Replace it with !ASC_NARROW_BOARD
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

It was only ever set; never tested, nor cleared.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Don't need to set ASC_HOST_IN_RESET any more
 - Don't need to test scp->device->host for NULL -- if it's NULL, we
   couldn't've been called.
 - Use scmd_printk instead of ASC_PRINT
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The narrow board used two global structures to set up a command;
unfortunately they weren't locked, so with two boards in the machine,
one call to queuecommand could corrupt the data being used by the other
call to queuecommand.

Fix this by allocating asc_scsi_q on the stack (64 bytes) and using kmalloc
for the asc_sg_head (2k)
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The wide and narrow boards share identical handling of the return value,
except for some trivial error messages.  Move the handling to the common
end of the function.  Also move variable declarations to the arms of
the `if' that they're used in and delete some pointless comments.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The driver was saving a scsi_device for each target, but wasn't doing
anything useful with them.  Just delete the array.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Rearrange a lot of the functions in the file to get rid of all the forward
declarations.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Follow the example of some other drivers by defining DRV_NAME to be
"advansys".  Prevents spelling mistakes.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Delete comments relating to the previous structure of the driver.
   I have no intention of honouring them ;-)
 - Reformat comments > 80 columns
 - Remove now-obsolete comments from advansys_interrupt
 - Change adv_get_sglist() from do {} while (1) to for (;;)
 - Return void from AscInitQLinkVar()
 - Take out a level of indentation in adv_get_sglist()
 - Reduce indentation level of AscAsyncFix()
 - Remove unused macros
 - Refactor AscSendScsiQueue slightly
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Replace ASC_ASSERT() with BUG_ON().
   In a few places, get rid of the assertion altogether -- the ensuing
   crash will tell us all we need to know.  Use BUG() where it fits better
   than BUG_ON().  Also fix a fencepost error in advansys_proc_info().
 - Replace DvcSleepMilliSecond with mdelay.
   Despite its name using 'sleep', the implementation was a delay.
   I've marked some places with XXX where we should probably be using
   msleep instead.  They need to be audited to be sure we can sleep in
   that context.
 - Replace DvcDelayMicroSecond with udelay.
 - Replace DvcDelayNanoSecond with udelay too.
   All callers were multiples of 1000.
 - Remove DvcEnterCritical and DvcLeaveCritical.
   These functions are no-ops, and as the comments said, the spinlock
   protects the critical sections.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

AscExeScsiQueue() has one caller, and it passes the address of a
variable; this cannot ever be NULL.  This is the only place that ever
sets ASCQ_ERR_SCSIQ_NULL_PTR, so delete that error code too, as well as
several other unused ASCQ_ERR codes.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The SCSI midlayer won't send commands greater than ->max_cmd_len.
So the checks on length in asc_build_req and adv_build_req are obsolete
and can be deleted, but also we have to set the max_cmd_len in
advansys_board_found().  Also move the length definitions together, and
write a helpful comment.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Move as much as possible outside the critical section in queuecommand, eg:
 - Set the scsi_done field before acquiring the lock
 - Call asc_scsi_done after dropping the lock

Also remove a comment suggesting we should enable interrupts (now we do)
and do some minor reformatting for readability.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The `active' list was used in the reset handler -- but the midlayer
guarantees that list is empty by the time the reset handler is invoked.
It was also checked in the interrupt routines to be sure that this command
belonged to this board, but we don't need to check that either.  We can
then delete the asc_prt_target_stats() function as it will never print
anything, along with asc_enqueue(), asc_dequeue_list(), asc_rmqueue(),
asc_scsi_done_list(), struct asc_queue, ASC_QUEUE_EMPTY, ASC_TID_ALL,
ASC_FRONT, ASC_BACK, and all the REQ* macros.  Also remove this item from
the todo list.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Move the guts of asc_scsi_done_list() into a new function, asc_scsi_done.
 - Call asc_scsi_done() in asc_isr_callback() and adv_isr_callback().  The
   comment was wrong; scsi_done cannot enable interrupts.
 - All other places which queued an scp on the done list are error paths
   for queuecommand, and so we can just call asc_scsi_done() in queuecommand
   if we receive an error.
 - We no longer need to keep a list of done requests in advansys_interrupt
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The midlayer guarantees it won't call ->queuecommand for a host which
is handling a reset condition.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

If the adapter is busy, return the request to the midlayer rather than
queueing it in the driver.  asc_execute_queue() and asc_dequeue() become
unused, and we don't need to print out stats on the waiting queue any more.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Move the error reporting into AscInitGetConfig, AdvInitGetConfig and
AscInitSetConfig.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

It's just data, so format it to something that looks more visually
appealing (and saves some lines)
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Split AdvLoadMicrocode out of AdvInitAsc3550Driver, AdvInitAsc38C0800Driver
and AdvInitAsc38C1600Driver.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Split AdvBuildCarrierFreelist out of AdvInitAsc3550Driver,
AdvInitAsc38C0800Driver and AdvInitAsc38C1600Driver.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

You can't have two drivers for the same bus type with the same name.
Since ISA and VLB are both isa_drivers, rename the VLB one to advansys_vlb.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The 700+-line comment at the top of the advansys driver fits more comfortably
in Documentation/scsi.

Delete the sections on:
 - kernels supported
 - other files modified (obsolete)
 - source comments (obsolete)
 - tests to run
 - release history (that's what a VCS is for)
 - contacting connectcom (the domain has expired and the phone number is
   now in use by another organisation)

Known problems/fix list is moved down to the section where jejb put his FIXME.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Use memcpy to initialise eep_config instead of a loop.  For
AdvInitFrom38C1600EEP where we need to modify the default EEPROM
configuration, do it after the loop, and do it using the structure
definition, not by finding the right byte.  I think it was wrong for
big-endian machines.

Also delete some non-useful comments and prototypes.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The driver kept a copy of the PCI config address; refer to the pci_dev
associated with the card instead.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Convert adv_isr_callback, adv_async_callback and asc_isr_callback into
direct calls.  Remove the unused asc_exe_callback.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The cfg structures are supposed to be disposable after initialisation;
with the 'dev' used for DMA mapping in there, that's not possible.  Move
the dev to the board.

Also inline AscInitFromAscDvcVar into its only caller, remove some
unnecessary prototypes and sort out a few minor formatting issues.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

n_io_port isn't suitable for advansys because some of the boards have
more than 255 bytes of io port space.  There's already a driver-private
replacement, asc_n_io_port, but for some reason the driver was still
setting and occasionally reporting n_io_port.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

At some point during Linux 2.1 development, ioremap() gained the ability
to handle addresses which weren't page-aligned.  Also expand the CONFIG_PCI
range to encompass that entire section of wide board initialisation, since
all wide boards are PCI.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

By moving a test from AscGetChipBusType into its only caller, we can delete
the whole function
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Remove some useless forward declarations
Reformat some comments, debug messages, and the occasional piece of real code
Removal of unnecessary braces
Remove duplicate setting of shost->irq
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Use slave_configure() to do all the work that used to be done in
AscInquiryHandling and AdvInquiryHandling.  Split slave_configure into
two functions, one for wide and one for narrow controllers.

Remove some unused definitions, duplicate definitions, unnecessary
declarations, and scsireqq, cap_info and inquiry from struct asc_board.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

AscCompareString() is just another name for strncmp
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Remove wrappers around the PCI configuration space accessors
 - Call pci_set_master() instead of poking at config space directly
 - Move the latency setting into one function called for both narrow and
   wide boards.
 - Tidy up AdvInitGetConfig() a little.
 - Delete a few unused prototypes and definitions.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Make sure the resources are reserved and released by all the callers of
advansys_board_found().  This eliminates the check_region-style race.
It also allows us to use the pci_request_regions() API.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Register two isa_drivers, one for ISA and one for VLB, in order to
preserve detection order.  When deleting advansys_detect, we lose the
last vestiges of the code that limited IO port scanning.  This code
has been effectively disabled for many years anyway; I'll restore it
in a module_param later.  We also lose the code that placed all ISA PnP
cards into WaitForKey state -- drivers shouldn't be doing this anyway.
The asc_host array goes away too.  Also remove some IOADR and other
definitions, such as ASC_NUM_BOARD_SUPPORTED.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Switch EISA probing to the driver model
 - Remove some now-unused macros and functions
 - Update the FIXME now that we use the correct driver model probing API
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Add a pci_driver interface for the PCI advansys devices (for
   ISA/EISA/VLB devices, we still call advansys_detect).
 - Many functions are converted from __init to __devinit to allow hotplug
   PCI to work.
 - Only keep devices found by advansys_detect in the asc_host list.
 - Rename asc_board_count to asc_legacy_count.  New asc_board_count is only
   used to generate a unique name for each device.
 - Remove some now-unused macros and struct definitions
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Switch from scsi_register/scsi_unregister to scsi_host_alloc,
   scsi_add_host, scsi_scan_host and scsi_host_put.
 - Rename the scsi_host_template to advansys_template
 - Use module_init and module_exit instead of scsi_module.c
 - Remove protection against advansys_detect being called twice
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

 - Put all the error cleanup at the end of the function and goto the
   appropriate label
 - Split advansys_wide_init_chip out of advansys_board_found
 - Split advansys_wide_free_mem out of advansys_board_found.  Use it
   from advansys_release
 - Use GFP_KERNEL, not GFP_ATOMIC, when allocating memory during
   initialisation
 - Eliminate lots of PROC_FS ifdefs by removing the ifdefs around the prtbuf
   struct member
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>