linux/drivers/dma/ioat
Dan Williams f6ab95b557 ioat: preserve chanctrl bits when re-arming interrupts
The register write in ioat_dma_cleanup_tasklet is unfortunate in two
ways:
1/ It clears the extra 'enable' bits that we set at alloc_chan_resources time
2/ It gives the impression that it disables interrupts when it is in
   fact re-arming interrupts

[ Impact: fix, persist the value of the chanctrl register when re-arming ]

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-09-08 17:30:24 -07:00
..
dca.c
dma.c ioat: preserve chanctrl bits when re-arming interrupts 2009-09-08 17:30:24 -07:00
dma.h ioat: cleanup completion status reads 2009-09-08 17:30:24 -07:00
dma_v2.c ioat: preserve chanctrl bits when re-arming interrupts 2009-09-08 17:30:24 -07:00
dma_v2.h ioat: add some dev_dbg() calls 2009-09-08 17:30:23 -07:00
hw.h ioat: define descriptor control bit-field 2009-09-08 17:29:55 -07:00
Makefile ioat2,3: convert to a true ring buffer 2009-09-08 17:29:55 -07:00
pci.c ioat2,3: convert to a true ring buffer 2009-09-08 17:29:55 -07:00
registers.h ioat: preserve chanctrl bits when re-arming interrupts 2009-09-08 17:30:24 -07:00