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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Adam Radford <linuxraid@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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sym53c8xx_slave_destroy unconditionally assumes that sym53c8xx_slave_alloc has
succesesfully allocated a sym_lcb. This can lead to a NULL pointer dereference
(exposed by commit 4e6c82b).
Signed-off-by: Stratos Psomadakis <psomas@gentoo.org>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Conflicts:
MAINTAINERS
arch/arm/mach-omap2/pm24xx.c
drivers/scsi/bfa/bfa_fcpim.c
Needed to update to apply fixes for which the old branch was too
outdated.
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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>
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"gadget", "through", "command", "maintain", "maintain", "controller", "address",
"between", "initiali[zs]e", "instead", "function", "select", "already",
"equal", "access", "management", "hierarchy", "registration", "interest",
"relative", "memory", "offset", "already",
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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To avoid a collision with the newly-added kernel-wide skip_spaces().
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Make the sym53c8xx_2 driver slave_alloc/destroy less unsafe. References
to the destroyed LCB are cleared from the target structure (instead of
leaving a dangling pointer), and when the last LCB for the target is
destroyed the reference to the upper layer target data is cleared. The
host lock is used to prevent a race with the interrupt handler. Also
user commands are prevented for targets with all LCBs destroyed.
Signed-off-by: Aaro Koskinen <Aaro.Koskinen@nokia.com>
Tested-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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sym53c8xx uses a command queue depth of 2 for untagged devices,
without good reason. This _mostly_ seems to work ok, but it has
caused me some subtle problems. For example, I have an application
where one thread sends write commands to a tape drive, and another
thread sends log sense polling commands. With a queue depth of
2, the polling commands end up being starved for long periods of
time while multiple write commands are serviced (this may also be
related to the fact the the sg driver queues commands in LIFO order).
This problem is fixed by changing the queue depth to 1 for untagged
devices. I have tested this change extensively with many different
tape drives, medium changers, and disk drives (disk drives of course
use tagged commands and are therefore unaffected by this patch).
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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sym_init_device() doesn't check if pci_iomap() fails. It also tries
to map device RAM without first checking FE_RAM.
1) Move some initialization from sym_init_device() to the top of
sym2_probe().
2) Rename sym_init_device() to sym_iomap_device().
3) Call sym_iomap_device() after sym_check_supported() instead of
before so that device->chip.features will be set.
4) Check FE_RAM in sym_iomap_device() before mapping RAM.
5) If sym_iomap_device() cannot map registers, then abort.
6) If sym_iomap_device() cannot map RAM, then fall back to not using
RAM and continue.
7) Remove the check for FE_RAM in sym_attach() since dev->ram_base
is now always set correctly.
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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During sym2_probe(), sym_init_device() does pci_iomap(), but there is
no corresponding pci_iounmap() if an error occurs before sym_attach()
copies sym_device::s.{ioaddr,ramaddr} to np.
1) Add the sym_iounmap_device() function.
2) Call sym_iounmap_device() if an error occurs between
sym_init_device() and the time sym_attach() allocates np.
3) Make sym_attach() copy sym_device::s.{ioaddr,ramaddr} to np before
calling any function that can fail so that sym_free_resources()
will do the unmap instead of sym_iounmap_device().
Also fixed by this patch:
During sym2_probe(), if sym_check_raid() returns nonzero, then
pci_release_regions() is never called.
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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If sym_attach() gets an error at or before request_irq(), then
sym_free_resources() will call free_irq() for an unregistered
interrupt handler.
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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If sym_attach() fails to allocate np, the error path will dereference
a NULL pointer for printk.
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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This patch fixes two bugs:
1) rmmod sym53c8xx uses shost after freeing it with
scsi_put_host(shost).
2) insmod sym53c8xx doesn't call scsi_put_host(shost) if
scsi_add_host() fails, causing a memory leak on the error path.
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Right now SCSI and others do their own command timeout handling.
Move those bits to the block layer.
Instead of having a timer per command, we try to be a bit more clever
and simply have one per-queue. This avoids the overhead of having to
tear down and setup a timer for each command, so it will result in a lot
less timer fiddling.
Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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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>
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On a big powerpc box I got the following oops with 2.6.24-git2:
sym0: <1010-66> rev 0x1 at pci 0000:d0:01.0 irq 215
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
target0:0:8: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
scsi 0:0:8:0: Direct-Access IBM ST318305LC C509 PQ: 0
ANSI: 3
target0:0:8: tagged command queuing enabled, command queue depth 16.
target0:0:8: Beginning Domain Validation
target0:0:8: asynchronous
target0:0:8: wide asynchronous
target0:0:8: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
target0:0:8: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
Unable to handle kernel paging request for data at address 0x00000000
Faulting instruction address: 0xc000000000038460
cpu 0x25: Vector: 300 (Data Access) at [c00000000f567840]
pc: c000000000038460: .memcpy+0x60/0x280
lr: d000000000050280: .sym_set_cam_result_error+0xfc/0x1e0 [sym53c8xx]
sp: c00000000f567ac0
msr: 8000000000009032
dar: 0
dsisr: 42000000
current = 0xc000006d1e0af0a0
paca = 0xc0000000004afc00
pid = 0, comm = swapper
enter ? for help
[link register ] d000000000050280
.sym_set_cam_result_error+0xfc/0x1e0 [sym53c8xx]
[c00000000f567ac0] c00000000f567b80 (unreliable)
[c00000000f567b80] d0000000000552b8 .sym_complete_error+0x12c/0x1bc [sym53c8xx]
[c00000000f567c20] d0000000000561a4 .sym_int_sir+0xaa4/0x1718 [sym53c8xx]
[c00000000f567d00] d000000000057e8c .sym_interrupt+0x4e4/0x6ec [sym53c8xx]
[c00000000f567dc0] d00000000004fdf4 .sym53c8xx_intr+0x6c/0xdc [sym53c8xx]
[c00000000f567e50] c0000000000a83e0 .handle_IRQ_event+0x7c/0xec
[c00000000f567ef0] c0000000000aa344 .handle_fasteoi_irq+0x130/0x1f0
[c00000000f567f90] c00000000002a538 .call_handle_irq+0x1c/0x2c
[c000004d5e0b3a90] c00000000000c320 .do_IRQ+0x108/0x1d0
[c000004d5e0b3b20] c000000000004790 hardware_interrupt_entry+0x18/0x1c
The memset() in sym_set_cam_result_error() would appear to be trashing
the scsi_cmnd struct instead of clearing sense_buffer.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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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>
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This patch fixes two bugs pointed by James Bottomley:
1. the if (!sym_data->io_reset). That variable is only ever filled
by a stack based completion. If we find it non empty it means
this code has been entered twice and we have a severe problem,
so that should just become a BUG_ON(sym_data->io_reset).
2. sym_data->io_reset should be set to NULL before the routine is
exited otherwise the PCI recovery code could end up completing
what will be a bogus pointer into the stack.
Big thanks to James Bottomley for help with the patch.
Signed-off-by: Krzysztof Helt <krzysztof.h1@w.pl>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Fix section mismatch warning:
WARNING: vmlinux.o(.text+0x1ff3a2): Section mismatch: reference to .exit.text:sym2_remove (between 'sym2_io_error_detected' and 'sym_xpt_done')
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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The following commit changed the pointer passed to request_irq(), but
failed to change the pointer passed to free_irq():
commit 99c9e0a1d6cfe1ba1169a7a81435ee85bc00e4a1
Author: Matthew Wilcox <matthew@wil.cx>
Date: Fri Oct 5 15:55:12 2007 -0400
[SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE
...
The result is that free_irq() doesn't actually take any action. This
patch fixes it.
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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This function just printed a message to the user; move the print to its
only caller, and turn it into an starget_printk.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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This structure is accessed by the device; the fewer Linux things in it,
the better. Using the pci_dev pointer from the hostdata requires a lot
of changes:
- Pass Scsi_Host to a lot of routines which currently take a sym_hcb.
- Set the Scsi_Host as the pci drvdata (instead of the sym_hcb)
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Make sym_interrupt return an irqreturn_t instead of void, and take a
Scsi_Host instead of a sym_hcb. Pass the Scsi_Host to the interrupt
handler instead of the sym_hcb. Rename the host_data to sym_data.
Keep a pci_dev pointer in the sym_data. Rename the Scsi_Host from
instance to shost.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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These macros aren't needed any more. They used to be used for SPARC.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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If we have a scsi_cmnd, it gives the user more information than the
sym_name, and maybe the target.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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By introducing the use_dac(), set_dac() and DMA_DAC_MASK macros, we can
eliminate a lot of ifdefs from the code. We now rely on the compiler to
optimise away a few things that we'd formerly relied on the preprocessor
to do. This makes sym_setup_bus_dma_mask() small enough to inline into
its only caller.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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With sysfs making these options tunable at runtime, there's no
justification for keeping this horrendously complex specification
string around.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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These struct elements record info that is never needed
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Following the same path as ->revision_id, remove ->device_id
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Auke missed the sym2 driver in his initial sweep.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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This patch adds the PCI error recovery callbacks to the Symbios SCSI device
driver. It includes support for First Failure Data Capture.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Assorted changes to initial patches, including returning IRQ_NONE from the
interrupt handler if the device is offline and re-using the eh_done completion
in the scsi error handler.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Instead of telling the reset routine that the command completed from
sym_eh_done, do it from sym_xpt_done. The 'to_do' element of the ucmd
is redundant -- it serves only to tell whether eh_done is valid or not,
and we can tell this by checking to see if it's NULL.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Interrupts can't be re-entered, so it's sufficient to call spin_lock, not
spin_lock_irqsave().
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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The midlayer won't scan the host ID, so we don't need to check.
This is the only caller of sym_xpt_done2, so remove that too.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Before all commands used sg, data_mapping and data_mapped were used to
distinguish whether the command had used map_single or map_sg. Now all
commands are sg, so we can delete data_mapping, data_mapped and the
wrapper functions __unmap_scsi_data, __map_scsi_sg_data, unmap_scsi_data
and map_scsi_sg_data.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Don't cache a private copy of the interrupt number
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Prevent DMA transfers from crossing the 16MB limit for early 53c896 chips.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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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>
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Apropos this thread
http://marc.theaimsgroup.com/?l=linux-scsi&m=115591706804045&w=2
which led to this patch
http://www.kernel.org/git/?p=linux/kernel/git/jejb/scsi-rc-fixes-2.6.git;a=commit;h=b2b3c121076961333977f485f0d54c22121df920
We also need to fix sym53c8xx only to bind to the PCI ID if it is of
device class PCI_CLASS_STORAGE_SCSI (otherwise it will be the cpqarray
RAID device).
Signed-off-by: Chip Coldwell <coldwell@redhat.com>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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- 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>
Cc: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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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)
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The follow patch fixes a problem for Matt Taggart.
The Compaq system he had (dl380?) has a SmartArray device that exposes
the 53c1510 device in both RAID and "normal" modes. The difference
is in RAID mode, the smart array driver (IIRC) should claim the
device instead of sym2 driver. Patch below prevents sym2 from
claiming the device when the RAID "daughter board" is attached.
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (85 commits)
[SCSI] 53c700: remove reliance on deprecated cmnd fields
[SCSI] hptiop: don't use cmnd->bufflen
[SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver
[SCSI] aacraid: small misc. cleanups
[SCSI] aacraid: Update supported product information
[SCSI] aacraid: Fix return code interpretation
[SCSI] scsi_transport_sas: fix panic in sas_free_rphy
[SCSI] remove RQ_SCSI_* flags
[SCSI] remove scsi_request infrastructure
[SCSI] mptfusion: change driver revision to 3.03.10
[SCSI] mptfc: abort of board reset leaves port dead requiring reboot
[SCSI] mptfc: fix fibre channel infinite request/response loop
[SCSI] mptfc: set fibre channel fw target missing timers to one second
[SCSI] mptfusion: move fc event/reset handling to mptfc
[SCSI] spi transport: don't allow dt to be set on SE or HVD buses
[SCSI] aic7xxx: expose the bus setting to sysfs
[SCSI] scsi: remove Documentation/scsi/cpqfc.txt
[SCSI] drivers/scsi: Use ARRAY_SIZE macro
[SCSI] Remove last page_address from dc395x.c
[SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver
...
Fixed up conflicts in drivers/message/fusion/mptbase.c manually (due to
the sparc interrupt cleanups)
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This ugly hack was long overdue to die.
It was a way to print out Sparc interrupts in a more freindly format,
since IRQ numbers were arbitrary opaque 32-bit integers which vectored
into PIL levels. These 32-bit integers were not necessarily in the
0-->NR_IRQS range, but the PILs they vectored to were.
The idea now is that we will increase NR_IRQS a little bit and use a
virtual<-->real IRQ number mapping scheme similar to PowerPC.
That makes this IRQ printing hack irrelevant, and furthermore only a
handful of drivers actually used __irq_itoa() making it even less
useful.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Various scsi drivers use scsi_cmnd.buffer and scsi_cmnd.bufflen in their
queuecommand functions. Those fields are internal storage for the
midlayer only and are used to restore the original payload after
request_buffer and request_bufflen have been overwritten for EH. Using
the buffer and bufflen fields means they do very broken things in error
handling.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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