linux-toradex.git/drivers/block/rsxx/dev.c, branch v3.13.9

rsxx: Fix possible kernel panic with invalid config.

2013-11-08T16:10:29+00:00

This patch fixes a possible Kernel Panic on driver load if
the configuration on the card is messed up or not yet set.
The driver could possible give a 32 bit unsigned all Fs to
the kernel as the device's block size.

Now we only write the block size to the kernel if the
configuration from the card is valid.

Also, driver version is being updated.

Signed-off-by: Philip J Kelleher 
Signed-off-by: Jens Axboe

rsxx: Adapter address space sanity check.

2013-06-19T11:52:10+00:00

Adding a sanity check to guarentee that DMAs outside of the device's
address space will be errored out right away.

Signed-off-by: Philip J Kelleher 
Signed-off-by: Jens Axboe

rsxx: Fixes DLPAR add kernel panic if partition still mounted.

2013-06-19T11:52:09+00:00

A kernel panic would occur on a DLPAR add if there was a partition
still mounted during the DLPAR remove. This bug fix will allow the
user to unmount the partition and bring the driver back into a
good state after the DLPAR add.

Signed-off-by: Philip J Kelleher 
Signed-off-by: Jens Axboe

rsxx: Allow block size to be determined by configuration.

2013-06-19T11:52:09+00:00

Previously, the block size was determined by whether or not
our Hardware could handle 512 byte accesses. Now, all of our
Hardware can handle 512 and 4096 block sizes.

This fix allows it to be user configurable.

Signed-off-by: Philip J Kelleher 
Signed-off-by: Jens Axboe

rsxx: Restructured DMA cancel scheme.

2013-06-19T11:52:09+00:00

Before, DMAs would never be cancelled if there was a data stall
or an EEH Permenant failure which would cause an unrecoverable
I/O hang.

The DMA cancellation mechanism has been modified to fix
these issues and allows DMAs to be cancelled during the
above mentioned events.

Signed-off-by: Philip J Kelleher 
Signed-off-by: Jens Axboe

block: IBM RamSan 70/80 driver fixes

2013-02-18T20:35:59+00:00

This patch includes the following driver fixes for the
IBM RamSan 70/80 driver:

o Changed the creg_ctrl lock from a mutex to a spinlock.
o Added a count check for ioctl calls.
o Removed unnecessary casting of void pointers.
o Made every function static that needed to be.
o Added comments to explain things more thoroughly.

Signed-off-by: Philip J Kelleher 
Signed-off-by: Jens Axboe

block: IBM RamSan 70/80 device driver

2013-02-05T13:16:05+00:00

This patch includes the device driver for the IBM RamSan
family of PCI SSD flash storage cards. This driver will
include support for the RamSan 70 and 80. The driver
presents a block device for device I/O.

Signed-off-by: Philip J Kelleher 
Signed-off-by: Jens Axboe