FreeBSD/Linux Kernel Cross Reference
sys/dev/qlnx/qlnxe/ecore_cxt.h

     /*
      * Copyright (c) 2017-2018 Cavium, Inc. 
      * 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.
     *
     *  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.
     *
     * $FreeBSD$
     *
     */
    
    #ifndef _ECORE_CID_
    #define _ECORE_CID_
    
    #include "ecore_hsi_common.h"
    #include "ecore_proto_if.h"
    #include "ecore_cxt_api.h"
    
    /* Tasks segments definitions  */
    #define ECORE_CXT_ISCSI_TID_SEG                 PROTOCOLID_ISCSI        /* 0 */
    #define ECORE_CXT_FCOE_TID_SEG                  PROTOCOLID_FCOE         /* 1 */
    #define ECORE_CXT_ROCE_TID_SEG                  PROTOCOLID_ROCE         /* 2 */
    
    enum ecore_cxt_elem_type {
            ECORE_ELEM_CXT,
            ECORE_ELEM_SRQ,
            ECORE_ELEM_TASK,
            ECORE_ELEM_XRC_SRQ,
    };
    
    enum ilt_clients {
            ILT_CLI_CDUC,
            ILT_CLI_CDUT,
            ILT_CLI_QM,
            ILT_CLI_TM,
            ILT_CLI_SRC,
            ILT_CLI_TSDM,
            ILT_CLI_MAX
    };
    
    u32 ecore_cxt_get_proto_cid_count(struct ecore_hwfn *p_hwfn,
                                      enum protocol_type type,
                                      u32 *vf_cid);
    
    u32 ecore_cxt_get_proto_tid_count(struct ecore_hwfn *p_hwfn,
                                      enum protocol_type type);
    
    u32 ecore_cxt_get_proto_cid_start(struct ecore_hwfn *p_hwfn,
                                      enum protocol_type type);
    
    u32 ecore_cxt_get_srq_count(struct ecore_hwfn *p_hwfn);
    
    u32 ecore_cxt_get_xrc_srq_count(struct ecore_hwfn *p_hwfn);
    
    /**
     * @brief ecore_cxt_set_pf_params - Set the PF params for cxt init
     *
     * @param p_hwfn
     *
     * @return enum _ecore_status_t
     */
    enum _ecore_status_t ecore_cxt_set_pf_params(struct ecore_hwfn *p_hwfn,
                                                 u32 rdma_tasks);
    
    /**
     * @brief ecore_cxt_cfg_ilt_compute - compute ILT init parameters
     *
     * @param p_hwfn
     * @param last_line
     *
     * @return enum _ecore_status_t
     */
    enum _ecore_status_t ecore_cxt_cfg_ilt_compute(struct ecore_hwfn *p_hwfn,
                                                   u32 *last_line);
    
    /**
     * @brief ecore_cxt_cfg_ilt_compute_excess - how many lines can be decreased
     *
     * @param p_hwfn
     * @param used_lines
    */
   u32 ecore_cxt_cfg_ilt_compute_excess(struct ecore_hwfn *p_hwfn, u32 used_lines);
   
   /**
    * @brief ecore_cxt_mngr_alloc - Allocate and init the context manager struct
    *
    * @param p_hwfn
    *
    * @return enum _ecore_status_t
    */
   enum _ecore_status_t ecore_cxt_mngr_alloc(struct ecore_hwfn *p_hwfn);
   
   /**
    * @brief ecore_cxt_mngr_free
    *
    * @param p_hwfn
    */
   void ecore_cxt_mngr_free(struct ecore_hwfn *p_hwfn);
   
   /**
    * @brief ecore_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map
    *
    * @param p_hwfn
    *
    * @return enum _ecore_status_t
    */
   enum _ecore_status_t ecore_cxt_tables_alloc(struct ecore_hwfn *p_hwfn);
   
   /**
    * @brief ecore_cxt_mngr_setup - Reset the acquired CIDs
    *
    * @param p_hwfn
    */
   void ecore_cxt_mngr_setup(struct ecore_hwfn *p_hwfn);
   
   /**
    * @brief ecore_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path.
    *
    * @param p_hwfn
    */
   void ecore_cxt_hw_init_common(struct ecore_hwfn *p_hwfn);
   
   /**
    * @brief ecore_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path.
    *
    * @param p_hwfn
    * @param p_ptt
    */
   void ecore_cxt_hw_init_pf(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt);
   
   /**
    * @brief ecore_qm_init_pf - Initailze the QM PF phase, per path
    *
    * @param p_hwfn
    * @param p_ptt
    * @param is_pf_loading
    */
   void ecore_qm_init_pf(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
                         bool is_pf_loading);
   
    /**
    * @brief Reconfigures QM pf on the fly
    *
    * @param p_hwfn
    * @param p_ptt
    *
    * @return enum _ecore_status_t
    */
   enum _ecore_status_t ecore_qm_reconf(struct ecore_hwfn *p_hwfn,
                                        struct ecore_ptt *p_ptt);
   
   #define ECORE_CXT_PF_CID (0xff)
   
   /**
    * @brief ecore_cxt_release - Release a cid
    *
    * @param p_hwfn
    * @param cid
    */
   void ecore_cxt_release_cid(struct ecore_hwfn *p_hwfn, u32 cid);
   
   /**
    * @brief ecore_cxt_release - Release a cid belonging to a vf-queue
    *
    * @param p_hwfn
    * @param cid
    * @param vfid - engine relative index. ECORE_CXT_PF_CID if belongs to PF
    */
   void _ecore_cxt_release_cid(struct ecore_hwfn *p_hwfn,
                               u32 cid, u8 vfid);
   
   /**
    * @brief ecore_cxt_acquire - Acquire a new cid of a specific protocol type
    *
    * @param p_hwfn
    * @param type
    * @param p_cid
    *
    * @return enum _ecore_status_t
    */
   enum _ecore_status_t ecore_cxt_acquire_cid(struct ecore_hwfn *p_hwfn,
                                              enum protocol_type type,
                                              u32 *p_cid);
   
   /**
    * @brief _ecore_cxt_acquire - Acquire a new cid of a specific protocol type
    *                             for a vf-queue
    *
    * @param p_hwfn
    * @param type
    * @param p_cid
    * @param vfid - engine relative index. ECORE_CXT_PF_CID if belongs to PF
    *
    * @return enum _ecore_status_t
    */
   enum _ecore_status_t _ecore_cxt_acquire_cid(struct ecore_hwfn *p_hwfn,
                                               enum protocol_type type,
                                               u32 *p_cid, u8 vfid);
   
   /**
    * @brief ecore_cxt_get_tid_mem_info - function checks if the
    *        page containing the iid in the ilt is already
    *        allocated, if it is not it allocates the page.
    *
    * @param p_hwfn
    * @param elem_type
    * @param iid
    *
    * @return enum _ecore_status_t
    */
   enum _ecore_status_t
   ecore_cxt_dynamic_ilt_alloc(struct ecore_hwfn *p_hwfn,
                               enum ecore_cxt_elem_type elem_type,
                               u32 iid);
   
   /**
    * @brief ecore_cxt_free_ilt_range - function frees ilt pages
    *        associated with the protocol and element type passed.
    *
    * @param p_hwfn
    * @param proto
    *
    * @return enum _ecore_status_t
    */
   enum _ecore_status_t
   ecore_cxt_free_ilt_range(struct ecore_hwfn *p_hwfn,
                            enum ecore_cxt_elem_type elem_type,
                            u32 start_iid, u32 count);
   
   #define ECORE_CTX_WORKING_MEM 0
   #define ECORE_CTX_FL_MEM 1
   enum _ecore_status_t ecore_cxt_get_task_ctx(struct ecore_hwfn *p_hwfn,
                                               u32 tid,
                                               u8 ctx_type,
                                               void **task_ctx);
   
   u32 ecore_cxt_get_ilt_page_size(struct ecore_hwfn *p_hwfn,
                                   enum ilt_clients ilt_client);
   
   u32 ecore_cxt_get_total_srq_count(struct ecore_hwfn *p_hwfn);
   
   #endif /* _ECORE_CID_ */

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