linux/Documentation/scsi/ChangeLog.lpfc
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   1Known issues :
   2        * Please read the associated RELEASE-NOTES file !!!
   3        * This source release intended for upstream kernel releases only!
   4
   5Changes from 20050323 to 20050413
   6
   7        * Changed version number to 8.0.28
   8        * Fixed build warning for 2.6.12-rc2 kernels: mempool_alloc now
   9          requires a function which takes an unsigned int for gfp_flags.
  10        * Removed pci dma sync calls to coherent/consistent pci memory.
  11        * Merged patch from Christoph Hellwig <hch@lst.de>: split helpers
  12          for fabric and nport logins out of lpfc_cmpl_els_flogi.
  13        * Removed sysfs attributes that are used to dump the various
  14          discovery lists.
  15        * Fix for issue where not all luns are seen.  Search all lists
  16          other than unmap list in lpfc_find_target().  Otherwise INQUIRY
  17          to luns on nodes in NPR or other relevant states (PLOGI,
  18          PRLI...) are errored back and scan() terminates.
  19        * Removed FC_TRANSPORT_PATCHESxxx defines.  They're in 2.6.12-rc1.
  20        * Compare return value of lpfc_scsi_tgt_reset against SCSI
  21          midlayer codes SUCCESS/FAILED which that function returns rather
  22          than SLI return code.
  23        * Removed extraneous calls to lpfc_sli_next_iotag which should
  24          only be called from lpfc_sli_submit_iocb.  Also make
  25          lpfc_sli_next_iotag static.
  26        * Added PCI ID for LP10000-S.
  27        * Changes in lpfc_abort_handler(): Return SUCCESS if we did not
  28          find command in both TX and TX completion queues.  Return ERROR
  29          if we timed out waiting for command to complete after abort was
  30          issued.
  31        * Zero-out response sense length in lpfc_scsi_prep_cmnd to prevent
  32          interpretation of stale sense length when the command completes
  33          - was causing spurious 0710 messages.
  34        * Moved clearing of host_scribble inside host_lock in IO
  35          completion path.
  36        * Fixed a bunch of mixed tab/space indentation.
  37        * Allow hex format numbers in sysfs attribute setting.  Fix
  38          application hang when invalid numbers are used in sysfs
  39          settings.
  40        * Removed extra iotag allocation by lpfc_abort_handler.
  41        * Clear host_scribble in the scsi_cmnd structure when failing in
  42          queuecommand.
  43        * Changed logic at top of lpfc_abort_handler so that if the
  44          command's host_scibble field is NULL, return SUCCESS because the
  45          driver has already returned the command to the midlayer.
  46
  47Changes from 20050308 to 20050323
  48
  49        * Changed version number to 8.0.27
  50        * Changed a few lines from patch submitted by Christoph Hellwig
  51          (3/19). MAILBOX_WSIZE * (uint32_t) is replaced with an
  52          equivalent MAILBOX_CMDSIZE macro.
  53        * Merged patch from Christoph Hellwig (3/19): some misc patches
  54          against the latest drivers:
  55          - stop using volatile.  if you need special ordering use memory
  56            barriers but that doesn't seem to be the case here
  57          - switch lpfc_sli_pcimem_bcopy to take void * arguments.
  58          - remove typecast for constants - a U postfix marks them
  59            unsigned int in C
  60          - add a MAILBOX_CMD_SIZE macro, as most users of
  61            MAILBOX_CMD_WSIZE didn't really want the word count
  62          - kill struct lpfc_scsi_dma_buf and embedded the two members
  63            directly in struct lpfc_scsi_buf
  64          - don't call dma_sync function on allocations from
  65            pci_pool_alloc - it's only for streaming mappings (pci_map_*)
  66        * Merged patch from Christoph Hellwig (3/19) - nlp_failMask isn't
  67          ever used by the driver, just reported to userspace (and that in
  68          a multi-value file which is against the sysfs guidelines).
  69        * Change pci_module_init to pci_register_module() with appropriate
  70          ifdefs.
  71        * Added #include <linux/dma-mapping.h> as required by the DMA
  72          32bit and 64bit defines on some archs.
  73        * Merged patch from Christoph Hellwig (03/19) - fix initialization
  74          order - scsi_add_host must happen last from scsi POV. Also some
  75          minor style/comment fixups.
  76        * Fixed use of TRANSPORT_PATCHES_V2 by changing to
  77          FC_TRANSPORT_PATCHES_V2.
  78
  79Changes from 20050223 to 20050308
  80
  81        * Changed version number to 8.0.26
  82        * Revise TRANSPORT_PATCHES_V2 so that lpfc_target is removed and
  83          rport data is used instead. Removed device_queue_hash[].
  84        * Changed RW attributes of scan_down, max_luns and fcp_bind_method
  85          to R only.
  86        * Fixed RSCN handling during initial link initialization.
  87        * Fixed issue with receiving PLOGI handling when node is on NPR
  88          list and marked for ADISC.
  89        * Fixed RSCN timeout issues.
  90        * Reduced severity of "SCSI layer issued abort device" message to
  91          KERN_WARNING.
  92        * Feedback from Christoph Hellwig (on 2/5) - In the LPFC_EVT_SCAN
  93          case the caller already has the target ID handly, so pass that
  94          one in evt_arg1.
  95        * Fix compile warning/resultant panic in
  96          lpfc_register_remote_port().
  97
  98Changes from 20050215 to 20050223
  99
 100        * Changed version number to 8.0.25
 101        * Add appropriate comments to lpfc_sli.c.
 102        * Use DMA_64BIT_MASK and DMA_32BIT_MASK defines instead of
 103          0xffffffffffffffffULL & 0xffffffffULL respectively.  Use pci
 104          equivalents instead of dma_set_mask and also modify condition
 105          clause to actually exit on error condition.
 106        * Restart els timeout handler only if txcmplq_cnt. On submission,
 107          mod_timer the els_tmofunc.  This prevents the worker thread from
 108          waking up the els_tmo handler un-necessarily.  The thread was
 109          being woken up even when there were no pending els commands.
 110        * Added new typedefs for abort and reset functions.
 111        * Collapsed lpfc_sli_abort_iocb_xxx into a single function.
 112        * Collapsed lpfc_sli_sum_iocb_xxx into a single function.
 113        * Removed TXQ from all abort and reset handlers since it is never
 114          used.
 115        * Fixed Oops panic in 8.0.23 (reported on SourceForge).  The
 116          driver was not handling LPFC_IO_POLL cases correctly in
 117          fast_ring_event and was setting the tgt_reset timeout to 0 in
 118          lpfc_reset_bus_handler.  This 0 timeout would not allow the FW
 119          to timeout ABTS's on bad targets and allow the driver to have an
 120          iocb on two lists.  Also split the lpfc_sli_ringtxcmpl_get
 121          function into two routines to match the fast and slow completion
 122          semantics - ELS completions worked for the wrong reasons.  Also
 123          provided new log message number - had two 0326 entries.
 124        * Removed unused #define LPFC_SCSI_INITIAL_BPL_SIZE.
 125        * Removed unused struct lpfc_node_farp_pend definition.
 126        * Removed unused #define LPFC_SLIM2_PAGE_AREA.
 127        * Changed zeros used as pointers to NULL.
 128        * Removed unneeded braces around single line in lpfc_do_work.
 129        * Close humongous memory leak in lpfc_sli.c - driver was losing 13
 130          iocbq structures per LIP.
 131        * Removed last of GFP_ATOMIC allocations.
 132        * Locks are not taken outside of nportdisc, hbadisc, els and most
 133          of the init, sli, mbox and ct groups of functions
 134        * Fix comment for lpfc_sli_iocb_cmd_type to fit within 80 columns.
 135        * Replaced wait_event() with wait_event_interruptible().
 136          wait_event() puts the woker thread in an UNINTERRUPTIBLE state
 137          causing it to figure in load average calculations. Also add a
 138          BUG_ON to the ret code of wait_event_interruptible() since the
 139          premise is that the worker thread is signal-immune.
 140
 141Changes from 20050208 to 20050215
 142
 143        * Changed version number to 8.0.24
 144        * Fixed a memory leak of iocbq structure.  For ELS solicited iocbs
 145          sli layer now frees the response iocbs after processing it.
 146        * Closed large memory leak -- we were losing 13 iocbq structures
 147          per LIP.
 148        * Changing EIO and ENOMEM to -EIO and -ENOMEM respectively.
 149        * Cleanup of lpfc_sli_iocb_cmd_type array and typing of iocb type.
 150        * Implemented Christoph Hellwig's feedback from 02/05: Remove
 151          macros putLunHigh, putLunLow. Use lpfc_put_lun() inline instead.
 152        * Integrated Christoph Hellwig's feedback from 02/05: Instead of
 153          cpu_to_be32(), use swab16((uint16_t)lun). This is the same as
 154          "swab16() on LE" and "<<16 on BE".
 155        * Added updates for revised FC remote port patch (dev_loss_tmo
 156          moved to rport, hostdata renamed dd_data, add fc_remote_host()
 157          on shutdown).
 158        * Removed unnecessary function prototype.
 159        * Added code to prevent waking up worker thread after the exit of
 160          worker thread.  Fixes panic seen with insmod/rmmod testing with
 161          70 disks.
 162        * Integrated Christoph Hellwig's patch from 1/30: Make some
 163          variables/code static (namely lpfcAlpaArray and
 164          process_nodev_timeout()).
 165        * Integrated Christoph Hellwig's patch from 1/30: Use
 166          switch...case instead of if...else if...else if while decoding
 167          JDEC id.
 168
 169Changes from 20050201 to 20050208
 170
 171        * Changed version number to 8.0.23
 172        * Make lpfc_work_done, lpfc_get_scsi_buf,
 173          lpfc_mbx_process_link_up, lpfc_mbx_issue_link_down and
 174          lpfc_sli_chipset_init static.
 175        * Cleaned up references to list_head->next field in the driver.
 176        * Replaced lpfc_discq_post_event with lpfc_workq_post_event.
 177        * Implmented Christoph Hellwig's review from 2/5: Check for return
 178          values of kmalloc.
 179        * Integrated Christoph Hellwig's patch from 1/30: Protecting
 180          scan_tmo and friends in !FC_TRANSPORT_PATCHES_V2 &&
 181          !USE_SCAN_TARGET.
 182        * Integrated Christoph Hellwig's patch from 1/30: Some fixes in
 183          the evt handling area.
 184        * Integrated Christoph Hellwig's patch from 1/30: Remove usage of
 185          intr_inited variable. The interrupt initilization from OS side
 186          now happens in lpfc_probe_one().
 187        * Integrated Christoph Hellwig's patch from 1/30: remove shim
 188          lpfc_alloc_transport_attr - remove shim lpfc_alloc_shost_attrs -
 189          remove shim lpfc_scsi_host_init - allocate phba mem in scsi's
 190          hostdata readjust code so that they are no use after free's
 191          (don't use after scsi_host_put) - make lpfc_alloc_sysfs_attr
 192          return errors
 193        * Fixed panic in lpfc_probe_one(). Do not delete in a list
 194          iterator that is not safe.
 195        * Clean up fast lookup array of the fcp_ring when aborting iocbs.
 196        * Following timeout handlers moved to the lpfc worker thread:
 197          lpfc_disc_timeout, lpfc_els_timeout, lpfc_mbox, lpfc_fdmi_tmo,
 198          lpfc_nodev_timeout, lpfc_els_retry_delay.
 199        * Removed unused NLP_NS_NODE #define.
 200        * Integrated Christoph Hellwig's patch from 1/30: remove unused
 201          lpfc_hba_list; remove unused lpfc_rdrev_wd30; remove
 202          lpfc_get_brd_no and use Linux provided IDR.
 203        * Changed board reset procedure so that lpfc_sli_send_reset()
 204          writes the INITFF bit and leaves lpfc_sli_brdreset() to clear
 205          the bit.
 206        * Removed outfcpio sysfs device attribute.
 207        * VPD changes: 1) Modify driver to use the model name and
 208          description from the VPD data if it exists 2) Rework use of DUMP
 209          mailbox command to support HBAs with 256 bytes of SLIM.
 210        * Fixed compile error for implicit definition of struct
 211          scsi_target
 212
 213Changes from 20050124 to 20050201
 214
 215        * Changed version number to 8.0.22
 216        * Moved discovery timeout handler to worker thread. There are
 217          function calls in this function which are not safe to call from
 218          HW interrupt context.
 219        * Removed free_irq from the error path of HBA initialization.
 220          This will fix the free of uninitialised IRQ when config_port
 221          fails.
 222        * Make sure function which processes unsolicited IOCBs on ELS ring
 223          still is called with the lock held.
 224        * Clear LA bit from work_ha when we are not supposed to handle LA.
 225        * Fix double locking bug in the error handling part of
 226          lpfc_mbx_cmpl_read_la.
 227        * Implemented fast IOCB processing for FCP ring.
 228        * Since mboxes are now unconditionally allocated outside of the
 229          lock, free them in cases where they are not used.
 230        * Moved out a couple of GFP_ATOMICs in lpfc_disc_timeout, to
 231          before locks so that they can GFP_KERNEL instead. Also cleaned
 232          up code.
 233        * Collapsed interrupt handling code into one function.
 234        * Removed event posting and handling of solicited and unsolicited
 235          iocbs.
 236        * Remove ELS ring handling leftovers from the lpfc_sli_inter().
 237        * ELS ring (any slow ring) moved from the lpfc_sli_inter() into a
 238          worker thread.  Link Attention, Mbox Attention, and Error
 239          Attention, as well as slow rings' attention is passed to the
 240          worker thread via worker thread copy of Host Attention
 241          register. Corresponding events are removed from the event queue
 242          handling.
 243        * Add entries to hba structure to delegate some functionality from
 244          the lpfc_sli_inter() to a worker thread.
 245        * Reduced used of GFP_ATOMIC for memory allocations.
 246        * Moved locks deeper in order to change GFP_ATOMIC to GFP_KERNEL.
 247        * IOCB initialization fix for Raw IO.
 248        * Removed qcmdcnt, iodonecnt, errcnt from lpfc_target and from
 249          driver.
 250        * Added call to lpfc_els_abort in lpfc_free_node.  Modified
 251          lpfc_els_abort to reset txq and txcmplq iterator after a
 252          iocb_cmpl call.
 253        * Fixed a use after free issue in lpfc_init.c.
 254        * Defined default mailbox completion routine and removed code in
 255          the sli layer which checks the mbox_cmpl == 0 to free mail box
 256          resources.
 257        * In lpfc_workq_post_event, clean up comment formatting and remove
 258          unneeded cast of kmalloc's return.
 259        * Removed loop which calls fc_remote_port_unblock and
 260          fc_remote_port_delete for every target as this same effect is
 261          accomplished by the scsi_remove_host call.
 262        * Minor cleanup of header files.  Stop header files including
 263          other header files.  Removed sentinels which hide multiple
 264          inclusions.  Removed unneeded #include directives.
 265        * Fixed memory leaks in mailbox error paths.
 266        * Moved lock from around of lpfc_work_done to lpfc_work_done
 267          itself.
 268        * Removed typedef for LPFC_WORK_EVT_t and left just struct
 269          lpfc_work_evt to comply with linux_scsi review coding style.
 270        * Fixed some trailing whitespaces, spaces used for indentation and
 271          ill-formatting multiline comments.
 272        * Bug fix for Raw IO errors.  Reuse of IOCBs now mandates setting
 273          of ulpPU and fcpi_parm to avoid incorrect read check of Write IO
 274          and incorrect read length.
 275
 276Changes from 20050110 to 20050124
 277
 278        * Changed version number to 8.0.21
 279        * Removed unpleasant casting in the definition and use of
 280          lpfc_disc_action function pointer array.
 281        * Makefile cleanup.  Use ?= operator for setting default
 282          KERNELVERSION and BASEINCLUDE values.  Use $(PWD) consistently.
 283        * Removed call to lpfc_sli_intr from lpfc_config_port_post.  All
 284          Linux systems will service hardware interrupts while bringing up
 285          the driver.
 286        * Christoph Hellwig change request: Reorg of contents of
 287          lpfc_hbadisc.c, lpfc_scsi.h, lpfc_init.c, lpfc_sli.c,
 288          lpfc_attr.c, lpfc_scsi.c.
 289        * Renamed discovery thread to lpfc_worker thread.  Moved handling
 290          of error attention and link attention and mbox event handler to
 291          lpfc_worker thread.
 292        * Removed .proc_info and .proc_name from the driver template and
 293          associated code.
 294        * Removed check of FC_UNLOADING flag in lpfc_queuecommand to
 295          determine what result to return.
 296        * Move modification of FC_UNLOADING flag under host_lock.
 297        * Fix IOERR_RCV_BUFFER_WAITING handling for CT and ELS subsystem.
 298        * Workaround firmware bug for IOERR_RCV_BUFFER_WAITING on ELS
 299          ring.
 300        * Fixed a couple lpfc_post_buffer problems in lpfc_init.c.
 301        * Add missing spaces to the parameter descriptions for
 302          lpfc_cr_delay, lpfc_cr_count and lpfc_discovery_threads.
 303        * Lock before calling lpfc_sli_hba_down().
 304        * Fix leak of "host" in the error path in the remove_one() path.
 305        * Fix comment for lpfc_cr_count.  It defaults to 1.
 306        * Fix issue where we are calling lpfc_disc_done() recursively from
 307          lpfc_linkdown(), but list_for_each_entry_safe() is not safe for
 308          such use.
 309        * Bump lpfc_discovery_threads (count of outstading ELS commands in
 310          discovery) to 32
 311        * If the SCSI midlayer tries to recover from an error on a lun
 312          while the corresponding target is in the NPR state, lpfc driver
 313          will reject all the resets. This will cause the target to be
 314          moved to offline state and block all the I/Os. The fix for this
 315          is to delay the lun reset to a target which is not in MAPPED
 316          state until the target is rediscovered or nodev timeout is
 317          fired.
 318
 319Changes from 20041229 to 20050110
 320
 321        * Changed version number to 8.0.20
 322        * rport fix: use new fc_remote_port_rolechg() function instead of
 323          direct structure change
 324        * rport fix: last null pointer check
 325        * Phase II of GFP_ATOMIC effort.  Replaced iocb_mem_pool and
 326          scsibuf_mem_pool with kmalloc and linked list.  Inserted list
 327          operations for mempool_alloc calls.  General code cleanup.  All
 328          abort and reset routines converted.  Handle_ring_event
 329          converted.
 330        * If the mbox_cmpl == lpfc_sli_wake_mbox_wait in
 331          lpfc_sli_handle_mb_event, pmb->context1 points to a waitq. Do
 332          not free the structure.
 333        * rport fixes: fix for rmmod crash
 334        * rport fixes: when receiving PRLI's, set node/rport role values
 335        * rport fixes: fix for unload and for fabric port deletes
 336        * VPD info bug fix.
 337        * lpfc_linkdown() should be able to process all outstanding events
 338          by calling lpfc_disc_done() even if it is called from
 339          lpfc_disc_done() Moving all events from phba->dpc_disc to local
 340          local_dpc_disc prevents those events from being processed.
 341          Removing that queue. From now on we should not see "Illegal
 342          State Transition" messages.
 343        * Release host lock and enable interrupts when calling
 344          del_timer_sync()
 345        * All related to rports: Clean up issues with rport deletion
 346          Convert to using block/unblock on list remove (was del/add)
 347          Moved rport delete to freenode - so rport tracks node.
 348        * rport fixes: for fport, get maxframe and class support
 349          information
 350        * Added use of wait_event to work with kthread interface.
 351        * Ensure that scsi_transport_fc.h is always pulled in by
 352          lpfc_scsiport.c
 353        * In remote port changes: no longer nulling target->pnode when
 354          removing from mapped list. Pnode get nulled when the node is
 355          freed (after nodev tmo). This bug was causing i/o received in
 356          the small window while the device was blocked to be errored w/
 357          did_no_connect. With the fix, it returns host_busy
 358          (per the pre-remote port changes).
 359        * Merge in support for fc transport remote port use. This removes
 360          any consistent bindings within the driver. All scanning is now
 361          on a per-target basis driven by the discovery engine.
 362
 363Changes from 20041220 to 20041229
 364
 365        * Changed version number to 8.0.19
 366        * Fixed bug for handling RSCN type 3.  Terminate RSCN mode
 367          properly after ADISC handling completes.
 368        * Add list_remove_head macro.  Macro cleans up memory allocation
 369          list handling.  Also clean up lpfc_reset_bus_handler - routine
 370          does not need to allocate its own scsi_cmnd and scsi_device
 371          structures.
 372        * Fixed potential discovery bug, nlp list corrutpion fix potential
 373          memory leak
 374        * Part 1 of the memory allocation rework request by linux-scsi.
 375          This effort fixes the number of bdes per scsi_buf to 64, makes
 376          the scatter-gather count a module parameter, builds a linked
 377          list of scsi_bufs, and removes all dependencies on lpfc_mem.h.
 378        * Reverted lpfc_do_dpc, probe_one, remove_one to original
 379          implementation.  Too many problems (driver not completing
 380          initial discovery, and IO not starting to disks).  Backs out
 381          kthread patch.
 382        * Fix race condition in lpfc_do_dpc.  If wake_up interrupt occurs
 383          while lpfc_do_dpc is running disc_done and the dpc list is
 384          empty, the latest insertion is missed and the schedule_timeout
 385          does not wakeup.  The sleep interval is MAX_SCHEDULE_TIMEOUT
 386          defined as ~0UL >> 1, a very large number.  Hacked it to 5*HZ
 387          for now.
 388        * Fixed bug introduced when discovery thread implementation was
 389          moved to kthread. kthread_stop() is not able to wake up thread
 390          waiting on a semaphore and "modprobe -r lpfc" is not always
 391          (most of the times) able to complete. Fix is in not using
 392          semaphore for the interruptable sleep.
 393        * Small Makefile cleanup - Remove remnants of 2.4 vs. 2.6
 394          determination.
 395
 396Changes from 20041213 to 20041220
 397
 398        * Changed version number to 8.0.18
 399        * Janitorial cleanup after removal of sliinit and ringinit[] ring
 400          statistic is owned by the ring and SLI stats are in sli
 401          structure.
 402        * Integrated patch from Christoph Hellwig <hch@lst.de> Kill
 403          compile warnings on 64 bit platforms: %variables for %llx format
 404          specifiers must be caste to long long because %(u)int64_t can
 405          just be long on 64bit platforms.
 406        * Integrated patch from Christoph Hellwig <hch@lst.de> Removes
 407          dead code.
 408        * Integrated patch from Christoph Hellwig <hch@lst.de>: use
 409          kthread interface.
 410        * Print LPFC_MODULE_DESC banner in module init routine.
 411        * Removed sliinit structure and ringinit[] array.
 412        * Changed log message number from 324 to 326 in lpfc_sli.c.
 413        * Wait longer for commands to complete in lpfc_reset_bus_handler
 414          and lpfc_reset_bus_handler.  Also use schedule_timeout() instead
 415          of msleep() and add error message in lpfc_abort_handler()
 416        * When setting lpfc_nodev_tmo, from dev_loss set routine, make 1
 417          sec minimum value.
 418        * Functions which assume lock being held were called without lock
 419          and kernel complained about unlocking lock which is not locked.
 420        * Added code in linkdown to unreg if we know login session will be
 421          terminated.
 422        * Removed automap config parameter and fixed up use_adisc logic to
 423          include FCP2 devices.
 424
 425Changes from 20041207 to 20041213
 426
 427        * Changed version number to 8.0.17
 428        * Fix sparse warnings by adding __iomem markers to lpfc_compat.h.
 429        * Fix some sparse warnings -- 0 used as NULL pointer.
 430        * Make sure there's a space between every if and it's (.
 431        * Fix some overly long lines and make sure hard tabs are used for
 432          indentation.
 433        * Remove all trailing whitespace.
 434        * Integrate Christoph Hellwig's patch for 8.0.14: if
 435          pci_module_init fails we need to release the transport template.
 436          (also don't print the driver name at startup, linux drivers can
 437          be loaded without hardware present, and noise in the log for
 438          that case is considered unpolite, better print messages only for
 439          hardware actually found).
 440        * Integrate Christoph Hellwig's patch for 8.0.14: Add missing
 441          __iomem annotations, remove broken casts, mark functions static.
 442          Only major changes is chaning of some offsets from word-based to
 443          byte-based so we cans simply do void pointer arithmetics (gcc
 444          extension) instead of casting to uint32_t.
 445        * Integrate Christoph Hellwig's patch for 8.0.14: flag is always
 446          LPFC_SLI_ABORT_IMED, aka 0 - remove dead code.
 447        * Modified preprocessor #ifdef, #if, #ifndef to reflect upstream
 448          kernel submission.  Clean build with make clean;make and make
 449          clean;make ADVANCED=1 on SMP x86, 2.6.10-rc2 on RHEL 4 Beta
 450          1. IO with a few lips and a long cable pull behaved accordingly.
 451        * Implement full VPD support.
 452        * Abort handler will try to wait for abort completion before
 453          returning.  Fixes some panics in iocb completion code path.
 454
 455Changes from 20041130 to 20041207
 456        
 457        * Changed version number to 8.0.16
 458        * Hung dt session fix.  When the midlayer calls to abort a scsi
 459          command, make sure the driver does not complete post-abort
 460          handler.  Just NULL the iocb_cmpl callback handler and let SLI
 461          take over.
 462        * Add Read check that uses SLI option to validate all READ data
 463          actually received.
 464
 465
 466Changes from 20041123 to 20041130
 467
 468        * Changed version number to 8.0.15
 469        * Ifdef'd unused "binary" attributes by DFC_DEBUG for clean
 470          compiles
 471        * Stop DID_ERROR from showing up along with QUEUE_FULL set by the
 472          Clarion array (SCSI error ret. val.  0x70028) There is no need
 473          for driver to hard fail command which was failed by the target
 474          device.
 475        * Fix for Scsi device scan bug reported on SourceForge.  Driver
 476          was returning a DID_ERROR in lpfc_handle_fcp_error causing
 477          midlayer to mark report luns as failing even though it
 478          succeeded.
 479        * Don't ignore SCSI status on underrun conditions for inquiries,
 480          test unit ready's, etc.  This was causing us to lose
 481          reservation conflicts, etc
 482
 483Changes from 20041018 to 20041123
 484        
 485        * Changed version number to 8.0.14
 486        * Added new function "iterator" lpfc_sli_next_iocb_slot() which
 487          returns pointer to iocb entry at cmdidx if queue is not full.
 488          It also updates next_cmdidx, and local_getidx (but not cmdidx)
 489        * lpfc_sli_submit_iocb() copies next_cmdidx into cmdidx. Now it is
 490          the only place were we are updating cmdidx.
 491        * lpfc_sli_update_ring() is split in to two --
 492          lpfc_sli_update_ring() and lpfc_sli_update_full_ring().
 493        * lpfc_sli_update_ring() don't to read back correct value of
 494          cmdidx.
 495        * Simplified lpfc_sli_resume_iocb() and its use.
 496        * New static function lpfc_sli_next_iocb(phba, pring, &piocb) to
 497          iterate through commands in the TX queue and new command (at the
 498          end).
 499        * Reduced max_lun to 256 (due to issues reported to some arrays).
 500          Fixed comment, and macro values so def=256, min=1, max=32768.
 501        * Fix an obvious typo/bug: kfree was used to free lpfc_scsi_buf
 502          instead of mempool_free in lpfc_scsiport.c.
 503        * Suppress nodev_tmo message for FABRIC nodes.
 504        * Fixed some usage of plain integer as NULL pointer.
 505        * Bug fix for FLOGI cmpl, lpfc_els_chk_latt error path code
 506          cleanup.
 507        * Fixup lpfc_els_chk_latt() to have Fabric NPorts go thru
 508          discovery state machine as well.
 509        * Fixes to lpfc_els_chk_latt().
 510        * Use DID not SCSI target id as a port_id and add some missing
 511          locks in lpfc_fcp.c.
 512        * Changed eh_abort_handler to return FAILED if command is not
 513          found in driver.
 514        * Fix crash: paging request at virtual address 0000000000100108 -
 515          a result of removing from the txcmpl list item which was already
 516          removed (100100 is a LIST_POISON1 value from the next pointer
 517          and 8 is an offset of the "prev") Driver runs out of iotags and
 518          does not handle that case well. The root of the proble is in the
 519          initialization code in lpfc_sli.c
 520        * Changes to work with proposed linux kernel patch to support
 521          hotplug.
 522        * Zero out seg_cnt in prep_io failure path to prevent double sg
 523          unmap calls.
 524        * Fix setting of upper 32 bits for Host Group Ring Pointers if in
 525          SLIM. Old code was inappropriately masking off low order bits.
 526        * Use scsi_[activate|deactivate]_tcq calls provided in scsi_tcq.h.
 527        * Integrated patch from Christoph Hellwig (hch@lst.de): don't call
 528          pci_dma_sync_* on coherent memory. pci_dma_sync_* is need and
 529          must be used only with streaming dma mappings pci_map_*, not
 530          coherent mappings.  Note: There are more consistent mappings
 531          that are using pci_dma_sync calls. Probably these should be
 532          removed as well.
 533        * Modified lpfc_free_scsi_buf to accommodate all three scsi_buf
 534          free types to alleviate miscellaneous panics with cable pull
 535          testing.
 536        * Set hotplug to default 0 and lpfc_target_remove to not remove
 537          devices unless hotplug is enabled.
 538        * Fixed discovery bug: plogi cmpl uses ndlp after its freed.
 539        * Fixed discovery bug: rnid acc cmpl, can potentially use ndlp
 540          after its freed.
 541        * Modularize code path in lpfc_target_remove().
 542        * Changes to support SCSI hotplug (ifdef'ed out because they need
 543          kernel support USE_SCAN_TARGET requires kernel support to export
 544          the interface to scsi_scan_target and to move the SCAN_WILD_CARD
 545          define to a general scsi header file.  USE_RESCAN_HOST requires
 546          kernel support to export an interface to scan_scsi_host() with
 547          the rescan flag turned on).
 548        * Removed redundant variable declaration of lpfc_linkdown_tmo.
 549        * Fix for large port count remove test.
 550        * Added check to see if BAR1 register is valid before using BAR1
 551          register for programming config_port mail box command.
 552        * Added lpfc_scsi_hotplug to enable/disable driver support of SCSI
 553          hotplug.
 554        * Changed lpfc_disc_neverdev() to lpfc_disc_illegal() and changed
 555          lpfc_disc_nodev() to lpfc_disc_noop().  Adjusted appropriate
 556          events to use these routines.
 557        * Add support for SCSI device hotplug.
 558        * Take dummy lpfc_target's into account for lpfc_slave_destroy().
 559        * Bug fix to store WWPN / WWNN in NameServer / FDMI lpfc_nodelist
 560          entries.
 561        * Added slavecnt in lpfc_target for diagnostic purposes.
 562        * Added lpfc_hba load/unload flags to take care of special cases
 563          for add/remove device.
 564        * Have target add/remove delay before scanning.
 565        * Have rmmod path cleanup blocked devices before scsi_remove_host.
 566        * Added a #define for msleep for 2.6.5 kernels.
 567        * In reset bus handler if memory allocation fails, return FAILED
 568          and not SUCCESS.
 569        * Have lpfc eh handlers, bus_reset and lun_reset, wait for all
 570          associated I/Os to complete before returning.
 571        * Fix memset byte count in lpfc_hba_init so that
 572          LP1050 would initialize correctly.
 573        * Backround nodev_timeout processing to DPC This enables us to
 574          unblock (stop dev_loss_tmo) when appopriate.
 575        * Fix array discovery with multiple luns.  The max_luns was 0 at
 576          the time the host structure was initialized.  lpfc_cfg_params
 577          then set the max_luns to the correct value afterwards.
 578        * Remove unused define LPFC_MAX_LUN and set the default value of
 579          lpfc_max_lun parameter to 512.
 580        * Reduced stack usage of lpfc_hba_init.
 581        * Cleaned up the following warning generated by
 582          scripts/checkincludes.pl lpfc_fcp.c: scsi/scsi_cmnd.h is
 583          included more than once.
 584        * Replaced "set_current_state(TASK_UNINTERRUPTIBLE);
 585          schedule_timeout(timeout)" with "msleep(timeout)".
 586        * Fixnode was losing starget when rediscovered. We saw messages
 587          like: lpfc 0000:04:02.0: 0:0263 Cannot block scsi target as a
 588          result.  Moved starget field into struct lpfc_target which is
 589          referenced from the node.
 590        * Add additional SLI layer logging in lpfc_sli.c.
 591        * Ignore more unexpected completions in lpfc_nportdisc.c.
 592        * Can not call lpfc_target_unblock from the soft interrupt
 593          context.  It seems to be not nessasery to unblock target from
 594          nodev timeout.
 595        * Introduce and use less lethal event handler for unexpected
 596          events in lpfc_nportdisc.c.
 597        * Can not call fc_target_(un)block() functions with interrupts
 598          disabled in lpfc_scsiport.c.
 599        * Added new configuration parameter, lpfc_max_luns range 1-32768,
 600          default 32768.
 601        * Allow lpfc_fcp.c to call lpfc_get_hba_sym_node_name().
 602        * Increase nodev timeout from 20 seconds to 30 seconds.
 603        * Replace some kfree((void*)ptr) with kfree(ptr).
 604        * Make 3 functions static: lpfc_get_hba_sym_node_name,
 605          lpfc_intr_prep and lpfc_setup_slim_access.  Move lpfc_intr_prep
 606          and lpfc_setup_slim_access so they're defined before being used.
 607        * Remove an unnecessary list_del() in lpfc_hbadisc.c.
 608        * Set nlp_state before calling lpfc_nlp_list() since this will
 609          potentially call fc_target_unblock which may cause a race in
 610          queuecommand by releasing host_lock.
 611        * Since lpfc_nodev_tmo < dev_loss_tmo remove queuecommand
 612          DID_BAD_TARGET return for now.
 613        * Fix a problem with rcv logo.
 614        * Remove unused portstatistics_t structure.
 615        * Remove #if 0 and unnecessary checks in lpfc_fcp.c.
 616        * Simplify lpfc_issue_lip: Extra layer of protection removed.
 617        * Grab lock before calling lpfc_sli_issue_mbox(phba, pmb,
 618          MBX_NOWAIT) in lpfc_sli_issue_mbox_wait().
 619
 620Changes from 20040920 to 20041018
 621
 622        * Changed version number to 8.0.13
 623        * Hide some attributes using #ifndef DFC_DEBUG ... #endif.
 624        * Modify Makefile to (1) make BUILD_NO_DEBUG=1 will hide some
 625          (binary) attributes (2) make BUILD_FC_TRANS=0 will build driver
 626          for 2.6.5 kernel with block/unblock patch.
 627        * Modified #ifdef names.
 628        * Added support for proposed FC transport host attributes (which
 629          replaces some of the attributes we had local to the driver).
 630          Removed the binary statistics sysfs attribute.
 631        * Added extra ELS verbose logging for ELS responses.
 632        * Added recognition for BUILD_FC_TRANS=2 to Makefile to define
 633          FC_TRANS_VER2.
 634        * Add a pointer for link stats allocation.
 635        * Exported lpfc_get_hba_sym_node_name for use by FC_TRANS_VER2
 636          sysfs routines.
 637        * Fix discovery problem in lip testing: if device sends an ELS cmd
 638          (i.e. LOGO) before our FLOGI completes it should be LS_RJT'ed.
 639        * Moved #defines around to provide target_add/remove for upstream
 640          kernel deliverables only not SLES9.  Provided ifdefs to #include
 641          target_block/unblock only if FC_TRANS_VER1.
 642        * Add sanity check in lpfc_nlp_list move setting nlp_Target
 643          outside #ifdef.
 644        * Added a blocked member to the lpfc_target structure for
 645          block/unblock.  This member allows the driver to know when to
 646          unblock for pci_remove_one or pci_add_one.  #ifdef'd some more
 647          block/unblock stuff and removed some defensive checks from
 648          target_block/unblock.
 649        * Moved + 5 second window to dev_loss_tmo setting and updated
 650          comments.
 651        * Removed NULL target check from target_block/unblock and fixed up
 652          a few comments.
 653        * Enable sysfs attributes on 2.6.5 kernels and remove extra
 654          compatibility code.
 655        * Remove any and all trailing whitespace.
 656        * Added message 0718 and return error when dma_map_single fails.
 657        * Changed the fcpCntl2 commands to include an FCP_ prefix to get
 658          rid of build warnings on later 2.6.9-rc kernels.  Build
 659          conflicts with scsi/scsi.h.  Remove inclusions of scsi/scsi.h
 660          from hbadisc.c, sli.c, and fcp.c since these modules had no
 661          dependencies on scsi.h.
 662        * Fixed a bug with RSCN handling. A RSCN received on one device,
 663          shouldn't affect other devices not referenced by the RSCN.
 664        * Moved #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,6) to include
 665          lpfc_jedec_to_ascii to prevent warning in SLES 9.
 666        * Update Makefile to account for SLES 9 and scsi-target upstream
 667          kernel.
 668        * This checkin provides block/unblock hooks for the upstream scsi
 669          target kernel and 2.6.5 on SLES9 SP1 with the block/unblock
 670          patch.
 671        * Discovery changes regarding setting targetp->pnode and
 672          ndlp->nlp_Target Ensure fc_target_* routines are called properly
 673          from discovery.  Remove list_del's from lpfc_cleanup().  Ensure
 674          all the lpfc_consistent_bind_* routines don't set any driver
 675          structure objects.
 676        * Fix for timeout of READ_LA or READ_SPARAM mailbox command
 677          causing panic.
 678        * Cleanup list_del()'s for Discovery ndlp lists.
 679        * Bug fixes for some insmod/rmmod crashes, link down crashes and
 680          device loss crashes.
 681        * Removed NLP_SEARCH_DEQUE.
 682        * Call lpfc_target_unblock only if the targetp is nonNull and with
 683          the host_lock held.
 684        * Added qcmdcnt back along with misc bug fixes to discovery.
 685        * Changed tgt_io to outfcpio lpfc_fcp.c.
 686        * Fixed errors caused by LIP and cable pulls both with and without
 687          block/unblock patch.
 688        * For now we have to call fc_target_unblock and fc_target_block
 689          with interrupts enabled.
 690        * Save seg_cnt from dma_map_sg.  Save scatter-gather start address
 691          and pass back to dma_unmap_sg in error with seg_cnt.
 692        * Incorporating block/unblock calls into driver with ifdefs.  This
 693          change is supported by scsi-target-2.6 kernel and forward only.
 694        * Merged in some discovery bug fixes and added tgt io counters.
 695        * Added sysfs attributes/interfaces: read only attribute
 696          "management_version" and write only attribute "issue_lip".
 697        * Fix build on big endian machines: while #if was OK with
 698          __BIG_ENDIAN which defined as 4321, __BIG_ENDIAN_BITFIELD has to
 699          be tested with #ifdef because it does not have any value, it is
 700          either defined or not.
 701        * Add fabric_name and port_type attributes.
 702        * Change mdelay to msleep.  mdelay works, but wastefully uses cpu
 703          resources without a lock held. Revert to msleep.  Tested with
 704          sg_reset for bus and three attached targets.
 705        * Added the customary #ifndef...#define...#endif to
 706          lpfc_version.h.
 707        * Integrate patches from Christoph Hellwig: two new helpers common
 708          to lpfc_sli_resume_iocb and lpfc_sli_issue_iocb - singificant
 709          cleanup of those two functions - the unused SLI_IOCB_USE_TXQ is
 710          gone - lpfc_sli_issue_iocb_wait loses its flags argument
 711          totally.
 712        * Fix in lpfc_sli.c: we can not store a 5 bit value in a 4-bit
 713          field.
 714        * Moved some routines out of lpfc_fcp.c into more appropriate
 715          files.
 716        * Whitespace cleanup: remove all trailing whitespace.
 717        * Make lpfc_disc_ndlp_show static to lpfc_fcp.c.
 718        * Remove leftover printk and replace some with
 719          printk(KERN_WARNING)
 720        * Trivial: fix a few long lines and a soft tab.
 721        * Remove warnings generated by Sparse against driver (make
 722          C=1). Mostly these are "using integer as pointer warnings"
 723          i.e. use NULL instead of 0.
 724        * Integrated patch from Christoph Hellwig: Quite a lot of changes
 725          here, the most notable is that the phba->slim2p lpfc_dmabuf goes
 726          away in favour of a typede pointer and a dma_addr_t.  Due to the
 727          typed pointer lots of the cast mess can go away, and while at it
 728          I also replaced the messy SLI2_SLIM_t with a simple struct
 729          lpfc2_sli2_slim that only contains the part of the union we care
 730          about while using SLI2_SLIM_SIZE for all size calculations
 731          directly.
 732        * Integrated patch from Christoph Hellwig: This streamlines the
 733          I/O completion path a little more, especially taking care of
 734          fast-pathing the non-error case.  Also removes tons of dead
 735          members and defines from lpfc_scsi.h - e.g. lpfc_target is down
 736          to nothing more than the lpfc_nodelist pointer.
 737        * Added binary sysfs file to issue mbox commands
 738        * Replaced #if __BIG_ENDIAN with #if __BIG_ENDIAN_BITFIELD for
 739          compatibility with the user space applications.
 740        * Decrease the amount of data in proc_info.
 741        * Condense nodelist flag members.
 742        * Expand INFO for discovery sysfs shost entries.
 743        * Notify user if information exceeds 4k sysfs limit.
 744        * Removed a bunch of unused #defines.
 745        * Added initial sysfs discovery shost attributes.
 746        * Remove unused #defines lpfc_disc.h.
 747        * Fixed failMask nodelist settings.
 748        * Cleanup some old comments / unused variables.
 749        * Add LP101 to list of recognized adapters.
 750
 751Changes from 20040908 to 20040920
 752
 753        * Changed version number to 8.0.12
 754        * Removed used #defines: DEFAULT_PCI_LATENCY_CLOCKS and
 755          PCI_LATENCY_VALUE from lpfc_hw.h.
 756        * Changes to accommodate rnid.
 757        * Fix RSCN handling so RSCN NS queries only effect NPorts found in
 758          RSCN data.
 759        * If we rcv a plogi on a NPort queued up for discovery, clear the
 760          NLP_NPR_2B_DISC bit since rcv plogi logic will force NPort thru
 761          discovery.
 762        * Ensure lpfc_target is also cleaned up in lpfc_cleanup().
 763        * Preliminary changes for block/unblock kernel API extensions in
 764          progress with linux-scsi list.  These are name changes and
 765          prototype changes only.
 766        * Added send_abts flag to lpfc_els_abort. For rcv LOGO when ADISC
 767          sent, the XRI of the LOGO rcv'ed is the same as the ADISC
 768          sent. Thus we cannot ABTS the ADISC before sending the LOGO ACC.
 769        * Weed out some unused fc_flags.  Add FC_DISC_TMO.
 770        * board_online sysfs attribute added to support libdfc functions
 771          InitDiagEnv and SetBrdEnv.
 772        * Streamline code in lpfc_els_retry fixup abort case in
 773          lpfc_els_timeout_handler().
 774        * Flush discovery/ELS events when we bring SLI layer down.
 775        * ctlreg and slimem binary attributes added to support libdfc
 776          read/write mem/ctl functions.
 777        * Integrated Christoph Hellwig's patch: Cleanup
 778          lpfc_sli_ringpostbuf_get.
 779        * Modified lpfc_slave_alloc and lpfc_slave_destroy to allocate and
 780          free a dummy target pointer.  This allows queuecommand to skip
 781          the NULL target pointer check and avoid the console spam when
 782          slave_alloc fails.
 783        * Fix cfg_scan_down logic, it was reversed.
 784        * Init list head ctrspbuflist.
 785        * Change name of lpfc_driver_abort to lpfc_els_abort since it is
 786          only valid for ELS ring.
 787        * Remove unused third argument for lpfc_consistent_bind_get().
 788        * Fix up iotag fields in lpfc_prep_els_iocb().
 789        * Remove log message on code path triggered by lpfc_els_abort().
 790        * Set host->unique_id in lpfc_fcp.c.
 791        * Removed deadwood: lpfc_target.pHba not necessary anymore.
 792        * Integrated patch from Christoph Hellwig: remove dead
 793          SLI_IOCB_POLL handling.
 794        * Integrated patch from Christoph Hellwig: Streamline I/O
 795          submission and completion path a little.
 796        * Remove unnecessary lpfc_brd_no.  Ensure brd_no assignment is
 797          unique.
 798        * Removed unused MAX_FCP_LUN.
 799        * Use mod_timer instead of add_timer for fdmi in lpfc_ct.c.
 800        * Fixed misc discovery problems.
 801        * Move stopping timers till just before lpfc_mem_free() call.
 802        * Fix up NameServer reglogin error path.
 803        * Cleanup possible outstanding discovery timers on rmmod.
 804        * Fix discovery NPort to NPort pt2pt problem.
 805        * Get rid of ip_tmofunc / scsi_tmofunc.
 806        * Integrated patch from Christoph Hellwig:
 807          lpfc_disc_done/lpfc_do_dpc cleanup - lpfc_disc_done can return
 808          void - move lpfc_do_dpc and lpfc_disc_done to lpfc_hbadisc.c -
 809          remove checking of list emptiness before calling lpfc_disc_done,
 810          it handles the empty list case just fine and the additional
 811          instructions cost less then the bustlocked spinlock operations.
 812        * Integrated patch from Christoph Hellwig: This adds a new 64bit
 813          counter instead, brd_no isn't reused anymore.  Also some tiny
 814          whitespace cleanups in surrounding code.
 815        * Reorder functions in lpfc_els.c to remove need for prototypes.
 816        * Removed unused prototypes from lpfc_crtn.h -
 817          lpfc_ip_timeout_handler, lpfc_read_pci and lpfc_revoke.
 818        * Removed some unused prototypes from lpfc_crtn.h -
 819          lpfc_scsi_hba_reset, lpfc_scsi_issue_inqsn,
 820          lpfc_scsi_issue_inqp0, lpfc_scsi_timeout_handler.
 821        * Integrated patch from Christoph Hellwig: remove TRUE/FALSE
 822          usage.
 823        * Integrated patch from Christoph Hellwig: Remove unused function
 824          prototypes lpfc_set_pkt_len and lpfc_get_pkt_data from
 825          lpfc_crtn.h - fixes build warnings.
 826        * Removed unused struct lpfc_dmabufip definition from lpfc_mem.h.
 827        * Removed pre-2.6.5 MODULE_VERSION macro from lpfc_compat.h.
 828        * Fixing missing static and removing dead code.
 829        * Adding nodewwn, portwwn and portfcid shost attributes.
 830        * Initial support for CT via sysfs. request payloads of size less
 831          than PAGE_SIZE and rsp payloads of size PAGE_SIZE are supported.
 832          Driver maintains a list of rsp's and passes back rsp's
 833          corresponding to the pid of the calling process.
 834        * Support for RefreshInformation, GetAdapterAttributes,
 835          GetPortStatistics.
 836        * Make nodev-tmo default to 20 seconds.
 837        * Fix up some DSM error cases, unreg_login rpi where needed.
 838        * Fix up comments for fc_target_block / fc_target_unblock.
 839        * Fix up code for scsi_block_requests / scsi_unblock_requests.
 840        * Add NLP_FCP_TARGET for nodeinfo support.
 841        * Move suspend/resume in lpfc_nlp_list under appropriate case -
 842          Used host_lock for DPC to avoid race (remove dpc_lock)
 843        * Fix some corner cases for PLOGI receive - simplify error case
 844          for cmpl_reglogin_reglogin_issue.
 845        * Bug fix for ppc64 EEH MMIO panic - always do readl after
 846          writel's of HBA registers to force flush.
 847        * Get rid of initial static routine declarations in lpfc_hbadisc.c
 848          and lpfc_els.c.
 849        * Updates to discovery processing.
 850
 851Changes from 20040823 to 20040908
 852
 853        * Changed version number to 8.0.11
 854        * Removed persistent binding code.
 855        * Display both ASC and ASCQ info.
 856        * Fixed link down->up transitions when linkdown tmo expires. Fix
 857          was in the defensive error checking at the start of
 858          queuecommand.
 859        * Removed lpfc_scsi_timeout_handler as this timer is no longer
 860          required.  The midlayer will exhaust retries and then call
 861          lpfc_abort_handler, lpfc_reset_lun_handler, and
 862          lpfc_reset_target_handler.
 863        * Minimal support for SCSI flat space addressing/volume set
 864          addressing.  Use 16 bits of LUN address so that flat
 865          addressing/VSA will work.
 866        * Changed 2 occurrences of if( 1 != f(x)) to if(f(x) != 1)
 867        * Drop include of lpfc_cfgparm.h.
 868        * Reduce stack usage of lpfc_fdmi_cmd in lpfc_ct.c.
 869        * Add minimum range checking property to /sys write/store
 870          functions.
 871        * Fix display of node_name and port_name via fc transport
 872          attr.
 873        * Removed biosparam code.
 874        * Removed range checking. phba->config[] array elements are now
 875          embedded into the hba struct. lpfc_config_setup() has been
 876          removed.
 877        * Collapsed lpfc_scsi_cmd_start into lpfc_queuecommand and cleaned
 878          up combined routines.
 879        * Removed unused prototypes myprint and
 880          lpfc_sched_service_high_priority_queue.
 881        * Removed unused function lpfc_nodev.
 882        * Removed scsi_cmnd->timeout_per_command cancelation. SCSI midlayer
 883          now times out all commands - FW is instructed to not timeout.
 884        * Removed polling code from lpfc_scsi_cmd_start. Reorganized
 885          queuecommand and cmd_start some.
 886
 887Changes from 20040810 to 20040823
 888
 889        * Changed version number to 8.0.10
 890        * Additional timer changes as per Arjan / Christoph's comments.
 891        * Used mod_timer() instead of del_timer_sync() where appropriate.
 892        * Fixed a use after free case (panic on 2.6.8.1 with
 893          CONFIG_DEBUG_SLAB set).
 894        * Fix compile warning in lpfc_fcp.c.
 895        * Minor fix for log message, that prints unassigned brdno which is
 896          zero.
 897        * Move scsi_host_alloc() to the beginning of probe_one(). This
 898          ensures that host_lock is available at later stages and also
 899          avoids tons of unnecessary initializing if host_alloc()
 900          fails.
 901        * Removed else clause from lpfc_slave_configure that set
 902          sdev->queue_depth.  The driver informs the midlayer of its
 903          setting in the template and only overrides if queue tagging is
 904          enabled.
 905        * Added PCI_DEVICE_ID_ZEPHYR and PCI_DEVICE_ID_ZFLY (Junior
 906          Zephyr) support
 907
 908Changes from 20040730 to 20040810
 909        
 910        * Changed version number to 8.0.9
 911        * Removed per HBA driver lock.  Driver now uses the host->host_lock
 912        * Restored support for the 2.6.5 kernel for those linux distributions
 913          shipped with the 2.6.5 kernel.
 914        * Applied patch from Christoph Hellwig (hch@infradead.org) as follows
 915          "[PATCH] use scsi host private data in ->proc_info.  
 916        * Applied patch from Christoph Hellwig (hch@infradead.org) as follows
 917          "Re: [Emulex] Ready for next round.  This patch cleans up the memory 
 918          allocation routines a little and fixes a missing mempool_destroy and
 919          some missing error handling."
 920        * Changed pointers assignments from 0 to NULL.
 921        * Added fixes to the lpfc_reset_lun_handler and lpfc_reset_bus_handler
 922          entry points that caused kernel to Oops or hang.
 923        * Added fixes to targetless hosts that caused modprobe and insmod to hang.
 924        * Ongoing cleanup to many files
 925          
 926Changes from 20040723 to 20040730
 927
 928        * Changed version number to 8.0.8
 929        * Removed unused LPFN_DRIVER_VERSION #define.
 930        * Folded lpfc_findnode_scsiid into lpfc_find_target, its only
 931          caller.
 932        * Removed 2 unneeded arguments to lpfc_find_target (lun and
 933          create_flag).
 934        * Make lpfc_sli_reset_on_init = 1
 935        * Minor cleanup to quieten sparse.
 936        * Removed missing function = 0 in tmo routine in lpfc_els.c.
 937        * Moved additional binding parameters into lpfc_defaults.c:
 938          lpfc_automap / lpfc_fcp_bind_method
 939        * Use msecs_to_jiffies() where applicable.
 940        * Only use queue depth attribute only after SLI HBA setup was
 941          completed.
 942        * Put in memory barriers for PPC
 943        * Added PCI_DEVICE_ID_HELIOS and PCI_DEVICE_ID_JFLY (Junior
 944          Helios) support
 945        * Added 4&10 gigabit choices in user option link_speed
 946        * Updated timer logic: Set timer data after init_timer use
 947          timer_pending() instead of expires.
 948        * Removed some remnants of IP over FC support from Kconfig and
 949          Makefile.
 950        * Remove redundant prototypes for lpfc_handle_eratt,
 951          lpfc_handle_latt and lpfc_read_pci.
 952        * Ongoing cleanup of lpfc_init.c.
 953        * Changed LPFC_CFG_DFT_HBA_Q_DEPTH -> LPFC_CFG_HBA_Q_DEPTH.
 954        * Another cleanup stab at lpfc_ct.c. Remove castings, structure
 955          code sanely, remove redundant code, reorganize code so that
 956          functions are invoked after definition.
 957
 958Changes from 20040716 to 20040723
 959
 960        * Changed version number to 8.0.7
 961        * Cleanup of lpfc_ct.c. Removed number of casts, removed tons of
 962          dead/redundant code, cleaned up badly and poorly written code,
 963          cleaned up return values.
 964        * Fixed Persistent binding implementation
 965        * Removed all references to lpfc_scsi_req_tmo
 966        * Removed last references to lun_skip config parameter.
 967        * Removed LPFC_DEV_RPTLUN node failure bit because we don't issue
 968          REPORT_LUNS from the driver anymore.
 969        * Removed LUN-tracking in driver.  Removed lpfc_lun struct and
 970          moved any functionality we still need to lpfc_target.
 971        * Added new lpfc_jedec_to_ascii() call and replace two instances
 972          of duplicate code with calls to this function.
 973        * Removed Volume Set Addressing handling on LUN IDs.
 974        * Applied patch from Christoph Hellwig (hch@infradead.org) that
 975          removes dead code belonging to lpfc_build_scsi_cmnd() and its
 976          call path. This is related to the recently removed report_lun
 977          code.
 978
 979Changes from 20040709 to 20040716
 980
 981        * Changed version number to 8.0.6
 982        * Removed internal report LUNs usage.  Removed functions:
 983          lpfc_disc_issue_rptlun, lpfc_disc_cmpl_rptlun,
 984          lpfc_disc_retry_rptlun and their use.
 985        * Removed usused scheduler prototypes in lpfc_crtn.h
 986        * Replace lpfc_geportname() with generic memcmp().
 987        * Rearrange code in lpfc_rcv_plogi_plogi_issue() to make it a
 988          little more readable.
 989        * Remove redundant port_cmp != 2 check in if
 990          (!port_cmp) { .... if (port_cmp != 2).... }
 991        * Clock changes: removed struct clk_data and timerList.
 992        * Clock changes: separate nodev_tmo and els_retry_delay into 2
 993          separate timers and convert to 1 argument changed
 994          LPFC_NODE_FARP_PEND_t to struct lpfc_node_farp_pend convert
 995          ipfarp_tmo to 1 argument convert target struct tmofunc and
 996          rtplunfunc to 1 argument * cr_count, cr_delay and
 997          discovery_threads are only needed to be module_params and not
 998          visible via sysfs.
 999
1000Changes from 20040614 to 20040709
1001
1002        * Changed version number to 8.0.5
1003        * Make lpfc_info static.
1004        * Make lpfc_get_scsi_buf static.
1005        * Print a warning if pci_set_mwi returns an error.
1006        * Changed SERV_PARM to struct serv_parm.
1007        * Changed LS_RJT to struct ls_rjt.
1008        * Changed CSP to struct csp.
1009        * Changed CLASS_PARMS to struct class_parms.
1010        * Some cosmetic coding style cleanups to lpfc_fcp.c.
1011        * Providing a sysfs interface that dumps the last 32
1012          LINK_[UP|DOWN] and RSCN events.
1013        * Get rid of delay_iodone timer.
1014        * Remove qfull timers and qfull logic.
1015        * Convert mbox_tmo, nlp_xri_tmo to 1 argment clock handler
1016        * Removed duplicate extern defs of the bind variables.
1017        * Streamline usage of the defines CLASS2 and CLASS3, removing
1018          un-necessary checks on config[LPFC_CFG_FCP_CLASS].
1019        * Moving the persistent binding variables to new file
1020          lpfc_defaults.c
1021        * Changed LPFC_SCSI_BUF_t to struct lpfc_scsi_buf.
1022        * Moved config specific code from probe_one() into
1023          config_setup(). Removing a redundant check on scandown value
1024          from bind_setup() as this is already done in config_setup().
1025        * Changed LPFC_SLI_t to struct lpfc_sli.
1026        * Changed FCP_CMND to struct fcp_cmnd.
1027        * Changed FCP_RSP to struct fcp_rsp.
1028        * Remove the need for buf_tmo.
1029        * Changed ULP_BDE64 to struct ulp_bde64.
1030        * Changed ULP_BDE to struct ulp_bde.
1031        * Cleanup lpfc_os_return_scsi_cmd() and its call path.
1032        * Removed lpfc_no_device_delay.
1033        * Consolidating lpfc_hba_put_event() into lpfc_put_event().
1034        * Removed following attributes and their functionality:
1035          lpfc_extra_io_tmo, lpfc_nodev_holdio, lpfc_delay_rsp_err,
1036          lpfc_tgt_queue_depth and lpfc_check_cond_err.
1037        * Clock changes consolidating timers, just in the struct lpfc_hba,
1038          to get rid of clkData and pass only one argument to timeout
1039          routine. Also, removing need for outstanding clock linked list
1040          to stop these timers at rmmod.
1041        * Move lpfc.conf contents into lpfc_fcp.c. Removing per adapter
1042          attributes in favor of global attributes.
1043        * Fix a potential null pointer reference of pmbuf in lpfc_ct.c.
1044        * On reset_lun, issue LUN_RESET as opposed to ABORT_TASK_SET.
1045        * Removed SCSI_REQ_TMO related code.
1046        * Introducing two new defines LPFC_ATTR_R and LPFC_ATTR_RW that do
1047          a module_param, MODULE_PARM_DESC, lpfc_param_show,
1048          [lpfc_param_store] and CLASS_DEVICE_ATTRIBUTE.
1049        * Properly clean up when allocation of a linked BDE fails in the
1050          SCSI queuecommand path.
1051        * Fail SCSI command if dma_map_sg call fails.
1052        * Remove unused macros SWAP_ALWAYS and SWAP_ALWAYS16.
1053        * Reset context2 to 0 on exit in
1054          lpfc_sli_issue_iocb_wait_high_priority() and
1055          lpfc_sli_issue_iocb_wait().
1056        * Arranging lpfc_scsiport.c to follow style of use after
1057          definition. This removes the need for the cruft of forward
1058          declarations. Also removing a redundant #define ScsiResult as it
1059          already available elsewhere.
1060        * Applying "Streamline lpfc error handling" patch from Christoph
1061          Hellwig (hch@infradead.org) with following modifications: fix
1062          mem leaks, remove some misplaced code that need not be there,
1063          print a message on exit (old code prints two (entry/exit)), make
1064          ret values consistent (either 1/0 or SUCCESS/FAILURE), keep all
1065          eh routines in a single file (lpfc_scsiport.c).
1066        * Move contents of lpfc_module_param.h into lpfc_fcp.c.
1067        * Changed sysfs attributes to CLASS_DEVICE_ATTRIBUTES (previously
1068          DEVICE_ATTRIBUTES). They now appear in
1069          /sys/class/scsi_host/hostx (previously in
1070          /sys/bus/pci/drivers/lpfc/devx).
1071        * Removed lpfc_syfs.h and lpfc_sysfs.c.
1072        * Cleanup of config params.  Throttle params have been removed.
1073          max_lun has been removed. max_target is replaced with a #define,
1074          lun_skip is removed.  Remove ipfc config params and related
1075          code.
1076        * Changed DMABUF_t usage to struct lpfc_dmabuf.
1077        * Downsizing iCfgParam structure to include a_string, a_low, a_hi
1078          and a_default values only.
1079        * Free SCSI buf safety memory pool on shutdown to eliminate memory
1080          leak.
1081        * Change lpfc_printf_log to a #define. Also include phba->brd_no
1082          and newline in the print string rather than in the #define.
1083        * Remove code that optionally locates Host Group Pointers in host
1084          memory SLIM since this is no longer needed for PPC64, once
1085          CONFIG_PORT uses HBA's view of its BAR0.
1086        * Removed the forward declarations of the sli functions and
1087          rearranging the code in lpfc_sli.c.
1088        * Removed the preamble functionality from logging.
1089        * Make lpfc_sli_hba_setup() return negative error codes on error
1090          and correct the comment left over in lpfc_fcp.c
1091        * Removed the lpfc_loadtime variable.
1092        * Put a space between all ifs and their open parens '('.
1093        * Change Studly_Caps LPFC_SCSI_BUF_t to struct lpfc_scsi_buf.
1094        * Fixed insmod hang after hardware error.
1095        * Relocated scsi_host alloc to before we enable the interrupt
1096          handler
1097        * Add .tmp_versions directory to Makefile clean target.  This
1098          directory is created in the 2.6.5+ build process (with Red Hat
1099          kernels at least).
1100        * Changing phba->config to kmalloc lpfc_icfgparam and not
1101          *phba->config. This is manifesting itself as a panic in
1102          pci_release_region().
1103        * Fix for firmware download / board reset problem.
1104        * Integrated patch from Christoph Hellwig (hch@infradead.org) to
1105          reorganize and cleanup lpfc_fcp.c
1106        * Don't abort commands immediately when there is an RSCN event to
1107          give driver time to rediscover targets before the midlayer
1108          retries the SCSI commands.
1109
1110Changes from 20040604 to 20040614
1111
1112        * Changed version number to 8.0.4
1113        * Removed lpfc_valid_lun function.
1114        * Added scsi_buf safety pool to address scsi_buf failures in
1115          queuecommand under low memory conditions.  Allocations now come
1116          from kmalloc initially, but if kmalloc fails, the allocation
1117          comes from the safety pool.
1118        * Modified lpfc_slave_alloc to only set the scsi_device->hostdata
1119          pointer if the driver has discovered the target.  This routine
1120          always returns success now as well since no error ever occurs in
1121          the alloc routine.
1122        * Mask only info and warning messages.  Print all error messages
1123          irrespective of mask.
1124        * Removing lpfc_log_chk_msg_disabled()
1125        * Changed lpfc_printf_log to take struct lpfc_hba * directly
1126          instead of a "board number".
1127        * Convert dma_sync_single to pci_dma_sync_single_for_{device/cpu}.
1128        * Implemented new style log messages. The message strings are now
1129          embedded in the call to lpfc_printf_log.
1130        * Decreased FLOGI discovery timeout to 20 seconds.
1131        * On error in lpfc_pci_probe_one() return -1 and not 1.
1132        * Allow for board numbers that are not sequential, paving the way
1133          for hotplug support.
1134        * scsi_add_host() can fail, so wrap it around in an if(). Also
1135          initiate scsi_scan_host() after attaching the sysfs attributes.
1136        * lpfc_release_version is used only in lpfc_ct.c, so move it there
1137          and mark it as static.
1138        * Removed lpfc_sleep_ms and replaced with mdelay or schedule calls
1139          directly
1140        * Removed all (struct list_head *) casts from clkData-related list
1141          handling in list_add, list_del macros.
1142        * Removed EXPORT_SYMBOLs.
1143        * Removed LPFC_MIN_QFULL and lpfc_qthrottle_up.
1144        * Replace LPFCSCSITARGET_t with struct lpfc_target.
1145        * Replace LPFCSCSILUN_t with struct lpfc_lun.
1146        * Remove unused struct declarations (fcPathId and fcRouteId) from
1147          lpfc_scsi.h.
1148        * Rewrite use of FC transport attributes.
1149        * Fix crash when link is lost.  This was due to lpfc_delay_iodone
1150          calling list_del on an object that was never put on a list.
1151        * Remove trailing spaces at the end of all lines.
1152        * Set MAX_FCP_TARGET to 256 from 0xff.  Set MAX_FCP_LUN and
1153          MAX_FCP_CMDS to their decimal equivalents and updated
1154          documentation.
1155
1156Changes from 20040526 to 20040604
1157
1158        * Changed version number to 8.0.3
1159        * Completed sysfs FC transport support.
1160        * Removed unused fields in SCSI LUN and SCSI Target structures:
1161          void *pTargetProto; void *pTargetOSEnv; void *pLunOSEnv;
1162        * Modified list_for_each to list_for_each_entry. Modified
1163          list_for_each_safe to list_for_each_entry_safe.
1164        * Remove lpfc_dfc.h file.
1165        * Changed pHba->phba, pCommand->pcmd
1166        * Changed plogi_ndlp -> plogindlp, pos_tmp->postmp, pRsp->prsp,
1167          pCmd->pcmd
1168        * Changed pText -> ptext
1169        * Changed p_tmp_buff -> ptmpbuff
1170        * Changed pBufList -> pbuflist, pRsp -> prsp, pCmd -> pcmd
1171        * Changed *pos_tmp -> *postmp, *p_mbuf -> *pmbuf
1172        * Following changes are made to the SCSI fast path: Added
1173          DMA_BUF_t member to the lpfc_scsi_buf_t.  This will reduce a
1174          memory allocation in the scsi fast path.  Added check for
1175          targetp == NULL in the scsi fast path.  Increased number of
1176          scatter gather entries in lpfc_scsi_dma_ext to 4 from 3 and
1177          changed the size of lpfc_scsi_dma_ext to 264
1178        * Fixing some missing static lpfc_nportdisc.c.
1179        * Reordered #include lines so that lpfc.h doesn't have to #include
1180          other header files.
1181        * Remove lpfc_get_hba_sym_node_name() as a global EXPORT and make
1182          it static.
1183        * Move struct clk_data definition from lpfc_hw.h to lpfc_sli.h.
1184        * Changed LPFC_IOCBQ_t to struct lpfc_iocbq.
1185        * Changed LPFC_SLI_RING_t to struct lpfc_sli_ring.
1186        * Changed LPFC_NODELIST_t to struct lpfc_nodelist.
1187        * Rearranged lpfc_nportdisc.c by moving state machine array
1188          (lpfc_disc_action) and the one function that uses it,
1189          lpfc_disc_state_machine, to the end of the file, removing the
1190          need for the raft of prototypes at the top.
1191        * Changed LPFC_BINDLIST_t to struct lpfc_bindlist.
1192        * Removed lpfc_issue_ct_rsp(), lpfc_sleep(), lpfc_add_bind(),
1193          lpfc_del_bind(), lpfc_sli_wake_mbox_wait() and
1194          lpfc_sli_issue_mbox_wait().
1195        * Fixed a large number of overly-long lines.
1196        * Fixed some discovery problems: Introduced deferred ndlp removal
1197          when in DSM to avoid panic when in nested DMSs Fix NportId
1198          fffc01 handling to not relogin after LOGO fixed handling of LOGO
1199          on PLOGI issue.
1200        * Changed SLI_CT_REQUEST to lpfc_sli_ct_request.
1201        * Changed NAME_TYPE to struct lpfc_name.
1202        * Changed lpfcCfgParam_t to struct lpfc_cfgparam.
1203        * Changed LPFC_STAT_t to struct lpfc_stats.
1204        * Changed HBAEVT_t to struct lpfc_hba_event.
1205        * Changed Studly_Caps lpfcHBA_t to struct lpfc_hba.
1206        * Removed no longer used tasklet_running flag.
1207        * Removing *PSOME_VAR typedefs and using SOME_VAR* directly.
1208        * Changing .use_clustering to ENABLE_CLUSTERING.
1209        * Modify lpfc_queuecommand to return SCSI_MLQUEUE_HOST_BUSY when
1210          it can't queue a SCSI command.  Also, remove cmnds_in_flight
1211          member of struct lpfcHBA for 2.6 kernels as it was only needed
1212          to determine what to return from queuecommand.
1213        * Change return type of lpfc_evt_iocb_free to void as it doesn't
1214          return anything.
1215        * Remove unused cmnd_retry_list and in_retry members in struct
1216          lpfcHBA.
1217        * Remove some instances of unneeded casting of kmalloc's return in
1218          lpfc_scsiport.c
1219        * Remove lpfc_linux_attach() and lpfc_linux_detach(). Integrate
1220          them into lpfc_probe_one() and lpfc_release_one() respectively.
1221        * Remove lpfc_num_iocbs, lpfc_num_bufs module parameters
1222        * Remove #defines for NUM_NODES, NUM_BUFS and NUM_IOCBS
1223
1224Changes from 20040515 to 20040526
1225
1226        * Changing version number to 8.0.2.
1227        * Including dma-mapping.h as one of the include headers.  Also
1228          rearrange the #include order.
1229        * Make functions static as appropriate.
1230        * queuecommand() will now return SCSI_MLQUEUE_HOST_BUSY instead of
1231          1 to backpressure midlayer.
1232        * Removed function prototypes for lpfc_start_timer() and
1233          lpfc_stop_timer()
1234        * Changed timer support to be inline.  Clk_data is now declared
1235          right next to the corresponding timer_list entry so we don't
1236          have to allocate these clk_data dynamically.
1237        * Add readls after writels to PCI space to flush the writes.
1238        * Fix misspelled word "safety" in function names.
1239        * Fix up comments in lpfc.conf for per HBA parameters to reflect
1240          new implementation.
1241        * Change lpfc_proc_info handler to get the Nodename from
1242          fc_nodename and not fc_portname.
1243        * Fix up some comments and whitespace in lpfc_fcp.c.
1244        * Formatting changes: get rid of leading spaces in code
1245        * Move discovery processing from tasklet to a kernel thread.
1246        * Move ndlp node from unmap list to map list if ADISC completed
1247          successfully.
1248        * Flush all the ELS IOCBs when there is a link event.
1249        * LP9802 qdepth is twice the LP9802DC qdepth.  Delay
1250          elx_sched_init after READ_CONFIG to get max_xri from the
1251          firmware.  Reset ELX_CFG_DFT_HBA_Q_DEPTH to max_xri after
1252          READ_CONFIG
1253        * Fix fc_get_cfg_parm() to be more robust and support embedded hex
1254          values.  The lpfc_param's are now defined as:
1255          lpfc_log_verbose="lpfc:0,lpfc0:0x10,lpfc1:4,lpfc100:0xffff" The
1256          "," delimter does not matter. It can be anything or not exist at
1257          all. ie param = "lpfc:0lpfc0:0x10.lpfc1:4txtlpfc100:0xffff" will
1258          also work.  Additionally the string is treated as case
1259          insensitive.
1260        * Changed all usage of lpfc_find_lun_device() to lpfc_find_lun().
1261        * Removed unnecessary wrappers lpfc_find_lun_device() and
1262          lpfc_tran_find_lun().
1263        * Switch from using internal bus/id/lun to similar data from
1264          scsi_device structure.
1265        * Eliminate one-line function lpfc_find_target()
1266        * Added slave_alloc, slave_destory
1267        * lpfc_scsi_cmd_start can now acquire lun pointer from
1268          scsi_device->hostdata, which is setup in slave_alloc.
1269        * Eliminate unnecessary checking on every cmd just to see if we
1270          are accessing the device the first time.
1271        * Remove assumption in lpfc_reset_lun_handler that a valid
1272          lpfc_scsi_buf is hung off of linux's scsi_cmnd->host_scribble
1273          when our reset is called.
1274
1275Changes from 20040507 to 20040515
1276
1277        * Changed version to 8.0.1
1278        * Fixed crash on driver rmmod after error injection tests and
1279          lpfc_tasklet deadlock.
1280        * Modified lpfc.conf to remove limit on number of support hosts
1281        * Removed HBAAPI 
1282        * Removed duplication of SCSI opcodes from lpfc_fcp.h that are
1283          available in scsi/scsi.h
1284        * Rework module_param usage
1285        * Added MODULE_PARAM_DESC for various module_params
1286        * Removed #define EXPORT_SYMTAB
1287        * Removed #includes of if_arp.h and rtnetlink.h
1288        * Removed string "Open Source" from MODULE_DESC
1289        * Cleanup duplicated string definitions used by MODULE_DESC
1290        * Renamed lpfc_pci_[detect|release] to lpfc_pci_[probe|remove]_one
1291        * Fix formatting of lpfc_driver
1292        * Remove unnecessary memset to 0 of lpfcDRVR
1293        * Attach driver attributes always unless pci_module_init failed
1294        * Remove all one-line wrappers from lpfc_mem.
1295        * Remove lpfc_sysfs_set_[show|store] as it is no longer needed
1296        * Redo lpfc_sysfs_params_[show|store] to one value per attribute rule
1297        * Breakdown lpfc_sysfs_info_show into smaller one value per attribute
1298        * Use device attributes instead of driver attributes where appropriate
1299        * Remove no longer needed EXPORT_SYMBOLs
1300        * Remove some unused code (1600 msg's related)
1301
1302Changes from 20040429 to 20040507
1303
1304        * Change version to 8.0.0
1305        * Fix the number of cmd / rsp ring entries in lpfc_fcp.c to match
1306          the divisions setup in lpfc_hw.h.
1307        * Remove phba->iflag reference.
1308        * Several locking improvements.
1309        * Remove functions lpfc_drvr_init_lock, lpfc_drvr_lock,
1310          lpfc_drvr_unlock and lpfc_hipri_*.
1311        * Remove LPFC_DRVR_LOCK and LPFC_DRVR_UNLOCK macros.
1312        * Make lpfc_info() use lpfc_get_hba_model_desc() instead of
1313          rewriting almost identical code.
1314        * Fix 1 overly long line in each of lpfc_cfgparm.h, lpfc_ftp.c and
1315          lpfc_sli.c.
1316        * Fix build for Red Hat 2.6.3 kernel by #defining MODULE_VERSION
1317          only if it isn't already defined.
1318        * Change elx_sli_issue_mbox_wait to return correct error code to
1319          the caller.
1320        * In some of the els completion routines, after calling
1321          lpfc_elx_chk_latt, driver ignores the return code of the
1322          lpfc_elx_chk_latt. This will prevent the discovery state machine
1323          restarting correctly when there are link events in the middle of
1324          discovery state machine running. Fix this by exiting discovery
1325          state machine if lpfc_els_chk_latt returns a non zero value.
1326        * Removed MAX_LPFC_BRDS from lpfc_diag.h
1327        * Removed unused first_check.
1328        * Remove some unused fields and defines.
1329        * Change lpfc-param names to lpfc_param.
1330        * Add use of MODULE_VERSION macro for 2.6 kernels.
1331        * Shorten length of some of the comment lines to make them more
1332          readable.
1333        * Move FCP_* definitions to their own header file, lpfc_fcp.h.
1334        * Remove unused prototypes from lpfc_crtn.h: fcptst, iptst,
1335          lpfc_DELAYMS.
1336        * Remove duplicated prototypes from lpfc_crtn.h:
1337          lpfc_config_port_prep, lpfc_config_port_post,
1338          lpfc_hba_down_prep.
1339        * Removed some unused export_symbols.
1340        * Install driver files into */drivers/scsi/lpfc instead of
1341          */drivers/scsi.
1342
1343Changes from 20040426 to 20040429
1344
1345        * Declared export symbol lpfc_page_alloc and lpfc_page_free
1346        * Changed lpfc version number to 6.98.3
1347        * Move the definition of MAX_LPFC_BRDS to the only header file
1348          that uses it (lpfc_diag.h).
1349        * Change lpfc_sli_wake_iocb_wait to do a regular wake_up since
1350          lpfc_sli_issue_iocb_wait now sleeps uninterruptible.
1351        * Replace list_for_each() with list_for_each_safe() when a list
1352          element could be deleted.
1353        * Fix IOCB memory leak
1354
1355Changes from 20040416 to 20040426
1356
1357        * Change lpfc_config_port_prep() to interpret word 4 of the DUMP
1358          mbox response as a byte-count
1359        * Add info attribute to sysfs
1360        * Minor formatting (spaces to tabs) cleanup in lpfc_sched.h
1361        * Remove unused log message number 732
1362        * Completing MODULE_PARM -> module_param changes
1363        * Removed unused targetenable module parameter
1364        * Removed locks from lpfc_sli_issue_mbox_wait routine
1365        * Removed code that retry 29,00 check condition
1366        * Removed code that manipulates rspSnsLen.
1367        * Fix use of lun-q-depth config param
1368        * Fix severity inconsistency with log message 249
1369        * Removed lpfc_max_target from lpfc_linux_attach
1370        * Replace references to lpfcDRVR.pHba[] with lpfc_get_phba_by_inst()
1371        * Change lpfc_param to lpfc-param
1372        * Partially removed 32 HBA restriction within driver.  Incorported
1373          lpfc_instcnt, lpfc_instance[], and pHba[] into lpfcDRVR
1374          structure Added routines lpfc_get_phba_by_inst()
1375          lpfc_get_inst_by_phba() lpfc_check_valid_phba()
1376        * Turn on attributes "set" & "params" by default.
1377        * Further formatting/whitespace/line length cleanup on: lpfc_ct.c
1378          lpfc_els.c lpfc_fcp.c lpfc_hbadisc.c lpfc_init.c lpfc_ipport.c
1379          lpfc_mbox.c lpfc_nportdisc.c lpfc_sched.c lpfc_sched.h
1380          lpfc_scsi.h lpfc_scsiport.c lpfc_sli.c and lpfc_sli.h
1381        * Add log message 249 to log any unsupported device addressing
1382          modes encountered.
1383        * Add support for 256 targets and 256 LUNs
1384        * Fixed panic in lpfc_linkdown.
1385        * Removed (struct list_head*) casting in several calls to list_del
1386        * Free irq reservation and kill running timers when insmod or
1387          modprobe are killed via ctrl-c
1388        * Remove drivers/scsi from include path
1389        * Wrap use of log message 311 in macro
1390        * Detect failure return from pci_map_sg call in lpfc_os_prep_io
1391        * Fix use-after-free of IOCB in lpfc_sli_process_sol_iocb which
1392          was causing an Oops on 2.6.5 kernel.
1393        * Cleanup use of several gotos not used for error exit.
1394        * Replace memcpy_toio() and memcpy_toio() with endian-dependent
1395          lpfc_memcpy_to_slim() and lpfc_memcpy_from_slim() so that for
1396          big endian hosts like PPC64, the SLIM is accessed 4 bytes at a
1397          time instead of as a byte-stream.
1398
1399Changes from 20040409 to 20040416
1400
1401        * The scsi_register and scsi_alloc_host OS calls can fail and
1402          return a zero-valued host pointer.  A ctrl-C on 2.6 kernels
1403          during driver load will cause this and the driver to panic.
1404          Fixed this bug.  Also found a bug in the error_x handling with
1405          lpfc_sli_hba_down - it was in the wrong place and the driver
1406          lock was not held, but needed to be (in lpfc_linux_attach) Fixed
1407          both.  Did some minor comment clean up.
1408        * Removed unwanted (void *) castings.
1409        * Replace define of INVALID_PHYS, with kernel 2.6.5's
1410          dma_mapping_error() and add a inline function for earlier
1411          kernels.  Remove lpfc_bad_scatterlist().
1412        * Clean up formatting in hbaapi.h, lpfc.h, lpfc_cfgparm.h,
1413          lpfc_crtn.h, lpfc_ct.c, lpfc_diag.h, lpfc_disc.h, lpfc_els.c,
1414          lpfc_fcp.c, lpfc_hbadisc.c, lpfc_hw.h, lpfc_init.c,
1415          lpfc_ipport.c, lpfc_logmsg.c, lpfc_logmsg.h and lpfc_scsiport.c
1416          - mostly replacing groups of 8 spaces with hard tabs and keeping
1417          lines to 80 column max..
1418        * Removed LPFC_DRVR_LOCK call from lpfc_unblock_requests for 2.4
1419          kernels.  The lpfc_scsi_done routine already unlocks the driver
1420          lock since it expects this lock to be held.
1421        * Removed global lock capabilities from driver lock routines
1422        * Remove SA_INTERRUPT flag from request_irq
1423        * Move dma_addr_t cast inside of getPaddr macro as everywhere
1424          getPaddr is used, the return is cast to dma_addr_t.
1425        * Clean up formatting in lpfc_sli.c and lpfc_sysfs.c - mostly
1426           replacing groups of 8 spaces with hard tabs and keeping lines
1427           to 80 column max.
1428        * Fix build for RHEL 2.1 BOOT kernels by always #including
1429          interrupt.h in lpfc.h.
1430        * Fix RHEL 3 build by #defining EXPORT_SYMTAB.
1431        * Replace sprintf with snprintf in lpfc_proc_info.
1432        * Fix build warnings on 2.6 kernels - remove no longer used calls
1433          to  character device initialization.
1434        * Initial support code for discovery in tasklet conversion.
1435        * Removing char interface and ioctl code.
1436        * Change all elx prefixes to lpfc
1437        * Replace lpfc_write_slim() & lpfc_read_slim() with memcpy_toio(),
1438          memcpy_fromio(), writel() & readl().
1439
1440Changes from 20040402 to 20040409
1441
1442        * Replaced lpfc_read_hbaregs_plus_offset and
1443          lpfc_write_hbaregs_plus_offset functions with readl and writel.
1444        * Get rid of long mdelay's in insmod path
1445        * Changed the way our pci_device_id structures are initialized
1446        * Replace lpfc_read/write_CA/HA/HC/HS with calls to readl() &
1447          writel() directly.
1448        * Increase SLI2_SLIM to 16K Increase cmd / rsp IOCBs accordingly
1449        * Removed lpfc_els_chk_latt from the lpfc_config_post function.
1450          lpfc_els_chk_latt will enable the link event interrupts when
1451          flogi is pending which causes two discovery state machines
1452          running parallelly.
1453        * Add pci_disable_device to unload path.
1454        * Move lpfc_sleep_event from lpfc_fcp.c to lpfc_util_ioctl.c
1455        * Call dma_map_single() & pci_map_single() directly instead of via
1456          macro lpfc_pci_map().  Allow address 0 for PPC64.
1457        * Change sleep to uninterruptible in lpfc_sli_issue_icob_wait
1458          because this function doesn't handle signals.
1459        * Move lpfc_wakeup_event from lpfc_fcp.c to lpfc_ioctl.c
1460        * Remove unneeded #include <linux/netdevice.h>
1461        * Remove unused clock variables lpfc_clkCnt and lpfc_sec_clk.
1462        * Get rid of capitalization of function names.
1463        * Removed lpfc_addr_sprintf.
1464        * Implemented gotos in lpfc_linux_attach for error cases.
1465        * Replace mlist->dma.list = dmp->dma.list; to mlist = dmp.
1466        * Remove functions lpfc_get_OsNameVersion and elx_wakeup. Change
1467          elx_wakeup to wake_up_interruptible
1468        * Add function lpfc_get_os_nameversion and change
1469          lpfc_get_OsNameVersion to lpfc_get_os_nameversion.
1470        * Remove lpfc_get_OsNameVersion
1471        * Change driver name to a consistent lpfc in every visible place.
1472        * Fix build warning: removed unused variable ret in lpfc_fdmi_tmo.
1473        * Remove lpfc_utsname_nodename_check function
1474        * Remove functions lpfc_register_intr and lpfc_unregister_intr
1475        * Fill in owner field in lpfc_ops file_operations struct and
1476          remove now unnecessary open and close entry points.
1477        * Change function name prefixes from elx_ to lpfc_
1478        * Remove special case check for TUR in elx_os_prep_io()
1479        * Renamed elx_scsi.h to lpfc_scsi.h
1480        * Renamed elx_sched.h to lpfc_sched.h
1481        * Renamed elx_mem.h to lpfc_mem.h
1482        * Renamed elx_sli.h to lpfc_sli.h
1483        * Renamed elx_logmsg.h to lpfc_logmsg.h
1484        * Renamed elx.h to lpfc.h
1485        * Renamed elx_sli.c to lpfc_sli.c
1486        * Renamed elx_sched.c to lpfc_sched.c
1487        * Renamed elx_mem.c to lpfc_mem.c
1488        * Renamed elx_logmsg.c to lpfc_logmsg.c
1489        * Renamed lpfcLINUXfcp.c lpfc_fcp.c
1490        * Renamed elx_clock.c to lpfc_clock.c
1491        * Reduce stack usage in lpfc_info().
1492        * Move lpip_stats structure from lpfc_hba.h to lpfc_ip.h.
1493        * Move lpfc_stats and HBAEVT_t structures from lpfc_hba.h to
1494          lpfc.h
1495        * Remove lpfc_hba.h
1496        * Remove duplicate rc definitions from 
1497        * Removed code which used next pointer to store mbox structure.
1498        * Cleaned up list iterations.
1499        * Removed non list manipulation of the next pointers.
1500        * Change list_del()/INIT_LIST_HEAD sequences to list_del_init()
1501        * In ELX_IOCBQ_t: Moved hipri_trigger field to iocb_flag. Combined
1502          hipri_wait_queue and rsp_iocb in union
1503        * Replaced casting from list_head with list_entry macro.
1504        * Added ct_ndlp_context field to the ELX_IOCBQ_t.
1505        * Do not use DMABUf_t list to store ndlp context
1506        * Return 0 from lpfc_process_iotcl_util() when ELX_INITBRDS
1507          succeeds.
1508        * remove elx_os_scsiport.h
1509        * Do not use DMABUf_t list to hold rpi context
1510        * Replace elx_cfg_* names with lpfc_cfg-*
1511        * Moved FCP activity to ring 0.  Moved ELS/CT activity to ring 2.
1512        * Clean up formatting of elx_sli.h (tabs for indents, 80 column
1513          lines).
1514        * Remove unused elxclock declaration in elx_sli.h.
1515        * Since everywhere IOCB_ENTRY is used, the return value is cast,
1516          move the cast into the macro.
1517        * Split ioctls out into separate files
1518
1519Changes from 20040326 to 20040402
1520
1521        * Updated ChangeLog for 20040402 SourceForge drop.
1522        * Use safe list iterator for ndlp list
1523        * Added code to return NLP_STE_FREED_NODE from the discovery
1524          state machine functions if the node is freed from the
1525          function.
1526        * Fixes to DMABUF_t handling
1527        * Fix for load error in discovery
1528        * Remove loop_cnt variable from lpfc_rcv_plogi_unused_node.
1529        * Remove nle. reference.
1530        * Remove support for building 2.4 drivers
1531        * Remove elx_util.h and replace elx_disc.h with lpfc_disc.h
1532        * Implemented the Linux list macros in the discovery code.
1533          Also moved elx_disc.h contents into lpfc_disc.h
1534        * Unused variable cleanup
1535        * Use Linux list macros for DMABUF_t
1536        * Break up ioctls into 3 sections, dfc, util, hbaapi
1537          rearranged code so this could be easily separated into a
1538          differnet module later All 3 are currently turned on by
1539          defines in lpfc_ioctl.c LPFC_DFC_IOCTL, LPFC_UTIL_IOCTL,
1540          LPFC_HBAAPI_IOCTL
1541        * Misc cleanup: some goto's; add comments; clarify function
1542          args
1543        * Added code to use list macro for ELXSCSITARGET_t.
1544        * New list implementation for ELX_MBOXQ_t
1545        * Cleaned up some list_head casting.
1546        * Put IPFC ifdef around two members of struct lpfc_nodelist.
1547        * Cleaned up iocb list using list macros and list_head data
1548          structure.
1549        * lpfc_online() was missing some timer routines that were
1550          started by lpfc_linux_attach().  These routines are now also
1551          started by lpfc_online().  lpfc_offline() only stopped
1552          els_timeout routine.  It now stops all timeout routines
1553          associated with that hba.
1554        * Replace separate next and prev pointers in struct
1555          lpfc_bindlist with list_head type.  In elxHBA_t, replace
1556          fc_nlpbind_start and _end with fc_nlpbind_list and use
1557          list_head macros to access it.
1558        * Fix ulpStatus for aborting I/Os overlaps with newer firmware
1559          ulpStatus values
1560        * Rework params_show/store to be consistent as the other
1561          routines.  Remove generic'ness and rely on set attribute.
1562        * Remove unused log message.
1563        * Collapse elx_crtn.h and prod_crtn.h into lpfc_crtn.h
1564        * Ifdef Scheduler specific routines
1565        * Removed following ununsed ioclt's: ELX_READ_IOCB
1566          ELX_READ_MEMSEG ELX_READ_BINFO ELX_READ_EINVAL ELX_READ_LHBA
1567          ELX_READ_LXHBA ELX_SET ELX_DBG LPFC_TRACE 
1568        * Removed variable fc_dbg_flg
1569        * Fixed a bug where HBA_Q_DEPTH was set incorrectly for
1570          3-digit HBAs.  Also changed can_queue so midlayer will only
1571          send (HBA_Q_DEPTH - 10) cmds.
1572        * Clean up code in the error path, check condition.  Remove
1573          ununsed sense-related fields in lun structure.
1574        * Added code for safety pools for following objects: mbuf/bpl,
1575          mbox, iocb, ndlp, bind
1576        * Wrapped '#include <elx_sched.h>' in '#ifdef USE_SCHEDULER'.
1577        * Fixed 'make clean' target.
1578        * Build now ignores elx_sched.o, and includes lpfc_sysfs.o.
1579        * Wrapped lpfndd.o target in BUILD_IPFC ifdef.
1580        * Removed elx_os.h inclusion in implementation files.
1581        * Removed ELX_OS_IO_t data structure and put data direction
1582          and non scatter/gather physical address into the scsi buffer
1583          structure directly.  Moved DRVR_LOCK, putPaddr, getPaddr
1584          macros and some defines into elx.h since they are required
1585          by the whole driver.
1586        * Migrated following ioctls (debug) ELX_DISPLAY_PCI_ALL
1587          ELX_DEVP ELX_READ_BPLIST ELX_RESET_QDEPTH ELX_STAT.
1588        * Step 1 of attempt to move all Debug ioctls to sysfs.
1589          Implemented the following IOCTLs in sysfs: ELX_WRITE_HC
1590          ELX_WRITE_HS ELX_WRITE_HA ELX_WRITE_CA ELX_READ_HC
1591          ELX_READ_HS ELX_READ_HA ELX_READ_CA ELX_READ_MB ELX_RESET
1592          ELX_READ_HBA ELX_INSTANCE ELX_LIP.  Also introduced
1593          attribute "set" to be used in conjunction with the above
1594          attributes.
1595        * Removed DLINK, enque and deque declarations now that clock
1596          doesn't use them anymore
1597        * Separated install rule so that BUILD_IPFC has to be set when
1598          make is called in order for the install rule to attempt to
1599          copy the lpfndd.o driver.  This change fixes a bug that
1600          occurs because the install rule by default attempted to
1601          install lpfndd.o, whereas the default make rule did not by
1602          default build lpfndd.o.
1603        * Keep track if hbaapi index numbers need to be refreshed.
1604        * Removed prod_os.h from include list.
1605        * Removed LPFC_LOCK and LPFC_UNLOCK macros.  Added OS calls
1606          into elx_os_scsiport.c.  This file is now empty.
1607        * Added spin_lock_irqsave and spin_unlock_irqrestore calls
1608          into code directly and removed LPFC_LOCK_ and _UNLOCK_
1609          macros
1610        * Remove references to "elx_clock.h"
1611        * Added utsname.h to include list.  The previous checkin to
1612          elx_os.h removed its inclusion of utsname.h since there is
1613          precious little in the file.  However, lpfcLINUXfcp.c needs
1614          it and now has it.
1615        * Removed some commented-out code
1616        * Removed elx_lck_t data structure, stray elxDRVR_t type, and
1617          include from file.  No longer used.
1618        * Removed two PCI Sync defines.  Removed includes - not
1619          needed.  Cleaned up macro lines.
1620        * Added two functions from elxLINUXfcp.c.  These functions
1621          were IPFC specific.
1622        * Removed hipri lock abstractions and added OS call into code.
1623          Removed elx_lck_t and added spinlock_t directly. Moved two
1624          IPFC functions into lpfc_ipport.c
1625        * Moved IP specific structures to lpfc_ip.h file.
1626        * lpfc_ipfarp_timeout() uses system timer.  Remove all usages
1627          of old internal clock support.
1628        * Made changes to compile without IPFC support for the default
1629          build.  Added ifdef IPFC for all lpfc_ip.h includes.
1630        * Patched elx_free_scsi_buf
1631        * Removed elx_sched.o from 2.6 dependencies
1632        * Reworked lpfc_pcimap.
1633        * Use Linux swap macros to replace ELX swapping macros
1634          (SWAP_SHORT, SWAP_LONG, SWAP_DATA, SWAP_DATA16,
1635          PCIMEM_SHORT, PCIMEM_LONG, PCIMEM_DATA).
1636        * move in_interrupt() check inside of elx_sleep_ms()
1637        * Moved location of pci.h include.
1638        * Restored elx_lck_t types in elxHBA_t.
1639        * Removed elx_pci_dma_sync call.  Also removed some PCI
1640          defines from elx_hw.h and removed the spinlock_t locks that
1641          are no longer used in elx.h
1642        * elx_iodone() now uses system timer.
1643        * elx_qfull_retry() now uses system timer.
1644        * lpfc_put_buf(), lpfc_ip_xri_timeout() and
1645          lpfc_ip_timeout_handler() now use system timer.
1646        * lpfc_fdmi_tmo() and lpfc_qthrottle_up() now use system
1647          timer.
1648        * Removed num_bufs and num_iocbs configuration parameters.
1649        * Fixed a memory corruption bug. This was caused by a memory
1650          write to ndlp structure from lpfc_cmpl_els_acc function.
1651          This ndlp structure was freed from lpfc_els_unsol_event.
1652        * lpfc_disc_timeout() and lpfc_establish_link_tmo() now use
1653          system timer.  Also update lpfc_els_retry_delay() to do a
1654          single lock release at the end.
1655        * Remove use of PAN (pseudo adapter number).
1656        * Reintroduced usage of the cross compiler for building on
1657          ppc64 to remove build errors that were cropping up when
1658          using the standard gcc compiler.
1659        * Fix no-unlock-before return in lpfc_els_retry_delay which was
1660          causing  a deadlock on insmod in some environments.
1661        * Minor format changes fix up comments
1662        * Create utility clock function elx_start_timer() and
1663          elx_stop_timer().  All timeout routines now use these common
1664          routines.
1665        * Minor formating changes fix up comments
1666        * Minor formatting changes get rid of failover defines for
1667          syntax checking
1668        * Minor formatting changes remove ISCSI defines.
1669        * Fix typo in install target for 2.4 kernels.
1670        * Removed unused elx_scsi_add_timer extern function
1671          declaration.
1672        * Cleanup casting around DMA masks.
1673        * Comment out lpfndd.o modules_install section as lpfndd.o is
1674          not generated if CONFIG_NET_LPFC is not set. Also refer to
1675          BASEINCLUDE only in out of kernel source module builds as it
1676          will not exist otherwise.
1677        * Removed unused malloc counters from lpfcLINUXfcp.c.
1678        * Remove some unnecessary #includes in lpfcLINUXfcp.c
1679        * Remove unncessary #includes in elxLINUXfcp.c
1680        * Minor formatting cleanups in Makefile to avoid some
1681          linewrapping.
1682        * Removed unused elx_mem_pool data structure.
1683        * Remove several unnecessary #includes.
1684        * Moving fix for memory leak in ioctl lip area to sysfs's lip.
1685        * Removed unused elx_dma_handle_t elx_acc_handle_t
1686          FC_MAX_SEGSZ and FC_MAX_POOL.
1687        * Rewrite of Makefile. Fixes breakages with make -j4 during
1688          kernel compile. Does not recompile all files on every
1689          build. Uses the kernel build's definitions of CFLAGS,
1690          MODFLAGS etc. Removed "make rpm" option.
1691        * Removed unused #defines CLOSED, DEAD, OPENED, NORMAL_OPEN
1692          and unneeded #include of elx_sched.h in elx.h.
1693        * Several log message updates
1694        * Add PCI_DEVICE_ID_FIREFLY for LP6000
1695        * Fixed known issues in 20040326: driver crashes on rmmod in
1696          both 2.4 and 2.6 kernels
1697        
1698
1699Changes from 20040319 to 20040326
1700
1701        * Updated ChangeLog for 20040326 SourceForge drop.
1702        * remove lpfc_isr / lpfc_tmr logic fixed up 8 spaces from
1703          previous checkins with tabs
1704        * replace elx_in_intr() with in_interrupt()
1705        * Remove unused messages 1602 and 1603.
1706        * Fix the following issues with log messages: Remove unused
1707          messages 406, 407, 409, 927, 928, 1201, 1202, 1204, 1205, 1206
1708          and 1207.  Create a new message 738 to fix duplicate instances
1709          of 736.
1710        * Removed remaining pci interface abstractions from elxLINUXfcp.c.
1711          Implemented OS calls directly in all remaining files and cleaned
1712          up modules.  Removed prototypes as well.
1713        * Removed following functions/structures elx_mem_dmapool
1714          elx_idx_dmapool elx_size_dmapool elx_kmem_lock dfc_data_alloc
1715          dfc_data_free dfc_mem struct mbuf_info elx_acc_handle_t
1716          data_handle elx_dma_handle_t dma_handle struct elx_memseg
1717          MEMSEG_t
1718        * lpfc_els_timeout_handler() now uses system timer.
1719        * Further cleanup of #ifdef powerpc
1720        * lpfc_scsi_timeout_handler() now uses system timer.
1721        * Replace common driver's own defines for endianness w/ Linux's
1722          __BIG_ENDIAN etc.
1723        * Added #ifdef IPFC for all IPFC specific code.
1724        * lpfc_disc_retry_rptlun() now uses system timer.
1725        * lpfc_npr_timeout() now uses system timer.
1726        * Modified detect code, on insmod, to only wait a max of 2 secs if
1727          link comes up and there are no devices.
1728        * Move remaining message logging functions into
1729          elx_logmsg.c/elx_logmsg.h.
1730        * Added code to clear link attention bit when there is a pending
1731          link event and the memory allocation for read_la mail box
1732          command fails.
1733        * Removed function calls for mapping bar registers and allocating
1734          kernel virtual memory mappings to the mapped bars Removed
1735          prototypes, lpfc_driver_cache_line, and pci_bar1_map rename to
1736          pci_bar2_map.
1737        * Allocate mbox only if the hba_state is in ready state.
1738        * Complete lip support via sysfs. To lip, echo brdnum >
1739          /sys/bus/pci/drivers/lpfc/lip.
1740        * moving sysfs show/store implementations to lpfc_sysfs.c. Also add
1741          support for lip.
1742        * Add files: lpfc_sysfs.c, lpfc_sysfs.h
1743        * move LPFC_DRIVER_NAME and LPFC_MODULE_DESC out of lpfcLINUXfcp.c
1744          to lpfc_version.h, since it is now needed in lpfc_sysfs.c
1745        * elx_mbox_timeout now uses system timer
1746        * Changed lpfc_nodev_timeout, lpfc_els_retry_delay and
1747          lpfc_linkdown_timeout to use the system timer instead of
1748          internal clock support.
1749        * Move remaining message logging functions in elx_util.c to
1750          elx_logmsg.c.
1751        * Remove some unnecessary typecasting.
1752        * Remove log message that is no longer used (was used by
1753          elx_str_atox).
1754        * Replaced DLINK_t and SLINK_t by standard Linux list_head
1755        * Removed deque macro
1756        * Replaced ELX_DLINK_t ans ELX_SLINK_t by Linux struct list_head
1757          (except for clock)
1758        * Removed following functions from code: linux_kmalloc linux_kfree
1759          elx_alloc_bigbuf elx_free_bigbuf
1760        * Removed following abstract functions from the code.  elx_malloc
1761          elx_free elx_ip_get_rcv_buf elx_ip_free_rcv_buf
1762          elx_mem_alloc_dmabuf elx_mem_alloc_dmabufext elx_mem_alloc_dma
1763          elx_mem_alloc_buf lpfc_bufmap
1764        * Removed custom PCI configuration #defines and replaced with
1765          OS-provided #defines. Also added linux/pci.h to *.c files.
1766        * Remove elx_str_ctox.  Replace elx_str_atox with sscanf.
1767        * Many indentation/whitespace fixes.
1768        * Replace elx_str_ctox with isxdigit where it was only used to
1769          check the value of a character.
1770        * Removed following functions from the code.  elx_kmem_free
1771          elx_kmem_alloc elx_kmem_zalloc
1772        * Change use of 2.4 SCSI typedef Scsi_Host_Template to  struct
1773          scsi_host_template for 2.6 kernels.
1774        * Change use of 2.4 SCSI typedefs (Scsi_Device, Scsi_Cmnd,
1775          Scsi_Request) the their real struct names.
1776        * Move 2.6 compatibility irqreturn definitions to lpfc_compat.h.
1777          Protect these definitions from conflicting with similar ones in
1778          later 2.4 kernels.
1779        * Remove unused definitions: LINUX_TGT_t, LINUX_LUN_t,
1780          LINUX_BUF_t, elx_lun_t, SET_ADAPTER_STATUS.
1781        * Convert pci_ calls to linux 2.6 dma_ equivalents.
1782        * Removed unused types: struct buf, struct sc_buf, T_SCSIBUF
1783          typedef.
1784        * Fix Makefile so that 2.4 drivers don't always rebuild all files.
1785        * Remove unused _static_ and fc_lun_t definitions.
1786        * Cleaned up some memory pool implementation code.
1787        * Fix panic with char dev changes. Turns out that 2.6.4 code does
1788          the same in kernel space with the 2.4 interface style
1789          definitions. So remove the new char dev code altogether.
1790        * Remove typecasting from fc_get_cfg_param and consolidate
1791          multiple instances of the parameter switch into a single
1792          instance.
1793        * Use lpfc_is_LC_HBA() macro that tests pcidev->device directly
1794          instead of saving a private copy that undergoes varied shifting
1795          & casting.
1796        * Removed usage of all memory pools.
1797
1798Changes from 20040312 to 20040319
1799        
1800        * Use dev_warn instead of printk for 2.6 kernels
1801        * Correct Iocbq completion routine for 2.6 kernel case
1802        * Change void *pOSCmd to Scsi_Smnd *pCmd
1803        * Change void *pOScmd to struct sk_buff *pCmd
1804        * Remove data directon code.
1805        * Removed memory pool for buf/bpl buffers and use kmalloc/kfree
1806          pci_pool_alloc/free directly.
1807        * Move PPC check for DMA address 0 in scatter-gather list, into
1808          lpfc_compat.h
1809        * Always use pci_unmap_single() instead of pci_unmap_page()
1810        * Clean up the 2.6 vs 2.4 #if blocks.
1811        * Conditionalize Scheduler
1812        * Add a comment to explain a little what the first Makefile
1813          section does.
1814        * Removed lpfc_intr_post
1815        * Sysfs new display format. Also added write functionality. You
1816          can [ echo "0 log_verbose 3" >
1817          /sys/bus/pci/drivers/lpfc/params]. Hex support yet to be added.
1818        * Removed several #ifdef powerpc, including for a discovery issue
1819          in lpfc_ValidLun()
1820        * Change elx_printf_log to use vsprintf.
1821        * Added lpfc_compat.h provides macros to aid compilation in the
1822          Linux 2.4 kernel over various platform architectures.  Initially
1823          support mapping to a DMA address.
1824        * Removed memory pool for nlp/bind buffers and use kmalloc/kfree
1825          directly.
1826        * Removed memory pool for iocb buffers and use kmalloc/kfree
1827          directly.
1828        * Removed memory pool for mailbox buffers and use kmalloc/kfree
1829          directly.
1830        * Cleaned up back and forth casts
1831        * Initial support for sysfs for 2.6 kernel.
1832        * Changed elx_dma_addr_t to dma_addr_t
1833        * Fix a 2.6 kernel check to be >= 2.6.0 instead of > (was missing
1834          2.6.0).
1835        * Remove elx_printf and elx_str_sprintf. Replace elx_print with
1836          printk.
1837        * Replace elx_printf with printk.
1838        * Replace elx_str_sprintf with sprintf.
1839        * Removed the mem_lock, its prototype, function, macro, and
1840          iflags.
1841        * Use kmalloc/kfree for ELX_SCSI_BUF_t
1842        * Use linux pci_pools for SCSI_DMA_EXT
1843        * Use linux pci_pools for BPLs.
1844        * Minor cleanup of DFC args for PPC64.
1845        * Several small indentation cleanups.
1846        * New Linux 2.6 style of char device registration.
1847        * Migrated members of LPFCHBA_t and LINUX_HBA_t into elxHBA_t
1848        * Use strcpy, strncmp, isdigit, strlen instead of abstractions
1849        * Cleanup of driver_template.
1850        * Facilitate compile time turn on/off of lpfc_network_on.
1851        * Split large source files into smaller, better named ones.
1852
1853Changes from 2.10a to 20040312
1854
1855        * Fix build for 2.4 kernels
1856        * Move driver version macros into lpfc_version.h file.
1857        * Fixed data miscompare with LIP.
1858        * Removed elx_sli, elx_ioc, elx_disc, elx_sch routines,
1859          prototypes, and reference points.
1860        * Correct the space insertions with hardtabs
1861        * Remove routine call pointers in ELX_SLI_INIT_t struct.
1862        * Removed module locks except for drvr, mem, and clock.
1863        * Removed unused module locks from sourcebase. Kept drvr_lock,
1864          mem_lock, and clock_lock.
1865        * Change NULL to 0
1866
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