diff options
Diffstat (limited to 'drivers/fc4/fcp_impl.h')
| -rw-r--r-- | drivers/fc4/fcp_impl.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/drivers/fc4/fcp_impl.h b/drivers/fc4/fcp_impl.h new file mode 100644 index 0000000..e44d652 --- /dev/null +++ b/drivers/fc4/fcp_impl.h @@ -0,0 +1,164 @@ +/* fcp_impl.h: Generic SCSI on top of FC4 - our interface defines. + * + * Copyright (C) 1997-1999 Jakub Jelinek (jj@ultra.linux.cz) + * Copyright (C) 1998 Jirka Hanika (geo@ff.cuni.cz) + */ + +#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)(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; + long *scsi_bitmap; + long scsi_bitmap_end; + int scsi_free; + int (*encode_addr)(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; + 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(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *)); +int fcp_scsi_abort(Scsi_Cmnd *); +int fcp_scsi_dev_reset(Scsi_Cmnd *); +int fcp_scsi_bus_reset(Scsi_Cmnd *); +int fcp_scsi_host_reset(Scsi_Cmnd *); + +#endif /* !(_FCP_SCSI_H) */ |
