diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2013-04-15 10:25:56 -0700 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-04-15 22:46:15 +0530 |
| commit | 7727eaa4490b7244934fe31f05e7329f30715267 (patch) | |
| tree | 32f34dec6650b20fcaa452930f655907cdd01ac3 /drivers/dma/ioat/registers.h | |
| parent | e0884772d323b745c65baa65df391b1c70829410 (diff) | |
ioatdma: Adding support for 16 src PQ ops and super extended descriptors
v3.3 introduced 16 sources PQ operations. This also introduced super extended
descriptors to support the 16 srcs operations. This patch adds support for
the 16 sources ops and in turn adds the super extended descriptors for those
ops.
5 SED pools are created depending on the descriptor sizes. An SED can be a 64
bytes sized descriptor or larger and must be physically contiguous. A kmem
cache pool is created for allocating the software descriptor that manages the
hardware descriptor. The super extended descriptor will take place of extended
descriptor under certain operations and be "attached" to the op descriptor
during operation. This is a new feature for ioatdma v3.3.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dan Williams <djbw@fb.com>
Acked-by: Dan Williams <djbw@fb.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/ioat/registers.h')
| -rw-r--r-- | drivers/dma/ioat/registers.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/ioat/registers.h b/drivers/dma/ioat/registers.h index c1ad1946809e..efdd47e47b82 100644 --- a/drivers/dma/ioat/registers.h +++ b/drivers/dma/ioat/registers.h @@ -79,6 +79,7 @@ #define IOAT_CAP_APIC 0x00000080 #define IOAT_CAP_XOR 0x00000100 #define IOAT_CAP_PQ 0x00000200 +#define IOAT_CAP_RAID16SS 0x00020000 #define IOAT_CHANNEL_MMIO_SIZE 0x80 /* Each Channel MMIO space is this size */ |