368 lines
8.3 KiB
C
368 lines
8.3 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
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/* QLogic qed NIC Driver
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* Copyright (c) 2015-2017 QLogic Corporation
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* Copyright (c) 2019-2020 Marvell International Ltd.
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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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* qed_cxt_get_cid_info(): Returns the context info for a specific cidi.
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*
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* @p_hwfn: HW device data.
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* @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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* qed_cxt_get_tid_mem_info(): Returns the tid mem info.
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*
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* @p_hwfn: HW device data.
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* @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_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_TCP_ULP_TID_SEG PROTOCOLID_TCP_ULP
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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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QED_ELEM_XRC_SRQ,
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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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* qed_cxt_set_pf_params(): Set the PF params for cxt init.
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*
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* @p_hwfn: HW device data.
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* @rdma_tasks: Requested maximum.
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*
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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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* qed_cxt_cfg_ilt_compute(): Compute ILT init parameters.
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*
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* @p_hwfn: HW device data.
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* @last_line: 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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* qed_cxt_cfg_ilt_compute_excess(): How many lines can be decreased.
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*
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* @p_hwfn: HW device data.
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* @used_lines: Used lines.
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*
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* Return: Int.
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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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* qed_cxt_mngr_alloc(): Allocate and init the context manager struct.
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*
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* @p_hwfn: HW device data.
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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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* qed_cxt_mngr_free() - Context manager free.
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*
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* @p_hwfn: HW device data.
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*
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* Return: Void.
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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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* qed_cxt_tables_alloc(): Allocate ILT shadow, Searcher T2, acquired map.
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*
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* @p_hwfn: HW device data.
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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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* qed_cxt_mngr_setup(): Reset the acquired CIDs.
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*
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* @p_hwfn: HW device data.
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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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* qed_cxt_hw_init_common(): Initailze ILT and DQ, common phase, per path.
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*
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* @p_hwfn: HW device data.
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*
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* Return: Void.
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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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* qed_cxt_hw_init_pf(): Initailze ILT and DQ, PF phase, per path.
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*
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* @p_hwfn: HW device data.
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* @p_ptt: P_ptt.
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*
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* Return: Void.
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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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* qed_qm_init_pf(): Initailze the QM PF phase, per path.
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*
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* @p_hwfn: HW device data.
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* @p_ptt: P_ptt.
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* @is_pf_loading: Is pf pending.
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*
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* Return: Void.
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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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* qed_qm_reconf(): Reconfigures QM pf on the fly.
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*
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* @p_hwfn: HW device data.
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* @p_ptt: 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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* qed_cxt_release_cid(): Release a cid.
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*
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* @p_hwfn: HW device data.
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* @cid: Cid.
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*
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* Return: Void.
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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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* _qed_cxt_release_cid(): Release a cid belonging to a vf-queue.
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*
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* @p_hwfn: HW device data.
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* @cid: Cid.
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* @vfid: Engine relative index. QED_CXT_PF_CID if belongs to PF.
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*
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* Return: Void.
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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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* qed_cxt_acquire_cid(): Acquire a new cid of a specific protocol type.
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*
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* @p_hwfn: HW device data.
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* @type: Type.
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* @p_cid: Pointer 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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* _qed_cxt_acquire_cid(): 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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* @p_hwfn: HW device data.
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* @type: Type.
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* @p_cid: Pointer cid.
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* @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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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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/* Max number of connection types in HW (DQ/CDU etc.) */
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#define MAX_CONN_TYPES PROTOCOLID_COMMON
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#define NUM_TASK_TYPES 2
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#define NUM_TASK_PF_SEGMENTS 4
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#define NUM_TASK_VF_SEGMENTS 1
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/* PF per protocl configuration object */
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#define TASK_SEGMENTS (NUM_TASK_PF_SEGMENTS + NUM_TASK_VF_SEGMENTS)
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#define TASK_SEGMENT_VF (NUM_TASK_PF_SEGMENTS)
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struct qed_tid_seg {
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u32 count;
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u8 type;
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bool has_fl_mem;
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};
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struct qed_conn_type_cfg {
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u32 cid_count;
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u32 cids_per_vf;
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struct qed_tid_seg tid_seg[TASK_SEGMENTS];
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};
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/* ILT Client configuration,
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* Per connection type (protocol) resources (cids, tis, vf cids etc.)
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* 1 - for connection context (CDUC) and for each task context we need two
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* values, for regular task context and for force load memory
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*/
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#define ILT_CLI_PF_BLOCKS (1 + NUM_TASK_PF_SEGMENTS * 2)
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#define ILT_CLI_VF_BLOCKS (1 + NUM_TASK_VF_SEGMENTS * 2)
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#define CDUC_BLK (0)
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#define SRQ_BLK (0)
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#define CDUT_SEG_BLK(n) (1 + (u8)(n))
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#define CDUT_FL_SEG_BLK(n, X) (1 + (n) + NUM_TASK_ ## X ## _SEGMENTS)
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struct ilt_cfg_pair {
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u32 reg;
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u32 val;
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};
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struct qed_ilt_cli_blk {
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u32 total_size; /* 0 means not active */
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u32 real_size_in_page;
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u32 start_line;
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u32 dynamic_line_offset;
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u32 dynamic_line_cnt;
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};
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struct qed_ilt_client_cfg {
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bool active;
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/* ILT boundaries */
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struct ilt_cfg_pair first;
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struct ilt_cfg_pair last;
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struct ilt_cfg_pair p_size;
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/* ILT client blocks for PF */
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struct qed_ilt_cli_blk pf_blks[ILT_CLI_PF_BLOCKS];
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u32 pf_total_lines;
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/* ILT client blocks for VFs */
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struct qed_ilt_cli_blk vf_blks[ILT_CLI_VF_BLOCKS];
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u32 vf_total_lines;
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};
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struct qed_cid_acquired_map {
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u32 start_cid;
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u32 max_count;
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unsigned long *cid_map;
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};
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struct qed_src_t2 {
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struct phys_mem_desc *dma_mem;
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u32 num_pages;
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u64 first_free;
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u64 last_free;
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};
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struct qed_cxt_mngr {
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/* Per protocl configuration */
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struct qed_conn_type_cfg conn_cfg[MAX_CONN_TYPES];
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/* computed ILT structure */
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struct qed_ilt_client_cfg clients[MAX_ILT_CLIENTS];
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/* Task type sizes */
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u32 task_type_size[NUM_TASK_TYPES];
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/* total number of VFs for this hwfn -
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* ALL VFs are symmetric in terms of HW resources
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*/
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u32 vf_count;
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u32 first_vf_in_pf;
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/* Acquired CIDs */
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struct qed_cid_acquired_map acquired[MAX_CONN_TYPES];
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struct qed_cid_acquired_map
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acquired_vf[MAX_CONN_TYPES][MAX_NUM_VFS];
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/* ILT shadow table */
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struct phys_mem_desc *ilt_shadow;
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u32 ilt_shadow_size;
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u32 pf_start_line;
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/* Mutex for a dynamic ILT allocation */
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struct mutex mutex;
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/* SRC T2 */
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struct qed_src_t2 src_t2;
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/* total number of SRQ's for this hwfn */
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u32 srq_count;
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u32 xrc_srq_count;
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/* Maximal number of L2 steering filters */
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u32 arfs_count;
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u16 iscsi_task_pages;
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u16 fcoe_task_pages;
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u16 roce_task_pages;
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u16 eth_task_pages;
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u16 task_ctx_size;
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u16 conn_ctx_size;
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};
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u16 qed_get_cdut_num_pf_init_pages(struct qed_hwfn *p_hwfn);
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u16 qed_get_cdut_num_vf_init_pages(struct qed_hwfn *p_hwfn);
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u16 qed_get_cdut_num_pf_work_pages(struct qed_hwfn *p_hwfn);
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u16 qed_get_cdut_num_vf_work_pages(struct qed_hwfn *p_hwfn);
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u32 qed_cxt_get_ilt_page_size(struct qed_hwfn *p_hwfn,
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enum ilt_clients ilt_client);
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u32 qed_cxt_get_total_srq_count(struct qed_hwfn *p_hwfn);
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#endif
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