wl12xx: update rx/tx

Update the rx/tx descriptors according to the new fw api
(fw >= 6/7.3.0.0.75)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/wl12xx/rx.h

@@ -86,7 +86,7 @@
  * Bits 3-5 - process_id tag (AP mode FW)
  * Bits 6-7 - reserved
  */
-#define WL1271_RX_DESC_STATUS_MASK      0x07
+#define WL1271_RX_DESC_STATUS_MASK      0x03
 
 #define WL1271_RX_DESC_SUCCESS          0x00
 #define WL1271_RX_DESC_DECRYPT_FAIL     0x01
@@ -121,10 +121,7 @@ struct wl1271_rx_descriptor {
 	u8  snr;
 	__le32 timestamp;
 	u8  packet_class;
-	union {
-		u8  process_id; /* STA FW */
-		u8  hlid; /* AP FW */
-	} __packed;
+	u8  hlid;
 	u8  pad_len;
 	u8  reserved;
 } __packed;

drivers/net/wireless/wl12xx/tx.c

@@ -276,9 +276,9 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
 			wl->session_counter << TX_HW_ATTR_OFST_SESSION_COUNTER;
 	}
 
-	if (wl->bss_type != BSS_TYPE_AP_BSS) {
-		desc->aid = hlid;
+	desc->hlid = hlid;
 
+	if (wl->bss_type != BSS_TYPE_AP_BSS) {
 		/* if the packets are destined for AP (have a STA entry)
 		   send them with AP rate policies, otherwise use default
 		   basic rates */
@@ -287,7 +287,6 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
 		else
 			rate_idx = ACX_TX_BASIC_RATE;
 	} else {
-		desc->hlid = hlid;
 		switch (hlid) {
 		case WL1271_AP_GLOBAL_HLID:
 			rate_idx = ACX_TX_AP_MODE_MGMT_RATE;
@@ -375,7 +374,15 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct sk_buff *skb,
 	if (wl->bss_type == BSS_TYPE_AP_BSS)
 		hlid = wl1271_tx_get_hlid(skb);
 	else
-		hlid = TX_HW_DEFAULT_AID;
+		if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
+			hlid = wl->sta_hlid;
+		else
+			hlid = wl->dev_hlid;
+
+	if (hlid == WL12XX_INVALID_LINK_ID) {
+		wl1271_error("invalid hlid. dropping skb 0x%p", skb);
+		return -EINVAL;
+	}
 
 	ret = wl1271_tx_allocate(wl, skb, extra, buf_offset, hlid);
 	if (ret < 0)

drivers/net/wireless/wl12xx/tx.h

@@ -29,9 +29,6 @@
 
 #define TX_HW_MGMT_PKT_LIFETIME_TU       2000
 #define TX_HW_AP_MODE_PKT_LIFETIME_TU    8000
-/* The chipset reference driver states, that the "aid" value 1
- * is for infra-BSS, but is still always used */
-#define TX_HW_DEFAULT_AID                1
 
 #define TX_HW_ATTR_SAVE_RETRIES          BIT(0)
 #define TX_HW_ATTR_HEADER_PAD            BIT(1)
@@ -116,12 +113,8 @@ struct wl1271_tx_hw_descr {
 	u8 id;
 	/* The packet TID value (as User-Priority) */
 	u8 tid;
-	union {
-		/* STA - Identifier of the remote STA in IBSS, 1 in infra-BSS */
-		u8 aid;
-		/* AP - host link ID (HLID) */
-		u8 hlid;
-	} __packed;
+	/* host link ID (HLID) */
+	u8 hlid;
 	u8 reserved;
 } __packed;
 
@@ -133,7 +126,8 @@ enum wl1271_tx_hw_res_status {
 	TX_TIMEOUT          = 4,
 	TX_KEY_NOT_FOUND    = 5,
 	TX_PEER_NOT_FOUND   = 6,
-	TX_SESSION_MISMATCH = 7
+	TX_SESSION_MISMATCH = 7,
+	TX_LINK_NOT_VALID   = 8,
 };
 
 struct wl1271_tx_hw_res_descr {

drivers/net/wireless/wl12xx/wl12xx.h

@@ -159,7 +159,7 @@ extern u32 wl12xx_debug_level;
 #define WL1271_AP_BSS_INDEX        0
 #define WL1271_AP_DEF_BEACON_EXP   20
 
-#define ACX_TX_DESCRIPTORS         32
+#define ACX_TX_DESCRIPTORS         16
 
 #define WL1271_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)