Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:
 "This set fixes a bunch of fallout from the changes that went in during
  this merge window, particularly:

   - Fix fsl_pq_mdio (Claudiu Manoil) and fm10k (Pranith Kumar) build
     failures.

   - Several networking drivers do atomic_set() on page counts where
     that's not exactly legal.  From Eric Dumazet.

   - Make __skb_flow_get_ports() work cleanly with unaligned data, from
     Alexander Duyck.

   - Fix some kernel-doc buglets in rfkill and netlabel, from Fabian
     Frederick.

   - Unbalanced enable_irq_wake usage in bcmgenet and systemport
     drivers, from Florian Fainelli.

   - pxa168_eth needs to depend on HAS_DMA, from Geert Uytterhoeven.

   - Multi-dequeue in the qdisc layer severely bypasses the fairness
     limits the previous code used to enforce, reintroduce in a way that
     at the same time doesn't compromise bulk dequeue opportunities.
     From Jesper Dangaard Brouer.

   - macvlan receive path unnecessarily hops through a softirq by using
     netif_rx() instead of netif_receive_skb().  From Jason Baron"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (51 commits)
  net: systemport: avoid unbalanced enable_irq_wake calls
  net: bcmgenet: avoid unbalanced enable_irq_wake calls
  net: bcmgenet: fix off-by-one in incrementing read pointer
  net: fix races in page->_count manipulation
  mlx4: fix race accessing page->_count
  ixgbe: fix race accessing page->_count
  igb: fix race accessing page->_count
  fm10k: fix race accessing page->_count
  net/phy: micrel: Add clock support for KSZ8021/KSZ8031
  flow-dissector: Fix alignment issue in __skb_flow_get_ports
  net: filter: fix the comments
  Documentation: replace __sk_run_filter with __bpf_prog_run
  macvlan: optimize the receive path
  macvlan: pass 'bool' type to macvlan_count_rx()
  drivers: net: xgene: Add 10GbE ethtool support
  drivers: net: xgene: Add 10GbE support
  drivers: net: xgene: Preparing for adding 10GbE support
  dtb: Add 10GbE node to APM X-Gene SoC device tree
  Documentation: dts: Update section header for APM X-Gene
  MAINTAINERS: Update APM X-Gene section
  ...

Documentation/devicetree/bindings/net/apm-xgene-enet.txt

@@ -3,7 +3,7 @@ APM X-Gene SoC Ethernet nodes
 Ethernet nodes are defined to describe on-chip ethernet interfaces in
 APM X-Gene SoC.
 
-Required properties:
+Required properties for all the ethernet interfaces:
 - compatible: Should be "apm,xgene-enet"
 - reg: Address and length of the register set for the device. It contains the
   information of registers in the same order as described by reg-names
@@ -15,6 +15,8 @@ Required properties:
 - clocks: Reference to the clock entry.
 - local-mac-address: MAC address assigned to this device
 - phy-connection-type: Interface type between ethernet device and PHY device
+
+Required properties for ethernet interfaces that have external PHY:
 - phy-handle: Reference to a PHY node connected to this device
 
 - mdio: Device tree subnode with the following required properties:

Documentation/devicetree/bindings/net/micrel.txt

@@ -16,3 +16,9 @@ Optional properties:
 	      KSZ8051: register 0x1f, bits 5..4
 
               See the respective PHY datasheet for the mode values.
+
+ - clocks, clock-names: contains clocks according to the common clock bindings.
+
+              supported clocks:
+	      - KSZ8021, KSZ8031: "rmii-ref": The RMII refence input clock. Used
+		to determine the XI input clock.

Documentation/networking/filter.txt

@@ -700,11 +700,11 @@ Some core changes of the new internal format:
     bpf_exit
 
   If f2 is JITed and the pointer stored to '_f2'. The calls f1 -> f2 -> f3 and
-  returns will be seamless. Without JIT, __sk_run_filter() interpreter needs to
+  returns will be seamless. Without JIT, __bpf_prog_run() interpreter needs to
   be used to call into f2.
 
   For practical reasons all eBPF programs have only one argument 'ctx' which is
-  already placed into R1 (e.g. on __sk_run_filter() startup) and the programs
+  already placed into R1 (e.g. on __bpf_prog_run() startup) and the programs
   can call kernel functions with up to 5 arguments. Calls with 6 or more arguments
   are currently not supported, but these restrictions can be lifted if necessary
   in the future.

MAINTAINERS

@@ -734,7 +734,6 @@ F:	net/appletalk/
 APPLIED MICRO (APM) X-GENE SOC ETHERNET DRIVER
 M:	Iyappan Subramanian <isubramanian@apm.com>
 M:	Keyur Chudgar <kchudgar@apm.com>
-M:	Ravi Patel <rapatel@apm.com>
 S:	Supported
 F:	drivers/net/ethernet/apm/xgene/
 F:	Documentation/devicetree/bindings/net/apm-xgene-enet.txt

arch/arm64/boot/dts/apm-mustang.dts

@@ -40,3 +40,7 @@
 &menet {
 	status = "ok";
 };
+
+&xgenet {
+	status = "ok";
+};

arch/arm64/boot/dts/apm-storm.dtsi

@@ -176,6 +176,16 @@
 				clock-output-names = "menetclk";
 			};
 
+			xge0clk: xge0clk@1f61c000 {
+				compatible = "apm,xgene-device-clock";
+				#clock-cells = <1>;
+				clocks = <&socplldiv2 0>;
+				reg = <0x0 0x1f61c000 0x0 0x1000>;
+				reg-names = "csr-reg";
+				csr-mask = <0x3>;
+				clock-output-names = "xge0clk";
+			};
+
 			sataphy1clk: sataphy1clk@1f21c000 {
 				compatible = "apm,xgene-device-clock";
 				#clock-cells = <1>;
@@ -585,7 +595,8 @@
 			interrupts = <0x0 0x3c 0x4>;
 			dma-coherent;
 			clocks = <&menetclk 0>;
-			local-mac-address = [00 01 73 00 00 01];
+			/* mac address will be overwritten by the bootloader */
+			local-mac-address = [00 00 00 00 00 00];
 			phy-connection-type = "rgmii";
 			phy-handle = <&menetphy>;
 			mdio {
@@ -600,12 +611,26 @@
 			};
 		};
 
+		xgenet: ethernet@1f610000 {
+			compatible = "apm,xgene-enet";
+			status = "disabled";
+			reg = <0x0 0x1f610000 0x0 0xd100>,
+			      <0x0 0x1f600000 0x0 0X400>,
+			      <0x0 0x18000000 0x0 0X200>;
+			reg-names = "enet_csr", "ring_csr", "ring_cmd";
+			interrupts = <0x0 0x60 0x4>;
+			dma-coherent;
+			clocks = <&xge0clk 0>;
+			/* mac address will be overwritten by the bootloader */
+			local-mac-address = [00 00 00 00 00 00];
+			phy-connection-type = "xgmii";
+		};
+
 		rng: rng@10520000 {
 			compatible = "apm,xgene-rng";
 			reg = <0x0 0x10520000 0x0 0x100>;
 			interrupts = <0x0 0x41 0x4>;
 			clocks = <&rngpkaclk 0>;
 		};
-
 	};
 };

drivers/net/ethernet/apm/xgene/Makefile

@@ -2,5 +2,6 @@
 # Makefile for APM X-Gene Ethernet Driver.
 #
 
-xgene-enet-objs := xgene_enet_hw.o xgene_enet_main.o xgene_enet_ethtool.o
+xgene-enet-objs := xgene_enet_hw.o xgene_enet_xgmac.o \
+		   xgene_enet_main.o xgene_enet_ethtool.o
 obj-$(CONFIG_NET_XGENE) += xgene-enet.o

drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c

@@ -59,10 +59,22 @@ static int xgene_get_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
 	struct phy_device *phydev = pdata->phy_dev;
 
-	if (phydev == NULL)
-		return -ENODEV;
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) {
+		if (phydev == NULL)
+			return -ENODEV;
 
-	return phy_ethtool_gset(phydev, cmd);
+		return phy_ethtool_gset(phydev, cmd);
+	}
+
+	cmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE;
+	cmd->advertising = cmd->supported;
+	ethtool_cmd_speed_set(cmd, SPEED_10000);
+	cmd->duplex = DUPLEX_FULL;
+	cmd->port = PORT_FIBRE;
+	cmd->transceiver = XCVR_EXTERNAL;
+	cmd->autoneg = AUTONEG_DISABLE;
+
+	return 0;
 }
 
 static int xgene_set_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
@@ -70,10 +82,14 @@ static int xgene_set_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
 	struct phy_device *phydev = pdata->phy_dev;
 
-	if (phydev == NULL)
-		return -ENODEV;
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) {
+		if (phydev == NULL)
+			return -ENODEV;
+
+		return phy_ethtool_sset(phydev, cmd);
+	}
 
-	return phy_ethtool_sset(phydev, cmd);
+	return -EINVAL;
 }
 
 static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data)

drivers/net/ethernet/apm/xgene/xgene_enet_hw.c

@@ -402,7 +402,7 @@ static int xgene_mii_phy_read(struct xgene_enet_pdata *pdata,
 	return data;
 }
 
-void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata)
+static void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata)
 {
 	u32 addr0, addr1;
 	u8 *dev_addr = pdata->ndev->dev_addr;
@@ -436,13 +436,13 @@ static int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata)
 	return 0;
 }
 
-void xgene_gmac_reset(struct xgene_enet_pdata *pdata)
+static void xgene_gmac_reset(struct xgene_enet_pdata *pdata)
 {
 	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, SOFT_RESET1);
 	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, 0);
 }
 
-void xgene_gmac_init(struct xgene_enet_pdata *pdata, int speed)
+static void xgene_gmac_init(struct xgene_enet_pdata *pdata)
 {
 	u32 value, mc2;
 	u32 intf_ctl, rgmii;
@@ -456,7 +456,7 @@ void xgene_gmac_init(struct xgene_enet_pdata *pdata, int speed)
 	xgene_enet_rd_mcx_mac(pdata, INTERFACE_CONTROL_ADDR, &intf_ctl);
 	xgene_enet_rd_csr(pdata, RGMII_REG_0_ADDR, &rgmii);
 
-	switch (speed) {
+	switch (pdata->phy_speed) {
 	case SPEED_10:
 		ENET_INTERFACE_MODE2_SET(&mc2, 1);
 		CFG_MACMODE_SET(&icm0, 0);
@@ -525,8 +525,8 @@ static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata)
 	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIQMLITEFPQASSOC_ADDR, val);
 }
 
-void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata,
-			   u32 dst_ring_num, u16 bufpool_id)
+static void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata,
+				  u32 dst_ring_num, u16 bufpool_id)
 {
 	u32 cb;
 	u32 fpsel;
@@ -544,7 +544,7 @@ void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata,
 	xgene_enet_wr_csr(pdata, CLE_BYPASS_REG1_0_ADDR, cb);
 }
 
-void xgene_gmac_rx_enable(struct xgene_enet_pdata *pdata)
+static void xgene_gmac_rx_enable(struct xgene_enet_pdata *pdata)
 {
 	u32 data;
 
@@ -552,7 +552,7 @@ void xgene_gmac_rx_enable(struct xgene_enet_pdata *pdata)
 	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data | RX_EN);
 }
 
-void xgene_gmac_tx_enable(struct xgene_enet_pdata *pdata)
+static void xgene_gmac_tx_enable(struct xgene_enet_pdata *pdata)
 {
 	u32 data;
 
@@ -560,7 +560,7 @@ void xgene_gmac_tx_enable(struct xgene_enet_pdata *pdata)
 	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data | TX_EN);
 }
 
-void xgene_gmac_rx_disable(struct xgene_enet_pdata *pdata)
+static void xgene_gmac_rx_disable(struct xgene_enet_pdata *pdata)
 {
 	u32 data;
 
@@ -568,7 +568,7 @@ void xgene_gmac_rx_disable(struct xgene_enet_pdata *pdata)
 	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data & ~RX_EN);
 }
 
-void xgene_gmac_tx_disable(struct xgene_enet_pdata *pdata)
+static void xgene_gmac_tx_disable(struct xgene_enet_pdata *pdata)
 {
 	u32 data;
 
@@ -576,7 +576,7 @@ void xgene_gmac_tx_disable(struct xgene_enet_pdata *pdata)
 	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data & ~TX_EN);
 }
 
-void xgene_enet_reset(struct xgene_enet_pdata *pdata)
+static void xgene_enet_reset(struct xgene_enet_pdata *pdata)
 {
 	u32 val;
 
@@ -593,7 +593,7 @@ void xgene_enet_reset(struct xgene_enet_pdata *pdata)
 	xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, val);
 }
 
-void xgene_gport_shutdown(struct xgene_enet_pdata *pdata)
+static void xgene_gport_shutdown(struct xgene_enet_pdata *pdata)
 {
 	clk_disable_unprepare(pdata->clk);
 }
@@ -627,10 +627,10 @@ static void xgene_enet_adjust_link(struct net_device *ndev)
 
 	if (phydev->link) {
 		if (pdata->phy_speed != phydev->speed) {
-			xgene_gmac_init(pdata, phydev->speed);
+			pdata->phy_speed = phydev->speed;
+			xgene_gmac_init(pdata);
 			xgene_gmac_rx_enable(pdata);
 			xgene_gmac_tx_enable(pdata);
-			pdata->phy_speed = phydev->speed;
 			phy_print_status(phydev);
 		}
 	} else {
@@ -726,3 +726,19 @@ void xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata)
 	mdiobus_free(pdata->mdio_bus);
 	pdata->mdio_bus = NULL;
 }
+
+struct xgene_mac_ops xgene_gmac_ops = {
+	.init = xgene_gmac_init,
+	.reset = xgene_gmac_reset,
+	.rx_enable = xgene_gmac_rx_enable,
+	.tx_enable = xgene_gmac_tx_enable,
+	.rx_disable = xgene_gmac_rx_disable,
+	.tx_disable = xgene_gmac_tx_disable,
+	.set_mac_addr = xgene_gmac_set_mac_addr,
+};
+
+struct xgene_port_ops xgene_gport_ops = {
+	.reset = xgene_enet_reset,
+	.cle_bypass = xgene_enet_cle_bypass,
+	.shutdown = xgene_gport_shutdown,
+};

drivers/net/ethernet/apm/xgene/xgene_enet_hw.h

@@ -42,6 +42,11 @@ static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
 	return (val & GENMASK(end, start)) >> start;
 }
 
+enum xgene_enet_rm {
+	RM0,
+	RM3 = 3
+};
+
 #define CSR_RING_ID		0x0008
 #define OVERWRITE		BIT(31)
 #define IS_BUFFER_POOL		BIT(20)
@@ -52,7 +57,6 @@ static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
 #define CSR_RING_WR_BASE	0x0070
 #define NUM_RING_CONFIG		5
 #define BUFPOOL_MODE		3
-#define RM3			3
 #define INC_DEC_CMD_ADDR	0x002c
 #define UDP_HDR_SIZE		2
 #define BUF_LEN_CODE_2K		0x5000
@@ -94,11 +98,9 @@ static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
 
 #define BLOCK_ETH_CSR_OFFSET		0x2000
 #define BLOCK_ETH_RING_IF_OFFSET	0x9000
-#define BLOCK_ETH_CLKRST_CSR_OFFSET	0xC000
 #define BLOCK_ETH_DIAG_CSR_OFFSET	0xD000
 
 #define BLOCK_ETH_MAC_OFFSET		0x0000
-#define BLOCK_ETH_STATS_OFFSET		0x0014
 #define BLOCK_ETH_MAC_CSR_OFFSET	0x2800
 
 #define MAC_ADDR_REG_OFFSET		0x00
@@ -107,12 +109,6 @@ static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
 #define MAC_READ_REG_OFFSET		0x0c
 #define MAC_COMMAND_DONE_REG_OFFSET	0x10
 
-#define STAT_ADDR_REG_OFFSET		0x00
-#define STAT_COMMAND_REG_OFFSET		0x04
-#define STAT_WRITE_REG_OFFSET		0x08
-#define STAT_READ_REG_OFFSET		0x0c
-#define STAT_COMMAND_DONE_REG_OFFSET	0x10
-
 #define MII_MGMT_CONFIG_ADDR		0x20
 #define MII_MGMT_COMMAND_ADDR		0x24
 #define MII_MGMT_ADDRESS_ADDR		0x28
@@ -318,20 +314,10 @@ void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring,
 			    struct xgene_enet_pdata *pdata,
 			    enum xgene_enet_err_code status);
 
-void xgene_enet_reset(struct xgene_enet_pdata *priv);
-void xgene_gmac_reset(struct xgene_enet_pdata *priv);
-void xgene_gmac_init(struct xgene_enet_pdata *priv, int speed);
-void xgene_gmac_tx_enable(struct xgene_enet_pdata *priv);
-void xgene_gmac_rx_enable(struct xgene_enet_pdata *priv);
-void xgene_gmac_tx_disable(struct xgene_enet_pdata *priv);
-void xgene_gmac_rx_disable(struct xgene_enet_pdata *priv);
-void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata);
-void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata,
-			   u32 dst_ring_num, u16 bufpool_id);
-void xgene_gport_shutdown(struct xgene_enet_pdata *priv);
-void xgene_gmac_get_tx_stats(struct xgene_enet_pdata *pdata);
-
 int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata);
 void xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata);
 
+extern struct xgene_mac_ops xgene_gmac_ops;
+extern struct xgene_port_ops xgene_gport_ops;
+
 #endif /* __XGENE_ENET_HW_H__ */

drivers/net/ethernet/apm/xgene/xgene_enet_main.c

@@ -21,6 +21,7 @@
 
 #include "xgene_enet_main.h"
 #include "xgene_enet_hw.h"
+#include "xgene_enet_xgmac.h"
 
 static void xgene_enet_init_bufpool(struct xgene_enet_desc_ring *buf_pool)
 {
@@ -390,7 +391,7 @@ static int xgene_enet_process_ring(struct xgene_enet_desc_ring *ring,
 		}
 	}
 
-	return budget;
+	return count;
 }
 
 static int xgene_enet_napi(struct napi_struct *napi, const int budget)
@@ -413,7 +414,7 @@ static void xgene_enet_timeout(struct net_device *ndev)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
 
-	xgene_gmac_reset(pdata);
+	pdata->mac_ops->reset(pdata);
 }
 
 static int xgene_enet_register_irq(struct net_device *ndev)
@@ -445,18 +446,21 @@ static void xgene_enet_free_irq(struct net_device *ndev)
 static int xgene_enet_open(struct net_device *ndev)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
+	struct xgene_mac_ops *mac_ops = pdata->mac_ops;
 	int ret;
 
-	xgene_gmac_tx_enable(pdata);
-	xgene_gmac_rx_enable(pdata);
+	mac_ops->tx_enable(pdata);
+	mac_ops->rx_enable(pdata);
 
 	ret = xgene_enet_register_irq(ndev);
 	if (ret)
 		return ret;
 	napi_enable(&pdata->rx_ring->napi);
 
-	if (pdata->phy_dev)
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII)
 		phy_start(pdata->phy_dev);
+	else
+		schedule_delayed_work(&pdata->link_work, PHY_POLL_LINK_OFF);
 
 	netif_start_queue(ndev);
 
@@ -466,18 +470,21 @@ static int xgene_enet_open(struct net_device *ndev)
 static int xgene_enet_close(struct net_device *ndev)
 {
 	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
+	struct xgene_mac_ops *mac_ops = pdata->mac_ops;
 
 	netif_stop_queue(ndev);
 
-	if (pdata->phy_dev)
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII)
 		phy_stop(pdata->phy_dev);
+	else
+		cancel_delayed_work_sync(&pdata->link_work);
 
 	napi_disable(&pdata->rx_ring->napi);
 	xgene_enet_free_irq(ndev);
 	xgene_enet_process_ring(pdata->rx_ring, -1);
 
-	xgene_gmac_tx_disable(pdata);
-	xgene_gmac_rx_disable(pdata);
+	mac_ops->tx_disable(pdata);
+	mac_ops->rx_disable(pdata);
 
 	return 0;
 }
@@ -613,7 +620,6 @@ static struct xgene_enet_desc_ring *xgene_enet_create_desc_ring(
 
 	ring->cmd_base = pdata->ring_cmd_addr + (ring->num << 6);
 	ring->cmd = ring->cmd_base + INC_DEC_CMD_ADDR;
-	pdata->rm = RM3;
 	ring = xgene_enet_setup_ring(ring);
 	netdev_dbg(ndev, "ring info: num=%d  size=%d  id=%d  slots=%d\n",
 		   ring->num, ring->size, ring->id, ring->slots);
@@ -724,7 +730,7 @@ static int xgene_enet_set_mac_address(struct net_device *ndev, void *addr)
 	ret = eth_mac_addr(ndev, addr);
 	if (ret)
 		return ret;
-	xgene_gmac_set_mac_addr(pdata);
+	pdata->mac_ops->set_mac_addr(pdata);
 
 	return ret;
 }
@@ -803,8 +809,13 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
 
 	pdata->phy_mode = of_get_phy_mode(pdev->dev.of_node);
 	if (pdata->phy_mode < 0) {
-		dev_err(dev, "Incorrect phy-connection-type in DTS\n");
-		return -EINVAL;
+		dev_err(dev, "Unable to get phy-connection-type\n");
+		return pdata->phy_mode;
+	}
+	if (pdata->phy_mode != PHY_INTERFACE_MODE_RGMII &&
+	    pdata->phy_mode != PHY_INTERFACE_MODE_XGMII) {
+		dev_err(dev, "Incorrect phy-connection-type specified\n");
+		return -ENODEV;
 	}
 
 	pdata->clk = devm_clk_get(&pdev->dev, NULL);
@@ -819,12 +830,18 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
 	pdata->eth_csr_addr = base_addr + BLOCK_ETH_CSR_OFFSET;
 	pdata->eth_ring_if_addr = base_addr + BLOCK_ETH_RING_IF_OFFSET;
 	pdata->eth_diag_csr_addr = base_addr + BLOCK_ETH_DIAG_CSR_OFFSET;
-	pdata->mcx_mac_addr = base_addr + BLOCK_ETH_MAC_OFFSET;
-	pdata->mcx_stats_addr = base_addr + BLOCK_ETH_STATS_OFFSET;
-	pdata->mcx_mac_csr_addr = base_addr + BLOCK_ETH_MAC_CSR_OFFSET;
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) {
+		pdata->mcx_mac_addr = base_addr + BLOCK_ETH_MAC_OFFSET;
+		pdata->mcx_mac_csr_addr = base_addr + BLOCK_ETH_MAC_CSR_OFFSET;
+		pdata->rm = RM3;
+	} else {
+		pdata->mcx_mac_addr = base_addr + BLOCK_AXG_MAC_OFFSET;
+		pdata->mcx_mac_csr_addr = base_addr + BLOCK_AXG_MAC_CSR_OFFSET;
+		pdata->rm = RM0;
+	}
 	pdata->rx_buff_cnt = NUM_PKT_BUF;
 
-	return ret;
+	return 0;
 }
 
 static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata)
@@ -834,8 +851,7 @@ static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata)
 	u16 dst_ring_num;
 	int ret;
 
-	xgene_gmac_tx_disable(pdata);
-	xgene_gmac_rx_disable(pdata);
+	pdata->port_ops->reset(pdata);
 
 	ret = xgene_enet_create_desc_rings(ndev);
 	if (ret) {
@@ -853,11 +869,26 @@ static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata)
 	}
 
 	dst_ring_num = xgene_enet_dst_ring_num(pdata->rx_ring);
-	xgene_enet_cle_bypass(pdata, dst_ring_num, buf_pool->id);
+	pdata->port_ops->cle_bypass(pdata, dst_ring_num, buf_pool->id);
+	pdata->mac_ops->init(pdata);
 
 	return ret;
 }
 
+static void xgene_enet_setup_ops(struct xgene_enet_pdata *pdata)
+{
+	switch (pdata->phy_mode) {
+	case PHY_INTERFACE_MODE_RGMII:
+		pdata->mac_ops = &xgene_gmac_ops;
+		pdata->port_ops = &xgene_gport_ops;
+		break;
+	default:
+		pdata->mac_ops = &xgene_xgmac_ops;
+		pdata->port_ops = &xgene_xgport_ops;
+		break;
+	}
+}
+
 static int xgene_enet_probe(struct platform_device *pdev)
 {
 	struct net_device *ndev;
@@ -886,8 +917,7 @@ static int xgene_enet_probe(struct platform_device *pdev)
 	if (ret)
 		goto err;
 
-	xgene_enet_reset(pdata);
-	xgene_gmac_init(pdata, SPEED_1000);
+	xgene_enet_setup_ops(pdata);
 
 	ret = register_netdev(ndev);
 	if (ret) {
@@ -907,7 +937,10 @@ static int xgene_enet_probe(struct platform_device *pdev)
 
 	napi = &pdata->rx_ring->napi;
 	netif_napi_add(ndev, napi, xgene_enet_napi, NAPI_POLL_WEIGHT);
-	ret = xgene_enet_mdio_config(pdata);
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII)
+		ret = xgene_enet_mdio_config(pdata);
+	else
+		INIT_DELAYED_WORK(&pdata->link_work, xgene_enet_link_state);
 
 	return ret;
 err:
@@ -918,19 +951,21 @@ err:
 static int xgene_enet_remove(struct platform_device *pdev)
 {
 	struct xgene_enet_pdata *pdata;
+	struct xgene_mac_ops *mac_ops;
 	struct net_device *ndev;
 
 	pdata = platform_get_drvdata(pdev);
+	mac_ops = pdata->mac_ops;
 	ndev = pdata->ndev;
 
-	xgene_gmac_rx_disable(pdata);
-	xgene_gmac_tx_disable(pdata);
+	mac_ops->rx_disable(pdata);
+	mac_ops->tx_disable(pdata);
 
 	netif_napi_del(&pdata->rx_ring->napi);
 	xgene_enet_mdio_remove(pdata);
 	xgene_enet_delete_desc_rings(pdata);
 	unregister_netdev(ndev);
-	xgene_gport_shutdown(pdata);
+	pdata->port_ops->shutdown(pdata);
 	free_netdev(ndev);
 
 	return 0;
@@ -956,5 +991,6 @@ module_platform_driver(xgene_enet_driver);
 
 MODULE_DESCRIPTION("APM X-Gene SoC Ethernet driver");
 MODULE_VERSION(XGENE_DRV_VERSION);
+MODULE_AUTHOR("Iyappan Subramanian <isubramanian@apm.com>");
 MODULE_AUTHOR("Keyur Chudgar <kchudgar@apm.com>");
 MODULE_LICENSE("GPL");

drivers/net/ethernet/apm/xgene/xgene_enet_main.h

@@ -68,6 +68,23 @@ struct xgene_enet_desc_ring {
 	};
 };
 
+struct xgene_mac_ops {
+	void (*init)(struct xgene_enet_pdata *pdata);
+	void (*reset)(struct xgene_enet_pdata *pdata);
+	void (*tx_enable)(struct xgene_enet_pdata *pdata);
+	void (*rx_enable)(struct xgene_enet_pdata *pdata);
+	void (*tx_disable)(struct xgene_enet_pdata *pdata);
+	void (*rx_disable)(struct xgene_enet_pdata *pdata);
+	void (*set_mac_addr)(struct xgene_enet_pdata *pdata);
+};
+
+struct xgene_port_ops {
+	void (*reset)(struct xgene_enet_pdata *pdata);
+	void (*cle_bypass)(struct xgene_enet_pdata *pdata,
+			   u32 dst_ring_num, u16 bufpool_id);
+	void (*shutdown)(struct xgene_enet_pdata *pdata);
+};
+
 /* ethernet private data */
 struct xgene_enet_pdata {
 	struct net_device *ndev;
@@ -88,16 +105,17 @@ struct xgene_enet_pdata {
 	void __iomem *eth_ring_if_addr;
 	void __iomem *eth_diag_csr_addr;
 	void __iomem *mcx_mac_addr;
-	void __iomem *mcx_stats_addr;
 	void __iomem *mcx_mac_csr_addr;
 	void __iomem *base_addr;
 	void __iomem *ring_csr_addr;
 	void __iomem *ring_cmd_addr;
 	u32 phy_addr;
 	int phy_mode;
-	u32 speed;
-	u16 rm;
+	enum xgene_enet_rm rm;
 	struct rtnl_link_stats64 stats;
+	struct xgene_mac_ops *mac_ops;
+	struct xgene_port_ops *port_ops;
+	struct delayed_work link_work;
 };
 
 /* Set the specified value into a bit-field defined by its starting position

drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c

@@ -0,0 +1,331 @@
+/* Applied Micro X-Gene SoC Ethernet Driver
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
+ *	    Keyur Chudgar <kchudgar@apm.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "xgene_enet_main.h"
+#include "xgene_enet_hw.h"
+#include "xgene_enet_xgmac.h"
+
+static void xgene_enet_wr_csr(struct xgene_enet_pdata *pdata,
+			      u32 offset, u32 val)
+{
+	void __iomem *addr = pdata->eth_csr_addr + offset;
+
+	iowrite32(val, addr);
+}
+
+static void xgene_enet_wr_ring_if(struct xgene_enet_pdata *pdata,
+				  u32 offset, u32 val)
+{
+	void __iomem *addr = pdata->eth_ring_if_addr + offset;
+
+	iowrite32(val, addr);
+}
+
+static void xgene_enet_wr_diag_csr(struct xgene_enet_pdata *pdata,
+				   u32 offset, u32 val)
+{
+	void __iomem *addr = pdata->eth_diag_csr_addr + offset;
+
+	iowrite32(val, addr);
+}
+
+static bool xgene_enet_wr_indirect(void __iomem *addr, void __iomem *wr,
+				   void __iomem *cmd, void __iomem *cmd_done,
+				   u32 wr_addr, u32 wr_data)
+{
+	u32 done;
+	u8 wait = 10;
+
+	iowrite32(wr_addr, addr);
+	iowrite32(wr_data, wr);
+	iowrite32(XGENE_ENET_WR_CMD, cmd);
+
+	/* wait for write command to complete */
+	while (!(done = ioread32(cmd_done)) && wait--)
+		udelay(1);
+
+	if (!done)
+		return false;
+
+	iowrite32(0, cmd);
+
+	return true;
+}
+
+static void xgene_enet_wr_mac(struct xgene_enet_pdata *pdata,
+			      u32 wr_addr, u32 wr_data)
+{
+	void __iomem *addr, *wr, *cmd, *cmd_done;
+
+	addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET;
+	wr = pdata->mcx_mac_addr + MAC_WRITE_REG_OFFSET;
+	cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET;
+	cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
+
+	if (!xgene_enet_wr_indirect(addr, wr, cmd, cmd_done, wr_addr, wr_data))
+		netdev_err(pdata->ndev, "MCX mac write failed, addr: %04x\n",
+			   wr_addr);
+}
+
+static void xgene_enet_rd_csr(struct xgene_enet_pdata *pdata,
+			      u32 offset, u32 *val)
+{
+	void __iomem *addr = pdata->eth_csr_addr + offset;
+
+	*val = ioread32(addr);
+}
+
+static void xgene_enet_rd_diag_csr(struct xgene_enet_pdata *pdata,
+				   u32 offset, u32 *val)
+{
+	void __iomem *addr = pdata->eth_diag_csr_addr + offset;
+
+	*val = ioread32(addr);
+}
+
+static bool xgene_enet_rd_indirect(void __iomem *addr, void __iomem *rd,
+				   void __iomem *cmd, void __iomem *cmd_done,
+				   u32 rd_addr, u32 *rd_data)
+{
+	u32 done;
+	u8 wait = 10;
+
+	iowrite32(rd_addr, addr);
+	iowrite32(XGENE_ENET_RD_CMD, cmd);
+
+	/* wait for read command to complete */
+	while (!(done = ioread32(cmd_done)) && wait--)
+		udelay(1);
+
+	if (!done)
+		return false;
+
+	*rd_data = ioread32(rd);
+	iowrite32(0, cmd);
+
+	return true;
+}
+
+static void xgene_enet_rd_mac(struct xgene_enet_pdata *pdata,
+			      u32 rd_addr, u32 *rd_data)
+{
+	void __iomem *addr, *rd, *cmd, *cmd_done;
+
+	addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET;
+	rd = pdata->mcx_mac_addr + MAC_READ_REG_OFFSET;
+	cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET;
+	cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
+
+	if (!xgene_enet_rd_indirect(addr, rd, cmd, cmd_done, rd_addr, rd_data))
+		netdev_err(pdata->ndev, "MCX mac read failed, addr: %04x\n",
+			   rd_addr);
+}
+
+static int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata)
+{
+	struct net_device *ndev = pdata->ndev;
+	u32 data;
+	u8 wait = 10;
+
+	xgene_enet_wr_diag_csr(pdata, ENET_CFG_MEM_RAM_SHUTDOWN_ADDR, 0x0);
+	do {
+		usleep_range(100, 110);
+		xgene_enet_rd_diag_csr(pdata, ENET_BLOCK_MEM_RDY_ADDR, &data);
+	} while ((data != 0xffffffff) && wait--);
+
+	if (data != 0xffffffff) {
+		netdev_err(ndev, "Failed to release memory from shutdown\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata)
+{
+	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQASSOC_ADDR, 0);
+	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPQASSOC_ADDR, 0);
+	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIQMLITEWQASSOC_ADDR, 0);
+	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIQMLITEFPQASSOC_ADDR, 0);
+}
+
+static void xgene_xgmac_reset(struct xgene_enet_pdata *pdata)
+{
+	xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_0, HSTMACRST);
+	xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_0, 0);
+}
+
+static void xgene_xgmac_set_mac_addr(struct xgene_enet_pdata *pdata)
+{
+	u32 addr0, addr1;
+	u8 *dev_addr = pdata->ndev->dev_addr;
+
+	addr0 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
+		(dev_addr[1] << 8) | dev_addr[0];
+	addr1 = (dev_addr[5] << 24) | (dev_addr[4] << 16);
+
+	xgene_enet_wr_mac(pdata, HSTMACADR_LSW_ADDR, addr0);
+	xgene_enet_wr_mac(pdata, HSTMACADR_MSW_ADDR, addr1);
+}
+
+static u32 xgene_enet_link_status(struct xgene_enet_pdata *pdata)
+{
+	u32 data;
+
+	xgene_enet_rd_csr(pdata, XG_LINK_STATUS_ADDR, &data);
+
+	return data;
+}
+
+static void xgene_xgmac_init(struct xgene_enet_pdata *pdata)
+{
+	u32 data;
+
+	xgene_xgmac_reset(pdata);
+
+	xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+	data |= HSTPPEN;
+	data &= ~HSTLENCHK;
+	xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data);
+
+	xgene_enet_wr_mac(pdata, HSTMAXFRAME_LENGTH_ADDR, 0x06000600);
+	xgene_xgmac_set_mac_addr(pdata);
+
+	xgene_enet_rd_csr(pdata, XG_RSIF_CONFIG_REG_ADDR, &data);
+	data |= CFG_RSIF_FPBUFF_TIMEOUT_EN;
+	xgene_enet_wr_csr(pdata, XG_RSIF_CONFIG_REG_ADDR, data);
+
+	xgene_enet_wr_csr(pdata, XG_CFG_BYPASS_ADDR, RESUME_TX);
+	xgene_enet_wr_csr(pdata, XGENET_RX_DV_GATE_REG_0_ADDR, 0);
+	xgene_enet_rd_csr(pdata, XG_ENET_SPARE_CFG_REG_ADDR, &data);
+	data |= BIT(12);
+	xgene_enet_wr_csr(pdata, XG_ENET_SPARE_CFG_REG_ADDR, data);
+	xgene_enet_wr_csr(pdata, XG_ENET_SPARE_CFG_REG_1_ADDR, 0x82);
+}
+
+static void xgene_xgmac_rx_enable(struct xgene_enet_pdata *pdata)
+{
+	u32 data;
+
+	xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+	xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data | HSTRFEN);
+}
+
+static void xgene_xgmac_tx_enable(struct xgene_enet_pdata *pdata)
+{
+	u32 data;
+
+	xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+	xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data | HSTTFEN);
+}
+
+static void xgene_xgmac_rx_disable(struct xgene_enet_pdata *pdata)
+{
+	u32 data;
+
+	xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+	xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data & ~HSTRFEN);
+}
+
+static void xgene_xgmac_tx_disable(struct xgene_enet_pdata *pdata)
+{
+	u32 data;
+
+	xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+	xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data & ~HSTTFEN);
+}
+
+static void xgene_enet_reset(struct xgene_enet_pdata *pdata)
+{
+	clk_prepare_enable(pdata->clk);
+	clk_disable_unprepare(pdata->clk);
+	clk_prepare_enable(pdata->clk);
+
+	xgene_enet_ecc_init(pdata);
+	xgene_enet_config_ring_if_assoc(pdata);
+}
+
+static void xgene_enet_xgcle_bypass(struct xgene_enet_pdata *pdata,
+				    u32 dst_ring_num, u16 bufpool_id)
+{
+	u32 cb, fpsel;
+
+	xgene_enet_rd_csr(pdata, XCLE_BYPASS_REG0_ADDR, &cb);
+	cb |= CFG_CLE_BYPASS_EN0;
+	CFG_CLE_IP_PROTOCOL0_SET(&cb, 3);
+	xgene_enet_wr_csr(pdata, XCLE_BYPASS_REG0_ADDR, cb);
+
+	fpsel = xgene_enet_ring_bufnum(bufpool_id) - 0x20;
+	xgene_enet_rd_csr(pdata, XCLE_BYPASS_REG1_ADDR, &cb);
+	CFG_CLE_DSTQID0_SET(&cb, dst_ring_num);
+	CFG_CLE_FPSEL0_SET(&cb, fpsel);
+	xgene_enet_wr_csr(pdata, XCLE_BYPASS_REG1_ADDR, cb);
+}
+
+static void xgene_enet_shutdown(struct xgene_enet_pdata *pdata)
+{
+	clk_disable_unprepare(pdata->clk);
+}
+
+void xgene_enet_link_state(struct work_struct *work)
+{
+	struct xgene_enet_pdata *pdata = container_of(to_delayed_work(work),
+					 struct xgene_enet_pdata, link_work);
+	struct net_device *ndev = pdata->ndev;
+	u32 link_status, poll_interval;
+
+	link_status = xgene_enet_link_status(pdata);
+	if (link_status) {
+		if (!netif_carrier_ok(ndev)) {
+			netif_carrier_on(ndev);
+			xgene_xgmac_init(pdata);
+			xgene_xgmac_rx_enable(pdata);
+			xgene_xgmac_tx_enable(pdata);
+			netdev_info(ndev, "Link is Up - 10Gbps\n");
+		}
+		poll_interval = PHY_POLL_LINK_ON;
+	} else {
+		if (netif_carrier_ok(ndev)) {
+			xgene_xgmac_rx_disable(pdata);
+			xgene_xgmac_tx_disable(pdata);
+			netif_carrier_off(ndev);
+			netdev_info(ndev, "Link is Down\n");
+		}
+		poll_interval = PHY_POLL_LINK_OFF;
+	}
+
+	schedule_delayed_work(&pdata->link_work, poll_interval);
+}
+
+struct xgene_mac_ops xgene_xgmac_ops = {
+	.init = xgene_xgmac_init,
+	.reset = xgene_xgmac_reset,
+	.rx_enable = xgene_xgmac_rx_enable,
+	.tx_enable = xgene_xgmac_tx_enable,
+	.rx_disable = xgene_xgmac_rx_disable,
+	.tx_disable = xgene_xgmac_tx_disable,
+	.set_mac_addr = xgene_xgmac_set_mac_addr,
+};
+
+struct xgene_port_ops xgene_xgport_ops = {
+	.reset = xgene_enet_reset,
+	.cle_bypass = xgene_enet_xgcle_bypass,
+	.shutdown = xgene_enet_shutdown,
+};

drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h

@@ -0,0 +1,57 @@
+/* Applied Micro X-Gene SoC Ethernet Driver
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
+ *	    Keyur Chudgar <kchudgar@apm.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __XGENE_ENET_XGMAC_H__
+#define __XGENE_ENET_XGMAC_H__
+
+#define BLOCK_AXG_MAC_OFFSET		0x0800
+#define BLOCK_AXG_MAC_CSR_OFFSET	0x2000
+
+#define AXGMAC_CONFIG_0			0x0000
+#define AXGMAC_CONFIG_1			0x0004
+#define HSTMACRST			BIT(31)
+#define HSTTCTLEN			BIT(31)
+#define HSTTFEN				BIT(30)
+#define HSTRCTLEN			BIT(29)
+#define HSTRFEN				BIT(28)
+#define HSTPPEN				BIT(7)
+#define HSTDRPLT64			BIT(5)
+#define HSTLENCHK			BIT(3)
+#define HSTMACADR_LSW_ADDR		0x0010
+#define HSTMACADR_MSW_ADDR		0x0014
+#define HSTMAXFRAME_LENGTH_ADDR		0x0020
+
+#define XG_RSIF_CONFIG_REG_ADDR		0x00a0
+#define XCLE_BYPASS_REG0_ADDR           0x0160
+#define XCLE_BYPASS_REG1_ADDR           0x0164
+#define XG_CFG_BYPASS_ADDR		0x0204
+#define XG_LINK_STATUS_ADDR		0x0228
+#define XG_ENET_SPARE_CFG_REG_ADDR	0x040c
+#define XG_ENET_SPARE_CFG_REG_1_ADDR	0x0410
+#define XGENET_RX_DV_GATE_REG_0_ADDR	0x0804
+
+#define PHY_POLL_LINK_ON	(10 * HZ)
+#define PHY_POLL_LINK_OFF	(PHY_POLL_LINK_ON / 5)
+
+void xgene_enet_link_state(struct work_struct *work);
+extern struct xgene_mac_ops xgene_xgmac_ops;
+extern struct xgene_port_ops xgene_xgport_ops;
+
+#endif /* __XGENE_ENET_XGMAC_H__ */

drivers/net/ethernet/broadcom/bcmsysport.c

@@ -436,7 +436,8 @@ static int bcm_sysport_set_wol(struct net_device *dev,
 	/* Flag the device and relevant IRQ as wakeup capable */
 	if (wol->wolopts) {
 		device_set_wakeup_enable(kdev, 1);
-		enable_irq_wake(priv->wol_irq);
+		if (priv->wol_irq_disabled)
+			enable_irq_wake(priv->wol_irq);
 		priv->wol_irq_disabled = 0;
 	} else {
 		device_set_wakeup_enable(kdev, 0);

drivers/net/ethernet/broadcom/genet/bcmgenet.c

@@ -1285,11 +1285,6 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_priv *priv,
 		cb = &priv->rx_cbs[priv->rx_read_ptr];
 		skb = cb->skb;
 
-		rxpktprocessed++;
-
-		priv->rx_read_ptr++;
-		priv->rx_read_ptr &= (priv->num_rx_bds - 1);
-
 		/* We do not have a backing SKB, so we do not have a
 		 * corresponding DMA mapping for this incoming packet since
 		 * bcmgenet_rx_refill always either has both skb and mapping or
@@ -1404,6 +1399,10 @@ refill:
 		err = bcmgenet_rx_refill(priv, cb);
 		if (err)
 			netif_err(priv, rx_err, dev, "Rx refill failed\n");
+
+		rxpktprocessed++;
+		priv->rx_read_ptr++;
+		priv->rx_read_ptr &= (priv->num_rx_bds - 1);
 	}
 
 	return rxpktprocessed;

drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c

@@ -86,7 +86,9 @@ int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 	/* Flag the device and relevant IRQ as wakeup capable */
 	if (wol->wolopts) {
 		device_set_wakeup_enable(kdev, 1);
-		enable_irq_wake(priv->wol_irq);
+		/* Avoid unbalanced enable_irq_wake calls */
+		if (priv->wol_irq_disabled)
+			enable_irq_wake(priv->wol_irq);
 		priv->wol_irq_disabled = false;
 	} else {
 		device_set_wakeup_enable(kdev, 0);

drivers/net/ethernet/chelsio/cxgb4/cxgb4.h

@@ -968,7 +968,7 @@ void t4_intr_enable(struct adapter *adapter);
 void t4_intr_disable(struct adapter *adapter);
 int t4_slow_intr_handler(struct adapter *adapter);
 
-int t4_wait_dev_ready(struct adapter *adap);
+int t4_wait_dev_ready(void __iomem *regs);
 int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port,
 		  struct link_config *lc);
 int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port);

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

@@ -6137,7 +6137,7 @@ static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev)
 	pci_save_state(pdev);
 	pci_cleanup_aer_uncorrect_error_status(pdev);
 
-	if (t4_wait_dev_ready(adap) < 0)
+	if (t4_wait_dev_ready(adap->regs) < 0)
 		return PCI_ERS_RESULT_DISCONNECT;
 	if (t4_fw_hello(adap, adap->fn, adap->fn, MASTER_MUST, NULL) < 0)
 		return PCI_ERS_RESULT_DISCONNECT;
@@ -6530,6 +6530,10 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto out_disable_device;
 	}
 
+	err = t4_wait_dev_ready(regs);
+	if (err < 0)
+		goto out_unmap_bar0;
+
 	/* We control everything through one PF */
 	func = SOURCEPF_GET(readl(regs + PL_WHOAMI));
 	if (func != ent->driver_data) {

drivers/net/ethernet/chelsio/cxgb4/sge.c

@@ -1123,7 +1123,10 @@ out_free:	dev_kfree_skb_any(skb);
 		lso->c.ipid_ofst = htons(0);
 		lso->c.mss = htons(ssi->gso_size);
 		lso->c.seqno_offset = htonl(0);
-		lso->c.len = htonl(skb->len);
+		if (is_t4(adap->params.chip))
+			lso->c.len = htonl(skb->len);
+		else
+			lso->c.len = htonl(LSO_T5_XFER_SIZE(skb->len));
 		cpl = (void *)(lso + 1);
 		cntrl = TXPKT_CSUM_TYPE(v6 ? TX_CSUM_TCPIP6 : TX_CSUM_TCPIP) |
 			TXPKT_IPHDR_LEN(l3hdr_len) |

drivers/net/ethernet/chelsio/cxgb4/t4_hw.c

@@ -3845,12 +3845,19 @@ static void init_link_config(struct link_config *lc, unsigned int caps)
 	}
 }
 
-int t4_wait_dev_ready(struct adapter *adap)
+#define CIM_PF_NOACCESS 0xeeeeeeee
+
+int t4_wait_dev_ready(void __iomem *regs)
 {
-	if (t4_read_reg(adap, PL_WHOAMI) != 0xffffffff)
+	u32 whoami;
+
+	whoami = readl(regs + PL_WHOAMI);
+	if (whoami != 0xffffffff && whoami != CIM_PF_NOACCESS)
 		return 0;
+
 	msleep(500);
-	return t4_read_reg(adap, PL_WHOAMI) != 0xffffffff ? 0 : -EIO;
+	whoami = readl(regs + PL_WHOAMI);
+	return (whoami != 0xffffffff && whoami != CIM_PF_NOACCESS ? 0 : -EIO);
 }
 
 struct flash_desc {
@@ -3919,10 +3926,6 @@ int t4_prep_adapter(struct adapter *adapter)
 	uint16_t device_id;
 	u32 pl_rev;
 
-	ret = t4_wait_dev_ready(adapter);
-	if (ret < 0)
-		return ret;
-
 	get_pci_mode(adapter, &adapter->params.pci);
 	pl_rev = G_REV(t4_read_reg(adapter, PL_REV));
 

drivers/net/ethernet/chelsio/cxgb4/t4_msg.h

@@ -527,6 +527,7 @@ struct cpl_tx_pkt_lso_core {
 #define LSO_LAST_SLICE    (1 << 22)
 #define LSO_FIRST_SLICE   (1 << 23)
 #define LSO_OPCODE(x)     ((x) << 24)
+#define LSO_T5_XFER_SIZE(x) ((x) << 0)
 	__be16 ipid_ofst;
 	__be16 mss;
 	__be32 seqno_offset;

drivers/net/ethernet/chelsio/cxgb4/t4_regs.h

@@ -72,9 +72,8 @@
 #define  PIDX_MASK   0x00003fffU
 #define  PIDX_SHIFT  0
 #define  PIDX(x)     ((x) << PIDX_SHIFT)
-#define  S_PIDX_T5   0
-#define  M_PIDX_T5   0x1fffU
-#define  PIDX_T5(x)  (((x) >> S_PIDX_T5) & M_PIDX_T5)
+#define  PIDX_SHIFT_T5   0
+#define  PIDX_T5(x)  ((x) << PIDX_SHIFT_T5)
 
 
 #define SGE_TIMERREGS	6

drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c

@@ -163,15 +163,19 @@ void t4vf_os_link_changed(struct adapter *adapter, int pidx, int link_ok)
 		netif_carrier_on(dev);
 
 		switch (pi->link_cfg.speed) {
-		case SPEED_10000:
+		case 40000:
+			s = "40Gbps";
+			break;
+
+		case 10000:
 			s = "10Gbps";
 			break;
 
-		case SPEED_1000:
+		case 1000:
 			s = "1000Mbps";
 			break;
 
-		case SPEED_100:
+		case 100:
 			s = "100Mbps";
 			break;
 
@@ -2351,7 +2355,7 @@ static void cfg_queues(struct adapter *adapter)
 		struct port_info *pi = adap2pinfo(adapter, pidx);
 
 		pi->first_qset = qidx;
-		pi->nqsets = is_10g_port(&pi->link_cfg) ? q10g : 1;
+		pi->nqsets = is_x_10g_port(&pi->link_cfg) ? q10g : 1;
 		qidx += pi->nqsets;
 	}
 	s->ethqsets = qidx;

drivers/net/ethernet/chelsio/cxgb4vf/sge.c

@@ -1208,7 +1208,10 @@ int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 		lso->ipid_ofst = cpu_to_be16(0);
 		lso->mss = cpu_to_be16(ssi->gso_size);
 		lso->seqno_offset = cpu_to_be32(0);
-		lso->len = cpu_to_be32(skb->len);
+		if (is_t4(adapter->params.chip))
+			lso->len = cpu_to_be32(skb->len);
+		else
+			lso->len = cpu_to_be32(LSO_T5_XFER_SIZE(skb->len));
 
 		/*
 		 * Set up TX Packet CPL pointer, control word and perform

drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h

@@ -228,6 +228,12 @@ static inline bool is_10g_port(const struct link_config *lc)
 	return (lc->supported & SUPPORTED_10000baseT_Full) != 0;
 }
 
+static inline bool is_x_10g_port(const struct link_config *lc)
+{
+	return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0 ||
+		(lc->supported & FW_PORT_CAP_SPEED_40G) != 0;
+}
+
 static inline unsigned int core_ticks_per_usec(const struct adapter *adapter)
 {
 	return adapter->params.vpd.cclk / 1000;

drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c

@@ -327,6 +327,8 @@ int t4vf_port_init(struct adapter *adapter, int pidx)
 		v |= SUPPORTED_1000baseT_Full;
 	if (word & FW_PORT_CAP_SPEED_10G)
 		v |= SUPPORTED_10000baseT_Full;
+	if (word & FW_PORT_CAP_SPEED_40G)
+		v |= SUPPORTED_40000baseSR4_Full;
 	if (word & FW_PORT_CAP_ANEG)
 		v |= SUPPORTED_Autoneg;
 	init_link_config(&pi->link_cfg, v);
@@ -1352,11 +1354,13 @@ int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl)
 		if (word & FW_PORT_CMD_TXPAUSE)
 			fc |= PAUSE_TX;
 		if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
-			speed = SPEED_100;
+			speed = 100;
 		else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
-			speed = SPEED_1000;
+			speed = 1000;
 		else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
-			speed = SPEED_10000;
+			speed = 10000;
+		else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_40G))
+			speed = 40000;
 
 		/*
 		 * Scan all of our "ports" (Virtual Interfaces) looking for

drivers/net/ethernet/freescale/fs_enet/mac-fcc.c

@@ -125,7 +125,7 @@ out:
 }
 
 #define FCC_NAPI_RX_EVENT_MSK	(FCC_ENET_RXF | FCC_ENET_RXB)
-#define FCC_NAPI_TX_EVENT_MSK	(FCC_ENET_TXF | FCC_ENET_TXB)
+#define FCC_NAPI_TX_EVENT_MSK	(FCC_ENET_TXB)
 #define FCC_RX_EVENT		(FCC_ENET_RXF)
 #define FCC_TX_EVENT		(FCC_ENET_TXB)
 #define FCC_ERR_EVENT_MSK	(FCC_ENET_TXE)

drivers/net/ethernet/freescale/fs_enet/mac-scc.c

@@ -116,7 +116,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 }
 
 #define SCC_NAPI_RX_EVENT_MSK	(SCCE_ENET_RXF | SCCE_ENET_RXB)
-#define SCC_NAPI_TX_EVENT_MSK	(SCCE_ENET_TXF | SCCE_ENET_TXB)
+#define SCC_NAPI_TX_EVENT_MSK	(SCCE_ENET_TXB)
 #define SCC_RX_EVENT		(SCCE_ENET_RXF)
 #define SCC_TX_EVENT		(SCCE_ENET_TXB)
 #define SCC_ERR_EVENT_MSK	(SCCE_ENET_TXE | SCCE_ENET_BSY)

drivers/net/ethernet/freescale/fsl_pq_mdio.c

@@ -28,7 +28,9 @@
 #include <linux/of_device.h>
 
 #include <asm/io.h>
+#if IS_ENABLED(CONFIG_UCC_GETH)
 #include <asm/ucc.h>	/* for ucc_set_qe_mux_mii_mng() */
+#endif
 
 #include "gianfar.h"
 
@@ -102,19 +104,22 @@ static int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
 {
 	struct fsl_pq_mdio_priv *priv = bus->priv;
 	struct fsl_pq_mii __iomem *regs = priv->regs;
-	u32 status;
+	unsigned int timeout;
 
 	/* Set the PHY address and the register address we want to write */
-	out_be32(&regs->miimadd, (mii_id << 8) | regnum);
+	iowrite32be((mii_id << 8) | regnum, &regs->miimadd);
 
 	/* Write out the value we want */
-	out_be32(&regs->miimcon, value);
+	iowrite32be(value, &regs->miimcon);
 
 	/* Wait for the transaction to finish */
-	status = spin_event_timeout(!(in_be32(&regs->miimind) &	MIIMIND_BUSY),
-				    MII_TIMEOUT, 0);
+	timeout = MII_TIMEOUT;
+	while ((ioread32be(&regs->miimind) & MIIMIND_BUSY) && timeout) {
+		cpu_relax();
+		timeout--;
+	}
 
-	return status ? 0 : -ETIMEDOUT;
+	return timeout ? 0 : -ETIMEDOUT;
 }
 
 /*
@@ -131,25 +136,29 @@ static int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
 {
 	struct fsl_pq_mdio_priv *priv = bus->priv;
 	struct fsl_pq_mii __iomem *regs = priv->regs;
-	u32 status;
+	unsigned int timeout;
 	u16 value;
 
 	/* Set the PHY address and the register address we want to read */
-	out_be32(&regs->miimadd, (mii_id << 8) | regnum);
+	iowrite32be((mii_id << 8) | regnum, &regs->miimadd);
 
 	/* Clear miimcom, and then initiate a read */
-	out_be32(&regs->miimcom, 0);
-	out_be32(&regs->miimcom, MII_READ_COMMAND);
+	iowrite32be(0, &regs->miimcom);
+	iowrite32be(MII_READ_COMMAND, &regs->miimcom);
 
 	/* Wait for the transaction to finish, normally less than 100us */
-	status = spin_event_timeout(!(in_be32(&regs->miimind) &
-				    (MIIMIND_NOTVALID | MIIMIND_BUSY)),
-				    MII_TIMEOUT, 0);
-	if (!status)
+	timeout = MII_TIMEOUT;
+	while ((ioread32be(&regs->miimind) &
+	       (MIIMIND_NOTVALID | MIIMIND_BUSY)) && timeout) {
+		cpu_relax();
+		timeout--;
+	}
+
+	if (!timeout)
 		return -ETIMEDOUT;
 
 	/* Grab the value of the register from miimstat */
-	value = in_be32(&regs->miimstat);
+	value = ioread32be(&regs->miimstat);
 
 	dev_dbg(&bus->dev, "read %04x from address %x/%x\n", value, mii_id, regnum);
 	return value;
@@ -160,23 +169,26 @@ static int fsl_pq_mdio_reset(struct mii_bus *bus)
 {
 	struct fsl_pq_mdio_priv *priv = bus->priv;
 	struct fsl_pq_mii __iomem *regs = priv->regs;
-	u32 status;
+	unsigned int timeout;
 
 	mutex_lock(&bus->mdio_lock);
 
 	/* Reset the management interface */
-	out_be32(&regs->miimcfg, MIIMCFG_RESET);
+	iowrite32be(MIIMCFG_RESET, &regs->miimcfg);
 
 	/* Setup the MII Mgmt clock speed */
-	out_be32(&regs->miimcfg, MIIMCFG_INIT_VALUE);
+	iowrite32be(MIIMCFG_INIT_VALUE, &regs->miimcfg);
 
 	/* Wait until the bus is free */
-	status = spin_event_timeout(!(in_be32(&regs->miimind) &	MIIMIND_BUSY),
-				    MII_TIMEOUT, 0);
+	timeout = MII_TIMEOUT;
+	while ((ioread32be(&regs->miimind) & MIIMIND_BUSY) && timeout) {
+		cpu_relax();
+		timeout--;
+	}
 
 	mutex_unlock(&bus->mdio_lock);
 
-	if (!status) {
+	if (!timeout) {
 		dev_err(&bus->dev, "timeout waiting for MII bus\n");
 		return -EBUSY;
 	}
@@ -433,7 +445,7 @@ static int fsl_pq_mdio_probe(struct platform_device *pdev)
 
 			tbipa = data->get_tbipa(priv->map);
 
-			out_be32(tbipa, be32_to_cpup(prop));
+			iowrite32be(be32_to_cpup(prop), tbipa);
 		}
 	}
 

drivers/net/ethernet/freescale/gianfar.c

@@ -88,8 +88,10 @@
 #include <linux/net_tstamp.h>
 
 #include <asm/io.h>
+#ifdef CONFIG_PPC
 #include <asm/reg.h>
 #include <asm/mpc85xx.h>
+#endif
 #include <asm/irq.h>
 #include <asm/uaccess.h>
 #include <linux/module.h>
@@ -100,6 +102,8 @@
 #include <linux/phy_fixed.h>
 #include <linux/of.h>
 #include <linux/of_net.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include "gianfar.h"
 
@@ -161,7 +165,7 @@ static void gfar_init_rxbdp(struct gfar_priv_rx_q *rx_queue, struct rxbd8 *bdp,
 	if (bdp == rx_queue->rx_bd_base + rx_queue->rx_ring_size - 1)
 		lstatus |= BD_LFLAG(RXBD_WRAP);
 
-	eieio();
+	gfar_wmb();
 
 	bdp->lstatus = lstatus;
 }
@@ -1061,6 +1065,7 @@ static void gfar_init_filer_table(struct gfar_private *priv)
 	}
 }
 
+#ifdef CONFIG_PPC
 static void __gfar_detect_errata_83xx(struct gfar_private *priv)
 {
 	unsigned int pvr = mfspr(SPRN_PVR);
@@ -1093,6 +1098,7 @@ static void __gfar_detect_errata_85xx(struct gfar_private *priv)
 	    ((SVR_SOC_VER(svr) == SVR_P2010) && (SVR_REV(svr) < 0x20)))
 		priv->errata |= GFAR_ERRATA_76; /* aka eTSEC 20 */
 }
+#endif
 
 static void gfar_detect_errata(struct gfar_private *priv)
 {
@@ -1101,10 +1107,12 @@ static void gfar_detect_errata(struct gfar_private *priv)
 	/* no plans to fix */
 	priv->errata |= GFAR_ERRATA_A002;
 
+#ifdef CONFIG_PPC
 	if (pvr_version_is(PVR_VER_E500V1) || pvr_version_is(PVR_VER_E500V2))
 		__gfar_detect_errata_85xx(priv);
 	else /* non-mpc85xx parts, i.e. e300 core based */
 		__gfar_detect_errata_83xx(priv);
+#endif
 
 	if (priv->errata)
 		dev_info(dev, "enabled errata workarounds, flags: 0x%x\n",
@@ -1754,26 +1762,32 @@ static void gfar_halt_nodisable(struct gfar_private *priv)
 {
 	struct gfar __iomem *regs = priv->gfargrp[0].regs;
 	u32 tempval;
+	unsigned int timeout;
+	int stopped;
 
 	gfar_ints_disable(priv);
 
+	if (gfar_is_dma_stopped(priv))
+		return;
+
 	/* Stop the DMA, and wait for it to stop */
 	tempval = gfar_read(&regs->dmactrl);
-	if ((tempval & (DMACTRL_GRS | DMACTRL_GTS)) !=
-	    (DMACTRL_GRS | DMACTRL_GTS)) {
-		int ret;
-
-		tempval |= (DMACTRL_GRS | DMACTRL_GTS);
-		gfar_write(&regs->dmactrl, tempval);
+	tempval |= (DMACTRL_GRS | DMACTRL_GTS);
+	gfar_write(&regs->dmactrl, tempval);
 
-		do {
-			ret = spin_event_timeout(((gfar_read(&regs->ievent) &
-				 (IEVENT_GRSC | IEVENT_GTSC)) ==
-				 (IEVENT_GRSC | IEVENT_GTSC)), 1000000, 0);
-			if (!ret && !(gfar_read(&regs->ievent) & IEVENT_GRSC))
-				ret = __gfar_is_rx_idle(priv);
-		} while (!ret);
+retry:
+	timeout = 1000;
+	while (!(stopped = gfar_is_dma_stopped(priv)) && timeout) {
+		cpu_relax();
+		timeout--;
 	}
+
+	if (!timeout)
+		stopped = gfar_is_dma_stopped(priv);
+
+	if (!stopped && !gfar_is_rx_dma_stopped(priv) &&
+	    !__gfar_is_rx_idle(priv))
+		goto retry;
 }
 
 /* Halt the receive and transmit queues */
@@ -2357,18 +2371,11 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	 */
 	spin_lock_irqsave(&tx_queue->txlock, flags);
 
-	/* The powerpc-specific eieio() is used, as wmb() has too strong
-	 * semantics (it requires synchronization between cacheable and
-	 * uncacheable mappings, which eieio doesn't provide and which we
-	 * don't need), thus requiring a more expensive sync instruction.  At
-	 * some point, the set of architecture-independent barrier functions
-	 * should be expanded to include weaker barriers.
-	 */
-	eieio();
+	gfar_wmb();
 
 	txbdp_start->lstatus = lstatus;
 
-	eieio(); /* force lstatus write before tx_skbuff */
+	gfar_wmb(); /* force lstatus write before tx_skbuff */
 
 	tx_queue->tx_skbuff[tx_queue->skb_curtx] = skb;
 
@@ -3240,22 +3247,21 @@ static void gfar_set_mac_for_addr(struct net_device *dev, int num,
 {
 	struct gfar_private *priv = netdev_priv(dev);
 	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	int idx;
-	char tmpbuf[ETH_ALEN];
 	u32 tempval;
 	u32 __iomem *macptr = &regs->macstnaddr1;
 
 	macptr += num*2;
 
-	/* Now copy it into the mac registers backwards, cuz
-	 * little endian is silly
+	/* For a station address of 0x12345678ABCD in transmission
+	 * order (BE), MACnADDR1 is set to 0xCDAB7856 and
+	 * MACnADDR2 is set to 0x34120000.
 	 */
-	for (idx = 0; idx < ETH_ALEN; idx++)
-		tmpbuf[ETH_ALEN - 1 - idx] = addr[idx];
+	tempval = (addr[5] << 24) | (addr[4] << 16) |
+		  (addr[3] << 8)  |  addr[2];
 
-	gfar_write(macptr, *((u32 *) (tmpbuf)));
+	gfar_write(macptr, tempval);
 
-	tempval = *((u32 *) (tmpbuf + 4));
+	tempval = (addr[1] << 24) | (addr[0] << 16);
 
 	gfar_write(macptr+1, tempval);
 }

drivers/net/ethernet/freescale/gianfar.h

@@ -1226,6 +1226,37 @@ static inline void gfar_write_isrg(struct gfar_private *priv)
 	}
 }
 
+static inline int gfar_is_dma_stopped(struct gfar_private *priv)
+{
+	struct gfar __iomem *regs = priv->gfargrp[0].regs;
+
+	return ((gfar_read(&regs->ievent) & (IEVENT_GRSC | IEVENT_GTSC)) ==
+	       (IEVENT_GRSC | IEVENT_GTSC));
+}
+
+static inline int gfar_is_rx_dma_stopped(struct gfar_private *priv)
+{
+	struct gfar __iomem *regs = priv->gfargrp[0].regs;
+
+	return gfar_read(&regs->ievent) & IEVENT_GRSC;
+}
+
+static inline void gfar_wmb(void)
+{
+#if defined(CONFIG_PPC)
+	/* The powerpc-specific eieio() is used, as wmb() has too strong
+	 * semantics (it requires synchronization between cacheable and
+	 * uncacheable mappings, which eieio() doesn't provide and which we
+	 * don't need), thus requiring a more expensive sync instruction.  At
+	 * some point, the set of architecture-independent barrier functions
+	 * should be expanded to include weaker barriers.
+	 */
+	eieio();
+#else
+	wmb(); /* order write acesses for BD (or FCB) fields */
+#endif
+}
+
 irqreturn_t gfar_receive(int irq, void *dev_id);
 int startup_gfar(struct net_device *dev);
 void stop_gfar(struct net_device *dev);

drivers/net/ethernet/intel/Kconfig

@@ -304,6 +304,7 @@ config FM10K
 	tristate "Intel(R) FM10000 Ethernet Switch Host Interface Support"
 	default n
 	depends on PCI_MSI
+	select PTP_1588_CLOCK
 	---help---
 	  This driver supports Intel(R) FM10000 Ethernet Switch Host
 	  Interface.  For more information on how to identify your adapter,

drivers/net/ethernet/intel/fm10k/fm10k_main.c

@@ -219,11 +219,10 @@ static bool fm10k_can_reuse_rx_page(struct fm10k_rx_buffer *rx_buffer,
 	/* flip page offset to other buffer */
 	rx_buffer->page_offset ^= FM10K_RX_BUFSZ;
 
-	/* since we are the only owner of the page and we need to
-	 * increment it, just set the value to 2 in order to avoid
-	 * an unnecessary locked operation
+	/* Even if we own the page, we are not allowed to use atomic_set()
+	 * This would break get_page_unless_zero() users.
 	 */
-	atomic_set(&page->_count, 2);
+	atomic_inc(&page->_count);
 #else
 	/* move offset up to the next cache line */
 	rx_buffer->page_offset += truesize;

drivers/net/ethernet/intel/igb/igb_main.c

@@ -6545,11 +6545,10 @@ static bool igb_can_reuse_rx_page(struct igb_rx_buffer *rx_buffer,
 	/* flip page offset to other buffer */
 	rx_buffer->page_offset ^= IGB_RX_BUFSZ;
 
-	/* since we are the only owner of the page and we need to
-	 * increment it, just set the value to 2 in order to avoid
-	 * an unnecessary locked operation
+	/* Even if we own the page, we are not allowed to use atomic_set()
+	 * This would break get_page_unless_zero() users.
 	 */
-	atomic_set(&page->_count, 2);
+	atomic_inc(&page->_count);
 #else
 	/* move offset up to the next cache line */
 	rx_buffer->page_offset += truesize;

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

@@ -1865,12 +1865,10 @@ static bool ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring,
 	/* flip page offset to other buffer */
 	rx_buffer->page_offset ^= truesize;
 
-	/*
-	 * since we are the only owner of the page and we need to
-	 * increment it, just set the value to 2 in order to avoid
-	 * an unecessary locked operation
+	/* Even if we own the page, we are not allowed to use atomic_set()
+	 * This would break get_page_unless_zero() users.
 	 */
-	atomic_set(&page->_count, 2);
+	atomic_inc(&page->_count);
 #else
 	/* move offset up to the next cache line */
 	rx_buffer->page_offset += truesize;

drivers/net/ethernet/marvell/Kconfig

@@ -64,7 +64,8 @@ config MVPP2
 
 config PXA168_ETH
 	tristate "Marvell pxa168 ethernet support"
-	depends on (CPU_PXA168 || ARCH_BERLIN || COMPILE_TEST) && HAS_IOMEM
+	depends on HAS_IOMEM && HAS_DMA
+	depends on CPU_PXA168 || ARCH_BERLIN || COMPILE_TEST
 	select PHYLIB
 	---help---
 	  This driver supports the pxa168 Ethernet ports.

drivers/net/ethernet/mellanox/mlx4/en_rx.c

@@ -76,10 +76,10 @@ static int mlx4_alloc_pages(struct mlx4_en_priv *priv,
 	page_alloc->dma = dma;
 	page_alloc->page_offset = frag_info->frag_align;
 	/* Not doing get_page() for each frag is a big win
-	 * on asymetric workloads.
+	 * on asymetric workloads. Note we can not use atomic_set().
 	 */
-	atomic_set(&page->_count,
-		   page_alloc->page_size / frag_info->frag_stride);
+	atomic_add(page_alloc->page_size / frag_info->frag_stride - 1,
+		   &page->_count);
 	return 0;
 }
 

drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c

@@ -134,7 +134,7 @@ static void dwmac1000_set_filter(struct mac_device_info *hw,
 	void __iomem *ioaddr = (void __iomem *)dev->base_addr;
 	unsigned int value = 0;
 	unsigned int perfect_addr_number = hw->unicast_filter_entries;
-	u32 mc_filter[2];
+	u32 mc_filter[8];
 	int mcbitslog2 = hw->mcast_bits_log2;
 
 	pr_debug("%s: # mcasts %d, # unicast %d\n", __func__,
@@ -182,7 +182,7 @@ static void dwmac1000_set_filter(struct mac_device_info *hw,
 		struct netdev_hw_addr *ha;
 
 		netdev_for_each_uc_addr(ha, dev) {
-			stmmac_get_mac_addr(ioaddr, ha->addr,
+			stmmac_set_mac_addr(ioaddr, ha->addr,
 					    GMAC_ADDR_HIGH(reg),
 					    GMAC_ADDR_LOW(reg));
 			reg++;

drivers/net/macvlan.c

@@ -260,7 +260,7 @@ static void macvlan_broadcast(struct sk_buff *skb,
 					mode == MACVLAN_MODE_BRIDGE) ?:
 				      netif_rx_ni(nskb);
 			macvlan_count_rx(vlan, skb->len + ETH_HLEN,
-					 err == NET_RX_SUCCESS, 1);
+					 err == NET_RX_SUCCESS, true);
 		}
 	}
 }
@@ -379,7 +379,7 @@ static void macvlan_forward_source_one(struct sk_buff *skb,
 	nskb->pkt_type = PACKET_HOST;
 
 	ret = netif_rx(nskb);
-	macvlan_count_rx(vlan, len, ret == NET_RX_SUCCESS, 0);
+	macvlan_count_rx(vlan, len, ret == NET_RX_SUCCESS, false);
 }
 
 static void macvlan_forward_source(struct sk_buff *skb,
@@ -407,7 +407,8 @@ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb)
 	const struct macvlan_dev *src;
 	struct net_device *dev;
 	unsigned int len = 0;
-	int ret = NET_RX_DROP;
+	int ret;
+	rx_handler_result_t handle_res;
 
 	port = macvlan_port_get_rcu(skb->dev);
 	if (is_multicast_ether_addr(eth->h_dest)) {
@@ -423,6 +424,7 @@ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb)
 			vlan = src;
 			ret = macvlan_broadcast_one(skb, vlan, eth, 0) ?:
 			      netif_rx(skb);
+			handle_res = RX_HANDLER_CONSUMED;
 			goto out;
 		}
 
@@ -448,17 +450,20 @@ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb)
 	}
 	len = skb->len + ETH_HLEN;
 	skb = skb_share_check(skb, GFP_ATOMIC);
-	if (!skb)
+	if (!skb) {
+		ret = NET_RX_DROP;
+		handle_res = RX_HANDLER_CONSUMED;
 		goto out;
+	}
 
 	skb->dev = dev;
 	skb->pkt_type = PACKET_HOST;
 
-	ret = netif_rx(skb);
-
+	ret = NET_RX_SUCCESS;
+	handle_res = RX_HANDLER_ANOTHER;
 out:
-	macvlan_count_rx(vlan, len, ret == NET_RX_SUCCESS, 0);
-	return RX_HANDLER_CONSUMED;
+	macvlan_count_rx(vlan, len, ret == NET_RX_SUCCESS, false);
+	return handle_res;
 }
 
 static int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev)

drivers/net/phy/micrel.c

@@ -26,6 +26,7 @@
 #include <linux/phy.h>
 #include <linux/micrel_phy.h>
 #include <linux/of.h>
+#include <linux/clk.h>
 
 /* Operation Mode Strap Override */
 #define MII_KSZPHY_OMSO				0x16
@@ -72,9 +73,12 @@ static int ksz_config_flags(struct phy_device *phydev)
 {
 	int regval;
 
-	if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) {
+	if (phydev->dev_flags & (MICREL_PHY_50MHZ_CLK | MICREL_PHY_25MHZ_CLK)) {
 		regval = phy_read(phydev, MII_KSZPHY_CTRL);
-		regval |= KSZ8051_RMII_50MHZ_CLK;
+		if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK)
+			regval |= KSZ8051_RMII_50MHZ_CLK;
+		else
+			regval &= ~KSZ8051_RMII_50MHZ_CLK;
 		return phy_write(phydev, MII_KSZPHY_CTRL, regval);
 	}
 	return 0;
@@ -440,6 +444,27 @@ ksz9021_wr_mmd_phyreg(struct phy_device *phydev, int ptrad, int devnum,
 {
 }
 
+static int ksz8021_probe(struct phy_device *phydev)
+{
+	struct clk *clk;
+
+	clk = devm_clk_get(&phydev->dev, "rmii-ref");
+	if (!IS_ERR(clk)) {
+		unsigned long rate = clk_get_rate(clk);
+
+		if (rate > 24500000 && rate < 25500000) {
+			phydev->dev_flags |= MICREL_PHY_25MHZ_CLK;
+		} else if (rate > 49500000 && rate < 50500000) {
+			phydev->dev_flags |= MICREL_PHY_50MHZ_CLK;
+		} else {
+			dev_err(&phydev->dev, "Clock rate out of range: %ld\n", rate);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
 static struct phy_driver ksphy_driver[] = {
 {
 	.phy_id		= PHY_ID_KS8737,
@@ -462,6 +487,7 @@ static struct phy_driver ksphy_driver[] = {
 	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause |
 			   SUPPORTED_Asym_Pause),
 	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+	.probe		= ksz8021_probe,
 	.config_init	= ksz8021_config_init,
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
@@ -477,6 +503,7 @@ static struct phy_driver ksphy_driver[] = {
 	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause |
 			   SUPPORTED_Asym_Pause),
 	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+	.probe		= ksz8021_probe,
 	.config_init	= ksz8021_config_init,
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,

drivers/net/usb/r8152.c

@@ -26,7 +26,7 @@
 #include <linux/mdio.h>
 
 /* Version Information */
-#define DRIVER_VERSION "v1.06.1 (2014/10/01)"
+#define DRIVER_VERSION "v1.07.0 (2014/10/09)"
 #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
 #define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
 #define MODULENAME "r8152"
@@ -566,6 +566,7 @@ struct r8152 {
 	spinlock_t rx_lock, tx_lock;
 	struct delayed_work schedule;
 	struct mii_if_info mii;
+	struct mutex control;	/* use for hw setting */
 
 	struct rtl_ops {
 		void (*init)(struct r8152 *);
@@ -942,15 +943,8 @@ static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
 	if (phy_id != R8152_PHY_ID)
 		return -EINVAL;
 
-	ret = usb_autopm_get_interface(tp->intf);
-	if (ret < 0)
-		goto out;
-
 	ret = r8152_mdio_read(tp, reg);
 
-	usb_autopm_put_interface(tp->intf);
-
-out:
 	return ret;
 }
 
@@ -965,12 +959,7 @@ void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
 	if (phy_id != R8152_PHY_ID)
 		return;
 
-	if (usb_autopm_get_interface(tp->intf) < 0)
-		return;
-
 	r8152_mdio_write(tp, reg, val);
-
-	usb_autopm_put_interface(tp->intf);
 }
 
 static int
@@ -989,12 +978,16 @@ static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
 	if (ret < 0)
 		goto out1;
 
+	mutex_lock(&tp->control);
+
 	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 
 	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
 	pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data);
 	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
 
+	mutex_unlock(&tp->control);
+
 	usb_autopm_put_interface(tp->intf);
 out1:
 	return ret;
@@ -2145,6 +2138,13 @@ static int rtl8152_set_features(struct net_device *dev,
 {
 	netdev_features_t changed = features ^ dev->features;
 	struct r8152 *tp = netdev_priv(dev);
+	int ret;
+
+	ret = usb_autopm_get_interface(tp->intf);
+	if (ret < 0)
+		goto out;
+
+	mutex_lock(&tp->control);
 
 	if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
 		if (features & NETIF_F_HW_VLAN_CTAG_RX)
@@ -2153,7 +2153,12 @@ static int rtl8152_set_features(struct net_device *dev,
 			rtl_rx_vlan_en(tp, false);
 	}
 
-	return 0;
+	mutex_unlock(&tp->control);
+
+	usb_autopm_put_interface(tp->intf);
+
+out:
+	return ret;
 }
 
 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
@@ -2851,6 +2856,11 @@ static void rtl_work_func_t(struct work_struct *work)
 	if (test_bit(RTL8152_UNPLUG, &tp->flags))
 		goto out1;
 
+	if (!mutex_trylock(&tp->control)) {
+		schedule_delayed_work(&tp->schedule, 0);
+		goto out1;
+	}
+
 	if (test_bit(RTL8152_LINK_CHG, &tp->flags))
 		set_carrier(tp);
 
@@ -2866,6 +2876,8 @@ static void rtl_work_func_t(struct work_struct *work)
 	if (test_bit(PHY_RESET, &tp->flags))
 		rtl_phy_reset(tp);
 
+	mutex_unlock(&tp->control);
+
 out1:
 	usb_autopm_put_interface(tp->intf);
 }
@@ -2885,6 +2897,8 @@ static int rtl8152_open(struct net_device *netdev)
 		goto out;
 	}
 
+	mutex_lock(&tp->control);
+
 	/* The WORK_ENABLE may be set when autoresume occurs */
 	if (test_bit(WORK_ENABLE, &tp->flags)) {
 		clear_bit(WORK_ENABLE, &tp->flags);
@@ -2913,6 +2927,8 @@ static int rtl8152_open(struct net_device *netdev)
 		free_all_mem(tp);
 	}
 
+	mutex_unlock(&tp->control);
+
 	usb_autopm_put_interface(tp->intf);
 
 out:
@@ -2933,6 +2949,8 @@ static int rtl8152_close(struct net_device *netdev)
 	if (res < 0) {
 		rtl_drop_queued_tx(tp);
 	} else {
+		mutex_lock(&tp->control);
+
 		/* The autosuspend may have been enabled and wouldn't
 		 * be disable when autoresume occurs, because the
 		 * netif_running() would be false.
@@ -2945,6 +2963,9 @@ static int rtl8152_close(struct net_device *netdev)
 		tasklet_disable(&tp->tl);
 		tp->rtl_ops.down(tp);
 		tasklet_enable(&tp->tl);
+
+		mutex_unlock(&tp->control);
+
 		usb_autopm_put_interface(tp->intf);
 	}
 
@@ -3169,6 +3190,8 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
 {
 	struct r8152 *tp = usb_get_intfdata(intf);
 
+	mutex_lock(&tp->control);
+
 	if (PMSG_IS_AUTO(message))
 		set_bit(SELECTIVE_SUSPEND, &tp->flags);
 	else
@@ -3188,6 +3211,8 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
 		tasklet_enable(&tp->tl);
 	}
 
+	mutex_unlock(&tp->control);
+
 	return 0;
 }
 
@@ -3195,6 +3220,8 @@ static int rtl8152_resume(struct usb_interface *intf)
 {
 	struct r8152 *tp = usb_get_intfdata(intf);
 
+	mutex_lock(&tp->control);
+
 	if (!test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
 		tp->rtl_ops.init(tp);
 		netif_device_attach(tp->netdev);
@@ -3220,6 +3247,8 @@ static int rtl8152_resume(struct usb_interface *intf)
 		usb_submit_urb(tp->intr_urb, GFP_KERNEL);
 	}
 
+	mutex_unlock(&tp->control);
+
 	return 0;
 }
 
@@ -3230,9 +3259,13 @@ static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 	if (usb_autopm_get_interface(tp->intf) < 0)
 		return;
 
+	mutex_lock(&tp->control);
+
 	wol->supported = WAKE_ANY;
 	wol->wolopts = __rtl_get_wol(tp);
 
+	mutex_unlock(&tp->control);
+
 	usb_autopm_put_interface(tp->intf);
 }
 
@@ -3245,9 +3278,13 @@ static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 	if (ret < 0)
 		goto out_set_wol;
 
+	mutex_lock(&tp->control);
+
 	__rtl_set_wol(tp, wol->wolopts);
 	tp->saved_wolopts = wol->wolopts & WAKE_ANY;
 
+	mutex_unlock(&tp->control);
+
 	usb_autopm_put_interface(tp->intf);
 
 out_set_wol:
@@ -3282,11 +3319,25 @@ static
 int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
 {
 	struct r8152 *tp = netdev_priv(netdev);
+	int ret;
 
 	if (!tp->mii.mdio_read)
 		return -EOPNOTSUPP;
 
-	return mii_ethtool_gset(&tp->mii, cmd);
+	ret = usb_autopm_get_interface(tp->intf);
+	if (ret < 0)
+		goto out;
+
+	mutex_lock(&tp->control);
+
+	ret = mii_ethtool_gset(&tp->mii, cmd);
+
+	mutex_unlock(&tp->control);
+
+	usb_autopm_put_interface(tp->intf);
+
+out:
+	return ret;
 }
 
 static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
@@ -3298,8 +3349,12 @@ static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 	if (ret < 0)
 		goto out;
 
+	mutex_lock(&tp->control);
+
 	ret = rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex);
 
+	mutex_unlock(&tp->control);
+
 	usb_autopm_put_interface(tp->intf);
 
 out:
@@ -3459,8 +3514,12 @@ rtl_ethtool_get_eee(struct net_device *net, struct ethtool_eee *edata)
 	if (ret < 0)
 		goto out;
 
+	mutex_lock(&tp->control);
+
 	ret = tp->rtl_ops.eee_get(tp, edata);
 
+	mutex_unlock(&tp->control);
+
 	usb_autopm_put_interface(tp->intf);
 
 out:
@@ -3477,10 +3536,14 @@ rtl_ethtool_set_eee(struct net_device *net, struct ethtool_eee *edata)
 	if (ret < 0)
 		goto out;
 
+	mutex_lock(&tp->control);
+
 	ret = tp->rtl_ops.eee_set(tp, edata);
 	if (!ret)
 		ret = mii_nway_restart(&tp->mii);
 
+	mutex_unlock(&tp->control);
+
 	usb_autopm_put_interface(tp->intf);
 
 out:
@@ -3522,7 +3585,9 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 		break;
 
 	case SIOCGMIIREG:
+		mutex_lock(&tp->control);
 		data->val_out = r8152_mdio_read(tp, data->reg_num);
+		mutex_unlock(&tp->control);
 		break;
 
 	case SIOCSMIIREG:
@@ -3530,7 +3595,9 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 			res = -EPERM;
 			break;
 		}
+		mutex_lock(&tp->control);
 		r8152_mdio_write(tp, data->reg_num, data->val_in);
+		mutex_unlock(&tp->control);
 		break;
 
 	default:
@@ -3723,6 +3790,7 @@ static int rtl8152_probe(struct usb_interface *intf,
 		goto out;
 
 	tasklet_init(&tp->tl, bottom_half, (unsigned long)tp);
+	mutex_init(&tp->control);
 	INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);
 
 	netdev->netdev_ops = &rtl8152_netdev_ops;

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -294,7 +294,6 @@ struct ath_tx_control {
  *  (axq_qnum).
  */
 struct ath_tx {
-	u16 seq_no;
 	u32 txqsetup;
 	spinlock_t txbuflock;
 	struct list_head txbuf;
@@ -563,6 +562,7 @@ int ath_tx_init(struct ath_softc *sc, int nbufs);
 int ath_txq_update(struct ath_softc *sc, int qnum,
 		   struct ath9k_tx_queue_info *q);
 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
+void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 		 struct ath_tx_control *txctl);
 void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
@@ -592,6 +592,8 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
 struct ath_vif {
 	struct list_head list;
 
+	u16 seq_no;
+
 	/* BSS info */
 	u8 bssid[ETH_ALEN];
 	u16 aid;

drivers/net/wireless/ath/ath9k/beacon.c

@@ -144,16 +144,8 @@ static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw,
 	mgmt_hdr->u.beacon.timestamp = avp->tsf_adjust;
 
 	info = IEEE80211_SKB_CB(skb);
-	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
-		/*
-		 * TODO: make sure the seq# gets assigned properly (vs. other
-		 * TX frames)
-		 */
-		struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-		sc->tx.seq_no += 0x10;
-		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
-		hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
-	}
+
+	ath_assign_seq(common, skb);
 
 	if (vif->p2p)
 		ath9k_beacon_add_noa(sc, avp, skb);

drivers/net/wireless/ath/ath9k/htc_drv_init.c

@@ -464,6 +464,7 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 		return -ENOMEM;
 
 	ah->dev = priv->dev;
+	ah->hw = priv->hw;
 	ah->hw_version.devid = devid;
 	ah->hw_version.usbdev = drv_info;
 	ah->ah_flags |= AH_USE_EEPROM;

drivers/net/wireless/ath/ath9k/main.c

@@ -2332,7 +2332,7 @@ static void ath9k_remove_chanctx(struct ieee80211_hw *hw,
 		conf->def.chan->center_freq);
 
 	ctx->assigned = false;
-	ctx->hw_queue_base = -1;
+	ctx->hw_queue_base = 0;
 	ath_chanctx_event(sc, NULL, ATH_CHANCTX_EVENT_UNASSIGN);
 
 	mutex_unlock(&sc->mutex);

drivers/net/wireless/ath/ath9k/tx99.c

@@ -54,6 +54,12 @@ static struct sk_buff *ath9k_build_tx99_skb(struct ath_softc *sc)
 	struct ieee80211_hdr *hdr;
 	struct ieee80211_tx_info *tx_info;
 	struct sk_buff *skb;
+	struct ath_vif *avp;
+
+	if (!sc->tx99_vif)
+		return NULL;
+
+	avp = (struct ath_vif *)sc->tx99_vif->drv_priv;
 
 	skb = alloc_skb(len, GFP_KERNEL);
 	if (!skb)
@@ -71,7 +77,7 @@ static struct sk_buff *ath9k_build_tx99_skb(struct ath_softc *sc)
 	memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN);
 	memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN);
 
-	hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
+	hdr->seq_ctrl |= cpu_to_le16(avp->seq_no);
 
 	tx_info = IEEE80211_SKB_CB(skb);
 	memset(tx_info, 0, sizeof(*tx_info));

drivers/net/wireless/ath/ath9k/xmit.c

@@ -2139,6 +2139,28 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
 	return bf;
 }
 
+void ath_assign_seq(struct ath_common *common, struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ath_vif *avp;
+
+	if (!(info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ))
+		return;
+
+	if (!vif)
+		return;
+
+	avp = (struct ath_vif *)vif->drv_priv;
+
+	if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+		avp->seq_no += 0x10;
+
+	hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+	hdr->seq_ctrl |= cpu_to_le16(avp->seq_no);
+}
+
 static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb,
 			  struct ath_tx_control *txctl)
 {
@@ -2162,17 +2184,7 @@ static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb,
 	if (info->control.hw_key)
 		frmlen += info->control.hw_key->icv_len;
 
-	/*
-	 * As a temporary workaround, assign seq# here; this will likely need
-	 * to be cleaned up to work better with Beacon transmission and virtual
-	 * BSSes.
-	 */
-	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
-		if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
-			sc->tx.seq_no += 0x10;
-		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
-		hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
-	}
+	ath_assign_seq(ath9k_hw_common(sc->sc_ah), skb);
 
 	if ((vif && vif->type != NL80211_IFTYPE_AP &&
 	            vif->type != NL80211_IFTYPE_AP_VLAN) ||

drivers/net/wireless/ath/main.c

@@ -79,13 +79,13 @@ void ath_printk(const char *level, const struct ath_common* common,
 	vaf.fmt = fmt;
 	vaf.va = &args;
 
-	if (common && common->hw && common->hw->wiphy)
+	if (common && common->hw && common->hw->wiphy) {
 		printk("%sath: %s: %pV",
 		       level, wiphy_name(common->hw->wiphy), &vaf);
-	else
+		trace_ath_log(common->hw->wiphy, &vaf);
+	} else {
 		printk("%sath: %pV", level, &vaf);
-
-	trace_ath_log(common->hw->wiphy, &vaf);
+	}
 
 	va_end(args);
 }

drivers/net/wireless/rtl818x/rtl8180/dev.c

@@ -742,35 +742,49 @@ static void rtl8180_int_disable(struct ieee80211_hw *dev)
 }
 
 static void rtl8180_conf_basic_rates(struct ieee80211_hw *dev,
-			    u32 rates_mask)
+			    u32 basic_mask)
 {
 	struct rtl8180_priv *priv = dev->priv;
-
-	u8 max, min;
 	u16 reg;
-
-	max = fls(rates_mask) - 1;
-	min = ffs(rates_mask) - 1;
+	u32 resp_mask;
+	u8 basic_max;
+	u8 resp_max, resp_min;
+
+	resp_mask = basic_mask;
+	/* IEEE80211 says the response rate should be equal to the highest basic
+	 * rate that is not faster than received frame. But it says also that if
+	 * the basic rate set does not contains any rate for the current
+	 * modulation class then mandatory rate set must be used for that
+	 * modulation class. Eventually add OFDM mandatory rates..
+	 */
+	if ((resp_mask & 0xf) == resp_mask)
+		resp_mask |= 0x150; /* 6, 12, 24Mbps */
 
 	switch (priv->chip_family) {
 
 	case RTL818X_CHIP_FAMILY_RTL8180:
 		/* in 8180 this is NOT a BITMAP */
+		basic_max = fls(basic_mask) - 1;
 		reg = rtl818x_ioread16(priv, &priv->map->BRSR);
 		reg &= ~3;
-		reg |= max;
+		reg |= basic_max;
 		rtl818x_iowrite16(priv, &priv->map->BRSR, reg);
 		break;
 
 	case RTL818X_CHIP_FAMILY_RTL8185:
+		resp_max = fls(resp_mask) - 1;
+		resp_min = ffs(resp_mask) - 1;
 		/* in 8185 this is a BITMAP */
-		rtl818x_iowrite16(priv, &priv->map->BRSR, rates_mask);
-		rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (max << 4) | min);
+		rtl818x_iowrite16(priv, &priv->map->BRSR, basic_mask);
+		rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (resp_max << 4) |
+				resp_min);
 		break;
 
 	case RTL818X_CHIP_FAMILY_RTL8187SE:
-		/* in 8187se this is a BITMAP */
-		rtl818x_iowrite16(priv, &priv->map->BRSR_8187SE, rates_mask);
+		/* in 8187se this is a BITMAP. BRSR reg actually sets
+		 * response rates.
+		 */
+		rtl818x_iowrite16(priv, &priv->map->BRSR_8187SE, resp_mask);
 		break;
 	}
 }

drivers/net/wireless/rtlwifi/wifi.h

@@ -1370,7 +1370,7 @@ struct rtl_mac {
 	bool rdg_en;
 
 	/*AP*/
-	u8 bssid[6];
+	u8 bssid[ETH_ALEN] __aligned(2);
 	u32 vendor;
 	u8 mcs[16];	/* 16 bytes mcs for HT rates. */
 	u32 basic_rates; /* b/g rates */

include/linux/micrel_phy.h

@@ -37,6 +37,7 @@
 
 /* struct phy_device dev_flags definitions */
 #define MICREL_PHY_50MHZ_CLK	0x00000001
+#define MICREL_PHY_25MHZ_CLK	0x00000002
 
 #define MICREL_KSZ9021_EXTREG_CTRL	0xB
 #define MICREL_KSZ9021_EXTREG_DATA_WRITE	0xC

include/net/netfilter/ipv6/nf_reject.h

@@ -1,11 +1,7 @@
 #ifndef _IPV6_NF_REJECT_H
 #define _IPV6_NF_REJECT_H
 
-#include <net/ipv6.h>
-#include <net/ip6_route.h>
-#include <net/ip6_fib.h>
-#include <net/ip6_checksum.h>
-#include <linux/netfilter_ipv6.h>
+#include <linux/icmpv6.h>
 
 static inline void
 nf_send_unreach6(struct net *net, struct sk_buff *skb_in, unsigned char code,
@@ -17,155 +13,6 @@ nf_send_unreach6(struct net *net, struct sk_buff *skb_in, unsigned char code,
 	icmpv6_send(skb_in, ICMPV6_DEST_UNREACH, code, 0);
 }
 
-/* Send RST reply */
-static void nf_send_reset6(struct net *net, struct sk_buff *oldskb, int hook)
-{
-	struct sk_buff *nskb;
-	struct tcphdr otcph, *tcph;
-	unsigned int otcplen, hh_len;
-	int tcphoff, needs_ack;
-	const struct ipv6hdr *oip6h = ipv6_hdr(oldskb);
-	struct ipv6hdr *ip6h;
-#define DEFAULT_TOS_VALUE	0x0U
-	const __u8 tclass = DEFAULT_TOS_VALUE;
-	struct dst_entry *dst = NULL;
-	u8 proto;
-	__be16 frag_off;
-	struct flowi6 fl6;
-
-	if ((!(ipv6_addr_type(&oip6h->saddr) & IPV6_ADDR_UNICAST)) ||
-	    (!(ipv6_addr_type(&oip6h->daddr) & IPV6_ADDR_UNICAST))) {
-		pr_debug("addr is not unicast.\n");
-		return;
-	}
-
-	proto = oip6h->nexthdr;
-	tcphoff = ipv6_skip_exthdr(oldskb, ((u8*)(oip6h+1) - oldskb->data), &proto, &frag_off);
-
-	if ((tcphoff < 0) || (tcphoff > oldskb->len)) {
-		pr_debug("Cannot get TCP header.\n");
-		return;
-	}
-
-	otcplen = oldskb->len - tcphoff;
-
-	/* IP header checks: fragment, too short. */
-	if (proto != IPPROTO_TCP || otcplen < sizeof(struct tcphdr)) {
-		pr_debug("proto(%d) != IPPROTO_TCP, "
-			 "or too short. otcplen = %d\n",
-			 proto, otcplen);
-		return;
-	}
-
-	if (skb_copy_bits(oldskb, tcphoff, &otcph, sizeof(struct tcphdr)))
-		BUG();
-
-	/* No RST for RST. */
-	if (otcph.rst) {
-		pr_debug("RST is set\n");
-		return;
-	}
-
-	/* Check checksum. */
-	if (nf_ip6_checksum(oldskb, hook, tcphoff, IPPROTO_TCP)) {
-		pr_debug("TCP checksum is invalid\n");
-		return;
-	}
-
-	memset(&fl6, 0, sizeof(fl6));
-	fl6.flowi6_proto = IPPROTO_TCP;
-	fl6.saddr = oip6h->daddr;
-	fl6.daddr = oip6h->saddr;
-	fl6.fl6_sport = otcph.dest;
-	fl6.fl6_dport = otcph.source;
-	security_skb_classify_flow(oldskb, flowi6_to_flowi(&fl6));
-	dst = ip6_route_output(net, NULL, &fl6);
-	if (dst == NULL || dst->error) {
-		dst_release(dst);
-		return;
-	}
-	dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), NULL, 0);
-	if (IS_ERR(dst))
-		return;
-
-	hh_len = (dst->dev->hard_header_len + 15)&~15;
-	nskb = alloc_skb(hh_len + 15 + dst->header_len + sizeof(struct ipv6hdr)
-			 + sizeof(struct tcphdr) + dst->trailer_len,
-			 GFP_ATOMIC);
-
-	if (!nskb) {
-		net_dbg_ratelimited("cannot alloc skb\n");
-		dst_release(dst);
-		return;
-	}
-
-	skb_dst_set(nskb, dst);
-
-	skb_reserve(nskb, hh_len + dst->header_len);
-
-	skb_put(nskb, sizeof(struct ipv6hdr));
-	skb_reset_network_header(nskb);
-	ip6h = ipv6_hdr(nskb);
-	ip6_flow_hdr(ip6h, tclass, 0);
-	ip6h->hop_limit = ip6_dst_hoplimit(dst);
-	ip6h->nexthdr = IPPROTO_TCP;
-	ip6h->saddr = oip6h->daddr;
-	ip6h->daddr = oip6h->saddr;
-
-	skb_reset_transport_header(nskb);
-	tcph = (struct tcphdr *)skb_put(nskb, sizeof(struct tcphdr));
-	/* Truncate to length (no data) */
-	tcph->doff = sizeof(struct tcphdr)/4;
-	tcph->source = otcph.dest;
-	tcph->dest = otcph.source;
-
-	if (otcph.ack) {
-		needs_ack = 0;
-		tcph->seq = otcph.ack_seq;
-		tcph->ack_seq = 0;
-	} else {
-		needs_ack = 1;
-		tcph->ack_seq = htonl(ntohl(otcph.seq) + otcph.syn + otcph.fin
-				      + otcplen - (otcph.doff<<2));
-		tcph->seq = 0;
-	}
-
-	/* Reset flags */
-	((u_int8_t *)tcph)[13] = 0;
-	tcph->rst = 1;
-	tcph->ack = needs_ack;
-	tcph->window = 0;
-	tcph->urg_ptr = 0;
-	tcph->check = 0;
-
-	/* Adjust TCP checksum */
-	tcph->check = csum_ipv6_magic(&ipv6_hdr(nskb)->saddr,
-				      &ipv6_hdr(nskb)->daddr,
-				      sizeof(struct tcphdr), IPPROTO_TCP,
-				      csum_partial(tcph,
-						   sizeof(struct tcphdr), 0));
-
-	nf_ct_attach(nskb, oldskb);
-
-#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
-	/* If we use ip6_local_out for bridged traffic, the MAC source on
-	 * the RST will be ours, instead of the destination's.  This confuses
-	 * some routers/firewalls, and they drop the packet.  So we need to
-	 * build the eth header using the original destination's MAC as the
-	 * source, and send the RST packet directly.
-	 */
-	if (oldskb->nf_bridge) {
-		struct ethhdr *oeth = eth_hdr(oldskb);
-		nskb->dev = oldskb->nf_bridge->physindev;
-		nskb->protocol = htons(ETH_P_IPV6);
-		ip6h->payload_len = htons(sizeof(struct tcphdr));
-		if (dev_hard_header(nskb, nskb->dev, ntohs(nskb->protocol),
-				    oeth->h_source, oeth->h_dest, nskb->len) < 0)
-			return;
-		dev_queue_xmit(nskb);
-	} else
-#endif
-		ip6_local_out(nskb);
-}
+void nf_send_reset6(struct net *net, struct sk_buff *oldskb, int hook);
 
 #endif /* _IPV6_NF_REJECT_H */

include/uapi/linux/netfilter/nf_tables.h

@@ -774,7 +774,7 @@ enum nft_reject_inet_code {
 	NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
 	__NFT_REJECT_ICMPX_MAX
 };
-#define NFT_REJECT_ICMPX_MAX	(__NFT_REJECT_ICMPX_MAX + 1)
+#define NFT_REJECT_ICMPX_MAX	(__NFT_REJECT_ICMPX_MAX - 1)
 
 /**
  * enum nft_reject_attributes - nf_tables reject expression netlink attributes

net/Kconfig

@@ -6,6 +6,7 @@ menuconfig NET
 	bool "Networking support"
 	select NLATTR
 	select GENERIC_NET_UTILS
+	select ANON_INODES
 	---help---
 	  Unless you really know what you are doing, you should say Y here.
 	  The reason is that some programs need kernel networking support even

net/core/filter.c

@@ -51,9 +51,9 @@
  *	@skb: buffer to filter
  *
  * Run the filter code and then cut skb->data to correct size returned by
- * sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller
+ * SK_RUN_FILTER. If pkt_len is 0 we toss packet. If skb->len is smaller
  * than pkt_len we keep whole skb->data. This is the socket level
- * wrapper to sk_run_filter. It returns 0 if the packet should
+ * wrapper to SK_RUN_FILTER. It returns 0 if the packet should
  * be accepted or -EPERM if the packet should be tossed.
  *
  */
@@ -565,12 +565,9 @@ err:
 }
 
 /* Security:
- *
- * A BPF program is able to use 16 cells of memory to store intermediate
- * values (check u32 mem[BPF_MEMWORDS] in sk_run_filter()).
  *
  * As we dont want to clear mem[] array for each packet going through
- * sk_run_filter(), we check that filter loaded by user never try to read
+ * __bpf_prog_run(), we check that filter loaded by user never try to read
  * a cell if not previously written, and we check all branches to be sure
  * a malicious user doesn't try to abuse us.
  */

net/core/flow_dissector.c

@@ -100,6 +100,13 @@ ip:
 		if (ip_is_fragment(iph))
 			ip_proto = 0;
 
+		/* skip the address processing if skb is NULL.  The assumption
+		 * here is that if there is no skb we are not looking for flow
+		 * info but lengths and protocols.
+		 */
+		if (!skb)
+			break;
+
 		iph_to_flow_copy_addrs(flow, iph);
 		break;
 	}
@@ -114,17 +121,15 @@ ipv6:
 			return false;
 
 		ip_proto = iph->nexthdr;
-		flow->src = (__force __be32)ipv6_addr_hash(&iph->saddr);
-		flow->dst = (__force __be32)ipv6_addr_hash(&iph->daddr);
 		nhoff += sizeof(struct ipv6hdr);
 
-		/* skip the flow label processing if skb is NULL.  The
-		 * assumption here is that if there is no skb we are not
-		 * looking for flow info as much as we are length.
-		 */
+		/* see comment above in IPv4 section */
 		if (!skb)
 			break;
 
+		flow->src = (__force __be32)ipv6_addr_hash(&iph->saddr);
+		flow->dst = (__force __be32)ipv6_addr_hash(&iph->daddr);
+
 		flow_label = ip6_flowlabel(iph);
 		if (flow_label) {
 			/* Awesome, IPv6 packet has a flow label so we can
@@ -231,9 +236,13 @@ ipv6:
 
 	flow->n_proto = proto;
 	flow->ip_proto = ip_proto;
-	flow->ports = __skb_flow_get_ports(skb, nhoff, ip_proto, data, hlen);
 	flow->thoff = (u16) nhoff;
 
+	/* unless skb is set we don't need to record port info */
+	if (skb)
+		flow->ports = __skb_flow_get_ports(skb, nhoff, ip_proto,
+						   data, hlen);
+
 	return true;
 }
 EXPORT_SYMBOL(__skb_flow_dissect);
@@ -334,15 +343,16 @@ u32 __skb_get_poff(const struct sk_buff *skb, void *data,
 
 	switch (keys->ip_proto) {
 	case IPPROTO_TCP: {
-		const struct tcphdr *tcph;
-		struct tcphdr _tcph;
+		/* access doff as u8 to avoid unaligned access */
+		const u8 *doff;
+		u8 _doff;
 
-		tcph = __skb_header_pointer(skb, poff, sizeof(_tcph),
-					    data, hlen, &_tcph);
-		if (!tcph)
+		doff = __skb_header_pointer(skb, poff + 12, sizeof(_doff),
+					    data, hlen, &_doff);
+		if (!doff)
 			return poff;
 
-		poff += max_t(u32, sizeof(struct tcphdr), tcph->doff * 4);
+		poff += max_t(u32, sizeof(struct tcphdr), (*doff & 0xF0) >> 2);
 		break;
 	}
 	case IPPROTO_UDP:

net/core/skbuff.c

@@ -360,18 +360,29 @@ refill:
 				goto end;
 		}
 		nc->frag.size = PAGE_SIZE << order;
-recycle:
-		atomic_set(&nc->frag.page->_count, NETDEV_PAGECNT_MAX_BIAS);
+		/* Even if we own the page, we do not use atomic_set().
+		 * This would break get_page_unless_zero() users.
+		 */
+		atomic_add(NETDEV_PAGECNT_MAX_BIAS - 1,
+			   &nc->frag.page->_count);
 		nc->pagecnt_bias = NETDEV_PAGECNT_MAX_BIAS;
 		nc->frag.offset = 0;
 	}
 
 	if (nc->frag.offset + fragsz > nc->frag.size) {
-		/* avoid unnecessary locked operations if possible */
-		if ((atomic_read(&nc->frag.page->_count) == nc->pagecnt_bias) ||
-		    atomic_sub_and_test(nc->pagecnt_bias, &nc->frag.page->_count))
-			goto recycle;
-		goto refill;
+		if (atomic_read(&nc->frag.page->_count) != nc->pagecnt_bias) {
+			if (!atomic_sub_and_test(nc->pagecnt_bias,
+						 &nc->frag.page->_count))
+				goto refill;
+			/* OK, page count is 0, we can safely set it */
+			atomic_set(&nc->frag.page->_count,
+				   NETDEV_PAGECNT_MAX_BIAS);
+		} else {
+			atomic_add(NETDEV_PAGECNT_MAX_BIAS - nc->pagecnt_bias,
+				   &nc->frag.page->_count);
+		}
+		nc->pagecnt_bias = NETDEV_PAGECNT_MAX_BIAS;
+		nc->frag.offset = 0;
 	}
 
 	data = page_address(nc->frag.page) + nc->frag.offset;
@@ -4126,11 +4137,11 @@ EXPORT_SYMBOL(skb_vlan_untag);
 /**
  * alloc_skb_with_frags - allocate skb with page frags
  *
- * header_len: size of linear part
- * data_len: needed length in frags
- * max_page_order: max page order desired.
- * errcode: pointer to error code if any
- * gfp_mask: allocation mask
+ * @header_len: size of linear part
+ * @data_len: needed length in frags
+ * @max_page_order: max page order desired.
+ * @errcode: pointer to error code if any
+ * @gfp_mask: allocation mask
  *
  * This can be used to allocate a paged skb, given a maximal order for frags.
  */

net/netfilter/nft_reject.c

@@ -72,7 +72,7 @@ nla_put_failure:
 }
 EXPORT_SYMBOL_GPL(nft_reject_dump);
 
-static u8 icmp_code_v4[NFT_REJECT_ICMPX_MAX] = {
+static u8 icmp_code_v4[NFT_REJECT_ICMPX_MAX + 1] = {
 	[NFT_REJECT_ICMPX_NO_ROUTE]		= ICMP_NET_UNREACH,
 	[NFT_REJECT_ICMPX_PORT_UNREACH]		= ICMP_PORT_UNREACH,
 	[NFT_REJECT_ICMPX_HOST_UNREACH]		= ICMP_HOST_UNREACH,
@@ -81,8 +81,7 @@ static u8 icmp_code_v4[NFT_REJECT_ICMPX_MAX] = {
 
 int nft_reject_icmp_code(u8 code)
 {
-	if (code > NFT_REJECT_ICMPX_MAX)
-		return -EINVAL;
+	BUG_ON(code > NFT_REJECT_ICMPX_MAX);
 
 	return icmp_code_v4[code];
 }
@@ -90,7 +89,7 @@ int nft_reject_icmp_code(u8 code)
 EXPORT_SYMBOL_GPL(nft_reject_icmp_code);
 
 
-static u8 icmp_code_v6[NFT_REJECT_ICMPX_MAX] = {
+static u8 icmp_code_v6[NFT_REJECT_ICMPX_MAX + 1] = {
 	[NFT_REJECT_ICMPX_NO_ROUTE]		= ICMPV6_NOROUTE,
 	[NFT_REJECT_ICMPX_PORT_UNREACH]		= ICMPV6_PORT_UNREACH,
 	[NFT_REJECT_ICMPX_HOST_UNREACH]		= ICMPV6_ADDR_UNREACH,
@@ -99,8 +98,7 @@ static u8 icmp_code_v6[NFT_REJECT_ICMPX_MAX] = {
 
 int nft_reject_icmpv6_code(u8 code)
 {
-	if (code > NFT_REJECT_ICMPX_MAX)
-		return -EINVAL;
+	BUG_ON(code > NFT_REJECT_ICMPX_MAX);
 
 	return icmp_code_v6[code];
 }

net/netlabel/netlabel_kapi.c

@@ -246,7 +246,6 @@ int netlbl_cfg_unlbl_static_add(struct net *net,
  * @addr: IP address in network byte order (struct in[6]_addr)
  * @mask: address mask in network byte order (struct in[6]_addr)
  * @family: address family
- * @secid: LSM secid value for the entry
  * @audit_info: NetLabel audit information
  *
  * Description:

net/rfkill/core.c

@@ -329,7 +329,7 @@ static atomic_t rfkill_input_disabled = ATOMIC_INIT(0);
 /**
  * __rfkill_switch_all - Toggle state of all switches of given type
  * @type: type of interfaces to be affected
- * @state: the new state
+ * @blocked: the new state
  *
  * This function sets the state of all switches of given type,
  * unless a specific switch is claimed by userspace (in which case,
@@ -353,7 +353,7 @@ static void __rfkill_switch_all(const enum rfkill_type type, bool blocked)
 /**
  * rfkill_switch_all - Toggle state of all switches of given type
  * @type: type of interfaces to be affected
- * @state: the new state
+ * @blocked: the new state
  *
  * Acquires rfkill_global_mutex and calls __rfkill_switch_all(@type, @state).
  * Please refer to __rfkill_switch_all() for details.

net/sched/sch_generic.c

@@ -57,7 +57,8 @@ static inline int dev_requeue_skb(struct sk_buff *skb, struct Qdisc *q)
 
 static void try_bulk_dequeue_skb(struct Qdisc *q,
 				 struct sk_buff *skb,
-				 const struct netdev_queue *txq)
+				 const struct netdev_queue *txq,
+				 int *packets)
 {
 	int bytelimit = qdisc_avail_bulklimit(txq) - skb->len;
 
@@ -70,6 +71,7 @@ static void try_bulk_dequeue_skb(struct Qdisc *q,
 		bytelimit -= nskb->len; /* covers GSO len */
 		skb->next = nskb;
 		skb = nskb;
+		(*packets)++; /* GSO counts as one pkt */
 	}
 	skb->next = NULL;
 }
@@ -77,11 +79,13 @@ static void try_bulk_dequeue_skb(struct Qdisc *q,
 /* Note that dequeue_skb can possibly return a SKB list (via skb->next).
  * A requeued skb (via q->gso_skb) can also be a SKB list.
  */
-static struct sk_buff *dequeue_skb(struct Qdisc *q, bool *validate)
+static struct sk_buff *dequeue_skb(struct Qdisc *q, bool *validate,
+				   int *packets)
 {
 	struct sk_buff *skb = q->gso_skb;
 	const struct netdev_queue *txq = q->dev_queue;
 
+	*packets = 1;
 	*validate = true;
 	if (unlikely(skb)) {
 		/* check the reason of requeuing without tx lock first */
@@ -98,7 +102,7 @@ static struct sk_buff *dequeue_skb(struct Qdisc *q, bool *validate)
 		    !netif_xmit_frozen_or_stopped(txq)) {
 			skb = q->dequeue(q);
 			if (skb && qdisc_may_bulk(q))
-				try_bulk_dequeue_skb(q, skb, txq);
+				try_bulk_dequeue_skb(q, skb, txq, packets);
 		}
 	}
 	return skb;
@@ -204,7 +208,7 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
  *				>0 - queue is not empty.
  *
  */
-static inline int qdisc_restart(struct Qdisc *q)
+static inline int qdisc_restart(struct Qdisc *q, int *packets)
 {
 	struct netdev_queue *txq;
 	struct net_device *dev;
@@ -213,7 +217,7 @@ static inline int qdisc_restart(struct Qdisc *q)
 	bool validate;
 
 	/* Dequeue packet */
-	skb = dequeue_skb(q, &validate);
+	skb = dequeue_skb(q, &validate, packets);
 	if (unlikely(!skb))
 		return 0;
 
@@ -227,14 +231,16 @@ static inline int qdisc_restart(struct Qdisc *q)
 void __qdisc_run(struct Qdisc *q)
 {
 	int quota = weight_p;
+	int packets;
 
-	while (qdisc_restart(q)) {
+	while (qdisc_restart(q, &packets)) {
 		/*
 		 * Ordered by possible occurrence: Postpone processing if
 		 * 1. we've exceeded packet quota
 		 * 2. another process needs the CPU;
 		 */
-		if (--quota <= 0 || need_resched()) {
+		quota -= packets;
+		if (quota <= 0 || need_resched()) {
 			__netif_schedule(q);
 			break;
 		}