This patch removes do_mmap() from ehca:
- Call remap_pfn_range() for hardware register block
- Use vm_insert_page() to register memory allocated for completion
queues and queue pairs
- The actual mmap() call/trigger is now controlled by user space,
ie. libehca
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The iWARP connection manager uses the ib_addr services to do route
resolution (neighbour discovery in the IP world). The ib_addr
netevent callback routine, however, currently only acts on InfiniBand
neighbour updates. It needs to act on ethernet neighbour updates as
well.
This patch just removes filtering on device type altogether and will
trigger on any neighour updates where the nud_type is valid. This
simplifies the code some.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When there is a call to send_tsk_mgmt SRP posts a send and waits for 5
seconds to get a response.
When the QP is in the error state it is obvious that there will be no
response so it is quite useless to wait. In fact, the timeout causes
SRP to wait a long time to reconnect when a QP error occurs. (Each
abort and each reset_device calls send_tsk_mgmt, which waits for the
timeout). The following patch solves this problem by identifying the
failure and returning an immediate error code.
Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
struct ib_wc currently only includes the local QP number: this matches
the IB spec, but seems mostly useless. The following patch replaces
this with the pointer to qp itself, and updates all low level drivers
and all users.
This has the following advantages:
- Ability to get a per-qp context through wc->qp->qp_context
- Existing drivers already have the qp pointer ready in poll cq, so
this change actually saves a tiny bit (extra memory read) on data path
(for ehca it would actually be expensive to find the QP pointer when
polling a CQ, but ehca does not support SRQ so we can leave wc->qp as
NULL for ehca)
- Users that need the QP number can still get it through wc->qp->qp_num
Use case:
In IPoIB connected mode code, I have a common CQ shared by multiple
QPs. To track connection usage, I need a way to get at some per-QP
context upon the completion, and I would like to avoid allocating
context object per work request just to stick a QP pointer into it.
With this code, I can just use wc->qp->qp_context.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Since we actively avoid highmem, calling kmap_atomic() instead
of page_address() is effectively only obfuscation.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Since we actively avoid highmem, calling kmap_atomic() instead
of page_address() is effectively only obfuscation.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Since we actively avoid highmem, calling kmap_atomic() instead
of page_address() is effectively only obfuscation.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
MMC high-speed, wide bus support and SD high-speed
are functions that aren't critical for correct
operation of the card. As such, they shouldn't mark
the card as bad or dead when there is a failure
activating these features.
This is needed in particular on some really stupid
hardware (e.g. Winbond's) where not all data transfer
commands are supported.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
The wbsd hardware is so incredibly brain damaged that it has an internal
list of commands that result in data transfers. The result being that
commands that aren't on this list aren't supported.
Instead of locking up, waiting for a data interrupt that will never come,
we try to fail a bit more gracefully.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Many controllers have an upper limit on the number of blocks that can be
transferred in one request. Allow the host drivers to specify this and make
sure we avoid hitting this limit.
Also change the max_sectors field to avoid confusion. This makes it map
less directly to the block layer limits, but as they didn't apply directly
on MMC cards anyway, this isn't a great loss.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Most controllers have an upper limit on the block size. Allow the host
drivers to specify this and make sure we avoid hitting this limit.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Fix some spaces and tabs. No semantic changes are introduced.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch also adds symbolic defines for supported pci ids.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
As there's only one work item (media_switcher) to handle and it's effectively
serialized with itself, I found it more convenient to use kthread instead of
workqueue. This also allows for a working implementation of suspend/resume,
which were totally broken in the past version.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Hardware does not say whether card was inserted or removed when reporting
socket events. Moreover, during suspend, media can be removed or switched
to some other card type without notification. Therefore, for each socket
in the change set the following is performed:
1. If there's active device in the socket it's unregistered
2. Media detection is performed
3. If detection recognizes supportable media, new device is registered
This patch also alters some macros and variable names to enhance clarity.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Eject function can take advantage of the socket_id field instead of explicit
pointer comparison.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch introduces no semantic changes - it is here for estetic purposes.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
In order to support correct suspend and resume several changes were needed:
1. Switch from work_struct to tasklet for command handling. When device
suspend is called workqueues are already frozen and can not be used.
2. Separate host initialization code from driver's probe and don't rely
on interrupts for host initialization. This, in turn, addresses two
problems:
a) Resume needs to re-initialize the host, but can not assume that
device interrupts were already re-armed.
b) Previously, probe will return successfully before really knowing
the state of the host, as host interrupts were not armed in time.
Now it uses polling to determine the real host state before returning.
3. Separate termination code from driver's remove. Termination may be caused
by resume, if media changed type or became unavailable during suspend.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
The register access order when setting hardware timeout was incorrect and
causing problems (wrong timeout intervals). This is now fixed.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Two changes are introduced to software timeout handler in order to simplify
its management:
1. The implementation is switched from work_struct to timer
2. Previously, software timeout was rearmed with each interrupt. Now,
current request must complete entirely within timeout interval.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Data buffer for PIO transfer used to be mapped in advance with kmap.
Abolish it in favor of on-demand kmap_atomic.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Previously, stop command was issued right after BRS (block received/sent)
event. Stop command completion event could interfere with the card busy
event, causing miscount of the written blocks.
This patch ensures that stop command issued as last action for a
particular command, after DMA sompletion event and written block
count verification.
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Thanks to the generous donation of an SDHC card by John Gilmore, and
the surprisingly enlightened decision by the SD Card Association to
publish useful specs, I've been able to bash out support for SDHC. The
changes are not too profound:
i) Add a card flag indicating the card uses block level addressing and
check it in the block driver. As we never took advantage of byte-level
addressing, this simply involves skipping the block -> byte
translation when sending commands.
ii) The layout of the CSD is changed - a set of fields are discarded
to make space for a larger C_SIZE. We did not reference any of the
discarded fields except those related to the C_SIZE.
iii) Read and write timeouts are fixed values and not calculated from
CSD values.
iv) Before invoking SEND_APP_OP_COND, we must invoke the new
SEND_IF_COND to inform the card we support SDHC.
Signed-off-by: Philipl Langdale <philipl@overt.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Support for these devices was broken for 2.6.18-rc1 and later by commit
146ad66eac, which added voltage level support.
This restores the previous behaviour for these devices by ensuring that when
the voltage is changed, only one write to set the voltage is performed.
It may be that both writes are needed if the voltage is being changed between
two non-zero values or that it's safe to ensure that only one write is done
if the hardware only supports one voltage; I don't know whether either is the
case nor can I test since I have only the one SD reader (1524:0550), and it
supports just the one voltage.
Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Change the parent of cards to be a specific host (a class
device), not the physical controller. This is particularly
useful when the hardware has multiple slots, meaning
multiple hosts.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
As card_busy was only used to indicate if the host was exclusively
claimed and not really used to identify a particular card, replacing
it with just a boolean makes things a lot more easily understandable.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
That code doesn't do what its author apparently thought it would do...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] sd: udev accessing an uninitialized scsi_disk field results in a crash
[SCSI] st: A MTIOCTOP/MTWEOF within the early warning will cause the file number to be incorrect
[SCSI] qla4xxx: bug fixes
[SCSI] Fix scsi_add_device() for async scanning
smc911x_phy_configure's error handling unconditionally unlocks the
spinlock even if it wasn't locked. Patch fixes it.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
sd_probe() calls class_device_add() even before initializing the
sdkp->device variable. class_device_add() eventually results in the user mode
udev program to be called. udev program can read the the allow_restart
attribute of the newly created scsi device. This is resulting in a crash as
the show function for allow_restart (i.e sd_show_allow_restart) returns the
attribute value by reading the sdkp->device->allow_restart variable. As the
sdkp->device is not initialized before calling the user mode hotplug helper,
this results in a crash.
The patch below solves it by calling class_device_add() only after the
necessary fields in the scsi_disk structure are initialized properly.
Signed-off-by: Nagendra Singh Tomar <nagendra_tomar@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Some LLDDs, like ipr, use nbytes and pad_len to determine
the total data transfer length of a command. Make sure
nbytes gets initialized for internally generated commands.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The 8237S was added to the chipsets but not to the comments. Fix this
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
For all JMicrons except for 361 and 368, AHCI mode enable bits in the
Control(1) should be set. This used to be done in both ahci and
pata_jmicron but while moving programming to PCI quirk, it was removed
from ahci part while still left in pata_jmicron.
The implemented JMicron PCI quirk was incorrect in that it didn't
program AHCI mode enable bits. If pata_jmicron is loaded first and
programs those bits, the ahci ports work; otherwise, ahci device
detection fails miserably.
This patch makes JMicron PCI quirk clear SATA IDE mode bits and set
AHCI mode bits and remove the respective part from pata_jmicron.
Tested on JMB361, 363 and 368.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
We forget to call spider_net_free_rx_chain_contents which does the
actual dev_kfree_skb. New skbs are allocated from skbuff_head_cache
on each "ifconfig up" letting the cache grow infinitely.
This patch fixes it.
Signed-off-by: Jens Osterkamp <jens@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
e100: fix napi ifdefs removing needed code
From: Auke Kok <auke-jan.h.kok@intel.com>
The e100 driver is NAPI mode only. We need to netif_poll_disable
during suspend and shutdown. The non-NAPI driver code was removed
and is only avaiable in the out-of-tree e100 kernel driver.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
5709 A0 copper devices will not link up with some link partners
without this workaround.
Update driver to 1.5.5.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change SysRq showBlockedTasks from sysrq-X to sysrq-W and show that in the
Help message.
It was previously done via X, but X is already used for Xmon on ppc & powerpc
platforms and this collision needs to be avoided.
All callers of register_sysrq_key() are now marked in the sysrq op/key table.
I didn't mark 'h' as Help because Help is just printed for any unknown key,
such as '?'.
Added some omitted sysrq key entries in the sysrq.txt file.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Intel hosts, without long mode, and with nx support disabled in the bios
have an efer that is readable but not writable. This causes a lockup on
switch to guest mode (even though it should exit with reason 34 according
to the documentation).
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove these recently-added warnings. They don't tell us anythng very
interesting and Kumar says "On an embedded PPC reference system I see this
message 6 times when I've got no cards in the PCI slots."
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add special handling for the VT82C686.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Won't build (request_irq()/free_irq()), even if you manage to find an
s390 box with 8250-compatible UART they are expecting.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
a) cleanup_module() should be __exit
b) externs should match reality
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid:
HID: fix pb_fnmode and move it to generic HID
HID: fix hid-input mapping for Firefly Mini Remote Control
USB HID: fix hid_blacklist clash for 0x08ca/0x0010
HID: fix memleaking of collection
Fix a dangling pointer bug in ipmi_timeout_handler. A list of timedout
messages is not re-initialized before reuse, causing the head of the list
to point to freed memory.
Signed-off-by: David Barksdale <amatus@ocgnet.org>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
jmicron module detects all JMB36x as JMB361 and PATA0 has wrong pin status
of XICBLID.
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix VIA quirks that were recently broken by Alan Cox in the upstream
kernel (commit 1597cacbe3).
My understanding is that pci_find_present() doesn't work yet at the time
the quirks are run. So I used a two-step quirk as is done for some other
quirks already. First we detect the VIA south bridges and set the right
low and high device limits, then we are ready to actually run the quirks on
the affected devices.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 0c0b3ae68e.
Quoth David:
"Jeff, please revert
It's wrong. We had a lengthy analysis of this piece of code
several months ago, and it is correct.
Consider, if we run the loop and we get an error
the following happens:
1) attempt of ifb_init_one(i) fails, therefore we should
not try to "ifb_free_one()" on "i" since it failed
2) the loop iteration first increments "i", then it
check for error
Therefore we must decrement "i" twice before the first
free during the cleanup. One to "undo" the for() loop
increment, and one to "skip" the ifb_init_one() case which
failed."
Reported-by: David Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Cc: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: fix translation for START STOP UNIT
libata-scsi: ata_task_ioctl should return ATA registers from sense data
pata_platform: set_mode fix
ata_if_xfermask() word 51 fix
pata_sil680: PIO1 taskfile transfers overclocking fix (repost)
libata: fix ata_eh_suspend() return value
ahci: port_no should be used when clearing IRQ in ahci_thaw()
Fix trivial conflict in drivers/ata/pata_platform.c manually
* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart:
[AGPGART] Add new IDs to VIA AGP.
[AGPGART] Remove pointless assignment.
[AGPGART] Remove pointless typedef in ati-agp
[AGPGART] Prevent (unlikely) memory leak in amd_create_gatt_pages()
[AGPGART] intel_agp: restore graphics device's pci space early in resume
* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6:
via82cxxx/pata_via: correct PCI_DEVICE_ID_VIA_SATA_EIDE ID and add support for CX700 and 8237S
ide: unregister idepnp driver on unload
ide: add missing __init tags to IDE PCI host drivers
ia64: add pci_get_legacy_ide_irq()
ide/generic: Jmicron has its own drivers now
atiixp.c: add cable detection support for ATI IDE
atiixp.c: sb600 ide only has one channel
atiixp.c: remove unused code
jmicron: fix warning
ide: update MAINTAINERS entry
What DMA for 16bit pcmcia card, anyway? We never do request_dma()
there and ->dma_channel never changes since initialization to -1.
IOW, that call is dead code.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 4117/1: S3C2412: Fix writel() usage in selection code
[ARM] 4111/1: Allow VFP to work with thread migration on SMP
[ARM] 4112/1: Only ioremap to supersections if DOMAIN_IO is zero
[ARM] 4106/1: S3C2410: typo fixes in register definitions
[ARM] 4102/1: Allow for PHYS_OFFSET on any valid 2MiB address
[ARM] Fix AMBA serial drivers for non-first serial ports
[ARM] 4100/1: iop3xx: fix cpu mask for iop333
[ARM] Update mach-types
[ARM] Fix show_mem() for discontigmem
[ARM] 4096/1: S3C24XX: change return code form s3c2410_gpio_getcfg()
[ARM] 4095/1: S3C24XX: Fix GPIO set for Bank A
[ARM] 4092/1: i.MX/MX1 CPU Frequency scaling latency definition
[ARM] 4089/1: AT91: GPIO wake IRQ cleanup
[ARM] 4088/1: AT91: Unbalanced IRQ in serial driver suspend/resume
[ARM] 4087/1: AT91: CPU reset for SAM9x processors
[ARM] 4086/1: AT91: Whitespace cleanup
[ARM] 4085/1: AT91: Header fixes.
[ARM] 4084/1: Remove CONFIG_DEBUG_WAITQ
Fix what looks like an obvious typo in the file drivers/kvm/svm.c.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some issues in b44_resume().
- Return value of pci_enable_device() was ignored.
- If request_irq() has failed we have to just disable device and exit.
Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
e100: fix irq leak on suspend/resume
From: Frederik Deweerdt <frederik.deweerdt@gmail.com>
The e100_resume() function should be calling netif_device_detach and
free_irq. This fixes multiple irq's being allocated after resume.
Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
While working with the latest bonding code I noticed a nasty problem that
will prevent arp monitoring from always functioning correctly on x86_64
systems. Comparing ints to longs and expecting reliable results on x86_64
is a bad idea. With this patch, arp monitoring works correctly again.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Stephen Hemminger <shemminger@osdl.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch fixes the wrong query and logging of the per interface jumbo frames
enabled/disabled status.
Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
drivers/net/82596.c: In function 'i596_start_xmit':
drivers/net/82596.c:1069: warning: cast from pointer to integer of different size
drivers/net/82596.c: In function 'i82596_probe':
drivers/net/82596.c:1249: warning: format '%d' expects type 'int', but argument 4 has type 'long unsigned int'
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Updated direct resource pass with ioremap call, make it grant proper IRQ
mapping, stuff incompatible with the new approach were respectively put
under #ifndef CONFIG_PPC_MERGE. It is required so that both ppc and
powerpc could utilize fs_enet effectively.
Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
On error we should start freeing resources at [i-1] not [i-2].
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This fixes the issue of frequent link changes under heavy traffic reported
below:
http://bugzilla.kernel.org/show_bug.cgi?id=7696https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=216338
The b44 chip occasionally needs to be reset when ISTAT_ERRORS are
encountered. The reset sequence includes a PHY reset that will take many
seconds to complete and cause the link to go down and up. By skipping the
PHY reset, it will greatly reduce the interruption when ISTAT_ERRORS are
encountered.
Change the full_reset parameter to reset_kind parameter in b44_init_hw().
This will allow PHY reset to be skipped when ISTAT_ERRORS are encountered.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
libata's SCSI translation for the SCSI START STOP UNIT command with the
START bit clear (i.e. stopping the drive) appears to be incorrect. It
sends an ATA STANDBY command with the time period set to 0, which the code
comment says means "now", but the ATA standard says this means disable the
standby timer, which effectively does nothing. Change this to issue a
STANDBY IMMEDIATE command which will actually spin the drive down. The SAT
(SCSI/ATA Translation) standard revision 9 concurs with this choice.
Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
User applications using the HDIO_DRIVE_TASK ioctl through libata expect
specific ATA registers to be returned to userspace. Verified that
ata_task_ioctl correctly returns register values to the smartctl
application.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
drivers/ata/pata_platform.c:85: warning: initialization from incompatible pointer type
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
If word 53 bit 1 isn't set, the maximum PIO mode is indicated by
the upper 8 bits of word 51, not the lower 8 bits. Fixes PIO mode
detection on old Compact Flash cards.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fix PIO mode 1 overclocked taskfile transfers -- probably a typo carried over
from drivers/ide/pci/siimage.c where I've found it by documentation check...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The apple powerbook people are used to switch the pb_fnmode
setting at runtime through writing to sysfs, altering the
module parameter value. This was broken for them in 2.6.20-rc1
when generic HID layer was introduced, as the pb_fnmode flag
was made per-hiddevice, instead of global variable.
This patch moves the pb_fnmode module parameter from usbhid module
to hid module, but apart from that retains backward compatibility
with respect to changing the mode through sysfs.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Let's just backout the IRQ hack, and for those crap machines (like some
Sony VAIO's) can just disable MSI with the module parameter.
This reverts 44ade17824.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Frédéric Riss <frederic.riss@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Trivial patch to check sysfs_create_link return values.
Fail gracefully if needed.
Signed-off-by: Ahmed Darwish <darwish.07@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Culled from the VIA codedrop.
Also fixes up one ID used in amd64-agp to use the
VIA part number instead of the board name in its ID.
Signed-off-by: Dave Jones <davej@redhat.com>
This seems to exist just to save people typing 'struct' a few times,
and doesn't provide any additional value.
Signed-off-by: Dave Jones <davej@redhat.com>
If we fail an alloc, unwind the previous allocs that succeeded.
Spotted-by: Alan Grimes <agrimes@speakeasy.net>
Signed-off-by: Dave Jones <davej@redhat.com>
On Wed, 24 Jan 2007, Andrew Morton wrote:
> On Mon, 22 Jan 2007 13:07:20 -0800
> bugme-daemon@bugzilla.kernel.org wrote:
>
> > http://bugzilla.kernel.org/show_bug.cgi?id=7864
> >
> > Summary: A MTIOCTOP/MTWEOF within the early warning will cause
> > the file number to be incorrect
> > Kernel Version: 2.6.19.2
> > Status: NEW
> > Severity: low
> > Owner: io_scsi@kernel-bugs.osdl.org
> > Submitter: ce_reisinger@yahoo.com
> >
> >
> > Write records to a SCSI tape until a write fails with a ENOSPC (you have reached
> > early warning.
> > Now perform a:
> > struct mtget before, after;
> > ioctl(fd, MTIOCGET, &before);
> > struct mtop mtop = { MTWEOF, 1 };
> > ioctl(fd, MTIOCTOP, &mtop);
> > ioctl(fd, MTIOCGET, &after);
> >
> > Check the value of mt_fileno in the before and after structures. Notice the
> > after is 2 greater then the before.
> >
> > The problem appears to be in the block of code starting at line 2817 in st.c.
> > This block is entered because the drive did return a CHECK CONDITION with NO
> > SENSE and the SENSE_EOM bit set. At lines 2824/5 the fileno is incremented. But
> > it has already been increased by the number of filemarks requested by the
> > MTIOCTOP. I believe that the residue count in the sense data should be
> > subtracted from fileno, not a increment as is done.
> >
>
> Thanks. Could you please send us a tested patch to fix these things, as
> per http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt ?
>
The analysis is basically correct and explains the bug. According to the
SCSI standards, the sense code is NO SENSE or RECOVERED ERROR in case
writing filemark(s) succeeds. If it fails (partly or completely) the sense
code is VOLUME OVERFLOW. The patch below is tested to fix the case when
one filemark is successfully written after the EOM early warning. It
should also fix the case at real EOM but this has not been tested.
Carl, thanks for reporting the bug and providing the analysis for the fix.
Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The included patch fixes the following issues:
1. qla3xxx/qla4xxx co-existence issue which can result in a lockup
when qla3xxx driver is unloaded, or when ifdown; ifup is performed on
one of the interfaces correponding to qla3xxx. This is because qla4xxx
HBA supports one ethernet and iscsi interfaces per port. Both iscsi
and ethernet interfaces share the same state machine. The problem has
to do with synchronizing access to the state machine in the event of a
reset
2. mutex_lock() is sometimes not followed by mutex_unlock() prior to
invoking a msleep() in qla4xxx_mailbox_command()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
I had thought that all drivers which didn't call scsi_scan_host()
called scsi_scan_target(). Some, such as sbp2, mptsas and libata-scsi,
call scsi_add_device() or __scsi_add_device(). We just need to wait
for the currently executing async scans to complete first. This is the
same code that's in scsi_scan_target(), except that we have to return
an error instead of void when we're declining to scan at all.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch:
* Corrects the wrong device ID of PCI_DEVICE_ID_VIA_SATA_EIDE
from 0x0581 to 0x5324.
* Adds VIA CX700 and VT8237S support in drivers/ide/pci/via82cxxx.c
* Adds VIA VT8237S support in drivers/ata/pata_via.c
Signed-off-by: Josepch Chan <josephchan@via.com.tw>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
