, format, ## arg)
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#define e_info(format, arg...) \
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netdev_info(adapter->netdev, format, ## arg)
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#define e_warn(format, arg...) \
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netdev_warn(adapter->netdev, format, ## arg)
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#define e_notice(format, arg...) \
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netdev_notice(adapter->netdev, format, ## arg)
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/* Interrupt modes, as used by the IntMode parameter */
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#define E1000E_INT_MODE_LEGACY 0
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#define E1000E_INT_MODE_MSI 1
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#define E1000E_INT_MODE_MSIX 2
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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 4096
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#define E1000_MIN_TXD 64
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#define E1000_DEFAULT_RXD 256
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#define E1000_MAX_RXD 4096
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#define E1000_MIN_RXD 64
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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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#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */
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/* How many Tx Descriptors do we need to call netif_wake_queue ? */
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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_APME 0x0400
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#define E1000_MNG_VLAN_NONE (-1)
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#define DEFAULT_JUMBO 9234
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/* Time to wait before putting the device into D3 if there's no link (in ms). */
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#define LINK_TIMEOUT 100
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/* Count for polling __E1000_RESET condition every 10-20msec.
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* Experimentation has shown the reset can take approximately 210msec.
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*/
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#define E1000_CHECK_RESET_COUNT 25
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#define PCICFG_DESC_RING_STATUS 0xe4
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#define FLUSH_DESC_REQUIRED 0x100
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/* in the case of WTHRESH, it appears at least the 82571/2 hardware
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* writes back 4 descriptors when WTHRESH=5, and 3 descriptors when
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* WTHRESH=4, so a setting of 5 gives the most efficient bus
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* utilization but to avoid possible Tx stalls, set it to 1
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*/
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#define E1000_TXDCTL_DMA_BURST_ENABLE \
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(E1000_TXDCTL_GRAN | /* set descriptor granularity */ \
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E1000_TXDCTL_COUNT_DESC | \
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(1u << 16) | /* wthresh must be +1 more than desired */\
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(1u << 8) | /* hthresh */ \
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0x1f) /* pthresh */
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#define E1000_RXDCTL_DMA_BURST_ENABLE \
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(0x01000000 | /* set descriptor granularity */ \
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(4u << 16) | /* set writeback threshold */ \
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(4u << 8) | /* set prefetch threshold */ \
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0x20) /* set hthresh */
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#define E1000_TIDV_FPD BIT(31)
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#define E1000_RDTR_FPD BIT(31)
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enum e1000_boards {
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board_82571,
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board_82572,
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board_82573,
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board_82574,
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board_82583,
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board_80003es2lan,
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board_ich8lan,
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board_ich9lan,
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board_ich10lan,
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board_pchlan,
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board_pch2lan,
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board_pch_lpt,
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board_pch_spt,
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board_pch_cnp
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};
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struct e1000_ps_page {
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struct page *page;
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u64 dma; /* must be u64 - written to hw */
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};
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/* wrappers 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_buffer {
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dma_addr_t dma;
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struct sk_buff *skb;
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union {
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/* Tx */
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struct {
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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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unsigned int segs;
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unsigned int bytecount;
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u16 mapped_as_page;
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};
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/* Rx */
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struct {
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/* arrays of page information for packet split */
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struct e1000_ps_page *ps_pages;
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struct page *page;
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};
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};
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};
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struct e1000_ring {
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struct e1000_adapter *adapter; /* back pointer to adapter */
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void *desc; /* pointer to ring memory */
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dma_addr_t dma; /* phys address of ring */
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unsigned int size; /* length of ring in bytes */
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unsigned int count; /* number of desc. in ring */
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u16 next_to_use;
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u16 next_to_clean;
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void __iomem *head;
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void __iomem *tail;
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/* array of buffer information structs */
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struct e1000_buffer *buffer_info;
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char name[IFNAMSIZ + 5];
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u32 ims_val;
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u32 itr_val;
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void __iomem *itr_register;
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int set_itr;
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struct sk_buff *rx_skb_top;
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};
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/* PHY register snapshot values */
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struct e1000_phy_regs {
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u16 bmcr; /* basic mode control register */
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u16 bmsr; /* basic mode status register */
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u16 advertise; /* auto-negotiation advertisement */
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u16 lpa; /* link partner ability register */
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u16 expansion; /* auto-negotiation expansion reg */
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u16 ctrl1000; /* 1000BASE-T control register */
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u16 stat1000; /* 1000BASE-T status register */
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u16 estatus; /* extended status register */
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};
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/* board specific private data structure */
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struct e1000_adapter {
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struct timer_list watchdog_timer;
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struct timer_list phy_info_timer;
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struct timer_list blink_timer;
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struct work_struct reset_task;
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struct work_struct watchdog_task;
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const struct e1000_info *ei;
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unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
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u32 bd_number;
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u32 rx_buffer_len;
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u16 mng_vlan_id;
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u16 link_speed;
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u16 link_duplex;
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u16 eeprom_vers;
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/* track device up/down/testing state */
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unsigned long state;
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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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/* Tx - one ring per active queue */
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struct e1000_ring *tx_ring ____cacheline_aligned_in_smp;
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u32 tx_fifo_limit;
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struct napi_struct napi;
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unsigned int uncorr_errors; /* uncorrectable ECC errors */
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unsigned int corr_errors; /* correctable ECC errors */
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unsigned int restart_queue;
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u32 txd_cmd;
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bool detect_tx_hung;
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bool tx_hang_recheck;
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u8 tx_timeout_factor;
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u32 tx_int_delay;
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u32 tx_abs_int_delay;
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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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/* Tx stats */
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u64 tpt_old;
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u64 colc_old;
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u32 gotc;
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u64 gotc_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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u32 tx_dma_failed;
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u32 tx_hwtstamp_timeouts;
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u32 tx_hwtstamp_skipped;
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/* Rx */
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bool (*clean_rx)(struct e1000_ring *ring, int *work_done,
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int work_to_do) ____cacheline_aligned_in_smp;
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void (*alloc_rx_buf)(struct e1000_ring *ring, int cleaned_count,
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gfp_t gfp);
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struct e1000_ring *rx_ring;
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u32 rx_int_delay;
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u32 rx_abs_int_delay;
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/* Rx stats */
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u64 hw_csum_err;
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u64 hw_csum_good;
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u64 rx_hdr_split;
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u32 gorc;
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u64 gorc_old;
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u32 alloc_rx_buff_failed;
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u32 rx_dma_failed;
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u32 rx_hwtstamp_cleared;
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unsigned int rx_ps_pages;
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u16 rx_ps_bsize0;
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u32 max_frame_size;
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u32 min_frame_size;
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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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spinlock_t stats64_lock; /* protects statistics counters */
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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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/* Snapshot of PHY registers */
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struct e1000_phy_regs phy_regs;
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struct e1000_ring test_tx_ring;
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struct e1000_ring test_rx_ring;
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u32 test_icr;
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u32 msg_enable;
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unsigned int num_vectors;
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struct msix_entry *msix_entries;
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int int_mode;
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u32 eiac_mask;
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u32 eeprom_wol;
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u32 wol;
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u32 pba;
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u32 max_hw_frame_size;
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bool fc_autoneg;
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unsigned int flags;
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unsigned int flags2;
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struct work_struct downshift_task;
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struct work_struct update_phy_task;
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struct work_struct print_hang_task;
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int phy_hang_count;
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u16 tx_ring_count;
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u16 rx_ring_count;
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struct hwtstamp_config hwtstamp_config;
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struct delayed_work systim_overflow_work;
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struct sk_buff *tx_hwtstamp_skb;
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unsigned long tx_hwtstamp_start;
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struct work_struct tx_hwtstamp_work;
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spinlock_t systim_lock; /* protects SYSTIML/H regsters */
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struct cyclecounter cc;
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struct timecounter tc;
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struct ptp_clock *ptp_clock;
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struct ptp_clock_info ptp_clock_info;
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struct pm_qos_request pm_qos_req;
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s32 ptp_delta;
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u16 eee_advert;
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};
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struct e1000_info {
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enum e1000_mac_type mac;
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unsigned int flags;
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unsigned int flags2;
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u32 pba;
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u32 max_hw_frame_size;
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s32 (*get_variants)(struct e1000_adapter *);
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const struct e1000_mac_operations *mac_ops;
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const struct e1000_phy_operations *phy_ops;
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const struct e1000_nvm_operations *nvm_ops;
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};
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s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca);
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/* The system time is maintained by a 64-bit counter comprised of the 32-bit
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* SYSTIMH and SYSTIML registers. How the counter increments (and therefore
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* its resolution) is based on the contents of the TIMINCA register - it
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* increments every incperiod (bits 31:24) clock ticks by incvalue (bits 23:0).
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* For the best accuracy, the incperiod should be as small as possible. The
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* incvalue is scaled by a factor as large as possible (while still fitting
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* in bits 23:0) so that relatively small clock corrections can be made.
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*
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* As a result, a shift of INCVALUE_SHIFT_n is used to fit a value of
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* INCVALUE_n into the TIMINCA register allowing 32+8+(24-INCVALUE_SHIFT_n)
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* bits to count nanoseconds leaving the rest for fractional nonseconds.
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*/
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#define INCVALUE_96MHZ 125
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#define INCVALUE_SHIFT_96MHZ 17
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#define INCPERIOD_SHIFT_96MHZ 2
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#define INCPERIOD_96MHZ (12 >> INCPERIOD_SHIFT_96MHZ)
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#define INCVALUE_25MHZ 40
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#define INCVALUE_SHIFT_25MHZ 18
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#define INCPERIOD_25MHZ 1
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#define INCVALUE_24MHZ 125
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#define INCVALUE_SHIFT_24MHZ 14
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#define INCPERIOD_24MHZ 3
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#define INCVALUE_38400KHZ 26
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#define INCVALUE_SHIFT_38400KHZ 19
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#define INCPERIOD_38400KHZ 1
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/* Another drawback of scaling the incvalue by a large factor is the
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* 64-bit SYSTIM register overflows more quickly. This is dealt with
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* by simply reading the clock before it overflows.
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*
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* Clock ns bits Overflows after
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* ~~~~~~ ~~~~~~~ ~~~~~~~~~~~~~~~
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* 96MHz 47-bit 2^(47-INCPERIOD_SHIFT_96MHz) / 10^9 / 3600 = 9.77 hrs
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* 25MHz 46-bit 2^46 / 10^9 / 3600 = 19.55 hours
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*/
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#define E1000_SYSTIM_OVERFLOW_PERIOD (HZ * 60 * 60 * 4)
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#define E1000_MAX_82574_SYSTIM_REREADS 50
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#define E1000_82574_SYSTIM_EPSILON (1ULL << 35ULL)
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/* hardware capability, feature, and workaround flags */
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#define FLAG_HAS_AMT BIT(0)
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#define FLAG_HAS_FLASH BIT(1)
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#define FLAG_HAS_HW_VLAN_FILTER BIT(2)
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#define FLAG_HAS_WOL BIT(3)
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/* reserved BIT(4) */
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#define FLAG_HAS_CTRLEXT_ON_LOAD BIT(5)
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#define FLAG_HAS_SWSM_ON_LOAD BIT(6)
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#define FLAG_HAS_JUMBO_FRAMES BIT(7)
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#define FLAG_READ_ONLY_NVM BIT(8)
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#define FLAG_IS_ICH BIT(9)
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#define FLAG_HAS_MSIX BIT(10)
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#define FLAG_HAS_SMART_POWER_DOWN BIT(11)
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#define FLAG_IS_QUAD_PORT_A BIT(12)
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#define FLAG_IS_QUAD_PORT BIT(13)
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#define FLAG_HAS_HW_TIMESTAMP BIT(14)
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#define FLAG_APME_IN_WUC BIT(15)
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#define FLAG_APME_IN_CTRL3 BIT(16)
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#define FLAG_APME_CHECK_PORT_B BIT(17)
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#define FLAG_DISABLE_FC_PAUSE_TIME BIT(18)
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#define FLAG_NO_WAKE_UCAST BIT(19)
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#define FLAG_MNG_PT_ENABLED BIT(20)
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#define FLAG_RESET_OVERWRITES_LAA BIT(21)
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#define FLAG_TARC_SPEED_MODE_BIT BIT(22)
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#define FLAG_TARC_SET_BIT_ZERO BIT(23)
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#define FLAG_RX_NEEDS_RESTART BIT(24)
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#define FLAG_LSC_GIG_SPEED_DROP BIT(25)
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#define FLAG_SMART_POWER_DOWN BIT(26)
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#define FLAG_MSI_ENABLED BIT(27)
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/* reserved BIT(28) */
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#define FLAG_TSO_FORCE BIT(29)
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#define FLAG_RESTART_NOW BIT(30)
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#define FLAG_MSI_TEST_FAILED BIT(31)
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#define FLAG2_CRC_STRIPPING BIT(0)
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#define FLAG2_HAS_PHY_WAKEUP BIT(1)
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#define FLAG2_IS_DISCARDING BIT(2)
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#define FLAG2_DISABLE_ASPM_L1 BIT(3)
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#define FLAG2_HAS_PHY_STATS BIT(4)
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#define FLAG2_HAS_EEE BIT(5)
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#define FLAG2_DMA_BURST BIT(6)
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#define FLAG2_DISABLE_ASPM_L0S BIT(7)
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#define FLAG2_DISABLE_AIM BIT(8)
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#define FLAG2_CHECK_PHY_HANG BIT(9)
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#define FLAG2_NO_DISABLE_RX BIT(10)
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#define FLAG2_PCIM2PCI_ARBITER_WA BIT(11)
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#define FLAG2_DFLT_CRC_STRIPPING BIT(12)
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#define FLAG2_CHECK_RX_HWTSTAMP BIT(13)
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#define FLAG2_CHECK_SYSTIM_OVERFLOW BIT(14)
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#define FLAG2_ENABLE_S0IX_FLOWS BIT(15)
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#define E1000_RX_DESC_PS(R, i) \
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(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
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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_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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enum e1000_state_t {
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__E1000_TESTING,
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__E1000_RESETTING,
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__E1000_ACCESS_SHARED_RESOURCE,
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__E1000_DOWN
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};
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enum latency_range {
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lowest_latency = 0,
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low_latency = 1,
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bulk_latency = 2,
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latency_invalid = 255
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};
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extern char e1000e_driver_name[];
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void e1000e_check_options(struct e1000_adapter *adapter);
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void e1000e_set_ethtool_ops(struct net_device *netdev);
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int e1000e_open(struct net_device *netdev);
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int e1000e_close(struct net_device *netdev);
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void e1000e_up(struct e1000_adapter *adapter);
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void e1000e_down(struct e1000_adapter *adapter, bool reset);
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void e1000e_reinit_locked(struct e1000_adapter *adapter);
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void e1000e_reset(struct e1000_adapter *adapter);
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void e1000e_power_up_phy(struct e1000_adapter *adapter);
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int e1000e_setup_rx_resources(struct e1000_ring *ring);
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int e1000e_setup_tx_resources(struct e1000_ring *ring);
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void e1000e_free_rx_resources(struct e1000_ring *ring);
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void e1000e_free_tx_resources(struct e1000_ring *ring);
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void e1000e_get_stats64(struct net_device *netdev,
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struct rtnl_link_stats64 *stats);
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void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
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void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
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void e1000e_get_hw_control(struct e1000_adapter *adapter);
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void e1000e_release_hw_control(struct e1000_adapter *adapter);
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void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);
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extern unsigned int copybreak;
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extern const struct e1000_info e1000_82571_info;
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extern const struct e1000_info e1000_82572_info;
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extern const struct e1000_info e1000_82573_info;
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extern const struct e1000_info e1000_82574_info;
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extern const struct e1000_info e1000_82583_info;
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extern const struct e1000_info e1000_ich8_info;
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extern const struct e1000_info e1000_ich9_info;
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extern const struct e1000_info e1000_ich10_info;
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extern const struct e1000_info e1000_pch_info;
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extern const struct e1000_info e1000_pch2_info;
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extern const struct e1000_info e1000_pch_lpt_info;
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extern const struct e1000_info e1000_pch_spt_info;
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extern const struct e1000_info e1000_pch_cnp_info;
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extern const struct e1000_info e1000_es2_info;
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void e1000e_ptp_init(struct e1000_adapter *adapter);
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void e1000e_ptp_remove(struct e1000_adapter *adapter);
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u64 e1000e_read_systim(struct e1000_adapter *adapter,
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struct ptp_system_timestamp *sts);
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static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
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{
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return hw->phy.ops.reset(hw);
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}
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static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
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{
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return hw->phy.ops.read_reg(hw, offset, data);
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}
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static inline s32 e1e_rphy_locked(struct e1000_hw *hw, u32 offset, u16 *data)
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{
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return hw->phy.ops.read_reg_locked(hw, offset, data);
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}
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static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
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{
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return hw->phy.ops.write_reg(hw, offset, data);
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}
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static inline s32 e1e_wphy_locked(struct e1000_hw *hw, u32 offset, u16 data)
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{
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return hw->phy.ops.write_reg_locked(hw, offset, data);
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}
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void e1000e_reload_nvm_generic(struct e1000_hw *hw);
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static inline s32 e1000e_read_mac_addr(struct e1000_hw *hw)
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{
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if (hw->mac.ops.read_mac_addr)
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return hw->mac.ops.read_mac_addr(hw);
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return e1000_read_mac_addr_generic(hw);
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}
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static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
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{
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return hw->nvm.ops.validate(hw);
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}
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static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
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{
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return hw->nvm.ops.update(hw);
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}
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static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words,
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u16 *data)
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{
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return hw->nvm.ops.read(hw, offset, words, data);
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}
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static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words,
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u16 *data)
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{
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return hw->nvm.ops.write(hw, offset, words, data);
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}
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static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
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|
{
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return hw->phy.ops.get_info(hw);
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}
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static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
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{
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return readl(hw->hw_addr + reg);
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}
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#define er32(reg) __er32(hw, E1000_##reg)
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void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val);
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#define ew32(reg, val) __ew32(hw, E1000_##reg, (val))
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#define e1e_flush() er32(STATUS)
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#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) \
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(__ew32((a), (reg + ((offset) << 2)), (value)))
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#define E1000_READ_REG_ARRAY(a, reg, offset) \
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(readl((a)->hw_addr + reg + ((offset) << 2)))
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#endif /* _E1000_H_ */
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