Commit | Line | Data |
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5b435de0 AS |
1 | /* |
2 | * Copyright (c) 2010 Broadcom Corporation | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
5b435de0 | 17 | #include <linux/kernel.h> |
5b435de0 | 18 | #include <linux/etherdevice.h> |
b7a57e76 | 19 | #include <linux/module.h> |
5b435de0 AS |
20 | #include <net/cfg80211.h> |
21 | #include <net/rtnetlink.h> | |
5b435de0 AS |
22 | #include <brcmu_utils.h> |
23 | #include <brcmu_wifi.h> | |
24 | ||
122d3d04 | 25 | #include "core.h" |
d14f78b9 | 26 | #include "bus.h" |
a8e8ed34 | 27 | #include "debug.h" |
7a5c1f64 | 28 | #include "fwil_types.h" |
9f440b7b | 29 | #include "p2p.h" |
bfe81975 | 30 | #include "cfg80211.h" |
db22ae8c | 31 | #include "fwil.h" |
349e7104 | 32 | #include "fwsignal.h" |
c08437b4 | 33 | #include "feature.h" |
85b84133 | 34 | #include "proto.h" |
9e37f045 | 35 | #include "pcie.h" |
5b435de0 AS |
36 | |
37 | MODULE_AUTHOR("Broadcom Corporation"); | |
b87e2c48 | 38 | MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver."); |
5b435de0 AS |
39 | MODULE_LICENSE("Dual BSD/GPL"); |
40 | ||
21fff75d | 41 | #define MAX_WAIT_FOR_8021X_TX 50 /* msecs */ |
5b435de0 | 42 | |
87edd891 AS |
43 | /* AMPDU rx reordering definitions */ |
44 | #define BRCMF_RXREORDER_FLOWID_OFFSET 0 | |
45 | #define BRCMF_RXREORDER_MAXIDX_OFFSET 2 | |
46 | #define BRCMF_RXREORDER_FLAGS_OFFSET 4 | |
47 | #define BRCMF_RXREORDER_CURIDX_OFFSET 6 | |
48 | #define BRCMF_RXREORDER_EXPIDX_OFFSET 8 | |
49 | ||
50 | #define BRCMF_RXREORDER_DEL_FLOW 0x01 | |
51 | #define BRCMF_RXREORDER_FLUSH_ALL 0x02 | |
52 | #define BRCMF_RXREORDER_CURIDX_VALID 0x04 | |
53 | #define BRCMF_RXREORDER_EXPIDX_VALID 0x08 | |
54 | #define BRCMF_RXREORDER_NEW_HOLE 0x10 | |
55 | ||
5b435de0 | 56 | /* Error bits */ |
5e8149f5 | 57 | int brcmf_msg_level; |
1b255c92 AS |
58 | module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR); |
59 | MODULE_PARM_DESC(debug, "level of debug output"); | |
5b435de0 | 60 | |
2fde59d9 HM |
61 | /* P2P0 enable */ |
62 | static int brcmf_p2p_enable; | |
63 | #ifdef CONFIG_BRCMDBG | |
64 | module_param_named(p2pon, brcmf_p2p_enable, int, 0); | |
65 | MODULE_PARM_DESC(p2pon, "enable p2p management functionality"); | |
66 | #endif | |
5b435de0 AS |
67 | |
68 | char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx) | |
69 | { | |
5b435de0 | 70 | if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) { |
5e8149f5 | 71 | brcmf_err("ifidx %d out of range\n", ifidx); |
5b435de0 AS |
72 | return "<if_bad>"; |
73 | } | |
74 | ||
d08b6a37 | 75 | if (drvr->iflist[ifidx] == NULL) { |
5e8149f5 | 76 | brcmf_err("null i/f %d\n", ifidx); |
5b435de0 AS |
77 | return "<if_null>"; |
78 | } | |
79 | ||
d08b6a37 FL |
80 | if (drvr->iflist[ifidx]->ndev) |
81 | return drvr->iflist[ifidx]->ndev->name; | |
5b435de0 AS |
82 | |
83 | return "<if_none>"; | |
84 | } | |
85 | ||
86 | static void _brcmf_set_multicast_list(struct work_struct *work) | |
87 | { | |
db22ae8c | 88 | struct brcmf_if *ifp; |
5b435de0 AS |
89 | struct net_device *ndev; |
90 | struct netdev_hw_addr *ha; | |
db22ae8c | 91 | u32 cmd_value, cnt; |
5b435de0 | 92 | __le32 cnt_le; |
5b435de0 | 93 | char *buf, *bufp; |
db22ae8c HM |
94 | u32 buflen; |
95 | s32 err; | |
5b435de0 | 96 | |
bdf5ff51 | 97 | ifp = container_of(work, struct brcmf_if, multicast_work); |
94889b1f | 98 | |
2880b868 | 99 | brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
94889b1f | 100 | |
db22ae8c | 101 | ndev = ifp->ndev; |
5b435de0 AS |
102 | |
103 | /* Determine initial value of allmulti flag */ | |
db22ae8c | 104 | cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false; |
5b435de0 AS |
105 | |
106 | /* Send down the multicast list first. */ | |
db22ae8c HM |
107 | cnt = netdev_mc_count(ndev); |
108 | buflen = sizeof(cnt) + (cnt * ETH_ALEN); | |
109 | buf = kmalloc(buflen, GFP_ATOMIC); | |
110 | if (!buf) | |
5b435de0 | 111 | return; |
db22ae8c | 112 | bufp = buf; |
5b435de0 AS |
113 | |
114 | cnt_le = cpu_to_le32(cnt); | |
db22ae8c | 115 | memcpy(bufp, &cnt_le, sizeof(cnt_le)); |
5b435de0 AS |
116 | bufp += sizeof(cnt_le); |
117 | ||
118 | netdev_for_each_mc_addr(ha, ndev) { | |
119 | if (!cnt) | |
120 | break; | |
121 | memcpy(bufp, ha->addr, ETH_ALEN); | |
122 | bufp += ETH_ALEN; | |
123 | cnt--; | |
124 | } | |
125 | ||
db22ae8c HM |
126 | err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen); |
127 | if (err < 0) { | |
5e8149f5 | 128 | brcmf_err("Setting mcast_list failed, %d\n", err); |
db22ae8c | 129 | cmd_value = cnt ? true : cmd_value; |
5b435de0 AS |
130 | } |
131 | ||
132 | kfree(buf); | |
133 | ||
db22ae8c HM |
134 | /* |
135 | * Now send the allmulti setting. This is based on the setting in the | |
5b435de0 AS |
136 | * net_device flags, but might be modified above to be turned on if we |
137 | * were trying to set some addresses and dongle rejected it... | |
138 | */ | |
db22ae8c HM |
139 | err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value); |
140 | if (err < 0) | |
5e8149f5 | 141 | brcmf_err("Setting allmulti failed, %d\n", err); |
db22ae8c HM |
142 | |
143 | /*Finally, pick up the PROMISC flag */ | |
144 | cmd_value = (ndev->flags & IFF_PROMISC) ? true : false; | |
145 | err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value); | |
146 | if (err < 0) | |
5e8149f5 | 147 | brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n", |
db22ae8c | 148 | err); |
5b435de0 AS |
149 | } |
150 | ||
151 | static void | |
152 | _brcmf_set_mac_address(struct work_struct *work) | |
153 | { | |
db22ae8c | 154 | struct brcmf_if *ifp; |
db22ae8c | 155 | s32 err; |
5b435de0 | 156 | |
bdf5ff51 | 157 | ifp = container_of(work, struct brcmf_if, setmacaddr_work); |
94889b1f | 158 | |
2880b868 | 159 | brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
94889b1f | 160 | |
bdf5ff51 | 161 | err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", ifp->mac_addr, |
db22ae8c HM |
162 | ETH_ALEN); |
163 | if (err < 0) { | |
5e8149f5 | 164 | brcmf_err("Setting cur_etheraddr failed, %d\n", err); |
db22ae8c HM |
165 | } else { |
166 | brcmf_dbg(TRACE, "MAC address updated to %pM\n", | |
bdf5ff51 AS |
167 | ifp->mac_addr); |
168 | memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN); | |
db22ae8c | 169 | } |
5b435de0 AS |
170 | } |
171 | ||
172 | static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr) | |
173 | { | |
e1b83586 | 174 | struct brcmf_if *ifp = netdev_priv(ndev); |
5b435de0 | 175 | struct sockaddr *sa = (struct sockaddr *)addr; |
5b435de0 | 176 | |
bdf5ff51 AS |
177 | memcpy(&ifp->mac_addr, sa->sa_data, ETH_ALEN); |
178 | schedule_work(&ifp->setmacaddr_work); | |
5b435de0 AS |
179 | return 0; |
180 | } | |
181 | ||
182 | static void brcmf_netdev_set_multicast_list(struct net_device *ndev) | |
183 | { | |
e1b83586 | 184 | struct brcmf_if *ifp = netdev_priv(ndev); |
5b435de0 | 185 | |
bdf5ff51 | 186 | schedule_work(&ifp->multicast_work); |
5b435de0 AS |
187 | } |
188 | ||
80fd2dbe HM |
189 | static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb, |
190 | struct net_device *ndev) | |
5b435de0 AS |
191 | { |
192 | int ret; | |
e1b83586 | 193 | struct brcmf_if *ifp = netdev_priv(ndev); |
d08b6a37 | 194 | struct brcmf_pub *drvr = ifp->drvr; |
55929443 | 195 | struct ethhdr *eh = (struct ethhdr *)(skb->data); |
5b435de0 | 196 | |
8071fd61 | 197 | brcmf_dbg(DATA, "Enter, idx=%d\n", ifp->bssidx); |
5b435de0 | 198 | |
80fd2dbe | 199 | /* Can the device send data? */ |
a1cee865 | 200 | if (drvr->bus_if->state != BRCMF_BUS_UP) { |
80fd2dbe | 201 | brcmf_err("xmit rejected state=%d\n", drvr->bus_if->state); |
5b435de0 | 202 | netif_stop_queue(ndev); |
80fd2dbe HM |
203 | dev_kfree_skb(skb); |
204 | ret = -ENODEV; | |
205 | goto done; | |
5b435de0 AS |
206 | } |
207 | ||
2880b868 HM |
208 | if (!drvr->iflist[ifp->bssidx]) { |
209 | brcmf_err("bad ifidx %d\n", ifp->bssidx); | |
5b435de0 | 210 | netif_stop_queue(ndev); |
80fd2dbe HM |
211 | dev_kfree_skb(skb); |
212 | ret = -ENODEV; | |
213 | goto done; | |
5b435de0 AS |
214 | } |
215 | ||
216 | /* Make sure there's enough room for any header */ | |
d08b6a37 | 217 | if (skb_headroom(skb) < drvr->hdrlen) { |
5b435de0 AS |
218 | struct sk_buff *skb2; |
219 | ||
220 | brcmf_dbg(INFO, "%s: insufficient headroom\n", | |
2880b868 | 221 | brcmf_ifname(drvr, ifp->bssidx)); |
9c1a043a | 222 | drvr->bus_if->tx_realloc++; |
d08b6a37 | 223 | skb2 = skb_realloc_headroom(skb, drvr->hdrlen); |
5b435de0 AS |
224 | dev_kfree_skb(skb); |
225 | skb = skb2; | |
226 | if (skb == NULL) { | |
5e8149f5 | 227 | brcmf_err("%s: skb_realloc_headroom failed\n", |
2880b868 | 228 | brcmf_ifname(drvr, ifp->bssidx)); |
5b435de0 AS |
229 | ret = -ENOMEM; |
230 | goto done; | |
231 | } | |
232 | } | |
233 | ||
12b33dac AS |
234 | /* validate length for ether packet */ |
235 | if (skb->len < sizeof(*eh)) { | |
236 | ret = -EINVAL; | |
237 | dev_kfree_skb(skb); | |
238 | goto done; | |
8514fd02 FL |
239 | } |
240 | ||
55929443 HM |
241 | if (eh->h_proto == htons(ETH_P_PAE)) |
242 | atomic_inc(&ifp->pend_8021x_cnt); | |
243 | ||
3edc1cff | 244 | ret = brcmf_fws_process_skb(ifp, skb); |
5b435de0 AS |
245 | |
246 | done: | |
b1a2a411 HM |
247 | if (ret) { |
248 | ifp->stats.tx_dropped++; | |
249 | } else { | |
250 | ifp->stats.tx_packets++; | |
251 | ifp->stats.tx_bytes += skb->len; | |
252 | } | |
5b435de0 AS |
253 | |
254 | /* Return ok: we always eat the packet */ | |
80fd2dbe | 255 | return NETDEV_TX_OK; |
5b435de0 AS |
256 | } |
257 | ||
29e04ae3 AS |
258 | void brcmf_txflowblock_if(struct brcmf_if *ifp, |
259 | enum brcmf_netif_stop_reason reason, bool state) | |
260 | { | |
df50f756 HM |
261 | unsigned long flags; |
262 | ||
23d412a2 | 263 | if (!ifp || !ifp->ndev) |
29e04ae3 AS |
264 | return; |
265 | ||
266 | brcmf_dbg(TRACE, "enter: idx=%d stop=0x%X reason=%d state=%d\n", | |
267 | ifp->bssidx, ifp->netif_stop, reason, state); | |
df50f756 HM |
268 | |
269 | spin_lock_irqsave(&ifp->netif_stop_lock, flags); | |
29e04ae3 AS |
270 | if (state) { |
271 | if (!ifp->netif_stop) | |
272 | netif_stop_queue(ifp->ndev); | |
273 | ifp->netif_stop |= reason; | |
274 | } else { | |
275 | ifp->netif_stop &= ~reason; | |
276 | if (!ifp->netif_stop) | |
277 | netif_wake_queue(ifp->ndev); | |
278 | } | |
df50f756 | 279 | spin_unlock_irqrestore(&ifp->netif_stop_lock, flags); |
29e04ae3 AS |
280 | } |
281 | ||
90d03ff7 | 282 | void brcmf_txflowblock(struct device *dev, bool state) |
5b435de0 | 283 | { |
2b459056 FL |
284 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
285 | struct brcmf_pub *drvr = bus_if->drvr; | |
5b435de0 AS |
286 | |
287 | brcmf_dbg(TRACE, "Enter\n"); | |
288 | ||
0a4254be | 289 | brcmf_fws_bus_blocked(drvr, state); |
5b435de0 AS |
290 | } |
291 | ||
9374a2b5 | 292 | void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb) |
87edd891 AS |
293 | { |
294 | skb->dev = ifp->ndev; | |
295 | skb->protocol = eth_type_trans(skb, skb->dev); | |
296 | ||
297 | if (skb->pkt_type == PACKET_MULTICAST) | |
298 | ifp->stats.multicast++; | |
299 | ||
300 | /* Process special event packets */ | |
301 | brcmf_fweh_process_skb(ifp->drvr, skb); | |
302 | ||
303 | if (!(ifp->ndev->flags & IFF_UP)) { | |
304 | brcmu_pkt_buf_free_skb(skb); | |
305 | return; | |
306 | } | |
307 | ||
308 | ifp->stats.rx_bytes += skb->len; | |
309 | ifp->stats.rx_packets++; | |
310 | ||
311 | brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol)); | |
312 | if (in_interrupt()) | |
313 | netif_rx(skb); | |
314 | else | |
315 | /* If the receive is not processed inside an ISR, | |
316 | * the softirqd must be woken explicitly to service | |
317 | * the NET_RX_SOFTIRQ. This is handled by netif_rx_ni(). | |
318 | */ | |
319 | netif_rx_ni(skb); | |
320 | } | |
321 | ||
322 | static void brcmf_rxreorder_get_skb_list(struct brcmf_ampdu_rx_reorder *rfi, | |
323 | u8 start, u8 end, | |
324 | struct sk_buff_head *skb_list) | |
325 | { | |
326 | /* initialize return list */ | |
327 | __skb_queue_head_init(skb_list); | |
328 | ||
329 | if (rfi->pend_pkts == 0) { | |
330 | brcmf_dbg(INFO, "no packets in reorder queue\n"); | |
331 | return; | |
332 | } | |
333 | ||
334 | do { | |
335 | if (rfi->pktslots[start]) { | |
336 | __skb_queue_tail(skb_list, rfi->pktslots[start]); | |
337 | rfi->pktslots[start] = NULL; | |
338 | } | |
339 | start++; | |
340 | if (start > rfi->max_idx) | |
341 | start = 0; | |
342 | } while (start != end); | |
343 | rfi->pend_pkts -= skb_queue_len(skb_list); | |
344 | } | |
345 | ||
346 | static void brcmf_rxreorder_process_info(struct brcmf_if *ifp, u8 *reorder_data, | |
347 | struct sk_buff *pkt) | |
348 | { | |
349 | u8 flow_id, max_idx, cur_idx, exp_idx, end_idx; | |
350 | struct brcmf_ampdu_rx_reorder *rfi; | |
351 | struct sk_buff_head reorder_list; | |
352 | struct sk_buff *pnext; | |
353 | u8 flags; | |
354 | u32 buf_size; | |
355 | ||
356 | flow_id = reorder_data[BRCMF_RXREORDER_FLOWID_OFFSET]; | |
357 | flags = reorder_data[BRCMF_RXREORDER_FLAGS_OFFSET]; | |
358 | ||
359 | /* validate flags and flow id */ | |
360 | if (flags == 0xFF) { | |
361 | brcmf_err("invalid flags...so ignore this packet\n"); | |
362 | brcmf_netif_rx(ifp, pkt); | |
363 | return; | |
364 | } | |
365 | ||
366 | rfi = ifp->drvr->reorder_flows[flow_id]; | |
367 | if (flags & BRCMF_RXREORDER_DEL_FLOW) { | |
368 | brcmf_dbg(INFO, "flow-%d: delete\n", | |
369 | flow_id); | |
370 | ||
371 | if (rfi == NULL) { | |
372 | brcmf_dbg(INFO, "received flags to cleanup, but no flow (%d) yet\n", | |
373 | flow_id); | |
374 | brcmf_netif_rx(ifp, pkt); | |
375 | return; | |
376 | } | |
377 | ||
378 | brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, rfi->exp_idx, | |
379 | &reorder_list); | |
380 | /* add the last packet */ | |
381 | __skb_queue_tail(&reorder_list, pkt); | |
382 | kfree(rfi); | |
383 | ifp->drvr->reorder_flows[flow_id] = NULL; | |
384 | goto netif_rx; | |
385 | } | |
386 | /* from here on we need a flow reorder instance */ | |
387 | if (rfi == NULL) { | |
388 | buf_size = sizeof(*rfi); | |
389 | max_idx = reorder_data[BRCMF_RXREORDER_MAXIDX_OFFSET]; | |
390 | ||
391 | buf_size += (max_idx + 1) * sizeof(pkt); | |
392 | ||
393 | /* allocate space for flow reorder info */ | |
394 | brcmf_dbg(INFO, "flow-%d: start, maxidx %d\n", | |
395 | flow_id, max_idx); | |
396 | rfi = kzalloc(buf_size, GFP_ATOMIC); | |
397 | if (rfi == NULL) { | |
398 | brcmf_err("failed to alloc buffer\n"); | |
399 | brcmf_netif_rx(ifp, pkt); | |
400 | return; | |
401 | } | |
402 | ||
403 | ifp->drvr->reorder_flows[flow_id] = rfi; | |
404 | rfi->pktslots = (struct sk_buff **)(rfi+1); | |
405 | rfi->max_idx = max_idx; | |
406 | } | |
407 | if (flags & BRCMF_RXREORDER_NEW_HOLE) { | |
408 | if (rfi->pend_pkts) { | |
409 | brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, | |
410 | rfi->exp_idx, | |
411 | &reorder_list); | |
412 | WARN_ON(rfi->pend_pkts); | |
413 | } else { | |
414 | __skb_queue_head_init(&reorder_list); | |
415 | } | |
416 | rfi->cur_idx = reorder_data[BRCMF_RXREORDER_CURIDX_OFFSET]; | |
417 | rfi->exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET]; | |
418 | rfi->max_idx = reorder_data[BRCMF_RXREORDER_MAXIDX_OFFSET]; | |
419 | rfi->pktslots[rfi->cur_idx] = pkt; | |
420 | rfi->pend_pkts++; | |
421 | brcmf_dbg(DATA, "flow-%d: new hole %d (%d), pending %d\n", | |
422 | flow_id, rfi->cur_idx, rfi->exp_idx, rfi->pend_pkts); | |
423 | } else if (flags & BRCMF_RXREORDER_CURIDX_VALID) { | |
424 | cur_idx = reorder_data[BRCMF_RXREORDER_CURIDX_OFFSET]; | |
425 | exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET]; | |
426 | ||
427 | if ((exp_idx == rfi->exp_idx) && (cur_idx != rfi->exp_idx)) { | |
428 | /* still in the current hole */ | |
429 | /* enqueue the current on the buffer chain */ | |
430 | if (rfi->pktslots[cur_idx] != NULL) { | |
431 | brcmf_dbg(INFO, "HOLE: ERROR buffer pending..free it\n"); | |
432 | brcmu_pkt_buf_free_skb(rfi->pktslots[cur_idx]); | |
433 | rfi->pktslots[cur_idx] = NULL; | |
434 | } | |
435 | rfi->pktslots[cur_idx] = pkt; | |
436 | rfi->pend_pkts++; | |
437 | rfi->cur_idx = cur_idx; | |
438 | brcmf_dbg(DATA, "flow-%d: store pkt %d (%d), pending %d\n", | |
439 | flow_id, cur_idx, exp_idx, rfi->pend_pkts); | |
440 | ||
441 | /* can return now as there is no reorder | |
442 | * list to process. | |
443 | */ | |
444 | return; | |
445 | } | |
446 | if (rfi->exp_idx == cur_idx) { | |
447 | if (rfi->pktslots[cur_idx] != NULL) { | |
448 | brcmf_dbg(INFO, "error buffer pending..free it\n"); | |
449 | brcmu_pkt_buf_free_skb(rfi->pktslots[cur_idx]); | |
450 | rfi->pktslots[cur_idx] = NULL; | |
451 | } | |
452 | rfi->pktslots[cur_idx] = pkt; | |
453 | rfi->pend_pkts++; | |
454 | ||
455 | /* got the expected one. flush from current to expected | |
456 | * and update expected | |
457 | */ | |
458 | brcmf_dbg(DATA, "flow-%d: expected %d (%d), pending %d\n", | |
459 | flow_id, cur_idx, exp_idx, rfi->pend_pkts); | |
460 | ||
461 | rfi->cur_idx = cur_idx; | |
462 | rfi->exp_idx = exp_idx; | |
463 | ||
464 | brcmf_rxreorder_get_skb_list(rfi, cur_idx, exp_idx, | |
465 | &reorder_list); | |
466 | brcmf_dbg(DATA, "flow-%d: freeing buffers %d, pending %d\n", | |
467 | flow_id, skb_queue_len(&reorder_list), | |
468 | rfi->pend_pkts); | |
469 | } else { | |
470 | u8 end_idx; | |
471 | ||
472 | brcmf_dbg(DATA, "flow-%d (0x%x): both moved, old %d/%d, new %d/%d\n", | |
473 | flow_id, flags, rfi->cur_idx, rfi->exp_idx, | |
474 | cur_idx, exp_idx); | |
475 | if (flags & BRCMF_RXREORDER_FLUSH_ALL) | |
476 | end_idx = rfi->exp_idx; | |
477 | else | |
478 | end_idx = exp_idx; | |
479 | ||
480 | /* flush pkts first */ | |
481 | brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, end_idx, | |
482 | &reorder_list); | |
483 | ||
484 | if (exp_idx == ((cur_idx + 1) % (rfi->max_idx + 1))) { | |
485 | __skb_queue_tail(&reorder_list, pkt); | |
486 | } else { | |
487 | rfi->pktslots[cur_idx] = pkt; | |
488 | rfi->pend_pkts++; | |
489 | } | |
490 | rfi->exp_idx = exp_idx; | |
491 | rfi->cur_idx = cur_idx; | |
492 | } | |
493 | } else { | |
494 | /* explicity window move updating the expected index */ | |
495 | exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET]; | |
496 | ||
497 | brcmf_dbg(DATA, "flow-%d (0x%x): change expected: %d -> %d\n", | |
498 | flow_id, flags, rfi->exp_idx, exp_idx); | |
499 | if (flags & BRCMF_RXREORDER_FLUSH_ALL) | |
500 | end_idx = rfi->exp_idx; | |
501 | else | |
502 | end_idx = exp_idx; | |
503 | ||
504 | brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, end_idx, | |
505 | &reorder_list); | |
506 | __skb_queue_tail(&reorder_list, pkt); | |
507 | /* set the new expected idx */ | |
508 | rfi->exp_idx = exp_idx; | |
509 | } | |
510 | netif_rx: | |
511 | skb_queue_walk_safe(&reorder_list, pkt, pnext) { | |
512 | __skb_unlink(pkt, &reorder_list); | |
513 | brcmf_netif_rx(ifp, pkt); | |
514 | } | |
515 | } | |
516 | ||
05f3820b | 517 | void brcmf_rx_frame(struct device *dev, struct sk_buff *skb) |
5b435de0 | 518 | { |
5b435de0 | 519 | struct brcmf_if *ifp; |
228bb43d FL |
520 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
521 | struct brcmf_pub *drvr = bus_if->drvr; | |
87edd891 | 522 | struct brcmf_skb_reorder_data *rd; |
a43af515 AS |
523 | u8 ifidx; |
524 | int ret; | |
5b435de0 | 525 | |
05f3820b | 526 | brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb); |
5b435de0 | 527 | |
05f3820b AS |
528 | /* process and remove protocol-specific header */ |
529 | ret = brcmf_proto_hdrpull(drvr, true, &ifidx, skb); | |
530 | ifp = drvr->iflist[ifidx]; | |
a43af515 | 531 | |
05f3820b AS |
532 | if (ret || !ifp || !ifp->ndev) { |
533 | if ((ret != -ENODATA) && ifp) | |
534 | ifp->stats.rx_errors++; | |
535 | brcmu_pkt_buf_free_skb(skb); | |
536 | return; | |
5b435de0 | 537 | } |
05f3820b AS |
538 | |
539 | rd = (struct brcmf_skb_reorder_data *)skb->cb; | |
540 | if (rd->reorder) | |
541 | brcmf_rxreorder_process_info(ifp, rd->reorder, skb); | |
542 | else | |
543 | brcmf_netif_rx(ifp, skb); | |
5b435de0 AS |
544 | } |
545 | ||
53e30ea4 | 546 | void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp, u8 ifidx, |
c7f34a69 | 547 | bool success) |
5b435de0 | 548 | { |
c7f34a69 | 549 | struct brcmf_if *ifp; |
5b435de0 AS |
550 | struct ethhdr *eh; |
551 | u16 type; | |
5b435de0 | 552 | |
b1a2a411 HM |
553 | ifp = drvr->iflist[ifidx]; |
554 | if (!ifp) | |
3edc1cff | 555 | goto done; |
b1a2a411 | 556 | |
53e30ea4 HM |
557 | eh = (struct ethhdr *)(txp->data); |
558 | type = ntohs(eh->h_proto); | |
5b435de0 | 559 | |
53e30ea4 HM |
560 | if (type == ETH_P_PAE) { |
561 | atomic_dec(&ifp->pend_8021x_cnt); | |
562 | if (waitqueue_active(&ifp->pend_8021x_wait)) | |
563 | wake_up(&ifp->pend_8021x_wait); | |
21fff75d | 564 | } |
53e30ea4 | 565 | |
b1a2a411 HM |
566 | if (!success) |
567 | ifp->stats.tx_errors++; | |
3edc1cff AS |
568 | done: |
569 | brcmu_pkt_buf_free_skb(txp); | |
c7f34a69 | 570 | } |
7f4bceec | 571 | |
c7f34a69 AS |
572 | void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success) |
573 | { | |
574 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
575 | struct brcmf_pub *drvr = bus_if->drvr; | |
53e30ea4 | 576 | u8 ifidx; |
c7f34a69 | 577 | |
0f8b5cc5 AS |
578 | /* await txstatus signal for firmware if active */ |
579 | if (brcmf_fws_fc_active(drvr->fws)) { | |
580 | if (!success) | |
581 | brcmf_fws_bustxfail(drvr->fws, txp); | |
582 | } else { | |
53e30ea4 HM |
583 | if (brcmf_proto_hdrpull(drvr, false, &ifidx, txp)) |
584 | brcmu_pkt_buf_free_skb(txp); | |
585 | else | |
586 | brcmf_txfinalize(drvr, txp, ifidx, success); | |
0f8b5cc5 | 587 | } |
5b435de0 AS |
588 | } |
589 | ||
590 | static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev) | |
591 | { | |
e1b83586 | 592 | struct brcmf_if *ifp = netdev_priv(ndev); |
5b435de0 | 593 | |
2880b868 | 594 | brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
5b435de0 AS |
595 | |
596 | return &ifp->stats; | |
597 | } | |
598 | ||
5b435de0 AS |
599 | static void brcmf_ethtool_get_drvinfo(struct net_device *ndev, |
600 | struct ethtool_drvinfo *info) | |
601 | { | |
e1b83586 | 602 | struct brcmf_if *ifp = netdev_priv(ndev); |
d08b6a37 | 603 | struct brcmf_pub *drvr = ifp->drvr; |
7f52c81d | 604 | char drev[BRCMU_DOTREV_LEN] = "n/a"; |
5b435de0 | 605 | |
7f52c81d AS |
606 | if (drvr->revinfo.result == 0) |
607 | brcmu_dotrev_str(drvr->revinfo.driverrev, drev); | |
7826d43f | 608 | strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); |
7f52c81d | 609 | strlcpy(info->version, drev, sizeof(info->version)); |
55685b8f | 610 | strlcpy(info->fw_version, drvr->fwver, sizeof(info->fw_version)); |
7826d43f JP |
611 | strlcpy(info->bus_info, dev_name(drvr->bus_if->dev), |
612 | sizeof(info->bus_info)); | |
5b435de0 AS |
613 | } |
614 | ||
3eb1fa7e SH |
615 | static const struct ethtool_ops brcmf_ethtool_ops = { |
616 | .get_drvinfo = brcmf_ethtool_get_drvinfo, | |
5b435de0 AS |
617 | }; |
618 | ||
5b435de0 AS |
619 | static int brcmf_netdev_stop(struct net_device *ndev) |
620 | { | |
e1b83586 | 621 | struct brcmf_if *ifp = netdev_priv(ndev); |
817b178c | 622 | |
2880b868 | 623 | brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
5b435de0 | 624 | |
bdf5ff51 | 625 | brcmf_cfg80211_down(ndev); |
817b178c | 626 | |
5b435de0 | 627 | /* Set state and stop OS transmissions */ |
5b435de0 AS |
628 | netif_stop_queue(ndev); |
629 | ||
630 | return 0; | |
631 | } | |
632 | ||
633 | static int brcmf_netdev_open(struct net_device *ndev) | |
634 | { | |
e1b83586 | 635 | struct brcmf_if *ifp = netdev_priv(ndev); |
d08b6a37 | 636 | struct brcmf_pub *drvr = ifp->drvr; |
1bb1f384 | 637 | struct brcmf_bus *bus_if = drvr->bus_if; |
5b435de0 | 638 | u32 toe_ol; |
5b435de0 | 639 | |
2880b868 | 640 | brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
5b435de0 | 641 | |
bdf5ff51 | 642 | /* If bus is not ready, can't continue */ |
a1cee865 | 643 | if (bus_if->state != BRCMF_BUS_UP) { |
5e8149f5 | 644 | brcmf_err("failed bus is not ready\n"); |
bdf5ff51 AS |
645 | return -EAGAIN; |
646 | } | |
1bb1f384 | 647 | |
10ef7321 | 648 | atomic_set(&ifp->pend_8021x_cnt, 0); |
5b435de0 | 649 | |
bdf5ff51 AS |
650 | /* Get current TOE mode from dongle */ |
651 | if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0 | |
652 | && (toe_ol & TOE_TX_CSUM_OL) != 0) | |
40a23296 | 653 | ndev->features |= NETIF_F_IP_CSUM; |
bdf5ff51 | 654 | else |
40a23296 | 655 | ndev->features &= ~NETIF_F_IP_CSUM; |
3338084a | 656 | |
bdf5ff51 | 657 | if (brcmf_cfg80211_up(ndev)) { |
5e8149f5 | 658 | brcmf_err("failed to bring up cfg80211\n"); |
dcede4b8 | 659 | return -EIO; |
5b435de0 AS |
660 | } |
661 | ||
dcede4b8 AS |
662 | /* Allow transmit calls */ |
663 | netif_start_queue(ndev); | |
664 | return 0; | |
5b435de0 AS |
665 | } |
666 | ||
dfded557 FL |
667 | static const struct net_device_ops brcmf_netdev_ops_pri = { |
668 | .ndo_open = brcmf_netdev_open, | |
669 | .ndo_stop = brcmf_netdev_stop, | |
670 | .ndo_get_stats = brcmf_netdev_get_stats, | |
dfded557 FL |
671 | .ndo_start_xmit = brcmf_netdev_start_xmit, |
672 | .ndo_set_mac_address = brcmf_netdev_set_mac_address, | |
673 | .ndo_set_rx_mode = brcmf_netdev_set_multicast_list | |
674 | }; | |
675 | ||
28c14f4a | 676 | int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked) |
75c49904 | 677 | { |
3625c149 | 678 | struct brcmf_pub *drvr = ifp->drvr; |
75c49904 | 679 | struct net_device *ndev; |
28c14f4a | 680 | s32 err; |
75c49904 | 681 | |
2880b868 | 682 | brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx, |
94889b1f | 683 | ifp->mac_addr); |
bdf5ff51 | 684 | ndev = ifp->ndev; |
75c49904 | 685 | |
bdf5ff51 | 686 | /* set appropriate operations */ |
2fde59d9 | 687 | ndev->netdev_ops = &brcmf_netdev_ops_pri; |
75c49904 | 688 | |
672774f1 | 689 | ndev->hard_header_len += drvr->hdrlen; |
75c49904 AS |
690 | ndev->ethtool_ops = &brcmf_ethtool_ops; |
691 | ||
692 | drvr->rxsz = ndev->mtu + ndev->hard_header_len + | |
693 | drvr->hdrlen; | |
694 | ||
0b63cb71 AS |
695 | /* set the mac address */ |
696 | memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN); | |
75c49904 | 697 | |
2fde59d9 HM |
698 | INIT_WORK(&ifp->setmacaddr_work, _brcmf_set_mac_address); |
699 | INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list); | |
700 | ||
28c14f4a HM |
701 | if (rtnl_locked) |
702 | err = register_netdevice(ndev); | |
703 | else | |
704 | err = register_netdev(ndev); | |
705 | if (err != 0) { | |
5e8149f5 | 706 | brcmf_err("couldn't register the net device\n"); |
75c49904 AS |
707 | goto fail; |
708 | } | |
709 | ||
710 | brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name); | |
711 | ||
9df4d542 | 712 | ndev->destructor = brcmf_cfg80211_free_netdev; |
75c49904 AS |
713 | return 0; |
714 | ||
715 | fail: | |
9390ace9 | 716 | drvr->iflist[ifp->bssidx] = NULL; |
75c49904 | 717 | ndev->netdev_ops = NULL; |
9390ace9 | 718 | free_netdev(ndev); |
75c49904 AS |
719 | return -EBADE; |
720 | } | |
721 | ||
2fde59d9 HM |
722 | static int brcmf_net_p2p_open(struct net_device *ndev) |
723 | { | |
724 | brcmf_dbg(TRACE, "Enter\n"); | |
725 | ||
726 | return brcmf_cfg80211_up(ndev); | |
727 | } | |
728 | ||
729 | static int brcmf_net_p2p_stop(struct net_device *ndev) | |
730 | { | |
731 | brcmf_dbg(TRACE, "Enter\n"); | |
732 | ||
733 | return brcmf_cfg80211_down(ndev); | |
734 | } | |
735 | ||
2fde59d9 HM |
736 | static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb, |
737 | struct net_device *ndev) | |
738 | { | |
739 | if (skb) | |
740 | dev_kfree_skb_any(skb); | |
741 | ||
742 | return NETDEV_TX_OK; | |
743 | } | |
744 | ||
745 | static const struct net_device_ops brcmf_netdev_ops_p2p = { | |
746 | .ndo_open = brcmf_net_p2p_open, | |
747 | .ndo_stop = brcmf_net_p2p_stop, | |
2fde59d9 HM |
748 | .ndo_start_xmit = brcmf_net_p2p_start_xmit |
749 | }; | |
750 | ||
751 | static int brcmf_net_p2p_attach(struct brcmf_if *ifp) | |
752 | { | |
753 | struct net_device *ndev; | |
754 | ||
755 | brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx, | |
756 | ifp->mac_addr); | |
757 | ndev = ifp->ndev; | |
758 | ||
759 | ndev->netdev_ops = &brcmf_netdev_ops_p2p; | |
760 | ||
761 | /* set the mac address */ | |
762 | memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN); | |
763 | ||
764 | if (register_netdev(ndev) != 0) { | |
765 | brcmf_err("couldn't register the p2p net device\n"); | |
766 | goto fail; | |
767 | } | |
768 | ||
769 | brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name); | |
770 | ||
771 | return 0; | |
772 | ||
773 | fail: | |
9390ace9 AS |
774 | ifp->drvr->iflist[ifp->bssidx] = NULL; |
775 | ndev->netdev_ops = NULL; | |
776 | free_netdev(ndev); | |
2fde59d9 HM |
777 | return -EBADE; |
778 | } | |
779 | ||
2880b868 HM |
780 | struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx, |
781 | char *name, u8 *mac_addr) | |
5b435de0 AS |
782 | { |
783 | struct brcmf_if *ifp; | |
e1b83586 | 784 | struct net_device *ndev; |
5b435de0 | 785 | |
2880b868 | 786 | brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifidx); |
5b435de0 | 787 | |
2880b868 | 788 | ifp = drvr->iflist[bssidx]; |
e1b83586 FL |
789 | /* |
790 | * Delete the existing interface before overwriting it | |
791 | * in case we missed the BRCMF_E_IF_DEL event. | |
792 | */ | |
793 | if (ifp) { | |
5e8149f5 | 794 | brcmf_err("ERROR: netdev:%s already exists\n", |
e1b83586 | 795 | ifp->ndev->name); |
b522dd80 AS |
796 | if (ifidx) { |
797 | netif_stop_queue(ifp->ndev); | |
798 | unregister_netdev(ifp->ndev); | |
799 | free_netdev(ifp->ndev); | |
2880b868 | 800 | drvr->iflist[bssidx] = NULL; |
b522dd80 | 801 | } else { |
5e8149f5 | 802 | brcmf_err("ignore IF event\n"); |
b522dd80 AS |
803 | return ERR_PTR(-EINVAL); |
804 | } | |
15d45b6f | 805 | } |
5b435de0 | 806 | |
01b8e7db AS |
807 | if (!brcmf_p2p_enable && bssidx == 1) { |
808 | /* this is P2P_DEVICE interface */ | |
809 | brcmf_dbg(INFO, "allocate non-netdev interface\n"); | |
810 | ifp = kzalloc(sizeof(*ifp), GFP_KERNEL); | |
991c2093 AS |
811 | if (!ifp) |
812 | return ERR_PTR(-ENOMEM); | |
01b8e7db AS |
813 | } else { |
814 | brcmf_dbg(INFO, "allocate netdev interface\n"); | |
815 | /* Allocate netdev, including space for private structure */ | |
c835a677 TG |
816 | ndev = alloc_netdev(sizeof(*ifp), name, NET_NAME_UNKNOWN, |
817 | ether_setup); | |
a652bf03 | 818 | if (!ndev) |
01b8e7db | 819 | return ERR_PTR(-ENOMEM); |
01b8e7db AS |
820 | |
821 | ifp = netdev_priv(ndev); | |
822 | ifp->ndev = ndev; | |
15d45b6f | 823 | } |
5b435de0 | 824 | |
d08b6a37 | 825 | ifp->drvr = drvr; |
2880b868 HM |
826 | drvr->iflist[bssidx] = ifp; |
827 | ifp->ifidx = ifidx; | |
1d4fd8d7 | 828 | ifp->bssidx = bssidx; |
bdf5ff51 | 829 | |
10ef7321 | 830 | init_waitqueue_head(&ifp->pend_8021x_wait); |
df50f756 | 831 | spin_lock_init(&ifp->netif_stop_lock); |
10ef7321 | 832 | |
2880b868 HM |
833 | if (mac_addr != NULL) |
834 | memcpy(ifp->mac_addr, mac_addr, ETH_ALEN); | |
5b435de0 | 835 | |
9bcb74f9 | 836 | brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n", |
01b8e7db | 837 | current->pid, name, ifp->mac_addr); |
5b435de0 | 838 | |
1ed9baf0 | 839 | return ifp; |
5b435de0 AS |
840 | } |
841 | ||
a44aa400 | 842 | static void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx) |
5b435de0 AS |
843 | { |
844 | struct brcmf_if *ifp; | |
845 | ||
2880b868 | 846 | ifp = drvr->iflist[bssidx]; |
cbb371da | 847 | drvr->iflist[bssidx] = NULL; |
5b435de0 | 848 | if (!ifp) { |
2880b868 | 849 | brcmf_err("Null interface, idx=%d\n", bssidx); |
5b435de0 AS |
850 | return; |
851 | } | |
2880b868 | 852 | brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifp->ifidx); |
dfded557 | 853 | if (ifp->ndev) { |
2880b868 | 854 | if (bssidx == 0) { |
dfded557 FL |
855 | if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) { |
856 | rtnl_lock(); | |
857 | brcmf_netdev_stop(ifp->ndev); | |
858 | rtnl_unlock(); | |
859 | } | |
860 | } else { | |
861 | netif_stop_queue(ifp->ndev); | |
862 | } | |
863 | ||
2fde59d9 HM |
864 | if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) { |
865 | cancel_work_sync(&ifp->setmacaddr_work); | |
866 | cancel_work_sync(&ifp->multicast_work); | |
867 | } | |
cbb371da | 868 | /* unregister will take care of freeing it */ |
5b435de0 | 869 | unregister_netdev(ifp->ndev); |
01b8e7db AS |
870 | } else { |
871 | kfree(ifp); | |
5b435de0 AS |
872 | } |
873 | } | |
874 | ||
a44aa400 HM |
875 | void brcmf_remove_interface(struct brcmf_pub *drvr, u32 bssidx) |
876 | { | |
877 | if (drvr->iflist[bssidx]) { | |
878 | brcmf_fws_del_interface(drvr->iflist[bssidx]); | |
879 | brcmf_del_if(drvr, bssidx); | |
880 | } | |
881 | } | |
882 | ||
883 | int brcmf_get_next_free_bsscfgidx(struct brcmf_pub *drvr) | |
884 | { | |
885 | int ifidx; | |
886 | int bsscfgidx; | |
887 | bool available; | |
888 | int highest; | |
889 | ||
890 | available = false; | |
891 | bsscfgidx = 2; | |
892 | highest = 2; | |
893 | for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) { | |
894 | if (drvr->iflist[ifidx]) { | |
895 | if (drvr->iflist[ifidx]->bssidx == bsscfgidx) | |
896 | bsscfgidx = highest + 1; | |
897 | else if (drvr->iflist[ifidx]->bssidx > highest) | |
898 | highest = drvr->iflist[ifidx]->bssidx; | |
899 | } else { | |
900 | available = true; | |
901 | } | |
902 | } | |
903 | ||
904 | return available ? bsscfgidx : -ENOMEM; | |
905 | } | |
906 | ||
8dee77ba | 907 | int brcmf_attach(struct device *dev) |
5b435de0 | 908 | { |
d08b6a37 | 909 | struct brcmf_pub *drvr = NULL; |
712ac5b3 | 910 | int ret = 0; |
5b435de0 AS |
911 | |
912 | brcmf_dbg(TRACE, "Enter\n"); | |
913 | ||
5b435de0 | 914 | /* Allocate primary brcmf_info */ |
d08b6a37 FL |
915 | drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC); |
916 | if (!drvr) | |
712ac5b3 | 917 | return -ENOMEM; |
5b435de0 | 918 | |
d08b6a37 | 919 | mutex_init(&drvr->proto_block); |
5b435de0 AS |
920 | |
921 | /* Link to bus module */ | |
8dee77ba | 922 | drvr->hdrlen = 0; |
d08b6a37 | 923 | drvr->bus_if = dev_get_drvdata(dev); |
55a63bcc | 924 | drvr->bus_if->drvr = drvr; |
5b435de0 | 925 | |
d319a7cf AS |
926 | /* create device debugfs folder */ |
927 | brcmf_debugfs_attach(drvr); | |
928 | ||
5b435de0 | 929 | /* Attach and link in the protocol */ |
712ac5b3 FL |
930 | ret = brcmf_proto_attach(drvr); |
931 | if (ret != 0) { | |
5e8149f5 | 932 | brcmf_err("brcmf_prot_attach failed\n"); |
5b435de0 AS |
933 | goto fail; |
934 | } | |
935 | ||
5c36b99a AS |
936 | /* attach firmware event handler */ |
937 | brcmf_fweh_attach(drvr); | |
938 | ||
712ac5b3 | 939 | return ret; |
5b435de0 AS |
940 | |
941 | fail: | |
712ac5b3 | 942 | brcmf_detach(dev); |
5b435de0 | 943 | |
712ac5b3 | 944 | return ret; |
5b435de0 AS |
945 | } |
946 | ||
ed683c98 | 947 | int brcmf_bus_start(struct device *dev) |
5b435de0 AS |
948 | { |
949 | int ret = -1; | |
ed683c98 FL |
950 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
951 | struct brcmf_pub *drvr = bus_if->drvr; | |
1ed9baf0 | 952 | struct brcmf_if *ifp; |
2fde59d9 | 953 | struct brcmf_if *p2p_ifp; |
5b435de0 AS |
954 | |
955 | brcmf_dbg(TRACE, "\n"); | |
956 | ||
1ed9baf0 | 957 | /* add primary networking interface */ |
699b5e5b | 958 | ifp = brcmf_add_if(drvr, 0, 0, "wlan%d", NULL); |
1ed9baf0 AS |
959 | if (IS_ERR(ifp)) |
960 | return PTR_ERR(ifp); | |
961 | ||
2fde59d9 HM |
962 | if (brcmf_p2p_enable) |
963 | p2p_ifp = brcmf_add_if(drvr, 1, 0, "p2p%d", NULL); | |
964 | else | |
965 | p2p_ifp = NULL; | |
966 | if (IS_ERR(p2p_ifp)) | |
967 | p2p_ifp = NULL; | |
968 | ||
0af29bf7 | 969 | /* signal bus ready */ |
a1cee865 | 970 | brcmf_bus_change_state(bus_if, BRCMF_BUS_UP); |
0af29bf7 HM |
971 | |
972 | /* Bus is ready, do any initialization */ | |
973 | ret = brcmf_c_preinit_dcmds(ifp); | |
5b435de0 | 974 | if (ret < 0) |
6b028c5e | 975 | goto fail; |
5b435de0 | 976 | |
9b1933a3 AS |
977 | /* assure we have chipid before feature attach */ |
978 | if (!bus_if->chip) { | |
48622903 AS |
979 | bus_if->chip = drvr->revinfo.chipnum; |
980 | bus_if->chiprev = drvr->revinfo.chiprev; | |
981 | brcmf_dbg(INFO, "firmware revinfo: chip %x (%d) rev %d\n", | |
982 | bus_if->chip, bus_if->chip, bus_if->chiprev); | |
9b1933a3 | 983 | } |
c08437b4 AS |
984 | brcmf_feat_attach(drvr); |
985 | ||
a786b38d AS |
986 | ret = brcmf_fws_init(drvr); |
987 | if (ret < 0) | |
988 | goto fail; | |
989 | ||
bb8c8063 | 990 | brcmf_fws_add_interface(ifp); |
349e7104 | 991 | |
d9cb2596 | 992 | drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev); |
6b028c5e HM |
993 | if (drvr->config == NULL) { |
994 | ret = -ENOMEM; | |
995 | goto fail; | |
996 | } | |
1ed9baf0 | 997 | |
5c36b99a AS |
998 | ret = brcmf_fweh_activate_events(ifp); |
999 | if (ret < 0) | |
1000 | goto fail; | |
1001 | ||
28c14f4a | 1002 | ret = brcmf_net_attach(ifp, false); |
6b028c5e | 1003 | fail: |
1ed9baf0 | 1004 | if (ret < 0) { |
5e8149f5 | 1005 | brcmf_err("failed: %d\n", ret); |
e1479951 | 1006 | brcmf_cfg80211_detach(drvr->config); |
bb8c8063 AS |
1007 | if (drvr->fws) { |
1008 | brcmf_fws_del_interface(ifp); | |
349e7104 | 1009 | brcmf_fws_deinit(drvr); |
bb8c8063 | 1010 | } |
ee06fcad AS |
1011 | if (drvr->iflist[0]) { |
1012 | free_netdev(ifp->ndev); | |
1013 | drvr->iflist[0] = NULL; | |
1014 | } | |
2fde59d9 HM |
1015 | if (p2p_ifp) { |
1016 | free_netdev(p2p_ifp->ndev); | |
1017 | drvr->iflist[1] = NULL; | |
1018 | } | |
474a64c8 | 1019 | return ret; |
1ed9baf0 | 1020 | } |
2fde59d9 | 1021 | if ((brcmf_p2p_enable) && (p2p_ifp)) |
9390ace9 AS |
1022 | if (brcmf_net_p2p_attach(p2p_ifp) < 0) |
1023 | brcmf_p2p_enable = 0; | |
1ed9baf0 | 1024 | |
5b435de0 AS |
1025 | return 0; |
1026 | } | |
1027 | ||
8dee77ba AS |
1028 | void brcmf_bus_add_txhdrlen(struct device *dev, uint len) |
1029 | { | |
1030 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1031 | struct brcmf_pub *drvr = bus_if->drvr; | |
1032 | ||
1033 | if (drvr) { | |
1034 | drvr->hdrlen += len; | |
1035 | } | |
1036 | } | |
1037 | ||
5b435de0 AS |
1038 | static void brcmf_bus_detach(struct brcmf_pub *drvr) |
1039 | { | |
5b435de0 AS |
1040 | brcmf_dbg(TRACE, "Enter\n"); |
1041 | ||
1042 | if (drvr) { | |
d08b6a37 | 1043 | /* Stop the bus module */ |
d9cb2596 | 1044 | brcmf_bus_stop(drvr->bus_if); |
5b435de0 AS |
1045 | } |
1046 | } | |
1047 | ||
81d5f1bb AS |
1048 | void brcmf_dev_reset(struct device *dev) |
1049 | { | |
1050 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1051 | struct brcmf_pub *drvr = bus_if->drvr; | |
1052 | ||
1053 | if (drvr == NULL) | |
1054 | return; | |
1055 | ||
643ecaab HM |
1056 | if (drvr->iflist[0]) |
1057 | brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1); | |
81d5f1bb AS |
1058 | } |
1059 | ||
5f947ad9 | 1060 | void brcmf_detach(struct device *dev) |
5b435de0 | 1061 | { |
2880b868 | 1062 | s32 i; |
5f947ad9 FL |
1063 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
1064 | struct brcmf_pub *drvr = bus_if->drvr; | |
5b435de0 AS |
1065 | |
1066 | brcmf_dbg(TRACE, "Enter\n"); | |
1067 | ||
817b178c HM |
1068 | if (drvr == NULL) |
1069 | return; | |
5b435de0 | 1070 | |
5c36b99a AS |
1071 | /* stop firmware event handling */ |
1072 | brcmf_fweh_detach(drvr); | |
1073 | ||
bb350711 AS |
1074 | brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN); |
1075 | ||
5f947ad9 FL |
1076 | /* make sure primary interface removed last */ |
1077 | for (i = BRCMF_MAX_IFS-1; i > -1; i--) | |
a44aa400 | 1078 | brcmf_remove_interface(drvr, i); |
5b435de0 | 1079 | |
e1479951 AS |
1080 | brcmf_cfg80211_detach(drvr->config); |
1081 | ||
05c2c767 HM |
1082 | brcmf_fws_deinit(drvr); |
1083 | ||
5f947ad9 | 1084 | brcmf_bus_detach(drvr); |
5b435de0 | 1085 | |
85b84133 | 1086 | brcmf_proto_detach(drvr); |
5b435de0 | 1087 | |
d319a7cf | 1088 | brcmf_debugfs_detach(drvr); |
5f947ad9 FL |
1089 | bus_if->drvr = NULL; |
1090 | kfree(drvr); | |
5b435de0 AS |
1091 | } |
1092 | ||
cf458287 AS |
1093 | s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len) |
1094 | { | |
1095 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1096 | struct brcmf_if *ifp = bus_if->drvr->iflist[0]; | |
1097 | ||
1098 | return brcmf_fil_iovar_data_set(ifp, name, data, len); | |
1099 | } | |
1100 | ||
10ef7321 | 1101 | static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp) |
5b435de0 | 1102 | { |
10ef7321 | 1103 | return atomic_read(&ifp->pend_8021x_cnt); |
5b435de0 AS |
1104 | } |
1105 | ||
118eb304 | 1106 | int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp) |
5b435de0 | 1107 | { |
21fff75d HM |
1108 | int err; |
1109 | ||
10ef7321 HM |
1110 | err = wait_event_timeout(ifp->pend_8021x_wait, |
1111 | !brcmf_get_pend_8021x_cnt(ifp), | |
21fff75d HM |
1112 | msecs_to_jiffies(MAX_WAIT_FOR_8021X_TX)); |
1113 | ||
1114 | WARN_ON(!err); | |
1115 | ||
1116 | return !err; | |
5b435de0 AS |
1117 | } |
1118 | ||
649f38ae HM |
1119 | void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state) |
1120 | { | |
1121 | struct brcmf_pub *drvr = bus->drvr; | |
1122 | struct net_device *ndev; | |
1123 | int ifidx; | |
1124 | ||
1125 | brcmf_dbg(TRACE, "%d -> %d\n", bus->state, state); | |
1126 | bus->state = state; | |
1127 | ||
1128 | if (state == BRCMF_BUS_UP) { | |
1129 | for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) { | |
1130 | if ((drvr->iflist[ifidx]) && | |
1131 | (drvr->iflist[ifidx]->ndev)) { | |
1132 | ndev = drvr->iflist[ifidx]->ndev; | |
1133 | if (netif_queue_stopped(ndev)) | |
1134 | netif_wake_queue(ndev); | |
1135 | } | |
1136 | } | |
1137 | } | |
1138 | } | |
1139 | ||
db4efbbe | 1140 | static void brcmf_driver_register(struct work_struct *work) |
f3d7cdc3 | 1141 | { |
f3d7cdc3 | 1142 | #ifdef CONFIG_BRCMFMAC_SDIO |
db4efbbe | 1143 | brcmf_sdio_register(); |
f3d7cdc3 | 1144 | #endif |
71bb244b | 1145 | #ifdef CONFIG_BRCMFMAC_USB |
db4efbbe | 1146 | brcmf_usb_register(); |
71bb244b | 1147 | #endif |
9e37f045 HM |
1148 | #ifdef CONFIG_BRCMFMAC_PCIE |
1149 | brcmf_pcie_register(); | |
1150 | #endif | |
e64a4b70 | 1151 | } |
db4efbbe | 1152 | static DECLARE_WORK(brcmf_driver_work, brcmf_driver_register); |
e64a4b70 AS |
1153 | |
1154 | static int __init brcmfmac_module_init(void) | |
1155 | { | |
db4efbbe AS |
1156 | brcmf_debugfs_init(); |
1157 | #ifdef CONFIG_BRCMFMAC_SDIO | |
1158 | brcmf_sdio_init(); | |
1159 | #endif | |
e64a4b70 AS |
1160 | if (!schedule_work(&brcmf_driver_work)) |
1161 | return -EBUSY; | |
1162 | ||
549040ab | 1163 | return 0; |
f3d7cdc3 AS |
1164 | } |
1165 | ||
e64a4b70 | 1166 | static void __exit brcmfmac_module_exit(void) |
f3d7cdc3 | 1167 | { |
e64a4b70 AS |
1168 | cancel_work_sync(&brcmf_driver_work); |
1169 | ||
f3d7cdc3 AS |
1170 | #ifdef CONFIG_BRCMFMAC_SDIO |
1171 | brcmf_sdio_exit(); | |
1172 | #endif | |
71bb244b AS |
1173 | #ifdef CONFIG_BRCMFMAC_USB |
1174 | brcmf_usb_exit(); | |
9e37f045 HM |
1175 | #endif |
1176 | #ifdef CONFIG_BRCMFMAC_PCIE | |
1177 | brcmf_pcie_exit(); | |
71bb244b | 1178 | #endif |
d319a7cf | 1179 | brcmf_debugfs_exit(); |
f3d7cdc3 AS |
1180 | } |
1181 | ||
e64a4b70 AS |
1182 | module_init(brcmfmac_module_init); |
1183 | module_exit(brcmfmac_module_exit); |