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