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|
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/* Copyright (C) 2015-2018 Netronome Systems, Inc. */
/*
* nfp_net_ctrl.h
* Netronome network device driver: Control BAR layout
* Authors: Jakub Kicinski <jakub.kicinski@netronome.com>
* Jason McMullan <jason.mcmullan@netronome.com>
* Rolf Neugebauer <rolf.neugebauer@netronome.com>
* Brad Petrus <brad.petrus@netronome.com>
*/
#ifndef _NFP_NET_CTRL_H_
#define _NFP_NET_CTRL_H_
#include <linux/types.h>
/**
* Configuration BAR size.
*
* The configuration BAR is 8K in size, but due to
* THB-350, 32k needs to be reserved.
*/
#define NFP_NET_CFG_BAR_SZ (32 * 1024)
/**
* Offset in Freelist buffer where packet starts on RX
*/
#define NFP_NET_RX_OFFSET 32
/**
* LSO parameters
* %NFP_NET_LSO_MAX_HDR_SZ: Maximum header size supported for LSO frames
* %NFP_NET_LSO_MAX_SEGS: Maximum number of segments LSO frame can produce
*/
#define NFP_NET_LSO_MAX_HDR_SZ 255
#define NFP_NET_LSO_MAX_SEGS 64
/**
* Prepend field types
*/
#define NFP_NET_META_FIELD_SIZE 4
#define NFP_NET_META_HASH 1 /* next field carries hash type */
#define NFP_NET_META_MARK 2
#define NFP_NET_META_PORTID 5
#define NFP_NET_META_CSUM 6 /* checksum complete type */
#define NFP_META_PORT_ID_CTRL ~0U
/**
* Hash type pre-pended when a RSS hash was computed
*/
#define NFP_NET_RSS_NONE 0
#define NFP_NET_RSS_IPV4 1
#define NFP_NET_RSS_IPV6 2
#define NFP_NET_RSS_IPV6_EX 3
#define NFP_NET_RSS_IPV4_TCP 4
#define NFP_NET_RSS_IPV6_TCP 5
#define NFP_NET_RSS_IPV6_EX_TCP 6
#define NFP_NET_RSS_IPV4_UDP 7
#define NFP_NET_RSS_IPV6_UDP 8
#define NFP_NET_RSS_IPV6_EX_UDP 9
/**
* Ring counts
* %NFP_NET_TXR_MAX: Maximum number of TX rings
* %NFP_NET_RXR_MAX: Maximum number of RX rings
*/
#define NFP_NET_TXR_MAX 64
#define NFP_NET_RXR_MAX 64
/**
* Read/Write config words (0x0000 - 0x002c)
* %NFP_NET_CFG_CTRL: Global control
* %NFP_NET_CFG_UPDATE: Indicate which fields are updated
* %NFP_NET_CFG_TXRS_ENABLE: Bitmask of enabled TX rings
* %NFP_NET_CFG_RXRS_ENABLE: Bitmask of enabled RX rings
* %NFP_NET_CFG_MTU: Set MTU size
* %NFP_NET_CFG_FLBUFSZ: Set freelist buffer size (must be larger than MTU)
* %NFP_NET_CFG_EXN: MSI-X table entry for exceptions
* %NFP_NET_CFG_LSC: MSI-X table entry for link state changes
* %NFP_NET_CFG_MACADDR: MAC address
*
* TODO:
* - define Error details in UPDATE
*/
#define NFP_NET_CFG_CTRL 0x0000
#define NFP_NET_CFG_CTRL_ENABLE (0x1 << 0) /* Global enable */
#define NFP_NET_CFG_CTRL_PROMISC (0x1 << 1) /* Enable Promisc mode */
#define NFP_NET_CFG_CTRL_L2BC (0x1 << 2) /* Allow L2 Broadcast */
#define NFP_NET_CFG_CTRL_L2MC (0x1 << 3) /* Allow L2 Multicast */
#define NFP_NET_CFG_CTRL_RXCSUM (0x1 << 4) /* Enable RX Checksum */
#define NFP_NET_CFG_CTRL_TXCSUM (0x1 << 5) /* Enable TX Checksum */
#define NFP_NET_CFG_CTRL_RXVLAN (0x1 << 6) /* Enable VLAN strip */
#define NFP_NET_CFG_CTRL_TXVLAN (0x1 << 7) /* Enable VLAN insert */
#define NFP_NET_CFG_CTRL_SCATTER (0x1 << 8) /* Scatter DMA */
#define NFP_NET_CFG_CTRL_GATHER (0x1 << 9) /* Gather DMA */
#define NFP_NET_CFG_CTRL_LSO (0x1 << 10) /* LSO/TSO (version 1) */
#define NFP_NET_CFG_CTRL_CTAG_FILTER (0x1 << 11) /* VLAN CTAG filtering */
#define NFP_NET_CFG_CTRL_CMSG_DATA (0x1 << 12) /* RX cmsgs on data Qs */
#define NFP_NET_CFG_CTRL_RINGCFG (0x1 << 16) /* Ring runtime changes */
#define NFP_NET_CFG_CTRL_RSS (0x1 << 17) /* RSS (version 1) */
#define NFP_NET_CFG_CTRL_IRQMOD (0x1 << 18) /* Interrupt moderation */
#define NFP_NET_CFG_CTRL_RINGPRIO (0x1 << 19) /* Ring priorities */
#define NFP_NET_CFG_CTRL_MSIXAUTO (0x1 << 20) /* MSI-X auto-masking */
#define NFP_NET_CFG_CTRL_TXRWB (0x1 << 21) /* Write-back of TX ring*/
#define NFP_NET_CFG_CTRL_L2SWITCH (0x1 << 22) /* L2 Switch */
#define NFP_NET_CFG_CTRL_L2SWITCH_LOCAL (0x1 << 23) /* Switch to local */
#define NFP_NET_CFG_CTRL_VXLAN (0x1 << 24) /* VXLAN tunnel support */
#define NFP_NET_CFG_CTRL_NVGRE (0x1 << 25) /* NVGRE tunnel support */
#define NFP_NET_CFG_CTRL_BPF (0x1 << 27) /* BPF offload capable */
#define NFP_NET_CFG_CTRL_LSO2 (0x1 << 28) /* LSO/TSO (version 2) */
#define NFP_NET_CFG_CTRL_RSS2 (0x1 << 29) /* RSS (version 2) */
#define NFP_NET_CFG_CTRL_CSUM_COMPLETE (0x1 << 30) /* Checksum complete */
#define NFP_NET_CFG_CTRL_LIVE_ADDR (0x1 << 31) /* live MAC addr change */
#define NFP_NET_CFG_CTRL_LSO_ANY (NFP_NET_CFG_CTRL_LSO | \
NFP_NET_CFG_CTRL_LSO2)
#define NFP_NET_CFG_CTRL_RSS_ANY (NFP_NET_CFG_CTRL_RSS | \
NFP_NET_CFG_CTRL_RSS2)
#define NFP_NET_CFG_CTRL_RXCSUM_ANY (NFP_NET_CFG_CTRL_RXCSUM | \
NFP_NET_CFG_CTRL_CSUM_COMPLETE)
#define NFP_NET_CFG_CTRL_CHAIN_META (NFP_NET_CFG_CTRL_RSS2 | \
NFP_NET_CFG_CTRL_CSUM_COMPLETE)
#define NFP_NET_CFG_UPDATE 0x0004
#define NFP_NET_CFG_UPDATE_GEN (0x1 << 0) /* General update */
#define NFP_NET_CFG_UPDATE_RING (0x1 << 1) /* Ring config change */
#define NFP_NET_CFG_UPDATE_RSS (0x1 << 2) /* RSS config change */
#define NFP_NET_CFG_UPDATE_TXRPRIO (0x1 << 3) /* TX Ring prio change */
#define NFP_NET_CFG_UPDATE_RXRPRIO (0x1 << 4) /* RX Ring prio change */
#define NFP_NET_CFG_UPDATE_MSIX (0x1 << 5) /* MSI-X change */
#define NFP_NET_CFG_UPDATE_L2SWITCH (0x1 << 6) /* Switch changes */
#define NFP_NET_CFG_UPDATE_RESET (0x1 << 7) /* Update due to FLR */
#define NFP_NET_CFG_UPDATE_IRQMOD (0x1 << 8) /* IRQ mod change */
#define NFP_NET_CFG_UPDATE_VXLAN (0x1 << 9) /* VXLAN port change */
#define NFP_NET_CFG_UPDATE_BPF (0x1 << 10) /* BPF program load */
#define NFP_NET_CFG_UPDATE_MACADDR (0x1 << 11) /* MAC address change */
#define NFP_NET_CFG_UPDATE_MBOX (0x1 << 12) /* Mailbox update */
#define NFP_NET_CFG_UPDATE_VF (0x1 << 13) /* VF settings change */
#define NFP_NET_CFG_UPDATE_ERR (0x1 << 31) /* A error occurred */
#define NFP_NET_CFG_TXRS_ENABLE 0x0008
#define NFP_NET_CFG_RXRS_ENABLE 0x0010
#define NFP_NET_CFG_MTU 0x0018
#define NFP_NET_CFG_FLBUFSZ 0x001c
#define NFP_NET_CFG_EXN 0x001f
#define NFP_NET_CFG_LSC 0x0020
#define NFP_NET_CFG_MACADDR 0x0024
/**
* Read-only words (0x0030 - 0x0050):
* %NFP_NET_CFG_VERSION: Firmware version number
* %NFP_NET_CFG_STS: Status
* %NFP_NET_CFG_CAP: Capabilities (same bits as %NFP_NET_CFG_CTRL)
* %NFP_NET_CFG_MAX_TXRINGS: Maximum number of TX rings
* %NFP_NET_CFG_MAX_RXRINGS: Maximum number of RX rings
* %NFP_NET_CFG_MAX_MTU: Maximum support MTU
* %NFP_NET_CFG_START_TXQ: Start Queue Control Queue to use for TX (PF only)
* %NFP_NET_CFG_START_RXQ: Start Queue Control Queue to use for RX (PF only)
*
* TODO:
* - define more STS bits
*/
#define NFP_NET_CFG_VERSION 0x0030
#define NFP_NET_CFG_VERSION_RESERVED_MASK (0xff << 24)
#define NFP_NET_CFG_VERSION_CLASS_MASK (0xff << 16)
#define NFP_NET_CFG_VERSION_CLASS(x) (((x) & 0xff) << 16)
#define NFP_NET_CFG_VERSION_CLASS_GENERIC 0
#define NFP_NET_CFG_VERSION_MAJOR_MASK (0xff << 8)
#define NFP_NET_CFG_VERSION_MAJOR(x) (((x) & 0xff) << 8)
#define NFP_NET_CFG_VERSION_MINOR_MASK (0xff << 0)
#define NFP_NET_CFG_VERSION_MINOR(x) (((x) & 0xff) << 0)
#define NFP_NET_CFG_STS 0x0034
#define NFP_NET_CFG_STS_LINK (0x1 << 0) /* Link up or down */
/* Link rate */
#define NFP_NET_CFG_STS_LINK_RATE_SHIFT 1
#define NFP_NET_CFG_STS_LINK_RATE_MASK 0xF
#define NFP_NET_CFG_STS_LINK_RATE \
(NFP_NET_CFG_STS_LINK_RATE_MASK << NFP_NET_CFG_STS_LINK_RATE_SHIFT)
#define NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED 0
#define NFP_NET_CFG_STS_LINK_RATE_UNKNOWN 1
#define NFP_NET_CFG_STS_LINK_RATE_1G 2
#define NFP_NET_CFG_STS_LINK_RATE_10G 3
#define NFP_NET_CFG_STS_LINK_RATE_25G 4
#define NFP_NET_CFG_STS_LINK_RATE_40G 5
#define NFP_NET_CFG_STS_LINK_RATE_50G 6
#define NFP_NET_CFG_STS_LINK_RATE_100G 7
#define NFP_NET_CFG_CAP 0x0038
#define NFP_NET_CFG_MAX_TXRINGS 0x003c
#define NFP_NET_CFG_MAX_RXRINGS 0x0040
#define NFP_NET_CFG_MAX_MTU 0x0044
/* Next two words are being used by VFs for solving THB350 issue */
#define NFP_NET_CFG_START_TXQ 0x0048
#define NFP_NET_CFG_START_RXQ 0x004c
/**
* Prepend configuration
*/
#define NFP_NET_CFG_RX_OFFSET 0x0050
#define NFP_NET_CFG_RX_OFFSET_DYNAMIC 0 /* Prepend mode */
/**
* RSS capabilities
* %NFP_NET_CFG_RSS_CAP_HFUNC: supported hash functions (same bits as
* %NFP_NET_CFG_RSS_HFUNC)
*/
#define NFP_NET_CFG_RSS_CAP 0x0054
#define NFP_NET_CFG_RSS_CAP_HFUNC 0xff000000
/**
* TLV area start
* %NFP_NET_CFG_TLV_BASE: start anchor of the TLV area
*/
#define NFP_NET_CFG_TLV_BASE 0x0058
/**
* VXLAN/UDP encap configuration
* %NFP_NET_CFG_VXLAN_PORT: Base address of table of tunnels' UDP dst ports
* %NFP_NET_CFG_VXLAN_SZ: Size of the UDP port table in bytes
*/
#define NFP_NET_CFG_VXLAN_PORT 0x0060
#define NFP_NET_CFG_VXLAN_SZ 0x0008
/**
* BPF section
* %NFP_NET_CFG_BPF_ABI: BPF ABI version
* %NFP_NET_CFG_BPF_CAP: BPF capabilities
* %NFP_NET_CFG_BPF_MAX_LEN: Maximum size of JITed BPF code in bytes
* %NFP_NET_CFG_BPF_START: Offset at which BPF will be loaded
* %NFP_NET_CFG_BPF_DONE: Offset to jump to on exit
* %NFP_NET_CFG_BPF_STACK_SZ: Total size of stack area in 64B chunks
* %NFP_NET_CFG_BPF_INL_MTU: Packet data split offset in 64B chunks
* %NFP_NET_CFG_BPF_SIZE: Size of the JITed BPF code in instructions
* %NFP_NET_CFG_BPF_ADDR: DMA address of the buffer with JITed BPF code
*/
#define NFP_NET_CFG_BPF_ABI 0x0080
#define NFP_NET_CFG_BPF_CAP 0x0081
#define NFP_NET_BPF_CAP_RELO (1 << 0) /* seamless reload */
#define NFP_NET_CFG_BPF_MAX_LEN 0x0082
#define NFP_NET_CFG_BPF_START 0x0084
#define NFP_NET_CFG_BPF_DONE 0x0086
#define NFP_NET_CFG_BPF_STACK_SZ 0x0088
#define NFP_NET_CFG_BPF_INL_MTU 0x0089
#define NFP_NET_CFG_BPF_SIZE 0x008e
#define NFP_NET_CFG_BPF_ADDR 0x0090
#define NFP_NET_CFG_BPF_CFG_8CTX (1 << 0) /* 8ctx mode */
#define NFP_NET_CFG_BPF_CFG_MASK 7ULL
#define NFP_NET_CFG_BPF_ADDR_MASK (~NFP_NET_CFG_BPF_CFG_MASK)
/**
* 40B reserved for future use (0x0098 - 0x00c0)
*/
#define NFP_NET_CFG_RESERVED 0x0098
#define NFP_NET_CFG_RESERVED_SZ 0x0028
/**
* RSS configuration (0x0100 - 0x01ac):
* Used only when NFP_NET_CFG_CTRL_RSS is enabled
* %NFP_NET_CFG_RSS_CFG: RSS configuration word
* %NFP_NET_CFG_RSS_KEY: RSS "secret" key
* %NFP_NET_CFG_RSS_ITBL: RSS indirection table
*/
#define NFP_NET_CFG_RSS_BASE 0x0100
#define NFP_NET_CFG_RSS_CTRL NFP_NET_CFG_RSS_BASE
#define NFP_NET_CFG_RSS_MASK (0x7f)
#define NFP_NET_CFG_RSS_MASK_of(_x) ((_x) & 0x7f)
#define NFP_NET_CFG_RSS_IPV4 (1 << 8) /* RSS for IPv4 */
#define NFP_NET_CFG_RSS_IPV6 (1 << 9) /* RSS for IPv6 */
#define NFP_NET_CFG_RSS_IPV4_TCP (1 << 10) /* RSS for IPv4/TCP */
#define NFP_NET_CFG_RSS_IPV4_UDP (1 << 11) /* RSS for IPv4/UDP */
#define NFP_NET_CFG_RSS_IPV6_TCP (1 << 12) /* RSS for IPv6/TCP */
#define NFP_NET_CFG_RSS_IPV6_UDP (1 << 13) /* RSS for IPv6/UDP */
#define NFP_NET_CFG_RSS_HFUNC 0xff000000
#define NFP_NET_CFG_RSS_TOEPLITZ (1 << 24) /* Use Toeplitz hash */
#define NFP_NET_CFG_RSS_XOR (1 << 25) /* Use XOR as hash */
#define NFP_NET_CFG_RSS_CRC32 (1 << 26) /* Use CRC32 as hash */
#define NFP_NET_CFG_RSS_HFUNCS 3
#define NFP_NET_CFG_RSS_KEY (NFP_NET_CFG_RSS_BASE + 0x4)
#define NFP_NET_CFG_RSS_KEY_SZ 0x28
#define NFP_NET_CFG_RSS_ITBL (NFP_NET_CFG_RSS_BASE + 0x4 + \
NFP_NET_CFG_RSS_KEY_SZ)
#define NFP_NET_CFG_RSS_ITBL_SZ 0x80
/**
* TX ring configuration (0x200 - 0x800)
* %NFP_NET_CFG_TXR_BASE: Base offset for TX ring configuration
* %NFP_NET_CFG_TXR_ADDR: Per TX ring DMA address (8B entries)
* %NFP_NET_CFG_TXR_WB_ADDR: Per TX ring write back DMA address (8B entries)
* %NFP_NET_CFG_TXR_SZ: Per TX ring ring size (1B entries)
* %NFP_NET_CFG_TXR_VEC: Per TX ring MSI-X table entry (1B entries)
* %NFP_NET_CFG_TXR_PRIO: Per TX ring priority (1B entries)
* %NFP_NET_CFG_TXR_IRQ_MOD: Per TX ring interrupt moderation packet
*/
#define NFP_NET_CFG_TXR_BASE 0x0200
#define NFP_NET_CFG_TXR_ADDR(_x) (NFP_NET_CFG_TXR_BASE + ((_x) * 0x8))
#define NFP_NET_CFG_TXR_WB_ADDR(_x) (NFP_NET_CFG_TXR_BASE + 0x200 + \
((_x) * 0x8))
#define NFP_NET_CFG_TXR_SZ(_x) (NFP_NET_CFG_TXR_BASE + 0x400 + (_x))
#define NFP_NET_CFG_TXR_VEC(_x) (NFP_NET_CFG_TXR_BASE + 0x440 + (_x))
#define NFP_NET_CFG_TXR_PRIO(_x) (NFP_NET_CFG_TXR_BASE + 0x480 + (_x))
#define NFP_NET_CFG_TXR_IRQ_MOD(_x) (NFP_NET_CFG_TXR_BASE + 0x500 + \
((_x) * 0x4))
/**
* RX ring configuration (0x0800 - 0x0c00)
* %NFP_NET_CFG_RXR_BASE: Base offset for RX ring configuration
* %NFP_NET_CFG_RXR_ADDR: Per RX ring DMA address (8B entries)
* %NFP_NET_CFG_RXR_SZ: Per RX ring ring size (1B entries)
* %NFP_NET_CFG_RXR_VEC: Per RX ring MSI-X table entry (1B entries)
* %NFP_NET_CFG_RXR_PRIO: Per RX ring priority (1B entries)
* %NFP_NET_CFG_RXR_IRQ_MOD: Per RX ring interrupt moderation (4B entries)
*/
#define NFP_NET_CFG_RXR_BASE 0x0800
#define NFP_NET_CFG_RXR_ADDR(_x) (NFP_NET_CFG_RXR_BASE + ((_x) * 0x8))
#define NFP_NET_CFG_RXR_SZ(_x) (NFP_NET_CFG_RXR_BASE + 0x200 + (_x))
#define NFP_NET_CFG_RXR_VEC(_x) (NFP_NET_CFG_RXR_BASE + 0x240 + (_x))
#define NFP_NET_CFG_RXR_PRIO(_x) (NFP_NET_CFG_RXR_BASE + 0x280 + (_x))
#define NFP_NET_CFG_RXR_IRQ_MOD(_x) (NFP_NET_CFG_RXR_BASE + 0x300 + \
((_x) * 0x4))
/**
* Interrupt Control/Cause registers (0x0c00 - 0x0d00)
* These registers are only used when MSI-X auto-masking is not
* enabled (%NFP_NET_CFG_CTRL_MSIXAUTO not set). The array is index
* by MSI-X entry and are 1B in size. If an entry is zero, the
* corresponding entry is enabled. If the FW generates an interrupt,
* it writes a cause into the corresponding field. This also masks
* the MSI-X entry and the host driver must clear the register to
* re-enable the interrupt.
*/
#define NFP_NET_CFG_ICR_BASE 0x0c00
#define NFP_NET_CFG_ICR(_x) (NFP_NET_CFG_ICR_BASE + (_x))
#define NFP_NET_CFG_ICR_UNMASKED 0x0
#define NFP_NET_CFG_ICR_RXTX 0x1
#define NFP_NET_CFG_ICR_LSC 0x2
/**
* General device stats (0x0d00 - 0x0d90)
* all counters are 64bit.
*/
#define NFP_NET_CFG_STATS_BASE 0x0d00
#define NFP_NET_CFG_STATS_RX_DISCARDS (NFP_NET_CFG_STATS_BASE + 0x00)
#define NFP_NET_CFG_STATS_RX_ERRORS (NFP_NET_CFG_STATS_BASE + 0x08)
#define NFP_NET_CFG_STATS_RX_OCTETS (NFP_NET_CFG_STATS_BASE + 0x10)
#define NFP_NET_CFG_STATS_RX_UC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x18)
#define NFP_NET_CFG_STATS_RX_MC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x20)
#define NFP_NET_CFG_STATS_RX_BC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x28)
#define NFP_NET_CFG_STATS_RX_FRAMES (NFP_NET_CFG_STATS_BASE + 0x30)
#define NFP_NET_CFG_STATS_RX_MC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x38)
#define NFP_NET_CFG_STATS_RX_BC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x40)
#define NFP_NET_CFG_STATS_TX_DISCARDS (NFP_NET_CFG_STATS_BASE + 0x48)
#define NFP_NET_CFG_STATS_TX_ERRORS (NFP_NET_CFG_STATS_BASE + 0x50)
#define NFP_NET_CFG_STATS_TX_OCTETS (NFP_NET_CFG_STATS_BASE + 0x58)
#define NFP_NET_CFG_STATS_TX_UC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x60)
#define NFP_NET_CFG_STATS_TX_MC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x68)
#define NFP_NET_CFG_STATS_TX_BC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x70)
#define NFP_NET_CFG_STATS_TX_FRAMES (NFP_NET_CFG_STATS_BASE + 0x78)
#define NFP_NET_CFG_STATS_TX_MC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x80)
#define NFP_NET_CFG_STATS_TX_BC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x88)
#define NFP_NET_CFG_STATS_APP0_FRAMES (NFP_NET_CFG_STATS_BASE + 0x90)
#define NFP_NET_CFG_STATS_APP0_BYTES (NFP_NET_CFG_STATS_BASE + 0x98)
#define NFP_NET_CFG_STATS_APP1_FRAMES (NFP_NET_CFG_STATS_BASE + 0xa0)
#define NFP_NET_CFG_STATS_APP1_BYTES (NFP_NET_CFG_STATS_BASE + 0xa8)
#define NFP_NET_CFG_STATS_APP2_FRAMES (NFP_NET_CFG_STATS_BASE + 0xb0)
#define NFP_NET_CFG_STATS_APP2_BYTES (NFP_NET_CFG_STATS_BASE + 0xb8)
#define NFP_NET_CFG_STATS_APP3_FRAMES (NFP_NET_CFG_STATS_BASE + 0xc0)
#define NFP_NET_CFG_STATS_APP3_BYTES (NFP_NET_CFG_STATS_BASE + 0xc8)
/**
* Per ring stats (0x1000 - 0x1800)
* options, 64bit per entry
* %NFP_NET_CFG_TXR_STATS: TX ring statistics (Packet and Byte count)
* %NFP_NET_CFG_RXR_STATS: RX ring statistics (Packet and Byte count)
*/
#define NFP_NET_CFG_TXR_STATS_BASE 0x1000
#define NFP_NET_CFG_TXR_STATS(_x) (NFP_NET_CFG_TXR_STATS_BASE + \
((_x) * 0x10))
#define NFP_NET_CFG_RXR_STATS_BASE 0x1400
#define NFP_NET_CFG_RXR_STATS(_x) (NFP_NET_CFG_RXR_STATS_BASE + \
((_x) * 0x10))
/**
* General use mailbox area (0x1800 - 0x19ff)
* 4B used for update command and 4B return code
* followed by a max of 504B of variable length value
*/
#define NFP_NET_CFG_MBOX_BASE 0x1800
#define NFP_NET_CFG_MBOX_VAL_MAX_SZ 0x1F8
#define NFP_NET_CFG_MBOX_SIMPLE_CMD 0x0
#define NFP_NET_CFG_MBOX_SIMPLE_RET 0x4
#define NFP_NET_CFG_MBOX_SIMPLE_VAL 0x8
#define NFP_NET_CFG_MBOX_SIMPLE_LEN 0x12
#define NFP_NET_CFG_MBOX_CMD_CTAG_FILTER_ADD 1
#define NFP_NET_CFG_MBOX_CMD_CTAG_FILTER_KILL 2
/**
* VLAN filtering using general use mailbox
* %NFP_NET_CFG_VLAN_FILTER: Base address of VLAN filter mailbox
* %NFP_NET_CFG_VLAN_FILTER_VID: VLAN ID to filter
* %NFP_NET_CFG_VLAN_FILTER_PROTO: VLAN proto to filter
* %NFP_NET_CFG_VXLAN_SZ: Size of the VLAN filter mailbox in bytes
*/
#define NFP_NET_CFG_VLAN_FILTER NFP_NET_CFG_MBOX_SIMPLE_VAL
#define NFP_NET_CFG_VLAN_FILTER_VID NFP_NET_CFG_VLAN_FILTER
#define NFP_NET_CFG_VLAN_FILTER_PROTO (NFP_NET_CFG_VLAN_FILTER + 2)
#define NFP_NET_CFG_VLAN_FILTER_SZ 0x0004
/**
* TLV capabilities
* %NFP_NET_CFG_TLV_TYPE: Offset of type within the TLV
* %NFP_NET_CFG_TLV_TYPE_REQUIRED: Driver must be able to parse the TLV
* %NFP_NET_CFG_TLV_LENGTH: Offset of length within the TLV
* %NFP_NET_CFG_TLV_LENGTH_INC: TLV length increments
* %NFP_NET_CFG_TLV_VALUE: Offset of value with the TLV
*
* List of simple TLV structures, first one starts at %NFP_NET_CFG_TLV_BASE.
* Last structure must be of type %NFP_NET_CFG_TLV_TYPE_END. Presence of TLVs
* is indicated by %NFP_NET_CFG_TLV_BASE being non-zero. TLV structures may
* fill the entire remainder of the BAR or be shorter. FW must make sure TLVs
* don't conflict with other features which allocate space beyond
* %NFP_NET_CFG_TLV_BASE. %NFP_NET_CFG_TLV_TYPE_RESERVED should be used to wrap
* space used by such features.
* Note that the 4 byte TLV header is not counted in %NFP_NET_CFG_TLV_LENGTH.
*/
#define NFP_NET_CFG_TLV_TYPE 0x00
#define NFP_NET_CFG_TLV_TYPE_REQUIRED 0x8000
#define NFP_NET_CFG_TLV_LENGTH 0x02
#define NFP_NET_CFG_TLV_LENGTH_INC 4
#define NFP_NET_CFG_TLV_VALUE 0x04
#define NFP_NET_CFG_TLV_HEADER_REQUIRED 0x80000000
#define NFP_NET_CFG_TLV_HEADER_TYPE 0x7fff0000
#define NFP_NET_CFG_TLV_HEADER_LENGTH 0x0000ffff
/**
* Capability TLV types
*
* %NFP_NET_CFG_TLV_TYPE_UNKNOWN:
* Special TLV type to catch bugs, should never be encountered. Drivers should
* treat encountering this type as error and refuse to probe.
*
* %NFP_NET_CFG_TLV_TYPE_RESERVED:
* Reserved space, may contain legacy fixed-offset fields, or be used for
* padding. The use of this type should be otherwise avoided.
*
* %NFP_NET_CFG_TLV_TYPE_END:
* Empty, end of TLV list. Must be the last TLV. Drivers will stop processing
* further TLVs when encountered.
*
* %NFP_NET_CFG_TLV_TYPE_ME_FREQ:
* Single word, ME frequency in MHz as used in calculation for
* %NFP_NET_CFG_RXR_IRQ_MOD and %NFP_NET_CFG_TXR_IRQ_MOD.
*
* %NFP_NET_CFG_TLV_TYPE_MBOX:
* Variable, mailbox area. Overwrites the default location which is
* %NFP_NET_CFG_MBOX_BASE and length %NFP_NET_CFG_MBOX_VAL_MAX_SZ.
*
* %NFP_NET_CFG_TLV_TYPE_EXPERIMENTAL0:
* %NFP_NET_CFG_TLV_TYPE_EXPERIMENTAL1:
* Variable, experimental IDs. IDs designated for internal development and
* experiments before a stable TLV ID has been allocated to a feature. Should
* never be present in production firmware.
*/
#define NFP_NET_CFG_TLV_TYPE_UNKNOWN 0
#define NFP_NET_CFG_TLV_TYPE_RESERVED 1
#define NFP_NET_CFG_TLV_TYPE_END 2
#define NFP_NET_CFG_TLV_TYPE_ME_FREQ 3
#define NFP_NET_CFG_TLV_TYPE_MBOX 4
#define NFP_NET_CFG_TLV_TYPE_EXPERIMENTAL0 5
#define NFP_NET_CFG_TLV_TYPE_EXPERIMENTAL1 6
struct device;
/**
* struct nfp_net_tlv_caps - parsed control BAR TLV capabilities
* @me_freq_mhz: ME clock_freq (MHz)
* @mbox_off: vNIC mailbox area offset
* @mbox_len: vNIC mailbox area length
*/
struct nfp_net_tlv_caps {
u32 me_freq_mhz;
unsigned int mbox_off;
unsigned int mbox_len;
};
int nfp_net_tlv_caps_parse(struct device *dev, u8 __iomem *ctrl_mem,
struct nfp_net_tlv_caps *caps);
static inline bool nfp_net_has_mbox(struct nfp_net_tlv_caps *caps)
{
return caps->mbox_len >= NFP_NET_CFG_MBOX_SIMPLE_LEN;
}
#endif /* _NFP_NET_CTRL_H_ */
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