/* 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>
/* 64-bit per app capabilities */ #define NFP_NET_APP_CAP_SP_INDIFF BIT_ULL(0) /* indifferent to port speed */
/* 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
/* working with metadata vlan api (NFD version >= 2.0) */ #define NFP_NET_META_VLAN_STRIP BIT(31) #define NFP_NET_META_VLAN_TPID_MASK GENMASK(19, 16) #define NFP_NET_META_VLAN_TCI_MASK GENMASK(15, 0)
/* 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_VLAN 4 /* ctag or stag type */ #define NFP_NET_META_PORTID 5 #define NFP_NET_META_CSUM 6 /* checksum complete type */ #define NFP_NET_META_CONN_HANDLE 7 #define NFP_NET_META_RESYNC_INFO 8 /* RX resync info request */ #define NFP_NET_META_IPSEC 9 /* IPsec SA index for tx and rx */
/* 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
/* 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)
/* 3 words reserved for extended ctrl words (0x0098 - 0x00a4) * 3 words reserved for extended cap words (0x00a4 - 0x00b0) * Currently only one word is used, can be extended in future.
*/ #define NFP_NET_CFG_CTRL_WORD1 0x0098 #define NFP_NET_CFG_CTRL_PKT_TYPE (0x1 << 0) /* Pkttype offload */ #define NFP_NET_CFG_CTRL_IPSEC (0x1 << 1) /* IPsec offload */ #define NFP_NET_CFG_CTRL_MCAST_FILTER (0x1 << 2) /* Multicast Filter */ #define NFP_NET_CFG_CTRL_FREELIST_EN (0x1 << 6) /* Freelist enable flag bit */ #define NFP_NET_CFG_CTRL_FLOW_STEER (0x1 << 8) /* Flow steering */ #define NFP_NET_CFG_CTRL_USO (0x1 << 16) /* UDP segmentation offload */
#define NFP_NET_CFG_CAP_WORD1 0x00a4
/* 16B reserved for future use (0x00b0 - 0x00c0) */ #define NFP_NET_CFG_RESERVED 0x00b0 #define NFP_NET_CFG_RESERVED_SZ 0x0010
/* 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
/* 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
/* 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
/* Multicast filtering using general use mailbox * %NFP_NET_CFG_MULTICAST: Base address of Multicast filter mailbox * %NFP_NET_CFG_MULTICAST_MAC_HI: High 32-bits of Multicast MAC address * %NFP_NET_CFG_MULTICAST_MAC_LO: Low 16-bits of Multicast MAC address * %NFP_NET_CFG_MULTICAST_SZ: Size of the Multicast filter mailbox in bytes
*/ #define NFP_NET_CFG_MULTICAST NFP_NET_CFG_MBOX_SIMPLE_VAL #define NFP_NET_CFG_MULTICAST_MAC_HI NFP_NET_CFG_MULTICAST #define NFP_NET_CFG_MULTICAST_MAC_LO (NFP_NET_CFG_MULTICAST + 6) #define NFP_NET_CFG_MULTICAST_SZ 0x0006
/* Max size of FS rules in bytes */ #define NFP_NET_CFG_FS_SZ 0x0054 /* Sub commands for FS */ enum {
NFP_NET_CFG_MBOX_CMD_FS_ADD_V4,
NFP_NET_CFG_MBOX_CMD_FS_DEL_V4,
NFP_NET_CFG_MBOX_CMD_FS_ADD_V6,
NFP_NET_CFG_MBOX_CMD_FS_DEL_V6,
NFP_NET_CFG_MBOX_CMD_FS_ADD_ETHTYPE,
NFP_NET_CFG_MBOX_CMD_FS_DEL_ETHTYPE,
};
/* 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
/* 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. * * %NFP_NET_CFG_TLV_TYPE_REPR_CAP: * Single word, equivalent of %NFP_NET_CFG_CAP for representors, features which * can be used on representors. * * %NFP_NET_CFG_TLV_TYPE_MBOX_CMSG_TYPES: * Variable, bitmap of control message types supported by the mailbox handler. * Bit 0 corresponds to message type 0, bit 1 to 1, etc. Control messages are * encapsulated into simple TLVs, with an end TLV and written to the Mailbox. * * %NFP_NET_CFG_TLV_TYPE_CRYPTO_OPS: * 8 words, bitmaps of supported and enabled crypto operations. * First 16B (4 words) contains a bitmap of supported crypto operations, * and next 16B contain the enabled operations. * This capability is made obsolete by ones with better sync methods. * * %NFP_NET_CFG_TLV_TYPE_VNIC_STATS: * Variable, per-vNIC statistics, data should be 8B aligned (FW should insert * zero-length RESERVED TLV to pad). * TLV data has two sections. First is an array of statistics' IDs (2B each). * Second 8B statistics themselves. Statistics are 8B aligned, meaning there * may be a padding between sections. * Number of statistics can be determined as floor(tlv.length / (2 + 8)). * This TLV overwrites %NFP_NET_CFG_STATS_* values (statistics in this TLV * duplicate the old ones, so driver should be careful not to unnecessarily * render both). * * %NFP_NET_CFG_TLV_TYPE_CRYPTO_OPS_RX_SCAN: * Same as %NFP_NET_CFG_TLV_TYPE_CRYPTO_OPS, but crypto TLS does stream scan * RX sync, rather than kernel-assisted sync.
*/ #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 #define NFP_NET_CFG_TLV_TYPE_REPR_CAP 7 #define NFP_NET_CFG_TLV_TYPE_MBOX_CMSG_TYPES 10 #define NFP_NET_CFG_TLV_TYPE_CRYPTO_OPS 11 /* see crypto/fw.h */ #define NFP_NET_CFG_TLV_TYPE_VNIC_STATS 12 #define NFP_NET_CFG_TLV_TYPE_CRYPTO_OPS_RX_SCAN 13
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 * @repr_cap: capabilities for representors * @mbox_cmsg_types: cmsgs which can be passed through the mailbox * @crypto_ops: supported crypto operations * @crypto_enable_off: offset of crypto ops enable region * @vnic_stats_off: offset of vNIC stats area * @vnic_stats_cnt: number of vNIC stats * @tls_resync_ss: TLS resync will be performed via stream scan
*/ struct nfp_net_tlv_caps {
u32 me_freq_mhz; unsignedint mbox_off; unsignedint mbox_len;
u32 repr_cap;
u32 mbox_cmsg_types;
u32 crypto_ops; unsignedint crypto_enable_off; unsignedint vnic_stats_off; unsignedint vnic_stats_cnt; unsignedint tls_resync_ss:1;
};
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.