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: |
| 18 | * Haiyang Zhang <haiyangz@microsoft.com> |
| 19 | * Hank Janssen <hjanssen@microsoft.com> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 20 | */ |
Greg Kroah-Hartman | 5654e93 | 2009-07-14 15:08:20 -0700 | [diff] [blame] | 21 | #include <linux/kernel.h> |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 22 | #include <linux/sched.h> |
| 23 | #include <linux/wait.h> |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 24 | #include <linux/highmem.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 25 | #include <linux/slab.h> |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 26 | #include <linux/io.h> |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 27 | #include <linux/if_ether.h> |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 28 | #include <linux/netdevice.h> |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 29 | #include <linux/if_vlan.h> |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 30 | #include <linux/nls.h> |
K. Y. Srinivasan | 3f335ea | 2011-05-12 19:34:15 -0700 | [diff] [blame] | 31 | |
K. Y. Srinivasan | 5ca7252 | 2011-05-12 19:34:37 -0700 | [diff] [blame] | 32 | #include "hyperv_net.h" |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 33 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 34 | |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 35 | #define RNDIS_EXT_LEN 100 |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 36 | struct rndis_request { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 37 | struct list_head list_ent; |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 38 | struct completion wait_event; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 39 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 40 | struct rndis_message response_msg; |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 41 | /* |
| 42 | * The buffer for extended info after the RNDIS response message. It's |
| 43 | * referenced based on the data offset in the RNDIS message. Its size |
| 44 | * is enough for current needs, and should be sufficient for the near |
| 45 | * future. |
| 46 | */ |
| 47 | u8 response_ext[RNDIS_EXT_LEN]; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 48 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 49 | /* Simplify allocation by having a netvsc packet inline */ |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 50 | struct hv_netvsc_packet pkt; |
Haiyang Zhang | 99e3fcf | 2012-10-02 05:30:21 +0000 | [diff] [blame] | 51 | /* Set 2 pages for rndis requests crossing page boundary */ |
| 52 | struct hv_page_buffer buf[2]; |
Haiyang Zhang | 0f48917 | 2012-08-09 08:04:18 +0000 | [diff] [blame] | 53 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 54 | struct rndis_message request_msg; |
Haiyang Zhang | 0f48917 | 2012-08-09 08:04:18 +0000 | [diff] [blame] | 55 | /* |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 56 | * The buffer for the extended info after the RNDIS request message. |
| 57 | * It is referenced and sized in a similar way as response_ext. |
Haiyang Zhang | 0f48917 | 2012-08-09 08:04:18 +0000 | [diff] [blame] | 58 | */ |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 59 | u8 request_ext[RNDIS_EXT_LEN]; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 60 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 61 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 62 | static void rndis_filter_send_completion(void *ctx); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 63 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 64 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 65 | static struct rndis_device *get_rndis_device(void) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 66 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 67 | struct rndis_device *device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 68 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 69 | device = kzalloc(sizeof(struct rndis_device), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 70 | if (!device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 71 | return NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 72 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 73 | spin_lock_init(&device->request_lock); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 74 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 75 | INIT_LIST_HEAD(&device->req_list); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 76 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 77 | device->state = RNDIS_DEV_UNINITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 78 | |
| 79 | return device; |
| 80 | } |
| 81 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 82 | static struct rndis_request *get_rndis_request(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 83 | u32 msg_type, |
| 84 | u32 msg_len) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 85 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 86 | struct rndis_request *request; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 87 | struct rndis_message *rndis_msg; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 88 | struct rndis_set_request *set; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 89 | unsigned long flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 90 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 91 | request = kzalloc(sizeof(struct rndis_request), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 92 | if (!request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 93 | return NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 94 | |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 95 | init_completion(&request->wait_event); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 96 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 97 | rndis_msg = &request->request_msg; |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 98 | rndis_msg->ndis_msg_type = msg_type; |
| 99 | rndis_msg->msg_len = msg_len; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 100 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 101 | /* |
| 102 | * Set the request id. This field is always after the rndis header for |
| 103 | * request/response packet types so we just used the SetRequest as a |
| 104 | * template |
| 105 | */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 106 | set = &rndis_msg->msg.set_req; |
| 107 | set->req_id = atomic_inc_return(&dev->new_req_id); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 108 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 109 | /* Add to the request list */ |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 110 | spin_lock_irqsave(&dev->request_lock, flags); |
| 111 | list_add_tail(&request->list_ent, &dev->req_list); |
| 112 | spin_unlock_irqrestore(&dev->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 113 | |
| 114 | return request; |
| 115 | } |
| 116 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 117 | static void put_rndis_request(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 118 | struct rndis_request *req) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 119 | { |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 120 | unsigned long flags; |
| 121 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 122 | spin_lock_irqsave(&dev->request_lock, flags); |
| 123 | list_del(&req->list_ent); |
| 124 | spin_unlock_irqrestore(&dev->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 125 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 126 | kfree(req); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 127 | } |
| 128 | |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 129 | static void dump_rndis_message(struct hv_device *hv_dev, |
| 130 | struct rndis_message *rndis_msg) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 131 | { |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 132 | struct net_device *netdev; |
| 133 | struct netvsc_device *net_device; |
| 134 | |
| 135 | net_device = hv_get_drvdata(hv_dev); |
| 136 | netdev = net_device->ndev; |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 137 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 138 | switch (rndis_msg->ndis_msg_type) { |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 139 | case RNDIS_MSG_PACKET: |
| 140 | netdev_dbg(netdev, "RNDIS_MSG_PACKET (len %u, " |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 141 | "data offset %u data len %u, # oob %u, " |
| 142 | "oob offset %u, oob len %u, pkt offset %u, " |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 143 | "pkt len %u\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 144 | rndis_msg->msg_len, |
| 145 | rndis_msg->msg.pkt.data_offset, |
| 146 | rndis_msg->msg.pkt.data_len, |
| 147 | rndis_msg->msg.pkt.num_oob_data_elements, |
| 148 | rndis_msg->msg.pkt.oob_data_offset, |
| 149 | rndis_msg->msg.pkt.oob_data_len, |
| 150 | rndis_msg->msg.pkt.per_pkt_info_offset, |
| 151 | rndis_msg->msg.pkt.per_pkt_info_len); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 152 | break; |
| 153 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 154 | case RNDIS_MSG_INIT_C: |
| 155 | netdev_dbg(netdev, "RNDIS_MSG_INIT_C " |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 156 | "(len %u, id 0x%x, status 0x%x, major %d, minor %d, " |
| 157 | "device flags %d, max xfer size 0x%x, max pkts %u, " |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 158 | "pkt aligned %u)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 159 | rndis_msg->msg_len, |
| 160 | rndis_msg->msg.init_complete.req_id, |
| 161 | rndis_msg->msg.init_complete.status, |
| 162 | rndis_msg->msg.init_complete.major_ver, |
| 163 | rndis_msg->msg.init_complete.minor_ver, |
| 164 | rndis_msg->msg.init_complete.dev_flags, |
| 165 | rndis_msg->msg.init_complete.max_xfer_size, |
| 166 | rndis_msg->msg.init_complete. |
| 167 | max_pkt_per_msg, |
| 168 | rndis_msg->msg.init_complete. |
| 169 | pkt_alignment_factor); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 170 | break; |
| 171 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 172 | case RNDIS_MSG_QUERY_C: |
| 173 | netdev_dbg(netdev, "RNDIS_MSG_QUERY_C " |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 174 | "(len %u, id 0x%x, status 0x%x, buf len %u, " |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 175 | "buf offset %u)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 176 | rndis_msg->msg_len, |
| 177 | rndis_msg->msg.query_complete.req_id, |
| 178 | rndis_msg->msg.query_complete.status, |
| 179 | rndis_msg->msg.query_complete. |
| 180 | info_buflen, |
| 181 | rndis_msg->msg.query_complete. |
| 182 | info_buf_offset); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 183 | break; |
| 184 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 185 | case RNDIS_MSG_SET_C: |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 186 | netdev_dbg(netdev, |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 187 | "RNDIS_MSG_SET_C (len %u, id 0x%x, status 0x%x)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 188 | rndis_msg->msg_len, |
| 189 | rndis_msg->msg.set_complete.req_id, |
| 190 | rndis_msg->msg.set_complete.status); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 191 | break; |
| 192 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 193 | case RNDIS_MSG_INDICATE: |
| 194 | netdev_dbg(netdev, "RNDIS_MSG_INDICATE " |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 195 | "(len %u, status 0x%x, buf len %u, buf offset %u)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 196 | rndis_msg->msg_len, |
| 197 | rndis_msg->msg.indicate_status.status, |
| 198 | rndis_msg->msg.indicate_status.status_buflen, |
| 199 | rndis_msg->msg.indicate_status.status_buf_offset); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 200 | break; |
| 201 | |
| 202 | default: |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 203 | netdev_dbg(netdev, "0x%x (len %u)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 204 | rndis_msg->ndis_msg_type, |
| 205 | rndis_msg->msg_len); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 206 | break; |
| 207 | } |
| 208 | } |
| 209 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 210 | static int rndis_filter_send_request(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 211 | struct rndis_request *req) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 212 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 213 | int ret; |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 214 | struct hv_netvsc_packet *packet; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 215 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 216 | /* Setup the packet to send it */ |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 217 | packet = &req->pkt; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 218 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 219 | packet->is_data_pkt = false; |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 220 | packet->total_data_buflen = req->request_msg.msg_len; |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 221 | packet->page_buf_cnt = 1; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 222 | |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 223 | packet->page_buf[0].pfn = virt_to_phys(&req->request_msg) >> |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 224 | PAGE_SHIFT; |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 225 | packet->page_buf[0].len = req->request_msg.msg_len; |
| 226 | packet->page_buf[0].offset = |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 227 | (unsigned long)&req->request_msg & (PAGE_SIZE - 1); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 228 | |
Haiyang Zhang | 99e3fcf | 2012-10-02 05:30:21 +0000 | [diff] [blame] | 229 | /* Add one page_buf when request_msg crossing page boundary */ |
| 230 | if (packet->page_buf[0].offset + packet->page_buf[0].len > PAGE_SIZE) { |
| 231 | packet->page_buf_cnt++; |
| 232 | packet->page_buf[0].len = PAGE_SIZE - |
| 233 | packet->page_buf[0].offset; |
| 234 | packet->page_buf[1].pfn = virt_to_phys((void *)&req->request_msg |
| 235 | + packet->page_buf[0].len) >> PAGE_SHIFT; |
| 236 | packet->page_buf[1].offset = 0; |
| 237 | packet->page_buf[1].len = req->request_msg.msg_len - |
| 238 | packet->page_buf[0].len; |
| 239 | } |
| 240 | |
Haiyang Zhang | f1ea3cd | 2013-04-05 11:44:40 +0000 | [diff] [blame] | 241 | packet->completion.send.send_completion = NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 242 | |
K. Y. Srinivasan | 0ec6ff4 | 2011-05-12 19:34:55 -0700 | [diff] [blame] | 243 | ret = netvsc_send(dev->net_dev->dev, packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 244 | return ret; |
| 245 | } |
| 246 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 247 | static void rndis_filter_receive_response(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 248 | struct rndis_message *resp) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 249 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 250 | struct rndis_request *request = NULL; |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 251 | bool found = false; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 252 | unsigned long flags; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 253 | struct net_device *ndev; |
| 254 | |
| 255 | ndev = dev->net_dev->ndev; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 256 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 257 | spin_lock_irqsave(&dev->request_lock, flags); |
| 258 | list_for_each_entry(request, &dev->req_list, list_ent) { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 259 | /* |
| 260 | * All request/response message contains RequestId as the 1st |
| 261 | * field |
| 262 | */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 263 | if (request->request_msg.msg.init_req.req_id |
| 264 | == resp->msg.init_complete.req_id) { |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 265 | found = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 266 | break; |
| 267 | } |
| 268 | } |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 269 | spin_unlock_irqrestore(&dev->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 270 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 271 | if (found) { |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 272 | if (resp->msg_len <= |
| 273 | sizeof(struct rndis_message) + RNDIS_EXT_LEN) { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 274 | memcpy(&request->response_msg, resp, |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 275 | resp->msg_len); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 276 | } else { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 277 | netdev_err(ndev, |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 278 | "rndis response buffer overflow " |
| 279 | "detected (size %u max %zu)\n", |
| 280 | resp->msg_len, |
| 281 | sizeof(struct rndis_filter_packet)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 282 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 283 | if (resp->ndis_msg_type == |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 284 | RNDIS_MSG_RESET_C) { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 285 | /* does not have a request id field */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 286 | request->response_msg.msg.reset_complete. |
Linus Walleij | 007e5c8 | 2012-05-11 22:15:59 +0000 | [diff] [blame] | 287 | status = RNDIS_STATUS_BUFFER_OVERFLOW; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 288 | } else { |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 289 | request->response_msg.msg. |
| 290 | init_complete.status = |
Linus Walleij | 007e5c8 | 2012-05-11 22:15:59 +0000 | [diff] [blame] | 291 | RNDIS_STATUS_BUFFER_OVERFLOW; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 292 | } |
| 293 | } |
| 294 | |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 295 | complete(&request->wait_event); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 296 | } else { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 297 | netdev_err(ndev, |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 298 | "no rndis request found for this response " |
| 299 | "(id 0x%x res type 0x%x)\n", |
| 300 | resp->msg.init_complete.req_id, |
| 301 | resp->ndis_msg_type); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 302 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 303 | } |
| 304 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 305 | static void rndis_filter_receive_indicate_status(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 306 | struct rndis_message *resp) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 307 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 308 | struct rndis_indicate_status *indicate = |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 309 | &resp->msg.indicate_status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 310 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 311 | if (indicate->status == RNDIS_STATUS_MEDIA_CONNECT) { |
K. Y. Srinivasan | 39fb6aa | 2011-05-12 19:34:56 -0700 | [diff] [blame] | 312 | netvsc_linkstatus_callback( |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 313 | dev->net_dev->dev, 1); |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 314 | } else if (indicate->status == RNDIS_STATUS_MEDIA_DISCONNECT) { |
K. Y. Srinivasan | 39fb6aa | 2011-05-12 19:34:56 -0700 | [diff] [blame] | 315 | netvsc_linkstatus_callback( |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 316 | dev->net_dev->dev, 0); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 317 | } else { |
| 318 | /* |
| 319 | * TODO: |
| 320 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 321 | } |
| 322 | } |
| 323 | |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 324 | /* |
| 325 | * Get the Per-Packet-Info with the specified type |
| 326 | * return NULL if not found. |
| 327 | */ |
| 328 | static inline void *rndis_get_ppi(struct rndis_packet *rpkt, u32 type) |
| 329 | { |
| 330 | struct rndis_per_packet_info *ppi; |
| 331 | int len; |
| 332 | |
| 333 | if (rpkt->per_pkt_info_offset == 0) |
| 334 | return NULL; |
| 335 | |
| 336 | ppi = (struct rndis_per_packet_info *)((ulong)rpkt + |
| 337 | rpkt->per_pkt_info_offset); |
| 338 | len = rpkt->per_pkt_info_len; |
| 339 | |
| 340 | while (len > 0) { |
| 341 | if (ppi->type == type) |
| 342 | return (void *)((ulong)ppi + ppi->ppi_offset); |
| 343 | len -= ppi->size; |
| 344 | ppi = (struct rndis_per_packet_info *)((ulong)ppi + ppi->size); |
| 345 | } |
| 346 | |
| 347 | return NULL; |
| 348 | } |
| 349 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 350 | static void rndis_filter_receive_data(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 351 | struct rndis_message *msg, |
| 352 | struct hv_netvsc_packet *pkt) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 353 | { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 354 | struct rndis_packet *rndis_pkt; |
| 355 | u32 data_offset; |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 356 | struct ndis_pkt_8021q_info *vlan; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 357 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 358 | rndis_pkt = &msg->msg.pkt; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 359 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 360 | /* Remove the rndis header and pass it back up the stack */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 361 | data_offset = RNDIS_HEADER_SIZE + rndis_pkt->data_offset; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 362 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 363 | pkt->total_data_buflen -= data_offset; |
Wei Yongjun | 4b8a8bc | 2012-02-01 20:17:23 +0000 | [diff] [blame] | 364 | |
| 365 | /* |
| 366 | * Make sure we got a valid RNDIS message, now total_data_buflen |
| 367 | * should be the data packet size plus the trailer padding size |
| 368 | */ |
| 369 | if (pkt->total_data_buflen < rndis_pkt->data_len) { |
| 370 | netdev_err(dev->net_dev->ndev, "rndis message buffer " |
| 371 | "overflow detected (got %u, min %u)" |
| 372 | "...dropping this message!\n", |
| 373 | pkt->total_data_buflen, rndis_pkt->data_len); |
| 374 | return; |
| 375 | } |
| 376 | |
| 377 | /* |
| 378 | * Remove the rndis trailer padding from rndis packet message |
| 379 | * rndis_pkt->data_len tell us the real data length, we only copy |
| 380 | * the data packet to the stack, without the rndis trailer padding |
| 381 | */ |
| 382 | pkt->total_data_buflen = rndis_pkt->data_len; |
Haiyang Zhang | 4532634 | 2011-12-15 13:45:15 -0800 | [diff] [blame] | 383 | pkt->data = (void *)((unsigned long)pkt->data + data_offset); |
Haiyang Zhang | 669c1fc | 2011-09-01 12:19:47 -0700 | [diff] [blame] | 384 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 385 | pkt->is_data_pkt = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 386 | |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 387 | vlan = rndis_get_ppi(rndis_pkt, IEEE_8021Q_INFO); |
| 388 | if (vlan) { |
| 389 | pkt->vlan_tci = VLAN_TAG_PRESENT | vlan->vlanid | |
| 390 | (vlan->pri << VLAN_PRIO_SHIFT); |
| 391 | } else { |
| 392 | pkt->vlan_tci = 0; |
| 393 | } |
| 394 | |
K. Y. Srinivasan | a25e1db | 2011-05-12 19:34:57 -0700 | [diff] [blame] | 395 | netvsc_recv_callback(dev->net_dev->dev, pkt); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 396 | } |
| 397 | |
K. Y. Srinivasan | 5fcc411 | 2011-05-12 19:34:52 -0700 | [diff] [blame] | 398 | int rndis_filter_receive(struct hv_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 399 | struct hv_netvsc_packet *pkt) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 400 | { |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 401 | struct netvsc_device *net_dev = hv_get_drvdata(dev); |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 402 | struct rndis_device *rndis_dev; |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 403 | struct rndis_message *rndis_msg; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 404 | struct net_device *ndev; |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 405 | int ret = 0; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 406 | |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 407 | if (!net_dev) { |
| 408 | ret = -EINVAL; |
| 409 | goto exit; |
| 410 | } |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 411 | |
K. Y. Srinivasan | 715a480 | 2011-10-06 10:10:56 -0700 | [diff] [blame] | 412 | ndev = net_dev->ndev; |
| 413 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 414 | /* Make sure the rndis device state is initialized */ |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 415 | if (!net_dev->extension) { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 416 | netdev_err(ndev, "got rndis message but no rndis device - " |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 417 | "dropping this message!\n"); |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 418 | ret = -ENODEV; |
| 419 | goto exit; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 420 | } |
| 421 | |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 422 | rndis_dev = (struct rndis_device *)net_dev->extension; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 423 | if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 424 | netdev_err(ndev, "got rndis message but rndis device " |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 425 | "uninitialized...dropping this message!\n"); |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 426 | ret = -ENODEV; |
| 427 | goto exit; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 428 | } |
| 429 | |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 430 | rndis_msg = pkt->data; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 431 | |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 432 | dump_rndis_message(dev, rndis_msg); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 433 | |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 434 | switch (rndis_msg->ndis_msg_type) { |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 435 | case RNDIS_MSG_PACKET: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 436 | /* data msg */ |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 437 | rndis_filter_receive_data(rndis_dev, rndis_msg, pkt); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 438 | break; |
| 439 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 440 | case RNDIS_MSG_INIT_C: |
| 441 | case RNDIS_MSG_QUERY_C: |
| 442 | case RNDIS_MSG_SET_C: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 443 | /* completion msgs */ |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 444 | rndis_filter_receive_response(rndis_dev, rndis_msg); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 445 | break; |
| 446 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 447 | case RNDIS_MSG_INDICATE: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 448 | /* notification msgs */ |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 449 | rndis_filter_receive_indicate_status(rndis_dev, rndis_msg); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 450 | break; |
| 451 | default: |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 452 | netdev_err(ndev, |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 453 | "unhandled rndis message (type %u len %u)\n", |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 454 | rndis_msg->ndis_msg_type, |
| 455 | rndis_msg->msg_len); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 456 | break; |
| 457 | } |
| 458 | |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 459 | exit: |
| 460 | if (ret != 0) |
| 461 | pkt->status = NVSP_STAT_FAIL; |
| 462 | |
| 463 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 464 | } |
| 465 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 466 | static int rndis_filter_query_device(struct rndis_device *dev, u32 oid, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 467 | void *result, u32 *result_size) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 468 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 469 | struct rndis_request *request; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 470 | u32 inresult_size = *result_size; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 471 | struct rndis_query_request *query; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 472 | struct rndis_query_complete *query_complete; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 473 | int ret = 0; |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 474 | int t; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 475 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 476 | if (!result) |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 477 | return -EINVAL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 478 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 479 | *result_size = 0; |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 480 | request = get_rndis_request(dev, RNDIS_MSG_QUERY, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 481 | RNDIS_MESSAGE_SIZE(struct rndis_query_request)); |
| 482 | if (!request) { |
K. Y. Srinivasan | de6e058 | 2011-08-25 09:49:18 -0700 | [diff] [blame] | 483 | ret = -ENOMEM; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 484 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 485 | } |
| 486 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 487 | /* Setup the rndis query */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 488 | query = &request->request_msg.msg.query_req; |
| 489 | query->oid = oid; |
| 490 | query->info_buf_offset = sizeof(struct rndis_query_request); |
| 491 | query->info_buflen = 0; |
| 492 | query->dev_vc_handle = 0; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 493 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 494 | ret = rndis_filter_send_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 495 | if (ret != 0) |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 496 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 497 | |
K. Y. Srinivasan | 5c5781b3 | 2011-06-16 13:16:35 -0700 | [diff] [blame] | 498 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 499 | if (t == 0) { |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 500 | ret = -ETIMEDOUT; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 501 | goto cleanup; |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 502 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 503 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 504 | /* Copy the response back */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 505 | query_complete = &request->response_msg.msg.query_complete; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 506 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 507 | if (query_complete->info_buflen > inresult_size) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 508 | ret = -1; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 509 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 510 | } |
| 511 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 512 | memcpy(result, |
| 513 | (void *)((unsigned long)query_complete + |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 514 | query_complete->info_buf_offset), |
| 515 | query_complete->info_buflen); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 516 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 517 | *result_size = query_complete->info_buflen; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 518 | |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 519 | cleanup: |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 520 | if (request) |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 521 | put_rndis_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 522 | |
| 523 | return ret; |
| 524 | } |
| 525 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 526 | static int rndis_filter_query_device_mac(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 527 | { |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 528 | u32 size = ETH_ALEN; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 529 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 530 | return rndis_filter_query_device(dev, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 531 | RNDIS_OID_802_3_PERMANENT_ADDRESS, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 532 | dev->hw_mac_adr, &size); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 533 | } |
| 534 | |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 535 | #define NWADR_STR "NetworkAddress" |
| 536 | #define NWADR_STRLEN 14 |
| 537 | |
| 538 | int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac) |
| 539 | { |
| 540 | struct netvsc_device *nvdev = hv_get_drvdata(hdev); |
| 541 | struct rndis_device *rdev = nvdev->extension; |
| 542 | struct net_device *ndev = nvdev->ndev; |
| 543 | struct rndis_request *request; |
| 544 | struct rndis_set_request *set; |
| 545 | struct rndis_config_parameter_info *cpi; |
| 546 | wchar_t *cfg_nwadr, *cfg_mac; |
| 547 | struct rndis_set_complete *set_complete; |
| 548 | char macstr[2*ETH_ALEN+1]; |
| 549 | u32 extlen = sizeof(struct rndis_config_parameter_info) + |
| 550 | 2*NWADR_STRLEN + 4*ETH_ALEN; |
| 551 | int ret, t; |
| 552 | |
| 553 | request = get_rndis_request(rdev, RNDIS_MSG_SET, |
| 554 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + extlen); |
| 555 | if (!request) |
| 556 | return -ENOMEM; |
| 557 | |
| 558 | set = &request->request_msg.msg.set_req; |
| 559 | set->oid = RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER; |
| 560 | set->info_buflen = extlen; |
| 561 | set->info_buf_offset = sizeof(struct rndis_set_request); |
| 562 | set->dev_vc_handle = 0; |
| 563 | |
| 564 | cpi = (struct rndis_config_parameter_info *)((ulong)set + |
| 565 | set->info_buf_offset); |
| 566 | cpi->parameter_name_offset = |
| 567 | sizeof(struct rndis_config_parameter_info); |
| 568 | /* Multiply by 2 because host needs 2 bytes (utf16) for each char */ |
| 569 | cpi->parameter_name_length = 2*NWADR_STRLEN; |
| 570 | cpi->parameter_type = RNDIS_CONFIG_PARAM_TYPE_STRING; |
| 571 | cpi->parameter_value_offset = |
| 572 | cpi->parameter_name_offset + cpi->parameter_name_length; |
| 573 | /* Multiply by 4 because each MAC byte displayed as 2 utf16 chars */ |
| 574 | cpi->parameter_value_length = 4*ETH_ALEN; |
| 575 | |
| 576 | cfg_nwadr = (wchar_t *)((ulong)cpi + cpi->parameter_name_offset); |
| 577 | cfg_mac = (wchar_t *)((ulong)cpi + cpi->parameter_value_offset); |
| 578 | ret = utf8s_to_utf16s(NWADR_STR, NWADR_STRLEN, UTF16_HOST_ENDIAN, |
| 579 | cfg_nwadr, NWADR_STRLEN); |
| 580 | if (ret < 0) |
| 581 | goto cleanup; |
| 582 | snprintf(macstr, 2*ETH_ALEN+1, "%pm", mac); |
| 583 | ret = utf8s_to_utf16s(macstr, 2*ETH_ALEN, UTF16_HOST_ENDIAN, |
| 584 | cfg_mac, 2*ETH_ALEN); |
| 585 | if (ret < 0) |
| 586 | goto cleanup; |
| 587 | |
| 588 | ret = rndis_filter_send_request(rdev, request); |
| 589 | if (ret != 0) |
| 590 | goto cleanup; |
| 591 | |
| 592 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
| 593 | if (t == 0) { |
| 594 | netdev_err(ndev, "timeout before we got a set response...\n"); |
| 595 | /* |
| 596 | * can't put_rndis_request, since we may still receive a |
| 597 | * send-completion. |
| 598 | */ |
| 599 | return -EBUSY; |
| 600 | } else { |
| 601 | set_complete = &request->response_msg.msg.set_complete; |
Haiyang Zhang | b02a806 | 2012-11-30 09:23:41 +0000 | [diff] [blame] | 602 | if (set_complete->status != RNDIS_STATUS_SUCCESS) { |
| 603 | netdev_err(ndev, "Fail to set MAC on host side:0x%x\n", |
| 604 | set_complete->status); |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 605 | ret = -EINVAL; |
Haiyang Zhang | b02a806 | 2012-11-30 09:23:41 +0000 | [diff] [blame] | 606 | } |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 607 | } |
| 608 | |
| 609 | cleanup: |
| 610 | put_rndis_request(rdev, request); |
| 611 | return ret; |
| 612 | } |
| 613 | |
| 614 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 615 | static int rndis_filter_query_device_link_status(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 616 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 617 | u32 size = sizeof(u32); |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 618 | u32 link_status; |
| 619 | int ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 620 | |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 621 | ret = rndis_filter_query_device(dev, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 622 | RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 623 | &link_status, &size); |
| 624 | dev->link_state = (link_status != 0) ? true : false; |
| 625 | |
| 626 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 627 | } |
| 628 | |
Haiyang Zhang | d426b2e | 2011-11-30 07:19:08 -0800 | [diff] [blame] | 629 | int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 630 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 631 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 632 | struct rndis_set_request *set; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 633 | struct rndis_set_complete *set_complete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 634 | u32 status; |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 635 | int ret, t; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 636 | struct net_device *ndev; |
| 637 | |
| 638 | ndev = dev->net_dev->ndev; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 639 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 640 | request = get_rndis_request(dev, RNDIS_MSG_SET, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 641 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + |
| 642 | sizeof(u32)); |
| 643 | if (!request) { |
K. Y. Srinivasan | 58ef397 | 2011-08-25 09:49:19 -0700 | [diff] [blame] | 644 | ret = -ENOMEM; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 645 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 646 | } |
| 647 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 648 | /* Setup the rndis set */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 649 | set = &request->request_msg.msg.set_req; |
| 650 | set->oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER; |
| 651 | set->info_buflen = sizeof(u32); |
| 652 | set->info_buf_offset = sizeof(struct rndis_set_request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 653 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 654 | memcpy((void *)(unsigned long)set + sizeof(struct rndis_set_request), |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 655 | &new_filter, sizeof(u32)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 656 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 657 | ret = rndis_filter_send_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 658 | if (ret != 0) |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 659 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 660 | |
K. Y. Srinivasan | 5c5781b3 | 2011-06-16 13:16:35 -0700 | [diff] [blame] | 661 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 662 | |
| 663 | if (t == 0) { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 664 | netdev_err(ndev, |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 665 | "timeout before we got a set response...\n"); |
Haiyang Zhang | ea49637 | 2012-10-02 05:30:20 +0000 | [diff] [blame] | 666 | ret = -ETIMEDOUT; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 667 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 668 | * We can't deallocate the request since we may still receive a |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 669 | * send completion for it. |
| 670 | */ |
K. Y. Srinivasan | 5585d81 | 2011-08-25 09:49:25 -0700 | [diff] [blame] | 671 | goto exit; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 672 | } else { |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 673 | set_complete = &request->response_msg.msg.set_complete; |
| 674 | status = set_complete->status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 675 | } |
| 676 | |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 677 | cleanup: |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 678 | if (request) |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 679 | put_rndis_request(dev, request); |
K. Y. Srinivasan | 5585d81 | 2011-08-25 09:49:25 -0700 | [diff] [blame] | 680 | exit: |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 681 | return ret; |
| 682 | } |
| 683 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 684 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 685 | static int rndis_filter_init_device(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 686 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 687 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 688 | struct rndis_initialize_request *init; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 689 | struct rndis_initialize_complete *init_complete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 690 | u32 status; |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 691 | int ret, t; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 692 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 693 | request = get_rndis_request(dev, RNDIS_MSG_INIT, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 694 | RNDIS_MESSAGE_SIZE(struct rndis_initialize_request)); |
| 695 | if (!request) { |
K. Y. Srinivasan | bc49b926 | 2011-08-25 09:49:20 -0700 | [diff] [blame] | 696 | ret = -ENOMEM; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 697 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 698 | } |
| 699 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 700 | /* Setup the rndis set */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 701 | init = &request->request_msg.msg.init_req; |
| 702 | init->major_ver = RNDIS_MAJOR_VERSION; |
| 703 | init->minor_ver = RNDIS_MINOR_VERSION; |
Haiyang Zhang | fb1d074 | 2012-10-02 05:30:19 +0000 | [diff] [blame] | 704 | init->max_xfer_size = 0x4000; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 705 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 706 | dev->state = RNDIS_DEV_INITIALIZING; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 707 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 708 | ret = rndis_filter_send_request(dev, request); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 709 | if (ret != 0) { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 710 | dev->state = RNDIS_DEV_UNINITIALIZED; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 711 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 712 | } |
| 713 | |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 714 | |
K. Y. Srinivasan | 5c5781b3 | 2011-06-16 13:16:35 -0700 | [diff] [blame] | 715 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 716 | |
| 717 | if (t == 0) { |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 718 | ret = -ETIMEDOUT; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 719 | goto cleanup; |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 720 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 721 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 722 | init_complete = &request->response_msg.msg.init_complete; |
| 723 | status = init_complete->status; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 724 | if (status == RNDIS_STATUS_SUCCESS) { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 725 | dev->state = RNDIS_DEV_INITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 726 | ret = 0; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 727 | } else { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 728 | dev->state = RNDIS_DEV_UNINITIALIZED; |
K. Y. Srinivasan | bc49b926 | 2011-08-25 09:49:20 -0700 | [diff] [blame] | 729 | ret = -EINVAL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 730 | } |
| 731 | |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 732 | cleanup: |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 733 | if (request) |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 734 | put_rndis_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 735 | |
| 736 | return ret; |
| 737 | } |
| 738 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 739 | static void rndis_filter_halt_device(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 740 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 741 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 742 | struct rndis_halt_request *halt; |
Haiyang Zhang | ae9e63b | 2012-08-03 09:32:18 +0000 | [diff] [blame] | 743 | struct netvsc_device *nvdev = dev->net_dev; |
| 744 | struct hv_device *hdev = nvdev->dev; |
| 745 | ulong flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 746 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 747 | /* Attempt to do a rndis device halt */ |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 748 | request = get_rndis_request(dev, RNDIS_MSG_HALT, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 749 | RNDIS_MESSAGE_SIZE(struct rndis_halt_request)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 750 | if (!request) |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 751 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 752 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 753 | /* Setup the rndis set */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 754 | halt = &request->request_msg.msg.halt_req; |
| 755 | halt->req_id = atomic_inc_return(&dev->new_req_id); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 756 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 757 | /* Ignore return since this msg is optional. */ |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 758 | rndis_filter_send_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 759 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 760 | dev->state = RNDIS_DEV_UNINITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 761 | |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 762 | cleanup: |
Haiyang Zhang | ae9e63b | 2012-08-03 09:32:18 +0000 | [diff] [blame] | 763 | spin_lock_irqsave(&hdev->channel->inbound_lock, flags); |
| 764 | nvdev->destroy = true; |
| 765 | spin_unlock_irqrestore(&hdev->channel->inbound_lock, flags); |
| 766 | |
| 767 | /* Wait for all send completions */ |
| 768 | wait_event(nvdev->wait_drain, |
| 769 | atomic_read(&nvdev->num_outstanding_sends) == 0); |
| 770 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 771 | if (request) |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 772 | put_rndis_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 773 | return; |
| 774 | } |
| 775 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 776 | static int rndis_filter_open_device(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 777 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 778 | int ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 779 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 780 | if (dev->state != RNDIS_DEV_INITIALIZED) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 781 | return 0; |
| 782 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 783 | ret = rndis_filter_set_packet_filter(dev, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 784 | NDIS_PACKET_TYPE_BROADCAST | |
Haiyang Zhang | 95beae9 | 2010-04-19 15:32:11 +0000 | [diff] [blame] | 785 | NDIS_PACKET_TYPE_ALL_MULTICAST | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 786 | NDIS_PACKET_TYPE_DIRECTED); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 787 | if (ret == 0) |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 788 | dev->state = RNDIS_DEV_DATAINITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 789 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 790 | return ret; |
| 791 | } |
| 792 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 793 | static int rndis_filter_close_device(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 794 | { |
| 795 | int ret; |
| 796 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 797 | if (dev->state != RNDIS_DEV_DATAINITIALIZED) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 798 | return 0; |
| 799 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 800 | ret = rndis_filter_set_packet_filter(dev, 0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 801 | if (ret == 0) |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 802 | dev->state = RNDIS_DEV_INITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 803 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 804 | return ret; |
| 805 | } |
| 806 | |
Haiyang Zhang | bdbad57 | 2011-05-23 09:03:49 -0700 | [diff] [blame] | 807 | int rndis_filter_device_add(struct hv_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 808 | void *additional_info) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 809 | { |
| 810 | int ret; |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 811 | struct netvsc_device *net_device; |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 812 | struct rndis_device *rndis_device; |
K. Y. Srinivasan | 3c4deba | 2011-09-13 10:59:56 -0700 | [diff] [blame] | 813 | struct netvsc_device_info *device_info = additional_info; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 814 | |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 815 | rndis_device = get_rndis_device(); |
| 816 | if (!rndis_device) |
K. Y. Srinivasan | 327efba | 2011-08-25 09:49:21 -0700 | [diff] [blame] | 817 | return -ENODEV; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 818 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 819 | /* |
| 820 | * Let the inner driver handle this first to create the netvsc channel |
| 821 | * NOTE! Once the channel is created, we may get a receive callback |
| 822 | * (RndisFilterOnReceive()) before this call is completed |
| 823 | */ |
K. Y. Srinivasan | ce5bf66 | 2011-05-10 07:55:00 -0700 | [diff] [blame] | 824 | ret = netvsc_device_add(dev, additional_info); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 825 | if (ret != 0) { |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 826 | kfree(rndis_device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 827 | return ret; |
| 828 | } |
| 829 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 830 | |
| 831 | /* Initialize the rndis device */ |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 832 | net_device = hv_get_drvdata(dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 833 | |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 834 | net_device->extension = rndis_device; |
| 835 | rndis_device->net_dev = net_device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 836 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 837 | /* Send the rndis initialization message */ |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 838 | ret = rndis_filter_init_device(rndis_device); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 839 | if (ret != 0) { |
Haiyang Zhang | 5243e7b | 2012-07-25 08:08:42 +0000 | [diff] [blame] | 840 | rndis_filter_device_remove(dev); |
| 841 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 842 | } |
| 843 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 844 | /* Get the mac address */ |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 845 | ret = rndis_filter_query_device_mac(rndis_device); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 846 | if (ret != 0) { |
Haiyang Zhang | 5243e7b | 2012-07-25 08:08:42 +0000 | [diff] [blame] | 847 | rndis_filter_device_remove(dev); |
| 848 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 849 | } |
| 850 | |
K. Y. Srinivasan | 3c4deba | 2011-09-13 10:59:56 -0700 | [diff] [blame] | 851 | memcpy(device_info->mac_adr, rndis_device->hw_mac_adr, ETH_ALEN); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 852 | |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 853 | rndis_filter_query_device_link_status(rndis_device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 854 | |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 855 | device_info->link_state = rndis_device->link_state; |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 856 | |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 857 | dev_info(&dev->device, "Device MAC %pM link state %s\n", |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 858 | rndis_device->hw_mac_adr, |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 859 | device_info->link_state ? "down" : "up"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 860 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 861 | return ret; |
| 862 | } |
| 863 | |
Haiyang Zhang | df06bcf | 2011-05-23 09:03:47 -0700 | [diff] [blame] | 864 | void rndis_filter_device_remove(struct hv_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 865 | { |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 866 | struct netvsc_device *net_dev = hv_get_drvdata(dev); |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 867 | struct rndis_device *rndis_dev = net_dev->extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 868 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 869 | /* Halt and release the rndis device */ |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 870 | rndis_filter_halt_device(rndis_dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 871 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 872 | kfree(rndis_dev); |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 873 | net_dev->extension = NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 874 | |
K. Y. Srinivasan | 3fae5c8 | 2011-05-10 07:55:02 -0700 | [diff] [blame] | 875 | netvsc_device_remove(dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 876 | } |
| 877 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 878 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 879 | int rndis_filter_open(struct hv_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 880 | { |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 881 | struct netvsc_device *net_device = hv_get_drvdata(dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 882 | |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 883 | if (!net_device) |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 884 | return -EINVAL; |
| 885 | |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 886 | return rndis_filter_open_device(net_device->extension); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 887 | } |
| 888 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 889 | int rndis_filter_close(struct hv_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 890 | { |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 891 | struct netvsc_device *nvdev = hv_get_drvdata(dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 892 | |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 893 | if (!nvdev) |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 894 | return -EINVAL; |
| 895 | |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 896 | return rndis_filter_close_device(nvdev->extension); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 897 | } |
| 898 | |
K. Y. Srinivasan | 0652aeb | 2011-05-12 19:34:53 -0700 | [diff] [blame] | 899 | int rndis_filter_send(struct hv_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 900 | struct hv_netvsc_packet *pkt) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 901 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 902 | int ret; |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 903 | struct rndis_filter_packet *filter_pkt; |
| 904 | struct rndis_message *rndis_msg; |
| 905 | struct rndis_packet *rndis_pkt; |
| 906 | u32 rndis_msg_size; |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 907 | bool isvlan = pkt->vlan_tci & VLAN_TAG_PRESENT; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 908 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 909 | /* Add the rndis header */ |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 910 | filter_pkt = (struct rndis_filter_packet *)pkt->extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 911 | |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 912 | rndis_msg = &filter_pkt->msg; |
| 913 | rndis_msg_size = RNDIS_MESSAGE_SIZE(struct rndis_packet); |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 914 | if (isvlan) |
| 915 | rndis_msg_size += NDIS_VLAN_PPI_SIZE; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 916 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 917 | rndis_msg->ndis_msg_type = RNDIS_MSG_PACKET; |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 918 | rndis_msg->msg_len = pkt->total_data_buflen + |
| 919 | rndis_msg_size; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 920 | |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 921 | rndis_pkt = &rndis_msg->msg.pkt; |
| 922 | rndis_pkt->data_offset = sizeof(struct rndis_packet); |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 923 | if (isvlan) |
| 924 | rndis_pkt->data_offset += NDIS_VLAN_PPI_SIZE; |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 925 | rndis_pkt->data_len = pkt->total_data_buflen; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 926 | |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 927 | if (isvlan) { |
| 928 | struct rndis_per_packet_info *ppi; |
| 929 | struct ndis_pkt_8021q_info *vlan; |
| 930 | |
| 931 | rndis_pkt->per_pkt_info_offset = sizeof(struct rndis_packet); |
| 932 | rndis_pkt->per_pkt_info_len = NDIS_VLAN_PPI_SIZE; |
| 933 | |
| 934 | ppi = (struct rndis_per_packet_info *)((ulong)rndis_pkt + |
| 935 | rndis_pkt->per_pkt_info_offset); |
| 936 | ppi->size = NDIS_VLAN_PPI_SIZE; |
| 937 | ppi->type = IEEE_8021Q_INFO; |
| 938 | ppi->ppi_offset = sizeof(struct rndis_per_packet_info); |
| 939 | |
| 940 | vlan = (struct ndis_pkt_8021q_info *)((ulong)ppi + |
| 941 | ppi->ppi_offset); |
| 942 | vlan->vlanid = pkt->vlan_tci & VLAN_VID_MASK; |
| 943 | vlan->pri = (pkt->vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; |
| 944 | } |
| 945 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 946 | pkt->is_data_pkt = true; |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 947 | pkt->page_buf[0].pfn = virt_to_phys(rndis_msg) >> PAGE_SHIFT; |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 948 | pkt->page_buf[0].offset = |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 949 | (unsigned long)rndis_msg & (PAGE_SIZE-1); |
| 950 | pkt->page_buf[0].len = rndis_msg_size; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 951 | |
Haiyang Zhang | c31c151 | 2012-02-02 07:18:00 +0000 | [diff] [blame] | 952 | /* Add one page_buf if the rndis msg goes beyond page boundary */ |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 953 | if (pkt->page_buf[0].offset + rndis_msg_size > PAGE_SIZE) { |
Haiyang Zhang | c31c151 | 2012-02-02 07:18:00 +0000 | [diff] [blame] | 954 | int i; |
| 955 | for (i = pkt->page_buf_cnt; i > 1; i--) |
| 956 | pkt->page_buf[i] = pkt->page_buf[i-1]; |
| 957 | pkt->page_buf_cnt++; |
| 958 | pkt->page_buf[0].len = PAGE_SIZE - pkt->page_buf[0].offset; |
| 959 | pkt->page_buf[1].pfn = virt_to_phys((void *)((ulong) |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 960 | rndis_msg + pkt->page_buf[0].len)) >> PAGE_SHIFT; |
Haiyang Zhang | c31c151 | 2012-02-02 07:18:00 +0000 | [diff] [blame] | 961 | pkt->page_buf[1].offset = 0; |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 962 | pkt->page_buf[1].len = rndis_msg_size - pkt->page_buf[0].len; |
Haiyang Zhang | c31c151 | 2012-02-02 07:18:00 +0000 | [diff] [blame] | 963 | } |
| 964 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 965 | /* Save the packet send completion and context */ |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 966 | filter_pkt->completion = pkt->completion.send.send_completion; |
| 967 | filter_pkt->completion_ctx = |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 968 | pkt->completion.send.send_completion_ctx; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 969 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 970 | /* Use ours */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 971 | pkt->completion.send.send_completion = rndis_filter_send_completion; |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 972 | pkt->completion.send.send_completion_ctx = filter_pkt; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 973 | |
K. Y. Srinivasan | 0ec6ff4 | 2011-05-12 19:34:55 -0700 | [diff] [blame] | 974 | ret = netvsc_send(dev, pkt); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 975 | if (ret != 0) { |
| 976 | /* |
| 977 | * Reset the completion to originals to allow retries from |
| 978 | * above |
| 979 | */ |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 980 | pkt->completion.send.send_completion = |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 981 | filter_pkt->completion; |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 982 | pkt->completion.send.send_completion_ctx = |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 983 | filter_pkt->completion_ctx; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 984 | } |
| 985 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 986 | return ret; |
| 987 | } |
| 988 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 989 | static void rndis_filter_send_completion(void *ctx) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 990 | { |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 991 | struct rndis_filter_packet *filter_pkt = ctx; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 992 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 993 | /* Pass it back to the original handler */ |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 994 | filter_pkt->completion(filter_pkt->completion_ctx); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 995 | } |