|
@@ -53,8 +53,6 @@ static int netvsc_init_recv_buf(struct hv_device *device);
|
|
|
|
|
|
static int netvsc_destroy_send_buf(struct netvsc_device *net_device);
|
|
|
|
|
|
-static int netvsc_destroy_recv_buf(struct netvsc_device *net_device);
|
|
|
-
|
|
|
static int netvsc_connect_vsp(struct hv_device *device);
|
|
|
|
|
|
static void netvsc_send_completion(struct hv_device *device,
|
|
@@ -159,6 +157,75 @@ static struct netvsc_device *release_inbound_net_device(
|
|
|
return net_device;
|
|
|
}
|
|
|
|
|
|
+static int netvsc_destroy_recv_buf(struct netvsc_device *net_device)
|
|
|
+{
|
|
|
+ struct nvsp_message *revoke_packet;
|
|
|
+ int ret = 0;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * If we got a section count, it means we received a
|
|
|
+ * SendReceiveBufferComplete msg (ie sent
|
|
|
+ * NvspMessage1TypeSendReceiveBuffer msg) therefore, we need
|
|
|
+ * to send a revoke msg here
|
|
|
+ */
|
|
|
+ if (net_device->recv_section_cnt) {
|
|
|
+ /* Send the revoke receive buffer */
|
|
|
+ revoke_packet = &net_device->revoke_packet;
|
|
|
+ memset(revoke_packet, 0, sizeof(struct nvsp_message));
|
|
|
+
|
|
|
+ revoke_packet->hdr.msg_type =
|
|
|
+ NVSP_MSG1_TYPE_REVOKE_RECV_BUF;
|
|
|
+ revoke_packet->msg.v1_msg.
|
|
|
+ revoke_recv_buf.id = NETVSC_RECEIVE_BUFFER_ID;
|
|
|
+
|
|
|
+ ret = vmbus_sendpacket(net_device->dev->channel,
|
|
|
+ revoke_packet,
|
|
|
+ sizeof(struct nvsp_message),
|
|
|
+ (unsigned long)revoke_packet,
|
|
|
+ VM_PKT_DATA_INBAND, 0);
|
|
|
+ /*
|
|
|
+ * If we failed here, we might as well return and
|
|
|
+ * have a leak rather than continue and a bugchk
|
|
|
+ */
|
|
|
+ if (ret != 0) {
|
|
|
+ dev_err(&net_device->dev->device, "unable to send "
|
|
|
+ "revoke receive buffer to netvsp");
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Teardown the gpadl on the vsp end */
|
|
|
+ if (net_device->recv_buf_gpadl_handle) {
|
|
|
+ ret = vmbus_teardown_gpadl(net_device->dev->channel,
|
|
|
+ net_device->recv_buf_gpadl_handle);
|
|
|
+
|
|
|
+ /* If we failed here, we might as well return and have a leak
|
|
|
+ * rather than continue and a bugchk
|
|
|
+ */
|
|
|
+ if (ret != 0) {
|
|
|
+ dev_err(&net_device->dev->device,
|
|
|
+ "unable to teardown receive buffer's gpadl");
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ net_device->recv_buf_gpadl_handle = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (net_device->recv_buf) {
|
|
|
+ /* Free up the receive buffer */
|
|
|
+ free_pages((unsigned long)net_device->recv_buf,
|
|
|
+ get_order(net_device->recv_buf_size));
|
|
|
+ net_device->recv_buf = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (net_device->recv_section) {
|
|
|
+ net_device->recv_section_cnt = 0;
|
|
|
+ kfree(net_device->recv_section);
|
|
|
+ net_device->recv_section = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
static int netvsc_init_recv_buf(struct hv_device *device)
|
|
|
{
|
|
|
int ret = 0;
|
|
@@ -369,73 +436,6 @@ exit:
|
|
|
return ret;
|
|
|
}
|
|
|
|
|
|
-static int netvsc_destroy_recv_buf(struct netvsc_device *net_device)
|
|
|
-{
|
|
|
- struct nvsp_message *revoke_packet;
|
|
|
- int ret = 0;
|
|
|
-
|
|
|
- /*
|
|
|
- * If we got a section count, it means we received a
|
|
|
- * SendReceiveBufferComplete msg (ie sent
|
|
|
- * NvspMessage1TypeSendReceiveBuffer msg) therefore, we need
|
|
|
- * to send a revoke msg here
|
|
|
- */
|
|
|
- if (net_device->recv_section_cnt) {
|
|
|
- /* Send the revoke receive buffer */
|
|
|
- revoke_packet = &net_device->revoke_packet;
|
|
|
- memset(revoke_packet, 0, sizeof(struct nvsp_message));
|
|
|
-
|
|
|
- revoke_packet->hdr.msg_type =
|
|
|
- NVSP_MSG1_TYPE_REVOKE_RECV_BUF;
|
|
|
- revoke_packet->msg.v1_msg.
|
|
|
- revoke_recv_buf.id = NETVSC_RECEIVE_BUFFER_ID;
|
|
|
-
|
|
|
- ret = vmbus_sendpacket(net_device->dev->channel,
|
|
|
- revoke_packet,
|
|
|
- sizeof(struct nvsp_message),
|
|
|
- (unsigned long)revoke_packet,
|
|
|
- VM_PKT_DATA_INBAND, 0);
|
|
|
- /*
|
|
|
- * If we failed here, we might as well return and
|
|
|
- * have a leak rather than continue and a bugchk
|
|
|
- */
|
|
|
- if (ret != 0) {
|
|
|
- dev_err(&net_device->dev->device, "unable to send "
|
|
|
- "revoke receive buffer to netvsp");
|
|
|
- return -1;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* Teardown the gpadl on the vsp end */
|
|
|
- if (net_device->recv_buf_gpadl_handle) {
|
|
|
- ret = vmbus_teardown_gpadl(net_device->dev->channel,
|
|
|
- net_device->recv_buf_gpadl_handle);
|
|
|
-
|
|
|
- /* If we failed here, we might as well return and have a leak rather than continue and a bugchk */
|
|
|
- if (ret != 0) {
|
|
|
- dev_err(&net_device->dev->device,
|
|
|
- "unable to teardown receive buffer's gpadl");
|
|
|
- return -1;
|
|
|
- }
|
|
|
- net_device->recv_buf_gpadl_handle = 0;
|
|
|
- }
|
|
|
-
|
|
|
- if (net_device->recv_buf) {
|
|
|
- /* Free up the receive buffer */
|
|
|
- free_pages((unsigned long)net_device->recv_buf,
|
|
|
- get_order(net_device->recv_buf_size));
|
|
|
- net_device->recv_buf = NULL;
|
|
|
- }
|
|
|
-
|
|
|
- if (net_device->recv_section) {
|
|
|
- net_device->recv_section_cnt = 0;
|
|
|
- kfree(net_device->recv_section);
|
|
|
- net_device->recv_section = NULL;
|
|
|
- }
|
|
|
-
|
|
|
- return ret;
|
|
|
-}
|
|
|
-
|
|
|
static int netvsc_destroy_send_buf(struct netvsc_device *net_device)
|
|
|
{
|
|
|
struct nvsp_message *revoke_packet;
|