treewide: remove redundant IS_ERR() before error code check

[linux/fpc-iii.git] / drivers / net / ethernet / qlogic / qed / qed_mcp.h

/* QLogic qed NIC Driver
 * Copyright (c) 2015-2017  QLogic Corporation
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - 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.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef _QED_MCP_H
#define _QED_MCP_H

#include <linux/types.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/qed/qed_fcoe_if.h>
#include "qed_hsi.h"
#include "qed_dev_api.h"

struct qed_mcp_link_speed_params {
        bool    autoneg;
        u32     advertised_speeds;      /* bitmask of DRV_SPEED_CAPABILITY */
        u32     forced_speed;      /* In Mb/s */
};

struct qed_mcp_link_pause_params {
        bool    autoneg;
        bool    forced_rx;
        bool    forced_tx;
};

enum qed_mcp_eee_mode {
        QED_MCP_EEE_DISABLED,
        QED_MCP_EEE_ENABLED,
        QED_MCP_EEE_UNSUPPORTED
};

struct qed_mcp_link_params {
        struct qed_mcp_link_speed_params speed;
        struct qed_mcp_link_pause_params pause;
        u32 loopback_mode;
        struct qed_link_eee_params eee;
};

struct qed_mcp_link_capabilities {
        u32 speed_capabilities;
        bool default_speed_autoneg;
        enum qed_mcp_eee_mode default_eee;
        u32 eee_lpi_timer;
        u8 eee_speed_caps;
};

struct qed_mcp_link_state {
        bool    link_up;

        u32     min_pf_rate;

        /* Actual link speed in Mb/s */
        u32     line_speed;

        /* PF max speed in Mb/s, deduced from line_speed
         * according to PF max bandwidth configuration.
         */
        u32     speed;
        bool    full_duplex;

        bool    an;
        bool    an_complete;
        bool    parallel_detection;
        bool    pfc_enabled;

#define QED_LINK_PARTNER_SPEED_1G_HD    BIT(0)
#define QED_LINK_PARTNER_SPEED_1G_FD    BIT(1)
#define QED_LINK_PARTNER_SPEED_10G      BIT(2)
#define QED_LINK_PARTNER_SPEED_20G      BIT(3)
#define QED_LINK_PARTNER_SPEED_25G      BIT(4)
#define QED_LINK_PARTNER_SPEED_40G      BIT(5)
#define QED_LINK_PARTNER_SPEED_50G      BIT(6)
#define QED_LINK_PARTNER_SPEED_100G     BIT(7)
        u32     partner_adv_speed;

        bool    partner_tx_flow_ctrl_en;
        bool    partner_rx_flow_ctrl_en;

#define QED_LINK_PARTNER_SYMMETRIC_PAUSE (1)
#define QED_LINK_PARTNER_ASYMMETRIC_PAUSE (2)
#define QED_LINK_PARTNER_BOTH_PAUSE (3)
        u8      partner_adv_pause;

        bool    sfp_tx_fault;
        bool    eee_active;
        u8      eee_adv_caps;
        u8      eee_lp_adv_caps;
};

struct qed_mcp_function_info {
        u8                              pause_on_host;

        enum qed_pci_personality        protocol;

        u8                              bandwidth_min;
        u8                              bandwidth_max;

        u8                              mac[ETH_ALEN];

        u64                             wwn_port;
        u64                             wwn_node;

#define QED_MCP_VLAN_UNSET              (0xffff)
        u16                             ovlan;

        u16                             mtu;
};

struct qed_mcp_nvm_common {
        u32     offset;
        u32     param;
        u32     resp;
        u32     cmd;
};

struct qed_mcp_drv_version {
        u32     version;
        u8      name[MCP_DRV_VER_STR_SIZE - 4];
};

struct qed_mcp_lan_stats {
        u64 ucast_rx_pkts;
        u64 ucast_tx_pkts;
        u32 fcs_err;
};

struct qed_mcp_fcoe_stats {
        u64 rx_pkts;
        u64 tx_pkts;
        u32 fcs_err;
        u32 login_failure;
};

struct qed_mcp_iscsi_stats {
        u64 rx_pdus;
        u64 tx_pdus;
        u64 rx_bytes;
        u64 tx_bytes;
};

struct qed_mcp_rdma_stats {
        u64 rx_pkts;
        u64 tx_pkts;
        u64 rx_bytes;
        u64 tx_byts;
};

enum qed_mcp_protocol_type {
        QED_MCP_LAN_STATS,
        QED_MCP_FCOE_STATS,
        QED_MCP_ISCSI_STATS,
        QED_MCP_RDMA_STATS
};

union qed_mcp_protocol_stats {
        struct qed_mcp_lan_stats lan_stats;
        struct qed_mcp_fcoe_stats fcoe_stats;
        struct qed_mcp_iscsi_stats iscsi_stats;
        struct qed_mcp_rdma_stats rdma_stats;
};

enum qed_ov_eswitch {
        QED_OV_ESWITCH_NONE,
        QED_OV_ESWITCH_VEB,
        QED_OV_ESWITCH_VEPA
};

enum qed_ov_client {
        QED_OV_CLIENT_DRV,
        QED_OV_CLIENT_USER,
        QED_OV_CLIENT_VENDOR_SPEC
};

enum qed_ov_driver_state {
        QED_OV_DRIVER_STATE_NOT_LOADED,
        QED_OV_DRIVER_STATE_DISABLED,
        QED_OV_DRIVER_STATE_ACTIVE
};

enum qed_ov_wol {
        QED_OV_WOL_DEFAULT,
        QED_OV_WOL_DISABLED,
        QED_OV_WOL_ENABLED
};

enum qed_mfw_tlv_type {
        QED_MFW_TLV_GENERIC = 0x1,      /* Core driver TLVs */
        QED_MFW_TLV_ETH = 0x2,          /* L2 driver TLVs */
        QED_MFW_TLV_FCOE = 0x4,         /* FCoE protocol TLVs */
        QED_MFW_TLV_ISCSI = 0x8,        /* SCSI protocol TLVs */
        QED_MFW_TLV_MAX = 0x16,
};

struct qed_mfw_tlv_generic {
#define QED_MFW_TLV_FLAGS_SIZE  2
        struct {
                u8 ipv4_csum_offload;
                u8 lso_supported;
                bool b_set;
        } flags;

#define QED_MFW_TLV_MAC_COUNT 3
        /* First entry for primary MAC, 2 secondary MACs possible */
        u8 mac[QED_MFW_TLV_MAC_COUNT][6];
        bool mac_set[QED_MFW_TLV_MAC_COUNT];

        u64 rx_frames;
        bool rx_frames_set;
        u64 rx_bytes;
        bool rx_bytes_set;
        u64 tx_frames;
        bool tx_frames_set;
        u64 tx_bytes;
        bool tx_bytes_set;
};

union qed_mfw_tlv_data {
        struct qed_mfw_tlv_generic generic;
        struct qed_mfw_tlv_eth eth;
        struct qed_mfw_tlv_fcoe fcoe;
        struct qed_mfw_tlv_iscsi iscsi;
};

#define QED_NVM_CFG_OPTION_ALL          BIT(0)
#define QED_NVM_CFG_OPTION_INIT         BIT(1)
#define QED_NVM_CFG_OPTION_COMMIT       BIT(2)
#define QED_NVM_CFG_OPTION_FREE         BIT(3)
#define QED_NVM_CFG_OPTION_ENTITY_SEL   BIT(4)

/**
 * @brief - returns the link params of the hw function
 *
 * @param p_hwfn
 *
 * @returns pointer to link params
 */
struct qed_mcp_link_params *qed_mcp_get_link_params(struct qed_hwfn *);

/**
 * @brief - return the link state of the hw function
 *
 * @param p_hwfn
 *
 * @returns pointer to link state
 */
struct qed_mcp_link_state *qed_mcp_get_link_state(struct qed_hwfn *);

/**
 * @brief - return the link capabilities of the hw function
 *
 * @param p_hwfn
 *
 * @returns pointer to link capabilities
 */
struct qed_mcp_link_capabilities
        *qed_mcp_get_link_capabilities(struct qed_hwfn *p_hwfn);

/**
 * @brief Request the MFW to set the the link according to 'link_input'.
 *
 * @param p_hwfn
 * @param p_ptt
 * @param b_up - raise link if `true'. Reset link if `false'.
 *
 * @return int
 */
int qed_mcp_set_link(struct qed_hwfn   *p_hwfn,
                     struct qed_ptt     *p_ptt,
                     bool               b_up);

/**
 * @brief Get the management firmware version value
 *
 * @param p_hwfn
 * @param p_ptt
 * @param p_mfw_ver    - mfw version value
 * @param p_running_bundle_id   - image id in nvram; Optional.
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_get_mfw_ver(struct qed_hwfn *p_hwfn,
                        struct qed_ptt *p_ptt,
                        u32 *p_mfw_ver, u32 *p_running_bundle_id);

/**
 * @brief Get the MBI version value
 *
 * @param p_hwfn
 * @param p_ptt
 * @param p_mbi_ver - A pointer to a variable to be filled with the MBI version.
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_get_mbi_ver(struct qed_hwfn *p_hwfn,
                        struct qed_ptt *p_ptt, u32 *p_mbi_ver);

/**
 * @brief Get media type value of the port.
 *
 * @param cdev      - qed dev pointer
 * @param p_ptt
 * @param mfw_ver    - media type value
 *
 * @return int -
 *      0 - Operation was successul.
 *      -EBUSY - Operation failed
 */
int qed_mcp_get_media_type(struct qed_hwfn *p_hwfn,
                           struct qed_ptt *p_ptt, u32 *media_type);

/**
 * @brief Get transceiver data of the port.
 *
 * @param cdev      - qed dev pointer
 * @param p_ptt
 * @param p_transceiver_state - transceiver state.
 * @param p_transceiver_type - media type value
 *
 * @return int -
 *      0 - Operation was successful.
 *      -EBUSY - Operation failed
 */
int qed_mcp_get_transceiver_data(struct qed_hwfn *p_hwfn,
                                 struct qed_ptt *p_ptt,
                                 u32 *p_transceiver_state,
                                 u32 *p_tranceiver_type);

/**
 * @brief Get transceiver supported speed mask.
 *
 * @param cdev      - qed dev pointer
 * @param p_ptt
 * @param p_speed_mask - Bit mask of all supported speeds.
 *
 * @return int -
 *      0 - Operation was successful.
 *      -EBUSY - Operation failed
 */

int qed_mcp_trans_speed_mask(struct qed_hwfn *p_hwfn,
                             struct qed_ptt *p_ptt, u32 *p_speed_mask);

/**
 * @brief Get board configuration.
 *
 * @param cdev      - qed dev pointer
 * @param p_ptt
 * @param p_board_config - Board config.
 *
 * @return int -
 *      0 - Operation was successful.
 *      -EBUSY - Operation failed
 */
int qed_mcp_get_board_config(struct qed_hwfn *p_hwfn,
                             struct qed_ptt *p_ptt, u32 *p_board_config);

/**
 * @brief General function for sending commands to the MCP
 *        mailbox. It acquire mutex lock for the entire
 *        operation, from sending the request until the MCP
 *        response. Waiting for MCP response will be checked up
 *        to 5 seconds every 5ms.
 *
 * @param p_hwfn     - hw function
 * @param p_ptt      - PTT required for register access
 * @param cmd        - command to be sent to the MCP.
 * @param param      - Optional param
 * @param o_mcp_resp - The MCP response code (exclude sequence).
 * @param o_mcp_param- Optional parameter provided by the MCP
 *                     response
 * @return int - 0 - operation
 * was successul.
 */
int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
                struct qed_ptt *p_ptt,
                u32 cmd,
                u32 param,
                u32 *o_mcp_resp,
                u32 *o_mcp_param);

/**
 * @brief - drains the nig, allowing completion to pass in case of pauses.
 *          (Should be called only from sleepable context)
 *
 * @param p_hwfn
 * @param p_ptt
 */
int qed_mcp_drain(struct qed_hwfn *p_hwfn,
                  struct qed_ptt *p_ptt);

/**
 * @brief Get the flash size value
 *
 * @param p_hwfn
 * @param p_ptt
 * @param p_flash_size  - flash size in bytes to be filled.
 *
 * @return int - 0 - operation was successul.
 */
int qed_mcp_get_flash_size(struct qed_hwfn     *p_hwfn,
                           struct qed_ptt       *p_ptt,
                           u32 *p_flash_size);

/**
 * @brief Send driver version to MFW
 *
 * @param p_hwfn
 * @param p_ptt
 * @param version - Version value
 * @param name - Protocol driver name
 *
 * @return int - 0 - operation was successul.
 */
int
qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
                         struct qed_ptt *p_ptt,
                         struct qed_mcp_drv_version *p_ver);

/**
 * @brief Read the MFW process kill counter
 *
 * @param p_hwfn
 * @param p_ptt
 *
 * @return u32
 */
u32 qed_get_process_kill_counter(struct qed_hwfn *p_hwfn,
                                 struct qed_ptt *p_ptt);

/**
 * @brief Trigger a recovery process
 *
 *  @param p_hwfn
 *  @param p_ptt
 *
 * @return int
 */
int qed_start_recovery_process(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief A recovery handler must call this function as its first step.
 *        It is assumed that the handler is not run from an interrupt context.
 *
 *  @param cdev
 *  @param p_ptt
 *
 * @return int
 */
int qed_recovery_prolog(struct qed_dev *cdev);

/**
 * @brief Notify MFW about the change in base device properties
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param client - qed client type
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_ov_update_current_config(struct qed_hwfn *p_hwfn,
                                     struct qed_ptt *p_ptt,
                                     enum qed_ov_client client);

/**
 * @brief Notify MFW about the driver state
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param drv_state - Driver state
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_ov_update_driver_state(struct qed_hwfn *p_hwfn,
                                   struct qed_ptt *p_ptt,
                                   enum qed_ov_driver_state drv_state);

/**
 * @brief Send MTU size to MFW
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param mtu - MTU size
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_ov_update_mtu(struct qed_hwfn *p_hwfn,
                          struct qed_ptt *p_ptt, u16 mtu);

/**
 * @brief Send MAC address to MFW
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param mac - MAC address
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_ov_update_mac(struct qed_hwfn *p_hwfn,
                          struct qed_ptt *p_ptt, u8 *mac);

/**
 * @brief Send WOL mode to MFW
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param wol - WOL mode
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_ov_update_wol(struct qed_hwfn *p_hwfn,
                          struct qed_ptt *p_ptt,
                          enum qed_ov_wol wol);

/**
 * @brief Set LED status
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param mode - LED mode
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_set_led(struct qed_hwfn *p_hwfn,
                    struct qed_ptt *p_ptt,
                    enum qed_led_mode mode);

/**
 * @brief Read from nvm
 *
 *  @param cdev
 *  @param addr - nvm offset
 *  @param p_buf - nvm read buffer
 *  @param len - buffer len
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_nvm_read(struct qed_dev *cdev, u32 addr, u8 *p_buf, u32 len);

/**
 * @brief Write to nvm
 *
 *  @param cdev
 *  @param addr - nvm offset
 *  @param cmd - nvm command
 *  @param p_buf - nvm write buffer
 *  @param len - buffer len
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_nvm_write(struct qed_dev *cdev,
                      u32 cmd, u32 addr, u8 *p_buf, u32 len);

/**
 * @brief Check latest response
 *
 *  @param cdev
 *  @param p_buf - nvm write buffer
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_nvm_resp(struct qed_dev *cdev, u8 *p_buf);

struct qed_nvm_image_att {
        u32 start_addr;
        u32 length;
};

/**
 * @brief Allows reading a whole nvram image
 *
 * @param p_hwfn
 * @param image_id - image to get attributes for
 * @param p_image_att - image attributes structure into which to fill data
 *
 * @return int - 0 - operation was successful.
 */
int
qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
                          enum qed_nvm_images image_id,
                          struct qed_nvm_image_att *p_image_att);

/**
 * @brief Allows reading a whole nvram image
 *
 * @param p_hwfn
 * @param image_id - image requested for reading
 * @param p_buffer - allocated buffer into which to fill data
 * @param buffer_len - length of the allocated buffer.
 *
 * @return 0 iff p_buffer now contains the nvram image.
 */
int qed_mcp_get_nvm_image(struct qed_hwfn *p_hwfn,
                          enum qed_nvm_images image_id,
                          u8 *p_buffer, u32 buffer_len);

/**
 * @brief Bist register test
 *
 *  @param p_hwfn    - hw function
 *  @param p_ptt     - PTT required for register access
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_bist_register_test(struct qed_hwfn *p_hwfn,
                               struct qed_ptt *p_ptt);

/**
 * @brief Bist clock test
 *
 *  @param p_hwfn    - hw function
 *  @param p_ptt     - PTT required for register access
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_bist_clock_test(struct qed_hwfn *p_hwfn,
                            struct qed_ptt *p_ptt);

/**
 * @brief Bist nvm test - get number of images
 *
 *  @param p_hwfn       - hw function
 *  @param p_ptt        - PTT required for register access
 *  @param num_images   - number of images if operation was
 *                        successful. 0 if not.
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_bist_nvm_get_num_images(struct qed_hwfn *p_hwfn,
                                    struct qed_ptt *p_ptt,
                                    u32 *num_images);

/**
 * @brief Bist nvm test - get image attributes by index
 *
 *  @param p_hwfn      - hw function
 *  @param p_ptt       - PTT required for register access
 *  @param p_image_att - Attributes of image
 *  @param image_index - Index of image to get information for
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_bist_nvm_get_image_att(struct qed_hwfn *p_hwfn,
                                   struct qed_ptt *p_ptt,
                                   struct bist_nvm_image_att *p_image_att,
                                   u32 image_index);

/**
 * @brief - Processes the TLV request from MFW i.e., get the required TLV info
 *          from the qed client and send it to the MFW.
 *
 * @param p_hwfn
 * @param p_ptt
 *
 * @param return 0 upon success.
 */
int qed_mfw_process_tlv_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/* Using hwfn number (and not pf_num) is required since in CMT mode,
 * same pf_num may be used by two different hwfn
 * TODO - this shouldn't really be in .h file, but until all fields
 * required during hw-init will be placed in their correct place in shmem
 * we need it in qed_dev.c [for readin the nvram reflection in shmem].
 */
#define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (QED_IS_BB((p_hwfn)->cdev) ?        \
                                            ((rel_pfid) |                      \
                                             ((p_hwfn)->abs_pf_id & 1) << 3) : \
                                            rel_pfid)
#define MCP_PF_ID(p_hwfn) MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id)

struct qed_mcp_info {
        /* List for mailbox commands which were sent and wait for a response */
        struct list_head                        cmd_list;

        /* Spinlock used for protecting the access to the mailbox commands list
         * and the sending of the commands.
         */
        spinlock_t                              cmd_lock;

        /* Flag to indicate whether sending a MFW mailbox command is blocked */
        bool                                    b_block_cmd;

        /* Spinlock used for syncing SW link-changes and link-changes
         * originating from attention context.
         */
        spinlock_t                              link_lock;

        u32                                     public_base;
        u32                                     drv_mb_addr;
        u32                                     mfw_mb_addr;
        u32                                     port_addr;
        u16                                     drv_mb_seq;
        u16                                     drv_pulse_seq;
        struct qed_mcp_link_params              link_input;
        struct qed_mcp_link_state               link_output;
        struct qed_mcp_link_capabilities        link_capabilities;
        struct qed_mcp_function_info            func_info;
        u8                                      *mfw_mb_cur;
        u8                                      *mfw_mb_shadow;
        u16                                     mfw_mb_length;
        u32                                     mcp_hist;

        /* Capabilties negotiated with the MFW */
        u32                                     capabilities;
};

struct qed_mcp_mb_params {
        u32 cmd;
        u32 param;
        void *p_data_src;
        void *p_data_dst;
        u8 data_src_size;
        u8 data_dst_size;
        u32 mcp_resp;
        u32 mcp_param;
        u32 flags;
#define QED_MB_FLAG_CAN_SLEEP   (0x1 << 0)
#define QED_MB_FLAG_AVOID_BLOCK (0x1 << 1)
#define QED_MB_FLAGS_IS_SET(params, flag) \
        ({ typeof(params) __params = (params); \
           (__params && (__params->flags & QED_MB_FLAG_ ## flag)); })
};

struct qed_drv_tlv_hdr {
        u8 tlv_type;
        u8 tlv_length;  /* In dwords - not including this header */
        u8 tlv_reserved;
#define QED_DRV_TLV_FLAGS_CHANGED 0x01
        u8 tlv_flags;
};

/**
 * @brief Initialize the interface with the MCP
 *
 * @param p_hwfn - HW func
 * @param p_ptt - PTT required for register access
 *
 * @return int
 */
int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn,
                     struct qed_ptt *p_ptt);

/**
 * @brief Initialize the port interface with the MCP
 *
 * @param p_hwfn
 * @param p_ptt
 * Can only be called after `num_ports_in_engines' is set
 */
void qed_mcp_cmd_port_init(struct qed_hwfn *p_hwfn,
                           struct qed_ptt *p_ptt);
/**
 * @brief Releases resources allocated during the init process.
 *
 * @param p_hwfn - HW func
 * @param p_ptt - PTT required for register access
 *
 * @return int
 */

int qed_mcp_free(struct qed_hwfn *p_hwfn);

/**
 * @brief This function is called from the DPC context. After
 * pointing PTT to the mfw mb, check for events sent by the MCP
 * to the driver and ack them. In case a critical event
 * detected, it will be handled here, otherwise the work will be
 * queued to a sleepable work-queue.
 *
 * @param p_hwfn - HW function
 * @param p_ptt - PTT required for register access
 * @return int - 0 - operation
 * was successul.
 */
int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
                          struct qed_ptt *p_ptt);

enum qed_drv_role {
        QED_DRV_ROLE_OS,
        QED_DRV_ROLE_KDUMP,
};

struct qed_load_req_params {
        /* Input params */
        enum qed_drv_role drv_role;
        u8 timeout_val;
        bool avoid_eng_reset;
        enum qed_override_force_load override_force_load;

        /* Output params */
        u32 load_code;
};

/**
 * @brief Sends a LOAD_REQ to the MFW, and in case the operation succeeds,
 *        returns whether this PF is the first on the engine/port or function.
 *
 * @param p_hwfn
 * @param p_ptt
 * @param p_params
 *
 * @return int - 0 - Operation was successful.
 */
int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
                     struct qed_ptt *p_ptt,
                     struct qed_load_req_params *p_params);

/**
 * @brief Sends a LOAD_DONE message to the MFW
 *
 * @param p_hwfn
 * @param p_ptt
 *
 * @return int - 0 - Operation was successful.
 */
int qed_mcp_load_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief Sends a UNLOAD_REQ message to the MFW
 *
 * @param p_hwfn
 * @param p_ptt
 *
 * @return int - 0 - Operation was successful.
 */
int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief Sends a UNLOAD_DONE message to the MFW
 *
 * @param p_hwfn
 * @param p_ptt
 *
 * @return int - 0 - Operation was successful.
 */
int qed_mcp_unload_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief Read the MFW mailbox into Current buffer.
 *
 * @param p_hwfn
 * @param p_ptt
 */
void qed_mcp_read_mb(struct qed_hwfn *p_hwfn,
                     struct qed_ptt *p_ptt);

/**
 * @brief Ack to mfw that driver finished FLR process for VFs
 *
 * @param p_hwfn
 * @param p_ptt
 * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
 *
 * @param return int - 0 upon success.
 */
int qed_mcp_ack_vf_flr(struct qed_hwfn *p_hwfn,
                       struct qed_ptt *p_ptt, u32 *vfs_to_ack);

/**
 * @brief - calls during init to read shmem of all function-related info.
 *
 * @param p_hwfn
 *
 * @param return 0 upon success.
 */
int qed_mcp_fill_shmem_func_info(struct qed_hwfn *p_hwfn,
                                 struct qed_ptt *p_ptt);

/**
 * @brief - Reset the MCP using mailbox command.
 *
 * @param p_hwfn
 * @param p_ptt
 *
 * @param return 0 upon success.
 */
int qed_mcp_reset(struct qed_hwfn *p_hwfn,
                  struct qed_ptt *p_ptt);

/**
 * @brief - Sends an NVM read command request to the MFW to get
 *        a buffer.
 *
 * @param p_hwfn
 * @param p_ptt
 * @param cmd - Command: DRV_MSG_CODE_NVM_GET_FILE_DATA or
 *            DRV_MSG_CODE_NVM_READ_NVRAM commands
 * @param param - [0:23] - Offset [24:31] - Size
 * @param o_mcp_resp - MCP response
 * @param o_mcp_param - MCP response param
 * @param o_txn_size -  Buffer size output
 * @param o_buf - Pointer to the buffer returned by the MFW.
 *
 * @param return 0 upon success.
 */
int qed_mcp_nvm_rd_cmd(struct qed_hwfn *p_hwfn,
                       struct qed_ptt *p_ptt,
                       u32 cmd,
                       u32 param,
                       u32 *o_mcp_resp,
                       u32 *o_mcp_param, u32 *o_txn_size, u32 *o_buf);

/**
 * @brief Read from sfp
 *
 *  @param p_hwfn - hw function
 *  @param p_ptt  - PTT required for register access
 *  @param port   - transceiver port
 *  @param addr   - I2C address
 *  @param offset - offset in sfp
 *  @param len    - buffer length
 *  @param p_buf  - buffer to read into
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_phy_sfp_read(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                         u32 port, u32 addr, u32 offset, u32 len, u8 *p_buf);

/**
 * @brief indicates whether the MFW objects [under mcp_info] are accessible
 *
 * @param p_hwfn
 *
 * @return true iff MFW is running and mcp_info is initialized
 */
bool qed_mcp_is_init(struct qed_hwfn *p_hwfn);

/**
 * @brief request MFW to configure MSI-X for a VF
 *
 * @param p_hwfn
 * @param p_ptt
 * @param vf_id - absolute inside engine
 * @param num_sbs - number of entries to request
 *
 * @return int
 */
int qed_mcp_config_vf_msix(struct qed_hwfn *p_hwfn,
                           struct qed_ptt *p_ptt, u8 vf_id, u8 num);

/**
 * @brief - Halt the MCP.
 *
 * @param p_hwfn
 * @param p_ptt
 *
 * @param return 0 upon success.
 */
int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief - Wake up the MCP.
 *
 * @param p_hwfn
 * @param p_ptt
 *
 * @param return 0 upon success.
 */
int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

int qed_configure_pf_min_bandwidth(struct qed_dev *cdev, u8 min_bw);
int qed_configure_pf_max_bandwidth(struct qed_dev *cdev, u8 max_bw);
int __qed_configure_pf_max_bandwidth(struct qed_hwfn *p_hwfn,
                                     struct qed_ptt *p_ptt,
                                     struct qed_mcp_link_state *p_link,
                                     u8 max_bw);
int __qed_configure_pf_min_bandwidth(struct qed_hwfn *p_hwfn,
                                     struct qed_ptt *p_ptt,
                                     struct qed_mcp_link_state *p_link,
                                     u8 min_bw);

int qed_mcp_mask_parities(struct qed_hwfn *p_hwfn,
                          struct qed_ptt *p_ptt, u32 mask_parities);

/**
 * @brief - Sets the MFW's max value for the given resource
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param res_id
 *  @param resc_max_val
 *  @param p_mcp_resp
 *
 * @return int - 0 - operation was successful.
 */
int
qed_mcp_set_resc_max_val(struct qed_hwfn *p_hwfn,
                         struct qed_ptt *p_ptt,
                         enum qed_resources res_id,
                         u32 resc_max_val, u32 *p_mcp_resp);

/**
 * @brief - Gets the MFW allocation info for the given resource
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param res_id
 *  @param p_mcp_resp
 *  @param p_resc_num
 *  @param p_resc_start
 *
 * @return int - 0 - operation was successful.
 */
int
qed_mcp_get_resc_info(struct qed_hwfn *p_hwfn,
                      struct qed_ptt *p_ptt,
                      enum qed_resources res_id,
                      u32 *p_mcp_resp, u32 *p_resc_num, u32 *p_resc_start);

/**
 * @brief Send eswitch mode to MFW
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param eswitch - eswitch mode
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_ov_update_eswitch(struct qed_hwfn *p_hwfn,
                              struct qed_ptt *p_ptt,
                              enum qed_ov_eswitch eswitch);

#define QED_MCP_RESC_LOCK_MIN_VAL       RESOURCE_DUMP
#define QED_MCP_RESC_LOCK_MAX_VAL       31

enum qed_resc_lock {
        QED_RESC_LOCK_DBG_DUMP = QED_MCP_RESC_LOCK_MIN_VAL,
        QED_RESC_LOCK_PTP_PORT0,
        QED_RESC_LOCK_PTP_PORT1,
        QED_RESC_LOCK_PTP_PORT2,
        QED_RESC_LOCK_PTP_PORT3,
        QED_RESC_LOCK_RESC_ALLOC = QED_MCP_RESC_LOCK_MAX_VAL,
        QED_RESC_LOCK_RESC_INVALID
};

/**
 * @brief - Initiates PF FLR
 *
 *  @param p_hwfn
 *  @param p_ptt
 *
 * @return int - 0 - operation was successful.
 */
int qed_mcp_initiate_pf_flr(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
struct qed_resc_lock_params {
        /* Resource number [valid values are 0..31] */
        u8 resource;

        /* Lock timeout value in seconds [default, none or 1..254] */
        u8 timeout;
#define QED_MCP_RESC_LOCK_TO_DEFAULT    0
#define QED_MCP_RESC_LOCK_TO_NONE       255

        /* Number of times to retry locking */
        u8 retry_num;
#define QED_MCP_RESC_LOCK_RETRY_CNT_DFLT        10

        /* The interval in usec between retries */
        u16 retry_interval;
#define QED_MCP_RESC_LOCK_RETRY_VAL_DFLT        10000

        /* Use sleep or delay between retries */
        bool sleep_b4_retry;

        /* Will be set as true if the resource is free and granted */
        bool b_granted;

        /* Will be filled with the resource owner.
         * [0..15 = PF0-15, 16 = MFW]
         */
        u8 owner;
};

/**
 * @brief Acquires MFW generic resource lock
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param p_params
 *
 * @return int - 0 - operation was successful.
 */
int
qed_mcp_resc_lock(struct qed_hwfn *p_hwfn,
                  struct qed_ptt *p_ptt, struct qed_resc_lock_params *p_params);

struct qed_resc_unlock_params {
        /* Resource number [valid values are 0..31] */
        u8 resource;

        /* Allow to release a resource even if belongs to another PF */
        bool b_force;

        /* Will be set as true if the resource is released */
        bool b_released;
};

/**
 * @brief Releases MFW generic resource lock
 *
 *  @param p_hwfn
 *  @param p_ptt
 *  @param p_params
 *
 * @return int - 0 - operation was successful.
 */
int
qed_mcp_resc_unlock(struct qed_hwfn *p_hwfn,
                    struct qed_ptt *p_ptt,
                    struct qed_resc_unlock_params *p_params);

/**
 * @brief - default initialization for lock/unlock resource structs
 *
 * @param p_lock - lock params struct to be initialized; Can be NULL
 * @param p_unlock - unlock params struct to be initialized; Can be NULL
 * @param resource - the requested resource
 * @paral b_is_permanent - disable retries & aging when set
 */
void qed_mcp_resc_lock_default_init(struct qed_resc_lock_params *p_lock,
                                    struct qed_resc_unlock_params *p_unlock,
                                    enum qed_resc_lock
                                    resource, bool b_is_permanent);

/**
 * @brief - Return whether management firmware support smart AN
 *
 * @param p_hwfn
 *
 * @return bool - true if feature is supported.
 */
bool qed_mcp_is_smart_an_supported(struct qed_hwfn *p_hwfn);

/**
 * @brief Learn of supported MFW features; To be done during early init
 *
 * @param p_hwfn
 * @param p_ptt
 */
int qed_mcp_get_capabilities(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief Inform MFW of set of features supported by driver. Should be done
 * inside the content of the LOAD_REQ.
 *
 * @param p_hwfn
 * @param p_ptt
 */
int qed_mcp_set_capabilities(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief Read ufp config from the shared memory.
 *
 * @param p_hwfn
 * @param p_ptt
 */
void qed_mcp_read_ufp_config(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief Populate the nvm info shadow in the given hardware function
 *
 * @param p_hwfn
 */
int qed_mcp_nvm_info_populate(struct qed_hwfn *p_hwfn);

/**
 * @brief Get the engine affinity configuration.
 *
 * @param p_hwfn
 * @param p_ptt
 */
int qed_mcp_get_engine_config(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief Get the PPFID bitmap.
 *
 * @param p_hwfn
 * @param p_ptt
 */
int qed_mcp_get_ppfid_bitmap(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);

/**
 * @brief Get NVM config attribute value.
 *
 * @param p_hwfn
 * @param p_ptt
 * @param option_id
 * @param entity_id
 * @param flags
 * @param p_buf
 * @param p_len
 */
int qed_mcp_nvm_get_cfg(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                        u16 option_id, u8 entity_id, u16 flags, u8 *p_buf,
                        u32 *p_len);

/**
 * @brief Set NVM config attribute value.
 *
 * @param p_hwfn
 * @param p_ptt
 * @param option_id
 * @param entity_id
 * @param flags
 * @param p_buf
 * @param len
 */
int qed_mcp_nvm_set_cfg(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                        u16 option_id, u8 entity_id, u16 flags, u8 *p_buf,
                        u32 len);
#endif