linux.git/drivers/dma/ioat.c, branch master

ioat: move to drivers/dma/ioat/

2009-07-28T21:32:12+00:00

When first created the ioat driver was the only inhabitant of
drivers/dma/.  Now, it is the only multi-file (more than a .c and a .h)
driver in the directory.  Moving it to an ioat/ subdirectory allows the
naming convention to be cleaned up, and allows for future splitting of
the source files by hardware version (v1, v2, and v3).

Signed-off-by: Maciej Sosnowski 
Signed-off-by: Dan Williams

dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

2009-04-07T15:31:11+00:00

Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Signed-off-by: Yang Hongyang
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

2009-04-07T15:31:10+00:00

Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

Signed-off-by: Yang Hongyang
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

I/OAT: update driver version and copyright dates

2009-03-04T23:04:40+00:00

Together with new fixes update driver version
and extend copyright dates ranges.

Signed-off-by: Maciej Sosnowski 
Signed-off-by: Shannon Nelson 
Acked-by: Jeff Kirsher 
Signed-off-by: Dan Williams

ioat: do not perform removal actions at shutdown

2009-01-06T18:38:20+00:00

Unregistering services should only happen at "remove" time.  This prevents
the device from being unregistered while dmaengine clients are still
active.  Also, the comment on ioat_remove is stale since removal is prevented
while a channel may be in use.

Reported-by: Alexander Beregalov 
Signed-off-by: Dan Williams

I/OAT: I/OAT version 3.0 support

2008-07-23T00:30:57+00:00

This patch adds to ioatdma and dca modules
support for Intel I/OAT DMA engine ver.3 (aka CB3 device).
The main features of I/OAT ver.3 are:
 * 8 single channel DMA devices (8 channels total)
 * 8 DCA providers, each can accept 2 requesters
 * 8-bit TAG values and 32-bit extended APIC IDs

Signed-off-by: Maciej Sosnowski 
Signed-off-by: Dan Williams

I/OAT: Add support for version 2 of ioatdma device

2007-11-15T02:45:41+00:00

Add support for version 2 of the ioatdma device.  This device handles
the descriptor chain and DCA services slightly differently:
 - Instead of moving the dma descriptors between a busy and an idle chain,
   this new version uses a single circular chain so that we don't have
   rewrite the next_descriptor pointers as we add new requests, and the
   device doesn't need to re-read the last descriptor.
 - The new device has the DCA tags defined internally instead of needing
   them defined statically.

Signed-off-by: Shannon Nelson 
Cc: "Williams, Dan J" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

I/OAT: clean up error handling and some print messages

2007-10-18T21:37:32+00:00

Make better use of dev_err(), and catch an error where the transaction
creation might fail.

Signed-off-by: Shannon Nelson 
Cc: Dan Williams 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

I/OAT: clean up of dca provider start and stop

2007-10-18T21:37:32+00:00

Don't start ioat_dca if ioat_dma didn't start, and then stop ioat_dca
before stopping ioat_dma.  Since the ioat_dma side does the pci device
work, This takes care of ioat_dca trying to use a bad device reference.

Signed-off-by: Shannon Nelson 
Cc: Dan Williams 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

I/OAT: cleanup pci issues

2007-10-18T21:37:32+00:00

Reorder the pci release actions
    Letting go of the resources in the right order helps get rid of
    occasional kernel complaints.

Fix the pci_driver object name [Randy Dunlap]
    Rename the struct pci_driver data so that false section mismatch
    warnings won't be produced.

Cc: Randy Dunlap 
Signed-off-by: Shannon Nelson 
Cc: Dan Williams 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds