percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (69 commits)
[SCSI] scsi_transport_fc: Fix synchronization issue while deleting vport
[SCSI] bfa: Update the driver version to 2.1.2.1.
[SCSI] bfa: Remove unused header files and did some cleanup.
[SCSI] bfa: Handle SCSI IO underrun case.
[SCSI] bfa: FCS and include file changes.
[SCSI] bfa: Modified the portstats get/clear logic
[SCSI] bfa: Replace bfa_get_attr() with specific APIs
[SCSI] bfa: New portlog entries for events (FIP/FLOGI/FDISC/LOGO).
[SCSI] bfa: Rename pport to fcport in BFA FCS.
[SCSI] bfa: IOC fixes, check for IOC down condition.
[SCSI] bfa: In MSIX mode, ignore spurious RME interrupts when FCoE ports are in FW mismatch state.
[SCSI] bfa: Fix Command Queue (CPE) full condition check and ack CPE interrupt.
[SCSI] bfa: IOC recovery fix in fcmode.
[SCSI] bfa: AEN and byte alignment fixes.
[SCSI] bfa: Introduce a link notification state machine.
[SCSI] bfa: Added firmware save clear feature for BFA driver.
[SCSI] bfa: FCS authentication related changes.
[SCSI] bfa: PCI VPD, FIP and include file changes.
[SCSI] bfa: Fix to copy fpma MAC when requested by user space application.
[SCSI] bfa: RPORT state machine: direct attach mode fix.
...
- Added round robin FCF failover on initial or FCF rediscovery FLOGI failure.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
- Prevent Vport discovery after reg_new_vport completes when physical
logged in using FDISC.
- Remove fast FCF failover fabric name matching. Allow failover to FCFs
connected to different fabrics.
- Added fast FCF failover in response to FCF DEAD event on current
FCF record.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
- Clear LPFC_DRIVER_ABORTED on FCP command completion.
- Clear exchange busy flag when I/O is aborted and found on aborted list.
- Free sglq when XRI_ABORTED event is processed before release of IOCB.
- Only process iocb as aborted when LPFC_DRIVER_ABORTED is set.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
- Add NULL checks to the pointers for the config_async mailbox
and dump_wakeup_params mailbox.
- Add code to check return value of lpfc_read_sparams everywhere
and handle failures appropriately.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
- Use the hbalock when changing the fc_flag.
- Use the host_lock when changeing the sli_flag.
- Prevent NULL pointer dereference after dma_alloc_coherent failure.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
- Convert all sysfs parameters to uint instead of int.
- Add lpfc_supress_link_up parameter.
- Change link_state to writable sysfs parameter.
- Add support to be able to "up" or "down" link from link_state parameter.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
- Add support for the INTF (Interface) PCI register.
- Add support for greater than 2 page SGLs.
- Add support for up to 32 bit BDE lengths.
- Implement the Port Capabilities Mailbox command.
- Stop checking the Minor Code in the EQE structure.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
- Call pci_save_state() after pci_restore_state() call to cope
with kernel change.
- Add support for PCI BAR region 0 if BAR0 is a 64 bit register.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
In particular, several occurances of funny versions of 'success',
'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address',
'beginning', 'desirable', 'separate' and 'necessary' are fixed.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Joe Perches <joe@perches.com>
Cc: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Modify the following BSG commands to operate asynchronously.
- FC_BSG_RPT_ELS
- FC_BSG_RPT_CT
- LPFC_BSG_VENDOR_GET_CT_EVENT
- LPFC_BSG_VENDOR_SET_CT_EVENT
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Create lpfc_bsg.h
- structures, etc used by bsg-related routines.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Update BSG infrastructure to handle new vendor specific BSG commands.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Display Logical Link Speed when supported and is non-zero.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Discovery relates changes:
- Separated VPI_REGISTERED state of physical port into VFI_REGISTERED and
VPI_REGISTERED state so that driver can unregister physical port VPI
independent of VFI.
- Add code to unregister, re-init and re-register physical port VPI
when physical port NportID change.
- Add code to unregister and re-register VPI of a vport when its Nport
ID change.
- Add code in FDISC completion path to re-start FLOGI discovery when
a FDISC complete with LOGIN_REQUIRED reason code.
- Fix a memory leak in lpfc_init_vpi_cmpl
- Add code to start a timer for vport to retry FDISC when CVL is received
by a vport or physical port. If all Nports receive CVLs, then all timers
are cancelled and a logical link level discovery will be started after
one second.
- Flush ELS commands after killing all delayed ELS commands.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fix hardware/SLI relates issues:
- Handle XB bit so that ELS XRIs are not prematurely released.
- Handle XB bit so that FCP XRIs are not prematurely released.
- Define new security SLI Commands.
- Remove unused security SLI commands
- Skip receive data size parameter check on received FLOGI.
- Added LPFC_USE_FCPWQIDX flag to iocb to force SLI layer
to submit abort WQE on same WQ as the command WQE.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Regardless of the flag state, the branches execute the same code
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Some comments misspell "should" or "shouldn't"; this fixes them. No code changes.
Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
A Gentoo bug report [1] showed that as of 2.6.31 lpfc only uses INTx interrupts.
This patch restores lpfc's ability to support MSI-X/MSI interrupts that the
"Addition of SLI4 Interface - Base Support" patch [2] broke.
It reestablishes MSI-X as the default interrupt method and in case MSI-X is not
supported lpfc_sli{4,}_enable_intr fallbacks to MSI and then to INTx.
[1]: http://bugs.gentoo.org/show_bug.cgi?id=296319
[2]: commit da0436e915
[James Smart:
Background:
Nothing Broke. This was intended.
We had originally enabled MSI-X by default, but in qualification within the
last 12 months, we encountered a major catch-22:
There were at least 4 platforms, from 2 major OEMs, that :
- Say they support MSI-X - platform routines work and act as if they do.
- We enable it, generate a test interrupt to check they really do deliver it,
and it works.
- But shortly after attachment, the system hangs or loses interrupts,
resulting in a bad system behavior.
Given the distro's picking up the 2.6.32 kernel, we had to stick with a
default of MSI-X off, with user-enabled MSI-X as these platforms couldn't get
fixed.
However, we're also now encountering platforms that require MSI-X and never
INTx, so we must change. It's desired also for also for performance reasons.
So - now (2.6.33) is the right time to re-enable MSI-X by default.
]
[jejb: fix up comment on default values]
Signed-off-by: George Kadianakis <desnacked@gmail.com>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
lpfc_hbadisc.c and lpfc_hw4.h accidentally got set executable.
Reported-by: Thomas Backlund <tmb@mandriva.org>
Cc: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fix discovery failures:
- Move all accesses to the fc_flag field inside the host lock.
- Restore link state after going through linkdown processing for FCF DEAD event.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fix SCSI protocol related errors:
- Avoid I/O failures during EEH and HBA/CNA reset by correcting when
we block the targets on the adapter.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fix hardware/SLI relates issues:
- Fix CNA uses more than one EQ when in INTx interrupt mode.
- Fix driver tries to process failed read FCF record mailbox request.
- Fix allocating single receive buffer breaks FCoE receive queue.
- Support new read FCF record mailbox error case.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fix NPIV operation errors:
- Fix vport not logging out of fabric when being deleted
- Fix vport fails to discover targets after devloss timeout.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fix FC protocol errors:
- Fix multi-frame unsolicited sequences not queued properly
- Fix frames for unsolicited sequences not being associated with sequence.
- Fix unsolicited frame buffer sizes are not set properly
- Fix Sequence count for unsolicited frame headers not byte swapped.
- Fix Multi-frame sequence response frames go to wrong DID.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
In testing 2.6.31 on one of our ia64 platforms I've encountered a hang
due to the driver using hardware ATEs which are a limited resource.
This is because the driver does not set the dma consistent mask to
64 bits.
Signed-off-by: Michael Reed <mdr@sgi.com>
Acked-by: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Hardware related Fixes and Changes.
- Added new Adapter IDs and update default Adapter names.
- Added PCI read after EQarm doorbell PCI write to flush the write
and avoid spurrious interrupts when in INTx mode.
- Phase out use of ONLINE registers.
- Fix for lost MSI interrupt
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fix errors relating to crashes and hangs.
- Fix crash due to list corruption while unloading driver.
- Fix panic during pci-hot-plug testing.
- Fix panic when unmapping luns.
- Fixed total_scsi_bufs counting could cause exhausted memory.
- Fixed locking issue causing hang.
- Fixed the call from lpfc_new_scsi_buf_s3 to use lpfc_release_scsi_buf_s3.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fix AER issues.
- Made AER sysfs entry point return "Operation not permitted" to
OneConnect HBAs
- Stop and abort all I/Os on HBA for AER uncorrectable non-fatal error
handling
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
FC protocol fixes.
- Fix send sequence logic to handle multi SGL IOCBs.
- Fix FDISC completion always setting VPORT state to failed.
- Ported the fix on reporting of max_vpi to uppper layer.
- Fix incorrect number of Vports allowed to be created.
- Fixed Dead FCoE port after creating vports.
- Added handling of ELS request for Reinstate Recovery Qualifier (RRQ)
- Handle unsolicited CT exchange initiator receiving CT exchange ABTS
- Migrate LUN queue depth ramp up code to scsi mid-layer.
- Made ABTS WQE go to the same WQ as the WQE to be aborted.
- Fix Vport does not rediscover after FCF goes away.
- Fixed lpfc_unreg_vfi failure after devloss timeout.
- Fixed RPI bit leak.
- Fix hbq pointer corruption during target discovery.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
FCoE Protocol fixes.
- Fixed FIP frame designation for ELS commands.
- Fix CVL received on Port 1 not processed by driver.
- Fix Zeroed frame on wire after FLOGI
- Fix vport keep-alive does not contain the correct WWN.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch includes the following changes:
- Fixed Panic/Hang when using polling mode for fcp commands
- Added support for Read_rev mbox bits indicating FIP mode of HBA
- Optimize performance of slow-path handling of els responses
- Add code to cleanup orphaned unsolicited receive sequences
- Fixed Devloss timeout when multiple initiators are in same zone
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch include the following fixes and changes:
- Fix crash when "error" is echoed to board_mode sysfs parameter
- Fix FCoE Parameter parsing in regions 23
- Fix driver crash when creating vport with large number of targets on SLI4
- Fix bug with npiv message being logged when it is not supported by the adapter
- Fix a potential dereferencing mailbox structure after free bug
- Fix firmware crash after vport create with high target count
- Error out requests to set board_mode to warm restart via sysfs on SLI4 HBAs
- Fix Block guard logging
- Fix a memory corruption issue during GID_FT IO prep
- Fix crash while processing unsolicited FC frames
- Fix failed to allocate XRI message is not a critical failure
- Update and fix formatting in some log messages
- Fix missing new line characters in log messages
- Removed the use of the locally defined FC transport layer related macros
- Check the rsplen in lpfc_handle_fcp_err function before using rsplen
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch includes the following fixes and new features:
- Fix mask size for CT field in WQE
- Fix VPI base not used when unregistering VPI on port 1.
- Fix UNREG_VPI mailbox command to unreg the correct VPI
- Fixed Check for aborted els command
- Fix error when trying to load driver with wrong firmware on FCoE HBA.
- Fix bug with probe_one routines not putting the Scsi_Host back upon error
- Add support for Clear Virtual Link Async Events
- Add support for unsolicited CT exchange sequence abort
- Add 0x0714 OCeXXXXX PCI ID
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch includes the following fixes:
- Fixed panic during HBA reset.
- Fixed FCoE event tag passed in resume_rpi.
- Fix out of order ELS commands
- Fixed discovery issues found during VLAN testing.
- Fix UNREG_VPI failure on extended link pull
- Fixed crash while processing unsolicited FC frames.
- Clear retry count in the delayed ELS handler
- Fixed discovery failure during quick link bounce.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Tejun Heo
Linus Torvalds
Jiri Kosina
James Smart
Daniel Mack
Roel Kluin
Adam Buchbinder
George Kadianakis
James Bottomley
Michael Reed