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fcp_impl.h
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/* fcp_impl.h: Generic SCSI on top of FC4 - our interface defines.
*
* Copyright (C) 1997-1999 Jakub Jelinek ([email protected])
* Copyright (C) 1998 Jirka Hanika ([email protected])
*/
#ifndef _FCP_SCSI_H
#define _FCP_SCSI_H
#include <linux/types.h>
#include "../scsi/scsi.h"
#include "fc.h"
#include "fcp.h"
#include "fc-al.h"
#include <asm/io.h>
#ifdef __sparc__
#include <asm/sbus.h>
#endif
/* 0 or 1 */
#define FCP_SCSI_USE_NEW_EH_CODE 0
#define FC_CLASS_OUTBOUND 0x01
#define FC_CLASS_INBOUND 0x02
#define FC_CLASS_SIMPLE 0x03
#define FC_CLASS_IO_WRITE 0x04
#define FC_CLASS_IO_READ 0x05
#define FC_CLASS_UNSOLICITED 0x06
#define FC_CLASS_OFFLINE 0x08
#define PROTO_OFFLINE 0x02
#define PROTO_REPORT_AL_MAP 0x03
#define PROTO_FORCE_LIP 0x06
struct _fc_channel;
typedef struct fcp_cmnd {
struct fcp_cmnd *next;
struct fcp_cmnd *prev;
void (*done)(struct scsi_cmnd *);
unsigned short proto;
unsigned short token;
unsigned int did;
/* FCP SCSI stuff */
dma_addr_t data;
/* From now on this cannot be touched for proto == TYPE_SCSI_FCP */
fc_hdr fch;
dma_addr_t cmd;
dma_addr_t rsp;
int cmdlen;
int rsplen;
int class;
int datalen;
/* This is just used as a verification during login */
struct _fc_channel *fc;
void *ls;
} fcp_cmnd;
typedef struct {
unsigned int len;
unsigned char list[0];
} fcp_posmap;
typedef struct _fc_channel {
struct _fc_channel *next;
int irq;
int state;
int sid;
int did;
char name[16];
void (*fcp_register)(struct _fc_channel *, u8, int);
void (*reset)(struct _fc_channel *);
int (*hw_enque)(struct _fc_channel *, fcp_cmnd *);
fc_wwn wwn_node;
fc_wwn wwn_nport;
fc_wwn wwn_dest;
common_svc_parm *common_svc;
svc_parm *class_svcs;
#ifdef __sparc__
struct sbus_dev *dev;
#else
struct pci_dev *dev;
#endif
struct module *module;
/* FCP SCSI stuff */
short can_queue;
short abort_count;
int rsp_size;
fcp_cmd *scsi_cmd_pool;
char *scsi_rsp_pool;
dma_addr_t dma_scsi_cmd, dma_scsi_rsp;
unsigned long *scsi_bitmap;
long scsi_bitmap_end;
int scsi_free;
int (*encode_addr)(struct scsi_cmnd *, u16 *, struct _fc_channel *, fcp_cmnd *);
fcp_cmnd *scsi_que;
char scsi_name[4];
fcp_cmnd **cmd_slots;
int channels;
int targets;
long *ages;
struct scsi_cmnd *rst_pkt;
fcp_posmap *posmap;
/* LOGIN stuff */
fcp_cmnd *login;
void *ls;
} fc_channel;
extern fc_channel *fc_channels;
#define FC_STATE_UNINITED 0
#define FC_STATE_ONLINE 1
#define FC_STATE_OFFLINE 2
#define FC_STATE_RESETING 3
#define FC_STATE_FPORT_OK 4
#define FC_STATE_MAYBEOFFLINE 5
#define FC_STATUS_OK 0
#define FC_STATUS_P_RJT 2
#define FC_STATUS_F_RJT 3
#define FC_STATUS_P_BSY 4
#define FC_STATUS_F_BSY 5
#define FC_STATUS_ERR_OFFLINE 0x11
#define FC_STATUS_TIMEOUT 0x12
#define FC_STATUS_ERR_OVERRUN 0x13
#define FC_STATUS_POINTTOPOINT 0x15
#define FC_STATUS_AL 0x16
#define FC_STATUS_UNKNOWN_CQ_TYPE 0x20
#define FC_STATUS_BAD_SEG_CNT 0x21
#define FC_STATUS_MAX_XCHG_EXCEEDED 0x22
#define FC_STATUS_BAD_XID 0x23
#define FC_STATUS_XCHG_BUSY 0x24
#define FC_STATUS_BAD_POOL_ID 0x25
#define FC_STATUS_INSUFFICIENT_CQES 0x26
#define FC_STATUS_ALLOC_FAIL 0x27
#define FC_STATUS_BAD_SID 0x28
#define FC_STATUS_NO_SEQ_INIT 0x29
#define FC_STATUS_TIMED_OUT -1
#define FC_STATUS_BAD_RSP -2
void fcp_queue_empty(fc_channel *);
int fcp_init(fc_channel *);
void fcp_release(fc_channel *fc_chain, int count);
void fcp_receive_solicited(fc_channel *, int, int, int, fc_hdr *);
void fcp_state_change(fc_channel *, int);
int fc_do_plogi(fc_channel *, unsigned char, fc_wwn *, fc_wwn *);
int fc_do_prli(fc_channel *, unsigned char);
#define for_each_fc_channel(fc) \
for (fc = fc_channels; fc; fc = fc->next)
#define for_each_online_fc_channel(fc) \
for_each_fc_channel(fc) \
if (fc->state == FC_STATE_ONLINE)
int fcp_scsi_queuecommand(struct scsi_cmnd *,
void (* done) (struct scsi_cmnd *));
int fcp_scsi_abort(struct scsi_cmnd *);
int fcp_scsi_dev_reset(struct scsi_cmnd *);
int fcp_scsi_host_reset(struct scsi_cmnd *);
#endif /* !(_FCP_SCSI_H) */