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/* SPDX-License-Identifier: BSD-3-Clause */
/* Copyright (c) 2025, Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file ice_iov.h
* @brief header for IOV functionality
*
* This header includes definitions used to implement device Virtual Functions
* for the ice driver.
*/
#ifndef _ICE_IOV_H_
#define _ICE_IOV_H_
#include <sys/types.h>
#include <sys/bitstring.h>
#include <sys/bus.h>
#include <sys/nv.h>
#include <sys/iov_schema.h>
#include <sys/param.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pci_iov.h>
#include "ice_iflib.h"
#include "ice_vf_mbx.h"
/**
* @enum ice_vf_flags
* @brief VF state flags
*
* Used to indicate the status of a PF's VF, as well as indicating what each VF
* is capabile of. Intended to be modified only using atomic operations, so
* they can be read and modified in places that aren't locked.
*
* Used in struct ice_vf's vf_flags field.
*/
enum ice_vf_flags {
VF_FLAG_ENABLED = BIT(0),
VF_FLAG_SET_MAC_CAP = BIT(1),
VF_FLAG_VLAN_CAP = BIT(2),
VF_FLAG_PROMISC_CAP = BIT(3),
VF_FLAG_MAC_ANTI_SPOOF = BIT(4),
VF_FLAG_INITIALIZED = BIT(5),
VF_FLAG_REBUILD_REQUIRED = BIT(6),
VF_FLAG_RESET_FAILED = BIT(7),
VF_FLAG_MDD_BLOCKED = BIT(8),
VF_FLAG_MBX_BLOCKED = BIT(9),
};
struct ice_vf_mac_filter {
u8 addr[ETHER_ADDR_LEN];
};
/**
* @struct ice_vf
* @brief PF's VF software context
*
* Represents the state and options for a VF spawned from a PF.
*/
struct ice_vf {
struct ice_vsi *vsi;
u32 vf_flags;
u8 mac[ETHER_ADDR_LEN];
u16 vf_num;
struct virtchnl_version_info version;
u16 mac_filter_limit;
u16 mac_filter_cnt;
struct ice_vf_mac_filter *mac_filters;
u16 vlan_limit;
u16 vlan_cnt;
#define ICE_VF_VLAN_MAP_LEN (EVL_VLID_MASK + 1)
bitstr_t bit_decl(vlans_map, ICE_VF_VLAN_MAP_LEN);
u16 num_irq_vectors;
u16 *vf_imap;
struct ice_irq_vector *tx_irqvs;
struct ice_irq_vector *rx_irqvs;
/* VF-relative queue state, indexed by virtchnl queue ID. */
u32 txq_configured;
u32 rxq_configured;
u32 rxq_enabled;
u64 mdd_tx_events;
u64 mdd_rx_events;
struct ice_mbx_vf_info mbx_info;
u64 mbx_overflow_events;
struct timeval last_mdd_log;
};
#define ICE_PCIE_DEV_STATUS 0xAA
#define ICE_PCI_CIAD_WAIT_COUNT 100
#define ICE_PCI_CIAD_WAIT_DELAY_US 1
#define ICE_VPGEN_VFRSTAT_WAIT_COUNT 100
#define ICE_VPGEN_VFRSTAT_WAIT_DELAY_US 20
#define ICE_VIRTCHNL_VALID_PROMISC_FLAGS (FLAG_VF_UNICAST_PROMISC | \
FLAG_VF_MULTICAST_PROMISC)
#define ICE_DEFAULT_VF_VLAN_LIMIT 64
#define ICE_DEFAULT_VF_FILTER_LIMIT 16
int ice_iov_attach(struct ice_softc *sc);
int ice_iov_detach(struct ice_softc *sc);
int ice_iov_init(struct ice_softc *sc, uint16_t num_vfs, const nvlist_t *params);
int ice_iov_add_vf(struct ice_softc *sc, uint16_t vfnum, const nvlist_t *params);
int ice_iov_rebuild_vf(struct ice_softc *sc, struct ice_vsi *vsi);
struct if_vf_status;
int ice_iov_vf_status(struct ice_softc *sc, struct if_vf_status **statusp);
void ice_iov_uninit(struct ice_softc *sc);
void ice_iov_handle_vflr(struct ice_softc *sc);
u32 ice_iov_handle_mdd(struct ice_softc *sc);
void ice_iov_notify_vfs_reset(struct ice_softc *sc);
int ice_iov_quiesce_vfs_for_reset(struct ice_softc *sc);
void ice_iov_reconfigure_mbx(struct ice_softc *sc);
void ice_vc_handle_vf_msg(struct ice_softc *sc, struct ice_rq_event_info *event,
struct ice_mbx_data *mbx_data);
void ice_vc_notify_all_vfs_link_state(struct ice_softc *sc);
#endif /* _ICE_IOV_H_ */
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