Signed-off-by: Haiyang Zhang <haiya...@microsoft.com> Signed-off-by: K. Y. Srinivasan <k...@microsoft.com> --- drivers/staging/hv/netvsc.c | 130 +++++++++++++++++++++---------------------- 1 files changed, 64 insertions(+), 66 deletions(-)
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c index 8b2defd..75640ea 100644 --- a/drivers/staging/hv/netvsc.c +++ b/drivers/staging/hv/netvsc.c @@ -51,8 +51,6 @@ static int netvsc_init_send_buf(struct hv_device *device); static int netvsc_init_recv_buf(struct hv_device *device); -static int netvsc_destroy_send_buf(struct netvsc_device *net_device); - static int netvsc_connect_vsp(struct hv_device *device); static void netvsc_send_completion(struct hv_device *device, @@ -343,6 +341,70 @@ exit: return ret; } +static int netvsc_destroy_send_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->send_section_size) { + /* Send the revoke send buffer */ + revoke_packet = &net_device->revoke_packet; + memset(revoke_packet, 0, sizeof(struct nvsp_message)); + + revoke_packet->hdr.msg_type = + NVSP_MSG1_TYPE_REVOKE_SEND_BUF; + revoke_packet->msg.v1_msg. + revoke_send_buf.id = NETVSC_SEND_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 send buffer to netvsp"); + return -1; + } + } + + /* Teardown the gpadl on the vsp end */ + if (net_device->send_buf_gpadl_handle) { + ret = vmbus_teardown_gpadl(net_device->dev->channel, + net_device->send_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 send buffer's gpadl"); + return -1; + } + net_device->send_buf_gpadl_handle = 0; + } + + if (net_device->send_buf) { + /* Free up the receive buffer */ + free_pages((unsigned long)net_device->send_buf, + get_order(net_device->send_buf_size)); + net_device->send_buf = NULL; + } + + return ret; +} + static int netvsc_init_send_buf(struct hv_device *device) { int ret = 0; @@ -436,70 +498,6 @@ exit: return ret; } -static int netvsc_destroy_send_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->send_section_size) { - /* Send the revoke send buffer */ - revoke_packet = &net_device->revoke_packet; - memset(revoke_packet, 0, sizeof(struct nvsp_message)); - - revoke_packet->hdr.msg_type = - NVSP_MSG1_TYPE_REVOKE_SEND_BUF; - revoke_packet->msg.v1_msg. - revoke_send_buf.id = NETVSC_SEND_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 send buffer to netvsp"); - return -1; - } - } - - /* Teardown the gpadl on the vsp end */ - if (net_device->send_buf_gpadl_handle) { - ret = vmbus_teardown_gpadl(net_device->dev->channel, - net_device->send_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 send buffer's gpadl"); - return -1; - } - net_device->send_buf_gpadl_handle = 0; - } - - if (net_device->send_buf) { - /* Free up the receive buffer */ - free_pages((unsigned long)net_device->send_buf, - get_order(net_device->send_buf_size)); - net_device->send_buf = NULL; - } - - return ret; -} - static int netvsc_connect_vsp(struct hv_device *device) { -- 1.6.3.2 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/virtualization