Release 4.7 drivers/net/ethernet/qlogic/qed/qed_dev_api.h
/* QLogic qed NIC Driver
* Copyright (c) 2015 QLogic Corporation
*
* This software is available 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.
*/
#ifndef _QED_DEV_API_H
#define _QED_DEV_API_H
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/qed/qed_chain.h>
#include <linux/qed/qed_if.h>
#include "qed_int.h"
/**
* @brief qed_init_dp - initialize the debug level
*
* @param cdev
* @param dp_module
* @param dp_level
*/
void qed_init_dp(struct qed_dev *cdev,
u32 dp_module,
u8 dp_level);
/**
* @brief qed_init_struct - initialize the device structure to
* its defaults
*
* @param cdev
*/
void qed_init_struct(struct qed_dev *cdev);
/**
* @brief qed_resc_free -
*
* @param cdev
*/
void qed_resc_free(struct qed_dev *cdev);
/**
* @brief qed_resc_alloc -
*
* @param cdev
*
* @return int
*/
int qed_resc_alloc(struct qed_dev *cdev);
/**
* @brief qed_resc_setup -
*
* @param cdev
*/
void qed_resc_setup(struct qed_dev *cdev);
/**
* @brief qed_hw_init -
*
* @param cdev
* @param p_tunn
* @param b_hw_start
* @param int_mode - interrupt mode [msix, inta, etc.] to use.
* @param allow_npar_tx_switch - npar tx switching to be used
* for vports configured for tx-switching.
* @param bin_fw_data - binary fw data pointer in binary fw file.
* Pass NULL if not using binary fw file.
*
* @return int
*/
int qed_hw_init(struct qed_dev *cdev,
struct qed_tunn_start_params *p_tunn,
bool b_hw_start,
enum qed_int_mode int_mode,
bool allow_npar_tx_switch,
const u8 *bin_fw_data);
/**
* @brief qed_hw_timers_stop_all - stop the timers HW block
*
* @param cdev
*
* @return void
*/
void qed_hw_timers_stop_all(struct qed_dev *cdev);
/**
* @brief qed_hw_stop -
*
* @param cdev
*
* @return int
*/
int qed_hw_stop(struct qed_dev *cdev);
/**
* @brief qed_hw_stop_fastpath -should be called incase
* slowpath is still required for the device,
* but fastpath is not.
*
* @param cdev
*
*/
void qed_hw_stop_fastpath(struct qed_dev *cdev);
/**
* @brief qed_hw_start_fastpath -restart fastpath traffic,
* only if hw_stop_fastpath was called
*
* @param cdev
*
*/
void qed_hw_start_fastpath(struct qed_hwfn *p_hwfn);
/**
* @brief qed_hw_reset -
*
* @param cdev
*
* @return int
*/
int qed_hw_reset(struct qed_dev *cdev);
/**
* @brief qed_hw_prepare -
*
* @param cdev
* @param personality - personality to initialize
*
* @return int
*/
int qed_hw_prepare(struct qed_dev *cdev,
int personality);
/**
* @brief qed_hw_remove -
*
* @param cdev
*/
void qed_hw_remove(struct qed_dev *cdev);
/**
* @brief qed_ptt_acquire - Allocate a PTT window
*
* Should be called at the entry point to the driver (at the beginning of an
* exported function)
*
* @param p_hwfn
*
* @return struct qed_ptt
*/
struct qed_ptt *qed_ptt_acquire(struct qed_hwfn *p_hwfn);
/**
* @brief qed_ptt_release - Release PTT Window
*
* Should be called at the end of a flow - at the end of the function that
* acquired the PTT.
*
*
* @param p_hwfn
* @param p_ptt
*/
void qed_ptt_release(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt);
void qed_reset_vport_stats(struct qed_dev *cdev);
enum qed_dmae_address_type_t {
QED_DMAE_ADDRESS_HOST_VIRT,
QED_DMAE_ADDRESS_HOST_PHYS,
QED_DMAE_ADDRESS_GRC
};
/* value of flags If QED_DMAE_FLAG_RW_REPL_SRC flag is set and the
* source is a block of length DMAE_MAX_RW_SIZE and the
* destination is larger, the source block will be duplicated as
* many times as required to fill the destination block. This is
* used mostly to write a zeroed buffer to destination address
* using DMA
*/
#define QED_DMAE_FLAG_RW_REPL_SRC 0x00000001
#define QED_DMAE_FLAG_VF_SRC 0x00000002
#define QED_DMAE_FLAG_VF_DST 0x00000004
#define QED_DMAE_FLAG_COMPLETION_DST 0x00000008
struct qed_dmae_params {
u32 flags; /* consists of QED_DMAE_FLAG_* values */
u8 src_vfid;
u8 dst_vfid;
};
/**
* @brief qed_dmae_host2grc - copy data from source addr to
* dmae registers using the given ptt
*
* @param p_hwfn
* @param p_ptt
* @param source_addr
* @param grc_addr (dmae_data_offset)
* @param size_in_dwords
* @param flags (one of the flags defined above)
*/
int
qed_dmae_host2grc(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u64 source_addr,
u32 grc_addr,
u32 size_in_dwords,
u32 flags);
/**
* @brief qed_dmae_host2host - copy data from to source address
* to a destination adress (for SRIOV) using the given ptt
*
* @param p_hwfn
* @param p_ptt
* @param source_addr
* @param dest_addr
* @param size_in_dwords
* @param params
*/
int qed_dmae_host2host(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
dma_addr_t source_addr,
dma_addr_t dest_addr,
u32 size_in_dwords, struct qed_dmae_params *p_params);
/**
* @brief qed_chain_alloc - Allocate and initialize a chain
*
* @param p_hwfn
* @param intended_use
* @param mode
* @param num_elems
* @param elem_size
* @param p_chain
*
* @return int
*/
int
qed_chain_alloc(struct qed_dev *cdev,
enum qed_chain_use_mode intended_use,
enum qed_chain_mode mode,
u16 num_elems,
size_t elem_size,
struct qed_chain *p_chain);
/**
* @brief qed_chain_free - Free chain DMA memory
*
* @param p_hwfn
* @param p_chain
*/
void qed_chain_free(struct qed_dev *cdev,
struct qed_chain *p_chain);
/**
* @@brief qed_fw_l2_queue - Get absolute L2 queue ID
*
* @param p_hwfn
* @param src_id - relative to p_hwfn
* @param dst_id - absolute per engine
*
* @return int
*/
int qed_fw_l2_queue(struct qed_hwfn *p_hwfn,
u16 src_id,
u16 *dst_id);
/**
* @@brief qed_fw_vport - Get absolute vport ID
*
* @param p_hwfn
* @param src_id - relative to p_hwfn
* @param dst_id - absolute per engine
*
* @return int
*/
int qed_fw_vport(struct qed_hwfn *p_hwfn,
u8 src_id,
u8 *dst_id);
/**
* @@brief qed_fw_rss_eng - Get absolute RSS engine ID
*
* @param p_hwfn
* @param src_id - relative to p_hwfn
* @param dst_id - absolute per engine
*
* @return int
*/
int qed_fw_rss_eng(struct qed_hwfn *p_hwfn,
u8 src_id,
u8 *dst_id);
/**
* *@brief Cleanup of previous driver remains prior to load
*
* @param p_hwfn
* @param p_ptt
* @param id - For PF, engine-relative. For VF, PF-relative.
* @param is_vf - true iff cleanup is made for a VF.
*
* @return int
*/
int qed_final_cleanup(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u16 id, bool is_vf);
#endif
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