Commit Graph

750 Commits

Author SHA1 Message Date
Hannes Reinecke
cfd2aff711 scsi: mpt: Move scsi_remove_host() out of mptscsih_remove_host()
Commit c5ce0abeb6 ("scsi: sas: move scsi_remove_host call...")  moved
the call to scsi_remove_host() into sas_remove_host(), but forgot to
modify the mpt drivers.

Fixes: c5ce0abeb6 ("scsi: sas: move scsi_remove_host call into sas_remove_host")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-24 18:21:17 -04:00
Colin Ian King
6b8accea1b scsi: fusion: fix spelling mistake: "Persistancy" -> "Persistency"
trivial fix to spelling mistake

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-24 18:15:26 -04:00
Linus Torvalds
cdc194705d SCSI misc on 20170220
This update includes the usual round of major driver updates (ncr5380,
 ufs, lpfc, be2iscsi, hisi_sas, storvsc, cxlflash, aacraid,
 megaraid_sas, ).  There's also an assortment of minor fixes and the
 major update of switching a bunch of drivers to pci_alloc_irq_vectors
 from Christoph.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This update includes the usual round of major driver updates (ncr5380,
  ufs, lpfc, be2iscsi, hisi_sas, storvsc, cxlflash, aacraid,
  megaraid_sas, ...).

  There's also an assortment of minor fixes and the major update of
  switching a bunch of drivers to pci_alloc_irq_vectors from Christoph"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (188 commits)
  scsi: megaraid_sas: handle dma_addr_t right on 32-bit
  scsi: megaraid_sas: array overflow in megasas_dump_frame()
  scsi: snic: switch to pci_irq_alloc_vectors
  scsi: megaraid_sas: driver version upgrade
  scsi: megaraid_sas: Change RAID_1_10_RMW_CMDS to RAID_1_PEER_CMDS and set value to 2
  scsi: megaraid_sas: Indentation and smatch warning fixes
  scsi: megaraid_sas: Cleanup VD_EXT_DEBUG and SPAN_DEBUG related debug prints
  scsi: megaraid_sas: Increase internal command pool
  scsi: megaraid_sas: Use synchronize_irq to wait for IRQs to complete
  scsi: megaraid_sas: Bail out the driver load if ld_list_query fails
  scsi: megaraid_sas: Change build_mpt_mfi_pass_thru to return void
  scsi: megaraid_sas: During OCR, if get_ctrl_info fails do not continue with OCR
  scsi: megaraid_sas: Do not set fp_possible if TM capable for non-RW syspdIO, change fp_possible to bool
  scsi: megaraid_sas: Remove unused pd_index from megasas_build_ld_nonrw_fusion
  scsi: megaraid_sas: megasas_return_cmd does not memset IO frame to zero
  scsi: megaraid_sas: max_fw_cmds are decremented twice, remove duplicate
  scsi: megaraid_sas: update can_queue only if the new value is less
  scsi: megaraid_sas: Change max_cmd from u32 to u16 in all functions
  scsi: megaraid_sas: set pd_after_lb from MR_BuildRaidContext and initialize pDevHandle to MR_DEVHANDLE_INVALID
  scsi: megaraid_sas: latest controller OCR capability from FW before sending shutdown DCMD
  ...
2017-02-21 11:51:42 -08:00
Christoph Hellwig
b6a05c823f scsi: remove eh_timed_out methods in the transport template
Instead define the timeout behavior purely based on the host_template
eh_timed_out method and wire up the existing transport implementations
in the host templates.  This also clears up the confusion that the
transport template method overrides the host template one, so some
drivers have to re-override the transport template one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-06 19:10:03 -05:00
Christoph Hellwig
82ed4db499 block: split scsi_request out of struct request
And require all drivers that want to support BLOCK_PC to allocate it
as the first thing of their private data.  To support this the legacy
IDE and BSG code is switched to set cmd_size on their queues to let
the block layer allocate the additional space.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-27 15:08:35 -07:00
Corentin Labbe
e0075478ca scsi: mptlan: Remove linux/miscdevice.h from mptlan.h
This patch remove linux/miscdevice.h from mptlan.h since mptlan.h does
not contain any miscdevice.  The only user of it is mptctl.c which
already include linux/miscdevice.h So no need to include it twice.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-05 00:21:12 -05:00
Linus Torvalds
7c0f6ba682 Replace <asm/uaccess.h> with <linux/uaccess.h> globally
This was entirely automated, using the script by Al:

  PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
  sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
        $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-24 11:46:01 -08:00
Linus Torvalds
a829a8445f SCSI misc on 20161213
This update includes the usual round of major driver updates (ncr5380,
 lpfc, hisi_sas, megaraid_sas, ufs, ibmvscsis, mpt3sas).  There's also
 an assortment of minor fixes, mostly in error legs or other not very
 user visible stuff.  The major change is the pci_alloc_irq_vectors
 replacement for the old pci_msix_.. calls; this effectively makes IRQ
 mapping generic for the drivers and allows blk_mq to use the
 information.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This update includes the usual round of major driver updates (ncr5380,
  lpfc, hisi_sas, megaraid_sas, ufs, ibmvscsis, mpt3sas).

  There's also an assortment of minor fixes, mostly in error legs or
  other not very user visible stuff. The major change is the
  pci_alloc_irq_vectors replacement for the old pci_msix_.. calls; this
  effectively makes IRQ mapping generic for the drivers and allows
  blk_mq to use the information"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (256 commits)
  scsi: qla4xxx: switch to pci_alloc_irq_vectors
  scsi: hisi_sas: support deferred probe for v2 hw
  scsi: megaraid_sas: switch to pci_alloc_irq_vectors
  scsi: scsi_devinfo: remove synchronous ALUA for NETAPP devices
  scsi: be2iscsi: set errno on error path
  scsi: be2iscsi: set errno on error path
  scsi: hpsa: fallback to use legacy REPORT PHYS command
  scsi: scsi_dh_alua: Fix RCU annotations
  scsi: hpsa: use %phN for short hex dumps
  scsi: hisi_sas: fix free'ing in probe and remove
  scsi: isci: switch to pci_alloc_irq_vectors
  scsi: ipr: Fix runaway IRQs when falling back from MSI to LSI
  scsi: dpt_i2o: double free on error path
  scsi: cxlflash: Migrate scsi command pointer to AFU command
  scsi: cxlflash: Migrate IOARRIN specific routines to function pointers
  scsi: cxlflash: Cleanup queuecommand()
  scsi: cxlflash: Cleanup send_tmf()
  scsi: cxlflash: Remove AFU command lock
  scsi: cxlflash: Wait for active AFU commands to timeout upon tear down
  scsi: cxlflash: Remove private command pool
  ...
2016-12-14 10:49:33 -08:00
Helge Deller
4aaa4065f7 scsi: mptfusion: Fix printk continuations
Fix the printk continuations when running the mptfusion driver.
This patch brings the capabilities into one single syslog line again:
   mptbase: ioc1: Initiating bringup
   ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
   scsi host3: ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=67

Tested on a parisc C8000 machine.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-17 20:49:29 -05:00
Andy Shevchenko
caf4ebcbe7 scsi: fusion: print lan address via %pMR
LAN MAC addresses can be printed directly using %pMR specifier.

Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Chaitra P B <chaitra.basappa@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 17:29:57 -05:00
Christoph Hellwig
4e6f767dba scsi: mptscsih: Remove bogus interpretation of request->ioprio
Having an I/O priority does not mean we should send all requests as HEAD
OF QUEUE tags.

Reported-by: Adam Manzanares <adam.manzanares@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 17:29:48 -05:00
Jarod Wilson
b3e3893e12 net: use core MTU range checking in misc drivers
firewire-net:
- set min/max_mtu
- remove fwnet_change_mtu

nes:
- set max_mtu
- clean up nes_netdev_change_mtu

xpnet:
- set min/max_mtu
- remove xpnet_dev_change_mtu

hippi:
- set min/max_mtu
- remove hippi_change_mtu

batman-adv:
- set max_mtu
- remove batadv_interface_change_mtu
- initialization is a little async, not 100% certain that max_mtu is set
  in the optimal place, don't have hardware to test with

rionet:
- set min/max_mtu
- remove rionet_change_mtu

slip:
- set min/max_mtu
- streamline sl_change_mtu

um/net_kern:
- remove pointless ndo_change_mtu

hsi/clients/ssi_protocol:
- use core MTU range checking
- remove now redundant ssip_pn_set_mtu

ipoib:
- set a default max MTU value
- Note: ipoib's actual max MTU can vary, depending on if the device is in
  connected mode or not, so we'll just set the max_mtu value to the max
  possible, and let the ndo_change_mtu function continue to validate any new
  MTU change requests with checks for CM or not. Note that ipoib has no
  min_mtu set, and thus, the network core's mtu > 0 check is the only lower
  bounds here.

mptlan:
- use net core MTU range checking
- remove now redundant mpt_lan_change_mtu

fddi:
- min_mtu = 21, max_mtu = 4470
- remove now redundant fddi_change_mtu (including export)

fjes:
- min_mtu = 8192, max_mtu = 65536
- The max_mtu value is actually one over IP_MAX_MTU here, but the idea is to
  get past the core net MTU range checks so fjes_change_mtu can validate a
  new MTU against what it supports (see fjes_support_mtu in fjes_hw.c)

hsr:
- min_mtu = 0 (calls ether_setup, max_mtu is 1500)

f_phonet:
- min_mtu = 6, max_mtu = 65541

u_ether:
- min_mtu = 14, max_mtu = 15412

phonet/pep-gprs:
- min_mtu = 576, max_mtu = 65530
- remove redundant gprs_set_mtu

CC: netdev@vger.kernel.org
CC: linux-rdma@vger.kernel.org
CC: Stefan Richter <stefanr@s5r6.in-berlin.de>
CC: Faisal Latif <faisal.latif@intel.com>
CC: linux-rdma@vger.kernel.org
CC: Cliff Whickman <cpw@sgi.com>
CC: Robin Holt <robinmholt@gmail.com>
CC: Jes Sorensen <jes@trained-monkey.org>
CC: Marek Lindner <mareklindner@neomailbox.ch>
CC: Simon Wunderlich <sw@simonwunderlich.de>
CC: Antonio Quartulli <a@unstable.cc>
CC: Sathya Prakash <sathya.prakash@broadcom.com>
CC: Chaitra P B <chaitra.basappa@broadcom.com>
CC: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
CC: MPT-FusionLinux.pdl@broadcom.com
CC: Sebastian Reichel <sre@kernel.org>
CC: Felipe Balbi <balbi@kernel.org>
CC: Arvid Brodin <arvid.brodin@alten.se>
CC: Remi Denis-Courmont <courmisch@gmail.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-20 14:51:10 -04:00
Wei Yongjun
c08b3f9a27 scsi: fusion: Fix error return code in mptfc_probe()
Fix to return error code -ENOMEM from the workqueue alloc error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-14 14:26:19 -04:00
Bhaktipriya Shridhar
b2990536f4 scsi: mpt: Remove deprecated create_singlethread_workqueue
The workqueues "ioc->reset_work_q" and "ioc->fw_event_q" queue a single
work item &ioc->fault_reset_work and &fw_event->work, respectively and
hence don't require ordering. Hence, they have been converted to use
alloc_workqueue().

The WQ_MEM_RECLAIM flag has been set to ensure forward progress under
memory pressure since the workqueue belongs to a storage driver which is
being used on a memory reclaim path.

Since there are fixed number of work items, explicit concurrency limit
is unnecessary here.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-02 06:13:57 -04:00
Bhaktipriya Shridhar
77d4f08024 scsi: mptfc: Remove deprecated create_singlethread_workqueue
The workqueue "fc_rescan_work_q" queues multiple work items viz
&ioc->fc_rescan_work, &ioc->fc_lsc_work, &ioc->fc_setup_reset_work,
which require strict execution ordering.  Hence, an ordered dedicated
workqueue has been used.

WQ_MEM_RECLAIM has been set since the workqueue is belongs to a storage
driver which is being used on a memory reclaim path and hence, requires
forward progress under memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-02 06:12:01 -04:00
Linus Torvalds
675e0655c1 SCSI misc on 20160517
This patch includes the usual quota of driver updates (bnx2fc, mp3sas,
 hpsa, ncr5380, lpfc, hisi_sas, snic, aacraid, megaraid_sas) there's
 also a multiqueue update for scsi_debug, assorted bug fixes and a few
 other minor updates (refactor of scsi_sg_pools into generic code, alua
 and VPD updates, and struct timeval conversions).
 
 Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "First round of SCSI updates for the 4.6+ merge window.

  This batch includes the usual quota of driver updates (bnx2fc, mp3sas,
  hpsa, ncr5380, lpfc, hisi_sas, snic, aacraid, megaraid_sas).  There's
  also a multiqueue update for scsi_debug, assorted bug fixes and a few
  other minor updates (refactor of scsi_sg_pools into generic code, alua
  and VPD updates, and struct timeval conversions)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (138 commits)
  mpt3sas: Used "synchronize_irq()"API to synchronize timed-out IO & TMs
  mpt3sas: Set maximum transfer length per IO to 4MB for VDs
  mpt3sas: Updating mpt3sas driver version to 13.100.00.00
  mpt3sas: Fix initial Reference tag field for 4K PI drives.
  mpt3sas: Handle active cable exception event
  mpt3sas: Update MPI header to 2.00.42
  Revert "lpfc: Delete unnecessary checks before the function call mempool_destroy"
  eata_pio: missing break statement
  hpsa: Fix type ZBC conditional checks
  scsi_lib: Decode T10 vendor IDs
  scsi_dh_alua: do not fail for unknown VPD identification
  scsi_debug: use locally assigned naa
  scsi_debug: uuid for lu name
  scsi_debug: vpd and mode page work
  scsi_debug: add multiple queue support
  bfa: fix bfa_fcb_itnim_alloc() error handling
  megaraid_sas: Downgrade two success messages to info
  cxlflash: Fix to resolve dead-lock during EEH recovery
  scsi_debug: rework resp_report_luns
  scsi_debug: use pdt constants
  ...
2016-05-18 16:38:59 -07:00
Florian Westphal
860e9538a9 treewide: replace dev->trans_start update with helper
Replace all trans_start updates with netif_trans_update helper.
change was done via spatch:

struct net_device *d;
@@
- d->trans_start = jiffies
+ netif_trans_update(d)

Compile tested only.

Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: linux-xtensa@linux-xtensa.org
Cc: linux1394-devel@lists.sourceforge.net
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: MPT-FusionLinux.pdl@broadcom.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-can@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-hams@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Cc: b.a.t.m.a.n@lists.open-mesh.org
Cc: linux-bluetooth@vger.kernel.org
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04 14:16:49 -04:00
Alexey Khoroshilov
1354379b13 mptsas: fix checks for dma mapping errors
mptsas_smp_handler() checks for dma mapping errors by comparison
returned address with zero, while pci_dma_mapping_error() should be
used.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-29 19:01:34 -04:00
Hannes Reinecke
1d64508810 scsi: disable automatic target scan
On larger installations it is useful to disable automatic LUN scanning,
and only add the required LUNs via udev rules.  This can speed up bootup
dramatically.

This patch introduces a new scan module parameter value 'manual', which
works like 'none', but can be overridden by setting the 'rescan' value
from scsi_scan_target to 'SCSI_SCAN_MANUAL'.  And it updates all
relevant callers to set the 'rescan' value to 'SCSI_SCAN_MANUAL' if
invoked via the 'scan' option in sysfs.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-11 16:57:09 -04:00
Ewan D. Milne
e8c61ecc1b mptbase: fixup error handling paths in mpt_attach()
mpt_attach() was not checking for the failure to create fw_event_q.
Also, iounmap() was not being called in all error cases after ioremap()
had been called by mpt_mapresources().

Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Reported-by: Insu Yun <wuninsu@gmail.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23 21:27:02 -05:00
Arnd Bergmann
28558f5af5 mptfusion: hide unused seq_mpt_print_ioc_summary function
The seq_mpt_print_ioc_summary function is used for the
/proc/mpt/iocN/summary implementation and never gets called when
CONFIG_PROC_FS is disabled:

drivers/message/fusion/mptbase.c:6851:13: warning: 'seq_mpt_print_ioc_summary' defined but not used [-Wunused-function]
 static void seq_mpt_print_ioc_summary(MPT_ADAPTER *ioc, struct seq_file *m, int showlan)

This adds an #ifdef to hide the function definition in that case and
avoid the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23 21:27:02 -05:00
James Bottomley
febdfbd213 SCSI queue for 4.4.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Merge tag '4.4-scsi-mkp' into misc

SCSI queue for 4.4.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-12 07:06:18 -05:00
Dan Carpenter
491212014e mptfusion: don't allow negative bytes in kbuf_alloc_2_sgl()
There is a static checker warning here because "bytes" is controlled by
the user and we cap the upper bound with min() but allow negatives.
Negative bytes will result in some nasty warning messages but are not
super harmful.  Anyway, no one needs negative bytes so let's just check
for it and return NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-11 20:58:06 -05:00
Christoph Hellwig
64d513ac31 scsi: use host wide tags by default
This patch changes the !blk-mq path to the same defaults as the blk-mq
I/O path by always enabling block tagging, and always using host wide
tags.  We've had blk-mq available for a few releases so bugs with
this mode should have been ironed out, and this ensures we get better
coverage of over tagging setup over different configs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09 17:11:57 -08:00
Dan Carpenter
e819cdb198 mptfusion: prevent some memory corruption
These are signed values the come from the user, we put a cap on the
upper bounds but not on the lower bounds.

We use "karg.dataSgeOffset" to calculate "sz".  We verify "sz" and
proceed as if that means that "karg.dataSgeOffset" is correct but this
fails to consider that the "sz" calculations can have integer overflows.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 07:11:45 -07:00
Luis R. Rodriguez
8cd1943bf0 fusion: remove dead MTRR code
If and when this gets enabled the driver could should split
up IO memory space properly and that is quite a bit of work.
Just remove the uncommented dead MTRR code then.

There are a few motivations for this:

a) Take advantage of PAT when available

b) Help bury MTRR code away, MTRR is architecture specific and on
   x86 its replaced by PAT

c) Help with the goal of eventually using _PAGE_CACHE_UC over
   _PAGE_CACHE_UC_MINUS on x86 on ioremap_nocache() (see commit
   de33c442e titled "x86 PAT: fix performance drop for glx,
   use UC minus for ioremap(), ioremap_nocache() and
   pci_mmap_page_range()")

Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Acked-by: Sreekanth Reddy <ureekanth.reddy@avagotech.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13 08:44:14 -07:00
Tomas Henzl
2865c07325 mptsas: fix depth param in scsi_track_queue_full
A user of scsi_track_queue_full should pass to the function a constant value
untill the queue-depth changes, otherwise the internal logic in
scsi_track_queue_full rejects the change.  Other users of this function use a
'sdev->queue_depth - 1' as depth parameter, let's do the same.

Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: "Sreekanth Reddy" <Sreekanth.reddy@avagotech.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13 08:40:33 -07:00
Alan Cox
2cbf7fe2d5 i2o: move to staging
The I2O layer deals with a technology that to say the least didn't catch on
in the market.

The only relevant products are some of the AMI MegaRAID - which supported I2O
and its native mode (The native mode is faster and runs on Linux), an
obscure crypto ethernet card that's now so many years out of date nobody
would use it, the old DPT controllers, which speak their own dialect and
have their own driver - and ermm.. thats about it.

We also know the code isn't in good shape as recently a patch was proposed
and queried as buggy, which in turn showed the existing code was broken
already by prior "clean up" and nobody had noticed that either.

It's coding style robot code nothing more. Like some forgotten corridor
cleaned relentlessly by a lost Roomba but where no user has trodden in years.

Move it to staging and then to /dev/null.

The headers remain as they are shared with dpt_i2o.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-03 15:58:39 -08:00
Christoph Hellwig
db5ed4dfd5 scsi: drop reason argument from ->change_queue_depth
Drop the now unused reason argument from the ->change_queue_depth method.
Also add a return value to scsi_adjust_queue_depth, and rename it to
scsi_change_queue_depth now that it can be used as the default
->change_queue_depth implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-24 14:45:27 +01:00
Christoph Hellwig
c8b09f6fb6 scsi: don't set tagging state from scsi_adjust_queue_depth
Remove the tagged argument from scsi_adjust_queue_depth, and just let it
handle the queue depth.  For most drivers those two are fairly separate,
given that most modern drivers don't care about the SCSI "tagged" status
of a command at all, and many old drivers allow queuing of multiple
untagged commands in the driver.

Instead we start out with the ->simple_tags flag set before calling
->slave_configure, which is how all drivers actually looking at
->simple_tags except for one worke anyway.  The one other case looks
broken, but I've kept the behavior as-is for now.

Except for that we only change ->simple_tags from the ->change_queue_type,
and when rejecting a tag message in a single driver, so keeping this
churn out of scsi_adjust_queue_depth is a clear win.

Now that the usage of scsi_adjust_queue_depth is more obvious we can
also remove all the trivial instances in ->slave_alloc or ->slave_configure
that just set it to the cmd_per_lun default.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
2014-11-12 11:19:43 +01:00
Christoph Hellwig
2ecb204d07 scsi: always assign block layer tags if enabled
Allow a driver to ask for block layer tags by setting .use_blk_tags in the
host template, in which case it will always see a valid value in
request->tag, similar to the behavior when using blk-mq.  This means even
SCSI "untagged" commands will now have a tag, which is especially useful
when using a host-wide tag map.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-12 11:19:43 +01:00
Christoph Hellwig
8f88dc4192 mptfusion: don't change queue type in ->change_queue_depth
This function shouldn't change the queue type, just the depth.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-12 11:19:42 +01:00
Christoph Hellwig
609aa22f3b scsi: remove ordered_tags scsi_device field
Remove the ordered_tags field, we haven't been issuing ordered tags based
on it since the big barrier rework in 2010.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
2014-11-12 11:19:40 +01:00
Linus Torvalds
9a50aaefc1 SCSI for-linus on 20141007
This patch set consists of the usual driver updates (megaraid_sas, arcmsr,
 be2iscsi, lpfc, mpt2sas, mpt3sas, qla2xxx, ufs) plus several assorted fixes
 and miscellaneous updates (including the pci_msix_enable_range() changes that
 have been pending for a while).
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This patch set consists of the usual driver updates (megaraid_sas,
  arcmsr, be2iscsi, lpfc, mpt2sas, mpt3sas, qla2xxx, ufs) plus several
  assorted fixes and miscellaneous updates (including the
  pci_msix_enable_range() changes that have been pending for a while)"

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (202 commits)
  scsi: add a CONFIG_SCSI_MQ_DEFAULT option
  ufs: definitions for phy interface
  ufs: tune bkops while power managment events
  ufs: Add support for clock scaling using devfreq framework
  ufs: Add freq-table-hz property for UFS device
  ufs: Add support for clock gating
  ufs: refactor configuring power mode
  ufs: add UFS power management support
  ufs: introduce well known logical unit in ufs
  ufs: manually add well known logical units
  ufs: Active Power Mode - configuring bActiveICCLevel
  ufs: improve init sequence
  ufs: refactor query descriptor API support
  ufs: add voting support for host controller power
  ufs: Add clock initialization support
  ufs: Add regulator enable support
  ufs: Allow vendor specific initialization
  scsi: don't add scsi_device if its already visible
  scsi: fix the type for well known LUs
  scsi: fix comment in struct Scsi_Host definition
  ...
2014-10-07 21:29:18 -04:00
Chris J Arges
4089b71cc8 mptfusion: enable no_write_same for vmware scsi disks
When using a virtual SCSI disk in a VMWare VM if blkdev_issue_zeroout is used
data can be improperly zeroed out using the mptfusion driver. This patch
disables write_same for this driver and the vmware subsystem_vendor which
ensures that manual zeroing out is used instead.

Cc: stable@vger.kernel.org
BugLink: http://bugs.launchpad.net/bugs/1371591
Reported-by: Bruce Lucas <bruce.lucas@mongodb.com>
Tested-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-25 14:24:48 +02:00
Randy Dunlap
6a38792ca8 scsi: use 'depends' instead of 'select' for SCSI_FC_ATTRS
There are other kconfig symbols which use SCSI_FC_ATTRS.
In order to maintain sanity and prevent kconfig warnings, change
all of these from using 'select' to using 'depends on' so that
proper symbol dependencies will be honored and circular depends
problems will be avoided.
This fixes kconfig warnings and build errors:

warning: (LIBFC && SCSI_IBMVFC && SCSI_QLA_FC && SCSI_LPFC && ZFCP && SCSI_BFA_FC && SCSI_CHELSIO_FCOE && FUSION_FC) selects SCSI_FC_ATTRS which has unmet direct dependencies (SCSI && NET)
drivers/scsi/scsi_transport_fc.c: In function 'fc_host_post_event':
drivers/scsi/scsi_transport_fc.c:543:7: error: 'scsi_nl_sock' undeclared (first use in this function)
drivers/scsi/scsi_transport_fc.c: In function 'fc_host_post_vendor_event':
drivers/scsi/scsi_transport_fc.c:611:7: error: 'scsi_nl_sock' undeclared (first use in this function)

Reported-by: Fengguang Wu <fengguang.wu@intel.com> [0-day test robot]
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-16 16:55:55 -04:00
Randy Dunlap
5d46ad7d88 fusion: fix excess parameter kernel-doc warning
Fix kernel-doc excess parameter warning:

Warning(..//drivers/message/fusion/mptbase.c:1411): Excess function parameter 'prod_name' description in 'mpt_get_product_name'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:49 -07:00
Rasmus Villemoes
f6e495a2b3 mptfusion: simplify rounding
Rounding up to a multiple of 4 should be done using the ALIGN
macro. As a bonus, this also makes the generated code smaller.

In GetIocFacts(), sz is assigned to a few lines below without being
read in the meantime, so it is ok that it doesn't end up with the same
value as facts->FWImageSize.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Joe Lawrence <joe.lawrence@stratus.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:43 -07:00
Joe Lawrence
9f21316fc2 mptfusion: tweak null pointer checks
Fixes the following smatch warnings:

  drivers/message/fusion/mptbase.c:652 mptbase_reply() warn: variable
    dereferenced before check 'reply' (see line 639)

      [JL: No-brainer, the enclosing switch statement dereferences
       reply, so we can't get here unless reply is valid.]

  drivers/message/fusion/mptsas.c:1255 mptsas_taskmgmt_complete() error:
    we previously assumed 'pScsiTmReply' could be null (see line 1227)

      [HCH: Reading the code in mptsas_taskmgmt_complete it's pretty
       obvious that it can't do anything useful if mr/pScsiTmReply are
       NULL, so I suspect it would be best to just return at the
       beginning of the function.

       I'd love to understand if it actually could ever be zero, which I
       doubt.  Maybe the LSI people can shed some light on that?]

  drivers/message/fusion/mptsas.c:3888 mptsas_not_responding_devices()
    error: we previously assumed 'port_info->phy_info' could be null
    (see line 3875)

      [HCH: It's pretty obvious from reading mptsas_sas_io_unit_pg0 that
       we never register a port_info with a NULL phy_info in the lists,
       so all NULL checks on it could be deleted.]

  drivers/message/fusion/mptscsih.c:1284 mptscsih_info() error:
    we previously assumed 'h' could be null (see line 1274)

      [HCH: shost_priv can't return NULL, so the if (h) should be
       removed.]

  drivers/message/fusion/mptscsih.c:1388 mptscsih_qcmd() error: we
    previously assumed 'vdevice' could be null (see line 1373)

      [HCH: vdevice can't ever be NULL here, it's allocated in
       ->slave_alloc and thus guaranteed to be around when
       ->queuecommand is called.]

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:16:58 -04:00
Joe Lawrence
3269619874 mptfusion: combine fw_event_work and its event_data
Tack the firmware reply event_data payload to the end of its
corresponding struct fw_event_work allocation.  Rework fw_event_work
allocation calculations to include the event_data size where
appropriate.

This clarifies the code a bit and avoids the following smatch warnings:

  drivers/message/fusion/mptsas.c:1003 mptsas_queue_device_delete()
    error: memcpy() 'fw_event->event_data' too small (29 vs 36)

  drivers/message/fusion/mptsas.c:1017 mptsas_queue_rescan() error: not
    allocating enough data 168 vs 160

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:16:58 -04:00
Joe Lawrence
c9834c70ef mptfusion: make adapter prod_name[] a pointer
The struct _MPT_ADAPTER doesn't need a full copy of the product string,
so prod_name can point to the string literal storage that the driver
already provides.

Avoids the following smatch warning:

  drivers/message/fusion/mptbase.c:2858 MptDisplayIocCapabilities()
    warn: this array is probably non-NULL. 'ioc->prod_name'

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:16:58 -04:00
Joe Lawrence
3e67c459d0 mptfusion: use memdup_user
Let memdup_user handle the kmalloc, copy_from_user and error checking
kfree code.

Spotted by the following smatch (false positive) warning:

  drivers/message/fusion/mptctl.c:1369 mptctl_getiocinfo() warn:
    possible info leak 'karg'

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:16:57 -04:00
Joe Lawrence
5074b1b60e mptfusion: remove redundant kfree checks
Fixes the following smatch warnings:

  drivers/message/fusion/mptfc.c:529 mptfc_target_destroy() info:
    redundant null check on starget->hostdata calling kfree()

  drivers/message/fusion/mptspi.c:465 mptspi_target_destroy() info:
    redundant null check on starget->hostdata calling kfree()

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:16:57 -04:00
Joe Lawrence
5767d25f0d mptfusion: mark file-private functions as static
Fixes the following sparse warnings:

  drivers/message/fusion/mptbase.c:7011:1: warning: symbol
    'mpt_SoftResetHandler' was not declared. Should it be static?

  drivers/message/fusion/mptsas.c:1578:23: warning: symbol
    'mptsas_refreshing_device_handles' was not declared. Should it be
    static?

  drivers/message/fusion/mptsas.c:3653:24: warning: symbol
    'mptsas_expander_add' was not declared. Should it be static?

  drivers/message/fusion/mptsas.c:5327:1: warning: symbol
    'mptsas_shutdown' was not declared. Should it be static?

  drivers/message/fusion/mptspi.c:624:1: warning: symbol
    'mptscsih_quiesce_raid' was not declared. Should it be static?

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:16:57 -04:00
Christoph Hellwig
71e75c97f9 scsi: convert device_busy to atomic_t
Avoid taking the queue_lock to check the per-device queue limit.  Instead
we do an atomic_inc_return early on to grab our slot in the queue,
and if necessary decrement it after finishing all checks.

Unlike the host and target busy counters this doesn't allow us to avoid the
queue_lock in the request_fn due to the way the interface works, but it'll
allow us to prepare for using the blk-mq code, which doesn't use the
queue_lock at all, and it at least avoids a queue_lock round trip in
scsi_device_unbusy, which is still important given how busy the queue_lock
is.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Webb Scales <webbnh@hp.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Tested-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Robert Elliott <elliott@hp.com>
2014-07-25 07:43:45 -04:00
Hannes Reinecke
1abf635d2f scsi: use 64-bit value for 'max_luns'
Now that we're using 64-bit LUNs internally we need to increase
the size of max_luns to 64 bits, too.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-17 22:07:38 +02:00
Hannes Reinecke
9cb78c16f5 scsi: use 64-bit LUNs
The SCSI standard defines 64-bit values for LUNs, and large arrays
employing large or hierarchical LUN numbers become more and more
common.

So update the linux SCSI stack to use 64-bit LUN numbers.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-17 22:07:37 +02:00
Tomas Henzl
73d02c200b mptfusion: fix msgContext in mptctl_hp_hostinfo
Hi,

without this patch the istwiRWRequest->MsgContext is always set to zero,
this patch saves the MsgContext in a msgcontext variable and then restores
the value.
Thanks to  David Jeffery who found the issue and did the analysis.

Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Desai, Kashyap <Kashyap.Desai@lsi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-28 18:14:16 +02:00
Matthew Wilcox
a48ac9e5d4 fusion: Remove use of DEF_SCSI_QCMD
Removing the host_lock from the I/O submission path gives a huge
scalability improvement.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org>
Reviewed-by: Praveen Krishnamoorthy <Praveen.krishnamoorthy@lsi.com>
Acked-by: Sreekanth Reddy <Sreekanth.reddy@lsi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-28 18:13:25 +02:00
Matthew Wilcox
ecc3bc9825 fusion: Add free msg frames to the head, not tail of list
Reusing a msg frame quickly means it's still cache-hot.  This yields
a small but noticable performance improvement in a well-known database
benchmark.  This improvement is already present in the mpt3sas driver.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org>
Reviewed-by: Praveen Krishnamoorthy <Praveen.krishnamoorthy@lsi.com>
Acked-by: Sreekanth Reddy <Sreekanth.reddy@lsi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-28 18:13:24 +02:00
Linus Torvalds
4b1779c2cf PCI changes for the v3.15 merge window:
Enumeration
     - Increment max correctly in pci_scan_bridge() (Andreas Noever)
     - Clarify the "scan anyway" comment in pci_scan_bridge() (Andreas Noever)
     - Assign CardBus bus number only during the second pass (Andreas Noever)
     - Use request_resource_conflict() instead of insert_ for bus numbers (Andreas Noever)
     - Make sure bus number resources stay within their parents bounds (Andreas Noever)
     - Remove pci_fixup_parent_subordinate_busnr() (Andreas Noever)
     - Check for child busses which use more bus numbers than allocated (Andreas Noever)
     - Don't scan random busses in pci_scan_bridge() (Andreas Noever)
     - x86: Drop pcibios_scan_root() check for bus already scanned (Bjorn Helgaas)
     - x86: Use pcibios_scan_root() instead of pci_scan_bus_with_sysdata() (Bjorn Helgaas)
     - x86: Use pcibios_scan_root() instead of pci_scan_bus_on_node() (Bjorn Helgaas)
     - x86: Merge pci_scan_bus_on_node() into pcibios_scan_root() (Bjorn Helgaas)
     - x86: Drop return value of pcibios_scan_root() (Bjorn Helgaas)
 
   NUMA
     - x86: Add x86_pci_root_bus_node() to look up NUMA node from PCI bus (Bjorn Helgaas)
     - x86: Use x86_pci_root_bus_node() instead of get_mp_bus_to_node() (Bjorn Helgaas)
     - x86: Remove mp_bus_to_node[], set_mp_bus_to_node(), get_mp_bus_to_node() (Bjorn Helgaas)
     - x86: Use NUMA_NO_NODE, not -1, for unknown node (Bjorn Helgaas)
     - x86: Remove acpi_get_pxm() usage (Bjorn Helgaas)
     - ia64: Use NUMA_NO_NODE, not MAX_NUMNODES, for unknown node (Bjorn Helgaas)
     - ia64: Remove acpi_get_pxm() usage (Bjorn Helgaas)
     - ACPI: Fix acpi_get_node() prototype (Bjorn Helgaas)
 
   Resource management
     - i2o: Fix and refactor PCI space allocation (Bjorn Helgaas)
     - Add resource_contains() (Bjorn Helgaas)
     - Add %pR support for IORESOURCE_UNSET (Bjorn Helgaas)
     - Mark resources as IORESOURCE_UNSET if we can't assign them (Bjorn Helgaas)
     - Don't clear IORESOURCE_UNSET when updating BAR (Bjorn Helgaas)
     - Check IORESOURCE_UNSET before updating BAR (Bjorn Helgaas)
     - Don't try to claim IORESOURCE_UNSET resources (Bjorn Helgaas)
     - Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit (Bjorn Helgaas)
     - Don't enable decoding if BAR hasn't been assigned an address (Bjorn Helgaas)
     - Add "weak" generic pcibios_enable_device() implementation (Bjorn Helgaas)
     - alpha, microblaze, sh, sparc, tile: Use default pcibios_enable_device() (Bjorn Helgaas)
     - s390: Use generic pci_enable_resources() (Bjorn Helgaas)
     - Don't check resource_size() in pci_bus_alloc_resource() (Bjorn Helgaas)
     - Set type in __request_region() (Bjorn Helgaas)
     - Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region() (Bjorn Helgaas)
     - Change pci_bus_alloc_resource() type_mask to unsigned long (Bjorn Helgaas)
     - Log IDE resource quirk in dmesg (Bjorn Helgaas)
     - Revert "[PATCH] Insert GART region into resource map" (Bjorn Helgaas)
 
   PCI device hotplug
     - Make check_link_active() non-static (Rajat Jain)
     - Use link change notifications for hot-plug and removal (Rajat Jain)
     - Enable link state change notifications (Rajat Jain)
     - Don't disable the link permanently during removal (Rajat Jain)
     - Don't check adapter or latch status while disabling (Rajat Jain)
     - Disable link notification across slot reset (Rajat Jain)
     - Ensure very fast hotplug events are also processed (Rajat Jain)
     - Add hotplug_lock to serialize hotplug events (Rajat Jain)
     - Remove a non-existent card, regardless of "surprise" capability (Rajat Jain)
     - Don't turn slot off when hot-added device already exists (Yijing Wang)
 
   MSI
     - Keep pci_enable_msi() documentation (Alexander Gordeev)
     - ahci: Fix broken single MSI fallback (Alexander Gordeev)
     - ahci, vfio: Use pci_enable_msi_range() (Alexander Gordeev)
     - Check kmalloc() return value, fix leak of name (Greg Kroah-Hartman)
     - Fix leak of msi_attrs (Greg Kroah-Hartman)
     - Fix pci_msix_vec_count() htmldocs failure (Masanari Iida)
 
   Virtualization
     - Device-specific ACS support (Alex Williamson)
 
   Freescale i.MX6
     - Wait for retraining (Marek Vasut)
 
   Marvell MVEBU
     - Use Device ID and revision from underlying endpoint (Andrew Lunn)
     - Fix incorrect size for PCI aperture resources (Jason Gunthorpe)
     - Call request_resource() on the apertures (Jason Gunthorpe)
     - Fix potential issue in range parsing (Jean-Jacques Hiblot)
 
   Renesas R-Car
     - Check platform_get_irq() return code (Ben Dooks)
     - Add error interrupt handling (Ben Dooks)
     - Fix bridge logic configuration accesses (Ben Dooks)
     - Register each instance independently (Magnus Damm)
     - Break out window size handling (Magnus Damm)
     - Make the Kconfig dependencies more generic (Magnus Damm)
 
   Synopsys DesignWare
     - Fix RC BAR to be single 64-bit non-prefetchable memory (Mohit Kumar)
 
   Miscellaneous
     - Remove unused SR-IOV VF Migration support (Bjorn Helgaas)
     - Enable INTx if BIOS left them disabled (Bjorn Helgaas)
     - Fix hex vs decimal typo in cpqhpc_probe() (Dan Carpenter)
     - Clean up par-arch object file list (Liviu Dudau)
     - Set IORESOURCE_ROM_SHADOW only for the default VGA device (Sander Eikelenboom)
     - ACPI, ARM, drm, powerpc, pcmcia, PCI: Use list_for_each_entry() for bus traversal (Yijing Wang)
     - Fix pci_bus_b() build failure (Paul Gortmaker)
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Merge tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI changes from Bjorn Helgaas:
 "Enumeration
   - Increment max correctly in pci_scan_bridge() (Andreas Noever)
   - Clarify the "scan anyway" comment in pci_scan_bridge() (Andreas Noever)
   - Assign CardBus bus number only during the second pass (Andreas Noever)
   - Use request_resource_conflict() instead of insert_ for bus numbers (Andreas Noever)
   - Make sure bus number resources stay within their parents bounds (Andreas Noever)
   - Remove pci_fixup_parent_subordinate_busnr() (Andreas Noever)
   - Check for child busses which use more bus numbers than allocated (Andreas Noever)
   - Don't scan random busses in pci_scan_bridge() (Andreas Noever)
   - x86: Drop pcibios_scan_root() check for bus already scanned (Bjorn Helgaas)
   - x86: Use pcibios_scan_root() instead of pci_scan_bus_with_sysdata() (Bjorn Helgaas)
   - x86: Use pcibios_scan_root() instead of pci_scan_bus_on_node() (Bjorn Helgaas)
   - x86: Merge pci_scan_bus_on_node() into pcibios_scan_root() (Bjorn Helgaas)
   - x86: Drop return value of pcibios_scan_root() (Bjorn Helgaas)

  NUMA
   - x86: Add x86_pci_root_bus_node() to look up NUMA node from PCI bus (Bjorn Helgaas)
   - x86: Use x86_pci_root_bus_node() instead of get_mp_bus_to_node() (Bjorn Helgaas)
   - x86: Remove mp_bus_to_node[], set_mp_bus_to_node(), get_mp_bus_to_node() (Bjorn Helgaas)
   - x86: Use NUMA_NO_NODE, not -1, for unknown node (Bjorn Helgaas)
   - x86: Remove acpi_get_pxm() usage (Bjorn Helgaas)
   - ia64: Use NUMA_NO_NODE, not MAX_NUMNODES, for unknown node (Bjorn Helgaas)
   - ia64: Remove acpi_get_pxm() usage (Bjorn Helgaas)
   - ACPI: Fix acpi_get_node() prototype (Bjorn Helgaas)

  Resource management
   - i2o: Fix and refactor PCI space allocation (Bjorn Helgaas)
   - Add resource_contains() (Bjorn Helgaas)
   - Add %pR support for IORESOURCE_UNSET (Bjorn Helgaas)
   - Mark resources as IORESOURCE_UNSET if we can't assign them (Bjorn Helgaas)
   - Don't clear IORESOURCE_UNSET when updating BAR (Bjorn Helgaas)
   - Check IORESOURCE_UNSET before updating BAR (Bjorn Helgaas)
   - Don't try to claim IORESOURCE_UNSET resources (Bjorn Helgaas)
   - Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit (Bjorn Helgaas)
   - Don't enable decoding if BAR hasn't been assigned an address (Bjorn Helgaas)
   - Add "weak" generic pcibios_enable_device() implementation (Bjorn Helgaas)
   - alpha, microblaze, sh, sparc, tile: Use default pcibios_enable_device() (Bjorn Helgaas)
   - s390: Use generic pci_enable_resources() (Bjorn Helgaas)
   - Don't check resource_size() in pci_bus_alloc_resource() (Bjorn Helgaas)
   - Set type in __request_region() (Bjorn Helgaas)
   - Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region() (Bjorn Helgaas)
   - Change pci_bus_alloc_resource() type_mask to unsigned long (Bjorn Helgaas)
   - Log IDE resource quirk in dmesg (Bjorn Helgaas)
   - Revert "[PATCH] Insert GART region into resource map" (Bjorn Helgaas)

  PCI device hotplug
   - Make check_link_active() non-static (Rajat Jain)
   - Use link change notifications for hot-plug and removal (Rajat Jain)
   - Enable link state change notifications (Rajat Jain)
   - Don't disable the link permanently during removal (Rajat Jain)
   - Don't check adapter or latch status while disabling (Rajat Jain)
   - Disable link notification across slot reset (Rajat Jain)
   - Ensure very fast hotplug events are also processed (Rajat Jain)
   - Add hotplug_lock to serialize hotplug events (Rajat Jain)
   - Remove a non-existent card, regardless of "surprise" capability (Rajat Jain)
   - Don't turn slot off when hot-added device already exists (Yijing Wang)

  MSI
   - Keep pci_enable_msi() documentation (Alexander Gordeev)
   - ahci: Fix broken single MSI fallback (Alexander Gordeev)
   - ahci, vfio: Use pci_enable_msi_range() (Alexander Gordeev)
   - Check kmalloc() return value, fix leak of name (Greg Kroah-Hartman)
   - Fix leak of msi_attrs (Greg Kroah-Hartman)
   - Fix pci_msix_vec_count() htmldocs failure (Masanari Iida)

  Virtualization
   - Device-specific ACS support (Alex Williamson)

  Freescale i.MX6
   - Wait for retraining (Marek Vasut)

  Marvell MVEBU
   - Use Device ID and revision from underlying endpoint (Andrew Lunn)
   - Fix incorrect size for PCI aperture resources (Jason Gunthorpe)
   - Call request_resource() on the apertures (Jason Gunthorpe)
   - Fix potential issue in range parsing (Jean-Jacques Hiblot)

  Renesas R-Car
   - Check platform_get_irq() return code (Ben Dooks)
   - Add error interrupt handling (Ben Dooks)
   - Fix bridge logic configuration accesses (Ben Dooks)
   - Register each instance independently (Magnus Damm)
   - Break out window size handling (Magnus Damm)
   - Make the Kconfig dependencies more generic (Magnus Damm)

  Synopsys DesignWare
   - Fix RC BAR to be single 64-bit non-prefetchable memory (Mohit Kumar)

  Miscellaneous
   - Remove unused SR-IOV VF Migration support (Bjorn Helgaas)
   - Enable INTx if BIOS left them disabled (Bjorn Helgaas)
   - Fix hex vs decimal typo in cpqhpc_probe() (Dan Carpenter)
   - Clean up par-arch object file list (Liviu Dudau)
   - Set IORESOURCE_ROM_SHADOW only for the default VGA device (Sander Eikelenboom)
   - ACPI, ARM, drm, powerpc, pcmcia, PCI: Use list_for_each_entry() for bus traversal (Yijing Wang)
   - Fix pci_bus_b() build failure (Paul Gortmaker)"

* tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (108 commits)
  Revert "[PATCH] Insert GART region into resource map"
  PCI: Log IDE resource quirk in dmesg
  PCI: Change pci_bus_alloc_resource() type_mask to unsigned long
  PCI: Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region()
  resources: Set type in __request_region()
  PCI: Don't check resource_size() in pci_bus_alloc_resource()
  s390/PCI: Use generic pci_enable_resources()
  tile PCI RC: Use default pcibios_enable_device()
  sparc/PCI: Use default pcibios_enable_device() (Leon only)
  sh/PCI: Use default pcibios_enable_device()
  microblaze/PCI: Use default pcibios_enable_device()
  alpha/PCI: Use default pcibios_enable_device()
  PCI: Add "weak" generic pcibios_enable_device() implementation
  PCI: Don't enable decoding if BAR hasn't been assigned an address
  PCI: Enable INTx in pci_reenable_device() only when MSI/MSI-X not enabled
  PCI: Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit
  PCI: Don't try to claim IORESOURCE_UNSET resources
  PCI: Check IORESOURCE_UNSET before updating BAR
  PCI: Don't clear IORESOURCE_UNSET when updating BAR
  PCI: Mark resources as IORESOURCE_UNSET if we can't assign them
  ...

Conflicts:
	arch/x86/include/asm/topology.h
	drivers/ata/ahci.c
2014-04-01 15:14:04 -07:00
Bjorn Helgaas
d2e074ccbf i2o: Use pci_bus_alloc_resource(), not allocate_resource() directly
Convert i2o_res_alloc() to use pci_bus_alloc_resource() rather than
pci_find_parent_resource() and allocate_resource().  We don't have a
resource to start with, so pci_find_parent_resource() can't do anything
useful: a bus may have several memory resources available, so there might
be several possible parents.  This is more likely on root buses because
host bridges may have any number of apertures.

I'm pretty sure this didn't work in the first place because it passed
size == min == max to allocate_resource().  The min and max parameters are
constraints on the *addresses* of the resource, not on its size, so I think
it was impossible for allocate_resource() to succeed.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-02-26 14:41:17 -07:00
Bjorn Helgaas
60f061e193 i2o: Refactor i2o_iop_systab_set() PCI space allocation
Refactor the PCI space allocation in i2o_iop_systab_set().  This might
improve readability slightly, but mainly it is to make the next patch
simpler.

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-02-26 11:56:09 -07:00
Bjorn Helgaas
5c513bd580 i2o: Fix I/O space alignment requirement
When i2o_iop_systab_set() allocates I/O port space, it specifies 1Mb
alignment required.  This seems unlikely, since most platforms have only
64Kb of I/O space total.  I think 4Kb is a more reasonable choice, since
that's the minimum alignment of a PCI-PCI bridge I/O window.

My guess is that this is a copy/paste error from the memory allocation
code, which specifies 1Mb alignment (which is the minimum alignment of a
PCI-PCI bridge memory window).

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-02-26 11:56:09 -07:00
Bjorn Helgaas
7ed37fc328 i2o: Fix I/O space allocation copy/paste error
When i2o_iop_systab_set() allocates I/O port space, it assigns the base of
the new I/O port region to sb->current_mem_base, not sb->current_io_base.
This looks like a copy/paste error, because we do use current_io_base, but
there's no other place that sets it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-02-26 11:56:09 -07:00
Alexey Khoroshilov
a3eb7fbb41 drivers/message/i2o/i2o_config.c: fix deadlock in compat_ioctl(I2OGETIOPS)
i2o_cfg_compat_ioctl(I2OGETIOPS) locks i2o_cfg_mutex and then calls
i2o_cfg_ioctl(I2OGETIOPS) that locks i2o_cfg_mutex as well.  A deadlock
is guaranteed.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-10 16:01:40 -08:00
Linus Torvalds
f568849eda Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block
Pull core block IO changes from Jens Axboe:
 "The major piece in here is the immutable bio_ve series from Kent, the
  rest is fairly minor.  It was supposed to go in last round, but
  various issues pushed it to this release instead.  The pull request
  contains:

   - Various smaller blk-mq fixes from different folks.  Nothing major
     here, just minor fixes and cleanups.

   - Fix for a memory leak in the error path in the block ioctl code
     from Christian Engelmayer.

   - Header export fix from CaiZhiyong.

   - Finally the immutable biovec changes from Kent Overstreet.  This
     enables some nice future work on making arbitrarily sized bios
     possible, and splitting more efficient.  Related fixes to immutable
     bio_vecs:

        - dm-cache immutable fixup from Mike Snitzer.
        - btrfs immutable fixup from Muthu Kumar.

  - bio-integrity fix from Nic Bellinger, which is also going to stable"

* 'for-3.14/core' of git://git.kernel.dk/linux-block: (44 commits)
  xtensa: fixup simdisk driver to work with immutable bio_vecs
  block/blk-mq-cpu.c: use hotcpu_notifier()
  blk-mq: for_each_* macro correctness
  block: Fix memory leak in rw_copy_check_uvector() handling
  bio-integrity: Fix bio_integrity_verify segment start bug
  block: remove unrelated header files and export symbol
  blk-mq: uses page->list incorrectly
  blk-mq: use __smp_call_function_single directly
  btrfs: fix missing increment of bi_remaining
  Revert "block: Warn and free bio if bi_end_io is not set"
  block: Warn and free bio if bi_end_io is not set
  blk-mq: fix initializing request's start time
  block: blk-mq: don't export blk_mq_free_queue()
  block: blk-mq: make blk_sync_queue support mq
  block: blk-mq: support draining mq queue
  dm cache: increment bi_remaining when bi_end_io is restored
  block: fixup for generic bio chaining
  block: Really silence spurious compiler warnings
  block: Silence spurious compiler warnings
  block: Kill bio_pair_split()
  ...
2014-01-30 11:19:05 -08:00
Rafael J. Wysocki
64cdb4181d MPT / PCI: Use pci_stop_and_remove_bus_device_locked()
Race conditions are theoretically possible between the MPT PCI device
removal and the generic PCI bus rescan and device removal that can be
triggered via sysfs.

To avoid those race conditions make the MPT PCI code use
pci_stop_and_remove_bus_device_locked().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-01-14 12:14:25 -07:00
Kent Overstreet
458b76ed2f block: Kill bio_segments()/bi_vcnt usage
When we start sharing biovecs, keeping bi_vcnt accurate for splits is
going to be error prone - and unnecessary, if we refactor some code.

So bio_segments() has to go - but most of the existing users just needed
to know if the bio had multiple segments, which is easier - add a
bio_multiple_segments() for them.

(Two of the current uses of bio_segments() are going to go away in a
couple patches, but the current implementation of bio_segments() is
unsafe as soon as we start doing driver conversions for immutable
biovecs - so implement a dumb version for bisectability, it'll go away
in a couple patches)

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Neil Brown <neilb@suse.de>
Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
2013-11-23 22:33:51 -08:00
Wei Yongjun
10992435b3 drivers/message/i2o/driver.c: add missing destroy_workqueue() on error in i2o_driver_register()
Add the missing destroy_workqueue() before return from
i2o_driver_register() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-13 12:09:26 +09:00
Greg Kroah-Hartman
ba6857b2d4 i2o: convert bus code to use dev_groups
The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the i2o bus code to use the
correct field.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-16 18:40:58 -07:00
Kees Cook
d8537548c9 drivers: avoid format strings in names passed to alloc_workqueue()
For the workqueue creation interfaces that do not expect format strings,
make sure they cannot accidently be parsed that way.  Additionally, clean
up calls made with a single parameter that would be handled as a format
string.  Many callers are passing potentially dynamic string content, so
use "%s" in those cases to avoid any potential accidents.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03 16:07:41 -07:00
Linus Torvalds
4de13d7aa8 Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block
Pull block core updates from Jens Axboe:

 - Major bit is Kents prep work for immutable bio vecs.

 - Stable candidate fix for a scheduling-while-atomic in the queue
   bypass operation.

 - Fix for the hang on exceeded rq->datalen 32-bit unsigned when merging
   discard bios.

 - Tejuns changes to convert the writeback thread pool to the generic
   workqueue mechanism.

 - Runtime PM framework, SCSI patches exists on top of these in James'
   tree.

 - A few random fixes.

* 'for-3.10/core' of git://git.kernel.dk/linux-block: (40 commits)
  relay: move remove_buf_file inside relay_close_buf
  partitions/efi.c: replace useless kzalloc's by kmalloc's
  fs/block_dev.c: fix iov_shorten() criteria in blkdev_aio_read()
  block: fix max discard sectors limit
  blkcg: fix "scheduling while atomic" in blk_queue_bypass_start
  Documentation: cfq-iosched: update documentation help for cfq tunables
  writeback: expose the bdi_wq workqueue
  writeback: replace custom worker pool implementation with unbound workqueue
  writeback: remove unused bdi_pending_list
  aoe: Fix unitialized var usage
  bio-integrity: Add explicit field for owner of bip_buf
  block: Add an explicit bio flag for bios that own their bvec
  block: Add bio_alloc_pages()
  block: Convert some code to bio_for_each_segment_all()
  block: Add bio_for_each_segment_all()
  bounce: Refactor __blk_queue_bounce to not use bi_io_vec
  raid1: use bio_copy_data()
  pktcdvd: Use bio_reset() in disabled code to kill bi_idx usage
  pktcdvd: use bio_copy_data()
  block: Add bio_copy_data()
  ...
2013-05-08 10:13:35 -07:00
Al Viro
db2a144bed block_device_operations->release() should return void
The value passed is 0 in all but "it can never happen" cases (and those
only in a couple of drivers) *and* it would've been lost on the way
out anyway, even if something tried to pass something meaningful.
Just don't bother.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-07 02:16:21 -04:00
Linus Torvalds
20b4fb4852 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS updates from Al Viro,

Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).

7kloc removed.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
  don't bother with deferred freeing of fdtables
  proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
  proc: Make the PROC_I() and PDE() macros internal to procfs
  proc: Supply a function to remove a proc entry by PDE
  take cgroup_open() and cpuset_open() to fs/proc/base.c
  ppc: Clean up scanlog
  ppc: Clean up rtas_flash driver somewhat
  hostap: proc: Use remove_proc_subtree()
  drm: proc: Use remove_proc_subtree()
  drm: proc: Use minor->index to label things, not PDE->name
  drm: Constify drm_proc_list[]
  zoran: Don't print proc_dir_entry data in debug
  reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
  proc: Supply an accessor for getting the data from a PDE's parent
  airo: Use remove_proc_subtree()
  rtl8192u: Don't need to save device proc dir PDE
  rtl8187se: Use a dir under /proc/net/r8180/
  proc: Add proc_mkdir_data()
  proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
  proc: Move PDE_NET() to fs/proc/proc_net.c
  ...
2013-05-01 17:51:54 -07:00
David Howells
270b5ac215 proc: Add proc_mkdir_data()
Add proc_mkdir_data() to allow procfs directories to be created that are
annotated at the time of creation with private data rather than doing this
post-creation.  This means no access is then required to the proc_dir_entry
struct to set this.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Neela Syam Kolli <megaraidlinux@lsi.com>
cc: Jerry Chuang <jerry-chuang@realtek.com>
cc: linux-scsi@vger.kernel.org
cc: devel@driverdev.osuosl.org
cc: linux-wireless@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:41 -04:00
Dan Carpenter
9151b3982d i2o: check copy_from_user() size parameter
Limit the size of the copy so we don't corrupt memory.  Hopefully this
can only be called by root, but fixing this makes the static checkers
happier.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Masanari Iida <standby24x7@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30 17:04:04 -07:00
Al Viro
f0689f0537 mptctl: don't wank with fasync in ->release()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-29 15:41:44 -04:00
Al Viro
d9dda78bad procfs: new helper - PDE_DATA(inode)
The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data.  Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09 14:13:32 -04:00
Al Viro
cac197031c fusion: switch to ->show_info()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09 14:13:18 -04:00
Al Viro
21ba37c9cf i2o: use proc_remove_subtree()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09 14:13:13 -04:00
Kent Overstreet
2f477877f8 block: Remove some unnecessary bi_vcnt usage
More prep work for immutable bvecs/effecient bio splitting - usage of
bi_vcnt has to be auditing, so getting rid of all the unnecessary usage
makes that easier.

Plus, bio_segments() is really what this code wanted, as it respects the
current value of bi_idx.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Eric Moore <Eric.Moore@lsi.com>
CC: "James E.J. Bottomley" <JBottomley@parallels.com>
CC: linux-scsi@vger.kernel.org
2013-03-23 14:15:31 -07:00
Greg Kroah-Hartman
47b1ea75fe Drivers: message: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:14 -08:00
Alan Cox
3012d60b39 drivers/message/fusion/mptscsih.c: missing break
This happens to do the right thing in all cases on fibre channel but not on
other media types

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Cc: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-18 15:02:12 -08:00
Masanari Iida
8fdbb340ef messages: i2o: Fix typo in messages/i2o
Correct spelling typo in messages/i2o.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-28 17:13:59 +01:00
Hanjun Guo
20953a6277 [SCSI] Fusion MPT: disable pci device when mpt map resoures failed
when probe a pci device, first we enable it, and disable it when
some error happened in the following process, because the power
state of the device is set to D0, and if MSI is disabled,
we will allocate irq and register gsi for this device in the enable process.

In function mpt_mapresources(MPT_ADAPTER *ioc), it forgot disable the
pci device when error happened, the irq and gsi will never be released.
this patch will fix it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com> 
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-14 17:59:29 +01:00
Alan Cox
261eba7335 drivers/message/i2o/i2o_config.c: bound allocation
Fix a case where users can try to allocate arbitarily large amounts of
memory. 64K is overkill for a config request so apply an upper bound.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:17 -07:00
Kamil Dudka
40251b8eb4 drivers/message/i2o/i2o_proc.c: the pointer returned from chtostr() points to an array which is no longer valid
...  when being used in the calling function.  Although it may work, the
behavior is undefined.  Detected by cppcheck.

Signed-off-by: Kamil Dudka <kdudka@redhat.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:17 -07:00
Linus Torvalds
08615d7d85 Merge branch 'akpm' (Andrew's patch-bomb)
Merge misc patches from Andrew Morton:

 - the "misc" tree - stuff from all over the map

 - checkpatch updates

 - fatfs

 - kmod changes

 - procfs

 - cpumask

 - UML

 - kexec

 - mqueue

 - rapidio

 - pidns

 - some checkpoint-restore feature work.  Reluctantly.  Most of it
   delayed a release.  I'm still rather worried that we don't have a
   clear roadmap to completion for this work.

* emailed from Andrew Morton <akpm@linux-foundation.org>: (78 patches)
  kconfig: update compression algorithm info
  c/r: prctl: add ability to set new mm_struct::exe_file
  c/r: prctl: extend PR_SET_MM to set up more mm_struct entries
  c/r: procfs: add arg_start/end, env_start/end and exit_code members to /proc/$pid/stat
  syscalls, x86: add __NR_kcmp syscall
  fs, proc: introduce /proc/<pid>/task/<tid>/children entry
  sysctl: make kernel.ns_last_pid control dependent on CHECKPOINT_RESTORE
  aio/vfs: cleanup of rw_copy_check_uvector() and compat_rw_copy_check_uvector()
  eventfd: change int to __u64 in eventfd_signal()
  fs/nls: add Apple NLS
  pidns: make killed children autoreap
  pidns: use task_active_pid_ns in do_notify_parent
  rapidio/tsi721: add DMA engine support
  rapidio: add DMA engine support for RIO data transfers
  ipc/mqueue: add rbtree node caching support
  tools/selftests: add mq_perf_tests
  ipc/mqueue: strengthen checks on mqueue creation
  ipc/mqueue: correct mq_attr_ok test
  ipc/mqueue: improve performance of send/recv
  selftests: add mq_open_tests
  ...
2012-05-31 18:10:18 -07:00
Sergei Shtylyov
9ceb5c16f5 drivers/message/fusion: use pci_dev->revision
This driver uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so it
wasn't converted by 44c10138fd ("PCI: Change all drivers to use
pci_device->revision").

In one case, it even reads PCI revision ID without using it -- that code
is now removed...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com>
Cc: Eric Moore <eric.moore@lsi.com>
Acked-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-31 17:49:26 -07:00
Linus Torvalds
054552272e SCSI misc on 20120531
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull final round of SCSI updates from James Bottomley:
 "This is primarily another round of driver updates (bnx2fc, qla2xxx,
  qla4xxx) including the target mode driver for qla2xxx.  We've also got
  a couple of regression fixes (async scanning, broken this merge window
  and a fix to a long standing break in the scsi_wait_scan module)."

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (45 commits)
  [SCSI] fix scsi_wait_scan
  [SCSI] fix async probe regression
  [SCSI] be2iscsi: fix dma free size mismatch regression
  [SCSI] qla4xxx: Update driver version to 5.02.00-k17
  [SCSI] qla4xxx: Capture minidump for ISP82XX on firmware failure
  [SCSI] qla4xxx: Add change_queue_depth API support
  [SCSI] qla4xxx: Fix clear ddb mbx command failure issue.
  [SCSI] qla4xxx: Fix kernel panic during discovery logout.
  [SCSI] qla4xxx: Correct early completion of pending mbox.
  [SCSI] fcoe, bnx2fc, libfcoe: SW FCoE and bnx2fc use FCoE Syfs
  [SCSI] libfcoe: Add fcoe_sysfs
  [SCSI] bnx2fc: Allocate fcoe_ctlr with bnx2fc_interface, not as a member
  [SCSI] fcoe: Allocate fcoe_ctlr with fcoe_interface, not as a member
  [SCSI] Fix dm-multipath starvation when scsi host is busy
  [SCSI] ufs: fix potential NULL pointer dereferencing error in ufshcd_prove.
  [SCSI] qla2xxx: don't free pool that wasn't allocated
  [SCSI] mptfusion: unlock on error in mpt_config()
  [SCSI] tcm_qla2xxx: Add >= 24xx series fabric module for target-core
  [SCSI] qla2xxx: Add LLD target-mode infrastructure for >= 24xx series
  [SCSI] Revert "qla2xxx: During loopdown perform Diagnostic loopback."
  ...
2012-05-31 12:02:41 -07:00
Dan Carpenter
83ff74e338 [SCSI] mptfusion: unlock on error in mpt_config()
We introduced a new return here and forgot to unlock the mutex.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-05-22 11:50:54 +01:00
Paul Gortmaker
bb8187d35f MCA: delete all remaining traces of microchannel bus support.
Hardware with MCA bus is limited to 386 and 486 class machines
that are now 20+ years old and typically with less than 32MB
of memory.  A quick search on the internet, and you see that
even the MCA hobbyist/enthusiast community has lost interest
in the early 2000 era and never really even moved ahead from
the 2.4 kernels to the 2.6 series.

This deletes anything remaining related to CONFIG_MCA from core
kernel code and from the x86 architecture.  There is no point in
carrying this any further into the future.

One complication to watch for is inadvertently scooping up
stuff relating to machine check, since there is overlap in
the TLA name space (e.g. arch/x86/boot/mca.c).

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: James Bottomley <JBottomley@Parallels.com>
Cc: x86@kernel.org
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-05-17 19:06:13 -04:00
Paul Gortmaker
ee446fd5e6 tokenring: delete all remaining driver support
This represents the mass deletion of the of the tokenring support.

It gets rid of:
  - the net/tr.c which the drivers depended on
  - the drivers/net component
  - the Kbuild infrastructure around it
  - any tokenring related CONFIG_ settings in any defconfigs
  - the tokenring headers in the include/linux dir
  - the firmware associated with the tokenring drivers.
  - any associated token ring documentation.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-05-15 20:23:16 -04:00
Linus Torvalds
0195c00244 Disintegrate and delete asm/system.h
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Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system

Pull "Disintegrate and delete asm/system.h" from David Howells:
 "Here are a bunch of patches to disintegrate asm/system.h into a set of
  separate bits to relieve the problem of circular inclusion
  dependencies.

  I've built all the working defconfigs from all the arches that I can
  and made sure that they don't break.

  The reason for these patches is that I recently encountered a circular
  dependency problem that came about when I produced some patches to
  optimise get_order() by rewriting it to use ilog2().

  This uses bitops - and on the SH arch asm/bitops.h drags in
  asm-generic/get_order.h by a circuituous route involving asm/system.h.

  The main difficulty seems to be asm/system.h.  It holds a number of
  low level bits with no/few dependencies that are commonly used (eg.
  memory barriers) and a number of bits with more dependencies that
  aren't used in many places (eg.  switch_to()).

  These patches break asm/system.h up into the following core pieces:

    (1) asm/barrier.h

        Move memory barriers here.  This already done for MIPS and Alpha.

    (2) asm/switch_to.h

        Move switch_to() and related stuff here.

    (3) asm/exec.h

        Move arch_align_stack() here.  Other process execution related bits
        could perhaps go here from asm/processor.h.

    (4) asm/cmpxchg.h

        Move xchg() and cmpxchg() here as they're full word atomic ops and
        frequently used by atomic_xchg() and atomic_cmpxchg().

    (5) asm/bug.h

        Move die() and related bits.

    (6) asm/auxvec.h

        Move AT_VECTOR_SIZE_ARCH here.

  Other arch headers are created as needed on a per-arch basis."

Fixed up some conflicts from other header file cleanups and moving code
around that has happened in the meantime, so David's testing is somewhat
weakened by that.  We'll find out anything that got broken and fix it..

* tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits)
  Delete all instances of asm/system.h
  Remove all #inclusions of asm/system.h
  Add #includes needed to permit the removal of asm/system.h
  Move all declarations of free_initmem() to linux/mm.h
  Disintegrate asm/system.h for OpenRISC
  Split arch_align_stack() out from asm-generic/system.h
  Split the switch_to() wrapper out of asm-generic/system.h
  Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h
  Create asm-generic/barrier.h
  Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h
  Disintegrate asm/system.h for Xtensa
  Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt]
  Disintegrate asm/system.h for Tile
  Disintegrate asm/system.h for Sparc
  Disintegrate asm/system.h for SH
  Disintegrate asm/system.h for Score
  Disintegrate asm/system.h for S390
  Disintegrate asm/system.h for PowerPC
  Disintegrate asm/system.h for PA-RISC
  Disintegrate asm/system.h for MN10300
  ...
2012-03-28 15:58:21 -07:00
David Howells
9ffc93f203 Remove all #inclusions of asm/system.h
Remove all #inclusions of asm/system.h preparatory to splitting and killing
it.  Performed with the following command:

perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *`

Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-28 18:30:03 +01:00
Yinghai Lu
210647af89 PCI: Rename pci_remove_bus_device to pci_stop_and_remove_bus_device
The old pci_remove_bus_device actually did stop and remove.

Make the name reflect that to reduce confusion.

This patch is done by sed scripts and changes back some incorrect
__pci_remove_bus_device changes.

Suggested-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-27 12:12:18 -08:00
Linus Torvalds
d04baa157d SCSI updates for post 3.2 merge window
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

SCSI updates for post 3.2 merge window

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (67 commits)
  [SCSI] lpfc 8.3.28: Update driver version to 8.3.28
  [SCSI] lpfc 8.3.28: Add Loopback support for SLI4 adapters
  [SCSI] lpfc 8.3.28: Critical Miscellaneous fixes
  [SCSI] Lpfc 8.3.28: FC and SCSI Discovery Fixes
  [SCSI] lpfc 8.3.28: Add support for ABTS failure handling
  [SCSI] lpfc 8.3.28: SLI fixes and added SLI4 support
  [SCSI] lpfc 8.3.28: Miscellaneous fixes in sysfs and mgmt interfaces
  [SCSI] mpt2sas: Removed redundant calling of _scsih_probe_devices() from _scsih_probe
  [SCSI] mac_scsi: Remove obsolete IRQ_FLG_* users
  [SCSI] qla4xxx: Update driver version to 5.02.00-k10
  [SCSI] qla4xxx: check for FW alive before calling chip_reset
  [SCSI] qla4xxx: Fix qla4xxx_dump_buffer to dump buffer correctly
  [SCSI] qla4xxx: Fix the IDC locking mechanism
  [SCSI] qla4xxx: Wait for disable_acb before doing set_acb
  [SCSI] qla4xxx: Don't recover adapter if device state is FAILED
  [SCSI] qla4xxx: fix call trace on rmmod with ql4xdontresethba=1
  [SCSI] qla4xxx: Fix CPU lockups when ql4xdontresethba set
  [SCSI] qla4xxx: Perform context resets in case of context failures.
  [SCSI] iscsi class: export pid of process that created
  [SCSI] mpt2sas: Remove unused duplicate diag_buffer_enable param
  ...
2012-01-10 10:36:08 -08:00
Linus Torvalds
98793265b4 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: (53 commits)
  Kconfig: acpi: Fix typo in comment.
  misc latin1 to utf8 conversions
  devres: Fix a typo in devm_kfree comment
  btrfs: free-space-cache.c: remove extra semicolon.
  fat: Spelling s/obsolate/obsolete/g
  SCSI, pmcraid: Fix spelling error in a pmcraid_err() call
  tools/power turbostat: update fields in manpage
  mac80211: drop spelling fix
  types.h: fix comment spelling for 'architectures'
  typo fixes: aera -> area, exntension -> extension
  devices.txt: Fix typo of 'VMware'.
  sis900: Fix enum typo 'sis900_rx_bufer_status'
  decompress_bunzip2: remove invalid vi modeline
  treewide: Fix comment and string typo 'bufer'
  hyper-v: Update MAINTAINERS
  treewide: Fix typos in various parts of the kernel, and fix some comments.
  clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR
  gpio: Kconfig: drop unknown symbol 'CS5535_GPIO'
  leds: Kconfig: Fix typo 'D2NET_V2'
  sound: Kconfig: drop unknown symbol ARCH_CLPS7500
  ...

Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new
kconfig additions, close to removed commented-out old ones)
2012-01-08 13:21:22 -08:00
Al Viro
d161a13f97 switch procfs to umode_t use
both proc_dir_entry ->mode and populating functions

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03 22:54:56 -05:00
Chandrakala Chavva
85d37226fb [SCSI] mptsas: Add device ID for SAS1068_820XELP.
Signed-off-by: Chandrakala Chavva <cchavva@caviumnetworks.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-15 10:57:30 +04:00
Ferenc Wagner
8af3d8d5bc [SCSI] fusion: ensure NUL-termination of MptCallbacksName elements
Using strlcpy instead of memcpy makes the strlen() calls superfluous
and also ensures zero-termination of the copied string.
At the same time get rid of the magic constant 50.

Actually, I can't see why copying the callback name is necessary
instead of simply storing a pointer to it (just like to the callback
function itself), but that goes beyond the scope of this fix.

Signed-off-by: Ferenc Wagner <wferi@niif.hu>
Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-15 10:57:29 +04:00
Justin P. Mattock
42b2aa86c6 treewide: Fix typos in various parts of the kernel, and fix some comments.
The below patch fixes some typos in various parts of the kernel, as well as fixes some comments.
Please let me know if I missed anything, and I will try to get it changed and resent.

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-12-02 14:57:31 +01:00
Paul Gortmaker
314ef9cb52 drivers/message: Add module.h to i2o/pci.c
This file really needs the full module.h header file present, but
was just getting it implicitly before.  Fix it up in advance so we
avoid build failures once the cleanup commit is present.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:53 -04:00
nagalakshmi.nandigama@lsi.com
513382c9a2 [SCSI] mptfusion: Added check for SILI bit in READ_16 CDB for DATA UNDERRUN ERRATA
When READ_16 command is issued, the setting of SILI Bit in CDB is confirmed
and if SILI bit is off, the processing of relavent Errata is executed.

Added code for checking SILI bit for READ_16 as described in "SSC-4".

Signed-off-by: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-22 15:15:08 +04:00
kashyap.desai@lsi.com
98cbe371fd [SCSI] mptfusion: Fix for device offline while doing aggressive HBA reset
[Resend patch as per Bernd Schubert comment ]

Issue:

Device goes offline while doing aggressive HBA reset
along with IO using some utility.

Root cause:

FW goes into bad state due to aggressive reset. Softreset does not
help to recover FW. And also aggressive reset open up the window for
Error handling thread to kicked off at the same time HBA will be in
constant RESET loop as part of aggressive reset test case can lead
Device to goes offline.

Changes:

1. Added extra check as below inside eh_timed_out call back as below.
   if(ioc->ioc_reset_in_progress) Rc = EH_TIMER_RESET

2. Removed " DOORBELL_ACTIVE" check for SAS controller from task
   management context.  Since SAS controller uses high priority queue
   for task management. This check is not required for SAS controller.

3. Moved SoftReset call to HardReset from Task Mgmt context.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-27 08:35:53 -06:00
kashyap.desai@lsi.com
731f56c845 [SCSI] mptfusion: Bump version 3.4.20
Upgrade version string.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-27 08:35:19 -06:00
kashyap.desai@lsi.com
a38ae37fdc [SCSI] mptfusion: Avoid out of order Event processing due to cpu migration
Driver will now schedule MPI event using "delay_work_queue_on" to
specify same CPU to be used to schedule work.  Earlier it used
"delay_work_queue" which can cause migration of work due to kernel'
timer migration feature.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-27 08:35:18 -06:00
kashyap.desai@lsi.com
e62cca19a9 [SCSI] mptfusion: Better handling of DEAD IOC PCI-E Link down error condition
Find Non-Operation IOC and remove it from OS: Detecting
dead(non-functional) ioc will be done reading doorbell register value
from fault reset thread, which has been called from work thread
context after each specific interval. If doorbell value is 0xFFFFFFFF,
it will be considered as IOC is non-operational and marked as dead
ioc.

Once Dead IOC has been detected, it will be removed at pci layer using
"pci_remove_bus_device" API.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-27 08:35:16 -06:00
kashyap.desai@lsi.com
3850b14e51 [SCSI] mptfusion: Set max sector count module parameter
The max_sector setting is currently hard-coded in the driver to 8192
sectors (4MB transfers). Using new module parameter, if max_sectors is
specified at load time, the default of 8192 will be overridden.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-27 08:35:14 -06:00