359 lines
7.9 KiB
C
359 lines
7.9 KiB
C
/* QLogic qed NIC Driver
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* Copyright (c) 2015 QLogic Corporation
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*
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* This software is available under the terms of the GNU General Public License
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* (GPL) Version 2, available from the file COPYING in the main directory of
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* this source tree.
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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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* @brief qed_init_dp - initialize the debug level
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*
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* @param cdev
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* @param dp_module
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* @param dp_level
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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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* @brief qed_init_struct - initialize the device structure to
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* its defaults
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*
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* @param cdev
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*/
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void qed_init_struct(struct qed_dev *cdev);
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/**
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* @brief qed_resc_free -
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*
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* @param cdev
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*/
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void qed_resc_free(struct qed_dev *cdev);
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/**
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* @brief qed_resc_alloc -
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*
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* @param cdev
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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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* @brief qed_resc_setup -
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*
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* @param cdev
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*/
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void qed_resc_setup(struct qed_dev *cdev);
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/**
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* @brief qed_hw_init -
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*
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* @param cdev
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* @param p_tunn
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* @param b_hw_start
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* @param int_mode - interrupt mode [msix, inta, etc.] to use.
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* @param allow_npar_tx_switch - npar tx switching to be used
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* for vports configured for tx-switching.
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* @param bin_fw_data - binary fw data pointer in binary fw file.
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* Pass NULL if not using binary fw file.
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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,
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struct qed_tunn_start_params *p_tunn,
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bool b_hw_start,
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enum qed_int_mode int_mode,
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bool allow_npar_tx_switch,
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const u8 *bin_fw_data);
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/**
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* @brief qed_hw_timers_stop_all - stop the timers HW block
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*
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* @param cdev
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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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* @brief qed_hw_stop -
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*
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* @param cdev
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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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* @brief 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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* @param cdev
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*
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*/
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void qed_hw_stop_fastpath(struct qed_dev *cdev);
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/**
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* @brief 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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* @param cdev
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*
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*/
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void qed_hw_start_fastpath(struct qed_hwfn *p_hwfn);
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/**
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* @brief qed_hw_reset -
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*
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* @param cdev
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*
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* @return int
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*/
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int qed_hw_reset(struct qed_dev *cdev);
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/**
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* @brief qed_hw_prepare -
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*
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* @param cdev
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* @param 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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* @brief qed_hw_remove -
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*
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* @param cdev
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*/
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void qed_hw_remove(struct qed_dev *cdev);
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/**
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* @brief qed_ptt_acquire - Allocate a PTT window
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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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* @param p_hwfn
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*
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* @return struct qed_ptt
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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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* @brief qed_ptt_release - Release PTT Window
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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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*
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* @param p_hwfn
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* @param p_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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/* value of flags If QED_DMAE_FLAG_RW_REPL_SRC flag is set and the
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* source is a block of length DMAE_MAX_RW_SIZE and the
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* destination is larger, the source block will be duplicated as
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* many times as required to fill the destination block. This is
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* used mostly to write a zeroed buffer to destination address
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* using DMA
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*/
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#define QED_DMAE_FLAG_RW_REPL_SRC 0x00000001
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#define QED_DMAE_FLAG_VF_SRC 0x00000002
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#define QED_DMAE_FLAG_VF_DST 0x00000004
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#define QED_DMAE_FLAG_COMPLETION_DST 0x00000008
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struct qed_dmae_params {
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u32 flags; /* consists of QED_DMAE_FLAG_* values */
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u8 src_vfid;
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u8 dst_vfid;
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};
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/**
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* @brief 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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* @param p_hwfn
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* @param p_ptt
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* @param source_addr
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* @param grc_addr (dmae_data_offset)
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* @param size_in_dwords
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* @param flags (one of the flags defined above)
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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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u32 flags);
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/**
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* @brief 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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* @param p_ptt
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* @param grc_addr (dmae_data_offset)
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* @param dest_addr
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* @param size_in_dwords
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* @param flags - one of the flags defined above
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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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u32 flags);
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/**
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* @brief qed_dmae_host2host - copy data from to source address
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* to a destination adress (for SRIOV) using the given ptt
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*
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* @param p_hwfn
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* @param p_ptt
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* @param source_addr
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* @param dest_addr
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* @param size_in_dwords
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* @param params
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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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/**
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* @brief qed_chain_alloc - Allocate and initialize a chain
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*
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* @param p_hwfn
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* @param intended_use
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* @param mode
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* @param num_elems
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* @param elem_size
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* @param p_chain
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*
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* @return int
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*/
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int
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qed_chain_alloc(struct qed_dev *cdev,
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enum qed_chain_use_mode intended_use,
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enum qed_chain_mode mode,
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enum qed_chain_cnt_type cnt_type,
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u32 num_elems, size_t elem_size, struct qed_chain *p_chain);
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/**
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* @brief qed_chain_free - Free chain DMA memory
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*
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* @param p_hwfn
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* @param p_chain
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*/
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void qed_chain_free(struct qed_dev *cdev, struct qed_chain *p_chain);
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/**
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* @@brief qed_fw_l2_queue - Get absolute L2 queue ID
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*
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* @param p_hwfn
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* @param src_id - relative to p_hwfn
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* @param 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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* @@brief qed_fw_vport - Get absolute vport ID
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*
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* @param p_hwfn
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* @param src_id - relative to p_hwfn
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* @param 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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* @@brief qed_fw_rss_eng - Get absolute RSS engine ID
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*
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* @param p_hwfn
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* @param src_id - relative to p_hwfn
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* @param 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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* *@brief Cleanup of previous driver remains prior to load
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*
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* @param p_hwfn
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* @param p_ptt
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* @param id - For PF, engine-relative. For VF, PF-relative.
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* @param 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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* @brief qed_set_rxq_coalesce - Configure coalesce parameters for an Rx queue
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* The fact that we can configure coalescing to up to 511, but on varying
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* accuracy [the bigger the value the less accurate] up to a mistake of 3usec
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* for the highest values.
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*
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* @param p_hwfn
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* @param p_ptt
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* @param coalesce - Coalesce value in micro seconds.
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* @param qid - Queue index.
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* @param qid - SB Id
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*
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* @return int
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*/
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int qed_set_rxq_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
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u16 coalesce, u8 qid, u16 sb_id);
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/**
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* @brief qed_set_txq_coalesce - Configure coalesce parameters for a Tx queue
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* While the API allows setting coalescing per-qid, all tx queues sharing a
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* SB 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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* @param p_hwfn
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* @param p_ptt
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* @param coalesce - Coalesce value in micro seconds.
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* @param qid - Queue index.
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* @param qid - SB Id
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*
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* @return int
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*/
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int qed_set_txq_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
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u16 coalesce, u8 qid, u16 sb_id);
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#endif
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