lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

async_tx: replace 'int_en' with operation preparation flags

Browse Source 
Pass a full set of flags to drivers' per-operation 'prep' routines.
Currently the only flag passed is DMA_PREP_INTERRUPT.  The expectation is
that arch-specific async_tx_find_channel() implementations can exploit this
capability to find the best channel for an operation.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Reviewed-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
This commit is contained in:
Dan Williams
2008-02-02 19:49:58 -07:00
parent 0036731c88
commit d4c56f97ff
8 changed files with 62 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
crypto/async_tx/async_xor.c
View File

@ -45,6 +45,7 @@ do_async_xor(struct dma_device *device,
dma_addr_t *dma_src = (dma_addr_t *) src_list;
struct dma_async_tx_descriptor *tx;
int i;
unsigned long dma_prep_flags = cb_fn ? DMA_PREP_INTERRUPT : 0;
pr_debug("%s: len: %zu\n", __FUNCTION__, len);
@ -60,7 +61,7 @@ do_async_xor(struct dma_device *device,
* in case they can not provide a descriptor
*/
tx = device->device_prep_dma_xor(chan, dma_dest, dma_src, src_cnt, len,
cb_fn != NULL);
dma_prep_flags);
if (!tx) {
if (depend_tx)
dma_wait_for_async_tx(depend_tx);
@ -68,7 +69,7 @@ do_async_xor(struct dma_device *device,
while (!tx)
tx = device->device_prep_dma_xor(chan, dma_dest,
dma_src, src_cnt, len,
cb_fn != NULL);
dma_prep_flags);
}
async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param);
@ -268,6 +269,7 @@ async_xor_zero_sum(struct page *dest, struct page **src_list,
if (device) {
dma_addr_t *dma_src = (dma_addr_t *) src_list;
unsigned long dma_prep_flags = cb_fn ? DMA_PREP_INTERRUPT : 0;
int i;
pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len);
@ -278,7 +280,7 @@ async_xor_zero_sum(struct page *dest, struct page **src_list,
tx = device->device_prep_dma_zero_sum(chan, dma_src, src_cnt,
len, result,
cb_fn != NULL);
dma_prep_flags);
if (!tx) {
if (depend_tx)
dma_wait_for_async_tx(depend_tx);
@ -286,7 +288,7 @@ async_xor_zero_sum(struct page *dest, struct page **src_list,
while (!tx)
tx = device->device_prep_dma_zero_sum(chan,
dma_src, src_cnt, len, result,
cb_fn != NULL);
dma_prep_flags);
}
async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param);