/* 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 { … }; struct qed_drv_load_params { … }; struct qed_hw_init_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_acquire_context(): Allocate a PTT window honoring the context * atomicy. * * @p_hwfn: HW device data. * @is_atomic: Hint from the caller - if the func can sleep or not. * * Context: The function should not sleep in case is_atomic == true. * 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_context(struct qed_hwfn *p_hwfn, bool is_atomic); /** * 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_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_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_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
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