linux-toradex.git/drivers/misc/genwqe/card_base.c, branch v4.4.7

GenWQE: Fix checkpatch complaints

2014-09-24T06:15:47+00:00

The checkpatch.pl script got improved. I ran it on the latest GenWQE
sources and fixed what it complained about.

Signed-off-by: Frank Haverkamp 
Signed-off-by: Greg Kroah-Hartman

GenWQE: Check return code of pci_sriov_enable

2014-09-24T06:15:46+00:00

Forgetting to check this, can lead to problems on systems which
do not support SRIOV.

Signed-off-by: Frank Haverkamp 
Signed-off-by: Greg Kroah-Hartman

GenWQE: Update author information

2014-09-24T06:15:46+00:00

Updated email address of co-author.

Signed-off-by: Frank Haverkamp 
Signed-off-by: Michael Jung 
Signed-off-by: Greg Kroah-Hartman

GenWQE: Remove sysfs entry for driver version

2014-09-24T06:15:46+00:00

A special sysfs entry to display the driver version is not
needed. We left the driver version and adjusted it to the
naming a lot of other drivers use. The information can be
retrieved by using modinfo genwqe_card.

modinfo genwqe_card will provide the same information.

Signed-off-by: Frank Haverkamp 
Signed-off-by: Greg Kroah-Hartman

GenWQE: Check pci_get_totalvfs return code

2014-09-24T06:15:46+00:00

Currently the driver is using the pci_get_totalvfs() return code
directly in a loop. To avoid problems with potentially negative
returns in case of errors, we are adding some more sanity checking
code.

Signed-off-by: Frank Haverkamp 
Signed-off-by: Greg Kroah-Hartman

misc: remove DEFINE_PCI_DEVICE_TABLE usage

2014-07-18T23:54:23+00:00

Removes DEFINE_PCI_DEVICE_TABLE from drivers/misc/genwqe/card_base.c,
drivers/misc/genwqe/card_base.c, and drivers/misc/vmw_vmci/vmci_guest.c
in preferance of a "real" structure definition.

Signed-off-by: Greg Kroah-Hartman

GenWQE: Remove unnecessary include

2014-07-10T22:22:13+00:00

The include for the UAPI header file from card_base.c can be removed
since it's already included on card_base.h.

Signed-off-by: Kleber Sacilotto de Souza 
Signed-off-by: Greg Kroah-Hartman

GenWQE: Improve hardware error recovery

2014-07-09T21:14:27+00:00

Currently, in the event of a fatal hardware error, the driver tries a
recovery procedure that calls pci_reset_function() to reset the card.
This is not sufficient in some cases, needing a fundamental reset to
bring the card back.

This patch implements a call to the platform fundamental reset procedure
on the error recovery path if GENWQE_PLATFORM_ERROR_RECOVERY is enabled.
This is implemented by default only on PPC64, since this can cause
problems on other archs, e.g. zSeries, where the platform has its own
recovery procedures, leading to a potencial race conditition. For these
cases, the recovery is kept as it was before.

Signed-off-by: Kleber Sacilotto de Souza 
Acked-by: Frank Haverkamp 
Signed-off-by: Greg Kroah-Hartman

GenWQE: Add support for EEH error recovery

2014-07-09T21:14:27+00:00

This patch implements the callbacks and functions necessary to have EEH
recovery support.

It adds a config option to enable or disable explicit calls to trigger
platform specific mechanisms on error recovery paths. This option is
enabled by default only on PPC64 systems and can be overritten via
debugfs. If this option is enabled, on the error recovery path the
driver will call pci_channel_offline() to check for error condition and
issue non-raw MMIO reads to trigger early EEH detection in case of
hardware failures. This is necessary since the driver MMIO helper
funtions use raw accessors.

Signed-off-by: Kleber Sacilotto de Souza 
Acked-by: Frank Haverkamp 
Signed-off-by: Greg Kroah-Hartman

GenWQE: Add sysfs interface for bitstream reload

2014-07-09T21:14:27+00:00

This patch adds an interface on sysfs for userspace to request a card
bitstream reload. It sets the appropriate register and try to perform a
fundamental reset on the PCIe slot for the card to reload the bitstream
from the chosen partition.

Signed-off-by: Kleber Sacilotto de Souza 
Acked-by: Frank Haverkamp 
Signed-off-by: Greg Kroah-Hartman