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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_HW_H
#define _QED_HW_H
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <linux/string.h>
#include "qed.h"
#include "qed_dev_api.h"
/* Forward decleration */
struct qed_ptt;
enum reserved_ptts {
RESERVED_PTT_EDIAG,
RESERVED_PTT_USER_SPACE,
RESERVED_PTT_MAIN,
RESERVED_PTT_DPC,
RESERVED_PTT_MAX
};
enum _dmae_cmd_dst_mask {
DMAE_CMD_DST_MASK_NONE = 0,
DMAE_CMD_DST_MASK_PCIE = 1,
DMAE_CMD_DST_MASK_GRC = 2
};
enum _dmae_cmd_src_mask {
DMAE_CMD_SRC_MASK_PCIE = 0,
DMAE_CMD_SRC_MASK_GRC = 1
};
enum _dmae_cmd_crc_mask {
DMAE_CMD_COMP_CRC_EN_MASK_NONE = 0,
DMAE_CMD_COMP_CRC_EN_MASK_SET = 1
};
/* definitions for DMA constants */
#define DMAE_GO_VALUE 0x1
#define DMAE_COMPLETION_VAL 0xD1AE
#define DMAE_CMD_ENDIANITY 0x2
#define DMAE_CMD_SIZE 14
#define DMAE_CMD_SIZE_TO_FILL (DMAE_CMD_SIZE - 5)
#define DMAE_MIN_WAIT_TIME 0x2
#define DMAE_MAX_CLIENTS 32
/**
* @brief qed_gtt_init - Initialize GTT windows
*
* @param p_hwfn
*/
void qed_gtt_init(struct qed_hwfn *p_hwfn);
/**
* @brief qed_ptt_invalidate - Forces all ptt entries to be re-configured
*
* @param p_hwfn
*/
void qed_ptt_invalidate(struct qed_hwfn *p_hwfn);
/**
* @brief qed_ptt_pool_alloc - Allocate and initialize PTT pool
*
* @param p_hwfn
*
* @return struct _qed_status - success (0), negative - error.
*/
int qed_ptt_pool_alloc(struct qed_hwfn *p_hwfn);
/**
* @brief qed_ptt_pool_free -
*
* @param p_hwfn
*/
void qed_ptt_pool_free(struct qed_hwfn *p_hwfn);
/**
* @brief qed_ptt_get_hw_addr - Get PTT's GRC/HW address
*
* @param p_hwfn
* @param p_ptt
*
* @return u32
*/
u32 qed_ptt_get_hw_addr(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt);
/**
* @brief qed_ptt_get_bar_addr - Get PPT's external BAR address
*
* @param p_hwfn
* @param p_ptt
*
* @return u32
*/
u32 qed_ptt_get_bar_addr(struct qed_ptt *p_ptt);
/**
* @brief qed_ptt_set_win - Set PTT Window's GRC BAR address
*
* @param p_hwfn
* @param new_hw_addr
* @param p_ptt
*/
void qed_ptt_set_win(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 new_hw_addr);
/**
* @brief qed_get_reserved_ptt - Get a specific reserved PTT
*
* @param p_hwfn
* @param ptt_idx
*
* @return struct qed_ptt *
*/
struct qed_ptt *qed_get_reserved_ptt(struct qed_hwfn *p_hwfn,
enum reserved_ptts ptt_idx);
/**
* @brief qed_wr - Write value to BAR using the given ptt
*
* @param p_hwfn
* @param p_ptt
* @param val
* @param hw_addr
*/
void qed_wr(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 hw_addr,
u32 val);
/**
* @brief qed_rd - Read value from BAR using the given ptt
*
* @param p_hwfn
* @param p_ptt
* @param val
* @param hw_addr
*/
u32 qed_rd(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 hw_addr);
/**
* @brief qed_memcpy_from - copy n bytes from BAR using the given
* ptt
*
* @param p_hwfn
* @param p_ptt
* @param dest
* @param hw_addr
* @param n
*/
void qed_memcpy_from(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
void *dest,
u32 hw_addr,
size_t n);
/**
* @brief qed_memcpy_to - copy n bytes to BAR using the given
* ptt
*
* @param p_hwfn
* @param p_ptt
* @param hw_addr
* @param src
* @param n
*/
void qed_memcpy_to(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u32 hw_addr,
void *src,
size_t n);
/**
* @brief qed_fid_pretend - pretend to another function when
* accessing the ptt window. There is no way to unpretend
* a function. The only way to cancel a pretend is to
* pretend back to the original function.
*
* @param p_hwfn
* @param p_ptt
* @param fid - fid field of pxp_pretend structure. Can contain
* either pf / vf, port/path fields are don't care.
*/
void qed_fid_pretend(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u16 fid);
/**
* @brief qed_port_pretend - pretend to another port when
* accessing the ptt window
*
* @param p_hwfn
* @param p_ptt
* @param port_id - the port to pretend to
*/
void qed_port_pretend(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u8 port_id);
/**
* @brief qed_port_unpretend - cancel any previously set port
* pretend
*
* @param p_hwfn
* @param p_ptt
*/
void qed_port_unpretend(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt);
/**
* @brief qed_port_fid_pretend - pretend to another port and another function
* when accessing the ptt window
*
* @param p_hwfn
* @param p_ptt
* @param port_id - the port to pretend to
* @param fid - fid field of pxp_pretend structure. Can contain either pf / vf.
*/
void qed_port_fid_pretend(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u8 port_id, u16 fid);
/**
* @brief qed_vfid_to_concrete - build a concrete FID for a
* given VF ID
*
* @param p_hwfn
* @param p_ptt
* @param vfid
*/
u32 qed_vfid_to_concrete(struct qed_hwfn *p_hwfn, u8 vfid);
/**
* @brief qed_dmae_idx_to_go_cmd - map the idx to dmae cmd
* this is declared here since other files will require it.
* @param idx
*/
u32 qed_dmae_idx_to_go_cmd(u8 idx);
/**
* @brief qed_dmae_info_alloc - Init the dmae_info structure
* which is part of p_hwfn.
* @param p_hwfn
*/
int qed_dmae_info_alloc(struct qed_hwfn *p_hwfn);
/**
* @brief qed_dmae_info_free - Free the dmae_info structure
* which is part of p_hwfn
*
* @param p_hwfn
*/
void qed_dmae_info_free(struct qed_hwfn *p_hwfn);
union qed_qm_pq_params {
struct {
u8 q_idx;
} iscsi;
struct {
u8 tc;
} core;
struct {
u8 is_vf;
u8 vf_id;
u8 tc;
} eth;
struct {
u8 dcqcn;
u8 qpid; /* roce relative */
} roce;
};
int qed_init_fw_data(struct qed_dev *cdev,
const u8 *fw_data);
int qed_dmae_sanity(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, const char *phase);
#define QED_HW_ERR_MAX_STR_SIZE 256
/**
* @brief qed_hw_err_notify - Notify upper layer driver and management FW
* about a HW error.
*
* @param p_hwfn
* @param p_ptt
* @param err_type
* @param fmt - debug data buffer to send to the MFW
* @param ... - buffer format args
*/
void qed_hw_err_notify(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_hw_err_type err_type, char *fmt, ...);
#endif
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