/*
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* Copyright 2014 Cisco Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __SNIC_DISC_H
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#define __SNIC_DISC_H
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#include "snic_fwint.h"
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enum snic_disc_state {
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SNIC_DISC_NONE,
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SNIC_DISC_INIT,
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SNIC_DISC_PENDING,
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SNIC_DISC_DONE
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};
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struct snic;
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struct snic_disc {
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struct list_head tgt_list;
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enum snic_disc_state state;
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struct mutex mutex;
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u16 disc_id;
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u8 req_cnt;
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u32 nxt_tgt_id;
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u32 rtgt_cnt;
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u8 *rtgt_info;
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struct delayed_work disc_timeout;
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void (*cb)(struct snic *);
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};
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#define SNIC_TGT_NAM_LEN 16
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enum snic_tgt_state {
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SNIC_TGT_STAT_NONE,
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SNIC_TGT_STAT_INIT,
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SNIC_TGT_STAT_ONLINE, /* Target is Online */
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SNIC_TGT_STAT_OFFLINE, /* Target is Offline */
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SNIC_TGT_STAT_DEL,
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};
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struct snic_tgt_priv {
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struct list_head list;
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enum snic_tgt_type typ;
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u16 disc_id;
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char *name[SNIC_TGT_NAM_LEN];
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union {
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/*DAS Target specific info */
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/*SAN Target specific info */
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u8 dummmy;
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} u;
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};
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/* snic tgt flags */
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#define SNIC_TGT_SCAN_PENDING 0x01
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struct snic_tgt {
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struct list_head list;
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u16 id;
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u16 channel;
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u32 flags;
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u32 scsi_tgt_id;
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enum snic_tgt_state state;
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struct device dev;
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struct work_struct scan_work;
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struct work_struct del_work;
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struct snic_tgt_priv tdata;
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};
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struct snic_fw_req;
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void snic_disc_init(struct snic_disc *);
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int snic_disc_start(struct snic *);
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void snic_disc_term(struct snic *);
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int snic_report_tgt_cmpl_handler(struct snic *, struct snic_fw_req *);
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int snic_tgtinfo_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq);
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void snic_process_report_tgts_rsp(struct work_struct *);
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void snic_handle_tgt_disc(struct work_struct *);
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void snic_handle_disc(struct work_struct *);
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void snic_tgt_dev_release(struct device *);
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void snic_tgt_del_all(struct snic *);
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#define dev_to_tgt(d) \
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container_of(d, struct snic_tgt, dev)
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static inline int
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is_snic_target(struct device *dev)
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{
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return dev->release == snic_tgt_dev_release;
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}
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#define starget_to_tgt(st) \
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(is_snic_target(((struct scsi_target *) st)->dev.parent) ? \
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dev_to_tgt(st->dev.parent) : NULL)
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#define snic_tgt_to_shost(t) \
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dev_to_shost(t->dev.parent)
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static inline int
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snic_tgt_chkready(struct snic_tgt *tgt)
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{
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if (tgt->state == SNIC_TGT_STAT_ONLINE)
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return 0;
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else
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return DID_NO_CONNECT << 16;
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}
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const char *snic_tgt_state_to_str(int);
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int snic_tgt_scsi_abort_io(struct snic_tgt *);
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#endif /* end of __SNIC_DISC_H */
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