FreeBSD/Linux Kernel Cross Reference
sys/dev/ice/ice_rdma_internal.h

     /* SPDX-License-Identifier: BSD-3-Clause */
     /*  Copyright (c) 2022, Intel Corporation
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    /*$FreeBSD$*/
    
    /**
     * @file ice_rdma_internal.h
     * @brief internal header for the RMDA driver interface setup
     *
     * Contains the definitions and functions used by the ice driver to setup the
     * RDMA driver interface. Functions and definitions in this file are not
     * shared with the RDMA client driver.
     */
    #ifndef _ICE_RDMA_INTERNAL_H_
    #define _ICE_RDMA_INTERNAL_H_
    
    #include "ice_rdma.h"
    
    /* Forward declare the softc structure */
    struct ice_softc;
    
    /* Global sysctl variable indicating if the RDMA client interface is enabled */
    extern bool ice_enable_irdma;
    
    /**
     * @struct ice_rdma_entry
     * @brief RDMA peer list node
     *
     * Structure used to store peer entries for each PF in a linked list.
     */
    struct ice_rdma_entry {
            LIST_ENTRY(ice_rdma_entry) node;
            struct ice_rdma_peer peer;
            bool attached;
            bool initiated;
    };
    
    #define ice_rdma_peer_to_entry(p) __containerof(p, struct ice_rdma_entry, peer)
    #define ice_rdma_entry_to_sc(e) __containerof(e, struct ice_softc, rdma_entry)
    #define ice_rdma_peer_to_sc(p) ice_rdma_entry_to_sc(ice_rdma_peer_to_entry(p))
    
    /**
     * @struct ice_rdma_peers
     * @brief Head list structure for the RDMA entry list
     *
     * Type defining the head of the linked list of RDMA entries.
     */
    LIST_HEAD(ice_rdma_peers, ice_rdma_entry);
    
    /**
     * @struct ice_rdma_state
     * @brief global driver state for RDMA
     *
     * Contains global state shared across all PFs by the device driver, such as
     * the kobject class of the currently connected peer driver, and the linked
     * list of peer entries for each PF.
     */
    struct ice_rdma_state {
            bool registered;
            kobj_class_t peer_class;
            struct sx mtx;
            struct ice_rdma_peers peers;
    };
    
    void ice_rdma_init(void);
    void ice_rdma_exit(void);
    
    int  ice_rdma_pf_attach(struct ice_softc *sc);
    void ice_rdma_pf_detach(struct ice_softc *sc);
    int  ice_rdma_pf_init(struct ice_softc *sc);
    int  ice_rdma_pf_stop(struct ice_softc *sc);
    void ice_rdma_link_change(struct ice_softc *sc, int linkstate, uint64_t baudrate);
   void ice_rdma_notify_dcb_qos_change(struct ice_softc *sc);
   void ice_rdma_dcb_qos_update(struct ice_softc *sc, struct ice_port_info *pi);
   #endif

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