This patch adds the ability to add a backlink to a particular port.  The
idea is to represent properly ports on expanders that are used
specifically for linking to the parent device in the topology.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Currently struct scsi_cmnd has various fields that are used to backup
original data after the corresponding fields have been overridden for
EH commands.  This means drivers can easily get at it and misuse it.
Due to the old_ naming this doesn't happen for most of them, but two
that have different names have been used wrong a lot (see previous
patch).  Another downside is that they unessecarily bloat the scsi_cmnd
size.

This patch moves them onstack in scsi_send_eh_cmnd to fix those two
issues aswell as allowing future EH fixes like moving the EH command
submissions to use SG lists like everything else.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Without this patch we register an interrupt with request_irq,
but then return a bad return code from the module probe.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Allocate the correct number of lp events when running
ibmvscsi on legacy iseries
Signed-off-by: Dave Boutcher <sleddog@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Remove last vestiges of the reverse_scan paramater from aic7xxx and aic79xx.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Stop poking into the old_ & co scsi_cmnd fields that should only be used
in the EH code.  Untested, but this is required to move ahead with the
EH fixes.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Convert this:
st0: Error with sense data: <6>st: Current: sense key: Illegal Request
    Additional sense: Invalid field in cdb

To this:
st0: Current: sense key: Illegal Request
    Additional sense: Invalid field in cdb
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
Acked-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Change version number to 8.1.7
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Misc Fixes:
 - Fix some sparse warnings - casts of address space
 - Fix handling of the adapter registration string. Each invocation
   was byteswapping, so every other adapter init attempt failed.
 - Correct comments and default value for the lpfc_max_luns parameter
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Add lpfc_sli_flush_mbox_queue() function and use it in lpfc_offline() call
to avoid deadlock on thread block.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Correct the wait in attachment that delays for topology discovery
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Remove depricated sysfs attribute board_online, as it's replaced by the new
issue_reset attribute
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Adding new issue_reset sysfs attribute
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Fix panic in lpfc_sli_validate_fcp_iocb due to access of scsi_cmnd after
returning it to the midlayer
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Consolidate dma buf cleanup into a separate function
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Correct bogus nodev_tmo message on NPort that changes its NPort Id
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Fix txcmplq related panics on heavy IO while downloading firmware
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Issue DOWN_LINK prior to INIT_LINK to work around link failure issue
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Fixed infinite retry of REG_LOGIN mailbox failed due to MBXERR_RPI_FULL
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Fix memory leak and cleanup code related to per ring lookup array.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Standardize the driver on a single define for the maximum supported targets.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Use mod_timer instead of add_timer in lpfc_els_timeout_handler

This patch was formerly posted by Mark Haverkamp.
http://marc.theaimsgroup.com/?l=linux-scsi&m=114246089015681&w=2Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

This allows us to be rid of the machinery in mptsas for creating and
tracking port numbers.  Since mptsas is merely inventing the numbers,
the SAS transport class may as well do it instead.
Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Following on from my post titled: "additional sense codes
need update" see the attachment against lk 2.6.17 .

ChangeLog:
  - update additional sense codes table to agree with
    SPC-4 revision 5a  (14 June 2006)
  - adjust some of the opcode names
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Some SAS HBAs don't want to go to the trouble of tracking port numbers,
so they'd simply like to say "add this port and give it a number".
This is especially beneficial from the hotplug point of view, since
tracking ports and the available number space can be a real pain.

The current implementation uses an incrementing number per expander to
add the port on.  However, since there can never be more ports than
there are phys, a later implementation will try to be more intelligent
about this.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

This patch makes a needlessly global function static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Use "+m" rather than a combination of "=m" and "m" for improved clarity
and consistency.

This also fixes some inlines that incorrectly didn't tell the compiler
that they read the old value at all, potentially causing the compiler to
generate bogus code.  It appear that all of those potential bugs were
hidden by the use of extra "volatile" specifiers on the data structures
in question, though.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Use "+m" rather than a combination of "=m" and "m" for improved
clarity and consistency.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[ There's some not quite baked bits in cpufreq-git right now
  so sending this on as a patch instead ]

On Thu, 2006-07-06 at 07:58 -0700, Tom London wrote:

> After installing .2356 I get this each time I boot:
> =======================================================
> [ INFO: possible circular locking dependency detected ]
> -------------------------------------------------------
> S06cpuspeed/1620 is trying to acquire lock:
>  (dbs_mutex){--..}, at: [<c060d6bb>] mutex_lock+0x21/0x24
>
> but task is already holding lock:
>  (cpucontrol){--..}, at: [<c060d6bb>] mutex_lock+0x21/0x24
>
> which lock already depends on the new lock.
>

make sure the cpu hotplug recursive mutex (yuck) is taken early in the
cpufreq codepaths to avoid a AB-BA deadlock.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

It's all good.

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [PKT_SCHED]: Fix error handling while dumping actions
  [PKT_SCHED]: Return ENOENT if action module is unavailable
  [PKT_SCHED]: Fix illegal memory dereferences when dumping actions

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Fix stack overflow checking in modular non-SMP kernels.
  [SPARC64]: Fix sparc64 build errors when CONFIG_PCI=n.

"return -err" and blindly inheriting the error code in the netlink
failure exception handler causes errors codes to be returned as
positive value therefore making them being ignored by the caller.

May lead to sending out incomplete netlink messages.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

The TCA_ACT_KIND attribute is used without checking its
availability when dumping actions therefore leading to a
value of 0x4 being dereferenced.

The use of strcmp() in tc_lookup_action_n() isn't safe
when fed with string from an attribute without enforcing
proper NUL termination.

Both bugs can be triggered with malformed netlink message
and don't require any privileges.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

The sparc64 kernel's EXPORT_SYMBOL(_mcount) is inside an
#ifdef CONFIG_SMP. This breaks modules in non-SMP kernels
built with stack overflow checking (CONFIG_STACK_DEBUG=y),
as modules_install reports:

WARNING: /lib/modules/2.6.17/kernel/drivers/ide/ide-cd.ko needs unknown symbol _mcount

Trivially fixed by moving EXPORT_SYMBOL(_mcount) outside of
the #ifdef CONFIG_SMP.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [PCI] Add JMicron PCI ID constants
  [PATCH] ahci: Ensure that we don't grab both functions
  [PATCH] libata-core.c: restore configuration boot messages in ata_dev_configure(), v2
  [PATCH] sata_sil24: add suspend/sleep support
  [PATCH] sata_sil24: separate out sil24_init_controller()
  [PATCH] sata_sil: add suspend/sleep support
  [PATCH] sata_sil: separate out sil_init_controller()
  [PATCH] libata: reimplement controller-wide PM
  [PATCH] libata: reimplement per-dev PM
  [PATCH] libata: implement PM EH actions
  [PATCH] libata: separate out __ata_ehi_hotplugged()
  [PATCH] libata: implement ATA_EHI_NO_AUTOPSY and QUIET
  [PATCH] libata: clean up debounce parameters and improve parameter selection
  [PATCH] libata: implement ATA_EHI_RESUME_LINK
  [PATCH] libata: replace ap_lock w/ ap->lock in ata_scsi_error()
  [PATCH] libata: fix ehc->i.action setting in ata_eh_autopsy()
  [PATCH] libata: add ap->pflags and move core dynamic flags to it
  [PATCH] libata: Conditionally set host->max_cmd_len
  [PATCH] sata_vsc: data_xfer should use mmio

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

They will be used in several IDE/libata files.
Signed-off-by: Jeff Garzik <jeff@garzik.org>

When we force the chip into dual fn mode so we get PATA and AHCI we must
be sure we don't then do anything dumb like try and grab both with the AHCI
driver.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>