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 |
Jeff Kirsher | adf8d3f | 2013-12-06 06:28:47 -0800 | [diff] [blame] | 14 | * this program; if not, see <http://www.gnu.org/licenses/>. |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 15 | * |
| 16 | * Authors: |
| 17 | * Haiyang Zhang <haiyangz@microsoft.com> |
| 18 | * Hank Janssen <hjanssen@microsoft.com> |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 19 | */ |
Greg Kroah-Hartman | 5654e93 | 2009-07-14 15:08:20 -0700 | [diff] [blame] | 20 | #include <linux/kernel.h> |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 21 | #include <linux/sched.h> |
| 22 | #include <linux/wait.h> |
Bill Pemberton | 45da89e | 2009-07-29 17:00:15 -0400 | [diff] [blame] | 23 | #include <linux/highmem.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 24 | #include <linux/slab.h> |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 25 | #include <linux/io.h> |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 26 | #include <linux/if_ether.h> |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 27 | #include <linux/netdevice.h> |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 28 | #include <linux/if_vlan.h> |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 29 | #include <linux/nls.h> |
K. Y. Srinivasan | 3f335ea | 2011-05-12 19:34:15 -0700 | [diff] [blame] | 30 | |
K. Y. Srinivasan | 5ca7252 | 2011-05-12 19:34:37 -0700 | [diff] [blame] | 31 | #include "hyperv_net.h" |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 32 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 33 | |
Haiyang Zhang | 5b54dac | 2014-04-21 10:20:28 -0700 | [diff] [blame] | 34 | #define RNDIS_EXT_LEN PAGE_SIZE |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 35 | struct rndis_request { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 36 | struct list_head list_ent; |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 37 | struct completion wait_event; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 38 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 39 | struct rndis_message response_msg; |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 40 | /* |
| 41 | * The buffer for extended info after the RNDIS response message. It's |
| 42 | * referenced based on the data offset in the RNDIS message. Its size |
| 43 | * is enough for current needs, and should be sufficient for the near |
| 44 | * future. |
| 45 | */ |
| 46 | u8 response_ext[RNDIS_EXT_LEN]; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 47 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 48 | /* Simplify allocation by having a netvsc packet inline */ |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 49 | struct hv_netvsc_packet pkt; |
Haiyang Zhang | 99e3fcf | 2012-10-02 05:30:21 +0000 | [diff] [blame] | 50 | /* Set 2 pages for rndis requests crossing page boundary */ |
| 51 | struct hv_page_buffer buf[2]; |
Haiyang Zhang | 0f48917 | 2012-08-09 08:04:18 +0000 | [diff] [blame] | 52 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 53 | struct rndis_message request_msg; |
Haiyang Zhang | 0f48917 | 2012-08-09 08:04:18 +0000 | [diff] [blame] | 54 | /* |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 55 | * The buffer for the extended info after the RNDIS request message. |
| 56 | * It is referenced and sized in a similar way as response_ext. |
Haiyang Zhang | 0f48917 | 2012-08-09 08:04:18 +0000 | [diff] [blame] | 57 | */ |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 58 | u8 request_ext[RNDIS_EXT_LEN]; |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 59 | }; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 60 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 61 | static struct rndis_device *get_rndis_device(void) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 62 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 63 | struct rndis_device *device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 64 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 65 | device = kzalloc(sizeof(struct rndis_device), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 66 | if (!device) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 67 | return NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 68 | |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 69 | spin_lock_init(&device->request_lock); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 70 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 71 | INIT_LIST_HEAD(&device->req_list); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 72 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 73 | device->state = RNDIS_DEV_UNINITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 74 | |
| 75 | return device; |
| 76 | } |
| 77 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 78 | static struct rndis_request *get_rndis_request(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 79 | u32 msg_type, |
| 80 | u32 msg_len) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 81 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 82 | struct rndis_request *request; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 83 | struct rndis_message *rndis_msg; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 84 | struct rndis_set_request *set; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 85 | unsigned long flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 86 | |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 87 | request = kzalloc(sizeof(struct rndis_request), GFP_KERNEL); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 88 | if (!request) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 89 | return NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 90 | |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 91 | init_completion(&request->wait_event); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 92 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 93 | rndis_msg = &request->request_msg; |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 94 | rndis_msg->ndis_msg_type = msg_type; |
| 95 | rndis_msg->msg_len = msg_len; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 96 | |
Haiyang Zhang | 5b54dac | 2014-04-21 10:20:28 -0700 | [diff] [blame] | 97 | request->pkt.q_idx = 0; |
| 98 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 99 | /* |
| 100 | * Set the request id. This field is always after the rndis header for |
| 101 | * request/response packet types so we just used the SetRequest as a |
| 102 | * template |
| 103 | */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 104 | set = &rndis_msg->msg.set_req; |
| 105 | set->req_id = atomic_inc_return(&dev->new_req_id); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 106 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 107 | /* Add to the request list */ |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 108 | spin_lock_irqsave(&dev->request_lock, flags); |
| 109 | list_add_tail(&request->list_ent, &dev->req_list); |
| 110 | spin_unlock_irqrestore(&dev->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 111 | |
| 112 | return request; |
| 113 | } |
| 114 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 115 | static void put_rndis_request(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 116 | struct rndis_request *req) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 117 | { |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 118 | unsigned long flags; |
| 119 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 120 | spin_lock_irqsave(&dev->request_lock, flags); |
| 121 | list_del(&req->list_ent); |
| 122 | spin_unlock_irqrestore(&dev->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 123 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 124 | kfree(req); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 125 | } |
| 126 | |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 127 | static void dump_rndis_message(struct hv_device *hv_dev, |
| 128 | struct rndis_message *rndis_msg) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 129 | { |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 130 | struct net_device *netdev; |
| 131 | struct netvsc_device *net_device; |
| 132 | |
| 133 | net_device = hv_get_drvdata(hv_dev); |
| 134 | netdev = net_device->ndev; |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 135 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 136 | switch (rndis_msg->ndis_msg_type) { |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 137 | case RNDIS_MSG_PACKET: |
| 138 | netdev_dbg(netdev, "RNDIS_MSG_PACKET (len %u, " |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 139 | "data offset %u data len %u, # oob %u, " |
| 140 | "oob offset %u, oob len %u, pkt offset %u, " |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 141 | "pkt len %u\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 142 | rndis_msg->msg_len, |
| 143 | rndis_msg->msg.pkt.data_offset, |
| 144 | rndis_msg->msg.pkt.data_len, |
| 145 | rndis_msg->msg.pkt.num_oob_data_elements, |
| 146 | rndis_msg->msg.pkt.oob_data_offset, |
| 147 | rndis_msg->msg.pkt.oob_data_len, |
| 148 | rndis_msg->msg.pkt.per_pkt_info_offset, |
| 149 | rndis_msg->msg.pkt.per_pkt_info_len); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 150 | break; |
| 151 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 152 | case RNDIS_MSG_INIT_C: |
| 153 | netdev_dbg(netdev, "RNDIS_MSG_INIT_C " |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 154 | "(len %u, id 0x%x, status 0x%x, major %d, minor %d, " |
| 155 | "device flags %d, max xfer size 0x%x, max pkts %u, " |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 156 | "pkt aligned %u)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 157 | rndis_msg->msg_len, |
| 158 | rndis_msg->msg.init_complete.req_id, |
| 159 | rndis_msg->msg.init_complete.status, |
| 160 | rndis_msg->msg.init_complete.major_ver, |
| 161 | rndis_msg->msg.init_complete.minor_ver, |
| 162 | rndis_msg->msg.init_complete.dev_flags, |
| 163 | rndis_msg->msg.init_complete.max_xfer_size, |
| 164 | rndis_msg->msg.init_complete. |
| 165 | max_pkt_per_msg, |
| 166 | rndis_msg->msg.init_complete. |
| 167 | pkt_alignment_factor); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 168 | break; |
| 169 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 170 | case RNDIS_MSG_QUERY_C: |
| 171 | netdev_dbg(netdev, "RNDIS_MSG_QUERY_C " |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 172 | "(len %u, id 0x%x, status 0x%x, buf len %u, " |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 173 | "buf offset %u)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 174 | rndis_msg->msg_len, |
| 175 | rndis_msg->msg.query_complete.req_id, |
| 176 | rndis_msg->msg.query_complete.status, |
| 177 | rndis_msg->msg.query_complete. |
| 178 | info_buflen, |
| 179 | rndis_msg->msg.query_complete. |
| 180 | info_buf_offset); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 181 | break; |
| 182 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 183 | case RNDIS_MSG_SET_C: |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 184 | netdev_dbg(netdev, |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 185 | "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] | 186 | rndis_msg->msg_len, |
| 187 | rndis_msg->msg.set_complete.req_id, |
| 188 | rndis_msg->msg.set_complete.status); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 189 | break; |
| 190 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 191 | case RNDIS_MSG_INDICATE: |
| 192 | netdev_dbg(netdev, "RNDIS_MSG_INDICATE " |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 193 | "(len %u, status 0x%x, buf len %u, buf offset %u)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 194 | rndis_msg->msg_len, |
| 195 | rndis_msg->msg.indicate_status.status, |
| 196 | rndis_msg->msg.indicate_status.status_buflen, |
| 197 | rndis_msg->msg.indicate_status.status_buf_offset); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 198 | break; |
| 199 | |
| 200 | default: |
Haiyang Zhang | 729a284 | 2011-05-27 06:21:54 -0700 | [diff] [blame] | 201 | netdev_dbg(netdev, "0x%x (len %u)\n", |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 202 | rndis_msg->ndis_msg_type, |
| 203 | rndis_msg->msg_len); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 204 | break; |
| 205 | } |
| 206 | } |
| 207 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 208 | static int rndis_filter_send_request(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 209 | struct rndis_request *req) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 210 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 211 | int ret; |
Nicolas Palix | 4193d4f | 2009-07-29 14:10:10 +0200 | [diff] [blame] | 212 | struct hv_netvsc_packet *packet; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 213 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 214 | /* Setup the packet to send it */ |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 215 | packet = &req->pkt; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 216 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 217 | packet->is_data_pkt = false; |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 218 | packet->total_data_buflen = req->request_msg.msg_len; |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 219 | packet->page_buf_cnt = 1; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 220 | |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 221 | packet->page_buf[0].pfn = virt_to_phys(&req->request_msg) >> |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 222 | PAGE_SHIFT; |
Haiyang Zhang | ca623ad | 2011-01-26 12:12:11 -0800 | [diff] [blame] | 223 | packet->page_buf[0].len = req->request_msg.msg_len; |
| 224 | packet->page_buf[0].offset = |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 225 | (unsigned long)&req->request_msg & (PAGE_SIZE - 1); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 226 | |
Haiyang Zhang | 99e3fcf | 2012-10-02 05:30:21 +0000 | [diff] [blame] | 227 | /* Add one page_buf when request_msg crossing page boundary */ |
| 228 | if (packet->page_buf[0].offset + packet->page_buf[0].len > PAGE_SIZE) { |
| 229 | packet->page_buf_cnt++; |
| 230 | packet->page_buf[0].len = PAGE_SIZE - |
| 231 | packet->page_buf[0].offset; |
| 232 | packet->page_buf[1].pfn = virt_to_phys((void *)&req->request_msg |
| 233 | + packet->page_buf[0].len) >> PAGE_SHIFT; |
| 234 | packet->page_buf[1].offset = 0; |
| 235 | packet->page_buf[1].len = req->request_msg.msg_len - |
| 236 | packet->page_buf[0].len; |
| 237 | } |
| 238 | |
Haiyang Zhang | 893f662 | 2014-04-21 14:54:44 -0700 | [diff] [blame] | 239 | packet->send_completion = NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 240 | |
K. Y. Srinivasan | 0ec6ff4 | 2011-05-12 19:34:55 -0700 | [diff] [blame] | 241 | ret = netvsc_send(dev->net_dev->dev, packet); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 242 | return ret; |
| 243 | } |
| 244 | |
Haiyang Zhang | 1b07da5 | 2014-03-04 14:11:06 -0800 | [diff] [blame] | 245 | static void rndis_set_link_state(struct rndis_device *rdev, |
| 246 | struct rndis_request *request) |
| 247 | { |
| 248 | u32 link_status; |
| 249 | struct rndis_query_complete *query_complete; |
| 250 | |
| 251 | query_complete = &request->response_msg.msg.query_complete; |
| 252 | |
| 253 | if (query_complete->status == RNDIS_STATUS_SUCCESS && |
| 254 | query_complete->info_buflen == sizeof(u32)) { |
| 255 | memcpy(&link_status, (void *)((unsigned long)query_complete + |
| 256 | query_complete->info_buf_offset), sizeof(u32)); |
| 257 | rdev->link_state = link_status != 0; |
| 258 | } |
| 259 | } |
| 260 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 261 | static void rndis_filter_receive_response(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 262 | struct rndis_message *resp) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 263 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 264 | struct rndis_request *request = NULL; |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 265 | bool found = false; |
Greg Kroah-Hartman | 880fb89 | 2009-07-15 14:55:29 -0700 | [diff] [blame] | 266 | unsigned long flags; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 267 | struct net_device *ndev; |
| 268 | |
| 269 | ndev = dev->net_dev->ndev; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 270 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 271 | spin_lock_irqsave(&dev->request_lock, flags); |
| 272 | list_for_each_entry(request, &dev->req_list, list_ent) { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 273 | /* |
| 274 | * All request/response message contains RequestId as the 1st |
| 275 | * field |
| 276 | */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 277 | if (request->request_msg.msg.init_req.req_id |
| 278 | == resp->msg.init_complete.req_id) { |
Greg Kroah-Hartman | 0e72761 | 2009-07-15 12:46:44 -0700 | [diff] [blame] | 279 | found = true; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 280 | break; |
| 281 | } |
| 282 | } |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 283 | spin_unlock_irqrestore(&dev->request_lock, flags); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 284 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 285 | if (found) { |
Haiyang Zhang | a3a6cab | 2012-10-02 05:30:24 +0000 | [diff] [blame] | 286 | if (resp->msg_len <= |
| 287 | sizeof(struct rndis_message) + RNDIS_EXT_LEN) { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 288 | memcpy(&request->response_msg, resp, |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 289 | resp->msg_len); |
Haiyang Zhang | 1b07da5 | 2014-03-04 14:11:06 -0800 | [diff] [blame] | 290 | if (request->request_msg.ndis_msg_type == |
| 291 | RNDIS_MSG_QUERY && request->request_msg.msg. |
| 292 | query_req.oid == RNDIS_OID_GEN_MEDIA_CONNECT_STATUS) |
| 293 | rndis_set_link_state(dev, request); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 294 | } else { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 295 | netdev_err(ndev, |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 296 | "rndis response buffer overflow " |
| 297 | "detected (size %u max %zu)\n", |
| 298 | resp->msg_len, |
KY Srinivasan | 86eedac | 2014-02-16 16:38:43 -0800 | [diff] [blame] | 299 | sizeof(struct rndis_message)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 300 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 301 | if (resp->ndis_msg_type == |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 302 | RNDIS_MSG_RESET_C) { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 303 | /* does not have a request id field */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 304 | request->response_msg.msg.reset_complete. |
Linus Walleij | 007e5c8 | 2012-05-11 22:15:59 +0000 | [diff] [blame] | 305 | status = RNDIS_STATUS_BUFFER_OVERFLOW; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 306 | } else { |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 307 | request->response_msg.msg. |
| 308 | init_complete.status = |
Linus Walleij | 007e5c8 | 2012-05-11 22:15:59 +0000 | [diff] [blame] | 309 | RNDIS_STATUS_BUFFER_OVERFLOW; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 310 | } |
| 311 | } |
| 312 | |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 313 | complete(&request->wait_event); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 314 | } else { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 315 | netdev_err(ndev, |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 316 | "no rndis request found for this response " |
| 317 | "(id 0x%x res type 0x%x)\n", |
| 318 | resp->msg.init_complete.req_id, |
| 319 | resp->ndis_msg_type); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 320 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 321 | } |
| 322 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 323 | static void rndis_filter_receive_indicate_status(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 324 | struct rndis_message *resp) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 325 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 326 | struct rndis_indicate_status *indicate = |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 327 | &resp->msg.indicate_status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 328 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 329 | if (indicate->status == RNDIS_STATUS_MEDIA_CONNECT) { |
K. Y. Srinivasan | 39fb6aa | 2011-05-12 19:34:56 -0700 | [diff] [blame] | 330 | netvsc_linkstatus_callback( |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 331 | dev->net_dev->dev, 1); |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 332 | } else if (indicate->status == RNDIS_STATUS_MEDIA_DISCONNECT) { |
K. Y. Srinivasan | 39fb6aa | 2011-05-12 19:34:56 -0700 | [diff] [blame] | 333 | netvsc_linkstatus_callback( |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 334 | dev->net_dev->dev, 0); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 335 | } else { |
| 336 | /* |
| 337 | * TODO: |
| 338 | */ |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 339 | } |
| 340 | } |
| 341 | |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 342 | /* |
| 343 | * Get the Per-Packet-Info with the specified type |
| 344 | * return NULL if not found. |
| 345 | */ |
| 346 | static inline void *rndis_get_ppi(struct rndis_packet *rpkt, u32 type) |
| 347 | { |
| 348 | struct rndis_per_packet_info *ppi; |
| 349 | int len; |
| 350 | |
| 351 | if (rpkt->per_pkt_info_offset == 0) |
| 352 | return NULL; |
| 353 | |
| 354 | ppi = (struct rndis_per_packet_info *)((ulong)rpkt + |
| 355 | rpkt->per_pkt_info_offset); |
| 356 | len = rpkt->per_pkt_info_len; |
| 357 | |
| 358 | while (len > 0) { |
| 359 | if (ppi->type == type) |
| 360 | return (void *)((ulong)ppi + ppi->ppi_offset); |
| 361 | len -= ppi->size; |
| 362 | ppi = (struct rndis_per_packet_info *)((ulong)ppi + ppi->size); |
| 363 | } |
| 364 | |
| 365 | return NULL; |
| 366 | } |
| 367 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 368 | static void rndis_filter_receive_data(struct rndis_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 369 | struct rndis_message *msg, |
| 370 | struct hv_netvsc_packet *pkt) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 371 | { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 372 | struct rndis_packet *rndis_pkt; |
| 373 | u32 data_offset; |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 374 | struct ndis_pkt_8021q_info *vlan; |
KY Srinivasan | e3d605e | 2014-03-08 19:23:16 -0800 | [diff] [blame] | 375 | struct ndis_tcp_ip_checksum_info *csum_info; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 376 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 377 | rndis_pkt = &msg->msg.pkt; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 378 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 379 | /* Remove the rndis header and pass it back up the stack */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 380 | data_offset = RNDIS_HEADER_SIZE + rndis_pkt->data_offset; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 381 | |
Haiyang Zhang | 72a2f5b | 2010-12-10 12:03:58 -0800 | [diff] [blame] | 382 | pkt->total_data_buflen -= data_offset; |
Wei Yongjun | 4b8a8bc | 2012-02-01 20:17:23 +0000 | [diff] [blame] | 383 | |
| 384 | /* |
| 385 | * Make sure we got a valid RNDIS message, now total_data_buflen |
| 386 | * should be the data packet size plus the trailer padding size |
| 387 | */ |
| 388 | if (pkt->total_data_buflen < rndis_pkt->data_len) { |
| 389 | netdev_err(dev->net_dev->ndev, "rndis message buffer " |
| 390 | "overflow detected (got %u, min %u)" |
| 391 | "...dropping this message!\n", |
| 392 | pkt->total_data_buflen, rndis_pkt->data_len); |
| 393 | return; |
| 394 | } |
| 395 | |
| 396 | /* |
| 397 | * Remove the rndis trailer padding from rndis packet message |
| 398 | * rndis_pkt->data_len tell us the real data length, we only copy |
| 399 | * the data packet to the stack, without the rndis trailer padding |
| 400 | */ |
| 401 | pkt->total_data_buflen = rndis_pkt->data_len; |
Haiyang Zhang | 4532634 | 2011-12-15 13:45:15 -0800 | [diff] [blame] | 402 | pkt->data = (void *)((unsigned long)pkt->data + data_offset); |
Haiyang Zhang | 669c1fc | 2011-09-01 12:19:47 -0700 | [diff] [blame] | 403 | |
Haiyang Zhang | 1f5f3a7 | 2012-03-12 10:20:50 +0000 | [diff] [blame] | 404 | vlan = rndis_get_ppi(rndis_pkt, IEEE_8021Q_INFO); |
| 405 | if (vlan) { |
| 406 | pkt->vlan_tci = VLAN_TAG_PRESENT | vlan->vlanid | |
| 407 | (vlan->pri << VLAN_PRIO_SHIFT); |
| 408 | } else { |
| 409 | pkt->vlan_tci = 0; |
| 410 | } |
| 411 | |
KY Srinivasan | e3d605e | 2014-03-08 19:23:16 -0800 | [diff] [blame] | 412 | csum_info = rndis_get_ppi(rndis_pkt, TCPIP_CHKSUM_PKTINFO); |
| 413 | netvsc_recv_callback(dev->net_dev->dev, pkt, csum_info); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 414 | } |
| 415 | |
K. Y. Srinivasan | 5fcc411 | 2011-05-12 19:34:52 -0700 | [diff] [blame] | 416 | int rndis_filter_receive(struct hv_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 417 | struct hv_netvsc_packet *pkt) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 418 | { |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 419 | struct netvsc_device *net_dev = hv_get_drvdata(dev); |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 420 | struct rndis_device *rndis_dev; |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 421 | struct rndis_message *rndis_msg; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 422 | struct net_device *ndev; |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 423 | int ret = 0; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 424 | |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 425 | if (!net_dev) { |
| 426 | ret = -EINVAL; |
| 427 | goto exit; |
| 428 | } |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 429 | |
K. Y. Srinivasan | 715a480 | 2011-10-06 10:10:56 -0700 | [diff] [blame] | 430 | ndev = net_dev->ndev; |
| 431 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 432 | /* Make sure the rndis device state is initialized */ |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 433 | if (!net_dev->extension) { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 434 | netdev_err(ndev, "got rndis message but no rndis device - " |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 435 | "dropping this message!\n"); |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 436 | ret = -ENODEV; |
| 437 | goto exit; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 438 | } |
| 439 | |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 440 | rndis_dev = (struct rndis_device *)net_dev->extension; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 441 | if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 442 | netdev_err(ndev, "got rndis message but rndis device " |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 443 | "uninitialized...dropping this message!\n"); |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 444 | ret = -ENODEV; |
| 445 | goto exit; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 446 | } |
| 447 | |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 448 | rndis_msg = pkt->data; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 449 | |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 450 | dump_rndis_message(dev, rndis_msg); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 451 | |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 452 | switch (rndis_msg->ndis_msg_type) { |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 453 | case RNDIS_MSG_PACKET: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 454 | /* data msg */ |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 455 | rndis_filter_receive_data(rndis_dev, rndis_msg, pkt); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 456 | break; |
| 457 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 458 | case RNDIS_MSG_INIT_C: |
| 459 | case RNDIS_MSG_QUERY_C: |
| 460 | case RNDIS_MSG_SET_C: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 461 | /* completion msgs */ |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 462 | rndis_filter_receive_response(rndis_dev, rndis_msg); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 463 | break; |
| 464 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 465 | case RNDIS_MSG_INDICATE: |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 466 | /* notification msgs */ |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 467 | rndis_filter_receive_indicate_status(rndis_dev, rndis_msg); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 468 | break; |
| 469 | default: |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 470 | netdev_err(ndev, |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 471 | "unhandled rndis message (type %u len %u)\n", |
Haiyang Zhang | ef31bef | 2012-03-12 10:20:49 +0000 | [diff] [blame] | 472 | rndis_msg->ndis_msg_type, |
| 473 | rndis_msg->msg_len); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 474 | break; |
| 475 | } |
| 476 | |
Haiyang Zhang | 63f6921 | 2012-10-02 05:30:23 +0000 | [diff] [blame] | 477 | exit: |
| 478 | if (ret != 0) |
| 479 | pkt->status = NVSP_STAT_FAIL; |
| 480 | |
| 481 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 482 | } |
| 483 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 484 | static int rndis_filter_query_device(struct rndis_device *dev, u32 oid, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 485 | void *result, u32 *result_size) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 486 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 487 | struct rndis_request *request; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 488 | u32 inresult_size = *result_size; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 489 | struct rndis_query_request *query; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 490 | struct rndis_query_complete *query_complete; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 491 | int ret = 0; |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 492 | int t; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 493 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 494 | if (!result) |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 495 | return -EINVAL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 496 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 497 | *result_size = 0; |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 498 | request = get_rndis_request(dev, RNDIS_MSG_QUERY, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 499 | RNDIS_MESSAGE_SIZE(struct rndis_query_request)); |
| 500 | if (!request) { |
K. Y. Srinivasan | de6e058 | 2011-08-25 09:49:18 -0700 | [diff] [blame] | 501 | ret = -ENOMEM; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 502 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 503 | } |
| 504 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 505 | /* Setup the rndis query */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 506 | query = &request->request_msg.msg.query_req; |
| 507 | query->oid = oid; |
| 508 | query->info_buf_offset = sizeof(struct rndis_query_request); |
| 509 | query->info_buflen = 0; |
| 510 | query->dev_vc_handle = 0; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 511 | |
Haiyang Zhang | 5b54dac | 2014-04-21 10:20:28 -0700 | [diff] [blame] | 512 | if (oid == OID_GEN_RECEIVE_SCALE_CAPABILITIES) { |
| 513 | struct ndis_recv_scale_cap *cap; |
| 514 | |
| 515 | request->request_msg.msg_len += |
| 516 | sizeof(struct ndis_recv_scale_cap); |
| 517 | query->info_buflen = sizeof(struct ndis_recv_scale_cap); |
| 518 | cap = (struct ndis_recv_scale_cap *)((unsigned long)query + |
| 519 | query->info_buf_offset); |
| 520 | cap->hdr.type = NDIS_OBJECT_TYPE_RSS_CAPABILITIES; |
| 521 | cap->hdr.rev = NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2; |
| 522 | cap->hdr.size = sizeof(struct ndis_recv_scale_cap); |
| 523 | } |
| 524 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 525 | ret = rndis_filter_send_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 526 | if (ret != 0) |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 527 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 528 | |
K. Y. Srinivasan | 5c5781b3 | 2011-06-16 13:16:35 -0700 | [diff] [blame] | 529 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 530 | if (t == 0) { |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 531 | ret = -ETIMEDOUT; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 532 | goto cleanup; |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 533 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 534 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 535 | /* Copy the response back */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 536 | query_complete = &request->response_msg.msg.query_complete; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 537 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 538 | if (query_complete->info_buflen > inresult_size) { |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 539 | ret = -1; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 540 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 541 | } |
| 542 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 543 | memcpy(result, |
| 544 | (void *)((unsigned long)query_complete + |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 545 | query_complete->info_buf_offset), |
| 546 | query_complete->info_buflen); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 547 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 548 | *result_size = query_complete->info_buflen; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 549 | |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 550 | cleanup: |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 551 | if (request) |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 552 | put_rndis_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 553 | |
| 554 | return ret; |
| 555 | } |
| 556 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 557 | static int rndis_filter_query_device_mac(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 558 | { |
Stephen Hemminger | 9f8bd8b | 2010-05-04 09:58:54 -0700 | [diff] [blame] | 559 | u32 size = ETH_ALEN; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 560 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 561 | return rndis_filter_query_device(dev, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 562 | RNDIS_OID_802_3_PERMANENT_ADDRESS, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 563 | dev->hw_mac_adr, &size); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 564 | } |
| 565 | |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 566 | #define NWADR_STR "NetworkAddress" |
| 567 | #define NWADR_STRLEN 14 |
| 568 | |
| 569 | int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac) |
| 570 | { |
| 571 | struct netvsc_device *nvdev = hv_get_drvdata(hdev); |
| 572 | struct rndis_device *rdev = nvdev->extension; |
| 573 | struct net_device *ndev = nvdev->ndev; |
| 574 | struct rndis_request *request; |
| 575 | struct rndis_set_request *set; |
| 576 | struct rndis_config_parameter_info *cpi; |
| 577 | wchar_t *cfg_nwadr, *cfg_mac; |
| 578 | struct rndis_set_complete *set_complete; |
| 579 | char macstr[2*ETH_ALEN+1]; |
| 580 | u32 extlen = sizeof(struct rndis_config_parameter_info) + |
| 581 | 2*NWADR_STRLEN + 4*ETH_ALEN; |
| 582 | int ret, t; |
| 583 | |
| 584 | request = get_rndis_request(rdev, RNDIS_MSG_SET, |
| 585 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + extlen); |
| 586 | if (!request) |
| 587 | return -ENOMEM; |
| 588 | |
| 589 | set = &request->request_msg.msg.set_req; |
| 590 | set->oid = RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER; |
| 591 | set->info_buflen = extlen; |
| 592 | set->info_buf_offset = sizeof(struct rndis_set_request); |
| 593 | set->dev_vc_handle = 0; |
| 594 | |
| 595 | cpi = (struct rndis_config_parameter_info *)((ulong)set + |
| 596 | set->info_buf_offset); |
| 597 | cpi->parameter_name_offset = |
| 598 | sizeof(struct rndis_config_parameter_info); |
| 599 | /* Multiply by 2 because host needs 2 bytes (utf16) for each char */ |
| 600 | cpi->parameter_name_length = 2*NWADR_STRLEN; |
| 601 | cpi->parameter_type = RNDIS_CONFIG_PARAM_TYPE_STRING; |
| 602 | cpi->parameter_value_offset = |
| 603 | cpi->parameter_name_offset + cpi->parameter_name_length; |
| 604 | /* Multiply by 4 because each MAC byte displayed as 2 utf16 chars */ |
| 605 | cpi->parameter_value_length = 4*ETH_ALEN; |
| 606 | |
| 607 | cfg_nwadr = (wchar_t *)((ulong)cpi + cpi->parameter_name_offset); |
| 608 | cfg_mac = (wchar_t *)((ulong)cpi + cpi->parameter_value_offset); |
| 609 | ret = utf8s_to_utf16s(NWADR_STR, NWADR_STRLEN, UTF16_HOST_ENDIAN, |
| 610 | cfg_nwadr, NWADR_STRLEN); |
| 611 | if (ret < 0) |
| 612 | goto cleanup; |
| 613 | snprintf(macstr, 2*ETH_ALEN+1, "%pm", mac); |
| 614 | ret = utf8s_to_utf16s(macstr, 2*ETH_ALEN, UTF16_HOST_ENDIAN, |
| 615 | cfg_mac, 2*ETH_ALEN); |
| 616 | if (ret < 0) |
| 617 | goto cleanup; |
| 618 | |
| 619 | ret = rndis_filter_send_request(rdev, request); |
| 620 | if (ret != 0) |
| 621 | goto cleanup; |
| 622 | |
| 623 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
| 624 | if (t == 0) { |
| 625 | netdev_err(ndev, "timeout before we got a set response...\n"); |
| 626 | /* |
| 627 | * can't put_rndis_request, since we may still receive a |
| 628 | * send-completion. |
| 629 | */ |
| 630 | return -EBUSY; |
| 631 | } else { |
| 632 | set_complete = &request->response_msg.msg.set_complete; |
Haiyang Zhang | b02a806 | 2012-11-30 09:23:41 +0000 | [diff] [blame] | 633 | if (set_complete->status != RNDIS_STATUS_SUCCESS) { |
| 634 | netdev_err(ndev, "Fail to set MAC on host side:0x%x\n", |
| 635 | set_complete->status); |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 636 | ret = -EINVAL; |
Haiyang Zhang | b02a806 | 2012-11-30 09:23:41 +0000 | [diff] [blame] | 637 | } |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 638 | } |
| 639 | |
| 640 | cleanup: |
| 641 | put_rndis_request(rdev, request); |
| 642 | return ret; |
| 643 | } |
| 644 | |
KY Srinivasan | 4a0e70a | 2014-03-08 19:23:15 -0800 | [diff] [blame] | 645 | int rndis_filter_set_offload_params(struct hv_device *hdev, |
| 646 | struct ndis_offload_params *req_offloads) |
| 647 | { |
| 648 | struct netvsc_device *nvdev = hv_get_drvdata(hdev); |
| 649 | struct rndis_device *rdev = nvdev->extension; |
| 650 | struct net_device *ndev = nvdev->ndev; |
| 651 | struct rndis_request *request; |
| 652 | struct rndis_set_request *set; |
| 653 | struct ndis_offload_params *offload_params; |
| 654 | struct rndis_set_complete *set_complete; |
| 655 | u32 extlen = sizeof(struct ndis_offload_params); |
| 656 | int ret, t; |
KY Srinivasan | af9893a | 2014-04-09 15:00:47 -0700 | [diff] [blame] | 657 | u32 vsp_version = nvdev->nvsp_version; |
| 658 | |
| 659 | if (vsp_version <= NVSP_PROTOCOL_VERSION_4) { |
| 660 | extlen = VERSION_4_OFFLOAD_SIZE; |
| 661 | /* On NVSP_PROTOCOL_VERSION_4 and below, we do not support |
| 662 | * UDP checksum offload. |
| 663 | */ |
| 664 | req_offloads->udp_ip_v4_csum = 0; |
| 665 | req_offloads->udp_ip_v6_csum = 0; |
| 666 | } |
KY Srinivasan | 4a0e70a | 2014-03-08 19:23:15 -0800 | [diff] [blame] | 667 | |
| 668 | request = get_rndis_request(rdev, RNDIS_MSG_SET, |
| 669 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + extlen); |
| 670 | if (!request) |
| 671 | return -ENOMEM; |
| 672 | |
| 673 | set = &request->request_msg.msg.set_req; |
| 674 | set->oid = OID_TCP_OFFLOAD_PARAMETERS; |
| 675 | set->info_buflen = extlen; |
| 676 | set->info_buf_offset = sizeof(struct rndis_set_request); |
| 677 | set->dev_vc_handle = 0; |
| 678 | |
| 679 | offload_params = (struct ndis_offload_params *)((ulong)set + |
| 680 | set->info_buf_offset); |
| 681 | *offload_params = *req_offloads; |
| 682 | offload_params->header.type = NDIS_OBJECT_TYPE_DEFAULT; |
| 683 | offload_params->header.revision = NDIS_OFFLOAD_PARAMETERS_REVISION_3; |
| 684 | offload_params->header.size = extlen; |
| 685 | |
| 686 | ret = rndis_filter_send_request(rdev, request); |
| 687 | if (ret != 0) |
| 688 | goto cleanup; |
| 689 | |
| 690 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
| 691 | if (t == 0) { |
| 692 | netdev_err(ndev, "timeout before we got aOFFLOAD set response...\n"); |
| 693 | /* can't put_rndis_request, since we may still receive a |
| 694 | * send-completion. |
| 695 | */ |
| 696 | return -EBUSY; |
| 697 | } else { |
| 698 | set_complete = &request->response_msg.msg.set_complete; |
| 699 | if (set_complete->status != RNDIS_STATUS_SUCCESS) { |
KY Srinivasan | af9893a | 2014-04-09 15:00:47 -0700 | [diff] [blame] | 700 | netdev_err(ndev, "Fail to set offload on host side:0x%x\n", |
KY Srinivasan | 4a0e70a | 2014-03-08 19:23:15 -0800 | [diff] [blame] | 701 | set_complete->status); |
| 702 | ret = -EINVAL; |
| 703 | } |
| 704 | } |
| 705 | |
| 706 | cleanup: |
| 707 | put_rndis_request(rdev, request); |
| 708 | return ret; |
| 709 | } |
Haiyang Zhang | 1ce09e8 | 2012-07-10 07:19:22 +0000 | [diff] [blame] | 710 | |
Haiyang Zhang | 5b54dac | 2014-04-21 10:20:28 -0700 | [diff] [blame] | 711 | u8 netvsc_hash_key[HASH_KEYLEN] = { |
| 712 | 0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, |
| 713 | 0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0, |
| 714 | 0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, 0x30, 0xb4, |
| 715 | 0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, 0xf2, 0x0c, |
| 716 | 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa |
| 717 | }; |
| 718 | |
| 719 | int rndis_filter_set_rss_param(struct rndis_device *rdev, int num_queue) |
| 720 | { |
| 721 | struct net_device *ndev = rdev->net_dev->ndev; |
| 722 | struct rndis_request *request; |
| 723 | struct rndis_set_request *set; |
| 724 | struct rndis_set_complete *set_complete; |
| 725 | u32 extlen = sizeof(struct ndis_recv_scale_param) + |
| 726 | 4*ITAB_NUM + HASH_KEYLEN; |
| 727 | struct ndis_recv_scale_param *rssp; |
| 728 | u32 *itab; |
| 729 | u8 *keyp; |
| 730 | int i, t, ret; |
| 731 | |
| 732 | request = get_rndis_request( |
| 733 | rdev, RNDIS_MSG_SET, |
| 734 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + extlen); |
| 735 | if (!request) |
| 736 | return -ENOMEM; |
| 737 | |
| 738 | set = &request->request_msg.msg.set_req; |
| 739 | set->oid = OID_GEN_RECEIVE_SCALE_PARAMETERS; |
| 740 | set->info_buflen = extlen; |
| 741 | set->info_buf_offset = sizeof(struct rndis_set_request); |
| 742 | set->dev_vc_handle = 0; |
| 743 | |
| 744 | rssp = (struct ndis_recv_scale_param *)(set + 1); |
| 745 | rssp->hdr.type = NDIS_OBJECT_TYPE_RSS_PARAMETERS; |
| 746 | rssp->hdr.rev = NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2; |
| 747 | rssp->hdr.size = sizeof(struct ndis_recv_scale_param); |
| 748 | rssp->flag = 0; |
| 749 | rssp->hashinfo = NDIS_HASH_FUNC_TOEPLITZ | NDIS_HASH_IPV4 | |
| 750 | NDIS_HASH_TCP_IPV4; |
| 751 | rssp->indirect_tabsize = 4*ITAB_NUM; |
| 752 | rssp->indirect_taboffset = sizeof(struct ndis_recv_scale_param); |
| 753 | rssp->hashkey_size = HASH_KEYLEN; |
| 754 | rssp->kashkey_offset = rssp->indirect_taboffset + |
| 755 | rssp->indirect_tabsize; |
| 756 | |
| 757 | /* Set indirection table entries */ |
| 758 | itab = (u32 *)(rssp + 1); |
| 759 | for (i = 0; i < ITAB_NUM; i++) |
| 760 | itab[i] = i % num_queue; |
| 761 | |
| 762 | /* Set hask key values */ |
| 763 | keyp = (u8 *)((unsigned long)rssp + rssp->kashkey_offset); |
| 764 | for (i = 0; i < HASH_KEYLEN; i++) |
| 765 | keyp[i] = netvsc_hash_key[i]; |
| 766 | |
| 767 | |
| 768 | ret = rndis_filter_send_request(rdev, request); |
| 769 | if (ret != 0) |
| 770 | goto cleanup; |
| 771 | |
| 772 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
| 773 | if (t == 0) { |
| 774 | netdev_err(ndev, "timeout before we got a set response...\n"); |
| 775 | /* can't put_rndis_request, since we may still receive a |
| 776 | * send-completion. |
| 777 | */ |
| 778 | return -ETIMEDOUT; |
| 779 | } else { |
| 780 | set_complete = &request->response_msg.msg.set_complete; |
| 781 | if (set_complete->status != RNDIS_STATUS_SUCCESS) { |
| 782 | netdev_err(ndev, "Fail to set RSS parameters:0x%x\n", |
| 783 | set_complete->status); |
| 784 | ret = -EINVAL; |
| 785 | } |
| 786 | } |
| 787 | |
| 788 | cleanup: |
| 789 | put_rndis_request(rdev, request); |
| 790 | return ret; |
| 791 | } |
| 792 | |
| 793 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 794 | static int rndis_filter_query_device_link_status(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 795 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 796 | u32 size = sizeof(u32); |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 797 | u32 link_status; |
| 798 | int ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 799 | |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 800 | ret = rndis_filter_query_device(dev, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 801 | RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 802 | &link_status, &size); |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 803 | |
| 804 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 805 | } |
| 806 | |
Haiyang Zhang | d426b2e | 2011-11-30 07:19:08 -0800 | [diff] [blame] | 807 | 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] | 808 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 809 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 810 | struct rndis_set_request *set; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 811 | struct rndis_set_complete *set_complete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 812 | u32 status; |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 813 | int ret, t; |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 814 | struct net_device *ndev; |
| 815 | |
| 816 | ndev = dev->net_dev->ndev; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 817 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 818 | request = get_rndis_request(dev, RNDIS_MSG_SET, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 819 | RNDIS_MESSAGE_SIZE(struct rndis_set_request) + |
| 820 | sizeof(u32)); |
| 821 | if (!request) { |
K. Y. Srinivasan | 58ef397 | 2011-08-25 09:49:19 -0700 | [diff] [blame] | 822 | ret = -ENOMEM; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 823 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 824 | } |
| 825 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 826 | /* Setup the rndis set */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 827 | set = &request->request_msg.msg.set_req; |
| 828 | set->oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER; |
| 829 | set->info_buflen = sizeof(u32); |
| 830 | set->info_buf_offset = sizeof(struct rndis_set_request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 831 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 832 | memcpy((void *)(unsigned long)set + sizeof(struct rndis_set_request), |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 833 | &new_filter, sizeof(u32)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 834 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 835 | ret = rndis_filter_send_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 836 | if (ret != 0) |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 837 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 838 | |
K. Y. Srinivasan | 5c5781b3 | 2011-06-16 13:16:35 -0700 | [diff] [blame] | 839 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 840 | |
| 841 | if (t == 0) { |
Haiyang Zhang | d987115 | 2011-09-01 12:19:41 -0700 | [diff] [blame] | 842 | netdev_err(ndev, |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 843 | "timeout before we got a set response...\n"); |
Haiyang Zhang | ea49637 | 2012-10-02 05:30:20 +0000 | [diff] [blame] | 844 | ret = -ETIMEDOUT; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 845 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 846 | * 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] | 847 | * send completion for it. |
| 848 | */ |
K. Y. Srinivasan | 5585d81 | 2011-08-25 09:49:25 -0700 | [diff] [blame] | 849 | goto exit; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 850 | } else { |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 851 | set_complete = &request->response_msg.msg.set_complete; |
| 852 | status = set_complete->status; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 853 | } |
| 854 | |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 855 | cleanup: |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 856 | if (request) |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 857 | put_rndis_request(dev, request); |
K. Y. Srinivasan | 5585d81 | 2011-08-25 09:49:25 -0700 | [diff] [blame] | 858 | exit: |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 859 | return ret; |
| 860 | } |
| 861 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 862 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 863 | static int rndis_filter_init_device(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 864 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 865 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 866 | struct rndis_initialize_request *init; |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 867 | struct rndis_initialize_complete *init_complete; |
Greg Kroah-Hartman | 4d64311 | 2009-07-14 15:09:36 -0700 | [diff] [blame] | 868 | u32 status; |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 869 | int ret, t; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 870 | |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 871 | request = get_rndis_request(dev, RNDIS_MSG_INIT, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 872 | RNDIS_MESSAGE_SIZE(struct rndis_initialize_request)); |
| 873 | if (!request) { |
K. Y. Srinivasan | bc49b926 | 2011-08-25 09:49:20 -0700 | [diff] [blame] | 874 | ret = -ENOMEM; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 875 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 876 | } |
| 877 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 878 | /* Setup the rndis set */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 879 | init = &request->request_msg.msg.init_req; |
| 880 | init->major_ver = RNDIS_MAJOR_VERSION; |
| 881 | init->minor_ver = RNDIS_MINOR_VERSION; |
Haiyang Zhang | fb1d074 | 2012-10-02 05:30:19 +0000 | [diff] [blame] | 882 | init->max_xfer_size = 0x4000; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 883 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 884 | dev->state = RNDIS_DEV_INITIALIZING; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 885 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 886 | ret = rndis_filter_send_request(dev, request); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 887 | if (ret != 0) { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 888 | dev->state = RNDIS_DEV_UNINITIALIZED; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 889 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 890 | } |
| 891 | |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 892 | |
K. Y. Srinivasan | 5c5781b3 | 2011-06-16 13:16:35 -0700 | [diff] [blame] | 893 | t = wait_for_completion_timeout(&request->wait_event, 5*HZ); |
K. Y. Srinivasan | 98d7969 | 2011-05-10 07:55:42 -0700 | [diff] [blame] | 894 | |
| 895 | if (t == 0) { |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 896 | ret = -ETIMEDOUT; |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 897 | goto cleanup; |
K. Y. Srinivasan | 0c3b7b2 | 2011-02-11 09:59:43 -0800 | [diff] [blame] | 898 | } |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 899 | |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 900 | init_complete = &request->response_msg.msg.init_complete; |
| 901 | status = init_complete->status; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 902 | if (status == RNDIS_STATUS_SUCCESS) { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 903 | dev->state = RNDIS_DEV_INITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 904 | ret = 0; |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 905 | } else { |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 906 | dev->state = RNDIS_DEV_UNINITIALIZED; |
K. Y. Srinivasan | bc49b926 | 2011-08-25 09:49:20 -0700 | [diff] [blame] | 907 | ret = -EINVAL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 908 | } |
| 909 | |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 910 | cleanup: |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 911 | if (request) |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 912 | put_rndis_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 913 | |
| 914 | return ret; |
| 915 | } |
| 916 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 917 | static void rndis_filter_halt_device(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 918 | { |
Greg Kroah-Hartman | e681b95 | 2009-08-28 16:26:27 -0700 | [diff] [blame] | 919 | struct rndis_request *request; |
Greg Kroah-Hartman | 9f33d05 | 2009-08-19 16:26:24 -0700 | [diff] [blame] | 920 | struct rndis_halt_request *halt; |
Haiyang Zhang | ae9e63b | 2012-08-03 09:32:18 +0000 | [diff] [blame] | 921 | struct netvsc_device *nvdev = dev->net_dev; |
| 922 | struct hv_device *hdev = nvdev->dev; |
| 923 | ulong flags; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 924 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 925 | /* Attempt to do a rndis device halt */ |
Linus Walleij | 5149116 | 2012-05-11 22:17:07 +0000 | [diff] [blame] | 926 | request = get_rndis_request(dev, RNDIS_MSG_HALT, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 927 | RNDIS_MESSAGE_SIZE(struct rndis_halt_request)); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 928 | if (!request) |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 929 | goto cleanup; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 930 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 931 | /* Setup the rndis set */ |
Haiyang Zhang | a388eb1 | 2010-12-10 12:04:00 -0800 | [diff] [blame] | 932 | halt = &request->request_msg.msg.halt_req; |
| 933 | halt->req_id = atomic_inc_return(&dev->new_req_id); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 934 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 935 | /* Ignore return since this msg is optional. */ |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 936 | rndis_filter_send_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 937 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 938 | dev->state = RNDIS_DEV_UNINITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 939 | |
K. Y. Srinivasan | 1c62787 | 2011-08-25 09:49:24 -0700 | [diff] [blame] | 940 | cleanup: |
Haiyang Zhang | ae9e63b | 2012-08-03 09:32:18 +0000 | [diff] [blame] | 941 | spin_lock_irqsave(&hdev->channel->inbound_lock, flags); |
| 942 | nvdev->destroy = true; |
| 943 | spin_unlock_irqrestore(&hdev->channel->inbound_lock, flags); |
| 944 | |
| 945 | /* Wait for all send completions */ |
| 946 | wait_event(nvdev->wait_drain, |
| 947 | atomic_read(&nvdev->num_outstanding_sends) == 0); |
| 948 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 949 | if (request) |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 950 | put_rndis_request(dev, request); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 951 | return; |
| 952 | } |
| 953 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 954 | static int rndis_filter_open_device(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 955 | { |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 956 | int ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 957 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 958 | if (dev->state != RNDIS_DEV_INITIALIZED) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 959 | return 0; |
| 960 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 961 | ret = rndis_filter_set_packet_filter(dev, |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 962 | NDIS_PACKET_TYPE_BROADCAST | |
Haiyang Zhang | 95beae9 | 2010-04-19 15:32:11 +0000 | [diff] [blame] | 963 | NDIS_PACKET_TYPE_ALL_MULTICAST | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 964 | NDIS_PACKET_TYPE_DIRECTED); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 965 | if (ret == 0) |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 966 | dev->state = RNDIS_DEV_DATAINITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 967 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 968 | return ret; |
| 969 | } |
| 970 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 971 | static int rndis_filter_close_device(struct rndis_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 972 | { |
| 973 | int ret; |
| 974 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 975 | if (dev->state != RNDIS_DEV_DATAINITIALIZED) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 976 | return 0; |
| 977 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 978 | ret = rndis_filter_set_packet_filter(dev, 0); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 979 | if (ret == 0) |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 980 | dev->state = RNDIS_DEV_INITIALIZED; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 981 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 982 | return ret; |
| 983 | } |
| 984 | |
Haiyang Zhang | 5b54dac | 2014-04-21 10:20:28 -0700 | [diff] [blame] | 985 | static void netvsc_sc_open(struct vmbus_channel *new_sc) |
| 986 | { |
| 987 | struct netvsc_device *nvscdev; |
| 988 | u16 chn_index = new_sc->offermsg.offer.sub_channel_index; |
| 989 | int ret; |
| 990 | |
| 991 | nvscdev = hv_get_drvdata(new_sc->primary_channel->device_obj); |
| 992 | |
| 993 | if (chn_index >= nvscdev->num_chn) |
| 994 | return; |
| 995 | |
| 996 | set_per_channel_state(new_sc, nvscdev->sub_cb_buf + (chn_index - 1) * |
| 997 | NETVSC_PACKET_SIZE); |
| 998 | |
| 999 | ret = vmbus_open(new_sc, nvscdev->ring_size * PAGE_SIZE, |
| 1000 | nvscdev->ring_size * PAGE_SIZE, NULL, 0, |
| 1001 | netvsc_channel_cb, new_sc); |
| 1002 | |
| 1003 | if (ret == 0) |
| 1004 | nvscdev->chn_table[chn_index] = new_sc; |
| 1005 | } |
| 1006 | |
Haiyang Zhang | bdbad57 | 2011-05-23 09:03:49 -0700 | [diff] [blame] | 1007 | int rndis_filter_device_add(struct hv_device *dev, |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 1008 | void *additional_info) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1009 | { |
| 1010 | int ret; |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 1011 | struct netvsc_device *net_device; |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 1012 | struct rndis_device *rndis_device; |
K. Y. Srinivasan | 3c4deba | 2011-09-13 10:59:56 -0700 | [diff] [blame] | 1013 | struct netvsc_device_info *device_info = additional_info; |
KY Srinivasan | 4a0e70a | 2014-03-08 19:23:15 -0800 | [diff] [blame] | 1014 | struct ndis_offload_params offloads; |
Haiyang Zhang | 5b54dac | 2014-04-21 10:20:28 -0700 | [diff] [blame] | 1015 | struct nvsp_message *init_packet; |
| 1016 | int t; |
| 1017 | struct ndis_recv_scale_cap rsscap; |
| 1018 | u32 rsscap_size = sizeof(struct ndis_recv_scale_cap); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1019 | |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 1020 | rndis_device = get_rndis_device(); |
| 1021 | if (!rndis_device) |
K. Y. Srinivasan | 327efba | 2011-08-25 09:49:21 -0700 | [diff] [blame] | 1022 | return -ENODEV; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1023 | |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 1024 | /* |
| 1025 | * Let the inner driver handle this first to create the netvsc channel |
| 1026 | * NOTE! Once the channel is created, we may get a receive callback |
| 1027 | * (RndisFilterOnReceive()) before this call is completed |
| 1028 | */ |
K. Y. Srinivasan | ce5bf66 | 2011-05-10 07:55:00 -0700 | [diff] [blame] | 1029 | ret = netvsc_device_add(dev, additional_info); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 1030 | if (ret != 0) { |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 1031 | kfree(rndis_device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1032 | return ret; |
| 1033 | } |
| 1034 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1035 | |
| 1036 | /* Initialize the rndis device */ |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 1037 | net_device = hv_get_drvdata(dev); |
Haiyang Zhang | 5b54dac | 2014-04-21 10:20:28 -0700 | [diff] [blame] | 1038 | net_device->num_chn = 1; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1039 | |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 1040 | net_device->extension = rndis_device; |
| 1041 | rndis_device->net_dev = net_device; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1042 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1043 | /* Send the rndis initialization message */ |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 1044 | ret = rndis_filter_init_device(rndis_device); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 1045 | if (ret != 0) { |
Haiyang Zhang | 5243e7b | 2012-07-25 08:08:42 +0000 | [diff] [blame] | 1046 | rndis_filter_device_remove(dev); |
| 1047 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1048 | } |
| 1049 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1050 | /* Get the mac address */ |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 1051 | ret = rndis_filter_query_device_mac(rndis_device); |
Greg Kroah-Hartman | 0120ee0 | 2009-09-02 09:17:52 -0700 | [diff] [blame] | 1052 | if (ret != 0) { |
Haiyang Zhang | 5243e7b | 2012-07-25 08:08:42 +0000 | [diff] [blame] | 1053 | rndis_filter_device_remove(dev); |
| 1054 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1055 | } |
| 1056 | |
K. Y. Srinivasan | 3c4deba | 2011-09-13 10:59:56 -0700 | [diff] [blame] | 1057 | memcpy(device_info->mac_adr, rndis_device->hw_mac_adr, ETH_ALEN); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1058 | |
KY Srinivasan | 4a0e70a | 2014-03-08 19:23:15 -0800 | [diff] [blame] | 1059 | /* Turn on the offloads; the host supports all of the relevant |
| 1060 | * offloads. |
| 1061 | */ |
| 1062 | memset(&offloads, 0, sizeof(struct ndis_offload_params)); |
| 1063 | /* A value of zero means "no change"; now turn on what we |
| 1064 | * want. |
| 1065 | */ |
| 1066 | offloads.ip_v4_csum = NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; |
| 1067 | offloads.tcp_ip_v4_csum = NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; |
| 1068 | offloads.udp_ip_v4_csum = NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; |
| 1069 | offloads.tcp_ip_v6_csum = NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; |
| 1070 | offloads.udp_ip_v6_csum = NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; |
| 1071 | offloads.lso_v2_ipv4 = NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED; |
| 1072 | |
| 1073 | |
| 1074 | ret = rndis_filter_set_offload_params(dev, &offloads); |
| 1075 | if (ret) |
| 1076 | goto err_dev_remv; |
| 1077 | |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 1078 | rndis_filter_query_device_link_status(rndis_device); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1079 | |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 1080 | device_info->link_state = rndis_device->link_state; |
Hank Janssen | eb335bc | 2011-03-29 13:58:48 -0700 | [diff] [blame] | 1081 | |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 1082 | dev_info(&dev->device, "Device MAC %pM link state %s\n", |
K. Y. Srinivasan | b13cc34 | 2011-09-13 10:59:55 -0700 | [diff] [blame] | 1083 | rndis_device->hw_mac_adr, |
K. Y. Srinivasan | 6f27457 | 2011-09-13 15:21:27 -0700 | [diff] [blame] | 1084 | device_info->link_state ? "down" : "up"); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1085 | |
Haiyang Zhang | 5b54dac | 2014-04-21 10:20:28 -0700 | [diff] [blame] | 1086 | if (net_device->nvsp_version < NVSP_PROTOCOL_VERSION_5) |
| 1087 | return 0; |
| 1088 | |
| 1089 | /* vRSS setup */ |
| 1090 | memset(&rsscap, 0, rsscap_size); |
| 1091 | ret = rndis_filter_query_device(rndis_device, |
| 1092 | OID_GEN_RECEIVE_SCALE_CAPABILITIES, |
| 1093 | &rsscap, &rsscap_size); |
| 1094 | if (ret || rsscap.num_recv_que < 2) |
| 1095 | goto out; |
| 1096 | |
| 1097 | net_device->num_chn = (num_online_cpus() < rsscap.num_recv_que) ? |
| 1098 | num_online_cpus() : rsscap.num_recv_que; |
| 1099 | if (net_device->num_chn == 1) |
| 1100 | goto out; |
| 1101 | |
| 1102 | net_device->sub_cb_buf = vzalloc((net_device->num_chn - 1) * |
| 1103 | NETVSC_PACKET_SIZE); |
| 1104 | if (!net_device->sub_cb_buf) { |
| 1105 | net_device->num_chn = 1; |
| 1106 | dev_info(&dev->device, "No memory for subchannels.\n"); |
| 1107 | goto out; |
| 1108 | } |
| 1109 | |
| 1110 | vmbus_set_sc_create_callback(dev->channel, netvsc_sc_open); |
| 1111 | |
| 1112 | init_packet = &net_device->channel_init_pkt; |
| 1113 | memset(init_packet, 0, sizeof(struct nvsp_message)); |
| 1114 | init_packet->hdr.msg_type = NVSP_MSG5_TYPE_SUBCHANNEL; |
| 1115 | init_packet->msg.v5_msg.subchn_req.op = NVSP_SUBCHANNEL_ALLOCATE; |
| 1116 | init_packet->msg.v5_msg.subchn_req.num_subchannels = |
| 1117 | net_device->num_chn - 1; |
| 1118 | ret = vmbus_sendpacket(dev->channel, init_packet, |
| 1119 | sizeof(struct nvsp_message), |
| 1120 | (unsigned long)init_packet, |
| 1121 | VM_PKT_DATA_INBAND, |
| 1122 | VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED); |
| 1123 | if (ret) |
| 1124 | goto out; |
| 1125 | t = wait_for_completion_timeout(&net_device->channel_init_wait, 5*HZ); |
| 1126 | if (t == 0) { |
| 1127 | ret = -ETIMEDOUT; |
| 1128 | goto out; |
| 1129 | } |
| 1130 | if (init_packet->msg.v5_msg.subchn_comp.status != |
| 1131 | NVSP_STAT_SUCCESS) { |
| 1132 | ret = -ENODEV; |
| 1133 | goto out; |
| 1134 | } |
| 1135 | net_device->num_chn = 1 + |
| 1136 | init_packet->msg.v5_msg.subchn_comp.num_subchannels; |
| 1137 | |
| 1138 | vmbus_are_subchannels_present(dev->channel); |
| 1139 | |
| 1140 | ret = rndis_filter_set_rss_param(rndis_device, net_device->num_chn); |
| 1141 | |
| 1142 | out: |
| 1143 | if (ret) |
| 1144 | net_device->num_chn = 1; |
| 1145 | return 0; /* return 0 because primary channel can be used alone */ |
KY Srinivasan | 4a0e70a | 2014-03-08 19:23:15 -0800 | [diff] [blame] | 1146 | |
| 1147 | err_dev_remv: |
| 1148 | rndis_filter_device_remove(dev); |
| 1149 | return ret; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1150 | } |
| 1151 | |
Haiyang Zhang | df06bcf | 2011-05-23 09:03:47 -0700 | [diff] [blame] | 1152 | void rndis_filter_device_remove(struct hv_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1153 | { |
K. Y. Srinivasan | 2ddd5e5 | 2011-09-13 10:59:49 -0700 | [diff] [blame] | 1154 | struct netvsc_device *net_dev = hv_get_drvdata(dev); |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 1155 | struct rndis_device *rndis_dev = net_dev->extension; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1156 | |
Bill Pemberton | 454f18a | 2009-07-27 16:47:24 -0400 | [diff] [blame] | 1157 | /* Halt and release the rndis device */ |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 1158 | rndis_filter_halt_device(rndis_dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1159 | |
Haiyang Zhang | c2a4efd | 2010-12-10 12:03:56 -0800 | [diff] [blame] | 1160 | kfree(rndis_dev); |
Haiyang Zhang | 53d21fd | 2010-12-10 12:03:59 -0800 | [diff] [blame] | 1161 | net_dev->extension = NULL; |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1162 | |
K. Y. Srinivasan | 3fae5c8 | 2011-05-10 07:55:02 -0700 | [diff] [blame] | 1163 | netvsc_device_remove(dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1164 | } |
| 1165 | |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1166 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 1167 | int rndis_filter_open(struct hv_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1168 | { |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 1169 | struct netvsc_device *net_device = hv_get_drvdata(dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1170 | |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 1171 | if (!net_device) |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 1172 | return -EINVAL; |
| 1173 | |
K. Y. Srinivasan | 86c921a | 2011-09-13 10:59:54 -0700 | [diff] [blame] | 1174 | return rndis_filter_open_device(net_device->extension); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1175 | } |
| 1176 | |
Haiyang Zhang | 9c26aa0 | 2010-12-10 12:03:57 -0800 | [diff] [blame] | 1177 | int rndis_filter_close(struct hv_device *dev) |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1178 | { |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 1179 | struct netvsc_device *nvdev = hv_get_drvdata(dev); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1180 | |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 1181 | if (!nvdev) |
Bill Pemberton | 8a62d71 | 2010-05-05 15:27:47 -0400 | [diff] [blame] | 1182 | return -EINVAL; |
| 1183 | |
Haiyang Zhang | 5fccab3 | 2012-02-05 12:13:08 +0000 | [diff] [blame] | 1184 | return rndis_filter_close_device(nvdev->extension); |
Hank Janssen | fceaf24 | 2009-07-13 15:34:54 -0700 | [diff] [blame] | 1185 | } |