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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Copyright (C) 2021 Broadcom. All Rights Reserved. The term4 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.5 */6 7#if !defined(__EFC_NODE_H__)8#define __EFC_NODE_H__9#include "scsi/fc/fc_ns.h"10 11#define EFC_NODEDB_PAUSE_FABRIC_LOGIN (1 << 0)12#define EFC_NODEDB_PAUSE_NAMESERVER (1 << 1)13#define EFC_NODEDB_PAUSE_NEW_NODES (1 << 2)14 15#define MAX_ACC_REJECT_PAYLOAD sizeof(struct fc_els_ls_rjt)16 17#define scsi_io_printf(io, fmt, ...) \18 efc_log_debug(io->efc, "[%s] [%04x][i:%04x t:%04x h:%04x]" fmt, \19 io->node->display_name, io->instance_index, io->init_task_tag, \20 io->tgt_task_tag, io->hw_tag, ##__VA_ARGS__)21 22static inline void23efc_node_evt_set(struct efc_sm_ctx *ctx, enum efc_sm_event evt,24 const char *handler)25{26 struct efc_node *node = ctx->app;27 28 if (evt == EFC_EVT_ENTER) {29 strscpy_pad(node->current_state_name, handler,30 sizeof(node->current_state_name));31 } else if (evt == EFC_EVT_EXIT) {32 memcpy(node->prev_state_name, node->current_state_name,33 sizeof(node->prev_state_name));34 strscpy_pad(node->current_state_name, "invalid",35 sizeof(node->current_state_name));36 }37 node->prev_evt = node->current_evt;38 node->current_evt = evt;39}40 41/**42 * hold frames in pending frame list43 *44 * Unsolicited receive frames are held on the node pending frame list,45 * rather than being processed.46 */47 48static inline void49efc_node_hold_frames(struct efc_node *node)50{51 node->hold_frames = true;52}53 54/**55 * accept frames56 *57 * Unsolicited receive frames processed rather than being held on the node58 * pending frame list.59 */60 61static inline void62efc_node_accept_frames(struct efc_node *node)63{64 node->hold_frames = false;65}66 67/*68 * Node initiator/target enable defines69 * All combinations of the SLI port (nport) initiator/target enable,70 * and remote node initiator/target enable are enumerated.71 * ex: EFC_NODE_ENABLE_T_TO_IT decodes to target mode is enabled on SLI port72 * and I+T is enabled on remote node.73 */74enum efc_node_enable {75 EFC_NODE_ENABLE_x_TO_x,76 EFC_NODE_ENABLE_x_TO_T,77 EFC_NODE_ENABLE_x_TO_I,78 EFC_NODE_ENABLE_x_TO_IT,79 EFC_NODE_ENABLE_T_TO_x,80 EFC_NODE_ENABLE_T_TO_T,81 EFC_NODE_ENABLE_T_TO_I,82 EFC_NODE_ENABLE_T_TO_IT,83 EFC_NODE_ENABLE_I_TO_x,84 EFC_NODE_ENABLE_I_TO_T,85 EFC_NODE_ENABLE_I_TO_I,86 EFC_NODE_ENABLE_I_TO_IT,87 EFC_NODE_ENABLE_IT_TO_x,88 EFC_NODE_ENABLE_IT_TO_T,89 EFC_NODE_ENABLE_IT_TO_I,90 EFC_NODE_ENABLE_IT_TO_IT,91};92 93static inline enum efc_node_enable94efc_node_get_enable(struct efc_node *node)95{96 u32 retval = 0;97 98 if (node->nport->enable_ini)99 retval |= (1U << 3);100 if (node->nport->enable_tgt)101 retval |= (1U << 2);102 if (node->init)103 retval |= (1U << 1);104 if (node->targ)105 retval |= (1U << 0);106 return (enum efc_node_enable)retval;107}108 109int110efc_node_check_els_req(struct efc_sm_ctx *ctx,111 enum efc_sm_event evt, void *arg,112 u8 cmd, void (*efc_node_common_func)(const char *,113 struct efc_sm_ctx *, enum efc_sm_event, void *),114 const char *funcname);115int116efc_node_check_ns_req(struct efc_sm_ctx *ctx,117 enum efc_sm_event evt, void *arg,118 u16 cmd, void (*efc_node_common_func)(const char *,119 struct efc_sm_ctx *, enum efc_sm_event, void *),120 const char *funcname);121int122efc_node_attach(struct efc_node *node);123struct efc_node *124efc_node_alloc(struct efc_nport *nport, u32 port_id,125 bool init, bool targ);126void127efc_node_free(struct efc_node *efc);128void129efc_node_update_display_name(struct efc_node *node);130void efc_node_post_event(struct efc_node *node, enum efc_sm_event evt,131 void *arg);132 133void134__efc_node_shutdown(struct efc_sm_ctx *ctx,135 enum efc_sm_event evt, void *arg);136void137__efc_node_wait_node_free(struct efc_sm_ctx *ctx,138 enum efc_sm_event evt, void *arg);139void140__efc_node_wait_els_shutdown(struct efc_sm_ctx *ctx,141 enum efc_sm_event evt, void *arg);142void143__efc_node_wait_ios_shutdown(struct efc_sm_ctx *ctx,144 enum efc_sm_event evt, void *arg);145void146efc_node_save_sparms(struct efc_node *node, void *payload);147void148efc_node_transition(struct efc_node *node,149 void (*state)(struct efc_sm_ctx *, enum efc_sm_event,150 void *), void *data);151void152__efc_node_common(const char *funcname, struct efc_sm_ctx *ctx,153 enum efc_sm_event evt, void *arg);154 155void156efc_node_initiate_cleanup(struct efc_node *node);157 158void159efc_node_build_eui_name(char *buf, u32 buf_len, uint64_t eui_name);160 161void162efc_node_pause(struct efc_node *node,163 void (*state)(struct efc_sm_ctx *ctx,164 enum efc_sm_event evt, void *arg));165void166__efc_node_paused(struct efc_sm_ctx *ctx,167 enum efc_sm_event evt, void *arg);168int169efc_node_active_ios_empty(struct efc_node *node);170void171efc_node_send_ls_io_cleanup(struct efc_node *node);172 173int174efc_els_io_list_empty(struct efc_node *node, struct list_head *list);175 176void177efc_process_node_pending(struct efc_node *domain);178 179u64 efc_node_get_wwnn(struct efc_node *node);180struct efc_node *181efc_node_find(struct efc_nport *nport, u32 id);182void183efc_node_post_els_resp(struct efc_node *node, u32 evt, void *arg);184void185efc_node_recv_els_frame(struct efc_node *node, struct efc_hw_sequence *s);186void187efc_node_recv_ct_frame(struct efc_node *node, struct efc_hw_sequence *seq);188void189efc_node_recv_fcp_cmd(struct efc_node *node, struct efc_hw_sequence *seq);190 191#endif /* __EFC_NODE_H__ */192