path: root/drivers/net/ethernet/intel/i40e/i40e.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 2013 - 2021 Intel Corporation. */

#ifndef _I40E_H_
#define _I40E_H_

#include <net/tcp.h>
#include <net/udp.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/iommu.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/hashtable.h>
#include <linux/string.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/sctp.h>
#include <linux/pkt_sched.h>
#include <linux/ipv6.h>
#include <net/checksum.h>
#include <net/ip6_checksum.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#include <linux/if_macvlan.h>
#include <linux/if_bridge.h>
#include <linux/clocksource.h>
#include <linux/net_tstamp.h>
#include <linux/ptp_clock_kernel.h>
#include <net/pkt_cls.h>
#include <net/tc_act/tc_gact.h>
#include <net/tc_act/tc_mirred.h>
#include <net/udp_tunnel.h>
#include <net/xdp_sock.h>
#include "i40e_type.h"
#include "i40e_prototype.h"
#include <linux/net/intel/i40e_client.h>
#include <linux/avf/virtchnl.h>
#include "i40e_virtchnl_pf.h"
#include "i40e_txrx.h"
#include "i40e_dcb.h"

/* Useful i40e defaults */
#define I40E_MAX_VEB			16

#define I40E_MAX_NUM_DESCRIPTORS	4096
#define I40E_MAX_CSR_SPACE		(4 * 1024 * 1024 - 64 * 1024)
#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_MIN_VSI_ALLOC		83 /* LAN, ATR, FCOE, 64 VF */
/* max 16 qps */
#define i40e_default_queues_per_vmdq(pf) \
		(((pf)->hw_features & I40E_HW_RSS_AQ_CAPABLE) ? 4 : 1)
#define I40E_DEFAULT_QUEUES_PER_VF	4
#define I40E_MAX_VF_QUEUES		16
#define i40e_pf_get_max_q_per_tc(pf) \
		(((pf)->hw_features & I40E_HW_128_QP_RSS_CAPABLE) ? 128 : 64)
#define I40E_FDIR_RING_COUNT		32
#define I40E_MAX_AQ_BUF_SIZE		4096
#define I40E_AQ_LEN			256
#define I40E_AQ_WORK_LIMIT		66 /* max number of VFs + a little */
#define I40E_MAX_USER_PRIORITY		8
#define I40E_DEFAULT_TRAFFIC_CLASS	BIT(0)
#define I40E_QUEUE_WAIT_RETRY_LIMIT	10
#define I40E_INT_NAME_STR_LEN		(IFNAMSIZ + 16)

#define I40E_NVM_VERSION_LO_SHIFT	0
#define I40E_NVM_VERSION_LO_MASK	(0xff << I40E_NVM_VERSION_LO_SHIFT)
#define I40E_NVM_VERSION_HI_SHIFT	12
#define I40E_NVM_VERSION_HI_MASK	(0xf << I40E_NVM_VERSION_HI_SHIFT)
#define I40E_OEM_VER_BUILD_MASK		0xffff
#define I40E_OEM_VER_PATCH_MASK		0xff
#define I40E_OEM_VER_BUILD_SHIFT	8
#define I40E_OEM_VER_SHIFT		24
#define I40E_PHY_DEBUG_ALL \
	(I40E_AQ_PHY_DEBUG_DISABLE_LINK_FW | \
	I40E_AQ_PHY_DEBUG_DISABLE_ALL_LINK_FW)

#define I40E_OEM_EETRACK_ID		0xffffffff
#define I40E_OEM_GEN_SHIFT		24
#define I40E_OEM_SNAP_MASK		0x00ff0000
#define I40E_OEM_SNAP_SHIFT		16
#define I40E_OEM_RELEASE_MASK		0x0000ffff

#define I40E_RX_DESC(R, i)	\
	(&(((union i40e_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]))

/* BW rate limiting */
#define I40E_BW_CREDIT_DIVISOR		50 /* 50Mbps per BW credit */
#define I40E_BW_MBPS_DIVISOR		125000 /* rate / (1000000 / 8) Mbps */
#define I40E_MAX_BW_INACTIVE_ACCUM	4 /* accumulate 4 credits max */

/* driver state flags */
enum i40e_state_t {
	__I40E_TESTING,
	__I40E_CONFIG_BUSY,
	__I40E_CONFIG_DONE,
	__I40E_DOWN,
	__I40E_SERVICE_SCHED,
	__I40E_ADMINQ_EVENT_PENDING,
	__I40E_MDD_EVENT_PENDING,
	__I40E_VFLR_EVENT_PENDING,
	__I40E_RESET_RECOVERY_PENDING,
	__I40E_TIMEOUT_RECOVERY_PENDING,
	__I40E_MISC_IRQ_REQUESTED,
	__I40E_RESET_INTR_RECEIVED,
	__I40E_REINIT_REQUESTED,
	__I40E_PF_RESET_REQUESTED,
	__I40E_PF_RESET_AND_REBUILD_REQUESTED,
	__I40E_CORE_RESET_REQUESTED,
	__I40E_GLOBAL_RESET_REQUESTED,
	__I40E_EMP_RESET_INTR_RECEIVED,
	__I40E_SUSPENDED,
	__I40E_PTP_TX_IN_PROGRESS,
	__I40E_BAD_EEPROM,
	__I40E_DOWN_REQUESTED,
	__I40E_FD_FLUSH_REQUESTED,
	__I40E_FD_ATR_AUTO_DISABLED,
	__I40E_FD_SB_AUTO_DISABLED,
	__I40E_RESET_FAILED,
	__I40E_PORT_SUSPENDED,
	__I40E_VF_DISABLE,
	__I40E_MACVLAN_SYNC_PENDING,
	__I40E_TEMP_LINK_POLLING,
	__I40E_CLIENT_SERVICE_REQUESTED,
	__I40E_CLIENT_L2_CHANGE,
	__I40E_CLIENT_RESET,
	__I40E_VIRTCHNL_OP_PENDING,
	__I40E_RECOVERY_MODE,
	__I40E_VF_RESETS_DISABLED,	/* disable resets during i40e_remove */
	/* This must be last as it determines the size of the BITMAP */
	__I40E_STATE_SIZE__,
};

#define I40E_PF_RESET_FLAG	BIT_ULL(__I40E_PF_RESET_REQUESTED)
#define I40E_PF_RESET_AND_REBUILD_FLAG	\
	BIT_ULL(__I40E_PF_RESET_AND_REBUILD_REQUESTED)

/* VSI state flags */
enum i40e_vsi_state_t {
	__I40E_VSI_DOWN,
	__I40E_VSI_NEEDS_RESTART,
	__I40E_VSI_SYNCING_FILTERS,
	__I40E_VSI_OVERFLOW_PROMISC,
	__I40E_VSI_REINIT_REQUESTED,
	__I40E_VSI_DOWN_REQUESTED,
	/* This must be last as it determines the size of the BITMAP */
	__I40E_VSI_STATE_SIZE__,
};

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_IWARP_IRQ_PILE_ID  (I40E_PILE_VALID_BIT - 2)
};

#define I40E_DEFAULT_ATR_SAMPLE_RATE	20
#define I40E_FDIR_MAX_RAW_PACKET_SIZE	512
#define I40E_FDIR_BUFFER_FULL_MARGIN	10
#define I40E_FDIR_BUFFER_HEAD_ROOM	32
#define I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR (I40E_FDIR_BUFFER_HEAD_ROOM * 4)

#define I40E_HKEY_ARRAY_SIZE	((I40E_PFQF_HKEY_MAX_INDEX + 1) * 4)
#define I40E_HLUT_ARRAY_SIZE	((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
#define I40E_VF_HLUT_ARRAY_SIZE	((I40E_VFQF_HLUT1_MAX_INDEX + 1) * 4)

enum i40e_fd_stat_idx {
	I40E_FD_STAT_ATR,
	I40E_FD_STAT_SB,
	I40E_FD_STAT_ATR_TUNNEL,
	I40E_FD_STAT_PF_COUNT
};
#define I40E_FD_STAT_PF_IDX(pf_id) ((pf_id) * I40E_FD_STAT_PF_COUNT)
#define I40E_FD_ATR_STAT_IDX(pf_id) \
			(I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR)
#define I40E_FD_SB_STAT_IDX(pf_id)  \
			(I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_SB)
#define I40E_FD_ATR_TUNNEL_STAT_IDX(pf_id) \
			(I40E_FD_STAT