diff options
Diffstat (limited to 'drivers/net/hyperv/netvsc.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index 9a0e9c6f1414..daddea2654ce 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -290,7 +290,7 @@ static int negotiate_nvsp_ver(struct hv_device *device, NVSP_STAT_SUCCESS) return -EINVAL; - if (nvsp_ver != NVSP_PROTOCOL_VERSION_2) + if (nvsp_ver == NVSP_PROTOCOL_VERSION_1) return 0; /* NVSPv2 only: Send NDIS config */ @@ -314,6 +314,9 @@ static int netvsc_connect_vsp(struct hv_device *device) struct nvsp_message *init_packet; int ndis_version; struct net_device *ndev; + u32 ver_list[] = { NVSP_PROTOCOL_VERSION_1, NVSP_PROTOCOL_VERSION_2, + NVSP_PROTOCOL_VERSION_4, NVSP_PROTOCOL_VERSION_5 }; + int i, num_ver = 4; /* number of different NVSP versions */ net_device = get_outbound_net_device(device); if (!net_device) @@ -323,13 +326,14 @@ static int netvsc_connect_vsp(struct hv_device *device) init_packet = &net_device->channel_init_pkt; /* Negotiate the latest NVSP protocol supported */ - if (negotiate_nvsp_ver(device, net_device, init_packet, - NVSP_PROTOCOL_VERSION_2) == 0) { - net_device->nvsp_version = NVSP_PROTOCOL_VERSION_2; - } else if (negotiate_nvsp_ver(device, net_device, init_packet, - NVSP_PROTOCOL_VERSION_1) == 0) { - net_device->nvsp_version = NVSP_PROTOCOL_VERSION_1; - } else { + for (i = num_ver - 1; i >= 0; i--) + if (negotiate_nvsp_ver(device, net_device, init_packet, + ver_list[i]) == 0) { + net_device->nvsp_version = ver_list[i]; + break; + } + + if (i < 0) { ret = -EPROTO; goto cleanup; } @@ -339,7 +343,10 @@ static int netvsc_connect_vsp(struct hv_device *device) /* Send the ndis version */ memset(init_packet, 0, sizeof(struct nvsp_message)); - ndis_version = 0x00050001; + if (net_device->nvsp_version <= NVSP_PROTOCOL_VERSION_4) + ndis_version = 0x00050001; + else + ndis_version = 0x0006001e; init_packet->hdr.msg_type = NVSP_MSG1_TYPE_SEND_NDIS_VER; init_packet->msg.v1_msg. @@ -358,6 +365,11 @@ static int netvsc_connect_vsp(struct hv_device *device) goto cleanup; /* Post the big receive buffer to NetVSP */ + if (net_device->nvsp_version <= NVSP_PROTOCOL_VERSION_2) + net_device->recv_buf_size = NETVSC_RECEIVE_BUFFER_SIZE_LEGACY; + else + net_device->recv_buf_size = NETVSC_RECEIVE_BUFFER_SIZE; + ret = netvsc_init_recv_buf(device); cleanup: @@ -891,7 +903,6 @@ int netvsc_device_add(struct hv_device *device, void *additional_info) ndev = net_device->ndev; /* Initialize the NetVSC channel extension */ - net_device->recv_buf_size = NETVSC_RECEIVE_BUFFER_SIZE; spin_lock_init(&net_device->recv_pkt_list_lock); INIT_LIST_HEAD(&net_device->recv_pkt_list); |