[PATCH v2 2/2] gpudev: use page_size in comm_list creation

[eagostini at nvidia.com]

From: Elena Agostini <eagostini at nvidia.com>

Memory allocated for CPU mapping the status flag
in the communication list should be aligned to the
GPU page size.

Fixes: 9b8cae4d991e ("gpudev: use CPU mapping in communication list")
Signed-off-by: Elena Agostini <eagostini at nvidia.com>
---
 lib/gpudev/gpudev.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/gpudev/gpudev.c b/lib/gpudev/gpudev.c
index fb1bee344c..56033f4a5f 100644
--- a/lib/gpudev/gpudev.c
+++ b/lib/gpudev/gpudev.c
@@ -820,6 +820,7 @@ rte_gpu_comm_create_list(uint16_t dev_id,
 	uint32_t idx_l;
 	int ret;
 	struct rte_gpu *dev;
+	struct rte_gpu_info info;
 
 	if (num_comm_items == 0) {
 		rte_errno = EINVAL;
@@ -833,6 +834,12 @@ rte_gpu_comm_create_list(uint16_t dev_id,
 		return NULL;
 	}
 
+	ret = rte_gpu_info_get(dev_id, &info);
+	if (ret < 0) {
+		rte_errno = ENODEV;
+		return NULL;
+	}
+
 	comm_list = rte_zmalloc(NULL,
 			sizeof(struct rte_gpu_comm_list) * num_comm_items, 0);
 	if (comm_list == NULL) {
@@ -855,7 +862,7 @@ rte_gpu_comm_create_list(uint16_t dev_id,
 	 */
 	comm_list[0].status_d = rte_gpu_mem_alloc(dev_id,
 			sizeof(enum rte_gpu_comm_list_status) * num_comm_items,
-			rte_mem_page_size());
+			info.page_size);
 	if (ret < 0) {
 		rte_errno = ENOMEM;
 		return NULL;
-- 
2.17.1