Whenever an external device is resetted we really have to take
care to keep the channel in sync. Just notifying SCSI-ML and retry
is not enough as we have to make sure the SCSI bus is not getting
confused, either.
So whenever we detect an external reset we rewrite the command to
TUR, disable packetized command and notify the internal engine
that an abort has happened. This way we trigger a proper bus
reset sequence and all devices will be renegotiated properly.
Kudos to Justin Gibbs and Luben Tuikov for this idea.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Fix printk format warning:
drivers/scsi/lpfc/lpfc_attr.c:597: warning: long long unsigned int format, uint64_t arg (arg 4)
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Acked-by: NJames Smart <James.Smart@Emulex.Com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Acked-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

- make needlessly global code static

- #if 0 the following unused global functions:
  - aic79xx_core.c: ahd_print_scb
  - aic79xx_core.c: ahd_suspend
  - aic79xx_core.c: ahd_resume
  - aic79xx_core.c: ahd_dump_scbs
  - aic79xx_osm.c: ahd_softc_comp
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Acked-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Cleanups done to use min/max macros from kernel.h.  Handcrafted MIN/MAX
macros are changed to use macros in kernel.h

[akpm@osdl.org: fix warning]
Signed-off-by: NAmol Lad <amol@verismonetworks.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This patch adds support for REPORT TARGET PORT GROUPS. This is used
eg for the multipathing priority callout to determine the path
priority.
With this patch multipath-tools can use the existing mpath_prio_alua
callout to exercise the path priority grouping.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NDouglas Gilbert <dougg@torque.net>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Fix typo in check of return value of qla1280_bus_reset() which would
result in an adapter reset in addition to the bus reset.
Signed-off-by: NJes Sorensen <jes@sgi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

According to the iscsi RFC, we cannot send other requests if
we have sent a logout pdu. This patch enforces this requirement
by blocking the session and suspending the send thread. Userspace
decides if we restart the connection or if we just free everything.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

We have been dropping the pdu. We should just send it to userspace
and let it handle it.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

from bhalevy@gmail.com:

It looks like change 652 to libiscsi.c added some dead code around line
670
                if (rc) {
                        spin_unlock_bh(&conn->session->lock);
                        goto again;
                }

since 5 lines above we goto again if (rc).

It looks like the previous if (rc) should go away if we want to put the
ctask before
breaking out of the while loop with "goto again" (see following patch).
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

If connection creation fails we end up calling list_del
on a invalid struct. This then causes an oops. We are not
acutally using the lists (old MCS code we thought might
be useful elsewhere) so this patch just removes that
code.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The transport class recv mempools are causing slab corruption.
We could hack around netlink's lack of mempool support like dm,
but it is just too ulgy (dm's hack is ugly enough :) when you need
to support broadcast.

This patch removes the recv pools. We have not used them even when
we were allocting 20 MB per session and the system only had 64 MBs.
And we have no pools on the send side and have been ok there. When
Peter's work gets merged we can use that since the network guys
are in favor of that approach and are not going to add mempools
everywhere.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Doesn't make the hardware hot pluggable but does ensure the driver won't
crash when another device is hot-unplugged at the wrong moment. Soon I
propose to deprecate pci_find_device() and some of its friends.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Debugging TCQ issues has shown me this is a very useful parameter to be
able to view.  Add it to he host class parameters.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

It is known that 2 LSI Logic MegaRAID SATA RAID Controllers (150-4 and
150-6) don't support 64-bit DMA. Unfortunately currently this check is
wrong and driver sets 64-bit DMA mode for these devices.
Signed-off-by: NAndrey Mirkin <amirkin@sw.ru>
Acked-by: N"Ju, Seokmann" <Seokmann.Ju@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Add PCI id. Plus correct for possibly missing resistor that can cause
FLASHEX to have the wrong value.
Signed-off-by: NSergey Kononenko <sergk@sergk.org.ua>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

The "ibmvscsi: treat busy and error conditions separately" patch
submitted by Dave Boutcher back in June incorrectly reenables the CRQ.
The broken logic causes the adapter to get disabled if the CRQ
connection happens to close temporarily.  This patch "fixes that
obviously wrong logic check" (Dave's words).
Signed-off-by: NSantiago Leon <santil@us.ibm.com>
Signed-off-by: NDavid Boutcher <sleddog@us.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

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

- Drop queue-depths across all luns for a given fcport
  during TASK_SET_FULL statuses.
- Ramp-up I/Os after throttling.
- Consolidate completion-status handling of CS_QUEUE_FULL with
  CS_COMPLETE as ISP24xx firmware no longer reports
  CS_QUEUE_FULL.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Early ISP2432 parts have a known hardware issue when coming
out of a D3 hot state.  This issue can result in a hung PCIe
link.  Recent firmwares contain a workaround whereby the
stop-firmware mailbox command prevents the ISP from entering
the D3 hot state.

In order to ensure that the workaround succeeded the driver
must verify that the stop-firmware mailbox command completes
successfully.  In the event of a failure, the driver
attempts a shutdown-retry after resetting the ISP and
re-executing firmware.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

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

Define ZFCP_MAX_SECTORS and initialize scsi_host_template.max_sectors
with appropriate value.
Signed-off-by: NSwen Schillig <swen@vnet.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Changes the obsolete Scsi_Cmnd to struct scsi_cmnd in the Fibre Channel
driver (fc4).
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Changes the obsolete typedefd Scsi_Cmnd to struct scsi_cmnd in
the ninja scsi pcmcia driver.
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Changes the obsolete Scsi_Cmnd to struct scsi_cmnd in psi240i-driver.
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

If we fail to allocate mp->virt during the first while loop iteration,
mlist is still uninitialized, therefore we should check if before
dereferencing.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Acked-by: NJames Smart <James.Smart@Emulex.Com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Fixes a typo in the aic7xxx_old.c.
Signed-off-by: NOlaf Hering <olaf@aepfle.de>
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Thanks to James Smart for the inspiration.

Stall error handler if attempting recovery while an rport is blocked.
This avoids device offline scenarios due to errors in the error handler.
Also verify that VirtDevice is available before issuing scsi command.
VirtDevice is removed when fc transport removes a target.

See James Smart's patch of 08/17/2006 for greater detail.

http://marc.theaimsgroup.com/?l=linux-scsi&m=115583213624803&w=2

Also bump version number per Eric's request.
Signed-off-by: NMichael Reed <mdr@sgi.com>
Acked-by: NEric Moore <eric.moore@lsil.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

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

According to the adaptec sources aic7xxx / aic79xx really can do
4MB transfers. So we should adjust .max_sectors.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

There is a dup printk at the tail of qla4xxx_module_init().  Remove the
first instance as it's before the complete success of the function.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

AM53C974A's Start Transfer Counter register has 24 bits, thus
maximum transfer length is 16MiB. But the maximum I can test
is 8MiB, so use that until somebody tests 16MiB.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Based on the original patch from Hannes Reinecke <hare@suse.de>

Fix st_open() to return -ENOMEDIUM instead of -EIO if no medium is
found.
Signed-off-by: NKai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Change obsolete Scsi_Cmnd to struct scsi_cmnd in the Qlocic FAS408 driver.
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>

rejections fixed and
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

Change the obsolete Scsi_Cmnd to struct scsi_cmnd in the sun3-driver.
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

This is needed by at least the Mac Mini's, which (incorrectly) come back
from suspend with SCI_EN clear.

Thanks to Frdric Riss for hunting this down.
Acked-by: NFrdric Riss <frederic.riss@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <len.brown@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The error path path mistakenly called sysfs_create_group() rather than
sysfs_remove_group().  They take the same arguments, so it's easy to
cut-n-paste such a bug.
Signed-off-by: NJeff Garzik <jeff@garzik.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

- fix: toshoboe_invalid_dev() was recently removed, but not all callers
  were updated, causing the obvious linker error.  Remove caller,
  because the check (like the one removed) isn't used.

- fix: propagate request_irq() return value

- cleanup: remove void* casts

- cleanup: remove impossible ASSERTs
Signed-off-by: NJeff Garzik <jeff@garzik.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>