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ecdfa446 GKH |
1 | /****************************************************************************** |
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 | You should have received a copy of the GNU General Public License along with | |
15 | this program; if not, write to the Free Software Foundation, Inc., 59 | |
16 | Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | ||
18 | The full GNU General Public License is included in this distribution in the | |
19 | file called LICENSE. | |
20 | ||
21 | Contact Information: | |
22 | James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
23 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | ||
25 | ****************************************************************************** | |
26 | ||
27 | Few modifications for Realtek's Wi-Fi drivers by | |
28 | Andrea Merello <andreamrl@tiscali.it> | |
29 | ||
30 | A special thanks goes to Realtek for their support ! | |
31 | ||
32 | ******************************************************************************/ | |
33 | ||
34 | #include <linux/compiler.h> | |
ecdfa446 GKH |
35 | #include <linux/errno.h> |
36 | #include <linux/if_arp.h> | |
37 | #include <linux/in6.h> | |
38 | #include <linux/in.h> | |
39 | #include <linux/ip.h> | |
40 | #include <linux/kernel.h> | |
41 | #include <linux/module.h> | |
42 | #include <linux/netdevice.h> | |
43 | #include <linux/pci.h> | |
44 | #include <linux/proc_fs.h> | |
45 | #include <linux/skbuff.h> | |
46 | #include <linux/slab.h> | |
47 | #include <linux/tcp.h> | |
48 | #include <linux/types.h> | |
ecdfa446 GKH |
49 | #include <linux/wireless.h> |
50 | #include <linux/etherdevice.h> | |
f38d223b | 51 | #include <linux/uaccess.h> |
ecdfa446 GKH |
52 | #include <linux/if_vlan.h> |
53 | ||
94a79942 | 54 | #include "rtllib.h" |
ecdfa446 | 55 | |
ecdfa446 GKH |
56 | /* |
57 | ||
58 | ||
59 | 802.11 Data Frame | |
60 | ||
61 | ||
cd017123 | 62 | 802.11 frame_control for data frames - 2 bytes |
ecdfa446 GKH |
63 | ,-----------------------------------------------------------------------------------------. |
64 | bits | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | a | b | c | d | e | | |
65 | |----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|------| | |
66 | val | 0 | 0 | 0 | 1 | x | 0 | 0 | 0 | 1 | 0 | x | x | x | x | x | | |
67 | |----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|------| | |
68 | desc | ^-ver-^ | ^type-^ | ^-----subtype-----^ | to |from |more |retry| pwr |more |wep | | |
f38d223b | 69 | | | | x=0 data,x=1 data+ack | DS | DS |frag | | mgm |data | | |
ecdfa446 | 70 | '-----------------------------------------------------------------------------------------' |
f38d223b LF |
71 | /\ |
72 | | | |
73 | 802.11 Data Frame | | |
74 | ,--------- 'ctrl' expands to >-----------' | |
75 | | | |
ecdfa446 GKH |
76 | ,--'---,-------------------------------------------------------------. |
77 | Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | | |
78 | |------|------|---------|---------|---------|------|---------|------| | |
79 | Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | Frame | fcs | | |
f38d223b LF |
80 | | | tion | (BSSID) | | | ence | data | | |
81 | `--------------------------------------------------| |------' | |
82 | Total: 28 non-data bytes `----.----' | |
83 | | | |
ecdfa446 GKH |
84 | .- 'Frame data' expands to <---------------------------' |
85 | | | |
86 | V | |
87 | ,---------------------------------------------------. | |
88 | Bytes | 1 | 1 | 1 | 3 | 2 | 0-2304 | | |
89 | |------|------|---------|----------|------|---------| | |
90 | Desc. | SNAP | SNAP | Control |Eth Tunnel| Type | IP | | |
f38d223b LF |
91 | | DSAP | SSAP | | | | Packet | |
92 | | 0xAA | 0xAA |0x03 (UI)|0x00-00-F8| | | | |
93 | `-----------------------------------------| | | |
94 | Total: 8 non-data bytes `----.----' | |
95 | | | |
ecdfa446 GKH |
96 | .- 'IP Packet' expands, if WEP enabled, to <--' |
97 | | | |
98 | V | |
99 | ,-----------------------. | |
100 | Bytes | 4 | 0-2296 | 4 | | |
101 | |-----|-----------|-----| | |
102 | Desc. | IV | Encrypted | ICV | | |
103 | | | IP Packet | | | |
104 | `-----------------------' | |
105 | Total: 8 non-data bytes | |
106 | ||
107 | ||
108 | 802.3 Ethernet Data Frame | |
109 | ||
110 | ,-----------------------------------------. | |
111 | Bytes | 6 | 6 | 2 | Variable | 4 | | |
112 | |-------|-------|------|-----------|------| | |
113 | Desc. | Dest. | Source| Type | IP Packet | fcs | | |
f38d223b | 114 | | MAC | MAC | | | | |
ecdfa446 GKH |
115 | `-----------------------------------------' |
116 | Total: 18 non-data bytes | |
117 | ||
118 | In the event that fragmentation is required, the incoming payload is split into | |
119 | N parts of size ieee->fts. The first fragment contains the SNAP header and the | |
120 | remaining packets are just data. | |
121 | ||
122 | If encryption is enabled, each fragment payload size is reduced by enough space | |
123 | to add the prefix and postfix (IV and ICV totalling 8 bytes in the case of WEP) | |
124 | So if you have 1500 bytes of payload with ieee->fts set to 500 without | |
125 | encryption it will take 3 frames. With WEP it will take 4 frames as the | |
126 | payload of each frame is reduced to 492 bytes. | |
127 | ||
128 | * SKB visualization | |
129 | * | |
130 | * ,- skb->data | |
131 | * | | |
f38d223b LF |
132 | * | ETHERNET HEADER ,-<-- PAYLOAD |
133 | * | | 14 bytes from skb->data | |
ecdfa446 | 134 | * | 2 bytes for Type --> ,T. | (sizeof ethhdr) |
f38d223b | 135 | * | | | | |
ecdfa446 GKH |
136 | * |,-Dest.--. ,--Src.---. | | | |
137 | * | 6 bytes| | 6 bytes | | | | | |
f38d223b LF |
138 | * v | | | | | | |
139 | * 0 | v 1 | v | v 2 | |
ecdfa446 | 140 | * 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 |
f38d223b LF |
141 | * ^ | ^ | ^ | |
142 | * | | | | | | | |
143 | * | | | | `T' <---- 2 bytes for Type | |
144 | * | | | | | |
ecdfa446 GKH |
145 | * | | '---SNAP--' <-------- 6 bytes for SNAP |
146 | * | | | |
147 | * `-IV--' <-------------------- 4 bytes for IV (WEP) | |
148 | * | |
149 | * SNAP HEADER | |
150 | * | |
151 | */ | |
152 | ||
153 | static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 }; | |
154 | static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 }; | |
155 | ||
94a79942 | 156 | inline int rtllib_put_snap(u8 *data, u16 h_proto) |
ecdfa446 | 157 | { |
94a79942 | 158 | struct rtllib_snap_hdr *snap; |
ecdfa446 GKH |
159 | u8 *oui; |
160 | ||
94a79942 | 161 | snap = (struct rtllib_snap_hdr *)data; |
ecdfa446 GKH |
162 | snap->dsap = 0xaa; |
163 | snap->ssap = 0xaa; | |
164 | snap->ctrl = 0x03; | |
165 | ||
166 | if (h_proto == 0x8137 || h_proto == 0x80f3) | |
167 | oui = P802_1H_OUI; | |
168 | else | |
169 | oui = RFC1042_OUI; | |
170 | snap->oui[0] = oui[0]; | |
171 | snap->oui[1] = oui[1]; | |
172 | snap->oui[2] = oui[2]; | |
173 | ||
174 | *(u16 *)(data + SNAP_SIZE) = htons(h_proto); | |
175 | ||
176 | return SNAP_SIZE + sizeof(u16); | |
177 | } | |
178 | ||
f38d223b LF |
179 | int rtllib_encrypt_fragment(struct rtllib_device *ieee, struct sk_buff *frag, |
180 | int hdr_len) | |
ecdfa446 | 181 | { |
32c44cb5 | 182 | struct lib80211_crypt_data *crypt = NULL; |
ecdfa446 GKH |
183 | int res; |
184 | ||
0ddcf5fd | 185 | crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx]; |
94a79942 | 186 | |
f38d223b LF |
187 | if (!(crypt && crypt->ops)) { |
188 | printk(KERN_INFO "=========>%s(), crypt is null\n", __func__); | |
ecdfa446 GKH |
189 | return -1; |
190 | } | |
ecdfa446 GKH |
191 | /* To encrypt, frame format is: |
192 | * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) */ | |
193 | ||
ecdfa446 GKH |
194 | /* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so |
195 | * call both MSDU and MPDU encryption functions from here. */ | |
196 | atomic_inc(&crypt->refcnt); | |
197 | res = 0; | |
198 | if (crypt->ops->encrypt_msdu) | |
199 | res = crypt->ops->encrypt_msdu(frag, hdr_len, crypt->priv); | |
200 | if (res == 0 && crypt->ops->encrypt_mpdu) | |
201 | res = crypt->ops->encrypt_mpdu(frag, hdr_len, crypt->priv); | |
202 | ||
203 | atomic_dec(&crypt->refcnt); | |
204 | if (res < 0) { | |
205 | printk(KERN_INFO "%s: Encryption failed: len=%d.\n", | |
206 | ieee->dev->name, frag->len); | |
207 | ieee->ieee_stats.tx_discards++; | |
208 | return -1; | |
209 | } | |
210 | ||
211 | return 0; | |
212 | } | |
213 | ||
214 | ||
f38d223b LF |
215 | void rtllib_txb_free(struct rtllib_txb *txb) |
216 | { | |
ecdfa446 GKH |
217 | if (unlikely(!txb)) |
218 | return; | |
ecdfa446 GKH |
219 | kfree(txb); |
220 | } | |
221 | ||
ec0dc6be LF |
222 | static struct rtllib_txb *rtllib_alloc_txb(int nr_frags, int txb_size, |
223 | gfp_t gfp_mask) | |
ecdfa446 | 224 | { |
94a79942 | 225 | struct rtllib_txb *txb; |
ecdfa446 | 226 | int i; |
f38d223b LF |
227 | txb = kmalloc(sizeof(struct rtllib_txb) + (sizeof(u8 *) * nr_frags), |
228 | gfp_mask); | |
ecdfa446 GKH |
229 | if (!txb) |
230 | return NULL; | |
231 | ||
94a79942 | 232 | memset(txb, 0, sizeof(struct rtllib_txb)); |
ecdfa446 GKH |
233 | txb->nr_frags = nr_frags; |
234 | txb->frag_size = txb_size; | |
235 | ||
236 | for (i = 0; i < nr_frags; i++) { | |
237 | txb->fragments[i] = dev_alloc_skb(txb_size); | |
238 | if (unlikely(!txb->fragments[i])) { | |
239 | i--; | |
240 | break; | |
241 | } | |
242 | memset(txb->fragments[i]->cb, 0, sizeof(txb->fragments[i]->cb)); | |
243 | } | |
244 | if (unlikely(i != nr_frags)) { | |
245 | while (i >= 0) | |
246 | dev_kfree_skb_any(txb->fragments[i--]); | |
247 | kfree(txb); | |
248 | return NULL; | |
249 | } | |
250 | return txb; | |
251 | } | |
252 | ||
ec0dc6be | 253 | static int rtllib_classify(struct sk_buff *skb, u8 bIsAmsdu) |
ecdfa446 GKH |
254 | { |
255 | struct ethhdr *eth; | |
256 | struct iphdr *ip; | |
94a79942 | 257 | |
ecdfa446 GKH |
258 | eth = (struct ethhdr *)skb->data; |
259 | if (eth->h_proto != htons(ETH_P_IP)) | |
260 | return 0; | |
261 | ||
94a79942 | 262 | RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA, skb->data, skb->len); |
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; |
f38d223b | 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; | |
f38d223b LF |
299 | if (is_multicast_ether_addr(hdr->addr1) || |
300 | is_broadcast_ether_addr(hdr->addr1)) | |
ecdfa446 | 301 | return; |
65a43784 | 302 | |
f38d223b | 303 | if (tcb_desc->bdhcp || ieee->CntAfterLink < 2) |
94a79942 | 304 | return; |
65a43784 | 305 | |
94a79942 LF |
306 | if (pHTInfo->IOTAction & HT_IOT_ACT_TX_NO_AGGREGATION) |
307 | return; | |
65a43784 | 308 | |
94a79942 | 309 | if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) |
ecdfa446 | 310 | return; |
f38d223b LF |
311 | if (pHTInfo->bCurrentAMPDUEnable) { |
312 | if (!GetTs(ieee, (struct ts_common_info **)(&pTxTs), hdr->addr1, | |
313 | skb->priority, TX_DIR, true)) { | |
314 | printk(KERN_INFO "%s: can't get TS\n", __func__); | |
ecdfa446 GKH |
315 | return; |
316 | } | |
f38d223b LF |
317 | if (pTxTs->TxAdmittedBARecord.bValid == false) { |
318 | if (ieee->wpa_ie_len && (ieee->pairwise_key_type == | |
319 | KEY_TYPE_NA)) { | |
94a79942 | 320 | ; |
f38d223b | 321 | } else if (tcb_desc->bdhcp == 1) { |
94a79942 | 322 | ; |
f38d223b | 323 | } else if (!pTxTs->bDisable_AddBa) { |
94a79942 LF |
324 | TsStartAddBaProcess(ieee, pTxTs); |
325 | } | |
ecdfa446 | 326 | goto FORCED_AGG_SETTING; |
94a79942 | 327 | } else if (pTxTs->bUsingBa == false) { |
f38d223b LF |
328 | if (SN_LESS(pTxTs->TxAdmittedBARecord.BaStartSeqCtrl.field.SeqNum, |
329 | (pTxTs->TxCurSeq+1)%4096)) | |
ecdfa446 GKH |
330 | pTxTs->bUsingBa = true; |
331 | else | |
332 | goto FORCED_AGG_SETTING; | |
333 | } | |
94a79942 | 334 | if (ieee->iw_mode == IW_MODE_INFRA) { |
ecdfa446 GKH |
335 | tcb_desc->bAMPDUEnable = true; |
336 | tcb_desc->ampdu_factor = pHTInfo->CurrentAMPDUFactor; | |
337 | tcb_desc->ampdu_density = pHTInfo->CurrentMPDUDensity; | |
338 | } | |
339 | } | |
340 | FORCED_AGG_SETTING: | |
94a79942 | 341 | switch (pHTInfo->ForcedAMPDUMode) { |
f38d223b LF |
342 | case HT_AGG_AUTO: |
343 | break; | |
344 | ||
345 | case HT_AGG_FORCE_ENABLE: | |
346 | tcb_desc->bAMPDUEnable = true; | |
347 | tcb_desc->ampdu_density = pHTInfo->ForcedMPDUDensity; | |
348 | tcb_desc->ampdu_factor = pHTInfo->ForcedAMPDUFactor; | |
349 | break; | |
350 | ||
351 | case HT_AGG_FORCE_DISABLE: | |
352 | tcb_desc->bAMPDUEnable = false; | |
353 | tcb_desc->ampdu_density = 0; | |
354 | tcb_desc->ampdu_factor = 0; | |
355 | break; | |
ecdfa446 | 356 | } |
f38d223b | 357 | return; |
ecdfa446 GKH |
358 | } |
359 | ||
ec0dc6be | 360 | static void rtllib_qurey_ShortPreambleMode(struct rtllib_device *ieee, |
f38d223b | 361 | struct cb_desc *tcb_desc) |
ecdfa446 GKH |
362 | { |
363 | tcb_desc->bUseShortPreamble = false; | |
364 | if (tcb_desc->data_rate == 2) | |
ecdfa446 | 365 | return; |
f38d223b LF |
366 | else if (ieee->current_network.capability & |
367 | WLAN_CAPABILITY_SHORT_PREAMBLE) | |
ecdfa446 | 368 | tcb_desc->bUseShortPreamble = true; |
ecdfa446 GKH |
369 | return; |
370 | } | |
94a79942 | 371 | |
ec0dc6be | 372 | static void rtllib_query_HTCapShortGI(struct rtllib_device *ieee, |
f38d223b | 373 | struct cb_desc *tcb_desc) |
ecdfa446 | 374 | { |
7796d93e | 375 | struct rt_hi_throughput *pHTInfo = ieee->pHTInfo; |
ecdfa446 | 376 | |
94a79942 | 377 | tcb_desc->bUseShortGI = false; |
ecdfa446 | 378 | |
f38d223b | 379 | if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT) |
ecdfa446 GKH |
380 | return; |
381 | ||
f38d223b | 382 | if (pHTInfo->bForcedShortGI) { |
ecdfa446 GKH |
383 | tcb_desc->bUseShortGI = true; |
384 | return; | |
385 | } | |
386 | ||
f38d223b | 387 | if ((pHTInfo->bCurBW40MHz == true) && pHTInfo->bCurShortGI40MHz) |
ecdfa446 | 388 | tcb_desc->bUseShortGI = true; |
f38d223b | 389 | else if ((pHTInfo->bCurBW40MHz == false) && pHTInfo->bCurShortGI20MHz) |
ecdfa446 GKH |
390 | tcb_desc->bUseShortGI = true; |
391 | } | |
392 | ||
ec0dc6be LF |
393 | static void rtllib_query_BandwidthMode(struct rtllib_device *ieee, |
394 | struct cb_desc *tcb_desc) | |
ecdfa446 | 395 | { |
7796d93e | 396 | struct rt_hi_throughput *pHTInfo = ieee->pHTInfo; |
ecdfa446 GKH |
397 | |
398 | tcb_desc->bPacketBW = false; | |
399 | ||
f38d223b | 400 | if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT) |
ecdfa446 GKH |
401 | return; |
402 | ||
94a79942 | 403 | if (tcb_desc->bMulticast || tcb_desc->bBroadcast) |
ecdfa446 GKH |
404 | return; |
405 | ||
f38d223b | 406 | if ((tcb_desc->data_rate & 0x80) == 0) |
ecdfa446 | 407 | return; |
f38d223b LF |
408 | if (pHTInfo->bCurBW40MHz && pHTInfo->bCurTxBW40MHz && |
409 | !ieee->bandwidth_auto_switch.bforced_tx20Mhz) | |
ecdfa446 GKH |
410 | tcb_desc->bPacketBW = true; |
411 | return; | |
412 | } | |
94a79942 | 413 | |
ec0dc6be LF |
414 | static void rtllib_query_protectionmode(struct rtllib_device *ieee, |
415 | struct cb_desc *tcb_desc, | |
416 | struct sk_buff *skb) | |
ecdfa446 | 417 | { |
ecdfa446 | 418 | tcb_desc->bRTSSTBC = false; |
94a79942 LF |
419 | tcb_desc->bRTSUseShortGI = false; |
420 | tcb_desc->bCTSEnable = false; | |
421 | tcb_desc->RTSSC = 0; | |
422 | tcb_desc->bRTSBW = false; | |
ecdfa446 | 423 | |
94a79942 | 424 | if (tcb_desc->bBroadcast || tcb_desc->bMulticast) |
ecdfa446 GKH |
425 | return; |
426 | ||
94a79942 | 427 | if (is_broadcast_ether_addr(skb->data+16)) |
ecdfa446 GKH |
428 | return; |
429 | ||
f38d223b LF |
430 | if (ieee->mode < IEEE_N_24G) { |
431 | if (skb->len > ieee->rts) { | |
ecdfa446 GKH |
432 | tcb_desc->bRTSEnable = true; |
433 | tcb_desc->rts_rate = MGN_24M; | |
f38d223b | 434 | } else if (ieee->current_network.buseprotection) { |
ecdfa446 GKH |
435 | tcb_desc->bRTSEnable = true; |
436 | tcb_desc->bCTSEnable = true; | |
437 | tcb_desc->rts_rate = MGN_24M; | |
438 | } | |
ecdfa446 | 439 | return; |
f38d223b | 440 | } else { |
7796d93e | 441 | struct rt_hi_throughput *pHTInfo = ieee->pHTInfo; |
f38d223b LF |
442 | while (true) { |
443 | if (pHTInfo->IOTAction & HT_IOT_ACT_FORCED_CTS2SELF) { | |
94a79942 LF |
444 | tcb_desc->bCTSEnable = true; |
445 | tcb_desc->rts_rate = MGN_24M; | |
446 | tcb_desc->bRTSEnable = true; | |
447 | break; | |
f38d223b LF |
448 | } else if (pHTInfo->IOTAction & (HT_IOT_ACT_FORCED_RTS | |
449 | HT_IOT_ACT_PURE_N_MODE)) { | |
94a79942 LF |
450 | tcb_desc->bRTSEnable = true; |
451 | tcb_desc->rts_rate = MGN_24M; | |
452 | break; | |
453 | } | |
f38d223b | 454 | if (ieee->current_network.buseprotection) { |
ecdfa446 GKH |
455 | tcb_desc->bRTSEnable = true; |
456 | tcb_desc->bCTSEnable = true; | |
457 | tcb_desc->rts_rate = MGN_24M; | |
458 | break; | |
459 | } | |
f38d223b | 460 | if (pHTInfo->bCurrentHTSupport && pHTInfo->bEnableHT) { |
ecdfa446 | 461 | u8 HTOpMode = pHTInfo->CurrentOpMode; |
f38d223b LF |
462 | if ((pHTInfo->bCurBW40MHz && (HTOpMode == 2 || |
463 | HTOpMode == 3)) || | |
464 | (!pHTInfo->bCurBW40MHz && HTOpMode == 3)) { | |
94a79942 | 465 | tcb_desc->rts_rate = MGN_24M; |
ecdfa446 GKH |
466 | tcb_desc->bRTSEnable = true; |
467 | break; | |
468 | } | |
469 | } | |
f38d223b | 470 | if (skb->len > ieee->rts) { |
94a79942 | 471 | tcb_desc->rts_rate = MGN_24M; |
ecdfa446 GKH |
472 | tcb_desc->bRTSEnable = true; |
473 | break; | |
474 | } | |
f38d223b | 475 | if (tcb_desc->bAMPDUEnable) { |
94a79942 | 476 | tcb_desc->rts_rate = MGN_24M; |
ecdfa446 GKH |
477 | tcb_desc->bRTSEnable = false; |
478 | break; | |
479 | } | |
ecdfa446 GKH |
480 | goto NO_PROTECTION; |
481 | } | |
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) |
ecdfa446 GKH |
486 | goto NO_PROTECTION; |
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 | ||
f38d223b LF |
513 | u16 rtllib_query_seqnum(struct rtllib_device *ieee, struct sk_buff *skb, |
514 | u8 *dst) | |
ecdfa446 | 515 | { |
94a79942 LF |
516 | u16 seqnum = 0; |
517 | ||
ecdfa446 | 518 | if (is_multicast_ether_addr(dst) || is_broadcast_ether_addr(dst)) |
94a79942 | 519 | return 0; |
f38d223b | 520 | if (IsQoSDataFrame(skb->data)) { |
60554f2b | 521 | struct tx_ts_record *pTS = NULL; |
f38d223b LF |
522 | if (!GetTs(ieee, (struct ts_common_info **)(&pTS), dst, |
523 | skb->priority, TX_DIR, true)) | |
94a79942 | 524 | return 0; |
94a79942 | 525 | seqnum = pTS->TxCurSeq; |
ecdfa446 | 526 | pTS->TxCurSeq = (pTS->TxCurSeq+1)%4096; |
94a79942 LF |
527 | return seqnum; |
528 | } | |
529 | return 0; | |
530 | } | |
531 | ||
532 | static int wme_downgrade_ac(struct sk_buff *skb) | |
533 | { | |
534 | switch (skb->priority) { | |
f38d223b LF |
535 | case 6: |
536 | case 7: | |
537 | skb->priority = 5; /* VO -> VI */ | |
538 | return 0; | |
539 | case 4: | |
540 | case 5: | |
541 | skb->priority = 3; /* VI -> BE */ | |
542 | return 0; | |
543 | case 0: | |
544 | case 3: | |
545 | skb->priority = 1; /* BE -> BK */ | |
546 | return 0; | |
547 | default: | |
548 | return -1; | |
ecdfa446 GKH |
549 | } |
550 | } | |
551 | ||
94a79942 | 552 | int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev) |
ecdfa446 | 553 | { |
f38d223b LF |
554 | struct rtllib_device *ieee = (struct rtllib_device *) |
555 | netdev_priv_rsl(dev); | |
94a79942 LF |
556 | struct rtllib_txb *txb = NULL; |
557 | struct rtllib_hdr_3addrqos *frag_hdr; | |
ecdfa446 GKH |
558 | int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size; |
559 | unsigned long flags; | |
560 | struct net_device_stats *stats = &ieee->stats; | |
561 | int ether_type = 0, encrypt; | |
562 | int bytes, fc, qos_ctl = 0, hdr_len; | |
563 | struct sk_buff *skb_frag; | |
94a79942 | 564 | struct rtllib_hdr_3addrqos header = { /* Ensure zero initialized */ |
ecdfa446 GKH |
565 | .duration_id = 0, |
566 | .seq_ctl = 0, | |
567 | .qos_ctl = 0 | |
568 | }; | |
569 | u8 dest[ETH_ALEN], src[ETH_ALEN]; | |
570 | int qos_actived = ieee->current_network.qos_data.active; | |
32c44cb5 | 571 | struct lib80211_crypt_data *crypt = NULL; |
3b83db43 | 572 | struct cb_desc *tcb_desc; |
94a79942 LF |
573 | u8 bIsMulticast = false; |
574 | u8 IsAmsdu = false; | |
f38d223b | 575 | bool bdhcp = false; |
ecdfa446 GKH |
576 | |
577 | spin_lock_irqsave(&ieee->lock, flags); | |
578 | ||
cd017123 | 579 | /* If there is no driver handler to take the TXB, don't bother |
ecdfa446 | 580 | * creating it... */ |
f38d223b LF |
581 | if ((!ieee->hard_start_xmit && !(ieee->softmac_features & |
582 | IEEE_SOFTMAC_TX_QUEUE)) || | |
583 | ((!ieee->softmac_data_hard_start_xmit && | |
584 | (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) { | |
ecdfa446 GKH |
585 | printk(KERN_WARNING "%s: No xmit handler.\n", |
586 | ieee->dev->name); | |
587 | goto success; | |
588 | } | |
589 | ||
590 | ||
f38d223b | 591 | if (likely(ieee->raw_tx == 0)) { |
ecdfa446 GKH |
592 | if (unlikely(skb->len < SNAP_SIZE + sizeof(u16))) { |
593 | printk(KERN_WARNING "%s: skb too small (%d).\n", | |
594 | ieee->dev->name, skb->len); | |
595 | goto success; | |
596 | } | |
94a79942 LF |
597 | /* Save source and destination addresses */ |
598 | memcpy(dest, skb->data, ETH_ALEN); | |
599 | memcpy(src, skb->data+ETH_ALEN, ETH_ALEN); | |
ecdfa446 GKH |
600 | |
601 | memset(skb->cb, 0, sizeof(skb->cb)); | |
602 | ether_type = ntohs(((struct ethhdr *)skb->data)->h_proto); | |
603 | ||
f38d223b | 604 | if (ieee->iw_mode == IW_MODE_MONITOR) { |
94a79942 LF |
605 | txb = rtllib_alloc_txb(1, skb->len, GFP_ATOMIC); |
606 | if (unlikely(!txb)) { | |
f38d223b LF |
607 | printk(KERN_WARNING "%s: Could not allocate " |
608 | "TXB\n", | |
94a79942 LF |
609 | ieee->dev->name); |
610 | goto failed; | |
611 | } | |
ecdfa446 | 612 | |
94a79942 LF |
613 | txb->encrypted = 0; |
614 | txb->payload_size = skb->len; | |
f38d223b LF |
615 | memcpy(skb_put(txb->fragments[0], skb->len), skb->data, |
616 | skb->len); | |
ecdfa446 | 617 | |
ecdfa446 GKH |
618 | goto success; |
619 | } | |
ecdfa446 | 620 | |
55dc4eb3 | 621 | if (skb->len > 282) { |
94a79942 | 622 | if (ETH_P_IP == ether_type) { |
f38d223b LF |
623 | const struct iphdr *ip = (struct iphdr *) |
624 | ((u8 *)skb->data+14); | |
94a79942 | 625 | if (IPPROTO_UDP == ip->protocol) { |
f38d223b LF |
626 | struct udphdr *udp; |
627 | ||
628 | udp = (struct udphdr *)((u8 *)ip + | |
629 | (ip->ihl << 2)); | |
630 | if (((((u8 *)udp)[1] == 68) && | |
631 | (((u8 *)udp)[3] == 67)) || | |
632 | ((((u8 *)udp)[1] == 67) && | |
633 | (((u8 *)udp)[3] == 68))) { | |
65a43784 | 634 | bdhcp = true; |
94a79942 | 635 | ieee->LPSDelayCnt = 200; |
65a43784 | 636 | } |
637 | } | |
f38d223b LF |
638 | } else if (ETH_P_ARP == ether_type) { |
639 | printk(KERN_INFO "=================>DHCP " | |
640 | "Protocol start tx ARP pkt!!\n"); | |
94a79942 | 641 | bdhcp = true; |
f38d223b LF |
642 | ieee->LPSDelayCnt = |
643 | ieee->current_network.tim.tim_count; | |
65a43784 | 644 | } |
94a79942 | 645 | } |
65a43784 | 646 | |
94a79942 | 647 | skb->priority = rtllib_classify(skb, IsAmsdu); |
0ddcf5fd | 648 | crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx]; |
94a79942 LF |
649 | encrypt = !(ether_type == ETH_P_PAE && ieee->ieee802_1x) && |
650 | ieee->host_encrypt && crypt && crypt->ops; | |
651 | if (!encrypt && ieee->ieee802_1x && | |
f38d223b | 652 | ieee->drop_unencrypted && ether_type != ETH_P_PAE) { |
94a79942 LF |
653 | stats->tx_dropped++; |
654 | goto success; | |
655 | } | |
94a79942 LF |
656 | if (crypt && !encrypt && ether_type == ETH_P_PAE) { |
657 | struct eapol *eap = (struct eapol *)(skb->data + | |
f38d223b LF |
658 | sizeof(struct ethhdr) - SNAP_SIZE - |
659 | sizeof(u16)); | |
94a79942 LF |
660 | RTLLIB_DEBUG_EAP("TX: IEEE 802.11 EAPOL frame: %s\n", |
661 | eap_get_type(eap->type)); | |
662 | } | |
ecdfa446 | 663 | |
94a79942 LF |
664 | /* Advance the SKB to the start of the payload */ |
665 | skb_pull(skb, sizeof(struct ethhdr)); | |
ecdfa446 | 666 | |
f38d223b | 667 | /* Determine total amount of storage required for TXB packets */ |
94a79942 | 668 | bytes = skb->len + SNAP_SIZE + sizeof(u16); |
ecdfa446 GKH |
669 | |
670 | if (encrypt) | |
94a79942 | 671 | fc = RTLLIB_FTYPE_DATA | RTLLIB_FCTL_WEP; |
ecdfa446 | 672 | else |
94a79942 | 673 | fc = RTLLIB_FTYPE_DATA; |
ecdfa446 | 674 | |
94a79942 LF |
675 | if (qos_actived) |
676 | fc |= RTLLIB_STYPE_QOS_DATA; | |
ecdfa446 | 677 | else |
94a79942 | 678 | fc |= RTLLIB_STYPE_DATA; |
ecdfa446 GKH |
679 | |
680 | if (ieee->iw_mode == IW_MODE_INFRA) { | |
94a79942 | 681 | fc |= RTLLIB_FCTL_TODS; |
ecdfa446 GKH |
682 | /* To DS: Addr1 = BSSID, Addr2 = SA, |
683 | Addr3 = DA */ | |
f38d223b LF |
684 | memcpy(&header.addr1, ieee->current_network.bssid, |
685 | ETH_ALEN); | |
ecdfa446 | 686 | memcpy(&header.addr2, &src, ETH_ALEN); |
94a79942 | 687 | if (IsAmsdu) |
f38d223b LF |
688 | memcpy(&header.addr3, |
689 | ieee->current_network.bssid, ETH_ALEN); | |
94a79942 LF |
690 | else |
691 | memcpy(&header.addr3, &dest, ETH_ALEN); | |
ecdfa446 GKH |
692 | } else if (ieee->iw_mode == IW_MODE_ADHOC) { |
693 | /* not From/To DS: Addr1 = DA, Addr2 = SA, | |
694 | Addr3 = BSSID */ | |
695 | memcpy(&header.addr1, dest, ETH_ALEN); | |
696 | memcpy(&header.addr2, src, ETH_ALEN); | |
f38d223b LF |
697 | memcpy(&header.addr3, ieee->current_network.bssid, |
698 | ETH_ALEN); | |
ecdfa446 GKH |
699 | } |
700 | ||
f38d223b LF |
701 | bIsMulticast = is_broadcast_ether_addr(header.addr1) || |
702 | is_multicast_ether_addr(header.addr1); | |
94a79942 | 703 | |
f38d223b | 704 | header.frame_ctl = cpu_to_le16(fc); |
ecdfa446 GKH |
705 | |
706 | /* Determine fragmentation size based on destination (multicast | |
707 | * and broadcast are not fragmented) */ | |
94a79942 | 708 | if (bIsMulticast) { |
ecdfa446 GKH |
709 | frag_size = MAX_FRAG_THRESHOLD; |
710 | qos_ctl |= QOS_CTL_NOTCONTAIN_ACK; | |
94a79942 LF |
711 | } else { |
712 | frag_size = ieee->fts; | |
ecdfa446 GKH |
713 | qos_ctl = 0; |
714 | } | |
715 | ||
94a79942 LF |
716 | if (qos_actived) { |
717 | hdr_len = RTLLIB_3ADDR_LEN + 2; | |
718 | ||
f38d223b LF |
719 | /* in case we are a client verify acm is not set for this ac */ |
720 | while (unlikely(ieee->wmm_acm & (0x01 << skb->priority))) { | |
721 | printk(KERN_INFO "skb->priority = %x\n", skb->priority); | |
722 | if (wme_downgrade_ac(skb)) | |
723 | break; | |
724 | printk(KERN_INFO "converted skb->priority = %x\n", | |
725 | skb->priority); | |
726 | } | |
727 | qos_ctl |= skb->priority; | |
728 | header.qos_ctl = cpu_to_le16(qos_ctl & RTLLIB_QOS_TID); | |
ecdfa446 | 729 | } else { |
94a79942 | 730 | hdr_len = RTLLIB_3ADDR_LEN; |
ecdfa446 GKH |
731 | } |
732 | /* Determine amount of payload per fragment. Regardless of if | |
f38d223b LF |
733 | * this stack is providing the full 802.11 header, one will |
734 | * eventually be affixed to this fragment -- so we must account | |
735 | * for it when determining the amount of payload space. */ | |
ecdfa446 GKH |
736 | bytes_per_frag = frag_size - hdr_len; |
737 | if (ieee->config & | |
f38d223b | 738 | (CFG_RTLLIB_COMPUTE_FCS | CFG_RTLLIB_RESERVE_FCS)) |
94a79942 | 739 | bytes_per_frag -= RTLLIB_FCS_LEN; |
ecdfa446 | 740 | |
cd017123 | 741 | /* Each fragment may need to have room for encrypting |
f38d223b | 742 | * pre/postfix */ |
94a79942 | 743 | if (encrypt) { |
32c44cb5 SM |
744 | bytes_per_frag -= crypt->ops->extra_mpdu_prefix_len + |
745 | crypt->ops->extra_mpdu_postfix_len + | |
746 | crypt->ops->extra_msdu_prefix_len + | |
747 | crypt->ops->extra_msdu_postfix_len; | |
94a79942 | 748 | } |
ecdfa446 GKH |
749 | /* Number of fragments is the total bytes_per_frag / |
750 | * payload_per_fragment */ | |
751 | nr_frags = bytes / bytes_per_frag; | |
752 | bytes_last_frag = bytes % bytes_per_frag; | |
753 | if (bytes_last_frag) | |
754 | nr_frags++; | |
755 | else | |
756 | bytes_last_frag = bytes_per_frag; | |
757 | ||
f38d223b LF |
758 | /* When we allocate the TXB we allocate enough space for the |
759 | * reserve and full fragment bytes (bytes_per_frag doesn't | |
760 | * include prefix, postfix, header, FCS, etc.) */ | |
761 | txb = rtllib_alloc_txb(nr_frags, frag_size + | |
762 | ieee->tx_headroom, GFP_ATOMIC); | |
ecdfa446 GKH |
763 | if (unlikely(!txb)) { |
764 | printk(KERN_WARNING "%s: Could not allocate TXB\n", | |
765 | ieee->dev->name); | |
766 | goto failed; | |
767 | } | |
768 | txb->encrypted = encrypt; | |
769 | txb->payload_size = bytes; | |
770 | ||
94a79942 | 771 | if (qos_actived) |
ecdfa446 | 772 | txb->queue_index = UP2AC(skb->priority); |
f38d223b LF |
773 | else |
774 | txb->queue_index = WME_AC_BE; | |
ecdfa446 | 775 | |
ecdfa446 GKH |
776 | for (i = 0; i < nr_frags; i++) { |
777 | skb_frag = txb->fragments[i]; | |
f38d223b LF |
778 | tcb_desc = (struct cb_desc *)(skb_frag->cb + |
779 | MAX_DEV_ADDR_SIZE); | |
780 | if (qos_actived) { | |
94a79942 | 781 | skb_frag->priority = skb->priority; |
ecdfa446 GKH |
782 | tcb_desc->queue_index = UP2AC(skb->priority); |
783 | } else { | |
94a79942 LF |
784 | skb_frag->priority = WME_AC_BE; |
785 | tcb_desc->queue_index = WME_AC_BE; | |
ecdfa446 GKH |
786 | } |
787 | skb_reserve(skb_frag, ieee->tx_headroom); | |
788 | ||
f38d223b | 789 | if (encrypt) { |
ecdfa446 GKH |
790 | if (ieee->hwsec_active) |
791 | tcb_desc->bHwSec = 1; | |
792 | else | |
793 | tcb_desc->bHwSec = 0; | |
f38d223b | 794 | skb_reserve(skb_frag, |
32c44cb5 SM |
795 | crypt->ops->extra_mpdu_prefix_len + |
796 | crypt->ops->extra_msdu_prefix_len); | |
94a79942 | 797 | } else { |
ecdfa446 GKH |
798 | tcb_desc->bHwSec = 0; |
799 | } | |
f38d223b LF |
800 | frag_hdr = (struct rtllib_hdr_3addrqos *) |
801 | skb_put(skb_frag, hdr_len); | |
ecdfa446 GKH |
802 | memcpy(frag_hdr, &header, hdr_len); |
803 | ||
f38d223b LF |
804 | /* If this is not the last fragment, then add the |
805 | * MOREFRAGS bit to the frame control */ | |
ecdfa446 GKH |
806 | if (i != nr_frags - 1) { |
807 | frag_hdr->frame_ctl = cpu_to_le16( | |
94a79942 | 808 | fc | RTLLIB_FCTL_MOREFRAGS); |
ecdfa446 GKH |
809 | bytes = bytes_per_frag; |
810 | ||
811 | } else { | |
f38d223b | 812 | /* The last fragment has the remaining length */ |
ecdfa446 GKH |
813 | bytes = bytes_last_frag; |
814 | } | |
f38d223b LF |
815 | if ((qos_actived) && (!bIsMulticast)) { |
816 | frag_hdr->seq_ctl = | |
817 | rtllib_query_seqnum(ieee, skb_frag, | |
818 | header.addr1); | |
819 | frag_hdr->seq_ctl = | |
820 | cpu_to_le16(frag_hdr->seq_ctl<<4 | i); | |
ecdfa446 | 821 | } else { |
f38d223b LF |
822 | frag_hdr->seq_ctl = |
823 | cpu_to_le16(ieee->seq_ctrl[0]<<4 | i); | |
ecdfa446 | 824 | } |
ecdfa446 GKH |
825 | /* Put a SNAP header on the first fragment */ |
826 | if (i == 0) { | |
94a79942 | 827 | rtllib_put_snap( |
f38d223b LF |
828 | skb_put(skb_frag, SNAP_SIZE + |
829 | sizeof(u16)), ether_type); | |
ecdfa446 GKH |
830 | bytes -= SNAP_SIZE + sizeof(u16); |
831 | } | |
832 | ||
833 | memcpy(skb_put(skb_frag, bytes), skb->data, bytes); | |
834 | ||
835 | /* Advance the SKB... */ | |
836 | skb_pull(skb, bytes); | |
837 | ||
f38d223b LF |
838 | /* Encryption routine will move the header forward in |
839 | * order to insert the IV between the header and the | |
840 | * payload */ | |
ecdfa446 | 841 | if (encrypt) |
f38d223b LF |
842 | rtllib_encrypt_fragment(ieee, skb_frag, |
843 | hdr_len); | |
ecdfa446 | 844 | if (ieee->config & |
f38d223b | 845 | (CFG_RTLLIB_COMPUTE_FCS | CFG_RTLLIB_RESERVE_FCS)) |
ecdfa446 GKH |
846 | skb_put(skb_frag, 4); |
847 | } | |
848 | ||
94a79942 | 849 | if ((qos_actived) && (!bIsMulticast)) { |
f38d223b LF |
850 | if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF) |
851 | ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0; | |
852 | else | |
853 | ieee->seq_ctrl[UP2AC(skb->priority) + 1]++; | |
ecdfa446 | 854 | } else { |
f38d223b LF |
855 | if (ieee->seq_ctrl[0] == 0xFFF) |
856 | ieee->seq_ctrl[0] = 0; | |
857 | else | |
858 | ieee->seq_ctrl[0]++; | |
ecdfa446 | 859 | } |
f38d223b | 860 | } else { |
94a79942 | 861 | if (unlikely(skb->len < sizeof(struct rtllib_hdr_3addr))) { |
ecdfa446 GKH |
862 | printk(KERN_WARNING "%s: skb too small (%d).\n", |
863 | ieee->dev->name, skb->len); | |
864 | goto success; | |
865 | } | |
866 | ||
94a79942 | 867 | txb = rtllib_alloc_txb(1, skb->len, GFP_ATOMIC); |
f38d223b | 868 | if (!txb) { |
ecdfa446 GKH |
869 | printk(KERN_WARNING "%s: Could not allocate TXB\n", |
870 | ieee->dev->name); | |
871 | goto failed; | |
872 | } | |
873 | ||
874 | txb->encrypted = 0; | |
875 | txb->payload_size = skb->len; | |
f38d223b LF |
876 | memcpy(skb_put(txb->fragments[0], skb->len), skb->data, |
877 | skb->len); | |
ecdfa446 GKH |
878 | } |
879 | ||
880 | success: | |
f38d223b LF |
881 | if (txb) { |
882 | struct cb_desc *tcb_desc = (struct cb_desc *) | |
883 | (txb->fragments[0]->cb + MAX_DEV_ADDR_SIZE); | |
ecdfa446 | 884 | tcb_desc->bTxEnableFwCalcDur = 1; |
94a79942 | 885 | tcb_desc->priority = skb->priority; |
65a43784 | 886 | |
94a79942 | 887 | if (ether_type == ETH_P_PAE) { |
f38d223b LF |
888 | if (ieee->pHTInfo->IOTAction & |
889 | HT_IOT_ACT_WA_IOT_Broadcom) { | |
890 | tcb_desc->data_rate = | |
891 | MgntQuery_TxRateExcludeCCKRates(ieee); | |
94a79942 | 892 | tcb_desc->bTxDisableRateFallBack = false; |
f38d223b | 893 | } else { |
94a79942 | 894 | tcb_desc->data_rate = ieee->basic_rate; |
65a43784 | 895 | tcb_desc->bTxDisableRateFallBack = 1; |
94a79942 LF |
896 | } |
897 | ||
65a43784 | 898 | |
899 | tcb_desc->RATRIndex = 7; | |
900 | tcb_desc->bTxUseDriverAssingedRate = 1; | |
94a79942 LF |
901 | } else { |
902 | if (is_multicast_ether_addr(header.addr1)) | |
903 | tcb_desc->bMulticast = 1; | |
904 | if (is_broadcast_ether_addr(header.addr1)) | |
905 | tcb_desc->bBroadcast = 1; | |
94a79942 | 906 | rtllib_txrate_selectmode(ieee, tcb_desc); |
f38d223b | 907 | if (tcb_desc->bMulticast || tcb_desc->bBroadcast) |
94a79942 LF |
908 | tcb_desc->data_rate = ieee->basic_rate; |
909 | else | |
f38d223b LF |
910 | tcb_desc->data_rate = CURRENT_RATE(ieee->mode, |
911 | ieee->rate, ieee->HTCurrentOperaRate); | |
912 | ||
913 | if (bdhcp == true) { | |
914 | if (ieee->pHTInfo->IOTAction & | |
915 | HT_IOT_ACT_WA_IOT_Broadcom) { | |
916 | tcb_desc->data_rate = | |
917 | MgntQuery_TxRateExcludeCCKRates(ieee); | |
94a79942 | 918 | tcb_desc->bTxDisableRateFallBack = false; |
f38d223b | 919 | } else { |
94a79942 LF |
920 | tcb_desc->data_rate = MGN_1M; |
921 | tcb_desc->bTxDisableRateFallBack = 1; | |
922 | } | |
65a43784 | 923 | |
924 | ||
94a79942 LF |
925 | tcb_desc->RATRIndex = 7; |
926 | tcb_desc->bTxUseDriverAssingedRate = 1; | |
927 | tcb_desc->bdhcp = 1; | |
928 | } | |
929 | ||
930 | rtllib_qurey_ShortPreambleMode(ieee, tcb_desc); | |
f38d223b LF |
931 | rtllib_tx_query_agg_cap(ieee, txb->fragments[0], |
932 | tcb_desc); | |
94a79942 LF |
933 | rtllib_query_HTCapShortGI(ieee, tcb_desc); |
934 | rtllib_query_BandwidthMode(ieee, tcb_desc); | |
f38d223b LF |
935 | rtllib_query_protectionmode(ieee, tcb_desc, |
936 | txb->fragments[0]); | |
94a79942 | 937 | } |
ecdfa446 GKH |
938 | } |
939 | spin_unlock_irqrestore(&ieee->lock, flags); | |
940 | dev_kfree_skb_any(skb); | |
941 | if (txb) { | |
f38d223b | 942 | if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE) { |
94a79942 LF |
943 | dev->stats.tx_packets++; |
944 | dev->stats.tx_bytes += txb->payload_size; | |
945 | rtllib_softmac_xmit(txb, ieee); | |
f38d223b | 946 | } else { |
94a79942 | 947 | if ((*ieee->hard_start_xmit)(txb, dev) == 0) { |
ecdfa446 GKH |
948 | stats->tx_packets++; |
949 | stats->tx_bytes += txb->payload_size; | |
950 | return 0; | |
951 | } | |
94a79942 | 952 | rtllib_txb_free(txb); |
ecdfa446 GKH |
953 | } |
954 | } | |
955 | ||
956 | return 0; | |
957 | ||
958 | failed: | |
959 | spin_unlock_irqrestore(&ieee->lock, flags); | |
960 | netif_stop_queue(dev); | |
961 | stats->tx_errors++; | |
962 | return 1; | |
963 | ||
964 | } | |
94a79942 LF |
965 | int rtllib_xmit(struct sk_buff *skb, struct net_device *dev) |
966 | { | |
967 | memset(skb->cb, 0, sizeof(skb->cb)); | |
968 | return rtllib_xmit_inter(skb, dev); | |
969 | } | |
3b28499c | 970 | EXPORT_SYMBOL(rtllib_xmit); |