[Accel-config] [PATCH v2 1/1] accel-config:dsa_test Add no opcode operation support

The No-op operation performs no DMA operation. Add the test support.

Signed-off-by: Tony Zhu <tony.zhu(a)intel.com>
---
 test/dsa.c      | 28 ++++++++++++++++++++++++++++
 test/dsa.h      |  5 +++++
 test/dsa_test.c | 30 ++++++++++++++++++++++++++++++
 test/prep.c     | 28 ++++++++++++++++++++++++++++
 4 files changed, 91 insertions(+)

diff --git a/test/dsa.c b/test/dsa.c
index 5396b1b..ce6f6a1 100644
--- a/test/dsa.c
+++ b/test/dsa.c
@@ -554,6 +554,34 @@ void free_batch_task(struct batch_task *btsk)
 	free(btsk);
 }
 
+int dsa_wait_noop(struct dsa_context *ctx)
+{
+	struct dsa_completion_record *comp = ctx->single_task->comp;
+	int rc;
+
+	rc = dsa_wait_on_desc_timeout(comp, ms_timeout);
+	if (rc < 0) {
+		err("noop desc timeout\n");
+		return DSA_STATUS_TIMEOUT;
+	}
+
+	return DSA_STATUS_OK;
+}
+
+int dsa_noop(struct dsa_context *ctx)
+{
+	struct task *tsk = ctx->single_task;
+	int ret = DSA_STATUS_OK;
+
+	tsk->dflags = IDXD_OP_FLAG_CRAV | IDXD_OP_FLAG_RCR;
+
+	dsa_prep_noop(tsk);
+	dsa_desc_submit(ctx, tsk->desc);
+	ret = dsa_wait_noop(ctx);
+
+	return ret;
+}
+
 int dsa_wait_batch(struct dsa_context *ctx)
 {
 	int rc;
diff --git a/test/dsa.h b/test/dsa.h
index 4e3cddc..5db0c02 100644
--- a/test/dsa.h
+++ b/test/dsa.h
@@ -217,6 +217,9 @@ struct task *__alloc_task(void);
 int init_task(struct task *tsk, int tflags, int opcode,
 		unsigned long xfer_size);
 
+int dsa_noop(struct dsa_context *ctx);
+int dsa_wait_noop(struct dsa_context *ctx);
+
 int dsa_memcpy(struct dsa_context *ctx);
 int dsa_wait_memcpy(struct dsa_context *ctx);
 
@@ -232,6 +235,7 @@ int dsa_wait_compval(struct dsa_context *ctx);
 int dsa_dualcast(struct dsa_context *ctx);
 int dsa_wait_dualcast(struct dsa_context *ctx);
 
+void dsa_prep_noop(struct task *tsk);
 void dsa_prep_memcpy(struct task *tsk);
 void dsa_reprep_memcpy(struct dsa_context *ctx);
 void dsa_prep_memfill(struct task *tsk);
@@ -256,6 +260,7 @@ int init_batch_task(struct batch_task *btsk, int task_num, int tflags,
 		int opcode, unsigned long xfer_size, unsigned long dflags);
 
 void dsa_prep_batch(struct batch_task *btsk, unsigned long desc_flags);
+void dsa_prep_batch_noop(struct batch_task *btsk);
 void dsa_prep_batch_memcpy(struct batch_task *btsk);
 void dsa_prep_batch_memfill(struct batch_task *btsk);
 void dsa_prep_batch_compare(struct batch_task *btsk);
diff --git a/test/dsa_test.c b/test/dsa_test.c
index 90be118..5f7a7f1 100644
--- a/test/dsa_test.c
+++ b/test/dsa_test.c
@@ -58,6 +58,9 @@ static int test_batch(struct dsa_context *ctx, size_t buf_size,
 		return rc;
 
 	switch (bopcode) {
+	case DSA_OPCODE_NOOP:
+		dsa_prep_batch_noop(ctx->batch_task);
+		break;
 	case DSA_OPCODE_MEMMOVE:
 		dsa_prep_batch_memcpy(ctx->batch_task);
 		break;
@@ -157,6 +160,33 @@ int main(int argc, char *argv[])
 	}
 
 	switch (opcode) {
+	case DSA_OPCODE_NOOP: {
+		struct task *tsk;
+
+		info("noop: len %#lx tflags %#x\n", buf_size, tflags);
+
+		rc = alloc_task(dsa);
+		if (rc != DSA_STATUS_OK) {
+			err("noop: alloc task failed, rc=%d\n", rc);
+			goto error;
+		}
+
+		tsk = dsa->single_task;
+
+		rc = dsa_noop(dsa);
+		if (rc != DSA_STATUS_OK) {
+			err("noop failed stat %d\n", rc);
+			rc = -ENXIO;
+			break;
+		}
+
+		rc = task_result_verify(tsk, 0);
+		if (rc != DSA_STATUS_OK)
+			goto error;
+
+		break;
+	}
+
 	case DSA_OPCODE_BATCH:
 		if (bsize > dsa->max_batch_size || bsize < 2) {
 			err("invalid num descs: %d\n", bsize);
diff --git a/test/prep.c b/test/prep.c
index bb06626..f22f190 100644
--- a/test/prep.c
+++ b/test/prep.c
@@ -30,6 +30,17 @@ void dsa_desc_submit(struct dsa_context *ctx, struct dsa_hw_desc *hw)
 			usleep(10000);
 }
 
+void dsa_prep_noop(struct task *tsk)
+{
+	info("preparing descriptor for noop\n");
+
+	tsk->dflags = IDXD_OP_FLAG_CRAV | IDXD_OP_FLAG_RCR;
+	dsa_prep_desc_common(tsk->desc, tsk->opcode, (uint64_t)(tsk->dst1),
+			(uint64_t)(tsk->src1), 0, tsk->dflags);
+	tsk->desc->completion_addr = (uint64_t)(tsk->comp);
+	tsk->comp->status = 0;
+}
+
 void dsa_prep_memcpy(struct task *tsk)
 {
 	info("preparing descriptor for memcpy\n");
@@ -63,6 +74,23 @@ void dsa_reprep_memcpy(struct dsa_context *ctx)
 	dsa_desc_submit(ctx, hw);
 }
 
+void dsa_prep_batch_noop(struct batch_task *btsk)
+{
+	int i;
+	struct task *sub_task;
+
+	uint32_t dflags = IDXD_OP_FLAG_CRAV | IDXD_OP_FLAG_RCR;
+	for (i = 0; i < btsk->task_num; i++) {
+		sub_task = &(btsk->sub_tasks[i]);
+		dsa_prep_desc_common(sub_task->desc, sub_task->opcode,
+				(uint64_t)(sub_task->dst1),
+				(uint64_t)(sub_task->src1),
+				0, dflags);
+		sub_task->desc->completion_addr = (uint64_t)(sub_task->comp);
+		sub_task->comp->status = 0;
+	}
+}
+
 /* Performs no error or bound checking */
 void dsa_prep_batch_memcpy(struct batch_task *btsk)
 {
-- 
2.27.0