drivers/net/e1000/e1000.h - kernel/msm-4.9 - Gitiles

 /*******************************************************************************


   Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.

   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the Free
   Software Foundation; either version 2 of the License, or (at your option)
   any later version.

   This program is distributed in the hope that 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., 59
   Temple Place - Suite 330, Boston, MA  02111-1307, USA.

   The full GNU General Public License is included in this distribution in the
   file called LICENSE.

   Contact Information:
   Linux NICS <linux.nics@intel.com>
   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

 *******************************************************************************/


 /* Linux PRO/1000 Ethernet Driver main header file */

 #ifndef _E1000_H_
 #define _E1000_H_

 #include <linux/stddef.h>
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <asm/byteorder.h>
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/ioport.h>
 #include <linux/pci.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
 #include <linux/delay.h>
 #include <linux/timer.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/interrupt.h>
 #include <linux/string.h>
 #include <linux/pagemap.h>
 #include <linux/dma-mapping.h>
 #include <linux/bitops.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <linux/capability.h>
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/udp.h>
 #include <net/pkt_sched.h>
 #include <linux/list.h>
 #include <linux/reboot.h>
 #ifdef NETIF_F_TSO
 #include <net/checksum.h>
 #endif
 #include <linux/workqueue.h>
 #include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
 #ifdef CONFIG_E1000_MQ
 #include <linux/cpu.h>
 #include <linux/smp.h>
 #endif

 #define BAR_0		0
 #define BAR_1		1
 #define BAR_5		5

 #define INTEL_E1000_ETHERNET_DEVICE(device_id) {\
 	PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}

 struct e1000_adapter;

 #include "e1000_hw.h"

 #ifdef DBG
 #define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args)
 #else
 #define E1000_DBG(args...)
 #endif

 #define E1000_ERR(args...) printk(KERN_ERR "e1000: " args)

 #define PFX "e1000: "
 #define DPRINTK(nlevel, klevel, fmt, args...) \
 	(void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \
 	printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \
 		__FUNCTION__ , ## args))

 #define E1000_MAX_INTR 10

 /* TX/RX descriptor defines */
 #define E1000_DEFAULT_TXD                  256
 #define E1000_MAX_TXD                      256
 #define E1000_MIN_TXD                       80
 #define E1000_MAX_82544_TXD               4096

 #define E1000_DEFAULT_RXD                  256
 #define E1000_MAX_RXD                      256
 #define E1000_MIN_RXD                       80
 #define E1000_MAX_82544_RXD               4096

 /* Supported Rx Buffer Sizes */
 #define E1000_RXBUFFER_128   128    /* Used for packet split */
 #define E1000_RXBUFFER_256   256    /* Used for packet split */
 #define E1000_RXBUFFER_2048  2048
 #define E1000_RXBUFFER_4096  4096
 #define E1000_RXBUFFER_8192  8192
 #define E1000_RXBUFFER_16384 16384

 /* SmartSpeed delimiters */
 #define E1000_SMARTSPEED_DOWNSHIFT 3
 #define E1000_SMARTSPEED_MAX       15

 /* Packet Buffer allocations */
 #define E1000_PBA_BYTES_SHIFT 0xA
 #define E1000_TX_HEAD_ADDR_SHIFT 7
 #define E1000_PBA_TX_MASK 0xFFFF0000

 /* Flow Control Watermarks */
 #define E1000_FC_HIGH_DIFF 0x1638  /* High: 5688 bytes below Rx FIFO size */
 #define E1000_FC_LOW_DIFF 0x1640   /* Low:  5696 bytes below Rx FIFO size */

 #define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */

 /* How many Tx Descriptors do we need to call netif_wake_queue ? */
 #define E1000_TX_QUEUE_WAKE	16
 /* How many Rx Buffers do we bundle into one write to the hardware ? */
 #define E1000_RX_BUFFER_WRITE	16	/* Must be power of 2 */

 #define AUTO_ALL_MODES            0
 #define E1000_EEPROM_82544_APM    0x0004
 #define E1000_EEPROM_APME         0x0400

 #ifndef E1000_MASTER_SLAVE
 /* Switch to override PHY master/slave setting */
 #define E1000_MASTER_SLAVE	e1000_ms_hw_default
 #endif

 #define E1000_MNG_VLAN_NONE -1
 /* Number of packet split data buffers (not including the header buffer) */
 #define PS_PAGE_BUFFERS MAX_PS_BUFFERS-1

 /* only works for sizes that are powers of 2 */
 #define E1000_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1)))

 /* wrapper around a pointer to a socket buffer,
  * so a DMA handle can be stored along with the buffer */
 struct e1000_buffer {
 	struct sk_buff *skb;
 	dma_addr_t dma;
 	unsigned long time_stamp;
 	uint16_t length;
 	uint16_t next_to_watch;
 };

 struct e1000_ps_page { struct page *ps_page[PS_PAGE_BUFFERS]; };
 struct e1000_ps_page_dma { uint64_t ps_page_dma[PS_PAGE_BUFFERS]; };

 struct e1000_tx_ring {
 	/* pointer to the descriptor ring memory */
 	void *desc;
 	/* physical address of the descriptor ring */
 	dma_addr_t dma;
 	/* length of descriptor ring in bytes */
 	unsigned int size;
 	/* number of descriptors in the ring */
 	unsigned int count;
 	/* next descriptor to associate a buffer with */
 	unsigned int next_to_use;
 	/* next descriptor to check for DD status bit */
 	unsigned int next_to_clean;
 	/* array of buffer information structs */
 	struct e1000_buffer *buffer_info;

 	struct e1000_buffer previous_buffer_info;
 	spinlock_t tx_lock;
 	uint16_t tdh;
 	uint16_t tdt;
 	uint64_t pkt;
 };

 struct e1000_rx_ring {
 	/* pointer to the descriptor ring memory */
 	void *desc;
 	/* physical address of the descriptor ring */
 	dma_addr_t dma;
 	/* length of descriptor ring in bytes */
 	unsigned int size;
 	/* number of descriptors in the ring */
 	unsigned int count;
 	/* next descriptor to associate a buffer with */
 	unsigned int next_to_use;
 	/* next descriptor to check for DD status bit */
 	unsigned int next_to_clean;
 	/* array of buffer information structs */
 	struct e1000_buffer *buffer_info;
 	/* arrays of page information for packet split */
 	struct e1000_ps_page *ps_page;
 	struct e1000_ps_page_dma *ps_page_dma;

 	uint16_t rdh;
 	uint16_t rdt;
 	uint64_t pkt;
 };

 #define E1000_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_PS(R, i)	    \
 	(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
 #define E1000_RX_DESC_EXT(R, i)	    \
 	(&(((union e1000_rx_desc_extended *)((R).desc))[i]))
 #define E1000_GET_DESC(R, i, type)	(&(((struct type *)((R).desc))[i]))
 #define E1000_RX_DESC(R, i)		E1000_GET_DESC(R, i, e1000_rx_desc)
 #define E1000_TX_DESC(R, i)		E1000_GET_DESC(R, i, e1000_tx_desc)
 #define E1000_CONTEXT_DESC(R, i)	E1000_GET_DESC(R, i, e1000_context_desc)

 /* board specific private data structure */

 struct e1000_adapter {
 	struct timer_list tx_fifo_stall_timer;
 	struct timer_list watchdog_timer;
 	struct timer_list phy_info_timer;
 	struct vlan_group *vlgrp;
     	uint16_t mng_vlan_id;
 	uint32_t bd_number;
 	uint32_t rx_buffer_len;
 	uint32_t part_num;
 	uint32_t wol;
 	uint32_t smartspeed;
 	uint32_t en_mng_pt;
 	uint16_t link_speed;
 	uint16_t link_duplex;
 	spinlock_t stats_lock;
 	atomic_t irq_sem;
 	struct work_struct tx_timeout_task;
 	struct work_struct watchdog_task;
 	uint8_t fc_autoneg;

 	struct timer_list blink_timer;
 	unsigned long led_status;

 	/* TX */
 	struct e1000_tx_ring *tx_ring;      /* One per active queue */
 #ifdef CONFIG_E1000_MQ
 	struct e1000_tx_ring **cpu_tx_ring; /* per-cpu */
 #endif
 	uint32_t txd_cmd;
 	uint32_t tx_int_delay;
 	uint32_t tx_abs_int_delay;
 	uint32_t gotcl;
 	uint64_t gotcl_old;
 	uint64_t tpt_old;
 	uint64_t colc_old;
 	uint32_t tx_fifo_head;
 	uint32_t tx_head_addr;
 	uint32_t tx_fifo_size;
 	atomic_t tx_fifo_stall;
 	boolean_t pcix_82544;
 	boolean_t detect_tx_hung;

 	/* RX */
 #ifdef CONFIG_E1000_NAPI
 	boolean_t (*clean_rx) (struct e1000_adapter *adapter,
 			       struct e1000_rx_ring *rx_ring,
 			       int *work_done, int work_to_do);
 #else
 	boolean_t (*clean_rx) (struct e1000_adapter *adapter,
 			       struct e1000_rx_ring *rx_ring);
 #endif
 	void (*alloc_rx_buf) (struct e1000_adapter *adapter,
 			      struct e1000_rx_ring *rx_ring);
 	struct e1000_rx_ring *rx_ring;      /* One per active queue */
 #ifdef CONFIG_E1000_NAPI
 	struct net_device *polling_netdev;  /* One per active queue */
 #endif
 #ifdef CONFIG_E1000_MQ
 	struct net_device **cpu_netdev;     /* per-cpu */
 	struct call_async_data_struct rx_sched_call_data;
 	int cpu_for_queue[4];
 #endif
 	int num_queues;

 	uint64_t hw_csum_err;
 	uint64_t hw_csum_good;
 	uint64_t rx_hdr_split;
 	uint32_t rx_int_delay;
 	uint32_t rx_abs_int_delay;
 	boolean_t rx_csum;
 	unsigned int rx_ps_pages;
 	uint32_t gorcl;
 	uint64_t gorcl_old;
 	uint16_t rx_ps_bsize0;

 	/* Interrupt Throttle Rate */
 	uint32_t itr;

 	/* OS defined structs */
 	struct net_device *netdev;
 	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;

 	uint32_t test_icr;
 	struct e1000_tx_ring test_tx_ring;
 	struct e1000_rx_ring test_rx_ring;


 	int msg_enable;
 #ifdef CONFIG_PCI_MSI
 	boolean_t have_msi;
 #endif
 };
 #endif /* _E1000_H_ */
	/*******************************************************************************


	Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.

	This program is free software; you can redistribute it and/or modify it
	under the terms of the GNU General Public License as published by the Free
	Software Foundation; either version 2 of the License, or (at your option)
	any later version.

	This program is distributed in the hope that 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., 59
	Temple Place - Suite 330, Boston, MA 02111-1307, USA.

	The full GNU General Public License is included in this distribution in the
	file called LICENSE.

	Contact Information:
	Linux NICS <linux.nics@intel.com>
	Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

	*******************************************************************************/


	/* Linux PRO/1000 Ethernet Driver main header file */

	#ifndef _E1000_H_
	#define _E1000_H_

	#include <linux/stddef.h>
	#include <linux/config.h>
	#include <linux/module.h>
	#include <linux/types.h>
	#include <asm/byteorder.h>
	#include <linux/init.h>
	#include <linux/mm.h>
	#include <linux/errno.h>
	#include <linux/ioport.h>
	#include <linux/pci.h>
	#include <linux/kernel.h>
	#include <linux/netdevice.h>
	#include <linux/etherdevice.h>
	#include <linux/skbuff.h>
	#include <linux/delay.h>
	#include <linux/timer.h>
	#include <linux/slab.h>
	#include <linux/vmalloc.h>
	#include <linux/interrupt.h>
	#include <linux/string.h>
	#include <linux/pagemap.h>
	#include <linux/dma-mapping.h>
	#include <linux/bitops.h>
	#include <asm/io.h>
	#include <asm/irq.h>
	#include <linux/capability.h>
	#include <linux/in.h>
	#include <linux/ip.h>
	#include <linux/tcp.h>
	#include <linux/udp.h>
	#include <net/pkt_sched.h>
	#include <linux/list.h>
	#include <linux/reboot.h>
	#ifdef NETIF_F_TSO
	#include <net/checksum.h>
	#endif
	#include <linux/workqueue.h>
	#include <linux/mii.h>
	#include <linux/ethtool.h>
	#include <linux/if_vlan.h>
	#ifdef CONFIG_E1000_MQ
	#include <linux/cpu.h>
	#include <linux/smp.h>
	#endif

	#define BAR_0 0
	#define BAR_1 1
	#define BAR_5 5

	#define INTEL_E1000_ETHERNET_DEVICE(device_id) {\
	PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}

	struct e1000_adapter;

	#include "e1000_hw.h"

	#ifdef DBG
	#define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args)
	#else
	#define E1000_DBG(args...)
	#endif

	#define E1000_ERR(args...) printk(KERN_ERR "e1000: " args)

	#define PFX "e1000: "
	#define DPRINTK(nlevel, klevel, fmt, args...) \
	(void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \
	printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \
	__FUNCTION__ , ## args))

	#define E1000_MAX_INTR 10

	/* TX/RX descriptor defines */
	#define E1000_DEFAULT_TXD 256
	#define E1000_MAX_TXD 256
	#define E1000_MIN_TXD 80
	#define E1000_MAX_82544_TXD 4096

	#define E1000_DEFAULT_RXD 256
	#define E1000_MAX_RXD 256
	#define E1000_MIN_RXD 80
	#define E1000_MAX_82544_RXD 4096

	/* Supported Rx Buffer Sizes */
	#define E1000_RXBUFFER_128 128 /* Used for packet split */
	#define E1000_RXBUFFER_256 256 /* Used for packet split */
	#define E1000_RXBUFFER_2048 2048
	#define E1000_RXBUFFER_4096 4096
	#define E1000_RXBUFFER_8192 8192
	#define E1000_RXBUFFER_16384 16384

	/* SmartSpeed delimiters */
	#define E1000_SMARTSPEED_DOWNSHIFT 3
	#define E1000_SMARTSPEED_MAX 15

	/* Packet Buffer allocations */
	#define E1000_PBA_BYTES_SHIFT 0xA
	#define E1000_TX_HEAD_ADDR_SHIFT 7
	#define E1000_PBA_TX_MASK 0xFFFF0000

	/* Flow Control Watermarks */
	#define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */
	#define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */

	#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */

	/* How many Tx Descriptors do we need to call netif_wake_queue ? */
	#define E1000_TX_QUEUE_WAKE 16
	/* How many Rx Buffers do we bundle into one write to the hardware ? */
	#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */

	#define AUTO_ALL_MODES 0
	#define E1000_EEPROM_82544_APM 0x0004
	#define E1000_EEPROM_APME 0x0400

	#ifndef E1000_MASTER_SLAVE
	/* Switch to override PHY master/slave setting */
	#define E1000_MASTER_SLAVE e1000_ms_hw_default
	#endif

	#define E1000_MNG_VLAN_NONE -1
	/* Number of packet split data buffers (not including the header buffer) */
	#define PS_PAGE_BUFFERS MAX_PS_BUFFERS-1

	/* only works for sizes that are powers of 2 */
	#define E1000_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1)))

	/* wrapper around a pointer to a socket buffer,
	* so a DMA handle can be stored along with the buffer */
	struct e1000_buffer {
	struct sk_buff *skb;
	dma_addr_t dma;
	unsigned long time_stamp;
	uint16_t length;
	uint16_t next_to_watch;
	};

	struct e1000_ps_page { struct page *ps_page[PS_PAGE_BUFFERS]; };
	struct e1000_ps_page_dma { uint64_t ps_page_dma[PS_PAGE_BUFFERS]; };

	struct e1000_tx_ring {
	/* pointer to the descriptor ring memory */
	void *desc;
	/* physical address of the descriptor ring */
	dma_addr_t dma;
	/* length of descriptor ring in bytes */
	unsigned int size;
	/* number of descriptors in the ring */
	unsigned int count;
	/* next descriptor to associate a buffer with */
	unsigned int next_to_use;
	/* next descriptor to check for DD status bit */
	unsigned int next_to_clean;
	/* array of buffer information structs */
	struct e1000_buffer *buffer_info;

	struct e1000_buffer previous_buffer_info;
	spinlock_t tx_lock;
	uint16_t tdh;
	uint16_t tdt;
	uint64_t pkt;
	};

	struct e1000_rx_ring {
	/* pointer to the descriptor ring memory */
	void *desc;
	/* physical address of the descriptor ring */
	dma_addr_t dma;
	/* length of descriptor ring in bytes */
	unsigned int size;
	/* number of descriptors in the ring */
	unsigned int count;
	/* next descriptor to associate a buffer with */
	unsigned int next_to_use;
	/* next descriptor to check for DD status bit */
	unsigned int next_to_clean;
	/* array of buffer information structs */
	struct e1000_buffer *buffer_info;
	/* arrays of page information for packet split */
	struct e1000_ps_page *ps_page;
	struct e1000_ps_page_dma *ps_page_dma;

	uint16_t rdh;
	uint16_t rdt;
	uint64_t pkt;
	};

	#define E1000_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_PS(R, i) \
	(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
	#define E1000_RX_DESC_EXT(R, i) \
	(&(((union e1000_rx_desc_extended *)((R).desc))[i]))
	#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
	#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc)
	#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
	#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc)

	/* board specific private data structure */

	struct e1000_adapter {
	struct timer_list tx_fifo_stall_timer;
	struct timer_list watchdog_timer;
	struct timer_list phy_info_timer;
	struct vlan_group *vlgrp;
	uint16_t mng_vlan_id;
	uint32_t bd_number;
	uint32_t rx_buffer_len;
	uint32_t part_num;
	uint32_t wol;
	uint32_t smartspeed;
	uint32_t en_mng_pt;
	uint16_t link_speed;
	uint16_t link_duplex;
	spinlock_t stats_lock;
	atomic_t irq_sem;
	struct work_struct tx_timeout_task;
	struct work_struct watchdog_task;
	uint8_t fc_autoneg;

	struct timer_list blink_timer;
	unsigned long led_status;

	/* TX */
	struct e1000_tx_ring tx_ring; / One per active queue */
	#ifdef CONFIG_E1000_MQ
	struct e1000_tx_ring *cpu_tx_ring; / per-cpu */
	#endif
	uint32_t txd_cmd;
	uint32_t tx_int_delay;
	uint32_t tx_abs_int_delay;
	uint32_t gotcl;
	uint64_t gotcl_old;
	uint64_t tpt_old;
	uint64_t colc_old;
	uint32_t tx_fifo_head;
	uint32_t tx_head_addr;
	uint32_t tx_fifo_size;
	atomic_t tx_fifo_stall;
	boolean_t pcix_82544;
	boolean_t detect_tx_hung;

	/* RX */
	#ifdef CONFIG_E1000_NAPI
	boolean_t (clean_rx) (struct e1000_adapter adapter,
	struct e1000_rx_ring *rx_ring,
	int *work_done, int work_to_do);
	#else
	boolean_t (clean_rx) (struct e1000_adapter adapter,
	struct e1000_rx_ring *rx_ring);
	#endif
	void (alloc_rx_buf) (struct e1000_adapter adapter,
	struct e1000_rx_ring *rx_ring);
	struct e1000_rx_ring rx_ring; / One per active queue */
	#ifdef CONFIG_E1000_NAPI
	struct net_device polling_netdev; / One per active queue */
	#endif
	#ifdef CONFIG_E1000_MQ
	struct net_device *cpu_netdev; / per-cpu */
	struct call_async_data_struct rx_sched_call_data;
	int cpu_for_queue[4];
	#endif
	int num_queues;

	uint64_t hw_csum_err;
	uint64_t hw_csum_good;
	uint64_t rx_hdr_split;
	uint32_t rx_int_delay;
	uint32_t rx_abs_int_delay;
	boolean_t rx_csum;
	unsigned int rx_ps_pages;
	uint32_t gorcl;
	uint64_t gorcl_old;
	uint16_t rx_ps_bsize0;

	/* Interrupt Throttle Rate */
	uint32_t itr;

	/* OS defined structs */
	struct net_device *netdev;
	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;

	uint32_t test_icr;
	struct e1000_tx_ring test_tx_ring;
	struct e1000_rx_ring test_rx_ring;


	int msg_enable;
	#ifdef CONFIG_PCI_MSI
	boolean_t have_msi;
	#endif
	};
	#endif /* _E1000_H_ */