Contains the following changes:
- Force vport to send LOGO to fabric controller when deleting vport
- Fixed driver failing to register login when a PLOGI is received
- Fixes for FIP discovery
- Added stricter checks for FCF addressing mode
- Added code to send only FLOGI, FDISC and LOGO to Fabric controller as FIP
- Fixed handling of LOGO from Fabric port
- Fixed consecutive link up events skipped link_down processing
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Contains the following changes
- Set the CT field of FDISC to 3
- Fixed over allocation of SCSI buffers on SLI4
- Removed unused jump table entries
- Increase LPFC_WQE_DEF_COUNT to 256
- Updated FDISC context to VPI
- Fixed immediate SCSI command for LUN reset translation to WQE
- Extended mailbox handling to allow MBX_POLL commands in between async
  MBQ commands
- Fixed SID used for FDISC
- Fix crash when accessing ctlregs from sysfs for SLI4 HBAs
- Fix SLI4 firmware version not being saved or displayed correctly
- Expand CQID field in WQE structure to 16 bits
- Fix post header template mailbox command timing out
- Removed FCoE PCI device ID 0x0705
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Miscellaneous Changes:
- Convert from SLI2_ACTIVE flag to more correct SLI_ACTIVE (generic) flag
- Reposition log verbose messaging definitions
- Update naming for vpi object name from vport slang name
- Handle deferred error attention condition
- Add 10G link support
- Small bug fixup
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Update of copyrights on modified files
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

SLI4 supports both FC and FCOE, with some extended topology objects.
This patch adss support for the objects, and updates the disovery
engines for their use.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The mailbox commands themselves are the same, or very similar to
their SLI3 counterparts. This patch genericizes mailbox command
handling and adds support for the new SLI4 mailbox queue.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Adds support for the new queues in the SLI-4 interface.  There are :
- Work Queues - host-to-adapter for fast-path traffic
- Mailbox Queues - host-to-adapter for control (slow-path)
- Buffer Queues - host-to-adapter for posting buffers for async receive
- Completion Queues - adapter-to-host for posting async events,
       completions for fast or slow patch work, receipt of async
       receive traffic
- Event Queues - tied to MSI-X vectors, binds completion queues with
       interrupts

These patches add the all the support code to tie into command submission
and response paths, updates the interrupt handling, etc.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Adds new hardware and interface definitions.

Adds new interface routines - utilizing the reorganized layout of the
driver. Adds SLI-4 specific functions for attachment, initialization,
teardown, etc.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Preps the organization of the driver so that the bottom half, which
interacts with the hardware, can share common code sequences for
attachment, detachment, initialization, teardown, etc with new hardware.

For very common code sections, which become specific to the interface
type, the driver uses an indirect function call. The function is set at
initialization. For less common sections, such as initialization, the
driver looks at the interface type and calls the routines relative to
the interface.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

8.3.1 Fixes/Changes :

- Fix incorrect byte-swapping on word 4 of IOCB (data length) which
  caused LUNs to not be discovered on big-endian (e.g. PPC)

- Remove a bad cast of MBslimaddr which loses the __iomem (sparse)

- Make lpfc_debugfs_mask_disc_trc static (sparse)

- Correct misspelled word BlockGuard in lpfc_logmsg.h comment

- Replaced repeated code segment for canceling IOCBs from a list with
  a function call, lpfc_sli_cancel_iocbs().

- Increased HBQ buffers to support 40KB SSC sequences.

- Added sysfs interface to update speed and topology parameter without
  link bounce.

- Fixed bug with sysfs fc_host WWNs not being updated after changing
  the WWNs.

- Check if the active mailbox is NULL in the beginning of the mailbox
  timeout handler - fixes panic in the mailbox timeout handler while
  running IO stress test

- Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect
  reference to phba through vport

- Removed de-reference of scsi device after call to scsi_done() to fix
  panic in scsi completion path while accessing scsi device after
  scsi_done is called.

- Fixed "Nodelist not empty" message when unloading the driver after
  target reboot test

- Added LP2105 HBA model description

- Added code to print all 16 words of unrecognized ASYNC events

- Fixed memory leak in vport create + delete loop

- Added support for handling dual error bit from HBA

- Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb

- Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node

- Take NULL termintator into account when calculating available buffer space
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

- (better, more, bigger ...) then -> (...) than
Signed-off-by: NFrederik Schwarzer <schwarzerf@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Add SCSI data path, error handling, and debugfs code to complete
BlockGuard support.
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

- Fix mailbox buffer leak on dump mailbox completion

- Fix mbuf leak in lpfc_pci_probe_one() SLI-2 mode error path

- Don't allocate HBQs in interrupt context

- Use correct size for FCP response buffer so that all available sense
  data is copied

- Fix jiffies calculation to prevent crash when collecting statistical
  data
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Per the recent discussions at the Linux Plumbers Conference, when
enabling MSI or MSI-X, generate a test interrupt to verify the
interrupt routing is working properly.  If the test interrupt fails,
fall back to MSI first, and if that fails as well, to INTx.  If the
interrupt test fails with INTx, log an error and fail the PCI probe.

Also changed the use of spin_(lock|unlock) to the _irq(save|restore)
variants in the interrupt handlers because with multi-message MSI-X,
both interrupt handlers can now run in parallel.
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

- Avoid polling HBA Error Attention when HBA's PCI channel is offline
  due to PCI EEH

- Fix handling of RSCN with non-zero event qualifiers

- Remove unnecessary sleeps during HBA initialization which slow down
  driver load

- Fix internal and external loopback on FCoE HBAs

- Fix incorrect decrement of cmd_pending count in lpfc_queuecomand
  error path

- Fix reporting of port busy events to management application

- Rename lpfc_adjust_queue_depth() to lpfc_rampdown_queue_depth() for
  consistency with its partner lpfc_rampup_queue_depth()

- Delete redundant lpfc_cmd->start_time = jiffies assignment in
  lpfc_queuecommand()

- Fix handling for ELS, mailbox and heartbeat time outs in the worker
  thread by removing unnecessary checking of the work_port_events
  flags.

- Fix NULL pointer dereference in lpfc_prep_els_iocb

- In lpfc_device_recov_npr_node(), move clearing of NLP_NPR_2B_DISC
  flag after call to lpfc_cancel_retry_delay_tmo() to keep
  targets-in-discovery count correct

- Remove lpfc_probe_one()'s call to scsi_scan_host() which could cause
  concurrent SCSI scans to step on each other
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The phba hbq_get address was setup before the HBA reported support for
Interrupt Enable Block (INB).  This caused loopback tests to fail
after all HBQs had been used once.  Moved setting of hba_get until
after config port mailbox command completes.
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Rework RSCN netlink event to send entire RSCN payload

Also replaces (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX) with
LPFC_NL_VENDOR_ID
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Added support for new sysfs attributes: lpfc_stat_data_ctrl and
lpfc_max_scsicmpl_time. The attributes control statistical reporting
of io load.

Added support for new fc vendor events for error reporting.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Add support for MSI-X Multi-Message interrupts. We use different vectors
for fast-path interrupts (i/o) and slow-patch interrupts (discovery, etc).
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Add support for PCI-EEH permanent-disabling a device via lpfc_pci_remove_one()
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Miscellaneous Fixes:
- Fix the wrong variable name used for checking node active usage status
- Fix numerous duplicate log message numbers
- Fix change KERN_WARNING messages to KERN_INFO.
- Stop sending erroneous LOGO to fabric after vport is already terminated
- Fix HBQ allocates that were kalloc'ing w/ GFP_KERNEL while holding a lock.
- Fix gcc 4.3.2 compiler warnings and a sparse warning
- Fix bugs in handling unsolicited ct event queue
- Reorder some of the initial link up checks, to remove odd VPI states.
- Correct poor VPI handling
- Add debug messages
- Expand Update_CFG mailbox definition
- Fix handling of VPD data offsets
- Reorder loopback flags
- convert to use offsetof()
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Update driver for new SLI-3 features:
- interrupt enhancements
- lose adapter doorbell writes
- inlining support for FCP_Ixx cmds
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

[jejb: fixed up a ton of missed conversions.

 All of you are on notice this has happened, driver trees will now
 need to be rebased]
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Cc: SCSI List <linux-scsi@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Miscellaneous Fixes:
- Fix bug in mbox sysfs interface that locked in EAGAIN if discovery stalled.
- Fix missing error message when npiv and loop are true when link up occurs.
- Fix panic in lpfc_scsi_cmd_iocb_cmpl: scsi_buf was NULL, but created
  race conditions with other code paths.
- Fix error in sysfs mailbox structure that didn't rezero on next use.
- Add missing mempool_free() to attachment failure path
- Fix missing put of ndlp structure during driver unload.
- Fix applications unable to send mailbox commands during discovery.
- Remove unused argument (type) from function lpfc_post_buffer() API
- Fix vport name is not shown after hbacmd vportcreate.
- Remove repeated code statements.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Rework of the worker thread to make it more efficient.
Make a finer-grain notfication of pending work so less time is
spent checking conditions. Also made other general cleanups.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Miscellaneous Fixes
- Allow WRITE_VPARAM command when the virtual port is in a stopped state
- Fixed handling of our queue depth max that was unconditionally raising
  the depth on all vports, rather than just the vport affected.
- Fix race in interrupt handler for mailbox processing that did not take
  out the host lock.
- Removed unused functions: find_node, findnode_rpi, and fabric_abort_flogi
- Correct misspelled word unsolicited in message 0146
- Correct HW-error 5 handling - it should not reset the adapter
- Correct handling of IOCBs, which did not null out our pCmd field before
  invoking the midlayer io done function.
- Changed our maximum supported target id to 4096
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

PCI Parity and EEH handling Fixes:
- Under a PCI Data Parity Error, remove a completion routine callback that
  was on a command that we had already failed and released.
- Under PCI parity error, we were not reinstalling the interrupt handler
  in the slot_reset callback, so we never became functional again.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Multiple Discovery Fixes:
- Fix race on discovery due to link events coinciding with vport_delete.
- Use NLP_FABRIC state to filter out switch-based pseudo initiators that
   reuse the same WWNs.
- Correct erroneous setting of DID=0 in lpfc_matchdid()
- Correct extra reference count that was in the lookup path for the
  remoteid from an unsolicited ELS.
- Correct double-free bug in els abort path.
- Correct FDMI server discovery logic for switch that return a WWN of 0.
- Fix bugs in ndlp mgmt when a node changes address
- Correct bug that did not delete RSCNs for vports upon link transitions
- Fix "0216 Link event during NS query" error which pops up when vports
  are swapped to different switch ports.
- Add sanity checks on ndlp structures
- Fix devloss log message to dump WWN correctly
- Hold off mgmt commands that were interferring with discovery mailbox cmds
- Remove unnecessary FC_ESTABLISH_LINK logic.
- Correct some race conditions in the worker thread, resulting in devloss:
  - Clear the work_port_events field before handling the work port events
  - Clear the deferred ring event before handling a deferred ring event
  - Hold the hba lock when waking up the work thread
  - Send an acc for the rscn even when we aren't going to handle it
- Fix locking behavior that was not properly protecting the ACTIVE flag,
  thus allowing mailbox command order to shift.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Commit 3163f725 introduced locking in
lpfc_sli_hbqbuf_fill_hbqs, but missed unlocking on one exit.
Reported-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Acked-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Fix buffer leaks:
- HBQ dma buffer leak at dma_pool_destroy when unloading driver
- Fix missing buffer free in slow ring buffer handling
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Miscellaneous discovery fixes:
- Flush RSCN buffers on vports when reseting HBA.
- Fix incorrect FLOGI after vport reg failed
- Fix a potential fabric ELS race condition
- Fix handling of failed PLOGI command under high lip rates
- Fix FDISC handling
- Fix debug logging for npiv handling
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Miscellaneous fixes:
- Fix ERRATT flag which was overlapping
- Allow RESTART mbx commands through when stopped.
- Accept incoming PLOGI when connected to an N_Port.
- Fix NPort to NPort pt2pt problems: ADISC and reg_vpi issues
- Fix vport unloading error that erroneously cleaned up RSCN buffers
- Fix memory leak during repeated unloads - in mbox handling
- Fix link bounce vs FLOGI race conditions
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Rework misplaced reference taking on node structure
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Fix Drivers Unsolicited CT command handling - we did not handle multiframe
  sequences well.
Fix error due to delay in replenishing buffers for unsolicited data.
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Miscellaneous Fixes:
- Fix a couple of sparse complaints
- Reset the FCP recovery flag when the node is not a FCP2 device.
- Speed up offline prep delays
- Fixed a memory leak in lpfc_mem_alloc failure path
- Fixed external loopback test.
- Fixed error code returned from the driver when HBA is over heated.
- Correct Max NPIV vport to limits read from adapter
- Add missing locks around fc_flag and FC_NEEDS_REG_VPI
- Add missing hba ids for device identification
- Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands
- Changed all temperature event messages from warning to error
- Fix reporting of link speed when link is down
- Added support for MBX_WRITE_WWN mailbox command
- Change del_timer_sync() in ISR to del_timer() in interrupt handler
- Correct instances of beXX_to_cpu() that should be cpu_to_beXX()
- Perform target flush before releasing node references on module unload
- Avoid bogus devloss_tmo messages when driver unloads
- Fix panic when HBA generates ERATT interupt
- Fix mbox race condition and a workaround on back-to-back mailbox commands
- Force NPIV off for pt2pt mode between 2 NPorts
- Stop worker thread before removing fc_host.
- Fix up discovery timeout error case due to missing clear_la
- Tighten mailbox polling code to speed up detection of fast completions
- Only allow DUMP_MEMORY if adapter offline due to overtemp errors
- Added extended error information to the log messages in chip init.
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Add parameters to enable and disable heartbeat and hba resets
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Miscellaneous Discovery/ELS Fixes:
- Delay free's of ELS requests if adapter reject conditions
- Fix concurrent PLOGI vs ADISC state handling
- Add retry mechanism for GFF_ID
- Correct some illegal state transitions around RSCN timeouts
- Fix missing return in FAN handling
Signed-off-by: NJames Smart <James.Smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>