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1/* SPDX-License-Identifier: GPL-2.0-only */2/* Copyright 2014 Cisco Systems, Inc. All rights reserved. */3 4#ifndef __SNIC_DISC_H5#define __SNIC_DISC_H6 7#include "snic_fwint.h"8 9enum snic_disc_state {10 SNIC_DISC_NONE,11 SNIC_DISC_INIT,12 SNIC_DISC_PENDING,13 SNIC_DISC_DONE14};15 16struct snic;17struct snic_disc {18 struct list_head tgt_list;19 enum snic_disc_state state;20 struct mutex mutex;21 u16 disc_id;22 u8 req_cnt;23 u32 nxt_tgt_id;24 u32 rtgt_cnt;25 u8 *rtgt_info;26 struct delayed_work disc_timeout;27 void (*cb)(struct snic *);28};29 30#define SNIC_TGT_NAM_LEN 1631 32enum snic_tgt_state {33 SNIC_TGT_STAT_NONE,34 SNIC_TGT_STAT_INIT,35 SNIC_TGT_STAT_ONLINE, /* Target is Online */36 SNIC_TGT_STAT_OFFLINE, /* Target is Offline */37 SNIC_TGT_STAT_DEL,38};39 40struct snic_tgt_priv {41 struct list_head list;42 enum snic_tgt_type typ;43 u16 disc_id;44 char *name[SNIC_TGT_NAM_LEN];45 46 union {47 /*DAS Target specific info */48 /*SAN Target specific info */49 u8 dummmy;50 } u;51};52 53/* snic tgt flags */54#define SNIC_TGT_SCAN_PENDING 0x0155 56struct snic_tgt {57 struct list_head list;58 u16 id;59 u16 channel;60 u32 flags;61 u32 scsi_tgt_id;62 enum snic_tgt_state state;63 struct device dev;64 struct work_struct scan_work;65 struct work_struct del_work;66 struct snic_tgt_priv tdata;67};68 69 70struct snic_fw_req;71 72void snic_disc_init(struct snic_disc *);73int snic_disc_start(struct snic *);74void snic_disc_term(struct snic *);75int snic_report_tgt_cmpl_handler(struct snic *, struct snic_fw_req *);76int snic_tgtinfo_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq);77void snic_process_report_tgts_rsp(struct work_struct *);78void snic_handle_tgt_disc(struct work_struct *);79void snic_handle_disc(struct work_struct *);80void snic_tgt_dev_release(struct device *);81void snic_tgt_del_all(struct snic *);82 83#define dev_to_tgt(d) \84 container_of(d, struct snic_tgt, dev)85 86static inline int87is_snic_target(struct device *dev)88{89 return dev->release == snic_tgt_dev_release;90}91 92#define starget_to_tgt(st) \93 (is_snic_target(((struct scsi_target *) st)->dev.parent) ? \94 dev_to_tgt(st->dev.parent) : NULL)95 96#define snic_tgt_to_shost(t) \97 dev_to_shost(t->dev.parent)98 99static inline int100snic_tgt_chkready(struct snic_tgt *tgt)101{102 if (tgt->state == SNIC_TGT_STAT_ONLINE)103 return 0;104 else105 return DID_NO_CONNECT << 16;106}107 108const char *snic_tgt_state_to_str(int);109int snic_tgt_scsi_abort_io(struct snic_tgt *);110#endif /* end of __SNIC_DISC_H */111