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Commit | Line | Data |
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ecdfa446 | 1 | /****************************************************************************** |
eb9eb87d DA |
2 | * |
3 | * Copyright(c) 2003 - 2004 Intel Corporation. All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * The full GNU General Public License is included in this distribution in the | |
15 | * file called LICENSE. | |
16 | * | |
17 | * Contact Information: | |
18 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
19 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
20 | * | |
21 | ***************************************************************************** | |
22 | * | |
23 | * Few modifications for Realtek's Wi-Fi drivers by | |
24 | * Andrea Merello <andrea.merello@gmail.com> | |
25 | * | |
26 | * A special thanks goes to Realtek for their support ! | |
27 | * | |
28 | *****************************************************************************/ | |
ecdfa446 GKH |
29 | |
30 | #include <linux/compiler.h> | |
ecdfa446 GKH |
31 | #include <linux/errno.h> |
32 | #include <linux/if_arp.h> | |
33 | #include <linux/in6.h> | |
34 | #include <linux/in.h> | |
35 | #include <linux/ip.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/module.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/pci.h> | |
40 | #include <linux/proc_fs.h> | |
41 | #include <linux/skbuff.h> | |
42 | #include <linux/slab.h> | |
43 | #include <linux/tcp.h> | |
44 | #include <linux/types.h> | |
ecdfa446 GKH |
45 | #include <linux/wireless.h> |
46 | #include <linux/etherdevice.h> | |
f38d223b | 47 | #include <linux/uaccess.h> |
ecdfa446 GKH |
48 | #include <linux/if_vlan.h> |
49 | ||
94a79942 | 50 | #include "rtllib.h" |
ecdfa446 | 51 | |
14b40d92 MK |
52 | /* 802.11 Data Frame |
53 | * | |
54 | * | |
55 | * 802.11 frame_control for data frames - 2 bytes | |
35e33b04 MK |
56 | * ,--------------------------------------------------------------------. |
57 | * bits | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | a | b | c | d | e | | |
58 | * |---|---|---|---|---|---|---|---|---|----|----|-----|-----|-----|----| | |
59 | * val | 0 | 0 | 0 | 1 | x | 0 | 0 | 0 | 1 | 0 | x | x | x | x | x | | |
60 | * |---|---|---|---|---|---|---|---|---|----|----|-----|-----|-----|----| | |
61 | * desc | ver | type | ^-subtype-^ |to |from|more|retry| pwr |more |wep | | |
62 | * | | | x=0 data |DS | DS |frag| | mgm |data | | | |
63 | * | | | x=1 data+ack | | | | | | | | | |
64 | * '--------------------------------------------------------------------' | |
65 | * /\ | |
66 | * | | |
67 | * 802.11 Data Frame | | |
68 | * ,--------- 'ctrl' expands to >---' | |
14b40d92 MK |
69 | * | |
70 | * ,--'---,-------------------------------------------------------------. | |
71 | * Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | | |
72 | * |------|------|---------|---------|---------|------|---------|------| | |
73 | * Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | Frame | fcs | | |
74 | * | | tion | (BSSID) | | | ence | data | | | |
75 | * `--------------------------------------------------| |------' | |
76 | * Total: 28 non-data bytes `----.----' | |
77 | * | | |
78 | * .- 'Frame data' expands to <---------------------------' | |
79 | * | | |
80 | * V | |
81 | * ,---------------------------------------------------. | |
82 | * Bytes | 1 | 1 | 1 | 3 | 2 | 0-2304 | | |
83 | * |------|------|---------|----------|------|---------| | |
84 | * Desc. | SNAP | SNAP | Control |Eth Tunnel| Type | IP | | |
85 | * | DSAP | SSAP | | | | Packet | | |
86 | * | 0xAA | 0xAA |0x03 (UI)|0x00-00-F8| | | | |
87 | * `-----------------------------------------| | | |
88 | * Total: 8 non-data bytes `----.----' | |
89 | * | | |
90 | * .- 'IP Packet' expands, if WEP enabled, to <--' | |
91 | * | | |
92 | * V | |
93 | * ,-----------------------. | |
94 | * Bytes | 4 | 0-2296 | 4 | | |
95 | * |-----|-----------|-----| | |
96 | * Desc. | IV | Encrypted | ICV | | |
97 | * | | IP Packet | | | |
98 | * `-----------------------' | |
99 | * Total: 8 non-data bytes | |
100 | * | |
101 | * | |
102 | * 802.3 Ethernet Data Frame | |
103 | * | |
104 | * ,-----------------------------------------. | |
105 | * Bytes | 6 | 6 | 2 | Variable | 4 | | |
106 | * |-------|-------|------|-----------|------| | |
107 | * Desc. | Dest. | Source| Type | IP Packet | fcs | | |
108 | * | MAC | MAC | | | | | |
109 | * `-----------------------------------------' | |
110 | * Total: 18 non-data bytes | |
111 | * | |
35e33b04 MK |
112 | * In the event that fragmentation is required, the incoming payload is split |
113 | * into N parts of size ieee->fts. The first fragment contains the SNAP header | |
114 | * and the remaining packets are just data. | |
14b40d92 | 115 | * |
35e33b04 MK |
116 | * If encryption is enabled, each fragment payload size is reduced by enough |
117 | * space to add the prefix and postfix (IV and ICV totalling 8 bytes in | |
118 | * the case of WEP) So if you have 1500 bytes of payload with ieee->fts set to | |
119 | * 500 without encryption it will take 3 frames. With WEP it will take 4 frames | |
120 | * as the payload of each frame is reduced to 492 bytes. | |
14b40d92 MK |
121 | * |
122 | * SKB visualization | |
123 | * | |
124 | * ,- skb->data | |
125 | * | | |
126 | * | ETHERNET HEADER ,-<-- PAYLOAD | |
127 | * | | 14 bytes from skb->data | |
128 | * | 2 bytes for Type --> ,T. | (sizeof ethhdr) | |
129 | * | | | | | |
130 | * |,-Dest.--. ,--Src.---. | | | | |
131 | * | 6 bytes| | 6 bytes | | | | | |
132 | * v | | | | | | | |
133 | * 0 | v 1 | v | v 2 | |
134 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 | |
135 | * ^ | ^ | ^ | | |
136 | * | | | | | | | |
137 | * | | | | `T' <---- 2 bytes for Type | |
138 | * | | | | | |
139 | * | | '---SNAP--' <-------- 6 bytes for SNAP | |
140 | * | | | |
141 | * `-IV--' <-------------------- 4 bytes for IV (WEP) | |
142 | * | |
143 | * SNAP HEADER | |
144 | * | |
145 | */ | |
ecdfa446 GKH |
146 | |
147 | static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 }; | |
148 | static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 }; | |
149 | ||
511998ea | 150 | static int rtllib_put_snap(u8 *data, u16 h_proto) |
ecdfa446 | 151 | { |
94a79942 | 152 | struct rtllib_snap_hdr *snap; |
ecdfa446 GKH |
153 | u8 *oui; |
154 | ||
94a79942 | 155 | snap = (struct rtllib_snap_hdr *)data; |
ecdfa446 GKH |
156 | snap->dsap = 0xaa; |
157 | snap->ssap = 0xaa; | |
158 | snap->ctrl = 0x03; | |
159 | ||
160 | if (h_proto == 0x8137 || h_proto == 0x80f3) | |
161 | oui = P802_1H_OUI; | |
162 | else | |
163 | oui = RFC1042_OUI; | |
164 | snap->oui[0] = oui[0]; | |
165 | snap->oui[1] = oui[1]; | |
166 | snap->oui[2] = oui[2]; | |
167 | ||
9326c5ca | 168 | *(__be16 *)(data + SNAP_SIZE) = htons(h_proto); |
ecdfa446 GKH |
169 | |
170 | return SNAP_SIZE + sizeof(u16); | |
171 | } | |
172 | ||
f38d223b LF |
173 | int rtllib_encrypt_fragment(struct rtllib_device *ieee, struct sk_buff *frag, |
174 | int hdr_len) | |
ecdfa446 | 175 | { |
32c44cb5 | 176 | struct lib80211_crypt_data *crypt = NULL; |
ecdfa446 GKH |
177 | int res; |
178 | ||
0ddcf5fd | 179 | crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx]; |
94a79942 | 180 | |
f38d223b | 181 | if (!(crypt && crypt->ops)) { |
d69d2054 MK |
182 | netdev_info(ieee->dev, "=========>%s(), crypt is null\n", |
183 | __func__); | |
ecdfa446 GKH |
184 | return -1; |
185 | } | |
ecdfa446 | 186 | /* To encrypt, frame format is: |
14b40d92 MK |
187 | * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) |
188 | */ | |
ecdfa446 | 189 | |
ecdfa446 | 190 | /* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so |
14b40d92 MK |
191 | * call both MSDU and MPDU encryption functions from here. |
192 | */ | |
ecdfa446 GKH |
193 | atomic_inc(&crypt->refcnt); |
194 | res = 0; | |
195 | if (crypt->ops->encrypt_msdu) | |
196 | res = crypt->ops->encrypt_msdu(frag, hdr_len, crypt->priv); | |
197 | if (res == 0 && crypt->ops->encrypt_mpdu) | |
198 | res = crypt->ops->encrypt_mpdu(frag, hdr_len, crypt->priv); | |
199 | ||
200 | atomic_dec(&crypt->refcnt); | |
201 | if (res < 0) { | |
d69d2054 MK |
202 | netdev_info(ieee->dev, "%s: Encryption failed: len=%d.\n", |
203 | ieee->dev->name, frag->len); | |
ecdfa446 GKH |
204 | return -1; |
205 | } | |
206 | ||
207 | return 0; | |
208 | } | |
209 | ||
210 | ||
f38d223b LF |
211 | void rtllib_txb_free(struct rtllib_txb *txb) |
212 | { | |
ecdfa446 GKH |
213 | if (unlikely(!txb)) |
214 | return; | |
ecdfa446 GKH |
215 | kfree(txb); |
216 | } | |
217 | ||
ec0dc6be LF |
218 | static struct rtllib_txb *rtllib_alloc_txb(int nr_frags, int txb_size, |
219 | gfp_t gfp_mask) | |
ecdfa446 | 220 | { |
94a79942 | 221 | struct rtllib_txb *txb; |
ecdfa446 | 222 | int i; |
3a6b70c3 | 223 | |
f38d223b LF |
224 | txb = kmalloc(sizeof(struct rtllib_txb) + (sizeof(u8 *) * nr_frags), |
225 | gfp_mask); | |
ecdfa446 GKH |
226 | if (!txb) |
227 | return NULL; | |
228 | ||
94a79942 | 229 | memset(txb, 0, sizeof(struct rtllib_txb)); |
ecdfa446 | 230 | txb->nr_frags = nr_frags; |
198e0d17 | 231 | txb->frag_size = cpu_to_le16(txb_size); |
ecdfa446 GKH |
232 | |
233 | for (i = 0; i < nr_frags; i++) { | |
234 | txb->fragments[i] = dev_alloc_skb(txb_size); | |
235 | if (unlikely(!txb->fragments[i])) { | |
236 | i--; | |
237 | break; | |
238 | } | |
239 | memset(txb->fragments[i]->cb, 0, sizeof(txb->fragments[i]->cb)); | |
240 | } | |
241 | if (unlikely(i != nr_frags)) { | |
242 | while (i >= 0) | |
243 | dev_kfree_skb_any(txb->fragments[i--]); | |
244 | kfree(txb); | |
245 | return NULL; | |
246 | } | |
247 | return txb; | |
248 | } | |
249 | ||
ec0dc6be | 250 | static int rtllib_classify(struct sk_buff *skb, u8 bIsAmsdu) |
ecdfa446 GKH |
251 | { |
252 | struct ethhdr *eth; | |
253 | struct iphdr *ip; | |
94a79942 | 254 | |
ecdfa446 GKH |
255 | eth = (struct ethhdr *)skb->data; |
256 | if (eth->h_proto != htons(ETH_P_IP)) | |
257 | return 0; | |
258 | ||
72321415 MK |
259 | #ifdef VERBOSE_DEBUG |
260 | print_hex_dump_bytes("rtllib_classify(): ", DUMP_PREFIX_NONE, skb->data, | |
261 | skb->len); | |
262 | #endif | |
ecdfa446 | 263 | ip = ip_hdr(skb); |
ecdfa446 | 264 | switch (ip->tos & 0xfc) { |
94a79942 LF |
265 | case 0x20: |
266 | return 2; | |
267 | case 0x40: | |
268 | return 1; | |
269 | case 0x60: | |
270 | return 3; | |
271 | case 0x80: | |
272 | return 4; | |
273 | case 0xa0: | |
274 | return 5; | |
275 | case 0xc0: | |
276 | return 6; | |
277 | case 0xe0: | |
278 | return 7; | |
279 | default: | |
280 | return 0; | |
ecdfa446 GKH |
281 | } |
282 | } | |
283 | ||
ec0dc6be LF |
284 | static void rtllib_tx_query_agg_cap(struct rtllib_device *ieee, |
285 | struct sk_buff *skb, | |
286 | struct cb_desc *tcb_desc) | |
ecdfa446 | 287 | { |
7796d93e | 288 | struct rt_hi_throughput *pHTInfo = ieee->pHTInfo; |
60554f2b | 289 | struct tx_ts_record *pTxTs = NULL; |
4d0c8ee8 | 290 | struct rtllib_hdr_1addr *hdr = (struct rtllib_hdr_1addr *)skb->data; |
94a79942 | 291 | |
f38d223b | 292 | if (rtllib_act_scanning(ieee, false)) |
94a79942 | 293 | return; |
ecdfa446 | 294 | |
f38d223b | 295 | if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT) |
ecdfa446 GKH |
296 | return; |
297 | if (!IsQoSDataFrame(skb->data)) | |
298 | return; | |
14fc4235 | 299 | if (is_multicast_ether_addr(hdr->addr1)) |
ecdfa446 | 300 | return; |
65a43784 | 301 | |
f38d223b | 302 | if (tcb_desc->bdhcp || ieee->CntAfterLink < 2) |
94a79942 | 303 | return; |
65a43784 | 304 | |
94a79942 LF |
305 | if (pHTInfo->IOTAction & HT_IOT_ACT_TX_NO_AGGREGATION) |
306 | return; | |
65a43784 | 307 | |
94a79942 | 308 | if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) |
ecdfa446 | 309 | return; |
f38d223b LF |
310 | if (pHTInfo->bCurrentAMPDUEnable) { |
311 | if (!GetTs(ieee, (struct ts_common_info **)(&pTxTs), hdr->addr1, | |
312 | skb->priority, TX_DIR, true)) { | |
d69d2054 | 313 | netdev_info(ieee->dev, "%s: can't get TS\n", __func__); |
ecdfa446 GKH |
314 | return; |
315 | } | |
f38d223b LF |
316 | if (pTxTs->TxAdmittedBARecord.bValid == false) { |
317 | if (ieee->wpa_ie_len && (ieee->pairwise_key_type == | |
318 | KEY_TYPE_NA)) { | |
94a79942 | 319 | ; |
f38d223b | 320 | } else if (tcb_desc->bdhcp == 1) { |
94a79942 | 321 | ; |
f38d223b | 322 | } else if (!pTxTs->bDisable_AddBa) { |
94a79942 LF |
323 | TsStartAddBaProcess(ieee, pTxTs); |
324 | } | |
ecdfa446 | 325 | goto FORCED_AGG_SETTING; |
94a79942 | 326 | } else if (pTxTs->bUsingBa == false) { |
f38d223b LF |
327 | if (SN_LESS(pTxTs->TxAdmittedBARecord.BaStartSeqCtrl.field.SeqNum, |
328 | (pTxTs->TxCurSeq+1)%4096)) | |
ecdfa446 GKH |
329 | pTxTs->bUsingBa = true; |
330 | else | |
331 | goto FORCED_AGG_SETTING; | |
332 | } | |
94a79942 | 333 | if (ieee->iw_mode == IW_MODE_INFRA) { |
ecdfa446 GKH |
334 | tcb_desc->bAMPDUEnable = true; |
335 | tcb_desc->ampdu_factor = pHTInfo->CurrentAMPDUFactor; | |
336 | tcb_desc->ampdu_density = pHTInfo->CurrentMPDUDensity; | |
337 | } | |
338 | } | |
339 | FORCED_AGG_SETTING: | |
94a79942 | 340 | switch (pHTInfo->ForcedAMPDUMode) { |
f38d223b LF |
341 | case HT_AGG_AUTO: |
342 | break; | |
343 | ||
344 | case HT_AGG_FORCE_ENABLE: | |
345 | tcb_desc->bAMPDUEnable = true; | |
346 | tcb_desc->ampdu_density = pHTInfo->ForcedMPDUDensity; | |
347 | tcb_desc->ampdu_factor = pHTInfo->ForcedAMPDUFactor; | |
348 | break; | |
349 | ||
350 | case HT_AGG_FORCE_DISABLE: | |
351 | tcb_desc->bAMPDUEnable = false; | |
352 | tcb_desc->ampdu_density = 0; | |
353 | tcb_desc->ampdu_factor = 0; | |
354 | break; | |
ecdfa446 | 355 | } |
ecdfa446 GKH |
356 | } |
357 | ||
ec0dc6be | 358 | static void rtllib_qurey_ShortPreambleMode(struct rtllib_device *ieee, |
f38d223b | 359 | struct cb_desc *tcb_desc) |
ecdfa446 GKH |
360 | { |
361 | tcb_desc->bUseShortPreamble = false; | |
362 | if (tcb_desc->data_rate == 2) | |
ecdfa446 | 363 | return; |
f38d223b LF |
364 | else if (ieee->current_network.capability & |
365 | WLAN_CAPABILITY_SHORT_PREAMBLE) | |
ecdfa446 | 366 | tcb_desc->bUseShortPreamble = true; |
ecdfa446 | 367 | } |
94a79942 | 368 | |
ec0dc6be | 369 | static void rtllib_query_HTCapShortGI(struct rtllib_device *ieee, |
f38d223b | 370 | struct cb_desc *tcb_desc) |
ecdfa446 | 371 | { |
7796d93e | 372 | struct rt_hi_throughput *pHTInfo = ieee->pHTInfo; |
ecdfa446 | 373 | |
94a79942 | 374 | tcb_desc->bUseShortGI = false; |
ecdfa446 | 375 | |
f38d223b | 376 | if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT) |
ecdfa446 GKH |
377 | return; |
378 | ||
f38d223b | 379 | if (pHTInfo->bForcedShortGI) { |
ecdfa446 GKH |
380 | tcb_desc->bUseShortGI = true; |
381 | return; | |
382 | } | |
383 | ||
f38d223b | 384 | if ((pHTInfo->bCurBW40MHz == true) && pHTInfo->bCurShortGI40MHz) |
ecdfa446 | 385 | tcb_desc->bUseShortGI = true; |
f38d223b | 386 | else if ((pHTInfo->bCurBW40MHz == false) && pHTInfo->bCurShortGI20MHz) |
ecdfa446 GKH |
387 | tcb_desc->bUseShortGI = true; |
388 | } | |
389 | ||
ec0dc6be LF |
390 | static void rtllib_query_BandwidthMode(struct rtllib_device *ieee, |
391 | struct cb_desc *tcb_desc) | |
ecdfa446 | 392 | { |
7796d93e | 393 | struct rt_hi_throughput *pHTInfo = ieee->pHTInfo; |
ecdfa446 GKH |
394 | |
395 | tcb_desc->bPacketBW = false; | |
396 | ||
f38d223b | 397 | if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT) |
ecdfa446 GKH |
398 | return; |
399 | ||
94a79942 | 400 | if (tcb_desc->bMulticast || tcb_desc->bBroadcast) |
ecdfa446 GKH |
401 | return; |
402 | ||
f38d223b | 403 | if ((tcb_desc->data_rate & 0x80) == 0) |
ecdfa446 | 404 | return; |
f38d223b LF |
405 | if (pHTInfo->bCurBW40MHz && pHTInfo->bCurTxBW40MHz && |
406 | !ieee->bandwidth_auto_switch.bforced_tx20Mhz) | |
ecdfa446 | 407 | tcb_desc->bPacketBW = true; |
ecdfa446 | 408 | } |
94a79942 | 409 | |
ec0dc6be LF |
410 | static void rtllib_query_protectionmode(struct rtllib_device *ieee, |
411 | struct cb_desc *tcb_desc, | |
412 | struct sk_buff *skb) | |
ecdfa446 | 413 | { |
285b7c00 MK |
414 | struct rt_hi_throughput *pHTInfo; |
415 | ||
ecdfa446 | 416 | tcb_desc->bRTSSTBC = false; |
94a79942 LF |
417 | tcb_desc->bRTSUseShortGI = false; |
418 | tcb_desc->bCTSEnable = false; | |
419 | tcb_desc->RTSSC = 0; | |
420 | tcb_desc->bRTSBW = false; | |
ecdfa446 | 421 | |
94a79942 | 422 | if (tcb_desc->bBroadcast || tcb_desc->bMulticast) |
ecdfa446 GKH |
423 | return; |
424 | ||
94a79942 | 425 | if (is_broadcast_ether_addr(skb->data+16)) |
ecdfa446 GKH |
426 | return; |
427 | ||
f38d223b LF |
428 | if (ieee->mode < IEEE_N_24G) { |
429 | if (skb->len > ieee->rts) { | |
ecdfa446 GKH |
430 | tcb_desc->bRTSEnable = true; |
431 | tcb_desc->rts_rate = MGN_24M; | |
f38d223b | 432 | } else if (ieee->current_network.buseprotection) { |
ecdfa446 GKH |
433 | tcb_desc->bRTSEnable = true; |
434 | tcb_desc->bCTSEnable = true; | |
435 | tcb_desc->rts_rate = MGN_24M; | |
436 | } | |
ecdfa446 | 437 | return; |
285b7c00 | 438 | } |
3a6b70c3 | 439 | |
285b7c00 MK |
440 | pHTInfo = ieee->pHTInfo; |
441 | ||
442 | while (true) { | |
443 | if (pHTInfo->IOTAction & HT_IOT_ACT_FORCED_CTS2SELF) { | |
444 | tcb_desc->bCTSEnable = true; | |
445 | tcb_desc->rts_rate = MGN_24M; | |
446 | tcb_desc->bRTSEnable = true; | |
447 | break; | |
448 | } else if (pHTInfo->IOTAction & (HT_IOT_ACT_FORCED_RTS | | |
449 | HT_IOT_ACT_PURE_N_MODE)) { | |
450 | tcb_desc->bRTSEnable = true; | |
451 | tcb_desc->rts_rate = MGN_24M; | |
452 | break; | |
453 | } | |
454 | if (ieee->current_network.buseprotection) { | |
455 | tcb_desc->bRTSEnable = true; | |
456 | tcb_desc->bCTSEnable = true; | |
457 | tcb_desc->rts_rate = MGN_24M; | |
458 | break; | |
459 | } | |
460 | if (pHTInfo->bCurrentHTSupport && pHTInfo->bEnableHT) { | |
461 | u8 HTOpMode = pHTInfo->CurrentOpMode; | |
462 | ||
463 | if ((pHTInfo->bCurBW40MHz && (HTOpMode == 2 || | |
464 | HTOpMode == 3)) || | |
465 | (!pHTInfo->bCurBW40MHz && HTOpMode == 3)) { | |
94a79942 | 466 | tcb_desc->rts_rate = MGN_24M; |
ecdfa446 GKH |
467 | tcb_desc->bRTSEnable = true; |
468 | break; | |
469 | } | |
ecdfa446 | 470 | } |
285b7c00 MK |
471 | if (skb->len > ieee->rts) { |
472 | tcb_desc->rts_rate = MGN_24M; | |
473 | tcb_desc->bRTSEnable = true; | |
474 | break; | |
475 | } | |
476 | if (tcb_desc->bAMPDUEnable) { | |
477 | tcb_desc->rts_rate = MGN_24M; | |
478 | tcb_desc->bRTSEnable = false; | |
479 | break; | |
480 | } | |
481 | goto NO_PROTECTION; | |
ecdfa446 GKH |
482 | } |
483 | if (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
484 | tcb_desc->bUseShortPreamble = true; | |
94a79942 | 485 | if (ieee->iw_mode == IW_MODE_MASTER) |
fc00af0c | 486 | goto NO_PROTECTION; |
ecdfa446 GKH |
487 | return; |
488 | NO_PROTECTION: | |
489 | tcb_desc->bRTSEnable = false; | |
490 | tcb_desc->bCTSEnable = false; | |
f38d223b | 491 | tcb_desc->rts_rate = 0; |
ecdfa446 | 492 | tcb_desc->RTSSC = 0; |
f38d223b | 493 | tcb_desc->bRTSBW = false; |
ecdfa446 GKH |
494 | } |
495 | ||
496 | ||
ec0dc6be LF |
497 | static void rtllib_txrate_selectmode(struct rtllib_device *ieee, |
498 | struct cb_desc *tcb_desc) | |
ecdfa446 | 499 | { |
94a79942 | 500 | if (ieee->bTxDisableRateFallBack) |
ecdfa446 GKH |
501 | tcb_desc->bTxDisableRateFallBack = true; |
502 | ||
94a79942 | 503 | if (ieee->bTxUseDriverAssingedRate) |
ecdfa446 | 504 | tcb_desc->bTxUseDriverAssingedRate = true; |
f38d223b LF |
505 | if (!tcb_desc->bTxDisableRateFallBack || |
506 | !tcb_desc->bTxUseDriverAssingedRate) { | |
507 | if (ieee->iw_mode == IW_MODE_INFRA || | |
508 | ieee->iw_mode == IW_MODE_ADHOC) | |
ecdfa446 GKH |
509 | tcb_desc->RATRIndex = 0; |
510 | } | |
511 | } | |
512 | ||
511998ea MK |
513 | static u16 rtllib_query_seqnum(struct rtllib_device *ieee, struct sk_buff *skb, |
514 | u8 *dst) | |
ecdfa446 | 515 | { |
94a79942 LF |
516 | u16 seqnum = 0; |
517 | ||
14fc4235 | 518 | if (is_multicast_ether_addr(dst)) |
94a79942 | 519 | return 0; |
f38d223b | 520 | if (IsQoSDataFrame(skb->data)) { |
60554f2b | 521 | struct tx_ts_record *pTS = NULL; |
3a6b70c3 | 522 | |
f38d223b LF |
523 | if (!GetTs(ieee, (struct ts_common_info **)(&pTS), dst, |
524 | skb->priority, TX_DIR, true)) | |
94a79942 | 525 | return 0; |
94a79942 | 526 | seqnum = pTS->TxCurSeq; |
ecdfa446 | 527 | pTS->TxCurSeq = (pTS->TxCurSeq+1)%4096; |
94a79942 LF |
528 | return seqnum; |
529 | } | |
530 | return 0; | |
531 | } | |
532 | ||
533 | static int wme_downgrade_ac(struct sk_buff *skb) | |
534 | { | |
535 | switch (skb->priority) { | |
f38d223b LF |
536 | case 6: |
537 | case 7: | |
538 | skb->priority = 5; /* VO -> VI */ | |
539 | return 0; | |
540 | case 4: | |
541 | case 5: | |
542 | skb->priority = 3; /* VI -> BE */ | |
543 | return 0; | |
544 | case 0: | |
545 | case 3: | |
546 | skb->priority = 1; /* BE -> BK */ | |
547 | return 0; | |
548 | default: | |
549 | return -1; | |
ecdfa446 GKH |
550 | } |
551 | } | |
552 | ||
a8f4f33a MK |
553 | static u8 rtllib_current_rate(struct rtllib_device *ieee) |
554 | { | |
555 | if (ieee->mode & IEEE_MODE_MASK) | |
556 | return ieee->rate; | |
557 | ||
558 | if (ieee->HTCurrentOperaRate) | |
559 | return ieee->HTCurrentOperaRate; | |
560 | else | |
561 | return ieee->rate & 0x7F; | |
562 | } | |
563 | ||
511998ea | 564 | static int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev) |
ecdfa446 | 565 | { |
f38d223b LF |
566 | struct rtllib_device *ieee = (struct rtllib_device *) |
567 | netdev_priv_rsl(dev); | |
94a79942 LF |
568 | struct rtllib_txb *txb = NULL; |
569 | struct rtllib_hdr_3addrqos *frag_hdr; | |
ecdfa446 GKH |
570 | int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size; |
571 | unsigned long flags; | |
572 | struct net_device_stats *stats = &ieee->stats; | |
573 | int ether_type = 0, encrypt; | |
574 | int bytes, fc, qos_ctl = 0, hdr_len; | |
575 | struct sk_buff *skb_frag; | |
94a79942 | 576 | struct rtllib_hdr_3addrqos header = { /* Ensure zero initialized */ |
ecdfa446 GKH |
577 | .duration_id = 0, |
578 | .seq_ctl = 0, | |
579 | .qos_ctl = 0 | |
580 | }; | |
ecdfa446 | 581 | int qos_actived = ieee->current_network.qos_data.active; |
06c11107 MK |
582 | u8 dest[ETH_ALEN]; |
583 | u8 src[ETH_ALEN]; | |
32c44cb5 | 584 | struct lib80211_crypt_data *crypt = NULL; |
3b83db43 | 585 | struct cb_desc *tcb_desc; |
94a79942 LF |
586 | u8 bIsMulticast = false; |
587 | u8 IsAmsdu = false; | |
f38d223b | 588 | bool bdhcp = false; |
ecdfa446 GKH |
589 | |
590 | spin_lock_irqsave(&ieee->lock, flags); | |
591 | ||
cd017123 | 592 | /* If there is no driver handler to take the TXB, don't bother |
14b40d92 MK |
593 | * creating it... |
594 | */ | |
f38d223b LF |
595 | if ((!ieee->hard_start_xmit && !(ieee->softmac_features & |
596 | IEEE_SOFTMAC_TX_QUEUE)) || | |
597 | ((!ieee->softmac_data_hard_start_xmit && | |
598 | (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) { | |
d69d2054 | 599 | netdev_warn(ieee->dev, "No xmit handler.\n"); |
ecdfa446 GKH |
600 | goto success; |
601 | } | |
602 | ||
603 | ||
f38d223b | 604 | if (likely(ieee->raw_tx == 0)) { |
ecdfa446 | 605 | if (unlikely(skb->len < SNAP_SIZE + sizeof(u16))) { |
d69d2054 MK |
606 | netdev_warn(ieee->dev, "skb too small (%d).\n", |
607 | skb->len); | |
ecdfa446 GKH |
608 | goto success; |
609 | } | |
94a79942 | 610 | /* Save source and destination addresses */ |
b57ceb19 MK |
611 | ether_addr_copy(dest, skb->data); |
612 | ether_addr_copy(src, skb->data + ETH_ALEN); | |
ecdfa446 GKH |
613 | |
614 | memset(skb->cb, 0, sizeof(skb->cb)); | |
615 | ether_type = ntohs(((struct ethhdr *)skb->data)->h_proto); | |
616 | ||
f38d223b | 617 | if (ieee->iw_mode == IW_MODE_MONITOR) { |
94a79942 LF |
618 | txb = rtllib_alloc_txb(1, skb->len, GFP_ATOMIC); |
619 | if (unlikely(!txb)) { | |
d69d2054 MK |
620 | netdev_warn(ieee->dev, |
621 | "Could not allocate TXB\n"); | |
94a79942 LF |
622 | goto failed; |
623 | } | |
ecdfa446 | 624 | |
94a79942 | 625 | txb->encrypted = 0; |
198e0d17 | 626 | txb->payload_size = cpu_to_le16(skb->len); |
59ae1d12 | 627 | skb_put_data(txb->fragments[0], skb->data, skb->len); |
ecdfa446 | 628 | |
ecdfa446 GKH |
629 | goto success; |
630 | } | |
ecdfa446 | 631 | |
55dc4eb3 | 632 | if (skb->len > 282) { |
4c29207a | 633 | if (ether_type == ETH_P_IP) { |
f38d223b LF |
634 | const struct iphdr *ip = (struct iphdr *) |
635 | ((u8 *)skb->data+14); | |
4c29207a | 636 | if (ip->protocol == IPPROTO_UDP) { |
f38d223b LF |
637 | struct udphdr *udp; |
638 | ||
639 | udp = (struct udphdr *)((u8 *)ip + | |
640 | (ip->ihl << 2)); | |
641 | if (((((u8 *)udp)[1] == 68) && | |
642 | (((u8 *)udp)[3] == 67)) || | |
643 | ((((u8 *)udp)[1] == 67) && | |
644 | (((u8 *)udp)[3] == 68))) { | |
65a43784 | 645 | bdhcp = true; |
94a79942 | 646 | ieee->LPSDelayCnt = 200; |
65a43784 | 647 | } |
648 | } | |
4c29207a | 649 | } else if (ether_type == ETH_P_ARP) { |
d69d2054 MK |
650 | netdev_info(ieee->dev, |
651 | "=================>DHCP Protocol start tx ARP pkt!!\n"); | |
94a79942 | 652 | bdhcp = true; |
f38d223b LF |
653 | ieee->LPSDelayCnt = |
654 | ieee->current_network.tim.tim_count; | |
65a43784 | 655 | } |
94a79942 | 656 | } |
65a43784 | 657 | |
94a79942 | 658 | skb->priority = rtllib_classify(skb, IsAmsdu); |
0ddcf5fd | 659 | crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx]; |
94a79942 LF |
660 | encrypt = !(ether_type == ETH_P_PAE && ieee->ieee802_1x) && |
661 | ieee->host_encrypt && crypt && crypt->ops; | |
662 | if (!encrypt && ieee->ieee802_1x && | |
f38d223b | 663 | ieee->drop_unencrypted && ether_type != ETH_P_PAE) { |
94a79942 LF |
664 | stats->tx_dropped++; |
665 | goto success; | |
666 | } | |
94a79942 LF |
667 | if (crypt && !encrypt && ether_type == ETH_P_PAE) { |
668 | struct eapol *eap = (struct eapol *)(skb->data + | |
f38d223b LF |
669 | sizeof(struct ethhdr) - SNAP_SIZE - |
670 | sizeof(u16)); | |
e77c752f MK |
671 | netdev_dbg(ieee->dev, |
672 | "TX: IEEE 802.11 EAPOL frame: %s\n", | |
673 | eap_get_type(eap->type)); | |
94a79942 | 674 | } |
ecdfa446 | 675 | |
94a79942 LF |
676 | /* Advance the SKB to the start of the payload */ |
677 | skb_pull(skb, sizeof(struct ethhdr)); | |
ecdfa446 | 678 | |
f38d223b | 679 | /* Determine total amount of storage required for TXB packets */ |
94a79942 | 680 | bytes = skb->len + SNAP_SIZE + sizeof(u16); |
ecdfa446 GKH |
681 | |
682 | if (encrypt) | |
94a79942 | 683 | fc = RTLLIB_FTYPE_DATA | RTLLIB_FCTL_WEP; |
ecdfa446 | 684 | else |
94a79942 | 685 | fc = RTLLIB_FTYPE_DATA; |
ecdfa446 | 686 | |
94a79942 LF |
687 | if (qos_actived) |
688 | fc |= RTLLIB_STYPE_QOS_DATA; | |
ecdfa446 | 689 | else |
94a79942 | 690 | fc |= RTLLIB_STYPE_DATA; |
ecdfa446 GKH |
691 | |
692 | if (ieee->iw_mode == IW_MODE_INFRA) { | |
94a79942 | 693 | fc |= RTLLIB_FCTL_TODS; |
ecdfa446 | 694 | /* To DS: Addr1 = BSSID, Addr2 = SA, |
14b40d92 MK |
695 | * Addr3 = DA |
696 | */ | |
b57ceb19 MK |
697 | ether_addr_copy(header.addr1, |
698 | ieee->current_network.bssid); | |
699 | ether_addr_copy(header.addr2, src); | |
94a79942 | 700 | if (IsAmsdu) |
b57ceb19 MK |
701 | ether_addr_copy(header.addr3, |
702 | ieee->current_network.bssid); | |
94a79942 | 703 | else |
b57ceb19 | 704 | ether_addr_copy(header.addr3, dest); |
ecdfa446 GKH |
705 | } else if (ieee->iw_mode == IW_MODE_ADHOC) { |
706 | /* not From/To DS: Addr1 = DA, Addr2 = SA, | |
14b40d92 MK |
707 | * Addr3 = BSSID |
708 | */ | |
b57ceb19 MK |
709 | ether_addr_copy(header.addr1, dest); |
710 | ether_addr_copy(header.addr2, src); | |
711 | ether_addr_copy(header.addr3, | |
712 | ieee->current_network.bssid); | |
ecdfa446 GKH |
713 | } |
714 | ||
14fc4235 | 715 | bIsMulticast = is_multicast_ether_addr(header.addr1); |
94a79942 | 716 | |
f38d223b | 717 | header.frame_ctl = cpu_to_le16(fc); |
ecdfa446 GKH |
718 | |
719 | /* Determine fragmentation size based on destination (multicast | |
14b40d92 MK |
720 | * and broadcast are not fragmented) |
721 | */ | |
94a79942 | 722 | if (bIsMulticast) { |
ecdfa446 GKH |
723 | frag_size = MAX_FRAG_THRESHOLD; |
724 | qos_ctl |= QOS_CTL_NOTCONTAIN_ACK; | |
94a79942 LF |
725 | } else { |
726 | frag_size = ieee->fts; | |
ecdfa446 GKH |
727 | qos_ctl = 0; |
728 | } | |
729 | ||
94a79942 LF |
730 | if (qos_actived) { |
731 | hdr_len = RTLLIB_3ADDR_LEN + 2; | |
732 | ||
ff2f3e0e DA |
733 | /* in case we are a client verify acm is not set for this ac */ |
734 | while (unlikely(ieee->wmm_acm & (0x01 << skb->priority))) { | |
735 | netdev_info(ieee->dev, "skb->priority = %x\n", | |
736 | skb->priority); | |
737 | if (wme_downgrade_ac(skb)) | |
738 | break; | |
739 | netdev_info(ieee->dev, "converted skb->priority = %x\n", | |
740 | skb->priority); | |
741 | } | |
742 | ||
f38d223b LF |
743 | qos_ctl |= skb->priority; |
744 | header.qos_ctl = cpu_to_le16(qos_ctl & RTLLIB_QOS_TID); | |
ff2f3e0e | 745 | |
ecdfa446 | 746 | } else { |
94a79942 | 747 | hdr_len = RTLLIB_3ADDR_LEN; |
ecdfa446 GKH |
748 | } |
749 | /* Determine amount of payload per fragment. Regardless of if | |
f38d223b LF |
750 | * this stack is providing the full 802.11 header, one will |
751 | * eventually be affixed to this fragment -- so we must account | |
14b40d92 MK |
752 | * for it when determining the amount of payload space. |
753 | */ | |
ecdfa446 GKH |
754 | bytes_per_frag = frag_size - hdr_len; |
755 | if (ieee->config & | |
f38d223b | 756 | (CFG_RTLLIB_COMPUTE_FCS | CFG_RTLLIB_RESERVE_FCS)) |
94a79942 | 757 | bytes_per_frag -= RTLLIB_FCS_LEN; |
ecdfa446 | 758 | |
cd017123 | 759 | /* Each fragment may need to have room for encrypting |
14b40d92 MK |
760 | * pre/postfix |
761 | */ | |
94a79942 | 762 | if (encrypt) { |
32c44cb5 SM |
763 | bytes_per_frag -= crypt->ops->extra_mpdu_prefix_len + |
764 | crypt->ops->extra_mpdu_postfix_len + | |
765 | crypt->ops->extra_msdu_prefix_len + | |
766 | crypt->ops->extra_msdu_postfix_len; | |
94a79942 | 767 | } |
ecdfa446 | 768 | /* Number of fragments is the total bytes_per_frag / |
14b40d92 MK |
769 | * payload_per_fragment |
770 | */ | |
ecdfa446 GKH |
771 | nr_frags = bytes / bytes_per_frag; |
772 | bytes_last_frag = bytes % bytes_per_frag; | |
773 | if (bytes_last_frag) | |
774 | nr_frags++; | |
775 | else | |
776 | bytes_last_frag = bytes_per_frag; | |
777 | ||
f38d223b LF |
778 | /* When we allocate the TXB we allocate enough space for the |
779 | * reserve and full fragment bytes (bytes_per_frag doesn't | |
14b40d92 MK |
780 | * include prefix, postfix, header, FCS, etc.) |
781 | */ | |
f38d223b LF |
782 | txb = rtllib_alloc_txb(nr_frags, frag_size + |
783 | ieee->tx_headroom, GFP_ATOMIC); | |
ecdfa446 | 784 | if (unlikely(!txb)) { |
d69d2054 | 785 | netdev_warn(ieee->dev, "Could not allocate TXB\n"); |
ecdfa446 GKH |
786 | goto failed; |
787 | } | |
788 | txb->encrypted = encrypt; | |
198e0d17 | 789 | txb->payload_size = cpu_to_le16(bytes); |
ecdfa446 | 790 | |
94a79942 | 791 | if (qos_actived) |
ecdfa446 | 792 | txb->queue_index = UP2AC(skb->priority); |
f38d223b LF |
793 | else |
794 | txb->queue_index = WME_AC_BE; | |
ecdfa446 | 795 | |
ecdfa446 GKH |
796 | for (i = 0; i < nr_frags; i++) { |
797 | skb_frag = txb->fragments[i]; | |
f38d223b LF |
798 | tcb_desc = (struct cb_desc *)(skb_frag->cb + |
799 | MAX_DEV_ADDR_SIZE); | |
800 | if (qos_actived) { | |
94a79942 | 801 | skb_frag->priority = skb->priority; |
ecdfa446 GKH |
802 | tcb_desc->queue_index = UP2AC(skb->priority); |
803 | } else { | |
94a79942 LF |
804 | skb_frag->priority = WME_AC_BE; |
805 | tcb_desc->queue_index = WME_AC_BE; | |
ecdfa446 GKH |
806 | } |
807 | skb_reserve(skb_frag, ieee->tx_headroom); | |
808 | ||
f38d223b | 809 | if (encrypt) { |
ecdfa446 GKH |
810 | if (ieee->hwsec_active) |
811 | tcb_desc->bHwSec = 1; | |
812 | else | |
813 | tcb_desc->bHwSec = 0; | |
f38d223b | 814 | skb_reserve(skb_frag, |
32c44cb5 SM |
815 | crypt->ops->extra_mpdu_prefix_len + |
816 | crypt->ops->extra_msdu_prefix_len); | |
94a79942 | 817 | } else { |
ecdfa446 GKH |
818 | tcb_desc->bHwSec = 0; |
819 | } | |
59ae1d12 | 820 | frag_hdr = skb_put_data(skb_frag, &header, hdr_len); |
ecdfa446 | 821 | |
f38d223b | 822 | /* If this is not the last fragment, then add the |
14b40d92 MK |
823 | * MOREFRAGS bit to the frame control |
824 | */ | |
ecdfa446 GKH |
825 | if (i != nr_frags - 1) { |
826 | frag_hdr->frame_ctl = cpu_to_le16( | |
94a79942 | 827 | fc | RTLLIB_FCTL_MOREFRAGS); |
ecdfa446 GKH |
828 | bytes = bytes_per_frag; |
829 | ||
830 | } else { | |
f38d223b | 831 | /* The last fragment has the remaining length */ |
ecdfa446 GKH |
832 | bytes = bytes_last_frag; |
833 | } | |
f38d223b LF |
834 | if ((qos_actived) && (!bIsMulticast)) { |
835 | frag_hdr->seq_ctl = | |
198e0d17 RK |
836 | cpu_to_le16(rtllib_query_seqnum(ieee, skb_frag, |
837 | header.addr1)); | |
f38d223b | 838 | frag_hdr->seq_ctl = |
86005e16 | 839 | cpu_to_le16(le16_to_cpu(frag_hdr->seq_ctl)<<4 | i); |
ecdfa446 | 840 | } else { |
f38d223b LF |
841 | frag_hdr->seq_ctl = |
842 | cpu_to_le16(ieee->seq_ctrl[0]<<4 | i); | |
ecdfa446 | 843 | } |
ecdfa446 GKH |
844 | /* Put a SNAP header on the first fragment */ |
845 | if (i == 0) { | |
94a79942 | 846 | rtllib_put_snap( |
f38d223b LF |
847 | skb_put(skb_frag, SNAP_SIZE + |
848 | sizeof(u16)), ether_type); | |
ecdfa446 GKH |
849 | bytes -= SNAP_SIZE + sizeof(u16); |
850 | } | |
851 | ||
59ae1d12 | 852 | skb_put_data(skb_frag, skb->data, bytes); |
ecdfa446 GKH |
853 | |
854 | /* Advance the SKB... */ | |
855 | skb_pull(skb, bytes); | |
856 | ||
f38d223b LF |
857 | /* Encryption routine will move the header forward in |
858 | * order to insert the IV between the header and the | |
14b40d92 MK |
859 | * payload |
860 | */ | |
ecdfa446 | 861 | if (encrypt) |
f38d223b LF |
862 | rtllib_encrypt_fragment(ieee, skb_frag, |
863 | hdr_len); | |
ecdfa446 | 864 | if (ieee->config & |
f38d223b | 865 | (CFG_RTLLIB_COMPUTE_FCS | CFG_RTLLIB_RESERVE_FCS)) |
ecdfa446 GKH |
866 | skb_put(skb_frag, 4); |
867 | } | |
868 | ||
94a79942 | 869 | if ((qos_actived) && (!bIsMulticast)) { |
f38d223b LF |
870 | if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF) |
871 | ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0; | |
872 | else | |
873 | ieee->seq_ctrl[UP2AC(skb->priority) + 1]++; | |
ecdfa446 | 874 | } else { |
f38d223b LF |
875 | if (ieee->seq_ctrl[0] == 0xFFF) |
876 | ieee->seq_ctrl[0] = 0; | |
877 | else | |
878 | ieee->seq_ctrl[0]++; | |
ecdfa446 | 879 | } |
f38d223b | 880 | } else { |
94a79942 | 881 | if (unlikely(skb->len < sizeof(struct rtllib_hdr_3addr))) { |
d69d2054 MK |
882 | netdev_warn(ieee->dev, "skb too small (%d).\n", |
883 | skb->len); | |
ecdfa446 GKH |
884 | goto success; |
885 | } | |
886 | ||
94a79942 | 887 | txb = rtllib_alloc_txb(1, skb->len, GFP_ATOMIC); |
f38d223b | 888 | if (!txb) { |
d69d2054 | 889 | netdev_warn(ieee->dev, "Could not allocate TXB\n"); |
ecdfa446 GKH |
890 | goto failed; |
891 | } | |
892 | ||
893 | txb->encrypted = 0; | |
198e0d17 | 894 | txb->payload_size = cpu_to_le16(skb->len); |
59ae1d12 | 895 | skb_put_data(txb->fragments[0], skb->data, skb->len); |
ecdfa446 GKH |
896 | } |
897 | ||
898 | success: | |
f38d223b LF |
899 | if (txb) { |
900 | struct cb_desc *tcb_desc = (struct cb_desc *) | |
901 | (txb->fragments[0]->cb + MAX_DEV_ADDR_SIZE); | |
ecdfa446 | 902 | tcb_desc->bTxEnableFwCalcDur = 1; |
94a79942 | 903 | tcb_desc->priority = skb->priority; |
65a43784 | 904 | |
94a79942 | 905 | if (ether_type == ETH_P_PAE) { |
f38d223b LF |
906 | if (ieee->pHTInfo->IOTAction & |
907 | HT_IOT_ACT_WA_IOT_Broadcom) { | |
908 | tcb_desc->data_rate = | |
909 | MgntQuery_TxRateExcludeCCKRates(ieee); | |
94a79942 | 910 | tcb_desc->bTxDisableRateFallBack = false; |
f38d223b | 911 | } else { |
94a79942 | 912 | tcb_desc->data_rate = ieee->basic_rate; |
65a43784 | 913 | tcb_desc->bTxDisableRateFallBack = 1; |
94a79942 LF |
914 | } |
915 | ||
65a43784 | 916 | |
917 | tcb_desc->RATRIndex = 7; | |
918 | tcb_desc->bTxUseDriverAssingedRate = 1; | |
94a79942 LF |
919 | } else { |
920 | if (is_multicast_ether_addr(header.addr1)) | |
921 | tcb_desc->bMulticast = 1; | |
922 | if (is_broadcast_ether_addr(header.addr1)) | |
923 | tcb_desc->bBroadcast = 1; | |
94a79942 | 924 | rtllib_txrate_selectmode(ieee, tcb_desc); |
f38d223b | 925 | if (tcb_desc->bMulticast || tcb_desc->bBroadcast) |
94a79942 LF |
926 | tcb_desc->data_rate = ieee->basic_rate; |
927 | else | |
a8f4f33a | 928 | tcb_desc->data_rate = rtllib_current_rate(ieee); |
f38d223b | 929 | |
4bb01423 | 930 | if (bdhcp) { |
f38d223b LF |
931 | if (ieee->pHTInfo->IOTAction & |
932 | HT_IOT_ACT_WA_IOT_Broadcom) { | |
933 | tcb_desc->data_rate = | |
934 | MgntQuery_TxRateExcludeCCKRates(ieee); | |
94a79942 | 935 | tcb_desc->bTxDisableRateFallBack = false; |
f38d223b | 936 | } else { |
94a79942 LF |
937 | tcb_desc->data_rate = MGN_1M; |
938 | tcb_desc->bTxDisableRateFallBack = 1; | |
939 | } | |
65a43784 | 940 | |
941 | ||
94a79942 LF |
942 | tcb_desc->RATRIndex = 7; |
943 | tcb_desc->bTxUseDriverAssingedRate = 1; | |
944 | tcb_desc->bdhcp = 1; | |
945 | } | |
946 | ||
947 | rtllib_qurey_ShortPreambleMode(ieee, tcb_desc); | |
f38d223b LF |
948 | rtllib_tx_query_agg_cap(ieee, txb->fragments[0], |
949 | tcb_desc); | |
94a79942 LF |
950 | rtllib_query_HTCapShortGI(ieee, tcb_desc); |
951 | rtllib_query_BandwidthMode(ieee, tcb_desc); | |
f38d223b LF |
952 | rtllib_query_protectionmode(ieee, tcb_desc, |
953 | txb->fragments[0]); | |
94a79942 | 954 | } |
ecdfa446 GKH |
955 | } |
956 | spin_unlock_irqrestore(&ieee->lock, flags); | |
957 | dev_kfree_skb_any(skb); | |
958 | if (txb) { | |
f38d223b | 959 | if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE) { |
94a79942 | 960 | dev->stats.tx_packets++; |
83efd529 | 961 | dev->stats.tx_bytes += le16_to_cpu(txb->payload_size); |
94a79942 | 962 | rtllib_softmac_xmit(txb, ieee); |
f38d223b | 963 | } else { |
94a79942 | 964 | if ((*ieee->hard_start_xmit)(txb, dev) == 0) { |
ecdfa446 | 965 | stats->tx_packets++; |
83efd529 | 966 | stats->tx_bytes += le16_to_cpu(txb->payload_size); |
ecdfa446 GKH |
967 | return 0; |
968 | } | |
94a79942 | 969 | rtllib_txb_free(txb); |
ecdfa446 GKH |
970 | } |
971 | } | |
972 | ||
973 | return 0; | |
974 | ||
975 | failed: | |
976 | spin_unlock_irqrestore(&ieee->lock, flags); | |
977 | netif_stop_queue(dev); | |
978 | stats->tx_errors++; | |
979 | return 1; | |
980 | ||
981 | } | |
08e1416f | 982 | |
94a79942 LF |
983 | int rtllib_xmit(struct sk_buff *skb, struct net_device *dev) |
984 | { | |
985 | memset(skb->cb, 0, sizeof(skb->cb)); | |
986 | return rtllib_xmit_inter(skb, dev); | |
987 | } | |
3b28499c | 988 | EXPORT_SYMBOL(rtllib_xmit); |