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authorDan Williams <dan.j.williams@intel.com>2009-09-08 17:55:21 -0700
committerDan Williams <dan.j.williams@intel.com>2009-09-08 17:55:21 -0700
commitbbb20089a3275a19e475dbc21320c3742e3ca423 (patch)
tree216fdc1cbef450ca688135c5b8969169482d9a48 /drivers/dma/dmatest.c
parent3e48e656903e9fd8bc805c6a2c4264d7808d315b (diff)
parent657a77fa7284d8ae28dfa48f1dc5d919bf5b2843 (diff)
downloadlinux-bbb20089a3275a19e475dbc21320c3742e3ca423.tar.bz2
Merge branch 'dmaengine' into async-tx-next
Conflicts: crypto/async_tx/async_xor.c drivers/dma/ioat/dma_v2.h drivers/dma/ioat/pci.c drivers/md/raid5.c
Diffstat (limited to 'drivers/dma/dmatest.c')
-rw-r--r--drivers/dma/dmatest.c21
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index a3722a7384b5..a32a4cf7b1e0 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -38,6 +38,11 @@ module_param(max_channels, uint, S_IRUGO);
MODULE_PARM_DESC(max_channels,
"Maximum number of channels to use (default: all)");
+static unsigned int iterations;
+module_param(iterations, uint, S_IRUGO);
+MODULE_PARM_DESC(iterations,
+ "Iterations before stopping test (default: infinite)");
+
static unsigned int xor_sources = 3;
module_param(xor_sources, uint, S_IRUGO);
MODULE_PARM_DESC(xor_sources,
@@ -119,7 +124,7 @@ static void dmatest_init_srcs(u8 **bufs, unsigned int start, unsigned int len)
buf[i] = PATTERN_SRC | (~i & PATTERN_COUNT_MASK);
for ( ; i < start + len; i++)
buf[i] = PATTERN_SRC | PATTERN_COPY
- | (~i & PATTERN_COUNT_MASK);;
+ | (~i & PATTERN_COUNT_MASK);
for ( ; i < test_buf_size; i++)
buf[i] = PATTERN_SRC | (~i & PATTERN_COUNT_MASK);
buf++;
@@ -281,7 +286,8 @@ static int dmatest_func(void *data)
flags = DMA_CTRL_ACK | DMA_COMPL_SKIP_DEST_UNMAP | DMA_PREP_INTERRUPT;
- while (!kthread_should_stop()) {
+ while (!kthread_should_stop()
+ && !(iterations && total_tests >= iterations)) {
struct dma_device *dev = chan->device;
struct dma_async_tx_descriptor *tx = NULL;
dma_addr_t dma_srcs[src_cnt];
@@ -450,6 +456,13 @@ err_srcbuf:
err_srcs:
pr_notice("%s: terminating after %u tests, %u failures (status %d)\n",
thread_name, total_tests, failed_tests, ret);
+
+ if (iterations > 0)
+ while (!kthread_should_stop()) {
+ DECLARE_WAIT_QUEUE_HEAD(wait_dmatest_exit);
+ interruptible_sleep_on(&wait_dmatest_exit);
+ }
+
return ret;
}
@@ -531,11 +544,11 @@ static int dmatest_add_channel(struct dma_chan *chan)
if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask)) {
cnt = dmatest_add_threads(dtc, DMA_MEMCPY);
- thread_count += cnt > 0 ?: 0;
+ thread_count += cnt > 0 ? cnt : 0;
}
if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) {
cnt = dmatest_add_threads(dtc, DMA_XOR);
- thread_count += cnt > 0 ?: 0;
+ thread_count += cnt > 0 ? cnt : 0;
}
if (dma_has_cap(DMA_PQ, dma_dev->cap_mask)) {
cnt = dmatest_add_threads(dtc, DMA_PQ);