/* bnx2fc_hwi.c: QLogic Linux FCoE offload driver. * This file contains the code that low level functions that interact * with 57712 FCoE firmware. * * Copyright (c) 2008-2013 Broadcom Corporation * Copyright (c) 2014-2016 QLogic Corporation * Copyright (c) 2016-2017 Cavium Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation. * * Written by: Bhanu Prakash Gollapudi ([email protected]) */ #include "bnx2fc.h" DECLARE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba, struct fcoe_kcqe *new_cqe_kcqe); static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba, struct fcoe_kcqe *ofld_kcqe); static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba, struct fcoe_kcqe *ofld_kcqe); static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code); static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba, struct fcoe_kcqe *destroy_kcqe); int bnx2fc_send_stat_req(struct bnx2fc_hba *hba) { … } /** * bnx2fc_send_fw_fcoe_init_msg - initiates initial handshake with FCoE f/w * * @hba: adapter structure pointer * * Send down FCoE firmware init KWQEs which initiates the initial handshake * with the f/w. * */ int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba) { … } int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba) { … } /** * bnx2fc_send_session_ofld_req - initiates FCoE Session offload process * * @port: port structure pointer * @tgt: bnx2fc_rport structure pointer */ int bnx2fc_send_session_ofld_req(struct fcoe_port *port, struct bnx2fc_rport *tgt) { … } /** * bnx2fc_send_session_enable_req - initiates FCoE Session enablement * * @port: port structure pointer * @tgt: bnx2fc_rport structure pointer */ int bnx2fc_send_session_enable_req(struct fcoe_port *port, struct bnx2fc_rport *tgt) { … } /** * bnx2fc_send_session_disable_req - initiates FCoE Session disable * * @port: port structure pointer * @tgt: bnx2fc_rport structure pointer */ int bnx2fc_send_session_disable_req(struct fcoe_port *port, struct bnx2fc_rport *tgt) { … } /** * bnx2fc_send_session_destroy_req - initiates FCoE Session destroy * * @hba: adapter structure pointer * @tgt: bnx2fc_rport structure pointer */ int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba, struct bnx2fc_rport *tgt) { … } static bool is_valid_lport(struct bnx2fc_hba *hba, struct fc_lport *lport) { … } static void bnx2fc_unsol_els_work(struct work_struct *work) { … } void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt, unsigned char *buf, u32 frame_len, u16 l2_oxid) { … } static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) { … } void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe, unsigned char *rq_data, u8 num_rq, struct fcoe_task_ctx_entry *task) { … } void bnx2fc_arm_cq(struct bnx2fc_rport *tgt) { … } static struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe, unsigned char *rq_data, u8 num_rq, struct fcoe_task_ctx_entry *task) { … } /* Pending work request completion */ static bool bnx2fc_pending_work(struct bnx2fc_rport *tgt, unsigned int wqe) { … } int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt) { … } /** * bnx2fc_fastpath_notification - process global event queue (KCQ) * * @hba: adapter structure pointer * @new_cqe_kcqe: pointer to newly DMA'd KCQ entry * * Fast path event notification handler */ static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba, struct fcoe_kcqe *new_cqe_kcqe) { … } /** * bnx2fc_process_ofld_cmpl - process FCoE session offload completion * * @hba: adapter structure pointer * @ofld_kcqe: connection offload kcqe pointer * * handle session offload completion, enable the session if offload is * successful. */ static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba, struct fcoe_kcqe *ofld_kcqe) { … } /** * bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion * * @hba: adapter structure pointer * @ofld_kcqe: connection offload kcqe pointer * * handle session enable completion, mark the rport as ready */ static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba, struct fcoe_kcqe *ofld_kcqe) { … } static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba, struct fcoe_kcqe *disable_kcqe) { … } static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba, struct fcoe_kcqe *destroy_kcqe) { … } static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code) { … } /** * bnx2fc_indicate_kcqe() - process KCQE * * @context: adapter structure pointer * @kcq: kcqe pointer * @num_cqe: Number of completion queue elements * * Generic KCQ event handler */ void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[], u32 num_cqe) { … } void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid) { … } void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt) { … } int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt) { … } char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items) { … } void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items) { … } void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnp_req, struct fcoe_task_ctx_entry *task, struct bnx2fc_cmd *orig_io_req, u32 offset) { … } void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req, struct fcoe_task_ctx_entry *task, u16 orig_xid) { … } void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req, struct fcoe_task_ctx_entry *task) { … } void bnx2fc_init_task(struct bnx2fc_cmd *io_req, struct fcoe_task_ctx_entry *task) { … } /** * bnx2fc_setup_task_ctx - allocate and map task context * * @hba: pointer to adapter structure * * allocate memory for task context, and associated BD table to be used * by firmware * */ int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba) { … } void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba) { … } static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba) { … } static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba) { … } /** * bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer * * @hba: Pointer to adapter structure * */ int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba) { … } void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba) { … }
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