Commit Graph

108 Commits

Author SHA1 Message Date
Brian King 45c44b5ff9 ipr: Increase default adapter init stage change timeout
Increase the default init stage change timeout from 15 seconds to 30 seconds.
This resolves issues we have seen with some adapters not transitioning
to the first init stage within 15 seconds, which results in adapter
initialization failures.

Cc: <stable@vger.kernel.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-02 08:03:25 -07:00
Brian King 29854a4f7b ipr: Driver version 2.6.1
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09 14:19:23 -07:00
Wen Xiong f8ee25d7d2 ipr: AF DASD raw mode implementation in ipr driver
This patch implements raw mode support for AF DASD in ipr driver
which allows for tools to send commands directly to physical
devices which are members of RAID arrays when enabled in the firmware.

[jejb: fix up whitespace]
Signed-off-by: Wen Xiong<wenxiong@linux.vnet.ibm.com>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Daniel Kreling <kreling@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09 14:17:57 -07:00
Brian King 2796ca5e51 ipr: Reset in task context
The pci_set_pcie_reset_state has changed semantics to not be callable
from interrupt context, so change ipr's usage of the API to comply with
this change by ensuring this occurs from a workqueue.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Daniel Kreling <kreling@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09 13:43:14 -07:00
Brian King 4fdd7c7aab ipr: Reboot speed improvements
Currently when performing a reboot with an ipr adapter,
the adapter gets shutdown completely, flushing all write
cache, as well as performing a full hardware reset of the card
during the shutdown phase of the old kernel. This ensures
the adapter is in a fully quiesced state across the reboot.

There are scenarios, however, such as when performing
kexec, where this full adapter shutdown is not required
and not desired, since it can make the reboot process take
noticeably longer.

This patch adds a module parameter to allow for skipping the
full shutdown during reboot. Rather than performing a full
adapter shutdown and reset, we simply cancel any outstanding
error buffers, place the adapter into a state where it has no
memory of any DMA addresses from the old kernel, then disable
the device. This significantly speeds up kexec boot, particularly
in configurations with multiple ipr adapters.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Daniel Kreling <kreling@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09 13:42:07 -07:00
Brian King 6cdb08172b ipr: wait for aborted command responses
Fixes a race condition in abort handling that was injected
when multiple interrupt support was added. When only a single
interrupt is present, the adapter guarantees it will send
responses for aborted commands prior to the response for the
abort command itself. With multiple interrupts, these responses
generally come back on different interrupts, so we need to
ensure the abort thread waits until the aborted command is
complete so we don't perform a double completion. This race
condition was being hit frequently in environments which
were triggering command timeouts, which was resulting in
a double completion causing a kernel oops.

Cc: <stable@vger.kernel.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com>
Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2015-01-19 10:46:20 +01:00
Brian King f688f96d86 ipr: add support for async scanning to speed up boot
Switch device scanning logic in the ipr driver to use
the async scan API. This speeds up boot times, particularly
on large systems.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Wen Xiong<wenxiong@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-12-15 13:34:28 +01:00
Anton Blanchard d73341bff0 ipr: convert to generic DMA API
Even though the ipr driver is only used on PCI, convert it
to use the generic DMA API.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-11-12 11:32:00 +01:00
Christoph Hellwig d247a70a4d ipr: fix compile failure
Fix a typo in the IPR_IOASC_HW_CMD_FAILED declaration.  Based on a patch
from Wen Xiong <wenxiong@linux.vnet.ibm.com>.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-26 10:07:27 +02:00
wenxiong@linux.vnet.ibm.com 3185ea6390 ipr: don't log error messages when applications issues illegal requests
Failing Device information are logged when IOA firmware detected these
illegal request such as IOA firmware doesn't support inquiry with page
code 2. The patch fixes the issue.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-25 14:23:18 +02:00
Wendy Xiong 5eeac3e99a [SCSI] ipr: Add new CCIN definition for Grand Canyon support
Add the appropriate definition and table entry for new hardware support.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-19 15:04:42 -07:00
Wendy Xiong 169b9ec83f [SCSI] ipr: Format HCAM overlay ID 0x21
This patch adds formatting error overlay 0x21 to improve debug capabilities.

[jejb: checkpatch fixes]
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-19 15:04:42 -07:00
Brian King 6270e5932a [SCSI] ipr: Handle early EEH
If, when the ipr driver loads, the adapter is in an EEH error state,
it will currently oops and not be able to recover, as it attempts
to access memory that has not yet been allocated. We've seen this
occur in some kexec scenarios. The following patch fixes the oops
and also allows the driver to recover from these probe time EEH errors.

[jejb: checkpatch fix]
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-19 15:04:39 -07:00
Wendy Xiong f94d996462 [SCSI] ipr: Add new CCIN definition for new hardware support
Add the appropriate definition and table entry for new hardware support.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-19 15:04:39 -07:00
Wendy Xiong 0b1f8d445b [SCSI] ipr: Remove extended delay bit on GSCSI reads/writes ops
This patch removes extended delay bit on GSCSI reads/writes ops, the
performance will be significanly better.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-19 15:04:38 -07:00
wenxiong@linux.vnet.ibm.com 95d8a25b52 [SCSI] ipr: increase dump size in ipr driver
To help debugging several new SAS controllers, increase the dump size in ipr
driver to 80MB.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-19 20:56:29 -08:00
wenxiong@linux.vnet.ibm.com 6634ff7ca2 [SCSI] ipr: Increase msi-x interrupt vectors to 16
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-19 07:39:04 -08:00
wenxiong@linux.vnet.ibm.com 43c5fdaf14 [SCSI] ipr: Add sereral new CCIN definitions for new adapters support
Add the appropriate definitions and table entries for new adapter support.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-08-26 12:51:32 +04:00
wenxiong@linux.vnet.ibm.com 222ab59468 [SCSI] ipr: Avoid target_destroy accessing memory after it was freed
Defined target_ids,array_ids and vsets_ids as unsigned long to avoid
target_destroy accessing memory after it was freed.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-12 15:07:42 -07:00
wenxiong@linux.vnet.ibm.com 1ac7c26d88 [SCSI] ipr: SATA DVD probing failed with 64bit adapter
Driver passed the wrong IOADL address to IOA adapter. The patch
fixes the issue.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-02 15:35:15 -07:00
Brian King bfae7820b8 [SCSI] ipr: Fix oops while resetting an ipr adapter
When resetting an ipr adapter, we use scsi_block_requests to
block any new commands from scsi core, and then unblock after
the reset. When hotplug removing an adapter, we shut it down
and go through this same code, but we've seen issues with
scsi_unblock_requests running after the adapter's memory has
been freed. There is really no need to block/unblock when
the adapter is being removed, so this patch skips the
block/unblock and will immediately fail any commands that
happen to make it to queuecommand while the adapter is
being shutdown.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-24 08:24:48 +00:00
wenxiong@linux.vnet.ibm.com 4415e44518 [SCSI] ipr: Driver version 2.6.0
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-30 10:48:53 +11:00
wenxiong@linux.vnet.ibm.com b53d124a15 [SCSI] ipr: Implement block iopoll
This patch implements blk iopoll in ipr driver for performance improvement.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-30 10:48:52 +11:00
wenxiong@linux.vnet.ibm.com 56d6aa33d3 [SCSI] ipr: Reduce lock contention
This patch reduces lock contention while implementing distributed
completion processing.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-30 10:48:52 +11:00
wenxiong@linux.vnet.ibm.com 05a6538a9a [SCSI] ipr: Add support for MSI-X and distributed completion
The new generation IBM SAS Controllers will support MSI-X interrupts and
Distributed Completion Processing features. This patch add these support
in ipr device driver.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-30 10:48:51 +11:00
Brian King b3b3b4070d [SCSI] ipr: Resource path error logging cleanup
The resource path as displayed by the ipr driver is the
location string identifying a location on the SAS fabric.
This patch adds the SCSI host number such that error logs
can be more easily correlated in multiple adapter configurations.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-30 10:48:51 +11:00
wenxiong@linux.vnet.ibm.com b8d5d568a3 [SCSI] ipr: Add sereral new CCIN definitions for new adapters support
Add the appropriate definitions and table entries for new adapter support.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-30 10:48:50 +11:00
Brian King b5e5ddcdee [SCSI] ipr: Driver version 2.5.4
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-24 13:10:28 +04:00
Brian King 172cd6e187 [SCSI] ipr: Reduce interrupt lock time
Reduce the amount of time the host lock is held in the interrupt handler
for improved performance.

[jejb: fix up checkpatch noise]
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-24 13:10:28 +04:00
Brian King 6993169486 [SCSI] ipr: Driver version 2.5.3
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 15:09:28 +01:00
Brian King 89aad42831 [SCSI] ipr: Increase max concurrent oustanding commands
Increase the total number of max concurrent outstanding commands
for the most recent family of adapters in order to improve overall
adapter performance.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 15:04:47 +01:00
Brian King 7dd21308b1 [SCSI] ipr: Remove unnecessary interrupt clearing on new adapters
The latest ipr hardware no longer requires the driver to issue any MMIOs
to clear the interrupt so remove this to optimize performance.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28 15:01:06 +01:00
Wayne Boyer cd9b3d04b4 [SCSI] ipr: update PCI ID definitions for new adapters
This patch updates some PCI ID definitions for new adapters based on the next
generation 64 bit IOA PCI interface chip.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-29 16:48:27 -06:00
Jan Kiszka fb51ccbf21 PCI: Rework config space blocking services
pci_block_user_cfg_access was designed for the use case that a single
context, the IPR driver, temporarily delays user space accesses to the
config space via sysfs. This assumption became invalid by the time
pci_dev_reset was added as locking instance. Today, if you run two loops
in parallel that reset the same device via sysfs, you end up with a
kernel BUG as pci_block_user_cfg_access detect the broken assumption.

This reworks the pci_block_user_cfg_access to a sleeping service
pci_cfg_access_lock and an atomic-compatible variant called
pci_cfg_access_trylock. The former not only blocks user space access as
before but also waits if access was already locked. The latter service
just returns false in this case, allowing the caller to resolve the
conflict instead of raising a BUG.

Adaptions of the ipr driver were originally written by Brian King.

Acked-by: Brian King <brking@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06 12:10:33 -08:00
Wayne Boyer 5a918353ec [SCSI] ipr: add definitions for additional adapter
Add the appropriate definition and table entry for an additional adapter.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-31 13:12:50 +04:00
Brian King 4c647e909f [SCSI] ipr: Fix BUG on adapter dump timeout
If an adapter dump times out, the ipr driver will abort the
dump and proceed to reset and recover the adapter. When an
adapter dump completes, the work thread which is reading the
adapter dump will initiate an adapter reset to recover the
adapter. However, when the adapter dump gets aborted, the
work thread should not initiate an adapter reset, since an
adapter reset is already in progress. This fixes a case of
calling pci_block_user_cfg_access overlapped, which results
in a BUG.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-20 10:19:55 -05:00
Wayne Boyer 14ed9cc7e7 [SCSI] ipr: Add support to flash FPGA and flash back DRAM images
The write buffer command is used to download and burn new IOA FW images.
The same interface can now be used to flash FPGA and flash back DRAM images.
To download and flash the new images takes more than 15 minutes, so increase
the write buffer command timeout to 30 minutes.

The FPGA and flash back DRAM images don't have the same card_type as the IOA FW
image. So, remove the sanity checking from the driver.  The adapter has sanity
checking and will only accept a valid image.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-16 10:56:27 -05:00
Brian King 41e9a69641 [SCSI] ipr: Stop reading adapter dump prematurely
When the ipr driver decides to dump the adapter, it changes the
sdt_state to GET_DUMP, then prepares the adapter so that the dump
can be read. However, if the ipr worker thread wakes up for some
reason before the driver has put the adapter in a state where it
can succesfully dump the adapter, the driver will start dumping
the adapter too early, which can potentially trigger a BUG check
in the pci config blocking API. Fix this by adding a new
sdt_state to differentiate between the ipr driver wanting to dump
the adapter in the near future and wanting to dump the adapter now.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-22 15:30:28 +04:00
Kleber Sacilotto de Souza 9c324b8ba8 [SCSI] ipr: Driver version 2.5.2
Bump the driver version.

Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 12:10:34 -05:00
Kleber Sacilotto de Souza 4d4dd70655 [SCSI] ipr: increase the dump size for 64 bit adapters
Currently the size of the dump generated by the driver is limited
in 4MB, which is insufficient to gather much useful data from the
new 64 bit adapters.

This patch makes the needed changes to increase the dump limit
for the 64 bit adapters to 32MB, or even to a bigger value in the
future, but keeping the current limitations for the legacy 32 bit
adapters.

Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 12:09:20 -05:00
Wayne Boyer ab6c10b136 [SCSI] ipr: fix synchronous request flags for better performance
In testing it was noticed that Extended Delay after Reset flag was being set
for gscsi and volume set devices.  This had a negative effect on performance
for volume sets.  The fix is to only set the flag for gscsi devices.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:16:44 -05:00
Wayne Boyer 110def851f [SCSI] ipr: fix mailbox register definition and add a delay before reading
The definition for the mailbox register for new adapters was incorrect.  The
value has been updated to the correct offset.

After an adapter reset, the mailbox register on the new adapters takes a
number of seconds to stabilize.  A delay has been added before reading the
register.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:23:55 -06:00
Wayne Boyer 32622bdea0 [SCSI] ipr: add definitions for a new adapter
There was an addition to the hardware roadmap that includes a new adapter.
This patch adds the new definitions for the adapter.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-25 16:29:02 -05:00
Wayne Boyer 7262026f0e [SCSI] ipr: fix array error logging
The structure definitions for reporting array errors did not have the correct
size for the Array WWID field.  This patch fixes those definitions.  It also
fixes part of the output formatting that did not have newlines and fixes size
calculations.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-07 17:24:44 -05:00
Wayne Boyer a87b04de66 [SCSI] ipr: Driver version 2.5.1
Bump the driver version.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-05 14:36:29 -03:00
Wayne Boyer 46d7456324 [SCSI] ipr: fix resource address formatting and add attribute for device ID
This patch fixes a resource address formatting problem where the first byte
was being zeroed out.

Also, the device ID is now made available as a sysfs attribute.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-05 14:33:42 -03:00
Wayne Boyer 4289a08680 [SCSI] ipr: change endian swap key to match hardware spec change
The value used to change the endian representation on the new adapters has
changed.  This patch updates that value.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:03:55 -05:00
Wayne Boyer b0f56d3d6b [SCSI] ipr: add support for new Obsidian-E embedded adapter
This patch allows the driver to recognize a new Obsidian-E based adapter that
uses a new subsystem ID.

This patch also fixes a few tab/space problems.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:03:54 -05:00
Wayne Boyer cb237ef7a4 [SCSI] ipr: add MMIO write to perform BIST for 64 bit adapters
The 64 bit chip used in new adapters does not properly support the BIST register
in PCI config space.  This patch implements an alternative MMIO write reset
method.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:03:49 -05:00
Wayne Boyer c5f1018796 [SCSI] ipr: add writeq definition if needed
Compiling the driver will fail on 32 bit powerpc and other
architectures where writeq is not defined.  This patch adds a
definition for writeq.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:01:40 -05:00