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