| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* fcp_impl.h: Generic SCSI on top of FC4 - our interface defines. |
| 2 | * |
| 3 | * Copyright (C) 1997-1999 Jakub Jelinek (jj@ultra.linux.cz) |
| 4 | * Copyright (C) 1998 Jirka Hanika (geo@ff.cuni.cz) |
| 5 | */ |
| 6 | |
| 7 | #ifndef _FCP_SCSI_H |
| 8 | #define _FCP_SCSI_H |
| 9 | |
| 10 | #include <linux/types.h> |
| 11 | #include "../scsi/scsi.h" |
| 12 | |
| 13 | #include "fc.h" |
| 14 | #include "fcp.h" |
| 15 | #include "fc-al.h" |
| 16 | |
| 17 | #include <asm/io.h> |
| 18 | #ifdef __sparc__ |
| 19 | #include <asm/sbus.h> |
| 20 | #endif |
| 21 | |
| 22 | /* 0 or 1 */ |
| 23 | #define FCP_SCSI_USE_NEW_EH_CODE 0 |
| 24 | |
| 25 | #define FC_CLASS_OUTBOUND 0x01 |
| 26 | #define FC_CLASS_INBOUND 0x02 |
| 27 | #define FC_CLASS_SIMPLE 0x03 |
| 28 | #define FC_CLASS_IO_WRITE 0x04 |
| 29 | #define FC_CLASS_IO_READ 0x05 |
| 30 | #define FC_CLASS_UNSOLICITED 0x06 |
| 31 | #define FC_CLASS_OFFLINE 0x08 |
| 32 | |
| 33 | #define PROTO_OFFLINE 0x02 |
| 34 | #define PROTO_REPORT_AL_MAP 0x03 |
| 35 | #define PROTO_FORCE_LIP 0x06 |
| 36 | |
| 37 | struct _fc_channel; |
| 38 | |
| 39 | typedef struct fcp_cmnd { |
| 40 | struct fcp_cmnd *next; |
| 41 | struct fcp_cmnd *prev; |
| 42 | void (*done)(Scsi_Cmnd *); |
| 43 | unsigned short proto; |
| 44 | unsigned short token; |
| 45 | unsigned int did; |
| 46 | /* FCP SCSI stuff */ |
| 47 | dma_addr_t data; |
| 48 | /* From now on this cannot be touched for proto == TYPE_SCSI_FCP */ |
| 49 | fc_hdr fch; |
| 50 | dma_addr_t cmd; |
| 51 | dma_addr_t rsp; |
| 52 | int cmdlen; |
| 53 | int rsplen; |
| 54 | int class; |
| 55 | int datalen; |
| 56 | /* This is just used as a verification during login */ |
| 57 | struct _fc_channel *fc; |
| 58 | void *ls; |
| 59 | } fcp_cmnd; |
| 60 | |
| 61 | typedef struct { |
| 62 | unsigned int len; |
| 63 | unsigned char list[0]; |
| 64 | } fcp_posmap; |
| 65 | |
| 66 | typedef struct _fc_channel { |
| 67 | struct _fc_channel *next; |
| 68 | int irq; |
| 69 | int state; |
| 70 | int sid; |
| 71 | int did; |
| 72 | char name[16]; |
| 73 | void (*fcp_register)(struct _fc_channel *, u8, int); |
| 74 | void (*reset)(struct _fc_channel *); |
| 75 | int (*hw_enque)(struct _fc_channel *, fcp_cmnd *); |
| 76 | fc_wwn wwn_node; |
| 77 | fc_wwn wwn_nport; |
| 78 | fc_wwn wwn_dest; |
| 79 | common_svc_parm *common_svc; |
| 80 | svc_parm *class_svcs; |
| 81 | #ifdef __sparc__ |
| 82 | struct sbus_dev *dev; |
| 83 | #else |
| 84 | struct pci_dev *dev; |
| 85 | #endif |
| 86 | struct module *module; |
| 87 | /* FCP SCSI stuff */ |
| 88 | short can_queue; |
| 89 | short abort_count; |
| 90 | int rsp_size; |
| 91 | fcp_cmd *scsi_cmd_pool; |
| 92 | char *scsi_rsp_pool; |
| 93 | dma_addr_t dma_scsi_cmd, dma_scsi_rsp; |
| 94 | long *scsi_bitmap; |
| 95 | long scsi_bitmap_end; |
| 96 | int scsi_free; |
| 97 | int (*encode_addr)(Scsi_Cmnd *, u16 *, struct _fc_channel *, fcp_cmnd *); |
| 98 | fcp_cmnd *scsi_que; |
| 99 | char scsi_name[4]; |
| 100 | fcp_cmnd **cmd_slots; |
| 101 | int channels; |
| 102 | int targets; |
| 103 | long *ages; |
| 104 | Scsi_Cmnd *rst_pkt; |
| 105 | fcp_posmap *posmap; |
| 106 | /* LOGIN stuff */ |
| 107 | fcp_cmnd *login; |
| 108 | void *ls; |
| 109 | } fc_channel; |
| 110 | |
| 111 | extern fc_channel *fc_channels; |
| 112 | |
| 113 | #define FC_STATE_UNINITED 0 |
| 114 | #define FC_STATE_ONLINE 1 |
| 115 | #define FC_STATE_OFFLINE 2 |
| 116 | #define FC_STATE_RESETING 3 |
| 117 | #define FC_STATE_FPORT_OK 4 |
| 118 | #define FC_STATE_MAYBEOFFLINE 5 |
| 119 | |
| 120 | #define FC_STATUS_OK 0 |
| 121 | #define FC_STATUS_P_RJT 2 |
| 122 | #define FC_STATUS_F_RJT 3 |
| 123 | #define FC_STATUS_P_BSY 4 |
| 124 | #define FC_STATUS_F_BSY 5 |
| 125 | #define FC_STATUS_ERR_OFFLINE 0x11 |
| 126 | #define FC_STATUS_TIMEOUT 0x12 |
| 127 | #define FC_STATUS_ERR_OVERRUN 0x13 |
| 128 | #define FC_STATUS_POINTTOPOINT 0x15 |
| 129 | #define FC_STATUS_AL 0x16 |
| 130 | #define FC_STATUS_UNKNOWN_CQ_TYPE 0x20 |
| 131 | #define FC_STATUS_BAD_SEG_CNT 0x21 |
| 132 | #define FC_STATUS_MAX_XCHG_EXCEEDED 0x22 |
| 133 | #define FC_STATUS_BAD_XID 0x23 |
| 134 | #define FC_STATUS_XCHG_BUSY 0x24 |
| 135 | #define FC_STATUS_BAD_POOL_ID 0x25 |
| 136 | #define FC_STATUS_INSUFFICIENT_CQES 0x26 |
| 137 | #define FC_STATUS_ALLOC_FAIL 0x27 |
| 138 | #define FC_STATUS_BAD_SID 0x28 |
| 139 | #define FC_STATUS_NO_SEQ_INIT 0x29 |
| 140 | #define FC_STATUS_TIMED_OUT -1 |
| 141 | #define FC_STATUS_BAD_RSP -2 |
| 142 | |
| 143 | void fcp_queue_empty(fc_channel *); |
| 144 | int fcp_init(fc_channel *); |
| 145 | void fcp_release(fc_channel *fc_chain, int count); |
| 146 | void fcp_receive_solicited(fc_channel *, int, int, int, fc_hdr *); |
| 147 | void fcp_state_change(fc_channel *, int); |
| 148 | int fc_do_plogi(fc_channel *, unsigned char, fc_wwn *, fc_wwn *); |
| 149 | int fc_do_prli(fc_channel *, unsigned char); |
| 150 | |
| 151 | #define for_each_fc_channel(fc) \ |
| 152 | for (fc = fc_channels; fc; fc = fc->next) |
| 153 | |
| 154 | #define for_each_online_fc_channel(fc) \ |
| 155 | for_each_fc_channel(fc) \ |
| 156 | if (fc->state == FC_STATE_ONLINE) |
| 157 | |
| 158 | int fcp_scsi_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *)); |
| 159 | int fcp_scsi_abort(Scsi_Cmnd *); |
| 160 | int fcp_scsi_dev_reset(Scsi_Cmnd *); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | int fcp_scsi_host_reset(Scsi_Cmnd *); |
| 162 | |
| 163 | #endif /* !(_FCP_SCSI_H) */ |