linux-zen-desktop/drivers/net/ethernet/qlogic/qed/qed_dev_api.h

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2023-08-30 17:31:07 +02:00
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
/* QLogic qed NIC Driver
* Copyright (c) 2015-2017 QLogic Corporation
* Copyright (c) 2019-2020 Marvell International Ltd.
*/
#ifndef _QED_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"
/**
* qed_init_dp(): Initialize the debug level.
*
* @cdev: Qed dev pointer.
* @dp_module: Module debug parameter.
* @dp_level: Module debug level.
*
* Return: Void.
*/
void qed_init_dp(struct qed_dev *cdev,
u32 dp_module,
u8 dp_level);
/**
* qed_init_struct(): Initialize the device structure to
* its defaults.
*
* @cdev: Qed dev pointer.
*
* Return: Void.
*/
void qed_init_struct(struct qed_dev *cdev);
/**
* qed_resc_free: Free device resources.
*
* @cdev: Qed dev pointer.
*
* Return: Void.
*/
void qed_resc_free(struct qed_dev *cdev);
/**
* qed_resc_alloc(): Alloc device resources.
*
* @cdev: Qed dev pointer.
*
* Return: Int.
*/
int qed_resc_alloc(struct qed_dev *cdev);
/**
* qed_resc_setup(): Setup device resources.
*
* @cdev: Qed dev pointer.
*
* Return: Void.
*/
void qed_resc_setup(struct qed_dev *cdev);
enum qed_override_force_load {
QED_OVERRIDE_FORCE_LOAD_NONE,
QED_OVERRIDE_FORCE_LOAD_ALWAYS,
QED_OVERRIDE_FORCE_LOAD_NEVER,
};
struct qed_drv_load_params {
/* Indicates whether the driver is running over a crash kernel.
* As part of the load request, this will be used for providing the
* driver role to the MFW.
* In case of a crash kernel over PDA - this should be set to false.
*/
bool is_crash_kernel;
/* The timeout value that the MFW should use when locking the engine for
* the driver load process.
* A value of '0' means the default value, and '255' means no timeout.
*/
u8 mfw_timeout_val;
#define QED_LOAD_REQ_LOCK_TO_DEFAULT 0
#define QED_LOAD_REQ_LOCK_TO_NONE 255
/* Avoid engine reset when first PF loads on it */
bool avoid_eng_reset;
/* Allow overriding the default force load behavior */
enum qed_override_force_load override_force_load;
};
struct qed_hw_init_params {
/* Tunneling parameters */
struct qed_tunnel_info *p_tunn;
bool b_hw_start;
/* Interrupt mode [msix, inta, etc.] to use */
enum qed_int_mode int_mode;
/* NPAR tx switching to be used for vports for tx-switching */
bool allow_npar_tx_switch;
/* Binary fw data pointer in binary fw file */
const u8 *bin_fw_data;
/* Driver load parameters */
struct qed_drv_load_params *p_drv_load_params;
};
/**
* qed_hw_init(): Init Qed hardware.
*
* @cdev: Qed dev pointer.
* @p_params: Pointers to params.
*
* Return: Int.
*/
int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params);
/**
* qed_hw_timers_stop_all(): Stop the timers HW block.
*
* @cdev: Qed dev pointer.
*
* Return: void.
*/
void qed_hw_timers_stop_all(struct qed_dev *cdev);
/**
* qed_hw_stop(): Stop Qed hardware.
*
* @cdev: Qed dev pointer.
*
* Return: int.
*/
int qed_hw_stop(struct qed_dev *cdev);
/**
* qed_hw_stop_fastpath(): Should be called incase
* slowpath is still required for the device,
* but fastpath is not.
*
* @cdev: Qed dev pointer.
*
* Return: Int.
*/
int qed_hw_stop_fastpath(struct qed_dev *cdev);
/**
* qed_hw_start_fastpath(): Restart fastpath traffic,
* only if hw_stop_fastpath was called.
*
* @p_hwfn: HW device data.
*
* Return: Int.
*/
int qed_hw_start_fastpath(struct qed_hwfn *p_hwfn);
/**
* qed_hw_prepare(): Prepare Qed hardware.
*
* @cdev: Qed dev pointer.
* @personality: Personality to initialize.
*
* Return: Int.
*/
int qed_hw_prepare(struct qed_dev *cdev,
int personality);
/**
* qed_hw_remove(): Remove Qed hardware.
*
* @cdev: Qed dev pointer.
*
* Return: Void.
*/
void qed_hw_remove(struct qed_dev *cdev);
/**
* qed_ptt_acquire(): Allocate a PTT window.
*
* @p_hwfn: HW device data.
*
* Return: struct qed_ptt.
*
* Should be called at the entry point to the driver (at the beginning of an
* exported function).
*/
struct qed_ptt *qed_ptt_acquire(struct qed_hwfn *p_hwfn);
/**
* qed_ptt_release(): Release PTT Window.
*
* @p_hwfn: HW device data.
* @p_ptt: P_ptt.
*
* Return: Void.
*
* Should be called at the end of a flow - at the end of the function that
* acquired the 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
};
/**
* qed_dmae_host2grc(): Copy data from source addr to
* dmae registers using the given ptt.
*
* @p_hwfn: HW device data.
* @p_ptt: P_ptt.
* @source_addr: Source address.
* @grc_addr: GRC address (dmae_data_offset).
* @size_in_dwords: Size.
* @p_params: (default parameters will be used in case of NULL).
*
* Return: Int.
*/
int
qed_dmae_host2grc(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
u64 source_addr,
u32 grc_addr,
u32 size_in_dwords,
struct qed_dmae_params *p_params);
/**
* qed_dmae_grc2host(): Read data from dmae data offset
* to source address using the given ptt.
*
* @p_ptt: P_ptt.
* @grc_addr: GRC address (dmae_data_offset).
* @dest_addr: Destination Address.
* @size_in_dwords: Size.
* @p_params: (default parameters will be used in case of NULL).
*
* Return: Int.
*/
int qed_dmae_grc2host(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
u32 grc_addr, dma_addr_t dest_addr, u32 size_in_dwords,
struct qed_dmae_params *p_params);
/**
* qed_dmae_host2host(): Copy data from to source address
* to a destination adrress (for SRIOV) using the given
* ptt.
*
* @p_hwfn: HW device data.
* @p_ptt: P_ptt.
* @source_addr: Source address.
* @dest_addr: Destination address.
* @size_in_dwords: size.
* @p_params: (default parameters will be used in case of NULL).
*
* Return: Int.
*/
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);
int qed_chain_alloc(struct qed_dev *cdev, struct qed_chain *chain,
struct qed_chain_init_params *params);
void qed_chain_free(struct qed_dev *cdev, struct qed_chain *chain);
/**
* qed_fw_l2_queue(): Get absolute L2 queue ID.
*
* @p_hwfn: HW device data.
* @src_id: Relative to p_hwfn.
* @dst_id: Absolute per engine.
*
* Return: Int.
*/
int qed_fw_l2_queue(struct qed_hwfn *p_hwfn,
u16 src_id,
u16 *dst_id);
/**
* qed_fw_vport(): Get absolute vport ID.
*
* @p_hwfn: HW device data.
* @src_id: Relative to p_hwfn.
* @dst_id: Absolute per engine.
*
* Return: Int.
*/
int qed_fw_vport(struct qed_hwfn *p_hwfn,
u8 src_id,
u8 *dst_id);
/**
* qed_fw_rss_eng(): Get absolute RSS engine ID.
*
* @p_hwfn: HW device data.
* @src_id: Relative to p_hwfn.
* @dst_id: Absolute per engine.
*
* Return: Int.
*/
int qed_fw_rss_eng(struct qed_hwfn *p_hwfn,
u8 src_id,
u8 *dst_id);
/**
* qed_llh_get_num_ppfid(): Return the allocated number of LLH filter
* banks that are allocated to the PF.
*
* @cdev: Qed dev pointer.
*
* Return: u8 Number of LLH filter banks.
*/
u8 qed_llh_get_num_ppfid(struct qed_dev *cdev);
enum qed_eng {
QED_ENG0,
QED_ENG1,
QED_BOTH_ENG,
};
/**
* qed_llh_set_ppfid_affinity(): Set the engine affinity for the given
* LLH filter bank.
*
* @cdev: Qed dev pointer.
* @ppfid: Relative within the allocated ppfids ('0' is the default one).
* @eng: Engine.
*
* Return: Int.
*/
int qed_llh_set_ppfid_affinity(struct qed_dev *cdev,
u8 ppfid, enum qed_eng eng);
/**
* qed_llh_set_roce_affinity(): Set the RoCE engine affinity.
*
* @cdev: Qed dev pointer.
* @eng: Engine.
*
* Return: Int.
*/
int qed_llh_set_roce_affinity(struct qed_dev *cdev, enum qed_eng eng);
/**
* qed_llh_add_mac_filter(): Add a LLH MAC filter into the given filter
* bank.
*
* @cdev: Qed dev pointer.
* @ppfid: Relative within the allocated ppfids ('0' is the default one).
* @mac_addr: MAC to add.
*
* Return: Int.
*/
int qed_llh_add_mac_filter(struct qed_dev *cdev,
u8 ppfid, const u8 mac_addr[ETH_ALEN]);
/**
* qed_llh_remove_mac_filter(): Remove a LLH MAC filter from the given
* filter bank.
*
* @cdev: Qed dev pointer.
* @ppfid: Ppfid.
* @mac_addr: MAC to remove
*
* Return: Void.
*/
void qed_llh_remove_mac_filter(struct qed_dev *cdev,
u8 ppfid, u8 mac_addr[ETH_ALEN]);
enum qed_llh_prot_filter_type_t {
QED_LLH_FILTER_ETHERTYPE,
QED_LLH_FILTER_TCP_SRC_PORT,
QED_LLH_FILTER_TCP_DEST_PORT,
QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT,
QED_LLH_FILTER_UDP_SRC_PORT,
QED_LLH_FILTER_UDP_DEST_PORT,
QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT
};
/**
* qed_llh_add_protocol_filter(): Add a LLH protocol filter into the
* given filter bank.
*
* @cdev: Qed dev pointer.
* @ppfid: Relative within the allocated ppfids ('0' is the default one).
* @type: Type of filters and comparing.
* @source_port_or_eth_type: Source port or ethertype to add.
* @dest_port: Destination port to add.
*
* Return: Int.
*/
int
qed_llh_add_protocol_filter(struct qed_dev *cdev,
u8 ppfid,
enum qed_llh_prot_filter_type_t type,
u16 source_port_or_eth_type, u16 dest_port);
/**
* qed_llh_remove_protocol_filter(): Remove a LLH protocol filter from
* the given filter bank.
*
* @cdev: Qed dev pointer.
* @ppfid: Relative within the allocated ppfids ('0' is the default one).
* @type: Type of filters and comparing.
* @source_port_or_eth_type: Source port or ethertype to add.
* @dest_port: Destination port to add.
*/
void
qed_llh_remove_protocol_filter(struct qed_dev *cdev,
u8 ppfid,
enum qed_llh_prot_filter_type_t type,
u16 source_port_or_eth_type, u16 dest_port);
/**
* qed_final_cleanup(): Cleanup of previous driver remains prior to load.
*
* @p_hwfn: HW device data.
* @p_ptt: P_ptt.
* @id: For PF, engine-relative. For VF, PF-relative.
* @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);
/**
* qed_get_queue_coalesce(): Retrieve coalesce value for a given queue.
*
* @p_hwfn: HW device data.
* @coal: Store coalesce value read from the hardware.
* @handle: P_handle.
*
* Return: Int.
**/
int qed_get_queue_coalesce(struct qed_hwfn *p_hwfn, u16 *coal, void *handle);
/**
* qed_set_queue_coalesce(): Configure coalesce parameters for Rx and
* Tx queue. The fact that we can configure coalescing to up to 511, but on
* varying accuracy [the bigger the value the less accurate] up to a mistake
* of 3usec for the highest values.
* While the API allows setting coalescing per-qid, all queues sharing a SB
* should be in same range [i.e., either 0-0x7f, 0x80-0xff or 0x100-0x1ff]
* otherwise configuration would break.
*
* @rx_coal: Rx Coalesce value in micro seconds.
* @tx_coal: TX Coalesce value in micro seconds.
* @p_handle: P_handle.
*
* Return: Int.
**/
int
qed_set_queue_coalesce(u16 rx_coal, u16 tx_coal, void *p_handle);
/**
* qed_pglueb_set_pfid_enable(): Enable or disable PCI BUS MASTER.
*
* @p_hwfn: HW device data.
* @p_ptt: P_ptt.
* @b_enable: True/False.
*
* Return: Int.
*/
int qed_pglueb_set_pfid_enable(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, bool b_enable);
/**
* qed_db_recovery_add(): add doorbell information to the doorbell
* recovery mechanism.
*
* @cdev: Qed dev pointer.
* @db_addr: Doorbell address.
* @db_data: Address of where db_data is stored.
* @db_width: Doorbell is 32b pr 64b.
* @db_space: Doorbell recovery addresses are user or kernel space.
*
* Return: Int.
*/
int qed_db_recovery_add(struct qed_dev *cdev,
void __iomem *db_addr,
void *db_data,
enum qed_db_rec_width db_width,
enum qed_db_rec_space db_space);
/**
* qed_db_recovery_del() - remove doorbell information from the doorbell
* recovery mechanism. db_data serves as key (db_addr is not unique).
*
* @cdev: Qed dev pointer.
* @db_addr: doorbell address.
* @db_data: address where db_data is stored. Serves as key for the
* entry to delete.
*
* Return: Int.
*/
int qed_db_recovery_del(struct qed_dev *cdev,
void __iomem *db_addr, void *db_data);
const char *qed_hw_get_resc_name(enum qed_resources res_id);
#endif