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189 lines
4.7 KiB
189 lines
4.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright (C) 2021 Broadcom. All Rights Reserved. The term |
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* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. |
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*/ |
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#ifndef __EFCT_LIO_H__ |
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#define __EFCT_LIO_H__ |
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#include "efct_scsi.h" |
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#include <target/target_core_base.h> |
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#define efct_lio_io_printf(io, fmt, ...) \ |
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efc_log_debug(io->efct, \ |
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"[%s] [%04x][i:%04x t:%04x h:%04x]" fmt,\ |
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io->node->display_name, io->instance_index, \ |
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io->init_task_tag, io->tgt_task_tag, io->hw_tag,\ |
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##__VA_ARGS__) |
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#define efct_lio_tmfio_printf(io, fmt, ...) \ |
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efc_log_debug(io->efct, \ |
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"[%s] [%04x][i:%04x t:%04x h:%04x][f:%02x]" fmt,\ |
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io->node->display_name, io->instance_index, \ |
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io->init_task_tag, io->tgt_task_tag, io->hw_tag,\ |
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io->tgt_io.tmf, ##__VA_ARGS__) |
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#define efct_set_lio_io_state(io, value) (io->tgt_io.state |= value) |
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struct efct_lio_wq_data { |
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struct efct *efct; |
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void *ptr; |
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struct work_struct work; |
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}; |
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/* Target private efct structure */ |
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struct efct_scsi_tgt { |
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u32 max_sge; |
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u32 max_sgl; |
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/* |
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* Variables used to send task set full. We are using a high watermark |
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* method to send task set full. We will reserve a fixed number of IOs |
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* per initiator plus a fudge factor. Once we reach this number, |
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* then the target will start sending task set full/busy responses. |
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*/ |
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atomic_t initiator_count; |
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atomic_t ios_in_use; |
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atomic_t io_high_watermark; |
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atomic_t watermark_hit; |
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int watermark_min; |
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int watermark_max; |
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struct efct_lio_nport *lio_nport; |
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struct efct_lio_tpg *tpg; |
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struct list_head vport_list; |
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/* Protects vport list*/ |
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spinlock_t efct_lio_lock; |
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u64 wwnn; |
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}; |
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struct efct_scsi_tgt_nport { |
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struct efct_lio_nport *lio_nport; |
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}; |
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struct efct_node { |
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struct list_head list_entry; |
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struct kref ref; |
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void (*release)(struct kref *arg); |
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struct efct *efct; |
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struct efc_node *node; |
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struct se_session *session; |
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spinlock_t active_ios_lock; |
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struct list_head active_ios; |
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char display_name[EFC_NAME_LENGTH]; |
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u32 port_fc_id; |
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u32 node_fc_id; |
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u32 vpi; |
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u32 rpi; |
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u32 abort_cnt; |
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}; |
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#define EFCT_LIO_STATE_SCSI_RECV_CMD (1 << 0) |
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#define EFCT_LIO_STATE_TGT_SUBMIT_CMD (1 << 1) |
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#define EFCT_LIO_STATE_TFO_QUEUE_DATA_IN (1 << 2) |
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#define EFCT_LIO_STATE_TFO_WRITE_PENDING (1 << 3) |
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#define EFCT_LIO_STATE_TGT_EXECUTE_CMD (1 << 4) |
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#define EFCT_LIO_STATE_SCSI_SEND_RD_DATA (1 << 5) |
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#define EFCT_LIO_STATE_TFO_CHK_STOP_FREE (1 << 6) |
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#define EFCT_LIO_STATE_SCSI_DATA_DONE (1 << 7) |
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#define EFCT_LIO_STATE_TFO_QUEUE_STATUS (1 << 8) |
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#define EFCT_LIO_STATE_SCSI_SEND_RSP (1 << 9) |
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#define EFCT_LIO_STATE_SCSI_RSP_DONE (1 << 10) |
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#define EFCT_LIO_STATE_TGT_GENERIC_FREE (1 << 11) |
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#define EFCT_LIO_STATE_SCSI_RECV_TMF (1 << 12) |
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#define EFCT_LIO_STATE_TGT_SUBMIT_TMR (1 << 13) |
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#define EFCT_LIO_STATE_TFO_WRITE_PEND_STATUS (1 << 14) |
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#define EFCT_LIO_STATE_TGT_GENERIC_REQ_FAILURE (1 << 15) |
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#define EFCT_LIO_STATE_TFO_ABORTED_TASK (1 << 29) |
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#define EFCT_LIO_STATE_TFO_RELEASE_CMD (1 << 30) |
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#define EFCT_LIO_STATE_SCSI_CMPL_CMD (1u << 31) |
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struct efct_scsi_tgt_io { |
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struct se_cmd cmd; |
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unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER]; |
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enum dma_data_direction ddir; |
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int task_attr; |
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u64 lun; |
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u32 state; |
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u8 tmf; |
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struct efct_io *io_to_abort; |
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u32 seg_map_cnt; |
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u32 seg_cnt; |
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u32 cur_seg; |
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enum efct_scsi_io_status err; |
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bool aborting; |
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bool rsp_sent; |
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u32 transferred_len; |
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}; |
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/* Handler return codes */ |
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enum { |
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SCSI_HANDLER_DATAPHASE_STARTED = 1, |
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SCSI_HANDLER_RESP_STARTED, |
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SCSI_HANDLER_VALIDATED_DATAPHASE_STARTED, |
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SCSI_CMD_NOT_SUPPORTED, |
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}; |
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#define WWN_NAME_LEN 32 |
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struct efct_lio_vport { |
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u64 wwpn; |
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u64 npiv_wwpn; |
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u64 npiv_wwnn; |
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unsigned char wwpn_str[WWN_NAME_LEN]; |
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struct se_wwn vport_wwn; |
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struct efct_lio_tpg *tpg; |
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struct efct *efct; |
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struct Scsi_Host *shost; |
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struct fc_vport *fc_vport; |
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atomic_t enable; |
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}; |
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struct efct_lio_nport { |
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u64 wwpn; |
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unsigned char wwpn_str[WWN_NAME_LEN]; |
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struct se_wwn nport_wwn; |
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struct efct_lio_tpg *tpg; |
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struct efct *efct; |
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atomic_t enable; |
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}; |
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struct efct_lio_tpg_attrib { |
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u32 generate_node_acls; |
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u32 cache_dynamic_acls; |
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u32 demo_mode_write_protect; |
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u32 prod_mode_write_protect; |
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u32 demo_mode_login_only; |
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bool session_deletion_wait; |
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}; |
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struct efct_lio_tpg { |
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struct se_portal_group tpg; |
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struct efct_lio_nport *nport; |
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struct efct_lio_vport *vport; |
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struct efct_lio_tpg_attrib tpg_attrib; |
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unsigned short tpgt; |
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bool enabled; |
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}; |
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struct efct_lio_nacl { |
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u64 nport_wwnn; |
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char nport_name[WWN_NAME_LEN]; |
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struct se_session *session; |
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struct se_node_acl se_node_acl; |
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}; |
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struct efct_lio_vport_list_t { |
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struct list_head list_entry; |
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struct efct_lio_vport *lio_vport; |
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}; |
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int efct_scsi_tgt_driver_init(void); |
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int efct_scsi_tgt_driver_exit(void); |
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#endif /*__EFCT_LIO_H__ */
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