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/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
/* QLogic qed NIC Driver
* Copyright (c) 2015-2017 QLogic Corporation
* Copyright (c) 2019-2020 Marvell International Ltd.
*/
#ifndef _QED_CXT_H
#define _QED_CXT_H
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/qed/qed_if.h>
#include "qed_hsi.h"
#include "qed.h"
struct qed_cxt_info {
void *p_cxt;
u32 iid;
enum protocol_type type;
};
#define MAX_TID_BLOCKS 512
struct qed_tid_mem {
u32 tid_size;
u32 num_tids_per_block;
u32 waste;
u8 *blocks[MAX_TID_BLOCKS]; /* 4K */
};
/**
* @brief qedo_cid_get_cxt_info - Returns the context info for a specific cid
*
*
* @param p_hwfn
* @param p_info in/out
*
* @return int
*/
int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn,
struct qed_cxt_info *p_info);
/**
* @brief qed_cxt_get_tid_mem_info
*
* @param p_hwfn
* @param p_info
*
* @return int
*/
int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
struct qed_tid_mem *p_info);
#define QED_CXT_TCP_ULP_TID_SEG PROTOCOLID_TCP_ULP
#define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE
#define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE
enum qed_cxt_elem_type {
QED_ELEM_CXT,
QED_ELEM_SRQ,
QED_ELEM_TASK,
QED_ELEM_XRC_SRQ,
};
u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn,
enum protocol_type type, u32 *vf_cid);
/**
* @brief qed_cxt_set_pf_params - Set the PF params for cxt init
*
* @param p_hwfn
* @param rdma_tasks - requested maximum
* @return int
*/
int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn, u32 rdma_tasks);
/**
* @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters
*
* @param p_hwfn
* @param last_line
*
* @return int
*/
int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn, u32 *last_line);
/**
* @brief qed_cxt_cfg_ilt_compute_excess - how many lines can be decreased
*
* @param p_hwfn
* @param used_lines
*/
u32 qed_cxt_cfg_ilt_compute_excess(struct qed_hwfn *p_hwfn, u32 used_lines);
/**
* @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct
*
* @param p_hwfn
*
* @return int
*/
int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn);
/**
* @brief qed_cxt_mngr_free
*
* @param p_hwfn
*/
void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn);
/**
* @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map
*
* @param p_hwfn
*
* @return int
*/
int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn);
/**
* @brief qed_cxt_mngr_setup - Reset the acquired CIDs
*
* @param p_hwfn
*/
void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn);
/**
* @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path.
*
*
*
* @param p_hwfn
*/
void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn);
/**
* @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path.
*
* @param p_hwfn
* @param p_ptt
*/
void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
/**
* @brief qed_qm_init_pf - Initailze the QM PF phase, per path
*
* @param p_hwfn
* @param p_ptt
* @param is_pf_loading
*/
void qed_qm_init_pf(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, bool is_pf_loading);
/**
* @brief Reconfigures QM pf on the fly
*
* @param p_hwfn
* @param p_ptt
*
* @return int
*/
int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
#define QED_CXT_PF_CID (0xff)
/**
* @brief qed_cxt_release - Release a cid
*
* @param p_hwfn
* @param cid
*/
void qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid);
/**
* @brief qed_cxt_release - Release a cid belonging to a vf-queue
*
* @param p_hwfn
* @param cid
* @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF
*/
void _qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid, u8 vfid);
/**
* @brief qed_cxt_acquire - Acquire a new cid of a specific protocol type
*
* @param p_hwfn
* @param type
* @param p_cid
*
* @return int
*/
int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
enum protocol_type type, u32 *p_cid);
/**
* @brief _qed_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. QED_CXT_PF_CID if belongs to PF
*
* @return int
*/
int _qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
enum protocol_type type, u32 *p_cid, u8 vfid);
int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn,
enum qed_cxt_elem_type elem_type, u32 iid);
u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn,
enum protocol_type type);
u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn,
enum protocol_type type);
int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto);
#define QED_CTX_WORKING_MEM 0
#define QED_CTX_FL_MEM 1
int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
u32 tid, u8 ctx_type, void **task_ctx);
/* Max number of connection types in HW (DQ/CDU etc.) */
#define MAX_CONN_TYPES PROTOCOLID_COMMON
#define NUM_TASK_TYPES 2
#define NUM_TASK_PF_SEGMENTS 4
#define NUM_TASK_VF_SEGMENTS 1
/* PF per protocl configuration object */
#define TASK_SEGMENTS (NUM_TASK_PF_SEGMENTS + NUM_TASK_VF_SEGMENTS)
#define TASK_SEGMENT_VF (NUM_TASK_PF_SEGMENTS)
struct qed_tid_seg {
u32 count;
u8 type;
bool has_fl_mem;
};
struct qed_conn_type_cfg {
u32 cid_count;
u32 cids_per_vf;
struct qed_tid_seg tid_seg[TASK_SEGMENTS];
};
/* ILT Client configuration,
* Per connection type (protocol) resources (cids, tis, vf cids etc.)
* 1 - for connection context (CDUC) and for each task context we need two
* values, for regular task context and for force load memory
*/
#define ILT_CLI_PF_BLOCKS (1 + NUM_TASK_PF_SEGMENTS * 2)
#define ILT_CLI_VF_BLOCKS (1 + NUM_TASK_VF_SEGMENTS * 2)
#define CDUC_BLK (0)
#define SRQ_BLK (0)
#define CDUT_SEG_BLK(n) (1 + (u8)(n))
#define CDUT_FL_SEG_BLK(n, X) (1 + (n) + NUM_TASK_ ## X ## _SEGMENTS)
struct ilt_cfg_pair {
u32 reg;
u32 val;
};
struct qed_ilt_cli_blk {
u32 total_size; /* 0 means not active */
u32 real_size_in_page;
u32 start_line;
u32 dynamic_line_offset;
u32 dynamic_line_cnt;
};
struct qed_ilt_client_cfg {
bool active;
/* ILT boundaries */
struct ilt_cfg_pair first;
struct ilt_cfg_pair last;
struct ilt_cfg_pair p_size;
/* ILT client blocks for PF */
struct qed_ilt_cli_blk pf_blks[ILT_CLI_PF_BLOCKS];
u32 pf_total_lines;
/* ILT client blocks for VFs */
struct qed_ilt_cli_blk vf_blks[ILT_CLI_VF_BLOCKS];
u32 vf_total_lines;
};
struct qed_cid_acquired_map {
u32 start_cid;
u32 max_count;
unsigned long *cid_map;
};
struct qed_src_t2 {
struct phys_mem_desc *dma_mem;
u32 num_pages;
u64 first_free;
u64 last_free;
};
struct qed_cxt_mngr {
/* Per protocl configuration */
struct qed_conn_type_cfg conn_cfg[MAX_CONN_TYPES];
/* computed ILT structure */
struct qed_ilt_client_cfg clients[MAX_ILT_CLIENTS];
/* Task type sizes */
u32 task_type_size[NUM_TASK_TYPES];
/* total number of VFs for this hwfn -
* ALL VFs are symmetric in terms of HW resources
*/
u32 vf_count;
u32 first_vf_in_pf;
/* Acquired CIDs */
struct qed_cid_acquired_map acquired[MAX_CONN_TYPES];
struct qed_cid_acquired_map
acquired_vf[MAX_CONN_TYPES][MAX_NUM_VFS];
/* ILT shadow table */
struct phys_mem_desc *ilt_shadow;
u32 ilt_shadow_size;
u32 pf_start_line;
/* Mutex for a dynamic ILT allocation */
struct mutex mutex;
/* SRC T2 */
struct qed_src_t2 src_t2;
/* total number of SRQ's for this hwfn */
u32 srq_count;
u32 xrc_srq_count;
/* Maximal number of L2 steering filters */
u32 arfs_count;
u8 task_type_id;
u16 task_ctx_size;
u16 conn_ctx_size;
};
u16 qed_get_cdut_num_pf_init_pages(struct qed_hwfn *p_hwfn);
u16 qed_get_cdut_num_vf_init_pages(struct qed_hwfn *p_hwfn);
u16 qed_get_cdut_num_pf_work_pages(struct qed_hwfn *p_hwfn);
u16 qed_get_cdut_num_vf_work_pages(struct qed_hwfn *p_hwfn);
u32 qed_cxt_get_ilt_page_size(struct qed_hwfn *p_hwfn,
enum ilt_clients ilt_client);
u32 qed_cxt_get_total_srq_count(struct qed_hwfn *p_hwfn);
#endif