Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:
 "Here is what we have this merge window:

   1) Support SW steering for mlx5 Connect-X6Dx, from Yevgeny Kliteynik.

   2) Add RSS multi group support to octeontx2-pf driver, from Geetha
      Sowjanya.

   3) Add support for KS8851 PHY. From Marek Vasut.

   4) Add support for GarfieldPeak bluetooth controller from Kiran K.

   5) Add support for half-duplex tcan4x5x can controllers.

   6) Add batch skb rx processing to bcrm63xx_enet, from Sieng Piaw
      Liew.

   7) Rework RX port offload infrastructure, particularly wrt, UDP
      tunneling, from Jakub Kicinski.

   8) Add BCM72116 PHY support, from Florian Fainelli.

   9) Remove Dsa specific notifiers, they are unnecessary. From Vladimir
      Oltean.

  10) Add support for picosecond rx delay in dwmac-meson8b chips. From
      Martin Blumenstingl.

  11) Support TSO on xfrm interfaces from Eyal Birger.

  12) Add support for MP_PRIO to mptcp stack, from Geliang Tang.

  13) Support BCM4908 integrated switch, from Rafał Miłecki.

  14) Support for directly accessing kernel module variables via module
      BTF info, from Andrii Naryiko.

  15) Add DASH (esktop and mobile Architecture for System Hardware)
      support to r8169 driver, from Heiner Kallweit.

  16) Add rx vlan filtering to dpaa2-eth, from Ionut-robert Aron.

  17) Add support for 100 base0x SFP devices, from Bjarni Jonasson.

  18) Support link aggregation in DSA, from Tobias Waldekranz.

  19) Support for bitwidse atomics in bpf, from Brendan Jackman.

  20) SmartEEE support in at803x driver, from Russell King.

  21) Add support for flow based tunneling to GTP, from Pravin B Shelar.

  22) Allow arbitrary number of interconnrcts in ipa, from Alex Elder.

  23) TLS RX offload for bonding, from Tariq Toukan.

  24) RX decap offklload support in mac80211, from Felix Fietkou.

  25) devlink health saupport in octeontx2-af, from George Cherian.

  26) Add TTL attr to SCM_TIMESTAMP_OPT_STATS, from Yousuk Seung

  27) Delegated actionss support in mptcp, from Paolo Abeni.

  28) Support receive timestamping when doin zerocopy tcp receive. From
      Arjun Ray.

  29) HTB offload support for mlx5, from Maxim Mikityanskiy.

  30) UDP GRO forwarding, from Maxim Mikityanskiy.

  31) TAPRIO offloading in dsa hellcreek driver, from Kurt Kanzenbach.

  32) Weighted random twos choice algorithm for ipvs, from Darby Payne.

  33) Fix netdev registration deadlock, from Johannes Berg.

  34) Various conversions to new tasklet api, from EmilRenner Berthing.

  35) Bulk skb allocations in veth, from Lorenzo Bianconi.

  36) New ethtool interface for lane setting, from Danielle Ratson.

  37) Offload failiure notifications for routes, from Amit Cohen.

  38) BCM4908 support, from Rafał Miłecki.

  39) Support several new iwlwifi chips, from Ihab Zhaika.

  40) Flow drector support for ipv6 in i40e, from Przemyslaw Patynowski.

  41) Support for mhi prrotocols, from Loic Poulain.

  42) Optimize bpf program stats.

  43) Implement RFC6056, for better port randomization, from Eric
      Dumazet.

  44) hsr tag offloading support from George McCollister.

  45) Netpoll support in qede, from Bhaskar Upadhaya.

  46) 2005/400g speed support in bonding 3ad mode, from Nikolay
      Aleksandrov.

  47) Netlink event support in mptcp, from Florian Westphal.

  48) Better skbuff caching, from Alexander Lobakin.

  49) MRP (Media Redundancy Protocol) offloading in DSA and a few
      drivers, from Horatiu Vultur.

  50) mqprio saupport in mvneta, from Maxime Chevallier.

  51) Remove of_phy_attach, no longer needed, from Florian Fainelli"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1766 commits)
  octeontx2-pf: Fix otx2_get_fecparam()
  cteontx2-pf: cn10k: Prevent harmless double shift bugs
  net: stmmac: Add PCI bus info to ethtool driver query output
  ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary
  ptp: ptp_clockmatrix: Simplify code - remove unnecessary `err` variable.
  ptp: ptp_clockmatrix: Coding style - tighten vertical spacing.
  ptp: ptp_clockmatrix: Clean-up dev_*() messages.
  ptp: ptp_clockmatrix: Remove unused header declarations.
  ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.
  ptp: ptp_clockmatrix: Add wait_for_sys_apll_dpll_lock.
  net: stmmac: dwmac-sun8i: Add a shutdown callback
  net: stmmac: dwmac-sun8i: Minor probe function cleanup
  net: stmmac: dwmac-sun8i: Use reset_control_reset
  net: stmmac: dwmac-sun8i: Remove unnecessary PHY power check
  net: stmmac: dwmac-sun8i: Return void from PHY unpower
  r8169: use macro pm_ptr
  net: mdio: Remove of_phy_attach()
  net: mscc: ocelot: select PACKING in the Kconfig
  net: re-solve some conflicts after net -> net-next merge
  net: dsa: tag_rtl4_a: Support also egress tags
  ...

5 files changed, 213 insertions, 113 deletions

diff --git a/drivers/net/can/m_can/Makefile b/drivers/net/can/m_can/Makefile
index ef7963ff2006..d717bbc9e033 100644
--- a/drivers/net/can/m_can/Makefile
+++ b/drivers/net/can/m_can/Makefile
@@ -7,3 +7,7 @@ obj-$(CONFIG_CAN_M_CAN) += m_can.o
 obj-$(CONFIG_CAN_M_CAN_PCI) += m_can_pci.o
 obj-$(CONFIG_CAN_M_CAN_PLATFORM) += m_can_platform.o
 obj-$(CONFIG_CAN_M_CAN_TCAN4X5X) += tcan4x5x.o
+
+tcan4x5x-objs :=
+tcan4x5x-objs += tcan4x5x-core.o
+tcan4x5x-objs += tcan4x5x-regmap.o
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index da551fd0f502..3752520a7d4b 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -930,7 +930,7 @@ static void m_can_echo_tx_event(struct net_device *dev)
 						(fgi << TXEFA_EFAI_SHIFT)));
 
 		/* update stats */
-		stats->tx_bytes += can_get_echo_skb(dev, msg_mark);
+		stats->tx_bytes += can_get_echo_skb(dev, msg_mark, NULL);
 		stats->tx_packets++;
 	}
 }
@@ -972,7 +972,7 @@ static irqreturn_t m_can_isr(int irq, void *dev_id)
 	if (cdev->version == 30) {
 		if (ir & IR_TC) {
 			/* Transmission Complete Interrupt*/
-			stats->tx_bytes += can_get_echo_skb(dev, 0);
+			stats->tx_bytes += can_get_echo_skb(dev, 0, NULL);
 			stats->tx_packets++;
 			can_led_event(dev, CAN_LED_EVENT_TX);
 			netif_wake_queue(dev);
@@ -1483,7 +1483,7 @@ static netdev_tx_t m_can_tx_handler(struct m_can_classdev *cdev)
 					 M_CAN_FIFO_DATA(i / 4),
 					 *(u32 *)(cf->data + i));
 
-		can_put_echo_skb(skb, dev, 0);
+		can_put_echo_skb(skb, dev, 0, 0);
 
 		if (cdev->can.ctrlmode & CAN_CTRLMODE_FD) {
 			cccr = m_can_read(cdev, M_CAN_CCCR);
@@ -1554,7 +1554,7 @@ static netdev_tx_t m_can_tx_handler(struct m_can_classdev *cdev)
 		/* Push loopback echo.
 		 * Will be looped back on TX interrupt based on message marker
 		 */
-		can_put_echo_skb(skb, dev, putidx);
+		can_put_echo_skb(skb, dev, putidx, 0);
 
 		/* Enable TX FIFO element to start transfer  */
 		m_can_write(cdev, M_CAN_TXBAR, (1 << putidx));
diff --git a/drivers/net/can/m_can/tcan4x5x.c b/drivers/net/can/m_can/tcan4x5x-core.c
index 970f0e9d19bf..b7caec769ddb 100644
--- a/drivers/net/can/m_can/tcan4x5x.c
+++ b/drivers/net/can/m_can/tcan4x5x-core.c
@@ -2,15 +2,8 @@
 // SPI to CAN driver for the Texas Instruments TCAN4x5x
 // Copyright (C) 2018-19 Texas Instruments Incorporated - http://www.ti.com/
 
-#include <linux/regmap.h>
-#include <linux/spi/spi.h>
+#include "tcan4x5x.h"
 
-#include <linux/regulator/consumer.h>
-#include <linux/gpio/consumer.h>
-
-#include "m_can.h"
-
-#define DEVICE_NAME "tcan4x5x"
 #define TCAN4X5X_EXT_CLK_DEF 40000000
 
 #define TCAN4X5X_DEV_ID0 0x00
@@ -88,14 +81,10 @@
 
 #define TCAN4X5X_MRAM_START 0x8000
 #define TCAN4X5X_MCAN_OFFSET 0x1000
-#define TCAN4X5X_MAX_REGISTER 0x8fff
 
 #define TCAN4X5X_CLEAR_ALL_INT 0xffffffff
 #define TCAN4X5X_SET_ALL_INT 0xffffffff
 
-#define TCAN4X5X_WRITE_CMD (0x61 << 24)
-#define TCAN4X5X_READ_CMD (0x41 << 24)
-
 #define TCAN4X5X_MODE_SEL_MASK (BIT(7) | BIT(6))
 #define TCAN4X5X_MODE_SLEEP 0x00
 #define TCAN4X5X_MODE_STANDBY BIT(6)
@@ -113,18 +102,6 @@
 #define TCAN4X5X_WD_3_S_TIMER BIT(29)
 #define TCAN4X5X_WD_6_S_TIMER (BIT(28) | BIT(29))
 
-struct tcan4x5x_priv {
-	struct m_can_classdev cdev;
-
-	struct regmap *regmap;
-	struct spi_device *spi;
-
-	struct gpio_desc *reset_gpio;
-	struct gpio_desc *device_wake_gpio;
-	struct gpio_desc *device_state_gpio;
-	struct regulator *power;
-};
-
 static inline struct tcan4x5x_priv *cdev_to_priv(struct m_can_classdev *cdev)
 {
 	return container_of(cdev, struct tcan4x5x_priv, cdev);
@@ -167,72 +144,6 @@ static int tcan4x5x_reset(struct tcan4x5x_priv *priv)
 	return ret;
 }
 
-static int regmap_spi_gather_write(void *context, const void *reg,
-				   size_t reg_len, const void *val,
-				   size_t val_len)
-{
-	struct device *dev = context;
-	struct spi_device *spi = to_spi_device(dev);
-	struct spi_message m;
-	u32 addr;
-	struct spi_transfer t[2] = {
-		{ .tx_buf = &addr, .len = reg_len, .cs_change = 0,},
-		{ .tx_buf = val, .len = val_len, },
-	};
-
-	addr = TCAN4X5X_WRITE_CMD | (*((u16 *)reg) << 8) | val_len >> 2;
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t[0], &m);
-	spi_message_add_tail(&t[1], &m);
-
-	return spi_sync(spi, &m);
-}
-
-static int tcan4x5x_regmap_write(void *context, const void *data, size_t count)
-{
-	u16 *reg = (u16 *)(data);
-	const u32 *val = data + 4;
-
-	return regmap_spi_gather_write(context, reg, 4, val, count - 4);
-}
-
-static int regmap_spi_async_write(void *context,
-				  const void *reg, size_t reg_len,
-				  const void *val, size_t val_len,
-				  struct regmap_async *a)
-{
-	return -ENOTSUPP;
-}
-
-static struct regmap_async *regmap_spi_async_alloc(void)
-{
-	return NULL;
-}
-
-static int tcan4x5x_regmap_read(void *context,
-				const void *reg, size_t reg_size,
-				void *val, size_t val_size)
-{
-	struct device *dev = context;
-	struct spi_device *spi = to_spi_device(dev);
-
-	u32 addr = TCAN4X5X_READ_CMD | (*((u16 *)reg) << 8) | val_size >> 2;
-
-	return spi_write_then_read(spi, &addr, reg_size, (u32 *)val, val_size);
-}
-
-static struct regmap_bus tcan4x5x_bus = {
-	.write = tcan4x5x_regmap_write,
-	.gather_write = regmap_spi_gather_write,
-	.async_write = regmap_spi_async_write,
-	.async_alloc = regmap_spi_async_alloc,
-	.read = tcan4x5x_regmap_read,
-	.read_flag_mask = 0x00,
-	.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
-	.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
-};
-
 static u32 tcan4x5x_read_reg(struct m_can_classdev *cdev, int reg)
 {
 	struct tcan4x5x_priv *priv = cdev_to_priv(cdev);
@@ -387,13 +298,6 @@ static int tcan4x5x_get_gpios(struct m_can_classdev *cdev)
 	return 0;
 }
 
-static const struct regmap_config tcan4x5x_regmap = {
-	.reg_bits = 32,
-	.val_bits = 32,
-	.cache_type = REGCACHE_NONE,
-	.max_register = TCAN4X5X_MAX_REGISTER,
-};
-
 static struct m_can_ops tcan4x5x_ops = {
 	.init = tcan4x5x_init,
 	.read_reg = tcan4x5x_read_reg,
@@ -450,17 +354,14 @@ static int tcan4x5x_can_probe(struct spi_device *spi)
 	spi_set_drvdata(spi, priv);
 
 	/* Configure the SPI bus */
-	spi->bits_per_word = 32;
+	spi->bits_per_word = 8;
 	ret = spi_setup(spi);
 	if (ret)
 		goto out_m_can_class_free_dev;
 
-	priv->regmap = devm_regmap_init(&spi->dev, &tcan4x5x_bus,
-					&spi->dev, &tcan4x5x_regmap);
-	if (IS_ERR(priv->regmap)) {
-		ret = PTR_ERR(priv->regmap);
+	ret = tcan4x5x_regmap_init(priv);
+	if (ret)
 		goto out_m_can_class_free_dev;
-	}
 
 	ret = tcan4x5x_power_enable(priv->power, 1);
 	if (ret)
@@ -502,23 +403,26 @@ static int tcan4x5x_can_remove(struct spi_device *spi)
 }
 
 static const struct of_device_id tcan4x5x_of_match[] = {
-	{ .compatible = "ti,tcan4x5x", },
-	{ }
+	{
+		.compatible = "ti,tcan4x5x",
+	}, {
+		/* sentinel */
+	},
 };
 MODULE_DEVICE_TABLE(of, tcan4x5x_of_match);
 
 static const struct spi_device_id tcan4x5x_id_table[] = {
 	{
-		.name		= "tcan4x5x",
-		.driver_data	= 0,
+		.name = "tcan4x5x",
+	}, {
+		/* sentinel */
 	},
-	{ }
 };
 MODULE_DEVICE_TABLE(spi, tcan4x5x_id_table);
 
 static struct spi_driver tcan4x5x_can_driver = {
 	.driver = {
-		.name = DEVICE_NAME,
+		.name = KBUILD_MODNAME,
 		.of_match_table = tcan4x5x_of_match,
 		.pm = NULL,
 	},
diff --git a/drivers/net/can/m_can/tcan4x5x-regmap.c b/drivers/net/can/m_can/tcan4x5x-regmap.c
new file mode 100644
index 000000000000..ca80dbaf7a3f
--- /dev/null
+++ b/drivers/net/can/m_can/tcan4x5x-regmap.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// tcan4x5x - Texas Instruments TCAN4x5x Family CAN controller driver
+//
+// Copyright (c) 2020 Pengutronix,
+//                    Marc Kleine-Budde <kernel@pengutronix.de>
+// Copyright (c) 2018-2019 Texas Instruments Incorporated
+//                    http://www.ti.com/
+
+#include "tcan4x5x.h"
+
+#define TCAN4X5X_SPI_INSTRUCTION_WRITE (0x61 << 24)
+#define TCAN4X5X_SPI_INSTRUCTION_READ (0x41 << 24)
+
+#define TCAN4X5X_MAX_REGISTER 0x8ffc
+
+static int tcan4x5x_regmap_gather_write(void *context,
+					const void *reg, size_t reg_len,
+					const void *val, size_t val_len)
+{
+	struct spi_device *spi = context;
+	struct tcan4x5x_priv *priv = spi_get_drvdata(spi);
+	struct tcan4x5x_map_buf *buf_tx = &priv->map_buf_tx;
+	struct spi_transfer xfer[] = {
+		{
+			.tx_buf = buf_tx,
+			.len = sizeof(buf_tx->cmd) + val_len,
+		},
+	};
+
+	memcpy(&buf_tx->cmd, reg, sizeof(buf_tx->cmd.cmd) +
+	       sizeof(buf_tx->cmd.addr));
+	tcan4x5x_spi_cmd_set_len(&buf_tx->cmd, val_len);
+	memcpy(buf_tx->data, val, val_len);
+
+	return spi_sync_transfer(spi, xfer, ARRAY_SIZE(xfer));
+}
+
+static int tcan4x5x_regmap_write(void *context, const void *data, size_t count)
+{
+	return tcan4x5x_regmap_gather_write(context, data, sizeof(__be32),
+					    data + sizeof(__be32),
+					    count - sizeof(__be32));
+}
+
+static int tcan4x5x_regmap_read(void *context,
+				const void *reg_buf, size_t reg_len,
+				void *val_buf, size_t val_len)
+{
+	struct spi_device *spi = context;
+	struct tcan4x5x_priv *priv = spi_get_drvdata(spi);
+	struct tcan4x5x_map_buf *buf_rx = &priv->map_buf_rx;
+	struct tcan4x5x_map_buf *buf_tx = &priv->map_buf_tx;
+	struct spi_transfer xfer[2] = {
+		{
+			.tx_buf = buf_tx,
+		}
+	};
+	struct spi_message msg;
+	int err;
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer[0], &msg);
+
+	memcpy(&buf_tx->cmd, reg_buf, sizeof(buf_tx->cmd.cmd) +
+	       sizeof(buf_tx->cmd.addr));
+	tcan4x5x_spi_cmd_set_len(&buf_tx->cmd, val_len);
+
+	if (spi->controller->flags & SPI_CONTROLLER_HALF_DUPLEX) {
+		xfer[0].len = sizeof(buf_tx->cmd);
+
+		xfer[1].rx_buf = val_buf;
+		xfer[1].len = val_len;
+		spi_message_add_tail(&xfer[1], &msg);
+	} else {
+		xfer[0].rx_buf = buf_rx;
+		xfer[0].len = sizeof(buf_tx->cmd) + val_len;
+
+		if (TCAN4X5X_SANITIZE_SPI)
+			memset(buf_tx->data, 0x0, val_len);
+	}
+
+	err = spi_sync(spi, &msg);
+	if (err)
+		return err;
+
+	if (!(spi->controller->flags & SPI_CONTROLLER_HALF_DUPLEX))
+		memcpy(val_buf, buf_rx->data, val_len);
+
+	return 0;
+}
+
+static const struct regmap_range tcan4x5x_reg_table_yes_range[] = {
+	regmap_reg_range(0x0000, 0x002c),	/* Device ID and SPI Registers */
+	regmap_reg_range(0x0800, 0x083c),	/* Device configuration registers and Interrupt Flags*/
+	regmap_reg_range(0x1000, 0x10fc),	/* M_CAN */
+	regmap_reg_range(0x8000, 0x87fc),	/* MRAM */
+};
+
+static const struct regmap_access_table tcan4x5x_reg_table = {
+	.yes_ranges = tcan4x5x_reg_table_yes_range,
+	.n_yes_ranges = ARRAY_SIZE(tcan4x5x_reg_table_yes_range),
+};
+
+static const struct regmap_config tcan4x5x_regmap = {
+	.reg_bits = 24,
+	.reg_stride = 4,
+	.pad_bits = 8,
+	.val_bits = 32,
+	.wr_table = &tcan4x5x_reg_table,
+	.rd_table = &tcan4x5x_reg_table,
+	.max_register = TCAN4X5X_MAX_REGISTER,
+	.cache_type = REGCACHE_NONE,
+	.read_flag_mask = (__force unsigned long)
+		cpu_to_be32(TCAN4X5X_SPI_INSTRUCTION_READ),
+	.write_flag_mask = (__force unsigned long)
+		cpu_to_be32(TCAN4X5X_SPI_INSTRUCTION_WRITE),
+};
+
+static const struct regmap_bus tcan4x5x_bus = {
+	.write = tcan4x5x_regmap_write,
+	.gather_write = tcan4x5x_regmap_gather_write,
+	.read = tcan4x5x_regmap_read,
+	.reg_format_endian_default = REGMAP_ENDIAN_BIG,
+	.val_format_endian_default = REGMAP_ENDIAN_BIG,
+	.max_raw_read = 256,
+	.max_raw_write = 256,
+};
+
+int tcan4x5x_regmap_init(struct tcan4x5x_priv *priv)
+{
+	priv->regmap = devm_regmap_init(&priv->spi->dev, &tcan4x5x_bus,
+					priv->spi, &tcan4x5x_regmap);
+	return PTR_ERR_OR_ZERO(priv->regmap);
+}
diff --git a/drivers/net/can/m_can/tcan4x5x.h b/drivers/net/can/m_can/tcan4x5x.h
new file mode 100644
index 000000000000..c66da829b795
--- /dev/null
+++ b/drivers/net/can/m_can/tcan4x5x.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * tcan4x5x - Texas Instruments TCAN4x5x Family CAN controller driver
+ *
+ * Copyright (c) 2020 Pengutronix,
+ *                    Marc Kleine-Budde <kernel@pengutronix.de>
+ */
+
+#ifndef _TCAN4X5X_H
+#define _TCAN4X5X_H
+
+#include <linux/gpio/consumer.h>
+#include <linux/regmap.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spi/spi.h>
+
+#include "m_can.h"
+
+#define TCAN4X5X_SANITIZE_SPI 1
+
+struct __packed tcan4x5x_buf_cmd {
+	u8 cmd;
+	__be16 addr;
+	u8 len;
+};
+
+struct tcan4x5x_map_buf {
+	struct tcan4x5x_buf_cmd cmd;
+	u8 data[256 * sizeof(u32)];
+} ____cacheline_aligned;
+
+struct tcan4x5x_priv {
+	struct m_can_classdev cdev;
+
+	struct regmap *regmap;
+	struct spi_device *spi;
+
+	struct gpio_desc *reset_gpio;
+	struct gpio_desc *device_wake_gpio;
+	struct gpio_desc *device_state_gpio;
+	struct regulator *power;
+
+	struct tcan4x5x_map_buf map_buf_rx;
+	struct tcan4x5x_map_buf map_buf_tx;
+};
+
+static inline void
+tcan4x5x_spi_cmd_set_len(struct tcan4x5x_buf_cmd *cmd, u8 len)
+{
+	/* number of u32 */
+	cmd->len = len >> 2;
+}
+
+int tcan4x5x_regmap_init(struct tcan4x5x_priv *priv);
+
+#endif