mirror of https://gitee.com/openkylin/linux.git
332 lines
8.9 KiB
C
332 lines
8.9 KiB
C
/*******************************************************************************
|
|
|
|
Intel(R) Gigabit Ethernet Linux driver
|
|
Copyright(c) 2007 Intel Corporation.
|
|
|
|
This program is free software; you can redistribute it and/or modify it
|
|
under the terms and conditions of the GNU General Public License,
|
|
version 2, as published by the Free Software Foundation.
|
|
|
|
This program is distributed in the hope it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
The full GNU General Public License is included in this distribution in
|
|
the file called "COPYING".
|
|
|
|
Contact Information:
|
|
e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
|
|
Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
|
|
|
|
*******************************************************************************/
|
|
|
|
|
|
/* Linux PRO/1000 Ethernet Driver main header file */
|
|
|
|
#ifndef _IGB_H_
|
|
#define _IGB_H_
|
|
|
|
#include "e1000_mac.h"
|
|
#include "e1000_82575.h"
|
|
|
|
struct igb_adapter;
|
|
|
|
#ifdef CONFIG_IGB_LRO
|
|
#include <linux/inet_lro.h>
|
|
#define MAX_LRO_AGGR 32
|
|
#define MAX_LRO_DESCRIPTORS 8
|
|
#endif
|
|
|
|
/* Interrupt defines */
|
|
#define IGB_MAX_TX_CLEAN 72
|
|
|
|
#define IGB_MIN_DYN_ITR 3000
|
|
#define IGB_MAX_DYN_ITR 96000
|
|
|
|
/* ((1000000000ns / (6000ints/s * 1024ns)) << 2 = 648 */
|
|
#define IGB_START_ITR 648
|
|
|
|
#define IGB_DYN_ITR_PACKET_THRESHOLD 2
|
|
#define IGB_DYN_ITR_LENGTH_LOW 200
|
|
#define IGB_DYN_ITR_LENGTH_HIGH 1000
|
|
|
|
/* TX/RX descriptor defines */
|
|
#define IGB_DEFAULT_TXD 256
|
|
#define IGB_MIN_TXD 80
|
|
#define IGB_MAX_TXD 4096
|
|
|
|
#define IGB_DEFAULT_RXD 256
|
|
#define IGB_MIN_RXD 80
|
|
#define IGB_MAX_RXD 4096
|
|
|
|
#define IGB_DEFAULT_ITR 3 /* dynamic */
|
|
#define IGB_MAX_ITR_USECS 10000
|
|
#define IGB_MIN_ITR_USECS 10
|
|
|
|
/* Transmit and receive queues */
|
|
#define IGB_MAX_RX_QUEUES 4
|
|
#define IGB_MAX_TX_QUEUES 4
|
|
|
|
/* RX descriptor control thresholds.
|
|
* PTHRESH - MAC will consider prefetch if it has fewer than this number of
|
|
* descriptors available in its onboard memory.
|
|
* Setting this to 0 disables RX descriptor prefetch.
|
|
* HTHRESH - MAC will only prefetch if there are at least this many descriptors
|
|
* available in host memory.
|
|
* If PTHRESH is 0, this should also be 0.
|
|
* WTHRESH - RX descriptor writeback threshold - MAC will delay writing back
|
|
* descriptors until either it has this many to write back, or the
|
|
* ITR timer expires.
|
|
*/
|
|
#define IGB_RX_PTHRESH 16
|
|
#define IGB_RX_HTHRESH 8
|
|
#define IGB_RX_WTHRESH 1
|
|
|
|
/* this is the size past which hardware will drop packets when setting LPE=0 */
|
|
#define MAXIMUM_ETHERNET_VLAN_SIZE 1522
|
|
|
|
/* Supported Rx Buffer Sizes */
|
|
#define IGB_RXBUFFER_128 128 /* Used for packet split */
|
|
#define IGB_RXBUFFER_256 256 /* Used for packet split */
|
|
#define IGB_RXBUFFER_512 512
|
|
#define IGB_RXBUFFER_1024 1024
|
|
#define IGB_RXBUFFER_2048 2048
|
|
#define IGB_RXBUFFER_4096 4096
|
|
#define IGB_RXBUFFER_8192 8192
|
|
#define IGB_RXBUFFER_16384 16384
|
|
|
|
/* Packet Buffer allocations */
|
|
|
|
|
|
/* How many Tx Descriptors do we need to call netif_wake_queue ? */
|
|
#define IGB_TX_QUEUE_WAKE 16
|
|
/* How many Rx Buffers do we bundle into one write to the hardware ? */
|
|
#define IGB_RX_BUFFER_WRITE 16 /* Must be power of 2 */
|
|
|
|
#define AUTO_ALL_MODES 0
|
|
#define IGB_EEPROM_APME 0x0400
|
|
|
|
#ifndef IGB_MASTER_SLAVE
|
|
/* Switch to override PHY master/slave setting */
|
|
#define IGB_MASTER_SLAVE e1000_ms_hw_default
|
|
#endif
|
|
|
|
#define IGB_MNG_VLAN_NONE -1
|
|
|
|
/* wrapper around a pointer to a socket buffer,
|
|
* so a DMA handle can be stored along with the buffer */
|
|
struct igb_buffer {
|
|
struct sk_buff *skb;
|
|
dma_addr_t dma;
|
|
union {
|
|
/* TX */
|
|
struct {
|
|
unsigned long time_stamp;
|
|
u32 length;
|
|
};
|
|
/* RX */
|
|
struct {
|
|
struct page *page;
|
|
u64 page_dma;
|
|
unsigned int page_offset;
|
|
};
|
|
};
|
|
};
|
|
|
|
struct igb_queue_stats {
|
|
u64 packets;
|
|
u64 bytes;
|
|
};
|
|
|
|
struct igb_ring {
|
|
struct igb_adapter *adapter; /* backlink */
|
|
void *desc; /* descriptor ring memory */
|
|
dma_addr_t dma; /* phys address of the ring */
|
|
unsigned int size; /* length of desc. ring in bytes */
|
|
unsigned int count; /* number of desc. in the ring */
|
|
u16 next_to_use;
|
|
u16 next_to_clean;
|
|
u16 head;
|
|
u16 tail;
|
|
struct igb_buffer *buffer_info; /* array of buffer info structs */
|
|
|
|
u32 eims_value;
|
|
u32 itr_val;
|
|
u16 itr_register;
|
|
u16 cpu;
|
|
|
|
int queue_index;
|
|
unsigned int total_bytes;
|
|
unsigned int total_packets;
|
|
|
|
union {
|
|
/* TX */
|
|
struct {
|
|
struct igb_queue_stats tx_stats;
|
|
bool detect_tx_hung;
|
|
};
|
|
/* RX */
|
|
struct {
|
|
struct igb_queue_stats rx_stats;
|
|
struct napi_struct napi;
|
|
int set_itr;
|
|
struct igb_ring *buddy;
|
|
#ifdef CONFIG_IGB_LRO
|
|
struct net_lro_mgr lro_mgr;
|
|
bool lro_used;
|
|
#endif
|
|
};
|
|
};
|
|
|
|
char name[IFNAMSIZ + 5];
|
|
};
|
|
|
|
#define IGB_DESC_UNUSED(R) \
|
|
((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
|
|
(R)->next_to_clean - (R)->next_to_use - 1)
|
|
|
|
#define E1000_RX_DESC_ADV(R, i) \
|
|
(&(((union e1000_adv_rx_desc *)((R).desc))[i]))
|
|
#define E1000_TX_DESC_ADV(R, i) \
|
|
(&(((union e1000_adv_tx_desc *)((R).desc))[i]))
|
|
#define E1000_TX_CTXTDESC_ADV(R, i) \
|
|
(&(((struct e1000_adv_tx_context_desc *)((R).desc))[i]))
|
|
#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
|
|
#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
|
|
#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc)
|
|
|
|
/* board specific private data structure */
|
|
|
|
struct igb_adapter {
|
|
struct timer_list watchdog_timer;
|
|
struct timer_list phy_info_timer;
|
|
struct vlan_group *vlgrp;
|
|
u16 mng_vlan_id;
|
|
u32 bd_number;
|
|
u32 rx_buffer_len;
|
|
u32 wol;
|
|
u32 en_mng_pt;
|
|
u16 link_speed;
|
|
u16 link_duplex;
|
|
unsigned int total_tx_bytes;
|
|
unsigned int total_tx_packets;
|
|
unsigned int total_rx_bytes;
|
|
unsigned int total_rx_packets;
|
|
/* Interrupt Throttle Rate */
|
|
u32 itr;
|
|
u32 itr_setting;
|
|
u16 tx_itr;
|
|
u16 rx_itr;
|
|
|
|
struct work_struct reset_task;
|
|
struct work_struct watchdog_task;
|
|
bool fc_autoneg;
|
|
u8 tx_timeout_factor;
|
|
struct timer_list blink_timer;
|
|
unsigned long led_status;
|
|
|
|
/* TX */
|
|
struct igb_ring *tx_ring; /* One per active queue */
|
|
unsigned int restart_queue;
|
|
unsigned long tx_queue_len;
|
|
u32 txd_cmd;
|
|
u32 gotc;
|
|
u64 gotc_old;
|
|
u64 tpt_old;
|
|
u64 colc_old;
|
|
u32 tx_timeout_count;
|
|
|
|
/* RX */
|
|
struct igb_ring *rx_ring; /* One per active queue */
|
|
int num_tx_queues;
|
|
int num_rx_queues;
|
|
|
|
u64 hw_csum_err;
|
|
u64 hw_csum_good;
|
|
u64 rx_hdr_split;
|
|
u32 alloc_rx_buff_failed;
|
|
bool rx_csum;
|
|
u32 gorc;
|
|
u64 gorc_old;
|
|
u16 rx_ps_hdr_size;
|
|
u32 max_frame_size;
|
|
u32 min_frame_size;
|
|
|
|
/* OS defined structs */
|
|
struct net_device *netdev;
|
|
struct napi_struct napi;
|
|
struct pci_dev *pdev;
|
|
struct net_device_stats net_stats;
|
|
|
|
/* structs defined in e1000_hw.h */
|
|
struct e1000_hw hw;
|
|
struct e1000_hw_stats stats;
|
|
struct e1000_phy_info phy_info;
|
|
struct e1000_phy_stats phy_stats;
|
|
|
|
u32 test_icr;
|
|
struct igb_ring test_tx_ring;
|
|
struct igb_ring test_rx_ring;
|
|
|
|
int msg_enable;
|
|
struct msix_entry *msix_entries;
|
|
u32 eims_enable_mask;
|
|
u32 eims_other;
|
|
|
|
/* to not mess up cache alignment, always add to the bottom */
|
|
unsigned long state;
|
|
unsigned int flags;
|
|
u32 eeprom_wol;
|
|
|
|
/* for ioport free */
|
|
int bars;
|
|
int need_ioport;
|
|
|
|
struct igb_ring *multi_tx_table[IGB_MAX_TX_QUEUES];
|
|
#ifdef CONFIG_IGB_LRO
|
|
unsigned int lro_max_aggr;
|
|
unsigned int lro_aggregated;
|
|
unsigned int lro_flushed;
|
|
unsigned int lro_no_desc;
|
|
#endif
|
|
};
|
|
|
|
#define IGB_FLAG_HAS_MSI (1 << 0)
|
|
#define IGB_FLAG_MSI_ENABLE (1 << 1)
|
|
#define IGB_FLAG_HAS_DCA (1 << 2)
|
|
#define IGB_FLAG_DCA_ENABLED (1 << 3)
|
|
#define IGB_FLAG_IN_NETPOLL (1 << 5)
|
|
#define IGB_FLAG_QUAD_PORT_A (1 << 6)
|
|
#define IGB_FLAG_NEED_CTX_IDX (1 << 7)
|
|
|
|
enum e1000_state_t {
|
|
__IGB_TESTING,
|
|
__IGB_RESETTING,
|
|
__IGB_DOWN
|
|
};
|
|
|
|
enum igb_boards {
|
|
board_82575,
|
|
};
|
|
|
|
extern char igb_driver_name[];
|
|
extern char igb_driver_version[];
|
|
|
|
extern char *igb_get_hw_dev_name(struct e1000_hw *hw);
|
|
extern int igb_up(struct igb_adapter *);
|
|
extern void igb_down(struct igb_adapter *);
|
|
extern void igb_reinit_locked(struct igb_adapter *);
|
|
extern void igb_reset(struct igb_adapter *);
|
|
extern int igb_set_spd_dplx(struct igb_adapter *, u16);
|
|
extern int igb_setup_tx_resources(struct igb_adapter *, struct igb_ring *);
|
|
extern int igb_setup_rx_resources(struct igb_adapter *, struct igb_ring *);
|
|
extern void igb_update_stats(struct igb_adapter *);
|
|
extern void igb_set_ethtool_ops(struct net_device *);
|
|
|
|
#endif /* _IGB_H_ */
|