Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1 | /* |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 2 | * Copyright (c) 2009, Microsoft Corporation. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms and conditions of the GNU General Public License, |
| 6 | * version 2, as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
| 15 | * Place - Suite 330, Boston, MA 02111-1307 USA. |
| 16 | * |
| 17 | * Authors: |
Haiyang Zhang | d0e94d1 | 2009-11-23 17:00:22 +0000 | [diff] [blame] | 18 | * Haiyang Zhang <haiyangz@microsoft.com> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 19 | * Hank Janssen <hjanssen@microsoft.com> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 20 | */ |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 21 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 22 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 23 | #include <linux/init.h> |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/highmem.h> |
| 26 | #include <linux/device.h> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 27 | #include <linux/io.h> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 28 | #include <linux/delay.h> |
| 29 | #include <linux/netdevice.h> |
| 30 | #include <linux/inetdevice.h> |
| 31 | #include <linux/etherdevice.h> |
| 32 | #include <linux/skbuff.h> |
| 33 | #include <linux/in.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 34 | #include <linux/slab.h> |
K. Y. Srinivasan | 06e719d | 2010-05-07 17:52:17 -0600 | [diff] [blame] | 35 | #include <linux/dmi.h> |
| 36 | #include <linux/pci.h> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 37 | #include <net/arp.h> |
| 38 | #include <net/route.h> |
| 39 | #include <net/sock.h> |
| 40 | #include <net/pkt_sched.h> |
K. Y. Srinivasan | 3f335ea | 2011-05-12 19:34:15 -0700 | [diff] [blame] | 41 | |
| 42 | #include "hyperv.h" |
K. Y. Srinivasan | 5ca7252 | 2011-05-12 19:34:37 -0700 | [diff] [blame] | 43 | #include "hyperv_net.h" |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 44 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 45 | struct net_device_context { |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 46 | /* point back to our device context */ |
K. Y. Srinivasan | 6bad88da | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 47 | struct hv_device *device_ctx; |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 48 | unsigned long avail; |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 49 | struct work_struct work; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 50 | }; |
| 51 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 52 | |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 53 | #define PACKET_PAGES_LOWATER 8 |
| 54 | /* Need this many pages to handle worst case fragmented packet */ |
| 55 | #define PACKET_PAGES_HIWATER (MAX_SKB_FRAGS + 2) |
| 56 | |
Hank Janssen | 99c8da0 | 2010-10-12 10:45:23 -0700 | [diff] [blame] | 57 | static int ring_size = 128; |
Stephen Hemminger | 450d7a4 | 2010-05-04 09:58:53 -0700 | [diff] [blame] | 58 | module_param(ring_size, int, S_IRUGO); |
| 59 | MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 60 | |
Brandon Philips | 0ff36f69 | 2010-11-15 11:55:33 -0800 | [diff] [blame] | 61 | /* no-op so the netdev core doesn't return -EINVAL when modifying the the |
| 62 | * multicast address list in SIOCADDMULTI. hv is setup to get all multicast |
| 63 | * when it calls RndisFilterOnOpen() */ |
Greg Kroah-Hartman | 4e9bfef | 2009-07-15 12:45:20 -0700 | [diff] [blame] | 64 | static void netvsc_set_multicast_list(struct net_device *net) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 65 | { |
| 66 | } |
| 67 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 68 | static int netvsc_open(struct net_device *net) |
| 69 | { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 70 | struct net_device_context *net_device_ctx = netdev_priv(net); |
K. Y. Srinivasan | 6bad88da | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 71 | struct hv_device *device_obj = net_device_ctx->device_ctx; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 72 | int ret = 0; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 73 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 74 | if (netif_carrier_ok(net)) { |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 75 | /* Open up the device */ |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 76 | ret = rndis_filter_open(device_obj); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 77 | if (ret != 0) { |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 78 | netdev_err(net, "unable to open device (ret %d).\n", |
| 79 | ret); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 80 | return ret; |
| 81 | } |
| 82 | |
| 83 | netif_start_queue(net); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 84 | } else { |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 85 | netdev_err(net, "unable to open device...link is down.\n"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 86 | } |
| 87 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 88 | return ret; |
| 89 | } |
| 90 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 91 | static int netvsc_close(struct net_device *net) |
| 92 | { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 93 | struct net_device_context *net_device_ctx = netdev_priv(net); |
K. Y. Srinivasan | 6bad88da | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 94 | struct hv_device *device_obj = net_device_ctx->device_ctx; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 95 | int ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 96 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 97 | netif_stop_queue(net); |
| 98 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 99 | ret = rndis_filter_close(device_obj); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 100 | if (ret != 0) |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 101 | netdev_err(net, "unable to close device (ret %d).\n", ret); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 102 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 103 | return ret; |
| 104 | } |
| 105 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 106 | static void netvsc_xmit_completion(void *context) |
| 107 | { |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 108 | struct hv_netvsc_packet *packet = (struct hv_netvsc_packet *)context; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 109 | struct sk_buff *skb = (struct sk_buff *) |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 110 | (unsigned long)packet->completion.send.send_completion_tid; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 111 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 112 | kfree(packet); |
| 113 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 114 | if (skb) { |
Stephen Hemminger | 7880fc5 | 2010-05-04 09:58:52 -0700 | [diff] [blame] | 115 | struct net_device *net = skb->dev; |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 116 | struct net_device_context *net_device_ctx = netdev_priv(net); |
| 117 | unsigned int num_pages = skb_shinfo(skb)->nr_frags + 2; |
| 118 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 119 | dev_kfree_skb_any(skb); |
| 120 | |
Timo von Holtz | 581de3b | 2011-02-08 15:55:49 +0100 | [diff] [blame] | 121 | net_device_ctx->avail += num_pages; |
| 122 | if (net_device_ctx->avail >= PACKET_PAGES_HIWATER) |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 123 | netif_wake_queue(net); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 124 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 125 | } |
| 126 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 127 | static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 128 | { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 129 | struct net_device_context *net_device_ctx = netdev_priv(net); |
K. Y. Srinivasan | 779b4d1 | 2011-04-26 09:20:22 -0700 | [diff] [blame] | 130 | struct netvsc_driver *net_drv_obj = |
| 131 | drv_to_netvscdrv(net_device_ctx->device_ctx->device.driver); |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 132 | struct hv_netvsc_packet *packet; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 133 | int ret; |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 134 | unsigned int i, num_pages; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 135 | |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 136 | /* Add 1 for skb->data and additional one for RNDIS */ |
| 137 | num_pages = skb_shinfo(skb)->nr_frags + 1 + 1; |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 138 | if (num_pages > net_device_ctx->avail) |
| 139 | return NETDEV_TX_BUSY; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 140 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 141 | /* Allocate a netvsc packet based on # of frags. */ |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 142 | packet = kzalloc(sizeof(struct hv_netvsc_packet) + |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 143 | (num_pages * sizeof(struct hv_page_buffer)) + |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 144 | net_drv_obj->req_ext_size, GFP_ATOMIC); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 145 | if (!packet) { |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 146 | /* out of memory, silently drop packet */ |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 147 | netdev_err(net, "unable to allocate hv_netvsc_packet\n"); |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 148 | |
| 149 | dev_kfree_skb(skb); |
| 150 | net->stats.tx_dropped++; |
| 151 | return NETDEV_TX_OK; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 152 | } |
| 153 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 154 | packet->extension = (void *)(unsigned long)packet + |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 155 | sizeof(struct hv_netvsc_packet) + |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 156 | (num_pages * sizeof(struct hv_page_buffer)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 157 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 158 | /* Setup the rndis header */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 159 | packet->page_buf_cnt = num_pages; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 160 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 161 | /* TODO: Flush all write buffers/ memory fence ??? */ |
| 162 | /* wmb(); */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 163 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 164 | /* Initialize it from the skb */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 165 | packet->total_data_buflen = skb->len; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 166 | |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 167 | /* Start filling in the page buffers starting after RNDIS buffer. */ |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 168 | packet->page_buf[1].pfn = virt_to_phys(skb->data) >> PAGE_SHIFT; |
| 169 | packet->page_buf[1].offset |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 170 | = (unsigned long)skb->data & (PAGE_SIZE - 1); |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 171 | packet->page_buf[1].len = skb_headlen(skb); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 172 | |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 173 | /* Additional fragments are after SKB data */ |
| 174 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 175 | skb_frag_t *f = &skb_shinfo(skb)->frags[i]; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 176 | |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 177 | packet->page_buf[i+2].pfn = page_to_pfn(f->page); |
| 178 | packet->page_buf[i+2].offset = f->page_offset; |
| 179 | packet->page_buf[i+2].len = f->size; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 180 | } |
| 181 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 182 | /* Set the completion routine */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 183 | packet->completion.send.send_completion = netvsc_xmit_completion; |
| 184 | packet->completion.send.send_completion_ctx = packet; |
| 185 | packet->completion.send.send_completion_tid = (unsigned long)skb; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 186 | |
K. Y. Srinivasan | 6bad88da | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 187 | ret = net_drv_obj->send(net_device_ctx->device_ctx, |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 188 | packet); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 189 | if (ret == 0) { |
Stephen Hemminger | b852fdc | 2010-03-09 17:42:33 -0800 | [diff] [blame] | 190 | net->stats.tx_bytes += skb->len; |
| 191 | net->stats.tx_packets++; |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 192 | |
Timo von Holtz | 581de3b | 2011-02-08 15:55:49 +0100 | [diff] [blame] | 193 | net_device_ctx->avail -= num_pages; |
| 194 | if (net_device_ctx->avail < PACKET_PAGES_LOWATER) |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 195 | netif_stop_queue(net); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 196 | } else { |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 197 | /* we are shutting down or bus overloaded, just drop packet */ |
Stephen Hemminger | b852fdc | 2010-03-09 17:42:33 -0800 | [diff] [blame] | 198 | net->stats.tx_dropped++; |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 199 | netvsc_xmit_completion(packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 200 | } |
| 201 | |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 202 | return NETDEV_TX_OK; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 203 | } |
| 204 | |
Hank Janssen | 3e18951 | 2010-03-04 22:11:00 +0000 | [diff] [blame] | 205 | /* |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 206 | * netvsc_linkstatus_callback - Link up/down notification |
| 207 | */ |
K. Y. Srinivasan | 90ef117 | 2011-05-12 19:34:50 -0700 | [diff] [blame] | 208 | void netvsc_linkstatus_callback(struct hv_device *device_obj, |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 209 | unsigned int status) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 210 | { |
K. Y. Srinivasan | 6bad88da | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 211 | struct net_device *net = dev_get_drvdata(&device_obj->device); |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 212 | struct net_device_context *ndev_ctx; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 213 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 214 | if (!net) { |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 215 | netdev_err(net, "got link status but net device " |
| 216 | "not initialized yet\n"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 217 | return; |
| 218 | } |
| 219 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 220 | if (status == 1) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 221 | netif_carrier_on(net); |
| 222 | netif_wake_queue(net); |
Haiyang Zhang | 7c161d0 | 2011-02-02 13:42:58 -0800 | [diff] [blame] | 223 | netif_notify_peers(net); |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 224 | ndev_ctx = netdev_priv(net); |
| 225 | schedule_work(&ndev_ctx->work); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 226 | } else { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 227 | netif_carrier_off(net); |
| 228 | netif_stop_queue(net); |
| 229 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 230 | } |
| 231 | |
Hank Janssen | 3e18951 | 2010-03-04 22:11:00 +0000 | [diff] [blame] | 232 | /* |
| 233 | * netvsc_recv_callback - Callback when we receive a packet from the |
| 234 | * "wire" on the specified device. |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 235 | */ |
K. Y. Srinivasan | f79adf8 | 2011-05-12 19:34:51 -0700 | [diff] [blame^] | 236 | int netvsc_recv_callback(struct hv_device *device_obj, |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 237 | struct hv_netvsc_packet *packet) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 238 | { |
K. Y. Srinivasan | 6bad88da | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 239 | struct net_device *net = dev_get_drvdata(&device_obj->device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 240 | struct sk_buff *skb; |
| 241 | void *data; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 242 | int i; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 243 | unsigned long flags; |
| 244 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 245 | if (!net) { |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 246 | netdev_err(net, "got receive callback but net device" |
| 247 | " not initialized yet\n"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 248 | return 0; |
| 249 | } |
| 250 | |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 251 | /* Allocate a skb - TODO direct I/O to pages? */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 252 | skb = netdev_alloc_skb_ip_align(net, packet->total_data_buflen); |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 253 | if (unlikely(!skb)) { |
| 254 | ++net->stats.rx_dropped; |
| 255 | return 0; |
| 256 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 257 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 258 | /* for kmap_atomic */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 259 | local_irq_save(flags); |
| 260 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 261 | /* |
| 262 | * Copy to skb. This copy is needed here since the memory pointed by |
| 263 | * hv_netvsc_packet cannot be deallocated |
| 264 | */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 265 | for (i = 0; i < packet->page_buf_cnt; i++) { |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 266 | data = kmap_atomic(pfn_to_page(packet->page_buf[i].pfn), |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 267 | KM_IRQ1); |
| 268 | data = (void *)(unsigned long)data + |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 269 | packet->page_buf[i].offset; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 270 | |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 271 | memcpy(skb_put(skb, packet->page_buf[i].len), data, |
| 272 | packet->page_buf[i].len); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 273 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 274 | kunmap_atomic((void *)((unsigned long)data - |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 275 | packet->page_buf[i].offset), KM_IRQ1); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | local_irq_restore(flags); |
| 279 | |
| 280 | skb->protocol = eth_type_trans(skb, net); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 281 | skb->ip_summed = CHECKSUM_NONE; |
| 282 | |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 283 | net->stats.rx_packets++; |
| 284 | net->stats.rx_bytes += skb->len; |
| 285 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 286 | /* |
| 287 | * Pass the skb back up. Network stack will deallocate the skb when it |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 288 | * is done. |
| 289 | * TODO - use NAPI? |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 290 | */ |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 291 | netif_rx(skb); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 292 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 293 | return 0; |
| 294 | } |
| 295 | |
Stephen Hemminger | f82f4ad | 2010-05-04 09:58:57 -0700 | [diff] [blame] | 296 | static void netvsc_get_drvinfo(struct net_device *net, |
| 297 | struct ethtool_drvinfo *info) |
| 298 | { |
| 299 | strcpy(info->driver, "hv_netvsc"); |
| 300 | strcpy(info->version, HV_DRV_VERSION); |
| 301 | strcpy(info->fw_version, "N/A"); |
| 302 | } |
| 303 | |
| 304 | static const struct ethtool_ops ethtool_ops = { |
| 305 | .get_drvinfo = netvsc_get_drvinfo, |
Stephen Hemminger | f82f4ad | 2010-05-04 09:58:57 -0700 | [diff] [blame] | 306 | .get_link = ethtool_op_get_link, |
| 307 | }; |
| 308 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 309 | static const struct net_device_ops device_ops = { |
| 310 | .ndo_open = netvsc_open, |
| 311 | .ndo_stop = netvsc_close, |
| 312 | .ndo_start_xmit = netvsc_start_xmit, |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 313 | .ndo_set_multicast_list = netvsc_set_multicast_list, |
Haiyang Zhang | b681b58 | 2010-08-03 19:15:31 +0000 | [diff] [blame] | 314 | .ndo_change_mtu = eth_change_mtu, |
| 315 | .ndo_validate_addr = eth_validate_addr, |
| 316 | .ndo_set_mac_address = eth_mac_addr, |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 317 | }; |
| 318 | |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 319 | /* |
| 320 | * Send GARP packet to network peers after migrations. |
| 321 | * After Quick Migration, the network is not immediately operational in the |
| 322 | * current context when receiving RNDIS_STATUS_MEDIA_CONNECT event. So, add |
| 323 | * another netif_notify_peers() into a scheduled work, otherwise GARP packet |
| 324 | * will not be sent after quick migration, and cause network disconnection. |
| 325 | */ |
| 326 | static void netvsc_send_garp(struct work_struct *w) |
| 327 | { |
| 328 | struct net_device_context *ndev_ctx; |
| 329 | struct net_device *net; |
| 330 | |
| 331 | msleep(20); |
| 332 | ndev_ctx = container_of(w, struct net_device_context, work); |
| 333 | net = dev_get_drvdata(&ndev_ctx->device_ctx->device); |
| 334 | netif_notify_peers(net); |
| 335 | } |
| 336 | |
| 337 | |
K. Y. Srinivasan | 9efd21e | 2011-04-29 13:45:10 -0700 | [diff] [blame] | 338 | static int netvsc_probe(struct hv_device *dev) |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 339 | { |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 340 | struct net_device *net = NULL; |
| 341 | struct net_device_context *net_device_ctx; |
| 342 | struct netvsc_device_info device_info; |
| 343 | int ret; |
| 344 | |
Stephen Hemminger | 546d9e1 | 2010-03-11 09:11:37 -0800 | [diff] [blame] | 345 | net = alloc_etherdev(sizeof(struct net_device_context)); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 346 | if (!net) |
| 347 | return -1; |
| 348 | |
| 349 | /* Set initial state */ |
| 350 | netif_carrier_off(net); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 351 | |
| 352 | net_device_ctx = netdev_priv(net); |
K. Y. Srinivasan | 9efd21e | 2011-04-29 13:45:10 -0700 | [diff] [blame] | 353 | net_device_ctx->device_ctx = dev; |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 354 | net_device_ctx->avail = ring_size; |
K. Y. Srinivasan | 9efd21e | 2011-04-29 13:45:10 -0700 | [diff] [blame] | 355 | dev_set_drvdata(&dev->device, net); |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 356 | INIT_WORK(&net_device_ctx->work, netvsc_send_garp); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 357 | |
| 358 | /* Notify the netvsc driver of the new device */ |
K. Y. Srinivasan | bc2d597 | 2011-05-10 07:54:59 -0700 | [diff] [blame] | 359 | ret = rndis_filte_device_add(dev, &device_info); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 360 | if (ret != 0) { |
| 361 | free_netdev(net); |
K. Y. Srinivasan | 9efd21e | 2011-04-29 13:45:10 -0700 | [diff] [blame] | 362 | dev_set_drvdata(&dev->device, NULL); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 363 | |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 364 | netdev_err(net, "unable to add netvsc device (ret %d)\n", ret); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 365 | return ret; |
| 366 | } |
| 367 | |
| 368 | /* |
| 369 | * If carrier is still off ie we did not get a link status callback, |
| 370 | * update it if necessary |
| 371 | */ |
| 372 | /* |
| 373 | * FIXME: We should use a atomic or test/set instead to avoid getting |
| 374 | * out of sync with the device's link status |
| 375 | */ |
| 376 | if (!netif_carrier_ok(net)) |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 377 | if (!device_info.link_state) |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 378 | netif_carrier_on(net); |
| 379 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 380 | memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 381 | |
| 382 | net->netdev_ops = &device_ops; |
| 383 | |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 384 | /* TODO: Add GSO and Checksum offload */ |
Michał Mirosław | 877a344 | 2011-04-19 12:43:20 +0200 | [diff] [blame] | 385 | net->hw_features = NETIF_F_SG; |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 386 | net->features = NETIF_F_SG; |
| 387 | |
Stephen Hemminger | f82f4ad | 2010-05-04 09:58:57 -0700 | [diff] [blame] | 388 | SET_ETHTOOL_OPS(net, ðtool_ops); |
K. Y. Srinivasan | 9efd21e | 2011-04-29 13:45:10 -0700 | [diff] [blame] | 389 | SET_NETDEV_DEV(net, &dev->device); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 390 | |
| 391 | ret = register_netdev(net); |
| 392 | if (ret != 0) { |
| 393 | /* Remove the device and release the resource */ |
K. Y. Srinivasan | 58de3fc | 2011-05-10 07:55:01 -0700 | [diff] [blame] | 394 | rndis_filter_device_remove(dev); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 395 | free_netdev(net); |
| 396 | } |
| 397 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 398 | return ret; |
| 399 | } |
| 400 | |
K. Y. Srinivasan | 415b023 | 2011-04-29 13:45:12 -0700 | [diff] [blame] | 401 | static int netvsc_remove(struct hv_device *dev) |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 402 | { |
K. Y. Srinivasan | 415b023 | 2011-04-29 13:45:12 -0700 | [diff] [blame] | 403 | struct net_device *net = dev_get_drvdata(&dev->device); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 404 | int ret; |
| 405 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 406 | if (net == NULL) { |
K. Y. Srinivasan | 415b023 | 2011-04-29 13:45:12 -0700 | [diff] [blame] | 407 | dev_err(&dev->device, "No net device to remove\n"); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 408 | return 0; |
| 409 | } |
| 410 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 411 | /* Stop outbound asap */ |
| 412 | netif_stop_queue(net); |
| 413 | /* netif_carrier_off(net); */ |
| 414 | |
| 415 | unregister_netdev(net); |
| 416 | |
| 417 | /* |
| 418 | * Call to the vsc driver to let it know that the device is being |
| 419 | * removed |
| 420 | */ |
K. Y. Srinivasan | 58de3fc | 2011-05-10 07:55:01 -0700 | [diff] [blame] | 421 | ret = rndis_filter_device_remove(dev); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 422 | if (ret != 0) { |
| 423 | /* TODO: */ |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 424 | netdev_err(net, "unable to remove vsc device (ret %d)\n", ret); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 425 | } |
| 426 | |
| 427 | free_netdev(net); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 428 | return ret; |
| 429 | } |
| 430 | |
K. Y. Srinivasan | f1542a6 | 2011-05-10 07:55:16 -0700 | [diff] [blame] | 431 | /* The one and only one */ |
K. Y. Srinivasan | d489097 | 2011-05-10 07:55:17 -0700 | [diff] [blame] | 432 | static struct netvsc_driver netvsc_drv = { |
| 433 | .base.probe = netvsc_probe, |
| 434 | .base.remove = netvsc_remove, |
| 435 | }; |
K. Y. Srinivasan | f1542a6 | 2011-05-10 07:55:16 -0700 | [diff] [blame] | 436 | |
Greg Kroah-Hartman | bd1de70 | 2009-07-29 09:04:51 -0700 | [diff] [blame] | 437 | static void netvsc_drv_exit(void) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 438 | { |
K. Y. Srinivasan | a881fdd | 2011-05-12 19:34:47 -0700 | [diff] [blame] | 439 | vmbus_child_driver_unregister(&netvsc_drv.base.driver); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 440 | } |
| 441 | |
Greg Kroah-Hartman | 21707be | 2009-09-02 11:53:59 -0700 | [diff] [blame] | 442 | static int netvsc_drv_init(int (*drv_init)(struct hv_driver *drv)) |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 443 | { |
K. Y. Srinivasan | f752e9b | 2011-05-10 07:55:15 -0700 | [diff] [blame] | 444 | struct netvsc_driver *net_drv_obj = &netvsc_drv; |
| 445 | struct hv_driver *drv = &netvsc_drv.base; |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 446 | int ret; |
| 447 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 448 | net_drv_obj->ring_buf_size = ring_size * PAGE_SIZE; |
| 449 | net_drv_obj->recv_cb = netvsc_recv_callback; |
| 450 | net_drv_obj->link_status_change = netvsc_linkstatus_callback; |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 451 | |
| 452 | /* Callback to client driver to complete the initialization */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 453 | drv_init(&net_drv_obj->base); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 454 | |
K. Y. Srinivasan | 150f939 | 2011-03-07 13:32:31 -0800 | [diff] [blame] | 455 | drv->driver.name = net_drv_obj->base.name; |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 456 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 457 | /* The driver belongs to vmbus */ |
K. Y. Srinivasan | 150f939 | 2011-03-07 13:32:31 -0800 | [diff] [blame] | 458 | ret = vmbus_child_driver_register(&drv->driver); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 459 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 460 | return ret; |
| 461 | } |
| 462 | |
K. Y. Srinivasan | 06e719d | 2010-05-07 17:52:17 -0600 | [diff] [blame] | 463 | static const struct dmi_system_id __initconst |
| 464 | hv_netvsc_dmi_table[] __maybe_unused = { |
| 465 | { |
| 466 | .ident = "Hyper-V", |
| 467 | .matches = { |
| 468 | DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"), |
| 469 | DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"), |
| 470 | DMI_MATCH(DMI_BOARD_NAME, "Virtual Machine"), |
| 471 | }, |
| 472 | }, |
| 473 | { }, |
| 474 | }; |
| 475 | MODULE_DEVICE_TABLE(dmi, hv_netvsc_dmi_table); |
| 476 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 477 | static int __init netvsc_init(void) |
| 478 | { |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 479 | pr_info("initializing...."); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 480 | |
K. Y. Srinivasan | 06e719d | 2010-05-07 17:52:17 -0600 | [diff] [blame] | 481 | if (!dmi_check_system(hv_netvsc_dmi_table)) |
| 482 | return -ENODEV; |
| 483 | |
Haiyang Zhang | 5a71ae3 | 2010-12-10 12:03:55 -0800 | [diff] [blame] | 484 | return netvsc_drv_init(netvsc_initialize); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 485 | } |
| 486 | |
| 487 | static void __exit netvsc_exit(void) |
| 488 | { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 489 | netvsc_drv_exit(); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 490 | } |
| 491 | |
K. Y. Srinivasan | 06e719d | 2010-05-07 17:52:17 -0600 | [diff] [blame] | 492 | static const struct pci_device_id __initconst |
| 493 | hv_netvsc_pci_table[] __maybe_unused = { |
| 494 | { PCI_DEVICE(0x1414, 0x5353) }, /* VGA compatible controller */ |
| 495 | { 0 } |
| 496 | }; |
| 497 | MODULE_DEVICE_TABLE(pci, hv_netvsc_pci_table); |
| 498 | |
Hank Janssen | 26c14cc | 2010-02-11 23:02:42 +0000 | [diff] [blame] | 499 | MODULE_LICENSE("GPL"); |
| 500 | MODULE_VERSION(HV_DRV_VERSION); |
Stephen Hemminger | 7880fc5 | 2010-05-04 09:58:52 -0700 | [diff] [blame] | 501 | MODULE_DESCRIPTION("Microsoft Hyper-V network driver"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 502 | |
| 503 | module_init(netvsc_init); |
| 504 | module_exit(netvsc_exit); |