---

yaml
---
r: 247096
b: refs/heads/master
c: ae47c45
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ae77eccf04f8c36769bdba334e1bbcc7bb9d3644
+refs/heads/master: ae47c45fd02fdf88d57adc370e78e7a01e2bfcbc

trunk/drivers/net/wireless/wl12xx/boot.c

@@ -482,6 +482,8 @@ static int wl1271_boot_run_firmware(struct wl1271 *wl)
 
 	if (wl->bss_type == BSS_TYPE_AP_BSS)
 		wl->event_mask |= STA_REMOVE_COMPLETE_EVENT_ID;
+	else
+		wl->event_mask |= DUMMY_PACKET_EVENT_ID;
 
 	ret = wl1271_event_unmask(wl);
 	if (ret < 0) {

trunk/drivers/net/wireless/wl12xx/event.c

@@ -228,6 +228,12 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
 			wl1271_event_rssi_trigger(wl, mbox);
 	}
 
+	if ((vector & DUMMY_PACKET_EVENT_ID) && !is_ap) {
+		wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
+		if (wl->vif)
+			wl1271_tx_dummy_packet(wl);
+	}
+
 	if (wl->vif && beacon_loss)
 		ieee80211_connection_loss(wl->vif);
 

trunk/drivers/net/wireless/wl12xx/event.h

@@ -59,7 +59,10 @@ enum {
 	BSS_LOSE_EVENT_ID			 = BIT(18),
 	REGAINED_BSS_EVENT_ID			 = BIT(19),
 	ROAMING_TRIGGER_MAX_TX_RETRY_EVENT_ID	 = BIT(20),
-	STA_REMOVE_COMPLETE_EVENT_ID		 = BIT(21), /* AP */
+	/* STA: dummy paket for dynamic mem blocks */
+	DUMMY_PACKET_EVENT_ID                    = BIT(21),
+	/* AP: STA remove complete */
+	STA_REMOVE_COMPLETE_EVENT_ID             = BIT(21),
 	SOFT_GEMINI_SENSE_EVENT_ID		 = BIT(22),
 	SOFT_GEMINI_PREDICTION_EVENT_ID		 = BIT(23),
 	SOFT_GEMINI_AVALANCHE_EVENT_ID		 = BIT(24),

trunk/drivers/net/wireless/wl12xx/io.h

@@ -170,5 +170,6 @@ struct ieee80211_hw *wl1271_alloc_hw(void);
 int wl1271_free_hw(struct wl1271 *wl);
 irqreturn_t wl1271_irq(int irq, void *data);
 bool wl1271_set_block_size(struct wl1271 *wl);
+int wl1271_tx_dummy_packet(struct wl1271 *wl);
 
 #endif

trunk/drivers/net/wireless/wl12xx/main.c

@@ -1174,6 +1174,48 @@ static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	spin_unlock_irqrestore(&wl->wl_lock, flags);
 }
 
+#define TX_DUMMY_PACKET_SIZE 1400
+int wl1271_tx_dummy_packet(struct wl1271 *wl)
+{
+	struct sk_buff *skb = NULL;
+	struct ieee80211_hdr_3addr *hdr;
+	int ret = 0;
+
+	skb = dev_alloc_skb(
+		sizeof(struct wl1271_tx_hw_descr) + sizeof(*hdr) +
+		TX_DUMMY_PACKET_SIZE);
+	if (!skb) {
+		wl1271_warning("failed to allocate buffer for dummy packet");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
+
+	hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
+	memset(hdr, 0, sizeof(*hdr));
+	hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
+					 IEEE80211_FCTL_TODS  |
+					 IEEE80211_STYPE_NULLFUNC);
+
+	memcpy(hdr->addr1, wl->bssid, ETH_ALEN);
+	memcpy(hdr->addr2, wl->mac_addr, ETH_ALEN);
+	memcpy(hdr->addr3, wl->bssid, ETH_ALEN);
+
+	skb_put(skb, TX_DUMMY_PACKET_SIZE);
+
+	memset(skb->data, 0, TX_DUMMY_PACKET_SIZE);
+
+	skb->pkt_type = TX_PKT_TYPE_DUMMY_REQ;
+	/* CONF_TX_AC_VO */
+	skb->queue_mapping = 0;
+
+	wl1271_op_tx(wl->hw, skb);
+
+out:
+	return ret;
+}
+
 static struct notifier_block wl1271_dev_notifier = {
 	.notifier_call = wl1271_dev_notify,
 };

trunk/drivers/net/wireless/wl12xx/tx.c

@@ -215,13 +215,29 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
 	else
 		desc->life_time = cpu_to_le16(TX_HW_AP_MODE_PKT_LIFETIME_TU);
 
-	/* configure the tx attributes */
-	tx_attr = wl->session_counter << TX_HW_ATTR_OFST_SESSION_COUNTER;
-
 	/* queue (we use same identifiers for tid's and ac's */
 	ac = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
 	desc->tid = ac;
 
+	if (skb->pkt_type == TX_PKT_TYPE_DUMMY_REQ) {
+		/*
+		 * FW expects the dummy packet to have an invalid session id -
+		 * any session id that is different than the one set in the join
+		 */
+		tx_attr = ((~wl->session_counter) <<
+			   TX_HW_ATTR_OFST_SESSION_COUNTER) &
+			   TX_HW_ATTR_SESSION_COUNTER;
+
+		tx_attr |= TX_HW_ATTR_TX_DUMMY_REQ;
+
+		/* Dummy packets require the TID to be management */
+		desc->tid = WL1271_TID_MGMT;
+	} else {
+		/* configure the tx attributes */
+		tx_attr =
+			wl->session_counter << TX_HW_ATTR_OFST_SESSION_COUNTER;
+	}
+
 	if (wl->bss_type != BSS_TYPE_AP_BSS) {
 		desc->aid = hlid;
 
@@ -587,6 +603,12 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
 	skb = wl->tx_frames[id];
 	info = IEEE80211_SKB_CB(skb);
 
+	if (skb->pkt_type == TX_PKT_TYPE_DUMMY_REQ) {
+		dev_kfree_skb(skb);
+		wl1271_free_tx_id(wl, id);
+		return;
+	}
+
 	/* update the TX status info */
 	if (result->status == TX_SUCCESS) {
 		if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
@@ -716,10 +738,15 @@ void wl1271_tx_reset(struct wl1271 *wl)
 			while ((skb = skb_dequeue(&wl->tx_queue[i]))) {
 				wl1271_debug(DEBUG_TX, "freeing skb 0x%p",
 					     skb);
-				info = IEEE80211_SKB_CB(skb);
-				info->status.rates[0].idx = -1;
-				info->status.rates[0].count = 0;
-				ieee80211_tx_status(wl->hw, skb);
+
+				if (skb->pkt_type == TX_PKT_TYPE_DUMMY_REQ) {
+					dev_kfree_skb(skb);
+				} else {
+					info = IEEE80211_SKB_CB(skb);
+					info->status.rates[0].idx = -1;
+					info->status.rates[0].count = 0;
+					ieee80211_tx_status(wl->hw, skb);
+				}
 			}
 		}
 	}
@@ -740,21 +767,29 @@ void wl1271_tx_reset(struct wl1271 *wl)
 		wl1271_free_tx_id(wl, i);
 		wl1271_debug(DEBUG_TX, "freeing skb 0x%p", skb);
 
-		/* Remove private headers before passing the skb to mac80211 */
-		info = IEEE80211_SKB_CB(skb);
-		skb_pull(skb, sizeof(struct wl1271_tx_hw_descr));
-		if (info->control.hw_key &&
-		    info->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP) {
-			int hdrlen = ieee80211_get_hdrlen_from_skb(skb);
-			memmove(skb->data + WL1271_TKIP_IV_SPACE, skb->data,
-				hdrlen);
-			skb_pull(skb, WL1271_TKIP_IV_SPACE);
-		}
+		if (skb->pkt_type == TX_PKT_TYPE_DUMMY_REQ) {
+			dev_kfree_skb(skb);
+		} else {
+			/*
+			 * Remove private headers before passing the skb to
+			 * mac80211
+			 */
+			info = IEEE80211_SKB_CB(skb);
+			skb_pull(skb, sizeof(struct wl1271_tx_hw_descr));
+			if (info->control.hw_key &&
+			    info->control.hw_key->cipher ==
+			    WLAN_CIPHER_SUITE_TKIP) {
+				int hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+				memmove(skb->data + WL1271_TKIP_IV_SPACE,
+					skb->data, hdrlen);
+				skb_pull(skb, WL1271_TKIP_IV_SPACE);
+			}
 
-		info->status.rates[0].idx = -1;
-		info->status.rates[0].count = 0;
+			info->status.rates[0].idx = -1;
+			info->status.rates[0].count = 0;
 
-		ieee80211_tx_status(wl->hw, skb);
+			ieee80211_tx_status(wl->hw, skb);
+		}
 	}
 }
 

trunk/drivers/net/wireless/wl12xx/tx.h

@@ -41,6 +41,9 @@
 					  BIT(8) | BIT(9))
 #define TX_HW_ATTR_LAST_WORD_PAD         (BIT(10) | BIT(11))
 #define TX_HW_ATTR_TX_CMPLT_REQ          BIT(12)
+#define TX_HW_ATTR_TX_DUMMY_REQ          BIT(13)
+
+#define TX_PKT_TYPE_DUMMY_REQ            5
 
 #define TX_HW_ATTR_OFST_SAVE_RETRIES     0
 #define TX_HW_ATTR_OFST_HEADER_PAD       1
@@ -55,6 +58,9 @@
 #define WL1271_TX_ALIGN_TO 4
 #define WL1271_TKIP_IV_SPACE 4
 
+/* Used for management frames and dummy packets */
+#define WL1271_TID_MGMT 7
+
 struct wl127x_tx_mem {
 	/*
 	 * Number of extra memory blocks to allocate for this packet