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lastdragon
2026-09-06 12:53:21 -06:00
parent 662efe3c2a
commit ad2088d178
94853 changed files with 43200404 additions and 0 deletions
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linux-7.2.3/include/linux/net/intel/libie/adminq.h
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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2025 Intel Corporation */
#ifndef __LIBIE_ADMINQ_H
#define __LIBIE_ADMINQ_H
#include <linux/build_bug.h>
#include <linux/types.h>
#define LIBIE_CHECK_STRUCT_LEN(n, X) \
static_assert((n) == sizeof(struct X))
#define LIBIE_AQ_MAX_BUF_LEN 4096
/**
* struct libie_aqc_generic - Generic structure used in adminq communication
* @param0: generic parameter high 32bit
* @param1: generic parameter lower 32bit
* @addr_high: generic address high 32bit
* @addr_low: generic address lower 32bit
*/
struct libie_aqc_generic {
__le32 param0;
__le32 param1;
__le32 addr_high;
__le32 addr_low;
};
LIBIE_CHECK_STRUCT_LEN(16, libie_aqc_generic);
/**
* struct libie_aqc_get_ver - Used in command get version (direct 0x0001)
* @rom_ver: rom version
* @fw_build: number coressponding to firmware build
* @fw_branch: branch identifier of firmware version
* @fw_major: major number of firmware version
* @fw_minor: minor number of firmware version
* @fw_patch: patch of firmware version
* @api_branch: brancch identifier of API version
* @api_major: major number of API version
* @api_minor: minor number of API version
* @api_patch: patch of API version
*/
struct libie_aqc_get_ver {
__le32 rom_ver;
__le32 fw_build;
u8 fw_branch;
u8 fw_major;
u8 fw_minor;
u8 fw_patch;
u8 api_branch;
u8 api_major;
u8 api_minor;
u8 api_patch;
};
LIBIE_CHECK_STRUCT_LEN(16, libie_aqc_get_ver);
/**
* struct libie_aqc_driver_ver - Used in command send driver version
* (indirect 0x0002)
* @major_ver: driver major version
* @minor_ver: driver minor version
* @build_ver: driver build version
* @subbuild_ver: driver subbuild version
* @reserved: for feature use
* @addr_high: high part of response address buff
* @addr_low: low part of response address buff
*/
struct libie_aqc_driver_ver {
u8 major_ver;
u8 minor_ver;
u8 build_ver;
u8 subbuild_ver;
u8 reserved[4];
__le32 addr_high;
__le32 addr_low;
};
LIBIE_CHECK_STRUCT_LEN(16, libie_aqc_driver_ver);
enum libie_aq_res_id {
LIBIE_AQC_RES_ID_NVM = 1,
LIBIE_AQC_RES_ID_SDP = 2,
LIBIE_AQC_RES_ID_CHNG_LOCK = 3,
LIBIE_AQC_RES_ID_GLBL_LOCK = 4,
};
enum libie_aq_res_access_type {
LIBIE_AQC_RES_ACCESS_READ = 1,
LIBIE_AQC_RES_ACCESS_WRITE = 2,
};
#define LIBIE_AQ_RES_NVM_READ_DFLT_TIMEOUT_MS 3000
#define LIBIE_AQ_RES_NVM_WRITE_DFLT_TIMEOUT_MS 180000
#define LIBIE_AQ_RES_CHNG_LOCK_DFLT_TIMEOUT_MS 1000
#define LIBIE_AQ_RES_GLBL_LOCK_DFLT_TIMEOUT_MS 3000
#define LIBIE_AQ_RES_GLBL_SUCCESS 0
#define LIBIE_AQ_RES_GLBL_IN_PROG 1
#define LIBIE_AQ_RES_GLBL_DONE 2
/**
* struct libie_aqc_req_res - Request resource ownership
* @res_id: resource ID (look at enum definition above)
* @access_type: read or write (enum definition above)
* @timeout: Upon successful completion, FW writes this value and driver is
* expected to release resource before timeout. This value is provided in
* milliseconds.
* @res_number: for SDP, this is the pin ID of the SDP
* @status: status only used for LIBIE_AQC_RES_ID_GLBL_LOCK, for others reserved
* @reserved: reserved for future use
*
* Used in commands:
* request resource ownership (direct 0x0008)
* request resource ownership (direct 0x0009)
*/
struct libie_aqc_req_res {
__le16 res_id;
__le16 access_type;
__le32 timeout;
__le32 res_number;
__le16 status;
u8 reserved[2];
};
LIBIE_CHECK_STRUCT_LEN(16, libie_aqc_req_res);
/**
* struct libie_aqc_list_caps - Getting capabilities
* @cmd_flags: command flags
* @pf_index: index of PF to get caps from
* @reserved: reserved for future use
* @count: number of capabilities records
* @addr_high: high part of response address buff
* @addr_low: low part of response address buff
*
* Used in commands:
* get function capabilities (indirect 0x000A)
* get device capabilities (indirect 0x000B)
*/
struct libie_aqc_list_caps {
u8 cmd_flags;
u8 pf_index;
u8 reserved[2];
__le32 count;
__le32 addr_high;
__le32 addr_low;
};
LIBIE_CHECK_STRUCT_LEN(16, libie_aqc_list_caps);
/* Device/Function buffer entry, repeated per reported capability */
#define LIBIE_AQC_CAPS_SWITCH_MODE 0x0001
#define LIBIE_AQC_CAPS_MNG_MODE 0x0002
#define LIBIE_AQC_CAPS_NPAR_ACTIVE 0x0003
#define LIBIE_AQC_CAPS_OS2BMC_CAP 0x0004
#define LIBIE_AQC_CAPS_VALID_FUNCTIONS 0x0005
#define LIBIE_AQC_MAX_VALID_FUNCTIONS 0x8
#define LIBIE_AQC_CAPS_SRIOV 0x0012
#define LIBIE_AQC_CAPS_VF 0x0013
#define LIBIE_AQC_CAPS_VMDQ 0x0014
#define LIBIE_AQC_CAPS_8021QBG 0x0015
#define LIBIE_AQC_CAPS_8021QBR 0x0016
#define LIBIE_AQC_CAPS_VSI 0x0017
#define LIBIE_AQC_CAPS_DCB 0x0018
#define LIBIE_AQC_CAPS_FCOE 0x0021
#define LIBIE_AQC_CAPS_ISCSI 0x0022
#define LIBIE_AQC_CAPS_RSS 0x0040
#define LIBIE_AQC_CAPS_RXQS 0x0041
#define LIBIE_AQC_CAPS_TXQS 0x0042
#define LIBIE_AQC_CAPS_MSIX 0x0043
#define LIBIE_AQC_CAPS_VF_MSIX 0x0044
#define LIBIE_AQC_CAPS_FD 0x0045
#define LIBIE_AQC_CAPS_1588 0x0046
#define LIBIE_AQC_CAPS_MAX_MTU 0x0047
#define LIBIE_AQC_CAPS_NVM_VER 0x0048
#define LIBIE_AQC_CAPS_PENDING_NVM_VER 0x0049
#define LIBIE_AQC_CAPS_OROM_VER 0x004A
#define LIBIE_AQC_CAPS_PENDING_OROM_VER 0x004B
#define LIBIE_AQC_CAPS_NET_VER 0x004C
#define LIBIE_AQC_CAPS_PENDING_NET_VER 0x004D
#define LIBIE_AQC_CAPS_RDMA 0x0051
#define LIBIE_AQC_CAPS_LED 0x0061
#define LIBIE_AQC_CAPS_SDP 0x0062
#define LIBIE_AQC_CAPS_MDIO 0x0063
#define LIBIE_AQC_CAPS_WSR_PROT 0x0064
#define LIBIE_AQC_CAPS_SENSOR_READING 0x0067
#define LIBIE_AQC_INLINE_IPSEC 0x0070
#define LIBIE_AQC_CAPS_NUM_ENABLED_PORTS 0x0072
#define LIBIE_AQC_CAPS_PCIE_RESET_AVOIDANCE 0x0076
#define LIBIE_AQC_CAPS_POST_UPDATE_RESET_RESTRICT 0x0077
#define LIBIE_AQC_CAPS_NVM_MGMT 0x0080
#define LIBIE_AQC_CAPS_EXT_TOPO_DEV_IMG0 0x0081
#define LIBIE_AQC_CAPS_EXT_TOPO_DEV_IMG1 0x0082
#define LIBIE_AQC_CAPS_EXT_TOPO_DEV_IMG2 0x0083
#define LIBIE_AQC_CAPS_EXT_TOPO_DEV_IMG3 0x0084
#define LIBIE_AQC_CAPS_TX_SCHED_TOPO_COMP_MODE 0x0085
#define LIBIE_AQC_CAPS_NAC_TOPOLOGY 0x0087
#define LIBIE_AQC_CAPS_FW_LAG_SUPPORT 0x0092
#define LIBIE_AQC_BIT_ROCEV2_LAG BIT(0)
#define LIBIE_AQC_BIT_SRIOV_LAG BIT(1)
#define LIBIE_AQC_BIT_SRIOV_AA_LAG BIT(2)
#define LIBIE_AQC_CAPS_EEE 0x009B
#define LIBIE_AQC_CAPS_FLEX10 0x00F1
#define LIBIE_AQC_CAPS_CEM 0x00F2
/**
* struct libie_aqc_list_caps_elem - Getting list of caps elements
* @cap: one from the defines list above
* @major_ver: major version
* @minor_ver: minor version
* @number: number of resources described by this capability
* @logical_id: logical ID, only meaningful for some types of resources
* @phys_id: physical ID, only meaningful for some types of resources
* @rsvd1: reserved for future use
* @rsvd2: reserved for future use
*/
struct libie_aqc_list_caps_elem {
__le16 cap;
u8 major_ver;
u8 minor_ver;
__le32 number;
__le32 logical_id;
__le32 phys_id;
__le64 rsvd1;
__le64 rsvd2;
};
LIBIE_CHECK_STRUCT_LEN(32, libie_aqc_list_caps_elem);
/* Admin Queue command opcodes */
enum libie_adminq_opc {
/* FW Logging Commands */
libie_aqc_opc_fw_logs_config = 0xFF30,
libie_aqc_opc_fw_logs_register = 0xFF31,
libie_aqc_opc_fw_logs_query = 0xFF32,
libie_aqc_opc_fw_logs_event = 0xFF33,
};
enum libie_aqc_fw_logging_mod {
LIBIE_AQC_FW_LOG_ID_GENERAL = 0,
LIBIE_AQC_FW_LOG_ID_CTRL,
LIBIE_AQC_FW_LOG_ID_LINK,
LIBIE_AQC_FW_LOG_ID_LINK_TOPO,
LIBIE_AQC_FW_LOG_ID_DNL,
LIBIE_AQC_FW_LOG_ID_I2C,
LIBIE_AQC_FW_LOG_ID_SDP,
LIBIE_AQC_FW_LOG_ID_MDIO,
LIBIE_AQC_FW_LOG_ID_ADMINQ,
LIBIE_AQC_FW_LOG_ID_HDMA,
LIBIE_AQC_FW_LOG_ID_LLDP,
LIBIE_AQC_FW_LOG_ID_DCBX,
LIBIE_AQC_FW_LOG_ID_DCB,
LIBIE_AQC_FW_LOG_ID_XLR,
LIBIE_AQC_FW_LOG_ID_NVM,
LIBIE_AQC_FW_LOG_ID_AUTH,
LIBIE_AQC_FW_LOG_ID_VPD,
LIBIE_AQC_FW_LOG_ID_IOSF,
LIBIE_AQC_FW_LOG_ID_PARSER,
LIBIE_AQC_FW_LOG_ID_SW,
LIBIE_AQC_FW_LOG_ID_SCHEDULER,
LIBIE_AQC_FW_LOG_ID_TXQ,
LIBIE_AQC_FW_LOG_ID_RSVD,
LIBIE_AQC_FW_LOG_ID_POST,
LIBIE_AQC_FW_LOG_ID_WATCHDOG,
LIBIE_AQC_FW_LOG_ID_TASK_DISPATCH,
LIBIE_AQC_FW_LOG_ID_MNG,
LIBIE_AQC_FW_LOG_ID_SYNCE,
LIBIE_AQC_FW_LOG_ID_HEALTH,
LIBIE_AQC_FW_LOG_ID_TSDRV,
LIBIE_AQC_FW_LOG_ID_PFREG,
LIBIE_AQC_FW_LOG_ID_MDLVER,
LIBIE_AQC_FW_LOG_ID_MAX
};
/* Set FW Logging configuration (indirect 0xFF30)
* Register for FW Logging (indirect 0xFF31)
* Query FW Logging (indirect 0xFF32)
* FW Log Event (indirect 0xFF33)
*/
#define LIBIE_AQC_FW_LOG_CONF_UART_EN BIT(0)
#define LIBIE_AQC_FW_LOG_CONF_AQ_EN BIT(1)
#define LIBIE_AQC_FW_LOG_QUERY_REGISTERED BIT(2)
#define LIBIE_AQC_FW_LOG_CONF_SET_VALID BIT(3)
#define LIBIE_AQC_FW_LOG_AQ_REGISTER BIT(0)
#define LIBIE_AQC_FW_LOG_AQ_QUERY BIT(2)
#define LIBIE_AQC_FW_LOG_MIN_RESOLUTION 1
#define LIBIE_AQC_FW_LOG_MAX_RESOLUTION 128
struct libie_aqc_fw_log {
u8 cmd_flags;
u8 rsp_flag;
__le16 fw_rt_msb;
union {
struct {
__le32 fw_rt_lsb;
} sync;
struct {
__le16 log_resolution;
__le16 mdl_cnt;
} cfg;
} ops;
__le32 addr_high;
__le32 addr_low;
};
/* Response Buffer for:
* Set Firmware Logging Configuration (0xFF30)
* Query FW Logging (0xFF32)
*/
struct libie_aqc_fw_log_cfg_resp {
__le16 module_identifier;
u8 log_level;
u8 rsvd0;
};
/**
* struct libie_aq_desc - Admin Queue (AQ) descriptor
* @flags: LIBIE_AQ_FLAG_* flags
* @opcode: AQ command opcode
* @datalen: length in bytes of indirect/external data buffer
* @retval: return value from firmware
* @cookie_high: opaque data high-half
* @cookie_low: opaque data low-half
* @params: command-specific parameters
*
* Descriptor format for commands the driver posts on the Admin Transmit Queue
* (ATQ). The firmware writes back onto the command descriptor and returns
* the result of the command. Asynchronous events that are not an immediate
* result of the command are written to the Admin Receive Queue (ARQ) using
* the same descriptor format. Descriptors are in little-endian notation with
* 32-bit words.
*/
struct libie_aq_desc {
__le16 flags;
__le16 opcode;
__le16 datalen;
__le16 retval;
__le32 cookie_high;
__le32 cookie_low;
union {
u8 raw[16];
struct libie_aqc_generic generic;
struct libie_aqc_get_ver get_ver;
struct libie_aqc_driver_ver driver_ver;
struct libie_aqc_req_res res_owner;
struct libie_aqc_list_caps get_cap;
struct libie_aqc_fw_log fw_log;
} params;
};
LIBIE_CHECK_STRUCT_LEN(32, libie_aq_desc);
/* FW defined boundary for a large buffer, 4k >= Large buffer > 512 bytes */
#define LIBIE_AQ_LG_BUF 512
/* Flags sub-structure
* |0 |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |
* |DD |CMP|ERR|VFE| * * RESERVED * * |LB |RD |VFC|BUF|SI |EI |FE |
*/
#define LIBIE_AQ_FLAG_DD BIT(0) /* 0x1 */
#define LIBIE_AQ_FLAG_CMP BIT(1) /* 0x2 */
#define LIBIE_AQ_FLAG_ERR BIT(2) /* 0x4 */
#define LIBIE_AQ_FLAG_VFE BIT(3) /* 0x8 */
#define LIBIE_AQ_FLAG_LB BIT(9) /* 0x200 */
#define LIBIE_AQ_FLAG_RD BIT(10) /* 0x400 */
#define LIBIE_AQ_FLAG_VFC BIT(11) /* 0x800 */
#define LIBIE_AQ_FLAG_BUF BIT(12) /* 0x1000 */
#define LIBIE_AQ_FLAG_SI BIT(13) /* 0x2000 */
#define LIBIE_AQ_FLAG_EI BIT(14) /* 0x4000 */
#define LIBIE_AQ_FLAG_FE BIT(15) /* 0x8000 */
/* error codes */
enum libie_aq_err {
LIBIE_AQ_RC_OK = 0, /* Success */
LIBIE_AQ_RC_EPERM = 1, /* Operation not permitted */
LIBIE_AQ_RC_ENOENT = 2, /* No such element */
LIBIE_AQ_RC_ESRCH = 3, /* Bad opcode */
LIBIE_AQ_RC_EIO = 5, /* I/O error */
LIBIE_AQ_RC_EAGAIN = 8, /* Try again */
LIBIE_AQ_RC_ENOMEM = 9, /* Out of memory */
LIBIE_AQ_RC_EACCES = 10, /* Permission denied */
LIBIE_AQ_RC_EBUSY = 12, /* Device or resource busy */
LIBIE_AQ_RC_EEXIST = 13, /* Object already exists */
LIBIE_AQ_RC_EINVAL = 14, /* Invalid argument */
LIBIE_AQ_RC_ENOSPC = 16, /* No space left or allocation failure */
LIBIE_AQ_RC_ENOSYS = 17, /* Function not implemented */
LIBIE_AQ_RC_EMODE = 21, /* Op not allowed in current dev mode */
LIBIE_AQ_RC_ENOSEC = 24, /* Missing security manifest */
LIBIE_AQ_RC_EBADSIG = 25, /* Bad RSA signature */
LIBIE_AQ_RC_ESVN = 26, /* SVN number prohibits this package */
LIBIE_AQ_RC_EBADMAN = 27, /* Manifest hash mismatch */
LIBIE_AQ_RC_EBADBUF = 28, /* Buffer hash mismatches manifest */
};
static inline void *libie_aq_raw(struct libie_aq_desc *desc)
{
return &desc->params.raw;
}
const char *libie_aq_str(enum libie_aq_err err);
#endif /* __LIBIE_ADMINQ_H */
linux-7.2.3/include/linux/net/intel/libie/fwlog.h
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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2022, Intel Corporation. */
#ifndef _LIBIE_FWLOG_H_
#define _LIBIE_FWLOG_H_
#include <linux/net/intel/libie/adminq.h>
/* Only a single log level should be set and all log levels under the set value
* are enabled, e.g. if log level is set to LIBIE_FW_LOG_LEVEL_VERBOSE, then all
* other log levels are included (except LIBIE_FW_LOG_LEVEL_NONE)
*/
enum libie_fwlog_level {
LIBIE_FWLOG_LEVEL_NONE = 0,
LIBIE_FWLOG_LEVEL_ERROR = 1,
LIBIE_FWLOG_LEVEL_WARNING = 2,
LIBIE_FWLOG_LEVEL_NORMAL = 3,
LIBIE_FWLOG_LEVEL_VERBOSE = 4,
LIBIE_FWLOG_LEVEL_INVALID, /* all values >= this entry are invalid */
};
struct libie_fwlog_module_entry {
/* module ID for the corresponding firmware logging event */
u16 module_id;
/* verbosity level for the module_id */
u8 log_level;
};
struct libie_fwlog_cfg {
/* list of modules for configuring log level */
struct libie_fwlog_module_entry module_entries[LIBIE_AQC_FW_LOG_ID_MAX];
/* options used to configure firmware logging */
u16 options;
#define LIBIE_FWLOG_OPTION_ARQ_ENA BIT(0)
#define LIBIE_FWLOG_OPTION_UART_ENA BIT(1)
/* set before calling libie_fwlog_init() so the PF registers for
* firmware logging on initialization
*/
#define LIBIE_FWLOG_OPTION_REGISTER_ON_INIT BIT(2)
/* set in the libie_aq_fwlog_get() response if the PF is registered for
* FW logging events over ARQ
*/
#define LIBIE_FWLOG_OPTION_IS_REGISTERED BIT(3)
/* minimum number of log events sent per Admin Receive Queue event */
u16 log_resolution;
};
struct libie_fwlog_data {
u16 data_size;
u8 *data;
};
struct libie_fwlog_ring {
struct libie_fwlog_data *rings;
u16 index;
u16 size;
u16 head;
u16 tail;
};
#define LIBIE_FWLOG_RING_SIZE_INDEX_DFLT 3
#define LIBIE_FWLOG_RING_SIZE_DFLT 256
#define LIBIE_FWLOG_RING_SIZE_MAX 512
struct libie_fwlog {
struct libie_fwlog_cfg cfg;
bool supported; /* does hardware support FW logging? */
struct libie_fwlog_ring ring;
struct dentry *debugfs;
/* keep track of all the dentrys for FW log modules */
struct dentry **debugfs_modules;
struct_group_tagged(libie_fwlog_api, api,
struct pci_dev *pdev;
int (*send_cmd)(void *, struct libie_aq_desc *, void *, u16);
void *priv;
struct dentry *debugfs_root;
);
};
#if IS_ENABLED(CONFIG_LIBIE_FWLOG)
int libie_fwlog_init(struct libie_fwlog *fwlog, struct libie_fwlog_api *api);
void libie_fwlog_deinit(struct libie_fwlog *fwlog);
void libie_fwlog_reregister(struct libie_fwlog *fwlog);
void libie_get_fwlog_data(struct libie_fwlog *fwlog, u8 *buf, u16 len);
#else
static inline int libie_fwlog_init(struct libie_fwlog *fwlog,
struct libie_fwlog_api *api)
{
return -EOPNOTSUPP;
}
static inline void libie_fwlog_deinit(struct libie_fwlog *fwlog) { }
static inline void libie_fwlog_reregister(struct libie_fwlog *fwlog) { }
static inline void libie_get_fwlog_data(struct libie_fwlog *fwlog, u8 *buf,
u16 len) { }
#endif /* CONFIG_LIBIE_FWLOG */
#endif /* _LIBIE_FWLOG_H_ */
linux-7.2.3/include/linux/net/intel/libie/pctype.h
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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2025 Intel Corporation */
#ifndef __LIBIE_PCTYPE_H
#define __LIBIE_PCTYPE_H
/* Packet Classifier Type indexes, used to set the xxQF_HENA registers. Also
* communicated over the virtchnl API as part of struct virtchnl_rss_hashena.
*/
enum libie_filter_pctype {
/* Note: Values 0-28 are reserved for future use.
* Value 29, 30, 32 are not supported on XL710 and X710.
*/
LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP = 29,
LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP = 30,
LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP = 31,
LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK = 32,
LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP = 33,
LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP = 34,
LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER = 35,
LIBIE_FILTER_PCTYPE_FRAG_IPV4 = 36,
/* Note: Values 37-38 are reserved for future use.
* Value 39, 40, 42 are not supported on XL710 and X710.
*/
LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP = 39,
LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP = 40,
LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP = 41,
LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK = 42,
LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP = 43,
LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP = 44,
LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER = 45,
LIBIE_FILTER_PCTYPE_FRAG_IPV6 = 46,
/* Note: Value 47 is reserved for future use */
LIBIE_FILTER_PCTYPE_FCOE_OX = 48,
LIBIE_FILTER_PCTYPE_FCOE_RX = 49,
LIBIE_FILTER_PCTYPE_FCOE_OTHER = 50,
/* Note: Values 51-62 are reserved for future use */
LIBIE_FILTER_PCTYPE_L2_PAYLOAD = 63
};
#endif /* __LIBIE_PCTYPE_H */
linux-7.2.3/include/linux/net/intel/libie/rx.h
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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2024 Intel Corporation */
#ifndef __LIBIE_RX_H
#define __LIBIE_RX_H
#include <net/libeth/rx.h>
/* Rx buffer management */
/* The largest size for a single descriptor as per HW */
#define LIBIE_MAX_RX_BUF_LEN 9728U
/* "True" HW-writeable space: minimum from SW and HW values */
#define LIBIE_RX_BUF_LEN(hr) min_t(u32, LIBETH_RX_PAGE_LEN(hr), \
LIBIE_MAX_RX_BUF_LEN)
/* The maximum frame size as per HW (S/G) */
#define __LIBIE_MAX_RX_FRM_LEN 16382U
/* ATST, HW can chain up to 5 Rx descriptors */
#define LIBIE_MAX_RX_FRM_LEN(hr) \
min_t(u32, __LIBIE_MAX_RX_FRM_LEN, LIBIE_RX_BUF_LEN(hr) * 5)
/* Maximum frame size minus LL overhead */
#define LIBIE_MAX_MTU \
(LIBIE_MAX_RX_FRM_LEN(LIBETH_MAX_HEADROOM) - LIBETH_RX_LL_LEN)
/* O(1) converting i40e/ice/iavf's 8/10-bit hardware packet type to a parsed
* bitfield struct.
*/
#define LIBIE_RX_PT_NUM 154
extern const struct libeth_rx_pt libie_rx_pt_lut[LIBIE_RX_PT_NUM];
/**
* libie_rx_pt_parse - convert HW packet type to software bitfield structure
* @pt: 10-bit hardware packet type value from the descriptor
*
* ```libie_rx_pt_lut``` must be accessed only using this wrapper.
*
* Return: parsed bitfield struct corresponding to the provided ptype.
*/
static inline struct libeth_rx_pt libie_rx_pt_parse(u32 pt)
{
if (unlikely(pt >= LIBIE_RX_PT_NUM))
pt = 0;
return libie_rx_pt_lut[pt];
}
#endif /* __LIBIE_RX_H */