diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2009-08-30 04:09:26 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-08-30 04:09:26 +0200 |
| commit | ad283ea4a3ce82cda2efe33163748a397b31b1eb (patch) | |
| tree | 11cd739195f336895abe9e4a62d824e49a41c24f /arch/arm/mach-iop13xx | |
| parent | md/raid5,6: add percpu scribble region for buffer lists (diff) | |
| download | linux-ad283ea4a3ce82cda2efe33163748a397b31b1eb.tar.xz linux-ad283ea4a3ce82cda2efe33163748a397b31b1eb.zip | |
async_tx: add sum check flags
Replace the flat zero_sum_result with a collection of flags to contain
the P (xor) zero-sum result, and the soon to be utilized Q (raid6 reed
solomon syndrome) zero-sum result. Use the SUM_CHECK_ namespace instead
of DMA_ since these flags will be used on non-dma-zero-sum enabled
platforms.
Reviewed-by: Andre Noll <maan@systemlinux.org>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'arch/arm/mach-iop13xx')
| -rw-r--r-- | arch/arm/mach-iop13xx/include/mach/adma.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm/mach-iop13xx/include/mach/adma.h b/arch/arm/mach-iop13xx/include/mach/adma.h index 5722e86f2174..1cd31df8924d 100644 --- a/arch/arm/mach-iop13xx/include/mach/adma.h +++ b/arch/arm/mach-iop13xx/include/mach/adma.h @@ -428,18 +428,20 @@ static inline void iop_desc_set_block_fill_val(struct iop_adma_desc_slot *desc, hw_desc->block_fill_data = val; } -static inline int iop_desc_get_zero_result(struct iop_adma_desc_slot *desc) +static inline enum sum_check_flags +iop_desc_get_zero_result(struct iop_adma_desc_slot *desc) { struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; struct iop13xx_adma_desc_ctrl desc_ctrl = hw_desc->desc_ctrl_field; struct iop13xx_adma_byte_count byte_count = hw_desc->byte_count_field; + enum sum_check_flags flags; BUG_ON(!(byte_count.tx_complete && desc_ctrl.zero_result)); - if (desc_ctrl.pq_xfer_en) - return byte_count.zero_result_err_q; - else - return byte_count.zero_result_err; + flags = byte_count.zero_result_err_q << SUM_CHECK_Q; + flags |= byte_count.zero_result_err << SUM_CHECK_P; + + return flags; } static inline void iop_chan_append(struct iop_adma_chan *chan) |