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2023-12-06 08f87f769b595151be1afeff53e144f543faa614 
 kernel/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c
....@@ -1,10 +1,10 @@
11 /*
2
- * Marvell Wireless LAN device driver: 802.11n RX Re-ordering
2
+ * NXP Wireless LAN device driver: 802.11n RX Re-ordering
33  *
4
- * Copyright (C) 2011-2014, Marvell International Ltd.
4
+ * Copyright 2011-2020 NXP
55  *
6
- * This software file (the "File") is distributed by Marvell International
7
- * Ltd. under the terms of the GNU General Public License Version 2, June 1991
6
+ * This software file (the "File") is distributed by NXP
7
+ * under the terms of the GNU General Public License Version 2, June 1991
88  * (the "License").  You may use, redistribute and/or modify this File in
99  * accordance with the terms and conditions of the License, a copy of which
1010  * is available by writing to the Free Software Foundation, Inc.,
....@@ -76,7 +76,8 @@
7676 /* This function will process the rx packet and forward it to kernel/upper
7777  * layer.
7878  */
79
-static int mwifiex_11n_dispatch_pkt(struct mwifiex_private *priv, void *payload)
79
+static int mwifiex_11n_dispatch_pkt(struct mwifiex_private *priv,
80
+				    struct sk_buff *payload)
8081 {
8182 
8283 	int ret;
....@@ -109,27 +110,25 @@
109110 					 struct mwifiex_rx_reorder_tbl *tbl,
110111 					 int start_win)
111112 {
113
+	struct sk_buff_head list;
114
+	struct sk_buff *skb;
112115 	int pkt_to_send, i;
113
-	void *rx_tmp_ptr;
114
-	unsigned long flags;
116
+
117
+	__skb_queue_head_init(&list);
118
+	spin_lock_bh(&priv->rx_reorder_tbl_lock);
115119 
116120 	pkt_to_send = (start_win > tbl->start_win) ?
117121 		      min((start_win - tbl->start_win), tbl->win_size) :
118122 		      tbl->win_size;
119123 
120124 	for (i = 0; i < pkt_to_send; ++i) {
121
-		spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
122
-		rx_tmp_ptr = NULL;
123125 		if (tbl->rx_reorder_ptr[i]) {
124
-			rx_tmp_ptr = tbl->rx_reorder_ptr[i];
126
+			skb = tbl->rx_reorder_ptr[i];
127
+			__skb_queue_tail(&list, skb);
125128 			tbl->rx_reorder_ptr[i] = NULL;
126129 		}
127
-		spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
128
-		if (rx_tmp_ptr)
129
-			mwifiex_11n_dispatch_pkt(priv, rx_tmp_ptr);
130130 	}
131131 
132
-	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
133132 	/*
134133 	 * We don't have a circular buffer, hence use rotation to simulate
135134 	 * circular buffer
....@@ -140,7 +139,10 @@
140139 	}
141140 
142141 	tbl->start_win = start_win;
143
-	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
142
+	spin_unlock_bh(&priv->rx_reorder_tbl_lock);
143
+
144
+	while ((skb = __skb_dequeue(&list)))
145
+		mwifiex_11n_dispatch_pkt(priv, skb);
144146 }
145147 
146148 /*
....@@ -155,24 +157,21 @@
155157 mwifiex_11n_scan_and_dispatch(struct mwifiex_private *priv,
156158 			      struct mwifiex_rx_reorder_tbl *tbl)
157159 {
160
+	struct sk_buff_head list;
161
+	struct sk_buff *skb;
158162 	int i, j, xchg;
159
-	void *rx_tmp_ptr;
160
-	unsigned long flags;
163
+
164
+	__skb_queue_head_init(&list);
165
+	spin_lock_bh(&priv->rx_reorder_tbl_lock);
161166 
162167 	for (i = 0; i < tbl->win_size; ++i) {
163
-		spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
164
-		if (!tbl->rx_reorder_ptr[i]) {
165
-			spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock,
166
-					       flags);
168
+		if (!tbl->rx_reorder_ptr[i])
167169 			break;
168
-		}
169
-		rx_tmp_ptr = tbl->rx_reorder_ptr[i];
170
+		skb = tbl->rx_reorder_ptr[i];
171
+		__skb_queue_tail(&list, skb);
170172 		tbl->rx_reorder_ptr[i] = NULL;
171
-		spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
172
-		mwifiex_11n_dispatch_pkt(priv, rx_tmp_ptr);
173173 	}
174174 
175
-	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
176175 	/*
177176 	 * We don't have a circular buffer, hence use rotation to simulate
178177 	 * circular buffer
....@@ -185,7 +184,11 @@
185184 		}
186185 	}
187186 	tbl->start_win = (tbl->start_win + i) & (MAX_TID_VALUE - 1);
188
-	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
187
+
188
+	spin_unlock_bh(&priv->rx_reorder_tbl_lock);
189
+
190
+	while ((skb = __skb_dequeue(&list)))
191
+		mwifiex_11n_dispatch_pkt(priv, skb);
189192 }
190193 
191194 /*
....@@ -198,19 +201,18 @@
198201 mwifiex_del_rx_reorder_entry(struct mwifiex_private *priv,
199202 			     struct mwifiex_rx_reorder_tbl *tbl)
200203 {
201
-	unsigned long flags;
202204 	int start_win;
203205 
204206 	if (!tbl)
205207 		return;
206208 
207
-	spin_lock_irqsave(&priv->adapter->rx_proc_lock, flags);
209
+	spin_lock_bh(&priv->adapter->rx_proc_lock);
208210 	priv->adapter->rx_locked = true;
209211 	if (priv->adapter->rx_processing) {
210
-		spin_unlock_irqrestore(&priv->adapter->rx_proc_lock, flags);
212
+		spin_unlock_bh(&priv->adapter->rx_proc_lock);
211213 		flush_workqueue(priv->adapter->rx_workqueue);
212214 	} else {
213
-		spin_unlock_irqrestore(&priv->adapter->rx_proc_lock, flags);
215
+		spin_unlock_bh(&priv->adapter->rx_proc_lock);
214216 	}
215217 
216218 	start_win = (tbl->start_win + tbl->win_size) & (MAX_TID_VALUE - 1);
....@@ -219,16 +221,16 @@
219221 	del_timer_sync(&tbl->timer_context.timer);
220222 	tbl->timer_context.timer_is_set = false;
221223 
222
-	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
224
+	spin_lock_bh(&priv->rx_reorder_tbl_lock);
223225 	list_del(&tbl->list);
224
-	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
226
+	spin_unlock_bh(&priv->rx_reorder_tbl_lock);
225227 
226228 	kfree(tbl->rx_reorder_ptr);
227229 	kfree(tbl);
228230 
229
-	spin_lock_irqsave(&priv->adapter->rx_proc_lock, flags);
231
+	spin_lock_bh(&priv->adapter->rx_proc_lock);
230232 	priv->adapter->rx_locked = false;
231
-	spin_unlock_irqrestore(&priv->adapter->rx_proc_lock, flags);
233
+	spin_unlock_bh(&priv->adapter->rx_proc_lock);
232234 
233235 }
234236 
....@@ -240,17 +242,15 @@
240242 mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta)
241243 {
242244 	struct mwifiex_rx_reorder_tbl *tbl;
243
-	unsigned long flags;
244245 
245
-	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
246
+	spin_lock_bh(&priv->rx_reorder_tbl_lock);
246247 	list_for_each_entry(tbl, &priv->rx_reorder_tbl_ptr, list) {
247248 		if (!memcmp(tbl->ta, ta, ETH_ALEN) && tbl->tid == tid) {
248
-			spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock,
249
-					       flags);
249
+			spin_unlock_bh(&priv->rx_reorder_tbl_lock);
250250 			return tbl;
251251 		}
252252 	}
253
-	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
253
+	spin_unlock_bh(&priv->rx_reorder_tbl_lock);
254254 
255255 	return NULL;
256256 }
....@@ -261,21 +261,19 @@
261261 void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta)
262262 {
263263 	struct mwifiex_rx_reorder_tbl *tbl, *tmp;
264
-	unsigned long flags;
265264 
266265 	if (!ta)
267266 		return;
268267 
269
-	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
268
+	spin_lock_bh(&priv->rx_reorder_tbl_lock);
270269 	list_for_each_entry_safe(tbl, tmp, &priv->rx_reorder_tbl_ptr, list) {
271270 		if (!memcmp(tbl->ta, ta, ETH_ALEN)) {
272
-			spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock,
273
-					       flags);
271
+			spin_unlock_bh(&priv->rx_reorder_tbl_lock);
274272 			mwifiex_del_rx_reorder_entry(priv, tbl);
275
-			spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
273
+			spin_lock_bh(&priv->rx_reorder_tbl_lock);
276274 		}
277275 	}
278
-	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
276
+	spin_unlock_bh(&priv->rx_reorder_tbl_lock);
279277 
280278 	return;
281279 }
....@@ -289,18 +287,16 @@
289287 {
290288 	struct mwifiex_rx_reorder_tbl *rx_reorder_tbl_ptr = ctx->ptr;
291289 	struct mwifiex_private *priv = ctx->priv;
292
-	unsigned long flags;
293290 	int i;
294291 
295
-	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
292
+	spin_lock_bh(&priv->rx_reorder_tbl_lock);
296293 	for (i = rx_reorder_tbl_ptr->win_size - 1; i >= 0; --i) {
297294 		if (rx_reorder_tbl_ptr->rx_reorder_ptr[i]) {
298
-			spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock,
299
-					       flags);
295
+			spin_unlock_bh(&priv->rx_reorder_tbl_lock);
300296 			return i;
301297 		}
302298 	}
303
-	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
299
+	spin_unlock_bh(&priv->rx_reorder_tbl_lock);
304300 
305301 	return -1;
306302 }
....@@ -348,7 +344,6 @@
348344 	int i;
349345 	struct mwifiex_rx_reorder_tbl *tbl, *new_node;
350346 	u16 last_seq = 0;
351
-	unsigned long flags;
352347 	struct mwifiex_sta_node *node;
353348 
354349 	/*
....@@ -372,7 +367,7 @@
372367 	new_node->init_win = seq_num;
373368 	new_node->flags = 0;
374369 
375
-	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
370
+	spin_lock_bh(&priv->sta_list_spinlock);
376371 	if (mwifiex_queuing_ra_based(priv)) {
377372 		if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) {
378373 			node = mwifiex_get_sta_entry(priv, ta);
....@@ -386,7 +381,7 @@
386381 		else
387382 			last_seq = priv->rx_seq[tid];
388383 	}
389
-	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
384
+	spin_unlock_bh(&priv->sta_list_spinlock);
390385 
391386 	mwifiex_dbg(priv->adapter, INFO,
392387 		    "info: last_seq=%d start_win=%d\n",
....@@ -403,7 +398,7 @@
403398 	new_node->rx_reorder_ptr = kcalloc(win_size, sizeof(void *),
404399 					   GFP_KERNEL);
405400 	if (!new_node->rx_reorder_ptr) {
406
-		kfree((u8 *) new_node);
401
+		kfree(new_node);
407402 		mwifiex_dbg(priv->adapter, ERROR,
408403 			    "%s: failed to alloc reorder_ptr\n", __func__);
409404 		return;
....@@ -418,9 +413,9 @@
418413 	for (i = 0; i < win_size; ++i)
419414 		new_node->rx_reorder_ptr[i] = NULL;
420415 
421
-	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
416
+	spin_lock_bh(&priv->rx_reorder_tbl_lock);
422417 	list_add_tail(&new_node->list, &priv->rx_reorder_tbl_ptr);
423
-	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
418
+	spin_unlock_bh(&priv->rx_reorder_tbl_lock);
424419 }
425420 
426421 static void
....@@ -476,18 +471,17 @@
476471 	u32 rx_win_size = priv->add_ba_param.rx_win_size;
477472 	u8 tid;
478473 	int win_size;
479
-	unsigned long flags;
480474 	uint16_t block_ack_param_set;
481475 
482476 	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
483477 	    ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
484478 	    priv->adapter->is_hw_11ac_capable &&
485479 	    memcmp(priv->cfg_bssid, cmd_addba_req->peer_mac_addr, ETH_ALEN)) {
486
-		spin_lock_irqsave(&priv->sta_list_spinlock, flags);
480
+		spin_lock_bh(&priv->sta_list_spinlock);
487481 		sta_ptr = mwifiex_get_sta_entry(priv,
488482 						cmd_addba_req->peer_mac_addr);
489483 		if (!sta_ptr) {
490
-			spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
484
+			spin_unlock_bh(&priv->sta_list_spinlock);
491485 			mwifiex_dbg(priv->adapter, ERROR,
492486 				    "BA setup with unknown TDLS peer %pM!\n",
493487 				    cmd_addba_req->peer_mac_addr);
....@@ -495,7 +489,7 @@
495489 		}
496490 		if (sta_ptr->is_11ac_enabled)
497491 			rx_win_size = MWIFIEX_11AC_STA_AMPDU_DEF_RXWINSIZE;
498
-		spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
492
+		spin_unlock_bh(&priv->sta_list_spinlock);
499493 	}
500494 
501495 	cmd->command = cpu_to_le16(HostCmd_CMD_11N_ADDBA_RSP);
....@@ -682,7 +676,6 @@
682676 	struct mwifiex_tx_ba_stream_tbl *ptx_tbl;
683677 	struct mwifiex_ra_list_tbl *ra_list;
684678 	u8 cleanup_rx_reorder_tbl;
685
-	unsigned long flags;
686679 	int tid_down;
687680 
688681 	if (type == TYPE_DELBA_RECEIVE)
....@@ -716,9 +709,9 @@
716709 			ra_list->amsdu_in_ampdu = false;
717710 			ra_list->ba_status = BA_SETUP_NONE;
718711 		}
719
-		spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
712
+		spin_lock_bh(&priv->tx_ba_stream_tbl_lock);
720713 		mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, ptx_tbl);
721
-		spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
714
+		spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
722715 	}
723716 }
724717 
....@@ -804,17 +797,16 @@
804797 void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv)
805798 {
806799 	struct mwifiex_rx_reorder_tbl *del_tbl_ptr, *tmp_node;
807
-	unsigned long flags;
808800 
809
-	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
801
+	spin_lock_bh(&priv->rx_reorder_tbl_lock);
810802 	list_for_each_entry_safe(del_tbl_ptr, tmp_node,
811803 				 &priv->rx_reorder_tbl_ptr, list) {
812
-		spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
804
+		spin_unlock_bh(&priv->rx_reorder_tbl_lock);
813805 		mwifiex_del_rx_reorder_entry(priv, del_tbl_ptr);
814
-		spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
806
+		spin_lock_bh(&priv->rx_reorder_tbl_lock);
815807 	}
816808 	INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr);
817
-	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
809
+	spin_unlock_bh(&priv->rx_reorder_tbl_lock);
818810 
819811 	mwifiex_reset_11n_rx_seq_num(priv);
820812 }
....@@ -826,7 +818,6 @@
826818 {
827819 	struct mwifiex_private *priv;
828820 	struct mwifiex_rx_reorder_tbl *tbl;
829
-	unsigned long lock_flags;
830821 	int i;
831822 
832823 	for (i = 0; i < adapter->priv_num; i++) {
....@@ -834,10 +825,10 @@
834825 		if (!priv)
835826 			continue;
836827 
837
-		spin_lock_irqsave(&priv->rx_reorder_tbl_lock, lock_flags);
828
+		spin_lock_bh(&priv->rx_reorder_tbl_lock);
838829 		list_for_each_entry(tbl, &priv->rx_reorder_tbl_ptr, list)
839830 			tbl->flags = flags;
840
-		spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, lock_flags);
831
+		spin_unlock_bh(&priv->rx_reorder_tbl_lock);
841832 	}
842833 
843834 	return;