Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * QLOGIC LINUX SOFTWARE |
| 3 | * |
| 4 | * QLogic ISP2x00 device driver for Linux 2.6.x |
| 5 | * Copyright (C) 2003-2004 QLogic Corporation |
| 6 | * (www.qlogic.com) |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the |
| 10 | * Free Software Foundation; either version 2, or (at your option) any |
| 11 | * later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | */ |
| 19 | #include "qla_def.h" |
| 20 | |
| 21 | #include <linux/moduleparam.h> |
| 22 | #include <linux/vmalloc.h> |
| 23 | #include <linux/smp_lock.h> |
| 24 | #include <linux/delay.h> |
| 25 | |
| 26 | #include <scsi/scsi_tcq.h> |
| 27 | #include <scsi/scsicam.h> |
| 28 | #include <scsi/scsi_transport.h> |
| 29 | #include <scsi/scsi_transport_fc.h> |
| 30 | |
| 31 | /* |
| 32 | * Driver version |
| 33 | */ |
| 34 | char qla2x00_version_str[40]; |
| 35 | |
| 36 | /* |
| 37 | * SRB allocation cache |
| 38 | */ |
| 39 | char srb_cachep_name[16]; |
| 40 | kmem_cache_t *srb_cachep; |
| 41 | |
| 42 | /* |
| 43 | * Stats for all adpaters. |
| 44 | */ |
| 45 | struct _qla2x00stats qla2x00_stats; |
| 46 | |
| 47 | /* |
| 48 | * Ioctl related information. |
| 49 | */ |
| 50 | int num_hosts; |
| 51 | int apiHBAInstance; |
| 52 | |
| 53 | /* |
| 54 | * Module parameter information and variables |
| 55 | */ |
| 56 | int ql2xmaxqdepth; |
| 57 | module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR); |
| 58 | MODULE_PARM_DESC(ql2xmaxqdepth, |
| 59 | "Maximum queue depth to report for target devices."); |
| 60 | |
| 61 | int ql2xlogintimeout = 20; |
| 62 | module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR); |
| 63 | MODULE_PARM_DESC(ql2xlogintimeout, |
| 64 | "Login timeout value in seconds."); |
| 65 | |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 66 | int qlport_down_retry = 30; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR); |
| 68 | MODULE_PARM_DESC(qlport_down_retry, |
| 69 | "Maximum number of command retries to a port that returns" |
| 70 | "a PORT-DOWN status."); |
| 71 | |
| 72 | int ql2xretrycount = 20; |
| 73 | module_param(ql2xretrycount, int, S_IRUGO|S_IWUSR); |
| 74 | MODULE_PARM_DESC(ql2xretrycount, |
| 75 | "Maximum number of mid-layer retries allowed for a command. " |
| 76 | "Default value is 20, "); |
| 77 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | int ql2xplogiabsentdevice; |
| 79 | module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR); |
| 80 | MODULE_PARM_DESC(ql2xplogiabsentdevice, |
| 81 | "Option to enable PLOGI to devices that are not present after " |
| 82 | "a Fabric scan. This is needed for several broken switches." |
| 83 | "Default is 0 - no PLOGI. 1 - perfom PLOGI."); |
| 84 | |
| 85 | int ql2xenablezio = 0; |
| 86 | module_param(ql2xenablezio, int, S_IRUGO|S_IRUSR); |
| 87 | MODULE_PARM_DESC(ql2xenablezio, |
| 88 | "Option to enable ZIO:If 1 then enable it otherwise" |
| 89 | " use the default set in the NVRAM." |
| 90 | " Default is 0 : disabled"); |
| 91 | |
| 92 | int ql2xintrdelaytimer = 10; |
| 93 | module_param(ql2xintrdelaytimer, int, S_IRUGO|S_IRUSR); |
| 94 | MODULE_PARM_DESC(ql2xintrdelaytimer, |
| 95 | "ZIO: Waiting time for Firmware before it generates an " |
| 96 | "interrupt to the host to notify completion of request."); |
| 97 | |
| 98 | int ConfigRequired; |
| 99 | module_param(ConfigRequired, int, S_IRUGO|S_IRUSR); |
| 100 | MODULE_PARM_DESC(ConfigRequired, |
| 101 | "If 1, then only configured devices passed in through the" |
| 102 | "ql2xopts parameter will be presented to the OS"); |
| 103 | |
| 104 | int Bind = BIND_BY_PORT_NAME; |
| 105 | module_param(Bind, int, S_IRUGO|S_IRUSR); |
| 106 | MODULE_PARM_DESC(Bind, |
| 107 | "Target persistent binding method: " |
| 108 | "0 by Portname (default); 1 by PortID; 2 by Nodename. "); |
| 109 | |
| 110 | int ql2xsuspendcount = SUSPEND_COUNT; |
| 111 | module_param(ql2xsuspendcount, int, S_IRUGO|S_IWUSR); |
| 112 | MODULE_PARM_DESC(ql2xsuspendcount, |
| 113 | "Number of 6-second suspend iterations to perform while a " |
| 114 | "target returns a <NOT READY> status. Default is 10 " |
| 115 | "iterations."); |
| 116 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | int ql2xloginretrycount = 0; |
| 118 | module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR); |
| 119 | MODULE_PARM_DESC(ql2xloginretrycount, |
| 120 | "Specify an alternate value for the NVRAM login retry count."); |
| 121 | |
| 122 | /* |
| 123 | * Proc structures and functions |
| 124 | */ |
| 125 | struct info_str { |
| 126 | char *buffer; |
| 127 | int length; |
| 128 | off_t offset; |
| 129 | int pos; |
| 130 | }; |
| 131 | |
| 132 | static void copy_mem_info(struct info_str *, char *, int); |
| 133 | static int copy_info(struct info_str *, char *, ...); |
| 134 | |
| 135 | static void qla2x00_free_device(scsi_qla_host_t *); |
| 136 | |
| 137 | static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha); |
| 138 | |
| 139 | /* |
| 140 | * SCSI host template entry points |
| 141 | */ |
| 142 | static int qla2xxx_slave_configure(struct scsi_device * device); |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 143 | static int qla2xxx_slave_alloc(struct scsi_device *); |
| 144 | static void qla2xxx_slave_destroy(struct scsi_device *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | static int qla2x00_queuecommand(struct scsi_cmnd *cmd, |
| 146 | void (*fn)(struct scsi_cmnd *)); |
| 147 | static int qla2xxx_eh_abort(struct scsi_cmnd *); |
| 148 | static int qla2xxx_eh_device_reset(struct scsi_cmnd *); |
| 149 | static int qla2xxx_eh_bus_reset(struct scsi_cmnd *); |
| 150 | static int qla2xxx_eh_host_reset(struct scsi_cmnd *); |
| 151 | static int qla2x00_loop_reset(scsi_qla_host_t *ha); |
| 152 | static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *); |
| 153 | |
| 154 | static int qla2x00_proc_info(struct Scsi_Host *, char *, char **, |
| 155 | off_t, int, int); |
| 156 | |
| 157 | static struct scsi_host_template qla2x00_driver_template = { |
| 158 | .module = THIS_MODULE, |
| 159 | .name = "qla2xxx", |
| 160 | .proc_name = "qla2xxx", |
| 161 | .proc_info = qla2x00_proc_info, |
| 162 | .queuecommand = qla2x00_queuecommand, |
| 163 | |
| 164 | .eh_abort_handler = qla2xxx_eh_abort, |
| 165 | .eh_device_reset_handler = qla2xxx_eh_device_reset, |
| 166 | .eh_bus_reset_handler = qla2xxx_eh_bus_reset, |
| 167 | .eh_host_reset_handler = qla2xxx_eh_host_reset, |
| 168 | |
| 169 | .slave_configure = qla2xxx_slave_configure, |
| 170 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 171 | .slave_alloc = qla2xxx_slave_alloc, |
| 172 | .slave_destroy = qla2xxx_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | .this_id = -1, |
| 174 | .cmd_per_lun = 3, |
| 175 | .use_clustering = ENABLE_CLUSTERING, |
| 176 | .sg_tablesize = SG_ALL, |
| 177 | |
| 178 | /* |
| 179 | * The RISC allows for each command to transfer (2^32-1) bytes of data, |
| 180 | * which equates to 0x800000 sectors. |
| 181 | */ |
| 182 | .max_sectors = 0xFFFF, |
| 183 | }; |
| 184 | |
| 185 | static struct scsi_transport_template *qla2xxx_transport_template = NULL; |
| 186 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | /* TODO Convert to inlines |
| 188 | * |
| 189 | * Timer routines |
| 190 | */ |
| 191 | #define WATCH_INTERVAL 1 /* number of seconds */ |
| 192 | |
| 193 | static void qla2x00_timer(scsi_qla_host_t *); |
| 194 | |
| 195 | static __inline__ void qla2x00_start_timer(scsi_qla_host_t *, |
| 196 | void *, unsigned long); |
| 197 | static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long); |
| 198 | static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *); |
| 199 | |
| 200 | static inline void |
| 201 | qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval) |
| 202 | { |
| 203 | init_timer(&ha->timer); |
| 204 | ha->timer.expires = jiffies + interval * HZ; |
| 205 | ha->timer.data = (unsigned long)ha; |
| 206 | ha->timer.function = (void (*)(unsigned long))func; |
| 207 | add_timer(&ha->timer); |
| 208 | ha->timer_active = 1; |
| 209 | } |
| 210 | |
| 211 | static inline void |
| 212 | qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval) |
| 213 | { |
| 214 | mod_timer(&ha->timer, jiffies + interval * HZ); |
| 215 | } |
| 216 | |
| 217 | static __inline__ void |
| 218 | qla2x00_stop_timer(scsi_qla_host_t *ha) |
| 219 | { |
| 220 | del_timer_sync(&ha->timer); |
| 221 | ha->timer_active = 0; |
| 222 | } |
| 223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | static int qla2x00_do_dpc(void *data); |
| 225 | |
| 226 | static void qla2x00_rst_aen(scsi_qla_host_t *); |
| 227 | |
| 228 | static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *); |
| 229 | static void qla2x00_mem_free(scsi_qla_host_t *ha); |
| 230 | static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha); |
| 231 | static void qla2x00_free_sp_pool(scsi_qla_host_t *ha); |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 232 | static srb_t *qla2x00_get_new_sp(scsi_qla_host_t *); |
| 233 | static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *); |
| 234 | void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | /* -------------------------------------------------------------------------- */ |
| 237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | static char * |
| 239 | qla2x00_get_pci_info_str(struct scsi_qla_host *ha, char *str) |
| 240 | { |
| 241 | static char *pci_bus_modes[] = { |
| 242 | "33", "66", "100", "133", |
| 243 | }; |
| 244 | uint16_t pci_bus; |
| 245 | |
| 246 | strcpy(str, "PCI"); |
| 247 | pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9; |
| 248 | if (pci_bus) { |
| 249 | strcat(str, "-X ("); |
| 250 | strcat(str, pci_bus_modes[pci_bus]); |
| 251 | } else { |
| 252 | pci_bus = (ha->pci_attr & BIT_8) >> 8; |
| 253 | strcat(str, " ("); |
| 254 | strcat(str, pci_bus_modes[pci_bus]); |
| 255 | } |
| 256 | strcat(str, " MHz)"); |
| 257 | |
| 258 | return (str); |
| 259 | } |
| 260 | |
| 261 | char * |
| 262 | qla2x00_get_fw_version_str(struct scsi_qla_host *ha, char *str) |
| 263 | { |
| 264 | char un_str[10]; |
| 265 | |
| 266 | sprintf(str, "%d.%02d.%02d ", ha->fw_major_version, |
| 267 | ha->fw_minor_version, |
| 268 | ha->fw_subminor_version); |
| 269 | |
| 270 | if (ha->fw_attributes & BIT_9) { |
| 271 | strcat(str, "FLX"); |
| 272 | return (str); |
| 273 | } |
| 274 | |
| 275 | switch (ha->fw_attributes & 0xFF) { |
| 276 | case 0x7: |
| 277 | strcat(str, "EF"); |
| 278 | break; |
| 279 | case 0x17: |
| 280 | strcat(str, "TP"); |
| 281 | break; |
| 282 | case 0x37: |
| 283 | strcat(str, "IP"); |
| 284 | break; |
| 285 | case 0x77: |
| 286 | strcat(str, "VI"); |
| 287 | break; |
| 288 | default: |
| 289 | sprintf(un_str, "(%x)", ha->fw_attributes); |
| 290 | strcat(str, un_str); |
| 291 | break; |
| 292 | } |
| 293 | if (ha->fw_attributes & 0x100) |
| 294 | strcat(str, "X"); |
| 295 | |
| 296 | return (str); |
| 297 | } |
| 298 | |
| 299 | /************************************************************************** |
| 300 | * qla2x00_queuecommand |
| 301 | * |
| 302 | * Description: |
| 303 | * Queue a command to the controller. |
| 304 | * |
| 305 | * Input: |
| 306 | * cmd - pointer to Scsi cmd structure |
| 307 | * fn - pointer to Scsi done function |
| 308 | * |
| 309 | * Returns: |
| 310 | * 0 - Always |
| 311 | * |
| 312 | * Note: |
| 313 | * The mid-level driver tries to ensures that queuecommand never gets invoked |
| 314 | * concurrently with itself or the interrupt handler (although the |
| 315 | * interrupt handler may call this routine as part of request-completion |
| 316 | * handling). |
| 317 | **************************************************************************/ |
| 318 | static int |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 319 | qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 321 | scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 322 | fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 323 | srb_t *sp; |
| 324 | int rval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 326 | if (!fcport) { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 327 | cmd->result = DID_NO_CONNECT << 16; |
| 328 | goto qc_fail_command; |
| 329 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 331 | if (atomic_read(&fcport->state) != FCS_ONLINE) { |
| 332 | if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || |
| 333 | atomic_read(&ha->loop_state) == LOOP_DEAD) { |
| 334 | cmd->result = DID_NO_CONNECT << 16; |
| 335 | goto qc_fail_command; |
| 336 | } |
| 337 | goto qc_host_busy; |
| 338 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
| 340 | spin_unlock_irq(ha->host->host_lock); |
| 341 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 342 | /* Allocate a command packet from the "sp" pool. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | if ((sp = qla2x00_get_new_sp(ha)) == NULL) { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 344 | goto qc_host_busy_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | } |
| 346 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 347 | sp->ha = ha; |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 348 | sp->fcport = fcport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | sp->cmd = cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | sp->flags = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | sp->err_id = 0; |
| 352 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 353 | CMD_SP(cmd) = (void *)sp; |
| 354 | cmd->scsi_done = done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 356 | rval = qla2x00_start_scsi(sp); |
| 357 | if (rval != QLA_SUCCESS) |
| 358 | goto qc_host_busy_free_sp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 360 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
| 361 | if (ha->flags.online && ha->flags.process_response_queue && |
| 362 | ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { |
| 363 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 365 | spin_lock_irqsave(&ha->hardware_lock, flags); |
| 366 | qla2x00_process_response_queue(ha); |
| 367 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | } |
| 369 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | spin_lock_irq(ha->host->host_lock); |
| 371 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 372 | return 0; |
| 373 | |
| 374 | qc_host_busy_free_sp: |
| 375 | qla2x00_sp_free_dma(ha, sp); |
| 376 | CMD_SP(cmd) = NULL; |
| 377 | mempool_free(sp, ha->srb_mempool); |
| 378 | |
| 379 | qc_host_busy_lock: |
| 380 | spin_lock_irq(ha->host->host_lock); |
| 381 | |
| 382 | qc_host_busy: |
| 383 | return SCSI_MLQUEUE_HOST_BUSY; |
| 384 | |
| 385 | qc_fail_command: |
| 386 | done(cmd); |
| 387 | |
| 388 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | } |
| 390 | |
| 391 | /* |
| 392 | * qla2x00_eh_wait_on_command |
| 393 | * Waits for the command to be returned by the Firmware for some |
| 394 | * max time. |
| 395 | * |
| 396 | * Input: |
| 397 | * ha = actual ha whose done queue will contain the command |
| 398 | * returned by firmware. |
| 399 | * cmd = Scsi Command to wait on. |
| 400 | * flag = Abort/Reset(Bus or Device Reset) |
| 401 | * |
| 402 | * Return: |
| 403 | * Not Found : 0 |
| 404 | * Found : 1 |
| 405 | */ |
| 406 | static int |
| 407 | qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd) |
| 408 | { |
| 409 | #define ABORT_POLLING_PERIOD HZ |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 410 | #define ABORT_WAIT_ITER ((10 * HZ) / (ABORT_POLLING_PERIOD)) |
| 411 | unsigned long wait_iter = ABORT_WAIT_ITER; |
| 412 | int ret = QLA_SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 414 | while (CMD_SP(cmd)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 416 | schedule_timeout(ABORT_POLLING_PERIOD); |
| 417 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 418 | if (--wait_iter) |
| 419 | break; |
| 420 | } |
| 421 | if (CMD_SP(cmd)) |
| 422 | ret = QLA_FUNCTION_FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 424 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | } |
| 426 | |
| 427 | /* |
| 428 | * qla2x00_wait_for_hba_online |
| 429 | * Wait till the HBA is online after going through |
| 430 | * <= MAX_RETRIES_OF_ISP_ABORT or |
| 431 | * finally HBA is disabled ie marked offline |
| 432 | * |
| 433 | * Input: |
| 434 | * ha - pointer to host adapter structure |
| 435 | * |
| 436 | * Note: |
| 437 | * Does context switching-Release SPIN_LOCK |
| 438 | * (if any) before calling this routine. |
| 439 | * |
| 440 | * Return: |
| 441 | * Success (Adapter is online) : 0 |
| 442 | * Failed (Adapter is offline/disabled) : 1 |
| 443 | */ |
| 444 | static int |
| 445 | qla2x00_wait_for_hba_online(scsi_qla_host_t *ha) |
| 446 | { |
| 447 | int return_status; |
| 448 | unsigned long wait_online; |
| 449 | |
| 450 | wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ); |
| 451 | while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) || |
| 452 | test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) || |
| 453 | test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) || |
| 454 | ha->dpc_active) && time_before(jiffies, wait_online)) { |
| 455 | |
| 456 | msleep(1000); |
| 457 | } |
| 458 | if (ha->flags.online) |
| 459 | return_status = QLA_SUCCESS; |
| 460 | else |
| 461 | return_status = QLA_FUNCTION_FAILED; |
| 462 | |
| 463 | DEBUG2(printk("%s return_status=%d\n",__func__,return_status)); |
| 464 | |
| 465 | return (return_status); |
| 466 | } |
| 467 | |
| 468 | /* |
| 469 | * qla2x00_wait_for_loop_ready |
| 470 | * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop |
| 471 | * to be in LOOP_READY state. |
| 472 | * Input: |
| 473 | * ha - pointer to host adapter structure |
| 474 | * |
| 475 | * Note: |
| 476 | * Does context switching-Release SPIN_LOCK |
| 477 | * (if any) before calling this routine. |
| 478 | * |
| 479 | * |
| 480 | * Return: |
| 481 | * Success (LOOP_READY) : 0 |
| 482 | * Failed (LOOP_NOT_READY) : 1 |
| 483 | */ |
| 484 | static inline int |
| 485 | qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha) |
| 486 | { |
| 487 | int return_status = QLA_SUCCESS; |
| 488 | unsigned long loop_timeout ; |
| 489 | |
| 490 | /* wait for 5 min at the max for loop to be ready */ |
| 491 | loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ); |
| 492 | |
| 493 | while ((!atomic_read(&ha->loop_down_timer) && |
| 494 | atomic_read(&ha->loop_state) == LOOP_DOWN) || |
| 495 | test_bit(CFG_ACTIVE, &ha->cfg_flags) || |
| 496 | atomic_read(&ha->loop_state) != LOOP_READY) { |
| 497 | msleep(1000); |
| 498 | if (time_after_eq(jiffies, loop_timeout)) { |
| 499 | return_status = QLA_FUNCTION_FAILED; |
| 500 | break; |
| 501 | } |
| 502 | } |
| 503 | return (return_status); |
| 504 | } |
| 505 | |
| 506 | /************************************************************************** |
| 507 | * qla2xxx_eh_abort |
| 508 | * |
| 509 | * Description: |
| 510 | * The abort function will abort the specified command. |
| 511 | * |
| 512 | * Input: |
| 513 | * cmd = Linux SCSI command packet to be aborted. |
| 514 | * |
| 515 | * Returns: |
| 516 | * Either SUCCESS or FAILED. |
| 517 | * |
| 518 | * Note: |
| 519 | **************************************************************************/ |
| 520 | int |
| 521 | qla2xxx_eh_abort(struct scsi_cmnd *cmd) |
| 522 | { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 523 | scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| 524 | srb_t *sp; |
| 525 | int ret, i; |
| 526 | unsigned int id, lun; |
| 527 | unsigned long serial; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 529 | if (!CMD_SP(cmd)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | return FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 532 | ret = FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 534 | id = cmd->device->id; |
| 535 | lun = cmd->device->lun; |
| 536 | serial = cmd->serial_number; |
| 537 | |
| 538 | /* Check active list for command command. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | spin_unlock_irq(ha->host->host_lock); |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 540 | spin_lock(&ha->hardware_lock); |
| 541 | for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) { |
| 542 | sp = ha->outstanding_cmds[i]; |
| 543 | |
| 544 | if (sp == NULL) |
| 545 | continue; |
| 546 | |
| 547 | if (sp->cmd != cmd) |
| 548 | continue; |
| 549 | |
| 550 | DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld " |
| 551 | "sp->state=%x\n", __func__, ha->host_no, sp, serial, |
| 552 | sp->state)); |
| 553 | DEBUG3(qla2x00_print_scsi_cmd(cmd);) |
| 554 | |
| 555 | spin_unlock(&ha->hardware_lock); |
| 556 | if (qla2x00_abort_command(ha, sp)) { |
| 557 | DEBUG2(printk("%s(%ld): abort_command " |
| 558 | "mbx failed.\n", __func__, ha->host_no)); |
| 559 | } else { |
| 560 | DEBUG3(printk("%s(%ld): abort_command " |
| 561 | "mbx success.\n", __func__, ha->host_no)); |
| 562 | ret = SUCCESS; |
| 563 | } |
| 564 | spin_lock(&ha->hardware_lock); |
| 565 | |
| 566 | break; |
| 567 | } |
| 568 | |
| 569 | /* Wait for the command to be returned. */ |
| 570 | if (ret == SUCCESS) { |
| 571 | spin_unlock(&ha->hardware_lock); |
| 572 | if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) { |
| 573 | qla_printk(KERN_ERR, ha, |
| 574 | "scsi(%ld:%d:%d): Abort handler timed out -- %lx " |
| 575 | "%x.\n", ha->host_no, id, lun, serial, ret); |
| 576 | } |
| 577 | spin_lock(&ha->hardware_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | } |
| 579 | spin_lock_irq(ha->host->host_lock); |
| 580 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 581 | qla_printk(KERN_INFO, ha, |
| 582 | "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no, |
| 583 | id, lun, serial, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 585 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | /************************************************************************** |
| 589 | * qla2x00_eh_wait_for_pending_target_commands |
| 590 | * |
| 591 | * Description: |
| 592 | * Waits for all the commands to come back from the specified target. |
| 593 | * |
| 594 | * Input: |
| 595 | * ha - pointer to scsi_qla_host structure. |
| 596 | * t - target |
| 597 | * Returns: |
| 598 | * Either SUCCESS or FAILED. |
| 599 | * |
| 600 | * Note: |
| 601 | **************************************************************************/ |
| 602 | static int |
| 603 | qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t) |
| 604 | { |
| 605 | int cnt; |
| 606 | int status; |
| 607 | srb_t *sp; |
| 608 | struct scsi_cmnd *cmd; |
| 609 | |
| 610 | status = 0; |
| 611 | |
| 612 | /* |
| 613 | * Waiting for all commands for the designated target in the active |
| 614 | * array |
| 615 | */ |
| 616 | for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { |
| 617 | spin_lock(&ha->hardware_lock); |
| 618 | sp = ha->outstanding_cmds[cnt]; |
| 619 | if (sp) { |
| 620 | cmd = sp->cmd; |
| 621 | spin_unlock(&ha->hardware_lock); |
| 622 | if (cmd->device->id == t) { |
| 623 | if (!qla2x00_eh_wait_on_command(ha, cmd)) { |
| 624 | status = 1; |
| 625 | break; |
| 626 | } |
| 627 | } |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 628 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | spin_unlock(&ha->hardware_lock); |
| 630 | } |
| 631 | } |
| 632 | return (status); |
| 633 | } |
| 634 | |
| 635 | |
| 636 | /************************************************************************** |
| 637 | * qla2xxx_eh_device_reset |
| 638 | * |
| 639 | * Description: |
| 640 | * The device reset function will reset the target and abort any |
| 641 | * executing commands. |
| 642 | * |
| 643 | * NOTE: The use of SP is undefined within this context. Do *NOT* |
| 644 | * attempt to use this value, even if you determine it is |
| 645 | * non-null. |
| 646 | * |
| 647 | * Input: |
| 648 | * cmd = Linux SCSI command packet of the command that cause the |
| 649 | * bus device reset. |
| 650 | * |
| 651 | * Returns: |
| 652 | * SUCCESS/FAILURE (defined as macro in scsi.h). |
| 653 | * |
| 654 | **************************************************************************/ |
| 655 | int |
| 656 | qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) |
| 657 | { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 658 | scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 659 | fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 660 | srb_t *sp; |
| 661 | int ret; |
| 662 | unsigned int id, lun; |
| 663 | unsigned long serial; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 665 | ret = FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 667 | id = cmd->device->id; |
| 668 | lun = cmd->device->lun; |
| 669 | serial = cmd->serial_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 671 | sp = (srb_t *) CMD_SP(cmd); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 672 | if (!sp || !fcport) |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 673 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | |
| 675 | qla_printk(KERN_INFO, ha, |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 676 | "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | |
| 678 | spin_unlock_irq(ha->host->host_lock); |
| 679 | |
| 680 | if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | spin_lock_irq(ha->host->host_lock); |
| 682 | goto eh_dev_reset_done; |
| 683 | } |
| 684 | |
| 685 | if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 686 | if (qla2x00_device_reset(ha, fcport) == 0) |
| 687 | ret = SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | |
| 689 | #if defined(LOGOUT_AFTER_DEVICE_RESET) |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 690 | if (ret == SUCCESS) { |
| 691 | if (fcport->flags & FC_FABRIC_DEVICE) { |
| 692 | qla2x00_fabric_logout(ha, fcport->loop_id); |
| 693 | qla2x00_mark_device_lost(ha, fcport); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | } |
| 695 | } |
| 696 | #endif |
| 697 | } else { |
| 698 | DEBUG2(printk(KERN_INFO |
| 699 | "%s failed: loop not ready\n",__func__);) |
| 700 | } |
| 701 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 702 | if (ret == FAILED) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | DEBUG3(printk("%s(%ld): device reset failed\n", |
| 704 | __func__, ha->host_no)); |
| 705 | qla_printk(KERN_INFO, ha, "%s: device reset failed\n", |
| 706 | __func__); |
| 707 | |
| 708 | goto eh_dev_reset_done; |
| 709 | } |
| 710 | |
| 711 | /* |
| 712 | * If we are coming down the EH path, wait for all commands to |
| 713 | * complete for the device. |
| 714 | */ |
| 715 | if (cmd->device->host->eh_active) { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 716 | if (qla2x00_eh_wait_for_pending_target_commands(ha, id)) |
| 717 | ret = FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 719 | if (ret == FAILED) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | DEBUG3(printk("%s(%ld): failed while waiting for " |
| 721 | "commands\n", __func__, ha->host_no)); |
| 722 | qla_printk(KERN_INFO, ha, |
| 723 | "%s: failed while waiting for commands\n", |
| 724 | __func__); |
| 725 | |
| 726 | goto eh_dev_reset_done; |
| 727 | } |
| 728 | } |
| 729 | |
| 730 | qla_printk(KERN_INFO, ha, |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 731 | "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no, id, lun); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | |
| 733 | eh_dev_reset_done: |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 734 | spin_lock_irq(ha->host->host_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 736 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | } |
| 738 | |
| 739 | /************************************************************************** |
| 740 | * qla2x00_eh_wait_for_pending_commands |
| 741 | * |
| 742 | * Description: |
| 743 | * Waits for all the commands to come back from the specified host. |
| 744 | * |
| 745 | * Input: |
| 746 | * ha - pointer to scsi_qla_host structure. |
| 747 | * |
| 748 | * Returns: |
| 749 | * 1 : SUCCESS |
| 750 | * 0 : FAILED |
| 751 | * |
| 752 | * Note: |
| 753 | **************************************************************************/ |
| 754 | static int |
| 755 | qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha) |
| 756 | { |
| 757 | int cnt; |
| 758 | int status; |
| 759 | srb_t *sp; |
| 760 | struct scsi_cmnd *cmd; |
| 761 | |
| 762 | status = 1; |
| 763 | |
| 764 | /* |
| 765 | * Waiting for all commands for the designated target in the active |
| 766 | * array |
| 767 | */ |
| 768 | for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { |
| 769 | spin_lock(&ha->hardware_lock); |
| 770 | sp = ha->outstanding_cmds[cnt]; |
| 771 | if (sp) { |
| 772 | cmd = sp->cmd; |
| 773 | spin_unlock(&ha->hardware_lock); |
| 774 | status = qla2x00_eh_wait_on_command(ha, cmd); |
| 775 | if (status == 0) |
| 776 | break; |
| 777 | } |
| 778 | else { |
| 779 | spin_unlock(&ha->hardware_lock); |
| 780 | } |
| 781 | } |
| 782 | return (status); |
| 783 | } |
| 784 | |
| 785 | |
| 786 | /************************************************************************** |
| 787 | * qla2xxx_eh_bus_reset |
| 788 | * |
| 789 | * Description: |
| 790 | * The bus reset function will reset the bus and abort any executing |
| 791 | * commands. |
| 792 | * |
| 793 | * Input: |
| 794 | * cmd = Linux SCSI command packet of the command that cause the |
| 795 | * bus reset. |
| 796 | * |
| 797 | * Returns: |
| 798 | * SUCCESS/FAILURE (defined as macro in scsi.h). |
| 799 | * |
| 800 | **************************************************************************/ |
| 801 | int |
| 802 | qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) |
| 803 | { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 804 | scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 805 | fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | srb_t *sp; |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 807 | int ret; |
| 808 | unsigned int id, lun; |
| 809 | unsigned long serial; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 811 | ret = FAILED; |
| 812 | |
| 813 | id = cmd->device->id; |
| 814 | lun = cmd->device->lun; |
| 815 | serial = cmd->serial_number; |
| 816 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | sp = (srb_t *) CMD_SP(cmd); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 818 | if (!sp || !fcport) |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 819 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | |
| 821 | qla_printk(KERN_INFO, ha, |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 822 | "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | |
| 824 | spin_unlock_irq(ha->host->host_lock); |
| 825 | |
| 826 | if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) { |
| 827 | DEBUG2(printk("%s failed:board disabled\n",__func__)); |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 828 | goto eh_bus_reset_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | } |
| 830 | |
| 831 | if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 832 | if (qla2x00_loop_reset(ha) == QLA_SUCCESS) |
| 833 | ret = SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | } |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 835 | if (ret == FAILED) |
| 836 | goto eh_bus_reset_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | |
| 838 | /* Waiting for our command in done_queue to be returned to OS.*/ |
| 839 | if (cmd->device->host->eh_active) |
| 840 | if (!qla2x00_eh_wait_for_pending_commands(ha)) |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 841 | ret = FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 843 | eh_bus_reset_done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__, |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 845 | (ret == FAILED) ? "failed" : "succeded"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 847 | spin_lock_irq(ha->host->host_lock); |
| 848 | |
| 849 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | } |
| 851 | |
| 852 | /************************************************************************** |
| 853 | * qla2xxx_eh_host_reset |
| 854 | * |
| 855 | * Description: |
| 856 | * The reset function will reset the Adapter. |
| 857 | * |
| 858 | * Input: |
| 859 | * cmd = Linux SCSI command packet of the command that cause the |
| 860 | * adapter reset. |
| 861 | * |
| 862 | * Returns: |
| 863 | * Either SUCCESS or FAILED. |
| 864 | * |
| 865 | * Note: |
| 866 | **************************************************************************/ |
| 867 | int |
| 868 | qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) |
| 869 | { |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 870 | scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 871 | fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 872 | srb_t *sp; |
| 873 | int ret; |
| 874 | unsigned int id, lun; |
| 875 | unsigned long serial; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 877 | ret = FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 879 | id = cmd->device->id; |
| 880 | lun = cmd->device->lun; |
| 881 | serial = cmd->serial_number; |
| 882 | |
| 883 | sp = (srb_t *) CMD_SP(cmd); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 884 | if (!sp || !fcport) |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 885 | return ret; |
| 886 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | qla_printk(KERN_INFO, ha, |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 888 | "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | |
| 890 | spin_unlock_irq(ha->host->host_lock); |
| 891 | |
| 892 | if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 893 | goto eh_host_reset_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | |
| 895 | /* |
| 896 | * Fixme-may be dpc thread is active and processing |
| 897 | * loop_resync,so wait a while for it to |
| 898 | * be completed and then issue big hammer.Otherwise |
| 899 | * it may cause I/O failure as big hammer marks the |
| 900 | * devices as lost kicking of the port_down_timer |
| 901 | * while dpc is stuck for the mailbox to complete. |
| 902 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | qla2x00_wait_for_loop_ready(ha); |
| 904 | set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); |
| 905 | if (qla2x00_abort_isp(ha)) { |
| 906 | clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); |
| 907 | /* failed. schedule dpc to try */ |
| 908 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
| 909 | |
| 910 | if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 911 | goto eh_host_reset_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); |
| 914 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | /* Waiting for our command in done_queue to be returned to OS.*/ |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 916 | if (qla2x00_eh_wait_for_pending_commands(ha)) |
| 917 | ret = SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 919 | eh_host_reset_lock: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | spin_lock_irq(ha->host->host_lock); |
| 921 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 922 | qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__, |
| 923 | (ret == FAILED) ? "failed" : "succeded"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 925 | return ret; |
| 926 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | |
| 928 | /* |
| 929 | * qla2x00_loop_reset |
| 930 | * Issue loop reset. |
| 931 | * |
| 932 | * Input: |
| 933 | * ha = adapter block pointer. |
| 934 | * |
| 935 | * Returns: |
| 936 | * 0 = success |
| 937 | */ |
| 938 | static int |
| 939 | qla2x00_loop_reset(scsi_qla_host_t *ha) |
| 940 | { |
| 941 | int status = QLA_SUCCESS; |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 942 | struct fc_port *fcport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | |
| 944 | if (ha->flags.enable_lip_reset) { |
| 945 | status = qla2x00_lip_reset(ha); |
| 946 | } |
| 947 | |
| 948 | if (status == QLA_SUCCESS && ha->flags.enable_target_reset) { |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 949 | list_for_each_entry(fcport, &ha->fcports, list) { |
| 950 | if (fcport->port_type != FCT_TARGET) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | continue; |
| 952 | |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 953 | status = qla2x00_target_reset(ha, fcport); |
| 954 | if (status != QLA_SUCCESS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | } |
| 957 | } |
| 958 | |
| 959 | if (status == QLA_SUCCESS && |
| 960 | ((!ha->flags.enable_target_reset && |
| 961 | !ha->flags.enable_lip_reset) || |
| 962 | ha->flags.enable_lip_full_login)) { |
| 963 | |
| 964 | status = qla2x00_full_login_lip(ha); |
| 965 | } |
| 966 | |
| 967 | /* Issue marker command only when we are going to start the I/O */ |
| 968 | ha->marker_needed = 1; |
| 969 | |
| 970 | if (status) { |
| 971 | /* Empty */ |
| 972 | DEBUG2_3(printk("%s(%ld): **** FAILED ****\n", |
| 973 | __func__, |
| 974 | ha->host_no);) |
| 975 | } else { |
| 976 | /* Empty */ |
| 977 | DEBUG3(printk("%s(%ld): exiting normally.\n", |
| 978 | __func__, |
| 979 | ha->host_no);) |
| 980 | } |
| 981 | |
| 982 | return(status); |
| 983 | } |
| 984 | |
| 985 | /* |
| 986 | * qla2x00_device_reset |
| 987 | * Issue bus device reset message to the target. |
| 988 | * |
| 989 | * Input: |
| 990 | * ha = adapter block pointer. |
| 991 | * t = SCSI ID. |
| 992 | * TARGET_QUEUE_LOCK must be released. |
| 993 | * ADAPTER_STATE_LOCK must be released. |
| 994 | * |
| 995 | * Context: |
| 996 | * Kernel context. |
| 997 | */ |
| 998 | static int |
| 999 | qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport) |
| 1000 | { |
| 1001 | /* Abort Target command will clear Reservation */ |
| 1002 | return qla2x00_abort_target(reset_fcport); |
| 1003 | } |
| 1004 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 1005 | static int |
| 1006 | qla2xxx_slave_alloc(struct scsi_device *sdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | { |
| 1008 | scsi_qla_host_t *ha = to_qla_host(sdev->host); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 1009 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
| 1010 | fc_port_t *fcport; |
| 1011 | int found; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 1013 | if (!rport) |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 1014 | return -ENXIO; |
| 1015 | |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 1016 | found = 0; |
| 1017 | list_for_each_entry(fcport, &ha->fcports, list) { |
| 1018 | if (rport->port_name == |
| 1019 | be64_to_cpu(*(uint64_t *)fcport->port_name)) { |
| 1020 | found++; |
| 1021 | break; |
| 1022 | } |
| 1023 | |
| 1024 | } |
| 1025 | if (!found) |
| 1026 | return -ENXIO; |
| 1027 | |
| 1028 | sdev->hostdata = fcport; |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 1029 | |
| 1030 | return 0; |
| 1031 | } |
| 1032 | |
| 1033 | static int |
| 1034 | qla2xxx_slave_configure(struct scsi_device *sdev) |
| 1035 | { |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1036 | scsi_qla_host_t *ha = to_qla_host(sdev->host); |
| 1037 | struct fc_rport *rport = starget_to_rport(sdev->sdev_target); |
| 1038 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 1039 | if (sdev->tagged_supported) |
| 1040 | scsi_activate_tcq(sdev, 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | else |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 1042 | scsi_deactivate_tcq(sdev, 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1044 | rport->dev_loss_tmo = ha->port_down_retry_count + 5; |
| 1045 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 1046 | return 0; |
| 1047 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 1049 | static void |
| 1050 | qla2xxx_slave_destroy(struct scsi_device *sdev) |
| 1051 | { |
| 1052 | sdev->hostdata = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | } |
| 1054 | |
| 1055 | /** |
| 1056 | * qla2x00_config_dma_addressing() - Configure OS DMA addressing method. |
| 1057 | * @ha: HA context |
| 1058 | * |
| 1059 | * At exit, the @ha's flags.enable_64bit_addressing set to indicated |
| 1060 | * supported addressing method. |
| 1061 | */ |
| 1062 | static void |
| 1063 | qla2x00_config_dma_addressing(scsi_qla_host_t *ha) |
| 1064 | { |
| 1065 | /* Assume 32bit DMA address */ |
| 1066 | ha->flags.enable_64bit_addressing = 0; |
| 1067 | ha->calc_request_entries = qla2x00_calc_iocbs_32; |
| 1068 | ha->build_scsi_iocbs = qla2x00_build_scsi_iocbs_32; |
| 1069 | |
| 1070 | /* |
| 1071 | * Given the two variants pci_set_dma_mask(), allow the compiler to |
| 1072 | * assist in setting the proper dma mask. |
| 1073 | */ |
| 1074 | if (sizeof(dma_addr_t) > 4) { |
| 1075 | if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK) == 0) { |
| 1076 | ha->flags.enable_64bit_addressing = 1; |
| 1077 | ha->calc_request_entries = qla2x00_calc_iocbs_64; |
| 1078 | ha->build_scsi_iocbs = qla2x00_build_scsi_iocbs_64; |
| 1079 | |
| 1080 | if (pci_set_consistent_dma_mask(ha->pdev, |
| 1081 | DMA_64BIT_MASK)) { |
| 1082 | qla_printk(KERN_DEBUG, ha, |
| 1083 | "Failed to set 64 bit PCI consistent mask; " |
| 1084 | "using 32 bit.\n"); |
| 1085 | pci_set_consistent_dma_mask(ha->pdev, |
| 1086 | DMA_32BIT_MASK); |
| 1087 | } |
| 1088 | } else { |
| 1089 | qla_printk(KERN_DEBUG, ha, |
| 1090 | "Failed to set 64 bit PCI DMA mask, falling back " |
| 1091 | "to 32 bit MASK.\n"); |
| 1092 | pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK); |
| 1093 | } |
| 1094 | } else { |
| 1095 | pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK); |
| 1096 | } |
| 1097 | } |
| 1098 | |
| 1099 | static int |
| 1100 | qla2x00_iospace_config(scsi_qla_host_t *ha) |
| 1101 | { |
| 1102 | unsigned long pio, pio_len, pio_flags; |
| 1103 | unsigned long mmio, mmio_len, mmio_flags; |
| 1104 | |
| 1105 | /* We only need PIO for Flash operations on ISP2312 v2 chips. */ |
| 1106 | pio = pci_resource_start(ha->pdev, 0); |
| 1107 | pio_len = pci_resource_len(ha->pdev, 0); |
| 1108 | pio_flags = pci_resource_flags(ha->pdev, 0); |
| 1109 | if (pio_flags & IORESOURCE_IO) { |
| 1110 | if (pio_len < MIN_IOBASE_LEN) { |
| 1111 | qla_printk(KERN_WARNING, ha, |
| 1112 | "Invalid PCI I/O region size (%s)...\n", |
| 1113 | pci_name(ha->pdev)); |
| 1114 | pio = 0; |
| 1115 | } |
| 1116 | } else { |
| 1117 | qla_printk(KERN_WARNING, ha, |
| 1118 | "region #0 not a PIO resource (%s)...\n", |
| 1119 | pci_name(ha->pdev)); |
| 1120 | pio = 0; |
| 1121 | } |
| 1122 | |
| 1123 | /* Use MMIO operations for all accesses. */ |
| 1124 | mmio = pci_resource_start(ha->pdev, 1); |
| 1125 | mmio_len = pci_resource_len(ha->pdev, 1); |
| 1126 | mmio_flags = pci_resource_flags(ha->pdev, 1); |
| 1127 | |
| 1128 | if (!(mmio_flags & IORESOURCE_MEM)) { |
| 1129 | qla_printk(KERN_ERR, ha, |
| 1130 | "region #0 not an MMIO resource (%s), aborting\n", |
| 1131 | pci_name(ha->pdev)); |
| 1132 | goto iospace_error_exit; |
| 1133 | } |
| 1134 | if (mmio_len < MIN_IOBASE_LEN) { |
| 1135 | qla_printk(KERN_ERR, ha, |
| 1136 | "Invalid PCI mem region size (%s), aborting\n", |
| 1137 | pci_name(ha->pdev)); |
| 1138 | goto iospace_error_exit; |
| 1139 | } |
| 1140 | |
| 1141 | if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) { |
| 1142 | qla_printk(KERN_WARNING, ha, |
| 1143 | "Failed to reserve PIO/MMIO regions (%s)\n", |
| 1144 | pci_name(ha->pdev)); |
| 1145 | |
| 1146 | goto iospace_error_exit; |
| 1147 | } |
| 1148 | |
| 1149 | ha->pio_address = pio; |
| 1150 | ha->pio_length = pio_len; |
| 1151 | ha->iobase = ioremap(mmio, MIN_IOBASE_LEN); |
| 1152 | if (!ha->iobase) { |
| 1153 | qla_printk(KERN_ERR, ha, |
| 1154 | "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev)); |
| 1155 | |
| 1156 | goto iospace_error_exit; |
| 1157 | } |
| 1158 | |
| 1159 | return (0); |
| 1160 | |
| 1161 | iospace_error_exit: |
| 1162 | return (-ENOMEM); |
| 1163 | } |
| 1164 | |
| 1165 | /* |
| 1166 | * PCI driver interface |
| 1167 | */ |
| 1168 | int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info) |
| 1169 | { |
| 1170 | int ret; |
| 1171 | device_reg_t __iomem *reg; |
| 1172 | struct Scsi_Host *host; |
| 1173 | scsi_qla_host_t *ha; |
| 1174 | unsigned long flags = 0; |
| 1175 | unsigned long wait_switch = 0; |
| 1176 | char pci_info[20]; |
| 1177 | char fw_str[30]; |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1178 | fc_port_t *fcport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1179 | |
| 1180 | if (pci_enable_device(pdev)) |
| 1181 | return -1; |
| 1182 | |
| 1183 | host = scsi_host_alloc(&qla2x00_driver_template, |
| 1184 | sizeof(scsi_qla_host_t)); |
| 1185 | if (host == NULL) { |
| 1186 | printk(KERN_WARNING |
| 1187 | "qla2xxx: Couldn't allocate host from scsi layer!\n"); |
| 1188 | goto probe_disable_device; |
| 1189 | } |
| 1190 | |
| 1191 | /* Clear our data area */ |
| 1192 | ha = (scsi_qla_host_t *)host->hostdata; |
| 1193 | memset(ha, 0, sizeof(scsi_qla_host_t)); |
| 1194 | |
| 1195 | ha->pdev = pdev; |
| 1196 | ha->host = host; |
| 1197 | ha->host_no = host->host_no; |
| 1198 | ha->brd_info = brd_info; |
| 1199 | sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no); |
| 1200 | |
| 1201 | /* Configure PCI I/O space */ |
| 1202 | ret = qla2x00_iospace_config(ha); |
| 1203 | if (ret != 0) { |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1204 | goto probe_alloc_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | } |
| 1206 | |
| 1207 | /* Sanitize the information from PCI BIOS. */ |
| 1208 | host->irq = pdev->irq; |
| 1209 | |
| 1210 | qla_printk(KERN_INFO, ha, |
| 1211 | "Found an %s, irq %d, iobase 0x%p\n", ha->brd_info->isp_name, |
| 1212 | host->irq, ha->iobase); |
| 1213 | |
| 1214 | spin_lock_init(&ha->hardware_lock); |
| 1215 | |
| 1216 | /* 4.23 Initialize /proc/scsi/qla2x00 counters */ |
| 1217 | ha->actthreads = 0; |
| 1218 | ha->qthreads = 0; |
| 1219 | ha->total_isr_cnt = 0; |
| 1220 | ha->total_isp_aborts = 0; |
| 1221 | ha->total_lip_cnt = 0; |
| 1222 | ha->total_dev_errs = 0; |
| 1223 | ha->total_ios = 0; |
| 1224 | ha->total_bytes = 0; |
| 1225 | |
| 1226 | ha->prev_topology = 0; |
| 1227 | ha->ports = MAX_BUSES; |
| 1228 | |
| 1229 | if (IS_QLA2100(ha)) { |
| 1230 | ha->max_targets = MAX_TARGETS_2100; |
| 1231 | ha->mbx_count = MAILBOX_REGISTER_COUNT_2100; |
| 1232 | ha->request_q_length = REQUEST_ENTRY_CNT_2100; |
| 1233 | ha->response_q_length = RESPONSE_ENTRY_CNT_2100; |
| 1234 | ha->last_loop_id = SNS_LAST_LOOP_ID_2100; |
| 1235 | host->sg_tablesize = 32; |
| 1236 | } else if (IS_QLA2200(ha)) { |
| 1237 | ha->max_targets = MAX_TARGETS_2200; |
| 1238 | ha->mbx_count = MAILBOX_REGISTER_COUNT; |
| 1239 | ha->request_q_length = REQUEST_ENTRY_CNT_2200; |
| 1240 | ha->response_q_length = RESPONSE_ENTRY_CNT_2100; |
| 1241 | ha->last_loop_id = SNS_LAST_LOOP_ID_2100; |
| 1242 | } else /*if (IS_QLA2300(ha))*/ { |
| 1243 | ha->max_targets = MAX_TARGETS_2200; |
| 1244 | ha->mbx_count = MAILBOX_REGISTER_COUNT; |
| 1245 | ha->request_q_length = REQUEST_ENTRY_CNT_2200; |
| 1246 | ha->response_q_length = RESPONSE_ENTRY_CNT_2300; |
| 1247 | ha->last_loop_id = SNS_LAST_LOOP_ID_2300; |
| 1248 | } |
| 1249 | host->can_queue = ha->request_q_length + 128; |
| 1250 | |
| 1251 | /* load the F/W, read paramaters, and init the H/W */ |
| 1252 | ha->instance = num_hosts; |
| 1253 | |
| 1254 | init_MUTEX(&ha->mbx_cmd_sem); |
| 1255 | init_MUTEX_LOCKED(&ha->mbx_intr_sem); |
| 1256 | |
| 1257 | INIT_LIST_HEAD(&ha->list); |
| 1258 | INIT_LIST_HEAD(&ha->fcports); |
| 1259 | INIT_LIST_HEAD(&ha->rscn_fcports); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1260 | |
| 1261 | /* |
| 1262 | * These locks are used to prevent more than one CPU |
| 1263 | * from modifying the queue at the same time. The |
| 1264 | * higher level "host_lock" will reduce most |
| 1265 | * contention for these locks. |
| 1266 | */ |
| 1267 | spin_lock_init(&ha->mbx_reg_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | |
| 1269 | ha->dpc_pid = -1; |
| 1270 | init_completion(&ha->dpc_inited); |
| 1271 | init_completion(&ha->dpc_exited); |
| 1272 | |
| 1273 | qla2x00_config_dma_addressing(ha); |
| 1274 | if (qla2x00_mem_alloc(ha)) { |
| 1275 | qla_printk(KERN_WARNING, ha, |
| 1276 | "[ERROR] Failed to allocate memory for adapter\n"); |
| 1277 | |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1278 | goto probe_alloc_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1279 | } |
| 1280 | |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1281 | pci_set_drvdata(pdev, ha); |
| 1282 | host->this_id = 255; |
| 1283 | host->cmd_per_lun = 3; |
| 1284 | host->unique_id = ha->instance; |
| 1285 | host->max_cmd_len = MAX_CMDSZ; |
| 1286 | host->max_channel = ha->ports - 1; |
| 1287 | host->max_id = ha->max_targets; |
| 1288 | host->max_lun = ha->max_luns; |
| 1289 | host->transportt = qla2xxx_transport_template; |
| 1290 | if (scsi_add_host(host, &pdev->dev)) |
| 1291 | goto probe_alloc_failed; |
| 1292 | |
| 1293 | qla2x00_alloc_sysfs_attr(ha); |
| 1294 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | if (qla2x00_initialize_adapter(ha) && |
| 1296 | !(ha->device_flags & DFLG_NO_CABLE)) { |
| 1297 | |
| 1298 | qla_printk(KERN_WARNING, ha, |
| 1299 | "Failed to initialize adapter\n"); |
| 1300 | |
| 1301 | DEBUG2(printk("scsi(%ld): Failed to initialize adapter - " |
| 1302 | "Adapter flags %x.\n", |
| 1303 | ha->host_no, ha->device_flags)); |
| 1304 | |
| 1305 | goto probe_failed; |
| 1306 | } |
| 1307 | |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1308 | qla2x00_init_host_attr(ha); |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 1309 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1310 | /* |
| 1311 | * Startup the kernel thread for this host adapter |
| 1312 | */ |
| 1313 | ha->dpc_should_die = 0; |
| 1314 | ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0); |
| 1315 | if (ha->dpc_pid < 0) { |
| 1316 | qla_printk(KERN_WARNING, ha, |
| 1317 | "Unable to start DPC thread!\n"); |
| 1318 | |
| 1319 | goto probe_failed; |
| 1320 | } |
| 1321 | wait_for_completion(&ha->dpc_inited); |
| 1322 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1323 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) |
| 1324 | ret = request_irq(host->irq, qla2100_intr_handler, |
| 1325 | SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha); |
| 1326 | else |
| 1327 | ret = request_irq(host->irq, qla2300_intr_handler, |
| 1328 | SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha); |
| 1329 | if (ret != 0) { |
| 1330 | qla_printk(KERN_WARNING, ha, |
| 1331 | "Failed to reserve interrupt %d already in use.\n", |
| 1332 | host->irq); |
| 1333 | goto probe_failed; |
| 1334 | } |
| 1335 | |
| 1336 | /* Initialized the timer */ |
| 1337 | qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL); |
| 1338 | |
| 1339 | DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n", |
| 1340 | ha->host_no, ha)); |
| 1341 | |
| 1342 | reg = ha->iobase; |
| 1343 | |
| 1344 | /* Disable ISP interrupts. */ |
| 1345 | qla2x00_disable_intrs(ha); |
| 1346 | |
| 1347 | /* Ensure mailbox registers are free. */ |
| 1348 | spin_lock_irqsave(&ha->hardware_lock, flags); |
| 1349 | WRT_REG_WORD(®->semaphore, 0); |
| 1350 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); |
| 1351 | WRT_REG_WORD(®->hccr, HCCR_CLR_HOST_INT); |
| 1352 | |
| 1353 | /* Enable proper parity */ |
| 1354 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) { |
| 1355 | if (IS_QLA2300(ha)) |
| 1356 | /* SRAM parity */ |
| 1357 | WRT_REG_WORD(®->hccr, (HCCR_ENABLE_PARITY + 0x1)); |
| 1358 | else |
| 1359 | /* SRAM, Instruction RAM and GP RAM parity */ |
| 1360 | WRT_REG_WORD(®->hccr, (HCCR_ENABLE_PARITY + 0x7)); |
| 1361 | } |
| 1362 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| 1363 | |
| 1364 | /* Enable chip interrupts. */ |
| 1365 | qla2x00_enable_intrs(ha); |
| 1366 | |
| 1367 | /* v2.19.5b6 */ |
| 1368 | /* |
| 1369 | * Wait around max loop_reset_delay secs for the devices to come |
| 1370 | * on-line. We don't want Linux scanning before we are ready. |
| 1371 | * |
| 1372 | */ |
| 1373 | for (wait_switch = jiffies + (ha->loop_reset_delay * HZ); |
| 1374 | time_before(jiffies,wait_switch) && |
| 1375 | !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES)) |
| 1376 | && (ha->device_flags & SWITCH_FOUND) ;) { |
| 1377 | |
| 1378 | qla2x00_check_fabric_devices(ha); |
| 1379 | |
| 1380 | msleep(10); |
| 1381 | } |
| 1382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | ha->flags.init_done = 1; |
| 1384 | num_hosts++; |
| 1385 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1386 | qla_printk(KERN_INFO, ha, "\n" |
| 1387 | " QLogic Fibre Channel HBA Driver: %s\n" |
| 1388 | " QLogic %s - %s\n" |
| 1389 | " %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str, |
| 1390 | ha->model_number, ha->model_desc ? ha->model_desc: "", |
| 1391 | ha->brd_info->isp_name, qla2x00_get_pci_info_str(ha, pci_info), |
| 1392 | pci_name(ha->pdev), ha->flags.enable_64bit_addressing ? '+': '-', |
| 1393 | ha->host_no, qla2x00_get_fw_version_str(ha, fw_str)); |
| 1394 | |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1395 | /* Go with fc_rport registration. */ |
| 1396 | list_for_each_entry(fcport, &ha->fcports, list) |
| 1397 | qla2x00_reg_remote_port(ha, fcport); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1398 | |
| 1399 | return 0; |
| 1400 | |
| 1401 | probe_failed: |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 1402 | fc_remove_host(ha->host); |
| 1403 | |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1404 | scsi_remove_host(host); |
| 1405 | |
| 1406 | probe_alloc_failed: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | qla2x00_free_device(ha); |
| 1408 | |
| 1409 | scsi_host_put(host); |
| 1410 | |
| 1411 | probe_disable_device: |
| 1412 | pci_disable_device(pdev); |
| 1413 | |
| 1414 | return -1; |
| 1415 | } |
| 1416 | EXPORT_SYMBOL_GPL(qla2x00_probe_one); |
| 1417 | |
| 1418 | void qla2x00_remove_one(struct pci_dev *pdev) |
| 1419 | { |
| 1420 | scsi_qla_host_t *ha; |
| 1421 | |
| 1422 | ha = pci_get_drvdata(pdev); |
| 1423 | |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1424 | qla2x00_free_sysfs_attr(ha); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1425 | |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 1426 | fc_remove_host(ha->host); |
| 1427 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | scsi_remove_host(ha->host); |
| 1429 | |
| 1430 | qla2x00_free_device(ha); |
| 1431 | |
| 1432 | scsi_host_put(ha->host); |
| 1433 | |
| 1434 | pci_set_drvdata(pdev, NULL); |
| 1435 | } |
| 1436 | EXPORT_SYMBOL_GPL(qla2x00_remove_one); |
| 1437 | |
| 1438 | static void |
| 1439 | qla2x00_free_device(scsi_qla_host_t *ha) |
| 1440 | { |
| 1441 | int ret; |
| 1442 | |
| 1443 | /* Abort any outstanding IO descriptors. */ |
| 1444 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) |
| 1445 | qla2x00_cancel_io_descriptors(ha); |
| 1446 | |
| 1447 | /* turn-off interrupts on the card */ |
| 1448 | if (ha->interrupts_on) |
| 1449 | qla2x00_disable_intrs(ha); |
| 1450 | |
| 1451 | /* Disable timer */ |
| 1452 | if (ha->timer_active) |
| 1453 | qla2x00_stop_timer(ha); |
| 1454 | |
| 1455 | /* Kill the kernel thread for this host */ |
| 1456 | if (ha->dpc_pid >= 0) { |
| 1457 | ha->dpc_should_die = 1; |
| 1458 | wmb(); |
| 1459 | ret = kill_proc(ha->dpc_pid, SIGHUP, 1); |
| 1460 | if (ret) { |
| 1461 | qla_printk(KERN_ERR, ha, |
| 1462 | "Unable to signal DPC thread -- (%d)\n", ret); |
| 1463 | |
| 1464 | /* TODO: SOMETHING MORE??? */ |
| 1465 | } else { |
| 1466 | wait_for_completion(&ha->dpc_exited); |
| 1467 | } |
| 1468 | } |
| 1469 | |
| 1470 | qla2x00_mem_free(ha); |
| 1471 | |
| 1472 | |
| 1473 | ha->flags.online = 0; |
| 1474 | |
| 1475 | /* Detach interrupts */ |
| 1476 | if (ha->pdev->irq) |
| 1477 | free_irq(ha->pdev->irq, ha); |
| 1478 | |
| 1479 | /* release io space registers */ |
| 1480 | if (ha->iobase) |
| 1481 | iounmap(ha->iobase); |
| 1482 | pci_release_regions(ha->pdev); |
| 1483 | |
| 1484 | pci_disable_device(ha->pdev); |
| 1485 | } |
| 1486 | |
| 1487 | |
| 1488 | /* |
| 1489 | * The following support functions are adopted to handle |
| 1490 | * the re-entrant qla2x00_proc_info correctly. |
| 1491 | */ |
| 1492 | static void |
| 1493 | copy_mem_info(struct info_str *info, char *data, int len) |
| 1494 | { |
| 1495 | if (info->pos + len > info->offset + info->length) |
| 1496 | len = info->offset + info->length - info->pos; |
| 1497 | |
| 1498 | if (info->pos + len < info->offset) { |
| 1499 | info->pos += len; |
| 1500 | return; |
| 1501 | } |
| 1502 | |
| 1503 | if (info->pos < info->offset) { |
| 1504 | off_t partial; |
| 1505 | |
| 1506 | partial = info->offset - info->pos; |
| 1507 | data += partial; |
| 1508 | info->pos += partial; |
| 1509 | len -= partial; |
| 1510 | } |
| 1511 | |
| 1512 | if (len > 0) { |
| 1513 | memcpy(info->buffer, data, len); |
| 1514 | info->pos += len; |
| 1515 | info->buffer += len; |
| 1516 | } |
| 1517 | } |
| 1518 | |
| 1519 | static int |
| 1520 | copy_info(struct info_str *info, char *fmt, ...) |
| 1521 | { |
| 1522 | va_list args; |
| 1523 | char buf[256]; |
| 1524 | int len; |
| 1525 | |
| 1526 | va_start(args, fmt); |
| 1527 | len = vsprintf(buf, fmt, args); |
| 1528 | va_end(args); |
| 1529 | |
| 1530 | copy_mem_info(info, buf, len); |
| 1531 | |
| 1532 | return (len); |
| 1533 | } |
| 1534 | |
| 1535 | /************************************************************************* |
| 1536 | * qla2x00_proc_info |
| 1537 | * |
| 1538 | * Description: |
| 1539 | * Return information to handle /proc support for the driver. |
| 1540 | * |
| 1541 | * inout : decides the direction of the dataflow and the meaning of the |
| 1542 | * variables |
| 1543 | * buffer: If inout==0 data is being written to it else read from it |
| 1544 | * (ptr to a page buffer) |
| 1545 | * *start: If inout==0 start of the valid data in the buffer |
| 1546 | * offset: If inout==0 starting offset from the beginning of all |
| 1547 | * possible data to return. |
| 1548 | * length: If inout==0 max number of bytes to be written into the buffer |
| 1549 | * else number of bytes in "buffer" |
| 1550 | * Returns: |
| 1551 | * < 0: error. errno value. |
| 1552 | * >= 0: sizeof data returned. |
| 1553 | *************************************************************************/ |
| 1554 | int |
| 1555 | qla2x00_proc_info(struct Scsi_Host *shost, char *buffer, |
| 1556 | char **start, off_t offset, int length, int inout) |
| 1557 | { |
| 1558 | struct info_str info; |
| 1559 | int retval = -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1560 | uint32_t tmp_sn; |
| 1561 | uint32_t *flags; |
| 1562 | uint8_t *loop_state; |
| 1563 | scsi_qla_host_t *ha; |
| 1564 | char fw_info[30]; |
| 1565 | |
| 1566 | DEBUG3(printk(KERN_INFO |
| 1567 | "Entering proc_info buff_in=%p, offset=0x%lx, length=0x%x\n", |
| 1568 | buffer, offset, length);) |
| 1569 | |
| 1570 | ha = (scsi_qla_host_t *) shost->hostdata; |
| 1571 | |
| 1572 | if (inout) { |
| 1573 | /* Has data been written to the file? */ |
| 1574 | DEBUG3(printk( |
| 1575 | "%s: has data been written to the file. \n", |
| 1576 | __func__);) |
| 1577 | |
| 1578 | return -ENOSYS; |
| 1579 | } |
| 1580 | |
| 1581 | if (start) { |
| 1582 | *start = buffer; |
| 1583 | } |
| 1584 | |
| 1585 | info.buffer = buffer; |
| 1586 | info.length = length; |
| 1587 | info.offset = offset; |
| 1588 | info.pos = 0; |
| 1589 | |
| 1590 | /* start building the print buffer */ |
| 1591 | copy_info(&info, |
| 1592 | "QLogic PCI to Fibre Channel Host Adapter for %s:\n" |
| 1593 | " Firmware version %s, ", |
| 1594 | ha->model_number, qla2x00_get_fw_version_str(ha, fw_info)); |
| 1595 | |
| 1596 | copy_info(&info, "Driver version %s\n", qla2x00_version_str); |
| 1597 | |
| 1598 | tmp_sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | |
| 1599 | ha->serial1; |
| 1600 | copy_info(&info, "ISP: %s, Serial# %c%05d\n", |
| 1601 | ha->brd_info->isp_name, ('A' + tmp_sn/100000), (tmp_sn%100000)); |
| 1602 | |
| 1603 | copy_info(&info, |
| 1604 | "Request Queue = 0x%llx, Response Queue = 0x%llx\n", |
| 1605 | (unsigned long long)ha->request_dma, |
| 1606 | (unsigned long long)ha->response_dma); |
| 1607 | |
| 1608 | copy_info(&info, |
| 1609 | "Request Queue count = %d, Response Queue count = %d\n", |
| 1610 | ha->request_q_length, ha->response_q_length); |
| 1611 | |
| 1612 | copy_info(&info, |
| 1613 | "Total number of active commands = %ld\n", |
| 1614 | ha->actthreads); |
| 1615 | |
| 1616 | copy_info(&info, |
| 1617 | "Total number of interrupts = %ld\n", |
| 1618 | (long)ha->total_isr_cnt); |
| 1619 | |
| 1620 | copy_info(&info, |
| 1621 | " Device queue depth = 0x%x\n", |
| 1622 | (ql2xmaxqdepth == 0) ? 16 : ql2xmaxqdepth); |
| 1623 | |
| 1624 | copy_info(&info, |
| 1625 | "Number of free request entries = %d\n", ha->req_q_cnt); |
| 1626 | |
| 1627 | copy_info(&info, |
| 1628 | "Number of mailbox timeouts = %ld\n", ha->total_mbx_timeout); |
| 1629 | |
| 1630 | copy_info(&info, |
| 1631 | "Number of ISP aborts = %ld\n", ha->total_isp_aborts); |
| 1632 | |
| 1633 | copy_info(&info, |
| 1634 | "Number of loop resyncs = %ld\n", ha->total_loop_resync); |
| 1635 | |
| 1636 | copy_info(&info, |
| 1637 | "Number of retries for empty slots = %ld\n", |
| 1638 | qla2x00_stats.outarray_full); |
| 1639 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | flags = (uint32_t *) &ha->flags; |
| 1641 | |
| 1642 | if (atomic_read(&ha->loop_state) == LOOP_DOWN) { |
| 1643 | loop_state = "DOWN"; |
| 1644 | } else if (atomic_read(&ha->loop_state) == LOOP_UP) { |
| 1645 | loop_state = "UP"; |
| 1646 | } else if (atomic_read(&ha->loop_state) == LOOP_READY) { |
| 1647 | loop_state = "READY"; |
| 1648 | } else if (atomic_read(&ha->loop_state) == LOOP_TIMEOUT) { |
| 1649 | loop_state = "TIMEOUT"; |
| 1650 | } else if (atomic_read(&ha->loop_state) == LOOP_UPDATE) { |
| 1651 | loop_state = "UPDATE"; |
| 1652 | } else { |
| 1653 | loop_state = "UNKNOWN"; |
| 1654 | } |
| 1655 | |
| 1656 | copy_info(&info, |
| 1657 | "Host adapter:loop state = <%s>, flags = 0x%lx\n", |
| 1658 | loop_state , *flags); |
| 1659 | |
| 1660 | copy_info(&info, "Dpc flags = 0x%lx\n", ha->dpc_flags); |
| 1661 | |
| 1662 | copy_info(&info, "MBX flags = 0x%x\n", ha->mbx_flags); |
| 1663 | |
| 1664 | copy_info(&info, "Link down Timeout = %3.3d\n", |
| 1665 | ha->link_down_timeout); |
| 1666 | |
| 1667 | copy_info(&info, "Port down retry = %3.3d\n", |
| 1668 | ha->port_down_retry_count); |
| 1669 | |
| 1670 | copy_info(&info, "Login retry count = %3.3d\n", |
| 1671 | ha->login_retry_count); |
| 1672 | |
| 1673 | copy_info(&info, |
| 1674 | "Commands retried with dropped frame(s) = %d\n", |
| 1675 | ha->dropped_frame_error_cnt); |
| 1676 | |
| 1677 | copy_info(&info, |
| 1678 | "Product ID = %04x %04x %04x %04x\n", ha->product_id[0], |
| 1679 | ha->product_id[1], ha->product_id[2], ha->product_id[3]); |
| 1680 | |
| 1681 | copy_info(&info, "\n"); |
| 1682 | |
| 1683 | /* 2.25 node/port display to proc */ |
| 1684 | /* Display the node name for adapter */ |
| 1685 | copy_info(&info, "\nSCSI Device Information:\n"); |
| 1686 | copy_info(&info, |
| 1687 | "scsi-qla%d-adapter-node=" |
| 1688 | "%02x%02x%02x%02x%02x%02x%02x%02x;\n", |
| 1689 | (int)ha->instance, |
| 1690 | ha->init_cb->node_name[0], |
| 1691 | ha->init_cb->node_name[1], |
| 1692 | ha->init_cb->node_name[2], |
| 1693 | ha->init_cb->node_name[3], |
| 1694 | ha->init_cb->node_name[4], |
| 1695 | ha->init_cb->node_name[5], |
| 1696 | ha->init_cb->node_name[6], |
| 1697 | ha->init_cb->node_name[7]); |
| 1698 | |
| 1699 | /* display the port name for adapter */ |
| 1700 | copy_info(&info, |
| 1701 | "scsi-qla%d-adapter-port=" |
| 1702 | "%02x%02x%02x%02x%02x%02x%02x%02x;\n", |
| 1703 | (int)ha->instance, |
| 1704 | ha->init_cb->port_name[0], |
| 1705 | ha->init_cb->port_name[1], |
| 1706 | ha->init_cb->port_name[2], |
| 1707 | ha->init_cb->port_name[3], |
| 1708 | ha->init_cb->port_name[4], |
| 1709 | ha->init_cb->port_name[5], |
| 1710 | ha->init_cb->port_name[6], |
| 1711 | ha->init_cb->port_name[7]); |
| 1712 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | retval = info.pos > info.offset ? info.pos - info.offset : 0; |
| 1714 | |
| 1715 | DEBUG3(printk(KERN_INFO |
| 1716 | "Exiting proc_info: info.pos=%d, offset=0x%lx, " |
| 1717 | "length=0x%x\n", info.pos, offset, length);) |
| 1718 | |
| 1719 | return (retval); |
| 1720 | } |
| 1721 | |
| 1722 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1723 | * qla2x00_mark_device_lost Updates fcport state when device goes offline. |
| 1724 | * |
| 1725 | * Input: ha = adapter block pointer. fcport = port structure pointer. |
| 1726 | * |
| 1727 | * Return: None. |
| 1728 | * |
| 1729 | * Context: |
| 1730 | */ |
| 1731 | void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport, |
| 1732 | int do_login) |
| 1733 | { |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1734 | if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport) |
| 1735 | fc_remote_port_block(fcport->rport); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | /* |
| 1737 | * We may need to retry the login, so don't change the state of the |
| 1738 | * port but do the retries. |
| 1739 | */ |
| 1740 | if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD) |
| 1741 | atomic_set(&fcport->state, FCS_DEVICE_LOST); |
| 1742 | |
| 1743 | if (!do_login) |
| 1744 | return; |
| 1745 | |
| 1746 | if (fcport->login_retry == 0) { |
| 1747 | fcport->login_retry = ha->login_retry_count; |
| 1748 | set_bit(RELOGIN_NEEDED, &ha->dpc_flags); |
| 1749 | |
| 1750 | DEBUG(printk("scsi(%ld): Port login retry: " |
| 1751 | "%02x%02x%02x%02x%02x%02x%02x%02x, " |
| 1752 | "id = 0x%04x retry cnt=%d\n", |
| 1753 | ha->host_no, |
| 1754 | fcport->port_name[0], |
| 1755 | fcport->port_name[1], |
| 1756 | fcport->port_name[2], |
| 1757 | fcport->port_name[3], |
| 1758 | fcport->port_name[4], |
| 1759 | fcport->port_name[5], |
| 1760 | fcport->port_name[6], |
| 1761 | fcport->port_name[7], |
| 1762 | fcport->loop_id, |
| 1763 | fcport->login_retry)); |
| 1764 | } |
| 1765 | } |
| 1766 | |
| 1767 | /* |
| 1768 | * qla2x00_mark_all_devices_lost |
| 1769 | * Updates fcport state when device goes offline. |
| 1770 | * |
| 1771 | * Input: |
| 1772 | * ha = adapter block pointer. |
| 1773 | * fcport = port structure pointer. |
| 1774 | * |
| 1775 | * Return: |
| 1776 | * None. |
| 1777 | * |
| 1778 | * Context: |
| 1779 | */ |
| 1780 | void |
| 1781 | qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha) |
| 1782 | { |
| 1783 | fc_port_t *fcport; |
| 1784 | |
| 1785 | list_for_each_entry(fcport, &ha->fcports, list) { |
| 1786 | if (fcport->port_type != FCT_TARGET) |
| 1787 | continue; |
| 1788 | |
| 1789 | /* |
| 1790 | * No point in marking the device as lost, if the device is |
| 1791 | * already DEAD. |
| 1792 | */ |
| 1793 | if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD) |
| 1794 | continue; |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 1795 | if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport) |
| 1796 | fc_remote_port_block(fcport->rport); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1797 | atomic_set(&fcport->state, FCS_DEVICE_LOST); |
| 1798 | } |
| 1799 | } |
| 1800 | |
| 1801 | /* |
| 1802 | * qla2x00_mem_alloc |
| 1803 | * Allocates adapter memory. |
| 1804 | * |
| 1805 | * Returns: |
| 1806 | * 0 = success. |
| 1807 | * 1 = failure. |
| 1808 | */ |
| 1809 | static uint8_t |
| 1810 | qla2x00_mem_alloc(scsi_qla_host_t *ha) |
| 1811 | { |
| 1812 | char name[16]; |
| 1813 | uint8_t status = 1; |
| 1814 | int retry= 10; |
| 1815 | |
| 1816 | do { |
| 1817 | /* |
| 1818 | * This will loop only once if everything goes well, else some |
| 1819 | * number of retries will be performed to get around a kernel |
| 1820 | * bug where available mem is not allocated until after a |
| 1821 | * little delay and a retry. |
| 1822 | */ |
| 1823 | ha->request_ring = dma_alloc_coherent(&ha->pdev->dev, |
| 1824 | (ha->request_q_length + 1) * sizeof(request_t), |
| 1825 | &ha->request_dma, GFP_KERNEL); |
| 1826 | if (ha->request_ring == NULL) { |
| 1827 | qla_printk(KERN_WARNING, ha, |
| 1828 | "Memory Allocation failed - request_ring\n"); |
| 1829 | |
| 1830 | qla2x00_mem_free(ha); |
| 1831 | msleep(100); |
| 1832 | |
| 1833 | continue; |
| 1834 | } |
| 1835 | |
| 1836 | ha->response_ring = dma_alloc_coherent(&ha->pdev->dev, |
| 1837 | (ha->response_q_length + 1) * sizeof(response_t), |
| 1838 | &ha->response_dma, GFP_KERNEL); |
| 1839 | if (ha->response_ring == NULL) { |
| 1840 | qla_printk(KERN_WARNING, ha, |
| 1841 | "Memory Allocation failed - response_ring\n"); |
| 1842 | |
| 1843 | qla2x00_mem_free(ha); |
| 1844 | msleep(100); |
| 1845 | |
| 1846 | continue; |
| 1847 | } |
| 1848 | |
| 1849 | ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE, |
| 1850 | &ha->gid_list_dma, GFP_KERNEL); |
| 1851 | if (ha->gid_list == NULL) { |
| 1852 | qla_printk(KERN_WARNING, ha, |
| 1853 | "Memory Allocation failed - gid_list\n"); |
| 1854 | |
| 1855 | qla2x00_mem_free(ha); |
| 1856 | msleep(100); |
| 1857 | |
| 1858 | continue; |
| 1859 | } |
| 1860 | |
| 1861 | ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev, |
| 1862 | sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL); |
| 1863 | if (ha->rlc_rsp == NULL) { |
| 1864 | qla_printk(KERN_WARNING, ha, |
| 1865 | "Memory Allocation failed - rlc"); |
| 1866 | |
| 1867 | qla2x00_mem_free(ha); |
| 1868 | msleep(100); |
| 1869 | |
| 1870 | continue; |
| 1871 | } |
| 1872 | |
| 1873 | snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no); |
| 1874 | ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev, |
| 1875 | DMA_POOL_SIZE, 8, 0); |
| 1876 | if (ha->s_dma_pool == NULL) { |
| 1877 | qla_printk(KERN_WARNING, ha, |
| 1878 | "Memory Allocation failed - s_dma_pool\n"); |
| 1879 | |
| 1880 | qla2x00_mem_free(ha); |
| 1881 | msleep(100); |
| 1882 | |
| 1883 | continue; |
| 1884 | } |
| 1885 | |
| 1886 | /* get consistent memory allocated for init control block */ |
| 1887 | ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, |
| 1888 | &ha->init_cb_dma); |
| 1889 | if (ha->init_cb == NULL) { |
| 1890 | qla_printk(KERN_WARNING, ha, |
| 1891 | "Memory Allocation failed - init_cb\n"); |
| 1892 | |
| 1893 | qla2x00_mem_free(ha); |
| 1894 | msleep(100); |
| 1895 | |
| 1896 | continue; |
| 1897 | } |
| 1898 | memset(ha->init_cb, 0, sizeof(init_cb_t)); |
| 1899 | |
| 1900 | /* Get consistent memory allocated for Get Port Database cmd */ |
| 1901 | ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, |
| 1902 | &ha->iodesc_pd_dma); |
| 1903 | if (ha->iodesc_pd == NULL) { |
| 1904 | /* error */ |
| 1905 | qla_printk(KERN_WARNING, ha, |
| 1906 | "Memory Allocation failed - iodesc_pd\n"); |
| 1907 | |
| 1908 | qla2x00_mem_free(ha); |
| 1909 | msleep(100); |
| 1910 | |
| 1911 | continue; |
| 1912 | } |
| 1913 | memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE); |
| 1914 | |
| 1915 | /* Allocate ioctl related memory. */ |
| 1916 | if (qla2x00_alloc_ioctl_mem(ha)) { |
| 1917 | qla_printk(KERN_WARNING, ha, |
| 1918 | "Memory Allocation failed - ioctl_mem\n"); |
| 1919 | |
| 1920 | qla2x00_mem_free(ha); |
| 1921 | msleep(100); |
| 1922 | |
| 1923 | continue; |
| 1924 | } |
| 1925 | |
| 1926 | if (qla2x00_allocate_sp_pool(ha)) { |
| 1927 | qla_printk(KERN_WARNING, ha, |
| 1928 | "Memory Allocation failed - " |
| 1929 | "qla2x00_allocate_sp_pool()\n"); |
| 1930 | |
| 1931 | qla2x00_mem_free(ha); |
| 1932 | msleep(100); |
| 1933 | |
| 1934 | continue; |
| 1935 | } |
| 1936 | |
| 1937 | /* Allocate memory for SNS commands */ |
| 1938 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) { |
| 1939 | /* Get consistent memory allocated for SNS commands */ |
| 1940 | ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev, |
| 1941 | sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, |
| 1942 | GFP_KERNEL); |
| 1943 | if (ha->sns_cmd == NULL) { |
| 1944 | /* error */ |
| 1945 | qla_printk(KERN_WARNING, ha, |
| 1946 | "Memory Allocation failed - sns_cmd\n"); |
| 1947 | |
| 1948 | qla2x00_mem_free(ha); |
| 1949 | msleep(100); |
| 1950 | |
| 1951 | continue; |
| 1952 | } |
| 1953 | memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt)); |
| 1954 | } else { |
| 1955 | /* Get consistent memory allocated for MS IOCB */ |
| 1956 | ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, |
| 1957 | &ha->ms_iocb_dma); |
| 1958 | if (ha->ms_iocb == NULL) { |
| 1959 | /* error */ |
| 1960 | qla_printk(KERN_WARNING, ha, |
| 1961 | "Memory Allocation failed - ms_iocb\n"); |
| 1962 | |
| 1963 | qla2x00_mem_free(ha); |
| 1964 | msleep(100); |
| 1965 | |
| 1966 | continue; |
| 1967 | } |
| 1968 | memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t)); |
| 1969 | |
| 1970 | /* |
| 1971 | * Get consistent memory allocated for CT SNS |
| 1972 | * commands |
| 1973 | */ |
| 1974 | ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev, |
| 1975 | sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, |
| 1976 | GFP_KERNEL); |
| 1977 | if (ha->ct_sns == NULL) { |
| 1978 | /* error */ |
| 1979 | qla_printk(KERN_WARNING, ha, |
| 1980 | "Memory Allocation failed - ct_sns\n"); |
| 1981 | |
| 1982 | qla2x00_mem_free(ha); |
| 1983 | msleep(100); |
| 1984 | |
| 1985 | continue; |
| 1986 | } |
| 1987 | memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt)); |
| 1988 | } |
| 1989 | |
| 1990 | /* Done all allocations without any error. */ |
| 1991 | status = 0; |
| 1992 | |
| 1993 | } while (retry-- && status != 0); |
| 1994 | |
| 1995 | if (status) { |
| 1996 | printk(KERN_WARNING |
| 1997 | "%s(): **** FAILED ****\n", __func__); |
| 1998 | } |
| 1999 | |
| 2000 | return(status); |
| 2001 | } |
| 2002 | |
| 2003 | /* |
| 2004 | * qla2x00_mem_free |
| 2005 | * Frees all adapter allocated memory. |
| 2006 | * |
| 2007 | * Input: |
| 2008 | * ha = adapter block pointer. |
| 2009 | */ |
| 2010 | static void |
| 2011 | qla2x00_mem_free(scsi_qla_host_t *ha) |
| 2012 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2013 | struct list_head *fcpl, *fcptemp; |
| 2014 | fc_port_t *fcport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2015 | unsigned long wtime;/* max wait time if mbx cmd is busy. */ |
| 2016 | |
| 2017 | if (ha == NULL) { |
| 2018 | /* error */ |
| 2019 | DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__)); |
| 2020 | return; |
| 2021 | } |
| 2022 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2023 | /* Make sure all other threads are stopped. */ |
| 2024 | wtime = 60 * HZ; |
| 2025 | while (ha->dpc_wait && wtime) { |
| 2026 | set_current_state(TASK_INTERRUPTIBLE); |
| 2027 | wtime = schedule_timeout(wtime); |
| 2028 | } |
| 2029 | |
| 2030 | /* free ioctl memory */ |
| 2031 | qla2x00_free_ioctl_mem(ha); |
| 2032 | |
| 2033 | /* free sp pool */ |
| 2034 | qla2x00_free_sp_pool(ha); |
| 2035 | |
| 2036 | if (ha->sns_cmd) |
| 2037 | dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt), |
| 2038 | ha->sns_cmd, ha->sns_cmd_dma); |
| 2039 | |
| 2040 | if (ha->ct_sns) |
| 2041 | dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt), |
| 2042 | ha->ct_sns, ha->ct_sns_dma); |
| 2043 | |
| 2044 | if (ha->ms_iocb) |
| 2045 | dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma); |
| 2046 | |
| 2047 | if (ha->iodesc_pd) |
| 2048 | dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma); |
| 2049 | |
| 2050 | if (ha->init_cb) |
| 2051 | dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma); |
| 2052 | |
| 2053 | if (ha->s_dma_pool) |
| 2054 | dma_pool_destroy(ha->s_dma_pool); |
| 2055 | |
| 2056 | if (ha->rlc_rsp) |
| 2057 | dma_free_coherent(&ha->pdev->dev, |
| 2058 | sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp, |
| 2059 | ha->rlc_rsp_dma); |
| 2060 | |
| 2061 | if (ha->gid_list) |
| 2062 | dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list, |
| 2063 | ha->gid_list_dma); |
| 2064 | |
| 2065 | if (ha->response_ring) |
| 2066 | dma_free_coherent(&ha->pdev->dev, |
| 2067 | (ha->response_q_length + 1) * sizeof(response_t), |
| 2068 | ha->response_ring, ha->response_dma); |
| 2069 | |
| 2070 | if (ha->request_ring) |
| 2071 | dma_free_coherent(&ha->pdev->dev, |
| 2072 | (ha->request_q_length + 1) * sizeof(request_t), |
| 2073 | ha->request_ring, ha->request_dma); |
| 2074 | |
| 2075 | ha->sns_cmd = NULL; |
| 2076 | ha->sns_cmd_dma = 0; |
| 2077 | ha->ct_sns = NULL; |
| 2078 | ha->ct_sns_dma = 0; |
| 2079 | ha->ms_iocb = NULL; |
| 2080 | ha->ms_iocb_dma = 0; |
| 2081 | ha->iodesc_pd = NULL; |
| 2082 | ha->iodesc_pd_dma = 0; |
| 2083 | ha->init_cb = NULL; |
| 2084 | ha->init_cb_dma = 0; |
| 2085 | |
| 2086 | ha->s_dma_pool = NULL; |
| 2087 | |
| 2088 | ha->rlc_rsp = NULL; |
| 2089 | ha->rlc_rsp_dma = 0; |
| 2090 | ha->gid_list = NULL; |
| 2091 | ha->gid_list_dma = 0; |
| 2092 | |
| 2093 | ha->response_ring = NULL; |
| 2094 | ha->response_dma = 0; |
| 2095 | ha->request_ring = NULL; |
| 2096 | ha->request_dma = 0; |
| 2097 | |
| 2098 | list_for_each_safe(fcpl, fcptemp, &ha->fcports) { |
| 2099 | fcport = list_entry(fcpl, fc_port_t, list); |
| 2100 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2101 | /* fc ports */ |
| 2102 | list_del_init(&fcport->list); |
| 2103 | kfree(fcport); |
| 2104 | } |
| 2105 | INIT_LIST_HEAD(&ha->fcports); |
| 2106 | |
| 2107 | if (ha->fw_dump) |
| 2108 | free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order); |
| 2109 | |
| 2110 | if (ha->fw_dump_buffer) |
| 2111 | vfree(ha->fw_dump_buffer); |
| 2112 | |
| 2113 | ha->fw_dump = NULL; |
| 2114 | ha->fw_dump_reading = 0; |
| 2115 | ha->fw_dump_buffer = NULL; |
| 2116 | } |
| 2117 | |
| 2118 | /* |
| 2119 | * qla2x00_allocate_sp_pool |
| 2120 | * This routine is called during initialization to allocate |
| 2121 | * memory for local srb_t. |
| 2122 | * |
| 2123 | * Input: |
| 2124 | * ha = adapter block pointer. |
| 2125 | * |
| 2126 | * Context: |
| 2127 | * Kernel context. |
| 2128 | * |
| 2129 | * Note: Sets the ref_count for non Null sp to one. |
| 2130 | */ |
| 2131 | static int |
| 2132 | qla2x00_allocate_sp_pool(scsi_qla_host_t *ha) |
| 2133 | { |
| 2134 | int rval; |
| 2135 | |
| 2136 | rval = QLA_SUCCESS; |
| 2137 | ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, |
| 2138 | mempool_free_slab, srb_cachep); |
| 2139 | if (ha->srb_mempool == NULL) { |
| 2140 | qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n"); |
| 2141 | rval = QLA_FUNCTION_FAILED; |
| 2142 | } |
| 2143 | return (rval); |
| 2144 | } |
| 2145 | |
| 2146 | /* |
| 2147 | * This routine frees all adapter allocated memory. |
| 2148 | * |
| 2149 | */ |
| 2150 | static void |
| 2151 | qla2x00_free_sp_pool( scsi_qla_host_t *ha) |
| 2152 | { |
| 2153 | if (ha->srb_mempool) { |
| 2154 | mempool_destroy(ha->srb_mempool); |
| 2155 | ha->srb_mempool = NULL; |
| 2156 | } |
| 2157 | } |
| 2158 | |
| 2159 | /************************************************************************** |
| 2160 | * qla2x00_do_dpc |
| 2161 | * This kernel thread is a task that is schedule by the interrupt handler |
| 2162 | * to perform the background processing for interrupts. |
| 2163 | * |
| 2164 | * Notes: |
| 2165 | * This task always run in the context of a kernel thread. It |
| 2166 | * is kick-off by the driver's detect code and starts up |
| 2167 | * up one per adapter. It immediately goes to sleep and waits for |
| 2168 | * some fibre event. When either the interrupt handler or |
| 2169 | * the timer routine detects a event it will one of the task |
| 2170 | * bits then wake us up. |
| 2171 | **************************************************************************/ |
| 2172 | static int |
| 2173 | qla2x00_do_dpc(void *data) |
| 2174 | { |
| 2175 | DECLARE_MUTEX_LOCKED(sem); |
| 2176 | scsi_qla_host_t *ha; |
| 2177 | fc_port_t *fcport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2178 | uint8_t status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | uint16_t next_loopid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2180 | |
| 2181 | ha = (scsi_qla_host_t *)data; |
| 2182 | |
| 2183 | lock_kernel(); |
| 2184 | |
| 2185 | daemonize("%s_dpc", ha->host_str); |
| 2186 | allow_signal(SIGHUP); |
| 2187 | |
| 2188 | ha->dpc_wait = &sem; |
| 2189 | |
| 2190 | set_user_nice(current, -20); |
| 2191 | |
| 2192 | unlock_kernel(); |
| 2193 | |
| 2194 | complete(&ha->dpc_inited); |
| 2195 | |
| 2196 | while (1) { |
| 2197 | DEBUG3(printk("qla2x00: DPC handler sleeping\n")); |
| 2198 | |
| 2199 | if (down_interruptible(&sem)) |
| 2200 | break; |
| 2201 | |
| 2202 | if (ha->dpc_should_die) |
| 2203 | break; |
| 2204 | |
| 2205 | DEBUG3(printk("qla2x00: DPC handler waking up\n")); |
| 2206 | |
| 2207 | /* Initialization not yet finished. Don't do anything yet. */ |
| 2208 | if (!ha->flags.init_done || ha->dpc_active) |
| 2209 | continue; |
| 2210 | |
| 2211 | DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no)); |
| 2212 | |
| 2213 | ha->dpc_active = 1; |
| 2214 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2215 | if (ha->flags.mbox_busy) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2216 | ha->dpc_active = 0; |
| 2217 | continue; |
| 2218 | } |
| 2219 | |
| 2220 | if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { |
| 2221 | |
| 2222 | DEBUG(printk("scsi(%ld): dpc: sched " |
| 2223 | "qla2x00_abort_isp ha = %p\n", |
| 2224 | ha->host_no, ha)); |
| 2225 | if (!(test_and_set_bit(ABORT_ISP_ACTIVE, |
| 2226 | &ha->dpc_flags))) { |
| 2227 | |
| 2228 | if (qla2x00_abort_isp(ha)) { |
| 2229 | /* failed. retry later */ |
| 2230 | set_bit(ISP_ABORT_NEEDED, |
| 2231 | &ha->dpc_flags); |
| 2232 | } |
| 2233 | clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); |
| 2234 | } |
| 2235 | DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n", |
| 2236 | ha->host_no)); |
| 2237 | } |
| 2238 | |
| 2239 | if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) && |
| 2240 | (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) { |
| 2241 | |
| 2242 | DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n", |
| 2243 | ha->host_no)); |
| 2244 | |
| 2245 | qla2x00_rst_aen(ha); |
| 2246 | clear_bit(RESET_ACTIVE, &ha->dpc_flags); |
| 2247 | } |
| 2248 | |
| 2249 | /* Retry each device up to login retry count */ |
| 2250 | if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) && |
| 2251 | !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) && |
| 2252 | atomic_read(&ha->loop_state) != LOOP_DOWN) { |
| 2253 | |
| 2254 | DEBUG(printk("scsi(%ld): qla2x00_port_login()\n", |
| 2255 | ha->host_no)); |
| 2256 | |
| 2257 | next_loopid = 0; |
| 2258 | list_for_each_entry(fcport, &ha->fcports, list) { |
| 2259 | if (fcport->port_type != FCT_TARGET) |
| 2260 | continue; |
| 2261 | |
| 2262 | /* |
| 2263 | * If the port is not ONLINE then try to login |
| 2264 | * to it if we haven't run out of retries. |
| 2265 | */ |
| 2266 | if (atomic_read(&fcport->state) != FCS_ONLINE && |
| 2267 | fcport->login_retry) { |
| 2268 | |
| 2269 | fcport->login_retry--; |
| 2270 | if (fcport->flags & FCF_FABRIC_DEVICE) { |
| 2271 | if (fcport->flags & |
| 2272 | FCF_TAPE_PRESENT) |
| 2273 | qla2x00_fabric_logout( |
| 2274 | ha, |
| 2275 | fcport->loop_id); |
| 2276 | status = qla2x00_fabric_login( |
| 2277 | ha, fcport, &next_loopid); |
| 2278 | } else |
| 2279 | status = |
| 2280 | qla2x00_local_device_login( |
| 2281 | ha, fcport->loop_id); |
| 2282 | |
| 2283 | if (status == QLA_SUCCESS) { |
| 2284 | fcport->old_loop_id = fcport->loop_id; |
| 2285 | |
| 2286 | DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n", |
| 2287 | ha->host_no, fcport->loop_id)); |
| 2288 | |
| 2289 | fcport->port_login_retry_count = |
| 2290 | ha->port_down_retry_count * PORT_RETRY_TIME; |
| 2291 | atomic_set(&fcport->state, FCS_ONLINE); |
| 2292 | atomic_set(&fcport->port_down_timer, |
| 2293 | ha->port_down_retry_count * PORT_RETRY_TIME); |
| 2294 | |
| 2295 | fcport->login_retry = 0; |
| 2296 | } else if (status == 1) { |
| 2297 | set_bit(RELOGIN_NEEDED, &ha->dpc_flags); |
| 2298 | /* retry the login again */ |
| 2299 | DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n", |
| 2300 | ha->host_no, |
| 2301 | fcport->login_retry, fcport->loop_id)); |
| 2302 | } else { |
| 2303 | fcport->login_retry = 0; |
| 2304 | } |
| 2305 | } |
| 2306 | if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) |
| 2307 | break; |
| 2308 | } |
| 2309 | DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n", |
| 2310 | ha->host_no)); |
| 2311 | } |
| 2312 | |
| 2313 | if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) && |
| 2314 | atomic_read(&ha->loop_state) != LOOP_DOWN) { |
| 2315 | |
| 2316 | clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags); |
| 2317 | DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n", |
| 2318 | ha->host_no)); |
| 2319 | |
| 2320 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); |
| 2321 | |
| 2322 | DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n", |
| 2323 | ha->host_no)); |
| 2324 | } |
| 2325 | |
| 2326 | if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { |
| 2327 | |
| 2328 | DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n", |
| 2329 | ha->host_no)); |
| 2330 | |
| 2331 | if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, |
| 2332 | &ha->dpc_flags))) { |
| 2333 | |
| 2334 | qla2x00_loop_resync(ha); |
| 2335 | |
| 2336 | clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags); |
| 2337 | } |
| 2338 | |
| 2339 | DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n", |
| 2340 | ha->host_no)); |
| 2341 | } |
| 2342 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2343 | if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) { |
| 2344 | |
| 2345 | DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n", |
| 2346 | ha->host_no)); |
| 2347 | |
| 2348 | qla2x00_rescan_fcports(ha); |
| 2349 | |
| 2350 | DEBUG(printk("scsi(%ld): Rescan flagged fcports..." |
| 2351 | "end.\n", |
| 2352 | ha->host_no)); |
| 2353 | } |
| 2354 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2355 | if (!ha->interrupts_on) |
| 2356 | qla2x00_enable_intrs(ha); |
| 2357 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2358 | ha->dpc_active = 0; |
| 2359 | } /* End of while(1) */ |
| 2360 | |
| 2361 | DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no)); |
| 2362 | |
| 2363 | /* |
| 2364 | * Make sure that nobody tries to wake us up again. |
| 2365 | */ |
| 2366 | ha->dpc_wait = NULL; |
| 2367 | ha->dpc_active = 0; |
| 2368 | |
| 2369 | complete_and_exit(&ha->dpc_exited, 0); |
| 2370 | } |
| 2371 | |
| 2372 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2373 | * qla2x00_rst_aen |
| 2374 | * Processes asynchronous reset. |
| 2375 | * |
| 2376 | * Input: |
| 2377 | * ha = adapter block pointer. |
| 2378 | */ |
| 2379 | static void |
| 2380 | qla2x00_rst_aen(scsi_qla_host_t *ha) |
| 2381 | { |
| 2382 | if (ha->flags.online && !ha->flags.reset_active && |
| 2383 | !atomic_read(&ha->loop_down_timer) && |
| 2384 | !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { |
| 2385 | do { |
| 2386 | clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); |
| 2387 | |
| 2388 | /* |
| 2389 | * Issue marker command only when we are going to start |
| 2390 | * the I/O. |
| 2391 | */ |
| 2392 | ha->marker_needed = 1; |
| 2393 | } while (!atomic_read(&ha->loop_down_timer) && |
| 2394 | (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags))); |
| 2395 | } |
| 2396 | } |
| 2397 | |
| 2398 | |
| 2399 | /* |
| 2400 | * This routine will allocate SP from the free queue |
| 2401 | * input: |
| 2402 | * scsi_qla_host_t * |
| 2403 | * output: |
| 2404 | * srb_t * or NULL |
| 2405 | */ |
| 2406 | static srb_t * |
| 2407 | qla2x00_get_new_sp(scsi_qla_host_t *ha) |
| 2408 | { |
| 2409 | srb_t *sp; |
| 2410 | |
| 2411 | sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); |
| 2412 | if (sp) |
| 2413 | atomic_set(&sp->ref_count, 1); |
| 2414 | return (sp); |
| 2415 | } |
| 2416 | |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 2417 | static void |
| 2418 | qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp) |
| 2419 | { |
| 2420 | struct scsi_cmnd *cmd = sp->cmd; |
| 2421 | |
| 2422 | if (sp->flags & SRB_DMA_VALID) { |
| 2423 | if (cmd->use_sg) { |
| 2424 | dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer, |
| 2425 | cmd->use_sg, cmd->sc_data_direction); |
| 2426 | } else if (cmd->request_bufflen) { |
| 2427 | dma_unmap_single(&ha->pdev->dev, sp->dma_handle, |
| 2428 | cmd->request_bufflen, cmd->sc_data_direction); |
| 2429 | } |
| 2430 | sp->flags &= ~SRB_DMA_VALID; |
| 2431 | } |
| 2432 | } |
| 2433 | |
| 2434 | void |
| 2435 | qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp) |
| 2436 | { |
| 2437 | struct scsi_cmnd *cmd = sp->cmd; |
| 2438 | |
| 2439 | qla2x00_sp_free_dma(ha, sp); |
| 2440 | |
| 2441 | CMD_SP(cmd) = NULL; |
| 2442 | mempool_free(sp, ha->srb_mempool); |
| 2443 | |
| 2444 | cmd->scsi_done(cmd); |
| 2445 | } |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 2446 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2447 | /************************************************************************** |
| 2448 | * qla2x00_timer |
| 2449 | * |
| 2450 | * Description: |
| 2451 | * One second timer |
| 2452 | * |
| 2453 | * Context: Interrupt |
| 2454 | ***************************************************************************/ |
| 2455 | static void |
| 2456 | qla2x00_timer(scsi_qla_host_t *ha) |
| 2457 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2458 | unsigned long cpu_flags = 0; |
| 2459 | fc_port_t *fcport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2460 | int start_dpc = 0; |
| 2461 | int index; |
| 2462 | srb_t *sp; |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 2463 | int t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2464 | |
| 2465 | /* |
| 2466 | * Ports - Port down timer. |
| 2467 | * |
| 2468 | * Whenever, a port is in the LOST state we start decrementing its port |
| 2469 | * down timer every second until it reaches zero. Once it reaches zero |
| 2470 | * the port it marked DEAD. |
| 2471 | */ |
| 2472 | t = 0; |
| 2473 | list_for_each_entry(fcport, &ha->fcports, list) { |
| 2474 | if (fcport->port_type != FCT_TARGET) |
| 2475 | continue; |
| 2476 | |
| 2477 | if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) { |
| 2478 | |
| 2479 | if (atomic_read(&fcport->port_down_timer) == 0) |
| 2480 | continue; |
| 2481 | |
| 2482 | if (atomic_dec_and_test(&fcport->port_down_timer) != 0) |
| 2483 | atomic_set(&fcport->state, FCS_DEVICE_DEAD); |
| 2484 | |
| 2485 | DEBUG(printk("scsi(%ld): fcport-%d - port retry count: " |
| 2486 | "%d remainning\n", |
| 2487 | ha->host_no, |
| 2488 | t, atomic_read(&fcport->port_down_timer))); |
| 2489 | } |
| 2490 | t++; |
| 2491 | } /* End of for fcport */ |
| 2492 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2493 | |
| 2494 | /* Loop down handler. */ |
| 2495 | if (atomic_read(&ha->loop_down_timer) > 0 && |
| 2496 | !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) { |
| 2497 | |
| 2498 | if (atomic_read(&ha->loop_down_timer) == |
| 2499 | ha->loop_down_abort_time) { |
| 2500 | |
| 2501 | DEBUG(printk("scsi(%ld): Loop Down - aborting the " |
| 2502 | "queues before time expire\n", |
| 2503 | ha->host_no)); |
| 2504 | |
| 2505 | if (!IS_QLA2100(ha) && ha->link_down_timeout) |
| 2506 | atomic_set(&ha->loop_state, LOOP_DEAD); |
| 2507 | |
| 2508 | /* Schedule an ISP abort to return any tape commands. */ |
| 2509 | spin_lock_irqsave(&ha->hardware_lock, cpu_flags); |
| 2510 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; |
| 2511 | index++) { |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 2512 | fc_port_t *sfcp; |
| 2513 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2514 | sp = ha->outstanding_cmds[index]; |
| 2515 | if (!sp) |
| 2516 | continue; |
| bdf7962 | 2005-04-17 15:06:53 -0500 | [diff] [blame^] | 2517 | sfcp = sp->fcport; |
| 2518 | if (!(sfcp->flags & FCF_TAPE_PRESENT)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2519 | continue; |
| 2520 | |
| 2521 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
| 2522 | break; |
| 2523 | } |
| 2524 | spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags); |
| 2525 | |
| 2526 | set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags); |
| 2527 | start_dpc++; |
| 2528 | } |
| 2529 | |
| 2530 | /* if the loop has been down for 4 minutes, reinit adapter */ |
| 2531 | if (atomic_dec_and_test(&ha->loop_down_timer) != 0) { |
| 2532 | DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - " |
| 2533 | "restarting queues.\n", |
| 2534 | ha->host_no)); |
| 2535 | |
| 2536 | set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags); |
| 2537 | start_dpc++; |
| 2538 | |
| 2539 | if (!(ha->device_flags & DFLG_NO_CABLE)) { |
| 2540 | DEBUG(printk("scsi(%ld): Loop down - " |
| 2541 | "aborting ISP.\n", |
| 2542 | ha->host_no)); |
| 2543 | qla_printk(KERN_WARNING, ha, |
| 2544 | "Loop down - aborting ISP.\n"); |
| 2545 | |
| 2546 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
| 2547 | } |
| 2548 | } |
| 2549 | DEBUG3(printk("scsi(%ld): Loop Down - seconds remainning %d\n", |
| 2550 | ha->host_no, |
| 2551 | atomic_read(&ha->loop_down_timer))); |
| 2552 | } |
| 2553 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2554 | /* Schedule the DPC routine if needed */ |
| 2555 | if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || |
| 2556 | test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || |
| 2557 | start_dpc || |
| 2558 | test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) || |
| f4f051e | 2005-04-17 15:02:26 -0500 | [diff] [blame] | 2559 | test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2560 | test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) && |
| 2561 | ha->dpc_wait && !ha->dpc_active) { |
| 2562 | |
| 2563 | up(ha->dpc_wait); |
| 2564 | } |
| 2565 | |
| 2566 | qla2x00_restart_timer(ha, WATCH_INTERVAL); |
| 2567 | } |
| 2568 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2569 | /* XXX(hch): crude hack to emulate a down_timeout() */ |
| 2570 | int |
| 2571 | qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout) |
| 2572 | { |
| 2573 | const unsigned int step = HZ/10; |
| 2574 | |
| 2575 | do { |
| 2576 | if (!down_trylock(sema)) |
| 2577 | return 0; |
| 2578 | set_current_state(TASK_INTERRUPTIBLE); |
| 2579 | if (schedule_timeout(step)) |
| 2580 | break; |
| 2581 | } while ((timeout -= step) > 0); |
| 2582 | |
| 2583 | return -ETIMEDOUT; |
| 2584 | } |
| 2585 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2586 | /** |
| 2587 | * qla2x00_module_init - Module initialization. |
| 2588 | **/ |
| 2589 | static int __init |
| 2590 | qla2x00_module_init(void) |
| 2591 | { |
| 2592 | /* Allocate cache for SRBs. */ |
| 2593 | sprintf(srb_cachep_name, "qla2xxx_srbs"); |
| 2594 | srb_cachep = kmem_cache_create(srb_cachep_name, sizeof(srb_t), 0, |
| 2595 | SLAB_HWCACHE_ALIGN, NULL, NULL); |
| 2596 | if (srb_cachep == NULL) { |
| 2597 | printk(KERN_ERR |
| 2598 | "qla2xxx: Unable to allocate SRB cache...Failing load!\n"); |
| 2599 | return -ENOMEM; |
| 2600 | } |
| 2601 | |
| 2602 | /* Derive version string. */ |
| 2603 | strcpy(qla2x00_version_str, QLA2XXX_VERSION); |
| 2604 | #if DEBUG_QLA2100 |
| 2605 | strcat(qla2x00_version_str, "-debug"); |
| 2606 | #endif |
| 8482e118 | 2005-04-17 15:04:54 -0500 | [diff] [blame] | 2607 | qla2xxx_transport_template = qla2x00_alloc_transport_tmpl(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2608 | if (!qla2xxx_transport_template) |
| 2609 | return -ENODEV; |
| 2610 | |
| 2611 | printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n"); |
| 2612 | return 0; |
| 2613 | } |
| 2614 | |
| 2615 | /** |
| 2616 | * qla2x00_module_exit - Module cleanup. |
| 2617 | **/ |
| 2618 | static void __exit |
| 2619 | qla2x00_module_exit(void) |
| 2620 | { |
| 2621 | /* Free SRBs cache. */ |
| 2622 | if (srb_cachep != NULL) { |
| 2623 | if (kmem_cache_destroy(srb_cachep) != 0) { |
| 2624 | printk(KERN_ERR |
| 2625 | "qla2xxx: Unable to free SRB cache...Memory pools " |
| 2626 | "still active?\n"); |
| 2627 | } |
| 2628 | srb_cachep = NULL; |
| 2629 | } |
| 2630 | |
| 2631 | fc_release_transport(qla2xxx_transport_template); |
| 2632 | } |
| 2633 | |
| 2634 | module_init(qla2x00_module_init); |
| 2635 | module_exit(qla2x00_module_exit); |
| 2636 | |
| 2637 | MODULE_AUTHOR("QLogic Corporation"); |
| 2638 | MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver"); |
| 2639 | MODULE_LICENSE("GPL"); |
| 2640 | MODULE_VERSION(QLA2XXX_VERSION); |