i40e: driver core headers (7daa6bf3) · Commits · 戴 / test

drivers/net/ethernet/intel/i40e/i40e.h

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		/*******************************************************************************
		*
		* Intel Ethernet Controller XL710 Family Linux Driver
		* Copyright(c) 2013 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
		*
		******************************************************************************/

		#ifndef _I40E_H_
		#define _I40E_H_

		#include <net/tcp.h>
		#include <linux/init.h>
		#include <linux/types.h>
		#include <linux/errno.h>
		#include <linux/module.h>
		#include <linux/pci.h>
		#include <linux/aer.h>
		#include <linux/netdevice.h>
		#include <linux/ioport.h>
		#include <linux/slab.h>
		#include <linux/list.h>
		#include <linux/string.h>
		#include <linux/in.h>
		#include <linux/ip.h>
		#include <linux/tcp.h>
		#include <linux/sctp.h>
		#include <linux/pkt_sched.h>
		#include <linux/ipv6.h>
		#include <linux/version.h>
		#include <net/checksum.h>
		#include <net/ip6_checksum.h>
		#include <linux/ethtool.h>
		#include <linux/if_vlan.h>
		#include "i40e_type.h"
		#include "i40e_prototype.h"
		#include "i40e_virtchnl.h"
		#include "i40e_virtchnl_pf.h"
		#include "i40e_txrx.h"

		/* Useful i40e defaults */
		#define I40E_BASE_PF_SEID 16
		#define I40E_BASE_VSI_SEID 512
		#define I40E_BASE_VEB_SEID 288
		#define I40E_MAX_VEB 16

		#define I40E_MAX_NUM_DESCRIPTORS 4096
		#define I40E_MAX_REGISTER 0x0038FFFF
		#define I40E_DEFAULT_NUM_DESCRIPTORS 512
		#define I40E_REQ_DESCRIPTOR_MULTIPLE 32
		#define I40E_MIN_NUM_DESCRIPTORS 64
		#define I40E_MIN_MSIX 2
		#define I40E_DEFAULT_NUM_VMDQ_VSI 8 /* max 256 VSIs */
		#define I40E_DEFAULT_QUEUES_PER_VMDQ 2 /* max 16 qps */
		#define I40E_DEFAULT_QUEUES_PER_VF 4
		#define I40E_DEFAULT_QUEUES_PER_TC 1 /* should be a power of 2 */
		#define I40E_FDIR_RING 0
		#define I40E_FDIR_RING_COUNT 32
		#define I40E_MAX_AQ_BUF_SIZE 4096
		#define I40E_AQ_LEN 32
		#define I40E_AQ_WORK_LIMIT 16
		#define I40E_MAX_USER_PRIORITY 8
		#define I40E_DEFAULT_MSG_ENABLE 4

		#define I40E_NVM_VERSION_LO_SHIFT 0
		#define I40E_NVM_VERSION_LO_MASK (0xf << I40E_NVM_VERSION_LO_SHIFT)
		#define I40E_NVM_VERSION_MID_SHIFT 4
		#define I40E_NVM_VERSION_MID_MASK (0xff << I40E_NVM_VERSION_MID_SHIFT)
		#define I40E_NVM_VERSION_HI_SHIFT 12
		#define I40E_NVM_VERSION_HI_MASK (0xf << I40E_NVM_VERSION_HI_SHIFT)

		/* magic for getting defines into strings */
		#define STRINGIFY(foo) #foo
		#define XSTRINGIFY(bar) STRINGIFY(bar)

		#ifndef ARCH_HAS_PREFETCH
		#define prefetch(X)
		#endif

		#define I40E_RX_DESC(R, i) \
		((ring_is_16byte_desc_enabled(R)) \
		? (union i40e_32byte_rx_desc *) \
		(&(((union i40e_16byte_rx_desc *)((R)->desc))[i])) \
		: (&(((union i40e_32byte_rx_desc *)((R)->desc))[i])))
		#define I40E_TX_DESC(R, i) \
		(&(((struct i40e_tx_desc *)((R)->desc))[i]))
		#define I40E_TX_CTXTDESC(R, i) \
		(&(((struct i40e_tx_context_desc *)((R)->desc))[i]))
		#define I40E_TX_FDIRDESC(R, i) \
		(&(((struct i40e_filter_program_desc *)((R)->desc))[i]))

		/* default to trying for four seconds */
		#define I40E_TRY_LINK_TIMEOUT (4 * HZ)

		/* driver state flags */
		enum i40e_state_t {
		__I40E_TESTING,
		__I40E_CONFIG_BUSY,
		__I40E_CONFIG_DONE,
		__I40E_DOWN,
		__I40E_NEEDS_RESTART,
		__I40E_SERVICE_SCHED,
		__I40E_ADMINQ_EVENT_PENDING,
		__I40E_MDD_EVENT_PENDING,
		__I40E_VFLR_EVENT_PENDING,
		__I40E_RESET_RECOVERY_PENDING,
		__I40E_RESET_INTR_RECEIVED,
		__I40E_REINIT_REQUESTED,
		__I40E_PF_RESET_REQUESTED,
		__I40E_CORE_RESET_REQUESTED,
		__I40E_GLOBAL_RESET_REQUESTED,
		__I40E_FILTER_OVERFLOW_PROMISC,
		};

		enum i40e_interrupt_policy {
		I40E_INTERRUPT_BEST_CASE,
		I40E_INTERRUPT_MEDIUM,
		I40E_INTERRUPT_LOWEST
		};

		struct i40e_lump_tracking {
		u16 num_entries;
		u16 search_hint;
		u16 list[0];
		#define I40E_PILE_VALID_BIT 0x8000
		};

		#define I40E_DEFAULT_ATR_SAMPLE_RATE 20
		#define I40E_FDIR_MAX_RAW_PACKET_LOOKUP 512
		struct i40e_fdir_data {
		u16 q_index;
		u8 flex_off;
		u8 pctype;
		u16 dest_vsi;
		u8 dest_ctl;
		u8 fd_status;
		u16 cnt_index;
		u32 fd_id;
		u8 *raw_packet;
		};

		#define I40E_DCB_PRIO_TYPE_STRICT 0
		#define I40E_DCB_PRIO_TYPE_ETS 1
		#define I40E_DCB_STRICT_PRIO_CREDITS 127
		#define I40E_MAX_USER_PRIORITY 8
		/* DCB per TC information data structure */
		struct i40e_tc_info {
		u16 qoffset; /* Queue offset from base queue */
		u16 qcount; /* Total Queues */
		u8 netdev_tc; /* Netdev TC index if netdev associated */
		};

		/* TC configuration data structure */
		struct i40e_tc_configuration {
		u8 numtc; /* Total number of enabled TCs */
		u8 enabled_tc; /* TC map */
		struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
		};

		/* struct that defines the Ethernet device */
		struct i40e_pf {
		struct pci_dev *pdev;
		struct i40e_hw hw;
		unsigned long state;
		unsigned long link_check_timeout;
		struct msix_entry *msix_entries;
		u16 num_msix_entries;
		bool fc_autoneg_status;

		u16 eeprom_version;
		u16 num_vmdq_vsis; /* num vmdq pools this pf has set up */
		u16 num_vmdq_qps; /* num queue pairs per vmdq pool */
		u16 num_vmdq_msix; /* num queue vectors per vmdq pool */
		u16 num_req_vfs; /* num vfs requested for this vf */
		u16 num_vf_qps; /* num queue pairs per vf */
		u16 num_tc_qps; /* num queue pairs per TC */
		u16 num_lan_qps; /* num lan queues this pf has set up */
		u16 num_lan_msix; /* num queue vectors for the base pf vsi */
		u16 rss_size; /* num queues in the RSS array */
		u16 rss_size_max; /* HW defined max RSS queues */
		u16 fdir_pf_filter_count; /* num of guaranteed filters for this PF */
		u8 atr_sample_rate;

		enum i40e_interrupt_policy int_policy;
		u16 rx_itr_default;
		u16 tx_itr_default;
		u16 msg_enable;
		char misc_int_name[IFNAMSIZ + 9];
		u16 adminq_work_limit; /* num of admin receive queue desc to process */
		int service_timer_period;
		struct timer_list service_timer;
		struct work_struct service_task;

		u64 flags;
		#define I40E_FLAG_RX_CSUM_ENABLED (u64)(1 << 1)
		#define I40E_FLAG_MSI_ENABLED (u64)(1 << 2)
		#define I40E_FLAG_MSIX_ENABLED (u64)(1 << 3)
		#define I40E_FLAG_RX_1BUF_ENABLED (u64)(1 << 4)
		#define I40E_FLAG_RX_PS_ENABLED (u64)(1 << 5)
		#define I40E_FLAG_RSS_ENABLED (u64)(1 << 6)
		#define I40E_FLAG_MQ_ENABLED (u64)(1 << 7)
		#define I40E_FLAG_VMDQ_ENABLED (u64)(1 << 8)
		#define I40E_FLAG_FDIR_REQUIRES_REINIT (u64)(1 << 9)
		#define I40E_FLAG_NEED_LINK_UPDATE (u64)(1 << 10)
		#define I40E_FLAG_IN_NETPOLL (u64)(1 << 13)
		#define I40E_FLAG_16BYTE_RX_DESC_ENABLED (u64)(1 << 14)
		#define I40E_FLAG_CLEAN_ADMINQ (u64)(1 << 15)
		#define I40E_FLAG_FILTER_SYNC (u64)(1 << 16)
		#define I40E_FLAG_PROCESS_MDD_EVENT (u64)(1 << 18)
		#define I40E_FLAG_PROCESS_VFLR_EVENT (u64)(1 << 19)
		#define I40E_FLAG_SRIOV_ENABLED (u64)(1 << 20)
		#define I40E_FLAG_DCB_ENABLED (u64)(1 << 21)
		#define I40E_FLAG_FDIR_ENABLED (u64)(1 << 22)
		#define I40E_FLAG_FDIR_ATR_ENABLED (u64)(1 << 23)
		#define I40E_FLAG_MFP_ENABLED (u64)(1 << 27)

		u16 num_tx_queues;
		u16 num_rx_queues;

		bool stat_offsets_loaded;
		struct i40e_hw_port_stats stats;
		struct i40e_hw_port_stats stats_offsets;
		u32 tx_timeout_count;
		u32 tx_timeout_recovery_level;
		unsigned long tx_timeout_last_recovery;
		u32 hw_csum_rx_error;
		u32 led_status;
		u16 corer_count; /* Core reset count */
		u16 globr_count; /* Global reset count */
		u16 empr_count; /* EMP reset count */
		u16 pfr_count; /* PF reset count */

		struct mutex switch_mutex;
		u16 lan_vsi; /* our default LAN VSI */
		u16 lan_veb; /* initial relay, if exists */
		#define I40E_NO_VEB 0xffff
		#define I40E_NO_VSI 0xffff
		u16 next_vsi; /* Next unallocated VSI - 0-based! */
		struct i40e_vsi **vsi;
		struct i40e_veb *veb[I40E_MAX_VEB];

		struct i40e_lump_tracking *qp_pile;
		struct i40e_lump_tracking *irq_pile;

		/* switch config info */
		u16 pf_seid;
		u16 main_vsi_seid;
		u16 mac_seid;
		struct i40e_aqc_get_switch_config_data *sw_config;
		struct kobject *switch_kobj;
		#ifdef CONFIG_DEBUG_FS
		struct dentry *i40e_dbg_pf;
		#endif /* CONFIG_DEBUG_FS */

		/* sr-iov config info */
		struct i40e_vf *vf;
		int num_alloc_vfs; /* actual number of VFs allocated */
		u32 vf_aq_requests;

		/* DCBx/DCBNL capability for PF that indicates
		* whether DCBx is managed by firmware or host
		* based agent (LLDPAD). Also, indicates what
		* flavor of DCBx protocol (IEEE/CEE) is supported
		* by the device. For now we're supporting IEEE
		* mode only.
		*/
		u16 dcbx_cap;

		u32 fcoe_hmc_filt_num;
		u32 fcoe_hmc_cntx_num;
		struct i40e_filter_control_settings filter_settings;
		};

		struct i40e_mac_filter {
		struct list_head list;
		u8 macaddr[ETH_ALEN];
		#define I40E_VLAN_ANY -1
		s16 vlan;
		u8 counter; /* number of instances of this filter */
		bool is_vf; /* filter belongs to a VF */
		bool is_netdev; /* filter belongs to a netdev */
		bool changed; /* filter needs to be sync'd to the HW */
		};

		struct i40e_veb {
		struct i40e_pf *pf;
		u16 idx;
		u16 veb_idx; /* index of VEB parent */
		u16 seid;
		u16 uplink_seid;
		u16 stats_idx; /* index of VEB parent */
		u8 enabled_tc;
		u16 flags;
		u16 bw_limit;
		u8 bw_max_quanta;
		bool is_abs_credits;
		u8 bw_tc_share_credits[I40E_MAX_TRAFFIC_CLASS];
		u16 bw_tc_limit_credits[I40E_MAX_TRAFFIC_CLASS];
		u8 bw_tc_max_quanta[I40E_MAX_TRAFFIC_CLASS];
		struct kobject *kobj;
		bool stat_offsets_loaded;
		struct i40e_eth_stats stats;
		struct i40e_eth_stats stats_offsets;
		};

		/* struct that defines a VSI, associated with a dev */
		struct i40e_vsi {
		struct net_device *netdev;
		unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
		bool netdev_registered;
		bool stat_offsets_loaded;

		u32 current_netdev_flags;
		unsigned long state;
		#define I40E_VSI_FLAG_FILTER_CHANGED (1<<0)
		#define I40E_VSI_FLAG_VEB_OWNER (1<<1)
		unsigned long flags;

		struct list_head mac_filter_list;

		/* VSI stats */
		struct rtnl_link_stats64 net_stats;
		struct rtnl_link_stats64 net_stats_offsets;
		struct i40e_eth_stats eth_stats;
		struct i40e_eth_stats eth_stats_offsets;
		u32 tx_restart;
		u32 tx_busy;
		u32 rx_buf_failed;
		u32 rx_page_failed;

		/* These are arrays of rings, allocated at run-time */
		struct i40e_ring *rx_rings;
		struct i40e_ring *tx_rings;

		u16 work_limit;
		/* high bit set means dynamic, use accessor routines to read/write.
		* hardware only supports 2us resolution for the ITR registers.
		* these values always store the USER setting, and must be converted
		* before programming to a register.
		*/
		u16 rx_itr_setting;
		u16 tx_itr_setting;

		u16 max_frame;
		u16 rx_hdr_len;
		u16 rx_buf_len;
		u8 dtype;

		/* List of q_vectors allocated to this VSI */
		struct i40e_q_vector *q_vectors;
		int num_q_vectors;
		int base_vector;

		u16 seid; /* HW index of this VSI (absolute index) */
		u16 id; /* VSI number */
		u16 uplink_seid;

		u16 base_queue; /* vsi's first queue in hw array */
		u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */
		u16 num_queue_pairs; /* Used tx and rx pairs */
		u16 num_desc;
		enum i40e_vsi_type type; /* VSI type, e.g., LAN, FCoE, etc */
		u16 vf_id; /* Virtual function ID for SRIOV VSIs */

		struct i40e_tc_configuration tc_config;
		struct i40e_aqc_vsi_properties_data info;

		/* VSI BW limit (absolute across all TCs) */
		u16 bw_limit; /* VSI BW Limit (0 = disabled) */
		u8 bw_max_quanta; /* Max Quanta when BW limit is enabled */

		/* Relative TC credits across VSIs */
		u8 bw_ets_share_credits[I40E_MAX_TRAFFIC_CLASS];
		/* TC BW limit credits within VSI */
		u16 bw_ets_limit_credits[I40E_MAX_TRAFFIC_CLASS];
		/* TC BW limit max quanta within VSI */
		u8 bw_ets_max_quanta[I40E_MAX_TRAFFIC_CLASS];

		struct i40e_pf back; / Backreference to associated PF */
		u16 idx; /* index in pf->vsi[] */
		u16 veb_idx; /* index of VEB parent */
		struct kobject kobj; / sysfs object */

		/* VSI specific handlers */
		irqreturn_t (irq_handler)(int irq, void data);
		} ____cacheline_internodealigned_in_smp;

		struct i40e_netdev_priv {
		struct i40e_vsi *vsi;
		};

		/* struct that defines an interrupt vector */
		struct i40e_q_vector {
		struct i40e_vsi *vsi;

		u16 v_idx; /* index in the vsi->q_vector array. */
		u16 reg_idx; /* register index of the interrupt */

		struct napi_struct napi;

		struct i40e_ring_container rx;
		struct i40e_ring_container tx;

		u8 num_ringpairs; /* total number of ring pairs in vector */

		char name[IFNAMSIZ + 9];
		cpumask_t affinity_mask;
		} ____cacheline_internodealigned_in_smp;

		/* lan device */
		struct i40e_device {
		struct list_head list;
		struct i40e_pf *pf;
		};

		/**
		* i40e_fw_version_str - format the FW and NVM version strings
		* @hw: ptr to the hardware info
		**/
		static inline char i40e_fw_version_str(struct i40e_hw hw)
		{
		static char buf[32];

		snprintf(buf, sizeof(buf),
		"f%d.%d a%d.%d n%02d.%02d.%02d e%08x",
		hw->aq.fw_maj_ver, hw->aq.fw_min_ver,
		hw->aq.api_maj_ver, hw->aq.api_min_ver,
		(hw->nvm.version & I40E_NVM_VERSION_HI_MASK)
		>> I40E_NVM_VERSION_HI_SHIFT,
		(hw->nvm.version & I40E_NVM_VERSION_MID_MASK)
		>> I40E_NVM_VERSION_MID_SHIFT,
		(hw->nvm.version & I40E_NVM_VERSION_LO_MASK)
		>> I40E_NVM_VERSION_LO_SHIFT,
		hw->nvm.eetrack);

		return buf;
		}

		/**
		* i40e_netdev_to_pf: Retrieve the PF struct for given netdev
		* @netdev: the corresponding netdev
		*
		* Return the PF struct for the given netdev
		**/
		static inline struct i40e_pf i40e_netdev_to_pf(struct net_device netdev)
		{
		struct i40e_netdev_priv *np = netdev_priv(netdev);
		struct i40e_vsi *vsi = np->vsi;

		return vsi->back;
		}

		static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi,
		irqreturn_t (irq_handler)(int, void ))
		{
		vsi->irq_handler = irq_handler;
		}

		/**
		* i40e_rx_is_programming_status - check for programming status descriptor
		* @qw: the first quad word of the program status descriptor
		*
		* The value of in the descriptor length field indicate if this
		* is a programming status descriptor for flow director or FCoE
		* by the value of I40E_RX_PROG_STATUS_DESC_LENGTH, otherwise
		* it is a packet descriptor.
		**/
		static inline bool i40e_rx_is_programming_status(u64 qw)
		{
		return I40E_RX_PROG_STATUS_DESC_LENGTH ==
		(qw >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT);
		}

		/* needed by i40e_ethtool.c */
		int i40e_up(struct i40e_vsi *vsi);
		void i40e_down(struct i40e_vsi *vsi);
		extern const char i40e_driver_name[];
		extern const char i40e_driver_version_str[];
		void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags);
		void i40e_update_stats(struct i40e_vsi *vsi);
		void i40e_update_eth_stats(struct i40e_vsi *vsi);
		struct rtnl_link_stats64 i40e_get_vsi_stats_struct(struct i40e_vsi vsi);
		int i40e_fetch_switch_configuration(struct i40e_pf *pf,
		bool printconfig);

		/* needed by i40e_main.c */
		void i40e_add_fdir_filter(struct i40e_fdir_data fdir_data,
		struct i40e_ring *tx_ring);
		void i40e_add_remove_filter(struct i40e_fdir_data fdir_data,
		struct i40e_ring *tx_ring);
		void i40e_update_fdir_filter(struct i40e_fdir_data fdir_data,
		struct i40e_ring *tx_ring);
		int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
		struct i40e_pf *pf, bool add);

		void i40e_set_ethtool_ops(struct net_device *netdev);
		struct i40e_mac_filter i40e_add_filter(struct i40e_vsi vsi,
		u8 *macaddr, s16 vlan,
		bool is_vf, bool is_netdev);
		void i40e_del_filter(struct i40e_vsi vsi, u8 macaddr, s16 vlan,
		bool is_vf, bool is_netdev);
		int i40e_sync_vsi_filters(struct i40e_vsi *vsi);
		struct i40e_vsi i40e_vsi_setup(struct i40e_pf pf, u8 type,
		u16 uplink, u32 param1);
		int i40e_vsi_release(struct i40e_vsi *vsi);
		struct i40e_vsi i40e_vsi_lookup(struct i40e_pf pf, enum i40e_vsi_type type,
		struct i40e_vsi *start_vsi);
		struct i40e_veb i40e_veb_setup(struct i40e_pf pf, u16 flags, u16 uplink_seid,
		u16 downlink_seid, u8 enabled_tc);
		void i40e_veb_release(struct i40e_veb *veb);

		i40e_status i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid);
		void i40e_vsi_remove_pvid(struct i40e_vsi *vsi);
		void i40e_vsi_reset_stats(struct i40e_vsi *vsi);
		void i40e_pf_reset_stats(struct i40e_pf *pf);
		#ifdef CONFIG_DEBUG_FS
		void i40e_dbg_pf_init(struct i40e_pf *pf);
		void i40e_dbg_pf_exit(struct i40e_pf *pf);
		void i40e_dbg_init(void);
		void i40e_dbg_exit(void);
		#else
		static inline void i40e_dbg_pf_init(struct i40e_pf *pf) {}
		static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
		static inline void i40e_dbg_init(void) {}
		static inline void i40e_dbg_exit(void) {}
		#endif /* CONFIG_DEBUG_FS*/
		void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector);
		int i40e_ioctl(struct net_device netdev, struct ifreq ifr, int cmd);
		void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
		int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
		int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid);
		struct i40e_mac_filter i40e_put_mac_in_vlan(struct i40e_vsi vsi, u8 *macaddr,
		bool is_vf, bool is_netdev);
		bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
		struct i40e_mac_filter i40e_find_mac(struct i40e_vsi vsi, u8 *macaddr,
		bool is_vf, bool is_netdev);
		void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);

		#endif /* _I40E_H_ */

drivers/net/ethernet/intel/i40e/i40e_osdep.h

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Original line number	Diff line number	Diff line
		/*******************************************************************************
		*
		* Intel Ethernet Controller XL710 Family Linux Driver
		* Copyright(c) 2013 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
		*
		******************************************************************************/

		#ifndef _I40E_OSDEP_H_
		#define _I40E_OSDEP_H_

		#include <linux/types.h>
		#include <linux/if_ether.h>
		#include <linux/if_vlan.h>
		#include <linux/tcp.h>
		#include <linux/pci.h>
		#include <linux/highuid.h>

		/* get readq/writeq support for 32 bit kernels, use the low-first version */
		#include <asm-generic/io-64-nonatomic-lo-hi.h>

		/* File to be the magic between shared code and
		* actual OS primitives
		*/

		#define hw_dbg(hw, S, A...) do {} while (0)

		#define wr32(a, reg, value) writel((value), ((a)->hw_addr + (reg)))
		#define rd32(a, reg) readl((a)->hw_addr + (reg))

		#define wr64(a, reg, value) writeq((value), ((a)->hw_addr + (reg)))
		#define rd64(a, reg) readq((a)->hw_addr + (reg))
		#define i40e_flush(a) readl((a)->hw_addr + I40E_GLGEN_STAT)

		/* memory allocation tracking */
		struct i40e_dma_mem {
		void *va;
		dma_addr_t pa;
		u32 size;
		} __packed;

		#define i40e_allocate_dma_mem(h, m, unused, s, a) \
		i40e_allocate_dma_mem_d(h, m, s, a)
		#define i40e_free_dma_mem(h, m) i40e_free_dma_mem_d(h, m)

		struct i40e_virt_mem {
		void *va;
		u32 size;
		} __packed;

		#define i40e_allocate_virt_mem(h, m, s) i40e_allocate_virt_mem_d(h, m, s)
		#define i40e_free_virt_mem(h, m) i40e_free_virt_mem_d(h, m)

		#define i40e_debug(h, m, s, ...) \
		do { \
		if (((m) & (h)->debug_mask)) \
		pr_info("i40e %02x.%x " s, \
		(h)->bus.device, (h)->bus.func, \
		##__VA_ARGS__); \
		} while (0)

		typedef enum i40e_status_code i40e_status;
		#endif /* _I40E_OSDEP_H_ */

drivers/net/ethernet/intel/i40e/i40e_txrx.h

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