Commit Graph

4135 Commits

Author SHA1 Message Date
Tejun Heo
4c9bf4e799 libata: replace tf_read with qc_fill_rtf for non-SFF drivers
Now that all SFF stuff is separated out of core layer, core layer
doesn't call ops->tf_read directly.  It gets called only via
ops->qc_fill_rtf() for non-SFF drivers.  This patch directly
implements private ops->qc_fill_rtf() for non-SFF controllers and kill
ops->tf_read().

This is much cleaner for non-SFF controllers as some of them have to
cache SFF register values in private data structure and report the
cached values via ops->tf_read().  Also, ops->tf_read() gets nasty for
controllers which don't have clear notion of TF registers when
operation is not in progress.

As this change makes default ops->qc_fill_rtf unnecessary, move
ata_sff_qc_fill_rtf() form ata_base_port_ops to ata_sff_port_ops where
it belongs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17 15:44:23 -04:00
Tejun Heo
22183bf569 libata: add qc_fill_rtf port operation
On command completion, ata_qc_complete() directly called ops->tf_read
to fill qc->result_tf.  This patch adds ops->qc_fill_rtf to replace
hardcoded ops->tf_read usage.

ata_sff_qc_fill_rtf() which uses ops->tf_read to fill result_tf is
implemented and set in ata_base_port_ops and other ops tables which
don't inherit from ata_base_port_ops, so this patch doesn't introduce
any behavior change.

ops->qc_fill_rtf() is similar to ops->sff_tf_read() but can only be
called when a command finishes.  As some non-SFF controllers don't
have TF registers defined unless they're associated with in-flight
commands, this limited operation makes life easier for those drivers
and help lifting SFF assumptions from libata core layer.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17 15:44:23 -04:00
Tejun Heo
5682ed33aa libata: rename SFF port ops
Add sff_ prefix to SFF specific port ops.

This rename is in preparation of separating SFF support out of libata
core layer.  This patch strictly renames ops and doesn't introduce any
behavior difference.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17 15:44:22 -04:00
Tejun Heo
a1efdaba2d libata: make reset related methods proper port operations
Currently reset methods are not specified directly in the
ata_port_operations table.  If a LLD wants to use custom reset
methods, it should construct and use a error_handler which uses those
reset methods.  It's done this way for two reasons.

First, the ops table already contained too many methods and adding
four more of them would noticeably increase the amount of necessary
boilerplate code all over low level drivers.

Second, as ->error_handler uses those reset methods, it can get
confusing.  ie. By overriding ->error_handler, those reset ops can be
made useless making layering a bit hazy.

Now that ops table uses inheritance, the first problem doesn't exist
anymore.  The second isn't completely solved but is relieved by
providing default values - most drivers can just override what it has
implemented and don't have to concern itself about higher level
callbacks.  In fact, there currently is no driver which actually
modifies error handling behavior.  Drivers which override
->error_handler just wraps the standard error handler only to prepare
the controller for EH.  I don't think making ops layering strict has
any noticeable benefit.

This patch makes ->prereset, ->softreset, ->hardreset, ->postreset and
their PMP counterparts propoer ops.  Default ops are provided in the
base ops tables and drivers are converted to override individual reset
methods instead of creating custom error_handler.

* ata_std_error_handler() doesn't use sata_std_hardreset() if SCRs
  aren't accessible.  sata_promise doesn't need to use separate
  error_handlers for PATA and SATA anymore.

* softreset is broken for sata_inic162x and sata_sx4.  As libata now
  always prefers hardreset, this doesn't really matter but the ops are
  forced to NULL using ATA_OP_NULL for documentation purpose.

* pata_hpt374 needs to use different prereset for the first and second
  PCI functions.  This used to be done by branching from
  hpt374_error_handler().  The proper way to do this is to use
  separate ops and port_info tables for each function.  Converted.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17 15:44:18 -04:00
Adrian Bunk
0e4ff797d7 [SCSI] qla1280: remove version check
There's no point for an in-kernel driver to check whether it's compiled
under kernel < 2.6.0 .

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Jes Sorensen <jes@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-17 12:59:21 -05:00
Al Viro
17b7a8de3b [SCSI] libsas: fix endianness bug in sas_ata
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-17 12:57:17 -05:00
Paul Bolle
95e7a8efd7 [SCSI] aacraid: Do not describe check_reset parameter with its value
Describe check_reset parameter with its name (and not its value)

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-16 09:34:03 -05:00
Mark Salyzyn
e6990c6448 [SCSI] aacraid: Fix down_interruptible() to check the return value
Instead of ignoring the return value in aac_fib_send() return 2 to
indicate to the layers above that fib transmission was aborted due to
timeout.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-16 09:32:43 -05:00
Adrian Bunk
582df15327 [SCSI] sun3_scsi_vme: add MODULE_LICENSE
This patch adds the missing MODULE_LICENSE("GPL").

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-16 09:28:11 -05:00
Adrian Bunk
8ef8d5941c [SCSI] st: rename flush_write_buffer()
This patch fixes the following namespace collision with
include/asm-avr32/cacheflush.h :

<--  snip  -->

...
  CC [M]  drivers/scsi/st.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/scsi/st.c:629:53: error: macro "flush_write_buffer" passed 1 arguments, but takes just 0
...
make[3]: *** [drivers/scsi/st.o] Error 1

<--  snip  -->

st now uses st_flush_write_buffer()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-16 09:23:46 -05:00
FUJITA Tomonori
b312bab3b9 [SCSI] tgt: use KMEM_CACHE macro
This uses new KMEM_CACHE() macro instead of kmem_cache_create directly
to simplify slab cache creation.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-16 09:22:19 -05:00
Grant Grundler
423eef6fbb [SCSI] initio: fix big endian problems for auto request sense
Most of the cpu_to_le32() usage was wrong in one way or another.
Compiler warning on BE builds was just the tip of the iceberg.
This patch attempts to make this driver work on BE though I
don't have the HW to test it.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-11 17:16:28 -04:00
James Smart
9f448b5554 [SCSI] lpfc 8.2.6 : Update lpfc driver version to 8.2.6
Update lpfc driver version to 8.2.6

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-10 07:53:34 -05:00
James Smart
97eab63490 [SCSI] lpfc 8.2.6 : Miscellaneous Fixes
Miscellaneous Fixes
- Allow WRITE_VPARAM command when the virtual port is in a stopped state
- Fixed handling of our queue depth max that was unconditionally raising
  the depth on all vports, rather than just the vport affected.
- Fix race in interrupt handler for mailbox processing that did not take
  out the host lock.
- Removed unused functions: find_node, findnode_rpi, and fabric_abort_flogi
- Correct misspelled word unsolicited in message 0146
- Correct HW-error 5 handling - it should not reset the adapter
- Correct handling of IOCBs, which did not null out our pCmd field before
  invoking the midlayer io done function.
- Changed our maximum supported target id to 4096

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-10 07:53:12 -05:00
James Smart
9b37960523 [SCSI] lpfc 8.2.6 : PCI Parity and EEH handling fixes
PCI Parity and EEH handling Fixes:
- Under a PCI Data Parity Error, remove a completion routine callback that
  was on a command that we had already failed and released.
- Under PCI parity error, we were not reinstalling the interrupt handler
  in the slot_reset callback, so we never became functional again.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-10 07:52:36 -05:00
James Smart
58da1ffb2b [SCSI] lpfc 8.2.6 : Multiple discovery fixes
Multiple Discovery Fixes:
- Fix race on discovery due to link events coinciding with vport_delete.
- Use NLP_FABRIC state to filter out switch-based pseudo initiators that
   reuse the same WWNs.
- Correct erroneous setting of DID=0 in lpfc_matchdid()
- Correct extra reference count that was in the lookup path for the
  remoteid from an unsolicited ELS.
- Correct double-free bug in els abort path.
- Correct FDMI server discovery logic for switch that return a WWN of 0.
- Fix bugs in ndlp mgmt when a node changes address
- Correct bug that did not delete RSCNs for vports upon link transitions
- Fix "0216 Link event during NS query" error which pops up when vports
  are swapped to different switch ports.
- Add sanity checks on ndlp structures
- Fix devloss log message to dump WWN correctly
- Hold off mgmt commands that were interferring with discovery mailbox cmds
- Remove unnecessary FC_ESTABLISH_LINK logic.
- Correct some race conditions in the worker thread, resulting in devloss:
  - Clear the work_port_events field before handling the work port events
  - Clear the deferred ring event before handling a deferred ring event
  - Hold the hba lock when waking up the work thread
  - Send an acc for the rscn even when we aren't going to handle it
- Fix locking behavior that was not properly protecting the ACTIVE flag,
  thus allowing mailbox command order to shift.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-10 07:52:11 -05:00
Andrew Vasquez
b35c07d007 [SCSI] qla2xxx: Update version number to 8.02.01-k1.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:16 -05:00
Seokmann Ju
221726d41a [SCSI] qla2xxx: Correct vport configuration-change handling.
Upon having configuration changes on vports only, the driver
handles SCR regardless physical port state and, in turn, it
results mailbox error as below:

	Mar 20 11:24:20 dl585 kernel: qla2x00_mailbox_command(9): **** FAILED.  mbx0=4005, mbx1=1, mbx2=8100, cmd=70 ****

With the changes, driver checks physical port loop_state and make
sure the port is ready to take commands.

Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:16 -05:00
Seokmann Ju
bd2a1846b2 [SCSI] qla2xxx: Use proper HA during asynchrounous event handling.
Changes are added to the driver so that it can behave properly
upon having asynchronous events, for example, addition of target
devices to the VPs.

Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:16 -05:00
Seokmann Ju
463717edc9 [SCSI] qla2xxx: Check DFLG_NO_CABLE only on physical port.
As there is no actual cable connection on vports, made change so
that the driver checks DFLG_NO_CABLE against ha->device_flags
only for physical port.

Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:16 -05:00
Seokmann Ju
d4486fd6de [SCSI] qla2xxx: Consistently access the physical HA port.
There were several places where referencing ha structure of
virtual ports for resources. Among those refereces, certain
fields are get up-to-dated only on ha structure of physical port.

Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:15 -05:00
Andrew Vasquez
73f0f0f24a [SCSI] qla2xxx: Remove unused member (dma_handle) from srb_t structure.
The member is not needed as there's no non-scatter-gather
list I/Os submitted by the upper-layers.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:15 -05:00
Harihara Kadayam
4d4df1932b [SCSI] qla2xxx: Add ISP84XX support.
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Additional cleanups and
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:15 -05:00
Ravi Anand
b93480e319 [SCSI] qla2xxx: Assign mailbox command timeout values in a consistent manner.
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:15 -05:00
Andrew Vasquez
523ec773b8 [SCSI] qla2xxx: Add midlayer target/device reset support.
Now that infrastructure is present within the midlayer and there
is a clear distinction between what is expected from a device and
target reset, convert the current device-reset codes to a
target-reset, and add codes to perform a proper device-reset (LUN
reset).

In the process of adding reset support, collapse and consolidate
large sections of mailbox-command (TMF issuance) codes,
generalize the two 'wait-for-commands-to-complete' functions, and
add a generic-reset routine for use by midlayer reset functions.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:15 -05:00
Andrew Vasquez
3fe7cfb910 [SCSI] qla2xxx: Check alternate 'reason' code during GPSC status handling.
Some switches return 0x09 (Command not supported) as the reason
code for GPSC failure.  Check for this code, and disable
additional GPSC queries if found.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:14 -05:00
Andrew Vasquez
7d232c745e [SCSI] qla2xxx: Add Flash Descriptor Table layout support.
The Flash Descriptor Table (FDT) present on many recent HBAs
encodes flash accessing characteristics of the flash-part used on
the HBA.  Use this information during flash manipulation (writes)
rather than using specific hard-coded values based on queried
manufacturer and device IDs.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:14 -05:00
Andrew Vasquez
c87a0d8c8d [SCSI] qla2xxx: Use PCI-SIG nomenclature for PCIe bandwidth units.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:14 -05:00
Andrew Vasquez
587f4cae4a [SCSI] qla2xxx: Cruft cleanup of functions and structures.
Strip unused (DEBUG-ONLY) enabled functions, inlines, useless
wrappers, and unused DPC flags from the code.  Another step in
the migration towards a cleaner (less-crusty) driver.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:14 -05:00
Andrew Vasquez
cb8dacbf11 [SCSI] qla2xxx: Add hardware trace-logging support.
Recent ISPs have a region within FLASH which acts as a repository
for the logging of serious hardware and software failures.
Currently, the region is large enough to support up to 255
entries.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:13 -05:00
Andrew Vasquez
0971de7f56 [SCSI] qla2xxx: Add FC-transport Asynchronous Event Notification support.
Supported events include LIP, LIP reset, RSCN, link up, and link
down.

To support AEN (and additional forthcoming features), we also
introduce a simple deferred-work construct to manage events which
require a non-atomic sleeping-capable context.  This work-list is
processed as part of the driver's standard DPC routine.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:13 -05:00
Andrew Vasquez
c6952483b0 [SCSI] qla2xxx: Simplify interrupt handler locking.
There's no need to use the heavier (albiet safer)
*_irq[save|restore]() locking primitives within the driver's
interrupt handlers, interrupts are guaranteed to be
non-reentrant.  Use lightweight spin_lock() and spin_unlock()
primitives while acquiring the hardware_lock.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:13 -05:00
Andrew Vasquez
5ab5a4dd54 [SCSI] qla2xxx: Use an rport's scsi_target_id member consistently throughout driver.
Rather than using a duplicate/cached value stored in the driver's
internal fcport structure.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:13 -05:00
Andrew Vasquez
0ddda2d152 [SCSI] qla2xxx: Remove unused and obsolete #define's.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:13 -05:00
Andrew Vasquez
2ae2b37095 [SCSI] qla2xxx: Add support for host supported speeds FC transport attribute.
Use generic FC transport #defines for speed values.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:12 -05:00
Andrew Vasquez
01e58d8eac [SCSI] qla2xxx: Update copyright banner.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:11 -05:00
Andrew Vasquez
203c29102b [SCSI] qla2xxx: Update firmware filenames for new ISP parts.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:11 -05:00
James Bottomley
db3cc200a6 [SCSI] ips: remove spurious cpu_to_leX on outX statements
These are completely wrong because both outX and writeX do an
automatic reverse of their arguments if necessary, so having an extra
cpu_to_leX gives us the wrong ordering on BE platforms again.

Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:11 -05:00
James Bottomley
2f3edc6936 [SCSI] transport_class: BUG if we can't release the attribute container
Every current transport class calls transport_container_release but
ignores the return value.  This is catastrophic if it returns an error
because the containers are part of a global list and the next action of
almost every transport class is to free the memory used by the
container.

Fix this by making transport_container_release a void, but making it BUG
if attribute_container_release returns an error ... this catches the
root cause of a system panic much earlier.  If we don't do this, we get
an eventual BUG when the attribute container list notices the corruption
caused by the freed memory it's still referencing.

Also made attribute_container_release __must_check as a reminder.

Cc: Greg KH <greg@kroah.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:10 -05:00
James Bottomley
fa8e36c39b [SCSI] fix barrier failure issue
Currently, if the barrier command fails, the error return isn't seen
by the block layer and it proceeds on regardless.  The problem is that
SCSI always returns no error for REQ_TYPE_BLOCK_PC ... it expects the
submitter to pick the errors out of req->errors, which the block
barrier functions don't do.

Since it appears that the way SG_IO and scsi_execute_request() work
they discard the block error return and always use req->errors, the
best fix for this is to have the SCSI layer return an error to block
if one actually occurred (this also allows us to filter out spurious
errors, like deferred sense).

This patch is a bug fix that will need backporting to stable, but it's
also quite a big change and in need of testing, so we'll incubate in
the main kernel tree and backport at the -rc2 or so stage if no
problems turn up.

Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:10 -05:00
Adrian Bunk
81e56ded87 [SCSI] aic94xx: cleanups
- static functions in .c files shouldn't be marked inline
- make needlessly global code static
- remove the unused aic94xx_seq.c:asd_unpause_lseq()
- #if 0 other unused code

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:08 -05:00
Harvey Harrison
d70d4667e9 [SCSI] ch: fix sparse shadowed variable warnings
Replace the global err array with ch_err.
drivers/scsi/ch.c:271:6: warning: symbol 'err' shadows an earlier one
drivers/scsi/ch.c:116:3: originally declared here

Replace the temporary cmd buffer with ch_err to avoid shadowing the cmd
function parameter.
drivers/scsi/ch.c:724:11: warning: symbol 'cmd' shadows an earlier one
drivers/scsi/ch.c:596:20: originally declared here

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:08 -05:00
Adrian Bunk
8c5e03d3cf [SCSI] make scsi_end_bidi_request() static
This patch makes the needlessly global scsi_end_bidi_request() static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:08 -05:00
James Bottomley
f6b196a2f3 [SCSI] hptiop: fix header.context usage
header.context is a 64 bit field, but it's deliberately split into
context and context_hi32.  Thus cpu_to_le64 assignments are wrong on
this.  Replace them with the correct settings of both the low and high
words.

Cc: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:08 -05:00
James Bottomley
a579dab1c1 [SCSI] wd33c93: fix up cut and paste error
The three drivers: a2091, gvp11 and mvme147 have erroneous references
to a3000_host.  Fix these to be references to the proper host
variable.

Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:07 -05:00
FUJITA Tomonori
8dea0d02f8 [SCSI] scsi_debug: remove unnecessary function declarations
This patch removes function declarations with moving some
functions. This cleans up them a bit to silence checkpatch.pl. There
is no functional change.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:07 -05:00
FUJITA Tomonori
5f2578e579 [SCSI] scsi_debug: support large non-fake virtual disk
Currently, the maximum amount of RAM that scsi_debug can allocate is
4GB. This patch increases it to 2TB; scsi_debug can allocates 2TB
memory and export it as if it were 2TB scsi disk.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:07 -05:00
FUJITA Tomonori
1978910062 [SCSI] scsi_debug: remove the duplicated code in resp_read and resp_write
resp_read and resp_write performs READ_* and WRITE_* commands
respectively. This sweeps up the similar code in them.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:06 -05:00
FUJITA Tomonori
28898873b0 [SCSI] scsi_debug: sweep up sdebug_capacity calculation
sdebug_capacity is calculated at five different places. This add a
helper function to calculate sdebug_capacity to sweep up the
duplicatated code.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:06 -05:00
FUJITA Tomonori
f58b0efbf4 [SCSI] scsi_debug: remove unnecessary sdebug_store_size
sdebug_store_size doesn't need to be static global. It's used at
startup only.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:06 -05:00
Denis Cheng
540d9b40fa [SCSI] hosts.c: removed one unneeded shost->active_mode assignment
In the following if/else statement, shost->active_mode will always be set,
so this assignment is unneeded.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:05 -05:00
Marcin Slusarz
36b8dd1bf7 [SCSI] aacraid, ips: leX_add_cpu conversion
replace all:
little_endian_variable = cpu_to_leX(leX_to_cpu(little_endian_variable) +
					expression_in_cpu_byteorder);
with:
	leX_add_cpu(&little_endian_variable, expression_in_cpu_byteorder);
generated with semantic patch

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: "Salyzyn, Mark" <Mark_Salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:05 -05:00
FUJITA Tomonori
d5cdc9898b [SCSI] scsi_debug: fix lba and data length calculation bugs
For example, `modprobe scsi_debug virtual_gb=1100` gives:

scsi7 : scsi_debug, version 1.81 [20070104], dev_size_mb=8, opts=0x0
scsi 7:0:0:0: Direct-Access     Linux    scsi_debug       0004 PQ: 0 ANSI: 5
sd 7:0:0:0: [sdc] 2306867200 512-byte hardware sectors (1181116 MB)
sd 7:0:0:0: [sdc] Write Protect is off
sd 7:0:0:0: [sdc] Mode Sense: 73 00 10 08
sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA
sd 7:0:0:0: [sdc] 2306867200 512-byte hardware sectors (1181116 MB)
sd 7:0:0:0: [sdc] Write Protect is off
sd 7:0:0:0: [sdc] Mode Sense: 73 00 10 08
sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA
 sdc: unknown partition table
sd 7:0:0:0: [sdc] Attached SCSI disk
sd 7:0:0:0: Attached scsi generic sg6 type 0
end_request: I/O error, dev sdc, sector 2306867072
Buffer I/O error on device sdc, logical block 288358384
end_request: I/O error, dev sdc, sector 2306867072
Buffer I/O error on device sdc, logical block 288358384
end_request: I/O error, dev sdc, sector 2306867192

(snip)

Note that this converts all the calculations (including the correct
calculations) for unification.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:03 -05:00
FUJITA Tomonori
53df8ba801 [SCSI] ps3rom: use scsi_build_sense_buffer
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:02 -05:00
FUJITA Tomonori
11002fbcb4 [SCSI] stex: use scsi_build_sense_buffer
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:02 -05:00
FUJITA Tomonori
a34c4e9836 [SCSI] scsi_debug: use scsi_build_sense_buffer
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:01 -05:00
FUJITA Tomonori
3bc6a26192 [SCSI] add scsi_build_sense_buffer helper function
This adds scsi_build_sense_buffer, a simple helper function to build
sense data in a buffer.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:01 -05:00
Thomas Bogendoerfer
be3cb3d84b [SCSI] WD33C93: let platform stub override no_sync/fast/dma_mode
SGI machines with WD33C93 allow usage of burst mode DMA, which increases
performance noticable. To make this selectable by the sgiwd93 stub,
setting the values for no_sync, fast and dma_mode has been moved to the
individual platform stubs.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:01 -05:00
David C Somayajulu
9d56291366 [SCSI] qla4xxx: fix scsi command completion, lun reset and target reset code
This patch contains the following:

1. when hba completion status is good, check for iscsi transport
   errors (underflow/overflow) prior to checking the scsi status

2. New firmware requires that one marker iocb be issued for each task
   management command. The patch issues marker iocb immediately
   following a LUN or Target reset.

Signed-off-by: David C Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:00 -05:00
bo yang
af7a5647c0 [SCSI] megaraid_sas: Add the new controller(1078DE) support to the driver
Add the new Controller (ID: 007C) support to driver.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:00 -05:00
bo yang
d532dbe2cb [SCSI] megaraid_sas: Fix the frame count calculation
When Driver sent wrong frame count to firmware.  As this particular
command is sent to drive, FW is seeing continuous chip resets and so
the command will timeout.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:00 -05:00
bo yang
b70a41e077 [SCSI] megaraid_sas: rollback the sense info implementation
Sense buffer ptr data type in the ioctl path is reverted back to u32 *
as in previous versions of driver.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:00 -05:00
Denis Cheng
ccde6b8d62 [SCSI] 3w-9xxx, 3w-xxxx: memset not needed in probe
The memory return from scsi_host_alloc is alloced by kzalloc, which is
already zero initilized, so memset not needed.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Cc: Adam Radford <linuxraid@amcc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:18:59 -05:00
Roel Kluin
0b6c4b14cf [SCSI] aic7xxx: Test opcode, not definition in aicasm:type_check()
This fixes a bug that we treat all sequencer operations as ands and
never do the additional invalid bit checks non-and operations require
because the if () to determine this has an operand which is always
true at the end of the or statement.

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:18:59 -05:00
FUJITA Tomonori
639db475c8 [SCSI] scsi_debug: remove unnecessary function declarations
This patch removes lots of function declarations with moving
scsi_debug_queuecommand. This cleans up scsi_debug_queuecommand a bit
to silence checkpatch.pl

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:18:59 -05:00
FUJITA Tomonori
8b40228f3f [SCSI] scsi_debug: use list_for_each_entry_safe
This replaces list_for_each_safe and list_entry with
list_for_each_entry_safe.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:18:59 -05:00
FUJITA Tomonori
a75869d1ff [SCSI] scsi_debug: remove unnecessary condition test in devInfoReg
open_devip is always non NULL.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:18:58 -05:00
FUJITA Tomonori
5cb2fc0610 [SCSI] scsi_debug: create new scsi_debug devices at a single place
Two functions, sdebug_add_adapter and devInfoReg, creates new
scsi_debug devices. To simplify the code, this patch adds a new helper
function to create new scsi_debug devices (sdebug_device_create) and
converts both functions to use it.

I plan to add more to scsi_debug devices (e.g. using a thread for a
scsi_debug device for scalability testings). This patch enable me to
add such to just the new helper function instead of touching two
functions, sdebug_add_adapter and devInfoReg.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:18:58 -05:00
FUJITA Tomonori
f3df41cff4 [SCSI] scsi_debug: remove temporary hack around sscanf for negative values
sscanf can handle negative values.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:18:58 -05:00
James Bottomley
1c353f7d61 [SCSI] export command allocation and freeing functions independently of the host
This is needed by things like USB storage that want to set up static
commands for later use at start of day.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:18:57 -05:00
James Bottomley
e507e30b80 [SCSI] consolidate command allocation in a single place
Since the way we allocate commands with a separate sense buffer is
getting complicated, we should isolate setup and teardown to a single
routine so that if it gets even more complex, there's only one place
in the code that needs to be altered.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:17:30 -05:00
FUJITA Tomonori
035f5e0651 [SCSI] 3w-9xxx: use sg buffer copy helper functions
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:46 -05:00
FUJITA Tomonori
e943752ecf [SCSI] 3w-xxxx: use sg buffer copy helper functions
This rewrites tw_transfer_internal with scsi_sg_copy_from/to_buffer.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:46 -05:00
FUJITA Tomonori
31fe47d437 [SCSI] stex: use sg buffer copy helper functions
This replaces stex_internal_copy with scsi_sg_copy_to/from_buffer.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:46 -05:00
FUJITA Tomonori
d4345028d4 [SCSI] aacraid: use sg buffer copy helper functions
This replaces aac_internal_transfer with scsi_sg_copy_to/from_buffer.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:46 -05:00
FUJITA Tomonori
6690bae7e0 [SCSI] ips: use sg buffer copy helper funcitons
This rewrites ips_scmd_buf_write/read with scsi_sg_copy_from/to_buffer
respectively.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Salyzyn, Mark <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:46 -05:00
FUJITA Tomonori
944cf8b4cb [SCSI] ps3rom: use sg buffer copy helper funcitons
Note that if scsi_bufflen(cmd) is not zero, the command always has an
sg list. So this patch doesn't do the error checking in
fill_from_dev_buffer and fetch_to_dev_buffer did.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Looks-OK-to: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:45 -05:00
FUJITA Tomonori
21a6182924 [SCSI] scsi_debug: use sg buffer copy helper functions
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:45 -05:00
Matthew Wilcox
78b4b05db5 [SCSI] BusLogic: make FlashPoint support x86-32 only
We've verified that there are 64 bit and endianness problems in the
flashpoint driver.  Reverse the logic of CONFIG_OMIT_FLASHPOINT (make
it CONFIG_SCSI_FLASHPOINT) and make it depend on X86_32 so it can't
appear for any other architectures.  Long term, if someone chooses,
they could make FlashPoint 64 bit compliant (it looks like its a
question of fixing up the sizes in some of the packed descriptors)

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:44 -05:00
FUJITA Tomonori
2505873afe [SCSI] aic79xx: fix IOMMU mapping failure handling
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:44 -05:00
FUJITA Tomonori
647b242562 [SCSI] aic7xxx: fix IOMMU mapping failure handling
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:44 -05:00
Mike Christie
ce5450392f [SCSI] qla4xxx: Add target reset functionality
This patch adds target reset functionalty.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:43 -05:00
Mike Christie
30bd7df8ce [SCSI] scsi_error: add target reset handler
The problem is that serveral drivers are sending a target reset from the
device reset handler, and if we have multiple devices a target reset gets
sent for each device when only one would be sufficient. And if we do a target
reset it affects all the commands on the target so the device reset handler
code only cleaning up one devices's commands makes programming the driver a
little more difficult than it should be.

This patch adds a target reset handler, which drivers can use to send
a target reset. If successful it cleans up the commands for a devices
accessed through that starget.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:41 -05:00
Geert Uytterhoeven
f7441a791a [SCSI] ps3rom: Simplify fill_from_dev_buffer()
As we no longer need to calculate the data length of the whole scatterlist,
we can abort the loop earlier and coalesce req_len and act_len into one
variable, making fill_from_dev_buffer() more similar to fetch_to_dev_buffer().

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:41 -05:00
FUJITA Tomonori
d1e4c9c57c [SCSI] scsi_debug: use shost_priv macro
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:41 -05:00
FUJITA Tomonori
96ad0dfe83 [SCSI] scsi_debug: remove unnecessary checking
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:41 -05:00
FUJITA Tomonori
9e603ca06a [SCSI] scsi_debug: remove scsi_debug.h
scsi_debug.h just incldues some function declarations. This patch removes it
with moving the scsi_host_template.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:41 -05:00
FUJITA Tomonori
9ff26eefd4 [SCSI] scsi_debug: stop including drivers/scsi/scsi.h
This converts scsi_debug to include header files in include/scsi/
instead of drivers/scsi/scsi.h.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:40 -05:00
Andi Kleen
9924a781f3 [SCSI] Remove random noop unchecked_isa_dma users
Lots of drivers set it to 0. Remove that. Patch should be a nop.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:40 -05:00
FUJITA Tomonori
b271f1c881 [SCSI] aacraid: READ_CAPACITY_16 shouldn't trust allocation length in cdb
When aacraid spoofs READ_CAPACITY_16, it assumes that the data length
in the sg list is equal to allocation length in cdb. But sg can put
any value in scb so the driver needs to check both the data length in
the sg list and allocation length in cdb.

If allocation length is larger than the response length that the
driver expects, it clears the data buffer in the sg list to zero but
it doesn't need to do. Just setting resid is fine.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:40 -05:00
Kai Makisara
b174be02f3 [SCSI] st: show options currently set in sysfs
Show the current binary tape driver and mode options is sysfs. A file
(options) is created in each directory in /sys/class/scsi_tape. The files
contain masks showing the options. The mask bit definitions are the same as
used when setting the options using the MTSETDRVBUFFER function in the
MTIOCTOP ioctl (defined in include/linux/mtio.h). For example:
> cat /sys/class/scsi_tape/nst0/options
0x00000d07

[jejb: updated doc with correction from Randy Dunlap]

Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:40 -05:00
Kai Makisara
40f6b36c62 [SCSI] st: add option to use SILI in variable block reads
Add new option MT_ST_SILI to enable setting the SILI bit in reads in variable
block mode. If SILI is set, reading a block shorter than the byte count does
not result in CHECK CONDITION. The length of the block is determined using the
residual count from the HBA. Avoiding the REQUEST SENSE command for every
block speeds up some real applications considerably.

Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:39 -05:00
Boaz Harrosh
d35055a0f2 [SCSI] gdth: remove command accessors
These are no longer necessary.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Tested-by: Joerg Dorchain: <joerg@dorchain.net>
Tested-by: Stefan Priebe <s.priebe@allied-internet.ag>
Tested-by: Jon Chelton <jchelton@ffpglobal.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:39 -05:00
Darrick J. Wong
68066c3ed1 [SCSI] aic94xx: Use sas_request_addr() to provide SAS WWN if the adapter lacks one
If the aic94xx chip doesn't have a SAS address in the chip's flash memory,
make libsas get one for us.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:39 -05:00
Darrick J. Wong
45e6cdf414 [SCSI] libsas: Provide a transport-level facility to request SAS addrs
Provide a facility to use the request_firmware() interface to get a SAS
address from userspace.  This can be used by SAS LLDDs that cannot
obtain the address from the host adapter.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:38 -05:00
FUJITA Tomonori
7e23ea4884 [SCSI] ips: sg chaining support to the path to non I/O commands
I overlooked ips_scmd_buf_write and ips_scmd_buf_read when I converted
ips to use the data buffer accessors.

ips is unlikely to use sg chaining (especially in this path) since a)
this path is used only for non I/O commands (with little data
transfer), b) ips's sg_tablesize is set to just 17.

Thanks to Tim Pepper for testing this patch.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:36 -05:00
Jeff Garzik
cff2680643 [SCSI] gdth: convert to PCI hotplug API
- remove PCI device sort, which greatly simplifies PCI probe,
  permitting direct, per-HBA function calls rather than an indirect
  route to the same end result.

- remove need for pcistr[]

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:36 -05:00
Jeff Garzik
4c9c8d782c [SCSI] gdth: PCI probe cleanups, prep for PCI hotplug API conversion
- Reduce uses of gdth_pci_str::pdev, preferring a local variable
  (or function arg) 'pdev' instead.

- Reduce uses of gdth_pcistr array, preferring local variable
  (or function arg) 'pcistr' instead.

- Eliminate lone use of gdth_pci_str::irq, using equivalent
  pdev->irq instead

- Eliminate assign-only gdth_pci_str::io_mm

Note:  If the indentation seems weird, that's because a line was
converted from spaces to tabs, when it was modified.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:15:36 -05:00
Hugh Dickins
164fc5dcd6 scsi: fix sense_slab/bio swapping livelock
Since 2.6.25-rc7, I've been seeing an occasional livelock on one x86_64
machine, copying kernel trees to tmpfs, paging out to swap.

Signature: 6000 pages under writeback but never getting written; most
tasks of interest trying to reclaim, but each get_swap_bio waiting for a
bio in mempool_alloc's io_schedule_timeout(5*HZ); every five seconds an
atomic page allocation failure report from kblockd failing to allocate a
sense_buffer in __scsi_get_command.

__scsi_get_command has a (one item) free_list to protect against this,
but rc1's [SCSI] use dynamically allocated sense buffer
de25deb180 upset that slightly.  When it
fails to allocate from the separate sense_slab, instead of giving up, it
must fall back to the command free_list, which is sure to have a
sense_buffer attached.

Either my earlier -rc testing missed this, or there's some recent
contributory factor.  One very significant factor is SLUB, which merges
slab caches when it can, and on 64-bit happens to merge both bio cache
and sense_slab cache into kmalloc's 128-byte cache: so that under this
swapping load, bios above are liable to gobble up all the slots needed
for scsi_cmnd sense_buffers below.

That's disturbing behaviour, and I tried a few things to fix it.  Adding
a no-op constructor to the sense_slab inhibits SLUB from merging it, and
stops all the allocation failures I was seeing; but it's rather a hack,
and perhaps in different configurations we have other caches on the
swapout path which are ill-merged.

Another alternative is to revert the separate sense_slab, using
cache-line-aligned sense_buffer allocated beyond scsi_cmnd from the one
kmem_cache; but that might waste more memory, and is only a way of
diverting around the known problem.

While I don't like seeing the allocation failures, and hate the idea of
all those bios piled up above a scsi host working one by one, it does
seem to emerge fairly soon with the livelock fix.  So lacking better
ideas, stick with that one clear fix for now.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Peter Zijlstra <a.p.ziljstra@chello.nl>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-06 16:10:08 -07:00
Ke Wei
0b977608e6 [SCSI] mvsas: check subsystem id
add support for mv6480 chip which subsystem id is 6480 in spite of device id is 6440.

Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-28 12:32:22 -05:00
Ke Wei
e9ff91b692 [SCSI] mvsas: get phy info.
removed unused code and attached SATA address makes use of port id.
enable HBA interrupt after calling sas_register_ha();

Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-28 12:32:09 -05:00
Ke Wei
963829e650 [SCSI] mvsas: fix the buffer of rx DMA overflow bug
fix the buffer of rx DMA overflow bug.
fix default queue depth.

Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-28 12:31:54 -05:00
Ke Wei
8121ed4202 [SCSI] mvsas: retry aborting task.
Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-28 12:31:40 -05:00
Ke Wei
4e52fc0a0a [SCSI] mvsas: check hd whether unplugged
if unplugged, driver's queuecommand function will return SAS_PHY_DOWN.
task->lldd_task is used for saving its slot info.

Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-28 12:31:25 -05:00
Ke Wei
1fce5e5da0 [SCSI] mvsas : interrupt handling
When a slot is busy, we will not free this slot until slot reset is
completed.  When unplugged the disk, we should release all command
tasks with unplugged port that have been sent.

If MVS_USE_TASKLET is defined, we can enable tasklet. Default is off.

Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-28 12:31:03 -05:00
Ke Wei
ee1f1c2ef9 [SCSI] mvsas: a tag handler implementation
add a new tag handler to create slot num. When a slot num is busy, new
task can't hit this bit which was already used.  plumb in phy speeds.

Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-28 12:27:54 -05:00
Ke Wei
0eb9ddd82a [SCSI] mvsas: fill in error info record and phy mode6 bits.
and remove some unused members from struct.

Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-28 12:27:16 -05:00
James Bottomley
15c73d5afd [SCSI] libsas: Warn if ATA device detected but CONFIG_SCSI_SAS_ATA not set
We give a very cryptic error if an ATA device is seen on a SAS port
but libsas isn't compiled to include libata to handle them.  Add an
extra warning to explain specifically what the problem is.

Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-27 15:12:16 -07:00
James Smart
77cca462c6 [SCSI] hosts.c: fixes for "no error" reported after error scenarios
This patch corrects some cases in scsi_add_host() that fail, but the "error"
return code was not reset after a prior use which set it to a non-error value.

Patch cut against scsi-rc-fixes-2.6

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-27 15:09:54 -07:00
James Bottomley
0feed274d2 Revert "[SCSI] fix bsg queue oops with iscsi logout"
This reverts commit 4b6f5b3a99.

bsg takes a reference to the underlying generic device, so it's
impossible to unregister bsg in the device release routine.

Acked-by: FUJITA Tomonori <tomof@acm.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-26 09:09:19 -07:00
Akinobu Mita
28aef2f7d9 [SCSI] a100u2w: fix bitmap lookup routine
This patch is only compile tested.

It seems that bitmap lookup routine for allocation_map in
a100u2w driver is simply wrong.

It cannot lookup more than first 32 bits. If all first 32 bits
are set, it just returns 33-th orc_scb even though the 33-th bit
is not set.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Tested-by: Alan Cox <alan@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-20 09:19:25 -05:00
Kay Sievers
4d1566ed21 [SCSI] fix media change events for polled devices
Commit:
  a341cd0f (SCSI: add asynchronous event notification API)
breaks:
  285e9670 (sr,sd: send media state change modification events)
by introducing an event filter, which is removed here, to make
events, we are depending on, happen again.

Fix this by removing the event filter.  It's pretty much broken at the
moment, since a user can't set it (the attribute being read only).  A
proper fix will be to make the event discriminator distinguish between
AN and Polled media change events.

Cc: David Zeuthen <david@fubar.dk>
Cc: kristen accardi <kaccardi@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-19 11:51:28 -05:00
Kay Sievers
c02e600280 [SCSI] sd, sr: do not emit change event at device add
Initialize the "state changed" flag, so we do not send a change event
immediately after registering a new device.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-19 11:28:56 -05:00
Sven Schnelle
1b96f8955a [SCSI] gdth: Allocate sense_buffer to prevent NULL pointer dereference
Fix NULL pointer dereference during execution of Internal commands,
where gdth only allocates scp, but not scp->sense_buffer. The rest of
the code assumes that sense_buffer is allocated, which leads to a kernel
oops e.g. on reboot (during cache flush).

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-14 20:31:18 -05:00
nickcheng
4d3995b14b [SCSI] arcmsr: fix iounmap error for Type B adapter
The Type B Adapter teardown does iounmap on pointers subtracted by a
constant offset.  Since the offset is in bytes, we need the pointers to
be of type void * not uint32_t * so the subtraction is done in the
correct units and we iounmap the correct area.

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-14 15:25:26 -05:00
Mike Christie
4b6f5b3a99 [SCSI] fix bsg queue oops with iscsi logout
Delay bsg unregistration, because we want to wait until all the request/cmds
have released their reference.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-13 16:47:05 -05:00
James Bottomley
67951f6380 [SCSI] Fix dependency problems in SCSI drivers
We have several drivers that don't list SCSI as a dependency in
Kconfig.  That leads to them potentially being selected as Y even if
SCSI is M (which will produce a build failure).  Fix this by making
the if SCSI_LOWLEVEL that goes around all the drivers a tristate
forcing them all automatically to inherit the value of SCSI.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-08 18:30:19 -06:00
Matthew Wilcox
951b62c11e [SCSI] advansys: Fix bug in AdvLoadMicrocode
buf[i] can be up to 0xfd, so doubling it and assigning the result to an
unsigned char truncates the value.  Just use an unsigned int instead;
it's only a temporary.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-07 10:05:43 -06:00
Linus Torvalds
103926c689 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (27 commits)
  [SCSI] mpt fusion: don't oops if NumPhys==0
  [SCSI] iscsi class: regression - fix races with state manipulation and blocking/unblocking
  [SCSI] qla4xxx: regression - add start scan callout
  [SCSI] qla4xxx: fix host reset dpc race
  [SCSI] tgt: fix build errors when dprintk is defined
  [SCSI] tgt: set the data length properly
  [SCSI] tgt: stop zero'ing scsi_cmnd
  [SCSI] ibmvstgt: set up scsi_host properly before __scsi_alloc_queue
  [SCSI] docbook: fix fusion source files
  [SCSI] docbook: fix scsi source file
  [SCSI] qla2xxx: Update version number to 8.02.00-k9.
  [SCSI] qla2xxx: Correct usage of inconsistent timeout values while issuing ELS commands.
  [SCSI] qla2xxx: Correct discrepancies during OVERRUN handling on FWI2-capable cards.
  [SCSI] qla2xxx: Correct needless clean-up resets during shutdown.
  [SCSI] arcmsr: update version and changelog
  [SCSI] ps3rom: disable clustering
  [SCSI] ps3rom: fix wrong resid calculation bug
  [SCSI] mvsas: fix phy sas address
  [SCSI] gdth: fix to internal commands execution
  [SCSI] gdth: bugfix for the at-exit problems
  ...
2008-03-05 17:49:59 -08:00
Mike Christie
45ab33b6c1 [SCSI] iscsi class: regression - fix races with state manipulation and blocking/unblocking
For qla4xxx, we could be starting a session, but some error (network,
target, IO from a device that got started, etc) could cause the session
to fail and curring the block/unblock and state manipulation could race
with each other. This patch just has those operations done in the
single threaded iscsi eh work queue, so that way they are serialized.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-05 12:04:09 -06:00
Mike Christie
024f801f52 [SCSI] qla4xxx: regression - add start scan callout
We are seeing EXIST errors from sysfs during device addition.
We need a start scan callout so we do not start scanning sessions
found during hba setup, before the async scsi scan code is ready.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: David C Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-05 12:03:54 -06:00
Mike Christie
50a29aec9c [SCSI] qla4xxx: fix host reset dpc race
The host reset callout could be starting to reset the hba at the same
time the dpc thread is. This creates lots of problems because they both
want to do wierd things with the firmware and interrupts, etc.

This patch just has the host reset function fully shutdown the dpc
thread before resetting the hba.

This patch also moves the setting of the session online bit to fix
a potential race with the dpc thread and iscsi recovery thread.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: David C Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-05 12:03:17 -06:00
Jens Axboe
e97a294ef6 scsi: missing add of padded bytes to io completion byte count
Original patch from Tejun Heo <htejun@gmail.com> but should use ->extra_len
and not ->data_len, as we would then overshoot the original request size.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-03-04 20:24:05 +01:00
FUJITA Tomonori
21f1e91d4b [SCSI] tgt: fix build errors when dprintk is defined
drivers/scsi/ibmvscsi/ibmvstgt.c: In function 'ibmvstgt_cmd_done':
drivers/scsi/ibmvscsi/ibmvstgt.c:292: error: 'cmd' undeclared (first use in this function)
drivers/scsi/ibmvscsi/ibmvstgt.c:292: error: (Each undeclared identifier is reported only once
drivers/scsi/ibmvscsi/ibmvstgt.c:292: error: for each function it appears in.)

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:19:52 -06:00
FUJITA Tomonori
cccddc2d15 [SCSI] tgt: set the data length properly
scsi_tgt uses REQ_TYPE_BLOCK_PC so scsi_init_io doesn't set the length
for us. scsi_tgt needs to do it by itself.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:19:35 -06:00
FUJITA Tomonori
36802e9989 [SCSI] tgt: stop zero'ing scsi_cmnd
The scsi midlayer allocates scsi_cmnd->sense_buffer dynamically so we
can't initialize scsi_cmnd (the midlyaer does for us).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:19:18 -06:00
FUJITA Tomonori
b560665ce5 [SCSI] ibmvstgt: set up scsi_host properly before __scsi_alloc_queue
Before calling __scsi_alloc_queue, scsi_host->shost_gendev.parent must
be initialized properly.

This patch moves __scsi_alloc_queue after scsi_add_host (like
initiator drivers do).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:19:03 -06:00
Randy Dunlap
79f5bb2839 [SCSI] docbook: fix scsi source file
Fix docbook problem in SCSI source files.
These cause the generated docbook to be incorrect.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:17:14 -06:00
Andrew Vasquez
ca3aefb822 [SCSI] qla2xxx: Update version number to 8.02.00-k9.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:11:50 -06:00
Andrew Vasquez
00a537b820 [SCSI] qla2xxx: Correct usage of inconsistent timeout values while issuing ELS commands.
The original code would incorrectly hardcode ELS timeout values
rather than using the traditional '2 * r_a_tov' value.  In some
cases, the hardcoded values would be larger than the
mailbox-command-timeout and result in a needless BIG_HAMMER (ISP
reset), the typical recovery mechanism employed in such cases.

The second defect in the original code was in the assignment of
the default 'ha->r_a_tov' to twice the traditional value.
Correct this by setting the value to 10 seconds.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:11:35 -06:00
Andrew Vasquez
3e8ce320cf [SCSI] qla2xxx: Correct discrepancies during OVERRUN handling on FWI2-capable cards.
For recent ISPs, software must detect OVERRUN conditions by
checking the SS_RESIDUAL_OVER bit during CS_COMPLETE handling.
Update the driver to perform this check, which is consistent with
what earlier firmwares did by explicitly cracking open the
FCP_RSP statuses and returning an CS_DATA_OVERRUN.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:11:18 -06:00
Andrew Vasquez
7c7f1f299b [SCSI] qla2xxx: Correct needless clean-up resets during shutdown.
There's no point in hitting the RISC with what will most
assuredly be an unsucessful reset of the RISC hardware if the
initial stop-firmware mailbox command fails with a time-out
status.  Instead, to avoid what could amount to a lengthy
stop-firmware/detect-failure/reset-risc loop, continue with
driver unloading and discard the stop-firmware requirement.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:10:58 -06:00
Nick Cheng
ba1cb4618b [SCSI] arcmsr: update version and changelog
The fix up from Daniel Drake for replacing GFP_DMA with something
more sensible has gone in here:

commit 69e562c234
Author: Daniel Drake <dsd@gentoo.org>
Date:   Wed Feb 20 13:29:05 2008 +0000

    [SCSI] arcmsr: fix message allocation

add a change log and update the version for this.

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:10:22 -06:00
FUJITA Tomonori
57fd2b6c89 [SCSI] ps3rom: disable clustering
ps3rom does:

scsi_for_each_sg(cmd, sgpnt, scsi_sg_count(cmd), k) {
	kaddr = kmap_atomic(sg_page(sgpnt), KM_IRQ0);

We cannot do something like that with the clustering enabled (or we
can use scsi_kmap_atomic_sg).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:08:13 -06:00
FUJITA Tomonori
67768f675f [SCSI] ps3rom: fix wrong resid calculation bug
sg driver rounds up the length in struct scatterlist to be a multiple
of 512 in some conditions. So LLDs can't use the data length in a sg
list to calculate residual. Instead, the length in struct scsi_cmnd
should be used.

[Geert: the variable buflen already contains scsi_bufflen(cmd)]

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-03-03 13:06:37 -06:00
Randy Dunlap
e59e4a0972 docbook: fix scsi source file
Fix docbook problem in SCSI source files.
These cause the generated docbook to be incorrect.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-03 10:47:13 -08:00
Ke Wei
00da714b31 [SCSI] mvsas: fix phy sas address
The phy sas address is showing wrongly (wrong endianness).  Fix up the
endian transforms to make this correct.

Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-29 11:03:20 -06:00
Boaz Harrosh
ee54cc6af9 [SCSI] gdth: fix to internal commands execution
The recent patch named:
  [SCSI] gdth: !use_sg cleanup and use of scsi accessors

has done a bad job in handling internal commands issued by gdth_execute().

Internal commands are issued with device gdth_cmd_str ready made directly
to the card, without any mapping or translations of scsi commands. So here
I added a gdth_cmd_str pointer to the gdth_cmndinfo private structure which
is then copied directly to host.

following this patch is a cleanup that removes the home cooked accessors
and reverts them to regular scsi_cmnd accessors. Since they are not used
anymore. After review maybe the 2 patches should be squashed together.

FIXME: There is still a problem with gdth_get_info(). as reported there
   is a WARN_ON trigerd in dma_free_coherent() when doing:
   $ cat /proc/sys/gdth/0

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Tested-by: Joerg Dorchain: <joerg@dorchain.net>
Tested-by: Stefan Priebe <s.priebe@allied-internet.ag>
Tested-by: Jon Chelton <jchelton@ffpglobal.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-27 15:54:26 -08:00
Boaz Harrosh
b31ddd31c2 [SCSI] gdth: bugfix for the at-exit problems
gdth_exit would first remove all cards then stop the timer
and would not sync with the timer function. This caused a crash
in gdth_timer() when module was unloaded.
So del_timer_sync the timer before we delete the cards.

also the reboot notifier function would crash. So clean
that up and fix the crashes.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Tested-by: Joerg Dorchain: <joerg@dorchain.net>
Tested-by: Stefan Priebe <s.priebe@allied-internet.ag>
Tested-by: Jon Chelton <jchelton@ffpglobal.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-27 15:53:43 -08:00
Mike Christie
31ed0bf439 [SCSI] iscsi regression: check for zero max session cmds
The old tools did not set max session cmds. This is a regression.
I removed the check when merging the power of 2 patch.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-27 15:52:46 -08:00
James Bottomley
e2396f1e4e [SCSI] aic94xx: fix TMF ascb handling to prevent sequencer panic
This is a particularly nasty bug.  The problem is that if any internal
ascb times out, currently we free it even though it's pending at the
sequencer.  This results in the sequencer getting terminally confused
and the error message:

BUG:sequencer:dl:no ascb

Being returned when it comes back.  The way to fix this is to manage
freeing the ascb from the tasklet completion routine, so that we only
free it when the sequencer actually returns it.  The code is also
altered to use on stack completions and transfer variables.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-24 00:40:57 -06:00
James Bottomley
8de3ef25a1 [SCSI] libsas: misc fixes to the eh path
- Correct one use after free of the sas task
- update the reset required path to move straight to LUN reset
- make the bigger hammer actually reset something instead of just trying
  to clear all the tasks.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-23 23:53:20 -06:00
James Bottomley
a29c051536 [SCSI] libsas: use the supplied address for SATA devices rather than changing it
Once the phy reset is plumbed in properly, SATA error handling fails
nastily because we change the port attached_sas_address using the WWN
field of the IDENTIFY message.  This is a nice thing to do in theory,
but it really destroys hotplug because any event on the port causes an
automatic mismatch between the sas_address the phy just picked up and
the one we propagate into the port.  However ugly they are, we have to
stick with the sas addresses made up by the phys and expanders.

Also does a few cosmetic changes to the way port printing is done to
make it clearer how a port is formed.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-23 23:53:04 -06:00
James Bottomley
63edf49e67 [SCSI] aic94xx: plumb in I_T_nexus_reset task management function
Currently aic94xx has no exported I_T_nexus_reset function.  This is a
bit of a huge problem, since sas_ata relies on this function to
perform an ATA phy reset and also it means that if abort fails, we
really have no bigger hammer to hit everything with.

Plumb in the I_T_nexus_reset by quiescing the sequencer, sending the
correct phy reset (link for ATA and hard for SAS) and then carefully
resuming the sequencer again.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-23 23:52:46 -06:00
James Bottomley
5319578ca3 [SCSI] libsas: export sas_find_local_phy function
This is needed by the to be added I_T reset function in aic94xx.  It
needs to know the local phy so it can send a link or hard reset along
the path.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-23 23:52:30 -06:00
James Bottomley
eea5ff7bde [SCSI] mvsas: remove execute permission from file
mvsas.c picked up execute permissions.  Move it back to being a plane
old file.

James Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-23 23:51:00 -06:00
Oliver Pinter
42e6de0e60 fix vmsas.c file permissions
Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 19:49:34 -08:00
Jeff Garzik
0a3716eb04 mvsas: fix build warning, clean prototypes
- Fix build 'make randconfig' build warning spotted by Toralf Foerster:

drivers/scsi/mvsas.c: In function 'mvs_hexdump':
drivers/scsi/mvsas.c:715: error: implicit declaration of function 'isalnum'

- Remove unneeded prototypes (spotted by hch)

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:52:36 -08:00
Linus Torvalds
b23c9cc0ce Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (25 commits)
  [SCSI] qlogicpt: section fixes
  [SCSI] mvsas: convert from rough draft to working driver
  [SCSI] mvsas: Add Marvell 6440 SAS/SATA driver
  [SCSI] libsas: correctly flush the LU queue on error recovery
  [SCSI] aic94xx: fix sequencer hang on error recovery
  [SCSI] st: compile fix when DEBUG set to one
  [SCSI] stex: stex_internal_copy should be called with sg_count in struct st_ccb
  [SCSI] stex: stex_direct_copy shouldn't call dma_map_sg
  [SCSI] lpfc: Balance locking
  [SCSI] qla4xxx: fix up residual handling
  [SCSI] libsas: fix error handling
  [SCSI] arcmsr: fix message allocation
  [SCSI] mptbase: fix use-after-free's
  [SCSI] iscsi transport: make 2 functions static
  [SCSI] lpfc: make lpfc_disable_node() static
  [SCSI] ips: fix data buffer accessors conversion bug
  [SCSI] gdth: don't call pci_free_consistent under spinlock
  [SCSI] qla2xxx: fix compile warning for printk format
  [SCSI] aic7xx: mitigate HOST_MSG_LOOP invalid SCB ff panic
  [SCSI] scsi_debug: disable clustering
  ...
2008-02-23 12:29:16 -08:00
Rafael J. Wysocki
3a2d5b7001 PM: Introduce PM_EVENT_HIBERNATE callback state
During the last step of hibernation in the "platform" mode (with the
help of ACPI) we use the suspend code, including the devices'
->suspend() methods, to prepare the system for entering the ACPI S4
system sleep state.

But at least for some devices the operations performed by the
->suspend() callback in that case must be different from its operations
during regular suspend.

For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and
pass it to the device drivers' ->suspend() methods during the last phase
of hibernation, so that they can distinguish this case and handle it as
appropriate.  Modify the drivers that handle PM_EVENT_SUSPEND in a
special way and need to handle PM_EVENT_HIBERNATE in the same way.

These changes are necessary to fix a hibernation regression related
to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 10:40:04 -08:00