Merge tag 'mt76-for-kvalo-2018-09-19' of https://github.com/nbd168/wi…

…reless

mt76 patches for 4.20

* lots of mt76x0 cleanups / fixes
* mt76x2u fixes
* unify code between mt76x0, mt76x2e and mt76x2u
* rename mt76x0 to mt76x0u
* improve rx buffer allocation for all variants
* prepare for adding mt76x0e (pci-e variant) support
  add CONFIG_MT76x0E kconfig symbol

drivers/net/wireless/mediatek/mt76/Kconfig

@@ -7,25 +7,39 @@ config MT76_USB
 
 config MT76x02_LIB
 	tristate
-	depends on MT76_CORE
+	select MT76_CORE
+
+config MT76x02_USB
+	tristate
+	select MT76_USB
+
+config MT76x0_COMMON
+	tristate
+	select MT76x02_LIB
 
 config MT76x2_COMMON
 	tristate
 	select MT76x02_LIB
-	depends on MT76_CORE
 
 config MT76x0U
 	tristate "MediaTek MT76x0U (USB) support"
-	select MT76_CORE
+	select MT76x0_COMMON
+	select MT76x02_USB
 	depends on MAC80211
 	depends on USB
-	select MT76x02_LIB
 	help
 	  This adds support for MT7610U-based wireless USB dongles.
 
+config MT76x0E
+	tristate "MediaTek MT76x0E (PCIe) support"
+	select MT76x0_COMMON
+	depends on MAC80211
+	depends on PCI
+	help
+	  This adds support for MT7610/MT7630-based wireless PCIe devices.
+
 config MT76x2E
 	tristate "MediaTek MT76x2E (PCIe) support"
-	select MT76_CORE
 	select MT76x2_COMMON
 	depends on MAC80211
 	depends on PCI
@@ -34,9 +48,8 @@ config MT76x2E
 
 config MT76x2U
 	tristate "MediaTek MT76x2U (USB) support"
-	select MT76_CORE
-	select MT76_USB
 	select MT76x2_COMMON
+	select MT76x02_USB
 	depends on MAC80211
 	depends on USB
 	help

drivers/net/wireless/mediatek/mt76/Makefile

@@ -1,7 +1,8 @@
 obj-$(CONFIG_MT76_CORE) += mt76.o
 obj-$(CONFIG_MT76_USB) += mt76-usb.o
-obj-$(CONFIG_MT76x0U) += mt76x0/
+obj-$(CONFIG_MT76x0_COMMON) += mt76x0/
 obj-$(CONFIG_MT76x02_LIB) += mt76x02-lib.o
+obj-$(CONFIG_MT76x02_USB) += mt76x02-usb.o
 obj-$(CONFIG_MT76x2_COMMON) += mt76x2-common.o
 obj-$(CONFIG_MT76x2E) += mt76x2e.o
 obj-$(CONFIG_MT76x2U) += mt76x2u.o
@@ -14,12 +15,14 @@ mt76-usb-y := usb.o usb_trace.o usb_mcu.o
 CFLAGS_trace.o := -I$(src)
 CFLAGS_usb_trace.o := -I$(src)
 
-mt76x02-lib-y := mt76x02_util.o mt76x02_mac.o
+mt76x02-lib-y := mt76x02_util.o mt76x02_mac.o mt76x02_mcu.o
+
+mt76x02-usb-y := mt76x02_usb_mcu.o mt76x02_usb_core.o
 
 mt76x2-common-y := \
 	mt76x2_eeprom.o mt76x2_tx_common.o mt76x2_mac_common.o \
 	mt76x2_init_common.o mt76x2_common.o mt76x2_phy_common.o \
-	mt76x2_debugfs.o
+	mt76x2_debugfs.o mt76x2_mcu_common.o
 
 mt76x2e-y := \
 	mt76x2_pci.o mt76x2_dma.o \

drivers/net/wireless/mediatek/mt76/dma.c

@@ -322,19 +322,13 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q, bool napi)
 	int len = SKB_WITH_OVERHEAD(q->buf_size);
 	int offset = q->buf_offset;
 	int idx;
-	void *(*alloc)(unsigned int fragsz);
-
-	if (napi)
-		alloc = napi_alloc_frag;
-	else
-		alloc = netdev_alloc_frag;
 
 	spin_lock_bh(&q->lock);
 
 	while (q->queued < q->ndesc - 1) {
 		struct mt76_queue_buf qbuf;
 
-		buf = alloc(q->buf_size);
+		buf = page_frag_alloc(&q->rx_page, q->buf_size, GFP_ATOMIC);
 		if (!buf)
 			break;
 
@@ -361,6 +355,7 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q, bool napi)
 static void
 mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q)
 {
+	struct page *page;
 	void *buf;
 	bool more;
 
@@ -373,6 +368,13 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q)
 		skb_free_frag(buf);
 	} while (1);
 	spin_unlock_bh(&q->lock);
+
+	if (!q->rx_page.va)
+		return;
+
+	page = virt_to_page(q->rx_page.va);
+	__page_frag_cache_drain(page, q->rx_page.pagecnt_bias);
+	memset(&q->rx_page, 0, sizeof(q->rx_page));
 }
 
 static void

drivers/net/wireless/mediatek/mt76/dma.h

@@ -25,34 +25,6 @@
 #define MT_DMA_CTL_LAST_SEC0		BIT(30)
 #define MT_DMA_CTL_DMA_DONE		BIT(31)
 
-#define MT_TXD_INFO_LEN			GENMASK(15, 0)
-#define MT_TXD_INFO_NEXT_VLD		BIT(16)
-#define MT_TXD_INFO_TX_BURST		BIT(17)
-#define MT_TXD_INFO_80211		BIT(19)
-#define MT_TXD_INFO_TSO			BIT(20)
-#define MT_TXD_INFO_CSO			BIT(21)
-#define MT_TXD_INFO_WIV			BIT(24)
-#define MT_TXD_INFO_QSEL		GENMASK(26, 25)
-#define MT_TXD_INFO_DPORT		GENMASK(29, 27)
-#define MT_TXD_INFO_TYPE		GENMASK(31, 30)
-
-#define MT_RX_FCE_INFO_LEN		GENMASK(13, 0)
-#define MT_RX_FCE_INFO_SELF_GEN		BIT(15)
-#define MT_RX_FCE_INFO_CMD_SEQ		GENMASK(19, 16)
-#define MT_RX_FCE_INFO_EVT_TYPE		GENMASK(23, 20)
-#define MT_RX_FCE_INFO_PCIE_INTR	BIT(24)
-#define MT_RX_FCE_INFO_QSEL		GENMASK(26, 25)
-#define MT_RX_FCE_INFO_D_PORT		GENMASK(29, 27)
-#define MT_RX_FCE_INFO_TYPE		GENMASK(31, 30)
-
-/* MCU request message header  */
-#define MT_MCU_MSG_LEN			GENMASK(15, 0)
-#define MT_MCU_MSG_CMD_SEQ		GENMASK(19, 16)
-#define MT_MCU_MSG_CMD_TYPE		GENMASK(26, 20)
-#define MT_MCU_MSG_PORT			GENMASK(29, 27)
-#define MT_MCU_MSG_TYPE			GENMASK(31, 30)
-#define MT_MCU_MSG_TYPE_CMD		BIT(30)
-
 #define MT_DMA_HDR_LEN			4
 #define MT_RX_INFO_LEN			4
 #define MT_FCE_INFO_LEN			4
@@ -65,14 +37,11 @@ struct mt76_desc {
 	__le32 info;
 } __packed __aligned(4);
 
-enum dma_msg_port {
-	WLAN_PORT,
-	CPU_RX_PORT,
-	CPU_TX_PORT,
-	HOST_PORT,
-	VIRTUAL_CPU_RX_PORT,
-	VIRTUAL_CPU_TX_PORT,
-	DISCARD,
+enum mt76_qsel {
+	MT_QSEL_MGMT,
+	MT_QSEL_HCCA,
+	MT_QSEL_EDCA,
+	MT_QSEL_EDCA_2,
 };
 
 enum mt76_mcu_evt_type {

drivers/net/wireless/mediatek/mt76/mac80211.c

@@ -475,7 +475,7 @@ void mt76_wcid_key_setup(struct mt76_dev *dev, struct mt76_wcid *wcid,
 }
 EXPORT_SYMBOL(mt76_wcid_key_setup);
 
-static struct ieee80211_sta *mt76_rx_convert(struct sk_buff *skb)
+struct ieee80211_sta *mt76_rx_convert(struct sk_buff *skb)
 {
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
 	struct mt76_rx_status mstat;
@@ -500,6 +500,7 @@ static struct ieee80211_sta *mt76_rx_convert(struct sk_buff *skb)
 
 	return wcid_to_sta(mstat.wcid);
 }
+EXPORT_SYMBOL(mt76_rx_convert);
 
 static int
 mt76_check_ccmp_pn(struct sk_buff *skb)

drivers/net/wireless/mediatek/mt76/mmio.c

@@ -21,7 +21,7 @@ static u32 mt76_mmio_rr(struct mt76_dev *dev, u32 offset)
 {
 	u32 val;
 
-	val = ioread32(dev->regs + offset);
+	val = ioread32(dev->mmio.regs + offset);
 	trace_reg_rr(dev, offset, val);
 
 	return val;
@@ -30,7 +30,7 @@ static u32 mt76_mmio_rr(struct mt76_dev *dev, u32 offset)
 static void mt76_mmio_wr(struct mt76_dev *dev, u32 offset, u32 val)
 {
 	trace_reg_wr(dev, offset, val);
-	iowrite32(val, dev->regs + offset);
+	iowrite32(val, dev->mmio.regs + offset);
 }
 
 static u32 mt76_mmio_rmw(struct mt76_dev *dev, u32 offset, u32 mask, u32 val)
@@ -43,7 +43,7 @@ static u32 mt76_mmio_rmw(struct mt76_dev *dev, u32 offset, u32 mask, u32 val)
 static void mt76_mmio_copy(struct mt76_dev *dev, u32 offset, const void *data,
 			   int len)
 {
-	__iowrite32_copy(dev->regs + offset, data, len >> 2);
+	__iowrite32_copy(dev->mmio.regs + offset, data, len >> 2);
 }
 
 void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs)
@@ -56,6 +56,10 @@ void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs)
 	};
 
 	dev->bus = &mt76_mmio_ops;
-	dev->regs = regs;
+	dev->mmio.regs = regs;
+
+	skb_queue_head_init(&dev->mmio.mcu.res_q);
+	init_waitqueue_head(&dev->mmio.mcu.wait);
+	mutex_init(&dev->mmio.mcu.mutex);
 }
 EXPORT_SYMBOL_GPL(mt76_mmio_init);