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authorDan Williams <dan.j.williams@intel.com>2008-02-03 05:49:58 +0300
committerDan Williams <dan.j.williams@intel.com>2008-02-06 20:12:18 +0300
commitd4c56f97ff21df405d0cebe11f49e3c3c79662b5 (patch)
treee6b0de433d7c985982ac12815998242a786d87b2 /crypto/async_tx/async_xor.c
parent0036731c88fdb5bf4f04a796a30b5e445fc57f54 (diff)
downloadlinux-d4c56f97ff21df405d0cebe11f49e3c3c79662b5.tar.xz
async_tx: replace 'int_en' with operation preparation flags
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>
Diffstat (limited to 'crypto/async_tx/async_xor.c')
-rw-r--r--crypto/async_tx/async_xor.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 12cba1a4205b..68d2fe4465d8 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -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);