changelog.lpfc

linux 内核源代码

Known issues :
	* Please read the associated RELEASE-NOTES file !!!
	* This source release intended for upstream kernel releases only!

Changes from 20050323 to 20050413

	* Changed version number to 8.0.28
	* Fixed build warning for 2.6.12-rc2 kernels: mempool_alloc now
	  requires a function which takes an unsigned int for gfp_flags.
	* Removed pci dma sync calls to coherent/consistent pci memory.
	* Merged patch from Christoph Hellwig <[e-mail]>: split helpers
	  for fabric and nport logins out of lpfc_cmpl_els_flogi.
	* Removed sysfs attributes that are used to dump the various
	  discovery lists.
	* Fix for issue where not all luns are seen.  Search all lists
	  other than unmap list in lpfc_find_target().  Otherwise INQUIRY
	  to luns on nodes in NPR or other relevant states (PLOGI,
	  PRLI...) are errored back and scan() terminates.
	* Removed FC_TRANSPORT_PATCHESxxx defines.  They're in 2.6.12-rc1.
	* Compare return value of lpfc_scsi_tgt_reset against SCSI
	  midlayer codes SUCCESS/FAILED which that function returns rather
	  than SLI return code.
	* Removed extraneous calls to lpfc_sli_next_iotag which should
	  only be called from lpfc_sli_submit_iocb.  Also make
	  lpfc_sli_next_iotag static.
	* Added PCI ID for LP10000-S.
	* Changes in lpfc_abort_handler(): Return SUCCESS if we did not
	  find command in both TX and TX completion queues.  Return ERROR
	  if we timed out waiting for command to complete after abort was
	  issued.
	* Zero-out response sense length in lpfc_scsi_prep_cmnd to prevent
	  interpretation of stale sense length when the command completes
	  - was causing spurious 0710 messages.
	* Moved clearing of host_scribble inside host_lock in IO
	  completion path.
	* Fixed a bunch of mixed tab/space indentation.
	* Allow hex format numbers in sysfs attribute setting.  Fix
	  application hang when invalid numbers are used in sysfs
	  settings.
	* Removed extra iotag allocation by lpfc_abort_handler.
	* Clear host_scribble in the scsi_cmnd structure when failing in
	  queuecommand.
	* Changed logic at top of lpfc_abort_handler so that if the
	  command's host_scibble field is NULL, return SUCCESS because the
	  driver has already returned the command to the midlayer.

Changes from 20050308 to 20050323

	* Changed version number to 8.0.27
	* Changed a few lines from patch submitted by Christoph Hellwig
	  (3/19). MAILBOX_WSIZE * (uint32_t) is replaced with an
	  equivalent MAILBOX_CMDSIZE macro.
	* Merged patch from Christoph Hellwig (3/19): some misc patches
	  against the latest drivers:
	  - stop using volatile.  if you need special ordering use memory
	    barriers but that doesn't seem to be the case here
	  - switch lpfc_sli_pcimem_bcopy to take void * arguments.
	  - remove typecast for constants - a U postfix marks them
	    unsigned int in C
	  - add a MAILBOX_CMD_SIZE macro, as most users of
	    MAILBOX_CMD_WSIZE didn't really want the word count
	  - kill struct lpfc_scsi_dma_buf and embedded the two members
	    directly in struct lpfc_scsi_buf
	  - don't call dma_sync function on allocations from
	    pci_pool_alloc - it's only for streaming mappings (pci_map_*)
	* Merged patch from Christoph Hellwig (3/19) - nlp_failMask isn't
	  ever used by the driver, just reported to userspace (and that in
	  a multi-value file which is against the sysfs guidelines).
	* Change pci_module_init to pci_register_module() with appropriate
	  ifdefs.
	* Added #include <linux/dma-mapping.h> as required by the DMA
	  32bit and 64bit defines on some archs.
	* Merged patch from Christoph Hellwig (03/19) - fix initialization
	  order - scsi_add_host must happen last from scsi POV. Also some
	  minor style/comment fixups.
	* Fixed use of TRANSPORT_PATCHES_V2 by changing to
	  FC_TRANSPORT_PATCHES_V2.

Changes from 20050223 to 20050308

	* Changed version number to 8.0.26
	* Revise TRANSPORT_PATCHES_V2 so that lpfc_target is removed and
	  rport data is used instead. Removed device_queue_hash[].
	* Changed RW attributes of scan_down, max_luns and fcp_bind_method
	  to R only.
	* Fixed RSCN handling during initial link initialization.
	* Fixed issue with receiving PLOGI handling when node is on NPR
	  list and marked for ADISC.
	* Fixed RSCN timeout issues.
	* Reduced severity of "SCSI layer issued abort device" message to
	  KERN_WARNING.
	* Feedback from Christoph Hellwig (on 2/5) - In the LPFC_EVT_SCAN
	  case the caller already has the target ID handly, so pass that
	  one in evt_arg1.
	* Fix compile warning/resultant panic in
	  lpfc_register_remote_port().

Changes from 20050215 to 20050223

	* Changed version number to 8.0.25
	* Add appropriate comments to lpfc_sli.c.
	* Use DMA_64BIT_MASK and DMA_32BIT_MASK defines instead of
	  0xffffffffffffffffULL & 0xffffffffULL respectively.  Use pci
	  equivalents instead of dma_set_mask and also modify condition
	  clause to actually exit on error condition.
	* Restart els timeout handler only if txcmplq_cnt. On submission,
	  mod_timer the els_tmofunc.  This prevents the worker thread from
	  waking up the els_tmo handler un-necessarily.  The thread was
	  being woken up even when there were no pending els commands.
	* Added new typedefs for abort and reset functions.
	* Collapsed lpfc_sli_abort_iocb_xxx into a single function.
	* Collapsed lpfc_sli_sum_iocb_xxx into a single function.
	* Removed TXQ from all abort and reset handlers since it is never
	  used.
	* Fixed Oops panic in 8.0.23 (reported on SourceForge).  The
	  driver was not handling LPFC_IO_POLL cases correctly in
	  fast_ring_event and was setting the tgt_reset timeout to 0 in
	  lpfc_reset_bus_handler.  This 0 timeout would not allow the FW
	  to timeout ABTS's on bad targets and allow the driver to have an
	  iocb on two lists.  Also split the lpfc_sli_ringtxcmpl_get
	  function into two routines to match the fast and slow completion
	  semantics - ELS completions worked for the wrong reasons.  Also
	  provided new log message number - had two 0326 entries.
	* Removed unused #define LPFC_SCSI_INITIAL_BPL_SIZE.
	* Removed unused struct lpfc_node_farp_pend definition.
	* Removed unused #define LPFC_SLIM2_PAGE_AREA.
	* Changed zeros used as pointers to NULL.
	* Removed unneeded braces around single line in lpfc_do_work.
	* Close humongous memory leak in lpfc_sli.c - driver was losing 13
	  iocbq structures per LIP.
	* Removed last of GFP_ATOMIC allocations.
	* Locks are not taken outside of nportdisc, hbadisc, els and most
	  of the init, sli, mbox and ct groups of functions
	* Fix comment for lpfc_sli_iocb_cmd_type to fit within 80 columns.
	* Replaced wait_event() with wait_event_interruptible().
	  wait_event() puts the woker thread in an UNINTERRUPTIBLE state
	  causing it to figure in load average calculations. Also add a
	  BUG_ON to the ret code of wait_event_interruptible() since the
	  premise is that the worker thread is signal-immune.

Changes from 20050208 to 20050215

	* Changed version number to 8.0.24
	* Fixed a memory leak of iocbq structure.  For ELS solicited iocbs
	  sli layer now frees the response iocbs after processing it.
	* Closed large memory leak -- we were losing 13 iocbq structures
	  per LIP.
	* Changing EIO and ENOMEM to -EIO and -ENOMEM respectively.
	* Cleanup of lpfc_sli_iocb_cmd_type array and typing of iocb type.
	* Implemented Christoph Hellwig's feedback from 02/05: Remove
	  macros putLunHigh, putLunLow. Use lpfc_put_lun() inline instead.
	* Integrated Christoph Hellwig's feedback from 02/05: Instead of
	  cpu_to_be32(), use swab16((uint16_t)lun). This is the same as
	  "swab16() on LE" and "<<16 on BE".
	* Added updates for revised FC remote port patch (dev_loss_tmo
	  moved to rport, hostdata renamed dd_data, add fc_remote_host()
	  on shutdown).
	* Removed unnecessary function prototype.
	* Added code to prevent waking up worker thread after the exit of
	  worker thread.  Fixes panic seen with insmod/rmmod testing with
	  70 disks.
	* Integrated Christoph Hellwig's patch from 1/30: Make some
	  variables/code static (namely lpfcAlpaArray and
	  process_nodev_timeout()).
	* Integrated Christoph Hellwig's patch from 1/30: Use
	  switch...case instead of if...else if...else if while decoding
	  JDEC id.

Changes from 20050201 to 20050208

	* Changed version number to 8.0.23
	* Make lpfc_work_done, lpfc_get_scsi_buf,
	  lpfc_mbx_process_link_up, lpfc_mbx_issue_link_down and
	  lpfc_sli_chipset_init static.
	* Cleaned up references to list_head->next field in the driver.
	* Replaced lpfc_discq_post_event with lpfc_workq_post_event.
	* Implmented Christoph Hellwig's review from 2/5: Check for return
	  values of kmalloc.
	* Integrated Christoph Hellwig's patch from 1/30: Protecting
	  scan_tmo and friends in !FC_TRANSPORT_PATCHES_V2 &&
	  !USE_SCAN_TARGET.
	* Integrated Christoph Hellwig's patch from 1/30: Some fixes in
	  the evt handling area.
	* Integrated Christoph Hellwig's patch from 1/30: Remove usage of
	  intr_inited variable. The interrupt initilization from OS side
	  now happens in lpfc_probe_one().
	* Integrated Christoph Hellwig's patch from 1/30: remove shim
	  lpfc_alloc_transport_attr - remove shim lpfc_alloc_shost_attrs -
	  remove shim lpfc_scsi_host_init - allocate phba mem in scsi's
	  hostdata readjust code so that they are no use after free's
	  (don't use after scsi_host_put) - make lpfc_alloc_sysfs_attr
	  return errors
	* Fixed panic in lpfc_probe_one(). Do not delete in a list
	  iterator that is not safe.
	* Clean up fast lookup array of the fcp_ring when aborting iocbs.
	* Following timeout handlers moved to the lpfc worker thread:
	  lpfc_disc_timeout, lpfc_els_timeout, lpfc_mbox, lpfc_fdmi_tmo,
	  lpfc_nodev_timeout, lpfc_els_retry_delay.
	* Removed unused NLP_NS_NODE #define.
	* Integrated Christoph Hellwig's patch from 1/30: remove unused
	  lpfc_hba_list; remove unused lpfc_rdrev_wd30; remove
	  lpfc_get_brd_no and use Linux provided IDR.
	* Changed board reset procedure so that lpfc_sli_send_reset()
	  writes the INITFF bit and leaves lpfc_sli_brdreset() to clear
	  the bit.
	* Removed outfcpio sysfs device attribute.
	* VPD changes: 1) Modify driver to use the model name and
	  description from the VPD data if it exists 2) Rework use of DUMP
	  mailbox command to support HBAs with 256 bytes of SLIM.
	* Fixed compile error for implicit definition of struct
	  scsi_target

Changes from 20050124 to 20050201

	* Changed version number to 8.0.22
	* Moved discovery timeout handler to worker thread. There are
	  function calls in this function which are not safe to call from
	  HW interrupt context.
	* Removed free_irq from the error path of HBA initialization.
	  This will fix the free of uninitialised IRQ when config_port
	  fails.
	* Make sure function which processes unsolicited IOCBs on ELS ring
	  still is called with the lock held.
	* Clear LA bit from work_ha when we are not supposed to handle LA.
	* Fix double locking bug in the error handling part of
	  lpfc_mbx_cmpl_read_la.
	* Implemented fast IOCB processing for FCP ring.
	* Since mboxes are now unconditionally allocated outside of the
	  lock, free them in cases where they are not used.
	* Moved out a couple of GFP_ATOMICs in lpfc_disc_timeout, to
	  before locks so that they can GFP_KERNEL instead. Also cleaned
	  up code.
	* Collapsed interrupt handling code into one function.
	* Removed event posting and handling of solicited and unsolicited
	  iocbs.
	* Remove ELS ring handling leftovers from the lpfc_sli_inter().
	* ELS ring (any slow ring) moved from the lpfc_sli_inter() into a
	  worker thread.  Link Attention, Mbox Attention, and Error
	  Attention, as well as slow rings' attention is passed to the
	  worker thread via worker thread copy of Host Attention
	  register. Corresponding events are removed from the event queue
	  handling.
	* Add entries to hba structure to delegate some functionality from
	  the lpfc_sli_inter() to a worker thread.
	* Reduced used of GFP_ATOMIC for memory allocations.
	* Moved locks deeper in order to change GFP_ATOMIC to GFP_KERNEL.
	* IOCB initialization fix for Raw IO.
	* Removed qcmdcnt, iodonecnt, errcnt from lpfc_target and from
	  driver.
	* Added call to lpfc_els_abort in lpfc_free_node.  Modified
	  lpfc_els_abort to reset txq and txcmplq iterator after a
	  iocb_cmpl call.
	* Fixed a use after free issue in lpfc_init.c.
	* Defined default mailbox completion routine and removed code in
	  the sli layer which checks the mbox_cmpl == 0 to free mail box
	  resources.
	* In lpfc_workq_post_event, clean up comment formatting and remove
	  unneeded cast of kmalloc's return.
	* Removed loop which calls fc_remote_port_unblock and
	  fc_remote_port_delete for every target as this same effect is
	  accomplished by the scsi_remove_host call.
	* Minor cleanup of header files.  Stop header files including
	  other header files.  Removed sentinels which hide multiple
	  inclusions.  Removed unneeded #include directives.
	* Fixed memory leaks in mailbox error paths.
	* Moved lock from around of lpfc_work_done to lpfc_work_done
	  itself.
	* Removed typedef for LPFC_WORK_EVT_t and left just struct
	  lpfc_work_evt to comply with linux_scsi review coding style.
	* Fixed some trailing whitespaces, spaces used for indentation and
	  ill-formatting multiline comments.
	* Bug fix for Raw IO errors.  Reuse of IOCBs now mandates setting