Quelle idpf.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2023 Intel Corporation */
#ifndef _IDPF_H_
#define _IDPF_H_
/* Forward declaration */
struct idpf_adapter;
struct idpf_vport;
struct idpf_vport_max_q;
#include <net/pkt_sched.h>
#include <linux/aer.h>
#include <linux/etherdevice.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/bitfield.h>
#include <linux/sctp.h>
#include <linux/ethtool_netlink.h>
#include <net/gro.h>
#include <linux/net/intel/iidc_rdma.h>
#include <linux/net/intel/iidc_rdma_idpf.h>
#include "virtchnl2.h"
#include "idpf_txrx.h"
#include "idpf_controlq.h"
#define GETMAXVAL(num_bits) GENMASK((num_bits) - 1 , 0 )
#define IDPF_NO_FREE_SLOT 0 xffff
/* Default Mailbox settings */
#define IDPF_NUM_FILTERS_PER_MSG 20
#define IDPF_NUM_DFLT_MBX_Q 2 /* includes both TX and RX */
#define IDPF_DFLT_MBX_Q_LEN 64
#define IDPF_DFLT_MBX_ID -1
/* maximum number of times to try before resetting mailbox */
#define IDPF_MB_MAX_ERR 20
#define IDPF_NUM_CHUNKS_PER_MSG(struct_sz, chunk_sz) \
((IDPF_CTLQ_MAX_BUF_LEN - (struct_sz)) / (chunk_sz))
#define IDPF_MAX_WAIT 500
/* available message levels */
#define IDPF_AVAIL_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
#define IDPF_DIM_PROFILE_SLOTS 5
#define IDPF_VIRTCHNL_VERSION_MAJOR VIRTCHNL2_VERSION_MAJOR_2
#define IDPF_VIRTCHNL_VERSION_MINOR VIRTCHNL2_VERSION_MINOR_0
/**
* struct idpf_mac_filter
* @ list : list member field
* @ macaddr : MAC address
* @ remove : filter should be removed ( virtchnl )
* @ add : filter should be added ( virtchnl )
*/
struct idpf_mac_filter {
struct list_head list;
u8 macaddr[ETH_ALEN];
bool remove;
bool add;
};
/**
* enum idpf_state - State machine to handle bring up
* @ _ _ IDPF_VER_CHECK : Negotiate virtchnl version
* @ _ _ IDPF_GET_CAPS : Negotiate capabilities
* @ _ _ IDPF_INIT_SW : Init based on given capabilities
* @ _ _ IDPF_STATE_LAST : Must be last , used to determine size
*/
enum idpf_state {
__IDPF_VER_CHECK,
__IDPF_GET_CAPS,
__IDPF_INIT_SW,
__IDPF_STATE_LAST,
};
/**
* enum idpf_flags - Hard reset causes .
* @ IDPF_HR_FUNC_RESET : Hard reset when TxRx timeout
* @ IDPF_HR_DRV_LOAD : Set on driver load for a clean HW
* @ IDPF_HR_RESET_IN_PROG : Reset in progress
* @ IDPF_REMOVE_IN_PROG : Driver remove in progress
* @ IDPF_MB_INTR_MODE : Mailbox in interrupt mode
* @ IDPF_VC_CORE_INIT : virtchnl core has been init
* @ IDPF_FLAGS_NBITS : Must be last
*/
enum idpf_flags {
IDPF_HR_FUNC_RESET,
IDPF_HR_DRV_LOAD,
IDPF_HR_RESET_IN_PROG,
IDPF_REMOVE_IN_PROG,
IDPF_MB_INTR_MODE,
IDPF_VC_CORE_INIT,
IDPF_FLAGS_NBITS,
};
/**
* enum idpf_cap_field - Offsets into capabilities struct for specific caps
* @ IDPF_BASE_CAPS : generic base capabilities
* @ IDPF_CSUM_CAPS : checksum offload capabilities
* @ IDPF_SEG_CAPS : segmentation offload capabilities
* @ IDPF_RSS_CAPS : RSS offload capabilities
* @ IDPF_HSPLIT_CAPS : Header split capabilities
* @ IDPF_RSC_CAPS : RSC offload capabilities
* @ IDPF_OTHER_CAPS : miscellaneous offloads
*
* Used when checking for a specific capability flag since different capability
* sets are not mutually exclusive numerically , the caller must specify which
* type of capability they are checking for .
*/
enum idpf_cap_field {
IDPF_BASE_CAPS = -1 ,
IDPF_CSUM_CAPS = offsetof(struct virtchnl2_get_capabilities,
csum_caps),
IDPF_SEG_CAPS = offsetof(struct virtchnl2_get_capabilities,
seg_caps),
IDPF_RSS_CAPS = offsetof(struct virtchnl2_get_capabilities,
rss_caps),
IDPF_HSPLIT_CAPS = offsetof(struct virtchnl2_get_capabilities,
hsplit_caps),
IDPF_RSC_CAPS = offsetof(struct virtchnl2_get_capabilities,
rsc_caps),
IDPF_OTHER_CAPS = offsetof(struct virtchnl2_get_capabilities,
other_caps),
};
/**
* enum idpf_vport_state - Current vport state
* @ _ _ IDPF_VPORT_DOWN : Vport is down
* @ _ _ IDPF_VPORT_UP : Vport is up
* @ _ _ IDPF_VPORT_STATE_LAST : Must be last , number of states
*/
enum idpf_vport_state {
__IDPF_VPORT_DOWN,
__IDPF_VPORT_UP,
__IDPF_VPORT_STATE_LAST,
};
/**
* struct idpf_netdev_priv - Struct to store vport back pointer
* @ adapter : Adapter back pointer
* @ vport : Vport back pointer
* @ vport_id : Vport identifier
* @ link_speed_mbps : Link speed in mbps
* @ vport_idx : Relative vport index
* @ max_tx_hdr_size : Max header length hardware can support
* @ tx_max_bufs : Max buffers that can be transmitted with scatter - gather
* @ state : See enum idpf_vport_state
* @ netstats : Packet and byte stats
* @ stats_lock : Lock to protect stats update
*/
struct idpf_netdev_priv {
struct idpf_adapter *adapter;
struct idpf_vport *vport;
u32 vport_id;
u32 link_speed_mbps;
u16 vport_idx;
u16 max_tx_hdr_size;
u16 tx_max_bufs;
enum idpf_vport_state state;
struct rtnl_link_stats64 netstats;
spinlock_t stats_lock;
};
/**
* struct idpf_reset_reg - Reset register offsets / masks
* @ rstat : Reset status register
* @ rstat_m : Reset status mask
*/
struct idpf_reset_reg {
void __iomem *rstat;
u32 rstat_m;
};
/**
* struct idpf_vport_max_q - Queue limits
* @ max_rxq : Maximum number of RX queues supported
* @ max_txq : Maixmum number of TX queues supported
* @ max_bufq : In splitq , maximum number of buffer queues supported
* @ max_complq : In splitq , maximum number of completion queues supported
*/
struct idpf_vport_max_q {
u16 max_rxq;
u16 max_txq;
u16 max_bufq;
u16 max_complq;
};
/**
* struct idpf_reg_ops - Device specific register operation function pointers
* @ ctlq_reg_init : Mailbox control queue register initialization
* @ intr_reg_init : Traffic interrupt register initialization
* @ mb_intr_reg_init : Mailbox interrupt register initialization
* @ reset_reg_init : Reset register initialization
* @ trigger_reset : Trigger a reset to occur
* @ ptp_reg_init : PTP register initialization
*/
struct idpf_reg_ops {
void (*ctlq_reg_init)(struct idpf_adapter *adapter,
struct idpf_ctlq_create_info *cq);
int (*intr_reg_init)(struct idpf_vport *vport);
void (*mb_intr_reg_init)(struct idpf_adapter *adapter);
void (*reset_reg_init)(struct idpf_adapter *adapter);
void (*trigger_reset)(struct idpf_adapter *adapter,
enum idpf_flags trig_cause);
void (*ptp_reg_init)(const struct idpf_adapter *adapter);
};
#define IDPF_MMIO_REG_NUM_STATIC 2
#define IDPF_PF_MBX_REGION_SZ 4096
#define IDPF_PF_RSTAT_REGION_SZ 2048
#define IDPF_VF_MBX_REGION_SZ 10240
#define IDPF_VF_RSTAT_REGION_SZ 2048
/**
* struct idpf_dev_ops - Device specific operations
* @ reg_ops : Register operations
* @ idc_init : IDC initialization
* @ static_reg_info : array of mailbox and rstat register info
*/
struct idpf_dev_ops {
struct idpf_reg_ops reg_ops;
int (*idc_init)(struct idpf_adapter *adapter);
/* static_reg_info[0] is mailbox region, static_reg_info[1] is rstat */
struct resource static_reg_info[IDPF_MMIO_REG_NUM_STATIC];
};
/**
* enum idpf_vport_reset_cause - Vport soft reset causes
* @ IDPF_SR_Q_CHANGE : Soft reset queue change
* @ IDPF_SR_Q_DESC_CHANGE : Soft reset descriptor change
* @ IDPF_SR_MTU_CHANGE : Soft reset MTU change
* @ IDPF_SR_RSC_CHANGE : Soft reset RSC change
*/
enum idpf_vport_reset_cause {
IDPF_SR_Q_CHANGE,
IDPF_SR_Q_DESC_CHANGE,
IDPF_SR_MTU_CHANGE,
IDPF_SR_RSC_CHANGE,
};
/**
* enum idpf_vport_flags - Vport flags
* @ IDPF_VPORT_DEL_QUEUES : To send delete queues message
* @ IDPF_VPORT_SW_MARKER : Indicate TX pipe drain software marker packets
* processing is done
* @ IDPF_VPORT_FLAGS_NBITS : Must be last
*/
enum idpf_vport_flags {
IDPF_VPORT_DEL_QUEUES,
IDPF_VPORT_SW_MARKER,
IDPF_VPORT_FLAGS_NBITS,
};
struct idpf_port_stats {
struct u64_stats_sync stats_sync;
u64_stats_t rx_hw_csum_err;
u64_stats_t rx_hsplit;
u64_stats_t rx_hsplit_hbo;
u64_stats_t rx_bad_descs;
u64_stats_t tx_linearize;
u64_stats_t tx_busy;
u64_stats_t tx_drops;
u64_stats_t tx_dma_map_errs;
struct virtchnl2_vport_stats vport_stats;
};
struct idpf_fsteer_fltr {
struct list_head list;
u32 loc;
u32 q_index;
};
/**
* struct idpf_vport - Handle for netdevices and queue resources
* @ num_txq : Number of allocated TX queues
* @ num_complq : Number of allocated completion queues
* @ txq_desc_count : TX queue descriptor count
* @ complq_desc_count : Completion queue descriptor count
* @ compln_clean_budget : Work budget for completion clean
* @ num_txq_grp : Number of TX queue groups
* @ txq_grps : Array of TX queue groups
* @ txq_model : Split queue or single queue queuing model
* @ txqs : Used only in hotpath to get to the right queue very fast
* @ crc_enable : Enable CRC insertion offload
* @ num_rxq : Number of allocated RX queues
* @ num_bufq : Number of allocated buffer queues
* @ rxq_desc_count : RX queue descriptor count . * MUST * have enough descriptors
* to complete all buffer descriptors for all buffer queues in
* the worst case .
* @ num_bufqs_per_qgrp : Buffer queues per RX queue in a given grouping
* @ bufq_desc_count : Buffer queue descriptor count
* @ num_rxq_grp : Number of RX queues in a group
* @ rxq_grps : Total number of RX groups . Number of groups * number of RX per
* group will yield total number of RX queues .
* @ rxq_model : Splitq queue or single queue queuing model
* @ rx_ptype_lkup : Lookup table for ptypes on RX
* @ vdev_info : IDC vport device info pointer
* @ adapter : back pointer to associated adapter
* @ netdev : Associated net_device . Each vport should have one and only one
* associated netdev .
* @ flags : See enum idpf_vport_flags
* @ vport_type : Default SRIOV , SIOV , etc .
* @ vport_id : Device given vport identifier
* @ idx : Software index in adapter vports struct
* @ default_vport : Use this vport if one isn ' t specified
* @ base_rxd : True if the driver should use base descriptors instead of flex
* @ num_q_vectors : Number of IRQ vectors allocated
* @ q_vectors : Array of queue vectors
* @ q_vector_idxs : Starting index of queue vectors
* @ max_mtu : device given max possible MTU
* @ default_mac_addr : device will give a default MAC to use
* @ rx_itr_profile : RX profiles for Dynamic Interrupt Moderation
* @ tx_itr_profile : TX profiles for Dynamic Interrupt Moderation
* @ port_stats : per port csum , header split , and other offload stats
* @ link_up : True if link is up
* @ sw_marker_wq : workqueue for marker packets
* @ tx_tstamp_caps : Capabilities negotiated for Tx timestamping
* @ tstamp_config : The Tx tstamp config
* @ tstamp_task : Tx timestamping task
*/
struct idpf_vport {
u16 num_txq;
u16 num_complq;
u32 txq_desc_count;
u32 complq_desc_count;
u32 compln_clean_budget;
u16 num_txq_grp;
struct idpf_txq_group *txq_grps;
u32 txq_model;
struct idpf_tx_queue **txqs;
bool crc_enable;
u16 num_rxq;
u16 num_bufq;
u32 rxq_desc_count;
u8 num_bufqs_per_qgrp;
u32 bufq_desc_count[IDPF_MAX_BUFQS_PER_RXQ_GRP];
u16 num_rxq_grp;
struct idpf_rxq_group *rxq_grps;
u32 rxq_model;
struct libeth_rx_pt *rx_ptype_lkup;
struct iidc_rdma_vport_dev_info *vdev_info;
struct idpf_adapter *adapter;
struct net_device *netdev;
DECLARE_BITMAP(flags, IDPF_VPORT_FLAGS_NBITS);
u16 vport_type;
u32 vport_id;
u16 idx;
bool default_vport;
bool base_rxd;
u16 num_q_vectors;
struct idpf_q_vector *q_vectors;
u16 *q_vector_idxs;
u16 max_mtu;
u8 default_mac_addr[ETH_ALEN];
u16 rx_itr_profile[IDPF_DIM_PROFILE_SLOTS];
u16 tx_itr_profile[IDPF_DIM_PROFILE_SLOTS];
struct idpf_port_stats port_stats;
bool link_up;
wait_queue_head_t sw_marker_wq;
struct idpf_ptp_vport_tx_tstamp_caps *tx_tstamp_caps;
struct kernel_hwtstamp_config tstamp_config;
struct work_struct tstamp_task;
};
/**
* enum idpf_user_flags
* @ _ _ IDPF_USER_FLAG_HSPLIT : header split state
* @ _ _ IDPF_PROMISC_UC : Unicast promiscuous mode
* @ _ _ IDPF_PROMISC_MC : Multicast promiscuous mode
* @ _ _ IDPF_USER_FLAGS_NBITS : Must be last
*/
enum idpf_user_flags {
__IDPF_USER_FLAG_HSPLIT = 0 U,
__IDPF_PROMISC_UC = 32 ,
__IDPF_PROMISC_MC,
__IDPF_USER_FLAGS_NBITS,
};
/**
* struct idpf_rss_data - Associated RSS data
* @ rss_key_size : Size of RSS hash key
* @ rss_key : RSS hash key
* @ rss_lut_size : Size of RSS lookup table
* @ rss_lut : RSS lookup table
* @ cached_lut : Used to restore previously init RSS lut
*/
struct idpf_rss_data {
u16 rss_key_size;
u8 *rss_key;
u16 rss_lut_size;
u32 *rss_lut;
u32 *cached_lut;
};
/**
* struct idpf_q_coalesce - User defined coalescing configuration values for
* a single queue .
* @ tx_intr_mode : Dynamic TX ITR or not
* @ rx_intr_mode : Dynamic RX ITR or not
* @ tx_coalesce_usecs : TX interrupt throttling rate
* @ rx_coalesce_usecs : RX interrupt throttling rate
*
* Used to restore user coalescing configuration after a reset .
*/
struct idpf_q_coalesce {
u32 tx_intr_mode;
u32 rx_intr_mode;
u32 tx_coalesce_usecs;
u32 rx_coalesce_usecs;
};
/**
* struct idpf_vport_user_config_data - User defined configuration values for
* each vport .
* @ rss_data : See struct idpf_rss_data
* @ q_coalesce : Array of per queue coalescing data
* @ num_req_tx_qs : Number of user requested TX queues through ethtool
* @ num_req_rx_qs : Number of user requested RX queues through ethtool
* @ num_req_txq_desc : Number of user requested TX queue descriptors through
* ethtool
* @ num_req_rxq_desc : Number of user requested RX queue descriptors through
* ethtool
* @ user_flags : User toggled config flags
* @ mac_filter_list : List of MAC filters
* @ num_fsteer_fltrs : number of flow steering filters
* @ flow_steer_list : list of flow steering filters
*
* Used to restore configuration after a reset as the vport will get wiped .
*/
struct idpf_vport_user_config_data {
struct idpf_rss_data rss_data;
struct idpf_q_coalesce *q_coalesce;
u16 num_req_tx_qs;
u16 num_req_rx_qs;
u32 num_req_txq_desc;
u32 num_req_rxq_desc;
DECLARE_BITMAP(user_flags, __IDPF_USER_FLAGS_NBITS);
struct list_head mac_filter_list;
u32 num_fsteer_fltrs;
struct list_head flow_steer_list;
};
/**
* enum idpf_vport_config_flags - Vport config flags
* @ IDPF_VPORT_REG_NETDEV : Register netdev
* @ IDPF_VPORT_UP_REQUESTED : Set if interface up is requested on core reset
* @ IDPF_VPORT_CONFIG_FLAGS_NBITS : Must be last
*/
enum idpf_vport_config_flags {
IDPF_VPORT_REG_NETDEV,
IDPF_VPORT_UP_REQUESTED,
IDPF_VPORT_CONFIG_FLAGS_NBITS,
};
/**
* struct idpf_avail_queue_info
* @ avail_rxq : Available RX queues
* @ avail_txq : Available TX queues
* @ avail_bufq : Available buffer queues
* @ avail_complq : Available completion queues
*
* Maintain total queues available after allocating max queues to each vport .
*/
struct idpf_avail_queue_info {
u16 avail_rxq;
u16 avail_txq;
u16 avail_bufq;
u16 avail_complq;
};
/**
* struct idpf_vector_info - Utility structure to pass function arguments as a
* structure
* @ num_req_vecs : Vectors required based on the number of queues updated by the
* user via ethtool
* @ num_curr_vecs : Current number of vectors , must be > = @ num_req_vecs
* @ index : Relative starting index for vectors
* @ default_vport : Vectors are for default vport
*/
struct idpf_vector_info {
u16 num_req_vecs;
u16 num_curr_vecs;
u16 index;
bool default_vport;
};
/**
* struct idpf_vector_lifo - Stack to maintain vector indexes used for vector
* distribution algorithm
* @ top : Points to stack top i . e . next available vector index
* @ base : Always points to start of the free pool
* @ size : Total size of the vector stack
* @ vec_idx : Array to store all the vector indexes
*
* Vector stack maintains all the relative vector indexes at the * adapter *
* level . This stack is divided into 2 parts , first one is called as ' default
* pool ' and other one is called ' free pool ' . Vector distribution algorithm
* gives priority to default vports in a way that at least IDPF_MIN_Q_VEC
* vectors are allocated per default vport and the relative vector indexes for
* those are maintained in default pool . Free pool contains all the unallocated
* vector indexes which can be allocated on - demand basis . Mailbox vector index
* is maintained in the default pool of the stack .
*/
struct idpf_vector_lifo {
u16 top;
u16 base;
u16 size;
u16 *vec_idx;
};
/**
* struct idpf_vport_config - Vport configuration data
* @ user_config : see struct idpf_vport_user_config_data
* @ max_q : Maximum possible queues
* @ req_qs_chunks : Queue chunk data for requested queues
* @ mac_filter_list_lock : Lock to protect mac filters
* @ flags : See enum idpf_vport_config_flags
*/
struct idpf_vport_config {
struct idpf_vport_user_config_data user_config;
struct idpf_vport_max_q max_q;
struct virtchnl2_add_queues *req_qs_chunks;
spinlock_t mac_filter_list_lock;
DECLARE_BITMAP(flags, IDPF_VPORT_CONFIG_FLAGS_NBITS);
};
struct idpf_vc_xn_manager;
#define idpf_for_each_vport(adapter, iter) \
for (struct idpf_vport **__## iter = &(adapter)->vports[0 ], \
*iter = (adapter)->max_vports ? *__## iter : NULL; \
iter; \
iter = (++__## iter) < &(adapter)->vports[(adapter)->max_vports] ? \
*__## iter : NULL)
/**
* struct idpf_adapter - Device data struct generated on probe
* @ pdev : PCI device struct given on probe
* @ virt_ver_maj : Virtchnl version major
* @ virt_ver_min : Virtchnl version minor
* @ msg_enable : Debug message level enabled
* @ mb_wait_count : Number of times mailbox was attempted initialization
* @ state : Init state machine
* @ flags : See enum idpf_flags
* @ reset_reg : See struct idpf_reset_reg
* @ hw : Device access data
* @ num_avail_msix : Available number of MSIX vectors
* @ num_msix_entries : Number of entries in MSIX table
* @ msix_entries : MSIX table
* @ num_rdma_msix_entries : Available number of MSIX vectors for RDMA
* @ rdma_msix_entries : RDMA MSIX table
* @ req_vec_chunks : Requested vector chunk data
* @ mb_vector : Mailbox vector data
* @ vector_stack : Stack to store the msix vector indexes
* @ irq_mb_handler : Handler for hard interrupt for mailbox
* @ tx_timeout_count : Number of TX timeouts that have occurred
* @ avail_queues : Device given queue limits
* @ vports : Array to store vports created by the driver
* @ netdevs : Associated Vport netdevs
* @ vport_params_reqd : Vport params requested
* @ vport_params_recvd : Vport params received
* @ vport_ids : Array of device given vport identifiers
* @ vport_config : Vport config parameters
* @ max_vports : Maximum vports that can be allocated
* @ num_alloc_vports : Current number of vports allocated
* @ next_vport : Next free slot in pf - > vport [ ] - 0 - based !
* @ init_task : Initialization task
* @ init_wq : Workqueue for initialization task
* @ serv_task : Periodically recurring maintenance task
* @ serv_wq : Workqueue for service task
* @ mbx_task : Task to handle mailbox interrupts
* @ mbx_wq : Workqueue for mailbox responses
* @ vc_event_task : Task to handle out of band virtchnl event notifications
* @ vc_event_wq : Workqueue for virtchnl events
* @ stats_task : Periodic statistics retrieval task
* @ stats_wq : Workqueue for statistics task
* @ caps : Negotiated capabilities with device
* @ vcxn_mngr : Virtchnl transaction manager
* @ dev_ops : See idpf_dev_ops
* @ cdev_info : IDC core device info pointer
* @ num_vfs : Number of allocated VFs through sysfs . PF does not directly talk
* to VFs but is used to initialize them
* @ crc_enable : Enable CRC insertion offload
* @ req_tx_splitq : TX split or single queue model to request
* @ req_rx_splitq : RX split or single queue model to request
* @ vport_ctrl_lock : Lock to protect the vport control flow
* @ vector_lock : Lock to protect vector distribution
* @ queue_lock : Lock to protect queue distribution
* @ vc_buf_lock : Lock to protect virtchnl buffer
* @ ptp : Storage for PTP - related data
*/
struct idpf_adapter {
struct pci_dev *pdev;
u32 virt_ver_maj;
u32 virt_ver_min;
u32 msg_enable;
u32 mb_wait_count;
enum idpf_state state;
DECLARE_BITMAP(flags, IDPF_FLAGS_NBITS);
struct idpf_reset_reg reset_reg;
struct idpf_hw hw;
u16 num_avail_msix;
u16 num_msix_entries;
struct msix_entry *msix_entries;
u16 num_rdma_msix_entries;
struct msix_entry *rdma_msix_entries;
struct virtchnl2_alloc_vectors *req_vec_chunks;
struct idpf_q_vector mb_vector;
struct idpf_vector_lifo vector_stack;
irqreturn_t (*irq_mb_handler)(int irq, void *data);
u32 tx_timeout_count;
struct idpf_avail_queue_info avail_queues;
struct idpf_vport **vports;
struct net_device **netdevs;
struct virtchnl2_create_vport **vport_params_reqd;
struct virtchnl2_create_vport **vport_params_recvd;
u32 *vport_ids;
struct idpf_vport_config **vport_config;
u16 max_vports;
u16 num_alloc_vports;
u16 next_vport;
struct delayed_work init_task;
struct workqueue_struct *init_wq;
struct delayed_work serv_task;
struct workqueue_struct *serv_wq;
struct delayed_work mbx_task;
struct workqueue_struct *mbx_wq;
struct delayed_work vc_event_task;
struct workqueue_struct *vc_event_wq;
struct delayed_work stats_task;
struct workqueue_struct *stats_wq;
struct virtchnl2_get_capabilities caps;
struct idpf_vc_xn_manager *vcxn_mngr;
struct idpf_dev_ops dev_ops;
struct iidc_rdma_core_dev_info *cdev_info;
int num_vfs;
bool crc_enable;
bool req_tx_splitq;
bool req_rx_splitq;
struct mutex vport_ctrl_lock;
struct mutex vector_lock;
struct mutex queue_lock;
struct mutex vc_buf_lock;
struct idpf_ptp *ptp;
};
/**
* idpf_is_queue_model_split - check if queue model is split
* @ q_model : queue model single or split
*
* Returns true if queue model is split else false
*/
static inline int idpf_is_queue_model_split(u16 q_model)
{
return !IS_ENABLED(CONFIG_IDPF_SINGLEQ) ||
q_model == VIRTCHNL2_QUEUE_MODEL_SPLIT;
}
#define idpf_is_cap_ena(adapter, field, flag) \
idpf_is_capability_ena(adapter, false , field, flag)
#define idpf_is_cap_ena_all(adapter, field, flag) \
idpf_is_capability_ena(adapter, true , field, flag)
bool idpf_is_capability_ena(struct idpf_adapter *adapter, bool all,
enum idpf_cap_field field, u64 flag);
/**
* idpf_is_rdma_cap_ena - Determine if RDMA is supported
* @ adapter : private data struct
*
* Return : true if RDMA capability is enabled , false otherwise
*/
static inline bool idpf_is_rdma_cap_ena(struct idpf_adapter *adapter)
{
return idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_RDMA);
}
#define IDPF_CAP_RSS (\
VIRTCHNL2_FLOW_IPV4_TCP |\
VIRTCHNL2_FLOW_IPV4_TCP |\
VIRTCHNL2_FLOW_IPV4_UDP |\
VIRTCHNL2_FLOW_IPV4_SCTP |\
VIRTCHNL2_FLOW_IPV4_OTHER |\
VIRTCHNL2_FLOW_IPV6_TCP |\
VIRTCHNL2_FLOW_IPV6_TCP |\
VIRTCHNL2_FLOW_IPV6_UDP |\
VIRTCHNL2_FLOW_IPV6_SCTP |\
VIRTCHNL2_FLOW_IPV6_OTHER)
#define IDPF_CAP_RSC (\
VIRTCHNL2_CAP_RSC_IPV4_TCP |\
VIRTCHNL2_CAP_RSC_IPV6_TCP)
#define IDPF_CAP_HSPLIT (\
VIRTCHNL2_CAP_RX_HSPLIT_AT_L4V4 |\
VIRTCHNL2_CAP_RX_HSPLIT_AT_L4V6)
#define IDPF_CAP_TX_CSUM_L4V4 (\
VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_TCP |\
VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_UDP)
#define IDPF_CAP_TX_CSUM_L4V6 (\
VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_TCP |\
VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_UDP)
#define IDPF_CAP_RX_CSUM (\
VIRTCHNL2_CAP_RX_CSUM_L3_IPV4 |\
VIRTCHNL2_CAP_RX_CSUM_L4_IPV4_TCP |\
VIRTCHNL2_CAP_RX_CSUM_L4_IPV4_UDP |\
VIRTCHNL2_CAP_RX_CSUM_L4_IPV6_TCP |\
VIRTCHNL2_CAP_RX_CSUM_L4_IPV6_UDP)
#define IDPF_CAP_TX_SCTP_CSUM (\
VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_SCTP |\
VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_SCTP)
#define IDPF_CAP_TUNNEL_TX_CSUM (\
VIRTCHNL2_CAP_TX_CSUM_L3_SINGLE_TUNNEL |\
VIRTCHNL2_CAP_TX_CSUM_L4_SINGLE_TUNNEL)
/**
* idpf_get_reserved_vecs - Get reserved vectors
* @ adapter : private data struct
*/
static inline u16 idpf_get_reserved_vecs(struct idpf_adapter *adapter)
{
return le16_to_cpu(adapter->caps.num_allocated_vectors);
}
/**
* idpf_get_reserved_rdma_vecs - Get reserved RDMA vectors
* @ adapter : private data struct
*
* Return : number of vectors reserved for RDMA
*/
static inline u16 idpf_get_reserved_rdma_vecs(struct idpf_adapter *adapter)
{
return le16_to_cpu(adapter->caps.num_rdma_allocated_vectors);
}
/**
* idpf_get_default_vports - Get default number of vports
* @ adapter : private data struct
*/
static inline u16 idpf_get_default_vports(struct idpf_adapter *adapter)
{
return le16_to_cpu(adapter->caps.default_num_vports);
}
/**
* idpf_get_max_vports - Get max number of vports
* @ adapter : private data struct
*/
static inline u16 idpf_get_max_vports(struct idpf_adapter *adapter)
{
return le16_to_cpu(adapter->caps.max_vports);
}
/**
* idpf_get_max_tx_bufs - Get max scatter - gather buffers supported by the device
* @ adapter : private data struct
*/
static inline unsigned int idpf_get_max_tx_bufs(struct idpf_adapter *adapter)
{
return adapter->caps.max_sg_bufs_per_tx_pkt;
}
/**
* idpf_get_min_tx_pkt_len - Get min packet length supported by the device
* @ adapter : private data struct
*/
static inline u8 idpf_get_min_tx_pkt_len(struct idpf_adapter *adapter)
{
u8 pkt_len = adapter->caps.min_sso_packet_len;
return pkt_len ? pkt_len : IDPF_TX_MIN_PKT_LEN;
}
/**
* idpf_get_mbx_reg_addr - Get BAR0 mailbox register address
* @ adapter : private data struct
* @ reg_offset : register offset value
*
* Return : BAR0 mailbox register address based on register offset .
*/
static inline void __iomem *idpf_get_mbx_reg_addr(struct idpf_adapter *adapter,
resource_size_t reg_offset)
{
return adapter->hw.mbx.vaddr + reg_offset;
}
/**
* idpf_get_rstat_reg_addr - Get BAR0 rstat register address
* @ adapter : private data struct
* @ reg_offset : register offset value
*
* Return : BAR0 rstat register address based on register offset .
*/
static inline void __iomem *idpf_get_rstat_reg_addr(struct idpf_adapter *adapter,
resource_size_t reg_offset)
{
reg_offset -= adapter->dev_ops.static_reg_info[1 ].start;
return adapter->hw.rstat.vaddr + reg_offset;
}
/**
* idpf_get_reg_addr - Get BAR0 register address
* @ adapter : private data struct
* @ reg_offset : register offset value
*
* Based on the register offset , return the actual BAR0 register address
*/
static inline void __iomem *idpf_get_reg_addr(struct idpf_adapter *adapter,
resource_size_t reg_offset)
{
struct idpf_hw *hw = &adapter->hw;
for (int i = 0 ; i < hw->num_lan_regs; i++) {
struct idpf_mmio_reg *region = &hw->lan_regs[i];
if (reg_offset >= region->addr_start &&
reg_offset < (region->addr_start + region->addr_len)) {
/* Convert the offset so that it is relative to the
* start of the region . Then add the base address of
* the region to get the final address .
*/
reg_offset -= region->addr_start;
return region->vaddr + reg_offset;
}
}
/* It's impossible to hit this case with offsets from the CP. But if we
* do for any other reason , the kernel will panic on that register
* access . Might as well do it here to make it clear what ' s happening .
*/
BUG();
return NULL;
}
/**
* idpf_is_reset_detected - check if we were reset at some point
* @ adapter : driver specific private structure
*
* Returns true if we are either in reset currently or were previously reset .
*/
static inline bool idpf_is_reset_detected(struct idpf_adapter *adapter)
{
if (!adapter->hw.arq)
return true ;
return !(readl(idpf_get_mbx_reg_addr(adapter, adapter->hw.arq->reg.len)) &
adapter->hw.arq->reg.len_mask);
}
/**
* idpf_is_reset_in_prog - check if reset is in progress
* @ adapter : driver specific private structure
*
* Returns true if hard reset is in progress , false otherwise
*/
static inline bool idpf_is_reset_in_prog(struct idpf_adapter *adapter)
{
return (test_bit(IDPF_HR_RESET_IN_PROG, adapter->flags) ||
test_bit(IDPF_HR_FUNC_RESET, adapter->flags) ||
test_bit(IDPF_HR_DRV_LOAD, adapter->flags));
}
/**
* idpf_netdev_to_vport - get a vport handle from a netdev
* @ netdev : network interface device structure
*/
static inline struct idpf_vport *idpf_netdev_to_vport(struct net_device *netdev)
{
struct idpf_netdev_priv *np = netdev_priv(netdev);
return np->vport;
}
/**
* idpf_netdev_to_adapter - Get adapter handle from a netdev
* @ netdev : Network interface device structure
*/
static inline struct idpf_adapter *idpf_netdev_to_adapter(struct net_device *netdev)
{
struct idpf_netdev_priv *np = netdev_priv(netdev);
return np->adapter;
}
/**
* idpf_is_feature_ena - Determine if a particular feature is enabled
* @ vport : Vport to check
* @ feature : Netdev flag to check
*
* Returns true or false if a particular feature is enabled .
*/
static inline bool idpf_is_feature_ena(const struct idpf_vport *vport,
netdev_features_t feature)
{
return vport->netdev->features & feature;
}
/**
* idpf_get_max_tx_hdr_size - - get the size of tx header
* @ adapter : Driver specific private structure
*/
static inline u16 idpf_get_max_tx_hdr_size(struct idpf_adapter *adapter)
{
return le16_to_cpu(adapter->caps.max_tx_hdr_size);
}
/**
* idpf_vport_ctrl_lock - Acquire the vport control lock
* @ netdev : Network interface device structure
*
* This lock should be used by non - datapath code to protect against vport
* destruction .
*/
static inline void idpf_vport_ctrl_lock(struct net_device *netdev)
{
struct idpf_netdev_priv *np = netdev_priv(netdev);
mutex_lock(&np->adapter->vport_ctrl_lock);
}
/**
* idpf_vport_ctrl_unlock - Release the vport control lock
* @ netdev : Network interface device structure
*/
static inline void idpf_vport_ctrl_unlock(struct net_device *netdev)
{
struct idpf_netdev_priv *np = netdev_priv(netdev);
mutex_unlock(&np->adapter->vport_ctrl_lock);
}
void idpf_statistics_task(struct work_struct *work);
void idpf_init_task(struct work_struct *work);
void idpf_service_task(struct work_struct *work);
void idpf_mbx_task(struct work_struct *work);
void idpf_vc_event_task(struct work_struct *work);
void idpf_dev_ops_init(struct idpf_adapter *adapter);
void idpf_vf_dev_ops_init(struct idpf_adapter *adapter);
int idpf_intr_req(struct idpf_adapter *adapter);
void idpf_intr_rel(struct idpf_adapter *adapter);
u16 idpf_get_max_tx_hdr_size(struct idpf_adapter *adapter);
int idpf_initiate_soft_reset(struct idpf_vport *vport,
enum idpf_vport_reset_cause reset_cause);
void idpf_deinit_task(struct idpf_adapter *adapter);
int idpf_req_rel_vector_indexes(struct idpf_adapter *adapter,
u16 *q_vector_idxs,
struct idpf_vector_info *vec_info);
void idpf_set_ethtool_ops(struct net_device *netdev);
void idpf_vport_intr_write_itr(struct idpf_q_vector *q_vector,
u16 itr, bool tx);
int idpf_sriov_configure(struct pci_dev *pdev, int num_vfs);
u8 idpf_vport_get_hsplit(const struct idpf_vport *vport);
bool idpf_vport_set_hsplit(const struct idpf_vport *vport, u8 val);
int idpf_idc_init(struct idpf_adapter *adapter);
int idpf_idc_init_aux_core_dev(struct idpf_adapter *adapter,
enum iidc_function_type ftype);
void idpf_idc_deinit_core_aux_device(struct iidc_rdma_core_dev_info *cdev_info);
void idpf_idc_deinit_vport_aux_device(struct iidc_rdma_vport_dev_info *vdev_info);
void idpf_idc_issue_reset_event(struct iidc_rdma_core_dev_info *cdev_info);
void idpf_idc_vdev_mtu_event(struct iidc_rdma_vport_dev_info *vdev_info,
enum iidc_rdma_event_type event_type);
int idpf_add_del_fsteer_filters(struct idpf_adapter *adapter,
struct virtchnl2_flow_rule_add_del *rule,
enum virtchnl2_op opcode);
#endif /* !_IDPF_H_ */
Messung V0.5 in Prozent C=95 H=99 G=96
¤ Dauer der Verarbeitung: 0.21 Sekunden
(vorverarbeitet am 2026-10-03)
¤
*© Formatika GbR, Deutschland
2026-10-11
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