linux-toradex.git/drivers/block/mtip32xx, branch v3.10.78

mtip32xx: Remove dfs_parent after pci unregister

2014-07-07T01:54:13+00:00

commit af5ded8ccf21627f9614afc03b356712666ed225 upstream.

In module exit, dfs_parent and it's subtree were removed before
unregistering with pci. When debugfs entry for each device is attempted
to remove in pci_remove() context, they don't exist, as dfs_parent and
its children were already ripped apart.

Modified to first unregister with pci and then remove dfs_parent.

Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Increase timeout for STANDBY IMMEDIATE command

2014-07-07T01:54:13+00:00

commit 670a641420a3d9586eebe7429dfeec4e7ed447aa upstream.

Increased timeout for STANDBY IMMEDIATE command to 2 minutes.

Signed-off-by: Selvan Mani 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Fix ERO and NoSnoop values in PCIe upstream on AMD systems

2014-07-07T01:54:13+00:00

commit d1e714db8129a1d3670e449b87719c78e2c76f9f upstream.

A hardware quirk in P320h/P420m interfere with PCIe transactions on some
AMD chipsets, making P320h/P420m unusable. This workaround is to disable
ERO and NoSnoop bits in the parent and root complex for normal
functioning of these devices

NOTE: This workaround is specific to AMD chipset with a PCIe upstream
device with device id 0x5aXX

Signed-off-by: Asai Thambi S P 
Signed-off-by: Sam Bradshaw 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Set queue bounce limit

2014-05-06T14:55:32+00:00

commit 1044b1bb9278f2e656a1a7b63dc24a59506540aa upstream.

We need to set the queue bounce limit during the device initialization to
prevent excessive bouncing on 32 bit architectures.

Signed-off-by: Felipe Franciosi 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

mtip32xx: Correctly handle bio->bi_idx != 0 conditions

2013-05-15T08:09:05+00:00

Stacking drivers may append bvecs to existing bio's, resulting
in non-zero bi_idx conditions.  This patch counts the loops of
bio_for_each_segment() rather than inheriting the bi_idx value
to pass as a segment count to the hardware submission routine.

Signed-off-by: Sam Bradshaw 
Signed-off-by: Jens Axboe

mtip32xx: Fix NULL pointer dereference during module unload

2013-05-15T08:04:34+00:00

An open file-handle to one or more of the driver exported debugfs
nodes causes raciness in recursive removal during module unload;
sometimes a stale parent dentry is dereferenced when more than 1
pci device is present.

Signed-off-by: Sam Bradshaw 
Signed-off-by: Jens Axboe

Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block

2013-05-08T18:51:05+00:00

Pull block driver updates from Jens Axboe:
 "It might look big in volume, but when categorized, not a lot of
  drivers are touched.  The pull request contains:

   - mtip32xx fixes from Micron.

   - A slew of drbd updates, this time in a nicer series.

   - bcache, a flash/ssd caching framework from Kent.

   - Fixes for cciss"

* 'for-3.10/drivers' of git://git.kernel.dk/linux-block: (66 commits)
  bcache: Use bd_link_disk_holder()
  bcache: Allocator cleanup/fixes
  cciss: bug fix to prevent cciss from loading in kdump crash kernel
  cciss: add cciss_allow_hpsa module parameter
  drivers/block/mg_disk.c: add CONFIG_PM_SLEEP to suspend/resume functions
  mtip32xx: Workaround for unaligned writes
  bcache: Make sure blocksize isn't smaller than device blocksize
  bcache: Fix merge_bvec_fn usage for when it modifies the bvm
  bcache: Correctly check against BIO_MAX_PAGES
  bcache: Hack around stuff that clones up to bi_max_vecs
  bcache: Set ra_pages based on backing device's ra_pages
  bcache: Take data offset from the bdev superblock.
  mtip32xx: mtip32xx: Disable TRIM support
  mtip32xx: fix a smatch warning
  bcache: Disable broken btree fuzz tester
  bcache: Fix a format string overflow
  bcache: Fix a minor memory leak on device teardown
  bcache: Documentation updates
  bcache: Use WARN_ONCE() instead of __WARN()
  bcache: Add missing #include 
  ...

mtip32xx: Workaround for unaligned writes

2013-04-29T19:19:49+00:00

Workaround for handling unaligned writes: limit number of outstanding
unaligned writes

Signed-off-by: Sam Bradshaw 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe

mtip32xx: mtip32xx: Disable TRIM support

2013-04-14T08:24:24+00:00

Temporarily disabling TRIM support until TRIM related issues
are addressed in the firmware.

Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe

mtip32xx: fix a smatch warning

2013-04-14T08:24:24+00:00

Reported smatch warning:
drivers/block/mtip32xx/mtip32xx.c:4163 mtip_block_shutdown() warn: variable dereferenced before check 'dd->disk' (see line 4159)

dd->disk->disk_name accessed before the check if dd->disk is NULL. Fixed this
and access of dd->queue/dd->disk->queue.

Reported-by: Dan Carpenter 
Signed-off-by: Asai Thambi S P 
Signed-off-by: Jens Axboe