linux-toradex.git/drivers/ntb/ntb_hw.c, branch v3.10.33

NTB: Correct debugfs to work with more than 1 NTB Device

2013-11-13T03:05:35+00:00

commit 1517a3f21a1dd321f16bcf44204bddff9d21abd0 upstream.

Debugfs was setup in NTB to only have a single debugfs directory.  This
resulted in the leaking of debugfs directories and files when multiple
NTB devices were present, due to each device stomping on the variables
containing the previous device's values (thus preventing them from being
freed on cleanup).  Correct this by creating a secondary directory of
the PCI BDF for each device present, and nesting the previously existing
information in those directories.

Signed-off-by: Jon Mason 
Signed-off-by: Greg Kroah-Hartman

NTB: Correct USD/DSD Identification

2013-11-13T03:05:34+00:00

commit b6750cfe0710a14fd147ba27fddbecae8ba88c77 upstream.

Due to ambiguous documentation, the USD/DSD identification is backward
when compared to the setting in BIOS.  Correct the bits to match the
BIOS setting.

Signed-off-by: Jon Mason 
Signed-off-by: Greg Kroah-Hartman

NTB: Correct Number of Scratch Pad Registers

2013-11-13T03:05:34+00:00

commit 87034511519815259e37336f52edf06d114d43b6 upstream.

The NTB Xeon hardware has 16 scratch pad registers and 16 back-to-back
scratch pad registers.  Correct the #define to represent this and update
the variable names to reflect their usage.

Signed-off-by: Jon Mason 
Signed-off-by: Greg Kroah-Hartman

NTB: Add Error Handling in ntb_device_setup

2013-11-13T03:05:34+00:00

commit 3b12a0d15bd1559e72ad21d9d807fd2a6706f0ab upstream.

If an error is encountered in ntb_device_setup, it is possible that the
spci_cmd isn't populated.  Writes to the offset can result in a NULL
pointer dereference.  This issue is easily encountered by running in
NTB-RP mode, as it currently is not supported and will generate an
error.  To get around this issue, return if an error is encountered
prior to attempting to write to the spci_cmd offset.

Signed-off-by: Jon Mason 
Signed-off-by: Greg Kroah-Hartman

NTB: Handle 64bit BAR sizes

2013-05-15T17:57:40+00:00

64bit BAR sizes are permissible with an NTB device.  To support them
various modifications and clean-ups were required, most significantly
using 2 32bit scratch pad registers for each BAR.

Also, modify the driver to allow more than 2 Memory Windows.

Signed-off-by: Jon Mason

ntb: off by one sanity checks

2013-05-15T17:57:24+00:00

These tests are off by one.  If "mw" is equal to NTB_NUM_MW then we
would go beyond the end of the ndev->mw[] array.

Signed-off-by: Dan Carpenter 
Signed-off-by: Jon Mason

NTB: Fix Sparse Warnings

2013-01-21T22:34:21+00:00

Address the sparse warnings and resulting fallout

Signed-off-by: Jon Mason 
Signed-off-by: Greg Kroah-Hartman

NTB: Update Version

2013-01-20T23:48:13+00:00

Update NTB version to 0.25

Signed-off-by: Jon Mason 
Signed-off-by: Greg Kroah-Hartman

NTB: namespacecheck cleanups

2013-01-20T23:45:51+00:00

Declare ntb_bus_type static to remove it from name space, and remove
unused ntb_get_max_spads function.  Found via `make namespacecheck`.

Signed-off-by: Jon Mason 
Signed-off-by: Greg Kroah-Hartman

ntb: remove __dev* markings

2013-01-18T03:17:42+00:00

These are now gone from the kernel, so remove them from the newly-added
drivers before they start to cause build errors for people.

Cc: Jon Mason 
Signed-off-by: Greg Kroah-Hartman