Swen Schillig | 41fa2ad | 2007-09-07 09:15:31 +0200 | [diff] [blame] | 1 | /* |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 2 | * zfcp device driver |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 4 | * Interface to Linux SCSI midlayer. |
Swen Schillig | 41fa2ad | 2007-09-07 09:15:31 +0200 | [diff] [blame] | 5 | * |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 6 | * Copyright IBM Corporation 2002, 2008 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
Christof Schmitt | ecf39d4 | 2008-12-25 13:39:53 +0100 | [diff] [blame^] | 9 | #define KMSG_COMPONENT "zfcp" |
| 10 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt |
| 11 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include "zfcp_ext.h" |
Christof Schmitt | 5f852be | 2007-05-08 11:16:52 +0200 | [diff] [blame] | 13 | #include <asm/atomic.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | /* Find start of Sense Information in FCP response unit*/ |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 16 | char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | { |
| 18 | char *fcp_sns_info_ptr; |
| 19 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 20 | fcp_sns_info_ptr = (unsigned char *) &fcp_rsp_iu[1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | if (fcp_rsp_iu->validity.bits.fcp_rsp_len_valid) |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 22 | fcp_sns_info_ptr += fcp_rsp_iu->fcp_rsp_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | |
| 24 | return fcp_sns_info_ptr; |
| 25 | } |
| 26 | |
Andreas Herrmann | f6c0e7a | 2006-08-02 11:05:52 +0200 | [diff] [blame] | 27 | static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | { |
| 29 | struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata; |
Christof Schmitt | 26816f1 | 2008-11-04 16:35:05 +0100 | [diff] [blame] | 30 | atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status); |
| 31 | unit->device = NULL; |
| 32 | zfcp_erp_unit_failed(unit, 12, NULL); |
| 33 | zfcp_unit_put(unit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | } |
| 35 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 36 | static int zfcp_scsi_slave_configure(struct scsi_device *sdp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | { |
| 38 | if (sdp->tagged_supported) |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 39 | scsi_adjust_queue_depth(sdp, MSG_SIMPLE_TAG, 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | else |
| 41 | scsi_adjust_queue_depth(sdp, 0, 1); |
| 42 | return 0; |
| 43 | } |
| 44 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 45 | static void zfcp_scsi_command_fail(struct scsi_cmnd *scpnt, int result) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | { |
Martin Petermann | feac6a0 | 2008-07-02 10:56:35 +0200 | [diff] [blame] | 47 | set_host_byte(scpnt, result); |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 48 | if ((scpnt->device != NULL) && (scpnt->device->host != NULL)) |
| 49 | zfcp_scsi_dbf_event_result("fail", 4, |
| 50 | (struct zfcp_adapter*) scpnt->device->host->hostdata[0], |
Maxim Shchetynin | ed829ad | 2006-02-11 01:42:58 +0100 | [diff] [blame] | 51 | scpnt, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | /* return directly */ |
| 53 | scpnt->scsi_done(scpnt); |
| 54 | } |
| 55 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 56 | static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt, |
| 57 | void (*done) (struct scsi_cmnd *)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | { |
| 59 | struct zfcp_unit *unit; |
| 60 | struct zfcp_adapter *adapter; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 61 | int status; |
| 62 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
| 64 | /* reset the status for this request */ |
| 65 | scpnt->result = 0; |
| 66 | scpnt->host_scribble = NULL; |
| 67 | scpnt->scsi_done = done; |
| 68 | |
| 69 | /* |
| 70 | * figure out adapter and target device |
| 71 | * (stored there by zfcp_scsi_slave_alloc) |
| 72 | */ |
| 73 | adapter = (struct zfcp_adapter *) scpnt->device->host->hostdata[0]; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 74 | unit = scpnt->device->hostdata; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 76 | BUG_ON(!adapter || (adapter != unit->port->adapter)); |
| 77 | BUG_ON(!scpnt->scsi_done); |
| 78 | |
| 79 | if (unlikely(!unit)) { |
| 80 | zfcp_scsi_command_fail(scpnt, DID_NO_CONNECT); |
| 81 | return 0; |
| 82 | } |
| 83 | |
| 84 | status = atomic_read(&unit->status); |
| 85 | if (unlikely((status & ZFCP_STATUS_COMMON_ERP_FAILED) || |
| 86 | !(status & ZFCP_STATUS_COMMON_RUNNING))) { |
| 87 | zfcp_scsi_command_fail(scpnt, DID_ERROR); |
| 88 | return 0;; |
| 89 | } |
| 90 | |
| 91 | ret = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, 0, |
| 92 | ZFCP_REQ_AUTO_CLEANUP); |
| 93 | if (unlikely(ret == -EBUSY)) |
Swen Schillig | f7a65e9 | 2008-11-27 11:44:07 +0100 | [diff] [blame] | 94 | return SCSI_MLQUEUE_DEVICE_BUSY; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 95 | else if (unlikely(ret < 0)) |
| 96 | return SCSI_MLQUEUE_HOST_BUSY; |
| 97 | |
| 98 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | } |
| 100 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 101 | static struct zfcp_unit *zfcp_unit_lookup(struct zfcp_adapter *adapter, |
| 102 | int channel, unsigned int id, |
| 103 | unsigned int lun) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | { |
| 105 | struct zfcp_port *port; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 106 | struct zfcp_unit *unit; |
Christof Schmitt | 0406289 | 2008-10-01 12:42:20 +0200 | [diff] [blame] | 107 | int scsi_lun; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | |
| 109 | list_for_each_entry(port, &adapter->port_list_head, list) { |
Andreas Herrmann | 3859f6a | 2005-08-27 11:07:54 -0700 | [diff] [blame] | 110 | if (!port->rport || (id != port->rport->scsi_target_id)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | continue; |
Christof Schmitt | 0406289 | 2008-10-01 12:42:20 +0200 | [diff] [blame] | 112 | list_for_each_entry(unit, &port->unit_list_head, list) { |
| 113 | scsi_lun = scsilun_to_int( |
| 114 | (struct scsi_lun *)&unit->fcp_lun); |
| 115 | if (lun == scsi_lun) |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 116 | return unit; |
Christof Schmitt | 0406289 | 2008-10-01 12:42:20 +0200 | [diff] [blame] | 117 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | } |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 119 | |
| 120 | return NULL; |
| 121 | } |
| 122 | |
| 123 | static int zfcp_scsi_slave_alloc(struct scsi_device *sdp) |
| 124 | { |
| 125 | struct zfcp_adapter *adapter; |
| 126 | struct zfcp_unit *unit; |
| 127 | unsigned long flags; |
| 128 | int retval = -ENXIO; |
| 129 | |
| 130 | adapter = (struct zfcp_adapter *) sdp->host->hostdata[0]; |
| 131 | if (!adapter) |
| 132 | goto out; |
| 133 | |
| 134 | read_lock_irqsave(&zfcp_data.config_lock, flags); |
| 135 | unit = zfcp_unit_lookup(adapter, sdp->channel, sdp->id, sdp->lun); |
| 136 | if (unit && |
| 137 | (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_REGISTERED)) { |
| 138 | sdp->hostdata = unit; |
| 139 | unit->device = sdp; |
| 140 | zfcp_unit_get(unit); |
| 141 | retval = 0; |
| 142 | } |
| 143 | read_unlock_irqrestore(&zfcp_data.config_lock, flags); |
| 144 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | return retval; |
| 146 | } |
| 147 | |
Heiko Carstens | 2b67fc4 | 2007-02-05 21:16:47 +0100 | [diff] [blame] | 148 | static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | { |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 150 | struct Scsi_Host *scsi_host; |
| 151 | struct zfcp_adapter *adapter; |
| 152 | struct zfcp_unit *unit; |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 153 | struct zfcp_fsf_req *fsf_req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | unsigned long flags; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 155 | unsigned long old_req_id = (unsigned long) scpnt->host_scribble; |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 156 | int retval = SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 158 | scsi_host = scpnt->device->host; |
| 159 | adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 160 | unit = scpnt->device->hostdata; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 162 | /* avoid race condition between late normal completion and abort */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | write_lock_irqsave(&adapter->abort_lock, flags); |
| 164 | |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 165 | /* Check whether corresponding fsf_req is still pending */ |
| 166 | spin_lock(&adapter->req_list_lock); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 167 | fsf_req = zfcp_reqlist_find(adapter, old_req_id); |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 168 | spin_unlock(&adapter->req_list_lock); |
| 169 | if (!fsf_req) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | write_unlock_irqrestore(&adapter->abort_lock, flags); |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 171 | zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL, 0); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 172 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 174 | fsf_req->data = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 176 | /* don't access old fsf_req after releasing the abort_lock */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | write_unlock_irqrestore(&adapter->abort_lock, flags); |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 178 | |
| 179 | fsf_req = zfcp_fsf_abort_fcp_command(old_req_id, adapter, unit, 0); |
| 180 | if (!fsf_req) { |
Maxim Shchetynin | ed829ad | 2006-02-11 01:42:58 +0100 | [diff] [blame] | 181 | zfcp_scsi_dbf_event_abort("nres", adapter, scpnt, NULL, |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 182 | old_req_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | retval = FAILED; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 184 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | } |
| 186 | |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 187 | __wait_event(fsf_req->completion_wq, |
| 188 | fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED); |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 189 | |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 190 | if (fsf_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED) { |
| 191 | zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, fsf_req, 0); |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 192 | } else if (fsf_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED) { |
| 193 | zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, fsf_req, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | } else { |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 195 | zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, fsf_req, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | retval = FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | } |
Andreas Herrmann | 4eff4a3 | 2006-09-18 22:29:20 +0200 | [diff] [blame] | 198 | zfcp_fsf_req_free(fsf_req); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | return retval; |
| 201 | } |
| 202 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 203 | static int zfcp_task_mgmt_function(struct zfcp_unit *unit, u8 tm_flags, |
| 204 | struct scsi_cmnd *scpnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | { |
| 206 | struct zfcp_adapter *adapter = unit->port->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | struct zfcp_fsf_req *fsf_req; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 208 | int retval = SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
| 210 | /* issue task management function */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 211 | fsf_req = zfcp_fsf_send_fcp_ctm(adapter, unit, tm_flags, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | if (!fsf_req) { |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 213 | zfcp_scsi_dbf_event_devreset("nres", tm_flags, unit, scpnt); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 214 | return FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | } |
| 216 | |
Andreas Herrmann | 77eb169 | 2005-09-13 21:48:33 +0200 | [diff] [blame] | 217 | __wait_event(fsf_req->completion_wq, |
| 218 | fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED); |
| 219 | |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 220 | /* |
| 221 | * check completion status of task management function |
| 222 | */ |
| 223 | if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) { |
| 224 | zfcp_scsi_dbf_event_devreset("fail", tm_flags, unit, scpnt); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 225 | retval = FAILED; |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 226 | } else if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP) { |
| 227 | zfcp_scsi_dbf_event_devreset("nsup", tm_flags, unit, scpnt); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 228 | retval = FAILED; |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 229 | } else |
| 230 | zfcp_scsi_dbf_event_devreset("okay", tm_flags, unit, scpnt); |
Andreas Herrmann | 77eb169 | 2005-09-13 21:48:33 +0200 | [diff] [blame] | 231 | |
| 232 | zfcp_fsf_req_free(fsf_req); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | return retval; |
| 235 | } |
| 236 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 237 | static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt) |
| 238 | { |
| 239 | struct zfcp_unit *unit = scpnt->device->hostdata; |
| 240 | |
| 241 | if (!unit) { |
| 242 | WARN_ON(1); |
| 243 | return SUCCESS; |
| 244 | } |
| 245 | return zfcp_task_mgmt_function(unit, FCP_LOGICAL_UNIT_RESET, scpnt); |
| 246 | } |
| 247 | |
| 248 | static int zfcp_scsi_eh_target_reset_handler(struct scsi_cmnd *scpnt) |
| 249 | { |
| 250 | struct zfcp_unit *unit = scpnt->device->hostdata; |
| 251 | |
| 252 | if (!unit) { |
| 253 | WARN_ON(1); |
| 254 | return SUCCESS; |
| 255 | } |
| 256 | return zfcp_task_mgmt_function(unit, FCP_TARGET_RESET, scpnt); |
| 257 | } |
| 258 | |
Heiko Carstens | 2b67fc4 | 2007-02-05 21:16:47 +0100 | [diff] [blame] | 259 | static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | { |
Andreas Herrmann | f6c0e7a | 2006-08-02 11:05:52 +0200 | [diff] [blame] | 261 | struct zfcp_unit *unit; |
| 262 | struct zfcp_adapter *adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 264 | unit = scpnt->device->hostdata; |
Andreas Herrmann | f6c0e7a | 2006-08-02 11:05:52 +0200 | [diff] [blame] | 265 | adapter = unit->port->adapter; |
Martin Peschke | 1f6f712 | 2008-04-18 12:51:55 +0200 | [diff] [blame] | 266 | zfcp_erp_adapter_reopen(adapter, 0, 141, scpnt); |
Andreas Herrmann | 8165428 | 2006-09-18 22:30:36 +0200 | [diff] [blame] | 267 | zfcp_erp_wait(adapter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | |
Andreas Herrmann | 810f1e3e | 2005-09-13 21:49:52 +0200 | [diff] [blame] | 269 | return SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 272 | int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | { |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 274 | struct ccw_dev_id dev_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
Michael Loehr | 9f28745 | 2007-05-09 11:01:24 +0200 | [diff] [blame] | 276 | if (adapter->scsi_host) |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 277 | return 0; |
Michael Loehr | 9f28745 | 2007-05-09 11:01:24 +0200 | [diff] [blame] | 278 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 279 | ccw_device_get_id(adapter->ccw_device, &dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | /* register adapter as SCSI host with mid layer of SCSI stack */ |
| 281 | adapter->scsi_host = scsi_host_alloc(&zfcp_data.scsi_host_template, |
| 282 | sizeof (struct zfcp_adapter *)); |
| 283 | if (!adapter->scsi_host) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 284 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 285 | "Registering the FCP device with the " |
| 286 | "SCSI stack failed\n"); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 287 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
| 290 | /* tell the SCSI stack some characteristics of this adapter */ |
| 291 | adapter->scsi_host->max_id = 1; |
| 292 | adapter->scsi_host->max_lun = 1; |
| 293 | adapter->scsi_host->max_channel = 0; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 294 | adapter->scsi_host->unique_id = dev_id.devno; |
| 295 | adapter->scsi_host->max_cmd_len = 255; |
Heiko Carstens | dd52e0e | 2006-09-18 22:28:49 +0200 | [diff] [blame] | 296 | adapter->scsi_host->transportt = zfcp_data.scsi_transport_template; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | adapter->scsi_host->hostdata[0] = (unsigned long) adapter; |
| 299 | |
| 300 | if (scsi_add_host(adapter->scsi_host, &adapter->ccw_device->dev)) { |
| 301 | scsi_host_put(adapter->scsi_host); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 302 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | } |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 304 | |
| 305 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | } |
| 307 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 308 | void zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | { |
| 310 | struct Scsi_Host *shost; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 311 | struct zfcp_port *port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | |
| 313 | shost = adapter->scsi_host; |
| 314 | if (!shost) |
| 315 | return; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 316 | |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 317 | read_lock_irq(&zfcp_data.config_lock); |
| 318 | list_for_each_entry(port, &adapter->port_list_head, list) |
| 319 | if (port->rport) |
| 320 | port->rport = NULL; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 321 | |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 322 | read_unlock_irq(&zfcp_data.config_lock); |
Andreas Herrmann | 3859f6a | 2005-08-27 11:07:54 -0700 | [diff] [blame] | 323 | fc_remove_host(shost); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | scsi_remove_host(shost); |
| 325 | scsi_host_put(shost); |
| 326 | adapter->scsi_host = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | |
| 328 | return; |
| 329 | } |
| 330 | |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 331 | static struct fc_host_statistics* |
| 332 | zfcp_init_fc_host_stats(struct zfcp_adapter *adapter) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | { |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 334 | struct fc_host_statistics *fc_stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 336 | if (!adapter->fc_stats) { |
| 337 | fc_stats = kmalloc(sizeof(*fc_stats), GFP_KERNEL); |
| 338 | if (!fc_stats) |
| 339 | return NULL; |
| 340 | adapter->fc_stats = fc_stats; /* freed in adater_dequeue */ |
| 341 | } |
| 342 | memset(adapter->fc_stats, 0, sizeof(*adapter->fc_stats)); |
| 343 | return adapter->fc_stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | } |
| 345 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 346 | static void zfcp_adjust_fc_host_stats(struct fc_host_statistics *fc_stats, |
| 347 | struct fsf_qtcb_bottom_port *data, |
| 348 | struct fsf_qtcb_bottom_port *old) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | { |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 350 | fc_stats->seconds_since_last_reset = |
| 351 | data->seconds_since_last_reset - old->seconds_since_last_reset; |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 352 | fc_stats->tx_frames = data->tx_frames - old->tx_frames; |
| 353 | fc_stats->tx_words = data->tx_words - old->tx_words; |
| 354 | fc_stats->rx_frames = data->rx_frames - old->rx_frames; |
| 355 | fc_stats->rx_words = data->rx_words - old->rx_words; |
| 356 | fc_stats->lip_count = data->lip - old->lip; |
| 357 | fc_stats->nos_count = data->nos - old->nos; |
| 358 | fc_stats->error_frames = data->error_frames - old->error_frames; |
| 359 | fc_stats->dumped_frames = data->dumped_frames - old->dumped_frames; |
| 360 | fc_stats->link_failure_count = data->link_failure - old->link_failure; |
| 361 | fc_stats->loss_of_sync_count = data->loss_of_sync - old->loss_of_sync; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 362 | fc_stats->loss_of_signal_count = |
| 363 | data->loss_of_signal - old->loss_of_signal; |
| 364 | fc_stats->prim_seq_protocol_err_count = |
| 365 | data->psp_error_counts - old->psp_error_counts; |
| 366 | fc_stats->invalid_tx_word_count = |
| 367 | data->invalid_tx_words - old->invalid_tx_words; |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 368 | fc_stats->invalid_crc_count = data->invalid_crcs - old->invalid_crcs; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 369 | fc_stats->fcp_input_requests = |
| 370 | data->input_requests - old->input_requests; |
| 371 | fc_stats->fcp_output_requests = |
| 372 | data->output_requests - old->output_requests; |
| 373 | fc_stats->fcp_control_requests = |
| 374 | data->control_requests - old->control_requests; |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 375 | fc_stats->fcp_input_megabytes = data->input_mb - old->input_mb; |
| 376 | fc_stats->fcp_output_megabytes = data->output_mb - old->output_mb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | } |
| 378 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 379 | static void zfcp_set_fc_host_stats(struct fc_host_statistics *fc_stats, |
| 380 | struct fsf_qtcb_bottom_port *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | { |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 382 | fc_stats->seconds_since_last_reset = data->seconds_since_last_reset; |
| 383 | fc_stats->tx_frames = data->tx_frames; |
| 384 | fc_stats->tx_words = data->tx_words; |
| 385 | fc_stats->rx_frames = data->rx_frames; |
| 386 | fc_stats->rx_words = data->rx_words; |
| 387 | fc_stats->lip_count = data->lip; |
| 388 | fc_stats->nos_count = data->nos; |
| 389 | fc_stats->error_frames = data->error_frames; |
| 390 | fc_stats->dumped_frames = data->dumped_frames; |
| 391 | fc_stats->link_failure_count = data->link_failure; |
| 392 | fc_stats->loss_of_sync_count = data->loss_of_sync; |
| 393 | fc_stats->loss_of_signal_count = data->loss_of_signal; |
| 394 | fc_stats->prim_seq_protocol_err_count = data->psp_error_counts; |
| 395 | fc_stats->invalid_tx_word_count = data->invalid_tx_words; |
| 396 | fc_stats->invalid_crc_count = data->invalid_crcs; |
| 397 | fc_stats->fcp_input_requests = data->input_requests; |
| 398 | fc_stats->fcp_output_requests = data->output_requests; |
| 399 | fc_stats->fcp_control_requests = data->control_requests; |
| 400 | fc_stats->fcp_input_megabytes = data->input_mb; |
| 401 | fc_stats->fcp_output_megabytes = data->output_mb; |
| 402 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 404 | static struct fc_host_statistics *zfcp_get_fc_host_stats(struct Scsi_Host *host) |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 405 | { |
| 406 | struct zfcp_adapter *adapter; |
| 407 | struct fc_host_statistics *fc_stats; |
| 408 | struct fsf_qtcb_bottom_port *data; |
| 409 | int ret; |
| 410 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 411 | adapter = (struct zfcp_adapter *)host->hostdata[0]; |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 412 | fc_stats = zfcp_init_fc_host_stats(adapter); |
| 413 | if (!fc_stats) |
| 414 | return NULL; |
| 415 | |
Andreas Herrmann | ec4081c | 2006-05-22 18:17:30 +0200 | [diff] [blame] | 416 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 417 | if (!data) |
| 418 | return NULL; |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 419 | |
Swen Schillig | 52ef11a | 2007-08-28 09:31:09 +0200 | [diff] [blame] | 420 | ret = zfcp_fsf_exchange_port_data_sync(adapter, data); |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 421 | if (ret) { |
| 422 | kfree(data); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 423 | return NULL; |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 424 | } |
| 425 | |
| 426 | if (adapter->stats_reset && |
| 427 | ((jiffies/HZ - adapter->stats_reset) < |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 428 | data->seconds_since_last_reset)) |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 429 | zfcp_adjust_fc_host_stats(fc_stats, data, |
| 430 | adapter->stats_reset_data); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 431 | else |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 432 | zfcp_set_fc_host_stats(fc_stats, data); |
| 433 | |
| 434 | kfree(data); |
| 435 | return fc_stats; |
| 436 | } |
| 437 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 438 | static void zfcp_reset_fc_host_stats(struct Scsi_Host *shost) |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 439 | { |
| 440 | struct zfcp_adapter *adapter; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 441 | struct fsf_qtcb_bottom_port *data; |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 442 | int ret; |
| 443 | |
| 444 | adapter = (struct zfcp_adapter *)shost->hostdata[0]; |
Andreas Herrmann | ec4081c | 2006-05-22 18:17:30 +0200 | [diff] [blame] | 445 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 446 | if (!data) |
| 447 | return; |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 448 | |
Swen Schillig | 52ef11a | 2007-08-28 09:31:09 +0200 | [diff] [blame] | 449 | ret = zfcp_fsf_exchange_port_data_sync(adapter, data); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 450 | if (ret) |
Heiko Carstens | 83f6d6d | 2007-08-08 10:47:02 +0200 | [diff] [blame] | 451 | kfree(data); |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 452 | else { |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 453 | adapter->stats_reset = jiffies/HZ; |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 454 | kfree(adapter->stats_reset_data); |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 455 | adapter->stats_reset_data = data; /* finally freed in |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 456 | adapter_dequeue */ |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 457 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | } |
| 459 | |
Sven Schuetz | 85a8239 | 2008-06-10 18:20:59 +0200 | [diff] [blame] | 460 | static void zfcp_get_host_port_state(struct Scsi_Host *shost) |
| 461 | { |
| 462 | struct zfcp_adapter *adapter = |
| 463 | (struct zfcp_adapter *)shost->hostdata[0]; |
| 464 | int status = atomic_read(&adapter->status); |
| 465 | |
| 466 | if ((status & ZFCP_STATUS_COMMON_RUNNING) && |
| 467 | !(status & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED)) |
| 468 | fc_host_port_state(shost) = FC_PORTSTATE_ONLINE; |
| 469 | else if (status & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) |
| 470 | fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; |
| 471 | else if (status & ZFCP_STATUS_COMMON_ERP_FAILED) |
| 472 | fc_host_port_state(shost) = FC_PORTSTATE_ERROR; |
| 473 | else |
| 474 | fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; |
| 475 | } |
| 476 | |
Andreas Herrmann | 338151e | 2006-05-22 18:25:56 +0200 | [diff] [blame] | 477 | static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) |
| 478 | { |
| 479 | rport->dev_loss_tmo = timeout; |
| 480 | } |
| 481 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | struct fc_function_template zfcp_transport_functions = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | .show_starget_port_id = 1, |
| 484 | .show_starget_port_name = 1, |
| 485 | .show_starget_node_name = 1, |
Andreas Herrmann | 3859f6a | 2005-08-27 11:07:54 -0700 | [diff] [blame] | 486 | .show_rport_supported_classes = 1, |
Ralph Wuerthner | 75bfc28 | 2006-05-22 18:24:33 +0200 | [diff] [blame] | 487 | .show_rport_maxframe_size = 1, |
Andreas Herrmann | 338151e | 2006-05-22 18:25:56 +0200 | [diff] [blame] | 488 | .show_rport_dev_loss_tmo = 1, |
Andreas Herrmann | 3859f6a | 2005-08-27 11:07:54 -0700 | [diff] [blame] | 489 | .show_host_node_name = 1, |
| 490 | .show_host_port_name = 1, |
Andreas Herrmann | ad757cd | 2006-01-13 02:26:11 +0100 | [diff] [blame] | 491 | .show_host_permanent_port_name = 1, |
Andreas Herrmann | 3859f6a | 2005-08-27 11:07:54 -0700 | [diff] [blame] | 492 | .show_host_supported_classes = 1, |
Andreas Herrmann | ad757cd | 2006-01-13 02:26:11 +0100 | [diff] [blame] | 493 | .show_host_supported_speeds = 1, |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 494 | .show_host_maxframe_size = 1, |
Andreas Herrmann | 3859f6a | 2005-08-27 11:07:54 -0700 | [diff] [blame] | 495 | .show_host_serial_number = 1, |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 496 | .get_fc_host_stats = zfcp_get_fc_host_stats, |
| 497 | .reset_fc_host_stats = zfcp_reset_fc_host_stats, |
Andreas Herrmann | 338151e | 2006-05-22 18:25:56 +0200 | [diff] [blame] | 498 | .set_rport_dev_loss_tmo = zfcp_set_rport_dev_loss_tmo, |
Sven Schuetz | 85a8239 | 2008-06-10 18:20:59 +0200 | [diff] [blame] | 499 | .get_host_port_state = zfcp_get_host_port_state, |
| 500 | .show_host_port_state = 1, |
Andreas Herrmann | f6cd94b | 2006-01-05 09:59:34 +0100 | [diff] [blame] | 501 | /* no functions registered for following dynamic attributes but |
| 502 | directly set by LLDD */ |
Andreas Herrmann | ad757cd | 2006-01-13 02:26:11 +0100 | [diff] [blame] | 503 | .show_host_port_type = 1, |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 504 | .show_host_speed = 1, |
| 505 | .show_host_port_id = 1, |
Swen Schillig | 52ef11a | 2007-08-28 09:31:09 +0200 | [diff] [blame] | 506 | .disable_target_scan = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | }; |
| 508 | |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 509 | struct zfcp_data zfcp_data = { |
| 510 | .scsi_host_template = { |
| 511 | .name = "zfcp", |
| 512 | .module = THIS_MODULE, |
| 513 | .proc_name = "zfcp", |
| 514 | .slave_alloc = zfcp_scsi_slave_alloc, |
| 515 | .slave_configure = zfcp_scsi_slave_configure, |
| 516 | .slave_destroy = zfcp_scsi_slave_destroy, |
| 517 | .queuecommand = zfcp_scsi_queuecommand, |
| 518 | .eh_abort_handler = zfcp_scsi_eh_abort_handler, |
| 519 | .eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler, |
| 520 | .eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler, |
| 521 | .eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler, |
| 522 | .can_queue = 4096, |
| 523 | .this_id = -1, |
| 524 | .sg_tablesize = ZFCP_MAX_SBALES_PER_REQ, |
| 525 | .cmd_per_lun = 1, |
| 526 | .use_clustering = 1, |
| 527 | .sdev_attrs = zfcp_sysfs_sdev_attrs, |
| 528 | .max_sectors = (ZFCP_MAX_SBALES_PER_REQ * 8), |
Swen Schillig | 6022192 | 2008-07-02 10:56:38 +0200 | [diff] [blame] | 529 | .shost_attrs = zfcp_sysfs_shost_attrs, |
Martin Petermann | f76af7d7 | 2008-07-02 10:56:36 +0200 | [diff] [blame] | 530 | }, |
| 531 | }; |