246 lines
6.0 KiB
C
246 lines
6.0 KiB
C
/* QLogic qed NIC Driver
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* Copyright (c) 2015-2017 QLogic Corporation
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and /or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _QED_CXT_H
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#define _QED_CXT_H
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/qed/qed_if.h>
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#include "qed_hsi.h"
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#include "qed.h"
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struct qed_cxt_info {
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void *p_cxt;
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u32 iid;
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enum protocol_type type;
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};
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#define MAX_TID_BLOCKS 512
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struct qed_tid_mem {
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u32 tid_size;
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u32 num_tids_per_block;
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u32 waste;
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u8 *blocks[MAX_TID_BLOCKS]; /* 4K */
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};
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/**
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* @brief qedo_cid_get_cxt_info - Returns the context info for a specific cid
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*
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*
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* @param p_hwfn
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* @param p_info in/out
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*
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* @return int
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*/
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int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn,
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struct qed_cxt_info *p_info);
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/**
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* @brief qed_cxt_get_tid_mem_info
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*
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* @param p_hwfn
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* @param p_info
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*
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* @return int
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*/
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int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
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struct qed_tid_mem *p_info);
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#define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI
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#define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE
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#define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE
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enum qed_cxt_elem_type {
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QED_ELEM_CXT,
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QED_ELEM_SRQ,
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QED_ELEM_TASK
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};
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u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn,
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enum protocol_type type, u32 *vf_cid);
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/**
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* @brief qed_cxt_set_pf_params - Set the PF params for cxt init
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*
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* @param p_hwfn
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* @param rdma_tasks - requested maximum
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* @return int
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*/
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int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn, u32 rdma_tasks);
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/**
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* @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters
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*
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* @param p_hwfn
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* @param last_line
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*
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* @return int
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*/
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int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn, u32 *last_line);
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/**
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* @brief qed_cxt_cfg_ilt_compute_excess - how many lines can be decreased
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*
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* @param p_hwfn
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* @param used_lines
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*/
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u32 qed_cxt_cfg_ilt_compute_excess(struct qed_hwfn *p_hwfn, u32 used_lines);
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/**
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* @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct
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*
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* @param p_hwfn
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*
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* @return int
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*/
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int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_cxt_mngr_free
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*
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* @param p_hwfn
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*/
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void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map
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*
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* @param p_hwfn
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*
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* @return int
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*/
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int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_cxt_mngr_setup - Reset the acquired CIDs
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*
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* @param p_hwfn
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*/
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void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path.
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*
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*
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*
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* @param p_hwfn
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*/
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void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path.
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*
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* @param p_hwfn
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* @param p_ptt
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*/
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void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
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/**
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* @brief qed_qm_init_pf - Initailze the QM PF phase, per path
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*
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* @param p_hwfn
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* @param p_ptt
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* @param is_pf_loading
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*/
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void qed_qm_init_pf(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt, bool is_pf_loading);
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/**
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* @brief Reconfigures QM pf on the fly
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*
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* @param p_hwfn
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* @param p_ptt
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*
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* @return int
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*/
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int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
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#define QED_CXT_PF_CID (0xff)
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/**
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* @brief qed_cxt_release - Release a cid
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*
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* @param p_hwfn
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* @param cid
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*/
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void qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid);
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/**
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* @brief qed_cxt_release - Release a cid belonging to a vf-queue
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*
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* @param p_hwfn
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* @param cid
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* @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF
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*/
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void _qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid, u8 vfid);
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/**
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* @brief qed_cxt_acquire - Acquire a new cid of a specific protocol type
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*
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* @param p_hwfn
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* @param type
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* @param p_cid
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*
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* @return int
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*/
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int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
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enum protocol_type type, u32 *p_cid);
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/**
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* @brief _qed_cxt_acquire - Acquire a new cid of a specific protocol type
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* for a vf-queue
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*
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* @param p_hwfn
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* @param type
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* @param p_cid
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* @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF
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*
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* @return int
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*/
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int _qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
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enum protocol_type type, u32 *p_cid, u8 vfid);
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int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn,
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enum qed_cxt_elem_type elem_type, u32 iid);
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u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn,
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enum protocol_type type);
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u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn,
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enum protocol_type type);
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u32 qed_cxt_get_srq_count(struct qed_hwfn *p_hwfn);
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int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto);
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#define QED_CTX_WORKING_MEM 0
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#define QED_CTX_FL_MEM 1
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int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
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u32 tid, u8 ctx_type, void **task_ctx);
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#endif
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