295 lines
8.5 KiB
C
295 lines
8.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (C) 2018-2021, Intel Corporation. */
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#ifndef _ICE_VF_LIB_H_
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#define _ICE_VF_LIB_H_
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#include <linux/types.h>
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#include <linux/hashtable.h>
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#include <linux/bitmap.h>
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#include <linux/mutex.h>
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#include <linux/pci.h>
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#include <net/devlink.h>
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#include <linux/avf/virtchnl.h>
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#include "ice_type.h"
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#include "ice_virtchnl_fdir.h"
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#include "ice_vsi_vlan_ops.h"
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#define ICE_MAX_SRIOV_VFS 256
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/* VF resource constraints */
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#define ICE_MAX_RSS_QS_PER_VF 16
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struct ice_pf;
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struct ice_vf;
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struct ice_virtchnl_ops;
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/* VF capabilities */
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enum ice_virtchnl_cap {
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ICE_VIRTCHNL_VF_CAP_PRIVILEGE = 0,
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};
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/* Specific VF states */
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enum ice_vf_states {
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ICE_VF_STATE_INIT = 0, /* PF is initializing VF */
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ICE_VF_STATE_ACTIVE, /* VF resources are allocated for use */
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ICE_VF_STATE_QS_ENA, /* VF queue(s) enabled */
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ICE_VF_STATE_DIS,
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ICE_VF_STATE_MC_PROMISC,
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ICE_VF_STATE_UC_PROMISC,
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ICE_VF_STATES_NBITS
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};
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struct ice_time_mac {
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unsigned long time_modified;
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u8 addr[ETH_ALEN];
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};
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/* VF MDD events print structure */
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struct ice_mdd_vf_events {
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u16 count; /* total count of Rx|Tx events */
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/* count number of the last printed event */
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u16 last_printed;
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};
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/* VF operations */
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struct ice_vf_ops {
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enum ice_disq_rst_src reset_type;
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void (*free)(struct ice_vf *vf);
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void (*clear_reset_state)(struct ice_vf *vf);
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void (*clear_mbx_register)(struct ice_vf *vf);
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void (*trigger_reset_register)(struct ice_vf *vf, bool is_vflr);
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bool (*poll_reset_status)(struct ice_vf *vf);
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void (*clear_reset_trigger)(struct ice_vf *vf);
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int (*vsi_rebuild)(struct ice_vf *vf);
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void (*post_vsi_rebuild)(struct ice_vf *vf);
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};
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/* Virtchnl/SR-IOV config info */
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struct ice_vfs {
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DECLARE_HASHTABLE(table, 8); /* table of VF entries */
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struct mutex table_lock; /* Lock for protecting the hash table */
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u16 num_supported; /* max supported VFs on this PF */
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u16 num_qps_per; /* number of queue pairs per VF */
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u16 num_msix_per; /* number of MSI-X vectors per VF */
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unsigned long last_printed_mdd_jiffies; /* MDD message rate limit */
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DECLARE_BITMAP(malvfs, ICE_MAX_SRIOV_VFS); /* malicious VF indicator */
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};
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/* VF information structure */
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struct ice_vf {
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struct hlist_node entry;
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struct rcu_head rcu;
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struct kref refcnt;
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struct ice_pf *pf;
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/* Used during virtchnl message handling and NDO ops against the VF
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* that will trigger a VFR
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*/
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struct mutex cfg_lock;
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u16 vf_id; /* VF ID in the PF space */
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u16 lan_vsi_idx; /* index into PF struct */
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u16 ctrl_vsi_idx;
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struct ice_vf_fdir fdir;
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/* first vector index of this VF in the PF space */
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int first_vector_idx;
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struct ice_sw *vf_sw_id; /* switch ID the VF VSIs connect to */
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struct virtchnl_version_info vf_ver;
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u32 driver_caps; /* reported by VF driver */
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struct virtchnl_ether_addr dev_lan_addr;
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struct virtchnl_ether_addr hw_lan_addr;
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struct ice_time_mac legacy_last_added_umac;
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DECLARE_BITMAP(txq_ena, ICE_MAX_RSS_QS_PER_VF);
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DECLARE_BITMAP(rxq_ena, ICE_MAX_RSS_QS_PER_VF);
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struct ice_vlan port_vlan_info; /* Port VLAN ID, QoS, and TPID */
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struct virtchnl_vlan_caps vlan_v2_caps;
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u8 pf_set_mac:1; /* VF MAC address set by VMM admin */
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u8 trusted:1;
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u8 spoofchk:1;
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u8 link_forced:1;
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u8 link_up:1; /* only valid if VF link is forced */
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/* VSI indices - actual VSI pointers are maintained in the PF structure
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* When assigned, these will be non-zero, because VSI 0 is always
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* the main LAN VSI for the PF.
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*/
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u16 lan_vsi_num; /* ID as used by firmware */
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unsigned int min_tx_rate; /* Minimum Tx bandwidth limit in Mbps */
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unsigned int max_tx_rate; /* Maximum Tx bandwidth limit in Mbps */
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DECLARE_BITMAP(vf_states, ICE_VF_STATES_NBITS); /* VF runtime states */
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unsigned long vf_caps; /* VF's adv. capabilities */
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u8 num_req_qs; /* num of queue pairs requested by VF */
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u16 num_mac;
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u16 num_vf_qs; /* num of queue configured per VF */
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struct ice_mdd_vf_events mdd_rx_events;
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struct ice_mdd_vf_events mdd_tx_events;
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DECLARE_BITMAP(opcodes_allowlist, VIRTCHNL_OP_MAX);
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struct ice_repr *repr;
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const struct ice_virtchnl_ops *virtchnl_ops;
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const struct ice_vf_ops *vf_ops;
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/* devlink port data */
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struct devlink_port devlink_port;
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};
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/* Flags for controlling behavior of ice_reset_vf */
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enum ice_vf_reset_flags {
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ICE_VF_RESET_VFLR = BIT(0), /* Indicate a VFLR reset */
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ICE_VF_RESET_NOTIFY = BIT(1), /* Notify VF prior to reset */
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ICE_VF_RESET_LOCK = BIT(2), /* Acquire the VF cfg_lock */
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};
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static inline u16 ice_vf_get_port_vlan_id(struct ice_vf *vf)
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{
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return vf->port_vlan_info.vid;
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}
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static inline u8 ice_vf_get_port_vlan_prio(struct ice_vf *vf)
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{
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return vf->port_vlan_info.prio;
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}
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static inline bool ice_vf_is_port_vlan_ena(struct ice_vf *vf)
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{
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return (ice_vf_get_port_vlan_id(vf) || ice_vf_get_port_vlan_prio(vf));
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}
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static inline u16 ice_vf_get_port_vlan_tpid(struct ice_vf *vf)
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{
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return vf->port_vlan_info.tpid;
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}
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/* VF Hash Table access functions
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*
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* These functions provide abstraction for interacting with the VF hash table.
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* In general, direct access to the hash table should be avoided outside of
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* these functions where possible.
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*
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* The VF entries in the hash table are protected by reference counting to
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* track lifetime of accesses from the table. The ice_get_vf_by_id() function
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* obtains a reference to the VF structure which must be dropped by using
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* ice_put_vf().
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*/
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/**
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* ice_for_each_vf - Iterate over each VF entry
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* @pf: pointer to the PF private structure
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* @bkt: bucket index used for iteration
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* @vf: pointer to the VF entry currently being processed in the loop
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*
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* The bkt variable is an unsigned integer iterator used to traverse the VF
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* entries. It is *not* guaranteed to be the VF's vf_id. Do not assume it is.
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* Use vf->vf_id to get the id number if needed.
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*
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* The caller is expected to be under the table_lock mutex for the entire
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* loop. Use this iterator if your loop is long or if it might sleep.
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*/
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#define ice_for_each_vf(pf, bkt, vf) \
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hash_for_each((pf)->vfs.table, (bkt), (vf), entry)
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/**
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* ice_for_each_vf_rcu - Iterate over each VF entry protected by RCU
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* @pf: pointer to the PF private structure
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* @bkt: bucket index used for iteration
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* @vf: pointer to the VF entry currently being processed in the loop
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*
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* The bkt variable is an unsigned integer iterator used to traverse the VF
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* entries. It is *not* guaranteed to be the VF's vf_id. Do not assume it is.
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* Use vf->vf_id to get the id number if needed.
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*
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* The caller is expected to be under rcu_read_lock() for the entire loop.
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* Only use this iterator if your loop is short and you can guarantee it does
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* not sleep.
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*/
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#define ice_for_each_vf_rcu(pf, bkt, vf) \
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hash_for_each_rcu((pf)->vfs.table, (bkt), (vf), entry)
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#ifdef CONFIG_PCI_IOV
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struct ice_vf *ice_get_vf_by_id(struct ice_pf *pf, u16 vf_id);
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void ice_put_vf(struct ice_vf *vf);
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bool ice_has_vfs(struct ice_pf *pf);
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u16 ice_get_num_vfs(struct ice_pf *pf);
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struct ice_vsi *ice_get_vf_vsi(struct ice_vf *vf);
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bool ice_is_vf_disabled(struct ice_vf *vf);
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int ice_check_vf_ready_for_cfg(struct ice_vf *vf);
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void ice_set_vf_state_dis(struct ice_vf *vf);
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bool ice_is_any_vf_in_unicast_promisc(struct ice_pf *pf);
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void
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ice_vf_get_promisc_masks(struct ice_vf *vf, struct ice_vsi *vsi,
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u8 *ucast_m, u8 *mcast_m);
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int
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ice_vf_set_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m);
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int
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ice_vf_clear_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m);
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int ice_reset_vf(struct ice_vf *vf, u32 flags);
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void ice_reset_all_vfs(struct ice_pf *pf);
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#else /* CONFIG_PCI_IOV */
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static inline struct ice_vf *ice_get_vf_by_id(struct ice_pf *pf, u16 vf_id)
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{
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return NULL;
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}
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static inline void ice_put_vf(struct ice_vf *vf)
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{
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}
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static inline bool ice_has_vfs(struct ice_pf *pf)
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{
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return false;
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}
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static inline u16 ice_get_num_vfs(struct ice_pf *pf)
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{
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return 0;
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}
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static inline struct ice_vsi *ice_get_vf_vsi(struct ice_vf *vf)
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{
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return NULL;
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}
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static inline bool ice_is_vf_disabled(struct ice_vf *vf)
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{
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return true;
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}
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static inline int ice_check_vf_ready_for_cfg(struct ice_vf *vf)
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{
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return -EOPNOTSUPP;
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}
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static inline void ice_set_vf_state_dis(struct ice_vf *vf)
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{
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}
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static inline bool ice_is_any_vf_in_unicast_promisc(struct ice_pf *pf)
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{
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return false;
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}
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static inline int
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ice_vf_set_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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ice_vf_clear_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m)
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{
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return -EOPNOTSUPP;
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}
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static inline int ice_reset_vf(struct ice_vf *vf, u32 flags)
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{
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return 0;
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}
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static inline void ice_reset_all_vfs(struct ice_pf *pf)
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{
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}
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#endif /* !CONFIG_PCI_IOV */
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#endif /* _ICE_VF_LIB_H_ */
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