FUJITA Tomonori [Mon, 31 Mar 2008 01:03:38 +0000 (10:03 +0900)]
[SCSI] bsg: takes a ref to struct device in fops->open
bsg_register_queue() takes a ref to struct device that a caller
passes. For example, bsg takes a ref to the sdev_gendev for scsi
devices. However, bsg doesn't inrease the refcount in fops->open. So
while an application opens a bsg device, the scsi device that the bsg
device holds can go away (bsg also takes a ref to a queue, but it
doesn't prevent the device from going away).
With this patch, bsg increases the refcount of struct device in
fops->open and decreases it in fops->release.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Martin Peschke [Wed, 16 Apr 2008 22:08:03 +0000 (00:08 +0200)]
[SCSI] zfcp: fix compiler warning caused by poking inside new semaphore (linux-next)
as seen in linux-next tree:
drivers/s390/scsi/zfcp_dbf.c: In function ‘zfcp_rec_dbf_event_thread’:
drivers/s390/scsi/zfcp_dbf.c:697: warning: passing argument 1 of ‘atomic_read’
from incompatible pointer type
Paul Bolle [Wed, 16 Apr 2008 12:43:00 +0000 (14:43 +0200)]
[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>
Grant Grundler [Sat, 5 Apr 2008 16:14:22 +0000 (10:14 -0600)]
[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>
James Smart [Mon, 7 Apr 2008 14:16:05 +0000 (10:16 -0400)]
[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>
James Smart [Mon, 7 Apr 2008 14:16:00 +0000 (10:16 -0400)]
[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>
James Smart [Mon, 7 Apr 2008 14:15:56 +0000 (10:15 -0400)]
[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>
Seokmann Ju [Thu, 3 Apr 2008 20:13:31 +0000 (13:13 -0700)]
[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:
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>
Seokmann Ju [Thu, 3 Apr 2008 20:13:30 +0000 (13:13 -0700)]
[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>
Seokmann Ju [Thu, 3 Apr 2008 20:13:29 +0000 (13:13 -0700)]
[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>
Seokmann Ju [Thu, 3 Apr 2008 20:13:28 +0000 (13:13 -0700)]
[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>
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>
Ravi Anand [Thu, 3 Apr 2008 20:13:25 +0000 (13:13 -0700)]
[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>
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>
Andrew Vasquez [Thu, 3 Apr 2008 20:13:23 +0000 (13:13 -0700)]
[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>
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>
Andrew Vasquez [Thu, 3 Apr 2008 20:13:20 +0000 (13:13 -0700)]
[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>
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>
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>
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>
James Bottomley [Thu, 3 Apr 2008 17:28:20 +0000 (12:28 -0500)]
[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>
James Bottomley [Thu, 3 Apr 2008 14:04:31 +0000 (09:04 -0500)]
[SCSI] libsas: fix missing inlines in header file
Two functions in include/scsi/sas_ata.h don't have static inlines
leading to problems if they're built in:
On Thu, 2008-04-03 at 14:06 +0200, Toralf Förster wrote:
> drivers/scsi/mvsas.o: In function `sas_ata_init_host_and_port':
> mvsas.c:(.text+0x0): multiple definition of `sas_ata_init_host_and_port'
> drivers/scsi/libsas/built-in.o:(.text+0x37f4): first defined here
> drivers/scsi/mvsas.o: In function `sas_ata_task_abort':
> mvsas.c:(.text+0x7): multiple definition of `sas_ata_task_abort'
> drivers/scsi/libsas/built-in.o:(.text+0x37fb): first defined here
> make[2]: *** [drivers/scsi/built-in.o] Error 1
> make[1]: *** [drivers/scsi] Error 2
> make: *** [drivers] Error 2
Add the correct static inline modifiers.
Tested-by: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
James Bottomley [Wed, 2 Apr 2008 15:05:48 +0000 (10:05 -0500)]
[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>
James Bottomley [Wed, 2 Apr 2008 23:11:52 +0000 (18:11 -0500)]
[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.
Martin Peschke [Mon, 31 Mar 2008 09:15:29 +0000 (11:15 +0200)]
[SCSI] zfcp: Shorten excessive names in debug trace.
Saving on line breaks, improving readability, by shortening excessive
function names and identifiers, by simplifying some functions call
chains, and by simplifying nesting of some data structure.
Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Martin Peschke [Mon, 31 Mar 2008 09:15:23 +0000 (11:15 +0200)]
[SCSI] zfcp: simplify zfcp_dbf_timestamp()
Change zfcp_dbf_timestamp() so that it just calculates timespec from
timestamp. First step to be able to rip this code out of zfcp.
Besides, this change makes it easier to rip out old-style debug view
functions.
Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Adrian Bunk [Fri, 28 Mar 2008 21:48:34 +0000 (14:48 -0700)]
[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>
Harvey Harrison [Tue, 1 Apr 2008 05:05:30 +0000 (22:05 -0700)]
[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>
James Bottomley [Sun, 30 Mar 2008 17:36:26 +0000 (12:36 -0500)]
[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>
FUJITA Tomonori [Sat, 29 Mar 2008 15:59:58 +0000 (00:59 +0900)]
[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>
FUJITA Tomonori [Sat, 29 Mar 2008 15:59:57 +0000 (00:59 +0900)]
[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>
Martin Peschke [Thu, 27 Mar 2008 13:22:04 +0000 (14:22 +0100)]
[SCSI] zfcp: Add trace records for recovery actions.
This patch writes trace records for various phases of a recovery action:
action being created, action being processed, action continueing
asynchronously, action gone, action timed out, action dismissed etc.
Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Martin Peschke [Thu, 27 Mar 2008 13:22:02 +0000 (14:22 +0100)]
[SCSI] zfcp: Add traces for state changes.
This patch writes a trace record which provides information about state
changes for adapters, ports and units, e.g. target failure, targets becoming
online, targets being temporarily blocked due to pending recovery, targets
which have been recovered successfully etc.
Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Martin Peschke [Thu, 27 Mar 2008 13:21:58 +0000 (14:21 +0100)]
[SCSI] zfcp: Add qtcb dump to hba debug trace
This patch adds per request hardware debugging data to the trace
record which is written per request. It's a replacement for some sad
kernel message based debugging code. Considering the amount of trace
data, printk() is not suitable for this stuff. Writing binary traces
is more efficient. In addition we got all information in one place.
The QTCB trace data is only dumped for requests other than SCSI
requests. Otherwise we would flood the trace ring buffer. We are
mostly interested in non-SCSI, recovery related requests here anyway.
This patch also works around a known hardware bug. It truncates QTCB
traces so that we do not save unused areas of the hardware trace.
Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
James Bottomley [Sun, 30 Mar 2008 16:38:07 +0000 (11:38 -0500)]
[SCSI] mpt fusion: fix up msi_enable in mpt_suspend
There's a problem with the combination of the upstream power
management fixes and the enabling of MSI by default in that the
suspend path still uses the global variable. Convert it to check
ioc->msi_enable.
FUJITA Tomonori [Tue, 25 Mar 2008 00:26:52 +0000 (09:26 +0900)]
[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>
[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>
Michael Reed [Thu, 20 Mar 2008 22:32:05 +0000 (17:32 -0500)]
[SCSI] mptsas: do not use ioc->handle to locate hba portinfo structure
While performing hardware raid reset testing via the raid's client, I
noticed that sometimes, following the reset, that there would be more
raid targets in the lsscsi output than there actually were raid
targets. I tracked this down to the following issue.
Fusion cannot always find the mptsas_portinfo structure for the hba
because it uses the handle stored in ioc->handle to locate it. The
problem is that the firmware can change the handle associated with the
hba when h/w raid is reset (via the raid client). When this happens,
the driver will allocate another mptsas_portinfo structure and link it
into the chain of said structures. This ultimately causes confusion
within the driver resulting in targets not being removed when they
should be.
Eric Moore pointed out that the hba's portinfo structure is always the
first structure on the sas_topology list. This patch modifies
mptsas.c to access the hba's portinfo structure by taking the first
structure on said list.
Signed-off-by: Michael Reed <mdr@sgi.com> Acked-by: "Moore, Eric" <Eric.Moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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>
bo yang [Mon, 17 Mar 2008 07:36:43 +0000 (03:36 -0400)]
[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>
Roel Kluin [Mon, 28 Jan 2008 13:09:54 +0000 (14:09 +0100)]
[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>
FUJITA Tomonori [Thu, 20 Mar 2008 02:09:19 +0000 (11:09 +0900)]
[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>
FUJITA Tomonori [Thu, 20 Mar 2008 02:09:16 +0000 (11:09 +0900)]
[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>
James Bottomley [Thu, 13 Mar 2008 16:16:33 +0000 (11:16 -0500)]
[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>
FUJITA Tomonori [Sun, 9 Mar 2008 04:44:35 +0000 (13:44 +0900)]
[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>
projects / linux-2.6 / log