530 lines
13 KiB
C
530 lines
13 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_DEV_API_H
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#define _QED_DEV_API_H
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/qed/qed_chain.h>
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#include <linux/qed/qed_if.h>
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#include "qed_int.h"
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/**
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* qed_init_dp(): Initialize the debug level.
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*
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* @cdev: Qed dev pointer.
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* @dp_module: Module debug parameter.
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* @dp_level: Module debug level.
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*
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* Return: Void.
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*/
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void qed_init_dp(struct qed_dev *cdev,
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u32 dp_module,
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u8 dp_level);
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/**
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* qed_init_struct(): Initialize the device structure to
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* its defaults.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: Void.
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*/
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void qed_init_struct(struct qed_dev *cdev);
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/**
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* qed_resc_free: Free device resources.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: Void.
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*/
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void qed_resc_free(struct qed_dev *cdev);
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/**
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* qed_resc_alloc(): Alloc device resources.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: Int.
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*/
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int qed_resc_alloc(struct qed_dev *cdev);
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/**
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* qed_resc_setup(): Setup device resources.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: Void.
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*/
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void qed_resc_setup(struct qed_dev *cdev);
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enum qed_override_force_load {
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QED_OVERRIDE_FORCE_LOAD_NONE,
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QED_OVERRIDE_FORCE_LOAD_ALWAYS,
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QED_OVERRIDE_FORCE_LOAD_NEVER,
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};
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struct qed_drv_load_params {
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/* Indicates whether the driver is running over a crash kernel.
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* As part of the load request, this will be used for providing the
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* driver role to the MFW.
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* In case of a crash kernel over PDA - this should be set to false.
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*/
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bool is_crash_kernel;
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/* The timeout value that the MFW should use when locking the engine for
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* the driver load process.
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* A value of '0' means the default value, and '255' means no timeout.
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*/
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u8 mfw_timeout_val;
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#define QED_LOAD_REQ_LOCK_TO_DEFAULT 0
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#define QED_LOAD_REQ_LOCK_TO_NONE 255
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/* Avoid engine reset when first PF loads on it */
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bool avoid_eng_reset;
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/* Allow overriding the default force load behavior */
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enum qed_override_force_load override_force_load;
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};
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struct qed_hw_init_params {
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/* Tunneling parameters */
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struct qed_tunnel_info *p_tunn;
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bool b_hw_start;
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/* Interrupt mode [msix, inta, etc.] to use */
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enum qed_int_mode int_mode;
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/* NPAR tx switching to be used for vports for tx-switching */
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bool allow_npar_tx_switch;
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/* Binary fw data pointer in binary fw file */
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const u8 *bin_fw_data;
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/* Driver load parameters */
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struct qed_drv_load_params *p_drv_load_params;
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};
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/**
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* qed_hw_init(): Init Qed hardware.
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*
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* @cdev: Qed dev pointer.
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* @p_params: Pointers to params.
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*
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* Return: Int.
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*/
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int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params);
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/**
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* qed_hw_timers_stop_all(): Stop the timers HW block.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: void.
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*/
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void qed_hw_timers_stop_all(struct qed_dev *cdev);
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/**
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* qed_hw_stop(): Stop Qed hardware.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: int.
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*/
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int qed_hw_stop(struct qed_dev *cdev);
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/**
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* qed_hw_stop_fastpath(): Should be called incase
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* slowpath is still required for the device,
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* but fastpath is not.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: Int.
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*/
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int qed_hw_stop_fastpath(struct qed_dev *cdev);
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/**
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* qed_hw_start_fastpath(): Restart fastpath traffic,
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* only if hw_stop_fastpath was called.
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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_hw_start_fastpath(struct qed_hwfn *p_hwfn);
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/**
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* qed_hw_prepare(): Prepare Qed hardware.
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*
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* @cdev: Qed dev pointer.
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* @personality: Personality to initialize.
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*
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* Return: Int.
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*/
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int qed_hw_prepare(struct qed_dev *cdev,
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int personality);
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/**
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* qed_hw_remove(): Remove Qed hardware.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: Void.
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*/
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void qed_hw_remove(struct qed_dev *cdev);
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/**
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* qed_ptt_acquire(): Allocate a PTT window.
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*
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* @p_hwfn: HW device data.
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*
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* Return: struct qed_ptt.
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*
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* Should be called at the entry point to the driver (at the beginning of an
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* exported function).
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*/
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struct qed_ptt *qed_ptt_acquire(struct qed_hwfn *p_hwfn);
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/**
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* qed_ptt_acquire_context(): Allocate a PTT window honoring the context
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* atomicy.
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*
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* @p_hwfn: HW device data.
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* @is_atomic: Hint from the caller - if the func can sleep or not.
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*
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* Context: The function should not sleep in case is_atomic == true.
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* Return: struct qed_ptt.
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*
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* Should be called at the entry point to the driver
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* (at the beginning of an exported function).
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*/
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struct qed_ptt *qed_ptt_acquire_context(struct qed_hwfn *p_hwfn,
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bool is_atomic);
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/**
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* qed_ptt_release(): Release PTT Window.
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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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* Should be called at the end of a flow - at the end of the function that
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* acquired the PTT.
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*/
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void qed_ptt_release(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt);
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void qed_reset_vport_stats(struct qed_dev *cdev);
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enum qed_dmae_address_type_t {
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QED_DMAE_ADDRESS_HOST_VIRT,
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QED_DMAE_ADDRESS_HOST_PHYS,
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QED_DMAE_ADDRESS_GRC
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};
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/**
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* qed_dmae_host2grc(): Copy data from source addr to
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* dmae registers using the given ptt.
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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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* @source_addr: Source address.
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* @grc_addr: GRC address (dmae_data_offset).
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* @size_in_dwords: Size.
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* @p_params: (default parameters will be used in case of NULL).
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*
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* Return: Int.
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*/
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int
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qed_dmae_host2grc(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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u64 source_addr,
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u32 grc_addr,
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u32 size_in_dwords,
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struct qed_dmae_params *p_params);
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/**
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* qed_dmae_grc2host(): Read data from dmae data offset
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* to source address using the given ptt.
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*
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* @p_ptt: P_ptt.
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* @grc_addr: GRC address (dmae_data_offset).
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* @dest_addr: Destination Address.
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* @size_in_dwords: Size.
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* @p_params: (default parameters will be used in case of NULL).
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*
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* Return: Int.
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*/
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int qed_dmae_grc2host(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
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u32 grc_addr, dma_addr_t dest_addr, u32 size_in_dwords,
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struct qed_dmae_params *p_params);
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/**
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* qed_dmae_host2host(): Copy data from to source address
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* to a destination adrress (for SRIOV) using the given
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* ptt.
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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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* @source_addr: Source address.
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* @dest_addr: Destination address.
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* @size_in_dwords: size.
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* @p_params: (default parameters will be used in case of NULL).
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*
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* Return: Int.
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*/
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int qed_dmae_host2host(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt,
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dma_addr_t source_addr,
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dma_addr_t dest_addr,
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u32 size_in_dwords, struct qed_dmae_params *p_params);
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int qed_chain_alloc(struct qed_dev *cdev, struct qed_chain *chain,
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struct qed_chain_init_params *params);
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void qed_chain_free(struct qed_dev *cdev, struct qed_chain *chain);
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/**
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* qed_fw_l2_queue(): Get absolute L2 queue ID.
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*
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* @p_hwfn: HW device data.
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* @src_id: Relative to p_hwfn.
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* @dst_id: Absolute per engine.
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*
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* Return: Int.
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*/
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int qed_fw_l2_queue(struct qed_hwfn *p_hwfn,
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u16 src_id,
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u16 *dst_id);
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/**
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* qed_fw_vport(): Get absolute vport ID.
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*
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* @p_hwfn: HW device data.
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* @src_id: Relative to p_hwfn.
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* @dst_id: Absolute per engine.
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*
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* Return: Int.
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*/
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int qed_fw_vport(struct qed_hwfn *p_hwfn,
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u8 src_id,
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u8 *dst_id);
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/**
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* qed_fw_rss_eng(): Get absolute RSS engine ID.
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*
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* @p_hwfn: HW device data.
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* @src_id: Relative to p_hwfn.
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* @dst_id: Absolute per engine.
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*
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* Return: Int.
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*/
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int qed_fw_rss_eng(struct qed_hwfn *p_hwfn,
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u8 src_id,
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u8 *dst_id);
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/**
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* qed_llh_get_num_ppfid(): Return the allocated number of LLH filter
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* banks that are allocated to the PF.
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*
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* @cdev: Qed dev pointer.
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*
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* Return: u8 Number of LLH filter banks.
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*/
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u8 qed_llh_get_num_ppfid(struct qed_dev *cdev);
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enum qed_eng {
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QED_ENG0,
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QED_ENG1,
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QED_BOTH_ENG,
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};
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/**
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* qed_llh_set_ppfid_affinity(): Set the engine affinity for the given
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* LLH filter bank.
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*
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* @cdev: Qed dev pointer.
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* @ppfid: Relative within the allocated ppfids ('0' is the default one).
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* @eng: Engine.
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*
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* Return: Int.
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*/
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int qed_llh_set_ppfid_affinity(struct qed_dev *cdev,
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u8 ppfid, enum qed_eng eng);
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/**
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* qed_llh_set_roce_affinity(): Set the RoCE engine affinity.
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*
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* @cdev: Qed dev pointer.
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* @eng: Engine.
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*
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* Return: Int.
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*/
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int qed_llh_set_roce_affinity(struct qed_dev *cdev, enum qed_eng eng);
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/**
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* qed_llh_add_mac_filter(): Add a LLH MAC filter into the given filter
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* bank.
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*
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* @cdev: Qed dev pointer.
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* @ppfid: Relative within the allocated ppfids ('0' is the default one).
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* @mac_addr: MAC to add.
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*
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* Return: Int.
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*/
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int qed_llh_add_mac_filter(struct qed_dev *cdev,
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u8 ppfid, const u8 mac_addr[ETH_ALEN]);
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/**
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* qed_llh_remove_mac_filter(): Remove a LLH MAC filter from the given
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* filter bank.
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*
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* @cdev: Qed dev pointer.
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* @ppfid: Ppfid.
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* @mac_addr: MAC to remove
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*
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* Return: Void.
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*/
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void qed_llh_remove_mac_filter(struct qed_dev *cdev,
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u8 ppfid, u8 mac_addr[ETH_ALEN]);
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enum qed_llh_prot_filter_type_t {
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QED_LLH_FILTER_ETHERTYPE,
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QED_LLH_FILTER_TCP_SRC_PORT,
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QED_LLH_FILTER_TCP_DEST_PORT,
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QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT,
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QED_LLH_FILTER_UDP_SRC_PORT,
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QED_LLH_FILTER_UDP_DEST_PORT,
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QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT
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};
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/**
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* qed_llh_add_protocol_filter(): Add a LLH protocol filter into the
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* given filter bank.
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*
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* @cdev: Qed dev pointer.
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* @ppfid: Relative within the allocated ppfids ('0' is the default one).
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* @type: Type of filters and comparing.
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* @source_port_or_eth_type: Source port or ethertype to add.
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* @dest_port: Destination port to add.
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*
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* Return: Int.
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*/
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int
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qed_llh_add_protocol_filter(struct qed_dev *cdev,
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u8 ppfid,
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enum qed_llh_prot_filter_type_t type,
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u16 source_port_or_eth_type, u16 dest_port);
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/**
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* qed_llh_remove_protocol_filter(): Remove a LLH protocol filter from
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* the given filter bank.
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*
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* @cdev: Qed dev pointer.
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* @ppfid: Relative within the allocated ppfids ('0' is the default one).
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* @type: Type of filters and comparing.
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* @source_port_or_eth_type: Source port or ethertype to add.
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* @dest_port: Destination port to add.
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*/
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void
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qed_llh_remove_protocol_filter(struct qed_dev *cdev,
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u8 ppfid,
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enum qed_llh_prot_filter_type_t type,
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u16 source_port_or_eth_type, u16 dest_port);
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/**
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* qed_final_cleanup(): Cleanup of previous driver remains prior to load.
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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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* @id: For PF, engine-relative. For VF, PF-relative.
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* @is_vf: True iff cleanup is made for a VF.
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*
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* Return: Int.
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*/
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int qed_final_cleanup(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt, u16 id, bool is_vf);
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/**
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* qed_get_queue_coalesce(): Retrieve coalesce value for a given queue.
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*
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* @p_hwfn: HW device data.
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* @coal: Store coalesce value read from the hardware.
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* @handle: P_handle.
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*
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* Return: Int.
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**/
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int qed_get_queue_coalesce(struct qed_hwfn *p_hwfn, u16 *coal, void *handle);
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/**
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* qed_set_queue_coalesce(): Configure coalesce parameters for Rx and
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* Tx queue. The fact that we can configure coalescing to up to 511, but on
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* varying accuracy [the bigger the value the less accurate] up to a mistake
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* of 3usec for the highest values.
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* While the API allows setting coalescing per-qid, all queues sharing a SB
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* should be in same range [i.e., either 0-0x7f, 0x80-0xff or 0x100-0x1ff]
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* otherwise configuration would break.
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*
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* @rx_coal: Rx Coalesce value in micro seconds.
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* @tx_coal: TX Coalesce value in micro seconds.
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* @p_handle: P_handle.
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*
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* Return: Int.
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**/
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int
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qed_set_queue_coalesce(u16 rx_coal, u16 tx_coal, void *p_handle);
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/**
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* qed_pglueb_set_pfid_enable(): Enable or disable PCI BUS MASTER.
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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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* @b_enable: True/False.
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*
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* Return: Int.
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*/
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int qed_pglueb_set_pfid_enable(struct qed_hwfn *p_hwfn,
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struct qed_ptt *p_ptt, bool b_enable);
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/**
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* qed_db_recovery_add(): add doorbell information to the doorbell
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* recovery mechanism.
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*
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* @cdev: Qed dev pointer.
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* @db_addr: Doorbell address.
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* @db_data: Address of where db_data is stored.
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* @db_width: Doorbell is 32b pr 64b.
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* @db_space: Doorbell recovery addresses are user or kernel space.
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*
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* Return: Int.
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*/
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int qed_db_recovery_add(struct qed_dev *cdev,
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void __iomem *db_addr,
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void *db_data,
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enum qed_db_rec_width db_width,
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enum qed_db_rec_space db_space);
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/**
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* qed_db_recovery_del() - remove doorbell information from the doorbell
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* recovery mechanism. db_data serves as key (db_addr is not unique).
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*
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* @cdev: Qed dev pointer.
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* @db_addr: doorbell address.
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* @db_data: address where db_data is stored. Serves as key for the
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* entry to delete.
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*
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* Return: Int.
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*/
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int qed_db_recovery_del(struct qed_dev *cdev,
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void __iomem *db_addr, void *db_data);
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const char *qed_hw_get_resc_name(enum qed_resources res_id);
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#endif
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