Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Bhanu Prakash Gollapudi | 2146 | 94.08% | 17 | 48.57% |
Javed Hasan | 38 | 1.67% | 1 | 2.86% |
Vladislav Zolotarov | 27 | 1.18% | 1 | 2.86% |
Saurav Kashyap | 20 | 0.88% | 4 | 11.43% |
Robert Love | 11 | 0.48% | 1 | 2.86% |
Barak Witkowsky | 11 | 0.48% | 1 | 2.86% |
Joe Perches | 10 | 0.44% | 1 | 2.86% |
Eddie Wai | 4 | 0.18% | 1 | 2.86% |
Maurizio Lombardi | 4 | 0.18% | 1 | 2.86% |
Michael Chan | 3 | 0.13% | 2 | 5.71% |
Joe Carnuccio | 3 | 0.13% | 1 | 2.86% |
Chad Dupuis | 1 | 0.04% | 1 | 2.86% |
Jeff Kirsher | 1 | 0.04% | 1 | 2.86% |
Ingo Molnar | 1 | 0.04% | 1 | 2.86% |
Nithin Nayak Sujir | 1 | 0.04% | 1 | 2.86% |
Total | 2281 | 35 |
/* bnx2fc.h: QLogic Linux FCoE offload driver. * * 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 (bprakash@broadcom.com) */ #ifndef _BNX2FC_H_ #define _BNX2FC_H_ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> #include <linux/skbuff.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/if_ether.h> #include <linux/if_vlan.h> #include <linux/kthread.h> #include <linux/crc32.h> #include <linux/cpu.h> #include <linux/types.h> #include <linux/list.h> #include <linux/delay.h> #include <linux/timer.h> #include <linux/errno.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/dma-mapping.h> #include <linux/workqueue.h> #include <linux/mutex.h> #include <linux/spinlock.h> #include <linux/bitops.h> #include <linux/log2.h> #include <linux/interrupt.h> #include <linux/sched/signal.h> #include <linux/io.h> #include <scsi/scsi.h> #include <scsi/scsi_host.h> #include <scsi/scsi_device.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_eh.h> #include <scsi/scsi_tcq.h> #include <scsi/libfc.h> #include <scsi/libfcoe.h> #include <scsi/scsi_transport.h> #include <scsi/scsi_transport_fc.h> #include <scsi/fc/fc_fip.h> #include <scsi/fc/fc_fc2.h> #include <scsi/fc_frame.h> #include <scsi/fc/fc_fcoe.h> #include <scsi/fc/fc_fcp.h> #include "57xx_hsi_bnx2fc.h" #include "../../net/ethernet/broadcom/cnic_if.h" #include "../../net/ethernet/broadcom/bnx2x/bnx2x_mfw_req.h" #include "bnx2fc_constants.h" #define BNX2FC_NAME "bnx2fc" #define BNX2FC_VERSION "2.12.13" #define PFX "bnx2fc: " #define BCM_CHIP_LEN 16 #define BNX2X_DOORBELL_PCI_BAR 2 #define BNX2FC_MAX_BD_LEN 0xffff #define BNX2FC_BD_SPLIT_SZ 0xffff #define BNX2FC_MAX_BDS_PER_CMD 255 #define BNX2FC_FW_MAX_BDS_PER_CMD 255 #define BNX2FC_SQ_WQES_MAX 256 #define BNX2FC_SCSI_MAX_SQES ((3 * BNX2FC_SQ_WQES_MAX) / 8) #define BNX2FC_TM_MAX_SQES ((BNX2FC_SQ_WQES_MAX) / 2) #define BNX2FC_ELS_MAX_SQES (BNX2FC_TM_MAX_SQES - 1) #define BNX2FC_RQ_WQES_MAX 16 #define BNX2FC_CQ_WQES_MAX (BNX2FC_SQ_WQES_MAX + BNX2FC_RQ_WQES_MAX) #define BNX2FC_NUM_MAX_SESS 1024 #define BNX2FC_NUM_MAX_SESS_LOG (ilog2(BNX2FC_NUM_MAX_SESS)) #define BNX2FC_MAX_NPIV 256 #define BNX2FC_MIN_PAYLOAD 256 #define BNX2FC_MAX_PAYLOAD 2048 #define BNX2FC_MFS \ (BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header)) #define BNX2FC_MINI_JUMBO_MTU 2500 #define BNX2FC_RQ_BUF_SZ 256 #define BNX2FC_RQ_BUF_LOG_SZ (ilog2(BNX2FC_RQ_BUF_SZ)) #define BNX2FC_SQ_WQE_SIZE (sizeof(struct fcoe_sqe)) #define BNX2FC_CQ_WQE_SIZE (sizeof(struct fcoe_cqe)) #define BNX2FC_RQ_WQE_SIZE (BNX2FC_RQ_BUF_SZ) #define BNX2FC_XFERQ_WQE_SIZE (sizeof(struct fcoe_xfrqe)) #define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe)) #define BNX2X_DB_SHIFT 3 #define BNX2FC_TASK_SIZE 128 #define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE) #define BNX2FC_MAX_ROWS_IN_HASH_TBL 8 #define BNX2FC_HASH_TBL_CHUNK_SIZE (16 * 1024) #define BNX2FC_MAX_SEQS 255 #define BNX2FC_MAX_RETRY_CNT 3 #define BNX2FC_MAX_RPORT_RETRY_CNT 255 #define BNX2FC_READ (1 << 1) #define BNX2FC_WRITE (1 << 0) #define BNX2FC_MIN_XID 0 #define FCOE_MAX_NUM_XIDS 0x2000 #define FCOE_MAX_XID_OFFSET (FCOE_MAX_NUM_XIDS - 1) #define FCOE_XIDS_PER_CPU_OFFSET ((512 * nr_cpu_ids) - 1) #define BNX2FC_MAX_LUN 0xFFFF #define BNX2FC_MAX_FCP_TGT 256 #define BNX2FC_MAX_CMD_LEN 16 #define BNX2FC_TM_TIMEOUT 60 /* secs */ #define BNX2FC_IO_TIMEOUT 20000UL /* msecs */ #define BNX2FC_WAIT_CNT 1200 #define BNX2FC_FW_TIMEOUT (3 * HZ) #define PORT_MAX 2 #define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status) /* FC FCP Status */ #define FC_GOOD 0 #define BNX2FC_RNID_HBA 0x7 #define SRR_RETRY_COUNT 5 #define REC_RETRY_COUNT 1 #define BNX2FC_NUM_ERR_BITS 63 #define BNX2FC_RELOGIN_WAIT_TIME 200 #define BNX2FC_RELOGIN_WAIT_CNT 10 #define BNX2FC_STATS(hba, stat, cnt) \ do { \ u32 val; \ \ val = fw_stats->stat.cnt; \ if (hba->prev_stats.stat.cnt <= val) \ val -= hba->prev_stats.stat.cnt; \ else \ val += (0xfffffff - hba->prev_stats.stat.cnt); \ hba->bfw_stats.cnt += val; \ } while (0) /* bnx2fc driver uses only one instance of fcoe_percpu_s */ extern struct fcoe_percpu_s bnx2fc_global; extern struct workqueue_struct *bnx2fc_wq; struct bnx2fc_percpu_s { struct task_struct *iothread; struct list_head work_list; spinlock_t fp_work_lock; }; struct bnx2fc_fw_stats { u64 fc_crc_cnt; u64 fcoe_tx_pkt_cnt; u64 fcoe_rx_pkt_cnt; u64 fcoe_tx_byte_cnt; u64 fcoe_rx_byte_cnt; }; struct bnx2fc_hba { struct list_head list; struct cnic_dev *cnic; struct pci_dev *pcidev; struct net_device *phys_dev; unsigned long reg_with_cnic; #define BNX2FC_CNIC_REGISTERED 1 struct bnx2fc_cmd_mgr *cmd_mgr; spinlock_t hba_lock; struct mutex hba_mutex; struct mutex hba_stats_mutex; unsigned long adapter_state; #define ADAPTER_STATE_UP 0 #define ADAPTER_STATE_GOING_DOWN 1 #define ADAPTER_STATE_LINK_DOWN 2 #define ADAPTER_STATE_READY 3 unsigned long flags; #define BNX2FC_FLAG_FW_INIT_DONE 0 #define BNX2FC_FLAG_DESTROY_CMPL 1 u32 next_conn_id; /* xid resources */ u16 max_xid; u32 max_tasks; u32 max_outstanding_cmds; u32 elstm_xids; struct fcoe_task_ctx_entry **task_ctx; dma_addr_t *task_ctx_dma; struct regpair *task_ctx_bd_tbl; dma_addr_t task_ctx_bd_dma; int hash_tbl_segment_count; void **hash_tbl_segments; void *hash_tbl_pbl; dma_addr_t hash_tbl_pbl_dma; struct fcoe_t2_hash_table_entry *t2_hash_tbl; dma_addr_t t2_hash_tbl_dma; char *t2_hash_tbl_ptr; dma_addr_t t2_hash_tbl_ptr_dma; char *dummy_buffer; dma_addr_t dummy_buf_dma; /* Active list of offloaded sessions */ struct bnx2fc_rport **tgt_ofld_list; /* statistics */ struct bnx2fc_fw_stats bfw_stats; struct fcoe_statistics_params prev_stats; struct fcoe_statistics_params *stats_buffer; dma_addr_t stats_buf_dma; struct completion stat_req_done; struct fcoe_capabilities fcoe_cap; /*destroy handling */ struct timer_list destroy_timer; wait_queue_head_t destroy_wait; /* linkdown handling */ wait_queue_head_t shutdown_wait; int wait_for_link_down; int num_ofld_sess; struct list_head vports; char chip_num[BCM_CHIP_LEN]; }; struct bnx2fc_interface { struct list_head list; unsigned long if_flags; #define BNX2FC_CTLR_INIT_DONE 0 struct bnx2fc_hba *hba; struct net_device *netdev; struct packet_type fcoe_packet_type; struct packet_type fip_packet_type; struct workqueue_struct *timer_work_queue; struct kref kref; u8 vlan_enabled; int vlan_id; bool enabled; u8 tm_timeout; }; #define bnx2fc_from_ctlr(x) \ ((struct bnx2fc_interface *)((x) + 1)) #define bnx2fc_to_ctlr(x) \ ((struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1)) struct bnx2fc_lport { struct list_head list; struct fc_lport *lport; }; struct bnx2fc_cmd_mgr { struct bnx2fc_hba *hba; u16 next_idx; struct list_head *free_list; spinlock_t *free_list_lock; struct io_bdt **io_bdt_pool; struct bnx2fc_cmd **cmds; }; struct bnx2fc_rport { struct fcoe_port *port; struct fc_rport *rport; struct fc_rport_priv *rdata; void __iomem *ctx_base; #define DPM_TRIGER_TYPE 0x40 u32 io_timeout; u32 fcoe_conn_id; u32 context_id; u32 sid; int dev_type; unsigned long flags; #define BNX2FC_FLAG_SESSION_READY 0x1 #define BNX2FC_FLAG_OFFLOADED 0x2 #define BNX2FC_FLAG_DISABLED 0x3 #define BNX2FC_FLAG_DESTROYED 0x4 #define BNX2FC_FLAG_OFLD_REQ_CMPL 0x5 #define BNX2FC_FLAG_CTX_ALLOC_FAILURE 0x6 #define BNX2FC_FLAG_UPLD_REQ_COMPL 0x7 #define BNX2FC_FLAG_DISABLE_FAILED 0x9 #define BNX2FC_FLAG_ENABLED 0xa u8 src_addr[ETH_ALEN]; u32 max_sqes; u32 max_rqes; u32 max_cqes; atomic_t free_sqes; struct b577xx_doorbell_set_prod sq_db; struct b577xx_fcoe_rx_doorbell rx_db; struct fcoe_sqe *sq; dma_addr_t sq_dma; u16 sq_prod_idx; u8 sq_curr_toggle_bit; u32 sq_mem_size; struct fcoe_cqe *cq; dma_addr_t cq_dma; u16 cq_cons_idx; u8 cq_curr_toggle_bit; u32 cq_mem_size; void *rq; dma_addr_t rq_dma; u32 rq_prod_idx; u32 rq_cons_idx; u32 rq_mem_size; void *rq_pbl; dma_addr_t rq_pbl_dma; u32 rq_pbl_size; struct fcoe_xfrqe *xferq; dma_addr_t xferq_dma; u32 xferq_mem_size; struct fcoe_confqe *confq; dma_addr_t confq_dma; u32 confq_mem_size; void *confq_pbl; dma_addr_t confq_pbl_dma; u32 confq_pbl_size; struct fcoe_conn_db *conn_db; dma_addr_t conn_db_dma; u32 conn_db_mem_size; struct fcoe_sqe *lcq; dma_addr_t lcq_dma; u32 lcq_mem_size; void *ofld_req[4]; dma_addr_t ofld_req_dma[4]; void *enbl_req; dma_addr_t enbl_req_dma; spinlock_t tgt_lock; spinlock_t cq_lock; atomic_t num_active_ios; u32 flush_in_prog; unsigned long timestamp; unsigned long retry_delay_timestamp; struct list_head free_task_list; struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1]; struct list_head active_cmd_queue; struct list_head els_queue; struct list_head io_retire_queue; struct list_head active_tm_queue; struct timer_list ofld_timer; wait_queue_head_t ofld_wait; struct timer_list upld_timer; wait_queue_head_t upld_wait; }; struct bnx2fc_mp_req { u8 tm_flags; u32 req_len; void *req_buf; dma_addr_t req_buf_dma; struct fcoe_bd_ctx *mp_req_bd; dma_addr_t mp_req_bd_dma; struct fc_frame_header req_fc_hdr; u32 resp_len; void *resp_buf; dma_addr_t resp_buf_dma; struct fcoe_bd_ctx *mp_resp_bd; dma_addr_t mp_resp_bd_dma; struct fc_frame_header resp_fc_hdr; }; struct bnx2fc_els_cb_arg { struct bnx2fc_cmd *aborted_io_req; struct bnx2fc_cmd *io_req; u16 l2_oxid; u32 offset; enum fc_rctl r_ctl; }; /* bnx2fc command structure */ struct bnx2fc_cmd { struct list_head link; u8 on_active_queue; u8 on_tmf_queue; u8 cmd_type; #define BNX2FC_SCSI_CMD 1 #define BNX2FC_TASK_MGMT_CMD 2 #define BNX2FC_ABTS 3 #define BNX2FC_ELS 4 #define BNX2FC_CLEANUP 5 #define BNX2FC_SEQ_CLEANUP 6 u8 io_req_flags; struct kref refcount; struct fcoe_port *port; struct bnx2fc_rport *tgt; struct scsi_cmnd *sc_cmd; struct bnx2fc_cmd_mgr *cmd_mgr; struct bnx2fc_mp_req mp_req; void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg); struct bnx2fc_els_cb_arg *cb_arg; struct delayed_work timeout_work; /* timer for ULP timeouts */ struct completion abts_done; struct completion cleanup_done; int wait_for_abts_comp; int wait_for_cleanup_comp; u16 xid; struct fcoe_err_report_entry err_entry; struct fcoe_task_ctx_entry *task; struct io_bdt *bd_tbl; struct fcp_rsp *rsp; size_t data_xfer_len; unsigned long req_flags; #define BNX2FC_FLAG_ISSUE_RRQ 0x1 #define BNX2FC_FLAG_ISSUE_ABTS 0x2 #define BNX2FC_FLAG_ABTS_DONE 0x3 #define BNX2FC_FLAG_TM_COMPL 0x4 #define BNX2FC_FLAG_TM_TIMEOUT 0x5 #define BNX2FC_FLAG_IO_CLEANUP 0x6 #define BNX2FC_FLAG_RETIRE_OXID 0x7 #define BNX2FC_FLAG_EH_ABORT 0x8 #define BNX2FC_FLAG_IO_COMPL 0x9 #define BNX2FC_FLAG_ELS_DONE 0xa #define BNX2FC_FLAG_ELS_TIMEOUT 0xb #define BNX2FC_FLAG_CMD_LOST 0xc #define BNX2FC_FLAG_SRR_SENT 0xd #define BNX2FC_FLAG_ISSUE_CLEANUP_REQ 0xe u8 rec_retry; u8 srr_retry; u32 srr_offset; u8 srr_rctl; u32 fcp_resid; u32 fcp_rsp_len; u32 fcp_sns_len; u8 cdb_status; /* SCSI IO status */ u8 fcp_status; /* FCP IO status */ u8 fcp_rsp_code; u8 scsi_comp_flags; }; struct io_bdt { struct bnx2fc_cmd *io_req; struct fcoe_bd_ctx *bd_tbl; dma_addr_t bd_tbl_dma; u16 bd_valid; }; struct bnx2fc_work { struct list_head list; struct bnx2fc_rport *tgt; struct fcoe_task_ctx_entry *task; unsigned char rq_data[BNX2FC_RQ_BUF_SZ]; u16 wqe; u8 num_rq; }; struct bnx2fc_unsol_els { struct fc_lport *lport; struct fc_frame *fp; struct bnx2fc_hba *hba; struct work_struct unsol_els_work; }; struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt); struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type); void bnx2fc_cmd_release(struct kref *ref); int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd); int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba); int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba); int bnx2fc_send_session_ofld_req(struct fcoe_port *port, struct bnx2fc_rport *tgt); int bnx2fc_send_session_enable_req(struct fcoe_port *port, struct bnx2fc_rport *tgt); int bnx2fc_send_session_disable_req(struct fcoe_port *port, struct bnx2fc_rport *tgt); int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba, struct bnx2fc_rport *tgt); int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt); void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[], u32 num_cqe); int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba); void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba); int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba); void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba); struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba); void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr); void bnx2fc_get_link_state(struct bnx2fc_hba *hba); char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items); void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items); int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen); int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req); int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp); int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp); int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp); int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req); int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req); void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req, unsigned int timer_msec); int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req); void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req, struct fcoe_task_ctx_entry *task, u16 orig_xid); void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnup_req, struct fcoe_task_ctx_entry *task, struct bnx2fc_cmd *orig_io_req, u32 offset); 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); void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid); void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt); int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd); int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd); int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd); void bnx2fc_rport_event_handler(struct fc_lport *lport, struct fc_rport_priv *rport, enum fc_rport_event event); void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req, struct fcoe_task_ctx_entry *task, u8 num_rq, unsigned char *rq_data); void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req, struct fcoe_task_ctx_entry *task, u8 num_rq); void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req, struct fcoe_task_ctx_entry *task, u8 num_rq); void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req, struct fcoe_task_ctx_entry *task, u8 num_rq, unsigned char *rq_data); void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req, struct fcoe_task_ctx_entry *task, u8 num_rq); void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req, struct fcp_cmnd *fcp_cmnd); void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt); struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did, struct fc_frame *fp, unsigned int op, void (*resp)(struct fc_seq *, struct fc_frame *, void *), void *arg, u32 timeout); void bnx2fc_arm_cq(struct bnx2fc_rport *tgt); int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt); void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe, unsigned char *rq_data, u8 num_rq, struct fcoe_task_ctx_entry *task); struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port, u32 port_id); void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt, unsigned char *buf, u32 frame_len, u16 l2_oxid); int bnx2fc_send_stat_req(struct bnx2fc_hba *hba); int bnx2fc_post_io_req(struct bnx2fc_rport *tgt, struct bnx2fc_cmd *io_req); int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req); int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl); void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnup_req, struct fcoe_task_ctx_entry *task, u8 rx_state); int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset, enum fc_rctl r_ctl); #include "bnx2fc_debug.h" #endif
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