Firmware blob is little endian looks like this...
        unsigned char  Version1
        unsigned char  Version2
        unsigned char  Version3
        unsigned char  Padding
        unsigned short start_address
	unsigned short data
Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Le lundi 30 mars 2009, Chris Wright a écrit :
> q->queue could be ERR_PTR(-ENOMEM) which will break unwinding
> on error.  Make iscsi_pool_free more defensive.
>

Making the freeing of q->queue dependent on q->pool being set looks
really weird (although it is correct at the moment. But this seems
to be fixable in a much simpler way.

With the benefit that only the error case is slowed down. In both
cases we have a problem if q->queue contains an error value but it's
not -ENOMEM. Apparently this can't happen today, but it doesn't feel
right to assume this will always be true. Maybe it's the right time
to fix this as well.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

cxgb3i_ddp_cleanup just calls ddp_release directly so there is
no reason for the wrapper. This patch just renames ddp_release
to cxgb3i_ddp_cleanup and removes the old wrapper function.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

- Merge cxgb3i_ddp.ko to cxgb3i.ko as there is no other users.
- Bump the driver version up to 1.0.2.
Signed-off-by: NKaren Xie <kxie@chelsio.com>
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Keep track of offloaded tcp connections per adapter. Close all of the
connections upon reset.
Signed-off-by: NKaren Xie <kxie@chelsio.com>
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Orignally from Karen Xie, but merge conflicts/errors fixed up by
Mike Christie.
Signed-off-by: NKaren Xie <kxie@chelsio.com>
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Re-initialize the ddp settings after chip reset. It includes re-initialize
the related registers and the ddp map.
Signed-off-by: NKaren Xie <kxie@chelsio.com>
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Add error notification handling function which is called during chip reset.
Signed-off-by: NKaren Xie <kxie@chelsio.com>
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

changes:

- set aac_cache=2 as default value to avoid performance problem
  (Novell bugzilla #469922)

- Dell/PERC controller boot problem fixed (RedHat bugzilla #457552)

- WWN flag added to fix SLES10 SP1/SP2 drive detection problems

- 64-bit support changes

- DECLARE_PCI_DEVICE_TABLE macro added

- controller type changes
Signed-off-by: NAchim Leubner <aacraid@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NAlan Cox <alan@redhat.com>
Cc: Eric Moore <eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Mention ATAPI. We could insert an essay about libata and ide-scsi etc but
the failure case is someone enables it which is just fine so keep it
simple.

(Revised text from suggestion by Matthew Wilcox)

Closes #7736
Signed-off-by: NAlan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NEd Lin <ed.lin@promise.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

This adds the support of a new SAS 6G controller (st_yel)
Signed-off-by: NEd Lin <ed.lin@promise.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Use config struct (st_card_info) for parameters of different controllers
Signed-off-by: NEd Lin <ed.lin@promise.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

This adds the MSI support (default 0=off)
Signed-off-by: NEd Lin <ed.lin@promise.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

These are some small code fixes and changes, including:
- use 64 bit when possible
- remove some unnecessary code (in interrupt, queuecommand routine etc.)
- code change for reset handler
Signed-off-by: NEd Lin <ed.lin@promise.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

FIP is the new standard way to discover Fibre-Channel Forwarders (FCFs)
by sending solicitations and listening for advertisements from FCFs.

It also provides for keep-alives and period advertisements so that both
parties know they have connectivity.  If the FCF loses connectivity to
the storage fabric, it can send a Link Reset to inform the E_node.

This version is also compatible with pre-FIP implementations, so no
configured selection between FIP mode and non-FIP mode is required.

We wait a couple seconds after sending the initial solicitation
and then send an old-style FLOGI.  If we receive any FIP frames,
we use FIP only mode.  If the old FLOGI receives a response,
we disable FIP mode.  After every reset or link up, this
determination is repeated.
Signed-off-by: NJoe Eykholt <jeykholt@cisco.com>
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Adds include/scsi/fc/fc_fip.h for FIP protocol definitions.
Signed-off-by: NJoe Eykholt <jeykholt@cisco.com>
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The foce_softc mem was reserved by libfc_host_alloc as well as
by fcoe_host_alloc.

Removes one liner fcoe_host_alloc completely, instead directly calls
libfc_host_alloc to alloc scsi_host with libfc for just one fcoe_softc
as fcoe private data.

Moves libfc_host_alloc to libfc.h since it is a libfc API, placed
lport_priv API adjacent to libfc_host_alloc since this is related
to scsi_host priv data.
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Removes no where used several inline functions prefixed with skb_*
and be16_to_cpu.

Moves fcoe module specific func prototypes to fcoe.c from libfcoe.h,
moved only need for build.

Adds fcoe module header file fcoe.h and then moves fcoe module
specific fcoe_percpu_s and fcoe_softc to fcoe.h from libfcoe.h.

Moves all defines from fcoe.c to fcoe.h since now fcoe module
has its own header file fcoe.h.

[jejb: removed EXPORT_SYMBOL_GPL(fcoe_fc_crc) which caused a section mismatch]
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Moves these functions as-is from fcoe.c to libfcoe.c, since
they're are common routines:

	- fcoe_wwn_from_mac
	- fcoe_libfc_config
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Just sets up build environment for libfcoe module towards a
libfcoe library for libfc LLDs using FCoE as libfc transport.

Common library code to libfcoe is added in next patch.

Also, updated MODULE_LICENSE from "GPL" string to "GPL v2" for
libfc, libfcoe and fcoe modules to accurately match the licenses.
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Renames libfcoe.c to fcoe.c, fcoe.c becomes the only
.c file for fcoe.ko.

Also deleted "$Id: Makefile" from fcoe module Makefle.
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Moves only required code from fcoe_sw.c to libfcoe.c towards having
just one source file for fcoe module, this gets rid off default sw
transport code in a separate fcoe_sw.c file.

Very minor renaming along this move, dropped _sw_ or _SW_ use
in names and replaced them by _if_ as a auxiliary interface
functions. Now some of these funcs can be removed or merged with
other func after fcoe transport is gone, but that should be
in another patch to keep this patch simple.

Now the libfcoe.c file name for fcoe module doesn't go along well,
so the libfcoe.c file renaming to fcoe.c as the only single fcoe
module file is done in next patch to keep this patch clean
and small for review.
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Remove unused fc_transport_fcoe.c and fc_transport_fcoe.h
files.
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The fcoe transport code was added for generic FCoE transport
infrastructure to allow additional offload related module loading
on demand, this is not required anymore after recently added
different offload approach by having offload related func ops
in netdev.

This patch removes fcoe transport related code use, calls functions
directly between existing libfcoe.c and fcoe_sw.c for now, for
example fcoe_sw_destroy and fcoe_sw_create calling.

The fcoe_sw.c and libfcoe.c code will be further consolidated in
later patches and then also the default fcoe sw transport code
file fcoe_sw.c will be completely removed.

The fcoe transport code files are completely removed in next
patch to keep this patch simple for reviewing.

[This patch is an update to a previous patch. This update
resolves a build error as well as fixes a defect related to
not calling fc_release_transport().]
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

This patch adds support for dynamically created Rx threads
upon CPU hotplug events.

There were existing synchronization problems that this patch
attempts to resolve. The main problem had to do with fcoe_rcv()
running in a different context than the hotplug notifications.
This opened the possiblity that fcoe_rcv() would target a Rx
thread for a skb. However, that thread could become NULL if
the CPU was made offline.

This patch uses the Rx queue's (a skb_queue) lock to protect
the thread it's associated with and we use the 'thread' member
of the fcoe_percpu_s to determine if the thread is ready to
accept new skbs.

The patch also attempts to do a better job of cleaning up, both
if hotplug registration fails as well as when the module is
removed.

Contribution provided by Joe Eykholt <jeykholt@cisco.com> to
fix incorrect use of __cpuinitdata.
Signed-off-by: NYi Zou <yi.zou@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Remove the hotplug creation of dev_stats, we allocate for all possible CPUs
now when we allocate the lport.

v2: Durring the 2.6.30 merge window, before these patches were comitted,
'percpu_ptr' was renamed 'per_cpu_ptr'. This latest update updates this
patch for the name change.
Signed-off-by: NYi Zou <yi.zou@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Convert fcoe_percpu array to use the per-cpu variables
that the kernel provides. Use the kernel's functions to
access this structure.

The cpu member of the fcoe_percpu_s is no longer needed,
so this patch removes it too.
Signed-off-by: NYi Zou <yi.zou@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Currently the skb_queue is initialized every time the associated
CPU goes online. This patch has libfcoe initializing the skb_queue
for all possible CPUs when the module is loaded.

This patch also re-orders some declarations in the fcoe_rcv()
function so the structure declarations are grouped before
the primitive declarations.

Lastly, this patch converts all CPU indicies to use unsigned int
since CPU indicies should not be negative.
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Remove the creation of the symlink from the device to
it's class. On modern systems this is already created by
a udev rule and would WARN on load. On old systems it is
not needed, none of the current osd user-mode tools use
this link.
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

A fix for a very serious and stupid bug in osd_initiator. It
used to call blk_put_request() regardless of if it was from
the end_io callback or if called after a sync execution.
It should call the unlocked version __blk_put_request() instead.

Also fixed is the remove of _abort_unexecuted_bios hack, and use of
blk_end_request(,-ERROR,) to deallocate half baked requests. I've
audited the code and it should be safe.

Reported and
Tested-by: NXu Yang <onlyxuyang@qq.com>
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

We have a problem with recovered error handling in that any command
which goes down as BLOCK_PC but which returns a sense code of RECOVERED
ERROR gets completed with -EIO.  For actual SG_IO commands, this doesn't
matter at all, since the error return code gets dropped in favour of
req->errors which contain the SCSI completion code.

However, if this command is part of the block system, then it will pay
attention to the returned error code.  In particularly if a SYNCHRONIZE
CACHE from a barrier command completes with RECOVERED ERROR, the
resulting -EIO on the barrier causes block to error the request and
return it to the filesystem.  Fix this by converting the -EIO for
recovered error to zero, plus remove the printing of this from sd and sr
so the message isn't double printed.
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

aic79xx leaves timers inserted when ahd_init() (which inserts
two timers at its very end) succeeds but ahd_pci_map_int()
fails. In this case ahd->init_level gets incremented to 5 only
when that function succeeds, but ahd_free() calls ahd_shutdown()
only when ahd->init_level == 5, and ahd_shutdown() is where the
timers get removed. Since the freeing of the IRQ is not controlled
by ahd->init_level, we should increment init_level prior to
calling ahd_pci_map_int().
Reported-by: NJan Beulich <jbeulich@novell.com>
Signed-off-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

FLTDS provides FLT address in the byte address format,
convert it to dword address for further use.
Signed-off-by: NHarish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

In addition to checking for potentially unnecessary iomem
readX()/writeX() operations, a pci_channel_io_perm_failure should
not trigger a full internal removal.  Found during additional
testing with pSeries blade systems.
Signed-off-by: NSeokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

As updates will occur using low-level option-rom manipulation
routines.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Firmware semantics changed for 24xx and above ISPs in their
handling of the specified execution-throttle passed during
firmware initialization.  The original codes use of a theoretical
maximum (0xffff, as carried over from earlier ISPs) could in fact
act as a throttle in some circumstances.  Now set the value based
of the firmware's own 'resource' (exchange IOCBs) capabilities.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The original code to 'resize request-queues' based on iocb-counts
and employed during early ISP23xx testing was too
overly-pessimistic with regards to latencies in the firmware
pulling requests.  Recent ISPs can easily keep up processing a
stream of commands from an abbreviated (effectively, half the
original size) queue.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>