[patch v4 3/6] bus/vmbus: store UIO fd for secondary process

[longli@linuxonhyperv.com]

From: Long Li <longli@microsoft.com>

Secondary process will get access to vmbus device and this UIO fd for
signaling hyperv host on channels without monitoring support.

Signed-off-by: Long Li <longli@microsoft.com>
---
 drivers/bus/vmbus/vmbus_common_uio.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/bus/vmbus/vmbus_common_uio.c b/drivers/bus/vmbus/vmbus_common_uio.c
index 4d4613513c..d55aee6537 100644
--- a/drivers/bus/vmbus/vmbus_common_uio.c
+++ b/drivers/bus/vmbus/vmbus_common_uio.c
@@ -86,8 +86,11 @@ vmbus_uio_map_secondary(struct rte_vmbus_device *dev)
 		return -1;
 	}
 
-	/* fd is not needed in secondary process, close it */
-	close(fd);
+	if (rte_intr_fd_set(dev->intr_handle, fd))
+		return -1;
+
+	if (rte_intr_type_set(dev->intr_handle, RTE_INTR_HANDLE_UIO_INTX))
+		return -1;
 
 	/* Create and map primary channel */
 	if (vmbus_chan_create(dev, dev->relid, 0,
@@ -256,7 +259,7 @@ vmbus_uio_unmap_resource(struct rte_vmbus_device *dev)
 	/* free uio resource */
 	rte_free(uio_res);
 
-	/* close fd if in primary process */
+	/* close fd */
 	if (rte_intr_fd_get(dev->intr_handle) >= 0)
 		close(rte_intr_fd_get(dev->intr_handle));
 
-- 
2.34.1