History log of /drivers/scsi/ultrastor.c
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
fad4dab5e44e10acf6b0235e469cb8e773b58e31 18-May-2011 Samuel Thibault <samuel.thibault@ens-lyon.org> [SCSI] Fix Ultrastor asm snippet

Commit 1292500b replaced

"=m" (*field) : "1" (*field)

with

"=m" (*field) :

with comment "The following patch fixes it by using the '+' operator on
the (*field) operand, marking it as read-write to gcc."
'+' was actually forgotten. This really puts it.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <jbottomley@parallels.com>
/drivers/scsi/ultrastor.c
ca444564a947034557a85357b3911d067cac4b8f 25-Mar-2011 Jean Delvare <khali@linux-fr.org> x86: Stop including <linux/delay.h> in two asm header files

Stop including <linux/delay.h> in x86 header files which don't
need it. This will let the compiler complain when this header is
not included by source files when it should, so that
contributors can fix the problem before building on other
architectures starts to fail.

Credits go to Geert for the idea.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: James E.J. Bottomley <James.Bottomley@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
LKML-Reference: <20110325152014.297890ec@endymion.delvare>
[ this also fixes an upstream build bug in drivers/media/rc/ite-cir.c ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
/drivers/scsi/ultrastor.c
f281233d3eba15fb225d21ae2e228fd4553d824a 16-Nov-2010 Jeff Garzik <jeff@garzik.org> SCSI host lock push-down

Move the mid-layer's ->queuecommand() invocation from being locked
with the host lock to being unlocked to facilitate speeding up the
critical path for drivers who don't need this lock taken anyway.

The patch below presents a simple SCSI host lock push-down as an
equivalent transformation. No locking or other behavior should change
with this patch. All existing bugs and locking orders are preserved.

Additionally, add one parameter to queuecommand,
struct Scsi_Host *
and remove one parameter from queuecommand,
void (*done)(struct scsi_cmnd *)

Scsi_Host* is a convenient pointer that most host drivers need anyway,
and 'done' is redundant to struct scsi_cmnd->scsi_done.

Minimal code disturbance was attempted with this change. Most drivers
needed only two one-line modifications for their host lock push-down.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
/drivers/scsi/ultrastor.c
172c122df5186e7cbd413d61757ff90267331002 29-Apr-2008 Harvey Harrison <harvey.harrison@gmail.com> scsi: fix integer as NULL pointer warnings

drivers/scsi/aic7xxx/aic7770_osm.c:53:58: warning: Using plain integer as NULL pointer
drivers/scsi/aic7xxx/aic7xxx_osm_pci.c:355:47: warning: Using plain integer as NULL pointer
drivers/scsi/aic7xxx/aic7xxx_osm_pci.c:372:55: warning: Using plain integer as NULL pointer
drivers/scsi/aha152x.c:997:28: warning: Using plain integer as NULL pointer
drivers/scsi/aha152x.c:1003:28: warning: Using plain integer as NULL pointer
drivers/scsi/aha152x.c:1165:46: warning: Using plain integer as NULL pointer
drivers/scsi/fdomain.c:1446:40: warning: Using plain integer as NULL pointer
drivers/scsi/sym53c8xx_2/sym_hipd.c:1650:51: warning: Using plain integer as NULL pointer
drivers/scsi/sym53c8xx_2/sym_hipd.c:3171:42: warning: Using plain integer as NULL pointer
drivers/scsi/sym53c8xx_2/sym_hipd.c:5732:52: warning: Using plain integer as NULL pointer
drivers/scsi/ncr53c8xx.c:8189:31: warning: Using plain integer as NULL pointer
drivers/scsi/ncr53c8xx.c:8225:34: warning: Using plain integer as NULL pointer
drivers/scsi/dpt_i2o.c:156:32: warning: Using plain integer as NULL pointer
drivers/scsi/ultrastor.c:954:42: warning: Using plain integer as NULL pointer
drivers/scsi/ultrastor.c:1104:18: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
/drivers/scsi/ultrastor.c
d3f46f39b7092594b498abc12f0c73b0b9913bde 15-Jan-2008 James Bottomley <James.Bottomley@HansenPartnership.com> [SCSI] remove use_sg_chaining

With the sg table code, every SCSI driver is now either chain capable
or broken (or has sg_tablesize set so chaining is never activated), so
there's no need to have a check in the host template.

Also tidy up the code by moving the scatterlist size defines into the
SCSI includes and permit the last entry of the scatterlist pools not
to be a power of two.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/scsi/ultrastor.c
1292500b159c00a8fece072b004f154e6fda9f48 16-Jan-2008 Frederik Deweerdt <deweerdt@free.fr> [SCSI] ultrastor: clean up inline asm warnings

To: linux-kernel@vger.kernel.org
Cc: bunk@kernel.org
Subject: [trivial patch] scsi/ultrastor: clean up inline asm warnings

Hi,

Compiling latest mainline with gcc 4.2.1 spews the following warnings:

drivers/scsi/ultrastor.c: In function 'find_and_clear_bit_16':
drivers/scsi/ultrastor.c:303: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:302: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c: At top level:
drivers/scsi/ultrastor.c:1202: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:1202: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c: In function 'ultrastor_queuecommand':
drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:698: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:302: warning: matching constraint does not allow a register
drivers/scsi/ultrastor.c:302: warning: matching constraint does not allow a register

The following patch fixes it by using the '+' operator on the (*field)
operand, marking it as read-write to gcc. I diffed the two resulting .s,
and gcc produced the same code. This was tested with gcc 4.2.1 and gcc 3.4.3

Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Cc: Adrian Bunk <trivial@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/scsi/ultrastor.c
b80ca4f7ee36c26d300c5a8f429e73372d153379 13-Jan-2008 FUJITA Tomonori <tomof@acm.org> [SCSI] replace sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE

This replaces sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE in
several LLDs. It's a preparation for the future changes to remove
sense_buffer array in scsi_cmnd structure.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/scsi/ultrastor.c
45711f1af6eff1a6d010703b4862e0d2b9afd056 22-Oct-2007 Jens Axboe <jens.axboe@oracle.com> [SG] Update drivers to use sg helpers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
/drivers/scsi/ultrastor.c
9cb83c7529d929c00f37d821daed1942a1b20602 16-Oct-2007 FUJITA Tomonori <tomof@acm.org> [SCSI] add use_sg_chaining option to scsi_host_template

This option is true if a low-level driver can support sg
chaining. This will be removed eventually when all the drivers are
converted to support sg chaining. q->max_phys_segments is set to
SCSI_MAX_SG_SEGMENTS if false.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
/drivers/scsi/ultrastor.c
d17867135639bec1bce5b38d29e6fa4cfea050ea 14-May-2007 FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> [SCSI] ultrastor: convert to use the data buffer accessors

- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/scsi/ultrastor.c
c7bec5aba52392aa8d675b8722735caf4a8b7265 06-Oct-2006 Jeff Garzik <jeff@garzik.org> Various drivers' irq handlers: kill dead code, needless casts

- Eliminate casts to/from void*

- Eliminate checks for conditions that never occur. These typically
fall into two classes:

1) Checking for 'dev_id == NULL', then it is never called with
NULL as an argument.

2) Checking for invalid irq number, when the only caller (the
system) guarantees the irq handler is called with the proper
'irq' number argument.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
/drivers/scsi/ultrastor.c
7d12e780e003f93433d49ce78cfedf4b4c52adc5 05-Oct-2006 David Howells <dhowells@redhat.com> IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.

(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.

(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
/drivers/scsi/ultrastor.c
b4620233d6a3510564c561a5a2a365a1d8a34b68 06-Sep-2006 Henrik Kretzschmar <henne@nachtwindheim.de> [SCSI] scsi-driver ultrastore replace Scsi_Cmnd with struct scsi_cmnd

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/scsi/ultrastor.c
d0be4a7d29ad0bd3ce2209dd9e46d410b632db59 31-Oct-2005 Christoph Hellwig <hch@lst.de> [SCSI] remove Scsi_Host_Template typedef

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/scsi/ultrastor.c
8fa728a26886f56a9ee10a44fea0ddda301d21c3 28-May-2005 Jeff Garzik <jgarzik@pobox.com> [SCSI] allow sleeping in ->eh_abort_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/scsi/ultrastor.c
e3df715501be3329986e5d9dfa9a477f49e7996b 28-May-2005 Jeff Garzik <jgarzik@pobox.com> [SCSI] Remove unnecessary locking around completion function calls

The SCSI ->done() hook should not be called from inside a spinlock.

Drivers that do this are mostly cut-n-paste from 2.2.x-era.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/scsi/ultrastor.c
69aa3f71580990f39e387d96ed1001d2f5fb04b1 01-May-2005 akpm@osdl.org <akpm@osdl.org> [PATCH] ultrastor build fix

Fix a typo.

James Bottomley <James.Bottomley@steeleye.com>

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
/drivers/scsi/ultrastor.c
2bc474c3646efba67bdc83b7fc7d8ee7562e0106 11-Apr-2005 <hch@lst.de> [PATCH] kill old EH constants

Fix up two drivers that incorrectly were using the old return values for
their new-style EH methods and kill off scsi_obsolete.h that defined the
constants. The initio driver has all these constansts defined locally
and uses them internally, I'll fix that up some time later.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/scsi/ultrastor.c
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 17-Apr-2005 Linus Torvalds <torvalds@ppc970.osdl.org> Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
/drivers/scsi/ultrastor.c