Commit Graph

7441 Commits

Author SHA1 Message Date
adam radford
495c560970 [SCSI] megaraid_sas: Convert 6,10,12 byte CDB's for FastPath IO
The following patch for megaraid_sas converts 6,10,12 byte CDB's to 16
byte CDB for large LBA's for FastPath IO.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:35:46 -04:00
adam radford
541f90b7c6 [SCSI] megaraid_sas: Fix bug where AENs could be lost in probe() and resume()
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:35:34 -04:00
adam radford
46fd256e05 [SCSI] megaraid_sas: Disable interrupts/free_irq() in megasas_shutdown()
The following patch for megaraid_sas disables interrupts and
free_irq() in megasas_shutdown().

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:35:09 -04:00
adam radford
7e70e73365 [SCSI] megaraid_sas: Check MFI_REG_STATE.fault.resetAdapter
The following patch for megaraid_sas fixes the function
megasas_reset_fusion() and makes the reset code check
MFI_REG_STATE.fault.resetAdapter.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:34:59 -04:00
adam radford
70d031f36f [SCSI] megaraid_sas: Remove un-used function
The following patch for megaraid_sas removes un-used function
megasas_return_cmd_for_smid().

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:34:47 -04:00
adam radford
3f1abce4ab [SCSI] megaraid_sas: Remove MSI-X black list, use MFI_REG_STATE instead
This patch for megaraid_sas removes the MSI-X black list and uses
MFI_REG_STATE.ready.msiEnable instead.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:34:12 -04:00
Xiangliang Yu
bb650a1bef [SCSI] libsas: fix SATA NCQ error
Current version of libsas can not handle SATA NCQ error.
This patch handle SATA NCQ error as AHCI do.

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:34:01 -04:00
Kashyap, Desai
5fd5cc83a8 [SCSI] mpt2sas: Driver version upgrade 08.100.00.02
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:33:35 -04:00
Kashyap, Desai
3ace8e052b [SCSI] mpt2sas: move even handling of MPT2SAS_TURN_ON_FAULT_LED into process context
Driver was a sending a SEP request during interrupt context which
required to go to sleep.

The fix is to rearrange the code so a fake event
MPT2SAS_TURN_ON_FAULT_LED is fired from interrupt context, then later
during the kernel worker threads processing, the SEP request is issued
to firmware.

Cc: stable@kernel.org
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:33:01 -04:00
Linus Torvalds
57d19e80f4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  b43: fix comment typo reqest -> request
  Haavard Skinnemoen has left Atmel
  cris: typo in mach-fs Makefile
  Kconfig: fix copy/paste-ism for dell-wmi-aio driver
  doc: timers-howto: fix a typo ("unsgined")
  perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c
  md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course').
  treewide: fix a few typos in comments
  regulator: change debug statement be consistent with the style of the rest
  Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations"
  audit: acquire creds selectively to reduce atomic op overhead
  rtlwifi: don't touch with treewide double semicolon removal
  treewide: cleanup continuations and remove logging message whitespace
  ath9k_hw: don't touch with treewide double semicolon removal
  include/linux/leds-regulator.h: fix syntax in example code
  tty: fix typo in descripton of tty_termios_encode_baud_rate
  xtensa: remove obsolete BKL kernel option from defconfig
  m68k: fix comment typo 'occcured'
  arch:Kconfig.locks Remove unused config option.
  treewide: remove extra semicolons
  ...
2011-05-23 09:12:26 -07:00
Linus Torvalds
06f4e926d2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits)
  macvlan: fix panic if lowerdev in a bond
  tg3: Add braces around 5906 workaround.
  tg3: Fix NETIF_F_LOOPBACK error
  macvlan: remove one synchronize_rcu() call
  networking: NET_CLS_ROUTE4 depends on INET
  irda: Fix error propagation in ircomm_lmp_connect_response()
  irda: Kill set but unused variable 'bytes' in irlan_check_command_param()
  irda: Kill set but unused variable 'clen' in ircomm_connect_indication()
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport()
  be2net: Kill set but unused variable 'req' in lancer_fw_download()
  irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication()
  atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined.
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer().
  rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window()
  pkt_sched: Kill set but unused variable 'protocol' in tc_classify()
  isdn: capi: Use pr_debug() instead of ifdefs.
  tg3: Update version to 3.119
  tg3: Apply rx_discards fix to 5719/5720
  ...

Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c
as per Davem.
2011-05-20 13:43:21 -07:00
Linus Torvalds
ad9471752e Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (110 commits)
  [SCSI] qla2xxx: Refactor call to qla2xxx_read_sfp for thermal temperature.
  [SCSI] qla2xxx: Unify the read/write sfp mailbox command routines.
  [SCSI] qla2xxx: Clear complete initialization control block.
  [SCSI] qla2xxx: Allow an override of the registered maximum LUN.
  [SCSI] qla2xxx: Add host number in reset and quiescent message logs.
  [SCSI] qla2xxx: Correctly read sfp single byte mailbox register.
  [SCSI] qla2xxx: Add qla82xx_rom_unlock() function.
  [SCSI] qla2xxx: Log if qla82xx firmware fails to load from flash.
  [SCSI] qla2xxx: Use passed in host to initialize local scsi_qla_host in queuecommand function
  [SCSI] qla2xxx: Correct buffer start in edc sysfs debug print.
  [SCSI] qla2xxx: Update firmware version after flash update for ISP82xx.
  [SCSI] qla2xxx: Fix hang during driver unload when vport is active.
  [SCSI] qla2xxx: Properly set the dsd_list_len for dsd_chaining in cmd type 6.
  [SCSI] qla2xxx: Fix virtual port failing to login after chip reset.
  [SCSI] qla2xxx: Fix vport delete hang when logins are outstanding.
  [SCSI] hpsa: Change memset using sizeof(ptr) to sizeof(*ptr)
  [SCSI] ipr: Rate limit DMA mapping errors
  [SCSI] hpsa: add P2000 to list of shared SAS devices
  [SCSI] hpsa: do not attempt PCI power management reset method if we know it won't work.
  [SCSI] hpsa: remove superfluous sleeps around reset code
  ...
2011-05-20 13:29:52 -07:00
Jens Axboe
698567f3fa Merge commit 'v2.6.39' into for-2.6.40/core
Since for-2.6.40/core was forked off the 2.6.39 devel tree, we've
had churn in the core area that makes it difficult to handle
patches for eg cfq or blk-throttle. Instead of requiring that they
be based in older versions with bugs that have been fixed later
in the rc cycle, merge in 2.6.39 final.

Also fixes up conflicts in the below files.

Conflicts:
	drivers/block/paride/pcd.c
	drivers/cdrom/viocd.c
	drivers/ide/ide-cd.c

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-05-20 20:33:15 +02:00
Linus Torvalds
fce519588a Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6
* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6:
  drivercore: revert addition of of_match to struct device
  of: fix race when matching drivers
2011-05-18 13:25:57 -07:00
Grant Likely
b1608d69cb drivercore: revert addition of of_match to struct device
Commit b826291c, "drivercore/dt: add a match table pointer to struct
device" added an of_match pointer to struct device to cache the
of_match_table entry discovered at driver match time.  This was unsafe
because matching is not an atomic operation with probing a driver.  If
two or more drivers are attempted to be matched to a driver at the
same time, then the cached matching entry pointer could get
overwritten.

This patch reverts the of_match cache pointer and reworks all users to
call of_match_device() directly instead.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-18 12:32:23 -06:00
Linus Torvalds
a2b9c1f620 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: don't delay blk_run_queue_async
  scsi: remove performance regression due to async queue run
  blk-throttle: Use task_subsys_state() to determine a task's blkio_cgroup
  block: rescan partitions on invalidated devices on -ENOMEDIA too
  cdrom: always check_disk_change() on open
  block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers
2011-05-18 06:49:02 -07:00
Jens Axboe
9937a5e2f3 scsi: remove performance regression due to async queue run
Commit c21e6beb removed our queue request_fn re-enter
protection, and defaulted to always running the queues from
kblockd to be safe. This was a known potential slow down,
but should be safe.

Unfortunately this is causing big performance regressions for
some, so we need to improve this logic. Looking into the details
of the re-enter, the real issue is on requeue of requests.

Requeue of requests upon seeing a BUSY condition from the device
ends up re-running the queue, causing traces like this:

scsi_request_fn()
        scsi_dispatch_cmd()
                scsi_queue_insert()
                        __scsi_queue_insert()
                                scsi_run_queue()
					scsi_request_fn()
						...

potentially causing the issue we want to avoid. So special
case the requeue re-run of the queue, but improve it to offload
the entire run of local queue and starved queue from a single
workqueue callback. This is a lot better than potentially
kicking off a workqueue run for each device seen.

This also fixes the issue of the local device going into recursion,
since the above mentioned commit never moved that queue run out
of line.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-05-17 11:04:44 +02:00
Joe Carnuccio
6ad11eaa8a [SCSI] qla2xxx: Refactor call to qla2xxx_read_sfp for thermal temperature.
Eliminate duplicate code by refactoring the calls to qla2xxx_read_sfp()
in qla2x00_get_thermal_temp(). This keeps the parameter values separate
from the mailbox register mechanics. This also allows qla2xxx_read_sfp()
to be the sole "spec" for READ SFP semantics.

Signed-off_by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:39:25 +04:00
Joe Carnuccio
6766df9e8a [SCSI] qla2xxx: Unify the read/write sfp mailbox command routines.
Make the read/write sfp mailbox command routines uniform, and remove redundancy.
Also protect against attempting to do a single byte dma in these routines.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:36:23 +04:00
Andrew Vasquez
773120e4df [SCSI] qla2xxx: Clear complete initialization control block.
Use proper init_cb_size member which takes into account
MID/non-MID init-cb structure sizes.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:35:57 +04:00
Andrew Vasquez
82515920b6 [SCSI] qla2xxx: Allow an override of the registered maximum LUN.
The 'max_lun' value registered for each scsi_host is currently
capped at 0xffff.  The new module parameter can allow for
2nd-level flat-space addressing method-infrastructure to be
supported.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:34:56 +04:00
Saurav Kashyap
24014d0464 [SCSI] qla2xxx: Add host number in reset and quiescent message logs.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:34:37 +04:00
Joe Carnuccio
1bff6cc8fb [SCSI] qla2xxx: Correctly read sfp single byte mailbox register.
When reading a single byte using the READ SFP mailbox command, the
single byte of data is returned in MB[1] and not MB[8].

The reason that MB[8] was being used is that the spec was unclear
as it evolved over time; and we have not needed to read a single
byte until recently.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:34:20 +04:00
Chad Dupuis
d652e09370 [SCSI] qla2xxx: Add qla82xx_rom_unlock() function.
Encapsulate the unlocking of the ROM lock in a function for better
code readability.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:32:39 +04:00
Chad Dupuis
875efad774 [SCSI] qla2xxx: Log if qla82xx firmware fails to load from flash.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:32:11 +04:00
Madhuranath Iyengar
134ae07850 [SCSI] qla2xxx: Use passed in host to initialize local scsi_qla_host in queuecommand function
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:31:57 +04:00
Joe Carnuccio
93d29cc63f [SCSI] qla2xxx: Correct buffer start in edc sysfs debug print.
The debug print prints the first byte of the buffer which is buf[8].

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:31:31 +04:00
Saurav Kashyap
53296788f4 [SCSI] qla2xxx: Update firmware version after flash update for ISP82xx.
The driver keeps a copy of the fw_version within the ha structure.
For ISP82xx, this local copy doesn't get updated, and as a result,
the old firmware version ends up getting displayed. This patch fixes
this issue.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:31:04 +04:00
Arun Easi
43ebf16d76 [SCSI] qla2xxx: Fix hang during driver unload when vport is active.
Bumping ref count during fc_vport_terminate() was the cause. vport
delete would wait for ref count to drop to zero and that would never
happen.

Cc: stable@kernel.org
Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:29:10 +04:00
Andrew Vasquez
fa96d92736 [SCSI] qla2xxx: Properly set the dsd_list_len for dsd_chaining in cmd type 6.
The firmware spec has the fcp_data_dseg_len defined as a 32-bit
value, while the corresponding field in the driver structure has
it defined as a 16-bit value.

Cc: stable@kernel.org
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:28:03 +04:00
Saurav Kashyap
cefcaba67a [SCSI] qla2xxx: Fix virtual port failing to login after chip reset.
This patch ensures qla82xx_watchdog is not being run for the vport. It also
makes sure that beacon ON is not done for the vport, as it will lead to the
waking up of the dpc thread again and again.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:27:32 +04:00
Arun Easi
9f40682e28 [SCSI] qla2xxx: Fix vport delete hang when logins are outstanding.
Timer is required to flush out entries that may be present in work queues.

Cc: stable@kernel.org
Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:25:38 +04:00
Joe Perches
7630abd0c6 [SCSI] hpsa: Change memset using sizeof(ptr) to sizeof(*ptr)
Not at all sure this is correct or appropriate to change,
but this seems odd.

Found via coccinelle script

@@
type T;
T* ptr;
expression E1;
@@

* memset(E1, 0, sizeof(ptr));

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:19:27 +04:00
Anton Blanchard
51f52a4752 [SCSI] ipr: Rate limit DMA mapping errors
I noticed a stream of errors from the IPR driver while doing
IOMMU fault injection. Rate limit the errors so we don't clog
up the console and logfiles.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:17:07 +04:00
Stephen M. Cameron
fda38518f2 [SCSI] hpsa: add P2000 to list of shared SAS devices
Signed-off-by: Scott Teel <scott.stacy.teel@hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:09:41 +04:00
Stephen M. Cameron
4638078697 [SCSI] hpsa: do not attempt PCI power management reset method if we know it won't work.
Just go straight to the soft-reset method instead.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:08:09 +04:00
Stephen M. Cameron
dfc2224828 [SCSI] hpsa: remove superfluous sleeps around reset code
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:07:50 +04:00
Stephen M. Cameron
64670ac870 [SCSI] hpsa: do soft reset if hard reset is broken
on driver load, if reset_devices is set, and the hard reset
attempts fail, try to bring up the controller to the point that
a command can be sent, and send it a soft reset command, then
after the reset undo whatever driver initialization was done to get
it to the point to take a command, and re-do it after the reset.

This is to get kdump to work on all the "non-resettable" controllers
(except 64xx controllers which can't be reset due to the potentially
shared cache module.)

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:07:28 +04:00
Stephen M. Cameron
cf0b08d0cd [SCSI] hpsa: use new doorbell-bit-5 reset method
The bit-2-doorbell reset method seemed to cause (survivable) NMIs
on some systems and (unsurvivable) IOCK NMIs on some G7 servers.
Firmware guys implemented a new doorbell method to alleviate these
problems triggered by bit 5 of the doorbell register.  We want to
use it if it's available.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:07:01 +04:00
Stephen M. Cameron
9a41338e5b [SCSI] hpsa: remove atrophied hpsa_scsi_setup function
hpsa_scsi_setup at one time contained enough code to justify
its existence, but that time has passed.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:06:30 +04:00
Stephen M. Cameron
2b870cb300 [SCSI] hpsa: clarify messages around reset behavior
When waiting for the board to become "not ready"
don't print a message saying "waiting for board to
become ready" (possibly followed by a message saying
"failed waiting for board to become not ready".  Instead,
it should be "waiting for board to reset" and "failed
waiting for board to reset."

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:06:11 +04:00
Stephen M. Cameron
2ed7127bce [SCSI] hpsa: increase time to wait for board reset
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:05:41 +04:00
Stephen M. Cameron
0ae01a32cb [SCSI] hpsa: factor out irq request code
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:05:20 +04:00
Stephen M. Cameron
2e9d1b3626 [SCSI] hpsa: factor out cmd pool allocation functions
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:05:03 +04:00
Stephen M. Cameron
516fda49e8 [SCSI] hpsa: wait longer for no-op to complete after resetting controller
This is to avoid the usual two or three messages about the command
timing out.  We're obviously not waiting long enough.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:04:32 +04:00
Stephen M. Cameron
580ada3c1e [SCSI] hpsa: do a better job of detecting controller reset failure
Detect failure of controller reset by noticing if the 32 bytes of
"driver version" we store on the hardware in the config table
fail to get zeroed out.  Previously we noticed if the controller
did not transition to "simple mode", but this did not detect reset
failure if the controller was already in simple mode prior to
the reset attempt (e.g. due to module parameter hpsa_simple_mode=1).

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:04:11 +04:00
Stephen M. Cameron
a2a431a4fd [SCSI] hpsa: delete old unused padding garbage
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:03:32 +04:00
Stephen M. Cameron
1fb011fb05 [SCSI] hpsa: remove unused parameter from hpsa_complete_scsi_command()
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:03:14 +04:00
Stephen M. Cameron
8cd21da71c [SCSI] hpsa: add readl after writel in interrupt mask setting code
This is to ensure the board interrupts are really off when
these functions return.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:02:56 +04:00
Stephen M. Cameron
d0be5ec869 [SCSI] hpsa: do readl after writel in main i/o path to ensure commands don't get lost.
Apparently we've been doin it rong for a decade, but only lately do we
run into problems.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:01:43 +04:00
Justin P. Mattock
70f23fd66b treewide: fix a few typos in comments
- kenrel -> kernel
- whetehr -> whether
- ttt -> tt
- sss -> ss

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-10 10:16:21 +02:00
Joe Perches
25f8f54f6e pcmcia: Convert pcmcia_device_id declarations to const
Saves about 50KB of data.

Old/new size of all objects:
   text	   data	    bss	    dec	    hex	filename
 563015	  80096	 130684	 773795	  bcea3	(TOTALS)
 610916	  32256	 130632	 773804	  bceac	(TOTALS)

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be> (for drivers/net/can/softing/softing_cs.c)
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-05-06 07:46:22 +02:00
David S. Miller
f4bfd99f85 libcxgbi: Use flowi4's saddr in cxgbi_check_route().
Instead of rt->rt_src

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03 20:43:40 -07:00
David S. Miller
31e4543db2 ipv4: Make caller provide on-stack flow key to ip_route_output_ports().
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03 20:25:42 -07:00
James Bottomley
c055f5b261 [SCSI] fix oops in scsi_run_queue()
The recent commit closing the race window in device teardown:

commit 86cbfb5607
Author: James Bottomley <James.Bottomley@suse.de>
Date:   Fri Apr 22 10:39:59 2011 -0500

    [SCSI] put stricter guards on queue dead checks

is causing a potential NULL deref in scsi_run_queue() because the
q->queuedata may already be NULL by the time this function is called.
Since we shouldn't be running a queue that is being torn down, simply
add a NULL check in scsi_run_queue() to forestall this.

Tested-by: Jim Schutt <jaschut@sandia.gov>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-03 15:30:00 -05:00
Jayamohan Kallickal
8a025bbc8f [SCSI] be2iscsi: update version
Bump version.

Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 16:35:11 -05:00
Jayamohan Kallickal
069adc7b06 [SCSI] be2iscsi: fix chip cleanup
This patch fixes a bug where proper queue id's were not passed to
chip for cleanup.

Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 16:34:41 -05:00
Jayamohan Kallickal
665d6d94b7 [SCSI] be2iscsi: fix boot hang due to interrupts not getting rearmed
This patch fixes a bug where the interrupts were not rearmed if
the Interrupt Mask was enabled. This patch checks for Interrupt mask
enabled and still rearms interrupt generation even if the Interrupt
mask was enabled

Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 16:33:46 -05:00
Tomas Henzl
87f76152df [SCSI] arcmsr: simplify assumptions in dma_alloc_coherent()
The code currently computes an offset into a dma_alloc_coherent() area
on the assumption that the alignment is imprecise.  In fact, the API
guarantees PAGE_SIZE alignment, so the offset calculation is always
zero: remove it.

[jejb: make description actually descriptive]
Signed-off-by: Tomas henzl <thenzl@redhat.com>
Acked-by: Nick Cheng<nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 16:32:23 -05:00
Tomas Henzl
8b7eb86f61 [SCSI] arcmsr: simplify some double loops in sleeping functions
I removed outer loops in ...wait_msgint_ready the sleeptime and
retrycount are in fact never changed so I changed them into
defines. In arcmsr_flush_hba_cache is a loop removed, which printed
the same printk 100 times, one line in log is enough I think.  The
arcmsr_sleep_for_bus_reset has lost a functionality with the latest
patches, The only thing the function does is a long sleep, so it's
replaced with a ssleep.

[jejb: checkpatch fixes]
Signed-off-by: Tomas henzl <thenzl@redhat.com>
Acked-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 16:28:28 -05:00
Vasu Dev
134a4e27a2 [SCSI] bnx2fc: setup em for npiv port
Use fc_exch_mgr_list_clone to setup em for npiv port.

Also remove redundant vport and lport initializations.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Acked-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 16:19:48 -05:00
Jeff Mahoney
e37c4913c5 [SCSI] iterate over devices individually for /proc/scsi/scsi
On systems with very large numbers (> 1600 or so) of SCSI devices,
cat /proc/scsi/scsi ends up failing with -ENOMEM. This is due to
the show routine simply iterating over all of the devices with
bus_for_each_dev(), and trying to dump all of them into the buffer
at the same time. On my test system (using scsi_debug with 4064 devices),
the output ends up being ~ 632k, far more than kmalloc will typically allow.

This patch defines its own seq_file opreations to iterate over the scsi
devices.The result is that each show() operation only dumps ~ 180 bytes
into the buffer at a time so we don't run out of memory.

If the "Attached devices" header isn't required, we can dump the
sfile->private bit completely.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 13:04:02 -05:00
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
Brian King
201aed6784 [SCSI] ibmvscsi: Improve CRQ reset reliability
This patch fixes an issue seen where an event occurs
which causes the ibmvscsi driver to reset its CRQ. Upon
re-registering its CRQ, it receives H_CLOSED, indicating
the Virtual I/O Server is not yet ready to receive commands.
This resulted in the ibmvscsi driver essentially offlining
the adapter and not recovering. The fix is to re-enable
our interrupt so that when the Virtual I/O server is ready
and sends a CRQ init, we will be able to receive it and
resume initialization of the VSCSI adapter.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 12:09:58 -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
Xiangliang Yu
0b15fb1fdf [SCSI] mvsas: add support for Task collector mode and fixed relative bugs
1. Add support for Task collector mode.
2. Fixed relative collector mode bug:
   - I/O failed when disks is on two ports
   - system hang when hotplug disk
   - system hang when unplug disk during run IO
3. Unlock ap->lock within .lldd_execute_task for direct mode to
   improve performance

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 12:08:03 -05:00
Xiangliang Yu
8214028344 [SCSI] mvsas: add support for Marvell 88SE9445/88SE9485
This is support for Marvell 88SE9445/88SE9485 SAS/SATA HBA, which
is based on Marvell 88SE9480.

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 12:06:19 -05:00
Martin George
c0d289b3e5 [SCSI] scsi_dh_alua: Attach to UNAVAILABLE/OFFLINE AAS devices
The SCSI ALUA handler currently fails to attach to devices
reporting an UNAVAILABLE/OFFLINE AAS. But given that an
UNAVAILABLE/OFFLINE AAS can transition to other states
like ACTIVE/OPTIMIZED, ACTIVE/NON-OPTIMIZED, etc. as per
SPC4, this ALUA handler behavior should be rectified so
as to attach to devices which also report an
UNAVAILABLE/OFFLINE AAS.

Signed-off-by: Martin George <marting@netapp.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 12:05:40 -05:00
Nithin Nayak Sujir
befc9b4dda [SCSI] bnx2fc: increase cleanup wait time
FW may take more time cleaning up IOs issued to multiple targets.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:53:17 -05:00
Nithin Nayak Sujir
068bdce412 [SCSI] bnx2fc: Do not use HBA_DBG macro when lport is not available
Use MISC_DBG instead.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:52:57 -05:00
Nithin Nayak Sujir
35dd71ae82 [SCSI] bnx2fc: call scsi_done if session goes to not ready from ready
If the session is not ready yet, we ask the SCSI-ml to retry. However, if the
session is just uploaded, we should not retry, but instead call scsi_done to
fail the IO.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:52:38 -05:00
Nithin Nayak Sujir
0117ddb0c8 [SCSI] bnx2fc: Release the reference to hba only after the interface is destroyed
Prematurely decrementing the reference may lead to cmd_mgr becoming NULL with
the cmds are still active.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:52:18 -05:00
Nithin Nayak Sujir
112f661d6d [SCSI] scsi_transport_fc: Fix deadlock during fc_remove_host
Creating and destroying fcoe interface in a tight loop leads to a system
deadlock with the following call traces:

Call Trace:
[<ffffffff814f4b3d>] schedule_timeout+0x1fd/0x2c0
[<ffffffff814f469f>] ? wait_for_common+0x4f/0x190
[<ffffffff814f469f>] ? wait_for_common+0x4f/0x190
[<ffffffff814f4737>] wait_for_common+0xe7/0x190
[<ffffffff81042fa0>] ? default_wake_function+0x0/0x20
[<ffffffff81082c2d>] ? trace_hardirqs_on+0xd/0x10
[<ffffffff814f48bd>] wait_for_completion+0x1d/0x20
[<ffffffff81066d90>] flush_workqueue+0x290/0x5f0
[<ffffffff81066b00>] ? flush_workqueue+0x0/0x5f0
[<ffffffff81067148>] destroy_workqueue+0x38/0x340
[<ffffffffa0260289>] fc_remove_host+0x1b9/0x1f0 [scsi_transport_fc]
[<ffffffffa02ed195>] bnx2fc_if_destroy+0xc5/0x1f0 [bnx2fc]
[<ffffffffa02ed33a>] bnx2fc_destroy+0x7a/0x100 [bnx2fc]
[<ffffffffa02c789b>] fcoe_transport_destroy+0x9b/0x1b0 [libfcoe]
[<ffffffff81069ec2>] param_attr_store+0x52/0x80
[<ffffffff81069976>] module_attr_store+0x26/0x30
[<ffffffff8119e726>] sysfs_write_file+0xe6/0x170
[<ffffffff81134710>] vfs_write+0xd0/0x1a0
[<ffffffff811348e4>] sys_write+0x54/0xa0
[<ffffffff81002e02>] system_call_fastpath+0x16/0x1b
Call Trace:
[<ffffffff81074865>] async_synchronize_cookie_domain+0x75/0x120
[<ffffffff8106caa0>] ? autoremove_wake_function+0x0/0x40
[<ffffffff81074925>] async_synchronize_cookie+0x15/0x20
[<ffffffff8107494c>] async_synchronize_full+0x1c/0x40
[<ffffffffa0057466>] sd_remove+0x36/0xc0 [sd_mod]
[<ffffffff81358a75>] __device_release_driver+0x75/0xe0
[<ffffffff81358bef>] device_release_driver+0x2f/0x50
[<ffffffff81357aee>] bus_remove_device+0xbe/0x120
[<ffffffff813553ef>] device_del+0x12f/0x1e0
[<ffffffff8137454d>] __scsi_remove_device+0xbd/0xc0
[<ffffffff81374585>] scsi_remove_device+0x35/0x50
[<ffffffff813746a7>] __scsi_remove_target+0xe7/0x110
[<ffffffff81374730>] ? __remove_child+0x0/0x30
[<ffffffff81374753>] __remove_child+0x23/0x30
[<ffffffff81354a2c>] device_for_each_child+0x4c/0x80
[<ffffffff81374703>] scsi_remove_target+0x33/0x60
[<ffffffffa02622c6>] fc_starget_delete+0x26/0x30 [scsi_transport_fc]
[<ffffffffa026271a>] fc_rport_final_delete+0xaa/0x200 [scsi_transport_fc]
[<ffffffff8106585a>] process_one_work+0x1aa/0x540
[<ffffffff810657eb>] ? process_one_work+0x13b/0x540
[<ffffffffa0262670>] ? fc_rport_final_delete+0x0/0x200 [scsi_transport_fc]
[<ffffffff81067ac9>] worker_thread+0x179/0x410
[<ffffffff81067950>] ? worker_thread+0x0/0x410
[<ffffffff8106c546>] kthread+0xb6/0xc0
[<ffffffff8103879b>] ? finish_task_switch+0x4b/0xe0
[<ffffffff81003ca4>] kernel_thread_helper+0x4/0x10
[<ffffffff814f7994>] ? restore_args+0x0/0x30
[<ffffffff8106c490>] ? kthread+0x0/0xc0
[<ffffffff81003ca0>] ? kernel_thread_helper+0x0/0x10

fc_remove_host() waits for flushing the workqueue, but it is stuck at flushing
the first work. The first work doesnt complete, because it is waiting for async
layer to complete the IOs. The async layer cannot complete the IO as the
terminate_rport_io for the second work was not called, which will be called
only when the first work completes. Hence the deadlock.  To resolve this
deadlock, the workqueue allocation has been modified from
create_singlethread_workqueue() to alloc_workqueue().

In addition, fc_terminate_rport_io() should be called before the
scsi_flush_work() to avoid the similar deadlock as above.

scsi fc alloc queue. move terminate rport io before flush

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:50:22 -05:00
James Smart
b413f498e1 [SCSI] lpfc 8.3.23: Update driver version to 8.3.23
Update driver version to 8.3.22

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:11:09 -05:00
James Smart
b6e3b9c606 [SCSI] lpfc 8.3.23: BSG additions and fixes
- Fixed the mixed declarations and codes which violate ISO C90
   (declarations in subsections that assign at declaration)
- Add BSG data transfer size protection in mailbox command pass-through path
- Invoke BSG job_done while holding spinlock to fix deadlock
- Added support for checking SLI_CONFIG subcommands
- Fixed bug in BSG mailbox size check to non-embedded external buffer

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:10:41 -05:00
James Smart
c31098cef5 [SCSI] lpfc 8.3.23: Fixes related to new hardware
Fixes related to new hardware

- Restrict driver to look at BAR2 or BAR4 only for if_type 0.
- Allow SLI4 with FCOE_MODE not set for new SLI4 FC adapters.
- Add Temporary RPI field to the ELS request WQE.
- Do not override CT field in issue_els_flogi for SLI4 IF type 2
- For RQ_CREATE_V2 mbx cmd: fill in the rqe_size and page_size for RQ_CREATE.

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:07:33 -05:00
James Smart
9589b062f5 [SCSI] lpfc 8.3.23: Miscellaneous fixes
Miscellaneous fixes

- Do not limit RPI Count to a minimum of 64
- Fix FCFI incorrect on received unsolicited frames.
- Save the FCFI returned in the REG_FCFI mailbox command if it was successful.
- Fixed Vports not sending FDISC after lips.
- Align based on the SLI4_PAGE_SIZE.
- Fixed double byte swap on received RRQ.
- Fixed mask size for the wq_id mask from 0x7F to 0x7FFF.
- Clear FC_FABRIC flag when NPIV LOGO completes (and add a log message).
- Modified driver to skip round robin only when ulpStatus==LOCAL_REJECT
  and word4=SEQUENCE_TIMEOUT to prevent FLOGI to disconnected FCF.
- Don't add rport if driver unloading

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:03:38 -05:00
James Smart
86a80846a6 [SCSI] lpfc 8.3.23: Debugfs enhancements
Debugfs enhancements

- Added iDiag support for new adapters.
- Added queue entry access methods.
- Fix host/port index in decimal
- Added Doorbell register access methods.

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:01:52 -05:00
Krishna Gudipati
7c38c05b3e [SCSI] bfa: Move debugfs initialization before bfa init.
Move the initialization of debugfs before bfa init, to enable us to
collect driver/firmware traces if init fails.  Also add a printk to
display message on bfa_init failure.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:55:56 -05:00
Jing Huang
61338a0b34 [SCSI] bfa: firmware download fix
This patch includes fixes for two issues releated to firmware download
implementation: 1) Merged memory leak fix provided by Jesper Juhl
<jj@chaosbits.net>. Basically we need to call release_firmware() after
request_firmware(). 2) fixed issues with the firmware download interface
as pointed out by Rolf Eike Beer <eike@sf-mail.de> in linux-scsi. Rearranged
the code and fixed related function protypes.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:53:49 -05:00
Wayne Boyer
7dacb64f49 [SCSI] ipr: improve interrupt service routine performance
During performance testing on P7 machines it was observed that the interrupt
service routine was doing unnecessary MMIO operations.

This patch rearranges the logic of the routine and moves some of the code out
of the main routine.  The result is that there are now fewer MMIO operations in
the performance path of the code.

As a result of the above change, an existing condition was exposed where the
driver could get an "unexpected" hrrq interrupt.  The original code would flag
the interrupt as unexpected and then reset the adapter.  After further analysis
it was confirmed that this condition can occasionally occur and that the
interrupt can safely be ignored.  Additional code in this patch detects this
condition, clears the interrupt and allows the driver to continue without
resetting 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>
2011-05-01 10:48:53 -05:00
Moger, Babu
3425fbfe22 [SCSI] scsi_dh_rdac : decide whether to send mode select based on operating mode
Based on the operating modes, handler decides whether to send mode
select or not. Purpose here is to reduce io-shipping as much as
possible whenever there is an option.

Signed-off-by: Babu Moger <babu.moger@lsi.com>
Reviewed-by: Yanling Qi <yanling.qi@lsi.com>
Reviewed-by: Sudhir Dachepalli <Sudhir.Dachepalli@lis.com>
Reviewed-by: Somasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com>
Reviewed-by: Bob Stankey <Robert.Stankey@lsi.com>
Reviewed-by: Vijay Chauhan <Vijay.Chauhan@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:47:41 -05:00
Moger, Babu
1c3afc4234 [SCSI] scsi_dh_rdac : Detect the different RDAC operating modes
This patch detects different operating RDAC modes during the
discovery. It also collects the information about the preferred path.

Signed-off-by: Babu Moger <babu.moger@lsi.com>
Reviewed-by: Yanling Qi <yanling.qi@lsi.com>
Reviewed-by: Sudhir Dachepalli <Sudhir.Dachepalli@lis.com>
Reviewed-by: Somasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com>
Reviewed-by: Bob Stankey <Robert.Stankey@lsi.com>
Reviewed-by: Vijay Chauhan <Vijay.Chauhan@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:46:57 -05:00
Moger, Babu
eebe9b96dd [SCSI] scsi_dh_rdac : Add definitions for different RDAC operating modes
This patch adds definitions to support for different operating modes
for LSI rdac storage.  Currently, rdac support 3 operation modes.

1. RDAC mode(legacy)
2. AVT mode
3. IOSHIP mode

These definitions are used while activating the path(rdac_activate).

Signed-off-by: Babu Moger <babu.moger@lsi.com>
Reviewed-by: Yanling Qi <yanling.qi@lsi.com>
Reviewed-by: Sudhir Dachepalli <Sudhir.Dachepalli@lis.com>
Reviewed-by: Somasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com>
Reviewed-by: Bob Stankey <Robert.Stankey@lsi.com>
Reviewed-by: Vijay Chauhan <Vijay.Chauhan@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:45:22 -05:00
Wayne Boyer
630ad8317f [SCSI] ipr: remove unneeded volatile declarations
This patch removes three volatile declarations based on some feedback and code
analysis.

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 10:44:18 -05:00
Kashyap, Desai
0bdccdb0a0 [SCSI] mpt2sas : WarpDrive New product SSS6200 support added
This patch has Support for the new solid state device product SSS6200
from LSI and relavent features w.r.t SSS6200.

The major feature added in this driver is supporting Direct-I/O to the
SSS6200 storage.There are some additional changes done to avoid exposing
the RAID member disks to the OS and hiding/exposing drives based on the
OEM Specific Flag in Manufacturing Page10 (this is required to handle
specific changes in the SSS6200 firmware).

Each and every changes are listed below.
1. Hiding IR related messages.
For SSS6200, the driver is modified not to print IR related events.
Even if the debugging is enabled the IR related messages will not be displayed.
In some places if there is a need to display a message related to IR the
string "IR" is replaced with string "DD" and the string "volume" is replaced
with "direct drive". But the function names are not changed hence there are
some places where the reference to volume can be seen if debug level is set.

2. Removed RAID transport support
In Linux the user can retrieve RAID volume information from the sysfs directory.
This support is removed for SSS6200.

3. Direct I/O support.
The driver tries to enable direct I/O when a volume is reported to the driver
by the firmware through IRCC events and the driver does this just before
reporting to the OS, hence all the OS issued I/O can go through direct path
if they can, The first validation is to see whether the manufacturing page10
flag is set to expose all drives always. If that is set, the driver will not
enable direct I/O and displays the message "DDIO" is disabled globally as
drives are exposed. The driver checks whether there is more than one volume
in the controller, if so the direct I/O will be disabled globally for all
volumes in the controller and the message displayed will be "DDIO is disabled
globally as number of drives > 1.
If retrieving number of PD is failed the driver will not enable direct I/O
and displays the message Failure in computing number of drives DDIO disabled.
If memory allocation for RAIDVolumePage0 is failed, the driver will not enable
direct I/O and displays the message Memory allocation failure for
RVPG0 DDIO disabled.  If retrieving RAIDVolumePage0 is failed the driver will
not enable direct I/O and displays the message Failure in retrieving
RVPG0 DDIO disabled

If the number of PD in a volume is greater than 8, then the direct I/O will
be disabled.
If any of individual drives handle retrieval is failed then the DD-IO will
be disabled.
If the volume is not RAID0 or if the block size is not 512 then the DD-IO will
be disabled.
If the volume size is greater than 2TB then the DD-IO will be disabled.
If the driver is not able to find a valid stripe exponent using the configured
stripe size then the DD-IO will be disabled

When the DD-IO is enabled the driver will check every I/O request issued to
the storage and checks whether the request is either
READ6/WRITE6/READ10/WRITE10, if it is and if the complete I/O transfer
is within a stripe size then the I/O is redirected to
the drive directly instead of the volume.

On completion of every I/O, if the completion is failure means if the reply
is address reply with a reply frame associated with it, then the type of I/O
will be checked, if the I/O is direct then the I/O will be retried to
the volume once.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Reviewed-by: Eric Moore <eric.moore@lsi.com>
Reviewed-by: Sathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:36:54 -05:00
Christoph Hellwig
a7c44d4ad1 [SCSI] mpt2sas: do not check serial_number in the abort handler
The SCSI midlayer stops all command processing when in error handling, which
means there is no chance for command reuse when the abort handler is called.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:23:45 -05:00
Christoph Hellwig
5cd049a599 [SCSI] remove cmd->serial_number litter
Stop using cmd->serial_number in printks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:22:40 -05:00
Vasu Dev
f04ca1b654 [SCSI] fcoe: have fcoe log off and lport destroy before ndo_fcoe_disable
Currently fcoe interface cleanup is done after ndo_fcoe_disable
and that prevents logoff going out to the peer, so this patch
moves all netdev cleanup and its releasing inside
fcoe_interface_cleanup to have log off before ndo_fcoe_disable
disables the fcoe.

This patch also fixes asymmetric rtnl locking around fcoe_if_destroy,
as currently this function requires rtnl held by its caller
and then have this func drops the lock, instead now don't have
any processing under rtnl inside fcoe_if_destroy, this required
moving few func to get build working again.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:20:59 -05:00
Vasu Dev
f2817ec2e0 [SCSI] libfc: rec tov value and REC_TOV_CONST units usages is incorrect
Added REC_TOV_CONST intent was to have rec tov as e_d_tov + 1s
but currently it is e_d_tov + 1ms since e_d_tov is stored in ms
unit.

Also returned rec tov by get_fsp_rec_tov is in ms and this ms tov
is used as-is with fc_fcp_timer_set expecting jiffies tov.

Fixed this by having get_fsp_rec_tov return rec tov in jiffies
as e_d_tov + 1s and then use jiffies tov w/ fc_fcp_timer_set.

Also some cleanup, no need to cache get_fsp_rec_tov return value
in local rec_tov at various places.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:20:56 -05:00
Vasu Dev
66a5b3acba [SCSI] libfc: remove duplicate ema_list init
As ema_list is already initialized by libfc_host_alloc.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:20:52 -05:00
Yi Zou
4ef7fb150f [SCSI] libfcoe: fix wrong comment in fcoe_transport_detach
fix typo of '_attach' -> '_detach' in the comment.

Reported-by: Frank Zhang <frank_1.zhang@intel.com>
Signed-off-by: Yi Zou <yi.zou@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:20:50 -05:00
Yi Zou
a01a5a5789 [SCSI] libfcoe: fix possible buffer overflow in fcoe_transport_show
possible buffer overflow in fcoe_transport_show when reaching the end of
buffer and crossing PAGE_SIZE boundary.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:20:45 -05:00
Yi Zou
69922fcd53 [SCSI] libfcoe: clean up netdev mapping properly when the transport goes away
When rmmoving the underlying fcoe transport driver module by force when
it's attached and in use, the correspoding netdev mapping should be
cleaned up properly as well, otherwise the lookup for a given netdev
for the transport would still return non NULL pointer, causing "unable
to handle paging request" bug.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:20:42 -05:00
Robert Love
9c8cce8e41 [SCSI] libfc: Move host_lock usage into ramp_up/down routines
The host_lock is still used to protect the can_queue
value in the Scsi_Host, but it doesn't need to be held
and released by each caller. This patch moves the lock
usage into the fc_fcp_can_queue_ramp_up and
fc_fcp_can_queue_ramp_down routines.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:20:33 -05:00
Kirill A. Shutemov
63ce249994 [SCSI] esp, scsi_tgt_lib, fcoe: use list_move() instead of list_del()/list_add() combination
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:20:10 -05:00
Yi Zou
38b34aca30 [SCSI] fcoe: remove unnecessary module state check
The check of module state being MODULE_STATE_LIVE is no longer needed for the
individual fcoe transport driver, e.g., fcoe.ko, as sysfs entries now go to
libfcoe now, if it reaches fcoe.ko, it has to be already registered. The module
state check for libfcoe will guard the possible race condition of sysfs being
writable before module_init function is called and after module_exit.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:19:05 -05:00
Robert Love
ee5df628c1 [SCSI] fcoe: Remove mutex_trylock/restart_syscall checks
These checks were initially added to avoid a lockdep
false positive when dealing with the s_active, rtnl
and fcoe_config_mutex mutexes. Recently the create,
destroy, enable and disable sysfs entries were moved
from fcoe.ko to libfcoe.ko. With this change the mutex
usage was shuffled around and the lockdep false
positive stopped happening. We can now remove these
checks.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:19:03 -05:00
Robert Love
b3960afe04 [SCSI] libfcoe: Remove mutex_trylock/restart_syscall checks
This code was incorrectly ported from fcoe.c when the
fcoe transport infrastructure was put into place. It
was originally needed in fcoe.c when dealing with
the rtnl mutex. In that code it was only needed to
avoid a lockdep false positive. In libfcoe we don't
deal with the rtnl mutex, we don't get the lockdep
false positive and therefore we don't need these
checks.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:18:59 -05:00
Julia Lawall
5c2dce26fd [SCSI] bnx2fc: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:18:31 -05:00