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> |
K. Y. Srinivasan | 9079ce6 | 2011-06-16 13:16:37 -0700 | [diff] [blame] | 24 | #include <linux/atomic.h> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 25 | #include <linux/module.h> |
| 26 | #include <linux/highmem.h> |
| 27 | #include <linux/device.h> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 28 | #include <linux/io.h> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 29 | #include <linux/delay.h> |
| 30 | #include <linux/netdevice.h> |
| 31 | #include <linux/inetdevice.h> |
| 32 | #include <linux/etherdevice.h> |
| 33 | #include <linux/skbuff.h> |
| 34 | #include <linux/in.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 35 | #include <linux/slab.h> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 36 | #include <net/arp.h> |
| 37 | #include <net/route.h> |
| 38 | #include <net/sock.h> |
| 39 | #include <net/pkt_sched.h> |
K. Y. Srinivasan | 3f335ea | 2011-05-12 19:34:15 -0700 | [diff] [blame] | 40 | |
K. Y. Srinivasan | 5ca7252 | 2011-05-12 19:34:37 -0700 | [diff] [blame] | 41 | #include "hyperv_net.h" |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 42 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 43 | struct net_device_context { |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 44 | /* point back to our device context */ |
K. Y. Srinivasan | 6bad88d | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 45 | struct hv_device *device_ctx; |
Haiyang Zhang | 122a5f6 | 2011-05-27 06:21:55 -0700 | [diff] [blame] | 46 | struct delayed_work dwork; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 47 | }; |
| 48 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 49 | |
Hank Janssen | 99c8da0 | 2010-10-12 10:45:23 -0700 | [diff] [blame] | 50 | static int ring_size = 128; |
Stephen Hemminger | 450d7a4 | 2010-05-04 09:58:53 -0700 | [diff] [blame] | 51 | module_param(ring_size, int, S_IRUGO); |
| 52 | MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 53 | |
Haiyang Zhang | d426b2e | 2011-11-30 07:19:08 -0800 | [diff] [blame] | 54 | struct set_multicast_work { |
| 55 | struct work_struct work; |
| 56 | struct net_device *net; |
| 57 | }; |
| 58 | |
| 59 | static void do_set_multicast(struct work_struct *w) |
| 60 | { |
| 61 | struct set_multicast_work *swk = |
| 62 | container_of(w, struct set_multicast_work, work); |
| 63 | struct net_device *net = swk->net; |
| 64 | |
| 65 | struct net_device_context *ndevctx = netdev_priv(net); |
| 66 | struct netvsc_device *nvdev; |
| 67 | struct rndis_device *rdev; |
| 68 | |
| 69 | nvdev = hv_get_drvdata(ndevctx->device_ctx); |
| 70 | if (nvdev == NULL) |
Wei Yongjun | c11bf1c | 2012-01-24 10:21:28 +0000 | [diff] [blame] | 71 | goto out; |
Haiyang Zhang | d426b2e | 2011-11-30 07:19:08 -0800 | [diff] [blame] | 72 | |
| 73 | rdev = nvdev->extension; |
| 74 | if (rdev == NULL) |
Wei Yongjun | c11bf1c | 2012-01-24 10:21:28 +0000 | [diff] [blame] | 75 | goto out; |
Haiyang Zhang | d426b2e | 2011-11-30 07:19:08 -0800 | [diff] [blame] | 76 | |
| 77 | if (net->flags & IFF_PROMISC) |
| 78 | rndis_filter_set_packet_filter(rdev, |
| 79 | NDIS_PACKET_TYPE_PROMISCUOUS); |
| 80 | else |
| 81 | rndis_filter_set_packet_filter(rdev, |
| 82 | NDIS_PACKET_TYPE_BROADCAST | |
| 83 | NDIS_PACKET_TYPE_ALL_MULTICAST | |
| 84 | NDIS_PACKET_TYPE_DIRECTED); |
| 85 | |
Wei Yongjun | c11bf1c | 2012-01-24 10:21:28 +0000 | [diff] [blame] | 86 | out: |
Haiyang Zhang | d426b2e | 2011-11-30 07:19:08 -0800 | [diff] [blame] | 87 | kfree(w); |
| 88 | } |
| 89 | |
Greg Kroah-Hartman | 4e9bfef | 2009-07-15 12:45:20 -0700 | [diff] [blame] | 90 | static void netvsc_set_multicast_list(struct net_device *net) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 91 | { |
Haiyang Zhang | d426b2e | 2011-11-30 07:19:08 -0800 | [diff] [blame] | 92 | struct set_multicast_work *swk = |
| 93 | kmalloc(sizeof(struct set_multicast_work), GFP_ATOMIC); |
| 94 | if (swk == NULL) |
| 95 | return; |
| 96 | |
| 97 | swk->net = net; |
| 98 | INIT_WORK(&swk->work, do_set_multicast); |
| 99 | schedule_work(&swk->work); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 100 | } |
| 101 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 102 | static int netvsc_open(struct net_device *net) |
| 103 | { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 104 | struct net_device_context *net_device_ctx = netdev_priv(net); |
K. Y. Srinivasan | 6bad88d | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 105 | struct hv_device *device_obj = net_device_ctx->device_ctx; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 106 | int ret = 0; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 107 | |
Haiyang Zhang | d515d0f | 2011-09-28 13:24:15 -0700 | [diff] [blame] | 108 | /* Open up the device */ |
| 109 | ret = rndis_filter_open(device_obj); |
| 110 | if (ret != 0) { |
| 111 | netdev_err(net, "unable to open device (ret %d).\n", ret); |
| 112 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 113 | } |
| 114 | |
Haiyang Zhang | d515d0f | 2011-09-28 13:24:15 -0700 | [diff] [blame] | 115 | netif_start_queue(net); |
| 116 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 117 | return ret; |
| 118 | } |
| 119 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 120 | static int netvsc_close(struct net_device *net) |
| 121 | { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 122 | struct net_device_context *net_device_ctx = netdev_priv(net); |
K. Y. Srinivasan | 6bad88d | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 123 | struct hv_device *device_obj = net_device_ctx->device_ctx; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 124 | int ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 125 | |
Haiyang Zhang | 0a28253 | 2012-02-02 07:17:59 +0000 | [diff] [blame] | 126 | netif_tx_disable(net); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 127 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 128 | ret = rndis_filter_close(device_obj); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 129 | if (ret != 0) |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 130 | netdev_err(net, "unable to close device (ret %d).\n", ret); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 131 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 132 | return ret; |
| 133 | } |
| 134 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 135 | static void netvsc_xmit_completion(void *context) |
| 136 | { |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 137 | struct hv_netvsc_packet *packet = (struct hv_netvsc_packet *)context; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 138 | struct sk_buff *skb = (struct sk_buff *) |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 139 | (unsigned long)packet->completion.send.send_completion_tid; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 140 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 141 | kfree(packet); |
| 142 | |
Haiyang Zhang | 1d06825 | 2011-12-02 11:56:25 -0800 | [diff] [blame] | 143 | if (skb) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 144 | dev_kfree_skb_any(skb); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 145 | } |
| 146 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 147 | 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] | 148 | { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 149 | struct net_device_context *net_device_ctx = netdev_priv(net); |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 150 | struct hv_netvsc_packet *packet; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 151 | int ret; |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 152 | unsigned int i, num_pages, npg_data; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 153 | |
Haiyang Zhang | c31c151 | 2012-02-02 07:18:00 +0000 | [diff] [blame^] | 154 | /* Add multipages for skb->data and additional 2 for RNDIS */ |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 155 | npg_data = (((unsigned long)skb->data + skb_headlen(skb) - 1) |
| 156 | >> PAGE_SHIFT) - ((unsigned long)skb->data >> PAGE_SHIFT) + 1; |
Haiyang Zhang | c31c151 | 2012-02-02 07:18:00 +0000 | [diff] [blame^] | 157 | num_pages = skb_shinfo(skb)->nr_frags + npg_data + 2; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 158 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 159 | /* Allocate a netvsc packet based on # of frags. */ |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 160 | packet = kzalloc(sizeof(struct hv_netvsc_packet) + |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 161 | (num_pages * sizeof(struct hv_page_buffer)) + |
K. Y. Srinivasan | f8ba8c7 | 2011-05-12 19:35:01 -0700 | [diff] [blame] | 162 | sizeof(struct rndis_filter_packet), GFP_ATOMIC); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 163 | if (!packet) { |
Haiyang Zhang | bf76937 | 2011-09-01 12:19:46 -0700 | [diff] [blame] | 164 | /* out of memory, drop packet */ |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 165 | netdev_err(net, "unable to allocate hv_netvsc_packet\n"); |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 166 | |
| 167 | dev_kfree_skb(skb); |
| 168 | net->stats.tx_dropped++; |
Haiyang Zhang | bf76937 | 2011-09-01 12:19:46 -0700 | [diff] [blame] | 169 | return NETDEV_TX_BUSY; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 170 | } |
| 171 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 172 | packet->extension = (void *)(unsigned long)packet + |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 173 | sizeof(struct hv_netvsc_packet) + |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 174 | (num_pages * sizeof(struct hv_page_buffer)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 175 | |
Haiyang Zhang | c31c151 | 2012-02-02 07:18:00 +0000 | [diff] [blame^] | 176 | /* If the rndis msg goes beyond 1 page, we will add 1 later */ |
| 177 | packet->page_buf_cnt = num_pages - 1; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 178 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 179 | /* Initialize it from the skb */ |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 180 | packet->total_data_buflen = skb->len; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 181 | |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 182 | /* Start filling in the page buffers starting after RNDIS buffer. */ |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 183 | packet->page_buf[1].pfn = virt_to_phys(skb->data) >> PAGE_SHIFT; |
| 184 | packet->page_buf[1].offset |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 185 | = (unsigned long)skb->data & (PAGE_SIZE - 1); |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 186 | if (npg_data == 1) |
| 187 | packet->page_buf[1].len = skb_headlen(skb); |
| 188 | else |
| 189 | packet->page_buf[1].len = PAGE_SIZE |
| 190 | - packet->page_buf[1].offset; |
| 191 | |
| 192 | for (i = 2; i <= npg_data; i++) { |
| 193 | packet->page_buf[i].pfn = virt_to_phys(skb->data |
| 194 | + PAGE_SIZE * (i-1)) >> PAGE_SHIFT; |
| 195 | packet->page_buf[i].offset = 0; |
| 196 | packet->page_buf[i].len = PAGE_SIZE; |
| 197 | } |
| 198 | if (npg_data > 1) |
| 199 | packet->page_buf[npg_data].len = (((unsigned long)skb->data |
| 200 | + skb_headlen(skb) - 1) & (PAGE_SIZE - 1)) + 1; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 201 | |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 202 | /* Additional fragments are after SKB data */ |
| 203 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 204 | const skb_frag_t *f = &skb_shinfo(skb)->frags[i]; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 205 | |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 206 | packet->page_buf[i+npg_data+1].pfn = |
| 207 | page_to_pfn(skb_frag_page(f)); |
| 208 | packet->page_buf[i+npg_data+1].offset = f->page_offset; |
| 209 | packet->page_buf[i+npg_data+1].len = skb_frag_size(f); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 210 | } |
| 211 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 212 | /* Set the completion routine */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 213 | packet->completion.send.send_completion = netvsc_xmit_completion; |
| 214 | packet->completion.send.send_completion_ctx = packet; |
| 215 | packet->completion.send.send_completion_tid = (unsigned long)skb; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 216 | |
K. Y. Srinivasan | 55acb69 | 2011-05-12 19:34:54 -0700 | [diff] [blame] | 217 | ret = rndis_filter_send(net_device_ctx->device_ctx, |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 218 | packet); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 219 | if (ret == 0) { |
Stephen Hemminger | b852fdc | 2010-03-09 17:42:33 -0800 | [diff] [blame] | 220 | net->stats.tx_bytes += skb->len; |
| 221 | net->stats.tx_packets++; |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 222 | } else { |
Stephen Hemminger | b220f5f | 2010-05-04 09:58:56 -0700 | [diff] [blame] | 223 | /* we are shutting down or bus overloaded, just drop packet */ |
Stephen Hemminger | b852fdc | 2010-03-09 17:42:33 -0800 | [diff] [blame] | 224 | net->stats.tx_dropped++; |
Haiyang Zhang | 8a5f9ed | 2011-09-01 12:19:45 -0700 | [diff] [blame] | 225 | kfree(packet); |
| 226 | dev_kfree_skb_any(skb); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 227 | } |
| 228 | |
Haiyang Zhang | bf76937 | 2011-09-01 12:19:46 -0700 | [diff] [blame] | 229 | return ret ? NETDEV_TX_BUSY : NETDEV_TX_OK; |
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 | /* |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 233 | * netvsc_linkstatus_callback - Link up/down notification |
| 234 | */ |
K. Y. Srinivasan | 90ef117 | 2011-05-12 19:34:50 -0700 | [diff] [blame] | 235 | void netvsc_linkstatus_callback(struct hv_device *device_obj, |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 236 | unsigned int status) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 237 | { |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 238 | struct net_device *net; |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 239 | struct net_device_context *ndev_ctx; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 240 | struct netvsc_device *net_device; |
| 241 | |
| 242 | net_device = hv_get_drvdata(device_obj); |
| 243 | net = net_device->ndev; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 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 link status but net device " |
| 247 | "not initialized yet\n"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 248 | return; |
| 249 | } |
| 250 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 251 | if (status == 1) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 252 | netif_carrier_on(net); |
| 253 | netif_wake_queue(net); |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 254 | ndev_ctx = netdev_priv(net); |
Haiyang Zhang | c4b6a2e | 2011-09-01 12:19:42 -0700 | [diff] [blame] | 255 | schedule_delayed_work(&ndev_ctx->dwork, 0); |
Haiyang Zhang | 122a5f6 | 2011-05-27 06:21:55 -0700 | [diff] [blame] | 256 | schedule_delayed_work(&ndev_ctx->dwork, msecs_to_jiffies(20)); |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 257 | } else { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 258 | netif_carrier_off(net); |
Haiyang Zhang | 0a28253 | 2012-02-02 07:17:59 +0000 | [diff] [blame] | 259 | netif_tx_disable(net); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 260 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 261 | } |
| 262 | |
Hank Janssen | 3e18951 | 2010-03-04 22:11:00 +0000 | [diff] [blame] | 263 | /* |
| 264 | * netvsc_recv_callback - Callback when we receive a packet from the |
| 265 | * "wire" on the specified device. |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 266 | */ |
K. Y. Srinivasan | f79adf8 | 2011-05-12 19:34:51 -0700 | [diff] [blame] | 267 | int netvsc_recv_callback(struct hv_device *device_obj, |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 268 | struct hv_netvsc_packet *packet) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 269 | { |
K. Y. Srinivasan | 6bad88d | 2011-03-07 13:35:48 -0800 | [diff] [blame] | 270 | struct net_device *net = dev_get_drvdata(&device_obj->device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 271 | struct sk_buff *skb; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 272 | struct netvsc_device *net_device; |
| 273 | |
| 274 | net_device = hv_get_drvdata(device_obj); |
| 275 | net = net_device->ndev; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 276 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 277 | if (!net) { |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 278 | netdev_err(net, "got receive callback but net device" |
| 279 | " not initialized yet\n"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 280 | return 0; |
| 281 | } |
| 282 | |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 283 | /* Allocate a skb - TODO direct I/O to pages? */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 284 | skb = netdev_alloc_skb_ip_align(net, packet->total_data_buflen); |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 285 | if (unlikely(!skb)) { |
| 286 | ++net->stats.rx_dropped; |
| 287 | return 0; |
| 288 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 289 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 290 | /* |
| 291 | * Copy to skb. This copy is needed here since the memory pointed by |
| 292 | * hv_netvsc_packet cannot be deallocated |
| 293 | */ |
Haiyang Zhang | 4532634 | 2011-12-15 13:45:15 -0800 | [diff] [blame] | 294 | memcpy(skb_put(skb, packet->total_data_buflen), packet->data, |
| 295 | packet->total_data_buflen); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 296 | |
| 297 | skb->protocol = eth_type_trans(skb, net); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 298 | skb->ip_summed = CHECKSUM_NONE; |
| 299 | |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 300 | net->stats.rx_packets++; |
Wei Yongjun | 48c3883 | 2012-01-29 22:14:02 +0000 | [diff] [blame] | 301 | net->stats.rx_bytes += packet->total_data_buflen; |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 302 | |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 303 | /* |
| 304 | * 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] | 305 | * is done. |
| 306 | * TODO - use NAPI? |
Greg Kroah-Hartman | 02fafbc | 2009-08-31 21:09:45 -0700 | [diff] [blame] | 307 | */ |
Stephen Hemminger | 9495c28 | 2010-03-09 17:42:17 -0800 | [diff] [blame] | 308 | netif_rx(skb); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 309 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 310 | return 0; |
| 311 | } |
| 312 | |
Stephen Hemminger | f82f4ad | 2010-05-04 09:58:57 -0700 | [diff] [blame] | 313 | static void netvsc_get_drvinfo(struct net_device *net, |
| 314 | struct ethtool_drvinfo *info) |
| 315 | { |
| 316 | strcpy(info->driver, "hv_netvsc"); |
| 317 | strcpy(info->version, HV_DRV_VERSION); |
| 318 | strcpy(info->fw_version, "N/A"); |
| 319 | } |
| 320 | |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 321 | static int netvsc_change_mtu(struct net_device *ndev, int mtu) |
| 322 | { |
| 323 | struct net_device_context *ndevctx = netdev_priv(ndev); |
| 324 | struct hv_device *hdev = ndevctx->device_ctx; |
| 325 | struct netvsc_device *nvdev = hv_get_drvdata(hdev); |
| 326 | struct netvsc_device_info device_info; |
| 327 | int limit = ETH_DATA_LEN; |
| 328 | |
| 329 | if (nvdev == NULL || nvdev->destroy) |
| 330 | return -ENODEV; |
| 331 | |
| 332 | if (nvdev->nvsp_version == NVSP_PROTOCOL_VERSION_2) |
| 333 | limit = NETVSC_MTU; |
| 334 | |
| 335 | if (mtu < 68 || mtu > limit) |
| 336 | return -EINVAL; |
| 337 | |
| 338 | nvdev->start_remove = true; |
| 339 | cancel_delayed_work_sync(&ndevctx->dwork); |
Haiyang Zhang | 0a28253 | 2012-02-02 07:17:59 +0000 | [diff] [blame] | 340 | netif_tx_disable(ndev); |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 341 | rndis_filter_device_remove(hdev); |
| 342 | |
| 343 | ndev->mtu = mtu; |
| 344 | |
| 345 | ndevctx->device_ctx = hdev; |
| 346 | hv_set_drvdata(hdev, ndev); |
| 347 | device_info.ring_size = ring_size; |
| 348 | rndis_filter_device_add(hdev, &device_info); |
| 349 | netif_wake_queue(ndev); |
| 350 | |
| 351 | return 0; |
| 352 | } |
| 353 | |
Stephen Hemminger | f82f4ad | 2010-05-04 09:58:57 -0700 | [diff] [blame] | 354 | static const struct ethtool_ops ethtool_ops = { |
| 355 | .get_drvinfo = netvsc_get_drvinfo, |
Stephen Hemminger | f82f4ad | 2010-05-04 09:58:57 -0700 | [diff] [blame] | 356 | .get_link = ethtool_op_get_link, |
| 357 | }; |
| 358 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 359 | static const struct net_device_ops device_ops = { |
| 360 | .ndo_open = netvsc_open, |
| 361 | .ndo_stop = netvsc_close, |
| 362 | .ndo_start_xmit = netvsc_start_xmit, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 363 | .ndo_set_rx_mode = netvsc_set_multicast_list, |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 364 | .ndo_change_mtu = netvsc_change_mtu, |
Haiyang Zhang | b681b58 | 2010-08-03 19:15:31 +0000 | [diff] [blame] | 365 | .ndo_validate_addr = eth_validate_addr, |
| 366 | .ndo_set_mac_address = eth_mac_addr, |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 367 | }; |
| 368 | |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 369 | /* |
| 370 | * Send GARP packet to network peers after migrations. |
| 371 | * After Quick Migration, the network is not immediately operational in the |
| 372 | * current context when receiving RNDIS_STATUS_MEDIA_CONNECT event. So, add |
Haiyang Zhang | 122a5f6 | 2011-05-27 06:21:55 -0700 | [diff] [blame] | 373 | * another netif_notify_peers() into a delayed work, otherwise GARP packet |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 374 | * will not be sent after quick migration, and cause network disconnection. |
| 375 | */ |
| 376 | static void netvsc_send_garp(struct work_struct *w) |
| 377 | { |
| 378 | struct net_device_context *ndev_ctx; |
| 379 | struct net_device *net; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 380 | struct netvsc_device *net_device; |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 381 | |
Haiyang Zhang | 122a5f6 | 2011-05-27 06:21:55 -0700 | [diff] [blame] | 382 | ndev_ctx = container_of(w, struct net_device_context, dwork.work); |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 383 | net_device = hv_get_drvdata(ndev_ctx->device_ctx); |
| 384 | net = net_device->ndev; |
Haiyang Zhang | c996edc | 2011-04-06 15:18:00 -0700 | [diff] [blame] | 385 | netif_notify_peers(net); |
| 386 | } |
| 387 | |
| 388 | |
K. Y. Srinivasan | 8494689 | 2011-09-13 10:59:38 -0700 | [diff] [blame] | 389 | static int netvsc_probe(struct hv_device *dev, |
| 390 | const struct hv_vmbus_device_id *dev_id) |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 391 | { |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 392 | struct net_device *net = NULL; |
| 393 | struct net_device_context *net_device_ctx; |
| 394 | struct netvsc_device_info device_info; |
| 395 | int ret; |
| 396 | |
Stephen Hemminger | 546d9e1 | 2010-03-11 09:11:37 -0800 | [diff] [blame] | 397 | net = alloc_etherdev(sizeof(struct net_device_context)); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 398 | if (!net) |
K. Y. Srinivasan | 51a805d | 2011-08-25 09:49:11 -0700 | [diff] [blame] | 399 | return -ENOMEM; |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 400 | |
| 401 | /* Set initial state */ |
| 402 | netif_carrier_off(net); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 403 | |
| 404 | net_device_ctx = netdev_priv(net); |
K. Y. Srinivasan | 9efd21e | 2011-04-29 13:45:10 -0700 | [diff] [blame] | 405 | net_device_ctx->device_ctx = dev; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 406 | hv_set_drvdata(dev, net); |
Haiyang Zhang | 122a5f6 | 2011-05-27 06:21:55 -0700 | [diff] [blame] | 407 | INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_send_garp); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 408 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 409 | net->netdev_ops = &device_ops; |
| 410 | |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 411 | /* TODO: Add GSO and Checksum offload */ |
Michał Mirosław | 877a344 | 2011-04-19 12:43:20 +0200 | [diff] [blame] | 412 | net->hw_features = NETIF_F_SG; |
Stephen Hemminger | 6048718 | 2010-05-04 09:58:55 -0700 | [diff] [blame] | 413 | net->features = NETIF_F_SG; |
| 414 | |
Stephen Hemminger | f82f4ad | 2010-05-04 09:58:57 -0700 | [diff] [blame] | 415 | SET_ETHTOOL_OPS(net, ðtool_ops); |
K. Y. Srinivasan | 9efd21e | 2011-04-29 13:45:10 -0700 | [diff] [blame] | 416 | SET_NETDEV_DEV(net, &dev->device); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 417 | |
| 418 | ret = register_netdev(net); |
| 419 | if (ret != 0) { |
Haiyang Zhang | 692e084 | 2011-09-01 12:19:43 -0700 | [diff] [blame] | 420 | pr_err("Unable to register netdev.\n"); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 421 | free_netdev(net); |
Haiyang Zhang | 692e084 | 2011-09-01 12:19:43 -0700 | [diff] [blame] | 422 | goto out; |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 423 | } |
| 424 | |
Haiyang Zhang | 692e084 | 2011-09-01 12:19:43 -0700 | [diff] [blame] | 425 | /* Notify the netvsc driver of the new device */ |
| 426 | device_info.ring_size = ring_size; |
| 427 | ret = rndis_filter_device_add(dev, &device_info); |
| 428 | if (ret != 0) { |
| 429 | netdev_err(net, "unable to add netvsc device (ret %d)\n", ret); |
| 430 | unregister_netdev(net); |
| 431 | free_netdev(net); |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 432 | hv_set_drvdata(dev, NULL); |
Haiyang Zhang | 692e084 | 2011-09-01 12:19:43 -0700 | [diff] [blame] | 433 | return ret; |
| 434 | } |
| 435 | memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN); |
| 436 | |
| 437 | netif_carrier_on(net); |
| 438 | |
| 439 | out: |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 440 | return ret; |
| 441 | } |
| 442 | |
K. Y. Srinivasan | 415b023 | 2011-04-29 13:45:12 -0700 | [diff] [blame] | 443 | static int netvsc_remove(struct hv_device *dev) |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 444 | { |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 445 | struct net_device *net; |
Haiyang Zhang | 122a5f6 | 2011-05-27 06:21:55 -0700 | [diff] [blame] | 446 | struct net_device_context *ndev_ctx; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 447 | struct netvsc_device *net_device; |
| 448 | |
| 449 | net_device = hv_get_drvdata(dev); |
| 450 | net = net_device->ndev; |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 451 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 452 | if (net == NULL) { |
K. Y. Srinivasan | 415b023 | 2011-04-29 13:45:12 -0700 | [diff] [blame] | 453 | dev_err(&dev->device, "No net device to remove\n"); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 454 | return 0; |
| 455 | } |
| 456 | |
Haiyang Zhang | 4d447c9 | 2011-12-15 13:45:17 -0800 | [diff] [blame] | 457 | net_device->start_remove = true; |
| 458 | |
Haiyang Zhang | 122a5f6 | 2011-05-27 06:21:55 -0700 | [diff] [blame] | 459 | ndev_ctx = netdev_priv(net); |
| 460 | cancel_delayed_work_sync(&ndev_ctx->dwork); |
| 461 | |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 462 | /* Stop outbound asap */ |
Haiyang Zhang | 0a28253 | 2012-02-02 07:17:59 +0000 | [diff] [blame] | 463 | netif_tx_disable(net); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 464 | |
| 465 | unregister_netdev(net); |
| 466 | |
| 467 | /* |
| 468 | * Call to the vsc driver to let it know that the device is being |
| 469 | * removed |
| 470 | */ |
Haiyang Zhang | df06bcf | 2011-05-23 09:03:47 -0700 | [diff] [blame] | 471 | rndis_filter_device_remove(dev); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 472 | |
| 473 | free_netdev(net); |
Haiyang Zhang | df06bcf | 2011-05-23 09:03:47 -0700 | [diff] [blame] | 474 | return 0; |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 475 | } |
| 476 | |
K. Y. Srinivasan | 345c4cc | 2011-08-25 09:48:34 -0700 | [diff] [blame] | 477 | static const struct hv_vmbus_device_id id_table[] = { |
Greg Kroah-Hartman | c45cf2d | 2011-08-25 11:41:33 -0700 | [diff] [blame] | 478 | /* Network guid */ |
| 479 | { VMBUS_DEVICE(0x63, 0x51, 0x61, 0xF8, 0x3E, 0xDF, 0xc5, 0x46, |
| 480 | 0x91, 0x3F, 0xF2, 0xD2, 0xF9, 0x65, 0xED, 0x0E) }, |
| 481 | { }, |
K. Y. Srinivasan | 345c4cc | 2011-08-25 09:48:34 -0700 | [diff] [blame] | 482 | }; |
| 483 | |
| 484 | MODULE_DEVICE_TABLE(vmbus, id_table); |
| 485 | |
K. Y. Srinivasan | f1542a6 | 2011-05-10 07:55:16 -0700 | [diff] [blame] | 486 | /* The one and only one */ |
K. Y. Srinivasan | fde0ef9 | 2011-05-12 19:35:08 -0700 | [diff] [blame] | 487 | static struct hv_driver netvsc_drv = { |
Greg Kroah-Hartman | 768fa21 | 2011-08-25 15:07:32 -0700 | [diff] [blame] | 488 | .name = "netvsc", |
K. Y. Srinivasan | 345c4cc | 2011-08-25 09:48:34 -0700 | [diff] [blame] | 489 | .id_table = id_table, |
K. Y. Srinivasan | fde0ef9 | 2011-05-12 19:35:08 -0700 | [diff] [blame] | 490 | .probe = netvsc_probe, |
| 491 | .remove = netvsc_remove, |
K. Y. Srinivasan | d489097 | 2011-05-10 07:55:17 -0700 | [diff] [blame] | 492 | }; |
K. Y. Srinivasan | f1542a6 | 2011-05-10 07:55:16 -0700 | [diff] [blame] | 493 | |
K. Y. Srinivasan | a9869c9 | 2011-05-12 19:35:17 -0700 | [diff] [blame] | 494 | static void __exit netvsc_drv_exit(void) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 495 | { |
Greg Kroah-Hartman | 768fa21 | 2011-08-25 15:07:32 -0700 | [diff] [blame] | 496 | vmbus_driver_unregister(&netvsc_drv); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 497 | } |
| 498 | |
K. Y. Srinivasan | 1fde28c | 2011-05-12 19:35:16 -0700 | [diff] [blame] | 499 | static int __init netvsc_drv_init(void) |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 500 | { |
Greg Kroah-Hartman | 768fa21 | 2011-08-25 15:07:32 -0700 | [diff] [blame] | 501 | return vmbus_driver_register(&netvsc_drv); |
Greg Kroah-Hartman | df2fff2 | 2009-08-31 21:11:12 -0700 | [diff] [blame] | 502 | } |
| 503 | |
Hank Janssen | 26c14cc | 2010-02-11 23:02:42 +0000 | [diff] [blame] | 504 | MODULE_LICENSE("GPL"); |
| 505 | MODULE_VERSION(HV_DRV_VERSION); |
Stephen Hemminger | 7880fc5 | 2010-05-04 09:58:52 -0700 | [diff] [blame] | 506 | MODULE_DESCRIPTION("Microsoft Hyper-V network driver"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 507 | |
K. Y. Srinivasan | 1fde28c | 2011-05-12 19:35:16 -0700 | [diff] [blame] | 508 | module_init(netvsc_drv_init); |
K. Y. Srinivasan | a9869c9 | 2011-05-12 19:35:17 -0700 | [diff] [blame] | 509 | module_exit(netvsc_drv_exit); |