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https://github.com/freebsd/freebsd-src
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015f8cc5b0
Signed-off-by: Eric Joyner <erj@FreeBSD.org> MFC after: 3 days Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D44003
121 lines
4.3 KiB
C
121 lines
4.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause */
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/* Copyright (c) 2024, Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file ice_rdma_internal.h
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* @brief internal header for the RMDA driver interface setup
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*
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* Contains the definitions and functions used by the ice driver to setup the
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* RDMA driver interface. Functions and definitions in this file are not
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* shared with the RDMA client driver.
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*/
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#ifndef _ICE_RDMA_INTERNAL_H_
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#define _ICE_RDMA_INTERNAL_H_
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#include "ice_rdma.h"
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/* Forward declare the softc structure */
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struct ice_softc;
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/* Global sysctl variable indicating if the RDMA client interface is enabled */
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extern bool ice_enable_irdma;
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/**
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* @struct ice_rdma_entry
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* @brief RDMA peer list node
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*
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* Structure used to store peer entries for each PF in a linked list.
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* @var ice_rdma_entry::attached
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* check for irdma driver attached
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* @var ice_rdma_entry::initiated
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* check for irdma driver ready to use
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* @var ice_rdma_entry::node
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* list node of the RDMA entry
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* @var ice_rdma_entry::peer
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* pointer to peer
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*/
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struct ice_rdma_entry {
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LIST_ENTRY(ice_rdma_entry) node;
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struct ice_rdma_peer peer;
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bool attached;
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bool initiated;
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};
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#define ice_rdma_peer_to_entry(p) __containerof(p, struct ice_rdma_entry, peer)
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#define ice_rdma_entry_to_sc(e) __containerof(e, struct ice_softc, rdma_entry)
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#define ice_rdma_peer_to_sc(p) ice_rdma_entry_to_sc(ice_rdma_peer_to_entry(p))
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/**
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* @struct ice_rdma_peers
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* @brief Head list structure for the RDMA entry list
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*
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* Type defining the head of the linked list of RDMA entries.
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*/
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LIST_HEAD(ice_rdma_peers, ice_rdma_entry);
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/**
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* @struct ice_rdma_state
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* @brief global driver state for RDMA
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*
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* Contains global state shared across all PFs by the device driver, such as
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* the kobject class of the currently connected peer driver, and the linked
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* list of peer entries for each PF.
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*
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* @var ice_rdma_state::registered
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* check forr irdma driver registered
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* @var ice_rdma_state::peer_class
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* kobject class for irdma driver
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* @var ice_rdma_state::mtx
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* mutex for protecting irdma operations
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* @var ice_rdma_state::peers
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* list of RDMA entries
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*/
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struct ice_rdma_state {
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bool registered;
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kobj_class_t peer_class;
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struct sx mtx;
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struct ice_rdma_peers peers;
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};
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void ice_rdma_init(void);
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void ice_rdma_exit(void);
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int ice_rdma_pf_attach(struct ice_softc *sc);
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void ice_rdma_pf_detach(struct ice_softc *sc);
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int ice_rdma_pf_init(struct ice_softc *sc);
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int ice_rdma_pf_stop(struct ice_softc *sc);
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void ice_rdma_link_change(struct ice_softc *sc, int linkstate, uint64_t baudrate);
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void ice_rdma_notify_dcb_qos_change(struct ice_softc *sc);
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void ice_rdma_dcb_qos_update(struct ice_softc *sc, struct ice_port_info *pi);
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void ice_rdma_notify_pe_intr(struct ice_softc *sc, uint32_t oicr);
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void ice_rdma_notify_reset(struct ice_softc *sc);
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#endif
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